--- /dev/null
+/*
+ * chnl.c
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * DSP API channel interface: multiplexes data streams through the single
+ * physical link managed by a Bridge Bridge driver.
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/* ----------------------------------- Host OS */
+#include <dspbridge/host_os.h>
+
+/* ----------------------------------- DSP/BIOS Bridge */
+#include <dspbridge/std.h>
+#include <dspbridge/dbdefs.h>
+
+/* ----------------------------------- Trace & Debug */
+#include <dspbridge/dbc.h>
+
+/* ----------------------------------- OS Adaptation Layer */
+#include <dspbridge/cfg.h>
+#include <dspbridge/sync.h>
+
+/* ----------------------------------- Platform Manager */
+#include <dspbridge/proc.h>
+#include <dspbridge/dev.h>
+
+/* ----------------------------------- Others */
+#include <dspbridge/chnlpriv.h>
+#include <chnlobj.h>
+
+/* ----------------------------------- This */
+#include <dspbridge/chnl.h>
+
+/* ----------------------------------- Globals */
+static u32 refs;
+
+/*
+ * ======== chnl_create ========
+ * Purpose:
+ * Create a channel manager object, responsible for opening new channels
+ * and closing old ones for a given 'Bridge board.
+ */
+int chnl_create(OUT struct chnl_mgr **phChnlMgr,
+ struct dev_object *hdev_obj,
+ IN CONST struct chnl_mgrattrs *pMgrAttrs)
+{
+ int status;
+ struct chnl_mgr *hchnl_mgr;
+ struct chnl_mgr_ *chnl_mgr_obj = NULL;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phChnlMgr != NULL);
+ DBC_REQUIRE(pMgrAttrs != NULL);
+
+ *phChnlMgr = NULL;
+
+ /* Validate args: */
+ if ((0 < pMgrAttrs->max_channels) &&
+ (pMgrAttrs->max_channels <= CHNL_MAXCHANNELS))
+ status = 0;
+ else if (pMgrAttrs->max_channels == 0)
+ status = -EINVAL;
+ else
+ status = -ECHRNG;
+
+ if (pMgrAttrs->word_size == 0)
+ status = -EINVAL;
+
+ if (DSP_SUCCEEDED(status)) {
+ status = dev_get_chnl_mgr(hdev_obj, &hchnl_mgr);
+ if (DSP_SUCCEEDED(status) && hchnl_mgr != NULL)
+ status = -EEXIST;
+
+ }
+
+ if (DSP_SUCCEEDED(status)) {
+ struct bridge_drv_interface *intf_fxns;
+ dev_get_intf_fxns(hdev_obj, &intf_fxns);
+ /* Let Bridge channel module finish the create: */
+ status = (*intf_fxns->pfn_chnl_create) (&hchnl_mgr, hdev_obj,
+ pMgrAttrs);
+ if (DSP_SUCCEEDED(status)) {
+ /* Fill in DSP API channel module's fields of the
+ * chnl_mgr structure */
+ chnl_mgr_obj = (struct chnl_mgr_ *)hchnl_mgr;
+ chnl_mgr_obj->intf_fxns = intf_fxns;
+ /* Finally, return the new channel manager handle: */
+ *phChnlMgr = hchnl_mgr;
+ }
+ }
+
+ DBC_ENSURE(DSP_FAILED(status) || chnl_mgr_obj);
+
+ return status;
+}
+
+/*
+ * ======== chnl_destroy ========
+ * Purpose:
+ * Close all open channels, and destroy the channel manager.
+ */
+int chnl_destroy(struct chnl_mgr *hchnl_mgr)
+{
+ struct chnl_mgr_ *chnl_mgr_obj = (struct chnl_mgr_ *)hchnl_mgr;
+ struct bridge_drv_interface *intf_fxns;
+ int status;
+
+ DBC_REQUIRE(refs > 0);
+
+ if (chnl_mgr_obj) {
+ intf_fxns = chnl_mgr_obj->intf_fxns;
+ /* Let Bridge channel module destroy the chnl_mgr: */
+ status = (*intf_fxns->pfn_chnl_destroy) (hchnl_mgr);
+ } else {
+ status = -EFAULT;
+ }
+
+ return status;
+}
+
+/*
+ * ======== chnl_exit ========
+ * Purpose:
+ * Discontinue usage of the CHNL module.
+ */
+void chnl_exit(void)
+{
+ DBC_REQUIRE(refs > 0);
+
+ refs--;
+
+ DBC_ENSURE(refs >= 0);
+}
+
+/*
+ * ======== chnl_init ========
+ * Purpose:
+ * Initialize the CHNL module's private state.
+ */
+bool chnl_init(void)
+{
+ bool ret = true;
+
+ DBC_REQUIRE(refs >= 0);
+
+ if (ret)
+ refs++;
+
+ DBC_ENSURE((ret && (refs > 0)) || (!ret && (refs >= 0)));
+
+ return ret;
+}
--- /dev/null
+/*
+ * chnlobj.h
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * Structure subcomponents of channel class library channel objects which
+ * are exposed to DSP API from Bridge driver.
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef CHNLOBJ_
+#define CHNLOBJ_
+
+#include <dspbridge/chnldefs.h>
+#include <dspbridge/dspdefs.h>
+
+/*
+ * This struct is the first field in a chnl_mgr struct. Other. implementation
+ * specific fields follow this structure in memory.
+ */
+struct chnl_mgr_ {
+ /* These must be the first fields in a chnl_mgr struct: */
+
+ /* Function interface to Bridge driver. */
+ struct bridge_drv_interface *intf_fxns;
+};
+
+/*
+ * This struct is the first field in a chnl_object struct. Other,
+ * implementation specific fields follow this structure in memory.
+ */
+struct chnl_object_ {
+ /* These must be the first fields in a chnl_object struct: */
+ struct chnl_mgr_ *chnl_mgr_obj; /* Pointer back to channel manager. */
+};
+
+#endif /* CHNLOBJ_ */
--- /dev/null
+/*
+ * cmm.c
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * The Communication(Shared) Memory Management(CMM) module provides
+ * shared memory management services for DSP/BIOS Bridge data streaming
+ * and messaging.
+ *
+ * Multiple shared memory segments can be registered with CMM.
+ * Each registered SM segment is represented by a SM "allocator" that
+ * describes a block of physically contiguous shared memory used for
+ * future allocations by CMM.
+ *
+ * Memory is coelesced back to the appropriate heap when a buffer is
+ * freed.
+ *
+ * Notes:
+ * Va: Virtual address.
+ * Pa: Physical or kernel system address.
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/* ----------------------------------- DSP/BIOS Bridge */
+#include <dspbridge/std.h>
+#include <dspbridge/dbdefs.h>
+
+/* ----------------------------------- Trace & Debug */
+#include <dspbridge/dbc.h>
+
+/* ----------------------------------- OS Adaptation Layer */
+#include <dspbridge/cfg.h>
+#include <dspbridge/list.h>
+#include <dspbridge/sync.h>
+#include <dspbridge/utildefs.h>
+
+/* ----------------------------------- Platform Manager */
+#include <dspbridge/dev.h>
+#include <dspbridge/proc.h>
+
+/* ----------------------------------- This */
+#include <dspbridge/cmm.h>
+
+/* ----------------------------------- Defines, Data Structures, Typedefs */
+#define NEXT_PA(pnode) (pnode->dw_pa + pnode->ul_size)
+
+/* Other bus/platform translations */
+#define DSPPA2GPPPA(base, x, y) ((x)+(y))
+#define GPPPA2DSPPA(base, x, y) ((x)-(y))
+
+/*
+ * Allocators define a block of contiguous memory used for future allocations.
+ *
+ * sma - shared memory allocator.
+ * vma - virtual memory allocator.(not used).
+ */
+struct cmm_allocator { /* sma */
+ unsigned int shm_base; /* Start of physical SM block */
+ u32 ul_sm_size; /* Size of SM block in bytes */
+ unsigned int dw_vm_base; /* Start of VM block. (Dev driver
+ * context for 'sma') */
+ u32 dw_dsp_phys_addr_offset; /* DSP PA to GPP PA offset for this
+ * SM space */
+ s8 c_factor; /* DSPPa to GPPPa Conversion Factor */
+ unsigned int dw_dsp_base; /* DSP virt base byte address */
+ u32 ul_dsp_size; /* DSP seg size in bytes */
+ struct cmm_object *hcmm_mgr; /* back ref to parent mgr */
+ /* node list of available memory */
+ struct lst_list *free_list_head;
+ /* node list of memory in use */
+ struct lst_list *in_use_list_head;
+};
+
+struct cmm_xlator { /* Pa<->Va translator object */
+ /* CMM object this translator associated */
+ struct cmm_object *hcmm_mgr;
+ /*
+ * Client process virtual base address that corresponds to phys SM
+ * base address for translator's ul_seg_id.
+ * Only 1 segment ID currently supported.
+ */
+ unsigned int dw_virt_base; /* virtual base address */
+ u32 ul_virt_size; /* size of virt space in bytes */
+ u32 ul_seg_id; /* Segment Id */
+};
+
+/* CMM Mgr */
+struct cmm_object {
+ /*
+ * Cmm Lock is used to serialize access mem manager for multi-threads.
+ */
+ struct mutex cmm_lock; /* Lock to access cmm mgr */
+ struct lst_list *node_free_list_head; /* Free list of memory nodes */
+ u32 ul_min_block_size; /* Min SM block; default 16 bytes */
+ u32 dw_page_size; /* Memory Page size (1k/4k) */
+ /* GPP SM segment ptrs */
+ struct cmm_allocator *pa_gppsm_seg_tab[CMM_MAXGPPSEGS];
+};
+
+/* Default CMM Mgr attributes */
+static struct cmm_mgrattrs cmm_dfltmgrattrs = {
+ /* ul_min_block_size, min block size(bytes) allocated by cmm mgr */
+ 16
+};
+
+/* Default allocation attributes */
+static struct cmm_attrs cmm_dfltalctattrs = {
+ 1 /* ul_seg_id, default segment Id for allocator */
+};
+
+/* Address translator default attrs */
+static struct cmm_xlatorattrs cmm_dfltxlatorattrs = {
+ /* ul_seg_id, does not have to match cmm_dfltalctattrs ul_seg_id */
+ 1,
+ 0, /* dw_dsp_bufs */
+ 0, /* dw_dsp_buf_size */
+ NULL, /* vm_base */
+ 0, /* dw_vm_size */
+};
+
+/* SM node representing a block of memory. */
+struct cmm_mnode {
+ struct list_head link; /* must be 1st element */
+ u32 dw_pa; /* Phys addr */
+ u32 dw_va; /* Virtual address in device process context */
+ u32 ul_size; /* SM block size in bytes */
+ u32 client_proc; /* Process that allocated this mem block */
+};
+
+/* ----------------------------------- Globals */
+static u32 refs; /* module reference count */
+
+/* ----------------------------------- Function Prototypes */
+static void add_to_free_list(struct cmm_allocator *allocator,
+ struct cmm_mnode *pnode);
+static struct cmm_allocator *get_allocator(struct cmm_object *cmm_mgr_obj,
+ u32 ul_seg_id);
+static struct cmm_mnode *get_free_block(struct cmm_allocator *allocator,
+ u32 usize);
+static struct cmm_mnode *get_node(struct cmm_object *cmm_mgr_obj, u32 dw_pa,
+ u32 dw_va, u32 ul_size);
+/* get available slot for new allocator */
+static s32 get_slot(struct cmm_object *hcmm_mgr);
+static void un_register_gppsm_seg(struct cmm_allocator *psma);
+
+/*
+ * ======== cmm_calloc_buf ========
+ * Purpose:
+ * Allocate a SM buffer, zero contents, and return the physical address
+ * and optional driver context virtual address(pp_buf_va).
+ *
+ * The freelist is sorted in increasing size order. Get the first
+ * block that satifies the request and sort the remaining back on
+ * the freelist; if large enough. The kept block is placed on the
+ * inUseList.
+ */
+void *cmm_calloc_buf(struct cmm_object *hcmm_mgr, u32 usize,
+ struct cmm_attrs *pattrs, OUT void **pp_buf_va)
+{
+ struct cmm_object *cmm_mgr_obj = (struct cmm_object *)hcmm_mgr;
+ void *buf_pa = NULL;
+ struct cmm_mnode *pnode = NULL;
+ struct cmm_mnode *new_node = NULL;
+ struct cmm_allocator *allocator = NULL;
+ u32 delta_size;
+ u8 *pbyte = NULL;
+ s32 cnt;
+
+ if (pattrs == NULL)
+ pattrs = &cmm_dfltalctattrs;
+
+ if (pp_buf_va != NULL)
+ *pp_buf_va = NULL;
+
+ if (cmm_mgr_obj && (usize != 0)) {
+ if (pattrs->ul_seg_id > 0) {
+ /* SegId > 0 is SM */
+ /* get the allocator object for this segment id */
+ allocator =
+ get_allocator(cmm_mgr_obj, pattrs->ul_seg_id);
+ /* keep block size a multiple of ul_min_block_size */
+ usize =
+ ((usize - 1) & ~(cmm_mgr_obj->ul_min_block_size -
+ 1))
+ + cmm_mgr_obj->ul_min_block_size;
+ mutex_lock(&cmm_mgr_obj->cmm_lock);
+ pnode = get_free_block(allocator, usize);
+ }
+ if (pnode) {
+ delta_size = (pnode->ul_size - usize);
+ if (delta_size >= cmm_mgr_obj->ul_min_block_size) {
+ /* create a new block with the leftovers and
+ * add to freelist */
+ new_node =
+ get_node(cmm_mgr_obj, pnode->dw_pa + usize,
+ pnode->dw_va + usize,
+ (u32) delta_size);
+ /* leftovers go free */
+ add_to_free_list(allocator, new_node);
+ /* adjust our node's size */
+ pnode->ul_size = usize;
+ }
+ /* Tag node with client process requesting allocation
+ * We'll need to free up a process's alloc'd SM if the
+ * client process goes away.
+ */
+ /* Return TGID instead of process handle */
+ pnode->client_proc = current->tgid;
+
+ /* put our node on InUse list */
+ lst_put_tail(allocator->in_use_list_head,
+ (struct list_head *)pnode);
+ buf_pa = (void *)pnode->dw_pa; /* physical address */
+ /* clear mem */
+ pbyte = (u8 *) pnode->dw_va;
+ for (cnt = 0; cnt < (s32) usize; cnt++, pbyte++)
+ *pbyte = 0;
+
+ if (pp_buf_va != NULL) {
+ /* Virtual address */
+ *pp_buf_va = (void *)pnode->dw_va;
+ }
+ }
+ mutex_unlock(&cmm_mgr_obj->cmm_lock);
+ }
+ return buf_pa;
+}
+
+/*
+ * ======== cmm_create ========
+ * Purpose:
+ * Create a communication memory manager object.
+ */
+int cmm_create(OUT struct cmm_object **ph_cmm_mgr,
+ struct dev_object *hdev_obj,
+ IN CONST struct cmm_mgrattrs *pMgrAttrs)
+{
+ struct cmm_object *cmm_obj = NULL;
+ int status = 0;
+ struct util_sysinfo sys_info;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(ph_cmm_mgr != NULL);
+
+ *ph_cmm_mgr = NULL;
+ /* create, zero, and tag a cmm mgr object */
+ cmm_obj = kzalloc(sizeof(struct cmm_object), GFP_KERNEL);
+ if (cmm_obj != NULL) {
+ if (pMgrAttrs == NULL)
+ pMgrAttrs = &cmm_dfltmgrattrs; /* set defaults */
+
+ /* 4 bytes minimum */
+ DBC_ASSERT(pMgrAttrs->ul_min_block_size >= 4);
+ /* save away smallest block allocation for this cmm mgr */
+ cmm_obj->ul_min_block_size = pMgrAttrs->ul_min_block_size;
+ /* save away the systems memory page size */
+ sys_info.dw_page_size = PAGE_SIZE;
+ sys_info.dw_allocation_granularity = PAGE_SIZE;
+ sys_info.dw_number_of_processors = 1;
+ if (DSP_SUCCEEDED(status)) {
+ cmm_obj->dw_page_size = sys_info.dw_page_size;
+ } else {
+ cmm_obj->dw_page_size = 0;
+ status = -EPERM;
+ }
+ /* Note: DSP SM seg table(aDSPSMSegTab[]) zero'd by
+ * MEM_ALLOC_OBJECT */
+ if (DSP_SUCCEEDED(status)) {
+ /* create node free list */
+ cmm_obj->node_free_list_head =
+ kzalloc(sizeof(struct lst_list),
+ GFP_KERNEL);
+ if (cmm_obj->node_free_list_head == NULL)
+ status = -ENOMEM;
+ else
+ INIT_LIST_HEAD(&cmm_obj->
+ node_free_list_head->head);
+ }
+ if (DSP_SUCCEEDED(status))
+ mutex_init(&cmm_obj->cmm_lock);
+
+ if (DSP_SUCCEEDED(status))
+ *ph_cmm_mgr = cmm_obj;
+ else
+ cmm_destroy(cmm_obj, true);
+
+ } else {
+ status = -ENOMEM;
+ }
+ return status;
+}
+
+/*
+ * ======== cmm_destroy ========
+ * Purpose:
+ * Release the communication memory manager resources.
+ */
+int cmm_destroy(struct cmm_object *hcmm_mgr, bool bForce)
+{
+ struct cmm_object *cmm_mgr_obj = (struct cmm_object *)hcmm_mgr;
+ struct cmm_info temp_info;
+ int status = 0;
+ s32 slot_seg;
+ struct cmm_mnode *pnode;
+
+ DBC_REQUIRE(refs > 0);
+ if (!hcmm_mgr) {
+ status = -EFAULT;
+ return status;
+ }
+ mutex_lock(&cmm_mgr_obj->cmm_lock);
+ /* If not force then fail if outstanding allocations exist */
+ if (!bForce) {
+ /* Check for outstanding memory allocations */
+ status = cmm_get_info(hcmm_mgr, &temp_info);
+ if (DSP_SUCCEEDED(status)) {
+ if (temp_info.ul_total_in_use_cnt > 0) {
+ /* outstanding allocations */
+ status = -EPERM;
+ }
+ }
+ }
+ if (DSP_SUCCEEDED(status)) {
+ /* UnRegister SM allocator */
+ for (slot_seg = 0; slot_seg < CMM_MAXGPPSEGS; slot_seg++) {
+ if (cmm_mgr_obj->pa_gppsm_seg_tab[slot_seg] != NULL) {
+ un_register_gppsm_seg
+ (cmm_mgr_obj->pa_gppsm_seg_tab[slot_seg]);
+ /* Set slot to NULL for future reuse */
+ cmm_mgr_obj->pa_gppsm_seg_tab[slot_seg] = NULL;
+ }
+ }
+ }
+ if (cmm_mgr_obj->node_free_list_head != NULL) {
+ /* Free the free nodes */
+ while (!LST_IS_EMPTY(cmm_mgr_obj->node_free_list_head)) {
+ pnode = (struct cmm_mnode *)
+ lst_get_head(cmm_mgr_obj->node_free_list_head);
+ kfree(pnode);
+ }
+ /* delete NodeFreeList list */
+ kfree(cmm_mgr_obj->node_free_list_head);
+ }
+ mutex_unlock(&cmm_mgr_obj->cmm_lock);
+ if (DSP_SUCCEEDED(status)) {
+ /* delete CS & cmm mgr object */
+ mutex_destroy(&cmm_mgr_obj->cmm_lock);
+ kfree(cmm_mgr_obj);
+ }
+ return status;
+}
+
+/*
+ * ======== cmm_exit ========
+ * Purpose:
+ * Discontinue usage of module; free resources when reference count
+ * reaches 0.
+ */
+void cmm_exit(void)
+{
+ DBC_REQUIRE(refs > 0);
+
+ refs--;
+}
+
+/*
+ * ======== cmm_free_buf ========
+ * Purpose:
+ * Free the given buffer.
+ */
+int cmm_free_buf(struct cmm_object *hcmm_mgr, void *buf_pa,
+ u32 ul_seg_id)
+{
+ struct cmm_object *cmm_mgr_obj = (struct cmm_object *)hcmm_mgr;
+ int status = -EFAULT;
+ struct cmm_mnode *mnode_obj = NULL;
+ struct cmm_allocator *allocator = NULL;
+ struct cmm_attrs *pattrs;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(buf_pa != NULL);
+
+ if (ul_seg_id == 0) {
+ pattrs = &cmm_dfltalctattrs;
+ ul_seg_id = pattrs->ul_seg_id;
+ }
+ if (!hcmm_mgr || !(ul_seg_id > 0)) {
+ status = -EFAULT;
+ return status;
+ }
+ /* get the allocator for this segment id */
+ allocator = get_allocator(cmm_mgr_obj, ul_seg_id);
+ if (allocator != NULL) {
+ mutex_lock(&cmm_mgr_obj->cmm_lock);
+ mnode_obj =
+ (struct cmm_mnode *)lst_first(allocator->in_use_list_head);
+ while (mnode_obj) {
+ if ((u32) buf_pa == mnode_obj->dw_pa) {
+ /* Found it */
+ lst_remove_elem(allocator->in_use_list_head,
+ (struct list_head *)mnode_obj);
+ /* back to freelist */
+ add_to_free_list(allocator, mnode_obj);
+ status = 0; /* all right! */
+ break;
+ }
+ /* next node. */
+ mnode_obj = (struct cmm_mnode *)
+ lst_next(allocator->in_use_list_head,
+ (struct list_head *)mnode_obj);
+ }
+ mutex_unlock(&cmm_mgr_obj->cmm_lock);
+ }
+ return status;
+}
+
+/*
+ * ======== cmm_get_handle ========
+ * Purpose:
+ * Return the communication memory manager object for this device.
+ * This is typically called from the client process.
+ */
+int cmm_get_handle(void *hprocessor, OUT struct cmm_object ** ph_cmm_mgr)
+{
+ int status = 0;
+ struct dev_object *hdev_obj;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(ph_cmm_mgr != NULL);
+ if (hprocessor != NULL)
+ status = proc_get_dev_object(hprocessor, &hdev_obj);
+ else
+ hdev_obj = dev_get_first(); /* default */
+
+ if (DSP_SUCCEEDED(status))
+ status = dev_get_cmm_mgr(hdev_obj, ph_cmm_mgr);
+
+ return status;
+}
+
+/*
+ * ======== cmm_get_info ========
+ * Purpose:
+ * Return the current memory utilization information.
+ */
+int cmm_get_info(struct cmm_object *hcmm_mgr,
+ OUT struct cmm_info *cmm_info_obj)
+{
+ struct cmm_object *cmm_mgr_obj = (struct cmm_object *)hcmm_mgr;
+ u32 ul_seg;
+ int status = 0;
+ struct cmm_allocator *altr;
+ struct cmm_mnode *mnode_obj = NULL;
+
+ DBC_REQUIRE(cmm_info_obj != NULL);
+
+ if (!hcmm_mgr) {
+ status = -EFAULT;
+ return status;
+ }
+ mutex_lock(&cmm_mgr_obj->cmm_lock);
+ cmm_info_obj->ul_num_gppsm_segs = 0; /* # of SM segments */
+ /* Total # of outstanding alloc */
+ cmm_info_obj->ul_total_in_use_cnt = 0;
+ /* min block size */
+ cmm_info_obj->ul_min_block_size = cmm_mgr_obj->ul_min_block_size;
+ /* check SM memory segments */
+ for (ul_seg = 1; ul_seg <= CMM_MAXGPPSEGS; ul_seg++) {
+ /* get the allocator object for this segment id */
+ altr = get_allocator(cmm_mgr_obj, ul_seg);
+ if (altr != NULL) {
+ cmm_info_obj->ul_num_gppsm_segs++;
+ cmm_info_obj->seg_info[ul_seg - 1].dw_seg_base_pa =
+ altr->shm_base - altr->ul_dsp_size;
+ cmm_info_obj->seg_info[ul_seg - 1].ul_total_seg_size =
+ altr->ul_dsp_size + altr->ul_sm_size;
+ cmm_info_obj->seg_info[ul_seg - 1].dw_gpp_base_pa =
+ altr->shm_base;
+ cmm_info_obj->seg_info[ul_seg - 1].ul_gpp_size =
+ altr->ul_sm_size;
+ cmm_info_obj->seg_info[ul_seg - 1].dw_dsp_base_va =
+ altr->dw_dsp_base;
+ cmm_info_obj->seg_info[ul_seg - 1].ul_dsp_size =
+ altr->ul_dsp_size;
+ cmm_info_obj->seg_info[ul_seg - 1].dw_seg_base_va =
+ altr->dw_vm_base - altr->ul_dsp_size;
+ cmm_info_obj->seg_info[ul_seg - 1].ul_in_use_cnt = 0;
+ mnode_obj = (struct cmm_mnode *)
+ lst_first(altr->in_use_list_head);
+ /* Count inUse blocks */
+ while (mnode_obj) {
+ cmm_info_obj->ul_total_in_use_cnt++;
+ cmm_info_obj->seg_info[ul_seg -
+ 1].ul_in_use_cnt++;
+ /* next node. */
+ mnode_obj = (struct cmm_mnode *)
+ lst_next(altr->in_use_list_head,
+ (struct list_head *)mnode_obj);
+ }
+ }
+ } /* end for */
+ mutex_unlock(&cmm_mgr_obj->cmm_lock);
+ return status;
+}
+
+/*
+ * ======== cmm_init ========
+ * Purpose:
+ * Initializes private state of CMM module.
+ */
+bool cmm_init(void)
+{
+ bool ret = true;
+
+ DBC_REQUIRE(refs >= 0);
+ if (ret)
+ refs++;
+
+ DBC_ENSURE((ret && (refs > 0)) || (!ret && (refs >= 0)));
+
+ return ret;
+}
+
+/*
+ * ======== cmm_register_gppsm_seg ========
+ * Purpose:
+ * Register a block of SM with the CMM to be used for later GPP SM
+ * allocations.
+ */
+int cmm_register_gppsm_seg(struct cmm_object *hcmm_mgr,
+ u32 dw_gpp_base_pa, u32 ul_size,
+ u32 dwDSPAddrOffset, s8 c_factor,
+ u32 dw_dsp_base, u32 ul_dsp_size,
+ u32 *pulSegId, u32 dw_gpp_base_va)
+{
+ struct cmm_object *cmm_mgr_obj = (struct cmm_object *)hcmm_mgr;
+ struct cmm_allocator *psma = NULL;
+ int status = 0;
+ struct cmm_mnode *new_node;
+ s32 slot_seg;
+
+ DBC_REQUIRE(ul_size > 0);
+ DBC_REQUIRE(pulSegId != NULL);
+ DBC_REQUIRE(dw_gpp_base_pa != 0);
+ DBC_REQUIRE(dw_gpp_base_va != 0);
+ DBC_REQUIRE((c_factor <= CMM_ADDTODSPPA) &&
+ (c_factor >= CMM_SUBFROMDSPPA));
+ dev_dbg(bridge, "%s: dw_gpp_base_pa %x ul_size %x dwDSPAddrOffset %x "
+ "dw_dsp_base %x ul_dsp_size %x dw_gpp_base_va %x\n", __func__,
+ dw_gpp_base_pa, ul_size, dwDSPAddrOffset, dw_dsp_base,
+ ul_dsp_size, dw_gpp_base_va);
+ if (!hcmm_mgr) {
+ status = -EFAULT;
+ return status;
+ }
+ /* make sure we have room for another allocator */
+ mutex_lock(&cmm_mgr_obj->cmm_lock);
+ slot_seg = get_slot(cmm_mgr_obj);
+ if (slot_seg < 0) {
+ /* get a slot number */
+ status = -EPERM;
+ goto func_end;
+ }
+ /* Check if input ul_size is big enough to alloc at least one block */
+ if (DSP_SUCCEEDED(status)) {
+ if (ul_size < cmm_mgr_obj->ul_min_block_size) {
+ status = -EINVAL;
+ goto func_end;
+ }
+ }
+ if (DSP_SUCCEEDED(status)) {
+ /* create, zero, and tag an SM allocator object */
+ psma = kzalloc(sizeof(struct cmm_allocator), GFP_KERNEL);
+ }
+ if (psma != NULL) {
+ psma->hcmm_mgr = hcmm_mgr; /* ref to parent */
+ psma->shm_base = dw_gpp_base_pa; /* SM Base phys */
+ psma->ul_sm_size = ul_size; /* SM segment size in bytes */
+ psma->dw_vm_base = dw_gpp_base_va;
+ psma->dw_dsp_phys_addr_offset = dwDSPAddrOffset;
+ psma->c_factor = c_factor;
+ psma->dw_dsp_base = dw_dsp_base;
+ psma->ul_dsp_size = ul_dsp_size;
+ if (psma->dw_vm_base == 0) {
+ status = -EPERM;
+ goto func_end;
+ }
+ if (DSP_SUCCEEDED(status)) {
+ /* return the actual segment identifier */
+ *pulSegId = (u32) slot_seg + 1;
+ /* create memory free list */
+ psma->free_list_head = kzalloc(sizeof(struct lst_list),
+ GFP_KERNEL);
+ if (psma->free_list_head == NULL) {
+ status = -ENOMEM;
+ goto func_end;
+ }
+ INIT_LIST_HEAD(&psma->free_list_head->head);
+ }
+ if (DSP_SUCCEEDED(status)) {
+ /* create memory in-use list */
+ psma->in_use_list_head = kzalloc(sizeof(struct
+ lst_list), GFP_KERNEL);
+ if (psma->in_use_list_head == NULL) {
+ status = -ENOMEM;
+ goto func_end;
+ }
+ INIT_LIST_HEAD(&psma->in_use_list_head->head);
+ }
+ if (DSP_SUCCEEDED(status)) {
+ /* Get a mem node for this hunk-o-memory */
+ new_node = get_node(cmm_mgr_obj, dw_gpp_base_pa,
+ psma->dw_vm_base, ul_size);
+ /* Place node on the SM allocator's free list */
+ if (new_node) {
+ lst_put_tail(psma->free_list_head,
+ (struct list_head *)new_node);
+ } else {
+ status = -ENOMEM;
+ goto func_end;
+ }
+ }
+ if (DSP_FAILED(status)) {
+ /* Cleanup allocator */
+ un_register_gppsm_seg(psma);
+ }
+ } else {
+ status = -ENOMEM;
+ goto func_end;
+ }
+ /* make entry */
+ if (DSP_SUCCEEDED(status))
+ cmm_mgr_obj->pa_gppsm_seg_tab[slot_seg] = psma;
+
+func_end:
+ mutex_unlock(&cmm_mgr_obj->cmm_lock);
+ return status;
+}
+
+/*
+ * ======== cmm_un_register_gppsm_seg ========
+ * Purpose:
+ * UnRegister GPP SM segments with the CMM.
+ */
+int cmm_un_register_gppsm_seg(struct cmm_object *hcmm_mgr,
+ u32 ul_seg_id)
+{
+ struct cmm_object *cmm_mgr_obj = (struct cmm_object *)hcmm_mgr;
+ int status = 0;
+ struct cmm_allocator *psma;
+ u32 ul_id = ul_seg_id;
+
+ DBC_REQUIRE(ul_seg_id > 0);
+ if (hcmm_mgr) {
+ if (ul_seg_id == CMM_ALLSEGMENTS)
+ ul_id = 1;
+
+ if ((ul_id > 0) && (ul_id <= CMM_MAXGPPSEGS)) {
+ while (ul_id <= CMM_MAXGPPSEGS) {
+ mutex_lock(&cmm_mgr_obj->cmm_lock);
+ /* slot = seg_id-1 */
+ psma = cmm_mgr_obj->pa_gppsm_seg_tab[ul_id - 1];
+ if (psma != NULL) {
+ un_register_gppsm_seg(psma);
+ /* Set alctr ptr to NULL for future
+ * reuse */
+ cmm_mgr_obj->pa_gppsm_seg_tab[ul_id -
+ 1] = NULL;
+ } else if (ul_seg_id != CMM_ALLSEGMENTS) {
+ status = -EPERM;
+ }
+ mutex_unlock(&cmm_mgr_obj->cmm_lock);
+ if (ul_seg_id != CMM_ALLSEGMENTS)
+ break;
+
+ ul_id++;
+ } /* end while */
+ } else {
+ status = -EINVAL;
+ }
+ } else {
+ status = -EFAULT;
+ }
+ return status;
+}
+
+/*
+ * ======== un_register_gppsm_seg ========
+ * Purpose:
+ * UnRegister the SM allocator by freeing all its resources and
+ * nulling cmm mgr table entry.
+ * Note:
+ * This routine is always called within cmm lock crit sect.
+ */
+static void un_register_gppsm_seg(struct cmm_allocator *psma)
+{
+ struct cmm_mnode *mnode_obj = NULL;
+ struct cmm_mnode *next_node = NULL;
+
+ DBC_REQUIRE(psma != NULL);
+ if (psma->free_list_head != NULL) {
+ /* free nodes on free list */
+ mnode_obj = (struct cmm_mnode *)lst_first(psma->free_list_head);
+ while (mnode_obj) {
+ next_node =
+ (struct cmm_mnode *)lst_next(psma->free_list_head,
+ (struct list_head *)
+ mnode_obj);
+ lst_remove_elem(psma->free_list_head,
+ (struct list_head *)mnode_obj);
+ kfree((void *)mnode_obj);
+ /* next node. */
+ mnode_obj = next_node;
+ }
+ kfree(psma->free_list_head); /* delete freelist */
+ /* free nodes on InUse list */
+ mnode_obj =
+ (struct cmm_mnode *)lst_first(psma->in_use_list_head);
+ while (mnode_obj) {
+ next_node =
+ (struct cmm_mnode *)lst_next(psma->in_use_list_head,
+ (struct list_head *)
+ mnode_obj);
+ lst_remove_elem(psma->in_use_list_head,
+ (struct list_head *)mnode_obj);
+ kfree((void *)mnode_obj);
+ /* next node. */
+ mnode_obj = next_node;
+ }
+ kfree(psma->in_use_list_head); /* delete InUse list */
+ }
+ if ((void *)psma->dw_vm_base != NULL)
+ MEM_UNMAP_LINEAR_ADDRESS((void *)psma->dw_vm_base);
+
+ /* Free allocator itself */
+ kfree(psma);
+}
+
+/*
+ * ======== get_slot ========
+ * Purpose:
+ * An available slot # is returned. Returns negative on failure.
+ */
+static s32 get_slot(struct cmm_object *cmm_mgr_obj)
+{
+ s32 slot_seg = -1; /* neg on failure */
+ DBC_REQUIRE(cmm_mgr_obj != NULL);
+ /* get first available slot in cmm mgr SMSegTab[] */
+ for (slot_seg = 0; slot_seg < CMM_MAXGPPSEGS; slot_seg++) {
+ if (cmm_mgr_obj->pa_gppsm_seg_tab[slot_seg] == NULL)
+ break;
+
+ }
+ if (slot_seg == CMM_MAXGPPSEGS)
+ slot_seg = -1; /* failed */
+
+ return slot_seg;
+}
+
+/*
+ * ======== get_node ========
+ * Purpose:
+ * Get a memory node from freelist or create a new one.
+ */
+static struct cmm_mnode *get_node(struct cmm_object *cmm_mgr_obj, u32 dw_pa,
+ u32 dw_va, u32 ul_size)
+{
+ struct cmm_mnode *pnode = NULL;
+
+ DBC_REQUIRE(cmm_mgr_obj != NULL);
+ DBC_REQUIRE(dw_pa != 0);
+ DBC_REQUIRE(dw_va != 0);
+ DBC_REQUIRE(ul_size != 0);
+ /* Check cmm mgr's node freelist */
+ if (LST_IS_EMPTY(cmm_mgr_obj->node_free_list_head)) {
+ pnode = kzalloc(sizeof(struct cmm_mnode), GFP_KERNEL);
+ } else {
+ /* surely a valid element */
+ pnode = (struct cmm_mnode *)
+ lst_get_head(cmm_mgr_obj->node_free_list_head);
+ }
+ if (pnode) {
+ lst_init_elem((struct list_head *)pnode); /* set self */
+ pnode->dw_pa = dw_pa; /* Physical addr of start of block */
+ pnode->dw_va = dw_va; /* Virtual " " */
+ pnode->ul_size = ul_size; /* Size of block */
+ }
+ return pnode;
+}
+
+/*
+ * ======== delete_node ========
+ * Purpose:
+ * Put a memory node on the cmm nodelist for later use.
+ * Doesn't actually delete the node. Heap thrashing friendly.
+ */
+static void delete_node(struct cmm_object *cmm_mgr_obj, struct cmm_mnode *pnode)
+{
+ DBC_REQUIRE(pnode != NULL);
+ lst_init_elem((struct list_head *)pnode); /* init .self ptr */
+ lst_put_tail(cmm_mgr_obj->node_free_list_head,
+ (struct list_head *)pnode);
+}
+
+/*
+ * ====== get_free_block ========
+ * Purpose:
+ * Scan the free block list and return the first block that satisfies
+ * the size.
+ */
+static struct cmm_mnode *get_free_block(struct cmm_allocator *allocator,
+ u32 usize)
+{
+ if (allocator) {
+ struct cmm_mnode *mnode_obj = (struct cmm_mnode *)
+ lst_first(allocator->free_list_head);
+ while (mnode_obj) {
+ if (usize <= (u32) mnode_obj->ul_size) {
+ lst_remove_elem(allocator->free_list_head,
+ (struct list_head *)mnode_obj);
+ return mnode_obj;
+ }
+ /* next node. */
+ mnode_obj = (struct cmm_mnode *)
+ lst_next(allocator->free_list_head,
+ (struct list_head *)mnode_obj);
+ }
+ }
+ return NULL;
+}
+
+/*
+ * ======== add_to_free_list ========
+ * Purpose:
+ * Coelesce node into the freelist in ascending size order.
+ */
+static void add_to_free_list(struct cmm_allocator *allocator,
+ struct cmm_mnode *pnode)
+{
+ struct cmm_mnode *node_prev = NULL;
+ struct cmm_mnode *node_next = NULL;
+ struct cmm_mnode *mnode_obj;
+ u32 dw_this_pa;
+ u32 dw_next_pa;
+
+ DBC_REQUIRE(pnode != NULL);
+ DBC_REQUIRE(allocator != NULL);
+ dw_this_pa = pnode->dw_pa;
+ dw_next_pa = NEXT_PA(pnode);
+ mnode_obj = (struct cmm_mnode *)lst_first(allocator->free_list_head);
+ while (mnode_obj) {
+ if (dw_this_pa == NEXT_PA(mnode_obj)) {
+ /* found the block ahead of this one */
+ node_prev = mnode_obj;
+ } else if (dw_next_pa == mnode_obj->dw_pa) {
+ node_next = mnode_obj;
+ }
+ if ((node_prev == NULL) || (node_next == NULL)) {
+ /* next node. */
+ mnode_obj = (struct cmm_mnode *)
+ lst_next(allocator->free_list_head,
+ (struct list_head *)mnode_obj);
+ } else {
+ /* got 'em */
+ break;
+ }
+ } /* while */
+ if (node_prev != NULL) {
+ /* combine with previous block */
+ lst_remove_elem(allocator->free_list_head,
+ (struct list_head *)node_prev);
+ /* grow node to hold both */
+ pnode->ul_size += node_prev->ul_size;
+ pnode->dw_pa = node_prev->dw_pa;
+ pnode->dw_va = node_prev->dw_va;
+ /* place node on mgr nodeFreeList */
+ delete_node((struct cmm_object *)allocator->hcmm_mgr,
+ node_prev);
+ }
+ if (node_next != NULL) {
+ /* combine with next block */
+ lst_remove_elem(allocator->free_list_head,
+ (struct list_head *)node_next);
+ /* grow da node */
+ pnode->ul_size += node_next->ul_size;
+ /* place node on mgr nodeFreeList */
+ delete_node((struct cmm_object *)allocator->hcmm_mgr,
+ node_next);
+ }
+ /* Now, let's add to freelist in increasing size order */
+ mnode_obj = (struct cmm_mnode *)lst_first(allocator->free_list_head);
+ while (mnode_obj) {
+ if (pnode->ul_size <= mnode_obj->ul_size)
+ break;
+
+ /* next node. */
+ mnode_obj =
+ (struct cmm_mnode *)lst_next(allocator->free_list_head,
+ (struct list_head *)mnode_obj);
+ }
+ /* if mnode_obj is NULL then add our pnode to the end of the freelist */
+ if (mnode_obj == NULL) {
+ lst_put_tail(allocator->free_list_head,
+ (struct list_head *)pnode);
+ } else {
+ /* insert our node before the current traversed node */
+ lst_insert_before(allocator->free_list_head,
+ (struct list_head *)pnode,
+ (struct list_head *)mnode_obj);
+ }
+}
+
+/*
+ * ======== get_allocator ========
+ * Purpose:
+ * Return the allocator for the given SM Segid.
+ * SegIds: 1,2,3..max.
+ */
+static struct cmm_allocator *get_allocator(struct cmm_object *cmm_mgr_obj,
+ u32 ul_seg_id)
+{
+ struct cmm_allocator *allocator = NULL;
+
+ DBC_REQUIRE(cmm_mgr_obj != NULL);
+ DBC_REQUIRE((ul_seg_id > 0) && (ul_seg_id <= CMM_MAXGPPSEGS));
+ allocator = cmm_mgr_obj->pa_gppsm_seg_tab[ul_seg_id - 1];
+ if (allocator != NULL) {
+ /* make sure it's for real */
+ if (!allocator) {
+ allocator = NULL;
+ DBC_ASSERT(false);
+ }
+ }
+ return allocator;
+}
+
+/*
+ * The CMM_Xlator[xxx] routines below are used by Node and Stream
+ * to perform SM address translation to the client process address space.
+ * A "translator" object is created by a node/stream for each SM seg used.
+ */
+
+/*
+ * ======== cmm_xlator_create ========
+ * Purpose:
+ * Create an address translator object.
+ */
+int cmm_xlator_create(OUT struct cmm_xlatorobject **phXlator,
+ struct cmm_object *hcmm_mgr,
+ struct cmm_xlatorattrs *pXlatorAttrs)
+{
+ struct cmm_xlator *xlator_object = NULL;
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phXlator != NULL);
+ DBC_REQUIRE(hcmm_mgr != NULL);
+
+ *phXlator = NULL;
+ if (pXlatorAttrs == NULL)
+ pXlatorAttrs = &cmm_dfltxlatorattrs; /* set defaults */
+
+ xlator_object = kzalloc(sizeof(struct cmm_xlator), GFP_KERNEL);
+ if (xlator_object != NULL) {
+ xlator_object->hcmm_mgr = hcmm_mgr; /* ref back to CMM */
+ /* SM seg_id */
+ xlator_object->ul_seg_id = pXlatorAttrs->ul_seg_id;
+ } else {
+ status = -ENOMEM;
+ }
+ if (DSP_SUCCEEDED(status))
+ *phXlator = (struct cmm_xlatorobject *)xlator_object;
+
+ return status;
+}
+
+/*
+ * ======== cmm_xlator_delete ========
+ * Purpose:
+ * Free the Xlator resources.
+ * VM gets freed later.
+ */
+int cmm_xlator_delete(struct cmm_xlatorobject *xlator, bool bForce)
+{
+ struct cmm_xlator *xlator_obj = (struct cmm_xlator *)xlator;
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+
+ if (xlator_obj)
+ kfree(xlator_obj);
+ else
+ status = -EFAULT;
+
+ return status;
+}
+
+/*
+ * ======== cmm_xlator_alloc_buf ========
+ */
+void *cmm_xlator_alloc_buf(struct cmm_xlatorobject *xlator, void *pVaBuf,
+ u32 uPaSize)
+{
+ struct cmm_xlator *xlator_obj = (struct cmm_xlator *)xlator;
+ void *pbuf = NULL;
+ struct cmm_attrs attrs;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(xlator != NULL);
+ DBC_REQUIRE(xlator_obj->hcmm_mgr != NULL);
+ DBC_REQUIRE(pVaBuf != NULL);
+ DBC_REQUIRE(uPaSize > 0);
+ DBC_REQUIRE(xlator_obj->ul_seg_id > 0);
+
+ if (xlator_obj) {
+ attrs.ul_seg_id = xlator_obj->ul_seg_id;
+ *(volatile u32 *)pVaBuf = 0;
+ /* Alloc SM */
+ pbuf =
+ cmm_calloc_buf(xlator_obj->hcmm_mgr, uPaSize, &attrs, NULL);
+ if (pbuf) {
+ /* convert to translator(node/strm) process Virtual
+ * address */
+ *(volatile u32 **)pVaBuf =
+ (u32 *) cmm_xlator_translate(xlator,
+ pbuf, CMM_PA2VA);
+ }
+ }
+ return pbuf;
+}
+
+/*
+ * ======== cmm_xlator_free_buf ========
+ * Purpose:
+ * Free the given SM buffer and descriptor.
+ * Does not free virtual memory.
+ */
+int cmm_xlator_free_buf(struct cmm_xlatorobject *xlator, void *pBufVa)
+{
+ struct cmm_xlator *xlator_obj = (struct cmm_xlator *)xlator;
+ int status = -EPERM;
+ void *buf_pa = NULL;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(pBufVa != NULL);
+ DBC_REQUIRE(xlator_obj->ul_seg_id > 0);
+
+ if (xlator_obj) {
+ /* convert Va to Pa so we can free it. */
+ buf_pa = cmm_xlator_translate(xlator, pBufVa, CMM_VA2PA);
+ if (buf_pa) {
+ status = cmm_free_buf(xlator_obj->hcmm_mgr, buf_pa,
+ xlator_obj->ul_seg_id);
+ if (DSP_FAILED(status)) {
+ /* Uh oh, this shouldn't happen. Descriptor
+ * gone! */
+ DBC_ASSERT(false); /* CMM is leaking mem */
+ }
+ }
+ }
+ return status;
+}
+
+/*
+ * ======== cmm_xlator_info ========
+ * Purpose:
+ * Set/Get translator info.
+ */
+int cmm_xlator_info(struct cmm_xlatorobject *xlator, IN OUT u8 ** paddr,
+ u32 ul_size, u32 uSegId, bool set_info)
+{
+ struct cmm_xlator *xlator_obj = (struct cmm_xlator *)xlator;
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(paddr != NULL);
+ DBC_REQUIRE((uSegId > 0) && (uSegId <= CMM_MAXGPPSEGS));
+
+ if (xlator_obj) {
+ if (set_info) {
+ /* set translators virtual address range */
+ xlator_obj->dw_virt_base = (u32) *paddr;
+ xlator_obj->ul_virt_size = ul_size;
+ } else { /* return virt base address */
+ *paddr = (u8 *) xlator_obj->dw_virt_base;
+ }
+ } else {
+ status = -EFAULT;
+ }
+ return status;
+}
+
+/*
+ * ======== cmm_xlator_translate ========
+ */
+void *cmm_xlator_translate(struct cmm_xlatorobject *xlator, void *paddr,
+ enum cmm_xlatetype xType)
+{
+ u32 dw_addr_xlate = 0;
+ struct cmm_xlator *xlator_obj = (struct cmm_xlator *)xlator;
+ struct cmm_object *cmm_mgr_obj = NULL;
+ struct cmm_allocator *allocator = NULL;
+ u32 dw_offset = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(paddr != NULL);
+ DBC_REQUIRE((xType >= CMM_VA2PA) && (xType <= CMM_DSPPA2PA));
+
+ if (!xlator_obj)
+ goto loop_cont;
+
+ cmm_mgr_obj = (struct cmm_object *)xlator_obj->hcmm_mgr;
+ /* get this translator's default SM allocator */
+ DBC_ASSERT(xlator_obj->ul_seg_id > 0);
+ allocator = cmm_mgr_obj->pa_gppsm_seg_tab[xlator_obj->ul_seg_id - 1];
+ if (!allocator)
+ goto loop_cont;
+
+ if ((xType == CMM_VA2DSPPA) || (xType == CMM_VA2PA) ||
+ (xType == CMM_PA2VA)) {
+ if (xType == CMM_PA2VA) {
+ /* Gpp Va = Va Base + offset */
+ dw_offset = (u8 *) paddr - (u8 *) (allocator->shm_base -
+ allocator->
+ ul_dsp_size);
+ dw_addr_xlate = xlator_obj->dw_virt_base + dw_offset;
+ /* Check if translated Va base is in range */
+ if ((dw_addr_xlate < xlator_obj->dw_virt_base) ||
+ (dw_addr_xlate >=
+ (xlator_obj->dw_virt_base +
+ xlator_obj->ul_virt_size))) {
+ dw_addr_xlate = 0; /* bad address */
+ }
+ } else {
+ /* Gpp PA = Gpp Base + offset */
+ dw_offset =
+ (u8 *) paddr - (u8 *) xlator_obj->dw_virt_base;
+ dw_addr_xlate =
+ allocator->shm_base - allocator->ul_dsp_size +
+ dw_offset;
+ }
+ } else {
+ dw_addr_xlate = (u32) paddr;
+ }
+ /*Now convert address to proper target physical address if needed */
+ if ((xType == CMM_VA2DSPPA) || (xType == CMM_PA2DSPPA)) {
+ /* Got Gpp Pa now, convert to DSP Pa */
+ dw_addr_xlate =
+ GPPPA2DSPPA((allocator->shm_base - allocator->ul_dsp_size),
+ dw_addr_xlate,
+ allocator->dw_dsp_phys_addr_offset *
+ allocator->c_factor);
+ } else if (xType == CMM_DSPPA2PA) {
+ /* Got DSP Pa, convert to GPP Pa */
+ dw_addr_xlate =
+ DSPPA2GPPPA(allocator->shm_base - allocator->ul_dsp_size,
+ dw_addr_xlate,
+ allocator->dw_dsp_phys_addr_offset *
+ allocator->c_factor);
+ }
+loop_cont:
+ return (void *)dw_addr_xlate;
+}
--- /dev/null
+/*
+ * cod.c
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * This module implements DSP code management for the DSP/BIOS Bridge
+ * environment. It is mostly a thin wrapper.
+ *
+ * This module provides an interface for loading both static and
+ * dynamic code objects onto DSP systems.
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/* ----------------------------------- Host OS */
+#include <dspbridge/host_os.h>
+#include <linux/fs.h>
+#include <linux/uaccess.h>
+
+/* ----------------------------------- DSP/BIOS Bridge */
+#include <dspbridge/std.h>
+#include <dspbridge/dbdefs.h>
+
+/* ----------------------------------- Trace & Debug */
+#include <dspbridge/dbc.h>
+
+/* ----------------------------------- OS Adaptation Layer */
+#include <dspbridge/ldr.h>
+
+/* ----------------------------------- Platform Manager */
+/* Include appropriate loader header file */
+#include <dspbridge/dbll.h>
+
+/* ----------------------------------- This */
+#include <dspbridge/cod.h>
+
+/* magic number for handle validation */
+#define MAGIC 0xc001beef
+
+/* macro to validate COD manager handles */
+#define IS_VALID(h) ((h) != NULL && (h)->ul_magic == MAGIC)
+
+/*
+ * ======== cod_manager ========
+ */
+struct cod_manager {
+ struct dbll_tar_obj *target;
+ struct dbll_library_obj *base_lib;
+ bool loaded; /* Base library loaded? */
+ u32 ul_entry;
+ struct ldr_module *dll_obj;
+ struct dbll_fxns fxns;
+ struct dbll_attrs attrs;
+ char sz_zl_file[COD_MAXPATHLENGTH];
+ u32 ul_magic;
+};
+
+/*
+ * ======== cod_libraryobj ========
+ */
+struct cod_libraryobj {
+ struct dbll_library_obj *dbll_lib;
+ struct cod_manager *cod_mgr;
+};
+
+static u32 refs = 0L;
+
+static struct dbll_fxns ldr_fxns = {
+ (dbll_close_fxn) dbll_close,
+ (dbll_create_fxn) dbll_create,
+ (dbll_delete_fxn) dbll_delete,
+ (dbll_exit_fxn) dbll_exit,
+ (dbll_get_attrs_fxn) dbll_get_attrs,
+ (dbll_get_addr_fxn) dbll_get_addr,
+ (dbll_get_c_addr_fxn) dbll_get_c_addr,
+ (dbll_get_sect_fxn) dbll_get_sect,
+ (dbll_init_fxn) dbll_init,
+ (dbll_load_fxn) dbll_load,
+ (dbll_load_sect_fxn) dbll_load_sect,
+ (dbll_open_fxn) dbll_open,
+ (dbll_read_sect_fxn) dbll_read_sect,
+ (dbll_set_attrs_fxn) dbll_set_attrs,
+ (dbll_unload_fxn) dbll_unload,
+ (dbll_unload_sect_fxn) dbll_unload_sect,
+};
+
+static bool no_op(void);
+
+/*
+ * File operations (originally were under kfile.c)
+ */
+static s32 cod_f_close(struct file *filp)
+{
+ /* Check for valid handle */
+ if (!filp)
+ return -EFAULT;
+
+ filp_close(filp, NULL);
+
+ /* we can't use 0 here */
+ return 0;
+}
+
+static struct file *cod_f_open(CONST char *psz_file_name, CONST char *pszMode)
+{
+ mm_segment_t fs;
+ struct file *filp;
+
+ fs = get_fs();
+ set_fs(get_ds());
+
+ /* ignore given mode and open file as read-only */
+ filp = filp_open(psz_file_name, O_RDONLY, 0);
+
+ if (IS_ERR(filp))
+ filp = NULL;
+
+ set_fs(fs);
+
+ return filp;
+}
+
+static s32 cod_f_read(void __user *pbuffer, s32 size, s32 cCount,
+ struct file *filp)
+{
+ /* check for valid file handle */
+ if (!filp)
+ return -EFAULT;
+
+ if ((size > 0) && (cCount > 0) && pbuffer) {
+ u32 dw_bytes_read;
+ mm_segment_t fs;
+
+ /* read from file */
+ fs = get_fs();
+ set_fs(get_ds());
+ dw_bytes_read = filp->f_op->read(filp, pbuffer, size * cCount,
+ &(filp->f_pos));
+ set_fs(fs);
+
+ if (!dw_bytes_read)
+ return -EBADF;
+
+ return dw_bytes_read / size;
+ }
+
+ return -EINVAL;
+}
+
+static s32 cod_f_seek(struct file *filp, s32 lOffset, s32 cOrigin)
+{
+ loff_t dw_cur_pos;
+
+ /* check for valid file handle */
+ if (!filp)
+ return -EFAULT;
+
+ /* based on the origin flag, move the internal pointer */
+ dw_cur_pos = filp->f_op->llseek(filp, lOffset, cOrigin);
+
+ if ((s32) dw_cur_pos < 0)
+ return -EPERM;
+
+ /* we can't use 0 here */
+ return 0;
+}
+
+static s32 cod_f_tell(struct file *filp)
+{
+ loff_t dw_cur_pos;
+
+ if (!filp)
+ return -EFAULT;
+
+ /* Get current position */
+ dw_cur_pos = filp->f_op->llseek(filp, 0, SEEK_CUR);
+
+ if ((s32) dw_cur_pos < 0)
+ return -EPERM;
+
+ return dw_cur_pos;
+}
+
+/*
+ * ======== cod_close ========
+ */
+void cod_close(struct cod_libraryobj *lib)
+{
+ struct cod_manager *hmgr;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(lib != NULL);
+ DBC_REQUIRE(IS_VALID(((struct cod_libraryobj *)lib)->cod_mgr));
+
+ hmgr = lib->cod_mgr;
+ hmgr->fxns.close_fxn(lib->dbll_lib);
+
+ kfree(lib);
+}
+
+/*
+ * ======== cod_create ========
+ * Purpose:
+ * Create an object to manage code on a DSP system.
+ * This object can be used to load an initial program image with
+ * arguments that can later be expanded with
+ * dynamically loaded object files.
+ *
+ */
+int cod_create(OUT struct cod_manager **phMgr, char *pstrDummyFile,
+ IN OPTIONAL CONST struct cod_attrs *attrs)
+{
+ struct cod_manager *mgr_new;
+ struct dbll_attrs zl_attrs;
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phMgr != NULL);
+
+ /* assume failure */
+ *phMgr = NULL;
+
+ /* we don't support non-default attrs yet */
+ if (attrs != NULL)
+ return -ENOSYS;
+
+ mgr_new = kzalloc(sizeof(struct cod_manager), GFP_KERNEL);
+ if (mgr_new == NULL)
+ return -ENOMEM;
+
+ mgr_new->ul_magic = MAGIC;
+
+ /* Set up loader functions */
+ mgr_new->fxns = ldr_fxns;
+
+ /* initialize the ZL module */
+ mgr_new->fxns.init_fxn();
+
+ zl_attrs.alloc = (dbll_alloc_fxn) no_op;
+ zl_attrs.free = (dbll_free_fxn) no_op;
+ zl_attrs.fread = (dbll_read_fxn) cod_f_read;
+ zl_attrs.fseek = (dbll_seek_fxn) cod_f_seek;
+ zl_attrs.ftell = (dbll_tell_fxn) cod_f_tell;
+ zl_attrs.fclose = (dbll_f_close_fxn) cod_f_close;
+ zl_attrs.fopen = (dbll_f_open_fxn) cod_f_open;
+ zl_attrs.sym_lookup = NULL;
+ zl_attrs.base_image = true;
+ zl_attrs.log_write = NULL;
+ zl_attrs.log_write_handle = NULL;
+ zl_attrs.write = NULL;
+ zl_attrs.rmm_handle = NULL;
+ zl_attrs.input_params = NULL;
+ zl_attrs.sym_handle = NULL;
+ zl_attrs.sym_arg = NULL;
+
+ mgr_new->attrs = zl_attrs;
+
+ status = mgr_new->fxns.create_fxn(&mgr_new->target, &zl_attrs);
+
+ if (DSP_FAILED(status)) {
+ cod_delete(mgr_new);
+ return -ESPIPE;
+ }
+
+ /* return the new manager */
+ *phMgr = mgr_new;
+
+ return 0;
+}
+
+/*
+ * ======== cod_delete ========
+ * Purpose:
+ * Delete a code manager object.
+ */
+void cod_delete(struct cod_manager *hmgr)
+{
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(IS_VALID(hmgr));
+
+ if (hmgr->base_lib) {
+ if (hmgr->loaded)
+ hmgr->fxns.unload_fxn(hmgr->base_lib, &hmgr->attrs);
+
+ hmgr->fxns.close_fxn(hmgr->base_lib);
+ }
+ if (hmgr->target) {
+ hmgr->fxns.delete_fxn(hmgr->target);
+ hmgr->fxns.exit_fxn();
+ }
+ hmgr->ul_magic = ~MAGIC;
+ kfree(hmgr);
+}
+
+/*
+ * ======== cod_exit ========
+ * Purpose:
+ * Discontinue usage of the COD module.
+ *
+ */
+void cod_exit(void)
+{
+ DBC_REQUIRE(refs > 0);
+
+ refs--;
+
+ DBC_ENSURE(refs >= 0);
+}
+
+/*
+ * ======== cod_get_base_lib ========
+ * Purpose:
+ * Get handle to the base image DBL library.
+ */
+int cod_get_base_lib(struct cod_manager *cod_mgr_obj,
+ struct dbll_library_obj **plib)
+{
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(IS_VALID(cod_mgr_obj));
+ DBC_REQUIRE(plib != NULL);
+
+ *plib = (struct dbll_library_obj *)cod_mgr_obj->base_lib;
+
+ return status;
+}
+
+/*
+ * ======== cod_get_base_name ========
+ */
+int cod_get_base_name(struct cod_manager *cod_mgr_obj, char *pszName,
+ u32 usize)
+{
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(IS_VALID(cod_mgr_obj));
+ DBC_REQUIRE(pszName != NULL);
+
+ if (usize <= COD_MAXPATHLENGTH)
+ strncpy(pszName, cod_mgr_obj->sz_zl_file, usize);
+ else
+ status = -EPERM;
+
+ return status;
+}
+
+/*
+ * ======== cod_get_entry ========
+ * Purpose:
+ * Retrieve the entry point of a loaded DSP program image
+ *
+ */
+int cod_get_entry(struct cod_manager *cod_mgr_obj, u32 *pulEntry)
+{
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(IS_VALID(cod_mgr_obj));
+ DBC_REQUIRE(pulEntry != NULL);
+
+ *pulEntry = cod_mgr_obj->ul_entry;
+
+ return 0;
+}
+
+/*
+ * ======== cod_get_loader ========
+ * Purpose:
+ * Get handle to the DBLL loader.
+ */
+int cod_get_loader(struct cod_manager *cod_mgr_obj,
+ struct dbll_tar_obj **phLoader)
+{
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(IS_VALID(cod_mgr_obj));
+ DBC_REQUIRE(phLoader != NULL);
+
+ *phLoader = (struct dbll_tar_obj *)cod_mgr_obj->target;
+
+ return status;
+}
+
+/*
+ * ======== cod_get_section ========
+ * Purpose:
+ * Retrieve the starting address and length of a section in the COFF file
+ * given the section name.
+ */
+int cod_get_section(struct cod_libraryobj *lib, IN char *pstrSect,
+ OUT u32 *puAddr, OUT u32 *puLen)
+{
+ struct cod_manager *cod_mgr_obj;
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(lib != NULL);
+ DBC_REQUIRE(IS_VALID(lib->cod_mgr));
+ DBC_REQUIRE(pstrSect != NULL);
+ DBC_REQUIRE(puAddr != NULL);
+ DBC_REQUIRE(puLen != NULL);
+
+ *puAddr = 0;
+ *puLen = 0;
+ if (lib != NULL) {
+ cod_mgr_obj = lib->cod_mgr;
+ status = cod_mgr_obj->fxns.get_sect_fxn(lib->dbll_lib, pstrSect,
+ puAddr, puLen);
+ } else {
+ status = -ESPIPE;
+ }
+
+ DBC_ENSURE(DSP_SUCCEEDED(status) || ((*puAddr == 0) && (*puLen == 0)));
+
+ return status;
+}
+
+/*
+ * ======== cod_get_sym_value ========
+ * Purpose:
+ * Retrieve the value for the specified symbol. The symbol is first
+ * searched for literally and then, if not found, searched for as a
+ * C symbol.
+ *
+ */
+int cod_get_sym_value(struct cod_manager *hmgr, char *pstrSym,
+ u32 *pul_value)
+{
+ struct dbll_sym_val *dbll_sym;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(IS_VALID(hmgr));
+ DBC_REQUIRE(pstrSym != NULL);
+ DBC_REQUIRE(pul_value != NULL);
+
+ dev_dbg(bridge, "%s: hmgr: %p pstrSym: %s pul_value: %p\n",
+ __func__, hmgr, pstrSym, pul_value);
+ if (hmgr->base_lib) {
+ if (!hmgr->fxns.
+ get_addr_fxn(hmgr->base_lib, pstrSym, &dbll_sym)) {
+ if (!hmgr->fxns.
+ get_c_addr_fxn(hmgr->base_lib, pstrSym, &dbll_sym))
+ return -ESPIPE;
+ }
+ } else {
+ return -ESPIPE;
+ }
+
+ *pul_value = dbll_sym->value;
+
+ return 0;
+}
+
+/*
+ * ======== cod_init ========
+ * Purpose:
+ * Initialize the COD module's private state.
+ *
+ */
+bool cod_init(void)
+{
+ bool ret = true;
+
+ DBC_REQUIRE(refs >= 0);
+
+ if (ret)
+ refs++;
+
+ DBC_ENSURE((ret && refs > 0) || (!ret && refs >= 0));
+ return ret;
+}
+
+/*
+ * ======== cod_load_base ========
+ * Purpose:
+ * Load the initial program image, optionally with command-line arguments,
+ * on the DSP system managed by the supplied handle. The program to be
+ * loaded must be the first element of the args array and must be a fully
+ * qualified pathname.
+ * Details:
+ * if nArgc doesn't match the number of arguments in the aArgs array, the
+ * aArgs array is searched for a NULL terminating entry, and argc is
+ * recalculated to reflect this. In this way, we can support NULL
+ * terminating aArgs arrays, if nArgc is very large.
+ */
+int cod_load_base(struct cod_manager *hmgr, u32 nArgc, char *aArgs[],
+ cod_writefxn pfn_write, void *pArb, char *envp[])
+{
+ dbll_flags flags;
+ struct dbll_attrs save_attrs;
+ struct dbll_attrs new_attrs;
+ int status;
+ u32 i;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(IS_VALID(hmgr));
+ DBC_REQUIRE(nArgc > 0);
+ DBC_REQUIRE(aArgs != NULL);
+ DBC_REQUIRE(aArgs[0] != NULL);
+ DBC_REQUIRE(pfn_write != NULL);
+ DBC_REQUIRE(hmgr->base_lib != NULL);
+
+ /*
+ * Make sure every argv[] stated in argc has a value, or change argc to
+ * reflect true number in NULL terminated argv array.
+ */
+ for (i = 0; i < nArgc; i++) {
+ if (aArgs[i] == NULL) {
+ nArgc = i;
+ break;
+ }
+ }
+
+ /* set the write function for this operation */
+ hmgr->fxns.get_attrs_fxn(hmgr->target, &save_attrs);
+
+ new_attrs = save_attrs;
+ new_attrs.write = (dbll_write_fxn) pfn_write;
+ new_attrs.input_params = pArb;
+ new_attrs.alloc = (dbll_alloc_fxn) no_op;
+ new_attrs.free = (dbll_free_fxn) no_op;
+ new_attrs.log_write = NULL;
+ new_attrs.log_write_handle = NULL;
+
+ /* Load the image */
+ flags = DBLL_CODE | DBLL_DATA | DBLL_SYMB;
+ status = hmgr->fxns.load_fxn(hmgr->base_lib, flags, &new_attrs,
+ &hmgr->ul_entry);
+ if (DSP_FAILED(status))
+ hmgr->fxns.close_fxn(hmgr->base_lib);
+
+ if (DSP_SUCCEEDED(status))
+ hmgr->loaded = true;
+ else
+ hmgr->base_lib = NULL;
+
+ return status;
+}
+
+/*
+ * ======== cod_open ========
+ * Open library for reading sections.
+ */
+int cod_open(struct cod_manager *hmgr, IN char *pszCoffPath,
+ u32 flags, struct cod_libraryobj **pLib)
+{
+ int status = 0;
+ struct cod_libraryobj *lib = NULL;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(IS_VALID(hmgr));
+ DBC_REQUIRE(pszCoffPath != NULL);
+ DBC_REQUIRE(flags == COD_NOLOAD || flags == COD_SYMB);
+ DBC_REQUIRE(pLib != NULL);
+
+ *pLib = NULL;
+
+ lib = kzalloc(sizeof(struct cod_libraryobj), GFP_KERNEL);
+ if (lib == NULL)
+ status = -ENOMEM;
+
+ if (DSP_SUCCEEDED(status)) {
+ lib->cod_mgr = hmgr;
+ status = hmgr->fxns.open_fxn(hmgr->target, pszCoffPath, flags,
+ &lib->dbll_lib);
+ if (DSP_SUCCEEDED(status))
+ *pLib = lib;
+ }
+
+ if (DSP_FAILED(status))
+ pr_err("%s: error status 0x%x, pszCoffPath: %s flags: 0x%x\n",
+ __func__, status, pszCoffPath, flags);
+ return status;
+}
+
+/*
+ * ======== cod_open_base ========
+ * Purpose:
+ * Open base image for reading sections.
+ */
+int cod_open_base(struct cod_manager *hmgr, IN char *pszCoffPath,
+ dbll_flags flags)
+{
+ int status = 0;
+ struct dbll_library_obj *lib;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(IS_VALID(hmgr));
+ DBC_REQUIRE(pszCoffPath != NULL);
+
+ /* if we previously opened a base image, close it now */
+ if (hmgr->base_lib) {
+ if (hmgr->loaded) {
+ hmgr->fxns.unload_fxn(hmgr->base_lib, &hmgr->attrs);
+ hmgr->loaded = false;
+ }
+ hmgr->fxns.close_fxn(hmgr->base_lib);
+ hmgr->base_lib = NULL;
+ }
+ status = hmgr->fxns.open_fxn(hmgr->target, pszCoffPath, flags, &lib);
+ if (DSP_SUCCEEDED(status)) {
+ /* hang onto the library for subsequent sym table usage */
+ hmgr->base_lib = lib;
+ strncpy(hmgr->sz_zl_file, pszCoffPath, COD_MAXPATHLENGTH - 1);
+ hmgr->sz_zl_file[COD_MAXPATHLENGTH - 1] = '\0';
+ }
+
+ if (DSP_FAILED(status))
+ pr_err("%s: error status 0x%x pszCoffPath: %s\n", __func__,
+ status, pszCoffPath);
+ return status;
+}
+
+/*
+ * ======== cod_read_section ========
+ * Purpose:
+ * Retrieve the content of a code section given the section name.
+ */
+int cod_read_section(struct cod_libraryobj *lib, IN char *pstrSect,
+ OUT char *pstrContent, IN u32 cContentSize)
+{
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(lib != NULL);
+ DBC_REQUIRE(IS_VALID(lib->cod_mgr));
+ DBC_REQUIRE(pstrSect != NULL);
+ DBC_REQUIRE(pstrContent != NULL);
+
+ if (lib != NULL)
+ status =
+ lib->cod_mgr->fxns.read_sect_fxn(lib->dbll_lib, pstrSect,
+ pstrContent, cContentSize);
+ else
+ status = -ESPIPE;
+
+ return status;
+}
+
+/*
+ * ======== no_op ========
+ * Purpose:
+ * No Operation.
+ *
+ */
+static bool no_op(void)
+{
+ return true;
+}
--- /dev/null
+/*
+ * dbll.c
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/* ----------------------------------- Host OS */
+#include <dspbridge/host_os.h>
+
+/* ----------------------------------- DSP/BIOS Bridge */
+#include <dspbridge/std.h>
+#include <dspbridge/dbdefs.h>
+
+/* ----------------------------------- Trace & Debug */
+#include <dspbridge/dbc.h>
+#include <dspbridge/gh.h>
+
+/* ----------------------------------- OS Adaptation Layer */
+
+/* Dynamic loader library interface */
+#include <dspbridge/dynamic_loader.h>
+#include <dspbridge/getsection.h>
+
+/* ----------------------------------- This */
+#include <dspbridge/dbll.h>
+#include <dspbridge/rmm.h>
+
+/* Number of buckets for symbol hash table */
+#define MAXBUCKETS 211
+
+/* Max buffer length */
+#define MAXEXPR 128
+
+#ifndef UINT32_C
+#define UINT32_C(zzz) ((uint32_t)zzz)
+#endif
+#define DOFF_ALIGN(x) (((x) + 3) & ~UINT32_C(3))
+
+/*
+ * ======== struct dbll_tar_obj* ========
+ * A target may have one or more libraries of symbols/code/data loaded
+ * onto it, where a library is simply the symbols/code/data contained
+ * in a DOFF file.
+ */
+/*
+ * ======== dbll_tar_obj ========
+ */
+struct dbll_tar_obj {
+ struct dbll_attrs attrs;
+ struct dbll_library_obj *head; /* List of all opened libraries */
+};
+
+/*
+ * The following 4 typedefs are "super classes" of the dynamic loader
+ * library types used in dynamic loader functions (dynamic_loader.h).
+ */
+/*
+ * ======== dbll_stream ========
+ * Contains dynamic_loader_stream
+ */
+struct dbll_stream {
+ struct dynamic_loader_stream dl_stream;
+ struct dbll_library_obj *lib;
+};
+
+/*
+ * ======== ldr_symbol ========
+ */
+struct ldr_symbol {
+ struct dynamic_loader_sym dl_symbol;
+ struct dbll_library_obj *lib;
+};
+
+/*
+ * ======== dbll_alloc ========
+ */
+struct dbll_alloc {
+ struct dynamic_loader_allocate dl_alloc;
+ struct dbll_library_obj *lib;
+};
+
+/*
+ * ======== dbll_init_obj ========
+ */
+struct dbll_init_obj {
+ struct dynamic_loader_initialize dl_init;
+ struct dbll_library_obj *lib;
+};
+
+/*
+ * ======== DBLL_Library ========
+ * A library handle is returned by DBLL_Open() and is passed to dbll_load()
+ * to load symbols/code/data, and to dbll_unload(), to remove the
+ * symbols/code/data loaded by dbll_load().
+ */
+
+/*
+ * ======== dbll_library_obj ========
+ */
+struct dbll_library_obj {
+ struct dbll_library_obj *next; /* Next library in target's list */
+ struct dbll_library_obj *prev; /* Previous in the list */
+ struct dbll_tar_obj *target_obj; /* target for this library */
+
+ /* Objects needed by dynamic loader */
+ struct dbll_stream stream;
+ struct ldr_symbol symbol;
+ struct dbll_alloc allocate;
+ struct dbll_init_obj init;
+ void *dload_mod_obj;
+
+ char *file_name; /* COFF file name */
+ void *fp; /* Opaque file handle */
+ u32 entry; /* Entry point */
+ void *desc; /* desc of DOFF file loaded */
+ u32 open_ref; /* Number of times opened */
+ u32 load_ref; /* Number of times loaded */
+ struct gh_t_hash_tab *sym_tab; /* Hash table of symbols */
+ u32 ul_pos;
+};
+
+/*
+ * ======== dbll_symbol ========
+ */
+struct dbll_symbol {
+ struct dbll_sym_val value;
+ char *name;
+};
+
+static void dof_close(struct dbll_library_obj *zl_lib);
+static int dof_open(struct dbll_library_obj *zl_lib);
+static s32 no_op(struct dynamic_loader_initialize *thisptr, void *bufr,
+ ldr_addr locn, struct ldr_section_info *info, unsigned bytsiz);
+
+/*
+ * Functions called by dynamic loader
+ *
+ */
+/* dynamic_loader_stream */
+static int dbll_read_buffer(struct dynamic_loader_stream *this, void *buffer,
+ unsigned bufsize);
+static int dbll_set_file_posn(struct dynamic_loader_stream *this,
+ unsigned int pos);
+/* dynamic_loader_sym */
+static struct dynload_symbol *dbll_find_symbol(struct dynamic_loader_sym *this,
+ const char *name);
+static struct dynload_symbol *dbll_add_to_symbol_table(struct dynamic_loader_sym
+ *this, const char *name,
+ unsigned moduleId);
+static struct dynload_symbol *find_in_symbol_table(struct dynamic_loader_sym
+ *this, const char *name,
+ unsigned moduleid);
+static void dbll_purge_symbol_table(struct dynamic_loader_sym *this,
+ unsigned moduleId);
+static void *allocate(struct dynamic_loader_sym *this, unsigned memsize);
+static void deallocate(struct dynamic_loader_sym *this, void *memPtr);
+static void dbll_err_report(struct dynamic_loader_sym *this, const char *errstr,
+ va_list args);
+/* dynamic_loader_allocate */
+static int dbll_rmm_alloc(struct dynamic_loader_allocate *this,
+ struct ldr_section_info *info, unsigned align);
+static void rmm_dealloc(struct dynamic_loader_allocate *this,
+ struct ldr_section_info *info);
+
+/* dynamic_loader_initialize */
+static int connect(struct dynamic_loader_initialize *this);
+static int read_mem(struct dynamic_loader_initialize *this, void *buf,
+ ldr_addr addr, struct ldr_section_info *info,
+ unsigned nbytes);
+static int write_mem(struct dynamic_loader_initialize *this, void *buf,
+ ldr_addr addr, struct ldr_section_info *info,
+ unsigned nbytes);
+static int fill_mem(struct dynamic_loader_initialize *this, ldr_addr addr,
+ struct ldr_section_info *info, unsigned nbytes,
+ unsigned val);
+static int execute(struct dynamic_loader_initialize *this, ldr_addr start);
+static void release(struct dynamic_loader_initialize *this);
+
+/* symbol table hash functions */
+static u16 name_hash(void *name, u16 max_bucket);
+static bool name_match(void *name, void *sp);
+static void sym_delete(void *sp);
+
+static u32 refs; /* module reference count */
+
+/* Symbol Redefinition */
+static int redefined_symbol;
+static int gbl_search = 1;
+
+/*
+ * ======== dbll_close ========
+ */
+void dbll_close(struct dbll_library_obj *zl_lib)
+{
+ struct dbll_tar_obj *zl_target;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(zl_lib);
+ DBC_REQUIRE(zl_lib->open_ref > 0);
+ zl_target = zl_lib->target_obj;
+ zl_lib->open_ref--;
+ if (zl_lib->open_ref == 0) {
+ /* Remove library from list */
+ if (zl_target->head == zl_lib)
+ zl_target->head = zl_lib->next;
+
+ if (zl_lib->prev)
+ (zl_lib->prev)->next = zl_lib->next;
+
+ if (zl_lib->next)
+ (zl_lib->next)->prev = zl_lib->prev;
+
+ /* Free DOF resources */
+ dof_close(zl_lib);
+ kfree(zl_lib->file_name);
+
+ /* remove symbols from symbol table */
+ if (zl_lib->sym_tab)
+ gh_delete(zl_lib->sym_tab);
+
+ /* remove the library object itself */
+ kfree(zl_lib);
+ zl_lib = NULL;
+ }
+}
+
+/*
+ * ======== dbll_create ========
+ */
+int dbll_create(struct dbll_tar_obj **target_obj,
+ struct dbll_attrs *pattrs)
+{
+ struct dbll_tar_obj *pzl_target;
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(pattrs != NULL);
+ DBC_REQUIRE(target_obj != NULL);
+
+ /* Allocate DBL target object */
+ pzl_target = kzalloc(sizeof(struct dbll_tar_obj), GFP_KERNEL);
+ if (target_obj != NULL) {
+ if (pzl_target == NULL) {
+ *target_obj = NULL;
+ status = -ENOMEM;
+ } else {
+ pzl_target->attrs = *pattrs;
+ *target_obj = (struct dbll_tar_obj *)pzl_target;
+ }
+ DBC_ENSURE((DSP_SUCCEEDED(status) && *target_obj) ||
+ (DSP_FAILED(status) && *target_obj == NULL));
+ }
+
+ return status;
+}
+
+/*
+ * ======== dbll_delete ========
+ */
+void dbll_delete(struct dbll_tar_obj *target)
+{
+ struct dbll_tar_obj *zl_target = (struct dbll_tar_obj *)target;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(zl_target);
+
+ if (zl_target != NULL)
+ kfree(zl_target);
+
+}
+
+/*
+ * ======== dbll_exit ========
+ * Discontinue usage of DBL module.
+ */
+void dbll_exit(void)
+{
+ DBC_REQUIRE(refs > 0);
+
+ refs--;
+
+ if (refs == 0)
+ gh_exit();
+
+ DBC_ENSURE(refs >= 0);
+}
+
+/*
+ * ======== dbll_get_addr ========
+ * Get address of name in the specified library.
+ */
+bool dbll_get_addr(struct dbll_library_obj *zl_lib, char *name,
+ struct dbll_sym_val **ppSym)
+{
+ struct dbll_symbol *sym;
+ bool status = false;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(zl_lib);
+ DBC_REQUIRE(name != NULL);
+ DBC_REQUIRE(ppSym != NULL);
+ DBC_REQUIRE(zl_lib->sym_tab != NULL);
+
+ sym = (struct dbll_symbol *)gh_find(zl_lib->sym_tab, name);
+ if (sym != NULL) {
+ *ppSym = &sym->value;
+ status = true;
+ }
+
+ dev_dbg(bridge, "%s: lib: %p name: %s paddr: %p, status 0x%x\n",
+ __func__, zl_lib, name, ppSym, status);
+ return status;
+}
+
+/*
+ * ======== dbll_get_attrs ========
+ * Retrieve the attributes of the target.
+ */
+void dbll_get_attrs(struct dbll_tar_obj *target, struct dbll_attrs *pattrs)
+{
+ struct dbll_tar_obj *zl_target = (struct dbll_tar_obj *)target;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(zl_target);
+ DBC_REQUIRE(pattrs != NULL);
+
+ if ((pattrs != NULL) && (zl_target != NULL))
+ *pattrs = zl_target->attrs;
+
+}
+
+/*
+ * ======== dbll_get_c_addr ========
+ * Get address of a "C" name in the specified library.
+ */
+bool dbll_get_c_addr(struct dbll_library_obj *zl_lib, char *name,
+ struct dbll_sym_val **ppSym)
+{
+ struct dbll_symbol *sym;
+ char cname[MAXEXPR + 1];
+ bool status = false;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(zl_lib);
+ DBC_REQUIRE(ppSym != NULL);
+ DBC_REQUIRE(zl_lib->sym_tab != NULL);
+ DBC_REQUIRE(name != NULL);
+
+ cname[0] = '_';
+
+ strncpy(cname + 1, name, sizeof(cname) - 2);
+ cname[MAXEXPR] = '\0'; /* insure '\0' string termination */
+
+ /* Check for C name, if not found */
+ sym = (struct dbll_symbol *)gh_find(zl_lib->sym_tab, cname);
+
+ if (sym != NULL) {
+ *ppSym = &sym->value;
+ status = true;
+ }
+
+ return status;
+}
+
+/*
+ * ======== dbll_get_sect ========
+ * Get the base address and size (in bytes) of a COFF section.
+ */
+int dbll_get_sect(struct dbll_library_obj *lib, char *name, u32 *paddr,
+ u32 *psize)
+{
+ u32 byte_size;
+ bool opened_doff = false;
+ const struct ldr_section_info *sect = NULL;
+ struct dbll_library_obj *zl_lib = (struct dbll_library_obj *)lib;
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(name != NULL);
+ DBC_REQUIRE(paddr != NULL);
+ DBC_REQUIRE(psize != NULL);
+ DBC_REQUIRE(zl_lib);
+
+ /* If DOFF file is not open, we open it. */
+ if (zl_lib != NULL) {
+ if (zl_lib->fp == NULL) {
+ status = dof_open(zl_lib);
+ if (DSP_SUCCEEDED(status))
+ opened_doff = true;
+
+ } else {
+ (*(zl_lib->target_obj->attrs.fseek)) (zl_lib->fp,
+ zl_lib->ul_pos,
+ SEEK_SET);
+ }
+ } else {
+ status = -EFAULT;
+ }
+ if (DSP_SUCCEEDED(status)) {
+ byte_size = 1;
+ if (dload_get_section_info(zl_lib->desc, name, §)) {
+ *paddr = sect->load_addr;
+ *psize = sect->size * byte_size;
+ /* Make sure size is even for good swap */
+ if (*psize % 2)
+ (*psize)++;
+
+ /* Align size */
+ *psize = DOFF_ALIGN(*psize);
+ } else {
+ status = -ENXIO;
+ }
+ }
+ if (opened_doff) {
+ dof_close(zl_lib);
+ opened_doff = false;
+ }
+
+ dev_dbg(bridge, "%s: lib: %p name: %s paddr: %p psize: %p, "
+ "status 0x%x\n", __func__, lib, name, paddr, psize, status);
+
+ return status;
+}
+
+/*
+ * ======== dbll_init ========
+ */
+bool dbll_init(void)
+{
+ DBC_REQUIRE(refs >= 0);
+
+ if (refs == 0)
+ gh_init();
+
+ refs++;
+
+ return true;
+}
+
+/*
+ * ======== dbll_load ========
+ */
+int dbll_load(struct dbll_library_obj *lib, dbll_flags flags,
+ struct dbll_attrs *attrs, u32 *pEntry)
+{
+ struct dbll_library_obj *zl_lib = (struct dbll_library_obj *)lib;
+ struct dbll_tar_obj *dbzl;
+ bool got_symbols = true;
+ s32 err;
+ int status = 0;
+ bool opened_doff = false;
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(zl_lib);
+ DBC_REQUIRE(pEntry != NULL);
+ DBC_REQUIRE(attrs != NULL);
+
+ /*
+ * Load if not already loaded.
+ */
+ if (zl_lib->load_ref == 0 || !(flags & DBLL_DYNAMIC)) {
+ dbzl = zl_lib->target_obj;
+ dbzl->attrs = *attrs;
+ /* Create a hash table for symbols if not already created */
+ if (zl_lib->sym_tab == NULL) {
+ got_symbols = false;
+ zl_lib->sym_tab = gh_create(MAXBUCKETS,
+ sizeof(struct dbll_symbol),
+ name_hash,
+ name_match, sym_delete);
+ if (zl_lib->sym_tab == NULL)
+ status = -ENOMEM;
+
+ }
+ /*
+ * Set up objects needed by the dynamic loader
+ */
+ /* Stream */
+ zl_lib->stream.dl_stream.read_buffer = dbll_read_buffer;
+ zl_lib->stream.dl_stream.set_file_posn = dbll_set_file_posn;
+ zl_lib->stream.lib = zl_lib;
+ /* Symbol */
+ zl_lib->symbol.dl_symbol.find_matching_symbol =
+ dbll_find_symbol;
+ if (got_symbols) {
+ zl_lib->symbol.dl_symbol.add_to_symbol_table =
+ find_in_symbol_table;
+ } else {
+ zl_lib->symbol.dl_symbol.add_to_symbol_table =
+ dbll_add_to_symbol_table;
+ }
+ zl_lib->symbol.dl_symbol.purge_symbol_table =
+ dbll_purge_symbol_table;
+ zl_lib->symbol.dl_symbol.dload_allocate = allocate;
+ zl_lib->symbol.dl_symbol.dload_deallocate = deallocate;
+ zl_lib->symbol.dl_symbol.error_report = dbll_err_report;
+ zl_lib->symbol.lib = zl_lib;
+ /* Allocate */
+ zl_lib->allocate.dl_alloc.dload_allocate = dbll_rmm_alloc;
+ zl_lib->allocate.dl_alloc.dload_deallocate = rmm_dealloc;
+ zl_lib->allocate.lib = zl_lib;
+ /* Init */
+ zl_lib->init.dl_init.connect = connect;
+ zl_lib->init.dl_init.readmem = read_mem;
+ zl_lib->init.dl_init.writemem = write_mem;
+ zl_lib->init.dl_init.fillmem = fill_mem;
+ zl_lib->init.dl_init.execute = execute;
+ zl_lib->init.dl_init.release = release;
+ zl_lib->init.lib = zl_lib;
+ /* If COFF file is not open, we open it. */
+ if (zl_lib->fp == NULL) {
+ status = dof_open(zl_lib);
+ if (DSP_SUCCEEDED(status))
+ opened_doff = true;
+
+ }
+ if (DSP_SUCCEEDED(status)) {
+ zl_lib->ul_pos = (*(zl_lib->target_obj->attrs.ftell))
+ (zl_lib->fp);
+ /* Reset file cursor */
+ (*(zl_lib->target_obj->attrs.fseek)) (zl_lib->fp,
+ (long)0,
+ SEEK_SET);
+ symbols_reloaded = true;
+ /* The 5th argument, DLOAD_INITBSS, tells the DLL
+ * module to zero-init all BSS sections. In general,
+ * this is not necessary and also increases load time.
+ * We may want to make this configurable by the user */
+ err = dynamic_load_module(&zl_lib->stream.dl_stream,
+ &zl_lib->symbol.dl_symbol,
+ &zl_lib->allocate.dl_alloc,
+ &zl_lib->init.dl_init,
+ DLOAD_INITBSS,
+ &zl_lib->dload_mod_obj);
+
+ if (err != 0) {
+ status = -EILSEQ;
+ } else if (redefined_symbol) {
+ zl_lib->load_ref++;
+ dbll_unload(zl_lib, (struct dbll_attrs *)attrs);
+ redefined_symbol = false;
+ status = -EILSEQ;
+ } else {
+ *pEntry = zl_lib->entry;
+ }
+ }
+ }
+ if (DSP_SUCCEEDED(status))
+ zl_lib->load_ref++;
+
+ /* Clean up DOFF resources */
+ if (opened_doff)
+ dof_close(zl_lib);
+
+ DBC_ENSURE(DSP_FAILED(status) || zl_lib->load_ref > 0);
+
+ dev_dbg(bridge, "%s: lib: %p flags: 0x%x pEntry: %p, status 0x%x\n",
+ __func__, lib, flags, pEntry, status);
+
+ return status;
+}
+
+/*
+ * ======== dbll_load_sect ========
+ * Not supported for COFF.
+ */
+int dbll_load_sect(struct dbll_library_obj *zl_lib, char *sectName,
+ struct dbll_attrs *attrs)
+{
+ DBC_REQUIRE(zl_lib);
+
+ return -ENOSYS;
+}
+
+/*
+ * ======== dbll_open ========
+ */
+int dbll_open(struct dbll_tar_obj *target, char *file, dbll_flags flags,
+ struct dbll_library_obj **pLib)
+{
+ struct dbll_tar_obj *zl_target = (struct dbll_tar_obj *)target;
+ struct dbll_library_obj *zl_lib = NULL;
+ s32 err;
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(zl_target);
+ DBC_REQUIRE(zl_target->attrs.fopen != NULL);
+ DBC_REQUIRE(file != NULL);
+ DBC_REQUIRE(pLib != NULL);
+
+ zl_lib = zl_target->head;
+ while (zl_lib != NULL) {
+ if (strcmp(zl_lib->file_name, file) == 0) {
+ /* Library is already opened */
+ zl_lib->open_ref++;
+ break;
+ }
+ zl_lib = zl_lib->next;
+ }
+ if (zl_lib == NULL) {
+ /* Allocate DBL library object */
+ zl_lib = kzalloc(sizeof(struct dbll_library_obj), GFP_KERNEL);
+ if (zl_lib == NULL) {
+ status = -ENOMEM;
+ } else {
+ zl_lib->ul_pos = 0;
+ /* Increment ref count to allow close on failure
+ * later on */
+ zl_lib->open_ref++;
+ zl_lib->target_obj = zl_target;
+ /* Keep a copy of the file name */
+ zl_lib->file_name = kzalloc(strlen(file) + 1,
+ GFP_KERNEL);
+ if (zl_lib->file_name == NULL) {
+ status = -ENOMEM;
+ } else {
+ strncpy(zl_lib->file_name, file,
+ strlen(file) + 1);
+ }
+ zl_lib->sym_tab = NULL;
+ }
+ }
+ /*
+ * Set up objects needed by the dynamic loader
+ */
+ if (DSP_FAILED(status))
+ goto func_cont;
+
+ /* Stream */
+ zl_lib->stream.dl_stream.read_buffer = dbll_read_buffer;
+ zl_lib->stream.dl_stream.set_file_posn = dbll_set_file_posn;
+ zl_lib->stream.lib = zl_lib;
+ /* Symbol */
+ zl_lib->symbol.dl_symbol.add_to_symbol_table = dbll_add_to_symbol_table;
+ zl_lib->symbol.dl_symbol.find_matching_symbol = dbll_find_symbol;
+ zl_lib->symbol.dl_symbol.purge_symbol_table = dbll_purge_symbol_table;
+ zl_lib->symbol.dl_symbol.dload_allocate = allocate;
+ zl_lib->symbol.dl_symbol.dload_deallocate = deallocate;
+ zl_lib->symbol.dl_symbol.error_report = dbll_err_report;
+ zl_lib->symbol.lib = zl_lib;
+ /* Allocate */
+ zl_lib->allocate.dl_alloc.dload_allocate = dbll_rmm_alloc;
+ zl_lib->allocate.dl_alloc.dload_deallocate = rmm_dealloc;
+ zl_lib->allocate.lib = zl_lib;
+ /* Init */
+ zl_lib->init.dl_init.connect = connect;
+ zl_lib->init.dl_init.readmem = read_mem;
+ zl_lib->init.dl_init.writemem = write_mem;
+ zl_lib->init.dl_init.fillmem = fill_mem;
+ zl_lib->init.dl_init.execute = execute;
+ zl_lib->init.dl_init.release = release;
+ zl_lib->init.lib = zl_lib;
+ if (DSP_SUCCEEDED(status) && zl_lib->fp == NULL)
+ status = dof_open(zl_lib);
+
+ zl_lib->ul_pos = (*(zl_lib->target_obj->attrs.ftell)) (zl_lib->fp);
+ (*(zl_lib->target_obj->attrs.fseek)) (zl_lib->fp, (long)0, SEEK_SET);
+ /* Create a hash table for symbols if flag is set */
+ if (zl_lib->sym_tab != NULL || !(flags & DBLL_SYMB))
+ goto func_cont;
+
+ zl_lib->sym_tab =
+ gh_create(MAXBUCKETS, sizeof(struct dbll_symbol), name_hash,
+ name_match, sym_delete);
+ if (zl_lib->sym_tab == NULL) {
+ status = -ENOMEM;
+ } else {
+ /* Do a fake load to get symbols - set write func to no_op */
+ zl_lib->init.dl_init.writemem = no_op;
+ err = dynamic_open_module(&zl_lib->stream.dl_stream,
+ &zl_lib->symbol.dl_symbol,
+ &zl_lib->allocate.dl_alloc,
+ &zl_lib->init.dl_init, 0,
+ &zl_lib->dload_mod_obj);
+ if (err != 0) {
+ status = -EILSEQ;
+ } else {
+ /* Now that we have the symbol table, we can unload */
+ err = dynamic_unload_module(zl_lib->dload_mod_obj,
+ &zl_lib->symbol.dl_symbol,
+ &zl_lib->allocate.dl_alloc,
+ &zl_lib->init.dl_init);
+ if (err != 0)
+ status = -EILSEQ;
+
+ zl_lib->dload_mod_obj = NULL;
+ }
+ }
+func_cont:
+ if (DSP_SUCCEEDED(status)) {
+ if (zl_lib->open_ref == 1) {
+ /* First time opened - insert in list */
+ if (zl_target->head)
+ (zl_target->head)->prev = zl_lib;
+
+ zl_lib->prev = NULL;
+ zl_lib->next = zl_target->head;
+ zl_target->head = zl_lib;
+ }
+ *pLib = (struct dbll_library_obj *)zl_lib;
+ } else {
+ *pLib = NULL;
+ if (zl_lib != NULL)
+ dbll_close((struct dbll_library_obj *)zl_lib);
+
+ }
+ DBC_ENSURE((DSP_SUCCEEDED(status) && (zl_lib->open_ref > 0) && *pLib)
+ || (DSP_FAILED(status) && *pLib == NULL));
+
+ dev_dbg(bridge, "%s: target: %p file: %s pLib: %p, status 0x%x\n",
+ __func__, target, file, pLib, status);
+
+ return status;
+}
+
+/*
+ * ======== dbll_read_sect ========
+ * Get the content of a COFF section.
+ */
+int dbll_read_sect(struct dbll_library_obj *lib, char *name,
+ char *pContent, u32 size)
+{
+ struct dbll_library_obj *zl_lib = (struct dbll_library_obj *)lib;
+ bool opened_doff = false;
+ u32 byte_size; /* size of bytes */
+ u32 ul_sect_size; /* size of section */
+ const struct ldr_section_info *sect = NULL;
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(zl_lib);
+ DBC_REQUIRE(name != NULL);
+ DBC_REQUIRE(pContent != NULL);
+ DBC_REQUIRE(size != 0);
+
+ /* If DOFF file is not open, we open it. */
+ if (zl_lib != NULL) {
+ if (zl_lib->fp == NULL) {
+ status = dof_open(zl_lib);
+ if (DSP_SUCCEEDED(status))
+ opened_doff = true;
+
+ } else {
+ (*(zl_lib->target_obj->attrs.fseek)) (zl_lib->fp,
+ zl_lib->ul_pos,
+ SEEK_SET);
+ }
+ } else {
+ status = -EFAULT;
+ }
+ if (DSP_FAILED(status))
+ goto func_cont;
+
+ byte_size = 1;
+ if (!dload_get_section_info(zl_lib->desc, name, §)) {
+ status = -ENXIO;
+ goto func_cont;
+ }
+ /*
+ * Ensure the supplied buffer size is sufficient to store
+ * the section content to be read.
+ */
+ ul_sect_size = sect->size * byte_size;
+ /* Make sure size is even for good swap */
+ if (ul_sect_size % 2)
+ ul_sect_size++;
+
+ /* Align size */
+ ul_sect_size = DOFF_ALIGN(ul_sect_size);
+ if (ul_sect_size > size) {
+ status = -EPERM;
+ } else {
+ if (!dload_get_section(zl_lib->desc, sect, pContent))
+ status = -EBADF;
+
+ }
+func_cont:
+ if (opened_doff) {
+ dof_close(zl_lib);
+ opened_doff = false;
+ }
+
+ dev_dbg(bridge, "%s: lib: %p name: %s pContent: %p size: 0x%x, "
+ "status 0x%x\n", __func__, lib, name, pContent, size, status);
+ return status;
+}
+
+/*
+ * ======== dbll_set_attrs ========
+ * Set the attributes of the target.
+ */
+void dbll_set_attrs(struct dbll_tar_obj *target, struct dbll_attrs *pattrs)
+{
+ struct dbll_tar_obj *zl_target = (struct dbll_tar_obj *)target;
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(zl_target);
+ DBC_REQUIRE(pattrs != NULL);
+
+ if ((pattrs != NULL) && (zl_target != NULL))
+ zl_target->attrs = *pattrs;
+
+}
+
+/*
+ * ======== dbll_unload ========
+ */
+void dbll_unload(struct dbll_library_obj *lib, struct dbll_attrs *attrs)
+{
+ struct dbll_library_obj *zl_lib = (struct dbll_library_obj *)lib;
+ s32 err = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(zl_lib);
+ DBC_REQUIRE(zl_lib->load_ref > 0);
+ dev_dbg(bridge, "%s: lib: %p\n", __func__, lib);
+ zl_lib->load_ref--;
+ /* Unload only if reference count is 0 */
+ if (zl_lib->load_ref != 0)
+ goto func_end;
+
+ zl_lib->target_obj->attrs = *attrs;
+ if (zl_lib->dload_mod_obj) {
+ err = dynamic_unload_module(zl_lib->dload_mod_obj,
+ &zl_lib->symbol.dl_symbol,
+ &zl_lib->allocate.dl_alloc,
+ &zl_lib->init.dl_init);
+ if (err != 0)
+ dev_dbg(bridge, "%s: failed: 0x%x\n", __func__, err);
+ }
+ /* remove symbols from symbol table */
+ if (zl_lib->sym_tab != NULL) {
+ gh_delete(zl_lib->sym_tab);
+ zl_lib->sym_tab = NULL;
+ }
+ /* delete DOFF desc since it holds *lots* of host OS
+ * resources */
+ dof_close(zl_lib);
+func_end:
+ DBC_ENSURE(zl_lib->load_ref >= 0);
+}
+
+/*
+ * ======== dbll_unload_sect ========
+ * Not supported for COFF.
+ */
+int dbll_unload_sect(struct dbll_library_obj *lib, char *sectName,
+ struct dbll_attrs *attrs)
+{
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(sectName != NULL);
+
+ return -ENOSYS;
+}
+
+/*
+ * ======== dof_close ========
+ */
+static void dof_close(struct dbll_library_obj *zl_lib)
+{
+ if (zl_lib->desc) {
+ dload_module_close(zl_lib->desc);
+ zl_lib->desc = NULL;
+ }
+ /* close file */
+ if (zl_lib->fp) {
+ (zl_lib->target_obj->attrs.fclose) (zl_lib->fp);
+ zl_lib->fp = NULL;
+ }
+}
+
+/*
+ * ======== dof_open ========
+ */
+static int dof_open(struct dbll_library_obj *zl_lib)
+{
+ void *open = *(zl_lib->target_obj->attrs.fopen);
+ int status = 0;
+
+ /* First open the file for the dynamic loader, then open COF */
+ zl_lib->fp =
+ (void *)((dbll_f_open_fxn) (open)) (zl_lib->file_name, "rb");
+
+ /* Open DOFF module */
+ if (zl_lib->fp && zl_lib->desc == NULL) {
+ (*(zl_lib->target_obj->attrs.fseek)) (zl_lib->fp, (long)0,
+ SEEK_SET);
+ zl_lib->desc =
+ dload_module_open(&zl_lib->stream.dl_stream,
+ &zl_lib->symbol.dl_symbol);
+ if (zl_lib->desc == NULL) {
+ (zl_lib->target_obj->attrs.fclose) (zl_lib->fp);
+ zl_lib->fp = NULL;
+ status = -EBADF;
+ }
+ } else {
+ status = -EBADF;
+ }
+
+ return status;
+}
+
+/*
+ * ======== name_hash ========
+ */
+static u16 name_hash(void *key, u16 max_bucket)
+{
+ u16 ret;
+ u16 hash;
+ char *name = (char *)key;
+
+ DBC_REQUIRE(name != NULL);
+
+ hash = 0;
+
+ while (*name) {
+ hash <<= 1;
+ hash ^= *name++;
+ }
+
+ ret = hash % max_bucket;
+
+ return ret;
+}
+
+/*
+ * ======== name_match ========
+ */
+static bool name_match(void *key, void *value)
+{
+ DBC_REQUIRE(key != NULL);
+ DBC_REQUIRE(value != NULL);
+
+ if ((key != NULL) && (value != NULL)) {
+ if (strcmp((char *)key, ((struct dbll_symbol *)value)->name) ==
+ 0)
+ return true;
+ }
+ return false;
+}
+
+/*
+ * ======== no_op ========
+ */
+static int no_op(struct dynamic_loader_initialize *thisptr, void *bufr,
+ ldr_addr locn, struct ldr_section_info *info, unsigned bytsize)
+{
+ return 1;
+}
+
+/*
+ * ======== sym_delete ========
+ */
+static void sym_delete(void *value)
+{
+ struct dbll_symbol *sp = (struct dbll_symbol *)value;
+
+ kfree(sp->name);
+}
+
+/*
+ * Dynamic Loader Functions
+ */
+
+/* dynamic_loader_stream */
+/*
+ * ======== dbll_read_buffer ========
+ */
+static int dbll_read_buffer(struct dynamic_loader_stream *this, void *buffer,
+ unsigned bufsize)
+{
+ struct dbll_stream *pstream = (struct dbll_stream *)this;
+ struct dbll_library_obj *lib;
+ int bytes_read = 0;
+
+ DBC_REQUIRE(this != NULL);
+ lib = pstream->lib;
+ DBC_REQUIRE(lib);
+
+ if (lib != NULL) {
+ bytes_read =
+ (*(lib->target_obj->attrs.fread)) (buffer, 1, bufsize,
+ lib->fp);
+ }
+ return bytes_read;
+}
+
+/*
+ * ======== dbll_set_file_posn ========
+ */
+static int dbll_set_file_posn(struct dynamic_loader_stream *this,
+ unsigned int pos)
+{
+ struct dbll_stream *pstream = (struct dbll_stream *)this;
+ struct dbll_library_obj *lib;
+ int status = 0; /* Success */
+
+ DBC_REQUIRE(this != NULL);
+ lib = pstream->lib;
+ DBC_REQUIRE(lib);
+
+ if (lib != NULL) {
+ status = (*(lib->target_obj->attrs.fseek)) (lib->fp, (long)pos,
+ SEEK_SET);
+ }
+
+ return status;
+}
+
+/* dynamic_loader_sym */
+
+/*
+ * ======== dbll_find_symbol ========
+ */
+static struct dynload_symbol *dbll_find_symbol(struct dynamic_loader_sym *this,
+ const char *name)
+{
+ struct dynload_symbol *ret_sym;
+ struct ldr_symbol *ldr_sym = (struct ldr_symbol *)this;
+ struct dbll_library_obj *lib;
+ struct dbll_sym_val *dbll_sym = NULL;
+ bool status = false; /* Symbol not found yet */
+
+ DBC_REQUIRE(this != NULL);
+ lib = ldr_sym->lib;
+ DBC_REQUIRE(lib);
+
+ if (lib != NULL) {
+ if (lib->target_obj->attrs.sym_lookup) {
+ /* Check current lib + base lib + dep lib +
+ * persistent lib */
+ status = (*(lib->target_obj->attrs.sym_lookup))
+ (lib->target_obj->attrs.sym_handle,
+ lib->target_obj->attrs.sym_arg,
+ lib->target_obj->attrs.rmm_handle, name,
+ &dbll_sym);
+ } else {
+ /* Just check current lib for symbol */
+ status = dbll_get_addr((struct dbll_library_obj *)lib,
+ (char *)name, &dbll_sym);
+ if (!status) {
+ status =
+ dbll_get_c_addr((struct dbll_library_obj *)
+ lib, (char *)name,
+ &dbll_sym);
+ }
+ }
+ }
+
+ if (!status && gbl_search)
+ dev_dbg(bridge, "%s: Symbol not found: %s\n", __func__, name);
+
+ DBC_ASSERT((status && (dbll_sym != NULL))
+ || (!status && (dbll_sym == NULL)));
+
+ ret_sym = (struct dynload_symbol *)dbll_sym;
+ return ret_sym;
+}
+
+/*
+ * ======== find_in_symbol_table ========
+ */
+static struct dynload_symbol *find_in_symbol_table(struct dynamic_loader_sym
+ *this, const char *name,
+ unsigned moduleid)
+{
+ struct dynload_symbol *ret_sym;
+ struct ldr_symbol *ldr_sym = (struct ldr_symbol *)this;
+ struct dbll_library_obj *lib;
+ struct dbll_symbol *sym;
+
+ DBC_REQUIRE(this != NULL);
+ lib = ldr_sym->lib;
+ DBC_REQUIRE(lib);
+ DBC_REQUIRE(lib->sym_tab != NULL);
+
+ sym = (struct dbll_symbol *)gh_find(lib->sym_tab, (char *)name);
+
+ ret_sym = (struct dynload_symbol *)&sym->value;
+ return ret_sym;
+}
+
+/*
+ * ======== dbll_add_to_symbol_table ========
+ */
+static struct dynload_symbol *dbll_add_to_symbol_table(struct dynamic_loader_sym
+ *this, const char *name,
+ unsigned moduleId)
+{
+ struct dbll_symbol *sym_ptr = NULL;
+ struct dbll_symbol symbol;
+ struct dynload_symbol *dbll_sym = NULL;
+ struct ldr_symbol *ldr_sym = (struct ldr_symbol *)this;
+ struct dbll_library_obj *lib;
+ struct dynload_symbol *ret;
+
+ DBC_REQUIRE(this != NULL);
+ DBC_REQUIRE(name);
+ lib = ldr_sym->lib;
+ DBC_REQUIRE(lib);
+
+ /* Check to see if symbol is already defined in symbol table */
+ if (!(lib->target_obj->attrs.base_image)) {
+ gbl_search = false;
+ dbll_sym = dbll_find_symbol(this, name);
+ gbl_search = true;
+ if (dbll_sym) {
+ redefined_symbol = true;
+ dev_dbg(bridge, "%s already defined in symbol table\n",
+ name);
+ return NULL;
+ }
+ }
+ /* Allocate string to copy symbol name */
+ symbol.name = kzalloc(strlen((char *const)name) + 1, GFP_KERNEL);
+ if (symbol.name == NULL)
+ return NULL;
+
+ if (symbol.name != NULL) {
+ /* Just copy name (value will be filled in by dynamic loader) */
+ strncpy(symbol.name, (char *const)name,
+ strlen((char *const)name) + 1);
+
+ /* Add symbol to symbol table */
+ sym_ptr =
+ (struct dbll_symbol *)gh_insert(lib->sym_tab, (void *)name,
+ (void *)&symbol);
+ if (sym_ptr == NULL)
+ kfree(symbol.name);
+
+ }
+ if (sym_ptr != NULL)
+ ret = (struct dynload_symbol *)&sym_ptr->value;
+ else
+ ret = NULL;
+
+ return ret;
+}
+
+/*
+ * ======== dbll_purge_symbol_table ========
+ */
+static void dbll_purge_symbol_table(struct dynamic_loader_sym *this,
+ unsigned moduleId)
+{
+ struct ldr_symbol *ldr_sym = (struct ldr_symbol *)this;
+ struct dbll_library_obj *lib;
+
+ DBC_REQUIRE(this != NULL);
+ lib = ldr_sym->lib;
+ DBC_REQUIRE(lib);
+
+ /* May not need to do anything */
+}
+
+/*
+ * ======== allocate ========
+ */
+static void *allocate(struct dynamic_loader_sym *this, unsigned memsize)
+{
+ struct ldr_symbol *ldr_sym = (struct ldr_symbol *)this;
+ struct dbll_library_obj *lib;
+ void *buf;
+
+ DBC_REQUIRE(this != NULL);
+ lib = ldr_sym->lib;
+ DBC_REQUIRE(lib);
+
+ buf = kzalloc(memsize, GFP_KERNEL);
+
+ return buf;
+}
+
+/*
+ * ======== deallocate ========
+ */
+static void deallocate(struct dynamic_loader_sym *this, void *memPtr)
+{
+ struct ldr_symbol *ldr_sym = (struct ldr_symbol *)this;
+ struct dbll_library_obj *lib;
+
+ DBC_REQUIRE(this != NULL);
+ lib = ldr_sym->lib;
+ DBC_REQUIRE(lib);
+
+ kfree(memPtr);
+}
+
+/*
+ * ======== dbll_err_report ========
+ */
+static void dbll_err_report(struct dynamic_loader_sym *this, const char *errstr,
+ va_list args)
+{
+ struct ldr_symbol *ldr_sym = (struct ldr_symbol *)this;
+ struct dbll_library_obj *lib;
+ char temp_buf[MAXEXPR];
+
+ DBC_REQUIRE(this != NULL);
+ lib = ldr_sym->lib;
+ DBC_REQUIRE(lib);
+ vsnprintf((char *)temp_buf, MAXEXPR, (char *)errstr, args);
+ dev_dbg(bridge, "%s\n", temp_buf);
+}
+
+/* dynamic_loader_allocate */
+
+/*
+ * ======== dbll_rmm_alloc ========
+ */
+static int dbll_rmm_alloc(struct dynamic_loader_allocate *this,
+ struct ldr_section_info *info, unsigned align)
+{
+ struct dbll_alloc *dbll_alloc_obj = (struct dbll_alloc *)this;
+ struct dbll_library_obj *lib;
+ int status = 0;
+ u32 mem_sect_type;
+ struct rmm_addr rmm_addr_obj;
+ s32 ret = TRUE;
+ unsigned stype = DLOAD_SECTION_TYPE(info->type);
+ char *token = NULL;
+ char *sz_sec_last_token = NULL;
+ char *sz_last_token = NULL;
+ char *sz_sect_name = NULL;
+ char *psz_cur;
+ s32 token_len = 0;
+ s32 seg_id = -1;
+ s32 req = -1;
+ s32 count = 0;
+ u32 alloc_size = 0;
+ u32 run_addr_flag = 0;
+
+ DBC_REQUIRE(this != NULL);
+ lib = dbll_alloc_obj->lib;
+ DBC_REQUIRE(lib);
+
+ mem_sect_type =
+ (stype == DLOAD_TEXT) ? DBLL_CODE : (stype ==
+ DLOAD_BSS) ? DBLL_BSS :
+ DBLL_DATA;
+
+ /* Attempt to extract the segment ID and requirement information from
+ the name of the section */
+ DBC_REQUIRE(info->name);
+ token_len = strlen((char *)(info->name)) + 1;
+
+ sz_sect_name = kzalloc(token_len, GFP_KERNEL);
+ sz_last_token = kzalloc(token_len, GFP_KERNEL);
+ sz_sec_last_token = kzalloc(token_len, GFP_KERNEL);
+
+ if (sz_sect_name == NULL || sz_sec_last_token == NULL ||
+ sz_last_token == NULL) {
+ status = -ENOMEM;
+ goto func_cont;
+ }
+ strncpy(sz_sect_name, (char *)(info->name), token_len);
+ psz_cur = sz_sect_name;
+ while ((token = strsep(&psz_cur, ":")) && *token != '\0') {
+ strncpy(sz_sec_last_token, sz_last_token,
+ strlen(sz_last_token) + 1);
+ strncpy(sz_last_token, token, strlen(token) + 1);
+ token = strsep(&psz_cur, ":");
+ count++; /* optimizes processing */
+ }
+ /* If token is 0 or 1, and sz_sec_last_token is DYN_DARAM or DYN_SARAM,
+ or DYN_EXTERNAL, then mem granularity information is present
+ within the section name - only process if there are at least three
+ tokens within the section name (just a minor optimization) */
+ if (count >= 3)
+ strict_strtol(sz_last_token, 10, (long *)&req);
+
+ if ((req == 0) || (req == 1)) {
+ if (strcmp(sz_sec_last_token, "DYN_DARAM") == 0) {
+ seg_id = 0;
+ } else {
+ if (strcmp(sz_sec_last_token, "DYN_SARAM") == 0) {
+ seg_id = 1;
+ } else {
+ if (strcmp(sz_sec_last_token,
+ "DYN_EXTERNAL") == 0)
+ seg_id = 2;
+ }
+ }
+ }
+func_cont:
+ kfree(sz_sect_name);
+ sz_sect_name = NULL;
+ kfree(sz_last_token);
+ sz_last_token = NULL;
+ kfree(sz_sec_last_token);
+ sz_sec_last_token = NULL;
+
+ if (mem_sect_type == DBLL_CODE)
+ alloc_size = info->size + GEM_L1P_PREFETCH_SIZE;
+ else
+ alloc_size = info->size;
+
+ if (info->load_addr != info->run_addr)
+ run_addr_flag = 1;
+ /* TODO - ideally, we can pass the alignment requirement also
+ * from here */
+ if (lib != NULL) {
+ status =
+ (lib->target_obj->attrs.alloc) (lib->target_obj->attrs.
+ rmm_handle, mem_sect_type,
+ alloc_size, align,
+ (u32 *) &rmm_addr_obj,
+ seg_id, req, FALSE);
+ }
+ if (DSP_FAILED(status)) {
+ ret = false;
+ } else {
+ /* RMM gives word address. Need to convert to byte address */
+ info->load_addr = rmm_addr_obj.addr * DSPWORDSIZE;
+ if (!run_addr_flag)
+ info->run_addr = info->load_addr;
+ info->context = (u32) rmm_addr_obj.segid;
+ dev_dbg(bridge, "%s: %s base = 0x%x len = 0x%x, "
+ "info->run_addr 0x%x, info->load_addr 0x%x\n",
+ __func__, info->name, info->load_addr / DSPWORDSIZE,
+ info->size / DSPWORDSIZE, info->run_addr,
+ info->load_addr);
+ }
+ return ret;
+}
+
+/*
+ * ======== rmm_dealloc ========
+ */
+static void rmm_dealloc(struct dynamic_loader_allocate *this,
+ struct ldr_section_info *info)
+{
+ struct dbll_alloc *dbll_alloc_obj = (struct dbll_alloc *)this;
+ struct dbll_library_obj *lib;
+ u32 segid;
+ int status = 0;
+ unsigned stype = DLOAD_SECTION_TYPE(info->type);
+ u32 mem_sect_type;
+ u32 free_size = 0;
+
+ mem_sect_type =
+ (stype == DLOAD_TEXT) ? DBLL_CODE : (stype ==
+ DLOAD_BSS) ? DBLL_BSS :
+ DBLL_DATA;
+ DBC_REQUIRE(this != NULL);
+ lib = dbll_alloc_obj->lib;
+ DBC_REQUIRE(lib);
+ /* segid was set by alloc function */
+ segid = (u32) info->context;
+ if (mem_sect_type == DBLL_CODE)
+ free_size = info->size + GEM_L1P_PREFETCH_SIZE;
+ else
+ free_size = info->size;
+ if (lib != NULL) {
+ status =
+ (lib->target_obj->attrs.free) (lib->target_obj->attrs.
+ sym_handle, segid,
+ info->load_addr /
+ DSPWORDSIZE, free_size,
+ false);
+ }
+}
+
+/* dynamic_loader_initialize */
+/*
+ * ======== connect ========
+ */
+static int connect(struct dynamic_loader_initialize *this)
+{
+ return true;
+}
+
+/*
+ * ======== read_mem ========
+ * This function does not need to be implemented.
+ */
+static int read_mem(struct dynamic_loader_initialize *this, void *buf,
+ ldr_addr addr, struct ldr_section_info *info,
+ unsigned nbytes)
+{
+ struct dbll_init_obj *init_obj = (struct dbll_init_obj *)this;
+ struct dbll_library_obj *lib;
+ int bytes_read = 0;
+
+ DBC_REQUIRE(this != NULL);
+ lib = init_obj->lib;
+ DBC_REQUIRE(lib);
+ /* Need bridge_brd_read function */
+ return bytes_read;
+}
+
+/*
+ * ======== write_mem ========
+ */
+static int write_mem(struct dynamic_loader_initialize *this, void *buf,
+ ldr_addr addr, struct ldr_section_info *info,
+ unsigned bytes)
+{
+ struct dbll_init_obj *init_obj = (struct dbll_init_obj *)this;
+ struct dbll_library_obj *lib;
+ struct dbll_tar_obj *target_obj;
+ struct dbll_sect_info sect_info;
+ u32 mem_sect_type;
+ bool ret = true;
+
+ DBC_REQUIRE(this != NULL);
+ lib = init_obj->lib;
+ if (!lib)
+ return false;
+
+ target_obj = lib->target_obj;
+
+ mem_sect_type =
+ (DLOAD_SECTION_TYPE(info->type) ==
+ DLOAD_TEXT) ? DBLL_CODE : DBLL_DATA;
+ if (target_obj && target_obj->attrs.write) {
+ ret =
+ (*target_obj->attrs.write) (target_obj->attrs.input_params,
+ addr, buf, bytes,
+ mem_sect_type);
+
+ if (target_obj->attrs.log_write) {
+ sect_info.name = info->name;
+ sect_info.sect_run_addr = info->run_addr;
+ sect_info.sect_load_addr = info->load_addr;
+ sect_info.size = info->size;
+ sect_info.type = mem_sect_type;
+ /* Pass the information about what we've written to
+ * another module */
+ (*target_obj->attrs.log_write) (target_obj->attrs.
+ log_write_handle,
+ §_info, addr,
+ bytes);
+ }
+ }
+ return ret;
+}
+
+/*
+ * ======== fill_mem ========
+ * Fill bytes of memory at a given address with a given value by
+ * writing from a buffer containing the given value. Write in
+ * sets of MAXEXPR (128) bytes to avoid large stack buffer issues.
+ */
+static int fill_mem(struct dynamic_loader_initialize *this, ldr_addr addr,
+ struct ldr_section_info *info, unsigned bytes, unsigned val)
+{
+ bool ret = true;
+ char *pbuf;
+ struct dbll_library_obj *lib;
+ struct dbll_init_obj *init_obj = (struct dbll_init_obj *)this;
+
+ DBC_REQUIRE(this != NULL);
+ lib = init_obj->lib;
+ pbuf = NULL;
+ /* Pass the NULL pointer to write_mem to get the start address of Shared
+ memory. This is a trick to just get the start address, there is no
+ writing taking place with this Writemem
+ */
+ if ((lib->target_obj->attrs.write) != (dbll_write_fxn) no_op)
+ write_mem(this, &pbuf, addr, info, 0);
+ if (pbuf)
+ memset(pbuf, val, bytes);
+
+ return ret;
+}
+
+/*
+ * ======== execute ========
+ */
+static int execute(struct dynamic_loader_initialize *this, ldr_addr start)
+{
+ struct dbll_init_obj *init_obj = (struct dbll_init_obj *)this;
+ struct dbll_library_obj *lib;
+ bool ret = true;
+
+ DBC_REQUIRE(this != NULL);
+ lib = init_obj->lib;
+ DBC_REQUIRE(lib);
+ /* Save entry point */
+ if (lib != NULL)
+ lib->entry = (u32) start;
+
+ return ret;
+}
+
+/*
+ * ======== release ========
+ */
+static void release(struct dynamic_loader_initialize *this)
+{
+}
+
+/**
+ * find_symbol_context - Basic symbol context structure
+ * @address: Symbol Adress
+ * @offset_range: Offset range where the search for the DSP symbol
+ * started.
+ * @cur_best_offset: Best offset to start looking for the DSP symbol
+ * @sym_addr: Address of the DSP symbol
+ * @name: Symbol name
+ *
+ */
+struct find_symbol_context {
+ /* input */
+ u32 address;
+ u32 offset_range;
+ /* state */
+ u32 cur_best_offset;
+ /* output */
+ u32 sym_addr;
+ char name[120];
+};
+
+/**
+ * find_symbol_callback() - Validates symbol address and copies the symbol name
+ * to the user data.
+ * @elem: dsp library context
+ * @user_data: Find symbol context
+ *
+ */
+void find_symbol_callback(void *elem, void *user_data)
+{
+ struct dbll_symbol *symbol = elem;
+ struct find_symbol_context *context = user_data;
+ u32 symbol_addr = symbol->value.value;
+ u32 offset = context->address - symbol_addr;
+
+ /*
+ * Address given should be greater than symbol address,
+ * symbol address should be within specified range
+ * and the offset should be better than previous one
+ */
+ if (context->address >= symbol_addr && symbol_addr < (u32)-1 &&
+ offset < context->cur_best_offset) {
+ context->cur_best_offset = offset;
+ context->sym_addr = symbol_addr;
+ strncpy(context->name, symbol->name, sizeof(context->name));
+ }
+
+ return;
+}
+
+/**
+ * dbll_find_dsp_symbol() - This function retrieves the dsp symbol from the dsp binary.
+ * @zl_lib: DSP binary obj library pointer
+ * @address: Given address to find the dsp symbol
+ * @offset_range: offset range to look for dsp symbol
+ * @sym_addr_output: Symbol Output address
+ * @name_output: String with the dsp symbol
+ *
+ * This function retrieves the dsp symbol from the dsp binary.
+ */
+bool dbll_find_dsp_symbol(struct dbll_library_obj *zl_lib, u32 address,
+ u32 offset_range, u32 *sym_addr_output,
+ char *name_output)
+{
+ bool status = false;
+ struct find_symbol_context context;
+
+ context.address = address;
+ context.offset_range = offset_range;
+ context.cur_best_offset = offset_range;
+ context.sym_addr = 0;
+ context.name[0] = '\0';
+
+ gh_iterate(zl_lib->sym_tab, find_symbol_callback, &context);
+
+ if (context.name[0]) {
+ status = true;
+ strcpy(name_output, context.name);
+ *sym_addr_output = context.sym_addr;
+ }
+
+ return status;
+}
--- /dev/null
+/*
+ * dev.c
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * Implementation of Bridge Bridge driver device operations.
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/* ----------------------------------- Host OS */
+#include <dspbridge/host_os.h>
+
+/* ----------------------------------- DSP/BIOS Bridge */
+#include <dspbridge/std.h>
+#include <dspbridge/dbdefs.h>
+
+/* ----------------------------------- Trace & Debug */
+#include <dspbridge/dbc.h>
+
+/* ----------------------------------- OS Adaptation Layer */
+#include <dspbridge/cfg.h>
+#include <dspbridge/ldr.h>
+#include <dspbridge/list.h>
+
+/* ----------------------------------- Platform Manager */
+#include <dspbridge/cod.h>
+#include <dspbridge/drv.h>
+#include <dspbridge/proc.h>
+#include <dspbridge/dmm.h>
+
+/* ----------------------------------- Resource Manager */
+#include <dspbridge/mgr.h>
+#include <dspbridge/node.h>
+
+/* ----------------------------------- Others */
+#include <dspbridge/dspapi.h> /* DSP API version info. */
+
+#include <dspbridge/chnl.h>
+#include <dspbridge/io.h>
+#include <dspbridge/msg.h>
+#include <dspbridge/cmm.h>
+
+/* ----------------------------------- This */
+#include <dspbridge/dev.h>
+
+/* ----------------------------------- Defines, Data Structures, Typedefs */
+
+#define MAKEVERSION(major, minor) (major * 10 + minor)
+#define BRD_API_VERSION MAKEVERSION(BRD_API_MAJOR_VERSION, \
+ BRD_API_MINOR_VERSION)
+
+/* The Bridge device object: */
+struct dev_object {
+ /* LST requires "link" to be first field! */
+ struct list_head link; /* Link to next dev_object. */
+ u8 dev_type; /* Device Type */
+ struct cfg_devnode *dev_node_obj; /* Platform specific dev id */
+ /* Bridge Context Handle */
+ struct bridge_dev_context *hbridge_context;
+ /* Function interface to Bridge driver. */
+ struct bridge_drv_interface bridge_interface;
+ struct brd_object *lock_owner; /* Client with exclusive access. */
+ struct cod_manager *cod_mgr; /* Code manager handle. */
+ struct chnl_mgr *hchnl_mgr; /* Channel manager. */
+ struct deh_mgr *hdeh_mgr; /* DEH manager. */
+ struct msg_mgr *hmsg_mgr; /* Message manager. */
+ struct io_mgr *hio_mgr; /* IO manager (CHNL, msg_ctrl) */
+ struct cmm_object *hcmm_mgr; /* SM memory manager. */
+ struct dmm_object *dmm_mgr; /* Dynamic memory manager. */
+ struct ldr_module *module_obj; /* Bridge Module handle. */
+ u32 word_size; /* DSP word size: quick access. */
+ struct drv_object *hdrv_obj; /* Driver Object */
+ struct lst_list *proc_list; /* List of Proceeosr attached to
+ * this device */
+ struct node_mgr *hnode_mgr;
+};
+
+/* ----------------------------------- Globals */
+static u32 refs; /* Module reference count */
+
+/* ----------------------------------- Function Prototypes */
+static int fxn_not_implemented(int arg, ...);
+static int init_cod_mgr(struct dev_object *dev_obj);
+static void store_interface_fxns(struct bridge_drv_interface *drv_fxns,
+ OUT struct bridge_drv_interface *intf_fxns);
+/*
+ * ======== dev_brd_write_fxn ========
+ * Purpose:
+ * Exported function to be used as the COD write function. This function
+ * is passed a handle to a DEV_hObject, then calls the
+ * device's bridge_brd_write() function.
+ */
+u32 dev_brd_write_fxn(void *pArb, u32 ulDspAddr, void *pHostBuf,
+ u32 ul_num_bytes, u32 nMemSpace)
+{
+ struct dev_object *dev_obj = (struct dev_object *)pArb;
+ u32 ul_written = 0;
+ int status;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(pHostBuf != NULL); /* Required of BrdWrite(). */
+ if (dev_obj) {
+ /* Require of BrdWrite() */
+ DBC_ASSERT(dev_obj->hbridge_context != NULL);
+ status = (*dev_obj->bridge_interface.pfn_brd_write) (
+ dev_obj->hbridge_context, pHostBuf,
+ ulDspAddr, ul_num_bytes, nMemSpace);
+ /* Special case of getting the address only */
+ if (ul_num_bytes == 0)
+ ul_num_bytes = 1;
+ if (DSP_SUCCEEDED(status))
+ ul_written = ul_num_bytes;
+
+ }
+ return ul_written;
+}
+
+/*
+ * ======== dev_create_device ========
+ * Purpose:
+ * Called by the operating system to load the PM Bridge Driver for a
+ * PM board (device).
+ */
+int dev_create_device(OUT struct dev_object **phDevObject,
+ IN CONST char *driver_file_name,
+ struct cfg_devnode *dev_node_obj)
+{
+ struct cfg_hostres *host_res;
+ struct ldr_module *module_obj = NULL;
+ struct bridge_drv_interface *drv_fxns = NULL;
+ struct dev_object *dev_obj = NULL;
+ struct chnl_mgrattrs mgr_attrs;
+ struct io_attrs io_mgr_attrs;
+ u32 num_windows;
+ struct drv_object *hdrv_obj = NULL;
+ int status = 0;
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phDevObject != NULL);
+ DBC_REQUIRE(driver_file_name != NULL);
+
+ status = drv_request_bridge_res_dsp((void *)&host_res);
+
+ if (DSP_FAILED(status)) {
+ dev_dbg(bridge, "%s: Failed to reserve bridge resources\n",
+ __func__);
+ goto leave;
+ }
+
+ /* Get the Bridge driver interface functions */
+ bridge_drv_entry(&drv_fxns, driver_file_name);
+ if (DSP_FAILED(cfg_get_object((u32 *) &hdrv_obj, REG_DRV_OBJECT))) {
+ /* don't propogate CFG errors from this PROC function */
+ status = -EPERM;
+ }
+ /* Create the device object, and pass a handle to the Bridge driver for
+ * storage. */
+ if (DSP_SUCCEEDED(status)) {
+ DBC_ASSERT(drv_fxns);
+ dev_obj = kzalloc(sizeof(struct dev_object), GFP_KERNEL);
+ if (dev_obj) {
+ /* Fill out the rest of the Dev Object structure: */
+ dev_obj->dev_node_obj = dev_node_obj;
+ dev_obj->module_obj = module_obj;
+ dev_obj->cod_mgr = NULL;
+ dev_obj->hchnl_mgr = NULL;
+ dev_obj->hdeh_mgr = NULL;
+ dev_obj->lock_owner = NULL;
+ dev_obj->word_size = DSPWORDSIZE;
+ dev_obj->hdrv_obj = hdrv_obj;
+ dev_obj->dev_type = DSP_UNIT;
+ /* Store this Bridge's interface functions, based on its
+ * version. */
+ store_interface_fxns(drv_fxns,
+ &dev_obj->bridge_interface);
+
+ /* Call fxn_dev_create() to get the Bridge's device
+ * context handle. */
+ status = (dev_obj->bridge_interface.pfn_dev_create)
+ (&dev_obj->hbridge_context, dev_obj,
+ host_res);
+ /* Assert bridge_dev_create()'s ensure clause: */
+ DBC_ASSERT(DSP_FAILED(status)
+ || (dev_obj->hbridge_context != NULL));
+ } else {
+ status = -ENOMEM;
+ }
+ }
+ /* Attempt to create the COD manager for this device: */
+ if (DSP_SUCCEEDED(status))
+ status = init_cod_mgr(dev_obj);
+
+ /* Attempt to create the channel manager for this device: */
+ if (DSP_SUCCEEDED(status)) {
+ mgr_attrs.max_channels = CHNL_MAXCHANNELS;
+ io_mgr_attrs.birq = host_res->birq_registers;
+ io_mgr_attrs.irq_shared =
+ (host_res->birq_attrib & CFG_IRQSHARED);
+ io_mgr_attrs.word_size = DSPWORDSIZE;
+ mgr_attrs.word_size = DSPWORDSIZE;
+ num_windows = host_res->num_mem_windows;
+ if (num_windows) {
+ /* Assume last memory window is for CHNL */
+ io_mgr_attrs.shm_base = host_res->dw_mem_base[1] +
+ host_res->dw_offset_for_monitor;
+ io_mgr_attrs.usm_length =
+ host_res->dw_mem_length[1] -
+ host_res->dw_offset_for_monitor;
+ } else {
+ io_mgr_attrs.shm_base = 0;
+ io_mgr_attrs.usm_length = 0;
+ pr_err("%s: No memory reserved for shared structures\n",
+ __func__);
+ }
+ status = chnl_create(&dev_obj->hchnl_mgr, dev_obj, &mgr_attrs);
+ if (status == -ENOSYS) {
+ /* It's OK for a device not to have a channel
+ * manager: */
+ status = 0;
+ }
+ /* Create CMM mgr even if Msg Mgr not impl. */
+ status = cmm_create(&dev_obj->hcmm_mgr,
+ (struct dev_object *)dev_obj, NULL);
+ /* Only create IO manager if we have a channel manager */
+ if (DSP_SUCCEEDED(status) && dev_obj->hchnl_mgr) {
+ status = io_create(&dev_obj->hio_mgr, dev_obj,
+ &io_mgr_attrs);
+ }
+ /* Only create DEH manager if we have an IO manager */
+ if (DSP_SUCCEEDED(status)) {
+ /* Instantiate the DEH module */
+ status = (*dev_obj->bridge_interface.pfn_deh_create)
+ (&dev_obj->hdeh_mgr, dev_obj);
+ }
+ /* Create DMM mgr . */
+ status = dmm_create(&dev_obj->dmm_mgr,
+ (struct dev_object *)dev_obj, NULL);
+ }
+ /* Add the new DEV_Object to the global list: */
+ if (DSP_SUCCEEDED(status)) {
+ lst_init_elem(&dev_obj->link);
+ status = drv_insert_dev_object(hdrv_obj, dev_obj);
+ }
+ /* Create the Processor List */
+ if (DSP_SUCCEEDED(status)) {
+ dev_obj->proc_list = kzalloc(sizeof(struct lst_list),
+ GFP_KERNEL);
+ if (!(dev_obj->proc_list))
+ status = -EPERM;
+ else
+ INIT_LIST_HEAD(&dev_obj->proc_list->head);
+ }
+leave:
+ /* If all went well, return a handle to the dev object;
+ * else, cleanup and return NULL in the OUT parameter. */
+ if (DSP_SUCCEEDED(status)) {
+ *phDevObject = dev_obj;
+ } else {
+ if (dev_obj) {
+ kfree(dev_obj->proc_list);
+ if (dev_obj->cod_mgr)
+ cod_delete(dev_obj->cod_mgr);
+ if (dev_obj->dmm_mgr)
+ dmm_destroy(dev_obj->dmm_mgr);
+ kfree(dev_obj);
+ }
+
+ *phDevObject = NULL;
+ }
+
+ DBC_ENSURE((DSP_SUCCEEDED(status) && *phDevObject) ||
+ (DSP_FAILED(status) && !*phDevObject));
+ return status;
+}
+
+/*
+ * ======== dev_create2 ========
+ * Purpose:
+ * After successful loading of the image from api_init_complete2
+ * (PROC Auto_Start) or proc_load this fxn is called. This creates
+ * the Node Manager and updates the DEV Object.
+ */
+int dev_create2(struct dev_object *hdev_obj)
+{
+ int status = 0;
+ struct dev_object *dev_obj = hdev_obj;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(hdev_obj);
+
+ /* There can be only one Node Manager per DEV object */
+ DBC_ASSERT(!dev_obj->hnode_mgr);
+ status = node_create_mgr(&dev_obj->hnode_mgr, hdev_obj);
+ if (DSP_FAILED(status))
+ dev_obj->hnode_mgr = NULL;
+
+ DBC_ENSURE((DSP_SUCCEEDED(status) && dev_obj->hnode_mgr != NULL)
+ || (DSP_FAILED(status) && dev_obj->hnode_mgr == NULL));
+ return status;
+}
+
+/*
+ * ======== dev_destroy2 ========
+ * Purpose:
+ * Destroys the Node manager for this device.
+ */
+int dev_destroy2(struct dev_object *hdev_obj)
+{
+ int status = 0;
+ struct dev_object *dev_obj = hdev_obj;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(hdev_obj);
+
+ if (dev_obj->hnode_mgr) {
+ if (DSP_FAILED(node_delete_mgr(dev_obj->hnode_mgr)))
+ status = -EPERM;
+ else
+ dev_obj->hnode_mgr = NULL;
+
+ }
+
+ DBC_ENSURE((DSP_SUCCEEDED(status) && dev_obj->hnode_mgr == NULL) ||
+ DSP_FAILED(status));
+ return status;
+}
+
+/*
+ * ======== dev_destroy_device ========
+ * Purpose:
+ * Destroys the channel manager for this device, if any, calls
+ * bridge_dev_destroy(), and then attempts to unload the Bridge module.
+ */
+int dev_destroy_device(struct dev_object *hdev_obj)
+{
+ int status = 0;
+ struct dev_object *dev_obj = hdev_obj;
+
+ DBC_REQUIRE(refs > 0);
+
+ if (hdev_obj) {
+ if (dev_obj->cod_mgr) {
+ cod_delete(dev_obj->cod_mgr);
+ dev_obj->cod_mgr = NULL;
+ }
+
+ if (dev_obj->hnode_mgr) {
+ node_delete_mgr(dev_obj->hnode_mgr);
+ dev_obj->hnode_mgr = NULL;
+ }
+
+ /* Free the io, channel, and message managers for this board: */
+ if (dev_obj->hio_mgr) {
+ io_destroy(dev_obj->hio_mgr);
+ dev_obj->hio_mgr = NULL;
+ }
+ if (dev_obj->hchnl_mgr) {
+ chnl_destroy(dev_obj->hchnl_mgr);
+ dev_obj->hchnl_mgr = NULL;
+ }
+ if (dev_obj->hmsg_mgr) {
+ msg_delete(dev_obj->hmsg_mgr);
+ dev_obj->hmsg_mgr = NULL;
+ }
+
+ if (dev_obj->hdeh_mgr) {
+ /* Uninitialize DEH module. */
+ (*dev_obj->bridge_interface.pfn_deh_destroy)
+ (dev_obj->hdeh_mgr);
+ dev_obj->hdeh_mgr = NULL;
+ }
+ if (dev_obj->hcmm_mgr) {
+ cmm_destroy(dev_obj->hcmm_mgr, true);
+ dev_obj->hcmm_mgr = NULL;
+ }
+
+ if (dev_obj->dmm_mgr) {
+ dmm_destroy(dev_obj->dmm_mgr);
+ dev_obj->dmm_mgr = NULL;
+ }
+
+ /* Call the driver's bridge_dev_destroy() function: */
+ /* Require of DevDestroy */
+ if (dev_obj->hbridge_context) {
+ status = (*dev_obj->bridge_interface.pfn_dev_destroy)
+ (dev_obj->hbridge_context);
+ dev_obj->hbridge_context = NULL;
+ } else
+ status = -EPERM;
+ if (DSP_SUCCEEDED(status)) {
+ kfree(dev_obj->proc_list);
+ dev_obj->proc_list = NULL;
+
+ /* Remove this DEV_Object from the global list: */
+ drv_remove_dev_object(dev_obj->hdrv_obj, dev_obj);
+ /* Free The library * LDR_FreeModule
+ * (dev_obj->module_obj); */
+ /* Free this dev object: */
+ kfree(dev_obj);
+ dev_obj = NULL;
+ }
+ } else {
+ status = -EFAULT;
+ }
+
+ return status;
+}
+
+/*
+ * ======== dev_get_chnl_mgr ========
+ * Purpose:
+ * Retrieve the handle to the channel manager handle created for this
+ * device.
+ */
+int dev_get_chnl_mgr(struct dev_object *hdev_obj,
+ OUT struct chnl_mgr **phMgr)
+{
+ int status = 0;
+ struct dev_object *dev_obj = hdev_obj;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phMgr != NULL);
+
+ if (hdev_obj) {
+ *phMgr = dev_obj->hchnl_mgr;
+ } else {
+ *phMgr = NULL;
+ status = -EFAULT;
+ }
+
+ DBC_ENSURE(DSP_SUCCEEDED(status) || ((phMgr != NULL) &&
+ (*phMgr == NULL)));
+ return status;
+}
+
+/*
+ * ======== dev_get_cmm_mgr ========
+ * Purpose:
+ * Retrieve the handle to the shared memory manager created for this
+ * device.
+ */
+int dev_get_cmm_mgr(struct dev_object *hdev_obj,
+ OUT struct cmm_object **phMgr)
+{
+ int status = 0;
+ struct dev_object *dev_obj = hdev_obj;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phMgr != NULL);
+
+ if (hdev_obj) {
+ *phMgr = dev_obj->hcmm_mgr;
+ } else {
+ *phMgr = NULL;
+ status = -EFAULT;
+ }
+
+ DBC_ENSURE(DSP_SUCCEEDED(status) || ((phMgr != NULL) &&
+ (*phMgr == NULL)));
+ return status;
+}
+
+/*
+ * ======== dev_get_dmm_mgr ========
+ * Purpose:
+ * Retrieve the handle to the dynamic memory manager created for this
+ * device.
+ */
+int dev_get_dmm_mgr(struct dev_object *hdev_obj,
+ OUT struct dmm_object **phMgr)
+{
+ int status = 0;
+ struct dev_object *dev_obj = hdev_obj;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phMgr != NULL);
+
+ if (hdev_obj) {
+ *phMgr = dev_obj->dmm_mgr;
+ } else {
+ *phMgr = NULL;
+ status = -EFAULT;
+ }
+
+ DBC_ENSURE(DSP_SUCCEEDED(status) || ((phMgr != NULL) &&
+ (*phMgr == NULL)));
+ return status;
+}
+
+/*
+ * ======== dev_get_cod_mgr ========
+ * Purpose:
+ * Retrieve the COD manager create for this device.
+ */
+int dev_get_cod_mgr(struct dev_object *hdev_obj,
+ OUT struct cod_manager **phCodMgr)
+{
+ int status = 0;
+ struct dev_object *dev_obj = hdev_obj;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phCodMgr != NULL);
+
+ if (hdev_obj) {
+ *phCodMgr = dev_obj->cod_mgr;
+ } else {
+ *phCodMgr = NULL;
+ status = -EFAULT;
+ }
+
+ DBC_ENSURE(DSP_SUCCEEDED(status) || ((phCodMgr != NULL) &&
+ (*phCodMgr == NULL)));
+ return status;
+}
+
+/*
+ * ========= dev_get_deh_mgr ========
+ */
+int dev_get_deh_mgr(struct dev_object *hdev_obj,
+ OUT struct deh_mgr **phDehMgr)
+{
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phDehMgr != NULL);
+ DBC_REQUIRE(hdev_obj);
+ if (hdev_obj) {
+ *phDehMgr = hdev_obj->hdeh_mgr;
+ } else {
+ *phDehMgr = NULL;
+ status = -EFAULT;
+ }
+ return status;
+}
+
+/*
+ * ======== dev_get_dev_node ========
+ * Purpose:
+ * Retrieve the platform specific device ID for this device.
+ */
+int dev_get_dev_node(struct dev_object *hdev_obj,
+ OUT struct cfg_devnode **phDevNode)
+{
+ int status = 0;
+ struct dev_object *dev_obj = hdev_obj;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phDevNode != NULL);
+
+ if (hdev_obj) {
+ *phDevNode = dev_obj->dev_node_obj;
+ } else {
+ *phDevNode = NULL;
+ status = -EFAULT;
+ }
+
+ DBC_ENSURE(DSP_SUCCEEDED(status) || ((phDevNode != NULL) &&
+ (*phDevNode == NULL)));
+ return status;
+}
+
+/*
+ * ======== dev_get_first ========
+ * Purpose:
+ * Retrieve the first Device Object handle from an internal linked list
+ * DEV_OBJECTs maintained by DEV.
+ */
+struct dev_object *dev_get_first(void)
+{
+ struct dev_object *dev_obj = NULL;
+
+ dev_obj = (struct dev_object *)drv_get_first_dev_object();
+
+ return dev_obj;
+}
+
+/*
+ * ======== dev_get_intf_fxns ========
+ * Purpose:
+ * Retrieve the Bridge interface function structure for the loaded driver.
+ * ppIntfFxns != NULL.
+ */
+int dev_get_intf_fxns(struct dev_object *hdev_obj,
+ OUT struct bridge_drv_interface **ppIntfFxns)
+{
+ int status = 0;
+ struct dev_object *dev_obj = hdev_obj;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(ppIntfFxns != NULL);
+
+ if (hdev_obj) {
+ *ppIntfFxns = &dev_obj->bridge_interface;
+ } else {
+ *ppIntfFxns = NULL;
+ status = -EFAULT;
+ }
+
+ DBC_ENSURE(DSP_SUCCEEDED(status) || ((ppIntfFxns != NULL) &&
+ (*ppIntfFxns == NULL)));
+ return status;
+}
+
+/*
+ * ========= dev_get_io_mgr ========
+ */
+int dev_get_io_mgr(struct dev_object *hdev_obj,
+ OUT struct io_mgr **phIOMgr)
+{
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phIOMgr != NULL);
+ DBC_REQUIRE(hdev_obj);
+
+ if (hdev_obj) {
+ *phIOMgr = hdev_obj->hio_mgr;
+ } else {
+ *phIOMgr = NULL;
+ status = -EFAULT;
+ }
+
+ return status;
+}
+
+/*
+ * ======== dev_get_next ========
+ * Purpose:
+ * Retrieve the next Device Object handle from an internal linked list
+ * of DEV_OBJECTs maintained by DEV, after having previously called
+ * dev_get_first() and zero or more dev_get_next
+ */
+struct dev_object *dev_get_next(struct dev_object *hdev_obj)
+{
+ struct dev_object *next_dev_object = NULL;
+
+ if (hdev_obj) {
+ next_dev_object = (struct dev_object *)
+ drv_get_next_dev_object((u32) hdev_obj);
+ }
+
+ return next_dev_object;
+}
+
+/*
+ * ========= dev_get_msg_mgr ========
+ */
+void dev_get_msg_mgr(struct dev_object *hdev_obj, OUT struct msg_mgr **phMsgMgr)
+{
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phMsgMgr != NULL);
+ DBC_REQUIRE(hdev_obj);
+
+ *phMsgMgr = hdev_obj->hmsg_mgr;
+}
+
+/*
+ * ======== dev_get_node_manager ========
+ * Purpose:
+ * Retrieve the Node Manager Handle
+ */
+int dev_get_node_manager(struct dev_object *hdev_obj,
+ OUT struct node_mgr **phNodeMgr)
+{
+ int status = 0;
+ struct dev_object *dev_obj = hdev_obj;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phNodeMgr != NULL);
+
+ if (hdev_obj) {
+ *phNodeMgr = dev_obj->hnode_mgr;
+ } else {
+ *phNodeMgr = NULL;
+ status = -EFAULT;
+ }
+
+ DBC_ENSURE(DSP_SUCCEEDED(status) || ((phNodeMgr != NULL) &&
+ (*phNodeMgr == NULL)));
+ return status;
+}
+
+/*
+ * ======== dev_get_symbol ========
+ */
+int dev_get_symbol(struct dev_object *hdev_obj,
+ IN CONST char *pstrSym, OUT u32 * pul_value)
+{
+ int status = 0;
+ struct cod_manager *cod_mgr;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(pstrSym != NULL && pul_value != NULL);
+
+ if (hdev_obj) {
+ status = dev_get_cod_mgr(hdev_obj, &cod_mgr);
+ if (cod_mgr)
+ status = cod_get_sym_value(cod_mgr, (char *)pstrSym,
+ pul_value);
+ else
+ status = -EFAULT;
+ }
+
+ return status;
+}
+
+/*
+ * ======== dev_get_bridge_context ========
+ * Purpose:
+ * Retrieve the Bridge Context handle, as returned by the
+ * bridge_dev_create fxn.
+ */
+int dev_get_bridge_context(struct dev_object *hdev_obj,
+ OUT struct bridge_dev_context **phbridge_context)
+{
+ int status = 0;
+ struct dev_object *dev_obj = hdev_obj;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phbridge_context != NULL);
+
+ if (hdev_obj) {
+ *phbridge_context = dev_obj->hbridge_context;
+ } else {
+ *phbridge_context = NULL;
+ status = -EFAULT;
+ }
+
+ DBC_ENSURE(DSP_SUCCEEDED(status) || ((phbridge_context != NULL) &&
+ (*phbridge_context == NULL)));
+ return status;
+}
+
+/*
+ * ======== dev_exit ========
+ * Purpose:
+ * Decrement reference count, and free resources when reference count is
+ * 0.
+ */
+void dev_exit(void)
+{
+ DBC_REQUIRE(refs > 0);
+
+ refs--;
+
+ if (refs == 0) {
+ cmm_exit();
+ dmm_exit();
+ }
+
+ DBC_ENSURE(refs >= 0);
+}
+
+/*
+ * ======== dev_init ========
+ * Purpose:
+ * Initialize DEV's private state, keeping a reference count on each call.
+ */
+bool dev_init(void)
+{
+ bool cmm_ret, dmm_ret, ret = true;
+
+ DBC_REQUIRE(refs >= 0);
+
+ if (refs == 0) {
+ cmm_ret = cmm_init();
+ dmm_ret = dmm_init();
+
+ ret = cmm_ret && dmm_ret;
+
+ if (!ret) {
+ if (cmm_ret)
+ cmm_exit();
+
+ if (dmm_ret)
+ dmm_exit();
+
+ }
+ }
+
+ if (ret)
+ refs++;
+
+ DBC_ENSURE((ret && (refs > 0)) || (!ret && (refs >= 0)));
+
+ return ret;
+}
+
+/*
+ * ======== dev_notify_clients ========
+ * Purpose:
+ * Notify all clients of this device of a change in device status.
+ */
+int dev_notify_clients(struct dev_object *hdev_obj, u32 ulStatus)
+{
+ int status = 0;
+
+ struct dev_object *dev_obj = hdev_obj;
+ void *proc_obj;
+
+ for (proc_obj = (void *)lst_first(dev_obj->proc_list);
+ proc_obj != NULL;
+ proc_obj = (void *)lst_next(dev_obj->proc_list,
+ (struct list_head *)proc_obj))
+ proc_notify_clients(proc_obj, (u32) ulStatus);
+
+ return status;
+}
+
+/*
+ * ======== dev_remove_device ========
+ */
+int dev_remove_device(struct cfg_devnode *dev_node_obj)
+{
+ struct dev_object *hdev_obj; /* handle to device object */
+ int status = 0;
+ struct dev_object *dev_obj;
+
+ /* Retrieve the device object handle originaly stored with
+ * the dev_node: */
+ status = cfg_get_dev_object(dev_node_obj, (u32 *) &hdev_obj);
+ if (DSP_SUCCEEDED(status)) {
+ /* Remove the Processor List */
+ dev_obj = (struct dev_object *)hdev_obj;
+ /* Destroy the device object. */
+ status = dev_destroy_device(hdev_obj);
+ }
+
+ return status;
+}
+
+/*
+ * ======== dev_set_chnl_mgr ========
+ * Purpose:
+ * Set the channel manager for this device.
+ */
+int dev_set_chnl_mgr(struct dev_object *hdev_obj,
+ struct chnl_mgr *hmgr)
+{
+ int status = 0;
+ struct dev_object *dev_obj = hdev_obj;
+
+ DBC_REQUIRE(refs > 0);
+
+ if (hdev_obj)
+ dev_obj->hchnl_mgr = hmgr;
+ else
+ status = -EFAULT;
+
+ DBC_ENSURE(DSP_FAILED(status) || (dev_obj->hchnl_mgr == hmgr));
+ return status;
+}
+
+/*
+ * ======== dev_set_msg_mgr ========
+ * Purpose:
+ * Set the message manager for this device.
+ */
+void dev_set_msg_mgr(struct dev_object *hdev_obj, struct msg_mgr *hmgr)
+{
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(hdev_obj);
+
+ hdev_obj->hmsg_mgr = hmgr;
+}
+
+/*
+ * ======== dev_start_device ========
+ * Purpose:
+ * Initializes the new device with the BRIDGE environment.
+ */
+int dev_start_device(struct cfg_devnode *dev_node_obj)
+{
+ struct dev_object *hdev_obj = NULL; /* handle to 'Bridge Device */
+ /* Bridge driver filename */
+ char bridge_file_name[CFG_MAXSEARCHPATHLEN] = "UMA";
+ int status;
+ struct mgr_object *hmgr_obj = NULL;
+
+ DBC_REQUIRE(refs > 0);
+
+ /* Given all resources, create a device object. */
+ status = dev_create_device(&hdev_obj, bridge_file_name,
+ dev_node_obj);
+ if (DSP_SUCCEEDED(status)) {
+ /* Store away the hdev_obj with the DEVNODE */
+ status = cfg_set_dev_object(dev_node_obj, (u32) hdev_obj);
+ if (DSP_FAILED(status)) {
+ /* Clean up */
+ dev_destroy_device(hdev_obj);
+ hdev_obj = NULL;
+ }
+ }
+ if (DSP_SUCCEEDED(status)) {
+ /* Create the Manager Object */
+ status = mgr_create(&hmgr_obj, dev_node_obj);
+ }
+ if (DSP_FAILED(status)) {
+ if (hdev_obj)
+ dev_destroy_device(hdev_obj);
+
+ /* Ensure the device extension is NULL */
+ cfg_set_dev_object(dev_node_obj, 0L);
+ }
+
+ return status;
+}
+
+/*
+ * ======== fxn_not_implemented ========
+ * Purpose:
+ * Takes the place of a Bridge Null Function.
+ * Parameters:
+ * Multiple, optional.
+ * Returns:
+ * -ENOSYS: Always.
+ */
+static int fxn_not_implemented(int arg, ...)
+{
+ return -ENOSYS;
+}
+
+/*
+ * ======== init_cod_mgr ========
+ * Purpose:
+ * Create a COD manager for this device.
+ * Parameters:
+ * dev_obj: Pointer to device object created with
+ * dev_create_device()
+ * Returns:
+ * 0: Success.
+ * -EFAULT: Invalid hdev_obj.
+ * Requires:
+ * Should only be called once by dev_create_device() for a given DevObject.
+ * Ensures:
+ */
+static int init_cod_mgr(struct dev_object *dev_obj)
+{
+ int status = 0;
+ char *sz_dummy_file = "dummy";
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(!dev_obj || (dev_obj->cod_mgr == NULL));
+
+ status = cod_create(&dev_obj->cod_mgr, sz_dummy_file, NULL);
+
+ return status;
+}
+
+/*
+ * ======== dev_insert_proc_object ========
+ * Purpose:
+ * Insert a ProcObject into the list maintained by DEV.
+ * Parameters:
+ * p_proc_object: Ptr to ProcObject to insert.
+ * dev_obj: Ptr to Dev Object where the list is.
+ * pbAlreadyAttached: Ptr to return the bool
+ * Returns:
+ * 0: If successful.
+ * Requires:
+ * List Exists
+ * hdev_obj is Valid handle
+ * DEV Initialized
+ * pbAlreadyAttached != NULL
+ * proc_obj != 0
+ * Ensures:
+ * 0 and List is not Empty.
+ */
+int dev_insert_proc_object(struct dev_object *hdev_obj,
+ u32 proc_obj, OUT bool *pbAlreadyAttached)
+{
+ int status = 0;
+ struct dev_object *dev_obj = (struct dev_object *)hdev_obj;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(dev_obj);
+ DBC_REQUIRE(proc_obj != 0);
+ DBC_REQUIRE(dev_obj->proc_list != NULL);
+ DBC_REQUIRE(pbAlreadyAttached != NULL);
+ if (!LST_IS_EMPTY(dev_obj->proc_list))
+ *pbAlreadyAttached = true;
+
+ /* Add DevObject to tail. */
+ lst_put_tail(dev_obj->proc_list, (struct list_head *)proc_obj);
+
+ DBC_ENSURE(DSP_SUCCEEDED(status) && !LST_IS_EMPTY(dev_obj->proc_list));
+
+ return status;
+}
+
+/*
+ * ======== dev_remove_proc_object ========
+ * Purpose:
+ * Search for and remove a Proc object from the given list maintained
+ * by the DEV
+ * Parameters:
+ * p_proc_object: Ptr to ProcObject to insert.
+ * dev_obj Ptr to Dev Object where the list is.
+ * Returns:
+ * 0: If successful.
+ * Requires:
+ * List exists and is not empty
+ * proc_obj != 0
+ * hdev_obj is a valid Dev handle.
+ * Ensures:
+ * Details:
+ * List will be deleted when the DEV is destroyed.
+ */
+int dev_remove_proc_object(struct dev_object *hdev_obj, u32 proc_obj)
+{
+ int status = -EPERM;
+ struct list_head *cur_elem;
+ struct dev_object *dev_obj = (struct dev_object *)hdev_obj;
+
+ DBC_REQUIRE(dev_obj);
+ DBC_REQUIRE(proc_obj != 0);
+ DBC_REQUIRE(dev_obj->proc_list != NULL);
+ DBC_REQUIRE(!LST_IS_EMPTY(dev_obj->proc_list));
+
+ /* Search list for dev_obj: */
+ for (cur_elem = lst_first(dev_obj->proc_list); cur_elem != NULL;
+ cur_elem = lst_next(dev_obj->proc_list, cur_elem)) {
+ /* If found, remove it. */
+ if ((u32) cur_elem == proc_obj) {
+ lst_remove_elem(dev_obj->proc_list, cur_elem);
+ status = 0;
+ break;
+ }
+ }
+
+ return status;
+}
+
+int dev_get_dev_type(struct dev_object *hdevObject, u8 *dev_type)
+{
+ int status = 0;
+ struct dev_object *dev_obj = (struct dev_object *)hdevObject;
+
+ *dev_type = dev_obj->dev_type;
+
+ return status;
+}
+
+/*
+ * ======== store_interface_fxns ========
+ * Purpose:
+ * Copy the Bridge's interface functions into the device object,
+ * ensuring that fxn_not_implemented() is set for:
+ *
+ * 1. All Bridge function pointers which are NULL; and
+ * 2. All function slots in the struct dev_object structure which have no
+ * corresponding slots in the the Bridge's interface, because the Bridge
+ * is of an *older* version.
+ * Parameters:
+ * intf_fxns: Interface fxn Structure of the Bridge's Dev Object.
+ * drv_fxns: Interface Fxns offered by the Bridge during DEV_Create().
+ * Returns:
+ * Requires:
+ * Input pointers are valid.
+ * Bridge driver is *not* written for a newer DSP API.
+ * Ensures:
+ * All function pointers in the dev object's fxn interface are not NULL.
+ */
+static void store_interface_fxns(struct bridge_drv_interface *drv_fxns,
+ OUT struct bridge_drv_interface *intf_fxns)
+{
+ u32 bridge_version;
+
+ /* Local helper macro: */
+#define STORE_FXN(cast, pfn) \
+ (intf_fxns->pfn = ((drv_fxns->pfn != NULL) ? drv_fxns->pfn : \
+ (cast)fxn_not_implemented))
+
+ DBC_REQUIRE(intf_fxns != NULL);
+ DBC_REQUIRE(drv_fxns != NULL);
+ DBC_REQUIRE(MAKEVERSION(drv_fxns->brd_api_major_version,
+ drv_fxns->brd_api_minor_version) <= BRD_API_VERSION);
+ bridge_version = MAKEVERSION(drv_fxns->brd_api_major_version,
+ drv_fxns->brd_api_minor_version);
+ intf_fxns->brd_api_major_version = drv_fxns->brd_api_major_version;
+ intf_fxns->brd_api_minor_version = drv_fxns->brd_api_minor_version;
+ /* Install functions up to DSP API version .80 (first alpha): */
+ if (bridge_version > 0) {
+ STORE_FXN(fxn_dev_create, pfn_dev_create);
+ STORE_FXN(fxn_dev_destroy, pfn_dev_destroy);
+ STORE_FXN(fxn_dev_ctrl, pfn_dev_cntrl);
+ STORE_FXN(fxn_brd_monitor, pfn_brd_monitor);
+ STORE_FXN(fxn_brd_start, pfn_brd_start);
+ STORE_FXN(fxn_brd_stop, pfn_brd_stop);
+ STORE_FXN(fxn_brd_status, pfn_brd_status);
+ STORE_FXN(fxn_brd_read, pfn_brd_read);
+ STORE_FXN(fxn_brd_write, pfn_brd_write);
+ STORE_FXN(fxn_brd_setstate, pfn_brd_set_state);
+ STORE_FXN(fxn_brd_memcopy, pfn_brd_mem_copy);
+ STORE_FXN(fxn_brd_memwrite, pfn_brd_mem_write);
+ STORE_FXN(fxn_brd_memmap, pfn_brd_mem_map);
+ STORE_FXN(fxn_brd_memunmap, pfn_brd_mem_un_map);
+ STORE_FXN(fxn_chnl_create, pfn_chnl_create);
+ STORE_FXN(fxn_chnl_destroy, pfn_chnl_destroy);
+ STORE_FXN(fxn_chnl_open, pfn_chnl_open);
+ STORE_FXN(fxn_chnl_close, pfn_chnl_close);
+ STORE_FXN(fxn_chnl_addioreq, pfn_chnl_add_io_req);
+ STORE_FXN(fxn_chnl_getioc, pfn_chnl_get_ioc);
+ STORE_FXN(fxn_chnl_cancelio, pfn_chnl_cancel_io);
+ STORE_FXN(fxn_chnl_flushio, pfn_chnl_flush_io);
+ STORE_FXN(fxn_chnl_getinfo, pfn_chnl_get_info);
+ STORE_FXN(fxn_chnl_getmgrinfo, pfn_chnl_get_mgr_info);
+ STORE_FXN(fxn_chnl_idle, pfn_chnl_idle);
+ STORE_FXN(fxn_chnl_registernotify, pfn_chnl_register_notify);
+ STORE_FXN(fxn_deh_create, pfn_deh_create);
+ STORE_FXN(fxn_deh_destroy, pfn_deh_destroy);
+ STORE_FXN(fxn_deh_notify, pfn_deh_notify);
+ STORE_FXN(fxn_deh_registernotify, pfn_deh_register_notify);
+ STORE_FXN(fxn_deh_getinfo, pfn_deh_get_info);
+ STORE_FXN(fxn_io_create, pfn_io_create);
+ STORE_FXN(fxn_io_destroy, pfn_io_destroy);
+ STORE_FXN(fxn_io_onloaded, pfn_io_on_loaded);
+ STORE_FXN(fxn_io_getprocload, pfn_io_get_proc_load);
+ STORE_FXN(fxn_msg_create, pfn_msg_create);
+ STORE_FXN(fxn_msg_createqueue, pfn_msg_create_queue);
+ STORE_FXN(fxn_msg_delete, pfn_msg_delete);
+ STORE_FXN(fxn_msg_deletequeue, pfn_msg_delete_queue);
+ STORE_FXN(fxn_msg_get, pfn_msg_get);
+ STORE_FXN(fxn_msg_put, pfn_msg_put);
+ STORE_FXN(fxn_msg_registernotify, pfn_msg_register_notify);
+ STORE_FXN(fxn_msg_setqueueid, pfn_msg_set_queue_id);
+ }
+ /* Add code for any additional functions in newerBridge versions here */
+ /* Ensure postcondition: */
+ DBC_ENSURE(intf_fxns->pfn_dev_create != NULL);
+ DBC_ENSURE(intf_fxns->pfn_dev_destroy != NULL);
+ DBC_ENSURE(intf_fxns->pfn_dev_cntrl != NULL);
+ DBC_ENSURE(intf_fxns->pfn_brd_monitor != NULL);
+ DBC_ENSURE(intf_fxns->pfn_brd_start != NULL);
+ DBC_ENSURE(intf_fxns->pfn_brd_stop != NULL);
+ DBC_ENSURE(intf_fxns->pfn_brd_status != NULL);
+ DBC_ENSURE(intf_fxns->pfn_brd_read != NULL);
+ DBC_ENSURE(intf_fxns->pfn_brd_write != NULL);
+ DBC_ENSURE(intf_fxns->pfn_chnl_create != NULL);
+ DBC_ENSURE(intf_fxns->pfn_chnl_destroy != NULL);
+ DBC_ENSURE(intf_fxns->pfn_chnl_open != NULL);
+ DBC_ENSURE(intf_fxns->pfn_chnl_close != NULL);
+ DBC_ENSURE(intf_fxns->pfn_chnl_add_io_req != NULL);
+ DBC_ENSURE(intf_fxns->pfn_chnl_get_ioc != NULL);
+ DBC_ENSURE(intf_fxns->pfn_chnl_cancel_io != NULL);
+ DBC_ENSURE(intf_fxns->pfn_chnl_flush_io != NULL);
+ DBC_ENSURE(intf_fxns->pfn_chnl_get_info != NULL);
+ DBC_ENSURE(intf_fxns->pfn_chnl_get_mgr_info != NULL);
+ DBC_ENSURE(intf_fxns->pfn_chnl_idle != NULL);
+ DBC_ENSURE(intf_fxns->pfn_chnl_register_notify != NULL);
+ DBC_ENSURE(intf_fxns->pfn_deh_create != NULL);
+ DBC_ENSURE(intf_fxns->pfn_deh_destroy != NULL);
+ DBC_ENSURE(intf_fxns->pfn_deh_notify != NULL);
+ DBC_ENSURE(intf_fxns->pfn_deh_register_notify != NULL);
+ DBC_ENSURE(intf_fxns->pfn_deh_get_info != NULL);
+ DBC_ENSURE(intf_fxns->pfn_io_create != NULL);
+ DBC_ENSURE(intf_fxns->pfn_io_destroy != NULL);
+ DBC_ENSURE(intf_fxns->pfn_io_on_loaded != NULL);
+ DBC_ENSURE(intf_fxns->pfn_io_get_proc_load != NULL);
+ DBC_ENSURE(intf_fxns->pfn_msg_set_queue_id != NULL);
+
+#undef STORE_FXN
+}
--- /dev/null
+/*
+ * dmm.c
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * The Dynamic Memory Manager (DMM) module manages the DSP Virtual address
+ * space that can be directly mapped to any MPU buffer or memory region
+ *
+ * Notes:
+ * Region: Generic memory entitiy having a start address and a size
+ * Chunk: Reserved region
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/* ----------------------------------- Host OS */
+#include <dspbridge/host_os.h>
+
+/* ----------------------------------- DSP/BIOS Bridge */
+#include <dspbridge/std.h>
+#include <dspbridge/dbdefs.h>
+
+/* ----------------------------------- Trace & Debug */
+#include <dspbridge/dbc.h>
+
+/* ----------------------------------- OS Adaptation Layer */
+#include <dspbridge/sync.h>
+
+/* ----------------------------------- Platform Manager */
+#include <dspbridge/dev.h>
+#include <dspbridge/proc.h>
+
+/* ----------------------------------- This */
+#include <dspbridge/dmm.h>
+
+/* ----------------------------------- Defines, Data Structures, Typedefs */
+#define DMM_ADDR_VIRTUAL(a) \
+ (((struct map_page *)(a) - virtual_mapping_table) * PG_SIZE4K +\
+ dyn_mem_map_beg)
+#define DMM_ADDR_TO_INDEX(a) (((a) - dyn_mem_map_beg) / PG_SIZE4K)
+
+/* DMM Mgr */
+struct dmm_object {
+ /* Dmm Lock is used to serialize access mem manager for
+ * multi-threads. */
+ spinlock_t dmm_lock; /* Lock to access dmm mgr */
+};
+
+/* ----------------------------------- Globals */
+static u32 refs; /* module reference count */
+struct map_page {
+ u32 region_size:15;
+ u32 mapped_size:15;
+ u32 reserved:1;
+ u32 mapped:1;
+};
+
+/* Create the free list */
+static struct map_page *virtual_mapping_table;
+static u32 free_region; /* The index of free region */
+static u32 free_size;
+static u32 dyn_mem_map_beg; /* The Beginning of dynamic memory mapping */
+static u32 table_size; /* The size of virt and phys pages tables */
+
+/* ----------------------------------- Function Prototypes */
+static struct map_page *get_region(u32 addr);
+static struct map_page *get_free_region(u32 aSize);
+static struct map_page *get_mapped_region(u32 aAddr);
+
+/* ======== dmm_create_tables ========
+ * Purpose:
+ * Create table to hold the information of physical address
+ * the buffer pages that is passed by the user, and the table
+ * to hold the information of the virtual memory that is reserved
+ * for DSP.
+ */
+int dmm_create_tables(struct dmm_object *dmm_mgr, u32 addr, u32 size)
+{
+ struct dmm_object *dmm_obj = (struct dmm_object *)dmm_mgr;
+ int status = 0;
+
+ status = dmm_delete_tables(dmm_obj);
+ if (DSP_SUCCEEDED(status)) {
+ dyn_mem_map_beg = addr;
+ table_size = PG_ALIGN_HIGH(size, PG_SIZE4K) / PG_SIZE4K;
+ /* Create the free list */
+ virtual_mapping_table = __vmalloc(table_size *
+ sizeof(struct map_page), GFP_KERNEL |
+ __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL);
+ if (virtual_mapping_table == NULL)
+ status = -ENOMEM;
+ else {
+ /* On successful allocation,
+ * all entries are zero ('free') */
+ free_region = 0;
+ free_size = table_size * PG_SIZE4K;
+ virtual_mapping_table[0].region_size = table_size;
+ }
+ }
+
+ if (DSP_FAILED(status))
+ pr_err("%s: failure, status 0x%x\n", __func__, status);
+
+ return status;
+}
+
+/*
+ * ======== dmm_create ========
+ * Purpose:
+ * Create a dynamic memory manager object.
+ */
+int dmm_create(OUT struct dmm_object **phDmmMgr,
+ struct dev_object *hdev_obj,
+ IN CONST struct dmm_mgrattrs *pMgrAttrs)
+{
+ struct dmm_object *dmm_obj = NULL;
+ int status = 0;
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phDmmMgr != NULL);
+
+ *phDmmMgr = NULL;
+ /* create, zero, and tag a cmm mgr object */
+ dmm_obj = kzalloc(sizeof(struct dmm_object), GFP_KERNEL);
+ if (dmm_obj != NULL) {
+ spin_lock_init(&dmm_obj->dmm_lock);
+ *phDmmMgr = dmm_obj;
+ } else {
+ status = -ENOMEM;
+ }
+
+ return status;
+}
+
+/*
+ * ======== dmm_destroy ========
+ * Purpose:
+ * Release the communication memory manager resources.
+ */
+int dmm_destroy(struct dmm_object *dmm_mgr)
+{
+ struct dmm_object *dmm_obj = (struct dmm_object *)dmm_mgr;
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ if (dmm_mgr) {
+ status = dmm_delete_tables(dmm_obj);
+ if (DSP_SUCCEEDED(status))
+ kfree(dmm_obj);
+ } else
+ status = -EFAULT;
+
+ return status;
+}
+
+/*
+ * ======== dmm_delete_tables ========
+ * Purpose:
+ * Delete DMM Tables.
+ */
+int dmm_delete_tables(struct dmm_object *dmm_mgr)
+{
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ /* Delete all DMM tables */
+ if (dmm_mgr)
+ vfree(virtual_mapping_table);
+ else
+ status = -EFAULT;
+ return status;
+}
+
+/*
+ * ======== dmm_exit ========
+ * Purpose:
+ * Discontinue usage of module; free resources when reference count
+ * reaches 0.
+ */
+void dmm_exit(void)
+{
+ DBC_REQUIRE(refs > 0);
+
+ refs--;
+}
+
+/*
+ * ======== dmm_get_handle ========
+ * Purpose:
+ * Return the dynamic memory manager object for this device.
+ * This is typically called from the client process.
+ */
+int dmm_get_handle(void *hprocessor, OUT struct dmm_object **phDmmMgr)
+{
+ int status = 0;
+ struct dev_object *hdev_obj;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phDmmMgr != NULL);
+ if (hprocessor != NULL)
+ status = proc_get_dev_object(hprocessor, &hdev_obj);
+ else
+ hdev_obj = dev_get_first(); /* default */
+
+ if (DSP_SUCCEEDED(status))
+ status = dev_get_dmm_mgr(hdev_obj, phDmmMgr);
+
+ return status;
+}
+
+/*
+ * ======== dmm_init ========
+ * Purpose:
+ * Initializes private state of DMM module.
+ */
+bool dmm_init(void)
+{
+ bool ret = true;
+
+ DBC_REQUIRE(refs >= 0);
+
+ if (ret)
+ refs++;
+
+ DBC_ENSURE((ret && (refs > 0)) || (!ret && (refs >= 0)));
+
+ virtual_mapping_table = NULL;
+ table_size = 0;
+
+ return ret;
+}
+
+/*
+ * ======== dmm_map_memory ========
+ * Purpose:
+ * Add a mapping block to the reserved chunk. DMM assumes that this block
+ * will be mapped in the DSP/IVA's address space. DMM returns an error if a
+ * mapping overlaps another one. This function stores the info that will be
+ * required later while unmapping the block.
+ */
+int dmm_map_memory(struct dmm_object *dmm_mgr, u32 addr, u32 size)
+{
+ struct dmm_object *dmm_obj = (struct dmm_object *)dmm_mgr;
+ struct map_page *chunk;
+ int status = 0;
+
+ spin_lock(&dmm_obj->dmm_lock);
+ /* Find the Reserved memory chunk containing the DSP block to
+ * be mapped */
+ chunk = (struct map_page *)get_region(addr);
+ if (chunk != NULL) {
+ /* Mark the region 'mapped', leave the 'reserved' info as-is */
+ chunk->mapped = true;
+ chunk->mapped_size = (size / PG_SIZE4K);
+ } else
+ status = -ENOENT;
+ spin_unlock(&dmm_obj->dmm_lock);
+
+ dev_dbg(bridge, "%s dmm_mgr %p, addr %x, size %x\n\tstatus %x, "
+ "chunk %p", __func__, dmm_mgr, addr, size, status, chunk);
+
+ return status;
+}
+
+/*
+ * ======== dmm_reserve_memory ========
+ * Purpose:
+ * Reserve a chunk of virtually contiguous DSP/IVA address space.
+ */
+int dmm_reserve_memory(struct dmm_object *dmm_mgr, u32 size,
+ u32 *prsv_addr)
+{
+ int status = 0;
+ struct dmm_object *dmm_obj = (struct dmm_object *)dmm_mgr;
+ struct map_page *node;
+ u32 rsv_addr = 0;
+ u32 rsv_size = 0;
+
+ spin_lock(&dmm_obj->dmm_lock);
+
+ /* Try to get a DSP chunk from the free list */
+ node = get_free_region(size);
+ if (node != NULL) {
+ /* DSP chunk of given size is available. */
+ rsv_addr = DMM_ADDR_VIRTUAL(node);
+ /* Calculate the number entries to use */
+ rsv_size = size / PG_SIZE4K;
+ if (rsv_size < node->region_size) {
+ /* Mark remainder of free region */
+ node[rsv_size].mapped = false;
+ node[rsv_size].reserved = false;
+ node[rsv_size].region_size =
+ node->region_size - rsv_size;
+ node[rsv_size].mapped_size = 0;
+ }
+ /* get_region will return first fit chunk. But we only use what
+ is requested. */
+ node->mapped = false;
+ node->reserved = true;
+ node->region_size = rsv_size;
+ node->mapped_size = 0;
+ /* Return the chunk's starting address */
+ *prsv_addr = rsv_addr;
+ } else
+ /*dSP chunk of given size is not available */
+ status = -ENOMEM;
+
+ spin_unlock(&dmm_obj->dmm_lock);
+
+ dev_dbg(bridge, "%s dmm_mgr %p, size %x, prsv_addr %p\n\tstatus %x, "
+ "rsv_addr %x, rsv_size %x\n", __func__, dmm_mgr, size,
+ prsv_addr, status, rsv_addr, rsv_size);
+
+ return status;
+}
+
+/*
+ * ======== dmm_un_map_memory ========
+ * Purpose:
+ * Remove the mapped block from the reserved chunk.
+ */
+int dmm_un_map_memory(struct dmm_object *dmm_mgr, u32 addr, u32 *psize)
+{
+ struct dmm_object *dmm_obj = (struct dmm_object *)dmm_mgr;
+ struct map_page *chunk;
+ int status = 0;
+
+ spin_lock(&dmm_obj->dmm_lock);
+ chunk = get_mapped_region(addr);
+ if (chunk == NULL)
+ status = -ENOENT;
+
+ if (DSP_SUCCEEDED(status)) {
+ /* Unmap the region */
+ *psize = chunk->mapped_size * PG_SIZE4K;
+ chunk->mapped = false;
+ chunk->mapped_size = 0;
+ }
+ spin_unlock(&dmm_obj->dmm_lock);
+
+ dev_dbg(bridge, "%s: dmm_mgr %p, addr %x, psize %p\n\tstatus %x, "
+ "chunk %p\n", __func__, dmm_mgr, addr, psize, status, chunk);
+
+ return status;
+}
+
+/*
+ * ======== dmm_un_reserve_memory ========
+ * Purpose:
+ * Free a chunk of reserved DSP/IVA address space.
+ */
+int dmm_un_reserve_memory(struct dmm_object *dmm_mgr, u32 rsv_addr)
+{
+ struct dmm_object *dmm_obj = (struct dmm_object *)dmm_mgr;
+ struct map_page *chunk;
+ u32 i;
+ int status = 0;
+ u32 chunk_size;
+
+ spin_lock(&dmm_obj->dmm_lock);
+
+ /* Find the chunk containing the reserved address */
+ chunk = get_mapped_region(rsv_addr);
+ if (chunk == NULL)
+ status = -ENOENT;
+
+ if (DSP_SUCCEEDED(status)) {
+ /* Free all the mapped pages for this reserved region */
+ i = 0;
+ while (i < chunk->region_size) {
+ if (chunk[i].mapped) {
+ /* Remove mapping from the page tables. */
+ chunk_size = chunk[i].mapped_size;
+ /* Clear the mapping flags */
+ chunk[i].mapped = false;
+ chunk[i].mapped_size = 0;
+ i += chunk_size;
+ } else
+ i++;
+ }
+ /* Clear the flags (mark the region 'free') */
+ chunk->reserved = false;
+ /* NOTE: We do NOT coalesce free regions here.
+ * Free regions are coalesced in get_region(), as it traverses
+ *the whole mapping table
+ */
+ }
+ spin_unlock(&dmm_obj->dmm_lock);
+
+ dev_dbg(bridge, "%s: dmm_mgr %p, rsv_addr %x\n\tstatus %x chunk %p",
+ __func__, dmm_mgr, rsv_addr, status, chunk);
+
+ return status;
+}
+
+/*
+ * ======== get_region ========
+ * Purpose:
+ * Returns a region containing the specified memory region
+ */
+static struct map_page *get_region(u32 aAddr)
+{
+ struct map_page *curr_region = NULL;
+ u32 i = 0;
+
+ if (virtual_mapping_table != NULL) {
+ /* find page mapped by this address */
+ i = DMM_ADDR_TO_INDEX(aAddr);
+ if (i < table_size)
+ curr_region = virtual_mapping_table + i;
+ }
+
+ dev_dbg(bridge, "%s: curr_region %p, free_region %d, free_size %d\n",
+ __func__, curr_region, free_region, free_size);
+ return curr_region;
+}
+
+/*
+ * ======== get_free_region ========
+ * Purpose:
+ * Returns the requested free region
+ */
+static struct map_page *get_free_region(u32 aSize)
+{
+ struct map_page *curr_region = NULL;
+ u32 i = 0;
+ u32 region_size = 0;
+ u32 next_i = 0;
+
+ if (virtual_mapping_table == NULL)
+ return curr_region;
+ if (aSize > free_size) {
+ /* Find the largest free region
+ * (coalesce during the traversal) */
+ while (i < table_size) {
+ region_size = virtual_mapping_table[i].region_size;
+ next_i = i + region_size;
+ if (virtual_mapping_table[i].reserved == false) {
+ /* Coalesce, if possible */
+ if (next_i < table_size &&
+ virtual_mapping_table[next_i].reserved
+ == false) {
+ virtual_mapping_table[i].region_size +=
+ virtual_mapping_table
+ [next_i].region_size;
+ continue;
+ }
+ region_size *= PG_SIZE4K;
+ if (region_size > free_size) {
+ free_region = i;
+ free_size = region_size;
+ }
+ }
+ i = next_i;
+ }
+ }
+ if (aSize <= free_size) {
+ curr_region = virtual_mapping_table + free_region;
+ free_region += (aSize / PG_SIZE4K);
+ free_size -= aSize;
+ }
+ return curr_region;
+}
+
+/*
+ * ======== get_mapped_region ========
+ * Purpose:
+ * Returns the requestedmapped region
+ */
+static struct map_page *get_mapped_region(u32 aAddr)
+{
+ u32 i = 0;
+ struct map_page *curr_region = NULL;
+
+ if (virtual_mapping_table == NULL)
+ return curr_region;
+
+ i = DMM_ADDR_TO_INDEX(aAddr);
+ if (i < table_size && (virtual_mapping_table[i].mapped ||
+ virtual_mapping_table[i].reserved))
+ curr_region = virtual_mapping_table + i;
+ return curr_region;
+}
+
+#ifdef DSP_DMM_DEBUG
+u32 dmm_mem_map_dump(struct dmm_object *dmm_mgr)
+{
+ struct map_page *curr_node = NULL;
+ u32 i;
+ u32 freemem = 0;
+ u32 bigsize = 0;
+
+ spin_lock(&dmm_mgr->dmm_lock);
+
+ if (virtual_mapping_table != NULL) {
+ for (i = 0; i < table_size; i +=
+ virtual_mapping_table[i].region_size) {
+ curr_node = virtual_mapping_table + i;
+ if (curr_node->reserved == TRUE) {
+ /*printk("RESERVED size = 0x%x, "
+ "Map size = 0x%x\n",
+ (curr_node->region_size * PG_SIZE4K),
+ (curr_node->mapped == false) ? 0 :
+ (curr_node->mapped_size * PG_SIZE4K));
+ */
+ } else {
+/* printk("UNRESERVED size = 0x%x\n",
+ (curr_node->region_size * PG_SIZE4K));
+ */
+ freemem += (curr_node->region_size * PG_SIZE4K);
+ if (curr_node->region_size > bigsize)
+ bigsize = curr_node->region_size;
+ }
+ }
+ }
+ spin_unlock(&dmm_mgr->dmm_lock);
+ printk(KERN_INFO "Total DSP VA FREE memory = %d Mbytes\n",
+ freemem / (1024 * 1024));
+ printk(KERN_INFO "Total DSP VA USED memory= %d Mbytes \n",
+ (((table_size * PG_SIZE4K) - freemem)) / (1024 * 1024));
+ printk(KERN_INFO "DSP VA - Biggest FREE block = %d Mbytes \n\n",
+ (bigsize * PG_SIZE4K / (1024 * 1024)));
+
+ return 0;
+}
+#endif
--- /dev/null
+/*
+ * dspapi.c
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * Common DSP API functions, also includes the wrapper
+ * functions called directly by the DeviceIOControl interface.
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/* ----------------------------------- Host OS */
+#include <dspbridge/host_os.h>
+
+/* ----------------------------------- DSP/BIOS Bridge */
+#include <dspbridge/std.h>
+#include <dspbridge/dbdefs.h>
+
+/* ----------------------------------- Trace & Debug */
+#include <dspbridge/dbc.h>
+
+/* ----------------------------------- OS Adaptation Layer */
+#include <dspbridge/cfg.h>
+#include <dspbridge/ntfy.h>
+#include <dspbridge/services.h>
+
+/* ----------------------------------- Platform Manager */
+#include <dspbridge/chnl.h>
+#include <dspbridge/dev.h>
+#include <dspbridge/drv.h>
+
+#include <dspbridge/proc.h>
+#include <dspbridge/strm.h>
+
+/* ----------------------------------- Resource Manager */
+#include <dspbridge/disp.h>
+#include <dspbridge/mgr.h>
+#include <dspbridge/node.h>
+#include <dspbridge/rmm.h>
+
+/* ----------------------------------- Others */
+#include <dspbridge/msg.h>
+#include <dspbridge/cmm.h>
+#include <dspbridge/io.h>
+
+/* ----------------------------------- This */
+#include <dspbridge/dspapi.h>
+#include <dspbridge/dbdcd.h>
+
+#include <dspbridge/resourcecleanup.h>
+
+/* ----------------------------------- Defines, Data Structures, Typedefs */
+#define MAX_TRACEBUFLEN 255
+#define MAX_LOADARGS 16
+#define MAX_NODES 64
+#define MAX_STREAMS 16
+#define MAX_BUFS 64
+
+/* Used to get dspbridge ioctl table */
+#define DB_GET_IOC_TABLE(cmd) (DB_GET_MODULE(cmd) >> DB_MODULE_SHIFT)
+
+/* Device IOCtl function pointer */
+struct api_cmd {
+ u32(*fxn) (union Trapped_Args *args, void *pr_ctxt);
+ u32 dw_index;
+};
+
+/* ----------------------------------- Globals */
+static u32 api_c_refs;
+
+/*
+ * Function tables.
+ * The order of these functions MUST be the same as the order of the command
+ * numbers defined in dspapi-ioctl.h This is how an IOCTL number in user mode
+ * turns into a function call in kernel mode.
+ */
+
+/* MGR wrapper functions */
+static struct api_cmd mgr_cmd[] = {
+ {mgrwrap_enum_node_info}, /* MGR_ENUMNODE_INFO */
+ {mgrwrap_enum_proc_info}, /* MGR_ENUMPROC_INFO */
+ {mgrwrap_register_object}, /* MGR_REGISTEROBJECT */
+ {mgrwrap_unregister_object}, /* MGR_UNREGISTEROBJECT */
+ {mgrwrap_wait_for_bridge_events}, /* MGR_WAIT */
+ {mgrwrap_get_process_resources_info}, /* MGR_GET_PROC_RES */
+};
+
+/* PROC wrapper functions */
+static struct api_cmd proc_cmd[] = {
+ {procwrap_attach}, /* PROC_ATTACH */
+ {procwrap_ctrl}, /* PROC_CTRL */
+ {procwrap_detach}, /* PROC_DETACH */
+ {procwrap_enum_node_info}, /* PROC_ENUMNODE */
+ {procwrap_enum_resources}, /* PROC_ENUMRESOURCES */
+ {procwrap_get_state}, /* PROC_GET_STATE */
+ {procwrap_get_trace}, /* PROC_GET_TRACE */
+ {procwrap_load}, /* PROC_LOAD */
+ {procwrap_register_notify}, /* PROC_REGISTERNOTIFY */
+ {procwrap_start}, /* PROC_START */
+ {procwrap_reserve_memory}, /* PROC_RSVMEM */
+ {procwrap_un_reserve_memory}, /* PROC_UNRSVMEM */
+ {procwrap_map}, /* PROC_MAPMEM */
+ {procwrap_un_map}, /* PROC_UNMAPMEM */
+ {procwrap_flush_memory}, /* PROC_FLUSHMEMORY */
+ {procwrap_stop}, /* PROC_STOP */
+ {procwrap_invalidate_memory}, /* PROC_INVALIDATEMEMORY */
+ {procwrap_begin_dma}, /* PROC_BEGINDMA */
+ {procwrap_end_dma}, /* PROC_ENDDMA */
+};
+
+/* NODE wrapper functions */
+static struct api_cmd node_cmd[] = {
+ {nodewrap_allocate}, /* NODE_ALLOCATE */
+ {nodewrap_alloc_msg_buf}, /* NODE_ALLOCMSGBUF */
+ {nodewrap_change_priority}, /* NODE_CHANGEPRIORITY */
+ {nodewrap_connect}, /* NODE_CONNECT */
+ {nodewrap_create}, /* NODE_CREATE */
+ {nodewrap_delete}, /* NODE_DELETE */
+ {nodewrap_free_msg_buf}, /* NODE_FREEMSGBUF */
+ {nodewrap_get_attr}, /* NODE_GETATTR */
+ {nodewrap_get_message}, /* NODE_GETMESSAGE */
+ {nodewrap_pause}, /* NODE_PAUSE */
+ {nodewrap_put_message}, /* NODE_PUTMESSAGE */
+ {nodewrap_register_notify}, /* NODE_REGISTERNOTIFY */
+ {nodewrap_run}, /* NODE_RUN */
+ {nodewrap_terminate}, /* NODE_TERMINATE */
+ {nodewrap_get_uuid_props}, /* NODE_GETUUIDPROPS */
+};
+
+/* STRM wrapper functions */
+static struct api_cmd strm_cmd[] = {
+ {strmwrap_allocate_buffer}, /* STRM_ALLOCATEBUFFER */
+ {strmwrap_close}, /* STRM_CLOSE */
+ {strmwrap_free_buffer}, /* STRM_FREEBUFFER */
+ {strmwrap_get_event_handle}, /* STRM_GETEVENTHANDLE */
+ {strmwrap_get_info}, /* STRM_GETINFO */
+ {strmwrap_idle}, /* STRM_IDLE */
+ {strmwrap_issue}, /* STRM_ISSUE */
+ {strmwrap_open}, /* STRM_OPEN */
+ {strmwrap_reclaim}, /* STRM_RECLAIM */
+ {strmwrap_register_notify}, /* STRM_REGISTERNOTIFY */
+ {strmwrap_select}, /* STRM_SELECT */
+};
+
+/* CMM wrapper functions */
+static struct api_cmd cmm_cmd[] = {
+ {cmmwrap_calloc_buf}, /* CMM_ALLOCBUF */
+ {cmmwrap_free_buf}, /* CMM_FREEBUF */
+ {cmmwrap_get_handle}, /* CMM_GETHANDLE */
+ {cmmwrap_get_info}, /* CMM_GETINFO */
+};
+
+/* Array used to store ioctl table sizes. It can hold up to 8 entries */
+static u8 size_cmd[] = {
+ ARRAY_SIZE(mgr_cmd),
+ ARRAY_SIZE(proc_cmd),
+ ARRAY_SIZE(node_cmd),
+ ARRAY_SIZE(strm_cmd),
+ ARRAY_SIZE(cmm_cmd),
+};
+
+static inline void _cp_fm_usr(void *to, const void __user * from,
+ int *err, unsigned long bytes)
+{
+ if (DSP_FAILED(*err))
+ return;
+
+ if (unlikely(!from)) {
+ *err = -EFAULT;
+ return;
+ }
+
+ if (unlikely(copy_from_user(to, from, bytes)))
+ *err = -EFAULT;
+}
+
+#define CP_FM_USR(to, from, err, n) \
+ _cp_fm_usr(to, from, &(err), (n) * sizeof(*(to)))
+
+static inline void _cp_to_usr(void __user *to, const void *from,
+ int *err, unsigned long bytes)
+{
+ if (DSP_FAILED(*err))
+ return;
+
+ if (unlikely(!to)) {
+ *err = -EFAULT;
+ return;
+ }
+
+ if (unlikely(copy_to_user(to, from, bytes)))
+ *err = -EFAULT;
+}
+
+#define CP_TO_USR(to, from, err, n) \
+ _cp_to_usr(to, from, &(err), (n) * sizeof(*(from)))
+
+/*
+ * ======== api_call_dev_ioctl ========
+ * Purpose:
+ * Call the (wrapper) function for the corresponding API IOCTL.
+ */
+inline int api_call_dev_ioctl(u32 cmd, union Trapped_Args *args,
+ u32 *result, void *pr_ctxt)
+{
+ u32(*ioctl_cmd) (union Trapped_Args *args, void *pr_ctxt) = NULL;
+ int i;
+
+ if (_IOC_TYPE(cmd) != DB) {
+ pr_err("%s: Incompatible dspbridge ioctl number\n", __func__);
+ goto err;
+ }
+
+ if (DB_GET_IOC_TABLE(cmd) > ARRAY_SIZE(size_cmd)) {
+ pr_err("%s: undefined ioctl module\n", __func__);
+ goto err;
+ }
+
+ /* Check the size of the required cmd table */
+ i = DB_GET_IOC(cmd);
+ if (i > size_cmd[DB_GET_IOC_TABLE(cmd)]) {
+ pr_err("%s: requested ioctl %d out of bounds for table %d\n",
+ __func__, i, DB_GET_IOC_TABLE(cmd));
+ goto err;
+ }
+
+ switch (DB_GET_MODULE(cmd)) {
+ case DB_MGR:
+ ioctl_cmd = mgr_cmd[i].fxn;
+ break;
+ case DB_PROC:
+ ioctl_cmd = proc_cmd[i].fxn;
+ break;
+ case DB_NODE:
+ ioctl_cmd = node_cmd[i].fxn;
+ break;
+ case DB_STRM:
+ ioctl_cmd = strm_cmd[i].fxn;
+ break;
+ case DB_CMM:
+ ioctl_cmd = cmm_cmd[i].fxn;
+ break;
+ }
+
+ if (!ioctl_cmd) {
+ pr_err("%s: requested ioctl not defined\n", __func__);
+ goto err;
+ } else {
+ *result = (*ioctl_cmd) (args, pr_ctxt);
+ }
+
+ return 0;
+
+err:
+ return -EINVAL;
+}
+
+/*
+ * ======== api_exit ========
+ */
+void api_exit(void)
+{
+ DBC_REQUIRE(api_c_refs > 0);
+ api_c_refs--;
+
+ if (api_c_refs == 0) {
+ /* Release all modules initialized in api_init(). */
+ cod_exit();
+ dev_exit();
+ chnl_exit();
+ msg_exit();
+ io_exit();
+ strm_exit();
+ disp_exit();
+ node_exit();
+ proc_exit();
+ mgr_exit();
+ rmm_exit();
+ drv_exit();
+ }
+ DBC_ENSURE(api_c_refs >= 0);
+}
+
+/*
+ * ======== api_init ========
+ * Purpose:
+ * Module initialization used by Bridge API.
+ */
+bool api_init(void)
+{
+ bool ret = true;
+ bool fdrv, fdev, fcod, fchnl, fmsg, fio;
+ bool fmgr, fproc, fnode, fdisp, fstrm, frmm;
+
+ if (api_c_refs == 0) {
+ /* initialize driver and other modules */
+ fdrv = drv_init();
+ fmgr = mgr_init();
+ fproc = proc_init();
+ fnode = node_init();
+ fdisp = disp_init();
+ fstrm = strm_init();
+ frmm = rmm_init();
+ fchnl = chnl_init();
+ fmsg = msg_mod_init();
+ fio = io_init();
+ fdev = dev_init();
+ fcod = cod_init();
+ ret = fdrv && fdev && fchnl && fcod && fmsg && fio;
+ ret = ret && fmgr && fproc && frmm;
+ if (!ret) {
+ if (fdrv)
+ drv_exit();
+
+ if (fmgr)
+ mgr_exit();
+
+ if (fstrm)
+ strm_exit();
+
+ if (fproc)
+ proc_exit();
+
+ if (fnode)
+ node_exit();
+
+ if (fdisp)
+ disp_exit();
+
+ if (fchnl)
+ chnl_exit();
+
+ if (fmsg)
+ msg_exit();
+
+ if (fio)
+ io_exit();
+
+ if (fdev)
+ dev_exit();
+
+ if (fcod)
+ cod_exit();
+
+ if (frmm)
+ rmm_exit();
+
+ }
+ }
+ if (ret)
+ api_c_refs++;
+
+ return ret;
+}
+
+/*
+ * ======== api_init_complete2 ========
+ * Purpose:
+ * Perform any required bridge initialization which cannot
+ * be performed in api_init() or dev_start_device() due
+ * to the fact that some services are not yet
+ * completely initialized.
+ * Parameters:
+ * Returns:
+ * 0: Allow this device to load
+ * -EPERM: Failure.
+ * Requires:
+ * Bridge API initialized.
+ * Ensures:
+ */
+int api_init_complete2(void)
+{
+ int status = 0;
+ struct cfg_devnode *dev_node;
+ struct dev_object *hdev_obj;
+ u8 dev_type;
+ u32 tmp;
+
+ DBC_REQUIRE(api_c_refs > 0);
+
+ /* Walk the list of DevObjects, get each devnode, and attempting to
+ * autostart the board. Note that this requires COF loading, which
+ * requires KFILE. */
+ for (hdev_obj = dev_get_first(); hdev_obj != NULL;
+ hdev_obj = dev_get_next(hdev_obj)) {
+ if (DSP_FAILED(dev_get_dev_node(hdev_obj, &dev_node)))
+ continue;
+
+ if (DSP_FAILED(dev_get_dev_type(hdev_obj, &dev_type)))
+ continue;
+
+ if ((dev_type == DSP_UNIT) || (dev_type == IVA_UNIT))
+ if (cfg_get_auto_start(dev_node, &tmp) == 0
+ && tmp)
+ proc_auto_start(dev_node, hdev_obj);
+ }
+
+ return status;
+}
+
+/* TODO: Remove deprecated and not implemented ioctl wrappers */
+
+/*
+ * ======== mgrwrap_enum_node_info ========
+ */
+u32 mgrwrap_enum_node_info(union Trapped_Args *args, void *pr_ctxt)
+{
+ u8 *pndb_props;
+ u32 num_nodes;
+ int status = 0;
+ u32 size = args->args_mgr_enumnode_info.undb_props_size;
+
+ if (size < sizeof(struct dsp_ndbprops))
+ return -EINVAL;
+
+ pndb_props = kmalloc(size, GFP_KERNEL);
+ if (pndb_props == NULL)
+ status = -ENOMEM;
+
+ if (DSP_SUCCEEDED(status)) {
+ status =
+ mgr_enum_node_info(args->args_mgr_enumnode_info.node_id,
+ (struct dsp_ndbprops *)pndb_props, size,
+ &num_nodes);
+ }
+ CP_TO_USR(args->args_mgr_enumnode_info.pndb_props, pndb_props, status,
+ size);
+ CP_TO_USR(args->args_mgr_enumnode_info.pu_num_nodes, &num_nodes, status,
+ 1);
+ kfree(pndb_props);
+
+ return status;
+}
+
+/*
+ * ======== mgrwrap_enum_proc_info ========
+ */
+u32 mgrwrap_enum_proc_info(union Trapped_Args *args, void *pr_ctxt)
+{
+ u8 *processor_info;
+ u8 num_procs;
+ int status = 0;
+ u32 size = args->args_mgr_enumproc_info.processor_info_size;
+
+ if (size < sizeof(struct dsp_processorinfo))
+ return -EINVAL;
+
+ processor_info = kmalloc(size, GFP_KERNEL);
+ if (processor_info == NULL)
+ status = -ENOMEM;
+
+ if (DSP_SUCCEEDED(status)) {
+ status =
+ mgr_enum_processor_info(args->args_mgr_enumproc_info.
+ processor_id,
+ (struct dsp_processorinfo *)
+ processor_info, size, &num_procs);
+ }
+ CP_TO_USR(args->args_mgr_enumproc_info.processor_info, processor_info,
+ status, size);
+ CP_TO_USR(args->args_mgr_enumproc_info.pu_num_procs, &num_procs,
+ status, 1);
+ kfree(processor_info);
+
+ return status;
+}
+
+#define WRAP_MAP2CALLER(x) x
+/*
+ * ======== mgrwrap_register_object ========
+ */
+u32 mgrwrap_register_object(union Trapped_Args *args, void *pr_ctxt)
+{
+ u32 ret;
+ struct dsp_uuid uuid_obj;
+ u32 path_size = 0;
+ char *psz_path_name = NULL;
+ int status = 0;
+
+ CP_FM_USR(&uuid_obj, args->args_mgr_registerobject.uuid_obj, status, 1);
+ if (DSP_FAILED(status))
+ goto func_end;
+ /* path_size is increased by 1 to accommodate NULL */
+ path_size = strlen_user((char *)
+ args->args_mgr_registerobject.psz_path_name) +
+ 1;
+ psz_path_name = kmalloc(path_size, GFP_KERNEL);
+ if (!psz_path_name)
+ goto func_end;
+ ret = strncpy_from_user(psz_path_name,
+ (char *)args->args_mgr_registerobject.
+ psz_path_name, path_size);
+ if (!ret) {
+ status = -EFAULT;
+ goto func_end;
+ }
+
+ if (args->args_mgr_registerobject.obj_type >= DSP_DCDMAXOBJTYPE)
+ return -EINVAL;
+
+ status = dcd_register_object(&uuid_obj,
+ args->args_mgr_registerobject.obj_type,
+ (char *)psz_path_name);
+func_end:
+ kfree(psz_path_name);
+ return status;
+}
+
+/*
+ * ======== mgrwrap_unregister_object ========
+ */
+u32 mgrwrap_unregister_object(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ struct dsp_uuid uuid_obj;
+
+ CP_FM_USR(&uuid_obj, args->args_mgr_registerobject.uuid_obj, status, 1);
+ if (DSP_FAILED(status))
+ goto func_end;
+
+ status = dcd_unregister_object(&uuid_obj,
+ args->args_mgr_unregisterobject.
+ obj_type);
+func_end:
+ return status;
+
+}
+
+/*
+ * ======== mgrwrap_wait_for_bridge_events ========
+ */
+u32 mgrwrap_wait_for_bridge_events(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0, real_status = 0;
+ struct dsp_notification *anotifications[MAX_EVENTS];
+ struct dsp_notification notifications[MAX_EVENTS];
+ u32 index, i;
+ u32 count = args->args_mgr_wait.count;
+
+ if (count > MAX_EVENTS)
+ status = -EINVAL;
+
+ /* get the array of pointers to user structures */
+ CP_FM_USR(anotifications, args->args_mgr_wait.anotifications,
+ status, count);
+ /* get the events */
+ for (i = 0; i < count; i++) {
+ CP_FM_USR(¬ifications[i], anotifications[i], status, 1);
+ if (DSP_SUCCEEDED(status)) {
+ /* set the array of pointers to kernel structures */
+ anotifications[i] = ¬ifications[i];
+ }
+ }
+ if (DSP_SUCCEEDED(status)) {
+ real_status = mgr_wait_for_bridge_events(anotifications, count,
+ &index,
+ args->args_mgr_wait.
+ utimeout);
+ }
+ CP_TO_USR(args->args_mgr_wait.pu_index, &index, status, 1);
+ return real_status;
+}
+
+/*
+ * ======== MGRWRAP_GetProcessResourceInfo ========
+ */
+u32 __deprecated mgrwrap_get_process_resources_info(union Trapped_Args * args,
+ void *pr_ctxt)
+{
+ pr_err("%s: deprecated dspbridge ioctl\n", __func__);
+ return 0;
+}
+
+/*
+ * ======== procwrap_attach ========
+ */
+u32 procwrap_attach(union Trapped_Args *args, void *pr_ctxt)
+{
+ void *processor;
+ int status = 0;
+ struct dsp_processorattrin proc_attr_in, *attr_in = NULL;
+
+ /* Optional argument */
+ if (args->args_proc_attach.attr_in) {
+ CP_FM_USR(&proc_attr_in, args->args_proc_attach.attr_in, status,
+ 1);
+ if (DSP_SUCCEEDED(status))
+ attr_in = &proc_attr_in;
+ else
+ goto func_end;
+
+ }
+ status = proc_attach(args->args_proc_attach.processor_id, attr_in,
+ &processor, pr_ctxt);
+ CP_TO_USR(args->args_proc_attach.ph_processor, &processor, status, 1);
+func_end:
+ return status;
+}
+
+/*
+ * ======== procwrap_ctrl ========
+ */
+u32 procwrap_ctrl(union Trapped_Args *args, void *pr_ctxt)
+{
+ u32 cb_data_size, __user * psize = (u32 __user *)
+ args->args_proc_ctrl.pargs;
+ u8 *pargs = NULL;
+ int status = 0;
+
+ if (psize) {
+ if (get_user(cb_data_size, psize)) {
+ status = -EPERM;
+ goto func_end;
+ }
+ cb_data_size += sizeof(u32);
+ pargs = kmalloc(cb_data_size, GFP_KERNEL);
+ if (pargs == NULL) {
+ status = -ENOMEM;
+ goto func_end;
+ }
+
+ CP_FM_USR(pargs, args->args_proc_ctrl.pargs, status,
+ cb_data_size);
+ }
+ if (DSP_SUCCEEDED(status)) {
+ status = proc_ctrl(args->args_proc_ctrl.hprocessor,
+ args->args_proc_ctrl.dw_cmd,
+ (struct dsp_cbdata *)pargs);
+ }
+
+ /* CP_TO_USR(args->args_proc_ctrl.pargs, pargs, status, 1); */
+ kfree(pargs);
+func_end:
+ return status;
+}
+
+/*
+ * ======== procwrap_detach ========
+ */
+u32 __deprecated procwrap_detach(union Trapped_Args * args, void *pr_ctxt)
+{
+ /* proc_detach called at bridge_release only */
+ pr_err("%s: deprecated dspbridge ioctl\n", __func__);
+ return 0;
+}
+
+/*
+ * ======== procwrap_enum_node_info ========
+ */
+u32 procwrap_enum_node_info(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status;
+ void *node_tab[MAX_NODES];
+ u32 num_nodes;
+ u32 alloc_cnt;
+
+ if (!args->args_proc_enumnode_info.node_tab_size)
+ return -EINVAL;
+
+ status = proc_enum_nodes(args->args_proc_enumnode_info.hprocessor,
+ node_tab,
+ args->args_proc_enumnode_info.node_tab_size,
+ &num_nodes, &alloc_cnt);
+ CP_TO_USR(args->args_proc_enumnode_info.node_tab, node_tab, status,
+ num_nodes);
+ CP_TO_USR(args->args_proc_enumnode_info.pu_num_nodes, &num_nodes,
+ status, 1);
+ CP_TO_USR(args->args_proc_enumnode_info.pu_allocated, &alloc_cnt,
+ status, 1);
+ return status;
+}
+
+u32 procwrap_end_dma(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status;
+
+ if (args->args_proc_dma.dir >= DMA_NONE)
+ return -EINVAL;
+
+ status = proc_end_dma(pr_ctxt,
+ args->args_proc_dma.pmpu_addr,
+ args->args_proc_dma.ul_size,
+ args->args_proc_dma.dir);
+ return status;
+}
+
+u32 procwrap_begin_dma(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status;
+
+ if (args->args_proc_dma.dir >= DMA_NONE)
+ return -EINVAL;
+
+ status = proc_begin_dma(pr_ctxt,
+ args->args_proc_dma.pmpu_addr,
+ args->args_proc_dma.ul_size,
+ args->args_proc_dma.dir);
+ return status;
+}
+
+/*
+ * ======== procwrap_flush_memory ========
+ */
+u32 procwrap_flush_memory(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status;
+
+ if (args->args_proc_flushmemory.ul_flags >
+ PROC_WRITEBACK_INVALIDATE_MEM)
+ return -EINVAL;
+
+ status = proc_flush_memory(pr_ctxt,
+ args->args_proc_flushmemory.pmpu_addr,
+ args->args_proc_flushmemory.ul_size,
+ args->args_proc_flushmemory.ul_flags);
+ return status;
+}
+
+/*
+ * ======== procwrap_invalidate_memory ========
+ */
+u32 procwrap_invalidate_memory(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status;
+
+ status =
+ proc_invalidate_memory(pr_ctxt,
+ args->args_proc_invalidatememory.pmpu_addr,
+ args->args_proc_invalidatememory.ul_size);
+ return status;
+}
+
+/*
+ * ======== procwrap_enum_resources ========
+ */
+u32 procwrap_enum_resources(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ struct dsp_resourceinfo resource_info;
+
+ if (args->args_proc_enumresources.resource_info_size <
+ sizeof(struct dsp_resourceinfo))
+ return -EINVAL;
+
+ status =
+ proc_get_resource_info(args->args_proc_enumresources.hprocessor,
+ args->args_proc_enumresources.resource_type,
+ &resource_info,
+ args->args_proc_enumresources.
+ resource_info_size);
+
+ CP_TO_USR(args->args_proc_enumresources.resource_info, &resource_info,
+ status, 1);
+
+ return status;
+
+}
+
+/*
+ * ======== procwrap_get_state ========
+ */
+u32 procwrap_get_state(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status;
+ struct dsp_processorstate proc_state;
+
+ if (args->args_proc_getstate.state_info_size <
+ sizeof(struct dsp_processorstate))
+ return -EINVAL;
+
+ status =
+ proc_get_state(args->args_proc_getstate.hprocessor, &proc_state,
+ args->args_proc_getstate.state_info_size);
+ CP_TO_USR(args->args_proc_getstate.proc_state_obj, &proc_state, status,
+ 1);
+ return status;
+
+}
+
+/*
+ * ======== procwrap_get_trace ========
+ */
+u32 procwrap_get_trace(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status;
+ u8 *pbuf;
+
+ if (args->args_proc_gettrace.max_size > MAX_TRACEBUFLEN)
+ return -EINVAL;
+
+ pbuf = kzalloc(args->args_proc_gettrace.max_size, GFP_KERNEL);
+ if (pbuf != NULL) {
+ status = proc_get_trace(args->args_proc_gettrace.hprocessor,
+ pbuf,
+ args->args_proc_gettrace.max_size);
+ } else {
+ status = -ENOMEM;
+ }
+ CP_TO_USR(args->args_proc_gettrace.pbuf, pbuf, status,
+ args->args_proc_gettrace.max_size);
+ kfree(pbuf);
+
+ return status;
+}
+
+/*
+ * ======== procwrap_load ========
+ */
+u32 procwrap_load(union Trapped_Args *args, void *pr_ctxt)
+{
+ s32 i, len;
+ int status = 0;
+ char *temp;
+ s32 count = args->args_proc_load.argc_index;
+ u8 **argv = NULL, **envp = NULL;
+
+ if (count <= 0 || count > MAX_LOADARGS) {
+ status = -EINVAL;
+ goto func_cont;
+ }
+
+ argv = kmalloc(count * sizeof(u8 *), GFP_KERNEL);
+ if (!argv) {
+ status = -ENOMEM;
+ goto func_cont;
+ }
+
+ CP_FM_USR(argv, args->args_proc_load.user_args, status, count);
+ if (DSP_FAILED(status)) {
+ kfree(argv);
+ argv = NULL;
+ goto func_cont;
+ }
+
+ for (i = 0; i < count; i++) {
+ if (argv[i]) {
+ /* User space pointer to argument */
+ temp = (char *)argv[i];
+ /* len is increased by 1 to accommodate NULL */
+ len = strlen_user((char *)temp) + 1;
+ /* Kernel space pointer to argument */
+ argv[i] = kmalloc(len, GFP_KERNEL);
+ if (argv[i]) {
+ CP_FM_USR(argv[i], temp, status, len);
+ if (DSP_FAILED(status)) {
+ kfree(argv[i]);
+ argv[i] = NULL;
+ goto func_cont;
+ }
+ } else {
+ status = -ENOMEM;
+ goto func_cont;
+ }
+ }
+ }
+ /* TODO: validate this */
+ if (args->args_proc_load.user_envp) {
+ /* number of elements in the envp array including NULL */
+ count = 0;
+ do {
+ get_user(temp, args->args_proc_load.user_envp + count);
+ count++;
+ } while (temp);
+ envp = kmalloc(count * sizeof(u8 *), GFP_KERNEL);
+ if (!envp) {
+ status = -ENOMEM;
+ goto func_cont;
+ }
+
+ CP_FM_USR(envp, args->args_proc_load.user_envp, status, count);
+ if (DSP_FAILED(status)) {
+ kfree(envp);
+ envp = NULL;
+ goto func_cont;
+ }
+ for (i = 0; envp[i]; i++) {
+ /* User space pointer to argument */
+ temp = (char *)envp[i];
+ /* len is increased by 1 to accommodate NULL */
+ len = strlen_user((char *)temp) + 1;
+ /* Kernel space pointer to argument */
+ envp[i] = kmalloc(len, GFP_KERNEL);
+ if (envp[i]) {
+ CP_FM_USR(envp[i], temp, status, len);
+ if (DSP_FAILED(status)) {
+ kfree(envp[i]);
+ envp[i] = NULL;
+ goto func_cont;
+ }
+ } else {
+ status = -ENOMEM;
+ goto func_cont;
+ }
+ }
+ }
+
+ if (DSP_SUCCEEDED(status)) {
+ status = proc_load(args->args_proc_load.hprocessor,
+ args->args_proc_load.argc_index,
+ (CONST char **)argv, (CONST char **)envp);
+ }
+func_cont:
+ if (envp) {
+ i = 0;
+ while (envp[i])
+ kfree(envp[i++]);
+
+ kfree(envp);
+ }
+
+ if (argv) {
+ count = args->args_proc_load.argc_index;
+ for (i = 0; (i < count) && argv[i]; i++)
+ kfree(argv[i]);
+
+ kfree(argv);
+ }
+
+ return status;
+}
+
+/*
+ * ======== procwrap_map ========
+ */
+u32 procwrap_map(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status;
+ void *map_addr;
+
+ if (!args->args_proc_mapmem.ul_size)
+ return -EINVAL;
+
+ status = proc_map(args->args_proc_mapmem.hprocessor,
+ args->args_proc_mapmem.pmpu_addr,
+ args->args_proc_mapmem.ul_size,
+ args->args_proc_mapmem.req_addr, &map_addr,
+ args->args_proc_mapmem.ul_map_attr, pr_ctxt);
+ if (DSP_SUCCEEDED(status)) {
+ if (put_user(map_addr, args->args_proc_mapmem.pp_map_addr)) {
+ status = -EINVAL;
+ proc_un_map(args->args_proc_mapmem.hprocessor,
+ map_addr, pr_ctxt);
+ }
+
+ }
+ return status;
+}
+
+/*
+ * ======== procwrap_register_notify ========
+ */
+u32 procwrap_register_notify(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status;
+ struct dsp_notification notification;
+
+ /* Initialize the notification data structure */
+ notification.ps_name = NULL;
+ notification.handle = NULL;
+
+ status =
+ proc_register_notify(args->args_proc_register_notify.hprocessor,
+ args->args_proc_register_notify.event_mask,
+ args->args_proc_register_notify.notify_type,
+ ¬ification);
+ CP_TO_USR(args->args_proc_register_notify.hnotification, ¬ification,
+ status, 1);
+ return status;
+}
+
+/*
+ * ======== procwrap_reserve_memory ========
+ */
+u32 procwrap_reserve_memory(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status;
+ void *prsv_addr;
+
+ if ((args->args_proc_rsvmem.ul_size <= 0) ||
+ (args->args_proc_rsvmem.ul_size & (PG_SIZE4K - 1)) != 0)
+ return -EINVAL;
+
+ status = proc_reserve_memory(args->args_proc_rsvmem.hprocessor,
+ args->args_proc_rsvmem.ul_size, &prsv_addr,
+ pr_ctxt);
+ if (DSP_SUCCEEDED(status)) {
+ if (put_user(prsv_addr, args->args_proc_rsvmem.pp_rsv_addr)) {
+ status = -EINVAL;
+ proc_un_reserve_memory(args->args_proc_rsvmem.
+ hprocessor, prsv_addr, pr_ctxt);
+ }
+ }
+ return status;
+}
+
+/*
+ * ======== procwrap_start ========
+ */
+u32 procwrap_start(union Trapped_Args *args, void *pr_ctxt)
+{
+ u32 ret;
+
+ ret = proc_start(args->args_proc_start.hprocessor);
+ return ret;
+}
+
+/*
+ * ======== procwrap_un_map ========
+ */
+u32 procwrap_un_map(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status;
+
+ status = proc_un_map(args->args_proc_unmapmem.hprocessor,
+ args->args_proc_unmapmem.map_addr, pr_ctxt);
+ return status;
+}
+
+/*
+ * ======== procwrap_un_reserve_memory ========
+ */
+u32 procwrap_un_reserve_memory(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status;
+
+ status = proc_un_reserve_memory(args->args_proc_unrsvmem.hprocessor,
+ args->args_proc_unrsvmem.prsv_addr,
+ pr_ctxt);
+ return status;
+}
+
+/*
+ * ======== procwrap_stop ========
+ */
+u32 procwrap_stop(union Trapped_Args *args, void *pr_ctxt)
+{
+ u32 ret;
+
+ ret = proc_stop(args->args_proc_stop.hprocessor);
+
+ return ret;
+}
+
+/*
+ * ======== nodewrap_allocate ========
+ */
+u32 nodewrap_allocate(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ struct dsp_uuid node_uuid;
+ u32 cb_data_size = 0;
+ u32 __user *psize = (u32 __user *) args->args_node_allocate.pargs;
+ u8 *pargs = NULL;
+ struct dsp_nodeattrin proc_attr_in, *attr_in = NULL;
+ struct node_object *hnode;
+
+ /* Optional argument */
+ if (psize) {
+ if (get_user(cb_data_size, psize))
+ status = -EPERM;
+
+ cb_data_size += sizeof(u32);
+ if (DSP_SUCCEEDED(status)) {
+ pargs = kmalloc(cb_data_size, GFP_KERNEL);
+ if (pargs == NULL)
+ status = -ENOMEM;
+
+ }
+ CP_FM_USR(pargs, args->args_node_allocate.pargs, status,
+ cb_data_size);
+ }
+ CP_FM_USR(&node_uuid, args->args_node_allocate.node_id_ptr, status, 1);
+ if (DSP_FAILED(status))
+ goto func_cont;
+ /* Optional argument */
+ if (args->args_node_allocate.attr_in) {
+ CP_FM_USR(&proc_attr_in, args->args_node_allocate.attr_in,
+ status, 1);
+ if (DSP_SUCCEEDED(status))
+ attr_in = &proc_attr_in;
+ else
+ status = -ENOMEM;
+
+ }
+ if (DSP_SUCCEEDED(status)) {
+ status = node_allocate(args->args_node_allocate.hprocessor,
+ &node_uuid, (struct dsp_cbdata *)pargs,
+ attr_in, &hnode, pr_ctxt);
+ }
+ if (DSP_SUCCEEDED(status)) {
+ CP_TO_USR(args->args_node_allocate.ph_node, &hnode, status, 1);
+ if (DSP_FAILED(status)) {
+ status = -EFAULT;
+ node_delete(hnode, pr_ctxt);
+ }
+ }
+func_cont:
+ kfree(pargs);
+
+ return status;
+}
+
+/*
+ * ======== nodewrap_alloc_msg_buf ========
+ */
+u32 nodewrap_alloc_msg_buf(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ struct dsp_bufferattr *pattr = NULL;
+ struct dsp_bufferattr attr;
+ u8 *pbuffer = NULL;
+
+ if (!args->args_node_allocmsgbuf.usize)
+ return -EINVAL;
+
+ if (args->args_node_allocmsgbuf.pattr) { /* Optional argument */
+ CP_FM_USR(&attr, args->args_node_allocmsgbuf.pattr, status, 1);
+ if (DSP_SUCCEEDED(status))
+ pattr = &attr;
+
+ }
+ /* IN OUT argument */
+ CP_FM_USR(&pbuffer, args->args_node_allocmsgbuf.pbuffer, status, 1);
+ if (DSP_SUCCEEDED(status)) {
+ status = node_alloc_msg_buf(args->args_node_allocmsgbuf.hnode,
+ args->args_node_allocmsgbuf.usize,
+ pattr, &pbuffer);
+ }
+ CP_TO_USR(args->args_node_allocmsgbuf.pbuffer, &pbuffer, status, 1);
+ return status;
+}
+
+/*
+ * ======== nodewrap_change_priority ========
+ */
+u32 nodewrap_change_priority(union Trapped_Args *args, void *pr_ctxt)
+{
+ u32 ret;
+
+ ret = node_change_priority(args->args_node_changepriority.hnode,
+ args->args_node_changepriority.prio);
+
+ return ret;
+}
+
+/*
+ * ======== nodewrap_connect ========
+ */
+u32 nodewrap_connect(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ struct dsp_strmattr attrs;
+ struct dsp_strmattr *pattrs = NULL;
+ u32 cb_data_size;
+ u32 __user *psize = (u32 __user *) args->args_node_connect.conn_param;
+ u8 *pargs = NULL;
+
+ /* Optional argument */
+ if (psize) {
+ if (get_user(cb_data_size, psize))
+ status = -EPERM;
+
+ cb_data_size += sizeof(u32);
+ if (DSP_SUCCEEDED(status)) {
+ pargs = kmalloc(cb_data_size, GFP_KERNEL);
+ if (pargs == NULL) {
+ status = -ENOMEM;
+ goto func_cont;
+ }
+
+ }
+ CP_FM_USR(pargs, args->args_node_connect.conn_param, status,
+ cb_data_size);
+ if (DSP_FAILED(status))
+ goto func_cont;
+ }
+ if (args->args_node_connect.pattrs) { /* Optional argument */
+ CP_FM_USR(&attrs, args->args_node_connect.pattrs, status, 1);
+ if (DSP_SUCCEEDED(status))
+ pattrs = &attrs;
+
+ }
+ if (DSP_SUCCEEDED(status)) {
+ status = node_connect(args->args_node_connect.hnode,
+ args->args_node_connect.stream_id,
+ args->args_node_connect.other_node,
+ args->args_node_connect.other_stream,
+ pattrs, (struct dsp_cbdata *)pargs);
+ }
+func_cont:
+ kfree(pargs);
+
+ return status;
+}
+
+/*
+ * ======== nodewrap_create ========
+ */
+u32 nodewrap_create(union Trapped_Args *args, void *pr_ctxt)
+{
+ u32 ret;
+
+ ret = node_create(args->args_node_create.hnode);
+
+ return ret;
+}
+
+/*
+ * ======== nodewrap_delete ========
+ */
+u32 nodewrap_delete(union Trapped_Args *args, void *pr_ctxt)
+{
+ u32 ret;
+
+ ret = node_delete(args->args_node_delete.hnode, pr_ctxt);
+
+ return ret;
+}
+
+/*
+ * ======== nodewrap_free_msg_buf ========
+ */
+u32 nodewrap_free_msg_buf(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ struct dsp_bufferattr *pattr = NULL;
+ struct dsp_bufferattr attr;
+ if (args->args_node_freemsgbuf.pattr) { /* Optional argument */
+ CP_FM_USR(&attr, args->args_node_freemsgbuf.pattr, status, 1);
+ if (DSP_SUCCEEDED(status))
+ pattr = &attr;
+
+ }
+
+ if (!args->args_node_freemsgbuf.pbuffer)
+ return -EFAULT;
+
+ if (DSP_SUCCEEDED(status)) {
+ status = node_free_msg_buf(args->args_node_freemsgbuf.hnode,
+ args->args_node_freemsgbuf.pbuffer,
+ pattr);
+ }
+
+ return status;
+}
+
+/*
+ * ======== nodewrap_get_attr ========
+ */
+u32 nodewrap_get_attr(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ struct dsp_nodeattr attr;
+
+ status = node_get_attr(args->args_node_getattr.hnode, &attr,
+ args->args_node_getattr.attr_size);
+ CP_TO_USR(args->args_node_getattr.pattr, &attr, status, 1);
+
+ return status;
+}
+
+/*
+ * ======== nodewrap_get_message ========
+ */
+u32 nodewrap_get_message(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status;
+ struct dsp_msg msg;
+
+ status = node_get_message(args->args_node_getmessage.hnode, &msg,
+ args->args_node_getmessage.utimeout);
+
+ CP_TO_USR(args->args_node_getmessage.message, &msg, status, 1);
+
+ return status;
+}
+
+/*
+ * ======== nodewrap_pause ========
+ */
+u32 nodewrap_pause(union Trapped_Args *args, void *pr_ctxt)
+{
+ u32 ret;
+
+ ret = node_pause(args->args_node_pause.hnode);
+
+ return ret;
+}
+
+/*
+ * ======== nodewrap_put_message ========
+ */
+u32 nodewrap_put_message(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ struct dsp_msg msg;
+
+ CP_FM_USR(&msg, args->args_node_putmessage.message, status, 1);
+
+ if (DSP_SUCCEEDED(status)) {
+ status =
+ node_put_message(args->args_node_putmessage.hnode, &msg,
+ args->args_node_putmessage.utimeout);
+ }
+
+ return status;
+}
+
+/*
+ * ======== nodewrap_register_notify ========
+ */
+u32 nodewrap_register_notify(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ struct dsp_notification notification;
+
+ /* Initialize the notification data structure */
+ notification.ps_name = NULL;
+ notification.handle = NULL;
+
+ if (!args->args_proc_register_notify.event_mask)
+ CP_FM_USR(¬ification,
+ args->args_proc_register_notify.hnotification,
+ status, 1);
+
+ status = node_register_notify(args->args_node_registernotify.hnode,
+ args->args_node_registernotify.event_mask,
+ args->args_node_registernotify.
+ notify_type, ¬ification);
+ CP_TO_USR(args->args_node_registernotify.hnotification, ¬ification,
+ status, 1);
+ return status;
+}
+
+/*
+ * ======== nodewrap_run ========
+ */
+u32 nodewrap_run(union Trapped_Args *args, void *pr_ctxt)
+{
+ u32 ret;
+
+ ret = node_run(args->args_node_run.hnode);
+
+ return ret;
+}
+
+/*
+ * ======== nodewrap_terminate ========
+ */
+u32 nodewrap_terminate(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status;
+ int tempstatus;
+
+ status = node_terminate(args->args_node_terminate.hnode, &tempstatus);
+
+ CP_TO_USR(args->args_node_terminate.pstatus, &tempstatus, status, 1);
+
+ return status;
+}
+
+/*
+ * ======== nodewrap_get_uuid_props ========
+ */
+u32 nodewrap_get_uuid_props(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ struct dsp_uuid node_uuid;
+ struct dsp_ndbprops *pnode_props = NULL;
+
+ CP_FM_USR(&node_uuid, args->args_node_getuuidprops.node_id_ptr, status,
+ 1);
+ if (DSP_FAILED(status))
+ goto func_cont;
+ pnode_props = kmalloc(sizeof(struct dsp_ndbprops), GFP_KERNEL);
+ if (pnode_props != NULL) {
+ status =
+ node_get_uuid_props(args->args_node_getuuidprops.hprocessor,
+ &node_uuid, pnode_props);
+ CP_TO_USR(args->args_node_getuuidprops.node_props, pnode_props,
+ status, 1);
+ } else
+ status = -ENOMEM;
+func_cont:
+ kfree(pnode_props);
+ return status;
+}
+
+/*
+ * ======== strmwrap_allocate_buffer ========
+ */
+u32 strmwrap_allocate_buffer(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status;
+ u8 **ap_buffer = NULL;
+ u32 num_bufs = args->args_strm_allocatebuffer.num_bufs;
+
+ if (num_bufs > MAX_BUFS)
+ return -EINVAL;
+
+ ap_buffer = kmalloc((num_bufs * sizeof(u8 *)), GFP_KERNEL);
+
+ status = strm_allocate_buffer(args->args_strm_allocatebuffer.hstream,
+ args->args_strm_allocatebuffer.usize,
+ ap_buffer, num_bufs, pr_ctxt);
+ if (DSP_SUCCEEDED(status)) {
+ CP_TO_USR(args->args_strm_allocatebuffer.ap_buffer, ap_buffer,
+ status, num_bufs);
+ if (DSP_FAILED(status)) {
+ status = -EFAULT;
+ strm_free_buffer(args->args_strm_allocatebuffer.hstream,
+ ap_buffer, num_bufs, pr_ctxt);
+ }
+ }
+ kfree(ap_buffer);
+
+ return status;
+}
+
+/*
+ * ======== strmwrap_close ========
+ */
+u32 strmwrap_close(union Trapped_Args *args, void *pr_ctxt)
+{
+ return strm_close(args->args_strm_close.hstream, pr_ctxt);
+}
+
+/*
+ * ======== strmwrap_free_buffer ========
+ */
+u32 strmwrap_free_buffer(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ u8 **ap_buffer = NULL;
+ u32 num_bufs = args->args_strm_freebuffer.num_bufs;
+
+ if (num_bufs > MAX_BUFS)
+ return -EINVAL;
+
+ ap_buffer = kmalloc((num_bufs * sizeof(u8 *)), GFP_KERNEL);
+
+ CP_FM_USR(ap_buffer, args->args_strm_freebuffer.ap_buffer, status,
+ num_bufs);
+
+ if (DSP_SUCCEEDED(status)) {
+ status = strm_free_buffer(args->args_strm_freebuffer.hstream,
+ ap_buffer, num_bufs, pr_ctxt);
+ }
+ CP_TO_USR(args->args_strm_freebuffer.ap_buffer, ap_buffer, status,
+ num_bufs);
+ kfree(ap_buffer);
+
+ return status;
+}
+
+/*
+ * ======== strmwrap_get_event_handle ========
+ */
+u32 __deprecated strmwrap_get_event_handle(union Trapped_Args * args,
+ void *pr_ctxt)
+{
+ pr_err("%s: deprecated dspbridge ioctl\n", __func__);
+ return -ENOSYS;
+}
+
+/*
+ * ======== strmwrap_get_info ========
+ */
+u32 strmwrap_get_info(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ struct stream_info strm_info;
+ struct dsp_streaminfo user;
+ struct dsp_streaminfo *temp;
+
+ CP_FM_USR(&strm_info, args->args_strm_getinfo.stream_info, status, 1);
+ temp = strm_info.user_strm;
+
+ strm_info.user_strm = &user;
+
+ if (DSP_SUCCEEDED(status)) {
+ status = strm_get_info(args->args_strm_getinfo.hstream,
+ &strm_info,
+ args->args_strm_getinfo.
+ stream_info_size);
+ }
+ CP_TO_USR(temp, strm_info.user_strm, status, 1);
+ strm_info.user_strm = temp;
+ CP_TO_USR(args->args_strm_getinfo.stream_info, &strm_info, status, 1);
+ return status;
+}
+
+/*
+ * ======== strmwrap_idle ========
+ */
+u32 strmwrap_idle(union Trapped_Args *args, void *pr_ctxt)
+{
+ u32 ret;
+
+ ret = strm_idle(args->args_strm_idle.hstream,
+ args->args_strm_idle.flush_flag);
+
+ return ret;
+}
+
+/*
+ * ======== strmwrap_issue ========
+ */
+u32 strmwrap_issue(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+
+ if (!args->args_strm_issue.pbuffer)
+ return -EFAULT;
+
+ /* No need of doing CP_FM_USR for the user buffer (pbuffer)
+ as this is done in Bridge internal function bridge_chnl_add_io_req
+ in chnl_sm.c */
+ status = strm_issue(args->args_strm_issue.hstream,
+ args->args_strm_issue.pbuffer,
+ args->args_strm_issue.dw_bytes,
+ args->args_strm_issue.dw_buf_size,
+ args->args_strm_issue.dw_arg);
+
+ return status;
+}
+
+/*
+ * ======== strmwrap_open ========
+ */
+u32 strmwrap_open(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ struct strm_attr attr;
+ struct strm_object *strm_obj;
+ struct dsp_streamattrin strm_attr_in;
+
+ CP_FM_USR(&attr, args->args_strm_open.attr_in, status, 1);
+
+ if (attr.stream_attr_in != NULL) { /* Optional argument */
+ CP_FM_USR(&strm_attr_in, attr.stream_attr_in, status, 1);
+ if (DSP_SUCCEEDED(status)) {
+ attr.stream_attr_in = &strm_attr_in;
+ if (attr.stream_attr_in->strm_mode == STRMMODE_LDMA)
+ return -ENOSYS;
+ }
+
+ }
+ status = strm_open(args->args_strm_open.hnode,
+ args->args_strm_open.direction,
+ args->args_strm_open.index, &attr, &strm_obj,
+ pr_ctxt);
+ CP_TO_USR(args->args_strm_open.ph_stream, &strm_obj, status, 1);
+ return status;
+}
+
+/*
+ * ======== strmwrap_reclaim ========
+ */
+u32 strmwrap_reclaim(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ u8 *buf_ptr;
+ u32 ul_bytes;
+ u32 dw_arg;
+ u32 ul_buf_size;
+
+ status = strm_reclaim(args->args_strm_reclaim.hstream, &buf_ptr,
+ &ul_bytes, &ul_buf_size, &dw_arg);
+ CP_TO_USR(args->args_strm_reclaim.buf_ptr, &buf_ptr, status, 1);
+ CP_TO_USR(args->args_strm_reclaim.bytes, &ul_bytes, status, 1);
+ CP_TO_USR(args->args_strm_reclaim.pdw_arg, &dw_arg, status, 1);
+
+ if (args->args_strm_reclaim.buf_size_ptr != NULL) {
+ CP_TO_USR(args->args_strm_reclaim.buf_size_ptr, &ul_buf_size,
+ status, 1);
+ }
+
+ return status;
+}
+
+/*
+ * ======== strmwrap_register_notify ========
+ */
+u32 strmwrap_register_notify(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ struct dsp_notification notification;
+
+ /* Initialize the notification data structure */
+ notification.ps_name = NULL;
+ notification.handle = NULL;
+
+ status = strm_register_notify(args->args_strm_registernotify.hstream,
+ args->args_strm_registernotify.event_mask,
+ args->args_strm_registernotify.
+ notify_type, ¬ification);
+ CP_TO_USR(args->args_strm_registernotify.hnotification, ¬ification,
+ status, 1);
+
+ return status;
+}
+
+/*
+ * ======== strmwrap_select ========
+ */
+u32 strmwrap_select(union Trapped_Args *args, void *pr_ctxt)
+{
+ u32 mask;
+ struct strm_object *strm_tab[MAX_STREAMS];
+ int status = 0;
+
+ if (args->args_strm_select.strm_num > MAX_STREAMS)
+ return -EINVAL;
+
+ CP_FM_USR(strm_tab, args->args_strm_select.stream_tab, status,
+ args->args_strm_select.strm_num);
+ if (DSP_SUCCEEDED(status)) {
+ status = strm_select(strm_tab, args->args_strm_select.strm_num,
+ &mask, args->args_strm_select.utimeout);
+ }
+ CP_TO_USR(args->args_strm_select.pmask, &mask, status, 1);
+ return status;
+}
+
+/* CMM */
+
+/*
+ * ======== cmmwrap_calloc_buf ========
+ */
+u32 __deprecated cmmwrap_calloc_buf(union Trapped_Args * args, void *pr_ctxt)
+{
+ /* This operation is done in kernel */
+ pr_err("%s: deprecated dspbridge ioctl\n", __func__);
+ return -ENOSYS;
+}
+
+/*
+ * ======== cmmwrap_free_buf ========
+ */
+u32 __deprecated cmmwrap_free_buf(union Trapped_Args * args, void *pr_ctxt)
+{
+ /* This operation is done in kernel */
+ pr_err("%s: deprecated dspbridge ioctl\n", __func__);
+ return -ENOSYS;
+}
+
+/*
+ * ======== cmmwrap_get_handle ========
+ */
+u32 cmmwrap_get_handle(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ struct cmm_object *hcmm_mgr;
+
+ status = cmm_get_handle(args->args_cmm_gethandle.hprocessor, &hcmm_mgr);
+
+ CP_TO_USR(args->args_cmm_gethandle.ph_cmm_mgr, &hcmm_mgr, status, 1);
+
+ return status;
+}
+
+/*
+ * ======== cmmwrap_get_info ========
+ */
+u32 cmmwrap_get_info(union Trapped_Args *args, void *pr_ctxt)
+{
+ int status = 0;
+ struct cmm_info cmm_info_obj;
+
+ status = cmm_get_info(args->args_cmm_getinfo.hcmm_mgr, &cmm_info_obj);
+
+ CP_TO_USR(args->args_cmm_getinfo.cmm_info_obj, &cmm_info_obj, status,
+ 1);
+
+ return status;
+}
--- /dev/null
+/*
+ * io.c
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * IO manager interface: Manages IO between CHNL and msg_ctrl.
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/* ----------------------------------- Host OS */
+#include <dspbridge/host_os.h>
+
+/* ----------------------------------- DSP/BIOS Bridge */
+#include <dspbridge/std.h>
+#include <dspbridge/dbdefs.h>
+
+/* ----------------------------------- Trace & Debug */
+#include <dspbridge/dbc.h>
+
+/* ----------------------------------- OS Adaptation Layer */
+#include <dspbridge/cfg.h>
+
+/* ----------------------------------- Platform Manager */
+#include <dspbridge/dev.h>
+
+/* ----------------------------------- This */
+#include <ioobj.h>
+#include <dspbridge/iodefs.h>
+#include <dspbridge/io.h>
+
+/* ----------------------------------- Globals */
+static u32 refs;
+
+/*
+ * ======== io_create ========
+ * Purpose:
+ * Create an IO manager object, responsible for managing IO between
+ * CHNL and msg_ctrl
+ */
+int io_create(OUT struct io_mgr **phIOMgr, struct dev_object *hdev_obj,
+ IN CONST struct io_attrs *pMgrAttrs)
+{
+ struct bridge_drv_interface *intf_fxns;
+ struct io_mgr *hio_mgr = NULL;
+ struct io_mgr_ *pio_mgr = NULL;
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phIOMgr != NULL);
+ DBC_REQUIRE(pMgrAttrs != NULL);
+
+ *phIOMgr = NULL;
+
+ /* A memory base of 0 implies no memory base: */
+ if ((pMgrAttrs->shm_base != 0) && (pMgrAttrs->usm_length == 0))
+ status = -EINVAL;
+
+ if (pMgrAttrs->word_size == 0)
+ status = -EINVAL;
+
+ if (DSP_SUCCEEDED(status)) {
+ dev_get_intf_fxns(hdev_obj, &intf_fxns);
+
+ /* Let Bridge channel module finish the create: */
+ status = (*intf_fxns->pfn_io_create) (&hio_mgr, hdev_obj,
+ pMgrAttrs);
+
+ if (DSP_SUCCEEDED(status)) {
+ pio_mgr = (struct io_mgr_ *)hio_mgr;
+ pio_mgr->intf_fxns = intf_fxns;
+ pio_mgr->hdev_obj = hdev_obj;
+
+ /* Return the new channel manager handle: */
+ *phIOMgr = hio_mgr;
+ }
+ }
+
+ return status;
+}
+
+/*
+ * ======== io_destroy ========
+ * Purpose:
+ * Delete IO manager.
+ */
+int io_destroy(struct io_mgr *hio_mgr)
+{
+ struct bridge_drv_interface *intf_fxns;
+ struct io_mgr_ *pio_mgr = (struct io_mgr_ *)hio_mgr;
+ int status;
+
+ DBC_REQUIRE(refs > 0);
+
+ intf_fxns = pio_mgr->intf_fxns;
+
+ /* Let Bridge channel module destroy the io_mgr: */
+ status = (*intf_fxns->pfn_io_destroy) (hio_mgr);
+
+ return status;
+}
+
+/*
+ * ======== io_exit ========
+ * Purpose:
+ * Discontinue usage of the IO module.
+ */
+void io_exit(void)
+{
+ DBC_REQUIRE(refs > 0);
+
+ refs--;
+
+ DBC_ENSURE(refs >= 0);
+}
+
+/*
+ * ======== io_init ========
+ * Purpose:
+ * Initialize the IO module's private state.
+ */
+bool io_init(void)
+{
+ bool ret = true;
+
+ DBC_REQUIRE(refs >= 0);
+
+ if (ret)
+ refs++;
+
+ DBC_ENSURE((ret && (refs > 0)) || (!ret && (refs >= 0)));
+
+ return ret;
+}
--- /dev/null
+/*
+ * ioobj.h
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * Structure subcomponents of channel class library IO objects which
+ * are exposed to DSP API from Bridge driver.
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef IOOBJ_
+#define IOOBJ_
+
+#include <dspbridge/devdefs.h>
+#include <dspbridge/dspdefs.h>
+
+/*
+ * This struct is the first field in a io_mgr struct. Other, implementation
+ * specific fields follow this structure in memory.
+ */
+struct io_mgr_ {
+ /* These must be the first fields in a io_mgr struct: */
+ struct bridge_dev_context *hbridge_context; /* Bridge context. */
+ /* Function interface to Bridge driver. */
+ struct bridge_drv_interface *intf_fxns;
+ struct dev_object *hdev_obj; /* Device this board represents. */
+};
+
+#endif /* IOOBJ_ */
--- /dev/null
+/*
+ * msg.c
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * DSP/BIOS Bridge msg_ctrl Module.
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/* ----------------------------------- Host OS */
+#include <dspbridge/host_os.h>
+
+/* ----------------------------------- DSP/BIOS Bridge */
+#include <dspbridge/std.h>
+#include <dspbridge/dbdefs.h>
+
+/* ----------------------------------- Trace & Debug */
+#include <dspbridge/dbc.h>
+
+/* ----------------------------------- Bridge Driver */
+#include <dspbridge/dspdefs.h>
+
+/* ----------------------------------- Platform Manager */
+#include <dspbridge/dev.h>
+
+/* ----------------------------------- This */
+#include <msgobj.h>
+#include <dspbridge/msg.h>
+
+/* ----------------------------------- Globals */
+static u32 refs; /* module reference count */
+
+/*
+ * ======== msg_create ========
+ * Purpose:
+ * Create an object to manage message queues. Only one of these objects
+ * can exist per device object.
+ */
+int msg_create(OUT struct msg_mgr **phMsgMgr,
+ struct dev_object *hdev_obj, msg_onexit msgCallback)
+{
+ struct bridge_drv_interface *intf_fxns;
+ struct msg_mgr_ *msg_mgr_obj;
+ struct msg_mgr *hmsg_mgr;
+ int status = 0;
+
+ DBC_REQUIRE(refs > 0);
+ DBC_REQUIRE(phMsgMgr != NULL);
+ DBC_REQUIRE(msgCallback != NULL);
+ DBC_REQUIRE(hdev_obj != NULL);
+
+ *phMsgMgr = NULL;
+
+ dev_get_intf_fxns(hdev_obj, &intf_fxns);
+
+ /* Let Bridge message module finish the create: */
+ status =
+ (*intf_fxns->pfn_msg_create) (&hmsg_mgr, hdev_obj, msgCallback);
+
+ if (DSP_SUCCEEDED(status)) {
+ /* Fill in DSP API message module's fields of the msg_mgr
+ * structure */
+ msg_mgr_obj = (struct msg_mgr_ *)hmsg_mgr;
+ msg_mgr_obj->intf_fxns = intf_fxns;
+
+ /* Finally, return the new message manager handle: */
+ *phMsgMgr = hmsg_mgr;
+ } else {
+ status = -EPERM;
+ }
+ return status;
+}
+
+/*
+ * ======== msg_delete ========
+ * Purpose:
+ * Delete a msg_ctrl manager allocated in msg_create().
+ */
+void msg_delete(struct msg_mgr *hmsg_mgr)
+{
+ struct msg_mgr_ *msg_mgr_obj = (struct msg_mgr_ *)hmsg_mgr;
+ struct bridge_drv_interface *intf_fxns;
+
+ DBC_REQUIRE(refs > 0);
+
+ if (msg_mgr_obj) {
+ intf_fxns = msg_mgr_obj->intf_fxns;
+
+ /* Let Bridge message module destroy the msg_mgr: */
+ (*intf_fxns->pfn_msg_delete) (hmsg_mgr);
+ } else {
+ dev_dbg(bridge, "%s: Error hmsg_mgr handle: %p\n",
+ __func__, hmsg_mgr);
+ }
+}
+
+/*
+ * ======== msg_exit ========
+ */
+void msg_exit(void)
+{
+ DBC_REQUIRE(refs > 0);
+ refs--;
+
+ DBC_ENSURE(refs >= 0);
+}
+
+/*
+ * ======== msg_mod_init ========
+ */
+bool msg_mod_init(void)
+{
+ DBC_REQUIRE(refs >= 0);
+
+ refs++;
+
+ DBC_ENSURE(refs >= 0);
+
+ return true;
+}
--- /dev/null
+/*
+ * msgobj.h
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * Structure subcomponents of channel class library msg_ctrl objects which
+ * are exposed to DSP API from Bridge driver.
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef MSGOBJ_
+#define MSGOBJ_
+
+#include <dspbridge/dspdefs.h>
+
+#include <dspbridge/msgdefs.h>
+
+/*
+ * This struct is the first field in a msg_mgr struct. Other, implementation
+ * specific fields follow this structure in memory.
+ */
+struct msg_mgr_ {
+ /* The first field must match that in _msg_sm.h */
+
+ /* Function interface to Bridge driver. */
+ struct bridge_drv_interface *intf_fxns;
+};
+
+#endif /* MSGOBJ_ */
git.openpandora.org / pandora-kernel.git / commitdiff