* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: (31 commits)
firewire: fw-sbp2: fix DMA mapping of management ORBs
firewire: fw-sbp2: fix DMA mapping of command ORBs
firewire: fw-sbp2: fix DMA mapping of S/G tables
firewire: fw-sbp2: add a boundary check
firewire: fw-sbp2: correctly align page tables
firewire: fw-sbp2: memset wants string.h
firewire: fw-sbp2: use correct speed in sbp2_agent_reset
firewire: fw-sbp2: correctly dereference by container_of
firewire: Document userspace ioctl interface.
firewire: fw-sbp2: implement nonexclusive login
firewire: fw-sbp2: let SCSI shutdown commands through before logout
firewire: fw-sbp2: implement max sectors limit for some old bridges
firewire: simplify a struct type
firewire: support S100B...S400B and link slower than PHY
firewire: optimize gap count with 1394b leaf nodes
firewire: remove unused macro
firewire: missing newline in printk
firewire: fw-sbp2: remove unused struct member
ieee1394: remove old isochronous ABI
ieee1394: sbp2: change some module parameters from int to bool
...
--- /dev/null
+What: legacy isochronous ABI of raw1394 (1st generation iso ABI)
+Date: June 2007 (scheduled), removed in kernel v2.6.23
+Contact: linux1394-devel@lists.sourceforge.net
+Description:
+ The two request types RAW1394_REQ_ISO_SEND, RAW1394_REQ_ISO_LISTEN have
+ been deprecated for quite some time. They are very inefficient as they
+ come with high interrupt load and several layers of callbacks for each
+ packet. Because of these deficiencies, the video1394 and dv1394 drivers
+ and the 3rd-generation isochronous ABI in raw1394 (rawiso) were created.
+
+Users:
+ libraw1394 users via the long deprecated API raw1394_iso_write,
+ raw1394_start_iso_write, raw1394_start_iso_rcv, raw1394_stop_iso_rcv
+
+ libdc1394, which optionally uses these old libraw1394 calls
+ alternatively to the more efficient video1394 ABI
---------------------------
-What: raw1394: requests of type RAW1394_REQ_ISO_SEND, RAW1394_REQ_ISO_LISTEN
-When: June 2007
-Why: Deprecated in favour of the more efficient and robust rawiso interface.
- Affected are applications which use the deprecated part of libraw1394
- (raw1394_iso_write, raw1394_start_iso_write, raw1394_start_iso_rcv,
- raw1394_stop_iso_rcv) or bypass libraw1394.
-Who: Dan Dennedy <dan@dennedy.org>, Stefan Richter <stefanr@s5r6.in-berlin.de>
-
----------------------------
-
What: old NCR53C9x driver
When: October 2007
Why: Replaced by the much better esp_scsi driver. Actual low-level
}
pick_me:
- /* Now figure out what gap count to set. */
- if (card->topology_type == FW_TOPOLOGY_A &&
+ /*
+ * Pick a gap count from 1394a table E-1. The table doesn't cover
+ * the typically much larger 1394b beta repeater delays though.
+ */
+ if (!card->beta_repeaters_present &&
card->root_node->max_hops < ARRAY_SIZE(gap_count_table))
gap_count = gap_count_table[card->root_node->max_hops];
else
request->tcode & 0x1f,
device->node->node_id,
request->generation,
- device->node->max_speed,
+ device->max_speed,
request->offset,
response->response.data, request->length,
complete_transaction, response);
offset = 0xfffff0000400ULL + index * 4;
fw_send_request(device->card, &t, TCODE_READ_QUADLET_REQUEST,
- device->node_id,
- device->generation, SCODE_100,
+ device->node_id, device->generation, device->max_speed,
offset, NULL, 4, complete_transaction, &callback_data);
wait_for_completion(&callback_data.done);
u32 stack[16], sp, key;
int i, end, length;
+ device->max_speed = SCODE_100;
+
/* First read the bus info block. */
for (i = 0; i < 5; i++) {
if (read_rom(device, i, &rom[i]) != RCODE_COMPLETE)
return -1;
}
+ device->max_speed = device->node->max_speed;
+
+ /*
+ * Determine the speed of
+ * - devices with link speed less than PHY speed,
+ * - devices with 1394b PHY (unless only connected to 1394a PHYs),
+ * - all devices if there are 1394b repeaters.
+ * Note, we cannot use the bus info block's link_spd as starting point
+ * because some buggy firmwares set it lower than necessary and because
+ * 1394-1995 nodes do not have the field.
+ */
+ if ((rom[2] & 0x7) < device->max_speed ||
+ device->max_speed == SCODE_BETA ||
+ device->card->beta_repeaters_present) {
+ u32 dummy;
+
+ /* for S1600 and S3200 */
+ if (device->max_speed == SCODE_BETA)
+ device->max_speed = device->card->link_speed;
+
+ while (device->max_speed > SCODE_100) {
+ if (read_rom(device, 0, &dummy) == RCODE_COMPLETE)
+ break;
+ device->max_speed--;
+ }
+ }
+
/*
* Now parse the config rom. The config rom is a recursive
* directory structure so we parse it using a stack of
FW_DEVICE_RUNNING) == FW_DEVICE_SHUTDOWN)
fw_device_shutdown(&device->work.work);
else
- fw_notify("created new fw device %s (%d config rom retries)\n",
- device->device.bus_id, device->config_rom_retries);
+ fw_notify("created new fw device %s "
+ "(%d config rom retries, S%d00)\n",
+ device->device.bus_id, device->config_rom_retries,
+ 1 << device->max_speed);
/*
* Reschedule the IRM work if we just finished reading the
struct fw_node *node;
int node_id;
int generation;
+ unsigned max_speed;
struct fw_card *card;
struct device device;
struct list_head link;
free_irq(pdev->irq, ohci);
err = pci_save_state(pdev);
if (err) {
- fw_error("pci_save_state failed with %d", err);
+ fw_error("pci_save_state failed\n");
return err;
}
err = pci_set_power_state(pdev, pci_choose_state(pdev, state));
if (err) {
- fw_error("pci_set_power_state failed with %d", err);
+ fw_error("pci_set_power_state failed\n");
return err;
}
pci_restore_state(pdev);
err = pci_enable_device(pdev);
if (err) {
- fw_error("pci_enable_device failed with %d", err);
+ fw_error("pci_enable_device failed\n");
return err;
}
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/moduleparam.h>
#include <linux/mod_devicetable.h>
#include <linux/device.h>
#include <linux/scatterlist.h>
#include <linux/dma-mapping.h>
+#include <linux/blkdev.h>
+#include <linux/string.h>
#include <linux/timer.h>
#include <scsi/scsi.h>
#include "fw-topology.h"
#include "fw-device.h"
+/*
+ * So far only bridges from Oxford Semiconductor are known to support
+ * concurrent logins. Depending on firmware, four or two concurrent logins
+ * are possible on OXFW911 and newer Oxsemi bridges.
+ *
+ * Concurrent logins are useful together with cluster filesystems.
+ */
+static int sbp2_param_exclusive_login = 1;
+module_param_named(exclusive_login, sbp2_param_exclusive_login, bool, 0644);
+MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device "
+ "(default = Y, use N for concurrent initiators)");
+
/* I don't know why the SCSI stack doesn't define something like this... */
typedef void (*scsi_done_fn_t)(struct scsi_cmnd *);
#define MANAGEMENT_ORB_LUN(v) ((v))
#define MANAGEMENT_ORB_FUNCTION(v) ((v) << 16)
#define MANAGEMENT_ORB_RECONNECT(v) ((v) << 20)
-#define MANAGEMENT_ORB_EXCLUSIVE ((1) << 28)
+#define MANAGEMENT_ORB_EXCLUSIVE(v) ((v) ? 1 << 28 : 0)
#define MANAGEMENT_ORB_REQUEST_FORMAT(v) ((v) << 29)
#define MANAGEMENT_ORB_NOTIFY ((1) << 31)
scsi_done_fn_t done;
struct fw_unit *unit;
- struct sbp2_pointer page_table[SG_ALL];
+ struct sbp2_pointer page_table[SG_ALL] __attribute__((aligned(8)));
dma_addr_t page_table_bus;
- dma_addr_t request_buffer_bus;
};
/*
spin_unlock_irqrestore(&device->card->lock, flags);
fw_send_request(device->card, &orb->t, TCODE_WRITE_BLOCK_REQUEST,
- node_id, generation,
- device->node->max_speed, offset,
+ node_id, generation, device->max_speed, offset,
&orb->pointer, sizeof(orb->pointer),
complete_transaction, orb);
}
complete_management_orb(struct sbp2_orb *base_orb, struct sbp2_status *status)
{
struct sbp2_management_orb *orb =
- (struct sbp2_management_orb *)base_orb;
+ container_of(base_orb, struct sbp2_management_orb, base);
if (status)
memcpy(&orb->status, status, sizeof(*status));
if (orb == NULL)
return -ENOMEM;
- /*
- * The sbp2 device is going to send a block read request to
- * read out the request from host memory, so map it for dma.
- */
- orb->base.request_bus =
- dma_map_single(device->card->device, &orb->request,
- sizeof(orb->request), DMA_TO_DEVICE);
- if (dma_mapping_error(orb->base.request_bus))
- goto out;
-
orb->response_bus =
dma_map_single(device->card->device, &orb->response,
sizeof(orb->response), DMA_FROM_DEVICE);
if (dma_mapping_error(orb->response_bus))
- goto out;
+ goto fail_mapping_response;
orb->request.response.high = 0;
orb->request.response.low = orb->response_bus;
orb->request.status_fifo.high = sd->address_handler.offset >> 32;
orb->request.status_fifo.low = sd->address_handler.offset;
- /*
- * FIXME: Yeah, ok this isn't elegant, we hardwire exclusive
- * login and 1 second reconnect time. The reconnect setting
- * is probably fine, but the exclusive login should be an option.
- */
if (function == SBP2_LOGIN_REQUEST) {
orb->request.misc |=
- MANAGEMENT_ORB_EXCLUSIVE |
+ MANAGEMENT_ORB_EXCLUSIVE(sbp2_param_exclusive_login) |
MANAGEMENT_ORB_RECONNECT(0);
}
init_completion(&orb->done);
orb->base.callback = complete_management_orb;
+ orb->base.request_bus =
+ dma_map_single(device->card->device, &orb->request,
+ sizeof(orb->request), DMA_TO_DEVICE);
+ if (dma_mapping_error(orb->base.request_bus))
+ goto fail_mapping_request;
+
sbp2_send_orb(&orb->base, unit,
node_id, generation, sd->management_agent_address);
out:
dma_unmap_single(device->card->device, orb->base.request_bus,
sizeof(orb->request), DMA_TO_DEVICE);
+ fail_mapping_request:
dma_unmap_single(device->card->device, orb->response_bus,
sizeof(orb->response), DMA_FROM_DEVICE);
-
+ fail_mapping_response:
if (response)
fw_memcpy_from_be32(response,
orb->response, sizeof(orb->response));
return -ENOMEM;
fw_send_request(device->card, t, TCODE_WRITE_QUADLET_REQUEST,
- sd->node_id, sd->generation, SCODE_400,
+ sd->node_id, sd->generation, device->max_speed,
sd->command_block_agent_address + SBP2_AGENT_RESET,
&zero, sizeof(zero), complete_agent_reset_write, t);
static void sbp2_reconnect(struct work_struct *work);
static struct scsi_host_template scsi_driver_template;
-static void
-release_sbp2_device(struct kref *kref)
+static void release_sbp2_device(struct kref *kref)
{
struct sbp2_device *sd = container_of(kref, struct sbp2_device, kref);
struct Scsi_Host *host =
container_of((void *)sd, struct Scsi_Host, hostdata[0]);
+ scsi_remove_host(host);
sbp2_send_management_orb(sd->unit, sd->node_id, sd->generation,
SBP2_LOGOUT_REQUEST, sd->login_id, NULL);
-
- scsi_remove_host(host);
fw_core_remove_address_handler(&sd->address_handler);
fw_notify("removed sbp2 unit %s\n", sd->unit->device.bus_id);
put_device(&sd->unit->device);
static void
complete_command_orb(struct sbp2_orb *base_orb, struct sbp2_status *status)
{
- struct sbp2_command_orb *orb = (struct sbp2_command_orb *)base_orb;
+ struct sbp2_command_orb *orb =
+ container_of(base_orb, struct sbp2_command_orb, base);
struct fw_unit *unit = orb->unit;
struct fw_device *device = fw_device(unit->device.parent);
struct scatterlist *sg;
if (orb->page_table_bus != 0)
dma_unmap_single(device->card->device, orb->page_table_bus,
- sizeof(orb->page_table_bus), DMA_TO_DEVICE);
-
- if (orb->request_buffer_bus != 0)
- dma_unmap_single(device->card->device, orb->request_buffer_bus,
- sizeof(orb->request_buffer_bus),
- DMA_FROM_DEVICE);
+ sizeof(orb->page_table), DMA_TO_DEVICE);
orb->cmd->result = result;
orb->done(orb->cmd);
struct fw_device *device = fw_device(unit->device.parent);
struct scatterlist *sg;
int sg_len, l, i, j, count;
- size_t size;
dma_addr_t sg_addr;
sg = (struct scatterlist *)orb->cmd->request_buffer;
sg_len = sg_dma_len(sg + i);
sg_addr = sg_dma_address(sg + i);
while (sg_len) {
+ /* FIXME: This won't get us out of the pinch. */
+ if (unlikely(j >= ARRAY_SIZE(orb->page_table))) {
+ fw_error("page table overflow\n");
+ goto fail_page_table;
+ }
l = min(sg_len, SBP2_MAX_SG_ELEMENT_LENGTH);
orb->page_table[j].low = sg_addr;
orb->page_table[j].high = (l << 16);
}
}
- size = sizeof(orb->page_table[0]) * j;
+ fw_memcpy_to_be32(orb->page_table, orb->page_table,
+ sizeof(orb->page_table[0]) * j);
+ orb->page_table_bus =
+ dma_map_single(device->card->device, orb->page_table,
+ sizeof(orb->page_table), DMA_TO_DEVICE);
+ if (dma_mapping_error(orb->page_table_bus))
+ goto fail_page_table;
/*
* The data_descriptor pointer is the one case where we need
* initiator (i.e. us), but data_descriptor can refer to data
* on other nodes so we need to put our ID in descriptor.high.
*/
-
- orb->page_table_bus =
- dma_map_single(device->card->device, orb->page_table,
- size, DMA_TO_DEVICE);
- if (dma_mapping_error(orb->page_table_bus))
- goto fail_page_table;
orb->request.data_descriptor.high = sd->address_high;
orb->request.data_descriptor.low = orb->page_table_bus;
orb->request.misc |=
COMMAND_ORB_PAGE_TABLE_PRESENT |
COMMAND_ORB_DATA_SIZE(j);
- fw_memcpy_to_be32(orb->page_table, orb->page_table, size);
-
return 0;
fail_page_table:
* transfer direction not handled.
*/
if (cmd->sc_data_direction == DMA_BIDIRECTIONAL) {
- fw_error("Cannot handle DMA_BIDIRECTIONAL - rejecting command");
+ fw_error("Can't handle DMA_BIDIRECTIONAL, rejecting command\n");
cmd->result = DID_ERROR << 16;
done(cmd);
return 0;
/* Initialize rcode to something not RCODE_COMPLETE. */
orb->base.rcode = -1;
- orb->base.request_bus =
- dma_map_single(device->card->device, &orb->request,
- sizeof(orb->request), DMA_TO_DEVICE);
- if (dma_mapping_error(orb->base.request_bus))
- goto fail_mapping;
orb->unit = unit;
orb->done = done;
* if we set this to max_speed + 7, we get the right value.
*/
orb->request.misc =
- COMMAND_ORB_MAX_PAYLOAD(device->node->max_speed + 7) |
- COMMAND_ORB_SPEED(device->node->max_speed) |
+ COMMAND_ORB_MAX_PAYLOAD(device->max_speed + 7) |
+ COMMAND_ORB_SPEED(device->max_speed) |
COMMAND_ORB_NOTIFY;
if (cmd->sc_data_direction == DMA_FROM_DEVICE)
COMMAND_ORB_DIRECTION(SBP2_DIRECTION_TO_MEDIA);
if (cmd->use_sg && sbp2_command_orb_map_scatterlist(orb) < 0)
- goto fail_map_payload;
+ goto fail_mapping;
fw_memcpy_to_be32(&orb->request, &orb->request, sizeof(orb->request));
memcpy(orb->request.command_block, cmd->cmnd, COMMAND_SIZE(*cmd->cmnd));
orb->base.callback = complete_command_orb;
+ orb->base.request_bus =
+ dma_map_single(device->card->device, &orb->request,
+ sizeof(orb->request), DMA_TO_DEVICE);
+ if (dma_mapping_error(orb->base.request_bus))
+ goto fail_mapping;
sbp2_send_orb(&orb->base, unit, sd->node_id, sd->generation,
sd->command_block_agent_address + SBP2_ORB_POINTER);
return 0;
- fail_map_payload:
- dma_unmap_single(device->card->device, orb->base.request_bus,
- sizeof(orb->request), DMA_TO_DEVICE);
fail_mapping:
kfree(orb);
fail_alloc:
fw_notify("setting fix_capacity for %s\n", unit->device.bus_id);
sdev->fix_capacity = 1;
}
-
+ if (sd->workarounds & SBP2_WORKAROUND_128K_MAX_TRANS)
+ blk_queue_max_sectors(sdev->request_queue, 128 * 1024 / 512);
return 0;
}
int i;
for (i = 0; i < node->port_count; i++) {
- if (node->ports[i].node == NULL)
+ if (node->ports[i] == NULL)
continue;
- if (node->ports[i].node->max_hops > max_child_hops)
- max_child_hops = node->ports[i].node->max_hops;
+ if (node->ports[i]->max_hops > max_child_hops)
+ max_child_hops = node->ports[i]->max_hops;
- if (node->ports[i].node->max_depth > depths[0]) {
+ if (node->ports[i]->max_depth > depths[0]) {
depths[1] = depths[0];
- depths[0] = node->ports[i].node->max_depth;
- } else if (node->ports[i].node->max_depth > depths[1])
- depths[1] = node->ports[i].node->max_depth;
+ depths[0] = node->ports[i]->max_depth;
+ } else if (node->ports[i]->max_depth > depths[1])
+ depths[1] = node->ports[i]->max_depth;
}
node->max_depth = depths[0] + 1;
struct list_head stack, *h;
u32 *next_sid, *end, q;
int i, port_count, child_port_count, phy_id, parent_count, stack_depth;
- int gap_count, topology_type;
+ int gap_count;
+ bool beta_repeaters_present;
local_node = NULL;
node = NULL;
phy_id = 0;
irm_node = NULL;
gap_count = SELF_ID_GAP_COUNT(*sid);
- topology_type = 0;
+ beta_repeaters_present = false;
while (sid < end) {
next_sid = count_ports(sid, &port_count, &child_port_count);
node = fw_node_create(q, port_count, card->color);
if (node == NULL) {
- fw_error("Out of memory while building topology.");
+ fw_error("Out of memory while building topology.\n");
return NULL;
}
if (SELF_ID_CONTENDER(q))
irm_node = node;
- if (node->phy_speed == SCODE_BETA)
- topology_type |= FW_TOPOLOGY_B;
- else
- topology_type |= FW_TOPOLOGY_A;
-
parent_count = 0;
for (i = 0; i < port_count; i++) {
break;
case SELFID_PORT_CHILD:
- node->ports[i].node = child;
+ node->ports[i] = child;
/*
* Fix up parent reference for this
* child node.
*/
- child->ports[child->color].node = node;
+ child->ports[child->color] = node;
child->color = card->color;
child = fw_node(child->link.next);
break;
list_add_tail(&node->link, &stack);
stack_depth += 1 - child_port_count;
+ if (node->phy_speed == SCODE_BETA &&
+ parent_count + child_port_count > 1)
+ beta_repeaters_present = true;
+
/*
* If all PHYs does not report the same gap count
* setting, we fall back to 63 which will force a gap
card->root_node = node;
card->irm_node = irm_node;
card->gap_count = gap_count;
- card->topology_type = topology_type;
+ card->beta_repeaters_present = beta_repeaters_present;
return local_node;
}
node->color = card->color;
for (i = 0; i < node->port_count; i++) {
- child = node->ports[i].node;
+ child = node->ports[i];
if (!child)
continue;
if (child->color == card->color)
struct fw_node *tree;
int i;
- tree = node1->ports[port].node;
- node0->ports[port].node = tree;
+ tree = node1->ports[port];
+ node0->ports[port] = tree;
for (i = 0; i < tree->port_count; i++) {
- if (tree->ports[i].node == node1) {
- tree->ports[i].node = node0;
+ if (tree->ports[i] == node1) {
+ tree->ports[i] = node0;
break;
}
}
card->irm_node = node0;
for (i = 0; i < node0->port_count; i++) {
- if (node0->ports[i].node && node1->ports[i].node) {
+ if (node0->ports[i] && node1->ports[i]) {
/*
* This port didn't change, queue the
* connected node for further
* investigation.
*/
- if (node0->ports[i].node->color == card->color)
+ if (node0->ports[i]->color == card->color)
continue;
- list_add_tail(&node0->ports[i].node->link,
- &list0);
- list_add_tail(&node1->ports[i].node->link,
- &list1);
- } else if (node0->ports[i].node) {
+ list_add_tail(&node0->ports[i]->link, &list0);
+ list_add_tail(&node1->ports[i]->link, &list1);
+ } else if (node0->ports[i]) {
/*
* The nodes connected here were
* unplugged; unref the lost nodes and
* them.
*/
- for_each_fw_node(card, node0->ports[i].node,
+ for_each_fw_node(card, node0->ports[i],
report_lost_node);
- node0->ports[i].node = NULL;
- } else if (node1->ports[i].node) {
+ node0->ports[i] = NULL;
+ } else if (node1->ports[i]) {
/*
* One or more node were connected to
* this port. Move the new nodes into
* callbacks for them.
*/
move_tree(node0, node1, i);
- for_each_fw_node(card, node0->ports[i].node,
+ for_each_fw_node(card, node0->ports[i],
report_found_node);
}
}
#ifndef __fw_topology_h
#define __fw_topology_h
-enum {
- FW_TOPOLOGY_A = 0x01,
- FW_TOPOLOGY_B = 0x02,
- FW_TOPOLOGY_MIXED = 0x03,
-};
-
enum {
FW_NODE_CREATED = 0x00,
FW_NODE_UPDATED = 0x01,
FW_NODE_LINK_OFF = 0x04,
};
-struct fw_port {
- struct fw_node *node;
- unsigned speed : 3; /* S100, S200, ... S3200 */
-};
-
struct fw_node {
u16 node_id;
u8 color;
u8 port_count;
- unsigned link_on : 1;
- unsigned initiated_reset : 1;
- unsigned b_path : 1;
- u8 phy_speed : 3; /* As in the self ID packet. */
- u8 max_speed : 5; /* Minimum of all phy-speeds and port speeds on
- * the path from the local node to this node. */
+ u8 link_on : 1;
+ u8 initiated_reset : 1;
+ u8 b_path : 1;
+ u8 phy_speed : 2; /* As in the self ID packet. */
+ u8 max_speed : 2; /* Minimum of all phy-speeds on the path from the
+ * local node to this node. */
u8 max_depth : 4; /* Maximum depth to any leaf node */
u8 max_hops : 4; /* Max hops in this sub tree */
atomic_t ref_count;
/* Upper layer specific data. */
void *data;
- struct fw_port ports[0];
+ struct fw_node *ports[0];
};
static inline struct fw_node *
#define fw_notify(s, args...) printk(KERN_NOTICE KBUILD_MODNAME ": " s, ## args)
#define fw_error(s, args...) printk(KERN_ERR KBUILD_MODNAME ": " s, ## args)
-#define fw_debug(s, args...) printk(KERN_DEBUG KBUILD_MODNAME ": " s, ## args)
static inline void
fw_memcpy_from_be32(void *_dst, void *_src, size_t size)
struct fw_node *irm_node;
int color;
int gap_count;
- int topology_type;
+ bool beta_repeaters_present;
int index;
} while (video);
if (found_ohci_card)
- class_device_destroy(hpsb_protocol_class, MKDEV(IEEE1394_MAJOR,
+ device_destroy(hpsb_protocol_class, MKDEV(IEEE1394_MAJOR,
IEEE1394_MINOR_BLOCK_DV1394 * 16 + (host->id << 2)));
}
ohci = (struct ti_ohci *)host->hostdata;
- class_device_create(hpsb_protocol_class, NULL, MKDEV(
- IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)),
- NULL, "dv1394-%d", id);
+ device_create(hpsb_protocol_class, NULL, MKDEV(
+ IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)),
+ "dv1394-%d", id);
dv1394_init(ohci, DV1394_NTSC, MODE_RECEIVE);
dv1394_init(ohci, DV1394_NTSC, MODE_TRANSMIT);
}
SET_MODULE_OWNER(dev);
-
- /* This used to be &host->device in Linux 2.6.20 and before. */
- SET_NETDEV_DEV(dev, host->device.parent);
+ SET_NETDEV_DEV(dev, &host->device);
priv = netdev_priv(dev);
INIT_LIST_HEAD(&priv->ip_node_list);
return retval;
}
-/**
- * hpsb_listen_channel - enable receving a certain isochronous channel
- *
- * Reception is handled through the @hl's iso_receive op.
- */
-int hpsb_listen_channel(struct hpsb_highlevel *hl, struct hpsb_host *host,
- unsigned int channel)
-{
- if (channel > 63) {
- HPSB_ERR("%s called with invalid channel", __FUNCTION__);
- return -EINVAL;
- }
- if (host->iso_listen_count[channel]++ == 0)
- return host->driver->devctl(host, ISO_LISTEN_CHANNEL, channel);
- return 0;
-}
-
-/**
- * hpsb_unlisten_channel - disable receving a certain isochronous channel
- */
-void hpsb_unlisten_channel(struct hpsb_highlevel *hl, struct hpsb_host *host,
- unsigned int channel)
-{
- if (channel > 63) {
- HPSB_ERR("%s called with invalid channel", __FUNCTION__);
- return;
- }
- if (--host->iso_listen_count[channel] == 0)
- host->driver->devctl(host, ISO_UNLISTEN_CHANNEL, channel);
-}
-
static void init_hpsb_highlevel(struct hpsb_host *host)
{
INIT_LIST_HEAD(&dummy_zero_addr.host_list);
read_unlock_irqrestore(&hl_irqs_lock, flags);
}
-void highlevel_iso_receive(struct hpsb_host *host, void *data, size_t length)
-{
- unsigned long flags;
- struct hpsb_highlevel *hl;
- int channel = (((quadlet_t *)data)[0] >> 8) & 0x3f;
-
- read_lock_irqsave(&hl_irqs_lock, flags);
- list_for_each_entry(hl, &hl_irqs, irq_list) {
- if (hl->iso_receive)
- hl->iso_receive(host, channel, data, length);
- }
- read_unlock_irqrestore(&hl_irqs_lock, flags);
-}
-
void highlevel_fcp_request(struct hpsb_host *host, int nodeid, int direction,
void *data, size_t length)
{
struct hpsb_highlevel {
const char *name;
- /* Any of the following pointers can legally be NULL, except for
- * iso_receive which can only be NULL when you don't request
- * channels. */
+ /* Any of the following pointers can legally be NULL. */
/* New host initialized. Will also be called during
* hpsb_register_highlevel for all hosts already installed. */
* You can not expect to be able to do stock hpsb_reads. */
void (*host_reset)(struct hpsb_host *host);
- /* An isochronous packet was received. Channel contains the channel
- * number for your convenience, it is also contained in the included
- * packet header (first quadlet, CRCs are missing). You may get called
- * for channel/host combinations you did not request. */
- void (*iso_receive)(struct hpsb_host *host, int channel,
- quadlet_t *data, size_t length);
-
/* A write request was received on either the FCP_COMMAND (direction =
* 0) or the FCP_RESPONSE (direction = 1) register. The cts arg
* contains the cts field (first byte of data). */
int highlevel_lock64(struct hpsb_host *host, int nodeid, octlet_t *store,
u64 addr, octlet_t data, octlet_t arg, int ext_tcode,
u16 flags);
-void highlevel_iso_receive(struct hpsb_host *host, void *data, size_t length);
void highlevel_fcp_request(struct hpsb_host *host, int nodeid, int direction,
void *data, size_t length);
struct hpsb_address_ops *ops, u64 start, u64 end);
int hpsb_unregister_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host,
u64 start);
-int hpsb_listen_channel(struct hpsb_highlevel *hl, struct hpsb_host *host,
- unsigned int channel);
-void hpsb_unlisten_channel(struct hpsb_highlevel *hl, struct hpsb_host *host,
- unsigned int channel);
void *hpsb_get_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host);
void *hpsb_create_hostinfo(struct hpsb_highlevel *hl, struct hpsb_host *host,
memcpy(&h->device, &nodemgr_dev_template_host, sizeof(h->device));
h->device.parent = dev;
+ set_dev_node(&h->device, dev_to_node(dev));
snprintf(h->device.bus_id, BUS_ID_SIZE, "fw-host%d", h->id);
- h->class_dev.dev = &h->device;
- h->class_dev.class = &hpsb_host_class;
- snprintf(h->class_dev.class_id, BUS_ID_SIZE, "fw-host%d", h->id);
+ h->host_dev.parent = &h->device;
+ h->host_dev.class = &hpsb_host_class;
+ snprintf(h->host_dev.bus_id, BUS_ID_SIZE, "fw-host%d", h->id);
if (device_register(&h->device))
goto fail;
- if (class_device_register(&h->class_dev)) {
+ if (device_register(&h->host_dev)) {
device_unregister(&h->device);
goto fail;
}
host->driver = &dummy_driver;
highlevel_remove_host(host);
- class_device_unregister(&host->class_dev);
+ device_unregister(&host->host_dev);
device_unregister(&host->device);
}
struct timer_list timeout;
unsigned long timeout_interval;
- unsigned char iso_listen_count[64];
-
int node_count; /* number of identified nodes on this bus */
int selfid_count; /* total number of SelfIDs received */
int nodes_active; /* number of nodes with active link layer */
struct hpsb_host_driver *driver;
struct pci_dev *pdev;
struct device device;
- struct class_device class_dev;
+ struct device host_dev;
struct delayed_work delayed_reset;
unsigned config_roms:31;
/* Cancel all outstanding async requests without resetting the bus.
* Return void. */
CANCEL_REQUESTS,
-
- /* Start or stop receiving isochronous channel in arg. Return void.
- * This acts as an optimization hint, hosts are not required not to
- * listen on unrequested channels. */
- ISO_LISTEN_CHANNEL,
- ISO_UNLISTEN_CHANNEL
};
enum isoctl_cmd {
handle_incoming_packet(host, tcode, data, size, write_acked);
break;
-
- case TCODE_ISO_DATA:
- highlevel_iso_receive(host, data, size);
- break;
-
case TCODE_CYCLE_START:
/* simply ignore this packet if it is passed on */
break;
EXPORT_SYMBOL(hpsb_make_lockpacket);
EXPORT_SYMBOL(hpsb_make_lock64packet);
EXPORT_SYMBOL(hpsb_make_phypacket);
-EXPORT_SYMBOL(hpsb_make_isopacket);
EXPORT_SYMBOL(hpsb_read);
EXPORT_SYMBOL(hpsb_write);
EXPORT_SYMBOL(hpsb_packet_success);
EXPORT_SYMBOL(hpsb_register_addrspace);
EXPORT_SYMBOL(hpsb_unregister_addrspace);
EXPORT_SYMBOL(hpsb_allocate_and_register_addrspace);
-EXPORT_SYMBOL(hpsb_listen_channel);
-EXPORT_SYMBOL(hpsb_unlisten_channel);
EXPORT_SYMBOL(hpsb_get_hostinfo);
EXPORT_SYMBOL(hpsb_create_hostinfo);
EXPORT_SYMBOL(hpsb_destroy_hostinfo);
nodeid_t node_id;
- /* Async and Iso types should be clear, raw means send-as-is, do not
- * CRC! Byte swapping shall still be done in this case. */
- enum { hpsb_async, hpsb_iso, hpsb_raw } __attribute__((packed)) type;
+ /* hpsb_raw = send as-is, do not CRC (but still byte-swap it) */
+ enum { hpsb_async, hpsb_raw } __attribute__((packed)) type;
/* Okay, this is core internal and a no care for hosts.
* queued = queued for sending
hpsb_unused, hpsb_queued, hpsb_pending, hpsb_complete
} __attribute__((packed)) state;
- /* These are core internal. */
+ /* These are core-internal. */
signed char tlabel;
signed char ack_code;
unsigned char tcode;
/* Store jiffies for implementing bus timeouts. */
unsigned long sendtime;
- /* Sizes are in bytes. *data can be DMA-mapped. */
+ /* Core-internal. */
size_t allocated_data_size; /* as allocated */
+
+ /* Sizes are in bytes. To be set by caller of hpsb_alloc_packet. */
size_t data_size; /* as filled in */
size_t header_size; /* as filled in, not counting the CRC */
- quadlet_t *data;
+
+ /* Buffers */
+ quadlet_t *data; /* can be DMA-mapped */
quadlet_t header[5];
quadlet_t embedded_data[0]; /* keep as last member */
};
packet->expect_response = 1;
}
-static void fill_iso_packet(struct hpsb_packet *packet, int length, int channel,
- int tag, int sync)
-{
- packet->header[0] = (length << 16) | (tag << 14) | (channel << 8)
- | (TCODE_ISO_DATA << 4) | sync;
-
- packet->header_size = 4;
- packet->data_size = length;
- packet->type = hpsb_iso;
- packet->tcode = TCODE_ISO_DATA;
-}
-
static void fill_phy_packet(struct hpsb_packet *packet, quadlet_t data)
{
packet->header[0] = data;
return p;
}
-struct hpsb_packet *hpsb_make_isopacket(struct hpsb_host *host,
- int length, int channel,
- int tag, int sync)
-{
- struct hpsb_packet *p;
-
- p = hpsb_alloc_packet(length);
- if (!p)
- return NULL;
-
- p->host = host;
- fill_iso_packet(p, length, channel, tag, sync);
-
- p->generation = get_hpsb_generation(host);
-
- return p;
-}
-
/*
* FIXME - these functions should probably read from / write to user space to
* avoid in kernel buffers for user space callers
nodeid_t node, u64 addr, int extcode,
octlet_t *data, octlet_t arg);
struct hpsb_packet *hpsb_make_phypacket(struct hpsb_host *host, quadlet_t data);
-struct hpsb_packet *hpsb_make_isopacket(struct hpsb_host *host, int length,
- int channel, int tag, int sync);
struct hpsb_packet *hpsb_make_writepacket(struct hpsb_host *host,
nodeid_t node, u64 addr,
quadlet_t *buffer, size_t length);
#include <linux/mutex.h>
#include <linux/freezer.h>
#include <asm/atomic.h>
+#include <asm/semaphore.h>
#include "csr.h"
#include "highlevel.h"
* but now we are much simpler because of the LDM.
*/
-static DEFINE_MUTEX(nodemgr_serialize);
-
struct host_info {
struct hpsb_host *host;
struct list_head list;
};
static int nodemgr_bus_match(struct device * dev, struct device_driver * drv);
-static int nodemgr_uevent(struct class_device *cdev, char **envp, int num_envp,
+static int nodemgr_uevent(struct device *dev, char **envp, int num_envp,
char *buffer, int buffer_size);
static void nodemgr_resume_ne(struct node_entry *ne);
static void nodemgr_remove_ne(struct node_entry *ne);
.match = nodemgr_bus_match,
};
-static void host_cls_release(struct class_device *class_dev)
+static void host_cls_release(struct device *dev)
{
- put_device(&container_of((class_dev), struct hpsb_host, class_dev)->device);
+ put_device(&container_of((dev), struct hpsb_host, host_dev)->device);
}
struct class hpsb_host_class = {
.name = "ieee1394_host",
- .release = host_cls_release,
+ .dev_release = host_cls_release,
};
-static void ne_cls_release(struct class_device *class_dev)
+static void ne_cls_release(struct device *dev)
{
- put_device(&container_of((class_dev), struct node_entry, class_dev)->device);
+ put_device(&container_of((dev), struct node_entry, node_dev)->device);
}
static struct class nodemgr_ne_class = {
.name = "ieee1394_node",
- .release = ne_cls_release,
+ .dev_release = ne_cls_release,
};
-static void ud_cls_release(struct class_device *class_dev)
+static void ud_cls_release(struct device *dev)
{
- put_device(&container_of((class_dev), struct unit_directory, class_dev)->device);
+ put_device(&container_of((dev), struct unit_directory, unit_dev)->device);
}
/* The name here is only so that unit directory hotplug works with old
- * style hotplug, which only ever did unit directories anyway. */
+ * style hotplug, which only ever did unit directories anyway.
+ */
static struct class nodemgr_ud_class = {
.name = "ieee1394",
- .release = ud_cls_release,
- .uevent = nodemgr_uevent,
+ .dev_release = ud_cls_release,
+ .dev_uevent = nodemgr_uevent,
};
static struct hpsb_highlevel nodemgr_highlevel;
static void nodemgr_remove_uds(struct node_entry *ne)
{
- struct class_device *cdev;
+ struct device *dev;
struct unit_directory *tmp, *ud;
- /* Iteration over nodemgr_ud_class.children has to be protected by
- * nodemgr_ud_class.sem, but class_device_unregister() will eventually
+ /* Iteration over nodemgr_ud_class.devices has to be protected by
+ * nodemgr_ud_class.sem, but device_unregister() will eventually
* take nodemgr_ud_class.sem too. Therefore pick out one ud at a time,
* release the semaphore, and then unregister the ud. Since this code
* may be called from other contexts besides the knodemgrds, protect the
for (;;) {
ud = NULL;
down(&nodemgr_ud_class.sem);
- list_for_each_entry(cdev, &nodemgr_ud_class.children, node) {
- tmp = container_of(cdev, struct unit_directory,
- class_dev);
+ list_for_each_entry(dev, &nodemgr_ud_class.devices, node) {
+ tmp = container_of(dev, struct unit_directory,
+ unit_dev);
if (tmp->ne == ne) {
ud = tmp;
break;
up(&nodemgr_ud_class.sem);
if (ud == NULL)
break;
- class_device_unregister(&ud->class_dev);
+ device_unregister(&ud->unit_dev);
device_unregister(&ud->device);
}
mutex_unlock(&nodemgr_serialize_remove_uds);
HPSB_DEBUG("Node removed: ID:BUS[" NODE_BUS_FMT "] GUID[%016Lx]",
NODE_BUS_ARGS(ne->host, ne->nodeid), (unsigned long long)ne->guid);
-
nodemgr_remove_uds(ne);
- class_device_unregister(&ne->class_dev);
+ device_unregister(&ne->node_dev);
device_unregister(dev);
put_device(dev);
static int __nodemgr_remove_host_dev(struct device *dev, void *data)
{
- nodemgr_remove_ne(container_of(dev, struct node_entry, device));
+ if (dev->bus == &ieee1394_bus_type)
+ nodemgr_remove_ne(container_of(dev, struct node_entry,
+ device));
return 0;
}
snprintf(ne->device.bus_id, BUS_ID_SIZE, "%016Lx",
(unsigned long long)(ne->guid));
- ne->class_dev.dev = &ne->device;
- ne->class_dev.class = &nodemgr_ne_class;
- snprintf(ne->class_dev.class_id, BUS_ID_SIZE, "%016Lx",
- (unsigned long long)(ne->guid));
+ ne->node_dev.parent = &ne->device;
+ ne->node_dev.class = &nodemgr_ne_class;
+ snprintf(ne->node_dev.bus_id, BUS_ID_SIZE, "%016Lx",
+ (unsigned long long)(ne->guid));
if (device_register(&ne->device))
goto fail_devreg;
- if (class_device_register(&ne->class_dev))
+ if (device_register(&ne->node_dev))
goto fail_classdevreg;
get_device(&ne->device);
static struct node_entry *find_entry_by_guid(u64 guid)
{
- struct class_device *cdev;
+ struct device *dev;
struct node_entry *ne, *ret_ne = NULL;
down(&nodemgr_ne_class.sem);
- list_for_each_entry(cdev, &nodemgr_ne_class.children, node) {
- ne = container_of(cdev, struct node_entry, class_dev);
+ list_for_each_entry(dev, &nodemgr_ne_class.devices, node) {
+ ne = container_of(dev, struct node_entry, node_dev);
if (ne->guid == guid) {
ret_ne = ne;
static struct node_entry *find_entry_by_nodeid(struct hpsb_host *host,
nodeid_t nodeid)
{
- struct class_device *cdev;
+ struct device *dev;
struct node_entry *ne, *ret_ne = NULL;
down(&nodemgr_ne_class.sem);
- list_for_each_entry(cdev, &nodemgr_ne_class.children, node) {
- ne = container_of(cdev, struct node_entry, class_dev);
+ list_for_each_entry(dev, &nodemgr_ne_class.devices, node) {
+ ne = container_of(dev, struct node_entry, node_dev);
if (ne->host == host && ne->nodeid == nodeid) {
ret_ne = ne;
snprintf(ud->device.bus_id, BUS_ID_SIZE, "%s-%u",
ne->device.bus_id, ud->id);
- ud->class_dev.dev = &ud->device;
- ud->class_dev.class = &nodemgr_ud_class;
- snprintf(ud->class_dev.class_id, BUS_ID_SIZE, "%s-%u",
+ ud->unit_dev.parent = &ud->device;
+ ud->unit_dev.class = &nodemgr_ud_class;
+ snprintf(ud->unit_dev.bus_id, BUS_ID_SIZE, "%s-%u",
ne->device.bus_id, ud->id);
if (device_register(&ud->device))
goto fail_devreg;
- if (class_device_register(&ud->class_dev))
+ if (device_register(&ud->unit_dev))
goto fail_classdevreg;
get_device(&ud->device);
#ifdef CONFIG_HOTPLUG
-static int nodemgr_uevent(struct class_device *cdev, char **envp, int num_envp,
+static int nodemgr_uevent(struct device *dev, char **envp, int num_envp,
char *buffer, int buffer_size)
{
struct unit_directory *ud;
/* ieee1394:venNmoNspNverN */
char buf[8 + 1 + 3 + 8 + 2 + 8 + 2 + 8 + 3 + 8 + 1];
- if (!cdev)
+ if (!dev)
return -ENODEV;
- ud = container_of(cdev, struct unit_directory, class_dev);
+ ud = container_of(dev, struct unit_directory, unit_dev);
if (ud->ne->in_limbo || ud->ignore_driver)
return -ENODEV;
#else
-static int nodemgr_uevent(struct class_device *cdev, char **envp, int num_envp,
+static int nodemgr_uevent(struct device *dev, char **envp, int num_envp,
char *buffer, int buffer_size)
{
return -ENODEV;
static void nodemgr_suspend_ne(struct node_entry *ne)
{
- struct class_device *cdev;
+ struct device *dev;
struct unit_directory *ud;
+ struct device_driver *drv;
+ int error;
HPSB_DEBUG("Node suspended: ID:BUS[" NODE_BUS_FMT "] GUID[%016Lx]",
NODE_BUS_ARGS(ne->host, ne->nodeid), (unsigned long long)ne->guid);
WARN_ON(device_create_file(&ne->device, &dev_attr_ne_in_limbo));
down(&nodemgr_ud_class.sem);
- list_for_each_entry(cdev, &nodemgr_ud_class.children, node) {
- ud = container_of(cdev, struct unit_directory, class_dev);
+ list_for_each_entry(dev, &nodemgr_ud_class.devices, node) {
+ ud = container_of(dev, struct unit_directory, unit_dev);
if (ud->ne != ne)
continue;
- if (ud->device.driver &&
- (!ud->device.driver->suspend ||
- ud->device.driver->suspend(&ud->device, PMSG_SUSPEND)))
+ drv = get_driver(ud->device.driver);
+ if (!drv)
+ continue;
+
+ error = 1; /* release if suspend is not implemented */
+ if (drv->suspend) {
+ down(&ud->device.sem);
+ error = drv->suspend(&ud->device, PMSG_SUSPEND);
+ up(&ud->device.sem);
+ }
+ if (error)
device_release_driver(&ud->device);
+ put_driver(drv);
}
up(&nodemgr_ud_class.sem);
}
static void nodemgr_resume_ne(struct node_entry *ne)
{
- struct class_device *cdev;
+ struct device *dev;
struct unit_directory *ud;
+ struct device_driver *drv;
ne->in_limbo = 0;
device_remove_file(&ne->device, &dev_attr_ne_in_limbo);
down(&nodemgr_ud_class.sem);
- list_for_each_entry(cdev, &nodemgr_ud_class.children, node) {
- ud = container_of(cdev, struct unit_directory, class_dev);
+ list_for_each_entry(dev, &nodemgr_ud_class.devices, node) {
+ ud = container_of(dev, struct unit_directory, unit_dev);
if (ud->ne != ne)
continue;
- if (ud->device.driver && ud->device.driver->resume)
- ud->device.driver->resume(&ud->device);
+ drv = get_driver(ud->device.driver);
+ if (!drv)
+ continue;
+
+ if (drv->resume) {
+ down(&ud->device.sem);
+ drv->resume(&ud->device);
+ up(&ud->device.sem);
+ }
+ put_driver(drv);
}
up(&nodemgr_ud_class.sem);
static void nodemgr_update_pdrv(struct node_entry *ne)
{
+ struct device *dev;
struct unit_directory *ud;
+ struct device_driver *drv;
struct hpsb_protocol_driver *pdrv;
- struct class_device *cdev;
+ int error;
down(&nodemgr_ud_class.sem);
- list_for_each_entry(cdev, &nodemgr_ud_class.children, node) {
- ud = container_of(cdev, struct unit_directory, class_dev);
+ list_for_each_entry(dev, &nodemgr_ud_class.devices, node) {
+ ud = container_of(dev, struct unit_directory, unit_dev);
if (ud->ne != ne)
continue;
- if (ud->device.driver) {
- pdrv = container_of(ud->device.driver,
- struct hpsb_protocol_driver,
- driver);
- if (pdrv->update && pdrv->update(ud))
- device_release_driver(&ud->device);
+ drv = get_driver(ud->device.driver);
+ if (!drv)
+ continue;
+
+ error = 0;
+ pdrv = container_of(drv, struct hpsb_protocol_driver, driver);
+ if (pdrv->update) {
+ down(&ud->device.sem);
+ error = pdrv->update(ud);
+ up(&ud->device.sem);
}
+ if (error)
+ device_release_driver(&ud->device);
+ put_driver(drv);
}
up(&nodemgr_ud_class.sem);
}
static void nodemgr_node_probe(struct host_info *hi, int generation)
{
struct hpsb_host *host = hi->host;
- struct class_device *cdev;
+ struct device *dev;
struct node_entry *ne;
/* Do some processing of the nodes we've probed. This pulls them
* improvement...) */
down(&nodemgr_ne_class.sem);
- list_for_each_entry(cdev, &nodemgr_ne_class.children, node) {
- ne = container_of(cdev, struct node_entry, class_dev);
+ list_for_each_entry(dev, &nodemgr_ne_class.devices, node) {
+ ne = container_of(dev, struct node_entry, node_dev);
if (!ne->needs_probe)
nodemgr_probe_ne(hi, ne, generation);
}
- list_for_each_entry(cdev, &nodemgr_ne_class.children, node) {
- ne = container_of(cdev, struct node_entry, class_dev);
+ list_for_each_entry(dev, &nodemgr_ne_class.devices, node) {
+ ne = container_of(dev, struct node_entry, node_dev);
if (ne->needs_probe)
nodemgr_probe_ne(hi, ne, generation);
}
if (kthread_should_stop())
goto exit;
- if (mutex_lock_interruptible(&nodemgr_serialize)) {
- if (try_to_freeze())
- continue;
- goto exit;
- }
-
/* Pause for 1/4 second in 1/16 second intervals,
* to make sure things settle down. */
g = get_hpsb_generation(host);
for (i = 0; i < 4 ; i++) {
if (msleep_interruptible(63) || kthread_should_stop())
- goto unlock_exit;
+ goto exit;
/* Now get the generation in which the node ID's we collect
* are valid. During the bus scan we will use this generation
if (!nodemgr_check_irm_capability(host, reset_cycles) ||
!nodemgr_do_irm_duties(host, reset_cycles)) {
reset_cycles++;
- mutex_unlock(&nodemgr_serialize);
continue;
}
reset_cycles = 0;
/* Update some of our sysfs symlinks */
nodemgr_update_host_dev_links(host);
-
- mutex_unlock(&nodemgr_serialize);
}
-unlock_exit:
- mutex_unlock(&nodemgr_serialize);
exit:
HPSB_VERBOSE("NodeMgr: Exiting thread");
return 0;
*/
int nodemgr_for_each_host(void *data, int (*cb)(struct hpsb_host *, void *))
{
- struct class_device *cdev;
+ struct device *dev;
struct hpsb_host *host;
int error = 0;
down(&hpsb_host_class.sem);
- list_for_each_entry(cdev, &hpsb_host_class.children, node) {
- host = container_of(cdev, struct hpsb_host, class_dev);
+ list_for_each_entry(dev, &hpsb_host_class.devices, node) {
+ host = container_of(dev, struct hpsb_host, host_dev);
if ((error = cb(host, data)))
break;
int length; /* Number of quadlets */
struct device device;
- struct class_device class_dev;
+ struct device unit_dev;
struct csr1212_keyval *ud_kv;
u32 lun; /* logical unit number immediate value */
u32 capabilities;
struct device device;
- struct class_device class_dev;
+ struct device node_dev;
/* Means this node is not attached anymore */
int in_limbo;
#define DBGMSG(fmt, args...) do {} while (0)
#endif
-#ifdef CONFIG_IEEE1394_OHCI_DMA_DEBUG
-#define OHCI_DMA_ALLOC(fmt, args...) \
- HPSB_ERR("%s(%s)alloc(%d): "fmt, OHCI1394_DRIVER_NAME, __FUNCTION__, \
- ++global_outstanding_dmas, ## args)
-#define OHCI_DMA_FREE(fmt, args...) \
- HPSB_ERR("%s(%s)free(%d): "fmt, OHCI1394_DRIVER_NAME, __FUNCTION__, \
- --global_outstanding_dmas, ## args)
-static int global_outstanding_dmas = 0;
-#else
-#define OHCI_DMA_ALLOC(fmt, args...) do {} while (0)
-#define OHCI_DMA_FREE(fmt, args...) do {} while (0)
-#endif
-
/* print general (card independent) information */
#define PRINT_G(level, fmt, args...) \
printk(level "%s: " fmt "\n" , OHCI1394_DRIVER_NAME , ## args)
static int alloc_dma_rcv_ctx(struct ti_ohci *ohci, struct dma_rcv_ctx *d,
enum context_type type, int ctx, int num_desc,
int buf_size, int split_buf_size, int context_base);
-static void stop_dma_rcv_ctx(struct dma_rcv_ctx *d);
static void free_dma_rcv_ctx(struct dma_rcv_ctx *d);
static int alloc_dma_trm_ctx(struct ti_ohci *ohci, struct dma_trm_ctx *d,
initialize_dma_trm_ctx(&ohci->at_req_context);
initialize_dma_trm_ctx(&ohci->at_resp_context);
- /* Initialize IR Legacy DMA channel mask */
- ohci->ir_legacy_channels = 0;
-
/* Accept AR requests from all nodes */
reg_write(ohci, OHCI1394_AsReqFilterHiSet, 0x80000000);
pci_map_single(ohci->dev, packet->data,
packet->data_size,
PCI_DMA_TODEVICE));
- OHCI_DMA_ALLOC("single, block transmit packet");
d->prg_cpu[idx]->end.branchAddress = 0;
d->prg_cpu[idx]->end.status = 0;
d->prg_cpu[idx]->end.address = cpu_to_le32(
pci_map_single(ohci->dev, packet->data,
packet->data_size, PCI_DMA_TODEVICE));
- OHCI_DMA_ALLOC("single, iso transmit packet");
d->prg_cpu[idx]->end.branchAddress = 0;
d->prg_cpu[idx]->end.status = 0;
return -EOVERFLOW;
}
- /* Decide whether we have an iso, a request, or a response packet */
if (packet->type == hpsb_raw)
d = &ohci->at_req_context;
- else if ((packet->tcode == TCODE_ISO_DATA) && (packet->type == hpsb_iso)) {
- /* The legacy IT DMA context is initialized on first
- * use. However, the alloc cannot be run from
- * interrupt context, so we bail out if that is the
- * case. I don't see anyone sending ISO packets from
- * interrupt context anyway... */
-
- if (ohci->it_legacy_context.ohci == NULL) {
- if (in_interrupt()) {
- PRINT(KERN_ERR,
- "legacy IT context cannot be initialized during interrupt");
- return -EINVAL;
- }
-
- if (alloc_dma_trm_ctx(ohci, &ohci->it_legacy_context,
- DMA_CTX_ISO, 0, IT_NUM_DESC,
- OHCI1394_IsoXmitContextBase) < 0) {
- PRINT(KERN_ERR,
- "error initializing legacy IT context");
- return -ENOMEM;
- }
-
- initialize_dma_trm_ctx(&ohci->it_legacy_context);
- }
-
- d = &ohci->it_legacy_context;
- } else if ((packet->tcode & 0x02) && (packet->tcode != TCODE_ISO_DATA))
+ else if ((packet->tcode & 0x02) && (packet->tcode != TCODE_ISO_DATA))
d = &ohci->at_resp_context;
else
d = &ohci->at_req_context;
static int ohci_devctl(struct hpsb_host *host, enum devctl_cmd cmd, int arg)
{
struct ti_ohci *ohci = host->hostdata;
- int retval = 0;
- unsigned long flags;
- int phy_reg;
+ int retval = 0, phy_reg;
switch (cmd) {
case RESET_BUS:
dma_trm_reset(&ohci->at_resp_context);
break;
- case ISO_LISTEN_CHANNEL:
- {
- u64 mask;
- struct dma_rcv_ctx *d = &ohci->ir_legacy_context;
- int ir_legacy_active;
-
- if (arg<0 || arg>63) {
- PRINT(KERN_ERR,
- "%s: IS0 listen channel %d is out of range",
- __FUNCTION__, arg);
- return -EFAULT;
- }
-
- mask = (u64)0x1<<arg;
-
- spin_lock_irqsave(&ohci->IR_channel_lock, flags);
-
- if (ohci->ISO_channel_usage & mask) {
- PRINT(KERN_ERR,
- "%s: IS0 listen channel %d is already used",
- __FUNCTION__, arg);
- spin_unlock_irqrestore(&ohci->IR_channel_lock, flags);
- return -EFAULT;
- }
-
- ir_legacy_active = ohci->ir_legacy_channels;
-
- ohci->ISO_channel_usage |= mask;
- ohci->ir_legacy_channels |= mask;
-
- spin_unlock_irqrestore(&ohci->IR_channel_lock, flags);
-
- if (!ir_legacy_active) {
- if (ohci1394_register_iso_tasklet(ohci,
- &ohci->ir_legacy_tasklet) < 0) {
- PRINT(KERN_ERR, "No IR DMA context available");
- return -EBUSY;
- }
-
- /* the IR context can be assigned to any DMA context
- * by ohci1394_register_iso_tasklet */
- d->ctx = ohci->ir_legacy_tasklet.context;
- d->ctrlSet = OHCI1394_IsoRcvContextControlSet +
- 32*d->ctx;
- d->ctrlClear = OHCI1394_IsoRcvContextControlClear +
- 32*d->ctx;
- d->cmdPtr = OHCI1394_IsoRcvCommandPtr + 32*d->ctx;
- d->ctxtMatch = OHCI1394_IsoRcvContextMatch + 32*d->ctx;
-
- initialize_dma_rcv_ctx(&ohci->ir_legacy_context, 1);
-
- if (printk_ratelimit())
- DBGMSG("IR legacy activated");
- }
-
- spin_lock_irqsave(&ohci->IR_channel_lock, flags);
-
- if (arg>31)
- reg_write(ohci, OHCI1394_IRMultiChanMaskHiSet,
- 1<<(arg-32));
- else
- reg_write(ohci, OHCI1394_IRMultiChanMaskLoSet,
- 1<<arg);
-
- spin_unlock_irqrestore(&ohci->IR_channel_lock, flags);
- DBGMSG("Listening enabled on channel %d", arg);
- break;
- }
- case ISO_UNLISTEN_CHANNEL:
- {
- u64 mask;
-
- if (arg<0 || arg>63) {
- PRINT(KERN_ERR,
- "%s: IS0 unlisten channel %d is out of range",
- __FUNCTION__, arg);
- return -EFAULT;
- }
-
- mask = (u64)0x1<<arg;
-
- spin_lock_irqsave(&ohci->IR_channel_lock, flags);
-
- if (!(ohci->ISO_channel_usage & mask)) {
- PRINT(KERN_ERR,
- "%s: IS0 unlisten channel %d is not used",
- __FUNCTION__, arg);
- spin_unlock_irqrestore(&ohci->IR_channel_lock, flags);
- return -EFAULT;
- }
-
- ohci->ISO_channel_usage &= ~mask;
- ohci->ir_legacy_channels &= ~mask;
-
- if (arg>31)
- reg_write(ohci, OHCI1394_IRMultiChanMaskHiClear,
- 1<<(arg-32));
- else
- reg_write(ohci, OHCI1394_IRMultiChanMaskLoClear,
- 1<<arg);
-
- spin_unlock_irqrestore(&ohci->IR_channel_lock, flags);
- DBGMSG("Listening disabled on channel %d", arg);
-
- if (ohci->ir_legacy_channels == 0) {
- stop_dma_rcv_ctx(&ohci->ir_legacy_context);
- DBGMSG("ISO legacy receive context stopped");
- }
-
- break;
- }
default:
PRINT_G(KERN_ERR, "ohci_devctl cmd %d not implemented yet",
cmd);
list_del_init(&packet->driver_list);
hpsb_packet_sent(ohci->host, packet, ack);
- if (datasize) {
+ if (datasize)
pci_unmap_single(ohci->dev,
cpu_to_le32(d->prg_cpu[d->sent_ind]->end.address),
datasize, PCI_DMA_TODEVICE);
- OHCI_DMA_FREE("single Xmit data packet");
- }
d->sent_ind = (d->sent_ind+1)%d->num_desc;
d->free_prgs++;
spin_unlock_irqrestore(&d->lock, flags);
}
-static void stop_dma_rcv_ctx(struct dma_rcv_ctx *d)
-{
- if (d->ctrlClear) {
- ohci1394_stop_context(d->ohci, d->ctrlClear, NULL);
-
- if (d->type == DMA_CTX_ISO) {
- /* disable interrupts */
- reg_write(d->ohci, OHCI1394_IsoRecvIntMaskClear, 1 << d->ctx);
- ohci1394_unregister_iso_tasklet(d->ohci, &d->ohci->ir_legacy_tasklet);
- } else {
- tasklet_kill(&d->task);
- }
- }
-}
-
-
static void free_dma_rcv_ctx(struct dma_rcv_ctx *d)
{
int i;
if (d->buf_cpu) {
for (i=0; i<d->num_desc; i++)
- if (d->buf_cpu[i] && d->buf_bus[i]) {
+ if (d->buf_cpu[i] && d->buf_bus[i])
pci_free_consistent(
ohci->dev, d->buf_size,
d->buf_cpu[i], d->buf_bus[i]);
- OHCI_DMA_FREE("consistent dma_rcv buf[%d]", i);
- }
kfree(d->buf_cpu);
kfree(d->buf_bus);
}
if (d->prg_cpu) {
for (i=0; i<d->num_desc; i++)
- if (d->prg_cpu[i] && d->prg_bus[i]) {
- pci_pool_free(d->prg_pool, d->prg_cpu[i], d->prg_bus[i]);
- OHCI_DMA_FREE("consistent dma_rcv prg[%d]", i);
- }
+ if (d->prg_cpu[i] && d->prg_bus[i])
+ pci_pool_free(d->prg_pool, d->prg_cpu[i],
+ d->prg_bus[i]);
pci_pool_destroy(d->prg_pool);
- OHCI_DMA_FREE("dma_rcv prg pool");
kfree(d->prg_cpu);
kfree(d->prg_bus);
}
}
num_allocs++;
- OHCI_DMA_ALLOC("dma_rcv prg pool");
-
for (i=0; i<d->num_desc; i++) {
d->buf_cpu[i] = pci_alloc_consistent(ohci->dev,
d->buf_size,
d->buf_bus+i);
- OHCI_DMA_ALLOC("consistent dma_rcv buf[%d]", i);
if (d->buf_cpu[i] != NULL) {
memset(d->buf_cpu[i], 0, d->buf_size);
}
d->prg_cpu[i] = pci_pool_alloc(d->prg_pool, GFP_KERNEL, d->prg_bus+i);
- OHCI_DMA_ALLOC("pool dma_rcv prg[%d]", i);
if (d->prg_cpu[i] != NULL) {
memset(d->prg_cpu[i], 0, sizeof(struct dma_cmd));
spin_lock_init(&d->lock);
- if (type == DMA_CTX_ISO) {
- ohci1394_init_iso_tasklet(&ohci->ir_legacy_tasklet,
- OHCI_ISO_MULTICHANNEL_RECEIVE,
- dma_rcv_tasklet, (unsigned long) d);
- } else {
- d->ctrlSet = context_base + OHCI1394_ContextControlSet;
- d->ctrlClear = context_base + OHCI1394_ContextControlClear;
- d->cmdPtr = context_base + OHCI1394_ContextCommandPtr;
-
- tasklet_init (&d->task, dma_rcv_tasklet, (unsigned long) d);
- }
+ d->ctrlSet = context_base + OHCI1394_ContextControlSet;
+ d->ctrlClear = context_base + OHCI1394_ContextControlClear;
+ d->cmdPtr = context_base + OHCI1394_ContextCommandPtr;
+ tasklet_init(&d->task, dma_rcv_tasklet, (unsigned long) d);
return 0;
}
if (d->prg_cpu) {
for (i=0; i<d->num_desc; i++)
- if (d->prg_cpu[i] && d->prg_bus[i]) {
- pci_pool_free(d->prg_pool, d->prg_cpu[i], d->prg_bus[i]);
- OHCI_DMA_FREE("pool dma_trm prg[%d]", i);
- }
+ if (d->prg_cpu[i] && d->prg_bus[i])
+ pci_pool_free(d->prg_pool, d->prg_cpu[i],
+ d->prg_bus[i]);
pci_pool_destroy(d->prg_pool);
- OHCI_DMA_FREE("dma_trm prg pool");
kfree(d->prg_cpu);
kfree(d->prg_bus);
}
}
num_allocs++;
- OHCI_DMA_ALLOC("dma_rcv prg pool");
-
for (i = 0; i < d->num_desc; i++) {
d->prg_cpu[i] = pci_pool_alloc(d->prg_pool, GFP_KERNEL, d->prg_bus+i);
- OHCI_DMA_ALLOC("pool dma_trm prg[%d]", i);
if (d->prg_cpu[i] != NULL) {
memset(d->prg_cpu[i], 0, sizeof(struct at_dma_prg));
spin_lock_init(&d->lock);
/* initialize tasklet */
- if (type == DMA_CTX_ISO) {
- ohci1394_init_iso_tasklet(&ohci->it_legacy_tasklet, OHCI_ISO_TRANSMIT,
- dma_trm_tasklet, (unsigned long) d);
- if (ohci1394_register_iso_tasklet(ohci,
- &ohci->it_legacy_tasklet) < 0) {
- PRINT(KERN_ERR, "No IT DMA context available");
- free_dma_trm_ctx(d);
- return -EBUSY;
- }
-
- /* IT can be assigned to any context by register_iso_tasklet */
- d->ctx = ohci->it_legacy_tasklet.context;
- d->ctrlSet = OHCI1394_IsoXmitContextControlSet + 16 * d->ctx;
- d->ctrlClear = OHCI1394_IsoXmitContextControlClear + 16 * d->ctx;
- d->cmdPtr = OHCI1394_IsoXmitCommandPtr + 16 * d->ctx;
- } else {
- d->ctrlSet = context_base + OHCI1394_ContextControlSet;
- d->ctrlClear = context_base + OHCI1394_ContextControlClear;
- d->cmdPtr = context_base + OHCI1394_ContextCommandPtr;
- tasklet_init (&d->task, dma_trm_tasklet, (unsigned long)d);
- }
-
+ d->ctrlSet = context_base + OHCI1394_ContextControlSet;
+ d->ctrlClear = context_base + OHCI1394_ContextControlClear;
+ d->cmdPtr = context_base + OHCI1394_ContextCommandPtr;
+ tasklet_init(&d->task, dma_trm_tasklet, (unsigned long)d);
return 0;
}
ohci->csr_config_rom_cpu =
pci_alloc_consistent(ohci->dev, OHCI_CONFIG_ROM_LEN,
&ohci->csr_config_rom_bus);
- OHCI_DMA_ALLOC("consistent csr_config_rom");
if (ohci->csr_config_rom_cpu == NULL)
FAIL(-ENOMEM, "Failed to allocate buffer config rom");
ohci->init_state = OHCI_INIT_HAVE_CONFIG_ROM_BUFFER;
ohci->selfid_buf_cpu =
pci_alloc_consistent(ohci->dev, OHCI1394_SI_DMA_BUF_SIZE,
&ohci->selfid_buf_bus);
- OHCI_DMA_ALLOC("consistent selfid_buf");
-
if (ohci->selfid_buf_cpu == NULL)
FAIL(-ENOMEM, "Failed to allocate DMA buffer for self-id packets");
ohci->init_state = OHCI_INIT_HAVE_SELFID_BUFFER;
ohci->ISO_channel_usage = 0;
spin_lock_init(&ohci->IR_channel_lock);
- /* Allocate the IR DMA context right here so we don't have
- * to do it in interrupt path - note that this doesn't
- * waste much memory and avoids the jugglery required to
- * allocate it in IRQ path. */
- if (alloc_dma_rcv_ctx(ohci, &ohci->ir_legacy_context,
- DMA_CTX_ISO, 0, IR_NUM_DESC,
- IR_BUF_SIZE, IR_SPLIT_BUF_SIZE,
- OHCI1394_IsoRcvContextBase) < 0) {
- FAIL(-ENOMEM, "Cannot allocate IR Legacy DMA context");
- }
-
- /* We hopefully don't have to pre-allocate IT DMA like we did
- * for IR DMA above. Allocate it on-demand and mark inactive. */
- ohci->it_legacy_context.ohci = NULL;
spin_lock_init(&ohci->event_lock);
/*
free_dma_rcv_ctx(&ohci->ar_resp_context);
free_dma_trm_ctx(&ohci->at_req_context);
free_dma_trm_ctx(&ohci->at_resp_context);
- free_dma_rcv_ctx(&ohci->ir_legacy_context);
- free_dma_trm_ctx(&ohci->it_legacy_context);
case OHCI_INIT_HAVE_SELFID_BUFFER:
pci_free_consistent(ohci->dev, OHCI1394_SI_DMA_BUF_SIZE,
ohci->selfid_buf_cpu,
ohci->selfid_buf_bus);
- OHCI_DMA_FREE("consistent selfid_buf");
case OHCI_INIT_HAVE_CONFIG_ROM_BUFFER:
pci_free_consistent(ohci->dev, OHCI_CONFIG_ROM_LEN,
ohci->csr_config_rom_cpu,
ohci->csr_config_rom_bus);
- OHCI_DMA_FREE("consistent csr_config_rom");
case OHCI_INIT_HAVE_IOMAPPING:
iounmap(ohci->registers);
unsigned long ir_multichannel_used; /* ditto */
spinlock_t IR_channel_lock;
- /* iso receive (legacy API) */
- u64 ir_legacy_channels; /* note: this differs from ISO_channel_usage;
- it only accounts for channels listened to
- by the legacy API, so that we can know when
- it is safe to free the legacy API context */
-
- struct dma_rcv_ctx ir_legacy_context;
- struct ohci1394_iso_tasklet ir_legacy_tasklet;
-
/* iso transmit */
int nb_iso_xmit_ctx;
unsigned long it_ctx_usage; /* use test_and_set_bit() for atomicity */
- /* iso transmit (legacy API) */
- struct dma_trm_ctx it_legacy_context;
- struct ohci1394_iso_tasklet it_legacy_tasklet;
-
u64 ISO_channel_usage;
/* IEEE-1394 part follows */
/* Tasklets for iso receive and transmit, used by video1394
* and dv1394 */
-
struct list_head iso_tasklet_list;
spinlock_t iso_tasklet_list_lock;
struct lynx_send_data *d;
struct hpsb_packet *packet;
+#if 0 /* has been removed from ieee1394 core */
d = (what == hpsb_iso ? &lynx->iso_send : &lynx->async);
+#else
+ d = &lynx->async;
+#endif
if (!list_empty(&d->pcl_queue)) {
PRINT(KERN_ERR, lynx->id, "trying to queue a new packet in nonempty fifo");
BUG();
case hpsb_async:
pcl.buffer[0].control |= PCL_CMD_XMT;
break;
+#if 0 /* has been removed from ieee1394 core */
case hpsb_iso:
pcl.buffer[0].control |= PCL_CMD_XMT | PCL_ISOMODE;
break;
+#endif
case hpsb_raw:
pcl.buffer[0].control |= PCL_CMD_UNFXMT;
break;
case hpsb_raw:
d = &lynx->async;
break;
+#if 0 /* has been removed from ieee1394 core */
case hpsb_iso:
d = &lynx->iso_send;
break;
+#endif
default:
PRINT(KERN_ERR, lynx->id, "invalid packet type %d",
packet->type);
}
break;
-
+#if 0 /* has been removed from ieee1394 core */
case ISO_LISTEN_CHANNEL:
spin_lock_irqsave(&lynx->iso_rcv.lock, flags);
spin_unlock_irqrestore(&lynx->iso_rcv.lock, flags);
break;
-
+#endif
default:
PRINT(KERN_ERR, lynx->id, "unknown devctl command %d", cmd);
retval = -1;
pci_unmap_single(lynx->dev, lynx->iso_send.data_dma,
packet->data_size, PCI_DMA_TODEVICE);
}
-
+#if 0 /* has been removed from ieee1394 core */
if (!list_empty(&lynx->iso_send.queue)) {
send_next(lynx, hpsb_iso);
}
-
+#endif
spin_unlock(&lynx->iso_send.queue_lock);
if (pcl.pcl_status & DMA_CHAN_STAT_PKTCMPL) {
u8 __user *fcp_buffer;
- /* old ISO API */
- u64 listen_channels;
- quadlet_t __user *iso_buffer;
- size_t iso_buffer_length;
-
u8 notification; /* (busreset-notification) RAW1394_NOTIFY_OFF/ON */
/* new rawiso API */
static void queue_complete_cb(struct pending_request *req);
-#include <asm/current.h>
-static void print_old_iso_deprecation(void)
-{
- static pid_t p;
-
- if (p == current->pid)
- return;
- p = current->pid;
- printk(KERN_WARNING "raw1394: WARNING - Program \"%s\" uses unsupported"
- " isochronous request types which will be removed in a next"
- " kernel release\n", current->comm);
- printk(KERN_WARNING "raw1394: Update your software to use libraw1394's"
- " newer interface\n");
-}
-
static struct pending_request *__alloc_pending_request(gfp_t flags)
{
struct pending_request *req;
spin_unlock_irqrestore(&host_info_lock, flags);
}
-static void iso_receive(struct hpsb_host *host, int channel, quadlet_t * data,
- size_t length)
-{
- unsigned long flags;
- struct host_info *hi;
- struct file_info *fi;
- struct pending_request *req, *req_next;
- struct iso_block_store *ibs = NULL;
- LIST_HEAD(reqs);
-
- if ((atomic_read(&iso_buffer_size) + length) > iso_buffer_max) {
- HPSB_INFO("dropped iso packet");
- return;
- }
-
- spin_lock_irqsave(&host_info_lock, flags);
- hi = find_host_info(host);
-
- if (hi != NULL) {
- list_for_each_entry(fi, &hi->file_info_list, list) {
- if (!(fi->listen_channels & (1ULL << channel)))
- continue;
-
- req = __alloc_pending_request(GFP_ATOMIC);
- if (!req)
- break;
-
- if (!ibs) {
- ibs = kmalloc(sizeof(*ibs) + length,
- GFP_ATOMIC);
- if (!ibs) {
- kfree(req);
- break;
- }
-
- atomic_add(length, &iso_buffer_size);
- atomic_set(&ibs->refcount, 0);
- ibs->data_size = length;
- memcpy(ibs->data, data, length);
- }
-
- atomic_inc(&ibs->refcount);
-
- req->file_info = fi;
- req->ibs = ibs;
- req->data = ibs->data;
- req->req.type = RAW1394_REQ_ISO_RECEIVE;
- req->req.generation = get_hpsb_generation(host);
- req->req.misc = 0;
- req->req.recvb = ptr2int(fi->iso_buffer);
- req->req.length = min(length, fi->iso_buffer_length);
-
- list_add_tail(&req->list, &reqs);
- }
- }
- spin_unlock_irqrestore(&host_info_lock, flags);
-
- list_for_each_entry_safe(req, req_next, &reqs, list)
- queue_complete_req(req);
-}
-
static void fcp_request(struct hpsb_host *host, int nodeid, int direction,
int cts, u8 * data, size_t length)
{
__u64 sendb;
__u64 recvb;
-} __attribute__((packed));
+}
+#if defined(CONFIG_X86_64) || defined(CONFIG_IA64)
+__attribute__((packed))
+#endif
+;
static const char __user *raw1394_compat_write(const char __user *buf)
{
static int
raw1394_compat_read(const char __user *buf, struct raw1394_request *r)
{
- struct compat_raw1394_req __user *cr = (typeof(cr)) r;
+ struct compat_raw1394_req __user *cr = (typeof(cr)) buf;
if (!access_ok(VERIFY_WRITE, cr, sizeof(struct compat_raw1394_req)) ||
P(type) ||
P(error) ||
req->req.length = 0;
queue_complete_req(req);
- return sizeof(struct raw1394_request);
+ return 0;
}
static int state_initialized(struct file_info *fi, struct pending_request *req)
req->req.generation = atomic_read(&internal_generation);
req->req.length = 0;
queue_complete_req(req);
- return sizeof(struct raw1394_request);
+ return 0;
}
switch (req->req.type) {
}
queue_complete_req(req);
- return sizeof(struct raw1394_request);
-}
-
-static void handle_iso_listen(struct file_info *fi, struct pending_request *req)
-{
- int channel = req->req.misc;
-
- if ((channel > 63) || (channel < -64)) {
- req->req.error = RAW1394_ERROR_INVALID_ARG;
- } else if (channel >= 0) {
- /* allocate channel req.misc */
- if (fi->listen_channels & (1ULL << channel)) {
- req->req.error = RAW1394_ERROR_ALREADY;
- } else {
- if (hpsb_listen_channel
- (&raw1394_highlevel, fi->host, channel)) {
- req->req.error = RAW1394_ERROR_ALREADY;
- } else {
- fi->listen_channels |= 1ULL << channel;
- fi->iso_buffer = int2ptr(req->req.recvb);
- fi->iso_buffer_length = req->req.length;
- }
- }
- } else {
- /* deallocate channel (one's complement neg) req.misc */
- channel = ~channel;
-
- if (fi->listen_channels & (1ULL << channel)) {
- hpsb_unlisten_channel(&raw1394_highlevel, fi->host,
- channel);
- fi->listen_channels &= ~(1ULL << channel);
- } else {
- req->req.error = RAW1394_ERROR_INVALID_ARG;
- }
- }
-
- req->req.length = 0;
- queue_complete_req(req);
+ return 0;
}
static void handle_fcp_listen(struct file_info *fi, struct pending_request *req)
if (req->req.error) {
req->req.length = 0;
queue_complete_req(req);
- return sizeof(struct raw1394_request);
+ return 0;
}
hpsb_set_packet_complete_task(packet,
hpsb_free_tlabel(packet);
queue_complete_req(req);
}
- return sizeof(struct raw1394_request);
-}
-
-static int handle_iso_send(struct file_info *fi, struct pending_request *req,
- int channel)
-{
- unsigned long flags;
- struct hpsb_packet *packet;
-
- packet = hpsb_make_isopacket(fi->host, req->req.length, channel & 0x3f,
- (req->req.misc >> 16) & 0x3,
- req->req.misc & 0xf);
- if (!packet)
- return -ENOMEM;
-
- packet->speed_code = req->req.address & 0x3;
-
- req->packet = packet;
-
- if (copy_from_user(packet->data, int2ptr(req->req.sendb),
- req->req.length)) {
- req->req.error = RAW1394_ERROR_MEMFAULT;
- req->req.length = 0;
- queue_complete_req(req);
- return sizeof(struct raw1394_request);
- }
-
- req->req.length = 0;
- hpsb_set_packet_complete_task(packet,
- (void (*)(void *))queue_complete_req,
- req);
-
- spin_lock_irqsave(&fi->reqlists_lock, flags);
- list_add_tail(&req->list, &fi->req_pending);
- spin_unlock_irqrestore(&fi->reqlists_lock, flags);
-
- /* Update the generation of the packet just before sending. */
- packet->generation = req->req.generation;
-
- if (hpsb_send_packet(packet) < 0) {
- req->req.error = RAW1394_ERROR_SEND_ERROR;
- queue_complete_req(req);
- }
-
- return sizeof(struct raw1394_request);
+ return 0;
}
static int handle_async_send(struct file_info *fi, struct pending_request *req)
req->req.error = RAW1394_ERROR_INVALID_ARG;
req->req.length = 0;
queue_complete_req(req);
- return sizeof(struct raw1394_request);
+ return 0;
}
data_size = req->req.length - header_length;
req->req.error = RAW1394_ERROR_MEMFAULT;
req->req.length = 0;
queue_complete_req(req);
- return sizeof(struct raw1394_request);
+ return 0;
}
if (copy_from_user
req->req.error = RAW1394_ERROR_MEMFAULT;
req->req.length = 0;
queue_complete_req(req);
- return sizeof(struct raw1394_request);
+ return 0;
}
packet->type = hpsb_async;
queue_complete_req(req);
}
- return sizeof(struct raw1394_request);
+ return 0;
}
static int arm_read(struct hpsb_host *host, int nodeid, quadlet_t * buffer,
spin_lock_irqsave(&host_info_lock, flags);
list_add_tail(&addr->addr_list, &fi->addr_list);
spin_unlock_irqrestore(&host_info_lock, flags);
- return sizeof(struct raw1394_request);
+ return 0;
}
retval =
hpsb_register_addrspace(&raw1394_highlevel, fi->host, &arm_ops,
return (-EALREADY);
}
free_pending_request(req); /* immediate success or fail */
- return sizeof(struct raw1394_request);
+ return 0;
}
static int arm_unregister(struct file_info *fi, struct pending_request *req)
vfree(addr->addr_space_buffer);
kfree(addr);
free_pending_request(req); /* immediate success or fail */
- return sizeof(struct raw1394_request);
+ return 0;
}
retval =
hpsb_unregister_addrspace(&raw1394_highlevel, fi->host,
vfree(addr->addr_space_buffer);
kfree(addr);
free_pending_request(req); /* immediate success or fail */
- return sizeof(struct raw1394_request);
+ return 0;
}
/* Copy data from ARM buffer(s) to user buffer. */
* queue no response, and therefore nobody
* will free it. */
free_pending_request(req);
- return sizeof(struct raw1394_request);
+ return 0;
} else {
DBGMSG("arm_get_buf request exceeded mapping");
spin_unlock_irqrestore(&host_info_lock, flags);
* queue no response, and therefore nobody
* will free it. */
free_pending_request(req);
- return sizeof(struct raw1394_request);
+ return 0;
} else {
DBGMSG("arm_set_buf request exceeded mapping");
spin_unlock_irqrestore(&host_info_lock, flags);
(req->req.misc == RAW1394_NOTIFY_ON)) {
fi->notification = (u8) req->req.misc;
free_pending_request(req); /* we have to free the request, because we queue no response, and therefore nobody will free it */
- return sizeof(struct raw1394_request);
+ return 0;
}
/* error EINVAL (22) invalid argument */
return (-EINVAL);
req->req.length = 0;
queue_complete_req(req);
}
- return sizeof(struct raw1394_request);
+ return 0;
}
static int get_config_rom(struct file_info *fi, struct pending_request *req)
{
- int ret = sizeof(struct raw1394_request);
+ int ret = 0;
quadlet_t *data = kmalloc(req->req.length, GFP_KERNEL);
int status;
static int update_config_rom(struct file_info *fi, struct pending_request *req)
{
- int ret = sizeof(struct raw1394_request);
+ int ret = 0;
quadlet_t *data = kmalloc(req->req.length, GFP_KERNEL);
if (!data)
return -ENOMEM;
hpsb_update_config_rom_image(fi->host);
free_pending_request(req);
- return sizeof(struct raw1394_request);
+ return 0;
}
}
/* we have to free the request, because we queue no response,
* and therefore nobody will free it */
free_pending_request(req);
- return sizeof(struct raw1394_request);
+ return 0;
} else {
for (dentry =
fi->csr1212_dirs[dr]->value.directory.dentries_head;
case RAW1394_REQ_ECHO:
queue_complete_req(req);
- return sizeof(struct raw1394_request);
-
- case RAW1394_REQ_ISO_SEND:
- print_old_iso_deprecation();
- return handle_iso_send(fi, req, node);
+ return 0;
case RAW1394_REQ_ARM_REGISTER:
return arm_register(fi, req);
case RAW1394_REQ_RESET_NOTIFY:
return reset_notification(fi, req);
+ case RAW1394_REQ_ISO_SEND:
case RAW1394_REQ_ISO_LISTEN:
- print_old_iso_deprecation();
- handle_iso_listen(fi, req);
- return sizeof(struct raw1394_request);
+ printk(KERN_DEBUG "raw1394: old iso ABI has been removed\n");
+ req->req.error = RAW1394_ERROR_COMPAT;
+ req->req.misc = RAW1394_KERNELAPI_VERSION;
+ queue_complete_req(req);
+ return 0;
case RAW1394_REQ_FCP_LISTEN:
handle_fcp_listen(fi, req);
- return sizeof(struct raw1394_request);
+ return 0;
case RAW1394_REQ_RESET_BUS:
if (req->req.misc == RAW1394_LONG_RESET) {
DBGMSG("busreset called (type: LONG)");
hpsb_reset_bus(fi->host, LONG_RESET);
free_pending_request(req); /* we have to free the request, because we queue no response, and therefore nobody will free it */
- return sizeof(struct raw1394_request);
+ return 0;
}
if (req->req.misc == RAW1394_SHORT_RESET) {
DBGMSG("busreset called (type: SHORT)");
hpsb_reset_bus(fi->host, SHORT_RESET);
free_pending_request(req); /* we have to free the request, because we queue no response, and therefore nobody will free it */
- return sizeof(struct raw1394_request);
+ return 0;
}
/* error EINVAL (22) invalid argument */
return (-EINVAL);
req->req.generation = get_hpsb_generation(fi->host);
req->req.length = 0;
queue_complete_req(req);
- return sizeof(struct raw1394_request);
+ return 0;
}
switch (req->req.type) {
if (req->req.length == 0) {
req->req.error = RAW1394_ERROR_INVALID_ARG;
queue_complete_req(req);
- return sizeof(struct raw1394_request);
+ return 0;
}
return handle_async_request(fi, req, node);
{
struct file_info *fi = (struct file_info *)file->private_data;
struct pending_request *req;
- ssize_t retval = 0;
+ ssize_t retval = -EBADFD;
#ifdef CONFIG_COMPAT
if (count == sizeof(struct compat_raw1394_req) &&
if (retval < 0) {
free_pending_request(req);
+ } else {
+ BUG_ON(retval);
+ retval = count;
}
return retval;
return -EINVAL;
}
+#ifdef CONFIG_COMPAT
+struct raw1394_iso_packets32 {
+ __u32 n_packets;
+ compat_uptr_t infos;
+} __attribute__((packed));
+
+struct raw1394_cycle_timer32 {
+ __u32 cycle_timer;
+ __u64 local_time;
+}
+#if defined(CONFIG_X86_64) || defined(CONFIG_IA64)
+__attribute__((packed))
+#endif
+;
+
+#define RAW1394_IOC_ISO_RECV_PACKETS32 \
+ _IOW ('#', 0x25, struct raw1394_iso_packets32)
+#define RAW1394_IOC_ISO_XMIT_PACKETS32 \
+ _IOW ('#', 0x27, struct raw1394_iso_packets32)
+#define RAW1394_IOC_GET_CYCLE_TIMER32 \
+ _IOR ('#', 0x30, struct raw1394_cycle_timer32)
+
+static long raw1394_iso_xmit_recv_packets32(struct file *file, unsigned int cmd,
+ struct raw1394_iso_packets32 __user *arg)
+{
+ compat_uptr_t infos32;
+ void *infos;
+ long err = -EFAULT;
+ struct raw1394_iso_packets __user *dst = compat_alloc_user_space(sizeof(struct raw1394_iso_packets));
+
+ if (!copy_in_user(&dst->n_packets, &arg->n_packets, sizeof arg->n_packets) &&
+ !copy_from_user(&infos32, &arg->infos, sizeof infos32)) {
+ infos = compat_ptr(infos32);
+ if (!copy_to_user(&dst->infos, &infos, sizeof infos))
+ err = raw1394_ioctl(NULL, file, cmd, (unsigned long)dst);
+ }
+ return err;
+}
+
+static long raw1394_read_cycle_timer32(struct file_info *fi, void __user * uaddr)
+{
+ struct raw1394_cycle_timer32 ct;
+ int err;
+
+ err = hpsb_read_cycle_timer(fi->host, &ct.cycle_timer, &ct.local_time);
+ if (!err)
+ if (copy_to_user(uaddr, &ct, sizeof(ct)))
+ err = -EFAULT;
+ return err;
+}
+
+static long raw1394_compat_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ struct file_info *fi = file->private_data;
+ void __user *argp = (void __user *)arg;
+ long err;
+
+ lock_kernel();
+ switch (cmd) {
+ /* These requests have same format as long as 'int' has same size. */
+ case RAW1394_IOC_ISO_RECV_INIT:
+ case RAW1394_IOC_ISO_RECV_START:
+ case RAW1394_IOC_ISO_RECV_LISTEN_CHANNEL:
+ case RAW1394_IOC_ISO_RECV_UNLISTEN_CHANNEL:
+ case RAW1394_IOC_ISO_RECV_SET_CHANNEL_MASK:
+ case RAW1394_IOC_ISO_RECV_RELEASE_PACKETS:
+ case RAW1394_IOC_ISO_RECV_FLUSH:
+ case RAW1394_IOC_ISO_XMIT_RECV_STOP:
+ case RAW1394_IOC_ISO_XMIT_INIT:
+ case RAW1394_IOC_ISO_XMIT_START:
+ case RAW1394_IOC_ISO_XMIT_SYNC:
+ case RAW1394_IOC_ISO_GET_STATUS:
+ case RAW1394_IOC_ISO_SHUTDOWN:
+ case RAW1394_IOC_ISO_QUEUE_ACTIVITY:
+ err = raw1394_ioctl(NULL, file, cmd, arg);
+ break;
+ /* These request have different format. */
+ case RAW1394_IOC_ISO_RECV_PACKETS32:
+ err = raw1394_iso_xmit_recv_packets32(file, RAW1394_IOC_ISO_RECV_PACKETS, argp);
+ break;
+ case RAW1394_IOC_ISO_XMIT_PACKETS32:
+ err = raw1394_iso_xmit_recv_packets32(file, RAW1394_IOC_ISO_XMIT_PACKETS, argp);
+ break;
+ case RAW1394_IOC_GET_CYCLE_TIMER32:
+ err = raw1394_read_cycle_timer32(fi, argp);
+ break;
+ default:
+ err = -EINVAL;
+ break;
+ }
+ unlock_kernel();
+
+ return err;
+}
+#endif
+
static unsigned int raw1394_poll(struct file *file, poll_table * pt)
{
struct file_info *fi = file->private_data;
if (fi->iso_state != RAW1394_ISO_INACTIVE)
raw1394_iso_shutdown(fi);
- for (i = 0; i < 64; i++) {
- if (fi->listen_channels & (1ULL << i)) {
- hpsb_unlisten_channel(&raw1394_highlevel, fi->host, i);
- }
- }
-
spin_lock_irqsave(&host_info_lock, flags);
- fi->listen_channels = 0;
fail = 0;
/* set address-entries invalid */
.add_host = add_host,
.remove_host = remove_host,
.host_reset = host_reset,
- .iso_receive = iso_receive,
.fcp_request = fcp_request,
};
.write = raw1394_write,
.mmap = raw1394_mmap,
.ioctl = raw1394_ioctl,
- // .compat_ioctl = ... someone needs to do this
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = raw1394_compat_ioctl,
+#endif
.poll = raw1394_poll,
.open = raw1394_open,
.release = raw1394_release,
hpsb_register_highlevel(&raw1394_highlevel);
if (IS_ERR
- (class_device_create
- (hpsb_protocol_class, NULL,
- MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16), NULL,
+ (device_create(
+ hpsb_protocol_class, NULL,
+ MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16),
RAW1394_DEVICE_NAME))) {
ret = -EFAULT;
goto out_unreg;
goto out;
out_dev:
- class_device_destroy(hpsb_protocol_class,
- MKDEV(IEEE1394_MAJOR,
- IEEE1394_MINOR_BLOCK_RAW1394 * 16));
+ device_destroy(hpsb_protocol_class,
+ MKDEV(IEEE1394_MAJOR,
+ IEEE1394_MINOR_BLOCK_RAW1394 * 16));
out_unreg:
hpsb_unregister_highlevel(&raw1394_highlevel);
out:
static void __exit cleanup_raw1394(void)
{
- class_device_destroy(hpsb_protocol_class,
- MKDEV(IEEE1394_MAJOR,
- IEEE1394_MINOR_BLOCK_RAW1394 * 16));
+ device_destroy(hpsb_protocol_class,
+ MKDEV(IEEE1394_MAJOR,
+ IEEE1394_MINOR_BLOCK_RAW1394 * 16));
cdev_del(&raw1394_cdev);
hpsb_unregister_highlevel(&raw1394_highlevel);
hpsb_unregister_protocol(&raw1394_driver);
#define RAW1394_REQ_ASYNC_WRITE 101
#define RAW1394_REQ_LOCK 102
#define RAW1394_REQ_LOCK64 103
-#define RAW1394_REQ_ISO_SEND 104
+#define RAW1394_REQ_ISO_SEND 104 /* removed ABI, now a no-op */
#define RAW1394_REQ_ASYNC_SEND 105
#define RAW1394_REQ_ASYNC_STREAM 106
-#define RAW1394_REQ_ISO_LISTEN 200
+#define RAW1394_REQ_ISO_LISTEN 200 /* removed ABI, now a no-op */
#define RAW1394_REQ_FCP_LISTEN 201
#define RAW1394_REQ_RESET_BUS 202
#define RAW1394_REQ_GET_ROM 203
"(3 = 800Mb/s, 2 = 400Mb/s, 1 = 200Mb/s, 0 = 100Mb/s)");
/*
- * Set serialize_io to 1 if you'd like only one scsi command sent
- * down to us at a time (debugging). This might be necessary for very
- * badly behaved sbp2 devices.
+ * Set serialize_io to 0 or N to use dynamically appended lists of command ORBs.
+ * This is and always has been buggy in multiple subtle ways. See above TODOs.
*/
static int sbp2_serialize_io = 1;
-module_param_named(serialize_io, sbp2_serialize_io, int, 0444);
-MODULE_PARM_DESC(serialize_io, "Serialize I/O coming from scsi drivers "
- "(default = 1, faster = 0)");
+module_param_named(serialize_io, sbp2_serialize_io, bool, 0444);
+MODULE_PARM_DESC(serialize_io, "Serialize requests coming from SCSI drivers "
+ "(default = Y, faster but buggy = N)");
/*
* Bump up max_sectors if you'd like to support very large sized
* are possible on OXFW911 and newer Oxsemi bridges.
*/
static int sbp2_exclusive_login = 1;
-module_param_named(exclusive_login, sbp2_exclusive_login, int, 0644);
+module_param_named(exclusive_login, sbp2_exclusive_login, bool, 0644);
MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device "
- "(default = 1)");
+ "(default = Y, use N for concurrent initiators)");
/*
* If any of the following workarounds is required for your device to work,
#define ORB_SET_LUN(v) ((v) & 0xffff)
#define ORB_SET_FUNCTION(v) (((v) & 0xf) << 16)
#define ORB_SET_RECONNECT(v) (((v) & 0xf) << 20)
-#define ORB_SET_EXCLUSIVE(v) (((v) & 0x1) << 28)
+#define ORB_SET_EXCLUSIVE(v) ((v) ? 1 << 28 : 0)
#define ORB_SET_LOGIN_RESP_LENGTH(v) ((v) & 0xffff)
#define ORB_SET_PASSWD_LENGTH(v) (((v) & 0xffff) << 16)
hpsb_set_hostinfo_key(&video1394_highlevel, host, ohci->host->id);
minor = IEEE1394_MINOR_BLOCK_VIDEO1394 * 16 + ohci->host->id;
- class_device_create(hpsb_protocol_class, NULL, MKDEV(
- IEEE1394_MAJOR, minor),
- NULL, "%s-%d", VIDEO1394_DRIVER_NAME, ohci->host->id);
+ device_create(hpsb_protocol_class, NULL,
+ MKDEV(IEEE1394_MAJOR, minor),
+ "%s-%d", VIDEO1394_DRIVER_NAME, ohci->host->id);
}
struct ti_ohci *ohci = hpsb_get_hostinfo(&video1394_highlevel, host);
if (ohci)
- class_device_destroy(hpsb_protocol_class, MKDEV(IEEE1394_MAJOR,
- IEEE1394_MINOR_BLOCK_VIDEO1394 * 16 + ohci->host->id));
+ device_destroy(hpsb_protocol_class, MKDEV(IEEE1394_MAJOR,
+ IEEE1394_MINOR_BLOCK_VIDEO1394 * 16 + ohci->host->id));
return;
}
#define FW_CDEV_EVENT_REQUEST 0x02
#define FW_CDEV_EVENT_ISO_INTERRUPT 0x03
-/* The 'closure' fields are for user space to use. Data passed in the
- * 'closure' field for a request will be returned in the corresponding
- * event. It's a 64-bit type so that it's a fixed size type big
- * enough to hold a pointer on all platforms. */
-
+/**
+ * struct fw_cdev_event_common - Common part of all fw_cdev_event_ types
+ * @closure: For arbitrary use by userspace
+ * @type: Discriminates the fw_cdev_event_ types
+ *
+ * This struct may be used to access generic members of all fw_cdev_event_
+ * types regardless of the specific type.
+ *
+ * Data passed in the @closure field for a request will be returned in the
+ * corresponding event. It is big enough to hold a pointer on all platforms.
+ * The ioctl used to set @closure depends on the @type of event.
+ */
struct fw_cdev_event_common {
__u64 closure;
__u32 type;
};
+/**
+ * struct fw_cdev_event_bus_reset - Sent when a bus reset occurred
+ * @closure: See &fw_cdev_event_common; set by %FW_CDEV_IOC_GET_INFO ioctl
+ * @type: See &fw_cdev_event_common; always %FW_CDEV_EVENT_BUS_RESET
+ * @node_id: New node ID of this node
+ * @local_node_id: Node ID of the local node, i.e. of the controller
+ * @bm_node_id: Node ID of the bus manager
+ * @irm_node_id: Node ID of the iso resource manager
+ * @root_node_id: Node ID of the root node
+ * @generation: New bus generation
+ *
+ * This event is sent when the bus the device belongs to goes through a bus
+ * reset. It provides information about the new bus configuration, such as
+ * new node ID for this device, new root ID, and others.
+ */
struct fw_cdev_event_bus_reset {
__u64 closure;
__u32 type;
__u32 generation;
};
+/**
+ * struct fw_cdev_event_response - Sent when a response packet was received
+ * @closure: See &fw_cdev_event_common;
+ * set by %FW_CDEV_IOC_SEND_REQUEST ioctl
+ * @type: See &fw_cdev_event_common; always %FW_CDEV_EVENT_RESPONSE
+ * @rcode: Response code returned by the remote node
+ * @length: Data length, i.e. the response's payload size in bytes
+ * @data: Payload data, if any
+ *
+ * This event is sent when the stack receives a response to an outgoing request
+ * sent by %FW_CDEV_IOC_SEND_REQUEST ioctl. The payload data for responses
+ * carrying data (read and lock responses) follows immediately and can be
+ * accessed through the @data field.
+ */
struct fw_cdev_event_response {
__u64 closure;
__u32 type;
__u32 data[0];
};
+/**
+ * struct fw_cdev_event_request - Sent on incoming request to an address region
+ * @closure: See &fw_cdev_event_common; set by %FW_CDEV_IOC_ALLOCATE ioctl
+ * @type: See &fw_cdev_event_common; always %FW_CDEV_EVENT_REQUEST
+ * @tcode: Transaction code of the incoming request
+ * @offset: The offset into the 48-bit per-node address space
+ * @handle: Reference to the kernel-side pending request
+ * @length: Data length, i.e. the request's payload size in bytes
+ * @data: Incoming data, if any
+ *
+ * This event is sent when the stack receives an incoming request to an address
+ * region registered using the %FW_CDEV_IOC_ALLOCATE ioctl. The request is
+ * guaranteed to be completely contained in the specified region. Userspace is
+ * responsible for sending the response by %FW_CDEV_IOC_SEND_RESPONSE ioctl,
+ * using the same @handle.
+ *
+ * The payload data for requests carrying data (write and lock requests)
+ * follows immediately and can be accessed through the @data field.
+ */
struct fw_cdev_event_request {
__u64 closure;
__u32 type;
__u32 data[0];
};
+/**
+ * struct fw_cdev_event_iso_interrupt - Sent when an iso packet was completed
+ * @closure: See &fw_cdev_event_common;
+ * set by %FW_CDEV_CREATE_ISO_CONTEXT ioctl
+ * @type: See &fw_cdev_event_common; always %FW_CDEV_EVENT_ISO_INTERRUPT
+ * @cycle: Cycle counter of the interrupt packet
+ * @header_length: Total length of following headers, in bytes
+ * @header: Stripped headers, if any
+ *
+ * This event is sent when the controller has completed an &fw_cdev_iso_packet
+ * with the %FW_CDEV_ISO_INTERRUPT bit set. In the receive case, the headers
+ * stripped of all packets up until and including the interrupt packet are
+ * returned in the @header field.
+ */
struct fw_cdev_event_iso_interrupt {
__u64 closure;
__u32 type;
__u32 cycle;
- __u32 header_length; /* Length in bytes of following headers. */
+ __u32 header_length;
__u32 header[0];
};
+/**
+ * union fw_cdev_event - Convenience union of fw_cdev_event_ types
+ * @common: Valid for all types
+ * @bus_reset: Valid if @common.type == %FW_CDEV_EVENT_BUS_RESET
+ * @response: Valid if @common.type == %FW_CDEV_EVENT_RESPONSE
+ * @request: Valid if @common.type == %FW_CDEV_EVENT_REQUEST
+ * @iso_interrupt: Valid if @common.type == %FW_CDEV_EVENT_ISO_INTERRUPT
+ *
+ * Convenience union for userspace use. Events could be read(2) into a char
+ * buffer and then cast to this union for further processing.
+ */
union fw_cdev_event {
struct fw_cdev_event_common common;
struct fw_cdev_event_bus_reset bus_reset;
*/
#define FW_CDEV_VERSION 1
+/**
+ * struct fw_cdev_get_info - General purpose information ioctl
+ * @version: The version field is just a running serial number.
+ * We never break backwards compatibility, but may add more
+ * structs and ioctls in later revisions.
+ * @rom_length: If @rom is non-zero, at most rom_length bytes of configuration
+ * ROM will be copied into that user space address. In either
+ * case, @rom_length is updated with the actual length of the
+ * configuration ROM.
+ * @rom: If non-zero, address of a buffer to be filled by a copy of the
+ * local node's configuration ROM
+ * @bus_reset: If non-zero, address of a buffer to be filled by a
+ * &struct fw_cdev_event_bus_reset with the current state
+ * of the bus. This does not cause a bus reset to happen.
+ * @bus_reset_closure: Value of &closure in this and subsequent bus reset events
+ * @card: The index of the card this device belongs to
+ */
struct fw_cdev_get_info {
- /* The version field is just a running serial number. We
- * never break backwards compatibility. Userspace passes in
- * the version it expects and the kernel passes back the
- * highest version it can provide. Even if the structs in
- * this interface are extended in a later version, the kernel
- * will not copy back more data than what was present in the
- * interface version userspace expects. */
__u32 version;
-
- /* If non-zero, at most rom_length bytes of config rom will be
- * copied into that user space address. In either case,
- * rom_length is updated with the actual length of the config
- * rom. */
__u32 rom_length;
__u64 rom;
-
- /* If non-zero, a fw_cdev_event_bus_reset struct will be
- * copied here with the current state of the bus. This does
- * not cause a bus reset to happen. The value of closure in
- * this and sub-sequent bus reset events is set to
- * bus_reset_closure. */
__u64 bus_reset;
__u64 bus_reset_closure;
-
- /* The index of the card this devices belongs to. */
__u32 card;
};
+/**
+ * struct fw_cdev_send_request - Send an asynchronous request packet
+ * @tcode: Transaction code of the request
+ * @length: Length of outgoing payload, in bytes
+ * @offset: 48-bit offset at destination node
+ * @closure: Passed back to userspace in the response event
+ * @data: Userspace pointer to payload
+ * @generation: The bus generation where packet is valid
+ *
+ * Send a request to the device. This ioctl implements all outgoing requests.
+ * Both quadlet and block request specify the payload as a pointer to the data
+ * in the @data field. Once the transaction completes, the kernel writes an
+ * &fw_cdev_event_request event back. The @closure field is passed back to
+ * user space in the response event.
+ */
struct fw_cdev_send_request {
__u32 tcode;
__u32 length;
__u32 generation;
};
+/**
+ * struct fw_cdev_send_response - Send an asynchronous response packet
+ * @rcode: Response code as determined by the userspace handler
+ * @length: Length of outgoing payload, in bytes
+ * @data: Userspace pointer to payload
+ * @handle: The handle from the &fw_cdev_event_request
+ *
+ * Send a response to an incoming request. By setting up an address range using
+ * the %FW_CDEV_IOC_ALLOCATE ioctl, userspace can listen for incoming requests. An
+ * incoming request will generate an %FW_CDEV_EVENT_REQUEST, and userspace must
+ * send a reply using this ioctl. The event has a handle to the kernel-side
+ * pending transaction, which should be used with this ioctl.
+ */
struct fw_cdev_send_response {
__u32 rcode;
__u32 length;
__u32 handle;
};
+/**
+ * struct fw_cdev_allocate - Allocate a CSR address range
+ * @offset: Start offset of the address range
+ * @closure: To be passed back to userspace in request events
+ * @length: Length of the address range, in bytes
+ * @handle: Handle to the allocation, written by the kernel
+ *
+ * Allocate an address range in the 48-bit address space on the local node
+ * (the controller). This allows userspace to listen for requests with an
+ * offset within that address range. When the kernel receives a request
+ * within the range, an &fw_cdev_event_request event will be written back.
+ * The @closure field is passed back to userspace in the response event.
+ * The @handle field is an out parameter, returning a handle to the allocated
+ * range to be used for later deallocation of the range.
+ */
struct fw_cdev_allocate {
__u64 offset;
__u64 closure;
__u32 handle;
};
+/**
+ * struct fw_cdev_deallocate - Free an address range allocation
+ * @handle: Handle to the address range, as returned by the kernel when the
+ * range was allocated
+ */
struct fw_cdev_deallocate {
__u32 handle;
};
#define FW_CDEV_LONG_RESET 0
#define FW_CDEV_SHORT_RESET 1
+/**
+ * struct fw_cdev_initiate_bus_reset - Initiate a bus reset
+ * @type: %FW_CDEV_SHORT_RESET or %FW_CDEV_LONG_RESET
+ *
+ * Initiate a bus reset for the bus this device is on. The bus reset can be
+ * either the original (long) bus reset or the arbitrated (short) bus reset
+ * introduced in 1394a-2000.
+ */
struct fw_cdev_initiate_bus_reset {
- __u32 type;
+ __u32 type; /* FW_CDEV_SHORT_RESET or FW_CDEV_LONG_RESET */
};
+/**
+ * struct fw_cdev_add_descriptor - Add contents to the local node's config ROM
+ * @immediate: If non-zero, immediate key to insert before pointer
+ * @key: Upper 8 bits of root directory pointer
+ * @data: Userspace pointer to contents of descriptor block
+ * @length: Length of descriptor block data, in bytes
+ * @handle: Handle to the descriptor, written by the kernel
+ *
+ * Add a descriptor block and optionally a preceding immediate key to the local
+ * node's configuration ROM.
+ *
+ * The @key field specifies the upper 8 bits of the descriptor root directory
+ * pointer and the @data and @length fields specify the contents. The @key
+ * should be of the form 0xXX000000. The offset part of the root directory entry
+ * will be filled in by the kernel.
+ *
+ * If not 0, the @immediate field specifies an immediate key which will be
+ * inserted before the root directory pointer.
+ *
+ * If successful, the kernel adds the descriptor and writes back a handle to the
+ * kernel-side object to be used for later removal of the descriptor block and
+ * immediate key.
+ */
struct fw_cdev_add_descriptor {
__u32 immediate;
__u32 key;
__u32 handle;
};
+/**
+ * struct fw_cdev_remove_descriptor - Remove contents from the configuration ROM
+ * @handle: Handle to the descriptor, as returned by the kernel when the
+ * descriptor was added
+ *
+ * Remove a descriptor block and accompanying immediate key from the local
+ * node's configuration ROM.
+ */
struct fw_cdev_remove_descriptor {
__u32 handle;
};
#define FW_CDEV_ISO_CONTEXT_TRANSMIT 0
#define FW_CDEV_ISO_CONTEXT_RECEIVE 1
-#define FW_CDEV_ISO_CONTEXT_MATCH_TAG0 1
-#define FW_CDEV_ISO_CONTEXT_MATCH_TAG1 2
-#define FW_CDEV_ISO_CONTEXT_MATCH_TAG2 4
-#define FW_CDEV_ISO_CONTEXT_MATCH_TAG3 8
-#define FW_CDEV_ISO_CONTEXT_MATCH_ALL_TAGS 15
-
+/**
+ * struct fw_cdev_create_iso_context - Create a context for isochronous IO
+ * @type: %FW_CDEV_ISO_CONTEXT_TRANSMIT or %FW_CDEV_ISO_CONTEXT_RECEIVE
+ * @header_size: Header size to strip for receive contexts
+ * @channel: Channel to bind to
+ * @speed: Speed to transmit at
+ * @closure: To be returned in &fw_cdev_event_iso_interrupt
+ * @handle: Handle to context, written back by kernel
+ *
+ * Prior to sending or receiving isochronous I/O, a context must be created.
+ * The context records information about the transmit or receive configuration
+ * and typically maps to an underlying hardware resource. A context is set up
+ * for either sending or receiving. It is bound to a specific isochronous
+ * channel.
+ *
+ * If a context was successfully created, the kernel writes back a handle to the
+ * context, which must be passed in for subsequent operations on that context.
+ */
struct fw_cdev_create_iso_context {
__u32 type;
__u32 header_size;
#define FW_CDEV_ISO_PAYLOAD_LENGTH(v) (v)
#define FW_CDEV_ISO_INTERRUPT (1 << 16)
#define FW_CDEV_ISO_SKIP (1 << 17)
+#define FW_CDEV_ISO_SYNC (1 << 17)
#define FW_CDEV_ISO_TAG(v) ((v) << 18)
#define FW_CDEV_ISO_SY(v) ((v) << 20)
#define FW_CDEV_ISO_HEADER_LENGTH(v) ((v) << 24)
+/**
+ * struct fw_cdev_iso_packet - Isochronous packet
+ * @control: Contains the header length (8 uppermost bits), the sy field
+ * (4 bits), the tag field (2 bits), a sync flag (1 bit),
+ * a skip flag (1 bit), an interrupt flag (1 bit), and the
+ * payload length (16 lowermost bits)
+ * @header: Header and payload
+ *
+ * &struct fw_cdev_iso_packet is used to describe isochronous packet queues.
+ *
+ * Use the FW_CDEV_ISO_ macros to fill in @control. The sy and tag fields are
+ * specified by IEEE 1394a and IEC 61883.
+ *
+ * FIXME - finish this documentation
+ */
struct fw_cdev_iso_packet {
__u32 control;
__u32 header[0];
};
+/**
+ * struct fw_cdev_queue_iso - Queue isochronous packets for I/O
+ * @packets: Userspace pointer to packet data
+ * @data: Pointer into mmap()'ed payload buffer
+ * @size: Size of packet data in bytes
+ * @handle: Isochronous context handle
+ *
+ * Queue a number of isochronous packets for reception or transmission.
+ * This ioctl takes a pointer to an array of &fw_cdev_iso_packet structs,
+ * which describe how to transmit from or receive into a contiguous region
+ * of a mmap()'ed payload buffer. As part of the packet descriptors,
+ * a series of headers can be supplied, which will be prepended to the
+ * payload during DMA.
+ *
+ * The kernel may or may not queue all packets, but will write back updated
+ * values of the @packets, @data and @size fields, so the ioctl can be
+ * resubmitted easily.
+ */
struct fw_cdev_queue_iso {
__u64 packets;
__u64 data;
__u32 handle;
};
+#define FW_CDEV_ISO_CONTEXT_MATCH_TAG0 1
+#define FW_CDEV_ISO_CONTEXT_MATCH_TAG1 2
+#define FW_CDEV_ISO_CONTEXT_MATCH_TAG2 4
+#define FW_CDEV_ISO_CONTEXT_MATCH_TAG3 8
+#define FW_CDEV_ISO_CONTEXT_MATCH_ALL_TAGS 15
+
+/**
+ * struct fw_cdev_start_iso - Start an isochronous transmission or reception
+ * @cycle: Cycle in which to start I/O. If @cycle is greater than or
+ * equal to 0, the I/O will start on that cycle.
+ * @sync: Determines the value to wait for for receive packets that have
+ * the %FW_CDEV_ISO_SYNC bit set
+ * @tags: Tag filter bit mask. Only valid for isochronous reception.
+ * Determines the tag values for which packets will be accepted.
+ * Use FW_CDEV_ISO_CONTEXT_MATCH_ macros to set @tags.
+ * @handle: Isochronous context handle within which to transmit or receive
+ */
struct fw_cdev_start_iso {
__s32 cycle;
__u32 sync;
__u32 handle;
};
+/**
+ * struct fw_cdev_stop_iso - Stop an isochronous transmission or reception
+ * @handle: Handle of isochronous context to stop
+ */
struct fw_cdev_stop_iso {
__u32 handle;
};
git.openpandora.org / pandora-kernel.git / commitdiff