arch/arm/mach-msm/smd_private.h

   1 /* arch/arm/mach-msm/smd_private.h
   2  *
   3  * Copyright (C) 2007 Google, Inc.
   4  * Copyright (c) 2007 QUALCOMM Incorporated
   5  *
   6  * This software is licensed under the terms of the GNU General Public
   7  * License version 2, as published by the Free Software Foundation, and
   8  * may be copied, distributed, and modified under those terms.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  */
  16 #ifndef _ARCH_ARM_MACH_MSM_MSM_SMD_PRIVATE_H_
  17 #define _ARCH_ARM_MACH_MSM_MSM_SMD_PRIVATE_H_
  18
  19 #include <linux/platform_device.h>
  20 #include <linux/spinlock.h>
  21 #include <linux/list.h>
  22 #include <linux/io.h>
  23
  24 #include <mach/msm_iomap.h>
  25
  26 struct smem_heap_info {
  27         unsigned initialized;
  28         unsigned free_offset;
  29         unsigned heap_remaining;
  30         unsigned reserved;
  31 };
  32
  33 struct smem_heap_entry {
  34         unsigned allocated;
  35         unsigned offset;
  36         unsigned size;
  37         unsigned reserved;
  38 };
  39
  40 struct smem_proc_comm {
  41         unsigned command;
  42         unsigned status;
  43         unsigned data1;
  44         unsigned data2;
  45 };
  46
  47 #define PC_APPS  0
  48 #define PC_MODEM 1
  49
  50 #define VERSION_SMD       0
  51 #define VERSION_QDSP6     4
  52 #define VERSION_APPS_SBL  6
  53 #define VERSION_MODEM_SBL 7
  54 #define VERSION_APPS      8
  55 #define VERSION_MODEM     9
  56
  57 struct smem_shared {
  58         struct smem_proc_comm proc_comm[4];
  59         unsigned version[32];
  60         struct smem_heap_info heap_info;
  61         struct smem_heap_entry heap_toc[512];
  62 };
  63
  64 #define SMSM_V1_SIZE            (sizeof(unsigned) * 8)
  65 #define SMSM_V2_SIZE            (sizeof(unsigned) * 4)
  66
  67 #ifdef CONFIG_MSM_SMD_PKG3
  68 struct smsm_interrupt_info {
  69         uint32_t interrupt_mask;
  70         uint32_t pending_interrupts;
  71         uint32_t wakeup_reason;
  72 };
  73 #else
  74 #define DEM_MAX_PORT_NAME_LEN (20)
  75 struct msm_dem_slave_data {
  76         uint32_t sleep_time;
  77         uint32_t interrupt_mask;
  78         uint32_t resources_used;
  79         uint32_t reserved1;
  80
  81         uint32_t wakeup_reason;
  82         uint32_t pending_interrupts;
  83         uint32_t rpc_prog;
  84         uint32_t rpc_proc;
  85         char     smd_port_name[DEM_MAX_PORT_NAME_LEN];
  86         uint32_t reserved2;
  87 };
  88 #endif
  89
  90 #define SZ_DIAG_ERR_MSG 0xC8
  91 #define ID_DIAG_ERR_MSG SMEM_DIAG_ERR_MESSAGE
  92 #define ID_SMD_CHANNELS SMEM_SMD_BASE_ID
  93 #define ID_SHARED_STATE SMEM_SMSM_SHARED_STATE
  94 #define ID_CH_ALLOC_TBL SMEM_CHANNEL_ALLOC_TBL
  95
  96 #define SMSM_INIT               0x00000001
  97 #define SMSM_SMDINIT            0x00000008
  98 #define SMSM_RPCINIT            0x00000020
  99 #define SMSM_RESET              0x00000040
 100 #define SMSM_RSA                0x00000080
 101 #define SMSM_RUN                0x00000100
 102 #define SMSM_PWRC               0x00000200
 103 #define SMSM_TIMEWAIT           0x00000400
 104 #define SMSM_TIMEINIT           0x00000800
 105 #define SMSM_PWRC_EARLY_EXIT    0x00001000
 106 #define SMSM_WFPI               0x00002000
 107 #define SMSM_SLEEP              0x00004000
 108 #define SMSM_SLEEPEXIT          0x00008000
 109 #define SMSM_APPS_REBOOT        0x00020000
 110 #define SMSM_SYSTEM_POWER_DOWN  0x00040000
 111 #define SMSM_SYSTEM_REBOOT      0x00080000
 112 #define SMSM_SYSTEM_DOWNLOAD    0x00100000
 113 #define SMSM_PWRC_SUSPEND       0x00200000
 114 #define SMSM_APPS_SHUTDOWN      0x00400000
 115 #define SMSM_SMD_LOOPBACK       0x00800000
 116 #define SMSM_RUN_QUIET          0x01000000
 117 #define SMSM_MODEM_WAIT         0x02000000
 118 #define SMSM_MODEM_BREAK        0x04000000
 119 #define SMSM_MODEM_CONTINUE     0x08000000
 120 #define SMSM_UNKNOWN            0x80000000
 121
 122 #define SMSM_WKUP_REASON_RPC    0x00000001
 123 #define SMSM_WKUP_REASON_INT    0x00000002
 124 #define SMSM_WKUP_REASON_GPIO   0x00000004
 125 #define SMSM_WKUP_REASON_TIMER  0x00000008
 126 #define SMSM_WKUP_REASON_ALARM  0x00000010
 127 #define SMSM_WKUP_REASON_RESET  0x00000020
 128
 129 #ifdef CONFIG_ARCH_MSM7X00A
 130 enum smsm_state_item {
 131         SMSM_STATE_APPS = 1,
 132         SMSM_STATE_MODEM = 3,
 133         SMSM_STATE_COUNT,
 134 };
 135 #else
 136 enum smsm_state_item {
 137         SMSM_STATE_APPS,
 138         SMSM_STATE_MODEM,
 139         SMSM_STATE_HEXAGON,
 140         SMSM_STATE_APPS_DEM,
 141         SMSM_STATE_MODEM_DEM,
 142         SMSM_STATE_QDSP6_DEM,
 143         SMSM_STATE_POWER_MASTER_DEM,
 144         SMSM_STATE_TIME_MASTER_DEM,
 145         SMSM_STATE_COUNT,
 146 };
 147 #endif
 148
 149 void *smem_alloc(unsigned id, unsigned size);
 150 int smsm_change_state(enum smsm_state_item item, uint32_t clear_mask, uint32_t set_mask);
 151 uint32_t smsm_get_state(enum smsm_state_item item);
 152 int smsm_set_sleep_duration(uint32_t delay);
 153 void smsm_print_sleep_info(void);
 154
 155 #define SMEM_NUM_SMD_CHANNELS        64
 156
 157 typedef enum {
 158         /* fixed items */
 159         SMEM_PROC_COMM = 0,
 160         SMEM_HEAP_INFO,
 161         SMEM_ALLOCATION_TABLE,
 162         SMEM_VERSION_INFO,
 163         SMEM_HW_RESET_DETECT,
 164         SMEM_AARM_WARM_BOOT,
 165         SMEM_DIAG_ERR_MESSAGE,
 166         SMEM_SPINLOCK_ARRAY,
 167         SMEM_MEMORY_BARRIER_LOCATION,
 168
 169         /* dynamic items */
 170         SMEM_AARM_PARTITION_TABLE,
 171         SMEM_AARM_BAD_BLOCK_TABLE,
 172         SMEM_RESERVE_BAD_BLOCKS,
 173         SMEM_WM_UUID,
 174         SMEM_CHANNEL_ALLOC_TBL,
 175         SMEM_SMD_BASE_ID,
 176         SMEM_SMEM_LOG_IDX = SMEM_SMD_BASE_ID + SMEM_NUM_SMD_CHANNELS,
 177         SMEM_SMEM_LOG_EVENTS,
 178         SMEM_SMEM_STATIC_LOG_IDX,
 179         SMEM_SMEM_STATIC_LOG_EVENTS,
 180         SMEM_SMEM_SLOW_CLOCK_SYNC,
 181         SMEM_SMEM_SLOW_CLOCK_VALUE,
 182         SMEM_BIO_LED_BUF,
 183         SMEM_SMSM_SHARED_STATE,
 184         SMEM_SMSM_INT_INFO,
 185         SMEM_SMSM_SLEEP_DELAY,
 186         SMEM_SMSM_LIMIT_SLEEP,
 187         SMEM_SLEEP_POWER_COLLAPSE_DISABLED,
 188         SMEM_KEYPAD_KEYS_PRESSED,
 189         SMEM_KEYPAD_STATE_UPDATED,
 190         SMEM_KEYPAD_STATE_IDX,
 191         SMEM_GPIO_INT,
 192         SMEM_MDDI_LCD_IDX,
 193         SMEM_MDDI_HOST_DRIVER_STATE,
 194         SMEM_MDDI_LCD_DISP_STATE,
 195         SMEM_LCD_CUR_PANEL,
 196         SMEM_MARM_BOOT_SEGMENT_INFO,
 197         SMEM_AARM_BOOT_SEGMENT_INFO,
 198         SMEM_SLEEP_STATIC,
 199         SMEM_SCORPION_FREQUENCY,
 200         SMEM_SMD_PROFILES,
 201         SMEM_TSSC_BUSY,
 202         SMEM_HS_SUSPEND_FILTER_INFO,
 203         SMEM_BATT_INFO,
 204         SMEM_APPS_BOOT_MODE,
 205         SMEM_VERSION_FIRST,
 206         SMEM_VERSION_LAST = SMEM_VERSION_FIRST + 24,
 207         SMEM_OSS_RRCASN1_BUF1,
 208         SMEM_OSS_RRCASN1_BUF2,
 209         SMEM_ID_VENDOR0,
 210         SMEM_ID_VENDOR1,
 211         SMEM_ID_VENDOR2,
 212         SMEM_HW_SW_BUILD_ID,
 213         SMEM_SMD_BLOCK_PORT_BASE_ID,
 214         SMEM_SMD_BLOCK_PORT_PROC0_HEAP = SMEM_SMD_BLOCK_PORT_BASE_ID + SMEM_NUM_SMD_CHANNELS,
 215         SMEM_SMD_BLOCK_PORT_PROC1_HEAP = SMEM_SMD_BLOCK_PORT_PROC0_HEAP + SMEM_NUM_SMD_CHANNELS,
 216         SMEM_I2C_MUTEX = SMEM_SMD_BLOCK_PORT_PROC1_HEAP + SMEM_NUM_SMD_CHANNELS,
 217         SMEM_SCLK_CONVERSION,
 218         SMEM_SMD_SMSM_INTR_MUX,
 219         SMEM_SMSM_CPU_INTR_MASK,
 220         SMEM_APPS_DEM_SLAVE_DATA,
 221         SMEM_QDSP6_DEM_SLAVE_DATA,
 222         SMEM_CLKREGIM_BSP,
 223         SMEM_CLKREGIM_SOURCES,
 224         SMEM_SMD_FIFO_BASE_ID,
 225         SMEM_USABLE_RAM_PARTITION_TABLE = SMEM_SMD_FIFO_BASE_ID + SMEM_NUM_SMD_CHANNELS,
 226         SMEM_POWER_ON_STATUS_INFO,
 227         SMEM_DAL_AREA,
 228         SMEM_SMEM_LOG_POWER_IDX,
 229         SMEM_SMEM_LOG_POWER_WRAP,
 230         SMEM_SMEM_LOG_POWER_EVENTS,
 231         SMEM_ERR_CRASH_LOG,
 232         SMEM_ERR_F3_TRACE_LOG,
 233         SMEM_NUM_ITEMS,
 234 } smem_mem_type;
 235
 236
 237 #define SMD_SS_CLOSED           0x00000000
 238 #define SMD_SS_OPENING          0x00000001
 239 #define SMD_SS_OPENED           0x00000002
 240 #define SMD_SS_FLUSHING         0x00000003
 241 #define SMD_SS_CLOSING          0x00000004
 242 #define SMD_SS_RESET            0x00000005
 243 #define SMD_SS_RESET_OPENING    0x00000006
 244
 245 #define SMD_BUF_SIZE            8192
 246 #define SMD_CHANNELS            64
 247
 248 #define SMD_HEADER_SIZE         20
 249
 250 struct smd_alloc_elm {
 251         char name[20];
 252         uint32_t cid;
 253         uint32_t ctype;
 254         uint32_t ref_count;
 255 };
 256
 257 struct smd_half_channel {
 258         unsigned state;
 259         unsigned char fDSR;
 260         unsigned char fCTS;
 261         unsigned char fCD;
 262         unsigned char fRI;
 263         unsigned char fHEAD;
 264         unsigned char fTAIL;
 265         unsigned char fSTATE;
 266         unsigned char fUNUSED;
 267         unsigned tail;
 268         unsigned head;
 269 } __attribute__(( aligned(4), packed ));
 270
 271 /* Only used on SMD package v3 on msm7201a */
 272 struct smd_shared_v1 {
 273         struct smd_half_channel ch0;
 274         unsigned char data0[SMD_BUF_SIZE];
 275         struct smd_half_channel ch1;
 276         unsigned char data1[SMD_BUF_SIZE];
 277 };
 278
 279 /* Used on SMD package v4 */
 280 struct smd_shared_v2 {
 281         struct smd_half_channel ch0;
 282         struct smd_half_channel ch1;
 283 };
 284
 285 struct smd_channel {
 286         volatile struct smd_half_channel *send;
 287         volatile struct smd_half_channel *recv;
 288         unsigned char *send_data;
 289         unsigned char *recv_data;
 290
 291         unsigned fifo_mask;
 292         unsigned fifo_size;
 293         unsigned current_packet;
 294         unsigned n;
 295
 296         struct list_head ch_list;
 297
 298         void *priv;
 299         void (*notify)(void *priv, unsigned flags);
 300
 301         int (*read)(struct smd_channel *ch, void *data, int len);
 302         int (*write)(struct smd_channel *ch, const void *data, int len);
 303         int (*read_avail)(struct smd_channel *ch);
 304         int (*write_avail)(struct smd_channel *ch);
 305
 306         void (*update_state)(struct smd_channel *ch);
 307         unsigned last_state;
 308         void (*notify_other_cpu)(void);
 309         unsigned type;
 310
 311         char name[32];
 312         struct platform_device pdev;
 313 };
 314
 315 #define SMD_TYPE_MASK           0x0FF
 316 #define SMD_TYPE_APPS_MODEM     0x000
 317 #define SMD_TYPE_APPS_DSP       0x001
 318 #define SMD_TYPE_MODEM_DSP      0x002
 319
 320 #define SMD_KIND_MASK           0xF00
 321 #define SMD_KIND_UNKNOWN        0x000
 322 #define SMD_KIND_STREAM         0x100
 323 #define SMD_KIND_PACKET         0x200
 324
 325 extern struct list_head smd_ch_closed_list;
 326 extern struct list_head smd_ch_list_modem;
 327 extern struct list_head smd_ch_list_dsp;
 328
 329 extern spinlock_t smd_lock;
 330 extern spinlock_t smem_lock;
 331
 332 void *smem_find(unsigned id, unsigned size);
 333 void *smem_item(unsigned id, unsigned *size);
 334 uint32_t raw_smsm_get_state(enum smsm_state_item item);
 335
 336 extern void msm_init_last_radio_log(struct module *);
 337
 338 #ifdef CONFIG_MSM_SMD_PKG3
 339 /*
 340  * This allocator assumes an SMD Package v3 which only exists on
 341  * MSM7x00 SoC's.
 342  */
 343 static inline int _smd_alloc_channel(struct smd_channel *ch)
 344 {
 345         struct smd_shared_v1 *shared1;
 346
 347         shared1 = smem_alloc(ID_SMD_CHANNELS + ch->n, sizeof(*shared1));
 348         if (!shared1) {
 349                 pr_err("smd_alloc_channel() cid %d does not exist\n", ch->n);
 350                 return -1;
 351         }
 352         ch->send = &shared1->ch0;
 353         ch->recv = &shared1->ch1;
 354         ch->send_data = shared1->data0;
 355         ch->recv_data = shared1->data1;
 356         ch->fifo_size = SMD_BUF_SIZE;
 357         return 0;
 358 }
 359 #else
 360 /*
 361  * This allocator assumes an SMD Package v4, the most common
 362  * and the default.
 363  */
 364 static inline int _smd_alloc_channel(struct smd_channel *ch)
 365 {
 366         struct smd_shared_v2 *shared2;
 367         void *buffer;
 368         unsigned buffer_sz;
 369
 370         shared2 = smem_alloc(SMEM_SMD_BASE_ID + ch->n, sizeof(*shared2));
 371         buffer = smem_item(SMEM_SMD_FIFO_BASE_ID + ch->n, &buffer_sz);
 372
 373         if (!buffer)
 374                 return -1;
 375
 376         /* buffer must be a power-of-two size */
 377         if (buffer_sz & (buffer_sz - 1))
 378                 return -1;
 379
 380         buffer_sz /= 2;
 381         ch->send = &shared2->ch0;
 382         ch->recv = &shared2->ch1;
 383         ch->send_data = buffer;
 384         ch->recv_data = buffer + buffer_sz;
 385         ch->fifo_size = buffer_sz;
 386         return 0;
 387 }
 388 #endif /* CONFIG_MSM_SMD_PKG3 */
 389
 390 #if defined(CONFIG_ARCH_MSM7X30)
 391 static inline void msm_a2m_int(uint32_t irq)
 392 {
 393         writel(1 << irq, MSM_GCC_BASE + 0x8);
 394 }
 395 #else
 396 static inline void msm_a2m_int(uint32_t irq)
 397 {
 398         writel(1, MSM_CSR_BASE + 0x400 + (irq * 4));
 399 }
 400 #endif /* CONFIG_ARCH_MSM7X30 */
 401
 402
 403 #endif