Duy Truong | 790f06d | 2013-02-13 16:38:12 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2008-2010, The Linux Foundation. All rights reserved. |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | /* |
| 15 | #define DEBUG_TRACE_VDEC |
| 16 | #define DEBUG |
| 17 | */ |
| 18 | |
| 19 | #include <linux/slab.h> |
| 20 | #include <linux/cdev.h> |
| 21 | #include <linux/delay.h> |
| 22 | #include <linux/file.h> |
| 23 | #include <linux/fs.h> |
| 24 | #include <linux/list.h> |
| 25 | #include <linux/miscdevice.h> |
| 26 | #include <linux/module.h> |
| 27 | #include <linux/mutex.h> |
| 28 | #include <linux/platform_device.h> |
| 29 | #include <linux/sched.h> |
| 30 | #include <linux/spinlock.h> |
| 31 | #include <linux/uaccess.h> |
| 32 | #include <linux/wakelock.h> |
Stephen Boyd | 2fcabf9 | 2012-05-30 10:41:11 -0700 | [diff] [blame] | 33 | #include <linux/pm_qos.h> |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 34 | |
| 35 | #include <linux/android_pmem.h> |
| 36 | #include <linux/msm_q6vdec.h> |
| 37 | |
Stephen Boyd | 2fcabf9 | 2012-05-30 10:41:11 -0700 | [diff] [blame] | 38 | #include <mach/cpuidle.h> |
| 39 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 40 | #include "dal.h" |
| 41 | |
| 42 | #define DALDEVICEID_VDEC_DEVICE 0x02000026 |
| 43 | #define DALDEVICEID_VDEC_PORTNAME "DAL_AQ_VID" |
| 44 | |
| 45 | #define VDEC_INTERFACE_VERSION 0x00020000 |
| 46 | |
| 47 | #define MAJOR_MASK 0xFFFF0000 |
| 48 | #define MINOR_MASK 0x0000FFFF |
| 49 | |
| 50 | #define VDEC_GET_MAJOR_VERSION(version) (((version)&MAJOR_MASK)>>16) |
| 51 | |
| 52 | #define VDEC_GET_MINOR_VERSION(version) ((version)&MINOR_MASK) |
| 53 | |
| 54 | #ifdef DEBUG_TRACE_VDEC |
| 55 | #define TRACE(fmt,x...) \ |
| 56 | do { pr_debug("%s:%d " fmt, __func__, __LINE__, ##x); } while (0) |
| 57 | #else |
| 58 | #define TRACE(fmt,x...) do { } while (0) |
| 59 | #endif |
| 60 | |
| 61 | #define YAMATO_COLOR_FORMAT 0x02 |
| 62 | #define MAX_Q6_LOAD ((720*1280)/256) /* 720p */ |
| 63 | #define MAX_Q6_LOAD_YAMATO ((736*1280)/256) |
| 64 | #define MAX_Q6_LOAD_VP6 ((800*480)/256) |
| 65 | |
| 66 | #define VDEC_MAX_PORTS 4 |
| 67 | |
| 68 | /* |
| 69 | *why magic number 300? |
| 70 | |
| 71 | *the Maximum size of the DAL payload is 512 bytes according to DAL protocol |
| 72 | *Initialize call to QDSP6 from scorpion need to send sequence header as part of |
| 73 | *the DAL payload. DAL payload to initialize contains the following |
| 74 | |
| 75 | *1) configuration data- 52 bytes 2) length field of config data - 4 bytes |
| 76 | *3) sequence header data ( that is from the bit stream) |
| 77 | *4) length field for sequence header - 4 bytes |
| 78 | *5) length field for output structure - 4 bytes |
| 79 | |
| 80 | *that left with 512 - 68 = 448 bytes. It is unusual that we get a sequence |
| 81 | *header with such a big length unless the bit stream has multiple sequence |
| 82 | *headers.We estimated 300 is good enough which gives enough room for rest |
| 83 | *of the payload and even reserves some space for future payload. |
| 84 | */ |
| 85 | |
| 86 | #define VDEC_MAX_SEQ_HEADER_SIZE 300 |
| 87 | |
| 88 | char *Q6Portnames[] = { |
| 89 | "DAL_AQ_VID_0", |
| 90 | "DAL_AQ_VID_1", |
| 91 | "DAL_AQ_VID_2", |
| 92 | "DAL_AQ_VID_3" |
| 93 | }; |
| 94 | |
| 95 | |
| 96 | |
| 97 | #define DALDEVICEID_VDEC_DEVICE_0 0x020000D2 |
| 98 | #define DALDEVICEID_VDEC_DEVICE_1 0x020000D3 |
| 99 | #define DALDEVICEID_VDEC_DEVICE_2 0x020000D4 |
| 100 | #define DALDEVICEID_VDEC_DEVICE_3 0x020000D5 |
| 101 | #define DALDEVICEID_VDEC_DEVICE_4 0x020000D6 |
| 102 | #define DALDEVICEID_VDEC_DEVICE_5 0x020000D7 |
| 103 | #define DALDEVICEID_VDEC_DEVICE_6 0x020000D8 |
| 104 | #define DALDEVICEID_VDEC_DEVICE_7 0x020000D9 |
| 105 | #define DALDEVICEID_VDEC_DEVICE_8 0x020000DA |
| 106 | #define DALDEVICEID_VDEC_DEVICE_9 0x020000DB |
| 107 | #define DALDEVICEID_VDEC_DEVICE_10 0x020000DC |
| 108 | #define DALDEVICEID_VDEC_DEVICE_11 0x020000DD |
| 109 | #define DALDEVICEID_VDEC_DEVICE_12 0x020000DE |
| 110 | #define DALDEVICEID_VDEC_DEVICE_13 0x020000DF |
| 111 | #define DALDEVICEID_VDEC_DEVICE_14 0x020000E0 |
| 112 | #define DALDEVICEID_VDEC_DEVICE_15 0x020000E1 |
| 113 | #define DALDEVICEID_VDEC_DEVICE_16 0x020000E2 |
| 114 | #define DALDEVICEID_VDEC_DEVICE_17 0x020000E3 |
| 115 | #define DALDEVICEID_VDEC_DEVICE_18 0x020000E4 |
| 116 | #define DALDEVICEID_VDEC_DEVICE_19 0x020000E5 |
| 117 | #define DALDEVICEID_VDEC_DEVICE_20 0x020000E6 |
| 118 | #define DALDEVICEID_VDEC_DEVICE_21 0x020000E7 |
| 119 | #define DALDEVICEID_VDEC_DEVICE_22 0x020000E8 |
| 120 | #define DALDEVICEID_VDEC_DEVICE_23 0x020000E9 |
| 121 | #define DALDEVICEID_VDEC_DEVICE_24 0x020000EA |
| 122 | #define DALDEVICEID_VDEC_DEVICE_25 0x020000EB |
| 123 | #define DALDEVICEID_VDEC_DEVICE_26 0x020000EC |
| 124 | #define DALDEVICEID_VDEC_DEVICE_27 0x020000ED |
| 125 | #define DALDEVICEID_VDEC_DEVICE_28 0x020000EE |
| 126 | #define DALDEVICEID_VDEC_DEVICE_29 0x020000EF |
| 127 | #define DALDEVICEID_VDEC_DEVICE_30 0x020000F0 |
| 128 | #define DALDEVICEID_VDEC_DEVICE_31 0x020000F1 |
| 129 | |
| 130 | #define DALVDEC_MAX_DEVICE_IDS 32 |
| 131 | |
| 132 | |
| 133 | static int numOfPorts; |
| 134 | |
| 135 | |
| 136 | static char loadOnPorts[VDEC_MAX_PORTS]; |
| 137 | |
| 138 | static char deviceIdRegistry[DALVDEC_MAX_DEVICE_IDS]; |
| 139 | |
| 140 | |
| 141 | #define VDEC_DEVID_FREE 0 |
| 142 | #define VDEC_DEVID_OCCUPIED 1 |
| 143 | |
| 144 | #define MAX_SUPPORTED_INSTANCES 6 |
| 145 | |
| 146 | #define MAKEFOURCC(ch0, ch1, ch2, ch3) ((unsigned int)(unsigned char)(ch0) | \ |
| 147 | ((unsigned int)(unsigned char)(ch1) << 8) | \ |
| 148 | ((unsigned int)(unsigned char)(ch2) << 16) | \ |
| 149 | ((unsigned int)(unsigned char)(ch3) << 24)) |
| 150 | |
| 151 | #define FOURCC_MPEG4 MAKEFOURCC('m', 'p', '4', 'v') |
| 152 | #define FOURCC_H263 MAKEFOURCC('h', '2', '6', '3') |
| 153 | #define FOURCC_H264 MAKEFOURCC('h', '2', '6', '4') |
| 154 | #define FOURCC_VC1 MAKEFOURCC('w', 'm', 'v', '3') |
| 155 | #define FOURCC_DIVX MAKEFOURCC('D', 'I', 'V', 'X') |
| 156 | #define FOURCC_SPARK MAKEFOURCC('F', 'L', 'V', '1') |
| 157 | #define FOURCC_VP6 MAKEFOURCC('V', 'P', '6', '0') |
| 158 | |
| 159 | /* static struct vdec_data *multiInstances[MAX_SUPPORTED_INSTANCES];*/ |
| 160 | |
| 161 | static int totalPlaybackQ6load; |
| 162 | static int totalTnailQ6load; |
| 163 | |
| 164 | #define FLAG_THUMBNAIL_MODE 0x8 |
| 165 | #define MAX_TNAILS 3 |
| 166 | |
| 167 | #define TRUE 1 |
| 168 | #define FALSE 0 |
| 169 | |
| 170 | enum { |
| 171 | VDEC_DALRPC_INITIALIZE = DAL_OP_FIRST_DEVICE_API, |
| 172 | VDEC_DALRPC_SETBUFFERS, |
| 173 | VDEC_DALRPC_FREEBUFFERS, |
| 174 | VDEC_DALRPC_QUEUE, |
| 175 | VDEC_DALRPC_SIGEOFSTREAM, |
| 176 | VDEC_DALRPC_FLUSH, |
| 177 | VDEC_DALRPC_REUSEFRAMEBUFFER, |
| 178 | VDEC_DALRPC_GETDECATTRIBUTES, |
| 179 | VDEC_DALRPC_SUSPEND, |
| 180 | VDEC_DALRPC_RESUME, |
| 181 | VDEC_DALRPC_INITIALIZE_00, |
| 182 | VDEC_DALRPC_GETINTERNALBUFFERREQ, |
| 183 | VDEC_DALRPC_SETBUFFERS_00, |
| 184 | VDEC_DALRPC_FREEBUFFERS_00, |
| 185 | VDEC_DALRPC_GETPROPERTY, |
| 186 | VDEC_DALRPC_SETPROPERTY, |
| 187 | VDEC_DALRPC_GETDECATTRIBUTES_00, |
| 188 | VDEC_DALRPC_PERFORMANCE_CHANGE_REQUEST |
| 189 | }; |
| 190 | |
| 191 | enum { |
| 192 | VDEC_ASYNCMSG_DECODE_DONE = 0xdec0de00, |
| 193 | VDEC_ASYNCMSG_REUSE_FRAME, |
| 194 | }; |
| 195 | |
| 196 | struct vdec_init_cfg { |
| 197 | u32 decode_done_evt; |
| 198 | u32 reuse_frame_evt; |
| 199 | struct vdec_config cfg; |
| 200 | }; |
| 201 | |
| 202 | struct vdec_buffer_status { |
| 203 | u32 data; |
| 204 | u32 status; |
| 205 | }; |
| 206 | |
| 207 | #define VDEC_MSG_MAX 128 |
| 208 | |
| 209 | struct vdec_msg_list { |
| 210 | struct list_head list; |
| 211 | struct vdec_msg vdec_msg; |
| 212 | }; |
| 213 | |
| 214 | struct vdec_mem_info { |
| 215 | u32 buf_type; |
| 216 | u32 id; |
| 217 | unsigned long phys_addr; |
| 218 | unsigned long len; |
| 219 | struct file *file; |
| 220 | }; |
| 221 | |
| 222 | struct vdec_mem_list { |
| 223 | struct list_head list; |
| 224 | struct vdec_mem_info mem; |
| 225 | }; |
| 226 | |
| 227 | struct videoStreamDetails{ |
| 228 | int height; |
| 229 | int width; |
| 230 | unsigned int fourcc; |
| 231 | int Q6usage; |
| 232 | bool isThisTnail; |
| 233 | bool isTnailGranted; |
| 234 | }; |
| 235 | |
| 236 | struct vdec_data { |
| 237 | struct dal_client *vdec_handle; |
| 238 | unsigned int Q6deviceId; |
| 239 | struct videoStreamDetails streamDetails; |
| 240 | struct list_head vdec_msg_list_head; |
| 241 | struct list_head vdec_msg_list_free; |
| 242 | wait_queue_head_t vdec_msg_evt; |
| 243 | spinlock_t vdec_list_lock; |
| 244 | struct list_head vdec_mem_list_head; |
| 245 | spinlock_t vdec_mem_list_lock; |
| 246 | int mem_initialized; |
| 247 | int running; |
| 248 | int close_decode; |
| 249 | }; |
| 250 | |
| 251 | static struct class *driver_class; |
| 252 | static dev_t vdec_device_no; |
| 253 | static struct cdev vdec_cdev; |
| 254 | static int ref_cnt; |
| 255 | static DEFINE_MUTEX(vdec_ref_lock); |
| 256 | |
| 257 | static DEFINE_MUTEX(idlecount_lock); |
| 258 | |
| 259 | static DEFINE_MUTEX(vdec_rm_lock); |
| 260 | |
| 261 | static int idlecount; |
| 262 | static struct wake_lock wakelock; |
Stephen Boyd | 2fcabf9 | 2012-05-30 10:41:11 -0700 | [diff] [blame] | 263 | static struct pm_qos_request pm_qos_req; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 264 | |
| 265 | static void prevent_sleep(void) |
| 266 | { |
| 267 | mutex_lock(&idlecount_lock); |
| 268 | if (++idlecount == 1) { |
Stephen Boyd | 2fcabf9 | 2012-05-30 10:41:11 -0700 | [diff] [blame] | 269 | pm_qos_update_request(&pm_qos_req, |
| 270 | msm_cpuidle_get_deep_idle_latency()); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 271 | wake_lock(&wakelock); |
| 272 | } |
| 273 | mutex_unlock(&idlecount_lock); |
| 274 | } |
| 275 | |
| 276 | static void allow_sleep(void) |
| 277 | { |
| 278 | mutex_lock(&idlecount_lock); |
| 279 | if (--idlecount == 0) { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 280 | wake_unlock(&wakelock); |
Stephen Boyd | 2fcabf9 | 2012-05-30 10:41:11 -0700 | [diff] [blame] | 281 | pm_qos_update_request(&pm_qos_req, PM_QOS_DEFAULT_VALUE); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 282 | } |
| 283 | mutex_unlock(&idlecount_lock); |
| 284 | } |
| 285 | |
| 286 | static inline int vdec_check_version(u32 client, u32 server) |
| 287 | { |
| 288 | int ret = -EINVAL; |
| 289 | if ((VDEC_GET_MAJOR_VERSION(client) == VDEC_GET_MAJOR_VERSION(server)) |
| 290 | && (VDEC_GET_MINOR_VERSION(client) <= |
| 291 | VDEC_GET_MINOR_VERSION(server))) |
| 292 | ret = 0; |
| 293 | return ret; |
| 294 | } |
| 295 | |
| 296 | static int vdec_get_msg(struct vdec_data *vd, void *msg) |
| 297 | { |
| 298 | struct vdec_msg_list *l; |
| 299 | unsigned long flags; |
| 300 | int ret = 0; |
| 301 | |
| 302 | if (!vd->running) |
| 303 | return -EPERM; |
| 304 | |
| 305 | spin_lock_irqsave(&vd->vdec_list_lock, flags); |
| 306 | list_for_each_entry_reverse(l, &vd->vdec_msg_list_head, list) { |
| 307 | if (copy_to_user(msg, &l->vdec_msg, sizeof(struct vdec_msg))) |
| 308 | pr_err("vdec_get_msg failed to copy_to_user!\n"); |
| 309 | if (l->vdec_msg.id == VDEC_MSG_REUSEINPUTBUFFER) |
| 310 | TRACE("reuse_input_buffer %d\n", l->vdec_msg.buf_id); |
| 311 | else if (l->vdec_msg.id == VDEC_MSG_FRAMEDONE) |
| 312 | TRACE("frame_done (stat=%d)\n", |
| 313 | l->vdec_msg.vfr_info.status); |
| 314 | else |
| 315 | TRACE("unknown msg (msgid=%d)\n", l->vdec_msg.id); |
| 316 | list_del(&l->list); |
| 317 | list_add(&l->list, &vd->vdec_msg_list_free); |
| 318 | ret = 1; |
| 319 | break; |
| 320 | } |
| 321 | spin_unlock_irqrestore(&vd->vdec_list_lock, flags); |
| 322 | |
| 323 | if (vd->close_decode) |
| 324 | ret = 1; |
| 325 | |
| 326 | return ret; |
| 327 | } |
| 328 | |
| 329 | static void vdec_put_msg(struct vdec_data *vd, struct vdec_msg *msg) |
| 330 | { |
| 331 | struct vdec_msg_list *l; |
| 332 | unsigned long flags; |
| 333 | int found = 0; |
| 334 | |
| 335 | spin_lock_irqsave(&vd->vdec_list_lock, flags); |
| 336 | list_for_each_entry(l, &vd->vdec_msg_list_free, list) { |
| 337 | memcpy(&l->vdec_msg, msg, sizeof(struct vdec_msg)); |
| 338 | list_del(&l->list); |
| 339 | list_add(&l->list, &vd->vdec_msg_list_head); |
| 340 | found = 1; |
| 341 | break; |
| 342 | } |
| 343 | spin_unlock_irqrestore(&vd->vdec_list_lock, flags); |
| 344 | |
| 345 | if (found) |
| 346 | wake_up(&vd->vdec_msg_evt); |
| 347 | else |
| 348 | pr_err("vdec_put_msg can't find free list!\n"); |
| 349 | } |
| 350 | |
| 351 | static struct vdec_mem_list *vdec_get_mem_from_list(struct vdec_data *vd, |
| 352 | u32 pmem_id, u32 buf_type) |
| 353 | { |
| 354 | struct vdec_mem_list *l; |
| 355 | unsigned long flags; |
| 356 | int found = 0; |
| 357 | |
| 358 | spin_lock_irqsave(&vd->vdec_mem_list_lock, flags); |
| 359 | list_for_each_entry(l, &vd->vdec_mem_list_head, list) { |
| 360 | if (l->mem.buf_type == buf_type && l->mem.id == pmem_id) { |
| 361 | found = 1; |
| 362 | break; |
| 363 | } |
| 364 | } |
| 365 | spin_unlock_irqrestore(&vd->vdec_mem_list_lock, flags); |
| 366 | |
| 367 | if (found) |
| 368 | return l; |
| 369 | else |
| 370 | return NULL; |
| 371 | |
| 372 | } |
| 373 | static int vdec_setproperty(struct vdec_data *vd, void *argp) |
| 374 | { |
| 375 | struct vdec_property_info property; |
| 376 | int res; |
| 377 | |
| 378 | if (copy_from_user(&property, argp, sizeof(struct vdec_property_info))) |
| 379 | return -1; |
| 380 | |
| 381 | res = dal_call_f6(vd->vdec_handle, VDEC_DALRPC_SETPROPERTY, |
| 382 | property.id, &(property.property), sizeof(union vdec_property)); |
| 383 | if (res) |
| 384 | TRACE("Set Property failed"); |
| 385 | else |
| 386 | TRACE("Set Property succeeded"); |
| 387 | return res; |
| 388 | } |
| 389 | static int vdec_getproperty(struct vdec_data *vd, void *argp) |
| 390 | { |
| 391 | int res; |
| 392 | union vdec_property property = {0}; |
| 393 | |
| 394 | res = dal_call_f11(vd->vdec_handle, VDEC_DALRPC_GETPROPERTY, |
| 395 | ((struct vdec_property_info *)argp)->id, &property, |
| 396 | sizeof(union vdec_property)); |
| 397 | |
| 398 | if (res) |
| 399 | TRACE("get Property failed"); |
| 400 | else |
| 401 | TRACE("get Property succeeded"); |
| 402 | |
| 403 | res = copy_to_user( |
| 404 | (&((struct vdec_property_info *)argp)->property), |
| 405 | &property, sizeof(property)); |
| 406 | |
| 407 | return res; |
| 408 | } |
| 409 | static int vdec_performance_change_request(struct vdec_data *vd, void* argp) |
| 410 | { |
| 411 | u32 request_type; |
| 412 | int ret; |
| 413 | |
| 414 | ret = copy_from_user(&request_type, argp, sizeof(request_type)); |
| 415 | if (ret) { |
| 416 | pr_err("%s: copy_from_user failed\n", __func__); |
| 417 | return ret; |
| 418 | } |
| 419 | ret = dal_call_f0(vd->vdec_handle, |
| 420 | VDEC_DALRPC_PERFORMANCE_CHANGE_REQUEST, |
| 421 | request_type); |
| 422 | if (ret) { |
| 423 | pr_err("%s: remote function failed (%d)\n", __func__, ret); |
| 424 | return ret; |
| 425 | } |
| 426 | return ret; |
| 427 | } |
| 428 | |
| 429 | #ifdef TRACE_PORTS |
| 430 | static void printportsanddeviceids(void) |
| 431 | { |
| 432 | int i; |
| 433 | |
| 434 | pr_err("\n\n%s:loadOnPorts", __func__); |
| 435 | for (i = 0; i < numOfPorts; i++) |
| 436 | pr_err("\t%d", loadOnPorts[i]); |
| 437 | |
| 438 | pr_err("\n\n"); |
| 439 | |
| 440 | pr_err("\n\n%s:Devids", __func__); |
| 441 | for (i = 0; i < DALVDEC_MAX_DEVICE_IDS; i++) |
| 442 | pr_err("Devid[%d]:%d\n", i, deviceIdRegistry[i]); |
| 443 | |
| 444 | |
| 445 | pr_err("\n\n"); |
| 446 | } |
| 447 | #endif /*TRACE_PORTS*/ |
| 448 | |
| 449 | |
| 450 | /* |
| 451 | * |
| 452 | * This method is used to get the number of ports supported on the Q6 |
| 453 | * |
| 454 | */ |
| 455 | static int vdec_get_numberofq6ports(void) |
| 456 | { |
| 457 | struct dal_client *vdec_handle = NULL; |
| 458 | int retval = 0; |
| 459 | union vdec_property property = {0}; |
| 460 | |
| 461 | vdec_handle = dal_attach(DALDEVICEID_VDEC_DEVICE, |
| 462 | DALDEVICEID_VDEC_PORTNAME, 1, NULL, NULL); |
| 463 | if (!vdec_handle) { |
| 464 | pr_err("%s: failed to attach\n", __func__); |
| 465 | return 1;/* default setting */ |
| 466 | } |
| 467 | |
| 468 | retval = dal_call_f6(vdec_handle, VDEC_DALRPC_GETPROPERTY, |
| 469 | VDEC_NUM_DAL_PORTS, (void *)&property, sizeof(union vdec_property)); |
| 470 | if (retval) { |
| 471 | pr_err("%s: Q6get prperty failed\n", __func__); |
| 472 | return 1;/* default setting */ |
| 473 | } |
| 474 | |
| 475 | dal_detach(vdec_handle); |
| 476 | return property.num_dal_ports ; |
| 477 | } |
| 478 | |
| 479 | |
| 480 | /** |
| 481 | * This method is used to get the find the least loaded port and a corresponding |
| 482 | * free device id in that port. |
| 483 | * |
| 484 | * Prerequisite: vdec_open should have been called. |
| 485 | * |
| 486 | * @param[in] deviceid |
| 487 | * device id will be populated here. |
| 488 | * |
| 489 | * @param[in] portname |
| 490 | * portname will be populated here. |
| 491 | */ |
| 492 | static void vdec_get_next_portanddevid(int *deviceid, char **portname) |
| 493 | { |
| 494 | |
| 495 | int i = 0; |
| 496 | int leastLoad = 0; |
| 497 | int leastLoadedIndex = 0; |
| 498 | |
| 499 | if (0 == numOfPorts) { |
| 500 | numOfPorts = vdec_get_numberofq6ports(); |
| 501 | pr_err("%s: Q6get numOfPorts %d\n", __func__, numOfPorts); |
| 502 | numOfPorts = 4; |
| 503 | /*fix: me currently hard coded to 4 as |
| 504 | *the Q6 getproperty is failing |
| 505 | */ |
| 506 | } |
| 507 | |
| 508 | if ((NULL == deviceid) || (NULL == portname)) |
| 509 | return; |
| 510 | else |
| 511 | *deviceid = 0; /* init value */ |
| 512 | |
| 513 | if (numOfPorts > 1) { |
| 514 | /* multi ports mode*/ |
| 515 | |
| 516 | /* find the least loaded port*/ |
| 517 | for (i = 1, leastLoad = loadOnPorts[0], leastLoadedIndex = 0; |
| 518 | i < numOfPorts; i++) { |
| 519 | if (leastLoad > loadOnPorts[i]) { |
| 520 | leastLoadedIndex = i; |
| 521 | leastLoad = loadOnPorts[i]; |
| 522 | } |
| 523 | } |
| 524 | |
| 525 | /* register the load */ |
| 526 | loadOnPorts[leastLoadedIndex]++; |
| 527 | *portname = Q6Portnames[leastLoadedIndex]; |
| 528 | |
| 529 | /* find a free device id corresponding to the port*/ |
| 530 | for (i = leastLoadedIndex; i < DALVDEC_MAX_DEVICE_IDS; |
| 531 | i += numOfPorts) { |
| 532 | if (VDEC_DEVID_FREE == deviceIdRegistry[i]) { |
| 533 | deviceIdRegistry[i] = VDEC_DEVID_OCCUPIED; |
| 534 | *deviceid = DALDEVICEID_VDEC_DEVICE_0 + i; |
| 535 | break; |
| 536 | } |
| 537 | } |
| 538 | |
| 539 | #ifdef TRACE_PORTS |
| 540 | printportsanddeviceids(); |
| 541 | #endif /*TRACE_PORTS*/ |
| 542 | } else if (1 == numOfPorts) { |
| 543 | /* single port mode */ |
| 544 | *deviceid = DALDEVICEID_VDEC_DEVICE; |
| 545 | *portname = DALDEVICEID_VDEC_PORTNAME; |
| 546 | } else if (numOfPorts <= 0) { |
| 547 | pr_err("%s: FATAL error numOfPorts cannot be \ |
| 548 | less than or equal to zero\n", __func__); |
| 549 | } |
| 550 | |
| 551 | |
| 552 | } |
| 553 | |
| 554 | |
| 555 | /** |
| 556 | * This method frees up the used dev id and decrements the port load. |
| 557 | * |
| 558 | */ |
| 559 | |
| 560 | static void vdec_freeup_portanddevid(int deviceid) |
| 561 | { |
| 562 | |
| 563 | if (numOfPorts > 1) { |
| 564 | /* multi ports mode*/ |
| 565 | if (VDEC_DEVID_FREE == |
| 566 | deviceIdRegistry[deviceid - DALDEVICEID_VDEC_DEVICE_0]) |
| 567 | pr_err("device id cannot be already free\n"); |
| 568 | deviceIdRegistry[deviceid - DALDEVICEID_VDEC_DEVICE_0] = |
| 569 | VDEC_DEVID_FREE; |
| 570 | |
| 571 | loadOnPorts[(deviceid - DALDEVICEID_VDEC_DEVICE_0) |
| 572 | % numOfPorts]--; |
| 573 | |
| 574 | if (loadOnPorts[(deviceid - DALDEVICEID_VDEC_DEVICE_0) |
| 575 | % numOfPorts] < 0) |
| 576 | pr_err("Warning:load cannot be negative\n"); |
| 577 | |
| 578 | pr_err("dettaching on deviceid %x portname %s\n", deviceid, |
| 579 | Q6Portnames[(deviceid - DALDEVICEID_VDEC_DEVICE_0) |
| 580 | % numOfPorts]); |
| 581 | |
| 582 | #ifdef TRACE_PORTS |
| 583 | printportsanddeviceids(); |
| 584 | #endif /*TRACE_PORTS*/ |
| 585 | } else { |
| 586 | /*single port mode, nothing to be done here*/ |
| 587 | } |
| 588 | |
| 589 | } |
| 590 | |
| 591 | |
| 592 | /** |
| 593 | * This method validates whether a new instance can be houred or not. |
| 594 | * |
| 595 | */ |
| 596 | static int vdec_rm_checkWithRm(struct vdec_data *vdecInstance, |
| 597 | unsigned int color_format) |
| 598 | { |
| 599 | |
| 600 | unsigned int maxQ6load = 0;/* in the units of macro blocks per second */ |
| 601 | unsigned int currentq6load = 0; |
| 602 | struct videoStreamDetails *streamDetails = &vdecInstance->streamDetails; |
| 603 | |
| 604 | |
| 605 | |
| 606 | if (streamDetails->isThisTnail) { |
| 607 | if (totalTnailQ6load < MAX_TNAILS) { |
| 608 | |
| 609 | totalTnailQ6load++; |
| 610 | streamDetails->isTnailGranted = TRUE; |
| 611 | pr_info("%s: thumbnail granted %d\n", __func__, |
| 612 | totalTnailQ6load); |
| 613 | return 0; |
| 614 | |
| 615 | } else { |
| 616 | |
| 617 | pr_err("%s: thumbnails load max this instance cannot \ |
| 618 | be supported\n", __func__); |
| 619 | streamDetails->isTnailGranted = FALSE; |
| 620 | return -ENOSPC; |
| 621 | |
| 622 | } |
| 623 | } |
| 624 | |
| 625 | /* calculate the Q6 percentage instance would need */ |
| 626 | if ((streamDetails->fourcc == FOURCC_MPEG4) || |
| 627 | (streamDetails->fourcc == FOURCC_H264) || |
| 628 | (streamDetails->fourcc == FOURCC_DIVX) || |
| 629 | (streamDetails->fourcc == FOURCC_VC1) || |
| 630 | (streamDetails->fourcc == FOURCC_SPARK) || |
| 631 | (streamDetails->fourcc == FOURCC_H263) |
| 632 | ){ |
| 633 | |
| 634 | /* is yamato color format, |
| 635 | Rounds the H & W --> mutiple of 32 */ |
| 636 | if (color_format == YAMATO_COLOR_FORMAT) |
| 637 | maxQ6load = MAX_Q6_LOAD_YAMATO; |
| 638 | else |
| 639 | maxQ6load = MAX_Q6_LOAD; /* 720p */ |
| 640 | |
| 641 | } else if (streamDetails->fourcc == FOURCC_VP6) { |
| 642 | |
| 643 | maxQ6load = MAX_Q6_LOAD_VP6; /* FWVGA */ |
| 644 | |
| 645 | } else { |
| 646 | |
| 647 | pr_err("%s: unknown fourcc %d maxQ6load %u\n", __func__, |
| 648 | streamDetails->fourcc, maxQ6load); |
| 649 | return -EINVAL; |
| 650 | |
| 651 | } |
| 652 | |
| 653 | currentq6load = ((streamDetails->height)*(streamDetails->width) / 256); |
| 654 | currentq6load = ((currentq6load * 100)/maxQ6load); |
| 655 | if ((currentq6load+totalPlaybackQ6load) > 100) { |
| 656 | /* reject this instance */ |
| 657 | pr_err("%s: too much Q6load [cur+tot] = [%d + %d] = %d", |
| 658 | __func__, currentq6load, totalPlaybackQ6load, |
| 659 | (currentq6load+totalPlaybackQ6load)); |
| 660 | pr_err("rejecting the instance,[WxH] = [%d x %d],color_fmt=0x%x\n", |
| 661 | streamDetails->width, streamDetails->height, color_format); |
| 662 | pr_err("VDEC_fmt=%s\n", (char *)(&streamDetails->fourcc)); |
| 663 | streamDetails->Q6usage = 0; |
| 664 | return -ENOSPC; |
| 665 | } |
| 666 | |
| 667 | totalPlaybackQ6load += currentq6load; |
| 668 | streamDetails->Q6usage = currentq6load; |
| 669 | |
| 670 | pr_info("%s: adding a load [%d%%] bringing total Q6load to [%d%%]\n", |
| 671 | __func__, currentq6load, totalPlaybackQ6load); |
| 672 | |
| 673 | return 0; |
| 674 | } |
| 675 | |
| 676 | |
| 677 | static int vdec_initialize(struct vdec_data *vd, void *argp) |
| 678 | { |
| 679 | struct vdec_config_sps vdec_cfg_sps; |
| 680 | struct vdec_init_cfg vi_cfg; |
| 681 | struct vdec_buf_req vdec_buf_req; |
| 682 | struct u8 *header; |
| 683 | int ret = 0; |
| 684 | |
| 685 | ret = copy_from_user(&vdec_cfg_sps, |
| 686 | &((struct vdec_init *)argp)->sps_cfg, |
| 687 | sizeof(vdec_cfg_sps)); |
| 688 | |
| 689 | if (ret) { |
| 690 | pr_err("%s: copy_from_user failed\n", __func__); |
| 691 | return ret; |
| 692 | } |
| 693 | |
| 694 | vi_cfg.decode_done_evt = VDEC_ASYNCMSG_DECODE_DONE; |
| 695 | vi_cfg.reuse_frame_evt = VDEC_ASYNCMSG_REUSE_FRAME; |
| 696 | memcpy(&vi_cfg.cfg, &vdec_cfg_sps.cfg, sizeof(struct vdec_config)); |
| 697 | |
| 698 | /* |
| 699 | * restricting the max value of the seq header |
| 700 | */ |
| 701 | if (vdec_cfg_sps.seq.len > VDEC_MAX_SEQ_HEADER_SIZE) |
| 702 | vdec_cfg_sps.seq.len = VDEC_MAX_SEQ_HEADER_SIZE; |
| 703 | |
| 704 | header = kmalloc(vdec_cfg_sps.seq.len, GFP_KERNEL); |
| 705 | if (!header) { |
| 706 | pr_err("%s: kmalloc failed\n", __func__); |
| 707 | return -ENOMEM; |
| 708 | } |
| 709 | |
| 710 | ret = copy_from_user(header, |
| 711 | ((struct vdec_init *)argp)->sps_cfg.seq.header, |
| 712 | vdec_cfg_sps.seq.len); |
| 713 | |
| 714 | if (ret) { |
| 715 | pr_err("%s: copy_from_user failed\n", __func__); |
| 716 | kfree(header); |
| 717 | return ret; |
| 718 | } |
| 719 | |
| 720 | TRACE("vi_cfg: handle=%p fourcc=0x%x w=%d h=%d order=%d notify_en=%d " |
| 721 | "vc1_rb=%d h264_sd=%d h264_nls=%d pp_flag=%d fruc_en=%d\n", |
| 722 | vd->vdec_handle, vi_cfg.cfg.fourcc, vi_cfg.cfg.width, |
| 723 | vi_cfg.cfg.height, vi_cfg.cfg.order, vi_cfg.cfg.notify_enable, |
| 724 | vi_cfg.cfg.vc1_rowbase, vi_cfg.cfg.h264_startcode_detect, |
| 725 | vi_cfg.cfg.h264_nal_len_size, vi_cfg.cfg.postproc_flag, |
| 726 | vi_cfg.cfg.fruc_enable); |
| 727 | |
| 728 | vd->streamDetails.height = vi_cfg.cfg.height; |
| 729 | vd->streamDetails.width = vi_cfg.cfg.width; |
| 730 | vd->streamDetails.fourcc = vi_cfg.cfg.fourcc; |
| 731 | if (FLAG_THUMBNAIL_MODE == vi_cfg.cfg.postproc_flag) |
| 732 | vd->streamDetails.isThisTnail = TRUE; |
| 733 | else |
| 734 | vd->streamDetails.isThisTnail = FALSE; |
| 735 | |
| 736 | mutex_lock(&vdec_rm_lock); |
| 737 | ret = vdec_rm_checkWithRm(vd, vi_cfg.cfg.color_format); |
| 738 | mutex_unlock(&vdec_rm_lock); |
| 739 | if (ret) |
| 740 | return ret; |
| 741 | |
| 742 | ret = dal_call_f13(vd->vdec_handle, VDEC_DALRPC_INITIALIZE, |
| 743 | &vi_cfg, sizeof(vi_cfg), |
| 744 | header, vdec_cfg_sps.seq.len, |
| 745 | &vdec_buf_req, sizeof(vdec_buf_req)); |
| 746 | |
| 747 | kfree(header); |
| 748 | |
| 749 | if (ret) |
| 750 | pr_err("%s: remote function failed (%d)\n", __func__, ret); |
| 751 | else |
| 752 | ret = copy_to_user(((struct vdec_init *)argp)->buf_req, |
| 753 | &vdec_buf_req, sizeof(vdec_buf_req)); |
| 754 | |
| 755 | vd->close_decode = 0; |
| 756 | return ret; |
| 757 | } |
| 758 | |
| 759 | static void vdec_rm_freeupResources(struct vdec_data *vdecInstance) |
| 760 | { |
| 761 | struct videoStreamDetails *streamDetails = &vdecInstance->streamDetails; |
| 762 | |
| 763 | |
| 764 | |
| 765 | if ((streamDetails->isThisTnail) && |
| 766 | (streamDetails->isTnailGranted)) { |
| 767 | |
| 768 | totalTnailQ6load--; |
| 769 | pr_info("%s: Thumbnail released %d\n", __func__, |
| 770 | totalTnailQ6load); |
| 771 | |
| 772 | } else if (streamDetails->Q6usage > 0) { |
| 773 | |
| 774 | totalPlaybackQ6load -= streamDetails->Q6usage; |
| 775 | if (totalPlaybackQ6load < 0) |
| 776 | pr_err("Warning:Q6load cannot be negative\n"); |
| 777 | |
| 778 | pr_info("%s:Releasing [%d%%] of Q6load from a total of [%d%%]\n" |
| 779 | , __func__, streamDetails->Q6usage, |
| 780 | (streamDetails->Q6usage+totalPlaybackQ6load)); |
| 781 | } |
| 782 | |
| 783 | } |
| 784 | |
| 785 | static int vdec_setbuffers(struct vdec_data *vd, void *argp) |
| 786 | { |
| 787 | struct vdec_buffer vmem; |
| 788 | struct vdec_mem_list *l; |
| 789 | unsigned long vstart; |
| 790 | unsigned long flags; |
| 791 | struct { |
| 792 | uint32_t size; |
| 793 | struct vdec_buf_info buf; |
| 794 | } rpc; |
| 795 | uint32_t res; |
| 796 | |
| 797 | int ret = 0; |
| 798 | |
| 799 | vd->mem_initialized = 0; |
| 800 | |
| 801 | ret = copy_from_user(&vmem, argp, sizeof(vmem)); |
| 802 | if (ret) { |
| 803 | pr_err("%s: copy_from_user failed\n", __func__); |
| 804 | return ret; |
| 805 | } |
| 806 | |
| 807 | l = kzalloc(sizeof(struct vdec_mem_list), GFP_KERNEL); |
| 808 | if (!l) { |
| 809 | pr_err("%s: kzalloc failed!\n", __func__); |
| 810 | return -ENOMEM; |
| 811 | } |
| 812 | |
| 813 | l->mem.id = vmem.pmem_id; |
| 814 | l->mem.buf_type = vmem.buf.buf_type; |
| 815 | |
| 816 | ret = get_pmem_file(l->mem.id, &l->mem.phys_addr, &vstart, |
| 817 | &l->mem.len, &l->mem.file); |
| 818 | if (ret) { |
| 819 | pr_err("%s: get_pmem_fd failed\n", __func__); |
| 820 | goto err_get_pmem_file; |
| 821 | } |
| 822 | |
| 823 | TRACE("pmem_id=%d (phys=0x%08lx len=0x%lx) buftype=%d num_buf=%d " |
| 824 | "islast=%d src_id=%d offset=0x%08x size=0x%x\n", |
| 825 | vmem.pmem_id, l->mem.phys_addr, l->mem.len, |
| 826 | vmem.buf.buf_type, vmem.buf.num_buf, vmem.buf.islast, |
| 827 | vmem.buf.region.src_id, vmem.buf.region.offset, |
| 828 | vmem.buf.region.size); |
| 829 | |
| 830 | /* input buffers */ |
| 831 | if ((vmem.buf.region.offset + vmem.buf.region.size) > l->mem.len) { |
| 832 | pr_err("%s: invalid input buffer offset!\n", __func__); |
| 833 | ret = -EINVAL; |
| 834 | goto err_bad_offset; |
| 835 | |
| 836 | } |
| 837 | vmem.buf.region.offset += l->mem.phys_addr; |
| 838 | |
| 839 | rpc.size = sizeof(vmem.buf); |
| 840 | memcpy(&rpc.buf, &vmem.buf, sizeof(struct vdec_buf_info)); |
| 841 | |
| 842 | |
| 843 | ret = dal_call(vd->vdec_handle, VDEC_DALRPC_SETBUFFERS, 5, |
| 844 | &rpc, sizeof(rpc), &res, sizeof(res)); |
| 845 | |
| 846 | if (ret < 4) { |
| 847 | pr_err("%s: remote function failed (%d)\n", __func__, ret); |
| 848 | ret = -EIO; |
| 849 | goto err_dal_call; |
| 850 | } |
| 851 | |
| 852 | spin_lock_irqsave(&vd->vdec_mem_list_lock, flags); |
| 853 | list_add(&l->list, &vd->vdec_mem_list_head); |
| 854 | spin_unlock_irqrestore(&vd->vdec_mem_list_lock, flags); |
| 855 | |
| 856 | vd->mem_initialized = 1; |
| 857 | return ret; |
| 858 | |
| 859 | err_dal_call: |
| 860 | err_bad_offset: |
| 861 | put_pmem_file(l->mem.file); |
| 862 | err_get_pmem_file: |
| 863 | kfree(l); |
| 864 | return ret; |
| 865 | } |
| 866 | |
| 867 | static int vdec_queue(struct vdec_data *vd, void *argp) |
| 868 | { |
| 869 | struct { |
| 870 | uint32_t size; |
| 871 | struct vdec_input_buf_info buf_info; |
| 872 | uint32_t osize; |
| 873 | } rpc; |
| 874 | struct vdec_mem_list *l; |
| 875 | struct { |
| 876 | uint32_t result; |
| 877 | uint32_t size; |
| 878 | struct vdec_queue_status status; |
| 879 | } rpc_res; |
| 880 | |
| 881 | u32 pmem_id; |
| 882 | int ret = 0; |
| 883 | |
| 884 | if (!vd->mem_initialized) { |
| 885 | pr_err("%s: memory is not being initialized!\n", __func__); |
| 886 | return -EPERM; |
| 887 | } |
| 888 | |
| 889 | ret = copy_from_user(&rpc.buf_info, |
| 890 | &((struct vdec_input_buf *)argp)->buffer, |
| 891 | sizeof(rpc.buf_info)); |
| 892 | if (ret) { |
| 893 | pr_err("%s: copy_from_user failed\n", __func__); |
| 894 | return ret; |
| 895 | } |
| 896 | |
| 897 | ret = copy_from_user(&pmem_id, |
| 898 | &((struct vdec_input_buf *)argp)->pmem_id, |
| 899 | sizeof(u32)); |
| 900 | if (ret) { |
| 901 | pr_err("%s: copy_from_user failed\n", __func__); |
| 902 | return ret; |
| 903 | } |
| 904 | |
| 905 | l = vdec_get_mem_from_list(vd, pmem_id, VDEC_BUFFER_TYPE_INPUT); |
| 906 | |
| 907 | if (NULL == l) { |
| 908 | pr_err("%s: not able to find the buffer from list\n", __func__); |
| 909 | return -EPERM; |
| 910 | } |
| 911 | |
| 912 | if ((rpc.buf_info.size + rpc.buf_info.offset) >= l->mem.len) { |
| 913 | pr_err("%s: invalid queue buffer offset!\n", __func__); |
| 914 | return -EINVAL; |
| 915 | } |
| 916 | |
| 917 | rpc.buf_info.offset += l->mem.phys_addr; |
| 918 | rpc.size = sizeof(struct vdec_input_buf_info); |
| 919 | rpc.osize = sizeof(struct vdec_queue_status); |
| 920 | |
| 921 | /* complete the writes to the buffer */ |
| 922 | wmb(); |
| 923 | ret = dal_call(vd->vdec_handle, VDEC_DALRPC_QUEUE, 8, |
| 924 | &rpc, sizeof(rpc), &rpc_res, sizeof(rpc_res)); |
| 925 | if (ret < 4) { |
| 926 | pr_err("%s: remote function failed (%d)\n", __func__, ret); |
| 927 | ret = -EIO; |
| 928 | } |
| 929 | return ret; |
| 930 | } |
| 931 | |
| 932 | static int vdec_reuse_framebuffer(struct vdec_data *vd, void *argp) |
| 933 | { |
| 934 | u32 buf_id; |
| 935 | int ret = 0; |
| 936 | |
| 937 | ret = copy_from_user(&buf_id, argp, sizeof(buf_id)); |
| 938 | if (ret) { |
| 939 | pr_err("%s: copy_from_user failed\n", __func__); |
| 940 | return ret; |
| 941 | } |
| 942 | |
| 943 | ret = dal_call_f0(vd->vdec_handle, VDEC_DALRPC_REUSEFRAMEBUFFER, |
| 944 | buf_id); |
| 945 | if (ret) |
| 946 | pr_err("%s: remote function failed (%d)\n", __func__, ret); |
| 947 | |
| 948 | return ret; |
| 949 | } |
| 950 | |
| 951 | static int vdec_flush(struct vdec_data *vd, void *argp) |
| 952 | { |
| 953 | u32 flush_type; |
| 954 | int ret = 0; |
| 955 | |
| 956 | if (!vd->mem_initialized) { |
| 957 | pr_err("%s: memory is not being initialized!\n", __func__); |
| 958 | return -EPERM; |
| 959 | } |
| 960 | |
| 961 | ret = copy_from_user(&flush_type, argp, sizeof(flush_type)); |
| 962 | if (ret) { |
| 963 | pr_err("%s: copy_from_user failed\n", __func__); |
| 964 | return ret; |
| 965 | } |
| 966 | |
| 967 | TRACE("flush_type=%d\n", flush_type); |
| 968 | ret = dal_call_f0(vd->vdec_handle, VDEC_DALRPC_FLUSH, flush_type); |
| 969 | if (ret) { |
| 970 | pr_err("%s: remote function failed (%d)\n", __func__, ret); |
| 971 | return ret; |
| 972 | } |
| 973 | |
| 974 | return ret; |
| 975 | } |
| 976 | |
| 977 | static int vdec_close(struct vdec_data *vd, void *argp) |
| 978 | { |
| 979 | struct vdec_mem_list *l; |
| 980 | int ret = 0; |
| 981 | |
| 982 | pr_info("q6vdec_close()\n"); |
| 983 | vd->close_decode = 1; |
| 984 | wake_up(&vd->vdec_msg_evt); |
| 985 | |
| 986 | ret = dal_call_f0(vd->vdec_handle, DAL_OP_CLOSE, 0); |
| 987 | if (ret) |
| 988 | pr_err("%s: failed to close daldevice (%d)\n", __func__, ret); |
| 989 | |
| 990 | if (vd->mem_initialized) { |
| 991 | list_for_each_entry(l, &vd->vdec_mem_list_head, list) |
| 992 | put_pmem_file(l->mem.file); |
| 993 | } |
| 994 | |
| 995 | return ret; |
| 996 | } |
| 997 | static int vdec_getdecattributes(struct vdec_data *vd, void *argp) |
| 998 | { |
| 999 | struct { |
| 1000 | uint32_t status; |
| 1001 | uint32_t size; |
| 1002 | struct vdec_dec_attributes dec_attr; |
| 1003 | } rpc; |
| 1004 | uint32_t inp; |
| 1005 | int ret = 0; |
| 1006 | inp = sizeof(struct vdec_dec_attributes); |
| 1007 | |
| 1008 | ret = dal_call(vd->vdec_handle, VDEC_DALRPC_GETDECATTRIBUTES, 9, |
| 1009 | &inp, sizeof(inp), &rpc, sizeof(rpc)); |
| 1010 | if (ret < 4 || rpc.size != sizeof(struct vdec_dec_attributes)) { |
| 1011 | pr_err("%s: remote function failed (%d)\n", __func__, ret); |
| 1012 | ret = -EIO; |
| 1013 | } else |
| 1014 | ret = |
| 1015 | copy_to_user(((struct vdec_dec_attributes *)argp), |
| 1016 | &rpc.dec_attr, sizeof(rpc.dec_attr)); |
| 1017 | return ret; |
| 1018 | } |
| 1019 | |
| 1020 | static int vdec_freebuffers(struct vdec_data *vd, void *argp) |
| 1021 | { |
| 1022 | struct vdec_buffer vmem; |
| 1023 | struct vdec_mem_list *l; |
| 1024 | struct { |
| 1025 | uint32_t size; |
| 1026 | struct vdec_buf_info buf; |
| 1027 | } rpc; |
| 1028 | uint32_t res; |
| 1029 | |
| 1030 | int ret = 0; |
| 1031 | |
| 1032 | if (!vd->mem_initialized) { |
| 1033 | pr_err("%s: memory is not being initialized!\n", __func__); |
| 1034 | return -EPERM; |
| 1035 | } |
| 1036 | |
| 1037 | ret = copy_from_user(&vmem, argp, sizeof(vmem)); |
| 1038 | if (ret) { |
| 1039 | pr_err("%s: copy_from_user failed\n", __func__); |
| 1040 | return ret; |
| 1041 | } |
| 1042 | |
| 1043 | l = vdec_get_mem_from_list(vd, vmem.pmem_id, vmem.buf.buf_type); |
| 1044 | |
| 1045 | if (NULL == l) { |
| 1046 | pr_err("%s: not able to find the buffer from list\n", __func__); |
| 1047 | return -EPERM; |
| 1048 | } |
| 1049 | |
| 1050 | /* input buffers */ |
| 1051 | if ((vmem.buf.region.offset + vmem.buf.region.size) > l->mem.len) { |
| 1052 | pr_err("%s: invalid input buffer offset!\n", __func__); |
| 1053 | return -EINVAL; |
| 1054 | |
| 1055 | } |
| 1056 | vmem.buf.region.offset += l->mem.phys_addr; |
| 1057 | |
| 1058 | rpc.size = sizeof(vmem.buf); |
| 1059 | memcpy(&rpc.buf, &vmem.buf, sizeof(struct vdec_buf_info)); |
| 1060 | |
| 1061 | ret = dal_call(vd->vdec_handle, VDEC_DALRPC_FREEBUFFERS, 5, |
| 1062 | &rpc, sizeof(rpc), &res, sizeof(res)); |
| 1063 | if (ret < 4) { |
| 1064 | pr_err("%s: remote function failed (%d)\n", __func__, ret); |
| 1065 | } |
| 1066 | |
| 1067 | return ret; |
| 1068 | } |
| 1069 | |
| 1070 | static int vdec_getversion(struct vdec_data *vd, void *argp) |
| 1071 | { |
| 1072 | struct vdec_version ver_info; |
| 1073 | int ret = 0; |
| 1074 | |
| 1075 | ver_info.major = VDEC_GET_MAJOR_VERSION(VDEC_INTERFACE_VERSION); |
| 1076 | ver_info.minor = VDEC_GET_MINOR_VERSION(VDEC_INTERFACE_VERSION); |
| 1077 | |
| 1078 | ret = copy_to_user(((struct vdec_version *)argp), |
| 1079 | &ver_info, sizeof(ver_info)); |
| 1080 | |
| 1081 | return ret; |
| 1082 | |
| 1083 | } |
| 1084 | |
| 1085 | static long vdec_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
| 1086 | { |
| 1087 | struct vdec_data *vd = file->private_data; |
| 1088 | void __user *argp = (void __user *)arg; |
| 1089 | int ret = 0; |
| 1090 | |
| 1091 | if (!vd->running) |
| 1092 | return -EPERM; |
| 1093 | |
| 1094 | switch (cmd) { |
| 1095 | case VDEC_IOCTL_INITIALIZE: |
| 1096 | ret = vdec_initialize(vd, argp); |
| 1097 | break; |
| 1098 | |
| 1099 | case VDEC_IOCTL_SETBUFFERS: |
| 1100 | ret = vdec_setbuffers(vd, argp); |
| 1101 | break; |
| 1102 | |
| 1103 | case VDEC_IOCTL_QUEUE: |
| 1104 | TRACE("VDEC_IOCTL_QUEUE (pid=%d tid=%d)\n", |
| 1105 | current->group_leader->pid, current->pid); |
| 1106 | ret = vdec_queue(vd, argp); |
| 1107 | break; |
| 1108 | |
| 1109 | case VDEC_IOCTL_REUSEFRAMEBUFFER: |
| 1110 | TRACE("VDEC_IOCTL_REUSEFRAMEBUFFER (pid=%d tid=%d)\n", |
| 1111 | current->group_leader->pid, current->pid); |
| 1112 | ret = vdec_reuse_framebuffer(vd, argp); |
| 1113 | break; |
| 1114 | |
| 1115 | case VDEC_IOCTL_FLUSH: |
| 1116 | TRACE("IOCTL flush\n"); |
| 1117 | ret = vdec_flush(vd, argp); |
| 1118 | break; |
| 1119 | |
| 1120 | case VDEC_IOCTL_EOS: |
| 1121 | TRACE("VDEC_IOCTL_EOS (pid=%d tid=%d)\n", |
| 1122 | current->group_leader->pid, current->pid); |
| 1123 | ret = dal_call_f0(vd->vdec_handle, VDEC_DALRPC_SIGEOFSTREAM, 0); |
| 1124 | if (ret) |
| 1125 | pr_err("%s: remote function failed (%d)\n", |
| 1126 | __func__, ret); |
| 1127 | break; |
| 1128 | |
| 1129 | case VDEC_IOCTL_GETMSG: |
| 1130 | TRACE("VDEC_IOCTL_GETMSG (pid=%d tid=%d)\n", |
| 1131 | current->group_leader->pid, current->pid); |
| 1132 | wait_event_interruptible(vd->vdec_msg_evt, |
| 1133 | vdec_get_msg(vd, argp)); |
| 1134 | |
| 1135 | if (vd->close_decode) |
| 1136 | ret = -EINTR; |
| 1137 | else |
| 1138 | /* order the reads from the buffer */ |
| 1139 | rmb(); |
| 1140 | break; |
| 1141 | |
| 1142 | case VDEC_IOCTL_CLOSE: |
| 1143 | ret = vdec_close(vd, argp); |
| 1144 | break; |
| 1145 | |
| 1146 | case VDEC_IOCTL_GETDECATTRIBUTES: |
| 1147 | TRACE("VDEC_IOCTL_GETDECATTRIBUTES (pid=%d tid=%d)\n", |
| 1148 | current->group_leader->pid, current->pid); |
| 1149 | ret = vdec_getdecattributes(vd, argp); |
| 1150 | |
| 1151 | if (ret) |
| 1152 | pr_err("%s: remote function failed (%d)\n", |
| 1153 | __func__, ret); |
| 1154 | break; |
| 1155 | |
| 1156 | case VDEC_IOCTL_FREEBUFFERS: |
| 1157 | TRACE("VDEC_IOCTL_FREEBUFFERS (pid=%d tid=%d)\n", |
| 1158 | current->group_leader->pid, current->pid); |
| 1159 | ret = vdec_freebuffers(vd, argp); |
| 1160 | |
| 1161 | if (ret) |
| 1162 | pr_err("%s: remote function failed (%d)\n", |
| 1163 | __func__, ret); |
| 1164 | break; |
| 1165 | case VDEC_IOCTL_GETVERSION: |
| 1166 | TRACE("VDEC_IOCTL_GETVERSION (pid=%d tid=%d)\n", |
| 1167 | current->group_leader->pid, current->pid); |
| 1168 | ret = vdec_getversion(vd, argp); |
| 1169 | |
| 1170 | if (ret) |
| 1171 | pr_err("%s: remote function failed (%d)\n", |
| 1172 | __func__, ret); |
| 1173 | break; |
| 1174 | case VDEC_IOCTL_GETPROPERTY: |
| 1175 | TRACE("VDEC_IOCTL_GETPROPERTY (pid=%d tid=%d)\n", |
| 1176 | current->group_leader->pid, current->pid); |
| 1177 | ret = vdec_getproperty(vd, argp); |
| 1178 | break; |
| 1179 | case VDEC_IOCTL_SETPROPERTY: |
| 1180 | TRACE("VDEC_IOCTL_SETPROPERTY (pid=%d tid=%d)\n", |
| 1181 | current->group_leader->pid, current->pid); |
| 1182 | ret = vdec_setproperty(vd, argp); |
| 1183 | break; |
| 1184 | case VDEC_IOCTL_PERFORMANCE_CHANGE_REQ: |
| 1185 | ret = vdec_performance_change_request(vd, argp); |
| 1186 | break; |
| 1187 | default: |
| 1188 | pr_err("%s: invalid ioctl!\n", __func__); |
| 1189 | ret = -EINVAL; |
| 1190 | break; |
| 1191 | } |
| 1192 | |
| 1193 | TRACE("ioctl done (pid=%d tid=%d)\n", |
| 1194 | current->group_leader->pid, current->pid); |
| 1195 | |
| 1196 | return ret; |
| 1197 | } |
| 1198 | |
| 1199 | static void vdec_dcdone_handler(struct vdec_data *vd, void *frame, |
| 1200 | uint32_t frame_size) |
| 1201 | { |
| 1202 | struct vdec_msg msg; |
| 1203 | struct vdec_mem_list *l; |
| 1204 | unsigned long flags; |
| 1205 | int found = 0; |
| 1206 | |
| 1207 | if (frame_size < sizeof(struct vdec_frame_info)) { |
| 1208 | pr_warning("%s: msg size mismatch %d != %d\n", __func__, |
| 1209 | frame_size, sizeof(struct vdec_frame_info)); |
| 1210 | return; |
| 1211 | } |
| 1212 | |
| 1213 | memcpy(&msg.vfr_info, (struct vdec_frame_info *)frame, |
| 1214 | sizeof(struct vdec_frame_info)); |
| 1215 | |
| 1216 | if (msg.vfr_info.status == VDEC_FRAME_DECODE_OK) { |
| 1217 | spin_lock_irqsave(&vd->vdec_mem_list_lock, flags); |
| 1218 | list_for_each_entry(l, &vd->vdec_mem_list_head, list) { |
| 1219 | if ((l->mem.buf_type == VDEC_BUFFER_TYPE_OUTPUT) && |
| 1220 | (msg.vfr_info.offset >= l->mem.phys_addr) && |
| 1221 | (msg.vfr_info.offset < |
| 1222 | (l->mem.phys_addr + l->mem.len))) { |
| 1223 | found = 1; |
| 1224 | msg.vfr_info.offset -= l->mem.phys_addr; |
| 1225 | msg.vfr_info.data2 = l->mem.id; |
| 1226 | break; |
| 1227 | } |
| 1228 | } |
| 1229 | spin_unlock_irqrestore(&vd->vdec_mem_list_lock, flags); |
| 1230 | } |
| 1231 | |
| 1232 | if (found || (msg.vfr_info.status != VDEC_FRAME_DECODE_OK)) { |
| 1233 | msg.id = VDEC_MSG_FRAMEDONE; |
| 1234 | vdec_put_msg(vd, &msg); |
| 1235 | } else { |
| 1236 | pr_err("%s: invalid phys addr = 0x%x\n", |
| 1237 | __func__, msg.vfr_info.offset); |
| 1238 | } |
| 1239 | |
| 1240 | } |
| 1241 | |
| 1242 | static void vdec_reuseibuf_handler(struct vdec_data *vd, void *bufstat, |
| 1243 | uint32_t bufstat_size) |
| 1244 | { |
| 1245 | struct vdec_buffer_status *vdec_bufstat; |
| 1246 | struct vdec_msg msg; |
| 1247 | |
| 1248 | /* TODO: how do we signal the client? If they are waiting on a |
| 1249 | * message in an ioctl, they may block forever */ |
| 1250 | if (bufstat_size != sizeof(struct vdec_buffer_status)) { |
| 1251 | pr_warning("%s: msg size mismatch %d != %d\n", __func__, |
| 1252 | bufstat_size, sizeof(struct vdec_buffer_status)); |
| 1253 | return; |
| 1254 | } |
| 1255 | vdec_bufstat = (struct vdec_buffer_status *)bufstat; |
| 1256 | msg.id = VDEC_MSG_REUSEINPUTBUFFER; |
| 1257 | msg.buf_id = vdec_bufstat->data; |
| 1258 | vdec_put_msg(vd, &msg); |
| 1259 | } |
| 1260 | |
| 1261 | static void callback(void *data, int len, void *cookie) |
| 1262 | { |
| 1263 | struct vdec_data *vd = (struct vdec_data *)cookie; |
| 1264 | uint32_t *tmp = (uint32_t *) data; |
| 1265 | |
| 1266 | if (!vd->mem_initialized) { |
| 1267 | pr_err("%s:memory not initialize but callback called!\n", |
| 1268 | __func__); |
| 1269 | return; |
| 1270 | } |
| 1271 | |
| 1272 | TRACE("vdec_async: tmp=0x%08x 0x%08x 0x%08x\n", tmp[0], tmp[1], tmp[2]); |
| 1273 | switch (tmp[0]) { |
| 1274 | case VDEC_ASYNCMSG_DECODE_DONE: |
| 1275 | vdec_dcdone_handler(vd, &tmp[3], tmp[2]); |
| 1276 | break; |
| 1277 | case VDEC_ASYNCMSG_REUSE_FRAME: |
| 1278 | vdec_reuseibuf_handler(vd, &tmp[3], tmp[2]); |
| 1279 | break; |
| 1280 | default: |
| 1281 | pr_err("%s: Unknown async message from DSP id=0x%08x sz=%u\n", |
| 1282 | __func__, tmp[0], tmp[2]); |
| 1283 | } |
| 1284 | } |
| 1285 | |
| 1286 | static int vdec_open(struct inode *inode, struct file *file) |
| 1287 | { |
| 1288 | int ret; |
| 1289 | int i; |
| 1290 | struct vdec_msg_list *l; |
| 1291 | struct vdec_data *vd; |
| 1292 | struct dal_info version_info; |
| 1293 | char *portname = NULL; |
| 1294 | |
| 1295 | pr_info("q6vdec_open()\n"); |
| 1296 | mutex_lock(&vdec_ref_lock); |
| 1297 | if (ref_cnt >= MAX_SUPPORTED_INSTANCES) { |
| 1298 | pr_err("%s: Max allowed instances exceeded \n", __func__); |
| 1299 | mutex_unlock(&vdec_ref_lock); |
| 1300 | return -EBUSY; |
| 1301 | } |
| 1302 | ref_cnt++; |
| 1303 | mutex_unlock(&vdec_ref_lock); |
| 1304 | |
| 1305 | vd = kmalloc(sizeof(struct vdec_data), GFP_KERNEL); |
| 1306 | if (!vd) { |
| 1307 | pr_err("%s: kmalloc failed\n", __func__); |
| 1308 | ret = -ENOMEM; |
| 1309 | goto vdec_open_err_handle_vd; |
| 1310 | } |
| 1311 | file->private_data = vd; |
| 1312 | |
| 1313 | vd->mem_initialized = 0; |
| 1314 | INIT_LIST_HEAD(&vd->vdec_msg_list_head); |
| 1315 | INIT_LIST_HEAD(&vd->vdec_msg_list_free); |
| 1316 | INIT_LIST_HEAD(&vd->vdec_mem_list_head); |
| 1317 | init_waitqueue_head(&vd->vdec_msg_evt); |
| 1318 | |
| 1319 | spin_lock_init(&vd->vdec_list_lock); |
| 1320 | spin_lock_init(&vd->vdec_mem_list_lock); |
| 1321 | for (i = 0; i < VDEC_MSG_MAX; i++) { |
| 1322 | l = kzalloc(sizeof(struct vdec_msg_list), GFP_KERNEL); |
| 1323 | if (!l) { |
| 1324 | pr_err("%s: kzalloc failed!\n", __func__); |
| 1325 | ret = -ENOMEM; |
| 1326 | goto vdec_open_err_handle_list; |
| 1327 | } |
| 1328 | list_add(&l->list, &vd->vdec_msg_list_free); |
| 1329 | } |
| 1330 | |
| 1331 | memset(&vd->streamDetails, 0, sizeof(struct videoStreamDetails)); |
| 1332 | |
| 1333 | mutex_lock(&vdec_ref_lock); |
| 1334 | vdec_get_next_portanddevid(&vd->Q6deviceId, &portname); |
| 1335 | mutex_unlock(&vdec_ref_lock); |
| 1336 | |
| 1337 | if ((0 == vd->Q6deviceId) || (NULL == portname)) { |
| 1338 | pr_err("%s: FATAL error portname %s or deviceId %d not picked properly\n", |
| 1339 | __func__, portname, vd->Q6deviceId); |
| 1340 | ret = -EIO; |
| 1341 | goto vdec_open_err_handle_list; |
| 1342 | } else { |
| 1343 | pr_err("attaching on deviceid %x portname %s\n", |
| 1344 | vd->Q6deviceId, portname); |
| 1345 | vd->vdec_handle = dal_attach(vd->Q6deviceId, |
| 1346 | portname, 1, callback, vd); |
| 1347 | } |
| 1348 | |
| 1349 | if (!vd->vdec_handle) { |
| 1350 | pr_err("%s: failed to attach\n", __func__); |
| 1351 | ret = -EIO; |
| 1352 | goto vdec_open_err_handle_list; |
| 1353 | } |
| 1354 | ret = dal_call_f9(vd->vdec_handle, DAL_OP_INFO, |
| 1355 | &version_info, sizeof(struct dal_info)); |
| 1356 | |
| 1357 | if (ret) { |
| 1358 | pr_err("%s: failed to get version \n", __func__); |
| 1359 | goto vdec_open_err_handle_version; |
| 1360 | } |
| 1361 | |
| 1362 | TRACE("q6vdec_open() interface version 0x%x\n", version_info.version); |
| 1363 | if (vdec_check_version(VDEC_INTERFACE_VERSION, |
| 1364 | version_info.version)) { |
| 1365 | pr_err("%s: driver version mismatch !\n", __func__); |
| 1366 | goto vdec_open_err_handle_version; |
| 1367 | } |
| 1368 | |
| 1369 | vd->running = 1; |
| 1370 | prevent_sleep(); |
| 1371 | |
| 1372 | return 0; |
| 1373 | vdec_open_err_handle_version: |
| 1374 | dal_detach(vd->vdec_handle); |
| 1375 | vdec_open_err_handle_list: |
| 1376 | { |
| 1377 | struct vdec_msg_list *l, *n; |
| 1378 | list_for_each_entry_safe(l, n, &vd->vdec_msg_list_free, list) { |
| 1379 | list_del(&l->list); |
| 1380 | kfree(l); |
| 1381 | } |
| 1382 | } |
| 1383 | vdec_open_err_handle_vd: |
| 1384 | mutex_lock(&vdec_ref_lock); |
| 1385 | vdec_freeup_portanddevid(vd->Q6deviceId); |
| 1386 | ref_cnt--; |
| 1387 | mutex_unlock(&vdec_ref_lock); |
| 1388 | kfree(vd); |
| 1389 | return ret; |
| 1390 | } |
| 1391 | |
| 1392 | static int vdec_release(struct inode *inode, struct file *file) |
| 1393 | { |
| 1394 | int ret; |
| 1395 | struct vdec_msg_list *l, *n; |
| 1396 | struct vdec_mem_list *m, *k; |
| 1397 | struct vdec_data *vd = file->private_data; |
| 1398 | |
| 1399 | vd->running = 0; |
| 1400 | wake_up_all(&vd->vdec_msg_evt); |
| 1401 | |
| 1402 | if (!vd->close_decode) |
| 1403 | vdec_close(vd, NULL); |
| 1404 | |
| 1405 | ret = dal_detach(vd->vdec_handle); |
| 1406 | if (ret) |
| 1407 | printk(KERN_INFO "%s: failed to detach (%d)\n", __func__, ret); |
| 1408 | |
| 1409 | list_for_each_entry_safe(l, n, &vd->vdec_msg_list_free, list) { |
| 1410 | list_del(&l->list); |
| 1411 | kfree(l); |
| 1412 | } |
| 1413 | |
| 1414 | list_for_each_entry_safe(l, n, &vd->vdec_msg_list_head, list) { |
| 1415 | list_del(&l->list); |
| 1416 | kfree(l); |
| 1417 | } |
| 1418 | |
| 1419 | list_for_each_entry_safe(m, k, &vd->vdec_mem_list_head, list) { |
| 1420 | list_del(&m->list); |
| 1421 | kfree(m); |
| 1422 | } |
| 1423 | mutex_lock(&vdec_ref_lock); |
| 1424 | BUG_ON(ref_cnt <= 0); |
| 1425 | ref_cnt--; |
| 1426 | vdec_freeup_portanddevid(vd->Q6deviceId); |
| 1427 | mutex_unlock(&vdec_ref_lock); |
| 1428 | |
| 1429 | mutex_lock(&vdec_rm_lock); |
| 1430 | vdec_rm_freeupResources(vd); |
| 1431 | mutex_unlock(&vdec_rm_lock); |
| 1432 | |
| 1433 | |
| 1434 | kfree(vd); |
| 1435 | allow_sleep(); |
| 1436 | return 0; |
| 1437 | } |
| 1438 | |
| 1439 | static const struct file_operations vdec_fops = { |
| 1440 | .owner = THIS_MODULE, |
| 1441 | .open = vdec_open, |
| 1442 | .release = vdec_release, |
| 1443 | .unlocked_ioctl = vdec_ioctl, |
| 1444 | }; |
| 1445 | |
| 1446 | static int __init vdec_init(void) |
| 1447 | { |
| 1448 | struct device *class_dev; |
| 1449 | int rc = 0; |
| 1450 | |
Stephen Boyd | 2fcabf9 | 2012-05-30 10:41:11 -0700 | [diff] [blame] | 1451 | pm_qos_add_request(&pm_qos_req, PM_QOS_CPU_DMA_LATENCY, |
| 1452 | PM_QOS_DEFAULT_VALUE); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1453 | wake_lock_init(&wakelock, WAKE_LOCK_SUSPEND, "vdec_suspend"); |
| 1454 | |
| 1455 | rc = alloc_chrdev_region(&vdec_device_no, 0, 1, "vdec"); |
| 1456 | if (rc < 0) { |
| 1457 | pr_err("%s: alloc_chrdev_region failed %d\n", __func__, rc); |
| 1458 | return rc; |
| 1459 | } |
| 1460 | |
| 1461 | driver_class = class_create(THIS_MODULE, "vdec"); |
| 1462 | if (IS_ERR(driver_class)) { |
| 1463 | rc = -ENOMEM; |
| 1464 | pr_err("%s: class_create failed %d\n", __func__, rc); |
| 1465 | goto vdec_init_err_unregister_chrdev_region; |
| 1466 | } |
| 1467 | class_dev = device_create(driver_class, NULL, |
| 1468 | vdec_device_no, NULL, "vdec"); |
| 1469 | if (!class_dev) { |
| 1470 | pr_err("%s: class_device_create failed %d\n", __func__, rc); |
| 1471 | rc = -ENOMEM; |
| 1472 | goto vdec_init_err_class_destroy; |
| 1473 | } |
| 1474 | |
| 1475 | cdev_init(&vdec_cdev, &vdec_fops); |
| 1476 | vdec_cdev.owner = THIS_MODULE; |
| 1477 | rc = cdev_add(&vdec_cdev, MKDEV(MAJOR(vdec_device_no), 0), 1); |
| 1478 | |
| 1479 | if (rc < 0) { |
| 1480 | pr_err("%s: cdev_add failed %d\n", __func__, rc); |
| 1481 | goto vdec_init_err_class_device_destroy; |
| 1482 | } |
| 1483 | |
| 1484 | memset(&deviceIdRegistry, 0, sizeof(deviceIdRegistry)); |
| 1485 | memset(&loadOnPorts, 0, sizeof(loadOnPorts)); |
| 1486 | numOfPorts = 0; |
| 1487 | |
| 1488 | return 0; |
| 1489 | |
| 1490 | vdec_init_err_class_device_destroy: |
| 1491 | device_destroy(driver_class, vdec_device_no); |
| 1492 | vdec_init_err_class_destroy: |
| 1493 | class_destroy(driver_class); |
| 1494 | vdec_init_err_unregister_chrdev_region: |
| 1495 | unregister_chrdev_region(vdec_device_no, 1); |
| 1496 | return rc; |
| 1497 | } |
| 1498 | |
| 1499 | static void __exit vdec_exit(void) |
| 1500 | { |
| 1501 | device_destroy(driver_class, vdec_device_no); |
| 1502 | class_destroy(driver_class); |
| 1503 | unregister_chrdev_region(vdec_device_no, 1); |
| 1504 | } |
| 1505 | |
| 1506 | MODULE_DESCRIPTION("video decoder driver for QSD platform"); |
| 1507 | MODULE_VERSION("2.00"); |
| 1508 | |
| 1509 | module_init(vdec_init); |
| 1510 | module_exit(vdec_exit); |