Brian Swetland | eb7b797 | 2009-07-17 14:45:17 +0200 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2008-2009 QUALCOMM Incorporated. |
| 3 | */ |
| 4 | |
| 5 | //FIXME: most allocations need not be GFP_ATOMIC |
| 6 | /* FIXME: management of mutexes */ |
| 7 | /* FIXME: msm_pmem_region_lookup return values */ |
| 8 | /* FIXME: way too many copy to/from user */ |
| 9 | /* FIXME: does region->active mean free */ |
| 10 | /* FIXME: check limits on command lenghts passed from userspace */ |
| 11 | /* FIXME: __msm_release: which queues should we flush when opencnt != 0 */ |
| 12 | |
| 13 | #include <linux/kernel.h> |
| 14 | #include <linux/module.h> |
| 15 | #include <linux/init.h> |
| 16 | #include <mach/board.h> |
| 17 | |
| 18 | #include <linux/fs.h> |
| 19 | #include <linux/list.h> |
| 20 | #include <linux/uaccess.h> |
| 21 | #include <linux/android_pmem.h> |
| 22 | #include <linux/poll.h> |
| 23 | #include <media/msm_camera.h> |
| 24 | #include <mach/camera.h> |
| 25 | |
| 26 | #define MSM_MAX_CAMERA_SENSORS 5 |
| 27 | |
| 28 | #define ERR_USER_COPY(to) pr_err("%s(%d): copy %s user\n", \ |
| 29 | __func__, __LINE__, ((to) ? "to" : "from")) |
| 30 | #define ERR_COPY_FROM_USER() ERR_USER_COPY(0) |
| 31 | #define ERR_COPY_TO_USER() ERR_USER_COPY(1) |
| 32 | |
| 33 | static struct class *msm_class; |
| 34 | static dev_t msm_devno; |
| 35 | static LIST_HEAD(msm_sensors); |
| 36 | |
| 37 | #define __CONTAINS(r, v, l, field) ({ \ |
| 38 | typeof(r) __r = r; \ |
| 39 | typeof(v) __v = v; \ |
| 40 | typeof(v) __e = __v + l; \ |
| 41 | int res = __v >= __r->field && \ |
| 42 | __e <= __r->field + __r->len; \ |
| 43 | res; \ |
| 44 | }) |
| 45 | |
| 46 | #define CONTAINS(r1, r2, field) ({ \ |
| 47 | typeof(r2) __r2 = r2; \ |
| 48 | __CONTAINS(r1, __r2->field, __r2->len, field); \ |
| 49 | }) |
| 50 | |
| 51 | #define IN_RANGE(r, v, field) ({ \ |
| 52 | typeof(r) __r = r; \ |
| 53 | typeof(v) __vv = v; \ |
| 54 | int res = ((__vv >= __r->field) && \ |
| 55 | (__vv < (__r->field + __r->len))); \ |
| 56 | res; \ |
| 57 | }) |
| 58 | |
| 59 | #define OVERLAPS(r1, r2, field) ({ \ |
| 60 | typeof(r1) __r1 = r1; \ |
| 61 | typeof(r2) __r2 = r2; \ |
| 62 | typeof(__r2->field) __v = __r2->field; \ |
| 63 | typeof(__v) __e = __v + __r2->len - 1; \ |
| 64 | int res = (IN_RANGE(__r1, __v, field) || \ |
| 65 | IN_RANGE(__r1, __e, field)); \ |
| 66 | res; \ |
| 67 | }) |
| 68 | |
| 69 | #define MSM_DRAIN_QUEUE_NOSYNC(sync, name) do { \ |
| 70 | struct msm_queue_cmd *qcmd = NULL; \ |
| 71 | CDBG("%s: draining queue "#name"\n", __func__); \ |
| 72 | while (!list_empty(&(sync)->name)) { \ |
| 73 | qcmd = list_first_entry(&(sync)->name, \ |
| 74 | struct msm_queue_cmd, list); \ |
| 75 | list_del_init(&qcmd->list); \ |
| 76 | kfree(qcmd); \ |
| 77 | }; \ |
| 78 | } while(0) |
| 79 | |
| 80 | #define MSM_DRAIN_QUEUE(sync, name) do { \ |
| 81 | unsigned long flags; \ |
| 82 | spin_lock_irqsave(&(sync)->name##_lock, flags); \ |
| 83 | MSM_DRAIN_QUEUE_NOSYNC(sync, name); \ |
| 84 | spin_unlock_irqrestore(&(sync)->name##_lock, flags); \ |
| 85 | } while(0) |
| 86 | |
| 87 | static int check_overlap(struct hlist_head *ptype, |
| 88 | unsigned long paddr, |
| 89 | unsigned long len) |
| 90 | { |
| 91 | struct msm_pmem_region *region; |
| 92 | struct msm_pmem_region t = { .paddr = paddr, .len = len }; |
| 93 | struct hlist_node *node; |
| 94 | |
| 95 | hlist_for_each_entry(region, node, ptype, list) { |
| 96 | if (CONTAINS(region, &t, paddr) || |
| 97 | CONTAINS(&t, region, paddr) || |
| 98 | OVERLAPS(region, &t, paddr)) { |
| 99 | printk(KERN_ERR |
| 100 | " region (PHYS %p len %ld)" |
| 101 | " clashes with registered region" |
| 102 | " (paddr %p len %ld)\n", |
| 103 | (void *)t.paddr, t.len, |
| 104 | (void *)region->paddr, region->len); |
| 105 | return -1; |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | return 0; |
| 110 | } |
| 111 | |
| 112 | static int msm_pmem_table_add(struct hlist_head *ptype, |
| 113 | struct msm_pmem_info *info) |
| 114 | { |
| 115 | struct file *file; |
| 116 | unsigned long paddr; |
| 117 | unsigned long vstart; |
| 118 | unsigned long len; |
| 119 | int rc; |
| 120 | struct msm_pmem_region *region; |
| 121 | |
| 122 | rc = get_pmem_file(info->fd, &paddr, &vstart, &len, &file); |
| 123 | if (rc < 0) { |
| 124 | pr_err("msm_pmem_table_add: get_pmem_file fd %d error %d\n", |
| 125 | info->fd, rc); |
| 126 | return rc; |
| 127 | } |
| 128 | |
| 129 | if (check_overlap(ptype, paddr, len) < 0) |
| 130 | return -EINVAL; |
| 131 | |
| 132 | CDBG("%s: type = %d, paddr = 0x%lx, vaddr = 0x%lx\n", |
| 133 | __func__, |
| 134 | info->type, paddr, (unsigned long)info->vaddr); |
| 135 | |
| 136 | region = kmalloc(sizeof(*region), GFP_KERNEL); |
| 137 | if (!region) |
| 138 | return -ENOMEM; |
| 139 | |
| 140 | INIT_HLIST_NODE(®ion->list); |
| 141 | |
| 142 | region->type = info->type; |
| 143 | region->vaddr = info->vaddr; |
| 144 | region->paddr = paddr; |
| 145 | region->len = len; |
| 146 | region->file = file; |
| 147 | region->y_off = info->y_off; |
| 148 | region->cbcr_off = info->cbcr_off; |
| 149 | region->fd = info->fd; |
| 150 | region->active = info->active; |
| 151 | |
| 152 | hlist_add_head(&(region->list), ptype); |
| 153 | |
| 154 | return 0; |
| 155 | } |
| 156 | |
| 157 | /* return of 0 means failure */ |
| 158 | static uint8_t msm_pmem_region_lookup(struct hlist_head *ptype, |
| 159 | int pmem_type, struct msm_pmem_region *reg, uint8_t maxcount) |
| 160 | { |
| 161 | struct msm_pmem_region *region; |
| 162 | struct msm_pmem_region *regptr; |
| 163 | struct hlist_node *node, *n; |
| 164 | |
| 165 | uint8_t rc = 0; |
| 166 | |
| 167 | regptr = reg; |
| 168 | |
| 169 | hlist_for_each_entry_safe(region, node, n, ptype, list) { |
| 170 | if (region->type == pmem_type && region->active) { |
| 171 | *regptr = *region; |
| 172 | rc += 1; |
| 173 | if (rc >= maxcount) |
| 174 | break; |
| 175 | regptr++; |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | return rc; |
| 180 | } |
| 181 | |
| 182 | static unsigned long msm_pmem_frame_ptov_lookup(struct msm_sync *sync, |
| 183 | unsigned long pyaddr, |
| 184 | unsigned long pcbcraddr, |
| 185 | uint32_t *yoff, uint32_t *cbcroff, int *fd) |
| 186 | { |
| 187 | struct msm_pmem_region *region; |
| 188 | struct hlist_node *node, *n; |
| 189 | |
| 190 | hlist_for_each_entry_safe(region, node, n, &sync->frame, list) { |
| 191 | if (pyaddr == (region->paddr + region->y_off) && |
| 192 | pcbcraddr == (region->paddr + |
| 193 | region->cbcr_off) && |
| 194 | region->active) { |
| 195 | /* offset since we could pass vaddr inside |
| 196 | * a registerd pmem buffer |
| 197 | */ |
| 198 | *yoff = region->y_off; |
| 199 | *cbcroff = region->cbcr_off; |
| 200 | *fd = region->fd; |
| 201 | region->active = 0; |
| 202 | return (unsigned long)(region->vaddr); |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | return 0; |
| 207 | } |
| 208 | |
| 209 | static unsigned long msm_pmem_stats_ptov_lookup(struct msm_sync *sync, |
| 210 | unsigned long addr, int *fd) |
| 211 | { |
| 212 | struct msm_pmem_region *region; |
| 213 | struct hlist_node *node, *n; |
| 214 | |
| 215 | hlist_for_each_entry_safe(region, node, n, &sync->stats, list) { |
| 216 | if (addr == region->paddr && region->active) { |
| 217 | /* offset since we could pass vaddr inside a |
| 218 | * registered pmem buffer */ |
| 219 | *fd = region->fd; |
| 220 | region->active = 0; |
| 221 | return (unsigned long)(region->vaddr); |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | return 0; |
| 226 | } |
| 227 | |
| 228 | static unsigned long msm_pmem_frame_vtop_lookup(struct msm_sync *sync, |
| 229 | unsigned long buffer, |
| 230 | uint32_t yoff, uint32_t cbcroff, int fd) |
| 231 | { |
| 232 | struct msm_pmem_region *region; |
| 233 | struct hlist_node *node, *n; |
| 234 | |
| 235 | hlist_for_each_entry_safe(region, |
| 236 | node, n, &sync->frame, list) { |
| 237 | if (((unsigned long)(region->vaddr) == buffer) && |
| 238 | (region->y_off == yoff) && |
| 239 | (region->cbcr_off == cbcroff) && |
| 240 | (region->fd == fd) && |
| 241 | (region->active == 0)) { |
| 242 | |
| 243 | region->active = 1; |
| 244 | return region->paddr; |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | return 0; |
| 249 | } |
| 250 | |
| 251 | static unsigned long msm_pmem_stats_vtop_lookup( |
| 252 | struct msm_sync *sync, |
| 253 | unsigned long buffer, |
| 254 | int fd) |
| 255 | { |
| 256 | struct msm_pmem_region *region; |
| 257 | struct hlist_node *node, *n; |
| 258 | |
| 259 | hlist_for_each_entry_safe(region, node, n, &sync->stats, list) { |
| 260 | if (((unsigned long)(region->vaddr) == buffer) && |
| 261 | (region->fd == fd) && region->active == 0) { |
| 262 | region->active = 1; |
| 263 | return region->paddr; |
| 264 | } |
| 265 | } |
| 266 | |
| 267 | return 0; |
| 268 | } |
| 269 | |
| 270 | static int __msm_pmem_table_del(struct msm_sync *sync, |
| 271 | struct msm_pmem_info *pinfo) |
| 272 | { |
| 273 | int rc = 0; |
| 274 | struct msm_pmem_region *region; |
| 275 | struct hlist_node *node, *n; |
| 276 | |
| 277 | switch (pinfo->type) { |
| 278 | case MSM_PMEM_OUTPUT1: |
| 279 | case MSM_PMEM_OUTPUT2: |
| 280 | case MSM_PMEM_THUMBAIL: |
| 281 | case MSM_PMEM_MAINIMG: |
| 282 | case MSM_PMEM_RAW_MAINIMG: |
| 283 | hlist_for_each_entry_safe(region, node, n, |
| 284 | &sync->frame, list) { |
| 285 | |
| 286 | if (pinfo->type == region->type && |
| 287 | pinfo->vaddr == region->vaddr && |
| 288 | pinfo->fd == region->fd) { |
| 289 | hlist_del(node); |
| 290 | put_pmem_file(region->file); |
| 291 | kfree(region); |
| 292 | } |
| 293 | } |
| 294 | break; |
| 295 | |
| 296 | case MSM_PMEM_AEC_AWB: |
| 297 | case MSM_PMEM_AF: |
| 298 | hlist_for_each_entry_safe(region, node, n, |
| 299 | &sync->stats, list) { |
| 300 | |
| 301 | if (pinfo->type == region->type && |
| 302 | pinfo->vaddr == region->vaddr && |
| 303 | pinfo->fd == region->fd) { |
| 304 | hlist_del(node); |
| 305 | put_pmem_file(region->file); |
| 306 | kfree(region); |
| 307 | } |
| 308 | } |
| 309 | break; |
| 310 | |
| 311 | default: |
| 312 | rc = -EINVAL; |
| 313 | break; |
| 314 | } |
| 315 | |
| 316 | return rc; |
| 317 | } |
| 318 | |
| 319 | static int msm_pmem_table_del(struct msm_sync *sync, void __user *arg) |
| 320 | { |
| 321 | struct msm_pmem_info info; |
| 322 | |
| 323 | if (copy_from_user(&info, arg, sizeof(info))) { |
| 324 | ERR_COPY_FROM_USER(); |
| 325 | return -EFAULT; |
| 326 | } |
| 327 | |
| 328 | return __msm_pmem_table_del(sync, &info); |
| 329 | } |
| 330 | |
| 331 | static int __msm_get_frame(struct msm_sync *sync, |
| 332 | struct msm_frame *frame) |
| 333 | { |
| 334 | unsigned long flags; |
| 335 | int rc = 0; |
| 336 | |
| 337 | struct msm_queue_cmd *qcmd = NULL; |
| 338 | struct msm_vfe_phy_info *pphy; |
| 339 | |
| 340 | spin_lock_irqsave(&sync->prev_frame_q_lock, flags); |
| 341 | if (!list_empty(&sync->prev_frame_q)) { |
| 342 | qcmd = list_first_entry(&sync->prev_frame_q, |
| 343 | struct msm_queue_cmd, list); |
| 344 | list_del_init(&qcmd->list); |
| 345 | } |
| 346 | spin_unlock_irqrestore(&sync->prev_frame_q_lock, flags); |
| 347 | |
| 348 | if (!qcmd) { |
| 349 | pr_err("%s: no preview frame.\n", __func__); |
| 350 | return -EAGAIN; |
| 351 | } |
| 352 | |
| 353 | pphy = (struct msm_vfe_phy_info *)(qcmd->command); |
| 354 | |
| 355 | frame->buffer = |
| 356 | msm_pmem_frame_ptov_lookup(sync, |
| 357 | pphy->y_phy, |
| 358 | pphy->cbcr_phy, &(frame->y_off), |
| 359 | &(frame->cbcr_off), &(frame->fd)); |
| 360 | if (!frame->buffer) { |
| 361 | pr_err("%s: cannot get frame, invalid lookup address " |
| 362 | "y=%x cbcr=%x offset=%d\n", |
| 363 | __FUNCTION__, |
| 364 | pphy->y_phy, |
| 365 | pphy->cbcr_phy, |
| 366 | frame->y_off); |
| 367 | rc = -EINVAL; |
| 368 | } |
| 369 | |
| 370 | CDBG("__msm_get_frame: y=0x%x, cbcr=0x%x, qcmd=0x%x, virt_addr=0x%x\n", |
| 371 | pphy->y_phy, pphy->cbcr_phy, (int) qcmd, (int) frame->buffer); |
| 372 | |
| 373 | kfree(qcmd); |
| 374 | return rc; |
| 375 | } |
| 376 | |
| 377 | static int msm_get_frame(struct msm_sync *sync, void __user *arg) |
| 378 | { |
| 379 | int rc = 0; |
| 380 | struct msm_frame frame; |
| 381 | |
| 382 | if (copy_from_user(&frame, |
| 383 | arg, |
| 384 | sizeof(struct msm_frame))) { |
| 385 | ERR_COPY_FROM_USER(); |
| 386 | return -EFAULT; |
| 387 | } |
| 388 | |
| 389 | rc = __msm_get_frame(sync, &frame); |
| 390 | if (rc < 0) |
| 391 | return rc; |
| 392 | |
| 393 | if (sync->croplen) { |
| 394 | if (frame.croplen > sync->croplen) { |
| 395 | pr_err("msm_get_frame: invalid frame croplen %d\n", |
| 396 | frame.croplen); |
| 397 | return -EINVAL; |
| 398 | } |
| 399 | |
| 400 | if (copy_to_user((void *)frame.cropinfo, |
| 401 | sync->cropinfo, |
| 402 | sync->croplen)) { |
| 403 | ERR_COPY_TO_USER(); |
| 404 | return -EFAULT; |
| 405 | } |
| 406 | } |
| 407 | |
| 408 | if (copy_to_user((void *)arg, |
| 409 | &frame, sizeof(struct msm_frame))) { |
| 410 | ERR_COPY_TO_USER(); |
| 411 | rc = -EFAULT; |
| 412 | } |
| 413 | |
| 414 | CDBG("Got frame!!!\n"); |
| 415 | |
| 416 | return rc; |
| 417 | } |
| 418 | |
| 419 | static int msm_enable_vfe(struct msm_sync *sync, void __user *arg) |
| 420 | { |
| 421 | int rc = -EIO; |
| 422 | struct camera_enable_cmd cfg; |
| 423 | |
| 424 | if (copy_from_user(&cfg, |
| 425 | arg, |
| 426 | sizeof(struct camera_enable_cmd))) { |
| 427 | ERR_COPY_FROM_USER(); |
| 428 | return -EFAULT; |
| 429 | } |
| 430 | |
| 431 | if (sync->vfefn.vfe_enable) |
| 432 | rc = sync->vfefn.vfe_enable(&cfg); |
| 433 | |
| 434 | CDBG("msm_enable_vfe: returned rc = %d\n", rc); |
| 435 | return rc; |
| 436 | } |
| 437 | |
| 438 | static int msm_disable_vfe(struct msm_sync *sync, void __user *arg) |
| 439 | { |
| 440 | int rc = -EIO; |
| 441 | struct camera_enable_cmd cfg; |
| 442 | |
| 443 | if (copy_from_user(&cfg, |
| 444 | arg, |
| 445 | sizeof(struct camera_enable_cmd))) { |
| 446 | ERR_COPY_FROM_USER(); |
| 447 | return -EFAULT; |
| 448 | } |
| 449 | |
| 450 | if (sync->vfefn.vfe_disable) |
| 451 | rc = sync->vfefn.vfe_disable(&cfg, NULL); |
| 452 | |
| 453 | CDBG("msm_disable_vfe: returned rc = %d\n", rc); |
| 454 | return rc; |
| 455 | } |
| 456 | |
| 457 | static struct msm_queue_cmd* __msm_control(struct msm_sync *sync, |
| 458 | struct msm_control_device_queue *queue, |
| 459 | struct msm_queue_cmd *qcmd, |
| 460 | int timeout) |
| 461 | { |
| 462 | unsigned long flags; |
| 463 | int rc; |
| 464 | |
| 465 | spin_lock_irqsave(&sync->msg_event_q_lock, flags); |
| 466 | list_add_tail(&qcmd->list, &sync->msg_event_q); |
| 467 | /* wake up config thread */ |
| 468 | wake_up(&sync->msg_event_wait); |
| 469 | spin_unlock_irqrestore(&sync->msg_event_q_lock, flags); |
| 470 | |
| 471 | if (!queue) |
| 472 | return NULL; |
| 473 | |
| 474 | /* wait for config status */ |
| 475 | rc = wait_event_interruptible_timeout( |
| 476 | queue->ctrl_status_wait, |
| 477 | !list_empty_careful(&queue->ctrl_status_q), |
| 478 | timeout); |
| 479 | if (list_empty_careful(&queue->ctrl_status_q)) { |
| 480 | if (!rc) |
| 481 | rc = -ETIMEDOUT; |
| 482 | if (rc < 0) { |
| 483 | pr_err("msm_control: wait_event error %d\n", rc); |
| 484 | #if 0 |
| 485 | /* This is a bit scary. If we time out too early, we |
| 486 | * will free qcmd at the end of this function, and the |
| 487 | * dsp may do the same when it does respond, so we |
| 488 | * remove the message from the source queue. |
| 489 | */ |
| 490 | pr_err("%s: error waiting for ctrl_status_q: %d\n", |
| 491 | __func__, rc); |
| 492 | spin_lock_irqsave(&sync->msg_event_q_lock, flags); |
| 493 | list_del_init(&qcmd->list); |
| 494 | spin_unlock_irqrestore(&sync->msg_event_q_lock, flags); |
| 495 | #endif |
| 496 | return ERR_PTR(rc); |
| 497 | } |
| 498 | } |
| 499 | |
| 500 | /* control command status is ready */ |
| 501 | spin_lock_irqsave(&queue->ctrl_status_q_lock, flags); |
| 502 | BUG_ON(list_empty(&queue->ctrl_status_q)); |
| 503 | qcmd = list_first_entry(&queue->ctrl_status_q, |
| 504 | struct msm_queue_cmd, list); |
| 505 | list_del_init(&qcmd->list); |
| 506 | spin_unlock_irqrestore(&queue->ctrl_status_q_lock, flags); |
| 507 | |
| 508 | return qcmd; |
| 509 | } |
| 510 | |
| 511 | static int msm_control(struct msm_control_device *ctrl_pmsm, |
| 512 | int block, |
| 513 | void __user *arg) |
| 514 | { |
| 515 | int rc = 0; |
| 516 | |
| 517 | struct msm_sync *sync = ctrl_pmsm->pmsm->sync; |
| 518 | struct msm_ctrl_cmd udata, *ctrlcmd; |
| 519 | struct msm_queue_cmd *qcmd = NULL, *qcmd_temp; |
| 520 | |
| 521 | if (copy_from_user(&udata, arg, sizeof(struct msm_ctrl_cmd))) { |
| 522 | ERR_COPY_FROM_USER(); |
| 523 | rc = -EFAULT; |
| 524 | goto end; |
| 525 | } |
| 526 | |
| 527 | qcmd = kmalloc(sizeof(struct msm_queue_cmd) + |
| 528 | sizeof(struct msm_ctrl_cmd) + udata.length, |
| 529 | GFP_KERNEL); |
| 530 | if (!qcmd) { |
| 531 | pr_err("msm_control: cannot allocate buffer\n"); |
| 532 | rc = -ENOMEM; |
| 533 | goto end; |
| 534 | } |
| 535 | |
| 536 | qcmd->type = MSM_CAM_Q_CTRL; |
| 537 | qcmd->command = ctrlcmd = (struct msm_ctrl_cmd *)(qcmd + 1); |
| 538 | *ctrlcmd = udata; |
| 539 | ctrlcmd->value = ctrlcmd + 1; |
| 540 | |
| 541 | if (udata.length) { |
| 542 | if (copy_from_user(ctrlcmd->value, |
| 543 | udata.value, udata.length)) { |
| 544 | ERR_COPY_FROM_USER(); |
| 545 | rc = -EFAULT; |
| 546 | goto end; |
| 547 | } |
| 548 | } |
| 549 | |
| 550 | if (!block) { |
| 551 | /* qcmd will be set to NULL */ |
| 552 | qcmd = __msm_control(sync, NULL, qcmd, 0); |
| 553 | goto end; |
| 554 | } |
| 555 | |
| 556 | qcmd_temp = __msm_control(sync, |
| 557 | &ctrl_pmsm->ctrl_q, |
| 558 | qcmd, MAX_SCHEDULE_TIMEOUT); |
| 559 | |
| 560 | if (IS_ERR(qcmd_temp)) { |
| 561 | rc = PTR_ERR(qcmd_temp); |
| 562 | goto end; |
| 563 | } |
| 564 | qcmd = qcmd_temp; |
| 565 | |
| 566 | if (qcmd->command) { |
| 567 | void __user *to = udata.value; |
| 568 | udata = *(struct msm_ctrl_cmd *)qcmd->command; |
| 569 | if (udata.length > 0) { |
| 570 | if (copy_to_user(to, |
| 571 | udata.value, |
| 572 | udata.length)) { |
| 573 | ERR_COPY_TO_USER(); |
| 574 | rc = -EFAULT; |
| 575 | goto end; |
| 576 | } |
| 577 | } |
| 578 | udata.value = to; |
| 579 | |
| 580 | if (copy_to_user((void *)arg, &udata, |
| 581 | sizeof(struct msm_ctrl_cmd))) { |
| 582 | ERR_COPY_TO_USER(); |
| 583 | rc = -EFAULT; |
| 584 | goto end; |
| 585 | } |
| 586 | } |
| 587 | |
| 588 | end: |
| 589 | /* Note: if we get here as a result of an error, we will free the |
| 590 | * qcmd that we kmalloc() in this function. When we come here as |
| 591 | * a result of a successful completion, we are freeing the qcmd that |
| 592 | * we dequeued from queue->ctrl_status_q. |
| 593 | */ |
| 594 | if (qcmd) |
| 595 | kfree(qcmd); |
| 596 | |
| 597 | CDBG("msm_control: end rc = %d\n", rc); |
| 598 | return rc; |
| 599 | } |
| 600 | |
| 601 | static int msm_get_stats(struct msm_sync *sync, void __user *arg) |
| 602 | { |
| 603 | unsigned long flags; |
| 604 | int timeout; |
| 605 | int rc = 0; |
| 606 | |
| 607 | struct msm_stats_event_ctrl se; |
| 608 | |
| 609 | struct msm_queue_cmd *qcmd = NULL; |
| 610 | struct msm_ctrl_cmd *ctrl = NULL; |
| 611 | struct msm_vfe_resp *data = NULL; |
| 612 | struct msm_stats_buf stats; |
| 613 | |
| 614 | if (copy_from_user(&se, arg, |
| 615 | sizeof(struct msm_stats_event_ctrl))) { |
| 616 | ERR_COPY_FROM_USER(); |
| 617 | return -EFAULT; |
| 618 | } |
| 619 | |
| 620 | timeout = (int)se.timeout_ms; |
| 621 | |
| 622 | CDBG("msm_get_stats timeout %d\n", timeout); |
| 623 | rc = wait_event_interruptible_timeout( |
| 624 | sync->msg_event_wait, |
| 625 | !list_empty_careful(&sync->msg_event_q), |
| 626 | msecs_to_jiffies(timeout)); |
| 627 | if (list_empty_careful(&sync->msg_event_q)) { |
| 628 | if (rc == 0) |
| 629 | rc = -ETIMEDOUT; |
| 630 | if (rc < 0) { |
| 631 | pr_err("msm_get_stats error %d\n", rc); |
| 632 | return rc; |
| 633 | } |
| 634 | } |
| 635 | CDBG("msm_get_stats returned from wait: %d\n", rc); |
| 636 | |
| 637 | spin_lock_irqsave(&sync->msg_event_q_lock, flags); |
| 638 | BUG_ON(list_empty(&sync->msg_event_q)); |
| 639 | qcmd = list_first_entry(&sync->msg_event_q, |
| 640 | struct msm_queue_cmd, list); |
| 641 | list_del_init(&qcmd->list); |
| 642 | spin_unlock_irqrestore(&sync->msg_event_q_lock, flags); |
| 643 | |
| 644 | CDBG("=== received from DSP === %d\n", qcmd->type); |
| 645 | |
| 646 | switch (qcmd->type) { |
| 647 | case MSM_CAM_Q_VFE_EVT: |
| 648 | case MSM_CAM_Q_VFE_MSG: |
| 649 | data = (struct msm_vfe_resp *)(qcmd->command); |
| 650 | |
| 651 | /* adsp event and message */ |
| 652 | se.resptype = MSM_CAM_RESP_STAT_EVT_MSG; |
| 653 | |
| 654 | /* 0 - msg from aDSP, 1 - event from mARM */ |
| 655 | se.stats_event.type = data->evt_msg.type; |
| 656 | se.stats_event.msg_id = data->evt_msg.msg_id; |
| 657 | se.stats_event.len = data->evt_msg.len; |
| 658 | |
| 659 | CDBG("msm_get_stats, qcmd->type = %d\n", qcmd->type); |
| 660 | CDBG("length = %d\n", se.stats_event.len); |
| 661 | CDBG("msg_id = %d\n", se.stats_event.msg_id); |
| 662 | |
| 663 | if ((data->type == VFE_MSG_STATS_AF) || |
| 664 | (data->type == VFE_MSG_STATS_WE)) { |
| 665 | |
| 666 | stats.buffer = |
| 667 | msm_pmem_stats_ptov_lookup(sync, |
| 668 | data->phy.sbuf_phy, |
| 669 | &(stats.fd)); |
| 670 | if (!stats.buffer) { |
| 671 | pr_err("%s: msm_pmem_stats_ptov_lookup error\n", |
| 672 | __FUNCTION__); |
| 673 | rc = -EINVAL; |
| 674 | goto failure; |
| 675 | } |
| 676 | |
| 677 | if (copy_to_user((void *)(se.stats_event.data), |
| 678 | &stats, |
| 679 | sizeof(struct msm_stats_buf))) { |
| 680 | ERR_COPY_TO_USER(); |
| 681 | rc = -EFAULT; |
| 682 | goto failure; |
| 683 | } |
| 684 | } else if ((data->evt_msg.len > 0) && |
| 685 | (data->type == VFE_MSG_GENERAL)) { |
| 686 | if (copy_to_user((void *)(se.stats_event.data), |
| 687 | data->evt_msg.data, |
| 688 | data->evt_msg.len)) { |
| 689 | ERR_COPY_TO_USER(); |
| 690 | rc = -EFAULT; |
| 691 | } |
| 692 | } else if (data->type == VFE_MSG_OUTPUT1 || |
| 693 | data->type == VFE_MSG_OUTPUT2) { |
| 694 | if (copy_to_user((void *)(se.stats_event.data), |
| 695 | data->extdata, |
| 696 | data->extlen)) { |
| 697 | ERR_COPY_TO_USER(); |
| 698 | rc = -EFAULT; |
| 699 | } |
| 700 | } else if (data->type == VFE_MSG_SNAPSHOT && sync->pict_pp) { |
| 701 | struct msm_postproc buf; |
| 702 | struct msm_pmem_region region; |
| 703 | buf.fmnum = msm_pmem_region_lookup(&sync->frame, |
| 704 | MSM_PMEM_MAINIMG, |
| 705 | ®ion, 1); |
| 706 | if (buf.fmnum == 1) { |
| 707 | buf.fmain.buffer = (unsigned long)region.vaddr; |
| 708 | buf.fmain.y_off = region.y_off; |
| 709 | buf.fmain.cbcr_off = region.cbcr_off; |
| 710 | buf.fmain.fd = region.fd; |
| 711 | } else { |
| 712 | buf.fmnum = msm_pmem_region_lookup(&sync->frame, |
| 713 | MSM_PMEM_RAW_MAINIMG, |
| 714 | ®ion, 1); |
| 715 | if (buf.fmnum == 1) { |
| 716 | buf.fmain.path = MSM_FRAME_PREV_2; |
| 717 | buf.fmain.buffer = |
| 718 | (unsigned long)region.vaddr; |
| 719 | buf.fmain.fd = region.fd; |
| 720 | } |
| 721 | else { |
| 722 | pr_err("%s: pmem lookup failed\n", |
| 723 | __func__); |
| 724 | rc = -EINVAL; |
| 725 | } |
| 726 | } |
| 727 | |
| 728 | if (copy_to_user((void *)(se.stats_event.data), &buf, |
| 729 | sizeof(buf))) { |
| 730 | ERR_COPY_TO_USER(); |
| 731 | rc = -EFAULT; |
| 732 | goto failure; |
| 733 | } |
| 734 | CDBG("snapshot copy_to_user!\n"); |
| 735 | } |
| 736 | break; |
| 737 | |
| 738 | case MSM_CAM_Q_CTRL: |
| 739 | /* control command from control thread */ |
| 740 | ctrl = (struct msm_ctrl_cmd *)(qcmd->command); |
| 741 | |
| 742 | CDBG("msm_get_stats, qcmd->type = %d\n", qcmd->type); |
| 743 | CDBG("length = %d\n", ctrl->length); |
| 744 | |
| 745 | if (ctrl->length > 0) { |
| 746 | if (copy_to_user((void *)(se.ctrl_cmd.value), |
| 747 | ctrl->value, |
| 748 | ctrl->length)) { |
| 749 | ERR_COPY_TO_USER(); |
| 750 | rc = -EFAULT; |
| 751 | goto failure; |
| 752 | } |
| 753 | } |
| 754 | |
| 755 | se.resptype = MSM_CAM_RESP_CTRL; |
| 756 | |
| 757 | /* what to control */ |
| 758 | se.ctrl_cmd.type = ctrl->type; |
| 759 | se.ctrl_cmd.length = ctrl->length; |
| 760 | se.ctrl_cmd.resp_fd = ctrl->resp_fd; |
| 761 | break; |
| 762 | |
| 763 | case MSM_CAM_Q_V4L2_REQ: |
| 764 | /* control command from v4l2 client */ |
| 765 | ctrl = (struct msm_ctrl_cmd *)(qcmd->command); |
| 766 | |
| 767 | CDBG("msm_get_stats, qcmd->type = %d\n", qcmd->type); |
| 768 | CDBG("length = %d\n", ctrl->length); |
| 769 | |
| 770 | if (ctrl->length > 0) { |
| 771 | if (copy_to_user((void *)(se.ctrl_cmd.value), |
| 772 | ctrl->value, ctrl->length)) { |
| 773 | ERR_COPY_TO_USER(); |
| 774 | rc = -EFAULT; |
| 775 | goto failure; |
| 776 | } |
| 777 | } |
| 778 | |
| 779 | /* 2 tells config thread this is v4l2 request */ |
| 780 | se.resptype = MSM_CAM_RESP_V4L2; |
| 781 | |
| 782 | /* what to control */ |
| 783 | se.ctrl_cmd.type = ctrl->type; |
| 784 | se.ctrl_cmd.length = ctrl->length; |
| 785 | break; |
| 786 | |
| 787 | default: |
| 788 | rc = -EFAULT; |
| 789 | goto failure; |
| 790 | } /* switch qcmd->type */ |
| 791 | |
| 792 | if (copy_to_user((void *)arg, &se, sizeof(se))) { |
| 793 | ERR_COPY_TO_USER(); |
| 794 | rc = -EFAULT; |
| 795 | } |
| 796 | |
| 797 | failure: |
| 798 | if (qcmd) |
| 799 | kfree(qcmd); |
| 800 | |
| 801 | CDBG("msm_get_stats: %d\n", rc); |
| 802 | return rc; |
| 803 | } |
| 804 | |
| 805 | static int msm_ctrl_cmd_done(struct msm_control_device *ctrl_pmsm, |
| 806 | void __user *arg) |
| 807 | { |
| 808 | unsigned long flags; |
| 809 | int rc = 0; |
| 810 | |
| 811 | struct msm_ctrl_cmd udata, *ctrlcmd; |
| 812 | struct msm_queue_cmd *qcmd = NULL; |
| 813 | |
| 814 | if (copy_from_user(&udata, arg, sizeof(struct msm_ctrl_cmd))) { |
| 815 | ERR_COPY_FROM_USER(); |
| 816 | rc = -EFAULT; |
| 817 | goto end; |
| 818 | } |
| 819 | |
| 820 | qcmd = kmalloc(sizeof(struct msm_queue_cmd) + |
| 821 | sizeof(struct msm_ctrl_cmd) + udata.length, |
| 822 | GFP_KERNEL); |
| 823 | if (!qcmd) { |
| 824 | rc = -ENOMEM; |
| 825 | goto end; |
| 826 | } |
| 827 | |
| 828 | qcmd->command = ctrlcmd = (struct msm_ctrl_cmd *)(qcmd + 1); |
| 829 | *ctrlcmd = udata; |
| 830 | if (udata.length > 0) { |
| 831 | ctrlcmd->value = ctrlcmd + 1; |
| 832 | if (copy_from_user(ctrlcmd->value, |
| 833 | (void *)udata.value, |
| 834 | udata.length)) { |
| 835 | ERR_COPY_FROM_USER(); |
| 836 | rc = -EFAULT; |
| 837 | kfree(qcmd); |
| 838 | goto end; |
| 839 | } |
| 840 | } |
| 841 | else ctrlcmd->value = NULL; |
| 842 | |
| 843 | end: |
| 844 | CDBG("msm_ctrl_cmd_done: end rc = %d\n", rc); |
| 845 | if (rc == 0) { |
| 846 | /* wake up control thread */ |
| 847 | spin_lock_irqsave(&ctrl_pmsm->ctrl_q.ctrl_status_q_lock, flags); |
| 848 | list_add_tail(&qcmd->list, &ctrl_pmsm->ctrl_q.ctrl_status_q); |
| 849 | wake_up(&ctrl_pmsm->ctrl_q.ctrl_status_wait); |
| 850 | spin_unlock_irqrestore(&ctrl_pmsm->ctrl_q.ctrl_status_q_lock, flags); |
| 851 | } |
| 852 | |
| 853 | return rc; |
| 854 | } |
| 855 | |
| 856 | static int msm_config_vfe(struct msm_sync *sync, void __user *arg) |
| 857 | { |
| 858 | struct msm_vfe_cfg_cmd cfgcmd; |
| 859 | struct msm_pmem_region region[8]; |
| 860 | struct axidata axi_data; |
| 861 | void *data = NULL; |
| 862 | int rc = -EIO; |
| 863 | |
| 864 | memset(&axi_data, 0, sizeof(axi_data)); |
| 865 | |
| 866 | if (copy_from_user(&cfgcmd, arg, sizeof(cfgcmd))) { |
| 867 | ERR_COPY_FROM_USER(); |
| 868 | return -EFAULT; |
| 869 | } |
| 870 | |
| 871 | switch(cfgcmd.cmd_type) { |
| 872 | case CMD_STATS_ENABLE: |
| 873 | axi_data.bufnum1 = |
| 874 | msm_pmem_region_lookup(&sync->stats, |
| 875 | MSM_PMEM_AEC_AWB, ®ion[0], |
| 876 | NUM_WB_EXP_STAT_OUTPUT_BUFFERS); |
| 877 | if (!axi_data.bufnum1) { |
| 878 | pr_err("%s: pmem region lookup error\n", __FUNCTION__); |
| 879 | return -EINVAL; |
| 880 | } |
| 881 | axi_data.region = ®ion[0]; |
| 882 | data = &axi_data; |
| 883 | break; |
| 884 | case CMD_STATS_AF_ENABLE: |
| 885 | axi_data.bufnum1 = |
| 886 | msm_pmem_region_lookup(&sync->stats, |
| 887 | MSM_PMEM_AF, ®ion[0], |
| 888 | NUM_AF_STAT_OUTPUT_BUFFERS); |
| 889 | if (!axi_data.bufnum1) { |
| 890 | pr_err("%s: pmem region lookup error\n", __FUNCTION__); |
| 891 | return -EINVAL; |
| 892 | } |
| 893 | axi_data.region = ®ion[0]; |
| 894 | data = &axi_data; |
| 895 | break; |
| 896 | case CMD_GENERAL: |
| 897 | case CMD_STATS_DISABLE: |
| 898 | break; |
| 899 | default: |
| 900 | pr_err("%s: unknown command type %d\n", |
| 901 | __FUNCTION__, cfgcmd.cmd_type); |
| 902 | return -EINVAL; |
| 903 | } |
| 904 | |
| 905 | |
| 906 | if (sync->vfefn.vfe_config) |
| 907 | rc = sync->vfefn.vfe_config(&cfgcmd, data); |
| 908 | |
| 909 | return rc; |
| 910 | } |
| 911 | |
| 912 | static int msm_frame_axi_cfg(struct msm_sync *sync, |
| 913 | struct msm_vfe_cfg_cmd *cfgcmd) |
| 914 | { |
| 915 | int rc = -EIO; |
| 916 | struct axidata axi_data; |
| 917 | void *data = &axi_data; |
| 918 | struct msm_pmem_region region[8]; |
| 919 | int pmem_type; |
| 920 | |
| 921 | memset(&axi_data, 0, sizeof(axi_data)); |
| 922 | |
| 923 | switch (cfgcmd->cmd_type) { |
| 924 | case CMD_AXI_CFG_OUT1: |
| 925 | pmem_type = MSM_PMEM_OUTPUT1; |
| 926 | axi_data.bufnum1 = |
| 927 | msm_pmem_region_lookup(&sync->frame, pmem_type, |
| 928 | ®ion[0], 8); |
| 929 | if (!axi_data.bufnum1) { |
| 930 | pr_err("%s: pmem region lookup error\n", __FUNCTION__); |
| 931 | return -EINVAL; |
| 932 | } |
| 933 | break; |
| 934 | |
| 935 | case CMD_AXI_CFG_OUT2: |
| 936 | pmem_type = MSM_PMEM_OUTPUT2; |
| 937 | axi_data.bufnum2 = |
| 938 | msm_pmem_region_lookup(&sync->frame, pmem_type, |
| 939 | ®ion[0], 8); |
| 940 | if (!axi_data.bufnum2) { |
| 941 | pr_err("%s: pmem region lookup error\n", __FUNCTION__); |
| 942 | return -EINVAL; |
| 943 | } |
| 944 | break; |
| 945 | |
| 946 | case CMD_AXI_CFG_SNAP_O1_AND_O2: |
| 947 | pmem_type = MSM_PMEM_THUMBAIL; |
| 948 | axi_data.bufnum1 = |
| 949 | msm_pmem_region_lookup(&sync->frame, pmem_type, |
| 950 | ®ion[0], 8); |
| 951 | if (!axi_data.bufnum1) { |
| 952 | pr_err("%s: pmem region lookup error\n", __FUNCTION__); |
| 953 | return -EINVAL; |
| 954 | } |
| 955 | |
| 956 | pmem_type = MSM_PMEM_MAINIMG; |
| 957 | axi_data.bufnum2 = |
| 958 | msm_pmem_region_lookup(&sync->frame, pmem_type, |
| 959 | ®ion[axi_data.bufnum1], 8); |
| 960 | if (!axi_data.bufnum2) { |
| 961 | pr_err("%s: pmem region lookup error\n", __FUNCTION__); |
| 962 | return -EINVAL; |
| 963 | } |
| 964 | break; |
| 965 | |
| 966 | case CMD_RAW_PICT_AXI_CFG: |
| 967 | pmem_type = MSM_PMEM_RAW_MAINIMG; |
| 968 | axi_data.bufnum2 = |
| 969 | msm_pmem_region_lookup(&sync->frame, pmem_type, |
| 970 | ®ion[0], 8); |
| 971 | if (!axi_data.bufnum2) { |
| 972 | pr_err("%s: pmem region lookup error\n", __FUNCTION__); |
| 973 | return -EINVAL; |
| 974 | } |
| 975 | break; |
| 976 | |
| 977 | case CMD_GENERAL: |
| 978 | data = NULL; |
| 979 | break; |
| 980 | |
| 981 | default: |
| 982 | pr_err("%s: unknown command type %d\n", |
| 983 | __FUNCTION__, cfgcmd->cmd_type); |
| 984 | return -EINVAL; |
| 985 | } |
| 986 | |
| 987 | axi_data.region = ®ion[0]; |
| 988 | |
| 989 | /* send the AXI configuration command to driver */ |
| 990 | if (sync->vfefn.vfe_config) |
| 991 | rc = sync->vfefn.vfe_config(cfgcmd, data); |
| 992 | |
| 993 | return rc; |
| 994 | } |
| 995 | |
| 996 | static int msm_get_sensor_info(struct msm_sync *sync, void __user *arg) |
| 997 | { |
| 998 | int rc = 0; |
| 999 | struct msm_camsensor_info info; |
| 1000 | struct msm_camera_sensor_info *sdata; |
| 1001 | |
| 1002 | if (copy_from_user(&info, |
| 1003 | arg, |
| 1004 | sizeof(struct msm_camsensor_info))) { |
| 1005 | ERR_COPY_FROM_USER(); |
| 1006 | return -EFAULT; |
| 1007 | } |
| 1008 | |
| 1009 | sdata = sync->pdev->dev.platform_data; |
| 1010 | CDBG("sensor_name %s\n", sdata->sensor_name); |
| 1011 | |
| 1012 | memcpy(&info.name[0], |
| 1013 | sdata->sensor_name, |
| 1014 | MAX_SENSOR_NAME); |
| 1015 | info.flash_enabled = sdata->flash_type != MSM_CAMERA_FLASH_NONE; |
| 1016 | |
| 1017 | /* copy back to user space */ |
| 1018 | if (copy_to_user((void *)arg, |
| 1019 | &info, |
| 1020 | sizeof(struct msm_camsensor_info))) { |
| 1021 | ERR_COPY_TO_USER(); |
| 1022 | rc = -EFAULT; |
| 1023 | } |
| 1024 | |
| 1025 | return rc; |
| 1026 | } |
| 1027 | |
| 1028 | static int __msm_put_frame_buf(struct msm_sync *sync, |
| 1029 | struct msm_frame *pb) |
| 1030 | { |
| 1031 | unsigned long pphy; |
| 1032 | struct msm_vfe_cfg_cmd cfgcmd; |
| 1033 | |
| 1034 | int rc = -EIO; |
| 1035 | |
| 1036 | pphy = msm_pmem_frame_vtop_lookup(sync, |
| 1037 | pb->buffer, |
| 1038 | pb->y_off, pb->cbcr_off, pb->fd); |
| 1039 | |
| 1040 | if (pphy != 0) { |
| 1041 | CDBG("rel: vaddr = 0x%lx, paddr = 0x%lx\n", |
| 1042 | pb->buffer, pphy); |
| 1043 | cfgcmd.cmd_type = CMD_FRAME_BUF_RELEASE; |
| 1044 | cfgcmd.value = (void *)pb; |
| 1045 | if (sync->vfefn.vfe_config) |
| 1046 | rc = sync->vfefn.vfe_config(&cfgcmd, &pphy); |
| 1047 | } else { |
| 1048 | pr_err("%s: msm_pmem_frame_vtop_lookup failed\n", |
| 1049 | __FUNCTION__); |
| 1050 | rc = -EINVAL; |
| 1051 | } |
| 1052 | |
| 1053 | return rc; |
| 1054 | } |
| 1055 | |
| 1056 | static int msm_put_frame_buffer(struct msm_sync *sync, void __user *arg) |
| 1057 | { |
| 1058 | struct msm_frame buf_t; |
| 1059 | |
| 1060 | if (copy_from_user(&buf_t, |
| 1061 | arg, |
| 1062 | sizeof(struct msm_frame))) { |
| 1063 | ERR_COPY_FROM_USER(); |
| 1064 | return -EFAULT; |
| 1065 | } |
| 1066 | |
| 1067 | return __msm_put_frame_buf(sync, &buf_t); |
| 1068 | } |
| 1069 | |
| 1070 | static int __msm_register_pmem(struct msm_sync *sync, |
| 1071 | struct msm_pmem_info *pinfo) |
| 1072 | { |
| 1073 | int rc = 0; |
| 1074 | |
| 1075 | switch (pinfo->type) { |
| 1076 | case MSM_PMEM_OUTPUT1: |
| 1077 | case MSM_PMEM_OUTPUT2: |
| 1078 | case MSM_PMEM_THUMBAIL: |
| 1079 | case MSM_PMEM_MAINIMG: |
| 1080 | case MSM_PMEM_RAW_MAINIMG: |
| 1081 | rc = msm_pmem_table_add(&sync->frame, pinfo); |
| 1082 | break; |
| 1083 | |
| 1084 | case MSM_PMEM_AEC_AWB: |
| 1085 | case MSM_PMEM_AF: |
| 1086 | rc = msm_pmem_table_add(&sync->stats, pinfo); |
| 1087 | break; |
| 1088 | |
| 1089 | default: |
| 1090 | rc = -EINVAL; |
| 1091 | break; |
| 1092 | } |
| 1093 | |
| 1094 | return rc; |
| 1095 | } |
| 1096 | |
| 1097 | static int msm_register_pmem(struct msm_sync *sync, void __user *arg) |
| 1098 | { |
| 1099 | struct msm_pmem_info info; |
| 1100 | |
| 1101 | if (copy_from_user(&info, arg, sizeof(info))) { |
| 1102 | ERR_COPY_FROM_USER(); |
| 1103 | return -EFAULT; |
| 1104 | } |
| 1105 | |
| 1106 | return __msm_register_pmem(sync, &info); |
| 1107 | } |
| 1108 | |
| 1109 | static int msm_stats_axi_cfg(struct msm_sync *sync, |
| 1110 | struct msm_vfe_cfg_cmd *cfgcmd) |
| 1111 | { |
| 1112 | int rc = -EIO; |
| 1113 | struct axidata axi_data; |
| 1114 | void *data = &axi_data; |
| 1115 | |
| 1116 | struct msm_pmem_region region[3]; |
| 1117 | int pmem_type = MSM_PMEM_MAX; |
| 1118 | |
| 1119 | memset(&axi_data, 0, sizeof(axi_data)); |
| 1120 | |
| 1121 | switch (cfgcmd->cmd_type) { |
| 1122 | case CMD_STATS_AXI_CFG: |
| 1123 | pmem_type = MSM_PMEM_AEC_AWB; |
| 1124 | break; |
| 1125 | case CMD_STATS_AF_AXI_CFG: |
| 1126 | pmem_type = MSM_PMEM_AF; |
| 1127 | break; |
| 1128 | case CMD_GENERAL: |
| 1129 | data = NULL; |
| 1130 | break; |
| 1131 | default: |
| 1132 | pr_err("%s: unknown command type %d\n", |
| 1133 | __FUNCTION__, cfgcmd->cmd_type); |
| 1134 | return -EINVAL; |
| 1135 | } |
| 1136 | |
| 1137 | if (cfgcmd->cmd_type != CMD_GENERAL) { |
| 1138 | axi_data.bufnum1 = |
| 1139 | msm_pmem_region_lookup(&sync->stats, pmem_type, |
| 1140 | ®ion[0], NUM_WB_EXP_STAT_OUTPUT_BUFFERS); |
| 1141 | if (!axi_data.bufnum1) { |
| 1142 | pr_err("%s: pmem region lookup error\n", __FUNCTION__); |
| 1143 | return -EINVAL; |
| 1144 | } |
| 1145 | axi_data.region = ®ion[0]; |
| 1146 | } |
| 1147 | |
| 1148 | /* send the AEC/AWB STATS configuration command to driver */ |
| 1149 | if (sync->vfefn.vfe_config) |
| 1150 | rc = sync->vfefn.vfe_config(cfgcmd, &axi_data); |
| 1151 | |
| 1152 | return rc; |
| 1153 | } |
| 1154 | |
| 1155 | static int msm_put_stats_buffer(struct msm_sync *sync, void __user *arg) |
| 1156 | { |
| 1157 | int rc = -EIO; |
| 1158 | |
| 1159 | struct msm_stats_buf buf; |
| 1160 | unsigned long pphy; |
| 1161 | struct msm_vfe_cfg_cmd cfgcmd; |
| 1162 | |
| 1163 | if (copy_from_user(&buf, arg, |
| 1164 | sizeof(struct msm_stats_buf))) { |
| 1165 | ERR_COPY_FROM_USER(); |
| 1166 | return -EFAULT; |
| 1167 | } |
| 1168 | |
| 1169 | CDBG("msm_put_stats_buffer\n"); |
| 1170 | pphy = msm_pmem_stats_vtop_lookup(sync, buf.buffer, buf.fd); |
| 1171 | |
| 1172 | if (pphy != 0) { |
| 1173 | if (buf.type == STAT_AEAW) |
| 1174 | cfgcmd.cmd_type = CMD_STATS_BUF_RELEASE; |
| 1175 | else if (buf.type == STAT_AF) |
| 1176 | cfgcmd.cmd_type = CMD_STATS_AF_BUF_RELEASE; |
| 1177 | else { |
| 1178 | pr_err("%s: invalid buf type %d\n", |
| 1179 | __FUNCTION__, |
| 1180 | buf.type); |
| 1181 | rc = -EINVAL; |
| 1182 | goto put_done; |
| 1183 | } |
| 1184 | |
| 1185 | cfgcmd.value = (void *)&buf; |
| 1186 | |
| 1187 | if (sync->vfefn.vfe_config) { |
| 1188 | rc = sync->vfefn.vfe_config(&cfgcmd, &pphy); |
| 1189 | if (rc < 0) |
| 1190 | pr_err("msm_put_stats_buffer: "\ |
| 1191 | "vfe_config err %d\n", rc); |
| 1192 | } else |
| 1193 | pr_err("msm_put_stats_buffer: vfe_config is NULL\n"); |
| 1194 | } else { |
| 1195 | pr_err("msm_put_stats_buffer: NULL physical address\n"); |
| 1196 | rc = -EINVAL; |
| 1197 | } |
| 1198 | |
| 1199 | put_done: |
| 1200 | return rc; |
| 1201 | } |
| 1202 | |
| 1203 | static int msm_axi_config(struct msm_sync *sync, void __user *arg) |
| 1204 | { |
| 1205 | struct msm_vfe_cfg_cmd cfgcmd; |
| 1206 | |
| 1207 | if (copy_from_user(&cfgcmd, arg, sizeof(cfgcmd))) { |
| 1208 | ERR_COPY_FROM_USER(); |
| 1209 | return -EFAULT; |
| 1210 | } |
| 1211 | |
| 1212 | switch (cfgcmd.cmd_type) { |
| 1213 | case CMD_AXI_CFG_OUT1: |
| 1214 | case CMD_AXI_CFG_OUT2: |
| 1215 | case CMD_AXI_CFG_SNAP_O1_AND_O2: |
| 1216 | case CMD_RAW_PICT_AXI_CFG: |
| 1217 | return msm_frame_axi_cfg(sync, &cfgcmd); |
| 1218 | |
| 1219 | case CMD_STATS_AXI_CFG: |
| 1220 | case CMD_STATS_AF_AXI_CFG: |
| 1221 | return msm_stats_axi_cfg(sync, &cfgcmd); |
| 1222 | |
| 1223 | default: |
| 1224 | pr_err("%s: unknown command type %d\n", |
| 1225 | __FUNCTION__, |
| 1226 | cfgcmd.cmd_type); |
| 1227 | return -EINVAL; |
| 1228 | } |
| 1229 | |
| 1230 | return 0; |
| 1231 | } |
| 1232 | |
| 1233 | static int __msm_get_pic(struct msm_sync *sync, struct msm_ctrl_cmd *ctrl) |
| 1234 | { |
| 1235 | unsigned long flags; |
| 1236 | int rc = 0; |
| 1237 | int tm; |
| 1238 | |
| 1239 | struct msm_queue_cmd *qcmd = NULL; |
| 1240 | |
| 1241 | tm = (int)ctrl->timeout_ms; |
| 1242 | |
| 1243 | rc = wait_event_interruptible_timeout( |
| 1244 | sync->pict_frame_wait, |
| 1245 | !list_empty_careful(&sync->pict_frame_q), |
| 1246 | msecs_to_jiffies(tm)); |
| 1247 | if (list_empty_careful(&sync->pict_frame_q)) { |
| 1248 | if (rc == 0) |
| 1249 | return -ETIMEDOUT; |
| 1250 | if (rc < 0) { |
| 1251 | pr_err("msm_camera_get_picture, rc = %d\n", rc); |
| 1252 | return rc; |
| 1253 | } |
| 1254 | } |
| 1255 | |
| 1256 | spin_lock_irqsave(&sync->pict_frame_q_lock, flags); |
| 1257 | BUG_ON(list_empty(&sync->pict_frame_q)); |
| 1258 | qcmd = list_first_entry(&sync->pict_frame_q, |
| 1259 | struct msm_queue_cmd, list); |
| 1260 | list_del_init(&qcmd->list); |
| 1261 | spin_unlock_irqrestore(&sync->pict_frame_q_lock, flags); |
| 1262 | |
| 1263 | if (qcmd->command != NULL) { |
| 1264 | struct msm_ctrl_cmd *q = |
| 1265 | (struct msm_ctrl_cmd *)qcmd->command; |
| 1266 | ctrl->type = q->type; |
| 1267 | ctrl->status = q->status; |
| 1268 | } else { |
| 1269 | ctrl->type = -1; |
| 1270 | ctrl->status = -1; |
| 1271 | } |
| 1272 | |
| 1273 | kfree(qcmd); |
| 1274 | return rc; |
| 1275 | } |
| 1276 | |
| 1277 | static int msm_get_pic(struct msm_sync *sync, void __user *arg) |
| 1278 | { |
| 1279 | struct msm_ctrl_cmd ctrlcmd_t; |
| 1280 | int rc; |
| 1281 | |
| 1282 | if (copy_from_user(&ctrlcmd_t, |
| 1283 | arg, |
| 1284 | sizeof(struct msm_ctrl_cmd))) { |
| 1285 | ERR_COPY_FROM_USER(); |
| 1286 | return -EFAULT; |
| 1287 | } |
| 1288 | |
| 1289 | rc = __msm_get_pic(sync, &ctrlcmd_t); |
| 1290 | if (rc < 0) |
| 1291 | return rc; |
| 1292 | |
| 1293 | if (sync->croplen) { |
| 1294 | if (ctrlcmd_t.length < sync->croplen) { |
| 1295 | pr_err("msm_get_pic: invalid len %d\n", |
| 1296 | ctrlcmd_t.length); |
| 1297 | return -EINVAL; |
| 1298 | } |
| 1299 | if (copy_to_user(ctrlcmd_t.value, |
| 1300 | sync->cropinfo, |
| 1301 | sync->croplen)) { |
| 1302 | ERR_COPY_TO_USER(); |
| 1303 | return -EFAULT; |
| 1304 | } |
| 1305 | } |
| 1306 | |
| 1307 | if (copy_to_user((void *)arg, |
| 1308 | &ctrlcmd_t, |
| 1309 | sizeof(struct msm_ctrl_cmd))) { |
| 1310 | ERR_COPY_TO_USER(); |
| 1311 | return -EFAULT; |
| 1312 | } |
| 1313 | return 0; |
| 1314 | } |
| 1315 | |
| 1316 | static int msm_set_crop(struct msm_sync *sync, void __user *arg) |
| 1317 | { |
| 1318 | struct crop_info crop; |
| 1319 | |
| 1320 | if (copy_from_user(&crop, |
| 1321 | arg, |
| 1322 | sizeof(struct crop_info))) { |
| 1323 | ERR_COPY_FROM_USER(); |
| 1324 | return -EFAULT; |
| 1325 | } |
| 1326 | |
| 1327 | if (!sync->croplen) { |
| 1328 | sync->cropinfo = kmalloc(crop.len, GFP_KERNEL); |
| 1329 | if (!sync->cropinfo) |
| 1330 | return -ENOMEM; |
| 1331 | } else if (sync->croplen < crop.len) |
| 1332 | return -EINVAL; |
| 1333 | |
| 1334 | if (copy_from_user(sync->cropinfo, |
| 1335 | crop.info, |
| 1336 | crop.len)) { |
| 1337 | ERR_COPY_FROM_USER(); |
| 1338 | kfree(sync->cropinfo); |
| 1339 | return -EFAULT; |
| 1340 | } |
| 1341 | |
| 1342 | sync->croplen = crop.len; |
| 1343 | |
| 1344 | return 0; |
| 1345 | } |
| 1346 | |
| 1347 | static int msm_pict_pp_done(struct msm_sync *sync, void __user *arg) |
| 1348 | { |
| 1349 | struct msm_ctrl_cmd udata; |
| 1350 | struct msm_ctrl_cmd *ctrlcmd = NULL; |
| 1351 | struct msm_queue_cmd *qcmd = NULL; |
| 1352 | unsigned long flags; |
| 1353 | int rc = 0; |
| 1354 | |
| 1355 | if (!sync->pict_pp) |
| 1356 | return -EINVAL; |
| 1357 | |
| 1358 | if (copy_from_user(&udata, arg, sizeof(struct msm_ctrl_cmd))) { |
| 1359 | ERR_COPY_FROM_USER(); |
| 1360 | rc = -EFAULT; |
| 1361 | goto pp_fail; |
| 1362 | } |
| 1363 | |
| 1364 | qcmd = kmalloc(sizeof(struct msm_queue_cmd) + |
| 1365 | sizeof(struct msm_ctrl_cmd), |
| 1366 | GFP_KERNEL); |
| 1367 | if (!qcmd) { |
| 1368 | rc = -ENOMEM; |
| 1369 | goto pp_fail; |
| 1370 | } |
| 1371 | |
| 1372 | qcmd->type = MSM_CAM_Q_VFE_MSG; |
| 1373 | qcmd->command = ctrlcmd = (struct msm_ctrl_cmd *)(qcmd + 1); |
| 1374 | memset(ctrlcmd, 0, sizeof(struct msm_ctrl_cmd)); |
| 1375 | ctrlcmd->type = udata.type; |
| 1376 | ctrlcmd->status = udata.status; |
| 1377 | |
| 1378 | spin_lock_irqsave(&sync->pict_frame_q_lock, flags); |
| 1379 | list_add_tail(&qcmd->list, &sync->pict_frame_q); |
| 1380 | spin_unlock_irqrestore(&sync->pict_frame_q_lock, flags); |
| 1381 | wake_up(&sync->pict_frame_wait); |
| 1382 | |
| 1383 | pp_fail: |
| 1384 | return rc; |
| 1385 | } |
| 1386 | |
| 1387 | static long msm_ioctl_common(struct msm_device *pmsm, |
| 1388 | unsigned int cmd, |
| 1389 | void __user *argp) |
| 1390 | { |
| 1391 | CDBG("msm_ioctl_common\n"); |
| 1392 | switch (cmd) { |
| 1393 | case MSM_CAM_IOCTL_REGISTER_PMEM: |
| 1394 | return msm_register_pmem(pmsm->sync, argp); |
| 1395 | case MSM_CAM_IOCTL_UNREGISTER_PMEM: |
| 1396 | return msm_pmem_table_del(pmsm->sync, argp); |
| 1397 | default: |
| 1398 | return -EINVAL; |
| 1399 | } |
| 1400 | } |
| 1401 | |
| 1402 | static long msm_ioctl_config(struct file *filep, unsigned int cmd, |
| 1403 | unsigned long arg) |
| 1404 | { |
| 1405 | int rc = -EINVAL; |
| 1406 | void __user *argp = (void __user *)arg; |
| 1407 | struct msm_device *pmsm = filep->private_data; |
| 1408 | |
| 1409 | CDBG("msm_ioctl_config cmd = %d\n", _IOC_NR(cmd)); |
| 1410 | |
| 1411 | switch (cmd) { |
| 1412 | case MSM_CAM_IOCTL_GET_SENSOR_INFO: |
| 1413 | rc = msm_get_sensor_info(pmsm->sync, argp); |
| 1414 | break; |
| 1415 | |
| 1416 | case MSM_CAM_IOCTL_CONFIG_VFE: |
| 1417 | /* Coming from config thread for update */ |
| 1418 | rc = msm_config_vfe(pmsm->sync, argp); |
| 1419 | break; |
| 1420 | |
| 1421 | case MSM_CAM_IOCTL_GET_STATS: |
| 1422 | /* Coming from config thread wait |
| 1423 | * for vfe statistics and control requests */ |
| 1424 | rc = msm_get_stats(pmsm->sync, argp); |
| 1425 | break; |
| 1426 | |
| 1427 | case MSM_CAM_IOCTL_ENABLE_VFE: |
| 1428 | /* This request comes from control thread: |
| 1429 | * enable either QCAMTASK or VFETASK */ |
| 1430 | rc = msm_enable_vfe(pmsm->sync, argp); |
| 1431 | break; |
| 1432 | |
| 1433 | case MSM_CAM_IOCTL_DISABLE_VFE: |
| 1434 | /* This request comes from control thread: |
| 1435 | * disable either QCAMTASK or VFETASK */ |
| 1436 | rc = msm_disable_vfe(pmsm->sync, argp); |
| 1437 | break; |
| 1438 | |
| 1439 | case MSM_CAM_IOCTL_VFE_APPS_RESET: |
| 1440 | msm_camio_vfe_blk_reset(); |
| 1441 | rc = 0; |
| 1442 | break; |
| 1443 | |
| 1444 | case MSM_CAM_IOCTL_RELEASE_STATS_BUFFER: |
| 1445 | rc = msm_put_stats_buffer(pmsm->sync, argp); |
| 1446 | break; |
| 1447 | |
| 1448 | case MSM_CAM_IOCTL_AXI_CONFIG: |
| 1449 | rc = msm_axi_config(pmsm->sync, argp); |
| 1450 | break; |
| 1451 | |
| 1452 | case MSM_CAM_IOCTL_SET_CROP: |
| 1453 | rc = msm_set_crop(pmsm->sync, argp); |
| 1454 | break; |
| 1455 | |
| 1456 | case MSM_CAM_IOCTL_PICT_PP: { |
| 1457 | uint8_t enable; |
| 1458 | if (copy_from_user(&enable, argp, sizeof(enable))) { |
| 1459 | ERR_COPY_FROM_USER(); |
| 1460 | rc = -EFAULT; |
| 1461 | } else { |
| 1462 | pmsm->sync->pict_pp = enable; |
| 1463 | rc = 0; |
| 1464 | } |
| 1465 | break; |
| 1466 | } |
| 1467 | |
| 1468 | case MSM_CAM_IOCTL_PICT_PP_DONE: |
| 1469 | rc = msm_pict_pp_done(pmsm->sync, argp); |
| 1470 | break; |
| 1471 | |
| 1472 | case MSM_CAM_IOCTL_SENSOR_IO_CFG: |
| 1473 | rc = pmsm->sync->sctrl.s_config(argp); |
| 1474 | break; |
| 1475 | |
| 1476 | case MSM_CAM_IOCTL_FLASH_LED_CFG: { |
| 1477 | uint32_t led_state; |
| 1478 | if (copy_from_user(&led_state, argp, sizeof(led_state))) { |
| 1479 | ERR_COPY_FROM_USER(); |
| 1480 | rc = -EFAULT; |
| 1481 | } else |
| 1482 | rc = msm_camera_flash_set_led_state(led_state); |
| 1483 | break; |
| 1484 | } |
| 1485 | |
| 1486 | default: |
| 1487 | rc = msm_ioctl_common(pmsm, cmd, argp); |
| 1488 | break; |
| 1489 | } |
| 1490 | |
| 1491 | CDBG("msm_ioctl_config cmd = %d DONE\n", _IOC_NR(cmd)); |
| 1492 | return rc; |
| 1493 | } |
| 1494 | |
| 1495 | static int msm_unblock_poll_frame(struct msm_sync *); |
| 1496 | |
| 1497 | static long msm_ioctl_frame(struct file *filep, unsigned int cmd, |
| 1498 | unsigned long arg) |
| 1499 | { |
| 1500 | int rc = -EINVAL; |
| 1501 | void __user *argp = (void __user *)arg; |
| 1502 | struct msm_device *pmsm = filep->private_data; |
| 1503 | |
| 1504 | |
| 1505 | switch (cmd) { |
| 1506 | case MSM_CAM_IOCTL_GETFRAME: |
| 1507 | /* Coming from frame thread to get frame |
| 1508 | * after SELECT is done */ |
| 1509 | rc = msm_get_frame(pmsm->sync, argp); |
| 1510 | break; |
| 1511 | case MSM_CAM_IOCTL_RELEASE_FRAME_BUFFER: |
| 1512 | rc = msm_put_frame_buffer(pmsm->sync, argp); |
| 1513 | break; |
| 1514 | case MSM_CAM_IOCTL_UNBLOCK_POLL_FRAME: |
| 1515 | rc = msm_unblock_poll_frame(pmsm->sync); |
| 1516 | break; |
| 1517 | default: |
| 1518 | break; |
| 1519 | } |
| 1520 | |
| 1521 | return rc; |
| 1522 | } |
| 1523 | |
| 1524 | |
| 1525 | static long msm_ioctl_control(struct file *filep, unsigned int cmd, |
| 1526 | unsigned long arg) |
| 1527 | { |
| 1528 | int rc = -EINVAL; |
| 1529 | void __user *argp = (void __user *)arg; |
| 1530 | struct msm_control_device *ctrl_pmsm = filep->private_data; |
| 1531 | struct msm_device *pmsm = ctrl_pmsm->pmsm; |
| 1532 | |
| 1533 | switch (cmd) { |
| 1534 | case MSM_CAM_IOCTL_CTRL_COMMAND: |
| 1535 | /* Coming from control thread, may need to wait for |
| 1536 | * command status */ |
| 1537 | rc = msm_control(ctrl_pmsm, 1, argp); |
| 1538 | break; |
| 1539 | case MSM_CAM_IOCTL_CTRL_COMMAND_2: |
| 1540 | /* Sends a message, returns immediately */ |
| 1541 | rc = msm_control(ctrl_pmsm, 0, argp); |
| 1542 | break; |
| 1543 | case MSM_CAM_IOCTL_CTRL_CMD_DONE: |
| 1544 | /* Config thread calls the control thread to notify it |
| 1545 | * of the result of a MSM_CAM_IOCTL_CTRL_COMMAND. |
| 1546 | */ |
| 1547 | rc = msm_ctrl_cmd_done(ctrl_pmsm, argp); |
| 1548 | break; |
| 1549 | case MSM_CAM_IOCTL_GET_PICTURE: |
| 1550 | rc = msm_get_pic(pmsm->sync, argp); |
| 1551 | break; |
| 1552 | default: |
| 1553 | rc = msm_ioctl_common(pmsm, cmd, argp); |
| 1554 | break; |
| 1555 | } |
| 1556 | |
| 1557 | return rc; |
| 1558 | } |
| 1559 | |
| 1560 | static int __msm_release(struct msm_sync *sync) |
| 1561 | { |
| 1562 | struct msm_pmem_region *region; |
| 1563 | struct hlist_node *hnode; |
| 1564 | struct hlist_node *n; |
| 1565 | |
| 1566 | mutex_lock(&sync->lock); |
| 1567 | if (sync->opencnt) |
| 1568 | sync->opencnt--; |
| 1569 | |
| 1570 | if (!sync->opencnt) { |
| 1571 | /* need to clean up system resource */ |
| 1572 | if (sync->vfefn.vfe_release) |
| 1573 | sync->vfefn.vfe_release(sync->pdev); |
| 1574 | |
| 1575 | if (sync->cropinfo) { |
| 1576 | kfree(sync->cropinfo); |
| 1577 | sync->cropinfo = NULL; |
| 1578 | sync->croplen = 0; |
| 1579 | } |
| 1580 | |
| 1581 | hlist_for_each_entry_safe(region, hnode, n, |
| 1582 | &sync->frame, list) { |
| 1583 | hlist_del(hnode); |
| 1584 | put_pmem_file(region->file); |
| 1585 | kfree(region); |
| 1586 | } |
| 1587 | |
| 1588 | hlist_for_each_entry_safe(region, hnode, n, |
| 1589 | &sync->stats, list) { |
| 1590 | hlist_del(hnode); |
| 1591 | put_pmem_file(region->file); |
| 1592 | kfree(region); |
| 1593 | } |
| 1594 | |
| 1595 | MSM_DRAIN_QUEUE(sync, msg_event_q); |
| 1596 | MSM_DRAIN_QUEUE(sync, prev_frame_q); |
| 1597 | MSM_DRAIN_QUEUE(sync, pict_frame_q); |
| 1598 | |
| 1599 | sync->sctrl.s_release(); |
| 1600 | wake_unlock(&sync->wake_lock); |
| 1601 | |
| 1602 | sync->apps_id = NULL; |
| 1603 | CDBG("msm_release completed!\n"); |
| 1604 | } |
| 1605 | mutex_unlock(&sync->lock); |
| 1606 | |
| 1607 | return 0; |
| 1608 | } |
| 1609 | |
| 1610 | static int msm_release_config(struct inode *node, struct file *filep) |
| 1611 | { |
| 1612 | int rc; |
| 1613 | struct msm_device *pmsm = filep->private_data; |
| 1614 | printk("msm_camera: RELEASE %s\n", filep->f_path.dentry->d_name.name); |
| 1615 | rc = __msm_release(pmsm->sync); |
| 1616 | atomic_set(&pmsm->opened, 0); |
| 1617 | return rc; |
| 1618 | } |
| 1619 | |
| 1620 | static int msm_release_control(struct inode *node, struct file *filep) |
| 1621 | { |
| 1622 | int rc; |
| 1623 | struct msm_control_device *ctrl_pmsm = filep->private_data; |
| 1624 | struct msm_device *pmsm = ctrl_pmsm->pmsm; |
| 1625 | printk("msm_camera: RELEASE %s\n", filep->f_path.dentry->d_name.name); |
| 1626 | rc = __msm_release(pmsm->sync); |
| 1627 | if (!rc) { |
| 1628 | MSM_DRAIN_QUEUE(&ctrl_pmsm->ctrl_q, ctrl_status_q); |
| 1629 | MSM_DRAIN_QUEUE(pmsm->sync, pict_frame_q); |
| 1630 | } |
| 1631 | kfree(ctrl_pmsm); |
| 1632 | return rc; |
| 1633 | } |
| 1634 | |
| 1635 | static int msm_release_frame(struct inode *node, struct file *filep) |
| 1636 | { |
| 1637 | int rc; |
| 1638 | struct msm_device *pmsm = filep->private_data; |
| 1639 | printk("msm_camera: RELEASE %s\n", filep->f_path.dentry->d_name.name); |
| 1640 | rc = __msm_release(pmsm->sync); |
| 1641 | if (!rc) { |
| 1642 | MSM_DRAIN_QUEUE(pmsm->sync, prev_frame_q); |
| 1643 | atomic_set(&pmsm->opened, 0); |
| 1644 | } |
| 1645 | return rc; |
| 1646 | } |
| 1647 | |
| 1648 | static int msm_unblock_poll_frame(struct msm_sync *sync) |
| 1649 | { |
| 1650 | unsigned long flags; |
| 1651 | CDBG("msm_unblock_poll_frame\n"); |
| 1652 | spin_lock_irqsave(&sync->prev_frame_q_lock, flags); |
| 1653 | sync->unblock_poll_frame = 1; |
| 1654 | wake_up(&sync->prev_frame_wait); |
| 1655 | spin_unlock_irqrestore(&sync->prev_frame_q_lock, flags); |
| 1656 | return 0; |
| 1657 | } |
| 1658 | |
| 1659 | static unsigned int __msm_poll_frame(struct msm_sync *sync, |
| 1660 | struct file *filep, |
| 1661 | struct poll_table_struct *pll_table) |
| 1662 | { |
| 1663 | int rc = 0; |
| 1664 | unsigned long flags; |
| 1665 | |
| 1666 | poll_wait(filep, &sync->prev_frame_wait, pll_table); |
| 1667 | |
| 1668 | spin_lock_irqsave(&sync->prev_frame_q_lock, flags); |
| 1669 | if (!list_empty_careful(&sync->prev_frame_q)) |
| 1670 | /* frame ready */ |
| 1671 | rc = POLLIN | POLLRDNORM; |
| 1672 | if (sync->unblock_poll_frame) { |
| 1673 | CDBG("%s: sync->unblock_poll_frame is true\n", __func__); |
| 1674 | rc |= POLLPRI; |
| 1675 | sync->unblock_poll_frame = 0; |
| 1676 | } |
| 1677 | spin_unlock_irqrestore(&sync->prev_frame_q_lock, flags); |
| 1678 | |
| 1679 | return rc; |
| 1680 | } |
| 1681 | |
| 1682 | static unsigned int msm_poll_frame(struct file *filep, |
| 1683 | struct poll_table_struct *pll_table) |
| 1684 | { |
| 1685 | struct msm_device *pmsm = filep->private_data; |
| 1686 | return __msm_poll_frame(pmsm->sync, filep, pll_table); |
| 1687 | } |
| 1688 | |
| 1689 | /* |
| 1690 | * This function executes in interrupt context. |
| 1691 | */ |
| 1692 | |
| 1693 | static void *msm_vfe_sync_alloc(int size, |
| 1694 | void *syncdata __attribute__((unused))) |
| 1695 | { |
| 1696 | struct msm_queue_cmd *qcmd = |
| 1697 | kmalloc(sizeof(struct msm_queue_cmd) + size, GFP_ATOMIC); |
| 1698 | return qcmd ? qcmd + 1 : NULL; |
| 1699 | } |
| 1700 | |
| 1701 | /* |
| 1702 | * This function executes in interrupt context. |
| 1703 | */ |
| 1704 | |
| 1705 | static void msm_vfe_sync(struct msm_vfe_resp *vdata, |
| 1706 | enum msm_queue qtype, void *syncdata) |
| 1707 | { |
| 1708 | struct msm_queue_cmd *qcmd = NULL; |
| 1709 | struct msm_queue_cmd *qcmd_frame = NULL; |
| 1710 | struct msm_vfe_phy_info *fphy; |
| 1711 | |
| 1712 | unsigned long flags; |
| 1713 | struct msm_sync *sync = (struct msm_sync *)syncdata; |
| 1714 | if (!sync) { |
| 1715 | pr_err("msm_camera: no context in dsp callback.\n"); |
| 1716 | return; |
| 1717 | } |
| 1718 | |
| 1719 | qcmd = ((struct msm_queue_cmd *)vdata) - 1; |
| 1720 | qcmd->type = qtype; |
| 1721 | |
| 1722 | if (qtype == MSM_CAM_Q_VFE_MSG) { |
| 1723 | switch(vdata->type) { |
| 1724 | case VFE_MSG_OUTPUT1: |
| 1725 | case VFE_MSG_OUTPUT2: |
| 1726 | qcmd_frame = |
| 1727 | kmalloc(sizeof(struct msm_queue_cmd) + |
| 1728 | sizeof(struct msm_vfe_phy_info), |
| 1729 | GFP_ATOMIC); |
| 1730 | if (!qcmd_frame) |
| 1731 | goto mem_fail; |
| 1732 | fphy = (struct msm_vfe_phy_info *)(qcmd_frame + 1); |
| 1733 | *fphy = vdata->phy; |
| 1734 | |
| 1735 | qcmd_frame->type = MSM_CAM_Q_VFE_MSG; |
| 1736 | qcmd_frame->command = fphy; |
| 1737 | |
| 1738 | CDBG("qcmd_frame= 0x%x phy_y= 0x%x, phy_cbcr= 0x%x\n", |
| 1739 | (int) qcmd_frame, fphy->y_phy, fphy->cbcr_phy); |
| 1740 | |
| 1741 | spin_lock_irqsave(&sync->prev_frame_q_lock, flags); |
| 1742 | list_add_tail(&qcmd_frame->list, &sync->prev_frame_q); |
| 1743 | wake_up(&sync->prev_frame_wait); |
| 1744 | spin_unlock_irqrestore(&sync->prev_frame_q_lock, flags); |
| 1745 | CDBG("woke up frame thread\n"); |
| 1746 | break; |
| 1747 | case VFE_MSG_SNAPSHOT: |
| 1748 | if (sync->pict_pp) |
| 1749 | break; |
| 1750 | |
| 1751 | CDBG("snapshot pp = %d\n", sync->pict_pp); |
| 1752 | qcmd_frame = |
| 1753 | kmalloc(sizeof(struct msm_queue_cmd), |
| 1754 | GFP_ATOMIC); |
| 1755 | if (!qcmd_frame) |
| 1756 | goto mem_fail; |
| 1757 | qcmd_frame->type = MSM_CAM_Q_VFE_MSG; |
| 1758 | qcmd_frame->command = NULL; |
| 1759 | spin_lock_irqsave(&sync->pict_frame_q_lock, |
| 1760 | flags); |
| 1761 | list_add_tail(&qcmd_frame->list, &sync->pict_frame_q); |
| 1762 | wake_up(&sync->pict_frame_wait); |
| 1763 | spin_unlock_irqrestore(&sync->pict_frame_q_lock, flags); |
| 1764 | CDBG("woke up picture thread\n"); |
| 1765 | break; |
| 1766 | default: |
| 1767 | CDBG("%s: qtype = %d not handled\n", |
| 1768 | __func__, vdata->type); |
| 1769 | break; |
| 1770 | } |
| 1771 | } |
| 1772 | |
| 1773 | qcmd->command = (void *)vdata; |
| 1774 | CDBG("vdata->type = %d\n", vdata->type); |
| 1775 | |
| 1776 | spin_lock_irqsave(&sync->msg_event_q_lock, flags); |
| 1777 | list_add_tail(&qcmd->list, &sync->msg_event_q); |
| 1778 | wake_up(&sync->msg_event_wait); |
| 1779 | spin_unlock_irqrestore(&sync->msg_event_q_lock, flags); |
| 1780 | CDBG("woke up config thread\n"); |
| 1781 | return; |
| 1782 | |
| 1783 | mem_fail: |
| 1784 | kfree(qcmd); |
| 1785 | } |
| 1786 | |
| 1787 | static struct msm_vfe_callback msm_vfe_s = { |
| 1788 | .vfe_resp = msm_vfe_sync, |
| 1789 | .vfe_alloc = msm_vfe_sync_alloc, |
| 1790 | }; |
| 1791 | |
| 1792 | static int __msm_open(struct msm_sync *sync, const char *const apps_id) |
| 1793 | { |
| 1794 | int rc = 0; |
| 1795 | |
| 1796 | mutex_lock(&sync->lock); |
| 1797 | if (sync->apps_id && strcmp(sync->apps_id, apps_id)) { |
| 1798 | pr_err("msm_camera(%s): sensor %s is already opened for %s\n", |
| 1799 | apps_id, |
| 1800 | sync->sdata->sensor_name, |
| 1801 | sync->apps_id); |
| 1802 | rc = -EBUSY; |
| 1803 | goto msm_open_done; |
| 1804 | } |
| 1805 | |
| 1806 | sync->apps_id = apps_id; |
| 1807 | |
| 1808 | if (!sync->opencnt) { |
| 1809 | wake_lock(&sync->wake_lock); |
| 1810 | |
| 1811 | msm_camvfe_fn_init(&sync->vfefn, sync); |
| 1812 | if (sync->vfefn.vfe_init) { |
| 1813 | rc = sync->vfefn.vfe_init(&msm_vfe_s, |
| 1814 | sync->pdev); |
| 1815 | if (rc < 0) { |
| 1816 | pr_err("vfe_init failed at %d\n", rc); |
| 1817 | goto msm_open_done; |
| 1818 | } |
| 1819 | rc = sync->sctrl.s_init(sync->sdata); |
| 1820 | if (rc < 0) { |
| 1821 | pr_err("sensor init failed: %d\n", rc); |
| 1822 | goto msm_open_done; |
| 1823 | } |
| 1824 | } else { |
| 1825 | pr_err("no sensor init func\n"); |
| 1826 | rc = -ENODEV; |
| 1827 | goto msm_open_done; |
| 1828 | } |
| 1829 | |
| 1830 | if (rc >= 0) { |
| 1831 | INIT_HLIST_HEAD(&sync->frame); |
| 1832 | INIT_HLIST_HEAD(&sync->stats); |
| 1833 | sync->unblock_poll_frame = 0; |
| 1834 | } |
| 1835 | } |
| 1836 | sync->opencnt++; |
| 1837 | |
| 1838 | msm_open_done: |
| 1839 | mutex_unlock(&sync->lock); |
| 1840 | return rc; |
| 1841 | } |
| 1842 | |
| 1843 | static int msm_open_common(struct inode *inode, struct file *filep, |
| 1844 | int once) |
| 1845 | { |
| 1846 | int rc; |
| 1847 | struct msm_device *pmsm = |
| 1848 | container_of(inode->i_cdev, struct msm_device, cdev); |
| 1849 | |
| 1850 | CDBG("msm_camera: open %s\n", filep->f_path.dentry->d_name.name); |
| 1851 | |
| 1852 | if (atomic_cmpxchg(&pmsm->opened, 0, 1) && once) { |
| 1853 | pr_err("msm_camera: %s is already opened.\n", |
| 1854 | filep->f_path.dentry->d_name.name); |
| 1855 | return -EBUSY; |
| 1856 | } |
| 1857 | |
| 1858 | rc = nonseekable_open(inode, filep); |
| 1859 | if (rc < 0) { |
| 1860 | pr_err("msm_open: nonseekable_open error %d\n", rc); |
| 1861 | return rc; |
| 1862 | } |
| 1863 | |
| 1864 | rc = __msm_open(pmsm->sync, MSM_APPS_ID_PROP); |
| 1865 | if (rc < 0) |
| 1866 | return rc; |
| 1867 | |
| 1868 | filep->private_data = pmsm; |
| 1869 | |
| 1870 | CDBG("msm_open() open: rc = %d\n", rc); |
| 1871 | return rc; |
| 1872 | } |
| 1873 | |
| 1874 | static int msm_open(struct inode *inode, struct file *filep) |
| 1875 | { |
| 1876 | return msm_open_common(inode, filep, 1); |
| 1877 | } |
| 1878 | |
| 1879 | static int msm_open_control(struct inode *inode, struct file *filep) |
| 1880 | { |
| 1881 | int rc; |
| 1882 | |
| 1883 | struct msm_control_device *ctrl_pmsm = |
| 1884 | kmalloc(sizeof(struct msm_control_device), GFP_KERNEL); |
| 1885 | if (!ctrl_pmsm) |
| 1886 | return -ENOMEM; |
| 1887 | |
| 1888 | rc = msm_open_common(inode, filep, 0); |
| 1889 | if (rc < 0) |
| 1890 | return rc; |
| 1891 | |
| 1892 | ctrl_pmsm->pmsm = filep->private_data; |
| 1893 | filep->private_data = ctrl_pmsm; |
| 1894 | spin_lock_init(&ctrl_pmsm->ctrl_q.ctrl_status_q_lock); |
| 1895 | INIT_LIST_HEAD(&ctrl_pmsm->ctrl_q.ctrl_status_q); |
| 1896 | init_waitqueue_head(&ctrl_pmsm->ctrl_q.ctrl_status_wait); |
| 1897 | |
| 1898 | CDBG("msm_open() open: rc = %d\n", rc); |
| 1899 | return rc; |
| 1900 | } |
| 1901 | |
| 1902 | static int __msm_v4l2_control(struct msm_sync *sync, |
| 1903 | struct msm_ctrl_cmd *out) |
| 1904 | { |
| 1905 | int rc = 0; |
| 1906 | |
| 1907 | struct msm_queue_cmd *qcmd = NULL, *rcmd = NULL; |
| 1908 | struct msm_ctrl_cmd *ctrl; |
| 1909 | struct msm_control_device_queue FIXME; |
| 1910 | |
| 1911 | /* wake up config thread, 4 is for V4L2 application */ |
| 1912 | qcmd = kmalloc(sizeof(struct msm_queue_cmd), GFP_KERNEL); |
| 1913 | if (!qcmd) { |
| 1914 | pr_err("msm_control: cannot allocate buffer\n"); |
| 1915 | rc = -ENOMEM; |
| 1916 | goto end; |
| 1917 | } |
| 1918 | qcmd->type = MSM_CAM_Q_V4L2_REQ; |
| 1919 | qcmd->command = out; |
| 1920 | |
| 1921 | rcmd = __msm_control(sync, &FIXME, qcmd, out->timeout_ms); |
| 1922 | if (IS_ERR(rcmd)) { |
| 1923 | rc = PTR_ERR(rcmd); |
| 1924 | goto end; |
| 1925 | } |
| 1926 | |
| 1927 | ctrl = (struct msm_ctrl_cmd *)(rcmd->command); |
| 1928 | /* FIXME: we should just set out->length = ctrl->length; */ |
| 1929 | BUG_ON(out->length < ctrl->length); |
| 1930 | memcpy(out->value, ctrl->value, ctrl->length); |
| 1931 | |
| 1932 | end: |
| 1933 | if (rcmd) kfree(rcmd); |
| 1934 | CDBG("__msm_v4l2_control: end rc = %d\n", rc); |
| 1935 | return rc; |
| 1936 | } |
| 1937 | |
| 1938 | static const struct file_operations msm_fops_config = { |
| 1939 | .owner = THIS_MODULE, |
| 1940 | .open = msm_open, |
| 1941 | .unlocked_ioctl = msm_ioctl_config, |
| 1942 | .release = msm_release_config, |
| 1943 | }; |
| 1944 | |
| 1945 | static const struct file_operations msm_fops_control = { |
| 1946 | .owner = THIS_MODULE, |
| 1947 | .open = msm_open_control, |
| 1948 | .unlocked_ioctl = msm_ioctl_control, |
| 1949 | .release = msm_release_control, |
| 1950 | }; |
| 1951 | |
| 1952 | static const struct file_operations msm_fops_frame = { |
| 1953 | .owner = THIS_MODULE, |
| 1954 | .open = msm_open, |
| 1955 | .unlocked_ioctl = msm_ioctl_frame, |
| 1956 | .release = msm_release_frame, |
| 1957 | .poll = msm_poll_frame, |
| 1958 | }; |
| 1959 | |
| 1960 | static int msm_setup_cdev(struct msm_device *msm, |
| 1961 | int node, |
| 1962 | dev_t devno, |
| 1963 | const char *suffix, |
| 1964 | const struct file_operations *fops) |
| 1965 | { |
| 1966 | int rc = -ENODEV; |
| 1967 | |
| 1968 | struct device *device = |
| 1969 | device_create(msm_class, NULL, |
| 1970 | devno, NULL, |
| 1971 | "%s%d", suffix, node); |
| 1972 | |
| 1973 | if (IS_ERR(device)) { |
| 1974 | rc = PTR_ERR(device); |
| 1975 | pr_err("msm_camera: error creating device: %d\n", rc); |
| 1976 | return rc; |
| 1977 | } |
| 1978 | |
| 1979 | cdev_init(&msm->cdev, fops); |
| 1980 | msm->cdev.owner = THIS_MODULE; |
| 1981 | |
| 1982 | rc = cdev_add(&msm->cdev, devno, 1); |
| 1983 | if (rc < 0) { |
| 1984 | pr_err("msm_camera: error adding cdev: %d\n", rc); |
| 1985 | device_destroy(msm_class, devno); |
| 1986 | return rc; |
| 1987 | } |
| 1988 | |
| 1989 | return rc; |
| 1990 | } |
| 1991 | |
| 1992 | static int msm_tear_down_cdev(struct msm_device *msm, dev_t devno) |
| 1993 | { |
| 1994 | cdev_del(&msm->cdev); |
| 1995 | device_destroy(msm_class, devno); |
| 1996 | return 0; |
| 1997 | } |
| 1998 | |
| 1999 | int msm_v4l2_register(struct msm_v4l2_driver *drv) |
| 2000 | { |
| 2001 | /* FIXME: support multiple sensors */ |
| 2002 | if (list_empty(&msm_sensors)) |
| 2003 | return -ENODEV; |
| 2004 | |
| 2005 | drv->sync = list_first_entry(&msm_sensors, struct msm_sync, list); |
| 2006 | drv->open = __msm_open; |
| 2007 | drv->release = __msm_release; |
| 2008 | drv->ctrl = __msm_v4l2_control; |
| 2009 | drv->reg_pmem = __msm_register_pmem; |
| 2010 | drv->get_frame = __msm_get_frame; |
| 2011 | drv->put_frame = __msm_put_frame_buf; |
| 2012 | drv->get_pict = __msm_get_pic; |
| 2013 | drv->drv_poll = __msm_poll_frame; |
| 2014 | |
| 2015 | return 0; |
| 2016 | } |
| 2017 | EXPORT_SYMBOL(msm_v4l2_register); |
| 2018 | |
| 2019 | int msm_v4l2_unregister(struct msm_v4l2_driver *drv) |
| 2020 | { |
| 2021 | drv->sync = NULL; |
| 2022 | return 0; |
| 2023 | } |
| 2024 | EXPORT_SYMBOL(msm_v4l2_unregister); |
| 2025 | |
| 2026 | static int msm_sync_init(struct msm_sync *sync, |
| 2027 | struct platform_device *pdev, |
| 2028 | int (*sensor_probe)(const struct msm_camera_sensor_info *, |
| 2029 | struct msm_sensor_ctrl *)) |
| 2030 | { |
| 2031 | int rc = 0; |
| 2032 | struct msm_sensor_ctrl sctrl; |
| 2033 | sync->sdata = pdev->dev.platform_data; |
| 2034 | |
| 2035 | spin_lock_init(&sync->msg_event_q_lock); |
| 2036 | INIT_LIST_HEAD(&sync->msg_event_q); |
| 2037 | init_waitqueue_head(&sync->msg_event_wait); |
| 2038 | |
| 2039 | spin_lock_init(&sync->prev_frame_q_lock); |
| 2040 | INIT_LIST_HEAD(&sync->prev_frame_q); |
| 2041 | init_waitqueue_head(&sync->prev_frame_wait); |
| 2042 | |
| 2043 | spin_lock_init(&sync->pict_frame_q_lock); |
| 2044 | INIT_LIST_HEAD(&sync->pict_frame_q); |
| 2045 | init_waitqueue_head(&sync->pict_frame_wait); |
| 2046 | |
| 2047 | wake_lock_init(&sync->wake_lock, WAKE_LOCK_IDLE, "msm_camera"); |
| 2048 | |
| 2049 | rc = msm_camio_probe_on(pdev); |
| 2050 | if (rc < 0) |
| 2051 | return rc; |
| 2052 | rc = sensor_probe(sync->sdata, &sctrl); |
| 2053 | if (rc >= 0) { |
| 2054 | sync->pdev = pdev; |
| 2055 | sync->sctrl = sctrl; |
| 2056 | } |
| 2057 | msm_camio_probe_off(pdev); |
| 2058 | if (rc < 0) { |
| 2059 | pr_err("msm_camera: failed to initialize %s\n", |
| 2060 | sync->sdata->sensor_name); |
| 2061 | wake_lock_destroy(&sync->wake_lock); |
| 2062 | return rc; |
| 2063 | } |
| 2064 | |
| 2065 | sync->opencnt = 0; |
| 2066 | mutex_init(&sync->lock); |
| 2067 | CDBG("initialized %s\n", sync->sdata->sensor_name); |
| 2068 | return rc; |
| 2069 | } |
| 2070 | |
| 2071 | static int msm_sync_destroy(struct msm_sync *sync) |
| 2072 | { |
| 2073 | wake_lock_destroy(&sync->wake_lock); |
| 2074 | return 0; |
| 2075 | } |
| 2076 | |
| 2077 | static int msm_device_init(struct msm_device *pmsm, |
| 2078 | struct msm_sync *sync, |
| 2079 | int node) |
| 2080 | { |
| 2081 | int dev_num = 3 * node; |
| 2082 | int rc = msm_setup_cdev(pmsm, node, |
| 2083 | MKDEV(MAJOR(msm_devno), dev_num), |
| 2084 | "control", &msm_fops_control); |
| 2085 | if (rc < 0) { |
| 2086 | pr_err("error creating control node: %d\n", rc); |
| 2087 | return rc; |
| 2088 | } |
| 2089 | |
| 2090 | rc = msm_setup_cdev(pmsm + 1, node, |
| 2091 | MKDEV(MAJOR(msm_devno), dev_num + 1), |
| 2092 | "config", &msm_fops_config); |
| 2093 | if (rc < 0) { |
| 2094 | pr_err("error creating config node: %d\n", rc); |
| 2095 | msm_tear_down_cdev(pmsm, MKDEV(MAJOR(msm_devno), |
| 2096 | dev_num)); |
| 2097 | return rc; |
| 2098 | } |
| 2099 | |
| 2100 | rc = msm_setup_cdev(pmsm + 2, node, |
| 2101 | MKDEV(MAJOR(msm_devno), dev_num + 2), |
| 2102 | "frame", &msm_fops_frame); |
| 2103 | if (rc < 0) { |
| 2104 | pr_err("error creating frame node: %d\n", rc); |
| 2105 | msm_tear_down_cdev(pmsm, |
| 2106 | MKDEV(MAJOR(msm_devno), dev_num)); |
| 2107 | msm_tear_down_cdev(pmsm + 1, |
| 2108 | MKDEV(MAJOR(msm_devno), dev_num + 1)); |
| 2109 | return rc; |
| 2110 | } |
| 2111 | |
| 2112 | atomic_set(&pmsm[0].opened, 0); |
| 2113 | atomic_set(&pmsm[1].opened, 0); |
| 2114 | atomic_set(&pmsm[2].opened, 0); |
| 2115 | |
| 2116 | pmsm[0].sync = sync; |
| 2117 | pmsm[1].sync = sync; |
| 2118 | pmsm[2].sync = sync; |
| 2119 | |
| 2120 | return rc; |
| 2121 | } |
| 2122 | |
| 2123 | int msm_camera_drv_start(struct platform_device *dev, |
| 2124 | int (*sensor_probe)(const struct msm_camera_sensor_info *, |
| 2125 | struct msm_sensor_ctrl *)) |
| 2126 | { |
| 2127 | struct msm_device *pmsm = NULL; |
| 2128 | struct msm_sync *sync; |
| 2129 | int rc = -ENODEV; |
| 2130 | static int camera_node; |
| 2131 | |
| 2132 | if (camera_node >= MSM_MAX_CAMERA_SENSORS) { |
| 2133 | pr_err("msm_camera: too many camera sensors\n"); |
| 2134 | return rc; |
| 2135 | } |
| 2136 | |
| 2137 | if (!msm_class) { |
| 2138 | /* There are three device nodes per sensor */ |
| 2139 | rc = alloc_chrdev_region(&msm_devno, 0, |
| 2140 | 3 * MSM_MAX_CAMERA_SENSORS, |
| 2141 | "msm_camera"); |
| 2142 | if (rc < 0) { |
| 2143 | pr_err("msm_camera: failed to allocate chrdev: %d\n", |
| 2144 | rc); |
| 2145 | return rc; |
| 2146 | } |
| 2147 | |
| 2148 | msm_class = class_create(THIS_MODULE, "msm_camera"); |
| 2149 | if (IS_ERR(msm_class)) { |
| 2150 | rc = PTR_ERR(msm_class); |
| 2151 | pr_err("msm_camera: create device class failed: %d\n", |
| 2152 | rc); |
| 2153 | return rc; |
| 2154 | } |
| 2155 | } |
| 2156 | |
| 2157 | pmsm = kzalloc(sizeof(struct msm_device) * 3 + |
| 2158 | sizeof(struct msm_sync), GFP_ATOMIC); |
| 2159 | if (!pmsm) |
| 2160 | return -ENOMEM; |
| 2161 | sync = (struct msm_sync *)(pmsm + 3); |
| 2162 | |
| 2163 | rc = msm_sync_init(sync, dev, sensor_probe); |
| 2164 | if (rc < 0) { |
| 2165 | kfree(pmsm); |
| 2166 | return rc; |
| 2167 | } |
| 2168 | |
| 2169 | CDBG("setting camera node %d\n", camera_node); |
| 2170 | rc = msm_device_init(pmsm, sync, camera_node); |
| 2171 | if (rc < 0) { |
| 2172 | msm_sync_destroy(sync); |
| 2173 | kfree(pmsm); |
| 2174 | return rc; |
| 2175 | } |
| 2176 | |
| 2177 | camera_node++; |
| 2178 | list_add(&sync->list, &msm_sensors); |
| 2179 | return rc; |
| 2180 | } |
| 2181 | EXPORT_SYMBOL(msm_camera_drv_start); |