2 * Copyright (C) 2008-2009 QUALCOMM Incorporated.
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 */
13 #include <linux/kernel.h>
14 #include <linux/module.h>
15 #include <linux/init.h>
16 #include <mach/board.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>
26 #define MSM_MAX_CAMERA_SENSORS 5
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)
33 static struct class *msm_class;
34 static dev_t msm_devno;
35 static LIST_HEAD(msm_sensors);
37 #define __CONTAINS(r, v, l, field) ({ \
40 typeof(v) __e = __v + l; \
41 int res = __v >= __r->field && \
42 __e <= __r->field + __r->len; \
46 #define CONTAINS(r1, r2, field) ({ \
47 typeof(r2) __r2 = r2; \
48 __CONTAINS(r1, __r2->field, __r2->len, field); \
51 #define IN_RANGE(r, v, field) ({ \
54 int res = ((__vv >= __r->field) && \
55 (__vv < (__r->field + __r->len))); \
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)); \
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); \
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); \
87 static int check_overlap(struct hlist_head *ptype,
91 struct msm_pmem_region *region;
92 struct msm_pmem_region t = { .paddr = paddr, .len = len };
93 struct hlist_node *node;
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)) {
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);
112 static int msm_pmem_table_add(struct hlist_head *ptype,
113 struct msm_pmem_info *info)
117 unsigned long vstart;
120 struct msm_pmem_region *region;
122 rc = get_pmem_file(info->fd, &paddr, &vstart, &len, &file);
124 pr_err("msm_pmem_table_add: get_pmem_file fd %d error %d\n",
129 if (check_overlap(ptype, paddr, len) < 0)
132 CDBG("%s: type = %d, paddr = 0x%lx, vaddr = 0x%lx\n",
134 info->type, paddr, (unsigned long)info->vaddr);
136 region = kmalloc(sizeof(*region), GFP_KERNEL);
140 INIT_HLIST_NODE(®ion->list);
142 region->type = info->type;
143 region->vaddr = info->vaddr;
144 region->paddr = paddr;
147 region->y_off = info->y_off;
148 region->cbcr_off = info->cbcr_off;
149 region->fd = info->fd;
150 region->active = info->active;
152 hlist_add_head(&(region->list), ptype);
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)
161 struct msm_pmem_region *region;
162 struct msm_pmem_region *regptr;
163 struct hlist_node *node, *n;
169 hlist_for_each_entry_safe(region, node, n, ptype, list) {
170 if (region->type == pmem_type && region->active) {
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)
187 struct msm_pmem_region *region;
188 struct hlist_node *node, *n;
190 hlist_for_each_entry_safe(region, node, n, &sync->frame, list) {
191 if (pyaddr == (region->paddr + region->y_off) &&
192 pcbcraddr == (region->paddr +
195 /* offset since we could pass vaddr inside
196 * a registerd pmem buffer
198 *yoff = region->y_off;
199 *cbcroff = region->cbcr_off;
202 return (unsigned long)(region->vaddr);
209 static unsigned long msm_pmem_stats_ptov_lookup(struct msm_sync *sync,
210 unsigned long addr, int *fd)
212 struct msm_pmem_region *region;
213 struct hlist_node *node, *n;
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 */
221 return (unsigned long)(region->vaddr);
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)
232 struct msm_pmem_region *region;
233 struct hlist_node *node, *n;
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)) {
244 return region->paddr;
251 static unsigned long msm_pmem_stats_vtop_lookup(
252 struct msm_sync *sync,
253 unsigned long buffer,
256 struct msm_pmem_region *region;
257 struct hlist_node *node, *n;
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) {
263 return region->paddr;
270 static int __msm_pmem_table_del(struct msm_sync *sync,
271 struct msm_pmem_info *pinfo)
274 struct msm_pmem_region *region;
275 struct hlist_node *node, *n;
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) {
286 if (pinfo->type == region->type &&
287 pinfo->vaddr == region->vaddr &&
288 pinfo->fd == region->fd) {
290 put_pmem_file(region->file);
296 case MSM_PMEM_AEC_AWB:
298 hlist_for_each_entry_safe(region, node, n,
299 &sync->stats, list) {
301 if (pinfo->type == region->type &&
302 pinfo->vaddr == region->vaddr &&
303 pinfo->fd == region->fd) {
305 put_pmem_file(region->file);
319 static int msm_pmem_table_del(struct msm_sync *sync, void __user *arg)
321 struct msm_pmem_info info;
323 if (copy_from_user(&info, arg, sizeof(info))) {
324 ERR_COPY_FROM_USER();
328 return __msm_pmem_table_del(sync, &info);
331 static int __msm_get_frame(struct msm_sync *sync,
332 struct msm_frame *frame)
337 struct msm_queue_cmd *qcmd = NULL;
338 struct msm_vfe_phy_info *pphy;
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);
346 spin_unlock_irqrestore(&sync->prev_frame_q_lock, flags);
349 pr_err("%s: no preview frame.\n", __func__);
353 pphy = (struct msm_vfe_phy_info *)(qcmd->command);
356 msm_pmem_frame_ptov_lookup(sync,
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",
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);
377 static int msm_get_frame(struct msm_sync *sync, void __user *arg)
380 struct msm_frame frame;
382 if (copy_from_user(&frame,
384 sizeof(struct msm_frame))) {
385 ERR_COPY_FROM_USER();
389 rc = __msm_get_frame(sync, &frame);
394 if (frame.croplen > sync->croplen) {
395 pr_err("msm_get_frame: invalid frame croplen %d\n",
400 if (copy_to_user((void *)frame.cropinfo,
408 if (copy_to_user((void *)arg,
409 &frame, sizeof(struct msm_frame))) {
414 CDBG("Got frame!!!\n");
419 static int msm_enable_vfe(struct msm_sync *sync, void __user *arg)
422 struct camera_enable_cmd cfg;
424 if (copy_from_user(&cfg,
426 sizeof(struct camera_enable_cmd))) {
427 ERR_COPY_FROM_USER();
431 if (sync->vfefn.vfe_enable)
432 rc = sync->vfefn.vfe_enable(&cfg);
434 CDBG("msm_enable_vfe: returned rc = %d\n", rc);
438 static int msm_disable_vfe(struct msm_sync *sync, void __user *arg)
441 struct camera_enable_cmd cfg;
443 if (copy_from_user(&cfg,
445 sizeof(struct camera_enable_cmd))) {
446 ERR_COPY_FROM_USER();
450 if (sync->vfefn.vfe_disable)
451 rc = sync->vfefn.vfe_disable(&cfg, NULL);
453 CDBG("msm_disable_vfe: returned rc = %d\n", rc);
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,
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);
474 /* wait for config status */
475 rc = wait_event_interruptible_timeout(
476 queue->ctrl_status_wait,
477 !list_empty_careful(&queue->ctrl_status_q),
479 if (list_empty_careful(&queue->ctrl_status_q)) {
483 pr_err("msm_control: wait_event error %d\n", rc);
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.
490 pr_err("%s: error waiting for ctrl_status_q: %d\n",
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);
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);
511 static int msm_control(struct msm_control_device *ctrl_pmsm,
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;
521 if (copy_from_user(&udata, arg, sizeof(struct msm_ctrl_cmd))) {
522 ERR_COPY_FROM_USER();
527 qcmd = kmalloc(sizeof(struct msm_queue_cmd) +
528 sizeof(struct msm_ctrl_cmd) + udata.length,
531 pr_err("msm_control: cannot allocate buffer\n");
536 qcmd->type = MSM_CAM_Q_CTRL;
537 qcmd->command = ctrlcmd = (struct msm_ctrl_cmd *)(qcmd + 1);
539 ctrlcmd->value = ctrlcmd + 1;
542 if (copy_from_user(ctrlcmd->value,
543 udata.value, udata.length)) {
544 ERR_COPY_FROM_USER();
551 /* qcmd will be set to NULL */
552 qcmd = __msm_control(sync, NULL, qcmd, 0);
556 qcmd_temp = __msm_control(sync,
558 qcmd, MAX_SCHEDULE_TIMEOUT);
560 if (IS_ERR(qcmd_temp)) {
561 rc = PTR_ERR(qcmd_temp);
567 void __user *to = udata.value;
568 udata = *(struct msm_ctrl_cmd *)qcmd->command;
569 if (udata.length > 0) {
580 if (copy_to_user((void *)arg, &udata,
581 sizeof(struct msm_ctrl_cmd))) {
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.
597 CDBG("msm_control: end rc = %d\n", rc);
601 static int msm_get_stats(struct msm_sync *sync, void __user *arg)
607 struct msm_stats_event_ctrl se;
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;
614 if (copy_from_user(&se, arg,
615 sizeof(struct msm_stats_event_ctrl))) {
616 ERR_COPY_FROM_USER();
620 timeout = (int)se.timeout_ms;
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)) {
631 pr_err("msm_get_stats error %d\n", rc);
635 CDBG("msm_get_stats returned from wait: %d\n", rc);
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);
644 CDBG("=== received from DSP === %d\n", qcmd->type);
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);
651 /* adsp event and message */
652 se.resptype = MSM_CAM_RESP_STAT_EVT_MSG;
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;
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);
663 if ((data->type == VFE_MSG_STATS_AF) ||
664 (data->type == VFE_MSG_STATS_WE)) {
667 msm_pmem_stats_ptov_lookup(sync,
671 pr_err("%s: msm_pmem_stats_ptov_lookup error\n",
677 if (copy_to_user((void *)(se.stats_event.data),
679 sizeof(struct msm_stats_buf))) {
684 } else if ((data->evt_msg.len > 0) &&
685 (data->type == VFE_MSG_GENERAL)) {
686 if (copy_to_user((void *)(se.stats_event.data),
688 data->evt_msg.len)) {
692 } else if (data->type == VFE_MSG_OUTPUT1 ||
693 data->type == VFE_MSG_OUTPUT2) {
694 if (copy_to_user((void *)(se.stats_event.data),
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,
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;
712 buf.fmnum = msm_pmem_region_lookup(&sync->frame,
713 MSM_PMEM_RAW_MAINIMG,
715 if (buf.fmnum == 1) {
716 buf.fmain.path = MSM_FRAME_PREV_2;
718 (unsigned long)region.vaddr;
719 buf.fmain.fd = region.fd;
722 pr_err("%s: pmem lookup failed\n",
728 if (copy_to_user((void *)(se.stats_event.data), &buf,
734 CDBG("snapshot copy_to_user!\n");
739 /* control command from control thread */
740 ctrl = (struct msm_ctrl_cmd *)(qcmd->command);
742 CDBG("msm_get_stats, qcmd->type = %d\n", qcmd->type);
743 CDBG("length = %d\n", ctrl->length);
745 if (ctrl->length > 0) {
746 if (copy_to_user((void *)(se.ctrl_cmd.value),
755 se.resptype = MSM_CAM_RESP_CTRL;
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;
763 case MSM_CAM_Q_V4L2_REQ:
764 /* control command from v4l2 client */
765 ctrl = (struct msm_ctrl_cmd *)(qcmd->command);
767 CDBG("msm_get_stats, qcmd->type = %d\n", qcmd->type);
768 CDBG("length = %d\n", ctrl->length);
770 if (ctrl->length > 0) {
771 if (copy_to_user((void *)(se.ctrl_cmd.value),
772 ctrl->value, ctrl->length)) {
779 /* 2 tells config thread this is v4l2 request */
780 se.resptype = MSM_CAM_RESP_V4L2;
782 /* what to control */
783 se.ctrl_cmd.type = ctrl->type;
784 se.ctrl_cmd.length = ctrl->length;
790 } /* switch qcmd->type */
792 if (copy_to_user((void *)arg, &se, sizeof(se))) {
801 CDBG("msm_get_stats: %d\n", rc);
805 static int msm_ctrl_cmd_done(struct msm_control_device *ctrl_pmsm,
811 struct msm_ctrl_cmd udata, *ctrlcmd;
812 struct msm_queue_cmd *qcmd = NULL;
814 if (copy_from_user(&udata, arg, sizeof(struct msm_ctrl_cmd))) {
815 ERR_COPY_FROM_USER();
820 qcmd = kmalloc(sizeof(struct msm_queue_cmd) +
821 sizeof(struct msm_ctrl_cmd) + udata.length,
828 qcmd->command = ctrlcmd = (struct msm_ctrl_cmd *)(qcmd + 1);
830 if (udata.length > 0) {
831 ctrlcmd->value = ctrlcmd + 1;
832 if (copy_from_user(ctrlcmd->value,
835 ERR_COPY_FROM_USER();
841 else ctrlcmd->value = NULL;
844 CDBG("msm_ctrl_cmd_done: end rc = %d\n", rc);
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);
856 static int msm_config_vfe(struct msm_sync *sync, void __user *arg)
858 struct msm_vfe_cfg_cmd cfgcmd;
859 struct msm_pmem_region region[8];
860 struct axidata axi_data;
864 memset(&axi_data, 0, sizeof(axi_data));
866 if (copy_from_user(&cfgcmd, arg, sizeof(cfgcmd))) {
867 ERR_COPY_FROM_USER();
871 switch(cfgcmd.cmd_type) {
872 case CMD_STATS_ENABLE:
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__);
881 axi_data.region = ®ion[0];
884 case CMD_STATS_AF_ENABLE:
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__);
893 axi_data.region = ®ion[0];
897 case CMD_STATS_DISABLE:
900 pr_err("%s: unknown command type %d\n",
901 __FUNCTION__, cfgcmd.cmd_type);
906 if (sync->vfefn.vfe_config)
907 rc = sync->vfefn.vfe_config(&cfgcmd, data);
912 static int msm_frame_axi_cfg(struct msm_sync *sync,
913 struct msm_vfe_cfg_cmd *cfgcmd)
916 struct axidata axi_data;
917 void *data = &axi_data;
918 struct msm_pmem_region region[8];
921 memset(&axi_data, 0, sizeof(axi_data));
923 switch (cfgcmd->cmd_type) {
924 case CMD_AXI_CFG_OUT1:
925 pmem_type = MSM_PMEM_OUTPUT1;
927 msm_pmem_region_lookup(&sync->frame, pmem_type,
929 if (!axi_data.bufnum1) {
930 pr_err("%s: pmem region lookup error\n", __FUNCTION__);
935 case CMD_AXI_CFG_OUT2:
936 pmem_type = MSM_PMEM_OUTPUT2;
938 msm_pmem_region_lookup(&sync->frame, pmem_type,
940 if (!axi_data.bufnum2) {
941 pr_err("%s: pmem region lookup error\n", __FUNCTION__);
946 case CMD_AXI_CFG_SNAP_O1_AND_O2:
947 pmem_type = MSM_PMEM_THUMBAIL;
949 msm_pmem_region_lookup(&sync->frame, pmem_type,
951 if (!axi_data.bufnum1) {
952 pr_err("%s: pmem region lookup error\n", __FUNCTION__);
956 pmem_type = MSM_PMEM_MAINIMG;
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__);
966 case CMD_RAW_PICT_AXI_CFG:
967 pmem_type = MSM_PMEM_RAW_MAINIMG;
969 msm_pmem_region_lookup(&sync->frame, pmem_type,
971 if (!axi_data.bufnum2) {
972 pr_err("%s: pmem region lookup error\n", __FUNCTION__);
982 pr_err("%s: unknown command type %d\n",
983 __FUNCTION__, cfgcmd->cmd_type);
987 axi_data.region = ®ion[0];
989 /* send the AXI configuration command to driver */
990 if (sync->vfefn.vfe_config)
991 rc = sync->vfefn.vfe_config(cfgcmd, data);
996 static int msm_get_sensor_info(struct msm_sync *sync, void __user *arg)
999 struct msm_camsensor_info info;
1000 struct msm_camera_sensor_info *sdata;
1002 if (copy_from_user(&info,
1004 sizeof(struct msm_camsensor_info))) {
1005 ERR_COPY_FROM_USER();
1009 sdata = sync->pdev->dev.platform_data;
1010 CDBG("sensor_name %s\n", sdata->sensor_name);
1012 memcpy(&info.name[0],
1015 info.flash_enabled = sdata->flash_type != MSM_CAMERA_FLASH_NONE;
1017 /* copy back to user space */
1018 if (copy_to_user((void *)arg,
1020 sizeof(struct msm_camsensor_info))) {
1028 static int __msm_put_frame_buf(struct msm_sync *sync,
1029 struct msm_frame *pb)
1032 struct msm_vfe_cfg_cmd cfgcmd;
1036 pphy = msm_pmem_frame_vtop_lookup(sync,
1038 pb->y_off, pb->cbcr_off, pb->fd);
1041 CDBG("rel: vaddr = 0x%lx, paddr = 0x%lx\n",
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);
1048 pr_err("%s: msm_pmem_frame_vtop_lookup failed\n",
1056 static int msm_put_frame_buffer(struct msm_sync *sync, void __user *arg)
1058 struct msm_frame buf_t;
1060 if (copy_from_user(&buf_t,
1062 sizeof(struct msm_frame))) {
1063 ERR_COPY_FROM_USER();
1067 return __msm_put_frame_buf(sync, &buf_t);
1070 static int __msm_register_pmem(struct msm_sync *sync,
1071 struct msm_pmem_info *pinfo)
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);
1084 case MSM_PMEM_AEC_AWB:
1086 rc = msm_pmem_table_add(&sync->stats, pinfo);
1097 static int msm_register_pmem(struct msm_sync *sync, void __user *arg)
1099 struct msm_pmem_info info;
1101 if (copy_from_user(&info, arg, sizeof(info))) {
1102 ERR_COPY_FROM_USER();
1106 return __msm_register_pmem(sync, &info);
1109 static int msm_stats_axi_cfg(struct msm_sync *sync,
1110 struct msm_vfe_cfg_cmd *cfgcmd)
1113 struct axidata axi_data;
1114 void *data = &axi_data;
1116 struct msm_pmem_region region[3];
1117 int pmem_type = MSM_PMEM_MAX;
1119 memset(&axi_data, 0, sizeof(axi_data));
1121 switch (cfgcmd->cmd_type) {
1122 case CMD_STATS_AXI_CFG:
1123 pmem_type = MSM_PMEM_AEC_AWB;
1125 case CMD_STATS_AF_AXI_CFG:
1126 pmem_type = MSM_PMEM_AF;
1132 pr_err("%s: unknown command type %d\n",
1133 __FUNCTION__, cfgcmd->cmd_type);
1137 if (cfgcmd->cmd_type != CMD_GENERAL) {
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__);
1145 axi_data.region = ®ion[0];
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);
1155 static int msm_put_stats_buffer(struct msm_sync *sync, void __user *arg)
1159 struct msm_stats_buf buf;
1161 struct msm_vfe_cfg_cmd cfgcmd;
1163 if (copy_from_user(&buf, arg,
1164 sizeof(struct msm_stats_buf))) {
1165 ERR_COPY_FROM_USER();
1169 CDBG("msm_put_stats_buffer\n");
1170 pphy = msm_pmem_stats_vtop_lookup(sync, buf.buffer, buf.fd);
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;
1178 pr_err("%s: invalid buf type %d\n",
1185 cfgcmd.value = (void *)&buf;
1187 if (sync->vfefn.vfe_config) {
1188 rc = sync->vfefn.vfe_config(&cfgcmd, &pphy);
1190 pr_err("msm_put_stats_buffer: "\
1191 "vfe_config err %d\n", rc);
1193 pr_err("msm_put_stats_buffer: vfe_config is NULL\n");
1195 pr_err("msm_put_stats_buffer: NULL physical address\n");
1203 static int msm_axi_config(struct msm_sync *sync, void __user *arg)
1205 struct msm_vfe_cfg_cmd cfgcmd;
1207 if (copy_from_user(&cfgcmd, arg, sizeof(cfgcmd))) {
1208 ERR_COPY_FROM_USER();
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);
1219 case CMD_STATS_AXI_CFG:
1220 case CMD_STATS_AF_AXI_CFG:
1221 return msm_stats_axi_cfg(sync, &cfgcmd);
1224 pr_err("%s: unknown command type %d\n",
1233 static int __msm_get_pic(struct msm_sync *sync, struct msm_ctrl_cmd *ctrl)
1235 unsigned long flags;
1239 struct msm_queue_cmd *qcmd = NULL;
1241 tm = (int)ctrl->timeout_ms;
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)) {
1251 pr_err("msm_camera_get_picture, rc = %d\n", rc);
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);
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;
1277 static int msm_get_pic(struct msm_sync *sync, void __user *arg)
1279 struct msm_ctrl_cmd ctrlcmd_t;
1282 if (copy_from_user(&ctrlcmd_t,
1284 sizeof(struct msm_ctrl_cmd))) {
1285 ERR_COPY_FROM_USER();
1289 rc = __msm_get_pic(sync, &ctrlcmd_t);
1293 if (sync->croplen) {
1294 if (ctrlcmd_t.length < sync->croplen) {
1295 pr_err("msm_get_pic: invalid len %d\n",
1299 if (copy_to_user(ctrlcmd_t.value,
1307 if (copy_to_user((void *)arg,
1309 sizeof(struct msm_ctrl_cmd))) {
1316 static int msm_set_crop(struct msm_sync *sync, void __user *arg)
1318 struct crop_info crop;
1320 if (copy_from_user(&crop,
1322 sizeof(struct crop_info))) {
1323 ERR_COPY_FROM_USER();
1327 if (!sync->croplen) {
1328 sync->cropinfo = kmalloc(crop.len, GFP_KERNEL);
1329 if (!sync->cropinfo)
1331 } else if (sync->croplen < crop.len)
1334 if (copy_from_user(sync->cropinfo,
1337 ERR_COPY_FROM_USER();
1338 kfree(sync->cropinfo);
1342 sync->croplen = crop.len;
1347 static int msm_pict_pp_done(struct msm_sync *sync, void __user *arg)
1349 struct msm_ctrl_cmd udata;
1350 struct msm_ctrl_cmd *ctrlcmd = NULL;
1351 struct msm_queue_cmd *qcmd = NULL;
1352 unsigned long flags;
1358 if (copy_from_user(&udata, arg, sizeof(struct msm_ctrl_cmd))) {
1359 ERR_COPY_FROM_USER();
1364 qcmd = kmalloc(sizeof(struct msm_queue_cmd) +
1365 sizeof(struct msm_ctrl_cmd),
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;
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);
1387 static long msm_ioctl_common(struct msm_device *pmsm,
1391 CDBG("msm_ioctl_common\n");
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);
1402 static long msm_ioctl_config(struct file *filep, unsigned int cmd,
1406 void __user *argp = (void __user *)arg;
1407 struct msm_device *pmsm = filep->private_data;
1409 CDBG("msm_ioctl_config cmd = %d\n", _IOC_NR(cmd));
1412 case MSM_CAM_IOCTL_GET_SENSOR_INFO:
1413 rc = msm_get_sensor_info(pmsm->sync, argp);
1416 case MSM_CAM_IOCTL_CONFIG_VFE:
1417 /* Coming from config thread for update */
1418 rc = msm_config_vfe(pmsm->sync, argp);
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);
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);
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);
1439 case MSM_CAM_IOCTL_VFE_APPS_RESET:
1440 msm_camio_vfe_blk_reset();
1444 case MSM_CAM_IOCTL_RELEASE_STATS_BUFFER:
1445 rc = msm_put_stats_buffer(pmsm->sync, argp);
1448 case MSM_CAM_IOCTL_AXI_CONFIG:
1449 rc = msm_axi_config(pmsm->sync, argp);
1452 case MSM_CAM_IOCTL_SET_CROP:
1453 rc = msm_set_crop(pmsm->sync, argp);
1456 case MSM_CAM_IOCTL_PICT_PP: {
1458 if (copy_from_user(&enable, argp, sizeof(enable))) {
1459 ERR_COPY_FROM_USER();
1462 pmsm->sync->pict_pp = enable;
1468 case MSM_CAM_IOCTL_PICT_PP_DONE:
1469 rc = msm_pict_pp_done(pmsm->sync, argp);
1472 case MSM_CAM_IOCTL_SENSOR_IO_CFG:
1473 rc = pmsm->sync->sctrl.s_config(argp);
1476 case MSM_CAM_IOCTL_FLASH_LED_CFG: {
1478 if (copy_from_user(&led_state, argp, sizeof(led_state))) {
1479 ERR_COPY_FROM_USER();
1482 rc = msm_camera_flash_set_led_state(led_state);
1487 rc = msm_ioctl_common(pmsm, cmd, argp);
1491 CDBG("msm_ioctl_config cmd = %d DONE\n", _IOC_NR(cmd));
1495 static int msm_unblock_poll_frame(struct msm_sync *);
1497 static long msm_ioctl_frame(struct file *filep, unsigned int cmd,
1501 void __user *argp = (void __user *)arg;
1502 struct msm_device *pmsm = filep->private_data;
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);
1511 case MSM_CAM_IOCTL_RELEASE_FRAME_BUFFER:
1512 rc = msm_put_frame_buffer(pmsm->sync, argp);
1514 case MSM_CAM_IOCTL_UNBLOCK_POLL_FRAME:
1515 rc = msm_unblock_poll_frame(pmsm->sync);
1525 static long msm_ioctl_control(struct file *filep, unsigned int cmd,
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;
1534 case MSM_CAM_IOCTL_CTRL_COMMAND:
1535 /* Coming from control thread, may need to wait for
1537 rc = msm_control(ctrl_pmsm, 1, argp);
1539 case MSM_CAM_IOCTL_CTRL_COMMAND_2:
1540 /* Sends a message, returns immediately */
1541 rc = msm_control(ctrl_pmsm, 0, argp);
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.
1547 rc = msm_ctrl_cmd_done(ctrl_pmsm, argp);
1549 case MSM_CAM_IOCTL_GET_PICTURE:
1550 rc = msm_get_pic(pmsm->sync, argp);
1553 rc = msm_ioctl_common(pmsm, cmd, argp);
1560 static int __msm_release(struct msm_sync *sync)
1562 struct msm_pmem_region *region;
1563 struct hlist_node *hnode;
1564 struct hlist_node *n;
1566 mutex_lock(&sync->lock);
1570 if (!sync->opencnt) {
1571 /* need to clean up system resource */
1572 if (sync->vfefn.vfe_release)
1573 sync->vfefn.vfe_release(sync->pdev);
1575 if (sync->cropinfo) {
1576 kfree(sync->cropinfo);
1577 sync->cropinfo = NULL;
1581 hlist_for_each_entry_safe(region, hnode, n,
1582 &sync->frame, list) {
1584 put_pmem_file(region->file);
1588 hlist_for_each_entry_safe(region, hnode, n,
1589 &sync->stats, list) {
1591 put_pmem_file(region->file);
1595 MSM_DRAIN_QUEUE(sync, msg_event_q);
1596 MSM_DRAIN_QUEUE(sync, prev_frame_q);
1597 MSM_DRAIN_QUEUE(sync, pict_frame_q);
1599 sync->sctrl.s_release();
1600 wake_unlock(&sync->wake_lock);
1602 sync->apps_id = NULL;
1603 CDBG("msm_release completed!\n");
1605 mutex_unlock(&sync->lock);
1610 static int msm_release_config(struct inode *node, struct file *filep)
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);
1620 static int msm_release_control(struct inode *node, struct file *filep)
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);
1628 MSM_DRAIN_QUEUE(&ctrl_pmsm->ctrl_q, ctrl_status_q);
1629 MSM_DRAIN_QUEUE(pmsm->sync, pict_frame_q);
1635 static int msm_release_frame(struct inode *node, struct file *filep)
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);
1642 MSM_DRAIN_QUEUE(pmsm->sync, prev_frame_q);
1643 atomic_set(&pmsm->opened, 0);
1648 static int msm_unblock_poll_frame(struct msm_sync *sync)
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);
1659 static unsigned int __msm_poll_frame(struct msm_sync *sync,
1661 struct poll_table_struct *pll_table)
1664 unsigned long flags;
1666 poll_wait(filep, &sync->prev_frame_wait, pll_table);
1668 spin_lock_irqsave(&sync->prev_frame_q_lock, flags);
1669 if (!list_empty_careful(&sync->prev_frame_q))
1671 rc = POLLIN | POLLRDNORM;
1672 if (sync->unblock_poll_frame) {
1673 CDBG("%s: sync->unblock_poll_frame is true\n", __func__);
1675 sync->unblock_poll_frame = 0;
1677 spin_unlock_irqrestore(&sync->prev_frame_q_lock, flags);
1682 static unsigned int msm_poll_frame(struct file *filep,
1683 struct poll_table_struct *pll_table)
1685 struct msm_device *pmsm = filep->private_data;
1686 return __msm_poll_frame(pmsm->sync, filep, pll_table);
1690 * This function executes in interrupt context.
1693 static void *msm_vfe_sync_alloc(int size,
1694 void *syncdata __attribute__((unused)))
1696 struct msm_queue_cmd *qcmd =
1697 kmalloc(sizeof(struct msm_queue_cmd) + size, GFP_ATOMIC);
1698 return qcmd ? qcmd + 1 : NULL;
1702 * This function executes in interrupt context.
1705 static void msm_vfe_sync(struct msm_vfe_resp *vdata,
1706 enum msm_queue qtype, void *syncdata)
1708 struct msm_queue_cmd *qcmd = NULL;
1709 struct msm_queue_cmd *qcmd_frame = NULL;
1710 struct msm_vfe_phy_info *fphy;
1712 unsigned long flags;
1713 struct msm_sync *sync = (struct msm_sync *)syncdata;
1715 pr_err("msm_camera: no context in dsp callback.\n");
1719 qcmd = ((struct msm_queue_cmd *)vdata) - 1;
1722 if (qtype == MSM_CAM_Q_VFE_MSG) {
1723 switch(vdata->type) {
1724 case VFE_MSG_OUTPUT1:
1725 case VFE_MSG_OUTPUT2:
1727 kmalloc(sizeof(struct msm_queue_cmd) +
1728 sizeof(struct msm_vfe_phy_info),
1732 fphy = (struct msm_vfe_phy_info *)(qcmd_frame + 1);
1735 qcmd_frame->type = MSM_CAM_Q_VFE_MSG;
1736 qcmd_frame->command = fphy;
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);
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");
1747 case VFE_MSG_SNAPSHOT:
1751 CDBG("snapshot pp = %d\n", sync->pict_pp);
1753 kmalloc(sizeof(struct msm_queue_cmd),
1757 qcmd_frame->type = MSM_CAM_Q_VFE_MSG;
1758 qcmd_frame->command = NULL;
1759 spin_lock_irqsave(&sync->pict_frame_q_lock,
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");
1767 CDBG("%s: qtype = %d not handled\n",
1768 __func__, vdata->type);
1773 qcmd->command = (void *)vdata;
1774 CDBG("vdata->type = %d\n", vdata->type);
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");
1787 static struct msm_vfe_callback msm_vfe_s = {
1788 .vfe_resp = msm_vfe_sync,
1789 .vfe_alloc = msm_vfe_sync_alloc,
1792 static int __msm_open(struct msm_sync *sync, const char *const apps_id)
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",
1800 sync->sdata->sensor_name,
1806 sync->apps_id = apps_id;
1808 if (!sync->opencnt) {
1809 wake_lock(&sync->wake_lock);
1811 msm_camvfe_fn_init(&sync->vfefn, sync);
1812 if (sync->vfefn.vfe_init) {
1813 rc = sync->vfefn.vfe_init(&msm_vfe_s,
1816 pr_err("vfe_init failed at %d\n", rc);
1819 rc = sync->sctrl.s_init(sync->sdata);
1821 pr_err("sensor init failed: %d\n", rc);
1825 pr_err("no sensor init func\n");
1831 INIT_HLIST_HEAD(&sync->frame);
1832 INIT_HLIST_HEAD(&sync->stats);
1833 sync->unblock_poll_frame = 0;
1839 mutex_unlock(&sync->lock);
1843 static int msm_open_common(struct inode *inode, struct file *filep,
1847 struct msm_device *pmsm =
1848 container_of(inode->i_cdev, struct msm_device, cdev);
1850 CDBG("msm_camera: open %s\n", filep->f_path.dentry->d_name.name);
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);
1858 rc = nonseekable_open(inode, filep);
1860 pr_err("msm_open: nonseekable_open error %d\n", rc);
1864 rc = __msm_open(pmsm->sync, MSM_APPS_ID_PROP);
1868 filep->private_data = pmsm;
1870 CDBG("msm_open() open: rc = %d\n", rc);
1874 static int msm_open(struct inode *inode, struct file *filep)
1876 return msm_open_common(inode, filep, 1);
1879 static int msm_open_control(struct inode *inode, struct file *filep)
1883 struct msm_control_device *ctrl_pmsm =
1884 kmalloc(sizeof(struct msm_control_device), GFP_KERNEL);
1888 rc = msm_open_common(inode, filep, 0);
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);
1898 CDBG("msm_open() open: rc = %d\n", rc);
1902 static int __msm_v4l2_control(struct msm_sync *sync,
1903 struct msm_ctrl_cmd *out)
1907 struct msm_queue_cmd *qcmd = NULL, *rcmd = NULL;
1908 struct msm_ctrl_cmd *ctrl;
1909 struct msm_control_device_queue FIXME;
1911 /* wake up config thread, 4 is for V4L2 application */
1912 qcmd = kmalloc(sizeof(struct msm_queue_cmd), GFP_KERNEL);
1914 pr_err("msm_control: cannot allocate buffer\n");
1918 qcmd->type = MSM_CAM_Q_V4L2_REQ;
1919 qcmd->command = out;
1921 rcmd = __msm_control(sync, &FIXME, qcmd, out->timeout_ms);
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);
1933 if (rcmd) kfree(rcmd);
1934 CDBG("__msm_v4l2_control: end rc = %d\n", rc);
1938 static const struct file_operations msm_fops_config = {
1939 .owner = THIS_MODULE,
1941 .unlocked_ioctl = msm_ioctl_config,
1942 .release = msm_release_config,
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,
1952 static const struct file_operations msm_fops_frame = {
1953 .owner = THIS_MODULE,
1955 .unlocked_ioctl = msm_ioctl_frame,
1956 .release = msm_release_frame,
1957 .poll = msm_poll_frame,
1960 static int msm_setup_cdev(struct msm_device *msm,
1964 const struct file_operations *fops)
1968 struct device *device =
1969 device_create(msm_class, NULL,
1971 "%s%d", suffix, node);
1973 if (IS_ERR(device)) {
1974 rc = PTR_ERR(device);
1975 pr_err("msm_camera: error creating device: %d\n", rc);
1979 cdev_init(&msm->cdev, fops);
1980 msm->cdev.owner = THIS_MODULE;
1982 rc = cdev_add(&msm->cdev, devno, 1);
1984 pr_err("msm_camera: error adding cdev: %d\n", rc);
1985 device_destroy(msm_class, devno);
1992 static int msm_tear_down_cdev(struct msm_device *msm, dev_t devno)
1994 cdev_del(&msm->cdev);
1995 device_destroy(msm_class, devno);
1999 int msm_v4l2_register(struct msm_v4l2_driver *drv)
2001 /* FIXME: support multiple sensors */
2002 if (list_empty(&msm_sensors))
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;
2017 EXPORT_SYMBOL(msm_v4l2_register);
2019 int msm_v4l2_unregister(struct msm_v4l2_driver *drv)
2024 EXPORT_SYMBOL(msm_v4l2_unregister);
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 *))
2032 struct msm_sensor_ctrl sctrl;
2033 sync->sdata = pdev->dev.platform_data;
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);
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);
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);
2047 wake_lock_init(&sync->wake_lock, WAKE_LOCK_IDLE, "msm_camera");
2049 rc = msm_camio_probe_on(pdev);
2052 rc = sensor_probe(sync->sdata, &sctrl);
2055 sync->sctrl = sctrl;
2057 msm_camio_probe_off(pdev);
2059 pr_err("msm_camera: failed to initialize %s\n",
2060 sync->sdata->sensor_name);
2061 wake_lock_destroy(&sync->wake_lock);
2066 mutex_init(&sync->lock);
2067 CDBG("initialized %s\n", sync->sdata->sensor_name);
2071 static int msm_sync_destroy(struct msm_sync *sync)
2073 wake_lock_destroy(&sync->wake_lock);
2077 static int msm_device_init(struct msm_device *pmsm,
2078 struct msm_sync *sync,
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);
2086 pr_err("error creating control node: %d\n", rc);
2090 rc = msm_setup_cdev(pmsm + 1, node,
2091 MKDEV(MAJOR(msm_devno), dev_num + 1),
2092 "config", &msm_fops_config);
2094 pr_err("error creating config node: %d\n", rc);
2095 msm_tear_down_cdev(pmsm, MKDEV(MAJOR(msm_devno),
2100 rc = msm_setup_cdev(pmsm + 2, node,
2101 MKDEV(MAJOR(msm_devno), dev_num + 2),
2102 "frame", &msm_fops_frame);
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));
2112 atomic_set(&pmsm[0].opened, 0);
2113 atomic_set(&pmsm[1].opened, 0);
2114 atomic_set(&pmsm[2].opened, 0);
2116 pmsm[0].sync = sync;
2117 pmsm[1].sync = sync;
2118 pmsm[2].sync = sync;
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 *))
2127 struct msm_device *pmsm = NULL;
2128 struct msm_sync *sync;
2130 static int camera_node;
2132 if (camera_node >= MSM_MAX_CAMERA_SENSORS) {
2133 pr_err("msm_camera: too many camera sensors\n");
2138 /* There are three device nodes per sensor */
2139 rc = alloc_chrdev_region(&msm_devno, 0,
2140 3 * MSM_MAX_CAMERA_SENSORS,
2143 pr_err("msm_camera: failed to allocate chrdev: %d\n",
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",
2157 pmsm = kzalloc(sizeof(struct msm_device) * 3 +
2158 sizeof(struct msm_sync), GFP_ATOMIC);
2161 sync = (struct msm_sync *)(pmsm + 3);
2163 rc = msm_sync_init(sync, dev, sensor_probe);
2169 CDBG("setting camera node %d\n", camera_node);
2170 rc = msm_device_init(pmsm, sync, camera_node);
2172 msm_sync_destroy(sync);
2178 list_add(&sync->list, &msm_sensors);
2181 EXPORT_SYMBOL(msm_camera_drv_start);