static int camera_v4l2_open(struct file *filep)
{
int rc = 0;
struct v4l2_event event;
struct msm_video_device *pvdev = video_drvdata(filep);
BUG_ON(!pvdev);
rc = camera_v4l2_fh_open(filep);
if (rc < 0)
goto fh_open_fail;
/* every stream has a vb2 queue */
rc = camera_v4l2_vb2_q_init(filep);
if (rc < 0)
goto vb2_q_fail;
if (!atomic_read(&pvdev->opened)) {
/* create a new session when first opened */
rc = msm_create_session(pvdev->vdev->num, pvdev->vdev);
if (rc < 0)
goto session_fail;
rc = msm_create_command_ack_q(pvdev->vdev->num, 0);
if (rc < 0)
goto command_ack_q_fail;
camera_pack_event(filep, MSM_CAMERA_NEW_SESSION, 0, -1, &event);
rc = msm_post_event(&event, MSM_POST_EVT_TIMEOUT);
if (rc < 0)
goto post_fail;
rc = camera_check_event_status(&event);
if (rc < 0)
goto post_fail;
} else {
rc = msm_create_command_ack_q(pvdev->vdev->num,
atomic_read(&pvdev->stream_cnt));
if (rc < 0)
goto session_fail;
}
atomic_add(1, &pvdev->opened);
atomic_add(1, &pvdev->stream_cnt);
return rc;
post_fail:
msm_delete_command_ack_q(pvdev->vdev->num, 0);
command_ack_q_fail:
msm_destroy_session(pvdev->vdev->num);
session_fail:
camera_v4l2_vb2_q_release(filep);
vb2_q_fail:
camera_v4l2_fh_release(filep);
fh_open_fail:
return rc;
}
static int camera_v4l2_open(struct file *filep)
{
int rc = 0;
struct v4l2_event event;
struct msm_video_device *pvdev = video_drvdata(filep);
BUG_ON(!pvdev);
rc = camera_v4l2_fh_open(filep);
if (rc < 0) {
pr_err("%s : camera_v4l2_fh_open failed Line %d rc %d\n",
__func__, __LINE__, rc);
goto fh_open_fail;
}
/* every stream has a vb2 queue */
rc = camera_v4l2_vb2_q_init(filep);
if (rc < 0) {
pr_err("%s : vb2 queue init fails Line %d rc %d\n",
__func__, __LINE__, rc);
goto vb2_q_fail;
}
if (!atomic_read(&pvdev->opened)) {
pm_stay_awake(&pvdev->vdev->dev);
/* create a new session when first opened */
rc = msm_create_session(pvdev->vdev->num, pvdev->vdev);
if (rc < 0) {
pr_err("%s : session creation failed Line %d rc %d\n",
__func__, __LINE__, rc);
goto session_fail;
}
rc = msm_create_command_ack_q(pvdev->vdev->num, 0);
if (rc < 0) {
pr_err("%s : creation of command_ack queue failed\n",
__func__);
pr_err("%s : Line %d rc %d\n", __func__, __LINE__, rc);
goto command_ack_q_fail;
}
camera_pack_event(filep, MSM_CAMERA_NEW_SESSION, 0, -1, &event);
rc = msm_post_event(&event, MSM_POST_EVT_TIMEOUT);
if (rc < 0) {
pr_err("%s : posting of NEW_SESSION event failed\n",
__func__);
pr_err("%s : Line %d rc %d\n", __func__, __LINE__, rc);
goto post_fail;
}
rc = camera_check_event_status(&event);
if (rc < 0) {
pr_err("%s : checking event status fails Line %d rc %d\n",
__func__, __LINE__, rc);
goto post_fail;
}
} else {
rc = msm_create_command_ack_q(pvdev->vdev->num,
atomic_read(&pvdev->stream_cnt));
if (rc < 0) {
pr_err("%s : creation of command_ack queue failed Line %d rc %d\n",
__func__, __LINE__, rc);
goto session_fail;
}
}
atomic_add(1, &pvdev->opened);
atomic_add(1, &pvdev->stream_cnt);
return rc;
post_fail:
msm_delete_command_ack_q(pvdev->vdev->num, 0);
command_ack_q_fail:
msm_destroy_session(pvdev->vdev->num);
session_fail:
pm_relax(&pvdev->vdev->dev);
camera_v4l2_vb2_q_release(filep);
vb2_q_fail:
camera_v4l2_fh_release(filep);
fh_open_fail:
return rc;
}
static int camera_v4l2_open(struct file *filep)
{
int rc = 0;
struct v4l2_event event;
struct msm_video_device *pvdev = video_drvdata(filep);
unsigned int opn_idx, idx;
BUG_ON(!pvdev);
rc = camera_v4l2_fh_open(filep);
if (rc < 0) {
pr_err("%s : camera_v4l2_fh_open failed Line %d rc %d\n",
__func__, __LINE__, rc);
goto fh_open_fail;
}
opn_idx = atomic_read(&pvdev->opened);
idx = opn_idx;
/* every stream has a vb2 queue */
rc = camera_v4l2_vb2_q_init(filep);
if (rc < 0) {
pr_err("%s : vb2 queue init fails Line %d rc %d\n",
__func__, __LINE__, rc);
goto vb2_q_fail;
}
if (!atomic_read(&pvdev->opened)) {
pm_stay_awake(&pvdev->vdev->dev);
/* Disable power collapse latency */
msm_pm_qos_update_request(CAMERA_DISABLE_PC_LATENCY);
/* create a new session when first opened */
rc = msm_create_session(pvdev->vdev->num, pvdev->vdev);
if (rc < 0) {
pr_err("%s : session creation failed Line %d rc %d\n",
__func__, __LINE__, rc);
goto session_fail;
}
rc = msm_create_command_ack_q(pvdev->vdev->num,
find_first_zero_bit((const unsigned long *)&opn_idx,
MSM_CAMERA_STREAM_CNT_BITS));
if (rc < 0) {
pr_err("%s : creation of command_ack queue failed\n",
__func__);
pr_err("%s : Line %d rc %d\n", __func__, __LINE__, rc);
goto command_ack_q_fail;
}
camera_pack_event(filep, MSM_CAMERA_NEW_SESSION, 0, -1, &event);
rc = msm_post_event(&event, MSM_POST_EVT_TIMEOUT);
if (rc < 0) {
pr_err("%s : posting of NEW_SESSION event failed\n",
__func__);
pr_err("%s : Line %d rc %d\n", __func__, __LINE__, rc);
goto post_fail;
}
rc = camera_check_event_status(&event);
if (rc < 0) {
pr_err("%s : checking event status fails Line %d rc %d\n",
__func__, __LINE__, rc);
goto post_fail;
}
} else {
rc = msm_create_command_ack_q(pvdev->vdev->num,
find_first_zero_bit((const unsigned long *)&opn_idx,
MSM_CAMERA_STREAM_CNT_BITS));
if (rc < 0) {
pr_err("%s : creation of command_ack queue failed Line %d rc %d\n",
__func__, __LINE__, rc);
goto session_fail;
}
}
idx |= (1 << find_first_zero_bit((const unsigned long *)&opn_idx,
MSM_CAMERA_STREAM_CNT_BITS));
atomic_cmpxchg(&pvdev->opened, opn_idx, idx);
return rc;
post_fail:
msm_delete_command_ack_q(pvdev->vdev->num, 0);
command_ack_q_fail:
msm_destroy_session(pvdev->vdev->num);
session_fail:
pm_relax(&pvdev->vdev->dev);
camera_v4l2_vb2_q_release(filep);
vb2_q_fail:
camera_v4l2_fh_release(filep);
fh_open_fail:
return rc;
}
static int camera_v4l2_open(struct file *filep)
{
int rc = 0;
struct v4l2_event event;
struct msm_video_device *pvdev = video_drvdata(filep);
BUG_ON(!pvdev);
rc = camera_v4l2_fh_open(filep);
if (rc < 0) {
pr_err("%s : camera_v4l2_fh_open", __func__);
goto fh_open_fail;
}
/* every stream has a vb2 queue */
rc = camera_v4l2_vb2_q_init(filep);
if (rc < 0) {
pr_err("%s : camera_v4l2_vb2_q_init", __func__);
goto vb2_q_fail;
}
if (!atomic_read(&pvdev->opened)) {
/* create a new session when first opened */
rc = msm_create_session(pvdev->vdev->num, pvdev->vdev);
if (rc < 0) {
pr_err("%s : msm_create_session", __func__);
goto session_fail;
}
rc = msm_create_command_ack_q(pvdev->vdev->num, 0);
if (rc < 0) {
pr_err("%s : msm_create_command_ack_q", __func__);
goto command_ack_q_fail;
}
camera_pack_event(filep, MSM_CAMERA_NEW_SESSION, 0, -1, &event);
rc = msm_post_event(&event, MSM_POST_EVT_TIMEOUT);
if (rc < 0) {
pr_err("%s, __dbg: post fail \n", __func__);
if (qdaemon_task) {
if (!strncmp(qdaemon_task->comm, QDAEMON, strlen(QDAEMON))) {
pr_err("%s, kill daemon", __func__);
send_sig(SIGKILL, qdaemon_task, 0);
pr_err("%s, kill this", __func__);
send_sig(SIGKILL, current, 0);
} else
pr_err("%s, now (%s : %d)", __func__,
qdaemon_task->comm, task_pid_nr(qdaemon_task));
} else
pr_err("error!! can't look for daemon");
goto post_fail;
}
rc = camera_check_event_status(&event);
if (rc < 0) {
pr_err("%s : camera_check_event_status", __func__);
goto post_fail;
}
} else {
rc = msm_create_command_ack_q(pvdev->vdev->num,
atomic_read(&pvdev->opened));
if (rc < 0) {
pr_err("%s : msm_create_command_ack_q", __func__);
goto session_fail;
}
}
atomic_add(1, &pvdev->opened);
return rc;
post_fail:
msm_delete_command_ack_q(pvdev->vdev->num, 0);
command_ack_q_fail:
msm_destroy_session(pvdev->vdev->num);
session_fail:
camera_v4l2_vb2_q_release(filep);
vb2_q_fail:
camera_v4l2_fh_release(filep);
fh_open_fail:
return rc;
}