static int camera_v4l2_close(struct file *filep) { int rc = 0; struct v4l2_event event; struct msm_video_device *pvdev = video_drvdata(filep); struct camera_v4l2_private *sp = fh_to_private(filep->private_data); unsigned int opn_idx, mask; BUG_ON(!pvdev); opn_idx = atomic_read(&pvdev->opened); pr_debug("%s: close stream_id=%d\n", __func__, sp->stream_id); mask = (1 << sp->stream_id); opn_idx &= ~mask; atomic_set(&pvdev->opened, opn_idx); if (atomic_read(&pvdev->opened) == 0) { camera_pack_event(filep, MSM_CAMERA_SET_PARM, MSM_CAMERA_PRIV_DEL_STREAM, -1, &event); /* Donot wait, imaging server may have crashed */ msm_post_event(&event, MSM_POST_EVT_TIMEOUT); camera_pack_event(filep, MSM_CAMERA_DEL_SESSION, 0, -1, &event); /* Donot wait, imaging server may have crashed */ msm_post_event(&event, -1); msm_delete_command_ack_q(pvdev->vdev->num, 0); /* This should take care of both normal close * and application crashes */ msm_destroy_session(pvdev->vdev->num); /* Enable power collapse latency */ msm_pm_qos_update_request(CAMERA_ENABLE_PC_LATENCY); pm_relax(&pvdev->vdev->dev); } else { camera_pack_event(filep, MSM_CAMERA_SET_PARM, MSM_CAMERA_PRIV_DEL_STREAM, -1, &event); /* Donot wait, imaging server may have crashed */ msm_post_event(&event, MSM_POST_EVT_TIMEOUT); msm_delete_command_ack_q(pvdev->vdev->num, sp->stream_id); msm_delete_stream(pvdev->vdev->num, sp->stream_id); } camera_v4l2_vb2_q_release(filep); camera_v4l2_fh_release(filep); return rc; }
static int camera_v4l2_close(struct file *filep) { int rc = 0; struct v4l2_event event; struct msm_video_device *pvdev = video_drvdata(filep); struct camera_v4l2_private *sp = fh_to_private(filep->private_data); BUG_ON(!pvdev); atomic_sub_return(1, &pvdev->opened); if (atomic_read(&pvdev->opened) == 0) { camera_pack_event(filep, MSM_CAMERA_SET_PARM, MSM_CAMERA_PRIV_DEL_STREAM, -1, &event); /* Donot wait, imaging server may have crashed */ msm_post_event(&event, MSM_POST_EVT_TIMEOUT); camera_pack_event(filep, MSM_CAMERA_DEL_SESSION, 0, -1, &event); /* Donot wait, imaging server may have crashed */ #if 1 // wait for signal msm_post_event(&event, MSM_POST_EVT_TIMEOUT); #else msm_post_event(&event, -1); #endif msm_delete_command_ack_q(pvdev->vdev->num, 0); /* This should take care of both normal close * and application crashes */ msm_destroy_session(pvdev->vdev->num); } else { camera_pack_event(filep, MSM_CAMERA_SET_PARM, MSM_CAMERA_PRIV_DEL_STREAM, -1, &event); /* Donot wait, imaging server may have crashed */ msm_post_event(&event, MSM_POST_EVT_TIMEOUT); msm_delete_command_ack_q(pvdev->vdev->num, sp->stream_id); msm_delete_stream(pvdev->vdev->num, sp->stream_id); } camera_v4l2_vb2_q_release(filep); camera_v4l2_fh_release(filep); return rc; }
static int camera_v4l2_s_parm(struct file *filep, void *fh, struct v4l2_streamparm *parm) { int rc = 0; struct v4l2_event event; struct msm_v4l2_event_data *event_data = (struct msm_v4l2_event_data *)&event.u.data[0]; struct camera_v4l2_private *sp = fh_to_private(fh); camera_pack_event(filep, MSM_CAMERA_SET_PARM, MSM_CAMERA_PRIV_NEW_STREAM, -1, &event); rc = msm_create_stream(event_data->session_id, event_data->stream_id, &sp->vb2_q); if (rc < 0) { pr_err("%s : msm_create_stream failed", __func__); return rc; } rc = msm_post_event(&event, MSM_POST_EVT_TIMEOUT); if (rc < 0) { pr_err("%s : msm_post_event failed!", __func__); goto error; } rc = camera_check_event_status(&event); if (rc < 0) { pr_err("%s : camera_check_event_status failed!", __func__); goto error; } /* use stream_id as stream index */ parm->parm.capture.extendedmode = sp->stream_id; return rc; error: msm_delete_stream(event_data->session_id, event_data->stream_id); return rc; }
static int camera_v4l2_close(struct file *filep) { int rc = 0; struct v4l2_event event; struct msm_video_device *pvdev = video_drvdata(filep); struct camera_v4l2_private *sp = fh_to_private(filep->private_data); unsigned int opn_idx, mask; struct msm_session *session; BUG_ON(!pvdev); session = msm_session_find(pvdev->vdev->num); if (WARN_ON(!session)) return -EIO; opn_idx = atomic_read(&pvdev->opened); pr_info("[CAM]%s: close stream_id=%d +\n", __func__, sp->stream_id); pr_debug("%s: close stream_id=%d\n", __func__, sp->stream_id); mask = (1 << sp->stream_id); opn_idx &= ~mask; atomic_set(&pvdev->opened, opn_idx); if (atomic_read(&pvdev->opened) == 0) { mutex_lock(&session->close_lock); camera_pack_event(filep, MSM_CAMERA_SET_PARM, MSM_CAMERA_PRIV_DEL_STREAM, -1, &event); pr_info("[CAM]%s: + MSM_CAMERA_PRIV_DEL_STREAM 1\n", __func__); msm_post_event(&event, MSM_POST_EVT_TIMEOUT); pr_info("[CAM]%s: -\n", __func__); camera_pack_event(filep, MSM_CAMERA_DEL_SESSION, 0, -1, &event); pr_info("[CAM]%s: + MSM_CAMERA_DEL_SESSION 2\n", __func__); msm_post_event(&event, MSM_POST_EVT_TIMEOUT); pr_info("[CAM]%s: -\n", __func__); msm_delete_command_ack_q(pvdev->vdev->num, 0); mutex_unlock(&session->close_lock); pr_info("[CAM]%s: msm_delete_command_ack_q done\n", __func__); camera_v4l2_vb2_q_release(filep); pr_info("[CAM]%s: camera_v4l2_vb2_q_release done\n", __func__); msm_destroy_session(pvdev->vdev->num); pr_info("[CAM]%s: msm_destroy_session done\n", __func__); pm_relax(&pvdev->vdev->dev); pr_info("[CAM]%s: pm_relax done\n", __func__); } else { mutex_lock(&session->close_lock); camera_pack_event(filep, MSM_CAMERA_SET_PARM, MSM_CAMERA_PRIV_DEL_STREAM, -1, &event); pr_info("[CAM]%s: + MSM_CAMERA_PRIV_DEL_STREAM\n", __func__); msm_post_event(&event, MSM_POST_EVT_TIMEOUT); pr_info("[CAM]%s: -\n", __func__); msm_delete_command_ack_q(pvdev->vdev->num, sp->stream_id); camera_v4l2_vb2_q_release(filep); msm_delete_stream(pvdev->vdev->num, sp->stream_id); mutex_unlock(&session->close_lock); } camera_v4l2_fh_release(filep); pr_info("[CAM]%s: close -\n", __func__); return rc; }