static void buffer_queue(struct vb2_buffer *vb)
{
struct flite_buffer *buf
= container_of(vb, struct flite_buffer, vb);
struct fimc_lite *fimc = vb2_get_drv_priv(vb->vb2_queue);
unsigned long flags;
spin_lock_irqsave(&fimc->slock, flags);
buf->paddr = vb2_dma_contig_plane_dma_addr(vb, 0);
if (!test_bit(ST_FLITE_SUSPENDED, &fimc->state) &&
!test_bit(ST_FLITE_STREAM, &fimc->state) &&
list_empty(&fimc->active_buf_q)) {
flite_hw_set_output_addr(fimc, buf->paddr);
fimc_lite_active_queue_add(fimc, buf);
} else {
fimc_lite_pending_queue_add(fimc, buf);
}
if (vb2_is_streaming(&fimc->vb_queue) &&
!list_empty(&fimc->pending_buf_q) &&
!test_and_set_bit(ST_FLITE_STREAM, &fimc->state)) {
flite_hw_capture_start(fimc);
spin_unlock_irqrestore(&fimc->slock, flags);
if (!test_and_set_bit(ST_SENSOR_STREAM, &fimc->state))
fimc_pipeline_s_stream(&fimc->pipeline, 1);
return;
}
spin_unlock_irqrestore(&fimc->slock, flags);
}
static int start_streaming(struct vb2_queue *q, unsigned int count)
{
struct fimc_lite *fimc = q->drv_priv;
int ret;
fimc->frame_count = 0;
ret = fimc_lite_hw_init(fimc);
if (ret) {
fimc_lite_reinit(fimc, false);
return ret;
}
set_bit(ST_FLITE_PENDING, &fimc->state);
if (!list_empty(&fimc->active_buf_q) &&
!test_and_set_bit(ST_FLITE_STREAM, &fimc->state)) {
flite_hw_capture_start(fimc);
if (!test_and_set_bit(ST_SENSOR_STREAM, &fimc->state))
fimc_pipeline_s_stream(&fimc->pipeline, 1);
}
if (debug > 0)
flite_hw_dump_regs(fimc, __func__);
return 0;
}
static int start_streaming(struct vb2_queue *q, unsigned int count)
{
struct fimc_ctx *ctx = q->drv_priv;
struct fimc_dev *fimc = ctx->fimc_dev;
struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
int min_bufs;
int ret;
vid_cap->frame_count = 0;
ret = fimc_init_capture(fimc);
if (ret)
goto error;
set_bit(ST_CAPT_PEND, &fimc->state);
min_bufs = fimc->vid_cap.reqbufs_count > 1 ? 2 : 1;
if (vid_cap->active_buf_cnt >= min_bufs &&
!test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
fimc_activate_capture(ctx);
if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
fimc_pipeline_s_stream(fimc, 1);
}
return 0;
error:
fimc_capture_state_cleanup(fimc, false);
return ret;
}
static void buffer_queue(struct vb2_buffer *vb)
{
struct fimc_vid_buffer *buf
= container_of(vb, struct fimc_vid_buffer, vb);
struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
struct fimc_dev *fimc = ctx->fimc_dev;
struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
unsigned long flags;
int min_bufs;
spin_lock_irqsave(&fimc->slock, flags);
fimc_prepare_addr(ctx, &buf->vb, &ctx->d_frame, &buf->paddr);
if (!test_bit(ST_CAPT_SUSPENDED, &fimc->state) &&
!test_bit(ST_CAPT_STREAM, &fimc->state) &&
vid_cap->active_buf_cnt < FIMC_MAX_OUT_BUFS) {
/* Setup the buffer directly for processing. */
int buf_id = (vid_cap->reqbufs_count == 1) ? -1 :
vid_cap->buf_index;
fimc_hw_set_output_addr(fimc, &buf->paddr, buf_id);
buf->index = vid_cap->buf_index;
fimc_active_queue_add(vid_cap, buf);
if (++vid_cap->buf_index >= FIMC_MAX_OUT_BUFS)
vid_cap->buf_index = 0;
} else {
fimc_pending_queue_add(vid_cap, buf);
}
min_bufs = vid_cap->reqbufs_count > 1 ? 2 : 1;
if (vb2_is_streaming(&vid_cap->vbq) &&
vid_cap->active_buf_cnt >= min_bufs &&
!test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
fimc_activate_capture(ctx);
spin_unlock_irqrestore(&fimc->slock, flags);
if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
fimc_pipeline_s_stream(fimc, 1);
return;
}
spin_unlock_irqrestore(&fimc->slock, flags);
}
/*
* Reinitialize the driver so it is ready to start the streaming again.
* Set fimc->state to indicate stream off and the hardware shut down state.
* If not suspending (@suspend is false), return any buffers to videobuf2.
* Otherwise put any owned buffers onto the pending buffers queue, so they
* can be re-spun when the device is being resumed. Also perform FIMC
* software reset and disable streaming on the whole pipeline if required.
*/
static int fimc_capture_state_cleanup(struct fimc_dev *fimc, bool suspend)
{
struct fimc_vid_cap *cap = &fimc->vid_cap;
struct fimc_vid_buffer *buf;
unsigned long flags;
bool streaming;
spin_lock_irqsave(&fimc->slock, flags);
streaming = fimc->state & (1 << ST_CAPT_ISP_STREAM);
fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_SHUT |
1 << ST_CAPT_STREAM | 1 << ST_CAPT_ISP_STREAM);
if (suspend)
fimc->state |= (1 << ST_CAPT_SUSPENDED);
else
fimc->state &= ~(1 << ST_CAPT_PEND | 1 << ST_CAPT_SUSPENDED);
/* Release unused buffers */
while (!suspend && !list_empty(&cap->pending_buf_q)) {
buf = fimc_pending_queue_pop(cap);
vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
}
/* If suspending put unused buffers onto pending queue */
while (!list_empty(&cap->active_buf_q)) {
buf = fimc_active_queue_pop(cap);
if (suspend)
fimc_pending_queue_add(cap, buf);
else
vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
}
fimc_hw_reset(fimc);
cap->buf_index = 0;
spin_unlock_irqrestore(&fimc->slock, flags);
if (streaming)
return fimc_pipeline_s_stream(&fimc->pipeline, 0);
else
return 0;
}
/*
* Reinitialize the driver so it is ready to start the streaming again.
* Set fimc->state to indicate stream off and the hardware shut down state.
* If not suspending (@suspend is false), return any buffers to videobuf2.
* Otherwise put any owned buffers onto the pending buffers queue, so they
* can be re-spun when the device is being resumed. Also perform FIMC
* software reset and disable streaming on the whole pipeline if required.
*/
static int fimc_lite_reinit(struct fimc_lite *fimc, bool suspend)
{
struct flite_buffer *buf;
unsigned long flags;
bool streaming;
spin_lock_irqsave(&fimc->slock, flags);
streaming = fimc->state & (1 << ST_SENSOR_STREAM);
fimc->state &= ~(1 << ST_FLITE_RUN | 1 << ST_FLITE_OFF |
1 << ST_FLITE_STREAM | 1 << ST_SENSOR_STREAM);
if (suspend)
fimc->state |= (1 << ST_FLITE_SUSPENDED);
else
fimc->state &= ~(1 << ST_FLITE_PENDING |
1 << ST_FLITE_SUSPENDED);
/* Release unused buffers */
while (!suspend && !list_empty(&fimc->pending_buf_q)) {
buf = fimc_lite_pending_queue_pop(fimc);
vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
}
/* If suspending put unused buffers onto pending queue */
while (!list_empty(&fimc->active_buf_q)) {
buf = fimc_lite_active_queue_pop(fimc);
if (suspend)
fimc_lite_pending_queue_add(fimc, buf);
else
vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
}
spin_unlock_irqrestore(&fimc->slock, flags);
flite_hw_reset(fimc);
if (!streaming)
return 0;
return fimc_pipeline_s_stream(&fimc->pipeline, 0);
}
