Lines Matching full:dcmi
41 #define DRV_NAME "stm32-dcmi"
43 /* Registers offset for DCMI */
200 static int dcmi_start_capture(struct stm32_dcmi *dcmi, struct dcmi_buf *buf);
202 static void dcmi_buffer_done(struct stm32_dcmi *dcmi, in dcmi_buffer_done() argument
216 vbuf->sequence = dcmi->sequence++; in dcmi_buffer_done()
222 dev_dbg(dcmi->dev, "buffer[%d] done seq=%d, bytesused=%zu\n", in dcmi_buffer_done()
225 dcmi->buffers_count++; in dcmi_buffer_done()
226 dcmi->active = NULL; in dcmi_buffer_done()
229 static int dcmi_restart_capture(struct stm32_dcmi *dcmi) in dcmi_restart_capture() argument
233 spin_lock_irq(&dcmi->irqlock); in dcmi_restart_capture()
235 if (dcmi->state != RUNNING) { in dcmi_restart_capture()
236 spin_unlock_irq(&dcmi->irqlock); in dcmi_restart_capture()
241 if (list_empty(&dcmi->buffers)) { in dcmi_restart_capture()
242 dev_dbg(dcmi->dev, "Capture restart is deferred to next buffer queueing\n"); in dcmi_restart_capture()
243 dcmi->state = WAIT_FOR_BUFFER; in dcmi_restart_capture()
244 spin_unlock_irq(&dcmi->irqlock); in dcmi_restart_capture()
247 buf = list_entry(dcmi->buffers.next, struct dcmi_buf, list); in dcmi_restart_capture()
248 dcmi->active = buf; in dcmi_restart_capture()
250 spin_unlock_irq(&dcmi->irqlock); in dcmi_restart_capture()
252 return dcmi_start_capture(dcmi, buf); in dcmi_restart_capture()
257 struct stm32_dcmi *dcmi = (struct stm32_dcmi *)param; in dcmi_dma_callback() local
260 struct dcmi_buf *buf = dcmi->active; in dcmi_dma_callback()
262 spin_lock_irq(&dcmi->irqlock); in dcmi_dma_callback()
265 status = dmaengine_tx_status(dcmi->dma_chan, dcmi->dma_cookie, &state); in dcmi_dma_callback()
269 dev_dbg(dcmi->dev, "%s: Received DMA_IN_PROGRESS\n", __func__); in dcmi_dma_callback()
272 dev_err(dcmi->dev, "%s: Received DMA_PAUSED\n", __func__); in dcmi_dma_callback()
275 dev_err(dcmi->dev, "%s: Received DMA_ERROR\n", __func__); in dcmi_dma_callback()
278 dcmi_buffer_done(dcmi, buf, 0, -EIO); in dcmi_dma_callback()
281 dev_dbg(dcmi->dev, "%s: Received DMA_COMPLETE\n", __func__); in dcmi_dma_callback()
284 dcmi_buffer_done(dcmi, buf, buf->size, 0); in dcmi_dma_callback()
286 spin_unlock_irq(&dcmi->irqlock); in dcmi_dma_callback()
289 if (dcmi_restart_capture(dcmi)) in dcmi_dma_callback()
290 dev_err(dcmi->dev, "%s: Cannot restart capture on DMA complete\n", in dcmi_dma_callback()
294 dev_err(dcmi->dev, "%s: Received unknown status\n", __func__); in dcmi_dma_callback()
298 spin_unlock_irq(&dcmi->irqlock); in dcmi_dma_callback()
301 static int dcmi_start_dma(struct stm32_dcmi *dcmi, in dcmi_start_dma() argument
310 config.src_addr = (dma_addr_t)dcmi->res->start + DCMI_DR; in dcmi_start_dma()
316 ret = dmaengine_slave_config(dcmi->dma_chan, &config); in dcmi_start_dma()
318 dev_err(dcmi->dev, "%s: DMA channel config failed (%d)\n", in dcmi_start_dma()
328 mutex_lock(&dcmi->dma_lock); in dcmi_start_dma()
331 desc = dmaengine_prep_slave_sg(dcmi->dma_chan, buf->sgt.sgl, buf->sgt.nents, in dcmi_start_dma()
335 dev_err(dcmi->dev, "%s: DMA dmaengine_prep_slave_sg failed\n", __func__); in dcmi_start_dma()
336 mutex_unlock(&dcmi->dma_lock); in dcmi_start_dma()
342 desc->callback_param = dcmi; in dcmi_start_dma()
345 dcmi->dma_cookie = dmaengine_submit(desc); in dcmi_start_dma()
346 if (dma_submit_error(dcmi->dma_cookie)) { in dcmi_start_dma()
347 dev_err(dcmi->dev, "%s: DMA submission failed\n", __func__); in dcmi_start_dma()
348 mutex_unlock(&dcmi->dma_lock); in dcmi_start_dma()
352 mutex_unlock(&dcmi->dma_lock); in dcmi_start_dma()
354 dma_async_issue_pending(dcmi->dma_chan); in dcmi_start_dma()
359 static int dcmi_start_capture(struct stm32_dcmi *dcmi, struct dcmi_buf *buf) in dcmi_start_capture() argument
366 ret = dcmi_start_dma(dcmi, buf); in dcmi_start_capture()
368 dcmi->errors_count++; in dcmi_start_capture()
373 reg_set(dcmi->regs, DCMI_CR, CR_CAPTURE); in dcmi_start_capture()
378 static void dcmi_set_crop(struct stm32_dcmi *dcmi) in dcmi_set_crop() argument
383 size = ((dcmi->crop.height - 1) << 16) | in dcmi_set_crop()
384 ((dcmi->crop.width << 1) - 1); in dcmi_set_crop()
385 reg_write(dcmi->regs, DCMI_CWSIZE, size); in dcmi_set_crop()
388 start = ((dcmi->crop.top) << 16) | in dcmi_set_crop()
389 ((dcmi->crop.left << 1)); in dcmi_set_crop()
390 reg_write(dcmi->regs, DCMI_CWSTRT, start); in dcmi_set_crop()
392 dev_dbg(dcmi->dev, "Cropping to %ux%u@%u:%u\n", in dcmi_set_crop()
393 dcmi->crop.width, dcmi->crop.height, in dcmi_set_crop()
394 dcmi->crop.left, dcmi->crop.top); in dcmi_set_crop()
397 reg_set(dcmi->regs, DCMI_CR, CR_CROP); in dcmi_set_crop()
400 static void dcmi_process_jpeg(struct stm32_dcmi *dcmi) in dcmi_process_jpeg() argument
404 struct dcmi_buf *buf = dcmi->active; in dcmi_process_jpeg()
420 dmaengine_synchronize(dcmi->dma_chan); in dcmi_process_jpeg()
423 status = dmaengine_tx_status(dcmi->dma_chan, dcmi->dma_cookie, &state); in dcmi_process_jpeg()
426 dcmi_buffer_done(dcmi, buf, buf->size - state.residue, 0); in dcmi_process_jpeg()
428 dcmi->errors_count++; in dcmi_process_jpeg()
429 dev_err(dcmi->dev, "%s: Cannot get JPEG size from DMA\n", in dcmi_process_jpeg()
432 dcmi_buffer_done(dcmi, buf, 0, -EIO); in dcmi_process_jpeg()
436 dmaengine_terminate_sync(dcmi->dma_chan); in dcmi_process_jpeg()
439 if (dcmi_restart_capture(dcmi)) in dcmi_process_jpeg()
440 dev_err(dcmi->dev, "%s: Cannot restart capture on JPEG received\n", in dcmi_process_jpeg()
446 struct stm32_dcmi *dcmi = arg; in dcmi_irq_thread() local
448 spin_lock_irq(&dcmi->irqlock); in dcmi_irq_thread()
450 if (dcmi->misr & IT_OVR) { in dcmi_irq_thread()
451 dcmi->overrun_count++; in dcmi_irq_thread()
452 if (dcmi->overrun_count > OVERRUN_ERROR_THRESHOLD) in dcmi_irq_thread()
453 dcmi->errors_count++; in dcmi_irq_thread()
455 if (dcmi->misr & IT_ERR) in dcmi_irq_thread()
456 dcmi->errors_count++; in dcmi_irq_thread()
458 if (dcmi->sd_format->fourcc == V4L2_PIX_FMT_JPEG && in dcmi_irq_thread()
459 dcmi->misr & IT_FRAME) { in dcmi_irq_thread()
461 spin_unlock_irq(&dcmi->irqlock); in dcmi_irq_thread()
462 dcmi_process_jpeg(dcmi); in dcmi_irq_thread()
466 spin_unlock_irq(&dcmi->irqlock); in dcmi_irq_thread()
472 struct stm32_dcmi *dcmi = arg; in dcmi_irq_callback() local
475 spin_lock_irqsave(&dcmi->irqlock, flags); in dcmi_irq_callback()
477 dcmi->misr = reg_read(dcmi->regs, DCMI_MIS); in dcmi_irq_callback()
480 reg_set(dcmi->regs, DCMI_ICR, IT_FRAME | IT_OVR | IT_ERR); in dcmi_irq_callback()
482 spin_unlock_irqrestore(&dcmi->irqlock, flags); in dcmi_irq_callback()
493 struct stm32_dcmi *dcmi = vb2_get_drv_priv(vq); in dcmi_queue_setup() local
496 size = dcmi->fmt.fmt.pix.sizeimage; in dcmi_queue_setup()
505 dev_dbg(dcmi->dev, "Setup queue, count=%d, size=%d\n", in dcmi_queue_setup()
523 struct stm32_dcmi *dcmi = vb2_get_drv_priv(vb->vb2_queue); in dcmi_buf_prepare() local
532 size = dcmi->fmt.fmt.pix.sizeimage; in dcmi_buf_prepare()
535 dev_err(dcmi->dev, "%s data will not fit into plane (%lu < %lu)\n", in dcmi_buf_prepare()
545 if (buf->size > dcmi->dma_max_burst) in dcmi_buf_prepare()
546 num_sgs = DIV_ROUND_UP(buf->size, dcmi->dma_max_burst); in dcmi_buf_prepare()
550 dev_err(dcmi->dev, "sg table alloc failed\n"); in dcmi_buf_prepare()
556 dev_dbg(dcmi->dev, "buffer[%d] phy=%pad size=%zu\n", in dcmi_buf_prepare()
560 size_t bytes = min_t(size_t, size, dcmi->dma_max_burst); in dcmi_buf_prepare()
578 struct stm32_dcmi *dcmi = vb2_get_drv_priv(vb->vb2_queue); in dcmi_buf_queue() local
582 spin_lock_irq(&dcmi->irqlock); in dcmi_buf_queue()
585 list_add_tail(&buf->list, &dcmi->buffers); in dcmi_buf_queue()
587 if (dcmi->state == WAIT_FOR_BUFFER) { in dcmi_buf_queue()
588 dcmi->state = RUNNING; in dcmi_buf_queue()
589 dcmi->active = buf; in dcmi_buf_queue()
591 dev_dbg(dcmi->dev, "Starting capture on buffer[%d] queued\n", in dcmi_buf_queue()
594 spin_unlock_irq(&dcmi->irqlock); in dcmi_buf_queue()
595 if (dcmi_start_capture(dcmi, buf)) in dcmi_buf_queue()
596 dev_err(dcmi->dev, "%s: Cannot restart capture on overflow or error\n", in dcmi_buf_queue()
601 spin_unlock_irq(&dcmi->irqlock); in dcmi_buf_queue()
604 static struct media_entity *dcmi_find_source(struct stm32_dcmi *dcmi) in dcmi_find_source() argument
606 struct media_entity *entity = &dcmi->vdev->entity; in dcmi_find_source()
625 static int dcmi_pipeline_s_fmt(struct stm32_dcmi *dcmi, in dcmi_pipeline_s_fmt() argument
628 struct media_entity *entity = &dcmi->source->entity; in dcmi_pipeline_s_fmt()
662 dev_dbg(dcmi->dev, "\"%s\":%d pad format set to 0x%x %ux%u\n", in dcmi_pipeline_s_fmt()
669 dev_err(dcmi->dev, "%s: Failed to set format 0x%x %ux%u on \"%s\":%d pad (%d)\n", in dcmi_pipeline_s_fmt()
679 dev_dbg(dcmi->dev, "\"%s\":%d pad format has been changed to 0x%x %ux%u\n", in dcmi_pipeline_s_fmt()
698 struct stm32_dcmi *dcmi = vb2_get_drv_priv(vq); in dcmi_start_streaming() local
703 ret = pm_runtime_resume_and_get(dcmi->dev); in dcmi_start_streaming()
705 dev_err(dcmi->dev, "%s: Failed to start streaming, cannot get sync (%d)\n", in dcmi_start_streaming()
710 ret = video_device_pipeline_start(dcmi->vdev, &dcmi->pipeline); in dcmi_start_streaming()
712 dev_err(dcmi->dev, "%s: Failed to start streaming, media pipeline start error (%d)\n", in dcmi_start_streaming()
717 ret = v4l2_subdev_call(dcmi->s_subdev, video, s_stream, 1); in dcmi_start_streaming()
719 dev_err(dcmi->dev, "%s: Failed to start source subdev, error (%d)\n", in dcmi_start_streaming()
724 spin_lock_irq(&dcmi->irqlock); in dcmi_start_streaming()
727 switch (dcmi->bus.bus_width) { in dcmi_start_streaming()
743 if (dcmi->bus.flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) in dcmi_start_streaming()
747 if (dcmi->bus.flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) in dcmi_start_streaming()
751 if (dcmi->bus.flags & V4L2_MBUS_PCLK_SAMPLE_RISING) in dcmi_start_streaming()
759 * With DCMI this means LSC=SAV=0x80 & LEC=EAV=0x9d. in dcmi_start_streaming()
761 if (dcmi->bus_type == V4L2_MBUS_BT656) { in dcmi_start_streaming()
765 reg_write(dcmi->regs, DCMI_ESUR, 0xffffffff);/* FEC:LEC:LSC:FSC */ in dcmi_start_streaming()
768 reg_write(dcmi->regs, DCMI_ESCR, 0xff9d80ff);/* FEC:LEC:LSC:FSC */ in dcmi_start_streaming()
771 reg_write(dcmi->regs, DCMI_CR, val); in dcmi_start_streaming()
774 if (dcmi->do_crop) in dcmi_start_streaming()
775 dcmi_set_crop(dcmi); in dcmi_start_streaming()
778 if (dcmi->sd_format->fourcc == V4L2_PIX_FMT_JPEG) in dcmi_start_streaming()
779 reg_set(dcmi->regs, DCMI_CR, CR_CM);/* Snapshot mode */ in dcmi_start_streaming()
781 /* Enable dcmi */ in dcmi_start_streaming()
782 reg_set(dcmi->regs, DCMI_CR, CR_ENABLE); in dcmi_start_streaming()
784 dcmi->sequence = 0; in dcmi_start_streaming()
785 dcmi->errors_count = 0; in dcmi_start_streaming()
786 dcmi->overrun_count = 0; in dcmi_start_streaming()
787 dcmi->buffers_count = 0; in dcmi_start_streaming()
793 if (list_empty(&dcmi->buffers)) { in dcmi_start_streaming()
794 dev_dbg(dcmi->dev, "Start streaming is deferred to next buffer queueing\n"); in dcmi_start_streaming()
795 dcmi->state = WAIT_FOR_BUFFER; in dcmi_start_streaming()
796 spin_unlock_irq(&dcmi->irqlock); in dcmi_start_streaming()
800 buf = list_entry(dcmi->buffers.next, struct dcmi_buf, list); in dcmi_start_streaming()
801 dcmi->active = buf; in dcmi_start_streaming()
803 dcmi->state = RUNNING; in dcmi_start_streaming()
805 dev_dbg(dcmi->dev, "Start streaming, starting capture\n"); in dcmi_start_streaming()
807 spin_unlock_irq(&dcmi->irqlock); in dcmi_start_streaming()
808 ret = dcmi_start_capture(dcmi, buf); in dcmi_start_streaming()
810 dev_err(dcmi->dev, "%s: Start streaming failed, cannot start capture\n", in dcmi_start_streaming()
816 if (dcmi->sd_format->fourcc == V4L2_PIX_FMT_JPEG) in dcmi_start_streaming()
817 reg_set(dcmi->regs, DCMI_IER, IT_FRAME | IT_OVR | IT_ERR); in dcmi_start_streaming()
819 reg_set(dcmi->regs, DCMI_IER, IT_OVR | IT_ERR); in dcmi_start_streaming()
824 v4l2_subdev_call(dcmi->s_subdev, video, s_stream, 0); in dcmi_start_streaming()
827 video_device_pipeline_stop(dcmi->vdev); in dcmi_start_streaming()
830 pm_runtime_put(dcmi->dev); in dcmi_start_streaming()
832 spin_lock_irq(&dcmi->irqlock); in dcmi_start_streaming()
837 list_for_each_entry_safe(buf, node, &dcmi->buffers, list) { in dcmi_start_streaming()
841 dcmi->active = NULL; in dcmi_start_streaming()
842 spin_unlock_irq(&dcmi->irqlock); in dcmi_start_streaming()
849 struct stm32_dcmi *dcmi = vb2_get_drv_priv(vq); in dcmi_stop_streaming() local
853 ret = v4l2_subdev_call(dcmi->s_subdev, video, s_stream, 0); in dcmi_stop_streaming()
855 dev_err(dcmi->dev, "%s: Failed to stop source subdev, error (%d)\n", in dcmi_stop_streaming()
858 video_device_pipeline_stop(dcmi->vdev); in dcmi_stop_streaming()
860 spin_lock_irq(&dcmi->irqlock); in dcmi_stop_streaming()
863 reg_clear(dcmi->regs, DCMI_IER, IT_FRAME | IT_OVR | IT_ERR); in dcmi_stop_streaming()
865 /* Disable DCMI */ in dcmi_stop_streaming()
866 reg_clear(dcmi->regs, DCMI_CR, CR_ENABLE); in dcmi_stop_streaming()
869 list_for_each_entry_safe(buf, node, &dcmi->buffers, list) { in dcmi_stop_streaming()
874 dcmi->active = NULL; in dcmi_stop_streaming()
875 dcmi->state = STOPPED; in dcmi_stop_streaming()
877 spin_unlock_irq(&dcmi->irqlock); in dcmi_stop_streaming()
880 mutex_lock(&dcmi->dma_lock); in dcmi_stop_streaming()
881 dmaengine_terminate_sync(dcmi->dma_chan); in dcmi_stop_streaming()
882 mutex_unlock(&dcmi->dma_lock); in dcmi_stop_streaming()
884 pm_runtime_put(dcmi->dev); in dcmi_stop_streaming()
886 if (dcmi->errors_count) in dcmi_stop_streaming()
887 dev_warn(dcmi->dev, "Some errors found while streaming: errors=%d (overrun=%d), buffers=%d\n", in dcmi_stop_streaming()
888 dcmi->errors_count, dcmi->overrun_count, in dcmi_stop_streaming()
889 dcmi->buffers_count); in dcmi_stop_streaming()
890 dev_dbg(dcmi->dev, "Stop streaming, errors=%d (overrun=%d), buffers=%d\n", in dcmi_stop_streaming()
891 dcmi->errors_count, dcmi->overrun_count, in dcmi_stop_streaming()
892 dcmi->buffers_count); in dcmi_stop_streaming()
909 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_g_fmt_vid_cap() local
911 *fmt = dcmi->fmt; in dcmi_g_fmt_vid_cap()
916 static const struct dcmi_format *find_format_by_fourcc(struct stm32_dcmi *dcmi, in find_format_by_fourcc() argument
919 unsigned int num_formats = dcmi->num_of_sd_formats; in find_format_by_fourcc()
924 fmt = dcmi->sd_formats[i]; in find_format_by_fourcc()
932 static void __find_outer_frame_size(struct stm32_dcmi *dcmi, in __find_outer_frame_size() argument
940 for (i = 0; i < dcmi->num_of_sd_framesizes; i++) { in __find_outer_frame_size()
941 struct dcmi_framesize *fsize = &dcmi->sd_framesizes[i]; in __find_outer_frame_size()
952 match = &dcmi->sd_framesizes[0]; in __find_outer_frame_size()
957 static int dcmi_try_fmt(struct stm32_dcmi *dcmi, struct v4l2_format *f, in dcmi_try_fmt() argument
970 sd_fmt = find_format_by_fourcc(dcmi, pix->pixelformat); in dcmi_try_fmt()
972 if (!dcmi->num_of_sd_formats) in dcmi_try_fmt()
975 sd_fmt = dcmi->sd_formats[dcmi->num_of_sd_formats - 1]; in dcmi_try_fmt()
984 do_crop = dcmi->do_crop && (pix->pixelformat != V4L2_PIX_FMT_JPEG); in dcmi_try_fmt()
986 if (do_crop && dcmi->num_of_sd_framesizes) { in dcmi_try_fmt()
992 __find_outer_frame_size(dcmi, pix, &outer_sd_fsize); in dcmi_try_fmt()
998 ret = v4l2_subdev_call_state_try(dcmi->source, pad, set_fmt, &format); in dcmi_try_fmt()
1010 struct v4l2_rect c = dcmi->crop; in dcmi_try_fmt()
1024 dcmi->crop = c; in dcmi_try_fmt()
1027 pix->width = dcmi->crop.width; in dcmi_try_fmt()
1028 pix->height = dcmi->crop.height; in dcmi_try_fmt()
1043 static int dcmi_set_fmt(struct stm32_dcmi *dcmi, struct v4l2_format *f) in dcmi_set_fmt() argument
1060 ret = dcmi_try_fmt(dcmi, f, &sd_format, &sd_framesize); in dcmi_set_fmt()
1066 dcmi->bus_type != V4L2_MBUS_BT656) in dcmi_set_fmt()
1067 dcmi->do_crop = false; in dcmi_set_fmt()
1075 ret = dcmi_pipeline_s_fmt(dcmi, &format); in dcmi_set_fmt()
1079 dev_dbg(dcmi->dev, "Sensor format set to 0x%x %ux%u\n", in dcmi_set_fmt()
1081 dev_dbg(dcmi->dev, "Buffer format set to %4.4s %ux%u\n", in dcmi_set_fmt()
1085 dcmi->fmt = *f; in dcmi_set_fmt()
1086 dcmi->sd_format = sd_format; in dcmi_set_fmt()
1087 dcmi->sd_framesize = sd_framesize; in dcmi_set_fmt()
1095 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_s_fmt_vid_cap() local
1097 if (vb2_is_streaming(&dcmi->queue)) in dcmi_s_fmt_vid_cap()
1100 return dcmi_set_fmt(dcmi, f); in dcmi_s_fmt_vid_cap()
1106 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_try_fmt_vid_cap() local
1108 return dcmi_try_fmt(dcmi, f, NULL, NULL); in dcmi_try_fmt_vid_cap()
1114 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_enum_fmt_vid_cap() local
1116 if (f->index >= dcmi->num_of_sd_formats) in dcmi_enum_fmt_vid_cap()
1119 f->pixelformat = dcmi->sd_formats[f->index]->fourcc; in dcmi_enum_fmt_vid_cap()
1123 static int dcmi_get_sensor_format(struct stm32_dcmi *dcmi, in dcmi_get_sensor_format() argument
1131 ret = v4l2_subdev_call(dcmi->source, pad, get_fmt, NULL, &fmt); in dcmi_get_sensor_format()
1140 static int dcmi_set_sensor_format(struct stm32_dcmi *dcmi, in dcmi_set_sensor_format() argument
1149 sd_fmt = find_format_by_fourcc(dcmi, pix->pixelformat); in dcmi_set_sensor_format()
1151 if (!dcmi->num_of_sd_formats) in dcmi_set_sensor_format()
1154 sd_fmt = dcmi->sd_formats[dcmi->num_of_sd_formats - 1]; in dcmi_set_sensor_format()
1159 ret = v4l2_subdev_call_state_try(dcmi->source, pad, set_fmt, &format); in dcmi_set_sensor_format()
1166 static int dcmi_get_sensor_bounds(struct stm32_dcmi *dcmi, in dcmi_get_sensor_bounds() argument
1181 ret = v4l2_subdev_call(dcmi->source, pad, get_selection, in dcmi_get_sensor_bounds()
1196 for (i = 0; i < dcmi->num_of_sd_framesizes; i++) { in dcmi_get_sensor_bounds()
1197 struct dcmi_framesize *fsize = &dcmi->sd_framesizes[i]; in dcmi_get_sensor_bounds()
1218 ret = dcmi_get_sensor_format(dcmi, &pix); in dcmi_get_sensor_bounds()
1233 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_g_selection() local
1241 s->r = dcmi->sd_bounds; in dcmi_g_selection()
1244 if (dcmi->do_crop) { in dcmi_g_selection()
1245 s->r = dcmi->crop; in dcmi_g_selection()
1249 s->r.width = dcmi->fmt.fmt.pix.width; in dcmi_g_selection()
1250 s->r.height = dcmi->fmt.fmt.pix.height; in dcmi_g_selection()
1263 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_s_selection() local
1273 pix.pixelformat = dcmi->fmt.fmt.pix.pixelformat; in dcmi_s_selection()
1274 pix.width = dcmi->sd_bounds.width; in dcmi_s_selection()
1275 pix.height = dcmi->sd_bounds.height; in dcmi_s_selection()
1276 dcmi_set_sensor_format(dcmi, &pix); in dcmi_s_selection()
1291 if (!(r.top == dcmi->sd_bounds.top && in dcmi_s_selection()
1292 r.left == dcmi->sd_bounds.left && in dcmi_s_selection()
1293 r.width == dcmi->sd_bounds.width && in dcmi_s_selection()
1294 r.height == dcmi->sd_bounds.height)) { in dcmi_s_selection()
1296 dcmi->do_crop = true; in dcmi_s_selection()
1297 dcmi->crop = r; in dcmi_s_selection()
1298 dev_dbg(dcmi->dev, "s_selection: crop %ux%u@(%u,%u) from %ux%u\n", in dcmi_s_selection()
1303 dcmi->do_crop = false; in dcmi_s_selection()
1304 dev_dbg(dcmi->dev, "s_selection: crop is disabled\n"); in dcmi_s_selection()
1317 strscpy(cap->bus_info, "platform:dcmi", sizeof(cap->bus_info)); in dcmi_querycap()
1348 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_enum_framesizes() local
1356 sd_fmt = find_format_by_fourcc(dcmi, fsize->pixel_format); in dcmi_enum_framesizes()
1362 ret = v4l2_subdev_call(dcmi->source, pad, enum_frame_size, in dcmi_enum_framesizes()
1377 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_g_parm() local
1379 return v4l2_g_parm_cap(video_devdata(file), dcmi->source, p); in dcmi_g_parm()
1385 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_s_parm() local
1387 return v4l2_s_parm_cap(video_devdata(file), dcmi->source, p); in dcmi_s_parm()
1393 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_enum_frameintervals() local
1403 sd_fmt = find_format_by_fourcc(dcmi, fival->pixel_format); in dcmi_enum_frameintervals()
1409 ret = v4l2_subdev_call(dcmi->source, pad, in dcmi_enum_frameintervals()
1421 { .compatible = "st,stm32-dcmi"},
1428 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_open() local
1429 struct v4l2_subdev *sd = dcmi->source; in dcmi_open()
1432 if (mutex_lock_interruptible(&dcmi->lock)) in dcmi_open()
1446 ret = dcmi_set_fmt(dcmi, &dcmi->fmt); in dcmi_open()
1453 mutex_unlock(&dcmi->lock); in dcmi_open()
1459 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_release() local
1460 struct v4l2_subdev *sd = dcmi->source; in dcmi_release()
1464 mutex_lock(&dcmi->lock); in dcmi_release()
1473 mutex_unlock(&dcmi->lock); in dcmi_release()
1526 static int dcmi_set_default_fmt(struct stm32_dcmi *dcmi) in dcmi_set_default_fmt() argument
1534 .pixelformat = dcmi->sd_formats[0]->fourcc, in dcmi_set_default_fmt()
1539 ret = dcmi_try_fmt(dcmi, &f, NULL, NULL); in dcmi_set_default_fmt()
1542 dcmi->sd_format = dcmi->sd_formats[0]; in dcmi_set_default_fmt()
1543 dcmi->fmt = f; in dcmi_set_default_fmt()
1643 static int dcmi_formats_init(struct stm32_dcmi *dcmi) in dcmi_formats_init() argument
1647 struct v4l2_subdev *subdev = dcmi->source; in dcmi_formats_init()
1660 dcmi->bus_type == V4L2_MBUS_BT656) in dcmi_formats_init()
1668 dev_dbg(dcmi->dev, "Skipping fourcc/code: %4.4s/0x%x\n", in dcmi_formats_init()
1676 dev_dbg(dcmi->dev, "Supported fourcc/code: %4.4s/0x%x\n", in dcmi_formats_init()
1687 dcmi->num_of_sd_formats = num_fmts; in dcmi_formats_init()
1688 dcmi->sd_formats = devm_kcalloc(dcmi->dev, in dcmi_formats_init()
1691 if (!dcmi->sd_formats) { in dcmi_formats_init()
1692 dev_err(dcmi->dev, "Could not allocate memory\n"); in dcmi_formats_init()
1696 memcpy(dcmi->sd_formats, sd_fmts, in dcmi_formats_init()
1698 dcmi->sd_format = dcmi->sd_formats[0]; in dcmi_formats_init()
1703 static int dcmi_framesizes_init(struct stm32_dcmi *dcmi) in dcmi_framesizes_init() argument
1706 struct v4l2_subdev *subdev = dcmi->source; in dcmi_framesizes_init()
1709 .code = dcmi->sd_format->mbus_code, in dcmi_framesizes_init()
1723 dcmi->num_of_sd_framesizes = num_fsize; in dcmi_framesizes_init()
1724 dcmi->sd_framesizes = devm_kcalloc(dcmi->dev, num_fsize, in dcmi_framesizes_init()
1727 if (!dcmi->sd_framesizes) { in dcmi_framesizes_init()
1728 dev_err(dcmi->dev, "Could not allocate memory\n"); in dcmi_framesizes_init()
1733 dev_dbg(dcmi->dev, "Sensor supports %u frame sizes:\n", num_fsize); in dcmi_framesizes_init()
1734 for (i = 0; i < dcmi->num_of_sd_framesizes; i++) { in dcmi_framesizes_init()
1740 dcmi->sd_framesizes[fse.index].width = fse.max_width; in dcmi_framesizes_init()
1741 dcmi->sd_framesizes[fse.index].height = fse.max_height; in dcmi_framesizes_init()
1742 dev_dbg(dcmi->dev, "%ux%u\n", fse.max_width, fse.max_height); in dcmi_framesizes_init()
1750 struct stm32_dcmi *dcmi = notifier_to_dcmi(notifier); in dcmi_graph_notify_complete() local
1758 dcmi->source = media_entity_to_v4l2_subdev(dcmi_find_source(dcmi)); in dcmi_graph_notify_complete()
1759 if (!dcmi->source) { in dcmi_graph_notify_complete()
1760 dev_err(dcmi->dev, "Source subdevice not found\n"); in dcmi_graph_notify_complete()
1764 dcmi->vdev->ctrl_handler = dcmi->source->ctrl_handler; in dcmi_graph_notify_complete()
1766 ret = dcmi_formats_init(dcmi); in dcmi_graph_notify_complete()
1768 dev_err(dcmi->dev, "No supported mediabus format found\n"); in dcmi_graph_notify_complete()
1772 ret = dcmi_framesizes_init(dcmi); in dcmi_graph_notify_complete()
1774 dev_err(dcmi->dev, "Could not initialize framesizes\n"); in dcmi_graph_notify_complete()
1778 ret = dcmi_get_sensor_bounds(dcmi, &dcmi->sd_bounds); in dcmi_graph_notify_complete()
1780 dev_err(dcmi->dev, "Could not get sensor bounds\n"); in dcmi_graph_notify_complete()
1784 ret = dcmi_set_default_fmt(dcmi); in dcmi_graph_notify_complete()
1786 dev_err(dcmi->dev, "Could not set default format\n"); in dcmi_graph_notify_complete()
1790 ret = devm_request_threaded_irq(dcmi->dev, dcmi->irq, dcmi_irq_callback, in dcmi_graph_notify_complete()
1792 dev_name(dcmi->dev), dcmi); in dcmi_graph_notify_complete()
1794 dev_err(dcmi->dev, "Unable to request irq %d\n", dcmi->irq); in dcmi_graph_notify_complete()
1805 struct stm32_dcmi *dcmi = notifier_to_dcmi(notifier); in dcmi_graph_notify_unbind() local
1807 dev_dbg(dcmi->dev, "Removing %s\n", video_device_node_name(dcmi->vdev)); in dcmi_graph_notify_unbind()
1810 video_unregister_device(dcmi->vdev); in dcmi_graph_notify_unbind()
1817 struct stm32_dcmi *dcmi = notifier_to_dcmi(notifier); in dcmi_graph_notify_bound() local
1821 dev_dbg(dcmi->dev, "Subdev \"%s\" bound\n", subdev->name); in dcmi_graph_notify_bound()
1824 * Link this sub-device to DCMI, it could be in dcmi_graph_notify_bound()
1832 &dcmi->vdev->entity, 0, in dcmi_graph_notify_bound()
1836 dev_err(dcmi->dev, "Failed to create media pad link with subdev \"%s\"\n", in dcmi_graph_notify_bound()
1839 dev_dbg(dcmi->dev, "DCMI is now linked to \"%s\"\n", in dcmi_graph_notify_bound()
1842 dcmi->s_subdev = subdev; in dcmi_graph_notify_bound()
1853 static int dcmi_graph_init(struct stm32_dcmi *dcmi) in dcmi_graph_init() argument
1859 ep = of_graph_get_next_endpoint(dcmi->dev->of_node, NULL); in dcmi_graph_init()
1861 dev_err(dcmi->dev, "Failed to get next endpoint\n"); in dcmi_graph_init()
1865 v4l2_async_nf_init(&dcmi->notifier, &dcmi->v4l2_dev); in dcmi_graph_init()
1867 asd = v4l2_async_nf_add_fwnode_remote(&dcmi->notifier, in dcmi_graph_init()
1874 dev_err(dcmi->dev, "Failed to add subdev notifier\n"); in dcmi_graph_init()
1878 dcmi->notifier.ops = &dcmi_graph_notify_ops; in dcmi_graph_init()
1880 ret = v4l2_async_nf_register(&dcmi->notifier); in dcmi_graph_init()
1882 dev_err(dcmi->dev, "Failed to register notifier\n"); in dcmi_graph_init()
1883 v4l2_async_nf_cleanup(&dcmi->notifier); in dcmi_graph_init()
1895 struct stm32_dcmi *dcmi; in dcmi_probe() local
1908 dcmi = devm_kzalloc(&pdev->dev, sizeof(struct stm32_dcmi), GFP_KERNEL); in dcmi_probe()
1909 if (!dcmi) in dcmi_probe()
1912 dcmi->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL); in dcmi_probe()
1913 if (IS_ERR(dcmi->rstc)) in dcmi_probe()
1914 return dev_err_probe(&pdev->dev, PTR_ERR(dcmi->rstc), in dcmi_probe()
1943 dcmi->bus.flags = ep.bus.parallel.flags; in dcmi_probe()
1944 dcmi->bus.bus_width = ep.bus.parallel.bus_width; in dcmi_probe()
1945 dcmi->bus.data_shift = ep.bus.parallel.data_shift; in dcmi_probe()
1946 dcmi->bus_type = ep.bus_type; in dcmi_probe()
1948 dcmi->irq = platform_get_irq(pdev, 0); in dcmi_probe()
1949 if (dcmi->irq < 0) in dcmi_probe()
1950 return dcmi->irq; in dcmi_probe()
1952 dcmi->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &dcmi->res); in dcmi_probe()
1953 if (IS_ERR(dcmi->regs)) in dcmi_probe()
1954 return PTR_ERR(dcmi->regs); in dcmi_probe()
1966 dcmi->dma_max_burst = UINT_MAX; in dcmi_probe()
1969 dcmi->dma_max_burst = caps.max_sg_burst * DMA_SLAVE_BUSWIDTH_4_BYTES; in dcmi_probe()
1971 spin_lock_init(&dcmi->irqlock); in dcmi_probe()
1972 mutex_init(&dcmi->lock); in dcmi_probe()
1973 mutex_init(&dcmi->dma_lock); in dcmi_probe()
1974 init_completion(&dcmi->complete); in dcmi_probe()
1975 INIT_LIST_HEAD(&dcmi->buffers); in dcmi_probe()
1977 dcmi->dev = &pdev->dev; in dcmi_probe()
1978 dcmi->mclk = mclk; in dcmi_probe()
1979 dcmi->state = STOPPED; in dcmi_probe()
1980 dcmi->dma_chan = chan; in dcmi_probe()
1982 q = &dcmi->queue; in dcmi_probe()
1984 dcmi->v4l2_dev.mdev = &dcmi->mdev; in dcmi_probe()
1987 strscpy(dcmi->mdev.model, DRV_NAME, sizeof(dcmi->mdev.model)); in dcmi_probe()
1988 dcmi->mdev.dev = &pdev->dev; in dcmi_probe()
1989 media_device_init(&dcmi->mdev); in dcmi_probe()
1992 ret = v4l2_device_register(&pdev->dev, &dcmi->v4l2_dev); in dcmi_probe()
1996 dcmi->vdev = video_device_alloc(); in dcmi_probe()
1997 if (!dcmi->vdev) { in dcmi_probe()
2003 dcmi->vdev->fops = &dcmi_fops; in dcmi_probe()
2004 dcmi->vdev->v4l2_dev = &dcmi->v4l2_dev; in dcmi_probe()
2005 dcmi->vdev->queue = &dcmi->queue; in dcmi_probe()
2006 strscpy(dcmi->vdev->name, KBUILD_MODNAME, sizeof(dcmi->vdev->name)); in dcmi_probe()
2007 dcmi->vdev->release = video_device_release; in dcmi_probe()
2008 dcmi->vdev->ioctl_ops = &dcmi_ioctl_ops; in dcmi_probe()
2009 dcmi->vdev->lock = &dcmi->lock; in dcmi_probe()
2010 dcmi->vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | in dcmi_probe()
2012 video_set_drvdata(dcmi->vdev, dcmi); in dcmi_probe()
2015 dcmi->vid_cap_pad.flags = MEDIA_PAD_FL_SINK; in dcmi_probe()
2016 ret = media_entity_pads_init(&dcmi->vdev->entity, in dcmi_probe()
2017 1, &dcmi->vid_cap_pad); in dcmi_probe()
2019 dev_err(dcmi->dev, "Failed to init media entity pad\n"); in dcmi_probe()
2022 dcmi->vdev->entity.flags |= MEDIA_ENT_FL_DEFAULT; in dcmi_probe()
2024 ret = video_register_device(dcmi->vdev, VFL_TYPE_VIDEO, -1); in dcmi_probe()
2026 dev_err(dcmi->dev, "Failed to register video device\n"); in dcmi_probe()
2030 dev_dbg(dcmi->dev, "Device registered as %s\n", in dcmi_probe()
2031 video_device_node_name(dcmi->vdev)); in dcmi_probe()
2036 q->lock = &dcmi->lock; in dcmi_probe()
2037 q->drv_priv = dcmi; in dcmi_probe()
2052 ret = dcmi_graph_init(dcmi); in dcmi_probe()
2057 ret = reset_control_assert(dcmi->rstc); in dcmi_probe()
2065 ret = reset_control_deassert(dcmi->rstc); in dcmi_probe()
2073 platform_set_drvdata(pdev, dcmi); in dcmi_probe()
2080 v4l2_async_nf_cleanup(&dcmi->notifier); in dcmi_probe()
2082 media_entity_cleanup(&dcmi->vdev->entity); in dcmi_probe()
2084 video_device_release(dcmi->vdev); in dcmi_probe()
2086 v4l2_device_unregister(&dcmi->v4l2_dev); in dcmi_probe()
2088 media_device_cleanup(&dcmi->mdev); in dcmi_probe()
2089 dma_release_channel(dcmi->dma_chan); in dcmi_probe()
2096 struct stm32_dcmi *dcmi = platform_get_drvdata(pdev); in dcmi_remove() local
2100 v4l2_async_nf_unregister(&dcmi->notifier); in dcmi_remove()
2101 v4l2_async_nf_cleanup(&dcmi->notifier); in dcmi_remove()
2102 media_entity_cleanup(&dcmi->vdev->entity); in dcmi_remove()
2103 v4l2_device_unregister(&dcmi->v4l2_dev); in dcmi_remove()
2104 media_device_cleanup(&dcmi->mdev); in dcmi_remove()
2106 dma_release_channel(dcmi->dma_chan); in dcmi_remove()
2111 struct stm32_dcmi *dcmi = dev_get_drvdata(dev); in dcmi_runtime_suspend() local
2113 clk_disable_unprepare(dcmi->mclk); in dcmi_runtime_suspend()
2120 struct stm32_dcmi *dcmi = dev_get_drvdata(dev); in dcmi_runtime_resume() local
2123 ret = clk_prepare_enable(dcmi->mclk); in dcmi_runtime_resume()