Lines Matching full:dcmi
41 #define DRV_NAME "stm32-dcmi"
43 /* Registers offset for DCMI */
204 static int dcmi_start_capture(struct stm32_dcmi *dcmi, struct dcmi_buf *buf);
206 static void dcmi_buffer_done(struct stm32_dcmi *dcmi, in dcmi_buffer_done() argument
220 vbuf->sequence = dcmi->sequence++; in dcmi_buffer_done()
226 dev_dbg(dcmi->dev, "buffer[%d] done seq=%d, bytesused=%zu\n", in dcmi_buffer_done()
229 dcmi->buffers_count++; in dcmi_buffer_done()
230 dcmi->active = NULL; in dcmi_buffer_done()
233 static int dcmi_restart_capture(struct stm32_dcmi *dcmi) in dcmi_restart_capture() argument
237 spin_lock_irq(&dcmi->irqlock); in dcmi_restart_capture()
239 if (dcmi->state != RUNNING) { in dcmi_restart_capture()
240 spin_unlock_irq(&dcmi->irqlock); in dcmi_restart_capture()
245 if (list_empty(&dcmi->buffers)) { in dcmi_restart_capture()
246 dev_dbg(dcmi->dev, "Capture restart is deferred to next buffer queueing\n"); in dcmi_restart_capture()
247 dcmi->state = WAIT_FOR_BUFFER; in dcmi_restart_capture()
248 spin_unlock_irq(&dcmi->irqlock); in dcmi_restart_capture()
251 buf = list_entry(dcmi->buffers.next, struct dcmi_buf, list); in dcmi_restart_capture()
252 dcmi->active = buf; in dcmi_restart_capture()
254 spin_unlock_irq(&dcmi->irqlock); in dcmi_restart_capture()
256 return dcmi_start_capture(dcmi, buf); in dcmi_restart_capture()
261 struct stm32_dcmi *dcmi = (struct stm32_dcmi *)param; in dcmi_dma_callback() local
264 struct dcmi_buf *buf = dcmi->active; in dcmi_dma_callback()
266 spin_lock_irq(&dcmi->irqlock); in dcmi_dma_callback()
269 status = dmaengine_tx_status(dcmi->dma_chan, dcmi->dma_cookie, &state); in dcmi_dma_callback()
273 dev_dbg(dcmi->dev, "%s: Received DMA_IN_PROGRESS\n", __func__); in dcmi_dma_callback()
276 dev_err(dcmi->dev, "%s: Received DMA_PAUSED\n", __func__); in dcmi_dma_callback()
279 dev_err(dcmi->dev, "%s: Received DMA_ERROR\n", __func__); in dcmi_dma_callback()
282 dcmi_buffer_done(dcmi, buf, 0, -EIO); in dcmi_dma_callback()
285 dev_dbg(dcmi->dev, "%s: Received DMA_COMPLETE\n", __func__); in dcmi_dma_callback()
288 dcmi_buffer_done(dcmi, buf, buf->size, 0); in dcmi_dma_callback()
290 spin_unlock_irq(&dcmi->irqlock); in dcmi_dma_callback()
293 if (dcmi_restart_capture(dcmi)) in dcmi_dma_callback()
294 dev_err(dcmi->dev, "%s: Cannot restart capture on DMA complete\n", in dcmi_dma_callback()
298 dev_err(dcmi->dev, "%s: Received unknown status\n", __func__); in dcmi_dma_callback()
302 spin_unlock_irq(&dcmi->irqlock); in dcmi_dma_callback()
305 static int dcmi_start_dma(struct stm32_dcmi *dcmi, in dcmi_start_dma() argument
314 config.src_addr = (dma_addr_t)dcmi->res->start + DCMI_DR; in dcmi_start_dma()
320 ret = dmaengine_slave_config(dcmi->dma_chan, &config); in dcmi_start_dma()
322 dev_err(dcmi->dev, "%s: DMA channel config failed (%d)\n", in dcmi_start_dma()
332 mutex_lock(&dcmi->dma_lock); in dcmi_start_dma()
335 desc = dmaengine_prep_slave_single(dcmi->dma_chan, buf->paddr, in dcmi_start_dma()
340 dev_err(dcmi->dev, "%s: DMA dmaengine_prep_slave_single failed for buffer phy=%pad size=%zu\n", in dcmi_start_dma()
342 mutex_unlock(&dcmi->dma_lock); in dcmi_start_dma()
348 desc->callback_param = dcmi; in dcmi_start_dma()
351 dcmi->dma_cookie = dmaengine_submit(desc); in dcmi_start_dma()
352 if (dma_submit_error(dcmi->dma_cookie)) { in dcmi_start_dma()
353 dev_err(dcmi->dev, "%s: DMA submission failed\n", __func__); in dcmi_start_dma()
354 mutex_unlock(&dcmi->dma_lock); in dcmi_start_dma()
358 mutex_unlock(&dcmi->dma_lock); in dcmi_start_dma()
360 dma_async_issue_pending(dcmi->dma_chan); in dcmi_start_dma()
365 static int dcmi_start_capture(struct stm32_dcmi *dcmi, struct dcmi_buf *buf) in dcmi_start_capture() argument
372 ret = dcmi_start_dma(dcmi, buf); in dcmi_start_capture()
374 dcmi->errors_count++; in dcmi_start_capture()
379 reg_set(dcmi->regs, DCMI_CR, CR_CAPTURE); in dcmi_start_capture()
384 static void dcmi_set_crop(struct stm32_dcmi *dcmi) in dcmi_set_crop() argument
389 size = ((dcmi->crop.height - 1) << 16) | in dcmi_set_crop()
390 ((dcmi->crop.width << 1) - 1); in dcmi_set_crop()
391 reg_write(dcmi->regs, DCMI_CWSIZE, size); in dcmi_set_crop()
394 start = ((dcmi->crop.top) << 16) | in dcmi_set_crop()
395 ((dcmi->crop.left << 1)); in dcmi_set_crop()
396 reg_write(dcmi->regs, DCMI_CWSTRT, start); in dcmi_set_crop()
398 dev_dbg(dcmi->dev, "Cropping to %ux%u@%u:%u\n", in dcmi_set_crop()
399 dcmi->crop.width, dcmi->crop.height, in dcmi_set_crop()
400 dcmi->crop.left, dcmi->crop.top); in dcmi_set_crop()
403 reg_set(dcmi->regs, DCMI_CR, CR_CROP); in dcmi_set_crop()
406 static void dcmi_process_jpeg(struct stm32_dcmi *dcmi) in dcmi_process_jpeg() argument
410 struct dcmi_buf *buf = dcmi->active; in dcmi_process_jpeg()
426 dmaengine_synchronize(dcmi->dma_chan); in dcmi_process_jpeg()
429 status = dmaengine_tx_status(dcmi->dma_chan, dcmi->dma_cookie, &state); in dcmi_process_jpeg()
432 dcmi_buffer_done(dcmi, buf, buf->size - state.residue, 0); in dcmi_process_jpeg()
434 dcmi->errors_count++; in dcmi_process_jpeg()
435 dev_err(dcmi->dev, "%s: Cannot get JPEG size from DMA\n", in dcmi_process_jpeg()
438 dcmi_buffer_done(dcmi, buf, 0, -EIO); in dcmi_process_jpeg()
442 dmaengine_terminate_all(dcmi->dma_chan); in dcmi_process_jpeg()
445 if (dcmi_restart_capture(dcmi)) in dcmi_process_jpeg()
446 dev_err(dcmi->dev, "%s: Cannot restart capture on JPEG received\n", in dcmi_process_jpeg()
452 struct stm32_dcmi *dcmi = arg; in dcmi_irq_thread() local
454 spin_lock_irq(&dcmi->irqlock); in dcmi_irq_thread()
456 if (dcmi->misr & IT_OVR) { in dcmi_irq_thread()
457 dcmi->overrun_count++; in dcmi_irq_thread()
458 if (dcmi->overrun_count > OVERRUN_ERROR_THRESHOLD) in dcmi_irq_thread()
459 dcmi->errors_count++; in dcmi_irq_thread()
461 if (dcmi->misr & IT_ERR) in dcmi_irq_thread()
462 dcmi->errors_count++; in dcmi_irq_thread()
464 if (dcmi->sd_format->fourcc == V4L2_PIX_FMT_JPEG && in dcmi_irq_thread()
465 dcmi->misr & IT_FRAME) { in dcmi_irq_thread()
467 spin_unlock_irq(&dcmi->irqlock); in dcmi_irq_thread()
468 dcmi_process_jpeg(dcmi); in dcmi_irq_thread()
472 spin_unlock_irq(&dcmi->irqlock); in dcmi_irq_thread()
478 struct stm32_dcmi *dcmi = arg; in dcmi_irq_callback() local
481 spin_lock_irqsave(&dcmi->irqlock, flags); in dcmi_irq_callback()
483 dcmi->misr = reg_read(dcmi->regs, DCMI_MIS); in dcmi_irq_callback()
486 reg_set(dcmi->regs, DCMI_ICR, IT_FRAME | IT_OVR | IT_ERR); in dcmi_irq_callback()
488 spin_unlock_irqrestore(&dcmi->irqlock, flags); in dcmi_irq_callback()
499 struct stm32_dcmi *dcmi = vb2_get_drv_priv(vq); in dcmi_queue_setup() local
502 size = dcmi->fmt.fmt.pix.sizeimage; in dcmi_queue_setup()
511 dev_dbg(dcmi->dev, "Setup queue, count=%d, size=%d\n", in dcmi_queue_setup()
529 struct stm32_dcmi *dcmi = vb2_get_drv_priv(vb->vb2_queue); in dcmi_buf_prepare() local
534 size = dcmi->fmt.fmt.pix.sizeimage; in dcmi_buf_prepare()
537 dev_err(dcmi->dev, "%s data will not fit into plane (%lu < %lu)\n", in dcmi_buf_prepare()
553 dev_dbg(dcmi->dev, "buffer[%d] phy=%pad size=%zu\n", in dcmi_buf_prepare()
562 struct stm32_dcmi *dcmi = vb2_get_drv_priv(vb->vb2_queue); in dcmi_buf_queue() local
566 spin_lock_irq(&dcmi->irqlock); in dcmi_buf_queue()
569 list_add_tail(&buf->list, &dcmi->buffers); in dcmi_buf_queue()
571 if (dcmi->state == WAIT_FOR_BUFFER) { in dcmi_buf_queue()
572 dcmi->state = RUNNING; in dcmi_buf_queue()
573 dcmi->active = buf; in dcmi_buf_queue()
575 dev_dbg(dcmi->dev, "Starting capture on buffer[%d] queued\n", in dcmi_buf_queue()
578 spin_unlock_irq(&dcmi->irqlock); in dcmi_buf_queue()
579 if (dcmi_start_capture(dcmi, buf)) in dcmi_buf_queue()
580 dev_err(dcmi->dev, "%s: Cannot restart capture on overflow or error\n", in dcmi_buf_queue()
585 spin_unlock_irq(&dcmi->irqlock); in dcmi_buf_queue()
588 static struct media_entity *dcmi_find_source(struct stm32_dcmi *dcmi) in dcmi_find_source() argument
590 struct media_entity *entity = &dcmi->vdev->entity; in dcmi_find_source()
609 static int dcmi_pipeline_s_fmt(struct stm32_dcmi *dcmi, in dcmi_pipeline_s_fmt() argument
613 struct media_entity *entity = &dcmi->entity.source->entity; in dcmi_pipeline_s_fmt()
647 dev_dbg(dcmi->dev, "\"%s\":%d pad format set to 0x%x %ux%u\n", in dcmi_pipeline_s_fmt()
654 dev_err(dcmi->dev, "%s: Failed to set format 0x%x %ux%u on \"%s\":%d pad (%d)\n", in dcmi_pipeline_s_fmt()
664 dev_dbg(dcmi->dev, "\"%s\":%d pad format has been changed to 0x%x %ux%u\n", in dcmi_pipeline_s_fmt()
681 static int dcmi_pipeline_s_stream(struct stm32_dcmi *dcmi, int state) in dcmi_pipeline_s_stream() argument
683 struct media_entity *entity = &dcmi->vdev->entity; in dcmi_pipeline_s_stream()
703 dev_err(dcmi->dev, "%s: \"%s\" failed to %s streaming (%d)\n", in dcmi_pipeline_s_stream()
709 dev_dbg(dcmi->dev, "\"%s\" is %s\n", in dcmi_pipeline_s_stream()
716 static int dcmi_pipeline_start(struct stm32_dcmi *dcmi) in dcmi_pipeline_start() argument
718 return dcmi_pipeline_s_stream(dcmi, 1); in dcmi_pipeline_start()
721 static void dcmi_pipeline_stop(struct stm32_dcmi *dcmi) in dcmi_pipeline_stop() argument
723 dcmi_pipeline_s_stream(dcmi, 0); in dcmi_pipeline_stop()
728 struct stm32_dcmi *dcmi = vb2_get_drv_priv(vq); in dcmi_start_streaming() local
733 ret = pm_runtime_get_sync(dcmi->dev); in dcmi_start_streaming()
735 dev_err(dcmi->dev, "%s: Failed to start streaming, cannot get sync (%d)\n", in dcmi_start_streaming()
740 ret = media_pipeline_start(&dcmi->vdev->entity, &dcmi->pipeline); in dcmi_start_streaming()
742 dev_err(dcmi->dev, "%s: Failed to start streaming, media pipeline start error (%d)\n", in dcmi_start_streaming()
747 ret = dcmi_pipeline_start(dcmi); in dcmi_start_streaming()
751 spin_lock_irq(&dcmi->irqlock); in dcmi_start_streaming()
754 switch (dcmi->bus.bus_width) { in dcmi_start_streaming()
770 if (dcmi->bus.flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) in dcmi_start_streaming()
774 if (dcmi->bus.flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) in dcmi_start_streaming()
778 if (dcmi->bus.flags & V4L2_MBUS_PCLK_SAMPLE_RISING) in dcmi_start_streaming()
781 reg_write(dcmi->regs, DCMI_CR, val); in dcmi_start_streaming()
784 if (dcmi->do_crop) in dcmi_start_streaming()
785 dcmi_set_crop(dcmi); in dcmi_start_streaming()
788 if (dcmi->sd_format->fourcc == V4L2_PIX_FMT_JPEG) in dcmi_start_streaming()
789 reg_set(dcmi->regs, DCMI_CR, CR_CM);/* Snapshot mode */ in dcmi_start_streaming()
791 /* Enable dcmi */ in dcmi_start_streaming()
792 reg_set(dcmi->regs, DCMI_CR, CR_ENABLE); in dcmi_start_streaming()
794 dcmi->sequence = 0; in dcmi_start_streaming()
795 dcmi->errors_count = 0; in dcmi_start_streaming()
796 dcmi->overrun_count = 0; in dcmi_start_streaming()
797 dcmi->buffers_count = 0; in dcmi_start_streaming()
803 if (list_empty(&dcmi->buffers)) { in dcmi_start_streaming()
804 dev_dbg(dcmi->dev, "Start streaming is deferred to next buffer queueing\n"); in dcmi_start_streaming()
805 dcmi->state = WAIT_FOR_BUFFER; in dcmi_start_streaming()
806 spin_unlock_irq(&dcmi->irqlock); in dcmi_start_streaming()
810 buf = list_entry(dcmi->buffers.next, struct dcmi_buf, list); in dcmi_start_streaming()
811 dcmi->active = buf; in dcmi_start_streaming()
813 dcmi->state = RUNNING; in dcmi_start_streaming()
815 dev_dbg(dcmi->dev, "Start streaming, starting capture\n"); in dcmi_start_streaming()
817 spin_unlock_irq(&dcmi->irqlock); in dcmi_start_streaming()
818 ret = dcmi_start_capture(dcmi, buf); in dcmi_start_streaming()
820 dev_err(dcmi->dev, "%s: Start streaming failed, cannot start capture\n", in dcmi_start_streaming()
826 if (dcmi->sd_format->fourcc == V4L2_PIX_FMT_JPEG) in dcmi_start_streaming()
827 reg_set(dcmi->regs, DCMI_IER, IT_FRAME | IT_OVR | IT_ERR); in dcmi_start_streaming()
829 reg_set(dcmi->regs, DCMI_IER, IT_OVR | IT_ERR); in dcmi_start_streaming()
834 dcmi_pipeline_stop(dcmi); in dcmi_start_streaming()
837 media_pipeline_stop(&dcmi->vdev->entity); in dcmi_start_streaming()
840 pm_runtime_put(dcmi->dev); in dcmi_start_streaming()
841 spin_lock_irq(&dcmi->irqlock); in dcmi_start_streaming()
846 list_for_each_entry_safe(buf, node, &dcmi->buffers, list) { in dcmi_start_streaming()
850 dcmi->active = NULL; in dcmi_start_streaming()
851 spin_unlock_irq(&dcmi->irqlock); in dcmi_start_streaming()
858 struct stm32_dcmi *dcmi = vb2_get_drv_priv(vq); in dcmi_stop_streaming() local
861 dcmi_pipeline_stop(dcmi); in dcmi_stop_streaming()
863 media_pipeline_stop(&dcmi->vdev->entity); in dcmi_stop_streaming()
865 spin_lock_irq(&dcmi->irqlock); in dcmi_stop_streaming()
868 reg_clear(dcmi->regs, DCMI_IER, IT_FRAME | IT_OVR | IT_ERR); in dcmi_stop_streaming()
870 /* Disable DCMI */ in dcmi_stop_streaming()
871 reg_clear(dcmi->regs, DCMI_CR, CR_ENABLE); in dcmi_stop_streaming()
874 list_for_each_entry_safe(buf, node, &dcmi->buffers, list) { in dcmi_stop_streaming()
879 dcmi->active = NULL; in dcmi_stop_streaming()
880 dcmi->state = STOPPED; in dcmi_stop_streaming()
882 spin_unlock_irq(&dcmi->irqlock); in dcmi_stop_streaming()
885 mutex_lock(&dcmi->dma_lock); in dcmi_stop_streaming()
886 dmaengine_terminate_all(dcmi->dma_chan); in dcmi_stop_streaming()
887 mutex_unlock(&dcmi->dma_lock); in dcmi_stop_streaming()
889 pm_runtime_put(dcmi->dev); in dcmi_stop_streaming()
891 if (dcmi->errors_count) in dcmi_stop_streaming()
892 dev_warn(dcmi->dev, "Some errors found while streaming: errors=%d (overrun=%d), buffers=%d\n", in dcmi_stop_streaming()
893 dcmi->errors_count, dcmi->overrun_count, in dcmi_stop_streaming()
894 dcmi->buffers_count); in dcmi_stop_streaming()
895 dev_dbg(dcmi->dev, "Stop streaming, errors=%d (overrun=%d), buffers=%d\n", in dcmi_stop_streaming()
896 dcmi->errors_count, dcmi->overrun_count, in dcmi_stop_streaming()
897 dcmi->buffers_count); in dcmi_stop_streaming()
914 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_g_fmt_vid_cap() local
916 *fmt = dcmi->fmt; in dcmi_g_fmt_vid_cap()
921 static const struct dcmi_format *find_format_by_fourcc(struct stm32_dcmi *dcmi, in find_format_by_fourcc() argument
924 unsigned int num_formats = dcmi->num_of_sd_formats; in find_format_by_fourcc()
929 fmt = dcmi->sd_formats[i]; in find_format_by_fourcc()
937 static void __find_outer_frame_size(struct stm32_dcmi *dcmi, in __find_outer_frame_size() argument
945 for (i = 0; i < dcmi->num_of_sd_framesizes; i++) { in __find_outer_frame_size()
946 struct dcmi_framesize *fsize = &dcmi->sd_framesizes[i]; in __find_outer_frame_size()
957 match = &dcmi->sd_framesizes[0]; in __find_outer_frame_size()
962 static int dcmi_try_fmt(struct stm32_dcmi *dcmi, struct v4l2_format *f, in dcmi_try_fmt() argument
976 sd_fmt = find_format_by_fourcc(dcmi, pix->pixelformat); in dcmi_try_fmt()
978 if (!dcmi->num_of_sd_formats) in dcmi_try_fmt()
981 sd_fmt = dcmi->sd_formats[dcmi->num_of_sd_formats - 1]; in dcmi_try_fmt()
990 do_crop = dcmi->do_crop && (pix->pixelformat != V4L2_PIX_FMT_JPEG); in dcmi_try_fmt()
992 if (do_crop && dcmi->num_of_sd_framesizes) { in dcmi_try_fmt()
998 __find_outer_frame_size(dcmi, pix, &outer_sd_fsize); in dcmi_try_fmt()
1004 ret = v4l2_subdev_call(dcmi->entity.source, pad, set_fmt, in dcmi_try_fmt()
1017 struct v4l2_rect c = dcmi->crop; in dcmi_try_fmt()
1031 dcmi->crop = c; in dcmi_try_fmt()
1034 pix->width = dcmi->crop.width; in dcmi_try_fmt()
1035 pix->height = dcmi->crop.height; in dcmi_try_fmt()
1050 static int dcmi_set_fmt(struct stm32_dcmi *dcmi, struct v4l2_format *f) in dcmi_set_fmt() argument
1067 ret = dcmi_try_fmt(dcmi, f, &sd_format, &sd_framesize); in dcmi_set_fmt()
1073 dcmi->do_crop = false; in dcmi_set_fmt()
1081 ret = dcmi_pipeline_s_fmt(dcmi, NULL, &format); in dcmi_set_fmt()
1085 dev_dbg(dcmi->dev, "Sensor format set to 0x%x %ux%u\n", in dcmi_set_fmt()
1087 dev_dbg(dcmi->dev, "Buffer format set to %4.4s %ux%u\n", in dcmi_set_fmt()
1091 dcmi->fmt = *f; in dcmi_set_fmt()
1092 dcmi->sd_format = sd_format; in dcmi_set_fmt()
1093 dcmi->sd_framesize = sd_framesize; in dcmi_set_fmt()
1101 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_s_fmt_vid_cap() local
1103 if (vb2_is_streaming(&dcmi->queue)) in dcmi_s_fmt_vid_cap()
1106 return dcmi_set_fmt(dcmi, f); in dcmi_s_fmt_vid_cap()
1112 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_try_fmt_vid_cap() local
1114 return dcmi_try_fmt(dcmi, f, NULL, NULL); in dcmi_try_fmt_vid_cap()
1120 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_enum_fmt_vid_cap() local
1122 if (f->index >= dcmi->num_of_sd_formats) in dcmi_enum_fmt_vid_cap()
1125 f->pixelformat = dcmi->sd_formats[f->index]->fourcc; in dcmi_enum_fmt_vid_cap()
1129 static int dcmi_get_sensor_format(struct stm32_dcmi *dcmi, in dcmi_get_sensor_format() argument
1137 ret = v4l2_subdev_call(dcmi->entity.source, pad, get_fmt, NULL, &fmt); in dcmi_get_sensor_format()
1146 static int dcmi_set_sensor_format(struct stm32_dcmi *dcmi, in dcmi_set_sensor_format() argument
1156 sd_fmt = find_format_by_fourcc(dcmi, pix->pixelformat); in dcmi_set_sensor_format()
1158 if (!dcmi->num_of_sd_formats) in dcmi_set_sensor_format()
1161 sd_fmt = dcmi->sd_formats[dcmi->num_of_sd_formats - 1]; in dcmi_set_sensor_format()
1166 ret = v4l2_subdev_call(dcmi->entity.source, pad, set_fmt, in dcmi_set_sensor_format()
1174 static int dcmi_get_sensor_bounds(struct stm32_dcmi *dcmi, in dcmi_get_sensor_bounds() argument
1189 ret = v4l2_subdev_call(dcmi->entity.source, pad, get_selection, in dcmi_get_sensor_bounds()
1204 for (i = 0; i < dcmi->num_of_sd_framesizes; i++) { in dcmi_get_sensor_bounds()
1205 struct dcmi_framesize *fsize = &dcmi->sd_framesizes[i]; in dcmi_get_sensor_bounds()
1226 ret = dcmi_get_sensor_format(dcmi, &pix); in dcmi_get_sensor_bounds()
1241 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_g_selection() local
1249 s->r = dcmi->sd_bounds; in dcmi_g_selection()
1252 if (dcmi->do_crop) { in dcmi_g_selection()
1253 s->r = dcmi->crop; in dcmi_g_selection()
1257 s->r.width = dcmi->fmt.fmt.pix.width; in dcmi_g_selection()
1258 s->r.height = dcmi->fmt.fmt.pix.height; in dcmi_g_selection()
1271 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_s_selection() local
1281 pix.pixelformat = dcmi->fmt.fmt.pix.pixelformat; in dcmi_s_selection()
1282 pix.width = dcmi->sd_bounds.width; in dcmi_s_selection()
1283 pix.height = dcmi->sd_bounds.height; in dcmi_s_selection()
1284 dcmi_set_sensor_format(dcmi, &pix); in dcmi_s_selection()
1299 if (!(r.top == dcmi->sd_bounds.top && in dcmi_s_selection()
1300 r.left == dcmi->sd_bounds.left && in dcmi_s_selection()
1301 r.width == dcmi->sd_bounds.width && in dcmi_s_selection()
1302 r.height == dcmi->sd_bounds.height)) { in dcmi_s_selection()
1304 dcmi->do_crop = true; in dcmi_s_selection()
1305 dcmi->crop = r; in dcmi_s_selection()
1306 dev_dbg(dcmi->dev, "s_selection: crop %ux%u@(%u,%u) from %ux%u\n", in dcmi_s_selection()
1311 dcmi->do_crop = false; in dcmi_s_selection()
1312 dev_dbg(dcmi->dev, "s_selection: crop is disabled\n"); in dcmi_s_selection()
1325 strscpy(cap->bus_info, "platform:dcmi", sizeof(cap->bus_info)); in dcmi_querycap()
1356 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_enum_framesizes() local
1364 sd_fmt = find_format_by_fourcc(dcmi, fsize->pixel_format); in dcmi_enum_framesizes()
1370 ret = v4l2_subdev_call(dcmi->entity.source, pad, enum_frame_size, in dcmi_enum_framesizes()
1385 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_g_parm() local
1387 return v4l2_g_parm_cap(video_devdata(file), dcmi->entity.source, p); in dcmi_g_parm()
1393 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_s_parm() local
1395 return v4l2_s_parm_cap(video_devdata(file), dcmi->entity.source, p); in dcmi_s_parm()
1401 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_enum_frameintervals() local
1411 sd_fmt = find_format_by_fourcc(dcmi, fival->pixel_format); in dcmi_enum_frameintervals()
1417 ret = v4l2_subdev_call(dcmi->entity.source, pad, in dcmi_enum_frameintervals()
1429 { .compatible = "st,stm32-dcmi"},
1436 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_open() local
1437 struct v4l2_subdev *sd = dcmi->entity.source; in dcmi_open()
1440 if (mutex_lock_interruptible(&dcmi->lock)) in dcmi_open()
1454 ret = dcmi_set_fmt(dcmi, &dcmi->fmt); in dcmi_open()
1461 mutex_unlock(&dcmi->lock); in dcmi_open()
1467 struct stm32_dcmi *dcmi = video_drvdata(file); in dcmi_release() local
1468 struct v4l2_subdev *sd = dcmi->entity.source; in dcmi_release()
1472 mutex_lock(&dcmi->lock); in dcmi_release()
1481 mutex_unlock(&dcmi->lock); in dcmi_release()
1534 static int dcmi_set_default_fmt(struct stm32_dcmi *dcmi) in dcmi_set_default_fmt() argument
1542 .pixelformat = dcmi->sd_formats[0]->fourcc, in dcmi_set_default_fmt()
1547 ret = dcmi_try_fmt(dcmi, &f, NULL, NULL); in dcmi_set_default_fmt()
1550 dcmi->sd_format = dcmi->sd_formats[0]; in dcmi_set_default_fmt()
1551 dcmi->fmt = f; in dcmi_set_default_fmt()
1581 static int dcmi_formats_init(struct stm32_dcmi *dcmi) in dcmi_formats_init() argument
1585 struct v4l2_subdev *subdev = dcmi->entity.source; in dcmi_formats_init()
1601 dev_dbg(dcmi->dev, "Skipping fourcc/code: %4.4s/0x%x\n", in dcmi_formats_init()
1609 dev_dbg(dcmi->dev, "Supported fourcc/code: %4.4s/0x%x\n", in dcmi_formats_init()
1620 dcmi->num_of_sd_formats = num_fmts; in dcmi_formats_init()
1621 dcmi->sd_formats = devm_kcalloc(dcmi->dev, in dcmi_formats_init()
1624 if (!dcmi->sd_formats) { in dcmi_formats_init()
1625 dev_err(dcmi->dev, "Could not allocate memory\n"); in dcmi_formats_init()
1629 memcpy(dcmi->sd_formats, sd_fmts, in dcmi_formats_init()
1631 dcmi->sd_format = dcmi->sd_formats[0]; in dcmi_formats_init()
1636 static int dcmi_framesizes_init(struct stm32_dcmi *dcmi) in dcmi_framesizes_init() argument
1639 struct v4l2_subdev *subdev = dcmi->entity.source; in dcmi_framesizes_init()
1642 .code = dcmi->sd_format->mbus_code, in dcmi_framesizes_init()
1656 dcmi->num_of_sd_framesizes = num_fsize; in dcmi_framesizes_init()
1657 dcmi->sd_framesizes = devm_kcalloc(dcmi->dev, num_fsize, in dcmi_framesizes_init()
1660 if (!dcmi->sd_framesizes) { in dcmi_framesizes_init()
1661 dev_err(dcmi->dev, "Could not allocate memory\n"); in dcmi_framesizes_init()
1666 dev_dbg(dcmi->dev, "Sensor supports %u frame sizes:\n", num_fsize); in dcmi_framesizes_init()
1667 for (i = 0; i < dcmi->num_of_sd_framesizes; i++) { in dcmi_framesizes_init()
1673 dcmi->sd_framesizes[fse.index].width = fse.max_width; in dcmi_framesizes_init()
1674 dcmi->sd_framesizes[fse.index].height = fse.max_height; in dcmi_framesizes_init()
1675 dev_dbg(dcmi->dev, "%ux%u\n", fse.max_width, fse.max_height); in dcmi_framesizes_init()
1683 struct stm32_dcmi *dcmi = notifier_to_dcmi(notifier); in dcmi_graph_notify_complete() local
1691 dcmi->entity.source = in dcmi_graph_notify_complete()
1692 media_entity_to_v4l2_subdev(dcmi_find_source(dcmi)); in dcmi_graph_notify_complete()
1693 if (!dcmi->entity.source) { in dcmi_graph_notify_complete()
1694 dev_err(dcmi->dev, "Source subdevice not found\n"); in dcmi_graph_notify_complete()
1698 dcmi->vdev->ctrl_handler = dcmi->entity.source->ctrl_handler; in dcmi_graph_notify_complete()
1700 ret = dcmi_formats_init(dcmi); in dcmi_graph_notify_complete()
1702 dev_err(dcmi->dev, "No supported mediabus format found\n"); in dcmi_graph_notify_complete()
1706 ret = dcmi_framesizes_init(dcmi); in dcmi_graph_notify_complete()
1708 dev_err(dcmi->dev, "Could not initialize framesizes\n"); in dcmi_graph_notify_complete()
1712 ret = dcmi_get_sensor_bounds(dcmi, &dcmi->sd_bounds); in dcmi_graph_notify_complete()
1714 dev_err(dcmi->dev, "Could not get sensor bounds\n"); in dcmi_graph_notify_complete()
1718 ret = dcmi_set_default_fmt(dcmi); in dcmi_graph_notify_complete()
1720 dev_err(dcmi->dev, "Could not set default format\n"); in dcmi_graph_notify_complete()
1724 ret = devm_request_threaded_irq(dcmi->dev, dcmi->irq, dcmi_irq_callback, in dcmi_graph_notify_complete()
1726 dev_name(dcmi->dev), dcmi); in dcmi_graph_notify_complete()
1728 dev_err(dcmi->dev, "Unable to request irq %d\n", dcmi->irq); in dcmi_graph_notify_complete()
1739 struct stm32_dcmi *dcmi = notifier_to_dcmi(notifier); in dcmi_graph_notify_unbind() local
1741 dev_dbg(dcmi->dev, "Removing %s\n", video_device_node_name(dcmi->vdev)); in dcmi_graph_notify_unbind()
1744 video_unregister_device(dcmi->vdev); in dcmi_graph_notify_unbind()
1751 struct stm32_dcmi *dcmi = notifier_to_dcmi(notifier); in dcmi_graph_notify_bound() local
1755 dev_dbg(dcmi->dev, "Subdev \"%s\" bound\n", subdev->name); in dcmi_graph_notify_bound()
1758 * Link this sub-device to DCMI, it could be in dcmi_graph_notify_bound()
1766 &dcmi->vdev->entity, 0, in dcmi_graph_notify_bound()
1770 dev_err(dcmi->dev, "Failed to create media pad link with subdev \"%s\"\n", in dcmi_graph_notify_bound()
1773 dev_dbg(dcmi->dev, "DCMI is now linked to \"%s\"\n", in dcmi_graph_notify_bound()
1785 static int dcmi_graph_parse(struct stm32_dcmi *dcmi, struct device_node *node) in dcmi_graph_parse() argument
1800 dcmi->entity.remote_node = remote; in dcmi_graph_parse()
1801 dcmi->entity.asd.match_type = V4L2_ASYNC_MATCH_FWNODE; in dcmi_graph_parse()
1802 dcmi->entity.asd.match.fwnode = of_fwnode_handle(remote); in dcmi_graph_parse()
1806 static int dcmi_graph_init(struct stm32_dcmi *dcmi) in dcmi_graph_init() argument
1811 ret = dcmi_graph_parse(dcmi, dcmi->dev->of_node); in dcmi_graph_init()
1813 dev_err(dcmi->dev, "Failed to parse graph\n"); in dcmi_graph_init()
1817 v4l2_async_notifier_init(&dcmi->notifier); in dcmi_graph_init()
1819 ret = v4l2_async_notifier_add_subdev(&dcmi->notifier, in dcmi_graph_init()
1820 &dcmi->entity.asd); in dcmi_graph_init()
1822 dev_err(dcmi->dev, "Failed to add subdev notifier\n"); in dcmi_graph_init()
1823 of_node_put(dcmi->entity.remote_node); in dcmi_graph_init()
1827 dcmi->notifier.ops = &dcmi_graph_notify_ops; in dcmi_graph_init()
1829 ret = v4l2_async_notifier_register(&dcmi->v4l2_dev, &dcmi->notifier); in dcmi_graph_init()
1831 dev_err(dcmi->dev, "Failed to register notifier\n"); in dcmi_graph_init()
1832 v4l2_async_notifier_cleanup(&dcmi->notifier); in dcmi_graph_init()
1844 struct stm32_dcmi *dcmi; in dcmi_probe() local
1857 dcmi = devm_kzalloc(&pdev->dev, sizeof(struct stm32_dcmi), GFP_KERNEL); in dcmi_probe()
1858 if (!dcmi) in dcmi_probe()
1861 dcmi->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL); in dcmi_probe()
1862 if (IS_ERR(dcmi->rstc)) { in dcmi_probe()
1864 return PTR_ERR(dcmi->rstc); in dcmi_probe()
1885 dcmi->bus.flags = ep.bus.parallel.flags; in dcmi_probe()
1886 dcmi->bus.bus_width = ep.bus.parallel.bus_width; in dcmi_probe()
1887 dcmi->bus.data_shift = ep.bus.parallel.data_shift; in dcmi_probe()
1893 dcmi->irq = irq; in dcmi_probe()
1895 dcmi->res = platform_get_resource(pdev, IORESOURCE_MEM, 0); in dcmi_probe()
1896 if (!dcmi->res) { in dcmi_probe()
1901 dcmi->regs = devm_ioremap_resource(&pdev->dev, dcmi->res); in dcmi_probe()
1902 if (IS_ERR(dcmi->regs)) { in dcmi_probe()
1904 return PTR_ERR(dcmi->regs); in dcmi_probe()
1923 spin_lock_init(&dcmi->irqlock); in dcmi_probe()
1924 mutex_init(&dcmi->lock); in dcmi_probe()
1925 mutex_init(&dcmi->dma_lock); in dcmi_probe()
1926 init_completion(&dcmi->complete); in dcmi_probe()
1927 INIT_LIST_HEAD(&dcmi->buffers); in dcmi_probe()
1929 dcmi->dev = &pdev->dev; in dcmi_probe()
1930 dcmi->mclk = mclk; in dcmi_probe()
1931 dcmi->state = STOPPED; in dcmi_probe()
1932 dcmi->dma_chan = chan; in dcmi_probe()
1934 q = &dcmi->queue; in dcmi_probe()
1936 dcmi->v4l2_dev.mdev = &dcmi->mdev; in dcmi_probe()
1939 strscpy(dcmi->mdev.model, DRV_NAME, sizeof(dcmi->mdev.model)); in dcmi_probe()
1940 snprintf(dcmi->mdev.bus_info, sizeof(dcmi->mdev.bus_info), in dcmi_probe()
1942 dcmi->mdev.dev = &pdev->dev; in dcmi_probe()
1943 media_device_init(&dcmi->mdev); in dcmi_probe()
1946 ret = v4l2_device_register(&pdev->dev, &dcmi->v4l2_dev); in dcmi_probe()
1950 dcmi->vdev = video_device_alloc(); in dcmi_probe()
1951 if (!dcmi->vdev) { in dcmi_probe()
1957 dcmi->vdev->fops = &dcmi_fops; in dcmi_probe()
1958 dcmi->vdev->v4l2_dev = &dcmi->v4l2_dev; in dcmi_probe()
1959 dcmi->vdev->queue = &dcmi->queue; in dcmi_probe()
1960 strscpy(dcmi->vdev->name, KBUILD_MODNAME, sizeof(dcmi->vdev->name)); in dcmi_probe()
1961 dcmi->vdev->release = video_device_release; in dcmi_probe()
1962 dcmi->vdev->ioctl_ops = &dcmi_ioctl_ops; in dcmi_probe()
1963 dcmi->vdev->lock = &dcmi->lock; in dcmi_probe()
1964 dcmi->vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | in dcmi_probe()
1966 video_set_drvdata(dcmi->vdev, dcmi); in dcmi_probe()
1969 dcmi->vid_cap_pad.flags = MEDIA_PAD_FL_SINK; in dcmi_probe()
1970 ret = media_entity_pads_init(&dcmi->vdev->entity, in dcmi_probe()
1971 1, &dcmi->vid_cap_pad); in dcmi_probe()
1973 dev_err(dcmi->dev, "Failed to init media entity pad\n"); in dcmi_probe()
1976 dcmi->vdev->entity.flags |= MEDIA_ENT_FL_DEFAULT; in dcmi_probe()
1978 ret = video_register_device(dcmi->vdev, VFL_TYPE_VIDEO, -1); in dcmi_probe()
1980 dev_err(dcmi->dev, "Failed to register video device\n"); in dcmi_probe()
1984 dev_dbg(dcmi->dev, "Device registered as %s\n", in dcmi_probe()
1985 video_device_node_name(dcmi->vdev)); in dcmi_probe()
1990 q->lock = &dcmi->lock; in dcmi_probe()
1991 q->drv_priv = dcmi; in dcmi_probe()
2005 ret = dcmi_graph_init(dcmi); in dcmi_probe()
2010 ret = reset_control_assert(dcmi->rstc); in dcmi_probe()
2018 ret = reset_control_deassert(dcmi->rstc); in dcmi_probe()
2026 platform_set_drvdata(pdev, dcmi); in dcmi_probe()
2033 v4l2_async_notifier_cleanup(&dcmi->notifier); in dcmi_probe()
2035 media_entity_cleanup(&dcmi->vdev->entity); in dcmi_probe()
2037 video_device_release(dcmi->vdev); in dcmi_probe()
2039 v4l2_device_unregister(&dcmi->v4l2_dev); in dcmi_probe()
2041 media_device_cleanup(&dcmi->mdev); in dcmi_probe()
2042 dma_release_channel(dcmi->dma_chan); in dcmi_probe()
2049 struct stm32_dcmi *dcmi = platform_get_drvdata(pdev); in dcmi_remove() local
2053 v4l2_async_notifier_unregister(&dcmi->notifier); in dcmi_remove()
2054 v4l2_async_notifier_cleanup(&dcmi->notifier); in dcmi_remove()
2055 media_entity_cleanup(&dcmi->vdev->entity); in dcmi_remove()
2056 v4l2_device_unregister(&dcmi->v4l2_dev); in dcmi_remove()
2057 media_device_cleanup(&dcmi->mdev); in dcmi_remove()
2059 dma_release_channel(dcmi->dma_chan); in dcmi_remove()
2066 struct stm32_dcmi *dcmi = dev_get_drvdata(dev); in dcmi_runtime_suspend() local
2068 clk_disable_unprepare(dcmi->mclk); in dcmi_runtime_suspend()
2075 struct stm32_dcmi *dcmi = dev_get_drvdata(dev); in dcmi_runtime_resume() local
2078 ret = clk_prepare_enable(dcmi->mclk); in dcmi_runtime_resume()