diff options
Diffstat (limited to 'drivers/media/platform/marvell-ccic/mcam-core.c')
| -rw-r--r-- | drivers/media/platform/marvell-ccic/mcam-core.c | 480 |
1 files changed, 179 insertions, 301 deletions
diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c index 110fd70c7326..5e2b4df48b3c 100644 --- a/drivers/media/platform/marvell-ccic/mcam-core.c +++ b/drivers/media/platform/marvell-ccic/mcam-core.c @@ -24,6 +24,7 @@ #include <media/v4l2-device.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-ctrls.h> +#include <media/v4l2-event.h> #include <media/ov7670.h> #include <media/videobuf2-vmalloc.h> #include <media/videobuf2-dma-contig.h> @@ -123,29 +124,22 @@ static struct mcam_format_struct { .planar = false, }, { - .desc = "YUV 4:2:2 PLANAR", - .pixelformat = V4L2_PIX_FMT_YUV422P, - .mbus_code = MEDIA_BUS_FMT_YUYV8_2X8, - .bpp = 2, - .planar = true, - }, - { .desc = "YUV 4:2:0 PLANAR", .pixelformat = V4L2_PIX_FMT_YUV420, .mbus_code = MEDIA_BUS_FMT_YUYV8_2X8, - .bpp = 2, + .bpp = 1, .planar = true, }, { .desc = "YVU 4:2:0 PLANAR", .pixelformat = V4L2_PIX_FMT_YVU420, .mbus_code = MEDIA_BUS_FMT_YUYV8_2X8, - .bpp = 2, + .bpp = 1, .planar = true, }, { - .desc = "RGB 444", - .pixelformat = V4L2_PIX_FMT_RGB444, + .desc = "XRGB 444", + .pixelformat = V4L2_PIX_FMT_XRGB444, .mbus_code = MEDIA_BUS_FMT_RGB444_2X8_PADHI_LE, .bpp = 2, .planar = false, @@ -188,6 +182,7 @@ static const struct v4l2_pix_format mcam_def_pix_format = { .field = V4L2_FIELD_NONE, .bytesperline = VGA_WIDTH*2, .sizeimage = VGA_WIDTH*VGA_HEIGHT*2, + .colorspace = V4L2_COLORSPACE_SRGB, }; static const u32 mcam_def_mbus_code = MEDIA_BUS_FMT_YUYV8_2X8; @@ -204,12 +199,6 @@ struct mcam_dma_desc { u32 segment_len; }; -struct yuv_pointer_t { - dma_addr_t y; - dma_addr_t u; - dma_addr_t v; -}; - /* * Our buffer type for working with videobuf2. Note that the vb2 * developers have decreed that struct vb2_buffer must be at the @@ -221,7 +210,6 @@ struct mcam_vb_buffer { struct mcam_dma_desc *dma_desc; /* Descriptor virtual address */ dma_addr_t dma_desc_pa; /* Descriptor physical address */ int dma_desc_nent; /* Number of mapped descriptors */ - struct yuv_pointer_t yuv_p; }; static inline struct mcam_vb_buffer *vb_to_mvb(struct vb2_buffer *vb) @@ -237,6 +225,8 @@ static void mcam_buffer_done(struct mcam_camera *cam, int frame, { vbuf->v4l2_buf.bytesused = cam->pix_format.sizeimage; vbuf->v4l2_buf.sequence = cam->buf_seq[frame]; + vbuf->v4l2_buf.field = V4L2_FIELD_NONE; + v4l2_get_timestamp(&vbuf->v4l2_buf.timestamp); vb2_set_plane_payload(vbuf, 0, cam->pix_format.sizeimage); vb2_buffer_done(vbuf, VB2_BUF_STATE_DONE); } @@ -337,6 +327,43 @@ static void mcam_disable_mipi(struct mcam_camera *mcam) mcam->mipi_enabled = false; } +static bool mcam_fmt_is_planar(__u32 pfmt) +{ + struct mcam_format_struct *f; + + f = mcam_find_format(pfmt); + return f->planar; +} + +static void mcam_write_yuv_bases(struct mcam_camera *cam, + unsigned frame, dma_addr_t base) +{ + struct v4l2_pix_format *fmt = &cam->pix_format; + u32 pixel_count = fmt->width * fmt->height; + dma_addr_t y, u = 0, v = 0; + + y = base; + + switch (fmt->pixelformat) { + case V4L2_PIX_FMT_YUV420: + u = y + pixel_count; + v = u + pixel_count / 4; + break; + case V4L2_PIX_FMT_YVU420: + v = y + pixel_count; + u = v + pixel_count / 4; + break; + default: + break; + } + + mcam_reg_write(cam, REG_Y0BAR + frame * 4, y); + if (mcam_fmt_is_planar(fmt->pixelformat)) { + mcam_reg_write(cam, REG_U0BAR + frame * 4, u); + mcam_reg_write(cam, REG_V0BAR + frame * 4, v); + } +} + /* ------------------------------------------------------------------- */ #ifdef MCAM_MODE_VMALLOC @@ -407,15 +434,14 @@ static void mcam_free_dma_bufs(struct mcam_camera *cam) static void mcam_ctlr_dma_vmalloc(struct mcam_camera *cam) { /* - * Store the first two Y buffers (we aren't supporting - * planar formats for now, so no UV bufs). Then either + * Store the first two YUV buffers. Then either * set the third if it exists, or tell the controller * to just use two. */ - mcam_reg_write(cam, REG_Y0BAR, cam->dma_handles[0]); - mcam_reg_write(cam, REG_Y1BAR, cam->dma_handles[1]); + mcam_write_yuv_bases(cam, 0, cam->dma_handles[0]); + mcam_write_yuv_bases(cam, 1, cam->dma_handles[1]); if (cam->nbufs > 2) { - mcam_reg_write(cam, REG_Y2BAR, cam->dma_handles[2]); + mcam_write_yuv_bases(cam, 2, cam->dma_handles[2]); mcam_reg_clear_bit(cam, REG_CTRL1, C1_TWOBUFS); } else mcam_reg_set_bit(cam, REG_CTRL1, C1_TWOBUFS); @@ -510,14 +536,6 @@ static inline int mcam_check_dma_buffers(struct mcam_camera *cam) * DMA-contiguous code. */ -static bool mcam_fmt_is_planar(__u32 pfmt) -{ - struct mcam_format_struct *f; - - f = mcam_find_format(pfmt); - return f->planar; -} - /* * Set up a contiguous buffer for the given frame. Here also is where * the underrun strategy is set: if there is no buffer available, reuse @@ -529,9 +547,7 @@ static bool mcam_fmt_is_planar(__u32 pfmt) static void mcam_set_contig_buffer(struct mcam_camera *cam, int frame) { struct mcam_vb_buffer *buf; - struct v4l2_pix_format *fmt = &cam->pix_format; dma_addr_t dma_handle; - u32 pixel_count = fmt->width * fmt->height; struct vb2_buffer *vb; /* @@ -555,32 +571,7 @@ static void mcam_set_contig_buffer(struct mcam_camera *cam, int frame) vb = &buf->vb_buf; dma_handle = vb2_dma_contig_plane_dma_addr(vb, 0); - buf->yuv_p.y = dma_handle; - - switch (cam->pix_format.pixelformat) { - case V4L2_PIX_FMT_YUV422P: - buf->yuv_p.u = buf->yuv_p.y + pixel_count; - buf->yuv_p.v = buf->yuv_p.u + pixel_count / 2; - break; - case V4L2_PIX_FMT_YUV420: - buf->yuv_p.u = buf->yuv_p.y + pixel_count; - buf->yuv_p.v = buf->yuv_p.u + pixel_count / 4; - break; - case V4L2_PIX_FMT_YVU420: - buf->yuv_p.v = buf->yuv_p.y + pixel_count; - buf->yuv_p.u = buf->yuv_p.v + pixel_count / 4; - break; - default: - break; - } - - mcam_reg_write(cam, frame == 0 ? REG_Y0BAR : REG_Y1BAR, buf->yuv_p.y); - if (mcam_fmt_is_planar(fmt->pixelformat)) { - mcam_reg_write(cam, frame == 0 ? - REG_U0BAR : REG_U1BAR, buf->yuv_p.u); - mcam_reg_write(cam, frame == 0 ? - REG_V0BAR : REG_V1BAR, buf->yuv_p.v); - } + mcam_write_yuv_bases(cam, frame, dma_handle); } /* @@ -603,6 +594,7 @@ static void mcam_dma_contig_done(struct mcam_camera *cam, int frame) if (!test_bit(CF_SINGLE_BUFFER, &cam->flags)) { cam->frame_state.delivered++; + cam->vb_bufs[frame] = NULL; mcam_buffer_done(cam, frame, &buf->vb_buf); } mcam_set_contig_buffer(cam, frame); @@ -752,12 +744,6 @@ static void mcam_ctlr_image(struct mcam_camera *cam) widthy = fmt->width * 2; widthuv = 0; break; - case V4L2_PIX_FMT_JPEG: - imgsz_h = (fmt->sizeimage / fmt->bytesperline) << IMGSZ_V_SHIFT; - widthy = fmt->bytesperline; - widthuv = 0; - break; - case V4L2_PIX_FMT_YUV422P: case V4L2_PIX_FMT_YUV420: case V4L2_PIX_FMT_YVU420: widthy = fmt->width; @@ -766,6 +752,7 @@ static void mcam_ctlr_image(struct mcam_camera *cam) default: widthy = fmt->bytesperline; widthuv = 0; + break; } mcam_reg_write_mask(cam, REG_IMGPITCH, widthuv << 16 | widthy, @@ -777,10 +764,6 @@ static void mcam_ctlr_image(struct mcam_camera *cam) * Tell the controller about the image format we are using. */ switch (fmt->pixelformat) { - case V4L2_PIX_FMT_YUV422P: - mcam_reg_write_mask(cam, REG_CTRL0, - C0_DF_YUV | C0_YUV_PLANAR | C0_YUVE_YVYU, C0_DF_MASK); - break; case V4L2_PIX_FMT_YUV420: case V4L2_PIX_FMT_YVU420: mcam_reg_write_mask(cam, REG_CTRL0, @@ -794,19 +777,18 @@ static void mcam_ctlr_image(struct mcam_camera *cam) mcam_reg_write_mask(cam, REG_CTRL0, C0_DF_YUV | C0_YUV_PACKED | C0_YUVE_SWAP24, C0_DF_MASK); break; - case V4L2_PIX_FMT_JPEG: - mcam_reg_write_mask(cam, REG_CTRL0, - C0_DF_YUV | C0_YUV_PACKED | C0_YUVE_YUYV, C0_DF_MASK); - break; - case V4L2_PIX_FMT_RGB444: + case V4L2_PIX_FMT_XRGB444: mcam_reg_write_mask(cam, REG_CTRL0, - C0_DF_RGB | C0_RGBF_444 | C0_RGB4_XRGB, C0_DF_MASK); - /* Alpha value? */ + C0_DF_RGB | C0_RGBF_444 | C0_RGB4_XBGR, C0_DF_MASK); break; case V4L2_PIX_FMT_RGB565: mcam_reg_write_mask(cam, REG_CTRL0, C0_DF_RGB | C0_RGBF_565 | C0_RGB5_BGGR, C0_DF_MASK); break; + case V4L2_PIX_FMT_SBGGR8: + mcam_reg_write_mask(cam, REG_CTRL0, + C0_DF_RGB | C0_RGB5_GRBG, C0_DF_MASK); + break; default: cam_err(cam, "camera: unknown format: %#x\n", fmt->pixelformat); break; @@ -969,7 +951,6 @@ static int mcam_cam_init(struct mcam_camera *cam) { int ret; - mutex_lock(&cam->s_mutex); if (cam->state != S_NOTREADY) cam_warn(cam, "Cam init with device in funky state %d", cam->state); @@ -977,7 +958,6 @@ static int mcam_cam_init(struct mcam_camera *cam) /* Get/set parameters? */ cam->state = S_IDLE; mcam_ctlr_power_down(cam); - mutex_unlock(&cam->s_mutex); return ret; } @@ -998,13 +978,15 @@ static int mcam_cam_set_flip(struct mcam_camera *cam) static int mcam_cam_configure(struct mcam_camera *cam) { - struct v4l2_mbus_framefmt mbus_fmt; + struct v4l2_subdev_format format = { + .which = V4L2_SUBDEV_FORMAT_ACTIVE, + }; int ret; - v4l2_fill_mbus_format(&mbus_fmt, &cam->pix_format, cam->mbus_code); + v4l2_fill_mbus_format(&format.format, &cam->pix_format, cam->mbus_code); ret = sensor_call(cam, core, init, 0); if (ret == 0) - ret = sensor_call(cam, video, s_mbus_fmt, &mbus_fmt); + ret = sensor_call(cam, pad, set_fmt, NULL, &format); /* * OV7670 does weird things if flip is set *before* format... */ @@ -1073,7 +1055,9 @@ static int mcam_vb_queue_setup(struct vb2_queue *vq, struct mcam_camera *cam = vb2_get_drv_priv(vq); int minbufs = (cam->buffer_mode == B_DMA_contig) ? 3 : 2; - sizes[0] = cam->pix_format.sizeimage; + if (fmt && fmt->fmt.pix.sizeimage < cam->pix_format.sizeimage) + return -EINVAL; + sizes[0] = fmt ? fmt->fmt.pix.sizeimage : cam->pix_format.sizeimage; *num_planes = 1; /* Someday we have to support planar formats... */ if (*nbufs < minbufs) *nbufs = minbufs; @@ -1102,6 +1086,30 @@ static void mcam_vb_buf_queue(struct vb2_buffer *vb) mcam_read_setup(cam); } +static void mcam_vb_requeue_bufs(struct vb2_queue *vq, + enum vb2_buffer_state state) +{ + struct mcam_camera *cam = vb2_get_drv_priv(vq); + struct mcam_vb_buffer *buf, *node; + unsigned long flags; + unsigned i; + + spin_lock_irqsave(&cam->dev_lock, flags); + list_for_each_entry_safe(buf, node, &cam->buffers, queue) { + vb2_buffer_done(&buf->vb_buf, state); + list_del(&buf->queue); + } + for (i = 0; i < MAX_DMA_BUFS; i++) { + buf = cam->vb_bufs[i]; + + if (buf) { + vb2_buffer_done(&buf->vb_buf, state); + cam->vb_bufs[i] = NULL; + } + } + spin_unlock_irqrestore(&cam->dev_lock, flags); +} + /* * These need to be called with the mutex held from vb2 */ @@ -1109,11 +1117,15 @@ static int mcam_vb_start_streaming(struct vb2_queue *vq, unsigned int count) { struct mcam_camera *cam = vb2_get_drv_priv(vq); unsigned int frame; + int ret; if (cam->state != S_IDLE) { - INIT_LIST_HEAD(&cam->buffers); + mcam_vb_requeue_bufs(vq, VB2_BUF_STATE_QUEUED); return -EINVAL; } + cam->frame_state.frames = 0; + cam->frame_state.singles = 0; + cam->frame_state.delivered = 0; cam->sequence = 0; /* * Videobuf2 sneakily hoards all the buffers and won't @@ -1134,14 +1146,19 @@ static int mcam_vb_start_streaming(struct vb2_queue *vq, unsigned int count) for (frame = 0; frame < cam->nbufs; frame++) clear_bit(CF_FRAME_SOF0 + frame, &cam->flags); - return mcam_read_setup(cam); + ret = mcam_read_setup(cam); + if (ret) + mcam_vb_requeue_bufs(vq, VB2_BUF_STATE_QUEUED); + return ret; } static void mcam_vb_stop_streaming(struct vb2_queue *vq) { struct mcam_camera *cam = vb2_get_drv_priv(vq); - unsigned long flags; + cam_dbg(cam, "stop_streaming: %d frames, %d singles, %d delivered\n", + cam->frame_state.frames, cam->frame_state.singles, + cam->frame_state.delivered); if (cam->state == S_BUFWAIT) { /* They never gave us buffers */ cam->state = S_IDLE; @@ -1160,9 +1177,7 @@ static void mcam_vb_stop_streaming(struct vb2_queue *vq) * VB2 reclaims the buffers, so we need to forget * about them. */ - spin_lock_irqsave(&cam->dev_lock, flags); - INIT_LIST_HEAD(&cam->buffers); - spin_unlock_irqrestore(&cam->dev_lock, flags); + mcam_vb_requeue_bufs(vq, VB2_BUF_STATE_ERROR); } @@ -1246,14 +1261,15 @@ static int mcam_setup_vb2(struct mcam_camera *cam) vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; vq->drv_priv = cam; vq->lock = &cam->s_mutex; + vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ; + vq->buf_struct_size = sizeof(struct mcam_vb_buffer); INIT_LIST_HEAD(&cam->buffers); switch (cam->buffer_mode) { case B_DMA_contig: #ifdef MCAM_MODE_DMA_CONTIG vq->ops = &mcam_vb2_ops; vq->mem_ops = &vb2_dma_contig_memops; - vq->buf_struct_size = sizeof(struct mcam_vb_buffer); - vq->io_modes = VB2_MMAP | VB2_USERPTR; cam->dma_setup = mcam_ctlr_dma_contig; cam->frame_complete = mcam_dma_contig_done; cam->vb_alloc_ctx = vb2_dma_contig_init_ctx(cam->dev); @@ -1265,8 +1281,6 @@ static int mcam_setup_vb2(struct mcam_camera *cam) #ifdef MCAM_MODE_DMA_SG vq->ops = &mcam_vb2_sg_ops; vq->mem_ops = &vb2_dma_sg_memops; - vq->buf_struct_size = sizeof(struct mcam_vb_buffer); - vq->io_modes = VB2_MMAP | VB2_USERPTR; cam->dma_setup = mcam_ctlr_dma_sg; cam->frame_complete = mcam_dma_sg_done; cam->vb_alloc_ctx_sg = vb2_dma_sg_init_ctx(cam->dev); @@ -1280,8 +1294,6 @@ static int mcam_setup_vb2(struct mcam_camera *cam) (unsigned long) cam); vq->ops = &mcam_vb2_ops; vq->mem_ops = &vb2_vmalloc_memops; - vq->buf_struct_size = sizeof(struct mcam_vb_buffer); - vq->io_modes = VB2_MMAP; cam->dma_setup = mcam_ctlr_dma_vmalloc; cam->frame_complete = mcam_vmalloc_done; #endif @@ -1292,7 +1304,6 @@ static int mcam_setup_vb2(struct mcam_camera *cam) static void mcam_cleanup_vb2(struct mcam_camera *cam) { - vb2_queue_release(&cam->vb_queue); #ifdef MCAM_MODE_DMA_CONTIG if (cam->buffer_mode == B_DMA_contig) vb2_dma_contig_cleanup_ctx(cam->vb_alloc_ctx); @@ -1309,86 +1320,14 @@ static void mcam_cleanup_vb2(struct mcam_camera *cam) * The long list of V4L2 ioctl() operations. */ -static int mcam_vidioc_streamon(struct file *filp, void *priv, - enum v4l2_buf_type type) -{ - struct mcam_camera *cam = filp->private_data; - int ret; - - mutex_lock(&cam->s_mutex); - ret = vb2_streamon(&cam->vb_queue, type); - mutex_unlock(&cam->s_mutex); - return ret; -} - - -static int mcam_vidioc_streamoff(struct file *filp, void *priv, - enum v4l2_buf_type type) -{ - struct mcam_camera *cam = filp->private_data; - int ret; - - mutex_lock(&cam->s_mutex); - ret = vb2_streamoff(&cam->vb_queue, type); - mutex_unlock(&cam->s_mutex); - return ret; -} - - -static int mcam_vidioc_reqbufs(struct file *filp, void *priv, - struct v4l2_requestbuffers *req) -{ - struct mcam_camera *cam = filp->private_data; - int ret; - - mutex_lock(&cam->s_mutex); - ret = vb2_reqbufs(&cam->vb_queue, req); - mutex_unlock(&cam->s_mutex); - return ret; -} - - -static int mcam_vidioc_querybuf(struct file *filp, void *priv, - struct v4l2_buffer *buf) -{ - struct mcam_camera *cam = filp->private_data; - int ret; - - mutex_lock(&cam->s_mutex); - ret = vb2_querybuf(&cam->vb_queue, buf); - mutex_unlock(&cam->s_mutex); - return ret; -} - -static int mcam_vidioc_qbuf(struct file *filp, void *priv, - struct v4l2_buffer *buf) -{ - struct mcam_camera *cam = filp->private_data; - int ret; - - mutex_lock(&cam->s_mutex); - ret = vb2_qbuf(&cam->vb_queue, buf); - mutex_unlock(&cam->s_mutex); - return ret; -} - -static int mcam_vidioc_dqbuf(struct file *filp, void *priv, - struct v4l2_buffer *buf) -{ - struct mcam_camera *cam = filp->private_data; - int ret; - - mutex_lock(&cam->s_mutex); - ret = vb2_dqbuf(&cam->vb_queue, buf, filp->f_flags & O_NONBLOCK); - mutex_unlock(&cam->s_mutex); - return ret; -} - static int mcam_vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { + struct mcam_camera *cam = video_drvdata(file); + strcpy(cap->driver, "marvell_ccic"); strcpy(cap->card, "marvell_ccic"); + strlcpy(cap->bus_info, cam->bus_info, sizeof(cap->bus_info)); cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; @@ -1410,36 +1349,38 @@ static int mcam_vidioc_enum_fmt_vid_cap(struct file *filp, static int mcam_vidioc_try_fmt_vid_cap(struct file *filp, void *priv, struct v4l2_format *fmt) { - struct mcam_camera *cam = priv; + struct mcam_camera *cam = video_drvdata(filp); struct mcam_format_struct *f; struct v4l2_pix_format *pix = &fmt->fmt.pix; - struct v4l2_mbus_framefmt mbus_fmt; + struct v4l2_subdev_pad_config pad_cfg; + struct v4l2_subdev_format format = { + .which = V4L2_SUBDEV_FORMAT_TRY, + }; int ret; f = mcam_find_format(pix->pixelformat); pix->pixelformat = f->pixelformat; - v4l2_fill_mbus_format(&mbus_fmt, pix, f->mbus_code); - mutex_lock(&cam->s_mutex); - ret = sensor_call(cam, video, try_mbus_fmt, &mbus_fmt); - mutex_unlock(&cam->s_mutex); - v4l2_fill_pix_format(pix, &mbus_fmt); + v4l2_fill_mbus_format(&format.format, pix, f->mbus_code); + ret = sensor_call(cam, pad, set_fmt, &pad_cfg, &format); + v4l2_fill_pix_format(pix, &format.format); + pix->bytesperline = pix->width * f->bpp; switch (f->pixelformat) { case V4L2_PIX_FMT_YUV420: case V4L2_PIX_FMT_YVU420: - pix->bytesperline = pix->width * 3 / 2; + pix->sizeimage = pix->height * pix->bytesperline * 3 / 2; break; default: - pix->bytesperline = pix->width * f->bpp; + pix->sizeimage = pix->height * pix->bytesperline; break; } - pix->sizeimage = pix->height * pix->bytesperline; + pix->colorspace = V4L2_COLORSPACE_SRGB; return ret; } static int mcam_vidioc_s_fmt_vid_cap(struct file *filp, void *priv, struct v4l2_format *fmt) { - struct mcam_camera *cam = priv; + struct mcam_camera *cam = video_drvdata(filp); struct mcam_format_struct *f; int ret; @@ -1447,7 +1388,7 @@ static int mcam_vidioc_s_fmt_vid_cap(struct file *filp, void *priv, * Can't do anything if the device is not idle * Also can't if there are streaming buffers in place. */ - if (cam->state != S_IDLE || cam->vb_queue.num_buffers > 0) + if (cam->state != S_IDLE || vb2_is_busy(&cam->vb_queue)) return -EBUSY; f = mcam_find_format(fmt->fmt.pix.pixelformat); @@ -1462,7 +1403,6 @@ static int mcam_vidioc_s_fmt_vid_cap(struct file *filp, void *priv, * Now we start to change things for real, so let's do it * under lock. */ - mutex_lock(&cam->s_mutex); cam->pix_format = fmt->fmt.pix; cam->mbus_code = f->mbus_code; @@ -1476,7 +1416,6 @@ static int mcam_vidioc_s_fmt_vid_cap(struct file *filp, void *priv, } mcam_set_config_needed(cam, 1); out: - mutex_unlock(&cam->s_mutex); return ret; } @@ -1488,7 +1427,7 @@ out: static int mcam_vidioc_g_fmt_vid_cap(struct file *filp, void *priv, struct v4l2_format *f) { - struct mcam_camera *cam = priv; + struct mcam_camera *cam = video_drvdata(filp); f->fmt.pix = cam->pix_format; return 0; @@ -1504,7 +1443,6 @@ static int mcam_vidioc_enum_input(struct file *filp, void *priv, return -EINVAL; input->type = V4L2_INPUT_TYPE_CAMERA; - input->std = V4L2_STD_ALL; /* Not sure what should go here */ strcpy(input->name, "Camera"); return 0; } @@ -1522,18 +1460,6 @@ static int mcam_vidioc_s_input(struct file *filp, void *priv, unsigned int i) return 0; } -/* from vivi.c */ -static int mcam_vidioc_s_std(struct file *filp, void *priv, v4l2_std_id a) -{ - return 0; -} - -static int mcam_vidioc_g_std(struct file *filp, void *priv, v4l2_std_id *a) -{ - *a = V4L2_STD_NTSC_M; - return 0; -} - /* * G/S_PARM. Most of this is done by the sensor, but we are * the level which controls the number of read buffers. @@ -1541,12 +1467,10 @@ static int mcam_vidioc_g_std(struct file *filp, void *priv, v4l2_std_id *a) static int mcam_vidioc_g_parm(struct file *filp, void *priv, struct v4l2_streamparm *parms) { - struct mcam_camera *cam = priv; + struct mcam_camera *cam = video_drvdata(filp); int ret; - mutex_lock(&cam->s_mutex); ret = sensor_call(cam, video, g_parm, parms); - mutex_unlock(&cam->s_mutex); parms->parm.capture.readbuffers = n_dma_bufs; return ret; } @@ -1554,12 +1478,10 @@ static int mcam_vidioc_g_parm(struct file *filp, void *priv, static int mcam_vidioc_s_parm(struct file *filp, void *priv, struct v4l2_streamparm *parms) { - struct mcam_camera *cam = priv; + struct mcam_camera *cam = video_drvdata(filp); int ret; - mutex_lock(&cam->s_mutex); ret = sensor_call(cam, video, s_parm, parms); - mutex_unlock(&cam->s_mutex); parms->parm.capture.readbuffers = n_dma_bufs; return ret; } @@ -1567,7 +1489,7 @@ static int mcam_vidioc_s_parm(struct file *filp, void *priv, static int mcam_vidioc_enum_framesizes(struct file *filp, void *priv, struct v4l2_frmsizeenum *sizes) { - struct mcam_camera *cam = priv; + struct mcam_camera *cam = video_drvdata(filp); struct mcam_format_struct *f; struct v4l2_subdev_frame_size_enum fse = { .index = sizes->index, @@ -1579,9 +1501,7 @@ static int mcam_vidioc_enum_framesizes(struct file *filp, void *priv, if (f->pixelformat != sizes->pixel_format) return -EINVAL; fse.code = f->mbus_code; - mutex_lock(&cam->s_mutex); ret = sensor_call(cam, pad, enum_frame_size, NULL, &fse); - mutex_unlock(&cam->s_mutex); if (ret) return ret; if (fse.min_width == fse.max_width && @@ -1604,7 +1524,7 @@ static int mcam_vidioc_enum_framesizes(struct file *filp, void *priv, static int mcam_vidioc_enum_frameintervals(struct file *filp, void *priv, struct v4l2_frmivalenum *interval) { - struct mcam_camera *cam = priv; + struct mcam_camera *cam = video_drvdata(filp); struct mcam_format_struct *f; struct v4l2_subdev_frame_interval_enum fie = { .index = interval->index, @@ -1618,9 +1538,7 @@ static int mcam_vidioc_enum_frameintervals(struct file *filp, void *priv, if (f->pixelformat != interval->pixel_format) return -EINVAL; fie.code = f->mbus_code; - mutex_lock(&cam->s_mutex); ret = sensor_call(cam, pad, enum_frame_interval, NULL, &fie); - mutex_unlock(&cam->s_mutex); if (ret) return ret; interval->type = V4L2_FRMIVAL_TYPE_DISCRETE; @@ -1632,7 +1550,7 @@ static int mcam_vidioc_enum_frameintervals(struct file *filp, void *priv, static int mcam_vidioc_g_register(struct file *file, void *priv, struct v4l2_dbg_register *reg) { - struct mcam_camera *cam = priv; + struct mcam_camera *cam = video_drvdata(file); if (reg->reg > cam->regs_size - 4) return -EINVAL; @@ -1644,7 +1562,7 @@ static int mcam_vidioc_g_register(struct file *file, void *priv, static int mcam_vidioc_s_register(struct file *file, void *priv, const struct v4l2_dbg_register *reg) { - struct mcam_camera *cam = priv; + struct mcam_camera *cam = video_drvdata(file); if (reg->reg > cam->regs_size - 4) return -EINVAL; @@ -1662,18 +1580,20 @@ static const struct v4l2_ioctl_ops mcam_v4l_ioctl_ops = { .vidioc_enum_input = mcam_vidioc_enum_input, .vidioc_g_input = mcam_vidioc_g_input, .vidioc_s_input = mcam_vidioc_s_input, - .vidioc_s_std = mcam_vidioc_s_std, - .vidioc_g_std = mcam_vidioc_g_std, - .vidioc_reqbufs = mcam_vidioc_reqbufs, - .vidioc_querybuf = mcam_vidioc_querybuf, - .vidioc_qbuf = mcam_vidioc_qbuf, - .vidioc_dqbuf = mcam_vidioc_dqbuf, - .vidioc_streamon = mcam_vidioc_streamon, - .vidioc_streamoff = mcam_vidioc_streamoff, + .vidioc_reqbufs = vb2_ioctl_reqbufs, + .vidioc_create_bufs = vb2_ioctl_create_bufs, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_expbuf = vb2_ioctl_expbuf, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, .vidioc_g_parm = mcam_vidioc_g_parm, .vidioc_s_parm = mcam_vidioc_s_parm, .vidioc_enum_framesizes = mcam_vidioc_enum_framesizes, .vidioc_enum_frameintervals = mcam_vidioc_enum_frameintervals, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, #ifdef CONFIG_VIDEO_ADV_DEBUG .vidioc_g_register = mcam_vidioc_g_register, .vidioc_s_register = mcam_vidioc_s_register, @@ -1687,43 +1607,36 @@ static const struct v4l2_ioctl_ops mcam_v4l_ioctl_ops = { static int mcam_v4l_open(struct file *filp) { struct mcam_camera *cam = video_drvdata(filp); - int ret = 0; - - filp->private_data = cam; + int ret; - cam->frame_state.frames = 0; - cam->frame_state.singles = 0; - cam->frame_state.delivered = 0; mutex_lock(&cam->s_mutex); - if (cam->users == 0) { - ret = mcam_setup_vb2(cam); - if (ret) - goto out; + ret = v4l2_fh_open(filp); + if (ret) + goto out; + if (v4l2_fh_is_singular_file(filp)) { ret = mcam_ctlr_power_up(cam); if (ret) goto out; __mcam_cam_reset(cam); mcam_set_config_needed(cam, 1); } - (cam->users)++; out: mutex_unlock(&cam->s_mutex); + if (ret) + v4l2_fh_release(filp); return ret; } static int mcam_v4l_release(struct file *filp) { - struct mcam_camera *cam = filp->private_data; + struct mcam_camera *cam = video_drvdata(filp); + bool last_open; - cam_dbg(cam, "Release, %d frames, %d singles, %d delivered\n", - cam->frame_state.frames, cam->frame_state.singles, - cam->frame_state.delivered); mutex_lock(&cam->s_mutex); - (cam->users)--; - if (cam->users == 0) { - mcam_ctlr_stop_dma(cam); - mcam_cleanup_vb2(cam); + last_open = v4l2_fh_is_singular_file(filp); + _vb2_fop_release(filp, NULL); + if (last_open) { mcam_disable_mipi(cam); mcam_ctlr_power_down(cam); if (cam->buffer_mode == B_vmalloc && alloc_bufs_at_read) @@ -1734,54 +1647,13 @@ static int mcam_v4l_release(struct file *filp) return 0; } -static ssize_t mcam_v4l_read(struct file *filp, - char __user *buffer, size_t len, loff_t *pos) -{ - struct mcam_camera *cam = filp->private_data; - int ret; - - mutex_lock(&cam->s_mutex); - ret = vb2_read(&cam->vb_queue, buffer, len, pos, - filp->f_flags & O_NONBLOCK); - mutex_unlock(&cam->s_mutex); - return ret; -} - - - -static unsigned int mcam_v4l_poll(struct file *filp, - struct poll_table_struct *pt) -{ - struct mcam_camera *cam = filp->private_data; - int ret; - - mutex_lock(&cam->s_mutex); - ret = vb2_poll(&cam->vb_queue, filp, pt); - mutex_unlock(&cam->s_mutex); - return ret; -} - - -static int mcam_v4l_mmap(struct file *filp, struct vm_area_struct *vma) -{ - struct mcam_camera *cam = filp->private_data; - int ret; - - mutex_lock(&cam->s_mutex); - ret = vb2_mmap(&cam->vb_queue, vma); - mutex_unlock(&cam->s_mutex); - return ret; -} - - - static const struct v4l2_file_operations mcam_v4l_fops = { .owner = THIS_MODULE, .open = mcam_v4l_open, .release = mcam_v4l_release, - .read = mcam_v4l_read, - .poll = mcam_v4l_poll, - .mmap = mcam_v4l_mmap, + .read = vb2_fop_read, + .poll = vb2_fop_poll, + .mmap = vb2_fop_mmap, .unlocked_ioctl = video_ioctl2, }; @@ -1792,8 +1664,6 @@ static const struct v4l2_file_operations mcam_v4l_fops = { */ static struct video_device mcam_v4l_template = { .name = "mcam", - .tvnorms = V4L2_STD_NTSC_M, - .fops = &mcam_v4l_fops, .ioctl_ops = &mcam_v4l_ioctl_ops, .release = video_device_release_empty, @@ -1811,7 +1681,7 @@ static void mcam_frame_complete(struct mcam_camera *cam, int frame) set_bit(frame, &cam->flags); clear_bit(CF_DMA_ACTIVE, &cam->flags); cam->next_buf = frame; - cam->buf_seq[frame] = ++(cam->sequence); + cam->buf_seq[frame] = cam->sequence++; cam->frame_state.frames++; /* * "This should never happen" @@ -1924,10 +1794,17 @@ int mccic_register(struct mcam_camera *cam) mcam_set_config_needed(cam, 1); cam->pix_format = mcam_def_pix_format; cam->mbus_code = mcam_def_mbus_code; - INIT_LIST_HEAD(&cam->buffers); mcam_ctlr_init(cam); /* + * Get the v4l2 setup done. + */ + ret = v4l2_ctrl_handler_init(&cam->ctrl_handler, 10); + if (ret) + goto out_unregister; + cam->v4l2_dev.ctrl_handler = &cam->ctrl_handler; + + /* * Try to find the sensor. */ sensor_cfg.clock_speed = cam->clock_speed; @@ -1943,21 +1820,22 @@ int mccic_register(struct mcam_camera *cam) ret = mcam_cam_init(cam); if (ret) goto out_unregister; - /* - * Get the v4l2 setup done. - */ - ret = v4l2_ctrl_handler_init(&cam->ctrl_handler, 10); + + ret = mcam_setup_vb2(cam); if (ret) goto out_unregister; - cam->v4l2_dev.ctrl_handler = &cam->ctrl_handler; mutex_lock(&cam->s_mutex); cam->vdev = mcam_v4l_template; cam->vdev.v4l2_dev = &cam->v4l2_dev; + cam->vdev.lock = &cam->s_mutex; + cam->vdev.queue = &cam->vb_queue; video_set_drvdata(&cam->vdev, cam); ret = video_register_device(&cam->vdev, VFL_TYPE_GRABBER, -1); - if (ret) - goto out; + if (ret) { + mutex_unlock(&cam->s_mutex); + goto out_unregister; + } /* * If so requested, try to get our DMA buffers now. @@ -1968,11 +1846,11 @@ int mccic_register(struct mcam_camera *cam) " will try again later."); } -out: - v4l2_ctrl_handler_free(&cam->ctrl_handler); mutex_unlock(&cam->s_mutex); - return ret; + return 0; + out_unregister: + v4l2_ctrl_handler_free(&cam->ctrl_handler); v4l2_device_unregister(&cam->v4l2_dev); return ret; } @@ -1986,11 +1864,11 @@ void mccic_shutdown(struct mcam_camera *cam) * take it down again will wedge the machine, which is frowned * upon. */ - if (cam->users > 0) { + if (!list_empty(&cam->vdev.fh_list)) { cam_warn(cam, "Removing a device with users!\n"); mcam_ctlr_power_down(cam); } - vb2_queue_release(&cam->vb_queue); + mcam_cleanup_vb2(cam); if (cam->buffer_mode == B_vmalloc) mcam_free_dma_bufs(cam); video_unregister_device(&cam->vdev); @@ -2006,7 +1884,7 @@ void mccic_shutdown(struct mcam_camera *cam) void mccic_suspend(struct mcam_camera *cam) { mutex_lock(&cam->s_mutex); - if (cam->users > 0) { + if (!list_empty(&cam->vdev.fh_list)) { enum mcam_state cstate = cam->state; mcam_ctlr_stop_dma(cam); @@ -2021,7 +1899,7 @@ int mccic_resume(struct mcam_camera *cam) int ret = 0; mutex_lock(&cam->s_mutex); - if (cam->users > 0) { + if (!list_empty(&cam->vdev.fh_list)) { ret = mcam_ctlr_power_up(cam); if (ret) { mutex_unlock(&cam->s_mutex); |