-s5p-fimc-objs := fimc-core.o fimc-reg.o fimc-capture.o fimc-mdevice.o
+s5p-fimc-objs := fimc-core.o fimc-reg.o fimc-m2m.o fimc-capture.o fimc-mdevice.o
s5p-csis-objs := mipi-csis.o
obj-$(CONFIG_VIDEO_S5P_MIPI_CSIS) += s5p-csis.o
* spinlock held. It updates the camera pixel crop, rotation and
* image flip in H/W.
*/
-int fimc_capture_config_update(struct fimc_ctx *ctx)
+static int fimc_capture_config_update(struct fimc_ctx *ctx)
{
struct fimc_dev *fimc = ctx->fimc_dev;
int ret;
return ret;
}
+void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf)
+{
+ struct fimc_vid_cap *cap = &fimc->vid_cap;
+ struct fimc_vid_buffer *v_buf;
+ struct timeval *tv;
+ struct timespec ts;
+
+ if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) {
+ wake_up(&fimc->irq_queue);
+ goto done;
+ }
+
+ if (!list_empty(&cap->active_buf_q) &&
+ test_bit(ST_CAPT_RUN, &fimc->state) && deq_buf) {
+ ktime_get_real_ts(&ts);
+
+ v_buf = fimc_active_queue_pop(cap);
+
+ tv = &v_buf->vb.v4l2_buf.timestamp;
+ tv->tv_sec = ts.tv_sec;
+ tv->tv_usec = ts.tv_nsec / NSEC_PER_USEC;
+ v_buf->vb.v4l2_buf.sequence = cap->frame_count++;
+
+ vb2_buffer_done(&v_buf->vb, VB2_BUF_STATE_DONE);
+ }
+
+ if (!list_empty(&cap->pending_buf_q)) {
+
+ v_buf = fimc_pending_queue_pop(cap);
+ fimc_hw_set_output_addr(fimc, &v_buf->paddr, cap->buf_index);
+ v_buf->index = cap->buf_index;
+
+ /* Move the buffer to the capture active queue */
+ fimc_active_queue_add(cap, v_buf);
+
+ dbg("next frame: %d, done frame: %d",
+ fimc_hw_get_frame_index(fimc), v_buf->index);
+
+ if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
+ cap->buf_index = 0;
+ }
+
+ if (cap->active_buf_cnt == 0) {
+ if (deq_buf)
+ clear_bit(ST_CAPT_RUN, &fimc->state);
+
+ if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
+ cap->buf_index = 0;
+ } else {
+ set_bit(ST_CAPT_RUN, &fimc->state);
+ }
+
+ fimc_capture_config_update(cap->ctx);
+done:
+ if (cap->active_buf_cnt == 1) {
+ fimc_deactivate_capture(fimc);
+ clear_bit(ST_CAPT_STREAM, &fimc->state);
+ }
+
+ dbg("frame: %d, active_buf_cnt: %d",
+ fimc_hw_get_frame_index(fimc), cap->active_buf_cnt);
+}
+
+
static int start_streaming(struct vb2_queue *q, unsigned int count)
{
struct fimc_ctx *ctx = q->drv_priv;
struct fimc_vid_buffer, list);
vb2_set_plane_payload(&buf->vb, 0, *((u32 *)arg));
}
- fimc_capture_irq_handler(fimc, true);
+ fimc_capture_irq_handler(fimc, 1);
fimc_deactivate_capture(fimc);
spin_unlock_irqrestore(&fimc->slock, irq_flags);
}
/*
- * Samsung S5P/EXYNOS4 SoC series camera interface (video postprocessor) driver
+ * Samsung S5P/EXYNOS4 SoC series FIMC (CAMIF) driver
*
* Copyright (C) 2010-2011 Samsung Electronics Co., Ltd.
* Contact: Sylwester Nawrocki, <s.nawrocki@samsung.com>
},
};
-static unsigned int get_m2m_fmt_flags(unsigned int stream_type)
+struct fimc_fmt * fimc_get_format(unsigned int index)
{
- if (stream_type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
- return FMT_FLAGS_M2M_IN;
- else
- return FMT_FLAGS_M2M_OUT;
+ if (index >= ARRAY_SIZE(fimc_formats))
+ return NULL;
+
+ return &fimc_formats[index];
}
int fimc_check_scaler_ratio(struct fimc_ctx *ctx, int sw, int sh,
return 0;
}
-static void fimc_m2m_job_finish(struct fimc_ctx *ctx, int vb_state)
-{
- struct vb2_buffer *src_vb, *dst_vb;
-
- if (!ctx || !ctx->m2m_ctx)
- return;
-
- src_vb = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
- dst_vb = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
-
- if (src_vb && dst_vb) {
- v4l2_m2m_buf_done(src_vb, vb_state);
- v4l2_m2m_buf_done(dst_vb, vb_state);
- v4l2_m2m_job_finish(ctx->fimc_dev->m2m.m2m_dev,
- ctx->m2m_ctx);
- }
-}
-
-/* Complete the transaction which has been scheduled for execution. */
-static int fimc_m2m_shutdown(struct fimc_ctx *ctx)
-{
- struct fimc_dev *fimc = ctx->fimc_dev;
- int ret;
-
- if (!fimc_m2m_pending(fimc))
- return 0;
-
- fimc_ctx_state_set(FIMC_CTX_SHUT, ctx);
-
- ret = wait_event_timeout(fimc->irq_queue,
- !fimc_ctx_state_is_set(FIMC_CTX_SHUT, ctx),
- FIMC_SHUTDOWN_TIMEOUT);
-
- return ret == 0 ? -ETIMEDOUT : ret;
-}
-
-static int start_streaming(struct vb2_queue *q, unsigned int count)
-{
- struct fimc_ctx *ctx = q->drv_priv;
- int ret;
-
- ret = pm_runtime_get_sync(&ctx->fimc_dev->pdev->dev);
- return ret > 0 ? 0 : ret;
-}
-
-static int stop_streaming(struct vb2_queue *q)
-{
- struct fimc_ctx *ctx = q->drv_priv;
- int ret;
-
- ret = fimc_m2m_shutdown(ctx);
- if (ret == -ETIMEDOUT)
- fimc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
-
- pm_runtime_put(&ctx->fimc_dev->pdev->dev);
- return 0;
-}
-
-void fimc_capture_irq_handler(struct fimc_dev *fimc, bool final)
-{
- struct fimc_vid_cap *cap = &fimc->vid_cap;
- struct fimc_vid_buffer *v_buf;
- struct timeval *tv;
- struct timespec ts;
-
- if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) {
- wake_up(&fimc->irq_queue);
- return;
- }
-
- if (!list_empty(&cap->active_buf_q) &&
- test_bit(ST_CAPT_RUN, &fimc->state) && final) {
- ktime_get_real_ts(&ts);
-
- v_buf = fimc_active_queue_pop(cap);
-
- tv = &v_buf->vb.v4l2_buf.timestamp;
- tv->tv_sec = ts.tv_sec;
- tv->tv_usec = ts.tv_nsec / NSEC_PER_USEC;
- v_buf->vb.v4l2_buf.sequence = cap->frame_count++;
-
- vb2_buffer_done(&v_buf->vb, VB2_BUF_STATE_DONE);
- }
-
- if (!list_empty(&cap->pending_buf_q)) {
-
- v_buf = fimc_pending_queue_pop(cap);
- fimc_hw_set_output_addr(fimc, &v_buf->paddr, cap->buf_index);
- v_buf->index = cap->buf_index;
-
- /* Move the buffer to the capture active queue */
- fimc_active_queue_add(cap, v_buf);
-
- dbg("next frame: %d, done frame: %d",
- fimc_hw_get_frame_index(fimc), v_buf->index);
-
- if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
- cap->buf_index = 0;
- }
-
- if (cap->active_buf_cnt == 0) {
- if (final)
- clear_bit(ST_CAPT_RUN, &fimc->state);
-
- if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
- cap->buf_index = 0;
- } else {
- set_bit(ST_CAPT_RUN, &fimc->state);
- }
-
- fimc_capture_config_update(cap->ctx);
-
- dbg("frame: %d, active_buf_cnt: %d",
- fimc_hw_get_frame_index(fimc), cap->active_buf_cnt);
-}
-
static irqreturn_t fimc_irq_handler(int irq, void *priv)
{
struct fimc_dev *fimc = priv;
- struct fimc_vid_cap *cap = &fimc->vid_cap;
struct fimc_ctx *ctx;
fimc_hw_clear_irq(fimc);
return IRQ_HANDLED;
}
} else if (test_bit(ST_CAPT_PEND, &fimc->state)) {
- fimc_capture_irq_handler(fimc,
- !test_bit(ST_CAPT_JPEG, &fimc->state));
- if (cap->active_buf_cnt == 1) {
- fimc_deactivate_capture(fimc);
- clear_bit(ST_CAPT_STREAM, &fimc->state);
- }
+ int last_buf = test_bit(ST_CAPT_JPEG, &fimc->state) &&
+ fimc->vid_cap.reqbufs_count == 1;
+ fimc_capture_irq_handler(fimc, !last_buf);
}
out:
spin_unlock(&fimc->slock);
f->fmt->color, f->dma_offset.y_h, f->dma_offset.y_v);
}
-static void fimc_dma_run(void *priv)
-{
- struct vb2_buffer *vb = NULL;
- struct fimc_ctx *ctx = priv;
- struct fimc_frame *sf, *df;
- struct fimc_dev *fimc;
- unsigned long flags;
- u32 ret;
-
- if (WARN(!ctx, "null hardware context\n"))
- return;
-
- fimc = ctx->fimc_dev;
- spin_lock_irqsave(&fimc->slock, flags);
- set_bit(ST_M2M_PEND, &fimc->state);
- sf = &ctx->s_frame;
- df = &ctx->d_frame;
-
- if (ctx->state & FIMC_PARAMS) {
- /* Prepare the DMA offsets for scaler */
- fimc_prepare_dma_offset(ctx, sf);
- fimc_prepare_dma_offset(ctx, df);
- }
-
- vb = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
- ret = fimc_prepare_addr(ctx, vb, sf, &sf->paddr);
- if (ret)
- goto dma_unlock;
-
- vb = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
- ret = fimc_prepare_addr(ctx, vb, df, &df->paddr);
- if (ret)
- goto dma_unlock;
-
- /* Reconfigure hardware if the context has changed. */
- if (fimc->m2m.ctx != ctx) {
- ctx->state |= FIMC_PARAMS;
- fimc->m2m.ctx = ctx;
- }
-
- if (ctx->state & FIMC_PARAMS) {
- fimc_set_yuv_order(ctx);
- fimc_hw_set_input_path(ctx);
- fimc_hw_set_in_dma(ctx);
- ret = fimc_set_scaler_info(ctx);
- if (ret)
- goto dma_unlock;
- fimc_hw_set_prescaler(ctx);
- fimc_hw_set_mainscaler(ctx);
- fimc_hw_set_target_format(ctx);
- fimc_hw_set_rotation(ctx);
- fimc_hw_set_effect(ctx, false);
- fimc_hw_set_out_dma(ctx);
- if (fimc->variant->has_alpha)
- fimc_hw_set_rgb_alpha(ctx);
- fimc_hw_set_output_path(ctx);
- }
- fimc_hw_set_input_addr(fimc, &sf->paddr);
- fimc_hw_set_output_addr(fimc, &df->paddr, -1);
-
- fimc_activate_capture(ctx);
-
- ctx->state &= (FIMC_CTX_M2M | FIMC_CTX_CAP |
- FIMC_SRC_FMT | FIMC_DST_FMT);
- fimc_hw_activate_input_dma(fimc, true);
-dma_unlock:
- spin_unlock_irqrestore(&fimc->slock, flags);
-}
-
-static void fimc_job_abort(void *priv)
-{
- fimc_m2m_shutdown(priv);
-}
-
-static int fimc_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
- unsigned int *num_buffers, unsigned int *num_planes,
- unsigned int sizes[], void *allocators[])
-{
- struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
- struct fimc_frame *f;
- int i;
-
- f = ctx_get_frame(ctx, vq->type);
- if (IS_ERR(f))
- return PTR_ERR(f);
- /*
- * Return number of non-contigous planes (plane buffers)
- * depending on the configured color format.
- */
- if (!f->fmt)
- return -EINVAL;
-
- *num_planes = f->fmt->memplanes;
- for (i = 0; i < f->fmt->memplanes; i++) {
- sizes[i] = (f->f_width * f->f_height * f->fmt->depth[i]) / 8;
- allocators[i] = ctx->fimc_dev->alloc_ctx;
- }
- return 0;
-}
-
-static int fimc_buf_prepare(struct vb2_buffer *vb)
-{
- struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
- struct fimc_frame *frame;
- int i;
-
- frame = ctx_get_frame(ctx, vb->vb2_queue->type);
- if (IS_ERR(frame))
- return PTR_ERR(frame);
-
- for (i = 0; i < frame->fmt->memplanes; i++)
- vb2_set_plane_payload(vb, i, frame->payload[i]);
-
- return 0;
-}
-
-static void fimc_buf_queue(struct vb2_buffer *vb)
-{
- struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
-
- dbg("ctx: %p, ctx->state: 0x%x", ctx, ctx->state);
-
- if (ctx->m2m_ctx)
- v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
-}
-
-static void fimc_lock(struct vb2_queue *vq)
-{
- struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
- mutex_lock(&ctx->fimc_dev->lock);
-}
-
-static void fimc_unlock(struct vb2_queue *vq)
-{
- struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
- mutex_unlock(&ctx->fimc_dev->lock);
-}
-
-static struct vb2_ops fimc_qops = {
- .queue_setup = fimc_queue_setup,
- .buf_prepare = fimc_buf_prepare,
- .buf_queue = fimc_buf_queue,
- .wait_prepare = fimc_unlock,
- .wait_finish = fimc_lock,
- .stop_streaming = stop_streaming,
- .start_streaming = start_streaming,
-};
-
/*
* V4L2 controls handling
*/
v4l2_ctrl_unlock(ctrl);
}
-/*
- * V4L2 ioctl handlers
- */
-static int fimc_m2m_querycap(struct file *file, void *fh,
- struct v4l2_capability *cap)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
- struct fimc_dev *fimc = ctx->fimc_dev;
-
- strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1);
- strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1);
- cap->bus_info[0] = 0;
- cap->capabilities = V4L2_CAP_STREAMING |
- V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_OUTPUT_MPLANE;
-
- return 0;
-}
-
-static int fimc_m2m_enum_fmt_mplane(struct file *file, void *priv,
- struct v4l2_fmtdesc *f)
-{
- struct fimc_fmt *fmt;
-
- fmt = fimc_find_format(NULL, NULL, get_m2m_fmt_flags(f->type),
- f->index);
- if (!fmt)
- return -EINVAL;
-
- strncpy(f->description, fmt->name, sizeof(f->description) - 1);
- f->pixelformat = fmt->fourcc;
- return 0;
-}
-
int fimc_fill_format(struct fimc_frame *frame, struct v4l2_format *f)
{
struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
}
}
-static int fimc_m2m_g_fmt_mplane(struct file *file, void *fh,
- struct v4l2_format *f)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
- struct fimc_frame *frame = ctx_get_frame(ctx, f->type);
-
- if (IS_ERR(frame))
- return PTR_ERR(frame);
-
- return fimc_fill_format(frame, f);
-}
-
/**
* fimc_find_format - lookup fimc color format by fourcc or media bus format
* @pixelformat: fourcc to match, ignored if null
return def_fmt;
}
-static int fimc_try_fmt_mplane(struct fimc_ctx *ctx, struct v4l2_format *f)
-{
- struct fimc_dev *fimc = ctx->fimc_dev;
- struct samsung_fimc_variant *variant = fimc->variant;
- struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
- struct fimc_fmt *fmt;
- u32 max_w, mod_x, mod_y;
-
- if (!IS_M2M(f->type))
- return -EINVAL;
-
- dbg("w: %d, h: %d", pix->width, pix->height);
-
- fmt = fimc_find_format(&pix->pixelformat, NULL,
- get_m2m_fmt_flags(f->type), 0);
- if (WARN(fmt == NULL, "Pixel format lookup failed"))
- return -EINVAL;
-
- if (pix->field == V4L2_FIELD_ANY)
- pix->field = V4L2_FIELD_NONE;
- else if (pix->field != V4L2_FIELD_NONE)
- return -EINVAL;
-
- if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
- max_w = variant->pix_limit->scaler_dis_w;
- mod_x = ffs(variant->min_inp_pixsize) - 1;
- } else {
- max_w = variant->pix_limit->out_rot_dis_w;
- mod_x = ffs(variant->min_out_pixsize) - 1;
- }
-
- if (tiled_fmt(fmt)) {
- mod_x = 6; /* 64 x 32 pixels tile */
- mod_y = 5;
- } else {
- if (variant->min_vsize_align == 1)
- mod_y = fimc_fmt_is_rgb(fmt->color) ? 0 : 1;
- else
- mod_y = ffs(variant->min_vsize_align) - 1;
- }
-
- v4l_bound_align_image(&pix->width, 16, max_w, mod_x,
- &pix->height, 8, variant->pix_limit->scaler_dis_w, mod_y, 0);
-
- fimc_adjust_mplane_format(fmt, pix->width, pix->height, &f->fmt.pix_mp);
- return 0;
-}
-
-static int fimc_m2m_try_fmt_mplane(struct file *file, void *fh,
- struct v4l2_format *f)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
-
- return fimc_try_fmt_mplane(ctx, f);
-}
-
-static int fimc_m2m_s_fmt_mplane(struct file *file, void *fh,
- struct v4l2_format *f)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
- struct fimc_dev *fimc = ctx->fimc_dev;
- struct vb2_queue *vq;
- struct fimc_frame *frame;
- struct v4l2_pix_format_mplane *pix;
- int i, ret = 0;
-
- ret = fimc_try_fmt_mplane(ctx, f);
- if (ret)
- return ret;
-
- vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
-
- if (vb2_is_busy(vq)) {
- v4l2_err(fimc->m2m.vfd, "queue (%d) busy\n", f->type);
- return -EBUSY;
- }
-
- if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
- frame = &ctx->s_frame;
- else
- frame = &ctx->d_frame;
-
- pix = &f->fmt.pix_mp;
- frame->fmt = fimc_find_format(&pix->pixelformat, NULL,
- get_m2m_fmt_flags(f->type), 0);
- if (!frame->fmt)
- return -EINVAL;
-
- /* Update RGB Alpha control state and value range */
- fimc_alpha_ctrl_update(ctx);
-
- for (i = 0; i < frame->fmt->colplanes; i++) {
- frame->payload[i] =
- (pix->width * pix->height * frame->fmt->depth[i]) / 8;
- }
-
- fimc_fill_frame(frame, f);
-
- ctx->scaler.enabled = 1;
-
- if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
- fimc_ctx_state_set(FIMC_PARAMS | FIMC_DST_FMT, ctx);
- else
- fimc_ctx_state_set(FIMC_PARAMS | FIMC_SRC_FMT, ctx);
-
- dbg("f_w: %d, f_h: %d", frame->f_width, frame->f_height);
-
- return 0;
-}
-
-static int fimc_m2m_reqbufs(struct file *file, void *fh,
- struct v4l2_requestbuffers *reqbufs)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
-
- return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
-}
-
-static int fimc_m2m_querybuf(struct file *file, void *fh,
- struct v4l2_buffer *buf)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
-
- return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
-}
-
-static int fimc_m2m_qbuf(struct file *file, void *fh,
- struct v4l2_buffer *buf)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
-
- return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
-}
-
-static int fimc_m2m_dqbuf(struct file *file, void *fh,
- struct v4l2_buffer *buf)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
-
- return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
-}
-
-static int fimc_m2m_streamon(struct file *file, void *fh,
- enum v4l2_buf_type type)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
-
- /* The source and target color format need to be set */
- if (V4L2_TYPE_IS_OUTPUT(type)) {
- if (!fimc_ctx_state_is_set(FIMC_SRC_FMT, ctx))
- return -EINVAL;
- } else if (!fimc_ctx_state_is_set(FIMC_DST_FMT, ctx)) {
- return -EINVAL;
- }
-
- return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
-}
-
-static int fimc_m2m_streamoff(struct file *file, void *fh,
- enum v4l2_buf_type type)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
-
- return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
-}
-
-static int fimc_m2m_cropcap(struct file *file, void *fh,
- struct v4l2_cropcap *cr)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
- struct fimc_frame *frame;
-
- frame = ctx_get_frame(ctx, cr->type);
- if (IS_ERR(frame))
- return PTR_ERR(frame);
-
- cr->bounds.left = 0;
- cr->bounds.top = 0;
- cr->bounds.width = frame->o_width;
- cr->bounds.height = frame->o_height;
- cr->defrect = cr->bounds;
-
- return 0;
-}
-
-static int fimc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
- struct fimc_frame *frame;
-
- frame = ctx_get_frame(ctx, cr->type);
- if (IS_ERR(frame))
- return PTR_ERR(frame);
-
- cr->c.left = frame->offs_h;
- cr->c.top = frame->offs_v;
- cr->c.width = frame->width;
- cr->c.height = frame->height;
-
- return 0;
-}
-
-static int fimc_m2m_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr)
-{
- struct fimc_dev *fimc = ctx->fimc_dev;
- struct fimc_frame *f;
- u32 min_size, halign, depth = 0;
- int i;
-
- if (cr->c.top < 0 || cr->c.left < 0) {
- v4l2_err(fimc->m2m.vfd,
- "doesn't support negative values for top & left\n");
- return -EINVAL;
- }
- if (cr->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
- f = &ctx->d_frame;
- else if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
- f = &ctx->s_frame;
- else
- return -EINVAL;
-
- min_size = (f == &ctx->s_frame) ?
- fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize;
-
- /* Get pixel alignment constraints. */
- if (fimc->variant->min_vsize_align == 1)
- halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1;
- else
- halign = ffs(fimc->variant->min_vsize_align) - 1;
-
- for (i = 0; i < f->fmt->colplanes; i++)
- depth += f->fmt->depth[i];
-
- v4l_bound_align_image(&cr->c.width, min_size, f->o_width,
- ffs(min_size) - 1,
- &cr->c.height, min_size, f->o_height,
- halign, 64/(ALIGN(depth, 8)));
-
- /* adjust left/top if cropping rectangle is out of bounds */
- if (cr->c.left + cr->c.width > f->o_width)
- cr->c.left = f->o_width - cr->c.width;
- if (cr->c.top + cr->c.height > f->o_height)
- cr->c.top = f->o_height - cr->c.height;
-
- cr->c.left = round_down(cr->c.left, min_size);
- cr->c.top = round_down(cr->c.top, fimc->variant->hor_offs_align);
-
- dbg("l:%d, t:%d, w:%d, h:%d, f_w: %d, f_h: %d",
- cr->c.left, cr->c.top, cr->c.width, cr->c.height,
- f->f_width, f->f_height);
-
- return 0;
-}
-
-static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
- struct fimc_dev *fimc = ctx->fimc_dev;
- struct fimc_frame *f;
- int ret;
-
- ret = fimc_m2m_try_crop(ctx, cr);
- if (ret)
- return ret;
-
- f = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) ?
- &ctx->s_frame : &ctx->d_frame;
-
- /* Check to see if scaling ratio is within supported range */
- if (fimc_ctx_state_is_set(FIMC_DST_FMT | FIMC_SRC_FMT, ctx)) {
- if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
- ret = fimc_check_scaler_ratio(ctx, cr->c.width,
- cr->c.height, ctx->d_frame.width,
- ctx->d_frame.height, ctx->rotation);
- } else {
- ret = fimc_check_scaler_ratio(ctx, ctx->s_frame.width,
- ctx->s_frame.height, cr->c.width,
- cr->c.height, ctx->rotation);
- }
- if (ret) {
- v4l2_err(fimc->m2m.vfd, "Out of scaler range\n");
- return -EINVAL;
- }
- }
-
- f->offs_h = cr->c.left;
- f->offs_v = cr->c.top;
- f->width = cr->c.width;
- f->height = cr->c.height;
-
- fimc_ctx_state_set(FIMC_PARAMS, ctx);
-
- return 0;
-}
-
-static const struct v4l2_ioctl_ops fimc_m2m_ioctl_ops = {
- .vidioc_querycap = fimc_m2m_querycap,
-
- .vidioc_enum_fmt_vid_cap_mplane = fimc_m2m_enum_fmt_mplane,
- .vidioc_enum_fmt_vid_out_mplane = fimc_m2m_enum_fmt_mplane,
-
- .vidioc_g_fmt_vid_cap_mplane = fimc_m2m_g_fmt_mplane,
- .vidioc_g_fmt_vid_out_mplane = fimc_m2m_g_fmt_mplane,
-
- .vidioc_try_fmt_vid_cap_mplane = fimc_m2m_try_fmt_mplane,
- .vidioc_try_fmt_vid_out_mplane = fimc_m2m_try_fmt_mplane,
-
- .vidioc_s_fmt_vid_cap_mplane = fimc_m2m_s_fmt_mplane,
- .vidioc_s_fmt_vid_out_mplane = fimc_m2m_s_fmt_mplane,
-
- .vidioc_reqbufs = fimc_m2m_reqbufs,
- .vidioc_querybuf = fimc_m2m_querybuf,
-
- .vidioc_qbuf = fimc_m2m_qbuf,
- .vidioc_dqbuf = fimc_m2m_dqbuf,
-
- .vidioc_streamon = fimc_m2m_streamon,
- .vidioc_streamoff = fimc_m2m_streamoff,
-
- .vidioc_g_crop = fimc_m2m_g_crop,
- .vidioc_s_crop = fimc_m2m_s_crop,
- .vidioc_cropcap = fimc_m2m_cropcap
-
-};
-
-static int queue_init(void *priv, struct vb2_queue *src_vq,
- struct vb2_queue *dst_vq)
-{
- struct fimc_ctx *ctx = priv;
- int ret;
-
- memset(src_vq, 0, sizeof(*src_vq));
- src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
- src_vq->io_modes = VB2_MMAP | VB2_USERPTR;
- src_vq->drv_priv = ctx;
- src_vq->ops = &fimc_qops;
- src_vq->mem_ops = &vb2_dma_contig_memops;
- src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
-
- ret = vb2_queue_init(src_vq);
- if (ret)
- return ret;
-
- memset(dst_vq, 0, sizeof(*dst_vq));
- dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
- dst_vq->io_modes = VB2_MMAP | VB2_USERPTR;
- dst_vq->drv_priv = ctx;
- dst_vq->ops = &fimc_qops;
- dst_vq->mem_ops = &vb2_dma_contig_memops;
- dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
-
- return vb2_queue_init(dst_vq);
-}
-
-static int fimc_m2m_open(struct file *file)
-{
- struct fimc_dev *fimc = video_drvdata(file);
- struct fimc_ctx *ctx;
- int ret;
-
- dbg("pid: %d, state: 0x%lx, refcnt: %d",
- task_pid_nr(current), fimc->state, fimc->vid_cap.refcnt);
-
- /*
- * Return if the corresponding video capture node
- * is already opened.
- */
- if (fimc->vid_cap.refcnt > 0)
- return -EBUSY;
-
- ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
- if (!ctx)
- return -ENOMEM;
- v4l2_fh_init(&ctx->fh, fimc->m2m.vfd);
- ctx->fimc_dev = fimc;
-
- /* Default color format */
- ctx->s_frame.fmt = &fimc_formats[0];
- ctx->d_frame.fmt = &fimc_formats[0];
-
- ret = fimc_ctrls_create(ctx);
- if (ret)
- goto error_fh;
-
- /* Use separate control handler per file handle */
- ctx->fh.ctrl_handler = &ctx->ctrl_handler;
- file->private_data = &ctx->fh;
- v4l2_fh_add(&ctx->fh);
-
- /* Setup the device context for memory-to-memory mode */
- ctx->state = FIMC_CTX_M2M;
- ctx->flags = 0;
- ctx->in_path = FIMC_DMA;
- ctx->out_path = FIMC_DMA;
-
- ctx->m2m_ctx = v4l2_m2m_ctx_init(fimc->m2m.m2m_dev, ctx, queue_init);
- if (IS_ERR(ctx->m2m_ctx)) {
- ret = PTR_ERR(ctx->m2m_ctx);
- goto error_c;
- }
-
- if (fimc->m2m.refcnt++ == 0)
- set_bit(ST_M2M_RUN, &fimc->state);
- return 0;
-
-error_c:
- fimc_ctrls_delete(ctx);
-error_fh:
- v4l2_fh_del(&ctx->fh);
- v4l2_fh_exit(&ctx->fh);
- kfree(ctx);
- return ret;
-}
-
-static int fimc_m2m_release(struct file *file)
-{
- struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
- struct fimc_dev *fimc = ctx->fimc_dev;
-
- dbg("pid: %d, state: 0x%lx, refcnt= %d",
- task_pid_nr(current), fimc->state, fimc->m2m.refcnt);
-
- v4l2_m2m_ctx_release(ctx->m2m_ctx);
- fimc_ctrls_delete(ctx);
- v4l2_fh_del(&ctx->fh);
- v4l2_fh_exit(&ctx->fh);
-
- if (--fimc->m2m.refcnt <= 0)
- clear_bit(ST_M2M_RUN, &fimc->state);
- kfree(ctx);
- return 0;
-}
-
-static unsigned int fimc_m2m_poll(struct file *file,
- struct poll_table_struct *wait)
-{
- struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
-
- return v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
-}
-
-
-static int fimc_m2m_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
-
- return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
-}
-
-static const struct v4l2_file_operations fimc_m2m_fops = {
- .owner = THIS_MODULE,
- .open = fimc_m2m_open,
- .release = fimc_m2m_release,
- .poll = fimc_m2m_poll,
- .unlocked_ioctl = video_ioctl2,
- .mmap = fimc_m2m_mmap,
-};
-
-static struct v4l2_m2m_ops m2m_ops = {
- .device_run = fimc_dma_run,
- .job_abort = fimc_job_abort,
-};
-
-int fimc_register_m2m_device(struct fimc_dev *fimc,
- struct v4l2_device *v4l2_dev)
-{
- struct video_device *vfd;
- struct platform_device *pdev;
- int ret = 0;
-
- if (!fimc)
- return -ENODEV;
-
- pdev = fimc->pdev;
- fimc->v4l2_dev = v4l2_dev;
-
- vfd = video_device_alloc();
- if (!vfd) {
- v4l2_err(v4l2_dev, "Failed to allocate video device\n");
- return -ENOMEM;
- }
-
- vfd->fops = &fimc_m2m_fops;
- vfd->ioctl_ops = &fimc_m2m_ioctl_ops;
- vfd->v4l2_dev = v4l2_dev;
- vfd->minor = -1;
- vfd->release = video_device_release;
- vfd->lock = &fimc->lock;
- /* Locking in file operations other than ioctl should be done
- by the driver, not the V4L2 core.
- This driver needs auditing so that this flag can be removed. */
- set_bit(V4L2_FL_LOCK_ALL_FOPS, &vfd->flags);
-
- snprintf(vfd->name, sizeof(vfd->name), "%s.m2m", dev_name(&pdev->dev));
- video_set_drvdata(vfd, fimc);
-
- fimc->m2m.vfd = vfd;
- fimc->m2m.m2m_dev = v4l2_m2m_init(&m2m_ops);
- if (IS_ERR(fimc->m2m.m2m_dev)) {
- v4l2_err(v4l2_dev, "failed to initialize v4l2-m2m device\n");
- ret = PTR_ERR(fimc->m2m.m2m_dev);
- goto err_init;
- }
-
- ret = media_entity_init(&vfd->entity, 0, NULL, 0);
- if (!ret)
- return 0;
-
- v4l2_m2m_release(fimc->m2m.m2m_dev);
-err_init:
- video_device_release(fimc->m2m.vfd);
- return ret;
-}
-
-void fimc_unregister_m2m_device(struct fimc_dev *fimc)
-{
- if (!fimc)
- return;
-
- if (fimc->m2m.m2m_dev)
- v4l2_m2m_release(fimc->m2m.m2m_dev);
- if (fimc->m2m.vfd) {
- media_entity_cleanup(&fimc->m2m.vfd->entity);
- /* Can also be called if video device wasn't registered */
- video_unregister_device(fimc->m2m.vfd);
- }
-}
-
static void fimc_clk_put(struct fimc_dev *fimc)
{
int i;
struct v4l2_pix_format_mplane *pix);
struct fimc_fmt *fimc_find_format(const u32 *pixelformat, const u32 *mbus_code,
unsigned int mask, int index);
+struct fimc_fmt *fimc_get_format(unsigned int index);
int fimc_check_scaler_ratio(struct fimc_ctx *ctx, int sw, int sh,
int dw, int dh, int rotation);
void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f);
void fimc_set_yuv_order(struct fimc_ctx *ctx);
void fimc_fill_frame(struct fimc_frame *frame, struct v4l2_format *f);
-void fimc_capture_irq_handler(struct fimc_dev *fimc, bool done);
+void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf);
int fimc_register_m2m_device(struct fimc_dev *fimc,
struct v4l2_device *v4l2_dev);
int fimc_register_driver(void);
void fimc_unregister_driver(void);
+/* -----------------------------------------------------*/
+/* fimc-m2m.c */
+void fimc_m2m_job_finish(struct fimc_ctx *ctx, int vb_state);
+
/* -----------------------------------------------------*/
/* fimc-capture.c */
int fimc_register_capture_device(struct fimc_dev *fimc,
struct v4l2_device *v4l2_dev);
void fimc_unregister_capture_device(struct fimc_dev *fimc);
int fimc_capture_ctrls_create(struct fimc_dev *fimc);
-int fimc_vid_cap_buf_queue(struct fimc_dev *fimc,
- struct fimc_vid_buffer *fimc_vb);
void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification,
void *arg);
int fimc_capture_suspend(struct fimc_dev *fimc);
int fimc_capture_resume(struct fimc_dev *fimc);
-int fimc_capture_config_update(struct fimc_ctx *ctx);
/* Locking: the caller holds fimc->slock */
static inline void fimc_activate_capture(struct fimc_ctx *ctx)
--- /dev/null
+/*
+ * Samsung S5P/EXYNOS4 SoC series FIMC (video postprocessor) driver
+ *
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ * Sylwester Nawrocki, <s.nawrocki@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 2 of the License,
+ * or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/bug.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/list.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-core.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "fimc-core.h"
+#include "fimc-mdevice.h"
+
+
+static unsigned int get_m2m_fmt_flags(unsigned int stream_type)
+{
+ if (stream_type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+ return FMT_FLAGS_M2M_IN;
+ else
+ return FMT_FLAGS_M2M_OUT;
+}
+
+void fimc_m2m_job_finish(struct fimc_ctx *ctx, int vb_state)
+{
+ struct vb2_buffer *src_vb, *dst_vb;
+
+ if (!ctx || !ctx->m2m_ctx)
+ return;
+
+ src_vb = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
+ dst_vb = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
+
+ if (src_vb && dst_vb) {
+ v4l2_m2m_buf_done(src_vb, vb_state);
+ v4l2_m2m_buf_done(dst_vb, vb_state);
+ v4l2_m2m_job_finish(ctx->fimc_dev->m2m.m2m_dev,
+ ctx->m2m_ctx);
+ }
+}
+
+/* Complete the transaction which has been scheduled for execution. */
+static int fimc_m2m_shutdown(struct fimc_ctx *ctx)
+{
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ int ret;
+
+ if (!fimc_m2m_pending(fimc))
+ return 0;
+
+ fimc_ctx_state_set(FIMC_CTX_SHUT, ctx);
+
+ ret = wait_event_timeout(fimc->irq_queue,
+ !fimc_ctx_state_is_set(FIMC_CTX_SHUT, ctx),
+ FIMC_SHUTDOWN_TIMEOUT);
+
+ return ret == 0 ? -ETIMEDOUT : ret;
+}
+
+static int start_streaming(struct vb2_queue *q, unsigned int count)
+{
+ struct fimc_ctx *ctx = q->drv_priv;
+ int ret;
+
+ ret = pm_runtime_get_sync(&ctx->fimc_dev->pdev->dev);
+ return ret > 0 ? 0 : ret;
+}
+
+static int stop_streaming(struct vb2_queue *q)
+{
+ struct fimc_ctx *ctx = q->drv_priv;
+ int ret;
+
+ ret = fimc_m2m_shutdown(ctx);
+ if (ret == -ETIMEDOUT)
+ fimc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
+
+ pm_runtime_put(&ctx->fimc_dev->pdev->dev);
+ return 0;
+}
+
+static void fimc_device_run(void *priv)
+{
+ struct vb2_buffer *vb = NULL;
+ struct fimc_ctx *ctx = priv;
+ struct fimc_frame *sf, *df;
+ struct fimc_dev *fimc;
+ unsigned long flags;
+ u32 ret;
+
+ if (WARN(!ctx, "Null context\n"))
+ return;
+
+ fimc = ctx->fimc_dev;
+ spin_lock_irqsave(&fimc->slock, flags);
+
+ set_bit(ST_M2M_PEND, &fimc->state);
+ sf = &ctx->s_frame;
+ df = &ctx->d_frame;
+
+ if (ctx->state & FIMC_PARAMS) {
+ /* Prepare the DMA offsets for scaler */
+ fimc_prepare_dma_offset(ctx, sf);
+ fimc_prepare_dma_offset(ctx, df);
+ }
+
+ vb = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
+ ret = fimc_prepare_addr(ctx, vb, sf, &sf->paddr);
+ if (ret)
+ goto dma_unlock;
+
+ vb = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
+ ret = fimc_prepare_addr(ctx, vb, df, &df->paddr);
+ if (ret)
+ goto dma_unlock;
+
+ /* Reconfigure hardware if the context has changed. */
+ if (fimc->m2m.ctx != ctx) {
+ ctx->state |= FIMC_PARAMS;
+ fimc->m2m.ctx = ctx;
+ }
+
+ if (ctx->state & FIMC_PARAMS) {
+ fimc_set_yuv_order(ctx);
+ fimc_hw_set_input_path(ctx);
+ fimc_hw_set_in_dma(ctx);
+ ret = fimc_set_scaler_info(ctx);
+ if (ret)
+ goto dma_unlock;
+ fimc_hw_set_prescaler(ctx);
+ fimc_hw_set_mainscaler(ctx);
+ fimc_hw_set_target_format(ctx);
+ fimc_hw_set_rotation(ctx);
+ fimc_hw_set_effect(ctx, false);
+ fimc_hw_set_out_dma(ctx);
+ if (fimc->variant->has_alpha)
+ fimc_hw_set_rgb_alpha(ctx);
+ fimc_hw_set_output_path(ctx);
+ }
+ fimc_hw_set_input_addr(fimc, &sf->paddr);
+ fimc_hw_set_output_addr(fimc, &df->paddr, -1);
+
+ fimc_activate_capture(ctx);
+ ctx->state &= (FIMC_CTX_M2M | FIMC_CTX_CAP |
+ FIMC_SRC_FMT | FIMC_DST_FMT);
+ fimc_hw_activate_input_dma(fimc, true);
+
+dma_unlock:
+ spin_unlock_irqrestore(&fimc->slock, flags);
+}
+
+static void fimc_job_abort(void *priv)
+{
+ fimc_m2m_shutdown(priv);
+}
+
+static int fimc_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
+ unsigned int *num_buffers, unsigned int *num_planes,
+ unsigned int sizes[], void *allocators[])
+{
+ struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
+ struct fimc_frame *f;
+ int i;
+
+ f = ctx_get_frame(ctx, vq->type);
+ if (IS_ERR(f))
+ return PTR_ERR(f);
+ /*
+ * Return number of non-contigous planes (plane buffers)
+ * depending on the configured color format.
+ */
+ if (!f->fmt)
+ return -EINVAL;
+
+ *num_planes = f->fmt->memplanes;
+ for (i = 0; i < f->fmt->memplanes; i++) {
+ sizes[i] = (f->f_width * f->f_height * f->fmt->depth[i]) / 8;
+ allocators[i] = ctx->fimc_dev->alloc_ctx;
+ }
+ return 0;
+}
+
+static int fimc_buf_prepare(struct vb2_buffer *vb)
+{
+ struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct fimc_frame *frame;
+ int i;
+
+ frame = ctx_get_frame(ctx, vb->vb2_queue->type);
+ if (IS_ERR(frame))
+ return PTR_ERR(frame);
+
+ for (i = 0; i < frame->fmt->memplanes; i++)
+ vb2_set_plane_payload(vb, i, frame->payload[i]);
+
+ return 0;
+}
+
+static void fimc_buf_queue(struct vb2_buffer *vb)
+{
+ struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+
+ dbg("ctx: %p, ctx->state: 0x%x", ctx, ctx->state);
+
+ if (ctx->m2m_ctx)
+ v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
+}
+
+static void fimc_lock(struct vb2_queue *vq)
+{
+ struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
+ mutex_lock(&ctx->fimc_dev->lock);
+}
+
+static void fimc_unlock(struct vb2_queue *vq)
+{
+ struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
+ mutex_unlock(&ctx->fimc_dev->lock);
+}
+
+static struct vb2_ops fimc_qops = {
+ .queue_setup = fimc_queue_setup,
+ .buf_prepare = fimc_buf_prepare,
+ .buf_queue = fimc_buf_queue,
+ .wait_prepare = fimc_unlock,
+ .wait_finish = fimc_lock,
+ .stop_streaming = stop_streaming,
+ .start_streaming = start_streaming,
+};
+
+/*
+ * V4L2 ioctl handlers
+ */
+static int fimc_m2m_querycap(struct file *file, void *fh,
+ struct v4l2_capability *cap)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(fh);
+ struct fimc_dev *fimc = ctx->fimc_dev;
+
+ strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1);
+ strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1);
+ cap->bus_info[0] = 0;
+ cap->capabilities = V4L2_CAP_STREAMING |
+ V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_OUTPUT_MPLANE;
+
+ return 0;
+}
+
+static int fimc_m2m_enum_fmt_mplane(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ struct fimc_fmt *fmt;
+
+ fmt = fimc_find_format(NULL, NULL, get_m2m_fmt_flags(f->type),
+ f->index);
+ if (!fmt)
+ return -EINVAL;
+
+ strncpy(f->description, fmt->name, sizeof(f->description) - 1);
+ f->pixelformat = fmt->fourcc;
+ return 0;
+}
+
+static int fimc_m2m_g_fmt_mplane(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(fh);
+ struct fimc_frame *frame = ctx_get_frame(ctx, f->type);
+
+ if (IS_ERR(frame))
+ return PTR_ERR(frame);
+
+ return fimc_fill_format(frame, f);
+}
+
+static int fimc_try_fmt_mplane(struct fimc_ctx *ctx, struct v4l2_format *f)
+{
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct samsung_fimc_variant *variant = fimc->variant;
+ struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
+ struct fimc_fmt *fmt;
+ u32 max_w, mod_x, mod_y;
+
+ if (!IS_M2M(f->type))
+ return -EINVAL;
+
+ dbg("w: %d, h: %d", pix->width, pix->height);
+
+ fmt = fimc_find_format(&pix->pixelformat, NULL,
+ get_m2m_fmt_flags(f->type), 0);
+ if (WARN(fmt == NULL, "Pixel format lookup failed"))
+ return -EINVAL;
+
+ if (pix->field == V4L2_FIELD_ANY)
+ pix->field = V4L2_FIELD_NONE;
+ else if (pix->field != V4L2_FIELD_NONE)
+ return -EINVAL;
+
+ if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ max_w = variant->pix_limit->scaler_dis_w;
+ mod_x = ffs(variant->min_inp_pixsize) - 1;
+ } else {
+ max_w = variant->pix_limit->out_rot_dis_w;
+ mod_x = ffs(variant->min_out_pixsize) - 1;
+ }
+
+ if (tiled_fmt(fmt)) {
+ mod_x = 6; /* 64 x 32 pixels tile */
+ mod_y = 5;
+ } else {
+ if (variant->min_vsize_align == 1)
+ mod_y = fimc_fmt_is_rgb(fmt->color) ? 0 : 1;
+ else
+ mod_y = ffs(variant->min_vsize_align) - 1;
+ }
+
+ v4l_bound_align_image(&pix->width, 16, max_w, mod_x,
+ &pix->height, 8, variant->pix_limit->scaler_dis_w, mod_y, 0);
+
+ fimc_adjust_mplane_format(fmt, pix->width, pix->height, &f->fmt.pix_mp);
+ return 0;
+}
+
+static int fimc_m2m_try_fmt_mplane(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(fh);
+
+ return fimc_try_fmt_mplane(ctx, f);
+}
+
+static int fimc_m2m_s_fmt_mplane(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(fh);
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct vb2_queue *vq;
+ struct fimc_frame *frame;
+ struct v4l2_pix_format_mplane *pix;
+ int i, ret = 0;
+
+ ret = fimc_try_fmt_mplane(ctx, f);
+ if (ret)
+ return ret;
+
+ vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
+
+ if (vb2_is_busy(vq)) {
+ v4l2_err(fimc->m2m.vfd, "queue (%d) busy\n", f->type);
+ return -EBUSY;
+ }
+
+ if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+ frame = &ctx->s_frame;
+ else
+ frame = &ctx->d_frame;
+
+ pix = &f->fmt.pix_mp;
+ frame->fmt = fimc_find_format(&pix->pixelformat, NULL,
+ get_m2m_fmt_flags(f->type), 0);
+ if (!frame->fmt)
+ return -EINVAL;
+
+ /* Update RGB Alpha control state and value range */
+ fimc_alpha_ctrl_update(ctx);
+
+ for (i = 0; i < frame->fmt->colplanes; i++) {
+ frame->payload[i] =
+ (pix->width * pix->height * frame->fmt->depth[i]) / 8;
+ }
+
+ fimc_fill_frame(frame, f);
+
+ ctx->scaler.enabled = 1;
+
+ if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ fimc_ctx_state_set(FIMC_PARAMS | FIMC_DST_FMT, ctx);
+ else
+ fimc_ctx_state_set(FIMC_PARAMS | FIMC_SRC_FMT, ctx);
+
+ dbg("f_w: %d, f_h: %d", frame->f_width, frame->f_height);
+
+ return 0;
+}
+
+static int fimc_m2m_reqbufs(struct file *file, void *fh,
+ struct v4l2_requestbuffers *reqbufs)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(fh);
+
+ return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
+}
+
+static int fimc_m2m_querybuf(struct file *file, void *fh,
+ struct v4l2_buffer *buf)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(fh);
+
+ return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
+}
+
+static int fimc_m2m_qbuf(struct file *file, void *fh,
+ struct v4l2_buffer *buf)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(fh);
+
+ return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
+}
+
+static int fimc_m2m_dqbuf(struct file *file, void *fh,
+ struct v4l2_buffer *buf)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(fh);
+
+ return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
+}
+
+static int fimc_m2m_streamon(struct file *file, void *fh,
+ enum v4l2_buf_type type)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(fh);
+
+ /* The source and target color format need to be set */
+ if (V4L2_TYPE_IS_OUTPUT(type)) {
+ if (!fimc_ctx_state_is_set(FIMC_SRC_FMT, ctx))
+ return -EINVAL;
+ } else if (!fimc_ctx_state_is_set(FIMC_DST_FMT, ctx)) {
+ return -EINVAL;
+ }
+
+ return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
+}
+
+static int fimc_m2m_streamoff(struct file *file, void *fh,
+ enum v4l2_buf_type type)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(fh);
+
+ return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
+}
+
+static int fimc_m2m_cropcap(struct file *file, void *fh,
+ struct v4l2_cropcap *cr)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(fh);
+ struct fimc_frame *frame;
+
+ frame = ctx_get_frame(ctx, cr->type);
+ if (IS_ERR(frame))
+ return PTR_ERR(frame);
+
+ cr->bounds.left = 0;
+ cr->bounds.top = 0;
+ cr->bounds.width = frame->o_width;
+ cr->bounds.height = frame->o_height;
+ cr->defrect = cr->bounds;
+
+ return 0;
+}
+
+static int fimc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(fh);
+ struct fimc_frame *frame;
+
+ frame = ctx_get_frame(ctx, cr->type);
+ if (IS_ERR(frame))
+ return PTR_ERR(frame);
+
+ cr->c.left = frame->offs_h;
+ cr->c.top = frame->offs_v;
+ cr->c.width = frame->width;
+ cr->c.height = frame->height;
+
+ return 0;
+}
+
+static int fimc_m2m_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr)
+{
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct fimc_frame *f;
+ u32 min_size, halign, depth = 0;
+ int i;
+
+ if (cr->c.top < 0 || cr->c.left < 0) {
+ v4l2_err(fimc->m2m.vfd,
+ "doesn't support negative values for top & left\n");
+ return -EINVAL;
+ }
+ if (cr->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ f = &ctx->d_frame;
+ else if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+ f = &ctx->s_frame;
+ else
+ return -EINVAL;
+
+ min_size = (f == &ctx->s_frame) ?
+ fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize;
+
+ /* Get pixel alignment constraints. */
+ if (fimc->variant->min_vsize_align == 1)
+ halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1;
+ else
+ halign = ffs(fimc->variant->min_vsize_align) - 1;
+
+ for (i = 0; i < f->fmt->colplanes; i++)
+ depth += f->fmt->depth[i];
+
+ v4l_bound_align_image(&cr->c.width, min_size, f->o_width,
+ ffs(min_size) - 1,
+ &cr->c.height, min_size, f->o_height,
+ halign, 64/(ALIGN(depth, 8)));
+
+ /* adjust left/top if cropping rectangle is out of bounds */
+ if (cr->c.left + cr->c.width > f->o_width)
+ cr->c.left = f->o_width - cr->c.width;
+ if (cr->c.top + cr->c.height > f->o_height)
+ cr->c.top = f->o_height - cr->c.height;
+
+ cr->c.left = round_down(cr->c.left, min_size);
+ cr->c.top = round_down(cr->c.top, fimc->variant->hor_offs_align);
+
+ dbg("l:%d, t:%d, w:%d, h:%d, f_w: %d, f_h: %d",
+ cr->c.left, cr->c.top, cr->c.width, cr->c.height,
+ f->f_width, f->f_height);
+
+ return 0;
+}
+
+static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(fh);
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct fimc_frame *f;
+ int ret;
+
+ ret = fimc_m2m_try_crop(ctx, cr);
+ if (ret)
+ return ret;
+
+ f = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) ?
+ &ctx->s_frame : &ctx->d_frame;
+
+ /* Check to see if scaling ratio is within supported range */
+ if (fimc_ctx_state_is_set(FIMC_DST_FMT | FIMC_SRC_FMT, ctx)) {
+ if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ ret = fimc_check_scaler_ratio(ctx, cr->c.width,
+ cr->c.height, ctx->d_frame.width,
+ ctx->d_frame.height, ctx->rotation);
+ } else {
+ ret = fimc_check_scaler_ratio(ctx, ctx->s_frame.width,
+ ctx->s_frame.height, cr->c.width,
+ cr->c.height, ctx->rotation);
+ }
+ if (ret) {
+ v4l2_err(fimc->m2m.vfd, "Out of scaler range\n");
+ return -EINVAL;
+ }
+ }
+
+ f->offs_h = cr->c.left;
+ f->offs_v = cr->c.top;
+ f->width = cr->c.width;
+ f->height = cr->c.height;
+
+ fimc_ctx_state_set(FIMC_PARAMS, ctx);
+
+ return 0;
+}
+
+static const struct v4l2_ioctl_ops fimc_m2m_ioctl_ops = {
+ .vidioc_querycap = fimc_m2m_querycap,
+ .vidioc_enum_fmt_vid_cap_mplane = fimc_m2m_enum_fmt_mplane,
+ .vidioc_enum_fmt_vid_out_mplane = fimc_m2m_enum_fmt_mplane,
+ .vidioc_g_fmt_vid_cap_mplane = fimc_m2m_g_fmt_mplane,
+ .vidioc_g_fmt_vid_out_mplane = fimc_m2m_g_fmt_mplane,
+ .vidioc_try_fmt_vid_cap_mplane = fimc_m2m_try_fmt_mplane,
+ .vidioc_try_fmt_vid_out_mplane = fimc_m2m_try_fmt_mplane,
+ .vidioc_s_fmt_vid_cap_mplane = fimc_m2m_s_fmt_mplane,
+ .vidioc_s_fmt_vid_out_mplane = fimc_m2m_s_fmt_mplane,
+ .vidioc_reqbufs = fimc_m2m_reqbufs,
+ .vidioc_querybuf = fimc_m2m_querybuf,
+ .vidioc_qbuf = fimc_m2m_qbuf,
+ .vidioc_dqbuf = fimc_m2m_dqbuf,
+ .vidioc_streamon = fimc_m2m_streamon,
+ .vidioc_streamoff = fimc_m2m_streamoff,
+ .vidioc_g_crop = fimc_m2m_g_crop,
+ .vidioc_s_crop = fimc_m2m_s_crop,
+ .vidioc_cropcap = fimc_m2m_cropcap
+
+};
+
+static int queue_init(void *priv, struct vb2_queue *src_vq,
+ struct vb2_queue *dst_vq)
+{
+ struct fimc_ctx *ctx = priv;
+ int ret;
+
+ memset(src_vq, 0, sizeof(*src_vq));
+ src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+ src_vq->io_modes = VB2_MMAP | VB2_USERPTR;
+ src_vq->drv_priv = ctx;
+ src_vq->ops = &fimc_qops;
+ src_vq->mem_ops = &vb2_dma_contig_memops;
+ src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+
+ ret = vb2_queue_init(src_vq);
+ if (ret)
+ return ret;
+
+ memset(dst_vq, 0, sizeof(*dst_vq));
+ dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+ dst_vq->io_modes = VB2_MMAP | VB2_USERPTR;
+ dst_vq->drv_priv = ctx;
+ dst_vq->ops = &fimc_qops;
+ dst_vq->mem_ops = &vb2_dma_contig_memops;
+ dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+
+ return vb2_queue_init(dst_vq);
+}
+
+static int fimc_m2m_open(struct file *file)
+{
+ struct fimc_dev *fimc = video_drvdata(file);
+ struct fimc_ctx *ctx;
+ int ret;
+
+ dbg("pid: %d, state: 0x%lx, refcnt: %d",
+ task_pid_nr(current), fimc->state, fimc->vid_cap.refcnt);
+
+ /*
+ * Return if the corresponding video capture node
+ * is already opened.
+ */
+ if (fimc->vid_cap.refcnt > 0)
+ return -EBUSY;
+
+ ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+ v4l2_fh_init(&ctx->fh, fimc->m2m.vfd);
+ ctx->fimc_dev = fimc;
+
+ /* Default color format */
+ ctx->s_frame.fmt = fimc_get_format(0);
+ ctx->d_frame.fmt = fimc_get_format(0);
+
+ ret = fimc_ctrls_create(ctx);
+ if (ret)
+ goto error_fh;
+
+ /* Use separate control handler per file handle */
+ ctx->fh.ctrl_handler = &ctx->ctrl_handler;
+ file->private_data = &ctx->fh;
+ v4l2_fh_add(&ctx->fh);
+
+ /* Setup the device context for memory-to-memory mode */
+ ctx->state = FIMC_CTX_M2M;
+ ctx->flags = 0;
+ ctx->in_path = FIMC_DMA;
+ ctx->out_path = FIMC_DMA;
+
+ ctx->m2m_ctx = v4l2_m2m_ctx_init(fimc->m2m.m2m_dev, ctx, queue_init);
+ if (IS_ERR(ctx->m2m_ctx)) {
+ ret = PTR_ERR(ctx->m2m_ctx);
+ goto error_c;
+ }
+
+ if (fimc->m2m.refcnt++ == 0)
+ set_bit(ST_M2M_RUN, &fimc->state);
+ return 0;
+
+error_c:
+ fimc_ctrls_delete(ctx);
+error_fh:
+ v4l2_fh_del(&ctx->fh);
+ v4l2_fh_exit(&ctx->fh);
+ kfree(ctx);
+ return ret;
+}
+
+static int fimc_m2m_release(struct file *file)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
+ struct fimc_dev *fimc = ctx->fimc_dev;
+
+ dbg("pid: %d, state: 0x%lx, refcnt= %d",
+ task_pid_nr(current), fimc->state, fimc->m2m.refcnt);
+
+ v4l2_m2m_ctx_release(ctx->m2m_ctx);
+ fimc_ctrls_delete(ctx);
+ v4l2_fh_del(&ctx->fh);
+ v4l2_fh_exit(&ctx->fh);
+
+ if (--fimc->m2m.refcnt <= 0)
+ clear_bit(ST_M2M_RUN, &fimc->state);
+ kfree(ctx);
+ return 0;
+}
+
+static unsigned int fimc_m2m_poll(struct file *file,
+ struct poll_table_struct *wait)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
+
+ return v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
+}
+
+
+static int fimc_m2m_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
+
+ return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
+}
+
+static const struct v4l2_file_operations fimc_m2m_fops = {
+ .owner = THIS_MODULE,
+ .open = fimc_m2m_open,
+ .release = fimc_m2m_release,
+ .poll = fimc_m2m_poll,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = fimc_m2m_mmap,
+};
+
+static struct v4l2_m2m_ops m2m_ops = {
+ .device_run = fimc_device_run,
+ .job_abort = fimc_job_abort,
+};
+
+int fimc_register_m2m_device(struct fimc_dev *fimc,
+ struct v4l2_device *v4l2_dev)
+{
+ struct video_device *vfd;
+ struct platform_device *pdev;
+ int ret = 0;
+
+ if (!fimc)
+ return -ENODEV;
+
+ pdev = fimc->pdev;
+ fimc->v4l2_dev = v4l2_dev;
+
+ vfd = video_device_alloc();
+ if (!vfd) {
+ v4l2_err(v4l2_dev, "Failed to allocate video device\n");
+ return -ENOMEM;
+ }
+
+ vfd->fops = &fimc_m2m_fops;
+ vfd->ioctl_ops = &fimc_m2m_ioctl_ops;
+ vfd->v4l2_dev = v4l2_dev;
+ vfd->minor = -1;
+ vfd->release = video_device_release;
+ vfd->lock = &fimc->lock;
+ /* Locking in file operations other than ioctl should be done
+ by the driver, not the V4L2 core.
+ This driver needs auditing so that this flag can be removed. */
+ set_bit(V4L2_FL_LOCK_ALL_FOPS, &vfd->flags);
+
+ snprintf(vfd->name, sizeof(vfd->name), "%s.m2m", dev_name(&pdev->dev));
+ video_set_drvdata(vfd, fimc);
+
+ fimc->m2m.vfd = vfd;
+ fimc->m2m.m2m_dev = v4l2_m2m_init(&m2m_ops);
+ if (IS_ERR(fimc->m2m.m2m_dev)) {
+ v4l2_err(v4l2_dev, "failed to initialize v4l2-m2m device\n");
+ ret = PTR_ERR(fimc->m2m.m2m_dev);
+ goto err_init;
+ }
+
+ ret = media_entity_init(&vfd->entity, 0, NULL, 0);
+ if (!ret)
+ return 0;
+
+ v4l2_m2m_release(fimc->m2m.m2m_dev);
+err_init:
+ video_device_release(fimc->m2m.vfd);
+ return ret;
+}
+
+void fimc_unregister_m2m_device(struct fimc_dev *fimc)
+{
+ if (!fimc)
+ return;
+
+ if (fimc->m2m.m2m_dev)
+ v4l2_m2m_release(fimc->m2m.m2m_dev);
+ if (fimc->m2m.vfd) {
+ media_entity_cleanup(&fimc->m2m.vfd->entity);
+ /* Can also be called if video device wasn't registered */
+ video_unregister_device(fimc->m2m.vfd);
+ }
+}
projects / openwrt / staging / blogic.git / commitdiff