diff options
author | Sylwester Nawrocki | 2010-12-01 14:25:18 +0100 |
---|---|---|
committer | Mauro Carvalho Chehab | 2011-03-22 00:31:36 +0100 |
commit | 8293ebfce2053242e30069e65427e7560aff1fee (patch) | |
tree | 08d6080a6ce0b82ca18cfbd4188486b66ba80827 /drivers/media/video/s5p-fimc/fimc-core.c | |
parent | [media] s5p-fimc: Conversion to multiplanar formats (diff) | |
download | kernel-qcow2-linux-8293ebfce2053242e30069e65427e7560aff1fee.tar.gz kernel-qcow2-linux-8293ebfce2053242e30069e65427e7560aff1fee.tar.xz kernel-qcow2-linux-8293ebfce2053242e30069e65427e7560aff1fee.zip |
[media] s5p-fimc: Use v4l core mutex in ioctl and file operations
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/s5p-fimc/fimc-core.c')
-rw-r--r-- | drivers/media/video/s5p-fimc/fimc-core.c | 115 |
1 files changed, 29 insertions, 86 deletions
diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c index fe210976f30b..9ebb92530053 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.c +++ b/drivers/media/video/s5p-fimc/fimc-core.c @@ -741,22 +741,17 @@ int fimc_vidioc_g_fmt_mplane(struct file *file, void *priv, struct v4l2_format *f) { struct fimc_ctx *ctx = priv; - struct fimc_dev *fimc = ctx->fimc_dev; struct fimc_frame *frame; frame = ctx_get_frame(ctx, f->type); if (IS_ERR(frame)) return PTR_ERR(frame); - if (mutex_lock_interruptible(&fimc->lock)) - return -ERESTARTSYS; - f->fmt.pix.width = frame->width; f->fmt.pix.height = frame->height; f->fmt.pix.field = V4L2_FIELD_NONE; f->fmt.pix.pixelformat = frame->fmt->fourcc; - mutex_unlock(&fimc->lock); return 0; } @@ -800,7 +795,8 @@ int fimc_vidioc_try_fmt_mplane(struct file *file, void *priv, struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; struct fimc_fmt *fmt; u32 max_width, mod_x, mod_y, mask; - int ret, i, is_output = 0; + int i, is_output = 0; + if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { if (ctx->state & FIMC_CTX_CAP) @@ -810,8 +806,6 @@ int fimc_vidioc_try_fmt_mplane(struct file *file, void *priv, return -EINVAL; } - if (mutex_lock_interruptible(&fimc->lock)) - return -ERESTARTSYS; dbg("w: %d, h: %d", pix->width, pix->height); mask = is_output ? FMT_FLAGS_M2M : FMT_FLAGS_M2M | FMT_FLAGS_CAM; @@ -819,13 +813,13 @@ int fimc_vidioc_try_fmt_mplane(struct file *file, void *priv, if (!fmt) { v4l2_err(&fimc->m2m.v4l2_dev, "Fourcc format (0x%X) invalid.\n", pix->pixelformat); - goto tf_out; + return -EINVAL; } if (pix->field == V4L2_FIELD_ANY) pix->field = V4L2_FIELD_NONE; else if (V4L2_FIELD_NONE != pix->field) - goto tf_out; + return -EINVAL; if (is_output) { max_width = variant->pix_limit->scaler_dis_w; @@ -871,11 +865,7 @@ int fimc_vidioc_try_fmt_mplane(struct file *file, void *priv, pix->plane_fmt[i].sizeimage); } - ret = 0; - -tf_out: - mutex_unlock(&fimc->lock); - return ret; + return 0; } static int fimc_m2m_s_fmt_mplane(struct file *file, void *priv, @@ -888,45 +878,33 @@ static int fimc_m2m_s_fmt_mplane(struct file *file, void *priv, struct v4l2_pix_format_mplane *pix; unsigned long flags; int i, ret = 0; + u32 tmp; ret = fimc_vidioc_try_fmt_mplane(file, priv, f); if (ret) return ret; - if (mutex_lock_interruptible(&fimc->lock)) - return -ERESTARTSYS; - vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type); if (vb2_is_streaming(vq)) { - v4l2_err(&fimc->vid_cap.v4l2_dev, "%s: queue (%d) busy\n", - __func__, f->type); - ret = -EBUSY; - goto sf_out; + v4l2_err(&fimc->m2m.v4l2_dev, "queue (%d) busy\n", f->type); + return -EBUSY; } - spin_lock_irqsave(&ctx->slock, flags); if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { frame = &ctx->s_frame; - ctx->state |= FIMC_SRC_FMT; } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { frame = &ctx->d_frame; - ctx->state |= FIMC_DST_FMT; } else { - spin_unlock_irqrestore(&ctx->slock, flags); v4l2_err(&fimc->m2m.v4l2_dev, "Wrong buffer/video queue type (%d)\n", f->type); - ret = -EINVAL; - goto sf_out; + return -EINVAL; } - spin_unlock_irqrestore(&ctx->slock, flags); pix = &f->fmt.pix_mp; frame->fmt = find_format(f, FMT_FLAGS_M2M); - if (!frame->fmt) { - ret = -EINVAL; - goto sf_out; - } + if (!frame->fmt) + return -EINVAL; for (i = 0; i < frame->fmt->colplanes; i++) frame->payload[i] = pix->plane_fmt[i].bytesperline * pix->height; @@ -942,14 +920,13 @@ static int fimc_m2m_s_fmt_mplane(struct file *file, void *priv, frame->offs_v = 0; spin_lock_irqsave(&ctx->slock, flags); - ctx->state |= FIMC_PARAMS; + tmp = (frame == &ctx->d_frame) ? FIMC_DST_FMT : FIMC_SRC_FMT; + ctx->state |= FIMC_PARAMS | tmp; spin_unlock_irqrestore(&ctx->slock, flags); dbg("f_w: %d, f_h: %d", frame->f_width, frame->f_height); -sf_out: - mutex_unlock(&fimc->lock); - return ret; + return 0; } static int fimc_m2m_reqbufs(struct file *file, void *priv, @@ -1018,11 +995,8 @@ int fimc_vidioc_queryctrl(struct file *file, void *priv, } if (ctx->state & FIMC_CTX_CAP) { - if (mutex_lock_interruptible(&ctx->fimc_dev->lock)) - return -ERESTARTSYS; - ret = v4l2_subdev_call(ctx->fimc_dev->vid_cap.sd, + return v4l2_subdev_call(ctx->fimc_dev->vid_cap.sd, core, queryctrl, qc); - mutex_unlock(&ctx->fimc_dev->lock); } return ret; } @@ -1032,10 +1006,6 @@ int fimc_vidioc_g_ctrl(struct file *file, void *priv, { struct fimc_ctx *ctx = priv; struct fimc_dev *fimc = ctx->fimc_dev; - int ret = 0; - - if (mutex_lock_interruptible(&fimc->lock)) - return -ERESTARTSYS; switch (ctrl->id) { case V4L2_CID_HFLIP: @@ -1049,18 +1019,17 @@ int fimc_vidioc_g_ctrl(struct file *file, void *priv, break; default: if (ctx->state & FIMC_CTX_CAP) { - ret = v4l2_subdev_call(fimc->vid_cap.sd, core, - g_ctrl, ctrl); + return v4l2_subdev_call(fimc->vid_cap.sd, core, + g_ctrl, ctrl); } else { v4l2_err(&fimc->m2m.v4l2_dev, "Invalid control\n"); - ret = -EINVAL; + return -EINVAL; } } dbg("ctrl->value= %d", ctrl->value); - mutex_unlock(&fimc->lock); - return ret; + return 0; } int check_ctrl_val(struct fimc_ctx *ctx, struct v4l2_control *ctrl) @@ -1151,22 +1120,17 @@ static int fimc_m2m_cropcap(struct file *file, void *fh, { struct fimc_frame *frame; struct fimc_ctx *ctx = fh; - struct fimc_dev *fimc = ctx->fimc_dev; frame = ctx_get_frame(ctx, cr->type); if (IS_ERR(frame)) return PTR_ERR(frame); - if (mutex_lock_interruptible(&fimc->lock)) - return -ERESTARTSYS; - cr->bounds.left = 0; cr->bounds.top = 0; cr->bounds.width = frame->f_width; cr->bounds.height = frame->f_height; cr->defrect = cr->bounds; - mutex_unlock(&fimc->lock); return 0; } @@ -1174,21 +1138,16 @@ static int fimc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr) { struct fimc_frame *frame; struct fimc_ctx *ctx = file->private_data; - struct fimc_dev *fimc = ctx->fimc_dev; frame = ctx_get_frame(ctx, cr->type); if (IS_ERR(frame)) return PTR_ERR(frame); - if (mutex_lock_interruptible(&fimc->lock)) - return -ERESTARTSYS; - cr->c.left = frame->offs_h; cr->c.top = frame->offs_v; cr->c.width = frame->width; cr->c.height = frame->height; - mutex_unlock(&fimc->lock); return 0; } @@ -1268,9 +1227,6 @@ static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr) f = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) ? &ctx->s_frame : &ctx->d_frame; - if (mutex_lock_interruptible(&fimc->lock)) - return -ERESTARTSYS; - spin_lock_irqsave(&ctx->slock, flags); if (~ctx->state & (FIMC_SRC_FMT | FIMC_DST_FMT)) { /* Check to see if scaling ratio is within supported range */ @@ -1280,8 +1236,8 @@ static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr) ret = fimc_check_scaler_ratio(&cr->c, &ctx->s_frame); if (ret) { v4l2_err(&fimc->m2m.v4l2_dev, "Out of scaler range"); - ret = -EINVAL; - goto scr_unlock; + spin_unlock_irqrestore(&ctx->slock, flags); + return -EINVAL; } } ctx->state |= FIMC_PARAMS; @@ -1291,9 +1247,7 @@ static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr) f->width = cr->c.width; f->height = cr->c.height; -scr_unlock: spin_unlock_irqrestore(&ctx->slock, flags); - mutex_unlock(&fimc->lock); return 0; } @@ -1364,10 +1318,6 @@ static int fimc_m2m_open(struct file *file) { struct fimc_dev *fimc = video_drvdata(file); struct fimc_ctx *ctx = NULL; - int err = 0; - - if (mutex_lock_interruptible(&fimc->lock)) - return -ERESTARTSYS; dbg("pid: %d, state: 0x%lx, refcnt: %d", task_pid_nr(current), fimc->state, fimc->vid_cap.refcnt); @@ -1376,19 +1326,15 @@ static int fimc_m2m_open(struct file *file) * Return if the corresponding video capture node * is already opened. */ - if (fimc->vid_cap.refcnt > 0) { - err = -EBUSY; - goto err_unlock; - } + if (fimc->vid_cap.refcnt > 0) + return -EBUSY; fimc->m2m.refcnt++; set_bit(ST_OUTDMA_RUN, &fimc->state); ctx = kzalloc(sizeof *ctx, GFP_KERNEL); - if (!ctx) { - err = -ENOMEM; - goto err_unlock; - } + if (!ctx) + return -ENOMEM; file->private_data = ctx; ctx->fimc_dev = fimc; @@ -1404,13 +1350,12 @@ static int fimc_m2m_open(struct file *file) ctx->m2m_ctx = v4l2_m2m_ctx_init(fimc->m2m.m2m_dev, ctx, queue_init); if (IS_ERR(ctx->m2m_ctx)) { - err = PTR_ERR(ctx->m2m_ctx); + int err = PTR_ERR(ctx->m2m_ctx); kfree(ctx); + return err; } -err_unlock: - mutex_unlock(&fimc->lock); - return err; + return 0; } static int fimc_m2m_release(struct file *file) @@ -1418,8 +1363,6 @@ static int fimc_m2m_release(struct file *file) struct fimc_ctx *ctx = file->private_data; struct fimc_dev *fimc = ctx->fimc_dev; - mutex_lock(&fimc->lock); - dbg("pid: %d, state: 0x%lx, refcnt= %d", task_pid_nr(current), fimc->state, fimc->m2m.refcnt); @@ -1428,7 +1371,6 @@ static int fimc_m2m_release(struct file *file) if (--fimc->m2m.refcnt <= 0) clear_bit(ST_OUTDMA_RUN, &fimc->state); - mutex_unlock(&fimc->lock); return 0; } @@ -1494,6 +1436,7 @@ static int fimc_register_m2m_device(struct fimc_dev *fimc) vfd->ioctl_ops = &fimc_m2m_ioctl_ops; vfd->minor = -1; vfd->release = video_device_release; + vfd->lock = &fimc->lock; snprintf(vfd->name, sizeof(vfd->name), "%s:m2m", dev_name(&pdev->dev)); |