#include <media/videobuf2-core.h>
#include <media/videobuf2-dma-contig.h>
+#include "fimc-mdevice.h"
#include "fimc-core.h"
static void fimc_capture_state_cleanup(struct fimc_dev *fimc)
.stop_streaming = stop_streaming,
};
+/**
+ * fimc_capture_ctrls_create - initialize the control handler
+ * Initialize the capture video node control handler and fill it
+ * with the FIMC controls. Inherit any sensor's controls if the
+ * 'user_subdev_api' flag is false (default behaviour).
+ * This function need to be called with the graph mutex held.
+ */
+int fimc_capture_ctrls_create(struct fimc_dev *fimc)
+{
+ struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
+ int ret;
+
+ if (WARN_ON(vid_cap->ctx == NULL))
+ return -ENXIO;
+ if (vid_cap->ctx->ctrls_rdy)
+ return 0;
+
+ ret = fimc_ctrls_create(vid_cap->ctx);
+ if (ret || vid_cap->user_subdev_api)
+ return ret;
+
+ return v4l2_ctrl_add_handler(&vid_cap->ctx->ctrl_handler,
+ fimc->pipeline.sensor->ctrl_handler);
+}
+
static int fimc_capture_open(struct file *file)
{
struct fimc_dev *fimc = video_drvdata(file);
return ret;
}
- ++fimc->vid_cap.refcnt;
+ if (++fimc->vid_cap.refcnt == 1)
+ ret = fimc_capture_ctrls_create(fimc);
- return 0;
+ return ret;
}
static int fimc_capture_close(struct file *file)
if (--fimc->vid_cap.refcnt == 0) {
fimc_stop_capture(fimc);
+ fimc_ctrls_delete(fimc->vid_cap.ctx);
vb2_queue_release(&fimc->vid_cap.vbq);
}
return vb2_dqbuf(&fimc->vid_cap.vbq, buf, file->f_flags & O_NONBLOCK);
}
-static int fimc_cap_s_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- struct fimc_dev *fimc = video_drvdata(file);
- struct fimc_ctx *ctx = fimc->vid_cap.ctx;
- int ret = -EINVAL;
-
- /* Allow any controls but 90/270 rotation while streaming */
- if (!fimc_capture_active(ctx->fimc_dev) ||
- ctrl->id != V4L2_CID_ROTATE ||
- (ctrl->value != 90 && ctrl->value != 270)) {
- ret = check_ctrl_val(ctx, ctrl);
- if (!ret) {
- ret = fimc_s_ctrl(ctx, ctrl);
- if (!ret)
- ctx->state |= FIMC_PARAMS;
- }
- }
- if (ret == -EINVAL)
- ret = v4l2_subdev_call(ctx->fimc_dev->vid_cap.sd,
- core, s_ctrl, ctrl);
- return ret;
-}
-
static int fimc_cap_cropcap(struct file *file, void *fh,
struct v4l2_cropcap *cr)
{
.vidioc_streamon = fimc_cap_streamon,
.vidioc_streamoff = fimc_cap_streamoff,
- .vidioc_queryctrl = fimc_vidioc_queryctrl,
- .vidioc_g_ctrl = fimc_vidioc_g_ctrl,
- .vidioc_s_ctrl = fimc_cap_s_ctrl,
-
.vidioc_g_crop = fimc_cap_g_crop,
.vidioc_s_crop = fimc_cap_s_crop,
.vidioc_cropcap = fimc_cap_cropcap,
if (ret)
goto err_ent;
+ vfd->ctrl_handler = &ctx->ctrl_handler;
return 0;
err_ent:
},
};
-static struct v4l2_queryctrl fimc_ctrls[] = {
- {
- .id = V4L2_CID_HFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Horizontal flip",
- .minimum = 0,
- .maximum = 1,
- .default_value = 0,
- }, {
- .id = V4L2_CID_VFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Vertical flip",
- .minimum = 0,
- .maximum = 1,
- .default_value = 0,
- }, {
- .id = V4L2_CID_ROTATE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Rotation (CCW)",
- .minimum = 0,
- .maximum = 270,
- .step = 90,
- .default_value = 0,
- },
-};
-
-
-static struct v4l2_queryctrl *get_ctrl(int id)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(fimc_ctrls); ++i)
- if (id == fimc_ctrls[i].id)
- return &fimc_ctrls[i];
- return NULL;
-}
-
int fimc_check_scaler_ratio(int sw, int sh, int dw, int dh, int rot)
{
int tx, ty;
.start_streaming = start_streaming,
};
+/*
+ * V4L2 controls handling
+ */
+#define ctrl_to_ctx(__ctrl) \
+ container_of((__ctrl)->handler, struct fimc_ctx, ctrl_handler)
+
+static int fimc_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct fimc_ctx *ctx = ctrl_to_ctx(ctrl);
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct samsung_fimc_variant *variant = fimc->variant;
+ unsigned long flags;
+ int ret = 0;
+
+ if (ctrl->flags & V4L2_CTRL_FLAG_INACTIVE)
+ return 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_HFLIP:
+ spin_lock_irqsave(&ctx->slock, flags);
+ ctx->hflip = ctrl->val;
+ break;
+
+ case V4L2_CID_VFLIP:
+ spin_lock_irqsave(&ctx->slock, flags);
+ ctx->vflip = ctrl->val;
+ break;
+
+ case V4L2_CID_ROTATE:
+ if (fimc_capture_pending(fimc) ||
+ fimc_ctx_state_is_set(FIMC_DST_FMT | FIMC_SRC_FMT, ctx)) {
+ ret = fimc_check_scaler_ratio(ctx->s_frame.width,
+ ctx->s_frame.height, ctx->d_frame.width,
+ ctx->d_frame.height, ctrl->val);
+ }
+ if (ret) {
+ v4l2_err(fimc->m2m.vfd, "Out of scaler range\n");
+ return -EINVAL;
+ }
+ if ((ctrl->val == 90 || ctrl->val == 270) &&
+ !variant->has_out_rot)
+ return -EINVAL;
+ spin_lock_irqsave(&ctx->slock, flags);
+ ctx->rotation = ctrl->val;
+ break;
+
+ default:
+ v4l2_err(fimc->v4l2_dev, "Invalid control: 0x%X\n", ctrl->id);
+ return -EINVAL;
+ }
+ ctx->state |= FIMC_PARAMS;
+ set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
+ spin_unlock_irqrestore(&ctx->slock, flags);
+ return 0;
+}
+
+static const struct v4l2_ctrl_ops fimc_ctrl_ops = {
+ .s_ctrl = fimc_s_ctrl,
+};
+
+int fimc_ctrls_create(struct fimc_ctx *ctx)
+{
+ if (ctx->ctrls_rdy)
+ return 0;
+ v4l2_ctrl_handler_init(&ctx->ctrl_handler, 3);
+
+ ctx->ctrl_rotate = v4l2_ctrl_new_std(&ctx->ctrl_handler, &fimc_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+ ctx->ctrl_hflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, &fimc_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+ ctx->ctrl_vflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, &fimc_ctrl_ops,
+ V4L2_CID_ROTATE, 0, 270, 90, 0);
+ ctx->ctrls_rdy = ctx->ctrl_handler.error == 0;
+
+ return ctx->ctrl_handler.error;
+}
+
+void fimc_ctrls_delete(struct fimc_ctx *ctx)
+{
+ if (ctx->ctrls_rdy) {
+ v4l2_ctrl_handler_free(&ctx->ctrl_handler);
+ ctx->ctrls_rdy = false;
+ }
+}
+
+void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active)
+{
+ if (!ctx->ctrls_rdy)
+ return;
+
+ mutex_lock(&ctx->ctrl_handler.lock);
+ v4l2_ctrl_activate(ctx->ctrl_rotate, active);
+ v4l2_ctrl_activate(ctx->ctrl_hflip, active);
+ v4l2_ctrl_activate(ctx->ctrl_vflip, active);
+
+ if (active) {
+ ctx->rotation = ctx->ctrl_rotate->val;
+ ctx->hflip = ctx->ctrl_hflip->val;
+ ctx->vflip = ctx->ctrl_vflip->val;
+ } else {
+ ctx->rotation = 0;
+ ctx->hflip = 0;
+ ctx->vflip = 0;
+ }
+ mutex_unlock(&ctx->ctrl_handler.lock);
+}
+
+/*
+ * V4L2 ioctl handlers
+ */
static int fimc_m2m_querycap(struct file *file, void *fh,
struct v4l2_capability *cap)
{
return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
}
-int fimc_vidioc_queryctrl(struct file *file, void *fh,
- struct v4l2_queryctrl *qc)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
- struct fimc_dev *fimc = ctx->fimc_dev;
- struct v4l2_queryctrl *c;
- int ret = -EINVAL;
-
- c = get_ctrl(qc->id);
- if (c) {
- *qc = *c;
- return 0;
- }
-
- if (fimc_ctx_state_is_set(FIMC_CTX_CAP, ctx)) {
- return v4l2_subdev_call(ctx->fimc_dev->vid_cap.sd,
- core, queryctrl, qc);
- }
- return ret;
-}
-
-int fimc_vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
- struct fimc_dev *fimc = ctx->fimc_dev;
-
- switch (ctrl->id) {
- case V4L2_CID_HFLIP:
- ctrl->value = (FLIP_X_AXIS & ctx->flip) ? 1 : 0;
- break;
- case V4L2_CID_VFLIP:
- ctrl->value = (FLIP_Y_AXIS & ctx->flip) ? 1 : 0;
- break;
- case V4L2_CID_ROTATE:
- ctrl->value = ctx->rotation;
- break;
- default:
- if (fimc_ctx_state_is_set(FIMC_CTX_CAP, ctx)) {
- return v4l2_subdev_call(fimc->vid_cap.sd, core,
- g_ctrl, ctrl);
- } else {
- v4l2_err(fimc->m2m.vfd, "Invalid control\n");
- return -EINVAL;
- }
- }
- dbg("ctrl->value= %d", ctrl->value);
-
- return 0;
-}
-
-int check_ctrl_val(struct fimc_ctx *ctx, struct v4l2_control *ctrl)
-{
- struct v4l2_queryctrl *c;
- c = get_ctrl(ctrl->id);
- if (!c)
- return -EINVAL;
-
- if (ctrl->value < c->minimum || ctrl->value > c->maximum
- || (c->step != 0 && ctrl->value % c->step != 0)) {
- v4l2_err(ctx->fimc_dev->m2m.vfd, "Invalid control value\n");
- return -ERANGE;
- }
-
- return 0;
-}
-
-int fimc_s_ctrl(struct fimc_ctx *ctx, struct v4l2_control *ctrl)
-{
- struct samsung_fimc_variant *variant = ctx->fimc_dev->variant;
- struct fimc_dev *fimc = ctx->fimc_dev;
- int ret = 0;
-
- switch (ctrl->id) {
- case V4L2_CID_HFLIP:
- if (ctrl->value)
- ctx->flip |= FLIP_X_AXIS;
- else
- ctx->flip &= ~FLIP_X_AXIS;
- break;
-
- case V4L2_CID_VFLIP:
- if (ctrl->value)
- ctx->flip |= FLIP_Y_AXIS;
- else
- ctx->flip &= ~FLIP_Y_AXIS;
- break;
-
- case V4L2_CID_ROTATE:
- if (fimc_ctx_state_is_set(FIMC_DST_FMT | FIMC_SRC_FMT, ctx)) {
- ret = fimc_check_scaler_ratio(ctx->s_frame.width,
- ctx->s_frame.height, ctx->d_frame.width,
- ctx->d_frame.height, ctrl->value);
- }
-
- if (ret) {
- v4l2_err(fimc->m2m.vfd, "Out of scaler range\n");
- return -EINVAL;
- }
-
- /* Check for the output rotator availability */
- if ((ctrl->value == 90 || ctrl->value == 270) &&
- (ctx->in_path == FIMC_DMA && !variant->has_out_rot))
- return -EINVAL;
- ctx->rotation = ctrl->value;
- break;
-
- default:
- v4l2_err(fimc->v4l2_dev, "Invalid control\n");
- return -EINVAL;
- }
-
- fimc_ctx_state_lock_set(FIMC_PARAMS, ctx);
-
- return 0;
-}
-
-static int fimc_m2m_s_ctrl(struct file *file, void *fh,
- struct v4l2_control *ctrl)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
- int ret = 0;
-
- ret = check_ctrl_val(ctx, ctrl);
- if (ret)
- return ret;
-
- ret = fimc_s_ctrl(ctx, ctrl);
- return 0;
-}
-
static int fimc_m2m_cropcap(struct file *file, void *fh,
struct v4l2_cropcap *cr)
{
.vidioc_streamon = fimc_m2m_streamon,
.vidioc_streamoff = fimc_m2m_streamoff,
- .vidioc_queryctrl = fimc_vidioc_queryctrl,
- .vidioc_g_ctrl = fimc_vidioc_g_ctrl,
- .vidioc_s_ctrl = fimc_m2m_s_ctrl,
-
.vidioc_g_crop = fimc_m2m_g_crop,
.vidioc_s_crop = fimc_m2m_s_crop,
.vidioc_cropcap = fimc_m2m_cropcap
if (!ctx)
return -ENOMEM;
v4l2_fh_init(&ctx->fh, fimc->m2m.vfd);
+ 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);
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_fh;
+ 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);
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);
#include <media/media-entity.h>
#include <media/videobuf2-core.h>
+#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-mem2mem.h>
#include <media/v4l2-mediabus.h>
ST_CAPT_STREAM,
ST_CAPT_SHUT,
ST_CAPT_BUSY,
+ ST_CAPT_APPLY_CFG,
};
#define fimc_m2m_active(dev) test_bit(ST_M2M_RUN, &(dev)->state)
/* Y (16 ~ 235), Cb/Cr (16 ~ 240) */
#define FIMC_COLOR_RANGE_NARROW (1 << 3)
-#define FLIP_NONE 0
-#define FLIP_X_AXIS 1
-#define FLIP_Y_AXIS 2
-#define FLIP_XY_AXIS (FLIP_X_AXIS | FLIP_Y_AXIS)
-
/**
* struct fimc_fmt - the driver's internal color format data
* @mbus_code: Media Bus pixel code, -1 if not applicable
* @scaler: image scaler properties
* @effect: image effect
* @rotation: image clockwise rotation in degrees
- * @flip: image flip mode
+ * @hflip: indicates image horizontal flip if set
+ * @vflip: indicates image vertical flip if set
* @flags: additional flags for image conversion
* @state: flags to keep track of user configuration
* @fimc_dev: the FIMC device this context applies to
* @m2m_ctx: memory-to-memory device context
* @fh: v4l2 file handle
+ * @ctrl_handler: v4l2 controls handler
+ * @ctrl_rotate image rotation control
+ * @ctrl_hflip horizontal flip control
+ * @ctrl_vflip vartical flip control
+ * @ctrls_rdy: true if the control handler is initialized
*/
struct fimc_ctx {
spinlock_t slock;
struct fimc_scaler scaler;
struct fimc_effect effect;
int rotation;
- u32 flip;
+ unsigned int hflip:1;
+ unsigned int vflip:1;
u32 flags;
u32 state;
struct fimc_dev *fimc_dev;
struct v4l2_m2m_ctx *m2m_ctx;
struct v4l2_fh fh;
+ struct v4l2_ctrl_handler ctrl_handler;
+ struct v4l2_ctrl *ctrl_rotate;
+ struct v4l2_ctrl *ctrl_hflip;
+ struct v4l2_ctrl *ctrl_vflip;
+ bool ctrls_rdy;
};
#define fh_to_ctx(__fh) container_of(__fh, struct fimc_ctx, fh)
/* fimc-core.c */
int fimc_vidioc_enum_fmt_mplane(struct file *file, void *priv,
struct v4l2_fmtdesc *f);
-int fimc_vidioc_queryctrl(struct file *file, void *priv,
- struct v4l2_queryctrl *qc);
-int fimc_vidioc_g_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl);
-
int fimc_try_fmt_mplane(struct fimc_ctx *ctx, struct v4l2_format *f);
int fimc_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr);
-int check_ctrl_val(struct fimc_ctx *ctx, struct v4l2_control *ctrl);
-int fimc_s_ctrl(struct fimc_ctx *ctx, struct v4l2_control *ctrl);
+int fimc_ctrls_create(struct fimc_ctx *ctx);
+void fimc_ctrls_delete(struct fimc_ctx *ctx);
+void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active);
int fimc_fill_format(struct fimc_frame *frame, struct v4l2_format *f);
struct fimc_fmt *find_format(struct v4l2_format *f, unsigned int mask);
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);
int fimc_capture_suspend(struct fimc_dev *fimc);
projects / kernel / kernel-generic.git / commitdiff