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[media] media: coda: add horizontal / vertical flipping support

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The hardware can also rotate in 90° steps, but there is no
corresponding V4L2_CID defined yet.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Philipp Zabel 2012-07-09 04:25:52 -03:00 committed by Mauro Carvalho Chehab
parent 451d43ad44
commit 8f35c7bc26
2 changed files with 27 additions and 1 deletions
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19
drivers/media/platform/coda.c
View File

@ -141,6 +141,7 @@ struct coda_dev {
};
struct coda_params {
u8 rot_mode;
u8 h264_intra_qp;
u8 h264_inter_qp;
u8 mpeg4_intra_qp;
@ -700,7 +701,7 @@ static void coda_device_run(void *m2m_priv)
}
/* submit */
coda_write(dev, 0, CODA_CMD_ENC_PIC_ROT_MODE);
coda_write(dev, CODA_ROT_MIR_ENABLE | ctx->params.rot_mode, CODA_CMD_ENC_PIC_ROT_MODE);
coda_write(dev, quant_param, CODA_CMD_ENC_PIC_QS);
@ -1276,6 +1277,18 @@ static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
"s_ctrl: id = %d, val = %d\n", ctrl->id, ctrl->val);
switch (ctrl->id) {
case V4L2_CID_HFLIP:
if (ctrl->val)
ctx->params.rot_mode |= CODA_MIR_HOR;
else
ctx->params.rot_mode &= ~CODA_MIR_HOR;
break;
case V4L2_CID_VFLIP:
if (ctrl->val)
ctx->params.rot_mode |= CODA_MIR_VER;
else
ctx->params.rot_mode &= ~CODA_MIR_VER;
break;
case V4L2_CID_MPEG_VIDEO_BITRATE:
ctx->params.bitrate = ctrl->val / 1000;
break;
@ -1320,6 +1333,10 @@ static int coda_ctrls_setup(struct coda_ctx *ctx)
{
v4l2_ctrl_handler_init(&ctx->ctrls, 9);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_HFLIP, 0, 1, 1, 0);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_VFLIP, 0, 1, 1, 0);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1, 0);
v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,

9
drivers/media/platform/coda.h
View File

@ -188,6 +188,15 @@
#define CODA_CMD_ENC_PIC_SRC_ADDR_CR 0x188
#define CODA_CMD_ENC_PIC_QS 0x18c
#define CODA_CMD_ENC_PIC_ROT_MODE 0x190
#define CODA_ROT_MIR_ENABLE (1 << 4)
#define CODA_ROT_0 (0x0 << 0)
#define CODA_ROT_90 (0x1 << 0)
#define CODA_ROT_180 (0x2 << 0)
#define CODA_ROT_270 (0x3 << 0)
#define CODA_MIR_NONE (0x0 << 2)
#define CODA_MIR_VER (0x1 << 2)
#define CODA_MIR_HOR (0x2 << 2)
#define CODA_MIR_VER_HOR (0x3 << 2)
#define CODA_CMD_ENC_PIC_OPTION 0x194
#define CODA_CMD_ENC_PIC_BB_START 0x198
#define CODA_CMD_ENC_PIC_BB_SIZE 0x19c