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[media] V4L: mt9v022: support the new mbus-config subdev ops 

Extend the driver to also support [gs]_mbus_config() subdevice video
operations.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Guennadi Liakhovetski 2011-07-27 05:53:33 -03:00 committed by Mauro Carvalho Chehab
parent d46ebd463c
commit e8e2c70ce6
1 changed files with 75 additions and 1 deletions
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76
drivers/media/video/mt9v022.c
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@ -14,9 +14,10 @@
#include <linux/delay.h>
#include <linux/log2.h>
#include <media/soc_camera.h>
#include <media/soc_mediabus.h>
#include <media/v4l2-subdev.h>
#include <media/v4l2-chip-ident.h>
#include <media/soc_camera.h>
/*
* mt9v022 i2c address 0x48, 0x4c, 0x58, 0x5c
@ -848,6 +849,77 @@ static int mt9v022_enum_fmt(struct v4l2_subdev *sd, unsigned int index,
return 0;
}
static int mt9v022_g_mbus_config(struct v4l2_subdev *sd,
struct v4l2_mbus_config *cfg)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct soc_camera_device *icd = client->dev.platform_data;
struct soc_camera_link *icl = to_soc_camera_link(icd);
cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_SLAVE |
V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING |
V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_LOW |
V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW |
V4L2_MBUS_DATA_ACTIVE_HIGH;
cfg->type = V4L2_MBUS_PARALLEL;
cfg->flags = soc_camera_apply_board_flags(icl, cfg);
return 0;
}
static int mt9v022_s_mbus_config(struct v4l2_subdev *sd,
const struct v4l2_mbus_config *cfg)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct soc_camera_device *icd = client->dev.platform_data;
struct soc_camera_link *icl = to_soc_camera_link(icd);
struct mt9v022 *mt9v022 = to_mt9v022(client);
unsigned long flags = soc_camera_apply_board_flags(icl, cfg);
unsigned int bps = soc_mbus_get_fmtdesc(icd->current_fmt->code)->bits_per_sample;
int ret;
u16 pixclk = 0;
dev_info(icd->pdev, "set %d: %s, %dbps\n", icd->current_fmt->code,
icd->current_fmt->host_fmt->name, bps);
if (icl->set_bus_param) {
ret = icl->set_bus_param(icl, 1 << (bps - 1));
if (ret)
return ret;
} else if (bps != 10) {
/*
* Without board specific bus width settings we only support the
* sensors native bus width
*/
return -EINVAL;
}
if (flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
pixclk |= 0x10;
if (!(flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH))
pixclk |= 0x1;
if (!(flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH))
pixclk |= 0x2;
ret = reg_write(client, MT9V022_PIXCLK_FV_LV, pixclk);
if (ret < 0)
return ret;
if (!(flags & V4L2_MBUS_MASTER))
mt9v022->chip_control &= ~0x8;
ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control);
if (ret < 0)
return ret;
dev_dbg(&client->dev, "Calculated pixclk 0x%x, chip control 0x%x\n",
pixclk, mt9v022->chip_control);
return 0;
}
static struct v4l2_subdev_video_ops mt9v022_subdev_video_ops = {
.s_stream = mt9v022_s_stream,
.s_mbus_fmt = mt9v022_s_fmt,
@ -857,6 +929,8 @@ static struct v4l2_subdev_video_ops mt9v022_subdev_video_ops = {
.g_crop = mt9v022_g_crop,
.cropcap = mt9v022_cropcap,
.enum_mbus_fmt = mt9v022_enum_fmt,
.g_mbus_config = mt9v022_g_mbus_config,
.s_mbus_config = mt9v022_s_mbus_config,
};
static struct v4l2_subdev_sensor_ops mt9v022_subdev_sensor_ops = {