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path: root/drivers/media/video/mt9v022.c
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Diffstat (limited to 'drivers/media/video/mt9v022.c')
-rw-r--r--drivers/media/video/mt9v022.c129
1 files changed, 78 insertions, 51 deletions
diff --git a/drivers/media/video/mt9v022.c b/drivers/media/video/mt9v022.c
index d677344d233d..a2f161dcc72d 100644
--- a/drivers/media/video/mt9v022.c
+++ b/drivers/media/video/mt9v022.c
@@ -241,19 +241,89 @@ static int bus_switch_act(struct mt9v022 *mt9v022, int go8bit)
#endif
}
-static int mt9v022_set_capture_format(struct soc_camera_device *icd,
- __u32 pixfmt, struct v4l2_rect *rect, unsigned int flags)
+static int bus_switch_possible(struct mt9v022 *mt9v022)
+{
+#ifdef CONFIG_MT9V022_PCA9536_SWITCH
+ return gpio_is_valid(mt9v022->switch_gpio);
+#else
+ return 0;
+#endif
+}
+
+static int mt9v022_set_bus_param(struct soc_camera_device *icd,
+ unsigned long flags)
{
struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
- unsigned int width_flag = flags & (IS_DATAWIDTH_10 | IS_DATAWIDTH_9 |
- IS_DATAWIDTH_8);
- u16 pixclk = 0;
+ unsigned int width_flag = flags & SOCAM_DATAWIDTH_MASK;
int ret;
+ u16 pixclk = 0;
/* Only one width bit may be set */
if (!is_power_of_2(width_flag))
return -EINVAL;
+ if ((mt9v022->datawidth != 10 && (width_flag == SOCAM_DATAWIDTH_10)) ||
+ (mt9v022->datawidth != 9 && (width_flag == SOCAM_DATAWIDTH_9)) ||
+ (mt9v022->datawidth != 8 && (width_flag == SOCAM_DATAWIDTH_8))) {
+ /* Well, we actually only can do 10 or 8 bits... */
+ if (width_flag == SOCAM_DATAWIDTH_9)
+ return -EINVAL;
+
+ ret = bus_switch_act(mt9v022,
+ width_flag == SOCAM_DATAWIDTH_8);
+ if (ret < 0)
+ return ret;
+
+ mt9v022->datawidth = width_flag == SOCAM_DATAWIDTH_8 ? 8 : 10;
+ }
+
+ if (flags & SOCAM_PCLK_SAMPLE_RISING)
+ pixclk |= 0x10;
+
+ if (!(flags & SOCAM_HSYNC_ACTIVE_HIGH))
+ pixclk |= 0x1;
+
+ if (!(flags & SOCAM_VSYNC_ACTIVE_HIGH))
+ pixclk |= 0x2;
+
+ ret = reg_write(icd, MT9V022_PIXCLK_FV_LV, pixclk);
+ if (ret < 0)
+ return ret;
+
+ if (!(flags & SOCAM_MASTER))
+ mt9v022->chip_control &= ~0x8;
+
+ ret = reg_write(icd, MT9V022_CHIP_CONTROL, mt9v022->chip_control);
+ if (ret < 0)
+ return ret;
+
+ dev_dbg(&icd->dev, "Calculated pixclk 0x%x, chip control 0x%x\n",
+ pixclk, mt9v022->chip_control);
+
+ return 0;
+}
+
+static unsigned long mt9v022_query_bus_param(struct soc_camera_device *icd)
+{
+ struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
+ unsigned int width_flag = SOCAM_DATAWIDTH_10;
+
+ if (bus_switch_possible(mt9v022))
+ width_flag |= SOCAM_DATAWIDTH_8;
+
+ return SOCAM_PCLK_SAMPLE_RISING | SOCAM_PCLK_SAMPLE_FALLING |
+ SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_LOW |
+ SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_LOW |
+ SOCAM_MASTER | SOCAM_SLAVE |
+ width_flag;
+}
+
+static int mt9v022_set_fmt_cap(struct soc_camera_device *icd,
+ __u32 pixfmt, struct v4l2_rect *rect)
+{
+ struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
+ int ret;
+
/* The caller provides a supported format, as verified per call to
* icd->try_fmt_cap(), datawidth is from our supported format list */
switch (pixfmt) {
@@ -308,44 +378,6 @@ static int mt9v022_set_capture_format(struct soc_camera_device *icd,
dev_dbg(&icd->dev, "Frame %ux%u pixel\n", rect->width, rect->height);
- if ((mt9v022->datawidth != 10 && (width_flag == IS_DATAWIDTH_10)) ||
- (mt9v022->datawidth != 9 && (width_flag == IS_DATAWIDTH_9)) ||
- (mt9v022->datawidth != 8 && (width_flag == IS_DATAWIDTH_8))) {
- /* Well, we actually only can do 10 or 8 bits... */
- if (width_flag == IS_DATAWIDTH_9)
- return -EINVAL;
-
- ret = bus_switch_act(mt9v022,
- width_flag == IS_DATAWIDTH_8);
- if (ret < 0)
- return ret;
-
- mt9v022->datawidth = width_flag == IS_DATAWIDTH_8 ? 8 : 10;
- }
-
- if (flags & IS_PCLK_SAMPLE_RISING)
- pixclk |= 0x10;
-
- if (!(flags & IS_HSYNC_ACTIVE_HIGH))
- pixclk |= 0x1;
-
- if (!(flags & IS_VSYNC_ACTIVE_HIGH))
- pixclk |= 0x2;
-
- ret = reg_write(icd, MT9V022_PIXCLK_FV_LV, pixclk);
- if (ret < 0)
- return ret;
-
- if (!(flags & IS_MASTER))
- mt9v022->chip_control &= ~0x8;
-
- ret = reg_write(icd, MT9V022_CHIP_CONTROL, mt9v022->chip_control);
- if (ret < 0)
- return ret;
-
- dev_dbg(&icd->dev, "Calculated pixclk 0x%x, chip control 0x%x\n",
- pixclk, mt9v022->chip_control);
-
return 0;
}
@@ -420,12 +452,6 @@ static int mt9v022_set_register(struct soc_camera_device *icd,
}
#endif
-static unsigned int mt9v022_get_datawidth(struct soc_camera_device *icd)
-{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
- return mt9v022->datawidth;
-}
-
const struct v4l2_queryctrl mt9v022_controls[] = {
{
.id = V4L2_CID_VFLIP,
@@ -491,11 +517,12 @@ static struct soc_camera_ops mt9v022_ops = {
.release = mt9v022_release,
.start_capture = mt9v022_start_capture,
.stop_capture = mt9v022_stop_capture,
- .set_capture_format = mt9v022_set_capture_format,
+ .set_fmt_cap = mt9v022_set_fmt_cap,
.try_fmt_cap = mt9v022_try_fmt_cap,
+ .set_bus_param = mt9v022_set_bus_param,
+ .query_bus_param = mt9v022_query_bus_param,
.formats = NULL, /* Filled in later depending on the */
.num_formats = 0, /* sensor type and data widths */
- .get_datawidth = mt9v022_get_datawidth,
.controls = mt9v022_controls,
.num_controls = ARRAY_SIZE(mt9v022_controls),
.get_control = mt9v022_get_control,