diff options
Diffstat (limited to 'drivers/media/video/mt9v022.c')
-rw-r--r-- | drivers/media/video/mt9v022.c | 129 |
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, |