diff options
Diffstat (limited to 'drivers/media/video/mt9t112.c')
| -rw-r--r-- | drivers/media/video/mt9t112.c | 269 |
1 files changed, 117 insertions, 152 deletions
diff --git a/drivers/media/video/mt9t112.c b/drivers/media/video/mt9t112.c index d2e0a50063a2..32114a3c0ca7 100644 --- a/drivers/media/video/mt9t112.c +++ b/drivers/media/video/mt9t112.c @@ -22,11 +22,11 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/slab.h> +#include <linux/v4l2-mediabus.h> #include <linux/videodev2.h> #include <media/mt9t112.h> #include <media/soc_camera.h> -#include <media/soc_mediabus.h> #include <media/v4l2-chip-ident.h> #include <media/v4l2-common.h> @@ -34,11 +34,7 @@ /* #define EXT_CLOCK 24000000 */ /************************************************************************ - - macro - - ************************************************************************/ /* * frame size @@ -80,17 +76,8 @@ #define VAR8(id, offset) _VAR(id, offset, 0x8000) /************************************************************************ - - struct - - ************************************************************************/ -struct mt9t112_frame_size { - u16 width; - u16 height; -}; - struct mt9t112_format { enum v4l2_mbus_pixelcode code; enum v4l2_colorspace colorspace; @@ -102,21 +89,17 @@ struct mt9t112_priv { struct v4l2_subdev subdev; struct mt9t112_camera_info *info; struct i2c_client *client; - struct soc_camera_device icd; - struct mt9t112_frame_size frame; + struct v4l2_rect frame; const struct mt9t112_format *format; int model; u32 flags; /* for flags */ -#define INIT_DONE (1<<0) +#define INIT_DONE (1 << 0) +#define PCLK_RISING (1 << 1) }; /************************************************************************ - - supported format - - ************************************************************************/ static const struct mt9t112_format mt9t112_cfmts[] = { @@ -154,11 +137,7 @@ static const struct mt9t112_format mt9t112_cfmts[] = { }; /************************************************************************ - - general function - - ************************************************************************/ static struct mt9t112_priv *to_mt9t112(const struct i2c_client *client) { @@ -326,50 +305,47 @@ static int mt9t112_clock_info(const struct i2c_client *client, u32 ext) n = (n >> 8) & 0x003f; enable = ((6000 > ext) || (54000 < ext)) ? "X" : ""; - dev_info(&client->dev, "EXTCLK : %10u K %s\n", ext, enable); + dev_dbg(&client->dev, "EXTCLK : %10u K %s\n", ext, enable); vco = 2 * m * ext / (n+1); enable = ((384000 > vco) || (768000 < vco)) ? "X" : ""; - dev_info(&client->dev, "VCO : %10u K %s\n", vco, enable); + dev_dbg(&client->dev, "VCO : %10u K %s\n", vco, enable); clk = vco / (p1+1) / (p2+1); enable = (96000 < clk) ? "X" : ""; - dev_info(&client->dev, "PIXCLK : %10u K %s\n", clk, enable); + dev_dbg(&client->dev, "PIXCLK : %10u K %s\n", clk, enable); clk = vco / (p3+1); enable = (768000 < clk) ? "X" : ""; - dev_info(&client->dev, "MIPICLK : %10u K %s\n", clk, enable); + dev_dbg(&client->dev, "MIPICLK : %10u K %s\n", clk, enable); clk = vco / (p6+1); enable = (96000 < clk) ? "X" : ""; - dev_info(&client->dev, "MCU CLK : %10u K %s\n", clk, enable); + dev_dbg(&client->dev, "MCU CLK : %10u K %s\n", clk, enable); clk = vco / (p5+1); enable = (54000 < clk) ? "X" : ""; - dev_info(&client->dev, "SOC CLK : %10u K %s\n", clk, enable); + dev_dbg(&client->dev, "SOC CLK : %10u K %s\n", clk, enable); clk = vco / (p4+1); enable = (70000 < clk) ? "X" : ""; - dev_info(&client->dev, "Sensor CLK : %10u K %s\n", clk, enable); + dev_dbg(&client->dev, "Sensor CLK : %10u K %s\n", clk, enable); clk = vco / (p7+1); - dev_info(&client->dev, "External sensor : %10u K\n", clk); + dev_dbg(&client->dev, "External sensor : %10u K\n", clk); clk = ext / (n+1); enable = ((2000 > clk) || (24000 < clk)) ? "X" : ""; - dev_info(&client->dev, "PFD : %10u K %s\n", clk, enable); + dev_dbg(&client->dev, "PFD : %10u K %s\n", clk, enable); return 0; } #endif -static void mt9t112_frame_check(u32 *width, u32 *height) +static void mt9t112_frame_check(u32 *width, u32 *height, u32 *left, u32 *top) { - if (*width > MAX_WIDTH) - *width = MAX_WIDTH; - - if (*height > MAX_HEIGHT) - *height = MAX_HEIGHT; + soc_camera_limit_side(left, width, 0, 0, MAX_WIDTH); + soc_camera_limit_side(top, height, 0, 0, MAX_HEIGHT); } static int mt9t112_set_a_frame_size(const struct i2c_client *client, @@ -758,48 +734,7 @@ static int mt9t112_init_camera(const struct i2c_client *client) } /************************************************************************ - - - soc_camera_ops - - -************************************************************************/ -static int mt9t112_set_bus_param(struct soc_camera_device *icd, - unsigned long flags) -{ - return 0; -} - -static unsigned long mt9t112_query_bus_param(struct soc_camera_device *icd) -{ - struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd)); - struct mt9t112_priv *priv = to_mt9t112(client); - struct soc_camera_link *icl = to_soc_camera_link(icd); - unsigned long flags = SOCAM_MASTER | SOCAM_VSYNC_ACTIVE_HIGH | - SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_DATA_ACTIVE_HIGH; - - flags |= (priv->info->flags & MT9T112_FLAG_PCLK_RISING_EDGE) ? - SOCAM_PCLK_SAMPLE_RISING : SOCAM_PCLK_SAMPLE_FALLING; - - if (priv->info->flags & MT9T112_FLAG_DATAWIDTH_8) - flags |= SOCAM_DATAWIDTH_8; - else - flags |= SOCAM_DATAWIDTH_10; - - return soc_camera_apply_sensor_flags(icl, flags); -} - -static struct soc_camera_ops mt9t112_ops = { - .set_bus_param = mt9t112_set_bus_param, - .query_bus_param = mt9t112_query_bus_param, -}; - -/************************************************************************ - - v4l2_subdev_core_ops - - ************************************************************************/ static int mt9t112_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *id) @@ -850,11 +785,7 @@ static struct v4l2_subdev_core_ops mt9t112_subdev_core_ops = { /************************************************************************ - - v4l2_subdev_video_ops - - ************************************************************************/ static int mt9t112_s_stream(struct v4l2_subdev *sd, int enable) { @@ -877,8 +808,7 @@ static int mt9t112_s_stream(struct v4l2_subdev *sd, int enable) } if (!(priv->flags & INIT_DONE)) { - u16 param = (MT9T112_FLAG_PCLK_RISING_EDGE & - priv->info->flags) ? 0x0001 : 0x0000; + u16 param = PCLK_RISING & priv->flags ? 0x0001 : 0x0000; ECHECKER(ret, mt9t112_init_camera(client)); @@ -910,19 +840,12 @@ static int mt9t112_s_stream(struct v4l2_subdev *sd, int enable) return ret; } -static int mt9t112_set_params(struct i2c_client *client, u32 width, u32 height, +static int mt9t112_set_params(struct mt9t112_priv *priv, + const struct v4l2_rect *rect, enum v4l2_mbus_pixelcode code) { - struct mt9t112_priv *priv = to_mt9t112(client); int i; - priv->format = NULL; - - /* - * frame size check - */ - mt9t112_frame_check(&width, &height); - /* * get color format */ @@ -933,8 +856,13 @@ static int mt9t112_set_params(struct i2c_client *client, u32 width, u32 height, if (i == ARRAY_SIZE(mt9t112_cfmts)) return -EINVAL; - priv->frame.width = (u16)width; - priv->frame.height = (u16)height; + priv->frame = *rect; + + /* + * frame size check + */ + mt9t112_frame_check(&priv->frame.width, &priv->frame.height, + &priv->frame.left, &priv->frame.top); priv->format = mt9t112_cfmts + i; @@ -945,9 +873,12 @@ static int mt9t112_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a) { a->bounds.left = 0; a->bounds.top = 0; - a->bounds.width = VGA_WIDTH; - a->bounds.height = VGA_HEIGHT; - a->defrect = a->bounds; + a->bounds.width = MAX_WIDTH; + a->bounds.height = MAX_HEIGHT; + a->defrect.left = 0; + a->defrect.top = 0; + a->defrect.width = VGA_WIDTH; + a->defrect.height = VGA_HEIGHT; a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; a->pixelaspect.numerator = 1; a->pixelaspect.denominator = 1; @@ -957,11 +888,11 @@ static int mt9t112_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a) static int mt9t112_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) { - a->c.left = 0; - a->c.top = 0; - a->c.width = VGA_WIDTH; - a->c.height = VGA_HEIGHT; - a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9t112_priv *priv = to_mt9t112(client); + + a->c = priv->frame; + a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; return 0; } @@ -969,10 +900,10 @@ static int mt9t112_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) static int mt9t112_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) { struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9t112_priv *priv = to_mt9t112(client); struct v4l2_rect *rect = &a->c; - return mt9t112_set_params(client, rect->width, rect->height, - V4L2_MBUS_FMT_UYVY8_2X8); + return mt9t112_set_params(priv, rect, priv->format->code); } static int mt9t112_g_fmt(struct v4l2_subdev *sd, @@ -981,16 +912,9 @@ static int mt9t112_g_fmt(struct v4l2_subdev *sd, struct i2c_client *client = v4l2_get_subdevdata(sd); struct mt9t112_priv *priv = to_mt9t112(client); - if (!priv->format) { - int ret = mt9t112_set_params(client, VGA_WIDTH, VGA_HEIGHT, - V4L2_MBUS_FMT_UYVY8_2X8); - if (ret < 0) - return ret; - } - mf->width = priv->frame.width; mf->height = priv->frame.height; - /* TODO: set colorspace */ + mf->colorspace = priv->format->colorspace; mf->code = priv->format->code; mf->field = V4L2_FIELD_NONE; @@ -1001,17 +925,42 @@ static int mt9t112_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf) { struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9t112_priv *priv = to_mt9t112(client); + struct v4l2_rect rect = { + .width = mf->width, + .height = mf->height, + .left = priv->frame.left, + .top = priv->frame.top, + }; + int ret; + + ret = mt9t112_set_params(priv, &rect, mf->code); + + if (!ret) + mf->colorspace = priv->format->colorspace; - /* TODO: set colorspace */ - return mt9t112_set_params(client, mf->width, mf->height, mf->code); + return ret; } static int mt9t112_try_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf) { - mt9t112_frame_check(&mf->width, &mf->height); + unsigned int top, left; + int i; + + for (i = 0; i < ARRAY_SIZE(mt9t112_cfmts); i++) + if (mt9t112_cfmts[i].code == mf->code) + break; + + if (i == ARRAY_SIZE(mt9t112_cfmts)) { + mf->code = V4L2_MBUS_FMT_UYVY8_2X8; + mf->colorspace = V4L2_COLORSPACE_JPEG; + } else { + mf->colorspace = mt9t112_cfmts[i].colorspace; + } + + mt9t112_frame_check(&mf->width, &mf->height, &left, &top); - /* TODO: set colorspace */ mf->field = V4L2_FIELD_NONE; return 0; @@ -1024,6 +973,35 @@ static int mt9t112_enum_fmt(struct v4l2_subdev *sd, unsigned int index, return -EINVAL; *code = mt9t112_cfmts[index].code; + + return 0; +} + +static int mt9t112_g_mbus_config(struct v4l2_subdev *sd, + struct v4l2_mbus_config *cfg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_link *icl = soc_camera_i2c_to_link(client); + + cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_VSYNC_ACTIVE_HIGH | + V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_DATA_ACTIVE_HIGH | + V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING; + cfg->type = V4L2_MBUS_PARALLEL; + cfg->flags = soc_camera_apply_board_flags(icl, cfg); + + return 0; +} + +static int mt9t112_s_mbus_config(struct v4l2_subdev *sd, + const struct v4l2_mbus_config *cfg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_link *icl = soc_camera_i2c_to_link(client); + struct mt9t112_priv *priv = to_mt9t112(client); + + if (soc_camera_apply_board_flags(icl, cfg) & V4L2_MBUS_PCLK_SAMPLE_RISING) + priv->flags |= PCLK_RISING; + return 0; } @@ -1036,31 +1014,24 @@ static struct v4l2_subdev_video_ops mt9t112_subdev_video_ops = { .g_crop = mt9t112_g_crop, .s_crop = mt9t112_s_crop, .enum_mbus_fmt = mt9t112_enum_fmt, + .g_mbus_config = mt9t112_g_mbus_config, + .s_mbus_config = mt9t112_s_mbus_config, }; /************************************************************************ - - i2c driver - - ************************************************************************/ static struct v4l2_subdev_ops mt9t112_subdev_ops = { .core = &mt9t112_subdev_core_ops, .video = &mt9t112_subdev_video_ops, }; -static int mt9t112_camera_probe(struct soc_camera_device *icd, - struct i2c_client *client) +static int mt9t112_camera_probe(struct i2c_client *client) { struct mt9t112_priv *priv = to_mt9t112(client); const char *devname; int chipid; - /* We must have a parent by now. And it cannot be a wrong one. */ - BUG_ON(!icd->parent || - to_soc_camera_host(icd->parent)->nr != icd->iface); - /* * check and show chip ID */ @@ -1088,20 +1059,21 @@ static int mt9t112_camera_probe(struct soc_camera_device *icd, static int mt9t112_probe(struct i2c_client *client, const struct i2c_device_id *did) { - struct mt9t112_priv *priv; - struct soc_camera_device *icd = client->dev.platform_data; - struct soc_camera_link *icl; - int ret; + struct mt9t112_priv *priv; + struct soc_camera_link *icl = soc_camera_i2c_to_link(client); + struct v4l2_rect rect = { + .width = VGA_WIDTH, + .height = VGA_HEIGHT, + .left = (MAX_WIDTH - VGA_WIDTH) / 2, + .top = (MAX_HEIGHT - VGA_HEIGHT) / 2, + }; + int ret; - if (!icd) { - dev_err(&client->dev, "mt9t112: missing soc-camera data!\n"); + if (!icl || !icl->priv) { + dev_err(&client->dev, "mt9t112: missing platform data!\n"); return -EINVAL; } - icl = to_soc_camera_link(icd); - if (!icl || !icl->priv) - return -EINVAL; - priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; @@ -1110,13 +1082,12 @@ static int mt9t112_probe(struct i2c_client *client, v4l2_i2c_subdev_init(&priv->subdev, client, &mt9t112_subdev_ops); - icd->ops = &mt9t112_ops; - - ret = mt9t112_camera_probe(icd, client); - if (ret) { - icd->ops = NULL; + ret = mt9t112_camera_probe(client); + if (ret) kfree(priv); - } + + /* Cannot fail: using the default supported pixel code */ + mt9t112_set_params(priv, &rect, V4L2_MBUS_FMT_UYVY8_2X8); return ret; } @@ -1124,9 +1095,7 @@ static int mt9t112_probe(struct i2c_client *client, static int mt9t112_remove(struct i2c_client *client) { struct mt9t112_priv *priv = to_mt9t112(client); - struct soc_camera_device *icd = client->dev.platform_data; - icd->ops = NULL; kfree(priv); return 0; } @@ -1147,11 +1116,7 @@ static struct i2c_driver mt9t112_i2c_driver = { }; /************************************************************************ - - module function - - ************************************************************************/ static int __init mt9t112_module_init(void) { |