diff options
Diffstat (limited to 'drivers/media/video/tvp5150soc.c')
| -rw-r--r-- | drivers/media/video/tvp5150soc.c | 538 |
1 files changed, 538 insertions, 0 deletions
diff --git a/drivers/media/video/tvp5150soc.c b/drivers/media/video/tvp5150soc.c new file mode 100644 index 000000000000..3cb7cd6b4dc8 --- /dev/null +++ b/drivers/media/video/tvp5150soc.c @@ -0,0 +1,538 @@ +/* + * tvp5150 - Texas Instruments TVP5150A/AM1 video decoder driver + * + * Copyright (c) 2005,2006 Mauro Carvalho Chehab (mchehab@infradead.org) + * This code is placed under the terms of the GNU General Public License v2 + */ + +#include <linux/i2c.h> +#include <linux/delay.h> +#include <linux/videodev2.h> + +#include <media/soc_camera.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-common.h> +#include <media/v4l2-chip-ident.h> +#include <media/v4l2-subdev.h> +#include <media/v4l2-ioctl.h> + +#include <media/tvp5150.h> +#include "tvp5150_reg.h" + +#define I2C_RETRY_COUNT 3 +#define LINE_PIXELS 576 +#define FRAME_LINES 520 + +#define MODULE_NAME "tvp5150soc" + +static unsigned int debug = 0; +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "debug level"); + +struct i2c_reg_value { + unsigned char reg; + unsigned char value; +}; + +static struct tvp5150soc_format_struct { + enum v4l2_mbus_pixelcode mbus_code; + enum v4l2_colorspace colorspace; +} tvp5150soc_formats[] = { + { + .mbus_code = V4L2_MBUS_FMT_YVYU8_2X8, + .colorspace = V4L2_COLORSPACE_JPEG, + }, +}; +#define N_TVP5150_FMTS ARRAY_SIZE(tvp5150soc_formats) + +struct tvp5150soc_decoder { + struct v4l2_subdev sd; + const struct tvp5150soc_format_struct *fmt_list; + struct tvp5150soc_format_struct *fmt; + int num_fmts; + int active_input; +}; + +static const struct v4l2_queryctrl tvp5150soc_controls[] = { + { + .id = V4L2_CID_BRIGHTNESS, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "brightness", + .minimum = 0, + .maximum = 255, + .step = 1, + .default_value = 128, + }, + { + .id = V4L2_CID_CONTRAST, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "contrast", + .minimum = 0, + .maximum = 207, + .step = 1, + .default_value = 128, + }, + { + .id = V4L2_CID_SATURATION, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "saturation", + .minimum = 0, + .maximum = 255, + .step = 1, + .default_value = 128, + }, + { + .id = V4L2_CID_HUE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "hue", + .minimum = -127, /*TODO: TVP5150 supports hue in range -180..180, which is equal to -127..127 reg value*/ + .maximum = 127, + .step = 1, + .default_value = 0, + }, +}; + +static inline struct tvp5150soc_decoder *to_decoder(struct v4l2_subdev *sd) +{ + return container_of(sd, struct tvp5150soc_decoder, sd); +} + +static int tvp5150soc_read_reg(struct v4l2_subdev *sd, unsigned char addr, unsigned char *val) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + int err, retry = I2C_RETRY_COUNT; + + int ccc = client->addr; + int aaa = addr; + printk(KERN_ERR "tvp5150soc_read_reg: %04X %04X\n", ccc, aaa); + + while(retry) + { + err = i2c_smbus_read_byte_data(client, addr); + if(err > 0) + break; + retry--; + msleep_interruptible(10); + } + + if(err < 0) + v4l2_dbg(0, debug, sd, "i2c i/o error: %d\n", err); + else + { + *val = (unsigned char)err; + v4l2_dbg(2, debug, sd, "tvp5150: read 0x%02x = 0x%02x\n", addr, *val); + } + + printk(KERN_ERR "tvp5150soc_read_reg result: %d\n", err); + + return err; +} + +static int tvp5150soc_write_reg(struct v4l2_subdev *sd, unsigned char addr, unsigned char val) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + int err, retry = I2C_RETRY_COUNT; + + while(retry) + { + err = i2c_smbus_write_byte_data(client, addr, val); + if(err > 0) + break; + retry--; + msleep_interruptible(10); + } + + if(err < 0) + v4l2_dbg(0, debug, sd, "i2c i/o error: %d\n", err); + else + v4l2_dbg(2, debug, sd, "tvp5150: write 0x%02x = 0x%02x\n", addr, val); + + return err; +} + +/* Default values as sugested at TVP5150AM1 datasheet */ +static const struct i2c_reg_value tvp5150soc_init_default[] = { + {TVP5150_VD_IN_SRC_SEL_1,0x00}, /* 0x00 */ + {TVP5150_ANAL_CHL_CTL,0x15}, /* 0x01 */ + {TVP5150_OP_MODE_CTL,0x00}, /* 0x02 */ + {TVP5150_MISC_CTL,0x01}, /* 0x03 */ + {TVP5150_COLOR_KIL_THSH_CTL,0x10}, /* 0x06 */ + {TVP5150_LUMA_PROC_CTL_1,0x60}, /* 0x07 */ + {TVP5150_LUMA_PROC_CTL_2,0x00}, /* 0x08 */ + {TVP5150_BRIGHT_CTL,0x80}, /* 0x09 */ + {TVP5150_SATURATION_CTL,0x80}, /* 0x0a */ + {TVP5150_HUE_CTL,0x00}, /* 0x0b */ + {TVP5150_CONTRAST_CTL,0x80}, /* 0x0c */ + {TVP5150_DATA_RATE_SEL,0x47}, /* 0x0d */ + {TVP5150_LUMA_PROC_CTL_3,0x00}, /* 0x0e */ + {TVP5150_CONF_SHARED_PIN,0x08}, /* 0x0f */ + {TVP5150_ACT_VD_CROP_ST_MSB,0x00}, /* 0x11 */ + {TVP5150_ACT_VD_CROP_ST_LSB,0x00}, /* 0x12 */ + {TVP5150_ACT_VD_CROP_STP_MSB,0x00}, /* 0x13 */ + {TVP5150_ACT_VD_CROP_STP_LSB,0x00}, /* 0x14 */ + {TVP5150_GENLOCK,0x01}, /* 0x15 */ + {TVP5150_HORIZ_SYNC_START,0x80}, /* 0x16 */ + {TVP5150_VERT_BLANKING_START,0x00}, /* 0x18 */ + {TVP5150_VERT_BLANKING_STOP,0x00}, /* 0x19 */ + {TVP5150_CHROMA_PROC_CTL_1,0x0c}, /* 0x1a */ + {TVP5150_CHROMA_PROC_CTL_2,0x14}, /* 0x1b */ + {TVP5150_INT_RESET_REG_B,0x00}, /* 0x1c */ + {TVP5150_INT_ENABLE_REG_B,0x00}, /* 0x1d */ + {TVP5150_INTT_CONFIG_REG_B,0x00}, /* 0x1e */ + {TVP5150_VIDEO_STD,0x00}, /* 0x28 */ + {TVP5150_MACROVISION_ON_CTR,0x0f}, /* 0x2e */ + {TVP5150_MACROVISION_OFF_CTR,0x01}, /* 0x2f */ + {TVP5150_TELETEXT_FIL_ENA,0x00}, /* 0xbb */ + {TVP5150_INT_STATUS_REG_A,0x00}, /* 0xc0 */ + {TVP5150_INT_ENABLE_REG_A,0x00}, /* 0xc1 */ + {TVP5150_INT_CONF,0x04}, /* 0xc2 */ + {TVP5150_FIFO_INT_THRESHOLD,0x80}, /* 0xc8 */ + {TVP5150_FIFO_RESET,0x00}, /* 0xc9 */ + {TVP5150_LINE_NUMBER_INT,0x00}, /* 0xca */ + {TVP5150_PIX_ALIGN_REG_LOW,0x4e}, /* 0xcb */ + {TVP5150_PIX_ALIGN_REG_HIGH,0x00}, /* 0xcc */ + {TVP5150_FIFO_OUT_CTRL,0x01}, /* 0xcd */ + {TVP5150_FULL_FIELD_ENA,0x00}, /* 0xcf */ + {TVP5150_LINE_MODE_INI,0x00}, /* 0xd0 */ + {TVP5150_FULL_FIELD_MODE_REG,0x7f}, /* 0xfc */ + { /* end of data */0xff,0xff} +}; + +/* Default values as sugested at TVP5150AM1 datasheet */ +static const struct i2c_reg_value tvp5150soc_init_enable[] = { + {TVP5150_VD_IN_SRC_SEL_1, 0x02}, + {TVP5150_CONF_SHARED_PIN, 0x02}, + {TVP5150_ANAL_CHL_CTL, 0x15}, /* Automatic offset and AGC enabled */ + {TVP5150_MISC_CTL, 0x6f}, /* Activate YCrCb output 0x9 or 0xd ? */ + {TVP5150_AUTOSW_MSK, 0x0}, /* Activates video std autodetection for all standards */ + {TVP5150_DATA_RATE_SEL, 0x47},/* Default format: 0x47. For 4:2:2: 0x40 */ + {TVP5150_CHROMA_PROC_CTL_1, 0x0c}, + {TVP5150_CHROMA_PROC_CTL_2, 0x54}, + {0x27, 0x20},/* Non documented, but initialized on WinTV USB2 */ + {0xff, 0xff} +}; + +static int tvp5150soc_write_inittab(struct v4l2_subdev *sd, const struct i2c_reg_value *regs) +{ + while (regs->reg != 0xff) { + tvp5150soc_write_reg(sd, regs->reg, regs->value); + regs++; + } + return 0; +} + +static int tvp5150soc_s_input(struct file *file, void *priv, unsigned int i) +{ + struct soc_camera_device *icd = file->private_data; + struct v4l2_subdev *sd = soc_camera_to_subdev(icd); + struct tvp5150soc_decoder *decoder = to_decoder(sd); + unsigned char val; + + if (i < 3) + { + decoder->active_input = i; + switch (decoder->active_input) { + case 0: + val = TVP5150_VIDEO_INPUT_SELECT_AIP1A; + break; + case 1: + val = TVP5150_VIDEO_INPUT_SELECT_AIP1B; + break; + case 2: + val = TVP5150_VIDEO_INPUT_SELECT_SVIDEO; + break; + default: + val = TVP5150_VIDEO_INPUT_SELECT_AIP1A; + } + return tvp5150soc_write_reg(sd, TVP5150_VD_IN_SRC_SEL_1, val); + } + + return -EINVAL; +} + +static int tvp5150soc_g_input(struct file *file, void *priv, unsigned int *i) +{ + struct soc_camera_device *icd = file->private_data; + struct v4l2_subdev *sd = soc_camera_to_subdev(icd); + struct tvp5150soc_decoder *decoder = to_decoder(sd); + + *i = decoder->active_input; + + return 0; +} + +/********************************************************************************************************************************/ + +static int tvp5150soc_set_bus_param(struct soc_camera_device *icd, unsigned long flags) +{ + return 0; +} + +static unsigned long tvp5150soc_query_bus_param(struct soc_camera_device *icd) +{ + struct soc_camera_link *icl = to_soc_camera_link(icd); + + unsigned long flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_MASTER | + SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_HIGH | + SOCAM_DATA_ACTIVE_HIGH | SOCAM_DATAWIDTH_8; + + return soc_camera_apply_sensor_flags(icl, flags); +} + +/********************************************************************************************************************************/ + +static int tvp5150soc_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + tvp5150soc_read_reg(sd, TVP5150_BRIGHT_CTL, (unsigned char*)&ctrl->value); + return 0; + case V4L2_CID_CONTRAST: + tvp5150soc_read_reg(sd, TVP5150_CONTRAST_CTL, (unsigned char*)&ctrl->value); + return 0; + case V4L2_CID_SATURATION: + tvp5150soc_read_reg(sd, TVP5150_SATURATION_CTL, (unsigned char*)&ctrl->value); + return 0; + case V4L2_CID_HUE: + tvp5150soc_read_reg(sd, TVP5150_HUE_CTL, (unsigned char*)&ctrl->value); + return 0; + } + return -EINVAL; +} + +static int tvp5150soc_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + tvp5150soc_write_reg(sd, TVP5150_BRIGHT_CTL, ctrl->value); + return 0; + case V4L2_CID_CONTRAST: + tvp5150soc_write_reg(sd, TVP5150_CONTRAST_CTL, ctrl->value); + return 0; + case V4L2_CID_SATURATION: + tvp5150soc_write_reg(sd, TVP5150_SATURATION_CTL, ctrl->value); + return 0; + case V4L2_CID_HUE: + tvp5150soc_write_reg(sd, TVP5150_HUE_CTL, ctrl->value); + return 0; + } + return -EINVAL; +} + +static int tvp5150soc_reset(struct v4l2_subdev *sd, u32 val) +{ + /* Initializes TVP5150 to its default values */ + /* TVP5150 has no ability to software reset */ + tvp5150soc_write_inittab(sd, tvp5150soc_init_default); + + /* Initializes TVP5150 to stream enabled values */ + tvp5150soc_write_inittab(sd, tvp5150soc_init_enable); + + return 0; +} + +/********************************************************************************************************************************/ + +static int tvp5150soc_s_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf) +{ + /* + * Set the image format. Currently we support only one format with + * fixed resolution, so we can set the format as it is on camera startup. + */ + tvp5150soc_reset(sd, 0); + + return 0; +} + +static int tvp5150soc_try_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf) +{ + struct tvp5150soc_decoder *decoder = to_decoder(sd); + int index; + + printk(KERN_ERR "tvp5150soc_probe try mbus format\n"); + + /* Check if we support queried image format. */ + for (index = 0; index < N_TVP5150_FMTS; index++) + if (tvp5150soc_formats[index].mbus_code == mf->code) + { + printk(KERN_ERR "tvp5150soc_probe try mbus format found format\n"); + break; + } + /* If not, set the only one which we support */ + if (index >= N_TVP5150_FMTS) { + /* default to first format */ + index = 0; + printk(KERN_ERR "tvp5150soc_probe try mbus format default format\n"); + mf->code = tvp5150soc_formats[0].mbus_code; + } + + /* Store the current format */ + decoder->fmt = &tvp5150soc_formats[index]; + + /* Fixed value, move to tvp5150soc_formats */ + mf->field = V4L2_FIELD_INTERLACED_TB; + mf->width = LINE_PIXELS; + mf->height = FRAME_LINES; + mf->colorspace = tvp5150soc_formats[index].colorspace; + + return 0; +} + +static int tvp5150soc_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned int index, enum v4l2_mbus_pixelcode *code) +{ + if (index >= ARRAY_SIZE(tvp5150soc_formats)) + return -EINVAL; + + *code = tvp5150soc_formats[index].mbus_code; + + return 0; +} +/********************************************************************************************************************************/ + +static struct soc_camera_ops tvp5150soc_soc_camera_ops = { + .set_bus_param = tvp5150soc_set_bus_param, + .query_bus_param = tvp5150soc_query_bus_param, + .controls = tvp5150soc_controls, + .num_controls = ARRAY_SIZE(tvp5150soc_controls), +}; + +static const struct v4l2_subdev_core_ops tvp5150soc_core_ops = { + .g_ctrl = tvp5150soc_g_ctrl, + .s_ctrl = tvp5150soc_s_ctrl, + .reset = tvp5150soc_reset, +}; + +static const struct v4l2_subdev_video_ops tvp5150soc_video_ops = { + .s_mbus_fmt = tvp5150soc_s_mbus_fmt, + .try_mbus_fmt = tvp5150soc_try_mbus_fmt, + .enum_mbus_fmt = tvp5150soc_enum_mbus_fmt, +}; + +static const struct v4l2_subdev_ops tvp5150soc_ops = { + .core = &tvp5150soc_core_ops, + .video = &tvp5150soc_video_ops, +}; + + +/**************************************************************************** + I2C Client & Driver + ****************************************************************************/ +static int tvp5150soc_probe(struct i2c_client *client, const struct i2c_device_id *id) +{ + struct soc_camera_device *icd = client->dev.platform_data; + struct soc_camera_link *icl; + struct tvp5150soc_decoder *decoder; + struct v4l2_subdev *sd; + struct v4l2_ioctl_ops *ops; + unsigned char msb_id, lsb_id, msb_rom, lsb_rom; + + printk(KERN_ERR "tvp5150soc_probe start\n"); + + /* Check if the adapter supports the needed features */ + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + { + printk(KERN_ERR "tvp5150soc_probe error 1\n"); + return -EIO; + } + + icl = to_soc_camera_link(icd); + if (!icl) + { + dev_err(&client->dev, "No platform data!!\n"); + printk(KERN_ERR "tvp5150soc_probe error 2\n"); + return -ENODEV; + } + + decoder = kzalloc(sizeof(struct tvp5150soc_decoder), GFP_KERNEL); + if (!decoder) + { + dev_err(&client->dev, "Failed to allocate memory for private data!\n"); + printk(KERN_ERR "tvp5150soc_probe error 3\n"); + return -ENOMEM; + } + + /* TODO: init def settings of tvp5150soc_decoder */ + + sd = &decoder->sd; + + /* Register with V4L2 layer as slave device */ + v4l2_i2c_subdev_init(sd, client, &tvp5150soc_ops); + + tvp5150soc_read_reg(sd, TVP5150_MSB_DEV_ID, &msb_id); + tvp5150soc_read_reg(sd, TVP5150_LSB_DEV_ID, &lsb_id); + tvp5150soc_read_reg(sd, TVP5150_ROM_MAJOR_VER, &msb_rom); + tvp5150soc_read_reg(sd, TVP5150_ROM_MINOR_VER, &lsb_rom); + + if (msb_rom == 4 && lsb_rom == 0) { /* Is TVP5150AM1 */ + v4l2_info(sd, "tvp%02x%02xam1 detected.\n", msb_id, lsb_id); + /* ITU-T BT.656.4 timing */ + tvp5150soc_write_reg(sd, TVP5150_REV_SELECT, 0); + } else { + if (msb_rom == 3 || lsb_rom == 0x21) { /* Is TVP5150A */ + v4l2_info(sd, "tvp%02x%02xa detected.\n", msb_id, lsb_id); + } else { + v4l2_info(sd, "*** unknown tvp%02x%02x chip detected.\n", msb_id, lsb_id); + v4l2_info(sd, "*** Rom ver is %d.%d\n", msb_rom, lsb_rom); + } + } + + icd->ops = &tvp5150soc_soc_camera_ops; + + /* + * This is the only way to support more than one input as soc_camera + * assumes in its own vidioc_s(g)_input implementation that only one + * input is present we have to override that with our own handlers. + */ + ops = (struct v4l2_ioctl_ops*)icd->vdev->ioctl_ops; + ops->vidioc_s_input = &tvp5150soc_s_input; + ops->vidioc_g_input = &tvp5150soc_g_input; + + printk(KERN_ERR "tvp5150soc_probe return 0\n"); + return 0; +} + +static int tvp5150soc_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct tvp5150soc_decoder *decoder = to_decoder(sd); + + v4l2_device_unregister_subdev(sd); + kfree(decoder); + + return 0; +} + +/* ----------------------------------------------------------------------- */ + +static const struct i2c_device_id tvp5150soc_id[] = { + { MODULE_NAME, 0 }, + { } +}; + +static struct i2c_driver tvp5150soc_driver = { + .driver = { + .owner = THIS_MODULE, + .name = MODULE_NAME, + }, + .probe = tvp5150soc_probe, + .remove = tvp5150soc_remove, + .id_table = tvp5150soc_id, +}; + +static __init int init_tvp5150soc(void) +{ + return i2c_add_driver(&tvp5150soc_driver); +} + +static __exit void exit_tvp5150soc(void) +{ + i2c_del_driver(&tvp5150soc_driver); +} + +module_init(init_tvp5150soc); +module_exit(exit_tvp5150soc); + +MODULE_DESCRIPTION("Texas Instruments TVP5150A video decoder driver for soc_camera interface"); +MODULE_AUTHOR("Antmicro Ltd."); +MODULE_LICENSE("GPL"); |