diff options
Diffstat (limited to 'drivers/staging/media/go7007/wis-tw2804.c')
-rw-r--r-- | drivers/staging/media/go7007/wis-tw2804.c | 512 |
1 files changed, 364 insertions, 148 deletions
diff --git a/drivers/staging/media/go7007/wis-tw2804.c b/drivers/staging/media/go7007/wis-tw2804.c index 9134f03e3cf0..9afc5df5902e 100644 --- a/drivers/staging/media/go7007/wis-tw2804.c +++ b/drivers/staging/media/go7007/wis-tw2804.c @@ -21,16 +21,27 @@ #include <linux/videodev2.h> #include <linux/ioctl.h> #include <linux/slab.h> +#include <media/v4l2-subdev.h> +#include <media/v4l2-device.h> #include "wis-i2c.h" struct wis_tw2804 { - int channel; + struct v4l2_subdev sd; + u8 channel:2; + u8 input:1; + u8 update:1; + u8 auto_gain:1; + u8 ckil:1; int norm; - int brightness; - int contrast; - int saturation; - int hue; + u8 brightness; + u8 contrast; + u8 saturation; + u8 hue; + u8 gain; + u8 cr_gain; + u8 r_balance; + u8 b_balance; }; static u8 global_registers[] = { @@ -41,6 +52,7 @@ static u8 global_registers[] = { 0x3d, 0x80, 0x3e, 0x82, 0x3f, 0x82, + 0x78, 0x0f, 0xff, 0xff, /* Terminator (reg 0xff does not exist) */ }; @@ -103,29 +115,358 @@ static u8 channel_registers[] = { 0xff, 0xff, /* Terminator (reg 0xff does not exist) */ }; -static int write_reg(struct i2c_client *client, u8 reg, u8 value, int channel) +static s32 write_reg(struct i2c_client *client, u8 reg, u8 value, u8 channel) { return i2c_smbus_write_byte_data(client, reg | (channel << 6), value); } -static int write_regs(struct i2c_client *client, u8 *regs, int channel) +static int write_regs(struct i2c_client *client, u8 *regs, u8 channel) { int i; for (i = 0; regs[i] != 0xff; i += 2) if (i2c_smbus_write_byte_data(client, regs[i] | (channel << 6), regs[i + 1]) < 0) - return -1; + return -EINVAL; return 0; } +static s32 read_reg(struct i2c_client *client, u8 reg, u8 channel) +{ + return i2c_smbus_read_byte_data(client, (reg) | (channel << 6)); +} + +static inline struct wis_tw2804 *to_state(struct v4l2_subdev *sd) +{ + return container_of(sd, struct wis_tw2804, sd); +} + +static int tw2804_log_status(struct v4l2_subdev *sd) +{ + struct wis_tw2804 *state = to_state(sd); + v4l2_info(sd, "Standard: %s\n", state->norm == V4L2_STD_NTSC ? "NTSC" : + state->norm == V4L2_STD_PAL ? "PAL" : "unknown"); + v4l2_info(sd, "Channel: %d\n", state->channel); + v4l2_info(sd, "Input: %d\n", state->input); + v4l2_info(sd, "Brightness: %d\n", state->brightness); + v4l2_info(sd, "Contrast: %d\n", state->contrast); + v4l2_info(sd, "Saturation: %d\n", state->saturation); + v4l2_info(sd, "Hue: %d\n", state->hue); + return 0; +} + +static int tw2804_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *query) +{ + static const u32 user_ctrls[] = { + V4L2_CID_USER_CLASS, + V4L2_CID_BRIGHTNESS, + V4L2_CID_CONTRAST, + V4L2_CID_SATURATION, + V4L2_CID_HUE, + V4L2_CID_AUTOGAIN, + V4L2_CID_COLOR_KILLER, + V4L2_CID_GAIN, + V4L2_CID_CHROMA_GAIN, + V4L2_CID_BLUE_BALANCE, + V4L2_CID_RED_BALANCE, + 0 + }; + + static const u32 *ctrl_classes[] = { + user_ctrls, + NULL + }; + + query->id = v4l2_ctrl_next(ctrl_classes, query->id); + + switch (query->id) { + case V4L2_CID_USER_CLASS: + return v4l2_ctrl_query_fill(query, 0, 0, 0, 0); + case V4L2_CID_BRIGHTNESS: + return v4l2_ctrl_query_fill(query, 0, 255, 1, 128); + case V4L2_CID_CONTRAST: + return v4l2_ctrl_query_fill(query, 0, 255, 1, 128); + case V4L2_CID_SATURATION: + return v4l2_ctrl_query_fill(query, 0, 255, 1, 128); + case V4L2_CID_HUE: + return v4l2_ctrl_query_fill(query, 0, 255, 1, 128); + case V4L2_CID_AUTOGAIN: + return v4l2_ctrl_query_fill(query, 0, 1, 1, 0); + case V4L2_CID_COLOR_KILLER: + return v4l2_ctrl_query_fill(query, 0, 1, 1, 0); + case V4L2_CID_GAIN: + return v4l2_ctrl_query_fill(query, 0, 255, 1, 128); + case V4L2_CID_CHROMA_GAIN: + return v4l2_ctrl_query_fill(query, 0, 255, 1, 128); + case V4L2_CID_BLUE_BALANCE: + return v4l2_ctrl_query_fill(query, 0, 255, 1, 122); + case V4L2_CID_RED_BALANCE: + return v4l2_ctrl_query_fill(query, 0, 255, 1, 122); + default: + return -EINVAL; + } +} + +s32 get_ctrl_addr(int ctrl) +{ + switch (ctrl) { + case V4L2_CID_BRIGHTNESS: + return 0x12; + case V4L2_CID_CONTRAST: + return 0x11; + case V4L2_CID_SATURATION: + return 0x10; + case V4L2_CID_HUE: + return 0x0f; + case V4L2_CID_AUTOGAIN: + return 0x02; + case V4L2_CID_COLOR_KILLER: + return 0x14; + case V4L2_CID_GAIN: + return 0x3c; + case V4L2_CID_CHROMA_GAIN: + return 0x3d; + case V4L2_CID_RED_BALANCE: + return 0x3f; + case V4L2_CID_BLUE_BALANCE: + return 0x3e; + default: + return -EINVAL; + } +} + +static int tw2804_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + struct wis_tw2804 *state = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + s32 addr = get_ctrl_addr(ctrl->id); + s32 val = 0; + + if (addr == -EINVAL) + return -EINVAL; + + if (state->update) { + val = read_reg(client, addr, ctrl->id == V4L2_CID_GAIN || + ctrl->id == V4L2_CID_CHROMA_GAIN || + ctrl->id == V4L2_CID_RED_BALANCE || + ctrl->id == V4L2_CID_BLUE_BALANCE ? 0 : state->channel); + if (val < 0) + return val; + } + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + if (state->update) + state->brightness = val; + ctrl->value = state->brightness; + break; + case V4L2_CID_CONTRAST: + if (state->update) + state->contrast = val; + ctrl->value = state->contrast; + break; + case V4L2_CID_SATURATION: + if (state->update) + state->saturation = val; + ctrl->value = state->saturation; + break; + case V4L2_CID_HUE: + if (state->update) + state->hue = val; + ctrl->value = state->hue; + break; + case V4L2_CID_AUTOGAIN: + if (state->update) + state->auto_gain = val & (1<<7) ? 1 : 0; + ctrl->value = state->auto_gain; + break; + case V4L2_CID_COLOR_KILLER: + if (state->update) + state->ckil = (val & 0x03) == 0x03 ? 1 : 0; + ctrl->value = state->ckil; + break; + case V4L2_CID_GAIN: + if (state->update) + state->gain = val; + ctrl->value = state->gain; + break; + case V4L2_CID_CHROMA_GAIN: + if (state->update) + state->cr_gain = val; + ctrl->value = state->cr_gain; + break; + case V4L2_CID_RED_BALANCE: + if (state->update) + state->r_balance = val; + ctrl->value = state->r_balance; + break; + case V4L2_CID_BLUE_BALANCE: + if (state->update) + state->b_balance = val; + ctrl->value = state->b_balance; + break; + default: + return -EINVAL; + } + + state->update = 0; + return 0; +} + +static int tw2804_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + struct wis_tw2804 *dec = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + s32 reg = 0; + s32 addr = get_ctrl_addr(ctrl->id); + + if (addr == -EINVAL) + return -EINVAL; + + switch (ctrl->id) { + case V4L2_CID_AUTOGAIN: + reg = read_reg(client, addr, dec->channel); + if (reg > 0) { + if (ctrl->value == 0) + ctrl->value = reg & ~(1<<7); + else + ctrl->value = reg | 1<<7; + } else + return reg; + break; + case V4L2_CID_COLOR_KILLER: + reg = read_reg(client, addr, dec->channel); + if (reg > 0) + ctrl->value = (reg & ~(0x03)) | (ctrl->value == 0 ? 0x02 : 0x03); + else + return reg; + break; + default: + break; + } + + ctrl->value = ctrl->value > 255 ? 255 : (ctrl->value < 0 ? 0 : ctrl->value); + reg = write_reg(client, addr, (u8)ctrl->value, ctrl->id == V4L2_CID_GAIN || + ctrl->id == V4L2_CID_CHROMA_GAIN || + ctrl->id == V4L2_CID_RED_BALANCE || + ctrl->id == V4L2_CID_BLUE_BALANCE ? 0 : dec->channel); + + if (reg < 0) { + v4l2_err(&dec->sd, "Can`t set_ctrl value:id=%d;value=%d\n", ctrl->id, ctrl->value); + return reg; + } + + dec->update = 1; + return tw2804_g_ctrl(sd, ctrl); +} + +static int tw2804_s_std(struct v4l2_subdev *sd, v4l2_std_id norm) +{ + struct wis_tw2804 *dec = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + + u8 regs[] = { + 0x01, norm&V4L2_STD_NTSC ? 0xc4 : 0x84, + 0x09, norm&V4L2_STD_NTSC ? 0x07 : 0x04, + 0x0a, norm&V4L2_STD_NTSC ? 0xf0 : 0x20, + 0x0b, norm&V4L2_STD_NTSC ? 0x07 : 0x04, + 0x0c, norm&V4L2_STD_NTSC ? 0xf0 : 0x20, + 0x0d, norm&V4L2_STD_NTSC ? 0x40 : 0x4a, + 0x16, norm&V4L2_STD_NTSC ? 0x00 : 0x40, + 0x17, norm&V4L2_STD_NTSC ? 0x00 : 0x40, + 0x20, norm&V4L2_STD_NTSC ? 0x07 : 0x0f, + 0x21, norm&V4L2_STD_NTSC ? 0x07 : 0x0f, + 0xff, 0xff, + }; + write_regs(client, regs, dec->channel); + dec->norm = norm; + return 0; +} + +static const struct v4l2_subdev_core_ops tw2804_core_ops = { + .log_status = tw2804_log_status, + .g_ctrl = tw2804_g_ctrl, + .s_ctrl = tw2804_s_ctrl, + .queryctrl = tw2804_queryctrl, + .s_std = tw2804_s_std, +}; + +static int tw2804_s_video_routing(struct v4l2_subdev *sd, u32 input, u32 output, + u32 config) +{ + struct wis_tw2804 *dec = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + s32 reg = 0; + + if (0 > input || input > 1) + return -EINVAL; + + if (input == dec->input && !dec->update) + return 0; + + reg = read_reg(client, 0x22, dec->channel); + + if (reg >= 0) { + if (input == 0) + reg &= ~(1<<2); + else + reg |= 1<<2; + reg = write_reg(client, 0x22, (u8)reg, dec->channel); + } + + if (reg >= 0) { + dec->input = input; + dec->update = 0; + } else + return reg; + return 0; +} + +static int tw2804_s_mbus_fmt(struct v4l2_subdev *sd, + struct v4l2_mbus_framefmt *fmt) +{ + /*TODO need select between 3fmt: + * bt_656, + * bt_601_8bit, + * bt_656_dual, + */ + return 0; +} + +int tw2804_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct wis_tw2804 *dec = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + u32 reg = read_reg(client, 0x78, 0); + + if (enable == 1) + write_reg(client, 0x78, reg & ~(1<<dec->channel), 0); + else + write_reg(client, 0x78, reg | (1<<dec->channel), 0); + + return 0; +} + +static const struct v4l2_subdev_video_ops tw2804_video_ops = { + .s_routing = tw2804_s_video_routing, + .s_mbus_fmt = tw2804_s_mbus_fmt, + .s_stream = tw2804_s_stream, +}; + +static const struct v4l2_subdev_ops tw2804_ops = { + .core = &tw2804_core_ops, + .video = &tw2804_video_ops, +}; + static int wis_tw2804_command(struct i2c_client *client, unsigned int cmd, void *arg) { - struct wis_tw2804 *dec = i2c_get_clientdata(client); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct wis_tw2804 *dec = to_state(sd); + int *input; if (cmd == DECODER_SET_CHANNEL) { - int *input = arg; + input = arg; if (*input < 0 || *input > 3) { printk(KERN_ERR "wis-tw2804: channel %d is not " @@ -154,139 +495,6 @@ static int wis_tw2804_command(struct i2c_client *client, "channel number is set\n", cmd); return 0; } - - switch (cmd) { - case VIDIOC_S_STD: - { - v4l2_std_id *input = arg; - u8 regs[] = { - 0x01, *input & V4L2_STD_NTSC ? 0xc4 : 0x84, - 0x09, *input & V4L2_STD_NTSC ? 0x07 : 0x04, - 0x0a, *input & V4L2_STD_NTSC ? 0xf0 : 0x20, - 0x0b, *input & V4L2_STD_NTSC ? 0x07 : 0x04, - 0x0c, *input & V4L2_STD_NTSC ? 0xf0 : 0x20, - 0x0d, *input & V4L2_STD_NTSC ? 0x40 : 0x4a, - 0x16, *input & V4L2_STD_NTSC ? 0x00 : 0x40, - 0x17, *input & V4L2_STD_NTSC ? 0x00 : 0x40, - 0x20, *input & V4L2_STD_NTSC ? 0x07 : 0x0f, - 0x21, *input & V4L2_STD_NTSC ? 0x07 : 0x0f, - 0xff, 0xff, - }; - write_regs(client, regs, dec->channel); - dec->norm = *input; - break; - } - case VIDIOC_QUERYCTRL: - { - struct v4l2_queryctrl *ctrl = arg; - - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - ctrl->type = V4L2_CTRL_TYPE_INTEGER; - strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)); - ctrl->minimum = 0; - ctrl->maximum = 255; - ctrl->step = 1; - ctrl->default_value = 128; - ctrl->flags = 0; - break; - case V4L2_CID_CONTRAST: - ctrl->type = V4L2_CTRL_TYPE_INTEGER; - strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)); - ctrl->minimum = 0; - ctrl->maximum = 255; - ctrl->step = 1; - ctrl->default_value = 128; - ctrl->flags = 0; - break; - case V4L2_CID_SATURATION: - ctrl->type = V4L2_CTRL_TYPE_INTEGER; - strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)); - ctrl->minimum = 0; - ctrl->maximum = 255; - ctrl->step = 1; - ctrl->default_value = 128; - ctrl->flags = 0; - break; - case V4L2_CID_HUE: - ctrl->type = V4L2_CTRL_TYPE_INTEGER; - strncpy(ctrl->name, "Hue", sizeof(ctrl->name)); - ctrl->minimum = 0; - ctrl->maximum = 255; - ctrl->step = 1; - ctrl->default_value = 128; - ctrl->flags = 0; - break; - } - break; - } - case VIDIOC_S_CTRL: - { - struct v4l2_control *ctrl = arg; - - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - if (ctrl->value > 255) - dec->brightness = 255; - else if (ctrl->value < 0) - dec->brightness = 0; - else - dec->brightness = ctrl->value; - write_reg(client, 0x12, dec->brightness, dec->channel); - break; - case V4L2_CID_CONTRAST: - if (ctrl->value > 255) - dec->contrast = 255; - else if (ctrl->value < 0) - dec->contrast = 0; - else - dec->contrast = ctrl->value; - write_reg(client, 0x11, dec->contrast, dec->channel); - break; - case V4L2_CID_SATURATION: - if (ctrl->value > 255) - dec->saturation = 255; - else if (ctrl->value < 0) - dec->saturation = 0; - else - dec->saturation = ctrl->value; - write_reg(client, 0x10, dec->saturation, dec->channel); - break; - case V4L2_CID_HUE: - if (ctrl->value > 255) - dec->hue = 255; - else if (ctrl->value < 0) - dec->hue = 0; - else - dec->hue = ctrl->value; - write_reg(client, 0x0f, dec->hue, dec->channel); - break; - } - break; - } - case VIDIOC_G_CTRL: - { - struct v4l2_control *ctrl = arg; - - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - ctrl->value = dec->brightness; - break; - case V4L2_CID_CONTRAST: - ctrl->value = dec->contrast; - break; - case V4L2_CID_SATURATION: - ctrl->value = dec->saturation; - break; - case V4L2_CID_HUE: - ctrl->value = dec->hue; - break; - } - break; - } - default: - break; - } return 0; } @@ -295,21 +503,28 @@ static int wis_tw2804_probe(struct i2c_client *client, { struct i2c_adapter *adapter = client->adapter; struct wis_tw2804 *dec; + struct v4l2_subdev *sd; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -ENODEV; - dec = kmalloc(sizeof(struct wis_tw2804), GFP_KERNEL); + dec = kzalloc(sizeof(struct wis_tw2804), GFP_KERNEL); + if (dec == NULL) return -ENOMEM; - + sd = &dec->sd; + dec->update = 1; dec->channel = -1; dec->norm = V4L2_STD_NTSC; dec->brightness = 128; dec->contrast = 128; dec->saturation = 128; dec->hue = 128; - i2c_set_clientdata(client, dec); + dec->gain = 128; + dec->cr_gain = 128; + dec->b_balance = 122; + dec->r_balance = 122; + v4l2_i2c_subdev_init(sd, client, &tw2804_ops); printk(KERN_DEBUG "wis-tw2804: creating TW2804 at address %d on %s\n", client->addr, adapter->name); @@ -319,9 +534,10 @@ static int wis_tw2804_probe(struct i2c_client *client, static int wis_tw2804_remove(struct i2c_client *client) { - struct wis_tw2804 *dec = i2c_get_clientdata(client); + struct v4l2_subdev *sd = i2c_get_clientdata(client); - kfree(dec); + v4l2_device_unregister_subdev(sd); + kfree(to_state(sd)); return 0; } |