#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 {
- struct v4l2_subdev sd;
- u8 channel:2;
- u8 input:1;
- u8 update:1;
- u8 auto_gain:1;
- u8 ckil:1;
+ int channel;
int norm;
- u8 brightness;
- u8 contrast;
- u8 saturation;
- u8 hue;
- u8 gain;
- u8 cr_gain;
- u8 r_balance;
- u8 b_balance;
+ int brightness;
+ int contrast;
+ int saturation;
+ int hue;
};
static u8 global_registers[] = {
0x3d, 0x80,
0x3e, 0x82,
0x3f, 0x82,
- 0x78, 0x0f,
0xff, 0xff, /* Terminator (reg 0xff does not exist) */
};
0xff, 0xff, /* Terminator (reg 0xff does not exist) */
};
-static s32 write_reg(struct i2c_client *client, u8 reg, u8 value, u8 channel)
+static int write_reg(struct i2c_client *client, u8 reg, u8 value, int channel)
{
return i2c_smbus_write_byte_data(client, reg | (channel << 6), value);
}
-static int write_regs(struct i2c_client *client, u8 *regs, u8 channel)
+static int write_regs(struct i2c_client *client, u8 *regs, int 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 -EINVAL;
+ return -1;
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 v4l2_subdev *sd = i2c_get_clientdata(client);
- struct wis_tw2804 *dec = to_state(sd);
- int *input;
+ struct wis_tw2804 *dec = i2c_get_clientdata(client);
if (cmd == DECODER_SET_CHANNEL) {
- input = arg;
+ int *input = arg;
if (*input < 0 || *input > 3) {
printk(KERN_ERR "wis-tw2804: channel %d is not "
"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;
}
{
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 = kzalloc(sizeof(struct wis_tw2804), GFP_KERNEL);
-
+ dec = kmalloc(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;
- dec->gain = 128;
- dec->cr_gain = 128;
- dec->b_balance = 122;
- dec->r_balance = 122;
- v4l2_i2c_subdev_init(sd, client, &tw2804_ops);
+ i2c_set_clientdata(client, dec);
printk(KERN_DEBUG "wis-tw2804: creating TW2804 at address %d on %s\n",
client->addr, adapter->name);
static int wis_tw2804_remove(struct i2c_client *client)
{
- struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct wis_tw2804 *dec = i2c_get_clientdata(client);
- v4l2_device_unregister_subdev(sd);
- kfree(to_state(sd));
+ kfree(dec);
return 0;
}
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