7400516ab4
Move the go7007 driver away from the legacy i2c binding model, which is going away really soon now. The I2C addresses of the audio and video chips in s2250-board didn't look quite right, apparently they were left-aligned values when Linux wants right-aligned values, so I fixed them too. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Greg Kroah-Hartman <gregkh@suse.de>
340 lines
7.6 KiB
C
340 lines
7.6 KiB
C
/*
|
|
* Copyright (C) 2005-2006 Micronas USA Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License (Version 2) as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/videodev2.h>
|
|
#include <linux/ioctl.h>
|
|
|
|
#include "wis-i2c.h"
|
|
|
|
struct wis_tw9903 {
|
|
int norm;
|
|
int brightness;
|
|
int contrast;
|
|
int hue;
|
|
};
|
|
|
|
static u8 initial_registers[] =
|
|
{
|
|
0x02, 0x44, /* input 1, composite */
|
|
0x03, 0x92, /* correct digital format */
|
|
0x04, 0x00,
|
|
0x05, 0x80, /* or 0x00 for PAL */
|
|
0x06, 0x40, /* second internal current reference */
|
|
0x07, 0x02, /* window */
|
|
0x08, 0x14, /* window */
|
|
0x09, 0xf0, /* window */
|
|
0x0a, 0x81, /* window */
|
|
0x0b, 0xd0, /* window */
|
|
0x0c, 0x8c,
|
|
0x0d, 0x00, /* scaling */
|
|
0x0e, 0x11, /* scaling */
|
|
0x0f, 0x00, /* scaling */
|
|
0x10, 0x00, /* brightness */
|
|
0x11, 0x60, /* contrast */
|
|
0x12, 0x01, /* sharpness */
|
|
0x13, 0x7f, /* U gain */
|
|
0x14, 0x5a, /* V gain */
|
|
0x15, 0x00, /* hue */
|
|
0x16, 0xc3, /* sharpness */
|
|
0x18, 0x00,
|
|
0x19, 0x58, /* vbi */
|
|
0x1a, 0x80,
|
|
0x1c, 0x0f, /* video norm */
|
|
0x1d, 0x7f, /* video norm */
|
|
0x20, 0xa0, /* clamping gain (working 0x50) */
|
|
0x21, 0x22,
|
|
0x22, 0xf0,
|
|
0x23, 0xfe,
|
|
0x24, 0x3c,
|
|
0x25, 0x38,
|
|
0x26, 0x44,
|
|
0x27, 0x20,
|
|
0x28, 0x00,
|
|
0x29, 0x15,
|
|
0x2a, 0xa0,
|
|
0x2b, 0x44,
|
|
0x2c, 0x37,
|
|
0x2d, 0x00,
|
|
0x2e, 0xa5, /* burst PLL control (working: a9) */
|
|
0x2f, 0xe0, /* 0xea is blue test frame -- 0xe0 for normal */
|
|
0x31, 0x00,
|
|
0x33, 0x22,
|
|
0x34, 0x11,
|
|
0x35, 0x35,
|
|
0x3b, 0x05,
|
|
0x06, 0xc0, /* reset device */
|
|
0x00, 0x00, /* Terminator (reg 0x00 is read-only) */
|
|
};
|
|
|
|
static int write_reg(struct i2c_client *client, u8 reg, u8 value)
|
|
{
|
|
return i2c_smbus_write_byte_data(client, reg, value);
|
|
}
|
|
|
|
static int write_regs(struct i2c_client *client, u8 *regs)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; regs[i] != 0x00; i += 2)
|
|
if (i2c_smbus_write_byte_data(client, regs[i], regs[i + 1]) < 0)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
static int wis_tw9903_command(struct i2c_client *client,
|
|
unsigned int cmd, void *arg)
|
|
{
|
|
struct wis_tw9903 *dec = i2c_get_clientdata(client);
|
|
|
|
switch (cmd) {
|
|
case VIDIOC_S_INPUT:
|
|
{
|
|
int *input = arg;
|
|
|
|
i2c_smbus_write_byte_data(client, 0x02, 0x40 | (*input << 1));
|
|
break;
|
|
}
|
|
#if 0 /* The scaler on this thing seems to be horribly broken */
|
|
case DECODER_SET_RESOLUTION:
|
|
{
|
|
struct video_decoder_resolution *res = arg;
|
|
/*int hscale = 256 * 720 / res->width;*/
|
|
int hscale = 256 * 720 / (res->width - (res->width > 704 ? 0 : 8));
|
|
int vscale = 256 * (dec->norm & V4L2_STD_NTSC ? 240 : 288)
|
|
/ res->height;
|
|
u8 regs[] = {
|
|
0x0d, vscale & 0xff,
|
|
0x0f, hscale & 0xff,
|
|
0x0e, ((vscale & 0xf00) >> 4) | ((hscale & 0xf00) >> 8),
|
|
0x06, 0xc0, /* reset device */
|
|
0, 0,
|
|
};
|
|
printk(KERN_DEBUG "vscale is %04x, hscale is %04x\n",
|
|
vscale, hscale);
|
|
/*write_regs(client, regs);*/
|
|
break;
|
|
}
|
|
#endif
|
|
case VIDIOC_S_STD:
|
|
{
|
|
v4l2_std_id *input = arg;
|
|
u8 regs[] = {
|
|
0x05, *input & V4L2_STD_NTSC ? 0x80 : 0x00,
|
|
0x07, *input & V4L2_STD_NTSC ? 0x02 : 0x12,
|
|
0x08, *input & V4L2_STD_NTSC ? 0x14 : 0x18,
|
|
0x09, *input & V4L2_STD_NTSC ? 0xf0 : 0x20,
|
|
0, 0,
|
|
};
|
|
write_regs(client, regs);
|
|
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 = -128;
|
|
ctrl->maximum = 127;
|
|
ctrl->step = 1;
|
|
ctrl->default_value = 0x00;
|
|
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 = 0x60;
|
|
ctrl->flags = 0;
|
|
break;
|
|
#if 0
|
|
/* I don't understand how the Chroma Gain registers work... */
|
|
case V4L2_CID_SATURATION:
|
|
ctrl->type = V4L2_CTRL_TYPE_INTEGER;
|
|
strncpy(ctrl->name, "Saturation", sizeof(ctrl->name));
|
|
ctrl->minimum = 0;
|
|
ctrl->maximum = 127;
|
|
ctrl->step = 1;
|
|
ctrl->default_value = 64;
|
|
ctrl->flags = 0;
|
|
break;
|
|
#endif
|
|
case V4L2_CID_HUE:
|
|
ctrl->type = V4L2_CTRL_TYPE_INTEGER;
|
|
strncpy(ctrl->name, "Hue", sizeof(ctrl->name));
|
|
ctrl->minimum = -128;
|
|
ctrl->maximum = 127;
|
|
ctrl->step = 1;
|
|
ctrl->default_value = 0;
|
|
ctrl->flags = 0;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
case VIDIOC_S_CTRL:
|
|
{
|
|
struct v4l2_control *ctrl = arg;
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_BRIGHTNESS:
|
|
if (ctrl->value > 127)
|
|
dec->brightness = 127;
|
|
else if (ctrl->value < -128)
|
|
dec->brightness = -128;
|
|
else
|
|
dec->brightness = ctrl->value;
|
|
write_reg(client, 0x10, dec->brightness);
|
|
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);
|
|
break;
|
|
#if 0
|
|
case V4L2_CID_SATURATION:
|
|
if (ctrl->value > 127)
|
|
dec->saturation = 127;
|
|
else if (ctrl->value < 0)
|
|
dec->saturation = 0;
|
|
else
|
|
dec->saturation = ctrl->value;
|
|
/*write_reg(client, 0x0c, dec->saturation);*/
|
|
break;
|
|
#endif
|
|
case V4L2_CID_HUE:
|
|
if (ctrl->value > 127)
|
|
dec->hue = 127;
|
|
else if (ctrl->value < -128)
|
|
dec->hue = -128;
|
|
else
|
|
dec->hue = ctrl->value;
|
|
write_reg(client, 0x15, dec->hue);
|
|
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;
|
|
#if 0
|
|
case V4L2_CID_SATURATION:
|
|
ctrl->value = dec->saturation;
|
|
break;
|
|
#endif
|
|
case V4L2_CID_HUE:
|
|
ctrl->value = dec->hue;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int wis_tw9903_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct i2c_adapter *adapter = client->adapter;
|
|
struct wis_tw9903 *dec;
|
|
|
|
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
|
|
return -ENODEV;
|
|
|
|
dec = kmalloc(sizeof(struct wis_tw9903), GFP_KERNEL);
|
|
if (dec == NULL)
|
|
return -ENOMEM;
|
|
|
|
dec->norm = V4L2_STD_NTSC;
|
|
dec->brightness = 0;
|
|
dec->contrast = 0x60;
|
|
dec->hue = 0;
|
|
i2c_set_clientdata(client, dec);
|
|
|
|
printk(KERN_DEBUG
|
|
"wis-tw9903: initializing TW9903 at address %d on %s\n",
|
|
client->addr, adapter->name);
|
|
|
|
if (write_regs(client, initial_registers) < 0) {
|
|
printk(KERN_ERR "wis-tw9903: error initializing TW9903\n");
|
|
kfree(dec);
|
|
return -ENODEV;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wis_tw9903_remove(struct i2c_client *client)
|
|
{
|
|
struct wis_tw9903 *dec = i2c_get_clientdata(client);
|
|
|
|
i2c_set_clientdata(client, NULL);
|
|
kfree(dec);
|
|
return 0;
|
|
}
|
|
|
|
static struct i2c_device_id wis_tw9903_id[] = {
|
|
{ "wis_tw9903", 0 },
|
|
{ }
|
|
};
|
|
|
|
static struct i2c_driver wis_tw9903_driver = {
|
|
.driver = {
|
|
.name = "WIS TW9903 I2C driver",
|
|
},
|
|
.probe = wis_tw9903_probe,
|
|
.remove = wis_tw9903_remove,
|
|
.command = wis_tw9903_command,
|
|
.id_table = wis_tw9903_id,
|
|
};
|
|
|
|
static int __init wis_tw9903_init(void)
|
|
{
|
|
return i2c_add_driver(&wis_tw9903_driver);
|
|
}
|
|
|
|
static void __exit wis_tw9903_cleanup(void)
|
|
{
|
|
i2c_del_driver(&wis_tw9903_driver);
|
|
}
|
|
|
|
module_init(wis_tw9903_init);
|
|
module_exit(wis_tw9903_cleanup);
|
|
|
|
MODULE_LICENSE("GPL v2");
|