mirror of
https://github.com/torvalds/linux.git
synced 2024-11-08 21:21:47 +00:00
107063c615
The zoran i2c modules were still using V4L1 internally. Replace this with V4L2. Also deleted saa7111.c and saa7114.c, we use saa7115.c instead. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> [mchehab@redhat.com: fix v4l2_ctrl_query_fill_std merge conflict] Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
373 lines
9.8 KiB
C
373 lines
9.8 KiB
C
/*
|
|
* adv7175 - adv7175a video encoder driver version 0.0.3
|
|
*
|
|
* Copyright (C) 1998 Dave Perks <dperks@ibm.net>
|
|
* Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
|
|
* Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
|
|
* - some corrections for Pinnacle Systems Inc. DC10plus card.
|
|
*
|
|
* Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
|
|
* - moved over to linux>=2.4.x i2c protocol (9/9/2002)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/types.h>
|
|
#include <linux/ioctl.h>
|
|
#include <asm/uaccess.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/i2c-id.h>
|
|
#include <linux/videodev.h>
|
|
#include <linux/video_encoder.h>
|
|
#include <media/v4l2-common.h>
|
|
#include <media/v4l2-i2c-drv-legacy.h>
|
|
|
|
MODULE_DESCRIPTION("Analog Devices ADV7175 video encoder driver");
|
|
MODULE_AUTHOR("Dave Perks");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
static int debug;
|
|
module_param(debug, int, 0);
|
|
MODULE_PARM_DESC(debug, "Debug level (0-1)");
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
struct adv7175 {
|
|
v4l2_std_id norm;
|
|
int input;
|
|
int bright;
|
|
int contrast;
|
|
int hue;
|
|
int sat;
|
|
};
|
|
|
|
#define I2C_ADV7175 0xd4
|
|
#define I2C_ADV7176 0x54
|
|
|
|
static char *inputs[] = { "pass_through", "play_back", "color_bar" };
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
static inline int adv7175_write(struct i2c_client *client, u8 reg, u8 value)
|
|
{
|
|
return i2c_smbus_write_byte_data(client, reg, value);
|
|
}
|
|
|
|
static inline int adv7175_read(struct i2c_client *client, u8 reg)
|
|
{
|
|
return i2c_smbus_read_byte_data(client, reg);
|
|
}
|
|
|
|
static int adv7175_write_block(struct i2c_client *client,
|
|
const u8 *data, unsigned int len)
|
|
{
|
|
int ret = -1;
|
|
u8 reg;
|
|
|
|
/* the adv7175 has an autoincrement function, use it if
|
|
* the adapter understands raw I2C */
|
|
if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
|
|
/* do raw I2C, not smbus compatible */
|
|
u8 block_data[32];
|
|
int block_len;
|
|
|
|
while (len >= 2) {
|
|
block_len = 0;
|
|
block_data[block_len++] = reg = data[0];
|
|
do {
|
|
block_data[block_len++] = data[1];
|
|
reg++;
|
|
len -= 2;
|
|
data += 2;
|
|
} while (len >= 2 && data[0] == reg && block_len < 32);
|
|
ret = i2c_master_send(client, block_data, block_len);
|
|
if (ret < 0)
|
|
break;
|
|
}
|
|
} else {
|
|
/* do some slow I2C emulation kind of thing */
|
|
while (len >= 2) {
|
|
reg = *data++;
|
|
ret = adv7175_write(client, reg, *data++);
|
|
if (ret < 0)
|
|
break;
|
|
len -= 2;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void set_subcarrier_freq(struct i2c_client *client, int pass_through)
|
|
{
|
|
/* for some reason pass_through NTSC needs
|
|
* a different sub-carrier freq to remain stable. */
|
|
if (pass_through)
|
|
adv7175_write(client, 0x02, 0x00);
|
|
else
|
|
adv7175_write(client, 0x02, 0x55);
|
|
|
|
adv7175_write(client, 0x03, 0x55);
|
|
adv7175_write(client, 0x04, 0x55);
|
|
adv7175_write(client, 0x05, 0x25);
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
/* Output filter: S-Video Composite */
|
|
|
|
#define MR050 0x11 /* 0x09 */
|
|
#define MR060 0x14 /* 0x0c */
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
#define TR0MODE 0x46
|
|
#define TR0RST 0x80
|
|
|
|
#define TR1CAPT 0x80
|
|
#define TR1PLAY 0x00
|
|
|
|
static const unsigned char init_common[] = {
|
|
|
|
0x00, MR050, /* MR0, PAL enabled */
|
|
0x01, 0x00, /* MR1 */
|
|
0x02, 0x0c, /* subc. freq. */
|
|
0x03, 0x8c, /* subc. freq. */
|
|
0x04, 0x79, /* subc. freq. */
|
|
0x05, 0x26, /* subc. freq. */
|
|
0x06, 0x40, /* subc. phase */
|
|
|
|
0x07, TR0MODE, /* TR0, 16bit */
|
|
0x08, 0x21, /* */
|
|
0x09, 0x00, /* */
|
|
0x0a, 0x00, /* */
|
|
0x0b, 0x00, /* */
|
|
0x0c, TR1CAPT, /* TR1 */
|
|
0x0d, 0x4f, /* MR2 */
|
|
0x0e, 0x00, /* */
|
|
0x0f, 0x00, /* */
|
|
0x10, 0x00, /* */
|
|
0x11, 0x00, /* */
|
|
};
|
|
|
|
static const unsigned char init_pal[] = {
|
|
0x00, MR050, /* MR0, PAL enabled */
|
|
0x01, 0x00, /* MR1 */
|
|
0x02, 0x0c, /* subc. freq. */
|
|
0x03, 0x8c, /* subc. freq. */
|
|
0x04, 0x79, /* subc. freq. */
|
|
0x05, 0x26, /* subc. freq. */
|
|
0x06, 0x40, /* subc. phase */
|
|
};
|
|
|
|
static const unsigned char init_ntsc[] = {
|
|
0x00, MR060, /* MR0, NTSC enabled */
|
|
0x01, 0x00, /* MR1 */
|
|
0x02, 0x55, /* subc. freq. */
|
|
0x03, 0x55, /* subc. freq. */
|
|
0x04, 0x55, /* subc. freq. */
|
|
0x05, 0x25, /* subc. freq. */
|
|
0x06, 0x1a, /* subc. phase */
|
|
};
|
|
|
|
static int adv7175_command(struct i2c_client *client, unsigned cmd, void *arg)
|
|
{
|
|
struct adv7175 *encoder = i2c_get_clientdata(client);
|
|
|
|
switch (cmd) {
|
|
case VIDIOC_INT_INIT:
|
|
/* This is just for testing!!! */
|
|
adv7175_write_block(client, init_common,
|
|
sizeof(init_common));
|
|
adv7175_write(client, 0x07, TR0MODE | TR0RST);
|
|
adv7175_write(client, 0x07, TR0MODE);
|
|
break;
|
|
|
|
case VIDIOC_INT_S_STD_OUTPUT:
|
|
{
|
|
v4l2_std_id iarg = *(v4l2_std_id *) arg;
|
|
|
|
if (iarg & V4L2_STD_NTSC) {
|
|
adv7175_write_block(client, init_ntsc,
|
|
sizeof(init_ntsc));
|
|
if (encoder->input == 0)
|
|
adv7175_write(client, 0x0d, 0x4f); // Enable genlock
|
|
adv7175_write(client, 0x07, TR0MODE | TR0RST);
|
|
adv7175_write(client, 0x07, TR0MODE);
|
|
} else if (iarg & V4L2_STD_PAL) {
|
|
adv7175_write_block(client, init_pal,
|
|
sizeof(init_pal));
|
|
if (encoder->input == 0)
|
|
adv7175_write(client, 0x0d, 0x4f); // Enable genlock
|
|
adv7175_write(client, 0x07, TR0MODE | TR0RST);
|
|
adv7175_write(client, 0x07, TR0MODE);
|
|
} else if (iarg & V4L2_STD_SECAM) {
|
|
/* This is an attempt to convert
|
|
* SECAM->PAL (typically it does not work
|
|
* due to genlock: when decoder is in SECAM
|
|
* and encoder in in PAL the subcarrier can
|
|
* not be syncronized with horizontal
|
|
* quency) */
|
|
adv7175_write_block(client, init_pal,
|
|
sizeof(init_pal));
|
|
if (encoder->input == 0)
|
|
adv7175_write(client, 0x0d, 0x49); // Disable genlock
|
|
adv7175_write(client, 0x07, TR0MODE | TR0RST);
|
|
adv7175_write(client, 0x07, TR0MODE);
|
|
} else {
|
|
v4l_dbg(1, debug, client, "illegal norm: %llx\n", iarg);
|
|
return -EINVAL;
|
|
}
|
|
v4l_dbg(1, debug, client, "switched to %llx\n", iarg);
|
|
encoder->norm = iarg;
|
|
break;
|
|
}
|
|
|
|
case VIDIOC_INT_S_VIDEO_ROUTING:
|
|
{
|
|
struct v4l2_routing *route = arg;
|
|
|
|
/* RJ: *iarg = 0: input is from SAA7110
|
|
*iarg = 1: input is from ZR36060
|
|
*iarg = 2: color bar */
|
|
|
|
switch (route->input) {
|
|
case 0:
|
|
adv7175_write(client, 0x01, 0x00);
|
|
|
|
if (encoder->norm & V4L2_STD_NTSC)
|
|
set_subcarrier_freq(client, 1);
|
|
|
|
adv7175_write(client, 0x0c, TR1CAPT); /* TR1 */
|
|
if (encoder->norm & V4L2_STD_SECAM)
|
|
adv7175_write(client, 0x0d, 0x49); // Disable genlock
|
|
else
|
|
adv7175_write(client, 0x0d, 0x4f); // Enable genlock
|
|
adv7175_write(client, 0x07, TR0MODE | TR0RST);
|
|
adv7175_write(client, 0x07, TR0MODE);
|
|
//udelay(10);
|
|
break;
|
|
|
|
case 1:
|
|
adv7175_write(client, 0x01, 0x00);
|
|
|
|
if (encoder->norm & V4L2_STD_NTSC)
|
|
set_subcarrier_freq(client, 0);
|
|
|
|
adv7175_write(client, 0x0c, TR1PLAY); /* TR1 */
|
|
adv7175_write(client, 0x0d, 0x49);
|
|
adv7175_write(client, 0x07, TR0MODE | TR0RST);
|
|
adv7175_write(client, 0x07, TR0MODE);
|
|
/* udelay(10); */
|
|
break;
|
|
|
|
case 2:
|
|
adv7175_write(client, 0x01, 0x80);
|
|
|
|
if (encoder->norm & V4L2_STD_NTSC)
|
|
set_subcarrier_freq(client, 0);
|
|
|
|
adv7175_write(client, 0x0d, 0x49);
|
|
adv7175_write(client, 0x07, TR0MODE | TR0RST);
|
|
adv7175_write(client, 0x07, TR0MODE);
|
|
/* udelay(10); */
|
|
break;
|
|
|
|
default:
|
|
v4l_dbg(1, debug, client, "illegal input: %d\n", route->input);
|
|
return -EINVAL;
|
|
}
|
|
v4l_dbg(1, debug, client, "switched to %s\n", inputs[route->input]);
|
|
encoder->input = route->input;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* Generic i2c probe
|
|
* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
|
|
*/
|
|
static unsigned short normal_i2c[] = {
|
|
I2C_ADV7175 >> 1, (I2C_ADV7175 >> 1) + 1,
|
|
I2C_ADV7176 >> 1, (I2C_ADV7176 >> 1) + 1,
|
|
I2C_CLIENT_END
|
|
};
|
|
|
|
I2C_CLIENT_INSMOD;
|
|
|
|
static int adv7175_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
int i;
|
|
struct adv7175 *encoder;
|
|
|
|
/* Check if the adapter supports the needed features */
|
|
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
|
|
return -ENODEV;
|
|
|
|
v4l_info(client, "chip found @ 0x%x (%s)\n",
|
|
client->addr << 1, client->adapter->name);
|
|
|
|
encoder = kzalloc(sizeof(struct adv7175), GFP_KERNEL);
|
|
if (encoder == NULL)
|
|
return -ENOMEM;
|
|
encoder->norm = V4L2_STD_NTSC;
|
|
encoder->input = 0;
|
|
i2c_set_clientdata(client, encoder);
|
|
|
|
i = adv7175_write_block(client, init_common, sizeof(init_common));
|
|
if (i >= 0) {
|
|
i = adv7175_write(client, 0x07, TR0MODE | TR0RST);
|
|
i = adv7175_write(client, 0x07, TR0MODE);
|
|
i = adv7175_read(client, 0x12);
|
|
v4l_dbg(1, debug, client, "revision %d\n", i & 1);
|
|
}
|
|
if (i < 0)
|
|
v4l_dbg(1, debug, client, "init error 0x%x\n", i);
|
|
return 0;
|
|
}
|
|
|
|
static int adv7175_remove(struct i2c_client *client)
|
|
{
|
|
kfree(i2c_get_clientdata(client));
|
|
return 0;
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
static const struct i2c_device_id adv7175_id[] = {
|
|
{ "adv7175", 0 },
|
|
{ "adv7176", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, adv7175_id);
|
|
|
|
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
|
|
.name = "adv7175",
|
|
.driverid = I2C_DRIVERID_ADV7175,
|
|
.command = adv7175_command,
|
|
.probe = adv7175_probe,
|
|
.remove = adv7175_remove,
|
|
.id_table = adv7175_id,
|
|
};
|