mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-20 03:04:01 +08:00
V4L/DVB (9198): adv7170: convert i2c driver for new i2c API
- Convert to use v4l2-i2c-drv-legacy.h to be able to handle the new i2c API - Cleanups - Use v4l_dbg/v4l_info to have uniform kernel messages Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
54c776a5bc
commit
b9a21f84bc
@ -29,43 +29,24 @@
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/fs.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/major.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/signal.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <asm/io.h>
|
||||
#include <asm/pgtable.h>
|
||||
#include <asm/page.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 ADV7170 video encoder driver");
|
||||
MODULE_AUTHOR("Maxim Yevtyushkin");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
|
||||
#define I2C_NAME(x) (x)->name
|
||||
|
||||
|
||||
static int debug;
|
||||
module_param(debug, int, 0);
|
||||
MODULE_PARM_DESC(debug, "Debug level (0-1)");
|
||||
|
||||
#define dprintk(num, format, args...) \
|
||||
do { \
|
||||
if (debug >= num) \
|
||||
printk(format, ##args); \
|
||||
} while (0)
|
||||
|
||||
/* ----------------------------------------------------------------------- */
|
||||
|
||||
struct adv7170 {
|
||||
@ -80,21 +61,12 @@ struct adv7170 {
|
||||
int sat;
|
||||
};
|
||||
|
||||
#define I2C_ADV7170 0xd4
|
||||
#define I2C_ADV7171 0x54
|
||||
|
||||
static char adv7170_name[] = "adv7170";
|
||||
static char adv7171_name[] = "adv7171";
|
||||
|
||||
static char *inputs[] = { "pass_through", "play_back" };
|
||||
static char *norms[] = { "PAL", "NTSC" };
|
||||
|
||||
/* ----------------------------------------------------------------------- */
|
||||
|
||||
static inline int
|
||||
adv7170_write (struct i2c_client *client,
|
||||
u8 reg,
|
||||
u8 value)
|
||||
static inline int adv7170_write(struct i2c_client *client, u8 reg, u8 value)
|
||||
{
|
||||
struct adv7170 *encoder = i2c_get_clientdata(client);
|
||||
|
||||
@ -102,17 +74,13 @@ adv7170_write (struct i2c_client *client,
|
||||
return i2c_smbus_write_byte_data(client, reg, value);
|
||||
}
|
||||
|
||||
static inline int
|
||||
adv7170_read (struct i2c_client *client,
|
||||
u8 reg)
|
||||
static inline int adv7170_read(struct i2c_client *client, u8 reg)
|
||||
{
|
||||
return i2c_smbus_read_byte_data(client, reg);
|
||||
}
|
||||
|
||||
static int
|
||||
adv7170_write_block (struct i2c_client *client,
|
||||
const u8 *data,
|
||||
unsigned int len)
|
||||
static int adv7170_write_block(struct i2c_client *client,
|
||||
const u8 *data, unsigned int len)
|
||||
{
|
||||
int ret = -1;
|
||||
u8 reg;
|
||||
@ -133,33 +101,25 @@ adv7170_write_block (struct i2c_client *client,
|
||||
encoder->reg[reg++] = data[1];
|
||||
len -= 2;
|
||||
data += 2;
|
||||
} while (len >= 2 && data[0] == reg &&
|
||||
block_len < 32);
|
||||
if ((ret = i2c_master_send(client, block_data,
|
||||
block_len)) < 0)
|
||||
} 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++;
|
||||
if ((ret = adv7170_write(client, reg,
|
||||
*data++)) < 0)
|
||||
ret = adv7170_write(client, reg, *data++);
|
||||
if (ret < 0)
|
||||
break;
|
||||
len -= 2;
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* ----------------------------------------------------------------------- */
|
||||
// Output filter: S-Video Composite
|
||||
|
||||
#define MR050 0x11 //0x09
|
||||
#define MR060 0x14 //0x0c
|
||||
|
||||
//---------------------------------------------------------------------------
|
||||
|
||||
#define TR0MODE 0x4c
|
||||
#define TR0RST 0x80
|
||||
@ -167,7 +127,6 @@ adv7170_write_block (struct i2c_client *client,
|
||||
#define TR1CAPT 0x00
|
||||
#define TR1PLAY 0x00
|
||||
|
||||
|
||||
static const unsigned char init_NTSC[] = {
|
||||
0x00, 0x10, // MR0
|
||||
0x01, 0x20, // MR1
|
||||
@ -227,15 +186,11 @@ static const unsigned char init_PAL[] = {
|
||||
};
|
||||
|
||||
|
||||
static int
|
||||
adv7170_command (struct i2c_client *client,
|
||||
unsigned int cmd,
|
||||
void * arg)
|
||||
static int adv7170_command(struct i2c_client *client, unsigned cmd, void *arg)
|
||||
{
|
||||
struct adv7170 *encoder = i2c_get_clientdata(client);
|
||||
|
||||
switch (cmd) {
|
||||
|
||||
case 0:
|
||||
#if 0
|
||||
/* This is just for testing!!! */
|
||||
@ -254,18 +209,16 @@ adv7170_command (struct i2c_client *client,
|
||||
VIDEO_ENCODER_NTSC;
|
||||
cap->inputs = 2;
|
||||
cap->outputs = 1;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
case ENCODER_SET_NORM:
|
||||
{
|
||||
int iarg = *(int *) arg;
|
||||
|
||||
dprintk(1, KERN_DEBUG "%s_command: set norm %d",
|
||||
I2C_NAME(client), iarg);
|
||||
v4l_dbg(1, debug, client, "set norm %d\n", iarg);
|
||||
|
||||
switch (iarg) {
|
||||
|
||||
case VIDEO_MODE_NTSC:
|
||||
adv7170_write_block(client, init_NTSC,
|
||||
sizeof(init_NTSC));
|
||||
@ -285,16 +238,13 @@ adv7170_command (struct i2c_client *client,
|
||||
break;
|
||||
|
||||
default:
|
||||
dprintk(1, KERN_ERR "%s: illegal norm: %d\n",
|
||||
I2C_NAME(client), iarg);
|
||||
v4l_dbg(1, debug, client, "illegal norm: %d\n", iarg);
|
||||
return -EINVAL;
|
||||
|
||||
}
|
||||
dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
|
||||
norms[iarg]);
|
||||
v4l_dbg(1, debug, client, "switched to %s\n", norms[iarg]);
|
||||
encoder->norm = iarg;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
case ENCODER_SET_INPUT:
|
||||
{
|
||||
@ -304,19 +254,17 @@ adv7170_command (struct i2c_client *client,
|
||||
*iarg = 1: input is from ZR36060
|
||||
*iarg = 2: color bar */
|
||||
|
||||
dprintk(1, KERN_DEBUG "%s_command: set input from %s\n",
|
||||
I2C_NAME(client),
|
||||
v4l_dbg(1, debug, client, "set input from %s\n",
|
||||
iarg == 0 ? "decoder" : "ZR36060");
|
||||
|
||||
switch (iarg) {
|
||||
|
||||
case 0:
|
||||
adv7170_write(client, 0x01, 0x20);
|
||||
adv7170_write(client, 0x08, TR1CAPT); /* TR1 */
|
||||
adv7170_write(client, 0x02, 0x0e); // Enable genlock
|
||||
adv7170_write(client, 0x07, TR0MODE | TR0RST);
|
||||
adv7170_write(client, 0x07, TR0MODE);
|
||||
//udelay(10);
|
||||
/* udelay(10); */
|
||||
break;
|
||||
|
||||
case 1:
|
||||
@ -325,20 +273,17 @@ adv7170_command (struct i2c_client *client,
|
||||
adv7170_write(client, 0x02, 0x08);
|
||||
adv7170_write(client, 0x07, TR0MODE | TR0RST);
|
||||
adv7170_write(client, 0x07, TR0MODE);
|
||||
//udelay(10);
|
||||
/* udelay(10); */
|
||||
break;
|
||||
|
||||
default:
|
||||
dprintk(1, KERN_ERR "%s: illegal input: %d\n",
|
||||
I2C_NAME(client), iarg);
|
||||
v4l_dbg(1, debug, client, "illegal input: %d\n", iarg);
|
||||
return -EINVAL;
|
||||
|
||||
}
|
||||
dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
|
||||
inputs[iarg]);
|
||||
v4l_dbg(1, debug, client, "switched to %s\n", inputs[iarg]);
|
||||
encoder->input = iarg;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
case ENCODER_SET_OUTPUT:
|
||||
{
|
||||
@ -348,16 +293,16 @@ adv7170_command (struct i2c_client *client,
|
||||
if (*iarg != 0) {
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
case ENCODER_ENABLE_OUTPUT:
|
||||
{
|
||||
int *iarg = arg;
|
||||
|
||||
encoder->enable = !!*iarg;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
default:
|
||||
return -EINVAL;
|
||||
@ -368,149 +313,67 @@ adv7170_command (struct i2c_client *client,
|
||||
|
||||
/* ----------------------------------------------------------------------- */
|
||||
|
||||
/*
|
||||
* Generic i2c probe
|
||||
* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
|
||||
*/
|
||||
static unsigned short normal_i2c[] =
|
||||
{ I2C_ADV7170 >> 1, (I2C_ADV7170 >> 1) + 1,
|
||||
I2C_ADV7171 >> 1, (I2C_ADV7171 >> 1) + 1,
|
||||
static unsigned short normal_i2c[] = {
|
||||
0xd4 >> 1, 0xd6 >> 1, /* adv7170 IDs */
|
||||
0x54 >> 1, 0x56 >> 1, /* adv7171 IDs */
|
||||
I2C_CLIENT_END
|
||||
};
|
||||
|
||||
static unsigned short ignore = I2C_CLIENT_END;
|
||||
I2C_CLIENT_INSMOD;
|
||||
|
||||
static struct i2c_client_address_data addr_data = {
|
||||
.normal_i2c = normal_i2c,
|
||||
.probe = &ignore,
|
||||
.ignore = &ignore,
|
||||
};
|
||||
|
||||
static struct i2c_driver i2c_driver_adv7170;
|
||||
|
||||
static int
|
||||
adv7170_detect_client (struct i2c_adapter *adapter,
|
||||
int address,
|
||||
int kind)
|
||||
static int adv7170_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
int i;
|
||||
struct i2c_client *client;
|
||||
struct adv7170 *encoder;
|
||||
char *dname;
|
||||
|
||||
dprintk(1,
|
||||
KERN_INFO
|
||||
"adv7170.c: detecting adv7170 client on address 0x%x\n",
|
||||
address << 1);
|
||||
int i;
|
||||
|
||||
/* Check if the adapter supports the needed features */
|
||||
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
|
||||
return 0;
|
||||
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
|
||||
return -ENODEV;
|
||||
|
||||
client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
|
||||
if (!client)
|
||||
return -ENOMEM;
|
||||
client->addr = address;
|
||||
client->adapter = adapter;
|
||||
client->driver = &i2c_driver_adv7170;
|
||||
if ((client->addr == I2C_ADV7170 >> 1) ||
|
||||
(client->addr == (I2C_ADV7170 >> 1) + 1)) {
|
||||
dname = adv7170_name;
|
||||
} else if ((client->addr == I2C_ADV7171 >> 1) ||
|
||||
(client->addr == (I2C_ADV7171 >> 1) + 1)) {
|
||||
dname = adv7171_name;
|
||||
} else {
|
||||
/* We should never get here!!! */
|
||||
kfree(client);
|
||||
return 0;
|
||||
}
|
||||
strlcpy(I2C_NAME(client), dname, sizeof(I2C_NAME(client)));
|
||||
v4l_info(client, "chip found @ 0x%x (%s)\n",
|
||||
client->addr << 1, client->adapter->name);
|
||||
|
||||
encoder = kzalloc(sizeof(struct adv7170), GFP_KERNEL);
|
||||
if (encoder == NULL) {
|
||||
kfree(client);
|
||||
if (encoder == NULL)
|
||||
return -ENOMEM;
|
||||
}
|
||||
encoder->norm = VIDEO_MODE_NTSC;
|
||||
encoder->input = 0;
|
||||
encoder->enable = 1;
|
||||
i2c_set_clientdata(client, encoder);
|
||||
|
||||
i = i2c_attach_client(client);
|
||||
if (i) {
|
||||
kfree(client);
|
||||
kfree(encoder);
|
||||
return i;
|
||||
}
|
||||
|
||||
i = adv7170_write_block(client, init_NTSC, sizeof(init_NTSC));
|
||||
if (i >= 0) {
|
||||
i = adv7170_write(client, 0x07, TR0MODE | TR0RST);
|
||||
i = adv7170_write(client, 0x07, TR0MODE);
|
||||
i = adv7170_read(client, 0x12);
|
||||
dprintk(1, KERN_INFO "%s_attach: rev. %d at 0x%02x\n",
|
||||
I2C_NAME(client), i & 1, client->addr << 1);
|
||||
v4l_dbg(1, debug, client, "revision %d\n", i & 1);
|
||||
}
|
||||
if (i < 0) {
|
||||
dprintk(1, KERN_ERR "%s_attach: init error 0x%x\n",
|
||||
I2C_NAME(client), i);
|
||||
}
|
||||
|
||||
if (i < 0)
|
||||
v4l_dbg(1, debug, client, "init error 0x%x\n", i);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
adv7170_attach_adapter (struct i2c_adapter *adapter)
|
||||
static int adv7170_remove(struct i2c_client *client)
|
||||
{
|
||||
dprintk(1,
|
||||
KERN_INFO
|
||||
"adv7170.c: starting probe for adapter %s (0x%x)\n",
|
||||
I2C_NAME(adapter), adapter->id);
|
||||
return i2c_probe(adapter, &addr_data, &adv7170_detect_client);
|
||||
}
|
||||
|
||||
static int
|
||||
adv7170_detach_client (struct i2c_client *client)
|
||||
{
|
||||
struct adv7170 *encoder = i2c_get_clientdata(client);
|
||||
int err;
|
||||
|
||||
err = i2c_detach_client(client);
|
||||
if (err) {
|
||||
return err;
|
||||
}
|
||||
|
||||
kfree(encoder);
|
||||
kfree(client);
|
||||
|
||||
kfree(i2c_get_clientdata(client));
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* ----------------------------------------------------------------------- */
|
||||
|
||||
static struct i2c_driver i2c_driver_adv7170 = {
|
||||
.driver = {
|
||||
.name = "adv7170", /* name */
|
||||
},
|
||||
|
||||
.id = I2C_DRIVERID_ADV7170,
|
||||
|
||||
.attach_adapter = adv7170_attach_adapter,
|
||||
.detach_client = adv7170_detach_client,
|
||||
.command = adv7170_command,
|
||||
static const struct i2c_device_id adv7170_id[] = {
|
||||
{ "adv7170", 0 },
|
||||
{ "adv7171", 0 },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, adv7170_id);
|
||||
|
||||
static int __init
|
||||
adv7170_init (void)
|
||||
{
|
||||
return i2c_add_driver(&i2c_driver_adv7170);
|
||||
}
|
||||
|
||||
static void __exit
|
||||
adv7170_exit (void)
|
||||
{
|
||||
i2c_del_driver(&i2c_driver_adv7170);
|
||||
}
|
||||
|
||||
module_init(adv7170_init);
|
||||
module_exit(adv7170_exit);
|
||||
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
|
||||
.name = "adv7170",
|
||||
.driverid = I2C_DRIVERID_ADV7170,
|
||||
.command = adv7170_command,
|
||||
.probe = adv7170_probe,
|
||||
.remove = adv7170_remove,
|
||||
.id_table = adv7170_id,
|
||||
};
|
||||
|
||||
Loading…
Reference in New Issue
Block a user