*/
#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 <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
#include <linux/types.h>
-
-#include <linux/videodev.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_decoder.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-i2c-drv-legacy.h>
MODULE_DESCRIPTION("Philips SAA7111 video decoder driver");
MODULE_AUTHOR("Dave Perks");
MODULE_LICENSE("GPL");
-#include <linux/i2c.h>
-
-#define I2C_NAME(s) (s)->name
-
-#include <linux/video_decoder.h>
-
-static int debug = 0;
+static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Debug level (0-1)");
-#define dprintk(num, format, args...) \
- do { \
- if (debug >= num) \
- printk(format, ##args); \
- } while (0)
-
/* ----------------------------------------------------------------------- */
#define SAA7111_NR_REG 0x18
int norm;
int input;
int enable;
- int bright;
- int contrast;
- int hue;
- int sat;
};
-#define I2C_SAA7111 0x48
-
/* ----------------------------------------------------------------------- */
-static inline int
-saa7111_write (struct i2c_client *client,
- u8 reg,
- u8 value)
+static inline int saa7111_write(struct i2c_client *client, u8 reg, u8 value)
{
struct saa7111 *decoder = i2c_get_clientdata(client);
return i2c_smbus_write_byte_data(client, reg, value);
}
-static int
-saa7111_write_block (struct i2c_client *client,
- const u8 *data,
- unsigned int len)
+static inline void saa7111_write_if_changed(struct i2c_client *client, u8 reg, u8 value)
+{
+ struct saa7111 *decoder = i2c_get_clientdata(client);
+
+ if (decoder->reg[reg] != value) {
+ decoder->reg[reg] = value;
+ i2c_smbus_write_byte_data(client, reg, value);
+ }
+}
+
+static int saa7111_write_block(struct i2c_client *client, const u8 *data, unsigned int len)
{
int ret = -1;
u8 reg;
decoder->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 = saa7111_write(client, reg,
- *data++)) < 0)
+ ret = saa7111_write(client, reg, *data++);
+ if (ret < 0)
break;
len -= 2;
}
return ret;
}
-static int
-saa7111_init_decoder (struct i2c_client *client,
- struct video_decoder_init *init)
+static int saa7111_init_decoder(struct i2c_client *client,
+ struct video_decoder_init *init)
{
return saa7111_write_block(client, init->data, init->len);
}
-static inline int
-saa7111_read (struct i2c_client *client,
- u8 reg)
+static inline int saa7111_read(struct i2c_client *client, u8 reg)
{
return i2c_smbus_read_byte_data(client, reg);
}
0x17, 0x00, /* 17 - VBI */
};
-static int
-saa7111_command (struct i2c_client *client,
- unsigned int cmd,
- void *arg)
+static int saa7111_command(struct i2c_client *client, unsigned cmd, void *arg)
{
struct saa7111 *decoder = i2c_get_clientdata(client);
switch (cmd) {
-
case 0:
break;
case DECODER_INIT:
{
struct video_decoder_init *init = arg;
+ struct video_decoder_init vdi;
+
if (NULL != init)
return saa7111_init_decoder(client, init);
- else {
- struct video_decoder_init vdi;
- vdi.data = saa7111_i2c_init;
- vdi.len = sizeof(saa7111_i2c_init);
- return saa7111_init_decoder(client, &vdi);
- }
+ vdi.data = saa7111_i2c_init;
+ vdi.len = sizeof(saa7111_i2c_init);
+ return saa7111_init_decoder(client, &vdi);
}
case DECODER_DUMP:
for (i = 0; i < SAA7111_NR_REG; i += 16) {
int j;
- printk(KERN_DEBUG "%s: %03x", I2C_NAME(client), i);
+ v4l_info(client, "%03x", i);
for (j = 0; j < 16 && i + j < SAA7111_NR_REG; ++j) {
- printk(" %02x",
+ printk(KERN_CONT " %02x",
saa7111_read(client, i + j));
}
- printk("\n");
+ printk(KERN_CONT "\n");
}
- }
break;
+ }
case DECODER_GET_CAPABILITIES:
{
VIDEO_DECODER_CCIR;
cap->inputs = 8;
cap->outputs = 1;
- }
break;
+ }
case DECODER_GET_STATUS:
{
int res;
status = saa7111_read(client, 0x1f);
- dprintk(1, KERN_DEBUG "%s status: 0x%02x\n", I2C_NAME(client),
- status);
+ v4l_dbg(1, debug, client, "status: 0x%02x\n", status);
res = 0;
if ((status & (1 << 6)) == 0) {
res |= DECODER_STATUS_GOOD;
res |= DECODER_STATUS_COLOR;
}
*iarg = res;
- }
break;
+ }
case DECODER_SET_GPIO:
{
}
decoder->norm = *iarg;
- }
break;
+ }
case DECODER_SET_INPUT:
{
3) ? 0x80 :
0));
}
- }
break;
+ }
case DECODER_SET_OUTPUT:
{
if (*iarg != 0) {
return -EINVAL;
}
- }
break;
+ }
case DECODER_ENABLE_OUTPUT:
{
(decoder->reg[0x11] & 0xf3));
}
}
- }
break;
+ }
case DECODER_SET_PICTURE:
{
struct video_picture *pic = arg;
- if (decoder->bright != pic->brightness) {
- /* We want 0 to 255 we get 0-65535 */
- decoder->bright = pic->brightness;
- saa7111_write(client, 0x0a, decoder->bright >> 8);
- }
- if (decoder->contrast != pic->contrast) {
- /* We want 0 to 127 we get 0-65535 */
- decoder->contrast = pic->contrast;
- saa7111_write(client, 0x0b,
- decoder->contrast >> 9);
- }
- if (decoder->sat != pic->colour) {
- /* We want 0 to 127 we get 0-65535 */
- decoder->sat = pic->colour;
- saa7111_write(client, 0x0c, decoder->sat >> 9);
- }
- if (decoder->hue != pic->hue) {
- /* We want -128 to 127 we get 0-65535 */
- decoder->hue = pic->hue;
- saa7111_write(client, 0x0d,
- (decoder->hue - 32768) >> 8);
- }
- }
+ /* We want 0 to 255 we get 0-65535 */
+ saa7111_write_if_changed(client, 0x0a, pic->brightness >> 8);
+ /* We want 0 to 127 we get 0-65535 */
+ saa7111_write(client, 0x0b, pic->contrast >> 9);
+ /* We want 0 to 127 we get 0-65535 */
+ saa7111_write(client, 0x0c, pic->colour >> 9);
+ /* We want -128 to 127 we get 0-65535 */
+ saa7111_write(client, 0x0d, (pic->hue - 32768) >> 8);
break;
+ }
default:
return -EINVAL;
/* ----------------------------------------------------------------------- */
-/*
- * Generic i2c probe
- * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
- */
-static unsigned short normal_i2c[] = { I2C_SAA7111 >> 1, I2C_CLIENT_END };
+static unsigned short normal_i2c[] = { 0x48 >> 1, 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_saa7111;
-
-static int
-saa7111_detect_client (struct i2c_adapter *adapter,
- int address,
- int kind)
+static int saa7111_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
int i;
- struct i2c_client *client;
struct saa7111 *decoder;
struct video_decoder_init vdi;
- dprintk(1,
- KERN_INFO
- "saa7111.c: detecting saa7111 client on address 0x%x\n",
- address << 1);
-
/* 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 == 0)
- return -ENOMEM;
- client->addr = address;
- client->adapter = adapter;
- client->driver = &i2c_driver_saa7111;
- strlcpy(I2C_NAME(client), "saa7111", sizeof(I2C_NAME(client)));
+ v4l_info(client, "chip found @ 0x%x (%s)\n",
+ client->addr << 1, client->adapter->name);
decoder = kzalloc(sizeof(struct saa7111), GFP_KERNEL);
if (decoder == NULL) {
decoder->norm = VIDEO_MODE_NTSC;
decoder->input = 0;
decoder->enable = 1;
- decoder->bright = 32768;
- decoder->contrast = 32768;
- decoder->hue = 32768;
- decoder->sat = 32768;
i2c_set_clientdata(client, decoder);
- i = i2c_attach_client(client);
- if (i) {
- kfree(client);
- kfree(decoder);
- return i;
- }
-
vdi.data = saa7111_i2c_init;
vdi.len = sizeof(saa7111_i2c_init);
i = saa7111_init_decoder(client, &vdi);
if (i < 0) {
- dprintk(1, KERN_ERR "%s_attach error: init status %d\n",
- I2C_NAME(client), i);
+ v4l_dbg(1, debug, client, "init status %d\n", i);
} else {
- dprintk(1,
- KERN_INFO
- "%s_attach: chip version %x at address 0x%x\n",
- I2C_NAME(client), saa7111_read(client, 0x00) >> 4,
- client->addr << 1);
+ v4l_dbg(1, debug, client, "revision %x\n",
+ saa7111_read(client, 0x00) >> 4);
}
-
return 0;
}
-static int
-saa7111_attach_adapter (struct i2c_adapter *adapter)
+static int saa7111_remove(struct i2c_client *client)
{
- dprintk(1,
- KERN_INFO
- "saa7111.c: starting probe for adapter %s (0x%x)\n",
- I2C_NAME(adapter), adapter->id);
- return i2c_probe(adapter, &addr_data, &saa7111_detect_client);
-}
-
-static int
-saa7111_detach_client (struct i2c_client *client)
-{
- struct saa7111 *decoder = i2c_get_clientdata(client);
- int err;
-
- err = i2c_detach_client(client);
- if (err) {
- return err;
- }
-
- kfree(decoder);
- kfree(client);
-
+ kfree(i2c_get_clientdata(client));
return 0;
}
/* ----------------------------------------------------------------------- */
-static struct i2c_driver i2c_driver_saa7111 = {
- .driver = {
- .name = "saa7111",
- },
-
- .id = I2C_DRIVERID_SAA7111A,
+static const struct i2c_device_id saa7111_id[] = {
+ { "saa7111_old", 0 }, /* "saa7111" maps to the saa7115 driver */
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, saa7111_id);
- .attach_adapter = saa7111_attach_adapter,
- .detach_client = saa7111_detach_client,
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+ .name = "saa7111",
+ .driverid = I2C_DRIVERID_SAA7111A,
.command = saa7111_command,
+ .probe = saa7111_probe,
+ .remove = saa7111_remove,
+ .id_table = saa7111_id,
};
-
-static int __init
-saa7111_init (void)
-{
- return i2c_add_driver(&i2c_driver_saa7111);
-}
-
-static void __exit
-saa7111_exit (void)
-{
- i2c_del_driver(&i2c_driver_saa7111);
-}
-
-module_init(saa7111_init);
-module_exit(saa7111_exit);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff