#include <asm/uaccess.h>
#include <linux/i2c.h>
#include <linux/i2c-id.h>
-#include <linux/videodev.h>
-#include <media/audiochip.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv-legacy.h>
MODULE_DESCRIPTION("i2c device driver for cs53l32a Audio ADC");
MODULE_AUTHOR("Martin Vaughan");
MODULE_LICENSE("GPL");
-static int debug = 0;
+static int debug;
module_param(debug, bool, 0644);
-MODULE_PARM_DESC(debug, "Debugging messages\n\t\t\t0=Off (default), 1=On");
-
-#define cs53l32a_dbg(fmt, arg...) \
- do { \
- if (debug) \
- printk(KERN_INFO "%s debug %d-%04x: " fmt, client->driver->name, \
- i2c_adapter_id(client->adapter), client->addr , ## arg); \
- } while (0)
-
-#define cs53l32a_err(fmt, arg...) do { \
- printk(KERN_ERR "%s %d-%04x: " fmt, client->driver->name, \
- i2c_adapter_id(client->adapter), client->addr , ## arg); } while (0)
-#define cs53l32a_info(fmt, arg...) do { \
- printk(KERN_INFO "%s %d-%04x: " fmt, client->driver->name, \
- i2c_adapter_id(client->adapter), client->addr , ## arg); } while (0)
+MODULE_PARM_DESC(debug, "Debugging messages, 0=Off (default), 1=On");
static unsigned short normal_i2c[] = { 0x22 >> 1, I2C_CLIENT_END };
-
I2C_CLIENT_INSMOD;
/* ----------------------------------------------------------------------- */
return i2c_smbus_read_byte_data(client, reg);
}
-static int cs53l32a_command(struct i2c_client *client, unsigned int cmd,
- void *arg)
+static int cs53l32a_command(struct i2c_client *client, unsigned cmd, void *arg)
{
- int *input = arg;
+ struct v4l2_routing *route = arg;
+ struct v4l2_control *ctrl = arg;
switch (cmd) {
- case AUDC_SET_INPUT:
- switch (*input) {
- case AUDIO_TUNER:
- cs53l32a_write(client, 0x01, 0x01);
- break;
- case AUDIO_EXTERN:
- cs53l32a_write(client, 0x01, 0x21);
- break;
- case AUDIO_MUTE:
- cs53l32a_write(client, 0x03, 0xF0);
- break;
- case AUDIO_UNMUTE:
- cs53l32a_write(client, 0x03, 0x30);
- break;
- default:
- cs53l32a_err("Invalid input %d.\n", *input);
+ case VIDIOC_INT_G_AUDIO_ROUTING:
+ route->input = (cs53l32a_read(client, 0x01) >> 4) & 3;
+ route->output = 0;
+ break;
+
+ case VIDIOC_INT_S_AUDIO_ROUTING:
+ /* There are 2 physical inputs, but the second input can be
+ placed in two modes, the first mode bypasses the PGA (gain),
+ the second goes through the PGA. Hence there are three
+ possible inputs to choose from. */
+ if (route->input > 2) {
+ v4l_err(client, "Invalid input %d.\n", route->input);
return -EINVAL;
}
+ cs53l32a_write(client, 0x01, 0x01 + (route->input << 4));
+ break;
+
+ case VIDIOC_G_CTRL:
+ if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
+ ctrl->value = (cs53l32a_read(client, 0x03) & 0xc0) != 0;
+ break;
+ }
+ if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
+ return -EINVAL;
+ ctrl->value = (s8)cs53l32a_read(client, 0x04);
break;
case VIDIOC_S_CTRL:
- {
- struct v4l2_control *ctrl = arg;
-
- if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
- return -EINVAL;
- if (ctrl->value > 12 || ctrl->value < -90)
- return -EINVAL;
- cs53l32a_write(client, 0x04, (u8) ctrl->value);
- cs53l32a_write(client, 0x05, (u8) ctrl->value);
+ if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
+ cs53l32a_write(client, 0x03, ctrl->value ? 0xf0 : 0x30);
break;
}
+ if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
+ return -EINVAL;
+ if (ctrl->value > 12 || ctrl->value < -96)
+ return -EINVAL;
+ cs53l32a_write(client, 0x04, (u8) ctrl->value);
+ cs53l32a_write(client, 0x05, (u8) ctrl->value);
+ break;
+
+ case VIDIOC_G_CHIP_IDENT:
+ return v4l2_chip_ident_i2c_client(client,
+ arg, V4L2_IDENT_CS53l32A, 0);
case VIDIOC_LOG_STATUS:
{
u8 v = cs53l32a_read(client, 0x01);
u8 m = cs53l32a_read(client, 0x03);
+ s8 vol = cs53l32a_read(client, 0x04);
- cs53l32a_info("Input: %s%s\n",
- v == 0x21 ? "external line in" : "tuner",
+ v4l_info(client, "Input: %d%s\n", (v >> 4) & 3,
(m & 0xC0) ? " (muted)" : "");
+ v4l_info(client, "Volume: %d dB\n", vol);
break;
}
* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
*/
-static struct i2c_driver i2c_driver;
-
-static int cs53l32a_attach(struct i2c_adapter *adapter, int address, int kind)
+static int cs53l32a_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
- struct i2c_client *client;
int i;
/* Check if the adapter supports the needed features */
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- return 0;
-
- client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
- if (client == 0)
- return -ENOMEM;
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -EIO;
- memset(client, 0, sizeof(struct i2c_client));
- client->addr = address;
- client->adapter = adapter;
- client->driver = &i2c_driver;
- client->flags = I2C_CLIENT_ALLOW_USE;
- snprintf(client->name, sizeof(client->name) - 1, "cs53l32a");
+ if (!id)
+ strlcpy(client->name, "cs53l32a", sizeof(client->name));
- cs53l32a_info("chip found @ 0x%x (%s)\n", address << 1, adapter->name);
+ v4l_info(client, "chip found @ 0x%x (%s)\n",
+ client->addr << 1, client->adapter->name);
for (i = 1; i <= 7; i++) {
u8 v = cs53l32a_read(client, i);
- cs53l32a_dbg("Read Reg %d %02x\n", i, v);
+ v4l_dbg(1, debug, client, "Read Reg %d %02x\n", i, v);
}
/* Set cs53l32a internal register for Adaptec 2010/2410 setup */
for (i = 1; i <= 7; i++) {
u8 v = cs53l32a_read(client, i);
- cs53l32a_dbg("Read Reg %d %02x\n", i, v);
+ v4l_dbg(1, debug, client, "Read Reg %d %02x\n", i, v);
}
-
- i2c_attach_client(client);
-
return 0;
}
-static int cs53l32a_probe(struct i2c_adapter *adapter)
-{
-#ifdef I2C_CLASS_TV_ANALOG
- if (adapter->class & I2C_CLASS_TV_ANALOG)
-#else
- if (adapter->id == I2C_HW_B_BT848)
-#endif
- return i2c_probe(adapter, &addr_data, cs53l32a_attach);
- return 0;
-}
-
-static int cs53l32a_detach(struct i2c_client *client)
-{
- int err;
-
- err = i2c_detach_client(client);
- if (err) {
- return err;
- }
- kfree(client);
-
- return 0;
-}
-
-/* ----------------------------------------------------------------------- */
+static const struct i2c_device_id cs53l32a_id[] = {
+ { "cs53l32a", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, cs53l32a_id);
-/* i2c implementation */
-static struct i2c_driver i2c_driver = {
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.name = "cs53l32a",
- .id = I2C_DRIVERID_CS53L32A,
- .attach_adapter = cs53l32a_probe,
- .detach_client = cs53l32a_detach,
+ .driverid = I2C_DRIVERID_CS53L32A,
.command = cs53l32a_command,
- .owner = THIS_MODULE,
+ .probe = cs53l32a_probe,
+ .id_table = cs53l32a_id,
};
-
-
-static int __init cs53l32a_init_module(void)
-{
- return i2c_add_driver(&i2c_driver);
-}
-
-static void __exit cs53l32a_cleanup_module(void)
-{
- i2c_del_driver(&i2c_driver);
-}
-
-module_init(cs53l32a_init_module);
-module_exit(cs53l32a_cleanup_module);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff