Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
[sfrench/cifs-2.6.git] / drivers / media / video / cs53l32a.c
index b421068f7ea30bc3bf778cdd747b1e45284f9fc3..f41bfde045fe9dcb667e1373ac6e8424599db459 100644 (file)
 #include <linux/i2c-id.h>
 #include <linux/videodev.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);
 
@@ -56,28 +58,27 @@ static int cs53l32a_read(struct i2c_client *client, u8 reg)
        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)
 {
-       struct v4l2_audio *input = arg;
+       struct v4l2_routing *route = arg;
        struct v4l2_control *ctrl = arg;
 
        switch (cmd) {
-       case VIDIOC_S_AUDIO:
+       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 (input->index > 2) {
-                       v4l_err(client, "Invalid input %d.\n", input->index);
+               if (route->input > 2) {
+                       v4l_err(client, "Invalid input %d.\n", route->input);
                        return -EINVAL;
                }
-               cs53l32a_write(client, 0x01, 0x01 + (input->index << 4));
-               break;
-
-       case VIDIOC_G_AUDIO:
-               memset(input, 0, sizeof(*input));
-               input->index = (cs53l32a_read(client, 0x01) >> 4) & 3;
+               cs53l32a_write(client, 0x01, 0x01 + (route->input << 4));
                break;
 
        case VIDIOC_G_CTRL:
@@ -103,6 +104,10 @@ static int cs53l32a_command(struct i2c_client *client, unsigned int cmd,
                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);
@@ -130,33 +135,23 @@ static int cs53l32a_command(struct i2c_client *client, unsigned int cmd,
  * 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)
 {
-       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;
+       if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+               return -EIO;
 
-       client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
-       if (client == 0)
-               return -ENOMEM;
-
-       memset(client, 0, sizeof(struct i2c_client));
-       client->addr = address;
-       client->adapter = adapter;
-       client->driver = &i2c_driver;
        snprintf(client->name, sizeof(client->name) - 1, "cs53l32a");
 
-       v4l_info(client, "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);
 
-               v4l_dbg(1, client, "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 */
@@ -174,57 +169,15 @@ static int cs53l32a_attach(struct i2c_adapter *adapter, int address, int kind)
        for (i = 1; i <= 7; i++) {
                u8 v = cs53l32a_read(client, i);
 
-               v4l_dbg(1, client, "Read Reg %d %02x\n", i, v);
-       }
-
-       i2c_attach_client(client);
-
-       return 0;
-}
-
-static int cs53l32a_probe(struct i2c_adapter *adapter)
-{
-       if (adapter->class & I2C_CLASS_TV_ANALOG)
-               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;
+               v4l_dbg(1, debug, client, "Read Reg %d %02x\n", i, v);
        }
-       kfree(client);
-
        return 0;
 }
 
-/* ----------------------------------------------------------------------- */
-
-/* i2c implementation */
-static struct i2c_driver i2c_driver = {
-       .driver = {
-               .name = "cs53l32a",
-       },
-       .id = I2C_DRIVERID_CS53L32A,
-       .attach_adapter = cs53l32a_probe,
-       .detach_client = cs53l32a_detach,
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+       .name = "cs53l32a",
+       .driverid = I2C_DRIVERID_CS53L32A,
        .command = cs53l32a_command,
+       .probe = cs53l32a_probe,
 };
 
-
-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);