dm: sound: Create a uclass for i2s

[oweals/u-boot.git] / include / i2s.h

diff --git a/include/i2s.h b/include/i2s.h
index f23862ca040636385e6b1053a877d0a8c55c5db7..28f6184811c1d2f4a112fa519aa249206c51c8eb 100644 (file)
--- a/include/i2s.h
+++ b/include/i2s.h
@@ -87,17 +87,41 @@ struct i2s_uc_priv {
        unsigned int id;                /* I2S controller id */
 };
 
+/* Operations for i2s devices */
+struct i2s_ops {
+       /**
+        * tx_data() - Transmit audio data
+        *
+        * @dev: I2C device
+        * @data: Data buffer to play
+        * @data_size: Size of data buffer in bytes
+        * @return 0 if OK, -ve on error
+        */
+       int (*tx_data)(struct udevice *dev, void *data, uint data_size);
+};
+
+#define i2s_get_ops(dev)       ((struct i2s_ops *)(dev)->driver->ops)
+
+/**
+ * i2s_tx_data() - Transmit audio data
+ *
+ * @dev: I2C device
+ * @data: Data buffer to play
+ * @data_size: Size of data buffer in bytes
+ * @return 0 if OK, -ve on error
+ */
+int i2s_tx_data(struct udevice *dev, void *data, uint data_size);
+
 /*
  * Sends the given data through i2s tx
  *
  * @param pi2s_tx      pointer of i2s transmitter parameter structure.
  * @param data         address of the data buffer
- * @param data_size    array size of the int buffer (total size / size of int)
- *
+ * @param data_size    size of the data (in bytes)
  * @return             int value 0 for success, -1 in case of error
  */
-int i2s_transfer_tx_data(struct i2s_uc_priv *pi2s_tx, unsigned int *data,
-                        unsigned long data_size);
+int i2s_transfer_tx_data(struct i2s_uc_priv *pi2s_tx, void *data,
+                        uint data_size);
 
 /*
  * Initialise i2s transmiter