+/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2012 Samsung Electronics
* R. Chandrasekar <rcsekar@samsung.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
*/
#ifndef __I2S_H__
};
/* This structure stores the i2s related information */
-struct i2stx_info {
+struct i2s_uc_priv {
unsigned int rfs; /* LR clock frame size */
- unsigned int bfs; /* Bit slock frame size */
+ unsigned int bfs; /* Bit clock frame size */
unsigned int audio_pll_clk; /* Audio pll frequency in Hz */
unsigned int samplingrate; /* sampling rate */
unsigned int bitspersample; /* bits per sample */
unsigned int channels; /* audio channels */
unsigned int base_address; /* I2S Register Base */
+ unsigned int id; /* I2S controller id */
};
-/*
- * 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)
+/* 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
*
- * @return int value 0 for success, -1 in case of error
+ * @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_transfer_tx_data(struct i2stx_info *pi2s_tx, unsigned *data,
- unsigned long data_size);
+int i2s_tx_data(struct udevice *dev, void *data, uint data_size);
/*
- * Initialise i2s transmiter
+ * Sends the given data through i2s tx
*
* @param pi2s_tx pointer of i2s transmitter parameter structure.
- *
- * @return int value 0 for success, -1 in case of error
+ * @param data address of the data buffer
+ * @param data_size size of the data (in bytes)
+ * Return: int value 0 for success, -1 in case of error
*/
-int i2s_tx_init(struct i2stx_info *pi2s_tx);
+int i2s_transfer_tx_data(struct i2s_uc_priv *pi2s_tx, void *data,
+ uint data_size);
#endif /* __I2S_H__ */