sound/soc/codecs/rt5514-spi.h

   1 /*
   2  * rt5514-spi.h  --  RT5514 driver
   3  *
   4  * Copyright 2015 Realtek Semiconductor Corp.
   5  * Author: Oder Chiou <oder_chiou@realtek.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11
  12 #ifndef __RT5514_SPI_H__
  13 #define __RT5514_SPI_H__
  14
  15 /**
  16  * RT5514_SPI_BUF_LEN is the buffer size of SPI master controller.
  17 */
  18 #define RT5514_SPI_BUF_LEN              240
  19
  20 #define RT5514_BUFFER_VOICE_BASE        0x18001034
  21 #define RT5514_BUFFER_VOICE_LIMIT       0x18001038
  22 #define RT5514_BUFFER_VOICE_RP          0x1800103c
  23 #define RT5514_BUFFER_VOICE_SIZE        0x18001040
  24
  25 /* SPI Command */
  26 enum {
  27         RT5514_SPI_CMD_16_READ = 0,
  28         RT5514_SPI_CMD_16_WRITE,
  29         RT5514_SPI_CMD_32_READ,
  30         RT5514_SPI_CMD_32_WRITE,
  31         RT5514_SPI_CMD_BURST_READ,
  32         RT5514_SPI_CMD_BURST_WRITE,
  33 };
  34
  35 int rt5514_spi_burst_read(unsigned int addr, u8 *rxbuf, size_t len);
  36 int rt5514_spi_burst_write(u32 addr, const u8 *txbuf, size_t len);
  37
  38 #endif /* __RT5514_SPI_H__ */