LXR uboot/drivers/sound/maxim

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * maxim_codec.h -- MAXIM codec common interface file
   4 *
   5 * Copyright (C) 2013 Samsung Electronics
   6 * D Krishna Mohan <krishna.md@samsung.com>
   7 */
   8
   9#ifndef __MAXIM_COMMON_H__
  10#define __MAXIM_COMMON_H__
  11
  12enum maxim_codec_type {
  13        MAX98095,
  14        MAX98090,
  15};
  16
  17struct maxim_priv {
  18        enum maxim_codec_type devtype;
  19        unsigned int sysclk;
  20        unsigned int rate;
  21        unsigned int fmt;
  22        struct udevice *dev;
  23};
  24
  25#define MAXIM_AUDIO_I2C_BUS             7
  26#define MAXIM_AUDIO_I2C_REG_98095       0x22
  27
  28#define MAXIM_AUDIO_I2C_REG             MAXIM_AUDIO_I2C_REG_98095
  29
  30/*
  31 * Writes value to a device register through i2c
  32 *
  33 * @param priv  Private data for driver
  34 * @param reg   reg number to be write
  35 * @param data  data to be writen to the above registor
  36 *
  37 * @return      int value 1 for change, 0 for no change or negative error code.
  38 */
  39int maxim_i2c_write(struct maxim_priv *priv, unsigned int reg,
  40                    unsigned char data);
  41
  42/*
  43 * Read a value from a device register through i2c
  44 *
  45 * @param priv  Private data for driver
  46 * @param reg   reg number to be read
  47 * @param data  address of read data to be stored
  48 *
  49 * @return      int value 0 for success, -1 in case of error.
  50 */
  51unsigned int maxim_i2c_read(struct maxim_priv *priv, unsigned int reg,
  52                            unsigned char *data);
  53
  54/*
  55 * update device register bits through i2c
  56 *
  57 * @param priv  Private data for driver
  58 * @param reg   codec register
  59 * @param mask  register mask
  60 * @param value new value
  61 *
  62 * @return int value 0 for success, non-zero error code.
  63 */
  64int maxim_bic_or(struct maxim_priv *priv, unsigned int reg, unsigned char mask,
  65                 unsigned char value);
  66
  67#endif /* __MAXIM_COMMON_H__ */
  68