drivers/media/pci/mgb4/mgb4_i2c.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) 2021-2023 Digiteq Automotive
   4  *     author: Martin Tuma <martin.tuma@digiteqautomotive.com>
   5  */
   6
   7 #ifndef __MGB4_I2C_H__
   8 #define __MGB4_I2C_H__
   9
  10 #include <linux/i2c.h>
  11
  12 struct mgb4_i2c_client {
  13         struct i2c_client *client;
  14         int addr_size;
  15 };
  16
  17 struct mgb4_i2c_kv {
  18         u16 reg;
  19         u8 mask;
  20         u8 val;
  21 };
  22
  23 int mgb4_i2c_init(struct mgb4_i2c_client *client, struct i2c_adapter *adap,
  24                   struct i2c_board_info const *info, int addr_size);
  25 void mgb4_i2c_free(struct mgb4_i2c_client *client);
  26
  27 s32 mgb4_i2c_read_byte(struct mgb4_i2c_client *client, u16 reg);
  28 s32 mgb4_i2c_write_byte(struct mgb4_i2c_client *client, u16 reg, u8 val);
  29 s32 mgb4_i2c_mask_byte(struct mgb4_i2c_client *client, u16 reg, u8 mask,
  30                        u8 val);
  31
  32 int mgb4_i2c_configure(struct mgb4_i2c_client *client,
  33                        const struct mgb4_i2c_kv *values, size_t count);
  34
  35 #endif