tests/qtest/qtest_aspeed.h

   1 /*
   2  * Aspeed i2c bus interface to reading and writing to i2c device registers
   3  *
   4  * Copyright (c) 2023 IBM Corporation
   5  *
   6  * Authors:
   7  *   Stefan Berger <stefanb@linux.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12 #ifndef QTEST_ASPEED_H
  13 #define QTEST_ASPEED_H
  14
  15 #include "libqtest.h"
  16
  17 #define AST2600_ASPEED_I2C_BASE_ADDR 0x1e78a000
  18
  19 /* Implements only AST2600 I2C controller */
  20
  21 static inline uint32_t ast2600_i2c_calc_bus_addr(uint8_t bus_num)
  22 {
  23     return AST2600_ASPEED_I2C_BASE_ADDR + 0x80 + bus_num * 0x80;
  24 }
  25
  26 uint8_t aspeed_i2c_readb(QTestState *s,
  27                          uint32_t baseaddr, uint8_t slave_addr, uint8_t reg);
  28 uint16_t aspeed_i2c_readw(QTestState *s,
  29                           uint32_t baseaddr, uint8_t slave_addr, uint8_t reg);
  30 uint32_t aspeed_i2c_readl(QTestState *s,
  31                           uint32_t baseaddr, uint8_t slave_addr, uint8_t reg);
  32 void aspeed_i2c_writeb(QTestState *s, uint32_t baseaddr, uint8_t slave_addr,
  33                        uint8_t reg, uint8_t v);
  34 void aspeed_i2c_writew(QTestState *s, uint32_t baseaddr, uint8_t slave_addr,
  35                        uint8_t reg, uint16_t v);
  36 void aspeed_i2c_writel(QTestState *s, uint32_t baseaddr, uint8_t slave_addr,
  37                        uint8_t reg, uint32_t v);
  38
  39 #endif