qemu-patch-raspberry4/tests/libqos/i2c.h
Paolo Bonzini e8ecb706a8 libqos: move common i2c code to libqos
The functions to read/write 8-bit or 16-bit registers are the same
in tmp105 and pca9552 tests, and in fact they are a special case of
"read block"/"write block" functionality; read block in turn is used
in ds1338-test.

Move everything inside libqos-test, removing the duplication.  Account
for the small differences by adding to tmp105-test.c the "read register
after writing" behavior that is specific to it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-06-03 14:03:01 +02:00

49 lines
1.4 KiB
C

/*
* I2C libqos
*
* Copyright (c) 2012 Andreas Färber
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef LIBQOS_I2C_H
#define LIBQOS_I2C_H
#include "libqtest.h"
typedef struct I2CAdapter I2CAdapter;
struct I2CAdapter {
void (*send)(I2CAdapter *adapter, uint8_t addr,
const uint8_t *buf, uint16_t len);
void (*recv)(I2CAdapter *adapter, uint8_t addr,
uint8_t *buf, uint16_t len);
QTestState *qts;
};
#define OMAP2_I2C_1_BASE 0x48070000
void i2c_send(I2CAdapter *i2c, uint8_t addr,
const uint8_t *buf, uint16_t len);
void i2c_recv(I2CAdapter *i2c, uint8_t addr,
uint8_t *buf, uint16_t len);
void i2c_read_block(I2CAdapter *i2c, uint8_t addr, uint8_t reg,
uint8_t *buf, uint16_t len);
void i2c_write_block(I2CAdapter *i2c, uint8_t addr, uint8_t reg,
const uint8_t *buf, uint16_t len);
uint8_t i2c_get8(I2CAdapter *i2c, uint8_t addr, uint8_t reg);
uint16_t i2c_get16(I2CAdapter *i2c, uint8_t addr, uint8_t reg);
void i2c_set8(I2CAdapter *i2c, uint8_t addr, uint8_t reg,
uint8_t value);
void i2c_set16(I2CAdapter *i2c, uint8_t addr, uint8_t reg,
uint16_t value);
/* libi2c-omap.c */
I2CAdapter *omap_i2c_create(QTestState *qts, uint64_t addr);
/* libi2c-imx.c */
I2CAdapter *imx_i2c_create(QTestState *qts, uint64_t addr);
#endif