83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
/*
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* I2C libqos
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*
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* Copyright (c) 2012 Andreas Färber
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef LIBQOS_I2C_H
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#define LIBQOS_I2C_H
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#include "libqtest.h"
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#include "qgraph.h"
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typedef struct I2CAdapter I2CAdapter;
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struct I2CAdapter {
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void (*send)(I2CAdapter *adapter, uint8_t addr,
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const uint8_t *buf, uint16_t len);
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void (*recv)(I2CAdapter *adapter, uint8_t addr,
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uint8_t *buf, uint16_t len);
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QTestState *qts;
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};
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typedef struct QI2CAddress QI2CAddress;
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struct QI2CAddress {
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uint8_t addr;
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};
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typedef struct QI2CDevice QI2CDevice;
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struct QI2CDevice {
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/*
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* For now, all devices are simple enough that there is no need for
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* them to define their own constructor and get_driver functions.
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* Therefore, QOSGraphObject is included directly in QI2CDevice;
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* the tests expect to get a QI2CDevice rather than doing something
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* like obj->get_driver("i2c-device").
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*
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* In fact there is no i2c-device interface even, because there are
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* no generic I2C tests).
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*/
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QOSGraphObject obj;
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I2CAdapter *bus;
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uint8_t addr;
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};
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void *i2c_device_create(void *i2c_bus, QGuestAllocator *alloc, void *addr);
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void add_qi2c_address(QOSGraphEdgeOptions *opts, QI2CAddress *addr);
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void qi2c_send(QI2CDevice *dev, const uint8_t *buf, uint16_t len);
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void qi2c_recv(QI2CDevice *dev, uint8_t *buf, uint16_t len);
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void i2c_read_block(QI2CDevice *dev, uint8_t reg,
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uint8_t *buf, uint16_t len);
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void i2c_write_block(QI2CDevice *dev, uint8_t reg,
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const uint8_t *buf, uint16_t len);
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uint8_t i2c_get8(QI2CDevice *dev, uint8_t reg);
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uint16_t i2c_get16(QI2CDevice *dev, uint8_t reg);
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void i2c_set8(QI2CDevice *dev, uint8_t reg, uint8_t value);
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void i2c_set16(QI2CDevice *dev, uint8_t reg, uint16_t value);
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/* i2c-omap.c */
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typedef struct OMAPI2C {
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QOSGraphObject obj;
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I2CAdapter parent;
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uint64_t addr;
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} OMAPI2C;
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void omap_i2c_init(OMAPI2C *s, QTestState *qts, uint64_t addr);
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/* i2c-imx.c */
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typedef struct IMXI2C {
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QOSGraphObject obj;
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I2CAdapter parent;
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uint64_t addr;
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} IMXI2C;
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void imx_i2c_init(IMXI2C *s, QTestState *qts, uint64_t addr);
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#endif
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