| 1 | /* |
| 2 | * I2C libqos |
| 3 | * |
| 4 | * Copyright (c) 2012 Andreas Färber |
| 5 | * |
| 6 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 7 | * See the COPYING file in the top-level directory. |
| 8 | */ |
| 9 | #ifndef LIBQOS_I2C_H |
| 10 | #define LIBQOS_I2C_H |
| 11 | |
| 12 | #include "../libqtest.h" |
| 13 | #include "qgraph.h" |
| 14 | |
| 15 | typedef struct I2CAdapter I2CAdapter; |
| 16 | struct I2CAdapter { |
| 17 | void (*send)(I2CAdapter *adapter, uint8_t addr, |
| 18 | const uint8_t *buf, uint16_t len); |
| 19 | void (*recv)(I2CAdapter *adapter, uint8_t addr, |
| 20 | uint8_t *buf, uint16_t len); |
| 21 | |
| 22 | QTestState *qts; |
| 23 | }; |
| 24 | |
| 25 | typedef struct QI2CAddress QI2CAddress; |
| 26 | struct QI2CAddress { |
| 27 | uint8_t addr; |
| 28 | }; |
| 29 | |
| 30 | typedef struct QI2CDevice QI2CDevice; |
| 31 | struct QI2CDevice { |
| 32 | /* |
| 33 | * For now, all devices are simple enough that there is no need for |
| 34 | * them to define their own constructor and get_driver functions. |
| 35 | * Therefore, QOSGraphObject is included directly in QI2CDevice; |
| 36 | * the tests expect to get a QI2CDevice rather than doing something |
| 37 | * like obj->get_driver("i2c-device"). |
| 38 | * |
| 39 | * In fact there is no i2c-device interface even, because there are |
| 40 | * no generic I2C tests). |
| 41 | */ |
| 42 | QOSGraphObject obj; |
| 43 | I2CAdapter *bus; |
| 44 | uint8_t addr; |
| 45 | }; |
| 46 | |
| 47 | void *i2c_device_create(void *i2c_bus, QGuestAllocator *alloc, void *addr); |
| 48 | void add_qi2c_address(QOSGraphEdgeOptions *opts, QI2CAddress *addr); |
| 49 | |
| 50 | void qi2c_send(QI2CDevice *dev, const uint8_t *buf, uint16_t len); |
| 51 | void qi2c_recv(QI2CDevice *dev, uint8_t *buf, uint16_t len); |
| 52 | |
| 53 | void i2c_read_block(QI2CDevice *dev, uint8_t reg, |
| 54 | uint8_t *buf, uint16_t len); |
| 55 | void i2c_write_block(QI2CDevice *dev, uint8_t reg, |
| 56 | const uint8_t *buf, uint16_t len); |
| 57 | uint8_t i2c_get8(QI2CDevice *dev, uint8_t reg); |
| 58 | uint16_t i2c_get16(QI2CDevice *dev, uint8_t reg); |
| 59 | void i2c_set8(QI2CDevice *dev, uint8_t reg, uint8_t value); |
| 60 | void i2c_set16(QI2CDevice *dev, uint8_t reg, uint16_t value); |
| 61 | |
| 62 | /* i2c-omap.c */ |
| 63 | typedef struct OMAPI2C { |
| 64 | QOSGraphObject obj; |
| 65 | I2CAdapter parent; |
| 66 | |
| 67 | uint64_t addr; |
| 68 | } OMAPI2C; |
| 69 | |
| 70 | void omap_i2c_init(OMAPI2C *s, QTestState *qts, uint64_t addr); |
| 71 | |
| 72 | /* i2c-imx.c */ |
| 73 | typedef struct IMXI2C { |
| 74 | QOSGraphObject obj; |
| 75 | I2CAdapter parent; |
| 76 | |
| 77 | uint64_t addr; |
| 78 | } IMXI2C; |
| 79 | |
| 80 | void imx_i2c_init(IMXI2C *s, QTestState *qts, uint64_t addr); |
| 81 | |
| 82 | #endif |