diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/qemu-symbian-svp/hw/smbus.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/symbian-qemu-0.9.1-12/qemu-symbian-svp/hw/smbus.h Fri Jul 31 15:01:17 2009 +0100 @@ -0,0 +1,69 @@ +/* + * QEMU SMBus API + * + * Copyright (c) 2007 Arastra, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "i2c.h" + +struct SMBusDevice { + /* The SMBus protocol is implemented on top of I2C. */ + i2c_slave i2c; + + /* Callbacks set by the device. */ + void (*quick_cmd)(SMBusDevice *dev, uint8_t read); + void (*send_byte)(SMBusDevice *dev, uint8_t val); + uint8_t (*receive_byte)(SMBusDevice *dev); + /* We can't distinguish between a word write and a block write with + length 1, so pass the whole data block including the length byte + (if present). The device is responsible figuring out what type of + command this is. */ + void (*write_data)(SMBusDevice *dev, uint8_t cmd, uint8_t *buf, int len); + /* Likewise we can't distinguish between different reads, or even know + the length of the read until the read is complete, so read data a + byte at a time. The device is responsible for adding the length + byte on block reads. */ + uint8_t (*read_data)(SMBusDevice *dev, uint8_t cmd, int n); + + /* Remaining fields for internal use only. */ + int mode; + int data_len; + uint8_t data_buf[34]; /* command + len + 32 bytes of data. */ + uint8_t command; +}; + +/* Create a slave device. */ +SMBusDevice *smbus_device_init(i2c_bus *bus, int address, int size); + +/* Master device commands. */ +void smbus_quick_command(i2c_bus *bus, int addr, int read); +uint8_t smbus_receive_byte(i2c_bus *bus, int addr); +void smbus_send_byte(i2c_bus *bus, int addr, uint8_t data); +uint8_t smbus_read_byte(i2c_bus *bus, int addr, uint8_t command); +void smbus_write_byte(i2c_bus *bus, int addr, uint8_t command, uint8_t data); +uint16_t smbus_read_word(i2c_bus *bus, int addr, uint8_t command); +void smbus_write_word(i2c_bus *bus, int addr, uint8_t command, uint16_t data); +int smbus_read_block(i2c_bus *bus, int addr, uint8_t command, uint8_t *data); +void smbus_write_block(i2c_bus *bus, int addr, uint8_t command, uint8_t *data, + int len); + +/* smbus_eeprom.c */ +void smbus_eeprom_device_init(i2c_bus *bus, uint8_t addr, uint8_t *buf);