| /* |
| * (C) Copyright 2002 |
| * Humboldt Solutions Ltd, <adrian@humboldt.co.uk> |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #ifndef _I2C_H |
| #define _I2C_H |
| |
| struct i2c_bus; |
| |
| typedef struct i2c_fn |
| { |
| void (* start)(struct i2c_bus *bus); |
| void (* stop)(struct i2c_bus *bus); |
| int (* master_write)(struct i2c_bus *bus, int target, int address, |
| const uint8_t *data, int length); |
| int (* master_read)(struct i2c_bus *bus, int target, int address, |
| uint8_t *data, int length); |
| } i2c_fn; |
| |
| typedef struct i2c_bus |
| { |
| const i2c_fn *fn; |
| char *tag; |
| void *data; |
| struct i2c_bus *next; |
| } i2c_bus; |
| |
| i2c_bus *find_i2c_bus(const char *name); |
| int register_i2c_bus(const i2c_fn *fn, char *tag, void *data); |
| |
| void i2c_start(struct i2c_bus *bus); |
| void i2c_stop(struct i2c_bus *bus); |
| int i2c_master_write(struct i2c_bus *bus, int target, int address, |
| const uint8_t *data, int length); |
| int i2c_master_read(struct i2c_bus *bus, int target, int address, |
| uint8_t *data, int length); |
| void init_i2c_nvram(const char *i2c_tag); |
| |
| extern i2c_fn mpc107_i2c_fn; |
| |
| #endif |