| 1 | /* ------------------------------------------------------------------------- */ |
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| 2 | /* i2c-algo-ite.h i2c driver algorithms for ITE IIC adapters */ |
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| 3 | /* ------------------------------------------------------------------------- */ |
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| 4 | /* Copyright (C) 1995-97 Simon G. Vogl |
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| 5 | 1998-99 Hans Berglund |
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| 6 | |
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| 7 | This program is free software; you can redistribute it and/or modify |
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| 8 | it under the terms of the GNU General Public License as published by |
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| 9 | the Free Software Foundation; either version 2 of the License, or |
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| 10 | (at your option) any later version. |
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| 11 | |
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| 12 | This program is distributed in the hope that it will be useful, |
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| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | GNU General Public License for more details. |
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| 16 | |
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| 17 | You should have received a copy of the GNU General Public License |
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| 18 | along with this program; if not, write to the Free Software |
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| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
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| 20 | /* ------------------------------------------------------------------------- */ |
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| 21 | |
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| 22 | /* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even |
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| 23 | Frodo Looijaard <frodol@dds.nl> */ |
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| 24 | |
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| 25 | /* Modifications by MontaVista Software, 2001 |
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| 26 | Changes made to support the ITE IIC peripheral */ |
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| 27 | |
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| 28 | |
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| 29 | #ifndef I2C_ALGO_ITE_H |
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| 30 | #define I2C_ALGO_ITE_H 1 |
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| 31 | |
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| 32 | #include <linux/i2c.h> |
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| 33 | |
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| 34 | /* Example of a sequential read request: |
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| 35 | struct i2c_iic_msg s_msg; |
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| 36 | |
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| 37 | s_msg.addr=device_address; |
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| 38 | s_msg.len=length; |
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| 39 | s_msg.buf=buffer; |
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| 40 | s_msg.waddr=word_address; |
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| 41 | ioctl(file,I2C_SREAD, &s_msg); |
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| 42 | */ |
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| 43 | #define I2C_SREAD 0x780 /* SREAD ioctl command */ |
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| 44 | |
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| 45 | struct i2c_iic_msg { |
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| 46 | __u16 addr; /* device address */ |
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| 47 | __u16 waddr; /* word address */ |
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| 48 | short len; /* msg length */ |
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| 49 | char *buf; /* pointer to msg data */ |
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| 50 | }; |
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| 51 | |
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| 52 | struct i2c_algo_iic_data { |
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| 53 | void *data; /* private data for lolevel routines */ |
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| 54 | void (*setiic) (void *data, int ctl, int val); |
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| 55 | int (*getiic) (void *data, int ctl); |
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| 56 | int (*getown) (void *data); |
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| 57 | int (*getclock) (void *data); |
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| 58 | void (*waitforpin) (void); |
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| 59 | |
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| 60 | /* local settings */ |
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| 61 | int udelay; |
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| 62 | int mdelay; |
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| 63 | int timeout; |
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| 64 | }; |
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| 65 | |
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| 66 | int i2c_iic_add_bus(struct i2c_adapter *); |
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| 67 | int i2c_iic_del_bus(struct i2c_adapter *); |
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| 68 | |
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| 69 | #endif /* I2C_ALGO_ITE_H */ |
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