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Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6

Browse source 
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  i2c: Fix OMAP clock prescaler to match the comment
  i2c: Refactor a kfree in i2c-dev
  i2c: Fix return value check in i2c-dev
  i2c: Enable PEC on more i2c-i801 devices
  i2c: Discard the i2c algo del_bus wrappers
  i2c: New ARM Versatile/Realview bus driver
  i2c: fix broken ds1337 initialization
  i2c: i2c-i801 documentation update
  i2c: Use the __ATTR macro where possible
  i2c: Whitespace cleanups
  i2c: Use put_user instead of copy_to_user where possible
  i2c: New Atmel AT91 bus driver
  i2c: Add support for nested i2c bus locking
  i2c: Cleanups to the i2c-nforce2 bus driver
  i2c: Add request/release_mem_region to i2c-ibm_iic bus driver
  i2c: New Philips PNX bus driver
  i2c: Delete the broken i2c-ite bus driver
  i2c: Update the list of driver IDs
  i2c: Fix documentation typos
This commit is contained in:
Linus Torvalds 2006-12-12 09:57:55 -08:00
commit 659dba3480
68 changed files with 1730 additions and 1590 deletions
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5
include/linux/i2c-algo-bit.h
View file

@ -26,9 +26,9 @@
/* --- Defines for bit-adapters --------------------------------------- */
/*
* This struct contains the hw-dependent functions of bit-style adapters to
* This struct contains the hw-dependent functions of bit-style adapters to
* manipulate the line states, and to init any hw-specific features. This is
* only used if you have more than one hw-type of adapter running.
* only used if you have more than one hw-type of adapter running.
*/
struct i2c_algo_bit_data {
void *data; /* private data for lowlevel routines */
@ -44,6 +44,5 @@ struct i2c_algo_bit_data {
};
int i2c_bit_add_bus(struct i2c_adapter *);
int i2c_bit_del_bus(struct i2c_adapter *);
#endif /* _LINUX_I2C_ALGO_BIT_H */

72
include/linux/i2c-algo-ite.h
View file

@ -1,72 +0,0 @@
/* ------------------------------------------------------------------------- */
/* i2c-algo-ite.h i2c driver algorithms for ITE IIC adapters */
/* ------------------------------------------------------------------------- */
/* Copyright (C) 1995-97 Simon G. Vogl
1998-99 Hans Berglund
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* ------------------------------------------------------------------------- */
/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even
Frodo Looijaard <frodol@dds.nl> */
/* Modifications by MontaVista Software, 2001
Changes made to support the ITE IIC peripheral */
#ifndef I2C_ALGO_ITE_H
#define I2C_ALGO_ITE_H 1
#include <linux/types.h>
/* Example of a sequential read request:
struct i2c_iic_msg s_msg;
s_msg.addr=device_address;
s_msg.len=length;
s_msg.buf=buffer;
s_msg.waddr=word_address;
ioctl(file,I2C_SREAD, &s_msg);
*/
#define I2C_SREAD 0x780 /* SREAD ioctl command */
struct i2c_iic_msg {
__u16 addr; /* device address */
__u16 waddr; /* word address */
short len; /* msg length */
char *buf; /* pointer to msg data */
};
#ifdef __KERNEL__
struct i2c_adapter;
struct i2c_algo_iic_data {
void *data; /* private data for lolevel routines */
void (*setiic) (void *data, int ctl, int val);
int (*getiic) (void *data, int ctl);
int (*getown) (void *data);
int (*getclock) (void *data);
void (*waitforpin) (void);
/* local settings */
int udelay;
int mdelay;
int timeout;
};
int i2c_iic_add_bus(struct i2c_adapter *);
int i2c_iic_del_bus(struct i2c_adapter *);
#endif /* __KERNEL__ */
#endif /* I2C_ALGO_ITE_H */

1
include/linux/i2c-algo-pca.h
View file

@ -10,6 +10,5 @@ struct i2c_algo_pca_data {
};
int i2c_pca_add_bus(struct i2c_adapter *);
int i2c_pca_del_bus(struct i2c_adapter *);
#endif /* _LINUX_I2C_ALGO_PCA_H */

3
include/linux/i2c-algo-pcf.h
View file

@ -31,7 +31,7 @@ struct i2c_algo_pcf_data {
int (*getpcf) (void *data, int ctl);
int (*getown) (void *data);
int (*getclock) (void *data);
void (*waitforpin) (void);
void (*waitforpin) (void);
/* local settings */
int udelay;
@ -39,6 +39,5 @@ struct i2c_algo_pcf_data {
};
int i2c_pcf_add_bus(struct i2c_adapter *);
int i2c_pcf_del_bus(struct i2c_adapter *);
#endif /* _LINUX_I2C_ALGO_PCF_H */

1
include/linux/i2c-algo-sgi.h
View file

@ -22,6 +22,5 @@ struct i2c_algo_sgi_data {
};
int i2c_sgi_add_bus(struct i2c_adapter *);
int i2c_sgi_del_bus(struct i2c_adapter *);
#endif /* I2C_ALGO_SGI_H */

17
include/linux/i2c-id.h
View file

@ -1,7 +1,7 @@
/* ------------------------------------------------------------------------- */
/* */
/* */
/* i2c-id.h - identifier values for i2c drivers and adapters */
/* */
/* */
/* ------------------------------------------------------------------------- */
/* Copyright (C) 1995-1999 Simon G. Vogl
@ -40,10 +40,10 @@
#define I2C_DRIVERID_SAA7120 11 /* video encoder */
#define I2C_DRIVERID_SAA7121 12 /* video encoder */
#define I2C_DRIVERID_SAA7185B 13 /* video encoder */
#define I2C_DRIVERID_CH7003 14 /* digital pc to tv encoder */
#define I2C_DRIVERID_CH7003 14 /* digital pc to tv encoder */
#define I2C_DRIVERID_PCF8574A 15 /* i2c expander - 8 bit in/out */
#define I2C_DRIVERID_PCF8582C 16 /* eeprom */
#define I2C_DRIVERID_AT24Cxx 17 /* eeprom 1/2/4/8/16 K */
#define I2C_DRIVERID_AT24Cxx 17 /* eeprom 1/2/4/8/16 K */
#define I2C_DRIVERID_TEA6300 18 /* audio mixer */
#define I2C_DRIVERID_BT829 19 /* pc to tv encoder */
#define I2C_DRIVERID_TDA9850 20 /* audio mixer */
@ -82,9 +82,8 @@
#define I2C_DRIVERID_STM41T00 52 /* real time clock */
#define I2C_DRIVERID_UDA1342 53 /* UDA1342 audio codec */
#define I2C_DRIVERID_ADV7170 54 /* video encoder */
#define I2C_DRIVERID_RADEON 55 /* I2C bus on Radeon boards */
#define I2C_DRIVERID_MAX1617 56 /* temp sensor */
#define I2C_DRIVERID_SAA7191 57 /* video encoder */
#define I2C_DRIVERID_SAA7191 57 /* video decoder */
#define I2C_DRIVERID_INDYCAM 58 /* SGI IndyCam */
#define I2C_DRIVERID_BT832 59 /* CMOS camera video processor */
#define I2C_DRIVERID_TDA9887 60 /* TDA988x IF-PLL demodulator */
@ -132,7 +131,6 @@
#define I2C_DRIVERID_ADM1021 1008
#define I2C_DRIVERID_ADM9240 1009
#define I2C_DRIVERID_LTC1710 1010
#define I2C_DRIVERID_ICSPLL 1012
#define I2C_DRIVERID_BT869 1013
#define I2C_DRIVERID_MAXILIFE 1014
#define I2C_DRIVERID_MATORB 1015
@ -165,7 +163,7 @@
* ---- Adapter types ----------------------------------------------------
*/
/* --- Bit algorithm adapters */
/* --- Bit algorithm adapters */
#define I2C_HW_B_LP 0x010000 /* Parallel port Philips style */
#define I2C_HW_B_SER 0x010002 /* Serial line interface */
#define I2C_HW_B_BT848 0x010005 /* BT848 video boards */
@ -213,9 +211,6 @@
/* --- MPC8xx PowerPC adapters */
#define I2C_HW_MPC8XX_EPON 0x110000 /* Eponymous MPC8xx I2C adapter */
/* --- ITE based algorithms */
#define I2C_HW_I_IIC 0x080000 /* controller on the ITE */
/* --- PowerPC on-chip adapters */
#define I2C_HW_OCP 0x120000 /* IBM on-chip I2C adapter */

43
include/linux/i2c-pnx.h Normal file
View file

@ -0,0 +1,43 @@
/*
* Header file for I2C support on PNX010x/4008.
*
* Author: Dennis Kovalev <dkovalev@ru.mvista.com>
*
* 2004-2006 (c) MontaVista Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
#ifndef __I2C_PNX_H__
#define __I2C_PNX_H__
#include <asm/arch/i2c.h>
struct i2c_pnx_mif {
int ret; /* Return value */
int mode; /* Interface mode */
struct completion complete; /* I/O completion */
struct timer_list timer; /* Timeout */
char * buf; /* Data buffer */
int len; /* Length of data buffer */
};
struct i2c_pnx_algo_data {
u32 base;
u32 ioaddr;
int irq;
struct i2c_pnx_mif mif;
int last;
};
struct i2c_pnx_data {
int (*suspend) (struct platform_device *pdev, pm_message_t state);
int (*resume) (struct platform_device *pdev);
u32 (*calculate_input_freq) (struct platform_device *pdev);
int (*set_clock_run) (struct platform_device *pdev);
int (*set_clock_stop) (struct platform_device *pdev);
struct i2c_adapter *adapter;
};
#endif /* __I2C_PNX_H__ */

75
include/linux/i2c.h
View file

@ -1,7 +1,7 @@
/* ------------------------------------------------------------------------- */
/* */
/* */
/* i2c.h - definitions for the i2c-bus interface */
/* */
/* */
/* ------------------------------------------------------------------------- */
/* Copyright (C) 1995-2000 Simon G. Vogl
@ -27,7 +27,7 @@
#define _LINUX_I2C_H
#include <linux/types.h>
#ifdef __KERNEL__
#ifdef __KERNEL__
#include <linux/module.h>
#include <linux/i2c-id.h>
#include <linux/mod_devicetable.h>
@ -53,8 +53,8 @@ union i2c_smbus_data;
/*
* The master routines are the ones normally used to transmit data to devices
* on a bus (or read from them). Apart from two basic transfer functions to
* transmit one message at a time, a more complex version can be used to
* on a bus (or read from them). Apart from two basic transfer functions to
* transmit one message at a time, a more complex version can be used to
* transmit an arbitrary number of messages without interruption.
*/
extern int i2c_master_send(struct i2c_client *,const char* ,int);
@ -67,10 +67,10 @@ extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
/* This is the very generalized SMBus access routine. You probably do not
want to use this, though; one of the functions below may be much easier,
and probably just as fast.
and probably just as fast.
Note that we use i2c_adapter here, because you do not need a specific
smbus adapter to call this function. */
extern s32 i2c_smbus_xfer (struct i2c_adapter * adapter, u16 addr,
extern s32 i2c_smbus_xfer (struct i2c_adapter * adapter, u16 addr,
unsigned short flags,
char read_write, u8 command, int size,
union i2c_smbus_data * data);
@ -112,14 +112,14 @@ struct i2c_driver {
/* Notifies the driver that a new bus has appeared. This routine
* can be used by the driver to test if the bus meets its conditions
* & seek for the presence of the chip(s) it supports. If found, it
* & seek for the presence of the chip(s) it supports. If found, it
* registers the client(s) that are on the bus to the i2c admin. via
* i2c_attach_client.
*/
int (*attach_adapter)(struct i2c_adapter *);
int (*detach_adapter)(struct i2c_adapter *);
/* tells the driver that a client is about to be deleted & gives it
/* tells the driver that a client is about to be deleted & gives it
* the chance to remove its private data. Also, if the client struct
* has been dynamically allocated by the driver in the function above,
* it must be freed here.
@ -139,13 +139,13 @@ struct i2c_driver {
#define I2C_NAME_SIZE 50
/*
* i2c_client identifies a single device (i.e. chip) that is connected to an
* i2c_client identifies a single device (i.e. chip) that is connected to an
* i2c bus. The behaviour is defined by the routines of the driver. This
* function is mainly used for lookup & other admin. functions.
*/
struct i2c_client {
unsigned int flags; /* div., see below */
unsigned short addr; /* chip address - NOTE: 7bit */
unsigned short addr; /* chip address - NOTE: 7bit */
/* addresses are stored in the */
/* _LOWER_ 7 bits */
struct i2c_adapter *adapter; /* the adapter we sit on */
@ -182,14 +182,14 @@ static inline void i2c_set_clientdata (struct i2c_client *dev, void *data)
*/
struct i2c_algorithm {
/* If an adapter algorithm can't do I2C-level access, set master_xfer
to NULL. If an adapter algorithm can do SMBus access, set
to NULL. If an adapter algorithm can do SMBus access, set
smbus_xfer. If set to NULL, the SMBus protocol is simulated
using common I2C messages */
/* master_xfer should return the number of messages successfully
processed, or a negative value on error */
int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs,
int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs,
int num);
int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr,
int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr,
unsigned short flags, char read_write,
u8 command, int size, union i2c_smbus_data * data);
@ -216,6 +216,7 @@ struct i2c_adapter {
int (*client_unregister)(struct i2c_client *);
/* data fields that are valid for all devices */
u8 level; /* nesting level for lockdep */
struct mutex bus_lock;
struct mutex clist_lock;
@ -316,7 +317,7 @@ extern int i2c_check_addr (struct i2c_adapter *adapter, int addr);
* It will only call found_proc if some client is connected at the
* specific address (unless a 'force' matched);
*/
extern int i2c_probe(struct i2c_adapter *adapter,
extern int i2c_probe(struct i2c_adapter *adapter,
struct i2c_client_address_data *address_data,
int (*found_proc) (struct i2c_adapter *, int, int));
@ -352,15 +353,15 @@ static inline int i2c_adapter_id(struct i2c_adapter *adap)
*/
struct i2c_msg {
__u16 addr; /* slave address */
__u16 flags;
__u16 flags;
#define I2C_M_TEN 0x10 /* we have a ten bit chip address */
#define I2C_M_RD 0x01
#define I2C_M_NOSTART 0x4000
#define I2C_M_REV_DIR_ADDR 0x2000
#define I2C_M_IGNORE_NAK 0x1000
#define I2C_M_NO_RD_ACK 0x0800
__u16 len; /* msg length */
__u8 *buf; /* pointer to msg data */
__u16 len; /* msg length */
__u8 *buf; /* pointer to msg data */
};
/* To determine what functionality is present */
@ -370,16 +371,16 @@ struct i2c_msg {
#define I2C_FUNC_PROTOCOL_MANGLING 0x00000004 /* I2C_M_{REV_DIR_ADDR,NOSTART,..} */
#define I2C_FUNC_SMBUS_HWPEC_CALC 0x00000008 /* SMBus 2.0 */
#define I2C_FUNC_SMBUS_BLOCK_PROC_CALL 0x00008000 /* SMBus 2.0 */
#define I2C_FUNC_SMBUS_QUICK 0x00010000
#define I2C_FUNC_SMBUS_READ_BYTE 0x00020000
#define I2C_FUNC_SMBUS_WRITE_BYTE 0x00040000
#define I2C_FUNC_SMBUS_READ_BYTE_DATA 0x00080000
#define I2C_FUNC_SMBUS_WRITE_BYTE_DATA 0x00100000
#define I2C_FUNC_SMBUS_READ_WORD_DATA 0x00200000
#define I2C_FUNC_SMBUS_WRITE_WORD_DATA 0x00400000
#define I2C_FUNC_SMBUS_PROC_CALL 0x00800000
#define I2C_FUNC_SMBUS_READ_BLOCK_DATA 0x01000000
#define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000
#define I2C_FUNC_SMBUS_QUICK 0x00010000
#define I2C_FUNC_SMBUS_READ_BYTE 0x00020000
#define I2C_FUNC_SMBUS_WRITE_BYTE 0x00040000
#define I2C_FUNC_SMBUS_READ_BYTE_DATA 0x00080000
#define I2C_FUNC_SMBUS_WRITE_BYTE_DATA 0x00100000
#define I2C_FUNC_SMBUS_READ_WORD_DATA 0x00200000
#define I2C_FUNC_SMBUS_WRITE_WORD_DATA 0x00400000
#define I2C_FUNC_SMBUS_PROC_CALL 0x00800000
#define I2C_FUNC_SMBUS_READ_BLOCK_DATA 0x01000000
#define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000
#define I2C_FUNC_SMBUS_READ_I2C_BLOCK 0x04000000 /* I2C-like block xfer */
#define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK 0x08000000 /* w/ 1-byte reg. addr. */
#define I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 0x10000000 /* I2C-like block xfer */
@ -406,10 +407,10 @@ struct i2c_msg {
I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \
I2C_FUNC_SMBUS_I2C_BLOCK)
/*
* Data for SMBus Messages
/*
* Data for SMBus Messages
*/
#define I2C_SMBUS_BLOCK_MAX 32 /* As specified in SMBus standard */
#define I2C_SMBUS_BLOCK_MAX 32 /* As specified in SMBus standard */
union i2c_smbus_data {
__u8 byte;
__u16 word;
@ -421,11 +422,11 @@ union i2c_smbus_data {
#define I2C_SMBUS_READ 1
#define I2C_SMBUS_WRITE 0
/* SMBus transaction types (size parameter in the above functions)
/* SMBus transaction types (size parameter in the above functions)
Note: these no longer correspond to the (arbitrary) PIIX4 internal codes! */
#define I2C_SMBUS_QUICK 0
#define I2C_SMBUS_BYTE 1
#define I2C_SMBUS_BYTE_DATA 2
#define I2C_SMBUS_BYTE_DATA 2
#define I2C_SMBUS_WORD_DATA 3
#define I2C_SMBUS_PROC_CALL 4
#define I2C_SMBUS_BLOCK_DATA 5
@ -434,15 +435,15 @@ union i2c_smbus_data {
/* ----- commands for the ioctl like i2c_command call:
* note that additional calls are defined in the algorithm and hw
* dependent layers - these can be listed here, or see the
* note that additional calls are defined in the algorithm and hw
* dependent layers - these can be listed here, or see the
* corresponding header files.
*/
/* -> bit-adapter specific ioctls */
#define I2C_RETRIES 0x0701 /* number of times a device address */
/* should be polled when not */
/* acknowledging */
#define I2C_TIMEOUT 0x0702 /* set timeout - call with int */
/* acknowledging */
#define I2C_TIMEOUT 0x0702 /* set timeout - call with int */
/* this is for i2c-dev.c */