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Diffstat (limited to 'oncology/dpfhack_display/lcd4linux/.svn/text-base/lcd4linux_i2c.h.svn-base')
| -rw-r--r-- | oncology/dpfhack_display/lcd4linux/.svn/text-base/lcd4linux_i2c.h.svn-base | 610 |
1 files changed, 0 insertions, 610 deletions
diff --git a/oncology/dpfhack_display/lcd4linux/.svn/text-base/lcd4linux_i2c.h.svn-base b/oncology/dpfhack_display/lcd4linux/.svn/text-base/lcd4linux_i2c.h.svn-base deleted file mode 100644 index 1a0fce88..00000000 --- a/oncology/dpfhack_display/lcd4linux/.svn/text-base/lcd4linux_i2c.h.svn-base +++ /dev/null @@ -1,610 +0,0 @@ -/* $Id$ - * $URL$ - * - * user space i2c sturctures and defines, taken from the official kernel i2c - * includes to solve the problem when compiling user space application - * (lcd4linux) with kernel space includes. - * Should be removed when the kernel team decides on how to solve this - * user space/kernel space compilation problem in kernel 2.8 or so. - * - * Copyright (C) 2005 Paul Kamphuis <pk_richman@users.sourceforge.net> - * Copyright (C) 2005 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> - * - * taken from kernel includes i2c.h and i2c-dev.h to prevent using kernel includes - * Copyright (C) 1995-2000 Simon G. Vogl - * With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and - * Frodo Looijaard <frodol@dds.nl> - * - * This file is part of LCD4Linux. - * - * LCD4Linux 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, or (at your option) - * any later version. - * - * LCD4Linux 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. - * - */ - -#ifndef _LCD4LINUX_I2C_H -#define _LCD4LINUX_I2C_H - -typedef signed int s32; -typedef signed int __s32; -typedef unsigned char u8; -typedef unsigned short u16; -typedef unsigned char __u8; -typedef unsigned short __u16; -typedef unsigned int u32; -typedef unsigned int __u32; - -/* --- General options ------------------------------------------------ */ - -struct i2c_msg; -struct i2c_algorithm; -struct i2c_adapter; -struct i2c_client; -struct i2c_driver; -struct i2c_client_address_data; -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 - * transmit an arbitrary number of messages without interruption. - */ -extern int i2c_master_send(struct i2c_client *, const char *, int); -extern int i2c_master_recv(struct i2c_client *, char *, int); - -/* Transfer num messages. - */ -extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msg, int num); - -/* - * Some adapter types (i.e. PCF 8584 based ones) may support slave behaviuor. - * This is not tested/implemented yet and will change in the future. - */ -extern int i2c_slave_send(struct i2c_client *, char *, int); -extern int i2c_slave_recv(struct i2c_client *, char *, int); - - - -/* 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. - 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, - unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data *data); - -/* Now follow the 'nice' access routines. These also document the calling - conventions of smbus_access. */ -/* -extern s32 i2c_smbus_write_quick(struct i2c_client * client, u8 value); -extern s32 i2c_smbus_read_byte(struct i2c_client * client); -extern s32 i2c_smbus_write_byte(struct i2c_client * client, u8 value); -extern s32 i2c_smbus_read_byte_data(struct i2c_client * client, u8 command); -extern s32 i2c_smbus_write_byte_data(struct i2c_client * client, - u8 command, u8 value); -extern s32 i2c_smbus_read_word_data(struct i2c_client * client, u8 command); -extern s32 i2c_smbus_write_word_data(struct i2c_client * client, - u8 command, u16 value); -*/ -/* Returns the number of bytes transferred */ -/* -extern s32 i2c_smbus_write_block_data(struct i2c_client * client, - u8 command, u8 length, - u8 *values); -extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client, - u8 command, u8 *values); -*/ - -/* - * A driver is capable of handling one or more physical devices present on - * I2C adapters. This information is used to inform the driver of adapter - * events. - */ - -/*flags for the driver struct: */ -#define I2C_DF_NOTIFY 0x01 /* notify on bus (de/a)ttaches */ - -/*flags for the client struct: */ -#define I2C_CLIENT_ALLOW_USE 0x01 /* Client allows access */ -#define I2C_CLIENT_ALLOW_MULTIPLE_USE 0x02 /* Allow multiple access-locks */ - /* on an i2c_client */ -#define I2C_CLIENT_PEC 0x04 /* Use Packet Error Checking */ -#define I2C_CLIENT_TEN 0x10 /* we have a ten bit chip address */ - /* Must equal I2C_M_TEN below */ - -/* i2c adapter classes (bitmask) */ -#define I2C_CLASS_HWMON (1<<0) /* lm_sensors, ... */ -#define I2C_CLASS_TV_ANALOG (1<<1) /* bttv + friends */ -#define I2C_CLASS_TV_DIGITAL (1<<2) /* dvb cards */ -#define I2C_CLASS_DDC (1<<3) /* i2c-matroxfb ? */ -#define I2C_CLASS_CAM_ANALOG (1<<4) /* camera with analog CCD */ -#define I2C_CLASS_CAM_DIGITAL (1<<5) /* most webcams */ -#define I2C_CLASS_SOUND (1<<6) /* sound devices */ -#define I2C_CLASS_ALL (UINT_MAX) /* all of the above */ - -/* i2c_client_address_data is the struct for holding default client - * addresses for a driver and for the parameters supplied on the - * command line - */ -struct i2c_client_address_data { - unsigned short *normal_i2c; - unsigned short *normal_i2c_range; - unsigned short *probe; - unsigned short *probe_range; - unsigned short *ignore; - unsigned short *ignore_range; - unsigned short *force; -}; - -/* Internal numbers to terminate lists */ -#define I2C_CLIENT_END 0xfffe -#define I2C_CLIENT_ISA_END 0xfffefffe - -/* The numbers to use to set I2C bus address */ -#define ANY_I2C_BUS 0xffff -#define ANY_I2C_ISA_BUS 9191 - -/* The length of the option lists */ -#define I2C_CLIENT_MAX_OPTS 48 - - -/* ----- functions exported by i2c.o */ - -/* administration... - */ -extern int i2c_add_adapter(struct i2c_adapter *); -extern int i2c_del_adapter(struct i2c_adapter *); - -extern int i2c_add_driver(struct i2c_driver *); -extern int i2c_del_driver(struct i2c_driver *); - -extern int i2c_attach_client(struct i2c_client *); -extern int i2c_detach_client(struct i2c_client *); - -/* New function: This is to get an i2c_client-struct for controlling the - client either by using i2c_control-function or having the - client-module export functions that can be used with the i2c_client - -struct. */ -extern struct i2c_client *i2c_get_client(int driver_id, int adapter_id, struct i2c_client *prev); - -/* Should be used with new function - extern struct i2c_client *i2c_get_client(int,int,struct i2c_client *); - to make sure that client-struct is valid and that it is okay to access - the i2c-client. - returns -EACCES if client doesn't allow use (default) - returns -EBUSY if client doesn't allow multiple use (default) and - usage_count >0 */ -extern int i2c_use_client(struct i2c_client *); -extern int i2c_release_client(struct i2c_client *); - -/* call the i2c_client->command() of all attached clients with - * the given arguments */ -extern void i2c_clients_command(struct i2c_adapter *adap, unsigned int cmd, void *arg); - -/* returns -EBUSY if address has been taken, 0 if not. Note that the only - other place at which this is called is within i2c_attach_client; so - you can cheat by simply not registering. Not recommended, of course! */ -extern int i2c_check_addr(struct i2c_adapter *adapter, int addr); - -/* Detect function. It iterates over all possible addresses itself. - * 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, struct i2c_client_address_data *address_data, - int (*found_proc) (struct i2c_adapter *, int, int)); - -/* An ioctl like call to set div. parameters of the adapter. - */ -extern int i2c_control(struct i2c_client *, unsigned int, unsigned long); - -/* This call returns a unique low identifier for each registered adapter, - * or -1 if the adapter was not registered. - */ -extern int i2c_adapter_id(struct i2c_adapter *adap); -extern struct i2c_adapter *i2c_get_adapter(int id); -extern void i2c_put_adapter(struct i2c_adapter *adap); - - -/* Return the functionality mask */ -extern u32 i2c_get_functionality(struct i2c_adapter *adap); - -/* Return 1 if adapter supports everything we need, 0 if not. */ -extern int i2c_check_functionality(struct i2c_adapter *adap, u32 func); - -/* - * I2C Message - used for pure i2c transaction, also from /dev interface - */ -struct i2c_msg { - __u16 addr; /* slave address */ - __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 */ -}; - -/* To determine what functionality is present */ - -#define I2C_FUNC_I2C 0x00000001 -#define I2C_FUNC_10BIT_ADDR 0x00000002 -#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_READ_WORD_DATA_PEC 0x00000800 /* SMBus 2.0 */ -#define I2C_FUNC_SMBUS_WRITE_WORD_DATA_PEC 0x00001000 /* SMBus 2.0 */ -#define I2C_FUNC_SMBUS_PROC_CALL_PEC 0x00002000 /* SMBus 2.0 */ -#define I2C_FUNC_SMBUS_BLOCK_PROC_CALL_PEC 0x00004000 /* 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_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 */ -#define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2 0x20000000 /* w/ 2-byte reg. addr. */ -#define I2C_FUNC_SMBUS_READ_BLOCK_DATA_PEC 0x40000000 /* SMBus 2.0 */ -#define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA_PEC 0x80000000 /* SMBus 2.0 */ - -#define I2C_FUNC_SMBUS_BYTE I2C_FUNC_SMBUS_READ_BYTE | \ - I2C_FUNC_SMBUS_WRITE_BYTE -#define I2C_FUNC_SMBUS_BYTE_DATA I2C_FUNC_SMBUS_READ_BYTE_DATA | \ - I2C_FUNC_SMBUS_WRITE_BYTE_DATA -#define I2C_FUNC_SMBUS_WORD_DATA I2C_FUNC_SMBUS_READ_WORD_DATA | \ - I2C_FUNC_SMBUS_WRITE_WORD_DATA -#define I2C_FUNC_SMBUS_BLOCK_DATA I2C_FUNC_SMBUS_READ_BLOCK_DATA | \ - I2C_FUNC_SMBUS_WRITE_BLOCK_DATA -#define I2C_FUNC_SMBUS_I2C_BLOCK I2C_FUNC_SMBUS_READ_I2C_BLOCK | \ - I2C_FUNC_SMBUS_WRITE_I2C_BLOCK -#define I2C_FUNC_SMBUS_I2C_BLOCK_2 I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 | \ - I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2 -#define I2C_FUNC_SMBUS_BLOCK_DATA_PEC I2C_FUNC_SMBUS_READ_BLOCK_DATA_PEC | \ - I2C_FUNC_SMBUS_WRITE_BLOCK_DATA_PEC -#define I2C_FUNC_SMBUS_WORD_DATA_PEC I2C_FUNC_SMBUS_READ_WORD_DATA_PEC | \ - I2C_FUNC_SMBUS_WRITE_WORD_DATA_PEC - -#define I2C_FUNC_SMBUS_READ_BYTE_PEC I2C_FUNC_SMBUS_READ_BYTE_DATA -#define I2C_FUNC_SMBUS_WRITE_BYTE_PEC I2C_FUNC_SMBUS_WRITE_BYTE_DATA -#define I2C_FUNC_SMBUS_READ_BYTE_DATA_PEC I2C_FUNC_SMBUS_READ_WORD_DATA -#define I2C_FUNC_SMBUS_WRITE_BYTE_DATA_PEC I2C_FUNC_SMBUS_WRITE_WORD_DATA -#define I2C_FUNC_SMBUS_BYTE_PEC I2C_FUNC_SMBUS_BYTE_DATA -#define I2C_FUNC_SMBUS_BYTE_DATA_PEC I2C_FUNC_SMBUS_WORD_DATA - -#define I2C_FUNC_SMBUS_EMUL I2C_FUNC_SMBUS_QUICK | \ - I2C_FUNC_SMBUS_BYTE | \ - I2C_FUNC_SMBUS_BYTE_DATA | \ - I2C_FUNC_SMBUS_WORD_DATA | \ - I2C_FUNC_SMBUS_PROC_CALL | \ - I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \ - I2C_FUNC_SMBUS_WRITE_BLOCK_DATA_PEC | \ - I2C_FUNC_SMBUS_I2C_BLOCK - -/* - * Data for SMBus Messages - */ -#define I2C_SMBUS_BLOCK_MAX 32 /* As specified in SMBus standard */ -#define I2C_SMBUS_I2C_BLOCK_MAX 32 /* Not specified but we use same structure */ -union i2c_smbus_data { - __u8 byte; - __u16 word; - __u8 block[I2C_SMBUS_BLOCK_MAX + 3]; /* block[0] is used for length */ - /* one more for read length in block process call */ - /* and one more for PEC */ -}; - -/* smbus_access read or write markers */ -#define I2C_SMBUS_READ 1 -#define I2C_SMBUS_WRITE 0 - -/* 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_WORD_DATA 3 -#define I2C_SMBUS_PROC_CALL 4 -#define I2C_SMBUS_BLOCK_DATA 5 -#define I2C_SMBUS_I2C_BLOCK_DATA 6 -#define I2C_SMBUS_BLOCK_PROC_CALL 7 /* SMBus 2.0 */ -#define I2C_SMBUS_BLOCK_DATA_PEC 8 /* SMBus 2.0 */ -#define I2C_SMBUS_PROC_CALL_PEC 9 /* SMBus 2.0 */ -#define I2C_SMBUS_BLOCK_PROC_CALL_PEC 10 /* SMBus 2.0 */ -#define I2C_SMBUS_WORD_DATA_PEC 11 /* SMBus 2.0 */ - - -/* ----- 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 - * 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 */ - - -/* this is for i2c-dev.c */ -#define I2C_SLAVE 0x0703 /* Change slave address */ - /* Attn.: Slave address is 7 or 10 bits */ -#define I2C_SLAVE_FORCE 0x0706 /* Change slave address */ - /* Attn.: Slave address is 7 or 10 bits */ - /* This changes the address, even if it */ - /* is already taken! */ -#define I2C_TENBIT 0x0704 /* 0 for 7 bit addrs, != 0 for 10 bit */ - -#define I2C_FUNCS 0x0705 /* Get the adapter functionality */ -#define I2C_RDWR 0x0707 /* Combined R/W transfer (one stop only) */ -#define I2C_PEC 0x0708 /* != 0 for SMBus PEC */ -#if 0 -#define I2C_ACK_TEST 0x0710 /* See if a slave is at a specific address */ -#endif - -#define I2C_SMBUS 0x0720 /* SMBus-level access */ - -/* ... algo-bit.c recognizes */ -#define I2C_UDELAY 0x0705 /* set delay in microsecs between each */ - /* written byte (except address) */ -#define I2C_MDELAY 0x0706 /* millisec delay between written bytes */ - -/* ----- I2C-DEV: char device interface stuff ------------------------- */ - -#define I2C_MAJOR 89 /* Device major number */ - -/* These defines are used for probing i2c client addresses */ -/* Default fill of many variables */ -#define I2C_CLIENT_DEFAULTS {I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END} - -/* This is ugly. We need to evaluate I2C_CLIENT_MAX_OPTS before it is - stringified */ -#define I2C_CLIENT_MODPARM_AUX1(x) "1-" #x "h" -#define I2C_CLIENT_MODPARM_AUX(x) I2C_CLIENT_MODPARM_AUX1(x) -#define I2C_CLIENT_MODPARM I2C_CLIENT_MODPARM_AUX(I2C_CLIENT_MAX_OPTS) - -/* I2C_CLIENT_MODULE_PARM creates a module parameter, and puts it in the - module header */ - -#define I2C_CLIENT_MODULE_PARM(var,desc) \ - static unsigned short var[I2C_CLIENT_MAX_OPTS] = I2C_CLIENT_DEFAULTS; \ - static unsigned int var##_num; \ - /*MODULE_PARM(var,I2C_CLIENT_MODPARM);*/ \ - module_param_array(var, short, &var##_num, 0); \ - MODULE_PARM_DESC(var,desc) - -/* This is the one you want to use in your own modules */ -#define I2C_CLIENT_INSMOD \ - I2C_CLIENT_MODULE_PARM(probe, \ - "List of adapter,address pairs to scan additionally"); \ - I2C_CLIENT_MODULE_PARM(probe_range, \ - "List of adapter,start-addr,end-addr triples to scan " \ - "additionally"); \ - I2C_CLIENT_MODULE_PARM(ignore, \ - "List of adapter,address pairs not to scan"); \ - I2C_CLIENT_MODULE_PARM(ignore_range, \ - "List of adapter,start-addr,end-addr triples not to " \ - "scan"); \ - I2C_CLIENT_MODULE_PARM(force, \ - "List of adapter,address pairs to boldly assume " \ - "to be present"); \ - static struct i2c_client_address_data addr_data = { \ - .normal_i2c = normal_i2c, \ - .normal_i2c_range = normal_i2c_range, \ - .probe = probe, \ - .probe_range = probe_range, \ - .ignore = ignore, \ - .ignore_range = ignore_range, \ - .force = force, \ - } - -/* Detect whether we are on the isa bus. If this returns true, all i2c - access will fail! */ -#define i2c_is_isa_client(clientptr) \ - ((clientptr)->adapter->algo->id == I2C_ALGO_ISA) -#define i2c_is_isa_adapter(adapptr) \ - ((adapptr)->algo->id == I2C_ALGO_ISA) - - -/* Some IOCTL commands are defined in <linux/i2c.h> */ -/* Note: 10-bit addresses are NOT supported! */ - -/* This is the structure as used in the I2C_SMBUS ioctl call */ -struct i2c_smbus_ioctl_data { - __u8 read_write; - __u8 command; - __u32 size; - union i2c_smbus_data *data; -}; - -/* This is the structure as used in the I2C_RDWR ioctl call */ -struct i2c_rdwr_ioctl_data { - struct i2c_msg *msgs; /* pointers to i2c_msgs */ - __u32 nmsgs; /* number of i2c_msgs */ -}; - -#define I2C_RDRW_IOCTL_MAX_MSGS 42 - -#include <sys/ioctl.h> - -static inline __s32 i2c_smbus_access(int file, char read_write, __u8 command, int size, union i2c_smbus_data *data) -{ - struct i2c_smbus_ioctl_data args; - - args.read_write = read_write; - args.command = command; - args.size = size; - args.data = data; - return ioctl(file, I2C_SMBUS, &args); -} - - -static inline __s32 i2c_smbus_write_quick(int file, __u8 value) -{ - return i2c_smbus_access(file, value, 0, I2C_SMBUS_QUICK, NULL); -} - -static inline __s32 i2c_smbus_read_byte(int file) -{ - union i2c_smbus_data data; - if (i2c_smbus_access(file, I2C_SMBUS_READ, 0, I2C_SMBUS_BYTE, &data)) - return -1; - else - return 0x0FF & data.byte; -} - -static inline __s32 i2c_smbus_write_byte(int file, __u8 value) -{ - return i2c_smbus_access(file, I2C_SMBUS_WRITE, value, I2C_SMBUS_BYTE, NULL); -} - -static inline __s32 i2c_smbus_read_byte_data(int file, __u8 command) -{ - union i2c_smbus_data data; - if (i2c_smbus_access(file, I2C_SMBUS_READ, command, I2C_SMBUS_BYTE_DATA, &data)) - return -1; - else - return 0x0FF & data.byte; -} - -static inline __s32 i2c_smbus_write_byte_data(int file, __u8 command, __u8 value) -{ - union i2c_smbus_data data; - data.byte = value; - return i2c_smbus_access(file, I2C_SMBUS_WRITE, command, I2C_SMBUS_BYTE_DATA, &data); -} - -static inline __s32 i2c_smbus_read_word_data(int file, __u8 command) -{ - union i2c_smbus_data data; - if (i2c_smbus_access(file, I2C_SMBUS_READ, command, I2C_SMBUS_WORD_DATA, &data)) - return -1; - else - return 0x0FFFF & data.word; -} - -static inline __s32 i2c_smbus_write_word_data(int file, __u8 command, __u16 value) -{ - union i2c_smbus_data data; - data.word = value; - return i2c_smbus_access(file, I2C_SMBUS_WRITE, command, I2C_SMBUS_WORD_DATA, &data); -} - -static inline __s32 i2c_smbus_process_call(int file, __u8 command, __u16 value) -{ - union i2c_smbus_data data; - data.word = value; - if (i2c_smbus_access(file, I2C_SMBUS_WRITE, command, I2C_SMBUS_PROC_CALL, &data)) - return -1; - else - return 0x0FFFF & data.word; -} - - -/* Returns the number of read bytes */ -static inline __s32 i2c_smbus_read_block_data(int file, __u8 command, __u8 * values) -{ - union i2c_smbus_data data; - int i; - if (i2c_smbus_access(file, I2C_SMBUS_READ, command, I2C_SMBUS_BLOCK_DATA, &data)) - return -1; - else { - for (i = 1; i <= data.block[0]; i++) - values[i - 1] = data.block[i]; - return data.block[0]; - } -} - -static inline __s32 i2c_smbus_write_block_data(int file, __u8 command, __u8 length, __u8 * values) -{ - union i2c_smbus_data data; - int i; - if (length > 32) - length = 32; - for (i = 1; i <= length; i++) - data.block[i] = values[i - 1]; - data.block[0] = length; - return i2c_smbus_access(file, I2C_SMBUS_WRITE, command, I2C_SMBUS_BLOCK_DATA, &data); -} - -/* Returns the number of read bytes */ -static inline __s32 i2c_smbus_read_i2c_block_data(int file, __u8 command, __u8 * values) -{ - union i2c_smbus_data data; - int i; - if (i2c_smbus_access(file, I2C_SMBUS_READ, command, I2C_SMBUS_I2C_BLOCK_DATA, &data)) - return -1; - else { - for (i = 1; i <= data.block[0]; i++) - values[i - 1] = data.block[i]; - return data.block[0]; - } -} - -static inline __s32 i2c_smbus_write_i2c_block_data(int file, __u8 command, __u8 length, __u8 * values) -{ - union i2c_smbus_data data; - int i; - if (length > 32) - length = 32; - for (i = 1; i <= length; i++) - data.block[i] = values[i - 1]; - data.block[0] = length; - return i2c_smbus_access(file, I2C_SMBUS_WRITE, command, I2C_SMBUS_I2C_BLOCK_DATA, &data); -} - -/* Returns the number of read bytes */ -static inline __s32 i2c_smbus_block_process_call(int file, __u8 command, __u8 length, __u8 * values) -{ - union i2c_smbus_data data; - int i; - if (length > 32) - length = 32; - for (i = 1; i <= length; i++) - data.block[i] = values[i - 1]; - data.block[0] = length; - if (i2c_smbus_access(file, I2C_SMBUS_WRITE, command, I2C_SMBUS_BLOCK_PROC_CALL, &data)) - return -1; - else { - for (i = 1; i <= data.block[0]; i++) - values[i - 1] = data.block[i]; - return data.block[0]; - } -} - - -#endif /* _LCD4LINUX_I2C_H */ |