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i2c-tools
i2c-tools-r6048-Move-SMBus-helper-functions.patch
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File i2c-tools-r6048-Move-SMBus-helper-functions.patch of Package i2c-tools
From 3ceb5a7870cb236981b7c3b5c5b9665dcb1ebe27 Mon Sep 17 00:00:00 2001 From: Jean Delvare <khali@linux-fr.org> Date: Thu, 26 Apr 2012 10:10:22 +0000 Subject: [PATCH] i2c-dev: Move SMBus helper functions to include/i2c/smbus.h git-svn-id: http://lm-sensors.org/svn/i2c-tools/trunk@6048 7894878c-1315-0410-8ee3-d5d059ff63e0 --- eepromer/24cXX.c | 3 + eepromer/24cXX.h | 2 +- eepromer/eeprom.c | 2 + eepromer/eepromer.c | 2 + include/Module.mk | 6 +- include/linux/i2c-dev.h | 257 ------------------------------------------------ py-smbus/Module.mk | 2 +- py-smbus/smbusmodule.c | 3 + tools/Module.mk | 12 +-- tools/i2cbusses.c | 4 +- tools/i2cdetect.c | 5 +- tools/i2cdump.c | 5 +- tools/i2cget.c | 5 +- tools/i2cset.c | 5 +- 15 files changed, 41 insertions(+), 273 deletions(-) diff --git a/include/Module.mk b/include/Module.mk index fda7cfb..4a9713c 100644 --- a/include/Module.mk +++ b/include/Module.mk @@ -9,14 +9,14 @@ INCLUDE_DIR := include -INCLUDE_TARGETS := linux/i2c-dev.h +INCLUDE_TARGETS := i2c/smbus.h # # Commands # install-include: $(addprefix $(INCLUDE_DIR)/,$(INCLUDE_TARGETS)) - $(INSTALL_DIR) $(DESTDIR)$(incdir)/linux + $(INSTALL_DIR) $(DESTDIR)$(incdir)/i2c for file in $(INCLUDE_TARGETS) ; do \ $(INSTALL_DATA) $(INCLUDE_DIR)/$$file $(DESTDIR)$(incdir)/$$file ; done diff --git a/include/linux/i2c-dev.h b/include/linux/i2c-dev.h index 23f7c2c..64166c6 100644 --- a/include/linux/i2c-dev.h +++ b/include/linux/i2c-dev.h @@ -24,91 +24,9 @@ #define _LINUX_I2C_DEV_H #include <linux/types.h> -#include <sys/ioctl.h> #include <stddef.h> -/* -- i2c.h -- */ - - -/* - * I2C Message - used for pure i2c transaction, also from /dev interface - */ -struct i2c_msg { - __u16 addr; /* slave address */ - unsigned short 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 - short len; /* msg length */ - char *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_PEC 0x00000008 -#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_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) - -/* Old name, for compatibility */ -#define I2C_FUNC_SMBUS_HWPEC_CALC I2C_FUNC_SMBUS_PEC - -/* - * 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 + 2]; /* block[0] is used for length */ - /* 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_BROKEN 6 -#define I2C_SMBUS_BLOCK_PROC_CALL 7 /* SMBus 2.0 */ -#define I2C_SMBUS_I2C_BLOCK_DATA 8 - /* /dev/i2c-X ioctl commands. The ioctl's parameter is always an * unsigned long, except for: @@ -153,178 +71,4 @@ struct i2c_rdwr_ioctl_data { #define I2C_RDRW_IOCTL_MAX_MSGS 42 -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, const __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 */ -/* Until kernel 2.6.22, the length is hardcoded to 32 bytes. If you - ask for less than 32 bytes, your code will only work with kernels - 2.6.23 and later. */ -static inline __s32 i2c_smbus_read_i2c_block_data(int file, __u8 command, - __u8 length, __u8 *values) -{ - union i2c_smbus_data data; - int i; - - if (length > 32) - length = 32; - data.block[0] = length; - if (i2c_smbus_access(file,I2C_SMBUS_READ,command, - length == 32 ? I2C_SMBUS_I2C_BLOCK_BROKEN : - 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, - const __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_BROKEN, &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 /* _LINUX_I2C_DEV_H */ diff --git a/py-smbus/Module.mk b/py-smbus/Module.mk index 138a789..fc2b201 100644 --- a/py-smbus/Module.mk +++ b/py-smbus/Module.mk @@ -14,7 +14,7 @@ DISTUTILS := \ cd $(PY_SMBUS_DIR) && \ CPPFLAGS="$(CPPFLAGS) -I../include" $(PYTHON) setup.py -all-python: $(INCLUDE_DIR)/linux/i2c-dev.h +all-python: $(INCLUDE_DIR)/i2c/smbus.h $(DISTUTILS) build clean-python: diff --git a/py-smbus/smbusmodule.c b/py-smbus/smbusmodule.c index 86e8e13..d360a36 100644 --- a/py-smbus/smbusmodule.c +++ b/py-smbus/smbusmodule.c @@ -22,7 +22,9 @@ #include <stdlib.h> #include <stdio.h> #include <fcntl.h> +#include <linux/i2c.h> #include <linux/i2c-dev.h> +#include <i2c/smbus.h> /* ** These are required to build this module against Linux older than 2.6.23. diff --git a/tools/Module.mk b/tools/Module.mk index 8ad8fc0..33ae774 100644 --- a/tools/Module.mk +++ b/tools/Module.mk @@ -1,6 +1,6 @@ # I2C tools for Linux # -# Copyright (C) 2007 Jean Delvare <jdelvare@suse.de> +# Copyright (C) 2007, 2012 Jean Delvare <khali@linux-fr.org> # # 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 @@ -35,19 +35,19 @@ $(TOOLS_DIR)/i2cget: $(TOOLS_DIR)/i2cget.o $(TOOLS_DIR)/i2cbusses.o $(TOOLS_DIR) # Objects # -$(TOOLS_DIR)/i2cdetect.o: $(TOOLS_DIR)/i2cdetect.c $(TOOLS_DIR)/i2cbusses.h version.h $(INCLUDE_DIR)/linux/i2c-dev.h +$(TOOLS_DIR)/i2cdetect.o: $(TOOLS_DIR)/i2cdetect.c $(TOOLS_DIR)/i2cbusses.h $(INCLUDE_DIR)/i2c/smbus.h $(CC) $(CFLAGS) $(TOOLS_CFLAGS) -c $< -o $@ -$(TOOLS_DIR)/i2cdump.o: $(TOOLS_DIR)/i2cdump.c $(TOOLS_DIR)/i2cbusses.h $(TOOLS_DIR)/util.h version.h $(INCLUDE_DIR)/linux/i2c-dev.h +$(TOOLS_DIR)/i2cdump.o: $(TOOLS_DIR)/i2cdump.c $(TOOLS_DIR)/i2cbusses.h $(TOOLS_DIR)/util.h $(INCLUDE_DIR)/i2c/smbus.h $(CC) $(CFLAGS) $(TOOLS_CFLAGS) -c $< -o $@ -$(TOOLS_DIR)/i2cset.o: $(TOOLS_DIR)/i2cset.c $(TOOLS_DIR)/i2cbusses.h $(TOOLS_DIR)/util.h version.h $(INCLUDE_DIR)/linux/i2c-dev.h +$(TOOLS_DIR)/i2cset.o: $(TOOLS_DIR)/i2cset.c $(TOOLS_DIR)/i2cbusses.h $(TOOLS_DIR)/util.h $(INCLUDE_DIR)/i2c/smbus.h $(CC) $(CFLAGS) $(TOOLS_CFLAGS) -c $< -o $@ -$(TOOLS_DIR)/i2cget.o: $(TOOLS_DIR)/i2cget.c $(TOOLS_DIR)/i2cbusses.h $(TOOLS_DIR)/util.h version.h $(INCLUDE_DIR)/linux/i2c-dev.h +$(TOOLS_DIR)/i2cget.o: $(TOOLS_DIR)/i2cget.c $(TOOLS_DIR)/i2cbusses.h $(TOOLS_DIR)/util.h $(INCLUDE_DIR)/i2c/smbus.h $(CC) $(CFLAGS) $(TOOLS_CFLAGS) -c $< -o $@ -$(TOOLS_DIR)/i2cbusses.o: $(TOOLS_DIR)/i2cbusses.c $(TOOLS_DIR)/i2cbusses.h $(INCLUDE_DIR)/linux/i2c-dev.h +$(TOOLS_DIR)/i2cbusses.o: $(TOOLS_DIR)/i2cbusses.c $(TOOLS_DIR)/i2cbusses.h $(CC) $(CFLAGS) $(TOOLS_CFLAGS) -c $< -o $@ $(TOOLS_DIR)/util.o: $(TOOLS_DIR)/util.c $(TOOLS_DIR)/util.h diff --git a/tools/i2cbusses.c b/tools/i2cbusses.c index 7a1b7cb..b3093aa 100644 --- a/tools/i2cbusses.c +++ b/tools/i2cbusses.c @@ -39,6 +39,7 @@ #include <fcntl.h> #include <errno.h> #include "i2cbusses.h" +#include <linux/i2c.h> #include <linux/i2c-dev.h> enum adt { adt_dummy, adt_isa, adt_i2c, adt_smbus, adt_unknown }; diff --git a/tools/i2cdetect.c b/tools/i2cdetect.c index 07b3d97..675a150 100644 --- a/tools/i2cdetect.c +++ b/tools/i2cdetect.c @@ -26,7 +26,9 @@ #include <stdio.h> #include <stdlib.h> #include <unistd.h> +#include <linux/i2c.h> #include <linux/i2c-dev.h> +#include <i2c/smbus.h> #include "i2cbusses.h" #include "../version.h" diff --git a/tools/i2cdump.c b/tools/i2cdump.c index 2fc98fd..a7bba72 100644 --- a/tools/i2cdump.c +++ b/tools/i2cdump.c @@ -26,7 +26,9 @@ #include <stdio.h> #include <stdlib.h> #include <unistd.h> +#include <linux/i2c.h> #include <linux/i2c-dev.h> +#include <i2c/smbus.h> #include "i2cbusses.h" #include "util.h" #include "../version.h" diff --git a/tools/i2cget.c b/tools/i2cget.c index 7053d0f..2503942 100644 --- a/tools/i2cget.c +++ b/tools/i2cget.c @@ -29,7 +29,9 @@ #include <stdio.h> #include <stdlib.h> #include <unistd.h> +#include <linux/i2c.h> #include <linux/i2c-dev.h> +#include <i2c/smbus.h> #include "i2cbusses.h" #include "util.h" #include "../version.h" diff --git a/tools/i2cset.c b/tools/i2cset.c index e143b65..0ccc1a0 100644 --- a/tools/i2cset.c +++ b/tools/i2cset.c @@ -26,7 +26,9 @@ #include <stdio.h> #include <stdlib.h> #include <unistd.h> +#include <linux/i2c.h> #include <linux/i2c-dev.h> +#include <i2c/smbus.h> #include "i2cbusses.h" #include "util.h" #include "../version.h"
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