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

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"