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"
