[PATCH] amd756 and amd8111 sensors support

Add support for amd756 and amd8111 sensors

MAINTAINERS

@@ -762,6 +762,15 @@ L:	linux-i2c@pelican.tk.uni-linz.ac.at
 W:	http://www.tk.uni-linz.ac.at/~simon/private/i2c
 S:	Maintained
 
+SENSORS DRIVERS
+P:      Frodo Looijaard
+M:      frodol@dds.nl
+P:      Philip Edelbrock
+M:      phil@netroedge.com
+L:      sensors@stimpy.netroedge.com
+W:      http://www.lm-sensors.nu/
+S:      Maintained
+
 i386 BOOT CODE
 P:	Riley H. Williams
 M:	Riley@Williams.Name

drivers/Makefile

@@ -38,6 +38,8 @@ obj-$(CONFIG_GAMEPORT)		+= input/gameport/
 obj-$(CONFIG_SERIO)		+= input/serio/
 obj-$(CONFIG_I2O)		+= message/
 obj-$(CONFIG_I2C)		+= i2c/
+obj-$(CONFIG_I2C_MAINBOARD)	+= i2c/busses/
+obj-$(CONFIG_SENSORS)		+= i2c/chips/
 obj-$(CONFIG_PHONE)		+= telephony/
 obj-$(CONFIG_MD)		+= md/
 obj-$(CONFIG_BT)		+= bluetooth/

drivers/char/mem.c

@@ -27,6 +27,12 @@
 #include <asm/io.h>
 #include <asm/pgalloc.h>
 
+#ifdef CONFIG_I2C_MAINBOARD
+extern void i2c_mainboard_init_all(void);
+#endif
+#ifdef CONFIG_SENSORS
+extern void sensors_init_all(void);
+#endif
 #ifdef CONFIG_I2C
 extern int i2c_init_all(void);
 #endif
@@ -705,6 +711,9 @@ int __init chr_dev_init(void)
 #ifdef CONFIG_I2C
 	i2c_init_all();
 #endif
+#ifdef CONFIG_I2C_MAINBOARD
+	i2c_mainboard_init_all();
+#endif
 #if defined (CONFIG_FB)
 	fbmem_init();
 #endif
@@ -719,6 +728,10 @@ int __init chr_dev_init(void)
 #if defined(CONFIG_S390_TAPE) && defined(CONFIG_S390_TAPE_CHAR)
 	tapechar_init();
 #endif
+#ifdef CONFIG_SENSORS
+	sensors_init_all();
+#endif
+
 	return 0;
 }
 

drivers/i2c/Kconfig

@@ -193,5 +193,8 @@ config I2C_PROC
 	  it as a module, say M here and read <file:Documentation/modules.txt>.
 	  The module will be called i2c-proc.o.
 
+	source drivers/i2c/busses/Kconfig
+	source drivers/i2c/chips/Kconfig
+
 endmenu
 

drivers/i2c/busses/Kconfig

+#
+# Sensor device configuration
+# All depend on EXPERIMENTAL, I2C and I2C_PROC.
+#
+
+menu "I2C Hardware Sensors Mainboard support"
+
+config I2C_MAINBOARD
+	bool "Hardware sensors mainboard support"
+	depends on EXPERIMENTAL && I2C && I2C_PROC
+	help
+	  Many modern mainboards have some kind of I2C interface integrated. This
+	  is often in the form of a SMBus, or System Management Bus, which is
+	  basically the same as I2C but which uses only a subset of the I2C
+	  protocol.
+
+	  You will also want the latest user-space utilties: you can find them
+	  in the lm_sensors package, which you can download at 
+	  http://www.lm-sensors.nu
+
+config I2C_AMD756
+	tristate "  AMD 756/766"
+	depends on I2C_MAINBOARD
+	help
+	  If you say yes to this option, support will be included for the AMD
+	  756/766/768 mainboard I2C interfaces.
+
+	  This can also be built as a module which can be inserted and removed 
+	  while the kernel is running.  If you want to compile it as a module,
+	  say M here and read <file:Documentation/modules.txt>.
+
+	  The module will be called i2c-amd756.o.
+
+	  You will also need the latest user-space utilties: you can find them
+	  in the lm_sensors package, which you can download at 
+	  http://www.lm-sensors.nu
+
+config I2C_AMD8111
+	tristate "  AMD 8111"
+	depends on I2C_MAINBOARD
+	help
+	  If you say yes to this option, support will be included for the AMD
+	  8111 mainboard I2C interfaces.
+
+	  This can also be built as a module which can be inserted and removed 
+	  while the kernel is running.  If you want to compile it as a module,
+	  say M here and read <file:Documentation/modules.txt>.
+
+	  The module will be called i2c-amd8111.o.
+
+	  You will also need the latest user-space utilties: you can find them
+	  in the lm_sensors package, which you can download at 
+	  http://www.lm-sensors.nu
+
+endmenu
+

drivers/i2c/busses/Makefile

+#
+# Makefile for the kernel hardware sensors bus drivers.
+#
+
+obj-$(CONFIG_I2C_MAINBOARD)	+= i2c-mainboard.o
+obj-$(CONFIG_I2C_AMD756)	+= i2c-amd756.o
+obj-$(CONFIG_I2C_AMD8111)	+= i2c-amd8111.o

drivers/i2c/busses/i2c-mainboard.c

+/*
+    i2c-mainboard.c - Part of lm_sensors, Linux kernel modules for hardware
+                monitoring
+    Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl> 
+
+    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.
+*/
+
+/* Not configurable as a module */
+
+#include <linux/init.h>
+
+extern int i2c_amd756_init(void);
+
+int __init i2c_mainboard_init_all(void)
+{
+#ifdef CONFIG_I2C_AMD756
+	i2c_amd756_init();
+#endif
+
+	return 0;
+}

drivers/i2c/chips/Kconfig

+#
+# Sensor device configuration
+# All depend on EXPERIMENTAL, I2C and I2C_PROC.
+#
+
+menu "I2C Hardware Sensors Chip support"
+
+config SENSORS
+	bool "Hardware sensors chip support"
+	depends on EXPERIMENTAL && I2C && I2C_PROC
+	help
+	  Many modern mainboards have some kind of I2C interface integrated.
+	  This is often in the form of a SMBus, or System Management Bus, which
+	  is basically the same as I2C but which uses only a subset of the I2C
+	  protocol.
+
+	  You will also want the latest user-space utilties: you can find them
+	  in the lm_sensors package, which you can download at 
+	  http://www.lm-sensors.nu
+
+config SENSORS_ADM1021
+	tristate "  Analog Devices ADM1021 and compatibles"
+	depends on SENSORS
+	help
+	  If you say yes here you get support for Analog Devices ADM1021 
+	  and ADM1023 sensor chips and clones: Maxim MAX1617 and MAX1617A,
+	  Genesys Logic GL523SM, National Semi LM84, TI THMC10,
+	  and the XEON processor built-in sensor. This can also 
+	  be built as a module which can be inserted and removed while the 
+	  kernel is running.
+
+	  The module will be called adm1021.o.
+	  
+	  You will also need the latest user-space utilties: you can find them
+	  in the lm_sensors package, which you can download at 
+	  http://www.lm-sensors.nu
+
+config SENSORS_LM75
+	tristate "  National Semiconductors LM75 and compatibles"
+	depends on SENSORS
+	help
+	  If you say yes here you get support for National Semiconductor LM75
+	  sensor chips and clones: Dallas Semi DS75 and DS1775, TelCon
+	  TCN75, and National Semi LM77. This can also be built as a module
+	  which can be inserted and removed while the kernel is running.
+
+	  The module will be called lm75.o.
+
+	  You will also need the latest user-space utilties: you can find them
+	  in the lm_sensors package, which you can download at 
+	  http://www.lm-sensors.nu
+
+endmenu
+

drivers/i2c/chips/Makefile

+#
+# Makefile for the kernel hardware sensors chip drivers.
+#
+
+obj-$(CONFIG_SENSORS)		+= sensors.o
+obj-$(CONFIG_SENSORS_ADM1021)	+= adm1021.o
+obj-$(CONFIG_SENSORS_LM75)	+= lm75.o

drivers/i2c/chips/sensors.c

+/*
+    sensors.c - Part of lm_sensors, Linux kernel modules for hardware
+                monitoring
+    Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl> 
+
+    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.
+*/
+
+/* Not configurable as a module */
+
+#include <linux/init.h>
+
+extern int sensors_adm1021_init(void);
+extern int sensors_lm75_init(void);
+
+int __init sensors_init_all(void)
+{
+#ifdef CONFIG_SENSORS_ADM1021
+	sensors_adm1021_init();
+#endif
+#ifdef CONFIG_SENSORS_LM75
+	sensors_lm75_init();
+#endif
+	return 0;
+}

drivers/i2c/i2c-core.c

@@ -21,7 +21,7 @@
    All SMBus-related things are written by Frodo Looijaard <frodol@dds.nl>
    SMBus 2.0 support by Mark Studebaker <mdsxyz123@yahoo.com>                */
 
-/* $Id: i2c-core.c,v 1.86 2002/09/12 06:47:26 ac9410 Exp $ */
+/* $Id: i2c-core.c,v 1.89 2002/11/03 16:47:16 mds Exp $ */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
@@ -77,7 +77,8 @@ static int i2c_debug;
 
 #ifdef CONFIG_PROC_FS
 
-static int i2cproc_init(void);
+int __init i2cproc_init(void);
+void __exit i2cproc_exit(void);
 static int i2cproc_cleanup(void);
 
 static ssize_t i2cproc_bus_read(struct file * file, char * buf,size_t count, 
@@ -1332,15 +1333,15 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
 		if (read_write == I2C_SMBUS_READ) {
 			msg[1].len = I2C_SMBUS_I2C_BLOCK_MAX;
 		} else {
-			msg[0].len = data->block[0] + 2;
-			if (msg[0].len > I2C_SMBUS_I2C_BLOCK_MAX + 2) {
+			msg[0].len = data->block[0] + 1;
+			if (msg[0].len > I2C_SMBUS_I2C_BLOCK_MAX + 1) {
 				printk("i2c-core.o: i2c_smbus_xfer_emulated called with "
 				       "invalid block write size (%d)\n",
 				       data->block[0]);
 				return -1;
 			}
-			for (i = 0; i < data->block[0]; i++)
-				msgbuf0[i] = data->block[i+1];
+			for (i = 1; i <= data->block[0]; i++)
+				msgbuf0[i] = data->block[i];
 		}
 		break;
 	default:
@@ -1456,7 +1457,7 @@ static int __init i2c_init(void)
 	return 0;
 }
 
-static void __exit i2c_exit(void)
+void __exit i2c_exit(void)
 {
 	i2cproc_cleanup();
 }

drivers/i2c/i2c-dev.c

@@ -28,7 +28,7 @@
 /* The devfs code is contributed by Philipp Matthias Hahn 
    <pmhahn@titan.lahn.de> */
 
-/* $Id: i2c-dev.c,v 1.46 2002/07/06 02:07:39 mds Exp $ */
+/* $Id: i2c-dev.c,v 1.48 2002/10/01 14:10:04 ac9410 Exp $ */
 
 #include <linux/config.h>
 #include <linux/kernel.h>
@@ -48,6 +48,10 @@
 #include <linux/i2c.h>
 #include <linux/i2c-dev.h>
 
+int __init i2c_dev_init(void);
+void __exit i2c_dev_exit(void);
+static int dev_cleanup(void);
+
 /* struct file_operations changed too often in the 2.1 series for nice code */
 
 static ssize_t i2cdev_read (struct file *file, char *buf, size_t count, 
@@ -433,7 +437,7 @@ static int i2cdev_command(struct i2c_client *client, unsigned int cmd,
 	return -1;
 }
 
-static void i2cdev_cleanup(void)
+static int dev_cleanup(void)
 {
 	int res;
 
@@ -467,6 +471,11 @@ int __init i2c_dev_init(void)
 	return 0;
 }
 
+void __exit i2c_dev_exit(void)
+{
+	dev_cleanup();
+}
+
 EXPORT_NO_SYMBOLS;
 
 MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl> and Simon G. Vogl <simon@tk.uni-linz.ac.at>");
@@ -474,4 +483,4 @@ MODULE_DESCRIPTION("I2C /dev entries driver");
 MODULE_LICENSE("GPL");
 
 module_init(i2c_dev_init);
-module_exit(i2cdev_cleanup);
+module_exit(i2c_dev_exit);

drivers/i2c/i2c-proc.c

@@ -40,6 +40,10 @@
 #define THIS_MODULE NULL
 #endif
 
+int __init sensors_init(void);
+void __exit i2c_proc_exit(void);
+static int proc_cleanup(void);
+
 static int i2c_create_name(char **name, const char *prefix,
 			       struct i2c_adapter *adapter, int addr);
 static int i2c_parse_reals(int *nrels, void *buffer, int bufsize,
@@ -56,6 +60,7 @@ static int i2c_sysctl_chips(ctl_table * table, int *name, int nlen,
 
 #define SENSORS_ENTRY_MAX 20
 static struct ctl_table_header *i2c_entries[SENSORS_ENTRY_MAX];
+static unsigned short i2c_inodes[SENSORS_ENTRY_MAX];
 
 static struct i2c_client *i2c_clients[SENSORS_ENTRY_MAX];
 
@@ -186,6 +191,8 @@ int i2c_register_entry(struct i2c_client *client, const char *prefix,
 		return id;
 	}
 #endif				/* DEBUG */
+	i2c_inodes[id - 256] =
+	    new_header->ctl_table->child->child->de->low_ino;
 	new_header->ctl_table->child->child->de->owner = controlling_mod;
 
 	return id;
@@ -208,6 +215,49 @@ void i2c_deregister_entry(int id)
 	}
 }
 
+/* Monitor access for /proc/sys/dev/sensors; make unloading i2c-proc.o 
+   impossible if some process still uses it or some file in it */
+void i2c_fill_inode(struct inode *inode, int fill)
+{
+	if (fill)
+		MOD_INC_USE_COUNT;
+	else
+		MOD_DEC_USE_COUNT;
+}
+
+/* Monitor access for /proc/sys/dev/sensors/ directories; make unloading
+   the corresponding module impossible if some process still uses it or
+   some file in it */
+void i2c_dir_fill_inode(struct inode *inode, int fill)
+{
+	int i;
+	struct i2c_client *client;
+
+#ifdef DEBUG
+	if (!inode) {
+		printk(KERN_ERR "i2c-proc.o: Warning: inode NULL in fill_inode()\n");
+		return;
+	}
+#endif				/* def DEBUG */
+
+	for (i = 0; i < SENSORS_ENTRY_MAX; i++)
+		if (i2c_clients[i]
+		    && (i2c_inodes[i] == inode->i_ino)) break;
+#ifdef DEBUG
+	if (i == SENSORS_ENTRY_MAX) {
+		printk
+		    (KERN_ERR "i2c-proc.o: Warning: inode (%ld) not found in fill_inode()\n",
+		     inode->i_ino);
+		return;
+	}
+#endif				/* def DEBUG */
+	client = i2c_clients[i];
+	if (fill)
+		client->driver->inc_use(client);
+	else
+		client->driver->dec_use(client);
+}
+
 int i2c_proc_chips(ctl_table * ctl, int write, struct file *filp,
 		       void *buffer, size_t * lenp)
 {
@@ -813,12 +863,18 @@ int __init sensors_init(void)
 	return 0;
 }
 
-static void __exit i2c_cleanup(void)
+void __exit i2c_proc_exit(void)
+{
+	proc_cleanup();
+}
+
+static int proc_cleanup(void)
 {
 	if (i2c_initialized >= 1) {
 		unregister_sysctl_table(i2c_proc_header);
 		i2c_initialized--;
 	}
+	return 0;
 }
 
 EXPORT_SYMBOL(i2c_deregister_entry);
@@ -832,4 +888,4 @@ MODULE_DESCRIPTION("i2c-proc driver");
 MODULE_LICENSE("GPL");
 
 module_init(sensors_init);
-module_exit(i2c_cleanup);
+module_exit(i2c_proc_exit);

include/linux/i2c-id.h

@@ -233,6 +233,7 @@
 #define I2C_HW_SMBUS_ALI1535	0x07
 #define I2C_HW_SMBUS_SIS630	0x08
 #define I2C_HW_SMBUS_SIS645	0x09
+#define I2C_HW_SMBUS_AMD8111	0x0a
 
 /* --- ISA pseudo-adapter						*/
 #define I2C_HW_ISA 0x00

include/linux/i2c-proc.h

@@ -348,6 +348,31 @@ struct i2c_address_data {
                                                  {NULL}}; \
   SENSORS_INSMOD
 
+#define SENSORS_INSMOD_8(chip1,chip2,chip3,chip4,chip5,chip6,chip7,chip8) \
+  enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, chip7, chip8 }; \
+  SENSORS_MODULE_PARM(force, \
+                      "List of adapter,address pairs to boldly assume " \
+                      "to be present"); \
+  SENSORS_MODULE_PARM_FORCE(chip1); \
+  SENSORS_MODULE_PARM_FORCE(chip2); \
+  SENSORS_MODULE_PARM_FORCE(chip3); \
+  SENSORS_MODULE_PARM_FORCE(chip4); \
+  SENSORS_MODULE_PARM_FORCE(chip5); \
+  SENSORS_MODULE_PARM_FORCE(chip6); \
+  SENSORS_MODULE_PARM_FORCE(chip7); \
+  SENSORS_MODULE_PARM_FORCE(chip8); \
+  static struct i2c_force_data forces[] = {{force,any_chip}, \
+                                                 {force_ ## chip1,chip1}, \
+                                                 {force_ ## chip2,chip2}, \
+                                                 {force_ ## chip3,chip3}, \
+                                                 {force_ ## chip4,chip4}, \
+                                                 {force_ ## chip5,chip5}, \
+                                                 {force_ ## chip6,chip6}, \
+                                                 {force_ ## chip7,chip7}, \
+                                                 {force_ ## chip8,chip8}, \
+                                                 {NULL}}; \
+  SENSORS_INSMOD
+
 typedef int i2c_found_addr_proc(struct i2c_adapter *adapter,
 				    int addr, unsigned short flags,
 				    int kind);