Date: Wed, 3 Jul 2002 07:52:57 +0200 From: Nicolas Souchu <nsouch@free.fr> To: "Thomas D. Dean" <tomdean@speakeasy.org> Cc: evantd@hotmail.com, freebsd-hackers@FreeBSD.ORG Subject: Re: AS99127F Hardware Monitor Message-ID: <20020703075257.A20219@armor.fastether> In-Reply-To: <200207011407.g61E7sCH005717@asus.tddhome>; from tomdean@speakeasy.org on Mon, Jul 01, 2002 at 07:07:54AM -0700 References: <F1918Dz34lXoUjpThvi00007ec1@hotmail.com> <200206172232.g5HMWqfK001804@asus.tddhome> <20020701075958.B6932@armor.fastether> <200207011407.g61E7sCH005717@asus.tddhome>
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[-- Attachment #1 --]
On Mon, Jul 01, 2002 at 07:07:54AM -0700, Thomas D. Dean wrote:
> The ASUS A7N266-E motherboard has the nVidia 420D chipset. Of course,
> ASUS and nVidia will not provide datasheets...
>
> This is not a production machine...
So, have you -current installed?
Here is the nForce diff from Linux lm_sensors. Do you feel like trying the change by
yourself? Otherwise, I'll have to do it...
Nicholas
--
Nicholas Souchu - nsouch@free.fr - nsouch@FreeBSD.org
[-- Attachment #2 --]
Index: i2c-amd756.c
===================================================================
RCS file: /home/cvs/lm_sensors2/kernel/busses/i2c-amd756.c,v
retrieving revision 1.16
retrieving revision 1.19
diff -u -r1.16 -r1.19
--- i2c-amd756.c 2002/05/01 23:17:25 1.16
+++ i2c-amd756.c 2002/05/02 14:44:31 1.19
@@ -2,7 +2,7 @@
amd756.c - Part of lm_sensors, Linux kernel modules for hardware
monitoring
- Copyright (c) 1999 Merlin Hughes <merlin@merlin.org>
+ Copyright (c) 1999-2002 Merlin Hughes <merlin@merlin.org>
Shamelessly ripped from i2c-piix4.c:
@@ -25,7 +25,11 @@
*/
/*
- Supports AMD756, AMD766, and AMD768.
+ 2002-04-08: Added nForce support. (Csaba Halasz)
+*/
+
+/*
+ Supports AMD756, AMD766, AMD768 and nVidia nForce
Note: we assume there can only be one device, with one SMBus interface.
*/
@@ -41,21 +45,31 @@
#include "version.h"
#include <linux/init.h>
-#ifdef MODULE_LICENSE
-MODULE_LICENSE("GPL");
-#endif
-
#ifndef PCI_DEVICE_ID_AMD_756
#define PCI_DEVICE_ID_AMD_756 0x740B
#endif
#ifndef PCI_DEVICE_ID_AMD_766
#define PCI_DEVICE_ID_AMD_766 0x7413
#endif
+#ifndef PCI_DEVICE_ID_NVIDIA_NFORCE_SMBUS
+#define PCI_DEVICE_ID_NVIDIA_NFORCE_SMBUS 0x01B4
+#endif
+
+struct sd {
+ const unsigned short vendor;
+ const unsigned short device;
+ const unsigned short function;
+ const char* name;
+ int amdsetup:1;
+};
-static int supported[] = {PCI_DEVICE_ID_AMD_756,
- PCI_DEVICE_ID_AMD_766,
- 0x7443, /* AMD768 */
- 0 };
+static struct sd supported[] = {
+ {PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_756, 3, "AMD756", 1},
+ {PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_766, 3, "AMD766", 1},
+ {PCI_VENDOR_ID_AMD, 0x7443, 3, "AMD768", 1},
+ {PCI_VENDOR_ID_NVIDIA, 0x01B4, 1, "nVidia nForce", 0},
+ {0, 0, 0}
+};
/* AMD756 SMBus address offsets */
#define SMB_ADDR_OFFSET 0xE0
@@ -141,6 +155,7 @@
};
static int __initdata amd756_initialized;
+static struct sd *amd756_sd = NULL;
static unsigned short amd756_smba = 0;
/* Detect whether a AMD756 can be found, and initialize it, where necessary.
@@ -150,7 +165,7 @@
int amd756_setup(void)
{
unsigned char temp;
- int *num = supported;
+ struct sd *currdev;
struct pci_dev *AMD756_dev = NULL;
if (pci_present() == 0) {
@@ -158,38 +173,41 @@
return(-ENODEV);
}
- /* Look for the AMD756, function 3 */
- /* Note: we keep on searching until we have found 'function 3' */
- do {
- if((AMD756_dev = pci_find_device(PCI_VENDOR_ID_AMD,
- *num, AMD756_dev))) {
- if(PCI_FUNC(AMD756_dev->devfn) != 3)
- continue;
- break;
+ /* Look for a supported chip */
+ for(currdev = supported; currdev->vendor; ) {
+ AMD756_dev = pci_find_device(currdev->vendor,
+ currdev->device, AMD756_dev);
+ if (AMD756_dev != NULL) {
+ if (PCI_FUNC(AMD756_dev->devfn) == currdev->function)
+ break;
+ } else {
+ currdev++;
}
- num++;
- } while (*num != 0);
+ }
if (AMD756_dev == NULL) {
printk
- ("i2c-amd756.o: Error: Can't detect AMD756, function 3!\n");
+ ("i2c-amd756.o: Error: No AMD756 or compatible device detected!\n");
return(-ENODEV);
}
+ printk(KERN_INFO "i2c-amd756.o: Found %s SMBus controller.\n", currdev->name);
+ if (currdev->amdsetup)
+ {
+ pci_read_config_byte(AMD756_dev, SMBGCFG, &temp);
+ if ((temp & 128) == 0) {
+ printk("i2c-amd756.o: Error: SMBus controller I/O not enabled!\n");
+ return(-ENODEV);
+ }
- pci_read_config_byte(AMD756_dev, SMBGCFG, &temp);
- if ((temp & 128) == 0) {
- printk
- ("i2c-amd756.o: Error: SMBus controller I/O not enabled!\n");
- return(-ENODEV);
+ /* Determine the address of the SMBus areas */
+ /* Technically it is a dword but... */
+ pci_read_config_word(AMD756_dev, SMBBA, &amd756_smba);
+ amd756_smba &= 0xff00;
+ amd756_smba += SMB_ADDR_OFFSET;
+ } else {
+ amd756_smba = 0x5500;
}
-
- /* Determine the address of the SMBus areas */
- /* Technically it is a dword but... */
- pci_read_config_word(AMD756_dev, SMBBA, &amd756_smba);
- amd756_smba &= 0xff00;
- amd756_smba += SMB_ADDR_OFFSET;
-
if (check_region(amd756_smba, SMB_IOSIZE)) {
printk
("i2c-amd756.o: SMB region 0x%x already in use!\n",
@@ -206,6 +224,9 @@
printk("i2c-amd756.o: AMD756_smba = 0x%X\n", amd756_smba);
#endif /* DEBUG */
+ /* store struct sd * for future reference */
+ amd756_sd = currdev;
+
return 0;
}
@@ -464,13 +485,13 @@
amd756_initialized = 0;
if ((res = amd756_setup())) {
printk
- ("i2c-amd756.o: AMD756/766 not detected, module not inserted.\n");
+ ("i2c-amd756.o: AMD756 or compatible device not detected, module not inserted.\n");
amd756_cleanup();
return res;
}
amd756_initialized++;
- sprintf(amd756_adapter.name, "SMBus AMD7X6 adapter at %04x",
- amd756_smba);
+ sprintf(amd756_adapter.name, "SMBus %s adapter at %04x",
+ amd756_sd->name, amd756_smba);
if ((res = i2c_add_adapter(&amd756_adapter))) {
printk
("i2c-amd756.o: Adapter registration failed, module not inserted.\n");
@@ -478,7 +499,8 @@
return res;
}
amd756_initialized++;
- printk("i2c-amd756.o: AMD756/766 bus detected and initialized\n");
+ printk("i2c-amd756.o: %s bus detected and initialized\n",
+ amd756_sd->name);
return 0;
}
@@ -505,7 +527,11 @@
#ifdef MODULE
MODULE_AUTHOR("Merlin Hughes <merlin@merlin.org>");
-MODULE_DESCRIPTION("AMD756/766 SMBus driver");
+MODULE_DESCRIPTION("AMD756/766/768/nVidia nForce SMBus driver");
+
+#ifdef MODULE_LICENSE
+MODULE_LICENSE("GPL");
+#endif
int init_module(void)
{
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