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path: root/drivers/i2c/busses/i2c-i801.c
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Diffstat (limited to 'drivers/i2c/busses/i2c-i801.c')
-rw-r--r--drivers/i2c/busses/i2c-i801.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 230238df56c..10411848fd7 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -65,6 +65,7 @@
#include <linux/i2c.h>
#include <linux/acpi.h>
#include <linux/io.h>
+#include <linux/dmi.h>
/* I801 SMBus address offsets */
#define SMBHSTSTS (0 + i801_smba)
@@ -616,10 +617,81 @@ static void __init input_apanel_init(void)
static void __init input_apanel_init(void) {}
#endif
+#if defined CONFIG_SENSORS_FSCHMD || defined CONFIG_SENSORS_FSCHMD_MODULE
+struct dmi_onboard_device_info {
+ const char *name;
+ u8 type;
+ unsigned short i2c_addr;
+ const char *i2c_type;
+};
+
+static struct dmi_onboard_device_info __devinitdata dmi_devices[] = {
+ { "Syleus", DMI_DEV_TYPE_OTHER, 0x73, "fscsyl" },
+ { "Hermes", DMI_DEV_TYPE_OTHER, 0x73, "fscher" },
+ { "Hades", DMI_DEV_TYPE_OTHER, 0x73, "fschds" },
+};
+
+static void __devinit dmi_check_onboard_device(u8 type, const char *name,
+ struct i2c_adapter *adap)
+{
+ int i;
+ struct i2c_board_info info;
+
+ for (i = 0; i < ARRAY_SIZE(dmi_devices); i++) {
+ /* & ~0x80, ignore enabled/disabled bit */
+ if ((type & ~0x80) != dmi_devices[i].type)
+ continue;
+ if (strcmp(name, dmi_devices[i].name))
+ continue;
+
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ info.addr = dmi_devices[i].i2c_addr;
+ strlcpy(info.type, dmi_devices[i].i2c_type, I2C_NAME_SIZE);
+ i2c_new_device(adap, &info);
+ break;
+ }
+}
+
+/* We use our own function to check for onboard devices instead of
+ dmi_find_device() as some buggy BIOS's have the devices we are interested
+ in marked as disabled */
+static void __devinit dmi_check_onboard_devices(const struct dmi_header *dm,
+ void *adap)
+{
+ int i, count;
+
+ if (dm->type != 10)
+ return;
+
+ count = (dm->length - sizeof(struct dmi_header)) / 2;
+ for (i = 0; i < count; i++) {
+ const u8 *d = (char *)(dm + 1) + (i * 2);
+ const char *name = ((char *) dm) + dm->length;
+ u8 type = d[0];
+ u8 s = d[1];
+
+ if (!s)
+ continue;
+ s--;
+ while (s > 0 && name[0]) {
+ name += strlen(name) + 1;
+ s--;
+ }
+ if (name[0] == 0) /* Bogus string reference */
+ continue;
+
+ dmi_check_onboard_device(type, name, adap);
+ }
+}
+#endif
+
static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
unsigned char temp;
int err;
+#if defined CONFIG_SENSORS_FSCHMD || defined CONFIG_SENSORS_FSCHMD_MODULE
+ const char *vendor;
+#endif
I801_dev = dev;
i801_features = 0;
@@ -712,6 +784,11 @@ static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id
i2c_new_device(&i801_adapter, &info);
}
#endif
+#if defined CONFIG_SENSORS_FSCHMD || defined CONFIG_SENSORS_FSCHMD_MODULE
+ vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
+ if (vendor && !strcmp(vendor, "FUJITSU SIEMENS"))
+ dmi_walk(dmi_check_onboard_devices, &i801_adapter);
+#endif
return 0;