Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit fa5bfab7 authored by Hans de Goede's avatar Hans de Goede Committed by Jean Delvare
Browse files

i2c-i801: Instantiate FSC hardware montioring chips 



Detect various FSC hwmon IC's based on DMI tables and then let
the i2c-i801 driver instantiate the i2c client devices. Note that
some of the info in the added table is indentical for all rows, still
this is kept in the table to keep the code general and thus (hopefully)
easily extensible in the future.

Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
parent e7a19c56

drivers/i2c/busses/i2c-i801.c

+77 −0
Original line number Original line Diff line number Diff line
@@ -65,6 +65,7 @@ 
#include <linux/i2c.h>

#include <linux/i2c.h>

#include <linux/acpi.h>

#include <linux/acpi.h>

#include <linux/io.h>

#include <linux/io.h>

#include <linux/dmi.h>





/* I801 SMBus address offsets */

/* I801 SMBus address offsets */

#define SMBHSTSTS	(0 + i801_smba)

#define SMBHSTSTS	(0 + i801_smba)
@@ -616,10 +617,81 @@ static void __init input_apanel_init(void) 
static void __init input_apanel_init(void) {}

static void __init input_apanel_init(void) {}

#endif

#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)

static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id *id)

{

{

	unsigned char temp;

	unsigned char temp;

	int err;

	int err;

#if defined CONFIG_SENSORS_FSCHMD || defined CONFIG_SENSORS_FSCHMD_MODULE

	const char *vendor;

#endif





	I801_dev = dev;

	I801_dev = dev;

	i801_features = 0;

	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);

		i2c_new_device(&i801_adapter, &info);

	}

	}

#endif

#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;

	return 0;