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hwmon: (applesmc) Add support for Mac Pro 2 x Quad-Core
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At least the 2x Quad-Core Apple Mac Pro appears to have some over-heat
protection which suddenly powers off the whole box under load.  This adds
support for the fans and temerature sensors in the Mac Pro - later some
"windwarm" a-like code should probably monitor the values.  For now
manually tweaking the fans prevents the sudden shutdown for me.

cd /sys/devices/platform/applesmc.768
for x in fan{1,2,3,4}; do
	echo 1 > ${x}_manual
	echo 1285 > ${x}_output
done

Two sensors are 0, while four are 129 °C, those might be removed again,
later.

Signed-off-by: René Rebe <rene@exactcode.de>
Cc: Nicolas Boichat <nicolas@boichat.ch>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
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René Rebe authored and Mark M. Hoffman committed Nov 8, 2007
1 parent ff8966a commit 8de5770
Showing 1 changed file with 101 additions and 6 deletions.
107 changes: 101 additions & 6 deletions drivers/hwmon/applesmc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -80,15 +80,21 @@
/*
* Temperature sensors keys (sp78 - 2 bytes).
*/
static const char* temperature_sensors_sets[][13] = {
static const char* temperature_sensors_sets[][36] = {
/* Set 0: Macbook Pro */
{ "TA0P", "TB0T", "TC0D", "TC0P", "TG0H", "TG0P", "TG0T", "Th0H",
"Th1H", "Tm0P", "Ts0P", "Ts1P", NULL },
/* Set 1: Macbook set */
{ "TB0T", "TC0D", "TC0P", "TM0P", "TN0P", "TN1P", "Th0H", "Th0S",
"Th1H", "Ts0P", NULL },
/* Set 2: Macmini set */
{ "TC0D", "TC0P", NULL }
{ "TC0D", "TC0P", NULL },
/* Set 3: Mac Pro (2 x Quad-Core) */
{ "TA0P", "TCAG", "TCAH", "TCBG", "TCBH", "TC0C", "TC0D", "TC0P",
"TC1C", "TC1D", "TC2C", "TC2D", "TC3C", "TC3D", "THTG", "TH0P",
"TH1P", "TH2P", "TH3P", "TMAP", "TMAS", "TMBS", "TM0P", "TM0S",
"TM1P", "TM1S", "TM2P", "TM2S", "TM3S", "TM8P", "TM8S", "TM9P",
"TM9S", "TN0H", "TS0C", NULL },
};

/* List of keys used to read/write fan speeds */
Expand Down Expand Up @@ -990,14 +996,18 @@ static struct attribute *fan##offset##_attributes[] = { \

/*
* Create the needed functions for each fan using the macro defined above
* (2 fans are supported)
* (4 fans are supported)
*/
sysfs_fan_speeds_offset(1);
sysfs_fan_speeds_offset(2);
sysfs_fan_speeds_offset(3);
sysfs_fan_speeds_offset(4);

static const struct attribute_group fan_attribute_groups[] = {
{ .attrs = fan1_attributes },
{ .attrs = fan2_attributes }
{ .attrs = fan2_attributes },
{ .attrs = fan3_attributes },
{ .attrs = fan4_attributes },
};

/*
Expand Down Expand Up @@ -1027,6 +1037,52 @@ static SENSOR_DEVICE_ATTR(temp11_input, S_IRUGO,
applesmc_show_temperature, NULL, 10);
static SENSOR_DEVICE_ATTR(temp12_input, S_IRUGO,
applesmc_show_temperature, NULL, 11);
static SENSOR_DEVICE_ATTR(temp13_input, S_IRUGO,
applesmc_show_temperature, NULL, 12);
static SENSOR_DEVICE_ATTR(temp14_input, S_IRUGO,
applesmc_show_temperature, NULL, 13);
static SENSOR_DEVICE_ATTR(temp15_input, S_IRUGO,
applesmc_show_temperature, NULL, 14);
static SENSOR_DEVICE_ATTR(temp16_input, S_IRUGO,
applesmc_show_temperature, NULL, 15);
static SENSOR_DEVICE_ATTR(temp17_input, S_IRUGO,
applesmc_show_temperature, NULL, 16);
static SENSOR_DEVICE_ATTR(temp18_input, S_IRUGO,
applesmc_show_temperature, NULL, 17);
static SENSOR_DEVICE_ATTR(temp19_input, S_IRUGO,
applesmc_show_temperature, NULL, 18);
static SENSOR_DEVICE_ATTR(temp20_input, S_IRUGO,
applesmc_show_temperature, NULL, 19);
static SENSOR_DEVICE_ATTR(temp21_input, S_IRUGO,
applesmc_show_temperature, NULL, 20);
static SENSOR_DEVICE_ATTR(temp22_input, S_IRUGO,
applesmc_show_temperature, NULL, 21);
static SENSOR_DEVICE_ATTR(temp23_input, S_IRUGO,
applesmc_show_temperature, NULL, 22);
static SENSOR_DEVICE_ATTR(temp24_input, S_IRUGO,
applesmc_show_temperature, NULL, 23);
static SENSOR_DEVICE_ATTR(temp25_input, S_IRUGO,
applesmc_show_temperature, NULL, 24);
static SENSOR_DEVICE_ATTR(temp26_input, S_IRUGO,
applesmc_show_temperature, NULL, 25);
static SENSOR_DEVICE_ATTR(temp27_input, S_IRUGO,
applesmc_show_temperature, NULL, 26);
static SENSOR_DEVICE_ATTR(temp28_input, S_IRUGO,
applesmc_show_temperature, NULL, 27);
static SENSOR_DEVICE_ATTR(temp29_input, S_IRUGO,
applesmc_show_temperature, NULL, 28);
static SENSOR_DEVICE_ATTR(temp30_input, S_IRUGO,
applesmc_show_temperature, NULL, 29);
static SENSOR_DEVICE_ATTR(temp31_input, S_IRUGO,
applesmc_show_temperature, NULL, 30);
static SENSOR_DEVICE_ATTR(temp32_input, S_IRUGO,
applesmc_show_temperature, NULL, 31);
static SENSOR_DEVICE_ATTR(temp33_input, S_IRUGO,
applesmc_show_temperature, NULL, 32);
static SENSOR_DEVICE_ATTR(temp34_input, S_IRUGO,
applesmc_show_temperature, NULL, 33);
static SENSOR_DEVICE_ATTR(temp35_input, S_IRUGO,
applesmc_show_temperature, NULL, 34);

static struct attribute *temperature_attributes[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
Expand All @@ -1041,6 +1097,29 @@ static struct attribute *temperature_attributes[] = {
&sensor_dev_attr_temp10_input.dev_attr.attr,
&sensor_dev_attr_temp11_input.dev_attr.attr,
&sensor_dev_attr_temp12_input.dev_attr.attr,
&sensor_dev_attr_temp13_input.dev_attr.attr,
&sensor_dev_attr_temp14_input.dev_attr.attr,
&sensor_dev_attr_temp15_input.dev_attr.attr,
&sensor_dev_attr_temp16_input.dev_attr.attr,
&sensor_dev_attr_temp17_input.dev_attr.attr,
&sensor_dev_attr_temp18_input.dev_attr.attr,
&sensor_dev_attr_temp19_input.dev_attr.attr,
&sensor_dev_attr_temp20_input.dev_attr.attr,
&sensor_dev_attr_temp21_input.dev_attr.attr,
&sensor_dev_attr_temp22_input.dev_attr.attr,
&sensor_dev_attr_temp23_input.dev_attr.attr,
&sensor_dev_attr_temp24_input.dev_attr.attr,
&sensor_dev_attr_temp25_input.dev_attr.attr,
&sensor_dev_attr_temp26_input.dev_attr.attr,
&sensor_dev_attr_temp27_input.dev_attr.attr,
&sensor_dev_attr_temp28_input.dev_attr.attr,
&sensor_dev_attr_temp29_input.dev_attr.attr,
&sensor_dev_attr_temp30_input.dev_attr.attr,
&sensor_dev_attr_temp31_input.dev_attr.attr,
&sensor_dev_attr_temp32_input.dev_attr.attr,
&sensor_dev_attr_temp33_input.dev_attr.attr,
&sensor_dev_attr_temp34_input.dev_attr.attr,
&sensor_dev_attr_temp35_input.dev_attr.attr,
NULL
};

Expand Down Expand Up @@ -1137,6 +1216,8 @@ static __initdata struct dmi_match_data applesmc_dmi_data[] = {
{ .accelerometer = 1, .light = 0, .temperature_set = 1 },
/* MacMini: temperature set 2 */
{ .accelerometer = 0, .light = 0, .temperature_set = 2 },
/* MacPro: temperature set 3 */
{ .accelerometer = 0, .light = 0, .temperature_set = 3 },
};

/* Note that DMI_MATCH(...,"MacBook") will match "MacBookPro1,1".
Expand All @@ -1154,6 +1235,10 @@ static __initdata struct dmi_system_id applesmc_whitelist[] = {
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
DMI_MATCH(DMI_PRODUCT_NAME,"Macmini") },
(void*)&applesmc_dmi_data[2]},
{ applesmc_dmi_match, "Apple MacPro2", {
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
DMI_MATCH(DMI_PRODUCT_NAME,"MacPro2") },
(void*)&applesmc_dmi_data[3]},
{ .ident = NULL }
};

Expand Down Expand Up @@ -1204,9 +1289,19 @@ static int __init applesmc_init(void)

switch (count) {
default:
printk(KERN_WARNING "applesmc: More than 2 fans found,"
" but at most 2 fans are supported"
printk(KERN_WARNING "applesmc: More than 4 fans found,"
" but at most 4 fans are supported"
" by the driver.\n");
case 4:
ret = sysfs_create_group(&pdev->dev.kobj,
&fan_attribute_groups[3]);
if (ret)
goto out_key_enumeration;
case 3:
ret = sysfs_create_group(&pdev->dev.kobj,
&fan_attribute_groups[2]);
if (ret)
goto out_key_enumeration;
case 2:
ret = sysfs_create_group(&pdev->dev.kobj,
&fan_attribute_groups[1]);
Expand Down

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