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path: root/drivers/hwmon/applesmc.c
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Diffstat (limited to 'drivers/hwmon/applesmc.c')
-rw-r--r--drivers/hwmon/applesmc.c165
1 files changed, 137 insertions, 28 deletions
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index b06b8e090a2..086c2a5cef0 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -49,6 +49,9 @@
#define APPLESMC_MAX_DATA_LENGTH 32
+#define APPLESMC_MIN_WAIT 0x0040
+#define APPLESMC_MAX_WAIT 0x8000
+
#define APPLESMC_STATUS_MASK 0x0f
#define APPLESMC_READ_CMD 0x10
#define APPLESMC_WRITE_CMD 0x11
@@ -57,8 +60,8 @@
#define KEY_COUNT_KEY "#KEY" /* r-o ui32 */
-#define LIGHT_SENSOR_LEFT_KEY "ALV0" /* r-o {alv (6 bytes) */
-#define LIGHT_SENSOR_RIGHT_KEY "ALV1" /* r-o {alv (6 bytes) */
+#define LIGHT_SENSOR_LEFT_KEY "ALV0" /* r-o {alv (6-10 bytes) */
+#define LIGHT_SENSOR_RIGHT_KEY "ALV1" /* r-o {alv (6-10 bytes) */
#define BACKLIGHT_KEY "LKSB" /* w-o {lkb (2 bytes) */
#define CLAMSHELL_KEY "MSLD" /* r-o ui8 (unused) */
@@ -104,6 +107,30 @@ static const char* temperature_sensors_sets[][36] = {
/* Set 6: Macbook3 set */
{ "TB0T", "TC0D", "TC0P", "TM0P", "TN0P", "TTF0", "TW0P", "Th0H",
"Th0S", "Th1H", NULL },
+/* Set 7: Macbook Air */
+ { "TB0T", "TB1S", "TB1T", "TB2S", "TB2T", "TC0D", "TC0P", "TCFP",
+ "TTF0", "TW0P", "Th0H", "Tp0P", "TpFP", "Ts0P", "Ts0S", NULL },
+/* Set 8: Macbook Pro 4,1 (Penryn) */
+ { "TB0T", "TC0D", "TC0P", "TG0D", "TG0H", "TTF0", "TW0P", "Th0H",
+ "Th1H", "Th2H", "Tm0P", "Ts0P", NULL },
+/* Set 9: Macbook Pro 3,1 (Santa Rosa) */
+ { "TALP", "TB0T", "TC0D", "TC0P", "TG0D", "TG0H", "TTF0", "TW0P",
+ "Th0H", "Th1H", "Th2H", "Tm0P", "Ts0P", NULL },
+/* Set 10: iMac 5,1 */
+ { "TA0P", "TC0D", "TC0P", "TG0D", "TH0P", "TO0P", "Tm0P", NULL },
+/* Set 11: Macbook 5,1 */
+ { "TB0T", "TB1T", "TB2T", "TB3T", "TC0D", "TC0P", "TN0D", "TN0P",
+ "TTF0", "Th0H", "Th1H", "ThFH", "Ts0P", "Ts0S", NULL },
+/* Set 12: Macbook Pro 5,1 */
+ { "TB0T", "TB1T", "TB2T", "TB3T", "TC0D", "TC0F", "TC0P", "TG0D",
+ "TG0F", "TG0H", "TG0P", "TG0T", "TG1H", "TN0D", "TN0P", "TTF0",
+ "Th2H", "Tm0P", "Ts0P", "Ts0S", NULL },
+/* Set 13: iMac 8,1 */
+ { "TA0P", "TC0D", "TC0H", "TC0P", "TG0D", "TG0H", "TG0P", "TH0P",
+ "TL0P", "TO0P", "TW0P", "Tm0P", "Tp0P", NULL },
+/* Set 14: iMac 6,1 */
+ { "TA0P", "TC0D", "TC0H", "TC0P", "TG0D", "TG0H", "TG0P", "TH0P",
+ "TO0P", "Tp0P", NULL },
};
/* List of keys used to read/write fan speeds */
@@ -163,25 +190,25 @@ static unsigned int key_at_index;
static struct workqueue_struct *applesmc_led_wq;
/*
- * __wait_status - Wait up to 2ms for the status port to get a certain value
+ * __wait_status - Wait up to 32ms for the status port to get a certain value
* (masked with 0x0f), returning zero if the value is obtained. Callers must
* hold applesmc_lock.
*/
static int __wait_status(u8 val)
{
- unsigned int i;
+ int us;
val = val & APPLESMC_STATUS_MASK;
- for (i = 0; i < 200; i++) {
+ for (us = APPLESMC_MIN_WAIT; us < APPLESMC_MAX_WAIT; us <<= 1) {
+ udelay(us);
if ((inb(APPLESMC_CMD_PORT) & APPLESMC_STATUS_MASK) == val) {
if (debug)
printk(KERN_DEBUG
- "Waited %d us for status %x\n",
- i*10, val);
+ "Waited %d us for status %x\n",
+ 2 * us - APPLESMC_MIN_WAIT, val);
return 0;
}
- udelay(10);
}
printk(KERN_WARNING "applesmc: wait status failed: %x != %x\n",
@@ -191,6 +218,25 @@ static int __wait_status(u8 val)
}
/*
+ * special treatment of command port - on newer macbooks, it seems necessary
+ * to resend the command byte before polling the status again. Callers must
+ * hold applesmc_lock.
+ */
+static int send_command(u8 cmd)
+{
+ int us;
+ for (us = APPLESMC_MIN_WAIT; us < APPLESMC_MAX_WAIT; us <<= 1) {
+ outb(cmd, APPLESMC_CMD_PORT);
+ udelay(us);
+ if ((inb(APPLESMC_CMD_PORT) & APPLESMC_STATUS_MASK) == 0x0c)
+ return 0;
+ }
+ printk(KERN_WARNING "applesmc: command failed: %x -> %x\n",
+ cmd, inb(APPLESMC_CMD_PORT));
+ return -EIO;
+}
+
+/*
* applesmc_read_key - reads len bytes from a given key, and put them in buffer.
* Returns zero on success or a negative error on failure. Callers must
* hold applesmc_lock.
@@ -205,8 +251,7 @@ static int applesmc_read_key(const char* key, u8* buffer, u8 len)
return -EINVAL;
}
- outb(APPLESMC_READ_CMD, APPLESMC_CMD_PORT);
- if (__wait_status(0x0c))
+ if (send_command(APPLESMC_READ_CMD))
return -EIO;
for (i = 0; i < 4; i++) {
@@ -249,8 +294,7 @@ static int applesmc_write_key(const char* key, u8* buffer, u8 len)
return -EINVAL;
}
- outb(APPLESMC_WRITE_CMD, APPLESMC_CMD_PORT);
- if (__wait_status(0x0c))
+ if (send_command(APPLESMC_WRITE_CMD))
return -EIO;
for (i = 0; i < 4; i++) {
@@ -284,8 +328,7 @@ static int applesmc_get_key_at_index(int index, char* key)
readkey[2] = index >> 8;
readkey[3] = index;
- outb(APPLESMC_GET_KEY_BY_INDEX_CMD, APPLESMC_CMD_PORT);
- if (__wait_status(0x0c))
+ if (send_command(APPLESMC_GET_KEY_BY_INDEX_CMD))
return -EIO;
for (i = 0; i < 4; i++) {
@@ -315,8 +358,7 @@ static int applesmc_get_key_type(char* key, char* type)
{
int i;
- outb(APPLESMC_GET_KEY_TYPE_CMD, APPLESMC_CMD_PORT);
- if (__wait_status(0x0c))
+ if (send_command(APPLESMC_GET_KEY_TYPE_CMD))
return -EIO;
for (i = 0; i < 4; i++) {
@@ -325,7 +367,7 @@ static int applesmc_get_key_type(char* key, char* type)
return -EIO;
}
- outb(5, APPLESMC_DATA_PORT);
+ outb(6, APPLESMC_DATA_PORT);
for (i = 0; i < 6; i++) {
if (__wait_status(0x05))
@@ -527,17 +569,27 @@ out:
static ssize_t applesmc_light_show(struct device *dev,
struct device_attribute *attr, char *sysfsbuf)
{
+ static int data_length;
int ret;
u8 left = 0, right = 0;
- u8 buffer[6];
+ u8 buffer[10], query[6];
mutex_lock(&applesmc_lock);
- ret = applesmc_read_key(LIGHT_SENSOR_LEFT_KEY, buffer, 6);
+ if (!data_length) {
+ ret = applesmc_get_key_type(LIGHT_SENSOR_LEFT_KEY, query);
+ if (ret)
+ goto out;
+ data_length = clamp_val(query[0], 0, 10);
+ printk(KERN_INFO "applesmc: light sensor data length set to "
+ "%d\n", data_length);
+ }
+
+ ret = applesmc_read_key(LIGHT_SENSOR_LEFT_KEY, buffer, data_length);
left = buffer[2];
if (ret)
goto out;
- ret = applesmc_read_key(LIGHT_SENSOR_RIGHT_KEY, buffer, 6);
+ ret = applesmc_read_key(LIGHT_SENSOR_RIGHT_KEY, buffer, data_length);
right = buffer[2];
out:
@@ -1231,41 +1283,97 @@ static __initdata struct dmi_match_data applesmc_dmi_data[] = {
{ .accelerometer = 0, .light = 0, .temperature_set = 4 },
/* iMac: temperature set 5 */
{ .accelerometer = 0, .light = 0, .temperature_set = 5 },
-/* MacBook3: accelerometer and temperature set 6 */
+/* MacBook3, MacBook4: accelerometer and temperature set 6 */
{ .accelerometer = 1, .light = 0, .temperature_set = 6 },
+/* MacBook Air: accelerometer, backlight and temperature set 7 */
+ { .accelerometer = 1, .light = 1, .temperature_set = 7 },
+/* MacBook Pro 4: accelerometer, backlight and temperature set 8 */
+ { .accelerometer = 1, .light = 1, .temperature_set = 8 },
+/* MacBook Pro 3: accelerometer, backlight and temperature set 9 */
+ { .accelerometer = 1, .light = 1, .temperature_set = 9 },
+/* iMac 5: light sensor only, temperature set 10 */
+ { .accelerometer = 0, .light = 0, .temperature_set = 10 },
+/* MacBook 5: accelerometer, backlight and temperature set 11 */
+ { .accelerometer = 1, .light = 1, .temperature_set = 11 },
+/* MacBook Pro 5: accelerometer, backlight and temperature set 12 */
+ { .accelerometer = 1, .light = 1, .temperature_set = 12 },
+/* iMac 8: light sensor only, temperature set 13 */
+ { .accelerometer = 0, .light = 0, .temperature_set = 13 },
+/* iMac 6: light sensor only, temperature set 14 */
+ { .accelerometer = 0, .light = 0, .temperature_set = 14 },
};
/* Note that DMI_MATCH(...,"MacBook") will match "MacBookPro1,1".
* So we need to put "Apple MacBook Pro" before "Apple MacBook". */
static __initdata struct dmi_system_id applesmc_whitelist[] = {
+ { applesmc_dmi_match, "Apple MacBook Air", {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir") },
+ &applesmc_dmi_data[7]},
+ { applesmc_dmi_match, "Apple MacBook Pro 5", {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5") },
+ &applesmc_dmi_data[12]},
+ { applesmc_dmi_match, "Apple MacBook Pro 4", {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro4") },
+ &applesmc_dmi_data[8]},
+ { applesmc_dmi_match, "Apple MacBook Pro 3", {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3") },
+ &applesmc_dmi_data[9]},
{ applesmc_dmi_match, "Apple MacBook Pro", {
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
DMI_MATCH(DMI_PRODUCT_NAME,"MacBookPro") },
- (void*)&applesmc_dmi_data[0]},
+ &applesmc_dmi_data[0]},
{ applesmc_dmi_match, "Apple MacBook (v2)", {
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
DMI_MATCH(DMI_PRODUCT_NAME,"MacBook2") },
- (void*)&applesmc_dmi_data[1]},
+ &applesmc_dmi_data[1]},
{ applesmc_dmi_match, "Apple MacBook (v3)", {
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
DMI_MATCH(DMI_PRODUCT_NAME,"MacBook3") },
- (void*)&applesmc_dmi_data[6]},
+ &applesmc_dmi_data[6]},
+ { applesmc_dmi_match, "Apple MacBook 4", {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBook4") },
+ &applesmc_dmi_data[6]},
+ { applesmc_dmi_match, "Apple MacBook 5", {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5") },
+ &applesmc_dmi_data[11]},
{ applesmc_dmi_match, "Apple MacBook", {
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
DMI_MATCH(DMI_PRODUCT_NAME,"MacBook") },
- (void*)&applesmc_dmi_data[2]},
+ &applesmc_dmi_data[2]},
{ applesmc_dmi_match, "Apple Macmini", {
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
DMI_MATCH(DMI_PRODUCT_NAME,"Macmini") },
- (void*)&applesmc_dmi_data[3]},
+ &applesmc_dmi_data[3]},
{ applesmc_dmi_match, "Apple MacPro2", {
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
DMI_MATCH(DMI_PRODUCT_NAME,"MacPro2") },
- (void*)&applesmc_dmi_data[4]},
+ &applesmc_dmi_data[4]},
+ { applesmc_dmi_match, "Apple MacPro", {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacPro") },
+ &applesmc_dmi_data[4]},
+ { applesmc_dmi_match, "Apple iMac 8", {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "iMac8") },
+ &applesmc_dmi_data[13]},
+ { applesmc_dmi_match, "Apple iMac 6", {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "iMac6") },
+ &applesmc_dmi_data[14]},
+ { applesmc_dmi_match, "Apple iMac 5", {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "iMac5") },
+ &applesmc_dmi_data[10]},
{ applesmc_dmi_match, "Apple iMac", {
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
DMI_MATCH(DMI_PRODUCT_NAME,"iMac") },
- (void*)&applesmc_dmi_data[5]},
+ &applesmc_dmi_data[5]},
{ .ident = NULL }
};
@@ -1456,3 +1564,4 @@ module_exit(applesmc_exit);
MODULE_AUTHOR("Nicolas Boichat");
MODULE_DESCRIPTION("Apple SMC");
MODULE_LICENSE("GPL v2");
+MODULE_DEVICE_TABLE(dmi, applesmc_whitelist);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-14 11:57:54 +0000