Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=bc625f20c08c5a5438a9fa3bb6d67fd84b1bab4b
Commit: bc625f20c08c5a5438a9fa3bb6d67fd84b1bab4b
Parent: 430b01e8f5e524a2bfa50074d97d0bdc2505807b
Author: Michael Hanselmann <[EMAIL PROTECTED]>
AuthorDate: Tue Dec 11 11:18:46 2007 +1100
Committer: Paul Mackerras <[EMAIL PROTECTED]>
CommitDate: Tue Dec 11 13:48:34 2007 +1100
[POWERPC] Update smu command definitions
This updates smu.h with several new commands, and adds parameter
descriptions for existing commands.
Signed-off-by: Michael Hanselmann <[EMAIL PROTECTED]>
Signed-off-by: Benjamin Herrenschmidt <[EMAIL PROTECTED]>
Signed-off-by: Paul Mackerras <[EMAIL PROTECTED]>
---
include/asm-powerpc/smu.h | 132 +++++++++++++++++++++++++++++++++++++++++++--
1 files changed, 128 insertions(+), 4 deletions(-)
diff --git a/include/asm-powerpc/smu.h b/include/asm-powerpc/smu.h
index e49f644..76329f4 100644
--- a/include/asm-powerpc/smu.h
+++ b/include/asm-powerpc/smu.h
@@ -173,7 +173,7 @@
* Power supply control
*
* The "sub" command is an ASCII string in the data, the
- * data lenght is that of the string.
+ * data length is that of the string.
*
* The VSLEW command can be used to get or set the voltage slewing.
* - lenght 5 (only "VSLEW") : it returns "DONE" and 3 bytes of
@@ -201,20 +201,90 @@
*/
#define SMU_CMD_READ_ADC 0xd8
+
/* Misc commands
*
* This command seem to be a grab bag of various things
+ *
+ * Parameters:
+ * 1: subcommand
*/
#define SMU_CMD_MISC_df_COMMAND 0xdf
-#define SMU_CMD_MISC_df_SET_DISPLAY_LIT 0x02 /* i: 1 byte */
+
+/*
+ * Sets "system ready" status
+ *
+ * I did not yet understand how it exactly works or what it does.
+ *
+ * Guessing from OF code, 0x02 activates the display backlight. Apple uses/used
+ * the same codebase for all OF versions. On PowerBooks, this command would
+ * enable the backlight. For the G5s, it only activates the front LED. However,
+ * don't take this for granted.
+ *
+ * Parameters:
+ * 2: status [0x00, 0x01 or 0x02]
+ */
+#define SMU_CMD_MISC_df_SET_DISPLAY_LIT 0x02
+
+/*
+ * Sets mode of power switch.
+ *
+ * What this actually does is not yet known. Maybe it enables some interrupt.
+ *
+ * Parameters:
+ * 2: enable power switch? [0x00 or 0x01]
+ * 3 (optional): enable nmi? [0x00 or 0x01]
+ *
+ * Returns:
+ * If parameter 2 is 0x00 and parameter 3 is not specified, returns wether
+ * NMI is enabled. Otherwise unknown.
+ */
#define SMU_CMD_MISC_df_NMI_OPTION 0x04
+/* Sets LED dimm offset.
+ *
+ * The front LED dimms itself during sleep. Its brightness (or, well, the PWM
+ * frequency) depends on current time. Therefore, the SMU needs to know the
+ * timezone.
+ *
+ * Parameters:
+ * 2-8: unknown (BCD coding)
+ */
+#define SMU_CMD_MISC_df_DIMM_OFFSET 0x99
+
+
/*
* Version info commands
*
- * I haven't quite tried to figure out how these work
+ * Parameters:
+ * 1 (optional): Specifies version part to retrieve
+ *
+ * Returns:
+ * Version value
*/
#define SMU_CMD_VERSION_COMMAND 0xea
+#define SMU_VERSION_RUNNING 0x00
+#define SMU_VERSION_BASE 0x01
+#define SMU_VERSION_UPDATE 0x02
+
+
+/*
+ * Switches
+ *
+ * These are switches whose status seems to be known to the SMU.
+ *
+ * Parameters:
+ * none
+ *
+ * Result:
+ * Switch bits (ORed, see below)
+ */
+#define SMU_CMD_SWITCHES 0xdc
+
+/* Switches bits */
+#define SMU_SWITCH_CASE_CLOSED 0x01
+#define SMU_SWITCH_AC_POWER 0x04
+#define SMU_SWITCH_POWER_SWITCH 0x08
/*
@@ -243,10 +313,64 @@
*/
#define SMU_CMD_MISC_ee_COMMAND 0xee
#define SMU_CMD_MISC_ee_GET_DATABLOCK_REC 0x02
-#define SMU_CMD_MISC_ee_LEDS_CTRL 0x04 /* i: 00 (00,01)
[00] */
+
+/* Retrieves currently used watts.
+ *
+ * Parameters:
+ * 1: 0x03 (Meaning unknown)
+ */
+#define SMU_CMD_MISC_ee_GET_WATTS 0x03
+
+#define SMU_CMD_MISC_ee_LEDS_CTRL 0x04 /* i: 00 (00,01) [00] */
#define SMU_CMD_MISC_ee_GET_DATA 0x05 /* i: 00 , o: ?? */
+/*
+ * Power related commands
+ *
+ * Parameters:
+ * 1: subcommand
+ */
+#define SMU_CMD_POWER_EVENTS_COMMAND 0x8f
+
+/* SMU_POWER_EVENTS subcommands */
+enum {
+ SMU_PWR_GET_POWERUP_EVENTS = 0x00,
+ SMU_PWR_SET_POWERUP_EVENTS = 0x01,
+ SMU_PWR_CLR_POWERUP_EVENTS = 0x02,
+ SMU_PWR_GET_WAKEUP_EVENTS = 0x03,
+ SMU_PWR_SET_WAKEUP_EVENTS = 0x04,
+ SMU_PWR_CLR_WAKEUP_EVENTS = 0x05,
+
+ /*
+ * Get last shutdown cause
+ *
+ * Returns:
+ * 1 byte (signed char): Last shutdown cause. Exact meaning unknown.
+ */
+ SMU_PWR_LAST_SHUTDOWN_CAUSE = 0x07,
+
+ /*
+ * Sets or gets server ID. Meaning or use is unknown.
+ *
+ * Parameters:
+ * 2 (optional): Set server ID (1 byte)
+ *
+ * Returns:
+ * 1 byte (server ID?)
+ */
+ SMU_PWR_SERVER_ID = 0x08,
+};
+
+/* Power events wakeup bits */
+enum {
+ SMU_PWR_WAKEUP_KEY = 0x01, /* Wake on key press */
+ SMU_PWR_WAKEUP_AC_INSERT = 0x02, /* Wake on AC adapter plug */
+ SMU_PWR_WAKEUP_AC_CHANGE = 0x04,
+ SMU_PWR_WAKEUP_LID_OPEN = 0x08,
+ SMU_PWR_WAKEUP_RING = 0x10,
+};
+
/*
* - Kernel side interface -
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
