1 files changed, 240 insertions, 0 deletions

diff --git a/include/linux/pmu.h b/include/linux/pmu.h
new file mode 100644
index 000000000000..6d73eada277e
--- /dev/null
+++ b/include/linux/pmu.h
@@ -0,0 +1,240 @@
+/*
+ * Definitions for talking to the PMU.  The PMU is a microcontroller
+ * which controls battery charging and system power on PowerBook 3400
+ * and 2400 models as well as the RTC and various other things.
+ *
+ * Copyright (C) 1998 Paul Mackerras.
+ */
+
+#include <linux/config.h>
+
+#define PMU_DRIVER_VERSION      2
+
+/*
+ * PMU commands
+ */
+#define PMU_POWER_CTRL0         0x10    /* control power of some devices */
+#define PMU_POWER_CTRL          0x11    /* control power of some devices */
+#define PMU_ADB_CMD             0x20    /* send ADB packet */
+#define PMU_ADB_POLL_OFF        0x21    /* disable ADB auto-poll */
+#define PMU_WRITE_NVRAM         0x33    /* write non-volatile RAM */
+#define PMU_READ_NVRAM          0x3b    /* read non-volatile RAM */
+#define PMU_SET_RTC             0x30    /* set real-time clock */
+#define PMU_READ_RTC            0x38    /* read real-time clock */
+#define PMU_SET_VOLBUTTON       0x40    /* set volume up/down position */
+#define PMU_BACKLIGHT_BRIGHT    0x41    /* set backlight brightness */
+#define PMU_GET_VOLBUTTON       0x48    /* get volume up/down position */
+#define PMU_PCEJECT             0x4c    /* eject PC-card from slot */
+#define PMU_BATTERY_STATE       0x6b    /* report battery state etc. */
+#define PMU_SMART_BATTERY_STATE 0x6f    /* report battery state (new way) */
+#define PMU_SET_INTR_MASK       0x70    /* set PMU interrupt mask */
+#define PMU_INT_ACK             0x78    /* read interrupt bits */
+#define PMU_SHUTDOWN            0x7e    /* turn power off */
+#define PMU_CPU_SPEED           0x7d    /* control CPU speed on some models */
+#define PMU_SLEEP               0x7f    /* put CPU to sleep */
+#define PMU_POWER_EVENTS        0x8f    /* Send power-event commands to PMU */
+#define PMU_I2C_CMD             0x9a    /* I2C operations */
+#define PMU_RESET               0xd0    /* reset CPU */
+#define PMU_GET_BRIGHTBUTTON    0xd9    /* report brightness up/down pos */
+#define PMU_GET_COVER           0xdc    /* report cover open/closed */
+#define PMU_SYSTEM_READY        0xdf    /* tell PMU we are awake */
+#define PMU_GET_VERSION         0xea    /* read the PMU version */
+
+/* Bits to use with the PMU_POWER_CTRL0 command */
+#define PMU_POW0_ON             0x80    /* OR this to power ON the device */
+#define PMU_POW0_OFF            0x00    /* leave bit 7 to 0 to power it OFF */
+#define PMU_POW0_HARD_DRIVE     0x04    /* Hard drive power (on wallstreet/lombard ?) */
+
+/* Bits to use with the PMU_POWER_CTRL command */
+#define PMU_POW_ON              0x80    /* OR this to power ON the device */
+#define PMU_POW_OFF             0x00    /* leave bit 7 to 0 to power it OFF */
+#define PMU_POW_BACKLIGHT       0x01    /* backlight power */
+#define PMU_POW_CHARGER         0x02    /* battery charger power */
+#define PMU_POW_IRLED           0x04    /* IR led power (on wallstreet) */
+#define PMU_POW_MEDIABAY        0x08    /* media bay power (wallstreet/lombard ?) */
+
+/* Bits in PMU interrupt and interrupt mask bytes */
+#define PMU_INT_PCEJECT         0x04    /* PC-card eject buttons */
+#define PMU_INT_SNDBRT          0x08    /* sound/brightness up/down buttons */
+#define PMU_INT_ADB             0x10    /* ADB autopoll or reply data */
+#define PMU_INT_BATTERY         0x20    /* Battery state change */
+#define PMU_INT_ENVIRONMENT     0x40    /* Environment interrupts */
+#define PMU_INT_TICK            0x80    /* 1-second tick interrupt */
+
+/* Other bits in PMU interrupt valid when PMU_INT_ADB is set */
+#define PMU_INT_ADB_AUTO        0x04    /* ADB autopoll, when PMU_INT_ADB */
+#define PMU_INT_WAITING_CHARGER 0x01    /* ??? */
+#define PMU_INT_AUTO_SRQ_POLL   0x02    /* ??? */
+
+/* Bits in the environement message (either obtained via PMU_GET_COVER,
+ * or via PMU_INT_ENVIRONMENT on core99 */
+#define PMU_ENV_LID_CLOSED      0x01    /* The lid is closed */
+
+/* I2C related definitions */
+#define PMU_I2C_MODE_SIMPLE     0
+#define PMU_I2C_MODE_STDSUB     1
+#define PMU_I2C_MODE_COMBINED   2
+
+#define PMU_I2C_BUS_STATUS      0
+#define PMU_I2C_BUS_SYSCLK      1
+#define PMU_I2C_BUS_POWER       2
+
+#define PMU_I2C_STATUS_OK       0
+#define PMU_I2C_STATUS_DATAREAD 1
+#define PMU_I2C_STATUS_BUSY     0xfe
+
+
+/* Kind of PMU (model) */
+enum {
+        PMU_UNKNOWN,
+        PMU_OHARE_BASED,        /* 2400, 3400, 3500 (old G3 powerbook) */
+        PMU_HEATHROW_BASED,     /* PowerBook G3 series */
+        PMU_PADDINGTON_BASED,   /* 1999 PowerBook G3 */
+        PMU_KEYLARGO_BASED,     /* Core99 motherboard (PMU99) */
+        PMU_68K_V1,             /* 68K PMU, version 1 */
+        PMU_68K_V2,             /* 68K PMU, version 2 */
+};
+
+/* PMU PMU_POWER_EVENTS commands */
+enum {
+        PMU_PWR_GET_POWERUP_EVENTS      = 0x00,
+        PMU_PWR_SET_POWERUP_EVENTS      = 0x01,
+        PMU_PWR_CLR_POWERUP_EVENTS      = 0x02,
+        PMU_PWR_GET_WAKEUP_EVENTS       = 0x03,
+        PMU_PWR_SET_WAKEUP_EVENTS       = 0x04,
+        PMU_PWR_CLR_WAKEUP_EVENTS       = 0x05,
+};
+
+/* Power events wakeup bits */
+enum {
+        PMU_PWR_WAKEUP_KEY              = 0x01, /* Wake on key press */
+        PMU_PWR_WAKEUP_AC_INSERT        = 0x02, /* Wake on AC adapter plug */
+        PMU_PWR_WAKEUP_AC_CHANGE        = 0x04,
+        PMU_PWR_WAKEUP_LID_OPEN         = 0x08,
+        PMU_PWR_WAKEUP_RING             = 0x10,
+};
+        
+/*
+ * Ioctl commands for the /dev/pmu device
+ */
+#include <linux/ioctl.h>
+
+/* no param */
+#define PMU_IOC_SLEEP           _IO('B', 0)
+/* out param: u32*      backlight value: 0 to 15 */
+#define PMU_IOC_GET_BACKLIGHT   _IOR('B', 1, size_t)
+/* in param: u32        backlight value: 0 to 15 */
+#define PMU_IOC_SET_BACKLIGHT   _IOW('B', 2, size_t)
+/* out param: u32*      PMU model */
+#define PMU_IOC_GET_MODEL       _IOR('B', 3, size_t)
+/* out param: u32*      has_adb: 0 or 1 */
+#define PMU_IOC_HAS_ADB         _IOR('B', 4, size_t) 
+/* out param: u32*      can_sleep: 0 or 1 */
+#define PMU_IOC_CAN_SLEEP       _IOR('B', 5, size_t) 
+/* no param, but historically was _IOR('B', 6, 0), meaning 4 bytes */
+#define PMU_IOC_GRAB_BACKLIGHT  _IOR('B', 6, size_t) 
+
+#ifdef __KERNEL__
+
+extern int find_via_pmu(void);
+
+extern int pmu_request(struct adb_request *req,
+                void (*done)(struct adb_request *), int nbytes, ...);
+
+extern void pmu_poll(void);
+extern void pmu_poll_adb(void); /* For use by xmon */
+extern void pmu_wait_complete(struct adb_request *req);
+
+/* For use before switching interrupts off for a long time;
+ * warning: not stackable
+ */
+extern void pmu_suspend(void);
+extern void pmu_resume(void);
+
+extern void pmu_enable_irled(int on);
+
+extern void pmu_restart(void);
+extern void pmu_shutdown(void);
+extern void pmu_unlock(void);
+
+extern int pmu_present(void);
+extern int pmu_get_model(void);
+
+extern int pmu_i2c_combined_read(int bus, int addr, int subaddr,  u8* data, int len);
+extern int pmu_i2c_stdsub_write(int bus, int addr, int subaddr,  u8* data, int len);
+extern int pmu_i2c_simple_read(int bus, int addr,  u8* data, int len);
+extern int pmu_i2c_simple_write(int bus, int addr,  u8* data, int len);
+
+
+#ifdef CONFIG_PMAC_PBOOK
+/*
+ * Stuff for putting the powerbook to sleep and waking it again.
+ *
+ */
+#include <linux/list.h>
+
+struct pmu_sleep_notifier
+{
+        int (*notifier_call)(struct pmu_sleep_notifier *self, int when);
+        int priority;
+        struct list_head list;
+};
+
+/* Code values for calling sleep/wakeup handlers
+ *
+ * Note: If a sleep request got cancelled, all drivers will get
+ * the PBOOK_SLEEP_REJECT, even those who didn't get the PBOOK_SLEEP_REQUEST.
+ */
+#define PBOOK_SLEEP_REQUEST     1
+#define PBOOK_SLEEP_NOW         2
+#define PBOOK_SLEEP_REJECT      3
+#define PBOOK_WAKE              4
+
+/* Result codes returned by the notifiers */
+#define PBOOK_SLEEP_OK          0
+#define PBOOK_SLEEP_REFUSE      -1
+
+/* priority levels in notifiers */
+#define SLEEP_LEVEL_VIDEO       100     /* Video driver (first wake) */
+#define SLEEP_LEVEL_MEDIABAY    90      /* Media bay driver */
+#define SLEEP_LEVEL_BLOCK       80      /* IDE, SCSI */
+#define SLEEP_LEVEL_NET         70      /* bmac, gmac */
+#define SLEEP_LEVEL_MISC        60      /* Anything else */
+#define SLEEP_LEVEL_USERLAND    55      /* Reserved for apm_emu */
+#define SLEEP_LEVEL_ADB         50      /* ADB (async) */
+#define SLEEP_LEVEL_SOUND       40      /* Sound driver (blocking) */
+
+/* special register notifier functions */
+int pmu_register_sleep_notifier(struct pmu_sleep_notifier* notifier);
+int pmu_unregister_sleep_notifier(struct pmu_sleep_notifier* notifier);
+
+#define PMU_MAX_BATTERIES       2
+
+/* values for pmu_power_flags */
+#define PMU_PWR_AC_PRESENT      0x00000001
+
+/* values for pmu_battery_info.flags */
+#define PMU_BATT_PRESENT        0x00000001
+#define PMU_BATT_CHARGING       0x00000002
+#define PMU_BATT_TYPE_MASK      0x000000f0
+#define PMU_BATT_TYPE_SMART     0x00000010 /* Smart battery */
+#define PMU_BATT_TYPE_HOOPER    0x00000020 /* 3400/3500 */
+#define PMU_BATT_TYPE_COMET     0x00000030 /* 2400 */
+
+struct pmu_battery_info
+{
+        unsigned int    flags;
+        unsigned int    charge;         /* current charge */
+        unsigned int    max_charge;     /* maximum charge */
+        signed int      amperage;       /* current, positive if charging */
+        unsigned int    voltage;        /* voltage */
+        unsigned int    time_remaining; /* remaining time */
+};
+
+extern int pmu_battery_count;
+extern struct pmu_battery_info pmu_batteries[PMU_MAX_BATTERIES];
+extern unsigned int pmu_power_flags;
+
+#endif /* CONFIG_PMAC_PBOOK */
+
+#endif  /* __KERNEL__ */