Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 3147 insertions, 0 deletions

diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
new file mode 100644
index 000000000000..cea1e758eb46
--- /dev/null
+++ b/drivers/macintosh/via-pmu.c
@@ -0,0 +1,3147 @@
+/*
+ * Device driver for the via-pmu on Apple Powermacs.
+ *
+ * The VIA (versatile interface adapter) interfaces to the PMU,
+ * a 6805 microprocessor core whose primary function is to control
+ * battery charging and system power on the PowerBook 3400 and 2400.
+ * The PMU also controls the ADB (Apple Desktop Bus) which connects
+ * to the keyboard and mouse, as well as the non-volatile RAM
+ * and the RTC (real time clock) chip.
+ *
+ * Copyright (C) 1998 Paul Mackerras and Fabio Riccardi.
+ * Copyright (C) 2001-2002 Benjamin Herrenschmidt
+ *
+ * THIS DRIVER IS BECOMING A TOTAL MESS !
+ *  - Cleanup atomically disabling reply to PMU events after
+ *    a sleep or a freq. switch
+ *  - Move sleep code out of here to pmac_pm, merge into new
+ *    common PM infrastructure
+ *  - Move backlight code out as well
+ *  - Save/Restore PCI space properly
+ *
+ */
+#include <stdarg.h>
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/miscdevice.h>
+#include <linux/blkdev.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/adb.h>
+#include <linux/pmu.h>
+#include <linux/cuda.h>
+#include <linux/smp_lock.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/pm.h>
+#include <linux/proc_fs.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/sysdev.h>
+#include <linux/suspend.h>
+#include <linux/syscalls.h>
+#include <linux/cpu.h>
+#include <asm/prom.h>
+#include <asm/machdep.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/system.h>
+#include <asm/sections.h>
+#include <asm/irq.h>
+#include <asm/pmac_feature.h>
+#include <asm/uaccess.h>
+#include <asm/mmu_context.h>
+#include <asm/cputable.h>
+#include <asm/time.h>
+#ifdef CONFIG_PMAC_BACKLIGHT
+#include <asm/backlight.h>
+#endif
+
+/* Some compile options */
+#undef SUSPEND_USES_PMU
+#define DEBUG_SLEEP
+#undef HACKED_PCI_SAVE
+
+/* Misc minor number allocated for /dev/pmu */
+#define PMU_MINOR		154
+
+/* How many iterations between battery polls */
+#define BATTERY_POLLING_COUNT	2
+
+static volatile unsigned char __iomem *via;
+
+/* VIA registers - spaced 0x200 bytes apart */
+#define RS		0x200		/* skip between registers */
+#define B		0		/* B-side data */
+#define A		RS		/* A-side data */
+#define DIRB		(2*RS)		/* B-side direction (1=output) */
+#define DIRA		(3*RS)		/* A-side direction (1=output) */
+#define T1CL		(4*RS)		/* Timer 1 ctr/latch (low 8 bits) */
+#define T1CH		(5*RS)		/* Timer 1 counter (high 8 bits) */
+#define T1LL		(6*RS)		/* Timer 1 latch (low 8 bits) */
+#define T1LH		(7*RS)		/* Timer 1 latch (high 8 bits) */
+#define T2CL		(8*RS)		/* Timer 2 ctr/latch (low 8 bits) */
+#define T2CH		(9*RS)		/* Timer 2 counter (high 8 bits) */
+#define SR		(10*RS)		/* Shift register */
+#define ACR		(11*RS)		/* Auxiliary control register */
+#define PCR		(12*RS)		/* Peripheral control register */
+#define IFR		(13*RS)		/* Interrupt flag register */
+#define IER		(14*RS)		/* Interrupt enable register */
+#define ANH		(15*RS)		/* A-side data, no handshake */
+
+/* Bits in B data register: both active low */
+#define TACK		0x08		/* Transfer acknowledge (input) */
+#define TREQ		0x10		/* Transfer request (output) */
+
+/* Bits in ACR */
+#define SR_CTRL		0x1c		/* Shift register control bits */
+#define SR_EXT		0x0c		/* Shift on external clock */
+#define SR_OUT		0x10		/* Shift out if 1 */
+
+/* Bits in IFR and IER */
+#define IER_SET		0x80		/* set bits in IER */
+#define IER_CLR		0		/* clear bits in IER */
+#define SR_INT		0x04		/* Shift register full/empty */
+#define CB2_INT		0x08
+#define CB1_INT		0x10		/* transition on CB1 input */
+
+static volatile enum pmu_state {
+	idle,
+	sending,
+	intack,
+	reading,
+	reading_intr,
+	locked,
+} pmu_state;
+
+static volatile enum int_data_state {
+	int_data_empty,
+	int_data_fill,
+	int_data_ready,
+	int_data_flush
+} int_data_state[2] = { int_data_empty, int_data_empty };
+
+static struct adb_request *current_req;
+static struct adb_request *last_req;
+static struct adb_request *req_awaiting_reply;
+static unsigned char interrupt_data[2][32];
+static int interrupt_data_len[2];
+static int int_data_last;
+static unsigned char *reply_ptr;
+static int data_index;
+static int data_len;
+static volatile int adb_int_pending;
+static volatile int disable_poll;
+static struct adb_request bright_req_1, bright_req_2;
+static struct device_node *vias;
+static int pmu_kind = PMU_UNKNOWN;
+static int pmu_fully_inited = 0;
+static int pmu_has_adb;
+static unsigned char __iomem *gpio_reg = NULL;
+static int gpio_irq = -1;
+static int gpio_irq_enabled = -1;
+static volatile int pmu_suspended = 0;
+static spinlock_t pmu_lock;
+static u8 pmu_intr_mask;
+static int pmu_version;
+static int drop_interrupts;
+#ifdef CONFIG_PMAC_PBOOK
+static int option_lid_wakeup = 1;
+static int sleep_in_progress;
+#endif /* CONFIG_PMAC_PBOOK */
+static unsigned long async_req_locks;
+static unsigned int pmu_irq_stats[11];
+
+static struct proc_dir_entry *proc_pmu_root;
+static struct proc_dir_entry *proc_pmu_info;
+static struct proc_dir_entry *proc_pmu_irqstats;
+static struct proc_dir_entry *proc_pmu_options;
+static int option_server_mode;
+
+#ifdef CONFIG_PMAC_PBOOK
+int pmu_battery_count;
+int pmu_cur_battery;
+unsigned int pmu_power_flags;
+struct pmu_battery_info pmu_batteries[PMU_MAX_BATTERIES];
+static int query_batt_timer = BATTERY_POLLING_COUNT;
+static struct adb_request batt_req;
+static struct proc_dir_entry *proc_pmu_batt[PMU_MAX_BATTERIES];
+#endif /* CONFIG_PMAC_PBOOK */
+
+#if defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_PMAC_BACKLIGHT)
+extern int disable_kernel_backlight;
+#endif /* defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_PMAC_BACKLIGHT) */
+
+int __fake_sleep;
+int asleep;
+struct notifier_block *sleep_notifier_list;
+
+#ifdef CONFIG_ADB
+static int adb_dev_map = 0;
+static int pmu_adb_flags;
+
+static int pmu_probe(void);
+static int pmu_init(void);
+static int pmu_send_request(struct adb_request *req, int sync);
+static int pmu_adb_autopoll(int devs);
+static int pmu_adb_reset_bus(void);
+#endif /* CONFIG_ADB */
+
+static int init_pmu(void);
+static int pmu_queue_request(struct adb_request *req);
+static void pmu_start(void);
+static irqreturn_t via_pmu_interrupt(int irq, void *arg, struct pt_regs *regs);
+static irqreturn_t gpio1_interrupt(int irq, void *arg, struct pt_regs *regs);
+static int proc_get_info(char *page, char **start, off_t off,
+			  int count, int *eof, void *data);
+static int proc_get_irqstats(char *page, char **start, off_t off,
+			  int count, int *eof, void *data);
+#ifdef CONFIG_PMAC_BACKLIGHT
+static int pmu_set_backlight_level(int level, void* data);
+static int pmu_set_backlight_enable(int on, int level, void* data);
+#endif /* CONFIG_PMAC_BACKLIGHT */
+#ifdef CONFIG_PMAC_PBOOK
+static void pmu_pass_intr(unsigned char *data, int len);
+static int proc_get_batt(char *page, char **start, off_t off,
+			int count, int *eof, void *data);
+#endif /* CONFIG_PMAC_PBOOK */
+static int proc_read_options(char *page, char **start, off_t off,
+			int count, int *eof, void *data);
+static int proc_write_options(struct file *file, const char __user *buffer,
+			unsigned long count, void *data);
+
+#ifdef CONFIG_ADB
+struct adb_driver via_pmu_driver = {
+	"PMU",
+	pmu_probe,
+	pmu_init,
+	pmu_send_request,
+	pmu_adb_autopoll,
+	pmu_poll_adb,
+	pmu_adb_reset_bus
+};
+#endif /* CONFIG_ADB */
+
+extern void low_sleep_handler(void);
+extern void enable_kernel_altivec(void);
+extern void enable_kernel_fp(void);
+
+#ifdef DEBUG_SLEEP
+int pmu_polled_request(struct adb_request *req);
+int pmu_wink(struct adb_request *req);
+#endif
+
+/*
+ * This table indicates for each PMU opcode:
+ * - the number of data bytes to be sent with the command, or -1
+ *   if a length byte should be sent,
+ * - the number of response bytes which the PMU will return, or
+ *   -1 if it will send a length byte.
+ */
+static const s8 pmu_data_len[256][2] __openfirmwaredata = {
+/*	   0	   1	   2	   3	   4	   5	   6	   7  */
+/*00*/	{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},
+/*08*/	{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},
+/*10*/	{ 1, 0},{ 1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},
+/*18*/	{ 0, 1},{ 0, 1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{ 0, 0},
+/*20*/	{-1, 0},{ 0, 0},{ 2, 0},{ 1, 0},{ 1, 0},{-1, 0},{-1, 0},{-1, 0},
+/*28*/	{ 0,-1},{ 0,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{ 0,-1},
+/*30*/	{ 4, 0},{20, 0},{-1, 0},{ 3, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},
+/*38*/	{ 0, 4},{ 0,20},{ 2,-1},{ 2, 1},{ 3,-1},{-1,-1},{-1,-1},{ 4, 0},
+/*40*/	{ 1, 0},{ 1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},
+/*48*/	{ 0, 1},{ 0, 1},{-1,-1},{ 1, 0},{ 1, 0},{-1,-1},{-1,-1},{-1,-1},
+/*50*/	{ 1, 0},{ 0, 0},{ 2, 0},{ 2, 0},{-1, 0},{ 1, 0},{ 3, 0},{ 1, 0},
+/*58*/	{ 0, 1},{ 1, 0},{ 0, 2},{ 0, 2},{ 0,-1},{-1,-1},{-1,-1},{-1,-1},
+/*60*/	{ 2, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},
+/*68*/	{ 0, 3},{ 0, 3},{ 0, 2},{ 0, 8},{ 0,-1},{ 0,-1},{-1,-1},{-1,-1},
+/*70*/	{ 1, 0},{ 1, 0},{ 1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},
+/*78*/	{ 0,-1},{ 0,-1},{-1,-1},{-1,-1},{-1,-1},{ 5, 1},{ 4, 1},{ 4, 1},
+/*80*/	{ 4, 0},{-1, 0},{ 0, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},
+/*88*/	{ 0, 5},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},
+/*90*/	{ 1, 0},{ 2, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},
+/*98*/	{ 0, 1},{ 0, 1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},
+/*a0*/	{ 2, 0},{ 2, 0},{ 2, 0},{ 4, 0},{-1, 0},{ 0, 0},{-1, 0},{-1, 0},
+/*a8*/	{ 1, 1},{ 1, 0},{ 3, 0},{ 2, 0},{-1,-1},{-1,-1},{-1,-1},{-1,-1},
+/*b0*/	{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},
+/*b8*/	{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},
+/*c0*/	{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},
+/*c8*/	{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},
+/*d0*/	{ 0, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},
+/*d8*/	{ 1, 1},{ 1, 1},{-1,-1},{-1,-1},{ 0, 1},{ 0,-1},{-1,-1},{-1,-1},
+/*e0*/	{-1, 0},{ 4, 0},{ 0, 1},{-1, 0},{-1, 0},{ 4, 0},{-1, 0},{-1, 0},
+/*e8*/	{ 3,-1},{-1,-1},{ 0, 1},{-1,-1},{ 0,-1},{-1,-1},{-1,-1},{ 0, 0},
+/*f0*/	{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},
+/*f8*/	{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},
+};
+
+static char *pbook_type[] = {
+	"Unknown PowerBook",
+	"PowerBook 2400/3400/3500(G3)",
+	"PowerBook G3 Series",
+	"1999 PowerBook G3",
+	"Core99"
+};
+
+#ifdef CONFIG_PMAC_BACKLIGHT
+static struct backlight_controller pmu_backlight_controller = {
+	pmu_set_backlight_enable,
+	pmu_set_backlight_level
+};
+#endif /* CONFIG_PMAC_BACKLIGHT */
+
+int __openfirmware
+find_via_pmu(void)
+{
+	if (via != 0)
+		return 1;
+	vias = find_devices("via-pmu");
+	if (vias == 0)
+		return 0;
+	if (vias->next != 0)
+		printk(KERN_WARNING "Warning: only using 1st via-pmu\n");
+
+	if (vias->n_addrs < 1 || vias->n_intrs < 1) {
+		printk(KERN_ERR "via-pmu: %d addresses, %d interrupts!\n",
+		       vias->n_addrs, vias->n_intrs);
+		if (vias->n_addrs < 1 || vias->n_intrs < 1)
+			return 0;
+	}
+
+	spin_lock_init(&pmu_lock);
+
+	pmu_has_adb = 1;
+
+	pmu_intr_mask =	PMU_INT_PCEJECT |
+			PMU_INT_SNDBRT |
+			PMU_INT_ADB |
+			PMU_INT_TICK;
+	
+	if (vias->parent->name && ((strcmp(vias->parent->name, "ohare") == 0)
+	    || device_is_compatible(vias->parent, "ohare")))
+		pmu_kind = PMU_OHARE_BASED;
+	else if (device_is_compatible(vias->parent, "paddington"))
+		pmu_kind = PMU_PADDINGTON_BASED;
+	else if (device_is_compatible(vias->parent, "heathrow"))
+		pmu_kind = PMU_HEATHROW_BASED;
+	else if (device_is_compatible(vias->parent, "Keylargo")
+		 || device_is_compatible(vias->parent, "K2-Keylargo")) {
+		struct device_node *gpio, *gpiop;
+
+		pmu_kind = PMU_KEYLARGO_BASED;
+		pmu_has_adb = (find_type_devices("adb") != NULL);
+		pmu_intr_mask =	PMU_INT_PCEJECT |
+				PMU_INT_SNDBRT |
+				PMU_INT_ADB |
+				PMU_INT_TICK |
+				PMU_INT_ENVIRONMENT;
+		
+		gpiop = find_devices("gpio");
+		if (gpiop && gpiop->n_addrs) {
+			gpio_reg = ioremap(gpiop->addrs->address, 0x10);
+			gpio = find_devices("extint-gpio1");
+			if (gpio == NULL)
+				gpio = find_devices("pmu-interrupt");
+			if (gpio && gpio->parent == gpiop && gpio->n_intrs)
+				gpio_irq = gpio->intrs[0].line;
+		}
+	} else
+		pmu_kind = PMU_UNKNOWN;
+
+	via = ioremap(vias->addrs->address, 0x2000);
+	
+	out_8(&via[IER], IER_CLR | 0x7f);	/* disable all intrs */
+	out_8(&via[IFR], 0x7f);			/* clear IFR */
+
+	pmu_state = idle;
+
+	if (!init_pmu()) {
+		via = NULL;
+		return 0;
+	}
+
+	printk(KERN_INFO "PMU driver %d initialized for %s, firmware: %02x\n",
+	       PMU_DRIVER_VERSION, pbook_type[pmu_kind], pmu_version);
+	       
+	sys_ctrler = SYS_CTRLER_PMU;
+	
+	return 1;
+}
+
+#ifdef CONFIG_ADB
+static int __openfirmware
+pmu_probe(void)
+{
+	return vias == NULL? -ENODEV: 0;
+}
+
+static int __init
+pmu_init(void)
+{
+	if (vias == NULL)
+		return -ENODEV;
+	return 0;
+}
+#endif /* CONFIG_ADB */
+
+/*
+ * We can't wait until pmu_init gets called, that happens too late.
+ * It happens after IDE and SCSI initialization, which can take a few
+ * seconds, and by that time the PMU could have given up on us and
+ * turned us off.
+ * Thus this is called with arch_initcall rather than device_initcall.
+ */
+static int __init via_pmu_start(void)
+{
+	if (vias == NULL)
+		return -ENODEV;
+
+	bright_req_1.complete = 1;
+	bright_req_2.complete = 1;
+#ifdef CONFIG_PMAC_PBOOK
+	batt_req.complete = 1;
+#endif
+
+	if (request_irq(vias->intrs[0].line, via_pmu_interrupt, 0, "VIA-PMU",
+			(void *)0)) {
+		printk(KERN_ERR "VIA-PMU: can't get irq %d\n",
+		       vias->intrs[0].line);
+		return -EAGAIN;
+	}
+
+	if (pmu_kind == PMU_KEYLARGO_BASED && gpio_irq != -1) {
+		if (request_irq(gpio_irq, gpio1_interrupt, 0, "GPIO1 ADB", (void *)0))
+			printk(KERN_ERR "pmu: can't get irq %d (GPIO1)\n", gpio_irq);
+		gpio_irq_enabled = 1;
+	}
+
+	/* Enable interrupts */
+	out_8(&via[IER], IER_SET | SR_INT | CB1_INT);
+
+	pmu_fully_inited = 1;
+
+	/* Make sure PMU settle down before continuing. This is _very_ important
+	 * since the IDE probe may shut interrupts down for quite a bit of time. If
+	 * a PMU communication is pending while this happens, the PMU may timeout
+	 * Not that on Core99 machines, the PMU keeps sending us environement
+	 * messages, we should find a way to either fix IDE or make it call
+	 * pmu_suspend() before masking interrupts. This can also happens while
+	 * scolling with some fbdevs.
+	 */
+	do {
+		pmu_poll();
+	} while (pmu_state != idle);
+
+	return 0;
+}
+
+arch_initcall(via_pmu_start);
+
+/*
+ * This has to be done after pci_init, which is a subsys_initcall.
+ */
+static int __init via_pmu_dev_init(void)
+{
+	if (vias == NULL)
+		return -ENODEV;
+
+#ifndef CONFIG_PPC64
+	request_OF_resource(vias, 0, NULL);
+#endif
+#ifdef CONFIG_PMAC_BACKLIGHT
+	/* Enable backlight */
+	register_backlight_controller(&pmu_backlight_controller, NULL, "pmu");
+#endif /* CONFIG_PMAC_BACKLIGHT */
+
+#ifdef CONFIG_PMAC_PBOOK
+  	if (machine_is_compatible("AAPL,3400/2400") ||
+  		machine_is_compatible("AAPL,3500")) {
+		int mb = pmac_call_feature(PMAC_FTR_GET_MB_INFO,
+			NULL, PMAC_MB_INFO_MODEL, 0);
+		pmu_battery_count = 1;
+		if (mb == PMAC_TYPE_COMET)
+			pmu_batteries[0].flags |= PMU_BATT_TYPE_COMET;
+		else
+			pmu_batteries[0].flags |= PMU_BATT_TYPE_HOOPER;
+	} else if (machine_is_compatible("AAPL,PowerBook1998") ||
+		machine_is_compatible("PowerBook1,1")) {
+		pmu_battery_count = 2;
+		pmu_batteries[0].flags |= PMU_BATT_TYPE_SMART;
+		pmu_batteries[1].flags |= PMU_BATT_TYPE_SMART;
+	} else {
+		struct device_node* prim = find_devices("power-mgt");
+		u32 *prim_info = NULL;
+		if (prim)
+			prim_info = (u32 *)get_property(prim, "prim-info", NULL);
+		if (prim_info) {
+			/* Other stuffs here yet unknown */
+			pmu_battery_count = (prim_info[6] >> 16) & 0xff;
+			pmu_batteries[0].flags |= PMU_BATT_TYPE_SMART;
+			if (pmu_battery_count > 1)
+				pmu_batteries[1].flags |= PMU_BATT_TYPE_SMART;
+		}
+	}
+#endif /* CONFIG_PMAC_PBOOK */
+	/* Create /proc/pmu */
+	proc_pmu_root = proc_mkdir("pmu", NULL);
+	if (proc_pmu_root) {
+#ifdef CONFIG_PMAC_PBOOK
+		int i;
+
+		for (i=0; i<pmu_battery_count; i++) {
+			char title[16];
+			sprintf(title, "battery_%d", i);
+			proc_pmu_batt[i] = create_proc_read_entry(title, 0, proc_pmu_root,
+						proc_get_batt, (void *)i);
+		}
+#endif /* CONFIG_PMAC_PBOOK */
+
+		proc_pmu_info = create_proc_read_entry("info", 0, proc_pmu_root,
+					proc_get_info, NULL);
+		proc_pmu_irqstats = create_proc_read_entry("interrupts", 0, proc_pmu_root,
+					proc_get_irqstats, NULL);
+		proc_pmu_options = create_proc_entry("options", 0600, proc_pmu_root);
+		if (proc_pmu_options) {
+			proc_pmu_options->nlink = 1;
+			proc_pmu_options->read_proc = proc_read_options;
+			proc_pmu_options->write_proc = proc_write_options;
+		}
+	}
+	return 0;
+}
+
+device_initcall(via_pmu_dev_init);
+
+static int __openfirmware
+init_pmu(void)
+{
+	int timeout;
+	struct adb_request req;
+
+	out_8(&via[B], via[B] | TREQ);			/* negate TREQ */
+	out_8(&via[DIRB], (via[DIRB] | TREQ) & ~TACK);	/* TACK in, TREQ out */
+
+	pmu_request(&req, NULL, 2, PMU_SET_INTR_MASK, pmu_intr_mask);
+	timeout =  100000;
+	while (!req.complete) {
+		if (--timeout < 0) {
+			printk(KERN_ERR "init_pmu: no response from PMU\n");
+			return 0;
+		}
+		udelay(10);
+		pmu_poll();
+	}
+
+	/* ack all pending interrupts */
+	timeout = 100000;
+	interrupt_data[0][0] = 1;
+	while (interrupt_data[0][0] || pmu_state != idle) {
+		if (--timeout < 0) {
+			printk(KERN_ERR "init_pmu: timed out acking intrs\n");
+			return 0;
+		}
+		if (pmu_state == idle)
+			adb_int_pending = 1;
+		via_pmu_interrupt(0, NULL, NULL);
+		udelay(10);
+	}
+
+	/* Tell PMU we are ready.  */
+	if (pmu_kind == PMU_KEYLARGO_BASED) {
+		pmu_request(&req, NULL, 2, PMU_SYSTEM_READY, 2);
+		while (!req.complete)
+			pmu_poll();
+	}
+
+	/* Read PMU version */
+	pmu_request(&req, NULL, 1, PMU_GET_VERSION);
+	pmu_wait_complete(&req);
+	if (req.reply_len > 0)
+		pmu_version = req.reply[0];
+	
+	/* Read server mode setting */
+	if (pmu_kind == PMU_KEYLARGO_BASED) {
+		pmu_request(&req, NULL, 2, PMU_POWER_EVENTS,
+			    PMU_PWR_GET_POWERUP_EVENTS);
+		pmu_wait_complete(&req);
+		if (req.reply_len == 2) {
+			if (req.reply[1] & PMU_PWR_WAKEUP_AC_INSERT)
+				option_server_mode = 1;
+			printk(KERN_INFO "via-pmu: Server Mode is %s\n",
+			       option_server_mode ? "enabled" : "disabled");
+		}
+	}
+	return 1;
+}
+
+int
+pmu_get_model(void)
+{
+	return pmu_kind;
+}
+
+#ifndef CONFIG_PPC64
+static inline void wakeup_decrementer(void)
+{
+	set_dec(tb_ticks_per_jiffy);
+	/* No currently-supported powerbook has a 601,
+	 * so use get_tbl, not native
+	 */
+	last_jiffy_stamp(0) = tb_last_stamp = get_tbl();
+}
+#endif
+
+static void pmu_set_server_mode(int server_mode)
+{
+	struct adb_request req;
+
+	if (pmu_kind != PMU_KEYLARGO_BASED)
+		return;
+
+	option_server_mode = server_mode;
+	pmu_request(&req, NULL, 2, PMU_POWER_EVENTS, PMU_PWR_GET_POWERUP_EVENTS);
+	pmu_wait_complete(&req);
+	if (req.reply_len < 2)
+		return;
+	if (server_mode)
+		pmu_request(&req, NULL, 4, PMU_POWER_EVENTS,
+			    PMU_PWR_SET_POWERUP_EVENTS,
+			    req.reply[0], PMU_PWR_WAKEUP_AC_INSERT); 
+	else
+		pmu_request(&req, NULL, 4, PMU_POWER_EVENTS,
+			    PMU_PWR_CLR_POWERUP_EVENTS,
+			    req.reply[0], PMU_PWR_WAKEUP_AC_INSERT); 
+	pmu_wait_complete(&req);
+}
+
+#ifdef CONFIG_PMAC_PBOOK
+
+/* This new version of the code for 2400/3400/3500 powerbooks
+ * is inspired from the implementation in gkrellm-pmu
+ */
+static void __pmac
+done_battery_state_ohare(struct adb_request* req)
+{
+	/* format:
+	 *  [0]    :  flags
+	 *    0x01 :  AC indicator
+	 *    0x02 :  charging
+	 *    0x04 :  battery exist
+	 *    0x08 :  
+	 *    0x10 :  
+	 *    0x20 :  full charged
+	 *    0x40 :  pcharge reset
+	 *    0x80 :  battery exist
+	 *
+	 *  [1][2] :  battery voltage
+	 *  [3]    :  CPU temperature
+	 *  [4]    :  battery temperature
+	 *  [5]    :  current
+	 *  [6][7] :  pcharge
+	 *              --tkoba
+	 */
+	unsigned int bat_flags = PMU_BATT_TYPE_HOOPER;
+	long pcharge, charge, vb, vmax, lmax;
+	long vmax_charging, vmax_charged;
+	long amperage, voltage, time, max;
+	int mb = pmac_call_feature(PMAC_FTR_GET_MB_INFO,
+			NULL, PMAC_MB_INFO_MODEL, 0);
+
+	if (req->reply[0] & 0x01)
+		pmu_power_flags |= PMU_PWR_AC_PRESENT;
+	else
+		pmu_power_flags &= ~PMU_PWR_AC_PRESENT;
+	
+	if (mb == PMAC_TYPE_COMET) {
+		vmax_charged = 189;
+		vmax_charging = 213;
+		lmax = 6500;
+	} else {
+		vmax_charged = 330;
+		vmax_charging = 330;
+		lmax = 6500;
+	}
+	vmax = vmax_charged;
+
+	/* If battery installed */
+	if (req->reply[0] & 0x04) {
+		bat_flags |= PMU_BATT_PRESENT;
+		if (req->reply[0] & 0x02)
+			bat_flags |= PMU_BATT_CHARGING;
+		vb = (req->reply[1] << 8) | req->reply[2];
+		voltage = (vb * 265 + 72665) / 10;
+		amperage = req->reply[5];
+		if ((req->reply[0] & 0x01) == 0) {
+			if (amperage > 200)
+				vb += ((amperage - 200) * 15)/100;
+		} else if (req->reply[0] & 0x02) {
+			vb = (vb * 97) / 100;
+			vmax = vmax_charging;
+		}
+		charge = (100 * vb) / vmax;
+		if (req->reply[0] & 0x40) {
+			pcharge = (req->reply[6] << 8) + req->reply[7];
+			if (pcharge > lmax)
+				pcharge = lmax;
+			pcharge *= 100;
+			pcharge = 100 - pcharge / lmax;
+			if (pcharge < charge)
+				charge = pcharge;
+		}
+		if (amperage > 0)
+			time = (charge * 16440) / amperage;
+		else
+			time = 0;
+		max = 100;
+		amperage = -amperage;
+	} else
+		charge = max = amperage = voltage = time = 0;
+
+	pmu_batteries[pmu_cur_battery].flags = bat_flags;
+	pmu_batteries[pmu_cur_battery].charge = charge;
+	pmu_batteries[pmu_cur_battery].max_charge = max;
+	pmu_batteries[pmu_cur_battery].amperage = amperage;
+	pmu_batteries[pmu_cur_battery].voltage = voltage;
+	pmu_batteries[pmu_cur_battery].time_remaining = time;
+
+	clear_bit(0, &async_req_locks);
+}
+
+static void __pmac
+done_battery_state_smart(struct adb_request* req)
+{
+	/* format:
+	 *  [0] : format of this structure (known: 3,4,5)
+	 *  [1] : flags
+	 *  
+	 *  format 3 & 4:
+	 *  
+	 *  [2] : charge
+	 *  [3] : max charge
+	 *  [4] : current
+	 *  [5] : voltage
+	 *  
+	 *  format 5:
+	 *  
+	 *  [2][3] : charge
+	 *  [4][5] : max charge
+	 *  [6][7] : current
+	 *  [8][9] : voltage
+	 */
+	 
+	unsigned int bat_flags = PMU_BATT_TYPE_SMART;
+	int amperage;
+	unsigned int capa, max, voltage;
+	
+	if (req->reply[1] & 0x01)
+		pmu_power_flags |= PMU_PWR_AC_PRESENT;
+	else
+		pmu_power_flags &= ~PMU_PWR_AC_PRESENT;
+
+
+	capa = max = amperage = voltage = 0;
+	
+	if (req->reply[1] & 0x04) {
+		bat_flags |= PMU_BATT_PRESENT;
+		switch(req->reply[0]) {
+			case 3:
+			case 4: capa = req->reply[2];
+				max = req->reply[3];
+				amperage = *((signed char *)&req->reply[4]);
+				voltage = req->reply[5];
+				break;
+			case 5: capa = (req->reply[2] << 8) | req->reply[3];
+				max = (req->reply[4] << 8) | req->reply[5];
+				amperage = *((signed short *)&req->reply[6]);
+				voltage = (req->reply[8] << 8) | req->reply[9];
+				break;
+			default:
+				printk(KERN_WARNING "pmu.c : unrecognized battery info, len: %d, %02x %02x %02x %02x\n",
+					req->reply_len, req->reply[0], req->reply[1], req->reply[2], req->reply[3]);
+				break;
+		}
+	}
+
+	if ((req->reply[1] & 0x01) && (amperage > 0))
+		bat_flags |= PMU_BATT_CHARGING;
+
+	pmu_batteries[pmu_cur_battery].flags = bat_flags;
+	pmu_batteries[pmu_cur_battery].charge = capa;
+	pmu_batteries[pmu_cur_battery].max_charge = max;
+	pmu_batteries[pmu_cur_battery].amperage = amperage;
+	pmu_batteries[pmu_cur_battery].voltage = voltage;
+	if (amperage) {
+		if ((req->reply[1] & 0x01) && (amperage > 0))
+			pmu_batteries[pmu_cur_battery].time_remaining
+				= ((max-capa) * 3600) / amperage;
+		else
+			pmu_batteries[pmu_cur_battery].time_remaining
+				= (capa * 3600) / (-amperage);
+	} else
+		pmu_batteries[pmu_cur_battery].time_remaining = 0;
+
+	pmu_cur_battery = (pmu_cur_battery + 1) % pmu_battery_count;
+
+	clear_bit(0, &async_req_locks);
+}
+
+static void __pmac
+query_battery_state(void)
+{
+	if (test_and_set_bit(0, &async_req_locks))
+		return;
+	if (pmu_kind == PMU_OHARE_BASED)
+		pmu_request(&batt_req, done_battery_state_ohare,
+			1, PMU_BATTERY_STATE);
+	else
+		pmu_request(&batt_req, done_battery_state_smart,
+			2, PMU_SMART_BATTERY_STATE, pmu_cur_battery+1);
+}
+
+#endif /* CONFIG_PMAC_PBOOK */
+
+static int __pmac
+proc_get_info(char *page, char **start, off_t off,
+		int count, int *eof, void *data)
+{
+	char* p = page;
+
+	p += sprintf(p, "PMU driver version     : %d\n", PMU_DRIVER_VERSION);
+	p += sprintf(p, "PMU firmware version   : %02x\n", pmu_version);
+#ifdef CONFIG_PMAC_PBOOK
+	p += sprintf(p, "AC Power               : %d\n",
+		((pmu_power_flags & PMU_PWR_AC_PRESENT) != 0));
+	p += sprintf(p, "Battery count          : %d\n", pmu_battery_count);
+#endif /* CONFIG_PMAC_PBOOK */
+
+	return p - page;
+}
+
+static int __pmac
+proc_get_irqstats(char *page, char **start, off_t off,
+		  int count, int *eof, void *data)
+{
+	int i;
+	char* p = page;
+	static const char *irq_names[] = {
+		"Total CB1 triggered events",
+		"Total GPIO1 triggered events",
+		"PC-Card eject button",
+		"Sound/Brightness button",
+		"ADB message",
+		"Battery state change",
+		"Environment interrupt",
+		"Tick timer",
+		"Ghost interrupt (zero len)",
+		"Empty interrupt (empty mask)",
+		"Max irqs in a row"
+        };
+
+	for (i=0; i<11; i++) {
+		p += sprintf(p, " %2u: %10u (%s)\n",
+			     i, pmu_irq_stats[i], irq_names[i]);
+	}
+	return p - page;
+}
+
+#ifdef CONFIG_PMAC_PBOOK
+static int __pmac
+proc_get_batt(char *page, char **start, off_t off,
+		int count, int *eof, void *data)
+{
+	int batnum = (int)data;
+	char *p = page;
+	
+	p += sprintf(p, "\n");
+	p += sprintf(p, "flags      : %08x\n",
+		pmu_batteries[batnum].flags);
+	p += sprintf(p, "charge     : %d\n",
+		pmu_batteries[batnum].charge);
+	p += sprintf(p, "max_charge : %d\n",
+		pmu_batteries[batnum].max_charge);
+	p += sprintf(p, "current    : %d\n",
+		pmu_batteries[batnum].amperage);
+	p += sprintf(p, "voltage    : %d\n",
+		pmu_batteries[batnum].voltage);
+	p += sprintf(p, "time rem.  : %d\n",
+		pmu_batteries[batnum].time_remaining);
+
+	return p - page;
+}
+#endif /* CONFIG_PMAC_PBOOK */
+
+static int __pmac
+proc_read_options(char *page, char **start, off_t off,
+			int count, int *eof, void *data)
+{
+	char *p = page;
+
+#ifdef CONFIG_PMAC_PBOOK
+	if (pmu_kind == PMU_KEYLARGO_BASED &&
+	    pmac_call_feature(PMAC_FTR_SLEEP_STATE,NULL,0,-1) >= 0)
+		p += sprintf(p, "lid_wakeup=%d\n", option_lid_wakeup);
+#endif /* CONFIG_PMAC_PBOOK */
+	if (pmu_kind == PMU_KEYLARGO_BASED)
+		p += sprintf(p, "server_mode=%d\n", option_server_mode);
+
+	return p - page;
+}
+			
+static int __pmac
+proc_write_options(struct file *file, const char __user *buffer,
+			unsigned long count, void *data)
+{
+	char tmp[33];
+	char *label, *val;
+	unsigned long fcount = count;
+	
+	if (!count)
+		return -EINVAL;
+	if (count > 32)
+		count = 32;
+	if (copy_from_user(tmp, buffer, count))
+		return -EFAULT;
+	tmp[count] = 0;
+
+	label = tmp;
+	while(*label == ' ')
+		label++;
+	val = label;
+	while(*val && (*val != '=')) {
+		if (*val == ' ')
+			*val = 0;
+		val++;
+	}
+	if ((*val) == 0)
+		return -EINVAL;
+	*(val++) = 0;
+	while(*val == ' ')
+		val++;
+#ifdef CONFIG_PMAC_PBOOK
+	if (pmu_kind == PMU_KEYLARGO_BASED &&
+	    pmac_call_feature(PMAC_FTR_SLEEP_STATE,NULL,0,-1) >= 0)
+		if (!strcmp(label, "lid_wakeup"))
+			option_lid_wakeup = ((*val) == '1');
+#endif /* CONFIG_PMAC_PBOOK */
+	if (pmu_kind == PMU_KEYLARGO_BASED && !strcmp(label, "server_mode")) {
+		int new_value;
+		new_value = ((*val) == '1');
+		if (new_value != option_server_mode)
+			pmu_set_server_mode(new_value);
+	}
+	return fcount;
+}
+
+#ifdef CONFIG_ADB
+/* Send an ADB command */
+static int __pmac
+pmu_send_request(struct adb_request *req, int sync)
+{
+	int i, ret;
+
+	if ((vias == NULL) || (!pmu_fully_inited)) {
+		req->complete = 1;
+		return -ENXIO;
+	}
+
+	ret = -EINVAL;
+
+	switch (req->data[0]) {
+	case PMU_PACKET:
+		for (i = 0; i < req->nbytes - 1; ++i)
+			req->data[i] = req->data[i+1];
+		--req->nbytes;
+		if (pmu_data_len[req->data[0]][1] != 0) {
+			req->reply[0] = ADB_RET_OK;
+			req->reply_len = 1;
+		} else
+			req->reply_len = 0;
+		ret = pmu_queue_request(req);
+		break;
+	case CUDA_PACKET:
+		switch (req->data[1]) {
+		case CUDA_GET_TIME:
+			if (req->nbytes != 2)
+				break;
+			req->data[0] = PMU_READ_RTC;
+			req->nbytes = 1;
+			req->reply_len = 3;
+			req->reply[0] = CUDA_PACKET;
+			req->reply[1] = 0;
+			req->reply[2] = CUDA_GET_TIME;
+			ret = pmu_queue_request(req);
+			break;
+		case CUDA_SET_TIME:
+			if (req->nbytes != 6)
+				break;
+			req->data[0] = PMU_SET_RTC;
+			req->nbytes = 5;
+			for (i = 1; i <= 4; ++i)
+				req->data[i] = req->data[i+1];
+			req->reply_len = 3;
+			req->reply[0] = CUDA_PACKET;
+			req->reply[1] = 0;
+			req->reply[2] = CUDA_SET_TIME;
+			ret = pmu_queue_request(req);
+			break;
+		}
+		break;
+	case ADB_PACKET:
+	    	if (!pmu_has_adb)
+    			return -ENXIO;
+		for (i = req->nbytes - 1; i > 1; --i)
+			req->data[i+2] = req->data[i];
+		req->data[3] = req->nbytes - 2;
+		req->data[2] = pmu_adb_flags;
+		/*req->data[1] = req->data[1];*/
+		req->data[0] = PMU_ADB_CMD;
+		req->nbytes += 2;
+		req->reply_expected = 1;
+		req->reply_len = 0;
+		ret = pmu_queue_request(req);
+		break;
+	}
+	if (ret) {
+		req->complete = 1;
+		return ret;
+	}
+
+	if (sync)
+		while (!req->complete)
+			pmu_poll();
+
+	return 0;
+}
+
+/* Enable/disable autopolling */
+static int __pmac
+pmu_adb_autopoll(int devs)
+{
+	struct adb_request req;
+
+	if ((vias == NULL) || (!pmu_fully_inited) || !pmu_has_adb)
+		return -ENXIO;
+
+	if (devs) {
+		adb_dev_map = devs;
+		pmu_request(&req, NULL, 5, PMU_ADB_CMD, 0, 0x86,
+			    adb_dev_map >> 8, adb_dev_map);
+		pmu_adb_flags = 2;
+	} else {
+		pmu_request(&req, NULL, 1, PMU_ADB_POLL_OFF);
+		pmu_adb_flags = 0;
+	}
+	while (!req.complete)
+		pmu_poll();
+	return 0;
+}
+
+/* Reset the ADB bus */
+static int __pmac
+pmu_adb_reset_bus(void)
+{
+	struct adb_request req;
+	int save_autopoll = adb_dev_map;
+
+	if ((vias == NULL) || (!pmu_fully_inited) || !pmu_has_adb)
+		return -ENXIO;
+
+	/* anyone got a better idea?? */
+	pmu_adb_autopoll(0);
+
+	req.nbytes = 5;
+	req.done = NULL;
+	req.data[0] = PMU_ADB_CMD;
+	req.data[1] = 0;
+	req.data[2] = ADB_BUSRESET;
+	req.data[3] = 0;
+	req.data[4] = 0;
+	req.reply_len = 0;
+	req.reply_expected = 1;
+	if (pmu_queue_request(&req) != 0) {
+		printk(KERN_ERR "pmu_adb_reset_bus: pmu_queue_request failed\n");
+		return -EIO;
+	}
+	pmu_wait_complete(&req);
+
+	if (save_autopoll != 0)
+		pmu_adb_autopoll(save_autopoll);
+
+	return 0;
+}
+#endif /* CONFIG_ADB */
+
+/* Construct and send a pmu request */
+int __openfirmware
+pmu_request(struct adb_request *req, void (*done)(struct adb_request *),
+	    int nbytes, ...)
+{
+	va_list list;
+	int i;
+
+	if (vias == NULL)
+		return -ENXIO;
+
+	if (nbytes < 0 || nbytes > 32) {
+		printk(KERN_ERR "pmu_request: bad nbytes (%d)\n", nbytes);
+		req->complete = 1;
+		return -EINVAL;
+	}
+	req->nbytes = nbytes;
+	req->done = done;
+	va_start(list, nbytes);
+	for (i = 0; i < nbytes; ++i)
+		req->data[i] = va_arg(list, int);
+	va_end(list);
+	req->reply_len = 0;
+	req->reply_expected = 0;
+	return pmu_queue_request(req);
+}
+
+int __pmac
+pmu_queue_request(struct adb_request *req)
+{
+	unsigned long flags;
+	int nsend;
+
+	if (via == NULL) {
+		req->complete = 1;
+		return -ENXIO;
+	}
+	if (req->nbytes <= 0) {
+		req->complete = 1;
+		return 0;
+	}
+	nsend = pmu_data_len[req->data[0]][0];
+	if (nsend >= 0 && req->nbytes != nsend + 1) {
+		req->complete = 1;
+		return -EINVAL;
+	}
+
+	req->next = NULL;
+	req->sent = 0;
+	req->complete = 0;
+
+	spin_lock_irqsave(&pmu_lock, flags);
+	if (current_req !=