/* $OpenBSD: pm_direct.c,v 1.22 2007/02/18 19:33:48 gwk Exp $ */
/* $NetBSD: pm_direct.c,v 1.9 2000/06/08 22:10:46 tsubai Exp $ */
/*
* Copyright (C) 1997 Takashi Hamada
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Takashi Hamada
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef DEBUG
#ifndef ADB_DEBUG
#define ADB_DEBUG
#endif
#endif
/* #define PM_GRAB_SI 1 */
#include <sys/param.h>
#include <sys/cdefs.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <machine/cpu.h>
#include <dev/adb/adb.h>
#include <macppc/dev/adbvar.h>
#include <macppc/dev/pm_direct.h>
#include <macppc/dev/viareg.h>
/* hardware dependent values */
#define ADBDelay 100 /* XXX */
/* define the types of the Power Manager */
#define PM_HW_UNKNOWN 0x00 /* don't know */
#define PM_HW_PB5XX 0x02 /* PowerBook Duo and 5XX series */
/* useful macros */
#define PM_SR() read_via_reg(VIA1, vSR)
#define PM_VIA_INTR_ENABLE() write_via_reg(VIA1, vIER, 0x90)
#define PM_VIA_INTR_DISABLE() write_via_reg(VIA1, vIER, 0x10)
#define PM_VIA_CLR_INTR() write_via_reg(VIA1, vIFR, 0x90)
#if 0
#define PM_SET_STATE_ACKON() via_reg_or(VIA2, vBufB, 0x04)
#define PM_SET_STATE_ACKOFF() via_reg_and(VIA2, vBufB, ~0x04)
#define PM_IS_ON (0x02 == (read_via_reg(VIA2, vBufB) & 0x02))
#define PM_IS_OFF (0x00 == (read_via_reg(VIA2, vBufB) & 0x02))
#else
#define PM_SET_STATE_ACKON() via_reg_or(VIA2, vBufB, 0x10)
#define PM_SET_STATE_ACKOFF() via_reg_and(VIA2, vBufB, ~0x10)
#define PM_IS_ON (0x08 == (read_via_reg(VIA2, vBufB) & 0x08))
#define PM_IS_OFF (0x00 == (read_via_reg(VIA2, vBufB) & 0x08))
#endif
/*
* Variables for internal use
*/
int pmHardware = PM_HW_UNKNOWN;
/* these values shows that number of data returned after 'send' cmd is sent */
signed char pm_send_cmd_type[] = {
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
0x01, 0x01, -1, -1, -1, -1, -1, -1,
0x00, 0x00, -1, -1, -1, -1, -1, 0x00,
-1, 0x00, 0x02, 0x01, 0x01, -1, -1, -1,
0x00, -1, -1, -1, -1, -1, -1, -1,
0x04, 0x14, -1, 0x03, -1, -1, -1, -1,
0x00, 0x00, 0x02, 0x02, -1, -1, -1, -1,
0x01, 0x01, -1, -1, -1, -1, -1, -1,
0x00, 0x00, -1, -1, 0x01, -1, -1, -1,
0x01, 0x00, 0x02, 0x02, -1, 0x01, 0x03, 0x01,
0x00, 0x01, 0x00, 0x00, 0x00, -1, -1, -1,
0x02, -1, -1, -1, -1, -1, -1, -1,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -1, -1,
0x01, 0x01, 0x01, -1, -1, -1, -1, -1,
0x00, 0x00, -1, -1, -1, -1, 0x04, 0x04,
0x04, -1, 0x00, -1, -1, -1, -1, -1,
0x00, -1, -1, -1, -1, -1, -1, -1,
0x01, 0x02, -1, -1, -1, -1, -1, -1,
0x00, 0x00, -1, -1, -1, -1, -1, -1,
0x02, 0x02, 0x02, 0x04, -1, 0x00, -1, -1,
0x01, 0x01, 0x03, 0x02, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
0x00, -1, -1, -1, -1, -1, -1, -1,
0x01, 0x01, -1, -1, 0x00, 0x00, -1, -1,
-1, 0x04, 0x00, -1, -1, -1, -1, -1,
0x03, -1, 0x00, -1, 0x00, -1, -1, 0x00,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1
};
/* these values shows that number of data returned after 'receive' cmd is sent */
signed char pm_receive_cmd_type[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-1, -1, -1, -1, -1, -1, -1, -1,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x02, -1, -1, -1, -1, -1, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-1, -1, -1, -1, -1, -1, -1, -1,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x05, 0x15, -1, 0x02, -1, -1, -1, -1,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x02, -1, -1, -1, -1, -1, -1,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x00, 0x03, 0x03, -1, -1, -1, -1,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x04, 0x04, 0x03, 0x09, -1, -1, -1, -1,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-1, -1, -1, -1, -1, -1, 0x01, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x06, -1, -1, -1, -1, -1, -1, -1,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x02, -1, -1, -1, -1, -1, -1,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x00, 0x00, 0x00, -1, -1, -1, -1,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-1, -1, -1, -1, -1, -1, -1, -1,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-1, -1, -1, -1, -1, -1, -1, -1,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x02, -1, -1, 0x02, -1, -1, -1,
0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
-1, -1, 0x02, -1, -1, -1, -1, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-1, -1, -1, -1, -1, -1, -1, -1,
};
/*
* Define the private functions
*/
/* for debugging */
#ifdef ADB_DEBUG
void pm_printerr(char *, int, int, char *);
#endif
int pm_wait_busy(int);
int pm_wait_free(int);
/* these functions are for the PB Duo series and the PB 5XX series */
int pm_receive_pm2(u_char *);
int pm_send_pm2(u_char);
int pm_pmgrop_pm2(PMData *);
void pm_intr_pm2(void);
/* these functions also use the variables of adb_direct.c */
void pm_adb_get_TALK_result(PMData *);
void pm_adb_get_ADB_data(PMData *);
/*
* These variables are in adb_direct.c.
*/
extern u_char *adbBuffer; /* pointer to user data area */
extern void *adbCompRout; /* pointer to the completion routine */
extern void *adbCompData; /* pointer to the completion routine data */
extern int adbWaiting; /* waiting for return data from the device */
extern int adbWaitingCmd; /* ADB command we are waiting for */
extern int adbStarting; /* doing ADB reinit, so do "polling" differently */
#define ADB_MAX_MSG_LENGTH 16
#define ADB_MAX_HDR_LENGTH 8
struct adbCommand {
u_char header[ADB_MAX_HDR_LENGTH]; /* not used yet */
u_char data[ADB_MAX_MSG_LENGTH]; /* packet data only */
u_char *saveBuf; /* where to save result */
u_char *compRout; /* completion routine pointer */
u_char *compData; /* completion routine data pointer */
u_int cmd; /* the original command for this data */
u_int unsol; /* 1 if packet was unsolicited */
u_int ack_only; /* 1 for no special processing */
};
extern void adb_pass_up(struct adbCommand *);
#ifdef ADB_DEBUG
/*
* This function dumps contents of the PMData
*/
void
pm_printerr(ttl, rval, num, data)
char *ttl;
int rval;
int num;
char *data;
{
int i;
printf("pm: %s:%04x %02x ", ttl, rval, num);
for (i = 0; i < num; i++)
printf("%02x ", data[i]);
printf("\n");
}
#endif
/*
* Check the hardware type of the Power Manager
*/
void
pm_setup_adb()
{
pmHardware = PM_HW_PB5XX; /* XXX */
}
/*
* Wait until PM IC is busy
*/
int
pm_wait_busy(int delay)
{
while (PM_IS_ON) {
#ifdef PM_GRAB_SI
(void)intr_dispatch(0x70);
#endif
if ((--delay) < 0)
return 1; /* timeout */
}
return 0;
}
/*
* Wait until PM IC is free
*/
int
pm_wait_free(int delay)
{
while (PM_IS_OFF) {
#ifdef PM_GRAB_SI
(void)intr_dispatch(0x70);
#endif
if ((--delay) < 0)
return 0; /* timeout */
}
return 1;
}
/*
* Functions for the PB Duo series and the PB 5XX series
*/
/*
* Receive data from PM for the PB Duo series and the PB 5XX series
*/
int
pm_receive_pm2(u_char *data)
{
int i;
int rval;
rval = 0xffffcd34;
switch (1) {
default:
/* set VIA SR to input mode */
via_reg_or(VIA1, vACR, 0x0c);
via_reg_and(VIA1, vACR, ~0x10);
i = PM_SR();
PM_SET_STATE_ACKOFF();
if (pm_wait_busy((int)ADBDelay*32) != 0)
break; /* timeout */
PM_SET_STATE_ACKON();
rval = 0xffffcd33;
if (pm_wait_free((int)ADBDelay*32) == 0)
break; /* timeout */
*data = PM_SR();
rval = 0;
break;
}
PM_SET_STATE_ACKON();
via_reg_or(VIA1, vACR, 0x1c);
return rval;
}
/*
* Send data to PM for the PB Duo series and the PB 5XX series
*/
int
pm_send_pm2(data)
u_char data;
{
int rval;
via_reg_or(VIA1, vACR, 0x1c);
write_via_reg(VIA1, vSR, data); /* PM_SR() = data; */
PM_SET_STATE_ACKOFF();
rval = 0xffffcd36;
if (pm_wait_busy((int)ADBDelay*32) != 0) {
PM_SET_STATE_ACKON();
via_reg_or(VIA1, vACR, 0x1c);
return rval;
}
PM_SET_STATE_ACKON();
rval = 0xffffcd35;
if (pm_wait_free((int)ADBDelay*32) != 0)
rval = 0;
PM_SET_STATE_ACKON();
via_reg_or(VIA1, vACR, 0x1c);
return rval;
}
/*
* My PMgrOp routine for the PB Duo series and the PB 5XX series
*/
int
pm_pmgrop_pm2(PMData *pmdata)
{
int i;
int s;
u_char via1_vIER;
int rval = 0;
int num_pm_data = 0;
u_char pm_cmd;
short pm_num_rx_data;
u_char pm_data;
u_char *pm_buf;
s = splhigh();
/* disable all interrupts but PM */
via1_vIER = 0x10;
via1_vIER &= read_via_reg(VIA1, vIER);
write_via_reg(VIA1, vIER, via1_vIER);
if (via1_vIER != 0x0)
via1_vIER |= 0x80;
switch (pmdata->command) {
default:
/* wait until PM is free */
pm_cmd = (u_char)(pmdata->command & 0xff);
rval = 0xcd38;
if (pm_wait_free(ADBDelay * 4) == 0)
break; /* timeout */
/* send PM command */
if ((rval = pm_send_pm2((u_char)(pm_cmd & 0xff))))
break; /* timeout */
/* send number of PM data */
num_pm_data = pmdata->num_data;
if (pm_send_cmd_type[pm_cmd] < 0) {
if ((rval = pm_send_pm2((u_char)(num_pm_data & 0xff))) != 0)
break; /* timeout */
pmdata->command = 0;
}
/* send PM data */
pm_buf = (u_char *)pmdata->s_buf;
for (i = 0 ; i < num_pm_data; i++)
if ((rval = pm_send_pm2(pm_buf[i])) != 0)
break; /* timeout */
if (i != num_pm_data)
break; /* timeout */
/* check if PM will send me data */
pm_num_rx_data = pm_receive_cmd_type[pm_cmd];
pmdata->num_data = pm_num_rx_data;
if (pm_num_rx_data == 0) {
rval = 0;
break; /* no return data */
}
/* receive PM command */
pm_data = pmdata->command;
pm_num_rx_data--;
if (pm_num_rx_data == 0)
if ((rval = pm_receive_pm2(&pm_data)) != 0) {
rval = 0xffffcd37;
break;
}
pmdata->command = pm_data;
/* receive number of PM data */
if (pm_num_rx_data < 0) {
if ((rval = pm_receive_pm2(&pm_data)) != 0)
break; /* timeout */
num_pm_data = pm_data;
} else
num_pm_data = pm_num_rx_data;
pmdata->num_data = num_pm_data;
/* receive PM data */
pm_buf = (u_char *)pmdata->r_buf;
for (i = 0; i < num_pm_data; i++) {
if ((rval = pm_receive_pm2(&pm_data)) != 0)
break; /* timeout */
pm_buf[i] = pm_data;
}
rval = 0;
}
/* restore former value */
write_via_reg(VIA1, vIER, via1_vIER);
splx(s);
return rval;
}
/*
* My PM interrupt routine for the PB Duo series and the PB 5XX series
*/
void
pm_intr_pm2()
{
int s;
int rval;
PMData pmdata;
s = splhigh();
PM_VIA_CLR_INTR(); /* clear VIA1 interrupt */
/* ask PM what happend */
pmdata.command = 0x78;
pmdata.num_data = 0;
pmdata.s_buf = &pmdata.data[2];
pmdata.r_buf = &pmdata.data[2];
rval = pm_pmgrop_pm2(&pmdata);
if (rval != 0) {
#ifdef ADB_DEBUG
if (adb_debug)
printf("pm: PM is not ready. error code: %08x\n", rval);
#endif
splx(s);
return;
}
switch ((u_int)(pmdata.data[2] & 0xff)) {
case 0x00: /* 1 sec interrupt? */
break;
case PMU_INT_TICK: /* 1 sec interrupt? */
break;
case PMU_INT_SNDBRT: /* Brightness/Contrast button on LCD panel */
break;
case PMU_INT_ADB: /* ADB data requested by TALK command */
case PMU_INT_ADB|PMU_INT_ADB_AUTO:
pm_adb_get_TALK_result(&pmdata);
break;
case 0x16: /* ADB device event */
case 0x18:
case 0x1e:
case PMU_INT_WAKEUP:
pm_adb_get_ADB_data(&pmdata);
break;
default:
#ifdef ADB_DEBUG
if (adb_debug)
pm_printerr("driver does not support this event.",
pmdata.data[2], pmdata.num_data,
pmdata.data);
#endif
break;
}
splx(s);
}
/*
* My PMgrOp routine
*/
int
pmgrop(PMData *pmdata)
{
switch (pmHardware) {
case PM_HW_PB5XX:
return (pm_pmgrop_pm2(pmdata));
default:
/* return (pmgrop_mrg(pmdata)); */
return 1;
}
}
/*
* My PM interrupt routine
*/
void
pm_intr()
{
switch (pmHardware) {
case PM_HW_PB5XX:
pm_intr_pm2();
break;
default:
break;
}
}
/*
* Synchronous ADBOp routine for the Power Manager
*/
int
pm_adb_op(u_char *buffer, void *compRout, void *data, int command)
{
int i;
int s;
int rval;
int ndelay;
int waitfor; /* interrupts to poll for */
int ifr;
#ifdef ADB_DEBUG
int oldifr;
#endif
PMData pmdata;
struct adbCommand packet;
extern int adbempty;
if (adbWaiting == 1)
return 1;
s = splhigh();
write_via_reg(VIA1, vIER, 0x10);
adbBuffer = buffer;
adbCompRout = compRout;
adbCompData = data;
pmdata.command = 0x20;
pmdata.s_buf = pmdata.data;
pmdata.r_buf = pmdata.data;
/*
* if the command is LISTEN,
* add number of ADB data to number of PM data
*/
if ((command & 0xc) == 0x8) {
if (buffer != (u_char *)0)
pmdata.num_data = buffer[0] + 3;
} else
pmdata.num_data = 3;
/*
* Resetting adb on several models, such as
* - PowerBook3,*
* - PowerBook5,*
* - PowerMac10,1
* causes several pmu interrupts with ifr set to PMU_INT_SNDBRT.
* Not processing them prevents us from seeing the adb devices
* afterwards, so we have to expect it unless we know the adb
* bus is empty.
*/
if (command == PMU_RESET_ADB) {
waitfor = PMU_INT_ADB_AUTO | PMU_INT_ADB;
if (adbempty == 0)
waitfor |= PMU_INT_SNDBRT;
} else
waitfor = PMU_INT_ALL;
pmdata.data[0] = (u_char)(command & 0xff);
pmdata.data[1] = 0;
/* if the command is LISTEN, copy ADB data to PM buffer */
if ((command & 0xc) == 0x8) {
if ((buffer != (u_char *)0) && (buffer[0] <= 24)) {
pmdata.data[2] = buffer[0]; /* number of data */
for (i = 0; i < buffer[0]; i++)
pmdata.data[3 + i] = buffer[1 + i];
} else
pmdata.data[2] = 0;
} else
pmdata.data[2] = 0;
if ((command & 0xc) != 0xc) { /* if the command is not TALK */
/* set up stuff for adb_pass_up */
packet.data[0] = 1 + pmdata.data[2];
packet.data[1] = command;
for (i = 0; i < pmdata.data[2]; i++)
packet.data[i+2] = pmdata.data[i+3];
packet.saveBuf = adbBuffer;
packet.compRout = adbCompRout;
packet.compData = adbCompData;
packet.cmd = command;
packet.unsol = 0;
packet.ack_only = 1;
adb_polling = 1;
adb_pass_up(&packet);
adb_polling = 0;
}
rval = pmgrop(&pmdata);
if (rval != 0) {
splx(s);
return 1;
}
delay (1000);
adbWaiting = 1;
adbWaitingCmd = command;
PM_VIA_INTR_ENABLE();
/* wait until the PM interrupt is occurred */
ndelay = 0x8000;
#ifdef ADB_DEBUG
oldifr = 0;
#endif
while (adbWaiting == 1) {
ifr = read_via_reg(VIA1, vIFR);
if (ifr & waitfor) {
pm_intr();
#ifdef PM_GRAB_SI
(void)intr_dispatch(0x70);
#endif
#ifdef ADB_DEBUG
} else if (ifr != oldifr) {
if (adb_debug)
printf("pm_adb_op: ignoring ifr %02x"
", expecting %02x\n",
(u_int)ifr, (u_int)waitfor);
oldifr = ifr;
#endif
}
if ((--ndelay) < 0) {
splx(s);
return 1;
}
delay(10);
}
/* this command enables the interrupt by operating ADB devices */
pmdata.command = 0x20;
pmdata.num_data = 4;
pmdata.s_buf = pmdata.data;
pmdata.r_buf = pmdata.data;
pmdata.data[0] = 0x00;
pmdata.data[1] = 0x86; /* magic spell for awaking the PM */
pmdata.data[2] = 0x00;
pmdata.data[3] = 0x0c; /* each bit may express the existent ADB device */
rval = pmgrop(&pmdata);
splx(s);
return rval;
}
void
pm_adb_get_TALK_result(PMData *pmdata)
{
int i;
struct adbCommand packet;
/* set up data for adb_pass_up */
packet.data[0] = pmdata->num_data-1;
packet.data[1] = pmdata->data[3];
for (i = 0; i <packet.data[0]-1; i++)
packet.data[i+2] = pmdata->data[i+4];
packet.saveBuf = adbBuffer;
packet.compRout = adbCompRout;
packet.compData = adbCompData;
packet.unsol = 0;
packet.ack_only = 0;
adb_polling = 1;
adb_pass_up(&packet);
adb_polling = 0;
adbWaiting = 0;
adbBuffer = (long)0;
adbCompRout = (long)0;
adbCompData = (long)0;
}
void
pm_adb_get_ADB_data(PMData *pmdata)
{
int i;
struct adbCommand packet;
/* set up data for adb_pass_up */
packet.data[0] = pmdata->num_data-1; /* number of raw data */
packet.data[1] = pmdata->data[3]; /* ADB command */
for (i = 0; i <packet.data[0]-1; i++)
packet.data[i+2] = pmdata->data[i+4];
packet.unsol = 1;
packet.ack_only = 0;
adb_pass_up(&packet);
}
void
pm_adb_restart()
{
PMData p;
p.command = PMU_RESET_CPU;
p.num_data = 0;
p.s_buf = p.data;
p.r_buf = p.data;
pmgrop(&p);
}
void
pm_adb_poweroff()
{
PMData p;
bzero(&p, sizeof p);
p.command = PMU_POWER_OFF;
p.num_data = 4;
p.s_buf = p.data;
p.r_buf = p.data;
strlcpy(p.data, "MATT", sizeof p.data);
pmgrop(&p);
}
void
pm_read_date_time(time_t *time)
{
PMData p;
p.command = PMU_READ_RTC;
p.num_data = 0;
p.s_buf = p.data;
p.r_buf = p.data;
pmgrop(&p);
bcopy(p.data, time, 4);
}
void
pm_set_date_time(time_t time)
{
PMData p;
p.command = PMU_SET_RTC;
p.num_data = 4;
p.s_buf = p.r_buf = p.data;
bcopy(&time, p.data, 4);
pmgrop(&p);
}
#if 0
void
pm_eject_pcmcia(int slot)
{
PMData p;
if (slot != 0 && slot != 1)
return;
p.command = PMU_EJECT_PCMCIA;
p.num_data = 1;
p.s_buf = p.r_buf = p.data;
p.data[0] = 5 + slot; /* XXX */
pmgrop(&p);
}
#endif
/*
* Thanks to Paul Mackerras and Fabio Riccardi's Linux implementation
* for a clear description of the PMU results.
*/
int
pm_battery_info(int battery, struct pmu_battery_info *info)
{
PMData p;
p.command = PMU_SMART_BATTERY_STATE;
p.num_data = 1;
p.s_buf = p.r_buf = p.data;
p.data[0] = battery + 1;
pmgrop(&p);
info->flags = p.data[1];
switch (p.data[0]) {
case 3:
case 4:
info->cur_charge = p.data[2];
info->max_charge = p.data[3];
info->draw = *((signed char *)&p.data[4]);
info->voltage = p.data[5];
break;
case 5:
info->cur_charge = ((p.data[2] << 8) | (p.data[3]));
info->max_charge = ((p.data[4] << 8) | (p.data[5]));
info->draw = *((signed short *)&p.data[6]);
info->voltage = ((p.data[8] << 8) | (p.data[7]));
break;
default:
/* XXX - Error condition */
info->cur_charge = 0;
info->max_charge = 0;
info->draw = 0;
info->voltage = 0;
break;
}
return 1;
}
void
pmu_fileserver_mode(int on)
{
PMData p;
p.command = PMU_POWER_EVENTS;
p.num_data = 1;
p.s_buf = p.r_buf = p.data;
p.data[0] = PMU_PWR_GET_POWERUP_EVENTS;
pmgrop(&p);
p.command = PMU_POWER_EVENTS;
p.num_data = 3;
p.s_buf = p.r_buf = p.data;
p.data[1] = p.data[0]; /* result from the get */
if (on) {
p.data[0] = PMU_PWR_SET_POWERUP_EVENTS;
p.data[2] = PMU_WAKE_AC_LOSS;
} else {
p.data[0] = PMU_PWR_CLR_POWERUP_EVENTS;
p.data[2] = PMU_WAKE_AC_LOSS;
}
pmgrop(&p);
}
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