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Subject[PATCHSET 5/17] support PC-9800 against 2.5.45-ac1 (apm)
This patch add APM support for PC-9800.
We need these change according to BIOS difference.

--
Osamu Tomitadiff -urN linux/arch/i386/kernel/apm.c linux98/arch/i386/kernel/apm.c
--- linux/arch/i386/kernel/apm.c Thu Oct 31 13:23:02 2002
+++ linux98/arch/i386/kernel/apm.c Thu Oct 31 13:35:09 2002
@@ -227,6 +227,8 @@

#include <linux/sysrq.h>

+#include "io_ports.h"
+
extern rwlock_t xtime_lock;
extern spinlock_t i8253_lock;
extern unsigned long get_cmos_time(void);
@@ -377,6 +379,15 @@
#define DEFAULT_IDLE_PERIOD (100 / 3)

/*
+ * PC-9800 BIOS reports version by BCD format
+ */
+#ifdef CONFIG_PC9800
+#define BIOS_VERSION_HILO_FMT "%d.%02x"
+#else
+#define BIOS_VERSION_HILO_FMT "%d.%d"
+#endif
+
+/*
* Local variables
*/
static struct {
@@ -629,6 +640,9 @@
__asm__ __volatile__(APM_DO_ZERO_SEGS
"pushl %%edi\n\t"
"pushl %%ebp\n\t"
+#ifdef CONFIG_PC9800
+ "pushfl\n\t"
+#endif
"lcall *%%cs:apm_bios_entry\n\t"
"setc %%al\n\t"
"popl %%ebp\n\t"
@@ -690,6 +704,9 @@
__asm__ __volatile__(APM_DO_ZERO_SEGS
"pushl %%edi\n\t"
"pushl %%ebp\n\t"
+#ifdef CONFIG_PC9800
+ "pushfl\n\t"
+#endif
"lcall *%%cs:apm_bios_entry\n\t"
"setc %%bl\n\t"
"popl %%ebp\n\t"
@@ -961,7 +978,7 @@
/*
* This may be called on an SMP machine.
*/
-#ifdef CONFIG_SMP
+#if defined(CONFIG_SMP) && !defined(CONFIG_PC9800)
/* Some bioses don't like being called from CPU != 0 */
if (smp_processor_id() != 0) {
set_cpus_allowed(current, 1 << 0);
@@ -1241,11 +1258,11 @@
{
#ifdef INIT_TIMER_AFTER_SUSPEND
/* set the clock to 100 Hz */
- outb_p(0x34,0x43); /* binary, mode 2, LSB/MSB, ch 0 */
+ outb_p(0x34, PIT_MODE); /* binary, mode 2, LSB/MSB, ch 0 */
udelay(10);
- outb_p(LATCH & 0xff , 0x40); /* LSB */
+ outb_p(LATCH & 0xff, PIT_CH0); /* LSB */
udelay(10);
- outb(LATCH >> 8 , 0x40); /* MSB */
+ outb(LATCH >> 8, PIT_CH0); /* MSB */
udelay(10);
#endif
}
@@ -1720,7 +1737,8 @@
-1: Unknown
8) min = minutes; sec = seconds */

- p += sprintf(p, "%s %d.%d 0x%02x 0x%02x 0x%02x 0x%02x %d%% %d %s\n",
+ p += sprintf(p, "%s " BIOS_VERSION_HILO_FMT
+ " 0x%02x 0x%02x 0x%02x 0x%02x %d%% %d %s\n",
driver_version,
(apm_info.bios.version >> 8) & 0xff,
apm_info.bios.version & 0xff,
@@ -1744,6 +1762,8 @@
char * power_stat;
char * bat_stat;

+#if !defined(CONFIG_PC9800) || !defined(CONFIG_SMP)
+ /* Deamonize causes freeze on PC-9800 SMP box */
kapmd_running = 1;

daemonize();
@@ -1751,6 +1771,7 @@
strcpy(current->comm, "kapmd");
current->flags |= PF_IOTHREAD;
sigfillset(&current->blocked);
+#endif /* !CONFIG_PC9800 || !CONFIG_SMP */

#ifdef CONFIG_SMP
/* 2002/08/01 - WT
@@ -1780,6 +1801,17 @@
/* Fall back to an APM 1.0 connection. */
apm_info.connection_version = 0x100;
}
+#ifdef CONFIG_PC9800
+ else {
+ printk("PC-9801 APM BIOS BUG work around: "
+ "fix connection_version 0x%x to ",
+ apm_info.connection_version);
+ apm_info.connection_version =
+ (apm_info.connection_version & 0xff00)
+ | ((apm_info.connection_version & 0x00f0) >> 4);
+ printk("0x%x\n", apm_info.connection_version);
+ }
+#endif /* CONFIG_PC9800 */
}
}

@@ -1956,8 +1988,8 @@
printk(KERN_INFO "apm: BIOS not found.\n");
return -ENODEV;
}
- printk(KERN_INFO
- "apm: BIOS version %d.%d Flags 0x%02x (Driver version %s)\n",
+ printk(KERN_INFO "apm: BIOS version " BIOS_VERSION_HILO_FMT
+ " Flags 0x%02x (Driver version %s)\n",
((apm_info.bios.version >> 8) & 0xff),
(apm_info.bios.version & 0xff),
apm_info.bios.flags,
@@ -1984,6 +2016,11 @@
if (apm_info.bios.version == 0x001)
apm_info.bios.version = 0x100;

+#ifdef CONFIG_PC9800
+ /* In PC-9800, APM BIOS version is written in BCD...?? */
+ apm_info.bios.version = (apm_info.bios.version & 0xff00)
+ | ((apm_info.bios.version & 0x00f0) >> 4);
+#endif
/* BIOS < 1.2 doesn't set cseg_16_len */
if (apm_info.bios.version < 0x102)
apm_info.bios.cseg_16_len = 0; /* 64k */
@@ -2067,7 +2104,11 @@
if (apm_proc)
SET_MODULE_OWNER(apm_proc);

+#if defined(CONFIG_PC9800) && defined(CONFIG_SMP)
+ apm(0);
+#else
kernel_thread(apm, NULL, CLONE_FS | CLONE_FILES | CLONE_SIGHAND | SIGCHLD);
+#endif

if (num_online_cpus() > 1 && !smp ) {
printk(KERN_NOTICE
diff -urN linux/include/linux/apm_bios.h linux98/include/linux/apm_bios.h
--- linux/include/linux/apm_bios.h Wed Aug 28 09:52:31 2002
+++ linux98/include/linux/apm_bios.h Wed Aug 28 13:34:09 2002
@@ -20,6 +20,7 @@
typedef unsigned short apm_eventinfo_t;

#ifdef __KERNEL__
+#include <linux/config.h>

#define APM_CS (GDT_ENTRY_APMBIOS_BASE * 8)
#define APM_CS_16 (APM_CS + 8)
@@ -60,6 +61,7 @@
/*
* The APM function codes
*/
+#ifndef CONFIG_PC9800
#define APM_FUNC_INST_CHECK 0x5300
#define APM_FUNC_REAL_CONN 0x5301
#define APM_FUNC_16BIT_CONN 0x5302
@@ -80,6 +82,28 @@
#define APM_FUNC_RESUME_TIMER 0x5311
#define APM_FUNC_RESUME_ON_RING 0x5312
#define APM_FUNC_TIMER 0x5313
+#else
+#define APM_FUNC_INST_CHECK 0x9a00
+#define APM_FUNC_REAL_CONN 0x9a01
+#define APM_FUNC_16BIT_CONN 0x9a02
+#define APM_FUNC_32BIT_CONN 0x9a03
+#define APM_FUNC_DISCONN 0x9a04
+#define APM_FUNC_IDLE 0x9a05
+#define APM_FUNC_BUSY 0x9a06
+#define APM_FUNC_SET_STATE 0x9a07
+#define APM_FUNC_ENABLE_PM 0x9a08
+#define APM_FUNC_RESTORE_BIOS 0x9a09
+#define APM_FUNC_GET_STATUS 0x9a3a
+#define APM_FUNC_GET_EVENT 0x9a0b
+#define APM_FUNC_GET_STATE 0x9a0c
+#define APM_FUNC_ENABLE_DEV_PM 0x9a0d
+#define APM_FUNC_VERSION 0x9a3e
+#define APM_FUNC_ENGAGE_PM 0x9a3f
+#define APM_FUNC_GET_CAP 0x9a10
+#define APM_FUNC_RESUME_TIMER 0x9a11
+#define APM_FUNC_RESUME_ON_RING 0x9a12
+#define APM_FUNC_TIMER 0x9a13
+#endif

/*
* Function code for APM_FUNC_RESUME_TIMER
\
 
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