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Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-apm

Browse Source 
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-apm:
  [APM] SH: Convert to use shared APM emulation.
  [APM] MIPS: Convert to use shared APM emulation.
  [APM] ARM: Convert to use shared APM emulation.
  [APM] Add shared version of APM emulation
This commit is contained in:
Linus Torvalds
2007-02-09 09:44:28 -08:00
parent 2affc857ef 0a9b0db192
commit 2fd592e45b
19 changed files with 78 additions and 1368 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/arm/Kconfig
+4 -25
View File
@@ -9,6 +9,7 @@ config ARM
bool
default y
select RTC_LIB
select SYS_SUPPORTS_APM_EMULATION
help
The ARM series is a line of low-power-consumption RISC chip designs
licensed by ARM Ltd and targeted at embedded applications and
@@ -17,6 +18,9 @@ config ARM
Europe. There is an ARM Linux project with a web page at
<http://www.arm.linux.org.uk/>.
config SYS_SUPPORTS_APM_EMULATION
bool
config GENERIC_TIME
bool
default n
@@ -856,31 +860,6 @@ menu "Power management options"
source "kernel/power/Kconfig"
config APM
tristate "Advanced Power Management Emulation"
---help---
APM is a BIOS specification for saving power using several different
techniques. This is mostly useful for battery powered laptops with
APM compliant BIOSes. If you say Y here, the system time will be
reset after a RESUME operation, the /proc/apm device will provide
battery status information, and user-space programs will receive
notification of APM "events" (e.g. battery status change).
In order to use APM, you will need supporting software. For location
and more information, read <file:Documentation/pm.txt> and the
Battery Powered Linux mini-HOWTO, available from
<http://www.tldp.org/docs.html#howto>.
This driver does not spin down disk drives (see the hdparm(8)
manpage ("man 8 hdparm") for that), and it doesn't turn off
VESA-compliant "green" monitors.
Generally, if you don't have a battery in your machine, there isn't
much point in using this driver and you should say N. If you get
random kernel OOPSes or reboots that don't seem to be related to
anything, try disabling/enabling this option (or disabling/enabling
APM in your BIOS).
endmenu
source "net/Kconfig"
arch/arm/common/sharpsl_pm.c
+1 -1
View File
@@ -27,7 +27,7 @@
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <asm/apm.h>
#include <asm/apm-emulation.h>
#include <asm/arch/pm.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/sharpsl.h>
arch/arm/kernel/Makefile
-1
View File
@@ -10,7 +10,6 @@ obj-y := compat.o entry-armv.o entry-common.o irq.o \
process.o ptrace.o semaphore.o setup.o signal.o sys_arm.o \
time.o traps.o
obj-$(CONFIG_APM) += apm.o
obj-$(CONFIG_ISA_DMA_API) += dma.o
obj-$(CONFIG_ARCH_ACORN) += ecard.o
obj-$(CONFIG_FIQ) += fiq.o
arch/arm/mach-pxa/corgi_pm.c
+1 -1
View File
@@ -16,7 +16,7 @@
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <asm/apm.h>
#include <asm/apm-emulation.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
arch/arm/mach-pxa/sharpsl_pm.c
+1 -1
View File
@@ -23,7 +23,7 @@
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/apm.h>
#include <asm/apm-emulation.h>
#include <asm/arch/pm.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/sharpsl.h>
arch/arm/mach-pxa/spitz_pm.c
+1 -1
View File
@@ -16,7 +16,7 @@
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <asm/apm.h>
#include <asm/apm-emulation.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
arch/mips/Kconfig
+7 -27
View File
@@ -934,6 +934,9 @@ config CPU_LITTLE_ENDIAN
endchoice
config SYS_SUPPORTS_APM_EMULATION
bool
config SYS_SUPPORTS_BIG_ENDIAN
bool
@@ -1001,6 +1004,7 @@ config SOC_AU1X00
bool
select SYS_HAS_CPU_MIPS32_R1
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_APM_EMULATION
config PNX8550
bool
@@ -2071,35 +2075,11 @@ config BINFMT_ELF32
bool
default y if MIPS32_O32 || MIPS32_N32
config PM
bool "Power Management support (EXPERIMENTAL)"
depends on EXPERIMENTAL && SOC_AU1X00
endmenu
config APM
tristate "Advanced Power Management Emulation"
depends on PM
---help---
APM is a BIOS specification for saving power using several different
techniques. This is mostly useful for battery powered systems with
APM compliant BIOSes. If you say Y here, the system time will be
reset after a RESUME operation, the /proc/apm device will provide
battery status information, and user-space programs will receive
notification of APM "events" (e.g. battery status change).
menu "Power management options"
In order to use APM, you will need supporting software. For location
and more information, read <file:Documentation/pm.txt> and the
Battery Powered Linux mini-HOWTO, available from
<http://www.tldp.org/docs.html#howto>.
This driver does not spin down disk drives (see the hdparm(8)
manpage ("man 8 hdparm") for that), and it doesn't turn off
VESA-compliant "green" monitors.
Generally, if you don't have a battery in your machine, there isn't
much point in using this driver and you should say N. If you get
random kernel OOPSes or reboots that don't seem to be related to
anything, try disabling/enabling this option (or disabling/enabling
APM in your BIOS).
source "kernel/power/Kconfig"
endmenu
arch/mips/kernel/Makefile
-2
View File
@@ -14,8 +14,6 @@ binfmt_irix-objs := irixelf.o irixinv.o irixioctl.o irixsig.o \
obj-$(CONFIG_STACKTRACE) += stacktrace.o
obj-$(CONFIG_MODULES) += mips_ksyms.o module.o
obj-$(CONFIG_APM) += apm.o
obj-$(CONFIG_CPU_R3000) += r2300_fpu.o r2300_switch.o
obj-$(CONFIG_CPU_TX39XX) += r2300_fpu.o r2300_switch.o
obj-$(CONFIG_CPU_TX49XX) += r4k_fpu.o r4k_switch.o
arch/mips/kernel/apm.c
-604
View File
File diff suppressed because it is too large Load Diff
arch/sh/Kconfig
+4 -3
View File
@@ -48,6 +48,9 @@ config GENERIC_IOMAP
config GENERIC_TIME
def_bool n
config SYS_SUPPORTS_APM_EMULATION
bool
config ARCH_MAY_HAVE_PC_FDC
bool
@@ -126,6 +129,7 @@ config SH_7751_SYSTEMH
config SH_HP6XX
bool "HP6XX"
select SYS_SUPPORTS_APM_EMULATION
help
Select HP6XX if configuring for a HP jornada HP6xx.
More information (hardware only) at
@@ -694,9 +698,6 @@ depends on EXPERIMENTAL
source kernel/power/Kconfig
config APM
bool "Advanced Power Management Emulation"
depends on PM
endmenu
source "net/Kconfig"
arch/sh/boards/hp6xx/hp6xx_apm.c
+24 -44
View File
@@ -7,12 +7,11 @@
* modify it under the terms of the GNU General Public License.
*/
#include <linux/module.h>
#include <linux/apm_bios.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/io.h>
#include <asm/apm.h>
#include <linux/apm-emulation.h>
#include <linux/io.h>
#include <asm/adc.h>
#include <asm/hp6xx.h>
@@ -27,60 +26,41 @@
#define MODNAME "hp6x0_apm"
static int hp6x0_apm_get_info(char *buf, char **start, off_t fpos, int length)
static void hp6x0_apm_get_power_status(struct apm_power_info *info)
{
int battery, backup, charging, percentage;
u8 pgdr;
char *p;
int battery_status;
int battery_flag;
int ac_line_status;
int time_units = APM_BATTERY_LIFE_UNKNOWN;
int battery = adc_single(ADC_CHANNEL_BATTERY);
int backup = adc_single(ADC_CHANNEL_BACKUP);
int charging = adc_single(ADC_CHANNEL_CHARGE);
int percentage;
battery = adc_single(ADC_CHANNEL_BATTERY);
backup = adc_single(ADC_CHANNEL_BACKUP);
charging = adc_single(ADC_CHANNEL_CHARGE);
percentage = 100 * (battery - HP680_BATTERY_MIN) /
(HP680_BATTERY_MAX - HP680_BATTERY_MIN);
ac_line_status = (battery > HP680_BATTERY_AC_ON) ?
info->ac_line_status = (battery > HP680_BATTERY_AC_ON) ?
APM_AC_ONLINE : APM_AC_OFFLINE;
p = buf;
pgdr = ctrl_inb(SH7709_PGDR);
if (pgdr & PGDR_MAIN_BATTERY_OUT) {
battery_status = APM_BATTERY_STATUS_NOT_PRESENT;
battery_flag = 0x80;
percentage = -1;
} else if (charging < 8 ) {
battery_status = APM_BATTERY_STATUS_CHARGING;
battery_flag = 0x08;
ac_line_status = 0xff;
info->battery_status = APM_BATTERY_STATUS_NOT_PRESENT;
info->battery_flag = 0x80;
} else if (charging < 8) {
info->battery_status = APM_BATTERY_STATUS_CHARGING;
info->battery_flag = 0x08;
info->ac_line_status = 0xff;
} else if (percentage <= APM_CRITICAL) {
battery_status = APM_BATTERY_STATUS_CRITICAL;
battery_flag = 0x04;
info->battery_status = APM_BATTERY_STATUS_CRITICAL;
info->battery_flag = 0x04;
} else if (percentage <= APM_LOW) {
battery_status = APM_BATTERY_STATUS_LOW;
battery_flag = 0x02;
info->battery_status = APM_BATTERY_STATUS_LOW;
info->battery_flag = 0x02;
} else {
battery_status = APM_BATTERY_STATUS_HIGH;
battery_flag = 0x01;
info->battery_status = APM_BATTERY_STATUS_HIGH;
info->battery_flag = 0x01;
}
p += sprintf(p, "1.0 1.2 0x%02x 0x%02x 0x%02x 0x%02x %d%% %d %s\n",
APM_32_BIT_SUPPORT,
ac_line_status,
battery_status,
battery_flag,
percentage,
time_units,
"min");
p += sprintf(p, "bat=%d backup=%d charge=%d\n",
battery, backup, charging);
return p - buf;
info->units = 0;
}
static irqreturn_t hp6x0_apm_interrupt(int irq, void *dev)
@@ -96,14 +76,14 @@ static int __init hp6x0_apm_init(void)
int ret;
ret = request_irq(HP680_BTN_IRQ, hp6x0_apm_interrupt,
IRQF_DISABLED, MODNAME, 0);
IRQF_DISABLED, MODNAME, NULL);
if (unlikely(ret < 0)) {
printk(KERN_ERR MODNAME ": IRQ %d request failed\n",
HP680_BTN_IRQ);
return ret;
}
apm_get_info = hp6x0_apm_get_info;
apm_get_power_status = hp6x0_apm_get_power_status;
return ret;
}
@@ -111,7 +91,7 @@ static int __init hp6x0_apm_init(void)
static void __exit hp6x0_apm_exit(void)
{
free_irq(HP680_BTN_IRQ, 0);
apm_get_info = 0;
apm_get_info = NULL;
}
module_init(hp6x0_apm_init);
arch/sh/kernel/Makefile
-1
View File
@@ -19,6 +19,5 @@ obj-$(CONFIG_SH_CPU_FREQ) += cpufreq.o
obj-$(CONFIG_MODULES) += module.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
obj-$(CONFIG_APM) += apm.o
obj-$(CONFIG_PM) += pm.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
arch/sh/kernel/apm.c
-538
View File
File diff suppressed because it is too large Load Diff
drivers/char/Makefile
+2
View File
@@ -60,6 +60,8 @@ obj-$(CONFIG_BRIQ_PANEL) += briq_panel.o
obj-$(CONFIG_PRINTER) += lp.o
obj-$(CONFIG_TIPAR) += tipar.o
obj-$(CONFIG_APM_EMULATION) += apm-emulation.o
obj-$(CONFIG_DTLK) += dtlk.o
obj-$(CONFIG_R3964) += n_r3964.o
obj-$(CONFIG_APPLICOM) += applicom.o
arch/arm/kernel/apm.c → drivers/char/apm-emulation.c
+4 -4
View File
@@ -1,5 +1,5 @@
/*
* bios-less APM driver for ARM Linux
* bios-less APM driver for ARM Linux
* Jamey Hicks <jamey@crl.dec.com>
* adapted from the APM BIOS driver for Linux by Stephen Rothwell (sfr@linuxcare.com)
*
@@ -19,6 +19,7 @@
#include <linux/capability.h>
#include <linux/sched.h>
#include <linux/pm.h>
#include <linux/apm-emulation.h>
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/list.h>
@@ -27,7 +28,6 @@
#include <linux/kthread.h>
#include <linux/delay.h>
#include <asm/apm.h> /* apm_power_info */
#include <asm/system.h>
/*
@@ -225,7 +225,7 @@ static void apm_suspend(void)
list_for_each_entry(as, &apm_user_list, list) {
if (as->suspend_state == SUSPEND_WAIT ||
as->suspend_state == SUSPEND_ACKED) {
as->suspend_result = err;
as->suspend_result = err;
as->suspend_state = SUSPEND_DONE;
}
}
@@ -529,7 +529,7 @@ static int apm_get_info(char *buf, char **start, off_t fpos, int length)
info.battery_flag, info.battery_life,
info.time, units);
return ret;
return ret;
}
#endif
include/asm-arm/apm.h
-64
View File
@@ -1,64 +0,0 @@
/* -*- linux-c -*-
*
* (C) 2003 zecke@handhelds.org
*
* GPL version 2
*
* based on arch/arm/kernel/apm.c
* factor out the information needed by architectures to provide
* apm status
*
*
*/
#ifndef ARM_ASM_SA1100_APM_H
#define ARM_ASM_SA1100_APM_H
#include <linux/apm_bios.h>
/*
* This structure gets filled in by the machine specific 'get_power_status'
* implementation. Any fields which are not set default to a safe value.
*/
struct apm_power_info {
unsigned char ac_line_status;
#define APM_AC_OFFLINE 0
#define APM_AC_ONLINE 1
#define APM_AC_BACKUP 2
#define APM_AC_UNKNOWN 0xff
unsigned char battery_status;
#define APM_BATTERY_STATUS_HIGH 0
#define APM_BATTERY_STATUS_LOW 1
#define APM_BATTERY_STATUS_CRITICAL 2
#define APM_BATTERY_STATUS_CHARGING 3
#define APM_BATTERY_STATUS_NOT_PRESENT 4
#define APM_BATTERY_STATUS_UNKNOWN 0xff
unsigned char battery_flag;
#define APM_BATTERY_FLAG_HIGH (1 << 0)
#define APM_BATTERY_FLAG_LOW (1 << 1)
#define APM_BATTERY_FLAG_CRITICAL (1 << 2)
#define APM_BATTERY_FLAG_CHARGING (1 << 3)
#define APM_BATTERY_FLAG_NOT_PRESENT (1 << 7)
#define APM_BATTERY_FLAG_UNKNOWN 0xff
int battery_life;
int time;
int units;
#define APM_UNITS_MINS 0
#define APM_UNITS_SECS 1
#define APM_UNITS_UNKNOWN -1
};
/*
* This allows machines to provide their own "apm get power status" function.
*/
extern void (*apm_get_power_status)(struct apm_power_info *);
/*
* Queue an event (APM_SYS_SUSPEND or APM_CRITICAL_SUSPEND)
*/
void apm_queue_event(apm_event_t event);
#endif
include/asm-sh/apm.h
-46
View File
@@ -1,46 +0,0 @@
/*
* Copyright 2006 (c) Andriy Skulysh <askulysh@gmail.com>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
*/
#ifndef __ASM_SH_APM_H
#define __ASM_SH_APM_H
#define APM_AC_OFFLINE 0
#define APM_AC_ONLINE 1
#define APM_AC_BACKUP 2
#define APM_AC_UNKNOWN 0xff
#define APM_BATTERY_STATUS_HIGH 0
#define APM_BATTERY_STATUS_LOW 1
#define APM_BATTERY_STATUS_CRITICAL 2
#define APM_BATTERY_STATUS_CHARGING 3
#define APM_BATTERY_STATUS_NOT_PRESENT 4
#define APM_BATTERY_STATUS_UNKNOWN 0xff
#define APM_BATTERY_LIFE_UNKNOWN 0xFFFF
#define APM_BATTERY_LIFE_MINUTES 0x8000
#define APM_BATTERY_LIFE_VALUE_MASK 0x7FFF
#define APM_BATTERY_FLAG_HIGH (1 << 0)
#define APM_BATTERY_FLAG_LOW (1 << 1)
#define APM_BATTERY_FLAG_CRITICAL (1 << 2)
#define APM_BATTERY_FLAG_CHARGING (1 << 3)
#define APM_BATTERY_FLAG_NOT_PRESENT (1 << 7)
#define APM_BATTERY_FLAG_UNKNOWN 0xff
#define APM_UNITS_MINS 0
#define APM_UNITS_SECS 1
#define APM_UNITS_UNKNOWN -1
extern int (*apm_get_info)(char *buf, char **start, off_t fpos, int length);
extern int apm_suspended;
void apm_queue_event(apm_event_t event);
#endif
include/asm-mips/apm.h → include/linux/apm-emulation.h
+3 -5
View File
@@ -7,11 +7,9 @@
* based on arch/arm/kernel/apm.c
* factor out the information needed by architectures to provide
* apm status
*
*
*/
#ifndef MIPS_ASM_SA1100_APM_H
#define MIPS_ASM_SA1100_APM_H
#ifndef __LINUX_APM_EMULATION_H
#define __LINUX_APM_EMULATION_H
#include <linux/apm_bios.h>
@@ -61,4 +59,4 @@ extern void (*apm_get_power_status)(struct apm_power_info *);
*/
void apm_queue_event(apm_event_t event);
#endif
#endif /* __LINUX_APM_EMULATION_H */
kernel/power/Kconfig
+26
View File
@@ -131,3 +131,29 @@ config SUSPEND_SMP
bool
depends on HOTPLUG_CPU && X86 && PM
default y
config APM_EMULATION
tristate "Advanced Power Management Emulation"
depends on PM && SYS_SUPPORTS_APM_EMULATION
help
APM is a BIOS specification for saving power using several different
techniques. This is mostly useful for battery powered laptops with
APM compliant BIOSes. If you say Y here, the system time will be
reset after a RESUME operation, the /proc/apm device will provide
battery status information, and user-space programs will receive
notification of APM "events" (e.g. battery status change).
In order to use APM, you will need supporting software. For location
and more information, read <file:Documentation/pm.txt> and the
Battery Powered Linux mini-HOWTO, available from
<http://www.tldp.org/docs.html#howto>.
This driver does not spin down disk drives (see the hdparm(8)
manpage ("man 8 hdparm") for that), and it doesn't turn off
VESA-compliant "green" monitors.
Generally, if you don't have a battery in your machine, there isn't
much point in using this driver and you should say N. If you get
random kernel OOPSes or reboots that don't seem to be related to
anything, try disabling/enabling this option (or disabling/enabling
APM in your BIOS).