diff options
| author | Kristoffer Ericson <kristoffer.ericson@gmail.com> | 2008-03-04 23:09:25 -0800 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-03-06 11:54:17 +0900 |
| commit | 8b03c040e4efaaad3fc09f07f6af6e449205c75a (patch) | |
| tree | cdb0c3fc9ab825463fc130c4deb3cc458913f56f /arch | |
| parent | 56546b18969eb808af0c1a6ff68988678bd0a8b7 (diff) | |
| download | linux-8b03c040e4efaaad3fc09f07f6af6e449205c75a.tar.bz2 | |
sh: hp6xx: Correct APM output.
This patch fixes the old non-verbose hp6xx apm code and enables some
very basic apm output. We now get percentage (battery) output
and basic time estimate.
Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sh/boards/hp6xx/hp6xx_apm.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/arch/sh/boards/hp6xx/hp6xx_apm.c b/arch/sh/boards/hp6xx/hp6xx_apm.c index 640ca2a74f16..76b6776235df 100644 --- a/arch/sh/boards/hp6xx/hp6xx_apm.c +++ b/arch/sh/boards/hp6xx/hp6xx_apm.c @@ -2,6 +2,7 @@ * bios-less APM driver for hp680 * * Copyright 2005 (c) Andriy Skulysh <askulysh@gmail.com> + * Copyright 2008 (c) Kristoffer Ericson <kristoffer.ericson@gmail.com> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License. @@ -15,11 +16,11 @@ #include <asm/adc.h> #include <asm/hp6xx.h> -#define SH7709_PGDR 0xa400012c - +/* percentage values */ #define APM_CRITICAL 10 #define APM_LOW 30 +/* resonably sane values */ #define HP680_BATTERY_MAX 898 #define HP680_BATTERY_MIN 486 #define HP680_BATTERY_AC_ON 1023 @@ -38,17 +39,26 @@ static void hp6x0_apm_get_power_status(struct apm_power_info *info) percentage = 100 * (battery - HP680_BATTERY_MIN) / (HP680_BATTERY_MAX - HP680_BATTERY_MIN); + /* % of full battery */ + info->battery_life = percentage; + + /* We want our estimates in minutes */ + info->units = 0; + + /* Extremely(!!) rough estimate, we will replace this with a datalist later on */ + info->time = (2 * battery); + info->ac_line_status = (battery > HP680_BATTERY_AC_ON) ? APM_AC_ONLINE : APM_AC_OFFLINE; - pgdr = ctrl_inb(SH7709_PGDR); + pgdr = ctrl_inb(PGDR); if (pgdr & PGDR_MAIN_BATTERY_OUT) { 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; + info->ac_line_status = 0x01; } else if (percentage <= APM_CRITICAL) { info->battery_status = APM_BATTERY_STATUS_CRITICAL; info->battery_flag = 0x04; @@ -59,8 +69,6 @@ static void hp6x0_apm_get_power_status(struct apm_power_info *info) info->battery_status = APM_BATTERY_STATUS_HIGH; info->battery_flag = 0x01; } - - info->units = 0; } static irqreturn_t hp6x0_apm_interrupt(int irq, void *dev) |