Messages in this thread Patch in this message | | | Date | Wed, 8 Feb 2006 13:05:43 +0000 | From | Matthew Garrett <> | Subject | [PATCH, RFC] [3/3] APM support for generic in-kernel AC status |
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This adds APM support for the generic in-kernel AC status code.
Signed-Off-By: Matthew Garrett <mjg59@srcf.ucam.org>
diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c index 6c8e483..e63f533 100644 --- a/arch/i386/kernel/apm.c +++ b/arch/i386/kernel/apm.c @@ -1627,6 +1627,18 @@ static int do_open(struct inode * inode, return 0; } +static int apm_get_online_status(void) +{ + unsigned short bx; + unsigned short cx; + unsigned short dx; + + if (apm_get_power_status(&bx, &cx, &dx)) + return 0; + + return ((bx >> 8) & 0xff); +}; + static int apm_get_info(char *buf, char **start, off_t fpos, int length) { char * p; @@ -2372,6 +2384,8 @@ static int __init apm_init(void) misc_register(&apm_device); + pm_set_ac_status(apm_get_online_status); + if (HZ != 100) idle_period = (idle_period * HZ) / 100; if (idle_threshold < 100) { @@ -2396,6 +2410,9 @@ static void __exit apm_exit(void) */ cpu_idle_wait(); } + + pm_set_ac_status(NULL); + if (((apm_info.bios.flags & APM_BIOS_DISENGAGED) == 0) && (apm_info.connection_version > 0x0100)) { error = apm_engage_power_management(APM_DEVICE_ALL, 0); -- Matthew Garrett | mjg59@srcf.ucam.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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