forked from rubenslte/android_kernel_samsung_msm8226
Steve Muckle
f132c6cf77
AU_LINUX_ANDROID_ICS.04.00.04.00.126 from msm-3.0. First parent is from google/android-3.4. * commit 'AU_LINUX_ANDROID_ICS.04.00.04.00.126': (8712 commits) PRNG: Device tree entry for qrng device. vidc:1080p: Set video core timeout value for Thumbnail mode msm: sps: improve the debugging support in SPS driver board-8064 msm: Overlap secure and non secure video firmware heaps. msm: clock: Add handoff ops for 7x30 and copper XO clocks msm_fb: display: Wait for external vsync before DTV IOMMU unmap msm: Fix ciruclar dependency in debug UART settings msm: gdsc: Add GDSC regulator driver for msm-copper defconfig: Enable Mobicore Driver. mobicore: Add mobicore driver. mobicore: rename variable to lower case. mobicore: rename folder. mobicore: add makefiles mobicore: initial import of kernel driver ASoC: msm: Add SLIMBUS_2_RX CPU DAI board-8064-gpio: Update FUNC for EPM SPI CS msm_fb: display: Remove chicken bit config during video playback mmc: msm_sdcc: enable the sanitize capability msm-fb: display: lm2 writeback support on mpq platfroms msm_fb: display: Disable LVDS phy & pll during panel off ... Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
/* kernel/power/consoleearlysuspend.c
|
|
*
|
|
* Copyright (C) 2005-2008 Google, Inc.
|
|
*
|
|
* This software is licensed under the terms of the GNU General Public
|
|
* License version 2, as published by the Free Software Foundation, and
|
|
* may be copied, distributed, and modified under those terms.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
*/
|
|
|
|
#include <linux/console.h>
|
|
#include <linux/earlysuspend.h>
|
|
#include <linux/kbd_kern.h>
|
|
#include <linux/module.h>
|
|
#include <linux/vt_kern.h>
|
|
#include <linux/wait.h>
|
|
|
|
#define EARLY_SUSPEND_CONSOLE (MAX_NR_CONSOLES-1)
|
|
|
|
static int orig_fgconsole;
|
|
static void console_early_suspend(struct early_suspend *h)
|
|
{
|
|
acquire_console_sem();
|
|
orig_fgconsole = fg_console;
|
|
if (vc_allocate(EARLY_SUSPEND_CONSOLE))
|
|
goto err;
|
|
if (set_console(EARLY_SUSPEND_CONSOLE))
|
|
goto err;
|
|
release_console_sem();
|
|
|
|
if (vt_waitactive(EARLY_SUSPEND_CONSOLE + 1))
|
|
pr_warning("console_early_suspend: Can't switch VCs.\n");
|
|
return;
|
|
err:
|
|
pr_warning("console_early_suspend: Can't set console\n");
|
|
release_console_sem();
|
|
}
|
|
|
|
static void console_late_resume(struct early_suspend *h)
|
|
{
|
|
int ret;
|
|
acquire_console_sem();
|
|
ret = set_console(orig_fgconsole);
|
|
release_console_sem();
|
|
if (ret) {
|
|
pr_warning("console_late_resume: Can't set console.\n");
|
|
return;
|
|
}
|
|
|
|
if (vt_waitactive(orig_fgconsole + 1))
|
|
pr_warning("console_late_resume: Can't switch VCs.\n");
|
|
}
|
|
|
|
static struct early_suspend console_early_suspend_desc = {
|
|
.level = EARLY_SUSPEND_LEVEL_STOP_DRAWING,
|
|
.suspend = console_early_suspend,
|
|
.resume = console_late_resume,
|
|
};
|
|
|
|
static int __init console_early_suspend_init(void)
|
|
{
|
|
register_early_suspend(&console_early_suspend_desc);
|
|
return 0;
|
|
}
|
|
|
|
static void __exit console_early_suspend_exit(void)
|
|
{
|
|
unregister_early_suspend(&console_early_suspend_desc);
|
|
}
|
|
|
|
module_init(console_early_suspend_init);
|
|
module_exit(console_early_suspend_exit);
|
|
|