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05baaca9da
Based on an idea by Kim Danielmeier, keep the backlight on if
TRIPLE_LCDBACKLIGHT environment variable is set.
Origin commit data
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Branch: master
Commit: 137948804b
Author: Stefan Seyfried <seife@tuxbox-git.slipkontur.de>
Date: 2012-03-04 (Sun, 04 Mar 2012)
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This commit was generated by Migit
88 lines
2.9 KiB
C++
88 lines
2.9 KiB
C++
#include <stdio.h>
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#include <cstdlib>
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#include "pwrmngr.h"
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#include "lt_debug.h"
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <avs/avs_inf.h>
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#include <tdpanel/lcdstuff.h>
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#define lt_debug(args...) _lt_debug(TRIPLE_DEBUG_PWRMNGR, this, args)
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#define lt_info(args...) _lt_info(TRIPLE_DEBUG_PWRMNGR, this, args)
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void cCpuFreqManager::Up(void) { lt_debug("%s\n", __FUNCTION__); }
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void cCpuFreqManager::Down(void) { lt_debug("%s\n", __FUNCTION__); }
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void cCpuFreqManager::Reset(void) { lt_debug("%s\n", __FUNCTION__); }
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/* those function dummies return true or "harmless" values */
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bool cCpuFreqManager::SetDelta(unsigned long) { lt_debug("%s\n", __FUNCTION__); return true; }
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unsigned long cCpuFreqManager::GetCpuFreq(void) { lt_debug("%s\n", __FUNCTION__); return 0; }
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unsigned long cCpuFreqManager::GetDelta(void) { lt_debug("%s\n", __FUNCTION__); return 0; }
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//
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cCpuFreqManager::cCpuFreqManager(void) { lt_debug("%s\n", __FUNCTION__); }
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bool cPowerManager::SetState(PWR_STATE) { lt_debug("%s\n", __FUNCTION__); return true; }
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bool cPowerManager::Open(void) { lt_debug("%s\n", __FUNCTION__); return true; }
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void cPowerManager::Close(void) { lt_debug("%s\n", __FUNCTION__); }
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//
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bool cPowerManager::SetStandby(bool Active, bool Passive)
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{
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lt_debug("%s(%d, %d)\n", __FUNCTION__, Active, Passive);
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return true;
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}
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bool cCpuFreqManager::SetCpuFreq(unsigned long f)
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{
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/* actually SetCpuFreq is used to determine if the system is in standby
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this is an "elegant" hack, because:
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* during a recording, cpu freq is kept "high", even if the box is sent to standby
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* the "SetStandby" call is made even if a recording is running
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On the TD, setting standby disables the frontend, so we must not do it
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if a recording is running.
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For now, the values in neutrino are hardcoded:
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* f == 0 => max => not standby
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* f == 50000000 => min => standby
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*/
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lt_debug("%s(%lu) => set standby = %s\n", __FUNCTION__, f, f?"true":"false");
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int fd = open("/dev/stb/tdsystem", O_RDONLY);
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if (fd < 0)
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{
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perror("open tdsystem");
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return false;
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}
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if (f)
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{
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ioctl(fd, IOC_AVS_SET_VOLUME, 31); /* mute AVS to avoid ugly noise */
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ioctl(fd, IOC_AVS_STANDBY_ENTER);
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if (getenv("TRIPLE_LCDBACKLIGHT"))
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{
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lt_info("%s: TRIPLE_LCDBACKLIGHT is set: keeping LCD backlight on\n", __func__);
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close(fd);
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fd = open("/dev/stb/tdlcd", O_RDONLY);
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if (fd < 0)
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lt_info("%s: open tdlcd error: %m\n", __func__);
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else
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ioctl(fd, IOC_LCD_BACKLIGHT_ON);
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}
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}
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else
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{
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ioctl(fd, IOC_AVS_SET_VOLUME, 31); /* mute AVS to avoid ugly noise */
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ioctl(fd, IOC_AVS_STANDBY_LEAVE);
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/* unmute will be done by cAudio::do_mute(). Ugly, but prevents pops */
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// ioctl(fd, IOC_AVS_SET_VOLUME, 0); /* max gain */
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}
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close(fd);
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return true;
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}
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//
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cPowerManager::cPowerManager(void) { lt_debug("%s\n", __FUNCTION__); }
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cPowerManager::~cPowerManager() { lt_debug("%s\n", __FUNCTION__); }
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