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https://github.com/tuxbox-neutrino/libstb-hal.git
synced 2025-08-26 23:13:16 +02:00
68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
#include <stdio.h>
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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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static const char * FILENAME = "pwrmngr.cpp";
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void cCpuFreqManager::Up(void) { lt_debug("%s:%s\n", FILENAME, __FUNCTION__); }
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void cCpuFreqManager::Down(void) { lt_debug("%s:%s\n", FILENAME, __FUNCTION__); }
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void cCpuFreqManager::Reset(void) { lt_debug("%s:%s\n", FILENAME, __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:%s\n", FILENAME, __FUNCTION__); return true; }
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unsigned long cCpuFreqManager::GetCpuFreq(void) { lt_debug("%s:%s\n", FILENAME, __FUNCTION__); return 0; }
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unsigned long cCpuFreqManager::GetDelta(void) { lt_debug("%s:%s\n", FILENAME, __FUNCTION__); return 0; }
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//
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cCpuFreqManager::cCpuFreqManager(void) { lt_debug("%s:%s\n", FILENAME, __FUNCTION__); }
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bool cPowerManager::SetState(PWR_STATE) { lt_debug("%s:%s\n", FILENAME, __FUNCTION__); return true; }
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bool cPowerManager::Open(void) { lt_debug("%s:%s\n", FILENAME, __FUNCTION__); return true; }
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void cPowerManager::Close(void) { lt_debug("%s:%s\n", FILENAME, __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:%s(%d, %d)\n", FILENAME, __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:%s(%lu)\n", FILENAME, __FUNCTION__, f);
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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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ioctl(fd, IOC_AVS_STANDBY_ENTER);
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else
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ioctl(fd, IOC_AVS_STANDBY_LEAVE);
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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:%s\n", FILENAME, __FUNCTION__); }
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cPowerManager::~cPowerManager() { lt_debug("%s:%s\n", FILENAME, __FUNCTION__); }
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