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27 results

lp.c

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  • Forked from card10 / firmware
    Source project has a limited visibility.
    lp.c 7.23 KiB
    
    // FIXME: Copied from ME11, removed RAM shutdown functions, needs review
    // FIXME: Needs copyright header
    
    #include "lp.h"
    #include "pwrseq_regs.h"
    #include "mxc_errors.h"
    #include "gcr_regs.h"
    #include "mxc_config.h"
    #include "mxc_sys.h"
    #include "tmr_utils.h"
    #include "mcr_regs.h"
    
    void LP_ClearWakeStatus(void)
    {
        /* Write 1 to clear */
        MXC_PWRSEQ->lpwkst0 = 0xFFFFFFFF;
        MXC_PWRSEQ->lpwkst1 = 0xFFFFFFFF;
        MXC_PWRSEQ->lpwkst2 = 0xFFFFFFFF;
        MXC_PWRSEQ->lpwkst3 = 0xFFFFFFFF;
        MXC_PWRSEQ->lppwst  = 0xFFFFFFFF;
    }
    
    void LP_EnableRTCAlarmWakeup(void)
    {
        MXC_GCR->pm |= MXC_F_GCR_PM_RTCWKEN;
    }
    
    void LP_DisableRTCAlarmWakeup(void)
    {
        MXC_GCR->pm &= ~MXC_F_GCR_PM_RTCWKEN;
    }
    
    void LP_EnableGPIOWakeup(gpio_cfg_t *wu_pins)
    {
        MXC_GCR->pm |= MXC_F_GCR_PM_GPIOWKEN;
        switch (wu_pins->port) {
            case PORT_0:
                MXC_PWRSEQ->lpwken0 |= wu_pins->mask;
                break;
            case PORT_1:
                MXC_PWRSEQ->lpwken1 |= wu_pins->mask;
        }
    }
    
    void LP_DisableGPIOWakeup(gpio_cfg_t *wu_pins)
    {
        switch (wu_pins->port) {
            case PORT_0:
                MXC_PWRSEQ->lpwken0 &= ~wu_pins->mask;
                break;
            case PORT_1:
                MXC_PWRSEQ->lpwken1 &= ~wu_pins->mask;
        }
        
        if (MXC_PWRSEQ->lpwken1 == 0 && MXC_PWRSEQ->lpwken0 == 0) {
            MXC_GCR->pm &= ~MXC_F_GCR_PM_GPIOWKEN;
        }
    }
    
    void LP_SysRam0LightSleep(void)
    {
        MXC_GCR->memckcn |= MXC_F_GCR_MEMCKCN_SYSRAM0LS;   
    }
    
    void LP_SysRam1LightSleep(void)
    {
        MXC_GCR->memckcn |= MXC_F_GCR_MEMCKCN_SYSRAM1LS;   
    }