bool _backlight_init(void)
{
pmu_write(0x2a, 6);
pmu_write(0x28, 0x2e);
pmu_write(0x2b, 20);
_backlight_on();
return true;
}
void pmu_ldo_on_in_standby(unsigned int ldo, int onoff)
{
if (ldo < 4)
{
unsigned char newval = pmu_read(0x3B) & ~(1 << (2 * ldo));
if (onoff) newval |= 1 << (2 * ldo);
pmu_write(0x3B, newval);
}
else if (ldo < 8)
{
unsigned char newval = pmu_read(0x3C) & ~(1 << (2 * (ldo - 4)));
if (onoff) newval |= 1 << (2 * (ldo - 4));
pmu_write(0x3C, newval);
}
}
/*
* Do I2C/PMU writes to bring up SD card bus power
*
*/
void board_sdmmc_voltage_init(void)
{
/* Enable LDO5 with 3.3v for SDMMC3 */
pmu_write(PMU_REG_LDO5, PMU_LDO5(HIGH_POWER, 3300));
/* Switch the power on */
gpio_request(TEGRA_GPIO(J, 2), "EN_3V3_EMMC");
gpio_direction_output(TEGRA_GPIO(J, 2), 1);
}
bool_t pmu_init(void)
{
u8_t val;
iic_init();
if(pmu_read(0x31, &val))
pmu_write(0x31, val & 0xf8);
return TRUE;
}
int pmu_read_adc(unsigned int adc)
{
int data = 0;
mutex_lock(&pmu_adc_mutex);
pmu_write(0x54, 5 | (adc << 4));
while ((data & 0x80) == 0)
{
yield();
data = pmu_read(0x57);
}
int value = (pmu_read(0x55) << 2) | (data & 3);
mutex_unlock(&pmu_adc_mutex);
return value;
}
/* main init */
void pmu_init(void)
{
mutex_init(&pmu_adc_mutex);
queue_init(&pmu_queue, false);
create_thread(pmu_thread,
pmu_thread_stack, sizeof(pmu_thread_stack), 0,
"PMU" IF_PRIO(, PRIORITY_SYSTEM) IF_COP(, CPU));
/* configure PMU interrutps */
for (int i = 0; i < 6; i++)
ints_msk[i] = 0xff;
#if CONFIG_CHARGING
ints_msk[0] &= ~PCF5063X_INT1_ADPINS & /* FireWire */
~PCF5063X_INT1_ADPREM;
#endif
ints_msk[1] &= ~PCF5063X_INT2_EXTON2R & /* USB */
~PCF5063X_INT2_EXTON2F;
#ifdef IPOD_ACCESSORY_PROTOCOL
ints_msk[1] &= ~PCF5063X_INT2_EXTON3R & /* Accessory */
~PCF5063X_INT2_EXTON3F;
#endif
ints_msk[5] &= ~PCF50635_INT6_GPIO2; /* Holdswitch */
pmu_write_multiple(PCF5063X_REG_INT1M, 5, ints_msk);
pmu_write(PCF50635_REG_INT6M, ints_msk[5]);
/* clear all */
unsigned char ints[5];
pmu_read_multiple(PCF5063X_REG_INT1, 5, ints);
pmu_read(PCF50635_REG_INT6);
/* get initial values */
#if CONFIG_CHARGING
pmu_read_inputs_mbcs();
#endif
pmu_read_inputs_ooc();
pmu_read_inputs_gpio();
eint_register(&pmu_eint);
}
static inline void software_reset(void)
{
uint16_t pmucnt2;
switch (current_cpu_type()) {
case CPU_VR4122:
case CPU_VR4131:
case CPU_VR4133:
pmucnt2 = pmu_read(PMUCNT2REG);
pmucnt2 |= SOFTRST;
pmu_write(PMUCNT2REG, pmucnt2);
break;
default:
set_c0_status(ST0_BEV | ST0_ERL);
change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
__flush_cache_all();
write_c0_wired(0);
__asm__("jr %0"::"r"(0xbfc00000));
break;
}
}
/* returns raw value, 8 or 10-bit resolution */
unsigned short pmu_read_adc(const struct pmu_adc_channel *ch)
{
mutex_lock(&pmu_adc_mutex);
pmu_write(PCF5063X_REG_ADCC3, ch->adcc3);
if (ch->bias_dly)
sleep(ch->bias_dly);
uint8_t buf[2] = { ch->adcc2, ch->adcc1 | PCF5063X_ADCC1_ADCSTART };
pmu_write_multiple(PCF5063X_REG_ADCC2, 2, buf);
int adcs3 = 0;
while (!(adcs3 & PCF5063X_ADCS3_ADCRDY))
{
yield();
adcs3 = pmu_read(PCF5063X_REG_ADCS3);
}
int raw = pmu_read(PCF5063X_REG_ADCS1);
if ((ch->adcc1 & PCF5063X_ADCC1_RES_MASK) == PCF5063X_ADCC1_RES_10BIT)
raw = (raw << 2) | (adcs3 & PCF5063X_ADCS3_ADCDAT1L_MASK);
mutex_unlock(&pmu_adc_mutex);
return raw;
}
void pmu_enter_standby(void)
{
pmu_write(0xc, 1);
}
void pmu_set_wake_condition(unsigned char condition)
{
pmu_write(0xd, condition);
}
void pmu_ldo_power_off(unsigned int ldo)
{
if (ldo > 6) return;
pmu_write(0x2e + (ldo << 1), 0);
}
void pmu_hdd_power(bool on)
{
pmu_write(0x1b, on ? 1 : 0);
}
void pmu_ldo_set_voltage(unsigned int ldo, unsigned char voltage)
{
if (ldo > 6) return;
pmu_write(0x2d + (ldo << 1), voltage);
}
void _backlight_off(void)
{
pmu_write(0x29, 0);
}
void _backlight_on(void)
{
pmu_write(0x29, 1);
}
void _backlight_set_brightness(int brightness)
{
pmu_write(0x28, brightness);
}
