Esempi in C++ (Cpp) per axp209_read

Esempio n. 1

File: axp209.c Progetto: angelbbs/sunxi-u-boot-ZX803

int axp209_set_dcdc2(int mvolt)
{
	int cfg = (mvolt - 700) / 25;
	int rc;
	u8 current;

	if (cfg < 0)
		cfg = 0;
	if (cfg > (1 << 6) - 1)
		cfg = (1 << 6) - 1;

	/* Do we really need to be this gentle? It has built-in voltage slope */
	while ((rc = axp209_read(AXP209_DCDC2_VOLTAGE, &current)) == 0 &&
	       current != cfg) {
		if (current < cfg)
			current++;
		else
			current--;

		rc = axp209_write(AXP209_DCDC2_VOLTAGE, current);
		if (rc)
			break;
	}

	return rc;
}

Esempio n. 2

File: axp209.c Progetto: angelbbs/sunxi-u-boot-ZX803

int axp209_set_ldo4(int mvolt)
{
	int cfg = (mvolt - 1800) / 100;
	int rc;
	static const int vindex[] = {
		1250, 1300, 1400, 1500, 1600, 1700, 1800, 1900, 2000, 2500,
		2700, 2800, 3000, 3100, 3200, 3300
	};
	u8 reg;

	/* Translate mvolt to register cfg value, requested <= selected */
	for (cfg = 0; mvolt < vindex[cfg] && cfg < 15; cfg++);

	rc = axp209_read(AXP209_LDO24_VOLTAGE, &reg);
	if (rc)
		return rc;

	/* LDO4 configuration is in lower 4 bits */
	reg = (reg & 0xf0) | (cfg << 0);
	rc = axp209_write(AXP209_LDO24_VOLTAGE, reg);
	if (rc)
		return rc;

	return 0;
}

Esempio n. 3

File: axp209.c Progetto: angelbbs/sunxi-u-boot-ZX803

int axp209_poweron_by_dc(void)
{
	u8 v;

	if (axp209_read(AXP209_POWER_STATUS, &v))
		return 0;
	return (v & AXP209_POWER_STATUS_ON_BY_DC);
}

Esempio n. 4

File: axp209.c Progetto: angelbbs/sunxi-u-boot-ZX803

int axp209_power_button(void)
{
	u8 v;

	if (axp209_read(AXP209_IRQ_STATUS5, &v))
		return 0;
	axp209_write(AXP209_IRQ_STATUS5, AXP209_IRQ5_PEK_DOWN);
	return v & AXP209_IRQ5_PEK_DOWN;
}

Esempio n. 5

File: axp209.c Progetto: lxmlx/pcduino-test

int axp209_init(void)
{
	u8 ver;
	int rc;

	rc = axp209_read(AXP209_CHIP_VERSION, &ver);
	if (rc)
		return rc;

	return 0;
}

Esempio n. 6

File: axp209.c Progetto: angelbbs/sunxi-u-boot-ZX803

void axp209_poweroff(void)
{
	u8 val;

	if (axp209_read(AXP209_SHUTDOWN, &val) != 0)
		return;

	val |= 1 << 7;

	if (axp209_write(AXP209_SHUTDOWN, val) != 0)
		return;

	udelay(10000);		/* wait for power to drain */
}

Esempio n. 7

File: axp209.c Progetto: angelbbs/sunxi-u-boot-ZX803

int axp209_set_dcdc3(int mvolt)
{
	int cfg = (mvolt - 700) / 25;
	u8 reg;
	int rc;

	if (cfg < 0)
		cfg = 0;
	if (cfg > (1 << 7) - 1)
		cfg = (1 << 7) - 1;

	rc = axp209_write(AXP209_DCDC3_VOLTAGE, cfg);
	rc |= axp209_read(AXP209_DCDC3_VOLTAGE, &reg);

	return rc;
}

Esempio n. 8

File: axp209.c Progetto: angelbbs/sunxi-u-boot-ZX803

int axp209_init(void)
{
	u8 ver;
	int rc;

	rc = axp209_read(AXP209_CHIP_VERSION, &ver);
	if (rc)
		return rc;

	/* Low 4 bits is chip version */
	ver &= 0x0f;

	if (ver != 0x1)
		return -1;

	return 0;
}

Esempio n. 9

File: axp209.c Progetto: angelbbs/sunxi-u-boot-ZX803

int axp209_set_ldo2(int mvolt)
{
	int cfg = (mvolt - 1800) / 100;
	int rc;
	u8 reg;

	if (cfg < 0)
		cfg = 0;
	if (cfg > 15)
		cfg = 15;

	rc = axp209_read(AXP209_LDO24_VOLTAGE, &reg);
	if (rc)
		return rc;

	reg = (reg & 0x0f) | (cfg << 4);
	rc = axp209_write(AXP209_LDO24_VOLTAGE, reg);
	if (rc)
		return rc;

	return 0;
}