Esempi in C++ (Cpp) per smbus_delay

Esempio n. 1

File: smbus_common.c Progetto: tidatida/coreboot

static int smbus_wait_until_done(u16 smbus_base)
{
	unsigned loops = SMBUS_TIMEOUT;
	unsigned char byte;
	do {
		smbus_delay();
		if (--loops == 0)
			break;
		byte = inb(smbus_base + SMBHSTSTAT);
	} while ((byte & 1) || (byte & ~((1 << 6) | (1 << 0))) == 0);
	return loops ? 0 : -1;
}

Esempio n. 2

File: early_smbus.c Progetto: 0ida/coreboot

/** \brief block until the SMBus is no longer busy, or it times out
 *
 * \param smbus_base IO base address of the SMBus
 */
static int smbus_wait_until_ready(u16 smbus_base)
{
	unsigned loops = SMBUS_TIMEOUT;
	unsigned char byte;
	do {
		smbus_delay();
		if (--loops == 0)
			break;
		byte = inb(smbus_base + SMBHSTSTAT);
	} while (byte & HSTSTS_HOST_BUSY);
	return loops ? 0 : -1;
}

Esempio n. 3

File: early_smbus.c Progetto: XVilka/coreboot

static int smbus_wait_until_active(void)
{
	unsigned long loops;
	loops = SMBUS_TIMEOUT;
	do {
		unsigned char val;
		smbus_delay();
		val = inb(SMBUS_IO_BASE + SMBHSTSTAT);
		if ((val & 1)) {
			break;
		}
	} while (--loops);
	return loops ? 0 : -4;
}

Esempio n. 4

File: early_smbus.c Progetto: Godkey/coreboot

static int smbus_wait_until_done(void)
{
	unsigned long loops;
	unsigned char byte;
	loops = SMBUS_TIMEOUT;
	do {
		smbus_delay();

		byte = inb(SMBUS_IO_BASE + SMBHSTSTAT);
		if (byte & 1)
			break;

	} while(--loops);
	return loops?0:-1;
}

Esempio n. 5

File: smbus.c Progetto: AdriDlu/coreboot

int smbus_check_stop_condition(unsigned smbus_io_base)
{
	unsigned char val;
	unsigned long loops;
	loops = SMBUS_TIMEOUT;
	/* check for SDA status */
	do {
		smbus_delay();
		val = inb(smbus_io_base + SMB_CTRL1);
		if ((val & SMB_CTRL1_STOP) == 0) {
			break;
		}
		outb((0x7F << 1) | SMB_CTRL2_ENABLE, smbus_io_base + SMB_CTRL2);
	} while (--loops);
	return loops ? 0 : SMBUS_WAIT_UNTIL_READY_TIMEOUT;
}

Esempio n. 6

File: smbus.c Progetto: AdriDlu/coreboot

static int smbus_wait(unsigned smbus_io_base)
{
	unsigned long loops = SMBUS_TIMEOUT;
	unsigned char val;

	do {
		smbus_delay();
		val = inb(smbus_io_base + SMB_STS);
		if ((val & SMB_STS_SDAST) != 0)
			break;
		if (val & (SMB_STS_BER | SMB_STS_NEGACK)) {
			/*printk(BIOS_DEBUG, "SMBUS WAIT ERROR %x\n", val); */
			return SMBUS_ERROR;
		}
	} while (--loops);
	return loops ? 0 : SMBUS_WAIT_UNTIL_READY_TIMEOUT;
}

Esempio n. 7

File: vt8231_early_smbus.c Progetto: kelsieflynn/coreboot-1

static int smbus_wait_until_ready(void)
{
	unsigned long loops;
	loops = SMBUS_TIMEOUT;
	do {
		unsigned char val;
		smbus_delay();
		val = inb(SMBUS_IO_BASE + SMBHSTSTAT);
		if ((val & 1) == 0) {
			break;
		}
		if (loops == (SMBUS_TIMEOUT / 2)) {
			outb(inb(SMBUS_IO_BASE + SMBHSTSTAT), SMBUS_IO_BASE + SMBHSTSTAT);
		}
	} while (--loops);
	return loops ? 0 : -2;
}

Esempio n. 8

File: early_smbus.c Progetto: XVilka/coreboot

static int smbus_wait_until_done(void)
{
	unsigned long loops;
	loops = SMBUS_TIMEOUT;
	do {
		unsigned char val;
		smbus_delay();

		val = inb(SMBUS_IO_BASE + SMBHSTSTAT);
		if ((val & 1) == 0) {
			break;
		}
		if ((val & ~((1 << 6) | (1 << 0))) != 0) {
			break;
		}
	} while (--loops);
	return loops ? 0 : -3;
}

Esempio n. 9

File: early_smbus.c Progetto: Godkey/coreboot

static int smbus_wait_until_ready(void)
{
	unsigned char c;
	unsigned long loops;
	loops = SMBUS_TIMEOUT;
	do {
		smbus_delay();
		c = inb(SMBUS_IO_BASE + SMBHSTSTAT);
		while((c & 1) == 1) {
			print_debug("c is ");
			print_debug_hex8(c);
			print_debug("\n");
			c = inb(SMBUS_IO_BASE + SMBHSTSTAT);
			/* nop */
		}

	} while(--loops);
	return loops?0:-1;
}