C++ (Cpp) max3110_write_data Exemples

Exemple #1

Fichier : early_printk_intel_mid.c Projet : mikuhatsune001/linux2.6.32

/* Slave select should be called in the read/write function */
static void early_mrst_spi_putc(char c)
{
	unsigned int timeout;
	u32 sr;

	timeout = MRST_SPI_TIMEOUT;
	/* Early putc needs to make sure the TX FIFO is not full */
	while (--timeout) {
		sr = dw_readl(pspi, sr);
		if (!(sr & SR_TF_NOT_FULL))
			cpu_relax();
		else
			break;
	}

	if (!timeout)
		pr_warn("MRST earlycon: timed out\n");
	else
		max3110_write_data(c);
}

Exemple #2

Fichier : spi-uart.c Projet : K900-MM/android_hardware_intel

/* slave select should be called in the read/write function */
static int spi_max3110_putc(char c)
{
	unsigned int timeout;
	u32 sr;

	timeout = MRST_SPI_TIMEOUT;
	/* early putc need make sure the TX FIFO is not full*/
	while (timeout--) {
		sr = pspi->sr;
		if (!(sr & SR_TF_NOT_FULL))
			continue;
		else
			break;
	}

	if (timeout == 0xffffffff)
		return -1;

	max3110_write_data(c);

	return 0;
}