C++ (Cpp) piix_tune_chipset Examples

Example #1

File: piix.c Project: ivucica/linux

static int piix_config_drive_for_dma (ide_drive_t *drive)
{
	u8 speed = ide_dma_speed(drive, piix_ratemask(drive));

	/*
	 * If no DMA speed was available or the chipset has DMA bugs
	 * then disable DMA and use PIO
	 */
	if (!speed || no_piix_dma)
		return 0;

	(void) piix_tune_chipset(drive, speed);
	return ide_dma_enable(drive);
}

Example #2

File: piix.c Project: FatSunHYS/OSCourseDesign

static int piix_config_drive_for_dma (ide_drive_t *drive)
{
	u8 speed = ide_dma_speed(drive, piix_ratemask(drive));
	
	/* Some ICH devices cannot support DMA mode 0 */
	if(speed == XFER_MW_DMA_0 && piix_faulty_dma0(HWIF(drive)))
		speed = 0;

	/* If no DMA speed was available or the chipset has DMA bugs
	   then disable DMA and use PIO */
	   
	if (!speed || no_piix_dma) {
		u8 tspeed = ide_get_best_pio_mode(drive, 255, 5, NULL);
		speed = piix_dma_2_pio(XFER_PIO_0 + tspeed);
	}

	(void) piix_tune_chipset(drive, speed);
	return ide_dma_enable(drive);
}