Example #1
0
static void dma_init_write(struct NCR_ESP *esp, __u32 vaddress, int length)
{
    dma_cache_wback_inv ((unsigned long)phys_to_virt(vdma_log2phys(vaddress)), length);    
    vdma_disable ((int)esp->dregs);    
    vdma_set_mode ((int)esp->dregs, DMA_MODE_WRITE);
    vdma_set_addr ((int)esp->dregs, vaddress);
    vdma_set_count ((int)esp->dregs, length);
    vdma_enable ((int)esp->dregs);    
}
static void jazz_esp_send_dma_cmd(struct esp *esp, u32 addr, u32 esp_count,
				  u32 dma_count, int write, u8 cmd)
{
	BUG_ON(!(cmd & ESP_CMD_DMA));

	jazz_esp_write8(esp, (esp_count >> 0) & 0xff, ESP_TCLOW);
	jazz_esp_write8(esp, (esp_count >> 8) & 0xff, ESP_TCMED);
	vdma_disable ((int)esp->dma_regs);
	if (write)
		vdma_set_mode ((int)esp->dma_regs, DMA_MODE_READ);
	else
		vdma_set_mode ((int)esp->dma_regs, DMA_MODE_WRITE);

	vdma_set_addr ((int)esp->dma_regs, addr);
	vdma_set_count ((int)esp->dma_regs, dma_count);
	vdma_enable ((int)esp->dma_regs);

	scsi_esp_cmd(esp, cmd);
}
Example #3
0
static void jazz_fd_set_dma_mode(int channel, char mode)
{
	vdma_set_mode(JAZZ_FLOPPY_DMA, mode);
}