LXR linux/arch/arm/mach-s3c24xx/include/mach/dma.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Copyright (C) 2003-2006 Simtec Electronics
   4 *      Ben Dooks <ben@simtec.co.uk>
   5 *
   6 * Samsung S3C24XX DMA support
   7 */
   8
   9#ifndef __ASM_ARCH_DMA_H
  10#define __ASM_ARCH_DMA_H __FILE__
  11
  12#include <linux/device.h>
  13
  14/* We use `virtual` dma channels to hide the fact we have only a limited
  15 * number of DMA channels, and not of all of them (dependent on the device)
  16 * can be attached to any DMA source. We therefore let the DMA core handle
  17 * the allocation of hardware channels to clients.
  18*/
  19
  20enum dma_ch {
  21        DMACH_XD0 = 0,
  22        DMACH_XD1,
  23        DMACH_SDI,
  24        DMACH_SPI0,
  25        DMACH_SPI1,
  26        DMACH_UART0,
  27        DMACH_UART1,
  28        DMACH_UART2,
  29        DMACH_TIMER,
  30        DMACH_I2S_IN,
  31        DMACH_I2S_OUT,
  32        DMACH_PCM_IN,
  33        DMACH_PCM_OUT,
  34        DMACH_MIC_IN,
  35        DMACH_USB_EP1,
  36        DMACH_USB_EP2,
  37        DMACH_USB_EP3,
  38        DMACH_USB_EP4,
  39        DMACH_UART0_SRC2,       /* s3c2412 second uart sources */
  40        DMACH_UART1_SRC2,
  41        DMACH_UART2_SRC2,
  42        DMACH_UART3,            /* s3c2443 has extra uart */
  43        DMACH_UART3_SRC2,
  44        DMACH_SPI0_TX,          /* s3c2443/2416/2450 hsspi0 */
  45        DMACH_SPI0_RX,          /* s3c2443/2416/2450 hsspi0 */
  46        DMACH_SPI1_TX,          /* s3c2443/2450 hsspi1 */
  47        DMACH_SPI1_RX,          /* s3c2443/2450 hsspi1 */
  48        DMACH_MAX,              /* the end entry */
  49};
  50
  51#endif /* __ASM_ARCH_DMA_H */
  52