arch/arm/mach-s3c6400/include/mach/dma.h

   1 /* linux/arch/arm/mach-s3c6400/include/mach/dma.h
   2  *
   3  * Copyright 2008 Openmoko, Inc.
   4  * Copyright 2008 Simtec Electronics
   5  *      Ben Dooks <ben@simtec.co.uk>
   6  *      http://armlinux.simtec.co.uk/
   7  *
   8  * S3C6400 - DMA support
   9  */
  10
  11 #ifndef __ASM_ARCH_DMA_H
  12 #define __ASM_ARCH_DMA_H __FILE__
  13
  14 #define S3C_DMA_CHANNELS        (16)
  15
  16 /* see mach-s3c2410/dma.h for notes on dma channel numbers */
  17
  18 /* Note, for the S3C64XX architecture we keep the DMACH_
  19  * defines in the order they are allocated to [S]DMA0/[S]DMA1
  20  * so that is easy to do DHACH_ -> DMA controller conversion
  21  */
  22 enum dma_ch {
  23         /* DMA0/SDMA0 */
  24         DMACH_UART0 = 0,
  25         DMACH_UART0_SRC2,
  26         DMACH_UART1,
  27         DMACH_UART1_SRC2,
  28         DMACH_UART2,
  29         DMACH_UART2_SRC2,
  30         DMACH_UART3,
  31         DMACH_UART3_SRC2,
  32         DMACH_PCM0_TX,
  33         DMACH_PCM0_RX,
  34         DMACH_I2S0_OUT,
  35         DMACH_I2S0_IN,
  36         DMACH_SPI0_TX,
  37         DMACH_SPI0_RX,
  38         DMACH_HSI_I2SV40_TX,
  39         DMACH_HSI_I2SV40_RX,
  40
  41         /* DMA1/SDMA1 */
  42         DMACH_PCM1_TX = 16,
  43         DMACH_PCM1_RX,
  44         DMACH_I2S1_OUT,
  45         DMACH_I2S1_IN,
  46         DMACH_SPI1_TX,
  47         DMACH_SPI1_RX,
  48         DMACH_AC97_PCMOUT,
  49         DMACH_AC97_PCMIN,
  50         DMACH_AC97_MICIN,
  51         DMACH_PWM,
  52         DMACH_IRDA,
  53         DMACH_EXTERNAL,
  54         DMACH_RES1,
  55         DMACH_RES2,
  56         DMACH_SECURITY_RX,      /* SDMA1 only */
  57         DMACH_SECURITY_TX,      /* SDMA1 only */
  58         DMACH_MAX               /* the end */
  59 };
  60
  61 static __inline__ int s3c_dma_has_circular(void)
  62 {
  63         /* we will be supporting ciruclar buffers as soon as we have DMA
  64          * engine support.
  65          */
  66         return 1;
  67 }
  68
  69 #define S3C2410_DMAF_CIRCULAR           (1 << 0)
  70
  71 #include <plat/dma.h>
  72
  73 #endif /* __ASM_ARCH_IRQ_H */