1 /* arch/arm/mach-s3c2410/include/mach/dma.h 2 * 3 * Copyright (C) 2003-2006 Simtec Electronics 4 * Ben Dooks <ben@simtec.co.uk> 5 * 6 * Samsung S3C24XX DMA support 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 */ 12 13 #ifndef __ASM_ARCH_DMA_H 14 #define __ASM_ARCH_DMA_H __FILE__ 15 16 #include <linux/device.h> 17 18 /* We use `virtual` dma channels to hide the fact we have only a limited 19 * number of DMA channels, and not of all of them (dependent on the device) 20 * can be attached to any DMA source. We therefore let the DMA core handle 21 * the allocation of hardware channels to clients. 22 */ 23 24 enum dma_ch { 25 DMACH_XD0 = 0, 26 DMACH_XD1, 27 DMACH_SDI, 28 DMACH_SPI0, 29 DMACH_SPI1, 30 DMACH_UART0, 31 DMACH_UART1, 32 DMACH_UART2, 33 DMACH_TIMER, 34 DMACH_I2S_IN, 35 DMACH_I2S_OUT, 36 DMACH_PCM_IN, 37 DMACH_PCM_OUT, 38 DMACH_MIC_IN, 39 DMACH_USB_EP1, 40 DMACH_USB_EP2, 41 DMACH_USB_EP3, 42 DMACH_USB_EP4, 43 DMACH_UART0_SRC2, /* s3c2412 second uart sources */ 44 DMACH_UART1_SRC2, 45 DMACH_UART2_SRC2, 46 DMACH_UART3, /* s3c2443 has extra uart */ 47 DMACH_UART3_SRC2, 48 DMACH_SPI0_TX, /* s3c2443/2416/2450 hsspi0 */ 49 DMACH_SPI0_RX, /* s3c2443/2416/2450 hsspi0 */ 50 DMACH_SPI1_TX, /* s3c2443/2450 hsspi1 */ 51 DMACH_SPI1_RX, /* s3c2443/2450 hsspi1 */ 52 DMACH_MAX, /* the end entry */ 53 }; 54 55 #endif /* __ASM_ARCH_DMA_H */ 56