arch/arm/kernel/dma-vnc.c

   1 /*
   2  * arch/arm/kernel/dma-vnc.c
   3  *
   4  * Copyright (C) 1998 Russell King
   5  */
   6 #include <linux/sched.h>
   7 #include <linux/malloc.h>
   8 #include <linux/mman.h>
   9 #include <linux/init.h>
  10
  11 #include <asm/page.h>
  12 #include <asm/pgtable.h>
  13 #include <asm/dma.h>
  14 #include <asm/io.h>
  15 #include <asm/hardware.h>
  16
  17 #include "dma.h"
  18 #include "dma-isa.h"
  19
  20 int arch_request_dma(dmach_t channel, dma_t *dma, const char *dev_name)
  21 {
  22         if (channel < 8)
  23                 return isa_request_dma(channel, dma, dev_name);
  24         return -EINVAL;
  25 }
  26
  27 void arch_free_dma(dmach_t channel, dma_t *dma)
  28 {
  29         isa_free_dma(channel, dma);
  30 }
  31
  32 int arch_get_dma_residue(dmach_t channel, dma_t *dma)
  33 {
  34         return isa_get_dma_residue(channel, dma);
  35 }
  36
  37 void arch_enable_dma(dmach_t channel, dma_t *dma)
  38 {
  39         isa_enable_dma(channel, dma);
  40 }
  41
  42 void arch_disable_dma(dmach_t channel, dma_t *dma)
  43 {
  44         isa_disable_dma(channel, dma);
  45 }
  46
  47 __initfunc(void arch_dma_init(dma_t *dma))
  48 {
  49         /* Nothing to do */
  50 }
  51