sys/rump/dev/wip/libusb/bus_dma.c

   1 /*      $NetBSD$        */
   2
   3 #include <sys/param.h>
   4 #include <sys/types.h>
   5 #include <sys/conf.h>
   6 #include <sys/device.h>
   7 #include <sys/kmem.h>
   8
   9 #include <machine/bus.h>
  10
  11 /*
  12  * bus dma "implementation" for rump.  needs "a little" more work
  13  */
  14
  15 int
  16 bus_dmamap_create(bus_dma_tag_t tag, bus_size_t sz, int flag, bus_size_t bsz,
  17         bus_size_t bsz2, int i, bus_dmamap_t *ptr)
  18 {
  19
  20         return 0;
  21 }
  22
  23 void
  24 bus_dmamap_destroy(bus_dma_tag_t tag, bus_dmamap_t map)
  25 {
  26
  27         panic("unimplemented %s", __func__);
  28 }
  29
  30 int
  31 bus_dmamap_load(bus_dma_tag_t t, bus_dmamap_t a, void *b, bus_size_t c,
  32         struct proc *d, int e)
  33 {
  34
  35         return 0;
  36 }
  37
  38 void
  39 bus_dmamap_unload(bus_dma_tag_t a, bus_dmamap_t b)
  40 {
  41
  42         panic("unimplemented %s", __func__);
  43 }
  44
  45 void
  46 bus_dmamap_sync(bus_dma_tag_t a, bus_dmamap_t b, bus_addr_t c,
  47         bus_size_t d, int e)
  48 {
  49
  50         panic("unimplemented %s", __func__);
  51 }
  52
  53 int
  54 bus_dmamem_alloc(bus_dma_tag_t tag, bus_size_t size, bus_size_t align,
  55         bus_size_t boundary, bus_dma_segment_t *segs, int nsegs,
  56         int *rsegs, int flags)
  57 {
  58
  59         *rsegs = nsegs;
  60         return 0;
  61 }
  62
  63 void
  64 bus_dmamem_free(bus_dma_tag_t a, bus_dma_segment_t *b, int c)
  65 {
  66
  67         panic("unimplemented %s", __func__);
  68 }
  69
  70 int
  71 bus_dmamem_map(bus_dma_tag_t tag, bus_dma_segment_t *segs, int nsegs,
  72                        size_t size, void **kvap, int flags)
  73 {
  74
  75         KASSERT(nsegs == 1);
  76         *kvap = kmem_alloc(size, KM_SLEEP);
  77         return 0;
  78 }
  79
  80 void
  81 bus_dmamem_unmap(bus_dma_tag_t a, void *kva, size_t b)
  82 {
  83
  84         panic("unimplemented %s", __func__);
  85 }