minix/include/ddekit/resources.h

   1 #ifndef _DDEKIT_RESOURCES_H
   2 #define _DDEKIT_RESOURCES_H
   3
   4 #include <ddekit/ddekit.h>
   5 #include <ddekit/types.h>
   6
   7
   8 /*
   9  * request/release an isa DMA-channel
  10  */
  11
  12 int ddekit_request_dma(int nr);
  13 int ddekit_release_dma(int nr);
  14
  15 /*
  16  * request/release an io-port range starting at addr start, lenght of count
  17  */
  18 int ddekit_request_io(ddekit_addr_t start, ddekit_addr_t count);
  19 int ddekit_release_io(ddekit_addr_t start, ddekit_addr_t count);
  20
  21 /*
  22  * request an IO-Memory mapping from address start to vaddr of the length count
  23  */
  24 int ddekit_request_mem(ddekit_addr_t start, ddekit_addr_t count,
  25         ddekit_addr_t *vaddr);
  26 int ddekit_release_mem(ddekit_addr_t start, ddekit_addr_t count);
  27
  28 /**
  29  * Read I/O port (byte)
  30  *
  31  * \param port  port to read
  32  *
  33  * \return value read from port
  34  */
  35 unsigned char ddekit_inb(ddekit_addr_t port);
  36
  37 /**
  38  * Read I/O port (2-byte)
  39  *
  40  * \param port  port to read
  41  *
  42  * \return value read from port
  43  */
  44 unsigned short ddekit_inw(ddekit_addr_t port);
  45
  46 /**
  47  * Read I/O port (4-byte)
  48  *
  49  * \param port  port to read
  50  *
  51  * \return value read from port
  52  */
  53 unsigned long ddekit_inl(ddekit_addr_t port);
  54
  55 /**
  56  * Write I/O port (byte)
  57  *
  58  * \param port  port to write
  59  * \param val   value to write
  60  */
  61 void ddekit_outb(ddekit_addr_t port, unsigned char val);
  62
  63 /**
  64  * Write I/O port (2-byte)
  65  *
  66  * \param port  port to write
  67  * \param val   value to write
  68  */
  69 void ddekit_outw(ddekit_addr_t port, unsigned short val);
  70
  71 /**
  72  * Write I/O port (4-byte)
  73  *
  74  * \param port  port to write
  75  * \param val   value to write
  76  */
  77 void ddekit_outl(ddekit_addr_t port, unsigned long val);
  78
  79
  80 #endif