drivers/net/irda/w83977af.h

   1 #ifndef W83977AF_H
   2 #define W83977AF_H
   3
   4 #define W977_EFIO_BASE 0x370
   5 #define W977_EFIO2_BASE 0x3f0
   6 #define W977_DEVICE_IR 0x06
   7
   8
   9 /*
  10  * Enter extended function mode
  11  */
  12 static inline void w977_efm_enter(unsigned int efio)
  13 {
  14         outb(0x87, efio);
  15         outb(0x87, efio);
  16 }
  17
  18 /*
  19  * Select a device to configure
  20  */
  21
  22 static inline void w977_select_device(__u8 devnum, unsigned int efio)
  23 {
  24         outb(0x07, efio);
  25         outb(devnum, efio+1);
  26 }
  27
  28 /*
  29  * Write a byte to a register
  30  */
  31 static inline void w977_write_reg(__u8 reg, __u8 value, unsigned int efio)
  32 {
  33         outb(reg, efio);
  34         outb(value, efio+1);
  35 }
  36
  37 /*
  38  * read a byte from a register
  39  */
  40 static inline __u8 w977_read_reg(__u8 reg, unsigned int efio)
  41 {
  42         outb(reg, efio);
  43         return inb(efio+1);
  44 }
  45
  46 /*
  47  * Exit extended function mode
  48  */
  49 static inline void w977_efm_exit(unsigned int efio)
  50 {
  51         outb(0xAA, efio);
  52 }
  53 #endif