util/nvramtool/accessors/cmos-mem.c

   1 #include <assert.h>
   2 #include "cmos_lowlevel.h"
   3
   4 static void mem_hal_init(void* data);
   5 static unsigned char mem_hal_read(unsigned addr);
   6 static void mem_hal_write(unsigned addr, unsigned char value);
   7 static void mem_set_iopl(int level);
   8
   9 static unsigned char* mem_hal_data = (unsigned char*)-1;
  10 static void mem_hal_init(void *data)
  11 {
  12         mem_hal_data = data;
  13 }
  14
  15 static unsigned char mem_hal_read(unsigned index)
  16 {
  17         assert(mem_hal_data != (unsigned char*)-1);
  18         return mem_hal_data[index];
  19 }
  20
  21 static void mem_hal_write(unsigned index, unsigned char value)
  22 {
  23         assert(mem_hal_data != (unsigned char*)-1);
  24         mem_hal_data[index] = value;
  25 }
  26
  27 static void mem_set_iopl(__attribute__ ((unused)) int level)
  28 {
  29 }
  30
  31 cmos_access_t memory_hal = {
  32         .init = mem_hal_init,
  33         .read = mem_hal_read,
  34         .write = mem_hal_write,
  35         .set_iopl = mem_set_iopl,
  36 };
  37