Move CMOS handling into separate files in accessors

[coreboot.git] / util / nvramtool / cmos_lowlevel.c

diff --git a/util/nvramtool/cmos_lowlevel.c b/util/nvramtool/cmos_lowlevel.c
index 8e19f515aa70743dadd57c0cd48111f30cd6abcd..58494f9c5849bdf1f45024bb555f3c6be6b37714 100644 (file)
--- a/util/nvramtool/cmos_lowlevel.c
+++ b/util/nvramtool/cmos_lowlevel.c
@@ -38,98 +38,9 @@
 
 /* Hardware Abstraction Layer: lowlevel byte-wise write access */
 
-typedef struct {
-       void (*init)(void* data);
-       unsigned char (*read)(unsigned addr);
-       void (*write)(unsigned addr, unsigned char value);
-       void (*set_iopl)(int level);
-} cmos_access_t;
-
-static void cmos_hal_init(void* data);
-static unsigned char cmos_hal_read(unsigned addr);
-static void cmos_hal_write(unsigned addr, unsigned char value);
-static void cmos_set_iopl(int level);
-
-static cmos_access_t cmos_hal = {
-       .init = cmos_hal_init,
-       .read = cmos_hal_read,
-       .write = cmos_hal_write,
-       .set_iopl = cmos_set_iopl,
-};
-
-static void mem_hal_init(void* data);
-static unsigned char mem_hal_read(unsigned addr);
-static void mem_hal_write(unsigned addr, unsigned char value);
-static void mem_set_iopl(int level);
-
-static cmos_access_t memory_hal = {
-       .init = mem_hal_init,
-       .read = mem_hal_read,
-       .write = mem_hal_write,
-       .set_iopl = mem_set_iopl,
-};
-
+extern cmos_access_t cmos_hal, memory_hal;
 static cmos_access_t *current_access = &cmos_hal;
 
-/* no need to initialize anything */
-static void cmos_hal_init(__attribute__((unused)) void *data)
-{
-}
-
-static unsigned char cmos_hal_read(unsigned index)
-{
-       unsigned short port_0, port_1;
-
-       assert(!verify_cmos_byte_index(index));
-
-       if (index < 128) {
-               port_0 = 0x70;
-               port_1 = 0x71;
-       } else {
-               port_0 = 0x72;
-               port_1 = 0x73;
-       }
-
-       OUTB(index, port_0);
-       return INB(port_1);
-}
-
-static void cmos_hal_write(unsigned index, unsigned char value)
-{
-       unsigned short port_0, port_1;
-
-       assert(!verify_cmos_byte_index(index));
-
-       if (index < 128) {
-               port_0 = 0x70;
-               port_1 = 0x71;
-       } else {
-               port_0 = 0x72;
-               port_1 = 0x73;
-       }
-
-       OUTB(index, port_0);
-       OUTB(value, port_1);
-}
-
-static unsigned char* mem_hal_data = (unsigned char*)-1;
-static void mem_hal_init(void *data)
-{
-       mem_hal_data = data;
-}
-
-static unsigned char mem_hal_read(unsigned index)
-{
-       assert(mem_hal_data != (unsigned char*)-1);
-       return mem_hal_data[index];
-}
-
-static void mem_hal_write(unsigned index, unsigned char value)
-{
-       assert(mem_hal_data != (unsigned char*)-1);
-       mem_hal_data[index] = value;
-}
-
 void select_hal(hal_t hal, void *data)
 {
        switch(hal) {
@@ -353,42 +264,6 @@ void set_iopl(int level)
        current_access->set_iopl(level);
 }
 
-static void cmos_set_iopl(int level)
-{
-#if defined(__FreeBSD__)
-       static int io_fd = -1;
-#endif
-
-       assert((level >= 0) && (level <= 3));
-
-#if defined(__FreeBSD__)
-       if (level == 0) {
-               if (io_fd != -1) {
-                       close(io_fd);
-                       io_fd = -1;
-               }
-       } else {
-               if (io_fd == -1) {
-                       io_fd = open("/dev/io", O_RDWR);
-                       if (io_fd < 0) {
-                               perror("/dev/io");
-                               exit(1);
-                       }
-               }
-       }
-#else
-       if (iopl(level)) {
-               fprintf(stderr, "%s: iopl() system call failed.  "
-                       "You must be root to do this.\n", prog_name);
-               exit(1);
-       }
-#endif
-}
-
-static void mem_set_iopl(__attribute__ ((unused)) int level)
-{
-}
-
 /****************************************************************************
  * verify_cmos_op
  *