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Diffstat (limited to 'util/flashrom/82802ab.c')
-rw-r--r--util/flashrom/82802ab.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/util/flashrom/82802ab.c b/util/flashrom/82802ab.c
index 53930eec65..dc6ffbe1b8 100644
--- a/util/flashrom/82802ab.c
+++ b/util/flashrom/82802ab.c
@@ -30,6 +30,46 @@
#include "82802ab.h"
#include "debug.h"
+void toggle_ready_82802ab(volatile uint8_t *dst)
+{
+ unsigned int i = 0;
+ uint8_t tmp1, tmp2;
+
+ tmp1 = *dst & 0x40;
+
+ while (i++ < 0xFFFFFF) {
+ tmp2 = *dst & 0x40;
+ if (tmp1 == tmp2) {
+ break;
+ }
+ tmp1 = tmp2;
+ }
+}
+
+void data_polling_82802ab(volatile uint8_t *dst, uint8_t data)
+{
+ unsigned int i = 0;
+ uint8_t tmp;
+
+ data &= 0x80;
+
+ while (i++ < 0xFFFFFF) {
+ tmp = *dst & 0x80;
+ if (tmp == data) {
+ break;
+ }
+ }
+}
+
+void protect_82802ab(volatile uint8_t *bios)
+{
+ *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ *(volatile uint8_t *)(bios + 0x5555) = 0xA0;
+
+ usleep(200);
+}
+
// I need that Berkeley bit-map printer
void print_82802ab_status(uint8_t status)
{