Add initial center firmware

1 files changed, 38 insertions, 0 deletions

diff --git a/fw/8b10b.h b/fw/8b10b.h
new file mode 100644
index 0000000..84763b1
--- /dev/null
+++ b/fw/8b10b.h
@@ -0,0 +1,38 @@
+#ifndef __8B10B_H__
+#define __8B10B_H__
+
+#include <stdint.h>
+#include <stdbool.h>
+
+enum k_code {
+    K28_0=1, K28_1, K28_2, K28_3,
+    K28_4, K28_5, K28_6, K28_7,
+    K23_7, K27_7, K29_7, K30_7,
+    K_CODES_LAST
+};
+
+enum decoder_return_codes {
+    _K_CODES_LAST = K_CODES_LAST,
+    DECODING_ERROR,
+    DECODING_IN_PROGRESS
+};
+
+struct entry_3b4b {
+    uint8_t rd_neg, rd_pos;
+};
+
+struct entry_5b6b {
+    uint8_t rd_neg, rd_pos;
+};
+
+struct state_8b10b {
+    uint32_t rx; 
+    int bit_ctr;
+};
+
+
+void xfr_8b10b_reset(struct state_8b10b *st);
+int xfr_8b10b_feed_bit(struct state_8b10b *st, int bit);
+bool xfr_8b10b_has_sync(struct state_8b10b *st);
+
+#endif