From 132fd4f9c0184be033533953cc2c7ae92da311d9 Mon Sep 17 00:00:00 2001
From: jaseg <git@jaseg.net>
Date: Thu, 20 Dec 2018 22:42:17 +0900
Subject: 8b10b encoder and decoder working

Tested on all 24-bit inputs after sync and on ~500M of random input
with and without intermediate sync
---
 fw/8b10b.h | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

(limited to 'fw/8b10b.h')

diff --git a/fw/8b10b.h b/fw/8b10b.h
index 84763b1..090faaf 100644
--- a/fw/8b10b.h
+++ b/fw/8b10b.h
@@ -3,6 +3,7 @@
 
 #include <stdint.h>
 #include <stdbool.h>
+#include <errno.h>
 
 enum k_code {
     K28_0=1, K28_1, K28_2, K28_3,
@@ -17,22 +18,24 @@ enum decoder_return_codes {
     DECODING_IN_PROGRESS
 };
 
-struct entry_3b4b {
-    uint8_t rd_neg, rd_pos;
+struct entry {
+    uint8_t rd_neg, rd_pos, disp;
 };
 
-struct entry_5b6b {
-    uint8_t rd_neg, rd_pos;
-};
-
-struct state_8b10b {
+struct state_8b10b_dec {
     uint32_t rx; 
     int bit_ctr;
 };
 
+struct state_8b10b_enc {
+    int rd;
+};
+
+void xfr_8b10b_reset(struct state_8b10b_dec *st);
+int xfr_8b10b_feed_bit(struct state_8b10b_dec *st, int bit);
+bool xfr_8b10b_has_sync(struct state_8b10b_dec *st);
 
-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);
+void xfr_8b10b_encode_reset(struct state_8b10b_enc *st);
+int xfr_8b10b_encode(struct state_8b10b_enc *st, int data);
 
 #endif
-- 
cgit