From 4ec7bc619f3b4af419ba4b2cc6115852ad854c30 Mon Sep 17 00:00:00 2001
From: David Lamparter <equinox@diac24.net>
Date: Fri, 9 Jan 2015 05:14:50 +0100
Subject: dali: foobar

---
 dali2.c    | 21 +++++++++++++++++++--
 dali_ctl.c | 36 ++++++++++++++++++++++++++++--------
 2 files changed, 47 insertions(+), 10 deletions(-)

diff --git a/dali2.c b/dali2.c
index ee00c1b..57bd72f 100644
--- a/dali2.c
+++ b/dali2.c
@@ -64,6 +64,8 @@ ISR(TIMER0_COMPA_vect)
 	subsamp++;
 	subsamp &= 7;
 
+	while (TCNT0 < 52)
+		asm volatile ("nop\n" ::: "memory");
 	/* CTC mode didn't work, CBA to debug */
 	TCNT0 = 0;
 
@@ -198,6 +200,18 @@ ISR(TIMER0_COMPA_vect)
 		}
 	}
 
+#ifdef DALI_USER_IDLE
+	if (dali_state == DALI_IDLE && !dali_tx_rq) {
+		uint16_t next = dali_user_idle();
+		if (next != DALI_INVALID) {
+			tx_data = next;
+			bitpos = 0;
+			dali_state = DALI_TX_SBIT0;
+			subsamp = 7;
+		}
+	}
+#endif
+
 	if (dali_state == DALI_IDLE && dali_tx_rq) {
 		tx_data = dali_tx;
 		bitpos = 0;
@@ -221,7 +235,10 @@ static void dali_send(uint16_t word)
 
 	dali_rx_avail = 0;
 	dali_tx = word;
-	asm volatile ("" ::: "memory");
+
+	do	asm volatile ("" ::: "memory");
+	while (dali_tx_rq);
+
 	dali_tx_rq = 1;
 	while (dali_tx_rq || dali_state != DALI_IDLE) {
 		asm volatile ("" ::: "memory");
@@ -273,7 +290,7 @@ static void dali_init(void)
 
 	TIFR0  = (1 << OCF0A);
 	TCNT0 = 0;
-	OCR0A = 52;				// 8 MHz / 8 / 52 = 19230.
+	OCR0A = 49; /*52*/			// 8 MHz / 8 / 52 = 19230.
 	asm volatile ("" ::: "memory");
 	TIMSK0 = (1 << OCIE0A);
 	TCCR0A = 0;
diff --git a/dali_ctl.c b/dali_ctl.c
index 5db3c09..4d8f872 100644
--- a/dali_ctl.c
+++ b/dali_ctl.c
@@ -1,3 +1,5 @@
+#define DALI_C_QBALLAST		0x0191
+
 #define DALI_C_TERMINATE	0xa100
 #define DALI_C_DTR		0xa300
 #define DALI_C_INITIALISE	0xa500
@@ -16,9 +18,6 @@
 static uint8_t dali_s_byte, dali_sh, dali_sm, dali_sl;
 static bool dali_s_notfound;
 
-/* [0] bit 0 => addr 0, [0] bit 1 => addr 1, etc. */
-static uint8_t dali_map[8];
-
 EEMEM uint8_t dali_nextaddr = 0x02;
 static uint8_t dali_assign;
 
@@ -52,6 +51,7 @@ static void dali_search_byte(uint16_t cmd)
 		bit >>= 1;
 	}
 	dali_twice(cmd | dali_s_byte);
+	uart_puthex(dali_s_byte);
 }
 
 static void dali_search_single(void)
@@ -81,6 +81,8 @@ static void dali_search_single(void)
 
 static void dali_search(void)
 {
+	uint8_t errtries = 0;
+
 	dali_twice(DALI_C_INITIALISE);
 
 	/* _some_ EVGs keep the long address in nonvolatile memory,
@@ -92,7 +94,12 @@ static void dali_search(void)
 	dali_assign = eeprom_read_byte(&dali_nextaddr);
 
 	do {
+		uint8_t ph = dali_sh, pm = dali_sm, pl = dali_sl;
+
+		uart_puttick();
+		uart_puts("dali search... ");
 		dali_search_single();
+		uart_puts("\n");
 		if (!dali_s_notfound) {
 			wdt_reset();
 
@@ -102,8 +109,12 @@ static void dali_search(void)
 			uart_puthex(dali_sm);
 			uart_puthex(dali_sl);
 			dali_send(DALI_C_QURYSHORT);
+			if (!dali_rx_avail)
+				dali_send(DALI_C_QURYSHORT);
+			wdt_reset();
 			if (dali_rx_avail) {
 				uint8_t addr = 0xff;
+				errtries = 0;
 
 				if ((dali_rx & 0x81) == 0x01) {
 					addr = dali_rx >> 1;
@@ -112,7 +123,7 @@ static void dali_search(void)
 					uart_puthex(addr);
 				}
 
-				if (addr == 0x00 || (dali_map[addr >> 3] & (1 << (addr & 0x07)))) {
+				if (addr == 0x00 || target_present(addr)) {
 					uart_puts(" reprog");
 					addr = 0xff;
 				}
@@ -132,12 +143,21 @@ static void dali_search(void)
 				uart_puts("\n");
 
 				if (addr < 64)
-					dali_map[addr >> 3] |= 1 << (addr & 0x7);
-			} else
+					target_set_present(addr);
+
+				wdt_reset();
+				dali_send(DALI_C_WITHDRAW);
+			} else {
 				uart_puts(" error\n");
+				if (errtries < 3) {
+					dali_sh = ph;
+					dali_sm = pm;
+					dali_sl = pl;
+					errtries++;
+				} else
+					errtries = 0;
+			}
 
-			wdt_reset();
-			dali_send(DALI_C_WITHDRAW);
 		}
 	} while (!dali_s_notfound);
 
-- 
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