From: Keith Packard <keithp@keithp.com>
Date: Mon, 15 Oct 2012 07:24:57 +0000 (-0700)
Subject: altos/telelco: Make the RSSI led turn red when no packet is received
X-Git-Tag: 1.1.9.1~13
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=60880bda2153ba3122c7102cd2bacbcca73b9e0d

altos/telelco: Make the RSSI led turn red when no packet is received

This involved splitting out the notion of ever having received an
answer and having received an answer from the last query.

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/src/telelco-v0.1/ao_lco.c b/src/telelco-v0.1/ao_lco.c
index df7f865b..79f3896b 100644
--- a/src/telelco-v0.1/ao_lco.c
+++ b/src/telelco-v0.1/ao_lco.c
@@ -43,6 +43,7 @@ static uint8_t	ao_lco_box;
 static uint8_t	ao_lco_armed;
 static uint8_t	ao_lco_firing;
 static uint8_t	ao_lco_valid;
+static uint8_t	ao_lco_got_channels;
 static uint16_t	ao_lco_tick_offset;
 
 static struct ao_pad_query	ao_pad_query;
@@ -77,7 +78,7 @@ ao_lco_box_present(uint8_t box)
 static uint8_t
 ao_lco_pad_present(uint8_t pad)
 {
-	if (!ao_lco_valid || !ao_pad_query.channels)
+	if (!ao_lco_got_channels || !ao_pad_query.channels)
 		return pad == 0;
 	if (pad >= AO_PAD_MAX_CHANNELS)
 		return 0;
@@ -151,7 +152,7 @@ ao_lco_input(void)
 					ao_quadrature_count[AO_QUADRATURE_PAD] = new_box;
 					if (ao_lco_box != new_box) {
 						ao_lco_box = new_box;
-						ao_lco_valid = 0;
+						ao_lco_got_channels = 0;
 						ao_lco_set_box();
 					}
 				}
@@ -213,13 +214,15 @@ ao_lco_update(void)
 
 	r = ao_lco_query(ao_lco_box, &ao_pad_query, &ao_lco_tick_offset);
 	if (r == AO_RADIO_CMAC_OK) {
-		c = ao_lco_valid;
+		c = ao_lco_got_channels;
+		ao_lco_got_channels = 1;
 		ao_lco_valid = 1;
 		if (!c) {
 			ao_lco_pad = ao_lco_pad_first();
 			ao_lco_set_pad();
 		}
-	}
+	} else
+		ao_lco_valid = 0;
 
 #if 0
 	PRINTD("lco_query success arm_status %d i0 %d i1 %d i2 %d i3 %d\n",
@@ -266,6 +269,7 @@ ao_lco_search(void)
 	else
 		ao_lco_min_box = ao_lco_max_box = ao_lco_box = 0;
 	ao_lco_valid = 0;
+	ao_lco_got_channels = 0;
 	ao_lco_pad = 0;
 }