From 2565f4857ea9cdebdbba483e35a07d012aa3afce Mon Sep 17 00:00:00 2001
From: root <root@lamia.panaceas.james.local>
Date: Sat, 20 Aug 2016 23:04:40 +0100
Subject: first working version

---
 app/gpio.c | 105 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 97 insertions(+), 8 deletions(-)

(limited to 'app/gpio.c')

diff --git a/app/gpio.c b/app/gpio.c
index 2eb41ce..e597d16 100644
--- a/app/gpio.c
+++ b/app/gpio.c
@@ -1,24 +1,64 @@
 #include "project.h"
+#define DEBOUNCE	10
+#define DIAL_BLACKOUT	90 /*	(10pps)*/
+
+static int hs_poll;
+int hook;
+static int dial_poll;
+static int dial_pulse_blackout;
+static int pulse_count;
+
 
-static int hs_poll=50,hook=-1;
 
 static int fake_hook;
 
+static void exti5_isr(void) 
+{
+exti_reset_request(EXTI5);
+dial_poll=DEBOUNCE;
+}
+
+static void exti7_isr(void) 
+{
+exti_reset_request(EXTI7);
+if (dial_pulse_blackout)  return;
+dial_pulse_blackout=DIAL_BLACKOUT;
+pulse_count++;
+}
+
+
+static void exti14_isr(void) 
+{
+exti_reset_request(EXTI14);
+hs_poll=DEBOUNCE;
+}
+
+
+
+void exti9_5_isr(void)
+{
+if (exti_get_flag_status(EXTI5)) exti5_isr();
+if (exti_get_flag_status(EXTI7)) exti7_isr();
+}
 void exti15_10_isr(void)
 {
-	exti_reset_request(EXTI14);
-hs_poll=50;
+if (exti_get_flag_status(EXTI14)) exti14_isr();
 }
 
+
+
 static void hs_tick(void)
 {
 int h;
+
+
 if (!hs_poll) return;
 hs_poll--;
 
+
 if (hs_poll) return;
 
-h=!!gpio_get(GPIOC,GPIO14);
+h=!gpio_get(GPIOC,GPIO14);
 
 h^=fake_hook;
 
@@ -28,10 +68,11 @@ hook=h;
 
 printf("Hook is now %d\r\n",hook);
 
-if ((!hook) && (ringing)) {
+if (!hook) {
+	if (ringing) {
 	ring_off();
 	answer_call();
-
+	}
 }
 
 if (hook) {
@@ -39,22 +80,41 @@ if (hook) {
 	terminate_call();
 }
 
-	
 
 
+}
+static void dial_tick(void) {
+int m;
+
+if (dial_pulse_blackout) dial_pulse_blackout--;
+if (!dial_poll) return;
+dial_poll--;
+if (dial_poll) return;
+
+m=!!gpio_get(GPIOA,GPIO5);
+
+
+if (m) return;
+if (!pulse_count) return;
+
+dialstr_digit((pulse_count == 10) ? 0:pulse_count);
+pulse_count=0;
 
 }
 
 
+
 void toggle_fake_hook(void)
 {
 fake_hook^=1;
-hs_poll=50;
+hs_poll=DEBOUNCE;
 }
 
 void gpio_tick(void)
 {
 hs_tick();
+dial_tick();
+
 }
 
 
@@ -69,6 +129,35 @@ void gpio_init(void)
   gpio_set(GPIOA,GPIO1);
 
 
+  /* Dial mute */
+  gpio_set_mode (GPIOA, GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO4);
+  gpio_set(GPIOA,GPIO4);
+
+  gpio_set_mode (GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, GPIO5);
+  gpio_clear(GPIOA,GPIO5);
+
+
+  exti_select_source(EXTI5, GPIOA);
+  exti_set_trigger(EXTI5, EXTI_TRIGGER_BOTH);
+  exti_enable_request(EXTI5);
+
+  /*Dial contacts */
+
+  gpio_set_mode (GPIOA, GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO6);
+  gpio_set(GPIOA,GPIO6);
+
+  gpio_set_mode (GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, GPIO7);
+  gpio_clear(GPIOA,GPIO7);
+
+
+  exti_select_source(EXTI7, GPIOA);
+  exti_set_trigger(EXTI7, EXTI_TRIGGER_RISING);
+  exti_enable_request(EXTI7);
+
+
+  nvic_enable_irq(NVIC_EXTI9_5_IRQ);
+
+
   /*hookswitch*/
   gpio_set_mode (GPIOC, GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO15);
   gpio_set(GPIOC,GPIO15);
-- 
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