From b55240eb43a92c552003b8b324a385e041f84f12 Mon Sep 17 00:00:00 2001
From: root <root@new-selene.erebei.org>
Date: Tue, 1 Dec 2015 02:10:53 +0000
Subject: fish

---
 app/keypad.c | 155 -----------------------------------------------------------
 1 file changed, 155 deletions(-)
 delete mode 100644 app/keypad.c

(limited to 'app/keypad.c')

diff --git a/app/keypad.c b/app/keypad.c
deleted file mode 100644
index d4a82db..0000000
--- a/app/keypad.c
+++ /dev/null
@@ -1,155 +0,0 @@
-#include "project.h"
-
-#define GPIO_CLOCK GPIOA
-#define GPIO_DATA GPIOB
-#define CLOCK 	GPIO5
-#define DATA	GPIO11
-
-#define KEYPAD_DELAY do { delay_us(1); } while (0)
-
-
-#define SCAN_INTERVAL 73
-#define DEBOUNCE_INTERVAL 1
-#define DEBOUNCE_COUNT 3
-
-static uint32_t next_scan;
-
-
-uint16_t
-keypad_raw_read (void)
-{
-  uint16_t ret = 0;
-  uint16_t c;
-
-/*Reset the state machine in the keypad */
-
-  gpio_set (GPIO_DATA, DATA);
-  KEYPAD_DELAY;
-  gpio_clear (GPIO_DATA, DATA);
-  KEYPAD_DELAY;
-  gpio_set (GPIO_DATA, DATA);
-  KEYPAD_DELAY;
-
-  gpio_clear (GPIO_CLOCK, CLOCK);
-  KEYPAD_DELAY;
-
-  for (c = 0x8000; c; c >>= 1)
-    {
-      gpio_set (GPIO_CLOCK, CLOCK);
-      KEYPAD_DELAY;
-      if (!(gpio_get (GPIO_DATA, DATA) & DATA))
-        ret |= c;
-      gpio_clear (GPIO_CLOCK, CLOCK);
-      KEYPAD_DELAY;
-    }
-
-  gpio_set (GPIO_CLOCK, CLOCK);
-
-  return ret;
-}
-
-uint16_t
-keypad_read (void)
-{
-  int c;
-  const uint8_t lut[] = "cdef89ab45670123";
-  uint8_t ret = 0;
-
-
-
-/*Reset the state machine in the keypad */
-
-  gpio_set (GPIO_DATA, DATA);
-  KEYPAD_DELAY;
-  gpio_clear (GPIO_DATA, DATA);
-  KEYPAD_DELAY;
-  gpio_set (GPIO_DATA, DATA);
-  KEYPAD_DELAY;
-
-  gpio_clear (GPIO_CLOCK, CLOCK);
-  KEYPAD_DELAY;
-
-  for (c = 0; c < 16; ++c)
-    {
-      gpio_set (GPIO_CLOCK, CLOCK);
-      KEYPAD_DELAY;
-      if (!(gpio_get (GPIO_DATA, DATA) & DATA))
-        ret = lut[c];
-      gpio_clear (GPIO_CLOCK, CLOCK);
-      KEYPAD_DELAY;
-    }
-
-  gpio_set (GPIO_CLOCK, CLOCK);
-
-  return ret;
-}
-
-
-static void
-keypad_scan (void)
-{
-  static uint8_t last_v;
-  static uint8_t key_down;
-  static int same;
-  uint8_t v;
-
-  v = keypad_read ();
-
-  next_scan = DEBOUNCE_INTERVAL;
-
-  if (v!=last_v) {
-     last_v=v;
-     same=0;
-     return;
-  } else {
-     if (same<DEBOUNCE_COUNT) {
-     	same++;
-	return;
-     }
-  }
-
-  if (!v && !key_down)  {	
-      next_scan = SCAN_INTERVAL;
-      return;
-  }
-
-	if (key_down==v) {
-		return;
-	} else if (key_down!=v) {
-	  if (key_down)
-          key_event (key_down, 0);
-	key_down=v;
-	  if (key_down)
-          key_event (key_down, 1);
-	}
-}
-
-
-
-
-void
-keypad_tick (void)
-{
-
-  if (!next_scan)
-    keypad_scan ();
-  else
-    next_scan--;
-
-}
-
-
-
-
-void
-keypad_init (void)
-{
-
-  gpio_set_mode (GPIO_CLOCK, GPIO_MODE_OUTPUT_50_MHZ,
-                 GPIO_CNF_OUTPUT_OPENDRAIN, CLOCK);
-  gpio_set_mode (GPIO_DATA, GPIO_MODE_OUTPUT_50_MHZ,
-                 GPIO_CNF_OUTPUT_OPENDRAIN, DATA);
-
-
-
-}
-- 
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