From ed608010c0a708b9be0d3577d7f4d3313eb2e851 Mon Sep 17 00:00:00 2001
From: "Jan \"Yenya\" Kasprzak" <kas@fi.muni.cz>
Date: Wed, 21 Nov 2012 15:32:21 +0100
Subject: [PATCH] firmware/buttons.c: preliminary user params setup

---
 firmware/buttons.c | 94 +++++++++++++++++++++++++++++++++++++++-------
 firmware/lights.h  |  2 +
 2 files changed, 82 insertions(+), 14 deletions(-)

diff --git a/firmware/buttons.c b/firmware/buttons.c
index d0cbd51..17f4bff 100644
--- a/firmware/buttons.c
+++ b/firmware/buttons.c
@@ -9,6 +9,86 @@ static uint16_t button_start[N_BUTTONS];
 static unsigned char button_pressed[N_BUTTONS];
 static unsigned char just_waked_up;
 
+static unsigned char user_params[MAX_USER_PARAMS] = { 0, 0, 0 };
+static unsigned char user_params_max[MAX_USER_PARAMS] = { 3, 2, 2 };
+
+static unsigned char user_params_state = 0;
+	/*
+	 * Here 0 means "no setup currently in progress",
+	 * 1 .. MAX_USER_PARAMS means "now short presses increase or decrease
+	 *           the value of user_params[user_params_state-1]"
+	 */
+
+static uint16_t user_params_starttime;
+
+static void do_sleep();
+
+static void toggle_bright_mode()
+{
+	// TODO
+}
+
+static void set_panic_mode()
+{
+	// TODO
+}
+
+unsigned char get_user_param(unsigned char param)
+{
+	if (param < MAX_USER_PARAMS)
+		return user_params[param];
+	return 0; // FIXME: internal error?
+}
+
+static inline void short_press(unsigned char button)
+{
+	unsigned char param;
+
+	if (user_params_state == 0) {
+		if (button == 0)
+			toggle_bright_mode();
+		else
+			set_panic_mode();
+		return;
+	}
+
+	param = user_params_state-1;
+
+	if (button == 0) {
+		if (user_params[param])
+			user_params[param]--;
+		else
+			user_params[param] = user_params_max[param];
+	} else {
+		user_params[param]++;
+
+		if (user_params[param] >= user_params_max[param])
+			user_params[param] = 0;
+	}
+	// FIXME: notify somebody about user_params change?
+
+	// set_status_led(2, user_params[param]);
+
+	user_params_starttime = jiffies;
+}
+
+static inline void long_press(unsigned char button)
+{
+	if (button == 0) {
+		do_sleep();
+		return;
+	}
+
+	// button 1 - cycle through states
+	user_params_state++;
+
+	if (user_params_state >= MAX_USER_PARAMS)
+		user_params_state = 1;
+
+	// set_status_led(1, state);
+	user_params_starttime = jiffies;
+}
+
 void init_buttons()
 {
 	unsigned char i;
@@ -22,8 +102,6 @@ void init_buttons()
 	}
 
 	just_waked_up = 1;
-
-	// log_byte(PORTA);
 }
 
 static void do_sleep()
@@ -44,18 +122,6 @@ static void do_sleep()
 	power_down();
 }
 
-static void inline long_press(unsigned char n)
-{
-	if (n == 0)
-		do_sleep();
-}
-
-static void inline short_press(unsigned char n)
-{
-	if (n == 0)
-		gpio_set(2,1);
-}
-
 void timer_check_buttons()
 {
 	unsigned char pin = PINA;
diff --git a/firmware/lights.h b/firmware/lights.h
index 43915bd..bb4bca7 100644
--- a/firmware/lights.h
+++ b/firmware/lights.h
@@ -74,8 +74,10 @@ void led_set_status(unsigned char status);
 void led_set_pattern(unsigned char led, pattern_t *pattern);
 
 /* buttons.c */
+#define MAX_USER_PARAMS 3
 void init_buttons();
 void timer_check_buttons();
+unsigned char get_user_param(unsigned char param);
 
 /* battery.c */
 extern volatile unsigned char battery_100mv;
-- 
2.39.3