stm-firmware/digio.c

@@ -52,17 +52,10 @@ static void digio_setup_pin_int(uint8_t bit_no, uint8_t in_out, uint8_t alt_func
 
 }
 
-void digio_setup_default_all(void)
+void digio_init(void)
 {
-	unsigned int i;
-
 	rcc_manager_enable_clock(&RCC->AHB1ENR, BITMASK_TO_BITNO(DIGIO_RCC_MASK));
-
-	for (i = 0; i < COUNT_OF(digio_pins); i++) {
-		digio_setup_pin_int(digio_pins[i], digio_default_io[i], digio_default_altfunc[i]);
-		if (digio_default_io[i] == 1)
-			digio_set(i, 0);
-	}
+	digio_set_default_values();
 }
 
 void digio_setup_pin(uint8_t num, uint8_t in_out, uint8_t alt_func)
@@ -74,12 +67,22 @@ void digio_setup_pin(uint8_t num, uint8_t in_out, uint8_t alt_func)
 
 void digio_set(uint8_t num, int val)
 {
+	uint8_t pin;
+
 	if (num >= COUNT_OF(digio_pins))
 		return;
+
+	pin = digio_pins[num];
+
+	/* Check if port is an output. If not, do noting. */
+	if ((DIGIO_PORT->MODER & (0x3<<pin)) != OUTPUT(pin)) {
+		return;
+	}
+
 	if (val)
-		DIGIO_PORT->ODR |= (1<<digio_pins[num]);
+		DIGIO_PORT->ODR |= (1<<pin);
 	else
-		DIGIO_PORT->ODR &= ~(1<<digio_pins[num]);
+		DIGIO_PORT->ODR &= ~(1<<pin);
 }
 
 int digio_get(uint8_t num)
@@ -219,3 +222,14 @@ void TIM7_IRQHandler(void)
 #endif
 
 /** @} */
+
+void digio_set_default_values()
+{
+	unsigned int i;
+
+	for (i = 0; i < COUNT_OF(digio_pins); i++) {
+		digio_setup_pin_int(digio_pins[i], digio_default_io[i], digio_default_altfunc[i]);
+		if (digio_default_io[i] == 1)
+			digio_set(i, 0);
+	}
+}

stm-firmware/include/reflow-controller/digio.h

@@ -65,11 +65,19 @@
 #define BEEPER_RCC_MASK RCC_AHB1ENR_GPIOBEN
 
 /**
- * @brief Enable all clocks and setup pins in default setting
+ * @brief Enable all clocks and setup pins in default setting.
  * @warning This function uses @ref rcc_manager_enable_clock to enable the clocks. Therefore, it must not be called
  * multiple times.
+ * @note Calls @ref digio_set_default_values() internally.
  */
-void digio_setup_default_all(void);
+void digio_init(void);
+
+/**
+ * @brief Setup or restore the default DIGIO settings.
+ *
+ * This function can be called multiple times.
+ */
+void digio_set_default_values(void);
 
 /**
  * @brief Set up a DIGIO pin.

stm-firmware/include/reflow-controller/temp-profile/temp-profile-parser.h

@@ -41,6 +41,9 @@ enum pl_command_type {
 	PL_LOUDSPEAKER_SET, /**< @brief Set the loudspeaker/beeper */
 	PL_OFF, /**< @brief Disable the temperature output and shutdown the PID controller */
 	PL_CLEAR_FLAGS, /**< @brief Try clear all flags */
+	PL_DIGIO_CONF, /**< @brief Configure a DIGIO pin */
+	PL_DIGIO_SET, /**< @brief Set a DIGIO pin */
+	PL_DIGIO_WAIT, /**< @brief Wait until a DIGIO pin is set to the specified level */
 	_PL_NUM_CMDS, /**< @brief Sentinel to determine the total amount of commands */
 };
 

stm-firmware/main.c

@@ -219,8 +219,8 @@ static inline void setup_system(void)
 	/** - Initialize the oven output driver outputting the wavepacket control signal for the SSR and */
 	oven_driver_init();
 
-	/** - Initialize all DIGIO Pins to theri default state and pin functions */
-	digio_setup_default_all();
+	/** - Initialize all DIGIO Pins to their default state and pin functions */
+	digio_init();
 
 	/** - Set-up the LED outputs */
 	led_setup();

stm-firmware/temp-profile/temp-profile-executer.c

@@ -185,6 +185,36 @@ static void cmd_ack_flags(void)
 
 }
 
+static void cmd_digio_conf(uint8_t digio_num, uint8_t mode)
+{
+	uint8_t pin_mode;
+	uint8_t alt_func = 0;
+
+	if (mode == 0 || mode == 1) {
+		pin_mode = mode;
+	} else if (mode >= 0x80 && mode <= 0x87) {
+		/* Alternate function */
+		pin_mode = 2;
+		alt_func = mode - 0x80;
+	} else {
+		return;
+	}
+
+	digio_setup_pin(digio_num, pin_mode, alt_func);
+}
+
+bool cmd_digio_wait(uint8_t digio_num, uint8_t digio_state)
+{
+	bool advance = false;
+	int res;
+
+	res = digio_get(digio_num);
+	if (res < 0 || (uint8_t)res == digio_state)
+		advance = true;
+
+	return advance;
+}
+
 int temp_profile_executer_handle(void)
 {
 	struct pl_command *current_cmd;
@@ -250,6 +280,17 @@ int temp_profile_executer_handle(void)
 		cmd_ack_flags();
 		advance = true;
 		break;
+	case PL_DIGIO_CONF:
+		advance = true;
+		cmd_digio_conf((uint8_t)current_cmd->params[0], (uint8_t)current_cmd->params[1]);
+		break;
+	case PL_DIGIO_SET:
+		digio_set((uint8_t)current_cmd->params[0], current_cmd->params[1] ? 1u : 0u);
+		advance = true;
+		break;
+	case PL_DIGIO_WAIT:
+		advance = cmd_digio_wait((uint8_t)current_cmd->params[0], current_cmd->params[1] ? 1u : 0u);
+		break;
 	default:
 		tpe_abort();
 		advance = true;
@@ -290,7 +331,9 @@ int temp_profile_executer_stop(void)
 	if (command_list)
 		temp_profile_free_command_list(&command_list);
 
+	/* Reset loudspeaker and reset default state of DIGIO channels */
 	loudspeaker_set(0);
+	digio_set_default_values();
 
 	return 0;
 }

stm-firmware/temp-profile/temp-profile-parser.c

@@ -48,6 +48,9 @@ static const struct pl_command_list_map cmd_list_map[_PL_NUM_CMDS] = {
 	{PL_LOUDSPEAKER_SET, "beep", 1u},
 	{PL_OFF, "temp_off", 0u},
 	{PL_CLEAR_FLAGS, "clear_flags", 0u},
+	{PL_DIGIO_CONF, "digio_conf", 2u},
+	{PL_DIGIO_SET, "digio_set", 2u},
+	{PL_DIGIO_WAIT, "digio_wait", 2u},
 };
 
 /**