HACK: add gpio-toggling on arrival of tx-completion interrupt

Change-Id: I57e76f61f629c367fbbdf0227b27f1199270465d

sysmoOCTSIM/cuart_driver_asf4_usart_async.c

@@ -44,6 +44,14 @@ static void _SIM_tx_cb(const struct usart_async_descriptor *const io_descr, uint
 {
 	struct card_uart *cuart = cuart4slot_nr(slot_nr);
 	OSMO_ASSERT(cuart);
+	if (slot_nr == 6) {
+		hri_sercomusart_clear_INTFLAG_TXC_bit(SERCOM6);
+#if 0
+		gpio_set_pin_level(PIN_PB13, true);
+		delay_us(1);
+		gpio_set_pin_level(PIN_PB13, false);
+#endif
+	}
 	card_uart_notification(cuart, CUART_E_TX_COMPLETE, io_descr->tx_buffer);
 }
 
@@ -161,7 +169,7 @@ static const uint8_t SIM_peripheral_GCLK_ID[] = {SERCOM0_GCLK_ID_CORE, SERCOM1_G
  *  @param[in] baudrate baud rate in bps to set
  *  @return if the baud rate has been set, else a parameter is out of range
  */
-static bool slot_set_baudrate(uint8_t slotnr, uint32_t baudrate)
+bool slot_set_baudrate(uint8_t slotnr, uint32_t baudrate)
 {
 	ASSERT(slotnr < ARRAY_SIZE(SIM_peripheral_descriptors));
 

sysmoOCTSIM/hpl/sercom/hpl_sercom.c

@@ -45,6 +45,8 @@
 #include <utils.h>
 #include <utils_assert.h>
 
+#include <hal_gpio.h>
+
 #ifndef CONF_SERCOM_0_USART_ENABLE
 #define CONF_SERCOM_0_USART_ENABLE 0
 #endif
@@ -2617,6 +2619,9 @@ void SERCOM6_0_Handler(void)
  */
 void SERCOM6_1_Handler(void)
 {
+               gpio_set_pin_level(PIN_PB13, true);
+               delay_us(1);
+               gpio_set_pin_level(PIN_PB13, false);
 	_sercom_usart_interrupt_handler(_sercom6_dev);
 }
 /**

sysmoOCTSIM/main.c

@@ -1124,8 +1124,23 @@ static const struct ccid_ops c_ops = {
 
 //#######################
 
+static void dbgio_init()
+{
+	/* CAN_TX */
+	gpio_set_pin_function(PIN_PB12, GPIO_PIN_FUNCTION_OFF);
+	gpio_set_pin_direction(PIN_PB12, GPIO_DIRECTION_OUT);
+	gpio_set_pin_level(PIN_PB12, false);
+
+	/* CAN_RX */
+	gpio_set_pin_function(PIN_PB13, GPIO_PIN_FUNCTION_OFF);
+	gpio_set_pin_direction(PIN_PB13, GPIO_DIRECTION_OUT);
+	gpio_set_pin_level(PIN_PB13, false);
+}
+
 #define NUM_OUT_BUF 7
 
+extern bool slot_set_baudrate(uint8_t slotnr, uint32_t baudrate);
+
 int main(void)
 {
 	char sernr_buf[16*2+1];
@@ -1187,8 +1202,41 @@ int main(void)
 	submit_next_out();
 	CRITICAL_SECTION_LEAVE()
 
+	dbgio_init();
+
+#if 1
+	struct ncn8025_settings settings;
+	settings.rstin = false;
+	settings.cmdvcc = true;
+	settings.led = true;
+	settings.clkdiv = SIM_CLKDIV_1;
+	settings.vsel = SIM_VOLT_3V0;
+	ncn8025_set(6, &settings);
+	slot_set_baudrate(6, 6720);
+	//slot_set_isorate(6, settings.clkdiv, ISO7816_3_DEFAULT_FD, ISO7816_3_DEFAULT_DD);
+	//slot_set_baudrate(6, 300000);
+	hri_sercomusart_write_CTRLB_TXEN_bit(SERCOM6, true);
+	hri_sercomusart_write_CTRLB_RXEN_bit(SERCOM6, false);
+	hri_sercomusart_set_INTEN_TXC_bit(SERCOM6);
+
+	for (uint32_t i = 0; i < 4; i++) {
+		uint32_t irq = 70+i;
+		NVIC_DisableIRQ((IRQn_Type)irq);
+		NVIC_ClearPendingIRQ((IRQn_Type)irq);
+		NVIC_EnableIRQ((IRQn_Type)irq);
+	}
+
+	while (true) {
+		delay_us(100000);
+		while (!hri_sercomusart_get_interrupt_DRE_bit(SERCOM6)) {}
+		hri_sercomusart_set_INTEN_TXC_bit(SERCOM6);
+		hri_sercomusart_write_DATA_reg(SERCOM6, 0x55);
+	}
+
+#else
 //	command_print_prompt();
 	while (true) { // main loop
+
 		command_try_recv();
 		poll_card_detect();
 		submit_next_irq();
@@ -1213,4 +1261,5 @@ int main(void)
 			}
 
 	}
+#endif
 }