Change in osmo-ccid-firmware[master]: echo back UART input

[Kévin Redon]

Kévin Redon has uploaded this change for review. ( https://gerrit.osmocom.org/12807


Change subject: echo back UART input
......................................................................

echo back UART input

let main run the main loop instead of the CDC ACM example.
also rename the CDC ACM example functions.

Change-Id: I44b15079672b4058de1fa08365541317d54958dc
---
M sysmoOCTSIM/main.c
M sysmoOCTSIM/usb_start.c
M sysmoOCTSIM/usb_start.h
3 files changed, 17 insertions(+), 17 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-ccid-firmware refs/changes/07/12807/1

diff --git a/sysmoOCTSIM/main.c b/sysmoOCTSIM/main.c
index de954f4..dfe3b03 100644
--- a/sysmoOCTSIM/main.c
+++ b/sysmoOCTSIM/main.c
@@ -19,19 +19,19 @@
 #include "atmel_start.h"
 #include "atmel_start_pins.h"
 
-volatile static uint32_t data_arrived = 0;
+volatile static bool data_arrived = false;
 
 static void tx_cb_UART_debug(const struct usart_async_descriptor *const io_descr)
 {
 	/* Transfer completed */
-	gpio_toggle_pin_level(LED_system);
+	//gpio_toggle_pin_level(LED_system);
 }
 
 static void rx_cb_UART_debug(const struct usart_async_descriptor *const io_descr)
 {
 	/* Receive completed */
 	gpio_toggle_pin_level(LED_system);
-	data_arrived = 1;
+	data_arrived = true;
 }
 
 int main(void)
@@ -42,5 +42,15 @@
 	usart_async_register_callback(&UART_debug, USART_ASYNC_RXC_CB, rx_cb_UART_debug);
 	usart_async_enable(&UART_debug);
 
-	cdcd_acm_example();
+	usb_start();
+
+	while (true) { // main loop
+		if (data_arrived) { // input on UART debug
+			data_arrived = false; // clear flag
+			uint8_t recv_char; // to store the input
+			while (io_read(&UART_debug.io, &recv_char, 1) == 1) { // read input
+				while (io_write(&UART_debug.io, &recv_char, 1) != 1); // echo back to output
+			}
+		}
+	}
 }
diff --git a/sysmoOCTSIM/usb_start.c b/sysmoOCTSIM/usb_start.c
index de86172..d02edc0 100644
--- a/sysmoOCTSIM/usb_start.c
+++ b/sysmoOCTSIM/usb_start.c
@@ -93,25 +93,15 @@
 }
 
 /**
- * Example of using CDC ACM Function.
- * \note
- * In this example, we will use a PC as a USB host:
- * - Connect the DEBUG USB on XPLAINED board to PC for program download.
- * - Connect the TARGET USB on XPLAINED board to PC for running program.
- * The application will behave as a virtual COM.
- * - Open a HyperTerminal or other COM tools in PC side.
- * - Send out a character or string and it will echo the content received.
+ * \brief Start USB stack
  */
-void cdcd_acm_example(void)
+void usb_start(void)
 {
 	while (!cdcdf_acm_is_enabled()) {
 		// wait cdc acm to be installed
 	};
 
 	cdcdf_acm_register_callback(CDCDF_ACM_CB_STATE_C, (FUNC_PTR)usb_device_cb_state_c);
-
-	while (1) {
-	}
 }
 
 void usb_init(void)
diff --git a/sysmoOCTSIM/usb_start.h b/sysmoOCTSIM/usb_start.h
index 48b2735..daf30cc 100644
--- a/sysmoOCTSIM/usb_start.h
+++ b/sysmoOCTSIM/usb_start.h
@@ -15,7 +15,7 @@
 #include "cdcdf_acm.h"
 #include "cdcdf_acm_desc.h"
 
-void cdcd_acm_example(void);
+void usb_start(void);
 void cdc_device_acm_init(void);
 
 /**

-- 
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Gerrit-Project: osmo-ccid-firmware
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I44b15079672b4058de1fa08365541317d54958dc
Gerrit-Change-Number: 12807
Gerrit-PatchSet: 1
Gerrit-Owner: Kévin Redon <kredon at sysmocom.de>
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