start with USB CDC echo example
this is the Atmel START USB CDC Echo example project for the
SAM E54 Xplained Pro board using an Atmel ATSAME54P20A
microcontroller.
Atmel START information:
- Version: 1.4.1810 (Dec 18, 2018, 5:52 AM GMT+1)
- Server: 1.4.93
- Content version: 1.0.1340
This will serve as basis for the sysmoOCTSIM project
A jenkins contrib script has also been added to the
osmo-ccid-firmware project to build the sysmoOCTSIM firmware
Change-Id: I356de75e7b730d63fb819248e71d36f785932199
diff --git a/sysmoOCTSIM/usb_start.c b/sysmoOCTSIM/usb_start.c
new file mode 100644
index 0000000..de86172
--- /dev/null
+++ b/sysmoOCTSIM/usb_start.c
@@ -0,0 +1,121 @@
+/*
+ * Code generated from Atmel Start.
+ *
+ * This file will be overwritten when reconfiguring your Atmel Start project.
+ * Please copy examples or other code you want to keep to a separate file or main.c
+ * to avoid loosing it when reconfiguring.
+ */
+#include "atmel_start.h"
+#include "usb_start.h"
+
+#if CONF_USBD_HS_SP
+static uint8_t single_desc_bytes[] = {
+ /* Device descriptors and Configuration descriptors list. */
+ CDCD_ACM_HS_DESCES_LS_FS};
+static uint8_t single_desc_bytes_hs[] = {
+ /* Device descriptors and Configuration descriptors list. */
+ CDCD_ACM_HS_DESCES_HS};
+#define CDCD_ECHO_BUF_SIZ CONF_USB_CDCD_ACM_DATA_BULKIN_MAXPKSZ_HS
+#else
+static uint8_t single_desc_bytes[] = {
+ /* Device descriptors and Configuration descriptors list. */
+ CDCD_ACM_DESCES_LS_FS};
+#define CDCD_ECHO_BUF_SIZ CONF_USB_CDCD_ACM_DATA_BULKIN_MAXPKSZ
+#endif
+
+static struct usbd_descriptors single_desc[]
+ = {{single_desc_bytes, single_desc_bytes + sizeof(single_desc_bytes)}
+#if CONF_USBD_HS_SP
+ ,
+ {single_desc_bytes_hs, single_desc_bytes_hs + sizeof(single_desc_bytes_hs)}
+#endif
+};
+
+/** Buffers to receive and echo the communication bytes. */
+static uint32_t usbd_cdc_buffer[CDCD_ECHO_BUF_SIZ / 4];
+
+/** Ctrl endpoint buffer */
+static uint8_t ctrl_buffer[64];
+
+/**
+ * \brief Callback invoked when bulk OUT data received
+ */
+static bool usb_device_cb_bulk_out(const uint8_t ep, const enum usb_xfer_code rc, const uint32_t count)
+{
+ cdcdf_acm_write((uint8_t *)usbd_cdc_buffer, count);
+
+ /* No error. */
+ return false;
+}
+
+/**
+ * \brief Callback invoked when bulk IN data received
+ */
+static bool usb_device_cb_bulk_in(const uint8_t ep, const enum usb_xfer_code rc, const uint32_t count)
+{
+ /* Echo data. */
+ cdcdf_acm_read((uint8_t *)usbd_cdc_buffer, sizeof(usbd_cdc_buffer));
+
+ /* No error. */
+ return false;
+}
+
+/**
+ * \brief Callback invoked when Line State Change
+ */
+static bool usb_device_cb_state_c(usb_cdc_control_signal_t state)
+{
+ if (state.rs232.DTR) {
+ /* Callbacks must be registered after endpoint allocation */
+ cdcdf_acm_register_callback(CDCDF_ACM_CB_READ, (FUNC_PTR)usb_device_cb_bulk_out);
+ cdcdf_acm_register_callback(CDCDF_ACM_CB_WRITE, (FUNC_PTR)usb_device_cb_bulk_in);
+ /* Start Rx */
+ cdcdf_acm_read((uint8_t *)usbd_cdc_buffer, sizeof(usbd_cdc_buffer));
+ }
+
+ /* No error. */
+ return false;
+}
+
+/**
+ * \brief CDC ACM Init
+ */
+void cdc_device_acm_init(void)
+{
+ /* usb stack init */
+ usbdc_init(ctrl_buffer);
+
+ /* usbdc_register_funcion inside */
+ cdcdf_acm_init();
+
+ usbdc_start(single_desc);
+ usbdc_attach();
+}
+
+/**
+ * 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.
+ */
+void cdcd_acm_example(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)
+{
+
+ cdc_device_acm_init();
+}