stmhal: Factor out stdio and readline to separate files.

Adds readline_init() to clear readline history on soft reset.  Addresses
issue #387.

1 files changed, 54 insertions, 0 deletions

diff --git a/stmhal/pybstdio.c b/stmhal/pybstdio.c
new file mode 100644
index 000000000..95582d330
--- /dev/null
+++ b/stmhal/pybstdio.c
@@ -0,0 +1,54 @@
+#include <stm32f4xx_hal.h>
+
+#include "misc.h"
+#include "mpconfig.h"
+#include "qstr.h"
+#include "misc.h"
+#include "obj.h"
+#include "pybstdio.h"
+#include "storage.h"
+#include "usb.h"
+#include "usart.h"
+
+void stdout_tx_str(const char *str) {
+    if (pyb_usart_global_debug != PYB_USART_NONE) {
+        usart_tx_str(pyb_usart_global_debug, str);
+    }
+#if defined(USE_HOST_MODE) && MICROPY_HW_HAS_LCD
+    lcd_print_str(str);
+#endif
+    usb_vcp_send_str(str);
+}
+
+void stdout_tx_strn(const char *str, uint len) {
+    if (pyb_usart_global_debug != PYB_USART_NONE) {
+        usart_tx_strn(pyb_usart_global_debug, str, len);
+    }
+#if defined(USE_HOST_MODE) && MICROPY_HW_HAS_LCD
+    lcd_print_strn(str, len);
+#endif
+    usb_vcp_send_strn(str, len);
+}
+
+int stdin_rx_chr(void) {
+    for (;;) {
+#if 0
+#ifdef USE_HOST_MODE
+        pyb_usb_host_process();
+        int c = pyb_usb_host_get_keyboard();
+        if (c != 0) {
+            return c;
+        }
+#endif
+#endif
+        if (usb_vcp_rx_num() != 0) {
+            return usb_vcp_rx_get();
+        } else if (pyb_usart_global_debug != PYB_USART_NONE && usart_rx_any(pyb_usart_global_debug)) {
+            return usart_rx_char(pyb_usart_global_debug);
+        }
+        HAL_Delay(1);
+        if (storage_needs_flush()) {
+            storage_flush();
+        }
+    }
+}