esp32: Fix ESP32-C3 USB serial/jtag peripheral pre-IDF 5.1.

Regression in 0a11832c in IDF 5.0.x where macro
CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG_ENABLED is not defined.

With this patch, ESP32-S3 still USB Serial/JTAG incorrectly (now on all
ESP-IDF versions).

Closes #15701

This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>

ports/esp32/machine_pin.c

@@ -159,7 +159,7 @@ static mp_obj_t machine_pin_obj_init_helper(const machine_pin_obj_t *self, size_
         }
     }
 
-    #if CONFIG_IDF_TARGET_ESP32C3 && CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG_ENABLED
+    #if CONFIG_IDF_TARGET_ESP32C3 && MICROPY_HW_ESP_USB_SERIAL_JTAG
     if (index == 18 || index == 19) {
         CLEAR_PERI_REG_MASK(USB_SERIAL_JTAG_CONF0_REG, USB_SERIAL_JTAG_USB_PAD_ENABLE);
     }

ports/esp32/machine_pin.h

@@ -87,7 +87,7 @@
 #define MICROPY_HW_ENABLE_GPIO11 (1)
 #define MICROPY_HW_ENABLE_GPIO12 (1)
 #define MICROPY_HW_ENABLE_GPIO13 (1)
-#if !CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG_ENABLED
+#if !MICROPY_HW_ESP_USB_SERIAL_JTAG
 #define MICROPY_HW_ENABLE_GPIO18 (1)
 #define MICROPY_HW_ENABLE_GPIO19 (1)
 #endif

ports/esp32/main.c

@@ -99,7 +99,7 @@ void mp_task(void *pvParameter) {
     #if MICROPY_PY_THREAD
     mp_thread_init(pxTaskGetStackStart(NULL), MICROPY_TASK_STACK_SIZE / sizeof(uintptr_t));
     #endif
-    #if CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG_ENABLED
+    #if MICROPY_HW_ESP_USB_SERIAL_JTAG
     usb_serial_jtag_init();
     #elif CONFIG_USB_OTG_SUPPORTED
     usb_init();

ports/esp32/mpconfigport.h

@@ -260,6 +260,11 @@ typedef long mp_off_t;
 // board specifics
 #define MICROPY_PY_SYS_PLATFORM "esp32"
 
+// Enable stdio over USB Serial/JTAG peripheral
+#ifndef MICROPY_HW_ESP_USB_SERIAL_JTAG
+#define MICROPY_HW_ESP_USB_SERIAL_JTAG      (SOC_USB_SERIAL_JTAG_SUPPORTED)
+#endif
+
 // ESP32-S3 extended IO for 47 & 48
 #ifndef MICROPY_HW_ESP32S3_EXTENDED_IO
 #define MICROPY_HW_ESP32S3_EXTENDED_IO      (1)

ports/esp32/mphalport.c

@@ -104,7 +104,7 @@ void check_esp_err_(esp_err_t code, const char *func, const int line, const char
 
 uintptr_t mp_hal_stdio_poll(uintptr_t poll_flags) {
     uintptr_t ret = 0;
-    #if CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG_ENABLED
+    #if MICROPY_HW_ESP_USB_SERIAL_JTAG
     usb_serial_jtag_poll_rx();
     #endif
     if ((poll_flags & MP_STREAM_POLL_RD) && stdin_ringbuf.iget != stdin_ringbuf.iput) {
@@ -118,7 +118,7 @@ uintptr_t mp_hal_stdio_poll(uintptr_t poll_flags) {
 
 int mp_hal_stdin_rx_chr(void) {
     for (;;) {
-        #if CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG_ENABLED
+        #if MICROPY_HW_ESP_USB_SERIAL_JTAG
         usb_serial_jtag_poll_rx();
         #endif
         int c = ringbuf_get(&stdin_ringbuf);
@@ -143,7 +143,7 @@ mp_uint_t mp_hal_stdout_tx_strn(const char *str, size_t len) {
     if (release_gil) {
         MP_THREAD_GIL_EXIT();
     }
-    #if CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG_ENABLED
+    #if MICROPY_HW_ESP_USB_SERIAL_JTAG
     usb_serial_jtag_tx_strn(str, len);
     did_write = true;
     #elif CONFIG_USB_OTG_SUPPORTED

ports/esp32/uart.h

@@ -30,7 +30,7 @@
 
 // Whether to enable the REPL on a UART.
 #ifndef MICROPY_HW_ENABLE_UART_REPL
-#define MICROPY_HW_ENABLE_UART_REPL (!CONFIG_USB_OTG_SUPPORTED && !CONFIG_ESP_CONSOLE_USB_CDC && !CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG_ENABLED)
+#define MICROPY_HW_ENABLE_UART_REPL (!CONFIG_USB_OTG_SUPPORTED && !CONFIG_ESP_CONSOLE_USB_CDC && !MICROPY_HW_ESP_USB_SERIAL_JTAG)
 #endif
 
 #if MICROPY_HW_ENABLE_UART_REPL

ports/esp32/usb.c

@@ -28,7 +28,7 @@
 #include "py/mphal.h"
 #include "usb.h"
 
-#if CONFIG_USB_OTG_SUPPORTED && !CONFIG_ESP_CONSOLE_USB_CDC && !CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG_ENABLED
+#if CONFIG_USB_OTG_SUPPORTED && !CONFIG_ESP_CONSOLE_USB_CDC && !MICROPY_HW_ESP_USB_SERIAL_JTAG
 
 #include "esp_timer.h"
 #ifndef NO_QSTR
@@ -100,4 +100,4 @@ void usb_tx_strn(const char *str, size_t len) {
     }
 }
 
-#endif // CONFIG_USB_OTG_SUPPORTED && !CONFIG_ESP_CONSOLE_USB_CDC && !CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG_ENABLED
+#endif // CONFIG_USB_OTG_SUPPORTED && !CONFIG_ESP_CONSOLE_USB_CDC && !MICROPY_HW_ESP_USB_SERIAL_JTAG

ports/esp32/usb_serial_jtag.c

@@ -28,7 +28,7 @@
 #include "py/mphal.h"
 #include "usb_serial_jtag.h"
 
-#if CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG_ENABLED
+#if MICROPY_HW_ESP_USB_SERIAL_JTAG
 
 #include "hal/usb_serial_jtag_ll.h"
 #include "esp_intr_alloc.h"
@@ -117,4 +117,4 @@ void usb_serial_jtag_tx_strn(const char *str, size_t len) {
     }
 }
 
-#endif // CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG_ENABLED
+#endif // MICROPY_HW_ESP_USB_SERIAL_JTAG