esp32: Support building with network and/or bluetooth disabled.

(and a smaller binary size as a result)

Signed-off-by: Angus Gratton <[email protected]>

Author: projectgus

ports/esp32/main.c

@@ -90,14 +90,16 @@ int vprintf_null(const char *format, va_list ap) {
     return 0;
 }
 
-time_t platform_mbedtls_time(time_t *timer) {
+#if MICROPY_SSL_MBEDTLS
+static time_t platform_mbedtls_time(time_t *timer) {
     // mbedtls_time requires time in seconds from EPOCH 1970
 
     struct timeval tv;
     gettimeofday(&tv, NULL);
 
     return tv.tv_sec + TIMEUTILS_SECONDS_1970_TO_2000;
 }
+#endif
 
 void mp_task(void *pvParameter) {
     volatile uint32_t sp = (uint32_t)esp_cpu_get_sp();
@@ -114,8 +116,10 @@ void mp_task(void *pvParameter) {
     #endif
     machine_init();
 
+    #if MICROPY_SSL_MBEDTLS
     // Configure time function, for mbedtls certificate time validation.
     mbedtls_platform_set_time(platform_mbedtls_time);
+    #endif
 
     esp_err_t err = esp_event_loop_create_default();
     if (err != ESP_OK) {

ports/esp32/modsocket.c

@@ -55,6 +55,9 @@
 #include "lwip/igmp.h"
 #include "esp_log.h"
 
+// See note at bottom of file about why this isn't MICROPY_PY_SOCKET
+#if MICROPY_PY_NETWORK
+
 #define SOCKET_POLL_US (100000)
 #define MDNS_QUERY_TIMEOUT_MS (5000)
 #define MDNS_LOCAL_SUFFIX ".local"
@@ -1028,3 +1031,5 @@ const mp_obj_module_t mp_module_socket = {
 // this will not conflict with the common implementation provided by
 // extmod/mod{lwip,socket}.c.
 MP_REGISTER_EXTENSIBLE_MODULE(MP_QSTR_socket, mp_module_socket);
+
+#endif // MICROPY_PY_NETWORK

ports/esp32/mpconfigport.h

@@ -92,6 +92,9 @@
 #endif
 #ifndef MICROPY_PY_BLUETOOTH
 #define MICROPY_PY_BLUETOOTH                (1)
+#endif
+
+#if MICROPY_PY_BLUETOOTH
 #define MICROPY_PY_BLUETOOTH_USE_SYNC_EVENTS (1)
 #define MICROPY_PY_BLUETOOTH_USE_SYNC_EVENTS_WITH_INTERLOCK (1)
 // Event stack size is the RTOS stack size minus an allowance for the stack used
@@ -102,7 +105,8 @@
 #define MICROPY_PY_BLUETOOTH_ENABLE_PAIRING_BONDING (1)
 #define MICROPY_BLUETOOTH_NIMBLE            (1)
 #define MICROPY_BLUETOOTH_NIMBLE_BINDINGS_ONLY (1)
-#endif
+#endif // MICROPY_PY_BLUETOOTH
+
 #define MICROPY_PY_RANDOM_SEED_INIT_FUNC    (esp_random())
 #define MICROPY_PY_OS_INCLUDEFILE           "ports/esp32/modos.c"
 #define MICROPY_PY_OS_DUPTERM               (1)
@@ -158,7 +162,9 @@
 #define MICROPY_PY_MACHINE_UART_IRQ         (1)
 #define MICROPY_PY_MACHINE_WDT              (1)
 #define MICROPY_PY_MACHINE_WDT_INCLUDEFILE  "ports/esp32/machine_wdt.c"
+#ifndef MICROPY_PY_NETWORK
 #define MICROPY_PY_NETWORK (1)
+#endif
 #ifndef MICROPY_PY_NETWORK_HOSTNAME_DEFAULT
 #if CONFIG_IDF_TARGET_ESP32
 #define MICROPY_PY_NETWORK_HOSTNAME_DEFAULT "mpy-esp32"
@@ -189,10 +195,10 @@
 #ifndef MICROPY_HW_ESP_NEW_I2C_DRIVER
 #define MICROPY_HW_ESP_NEW_I2C_DRIVER       (0)
 #endif
-#define MICROPY_PY_SSL                      (1)
-#define MICROPY_SSL_MBEDTLS                 (1)
-#define MICROPY_PY_WEBSOCKET                (1)
-#define MICROPY_PY_WEBREPL                  (1)
+#define MICROPY_PY_SSL                      (MICROPY_PY_NETWORK)
+#define MICROPY_SSL_MBEDTLS                 (MICROPY_PY_SSL)
+#define MICROPY_PY_WEBSOCKET                (MICROPY_PY_NETWORK)
+#define MICROPY_PY_WEBREPL                  (MICROPY_PY_NETWORK)
 #define MICROPY_PY_ONEWIRE                  (1)
 #define MICROPY_PY_SOCKET_EVENTS            (MICROPY_PY_WEBREPL)
 #define MICROPY_PY_BLUETOOTH_RANDOM_ADDR    (1)