Refactor OTA API

examples/device-dashboard/net.c

@@ -196,49 +196,9 @@ static void handle_firmware_upload(struct mg_connection *c,
     mg_http_reply(c, 500, "", "mg_ota_end() failed\n", tot);
   } else {
     mg_http_reply(c, 200, s_json_header, "true\n");
-    if (data.len == 0) {
-      // Successful mg_ota_end() called, schedule device reboot
-      mg_timer_add(c->mgr, 500, 0, (void (*)(void *)) mg_device_reset, NULL);
-    }
   }
 }
 
-static void handle_firmware_commit(struct mg_connection *c) {
-  mg_http_reply(c, 200, s_json_header, "%s\n",
-                mg_ota_commit() ? "true" : "false");
-}
-
-static void handle_firmware_rollback(struct mg_connection *c) {
-  mg_http_reply(c, 200, s_json_header, "%s\n",
-                mg_ota_rollback() ? "true" : "false");
-}
-
-static size_t print_status(void (*out)(char, void *), void *ptr, va_list *ap) {
-  int fw = va_arg(*ap, int);
-  return mg_xprintf(out, ptr, "{%m:%d,%m:%c%lx%c,%m:%u,%m:%u}\n",
-                    MG_ESC("status"), mg_ota_status(fw), MG_ESC("crc32"), '"',
-                    mg_ota_crc32(fw), '"', MG_ESC("size"), mg_ota_size(fw),
-                    MG_ESC("timestamp"), mg_ota_timestamp(fw));
-}
-
-static void handle_firmware_status(struct mg_connection *c) {
-  mg_http_reply(c, 200, s_json_header, "[%M,%M]\n", print_status,
-                MG_FIRMWARE_CURRENT, print_status, MG_FIRMWARE_PREVIOUS);
-}
-
-static void handle_device_reset(struct mg_connection *c) {
-  mg_http_reply(c, 200, s_json_header, "true\n");
-  mg_timer_add(c->mgr, 500, 0, (void (*)(void *)) mg_device_reset, NULL);
-}
-
-static void handle_device_eraselast(struct mg_connection *c) {
-  size_t ss = mg_flash_sector_size(), size = mg_flash_size();
-  char *base = (char *) mg_flash_start(), *last = base + size - ss;
-  if (mg_flash_bank() == 2) last -= size / 2;
-  mg_flash_erase(last);
-  mg_http_reply(c, 200, s_json_header, "true\n");
-}
-
 // HTTP request handler function
 static void fn(struct mg_connection *c, int ev, void *ev_data) {
   if (ev == MG_EV_ACCEPT) {
@@ -270,16 +230,6 @@ static void fn(struct mg_connection *c, int ev, void *ev_data) {
       handle_settings_set(c, hm->body);
     } else if (mg_match(hm->uri, mg_str("/api/firmware/upload"), NULL)) {
       handle_firmware_upload(c, hm);
-    } else if (mg_match(hm->uri, mg_str("/api/firmware/commit"), NULL)) {
-      handle_firmware_commit(c);
-    } else if (mg_match(hm->uri, mg_str("/api/firmware/rollback"), NULL)) {
-      handle_firmware_rollback(c);
-    } else if (mg_match(hm->uri, mg_str("/api/firmware/status"), NULL)) {
-      handle_firmware_status(c);
-    } else if (mg_match(hm->uri, mg_str("/api/device/reset"), NULL)) {
-      handle_device_reset(c);
-    } else if (mg_match(hm->uri, mg_str("/api/device/eraselast"), NULL)) {
-      handle_device_eraselast(c);
     } else {
       struct mg_http_serve_opts opts;
       memset(&opts, 0, sizeof(opts));

examples/esp32/device-dashboard/main/main.c

@@ -27,7 +27,15 @@ void app_main(void) {
   for (;;) mg_mgr_poll(&mgr, 1000);  // Infinite event loop
 }
 
-#if MG_DEVICE == MG_DEVICE_CUSTOM
+#if MG_OTA == MG_OTA_CUSTOM
+enum {
+  MG_OTA_UNAVAILABLE = 0,  // No OTA information is present
+  MG_OTA_FIRST_BOOT = 1,   // Device booting the first time after the OTA
+  MG_OTA_UNCOMMITTED = 2,  // Ditto, but marking us for the rollback
+  MG_OTA_COMMITTED = 3     // The firmware is good
+};
+enum { MG_FIRMWARE_CURRENT = 0, MG_FIRMWARE_PREVIOUS = 1 };
+
 void *mg_flash_start(void) {
   return NULL;
 }
@@ -57,9 +65,7 @@ bool mg_flash_write(void *addr, const void *buf, size_t len) {
 void mg_device_reset(void) {
   esp_restart();
 }
-#endif
 
-#if MG_OTA == MG_OTA_CUSTOM
 #include "esp_app_format.h"
 #include "esp_ota_ops.h"
 
@@ -121,6 +127,14 @@ bool check_fw_header(const void* buf, size_t len) {
   return true;
 }
 
+size_t mg_ota_size(int fw) {
+  const esp_partition_t *p = get_partition_from_fw(fw);
+  if (NULL == p) {
+    return 0;
+  }
+  return p->size;
+}
+
 bool mg_ota_begin(size_t new_firmware_size) {
   rx_checked = false;
   if (s_size) {
@@ -255,11 +269,4 @@ uint32_t mg_ota_timestamp(int fw) {
   return mktime(&datetime);
 }
 
-size_t mg_ota_size(int fw) {
-  const esp_partition_t *p = get_partition_from_fw(fw);
-  if (NULL == p) {
-    return 0;
-  }
-  return p->size;
-}
 #endif

examples/esp32/device-dashboard/main/mongoose_config.h

@@ -3,4 +3,3 @@
 #define MG_ENABLE_PACKED_FS 1
 #define MG_TLS MG_TLS_NONE	// change to 'MG_TLS_MBED' to enable TLS
 #define MG_OTA MG_OTA_CUSTOM
-#define MG_DEVICE MG_DEVICE_CUSTOM

examples/modbus-dashboard/net.c

@@ -241,7 +241,6 @@ static void fn(struct mg_connection *c, int ev, void *ev_data) {
     } else if (mg_match(hm->uri, mg_str("/api/modbus/exec"), NULL)) {
       handle_modbus_exec(c, hm->body);
     } else if (mg_match(hm->uri, mg_str("/api/device/reset"), NULL)) {
-      mg_timer_add(c->mgr, 500, 0, (void (*)(void *)) mg_device_reset, NULL);
       mg_http_reply(c, 200, s_json_header, "true\n");
     } else {
       struct mg_http_serve_opts opts;

examples/mqtt-dashboard/device/net.c

@@ -53,15 +53,6 @@ static void set_device_id(void) {
   g_device_id = strdup(buf);
 }
 
-static size_t print_fw_status(void (*out)(char, void *), void *ptr,
-                              va_list *ap) {
-  int fw = va_arg(*ap, int);
-  return mg_xprintf(out, ptr, "{%m:%d,%m:%c%lx%c,%m:%u,%m:%u}",
-                    MG_ESC("status"), mg_ota_status(fw), MG_ESC("crc32"), '"',
-                    mg_ota_crc32(fw), '"', MG_ESC("size"), mg_ota_size(fw),
-                    MG_ESC("timestamp"), mg_ota_timestamp(fw));
-}
-
 static size_t print_shorts(void (*out)(char, void *), void *ptr, va_list *ap) {
   uint16_t *array = va_arg(*ap, uint16_t *);
   int i, len = 0, num_elems = va_arg(*ap, int);
@@ -87,7 +78,7 @@ static void publish_status(struct mg_connection *c) {
 
   // Print JSON notification into the io buffer
   mg_xprintf(mg_pfn_iobuf, &io,
-             "{%m:%m,%m:{%m:%m,%m:%d,%m:%d,%m:[%M],%m:[%M],%m:%M,%m:%M}}",  //
+             "{%m:%m,%m:{%m:%m,%m:%d,%m:%d,%m:[%M],%m:[%M]}}",  //
              MG_ESC("method"), MG_ESC("status.notify"), MG_ESC("params"),   //
              MG_ESC("status"), MG_ESC("online"),                            //
              MG_ESC(("log_level")), s_device_config.log_level,              //
@@ -95,9 +86,7 @@ static void publish_status(struct mg_connection *c) {
              MG_ESC(("pin_map")), print_shorts, s_device_config.pin_map,
              s_device_config.pin_count,  //
              MG_ESC(("pin_state")), print_bools, s_device_config.pin_state,
-             s_device_config.pin_count,                                  //
-             MG_ESC(("crnt_fw")), print_fw_status, MG_FIRMWARE_CURRENT,  //
-             MG_ESC(("prev_fw")), print_fw_status, MG_FIRMWARE_PREVIOUS);
+             s_device_config.pin_count);
 
   memset(&pub_opts, 0, sizeof(pub_opts));
   mg_snprintf(topic, sizeof(topic), "%s/%s/status", g_root_topic, g_device_id);
@@ -160,27 +149,6 @@ static void rpc_config_set(struct mg_rpc_req *r) {
   }
 }
 
-static void rpc_ota_commit(struct mg_rpc_req *r) {
-  if (mg_ota_commit()) {
-    mg_rpc_ok(r, "%m", MG_ESC("ok"));
-  } else {
-    mg_rpc_err(r, 1, "Failed to commit the firmware");
-  }
-}
-
-static void rpc_device_reset(struct mg_rpc_req *r) {
-  mg_rpc_ok(r, "%m", MG_ESC("ok"));
-  mg_timer_add(s_conn->mgr, 500, 0, (void (*)(void *)) mg_device_reset, NULL);
-}
-
-static void rpc_ota_rollback(struct mg_rpc_req *r) {
-  if (mg_ota_rollback()) {
-    mg_rpc_ok(r, "%m", MG_ESC("ok"));
-  } else {
-    mg_rpc_err(r, 1, "Failed to rollback to the previous firmware");
-  }
-}
-
 static void rpc_ota_upload(struct mg_rpc_req *r) {
   long ofs = mg_json_get_long(r->frame, "$.params.offset", -1);
   long tot = mg_json_get_long(r->frame, "$.params.total", -1);
@@ -200,10 +168,6 @@ static void rpc_ota_upload(struct mg_rpc_req *r) {
       mg_rpc_err(r, 1, "mg_ota_end() failed\n", tot);
     } else {
       mg_rpc_ok(r, "%m", MG_ESC("ok"));
-      if (len == 0) {  // Successful mg_ota_end() called, schedule device reboot
-        mg_timer_add(s_conn->mgr, 500, 0, (void (*)(void *)) mg_device_reset,
-                     NULL);
-      }
     }
     free(buf);
   }
@@ -297,11 +261,8 @@ void web_init(struct mg_mgr *mgr) {
 
   // Configure JSON-RPC functions we're going to handle
   mg_rpc_add(&s_rpc, mg_str("config.set"), rpc_config_set, NULL);
-  mg_rpc_add(&s_rpc, mg_str("ota.commit"), rpc_ota_commit, NULL);
-  mg_rpc_add(&s_rpc, mg_str("ota.rollback"), rpc_ota_rollback, NULL);
   mg_rpc_add(&s_rpc, mg_str("ota.upload"), rpc_ota_upload, NULL);
-  mg_rpc_add(&s_rpc, mg_str("device.reset"), rpc_device_reset, NULL);
-
+  
   mg_timer_add(mgr, 3000, MG_TIMER_REPEAT | MG_TIMER_RUN_NOW, timer_reconnect,
                mgr);
   mg_timer_add(mgr, ping_interval_ms, MG_TIMER_REPEAT, timer_ping, mgr);

examples/nxp/rt1170-evk-make-baremetal-builtin/mongoose_config.h

@@ -2,8 +2,7 @@
 
 // See https://mongoose.ws/documentation/#build-options
 #define MG_ARCH MG_ARCH_NEWLIB
-#define MG_OTA MG_OTA_FLASH
-#define MG_DEVICE MG_DEVICE_RT1060
+#define MG_OTA MG_OTA_RT1060
 
 #define MG_ENABLE_TCPIP 1
 #define MG_ENABLE_DRIVER_IMXRT 1

examples/renesas/ek-ra6m4-make-baremetal-builtin/mongoose_config.h

@@ -2,8 +2,6 @@
 
 // See https://mongoose.ws/documentation/#build-options
 #define MG_ARCH MG_ARCH_NEWLIB
-#define MG_OTA MG_OTA_FLASH
-#define MG_DEVICE MG_DEVICE_STM32H5
 
 #define MG_ENABLE_TCPIP 1
 #define MG_ENABLE_CUSTOM_MILLIS 1

examples/wch/ch32v307-make-baremetal-builtin/main.c

@@ -7,16 +7,16 @@
 #define BLINK_PERIOD_MS 1000  // LED_PIN blinking period in millis
 
 // This flash space resides at after the 0-wait 320k area
-static char *s_flash_space = (char *) (0x8000000 + 320 * 1024);
+// static char *s_flash_space = (char *) (0x8000000 + 320 * 1024);
 
 bool web_load_settings(void *buf, size_t len) {
-  if (*(uint32_t *) s_flash_space != SETTINGS_MAGIC) return false;
-  memcpy(buf, s_flash_space, len);
-  return true;
+  (void) buf, (void) len;
+  return false;
 }
 
 bool web_save_settings(void *buf, size_t len) {
-  return mg_flash_write(s_flash_space, buf, len);
+  (void) buf, (void) len;
+  return true;
 }
 
 static void timer_fn(void *arg) {

examples/wch/ch32v307-make-baremetal-builtin/mongoose_config.h

@@ -2,8 +2,7 @@
 
 // See https://mongoose.ws/documentation/#build-options
 #define MG_ARCH MG_ARCH_NEWLIB
-#define MG_OTA MG_OTA_FLASH
-#define MG_DEVICE MG_DEVICE_CH32V307
+#define MG_OTA MG_OTA_CH32V307
 
 #define MG_ENABLE_TCPIP 1
 #define MG_ENABLE_CUSTOM_MILLIS 1