Update IDF libraries

tools/esptool.py

@@ -30,7 +30,7 @@ import base64
 import zlib
 import shlex
 
-__version__ = "2.0-beta1"
+__version__ = "2.0-beta2"
 
 MAX_UINT32 = 0xffffffff
 MAX_UINT24 = 0xffffff
@@ -281,14 +281,19 @@ class ESPLoader(object):
         for i in range(7):
             self.command()
 
-    def connect(self, mode='default_reset'):
+    def _connect_attempt(self, mode='default_reset', esp32r0_delay=False):
-        """ Try connecting repeatedly until successful, or giving up """
+        """ A single connection attempt, with esp32r0 workaround options """
-        print('Connecting...', end='')
+        # esp32r0_delay is a workaround for bugs with the most common auto reset
-        sys.stdout.flush()
+        # circuit and Windows, if the EN pin on the dev board does not have
+        # enough capacitance.
+        #
+        # Newer dev boards shouldn't have this problem (higher value capacitor
+        # on the EN pin), and ESP32 revision 1 can't use this workaround as it
+        # relies on a silicon bug.
+        #
+        # Details: https://github.com/espressif/esptool/issues/136
         last_error = None
 
-        try:
-            for _ in range(10):
         # issue reset-to-bootloader:
         # RTS = either CH_PD/EN or nRESET (both active low = chip in reset
         # DTR = GPIO0 (active low = boot to flasher)
@@ -298,35 +303,54 @@ class ESPLoader(object):
         if mode != 'no_reset':
             self._port.setDTR(False)  # IO0=HIGH
             self._port.setRTS(True)   # EN=LOW, chip in reset
-                    time.sleep(0.05)
+            time.sleep(0.1)
+            if esp32r0_delay:
+                # Some chips are more likely to trigger the esp32r0
+                # watchdog reset silicon bug if they're held with EN=LOW
+                # for a longer period
+                time.sleep(1.2)
             self._port.setDTR(True)   # IO0=LOW
             self._port.setRTS(False)  # EN=HIGH, chip out of reset
-                    if mode == 'esp32r0':
+            if esp32r0_delay:
-                        # this is a workaround for a bug with the most
+                # Sleep longer after reset.
-                        # common auto reset circuit and Windows, if the EN
+                # This workaround only works on revision 0 ESP32 chips,
-                        # pin on the dev board does not have enough
+                # it exploits a silicon bug spurious watchdog reset.
-                        # capacitance. This workaround only works on
-                        # revision 0 ESP32 chips, it exploits a silicon
-                        # bug spurious watchdog reset.
-                        #
-                        # Details: https://github.com/espressif/esptool/issues/136
                 time.sleep(0.4)  # allow watchdog reset to occur
             time.sleep(0.05)
             self._port.setDTR(False)  # IO0=HIGH, done
 
         self._port.timeout = 0.1
-                for _ in range(4):
+        for _ in range(5):
             try:
                 self.flush_input()
                 self._port.flushOutput()
                 self.sync()
                 self._port.timeout = 5
-                        return
+                return None
             except FatalError as e:
+                if esp32r0_delay:
+                    print('_', end='')
+                else:
                     print('.', end='')
                 sys.stdout.flush()
                 time.sleep(0.05)
                 last_error = e
+        return last_error
+
+    def connect(self, mode='default_reset'):
+        """ Try connecting repeatedly until successful, or giving up """
+        print('Connecting...', end='')
+        sys.stdout.flush()
+        last_error = None
+
+        try:
+            for _ in range(10):
+                last_error = self._connect_attempt(mode=mode, esp32r0_delay=False)
+                if last_error is None:
+                    return
+                last_error = self._connect_attempt(mode=mode, esp32r0_delay=True)
+                if last_error is None:
+                    return
         finally:
             print('')  # end 'Connecting...' line
         raise FatalError('Failed to connect to %s: %s' % (self.CHIP_NAME, last_error))
@@ -653,8 +677,7 @@ class ESPLoader(object):
         if data_bits == 0:
             self.write_reg(SPI_W0_REG, 0)  # clear data register before we read it
         else:
-            if len(data) % 4 != 0:  # pad to 32-bit multiple
+            data = pad_to(data, 4, b'\00')  # pad to 32-bit multiple
-                data += b'\0' * (4 - (len(data) % 4))
             words = struct.unpack("I" * (len(data) // 4), data)
             next_reg = SPI_W0_REG
             for word in words:
@@ -901,11 +924,11 @@ class ESP32ROM(ESPLoader):
 
     def read_mac(self):
         """ Read MAC from EFUSE region """
-        words = [self.read_efuse(1), self.read_efuse(2)]
+        words = [self.read_efuse(2), self.read_efuse(1)]
         bitstring = struct.pack(">II", *words)
-        bitstring = bitstring[:6]  # trim 2 byte CRC
+        bitstring = bitstring[2:8]  # trim the 2 byte CRC
         try:
-            return tuple(ord(b) for b in bitstring)  # trim 2 byte CRC
+            return tuple(ord(b) for b in bitstring)
         except TypeError:  # Python 3, bitstring elements are already bytes
             return tuple(bitstring)
 
@@ -964,10 +987,7 @@ class ImageSegment(object):
     def __init__(self, addr, data, file_offs=None):
         self.addr = addr
         # pad all ImageSegments to at least 4 bytes length
-        pad_mod = len(data) % 4
+        self.data = pad_to(data, 4, b'\x00')
-        if pad_mod != 0:
-            data += b"\x00" * (4 - pad_mod)
-        self.data = data
         self.file_offs = file_offs
         self.include_in_checksum = True
 
@@ -1210,15 +1230,13 @@ class ESP32FirmwareImage(BaseFirmwareImage):
         self.flash_mode = 0
         self.flash_size_freq = 0
         self.version = 1
-        self.encrypt_flag = False
 
         if load_file is not None:
             segments = self.load_common_header(load_file, ESPLoader.ESP_IMAGE_MAGIC)
             additional_header = list(struct.unpack("B" * 16, load_file.read(16)))
-            self.encrypt_flag = (additional_header[0] == 0x01)
 
-            # check remaining 14 bytes are unused
+            # check these bytes are unused
-            if additional_header[2:] != [0] * 14:
+            if additional_header != [0] * 16:
                 print("WARNING: ESP32 image header contains unknown flags. Possibly this image is from a newer version of esptool.py")
 
             for _ in range(segments):
@@ -1241,9 +1259,9 @@ class ESP32FirmwareImage(BaseFirmwareImage):
         with open(filename, 'wb') as f:
             self.write_common_header(f, self.segments)
 
-            f.write(b'\x01' if self.encrypt_flag else b'\x00')
+            # first 4 bytes of header are read by ROM bootloader for SPI
-            # remaining 15 bytes of header are unused
+            # config, but currently unused
-            f.write(b'\x00' * 15)
+            f.write(b'\x00' * 16)
 
             checksum = ESPLoader.ESP_CHECKSUM_MAGIC
             last_addr = None
@@ -1464,6 +1482,14 @@ def unhexify(hs):
     return s
 
 
+def pad_to(data, alignment, pad_character=b'\xFF'):
+    """ Pad to the next alignment boundary """
+    pad_mod = len(data) % alignment
+    if pad_mod != 0:
+        data += pad_character * (alignment - pad_mod)
+    return data
+
+
 class FatalError(RuntimeError):
     """
     Wrapper class for runtime errors that aren't caused by internal bugs, but by
@@ -1590,7 +1616,7 @@ def write_flash(esp, args):
     for address, argfile in args.addr_filename:
         if args.no_stub:
             print('Erasing flash...')
-        image = argfile.read()
+        image = pad_to(argfile.read(), 4)
         image = _update_image_flash_params(esp, address, flash_params, image)
         calcmd5 = hashlib.md5(image).hexdigest()
         uncsize = len(image)
@@ -1689,10 +1715,6 @@ def elf2image(args):
         print("Creating image for ESP8266...")
         args.chip == 'esp8266'
 
-    if args.chip != 'esp32':
-        if args.set_encrypt_flag:
-            raise FatalError("--encrypt-flag only applies to ESP32 images")
-
     if args.chip == 'esp32':
         image = ESP32FirmwareImage()
     elif args.version == '1':  # ESP8266
@@ -1704,7 +1726,6 @@ def elf2image(args):
     image.flash_mode = {'qio':0, 'qout':1, 'dio':2, 'dout': 3}[args.flash_mode]
     image.flash_size_freq = image.ROM_LOADER.FLASH_SIZES[args.flash_size]
     image.flash_size_freq += {'40m':0, '26m':1, '20m':2, '80m': 0xf}[args.flash_freq]
-    image.encrypt_flag = args.set_encrypt_flag
 
     if args.output is None:
         args.output = image.default_output_name(args.input)
@@ -1776,7 +1797,7 @@ def _verify_flash(esp, args):
     flash_params = _get_flash_params(esp, args)
 
     for address, argfile in args.addr_filename:
-        image = argfile.read()
+        image = pad_to(argfile.read(), 4)
         argfile.seek(0)  # rewind in case we need it again
 
         image = _update_image_flash_params(esp, address, flash_params, image)
@@ -1853,7 +1874,7 @@ def main():
     parser.add_argument(
         '--before',
         help='What to do before connecting to the chip',
-        choices=['default_reset', 'no_reset', 'esp32r0'],
+        choices=['default_reset', 'no_reset'],
         default=os.environ.get('ESPTOOL_BEFORE', 'default_reset'))
 
     parser.add_argument(
@@ -1946,7 +1967,6 @@ def main():
     parser_elf2image.add_argument('input', help='Input ELF file')
     parser_elf2image.add_argument('--output', '-o', help='Output filename prefix (for version 1 image), or filename (for version 2 single image)', type=str)
     parser_elf2image.add_argument('--version', '-e', help='Output image version', choices=['1','2'], default='1')
-    parser_elf2image.add_argument('--set-encrypt-flag', help='Flag image to be encrypted by bootloader after flashing.', action="store_true")
 
     add_spi_flash_subparsers(parser_elf2image)
 
@@ -2152,6 +2172,19 @@ class AddrFilenamePairAction(argparse.Action):
             except IndexError:
                 raise argparse.ArgumentError(self,'Must be pairs of an address and the binary filename to write there')
             pairs.append((address, argfile))
+
+        # Sort the addresses and check for overlapping
+        end = 0
+        for address, argfile in sorted(pairs):
+            argfile.seek(0,2)  # seek to end
+            size = argfile.tell()
+            argfile.seek(0)
+            sector_start = address & ~(ESPLoader.FLASH_SECTOR_SIZE - 1)
+            sector_end = ((address + size + ESPLoader.FLASH_SECTOR_SIZE - 1) & ~(ESPLoader.FLASH_SECTOR_SIZE - 1)) - 1
+            if sector_start < end:
+                message = 'Detected overlap at address: 0x%x for file: %s' % (address, argfile.name)
+                raise argparse.ArgumentError(self, message)
+            end = sector_end
         setattr(namespace, self.dest, pairs)
 
 

tools/sdk/include/app_update/esp_ota_ops.h

@@ -27,57 +27,76 @@ extern "C"
 {
 #endif
 
-#define OTA_SIZE_UNKNOWN 0xffffffff
+#define OTA_SIZE_UNKNOWN 0xffffffff /*!< Used for esp_ota_begin() if new image size is unknown */
 
-#define ESP_ERR_OTA_BASE                         0x1500                     /*!< base error code for ota_ops api */
+#define ESP_ERR_OTA_BASE                         0x1500                     /*!< Base error code for ota_ops api */
-#define ESP_ERR_OTA_PARTITION_CONFLICT           (ESP_ERR_OTA_BASE + 0x01)  /*!< want to write or erase current running partition */
+#define ESP_ERR_OTA_PARTITION_CONFLICT           (ESP_ERR_OTA_BASE + 0x01)  /*!< Error if request was to write or erase the current running partition */
-#define ESP_ERR_OTA_SELECT_INFO_INVALID          (ESP_ERR_OTA_BASE + 0x02)  /*!< ota data partition info is error */
+#define ESP_ERR_OTA_SELECT_INFO_INVALID          (ESP_ERR_OTA_BASE + 0x02)  /*!< Error if OTA data partition contains invalid content */
-#define ESP_ERR_OTA_VALIDATE_FAILED              (ESP_ERR_OTA_BASE + 0x03)  /*!< validate ota image failed */
+#define ESP_ERR_OTA_VALIDATE_FAILED              (ESP_ERR_OTA_BASE + 0x03)  /*!< Error if OTA app image is invalid */
 
 /**
- * @brief Opaque handle for application update obtained from app_ops.
+ * @brief Opaque handle for an application OTA update
+ *
+ * esp_ota_begin() returns a handle which is then used for subsequent
+ * calls to esp_ota_write() and esp_ota_end().
  */
 typedef uint32_t esp_ota_handle_t;
 
 /**
- * @brief   format input partition in flash to 0xFF as input image size,
+ * @brief   Commence an OTA update writing to the specified partition.
- *          if unkown image size ,pass 0x0 or 0xFFFFFFFF, it will erase all the
- *          partition ,Otherwise, erase the required range
- *
- * @param   partition Pointer to partition structure which need to be updated
- *            Must be non-NULL.
- * @param   image_size size of image need to be updated
- * @param   out_handle handle which should be used for esp_ota_write or esp_ota_end call
 
- * @return: 
+ * The specified partition is erased to the specified image size.
- *    - ESP_OK: if format ota image OK  
+ *
- *    - ESP_ERR_OTA_PARTITION_CONFLICT: operate current running bin  
+ * If image size is not yet known, pass OTA_SIZE_UNKNOWN which will
- *    - ESP_ERR_OTA_SELECT_INFO_INVALID: ota bin select info invalid
+ * cause the entire partition to be erased.
+ *
+ * On success, this function allocates memory that remains in use
+ * until esp_ota_end() is called with the returned handle.
+ *
+ * @param partition Pointer to info for partition which will receive the OTA update. Required.
+ * @param image_size Size of new OTA app image. Partition will be erased in order to receive this size of image. If 0 or OTA_SIZE_UNKNOWN, the entire partition is erased.
+ * @param out_handle On success, returns a handle which should be used for subsequent esp_ota_write() and esp_ota_end() calls.
+
+ * @return
+ *    - ESP_OK: OTA operation commenced successfully.
+ *    - ESP_ERR_INVALID_ARG: partition or out_handle arguments were NULL, or partition doesn't point to an OTA app partition.
+ *    - ESP_ERR_NO_MEM: Cannot allocate memory for OTA operation.
+ *    - ESP_ERR_OTA_PARTITION_CONFLICT: Partition holds the currently running firmware, cannot update in place.
+ *    - ESP_ERR_NOT_FOUND: Partition argument not found in partition table.
+ *    - ESP_ERR_OTA_SELECT_INFO_INVALID: The OTA data partition contains invalid data.
+ *    - ESP_ERR_INVALID_SIZE: Partition doesn't fit in configured flash size.
+ *    - ESP_ERR_FLASH_OP_TIMEOUT or ESP_ERR_FLASH_OP_FAIL: Flash write failed.
  */
 esp_err_t esp_ota_begin(const esp_partition_t* partition, size_t image_size, esp_ota_handle_t* out_handle);
 
 /**
- * @brief   Write data to input input partition
+ * @brief   Write OTA update data to partition
+ *
+ * This function can be called multiple times as
+ * data is received during the OTA operation. Data is written
+ * sequentially to the partition.
  *
  * @param handle  Handle obtained from esp_ota_begin
- * @param   data  Pointer to data write to flash
+ * @param data    Data buffer to write
- * @param   size  data size of recieved data
+ * @param size    Size of data buffer in bytes.
  *
- * @return: 
+ * @return
- *    - ESP_OK: if write flash data OK 
+ *    - ESP_OK: Data was written to flash successfully.
- *    - ESP_ERR_OTA_PARTITION_CONFLICT: operate current running bin  
+ *    - ESP_ERR_INVALID_ARG: handle is invalid.
- *    - ESP_ERR_OTA_SELECT_INFO_INVALID: ota bin select info invalid
+ *    - ESP_ERR_OTA_VALIDATE_FAILED: First byte of image contains invalid app image magic byte.
+ *    - ESP_ERR_FLASH_OP_TIMEOUT or ESP_ERR_FLASH_OP_FAIL: Flash write failed.
+ *    - ESP_ERR_OTA_SELECT_INFO_INVALID: OTA data partition has invalid contents
  */
 esp_err_t esp_ota_write(esp_ota_handle_t handle, const void* data, size_t size);
 
 /**
- * @brief   Finish the update and validate written data
+ * @brief Finish OTA update and validate newly written app image.
  *
- * @param   handle  Handle obtained from esp_ota_begin.
+ * @param handle  Handle obtained from esp_ota_begin().
  *
  * @note After calling esp_ota_end(), the handle is no longer valid and any memory associated with it is freed (regardless of result).
  *
- * @return:
+ * @return
  *    - ESP_OK: Newly written OTA app image is valid.
  *    - ESP_ERR_NOT_FOUND: OTA handle was not found.
  *    - ESP_ERR_INVALID_ARG: Handle was never written to.
@@ -87,27 +106,61 @@ esp_err_t esp_ota_write(esp_ota_handle_t handle, const void* data, size_t size);
 esp_err_t esp_ota_end(esp_ota_handle_t handle);
 
 /**
- * @brief   Set next boot partition, call system_restart() will switch to run it
+ * @brief Configure OTA data for a new boot partition
  *
- * @note    if you want switch to run a bin file 
+ * @note If this function returns ESP_OK, calling esp_restart() will boot the newly configured app partition.
- *          has never been checked before,please validate it's signature firstly
  *
- * @param   partition Pointer to partition structure which need to boot
+ * @param partition Pointer to info for partition containing app image to boot.
  *
- * @return: 
+ * @return
- *    - ESP_OK: if set next boot partition OK
+ *    - ESP_OK: OTA data updated, next reboot will use specified partition.
- *    - ESP_ERR_OTA_SELECT_INFO_INVALID: ota bin select info invalid
+ *    - ESP_ERR_INVALID_ARG: partition argument was NULL or didn't point to a valid OTA partition of type "app".
+ *    - ESP_ERR_OTA_VALIDATE_FAILED: Partition contained invalid app image. Also returned if secure boot is enabled and signature validation failed.
+ *    - ESP_ERR_NOT_FOUND: OTA data partition not found.
+ *    - ESP_ERR_FLASH_OP_TIMEOUT or ESP_ERR_FLASH_OP_FAIL: Flash erase or write failed.
  */
 esp_err_t esp_ota_set_boot_partition(const esp_partition_t* partition);
 
 /**
- * @brief   Get partition info of current running image
+ * @brief Get partition info of currently configured boot app
  *
- * @return  pointer to esp_partition_t structure, or NULL if no partition is found or 
+ * If esp_ota_set_boot_partition() has been called, the partition which was set by that function will be returned.
- *          operate flash failed,This pointer is valid for the lifetime of the application.
+ *
+ * If esp_ota_set_boot_partition() has not been called, the result is
+ * equivalent to esp_ota_get_running_partition().
+ *
+ * @return Pointer to info for partition structure, or NULL if no partition is found or flash read operation failed. Returned pointer is valid for the lifetime of the application.
  */
 const esp_partition_t* esp_ota_get_boot_partition(void);
 
+
+/**
+ * @brief Get partition info of currently running app
+ *
+ * This function is different to esp_ota_get_boot_partition() in that
+ * it ignores any change of selected boot partition caused by
+ * esp_ota_set_boot_partition(). Only the app whose code is currently
+ * running will have its partition information returned.
+ *
+ * @return Pointer to info for partition structure, or NULL if no partition is found or flash read operation failed. Returned pointer is valid for the lifetime of the application.
+ */
+const esp_partition_t* esp_ota_get_running_partition(void);
+
+
+/**
+ * @brief Return the next OTA app partition which should be written with a new firmware.
+ *
+ * Call this function to find an OTA app partition which can be passed to esp_ota_begin().
+ *
+ * Finds next partition round-robin, starting from the current running partition.
+ *
+ * @param start_from If set, treat this partition info as describing the current running partition. Can be NULL, in which case esp_ota_get_running_partition() is used to find the currently running partition. The result of this function is never the same as this argument.
+ *
+ * @return Pointer to info for partition which should be updated next. NULL result indicates invalid OTA data partition, or that no eligible OTA app slot partition was found.
+ *
+ */
+const esp_partition_t* esp_ota_get_next_update_partition(const esp_partition_t *start_from);
+
 #ifdef __cplusplus
 }
 #endif

tools/sdk/include/bluedroid/bta_api.h

@@ -400,6 +400,8 @@ typedef struct {
 
 typedef void (tBTA_SET_ADV_DATA_CMPL_CBACK) (tBTA_STATUS status);
 
+typedef void (tBTA_START_ADV_CMPL_CBACK) (tBTA_STATUS status);
+
 /* advertising channel map */
 #define BTA_BLE_ADV_CHNL_37 BTM_BLE_ADV_CHNL_37
 #define BTA_BLE_ADV_CHNL_38 BTM_BLE_ADV_CHNL_38
@@ -1095,6 +1097,8 @@ typedef void (tBTA_BLE_SCAN_SETUP_CBACK) (tBTA_BLE_BATCH_SCAN_EVT evt,
         tBTA_DM_BLE_REF_VALUE ref_value,
         tBTA_STATUS status);
 
+typedef void (tBTA_START_SCAN_CMPL_CBACK) (tBTA_STATUS status); 
+
 typedef void (tBTA_BLE_TRACK_ADV_CMPL_CBACK)(int action, tBTA_STATUS status,
         tBTA_DM_BLE_PF_AVBL_SPACE avbl_space,
         tBTA_DM_BLE_REF_VALUE ref_value);
@@ -1891,7 +1895,7 @@ extern void BTA_DmSetBleAdvParams (UINT16 adv_int_min, UINT16 adv_int_max,
 extern void BTA_DmSetBleAdvParamsAll (UINT16 adv_int_min, UINT16 adv_int_max,
                                       UINT8 adv_type, tBLE_ADDR_TYPE addr_type_own,
                                       tBTM_BLE_ADV_CHNL_MAP chnl_map, tBTM_BLE_AFP adv_fil_pol,
-                                      tBLE_BD_ADDR *p_dir_bda);
+                                      tBLE_BD_ADDR *p_dir_bda, tBTA_START_ADV_CMPL_CBACK p_start_adv_cb);
 
 
 /*******************************************************************************
@@ -1997,7 +2001,8 @@ extern void BTA_DmSetEncryption(BD_ADDR bd_addr, tBTA_TRANSPORT transport,
 **
 *******************************************************************************/
 extern void BTA_DmBleObserve(BOOLEAN start, UINT8 duration,
-                             tBTA_DM_SEARCH_CBACK *p_results_cb);
+                             tBTA_DM_SEARCH_CBACK *p_results_cb,
+                             tBTA_START_SCAN_CMPL_CBACK *p_start_scan_cb);
 
 extern void BTA_DmBleStopAdvertising(void);
 

tools/sdk/include/bluedroid/esp_gap_ble_api.h

@@ -46,6 +46,8 @@ typedef enum {
     ESP_GAP_BLE_SCAN_RESULT_EVT,                            /*!< When one scan result ready, the event comes each time */
     ESP_GAP_BLE_ADV_DATA_RAW_SET_COMPLETE_EVT,              /*!< When raw advertising data set complete, the event comes */
     ESP_GAP_BLE_SCAN_RSP_DATA_RAW_SET_COMPLETE_EVT,         /*!< When raw advertising data set complete, the event comes */
+    ESP_GAP_BLE_ADV_START_COMPLETE_EVT,                     /*!< When start advertising complete, the event comes */
+    ESP_GAP_BLE_SCAN_START_COMPLETE_EVT,                    /*!< When start scan complete, the event comes */
 } esp_gap_ble_cb_event_t;
 
 /// Advertising data maximum length
@@ -284,6 +286,18 @@ typedef union {
     struct ble_scan_rsp_data_raw_cmpl_evt_param {
         esp_bt_status_t status;                     /*!< Indicate the set raw advertising data operation success status */
     } scan_rsp_data_raw_cmpl;                       /*!< Event parameter of ESP_GAP_BLE_SCAN_RSP_DATA_RAW_SET_COMPLETE_EVT */
+    /**
+     * @brief ESP_GAP_BLE_ADV_START_COMPLETE_EVT
+     */
+    struct ble_adv_start_cmpl_evt_param {
+        esp_bt_status_t status;                     /*!< Indicate advertising start operation success status */
+    } adv_start_cmpl;                               /*!< Event parameter of ESP_GAP_BLE_ADV_START_COMPLETE_EVT */
+    /**
+     * @brief ESP_GAP_BLE_SCAN_START_COMPLETE_EVT
+     */
+    struct ble_scan_start_cmpl_evt_param {
+        esp_bt_status_t status;                     /*!< Indicate scan start operation success status */
+    } scan_start_cmpl;                              /*!< Event parameter of ESP_GAP_BLE_SCAN_START_COMPLETE_EVT */
 } esp_ble_gap_cb_param_t;
 
 /**

tools/sdk/include/bluedroid/thread.h

@@ -20,7 +20,7 @@
 #include "freertos/FreeRTOS.h"
 #include "freertos/queue.h"
 #include "freertos/task.h"
-
+#include "esp_task.h"
 #include "bt_defs.h"
 
 #define portBASE_TYPE int
@@ -43,22 +43,22 @@ enum {
     SIG_BTIF_WORK = 0xff
 };
 
-#define HCI_HOST_TASK_STACK_SIZE	1500
+#define HCI_HOST_TASK_STACK_SIZE        (2048 + BT_TASK_EXTRA_STACK_SIZE)
 #define HCI_HOST_TASK_PRIO              (configMAX_PRIORITIES - 2)
 #define HCI_HOST_TASK_NAME              "hciHostT"
 #define HCI_HOST_QUEUE_NUM              40
 
-#define HCI_H4_TASK_STACK_SIZE		1500
+#define HCI_H4_TASK_STACK_SIZE          (2048 + BT_TASK_EXTRA_STACK_SIZE)
 #define HCI_H4_TASK_PRIO                (configMAX_PRIORITIES - 3)
 #define HCI_H4_TASK_NAME                "hciH4T"
 #define HCI_H4_QUEUE_NUM                60
 
-#define BTU_TASK_STACK_SIZE			4096
+#define BTU_TASK_STACK_SIZE             (3584 + BT_TASK_EXTRA_STACK_SIZE)
 #define BTU_TASK_PRIO                   (configMAX_PRIORITIES - 4)
 #define BTU_TASK_NAME                   "btuT"
 #define BTU_QUEUE_NUM                   50
 
-#define BTC_TASK_STACK_SIZE 		CONFIG_BTC_TASK_STACK_SIZE	//by menuconfig
+#define BTC_TASK_STACK_SIZE             (CONFIG_BTC_TASK_STACK_SIZE + BT_TASK_EXTRA_STACK_SIZE)	//by menuconfig
 #define BTC_TASK_NAME                   "btcT"
 #define BTC_TASK_PRIO                   (configMAX_PRIORITIES - 5)
 #define BTC_TASK_QUEUE_NUM              20

tools/sdk/include/config/sdkconfig.h

@@ -7,7 +7,9 @@
 #define CONFIG_ESP32_PHY_MAX_TX_POWER 20
 #define CONFIG_PHY_ENABLED 1
 #define CONFIG_TRACEMEM_RESERVE_DRAM 0x0
+#define CONFIG_FREERTOS_MAX_TASK_NAME_LEN 16
 #define CONFIG_FREERTOS_CHECK_STACKOVERFLOW_NONE 1
+#define CONFIG_FOUR_MAC_ADDRESS_FROM_EFUSE 1
 #define CONFIG_ESPTOOLPY_FLASHSIZE_4MB 1
 #define CONFIG_ESPTOOLPY_FLASHFREQ "80m"
 #define CONFIG_NEWLIB_STDOUT_ADDCR 1
@@ -18,6 +20,7 @@
 #define CONFIG_INT_WDT 1
 #define CONFIG_ARDUHAL_LOG_DEFAULT_LEVEL 1
 #define CONFIG_FREERTOS_THREAD_LOCAL_STORAGE_POINTERS 1
+#define CONFIG_ESP32_WIFI_STATIC_RX_BUFFER_NUM 10
 #define CONFIG_BT_RESERVE_DRAM 0x10000
 #define CONFIG_LOG_BOOTLOADER_LEVEL_ERROR 1
 #define CONFIG_CONSOLE_UART_BAUDRATE 115200
@@ -28,6 +31,7 @@
 #define CONFIG_INT_WDT_CHECK_CPU1 1
 #define CONFIG_ESPTOOLPY_AFTER_RESET 1
 #define CONFIG_TOOLPREFIX "xtensa-esp32-elf-"
+#define CONFIG_ESP32_WIFI_AMPDU_ENABLED 1
 #define CONFIG_CONSOLE_UART_NUM 0
 #define CONFIG_ESP32_RTC_CLOCK_SOURCE_INTERNAL_RC 1
 #define CONFIG_LWIP_THREAD_LOCAL_STORAGE_INDEX 0
@@ -46,10 +50,11 @@
 #define CONFIG_BTC_TASK_STACK_SIZE 2048
 #define CONFIG_ESPTOOLPY_BEFORE "default_reset"
 #define CONFIG_LOG_DEFAULT_LEVEL 1
+#define CONFIG_ESP32_WIFI_DYNAMIC_RX_BUFFER_NUM 0
 #define CONFIG_ESP32_PHY_MAX_WIFI_TX_POWER 20
+#define CONFIG_ESP32_WIFI_NVS_ENABLED 1
 #define CONFIG_ULP_COPROC_ENABLED 1
 #define CONFIG_DMA_RX_BUF_NUM 10
-#define CONFIG_ESPTOOLPY_FLASHMODE_DIO 1
 #define CONFIG_TCP_SYNMAXRTX 6
 #define CONFIG_PYTHON "python"
 #define CONFIG_ESP32_TIME_SYSCALL_USE_RTC_FRC1 1
@@ -57,12 +62,15 @@
 #define CONFIG_PARTITION_TABLE_FILENAME "partitions_singleapp.csv"
 #define CONFIG_LWIP_DHCP_MAX_NTP_SERVERS 1
 #define CONFIG_PARTITION_TABLE_SINGLE_APP 1
+#define CONFIG_NUMBER_OF_MAC_ADDRESS_GENERATED_FROM_EFUSE 4
 #define CONFIG_WIFI_ENABLED 1
+#define CONFIG_FLASHMODE_QIO 1
 #define CONFIG_ESPTOOLPY_FLASHFREQ_80M 1
 #define CONFIG_SYSTEM_EVENT_TASK_STACK_SIZE 2048
 #define CONFIG_ESP32_DEEP_SLEEP_WAKEUP_DELAY 0
 #define CONFIG_PHY_DATA_OFFSET 0xf000
 #define CONFIG_PARTITION_TABLE_CUSTOM_APP_BIN_OFFSET 0x10000
+#define CONFIG_ESP32_WIFI_DYNAMIC_TX_BUFFER_NUM 32
 #define CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ 240
 #define CONFIG_MBEDTLS_HARDWARE_AES 1
 #define CONFIG_FREERTOS_HZ 1000
@@ -88,7 +96,6 @@
 #define CONFIG_OPENSSL_ASSERT_DO_NOTHING 1
 #define CONFIG_OPTIMIZATION_LEVEL_DEBUG 1
 #define CONFIG_SYSTEM_EVENT_QUEUE_SIZE 32
-#define CONFIG_ESP32_WIFI_RX_BUFFER_NUM 25
 #define CONFIG_ESPTOOLPY_BAUD_921600B 1
 #define CONFIG_APP_OFFSET 0x10000
 #define CONFIG_MEMMAP_SMP 1

tools/sdk/include/driver/driver/sdmmc_host.h

@@ -50,10 +50,12 @@ extern "C" {
 typedef struct {
     gpio_num_t gpio_cd;     ///< GPIO number of card detect signal
     gpio_num_t gpio_wp;     ///< GPIO number of write protect signal
+    uint8_t width;          ///< Bus width used by the slot (might be less than the max width supported)
 } sdmmc_slot_config_t;
 
 #define SDMMC_SLOT_NO_CD      ((gpio_num_t) -1)     ///< indicates that card detect line is not used
 #define SDMMC_SLOT_NO_WP      ((gpio_num_t) -1)     ///< indicates that write protect line is not used
+#define SDMMC_SLOT_WIDTH_DEFAULT 0 ///< use the default width for the slot (8 for slot 0, 4 for slot 1)
 
 /**
  * Macro defining default configuration of SDMMC host slot
@@ -61,6 +63,7 @@ typedef struct {
 #define SDMMC_SLOT_CONFIG_DEFAULT() {\
     .gpio_cd = SDMMC_SLOT_NO_CD, \
     .gpio_wp = SDMMC_SLOT_NO_WP, \
+    .width   = SDMMC_SLOT_WIDTH_DEFAULT, \
 }
 
 /**

tools/sdk/include/driver/driver/uart.h

@@ -478,7 +478,8 @@ esp_err_t uart_intr_config(uart_port_t uart_num, const uart_intr_config_t *intr_
  * @param uart_queue UART event queue handle (out param). On success, a new queue handle is written here to provide
  *        access to UART events. If set to NULL, driver will not use an event queue.
  * @param  intr_alloc_flags Flags used to allocate the interrupt. One or multiple (ORred)
- *            ESP_INTR_FLAG_* values. See esp_intr_alloc.h for more info.
+ *            ESP_INTR_FLAG_* values. See esp_intr_alloc.h for more info. Do not set ESP_INTR_FLAG_IRAM here
+ *            (the driver's ISR handler is not located in IRAM)
  *
  * @return
  *     - ESP_OK   Success

tools/sdk/include/esp32/esp_deep_sleep.h

@@ -17,6 +17,7 @@
 #include <stdint.h>
 #include "esp_err.h"
 #include "driver/gpio.h"
+#include "driver/touch_pad.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -50,12 +51,28 @@ typedef enum {
     ESP_PD_OPTION_AUTO      //!< Keep power domain enabled in deep sleep, if it is needed by one of the wakeup options. Otherwise power it down.
 } esp_deep_sleep_pd_option_t;
 
+/**
+ * @brief Deep sleep wakeup cause
+ */
+typedef enum {
+    ESP_DEEP_SLEEP_WAKEUP_UNDEFINED,    //! Wakeup was not caused by deep sleep
+    ESP_DEEP_SLEEP_WAKEUP_EXT0,         //! Wakeup caused by external signal using RTC_IO
+    ESP_DEEP_SLEEP_WAKEUP_EXT1,         //! Wakeup caused by external signal using RTC_CNTL
+    ESP_DEEP_SLEEP_WAKEUP_TIMER,        //! Wakeup caused by timer
+    ESP_DEEP_SLEEP_WAKEUP_TOUCHPAD,     //! Wakeup caused by touchpad
+    ESP_DEEP_SLEEP_WAKEUP_ULP,          //! Wakeup caused by ULP program
+} esp_deep_sleep_wakeup_cause_t;
+
 
 /**
  * @brief Enable wakeup by ULP coprocessor
+ * @note In revisions 0 and 1 of the ESP32, ULP wakeup source
+ *       can not be used when RTC_PERIPH power domain is forced
+ *       to be powered on (ESP_PD_OPTION_ON) or when ext0 wakeup
+ *       source is used.
  * @return
  *      - ESP_OK on success
- *      - ESP_ERR_INVALID_STATE if ULP co-processor is not enabled.
+ *      - ESP_ERR_INVALID_STATE if ULP co-processor is not enabled or if wakeup triggers conflict
  */
 esp_err_t esp_deep_sleep_enable_ulp_wakeup();
 
@@ -68,6 +85,29 @@ esp_err_t esp_deep_sleep_enable_ulp_wakeup();
  */
 esp_err_t esp_deep_sleep_enable_timer_wakeup(uint64_t time_in_us);
 
+/**
+ * @brief Enable wakeup by touch sensor
+ *
+ * @note In revisions 0 and 1 of the ESP32, touch wakeup source
+ *       can not be used when RTC_PERIPH power domain is forced
+ *       to be powered on (ESP_PD_OPTION_ON) or when ext0 wakeup
+ *       source is used.
+ *
+ * @return
+ *      - ESP_OK on success
+ *      - ESP_ERR_INVALID_STATE if wakeup triggers conflict
+ */
+esp_err_t esp_deep_sleep_enable_touchpad_wakeup();
+
+/**
+ * @brief Get the touch pad which caused wakeup
+ *
+ * If wakeup was caused by another source, this function will return TOUCH_PAD_MAX;
+ *
+ * @return touch pad which caused wakeup
+ */
+touch_pad_t esp_deep_sleep_get_touchpad_wakeup_status();
+
 /**
  * @brief Enable wakeup using a pin
  *
@@ -81,6 +121,9 @@ esp_err_t esp_deep_sleep_enable_timer_wakeup(uint64_t time_in_us);
  *       configured in esp_deep_sleep_start, immediately before
  *       entering deep sleep.
  *
+ * @note In revisions 0 and 1 of the ESP32, ext0 wakeup source
+ *       can not be used together with touch or ULP wakeup sources.
+ *
  * @param gpio_num  GPIO number used as wakeup source. Only GPIOs which are have RTC
  *             functionality can be used: 0,2,4,12-15,25-27,32-39.
  * @param level  input level which will trigger wakeup (0=low, 1=high)
@@ -88,6 +131,7 @@ esp_err_t esp_deep_sleep_enable_timer_wakeup(uint64_t time_in_us);
  *      - ESP_OK on success
  *      - ESP_ERR_INVALID_ARG if the selected GPIO is not an RTC GPIO,
  *        or the mode is invalid
+ *      - ESP_ERR_INVALID_STATE if wakeup triggers conflict
  */
 esp_err_t esp_deep_sleep_enable_ext0_wakeup(gpio_num_t gpio_num, int level);
 
@@ -188,6 +232,15 @@ void esp_deep_sleep(uint64_t time_in_us) __attribute__((noreturn));
  */
 void system_deep_sleep(uint64_t time_in_us) __attribute__((noreturn, deprecated));
 
+
+/**
+ * @brief Get the source which caused deep sleep wakeup
+ *
+ * @return wakeup cause, or ESP_DEEP_SLEEP_WAKEUP_UNDEFINED if reset reason is other than deep sleep reset.
+ */
+esp_deep_sleep_wakeup_cause_t esp_deep_sleep_get_wakeup_cause();
+
+
 /**
  * @brief Default stub to run on wake from deep sleep.
  *

tools/sdk/include/esp32/esp_err.h

@@ -11,10 +11,10 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
-#ifndef __ESP_ERR_H__
+#pragma once
-#define __ESP_ERR_H__
 
 #include <stdint.h>
+#include <stdio.h>
 #include <assert.h>
 
 #ifdef __cplusplus
@@ -40,15 +40,38 @@ typedef int32_t esp_err_t;
 
 #define ESP_ERR_WIFI_BASE       0x3000 /*!< Starting number of WiFi error codes */
 
+void _esp_error_check_failed(esp_err_t rc, const char *file, int line, const char *function, const char *expression) __attribute__((noreturn));
+
+#ifndef __ASSERT_FUNC
+/* This won't happen on IDF, which defines __ASSERT_FUNC in assert.h, but it does happen when building on the host which
+   uses /usr/include/assert.h or equivalent.
+*/
+#ifdef __ASSERT_FUNCTION
+#define __ASSERT_FUNC __ASSERT_FUNCTION /* used in glibc assert.h */
+#else
+#define __ASSERT_FUNC "??"
+#endif
+#endif
+
 /**
  * Macro which can be used to check the error code,
  * and terminate the program in case the code is not ESP_OK.
- * Prints the failed statement to serial output.
+ * Prints the error code, error location, and the failed statement to serial output.
+ *
+ * Disabled if assertions are disabled.
  */
-#define ESP_ERROR_CHECK(x)   do { esp_err_t rc = (x); if (rc != ESP_OK) { assert(0 && #x);} } while(0);
+#ifdef NDEBUG
+#define ESP_ERROR_CHECK(x) do { (x); } while (0)
+#else
+#define ESP_ERROR_CHECK(x) do {                                         \
+        esp_err_t rc = (x);                                             \
+        if (rc != ESP_OK) {                                             \
+            _esp_error_check_failed(rc, __FILE__, __LINE__,             \
+                                    __ASSERT_FUNC, #x);                 \
+        }                                                               \
+    } while(0);
+#endif
 
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __ESP_ERR_H__ */

tools/sdk/include/esp32/esp_system.h

@@ -24,6 +24,17 @@
 extern "C" {
 #endif
 
+typedef enum {
+    ESP_MAC_WIFI_STA,
+    ESP_MAC_WIFI_SOFTAP,
+    ESP_MAC_BT,
+    ESP_MAC_ETH,
+} esp_mac_type_t;
+
+#define TWO_MAC_ADDRESS_FROM_EFUSE 2
+#define FOUR_MAC_ADDRESS_FROM_EFUSE 4
+#define NUM_MAC_ADDRESS_FROM_EFUSE CONFIG_NUMBER_OF_MAC_ADDRESS_GENERATED_FROM_EFUSE
+
 /**
   * @attention  application don't need to call this function anymore. It do nothing and will
   *             be removed in future version.
@@ -115,6 +126,47 @@ esp_err_t esp_efuse_read_mac(uint8_t* mac);
   */
 esp_err_t system_efuse_read_mac(uint8_t mac[6]) __attribute__ ((deprecated));
 
+/**
+  * @brief  Read hardware MAC address and set MAC address of the interface.
+  *
+  * This function first reads hardware MAC address from efuse. Then set the MAC address of the interface
+  * including wifi station, wifi softap, bluetooth and ethernet.
+  *
+  * @param  mac  MAC address of the interface, length: 6 bytes.
+  * @param  type  type of MAC address, 0:wifi station, 1:wifi softap, 2:bluetooth, 3:ethernet.
+  *
+  * @return ESP_OK on success
+  */
+esp_err_t esp_read_mac(uint8_t* mac, esp_mac_type_t type);
+
+/**
+  * @brief  Derive MAC address.
+  *
+  * This function derives a local MAC address from an universal MAC address.
+  * Addresses can either be universally administered addresses or locally administered addresses.
+  * A universally administered address is uniquely assigned to a device by its manufacturer.
+  * The first three octets (in transmission order) identify the organization that issued the identifier
+  * and are known as the Organizationally Unique Identifier (OUI).[4] The remainder of the address
+  * (three octets for MAC-48 and EUI-48 or five for EUI-64) are assigned by that organization in nearly
+  * any manner they please, subject to the constraint of uniqueness. A locally administered address is
+  * assigned to a device by a network administrator, overriding the burned-in address.
+  * Universally administered and locally administered addresses are distinguished by setting
+  * the second-least-significant bit of the first octet of the address. This bit is also referred to
+  * as the U/L bit, short for Universal/Local, which identifies how the address is administered.
+  * If the bit is 0, the address is universally administered. If it is 1, the address is locally administered.
+  * In the example address 06-00-00-00-00-00 the first octet is 06 (hex), the binary form of which is 00000110,
+  * where the second-least-significant bit is 1. Therefore, it is a locally administered address.[7] Consequently,
+  * this bit is 0 in all OUIs.
+  * In ESP32, universal MAC address is generated from the hardware MAC address in efuse.
+  * Local MAC address is derived from the universal MAC address.
+  *
+  * @param  dst_mac  Derived local MAC address, length: 6 bytes.
+  * @param  src_mac  Source universal MAC address, length: 6 bytes.
+  *
+  * @return ESP_OK on success
+  */
+esp_err_t esp_derive_mac(uint8_t* dst_mac, const uint8_t* src_mac);
+
 /**
  * Get SDK version
  *

tools/sdk/include/esp32/esp_task.h

@@ -31,22 +31,16 @@
 #define ESP_TASK_PRIO_MAX (configMAX_PRIORITIES)
 #define ESP_TASK_PRIO_MIN (0)
 
-/* Wifi library task */
-#define ESP_TASKD_WATCHDOG_PRIO       (ESP_TASK_PRIO_MAX - 1)
-#define ESP_TASKD_WATCHDOG_STACK      2048
-#define ESP_TASK_WPA2_PRIO            (ESP_TASK_PRIO_MAX - 1)
-#define ESP_TASK_WPA2_STACK           2048
-#define ESP_TASKD_WIFI_PRIO           (ESP_TASK_PRIO_MAX - 2)
-#define ESP_TASKD_WIFI_STACK          8196
-#define ESP_TASKD_WIFI_TIMER_PRIO     (ESP_TASK_PRIO_MAX - 3)
-#define ESP_TASKD_WIFI_TIMER_STACK    2048
-#define ESP_TASK_WPS_PRIO             (ESP_TASK_PRIO_MIN + 2)
-#define ESP_TASK_WPS_STACK            2048
-
 /* Bt contoller Task */
 /* controller */
 #define ESP_TASK_BT_CONTROLLER_PRIO   (ESP_TASK_PRIO_MAX - 1)
-#define ESP_TASK_BT_CONTROLLER_STACK  4096
+#ifdef CONFIG_NEWLIB_NANO_FORMAT
+#define BT_TASK_EXTRA_STACK_SIZE      (0)
+#else
+#define BT_TASK_EXTRA_STACK_SIZE      (512)
+#endif
+#define ESP_TASK_BT_CONTROLLER_STACK  (3584 + BT_TASK_EXTRA_STACK_SIZE)
+
 
 /* idf task */
 #define ESP_TASKD_EVENT_PRIO          (ESP_TASK_PRIO_MAX - 5)

tools/sdk/include/esp32/esp_wifi.h

@@ -95,13 +95,44 @@ extern "C" {
  */
 typedef struct {
     system_event_handler_t event_handler;          /**< WiFi event handler */
-    uint32_t rx_buf_num;  /**< WiFi RX buffer number */
+    int                    static_rx_buf_num;      /**< WiFi static RX buffer number */
+    int                    dynamic_rx_buf_num;     /**< WiFi dynamic RX buffer number */
+    int                    dynamic_tx_buf_num;     /**< WiFi dynamic TX buffer number */
+    int                    ampdu_enable;           /**< WiFi AMPDU feature enable flag */
+    int                    nvs_enable;             /**< WiFi NVS flash enable flag */
+    int                    nano_enable;            /**< Nano option for printf/scan family enable flag */
+    int                    magic;                  /**< WiFi init magic number, it should be the last field */
 } wifi_init_config_t;
 
+#if CONFIG_ESP32_WIFI_AMPDU_ENABLED
+#define WIFI_AMPDU_ENABLED        1
+#else
+#define WIFI_AMPDU_ENABLED        0
+#endif
+
+#if CONFIG_ESP32_WIFI_NVS_ENABLED
+#define WIFI_NVS_ENABLED          1
+#else
+#define WIFI_NVS_ENABLED          0
+#endif
+
+#if CONFIG_NEWLIB_NANO_FORMAT
+#define WIFI_NANO_FORMAT_ENABLED  1
+#else
+#define WIFI_NANO_FORMAT_ENABLED  0
+#endif
+ 
+#define WIFI_INIT_CONFIG_MAGIC    0x1F2F3F4F
 #ifdef CONFIG_WIFI_ENABLED
 #define WIFI_INIT_CONFIG_DEFAULT() { \
     .event_handler = &esp_event_send, \
-    .rx_buf_num = CONFIG_ESP32_WIFI_RX_BUFFER_NUM, \
+    .static_rx_buf_num = CONFIG_ESP32_WIFI_STATIC_RX_BUFFER_NUM,\
+    .dynamic_rx_buf_num = CONFIG_ESP32_WIFI_DYNAMIC_RX_BUFFER_NUM,\
+    .dynamic_tx_buf_num = CONFIG_ESP32_WIFI_DYNAMIC_TX_BUFFER_NUM,\
+    .ampdu_enable = WIFI_AMPDU_ENABLED,\
+    .nvs_enable = WIFI_NVS_ENABLED,\
+    .nano_enable = WIFI_NANO_FORMAT_ENABLED,\
+    .magic = WIFI_INIT_CONFIG_MAGIC\
 };
 #else
 #define WIFI_INIT_CONFIG_DEFAULT #error Wifi is disabled in config, WIFI_INIT_CONFIG_DEFAULT will not work
@@ -113,8 +144,11 @@ typedef struct {
   *         WiFi NVS structure etc, this WiFi also start WiFi task
   *
   * @attention 1. This API must be called before all other WiFi API can be called
-  * @attention 2. event_handler field in cfg should be set to a valid event handler function.
+  * @attention 2. Always use WIFI_INIT_CONFIG_DEFAULT macro to init the config to default values, this can
-  *            In most cases, use the WIFI_INIT_CONFIG_DEFAULT macro which sets esp_event_send().
+  *               guarantee all the fields got correct value when more fields are added into wifi_init_config_t
+  *               in future release. If you want to set your owner initial values, overwrite the default values
+  *               which are set by WIFI_INIT_CONFIG_DEFAULT, please be notified that the field 'magic' of 
+  *               wifi_init_config_t should always be WIFI_INIT_CONFIG_MAGIC!
   *
   * @param  config provide WiFi init configuration
   *
@@ -422,6 +456,7 @@ esp_err_t esp_wifi_get_bandwidth(wifi_interface_t ifx, wifi_bandwidth_t *bw);
   * @brief     Set primary/secondary channel of ESP32
   *
   * @attention 1. This is a special API for sniffer
+  * @attention 2. This API should be called after esp_wifi_start() or esp_wifi_set_promiscuous()
   *
   * @param     primary  for HT20, primary is the channel number, for HT40, primary is the primary channel
   * @param     second   for HT20, second is ignored, for HT40, second is the second channel

tools/sdk/include/esp32/rom/spi_flash.h

@@ -504,12 +504,25 @@ void SPI_Write_Encrypt_Disable(void);
   * @param  uint32_t len : Length to write, should be 32 bytes aligned.
   *
   * @return SPI_FLASH_RESULT_OK : Data written successfully.
-  *         SPI_FLASH_RESULT_ERR : Encrypto write error.
+  *         SPI_FLASH_RESULT_ERR : Encryption write error.
   *         SPI_FLASH_RESULT_TIMEOUT : Encrypto write timeout.
   */
 SpiFlashOpResult SPI_Encrypt_Write(uint32_t flash_addr, uint32_t *data, uint32_t len);
 
 
+/** @brief Wait until SPI flash write operation is complete
+ *
+ * @note Please do not call this function in SDK.
+ *
+ * Reads the Write In Progress bit of the SPI flash status register,
+ * repeats until this bit is zero (indicating write complete).
+ *
+ * @return SPI_FLASH_RESULT_OK : Write is complete
+ *         SPI_FLASH_RESULT_ERR : Error while reading status.
+ */
+SpiFlashOpResult SPI_Wait_Idle(SpiFlashChip *spi);
+
+
 /** @brief Global SpiFlashChip structure used by ROM functions
  *
  */

tools/sdk/include/esp32/soc/cpu.h

@@ -36,16 +36,6 @@ static inline void *get_sp()
     return sp;
 }
 
-/* Return true if the CPU is in an interrupt context
-   (PS.UM == 0)
-*/
-static inline bool cpu_in_interrupt_context(void)
-{
-    uint32_t ps;
-    RSR(PS, ps);
-    return (ps & PS_UM) == 0;
-}
-
 /* Functions to set page attributes for Region Protection option in the CPU.
  * See Xtensa ISA Reference manual for explanation of arguments (section 4.6.3.2).
  */

tools/sdk/include/esp32/soc/dport_reg.h

@@ -1035,11 +1035,27 @@
 #define DPORT_WIFI_CLK_EN_V  0xFFFFFFFF
 #define DPORT_WIFI_CLK_EN_S  0
 
+/* Mask for all Wifi clock bits - 0, 1, 2, 3, 6, 7, 8, 9, 10, 15 */
+#define DPORT_WIFI_CLK_WIFI_EN  0x000007cf
+#define DPORT_WIFI_CLK_WIFI_EN_M  ((DPORT_WIFI_CLK_WIFI_EN_V)<<(DPORT_WIFI_CLK_WIFI_EN_S))
+#define DPORT_WIFI_CLK_WIFI_EN_V  0x1FF
+#define DPORT_WIFI_CLK_WIFI_EN_S  0
+/* Mask for all Bluetooth clock bits - 11, 16, 17 */
+#define DPORT_WIFI_CLK_BT_EN  0x61
+#define DPORT_WIFI_CLK_BT_EN_M  ((DPORT_WIFI_CLK_BT_EN_V)<<(DPORT_WIFI_CLK_BT_EN_S))
+#define DPORT_WIFI_CLK_BT_EN_V  0x61
+#define DPORT_WIFI_CLK_BT_EN_S  11
+/* Remaining single bit clock masks */
+#define DPORT_WIFI_CLK_SDIOSLAVE_EN  BIT(4)
+#define DPORT_WIFI_CLK_SDIO_HOST_EN  BIT(13)
+#define DPORT_WIFI_CLK_EMAC_EN  BIT(14)
+#define DPORT_WIFI_CLK_RNG_EN  BIT(15)
+
 #define DPORT_CORE_RST_EN_REG          (DR_REG_DPORT_BASE + 0x0D0)
 /* DPORT_CORE_RST : R/W ;bitpos:[31:0] ;default: 32'h0 ; */
 /*description: */
-#define DPROT_RW_BTLP_RST (BIT(10))
+#define DPORT_RW_BTLP_RST (BIT(10))
-#define DPROT_RW_BTMAC_RST (BIT(9))
+#define DPORT_RW_BTMAC_RST (BIT(9))
 #define DPORT_MACPWR_RST (BIT(8))
 #define DPORT_EMAC_RST (BIT(7))
 #define DPORT_SDIO_HOST_RST (BIT(6))

tools/sdk/include/esp32/soc/io_mux_reg.h

@@ -88,7 +88,7 @@ static inline void __attribute__ ((deprecated)) PIN_PULLDWN_EN(uint32_t PIN_NAME
 #define FUNC_GPIO0_GPIO0_0                          0
 
 #define PERIPHS_IO_MUX_U0TXD_U            (DR_REG_IO_MUX_BASE +0x88)
-#define FUNC_U0TXD_EMAC_RXD2                        3
+#define FUNC_U0TXD_EMAC_RXD2                        5
 #define FUNC_U0TXD_GPIO1                            2
 #define FUNC_U0TXD_CLK_OUT3                         1
 #define FUNC_U0TXD_U0TXD                            0
@@ -181,7 +181,7 @@ static inline void __attribute__ ((deprecated)) PIN_PULLDWN_EN(uint32_t PIN_NAME
 #define PERIPHS_IO_MUX_MTMS_U             (DR_REG_IO_MUX_BASE +0x30)
 #define FUNC_MTMS_EMAC_TXD2                         5
 #define FUNC_MTMS_SD_CLK                            4
-#define FUNC_MTMS_HS2_CLk                           3
+#define FUNC_MTMS_HS2_CLK                           3
 #define FUNC_MTMS_GPIO14                            2
 #define FUNC_MTMS_HSPICLK                           1
 #define FUNC_MTMS_MTMS                              0

tools/sdk/include/esp32/soc/rtc_cntl_reg.h

@@ -240,7 +240,7 @@
 #define RTC_CNTL_TIME_VALID_S  30
 
 /* frequency of RTC slow clock, Hz */
-#define RTC_CTNL_SLOWCLK_FREQ   150000
+#define RTC_CNTL_SLOWCLK_FREQ   150000
 
 #define RTC_CNTL_TIME0_REG          (DR_REG_RTCCNTL_BASE + 0x10)
 /* RTC_CNTL_TIME_LO : RO ;bitpos:[31:0] ;default: 32'h0 ; */

tools/sdk/include/freertos/freertos/FreeRTOSConfig.h

@@ -187,7 +187,7 @@
 #define configAPPLICATION_ALLOCATED_HEAP 1
 #define configTOTAL_HEAP_SIZE			(&_heap_end - &_heap_start)//( ( size_t ) (64 * 1024) )
 
-#define configMAX_TASK_NAME_LEN			( 16 )
+#define configMAX_TASK_NAME_LEN			( CONFIG_FREERTOS_MAX_TASK_NAME_LEN )
 #define configUSE_TRACE_FACILITY		0		/* Used by vTaskList in main.c */
 #define configUSE_STATS_FORMATTING_FUNCTIONS	0	/* Used by vTaskList in main.c */
 #define configUSE_TRACE_FACILITY_2      0		/* Provided by Xtensa port patch */

tools/sdk/include/freertos/freertos/portable.h

@@ -194,6 +194,12 @@ void vPortYieldOtherCore( BaseType_t coreid) PRIVILEGED_FUNCTION;
  */
 void vPortSetStackWatchpoint( void* pxStackStart );
 
+/*
+ * Returns true if the current core is in ISR context; low prio ISR, med prio ISR or timer tick ISR. High prio ISRs
+ * aren't detected here, but they normally cannot call C code, so that should not be an issue anyway.
+ */
+BaseType_t xPortInIsrContext();
+
 /*
  * The structures and methods of manipulating the MPU are contained within the
  * port layer.

tools/sdk/include/lwip/lwip/dhcp.h

@@ -45,7 +45,7 @@ extern "C" {
 #endif
 
 /** period (in seconds) of the application calling dhcp_coarse_tmr() */
-#define DHCP_COARSE_TIMER_SECS 60
+#define DHCP_COARSE_TIMER_SECS 1
 /** period (in milliseconds) of the application calling dhcp_coarse_tmr() */
 #define DHCP_COARSE_TIMER_MSECS (DHCP_COARSE_TIMER_SECS * 1000UL)
 /** period (in milliseconds) of the application calling dhcp_fine_tmr() */
@@ -76,12 +76,12 @@ struct dhcp
   struct dhcp_msg *msg_out; /* outgoing msg */
   u16_t options_out_len; /* outgoing msg options length */
   u16_t request_timeout; /* #ticks with period DHCP_FINE_TIMER_SECS for request timeout */
-  u16_t t1_timeout;  /* #ticks with period DHCP_COARSE_TIMER_SECS for renewal time */
+  u32_t t1_timeout;  /* #ticks with period DHCP_COARSE_TIMER_SECS for renewal time */
-  u16_t t2_timeout;  /* #ticks with period DHCP_COARSE_TIMER_SECS for rebind time */
+  u32_t t2_timeout;  /* #ticks with period DHCP_COARSE_TIMER_SECS for rebind time */
-  u16_t t1_renew_time;  /* #ticks with period DHCP_COARSE_TIMER_SECS until next renew try */
+  u32_t t1_renew_time;  /* #ticks with period DHCP_COARSE_TIMER_SECS until next renew try */
-  u16_t t2_rebind_time; /* #ticks with period DHCP_COARSE_TIMER_SECS until next rebind try */
+  u32_t t2_rebind_time; /* #ticks with period DHCP_COARSE_TIMER_SECS until next rebind try */
-  u16_t lease_used; /* #ticks with period DHCP_COARSE_TIMER_SECS since last received DHCP ack */
+  u32_t lease_used; /* #ticks with period DHCP_COARSE_TIMER_SECS since last received DHCP ack */
-  u16_t t0_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for lease time */
+  u32_t t0_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for lease time */
   ip_addr_t server_ip_addr; /* dhcp server address that offered this lease (ip_addr_t because passed to UDP) */
   ip4_addr_t offered_ip_addr;
   ip4_addr_t offered_sn_mask;

tools/sdk/include/lwip/lwip/netif.h

@@ -330,6 +330,10 @@ struct netif {
   u16_t loop_cnt_current;
 #endif /* LWIP_LOOPBACK_MAX_PBUFS */
 #endif /* ENABLE_LOOPBACK */
+
+#if ESP_LWIP
+  void (*l2_buffer_free_notify)(void *user_buf); /* Allows LWIP to notify driver when a L2-supplied pbuf can be freed */
+#endif
 };
 
 #if LWIP_CHECKSUM_CTRL_PER_NETIF

tools/sdk/include/lwip/lwip/pbuf.h

@@ -105,12 +105,6 @@ typedef enum {
 /** indicates this pbuf includes a TCP FIN flag */
 #define PBUF_FLAG_TCP_FIN   0x20U
 
-#if ESP_LWIP
-#define PBUF_USER_FLAG_OWNER_NULL   0
-#define PBUF_USER_FLAG_OWNER_WIFI   1
-#define PBUF_USER_FLAG_OWNER_ETH    2
-#endif
-
 struct pbuf {
   /** next pbuf in singly linked pbuf chain */
   struct pbuf *next;
@@ -144,8 +138,8 @@ struct pbuf {
   u16_t ref;
 
 #if ESP_LWIP
-  void  *user_buf;
+  struct netif *l2_owner;
-  u8_t user_flag;
+  void *l2_buf;
 #endif
 };
 

tools/sdk/include/lwip/lwipopts.h

@@ -602,6 +602,7 @@
 #define ESP_LIGHT_SLEEP                 1
 #define ESP_L2_TO_L3_COPY               CONFIG_L2_TO_L3_COPY
 #define ESP_CNT_DEBUG                   0
+#define ESP_DHCP_TIMER                  1
 
 #define TCP_WND_DEFAULT                 (4*TCP_MSS)
 #define TCP_SND_BUF_DEFAULT             (2*TCP_MSS)

tools/sdk/include/lwip/port/lwipopts.h

@@ -602,6 +602,7 @@
 #define ESP_LIGHT_SLEEP                 1
 #define ESP_L2_TO_L3_COPY               CONFIG_L2_TO_L3_COPY
 #define ESP_CNT_DEBUG                   0
+#define ESP_DHCP_TIMER                  1
 
 #define TCP_WND_DEFAULT                 (4*TCP_MSS)
 #define TCP_SND_BUF_DEFAULT             (2*TCP_MSS)

tools/sdk/include/mbedtls/mbedtls/ssl.h

@@ -29,6 +29,7 @@
 #include MBEDTLS_CONFIG_FILE
 #endif
 
+#include "platform.h"
 #include "bignum.h"
 #include "ecp.h"
 

tools/sdk/include/spi_flash/esp_partition.h

@@ -63,7 +63,7 @@ typedef enum {
     ESP_PARTITION_SUBTYPE_APP_OTA_13 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 13,//!< OTA partition 13
     ESP_PARTITION_SUBTYPE_APP_OTA_14 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 14,//!< OTA partition 14
     ESP_PARTITION_SUBTYPE_APP_OTA_15 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 15,//!< OTA partition 15
-    ESP_PARTITION_SUBTYPE_APP_OTA_MAX = 15,                                   //!< Max subtype of OTA partition
+    ESP_PARTITION_SUBTYPE_APP_OTA_MAX = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 16,//!< Max subtype of OTA partition
     ESP_PARTITION_SUBTYPE_APP_TEST = 0x20,                                    //!< Test application partition
 
     ESP_PARTITION_SUBTYPE_DATA_OTA = 0x00,                                    //!< OTA selection partition
@@ -165,6 +165,26 @@ esp_partition_iterator_t esp_partition_next(esp_partition_iterator_t iterator);
  */
 void esp_partition_iterator_release(esp_partition_iterator_t iterator);
 
+/**
+ * @brief Verify partition data
+ *
+ * Given a pointer to partition data, verify this partition exists in the partition table (all fields match.)
+ *
+ * This function is also useful to take partition data which may be in a RAM buffer and convert it to a pointer to the
+ * permanent partition data stored in flash.
+ *
+ * Pointers returned from this function can be compared directly to the address of any pointer returned from
+ * esp_partition_get(), as a test for equality.
+ *
+ * @param partition Pointer to partition data to verify. Must be non-NULL. All fields of this structure must match the
+ * partition table entry in flash for this function to return a successful match.
+ *
+ * @return
+ * - If partition not found, returns NULL.
+ * - If found, returns a pointer to the esp_partition_t structure in flash. This pointer is always valid for the lifetime of the application.
+ */
+const esp_partition_t *esp_partition_verify(const esp_partition_t *partition);
+
 /**
  * @brief Read data from the partition
  *

tools/sdk/include/spi_flash/esp_spi_flash.h

@@ -197,6 +197,48 @@ void spi_flash_munmap(spi_flash_mmap_handle_t handle);
  */
 void spi_flash_mmap_dump();
 
+
+#define SPI_FLASH_CACHE2PHYS_FAIL UINT32_MAX /*<! Result from spi_flash_cache2phys() if flash cache address is invalid */
+
+/**
+ * @brief Given a memory address where flash is mapped, return the corresponding physical flash offset.
+ *
+ * Cache address does not have have been assigned via spi_flash_mmap(), any address in flash map space can be looked up.
+ *
+ * @param cached Pointer to flashed cached memory.
+ *
+ * @return
+ * - SPI_FLASH_CACHE2PHYS_FAIL If cache address is outside flash cache region, or the address is not mapped.
+ * - Otherwise, returns physical offset in flash
+ */
+size_t spi_flash_cache2phys(const void *cached);
+
+/** @brief Given a physical offset in flash, return the address where it is mapped in the memory space.
+ *
+ * Physical address does not have to have been assigned via spi_flash_mmap(), any address in flash can be looked up.
+ *
+ * @note Only the first matching cache address is returned. If MMU flash cache table is configured so multiple entries
+ * point to the same physical address, there may be more than one cache address corresponding to that physical
+ * address. It is also possible for a single physical address to be mapped to both the IROM and DROM regions.
+ *
+ * @note This function doesn't impose any alignment constraints, but if memory argument is SPI_FLASH_MMAP_INST and
+ * phys_offs is not 4-byte aligned, then reading from the returned pointer will result in a crash.
+ *
+ * @param phys_offs Physical offset in flash memory to look up.
+ * @param memory Memory type to look up a flash cache address mapping for (IROM or DROM)
+ *
+ * @return
+ * - NULL if the physical address is invalid or not mapped to flash cache of the specified memory type.
+ * - Cached memory address (in IROM or DROM space) corresponding to phys_offs.
+ */
+const void *spi_flash_phys2cache(size_t phys_offs, spi_flash_mmap_memory_t memory);
+
+/** @brief Check at runtime if flash cache is enabled on both CPUs
+ *
+ * @return true if both CPUs have flash cache enabled, false otherwise.
+ */
+bool spi_flash_cache_enabled();
+
 /**
  * @brief SPI flash critical section enter function.
  */

tools/sdk/include/ulp/esp32/ulp.h

@@ -81,7 +81,7 @@ extern "C" {
 #define B_CMP_L 0               /*!< Branch if R0 is less than an immediate */
 #define B_CMP_GE 1              /*!< Branch if R0 is greater than or equal to an immediate */
 
-#define OPCODE_END 9            /*!< Stop executing the program (not implemented yet) */
+#define OPCODE_END 9            /*!< Stop executing the program */
 #define SUB_OPCODE_END 0        /*!< Stop executing the program and optionally wake up the chip */
 #define SUB_OPCODE_SLEEP 1      /*!< Stop executing the program and run it again after selected interval */
 
@@ -222,7 +222,7 @@ typedef union {
     struct {
         uint32_t dreg : 2;          /*!< Register where to store temperature measurement result */
         uint32_t wait_delay: 14;    /*!< Cycles to wait after measurement is done */
-        uint32_t cycles: 12;        /*!< Cycles used to perform measurement */
+        uint32_t reserved: 12;      /*!< Reserved, set to 0 */
         uint32_t opcode: 4;         /*!< Opcode (OPCODE_TSENS) */
     } tsens;                        /*!< Format of TSENS instruction */
 
@@ -271,7 +271,12 @@ _Static_assert(sizeof(ulp_insn_t) == 4, "ULP coprocessor instruction size should
     .cycles = cycles_ } }
 
 /**
- * Halt the coprocessor
+ * Halt the coprocessor.
+ *
+ * This instruction halts the coprocessor, but keeps ULP timer active.
+ * As such, ULP program will be restarted again by timer.
+ * To stop the program and prevent the timer from restarting the program,
+ * use I_END(0) instruction.
  */
 #define I_HALT() { .halt = {\
     .unused = 0, \
@@ -307,7 +312,7 @@ static inline uint32_t SOC_REG_TO_ULP_PERIPH_SEL(uint32_t reg) {
  * This instruction can access RTC_CNTL_, RTC_IO_, and SENS_ peripheral registers.
  */
 #define I_WR_REG(reg, low_bit, high_bit, val) {.wr_reg = {\
-    .addr = reg & 0xff, \
+    .addr = (reg & 0xff) / sizeof(uint32_t), \
     .periph_sel = SOC_REG_TO_ULP_PERIPH_SEL(reg), \
     .data = val, \
     .low = low_bit, \
@@ -320,8 +325,8 @@ static inline uint32_t SOC_REG_TO_ULP_PERIPH_SEL(uint32_t reg) {
  * R0 = reg[high_bit : low_bit]
  * This instruction can access RTC_CNTL_, RTC_IO_, and SENS_ peripheral registers.
  */
-#define I_RD_REG(reg, low_bit, high_bit, val) {.wr_reg = {\
+#define I_RD_REG(reg, low_bit, high_bit) {.rd_reg = {\
-    .addr = reg & 0xff, \
+    .addr = (reg & 0xff) / sizeof(uint32_t), \
     .periph_sel = SOC_REG_TO_ULP_PERIPH_SEL(reg), \
     .unused = 0, \
     .low = low_bit, \
@@ -329,25 +334,105 @@ static inline uint32_t SOC_REG_TO_ULP_PERIPH_SEL(uint32_t reg) {
     .opcode = OPCODE_RD_REG } }
 
 /**
- * End program.
+ * Set or clear a bit in the peripheral register.
  *
- * If wake == 1, wake up main CPU.
+ * Sets bit (1 << shift) of register reg to value val.
+ * This instruction can access RTC_CNTL_, RTC_IO_, and SENS_ peripheral registers.
  */
-#define I_END(wake) { .end = { \
+#define I_WR_REG_BIT(reg, shift, val) I_WR_REG(reg, shift, shift, val)
-        .wakeup = wake, \
+
+/**
+ * Wake the SoC from deep sleep.
+ *
+ * This instruction initiates wake up from deep sleep.
+ * Use esp_deep_sleep_enable_ulp_wakeup to enable deep sleep wakeup
+ * triggered by the ULP before going into deep sleep.
+ * Note that ULP program will still keep running until the I_HALT
+ * instruction, and it will still be restarted by timer at regular
+ * intervals, even when the SoC is woken up.
+ *
+ * To stop the ULP program, use I_HALT instruction.
+ *
+ * To disable the timer which start ULP program, use I_END()
+ * instruction. I_END instruction clears the
+ * RTC_CNTL_ULP_CP_SLP_TIMER_EN_S bit of RTC_CNTL_STATE0_REG
+ * register, which controls the ULP timer.
+ */
+#define I_WAKE() { .end = { \
+        .wakeup = 1, \
         .unused = 0, \
         .sub_opcode = SUB_OPCODE_END, \
         .opcode = OPCODE_END } }
 
+/**
+ * Stop ULP program timer.
+ *
+ * This is a convenience macro which disables the ULP program timer.
+ * Once this instruction is used, ULP program will not be restarted
+ * anymore until ulp_run function is called.
+ *
+ * ULP program will continue running after this instruction. To stop
+ * the currently running program, use I_HALT().
+ */
+#define I_END() \
+    I_WR_REG_BIT(RTC_CNTL_STATE0_REG, RTC_CNTL_ULP_CP_SLP_TIMER_EN_S, 0)
+/**
+ * Select the time interval used to run ULP program.
+ *
+ * This instructions selects which of the SENS_SLEEP_CYCLES_Sx
+ * registers' value is used by the ULP program timer.
+ * When the ULP program stops at I_HALT instruction, ULP program
+ * timer start counting. When the counter reaches the value of
+ * the selected SENS_SLEEP_CYCLES_Sx register, ULP program
+ * start running again from the start address (passed to the ulp_run
+ * function).
+ * There are 5 SENS_SLEEP_CYCLES_Sx registers, so 0 <= timer_idx < 5.
+ *
+ * By default, SENS_SLEEP_CYCLES_S0 register is used by the ULP
+ * program timer.
+ */
+#define I_SLEEP_CYCLE_SEL(timer_idx) { .sleep = { \
+        .cycle_sel = timer_idx, \
+        .unused = 0, \
+        .sub_opcode = SUB_OPCODE_SLEEP, \
+        .opcode = OPCODE_END } }
+
+/**
+ * Perform temperature sensor measurement and store it into reg_dest.
+ *
+ * Delay can be set between 1 and ((1 << 14) - 1). Higher values give
+ * higher measurement resolution.
+ */
+#define I_TSENS(reg_dest, delay) { .tsens = { \
+        .dreg = reg_dest, \
+        .wait_delay = delay, \
+        .reserved = 0, \
+        .opcode = OPCODE_TSENS } }
+
+/**
+ * Perform ADC measurement and store result in reg_dest.
+ *
+ * adc_idx selects ADC (0 or 1).
+ * pad_idx selects ADC pad (0 - 7).
+ */
+#define I_ADC(reg_dest, adc_idx, pad_idx) { .adc = {\
+        .dreg = reg_dest, \
+        .mux = pad_idx + 1, \
+        .sar_sel = adc_idx, \
+        .unused1 = 0, \
+        .cycles = 0, \
+        .unused2 = 0, \
+        .opcode = OPCODE_ADC } }
+
 /**
  * Store value from register reg_val into RTC memory.
  *
  * The value is written to an offset calculated by adding value of
  * reg_addr register and offset_ field (this offset is expressed in 32-bit words).
  * 32 bits written to RTC memory are built as follows:
- * - 5 MSBs are zero
+ * - bits [31:21] hold the PC of current instruction, expressed in 32-bit words
- * - next 11 bits hold the PC of current instruction, expressed in 32-bit words
+ * - bits [20:16] = 5'b1
- * - next 16 bits hold the actual value to be written
+ * - bits [15:0] are assigned the contents of reg_val
  *
  * RTC_SLOW_MEM[addr + offset_] = { 5'b0, insn_PC[10:0], val[15:0] }
  */

tools/sdk/ld/esp32.rom.ld

@@ -1563,6 +1563,8 @@ PROVIDE ( SPI_Write_Encrypt_Disable = 0x40062e60 );
 PROVIDE ( SPI_Write_Encrypt_Enable = 0x40062df4 );
 /* This is static function, but can be used, not generated by script*/
 PROVIDE ( SPI_write_status = 0x400622f0 );
+/* This is static function, but can be used, not generated by script */
+PROVIDE ( SPI_Wait_Idle = 0x400622c0 );
 PROVIDE ( srand = 0x40001004 );
 PROVIDE ( __sread = 0x40001118 );
 PROVIDE ( __srefill_r = 0x400593d4 );