Berry add module `flash`

lib/libesp32/Berry/default/be_flash_lib.c

@@ -0,0 +1,32 @@
+/********************************************************************
+ * Berry module `webserver`
+ * 
+ * To use: `import webserver`
+ * 
+ * Allows to respond to HTTP request
+ *******************************************************************/
+#include "be_constobj.h"
+
+extern int p_flash_read(bvm *vm);
+extern int p_flash_write(bvm *vm);
+extern int p_flash_erase(bvm *vm);
+
+#if !BE_USE_PRECOMPILED_OBJECT
+be_native_module_attr_table(flash) {
+    be_native_module_function("read", p_flash_read),
+    be_native_module_function("write", p_flash_write),
+    be_native_module_function("erase", p_flash_erase),
+
+};
+
+be_define_native_module(flash, NULL);
+#else
+/* @const_object_info_begin
+module flash (scope: global) {
+    read, func(p_flash_read)
+    write, func(p_flash_write)
+    erase, func(p_flash_erase)
+}
+@const_object_info_end */
+#include "../generate/be_fixed_flash.h"
+#endif

lib/libesp32/Berry/default/be_modtab.c

@@ -26,6 +26,7 @@ be_extern_native_module(light);
 be_extern_native_module(gpio);
 be_extern_native_module(energy);
 be_extern_native_module(webserver);
+be_extern_native_module(flash);
 #ifdef USE_LVGL
 be_extern_native_module(lvgl);
 #endif // USE_LVGL
@@ -83,6 +84,7 @@ BERRY_LOCAL const bntvmodule* const be_module_table[] = {
 #ifdef USE_WEBSERVER
     &be_native_module(webserver),
 #endif // USE_WEBSERVER
+    &be_native_module(flash),
 
 
     /* user-defined modules register end */

lib/libesp32/Berry/generate/be_const_strtab.h

@@ -223,6 +223,7 @@ extern const bcstring be_const_str_SYMBOL_NEXT;
 extern const bcstring be_const_str_lv_label;
 extern const bcstring be_const_str_str;
 extern const bcstring be_const_str_ZIGBEE_TX;
+extern const bcstring be_const_str_erase;
 extern const bcstring be_const_str_ILI9341_CS;
 extern const bcstring be_const_str_VL53L0X_XSHUT1;
 extern const bcstring be_const_str_time_reached;

lib/libesp32/Berry/generate/be_const_strtab_def.h

@@ -222,7 +222,8 @@ be_define_const_str(FALLING, "FALLING", 2851701064u, 0, 7, &be_const_str_SYMBOL_
 be_define_const_str(SYMBOL_NEXT, "SYMBOL_NEXT", 1102844455u, 0, 11, &be_const_str_lv_label);
 be_define_const_str(lv_label, "lv_label", 4199664246u, 0, 8, NULL);
 be_define_const_str(str, "str", 3259748752u, 0, 3, NULL);
-be_define_const_str(ZIGBEE_TX, "ZIGBEE_TX", 25119256u, 0, 9, NULL);
+be_define_const_str(ZIGBEE_TX, "ZIGBEE_TX", 25119256u, 0, 9, &be_const_str_erase);
+be_define_const_str(erase, "erase", 1010949589u, 0, 5, NULL);
 be_define_const_str(ILI9341_CS, "ILI9341_CS", 3519318851u, 0, 10, &be_const_str_VL53L0X_XSHUT1);
 be_define_const_str(VL53L0X_XSHUT1, "VL53L0X_XSHUT1", 2341134183u, 0, 14, &be_const_str_time_reached);
 be_define_const_str(time_reached, "time_reached", 2075136773u, 0, 12, NULL);
@@ -868,6 +869,6 @@ static const bstring* const m_string_table[] = {
 
 static const struct bconststrtab m_const_string_table = {
     .size = 281,
-    .count = 562,
+    .count = 563,
     .table = m_string_table
 };

lib/libesp32/Berry/generate/be_fixed_flash.h

@@ -0,0 +1,19 @@
+#include "be_constobj.h"
+
+static be_define_const_map_slots(m_libflash_map) {
+    { be_const_key(read, -1), be_const_func(p_flash_read) },
+    { be_const_key(erase, -1), be_const_func(p_flash_erase) },
+    { be_const_key(write, -1), be_const_func(p_flash_write) },
+};
+
+static be_define_const_map(
+    m_libflash_map,
+    3
+);
+
+static be_define_const_module(
+    m_libflash,
+    "flash"
+);
+
+BE_EXPORT_VARIABLE be_define_const_native_module(flash, NULL);

tasmota/xdrv_52_3_berry_flash.ino

@@ -0,0 +1,107 @@
+/*
+  xdrv_52_3_berry_webserver.ino - Berry scripting language, webserver module
+
+  Copyright (C) 2021 Stephan Hadinger, Berry language by Guan Wenliang https://github.com/Skiars/berry
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
+#ifdef USE_BERRY
+
+#include <berry.h>
+#include "esp_spi_flash.h"
+
+/*********************************************************************************************\
+ * Native functions mapped to Berry functions
+ * 
+ * import flash
+ * 
+\*********************************************************************************************/
+extern "C" {
+  // Berry: `flash.read(address:int[, length:int]) -> bytes()`
+  //
+  // If length is not specified, it is full block 4KB
+  int32_t p_flash_read(struct bvm *vm);
+  int32_t p_flash_read(struct bvm *vm) {
+    int32_t argc = be_top(vm); // Get the number of arguments
+    if (argc >= 1 && be_isint(vm, 1) && 
+        (argc < 2 || be_isint(vm, 2)) ) {    // optional second argument must be int
+      uint32_t address = be_toint(vm, 1);
+      uint32_t length = 0x1000;
+      if (argc >= 2) {
+        length = be_toint(vm, 2);
+        if (length <= 0) { length = 0x1000; }
+      }
+      // allocate a buffer in the heap that will be automatically freed when going out of scope
+      auto buf = std::unique_ptr<uint8_t[]>(new uint8_t[length]);
+      esp_err_t ret = spi_flash_read(address, buf.get(), length);
+      if (ret)  {
+        be_raise(vm, "internal_error", "Error calling spi_flash_read()");
+      }
+      be_pushbytes(vm, buf.get(), length);
+      be_return(vm);
+    }
+    be_raise(vm, kTypeError, nullptr);
+  }
+
+  // Berry: `flash.write(address:int, content:bytes()) -> nil`
+  //
+  // If length is not specified, it is full block 4KB
+  int32_t p_flash_write(struct bvm *vm);
+  int32_t p_flash_write(struct bvm *vm) {
+    int32_t argc = be_top(vm); // Get the number of arguments
+    if (argc >= 2 && be_isint(vm, 1) && be_isinstance(vm, 2)) {
+      be_getglobal(vm, "bytes"); /* get the bytes class */ /* TODO eventually replace with be_getbuiltin */
+      if (be_isderived(vm, 2)) {
+        uint32_t address = be_toint(vm, 1);
+        size_t length = 0;
+        const void * bytes = be_tobytes(vm, 2, &length);
+        if (bytes && length > 0) {
+          esp_err_t ret = spi_flash_write(address, bytes, length);
+          if (ret)  {
+            be_raise(vm, "internal_error", "Error calling spi_flash_read()");
+          }
+          be_return_nil(vm);
+          // success
+        }
+      }
+    }
+    be_raise(vm, kTypeError, nullptr);
+  }
+
+  // Berry: `flash.erase(address:int, length:int) -> nil`
+  //
+  // Address and length must be 4KB aligned
+  int32_t p_flash_erase(struct bvm *vm);
+  int32_t p_flash_erase(struct bvm *vm) {
+    int32_t argc = be_top(vm); // Get the number of arguments
+    if (argc >= 2 && be_isint(vm, 1) && be_isint(vm, 2)) {
+      int32_t address = be_toint(vm, 1);
+      int32_t length = be_toint(vm, 2);
+      if ((address % 0x1000) != 0 || address < 0) {
+        be_raise(vm, "value_error", "Address must be a multiple of 0x1000");
+      }
+      if ((length % 0x1000) != 0 || length < 0) {
+        be_raise(vm, "value_error", "Length must be a multiple of 0x1000");
+      }
+      esp_err_t ret = spi_flash_erase_range(address, length);
+      be_return_nil(vm);
+    }
+    be_raise(vm, kTypeError, nullptr);
+  }
+
+}
+
+#endif  // USE_BERRY