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