arduino-esp32/cores/esp32/esp32-hal-psram.c
2021-02-18 12:14:35 +02:00

112 lines
2.8 KiB
C

// Copyright 2015-2021 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// 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.
#include "esp32-hal.h"
#if CONFIG_SPIRAM_SUPPORT
#include "esp_spiram.h"
#include "soc/efuse_reg.h"
#include "esp_heap_caps.h"
static volatile bool spiramDetected = false;
static volatile bool spiramFailed = false;
bool psramInit(){
if (spiramDetected) {
return true;
}
#ifndef CONFIG_SPIRAM_BOOT_INIT
if (spiramFailed) {
return false;
}
uint32_t chip_ver = REG_GET_FIELD(EFUSE_BLK0_RDATA3_REG, EFUSE_RD_CHIP_VER_PKG);
uint32_t pkg_ver = chip_ver & 0x7;
if (pkg_ver == EFUSE_RD_CHIP_VER_PKG_ESP32D2WDQ5 || pkg_ver == EFUSE_RD_CHIP_VER_PKG_ESP32PICOD2) {
spiramFailed = true;
log_w("PSRAM not supported!");
return false;
}
esp_spiram_init_cache();
if (esp_spiram_init() != ESP_OK) {
spiramFailed = true;
log_w("PSRAM init failed!");
pinMatrixOutDetach(16, false, false);
pinMatrixOutDetach(17, false, false);
return false;
}
if (!esp_spiram_test()) {
spiramFailed = true;
log_e("PSRAM test failed!");
return false;
}
if (esp_spiram_add_to_heapalloc() != ESP_OK) {
spiramFailed = true;
log_e("PSRAM could not be added to the heap!");
return false;
}
#endif
spiramDetected = true;
log_d("PSRAM enabled");
return true;
}
bool IRAM_ATTR psramFound(){
return spiramDetected;
}
void IRAM_ATTR *ps_malloc(size_t size){
if(!spiramDetected){
return NULL;
}
return heap_caps_malloc(size, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
}
void IRAM_ATTR *ps_calloc(size_t n, size_t size){
if(!spiramDetected){
return NULL;
}
return heap_caps_calloc(n, size, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
}
void IRAM_ATTR *ps_realloc(void *ptr, size_t size){
if(!spiramDetected){
return NULL;
}
return heap_caps_realloc(ptr, size, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
}
#else
bool psramInit(){
return false;
}
bool IRAM_ATTR psramFound(){
return false;
}
void IRAM_ATTR *ps_malloc(size_t size){
return NULL;
}
void IRAM_ATTR *ps_calloc(size_t n, size_t size){
return NULL;
}
void IRAM_ATTR *ps_realloc(void *ptr, size_t size){
return NULL;
}
#endif