104 lines
4.1 KiB
C
104 lines
4.1 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020 microDev
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <string.h>
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#include "shared-bindings/memorymap/AddressRange.h"
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#include "py/runtime.h"
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#include "soc/soc.h"
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size_t allow_ranges[][2] = {
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// ULP accessible RAM
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{SOC_RTC_DATA_LOW, SOC_RTC_DATA_HIGH},
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// CPU accessible RAM that is preserved during sleep if the RTC power domain is left on.
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{SOC_RTC_DRAM_LOW, SOC_RTC_DRAM_HIGH},
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// RTC peripheral registers
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{0x60008000, 0x60009000}
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};
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void common_hal_memorymap_addressrange_construct(memorymap_addressrange_obj_t *self, uint8_t *start_address, size_t length) {
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bool allowed = false;
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for (size_t i = 0; i < MP_ARRAY_SIZE(allow_ranges); i++) {
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uint8_t *allowed_start = (uint8_t *)allow_ranges[i][0];
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uint8_t *allowed_end = (uint8_t *)allow_ranges[i][1];
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if (allowed_start <= start_address &&
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(start_address + length) <= allowed_end) {
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allowed = true;
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break;
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}
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}
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if (!allowed) {
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mp_raise_ValueError(translate("Address range not allowed"));
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}
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self->start_address = start_address;
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self->len = length;
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}
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size_t common_hal_memorymap_addressrange_get_length(const memorymap_addressrange_obj_t *self) {
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return self->len;
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}
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void common_hal_memorymap_addressrange_set_bytes(const memorymap_addressrange_obj_t *self,
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size_t start_index, uint8_t *values, size_t len) {
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uint8_t *address = self->start_address + start_index;
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wcast-align"
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if (len == 1) {
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*((uint8_t *)address) = values[0];
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} else if (len == sizeof(uint16_t) && (((size_t)address) % sizeof(uint16_t)) == 0) {
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*((uint16_t *)address) = ((uint16_t *)values)[0];
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} else if (len == sizeof(uint32_t) && (((size_t)address) % sizeof(uint32_t)) == 0) {
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*((uint32_t *)address) = ((uint32_t *)values)[0];
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} else if (len == sizeof(uint64_t) && (((size_t)address) % sizeof(uint64_t)) == 0) {
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*((uint64_t *)address) = ((uint64_t *)values)[0];
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} else {
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memcpy(address, values, len);
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}
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#pragma GCC diagnostic pop
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}
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void common_hal_memorymap_addressrange_get_bytes(const memorymap_addressrange_obj_t *self,
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size_t start_index, size_t len, uint8_t *values) {
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uint8_t *address = self->start_address + start_index;
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wcast-align"
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if (len == 1) {
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values[0] = *((uint8_t *)address);
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} else if (len == sizeof(uint16_t) && (((size_t)address) % sizeof(uint16_t)) == 0) {
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((uint16_t *)values)[0] = *((uint16_t *)address);
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} else if (len == sizeof(uint32_t) && (((size_t)address) % sizeof(uint32_t)) == 0) {
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((uint32_t *)values)[0] = *((uint32_t *)address);
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} else if (len == sizeof(uint64_t) && (((size_t)address) % sizeof(uint64_t)) == 0) {
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((uint64_t *)values)[0] = *((uint64_t *)address);
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} else {
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memcpy(values, address, len);
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}
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#pragma GCC diagnostic pop
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}
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