df53f34b51
* backport SPIPortManager from @skippermeister * adapt to support ESP32 and ESP32-S3 and ESP32-C3 * use logic to work with SPI numbering as in the official documentation: start with SPI0 and go up to SPI3 * increase Huawei CAN controller stack size to 2000 * increase startup delay for USB_CDC enabled builds to be able to catch bootlogs over USB
56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <array>
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#include <optional>
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#include <string>
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#include <driver/spi_master.h>
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/**
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* SPI# to SPI ID and SPI_HOST mapping
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*
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* ESP32
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* | SPI # | SPI ID | SPI_HOST |
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* | 2 | 2 | 1 |
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* | 3 | 3 | 2 |
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*
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* ESP32-S3
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* | SPI # | SPI ID | SPI_HOST |
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* | 2 | 0 | 1 |
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* | 3 | 1 | 2 |
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*
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* ESP32-C3
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* | SPI # | SPI ID | SPI_HOST |
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* | 2 | 0 | 1 |
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*
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*/
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class SPIPortManagerClass {
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public:
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void init();
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std::optional<uint8_t> allocatePort(std::string const& owner);
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void freePort(std::string const& owner);
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spi_host_device_t SPIhostNum(uint8_t spi_num);
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private:
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// the amount of SPIs available on supported ESP32 chips
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#if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32S3
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static size_t constexpr _num_controllers = 4;
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#else
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static size_t constexpr _num_controllers = 3;
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#endif
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#if CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S3
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static int8_t constexpr _offset_spi_num = -2; // FSPI=0, HSPI=1
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static int8_t constexpr _offset_spi_host = 1; // SPI1_HOST=0 but not usable, SPI2_HOST=1 and SPI3_HOST=2, first usable is SPI2_HOST
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#else
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static int8_t constexpr _offset_spi_num = 0; // HSPI=2, VSPI=3
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static int8_t constexpr _offset_spi_host = -1; // SPI1_HOST=0 but not usable, SPI2_HOST=1 and SPI3_HOST=2, first usable is SPI2_HOST
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#endif
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std::array<std::string, _num_controllers> _ports = { "" };
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};
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extern SPIPortManagerClass SPIPortManager;
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