1 // Copyright 2023 The Pigweed Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not 4 // use this file except in compliance with the License. You may obtain a copy of 5 // the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12 // License for the specific language governing permissions and limitations under 13 // the License. 14 15 #pragma once 16 17 #include <cstdint> 18 19 #include "hardware/spi.h" 20 #include "pw_spi/initiator.h" 21 22 namespace pw::spi { 23 24 // Pico SDK implementation of the SPI Initiator 25 class Rp2040Initiator final : public Initiator { 26 public: Rp2040Initiator(spi_inst_t * spi)27 Rp2040Initiator(spi_inst_t* spi) : spi_(spi) {} 28 29 private: 30 // Implements pw::spi::Initiator: 31 Status DoConfigure(const Config& config) override; 32 Status DoWriteRead(ConstByteSpan write_buffer, ByteSpan read_buffer) override; 33 34 spi_inst_t* spi_; 35 }; 36 37 } // namespace pw::spi 38