// Copyright 2015-2018 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef _SOC_SPI_PERIPH_H_
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#define _SOC_SPI_PERIPH_H_
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#include <stdint.h>
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#include "soc/soc.h"
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#include "soc/periph_defs.h"
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//include soc related (generated) definitions
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#include "soc/spi_pins.h"
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#include "soc/spi_reg.h"
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#include "soc/spi_struct.h"
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#include "soc/gpio_sig_map.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/*
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Stores a bunch of per-spi-peripheral data.
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*/
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typedef struct {
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const uint8_t spiclk_out; //GPIO mux output signals
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const uint8_t spiclk_in;
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const uint8_t spid_out;
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const uint8_t spiq_out;
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const uint8_t spiwp_out;
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const uint8_t spihd_out;
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const uint8_t spid_in; //GPIO mux input signals
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const uint8_t spiq_in;
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const uint8_t spiwp_in;
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const uint8_t spihd_in;
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const uint8_t spics_out[3]; // /CS GPIO output mux signals
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const uint8_t spics_in;
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const uint8_t spiclk_iomux_pin; //IO pins of IO_MUX muxed signals
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const uint8_t spid_iomux_pin;
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const uint8_t spiq_iomux_pin;
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const uint8_t spiwp_iomux_pin;
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const uint8_t spihd_iomux_pin;
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const uint8_t spics0_iomux_pin;
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const uint8_t irq; //irq source for interrupt mux
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const uint8_t irq_dma; //dma irq source for interrupt mux
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const periph_module_t module; //peripheral module, for enabling clock etc
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spi_dev_t *hw; //Pointer to the hardware registers
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} spi_signal_conn_t;
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extern const spi_signal_conn_t spi_periph_signal[3];
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SOC_SPI_PERIPH_H_ */
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