[mirror_qemu.git] / include / hw / ssi / mss-spi.h

/*
 * Microsemi SmartFusion2 SPI
 *
 * Copyright (c) 2017 Subbaraya Sundeep <sundeep.lkml@gmail.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#ifndef HW_MSS_SPI_H
#define HW_MSS_SPI_H

#include "hw/sysbus.h"
#include "hw/ssi/ssi.h"
#include "qemu/fifo32.h"

#define TYPE_MSS_SPI   "mss-spi"
#define MSS_SPI(obj)   OBJECT_CHECK(MSSSpiState, (obj), TYPE_MSS_SPI)

#define R_SPI_MAX             16

typedef struct MSSSpiState {
    SysBusDevice parent_obj;

    MemoryRegion mmio;

    qemu_irq irq;

    qemu_irq cs_line;

    SSIBus *spi;

    Fifo32 rx_fifo;
    Fifo32 tx_fifo;

    int fifo_depth;
    uint32_t frame_count;
    bool enabled;

    uint32_t regs[R_SPI_MAX];
} MSSSpiState;

#endif /* HW_MSS_SPI_H */
Commit	Line	Data
268ee7de SS	1	/*
	2	* Microsemi SmartFusion2 SPI
	3	*
	4	* Copyright (c) 2017 Subbaraya Sundeep <sundeep.lkml@gmail.com>
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a copy
	7	* of this software and associated documentation files (the "Software"), to deal
	8	* in the Software without restriction, including without limitation the rights
	9	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	10	* copies of the Software, and to permit persons to whom the Software is
	11	* furnished to do so, subject to the following conditions:
	12	*
	13	* The above copyright notice and this permission notice shall be included in
	14	* all copies or substantial portions of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	22	* THE SOFTWARE.
	23	*/
	24
	25	#ifndef HW_MSS_SPI_H
	26	#define HW_MSS_SPI_H
	27
	28	#include "hw/sysbus.h"
	29	#include "hw/ssi/ssi.h"
	30	#include "qemu/fifo32.h"
	31
	32	#define TYPE_MSS_SPI "mss-spi"
	33	#define MSS_SPI(obj) OBJECT_CHECK(MSSSpiState, (obj), TYPE_MSS_SPI)
	34
	35	#define R_SPI_MAX 16
	36
	37	typedef struct MSSSpiState {
	38	SysBusDevice parent_obj;
	39
	40	MemoryRegion mmio;
	41
	42	qemu_irq irq;
	43
	44	qemu_irq cs_line;
	45
	46	SSIBus *spi;
	47
	48	Fifo32 rx_fifo;
	49	Fifo32 tx_fifo;
	50
	51	int fifo_depth;
	52	uint32_t frame_count;
	53	bool enabled;
	54
	55	uint32_t regs[R_SPI_MAX];
	56	} MSSSpiState;
	57
	58	#endif /* HW_MSS_SPI_H */