mirror of https://github.com/xemu-project/xemu.git
58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/*
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* Allwinner SPI Bus Serial Interface registers definition
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*
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* Copyright (C) 2024 Strahinja Jankovic. <strahinja.p.jankovic@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef ALLWINNER_A10_SPI_H
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#define ALLWINNER_A10_SPI_H
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#include "hw/ssi/ssi.h"
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#include "hw/sysbus.h"
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#include "qemu/fifo8.h"
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#include "qom/object.h"
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/** Size of register I/O address space used by SPI device */
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#define AW_A10_SPI_IOSIZE (0x1000)
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/** Total number of known registers */
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#define AW_A10_SPI_REGS_NUM (AW_A10_SPI_IOSIZE / sizeof(uint32_t))
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#define AW_A10_SPI_FIFO_SIZE (64)
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#define AW_A10_SPI_CS_LINES_NR (4)
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#define TYPE_AW_A10_SPI "allwinner.spi"
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OBJECT_DECLARE_SIMPLE_TYPE(AWA10SPIState, AW_A10_SPI)
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struct AWA10SPIState {
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/*< private >*/
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SysBusDevice parent_obj;
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/*< public >*/
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MemoryRegion iomem;
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SSIBus *bus;
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qemu_irq irq;
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qemu_irq cs_lines[AW_A10_SPI_CS_LINES_NR];
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uint32_t regs[AW_A10_SPI_REGS_NUM];
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Fifo8 rx_fifo;
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Fifo8 tx_fifo;
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};
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#endif /* ALLWINNER_A10_SPI_H */
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