C++ (Cpp) ssi_auto_connect_slavesの例

コード例 #1

ファイル: xilinx_spi.c プロジェクト: cardoe/qemu

static int xilinx_spi_init(SysBusDevice *dev)
{
    int i;
    XilinxSPI *s = FROM_SYSBUS(typeof(*s), dev);

    DB_PRINT("\n");

    s->spi = ssi_create_bus(&dev->qdev, "spi");

    sysbus_init_irq(dev, &s->irq);
    s->cs_lines = g_new(qemu_irq, s->num_cs);
    ssi_auto_connect_slaves(DEVICE(s), s->cs_lines, s->spi);
    for (i = 0; i < s->num_cs; ++i) {
        sysbus_init_irq(dev, &s->cs_lines[i]);
    }

    memory_region_init_io(&s->mmio, OBJECT(s), &spi_ops, s,
                          "xilinx-spi", R_MAX * 4);
    sysbus_init_mmio(dev, &s->mmio);

    s->irqline = -1;

    fifo8_create(&s->tx_fifo, FIFO_CAPACITY);
    fifo8_create(&s->rx_fifo, FIFO_CAPACITY);

    return 0;
}

コード例 #2

ファイル: xilinx_spi.c プロジェクト: 32bitmicro/riscv-qemu

static int xilinx_spi_init(SysBusDevice *sbd)
{
    DeviceState *dev = DEVICE(sbd);
    XilinxSPI *s = XILINX_SPI(dev);
    int i;

    DB_PRINT("\n");

    s->spi = ssi_create_bus(dev, "spi");

    sysbus_init_irq(sbd, &s->irq);
    s->cs_lines = g_new0(qemu_irq, s->num_cs);
    ssi_auto_connect_slaves(dev, s->cs_lines, s->spi);
    for (i = 0; i < s->num_cs; ++i) {
        sysbus_init_irq(sbd, &s->cs_lines[i]);
    }

    memory_region_init_io(&s->mmio, OBJECT(s), &spi_ops, s,
                          "xilinx-spi", R_MAX * 4);
    sysbus_init_mmio(sbd, &s->mmio);

    s->irqline = -1;

    fifo8_create(&s->tx_fifo, FIFO_CAPACITY);
    fifo8_create(&s->rx_fifo, FIFO_CAPACITY);

    return 0;
}

コード例 #3

ファイル: imx_spi.c プロジェクト: heiher/qemu

static void imx_spi_realize(DeviceState *dev, Error **errp)
{
    IMXSPIState *s = IMX_SPI(dev);
    int i;

    s->bus = ssi_create_bus(dev, "spi");

    memory_region_init_io(&s->iomem, OBJECT(dev), &imx_spi_ops, s,
                          TYPE_IMX_SPI, 0x1000);
    sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->iomem);
    sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->irq);

    ssi_auto_connect_slaves(dev, s->cs_lines, s->bus);

    for (i = 0; i < 4; ++i) {
        sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->cs_lines[i]);
    }

    s->burst_length = 0;

    fifo32_create(&s->tx_fifo, ECSPI_FIFO_SIZE);
    fifo32_create(&s->rx_fifo, ECSPI_FIFO_SIZE);
}