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/* QEMU Synchronous Serial Interface support.  */
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/* In principle SSI is a point-point interface.  As such the qemu
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   implementation has a single slave device on a "bus".
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   However it is fairly common for boards to have multiple slaves
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   connected to a single master, and select devices with an external
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   chip select.  This is implemented in qemu by having an explicit mux device.
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   It is assumed that master and slave are both using the same transfer width.
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   */
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#ifndef QEMU_SSI_H
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#define QEMU_SSI_H
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#include "qdev.h"
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typedef struct SSISlave SSISlave;
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/* Slave devices.  */
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typedef struct {
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    DeviceInfo qdev;
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    int (*init)(SSISlave *dev);
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    uint32_t (*transfer)(SSISlave *dev, uint32_t val);
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} SSISlaveInfo;
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struct SSISlave {
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    DeviceState qdev;
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    SSISlaveInfo *info;
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};
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#define SSI_SLAVE_FROM_QDEV(dev) DO_UPCAST(SSISlave, qdev, dev)
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#define FROM_SSI_SLAVE(type, dev) DO_UPCAST(type, ssidev, dev)
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void ssi_register_slave(SSISlaveInfo *info);
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DeviceState *ssi_create_slave(SSIBus *bus, const char *name);
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/* Master interface.  */
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SSIBus *ssi_create_bus(DeviceState *parent, const char *name);
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uint32_t ssi_transfer(SSIBus *bus, uint32_t val);
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/* max111x.c */
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void max111x_set_input(DeviceState *dev, int line, uint8_t value);
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#endif