qdev: don't access name through info
[qemu.git] / hw / ssi.h
1 /* QEMU Synchronous Serial Interface support. */
2
3 /* In principle SSI is a point-point interface. As such the qemu
4 implementation has a single slave device on a "bus".
5 However it is fairly common for boards to have multiple slaves
6 connected to a single master, and select devices with an external
7 chip select. This is implemented in qemu by having an explicit mux device.
8 It is assumed that master and slave are both using the same transfer width.
9 */
10
11 #ifndef QEMU_SSI_H
12 #define QEMU_SSI_H
13
14 #include "qdev.h"
15
16 typedef struct SSISlave SSISlave;
17
18 /* Slave devices. */
19 typedef struct {
20 DeviceInfo qdev;
21 int (*init)(SSISlave *dev);
22 uint32_t (*transfer)(SSISlave *dev, uint32_t val);
23 } SSISlaveInfo;
24
25 struct SSISlave {
26 DeviceState qdev;
27 SSISlaveInfo *info;
28 };
29
30 #define SSI_SLAVE_FROM_QDEV(dev) DO_UPCAST(SSISlave, qdev, dev)
31 #define FROM_SSI_SLAVE(type, dev) DO_UPCAST(type, ssidev, dev)
32
33 void ssi_register_slave(SSISlaveInfo *info);
34
35 DeviceState *ssi_create_slave(SSIBus *bus, const char *name);
36
37 /* Master interface. */
38 SSIBus *ssi_create_bus(DeviceState *parent, const char *name);
39
40 uint32_t ssi_transfer(SSIBus *bus, uint32_t val);
41
42 /* max111x.c */
43 void max111x_set_input(DeviceState *dev, int line, uint8_t value);
44
45 #endif