xref: /openbmc/qemu/include/hw/misc/cbus.h (revision afd76053)
1 /*
2  * CBUS three-pin bus and the Retu / Betty / Tahvo / Vilma / Avilma /
3  * Hinku / Vinku / Ahne / Pihi chips used in various Nokia platforms.
4  * Based on reverse-engineering of a linux driver.
5  *
6  * Copyright (C) 2008 Nokia Corporation
7  * Written by Andrzej Zaborowski
8  *
9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
10  * See the COPYING file in the top-level directory.
11  */
12 
13 #ifndef HW_MISC_CBUS_H
14 #define HW_MISC_CBUS_H
15 
16 
17 typedef struct {
18     qemu_irq clk;
19     qemu_irq dat;
20     qemu_irq sel;
21 } CBus;
22 
23 CBus *cbus_init(qemu_irq dat_out);
24 void cbus_attach(CBus *bus, void *slave_opaque);
25 
26 void *retu_init(qemu_irq irq, int vilma);
27 void *tahvo_init(qemu_irq irq, int betty);
28 
29 void retu_key_event(void *retu, int state);
30 
31 #endif
32