Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
[qemu.git] / include / hw / char / escc.h
1 #ifndef HW_ESCC_H
2 #define HW_ESCC_H
3
4 #include "chardev/char-fe.h"
5 #include "chardev/char-serial.h"
6 #include "hw/sysbus.h"
7 #include "ui/input.h"
8 #include "qom/object.h"
9
10 /* escc.c */
11 #define TYPE_ESCC "escc"
12 #define ESCC_SIZE 4
13
14 OBJECT_DECLARE_SIMPLE_TYPE(ESCCState, ESCC)
15
16 typedef enum {
17 escc_chn_a, escc_chn_b,
18 } ESCCChnID;
19
20 typedef enum {
21 escc_serial, escc_kbd, escc_mouse,
22 } ESCCChnType;
23
24 #define ESCC_SERIO_QUEUE_SIZE 256
25
26 typedef struct {
27 uint8_t data[ESCC_SERIO_QUEUE_SIZE];
28 int rptr, wptr, count;
29 } ESCCSERIOQueue;
30
31 #define ESCC_SERIAL_REGS 16
32 typedef struct ESCCChannelState {
33 qemu_irq irq;
34 uint32_t rxint, txint, rxint_under_svc, txint_under_svc;
35 struct ESCCChannelState *otherchn;
36 uint32_t reg;
37 uint8_t wregs[ESCC_SERIAL_REGS], rregs[ESCC_SERIAL_REGS];
38 ESCCSERIOQueue queue;
39 CharBackend chr;
40 int e0_mode, led_mode, caps_lock_mode, num_lock_mode;
41 int disabled;
42 int clock;
43 uint32_t vmstate_dummy;
44 ESCCChnID chn; /* this channel, A (base+4) or B (base+0) */
45 ESCCChnType type;
46 uint8_t rx, tx;
47 QemuInputHandlerState *hs;
48 } ESCCChannelState;
49
50 struct ESCCState {
51 SysBusDevice parent_obj;
52
53 struct ESCCChannelState chn[2];
54 uint32_t it_shift;
55 bool bit_swap;
56 MemoryRegion mmio;
57 uint32_t disabled;
58 uint32_t frequency;
59 };
60
61 #endif