1 /* $NetBSD: gemini_lpcvar.h,v 1.4 2012/10/27 17:17:38 chs Exp $ */
2
3 #ifndef _ARM_GEMINI_LPCVAR_H
4 #define _ARM_GEMINI_LPCVAR_H
5
6 #include <sys/types.h>
7 #include <sys/device.h>
8 #include <sys/bus.h>
9
10 #define GEMINI_LPC_LDN_ALL -1 /* "global" LDN */
11
12 typedef void * lpctag_t;
13 typedef void * lpcintrtag_t;
14
15 typedef struct gemini_lpc_attach_args {
16 lpctag_t lpc_tag;
17 uint lpc_ldn;
18 bus_addr_t lpc_base;
19 bus_addr_t lpc_addr;
20 bus_size_t lpc_size;
21 uint lpc_intr;
22 bus_space_tag_t lpc_iot;
23 } gemini_lpc_attach_args_t;
24
25 /* la_flags */
26 #define LPC_FL_ENABLED 0x01 /* device is enabled */
27
28 typedef struct gemini_lpc_bus_ops {
29 uint8_t (*lpc_pnp_read)(lpctag_t, int, uint);
30 void (*lpc_pnp_write)(lpctag_t, int, uint, uint8_t);
31 void (*lpc_pnp_enter)(lpctag_t);
32 void (*lpc_pnp_exit)(lpctag_t);
33 void *(*lpc_intr_establish)(lpctag_t, uint, int, int,
34 int (*)(void *), void *);
35 void (*lpc_intr_disestablish)(lpctag_t, void *);
36 } gemini_lpc_bus_ops_t;
37
38 typedef struct gemini_lpc_softc {
39 bus_addr_t sc_addr;
40 bus_size_t sc_size;
41 int sc_intr;
42 bus_space_tag_t sc_iot;
43 bus_space_handle_t sc_ioh;
44 void *sc_lpchctag;
45 struct gemini_lpc_bus_ops *sc_bus_ops;
46 } gemini_lpc_softc_t;
47
48
49 static inline uint8_t
lpc_pnp_read(lpctag_t tag,int ldn,uint off)50 lpc_pnp_read(lpctag_t tag, int ldn, uint off)
51 {
52 gemini_lpc_softc_t *sc = tag;
53 return (*sc->sc_bus_ops->lpc_pnp_read)(tag, ldn, off);
54 }
55
56 static inline void
lpc_pnp_write(lpctag_t tag,int ldn,uint off,uint8_t val)57 lpc_pnp_write(lpctag_t tag, int ldn, uint off, uint8_t val)
58 {
59 gemini_lpc_softc_t *sc = tag;
60 return (*sc->sc_bus_ops->lpc_pnp_write)(tag, ldn, off, val);
61 }
62
63 static inline void
lpc_pnp_enter(lpctag_t tag)64 lpc_pnp_enter(lpctag_t tag)
65 {
66 gemini_lpc_softc_t *sc = tag;
67 return (*sc->sc_bus_ops->lpc_pnp_enter)(tag);
68 }
69
70 static inline void
lpc_pnp_exit(lpctag_t tag)71 lpc_pnp_exit(lpctag_t tag)
72 {
73 gemini_lpc_softc_t *sc = tag;
74 return (*sc->sc_bus_ops->lpc_pnp_exit)(tag);
75 }
76
77 static inline void *
lpc_intr_establish(lpctag_t tag,uint intr,int ipl,int ist,int (* func)(void *),void * arg)78 lpc_intr_establish(lpctag_t tag, uint intr, int ipl, int ist,
79 int (*func)(void *), void *arg)
80 {
81 gemini_lpc_softc_t *sc = tag;
82 void *ih;
83
84 ih = (*sc->sc_bus_ops->lpc_intr_establish)
85 (tag, intr, ipl, ist, func, arg);
86
87 return ih;
88 }
89
90 static inline void
lpc_intr_disestablish(lpctag_t tag,void * ih)91 lpc_intr_disestablish(lpctag_t tag, void *ih)
92 {
93 gemini_lpc_softc_t *sc = tag;
94 return (*sc->sc_bus_ops->lpc_intr_disestablish)(tag, ih);
95 }
96
97
98
99
100
101 #endif /* _ARM_GEMINI_LPCVAR_H */
102