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gemini_lpcvar.h revision 1.2.4.2 
      1 /*	$NetBSD: gemini_lpcvar.h,v 1.2.4.2 2009/01/17 13:27:52 mjf 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 <machine/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 	struct device			sc_dev;
     40 	bus_addr_t			sc_addr;
     41 	bus_size_t			sc_size;
     42 	int				sc_intr;
     43 	bus_space_tag_t			sc_iot;
     44 	bus_space_handle_t		sc_ioh;
     45 	void			       *sc_lpchctag;
     46 	struct gemini_lpc_bus_ops      *sc_bus_ops;
     47 } gemini_lpc_softc_t;
     48 
     49 
     50 static inline uint8_t
     51 lpc_pnp_read(lpctag_t tag, int ldn, uint off)
     52 {
     53 	gemini_lpc_softc_t *sc = tag;
     54 	return (*sc->sc_bus_ops->lpc_pnp_read)(tag, ldn, off);
     55 }
     56 
     57 static inline void
     58 lpc_pnp_write(lpctag_t tag, int ldn, uint off, uint8_t val)
     59 {
     60 	gemini_lpc_softc_t *sc = tag;
     61 	return (*sc->sc_bus_ops->lpc_pnp_write)(tag, ldn, off, val);
     62 }
     63 
     64 static inline void
     65 lpc_pnp_enter(lpctag_t tag)
     66 {
     67 	gemini_lpc_softc_t *sc = tag;
     68 	return (*sc->sc_bus_ops->lpc_pnp_enter)(tag);
     69 }
     70 
     71 static inline void
     72 lpc_pnp_exit(lpctag_t tag)
     73 {
     74 	gemini_lpc_softc_t *sc = tag;
     75 	return (*sc->sc_bus_ops->lpc_pnp_exit)(tag);
     76 }
     77 
     78 static inline void *
     79 lpc_intr_establish(lpctag_t tag, uint intr, int ipl, int ist,
     80 	int (*func)(void *), void *arg)
     81 {
     82 	gemini_lpc_softc_t *sc = tag;
     83 	void *ih;
     84 
     85 	ih = (*sc->sc_bus_ops->lpc_intr_establish)
     86 		(tag, intr, ipl, ist, func, arg);
     87 
     88 	return ih;
     89 }
     90 
     91 static inline void
     92 lpc_intr_disestablish(lpctag_t tag, void *ih)
     93 {
     94 	gemini_lpc_softc_t *sc = tag;
     95 	return (*sc->sc_bus_ops->lpc_intr_disestablish)(tag, ih);
     96 }
     97 
     98 
     99 
    100 
    101 
    102 #endif	/* _ARM_GEMINI_LPCVAR_H */
    103