sys/arch/arm/gemini/gemini_lpcvar.h

   1 /*      $NetBSD: gemini_lpcvar.h,v 1.1 2008/11/09 09:15:42 cliff 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 */