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      1 /* $NetBSD: pckbcvar.h,v 1.22 2021/12/07 19:45:05 skrll Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1998
      5  *	Matthias Drochner.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  *
     27  */
     28 
     29 #ifndef _DEV_IC_PCKBCVAR_H_
     30 #define _DEV_IC_PCKBCVAR_H_
     31 
     32 #include <sys/callout.h>
     33 #include <sys/pmf.h>
     34 
     35 #include <dev/pckbport/pckbportvar.h>
     36 
     37 typedef void *pckbc_tag_t;
     38 typedef int pckbc_slot_t;
     39 #define	PCKBC_KBD_SLOT	0
     40 #define	PCKBC_AUX_SLOT	1
     41 #define	PCKBC_NSLOTS	2
     42 
     43 /* Simple cmd/slot ringbuffer structure */
     44 struct pckbc_rbuf_item {
     45 	int data;
     46 	int slot;
     47 };
     48 
     49 #define	PCKBC_RBUF_SIZE	32	/* number of rbuf entries */
     50 
     51 /*
     52  * external representation (pckbc_tag_t),
     53  * needed early for console operation
     54  */
     55 struct pckbc_internal {
     56 	pckbport_tag_t t_pt;
     57 	bus_space_tag_t t_iot;
     58 	bus_space_handle_t t_ioh_d, t_ioh_c; /* data port, cmd port */
     59 	bus_addr_t t_addr;
     60 	u_char t_cmdbyte; /* shadow */
     61 	int t_flags;
     62 #define	PCKBC_CANT_TRANSLATE	0x0001	/* can't translate to XT scancodes */
     63 #define	PCKBC_NEED_AUXWRITE	0x0002	/* need auxwrite command to find aux */
     64 
     65 	int t_haveaux; /* controller has an aux port */
     66 	struct pckbc_slotdata *t_slotdata[PCKBC_NSLOTS];
     67 
     68 	struct pckbc_softc *t_sc; /* back pointer */
     69 
     70 	struct callout t_cleanup;
     71 
     72 	struct pckbc_rbuf_item rbuf[PCKBC_RBUF_SIZE];
     73 	int rbuf_read;
     74 	int rbuf_write;
     75 };
     76 
     77 typedef void (*pckbc_inputfcn)(void *, int);
     78 
     79 /*
     80  * State per device.
     81  */
     82 struct pckbc_softc {
     83 	device_t sc_dv;
     84 	struct pckbc_internal *id;
     85 
     86 	void (*intr_establish)(struct pckbc_softc *, pckbc_slot_t);
     87 };
     88 
     89 extern const char * const pckbc_slot_names[];
     90 extern struct pckbc_internal pckbc_consdata;
     91 extern int pckbc_console_attached;
     92 
     93 /* These functions are sometimes called by match routines */
     94 int pckbc_send_cmd(bus_space_tag_t, bus_space_handle_t, u_char);
     95 int pckbc_poll_data1(void *, pckbc_slot_t);
     96 
     97 /* More normal calls from attach routines */
     98 void pckbc_attach(struct pckbc_softc *);
     99 int pckbc_cnattach(bus_space_tag_t, bus_addr_t, bus_size_t, pckbc_slot_t, int);
    100 int pckbc_is_console(bus_space_tag_t, bus_addr_t);
    101 int pckbcintr(void *);
    102 int pckbcintr_hard(void *);
    103 void pckbcintr_soft(void *);
    104 
    105 /* md hook for use without mi wscons */
    106 int pckbc_machdep_cnattach(pckbc_tag_t, pckbc_slot_t);
    107 
    108 /* power management */
    109 bool pckbc_resume(device_t, const pmf_qual_t *);
    110 
    111 #endif /* _DEV_IC_PCKBCVAR_H_ */
    112