sys/arch/arc/jazz/pccons_jazzio.c

   1 /* $NetBSD: pccons_jazzio.c,v 1.8 2008/07/05 08:46:25 tsutsui Exp $ */
   2 /* NetBSD: vga_isa.c,v 1.4 2000/08/14 20:14:51 thorpej Exp  */
   3
   4 /*
   5  * Copyright (c) 1995, 1996 Carnegie-Mellon University.
   6  * All rights reserved.
   7  *
   8  * Author: Chris G. Demetriou
   9  *
  10  * Permission to use, copy, modify and distribute this software and
  11  * its documentation is hereby granted, provided that both the copyright
  12  * notice and this permission notice appear in all copies of the
  13  * software, derivative works or modified versions, and any portions
  14  * thereof, and that both notices appear in supporting documentation.
  15  *
  16  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  17  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
  18  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  19  *
  20  * Carnegie Mellon requests users of this software to return to
  21  *
  22  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  23  *  School of Computer Science
  24  *  Carnegie Mellon University
  25  *  Pittsburgh PA 15213-3890
  26  *
  27  * any improvements or extensions that they make and grant Carnegie the
  28  * rights to redistribute these changes.
  29  */
  30
  31 #include <sys/cdefs.h>
  32 __KERNEL_RCSID(0, "$NetBSD: pccons_jazzio.c,v 1.8 2008/07/05 08:46:25 tsutsui Exp $");
  33
  34 #include <sys/param.h>
  35 #include <sys/systm.h>
  36 #include <sys/device.h>
  37 #include <uvm/uvm_extern.h>
  38
  39 #include <machine/autoconf.h>
  40 #include <machine/bus.h>
  41 #include <machine/wired_map.h>
  42
  43 #include <mips/pte.h>
  44
  45 #include <arc/dev/pcconsvar.h>
  46 #include <arc/jazz/jazziovar.h>
  47 #include <arc/jazz/pica.h>
  48 #include <arc/jazz/pccons_jazziovar.h>
  49
  50 #define PCKBD_INTR 6    /* XXX - should be obtained from firmware */
  51
  52 static int      pccons_jazzio_match(device_t, cfdata_t, void *);
  53 static void     pccons_jazzio_attach(device_t, device_t, void *);
  54
  55 CFATTACH_DECL_NEW(pc_jazzio, sizeof(struct pc_softc),
  56     pccons_jazzio_match, pccons_jazzio_attach, NULL, NULL);
  57
  58 /*
  59  * chipset-dependent pccons configuration
  60  */
  61
  62 static void pccons_jazzio_init(void);
  63
  64 struct pccons_config pccons_jazzio_conf = {
  65         0x3b4, 0xb0000, /* mono: iobase, memaddr */
  66         0x3d4, 0xb8000, /* cga:  iobase, memaddr */
  67         PICA_SYS_KBD + 0x61, PICA_SYS_KBD + 0x60, /* kbdc: cmdport, dataport */
  68         pccons_jazzio_init
  69 };
  70
  71 static void
  72 pccons_jazzio_init(void)
  73 {
  74
  75         /* nothing to do */
  76 }
  77
  78 static int pccons_jazzio_init_tag(const char *, bus_space_tag_t *,
  79     bus_space_tag_t *);
  80
  81 int
  82 pccons_jazzio_init_tag(const char *name, bus_space_tag_t *iotp,
  83     bus_space_tag_t *memtp)
  84 {
  85         static int initialized = 0;
  86         static struct arc_bus_space vga_io, vga_mem;
  87
  88         if (strcmp(name, "ALI_S3") != 0)
  89                 return ENXIO;
  90
  91         if (!initialized) {
  92                 initialized = 1;
  93
  94                 arc_bus_space_init(&vga_io, "vga_jazzio_io",
  95                     PICA_P_LOCAL_VIDEO_CTRL, PICA_V_LOCAL_VIDEO_CTRL,
  96                     0, PICA_S_LOCAL_VIDEO_CTRL);
  97                 arc_bus_space_init(&vga_mem, "vga_jazzio_mem",
  98                     PICA_P_LOCAL_VIDEO, PICA_V_LOCAL_VIDEO,
  99                     0, PICA_S_LOCAL_VIDEO);
 100
 101                 arc_wired_enter_page(
 102                     PICA_V_LOCAL_VIDEO_CTRL,
 103                     PICA_P_LOCAL_VIDEO_CTRL,
 104                     PICA_S_LOCAL_VIDEO_CTRL / 2);
 105                 arc_wired_enter_page(
 106                     PICA_V_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL / 2,
 107                     PICA_P_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL / 2,
 108                     PICA_S_LOCAL_VIDEO_CTRL / 2);
 109
 110                 arc_wired_enter_page(PICA_V_LOCAL_VIDEO,
 111                     PICA_P_LOCAL_VIDEO,
 112                     PICA_S_LOCAL_VIDEO / 2);
 113                 arc_wired_enter_page(
 114                     PICA_V_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2,
 115                     PICA_P_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2,
 116                     PICA_S_LOCAL_VIDEO / 2);
 117 #if 0
 118                 arc_wired_enter_page(PICA_V_EXTND_VIDEO_CTRL,
 119                     PICA_P_EXTND_VIDEO_CTRL,
 120                     PICA_S_EXTND_VIDEO_CTRL / 2);
 121                 arc_wired_enter_page(
 122                     PICA_V_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2,
 123                     PICA_P_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2,
 124                     PICA_S_EXTND_VIDEO_CTRL / 2);
 125 #endif
 126         }
 127         *iotp = &vga_io;
 128         *memtp = &vga_mem;
 129         return 0;
 130 }
 131
 132 static int
 133 pccons_jazzio_match(device_t parent, cfdata_t cf, void *aux)
 134 {
 135         struct jazzio_attach_args *ja = aux;
 136         bus_space_tag_t crt_iot, crt_memt;
 137
 138         if (pccons_jazzio_init_tag(ja->ja_name, &crt_iot, &crt_memt))
 139                 return 0;
 140
 141         if (!pccons_common_match(crt_iot, crt_memt, ja->ja_bust,
 142             &pccons_jazzio_conf))
 143                 return 0;
 144
 145         return 1;
 146 }
 147
 148 static void
 149 pccons_jazzio_attach(device_t parent, device_t self, void *aux)
 150 {
 151         struct pc_softc *sc = device_private(self);
 152         struct jazzio_attach_args *ja = aux;
 153         bus_space_tag_t crt_iot, crt_memt;
 154
 155         pccons_jazzio_init_tag(ja->ja_name, &crt_iot, &crt_memt);
 156         jazzio_intr_establish(PCKBD_INTR, pcintr, sc);
 157         pccons_common_attach(sc, crt_iot, crt_memt, ja->ja_bust,
 158             &pccons_jazzio_conf);
 159 }
 160
 161 int
 162 pccons_jazzio_cnattach(char *name, bus_space_tag_t kbd_iot)
 163 {
 164         bus_space_tag_t crt_iot, crt_memt;
 165
 166         if (pccons_jazzio_init_tag(name, &crt_iot, &crt_memt))
 167                 return ENXIO;
 168         pccons_common_cnattach(crt_iot, crt_memt, kbd_iot,
 169             &pccons_jazzio_conf);
 170         return 0;
 171 }