vga_jazzio.c revision 1.16
1 /* $NetBSD: vga_jazzio.c,v 1.16 2011/03/06 14:58:44 tsutsui Exp $ */ 2 /* NetBSD: vga_isa.c,v 1.3 1998/06/12 18:45:48 drochner 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 (at) 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: vga_jazzio.c,v 1.16 2011/03/06 14:58:44 tsutsui Exp $"); 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/device.h> 38 #include <sys/malloc.h> 39 #include <uvm/uvm_extern.h> 40 41 #include <machine/autoconf.h> 42 #include <machine/bus.h> 43 #include <machine/wired_map.h> 44 45 #include <mips/pte.h> 46 47 #include <dev/ic/mc6845reg.h> 48 #include <dev/ic/pcdisplayvar.h> 49 #include <dev/ic/vgareg.h> 50 #include <dev/ic/vgavar.h> 51 52 #include <arc/jazz/jazziovar.h> 53 #include <arc/jazz/pica.h> 54 #include <arc/jazz/vga_jazziovar.h> 55 56 #include <dev/wscons/wsconsio.h> 57 #include <dev/wscons/wsdisplayvar.h> 58 59 #define WSDISPLAY_TYPE_JAZZVGA WSDISPLAY_TYPE_PCIVGA /* XXX not really */ 60 61 int vga_jazzio_init_tag(const char *, bus_space_tag_t *, bus_space_tag_t *); 62 paddr_t vga_jazzio_mmap(void *, off_t, int); 63 int vga_jazzio_match(device_t, cfdata_t, void *); 64 void vga_jazzio_attach(device_t, device_t, void *); 65 66 CFATTACH_DECL_NEW(vga_jazzio, sizeof(struct vga_softc), 67 vga_jazzio_match, vga_jazzio_attach, NULL, NULL); 68 69 const struct vga_funcs vga_jazzio_funcs = { 70 NULL, 71 vga_jazzio_mmap, 72 }; 73 74 int 75 vga_jazzio_init_tag(const char *name, bus_space_tag_t *iotp, 76 bus_space_tag_t *memtp) 77 { 78 static int initialized = 0; 79 static struct arc_bus_space vga_io, vga_mem; 80 81 if (strcmp(name, "ALI_S3") != 0) 82 return ENXIO; 83 84 if (!initialized) { 85 initialized = 1; 86 87 arc_bus_space_init(&vga_io, "vga_jazzio_io", 88 PICA_P_LOCAL_VIDEO_CTRL, PICA_V_LOCAL_VIDEO_CTRL, 89 0, PICA_S_LOCAL_VIDEO_CTRL); 90 arc_bus_space_init(&vga_mem, "vga_jazzio_mem", 91 PICA_P_LOCAL_VIDEO, PICA_V_LOCAL_VIDEO, 92 0, PICA_S_LOCAL_VIDEO); 93 94 arc_wired_enter_page(PICA_V_LOCAL_VIDEO_CTRL, 95 PICA_P_LOCAL_VIDEO_CTRL, 96 PICA_S_LOCAL_VIDEO_CTRL / 2); 97 arc_wired_enter_page( 98 PICA_V_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL/2, 99 PICA_P_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL/2, 100 PICA_S_LOCAL_VIDEO_CTRL / 2); 101 102 arc_wired_enter_page(PICA_V_LOCAL_VIDEO, 103 PICA_P_LOCAL_VIDEO, 104 PICA_S_LOCAL_VIDEO / 2); 105 arc_wired_enter_page( 106 PICA_V_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2, 107 PICA_P_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2, 108 PICA_S_LOCAL_VIDEO / 2); 109 #if 0 110 arc_wired_enter_page(PICA_V_EXTND_VIDEO_CTRL, 111 PICA_P_EXTND_VIDEO_CTRL, 112 PICA_S_EXTND_VIDEO_CTRL / 2); 113 arc_wired_enter_page( 114 PICA_V_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2, 115 PICA_P_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2, 116 PICA_S_EXTND_VIDEO_CTRL / 2); 117 #endif 118 } 119 *iotp = &vga_io; 120 *memtp = &vga_mem; 121 return 0; 122 } 123 124 paddr_t 125 vga_jazzio_mmap(void *v, off_t offset, int prot) 126 { 127 128 if (offset >= 0xa0000 && offset < 0xc0000) 129 return mips_btop(PICA_P_LOCAL_VIDEO + offset); 130 if (offset >= 0x0000 && offset < 0x10000) 131 return mips_btop(PICA_P_LOCAL_VIDEO_CTRL + offset); 132 if (offset >= 0x40000000 && offset < 0x40800000) 133 return mips_btop(PICA_P_LOCAL_VIDEO + offset - 0x40000000); 134 return -1; 135 } 136 137 int 138 vga_jazzio_match(device_t parent, cfdata_t match, void *aux) 139 { 140 struct jazzio_attach_args *ja = aux; 141 bus_space_tag_t iot, memt; 142 143 if (vga_jazzio_init_tag(ja->ja_name, &iot, &memt)) 144 return 0; 145 146 if (!vga_is_console(iot, WSDISPLAY_TYPE_JAZZVGA) && 147 !vga_common_probe(iot, memt)) 148 return 0; 149 150 return 1; 151 } 152 153 void 154 vga_jazzio_attach(device_t parent, device_t self, void *aux) 155 { 156 struct vga_softc *sc = device_private(self); 157 struct jazzio_attach_args *ja = aux; 158 bus_space_tag_t iot, memt; 159 160 aprint_normal("\n"); 161 162 sc->sc_dev = self; 163 vga_jazzio_init_tag(ja->ja_name, &iot, &memt); 164 vga_common_attach(sc, iot, memt, WSDISPLAY_TYPE_JAZZVGA, 0, 165 &vga_jazzio_funcs); 166 } 167 168 int 169 vga_jazzio_cnattach(char *name) 170 { 171 bus_space_tag_t iot, memt; 172 173 if (vga_jazzio_init_tag(name, &iot, &memt)) 174 return ENXIO; 175 return vga_cnattach(iot, memt, WSDISPLAY_TYPE_JAZZVGA, 1); 176 } 177
Indexes created Mon Sep 29 21:09:56 GMT 2025