1 /* $NetBSD: vga_jazzio.c,v 1.18 2023/12/20 06:36:02 thorpej 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 1.18 2023/12/20 06:36:02 thorpej Exp $"); 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/device.h> 38 #include <uvm/uvm_extern.h> 39 40 #include <machine/autoconf.h> 41 #include <sys/bus.h> 42 #include <machine/wired_map.h> 43 44 #include <mips/pte.h> 45 46 #include <dev/ic/mc6845reg.h> 47 #include <dev/ic/pcdisplayvar.h> 48 #include <dev/ic/vgareg.h> 49 #include <dev/ic/vgavar.h> 50 51 #include <arc/jazz/jazziovar.h> 52 #include <arc/jazz/pica.h> 53 #include <arc/jazz/vga_jazziovar.h> 54 55 #include <dev/wscons/wsconsio.h> 56 #include <dev/wscons/wsdisplayvar.h> 57 58 #define WSDISPLAY_TYPE_JAZZVGA WSDISPLAY_TYPE_PCIVGA /* XXX not really */ 59 60 int vga_jazzio_init_tag(const char *, bus_space_tag_t *, bus_space_tag_t *); 61 paddr_t vga_jazzio_mmap(void *, off_t, int); 62 int vga_jazzio_match(device_t, cfdata_t, void *); 63 void vga_jazzio_attach(device_t, device_t, void *); 64 65 CFATTACH_DECL_NEW(vga_jazzio, sizeof(struct vga_softc), 66 vga_jazzio_match, vga_jazzio_attach, NULL, NULL); 67 68 const struct vga_funcs vga_jazzio_funcs = { 69 NULL, 70 vga_jazzio_mmap, 71 }; 72 73 int 74 vga_jazzio_init_tag(const char *name, bus_space_tag_t *iotp, 75 bus_space_tag_t *memtp) 76 { 77 static int initialized = 0; 78 static struct arc_bus_space vga_io, vga_mem; 79 80 if (strcmp(name, "ALI_S3") != 0) 81 return ENXIO; 82 83 if (!initialized) { 84 initialized = 1; 85 86 arc_bus_space_init(&vga_io, "vga_jazzio_io", 87 PICA_P_LOCAL_VIDEO_CTRL, PICA_V_LOCAL_VIDEO_CTRL, 88 0, PICA_S_LOCAL_VIDEO_CTRL); 89 arc_bus_space_init(&vga_mem, "vga_jazzio_mem", 90 PICA_P_LOCAL_VIDEO, PICA_V_LOCAL_VIDEO, 91 0, PICA_S_LOCAL_VIDEO); 92 93 arc_wired_enter_page(PICA_V_LOCAL_VIDEO_CTRL, 94 PICA_P_LOCAL_VIDEO_CTRL, 95 PICA_S_LOCAL_VIDEO_CTRL / 2); 96 arc_wired_enter_page( 97 PICA_V_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL/2, 98 PICA_P_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL/2, 99 PICA_S_LOCAL_VIDEO_CTRL / 2); 100 101 arc_wired_enter_page(PICA_V_LOCAL_VIDEO, 102 PICA_P_LOCAL_VIDEO, 103 PICA_S_LOCAL_VIDEO / 2); 104 arc_wired_enter_page( 105 PICA_V_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2, 106 PICA_P_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2, 107 PICA_S_LOCAL_VIDEO / 2); 108 #if 0 109 arc_wired_enter_page(PICA_V_EXTND_VIDEO_CTRL, 110 PICA_P_EXTND_VIDEO_CTRL, 111 PICA_S_EXTND_VIDEO_CTRL / 2); 112 arc_wired_enter_page( 113 PICA_V_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2, 114 PICA_P_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2, 115 PICA_S_EXTND_VIDEO_CTRL / 2); 116 #endif 117 } 118 *iotp = &vga_io; 119 *memtp = &vga_mem; 120 return 0; 121 } 122 123 paddr_t 124 vga_jazzio_mmap(void *v, off_t offset, int prot) 125 { 126 127 if (offset >= 0xa0000 && offset < 0xc0000) 128 return mips_btop(PICA_P_LOCAL_VIDEO + offset); 129 if (offset >= 0x0000 && offset < 0x10000) 130 return mips_btop(PICA_P_LOCAL_VIDEO_CTRL + offset); 131 if (offset >= 0x40000000 && offset < 0x40800000) 132 return mips_btop(PICA_P_LOCAL_VIDEO + offset - 0x40000000); 133 return -1; 134 } 135 136 int 137 vga_jazzio_match(device_t parent, cfdata_t match, void *aux) 138 { 139 struct jazzio_attach_args *ja = aux; 140 bus_space_tag_t iot, memt; 141 142 if (vga_jazzio_init_tag(ja->ja_name, &iot, &memt)) 143 return 0; 144 145 if (!vga_is_console(iot, WSDISPLAY_TYPE_JAZZVGA) && 146 !vga_common_probe(iot, memt)) 147 return 0; 148 149 return 1; 150 } 151 152 void 153 vga_jazzio_attach(device_t parent, device_t self, void *aux) 154 { 155 struct vga_softc *sc = device_private(self); 156 struct jazzio_attach_args *ja = aux; 157 bus_space_tag_t iot, memt; 158 159 aprint_normal("\n"); 160 161 sc->sc_dev = self; 162 vga_jazzio_init_tag(ja->ja_name, &iot, &memt); 163 vga_common_attach(sc, iot, memt, WSDISPLAY_TYPE_JAZZVGA, 0, 164 &vga_jazzio_funcs); 165 } 166 167 int 168 vga_jazzio_cnattach(char *name) 169 { 170 bus_space_tag_t iot, memt; 171 172 if (vga_jazzio_init_tag(name, &iot, &memt)) 173 return ENXIO; 174 return vga_cnattach(iot, memt, WSDISPLAY_TYPE_JAZZVGA, 1); 175 } 176
Indexes created Mon Sep 22 13:09:51 GMT 2025