plumvideo.c revision 1.6
1 /* $NetBSD: plumvideo.c,v 1.6 2000/04/03 03:35:37 sato Exp $ */ 2 3 /* 4 * Copyright (c) 1999, 2000, by UCHIYAMA Yasushi 5 * 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. The name of the developer may NOT be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 */ 28 #include "opt_tx39_debug.h" 29 #include "hpcfb.h" 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/device.h> 34 35 #include <dev/cons.h> /* consdev */ 36 37 #include <machine/bus.h> 38 #include <machine/intr.h> 39 40 #include <hpcmips/tx/tx39var.h> 41 #include <hpcmips/dev/plumvar.h> 42 #include <hpcmips/dev/plumicuvar.h> 43 #include <hpcmips/dev/plumpowervar.h> 44 #include <hpcmips/dev/plumvideoreg.h> 45 46 #include <machine/bootinfo.h> 47 48 #if NHPCFB > 0 49 #include <dev/wscons/wsconsio.h> 50 #include <arch/hpcmips/dev/hpcfbvar.h> 51 #include <arch/hpcmips/dev/hpcfbio.h> 52 #include <arch/hpcmips/dev/bivideovar.h> 53 #endif 54 #include <machine/autoconf.h> /* XXX */ 55 56 #ifdef PLUMVIDEODEBUG 57 int plumvideo_debug = 1; 58 #define DPRINTF(arg) if (plumvideo_debug) printf arg; 59 #define DPRINTFN(n, arg) if (plumvideo_debug > (n)) printf arg; 60 #else 61 #define DPRINTF(arg) 62 #define DPRINTFN(n, arg) 63 #endif 64 65 int plumvideo_match __P((struct device*, struct cfdata*, void*)); 66 void plumvideo_attach __P((struct device*, struct device*, void*)); 67 int plumvideo_print __P((void*, const char*)); 68 69 struct plumvideo_softc { 70 struct device sc_dev; 71 plum_chipset_tag_t sc_pc; 72 bus_space_tag_t sc_regt; 73 bus_space_handle_t sc_regh; 74 bus_space_tag_t sc_iot; 75 bus_space_handle_t sc_ioh; 76 }; 77 78 struct cfattach plumvideo_ca = { 79 sizeof(struct plumvideo_softc), plumvideo_match, plumvideo_attach 80 }; 81 82 struct fb_attach_args { 83 const char *fba_name; 84 }; 85 86 int plumvideo_init __P((struct plumvideo_softc*)); 87 #ifdef PLUMVIDEODEBUG 88 void plumvideo_dump __P((struct plumvideo_softc*)); 89 #endif 90 91 int 92 plumvideo_match(parent, cf, aux) 93 struct device *parent; 94 struct cfdata *cf; 95 void *aux; 96 { 97 /* 98 * VRAM area also uses as UHOSTC shared RAM. 99 */ 100 return 2; /* 1st attach group */ 101 } 102 103 void 104 plumvideo_attach(parent, self, aux) 105 struct device *parent; 106 struct device *self; 107 void *aux; 108 { 109 struct plum_attach_args *pa = aux; 110 struct plumvideo_softc *sc = (void*)self; 111 struct mainbus_attach_args ma; /* XXX */ 112 113 sc->sc_pc = pa->pa_pc; 114 sc->sc_regt = pa->pa_regt; 115 sc->sc_iot = pa->pa_iot; 116 117 /* 118 * map register area 119 */ 120 if (bus_space_map(sc->sc_regt, PLUM_VIDEO_REGBASE, 121 PLUM_VIDEO_REGSIZE, 0, &sc->sc_regh)) { 122 printf(": register map failed\n"); 123 return; 124 } 125 126 /* 127 * Power control 128 */ 129 #ifndef PLUMVIDEODEBUG 130 if (bootinfo->bi_cnuse & BI_CNUSE_SERIAL) { 131 /* LCD power on and display off */ 132 plum_power_disestablish(sc->sc_pc, PLUM_PWR_LCD); 133 /* power off V-RAM */ 134 plum_power_disestablish(sc->sc_pc, PLUM_PWR_EXTPW2); 135 /* power off LCD */ 136 plum_power_disestablish(sc->sc_pc, PLUM_PWR_EXTPW1); 137 /* power off RAMDAC */ 138 plum_power_disestablish(sc->sc_pc, PLUM_PWR_EXTPW0); 139 /* back-light off */ 140 plum_power_disestablish(sc->sc_pc, PLUM_PWR_BKL); 141 } else 142 #endif 143 { 144 /* LCD power on and display on */ 145 plum_power_establish(sc->sc_pc, PLUM_PWR_LCD); 146 /* supply power to V-RAM */ 147 plum_power_establish(sc->sc_pc, PLUM_PWR_EXTPW2); 148 /* supply power to LCD */ 149 plum_power_establish(sc->sc_pc, PLUM_PWR_EXTPW1); 150 /* back-light on */ 151 plum_power_establish(sc->sc_pc, PLUM_PWR_BKL); 152 } 153 154 /* 155 * Initialize LCD controller 156 * map V-RAM area. 157 * reinstall bootinfo structure. 158 * some OHCI shared-buffer hack. XXX 159 */ 160 if (plumvideo_init(sc) != 0) 161 return; 162 163 printf("\n"); 164 165 #ifdef PLUMVIDEODEBUG 166 if (plumvideo_debug) 167 plumvideo_dump(sc); 168 #endif 169 170 #if NHPCFB > 0 171 if(!cn_tab && hpcfb_cnattach(0, 0, 0, 0)) { 172 panic("plumvideo_attach: can't init fb console"); 173 } 174 /* Attach frame buffer device */ 175 ma.ma_name = "bivideo"; /* XXX */ 176 config_found(self, &ma, plumvideo_print); 177 #endif 178 } 179 180 int 181 plumvideo_print(aux, pnp) 182 void *aux; 183 const char *pnp; 184 { 185 return pnp ? QUIET : UNCONF; 186 } 187 188 int 189 plumvideo_init(sc) 190 struct plumvideo_softc *sc; 191 { 192 bus_space_tag_t regt = sc->sc_regt; 193 bus_space_handle_t regh = sc->sc_regh; 194 plumreg_t reg; 195 size_t vram_size; 196 int bpp, vram_pitch; 197 198 reg = plum_conf_read(regt, regh, PLUM_VIDEO_PLGMD_REG); 199 switch (reg & PLUM_VIDEO_PLGMD_MASK) { 200 case PLUM_VIDEO_PLGMD_16BPP: 201 #ifdef PLUM_BIG_OHCI_BUFFER 202 printf("(16bpp disabled) "); 203 /* FALLTHROUGH */ 204 #else /* PLUM_BIG_OHCI_BUFFER */ 205 bpp = 16; 206 break; 207 #endif /* PLUM_BIG_OHCI_BUFFER */ 208 default: 209 bootinfo->fb_type = BIFB_D8_FF; /* over ride */ 210 reg &= ~PLUM_VIDEO_PLGMD_MASK; 211 reg |= PLUM_VIDEO_PLGMD_8BPP; 212 plum_conf_write(regt, regh, PLUM_VIDEO_PLGMD_REG, reg); 213 /* FALLTHROUGH */ 214 case PLUM_VIDEO_PLGMD_8BPP: 215 bpp = 8; 216 break; 217 } 218 219 /* 220 * set line byte length to bootinfo and LCD controller. 221 */ 222 bootinfo->fb_line_bytes = (bootinfo->fb_width * bpp) / 8; 223 224 vram_pitch = bootinfo->fb_width / (8 / bpp); 225 plum_conf_write(regt, regh, PLUM_VIDEO_PLPIT1_REG, vram_pitch); 226 plum_conf_write(regt, regh, PLUM_VIDEO_PLPIT2_REG, 227 vram_pitch & PLUM_VIDEO_PLPIT2_MASK); 228 plum_conf_write(regt, regh, PLUM_VIDEO_PLOFS_REG, vram_pitch); 229 230 /* 231 * boot messages. 232 */ 233 printf("display mode: "); 234 reg = plum_conf_read(regt, regh, PLUM_VIDEO_PLGMD_REG); 235 switch (reg & PLUM_VIDEO_PLGMD_MASK) { 236 case PLUM_VIDEO_PLGMD_DISABLE: 237 printf("disabled "); 238 break; 239 case PLUM_VIDEO_PLGMD_8BPP: 240 printf("8bpp "); 241 break; 242 case PLUM_VIDEO_PLGMD_16BPP: 243 printf("16bpp "); 244 break; 245 } 246 247 /* 248 * calcurate frame buffer size. 249 */ 250 reg = plum_conf_read(regt, regh, PLUM_VIDEO_PLGMD_REG); 251 vram_size = (bootinfo->fb_width * bootinfo->fb_height * 252 (((reg & PLUM_VIDEO_PLGMD_MASK) == PLUM_VIDEO_PLGMD_16BPP) 253 ? 16 : 8)) / 8; 254 vram_size = mips_round_page(vram_size); 255 256 /* 257 * map V-RAM area. 258 */ 259 if (bus_space_map(sc->sc_iot, PLUM_VIDEO_VRAM_IOBASE, 260 vram_size, 0, &sc->sc_ioh)) { 261 printf(": V-RAM map failed\n"); 262 return (1); 263 } 264 265 bootinfo->fb_addr = (unsigned char *)sc->sc_ioh; 266 267 return (0); 268 } 269 270 #ifdef PLUMVIDEODEBUG 271 void 272 plumvideo_dump(sc) 273 struct plumvideo_softc *sc; 274 { 275 bus_space_tag_t regt = sc->sc_regt; 276 bus_space_handle_t regh = sc->sc_regh; 277 278 plumreg_t reg; 279 int i; 280 281 for (i = 0; i < 0x160; i += 4) { 282 reg = plum_conf_read(regt, regh, i); 283 printf("0x%03x %08x", i, reg); 284 bitdisp(reg); 285 } 286 } 287 #endif /* PLUMVIDEODEBUG */ 288
Indexes created Mon Sep 29 03:10:08 GMT 2025