projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 9acfa6cd MH |
1 | /* |
| 2 | * Copyright (c) 1991 University of Utah. | |
| 030a8056 KB |
3 | * Copyright (c) 1990, 1993 |
| 4 | * The Regents of the University of California. All rights reserved. | |
| 9acfa6cd MH |
5 | * |
| 6 | * This code is derived from software contributed to Berkeley by | |
| 7 | * the Systems Programming Group of the University of Utah Computer | |
| 8 | * Science Department. | |
| 9 | * | |
| 10 | * %sccs.include.redist.c% | |
| 11 | * | |
| 12 | * from: Utah $Hdr: grf_machdep.c 1.1 92/01/21 | |
| 13 | * | |
| 2c0f281d | 14 | * @(#)grf_machdep.c 8.2 (Berkeley) %G% |
| 9acfa6cd MH |
15 | */ |
| 16 | ||
| 17 | /* | |
| 18 | * Graphics display driver for the HP300/400 DIO/DIO-II based machines. | |
| 19 | * This is the hardware-dependent configuration portion of the driver. | |
| 20 | */ | |
| 21 | ||
| 22 | #include "grf.h" | |
| 23 | #if NGRF > 0 | |
| 24 | ||
| 38a01dbe | 25 | #include <sys/param.h> |
| 9acfa6cd | 26 | |
| 38a01dbe KB |
27 | #include <hp/dev/device.h> |
| 28 | #include <hp/dev/grfioctl.h> | |
| 29 | #include <hp/dev/grfvar.h> | |
| 30 | #include <hp/dev/grfreg.h> | |
| 9acfa6cd MH |
31 | |
| 32 | int grfprobe(); | |
| 33 | struct driver grfdriver = { grfprobe, "grf" }; | |
| 34 | ||
| 35 | /* | |
| 36 | * XXX called from ite console init routine. | |
| 37 | * Does just what configure will do later but without printing anything. | |
| 38 | */ | |
| 39 | grfconfig() | |
| 40 | { | |
| 41 | register caddr_t addr; | |
| 42 | register struct hp_hw *hw; | |
| 43 | register struct hp_device *hd, *nhd; | |
| 44 | ||
| 45 | for (hw = sc_table; hw->hw_type; hw++) { | |
| 46 | if (!HW_ISDEV(hw, D_BITMAP)) | |
| 47 | continue; | |
| 48 | /* | |
| 49 | * Found one, now match up with a logical unit number | |
| 50 | */ | |
| 51 | nhd = NULL; | |
| 52 | addr = hw->hw_kva; | |
| 53 | for (hd = hp_dinit; hd->hp_driver; hd++) { | |
| 54 | if (hd->hp_driver != &grfdriver || hd->hp_alive) | |
| 55 | continue; | |
| 56 | /* | |
| 57 | * Wildcarded. If first, remember as possible match. | |
| 58 | */ | |
| 59 | if (hd->hp_addr == NULL) { | |
| 60 | if (nhd == NULL) | |
| 61 | nhd = hd; | |
| 62 | continue; | |
| 63 | } | |
| 64 | /* | |
| 65 | * Not wildcarded. | |
| 66 | * If exact match done searching, else keep looking. | |
| 67 | */ | |
| 68 | if (sctova(hd->hp_addr) == addr) { | |
| 69 | nhd = hd; | |
| 70 | break; | |
| 71 | } | |
| 72 | } | |
| 73 | /* | |
| 74 | * Found a match, initialize | |
| 75 | */ | |
| 76 | if (nhd && grfinit(addr, nhd->hp_unit)) | |
| 77 | nhd->hp_addr = addr; | |
| 78 | } | |
| 79 | } | |
| 80 | ||
| 81 | /* | |
| 82 | * Normal init routine called by configure() code | |
| 83 | */ | |
| 84 | grfprobe(hd) | |
| 85 | struct hp_device *hd; | |
| 86 | { | |
| 87 | struct grf_softc *gp = &grf_softc[hd->hp_unit]; | |
| 88 | ||
| 89 | if ((gp->g_flags & GF_ALIVE) == 0 && | |
| 90 | !grfinit(hd->hp_addr, hd->hp_unit)) | |
| 91 | return(0); | |
| 92 | printf("grf%d: %d x %d ", hd->hp_unit, | |
| 93 | gp->g_display.gd_dwidth, gp->g_display.gd_dheight); | |
| 94 | if (gp->g_display.gd_colors == 2) | |
| 95 | printf("monochrome"); | |
| 96 | else | |
| 97 | printf("%d color", gp->g_display.gd_colors); | |
| 98 | printf(" %s display\n", gp->g_sw->gd_desc); | |
| 99 | return(1); | |
| 100 | } | |
| 101 | ||
| 102 | grfinit(addr, unit) | |
| 103 | caddr_t addr; | |
| 2c0f281d | 104 | int unit; |
| 9acfa6cd MH |
105 | { |
| 106 | struct grf_softc *gp = &grf_softc[unit]; | |
| 107 | register struct grfsw *gsw; | |
| 108 | struct grfreg *gr; | |
| 109 | ||
| 110 | gr = (struct grfreg *) addr; | |
| 111 | if (gr->gr_id != GRFHWID) | |
| 112 | return(0); | |
| 113 | for (gsw = grfsw; gsw < &grfsw[ngrfsw]; gsw++) | |
| 114 | if (gsw->gd_hwid == gr->gr_id2) | |
| 115 | break; | |
| 116 | if (gsw < &grfsw[ngrfsw] && (*gsw->gd_init)(gp, addr)) { | |
| 117 | gp->g_sw = gsw; | |
| 118 | gp->g_display.gd_id = gsw->gd_swid; | |
| 119 | gp->g_flags = GF_ALIVE; | |
| 120 | return(1); | |
| 121 | } | |
| 122 | return(0); | |
| 123 | } | |
| 124 | #endif |