1*53931Shibler /* 2*53931Shibler * Copyright (c) 1991 University of Utah. 3*53931Shibler * Copyright (c) 1990 The Regents of the University of California. 4*53931Shibler * All rights reserved. 5*53931Shibler * 6*53931Shibler * This code is derived from software contributed to Berkeley by 7*53931Shibler * the Systems Programming Group of the University of Utah Computer 8*53931Shibler * Science Department. 9*53931Shibler * 10*53931Shibler * %sccs.include.redist.c% 11*53931Shibler * 12*53931Shibler * from: Utah $Hdr: grf_machdep.c 1.1 92/01/21 13*53931Shibler * 14*53931Shibler * @(#)grf_machdep.c 7.1 (Berkeley) 06/05/92 15*53931Shibler */ 16*53931Shibler 17*53931Shibler /* 18*53931Shibler * Graphics display driver for the HP300/400 DIO/DIO-II based machines. 19*53931Shibler * This is the hardware-dependent configuration portion of the driver. 20*53931Shibler */ 21*53931Shibler 22*53931Shibler #include "grf.h" 23*53931Shibler #if NGRF > 0 24*53931Shibler 25*53931Shibler #include "sys/param.h" 26*53931Shibler 27*53931Shibler #include "hp/dev/device.h" 28*53931Shibler #include "hp/dev/grfioctl.h" 29*53931Shibler #include "hp/dev/grfvar.h" 30*53931Shibler #include "hp/dev/grfreg.h" 31*53931Shibler 32*53931Shibler int grfprobe(); 33*53931Shibler struct driver grfdriver = { grfprobe, "grf" }; 34*53931Shibler 35*53931Shibler /* 36*53931Shibler * XXX called from ite console init routine. 37*53931Shibler * Does just what configure will do later but without printing anything. 38*53931Shibler */ 39*53931Shibler grfconfig() 40*53931Shibler { 41*53931Shibler register caddr_t addr; 42*53931Shibler register struct hp_hw *hw; 43*53931Shibler register struct hp_device *hd, *nhd; 44*53931Shibler 45*53931Shibler for (hw = sc_table; hw->hw_type; hw++) { 46*53931Shibler if (!HW_ISDEV(hw, D_BITMAP)) 47*53931Shibler continue; 48*53931Shibler /* 49*53931Shibler * Found one, now match up with a logical unit number 50*53931Shibler */ 51*53931Shibler nhd = NULL; 52*53931Shibler addr = hw->hw_kva; 53*53931Shibler for (hd = hp_dinit; hd->hp_driver; hd++) { 54*53931Shibler if (hd->hp_driver != &grfdriver || hd->hp_alive) 55*53931Shibler continue; 56*53931Shibler /* 57*53931Shibler * Wildcarded. If first, remember as possible match. 58*53931Shibler */ 59*53931Shibler if (hd->hp_addr == NULL) { 60*53931Shibler if (nhd == NULL) 61*53931Shibler nhd = hd; 62*53931Shibler continue; 63*53931Shibler } 64*53931Shibler /* 65*53931Shibler * Not wildcarded. 66*53931Shibler * If exact match done searching, else keep looking. 67*53931Shibler */ 68*53931Shibler if (sctova(hd->hp_addr) == addr) { 69*53931Shibler nhd = hd; 70*53931Shibler break; 71*53931Shibler } 72*53931Shibler } 73*53931Shibler /* 74*53931Shibler * Found a match, initialize 75*53931Shibler */ 76*53931Shibler if (nhd && grfinit(addr, nhd->hp_unit)) 77*53931Shibler nhd->hp_addr = addr; 78*53931Shibler } 79*53931Shibler } 80*53931Shibler 81*53931Shibler /* 82*53931Shibler * Normal init routine called by configure() code 83*53931Shibler */ 84*53931Shibler grfprobe(hd) 85*53931Shibler struct hp_device *hd; 86*53931Shibler { 87*53931Shibler struct grf_softc *gp = &grf_softc[hd->hp_unit]; 88*53931Shibler 89*53931Shibler if ((gp->g_flags & GF_ALIVE) == 0 && 90*53931Shibler !grfinit(hd->hp_addr, hd->hp_unit)) 91*53931Shibler return(0); 92*53931Shibler printf("grf%d: %d x %d ", hd->hp_unit, 93*53931Shibler gp->g_display.gd_dwidth, gp->g_display.gd_dheight); 94*53931Shibler if (gp->g_display.gd_colors == 2) 95*53931Shibler printf("monochrome"); 96*53931Shibler else 97*53931Shibler printf("%d color", gp->g_display.gd_colors); 98*53931Shibler printf(" %s display\n", gp->g_sw->gd_desc); 99*53931Shibler return(1); 100*53931Shibler } 101*53931Shibler 102*53931Shibler grfinit(addr, unit) 103*53931Shibler caddr_t addr; 104*53931Shibler { 105*53931Shibler struct grf_softc *gp = &grf_softc[unit]; 106*53931Shibler register struct grfsw *gsw; 107*53931Shibler struct grfreg *gr; 108*53931Shibler 109*53931Shibler gr = (struct grfreg *) addr; 110*53931Shibler if (gr->gr_id != GRFHWID) 111*53931Shibler return(0); 112*53931Shibler for (gsw = grfsw; gsw < &grfsw[ngrfsw]; gsw++) 113*53931Shibler if (gsw->gd_hwid == gr->gr_id2) 114*53931Shibler break; 115*53931Shibler if (gsw < &grfsw[ngrfsw] && (*gsw->gd_init)(gp, addr)) { 116*53931Shibler gp->g_sw = gsw; 117*53931Shibler gp->g_display.gd_id = gsw->gd_swid; 118*53931Shibler gp->g_flags = GF_ALIVE; 119*53931Shibler return(1); 120*53931Shibler } 121*53931Shibler return(0); 122*53931Shibler } 123*53931Shibler #endif 124