1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 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 as 12 * the first lines of this file unmodified. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 */ 29 30#include <sys/cdefs.h> 31#include "opt_syscons.h" 32 33#include <sys/param.h> 34#include <sys/systm.h> 35#include <sys/malloc.h> 36#include <sys/fbio.h> 37#include <sys/consio.h> 38 39#include <machine/md_var.h> 40#include <machine/bus.h> 41 42#include <dev/fb/fbreg.h> 43#include <dev/syscons/syscons.h> 44 45#define vtb_wrap(vtb, at, offset) \ 46 (((at) + (offset) + (vtb)->vtb_size)%(vtb)->vtb_size) 47 48void 49sc_vtb_init(sc_vtb_t *vtb, int type, int cols, int rows, void *buf, int wait) 50{ 51 vtb->vtb_flags = 0; 52 vtb->vtb_type = type; 53 vtb->vtb_cols = cols; 54 vtb->vtb_rows = rows; 55 vtb->vtb_size = cols*rows; 56 vtb->vtb_buffer = 0; 57 vtb->vtb_tail = 0; 58 59 switch (type) { 60 case VTB_MEMORY: 61 case VTB_RINGBUFFER: 62 if ((buf == NULL) && (cols*rows != 0)) { 63 vtb->vtb_buffer = 64 (vm_offset_t)malloc(cols*rows*sizeof(u_int16_t), 65 M_DEVBUF, 66 (wait) ? M_WAITOK : M_NOWAIT); 67 if (vtb->vtb_buffer != 0) { 68 bzero((void *)sc_vtb_pointer(vtb, 0), 69 cols*rows*sizeof(u_int16_t)); 70 vtb->vtb_flags |= VTB_ALLOCED; 71 } 72 } else { 73 vtb->vtb_buffer = (vm_offset_t)buf; 74 } 75 vtb->vtb_flags |= VTB_VALID; 76 break; 77 case VTB_FRAMEBUFFER: 78 vtb->vtb_buffer = (vm_offset_t)buf; 79 vtb->vtb_flags |= VTB_VALID; 80 break; 81 default: 82 break; 83 } 84} 85 86void 87sc_vtb_destroy(sc_vtb_t *vtb) 88{ 89 vm_offset_t p; 90 91 vtb->vtb_cols = 0; 92 vtb->vtb_rows = 0; 93 vtb->vtb_size = 0; 94 vtb->vtb_tail = 0; 95 96 p = vtb->vtb_buffer; 97 vtb->vtb_buffer = 0; 98 switch (vtb->vtb_type) { 99 case VTB_MEMORY: 100 case VTB_RINGBUFFER: 101 if ((vtb->vtb_flags & VTB_ALLOCED) && (p != 0)) 102 free((void *)p, M_DEVBUF); 103 break; 104 default: 105 break; 106 } 107 vtb->vtb_flags = 0; 108 vtb->vtb_type = VTB_INVALID; 109} 110 111size_t 112sc_vtb_size(int cols, int rows) 113{ 114 return (size_t)(cols*rows*sizeof(u_int16_t)); 115} 116 117int 118sc_vtb_getc(sc_vtb_t *vtb, int at) 119{ 120 if (vtb->vtb_type == VTB_FRAMEBUFFER) 121 return (readw(sc_vtb_pointer(vtb, at)) & 0x00ff); 122 else 123 return (*(u_int16_t *)sc_vtb_pointer(vtb, at) & 0x00ff); 124} 125 126int 127sc_vtb_geta(sc_vtb_t *vtb, int at) 128{ 129 if (vtb->vtb_type == VTB_FRAMEBUFFER) 130 return (readw(sc_vtb_pointer(vtb, at)) & 0xff00); 131 else 132 return (*(u_int16_t *)sc_vtb_pointer(vtb, at) & 0xff00); 133} 134 135void 136sc_vtb_putc(sc_vtb_t *vtb, int at, int c, int a) 137{ 138 if (vtb->vtb_type == VTB_FRAMEBUFFER) 139 writew(sc_vtb_pointer(vtb, at), a | c); 140 else 141 *(u_int16_t *)sc_vtb_pointer(vtb, at) = a | c; 142} 143 144vm_offset_t 145sc_vtb_putchar(sc_vtb_t *vtb, vm_offset_t p, int c, int a) 146{ 147 if (vtb->vtb_type == VTB_FRAMEBUFFER) 148 writew(p, a | c); 149 else 150 *(u_int16_t *)p = a | c; 151 return (p + sizeof(u_int16_t)); 152} 153 154vm_offset_t 155sc_vtb_pointer(sc_vtb_t *vtb, int at) 156{ 157 return (vtb->vtb_buffer + sizeof(u_int16_t)*(at)); 158} 159 160int 161sc_vtb_pos(sc_vtb_t *vtb, int pos, int offset) 162{ 163 return ((pos + offset + vtb->vtb_size)%vtb->vtb_size); 164} 165 166void 167sc_vtb_clear(sc_vtb_t *vtb, int c, int attr) 168{ 169 if (vtb->vtb_type == VTB_FRAMEBUFFER) 170 fillw_io(attr | c, sc_vtb_pointer(vtb, 0), vtb->vtb_size); 171 else 172 fillw(attr | c, (void *)sc_vtb_pointer(vtb, 0), vtb->vtb_size); 173} 174 175void 176sc_vtb_copy(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int to, int count) 177{ 178 /* XXX if both are VTB_VRAMEBUFFER... */ 179 if (vtb2->vtb_type == VTB_FRAMEBUFFER) 180 bcopy_toio(sc_vtb_pointer(vtb1, from), 181 sc_vtb_pointer(vtb2, to), 182 count*sizeof(u_int16_t)); 183 else if (vtb1->vtb_type == VTB_FRAMEBUFFER) 184 bcopy_fromio(sc_vtb_pointer(vtb1, from), 185 sc_vtb_pointer(vtb2, to), 186 count*sizeof(u_int16_t)); 187 else 188 bcopy((void *)sc_vtb_pointer(vtb1, from), 189 (void *)sc_vtb_pointer(vtb2, to), 190 count*sizeof(u_int16_t)); 191} 192 193void 194sc_vtb_append(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int count) 195{ 196 int len; 197 198 if (vtb2->vtb_type != VTB_RINGBUFFER) 199 return; 200 201 while (count > 0) { 202 len = imin(count, vtb2->vtb_size - vtb2->vtb_tail); 203 if (vtb1->vtb_type == VTB_FRAMEBUFFER) 204 bcopy_fromio(sc_vtb_pointer(vtb1, from), 205 sc_vtb_pointer(vtb2, vtb2->vtb_tail), 206 len*sizeof(u_int16_t)); 207 else 208 bcopy((void *)sc_vtb_pointer(vtb1, from), 209 (void *)sc_vtb_pointer(vtb2, vtb2->vtb_tail), 210 len*sizeof(u_int16_t)); 211 from += len; 212 count -= len; 213 vtb2->vtb_tail = vtb_wrap(vtb2, vtb2->vtb_tail, len); 214 } 215} 216 217void 218sc_vtb_seek(sc_vtb_t *vtb, int pos) 219{ 220 vtb->vtb_tail = pos%vtb->vtb_size; 221} 222 223void 224sc_vtb_erase(sc_vtb_t *vtb, int at, int count, int c, int attr) 225{ 226 if (at + count > vtb->vtb_size) 227 count = vtb->vtb_size - at; 228 if (vtb->vtb_type == VTB_FRAMEBUFFER) 229 fillw_io(attr | c, sc_vtb_pointer(vtb, at), count); 230 else 231 fillw(attr | c, (void *)sc_vtb_pointer(vtb, at), count); 232} 233 234void 235sc_vtb_move(sc_vtb_t *vtb, int from, int to, int count) 236{ 237 if (from + count > vtb->vtb_size) 238 count = vtb->vtb_size - from; 239 if (to + count > vtb->vtb_size) 240 count = vtb->vtb_size - to; 241 if (count <= 0) 242 return; 243 if (vtb->vtb_type == VTB_FRAMEBUFFER) 244 bcopy_io(sc_vtb_pointer(vtb, from), 245 sc_vtb_pointer(vtb, to), count*sizeof(u_int16_t)); 246 else 247 bcopy((void *)sc_vtb_pointer(vtb, from), 248 (void *)sc_vtb_pointer(vtb, to), count*sizeof(u_int16_t)); 249} 250 251void 252sc_vtb_delete(sc_vtb_t *vtb, int at, int count, int c, int attr) 253{ 254 int len; 255 256 if (at + count > vtb->vtb_size) 257 count = vtb->vtb_size - at; 258 len = vtb->vtb_size - at - count; 259 if (len > 0) { 260 if (vtb->vtb_type == VTB_FRAMEBUFFER) 261 bcopy_io(sc_vtb_pointer(vtb, at + count), 262 sc_vtb_pointer(vtb, at), 263 len*sizeof(u_int16_t)); 264 else 265 bcopy((void *)sc_vtb_pointer(vtb, at + count), 266 (void *)sc_vtb_pointer(vtb, at), 267 len*sizeof(u_int16_t)); 268 } 269 if (vtb->vtb_type == VTB_FRAMEBUFFER) 270 fillw_io(attr | c, sc_vtb_pointer(vtb, at + len), 271 vtb->vtb_size - at - len); 272 else 273 fillw(attr | c, (void *)sc_vtb_pointer(vtb, at + len), 274 vtb->vtb_size - at - len); 275} 276 277void 278sc_vtb_ins(sc_vtb_t *vtb, int at, int count, int c, int attr) 279{ 280 if (at + count > vtb->vtb_size) 281 count = vtb->vtb_size - at; 282 else { 283 if (vtb->vtb_type == VTB_FRAMEBUFFER) 284 bcopy_io(sc_vtb_pointer(vtb, at), 285 sc_vtb_pointer(vtb, at + count), 286 (vtb->vtb_size - at - count)*sizeof(u_int16_t)); 287 else 288 bcopy((void *)sc_vtb_pointer(vtb, at), 289 (void *)sc_vtb_pointer(vtb, at + count), 290 (vtb->vtb_size - at - count)*sizeof(u_int16_t)); 291 } 292 if (vtb->vtb_type == VTB_FRAMEBUFFER) 293 fillw_io(attr | c, sc_vtb_pointer(vtb, at), count); 294 else 295 fillw(attr | c, (void *)sc_vtb_pointer(vtb, at), count); 296} 297