749 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2/*3 * newport_con.c: Abscon for newport hardware4 * 5 * (C) 1998 Thomas Bogendoerfer (tsbogend@alpha.franken.de)6 * (C) 1999 Ulf Carlsson (ulfc@thepuffingruop.com)7 * 8 * This driver is based on sgicons.c and cons_newport.9 * 10 * Copyright (C) 1996 David S. Miller (davem@davemloft.net)11 * Copyright (C) 1997 Miguel de Icaza (miguel@nuclecu.unam.mx)12 */13#include <linux/init.h>14#include <linux/kernel.h>15#include <linux/errno.h>16#include <linux/kd.h>17#include <linux/selection.h>18#include <linux/console.h>19#include <linux/vt_kern.h>20#include <linux/mm.h>21#include <linux/module.h>22#include <linux/slab.h>23 24#include <asm/io.h>25#include <linux/uaccess.h>26#include <asm/page.h>27#include <asm/gio_device.h>28 29#include <video/newport.h>30 31#include <linux/linux_logo.h>32#include <linux/font.h>33 34#define NEWPORT_LEN 0x1000035 36#define FONT_DATA ((unsigned char *)font_vga_8x16.data)37 38static unsigned char *font_data[MAX_NR_CONSOLES];39 40static struct newport_regs *npregs;41static unsigned long newport_addr;42 43static int logo_active;44static int topscan;45static int xcurs_correction = 29;46static int newport_xsize;47static int newport_ysize;48static int newport_has_init;49 50static int newport_set_def_font(int unit, struct console_font *op);51 52#define BMASK(c) (c << 24)53 54#define RENDER(regs, cp) do { \55(regs)->go.zpattern = BMASK((cp)[0x0]); (regs)->go.zpattern = BMASK((cp)[0x1]); \56(regs)->go.zpattern = BMASK((cp)[0x2]); (regs)->go.zpattern = BMASK((cp)[0x3]); \57(regs)->go.zpattern = BMASK((cp)[0x4]); (regs)->go.zpattern = BMASK((cp)[0x5]); \58(regs)->go.zpattern = BMASK((cp)[0x6]); (regs)->go.zpattern = BMASK((cp)[0x7]); \59(regs)->go.zpattern = BMASK((cp)[0x8]); (regs)->go.zpattern = BMASK((cp)[0x9]); \60(regs)->go.zpattern = BMASK((cp)[0xa]); (regs)->go.zpattern = BMASK((cp)[0xb]); \61(regs)->go.zpattern = BMASK((cp)[0xc]); (regs)->go.zpattern = BMASK((cp)[0xd]); \62(regs)->go.zpattern = BMASK((cp)[0xe]); (regs)->go.zpattern = BMASK((cp)[0xf]); \63} while(0)64 65#define TESTVAL 0xdeadbeef66#define XSTI_TO_FXSTART(val) (((val) & 0xffff) << 11)67 68static inline void newport_render_background(int xstart, int ystart,69 int xend, int yend, int ci)70{71 newport_wait(npregs);72 npregs->set.wrmask = 0xffffffff;73 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |74 NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX75 | NPORT_DMODE0_STOPY);76 npregs->set.colori = ci;77 npregs->set.xystarti =78 (xstart << 16) | ((ystart + topscan) & 0x3ff);79 npregs->go.xyendi =80 ((xend + 7) << 16) | ((yend + topscan + 15) & 0x3ff);81}82 83static inline void newport_init_cmap(void)84{85 unsigned short i;86 87 for (i = 0; i < 16; i++) {88 newport_bfwait(npregs);89 newport_cmap_setaddr(npregs, color_table[i]);90 newport_cmap_setrgb(npregs,91 default_red[i],92 default_grn[i], default_blu[i]);93 }94}95 96static const struct linux_logo *newport_show_logo(void)97{98#ifdef CONFIG_LOGO_SGI_CLUT22499 const struct linux_logo *logo = fb_find_logo(8);100 const unsigned char *clut;101 const unsigned char *data;102 unsigned long i;103 104 if (!logo)105 return NULL;106 clut = logo->clut;107 data = logo->data;108 109 for (i = 0; i < logo->clutsize; i++) {110 newport_bfwait(npregs);111 newport_cmap_setaddr(npregs, i + 0x20);112 newport_cmap_setrgb(npregs, clut[0], clut[1], clut[2]);113 clut += 3;114 }115 116 newport_wait(npregs);117 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |118 NPORT_DMODE0_CHOST);119 120 npregs->set.xystarti = ((newport_xsize - logo->width) << 16) | (0);121 npregs->set.xyendi = ((newport_xsize - 1) << 16);122 newport_wait(npregs);123 124 for (i = 0; i < logo->width*logo->height; i++)125 npregs->go.hostrw0 = *data++ << 24;126 127 return logo;128#else129 return NULL;130#endif /* CONFIG_LOGO_SGI_CLUT224 */131}132 133static inline void newport_clear_screen(int xstart, int ystart, int xend,134 int yend, int ci)135{136 if (logo_active)137 return;138 139 newport_wait(npregs);140 npregs->set.wrmask = 0xffffffff;141 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |142 NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX143 | NPORT_DMODE0_STOPY);144 npregs->set.colori = ci;145 npregs->set.xystarti = (xstart << 16) | ystart;146 npregs->go.xyendi = (xend << 16) | yend;147}148 149static inline void newport_clear_lines(int ystart, int yend, int ci)150{151 ystart = ((ystart << 4) + topscan) & 0x3ff;152 yend = ((yend << 4) + topscan + 15) & 0x3ff;153 newport_clear_screen(0, ystart, 1280 + 63, yend, ci);154}155 156static void newport_reset(void)157{158 unsigned short treg;159 int i;160 161 newport_wait(npregs);162 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);163 newport_vc2_set(npregs, VC2_IREG_CONTROL,164 (treg | VC2_CTRL_EVIDEO));165 166 treg = newport_vc2_get(npregs, VC2_IREG_CENTRY);167 newport_vc2_set(npregs, VC2_IREG_RADDR, treg);168 npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM |169 NPORT_DMODE_W2 | VC2_PROTOCOL);170 for (i = 0; i < 128; i++) {171 newport_bfwait(npregs);172 if (i == 92 || i == 94)173 npregs->set.dcbdata0.byshort.s1 = 0xff00;174 else175 npregs->set.dcbdata0.byshort.s1 = 0x0000;176 }177 178 newport_init_cmap();179 180 /* turn off popup plane */181 npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL |182 XM9_CRS_CONFIG | NPORT_DMODE_W1);183 npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE;184 npregs->set.dcbmode = (DCB_XMAP1 | R_DCB_XMAP9_PROTOCOL |185 XM9_CRS_CONFIG | NPORT_DMODE_W1);186 npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE;187 188 topscan = 0;189 npregs->cset.topscan = 0x3ff;190 npregs->cset.xywin = (4096 << 16) | 4096;191 192 /* Clear the screen. */193 newport_clear_screen(0, 0, 1280 + 63, 1024, 0);194}195 196/*197 * calculate the actual screen size by reading198 * the video timing out of the VC2199 */200static void newport_get_screensize(void)201{202 int i, cols;203 unsigned short ventry, treg;204 unsigned short linetable[128]; /* should be enough */205 206 ventry = newport_vc2_get(npregs, VC2_IREG_VENTRY);207 newport_vc2_set(npregs, VC2_IREG_RADDR, ventry);208 npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM |209 NPORT_DMODE_W2 | VC2_PROTOCOL);210 for (i = 0; i < 128; i++) {211 newport_bfwait(npregs);212 linetable[i] = npregs->set.dcbdata0.byshort.s1;213 }214 215 newport_xsize = newport_ysize = 0;216 for (i = 0; i < ARRAY_SIZE(linetable) - 1 && linetable[i + 1]; i += 2) {217 cols = 0;218 newport_vc2_set(npregs, VC2_IREG_RADDR, linetable[i]);219 npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM |220 NPORT_DMODE_W2 | VC2_PROTOCOL);221 do {222 newport_bfwait(npregs);223 treg = npregs->set.dcbdata0.byshort.s1;224 if ((treg & 1) == 0)225 cols += (treg >> 7) & 0xfe;226 if ((treg & 0x80) == 0) {227 newport_bfwait(npregs);228 treg = npregs->set.dcbdata0.byshort.s1;229 }230 } while ((treg & 0x8000) == 0);231 if (cols) {232 if (cols > newport_xsize)233 newport_xsize = cols;234 newport_ysize += linetable[i + 1];235 }236 }237 printk("NG1: Screensize %dx%d\n", newport_xsize, newport_ysize);238}239 240static void newport_get_revisions(void)241{242 unsigned int tmp;243 unsigned int board_rev;244 unsigned int rex3_rev;245 unsigned int vc2_rev;246 unsigned int cmap_rev;247 unsigned int xmap9_rev;248 unsigned int bt445_rev;249 unsigned int bitplanes;250 251 rex3_rev = npregs->cset.status & NPORT_STAT_VERS;252 253 npregs->set.dcbmode = (DCB_CMAP0 | NCMAP_PROTOCOL |254 NCMAP_REGADDR_RREG | NPORT_DMODE_W1);255 tmp = npregs->set.dcbdata0.bybytes.b3;256 cmap_rev = tmp & 7;257 board_rev = (tmp >> 4) & 7;258 bitplanes = ((board_rev > 1) && (tmp & 0x80)) ? 8 : 24;259 260 npregs->set.dcbmode = (DCB_CMAP1 | NCMAP_PROTOCOL |261 NCMAP_REGADDR_RREG | NPORT_DMODE_W1);262 tmp = npregs->set.dcbdata0.bybytes.b3;263 if ((tmp & 7) < cmap_rev)264 cmap_rev = (tmp & 7);265 266 vc2_rev = (newport_vc2_get(npregs, VC2_IREG_CONFIG) >> 5) & 7;267 268 npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL |269 XM9_CRS_REVISION | NPORT_DMODE_W1);270 xmap9_rev = npregs->set.dcbdata0.bybytes.b3 & 7;271 272 npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL |273 BT445_CSR_ADDR_REG | NPORT_DMODE_W1);274 npregs->set.dcbdata0.bybytes.b3 = BT445_REVISION_REG;275 npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL |276 BT445_CSR_REVISION | NPORT_DMODE_W1);277 bt445_rev = (npregs->set.dcbdata0.bybytes.b3 >> 4) - 0x0a;278 279#define L(a) (char)('A'+(a))280 printk281 ("NG1: Revision %d, %d bitplanes, REX3 revision %c, VC2 revision %c, xmap9 revision %c, cmap revision %c, bt445 revision %c\n",282 board_rev, bitplanes, L(rex3_rev), L(vc2_rev), L(xmap9_rev),283 L(cmap_rev ? (cmap_rev + 1) : 0), L(bt445_rev));284#undef L285 286 if (board_rev == 3) /* I don't know all affected revisions */287 xcurs_correction = 21;288}289 290static void newport_exit(void)291{292 int i;293 294 /* free memory used by user font */295 for (i = 0; i < MAX_NR_CONSOLES; i++)296 newport_set_def_font(i, NULL);297}298 299/* Can't be __init, do_take_over_console may call it later */300static const char *newport_startup(void)301{302 int i;303 304 npregs->cset.config = NPORT_CFG_GD0;305 306 if (newport_wait(npregs))307 goto out_unmap;308 309 npregs->set.xstarti = TESTVAL;310 if (npregs->set._xstart.word != XSTI_TO_FXSTART(TESTVAL))311 goto out_unmap;312 313 for (i = 0; i < MAX_NR_CONSOLES; i++)314 font_data[i] = FONT_DATA;315 316 newport_reset();317 newport_get_revisions();318 newport_get_screensize();319 newport_has_init = 1;320 321 return "SGI Newport";322 323out_unmap:324 return NULL;325}326 327static void newport_init(struct vc_data *vc, bool init)328{329 int cols, rows;330 331 cols = newport_xsize / 8;332 rows = newport_ysize / 16;333 vc->vc_can_do_color = 1;334 if (init) {335 vc->vc_cols = cols;336 vc->vc_rows = rows;337 } else338 vc_resize(vc, cols, rows);339}340 341static void newport_deinit(struct vc_data *c)342{343 if (!con_is_bound(&newport_con) && newport_has_init) {344 newport_exit();345 newport_has_init = 0;346 }347}348 349static void newport_clear(struct vc_data *vc, unsigned int sy, unsigned int sx,350 unsigned int width)351{352 int xend = ((sx + width) << 3) - 1;353 int ystart = ((sy << 4) + topscan) & 0x3ff;354 int yend = (((sy + 1) << 4) + topscan - 1) & 0x3ff;355 356 if (logo_active)357 return;358 359 if (ystart < yend) {360 newport_clear_screen(sx << 3, ystart, xend, yend,361 (vc->state.color & 0xf0) >> 4);362 } else {363 newport_clear_screen(sx << 3, ystart, xend, 1023,364 (vc->state.color & 0xf0) >> 4);365 newport_clear_screen(sx << 3, 0, xend, yend,366 (vc->state.color & 0xf0) >> 4);367 }368}369 370static void newport_putc(struct vc_data *vc, u16 charattr, unsigned int ypos,371 unsigned int xpos)372{373 unsigned char *p;374 375 p = &font_data[vc->vc_num][(charattr & 0xff) << 4];376 charattr = (charattr >> 8) & 0xff;377 xpos <<= 3;378 ypos <<= 4;379 380 newport_render_background(xpos, ypos, xpos, ypos,381 (charattr & 0xf0) >> 4);382 383 /* Set the color and drawing mode. */384 newport_wait(npregs);385 npregs->set.colori = charattr & 0xf;386 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |387 NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB |388 NPORT_DMODE0_L32);389 390 /* Set coordinates for bitmap operation. */391 npregs->set.xystarti = (xpos << 16) | ((ypos + topscan) & 0x3ff);392 npregs->set.xyendi = ((xpos + 7) << 16);393 newport_wait(npregs);394 395 /* Go, baby, go... */396 RENDER(npregs, p);397}398 399static void newport_putcs(struct vc_data *vc, const u16 *s,400 unsigned int count, unsigned int ypos,401 unsigned int xpos)402{403 unsigned char *p;404 unsigned int i;405 u16 charattr;406 407 charattr = (scr_readw(s) >> 8) & 0xff;408 409 xpos <<= 3;410 ypos <<= 4;411 412 if (!logo_active)413 /* Clear the area behing the string */414 newport_render_background(xpos, ypos,415 xpos + ((count - 1) << 3), ypos,416 (charattr & 0xf0) >> 4);417 418 newport_wait(npregs);419 420 /* Set the color and drawing mode. */421 npregs->set.colori = charattr & 0xf;422 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |423 NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB |424 NPORT_DMODE0_L32);425 426 for (i = 0; i < count; i++, xpos += 8) {427 p = &font_data[vc->vc_num][(scr_readw(s++) & 0xff) << 4];428 429 newport_wait(npregs);430 431 /* Set coordinates for bitmap operation. */432 npregs->set.xystarti =433 (xpos << 16) | ((ypos + topscan) & 0x3ff);434 npregs->set.xyendi = ((xpos + 7) << 16);435 436 /* Go, baby, go... */437 RENDER(npregs, p);438 }439}440 441static void newport_cursor(struct vc_data *vc, bool enable)442{443 unsigned short treg;444 int xcurs, ycurs;445 446 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);447 448 if (!enable) {449 newport_vc2_set(npregs, VC2_IREG_CONTROL,450 (treg & ~(VC2_CTRL_ECDISP)));451 return;452 }453 454 newport_vc2_set(npregs, VC2_IREG_CONTROL, (treg | VC2_CTRL_ECDISP));455 xcurs = (vc->vc_pos - vc->vc_visible_origin) / 2;456 ycurs = ((xcurs / vc->vc_cols) << 4) + 31;457 xcurs = ((xcurs % vc->vc_cols) << 3) + xcurs_correction;458 newport_vc2_set(npregs, VC2_IREG_CURSX, xcurs);459 newport_vc2_set(npregs, VC2_IREG_CURSY, ycurs);460}461 462static bool newport_switch(struct vc_data *vc)463{464 static int logo_drawn = 0;465 466 topscan = 0;467 npregs->cset.topscan = 0x3ff;468 469 if (!logo_drawn) {470 if (newport_show_logo()) {471 logo_drawn = 1;472 logo_active = 1;473 }474 }475 476 return true;477}478 479static bool newport_blank(struct vc_data *c, enum vesa_blank_mode blank,480 bool mode_switch)481{482 unsigned short treg;483 484 if (blank == VESA_NO_BLANKING) {485 /* unblank console */486 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);487 newport_vc2_set(npregs, VC2_IREG_CONTROL,488 (treg | VC2_CTRL_EDISP));489 } else {490 /* blank console */491 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);492 newport_vc2_set(npregs, VC2_IREG_CONTROL,493 (treg & ~(VC2_CTRL_EDISP)));494 }495 496 return true;497}498 499static int newport_set_font(int unit, const struct console_font *op,500 unsigned int vpitch)501{502 int w = op->width;503 int h = op->height;504 int size = h * op->charcount;505 int i;506 unsigned char *new_data, *data = op->data, *p;507 508 /* ladis: when I grow up, there will be a day... and more sizes will509 * be supported ;-) */510 if ((w != 8) || (h != 16) || (vpitch != 32)511 || (op->charcount != 256 && op->charcount != 512))512 return -EINVAL;513 514 if (!(new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size,515 GFP_USER))) return -ENOMEM;516 517 new_data += FONT_EXTRA_WORDS * sizeof(int);518 FNTSIZE(new_data) = size;519 FNTCHARCNT(new_data) = op->charcount;520 REFCOUNT(new_data) = 0; /* usage counter */521 FNTSUM(new_data) = 0;522 523 p = new_data;524 for (i = 0; i < op->charcount; i++) {525 memcpy(p, data, h);526 data += 32;527 p += h;528 }529 530 /* check if font is already used by other console */531 for (i = 0; i < MAX_NR_CONSOLES; i++) {532 if (font_data[i] != FONT_DATA533 && FNTSIZE(font_data[i]) == size534 && !memcmp(font_data[i], new_data, size)) {535 kfree(new_data - FONT_EXTRA_WORDS * sizeof(int));536 /* current font is the same as the new one */537 if (i == unit)538 return 0;539 new_data = font_data[i];540 break;541 }542 }543 /* old font is user font */544 if (font_data[unit] != FONT_DATA) {545 if (--REFCOUNT(font_data[unit]) == 0)546 kfree(font_data[unit] -547 FONT_EXTRA_WORDS * sizeof(int));548 }549 REFCOUNT(new_data)++;550 font_data[unit] = new_data;551 552 return 0;553}554 555static int newport_set_def_font(int unit, struct console_font *op)556{557 if (font_data[unit] != FONT_DATA) {558 if (--REFCOUNT(font_data[unit]) == 0)559 kfree(font_data[unit] -560 FONT_EXTRA_WORDS * sizeof(int));561 font_data[unit] = FONT_DATA;562 }563 564 return 0;565}566 567static int newport_font_default(struct vc_data *vc, struct console_font *op,568 const char *name)569{570 return newport_set_def_font(vc->vc_num, op);571}572 573static int newport_font_set(struct vc_data *vc, const struct console_font *font,574 unsigned int vpitch, unsigned int flags)575{576 return newport_set_font(vc->vc_num, font, vpitch);577}578 579static bool newport_scroll(struct vc_data *vc, unsigned int t, unsigned int b,580 enum con_scroll dir, unsigned int lines)581{582 int count, x, y;583 unsigned short *s, *d;584 unsigned short chattr;585 586 logo_active = 0; /* it's time to disable the logo now.. */587 588 if (t == 0 && b == vc->vc_rows) {589 if (dir == SM_UP) {590 topscan = (topscan + (lines << 4)) & 0x3ff;591 newport_clear_lines(vc->vc_rows - lines,592 vc->vc_rows - 1,593 (vc->state.color & 0xf0) >> 4);594 } else {595 topscan = (topscan + (-lines << 4)) & 0x3ff;596 newport_clear_lines(0, lines - 1,597 (vc->state.color & 0xf0) >> 4);598 }599 npregs->cset.topscan = (topscan - 1) & 0x3ff;600 return false;601 }602 603 count = (b - t - lines) * vc->vc_cols;604 if (dir == SM_UP) {605 x = 0;606 y = t;607 s = (unsigned short *) (vc->vc_origin +608 vc->vc_size_row * (t + lines));609 d = (unsigned short *) (vc->vc_origin +610 vc->vc_size_row * t);611 while (count--) {612 chattr = scr_readw(s++);613 if (chattr != scr_readw(d)) {614 newport_putc(vc, chattr, y, x);615 scr_writew(chattr, d);616 }617 d++;618 if (++x == vc->vc_cols) {619 x = 0;620 y++;621 }622 }623 d = (unsigned short *) (vc->vc_origin +624 vc->vc_size_row * (b - lines));625 x = 0;626 y = b - lines;627 for (count = 0; count < (lines * vc->vc_cols); count++) {628 if (scr_readw(d) != vc->vc_video_erase_char) {629 newport_putc(vc, vc->vc_video_erase_char,630 y, x);631 scr_writew(vc->vc_video_erase_char, d);632 }633 d++;634 if (++x == vc->vc_cols) {635 x = 0;636 y++;637 }638 }639 } else {640 x = vc->vc_cols - 1;641 y = b - 1;642 s = (unsigned short *) (vc->vc_origin +643 vc->vc_size_row * (b - lines) - 2);644 d = (unsigned short *) (vc->vc_origin +645 vc->vc_size_row * b - 2);646 while (count--) {647 chattr = scr_readw(s--);648 if (chattr != scr_readw(d)) {649 newport_putc(vc, chattr, y, x);650 scr_writew(chattr, d);651 }652 d--;653 if (x-- == 0) {654 x = vc->vc_cols - 1;655 y--;656 }657 }658 d = (unsigned short *) (vc->vc_origin +659 vc->vc_size_row * t);660 x = 0;661 y = t;662 for (count = 0; count < (lines * vc->vc_cols); count++) {663 if (scr_readw(d) != vc->vc_video_erase_char) {664 newport_putc(vc, vc->vc_video_erase_char,665 y, x);666 scr_writew(vc->vc_video_erase_char, d);667 }668 d++;669 if (++x == vc->vc_cols) {670 x = 0;671 y++;672 }673 }674 }675 return true;676}677 678static void newport_save_screen(struct vc_data *vc) { }679 680const struct consw newport_con = {681 .owner = THIS_MODULE,682 .con_startup = newport_startup,683 .con_init = newport_init,684 .con_deinit = newport_deinit,685 .con_clear = newport_clear,686 .con_putc = newport_putc,687 .con_putcs = newport_putcs,688 .con_cursor = newport_cursor,689 .con_scroll = newport_scroll,690 .con_switch = newport_switch,691 .con_blank = newport_blank,692 .con_font_set = newport_font_set,693 .con_font_default = newport_font_default,694 .con_save_screen = newport_save_screen695};696 697static int newport_probe(struct gio_device *dev,698 const struct gio_device_id *id)699{700 int err;701 702 if (!dev->resource.start)703 return -EINVAL;704 705 if (npregs)706 return -EBUSY; /* we only support one Newport as console */707 708 newport_addr = dev->resource.start + 0xF0000;709 if (!request_mem_region(newport_addr, NEWPORT_LEN, "Newport"))710 return -ENODEV;711 712 npregs = (struct newport_regs *)/* ioremap cannot fail */713 ioremap(newport_addr, sizeof(struct newport_regs));714 console_lock();715 err = do_take_over_console(&newport_con, 0, MAX_NR_CONSOLES - 1, 1);716 console_unlock();717 718 if (err) {719 iounmap((void *)npregs);720 release_mem_region(newport_addr, NEWPORT_LEN);721 }722 return err;723}724 725static void newport_remove(struct gio_device *dev)726{727 give_up_console(&newport_con);728 iounmap((void *)npregs);729 release_mem_region(newport_addr, NEWPORT_LEN);730}731 732static struct gio_device_id newport_ids[] = {733 { .id = 0x7e },734 { .id = 0xff }735};736 737MODULE_ALIAS("gio:7e");738 739static struct gio_driver newport_driver = {740 .name = "newport",741 .id_table = newport_ids,742 .probe = newport_probe,743 .remove = newport_remove,744};745module_driver(newport_driver, gio_register_driver, gio_unregister_driver);746 747MODULE_DESCRIPTION("SGI Newport console driver");748MODULE_LICENSE("GPL");749