1 // SPDX-License-Identifier: GPL-2.0-only
3 * newport_con.c: Abscon for newport hardware
5 * (C) 1998 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
6 * (C) 1999 Ulf Carlsson (ulfc@thepuffingruop.com)
8 * This driver is based on sgicons.c and cons_newport.
10 * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
11 * Copyright (C) 1997 Miguel de Icaza (miguel@nuclecu.unam.mx)
13 #include <linux/init.h>
14 #include <linux/kernel.h>
15 #include <linux/errno.h>
17 #include <linux/selection.h>
18 #include <linux/console.h>
19 #include <linux/vt_kern.h>
21 #include <linux/module.h>
22 #include <linux/slab.h>
25 #include <linux/uaccess.h>
27 #include <asm/gio_device.h>
29 #include <video/newport.h>
31 #include <linux/linux_logo.h>
32 #include <linux/font.h>
34 #define NEWPORT_LEN 0x10000
36 #define FONT_DATA ((unsigned char *)font_vga_8x16.data)
38 static unsigned char *font_data[MAX_NR_CONSOLES];
40 static struct newport_regs *npregs;
41 static unsigned long newport_addr;
43 static int logo_active;
45 static int xcurs_correction = 29;
46 static int newport_xsize;
47 static int newport_ysize;
48 static int newport_has_init;
50 static int newport_set_def_font(int unit, struct console_font *op);
52 #define BMASK(c) (c << 24)
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]); \
65 #define TESTVAL 0xdeadbeef
66 #define XSTI_TO_FXSTART(val) (((val) & 0xffff) << 11)
68 static inline void newport_render_background(int xstart, int ystart,
69 int xend, int yend, int ci)
72 npregs->set.wrmask = 0xffffffff;
73 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
74 NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX
75 | NPORT_DMODE0_STOPY);
76 npregs->set.colori = ci;
77 npregs->set.xystarti =
78 (xstart << 16) | ((ystart + topscan) & 0x3ff);
80 ((xend + 7) << 16) | ((yend + topscan + 15) & 0x3ff);
83 static inline void newport_init_cmap(void)
87 for (i = 0; i < 16; i++) {
88 newport_bfwait(npregs);
89 newport_cmap_setaddr(npregs, color_table[i]);
90 newport_cmap_setrgb(npregs,
92 default_grn[i], default_blu[i]);
96 static const struct linux_logo *newport_show_logo(void)
98 #ifdef CONFIG_LOGO_SGI_CLUT224
99 const struct linux_logo *logo = fb_find_logo(8);
100 const unsigned char *clut;
101 const unsigned char *data;
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]);
116 newport_wait(npregs);
117 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
120 npregs->set.xystarti = ((newport_xsize - logo->width) << 16) | (0);
121 npregs->set.xyendi = ((newport_xsize - 1) << 16);
122 newport_wait(npregs);
124 for (i = 0; i < logo->width*logo->height; i++)
125 npregs->go.hostrw0 = *data++ << 24;
128 #endif /* CONFIG_LOGO_SGI_CLUT224 */
131 static inline void newport_clear_screen(int xstart, int ystart, int xend,
137 newport_wait(npregs);
138 npregs->set.wrmask = 0xffffffff;
139 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
140 NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX
141 | NPORT_DMODE0_STOPY);
142 npregs->set.colori = ci;
143 npregs->set.xystarti = (xstart << 16) | ystart;
144 npregs->go.xyendi = (xend << 16) | yend;
147 static inline void newport_clear_lines(int ystart, int yend, int ci)
149 ystart = ((ystart << 4) + topscan) & 0x3ff;
150 yend = ((yend << 4) + topscan + 15) & 0x3ff;
151 newport_clear_screen(0, ystart, 1280 + 63, yend, ci);
154 static void newport_reset(void)
159 newport_wait(npregs);
160 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
161 newport_vc2_set(npregs, VC2_IREG_CONTROL,
162 (treg | VC2_CTRL_EVIDEO));
164 treg = newport_vc2_get(npregs, VC2_IREG_CENTRY);
165 newport_vc2_set(npregs, VC2_IREG_RADDR, treg);
166 npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM |
167 NPORT_DMODE_W2 | VC2_PROTOCOL);
168 for (i = 0; i < 128; i++) {
169 newport_bfwait(npregs);
170 if (i == 92 || i == 94)
171 npregs->set.dcbdata0.byshort.s1 = 0xff00;
173 npregs->set.dcbdata0.byshort.s1 = 0x0000;
178 /* turn off popup plane */
179 npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL |
180 XM9_CRS_CONFIG | NPORT_DMODE_W1);
181 npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE;
182 npregs->set.dcbmode = (DCB_XMAP1 | R_DCB_XMAP9_PROTOCOL |
183 XM9_CRS_CONFIG | NPORT_DMODE_W1);
184 npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE;
187 npregs->cset.topscan = 0x3ff;
188 npregs->cset.xywin = (4096 << 16) | 4096;
190 /* Clear the screen. */
191 newport_clear_screen(0, 0, 1280 + 63, 1024, 0);
195 * calculate the actual screen size by reading
196 * the video timing out of the VC2
198 static void newport_get_screensize(void)
201 unsigned short ventry, treg;
202 unsigned short linetable[128]; /* should be enough */
204 ventry = newport_vc2_get(npregs, VC2_IREG_VENTRY);
205 newport_vc2_set(npregs, VC2_IREG_RADDR, ventry);
206 npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM |
207 NPORT_DMODE_W2 | VC2_PROTOCOL);
208 for (i = 0; i < 128; i++) {
209 newport_bfwait(npregs);
210 linetable[i] = npregs->set.dcbdata0.byshort.s1;
213 newport_xsize = newport_ysize = 0;
214 for (i = 0; i < ARRAY_SIZE(linetable) - 1 && linetable[i + 1]; i += 2) {
216 newport_vc2_set(npregs, VC2_IREG_RADDR, linetable[i]);
217 npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM |
218 NPORT_DMODE_W2 | VC2_PROTOCOL);
220 newport_bfwait(npregs);
221 treg = npregs->set.dcbdata0.byshort.s1;
223 cols += (treg >> 7) & 0xfe;
224 if ((treg & 0x80) == 0) {
225 newport_bfwait(npregs);
226 treg = npregs->set.dcbdata0.byshort.s1;
228 } while ((treg & 0x8000) == 0);
230 if (cols > newport_xsize)
231 newport_xsize = cols;
232 newport_ysize += linetable[i + 1];
235 printk("NG1: Screensize %dx%d\n", newport_xsize, newport_ysize);
238 static void newport_get_revisions(void)
241 unsigned int board_rev;
242 unsigned int rex3_rev;
243 unsigned int vc2_rev;
244 unsigned int cmap_rev;
245 unsigned int xmap9_rev;
246 unsigned int bt445_rev;
247 unsigned int bitplanes;
249 rex3_rev = npregs->cset.status & NPORT_STAT_VERS;
251 npregs->set.dcbmode = (DCB_CMAP0 | NCMAP_PROTOCOL |
252 NCMAP_REGADDR_RREG | NPORT_DMODE_W1);
253 tmp = npregs->set.dcbdata0.bybytes.b3;
255 board_rev = (tmp >> 4) & 7;
256 bitplanes = ((board_rev > 1) && (tmp & 0x80)) ? 8 : 24;
258 npregs->set.dcbmode = (DCB_CMAP1 | NCMAP_PROTOCOL |
259 NCMAP_REGADDR_RREG | NPORT_DMODE_W1);
260 tmp = npregs->set.dcbdata0.bybytes.b3;
261 if ((tmp & 7) < cmap_rev)
262 cmap_rev = (tmp & 7);
264 vc2_rev = (newport_vc2_get(npregs, VC2_IREG_CONFIG) >> 5) & 7;
266 npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL |
267 XM9_CRS_REVISION | NPORT_DMODE_W1);
268 xmap9_rev = npregs->set.dcbdata0.bybytes.b3 & 7;
270 npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL |
271 BT445_CSR_ADDR_REG | NPORT_DMODE_W1);
272 npregs->set.dcbdata0.bybytes.b3 = BT445_REVISION_REG;
273 npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL |
274 BT445_CSR_REVISION | NPORT_DMODE_W1);
275 bt445_rev = (npregs->set.dcbdata0.bybytes.b3 >> 4) - 0x0a;
277 #define L(a) (char)('A'+(a))
279 ("NG1: Revision %d, %d bitplanes, REX3 revision %c, VC2 revision %c, xmap9 revision %c, cmap revision %c, bt445 revision %c\n",
280 board_rev, bitplanes, L(rex3_rev), L(vc2_rev), L(xmap9_rev),
281 L(cmap_rev ? (cmap_rev + 1) : 0), L(bt445_rev));
284 if (board_rev == 3) /* I don't know all affected revisions */
285 xcurs_correction = 21;
288 static void newport_exit(void)
292 /* free memory used by user font */
293 for (i = 0; i < MAX_NR_CONSOLES; i++)
294 newport_set_def_font(i, NULL);
297 /* Can't be __init, do_take_over_console may call it later */
298 static const char *newport_startup(void)
302 npregs->cset.config = NPORT_CFG_GD0;
304 if (newport_wait(npregs))
307 npregs->set.xstarti = TESTVAL;
308 if (npregs->set._xstart.word != XSTI_TO_FXSTART(TESTVAL))
311 for (i = 0; i < MAX_NR_CONSOLES; i++)
312 font_data[i] = FONT_DATA;
315 newport_get_revisions();
316 newport_get_screensize();
317 newport_has_init = 1;
319 return "SGI Newport";
325 static void newport_init(struct vc_data *vc, int init)
329 cols = newport_xsize / 8;
330 rows = newport_ysize / 16;
331 vc->vc_can_do_color = 1;
336 vc_resize(vc, cols, rows);
339 static void newport_deinit(struct vc_data *c)
341 if (!con_is_bound(&newport_con) && newport_has_init) {
343 newport_has_init = 0;
347 static void newport_clear(struct vc_data *vc, int sy, int sx, int height,
350 int xend = ((sx + width) << 3) - 1;
351 int ystart = ((sy << 4) + topscan) & 0x3ff;
352 int yend = (((sy + height) << 4) + topscan - 1) & 0x3ff;
358 newport_clear_screen(sx << 3, ystart, xend, yend,
359 (vc->state.color & 0xf0) >> 4);
361 newport_clear_screen(sx << 3, ystart, xend, 1023,
362 (vc->state.color & 0xf0) >> 4);
363 newport_clear_screen(sx << 3, 0, xend, yend,
364 (vc->state.color & 0xf0) >> 4);
368 static void newport_putc(struct vc_data *vc, int charattr, int ypos,
373 p = &font_data[vc->vc_num][(charattr & 0xff) << 4];
374 charattr = (charattr >> 8) & 0xff;
378 newport_render_background(xpos, ypos, xpos, ypos,
379 (charattr & 0xf0) >> 4);
381 /* Set the color and drawing mode. */
382 newport_wait(npregs);
383 npregs->set.colori = charattr & 0xf;
384 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
385 NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB |
388 /* Set coordinates for bitmap operation. */
389 npregs->set.xystarti = (xpos << 16) | ((ypos + topscan) & 0x3ff);
390 npregs->set.xyendi = ((xpos + 7) << 16);
391 newport_wait(npregs);
393 /* Go, baby, go... */
397 static void newport_putcs(struct vc_data *vc, const unsigned short *s,
398 int count, int ypos, int xpos)
404 charattr = (scr_readw(s) >> 8) & 0xff;
410 /* Clear the area behing the string */
411 newport_render_background(xpos, ypos,
412 xpos + ((count - 1) << 3), ypos,
413 (charattr & 0xf0) >> 4);
415 newport_wait(npregs);
417 /* Set the color and drawing mode. */
418 npregs->set.colori = charattr & 0xf;
419 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
420 NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB |
423 for (i = 0; i < count; i++, xpos += 8) {
424 p = &font_data[vc->vc_num][(scr_readw(s++) & 0xff) << 4];
426 newport_wait(npregs);
428 /* Set coordinates for bitmap operation. */
429 npregs->set.xystarti =
430 (xpos << 16) | ((ypos + topscan) & 0x3ff);
431 npregs->set.xyendi = ((xpos + 7) << 16);
433 /* Go, baby, go... */
438 static void newport_cursor(struct vc_data *vc, int mode)
445 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
446 newport_vc2_set(npregs, VC2_IREG_CONTROL,
447 (treg & ~(VC2_CTRL_ECDISP)));
452 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
453 newport_vc2_set(npregs, VC2_IREG_CONTROL,
454 (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);
463 static int newport_switch(struct vc_data *vc)
465 static int logo_drawn = 0;
468 npregs->cset.topscan = 0x3ff;
471 if (newport_show_logo()) {
480 static int newport_blank(struct vc_data *c, int blank, int mode_switch)
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));
491 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
492 newport_vc2_set(npregs, VC2_IREG_CONTROL,
493 (treg & ~(VC2_CTRL_EDISP)));
498 static int newport_set_font(int unit, struct console_font *op)
502 int size = h * op->charcount;
504 unsigned char *new_data, *data = op->data, *p;
506 /* ladis: when I grow up, there will be a day... and more sizes will
507 * be supported ;-) */
508 if ((w != 8) || (h != 16)
509 || (op->charcount != 256 && op->charcount != 512))
512 if (!(new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size,
513 GFP_USER))) return -ENOMEM;
515 new_data += FONT_EXTRA_WORDS * sizeof(int);
516 FNTSIZE(new_data) = size;
517 FNTCHARCNT(new_data) = op->charcount;
518 REFCOUNT(new_data) = 0; /* usage counter */
519 FNTSUM(new_data) = 0;
522 for (i = 0; i < op->charcount; i++) {
528 /* check if font is already used by other console */
529 for (i = 0; i < MAX_NR_CONSOLES; i++) {
530 if (font_data[i] != FONT_DATA
531 && FNTSIZE(font_data[i]) == size
532 && !memcmp(font_data[i], new_data, size)) {
533 kfree(new_data - FONT_EXTRA_WORDS * sizeof(int));
534 /* current font is the same as the new one */
537 new_data = font_data[i];
541 /* old font is user font */
542 if (font_data[unit] != FONT_DATA) {
543 if (--REFCOUNT(font_data[unit]) == 0)
544 kfree(font_data[unit] -
545 FONT_EXTRA_WORDS * sizeof(int));
547 REFCOUNT(new_data)++;
548 font_data[unit] = new_data;
553 static int newport_set_def_font(int unit, struct console_font *op)
555 if (font_data[unit] != FONT_DATA) {
556 if (--REFCOUNT(font_data[unit]) == 0)
557 kfree(font_data[unit] -
558 FONT_EXTRA_WORDS * sizeof(int));
559 font_data[unit] = FONT_DATA;
565 static int newport_font_default(struct vc_data *vc, struct console_font *op, char *name)
567 return newport_set_def_font(vc->vc_num, op);
570 static int newport_font_set(struct vc_data *vc, struct console_font *font, unsigned flags)
572 return newport_set_font(vc->vc_num, font);
575 static bool newport_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
576 enum con_scroll dir, unsigned int lines)
579 unsigned short *s, *d;
580 unsigned short chattr;
582 logo_active = 0; /* it's time to disable the logo now.. */
584 if (t == 0 && b == vc->vc_rows) {
586 topscan = (topscan + (lines << 4)) & 0x3ff;
587 newport_clear_lines(vc->vc_rows - lines,
589 (vc->state.color & 0xf0) >> 4);
591 topscan = (topscan + (-lines << 4)) & 0x3ff;
592 newport_clear_lines(0, lines - 1,
593 (vc->state.color & 0xf0) >> 4);
595 npregs->cset.topscan = (topscan - 1) & 0x3ff;
599 count = (b - t - lines) * vc->vc_cols;
603 s = (unsigned short *) (vc->vc_origin +
604 vc->vc_size_row * (t + lines));
605 d = (unsigned short *) (vc->vc_origin +
606 vc->vc_size_row * t);
608 chattr = scr_readw(s++);
609 if (chattr != scr_readw(d)) {
610 newport_putc(vc, chattr, y, x);
611 scr_writew(chattr, d);
614 if (++x == vc->vc_cols) {
619 d = (unsigned short *) (vc->vc_origin +
620 vc->vc_size_row * (b - lines));
623 for (count = 0; count < (lines * vc->vc_cols); count++) {
624 if (scr_readw(d) != vc->vc_video_erase_char) {
625 newport_putc(vc, vc->vc_video_erase_char,
627 scr_writew(vc->vc_video_erase_char, d);
630 if (++x == vc->vc_cols) {
638 s = (unsigned short *) (vc->vc_origin +
639 vc->vc_size_row * (b - lines) - 2);
640 d = (unsigned short *) (vc->vc_origin +
641 vc->vc_size_row * b - 2);
643 chattr = scr_readw(s--);
644 if (chattr != scr_readw(d)) {
645 newport_putc(vc, chattr, y, x);
646 scr_writew(chattr, d);
654 d = (unsigned short *) (vc->vc_origin +
655 vc->vc_size_row * t);
658 for (count = 0; count < (lines * vc->vc_cols); count++) {
659 if (scr_readw(d) != vc->vc_video_erase_char) {
660 newport_putc(vc, vc->vc_video_erase_char,
662 scr_writew(vc->vc_video_erase_char, d);
665 if (++x == vc->vc_cols) {
674 static int newport_set_origin(struct vc_data *vc)
679 static void newport_save_screen(struct vc_data *vc) { }
681 const struct consw newport_con = {
682 .owner = THIS_MODULE,
683 .con_startup = newport_startup,
684 .con_init = newport_init,
685 .con_deinit = newport_deinit,
686 .con_clear = newport_clear,
687 .con_putc = newport_putc,
688 .con_putcs = newport_putcs,
689 .con_cursor = newport_cursor,
690 .con_scroll = newport_scroll,
691 .con_switch = newport_switch,
692 .con_blank = newport_blank,
693 .con_font_set = newport_font_set,
694 .con_font_default = newport_font_default,
695 .con_set_origin = newport_set_origin,
696 .con_save_screen = newport_save_screen
699 static int newport_probe(struct gio_device *dev,
700 const struct gio_device_id *id)
704 if (!dev->resource.start)
708 return -EBUSY; /* we only support one Newport as console */
710 newport_addr = dev->resource.start + 0xF0000;
711 if (!request_mem_region(newport_addr, NEWPORT_LEN, "Newport"))
714 npregs = (struct newport_regs *)/* ioremap cannot fail */
715 ioremap(newport_addr, sizeof(struct newport_regs));
717 err = do_take_over_console(&newport_con, 0, MAX_NR_CONSOLES - 1, 1);
721 iounmap((void *)npregs);
722 release_mem_region(newport_addr, NEWPORT_LEN);
727 static void newport_remove(struct gio_device *dev)
729 give_up_console(&newport_con);
730 iounmap((void *)npregs);
731 release_mem_region(newport_addr, NEWPORT_LEN);
734 static struct gio_device_id newport_ids[] = {
739 MODULE_ALIAS("gio:7e");
741 static struct gio_driver newport_driver = {
743 .id_table = newport_ids,
744 .probe = newport_probe,
745 .remove = newport_remove,
748 int __init newport_console_init(void)
750 return gio_register_driver(&newport_driver);
753 void __exit newport_console_exit(void)
755 gio_unregister_driver(&newport_driver);
758 module_init(newport_console_init);
759 module_exit(newport_console_exit);
761 MODULE_LICENSE("GPL");