Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * newport_con.c: Abscon for newport hardware | |
3 | * | |
4 | * (C) 1998 Thomas Bogendoerfer (tsbogend@alpha.franken.de) | |
5 | * (C) 1999 Ulf Carlsson (ulfc@thepuffingruop.com) | |
6 | * | |
7 | * This driver is based on sgicons.c and cons_newport. | |
8 | * | |
9 | * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) | |
10 | * Copyright (C) 1997 Miguel de Icaza (miguel@nuclecu.unam.mx) | |
11 | */ | |
12 | #include <linux/init.h> | |
13 | #include <linux/kernel.h> | |
14 | #include <linux/errno.h> | |
1da177e4 LT |
15 | #include <linux/kd.h> |
16 | #include <linux/selection.h> | |
17 | #include <linux/console.h> | |
18 | #include <linux/vt_kern.h> | |
19 | #include <linux/mm.h> | |
20 | #include <linux/module.h> | |
21 | #include <linux/slab.h> | |
22 | ||
23 | #include <asm/io.h> | |
24 | #include <asm/uaccess.h> | |
25 | #include <asm/system.h> | |
26 | #include <asm/page.h> | |
27 | #include <asm/pgtable.h> | |
28 | #include <video/newport.h> | |
29 | ||
30 | #include <linux/linux_logo.h> | |
31 | #include <linux/font.h> | |
32 | ||
33 | ||
1da177e4 LT |
34 | extern unsigned long sgi_gfxaddr; |
35 | ||
36 | #define FONT_DATA ((unsigned char *)font_vga_8x16.data) | |
37 | ||
38 | /* borrowed from fbcon.c */ | |
39 | #define REFCOUNT(fd) (((int *)(fd))[-1]) | |
40 | #define FNTSIZE(fd) (((int *)(fd))[-2]) | |
41 | #define FNTCHARCNT(fd) (((int *)(fd))[-3]) | |
42 | #define FONT_EXTRA_WORDS 3 | |
43 | ||
44 | static unsigned char *font_data[MAX_NR_CONSOLES]; | |
45 | ||
46 | static struct newport_regs *npregs; | |
47 | ||
48 | static int logo_active; | |
49 | static int topscan; | |
50 | static int xcurs_correction = 29; | |
51 | static int newport_xsize; | |
52 | static int newport_ysize; | |
e86bb8ac | 53 | static int newport_has_init; |
1da177e4 LT |
54 | |
55 | static int newport_set_def_font(int unit, struct console_font *op); | |
56 | ||
57 | #define BMASK(c) (c << 24) | |
58 | ||
59 | #define RENDER(regs, cp) do { \ | |
60 | (regs)->go.zpattern = BMASK((cp)[0x0]); (regs)->go.zpattern = BMASK((cp)[0x1]); \ | |
61 | (regs)->go.zpattern = BMASK((cp)[0x2]); (regs)->go.zpattern = BMASK((cp)[0x3]); \ | |
62 | (regs)->go.zpattern = BMASK((cp)[0x4]); (regs)->go.zpattern = BMASK((cp)[0x5]); \ | |
63 | (regs)->go.zpattern = BMASK((cp)[0x6]); (regs)->go.zpattern = BMASK((cp)[0x7]); \ | |
64 | (regs)->go.zpattern = BMASK((cp)[0x8]); (regs)->go.zpattern = BMASK((cp)[0x9]); \ | |
65 | (regs)->go.zpattern = BMASK((cp)[0xa]); (regs)->go.zpattern = BMASK((cp)[0xb]); \ | |
66 | (regs)->go.zpattern = BMASK((cp)[0xc]); (regs)->go.zpattern = BMASK((cp)[0xd]); \ | |
67 | (regs)->go.zpattern = BMASK((cp)[0xe]); (regs)->go.zpattern = BMASK((cp)[0xf]); \ | |
68 | } while(0) | |
69 | ||
70 | #define TESTVAL 0xdeadbeef | |
71 | #define XSTI_TO_FXSTART(val) (((val) & 0xffff) << 11) | |
72 | ||
73 | static inline void newport_render_background(int xstart, int ystart, | |
74 | int xend, int yend, int ci) | |
75 | { | |
76 | newport_wait(npregs); | |
77 | npregs->set.wrmask = 0xffffffff; | |
78 | npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | | |
79 | NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX | |
80 | | NPORT_DMODE0_STOPY); | |
81 | npregs->set.colori = ci; | |
82 | npregs->set.xystarti = | |
83 | (xstart << 16) | ((ystart + topscan) & 0x3ff); | |
84 | npregs->go.xyendi = | |
85 | ((xend + 7) << 16) | ((yend + topscan + 15) & 0x3ff); | |
86 | } | |
87 | ||
88 | static inline void newport_init_cmap(void) | |
89 | { | |
90 | unsigned short i; | |
91 | ||
92 | for (i = 0; i < 16; i++) { | |
93 | newport_bfwait(npregs); | |
94 | newport_cmap_setaddr(npregs, color_table[i]); | |
95 | newport_cmap_setrgb(npregs, | |
96 | default_red[i], | |
97 | default_grn[i], default_blu[i]); | |
98 | } | |
99 | } | |
100 | ||
101 | static void newport_show_logo(void) | |
102 | { | |
103 | #ifdef CONFIG_LOGO_SGI_CLUT224 | |
104 | const struct linux_logo *logo = fb_find_logo(8); | |
105 | const unsigned char *clut = logo->clut; | |
106 | const unsigned char *data = logo->data; | |
107 | unsigned long i; | |
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 | #endif /* CONFIG_LOGO_SGI_CLUT224 */ | |
127 | } | |
128 | ||
129 | static inline void newport_clear_screen(int xstart, int ystart, int xend, | |
130 | int yend, int ci) | |
131 | { | |
132 | if (logo_active) | |
133 | return; | |
134 | ||
135 | newport_wait(npregs); | |
136 | npregs->set.wrmask = 0xffffffff; | |
137 | npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | | |
138 | NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX | |
139 | | NPORT_DMODE0_STOPY); | |
140 | npregs->set.colori = ci; | |
141 | npregs->set.xystarti = (xstart << 16) | ystart; | |
142 | npregs->go.xyendi = (xend << 16) | yend; | |
143 | } | |
144 | ||
145 | static inline void newport_clear_lines(int ystart, int yend, int ci) | |
146 | { | |
147 | ystart = ((ystart << 4) + topscan) & 0x3ff; | |
148 | yend = ((yend << 4) + topscan + 15) & 0x3ff; | |
149 | newport_clear_screen(0, ystart, 1280 + 63, yend, ci); | |
150 | } | |
151 | ||
ac3f9087 | 152 | static void newport_reset(void) |
1da177e4 LT |
153 | { |
154 | unsigned short treg; | |
155 | int i; | |
156 | ||
157 | newport_wait(npregs); | |
158 | treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); | |
159 | newport_vc2_set(npregs, VC2_IREG_CONTROL, | |
160 | (treg | VC2_CTRL_EVIDEO)); | |
161 | ||
162 | treg = newport_vc2_get(npregs, VC2_IREG_CENTRY); | |
163 | newport_vc2_set(npregs, VC2_IREG_RADDR, treg); | |
164 | npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | | |
165 | NPORT_DMODE_W2 | VC2_PROTOCOL); | |
166 | for (i = 0; i < 128; i++) { | |
167 | newport_bfwait(npregs); | |
168 | if (i == 92 || i == 94) | |
169 | npregs->set.dcbdata0.byshort.s1 = 0xff00; | |
170 | else | |
171 | npregs->set.dcbdata0.byshort.s1 = 0x0000; | |
172 | } | |
173 | ||
174 | newport_init_cmap(); | |
175 | ||
176 | /* turn off popup plane */ | |
177 | npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL | | |
178 | XM9_CRS_CONFIG | NPORT_DMODE_W1); | |
179 | npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE; | |
180 | npregs->set.dcbmode = (DCB_XMAP1 | R_DCB_XMAP9_PROTOCOL | | |
181 | XM9_CRS_CONFIG | NPORT_DMODE_W1); | |
182 | npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE; | |
183 | ||
184 | topscan = 0; | |
185 | npregs->cset.topscan = 0x3ff; | |
186 | npregs->cset.xywin = (4096 << 16) | 4096; | |
187 | ||
188 | /* Clear the screen. */ | |
189 | newport_clear_screen(0, 0, 1280 + 63, 1024, 0); | |
190 | } | |
191 | ||
192 | /* | |
193 | * calculate the actual screen size by reading | |
194 | * the video timing out of the VC2 | |
195 | */ | |
ac3f9087 | 196 | static void newport_get_screensize(void) |
1da177e4 LT |
197 | { |
198 | int i, cols; | |
199 | unsigned short ventry, treg; | |
200 | unsigned short linetable[128]; /* should be enough */ | |
201 | ||
202 | ventry = newport_vc2_get(npregs, VC2_IREG_VENTRY); | |
203 | newport_vc2_set(npregs, VC2_IREG_RADDR, ventry); | |
204 | npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | | |
205 | NPORT_DMODE_W2 | VC2_PROTOCOL); | |
206 | for (i = 0; i < 128; i++) { | |
207 | newport_bfwait(npregs); | |
208 | linetable[i] = npregs->set.dcbdata0.byshort.s1; | |
209 | } | |
210 | ||
211 | newport_xsize = newport_ysize = 0; | |
212 | for (i = 0; linetable[i + 1] && (i < sizeof(linetable)); i += 2) { | |
213 | cols = 0; | |
214 | newport_vc2_set(npregs, VC2_IREG_RADDR, linetable[i]); | |
215 | npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | | |
216 | NPORT_DMODE_W2 | VC2_PROTOCOL); | |
217 | do { | |
218 | newport_bfwait(npregs); | |
219 | treg = npregs->set.dcbdata0.byshort.s1; | |
220 | if ((treg & 1) == 0) | |
221 | cols += (treg >> 7) & 0xfe; | |
222 | if ((treg & 0x80) == 0) { | |
223 | newport_bfwait(npregs); | |
224 | treg = npregs->set.dcbdata0.byshort.s1; | |
225 | } | |
226 | } while ((treg & 0x8000) == 0); | |
227 | if (cols) { | |
228 | if (cols > newport_xsize) | |
229 | newport_xsize = cols; | |
230 | newport_ysize += linetable[i + 1]; | |
231 | } | |
232 | } | |
233 | printk("NG1: Screensize %dx%d\n", newport_xsize, newport_ysize); | |
234 | } | |
235 | ||
236 | static void newport_get_revisions(void) | |
237 | { | |
238 | unsigned int tmp; | |
239 | unsigned int board_rev; | |
240 | unsigned int rex3_rev; | |
241 | unsigned int vc2_rev; | |
242 | unsigned int cmap_rev; | |
243 | unsigned int xmap9_rev; | |
244 | unsigned int bt445_rev; | |
245 | unsigned int bitplanes; | |
246 | ||
247 | rex3_rev = npregs->cset.status & NPORT_STAT_VERS; | |
248 | ||
249 | npregs->set.dcbmode = (DCB_CMAP0 | NCMAP_PROTOCOL | | |
250 | NCMAP_REGADDR_RREG | NPORT_DMODE_W1); | |
251 | tmp = npregs->set.dcbdata0.bybytes.b3; | |
252 | cmap_rev = tmp & 7; | |
253 | board_rev = (tmp >> 4) & 7; | |
254 | bitplanes = ((board_rev > 1) && (tmp & 0x80)) ? 8 : 24; | |
255 | ||
256 | npregs->set.dcbmode = (DCB_CMAP1 | NCMAP_PROTOCOL | | |
257 | NCMAP_REGADDR_RREG | NPORT_DMODE_W1); | |
258 | tmp = npregs->set.dcbdata0.bybytes.b3; | |
259 | if ((tmp & 7) < cmap_rev) | |
260 | cmap_rev = (tmp & 7); | |
261 | ||
262 | vc2_rev = (newport_vc2_get(npregs, VC2_IREG_CONFIG) >> 5) & 7; | |
263 | ||
264 | npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL | | |
265 | XM9_CRS_REVISION | NPORT_DMODE_W1); | |
266 | xmap9_rev = npregs->set.dcbdata0.bybytes.b3 & 7; | |
267 | ||
268 | npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL | | |
269 | BT445_CSR_ADDR_REG | NPORT_DMODE_W1); | |
270 | npregs->set.dcbdata0.bybytes.b3 = BT445_REVISION_REG; | |
271 | npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL | | |
272 | BT445_CSR_REVISION | NPORT_DMODE_W1); | |
273 | bt445_rev = (npregs->set.dcbdata0.bybytes.b3 >> 4) - 0x0a; | |
274 | ||
275 | #define L(a) (char)('A'+(a)) | |
276 | printk | |
277 | ("NG1: Revision %d, %d bitplanes, REX3 revision %c, VC2 revision %c, xmap9 revision %c, cmap revision %c, bt445 revision %c\n", | |
278 | board_rev, bitplanes, L(rex3_rev), L(vc2_rev), L(xmap9_rev), | |
279 | L(cmap_rev ? (cmap_rev + 1) : 0), L(bt445_rev)); | |
280 | #undef L | |
281 | ||
282 | if (board_rev == 3) /* I don't know all affected revisions */ | |
283 | xcurs_correction = 21; | |
284 | } | |
285 | ||
e86bb8ac AD |
286 | static void newport_exit(void) |
287 | { | |
288 | int i; | |
289 | ||
290 | /* free memory used by user font */ | |
291 | for (i = 0; i < MAX_NR_CONSOLES; i++) | |
292 | newport_set_def_font(i, NULL); | |
293 | } | |
294 | ||
1da177e4 LT |
295 | /* Can't be __init, take_over_console may call it later */ |
296 | static const char *newport_startup(void) | |
297 | { | |
298 | int i; | |
299 | ||
300 | if (!sgi_gfxaddr) | |
301 | return NULL; | |
e86bb8ac AD |
302 | |
303 | if (!npregs) | |
304 | npregs = (struct newport_regs *)/* ioremap cannot fail */ | |
305 | ioremap(sgi_gfxaddr, sizeof(struct newport_regs)); | |
1da177e4 LT |
306 | npregs->cset.config = NPORT_CFG_GD0; |
307 | ||
308 | if (newport_wait(npregs)) | |
309 | goto out_unmap; | |
310 | ||
311 | npregs->set.xstarti = TESTVAL; | |
312 | if (npregs->set._xstart.word != XSTI_TO_FXSTART(TESTVAL)) | |
313 | goto out_unmap; | |
314 | ||
315 | for (i = 0; i < MAX_NR_CONSOLES; i++) | |
316 | font_data[i] = FONT_DATA; | |
317 | ||
318 | newport_reset(); | |
319 | newport_get_revisions(); | |
320 | newport_get_screensize(); | |
e86bb8ac | 321 | newport_has_init = 1; |
1da177e4 LT |
322 | |
323 | return "SGI Newport"; | |
324 | ||
325 | out_unmap: | |
1da177e4 LT |
326 | return NULL; |
327 | } | |
328 | ||
329 | static void newport_init(struct vc_data *vc, int init) | |
330 | { | |
331 | vc->vc_cols = newport_xsize / 8; | |
332 | vc->vc_rows = newport_ysize / 16; | |
333 | vc->vc_can_do_color = 1; | |
334 | } | |
335 | ||
336 | static void newport_deinit(struct vc_data *c) | |
337 | { | |
e86bb8ac AD |
338 | if (!con_is_bound(&newport_con) && newport_has_init) { |
339 | newport_exit(); | |
340 | newport_has_init = 0; | |
341 | } | |
1da177e4 LT |
342 | } |
343 | ||
344 | static void newport_clear(struct vc_data *vc, int sy, int sx, int height, | |
345 | int width) | |
346 | { | |
347 | int xend = ((sx + width) << 3) - 1; | |
348 | int ystart = ((sy << 4) + topscan) & 0x3ff; | |
349 | int yend = (((sy + height) << 4) + topscan - 1) & 0x3ff; | |
350 | ||
351 | if (logo_active) | |
352 | return; | |
353 | ||
354 | if (ystart < yend) { | |
355 | newport_clear_screen(sx << 3, ystart, xend, yend, | |
356 | (vc->vc_color & 0xf0) >> 4); | |
357 | } else { | |
358 | newport_clear_screen(sx << 3, ystart, xend, 1023, | |
359 | (vc->vc_color & 0xf0) >> 4); | |
360 | newport_clear_screen(sx << 3, 0, xend, yend, | |
361 | (vc->vc_color & 0xf0) >> 4); | |
362 | } | |
363 | } | |
364 | ||
365 | static void newport_putc(struct vc_data *vc, int charattr, int ypos, | |
366 | int xpos) | |
367 | { | |
368 | unsigned char *p; | |
369 | ||
370 | p = &font_data[vc->vc_num][(charattr & 0xff) << 4]; | |
371 | charattr = (charattr >> 8) & 0xff; | |
372 | xpos <<= 3; | |
373 | ypos <<= 4; | |
374 | ||
375 | newport_render_background(xpos, ypos, xpos, ypos, | |
376 | (charattr & 0xf0) >> 4); | |
377 | ||
378 | /* Set the color and drawing mode. */ | |
379 | newport_wait(npregs); | |
380 | npregs->set.colori = charattr & 0xf; | |
381 | npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | | |
382 | NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB | | |
383 | NPORT_DMODE0_L32); | |
384 | ||
385 | /* Set coordinates for bitmap operation. */ | |
386 | npregs->set.xystarti = (xpos << 16) | ((ypos + topscan) & 0x3ff); | |
387 | npregs->set.xyendi = ((xpos + 7) << 16); | |
388 | newport_wait(npregs); | |
389 | ||
390 | /* Go, baby, go... */ | |
391 | RENDER(npregs, p); | |
392 | } | |
393 | ||
394 | static void newport_putcs(struct vc_data *vc, const unsigned short *s, | |
395 | int count, int ypos, int xpos) | |
396 | { | |
397 | int i; | |
398 | int charattr; | |
399 | unsigned char *p; | |
400 | ||
401 | charattr = (scr_readw(s) >> 8) & 0xff; | |
402 | ||
403 | xpos <<= 3; | |
404 | ypos <<= 4; | |
405 | ||
406 | if (!logo_active) | |
407 | /* Clear the area behing the string */ | |
408 | newport_render_background(xpos, ypos, | |
409 | xpos + ((count - 1) << 3), ypos, | |
410 | (charattr & 0xf0) >> 4); | |
411 | ||
412 | newport_wait(npregs); | |
413 | ||
414 | /* Set the color and drawing mode. */ | |
415 | npregs->set.colori = charattr & 0xf; | |
416 | npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | | |
417 | NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB | | |
418 | NPORT_DMODE0_L32); | |
419 | ||
420 | for (i = 0; i < count; i++, xpos += 8) { | |
421 | p = &font_data[vc->vc_num][(scr_readw(s++) & 0xff) << 4]; | |
422 | ||
423 | newport_wait(npregs); | |
424 | ||
425 | /* Set coordinates for bitmap operation. */ | |
426 | npregs->set.xystarti = | |
427 | (xpos << 16) | ((ypos + topscan) & 0x3ff); | |
428 | npregs->set.xyendi = ((xpos + 7) << 16); | |
429 | ||
430 | /* Go, baby, go... */ | |
431 | RENDER(npregs, p); | |
432 | } | |
433 | } | |
434 | ||
435 | static void newport_cursor(struct vc_data *vc, int mode) | |
436 | { | |
437 | unsigned short treg; | |
438 | int xcurs, ycurs; | |
439 | ||
440 | switch (mode) { | |
441 | case CM_ERASE: | |
442 | treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); | |
443 | newport_vc2_set(npregs, VC2_IREG_CONTROL, | |
444 | (treg & ~(VC2_CTRL_ECDISP))); | |
445 | break; | |
446 | ||
447 | case CM_MOVE: | |
448 | case CM_DRAW: | |
449 | treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); | |
450 | newport_vc2_set(npregs, VC2_IREG_CONTROL, | |
451 | (treg | VC2_CTRL_ECDISP)); | |
452 | xcurs = (vc->vc_pos - vc->vc_visible_origin) / 2; | |
453 | ycurs = ((xcurs / vc->vc_cols) << 4) + 31; | |
454 | xcurs = ((xcurs % vc->vc_cols) << 3) + xcurs_correction; | |
455 | newport_vc2_set(npregs, VC2_IREG_CURSX, xcurs); | |
456 | newport_vc2_set(npregs, VC2_IREG_CURSY, ycurs); | |
457 | } | |
458 | } | |
459 | ||
460 | static int newport_switch(struct vc_data *vc) | |
461 | { | |
462 | static int logo_drawn = 0; | |
463 | ||
464 | topscan = 0; | |
465 | npregs->cset.topscan = 0x3ff; | |
466 | ||
467 | if (!logo_drawn) { | |
468 | newport_show_logo(); | |
469 | logo_drawn = 1; | |
470 | logo_active = 1; | |
471 | } | |
472 | ||
473 | return 1; | |
474 | } | |
475 | ||
476 | static int newport_blank(struct vc_data *c, int blank, int mode_switch) | |
477 | { | |
478 | unsigned short treg; | |
479 | ||
480 | if (blank == 0) { | |
481 | /* unblank console */ | |
482 | treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); | |
483 | newport_vc2_set(npregs, VC2_IREG_CONTROL, | |
484 | (treg | VC2_CTRL_EDISP)); | |
485 | } else { | |
486 | /* blank console */ | |
487 | treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); | |
488 | newport_vc2_set(npregs, VC2_IREG_CONTROL, | |
489 | (treg & ~(VC2_CTRL_EDISP))); | |
490 | } | |
491 | return 1; | |
492 | } | |
493 | ||
494 | static int newport_set_font(int unit, struct console_font *op) | |
495 | { | |
496 | int w = op->width; | |
497 | int h = op->height; | |
498 | int size = h * op->charcount; | |
499 | int i; | |
500 | unsigned char *new_data, *data = op->data, *p; | |
501 | ||
502 | /* ladis: when I grow up, there will be a day... and more sizes will | |
503 | * be supported ;-) */ | |
504 | if ((w != 8) || (h != 16) | |
505 | || (op->charcount != 256 && op->charcount != 512)) | |
506 | return -EINVAL; | |
507 | ||
508 | if (!(new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size, | |
509 | GFP_USER))) return -ENOMEM; | |
510 | ||
511 | new_data += FONT_EXTRA_WORDS * sizeof(int); | |
512 | FNTSIZE(new_data) = size; | |
513 | FNTCHARCNT(new_data) = op->charcount; | |
514 | REFCOUNT(new_data) = 0; /* usage counter */ | |
515 | ||
516 | p = new_data; | |
517 | for (i = 0; i < op->charcount; i++) { | |
518 | memcpy(p, data, h); | |
519 | data += 32; | |
520 | p += h; | |
521 | } | |
522 | ||
523 | /* check if font is already used by other console */ | |
524 | for (i = 0; i < MAX_NR_CONSOLES; i++) { | |
525 | if (font_data[i] != FONT_DATA | |
526 | && FNTSIZE(font_data[i]) == size | |
527 | && !memcmp(font_data[i], new_data, size)) { | |
528 | kfree(new_data - FONT_EXTRA_WORDS * sizeof(int)); | |
529 | /* current font is the same as the new one */ | |
530 | if (i == unit) | |
531 | return 0; | |
532 | new_data = font_data[i]; | |
533 | break; | |
534 | } | |
535 | } | |
536 | /* old font is user font */ | |
537 | if (font_data[unit] != FONT_DATA) { | |
538 | if (--REFCOUNT(font_data[unit]) == 0) | |
539 | kfree(font_data[unit] - | |
540 | FONT_EXTRA_WORDS * sizeof(int)); | |
541 | } | |
542 | REFCOUNT(new_data)++; | |
543 | font_data[unit] = new_data; | |
544 | ||
545 | return 0; | |
546 | } | |
547 | ||
548 | static int newport_set_def_font(int unit, struct console_font *op) | |
549 | { | |
550 | if (font_data[unit] != FONT_DATA) { | |
551 | if (--REFCOUNT(font_data[unit]) == 0) | |
552 | kfree(font_data[unit] - | |
553 | FONT_EXTRA_WORDS * sizeof(int)); | |
554 | font_data[unit] = FONT_DATA; | |
555 | } | |
556 | ||
557 | return 0; | |
558 | } | |
559 | ||
560 | static int newport_font_default(struct vc_data *vc, struct console_font *op, char *name) | |
561 | { | |
562 | return newport_set_def_font(vc->vc_num, op); | |
563 | } | |
564 | ||
565 | static int newport_font_set(struct vc_data *vc, struct console_font *font, unsigned flags) | |
566 | { | |
567 | return newport_set_font(vc->vc_num, font); | |
568 | } | |
569 | ||
570 | static int newport_set_palette(struct vc_data *vc, unsigned char *table) | |
571 | { | |
572 | return -EINVAL; | |
573 | } | |
574 | ||
575 | static int newport_scrolldelta(struct vc_data *vc, int lines) | |
576 | { | |
577 | /* there is (nearly) no off-screen memory, so we can't scroll back */ | |
578 | return 0; | |
579 | } | |
580 | ||
581 | static int newport_scroll(struct vc_data *vc, int t, int b, int dir, | |
582 | int lines) | |
583 | { | |
584 | int count, x, y; | |
585 | unsigned short *s, *d; | |
586 | unsigned short chattr; | |
587 | ||
588 | logo_active = 0; /* it's time to disable the logo now.. */ | |
589 | ||
590 | if (t == 0 && b == vc->vc_rows) { | |
591 | if (dir == SM_UP) { | |
592 | topscan = (topscan + (lines << 4)) & 0x3ff; | |
593 | newport_clear_lines(vc->vc_rows - lines, | |
594 | vc->vc_rows - 1, | |
595 | (vc->vc_color & 0xf0) >> 4); | |
596 | } else { | |
597 | topscan = (topscan + (-lines << 4)) & 0x3ff; | |
598 | newport_clear_lines(0, lines - 1, | |
599 | (vc->vc_color & 0xf0) >> 4); | |
600 | } | |
601 | npregs->cset.topscan = (topscan - 1) & 0x3ff; | |
602 | return 0; | |
603 | } | |
604 | ||
605 | count = (b - t - lines) * vc->vc_cols; | |
606 | if (dir == SM_UP) { | |
607 | x = 0; | |
608 | y = t; | |
609 | s = (unsigned short *) (vc->vc_origin + | |
610 | vc->vc_size_row * (t + lines)); | |
611 | d = (unsigned short *) (vc->vc_origin + | |
612 | vc->vc_size_row * t); | |
613 | while (count--) { | |
614 | chattr = scr_readw(s++); | |
615 | if (chattr != scr_readw(d)) { | |
616 | newport_putc(vc, chattr, y, x); | |
617 | scr_writew(chattr, d); | |
618 | } | |
619 | d++; | |
620 | if (++x == vc->vc_cols) { | |
621 | x = 0; | |
622 | y++; | |
623 | } | |
624 | } | |
625 | d = (unsigned short *) (vc->vc_origin + | |
626 | vc->vc_size_row * (b - lines)); | |
627 | x = 0; | |
628 | y = b - lines; | |
629 | for (count = 0; count < (lines * vc->vc_cols); count++) { | |
630 | if (scr_readw(d) != vc->vc_video_erase_char) { | |
631 | newport_putc(vc, vc->vc_video_erase_char, | |
632 | y, x); | |
633 | scr_writew(vc->vc_video_erase_char, d); | |
634 | } | |
635 | d++; | |
636 | if (++x == vc->vc_cols) { | |
637 | x = 0; | |
638 | y++; | |
639 | } | |
640 | } | |
641 | } else { | |
642 | x = vc->vc_cols - 1; | |
643 | y = b - 1; | |
644 | s = (unsigned short *) (vc->vc_origin + | |
645 | vc->vc_size_row * (b - lines) - 2); | |
646 | d = (unsigned short *) (vc->vc_origin + | |
647 | vc->vc_size_row * b - 2); | |
648 | while (count--) { | |
649 | chattr = scr_readw(s--); | |
650 | if (chattr != scr_readw(d)) { | |
651 | newport_putc(vc, chattr, y, x); | |
652 | scr_writew(chattr, d); | |
653 | } | |
654 | d--; | |
655 | if (x-- == 0) { | |
656 | x = vc->vc_cols - 1; | |
657 | y--; | |
658 | } | |
659 | } | |
660 | d = (unsigned short *) (vc->vc_origin + | |
661 | vc->vc_size_row * t); | |
662 | x = 0; | |
663 | y = t; | |
664 | for (count = 0; count < (lines * vc->vc_cols); count++) { | |
665 | if (scr_readw(d) != vc->vc_video_erase_char) { | |
666 | newport_putc(vc, vc->vc_video_erase_char, | |
667 | y, x); | |
668 | scr_writew(vc->vc_video_erase_char, d); | |
669 | } | |
670 | d++; | |
671 | if (++x == vc->vc_cols) { | |
672 | x = 0; | |
673 | y++; | |
674 | } | |
675 | } | |
676 | } | |
677 | return 1; | |
678 | } | |
679 | ||
680 | static void newport_bmove(struct vc_data *vc, int sy, int sx, int dy, | |
681 | int dx, int h, int w) | |
682 | { | |
683 | short xs, ys, xe, ye, xoffs, yoffs, tmp; | |
684 | ||
685 | xs = sx << 3; | |
686 | xe = ((sx + w) << 3) - 1; | |
687 | /* | |
688 | * as bmove is only used to move stuff around in the same line | |
689 | * (h == 1), we don't care about wrap arounds caused by topscan != 0 | |
690 | */ | |
691 | ys = ((sy << 4) + topscan) & 0x3ff; | |
692 | ye = (((sy + h) << 4) - 1 + topscan) & 0x3ff; | |
693 | xoffs = (dx - sx) << 3; | |
694 | yoffs = (dy - sy) << 4; | |
695 | if (xoffs > 0) { | |
696 | /* move to the right, exchange starting points */ | |
697 | tmp = xe; | |
698 | xe = xs; | |
699 | xs = tmp; | |
700 | } | |
701 | newport_wait(npregs); | |
702 | npregs->set.drawmode0 = (NPORT_DMODE0_S2S | NPORT_DMODE0_BLOCK | | |
703 | NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX | |
704 | | NPORT_DMODE0_STOPY); | |
705 | npregs->set.xystarti = (xs << 16) | ys; | |
706 | npregs->set.xyendi = (xe << 16) | ye; | |
707 | npregs->go.xymove = (xoffs << 16) | yoffs; | |
708 | } | |
709 | ||
710 | static int newport_dummy(struct vc_data *c) | |
711 | { | |
712 | return 0; | |
713 | } | |
714 | ||
715 | #define DUMMY (void *) newport_dummy | |
716 | ||
717 | const struct consw newport_con = { | |
718 | .owner = THIS_MODULE, | |
719 | .con_startup = newport_startup, | |
720 | .con_init = newport_init, | |
721 | .con_deinit = newport_deinit, | |
722 | .con_clear = newport_clear, | |
723 | .con_putc = newport_putc, | |
724 | .con_putcs = newport_putcs, | |
725 | .con_cursor = newport_cursor, | |
726 | .con_scroll = newport_scroll, | |
727 | .con_bmove = newport_bmove, | |
728 | .con_switch = newport_switch, | |
729 | .con_blank = newport_blank, | |
730 | .con_font_set = newport_font_set, | |
731 | .con_font_default = newport_font_default, | |
732 | .con_set_palette = newport_set_palette, | |
733 | .con_scrolldelta = newport_scrolldelta, | |
734 | .con_set_origin = DUMMY, | |
735 | .con_save_screen = DUMMY | |
736 | }; | |
737 | ||
738 | #ifdef MODULE | |
739 | static int __init newport_console_init(void) | |
740 | { | |
e86bb8ac AD |
741 | |
742 | if (!sgi_gfxaddr) | |
743 | return NULL; | |
744 | ||
745 | if (!npregs) | |
746 | npregs = (struct newport_regs *)/* ioremap cannot fail */ | |
747 | ioremap(sgi_gfxaddr, sizeof(struct newport_regs)); | |
748 | ||
1da177e4 LT |
749 | return take_over_console(&newport_con, 0, MAX_NR_CONSOLES - 1, 1); |
750 | } | |
e86bb8ac | 751 | module_init(newport_console_init); |
1da177e4 LT |
752 | |
753 | static void __exit newport_console_exit(void) | |
754 | { | |
755 | give_up_console(&newport_con); | |
756 | iounmap((void *)npregs); | |
757 | } | |
1da177e4 LT |
758 | module_exit(newport_console_exit); |
759 | #endif | |
760 | ||
761 | MODULE_LICENSE("GPL"); |