Commit | Line | Data |
---|---|---|
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 | * | |
79add627 | 9 | * Copyright (C) 1996 David S. Miller (davem@davemloft.net) |
1da177e4 LT |
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> | |
1da177e4 LT |
25 | #include <asm/page.h> |
26 | #include <asm/pgtable.h> | |
e84de0c6 TB |
27 | #include <asm/gio_device.h> |
28 | ||
1da177e4 LT |
29 | #include <video/newport.h> |
30 | ||
31 | #include <linux/linux_logo.h> | |
32 | #include <linux/font.h> | |
33 | ||
1da177e4 LT |
34 | #define FONT_DATA ((unsigned char *)font_vga_8x16.data) |
35 | ||
36 | /* borrowed from fbcon.c */ | |
37 | #define REFCOUNT(fd) (((int *)(fd))[-1]) | |
38 | #define FNTSIZE(fd) (((int *)(fd))[-2]) | |
39 | #define FNTCHARCNT(fd) (((int *)(fd))[-3]) | |
40 | #define FONT_EXTRA_WORDS 3 | |
41 | ||
42 | static unsigned char *font_data[MAX_NR_CONSOLES]; | |
43 | ||
44 | static struct newport_regs *npregs; | |
45 | ||
46 | static int logo_active; | |
47 | static int topscan; | |
48 | static int xcurs_correction = 29; | |
49 | static int newport_xsize; | |
50 | static int newport_ysize; | |
e86bb8ac | 51 | static int newport_has_init; |
1da177e4 LT |
52 | |
53 | static int newport_set_def_font(int unit, struct console_font *op); | |
54 | ||
55 | #define BMASK(c) (c << 24) | |
56 | ||
57 | #define RENDER(regs, cp) do { \ | |
58 | (regs)->go.zpattern = BMASK((cp)[0x0]); (regs)->go.zpattern = BMASK((cp)[0x1]); \ | |
59 | (regs)->go.zpattern = BMASK((cp)[0x2]); (regs)->go.zpattern = BMASK((cp)[0x3]); \ | |
60 | (regs)->go.zpattern = BMASK((cp)[0x4]); (regs)->go.zpattern = BMASK((cp)[0x5]); \ | |
61 | (regs)->go.zpattern = BMASK((cp)[0x6]); (regs)->go.zpattern = BMASK((cp)[0x7]); \ | |
62 | (regs)->go.zpattern = BMASK((cp)[0x8]); (regs)->go.zpattern = BMASK((cp)[0x9]); \ | |
63 | (regs)->go.zpattern = BMASK((cp)[0xa]); (regs)->go.zpattern = BMASK((cp)[0xb]); \ | |
64 | (regs)->go.zpattern = BMASK((cp)[0xc]); (regs)->go.zpattern = BMASK((cp)[0xd]); \ | |
65 | (regs)->go.zpattern = BMASK((cp)[0xe]); (regs)->go.zpattern = BMASK((cp)[0xf]); \ | |
66 | } while(0) | |
67 | ||
68 | #define TESTVAL 0xdeadbeef | |
69 | #define XSTI_TO_FXSTART(val) (((val) & 0xffff) << 11) | |
70 | ||
71 | static inline void newport_render_background(int xstart, int ystart, | |
72 | int xend, int yend, int ci) | |
73 | { | |
74 | newport_wait(npregs); | |
75 | npregs->set.wrmask = 0xffffffff; | |
76 | npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | | |
77 | NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX | |
78 | | NPORT_DMODE0_STOPY); | |
79 | npregs->set.colori = ci; | |
80 | npregs->set.xystarti = | |
81 | (xstart << 16) | ((ystart + topscan) & 0x3ff); | |
82 | npregs->go.xyendi = | |
83 | ((xend + 7) << 16) | ((yend + topscan + 15) & 0x3ff); | |
84 | } | |
85 | ||
86 | static inline void newport_init_cmap(void) | |
87 | { | |
88 | unsigned short i; | |
89 | ||
90 | for (i = 0; i < 16; i++) { | |
91 | newport_bfwait(npregs); | |
92 | newport_cmap_setaddr(npregs, color_table[i]); | |
93 | newport_cmap_setrgb(npregs, | |
94 | default_red[i], | |
95 | default_grn[i], default_blu[i]); | |
96 | } | |
97 | } | |
98 | ||
53da0563 | 99 | static const struct linux_logo *newport_show_logo(void) |
1da177e4 LT |
100 | { |
101 | #ifdef CONFIG_LOGO_SGI_CLUT224 | |
102 | const struct linux_logo *logo = fb_find_logo(8); | |
accaa24c RD |
103 | const unsigned char *clut; |
104 | const unsigned char *data; | |
1da177e4 LT |
105 | unsigned long i; |
106 | ||
accaa24c RD |
107 | if (!logo) |
108 | return NULL; | |
53da0563 RB |
109 | clut = logo->clut; |
110 | data = logo->data; | |
accaa24c | 111 | |
1da177e4 LT |
112 | for (i = 0; i < logo->clutsize; i++) { |
113 | newport_bfwait(npregs); | |
114 | newport_cmap_setaddr(npregs, i + 0x20); | |
115 | newport_cmap_setrgb(npregs, clut[0], clut[1], clut[2]); | |
116 | clut += 3; | |
117 | } | |
118 | ||
119 | newport_wait(npregs); | |
120 | npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | | |
121 | NPORT_DMODE0_CHOST); | |
122 | ||
123 | npregs->set.xystarti = ((newport_xsize - logo->width) << 16) | (0); | |
124 | npregs->set.xyendi = ((newport_xsize - 1) << 16); | |
125 | newport_wait(npregs); | |
126 | ||
127 | for (i = 0; i < logo->width*logo->height; i++) | |
128 | npregs->go.hostrw0 = *data++ << 24; | |
accaa24c RD |
129 | |
130 | return logo; | |
1da177e4 LT |
131 | #endif /* CONFIG_LOGO_SGI_CLUT224 */ |
132 | } | |
133 | ||
134 | static inline void newport_clear_screen(int xstart, int ystart, int xend, | |
135 | int yend, int ci) | |
136 | { | |
137 | if (logo_active) | |
138 | return; | |
139 | ||
140 | newport_wait(npregs); | |
141 | npregs->set.wrmask = 0xffffffff; | |
142 | npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | | |
143 | NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX | |
144 | | NPORT_DMODE0_STOPY); | |
145 | npregs->set.colori = ci; | |
146 | npregs->set.xystarti = (xstart << 16) | ystart; | |
147 | npregs->go.xyendi = (xend << 16) | yend; | |
148 | } | |
149 | ||
150 | static inline void newport_clear_lines(int ystart, int yend, int ci) | |
151 | { | |
152 | ystart = ((ystart << 4) + topscan) & 0x3ff; | |
153 | yend = ((yend << 4) + topscan + 15) & 0x3ff; | |
154 | newport_clear_screen(0, ystart, 1280 + 63, yend, ci); | |
155 | } | |
156 | ||
ac3f9087 | 157 | static void newport_reset(void) |
1da177e4 LT |
158 | { |
159 | unsigned short treg; | |
160 | int i; | |
161 | ||
162 | newport_wait(npregs); | |
163 | treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); | |
164 | newport_vc2_set(npregs, VC2_IREG_CONTROL, | |
165 | (treg | VC2_CTRL_EVIDEO)); | |
166 | ||
167 | treg = newport_vc2_get(npregs, VC2_IREG_CENTRY); | |
168 | newport_vc2_set(npregs, VC2_IREG_RADDR, treg); | |
169 | npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | | |
170 | NPORT_DMODE_W2 | VC2_PROTOCOL); | |
171 | for (i = 0; i < 128; i++) { | |
172 | newport_bfwait(npregs); | |
173 | if (i == 92 || i == 94) | |
174 | npregs->set.dcbdata0.byshort.s1 = 0xff00; | |
175 | else | |
176 | npregs->set.dcbdata0.byshort.s1 = 0x0000; | |
177 | } | |
178 | ||
179 | newport_init_cmap(); | |
180 | ||
181 | /* turn off popup plane */ | |
182 | npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL | | |
183 | XM9_CRS_CONFIG | NPORT_DMODE_W1); | |
184 | npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE; | |
185 | npregs->set.dcbmode = (DCB_XMAP1 | R_DCB_XMAP9_PROTOCOL | | |
186 | XM9_CRS_CONFIG | NPORT_DMODE_W1); | |
187 | npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE; | |
188 | ||
189 | topscan = 0; | |
190 | npregs->cset.topscan = 0x3ff; | |
191 | npregs->cset.xywin = (4096 << 16) | 4096; | |
192 | ||
193 | /* Clear the screen. */ | |
194 | newport_clear_screen(0, 0, 1280 + 63, 1024, 0); | |
195 | } | |
196 | ||
197 | /* | |
198 | * calculate the actual screen size by reading | |
199 | * the video timing out of the VC2 | |
200 | */ | |
ac3f9087 | 201 | static void newport_get_screensize(void) |
1da177e4 LT |
202 | { |
203 | int i, cols; | |
204 | unsigned short ventry, treg; | |
205 | unsigned short linetable[128]; /* should be enough */ | |
206 | ||
207 | ventry = newport_vc2_get(npregs, VC2_IREG_VENTRY); | |
208 | newport_vc2_set(npregs, VC2_IREG_RADDR, ventry); | |
209 | npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | | |
210 | NPORT_DMODE_W2 | VC2_PROTOCOL); | |
211 | for (i = 0; i < 128; i++) { | |
212 | newport_bfwait(npregs); | |
213 | linetable[i] = npregs->set.dcbdata0.byshort.s1; | |
214 | } | |
215 | ||
216 | newport_xsize = newport_ysize = 0; | |
f7a595e9 | 217 | for (i = 0; i < ARRAY_SIZE(linetable) - 1 && linetable[i + 1]; i += 2) { |
1da177e4 LT |
218 | cols = 0; |
219 | newport_vc2_set(npregs, VC2_IREG_RADDR, linetable[i]); | |
220 | npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | | |
221 | NPORT_DMODE_W2 | VC2_PROTOCOL); | |
222 | do { | |
223 | newport_bfwait(npregs); | |
224 | treg = npregs->set.dcbdata0.byshort.s1; | |
225 | if ((treg & 1) == 0) | |
226 | cols += (treg >> 7) & 0xfe; | |
227 | if ((treg & 0x80) == 0) { | |
228 | newport_bfwait(npregs); | |
229 | treg = npregs->set.dcbdata0.byshort.s1; | |
230 | } | |
231 | } while ((treg & 0x8000) == 0); | |
232 | if (cols) { | |
233 | if (cols > newport_xsize) | |
234 | newport_xsize = cols; | |
235 | newport_ysize += linetable[i + 1]; | |
236 | } | |
237 | } | |
238 | printk("NG1: Screensize %dx%d\n", newport_xsize, newport_ysize); | |
239 | } | |
240 | ||
241 | static void newport_get_revisions(void) | |
242 | { | |
243 | unsigned int tmp; | |
244 | unsigned int board_rev; | |
245 | unsigned int rex3_rev; | |
246 | unsigned int vc2_rev; | |
247 | unsigned int cmap_rev; | |
248 | unsigned int xmap9_rev; | |
249 | unsigned int bt445_rev; | |
250 | unsigned int bitplanes; | |
251 | ||
252 | rex3_rev = npregs->cset.status & NPORT_STAT_VERS; | |
253 | ||
254 | npregs->set.dcbmode = (DCB_CMAP0 | NCMAP_PROTOCOL | | |
255 | NCMAP_REGADDR_RREG | NPORT_DMODE_W1); | |
256 | tmp = npregs->set.dcbdata0.bybytes.b3; | |
257 | cmap_rev = tmp & 7; | |
258 | board_rev = (tmp >> 4) & 7; | |
259 | bitplanes = ((board_rev > 1) && (tmp & 0x80)) ? 8 : 24; | |
260 | ||
261 | npregs->set.dcbmode = (DCB_CMAP1 | NCMAP_PROTOCOL | | |
262 | NCMAP_REGADDR_RREG | NPORT_DMODE_W1); | |
263 | tmp = npregs->set.dcbdata0.bybytes.b3; | |
264 | if ((tmp & 7) < cmap_rev) | |
265 | cmap_rev = (tmp & 7); | |
266 | ||
267 | vc2_rev = (newport_vc2_get(npregs, VC2_IREG_CONFIG) >> 5) & 7; | |
268 | ||
269 | npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL | | |
270 | XM9_CRS_REVISION | NPORT_DMODE_W1); | |
271 | xmap9_rev = npregs->set.dcbdata0.bybytes.b3 & 7; | |
272 | ||
273 | npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL | | |
274 | BT445_CSR_ADDR_REG | NPORT_DMODE_W1); | |
275 | npregs->set.dcbdata0.bybytes.b3 = BT445_REVISION_REG; | |
276 | npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL | | |
277 | BT445_CSR_REVISION | NPORT_DMODE_W1); | |
278 | bt445_rev = (npregs->set.dcbdata0.bybytes.b3 >> 4) - 0x0a; | |
279 | ||
280 | #define L(a) (char)('A'+(a)) | |
281 | printk | |
282 | ("NG1: Revision %d, %d bitplanes, REX3 revision %c, VC2 revision %c, xmap9 revision %c, cmap revision %c, bt445 revision %c\n", | |
283 | board_rev, bitplanes, L(rex3_rev), L(vc2_rev), L(xmap9_rev), | |
284 | L(cmap_rev ? (cmap_rev + 1) : 0), L(bt445_rev)); | |
285 | #undef L | |
286 | ||
287 | if (board_rev == 3) /* I don't know all affected revisions */ | |
288 | xcurs_correction = 21; | |
289 | } | |
290 | ||
e86bb8ac AD |
291 | static void newport_exit(void) |
292 | { | |
293 | int i; | |
294 | ||
295 | /* free memory used by user font */ | |
296 | for (i = 0; i < MAX_NR_CONSOLES; i++) | |
297 | newport_set_def_font(i, NULL); | |
298 | } | |
299 | ||
155957f5 | 300 | /* Can't be __init, do_take_over_console may call it later */ |
1da177e4 LT |
301 | static const char *newport_startup(void) |
302 | { | |
303 | int i; | |
304 | ||
1da177e4 LT |
305 | npregs->cset.config = NPORT_CFG_GD0; |
306 | ||
307 | if (newport_wait(npregs)) | |
308 | goto out_unmap; | |
309 | ||
310 | npregs->set.xstarti = TESTVAL; | |
311 | if (npregs->set._xstart.word != XSTI_TO_FXSTART(TESTVAL)) | |
312 | goto out_unmap; | |
313 | ||
314 | for (i = 0; i < MAX_NR_CONSOLES; i++) | |
315 | font_data[i] = FONT_DATA; | |
316 | ||
317 | newport_reset(); | |
318 | newport_get_revisions(); | |
319 | newport_get_screensize(); | |
e86bb8ac | 320 | newport_has_init = 1; |
1da177e4 LT |
321 | |
322 | return "SGI Newport"; | |
323 | ||
324 | out_unmap: | |
1da177e4 LT |
325 | return NULL; |
326 | } | |
327 | ||
328 | static void newport_init(struct vc_data *vc, int init) | |
329 | { | |
fa4dbbc6 TB |
330 | int cols, rows; |
331 | ||
332 | cols = newport_xsize / 8; | |
333 | rows = newport_ysize / 16; | |
1da177e4 | 334 | vc->vc_can_do_color = 1; |
fa4dbbc6 TB |
335 | if (init) { |
336 | vc->vc_cols = cols; | |
337 | vc->vc_rows = rows; | |
338 | } else | |
339 | vc_resize(vc, cols, rows); | |
1da177e4 LT |
340 | } |
341 | ||
342 | static void newport_deinit(struct vc_data *c) | |
343 | { | |
e86bb8ac AD |
344 | if (!con_is_bound(&newport_con) && newport_has_init) { |
345 | newport_exit(); | |
346 | newport_has_init = 0; | |
347 | } | |
1da177e4 LT |
348 | } |
349 | ||
350 | static void newport_clear(struct vc_data *vc, int sy, int sx, int height, | |
351 | int width) | |
352 | { | |
353 | int xend = ((sx + width) << 3) - 1; | |
354 | int ystart = ((sy << 4) + topscan) & 0x3ff; | |
355 | int yend = (((sy + height) << 4) + topscan - 1) & 0x3ff; | |
356 | ||
357 | if (logo_active) | |
358 | return; | |
359 | ||
360 | if (ystart < yend) { | |
361 | newport_clear_screen(sx << 3, ystart, xend, yend, | |
362 | (vc->vc_color & 0xf0) >> 4); | |
363 | } else { | |
364 | newport_clear_screen(sx << 3, ystart, xend, 1023, | |
365 | (vc->vc_color & 0xf0) >> 4); | |
366 | newport_clear_screen(sx << 3, 0, xend, yend, | |
367 | (vc->vc_color & 0xf0) >> 4); | |
368 | } | |
369 | } | |
370 | ||
371 | static void newport_putc(struct vc_data *vc, int charattr, int ypos, | |
372 | int xpos) | |
373 | { | |
374 | unsigned char *p; | |
375 | ||
376 | p = &font_data[vc->vc_num][(charattr & 0xff) << 4]; | |
377 | charattr = (charattr >> 8) & 0xff; | |
378 | xpos <<= 3; | |
379 | ypos <<= 4; | |
380 | ||
381 | newport_render_background(xpos, ypos, xpos, ypos, | |
382 | (charattr & 0xf0) >> 4); | |
383 | ||
384 | /* Set the color and drawing mode. */ | |
385 | newport_wait(npregs); | |
386 | npregs->set.colori = charattr & 0xf; | |
387 | npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | | |
388 | NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB | | |
389 | NPORT_DMODE0_L32); | |
390 | ||
391 | /* Set coordinates for bitmap operation. */ | |
392 | npregs->set.xystarti = (xpos << 16) | ((ypos + topscan) & 0x3ff); | |
393 | npregs->set.xyendi = ((xpos + 7) << 16); | |
394 | newport_wait(npregs); | |
395 | ||
396 | /* Go, baby, go... */ | |
397 | RENDER(npregs, p); | |
398 | } | |
399 | ||
400 | static void newport_putcs(struct vc_data *vc, const unsigned short *s, | |
401 | int count, int ypos, int xpos) | |
402 | { | |
403 | int i; | |
404 | int charattr; | |
405 | unsigned char *p; | |
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 | ||
441 | static void newport_cursor(struct vc_data *vc, int mode) | |
442 | { | |
443 | unsigned short treg; | |
444 | int xcurs, ycurs; | |
445 | ||
446 | switch (mode) { | |
447 | case CM_ERASE: | |
448 | treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); | |
449 | newport_vc2_set(npregs, VC2_IREG_CONTROL, | |
450 | (treg & ~(VC2_CTRL_ECDISP))); | |
451 | break; | |
452 | ||
453 | case CM_MOVE: | |
454 | case CM_DRAW: | |
455 | treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); | |
456 | newport_vc2_set(npregs, VC2_IREG_CONTROL, | |
457 | (treg | VC2_CTRL_ECDISP)); | |
458 | xcurs = (vc->vc_pos - vc->vc_visible_origin) / 2; | |
459 | ycurs = ((xcurs / vc->vc_cols) << 4) + 31; | |
460 | xcurs = ((xcurs % vc->vc_cols) << 3) + xcurs_correction; | |
461 | newport_vc2_set(npregs, VC2_IREG_CURSX, xcurs); | |
462 | newport_vc2_set(npregs, VC2_IREG_CURSY, ycurs); | |
463 | } | |
464 | } | |
465 | ||
466 | static int newport_switch(struct vc_data *vc) | |
467 | { | |
468 | static int logo_drawn = 0; | |
469 | ||
470 | topscan = 0; | |
471 | npregs->cset.topscan = 0x3ff; | |
472 | ||
473 | if (!logo_drawn) { | |
accaa24c RD |
474 | if (newport_show_logo()) { |
475 | logo_drawn = 1; | |
476 | logo_active = 1; | |
477 | } | |
1da177e4 LT |
478 | } |
479 | ||
480 | return 1; | |
481 | } | |
482 | ||
483 | static int newport_blank(struct vc_data *c, int blank, int mode_switch) | |
484 | { | |
485 | unsigned short treg; | |
486 | ||
487 | if (blank == 0) { | |
488 | /* unblank console */ | |
489 | treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); | |
490 | newport_vc2_set(npregs, VC2_IREG_CONTROL, | |
491 | (treg | VC2_CTRL_EDISP)); | |
492 | } else { | |
493 | /* blank console */ | |
494 | treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); | |
495 | newport_vc2_set(npregs, VC2_IREG_CONTROL, | |
496 | (treg & ~(VC2_CTRL_EDISP))); | |
497 | } | |
498 | return 1; | |
499 | } | |
500 | ||
501 | static int newport_set_font(int unit, struct console_font *op) | |
502 | { | |
503 | int w = op->width; | |
504 | int h = op->height; | |
505 | int size = h * op->charcount; | |
506 | int i; | |
507 | unsigned char *new_data, *data = op->data, *p; | |
508 | ||
509 | /* ladis: when I grow up, there will be a day... and more sizes will | |
510 | * be supported ;-) */ | |
511 | if ((w != 8) || (h != 16) | |
512 | || (op->charcount != 256 && op->charcount != 512)) | |
513 | return -EINVAL; | |
514 | ||
515 | if (!(new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size, | |
516 | GFP_USER))) return -ENOMEM; | |
517 | ||
518 | new_data += FONT_EXTRA_WORDS * sizeof(int); | |
519 | FNTSIZE(new_data) = size; | |
520 | FNTCHARCNT(new_data) = op->charcount; | |
521 | REFCOUNT(new_data) = 0; /* usage counter */ | |
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_DATA | |
533 | && FNTSIZE(font_data[i]) == size | |
534 | && !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 | ||
555 | static 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 | ||
567 | static int newport_font_default(struct vc_data *vc, struct console_font *op, char *name) | |
568 | { | |
569 | return newport_set_def_font(vc->vc_num, op); | |
570 | } | |
571 | ||
572 | static int newport_font_set(struct vc_data *vc, struct console_font *font, unsigned flags) | |
573 | { | |
574 | return newport_set_font(vc->vc_num, font); | |
575 | } | |
576 | ||
1da177e4 LT |
577 | static int newport_scroll(struct vc_data *vc, int t, int b, int dir, |
578 | int lines) | |
579 | { | |
580 | int count, x, y; | |
581 | unsigned short *s, *d; | |
582 | unsigned short chattr; | |
583 | ||
584 | logo_active = 0; /* it's time to disable the logo now.. */ | |
585 | ||
586 | if (t == 0 && b == vc->vc_rows) { | |
587 | if (dir == SM_UP) { | |
588 | topscan = (topscan + (lines << 4)) & 0x3ff; | |
589 | newport_clear_lines(vc->vc_rows - lines, | |
590 | vc->vc_rows - 1, | |
591 | (vc->vc_color & 0xf0) >> 4); | |
592 | } else { | |
593 | topscan = (topscan + (-lines << 4)) & 0x3ff; | |
594 | newport_clear_lines(0, lines - 1, | |
595 | (vc->vc_color & 0xf0) >> 4); | |
596 | } | |
597 | npregs->cset.topscan = (topscan - 1) & 0x3ff; | |
598 | return 0; | |
599 | } | |
600 | ||
601 | count = (b - t - lines) * vc->vc_cols; | |
602 | if (dir == SM_UP) { | |
603 | x = 0; | |
604 | y = t; | |
605 | s = (unsigned short *) (vc->vc_origin + | |
606 | vc->vc_size_row * (t + lines)); | |
607 | d = (unsigned short *) (vc->vc_origin + | |
608 | vc->vc_size_row * t); | |
609 | while (count--) { | |
610 | chattr = scr_readw(s++); | |
611 | if (chattr != scr_readw(d)) { | |
612 | newport_putc(vc, chattr, y, x); | |
613 | scr_writew(chattr, d); | |
614 | } | |
615 | d++; | |
616 | if (++x == vc->vc_cols) { | |
617 | x = 0; | |
618 | y++; | |
619 | } | |
620 | } | |
621 | d = (unsigned short *) (vc->vc_origin + | |
622 | vc->vc_size_row * (b - lines)); | |
623 | x = 0; | |
624 | y = b - lines; | |
625 | for (count = 0; count < (lines * vc->vc_cols); count++) { | |
626 | if (scr_readw(d) != vc->vc_video_erase_char) { | |
627 | newport_putc(vc, vc->vc_video_erase_char, | |
628 | y, x); | |
629 | scr_writew(vc->vc_video_erase_char, d); | |
630 | } | |
631 | d++; | |
632 | if (++x == vc->vc_cols) { | |
633 | x = 0; | |
634 | y++; | |
635 | } | |
636 | } | |
637 | } else { | |
638 | x = vc->vc_cols - 1; | |
639 | y = b - 1; | |
640 | s = (unsigned short *) (vc->vc_origin + | |
641 | vc->vc_size_row * (b - lines) - 2); | |
642 | d = (unsigned short *) (vc->vc_origin + | |
643 | vc->vc_size_row * b - 2); | |
644 | while (count--) { | |
645 | chattr = scr_readw(s--); | |
646 | if (chattr != scr_readw(d)) { | |
647 | newport_putc(vc, chattr, y, x); | |
648 | scr_writew(chattr, d); | |
649 | } | |
650 | d--; | |
651 | if (x-- == 0) { | |
652 | x = vc->vc_cols - 1; | |
653 | y--; | |
654 | } | |
655 | } | |
656 | d = (unsigned short *) (vc->vc_origin + | |
657 | vc->vc_size_row * t); | |
658 | x = 0; | |
659 | y = t; | |
660 | for (count = 0; count < (lines * vc->vc_cols); count++) { | |
661 | if (scr_readw(d) != vc->vc_video_erase_char) { | |
662 | newport_putc(vc, vc->vc_video_erase_char, | |
663 | y, x); | |
664 | scr_writew(vc->vc_video_erase_char, d); | |
665 | } | |
666 | d++; | |
667 | if (++x == vc->vc_cols) { | |
668 | x = 0; | |
669 | y++; | |
670 | } | |
671 | } | |
672 | } | |
673 | return 1; | |
674 | } | |
675 | ||
1da177e4 LT |
676 | static int newport_dummy(struct vc_data *c) |
677 | { | |
678 | return 0; | |
679 | } | |
680 | ||
681 | #define DUMMY (void *) newport_dummy | |
682 | ||
683 | const struct consw newport_con = { | |
684 | .owner = THIS_MODULE, | |
685 | .con_startup = newport_startup, | |
686 | .con_init = newport_init, | |
687 | .con_deinit = newport_deinit, | |
688 | .con_clear = newport_clear, | |
689 | .con_putc = newport_putc, | |
690 | .con_putcs = newport_putcs, | |
691 | .con_cursor = newport_cursor, | |
692 | .con_scroll = newport_scroll, | |
1da177e4 LT |
693 | .con_switch = newport_switch, |
694 | .con_blank = newport_blank, | |
695 | .con_font_set = newport_font_set, | |
696 | .con_font_default = newport_font_default, | |
1da177e4 LT |
697 | .con_set_origin = DUMMY, |
698 | .con_save_screen = DUMMY | |
699 | }; | |
700 | ||
e84de0c6 TB |
701 | static int newport_probe(struct gio_device *dev, |
702 | const struct gio_device_id *id) | |
1da177e4 | 703 | { |
e84de0c6 | 704 | unsigned long newport_addr; |
155957f5 | 705 | int err; |
e86bb8ac | 706 | |
e84de0c6 TB |
707 | if (!dev->resource.start) |
708 | return -EINVAL; | |
709 | ||
710 | if (npregs) | |
711 | return -EBUSY; /* we only support one Newport as console */ | |
712 | ||
713 | newport_addr = dev->resource.start + 0xF0000; | |
714 | if (!request_mem_region(newport_addr, 0x10000, "Newport")) | |
715 | return -ENODEV; | |
716 | ||
717 | npregs = (struct newport_regs *)/* ioremap cannot fail */ | |
718 | ioremap(newport_addr, sizeof(struct newport_regs)); | |
155957f5 WY |
719 | console_lock(); |
720 | err = do_take_over_console(&newport_con, 0, MAX_NR_CONSOLES - 1, 1); | |
721 | console_unlock(); | |
722 | return err; | |
1da177e4 LT |
723 | } |
724 | ||
e84de0c6 | 725 | static void newport_remove(struct gio_device *dev) |
1da177e4 LT |
726 | { |
727 | give_up_console(&newport_con); | |
728 | iounmap((void *)npregs); | |
729 | } | |
e84de0c6 TB |
730 | |
731 | static struct gio_device_id newport_ids[] = { | |
732 | { .id = 0x7e }, | |
733 | { .id = 0xff } | |
734 | }; | |
735 | ||
736 | MODULE_ALIAS("gio:7e"); | |
737 | ||
738 | static struct gio_driver newport_driver = { | |
739 | .name = "newport", | |
740 | .id_table = newport_ids, | |
741 | .probe = newport_probe, | |
742 | .remove = newport_remove, | |
743 | }; | |
744 | ||
745 | int __init newport_console_init(void) | |
746 | { | |
747 | return gio_register_driver(&newport_driver); | |
748 | } | |
749 | ||
750 | void __exit newport_console_exit(void) | |
751 | { | |
752 | gio_unregister_driver(&newport_driver); | |
753 | } | |
754 | ||
755 | module_init(newport_console_init); | |
1da177e4 | 756 | module_exit(newport_console_exit); |
1da177e4 LT |
757 | |
758 | MODULE_LICENSE("GPL"); |