Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * linux/drivers/video/S3Triofb.c -- Open Firmware based frame buffer device | |
3 | * | |
4 | * Copyright (C) 1997 Peter De Schrijver | |
5 | * | |
6 | * This driver is partly based on the PowerMac console driver: | |
7 | * | |
8 | * Copyright (C) 1996 Paul Mackerras | |
9 | * | |
10 | * and on the Open Firmware based frame buffer device: | |
11 | * | |
12 | * Copyright (C) 1997 Geert Uytterhoeven | |
13 | * | |
14 | * This file is subject to the terms and conditions of the GNU General Public | |
15 | * License. See the file COPYING in the main directory of this archive for | |
16 | * more details. | |
17 | */ | |
18 | ||
19 | /* | |
20 | Bugs : + OF dependencies should be removed. | |
21 | + This driver should be merged with the CyberVision driver. The | |
22 | CyberVision is a Zorro III implementation of the S3Trio64 chip. | |
23 | ||
24 | */ | |
25 | ||
1da177e4 LT |
26 | #include <linux/kernel.h> |
27 | #include <linux/module.h> | |
28 | #include <linux/errno.h> | |
29 | #include <linux/string.h> | |
30 | #include <linux/mm.h> | |
1da177e4 LT |
31 | #include <linux/slab.h> |
32 | #include <linux/vmalloc.h> | |
33 | #include <linux/delay.h> | |
34 | #include <linux/interrupt.h> | |
35 | #include <linux/fb.h> | |
36 | #include <linux/init.h> | |
37 | #include <linux/selection.h> | |
38 | #include <asm/io.h> | |
39 | #include <asm/prom.h> | |
40 | #include <asm/pci-bridge.h> | |
41 | #include <linux/pci.h> | |
42 | ||
43 | #include <video/fbcon.h> | |
44 | #include <video/fbcon-cfb8.h> | |
45 | #include <video/s3blit.h> | |
46 | ||
47 | ||
48 | #define mem_in8(addr) in_8((void *)(addr)) | |
49 | #define mem_in16(addr) in_le16((void *)(addr)) | |
50 | #define mem_in32(addr) in_le32((void *)(addr)) | |
51 | ||
52 | #define mem_out8(val, addr) out_8((void *)(addr), val) | |
53 | #define mem_out16(val, addr) out_le16((void *)(addr), val) | |
54 | #define mem_out32(val, addr) out_le32((void *)(addr), val) | |
55 | ||
56 | #define IO_OUT16VAL(v, r) (((v) << 8) | (r)) | |
57 | ||
58 | static struct display disp; | |
59 | static struct fb_info fb_info; | |
60 | static struct { u_char red, green, blue, pad; } palette[256]; | |
61 | static char s3trio_name[16] = "S3Trio "; | |
62 | static char *s3trio_base; | |
63 | ||
64 | static struct fb_fix_screeninfo fb_fix; | |
65 | static struct fb_var_screeninfo fb_var = { 0, }; | |
66 | ||
67 | ||
68 | /* | |
69 | * Interface used by the world | |
70 | */ | |
71 | ||
72 | static void __init s3triofb_of_init(struct device_node *dp); | |
73 | static int s3trio_get_fix(struct fb_fix_screeninfo *fix, int con, | |
74 | struct fb_info *info); | |
75 | static int s3trio_get_var(struct fb_var_screeninfo *var, int con, | |
76 | struct fb_info *info); | |
77 | static int s3trio_set_var(struct fb_var_screeninfo *var, int con, | |
78 | struct fb_info *info); | |
79 | static int s3trio_get_cmap(struct fb_cmap *cmap, int kspc, int con, | |
80 | struct fb_info *info); | |
81 | static int s3trio_setcolreg(u_int regno, u_int red, u_int green, u_int blue, | |
82 | u_int transp, struct fb_info *info); | |
83 | static int s3trio_pan_display(struct fb_var_screeninfo *var, int con, | |
84 | struct fb_info *info); | |
85 | static void s3triofb_blank(int blank, struct fb_info *info); | |
86 | ||
87 | /* | |
88 | * Interface to the low level console driver | |
89 | */ | |
90 | ||
91 | int s3triofb_init(void); | |
92 | static int s3triofbcon_switch(int con, struct fb_info *info); | |
93 | static int s3triofbcon_updatevar(int con, struct fb_info *info); | |
94 | ||
95 | /* | |
96 | * Text console acceleration | |
97 | */ | |
98 | ||
99 | #ifdef FBCON_HAS_CFB8 | |
100 | static struct display_switch fbcon_trio8; | |
101 | #endif | |
102 | ||
103 | /* | |
104 | * Accelerated Functions used by the low level console driver | |
105 | */ | |
106 | ||
107 | static void Trio_WaitQueue(u_short fifo); | |
108 | static void Trio_WaitBlit(void); | |
109 | static void Trio_BitBLT(u_short curx, u_short cury, u_short destx, | |
110 | u_short desty, u_short width, u_short height, | |
111 | u_short mode); | |
112 | static void Trio_RectFill(u_short x, u_short y, u_short width, u_short height, | |
113 | u_short mode, u_short color); | |
114 | static void Trio_MoveCursor(u_short x, u_short y); | |
115 | ||
116 | ||
117 | /* | |
118 | * Internal routines | |
119 | */ | |
120 | ||
121 | static int s3trio_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue, | |
122 | u_int *transp, struct fb_info *info); | |
123 | ||
124 | static struct fb_ops s3trio_ops = { | |
125 | .owner = THIS_MODULE, | |
126 | .fb_get_fix = s3trio_get_fix, | |
127 | .fb_get_var = s3trio_get_var, | |
128 | .fb_set_var = s3trio_set_var, | |
129 | .fb_get_cmap = s3trio_get_cmap, | |
130 | .fb_set_cmap = gen_set_cmap, | |
131 | .fb_setcolreg = s3trio_setcolreg, | |
132 | .fb_pan_display =s3trio_pan_display, | |
133 | .fb_blank = s3triofb_blank, | |
134 | }; | |
135 | ||
136 | /* | |
137 | * Get the Fixed Part of the Display | |
138 | */ | |
139 | ||
140 | static int s3trio_get_fix(struct fb_fix_screeninfo *fix, int con, | |
141 | struct fb_info *info) | |
142 | { | |
143 | memcpy(fix, &fb_fix, sizeof(fb_fix)); | |
144 | return 0; | |
145 | } | |
146 | ||
147 | ||
148 | /* | |
149 | * Get the User Defined Part of the Display | |
150 | */ | |
151 | ||
152 | static int s3trio_get_var(struct fb_var_screeninfo *var, int con, | |
153 | struct fb_info *info) | |
154 | { | |
155 | memcpy(var, &fb_var, sizeof(fb_var)); | |
156 | return 0; | |
157 | } | |
158 | ||
159 | ||
160 | /* | |
161 | * Set the User Defined Part of the Display | |
162 | */ | |
163 | ||
164 | static int s3trio_set_var(struct fb_var_screeninfo *var, int con, | |
165 | struct fb_info *info) | |
166 | { | |
167 | if (var->xres > fb_var.xres || var->yres > fb_var.yres || | |
168 | var->bits_per_pixel > fb_var.bits_per_pixel ) | |
169 | /* || var->nonstd || var->vmode != FB_VMODE_NONINTERLACED) */ | |
170 | return -EINVAL; | |
171 | if (var->xres_virtual > fb_var.xres_virtual) { | |
172 | outw(IO_OUT16VAL((var->xres_virtual /8) & 0xff, 0x13), 0x3d4); | |
173 | outw(IO_OUT16VAL(((var->xres_virtual /8 ) & 0x300) >> 3, 0x51), 0x3d4); | |
174 | fb_var.xres_virtual = var->xres_virtual; | |
175 | fb_fix.line_length = var->xres_virtual; | |
176 | } | |
177 | fb_var.yres_virtual = var->yres_virtual; | |
178 | memcpy(var, &fb_var, sizeof(fb_var)); | |
179 | return 0; | |
180 | } | |
181 | ||
182 | ||
183 | /* | |
184 | * Pan or Wrap the Display | |
185 | * | |
186 | * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag | |
187 | */ | |
188 | ||
189 | static int s3trio_pan_display(struct fb_var_screeninfo *var, int con, | |
190 | struct fb_info *info) | |
191 | { | |
192 | unsigned int base; | |
193 | ||
194 | if (var->xoffset > (var->xres_virtual - var->xres)) | |
195 | return -EINVAL; | |
196 | if (var->yoffset > (var->yres_virtual - var->yres)) | |
197 | return -EINVAL; | |
198 | ||
199 | fb_var.xoffset = var->xoffset; | |
200 | fb_var.yoffset = var->yoffset; | |
201 | ||
202 | base = var->yoffset * fb_fix.line_length + var->xoffset; | |
203 | ||
204 | outw(IO_OUT16VAL((base >> 8) & 0xff, 0x0c),0x03D4); | |
205 | outw(IO_OUT16VAL(base & 0xff, 0x0d),0x03D4); | |
206 | outw(IO_OUT16VAL((base >> 16) & 0xf, 0x69),0x03D4); | |
207 | return 0; | |
208 | } | |
209 | ||
210 | ||
211 | /* | |
212 | * Get the Colormap | |
213 | */ | |
214 | ||
215 | static int s3trio_get_cmap(struct fb_cmap *cmap, int kspc, int con, | |
216 | struct fb_info *info) | |
217 | { | |
218 | if (con == info->currcon) /* current console? */ | |
219 | return fb_get_cmap(cmap, kspc, s3trio_getcolreg, info); | |
220 | else if (fb_display[con].cmap.len) /* non default colormap? */ | |
221 | fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2); | |
222 | else | |
223 | fb_copy_cmap(fb_default_cmap(1 << fb_display[con].var.bits_per_pixel), | |
224 | cmap, kspc ? 0 : 2); | |
225 | return 0; | |
226 | } | |
227 | ||
228 | int __init s3triofb_init(void) | |
229 | { | |
230 | struct device_node *dp; | |
231 | ||
232 | dp = find_devices("S3Trio"); | |
233 | if (dp != 0) | |
234 | s3triofb_of_init(dp); | |
235 | return 0; | |
236 | } | |
237 | ||
238 | void __init s3trio_resetaccel(void){ | |
239 | ||
240 | ||
241 | #define EC01_ENH_ENB 0x0005 | |
242 | #define EC01_LAW_ENB 0x0010 | |
243 | #define EC01_MMIO_ENB 0x0020 | |
244 | ||
245 | #define EC00_RESET 0x8000 | |
246 | #define EC00_ENABLE 0x4000 | |
247 | #define MF_MULT_MISC 0xE000 | |
248 | #define SRC_FOREGROUND 0x0020 | |
249 | #define SRC_BACKGROUND 0x0000 | |
250 | #define MIX_SRC 0x0007 | |
251 | #define MF_T_CLIP 0x1000 | |
252 | #define MF_L_CLIP 0x2000 | |
253 | #define MF_B_CLIP 0x3000 | |
254 | #define MF_R_CLIP 0x4000 | |
255 | #define MF_PIX_CONTROL 0xA000 | |
256 | #define MFA_SRC_FOREGR_MIX 0x0000 | |
257 | #define MF_PIX_CONTROL 0xA000 | |
258 | ||
259 | outw(EC00_RESET, 0x42e8); | |
260 | inw( 0x42e8); | |
261 | outw(EC00_ENABLE, 0x42e8); | |
262 | inw( 0x42e8); | |
263 | outw(EC01_ENH_ENB | EC01_LAW_ENB, | |
264 | 0x4ae8); | |
265 | outw(MF_MULT_MISC, 0xbee8); /* 16 bit I/O registers */ | |
266 | ||
267 | /* Now set some basic accelerator registers */ | |
268 | Trio_WaitQueue(0x0400); | |
269 | outw(SRC_FOREGROUND | MIX_SRC, 0xbae8); | |
270 | outw(SRC_BACKGROUND | MIX_SRC, 0xb6e8);/* direct color*/ | |
271 | outw(MF_T_CLIP | 0, 0xbee8 ); /* clip virtual area */ | |
272 | outw(MF_L_CLIP | 0, 0xbee8 ); | |
273 | outw(MF_R_CLIP | (640 - 1), 0xbee8); | |
274 | outw(MF_B_CLIP | (480 - 1), 0xbee8); | |
275 | Trio_WaitQueue(0x0400); | |
276 | outw(0xffff, 0xaae8); /* Enable all planes */ | |
277 | outw(0xffff, 0xaae8); /* Enable all planes */ | |
278 | outw( MF_PIX_CONTROL | MFA_SRC_FOREGR_MIX, 0xbee8); | |
279 | } | |
280 | ||
281 | int __init s3trio_init(struct device_node *dp){ | |
282 | ||
283 | u_char bus, dev; | |
284 | unsigned int t32; | |
285 | unsigned short cmd; | |
286 | ||
287 | pci_device_loc(dp,&bus,&dev); | |
288 | pcibios_read_config_dword(bus, dev, PCI_VENDOR_ID, &t32); | |
289 | if(t32 == (PCI_DEVICE_ID_S3_TRIO << 16) + PCI_VENDOR_ID_S3) { | |
290 | pcibios_read_config_dword(bus, dev, PCI_BASE_ADDRESS_0, &t32); | |
291 | pcibios_read_config_dword(bus, dev, PCI_BASE_ADDRESS_1, &t32); | |
292 | pcibios_read_config_word(bus, dev, PCI_COMMAND,&cmd); | |
293 | ||
294 | pcibios_write_config_word(bus, dev, PCI_COMMAND, PCI_COMMAND_IO | PCI_COMMAND_MEMORY); | |
295 | ||
296 | pcibios_write_config_dword(bus, dev, PCI_BASE_ADDRESS_0,0xffffffff); | |
297 | pcibios_read_config_dword(bus, dev, PCI_BASE_ADDRESS_0, &t32); | |
298 | ||
299 | /* This is a gross hack as OF only maps enough memory for the framebuffer and | |
300 | we want to use MMIO too. We should find out which chunk of address space | |
301 | we can use here */ | |
302 | pcibios_write_config_dword(bus,dev,PCI_BASE_ADDRESS_0,0xc6000000); | |
303 | ||
304 | /* unlock s3 */ | |
305 | ||
306 | outb(0x01, 0x3C3); | |
307 | ||
308 | outb(inb(0x03CC) | 1, 0x3c2); | |
309 | ||
310 | outw(IO_OUT16VAL(0x48, 0x38),0x03D4); | |
311 | outw(IO_OUT16VAL(0xA0, 0x39),0x03D4); | |
312 | outb(0x33,0x3d4); | |
313 | outw(IO_OUT16VAL((inb(0x3d5) & ~(0x2 | 0x10 | 0x40)) | | |
314 | 0x20, 0x33), 0x3d4); | |
315 | ||
316 | outw(IO_OUT16VAL(0x6, 0x8), 0x3c4); | |
317 | ||
318 | /* switch to MMIO only mode */ | |
319 | ||
320 | outb(0x58, 0x3d4); | |
321 | outw(IO_OUT16VAL(inb(0x3d5) | 3 | 0x10, 0x58), 0x3d4); | |
322 | outw(IO_OUT16VAL(8, 0x53), 0x3d4); | |
323 | ||
324 | /* switch off I/O accesses */ | |
325 | ||
326 | #if 0 | |
327 | pcibios_write_config_word(bus, dev, PCI_COMMAND, | |
328 | PCI_COMMAND_IO | PCI_COMMAND_MEMORY); | |
329 | #endif | |
330 | return 1; | |
331 | } | |
332 | ||
333 | return 0; | |
334 | } | |
335 | ||
336 | ||
337 | /* | |
338 | * Initialisation | |
339 | * We heavily rely on OF for the moment. This needs fixing. | |
340 | */ | |
341 | ||
342 | static void __init s3triofb_of_init(struct device_node *dp) | |
343 | { | |
344 | int i, *pp, len; | |
345 | unsigned long address, size; | |
346 | u_long *CursorBase; | |
347 | ||
348 | strncat(s3trio_name, dp->name, sizeof(s3trio_name)); | |
349 | s3trio_name[sizeof(s3trio_name)-1] = '\0'; | |
350 | strcpy(fb_fix.id, s3trio_name); | |
351 | ||
b04e3dd4 | 352 | if((pp = get_property(dp, "vendor-id", &len)) != NULL |
1da177e4 LT |
353 | && *pp!=PCI_VENDOR_ID_S3) { |
354 | printk("%s: can't find S3 Trio board\n", dp->full_name); | |
355 | return; | |
356 | } | |
357 | ||
b04e3dd4 | 358 | if((pp = get_property(dp, "device-id", &len)) != NULL |
1da177e4 LT |
359 | && *pp!=PCI_DEVICE_ID_S3_TRIO) { |
360 | printk("%s: can't find S3 Trio board\n", dp->full_name); | |
361 | return; | |
362 | } | |
363 | ||
b04e3dd4 | 364 | if ((pp = get_property(dp, "depth", &len)) != NULL |
1da177e4 LT |
365 | && len == sizeof(int) && *pp != 8) { |
366 | printk("%s: can't use depth = %d\n", dp->full_name, *pp); | |
367 | return; | |
368 | } | |
b04e3dd4 | 369 | if ((pp = get_property(dp, "width", &len)) != NULL |
1da177e4 LT |
370 | && len == sizeof(int)) |
371 | fb_var.xres = fb_var.xres_virtual = *pp; | |
b04e3dd4 | 372 | if ((pp = get_property(dp, "height", &len)) != NULL |
1da177e4 LT |
373 | && len == sizeof(int)) |
374 | fb_var.yres = fb_var.yres_virtual = *pp; | |
b04e3dd4 | 375 | if ((pp = get_property(dp, "linebytes", &len)) != NULL |
1da177e4 LT |
376 | && len == sizeof(int)) |
377 | fb_fix.line_length = *pp; | |
378 | else | |
379 | fb_fix.line_length = fb_var.xres_virtual; | |
380 | fb_fix.smem_len = fb_fix.line_length*fb_var.yres; | |
381 | ||
382 | address = 0xc6000000; | |
383 | size = 64*1024*1024; | |
384 | if (!request_mem_region(address, size, "S3triofb")) | |
385 | return; | |
386 | ||
387 | s3trio_init(dp); | |
388 | s3trio_base = ioremap(address, size); | |
389 | fb_fix.smem_start = address; | |
390 | fb_fix.type = FB_TYPE_PACKED_PIXELS; | |
391 | fb_fix.type_aux = 0; | |
392 | fb_fix.accel = FB_ACCEL_S3_TRIO64; | |
393 | fb_fix.mmio_start = address+0x1000000; | |
394 | fb_fix.mmio_len = 0x1000000; | |
395 | ||
396 | fb_fix.xpanstep = 1; | |
397 | fb_fix.ypanstep = 1; | |
398 | ||
399 | s3trio_resetaccel(); | |
400 | ||
401 | mem_out8(0x30, s3trio_base+0x1008000 + 0x03D4); | |
402 | mem_out8(0x2d, s3trio_base+0x1008000 + 0x03D4); | |
403 | mem_out8(0x2e, s3trio_base+0x1008000 + 0x03D4); | |
404 | ||
405 | mem_out8(0x50, s3trio_base+0x1008000 + 0x03D4); | |
406 | ||
407 | /* disable HW cursor */ | |
408 | ||
409 | mem_out8(0x39, s3trio_base+0x1008000 + 0x03D4); | |
410 | mem_out8(0xa0, s3trio_base+0x1008000 + 0x03D5); | |
411 | ||
412 | mem_out8(0x45, s3trio_base+0x1008000 + 0x03D4); | |
413 | mem_out8(0, s3trio_base+0x1008000 + 0x03D5); | |
414 | ||
415 | mem_out8(0x4e, s3trio_base+0x1008000 + 0x03D4); | |
416 | mem_out8(0, s3trio_base+0x1008000 + 0x03D5); | |
417 | ||
418 | mem_out8(0x4f, s3trio_base+0x1008000 + 0x03D4); | |
419 | mem_out8(0, s3trio_base+0x1008000 + 0x03D5); | |
420 | ||
421 | /* init HW cursor */ | |
422 | ||
423 | CursorBase = (u_long *)(s3trio_base + 2*1024*1024 - 0x400); | |
424 | for (i = 0; i < 8; i++) { | |
425 | *(CursorBase +(i*4)) = 0xffffff00; | |
426 | *(CursorBase+1+(i*4)) = 0xffff0000; | |
427 | *(CursorBase+2+(i*4)) = 0xffff0000; | |
428 | *(CursorBase+3+(i*4)) = 0xffff0000; | |
429 | } | |
430 | for (i = 8; i < 64; i++) { | |
431 | *(CursorBase +(i*4)) = 0xffff0000; | |
432 | *(CursorBase+1+(i*4)) = 0xffff0000; | |
433 | *(CursorBase+2+(i*4)) = 0xffff0000; | |
434 | *(CursorBase+3+(i*4)) = 0xffff0000; | |
435 | } | |
436 | ||
437 | ||
438 | mem_out8(0x4c, s3trio_base+0x1008000 + 0x03D4); | |
439 | mem_out8(((2*1024 - 1)&0xf00)>>8, s3trio_base+0x1008000 + 0x03D5); | |
440 | ||
441 | mem_out8(0x4d, s3trio_base+0x1008000 + 0x03D4); | |
442 | mem_out8((2*1024 - 1) & 0xff, s3trio_base+0x1008000 + 0x03D5); | |
443 | ||
444 | mem_out8(0x45, s3trio_base+0x1008000 + 0x03D4); | |
445 | mem_in8(s3trio_base+0x1008000 + 0x03D4); | |
446 | ||
447 | mem_out8(0x4a, s3trio_base+0x1008000 + 0x03D4); | |
448 | mem_out8(0x80, s3trio_base+0x1008000 + 0x03D5); | |
449 | mem_out8(0x80, s3trio_base+0x1008000 + 0x03D5); | |
450 | mem_out8(0x80, s3trio_base+0x1008000 + 0x03D5); | |
451 | ||
452 | mem_out8(0x4b, s3trio_base+0x1008000 + 0x03D4); | |
453 | mem_out8(0x00, s3trio_base+0x1008000 + 0x03D5); | |
454 | mem_out8(0x00, s3trio_base+0x1008000 + 0x03D5); | |
455 | mem_out8(0x00, s3trio_base+0x1008000 + 0x03D5); | |
456 | ||
457 | mem_out8(0x45, s3trio_base+0x1008000 + 0x03D4); | |
458 | mem_out8(0, s3trio_base+0x1008000 + 0x03D5); | |
459 | ||
460 | /* setup default color table */ | |
461 | ||
462 | for(i = 0; i < 16; i++) { | |
463 | int j = color_table[i]; | |
464 | palette[i].red=default_red[j]; | |
465 | palette[i].green=default_grn[j]; | |
466 | palette[i].blue=default_blu[j]; | |
467 | } | |
468 | ||
469 | s3trio_setcolreg(255, 56, 100, 160, 0, NULL /* not used */); | |
470 | s3trio_setcolreg(254, 0, 0, 0, 0, NULL /* not used */); | |
471 | memset((char *)s3trio_base, 0, 640*480); | |
472 | ||
473 | #if 0 | |
474 | Trio_RectFill(0, 0, 90, 90, 7, 1); | |
475 | #endif | |
476 | ||
477 | fb_fix.visual = FB_VISUAL_PSEUDOCOLOR ; | |
478 | fb_var.xoffset = fb_var.yoffset = 0; | |
479 | fb_var.bits_per_pixel = 8; | |
480 | fb_var.grayscale = 0; | |
481 | fb_var.red.offset = fb_var.green.offset = fb_var.blue.offset = 0; | |
482 | fb_var.red.length = fb_var.green.length = fb_var.blue.length = 8; | |
483 | fb_var.red.msb_right = fb_var.green.msb_right = fb_var.blue.msb_right = 0; | |
484 | fb_var.transp.offset = fb_var.transp.length = fb_var.transp.msb_right = 0; | |
485 | fb_var.nonstd = 0; | |
486 | fb_var.activate = 0; | |
487 | fb_var.height = fb_var.width = -1; | |
488 | fb_var.accel_flags = FB_ACCELF_TEXT; | |
489 | #warning FIXME: always obey fb_var.accel_flags | |
490 | fb_var.pixclock = 1; | |
491 | fb_var.left_margin = fb_var.right_margin = 0; | |
492 | fb_var.upper_margin = fb_var.lower_margin = 0; | |
493 | fb_var.hsync_len = fb_var.vsync_len = 0; | |
494 | fb_var.sync = 0; | |
495 | fb_var.vmode = FB_VMODE_NONINTERLACED; | |
496 | ||
497 | disp.var = fb_var; | |
498 | disp.cmap.start = 0; | |
499 | disp.cmap.len = 0; | |
500 | disp.cmap.red = disp.cmap.green = disp.cmap.blue = disp.cmap.transp = NULL; | |
501 | disp.visual = fb_fix.visual; | |
502 | disp.type = fb_fix.type; | |
503 | disp.type_aux = fb_fix.type_aux; | |
504 | disp.ypanstep = 0; | |
505 | disp.ywrapstep = 0; | |
506 | disp.line_length = fb_fix.line_length; | |
507 | disp.can_soft_blank = 1; | |
508 | disp.inverse = 0; | |
509 | #ifdef FBCON_HAS_CFB8 | |
510 | if (fb_var.accel_flags & FB_ACCELF_TEXT) | |
511 | disp.dispsw = &fbcon_trio8; | |
512 | else | |
513 | disp.dispsw = &fbcon_cfb8; | |
514 | #else | |
515 | disp.dispsw = &fbcon_dummy; | |
516 | #endif | |
517 | disp.scrollmode = fb_var.accel_flags & FB_ACCELF_TEXT ? 0 : SCROLL_YREDRAW; | |
518 | ||
519 | strcpy(fb_info.modename, "Trio64 "); | |
520 | strncat(fb_info.modename, dp->full_name, sizeof(fb_info.modename)); | |
521 | fb_info.currcon = -1; | |
522 | fb_info.fbops = &s3trio_ops; | |
523 | fb_info.screen_base = s3trio_base; | |
524 | #if 0 | |
525 | fb_info.fbvar_num = 1; | |
526 | fb_info.fbvar = &fb_var; | |
527 | #endif | |
528 | fb_info.disp = &disp; | |
529 | fb_info.fontname[0] = '\0'; | |
530 | fb_info.changevar = NULL; | |
531 | fb_info.switch_con = &s3triofbcon_switch; | |
532 | fb_info.updatevar = &s3triofbcon_updatevar; | |
533 | #if 0 | |
534 | fb_info.setcmap = &s3triofbcon_setcmap; | |
535 | #endif | |
536 | ||
537 | fb_info.flags = FBINFO_FLAG_DEFAULT; | |
538 | if (register_framebuffer(&fb_info) < 0) | |
539 | return; | |
540 | ||
541 | printk("fb%d: S3 Trio frame buffer device on %s\n", | |
542 | fb_info.node, dp->full_name); | |
543 | } | |
544 | ||
545 | ||
546 | static int s3triofbcon_switch(int con, struct fb_info *info) | |
547 | { | |
548 | /* Do we have to save the colormap? */ | |
549 | if (fb_display[info->currcon].cmap.len) | |
550 | fb_get_cmap(&fb_display[info->currcon].cmap, 1, s3trio_getcolreg, info); | |
551 | ||
552 | info->currcon = con; | |
553 | /* Install new colormap */ | |
554 | do_install_cmap(con,info); | |
555 | return 0; | |
556 | } | |
557 | ||
558 | /* | |
559 | * Update the `var' structure (called by fbcon.c) | |
560 | */ | |
561 | ||
562 | static int s3triofbcon_updatevar(int con, struct fb_info *info) | |
563 | { | |
564 | /* Nothing */ | |
565 | return 0; | |
566 | } | |
567 | ||
568 | /* | |
569 | * Blank the display. | |
570 | */ | |
571 | ||
572 | static int s3triofb_blank(int blank, struct fb_info *info) | |
573 | { | |
574 | unsigned char x; | |
575 | ||
576 | mem_out8(0x1, s3trio_base+0x1008000 + 0x03c4); | |
577 | x = mem_in8(s3trio_base+0x1008000 + 0x03c5); | |
578 | mem_out8((x & (~0x20)) | (blank << 5), s3trio_base+0x1008000 + 0x03c5); | |
579 | return 0; | |
580 | } | |
581 | ||
582 | /* | |
583 | * Read a single color register and split it into | |
584 | * colors/transparent. Return != 0 for invalid regno. | |
585 | */ | |
586 | ||
587 | static int s3trio_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue, | |
588 | u_int *transp, struct fb_info *info) | |
589 | { | |
590 | if (regno > 255) | |
591 | return 1; | |
592 | *red = (palette[regno].red << 8) | palette[regno].red; | |
593 | *green = (palette[regno].green << 8) | palette[regno].green; | |
594 | *blue = (palette[regno].blue << 8) | palette[regno].blue; | |
595 | *transp = 0; | |
596 | return 0; | |
597 | } | |
598 | ||
599 | ||
600 | /* | |
601 | * Set a single color register. Return != 0 for invalid regno. | |
602 | */ | |
603 | ||
604 | static int s3trio_setcolreg(u_int regno, u_int red, u_int green, u_int blue, | |
605 | u_int transp, struct fb_info *info) | |
606 | { | |
607 | if (regno > 255) | |
608 | return 1; | |
609 | ||
610 | red >>= 8; | |
611 | green >>= 8; | |
612 | blue >>= 8; | |
613 | palette[regno].red = red; | |
614 | palette[regno].green = green; | |
615 | palette[regno].blue = blue; | |
616 | ||
617 | mem_out8(regno,s3trio_base+0x1008000 + 0x3c8); | |
618 | mem_out8((red & 0xff) >> 2,s3trio_base+0x1008000 + 0x3c9); | |
619 | mem_out8((green & 0xff) >> 2,s3trio_base+0x1008000 + 0x3c9); | |
620 | mem_out8((blue & 0xff) >> 2,s3trio_base+0x1008000 + 0x3c9); | |
621 | ||
622 | return 0; | |
623 | } | |
624 | ||
625 | static void Trio_WaitQueue(u_short fifo) { | |
626 | ||
627 | u_short status; | |
628 | ||
629 | do | |
630 | { | |
631 | status = mem_in16(s3trio_base + 0x1000000 + 0x9AE8); | |
632 | } while (!(status & fifo)); | |
633 | ||
634 | } | |
635 | ||
636 | static void Trio_WaitBlit(void) { | |
637 | ||
638 | u_short status; | |
639 | ||
640 | do | |
641 | { | |
642 | status = mem_in16(s3trio_base + 0x1000000 + 0x9AE8); | |
643 | } while (status & 0x200); | |
644 | ||
645 | } | |
646 | ||
647 | static void Trio_BitBLT(u_short curx, u_short cury, u_short destx, | |
648 | u_short desty, u_short width, u_short height, | |
649 | u_short mode) { | |
650 | ||
651 | u_short blitcmd = 0xc011; | |
652 | ||
653 | /* Set drawing direction */ | |
654 | /* -Y, X maj, -X (default) */ | |
655 | ||
656 | if (curx > destx) | |
657 | blitcmd |= 0x0020; /* Drawing direction +X */ | |
658 | else { | |
659 | curx += (width - 1); | |
660 | destx += (width - 1); | |
661 | } | |
662 | ||
663 | if (cury > desty) | |
664 | blitcmd |= 0x0080; /* Drawing direction +Y */ | |
665 | else { | |
666 | cury += (height - 1); | |
667 | desty += (height - 1); | |
668 | } | |
669 | ||
670 | Trio_WaitQueue(0x0400); | |
671 | ||
672 | outw(0xa000, 0xBEE8); | |
673 | outw(0x60 | mode, 0xBAE8); | |
674 | ||
675 | outw(curx, 0x86E8); | |
676 | outw(cury, 0x82E8); | |
677 | ||
678 | outw(destx, 0x8EE8); | |
679 | outw(desty, 0x8AE8); | |
680 | ||
681 | outw(height - 1, 0xBEE8); | |
682 | outw(width - 1, 0x96E8); | |
683 | ||
684 | outw(blitcmd, 0x9AE8); | |
685 | ||
686 | } | |
687 | ||
688 | static void Trio_RectFill(u_short x, u_short y, u_short width, u_short height, | |
689 | u_short mode, u_short color) { | |
690 | ||
691 | u_short blitcmd = 0x40b1; | |
692 | ||
693 | Trio_WaitQueue(0x0400); | |
694 | ||
695 | outw(0xa000, 0xBEE8); | |
696 | outw((0x20 | mode), 0xBAE8); | |
697 | outw(0xe000, 0xBEE8); | |
698 | outw(color, 0xA6E8); | |
699 | outw(x, 0x86E8); | |
700 | outw(y, 0x82E8); | |
701 | outw((height - 1), 0xBEE8); | |
702 | outw((width - 1), 0x96E8); | |
703 | outw(blitcmd, 0x9AE8); | |
704 | ||
705 | } | |
706 | ||
707 | ||
708 | static void Trio_MoveCursor(u_short x, u_short y) { | |
709 | ||
710 | mem_out8(0x39, s3trio_base + 0x1008000 + 0x3d4); | |
711 | mem_out8(0xa0, s3trio_base + 0x1008000 + 0x3d5); | |
712 | ||
713 | mem_out8(0x46, s3trio_base + 0x1008000 + 0x3d4); | |
714 | mem_out8((x & 0x0700) >> 8, s3trio_base + 0x1008000 + 0x3d5); | |
715 | mem_out8(0x47, s3trio_base + 0x1008000 + 0x3d4); | |
716 | mem_out8(x & 0x00ff, s3trio_base + 0x1008000 + 0x3d5); | |
717 | ||
718 | mem_out8(0x48, s3trio_base + 0x1008000 + 0x3d4); | |
719 | mem_out8((y & 0x0700) >> 8, s3trio_base + 0x1008000 + 0x3d5); | |
720 | mem_out8(0x49, s3trio_base + 0x1008000 + 0x3d4); | |
721 | mem_out8(y & 0x00ff, s3trio_base + 0x1008000 + 0x3d5); | |
722 | ||
723 | } | |
724 | ||
725 | ||
726 | /* | |
727 | * Text console acceleration | |
728 | */ | |
729 | ||
730 | #ifdef FBCON_HAS_CFB8 | |
731 | static void fbcon_trio8_bmove(struct display *p, int sy, int sx, int dy, | |
732 | int dx, int height, int width) | |
733 | { | |
734 | sx *= 8; dx *= 8; width *= 8; | |
735 | Trio_BitBLT((u_short)sx, (u_short)(sy*fontheight(p)), (u_short)dx, | |
736 | (u_short)(dy*fontheight(p)), (u_short)width, | |
737 | (u_short)(height*fontheight(p)), (u_short)S3_NEW); | |
738 | } | |
739 | ||
740 | static void fbcon_trio8_clear(struct vc_data *conp, struct display *p, int sy, | |
741 | int sx, int height, int width) | |
742 | { | |
743 | unsigned char bg; | |
744 | ||
745 | sx *= 8; width *= 8; | |
746 | bg = attr_bgcol_ec(p,conp); | |
747 | Trio_RectFill((u_short)sx, | |
748 | (u_short)(sy*fontheight(p)), | |
749 | (u_short)width, | |
750 | (u_short)(height*fontheight(p)), | |
751 | (u_short)S3_NEW, | |
752 | (u_short)bg); | |
753 | } | |
754 | ||
755 | static void fbcon_trio8_putc(struct vc_data *conp, struct display *p, int c, | |
756 | int yy, int xx) | |
757 | { | |
758 | Trio_WaitBlit(); | |
759 | fbcon_cfb8_putc(conp, p, c, yy, xx); | |
760 | } | |
761 | ||
762 | static void fbcon_trio8_putcs(struct vc_data *conp, struct display *p, | |
763 | const unsigned short *s, int count, int yy, int xx) | |
764 | { | |
765 | Trio_WaitBlit(); | |
766 | fbcon_cfb8_putcs(conp, p, s, count, yy, xx); | |
767 | } | |
768 | ||
769 | static void fbcon_trio8_revc(struct display *p, int xx, int yy) | |
770 | { | |
771 | Trio_WaitBlit(); | |
772 | fbcon_cfb8_revc(p, xx, yy); | |
773 | } | |
774 | ||
775 | static struct display_switch fbcon_trio8 = { | |
776 | .setup = fbcon_cfb8_setup, | |
777 | .bmove = fbcon_trio8_bmove, | |
778 | .clear = fbcon_trio8_clear, | |
779 | .putc = fbcon_trio8_putc, | |
780 | .putcs = fbcon_trio8_putcs, | |
781 | .revc = fbcon_trio8_revc, | |
782 | .clear_margins = fbcon_cfb8_clear_margins, | |
783 | .fontwidthmask = FONTWIDTH(8) | |
784 | }; | |
785 | #endif | |
786 | ||
787 | MODULE_LICENSE("GPL"); |