2 * linux/drivers/video/tgafb.c -- DEC 21030 TGA frame buffer device
4 * Copyright (C) 1995 Jay Estabrook
5 * Copyright (C) 1997 Geert Uytterhoeven
6 * Copyright (C) 1999,2000 Martin Lucina, Tom Zerucha
7 * Copyright (C) 2002 Richard Henderson
9 * This file is subject to the terms and conditions of the GNU General Public
10 * License. See the file COPYING in the main directory of this archive for
14 #include <linux/module.h>
15 #include <linux/kernel.h>
16 #include <linux/sched.h>
17 #include <linux/errno.h>
18 #include <linux/string.h>
20 #include <linux/tty.h>
21 #include <linux/slab.h>
22 #include <linux/delay.h>
23 #include <linux/init.h>
25 #include <linux/pci.h>
26 #include <linux/selection.h>
28 #include <video/tgafb.h>
29 #include <linux/selection.h>
35 static int tgafb_check_var(struct fb_var_screeninfo *, struct fb_info *);
36 static int tgafb_set_par(struct fb_info *);
37 static void tgafb_set_pll(struct tga_par *, int);
38 static int tgafb_setcolreg(unsigned, unsigned, unsigned, unsigned,
39 unsigned, struct fb_info *);
40 static int tgafb_blank(int, struct fb_info *);
41 static void tgafb_init_fix(struct fb_info *);
43 static void tgafb_imageblit(struct fb_info *, const struct fb_image *);
44 static void tgafb_fillrect(struct fb_info *, const struct fb_fillrect *);
45 static void tgafb_copyarea(struct fb_info *, const struct fb_copyarea *);
47 static int tgafb_pci_register(struct pci_dev *, const struct pci_device_id *);
48 static void tgafb_pci_unregister(struct pci_dev *);
50 static const char *mode_option = "640x480@60";
54 * Frame buffer operations
57 static struct fb_ops tgafb_ops = {
59 .fb_check_var = tgafb_check_var,
60 .fb_set_par = tgafb_set_par,
61 .fb_setcolreg = tgafb_setcolreg,
62 .fb_blank = tgafb_blank,
63 .fb_fillrect = tgafb_fillrect,
64 .fb_copyarea = tgafb_copyarea,
65 .fb_imageblit = tgafb_imageblit,
70 * PCI registration operations
73 static struct pci_device_id const tgafb_pci_table[] = {
74 { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TGA, PCI_ANY_ID, PCI_ANY_ID,
78 static struct pci_driver tgafb_driver = {
80 .id_table = tgafb_pci_table,
81 .probe = tgafb_pci_register,
82 .remove = __devexit_p(tgafb_pci_unregister),
87 * tgafb_check_var - Optional function. Validates a var passed in.
88 * @var: frame buffer variable screen structure
89 * @info: frame buffer structure that represents a single frame buffer
92 tgafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
94 struct tga_par *par = (struct tga_par *)info->par;
96 if (par->tga_type == TGA_TYPE_8PLANE) {
97 if (var->bits_per_pixel != 8)
100 if (var->bits_per_pixel != 32)
104 if (var->xres_virtual != var->xres || var->yres_virtual != var->yres)
108 if (1000000000 / var->pixclock > TGA_PLL_MAX_FREQ)
110 if ((var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED)
113 /* Some of the acceleration routines assume the line width is
114 a multiple of 64 bytes. */
115 if (var->xres * (par->tga_type == TGA_TYPE_8PLANE ? 1 : 4) % 64)
122 * tgafb_set_par - Optional function. Alters the hardware state.
123 * @info: frame buffer structure that represents a single frame buffer
126 tgafb_set_par(struct fb_info *info)
128 static unsigned int const deep_presets[4] = {
134 static unsigned int const rasterop_presets[4] = {
140 static unsigned int const mode_presets[4] = {
146 static unsigned int const base_addr_presets[4] = {
153 struct tga_par *par = (struct tga_par *) info->par;
154 u32 htimings, vtimings, pll_freq;
158 /* Encode video timings. */
159 htimings = (((info->var.xres/4) & TGA_HORIZ_ACT_LSB)
160 | (((info->var.xres/4) & 0x600 << 19) & TGA_HORIZ_ACT_MSB));
161 vtimings = (info->var.yres & TGA_VERT_ACTIVE);
162 htimings |= ((info->var.right_margin/4) << 9) & TGA_HORIZ_FP;
163 vtimings |= (info->var.lower_margin << 11) & TGA_VERT_FP;
164 htimings |= ((info->var.hsync_len/4) << 14) & TGA_HORIZ_SYNC;
165 vtimings |= (info->var.vsync_len << 16) & TGA_VERT_SYNC;
166 htimings |= ((info->var.left_margin/4) << 21) & TGA_HORIZ_BP;
167 vtimings |= (info->var.upper_margin << 22) & TGA_VERT_BP;
169 if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
170 htimings |= TGA_HORIZ_POLARITY;
171 if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
172 vtimings |= TGA_VERT_POLARITY;
174 par->htimings = htimings;
175 par->vtimings = vtimings;
177 par->sync_on_green = !!(info->var.sync & FB_SYNC_ON_GREEN);
179 /* Store other useful values in par. */
180 par->xres = info->var.xres;
181 par->yres = info->var.yres;
182 par->pll_freq = pll_freq = 1000000000 / info->var.pixclock;
183 par->bits_per_pixel = info->var.bits_per_pixel;
185 tga_type = par->tga_type;
187 /* First, disable video. */
188 TGA_WRITE_REG(par, TGA_VALID_VIDEO | TGA_VALID_BLANK, TGA_VALID_REG);
190 /* Write the DEEP register. */
191 while (TGA_READ_REG(par, TGA_CMD_STAT_REG) & 1) /* wait for not busy */
194 TGA_WRITE_REG(par, deep_presets[tga_type], TGA_DEEP_REG);
195 while (TGA_READ_REG(par, TGA_CMD_STAT_REG) & 1) /* wait for not busy */
199 /* Write some more registers. */
200 TGA_WRITE_REG(par, rasterop_presets[tga_type], TGA_RASTEROP_REG);
201 TGA_WRITE_REG(par, mode_presets[tga_type], TGA_MODE_REG);
202 TGA_WRITE_REG(par, base_addr_presets[tga_type], TGA_BASE_ADDR_REG);
204 /* Calculate & write the PLL. */
205 tgafb_set_pll(par, pll_freq);
207 /* Write some more registers. */
208 TGA_WRITE_REG(par, 0xffffffff, TGA_PLANEMASK_REG);
209 TGA_WRITE_REG(par, 0xffffffff, TGA_PIXELMASK_REG);
211 /* Init video timing regs. */
212 TGA_WRITE_REG(par, htimings, TGA_HORIZ_REG);
213 TGA_WRITE_REG(par, vtimings, TGA_VERT_REG);
215 /* Initalise RAMDAC. */
216 if (tga_type == TGA_TYPE_8PLANE) {
218 /* Init BT485 RAMDAC registers. */
219 BT485_WRITE(par, 0xa2 | (par->sync_on_green ? 0x8 : 0x0),
221 BT485_WRITE(par, 0x01, BT485_ADDR_PAL_WRITE);
222 BT485_WRITE(par, 0x14, BT485_CMD_3); /* cursor 64x64 */
223 BT485_WRITE(par, 0x40, BT485_CMD_1);
224 BT485_WRITE(par, 0x20, BT485_CMD_2); /* cursor off, for now */
225 BT485_WRITE(par, 0xff, BT485_PIXEL_MASK);
227 /* Fill palette registers. */
228 BT485_WRITE(par, 0x00, BT485_ADDR_PAL_WRITE);
229 TGA_WRITE_REG(par, BT485_DATA_PAL, TGA_RAMDAC_SETUP_REG);
231 for (i = 0; i < 16; i++) {
233 TGA_WRITE_REG(par, default_red[j]|(BT485_DATA_PAL<<8),
235 TGA_WRITE_REG(par, default_grn[j]|(BT485_DATA_PAL<<8),
237 TGA_WRITE_REG(par, default_blu[j]|(BT485_DATA_PAL<<8),
240 for (i = 0; i < 240*3; i += 4) {
241 TGA_WRITE_REG(par, 0x55|(BT485_DATA_PAL<<8),
243 TGA_WRITE_REG(par, 0x00|(BT485_DATA_PAL<<8),
245 TGA_WRITE_REG(par, 0x00|(BT485_DATA_PAL<<8),
247 TGA_WRITE_REG(par, 0x00|(BT485_DATA_PAL<<8),
251 } else { /* 24-plane or 24plusZ */
253 /* Init BT463 registers. */
254 BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_0, 0x40);
255 BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_1, 0x08);
256 BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_2,
257 (par->sync_on_green ? 0x80 : 0x40));
259 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_0, 0xff);
260 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_1, 0xff);
261 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_2, 0xff);
262 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_3, 0x0f);
264 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_0, 0x00);
265 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_1, 0x00);
266 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_2, 0x00);
267 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_3, 0x00);
269 /* Fill the palette. */
270 BT463_LOAD_ADDR(par, 0x0000);
271 TGA_WRITE_REG(par, BT463_PALETTE<<2, TGA_RAMDAC_REG);
273 for (i = 0; i < 16; i++) {
275 TGA_WRITE_REG(par, default_red[j]|(BT463_PALETTE<<10),
277 TGA_WRITE_REG(par, default_grn[j]|(BT463_PALETTE<<10),
279 TGA_WRITE_REG(par, default_blu[j]|(BT463_PALETTE<<10),
282 for (i = 0; i < 512*3; i += 4) {
283 TGA_WRITE_REG(par, 0x55|(BT463_PALETTE<<10),
285 TGA_WRITE_REG(par, 0x00|(BT463_PALETTE<<10),
287 TGA_WRITE_REG(par, 0x00|(BT463_PALETTE<<10),
289 TGA_WRITE_REG(par, 0x00|(BT463_PALETTE<<10),
293 /* Fill window type table after start of vertical retrace. */
294 while (!(TGA_READ_REG(par, TGA_INTR_STAT_REG) & 0x01))
296 TGA_WRITE_REG(par, 0x01, TGA_INTR_STAT_REG);
298 while (!(TGA_READ_REG(par, TGA_INTR_STAT_REG) & 0x01))
300 TGA_WRITE_REG(par, 0x01, TGA_INTR_STAT_REG);
302 BT463_LOAD_ADDR(par, BT463_WINDOW_TYPE_BASE);
303 TGA_WRITE_REG(par, BT463_REG_ACC<<2, TGA_RAMDAC_SETUP_REG);
305 for (i = 0; i < 16; i++) {
306 TGA_WRITE_REG(par, 0x00|(BT463_REG_ACC<<10),
308 TGA_WRITE_REG(par, 0x01|(BT463_REG_ACC<<10),
310 TGA_WRITE_REG(par, 0x80|(BT463_REG_ACC<<10),
316 /* Finally, enable video scan (and pray for the monitor... :-) */
317 TGA_WRITE_REG(par, TGA_VALID_VIDEO, TGA_VALID_REG);
322 #define DIFFCHECK(X) \
325 int delta = f - (TGA_PLL_BASE_FREQ * (X)) / (r << shift); \
328 if (delta < min_diff) \
329 min_diff = delta, vm = m, va = a, vr = r; \
334 tgafb_set_pll(struct tga_par *par, int f)
336 int n, shift, base, min_diff, target;
337 int r,a,m,vm = 34, va = 1, vr = 30;
339 for (r = 0 ; r < 12 ; r++)
340 TGA_WRITE_REG(par, !r, TGA_CLOCK_REG);
342 if (f > TGA_PLL_MAX_FREQ)
343 f = TGA_PLL_MAX_FREQ;
345 if (f >= TGA_PLL_MAX_FREQ / 2)
347 else if (f >= TGA_PLL_MAX_FREQ / 4)
352 TGA_WRITE_REG(par, shift & 1, TGA_CLOCK_REG);
353 TGA_WRITE_REG(par, shift >> 1, TGA_CLOCK_REG);
355 for (r = 0 ; r < 10 ; r++)
356 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
359 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
360 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
362 else if (f <= 200000) {
363 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
364 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
367 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
368 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
371 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
372 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
373 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
374 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
375 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
376 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
378 target = (f << shift) / TGA_PLL_BASE_FREQ;
379 min_diff = TGA_PLL_MAX_FREQ;
386 for (n = base < 7 ? 7 : base; n < base + target && n < 449; n++) {
387 m = ((n + 3) / 7) - 1;
389 DIFFCHECK((m + 1) * 7);
391 DIFFCHECK((m + 1) * 7);
402 for (r = 0; r < 8; r++)
403 TGA_WRITE_REG(par, (vm >> r) & 1, TGA_CLOCK_REG);
404 for (r = 0; r < 8 ; r++)
405 TGA_WRITE_REG(par, (va >> r) & 1, TGA_CLOCK_REG);
406 for (r = 0; r < 7 ; r++)
407 TGA_WRITE_REG(par, (vr >> r) & 1, TGA_CLOCK_REG);
408 TGA_WRITE_REG(par, ((vr >> 7) & 1)|2, TGA_CLOCK_REG);
413 * tgafb_setcolreg - Optional function. Sets a color register.
414 * @regno: boolean, 0 copy local, 1 get_user() function
415 * @red: frame buffer colormap structure
416 * @green: The green value which can be up to 16 bits wide
417 * @blue: The blue value which can be up to 16 bits wide.
418 * @transp: If supported the alpha value which can be up to 16 bits wide.
419 * @info: frame buffer info structure
422 tgafb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue,
423 unsigned transp, struct fb_info *info)
425 struct tga_par *par = (struct tga_par *) info->par;
433 if (par->tga_type == TGA_TYPE_8PLANE) {
434 BT485_WRITE(par, regno, BT485_ADDR_PAL_WRITE);
435 TGA_WRITE_REG(par, BT485_DATA_PAL, TGA_RAMDAC_SETUP_REG);
436 TGA_WRITE_REG(par, red|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG);
437 TGA_WRITE_REG(par, green|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG);
438 TGA_WRITE_REG(par, blue|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG);
439 } else if (regno < 16) {
440 u32 value = (red << 16) | (green << 8) | blue;
441 ((u32 *)info->pseudo_palette)[regno] = value;
449 * tgafb_blank - Optional function. Blanks the display.
450 * @blank_mode: the blank mode we want.
451 * @info: frame buffer structure that represents a single frame buffer
454 tgafb_blank(int blank, struct fb_info *info)
456 struct tga_par *par = (struct tga_par *) info->par;
457 u32 vhcr, vvcr, vvvr;
460 local_irq_save(flags);
462 vhcr = TGA_READ_REG(par, TGA_HORIZ_REG);
463 vvcr = TGA_READ_REG(par, TGA_VERT_REG);
464 vvvr = TGA_READ_REG(par, TGA_VALID_REG);
465 vvvr &= ~(TGA_VALID_VIDEO | TGA_VALID_BLANK);
468 case FB_BLANK_UNBLANK: /* Unblanking */
469 if (par->vesa_blanked) {
470 TGA_WRITE_REG(par, vhcr & 0xbfffffff, TGA_HORIZ_REG);
471 TGA_WRITE_REG(par, vvcr & 0xbfffffff, TGA_VERT_REG);
472 par->vesa_blanked = 0;
474 TGA_WRITE_REG(par, vvvr | TGA_VALID_VIDEO, TGA_VALID_REG);
477 case FB_BLANK_NORMAL: /* Normal blanking */
478 TGA_WRITE_REG(par, vvvr | TGA_VALID_VIDEO | TGA_VALID_BLANK,
482 case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */
483 TGA_WRITE_REG(par, vvcr | 0x40000000, TGA_VERT_REG);
484 TGA_WRITE_REG(par, vvvr | TGA_VALID_BLANK, TGA_VALID_REG);
485 par->vesa_blanked = 1;
488 case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */
489 TGA_WRITE_REG(par, vhcr | 0x40000000, TGA_HORIZ_REG);
490 TGA_WRITE_REG(par, vvvr | TGA_VALID_BLANK, TGA_VALID_REG);
491 par->vesa_blanked = 1;
494 case FB_BLANK_POWERDOWN: /* Poweroff */
495 TGA_WRITE_REG(par, vhcr | 0x40000000, TGA_HORIZ_REG);
496 TGA_WRITE_REG(par, vvcr | 0x40000000, TGA_VERT_REG);
497 TGA_WRITE_REG(par, vvvr | TGA_VALID_BLANK, TGA_VALID_REG);
498 par->vesa_blanked = 1;
502 local_irq_restore(flags);
512 * tgafb_imageblit - REQUIRED function. Can use generic routines if
513 * non acclerated hardware and packed pixel based.
514 * Copies a image from system memory to the screen.
516 * @info: frame buffer structure that represents a single frame buffer
517 * @image: structure defining the image.
520 tgafb_imageblit(struct fb_info *info, const struct fb_image *image)
522 static unsigned char const bitrev[256] = {
523 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
524 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
525 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
526 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
527 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
528 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
529 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
530 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
531 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
532 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
533 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
534 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
535 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
536 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
537 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
538 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
539 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
540 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
541 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
542 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
543 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
544 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
545 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
546 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
547 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
548 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
549 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
550 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
551 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
552 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
553 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
554 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
557 struct tga_par *par = (struct tga_par *) info->par;
558 u32 fgcolor, bgcolor, dx, dy, width, height, vxres, vyres, pixelmask;
559 unsigned long rincr, line_length, shift, pos, is8bpp;
561 const unsigned char *data;
562 void __iomem *regs_base;
563 void __iomem *fb_base;
567 width = image->width;
568 height = image->height;
569 vxres = info->var.xres_virtual;
570 vyres = info->var.yres_virtual;
571 line_length = info->fix.line_length;
572 rincr = (width + 7) / 8;
574 /* Crop the image to the screen. */
575 if (dx > vxres || dy > vyres)
577 if (dx + width > vxres)
579 if (dy + height > vyres)
582 /* For copies that aren't pixel expansion, there's little we
583 can do better than the generic code. */
584 /* ??? There is a DMA write mode; I wonder if that could be
585 made to pull the data from the image buffer... */
586 if (image->depth > 1) {
587 cfb_imageblit(info, image);
591 regs_base = par->tga_regs_base;
592 fb_base = par->tga_fb_base;
593 is8bpp = info->var.bits_per_pixel == 8;
595 /* Expand the color values to fill 32-bits. */
596 /* ??? Would be nice to notice colour changes elsewhere, so
597 that we can do this only when necessary. */
598 fgcolor = image->fg_color;
599 bgcolor = image->bg_color;
601 fgcolor |= fgcolor << 8;
602 fgcolor |= fgcolor << 16;
603 bgcolor |= bgcolor << 8;
604 bgcolor |= bgcolor << 16;
607 fgcolor = ((u32 *)info->pseudo_palette)[fgcolor];
609 bgcolor = ((u32 *)info->pseudo_palette)[bgcolor];
611 __raw_writel(fgcolor, regs_base + TGA_FOREGROUND_REG);
612 __raw_writel(bgcolor, regs_base + TGA_BACKGROUND_REG);
614 /* Acquire proper alignment; set up the PIXELMASK register
615 so that we only write the proper character cell. */
616 pos = dy * line_length;
623 shift = (pos & 7) >> 2;
627 data = (const unsigned char *) image->data;
629 /* Enable opaque stipple mode. */
631 ? TGA_MODE_SBM_8BPP | TGA_MODE_OPAQUE_STIPPLE
632 : TGA_MODE_SBM_24BPP | TGA_MODE_OPAQUE_STIPPLE),
633 regs_base + TGA_MODE_REG);
635 if (width + shift <= 32) {
636 unsigned long bwidth;
638 /* Handle common case of imaging a single character, in
639 a font less than 32 pixels wide. */
641 pixelmask = (1 << width) - 1;
643 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
646 bwidth = (width + 7) / 8;
648 for (i = 0; i < height; ++i) {
651 /* The image data is bit big endian; we need
653 for (j = 0; j < bwidth; ++j)
654 mask |= bitrev[data[j]] << (j * 8);
656 __raw_writel(mask << shift, fb_base + pos);
662 __raw_writel(0xffffffff, regs_base + TGA_PIXELMASK_REG);
663 } else if (shift == 0) {
664 unsigned long pos0 = pos;
665 const unsigned char *data0 = data;
666 unsigned long bincr = (is8bpp ? 8 : 8*4);
667 unsigned long bwidth;
669 /* Handle another common case in which accel_putcs
670 generates a large bitmap, which happens to be aligned.
671 Allow the tail to be misaligned. This case is
672 interesting because we've not got to hold partial
673 bytes across the words being written. */
677 bwidth = (width / 8) & -4;
678 for (i = 0; i < height; ++i) {
679 for (j = 0; j < bwidth; j += 4) {
681 mask |= bitrev[data[j+0]] << (0 * 8);
682 mask |= bitrev[data[j+1]] << (1 * 8);
683 mask |= bitrev[data[j+2]] << (2 * 8);
684 mask |= bitrev[data[j+3]] << (3 * 8);
685 __raw_writel(mask, fb_base + pos + j*bincr);
692 pixelmask = (1ul << (width & 31)) - 1;
694 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
697 pos = pos0 + bwidth*bincr;
698 data = data0 + bwidth;
699 bwidth = ((width & 31) + 7) / 8;
701 for (i = 0; i < height; ++i) {
703 for (j = 0; j < bwidth; ++j)
704 mask |= bitrev[data[j]] << (j * 8);
705 __raw_writel(mask, fb_base + pos);
710 __raw_writel(0xffffffff, regs_base + TGA_PIXELMASK_REG);
713 unsigned long pos0 = pos;
714 const unsigned char *data0 = data;
715 unsigned long bincr = (is8bpp ? 8 : 8*4);
716 unsigned long bwidth;
718 /* Finally, handle the generic case of misaligned start.
719 Here we split the write into 16-bit spans. This allows
720 us to use only one pixel mask, instead of four as would
721 be required by writing 24-bit spans. */
723 pixelmask = 0xffff << shift;
724 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
727 bwidth = (width / 8) & -2;
728 for (i = 0; i < height; ++i) {
729 for (j = 0; j < bwidth; j += 2) {
731 mask |= bitrev[data[j+0]] << (0 * 8);
732 mask |= bitrev[data[j+1]] << (1 * 8);
734 __raw_writel(mask, fb_base + pos + j*bincr);
741 pixelmask = ((1ul << (width & 15)) - 1) << shift;
743 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
746 pos = pos0 + bwidth*bincr;
747 data = data0 + bwidth;
748 bwidth = (width & 15) > 8;
750 for (i = 0; i < height; ++i) {
751 u32 mask = bitrev[data[0]];
753 mask |= bitrev[data[1]] << 8;
755 __raw_writel(mask, fb_base + pos);
761 __raw_writel(0xffffffff, regs_base + TGA_PIXELMASK_REG);
764 /* Disable opaque stipple mode. */
766 ? TGA_MODE_SBM_8BPP | TGA_MODE_SIMPLE
767 : TGA_MODE_SBM_24BPP | TGA_MODE_SIMPLE),
768 regs_base + TGA_MODE_REG);
772 * tgafb_fillrect - REQUIRED function. Can use generic routines if
773 * non acclerated hardware and packed pixel based.
774 * Draws a rectangle on the screen.
776 * @info: frame buffer structure that represents a single frame buffer
777 * @rect: structure defining the rectagle and operation.
780 tgafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
782 struct tga_par *par = (struct tga_par *) info->par;
783 int is8bpp = info->var.bits_per_pixel == 8;
784 u32 dx, dy, width, height, vxres, vyres, color;
785 unsigned long pos, align, line_length, i, j;
786 void __iomem *regs_base;
787 void __iomem *fb_base;
792 height = rect->height;
793 vxres = info->var.xres_virtual;
794 vyres = info->var.yres_virtual;
795 line_length = info->fix.line_length;
796 regs_base = par->tga_regs_base;
797 fb_base = par->tga_fb_base;
799 /* Crop the rectangle to the screen. */
800 if (dx > vxres || dy > vyres || !width || !height)
802 if (dx + width > vxres)
804 if (dy + height > vyres)
807 pos = dy * line_length + dx * (is8bpp ? 1 : 4);
809 /* ??? We could implement ROP_XOR with opaque fill mode
810 and a RasterOp setting of GXxor, but as far as I can
811 tell, this mode is not actually used in the kernel.
812 Thus I am ignoring it for now. */
813 if (rect->rop != ROP_COPY) {
814 cfb_fillrect(info, rect);
818 /* Expand the color value to fill 8 pixels. */
822 color |= color << 16;
823 __raw_writel(color, regs_base + TGA_BLOCK_COLOR0_REG);
824 __raw_writel(color, regs_base + TGA_BLOCK_COLOR1_REG);
827 color = ((u32 *)info->pseudo_palette)[color];
828 __raw_writel(color, regs_base + TGA_BLOCK_COLOR0_REG);
829 __raw_writel(color, regs_base + TGA_BLOCK_COLOR1_REG);
830 __raw_writel(color, regs_base + TGA_BLOCK_COLOR2_REG);
831 __raw_writel(color, regs_base + TGA_BLOCK_COLOR3_REG);
832 __raw_writel(color, regs_base + TGA_BLOCK_COLOR4_REG);
833 __raw_writel(color, regs_base + TGA_BLOCK_COLOR5_REG);
834 __raw_writel(color, regs_base + TGA_BLOCK_COLOR6_REG);
835 __raw_writel(color, regs_base + TGA_BLOCK_COLOR7_REG);
838 /* The DATA register holds the fill mask for block fill mode.
839 Since we're not stippling, this is all ones. */
840 __raw_writel(0xffffffff, regs_base + TGA_DATA_REG);
842 /* Enable block fill mode. */
844 ? TGA_MODE_SBM_8BPP | TGA_MODE_BLOCK_FILL
845 : TGA_MODE_SBM_24BPP | TGA_MODE_BLOCK_FILL),
846 regs_base + TGA_MODE_REG);
849 /* We can fill 2k pixels per operation. Notice blocks that fit
850 the width of the screen so that we can take advantage of this
851 and fill more than one line per write. */
852 if (width == line_length)
853 width *= height, height = 1;
855 /* The write into the frame buffer must be aligned to 4 bytes,
856 but we are allowed to encode the offset within the word in
857 the data word written. */
858 align = (pos & 3) << 16;
864 data = (width - 1) | align;
866 for (i = 0; i < height; ++i) {
867 __raw_writel(data, fb_base + pos);
871 unsigned long Bpp = (is8bpp ? 1 : 4);
872 unsigned long nwidth = width & -2048;
875 fdata = (2048 - 1) | align;
876 ldata = ((width & 2047) - 1) | align;
878 for (i = 0; i < height; ++i) {
879 for (j = 0; j < nwidth; j += 2048)
880 __raw_writel(fdata, fb_base + pos + j*Bpp);
882 __raw_writel(ldata, fb_base + pos + j*Bpp);
888 /* Disable block fill mode. */
890 ? TGA_MODE_SBM_8BPP | TGA_MODE_SIMPLE
891 : TGA_MODE_SBM_24BPP | TGA_MODE_SIMPLE),
892 regs_base + TGA_MODE_REG);
896 * tgafb_copyarea - REQUIRED function. Can use generic routines if
897 * non acclerated hardware and packed pixel based.
898 * Copies on area of the screen to another area.
900 * @info: frame buffer structure that represents a single frame buffer
901 * @area: structure defining the source and destination.
904 /* Handle the special case of copying entire lines, e.g. during scrolling.
905 We can avoid a lot of needless computation in this case. In the 8bpp
906 case we need to use the COPY64 registers instead of mask writes into
907 the frame buffer to achieve maximum performance. */
910 copyarea_line_8bpp(struct fb_info *info, u32 dy, u32 sy,
911 u32 height, u32 width)
913 struct tga_par *par = (struct tga_par *) info->par;
914 void __iomem *tga_regs = par->tga_regs_base;
915 unsigned long dpos, spos, i, n64;
917 /* Set up the MODE and PIXELSHIFT registers. */
918 __raw_writel(TGA_MODE_SBM_8BPP | TGA_MODE_COPY, tga_regs+TGA_MODE_REG);
919 __raw_writel(0, tga_regs+TGA_PIXELSHIFT_REG);
922 n64 = (height * width) / 64;
925 spos = (sy + height) * width;
926 dpos = (dy + height) * width;
928 for (i = 0; i < n64; ++i) {
931 __raw_writel(spos, tga_regs+TGA_COPY64_SRC);
933 __raw_writel(dpos, tga_regs+TGA_COPY64_DST);
940 for (i = 0; i < n64; ++i) {
941 __raw_writel(spos, tga_regs+TGA_COPY64_SRC);
943 __raw_writel(dpos, tga_regs+TGA_COPY64_DST);
950 /* Reset the MODE register to normal. */
951 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG);
955 copyarea_line_32bpp(struct fb_info *info, u32 dy, u32 sy,
956 u32 height, u32 width)
958 struct tga_par *par = (struct tga_par *) info->par;
959 void __iomem *tga_regs = par->tga_regs_base;
960 void __iomem *tga_fb = par->tga_fb_base;
963 unsigned long i, n16;
965 /* Set up the MODE and PIXELSHIFT registers. */
966 __raw_writel(TGA_MODE_SBM_24BPP | TGA_MODE_COPY, tga_regs+TGA_MODE_REG);
967 __raw_writel(0, tga_regs+TGA_PIXELSHIFT_REG);
970 n16 = (height * width) / 16;
973 src = tga_fb + (sy + height) * width * 4;
974 dst = tga_fb + (dy + height) * width * 4;
976 for (i = 0; i < n16; ++i) {
979 __raw_writel(0xffff, src);
981 __raw_writel(0xffff, dst);
985 src = tga_fb + sy * width * 4;
986 dst = tga_fb + dy * width * 4;
988 for (i = 0; i < n16; ++i) {
989 __raw_writel(0xffff, src);
991 __raw_writel(0xffff, dst);
998 /* Reset the MODE register to normal. */
999 __raw_writel(TGA_MODE_SBM_24BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG);
1002 /* The general case of forward copy in 8bpp mode. */
1004 copyarea_foreward_8bpp(struct fb_info *info, u32 dx, u32 dy, u32 sx, u32 sy,
1005 u32 height, u32 width, u32 line_length)
1007 struct tga_par *par = (struct tga_par *) info->par;
1008 unsigned long i, copied, left;
1009 unsigned long dpos, spos, dalign, salign, yincr;
1010 u32 smask_first, dmask_first, dmask_last;
1011 int pixel_shift, need_prime, need_second;
1012 unsigned long n64, n32, xincr_first;
1013 void __iomem *tga_regs;
1014 void __iomem *tga_fb;
1016 yincr = line_length;
1023 /* Compute the offsets and alignments in the frame buffer.
1024 More than anything else, these control how we do copies. */
1025 dpos = dy * line_length + dx;
1026 spos = sy * line_length + sx;
1032 /* Compute the value for the PIXELSHIFT register. This controls
1033 both non-co-aligned source and destination and copy direction. */
1034 if (dalign >= salign)
1035 pixel_shift = dalign - salign;
1037 pixel_shift = 8 - (salign - dalign);
1039 /* Figure out if we need an additional priming step for the
1040 residue register. */
1041 need_prime = (salign > dalign);
1045 /* Begin by copying the leading unaligned destination. Copy enough
1046 to make the next destination address 32-byte aligned. */
1047 copied = 32 - (dalign + (dpos & 31));
1050 xincr_first = (copied + 7) & -8;
1051 smask_first = dmask_first = (1ul << copied) - 1;
1052 smask_first <<= salign;
1053 dmask_first <<= dalign + need_prime*8;
1054 if (need_prime && copied > 24)
1056 left = width - copied;
1058 /* Care for small copies. */
1059 if (copied > width) {
1061 t = (1ul << width) - 1;
1062 t <<= dalign + need_prime*8;
1067 /* Attempt to use 64-byte copies. This is only possible if the
1068 source and destination are co-aligned at 64 bytes. */
1069 n64 = need_second = 0;
1070 if ((dpos & 63) == (spos & 63)
1071 && (height == 1 || line_length % 64 == 0)) {
1072 /* We may need a 32-byte copy to ensure 64 byte alignment. */
1073 need_second = (dpos + xincr_first) & 63;
1074 if ((need_second & 32) != need_second)
1075 printk(KERN_ERR "tgafb: need_second wrong\n");
1076 if (left >= need_second + 64) {
1077 left -= need_second;
1084 /* Copy trailing full 32-byte sections. This will be the main
1085 loop if the 64 byte loop can't be used. */
1089 /* Copy the trailing unaligned destination. */
1090 dmask_last = (1ul << left) - 1;
1092 tga_regs = par->tga_regs_base;
1093 tga_fb = par->tga_fb_base;
1095 /* Set up the MODE and PIXELSHIFT registers. */
1096 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_COPY, tga_regs+TGA_MODE_REG);
1097 __raw_writel(pixel_shift, tga_regs+TGA_PIXELSHIFT_REG);
1100 for (i = 0; i < height; ++i) {
1105 sfb = tga_fb + spos;
1106 dfb = tga_fb + dpos;
1108 __raw_writel(smask_first, sfb);
1110 __raw_writel(dmask_first, dfb);
1117 __raw_writel(0xffffffff, sfb);
1119 __raw_writel(0xffffffff, dfb);
1125 if (n64 && (((unsigned long)sfb | (unsigned long)dfb) & 63))
1127 "tgafb: misaligned copy64 (s:%p, d:%p)\n",
1130 for (j = 0; j < n64; ++j) {
1131 __raw_writel(sfb - tga_fb, tga_regs+TGA_COPY64_SRC);
1133 __raw_writel(dfb - tga_fb, tga_regs+TGA_COPY64_DST);
1139 for (j = 0; j < n32; ++j) {
1140 __raw_writel(0xffffffff, sfb);
1142 __raw_writel(0xffffffff, dfb);
1149 __raw_writel(0xffffffff, sfb);
1151 __raw_writel(dmask_last, dfb);
1159 /* Reset the MODE register to normal. */
1160 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG);
1163 /* The (almost) general case of backward copy in 8bpp mode. */
1165 copyarea_backward_8bpp(struct fb_info *info, u32 dx, u32 dy, u32 sx, u32 sy,
1166 u32 height, u32 width, u32 line_length,
1167 const struct fb_copyarea *area)
1169 struct tga_par *par = (struct tga_par *) info->par;
1170 unsigned long i, left, yincr;
1171 unsigned long depos, sepos, dealign, sealign;
1172 u32 mask_first, mask_last;
1174 void __iomem *tga_regs;
1175 void __iomem *tga_fb;
1177 yincr = line_length;
1184 /* Compute the offsets and alignments in the frame buffer.
1185 More than anything else, these control how we do copies. */
1186 depos = dy * line_length + dx + width;
1187 sepos = sy * line_length + sx + width;
1188 dealign = depos & 7;
1189 sealign = sepos & 7;
1191 /* ??? The documentation appears to be incorrect (or very
1192 misleading) wrt how pixel shifting works in backward copy
1193 mode, i.e. when PIXELSHIFT is negative. I give up for now.
1194 Do handle the common case of co-aligned backward copies,
1195 but frob everything else back on generic code. */
1196 if (dealign != sealign) {
1197 cfb_copyarea(info, area);
1201 /* We begin the copy with the trailing pixels of the
1202 unaligned destination. */
1203 mask_first = (1ul << dealign) - 1;
1204 left = width - dealign;
1206 /* Care for small copies. */
1207 if (dealign > width) {
1208 mask_first ^= (1ul << (dealign - width)) - 1;
1212 /* Next copy full words at a time. */
1216 /* Finally copy the unaligned head of the span. */
1217 mask_last = -1 << (32 - left);
1219 tga_regs = par->tga_regs_base;
1220 tga_fb = par->tga_fb_base;
1222 /* Set up the MODE and PIXELSHIFT registers. */
1223 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_COPY, tga_regs+TGA_MODE_REG);
1224 __raw_writel(0, tga_regs+TGA_PIXELSHIFT_REG);
1227 for (i = 0; i < height; ++i) {
1232 sfb = tga_fb + sepos;
1233 dfb = tga_fb + depos;
1235 __raw_writel(mask_first, sfb);
1237 __raw_writel(mask_first, dfb);
1241 for (j = 0; j < n32; ++j) {
1244 __raw_writel(0xffffffff, sfb);
1246 __raw_writel(0xffffffff, dfb);
1253 __raw_writel(mask_last, sfb);
1255 __raw_writel(mask_last, dfb);
1263 /* Reset the MODE register to normal. */
1264 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG);
1268 tgafb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
1270 unsigned long dx, dy, width, height, sx, sy, vxres, vyres;
1271 unsigned long line_length, bpp;
1275 width = area->width;
1276 height = area->height;
1279 vxres = info->var.xres_virtual;
1280 vyres = info->var.yres_virtual;
1281 line_length = info->fix.line_length;
1283 /* The top left corners must be in the virtual screen. */
1284 if (dx > vxres || sx > vxres || dy > vyres || sy > vyres)
1287 /* Clip the destination. */
1288 if (dx + width > vxres)
1290 if (dy + height > vyres)
1291 height = vyres - dy;
1293 /* The source must be completely inside the virtual screen. */
1294 if (sx + width > vxres || sy + height > vyres)
1297 bpp = info->var.bits_per_pixel;
1299 /* Detect copies of the entire line. */
1300 if (width * (bpp >> 3) == line_length) {
1302 copyarea_line_8bpp(info, dy, sy, height, width);
1304 copyarea_line_32bpp(info, dy, sy, height, width);
1307 /* ??? The documentation is unclear to me exactly how the pixelshift
1308 register works in 32bpp mode. Since I don't have hardware to test,
1309 give up for now and fall back on the generic routines. */
1311 cfb_copyarea(info, area);
1313 /* Detect overlapping source and destination that requires
1315 else if (dy == sy && dx > sx && dx < sx + width)
1316 copyarea_backward_8bpp(info, dx, dy, sx, sy, height,
1317 width, line_length, area);
1319 copyarea_foreward_8bpp(info, dx, dy, sx, sy, height,
1320 width, line_length);
1329 tgafb_init_fix(struct fb_info *info)
1331 struct tga_par *par = (struct tga_par *)info->par;
1332 u8 tga_type = par->tga_type;
1333 const char *tga_type_name;
1336 case TGA_TYPE_8PLANE:
1337 tga_type_name = "Digital ZLXp-E1";
1339 case TGA_TYPE_24PLANE:
1340 tga_type_name = "Digital ZLXp-E2";
1342 case TGA_TYPE_24PLUSZ:
1343 tga_type_name = "Digital ZLXp-E3";
1346 tga_type_name = "Unknown";
1350 strlcpy(info->fix.id, tga_type_name, sizeof(info->fix.id));
1352 info->fix.type = FB_TYPE_PACKED_PIXELS;
1353 info->fix.type_aux = 0;
1354 info->fix.visual = (tga_type == TGA_TYPE_8PLANE
1355 ? FB_VISUAL_PSEUDOCOLOR
1356 : FB_VISUAL_TRUECOLOR);
1358 info->fix.line_length = par->xres * (par->bits_per_pixel >> 3);
1359 info->fix.smem_start = (size_t) par->tga_fb_base;
1360 info->fix.smem_len = info->fix.line_length * par->yres;
1361 info->fix.mmio_start = (size_t) par->tga_regs_base;
1362 info->fix.mmio_len = 512;
1364 info->fix.xpanstep = 0;
1365 info->fix.ypanstep = 0;
1366 info->fix.ywrapstep = 0;
1368 info->fix.accel = FB_ACCEL_DEC_TGA;
1371 static __devinit int
1372 tgafb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
1374 static unsigned int const fb_offset_presets[4] = {
1375 TGA_8PLANE_FB_OFFSET,
1376 TGA_24PLANE_FB_OFFSET,
1378 TGA_24PLUSZ_FB_OFFSET
1382 struct fb_info info;
1384 u32 pseudo_palette[16];
1387 void __iomem *mem_base;
1388 unsigned long bar0_start, bar0_len;
1392 /* Enable device in PCI config. */
1393 if (pci_enable_device(pdev)) {
1394 printk(KERN_ERR "tgafb: Cannot enable PCI device\n");
1398 /* Allocate the fb and par structures. */
1399 all = kmalloc(sizeof(*all), GFP_KERNEL);
1401 printk(KERN_ERR "tgafb: Cannot allocate memory\n");
1404 memset(all, 0, sizeof(*all));
1405 pci_set_drvdata(pdev, all);
1407 /* Request the mem regions. */
1408 bar0_start = pci_resource_start(pdev, 0);
1409 bar0_len = pci_resource_len(pdev, 0);
1411 if (!request_mem_region (bar0_start, bar0_len, "tgafb")) {
1412 printk(KERN_ERR "tgafb: cannot reserve FB region\n");
1416 /* Map the framebuffer. */
1417 mem_base = ioremap(bar0_start, bar0_len);
1419 printk(KERN_ERR "tgafb: Cannot map MMIO\n");
1423 /* Grab info about the card. */
1424 tga_type = (readl(mem_base) >> 12) & 0x0f;
1425 all->par.pdev = pdev;
1426 all->par.tga_mem_base = mem_base;
1427 all->par.tga_fb_base = mem_base + fb_offset_presets[tga_type];
1428 all->par.tga_regs_base = mem_base + TGA_REGS_OFFSET;
1429 all->par.tga_type = tga_type;
1430 pci_read_config_byte(pdev, PCI_REVISION_ID, &all->par.tga_chip_rev);
1432 /* Setup framebuffer. */
1433 all->info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
1434 FBINFO_HWACCEL_IMAGEBLIT | FBINFO_HWACCEL_FILLRECT;
1435 all->info.fbops = &tgafb_ops;
1436 all->info.screen_base = all->par.tga_fb_base;
1437 all->info.par = &all->par;
1438 all->info.pseudo_palette = all->pseudo_palette;
1440 /* This should give a reasonable default video mode. */
1442 ret = fb_find_mode(&all->info.var, &all->info, mode_option,
1444 tga_type == TGA_TYPE_8PLANE ? 8 : 32);
1445 if (ret == 0 || ret == 4) {
1446 printk(KERN_ERR "tgafb: Could not find valid video mode\n");
1451 if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
1452 printk(KERN_ERR "tgafb: Could not allocate color map\n");
1457 tgafb_set_par(&all->info);
1458 tgafb_init_fix(&all->info);
1460 all->info.device = &pdev->dev;
1461 if (register_framebuffer(&all->info) < 0) {
1462 printk(KERN_ERR "tgafb: Could not register framebuffer\n");
1467 printk(KERN_INFO "tgafb: DC21030 [TGA] detected, rev=0x%02x\n",
1468 all->par.tga_chip_rev);
1469 printk(KERN_INFO "tgafb: at PCI bus %d, device %d, function %d\n",
1470 pdev->bus->number, PCI_SLOT(pdev->devfn),
1471 PCI_FUNC(pdev->devfn));
1472 printk(KERN_INFO "fb%d: %s frame buffer device at 0x%lx\n",
1473 all->info.node, all->info.fix.id, bar0_start);
1478 release_mem_region(bar0_start, bar0_len);
1485 tgafb_pci_unregister(struct pci_dev *pdev)
1487 struct fb_info *info = pci_get_drvdata(pdev);
1488 struct tga_par *par = info->par;
1492 unregister_framebuffer(info);
1493 iounmap(par->tga_mem_base);
1494 release_mem_region(pci_resource_start(pdev, 0),
1495 pci_resource_len(pdev, 0));
1503 pci_unregister_driver(&tgafb_driver);
1509 tgafb_setup(char *arg)
1514 while ((this_opt = strsep(&arg, ","))) {
1517 if (!strncmp(this_opt, "mode:", 5))
1518 mode_option = this_opt+5;
1521 "tgafb: unknown parameter %s\n",
1528 #endif /* !MODULE */
1534 char *option = NULL;
1536 if (fb_get_options("tgafb", &option))
1538 tgafb_setup(option);
1540 return pci_register_driver(&tgafb_driver);
1547 module_init(tgafb_init);
1550 module_exit(tgafb_exit);
1553 MODULE_DESCRIPTION("framebuffer driver for TGA chipset");
1554 MODULE_LICENSE("GPL");