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
8 * Copyright (C) 2006, 2007 Maciej W. Rozycki
10 * This file is subject to the terms and conditions of the GNU General Public
11 * License. See the file COPYING in the main directory of this archive for
15 #include <linux/bitrev.h>
16 #include <linux/compiler.h>
17 #include <linux/delay.h>
18 #include <linux/device.h>
19 #include <linux/errno.h>
21 #include <linux/init.h>
22 #include <linux/ioport.h>
23 #include <linux/kernel.h>
25 #include <linux/module.h>
26 #include <linux/pci.h>
27 #include <linux/selection.h>
28 #include <linux/string.h>
33 #include <video/tgafb.h>
36 #define TGA_BUS_TC(dev) (dev->bus == &tc_bus_type)
38 #define TGA_BUS_TC(dev) 0
45 static int tgafb_check_var(struct fb_var_screeninfo *, struct fb_info *);
46 static int tgafb_set_par(struct fb_info *);
47 static void tgafb_set_pll(struct tga_par *, int);
48 static int tgafb_setcolreg(unsigned, unsigned, unsigned, unsigned,
49 unsigned, struct fb_info *);
50 static int tgafb_blank(int, struct fb_info *);
51 static void tgafb_init_fix(struct fb_info *);
53 static void tgafb_imageblit(struct fb_info *, const struct fb_image *);
54 static void tgafb_fillrect(struct fb_info *, const struct fb_fillrect *);
55 static void tgafb_copyarea(struct fb_info *, const struct fb_copyarea *);
56 static int tgafb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info);
58 static int tgafb_register(struct device *dev);
59 static void tgafb_unregister(struct device *dev);
61 static const char *mode_option;
62 static const char *mode_option_pci = "640x480@60";
63 static const char *mode_option_tc = "1280x1024@72";
66 static struct pci_driver tgafb_pci_driver;
67 static struct tc_driver tgafb_tc_driver;
70 * Frame buffer operations
73 static const struct fb_ops tgafb_ops = {
75 .fb_check_var = tgafb_check_var,
76 .fb_set_par = tgafb_set_par,
77 .fb_setcolreg = tgafb_setcolreg,
78 .fb_blank = tgafb_blank,
79 .fb_pan_display = tgafb_pan_display,
80 .fb_fillrect = tgafb_fillrect,
81 .fb_copyarea = tgafb_copyarea,
82 .fb_imageblit = tgafb_imageblit,
88 * PCI registration operations
90 static int tgafb_pci_register(struct pci_dev *, const struct pci_device_id *);
91 static void tgafb_pci_unregister(struct pci_dev *);
93 static struct pci_device_id const tgafb_pci_table[] = {
94 { PCI_DEVICE(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TGA) },
97 MODULE_DEVICE_TABLE(pci, tgafb_pci_table);
99 static struct pci_driver tgafb_pci_driver = {
101 .id_table = tgafb_pci_table,
102 .probe = tgafb_pci_register,
103 .remove = tgafb_pci_unregister,
106 static int tgafb_pci_register(struct pci_dev *pdev,
107 const struct pci_device_id *ent)
109 return tgafb_register(&pdev->dev);
112 static void tgafb_pci_unregister(struct pci_dev *pdev)
114 tgafb_unregister(&pdev->dev);
116 #endif /* CONFIG_PCI */
120 * TC registration operations
122 static int tgafb_tc_register(struct device *);
123 static int tgafb_tc_unregister(struct device *);
125 static struct tc_device_id const tgafb_tc_table[] = {
126 { "DEC ", "PMAGD-AA" },
127 { "DEC ", "PMAGD " },
130 MODULE_DEVICE_TABLE(tc, tgafb_tc_table);
132 static struct tc_driver tgafb_tc_driver = {
133 .id_table = tgafb_tc_table,
137 .probe = tgafb_tc_register,
138 .remove = tgafb_tc_unregister,
142 static int tgafb_tc_register(struct device *dev)
144 int status = tgafb_register(dev);
150 static int tgafb_tc_unregister(struct device *dev)
153 tgafb_unregister(dev);
156 #endif /* CONFIG_TC */
160 * tgafb_check_var - Optional function. Validates a var passed in.
161 * @var: frame buffer variable screen structure
162 * @info: frame buffer structure that represents a single frame buffer
165 tgafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
167 struct tga_par *par = (struct tga_par *)info->par;
169 if (par->tga_type == TGA_TYPE_8PLANE) {
170 if (var->bits_per_pixel != 8)
173 if (var->bits_per_pixel != 32)
176 var->red.length = var->green.length = var->blue.length = 8;
177 if (var->bits_per_pixel == 32) {
178 var->red.offset = 16;
179 var->green.offset = 8;
180 var->blue.offset = 0;
183 if (var->xres_virtual != var->xres || var->yres_virtual != var->yres)
185 if (var->xres * var->yres * (var->bits_per_pixel >> 3) > info->fix.smem_len)
189 if (1000000000 / var->pixclock > TGA_PLL_MAX_FREQ)
191 if ((var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED)
194 /* Some of the acceleration routines assume the line width is
195 a multiple of 8 bytes. */
196 if (var->xres * (par->tga_type == TGA_TYPE_8PLANE ? 1 : 4) % 8)
203 * tgafb_set_par - Optional function. Alters the hardware state.
204 * @info: frame buffer structure that represents a single frame buffer
207 tgafb_set_par(struct fb_info *info)
209 static unsigned int const deep_presets[4] = {
215 static unsigned int const rasterop_presets[4] = {
221 static unsigned int const mode_presets[4] = {
227 static unsigned int const base_addr_presets[4] = {
234 struct tga_par *par = (struct tga_par *) info->par;
235 int tga_bus_pci = dev_is_pci(par->dev);
236 int tga_bus_tc = TGA_BUS_TC(par->dev);
237 u32 htimings, vtimings, pll_freq;
241 /* Encode video timings. */
242 htimings = (((info->var.xres/4) & TGA_HORIZ_ACT_LSB)
243 | (((info->var.xres/4) & 0x600 << 19) & TGA_HORIZ_ACT_MSB));
244 vtimings = (info->var.yres & TGA_VERT_ACTIVE);
245 htimings |= ((info->var.right_margin/4) << 9) & TGA_HORIZ_FP;
246 vtimings |= (info->var.lower_margin << 11) & TGA_VERT_FP;
247 htimings |= ((info->var.hsync_len/4) << 14) & TGA_HORIZ_SYNC;
248 vtimings |= (info->var.vsync_len << 16) & TGA_VERT_SYNC;
249 htimings |= ((info->var.left_margin/4) << 21) & TGA_HORIZ_BP;
250 vtimings |= (info->var.upper_margin << 22) & TGA_VERT_BP;
252 if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
253 htimings |= TGA_HORIZ_POLARITY;
254 if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
255 vtimings |= TGA_VERT_POLARITY;
257 par->htimings = htimings;
258 par->vtimings = vtimings;
260 par->sync_on_green = !!(info->var.sync & FB_SYNC_ON_GREEN);
262 /* Store other useful values in par. */
263 par->xres = info->var.xres;
264 par->yres = info->var.yres;
265 par->pll_freq = pll_freq = 1000000000 / info->var.pixclock;
266 par->bits_per_pixel = info->var.bits_per_pixel;
267 info->fix.line_length = par->xres * (par->bits_per_pixel >> 3);
269 tga_type = par->tga_type;
271 /* First, disable video. */
272 TGA_WRITE_REG(par, TGA_VALID_VIDEO | TGA_VALID_BLANK, TGA_VALID_REG);
274 /* Write the DEEP register. */
275 while (TGA_READ_REG(par, TGA_CMD_STAT_REG) & 1) /* wait for not busy */
278 TGA_WRITE_REG(par, deep_presets[tga_type] |
279 (par->sync_on_green ? 0x0 : 0x00010000),
281 while (TGA_READ_REG(par, TGA_CMD_STAT_REG) & 1) /* wait for not busy */
285 /* Write some more registers. */
286 TGA_WRITE_REG(par, rasterop_presets[tga_type], TGA_RASTEROP_REG);
287 TGA_WRITE_REG(par, mode_presets[tga_type], TGA_MODE_REG);
288 TGA_WRITE_REG(par, base_addr_presets[tga_type], TGA_BASE_ADDR_REG);
290 /* Calculate & write the PLL. */
291 tgafb_set_pll(par, pll_freq);
293 /* Write some more registers. */
294 TGA_WRITE_REG(par, 0xffffffff, TGA_PLANEMASK_REG);
295 TGA_WRITE_REG(par, 0xffffffff, TGA_PIXELMASK_REG);
297 /* Init video timing regs. */
298 TGA_WRITE_REG(par, htimings, TGA_HORIZ_REG);
299 TGA_WRITE_REG(par, vtimings, TGA_VERT_REG);
301 /* Initialise RAMDAC. */
302 if (tga_type == TGA_TYPE_8PLANE && tga_bus_pci) {
304 /* Init BT485 RAMDAC registers. */
305 BT485_WRITE(par, 0xa2 | (par->sync_on_green ? 0x8 : 0x0),
307 BT485_WRITE(par, 0x01, BT485_ADDR_PAL_WRITE);
308 BT485_WRITE(par, 0x14, BT485_CMD_3); /* cursor 64x64 */
309 BT485_WRITE(par, 0x40, BT485_CMD_1);
310 BT485_WRITE(par, 0x20, BT485_CMD_2); /* cursor off, for now */
311 BT485_WRITE(par, 0xff, BT485_PIXEL_MASK);
313 /* Fill palette registers. */
314 BT485_WRITE(par, 0x00, BT485_ADDR_PAL_WRITE);
315 TGA_WRITE_REG(par, BT485_DATA_PAL, TGA_RAMDAC_SETUP_REG);
317 for (i = 0; i < 256 * 3; i += 4) {
318 TGA_WRITE_REG(par, 0x55 | (BT485_DATA_PAL << 8),
320 TGA_WRITE_REG(par, 0x00 | (BT485_DATA_PAL << 8),
322 TGA_WRITE_REG(par, 0x00 | (BT485_DATA_PAL << 8),
324 TGA_WRITE_REG(par, 0x00 | (BT485_DATA_PAL << 8),
328 } else if (tga_type == TGA_TYPE_8PLANE && tga_bus_tc) {
330 /* Init BT459 RAMDAC registers. */
331 BT459_WRITE(par, BT459_REG_ACC, BT459_CMD_REG_0, 0x40);
332 BT459_WRITE(par, BT459_REG_ACC, BT459_CMD_REG_1, 0x00);
333 BT459_WRITE(par, BT459_REG_ACC, BT459_CMD_REG_2,
334 (par->sync_on_green ? 0xc0 : 0x40));
336 BT459_WRITE(par, BT459_REG_ACC, BT459_CUR_CMD_REG, 0x00);
338 /* Fill the palette. */
339 BT459_LOAD_ADDR(par, 0x0000);
340 TGA_WRITE_REG(par, BT459_PALETTE << 2, TGA_RAMDAC_SETUP_REG);
342 for (i = 0; i < 256 * 3; i += 4) {
343 TGA_WRITE_REG(par, 0x55, TGA_RAMDAC_REG);
344 TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG);
345 TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG);
346 TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG);
349 } else { /* 24-plane or 24plusZ */
351 /* Init BT463 RAMDAC registers. */
352 BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_0, 0x40);
353 BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_1, 0x08);
354 BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_2,
355 (par->sync_on_green ? 0xc0 : 0x40));
357 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_0, 0xff);
358 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_1, 0xff);
359 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_2, 0xff);
360 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_3, 0x0f);
362 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_0, 0x00);
363 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_1, 0x00);
364 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_2, 0x00);
365 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_3, 0x00);
367 /* Fill the palette. */
368 BT463_LOAD_ADDR(par, 0x0000);
369 TGA_WRITE_REG(par, BT463_PALETTE << 2, TGA_RAMDAC_SETUP_REG);
371 #ifdef CONFIG_HW_CONSOLE
372 for (i = 0; i < 16; i++) {
373 int j = color_table[i];
375 TGA_WRITE_REG(par, default_red[j], TGA_RAMDAC_REG);
376 TGA_WRITE_REG(par, default_grn[j], TGA_RAMDAC_REG);
377 TGA_WRITE_REG(par, default_blu[j], TGA_RAMDAC_REG);
379 for (i = 0; i < 512 * 3; i += 4) {
381 for (i = 0; i < 528 * 3; i += 4) {
383 TGA_WRITE_REG(par, 0x55, TGA_RAMDAC_REG);
384 TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG);
385 TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG);
386 TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG);
389 /* Fill window type table after start of vertical retrace. */
390 while (!(TGA_READ_REG(par, TGA_INTR_STAT_REG) & 0x01))
392 TGA_WRITE_REG(par, 0x01, TGA_INTR_STAT_REG);
394 while (!(TGA_READ_REG(par, TGA_INTR_STAT_REG) & 0x01))
396 TGA_WRITE_REG(par, 0x01, TGA_INTR_STAT_REG);
398 BT463_LOAD_ADDR(par, BT463_WINDOW_TYPE_BASE);
399 TGA_WRITE_REG(par, BT463_REG_ACC << 2, TGA_RAMDAC_SETUP_REG);
401 for (i = 0; i < 16; i++) {
402 TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG);
403 TGA_WRITE_REG(par, 0x01, TGA_RAMDAC_REG);
404 TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG);
409 /* Finally, enable video scan (and pray for the monitor... :-) */
410 TGA_WRITE_REG(par, TGA_VALID_VIDEO, TGA_VALID_REG);
415 #define DIFFCHECK(X) \
418 int delta = f - (TGA_PLL_BASE_FREQ * (X)) / (r << shift); \
421 if (delta < min_diff) \
422 min_diff = delta, vm = m, va = a, vr = r; \
427 tgafb_set_pll(struct tga_par *par, int f)
429 int n, shift, base, min_diff, target;
430 int r,a,m,vm = 34, va = 1, vr = 30;
432 for (r = 0 ; r < 12 ; r++)
433 TGA_WRITE_REG(par, !r, TGA_CLOCK_REG);
435 if (f > TGA_PLL_MAX_FREQ)
436 f = TGA_PLL_MAX_FREQ;
438 if (f >= TGA_PLL_MAX_FREQ / 2)
440 else if (f >= TGA_PLL_MAX_FREQ / 4)
445 TGA_WRITE_REG(par, shift & 1, TGA_CLOCK_REG);
446 TGA_WRITE_REG(par, shift >> 1, TGA_CLOCK_REG);
448 for (r = 0 ; r < 10 ; r++)
449 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
452 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
453 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
455 else if (f <= 200000) {
456 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
457 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
460 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
461 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
464 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
465 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
466 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
467 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
468 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
469 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
471 target = (f << shift) / TGA_PLL_BASE_FREQ;
472 min_diff = TGA_PLL_MAX_FREQ;
479 for (n = base < 7 ? 7 : base; n < base + target && n < 449; n++) {
480 m = ((n + 3) / 7) - 1;
482 DIFFCHECK((m + 1) * 7);
484 DIFFCHECK((m + 1) * 7);
495 for (r = 0; r < 8; r++)
496 TGA_WRITE_REG(par, (vm >> r) & 1, TGA_CLOCK_REG);
497 for (r = 0; r < 8 ; r++)
498 TGA_WRITE_REG(par, (va >> r) & 1, TGA_CLOCK_REG);
499 for (r = 0; r < 7 ; r++)
500 TGA_WRITE_REG(par, (vr >> r) & 1, TGA_CLOCK_REG);
501 TGA_WRITE_REG(par, ((vr >> 7) & 1)|2, TGA_CLOCK_REG);
506 * tgafb_setcolreg - Optional function. Sets a color register.
507 * @regno: boolean, 0 copy local, 1 get_user() function
508 * @red: frame buffer colormap structure
509 * @green: The green value which can be up to 16 bits wide
510 * @blue: The blue value which can be up to 16 bits wide.
511 * @transp: If supported the alpha value which can be up to 16 bits wide.
512 * @info: frame buffer info structure
515 tgafb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue,
516 unsigned transp, struct fb_info *info)
518 struct tga_par *par = (struct tga_par *) info->par;
519 int tga_bus_pci = dev_is_pci(par->dev);
520 int tga_bus_tc = TGA_BUS_TC(par->dev);
528 if (par->tga_type == TGA_TYPE_8PLANE && tga_bus_pci) {
529 BT485_WRITE(par, regno, BT485_ADDR_PAL_WRITE);
530 TGA_WRITE_REG(par, BT485_DATA_PAL, TGA_RAMDAC_SETUP_REG);
531 TGA_WRITE_REG(par, red|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG);
532 TGA_WRITE_REG(par, green|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG);
533 TGA_WRITE_REG(par, blue|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG);
534 } else if (par->tga_type == TGA_TYPE_8PLANE && tga_bus_tc) {
535 BT459_LOAD_ADDR(par, regno);
536 TGA_WRITE_REG(par, BT459_PALETTE << 2, TGA_RAMDAC_SETUP_REG);
537 TGA_WRITE_REG(par, red, TGA_RAMDAC_REG);
538 TGA_WRITE_REG(par, green, TGA_RAMDAC_REG);
539 TGA_WRITE_REG(par, blue, TGA_RAMDAC_REG);
542 u32 value = (regno << 16) | (regno << 8) | regno;
543 ((u32 *)info->pseudo_palette)[regno] = value;
545 BT463_LOAD_ADDR(par, regno);
546 TGA_WRITE_REG(par, BT463_PALETTE << 2, TGA_RAMDAC_SETUP_REG);
547 TGA_WRITE_REG(par, red, TGA_RAMDAC_REG);
548 TGA_WRITE_REG(par, green, TGA_RAMDAC_REG);
549 TGA_WRITE_REG(par, blue, TGA_RAMDAC_REG);
557 * tgafb_blank - Optional function. Blanks the display.
558 * @blank: the blank mode we want.
559 * @info: frame buffer structure that represents a single frame buffer
562 tgafb_blank(int blank, struct fb_info *info)
564 struct tga_par *par = (struct tga_par *) info->par;
565 u32 vhcr, vvcr, vvvr;
568 local_irq_save(flags);
570 vhcr = TGA_READ_REG(par, TGA_HORIZ_REG);
571 vvcr = TGA_READ_REG(par, TGA_VERT_REG);
572 vvvr = TGA_READ_REG(par, TGA_VALID_REG);
573 vvvr &= ~(TGA_VALID_VIDEO | TGA_VALID_BLANK);
576 case FB_BLANK_UNBLANK: /* Unblanking */
577 if (par->vesa_blanked) {
578 TGA_WRITE_REG(par, vhcr & 0xbfffffff, TGA_HORIZ_REG);
579 TGA_WRITE_REG(par, vvcr & 0xbfffffff, TGA_VERT_REG);
580 par->vesa_blanked = 0;
582 TGA_WRITE_REG(par, vvvr | TGA_VALID_VIDEO, TGA_VALID_REG);
585 case FB_BLANK_NORMAL: /* Normal blanking */
586 TGA_WRITE_REG(par, vvvr | TGA_VALID_VIDEO | TGA_VALID_BLANK,
590 case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */
591 TGA_WRITE_REG(par, vvcr | 0x40000000, TGA_VERT_REG);
592 TGA_WRITE_REG(par, vvvr | TGA_VALID_BLANK, TGA_VALID_REG);
593 par->vesa_blanked = 1;
596 case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */
597 TGA_WRITE_REG(par, vhcr | 0x40000000, TGA_HORIZ_REG);
598 TGA_WRITE_REG(par, vvvr | TGA_VALID_BLANK, TGA_VALID_REG);
599 par->vesa_blanked = 1;
602 case FB_BLANK_POWERDOWN: /* Poweroff */
603 TGA_WRITE_REG(par, vhcr | 0x40000000, TGA_HORIZ_REG);
604 TGA_WRITE_REG(par, vvcr | 0x40000000, TGA_VERT_REG);
605 TGA_WRITE_REG(par, vvvr | TGA_VALID_BLANK, TGA_VALID_REG);
606 par->vesa_blanked = 1;
610 local_irq_restore(flags);
620 tgafb_mono_imageblit(struct fb_info *info, const struct fb_image *image)
622 struct tga_par *par = (struct tga_par *) info->par;
623 u32 fgcolor, bgcolor, dx, dy, width, height, vxres, vyres, pixelmask;
624 unsigned long rincr, line_length, shift, pos, is8bpp;
626 const unsigned char *data;
627 void __iomem *regs_base;
628 void __iomem *fb_base;
630 is8bpp = info->var.bits_per_pixel == 8;
634 width = image->width;
635 height = image->height;
636 vxres = info->var.xres_virtual;
637 vyres = info->var.yres_virtual;
638 line_length = info->fix.line_length;
639 rincr = (width + 7) / 8;
641 /* A shift below cannot cope with. */
642 if (unlikely(width == 0))
644 /* Crop the image to the screen. */
645 if (dx > vxres || dy > vyres)
647 if (dx + width > vxres)
649 if (dy + height > vyres)
652 regs_base = par->tga_regs_base;
653 fb_base = par->tga_fb_base;
655 /* Expand the color values to fill 32-bits. */
656 /* ??? Would be nice to notice colour changes elsewhere, so
657 that we can do this only when necessary. */
658 fgcolor = image->fg_color;
659 bgcolor = image->bg_color;
661 fgcolor |= fgcolor << 8;
662 fgcolor |= fgcolor << 16;
663 bgcolor |= bgcolor << 8;
664 bgcolor |= bgcolor << 16;
667 fgcolor = ((u32 *)info->pseudo_palette)[fgcolor];
669 bgcolor = ((u32 *)info->pseudo_palette)[bgcolor];
671 __raw_writel(fgcolor, regs_base + TGA_FOREGROUND_REG);
672 __raw_writel(bgcolor, regs_base + TGA_BACKGROUND_REG);
674 /* Acquire proper alignment; set up the PIXELMASK register
675 so that we only write the proper character cell. */
676 pos = dy * line_length;
683 shift = (pos & 7) >> 2;
687 data = (const unsigned char *) image->data;
689 /* Enable opaque stipple mode. */
691 ? TGA_MODE_SBM_8BPP | TGA_MODE_OPAQUE_STIPPLE
692 : TGA_MODE_SBM_24BPP | TGA_MODE_OPAQUE_STIPPLE),
693 regs_base + TGA_MODE_REG);
695 if (width + shift <= 32) {
696 unsigned long bwidth;
698 /* Handle common case of imaging a single character, in
699 a font less than or 32 pixels wide. */
701 /* Avoid a shift by 32; width > 0 implied. */
702 pixelmask = (2ul << (width - 1)) - 1;
704 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
707 bwidth = (width + 7) / 8;
709 for (i = 0; i < height; ++i) {
712 /* The image data is bit big endian; we need
714 for (j = 0; j < bwidth; ++j)
715 mask |= bitrev8(data[j]) << (j * 8);
717 __raw_writel(mask << shift, fb_base + pos);
723 __raw_writel(0xffffffff, regs_base + TGA_PIXELMASK_REG);
724 } else if (shift == 0) {
725 unsigned long pos0 = pos;
726 const unsigned char *data0 = data;
727 unsigned long bincr = (is8bpp ? 8 : 8*4);
728 unsigned long bwidth;
730 /* Handle another common case in which accel_putcs
731 generates a large bitmap, which happens to be aligned.
732 Allow the tail to be misaligned. This case is
733 interesting because we've not got to hold partial
734 bytes across the words being written. */
738 bwidth = (width / 8) & -4;
739 for (i = 0; i < height; ++i) {
740 for (j = 0; j < bwidth; j += 4) {
742 mask |= bitrev8(data[j+0]) << (0 * 8);
743 mask |= bitrev8(data[j+1]) << (1 * 8);
744 mask |= bitrev8(data[j+2]) << (2 * 8);
745 mask |= bitrev8(data[j+3]) << (3 * 8);
746 __raw_writel(mask, fb_base + pos + j*bincr);
753 pixelmask = (1ul << (width & 31)) - 1;
755 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
758 pos = pos0 + bwidth*bincr;
759 data = data0 + bwidth;
760 bwidth = ((width & 31) + 7) / 8;
762 for (i = 0; i < height; ++i) {
764 for (j = 0; j < bwidth; ++j)
765 mask |= bitrev8(data[j]) << (j * 8);
766 __raw_writel(mask, fb_base + pos);
771 __raw_writel(0xffffffff, regs_base + TGA_PIXELMASK_REG);
774 unsigned long pos0 = pos;
775 const unsigned char *data0 = data;
776 unsigned long bincr = (is8bpp ? 8 : 8*4);
777 unsigned long bwidth;
779 /* Finally, handle the generic case of misaligned start.
780 Here we split the write into 16-bit spans. This allows
781 us to use only one pixel mask, instead of four as would
782 be required by writing 24-bit spans. */
784 pixelmask = 0xffff << shift;
785 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
788 bwidth = (width / 8) & -2;
789 for (i = 0; i < height; ++i) {
790 for (j = 0; j < bwidth; j += 2) {
792 mask |= bitrev8(data[j+0]) << (0 * 8);
793 mask |= bitrev8(data[j+1]) << (1 * 8);
795 __raw_writel(mask, fb_base + pos + j*bincr);
802 pixelmask = ((1ul << (width & 15)) - 1) << shift;
804 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
807 pos = pos0 + bwidth*bincr;
808 data = data0 + bwidth;
809 bwidth = (width & 15) > 8;
811 for (i = 0; i < height; ++i) {
812 u32 mask = bitrev8(data[0]);
814 mask |= bitrev8(data[1]) << 8;
816 __raw_writel(mask, fb_base + pos);
822 __raw_writel(0xffffffff, regs_base + TGA_PIXELMASK_REG);
825 /* Disable opaque stipple mode. */
827 ? TGA_MODE_SBM_8BPP | TGA_MODE_SIMPLE
828 : TGA_MODE_SBM_24BPP | TGA_MODE_SIMPLE),
829 regs_base + TGA_MODE_REG);
833 tgafb_clut_imageblit(struct fb_info *info, const struct fb_image *image)
835 struct tga_par *par = (struct tga_par *) info->par;
836 u32 color, dx, dy, width, height, vxres, vyres;
837 u32 *palette = ((u32 *)info->pseudo_palette);
838 unsigned long pos, line_length, i, j;
839 const unsigned char *data;
840 void __iomem *fb_base;
844 width = image->width;
845 height = image->height;
846 vxres = info->var.xres_virtual;
847 vyres = info->var.yres_virtual;
848 line_length = info->fix.line_length;
850 /* Crop the image to the screen. */
851 if (dx > vxres || dy > vyres)
853 if (dx + width > vxres)
855 if (dy + height > vyres)
858 fb_base = par->tga_fb_base;
860 pos = dy * line_length + (dx * 4);
863 /* Now copy the image, color_expanding via the palette. */
864 for (i = 0; i < height; i++) {
865 for (j = 0; j < width; j++) {
866 color = palette[*data++];
867 __raw_writel(color, fb_base + pos + j*4);
874 * tgafb_imageblit - REQUIRED function. Can use generic routines if
875 * non acclerated hardware and packed pixel based.
876 * Copies a image from system memory to the screen.
878 * @info: frame buffer structure that represents a single frame buffer
879 * @image: structure defining the image.
882 tgafb_imageblit(struct fb_info *info, const struct fb_image *image)
884 unsigned int is8bpp = info->var.bits_per_pixel == 8;
886 /* If a mono image, regardless of FB depth, go do it. */
887 if (image->depth == 1) {
888 tgafb_mono_imageblit(info, image);
892 /* For copies that aren't pixel expansion, there's little we
893 can do better than the generic code. */
894 /* ??? There is a DMA write mode; I wonder if that could be
895 made to pull the data from the image buffer... */
896 if (image->depth == info->var.bits_per_pixel) {
897 cfb_imageblit(info, image);
901 /* If 24-plane FB and the image is 8-plane with CLUT, we can do it. */
902 if (!is8bpp && image->depth == 8) {
903 tgafb_clut_imageblit(info, image);
907 /* Silently return... */
911 * tgafb_fillrect - REQUIRED function. Can use generic routines if
912 * non acclerated hardware and packed pixel based.
913 * Draws a rectangle on the screen.
915 * @info: frame buffer structure that represents a single frame buffer
916 * @rect: structure defining the rectagle and operation.
919 tgafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
921 struct tga_par *par = (struct tga_par *) info->par;
922 int is8bpp = info->var.bits_per_pixel == 8;
923 u32 dx, dy, width, height, vxres, vyres, color;
924 unsigned long pos, align, line_length, i, j;
925 void __iomem *regs_base;
926 void __iomem *fb_base;
931 height = rect->height;
932 vxres = info->var.xres_virtual;
933 vyres = info->var.yres_virtual;
934 line_length = info->fix.line_length;
935 regs_base = par->tga_regs_base;
936 fb_base = par->tga_fb_base;
938 /* Crop the rectangle to the screen. */
939 if (dx > vxres || dy > vyres || !width || !height)
941 if (dx + width > vxres)
943 if (dy + height > vyres)
946 pos = dy * line_length + dx * (is8bpp ? 1 : 4);
948 /* ??? We could implement ROP_XOR with opaque fill mode
949 and a RasterOp setting of GXxor, but as far as I can
950 tell, this mode is not actually used in the kernel.
951 Thus I am ignoring it for now. */
952 if (rect->rop != ROP_COPY) {
953 cfb_fillrect(info, rect);
957 /* Expand the color value to fill 8 pixels. */
961 color |= color << 16;
962 __raw_writel(color, regs_base + TGA_BLOCK_COLOR0_REG);
963 __raw_writel(color, regs_base + TGA_BLOCK_COLOR1_REG);
966 color = ((u32 *)info->pseudo_palette)[color];
967 __raw_writel(color, regs_base + TGA_BLOCK_COLOR0_REG);
968 __raw_writel(color, regs_base + TGA_BLOCK_COLOR1_REG);
969 __raw_writel(color, regs_base + TGA_BLOCK_COLOR2_REG);
970 __raw_writel(color, regs_base + TGA_BLOCK_COLOR3_REG);
971 __raw_writel(color, regs_base + TGA_BLOCK_COLOR4_REG);
972 __raw_writel(color, regs_base + TGA_BLOCK_COLOR5_REG);
973 __raw_writel(color, regs_base + TGA_BLOCK_COLOR6_REG);
974 __raw_writel(color, regs_base + TGA_BLOCK_COLOR7_REG);
977 /* The DATA register holds the fill mask for block fill mode.
978 Since we're not stippling, this is all ones. */
979 __raw_writel(0xffffffff, regs_base + TGA_DATA_REG);
981 /* Enable block fill mode. */
983 ? TGA_MODE_SBM_8BPP | TGA_MODE_BLOCK_FILL
984 : TGA_MODE_SBM_24BPP | TGA_MODE_BLOCK_FILL),
985 regs_base + TGA_MODE_REG);
988 /* We can fill 2k pixels per operation. Notice blocks that fit
989 the width of the screen so that we can take advantage of this
990 and fill more than one line per write. */
991 if (width == line_length) {
996 /* The write into the frame buffer must be aligned to 4 bytes,
997 but we are allowed to encode the offset within the word in
998 the data word written. */
999 align = (pos & 3) << 16;
1002 if (width <= 2048) {
1005 data = (width - 1) | align;
1007 for (i = 0; i < height; ++i) {
1008 __raw_writel(data, fb_base + pos);
1012 unsigned long Bpp = (is8bpp ? 1 : 4);
1013 unsigned long nwidth = width & -2048;
1016 fdata = (2048 - 1) | align;
1017 ldata = ((width & 2047) - 1) | align;
1019 for (i = 0; i < height; ++i) {
1020 for (j = 0; j < nwidth; j += 2048)
1021 __raw_writel(fdata, fb_base + pos + j*Bpp);
1023 __raw_writel(ldata, fb_base + pos + j*Bpp);
1029 /* Disable block fill mode. */
1030 __raw_writel((is8bpp
1031 ? TGA_MODE_SBM_8BPP | TGA_MODE_SIMPLE
1032 : TGA_MODE_SBM_24BPP | TGA_MODE_SIMPLE),
1033 regs_base + TGA_MODE_REG);
1037 * tgafb_copyarea - REQUIRED function. Can use generic routines if
1038 * non acclerated hardware and packed pixel based.
1039 * Copies on area of the screen to another area.
1041 * @info: frame buffer structure that represents a single frame buffer
1042 * @area: structure defining the source and destination.
1045 /* Handle the special case of copying entire lines, e.g. during scrolling.
1046 We can avoid a lot of needless computation in this case. In the 8bpp
1047 case we need to use the COPY64 registers instead of mask writes into
1048 the frame buffer to achieve maximum performance. */
1051 copyarea_line_8bpp(struct fb_info *info, u32 dy, u32 sy,
1052 u32 height, u32 width)
1054 struct tga_par *par = (struct tga_par *) info->par;
1055 void __iomem *tga_regs = par->tga_regs_base;
1056 unsigned long dpos, spos, i, n64;
1058 /* Set up the MODE and PIXELSHIFT registers. */
1059 __raw_writel(TGA_MODE_SBM_8BPP | TGA_MODE_COPY, tga_regs+TGA_MODE_REG);
1060 __raw_writel(0, tga_regs+TGA_PIXELSHIFT_REG);
1063 n64 = (height * width) / 64;
1066 spos = (sy + height) * width;
1067 dpos = (dy + height) * width;
1069 for (i = 0; i < n64; ++i) {
1072 __raw_writel(spos, tga_regs+TGA_COPY64_SRC);
1074 __raw_writel(dpos, tga_regs+TGA_COPY64_DST);
1081 for (i = 0; i < n64; ++i) {
1082 __raw_writel(spos, tga_regs+TGA_COPY64_SRC);
1084 __raw_writel(dpos, tga_regs+TGA_COPY64_DST);
1091 /* Reset the MODE register to normal. */
1092 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG);
1096 copyarea_line_32bpp(struct fb_info *info, u32 dy, u32 sy,
1097 u32 height, u32 width)
1099 struct tga_par *par = (struct tga_par *) info->par;
1100 void __iomem *tga_regs = par->tga_regs_base;
1101 void __iomem *tga_fb = par->tga_fb_base;
1104 unsigned long i, n16;
1106 /* Set up the MODE and PIXELSHIFT registers. */
1107 __raw_writel(TGA_MODE_SBM_24BPP | TGA_MODE_COPY, tga_regs+TGA_MODE_REG);
1108 __raw_writel(0, tga_regs+TGA_PIXELSHIFT_REG);
1111 n16 = (height * width) / 16;
1114 src = tga_fb + (sy + height) * width * 4;
1115 dst = tga_fb + (dy + height) * width * 4;
1117 for (i = 0; i < n16; ++i) {
1120 __raw_writel(0xffff, src);
1122 __raw_writel(0xffff, dst);
1126 src = tga_fb + sy * width * 4;
1127 dst = tga_fb + dy * width * 4;
1129 for (i = 0; i < n16; ++i) {
1130 __raw_writel(0xffff, src);
1132 __raw_writel(0xffff, dst);
1139 /* Reset the MODE register to normal. */
1140 __raw_writel(TGA_MODE_SBM_24BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG);
1143 /* The (almost) general case of backward copy in 8bpp mode. */
1145 copyarea_8bpp(struct fb_info *info, u32 dx, u32 dy, u32 sx, u32 sy,
1146 u32 height, u32 width, u32 line_length,
1147 const struct fb_copyarea *area)
1149 struct tga_par *par = (struct tga_par *) info->par;
1151 int depos, sepos, backward, last_step, step;
1154 void __iomem *tga_regs;
1155 void __iomem *tga_fb;
1157 /* Do acceleration only if we are aligned on 8 pixels */
1158 if ((dx | sx | width) & 7) {
1159 cfb_copyarea(info, area);
1163 yincr = line_length;
1169 backward = dy == sy && dx > sx && dx < sx + width;
1171 /* Compute the offsets and alignments in the frame buffer.
1172 More than anything else, these control how we do copies. */
1173 depos = dy * line_length + dx;
1174 sepos = sy * line_length + sx;
1180 /* Next copy full words at a time. */
1182 last_step = width % 32;
1184 /* Finally copy the unaligned head of the span. */
1185 mask_last = (1ul << last_step) - 1;
1192 last_step = -last_step;
1197 tga_regs = par->tga_regs_base;
1198 tga_fb = par->tga_fb_base;
1200 /* Set up the MODE and PIXELSHIFT registers. */
1201 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_COPY, tga_regs+TGA_MODE_REG);
1202 __raw_writel(0, tga_regs+TGA_PIXELSHIFT_REG);
1205 for (i = 0; i < height; ++i) {
1210 sfb = tga_fb + sepos;
1211 dfb = tga_fb + depos;
1213 for (j = 0; j < n32; j++) {
1214 if (j < 2 && j + 1 < n32 && !backward &&
1215 !(((unsigned long)sfb | (unsigned long)dfb) & 63)) {
1217 __raw_writel(sfb - tga_fb, tga_regs+TGA_COPY64_SRC);
1219 __raw_writel(dfb - tga_fb, tga_regs+TGA_COPY64_DST);
1224 } while (j + 1 < n32);
1228 __raw_writel(0xffffffff, sfb);
1230 __raw_writel(0xffffffff, dfb);
1237 sfb += last_step - step;
1238 dfb += last_step - step;
1239 __raw_writel(mask_last, sfb);
1241 __raw_writel(mask_last, dfb);
1249 /* Reset the MODE register to normal. */
1250 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG);
1254 tgafb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
1256 unsigned long dx, dy, width, height, sx, sy, vxres, vyres;
1257 unsigned long line_length, bpp;
1261 width = area->width;
1262 height = area->height;
1265 vxres = info->var.xres_virtual;
1266 vyres = info->var.yres_virtual;
1267 line_length = info->fix.line_length;
1269 /* The top left corners must be in the virtual screen. */
1270 if (dx > vxres || sx > vxres || dy > vyres || sy > vyres)
1273 /* Clip the destination. */
1274 if (dx + width > vxres)
1276 if (dy + height > vyres)
1277 height = vyres - dy;
1279 /* The source must be completely inside the virtual screen. */
1280 if (sx + width > vxres || sy + height > vyres)
1283 bpp = info->var.bits_per_pixel;
1285 /* Detect copies of the entire line. */
1286 if (!(line_length & 63) && width * (bpp >> 3) == line_length) {
1288 copyarea_line_8bpp(info, dy, sy, height, width);
1290 copyarea_line_32bpp(info, dy, sy, height, width);
1293 /* ??? The documentation is unclear to me exactly how the pixelshift
1294 register works in 32bpp mode. Since I don't have hardware to test,
1295 give up for now and fall back on the generic routines. */
1297 cfb_copyarea(info, area);
1300 copyarea_8bpp(info, dx, dy, sx, sy, height,
1301 width, line_length, area);
1310 tgafb_init_fix(struct fb_info *info)
1312 struct tga_par *par = (struct tga_par *)info->par;
1313 int tga_bus_pci = dev_is_pci(par->dev);
1314 int tga_bus_tc = TGA_BUS_TC(par->dev);
1315 u8 tga_type = par->tga_type;
1316 const char *tga_type_name = NULL;
1317 unsigned memory_size;
1320 case TGA_TYPE_8PLANE:
1322 tga_type_name = "Digital ZLXp-E1";
1324 tga_type_name = "Digital ZLX-E1";
1325 memory_size = 2097152;
1327 case TGA_TYPE_24PLANE:
1329 tga_type_name = "Digital ZLXp-E2";
1331 tga_type_name = "Digital ZLX-E2";
1332 memory_size = 8388608;
1334 case TGA_TYPE_24PLUSZ:
1336 tga_type_name = "Digital ZLXp-E3";
1338 tga_type_name = "Digital ZLX-E3";
1339 memory_size = 16777216;
1342 if (!tga_type_name) {
1343 tga_type_name = "Unknown";
1344 memory_size = 16777216;
1347 strlcpy(info->fix.id, tga_type_name, sizeof(info->fix.id));
1349 info->fix.type = FB_TYPE_PACKED_PIXELS;
1350 info->fix.type_aux = 0;
1351 info->fix.visual = (tga_type == TGA_TYPE_8PLANE
1352 ? FB_VISUAL_PSEUDOCOLOR
1353 : FB_VISUAL_DIRECTCOLOR);
1355 info->fix.smem_start = (size_t) par->tga_fb_base;
1356 info->fix.smem_len = memory_size;
1357 info->fix.mmio_start = (size_t) par->tga_regs_base;
1358 info->fix.mmio_len = 512;
1360 info->fix.xpanstep = 0;
1361 info->fix.ypanstep = 0;
1362 info->fix.ywrapstep = 0;
1364 info->fix.accel = FB_ACCEL_DEC_TGA;
1367 * These are needed by fb_set_logo_truepalette(), so we
1368 * set them here for 24-plane cards.
1370 if (tga_type != TGA_TYPE_8PLANE) {
1371 info->var.red.length = 8;
1372 info->var.green.length = 8;
1373 info->var.blue.length = 8;
1374 info->var.red.offset = 16;
1375 info->var.green.offset = 8;
1376 info->var.blue.offset = 0;
1380 static int tgafb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
1382 /* We just use this to catch switches out of graphics mode. */
1383 tgafb_set_par(info); /* A bit of overkill for BASE_ADDR reset. */
1387 static int tgafb_register(struct device *dev)
1389 static const struct fb_videomode modedb_tc = {
1390 /* 1280x1024 @ 72 Hz, 76.8 kHz hsync */
1391 "1280x1024@72", 0, 1280, 1024, 7645, 224, 28, 33, 3, 160, 3,
1392 FB_SYNC_ON_GREEN, FB_VMODE_NONINTERLACED
1395 static unsigned int const fb_offset_presets[4] = {
1396 TGA_8PLANE_FB_OFFSET,
1397 TGA_24PLANE_FB_OFFSET,
1399 TGA_24PLUSZ_FB_OFFSET
1402 const struct fb_videomode *modedb_tga = NULL;
1403 resource_size_t bar0_start = 0, bar0_len = 0;
1404 const char *mode_option_tga = NULL;
1405 int tga_bus_pci = dev_is_pci(dev);
1406 int tga_bus_tc = TGA_BUS_TC(dev);
1407 unsigned int modedbsize_tga = 0;
1408 void __iomem *mem_base;
1409 struct fb_info *info;
1410 struct tga_par *par;
1414 /* Enable device in PCI config. */
1415 if (tga_bus_pci && pci_enable_device(to_pci_dev(dev))) {
1416 printk(KERN_ERR "tgafb: Cannot enable PCI device\n");
1420 /* Allocate the fb and par structures. */
1421 info = framebuffer_alloc(sizeof(struct tga_par), dev);
1426 dev_set_drvdata(dev, info);
1428 /* Request the mem regions. */
1431 bar0_start = pci_resource_start(to_pci_dev(dev), 0);
1432 bar0_len = pci_resource_len(to_pci_dev(dev), 0);
1435 bar0_start = to_tc_dev(dev)->resource.start;
1436 bar0_len = to_tc_dev(dev)->resource.end - bar0_start + 1;
1438 if (!request_mem_region (bar0_start, bar0_len, "tgafb")) {
1439 printk(KERN_ERR "tgafb: cannot reserve FB region\n");
1443 /* Map the framebuffer. */
1444 mem_base = ioremap(bar0_start, bar0_len);
1446 printk(KERN_ERR "tgafb: Cannot map MMIO\n");
1450 /* Grab info about the card. */
1451 tga_type = (readl(mem_base) >> 12) & 0x0f;
1453 par->tga_mem_base = mem_base;
1454 par->tga_fb_base = mem_base + fb_offset_presets[tga_type];
1455 par->tga_regs_base = mem_base + TGA_REGS_OFFSET;
1456 par->tga_type = tga_type;
1458 par->tga_chip_rev = (to_pci_dev(dev))->revision;
1460 par->tga_chip_rev = TGA_READ_REG(par, TGA_START_REG) & 0xff;
1462 /* Setup framebuffer. */
1463 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
1464 FBINFO_HWACCEL_IMAGEBLIT | FBINFO_HWACCEL_FILLRECT;
1465 info->fbops = &tgafb_ops;
1466 info->screen_base = par->tga_fb_base;
1467 info->pseudo_palette = par->palette;
1469 /* This should give a reasonable default video mode. */
1471 mode_option_tga = mode_option_pci;
1474 mode_option_tga = mode_option_tc;
1475 modedb_tga = &modedb_tc;
1479 tgafb_init_fix(info);
1481 ret = fb_find_mode(&info->var, info,
1482 mode_option ? mode_option : mode_option_tga,
1483 modedb_tga, modedbsize_tga, NULL,
1484 tga_type == TGA_TYPE_8PLANE ? 8 : 32);
1485 if (ret == 0 || ret == 4) {
1486 printk(KERN_ERR "tgafb: Could not find valid video mode\n");
1491 if (fb_alloc_cmap(&info->cmap, 256, 0)) {
1492 printk(KERN_ERR "tgafb: Could not allocate color map\n");
1497 tgafb_set_par(info);
1499 if (register_framebuffer(info) < 0) {
1500 printk(KERN_ERR "tgafb: Could not register framebuffer\n");
1506 pr_info("tgafb: DC21030 [TGA] detected, rev=0x%02x\n",
1508 pr_info("tgafb: at PCI bus %d, device %d, function %d\n",
1509 to_pci_dev(dev)->bus->number,
1510 PCI_SLOT(to_pci_dev(dev)->devfn),
1511 PCI_FUNC(to_pci_dev(dev)->devfn));
1514 pr_info("tgafb: SFB+ detected, rev=0x%02x\n",
1516 fb_info(info, "%s frame buffer device at 0x%lx\n",
1517 info->fix.id, (long)bar0_start);
1522 fb_dealloc_cmap(&info->cmap);
1526 release_mem_region(bar0_start, bar0_len);
1528 framebuffer_release(info);
1532 static void tgafb_unregister(struct device *dev)
1534 resource_size_t bar0_start = 0, bar0_len = 0;
1535 int tga_bus_pci = dev_is_pci(dev);
1536 int tga_bus_tc = TGA_BUS_TC(dev);
1537 struct fb_info *info = NULL;
1538 struct tga_par *par;
1540 info = dev_get_drvdata(dev);
1545 unregister_framebuffer(info);
1546 fb_dealloc_cmap(&info->cmap);
1547 iounmap(par->tga_mem_base);
1549 bar0_start = pci_resource_start(to_pci_dev(dev), 0);
1550 bar0_len = pci_resource_len(to_pci_dev(dev), 0);
1553 bar0_start = to_tc_dev(dev)->resource.start;
1554 bar0_len = to_tc_dev(dev)->resource.end - bar0_start + 1;
1556 release_mem_region(bar0_start, bar0_len);
1557 framebuffer_release(info);
1560 static void tgafb_exit(void)
1562 tc_unregister_driver(&tgafb_tc_driver);
1563 pci_unregister_driver(&tgafb_pci_driver);
1567 static int tgafb_setup(char *arg)
1572 while ((this_opt = strsep(&arg, ","))) {
1575 if (!strncmp(this_opt, "mode:", 5))
1576 mode_option = this_opt+5;
1579 "tgafb: unknown parameter %s\n",
1586 #endif /* !MODULE */
1588 static int tgafb_init(void)
1592 char *option = NULL;
1594 if (fb_get_options("tgafb", &option))
1596 tgafb_setup(option);
1598 status = pci_register_driver(&tgafb_pci_driver);
1600 status = tc_register_driver(&tgafb_tc_driver);
1608 module_init(tgafb_init);
1609 module_exit(tgafb_exit);
1611 MODULE_DESCRIPTION("Framebuffer driver for TGA/SFB+ chipset");
1612 MODULE_LICENSE("GPL");