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/slab.h>
21 #include <linux/delay.h>
22 #include <linux/init.h>
24 #include <linux/pci.h>
25 #include <linux/selection.h>
27 #include <video/tgafb.h>
33 static int tgafb_check_var(struct fb_var_screeninfo *, struct fb_info *);
34 static int tgafb_set_par(struct fb_info *);
35 static void tgafb_set_pll(struct tga_par *, int);
36 static int tgafb_setcolreg(unsigned, unsigned, unsigned, unsigned,
37 unsigned, struct fb_info *);
38 static int tgafb_blank(int, struct fb_info *);
39 static void tgafb_init_fix(struct fb_info *);
41 static void tgafb_imageblit(struct fb_info *, const struct fb_image *);
42 static void tgafb_fillrect(struct fb_info *, const struct fb_fillrect *);
43 static void tgafb_copyarea(struct fb_info *, const struct fb_copyarea *);
45 static int tgafb_pci_register(struct pci_dev *, const struct pci_device_id *);
46 static void tgafb_pci_unregister(struct pci_dev *);
48 static const char *mode_option = "640x480@60";
52 * Frame buffer operations
55 static struct fb_ops tgafb_ops = {
57 .fb_check_var = tgafb_check_var,
58 .fb_set_par = tgafb_set_par,
59 .fb_setcolreg = tgafb_setcolreg,
60 .fb_blank = tgafb_blank,
61 .fb_fillrect = tgafb_fillrect,
62 .fb_copyarea = tgafb_copyarea,
63 .fb_imageblit = tgafb_imageblit,
68 * PCI registration operations
71 static struct pci_device_id const tgafb_pci_table[] = {
72 { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TGA, PCI_ANY_ID, PCI_ANY_ID,
76 static struct pci_driver tgafb_driver = {
78 .id_table = tgafb_pci_table,
79 .probe = tgafb_pci_register,
80 .remove = __devexit_p(tgafb_pci_unregister),
85 * tgafb_check_var - Optional function. Validates a var passed in.
86 * @var: frame buffer variable screen structure
87 * @info: frame buffer structure that represents a single frame buffer
90 tgafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
92 struct tga_par *par = (struct tga_par *)info->par;
94 if (par->tga_type == TGA_TYPE_8PLANE) {
95 if (var->bits_per_pixel != 8)
98 if (var->bits_per_pixel != 32)
102 if (var->xres_virtual != var->xres || var->yres_virtual != var->yres)
106 if (1000000000 / var->pixclock > TGA_PLL_MAX_FREQ)
108 if ((var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED)
111 /* Some of the acceleration routines assume the line width is
112 a multiple of 64 bytes. */
113 if (var->xres * (par->tga_type == TGA_TYPE_8PLANE ? 1 : 4) % 64)
120 * tgafb_set_par - Optional function. Alters the hardware state.
121 * @info: frame buffer structure that represents a single frame buffer
124 tgafb_set_par(struct fb_info *info)
126 static unsigned int const deep_presets[4] = {
132 static unsigned int const rasterop_presets[4] = {
138 static unsigned int const mode_presets[4] = {
144 static unsigned int const base_addr_presets[4] = {
151 struct tga_par *par = (struct tga_par *) info->par;
152 u32 htimings, vtimings, pll_freq;
156 /* Encode video timings. */
157 htimings = (((info->var.xres/4) & TGA_HORIZ_ACT_LSB)
158 | (((info->var.xres/4) & 0x600 << 19) & TGA_HORIZ_ACT_MSB));
159 vtimings = (info->var.yres & TGA_VERT_ACTIVE);
160 htimings |= ((info->var.right_margin/4) << 9) & TGA_HORIZ_FP;
161 vtimings |= (info->var.lower_margin << 11) & TGA_VERT_FP;
162 htimings |= ((info->var.hsync_len/4) << 14) & TGA_HORIZ_SYNC;
163 vtimings |= (info->var.vsync_len << 16) & TGA_VERT_SYNC;
164 htimings |= ((info->var.left_margin/4) << 21) & TGA_HORIZ_BP;
165 vtimings |= (info->var.upper_margin << 22) & TGA_VERT_BP;
167 if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
168 htimings |= TGA_HORIZ_POLARITY;
169 if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
170 vtimings |= TGA_VERT_POLARITY;
172 par->htimings = htimings;
173 par->vtimings = vtimings;
175 par->sync_on_green = !!(info->var.sync & FB_SYNC_ON_GREEN);
177 /* Store other useful values in par. */
178 par->xres = info->var.xres;
179 par->yres = info->var.yres;
180 par->pll_freq = pll_freq = 1000000000 / info->var.pixclock;
181 par->bits_per_pixel = info->var.bits_per_pixel;
183 tga_type = par->tga_type;
185 /* First, disable video. */
186 TGA_WRITE_REG(par, TGA_VALID_VIDEO | TGA_VALID_BLANK, TGA_VALID_REG);
188 /* Write the DEEP register. */
189 while (TGA_READ_REG(par, TGA_CMD_STAT_REG) & 1) /* wait for not busy */
192 TGA_WRITE_REG(par, deep_presets[tga_type], TGA_DEEP_REG);
193 while (TGA_READ_REG(par, TGA_CMD_STAT_REG) & 1) /* wait for not busy */
197 /* Write some more registers. */
198 TGA_WRITE_REG(par, rasterop_presets[tga_type], TGA_RASTEROP_REG);
199 TGA_WRITE_REG(par, mode_presets[tga_type], TGA_MODE_REG);
200 TGA_WRITE_REG(par, base_addr_presets[tga_type], TGA_BASE_ADDR_REG);
202 /* Calculate & write the PLL. */
203 tgafb_set_pll(par, pll_freq);
205 /* Write some more registers. */
206 TGA_WRITE_REG(par, 0xffffffff, TGA_PLANEMASK_REG);
207 TGA_WRITE_REG(par, 0xffffffff, TGA_PIXELMASK_REG);
209 /* Init video timing regs. */
210 TGA_WRITE_REG(par, htimings, TGA_HORIZ_REG);
211 TGA_WRITE_REG(par, vtimings, TGA_VERT_REG);
213 /* Initalise RAMDAC. */
214 if (tga_type == TGA_TYPE_8PLANE) {
216 /* Init BT485 RAMDAC registers. */
217 BT485_WRITE(par, 0xa2 | (par->sync_on_green ? 0x8 : 0x0),
219 BT485_WRITE(par, 0x01, BT485_ADDR_PAL_WRITE);
220 BT485_WRITE(par, 0x14, BT485_CMD_3); /* cursor 64x64 */
221 BT485_WRITE(par, 0x40, BT485_CMD_1);
222 BT485_WRITE(par, 0x20, BT485_CMD_2); /* cursor off, for now */
223 BT485_WRITE(par, 0xff, BT485_PIXEL_MASK);
225 /* Fill palette registers. */
226 BT485_WRITE(par, 0x00, BT485_ADDR_PAL_WRITE);
227 TGA_WRITE_REG(par, BT485_DATA_PAL, TGA_RAMDAC_SETUP_REG);
229 for (i = 0; i < 16; i++) {
231 TGA_WRITE_REG(par, default_red[j]|(BT485_DATA_PAL<<8),
233 TGA_WRITE_REG(par, default_grn[j]|(BT485_DATA_PAL<<8),
235 TGA_WRITE_REG(par, default_blu[j]|(BT485_DATA_PAL<<8),
238 for (i = 0; i < 240*3; i += 4) {
239 TGA_WRITE_REG(par, 0x55|(BT485_DATA_PAL<<8),
241 TGA_WRITE_REG(par, 0x00|(BT485_DATA_PAL<<8),
243 TGA_WRITE_REG(par, 0x00|(BT485_DATA_PAL<<8),
245 TGA_WRITE_REG(par, 0x00|(BT485_DATA_PAL<<8),
249 } else { /* 24-plane or 24plusZ */
251 /* Init BT463 registers. */
252 BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_0, 0x40);
253 BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_1, 0x08);
254 BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_2,
255 (par->sync_on_green ? 0x80 : 0x40));
257 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_0, 0xff);
258 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_1, 0xff);
259 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_2, 0xff);
260 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_3, 0x0f);
262 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_0, 0x00);
263 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_1, 0x00);
264 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_2, 0x00);
265 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_3, 0x00);
267 /* Fill the palette. */
268 BT463_LOAD_ADDR(par, 0x0000);
269 TGA_WRITE_REG(par, BT463_PALETTE<<2, TGA_RAMDAC_REG);
271 for (i = 0; i < 16; i++) {
273 TGA_WRITE_REG(par, default_red[j]|(BT463_PALETTE<<10),
275 TGA_WRITE_REG(par, default_grn[j]|(BT463_PALETTE<<10),
277 TGA_WRITE_REG(par, default_blu[j]|(BT463_PALETTE<<10),
280 for (i = 0; i < 512*3; i += 4) {
281 TGA_WRITE_REG(par, 0x55|(BT463_PALETTE<<10),
283 TGA_WRITE_REG(par, 0x00|(BT463_PALETTE<<10),
285 TGA_WRITE_REG(par, 0x00|(BT463_PALETTE<<10),
287 TGA_WRITE_REG(par, 0x00|(BT463_PALETTE<<10),
291 /* Fill window type table after start of vertical retrace. */
292 while (!(TGA_READ_REG(par, TGA_INTR_STAT_REG) & 0x01))
294 TGA_WRITE_REG(par, 0x01, TGA_INTR_STAT_REG);
296 while (!(TGA_READ_REG(par, TGA_INTR_STAT_REG) & 0x01))
298 TGA_WRITE_REG(par, 0x01, TGA_INTR_STAT_REG);
300 BT463_LOAD_ADDR(par, BT463_WINDOW_TYPE_BASE);
301 TGA_WRITE_REG(par, BT463_REG_ACC<<2, TGA_RAMDAC_SETUP_REG);
303 for (i = 0; i < 16; i++) {
304 TGA_WRITE_REG(par, 0x00|(BT463_REG_ACC<<10),
306 TGA_WRITE_REG(par, 0x01|(BT463_REG_ACC<<10),
308 TGA_WRITE_REG(par, 0x80|(BT463_REG_ACC<<10),
314 /* Finally, enable video scan (and pray for the monitor... :-) */
315 TGA_WRITE_REG(par, TGA_VALID_VIDEO, TGA_VALID_REG);
320 #define DIFFCHECK(X) \
323 int delta = f - (TGA_PLL_BASE_FREQ * (X)) / (r << shift); \
326 if (delta < min_diff) \
327 min_diff = delta, vm = m, va = a, vr = r; \
332 tgafb_set_pll(struct tga_par *par, int f)
334 int n, shift, base, min_diff, target;
335 int r,a,m,vm = 34, va = 1, vr = 30;
337 for (r = 0 ; r < 12 ; r++)
338 TGA_WRITE_REG(par, !r, TGA_CLOCK_REG);
340 if (f > TGA_PLL_MAX_FREQ)
341 f = TGA_PLL_MAX_FREQ;
343 if (f >= TGA_PLL_MAX_FREQ / 2)
345 else if (f >= TGA_PLL_MAX_FREQ / 4)
350 TGA_WRITE_REG(par, shift & 1, TGA_CLOCK_REG);
351 TGA_WRITE_REG(par, shift >> 1, TGA_CLOCK_REG);
353 for (r = 0 ; r < 10 ; r++)
354 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
357 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
358 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
360 else if (f <= 200000) {
361 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
362 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
365 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
366 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
369 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
370 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
371 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
372 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
373 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
374 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
376 target = (f << shift) / TGA_PLL_BASE_FREQ;
377 min_diff = TGA_PLL_MAX_FREQ;
384 for (n = base < 7 ? 7 : base; n < base + target && n < 449; n++) {
385 m = ((n + 3) / 7) - 1;
387 DIFFCHECK((m + 1) * 7);
389 DIFFCHECK((m + 1) * 7);
400 for (r = 0; r < 8; r++)
401 TGA_WRITE_REG(par, (vm >> r) & 1, TGA_CLOCK_REG);
402 for (r = 0; r < 8 ; r++)
403 TGA_WRITE_REG(par, (va >> r) & 1, TGA_CLOCK_REG);
404 for (r = 0; r < 7 ; r++)
405 TGA_WRITE_REG(par, (vr >> r) & 1, TGA_CLOCK_REG);
406 TGA_WRITE_REG(par, ((vr >> 7) & 1)|2, TGA_CLOCK_REG);
411 * tgafb_setcolreg - Optional function. Sets a color register.
412 * @regno: boolean, 0 copy local, 1 get_user() function
413 * @red: frame buffer colormap structure
414 * @green: The green value which can be up to 16 bits wide
415 * @blue: The blue value which can be up to 16 bits wide.
416 * @transp: If supported the alpha value which can be up to 16 bits wide.
417 * @info: frame buffer info structure
420 tgafb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue,
421 unsigned transp, struct fb_info *info)
423 struct tga_par *par = (struct tga_par *) info->par;
431 if (par->tga_type == TGA_TYPE_8PLANE) {
432 BT485_WRITE(par, regno, BT485_ADDR_PAL_WRITE);
433 TGA_WRITE_REG(par, BT485_DATA_PAL, TGA_RAMDAC_SETUP_REG);
434 TGA_WRITE_REG(par, red|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG);
435 TGA_WRITE_REG(par, green|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG);
436 TGA_WRITE_REG(par, blue|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG);
437 } else if (regno < 16) {
438 u32 value = (red << 16) | (green << 8) | blue;
439 ((u32 *)info->pseudo_palette)[regno] = value;
447 * tgafb_blank - Optional function. Blanks the display.
448 * @blank_mode: the blank mode we want.
449 * @info: frame buffer structure that represents a single frame buffer
452 tgafb_blank(int blank, struct fb_info *info)
454 struct tga_par *par = (struct tga_par *) info->par;
455 u32 vhcr, vvcr, vvvr;
458 local_irq_save(flags);
460 vhcr = TGA_READ_REG(par, TGA_HORIZ_REG);
461 vvcr = TGA_READ_REG(par, TGA_VERT_REG);
462 vvvr = TGA_READ_REG(par, TGA_VALID_REG);
463 vvvr &= ~(TGA_VALID_VIDEO | TGA_VALID_BLANK);
466 case FB_BLANK_UNBLANK: /* Unblanking */
467 if (par->vesa_blanked) {
468 TGA_WRITE_REG(par, vhcr & 0xbfffffff, TGA_HORIZ_REG);
469 TGA_WRITE_REG(par, vvcr & 0xbfffffff, TGA_VERT_REG);
470 par->vesa_blanked = 0;
472 TGA_WRITE_REG(par, vvvr | TGA_VALID_VIDEO, TGA_VALID_REG);
475 case FB_BLANK_NORMAL: /* Normal blanking */
476 TGA_WRITE_REG(par, vvvr | TGA_VALID_VIDEO | TGA_VALID_BLANK,
480 case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */
481 TGA_WRITE_REG(par, vvcr | 0x40000000, TGA_VERT_REG);
482 TGA_WRITE_REG(par, vvvr | TGA_VALID_BLANK, TGA_VALID_REG);
483 par->vesa_blanked = 1;
486 case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */
487 TGA_WRITE_REG(par, vhcr | 0x40000000, TGA_HORIZ_REG);
488 TGA_WRITE_REG(par, vvvr | TGA_VALID_BLANK, TGA_VALID_REG);
489 par->vesa_blanked = 1;
492 case FB_BLANK_POWERDOWN: /* Poweroff */
493 TGA_WRITE_REG(par, vhcr | 0x40000000, TGA_HORIZ_REG);
494 TGA_WRITE_REG(par, vvcr | 0x40000000, TGA_VERT_REG);
495 TGA_WRITE_REG(par, vvvr | TGA_VALID_BLANK, TGA_VALID_REG);
496 par->vesa_blanked = 1;
500 local_irq_restore(flags);
510 * tgafb_imageblit - REQUIRED function. Can use generic routines if
511 * non acclerated hardware and packed pixel based.
512 * Copies a image from system memory to the screen.
514 * @info: frame buffer structure that represents a single frame buffer
515 * @image: structure defining the image.
518 tgafb_imageblit(struct fb_info *info, const struct fb_image *image)
520 static unsigned char const bitrev[256] = {
521 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
522 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
523 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
524 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
525 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
526 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
527 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
528 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
529 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
530 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
531 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
532 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
533 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
534 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
535 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
536 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
537 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
538 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
539 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
540 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
541 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
542 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
543 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
544 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
545 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
546 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
547 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
548 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
549 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
550 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
551 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
552 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
555 struct tga_par *par = (struct tga_par *) info->par;
556 u32 fgcolor, bgcolor, dx, dy, width, height, vxres, vyres, pixelmask;
557 unsigned long rincr, line_length, shift, pos, is8bpp;
559 const unsigned char *data;
560 void __iomem *regs_base;
561 void __iomem *fb_base;
565 width = image->width;
566 height = image->height;
567 vxres = info->var.xres_virtual;
568 vyres = info->var.yres_virtual;
569 line_length = info->fix.line_length;
570 rincr = (width + 7) / 8;
572 /* Crop the image to the screen. */
573 if (dx > vxres || dy > vyres)
575 if (dx + width > vxres)
577 if (dy + height > vyres)
580 /* For copies that aren't pixel expansion, there's little we
581 can do better than the generic code. */
582 /* ??? There is a DMA write mode; I wonder if that could be
583 made to pull the data from the image buffer... */
584 if (image->depth > 1) {
585 cfb_imageblit(info, image);
589 regs_base = par->tga_regs_base;
590 fb_base = par->tga_fb_base;
591 is8bpp = info->var.bits_per_pixel == 8;
593 /* Expand the color values to fill 32-bits. */
594 /* ??? Would be nice to notice colour changes elsewhere, so
595 that we can do this only when necessary. */
596 fgcolor = image->fg_color;
597 bgcolor = image->bg_color;
599 fgcolor |= fgcolor << 8;
600 fgcolor |= fgcolor << 16;
601 bgcolor |= bgcolor << 8;
602 bgcolor |= bgcolor << 16;
605 fgcolor = ((u32 *)info->pseudo_palette)[fgcolor];
607 bgcolor = ((u32 *)info->pseudo_palette)[bgcolor];
609 __raw_writel(fgcolor, regs_base + TGA_FOREGROUND_REG);
610 __raw_writel(bgcolor, regs_base + TGA_BACKGROUND_REG);
612 /* Acquire proper alignment; set up the PIXELMASK register
613 so that we only write the proper character cell. */
614 pos = dy * line_length;
621 shift = (pos & 7) >> 2;
625 data = (const unsigned char *) image->data;
627 /* Enable opaque stipple mode. */
629 ? TGA_MODE_SBM_8BPP | TGA_MODE_OPAQUE_STIPPLE
630 : TGA_MODE_SBM_24BPP | TGA_MODE_OPAQUE_STIPPLE),
631 regs_base + TGA_MODE_REG);
633 if (width + shift <= 32) {
634 unsigned long bwidth;
636 /* Handle common case of imaging a single character, in
637 a font less than 32 pixels wide. */
639 pixelmask = (1 << width) - 1;
641 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
644 bwidth = (width + 7) / 8;
646 for (i = 0; i < height; ++i) {
649 /* The image data is bit big endian; we need
651 for (j = 0; j < bwidth; ++j)
652 mask |= bitrev[data[j]] << (j * 8);
654 __raw_writel(mask << shift, fb_base + pos);
660 __raw_writel(0xffffffff, regs_base + TGA_PIXELMASK_REG);
661 } else if (shift == 0) {
662 unsigned long pos0 = pos;
663 const unsigned char *data0 = data;
664 unsigned long bincr = (is8bpp ? 8 : 8*4);
665 unsigned long bwidth;
667 /* Handle another common case in which accel_putcs
668 generates a large bitmap, which happens to be aligned.
669 Allow the tail to be misaligned. This case is
670 interesting because we've not got to hold partial
671 bytes across the words being written. */
675 bwidth = (width / 8) & -4;
676 for (i = 0; i < height; ++i) {
677 for (j = 0; j < bwidth; j += 4) {
679 mask |= bitrev[data[j+0]] << (0 * 8);
680 mask |= bitrev[data[j+1]] << (1 * 8);
681 mask |= bitrev[data[j+2]] << (2 * 8);
682 mask |= bitrev[data[j+3]] << (3 * 8);
683 __raw_writel(mask, fb_base + pos + j*bincr);
690 pixelmask = (1ul << (width & 31)) - 1;
692 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
695 pos = pos0 + bwidth*bincr;
696 data = data0 + bwidth;
697 bwidth = ((width & 31) + 7) / 8;
699 for (i = 0; i < height; ++i) {
701 for (j = 0; j < bwidth; ++j)
702 mask |= bitrev[data[j]] << (j * 8);
703 __raw_writel(mask, fb_base + pos);
708 __raw_writel(0xffffffff, regs_base + TGA_PIXELMASK_REG);
711 unsigned long pos0 = pos;
712 const unsigned char *data0 = data;
713 unsigned long bincr = (is8bpp ? 8 : 8*4);
714 unsigned long bwidth;
716 /* Finally, handle the generic case of misaligned start.
717 Here we split the write into 16-bit spans. This allows
718 us to use only one pixel mask, instead of four as would
719 be required by writing 24-bit spans. */
721 pixelmask = 0xffff << shift;
722 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
725 bwidth = (width / 8) & -2;
726 for (i = 0; i < height; ++i) {
727 for (j = 0; j < bwidth; j += 2) {
729 mask |= bitrev[data[j+0]] << (0 * 8);
730 mask |= bitrev[data[j+1]] << (1 * 8);
732 __raw_writel(mask, fb_base + pos + j*bincr);
739 pixelmask = ((1ul << (width & 15)) - 1) << shift;
741 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
744 pos = pos0 + bwidth*bincr;
745 data = data0 + bwidth;
746 bwidth = (width & 15) > 8;
748 for (i = 0; i < height; ++i) {
749 u32 mask = bitrev[data[0]];
751 mask |= bitrev[data[1]] << 8;
753 __raw_writel(mask, fb_base + pos);
759 __raw_writel(0xffffffff, regs_base + TGA_PIXELMASK_REG);
762 /* Disable opaque stipple mode. */
764 ? TGA_MODE_SBM_8BPP | TGA_MODE_SIMPLE
765 : TGA_MODE_SBM_24BPP | TGA_MODE_SIMPLE),
766 regs_base + TGA_MODE_REG);
770 * tgafb_fillrect - REQUIRED function. Can use generic routines if
771 * non acclerated hardware and packed pixel based.
772 * Draws a rectangle on the screen.
774 * @info: frame buffer structure that represents a single frame buffer
775 * @rect: structure defining the rectagle and operation.
778 tgafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
780 struct tga_par *par = (struct tga_par *) info->par;
781 int is8bpp = info->var.bits_per_pixel == 8;
782 u32 dx, dy, width, height, vxres, vyres, color;
783 unsigned long pos, align, line_length, i, j;
784 void __iomem *regs_base;
785 void __iomem *fb_base;
790 height = rect->height;
791 vxres = info->var.xres_virtual;
792 vyres = info->var.yres_virtual;
793 line_length = info->fix.line_length;
794 regs_base = par->tga_regs_base;
795 fb_base = par->tga_fb_base;
797 /* Crop the rectangle to the screen. */
798 if (dx > vxres || dy > vyres || !width || !height)
800 if (dx + width > vxres)
802 if (dy + height > vyres)
805 pos = dy * line_length + dx * (is8bpp ? 1 : 4);
807 /* ??? We could implement ROP_XOR with opaque fill mode
808 and a RasterOp setting of GXxor, but as far as I can
809 tell, this mode is not actually used in the kernel.
810 Thus I am ignoring it for now. */
811 if (rect->rop != ROP_COPY) {
812 cfb_fillrect(info, rect);
816 /* Expand the color value to fill 8 pixels. */
820 color |= color << 16;
821 __raw_writel(color, regs_base + TGA_BLOCK_COLOR0_REG);
822 __raw_writel(color, regs_base + TGA_BLOCK_COLOR1_REG);
825 color = ((u32 *)info->pseudo_palette)[color];
826 __raw_writel(color, regs_base + TGA_BLOCK_COLOR0_REG);
827 __raw_writel(color, regs_base + TGA_BLOCK_COLOR1_REG);
828 __raw_writel(color, regs_base + TGA_BLOCK_COLOR2_REG);
829 __raw_writel(color, regs_base + TGA_BLOCK_COLOR3_REG);
830 __raw_writel(color, regs_base + TGA_BLOCK_COLOR4_REG);
831 __raw_writel(color, regs_base + TGA_BLOCK_COLOR5_REG);
832 __raw_writel(color, regs_base + TGA_BLOCK_COLOR6_REG);
833 __raw_writel(color, regs_base + TGA_BLOCK_COLOR7_REG);
836 /* The DATA register holds the fill mask for block fill mode.
837 Since we're not stippling, this is all ones. */
838 __raw_writel(0xffffffff, regs_base + TGA_DATA_REG);
840 /* Enable block fill mode. */
842 ? TGA_MODE_SBM_8BPP | TGA_MODE_BLOCK_FILL
843 : TGA_MODE_SBM_24BPP | TGA_MODE_BLOCK_FILL),
844 regs_base + TGA_MODE_REG);
847 /* We can fill 2k pixels per operation. Notice blocks that fit
848 the width of the screen so that we can take advantage of this
849 and fill more than one line per write. */
850 if (width == line_length)
851 width *= height, height = 1;
853 /* The write into the frame buffer must be aligned to 4 bytes,
854 but we are allowed to encode the offset within the word in
855 the data word written. */
856 align = (pos & 3) << 16;
862 data = (width - 1) | align;
864 for (i = 0; i < height; ++i) {
865 __raw_writel(data, fb_base + pos);
869 unsigned long Bpp = (is8bpp ? 1 : 4);
870 unsigned long nwidth = width & -2048;
873 fdata = (2048 - 1) | align;
874 ldata = ((width & 2047) - 1) | align;
876 for (i = 0; i < height; ++i) {
877 for (j = 0; j < nwidth; j += 2048)
878 __raw_writel(fdata, fb_base + pos + j*Bpp);
880 __raw_writel(ldata, fb_base + pos + j*Bpp);
886 /* Disable block fill mode. */
888 ? TGA_MODE_SBM_8BPP | TGA_MODE_SIMPLE
889 : TGA_MODE_SBM_24BPP | TGA_MODE_SIMPLE),
890 regs_base + TGA_MODE_REG);
894 * tgafb_copyarea - REQUIRED function. Can use generic routines if
895 * non acclerated hardware and packed pixel based.
896 * Copies on area of the screen to another area.
898 * @info: frame buffer structure that represents a single frame buffer
899 * @area: structure defining the source and destination.
902 /* Handle the special case of copying entire lines, e.g. during scrolling.
903 We can avoid a lot of needless computation in this case. In the 8bpp
904 case we need to use the COPY64 registers instead of mask writes into
905 the frame buffer to achieve maximum performance. */
908 copyarea_line_8bpp(struct fb_info *info, u32 dy, u32 sy,
909 u32 height, u32 width)
911 struct tga_par *par = (struct tga_par *) info->par;
912 void __iomem *tga_regs = par->tga_regs_base;
913 unsigned long dpos, spos, i, n64;
915 /* Set up the MODE and PIXELSHIFT registers. */
916 __raw_writel(TGA_MODE_SBM_8BPP | TGA_MODE_COPY, tga_regs+TGA_MODE_REG);
917 __raw_writel(0, tga_regs+TGA_PIXELSHIFT_REG);
920 n64 = (height * width) / 64;
923 spos = (sy + height) * width;
924 dpos = (dy + height) * width;
926 for (i = 0; i < n64; ++i) {
929 __raw_writel(spos, tga_regs+TGA_COPY64_SRC);
931 __raw_writel(dpos, tga_regs+TGA_COPY64_DST);
938 for (i = 0; i < n64; ++i) {
939 __raw_writel(spos, tga_regs+TGA_COPY64_SRC);
941 __raw_writel(dpos, tga_regs+TGA_COPY64_DST);
948 /* Reset the MODE register to normal. */
949 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG);
953 copyarea_line_32bpp(struct fb_info *info, u32 dy, u32 sy,
954 u32 height, u32 width)
956 struct tga_par *par = (struct tga_par *) info->par;
957 void __iomem *tga_regs = par->tga_regs_base;
958 void __iomem *tga_fb = par->tga_fb_base;
961 unsigned long i, n16;
963 /* Set up the MODE and PIXELSHIFT registers. */
964 __raw_writel(TGA_MODE_SBM_24BPP | TGA_MODE_COPY, tga_regs+TGA_MODE_REG);
965 __raw_writel(0, tga_regs+TGA_PIXELSHIFT_REG);
968 n16 = (height * width) / 16;
971 src = tga_fb + (sy + height) * width * 4;
972 dst = tga_fb + (dy + height) * width * 4;
974 for (i = 0; i < n16; ++i) {
977 __raw_writel(0xffff, src);
979 __raw_writel(0xffff, dst);
983 src = tga_fb + sy * width * 4;
984 dst = tga_fb + dy * width * 4;
986 for (i = 0; i < n16; ++i) {
987 __raw_writel(0xffff, src);
989 __raw_writel(0xffff, dst);
996 /* Reset the MODE register to normal. */
997 __raw_writel(TGA_MODE_SBM_24BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG);
1000 /* The general case of forward copy in 8bpp mode. */
1002 copyarea_foreward_8bpp(struct fb_info *info, u32 dx, u32 dy, u32 sx, u32 sy,
1003 u32 height, u32 width, u32 line_length)
1005 struct tga_par *par = (struct tga_par *) info->par;
1006 unsigned long i, copied, left;
1007 unsigned long dpos, spos, dalign, salign, yincr;
1008 u32 smask_first, dmask_first, dmask_last;
1009 int pixel_shift, need_prime, need_second;
1010 unsigned long n64, n32, xincr_first;
1011 void __iomem *tga_regs;
1012 void __iomem *tga_fb;
1014 yincr = line_length;
1021 /* Compute the offsets and alignments in the frame buffer.
1022 More than anything else, these control how we do copies. */
1023 dpos = dy * line_length + dx;
1024 spos = sy * line_length + sx;
1030 /* Compute the value for the PIXELSHIFT register. This controls
1031 both non-co-aligned source and destination and copy direction. */
1032 if (dalign >= salign)
1033 pixel_shift = dalign - salign;
1035 pixel_shift = 8 - (salign - dalign);
1037 /* Figure out if we need an additional priming step for the
1038 residue register. */
1039 need_prime = (salign > dalign);
1043 /* Begin by copying the leading unaligned destination. Copy enough
1044 to make the next destination address 32-byte aligned. */
1045 copied = 32 - (dalign + (dpos & 31));
1048 xincr_first = (copied + 7) & -8;
1049 smask_first = dmask_first = (1ul << copied) - 1;
1050 smask_first <<= salign;
1051 dmask_first <<= dalign + need_prime*8;
1052 if (need_prime && copied > 24)
1054 left = width - copied;
1056 /* Care for small copies. */
1057 if (copied > width) {
1059 t = (1ul << width) - 1;
1060 t <<= dalign + need_prime*8;
1065 /* Attempt to use 64-byte copies. This is only possible if the
1066 source and destination are co-aligned at 64 bytes. */
1067 n64 = need_second = 0;
1068 if ((dpos & 63) == (spos & 63)
1069 && (height == 1 || line_length % 64 == 0)) {
1070 /* We may need a 32-byte copy to ensure 64 byte alignment. */
1071 need_second = (dpos + xincr_first) & 63;
1072 if ((need_second & 32) != need_second)
1073 printk(KERN_ERR "tgafb: need_second wrong\n");
1074 if (left >= need_second + 64) {
1075 left -= need_second;
1082 /* Copy trailing full 32-byte sections. This will be the main
1083 loop if the 64 byte loop can't be used. */
1087 /* Copy the trailing unaligned destination. */
1088 dmask_last = (1ul << left) - 1;
1090 tga_regs = par->tga_regs_base;
1091 tga_fb = par->tga_fb_base;
1093 /* Set up the MODE and PIXELSHIFT registers. */
1094 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_COPY, tga_regs+TGA_MODE_REG);
1095 __raw_writel(pixel_shift, tga_regs+TGA_PIXELSHIFT_REG);
1098 for (i = 0; i < height; ++i) {
1103 sfb = tga_fb + spos;
1104 dfb = tga_fb + dpos;
1106 __raw_writel(smask_first, sfb);
1108 __raw_writel(dmask_first, dfb);
1115 __raw_writel(0xffffffff, sfb);
1117 __raw_writel(0xffffffff, dfb);
1123 if (n64 && (((unsigned long)sfb | (unsigned long)dfb) & 63))
1125 "tgafb: misaligned copy64 (s:%p, d:%p)\n",
1128 for (j = 0; j < n64; ++j) {
1129 __raw_writel(sfb - tga_fb, tga_regs+TGA_COPY64_SRC);
1131 __raw_writel(dfb - tga_fb, tga_regs+TGA_COPY64_DST);
1137 for (j = 0; j < n32; ++j) {
1138 __raw_writel(0xffffffff, sfb);
1140 __raw_writel(0xffffffff, dfb);
1147 __raw_writel(0xffffffff, sfb);
1149 __raw_writel(dmask_last, dfb);
1157 /* Reset the MODE register to normal. */
1158 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG);
1161 /* The (almost) general case of backward copy in 8bpp mode. */
1163 copyarea_backward_8bpp(struct fb_info *info, u32 dx, u32 dy, u32 sx, u32 sy,
1164 u32 height, u32 width, u32 line_length,
1165 const struct fb_copyarea *area)
1167 struct tga_par *par = (struct tga_par *) info->par;
1168 unsigned long i, left, yincr;
1169 unsigned long depos, sepos, dealign, sealign;
1170 u32 mask_first, mask_last;
1172 void __iomem *tga_regs;
1173 void __iomem *tga_fb;
1175 yincr = line_length;
1182 /* Compute the offsets and alignments in the frame buffer.
1183 More than anything else, these control how we do copies. */
1184 depos = dy * line_length + dx + width;
1185 sepos = sy * line_length + sx + width;
1186 dealign = depos & 7;
1187 sealign = sepos & 7;
1189 /* ??? The documentation appears to be incorrect (or very
1190 misleading) wrt how pixel shifting works in backward copy
1191 mode, i.e. when PIXELSHIFT is negative. I give up for now.
1192 Do handle the common case of co-aligned backward copies,
1193 but frob everything else back on generic code. */
1194 if (dealign != sealign) {
1195 cfb_copyarea(info, area);
1199 /* We begin the copy with the trailing pixels of the
1200 unaligned destination. */
1201 mask_first = (1ul << dealign) - 1;
1202 left = width - dealign;
1204 /* Care for small copies. */
1205 if (dealign > width) {
1206 mask_first ^= (1ul << (dealign - width)) - 1;
1210 /* Next copy full words at a time. */
1214 /* Finally copy the unaligned head of the span. */
1215 mask_last = -1 << (32 - left);
1217 tga_regs = par->tga_regs_base;
1218 tga_fb = par->tga_fb_base;
1220 /* Set up the MODE and PIXELSHIFT registers. */
1221 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_COPY, tga_regs+TGA_MODE_REG);
1222 __raw_writel(0, tga_regs+TGA_PIXELSHIFT_REG);
1225 for (i = 0; i < height; ++i) {
1230 sfb = tga_fb + sepos;
1231 dfb = tga_fb + depos;
1233 __raw_writel(mask_first, sfb);
1235 __raw_writel(mask_first, dfb);
1239 for (j = 0; j < n32; ++j) {
1242 __raw_writel(0xffffffff, sfb);
1244 __raw_writel(0xffffffff, dfb);
1251 __raw_writel(mask_last, sfb);
1253 __raw_writel(mask_last, dfb);
1261 /* Reset the MODE register to normal. */
1262 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG);
1266 tgafb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
1268 unsigned long dx, dy, width, height, sx, sy, vxres, vyres;
1269 unsigned long line_length, bpp;
1273 width = area->width;
1274 height = area->height;
1277 vxres = info->var.xres_virtual;
1278 vyres = info->var.yres_virtual;
1279 line_length = info->fix.line_length;
1281 /* The top left corners must be in the virtual screen. */
1282 if (dx > vxres || sx > vxres || dy > vyres || sy > vyres)
1285 /* Clip the destination. */
1286 if (dx + width > vxres)
1288 if (dy + height > vyres)
1289 height = vyres - dy;
1291 /* The source must be completely inside the virtual screen. */
1292 if (sx + width > vxres || sy + height > vyres)
1295 bpp = info->var.bits_per_pixel;
1297 /* Detect copies of the entire line. */
1298 if (width * (bpp >> 3) == line_length) {
1300 copyarea_line_8bpp(info, dy, sy, height, width);
1302 copyarea_line_32bpp(info, dy, sy, height, width);
1305 /* ??? The documentation is unclear to me exactly how the pixelshift
1306 register works in 32bpp mode. Since I don't have hardware to test,
1307 give up for now and fall back on the generic routines. */
1309 cfb_copyarea(info, area);
1311 /* Detect overlapping source and destination that requires
1313 else if (dy == sy && dx > sx && dx < sx + width)
1314 copyarea_backward_8bpp(info, dx, dy, sx, sy, height,
1315 width, line_length, area);
1317 copyarea_foreward_8bpp(info, dx, dy, sx, sy, height,
1318 width, line_length);
1327 tgafb_init_fix(struct fb_info *info)
1329 struct tga_par *par = (struct tga_par *)info->par;
1330 u8 tga_type = par->tga_type;
1331 const char *tga_type_name;
1334 case TGA_TYPE_8PLANE:
1335 tga_type_name = "Digital ZLXp-E1";
1337 case TGA_TYPE_24PLANE:
1338 tga_type_name = "Digital ZLXp-E2";
1340 case TGA_TYPE_24PLUSZ:
1341 tga_type_name = "Digital ZLXp-E3";
1344 tga_type_name = "Unknown";
1348 strlcpy(info->fix.id, tga_type_name, sizeof(info->fix.id));
1350 info->fix.type = FB_TYPE_PACKED_PIXELS;
1351 info->fix.type_aux = 0;
1352 info->fix.visual = (tga_type == TGA_TYPE_8PLANE
1353 ? FB_VISUAL_PSEUDOCOLOR
1354 : FB_VISUAL_TRUECOLOR);
1356 info->fix.line_length = par->xres * (par->bits_per_pixel >> 3);
1357 info->fix.smem_start = (size_t) par->tga_fb_base;
1358 info->fix.smem_len = info->fix.line_length * par->yres;
1359 info->fix.mmio_start = (size_t) par->tga_regs_base;
1360 info->fix.mmio_len = 512;
1362 info->fix.xpanstep = 0;
1363 info->fix.ypanstep = 0;
1364 info->fix.ywrapstep = 0;
1366 info->fix.accel = FB_ACCEL_DEC_TGA;
1369 static __devinit int
1370 tgafb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
1372 static unsigned int const fb_offset_presets[4] = {
1373 TGA_8PLANE_FB_OFFSET,
1374 TGA_24PLANE_FB_OFFSET,
1376 TGA_24PLUSZ_FB_OFFSET
1380 struct fb_info info;
1382 u32 pseudo_palette[16];
1385 void __iomem *mem_base;
1386 unsigned long bar0_start, bar0_len;
1390 /* Enable device in PCI config. */
1391 if (pci_enable_device(pdev)) {
1392 printk(KERN_ERR "tgafb: Cannot enable PCI device\n");
1396 /* Allocate the fb and par structures. */
1397 all = kmalloc(sizeof(*all), GFP_KERNEL);
1399 printk(KERN_ERR "tgafb: Cannot allocate memory\n");
1402 memset(all, 0, sizeof(*all));
1403 pci_set_drvdata(pdev, all);
1405 /* Request the mem regions. */
1406 bar0_start = pci_resource_start(pdev, 0);
1407 bar0_len = pci_resource_len(pdev, 0);
1409 if (!request_mem_region (bar0_start, bar0_len, "tgafb")) {
1410 printk(KERN_ERR "tgafb: cannot reserve FB region\n");
1414 /* Map the framebuffer. */
1415 mem_base = ioremap(bar0_start, bar0_len);
1417 printk(KERN_ERR "tgafb: Cannot map MMIO\n");
1421 /* Grab info about the card. */
1422 tga_type = (readl(mem_base) >> 12) & 0x0f;
1423 all->par.pdev = pdev;
1424 all->par.tga_mem_base = mem_base;
1425 all->par.tga_fb_base = mem_base + fb_offset_presets[tga_type];
1426 all->par.tga_regs_base = mem_base + TGA_REGS_OFFSET;
1427 all->par.tga_type = tga_type;
1428 pci_read_config_byte(pdev, PCI_REVISION_ID, &all->par.tga_chip_rev);
1430 /* Setup framebuffer. */
1431 all->info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
1432 FBINFO_HWACCEL_IMAGEBLIT | FBINFO_HWACCEL_FILLRECT;
1433 all->info.fbops = &tgafb_ops;
1434 all->info.screen_base = all->par.tga_fb_base;
1435 all->info.par = &all->par;
1436 all->info.pseudo_palette = all->pseudo_palette;
1438 /* This should give a reasonable default video mode. */
1440 ret = fb_find_mode(&all->info.var, &all->info, mode_option,
1442 tga_type == TGA_TYPE_8PLANE ? 8 : 32);
1443 if (ret == 0 || ret == 4) {
1444 printk(KERN_ERR "tgafb: Could not find valid video mode\n");
1449 if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
1450 printk(KERN_ERR "tgafb: Could not allocate color map\n");
1455 tgafb_set_par(&all->info);
1456 tgafb_init_fix(&all->info);
1458 all->info.device = &pdev->dev;
1459 if (register_framebuffer(&all->info) < 0) {
1460 printk(KERN_ERR "tgafb: Could not register framebuffer\n");
1465 printk(KERN_INFO "tgafb: DC21030 [TGA] detected, rev=0x%02x\n",
1466 all->par.tga_chip_rev);
1467 printk(KERN_INFO "tgafb: at PCI bus %d, device %d, function %d\n",
1468 pdev->bus->number, PCI_SLOT(pdev->devfn),
1469 PCI_FUNC(pdev->devfn));
1470 printk(KERN_INFO "fb%d: %s frame buffer device at 0x%lx\n",
1471 all->info.node, all->info.fix.id, bar0_start);
1476 release_mem_region(bar0_start, bar0_len);
1483 tgafb_pci_unregister(struct pci_dev *pdev)
1485 struct fb_info *info = pci_get_drvdata(pdev);
1486 struct tga_par *par = info->par;
1490 unregister_framebuffer(info);
1491 iounmap(par->tga_mem_base);
1492 release_mem_region(pci_resource_start(pdev, 0),
1493 pci_resource_len(pdev, 0));
1501 pci_unregister_driver(&tgafb_driver);
1507 tgafb_setup(char *arg)
1512 while ((this_opt = strsep(&arg, ","))) {
1515 if (!strncmp(this_opt, "mode:", 5))
1516 mode_option = this_opt+5;
1519 "tgafb: unknown parameter %s\n",
1526 #endif /* !MODULE */
1532 char *option = NULL;
1534 if (fb_get_options("tgafb", &option))
1536 tgafb_setup(option);
1538 return pci_register_driver(&tgafb_driver);
1545 module_init(tgafb_init);
1548 module_exit(tgafb_exit);
1551 MODULE_DESCRIPTION("framebuffer driver for TGA chipset");
1552 MODULE_LICENSE("GPL");