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,
66 .fb_cursor = soft_cursor,
71 * PCI registration operations
74 static struct pci_device_id const tgafb_pci_table[] = {
75 { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TGA, PCI_ANY_ID, PCI_ANY_ID,
79 static struct pci_driver tgafb_driver = {
81 .id_table = tgafb_pci_table,
82 .probe = tgafb_pci_register,
83 .remove = __devexit_p(tgafb_pci_unregister),
88 * tgafb_check_var - Optional function. Validates a var passed in.
89 * @var: frame buffer variable screen structure
90 * @info: frame buffer structure that represents a single frame buffer
93 tgafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
95 struct tga_par *par = (struct tga_par *)info->par;
97 if (par->tga_type == TGA_TYPE_8PLANE) {
98 if (var->bits_per_pixel != 8)
101 if (var->bits_per_pixel != 32)
105 if (var->xres_virtual != var->xres || var->yres_virtual != var->yres)
109 if (1000000000 / var->pixclock > TGA_PLL_MAX_FREQ)
111 if ((var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED)
114 /* Some of the acceleration routines assume the line width is
115 a multiple of 64 bytes. */
116 if (var->xres * (par->tga_type == TGA_TYPE_8PLANE ? 1 : 4) % 64)
123 * tgafb_set_par - Optional function. Alters the hardware state.
124 * @info: frame buffer structure that represents a single frame buffer
127 tgafb_set_par(struct fb_info *info)
129 static unsigned int const deep_presets[4] = {
135 static unsigned int const rasterop_presets[4] = {
141 static unsigned int const mode_presets[4] = {
147 static unsigned int const base_addr_presets[4] = {
154 struct tga_par *par = (struct tga_par *) info->par;
155 u32 htimings, vtimings, pll_freq;
159 /* Encode video timings. */
160 htimings = (((info->var.xres/4) & TGA_HORIZ_ACT_LSB)
161 | (((info->var.xres/4) & 0x600 << 19) & TGA_HORIZ_ACT_MSB));
162 vtimings = (info->var.yres & TGA_VERT_ACTIVE);
163 htimings |= ((info->var.right_margin/4) << 9) & TGA_HORIZ_FP;
164 vtimings |= (info->var.lower_margin << 11) & TGA_VERT_FP;
165 htimings |= ((info->var.hsync_len/4) << 14) & TGA_HORIZ_SYNC;
166 vtimings |= (info->var.vsync_len << 16) & TGA_VERT_SYNC;
167 htimings |= ((info->var.left_margin/4) << 21) & TGA_HORIZ_BP;
168 vtimings |= (info->var.upper_margin << 22) & TGA_VERT_BP;
170 if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
171 htimings |= TGA_HORIZ_POLARITY;
172 if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
173 vtimings |= TGA_VERT_POLARITY;
175 par->htimings = htimings;
176 par->vtimings = vtimings;
178 par->sync_on_green = !!(info->var.sync & FB_SYNC_ON_GREEN);
180 /* Store other useful values in par. */
181 par->xres = info->var.xres;
182 par->yres = info->var.yres;
183 par->pll_freq = pll_freq = 1000000000 / info->var.pixclock;
184 par->bits_per_pixel = info->var.bits_per_pixel;
186 tga_type = par->tga_type;
188 /* First, disable video. */
189 TGA_WRITE_REG(par, TGA_VALID_VIDEO | TGA_VALID_BLANK, TGA_VALID_REG);
191 /* Write the DEEP register. */
192 while (TGA_READ_REG(par, TGA_CMD_STAT_REG) & 1) /* wait for not busy */
195 TGA_WRITE_REG(par, deep_presets[tga_type], TGA_DEEP_REG);
196 while (TGA_READ_REG(par, TGA_CMD_STAT_REG) & 1) /* wait for not busy */
200 /* Write some more registers. */
201 TGA_WRITE_REG(par, rasterop_presets[tga_type], TGA_RASTEROP_REG);
202 TGA_WRITE_REG(par, mode_presets[tga_type], TGA_MODE_REG);
203 TGA_WRITE_REG(par, base_addr_presets[tga_type], TGA_BASE_ADDR_REG);
205 /* Calculate & write the PLL. */
206 tgafb_set_pll(par, pll_freq);
208 /* Write some more registers. */
209 TGA_WRITE_REG(par, 0xffffffff, TGA_PLANEMASK_REG);
210 TGA_WRITE_REG(par, 0xffffffff, TGA_PIXELMASK_REG);
212 /* Init video timing regs. */
213 TGA_WRITE_REG(par, htimings, TGA_HORIZ_REG);
214 TGA_WRITE_REG(par, vtimings, TGA_VERT_REG);
216 /* Initalise RAMDAC. */
217 if (tga_type == TGA_TYPE_8PLANE) {
219 /* Init BT485 RAMDAC registers. */
220 BT485_WRITE(par, 0xa2 | (par->sync_on_green ? 0x8 : 0x0),
222 BT485_WRITE(par, 0x01, BT485_ADDR_PAL_WRITE);
223 BT485_WRITE(par, 0x14, BT485_CMD_3); /* cursor 64x64 */
224 BT485_WRITE(par, 0x40, BT485_CMD_1);
225 BT485_WRITE(par, 0x20, BT485_CMD_2); /* cursor off, for now */
226 BT485_WRITE(par, 0xff, BT485_PIXEL_MASK);
228 /* Fill palette registers. */
229 BT485_WRITE(par, 0x00, BT485_ADDR_PAL_WRITE);
230 TGA_WRITE_REG(par, BT485_DATA_PAL, TGA_RAMDAC_SETUP_REG);
232 for (i = 0; i < 16; i++) {
234 TGA_WRITE_REG(par, default_red[j]|(BT485_DATA_PAL<<8),
236 TGA_WRITE_REG(par, default_grn[j]|(BT485_DATA_PAL<<8),
238 TGA_WRITE_REG(par, default_blu[j]|(BT485_DATA_PAL<<8),
241 for (i = 0; i < 240*3; i += 4) {
242 TGA_WRITE_REG(par, 0x55|(BT485_DATA_PAL<<8),
244 TGA_WRITE_REG(par, 0x00|(BT485_DATA_PAL<<8),
246 TGA_WRITE_REG(par, 0x00|(BT485_DATA_PAL<<8),
248 TGA_WRITE_REG(par, 0x00|(BT485_DATA_PAL<<8),
252 } else { /* 24-plane or 24plusZ */
254 /* Init BT463 registers. */
255 BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_0, 0x40);
256 BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_1, 0x08);
257 BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_2,
258 (par->sync_on_green ? 0x80 : 0x40));
260 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_0, 0xff);
261 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_1, 0xff);
262 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_2, 0xff);
263 BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_3, 0x0f);
265 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_0, 0x00);
266 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_1, 0x00);
267 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_2, 0x00);
268 BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_3, 0x00);
270 /* Fill the palette. */
271 BT463_LOAD_ADDR(par, 0x0000);
272 TGA_WRITE_REG(par, BT463_PALETTE<<2, TGA_RAMDAC_REG);
274 for (i = 0; i < 16; i++) {
276 TGA_WRITE_REG(par, default_red[j]|(BT463_PALETTE<<10),
278 TGA_WRITE_REG(par, default_grn[j]|(BT463_PALETTE<<10),
280 TGA_WRITE_REG(par, default_blu[j]|(BT463_PALETTE<<10),
283 for (i = 0; i < 512*3; i += 4) {
284 TGA_WRITE_REG(par, 0x55|(BT463_PALETTE<<10),
286 TGA_WRITE_REG(par, 0x00|(BT463_PALETTE<<10),
288 TGA_WRITE_REG(par, 0x00|(BT463_PALETTE<<10),
290 TGA_WRITE_REG(par, 0x00|(BT463_PALETTE<<10),
294 /* Fill window type table after start of vertical retrace. */
295 while (!(TGA_READ_REG(par, TGA_INTR_STAT_REG) & 0x01))
297 TGA_WRITE_REG(par, 0x01, TGA_INTR_STAT_REG);
299 while (!(TGA_READ_REG(par, TGA_INTR_STAT_REG) & 0x01))
301 TGA_WRITE_REG(par, 0x01, TGA_INTR_STAT_REG);
303 BT463_LOAD_ADDR(par, BT463_WINDOW_TYPE_BASE);
304 TGA_WRITE_REG(par, BT463_REG_ACC<<2, TGA_RAMDAC_SETUP_REG);
306 for (i = 0; i < 16; i++) {
307 TGA_WRITE_REG(par, 0x00|(BT463_REG_ACC<<10),
309 TGA_WRITE_REG(par, 0x01|(BT463_REG_ACC<<10),
311 TGA_WRITE_REG(par, 0x80|(BT463_REG_ACC<<10),
317 /* Finally, enable video scan (and pray for the monitor... :-) */
318 TGA_WRITE_REG(par, TGA_VALID_VIDEO, TGA_VALID_REG);
323 #define DIFFCHECK(X) \
326 int delta = f - (TGA_PLL_BASE_FREQ * (X)) / (r << shift); \
329 if (delta < min_diff) \
330 min_diff = delta, vm = m, va = a, vr = r; \
335 tgafb_set_pll(struct tga_par *par, int f)
337 int n, shift, base, min_diff, target;
338 int r,a,m,vm = 34, va = 1, vr = 30;
340 for (r = 0 ; r < 12 ; r++)
341 TGA_WRITE_REG(par, !r, TGA_CLOCK_REG);
343 if (f > TGA_PLL_MAX_FREQ)
344 f = TGA_PLL_MAX_FREQ;
346 if (f >= TGA_PLL_MAX_FREQ / 2)
348 else if (f >= TGA_PLL_MAX_FREQ / 4)
353 TGA_WRITE_REG(par, shift & 1, TGA_CLOCK_REG);
354 TGA_WRITE_REG(par, shift >> 1, TGA_CLOCK_REG);
356 for (r = 0 ; r < 10 ; r++)
357 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
360 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
361 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
363 else if (f <= 200000) {
364 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
365 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
368 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
369 TGA_WRITE_REG(par, 1, 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, 0, TGA_CLOCK_REG);
375 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
376 TGA_WRITE_REG(par, 0, TGA_CLOCK_REG);
377 TGA_WRITE_REG(par, 1, TGA_CLOCK_REG);
379 target = (f << shift) / TGA_PLL_BASE_FREQ;
380 min_diff = TGA_PLL_MAX_FREQ;
387 for (n = base < 7 ? 7 : base; n < base + target && n < 449; n++) {
388 m = ((n + 3) / 7) - 1;
390 DIFFCHECK((m + 1) * 7);
392 DIFFCHECK((m + 1) * 7);
403 for (r = 0; r < 8; r++)
404 TGA_WRITE_REG(par, (vm >> r) & 1, TGA_CLOCK_REG);
405 for (r = 0; r < 8 ; r++)
406 TGA_WRITE_REG(par, (va >> r) & 1, TGA_CLOCK_REG);
407 for (r = 0; r < 7 ; r++)
408 TGA_WRITE_REG(par, (vr >> r) & 1, TGA_CLOCK_REG);
409 TGA_WRITE_REG(par, ((vr >> 7) & 1)|2, TGA_CLOCK_REG);
414 * tgafb_setcolreg - Optional function. Sets a color register.
415 * @regno: boolean, 0 copy local, 1 get_user() function
416 * @red: frame buffer colormap structure
417 * @green: The green value which can be up to 16 bits wide
418 * @blue: The blue value which can be up to 16 bits wide.
419 * @transp: If supported the alpha value which can be up to 16 bits wide.
420 * @info: frame buffer info structure
423 tgafb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue,
424 unsigned transp, struct fb_info *info)
426 struct tga_par *par = (struct tga_par *) info->par;
434 if (par->tga_type == TGA_TYPE_8PLANE) {
435 BT485_WRITE(par, regno, BT485_ADDR_PAL_WRITE);
436 TGA_WRITE_REG(par, BT485_DATA_PAL, TGA_RAMDAC_SETUP_REG);
437 TGA_WRITE_REG(par, red|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG);
438 TGA_WRITE_REG(par, green|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG);
439 TGA_WRITE_REG(par, blue|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG);
440 } else if (regno < 16) {
441 u32 value = (red << 16) | (green << 8) | blue;
442 ((u32 *)info->pseudo_palette)[regno] = value;
450 * tgafb_blank - Optional function. Blanks the display.
451 * @blank_mode: the blank mode we want.
452 * @info: frame buffer structure that represents a single frame buffer
455 tgafb_blank(int blank, struct fb_info *info)
457 struct tga_par *par = (struct tga_par *) info->par;
458 u32 vhcr, vvcr, vvvr;
461 local_irq_save(flags);
463 vhcr = TGA_READ_REG(par, TGA_HORIZ_REG);
464 vvcr = TGA_READ_REG(par, TGA_VERT_REG);
465 vvvr = TGA_READ_REG(par, TGA_VALID_REG);
466 vvvr &= ~(TGA_VALID_VIDEO | TGA_VALID_BLANK);
469 case FB_BLANK_UNBLANK: /* Unblanking */
470 if (par->vesa_blanked) {
471 TGA_WRITE_REG(par, vhcr & 0xbfffffff, TGA_HORIZ_REG);
472 TGA_WRITE_REG(par, vvcr & 0xbfffffff, TGA_VERT_REG);
473 par->vesa_blanked = 0;
475 TGA_WRITE_REG(par, vvvr | TGA_VALID_VIDEO, TGA_VALID_REG);
478 case FB_BLANK_NORMAL: /* Normal blanking */
479 TGA_WRITE_REG(par, vvvr | TGA_VALID_VIDEO | TGA_VALID_BLANK,
483 case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */
484 TGA_WRITE_REG(par, vvcr | 0x40000000, TGA_VERT_REG);
485 TGA_WRITE_REG(par, vvvr | TGA_VALID_BLANK, TGA_VALID_REG);
486 par->vesa_blanked = 1;
489 case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */
490 TGA_WRITE_REG(par, vhcr | 0x40000000, TGA_HORIZ_REG);
491 TGA_WRITE_REG(par, vvvr | TGA_VALID_BLANK, TGA_VALID_REG);
492 par->vesa_blanked = 1;
495 case FB_BLANK_POWERDOWN: /* Poweroff */
496 TGA_WRITE_REG(par, vhcr | 0x40000000, TGA_HORIZ_REG);
497 TGA_WRITE_REG(par, vvcr | 0x40000000, TGA_VERT_REG);
498 TGA_WRITE_REG(par, vvvr | TGA_VALID_BLANK, TGA_VALID_REG);
499 par->vesa_blanked = 1;
503 local_irq_restore(flags);
513 * tgafb_imageblit - REQUIRED function. Can use generic routines if
514 * non acclerated hardware and packed pixel based.
515 * Copies a image from system memory to the screen.
517 * @info: frame buffer structure that represents a single frame buffer
518 * @image: structure defining the image.
521 tgafb_imageblit(struct fb_info *info, const struct fb_image *image)
523 static unsigned char const bitrev[256] = {
524 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
525 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
526 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
527 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
528 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
529 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
530 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
531 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
532 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
533 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
534 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
535 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
536 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
537 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
538 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
539 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
540 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
541 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
542 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
543 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
544 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
545 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
546 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
547 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
548 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
549 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
550 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
551 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
552 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
553 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
554 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
555 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
558 struct tga_par *par = (struct tga_par *) info->par;
559 u32 fgcolor, bgcolor, dx, dy, width, height, vxres, vyres, pixelmask;
560 unsigned long rincr, line_length, shift, pos, is8bpp;
562 const unsigned char *data;
563 void __iomem *regs_base;
564 void __iomem *fb_base;
568 width = image->width;
569 height = image->height;
570 vxres = info->var.xres_virtual;
571 vyres = info->var.yres_virtual;
572 line_length = info->fix.line_length;
573 rincr = (width + 7) / 8;
575 /* Crop the image to the screen. */
576 if (dx > vxres || dy > vyres)
578 if (dx + width > vxres)
580 if (dy + height > vyres)
583 /* For copies that aren't pixel expansion, there's little we
584 can do better than the generic code. */
585 /* ??? There is a DMA write mode; I wonder if that could be
586 made to pull the data from the image buffer... */
587 if (image->depth > 1) {
588 cfb_imageblit(info, image);
592 regs_base = par->tga_regs_base;
593 fb_base = par->tga_fb_base;
594 is8bpp = info->var.bits_per_pixel == 8;
596 /* Expand the color values to fill 32-bits. */
597 /* ??? Would be nice to notice colour changes elsewhere, so
598 that we can do this only when necessary. */
599 fgcolor = image->fg_color;
600 bgcolor = image->bg_color;
602 fgcolor |= fgcolor << 8;
603 fgcolor |= fgcolor << 16;
604 bgcolor |= bgcolor << 8;
605 bgcolor |= bgcolor << 16;
608 fgcolor = ((u32 *)info->pseudo_palette)[fgcolor];
610 bgcolor = ((u32 *)info->pseudo_palette)[bgcolor];
612 __raw_writel(fgcolor, regs_base + TGA_FOREGROUND_REG);
613 __raw_writel(bgcolor, regs_base + TGA_BACKGROUND_REG);
615 /* Acquire proper alignment; set up the PIXELMASK register
616 so that we only write the proper character cell. */
617 pos = dy * line_length;
624 shift = (pos & 7) >> 2;
628 data = (const unsigned char *) image->data;
630 /* Enable opaque stipple mode. */
632 ? TGA_MODE_SBM_8BPP | TGA_MODE_OPAQUE_STIPPLE
633 : TGA_MODE_SBM_24BPP | TGA_MODE_OPAQUE_STIPPLE),
634 regs_base + TGA_MODE_REG);
636 if (width + shift <= 32) {
637 unsigned long bwidth;
639 /* Handle common case of imaging a single character, in
640 a font less than 32 pixels wide. */
642 pixelmask = (1 << width) - 1;
644 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
647 bwidth = (width + 7) / 8;
649 for (i = 0; i < height; ++i) {
652 /* The image data is bit big endian; we need
654 for (j = 0; j < bwidth; ++j)
655 mask |= bitrev[data[j]] << (j * 8);
657 __raw_writel(mask << shift, fb_base + pos);
663 __raw_writel(0xffffffff, regs_base + TGA_PIXELMASK_REG);
664 } else if (shift == 0) {
665 unsigned long pos0 = pos;
666 const unsigned char *data0 = data;
667 unsigned long bincr = (is8bpp ? 8 : 8*4);
668 unsigned long bwidth;
670 /* Handle another common case in which accel_putcs
671 generates a large bitmap, which happens to be aligned.
672 Allow the tail to be misaligned. This case is
673 interesting because we've not got to hold partial
674 bytes across the words being written. */
678 bwidth = (width / 8) & -4;
679 for (i = 0; i < height; ++i) {
680 for (j = 0; j < bwidth; j += 4) {
682 mask |= bitrev[data[j+0]] << (0 * 8);
683 mask |= bitrev[data[j+1]] << (1 * 8);
684 mask |= bitrev[data[j+2]] << (2 * 8);
685 mask |= bitrev[data[j+3]] << (3 * 8);
686 __raw_writel(mask, fb_base + pos + j*bincr);
693 pixelmask = (1ul << (width & 31)) - 1;
695 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
698 pos = pos0 + bwidth*bincr;
699 data = data0 + bwidth;
700 bwidth = ((width & 31) + 7) / 8;
702 for (i = 0; i < height; ++i) {
704 for (j = 0; j < bwidth; ++j)
705 mask |= bitrev[data[j]] << (j * 8);
706 __raw_writel(mask, fb_base + pos);
711 __raw_writel(0xffffffff, regs_base + TGA_PIXELMASK_REG);
714 unsigned long pos0 = pos;
715 const unsigned char *data0 = data;
716 unsigned long bincr = (is8bpp ? 8 : 8*4);
717 unsigned long bwidth;
719 /* Finally, handle the generic case of misaligned start.
720 Here we split the write into 16-bit spans. This allows
721 us to use only one pixel mask, instead of four as would
722 be required by writing 24-bit spans. */
724 pixelmask = 0xffff << shift;
725 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
728 bwidth = (width / 8) & -2;
729 for (i = 0; i < height; ++i) {
730 for (j = 0; j < bwidth; j += 2) {
732 mask |= bitrev[data[j+0]] << (0 * 8);
733 mask |= bitrev[data[j+1]] << (1 * 8);
735 __raw_writel(mask, fb_base + pos + j*bincr);
742 pixelmask = ((1ul << (width & 15)) - 1) << shift;
744 __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG);
747 pos = pos0 + bwidth*bincr;
748 data = data0 + bwidth;
749 bwidth = (width & 15) > 8;
751 for (i = 0; i < height; ++i) {
752 u32 mask = bitrev[data[0]];
754 mask |= bitrev[data[1]] << 8;
756 __raw_writel(mask, fb_base + pos);
762 __raw_writel(0xffffffff, regs_base + TGA_PIXELMASK_REG);
765 /* Disable opaque stipple mode. */
767 ? TGA_MODE_SBM_8BPP | TGA_MODE_SIMPLE
768 : TGA_MODE_SBM_24BPP | TGA_MODE_SIMPLE),
769 regs_base + TGA_MODE_REG);
773 * tgafb_fillrect - REQUIRED function. Can use generic routines if
774 * non acclerated hardware and packed pixel based.
775 * Draws a rectangle on the screen.
777 * @info: frame buffer structure that represents a single frame buffer
778 * @rect: structure defining the rectagle and operation.
781 tgafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
783 struct tga_par *par = (struct tga_par *) info->par;
784 int is8bpp = info->var.bits_per_pixel == 8;
785 u32 dx, dy, width, height, vxres, vyres, color;
786 unsigned long pos, align, line_length, i, j;
787 void __iomem *regs_base;
788 void __iomem *fb_base;
793 height = rect->height;
794 vxres = info->var.xres_virtual;
795 vyres = info->var.yres_virtual;
796 line_length = info->fix.line_length;
797 regs_base = par->tga_regs_base;
798 fb_base = par->tga_fb_base;
800 /* Crop the rectangle to the screen. */
801 if (dx > vxres || dy > vyres || !width || !height)
803 if (dx + width > vxres)
805 if (dy + height > vyres)
808 pos = dy * line_length + dx * (is8bpp ? 1 : 4);
810 /* ??? We could implement ROP_XOR with opaque fill mode
811 and a RasterOp setting of GXxor, but as far as I can
812 tell, this mode is not actually used in the kernel.
813 Thus I am ignoring it for now. */
814 if (rect->rop != ROP_COPY) {
815 cfb_fillrect(info, rect);
819 /* Expand the color value to fill 8 pixels. */
823 color |= color << 16;
824 __raw_writel(color, regs_base + TGA_BLOCK_COLOR0_REG);
825 __raw_writel(color, regs_base + TGA_BLOCK_COLOR1_REG);
828 color = ((u32 *)info->pseudo_palette)[color];
829 __raw_writel(color, regs_base + TGA_BLOCK_COLOR0_REG);
830 __raw_writel(color, regs_base + TGA_BLOCK_COLOR1_REG);
831 __raw_writel(color, regs_base + TGA_BLOCK_COLOR2_REG);
832 __raw_writel(color, regs_base + TGA_BLOCK_COLOR3_REG);
833 __raw_writel(color, regs_base + TGA_BLOCK_COLOR4_REG);
834 __raw_writel(color, regs_base + TGA_BLOCK_COLOR5_REG);
835 __raw_writel(color, regs_base + TGA_BLOCK_COLOR6_REG);
836 __raw_writel(color, regs_base + TGA_BLOCK_COLOR7_REG);
839 /* The DATA register holds the fill mask for block fill mode.
840 Since we're not stippling, this is all ones. */
841 __raw_writel(0xffffffff, regs_base + TGA_DATA_REG);
843 /* Enable block fill mode. */
845 ? TGA_MODE_SBM_8BPP | TGA_MODE_BLOCK_FILL
846 : TGA_MODE_SBM_24BPP | TGA_MODE_BLOCK_FILL),
847 regs_base + TGA_MODE_REG);
850 /* We can fill 2k pixels per operation. Notice blocks that fit
851 the width of the screen so that we can take advantage of this
852 and fill more than one line per write. */
853 if (width == line_length)
854 width *= height, height = 1;
856 /* The write into the frame buffer must be aligned to 4 bytes,
857 but we are allowed to encode the offset within the word in
858 the data word written. */
859 align = (pos & 3) << 16;
865 data = (width - 1) | align;
867 for (i = 0; i < height; ++i) {
868 __raw_writel(data, fb_base + pos);
872 unsigned long Bpp = (is8bpp ? 1 : 4);
873 unsigned long nwidth = width & -2048;
876 fdata = (2048 - 1) | align;
877 ldata = ((width & 2047) - 1) | align;
879 for (i = 0; i < height; ++i) {
880 for (j = 0; j < nwidth; j += 2048)
881 __raw_writel(fdata, fb_base + pos + j*Bpp);
883 __raw_writel(ldata, fb_base + pos + j*Bpp);
889 /* Disable block fill mode. */
891 ? TGA_MODE_SBM_8BPP | TGA_MODE_SIMPLE
892 : TGA_MODE_SBM_24BPP | TGA_MODE_SIMPLE),
893 regs_base + TGA_MODE_REG);
897 * tgafb_copyarea - REQUIRED function. Can use generic routines if
898 * non acclerated hardware and packed pixel based.
899 * Copies on area of the screen to another area.
901 * @info: frame buffer structure that represents a single frame buffer
902 * @area: structure defining the source and destination.
905 /* Handle the special case of copying entire lines, e.g. during scrolling.
906 We can avoid a lot of needless computation in this case. In the 8bpp
907 case we need to use the COPY64 registers instead of mask writes into
908 the frame buffer to achieve maximum performance. */
911 copyarea_line_8bpp(struct fb_info *info, u32 dy, u32 sy,
912 u32 height, u32 width)
914 struct tga_par *par = (struct tga_par *) info->par;
915 void __iomem *tga_regs = par->tga_regs_base;
916 unsigned long dpos, spos, i, n64;
918 /* Set up the MODE and PIXELSHIFT registers. */
919 __raw_writel(TGA_MODE_SBM_8BPP | TGA_MODE_COPY, tga_regs+TGA_MODE_REG);
920 __raw_writel(0, tga_regs+TGA_PIXELSHIFT_REG);
923 n64 = (height * width) / 64;
926 spos = (sy + height) * width;
927 dpos = (dy + height) * width;
929 for (i = 0; i < n64; ++i) {
932 __raw_writel(spos, tga_regs+TGA_COPY64_SRC);
934 __raw_writel(dpos, tga_regs+TGA_COPY64_DST);
941 for (i = 0; i < n64; ++i) {
942 __raw_writel(spos, tga_regs+TGA_COPY64_SRC);
944 __raw_writel(dpos, tga_regs+TGA_COPY64_DST);
951 /* Reset the MODE register to normal. */
952 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG);
956 copyarea_line_32bpp(struct fb_info *info, u32 dy, u32 sy,
957 u32 height, u32 width)
959 struct tga_par *par = (struct tga_par *) info->par;
960 void __iomem *tga_regs = par->tga_regs_base;
961 void __iomem *tga_fb = par->tga_fb_base;
964 unsigned long i, n16;
966 /* Set up the MODE and PIXELSHIFT registers. */
967 __raw_writel(TGA_MODE_SBM_24BPP | TGA_MODE_COPY, tga_regs+TGA_MODE_REG);
968 __raw_writel(0, tga_regs+TGA_PIXELSHIFT_REG);
971 n16 = (height * width) / 16;
974 src = tga_fb + (sy + height) * width * 4;
975 dst = tga_fb + (dy + height) * width * 4;
977 for (i = 0; i < n16; ++i) {
980 __raw_writel(0xffff, src);
982 __raw_writel(0xffff, dst);
986 src = tga_fb + sy * width * 4;
987 dst = tga_fb + dy * width * 4;
989 for (i = 0; i < n16; ++i) {
990 __raw_writel(0xffff, src);
992 __raw_writel(0xffff, dst);
999 /* Reset the MODE register to normal. */
1000 __raw_writel(TGA_MODE_SBM_24BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG);
1003 /* The general case of forward copy in 8bpp mode. */
1005 copyarea_foreward_8bpp(struct fb_info *info, u32 dx, u32 dy, u32 sx, u32 sy,
1006 u32 height, u32 width, u32 line_length)
1008 struct tga_par *par = (struct tga_par *) info->par;
1009 unsigned long i, copied, left;
1010 unsigned long dpos, spos, dalign, salign, yincr;
1011 u32 smask_first, dmask_first, dmask_last;
1012 int pixel_shift, need_prime, need_second;
1013 unsigned long n64, n32, xincr_first;
1014 void __iomem *tga_regs;
1015 void __iomem *tga_fb;
1017 yincr = line_length;
1024 /* Compute the offsets and alignments in the frame buffer.
1025 More than anything else, these control how we do copies. */
1026 dpos = dy * line_length + dx;
1027 spos = sy * line_length + sx;
1033 /* Compute the value for the PIXELSHIFT register. This controls
1034 both non-co-aligned source and destination and copy direction. */
1035 if (dalign >= salign)
1036 pixel_shift = dalign - salign;
1038 pixel_shift = 8 - (salign - dalign);
1040 /* Figure out if we need an additional priming step for the
1041 residue register. */
1042 need_prime = (salign > dalign);
1046 /* Begin by copying the leading unaligned destination. Copy enough
1047 to make the next destination address 32-byte aligned. */
1048 copied = 32 - (dalign + (dpos & 31));
1051 xincr_first = (copied + 7) & -8;
1052 smask_first = dmask_first = (1ul << copied) - 1;
1053 smask_first <<= salign;
1054 dmask_first <<= dalign + need_prime*8;
1055 if (need_prime && copied > 24)
1057 left = width - copied;
1059 /* Care for small copies. */
1060 if (copied > width) {
1062 t = (1ul << width) - 1;
1063 t <<= dalign + need_prime*8;
1068 /* Attempt to use 64-byte copies. This is only possible if the
1069 source and destination are co-aligned at 64 bytes. */
1070 n64 = need_second = 0;
1071 if ((dpos & 63) == (spos & 63)
1072 && (height == 1 || line_length % 64 == 0)) {
1073 /* We may need a 32-byte copy to ensure 64 byte alignment. */
1074 need_second = (dpos + xincr_first) & 63;
1075 if ((need_second & 32) != need_second)
1076 printk(KERN_ERR "tgafb: need_second wrong\n");
1077 if (left >= need_second + 64) {
1078 left -= need_second;
1085 /* Copy trailing full 32-byte sections. This will be the main
1086 loop if the 64 byte loop can't be used. */
1090 /* Copy the trailing unaligned destination. */
1091 dmask_last = (1ul << left) - 1;
1093 tga_regs = par->tga_regs_base;
1094 tga_fb = par->tga_fb_base;
1096 /* Set up the MODE and PIXELSHIFT registers. */
1097 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_COPY, tga_regs+TGA_MODE_REG);
1098 __raw_writel(pixel_shift, tga_regs+TGA_PIXELSHIFT_REG);
1101 for (i = 0; i < height; ++i) {
1106 sfb = tga_fb + spos;
1107 dfb = tga_fb + dpos;
1109 __raw_writel(smask_first, sfb);
1111 __raw_writel(dmask_first, dfb);
1118 __raw_writel(0xffffffff, sfb);
1120 __raw_writel(0xffffffff, dfb);
1126 if (n64 && (((unsigned long)sfb | (unsigned long)dfb) & 63))
1128 "tgafb: misaligned copy64 (s:%p, d:%p)\n",
1131 for (j = 0; j < n64; ++j) {
1132 __raw_writel(sfb - tga_fb, tga_regs+TGA_COPY64_SRC);
1134 __raw_writel(dfb - tga_fb, tga_regs+TGA_COPY64_DST);
1140 for (j = 0; j < n32; ++j) {
1141 __raw_writel(0xffffffff, sfb);
1143 __raw_writel(0xffffffff, dfb);
1150 __raw_writel(0xffffffff, sfb);
1152 __raw_writel(dmask_last, dfb);
1160 /* Reset the MODE register to normal. */
1161 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG);
1164 /* The (almost) general case of backward copy in 8bpp mode. */
1166 copyarea_backward_8bpp(struct fb_info *info, u32 dx, u32 dy, u32 sx, u32 sy,
1167 u32 height, u32 width, u32 line_length,
1168 const struct fb_copyarea *area)
1170 struct tga_par *par = (struct tga_par *) info->par;
1171 unsigned long i, left, yincr;
1172 unsigned long depos, sepos, dealign, sealign;
1173 u32 mask_first, mask_last;
1175 void __iomem *tga_regs;
1176 void __iomem *tga_fb;
1178 yincr = line_length;
1185 /* Compute the offsets and alignments in the frame buffer.
1186 More than anything else, these control how we do copies. */
1187 depos = dy * line_length + dx + width;
1188 sepos = sy * line_length + sx + width;
1189 dealign = depos & 7;
1190 sealign = sepos & 7;
1192 /* ??? The documentation appears to be incorrect (or very
1193 misleading) wrt how pixel shifting works in backward copy
1194 mode, i.e. when PIXELSHIFT is negative. I give up for now.
1195 Do handle the common case of co-aligned backward copies,
1196 but frob everything else back on generic code. */
1197 if (dealign != sealign) {
1198 cfb_copyarea(info, area);
1202 /* We begin the copy with the trailing pixels of the
1203 unaligned destination. */
1204 mask_first = (1ul << dealign) - 1;
1205 left = width - dealign;
1207 /* Care for small copies. */
1208 if (dealign > width) {
1209 mask_first ^= (1ul << (dealign - width)) - 1;
1213 /* Next copy full words at a time. */
1217 /* Finally copy the unaligned head of the span. */
1218 mask_last = -1 << (32 - left);
1220 tga_regs = par->tga_regs_base;
1221 tga_fb = par->tga_fb_base;
1223 /* Set up the MODE and PIXELSHIFT registers. */
1224 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_COPY, tga_regs+TGA_MODE_REG);
1225 __raw_writel(0, tga_regs+TGA_PIXELSHIFT_REG);
1228 for (i = 0; i < height; ++i) {
1233 sfb = tga_fb + sepos;
1234 dfb = tga_fb + depos;
1236 __raw_writel(mask_first, sfb);
1238 __raw_writel(mask_first, dfb);
1242 for (j = 0; j < n32; ++j) {
1245 __raw_writel(0xffffffff, sfb);
1247 __raw_writel(0xffffffff, dfb);
1254 __raw_writel(mask_last, sfb);
1256 __raw_writel(mask_last, dfb);
1264 /* Reset the MODE register to normal. */
1265 __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG);
1269 tgafb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
1271 unsigned long dx, dy, width, height, sx, sy, vxres, vyres;
1272 unsigned long line_length, bpp;
1276 width = area->width;
1277 height = area->height;
1280 vxres = info->var.xres_virtual;
1281 vyres = info->var.yres_virtual;
1282 line_length = info->fix.line_length;
1284 /* The top left corners must be in the virtual screen. */
1285 if (dx > vxres || sx > vxres || dy > vyres || sy > vyres)
1288 /* Clip the destination. */
1289 if (dx + width > vxres)
1291 if (dy + height > vyres)
1292 height = vyres - dy;
1294 /* The source must be completely inside the virtual screen. */
1295 if (sx + width > vxres || sy + height > vyres)
1298 bpp = info->var.bits_per_pixel;
1300 /* Detect copies of the entire line. */
1301 if (width * (bpp >> 3) == line_length) {
1303 copyarea_line_8bpp(info, dy, sy, height, width);
1305 copyarea_line_32bpp(info, dy, sy, height, width);
1308 /* ??? The documentation is unclear to me exactly how the pixelshift
1309 register works in 32bpp mode. Since I don't have hardware to test,
1310 give up for now and fall back on the generic routines. */
1312 cfb_copyarea(info, area);
1314 /* Detect overlapping source and destination that requires
1316 else if (dy == sy && dx > sx && dx < sx + width)
1317 copyarea_backward_8bpp(info, dx, dy, sx, sy, height,
1318 width, line_length, area);
1320 copyarea_foreward_8bpp(info, dx, dy, sx, sy, height,
1321 width, line_length);
1330 tgafb_init_fix(struct fb_info *info)
1332 struct tga_par *par = (struct tga_par *)info->par;
1333 u8 tga_type = par->tga_type;
1334 const char *tga_type_name;
1337 case TGA_TYPE_8PLANE:
1338 tga_type_name = "Digital ZLXp-E1";
1340 case TGA_TYPE_24PLANE:
1341 tga_type_name = "Digital ZLXp-E2";
1343 case TGA_TYPE_24PLUSZ:
1344 tga_type_name = "Digital ZLXp-E3";
1347 tga_type_name = "Unknown";
1351 strlcpy(info->fix.id, tga_type_name, sizeof(info->fix.id));
1353 info->fix.type = FB_TYPE_PACKED_PIXELS;
1354 info->fix.type_aux = 0;
1355 info->fix.visual = (tga_type == TGA_TYPE_8PLANE
1356 ? FB_VISUAL_PSEUDOCOLOR
1357 : FB_VISUAL_TRUECOLOR);
1359 info->fix.line_length = par->xres * (par->bits_per_pixel >> 3);
1360 info->fix.smem_start = (size_t) par->tga_fb_base;
1361 info->fix.smem_len = info->fix.line_length * par->yres;
1362 info->fix.mmio_start = (size_t) par->tga_regs_base;
1363 info->fix.mmio_len = 512;
1365 info->fix.xpanstep = 0;
1366 info->fix.ypanstep = 0;
1367 info->fix.ywrapstep = 0;
1369 info->fix.accel = FB_ACCEL_DEC_TGA;
1372 static __devinit int
1373 tgafb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
1375 static unsigned int const fb_offset_presets[4] = {
1376 TGA_8PLANE_FB_OFFSET,
1377 TGA_24PLANE_FB_OFFSET,
1379 TGA_24PLUSZ_FB_OFFSET
1383 struct fb_info info;
1385 u32 pseudo_palette[16];
1388 void __iomem *mem_base;
1389 unsigned long bar0_start, bar0_len;
1393 /* Enable device in PCI config. */
1394 if (pci_enable_device(pdev)) {
1395 printk(KERN_ERR "tgafb: Cannot enable PCI device\n");
1399 /* Allocate the fb and par structures. */
1400 all = kmalloc(sizeof(*all), GFP_KERNEL);
1402 printk(KERN_ERR "tgafb: Cannot allocate memory\n");
1405 memset(all, 0, sizeof(*all));
1406 pci_set_drvdata(pdev, all);
1408 /* Request the mem regions. */
1409 bar0_start = pci_resource_start(pdev, 0);
1410 bar0_len = pci_resource_len(pdev, 0);
1412 if (!request_mem_region (bar0_start, bar0_len, "tgafb")) {
1413 printk(KERN_ERR "tgafb: cannot reserve FB region\n");
1417 /* Map the framebuffer. */
1418 mem_base = ioremap(bar0_start, bar0_len);
1420 printk(KERN_ERR "tgafb: Cannot map MMIO\n");
1424 /* Grab info about the card. */
1425 tga_type = (readl(mem_base) >> 12) & 0x0f;
1426 all->par.pdev = pdev;
1427 all->par.tga_mem_base = mem_base;
1428 all->par.tga_fb_base = mem_base + fb_offset_presets[tga_type];
1429 all->par.tga_regs_base = mem_base + TGA_REGS_OFFSET;
1430 all->par.tga_type = tga_type;
1431 pci_read_config_byte(pdev, PCI_REVISION_ID, &all->par.tga_chip_rev);
1433 /* Setup framebuffer. */
1434 all->info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
1435 FBINFO_HWACCEL_IMAGEBLIT | FBINFO_HWACCEL_FILLRECT;
1436 all->info.fbops = &tgafb_ops;
1437 all->info.screen_base = all->par.tga_fb_base;
1438 all->info.par = &all->par;
1439 all->info.pseudo_palette = all->pseudo_palette;
1441 /* This should give a reasonable default video mode. */
1443 ret = fb_find_mode(&all->info.var, &all->info, mode_option,
1445 tga_type == TGA_TYPE_8PLANE ? 8 : 32);
1446 if (ret == 0 || ret == 4) {
1447 printk(KERN_ERR "tgafb: Could not find valid video mode\n");
1452 if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
1453 printk(KERN_ERR "tgafb: Could not allocate color map\n");
1458 tgafb_set_par(&all->info);
1459 tgafb_init_fix(&all->info);
1461 all->info.device = &pdev->dev;
1462 if (register_framebuffer(&all->info) < 0) {
1463 printk(KERN_ERR "tgafb: Could not register framebuffer\n");
1468 printk(KERN_INFO "tgafb: DC21030 [TGA] detected, rev=0x%02x\n",
1469 all->par.tga_chip_rev);
1470 printk(KERN_INFO "tgafb: at PCI bus %d, device %d, function %d\n",
1471 pdev->bus->number, PCI_SLOT(pdev->devfn),
1472 PCI_FUNC(pdev->devfn));
1473 printk(KERN_INFO "fb%d: %s frame buffer device at 0x%lx\n",
1474 all->info.node, all->info.fix.id, bar0_start);
1479 release_mem_region(bar0_start, bar0_len);
1486 tgafb_pci_unregister(struct pci_dev *pdev)
1488 struct fb_info *info = pci_get_drvdata(pdev);
1489 struct tga_par *par = info->par;
1493 unregister_framebuffer(info);
1494 iounmap(par->tga_mem_base);
1495 release_mem_region(pci_resource_start(pdev, 0),
1496 pci_resource_len(pdev, 0));
1504 pci_unregister_driver(&tgafb_driver);
1510 tgafb_setup(char *arg)
1515 while ((this_opt = strsep(&arg, ","))) {
1518 if (!strncmp(this_opt, "mode:", 5))
1519 mode_option = this_opt+5;
1522 "tgafb: unknown parameter %s\n",
1529 #endif /* !MODULE */
1535 char *option = NULL;
1537 if (fb_get_options("tgafb", &option))
1539 tgafb_setup(option);
1541 return pci_register_driver(&tgafb_driver);
1548 module_init(tgafb_init);
1551 module_exit(tgafb_exit);
1554 MODULE_DESCRIPTION("framebuffer driver for TGA chipset");
1555 MODULE_LICENSE("GPL");