2 * linux/drivers/video/riva/fbdev.c - nVidia RIVA 128/TNT/TNT2 fb driver
4 * Maintained by Ani Joshi <ajoshi@shell.unixbox.com>
6 * Copyright 1999-2000 Jeff Garzik
10 * Ani Joshi: Lots of debugging and cleanup work, really helped
11 * get the driver going
13 * Ferenc Bakonyi: Bug fixes, cleanup, modularization
15 * Jindrich Makovicka: Accel code help, hw cursor, mtrr
17 * Paul Richards: Bug fixes, updates
19 * Initial template from skeletonfb.c, created 28 Dec 1997 by Geert Uytterhoeven
20 * Includes riva_hw.c from nVidia, see copyright below.
21 * KGI code provided the basis for state storage, init, and mode switching.
23 * This file is subject to the terms and conditions of the GNU General Public
24 * License. See the file COPYING in the main directory of this archive
27 * Known bugs and issues:
28 * restoring text mode fails
29 * doublescan modes are broken
32 #include <linux/module.h>
33 #include <linux/kernel.h>
34 #include <linux/errno.h>
35 #include <linux/string.h>
37 #include <linux/slab.h>
38 #include <linux/delay.h>
40 #include <linux/init.h>
41 #include <linux/pci.h>
42 #include <linux/backlight.h>
43 #include <linux/bitrev.h>
49 #include <asm/pci-bridge.h>
51 #ifdef CONFIG_PMAC_BACKLIGHT
52 #include <asm/machdep.h>
53 #include <asm/backlight.h>
59 #ifndef CONFIG_PCI /* sanity check */
60 #error This driver requires PCI support.
63 /* version number of this driver */
64 #define RIVAFB_VERSION "0.9.5b"
66 /* ------------------------------------------------------------------------- *
68 * various helpful macros and constants
70 * ------------------------------------------------------------------------- */
71 #ifdef CONFIG_FB_RIVA_DEBUG
72 #define NVTRACE printk
74 #define NVTRACE if(0) printk
77 #define NVTRACE_ENTER(...) NVTRACE("%s START\n", __FUNCTION__)
78 #define NVTRACE_LEAVE(...) NVTRACE("%s END\n", __FUNCTION__)
80 #ifdef CONFIG_FB_RIVA_DEBUG
81 #define assert(expr) \
83 printk( "Assertion failed! %s,%s,%s,line=%d\n",\
84 #expr,__FILE__,__FUNCTION__,__LINE__); \
91 #define PFX "rivafb: "
93 /* macro that allows you to set overflow bits */
94 #define SetBitField(value,from,to) SetBF(to,GetBF(value,from))
95 #define SetBit(n) (1<<(n))
96 #define Set8Bits(value) ((value)&0xff)
98 /* HW cursor parameters */
101 /* ------------------------------------------------------------------------- *
105 * ------------------------------------------------------------------------- */
107 static int rivafb_blank(int blank, struct fb_info *info);
109 /* ------------------------------------------------------------------------- *
111 * card identification
113 * ------------------------------------------------------------------------- */
115 static struct pci_device_id rivafb_pci_tbl[] = {
116 { PCI_VENDOR_ID_NVIDIA_SGS, PCI_DEVICE_ID_NVIDIA_SGS_RIVA128,
117 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
118 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT,
119 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
120 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT2,
121 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
122 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UTNT2,
123 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
124 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_VTNT2,
125 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
126 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UVTNT2,
127 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
128 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_ITNT2,
129 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
130 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_SDR,
131 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
132 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_DDR,
133 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
134 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO,
135 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
136 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX,
137 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
138 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX2,
139 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
140 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GO,
141 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
142 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_MXR,
143 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
144 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS,
145 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
146 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS2,
147 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
148 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_ULTRA,
149 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
150 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_PRO,
151 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
152 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_460,
153 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
154 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_440,
155 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
156 // NF2/IGP version, GeForce 4 MX, NV18
157 { PCI_VENDOR_ID_NVIDIA, 0x01f0,
158 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
159 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_420,
160 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
161 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO,
162 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
163 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO,
164 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
165 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO_M32,
166 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
167 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500XGL,
168 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
169 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO_M64,
170 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
171 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_200,
172 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
173 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_550XGL,
174 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
175 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500_GOGL,
176 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
177 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_IGEFORCE2,
178 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
179 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3,
180 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
181 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_1,
182 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
183 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_2,
184 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
185 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_DDC,
186 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
187 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4600,
188 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
189 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4400,
190 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
191 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4200,
192 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
193 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_900XGL,
194 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
195 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_750XGL,
196 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
197 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_700XGL,
198 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
199 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO_5200,
200 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
201 { 0, } /* terminate list */
203 MODULE_DEVICE_TABLE(pci, rivafb_pci_tbl);
205 /* ------------------------------------------------------------------------- *
209 * ------------------------------------------------------------------------- */
211 /* command line data, set in rivafb_setup() */
212 static int flatpanel __devinitdata = -1; /* Autodetect later */
213 static int forceCRTC __devinitdata = -1;
214 static int noaccel __devinitdata = 0;
216 static int nomtrr __devinitdata = 0;
218 #ifdef CONFIG_PMAC_BACKLIGHT
219 static int backlight __devinitdata = 1;
221 static int backlight __devinitdata = 0;
224 static char *mode_option __devinitdata = NULL;
225 static int strictmode = 0;
227 static struct fb_fix_screeninfo __devinitdata rivafb_fix = {
228 .type = FB_TYPE_PACKED_PIXELS,
233 static struct fb_var_screeninfo __devinitdata rivafb_default_var = {
243 .activate = FB_ACTIVATE_NOW,
253 .vmode = FB_VMODE_NONINTERLACED
257 static const struct riva_regs reg_template = {
258 {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* ATTR */
259 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
260 0x41, 0x01, 0x0F, 0x00, 0x00},
261 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* CRT */
262 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00,
263 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, /* 0x10 */
264 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
265 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20 */
266 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
267 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30 */
268 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
271 {0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, /* GRA */
273 {0x03, 0x01, 0x0F, 0x00, 0x0E}, /* SEQ */
280 #ifdef CONFIG_FB_RIVA_BACKLIGHT
281 /* We do not have any information about which values are allowed, thus
282 * we used safe values.
284 #define MIN_LEVEL 0x158
285 #define MAX_LEVEL 0x534
286 #define LEVEL_STEP ((MAX_LEVEL - MIN_LEVEL) / FB_BACKLIGHT_MAX)
288 static int riva_bl_get_level_brightness(struct riva_par *par,
291 struct fb_info *info = pci_get_drvdata(par->pdev);
294 /* Get and convert the value */
295 /* No locking on bl_curve since accessing a single value */
296 nlevel = MIN_LEVEL + info->bl_curve[level] * LEVEL_STEP;
300 else if (nlevel < MIN_LEVEL)
302 else if (nlevel > MAX_LEVEL)
308 static int riva_bl_update_status(struct backlight_device *bd)
310 struct riva_par *par = class_get_devdata(&bd->class_dev);
311 U032 tmp_pcrt, tmp_pmc;
314 if (bd->props.power != FB_BLANK_UNBLANK ||
315 bd->props.fb_blank != FB_BLANK_UNBLANK)
318 level = bd->props.brightness;
320 tmp_pmc = par->riva.PMC[0x10F0/4] & 0x0000FFFF;
321 tmp_pcrt = par->riva.PCRTC0[0x081C/4] & 0xFFFFFFFC;
324 tmp_pmc |= (1 << 31); /* backlight bit */
325 tmp_pmc |= riva_bl_get_level_brightness(par, level) << 16; /* level */
327 par->riva.PCRTC0[0x081C/4] = tmp_pcrt;
328 par->riva.PMC[0x10F0/4] = tmp_pmc;
333 static int riva_bl_get_brightness(struct backlight_device *bd)
335 return bd->props.brightness;
338 static struct backlight_ops riva_bl_ops = {
339 .get_brightness = riva_bl_get_brightness,
340 .update_status = riva_bl_update_status,
343 static void riva_bl_init(struct riva_par *par)
345 struct fb_info *info = pci_get_drvdata(par->pdev);
346 struct backlight_device *bd;
352 #ifdef CONFIG_PMAC_BACKLIGHT
353 if (!machine_is(powermac) ||
354 !pmac_has_backlight_type("mnca"))
358 snprintf(name, sizeof(name), "rivabl%d", info->node);
360 bd = backlight_device_register(name, info->dev, par, &riva_bl_ops);
363 printk(KERN_WARNING "riva: Backlight registration failed\n");
368 fb_bl_default_curve(info, 0,
369 MIN_LEVEL * FB_BACKLIGHT_MAX / MAX_LEVEL,
372 bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
373 bd->props.brightness = bd->props.max_brightness;
374 bd->props.power = FB_BLANK_UNBLANK;
375 backlight_update_status(bd);
377 printk("riva: Backlight initialized (%s)\n", name);
385 static void riva_bl_exit(struct fb_info *info)
387 struct backlight_device *bd = info->bl_dev;
389 backlight_device_unregister(bd);
390 printk("riva: Backlight unloaded\n");
393 static inline void riva_bl_init(struct riva_par *par) {}
394 static inline void riva_bl_exit(struct fb_info *info) {}
395 #endif /* CONFIG_FB_RIVA_BACKLIGHT */
397 /* ------------------------------------------------------------------------- *
401 * ------------------------------------------------------------------------- */
403 static inline void CRTCout(struct riva_par *par, unsigned char index,
406 VGA_WR08(par->riva.PCIO, 0x3d4, index);
407 VGA_WR08(par->riva.PCIO, 0x3d5, val);
410 static inline unsigned char CRTCin(struct riva_par *par,
413 VGA_WR08(par->riva.PCIO, 0x3d4, index);
414 return (VGA_RD08(par->riva.PCIO, 0x3d5));
417 static inline void GRAout(struct riva_par *par, unsigned char index,
420 VGA_WR08(par->riva.PVIO, 0x3ce, index);
421 VGA_WR08(par->riva.PVIO, 0x3cf, val);
424 static inline unsigned char GRAin(struct riva_par *par,
427 VGA_WR08(par->riva.PVIO, 0x3ce, index);
428 return (VGA_RD08(par->riva.PVIO, 0x3cf));
431 static inline void SEQout(struct riva_par *par, unsigned char index,
434 VGA_WR08(par->riva.PVIO, 0x3c4, index);
435 VGA_WR08(par->riva.PVIO, 0x3c5, val);
438 static inline unsigned char SEQin(struct riva_par *par,
441 VGA_WR08(par->riva.PVIO, 0x3c4, index);
442 return (VGA_RD08(par->riva.PVIO, 0x3c5));
445 static inline void ATTRout(struct riva_par *par, unsigned char index,
448 VGA_WR08(par->riva.PCIO, 0x3c0, index);
449 VGA_WR08(par->riva.PCIO, 0x3c0, val);
452 static inline unsigned char ATTRin(struct riva_par *par,
455 VGA_WR08(par->riva.PCIO, 0x3c0, index);
456 return (VGA_RD08(par->riva.PCIO, 0x3c1));
459 static inline void MISCout(struct riva_par *par, unsigned char val)
461 VGA_WR08(par->riva.PVIO, 0x3c2, val);
464 static inline unsigned char MISCin(struct riva_par *par)
466 return (VGA_RD08(par->riva.PVIO, 0x3cc));
469 static inline void reverse_order(u32 *l)
472 a[0] = bitrev8(a[0]);
473 a[1] = bitrev8(a[1]);
474 a[2] = bitrev8(a[2]);
475 a[3] = bitrev8(a[3]);
478 /* ------------------------------------------------------------------------- *
482 * ------------------------------------------------------------------------- */
485 * rivafb_load_cursor_image - load cursor image to hardware
486 * @data: address to monochrome bitmap (1 = foreground color, 0 = background)
487 * @par: pointer to private data
488 * @w: width of cursor image in pixels
489 * @h: height of cursor image in scanlines
490 * @bg: background color (ARGB1555) - alpha bit determines opacity
491 * @fg: foreground color (ARGB1555)
494 * Loads cursor image based on a monochrome source and mask bitmap. The
495 * image bits determines the color of the pixel, 0 for background, 1 for
496 * foreground. Only the affected region (as determined by @w and @h
497 * parameters) will be updated.
502 static void rivafb_load_cursor_image(struct riva_par *par, u8 *data8,
503 u16 bg, u16 fg, u32 w, u32 h)
507 u32 *data = (u32 *)data8;
508 bg = le16_to_cpu(bg);
509 fg = le16_to_cpu(fg);
513 for (i = 0; i < h; i++) {
517 for (j = 0; j < w/2; j++) {
519 #if defined (__BIG_ENDIAN)
520 tmp = (b & (1 << 31)) ? fg << 16 : bg << 16;
522 tmp |= (b & (1 << 31)) ? fg : bg;
525 tmp = (b & 1) ? fg : bg;
527 tmp |= (b & 1) ? fg << 16 : bg << 16;
530 writel(tmp, &par->riva.CURSOR[k++]);
532 k += (MAX_CURS - w)/2;
536 /* ------------------------------------------------------------------------- *
538 * general utility functions
540 * ------------------------------------------------------------------------- */
543 * riva_wclut - set CLUT entry
544 * @chip: pointer to RIVA_HW_INST object
545 * @regnum: register number
546 * @red: red component
547 * @green: green component
548 * @blue: blue component
551 * Sets color register @regnum.
556 static void riva_wclut(RIVA_HW_INST *chip,
557 unsigned char regnum, unsigned char red,
558 unsigned char green, unsigned char blue)
560 VGA_WR08(chip->PDIO, 0x3c8, regnum);
561 VGA_WR08(chip->PDIO, 0x3c9, red);
562 VGA_WR08(chip->PDIO, 0x3c9, green);
563 VGA_WR08(chip->PDIO, 0x3c9, blue);
567 * riva_rclut - read fromCLUT register
568 * @chip: pointer to RIVA_HW_INST object
569 * @regnum: register number
570 * @red: red component
571 * @green: green component
572 * @blue: blue component
575 * Reads red, green, and blue from color register @regnum.
580 static void riva_rclut(RIVA_HW_INST *chip,
581 unsigned char regnum, unsigned char *red,
582 unsigned char *green, unsigned char *blue)
585 VGA_WR08(chip->PDIO, 0x3c7, regnum);
586 *red = VGA_RD08(chip->PDIO, 0x3c9);
587 *green = VGA_RD08(chip->PDIO, 0x3c9);
588 *blue = VGA_RD08(chip->PDIO, 0x3c9);
592 * riva_save_state - saves current chip state
593 * @par: pointer to riva_par object containing info for current riva board
594 * @regs: pointer to riva_regs object
597 * Saves current chip state to @regs.
603 static void riva_save_state(struct riva_par *par, struct riva_regs *regs)
608 par->riva.LockUnlock(&par->riva, 0);
610 par->riva.UnloadStateExt(&par->riva, ®s->ext);
612 regs->misc_output = MISCin(par);
614 for (i = 0; i < NUM_CRT_REGS; i++)
615 regs->crtc[i] = CRTCin(par, i);
617 for (i = 0; i < NUM_ATC_REGS; i++)
618 regs->attr[i] = ATTRin(par, i);
620 for (i = 0; i < NUM_GRC_REGS; i++)
621 regs->gra[i] = GRAin(par, i);
623 for (i = 0; i < NUM_SEQ_REGS; i++)
624 regs->seq[i] = SEQin(par, i);
629 * riva_load_state - loads current chip state
630 * @par: pointer to riva_par object containing info for current riva board
631 * @regs: pointer to riva_regs object
634 * Loads chip state from @regs.
637 * riva_load_video_mode()
642 static void riva_load_state(struct riva_par *par, struct riva_regs *regs)
644 RIVA_HW_STATE *state = ®s->ext;
648 CRTCout(par, 0x11, 0x00);
650 par->riva.LockUnlock(&par->riva, 0);
652 par->riva.LoadStateExt(&par->riva, state);
654 MISCout(par, regs->misc_output);
656 for (i = 0; i < NUM_CRT_REGS; i++) {
662 CRTCout(par, i, regs->crtc[i]);
666 for (i = 0; i < NUM_ATC_REGS; i++)
667 ATTRout(par, i, regs->attr[i]);
669 for (i = 0; i < NUM_GRC_REGS; i++)
670 GRAout(par, i, regs->gra[i]);
672 for (i = 0; i < NUM_SEQ_REGS; i++)
673 SEQout(par, i, regs->seq[i]);
678 * riva_load_video_mode - calculate timings
679 * @info: pointer to fb_info object containing info for current riva board
682 * Calculate some timings and then send em off to riva_load_state().
687 static int riva_load_video_mode(struct fb_info *info)
689 int bpp, width, hDisplaySize, hDisplay, hStart,
690 hEnd, hTotal, height, vDisplay, vStart, vEnd, vTotal, dotClock;
691 int hBlankStart, hBlankEnd, vBlankStart, vBlankEnd;
693 struct riva_par *par = info->par;
694 struct riva_regs newmode;
697 /* time to calculate */
698 rivafb_blank(FB_BLANK_NORMAL, info);
700 bpp = info->var.bits_per_pixel;
701 if (bpp == 16 && info->var.green.length == 5)
703 width = info->var.xres_virtual;
704 hDisplaySize = info->var.xres;
705 hDisplay = (hDisplaySize / 8) - 1;
706 hStart = (hDisplaySize + info->var.right_margin) / 8 - 1;
707 hEnd = (hDisplaySize + info->var.right_margin +
708 info->var.hsync_len) / 8 - 1;
709 hTotal = (hDisplaySize + info->var.right_margin +
710 info->var.hsync_len + info->var.left_margin) / 8 - 5;
711 hBlankStart = hDisplay;
712 hBlankEnd = hTotal + 4;
714 height = info->var.yres_virtual;
715 vDisplay = info->var.yres - 1;
716 vStart = info->var.yres + info->var.lower_margin - 1;
717 vEnd = info->var.yres + info->var.lower_margin +
718 info->var.vsync_len - 1;
719 vTotal = info->var.yres + info->var.lower_margin +
720 info->var.vsync_len + info->var.upper_margin + 2;
721 vBlankStart = vDisplay;
722 vBlankEnd = vTotal + 1;
723 dotClock = 1000000000 / info->var.pixclock;
725 memcpy(&newmode, ®_template, sizeof(struct riva_regs));
727 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED)
730 if (par->FlatPanel) {
733 vBlankStart = vStart;
736 hBlankEnd = hTotal + 4;
739 newmode.crtc[0x0] = Set8Bits (hTotal);
740 newmode.crtc[0x1] = Set8Bits (hDisplay);
741 newmode.crtc[0x2] = Set8Bits (hBlankStart);
742 newmode.crtc[0x3] = SetBitField (hBlankEnd, 4: 0, 4:0) | SetBit (7);
743 newmode.crtc[0x4] = Set8Bits (hStart);
744 newmode.crtc[0x5] = SetBitField (hBlankEnd, 5: 5, 7:7)
745 | SetBitField (hEnd, 4: 0, 4:0);
746 newmode.crtc[0x6] = SetBitField (vTotal, 7: 0, 7:0);
747 newmode.crtc[0x7] = SetBitField (vTotal, 8: 8, 0:0)
748 | SetBitField (vDisplay, 8: 8, 1:1)
749 | SetBitField (vStart, 8: 8, 2:2)
750 | SetBitField (vBlankStart, 8: 8, 3:3)
752 | SetBitField (vTotal, 9: 9, 5:5)
753 | SetBitField (vDisplay, 9: 9, 6:6)
754 | SetBitField (vStart, 9: 9, 7:7);
755 newmode.crtc[0x9] = SetBitField (vBlankStart, 9: 9, 5:5)
757 newmode.crtc[0x10] = Set8Bits (vStart);
758 newmode.crtc[0x11] = SetBitField (vEnd, 3: 0, 3:0)
760 newmode.crtc[0x12] = Set8Bits (vDisplay);
761 newmode.crtc[0x13] = (width / 8) * ((bpp + 1) / 8);
762 newmode.crtc[0x15] = Set8Bits (vBlankStart);
763 newmode.crtc[0x16] = Set8Bits (vBlankEnd);
765 newmode.ext.screen = SetBitField(hBlankEnd,6:6,4:4)
766 | SetBitField(vBlankStart,10:10,3:3)
767 | SetBitField(vStart,10:10,2:2)
768 | SetBitField(vDisplay,10:10,1:1)
769 | SetBitField(vTotal,10:10,0:0);
770 newmode.ext.horiz = SetBitField(hTotal,8:8,0:0)
771 | SetBitField(hDisplay,8:8,1:1)
772 | SetBitField(hBlankStart,8:8,2:2)
773 | SetBitField(hStart,8:8,3:3);
774 newmode.ext.extra = SetBitField(vTotal,11:11,0:0)
775 | SetBitField(vDisplay,11:11,2:2)
776 | SetBitField(vStart,11:11,4:4)
777 | SetBitField(vBlankStart,11:11,6:6);
779 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
780 int tmp = (hTotal >> 1) & ~1;
781 newmode.ext.interlace = Set8Bits(tmp);
782 newmode.ext.horiz |= SetBitField(tmp, 8:8,4:4);
784 newmode.ext.interlace = 0xff; /* interlace off */
786 if (par->riva.Architecture >= NV_ARCH_10)
787 par->riva.CURSOR = (U032 __iomem *)(info->screen_base + par->riva.CursorStart);
789 if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
790 newmode.misc_output &= ~0x40;
792 newmode.misc_output |= 0x40;
793 if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
794 newmode.misc_output &= ~0x80;
796 newmode.misc_output |= 0x80;
798 rc = CalcStateExt(&par->riva, &newmode.ext, bpp, width,
799 hDisplaySize, height, dotClock);
803 newmode.ext.scale = NV_RD32(par->riva.PRAMDAC, 0x00000848) &
805 if (par->FlatPanel == 1) {
806 newmode.ext.pixel |= (1 << 7);
807 newmode.ext.scale |= (1 << 8);
809 if (par->SecondCRTC) {
810 newmode.ext.head = NV_RD32(par->riva.PCRTC0, 0x00000860) &
812 newmode.ext.head2 = NV_RD32(par->riva.PCRTC0, 0x00002860) |
814 newmode.ext.crtcOwner = 3;
815 newmode.ext.pllsel |= 0x20000800;
816 newmode.ext.vpll2 = newmode.ext.vpll;
817 } else if (par->riva.twoHeads) {
818 newmode.ext.head = NV_RD32(par->riva.PCRTC0, 0x00000860) |
820 newmode.ext.head2 = NV_RD32(par->riva.PCRTC0, 0x00002860) &
822 newmode.ext.crtcOwner = 0;
823 newmode.ext.vpll2 = NV_RD32(par->riva.PRAMDAC0, 0x00000520);
825 if (par->FlatPanel == 1) {
826 newmode.ext.pixel |= (1 << 7);
827 newmode.ext.scale |= (1 << 8);
829 newmode.ext.cursorConfig = 0x02000100;
830 par->current_state = newmode;
831 riva_load_state(par, &par->current_state);
832 par->riva.LockUnlock(&par->riva, 0); /* important for HW cursor */
835 rivafb_blank(FB_BLANK_UNBLANK, info);
841 static void riva_update_var(struct fb_var_screeninfo *var,
842 const struct fb_videomode *modedb)
845 var->xres = var->xres_virtual = modedb->xres;
846 var->yres = modedb->yres;
847 if (var->yres_virtual < var->yres)
848 var->yres_virtual = var->yres;
849 var->xoffset = var->yoffset = 0;
850 var->pixclock = modedb->pixclock;
851 var->left_margin = modedb->left_margin;
852 var->right_margin = modedb->right_margin;
853 var->upper_margin = modedb->upper_margin;
854 var->lower_margin = modedb->lower_margin;
855 var->hsync_len = modedb->hsync_len;
856 var->vsync_len = modedb->vsync_len;
857 var->sync = modedb->sync;
858 var->vmode = modedb->vmode;
863 * rivafb_do_maximize -
864 * @info: pointer to fb_info object containing info for current riva board
873 * -EINVAL on failure, 0 on success
879 static int rivafb_do_maximize(struct fb_info *info,
880 struct fb_var_screeninfo *var,
896 /* use highest possible virtual resolution */
897 if (var->xres_virtual == -1 && var->yres_virtual == -1) {
898 printk(KERN_WARNING PFX
899 "using maximum available virtual resolution\n");
900 for (i = 0; modes[i].xres != -1; i++) {
901 if (modes[i].xres * nom / den * modes[i].yres <
905 if (modes[i].xres == -1) {
907 "could not find a virtual resolution that fits into video memory!!\n");
908 NVTRACE("EXIT - EINVAL error\n");
911 var->xres_virtual = modes[i].xres;
912 var->yres_virtual = modes[i].yres;
915 "virtual resolution set to maximum of %dx%d\n",
916 var->xres_virtual, var->yres_virtual);
917 } else if (var->xres_virtual == -1) {
918 var->xres_virtual = (info->fix.smem_len * den /
919 (nom * var->yres_virtual)) & ~15;
920 printk(KERN_WARNING PFX
921 "setting virtual X resolution to %d\n", var->xres_virtual);
922 } else if (var->yres_virtual == -1) {
923 var->xres_virtual = (var->xres_virtual + 15) & ~15;
924 var->yres_virtual = info->fix.smem_len * den /
925 (nom * var->xres_virtual);
926 printk(KERN_WARNING PFX
927 "setting virtual Y resolution to %d\n", var->yres_virtual);
929 var->xres_virtual = (var->xres_virtual + 15) & ~15;
930 if (var->xres_virtual * nom / den * var->yres_virtual > info->fix.smem_len) {
932 "mode %dx%dx%d rejected...resolution too high to fit into video memory!\n",
933 var->xres, var->yres, var->bits_per_pixel);
934 NVTRACE("EXIT - EINVAL error\n");
939 if (var->xres_virtual * nom / den >= 8192) {
940 printk(KERN_WARNING PFX
941 "virtual X resolution (%d) is too high, lowering to %d\n",
942 var->xres_virtual, 8192 * den / nom - 16);
943 var->xres_virtual = 8192 * den / nom - 16;
946 if (var->xres_virtual < var->xres) {
948 "virtual X resolution (%d) is smaller than real\n", var->xres_virtual);
952 if (var->yres_virtual < var->yres) {
954 "virtual Y resolution (%d) is smaller than real\n", var->yres_virtual);
957 if (var->yres_virtual > 0x7fff/nom)
958 var->yres_virtual = 0x7fff/nom;
959 if (var->xres_virtual > 0x7fff/nom)
960 var->xres_virtual = 0x7fff/nom;
966 riva_set_pattern(struct riva_par *par, int clr0, int clr1, int pat0, int pat1)
968 RIVA_FIFO_FREE(par->riva, Patt, 4);
969 NV_WR32(&par->riva.Patt->Color0, 0, clr0);
970 NV_WR32(&par->riva.Patt->Color1, 0, clr1);
971 NV_WR32(par->riva.Patt->Monochrome, 0, pat0);
972 NV_WR32(par->riva.Patt->Monochrome, 4, pat1);
975 /* acceleration routines */
976 static inline void wait_for_idle(struct riva_par *par)
978 while (par->riva.Busy(&par->riva));
982 * Set ROP. Translate X rop into ROP3. Internal routine.
985 riva_set_rop_solid(struct riva_par *par, int rop)
987 riva_set_pattern(par, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
988 RIVA_FIFO_FREE(par->riva, Rop, 1);
989 NV_WR32(&par->riva.Rop->Rop3, 0, rop);
993 static void riva_setup_accel(struct fb_info *info)
995 struct riva_par *par = info->par;
997 RIVA_FIFO_FREE(par->riva, Clip, 2);
998 NV_WR32(&par->riva.Clip->TopLeft, 0, 0x0);
999 NV_WR32(&par->riva.Clip->WidthHeight, 0,
1000 (info->var.xres_virtual & 0xffff) |
1001 (info->var.yres_virtual << 16));
1002 riva_set_rop_solid(par, 0xcc);
1007 * riva_get_cmap_len - query current color map length
1008 * @var: standard kernel fb changeable data
1011 * Get current color map length.
1014 * Length of color map
1017 * rivafb_setcolreg()
1019 static int riva_get_cmap_len(const struct fb_var_screeninfo *var)
1021 int rc = 256; /* reasonable default */
1023 switch (var->green.length) {
1025 rc = 256; /* 256 entries (2^8), 8 bpp and RGB8888 */
1028 rc = 32; /* 32 entries (2^5), 16 bpp, RGB555 */
1031 rc = 64; /* 64 entries (2^6), 16 bpp, RGB565 */
1034 /* should not occur */
1040 /* ------------------------------------------------------------------------- *
1042 * framebuffer operations
1044 * ------------------------------------------------------------------------- */
1046 static int rivafb_open(struct fb_info *info, int user)
1048 struct riva_par *par = info->par;
1051 mutex_lock(&par->open_lock);
1052 if (!par->ref_count) {
1054 memset(&par->state, 0, sizeof(struct vgastate));
1055 par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS;
1056 /* save the DAC for Riva128 */
1057 if (par->riva.Architecture == NV_ARCH_03)
1058 par->state.flags |= VGA_SAVE_CMAP;
1059 save_vga(&par->state);
1061 /* vgaHWunlock() + riva unlock (0x7F) */
1062 CRTCout(par, 0x11, 0xFF);
1063 par->riva.LockUnlock(&par->riva, 0);
1065 riva_save_state(par, &par->initial_state);
1068 mutex_unlock(&par->open_lock);
1073 static int rivafb_release(struct fb_info *info, int user)
1075 struct riva_par *par = info->par;
1078 mutex_lock(&par->open_lock);
1079 if (!par->ref_count) {
1080 mutex_unlock(&par->open_lock);
1083 if (par->ref_count == 1) {
1084 par->riva.LockUnlock(&par->riva, 0);
1085 par->riva.LoadStateExt(&par->riva, &par->initial_state.ext);
1086 riva_load_state(par, &par->initial_state);
1088 restore_vga(&par->state);
1090 par->riva.LockUnlock(&par->riva, 1);
1093 mutex_unlock(&par->open_lock);
1098 static int rivafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1100 const struct fb_videomode *mode;
1101 struct riva_par *par = info->par;
1102 int nom, den; /* translating from pixels->bytes */
1106 switch (var->bits_per_pixel) {
1108 var->red.offset = var->green.offset = var->blue.offset = 0;
1109 var->red.length = var->green.length = var->blue.length = 8;
1110 var->bits_per_pixel = 8;
1114 var->green.length = 5;
1117 var->bits_per_pixel = 16;
1118 /* The Riva128 supports RGB555 only */
1119 if (par->riva.Architecture == NV_ARCH_03)
1120 var->green.length = 5;
1121 if (var->green.length == 5) {
1122 /* 0rrrrrgg gggbbbbb */
1123 var->red.offset = 10;
1124 var->green.offset = 5;
1125 var->blue.offset = 0;
1126 var->red.length = 5;
1127 var->green.length = 5;
1128 var->blue.length = 5;
1130 /* rrrrrggg gggbbbbb */
1131 var->red.offset = 11;
1132 var->green.offset = 5;
1133 var->blue.offset = 0;
1134 var->red.length = 5;
1135 var->green.length = 6;
1136 var->blue.length = 5;
1142 var->red.length = var->green.length = var->blue.length = 8;
1143 var->bits_per_pixel = 32;
1144 var->red.offset = 16;
1145 var->green.offset = 8;
1146 var->blue.offset = 0;
1152 "mode %dx%dx%d rejected...color depth not supported.\n",
1153 var->xres, var->yres, var->bits_per_pixel);
1154 NVTRACE("EXIT, returning -EINVAL\n");
1159 if (!info->monspecs.vfmax || !info->monspecs.hfmax ||
1160 !info->monspecs.dclkmax || !fb_validate_mode(var, info))
1164 /* calculate modeline if supported by monitor */
1165 if (!mode_valid && info->monspecs.gtf) {
1166 if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info))
1171 mode = fb_find_best_mode(var, &info->modelist);
1173 riva_update_var(var, mode);
1178 if (!mode_valid && info->monspecs.modedb_len)
1181 if (var->xres_virtual < var->xres)
1182 var->xres_virtual = var->xres;
1183 if (var->yres_virtual <= var->yres)
1184 var->yres_virtual = -1;
1185 if (rivafb_do_maximize(info, var, nom, den) < 0)
1188 if (var->xoffset < 0)
1190 if (var->yoffset < 0)
1193 /* truncate xoffset and yoffset to maximum if too high */
1194 if (var->xoffset > var->xres_virtual - var->xres)
1195 var->xoffset = var->xres_virtual - var->xres - 1;
1197 if (var->yoffset > var->yres_virtual - var->yres)
1198 var->yoffset = var->yres_virtual - var->yres - 1;
1200 var->red.msb_right =
1201 var->green.msb_right =
1202 var->blue.msb_right =
1203 var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1208 static int rivafb_set_par(struct fb_info *info)
1210 struct riva_par *par = info->par;
1214 /* vgaHWunlock() + riva unlock (0x7F) */
1215 CRTCout(par, 0x11, 0xFF);
1216 par->riva.LockUnlock(&par->riva, 0);
1217 rc = riva_load_video_mode(info);
1220 if(!(info->flags & FBINFO_HWACCEL_DISABLED))
1221 riva_setup_accel(info);
1223 par->cursor_reset = 1;
1224 info->fix.line_length = (info->var.xres_virtual * (info->var.bits_per_pixel >> 3));
1225 info->fix.visual = (info->var.bits_per_pixel == 8) ?
1226 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
1228 if (info->flags & FBINFO_HWACCEL_DISABLED)
1229 info->pixmap.scan_align = 1;
1231 info->pixmap.scan_align = 4;
1239 * rivafb_pan_display
1240 * @var: standard kernel fb changeable data
1242 * @info: pointer to fb_info object containing info for current riva board
1245 * Pan (or wrap, depending on the `vmode' field) the display using the
1246 * `xoffset' and `yoffset' fields of the `var' structure.
1247 * If the values don't fit, return -EINVAL.
1249 * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
1251 static int rivafb_pan_display(struct fb_var_screeninfo *var,
1252 struct fb_info *info)
1254 struct riva_par *par = info->par;
1258 base = var->yoffset * info->fix.line_length + var->xoffset;
1259 par->riva.SetStartAddress(&par->riva, base);
1264 static int rivafb_blank(int blank, struct fb_info *info)
1266 struct riva_par *par= info->par;
1267 unsigned char tmp, vesa;
1269 tmp = SEQin(par, 0x01) & ~0x20; /* screen on/off */
1270 vesa = CRTCin(par, 0x1a) & ~0xc0; /* sync on/off */
1278 case FB_BLANK_UNBLANK:
1279 case FB_BLANK_NORMAL:
1281 case FB_BLANK_VSYNC_SUSPEND:
1284 case FB_BLANK_HSYNC_SUSPEND:
1287 case FB_BLANK_POWERDOWN:
1292 SEQout(par, 0x01, tmp);
1293 CRTCout(par, 0x1a, vesa);
1302 * @regno: register index
1303 * @red: red component
1304 * @green: green component
1305 * @blue: blue component
1306 * @transp: transparency
1307 * @info: pointer to fb_info object containing info for current riva board
1310 * Set a single color register. The values supplied have a 16 bit
1314 * Return != 0 for invalid regno.
1317 * fbcmap.c:fb_set_cmap()
1319 static int rivafb_setcolreg(unsigned regno, unsigned red, unsigned green,
1320 unsigned blue, unsigned transp,
1321 struct fb_info *info)
1323 struct riva_par *par = info->par;
1324 RIVA_HW_INST *chip = &par->riva;
1327 if (regno >= riva_get_cmap_len(&info->var))
1330 if (info->var.grayscale) {
1331 /* gray = 0.30*R + 0.59*G + 0.11*B */
1332 red = green = blue =
1333 (red * 77 + green * 151 + blue * 28) >> 8;
1336 if (regno < 16 && info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
1337 ((u32 *) info->pseudo_palette)[regno] =
1338 (regno << info->var.red.offset) |
1339 (regno << info->var.green.offset) |
1340 (regno << info->var.blue.offset);
1342 * The Riva128 2D engine requires color information in
1343 * TrueColor format even if framebuffer is in DirectColor
1345 if (par->riva.Architecture == NV_ARCH_03) {
1346 switch (info->var.bits_per_pixel) {
1348 par->palette[regno] = ((red & 0xf800) >> 1) |
1349 ((green & 0xf800) >> 6) |
1350 ((blue & 0xf800) >> 11);
1353 par->palette[regno] = ((red & 0xff00) << 8) |
1354 ((green & 0xff00)) |
1355 ((blue & 0xff00) >> 8);
1361 switch (info->var.bits_per_pixel) {
1363 /* "transparent" stuff is completely ignored. */
1364 riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8);
1367 if (info->var.green.length == 5) {
1368 for (i = 0; i < 8; i++) {
1369 riva_wclut(chip, regno*8+i, red >> 8,
1370 green >> 8, blue >> 8);
1376 for (i = 0; i < 8; i++) {
1377 riva_wclut(chip, regno*8+i,
1378 red >> 8, green >> 8,
1382 riva_rclut(chip, regno*4, &r, &g, &b);
1383 for (i = 0; i < 4; i++)
1384 riva_wclut(chip, regno*4+i, r,
1389 riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8);
1399 * rivafb_fillrect - hardware accelerated color fill function
1400 * @info: pointer to fb_info structure
1401 * @rect: pointer to fb_fillrect structure
1404 * This function fills up a region of framebuffer memory with a solid
1405 * color with a choice of two different ROP's, copy or invert.
1410 static void rivafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
1412 struct riva_par *par = info->par;
1413 u_int color, rop = 0;
1415 if ((info->flags & FBINFO_HWACCEL_DISABLED)) {
1416 cfb_fillrect(info, rect);
1420 if (info->var.bits_per_pixel == 8)
1421 color = rect->color;
1423 if (par->riva.Architecture != NV_ARCH_03)
1424 color = ((u32 *)info->pseudo_palette)[rect->color];
1426 color = par->palette[rect->color];
1429 switch (rect->rop) {
1439 riva_set_rop_solid(par, rop);
1441 RIVA_FIFO_FREE(par->riva, Bitmap, 1);
1442 NV_WR32(&par->riva.Bitmap->Color1A, 0, color);
1444 RIVA_FIFO_FREE(par->riva, Bitmap, 2);
1445 NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].TopLeft, 0,
1446 (rect->dx << 16) | rect->dy);
1448 NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].WidthHeight, 0,
1449 (rect->width << 16) | rect->height);
1451 riva_set_rop_solid(par, 0xcc);
1456 * rivafb_copyarea - hardware accelerated blit function
1457 * @info: pointer to fb_info structure
1458 * @region: pointer to fb_copyarea structure
1461 * This copies an area of pixels from one location to another
1466 static void rivafb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
1468 struct riva_par *par = info->par;
1470 if ((info->flags & FBINFO_HWACCEL_DISABLED)) {
1471 cfb_copyarea(info, region);
1475 RIVA_FIFO_FREE(par->riva, Blt, 3);
1476 NV_WR32(&par->riva.Blt->TopLeftSrc, 0,
1477 (region->sy << 16) | region->sx);
1478 NV_WR32(&par->riva.Blt->TopLeftDst, 0,
1479 (region->dy << 16) | region->dx);
1481 NV_WR32(&par->riva.Blt->WidthHeight, 0,
1482 (region->height << 16) | region->width);
1486 static inline void convert_bgcolor_16(u32 *col)
1488 *col = ((*col & 0x0000F800) << 8)
1489 | ((*col & 0x00007E0) << 5)
1490 | ((*col & 0x0000001F) << 3)
1496 * rivafb_imageblit: hardware accelerated color expand function
1497 * @info: pointer to fb_info structure
1498 * @image: pointer to fb_image structure
1501 * If the source is a monochrome bitmap, the function fills up a a region
1502 * of framebuffer memory with pixels whose color is determined by the bit
1503 * setting of the bitmap, 1 - foreground, 0 - background.
1505 * If the source is not a monochrome bitmap, color expansion is not done.
1506 * In this case, it is channeled to a software function.
1511 static void rivafb_imageblit(struct fb_info *info,
1512 const struct fb_image *image)
1514 struct riva_par *par = info->par;
1515 u32 fgx = 0, bgx = 0, width, tmp;
1516 u8 *cdat = (u8 *) image->data;
1517 volatile u32 __iomem *d;
1520 if ((info->flags & FBINFO_HWACCEL_DISABLED) || image->depth != 1) {
1521 cfb_imageblit(info, image);
1525 switch (info->var.bits_per_pixel) {
1527 fgx = image->fg_color;
1528 bgx = image->bg_color;
1532 if (par->riva.Architecture != NV_ARCH_03) {
1533 fgx = ((u32 *)info->pseudo_palette)[image->fg_color];
1534 bgx = ((u32 *)info->pseudo_palette)[image->bg_color];
1536 fgx = par->palette[image->fg_color];
1537 bgx = par->palette[image->bg_color];
1539 if (info->var.green.length == 6)
1540 convert_bgcolor_16(&bgx);
1544 RIVA_FIFO_FREE(par->riva, Bitmap, 7);
1545 NV_WR32(&par->riva.Bitmap->ClipE.TopLeft, 0,
1546 (image->dy << 16) | (image->dx & 0xFFFF));
1547 NV_WR32(&par->riva.Bitmap->ClipE.BottomRight, 0,
1548 (((image->dy + image->height) << 16) |
1549 ((image->dx + image->width) & 0xffff)));
1550 NV_WR32(&par->riva.Bitmap->Color0E, 0, bgx);
1551 NV_WR32(&par->riva.Bitmap->Color1E, 0, fgx);
1552 NV_WR32(&par->riva.Bitmap->WidthHeightInE, 0,
1553 (image->height << 16) | ((image->width + 31) & ~31));
1554 NV_WR32(&par->riva.Bitmap->WidthHeightOutE, 0,
1555 (image->height << 16) | ((image->width + 31) & ~31));
1556 NV_WR32(&par->riva.Bitmap->PointE, 0,
1557 (image->dy << 16) | (image->dx & 0xFFFF));
1559 d = &par->riva.Bitmap->MonochromeData01E;
1561 width = (image->width + 31)/32;
1562 size = width * image->height;
1563 while (size >= 16) {
1564 RIVA_FIFO_FREE(par->riva, Bitmap, 16);
1565 for (i = 0; i < 16; i++) {
1566 tmp = *((u32 *)cdat);
1567 cdat = (u8 *)((u32 *)cdat + 1);
1568 reverse_order(&tmp);
1569 NV_WR32(d, i*4, tmp);
1574 RIVA_FIFO_FREE(par->riva, Bitmap, size);
1575 for (i = 0; i < size; i++) {
1576 tmp = *((u32 *) cdat);
1577 cdat = (u8 *)((u32 *)cdat + 1);
1578 reverse_order(&tmp);
1579 NV_WR32(d, i*4, tmp);
1585 * rivafb_cursor - hardware cursor function
1586 * @info: pointer to info structure
1587 * @cursor: pointer to fbcursor structure
1590 * A cursor function that supports displaying a cursor image via hardware.
1591 * Within the kernel, copy and invert rops are supported. If exported
1592 * to user space, only the copy rop will be supported.
1597 static int rivafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1599 struct riva_par *par = info->par;
1600 u8 data[MAX_CURS * MAX_CURS/8];
1601 int i, set = cursor->set;
1604 if (cursor->image.width > MAX_CURS || cursor->image.height > MAX_CURS)
1607 par->riva.ShowHideCursor(&par->riva, 0);
1609 if (par->cursor_reset) {
1610 set = FB_CUR_SETALL;
1611 par->cursor_reset = 0;
1614 if (set & FB_CUR_SETSIZE)
1615 memset_io(par->riva.CURSOR, 0, MAX_CURS * MAX_CURS * 2);
1617 if (set & FB_CUR_SETPOS) {
1620 yy = cursor->image.dy - info->var.yoffset;
1621 xx = cursor->image.dx - info->var.xoffset;
1625 NV_WR32(par->riva.PRAMDAC, 0x0000300, temp);
1629 if (set & (FB_CUR_SETSHAPE | FB_CUR_SETCMAP | FB_CUR_SETIMAGE)) {
1630 u32 bg_idx = cursor->image.bg_color;
1631 u32 fg_idx = cursor->image.fg_color;
1632 u32 s_pitch = (cursor->image.width+7) >> 3;
1633 u32 d_pitch = MAX_CURS/8;
1634 u8 *dat = (u8 *) cursor->image.data;
1635 u8 *msk = (u8 *) cursor->mask;
1638 src = kmalloc(s_pitch * cursor->image.height, GFP_ATOMIC);
1641 switch (cursor->rop) {
1643 for (i = 0; i < s_pitch * cursor->image.height; i++)
1644 src[i] = dat[i] ^ msk[i];
1648 for (i = 0; i < s_pitch * cursor->image.height; i++)
1649 src[i] = dat[i] & msk[i];
1653 fb_pad_aligned_buffer(data, d_pitch, src, s_pitch,
1654 cursor->image.height);
1656 bg = ((info->cmap.red[bg_idx] & 0xf8) << 7) |
1657 ((info->cmap.green[bg_idx] & 0xf8) << 2) |
1658 ((info->cmap.blue[bg_idx] & 0xf8) >> 3) |
1661 fg = ((info->cmap.red[fg_idx] & 0xf8) << 7) |
1662 ((info->cmap.green[fg_idx] & 0xf8) << 2) |
1663 ((info->cmap.blue[fg_idx] & 0xf8) >> 3) |
1666 par->riva.LockUnlock(&par->riva, 0);
1668 rivafb_load_cursor_image(par, data, bg, fg,
1669 cursor->image.width,
1670 cursor->image.height);
1676 par->riva.ShowHideCursor(&par->riva, 1);
1681 static int rivafb_sync(struct fb_info *info)
1683 struct riva_par *par = info->par;
1689 /* ------------------------------------------------------------------------- *
1691 * initialization helper functions
1693 * ------------------------------------------------------------------------- */
1695 /* kernel interface */
1696 static struct fb_ops riva_fb_ops = {
1697 .owner = THIS_MODULE,
1698 .fb_open = rivafb_open,
1699 .fb_release = rivafb_release,
1700 .fb_check_var = rivafb_check_var,
1701 .fb_set_par = rivafb_set_par,
1702 .fb_setcolreg = rivafb_setcolreg,
1703 .fb_pan_display = rivafb_pan_display,
1704 .fb_blank = rivafb_blank,
1705 .fb_fillrect = rivafb_fillrect,
1706 .fb_copyarea = rivafb_copyarea,
1707 .fb_imageblit = rivafb_imageblit,
1708 .fb_cursor = rivafb_cursor,
1709 .fb_sync = rivafb_sync,
1712 static int __devinit riva_set_fbinfo(struct fb_info *info)
1714 unsigned int cmap_len;
1715 struct riva_par *par = info->par;
1718 info->flags = FBINFO_DEFAULT
1719 | FBINFO_HWACCEL_XPAN
1720 | FBINFO_HWACCEL_YPAN
1721 | FBINFO_HWACCEL_COPYAREA
1722 | FBINFO_HWACCEL_FILLRECT
1723 | FBINFO_HWACCEL_IMAGEBLIT;
1725 /* Accel seems to not work properly on NV30 yet...*/
1726 if ((par->riva.Architecture == NV_ARCH_30) || noaccel) {
1727 printk(KERN_DEBUG PFX "disabling acceleration\n");
1728 info->flags |= FBINFO_HWACCEL_DISABLED;
1731 info->var = rivafb_default_var;
1732 info->fix.visual = (info->var.bits_per_pixel == 8) ?
1733 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
1735 info->pseudo_palette = par->pseudo_palette;
1737 cmap_len = riva_get_cmap_len(&info->var);
1738 fb_alloc_cmap(&info->cmap, cmap_len, 0);
1740 info->pixmap.size = 8 * 1024;
1741 info->pixmap.buf_align = 4;
1742 info->pixmap.access_align = 32;
1743 info->pixmap.flags = FB_PIXMAP_SYSTEM;
1744 info->var.yres_virtual = -1;
1746 return (rivafb_check_var(&info->var, info));
1749 #ifdef CONFIG_PPC_OF
1750 static int __devinit riva_get_EDID_OF(struct fb_info *info, struct pci_dev *pd)
1752 struct riva_par *par = info->par;
1753 struct device_node *dp;
1754 const unsigned char *pedid = NULL;
1755 const unsigned char *disptype = NULL;
1756 static char *propnames[] = {
1757 "DFP,EDID", "LCD,EDID", "EDID", "EDID1", "EDID,B", "EDID,A", NULL };
1761 dp = pci_device_to_OF_node(pd);
1762 for (; dp != NULL; dp = dp->child) {
1763 disptype = get_property(dp, "display-type", NULL);
1764 if (disptype == NULL)
1766 if (strncmp(disptype, "LCD", 3) != 0)
1768 for (i = 0; propnames[i] != NULL; ++i) {
1769 pedid = get_property(dp, propnames[i], NULL);
1770 if (pedid != NULL) {
1771 par->EDID = (unsigned char *)pedid;
1772 NVTRACE("LCD found.\n");
1780 #endif /* CONFIG_PPC_OF */
1782 #if defined(CONFIG_FB_RIVA_I2C) && !defined(CONFIG_PPC_OF)
1783 static int __devinit riva_get_EDID_i2c(struct fb_info *info)
1785 struct riva_par *par = info->par;
1786 struct fb_var_screeninfo var;
1790 riva_create_i2c_busses(par);
1791 for (i = 0; i < par->bus; i++) {
1792 riva_probe_i2c_connector(par, i+1, &par->EDID);
1793 if (par->EDID && !fb_parse_edid(par->EDID, &var)) {
1794 printk(PFX "Found EDID Block from BUS %i\n", i);
1800 return (par->EDID) ? 1 : 0;
1802 #endif /* CONFIG_FB_RIVA_I2C */
1804 static void __devinit riva_update_default_var(struct fb_var_screeninfo *var,
1805 struct fb_info *info)
1807 struct fb_monspecs *specs = &info->monspecs;
1808 struct fb_videomode modedb;
1811 /* respect mode options */
1813 fb_find_mode(var, info, mode_option,
1814 specs->modedb, specs->modedb_len,
1816 } else if (specs->modedb != NULL) {
1817 /* get preferred timing */
1818 if (info->monspecs.misc & FB_MISC_1ST_DETAIL) {
1821 for (i = 0; i < specs->modedb_len; i++) {
1822 if (specs->modedb[i].flag & FB_MODE_IS_FIRST) {
1823 modedb = specs->modedb[i];
1828 /* otherwise, get first mode in database */
1829 modedb = specs->modedb[0];
1831 var->bits_per_pixel = 8;
1832 riva_update_var(var, &modedb);
1838 static void __devinit riva_get_EDID(struct fb_info *info, struct pci_dev *pdev)
1841 #ifdef CONFIG_PPC_OF
1842 if (!riva_get_EDID_OF(info, pdev))
1843 printk(PFX "could not retrieve EDID from OF\n");
1844 #elif defined(CONFIG_FB_RIVA_I2C)
1845 if (!riva_get_EDID_i2c(info))
1846 printk(PFX "could not retrieve EDID from DDC/I2C\n");
1852 static void __devinit riva_get_edidinfo(struct fb_info *info)
1854 struct fb_var_screeninfo *var = &rivafb_default_var;
1855 struct riva_par *par = info->par;
1857 fb_edid_to_monspecs(par->EDID, &info->monspecs);
1858 fb_videomode_to_modelist(info->monspecs.modedb, info->monspecs.modedb_len,
1860 riva_update_default_var(var, info);
1862 /* if user specified flatpanel, we respect that */
1863 if (info->monspecs.input & FB_DISP_DDI)
1867 /* ------------------------------------------------------------------------- *
1871 * ------------------------------------------------------------------------- */
1873 static u32 __devinit riva_get_arch(struct pci_dev *pd)
1877 switch (pd->device & 0x0ff0) {
1878 case 0x0100: /* GeForce 256 */
1879 case 0x0110: /* GeForce2 MX */
1880 case 0x0150: /* GeForce2 */
1881 case 0x0170: /* GeForce4 MX */
1882 case 0x0180: /* GeForce4 MX (8x AGP) */
1883 case 0x01A0: /* nForce */
1884 case 0x01F0: /* nForce2 */
1887 case 0x0200: /* GeForce3 */
1888 case 0x0250: /* GeForce4 Ti */
1889 case 0x0280: /* GeForce4 Ti (8x AGP) */
1892 case 0x0300: /* GeForceFX 5800 */
1893 case 0x0310: /* GeForceFX 5600 */
1894 case 0x0320: /* GeForceFX 5200 */
1895 case 0x0330: /* GeForceFX 5900 */
1896 case 0x0340: /* GeForceFX 5700 */
1899 case 0x0020: /* TNT, TNT2 */
1902 case 0x0010: /* Riva128 */
1905 default: /* unknown architecture */
1911 static int __devinit rivafb_probe(struct pci_dev *pd,
1912 const struct pci_device_id *ent)
1914 struct riva_par *default_par;
1915 struct fb_info *info;
1921 info = framebuffer_alloc(sizeof(struct riva_par), &pd->dev);
1923 printk (KERN_ERR PFX "could not allocate memory\n");
1927 default_par = info->par;
1928 default_par->pdev = pd;
1930 info->pixmap.addr = kzalloc(8 * 1024, GFP_KERNEL);
1931 if (info->pixmap.addr == NULL) {
1933 goto err_framebuffer_release;
1936 ret = pci_enable_device(pd);
1938 printk(KERN_ERR PFX "cannot enable PCI device\n");
1939 goto err_free_pixmap;
1942 ret = pci_request_regions(pd, "rivafb");
1944 printk(KERN_ERR PFX "cannot request PCI regions\n");
1945 goto err_disable_device;
1948 mutex_init(&default_par->open_lock);
1949 default_par->riva.Architecture = riva_get_arch(pd);
1951 default_par->Chipset = (pd->vendor << 16) | pd->device;
1952 printk(KERN_INFO PFX "nVidia device/chipset %X\n",default_par->Chipset);
1954 if(default_par->riva.Architecture == 0) {
1955 printk(KERN_ERR PFX "unknown NV_ARCH\n");
1957 goto err_release_region;
1959 if(default_par->riva.Architecture == NV_ARCH_10 ||
1960 default_par->riva.Architecture == NV_ARCH_20 ||
1961 default_par->riva.Architecture == NV_ARCH_30) {
1962 sprintf(rivafb_fix.id, "NV%x", (pd->device & 0x0ff0) >> 4);
1964 sprintf(rivafb_fix.id, "NV%x", default_par->riva.Architecture);
1967 default_par->FlatPanel = flatpanel;
1969 printk(KERN_INFO PFX "flatpanel support enabled\n");
1970 default_par->forceCRTC = forceCRTC;
1972 rivafb_fix.mmio_len = pci_resource_len(pd, 0);
1973 rivafb_fix.smem_len = pci_resource_len(pd, 1);
1976 /* enable IO and mem if not already done */
1979 pci_read_config_word(pd, PCI_COMMAND, &cmd);
1980 cmd |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
1981 pci_write_config_word(pd, PCI_COMMAND, cmd);
1984 rivafb_fix.mmio_start = pci_resource_start(pd, 0);
1985 rivafb_fix.smem_start = pci_resource_start(pd, 1);
1987 default_par->ctrl_base = ioremap(rivafb_fix.mmio_start,
1988 rivafb_fix.mmio_len);
1989 if (!default_par->ctrl_base) {
1990 printk(KERN_ERR PFX "cannot ioremap MMIO base\n");
1992 goto err_release_region;
1995 switch (default_par->riva.Architecture) {
1997 /* Riva128's PRAMIN is in the "framebuffer" space
1998 * Since these cards were never made with more than 8 megabytes
1999 * we can safely allocate this separately.
2001 default_par->riva.PRAMIN = ioremap(rivafb_fix.smem_start + 0x00C00000, 0x00008000);
2002 if (!default_par->riva.PRAMIN) {
2003 printk(KERN_ERR PFX "cannot ioremap PRAMIN region\n");
2005 goto err_iounmap_ctrl_base;
2012 default_par->riva.PCRTC0 =
2013 (u32 __iomem *)(default_par->ctrl_base + 0x00600000);
2014 default_par->riva.PRAMIN =
2015 (u32 __iomem *)(default_par->ctrl_base + 0x00710000);
2018 riva_common_setup(default_par);
2020 if (default_par->riva.Architecture == NV_ARCH_03) {
2021 default_par->riva.PCRTC = default_par->riva.PCRTC0
2022 = default_par->riva.PGRAPH;
2025 rivafb_fix.smem_len = riva_get_memlen(default_par) * 1024;
2026 default_par->dclk_max = riva_get_maxdclk(default_par) * 1000;
2027 info->screen_base = ioremap(rivafb_fix.smem_start,
2028 rivafb_fix.smem_len);
2029 if (!info->screen_base) {
2030 printk(KERN_ERR PFX "cannot ioremap FB base\n");
2032 goto err_iounmap_pramin;
2037 default_par->mtrr.vram = mtrr_add(rivafb_fix.smem_start,
2038 rivafb_fix.smem_len,
2039 MTRR_TYPE_WRCOMB, 1);
2040 if (default_par->mtrr.vram < 0) {
2041 printk(KERN_ERR PFX "unable to setup MTRR\n");
2043 default_par->mtrr.vram_valid = 1;
2044 /* let there be speed */
2045 printk(KERN_INFO PFX "RIVA MTRR set to ON\n");
2048 #endif /* CONFIG_MTRR */
2050 info->fbops = &riva_fb_ops;
2051 info->fix = rivafb_fix;
2052 riva_get_EDID(info, pd);
2053 riva_get_edidinfo(info);
2055 ret=riva_set_fbinfo(info);
2057 printk(KERN_ERR PFX "error setting initial video mode\n");
2058 goto err_iounmap_screen_base;
2061 fb_destroy_modedb(info->monspecs.modedb);
2062 info->monspecs.modedb = NULL;
2064 pci_set_drvdata(pd, info);
2067 riva_bl_init(info->par);
2069 ret = register_framebuffer(info);
2072 "error registering riva framebuffer\n");
2073 goto err_iounmap_screen_base;
2076 printk(KERN_INFO PFX
2077 "PCI nVidia %s framebuffer ver %s (%dMB @ 0x%lX)\n",
2080 info->fix.smem_len / (1024 * 1024),
2081 info->fix.smem_start);
2086 err_iounmap_screen_base:
2087 #ifdef CONFIG_FB_RIVA_I2C
2088 riva_delete_i2c_busses(info->par);
2090 iounmap(info->screen_base);
2092 if (default_par->riva.Architecture == NV_ARCH_03)
2093 iounmap(default_par->riva.PRAMIN);
2094 err_iounmap_ctrl_base:
2095 iounmap(default_par->ctrl_base);
2097 pci_release_regions(pd);
2100 kfree(info->pixmap.addr);
2101 err_framebuffer_release:
2102 framebuffer_release(info);
2107 static void __exit rivafb_remove(struct pci_dev *pd)
2109 struct fb_info *info = pci_get_drvdata(pd);
2110 struct riva_par *par = info->par;
2114 #ifdef CONFIG_FB_RIVA_I2C
2115 riva_delete_i2c_busses(par);
2119 unregister_framebuffer(info);
2124 if (par->mtrr.vram_valid)
2125 mtrr_del(par->mtrr.vram, info->fix.smem_start,
2126 info->fix.smem_len);
2127 #endif /* CONFIG_MTRR */
2129 iounmap(par->ctrl_base);
2130 iounmap(info->screen_base);
2131 if (par->riva.Architecture == NV_ARCH_03)
2132 iounmap(par->riva.PRAMIN);
2133 pci_release_regions(pd);
2134 kfree(info->pixmap.addr);
2135 framebuffer_release(info);
2136 pci_set_drvdata(pd, NULL);
2140 /* ------------------------------------------------------------------------- *
2144 * ------------------------------------------------------------------------- */
2147 static int __init rivafb_setup(char *options)
2152 if (!options || !*options)
2155 while ((this_opt = strsep(&options, ",")) != NULL) {
2156 if (!strncmp(this_opt, "forceCRTC", 9)) {
2160 if (!*p || !*(++p)) continue;
2161 forceCRTC = *p - '0';
2162 if (forceCRTC < 0 || forceCRTC > 1)
2164 } else if (!strncmp(this_opt, "flatpanel", 9)) {
2166 } else if (!strncmp(this_opt, "backlight:", 10)) {
2167 backlight = simple_strtoul(this_opt+10, NULL, 0);
2169 } else if (!strncmp(this_opt, "nomtrr", 6)) {
2172 } else if (!strncmp(this_opt, "strictmode", 10)) {
2174 } else if (!strncmp(this_opt, "noaccel", 7)) {
2177 mode_option = this_opt;
2182 #endif /* !MODULE */
2184 static struct pci_driver rivafb_driver = {
2186 .id_table = rivafb_pci_tbl,
2187 .probe = rivafb_probe,
2188 .remove = __exit_p(rivafb_remove),
2193 /* ------------------------------------------------------------------------- *
2197 * ------------------------------------------------------------------------- */
2199 static int __devinit rivafb_init(void)
2202 char *option = NULL;
2204 if (fb_get_options("rivafb", &option))
2206 rivafb_setup(option);
2208 return pci_register_driver(&rivafb_driver);
2212 module_init(rivafb_init);
2215 static void __exit rivafb_exit(void)
2217 pci_unregister_driver(&rivafb_driver);
2220 module_exit(rivafb_exit);
2223 module_param(noaccel, bool, 0);
2224 MODULE_PARM_DESC(noaccel, "bool: disable acceleration");
2225 module_param(flatpanel, int, 0);
2226 MODULE_PARM_DESC(flatpanel, "Enables experimental flat panel support for some chipsets. (0 or 1=enabled) (default=0)");
2227 module_param(forceCRTC, int, 0);
2228 MODULE_PARM_DESC(forceCRTC, "Forces usage of a particular CRTC in case autodetection fails. (0 or 1) (default=autodetect)");
2230 module_param(nomtrr, bool, 0);
2231 MODULE_PARM_DESC(nomtrr, "Disables MTRR support (0 or 1=disabled) (default=0)");
2233 module_param(strictmode, bool, 0);
2234 MODULE_PARM_DESC(strictmode, "Only use video modes from EDID");
2236 MODULE_AUTHOR("Ani Joshi, maintainer");
2237 MODULE_DESCRIPTION("Framebuffer driver for nVidia Riva 128, TNT, TNT2, and the GeForce series");
2238 MODULE_LICENSE("GPL");