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1da177e4
LT		 1/*
2 * linux/drivers/video/riva/fbdev.c - nVidia RIVA 128/TNT/TNT2 fb driver
3 *
4 * Maintained by Ani Joshi <ajoshi@shell.unixbox.com>
5 *
6 * Copyright 1999-2000 Jeff Garzik
7 *
8 * Contributors:
9 *
10 * Ani Joshi: Lots of debugging and cleanup work, really helped
11 * get the driver going
12 *
13 * Ferenc Bakonyi: Bug fixes, cleanup, modularization
14 *
15 * Jindrich Makovicka: Accel code help, hw cursor, mtrr
16 *
17 * Paul Richards: Bug fixes, updates
18 *
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.
22 *
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
25 * for more details.
26 *
27 * Known bugs and issues:
28 * restoring text mode fails
29 * doublescan modes are broken
30 */
31
1da177e4
LT		 32#include <linux/module.h>
33#include <linux/kernel.h>
34#include <linux/errno.h>
35#include <linux/string.h>
36#include <linux/mm.h>
1da177e4
LT		 37#include <linux/slab.h>
38#include <linux/delay.h>
39#include <linux/fb.h>
40#include <linux/init.h>
41#include <linux/pci.h>
5474c120 42#include <linux/backlight.h>
1c667682 43#include <linux/bitrev.h>
1da177e4 44#ifdef CONFIG_PMAC_BACKLIGHT
e8222502 45#include <asm/machdep.h>
1da177e4
LT		 46#include <asm/backlight.h>
47#endif
48
49#include "rivafb.h"
50#include "nvreg.h"
51
1da177e4
LT		 52/* version number of this driver */
53#define RIVAFB_VERSION "0.9.5b"
54
55/* ------------------------------------------------------------------------- *
56 *
57 * various helpful macros and constants
58 *
59 * ------------------------------------------------------------------------- */
60#ifdef CONFIG_FB_RIVA_DEBUG
61#define NVTRACE printk
62#else
63#define NVTRACE if(0) printk
64#endif
65
5ae12170
HH		 66#define NVTRACE_ENTER(...) NVTRACE("%s START\n", __func__)
67#define NVTRACE_LEAVE(...) NVTRACE("%s END\n", __func__)
1da177e4
LT		 68
69#ifdef CONFIG_FB_RIVA_DEBUG
70#define assert(expr) \
71 if(!(expr)) { \
72 printk( "Assertion failed! %s,%s,%s,line=%d\n",\
5ae12170 73 #expr,__FILE__,__func__,__LINE__); \
1da177e4
LT		 74 BUG(); \
75 }
76#else
77#define assert(expr)
78#endif
79
80#define PFX "rivafb: "
81
82/* macro that allows you to set overflow bits */
83#define SetBitField(value,from,to) SetBF(to,GetBF(value,from))
84#define SetBit(n) (1<<(n))
85#define Set8Bits(value) ((value)&0xff)
86
87/* HW cursor parameters */
88#define MAX_CURS 32
89
90/* ------------------------------------------------------------------------- *
91 *
92 * prototypes
93 *
94 * ------------------------------------------------------------------------- */
95
96static int rivafb_blank(int blank, struct fb_info *info);
97
98/* ------------------------------------------------------------------------- *
99 *
100 * card identification
101 *
102 * ------------------------------------------------------------------------- */
103
b5087669 104static const struct pci_device_id rivafb_pci_tbl[] = {
1da177e4
LT		 105 { PCI_VENDOR_ID_NVIDIA_SGS, PCI_DEVICE_ID_NVIDIA_SGS_RIVA128,
106 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
107 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT,
108 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
109 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT2,
110 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
111 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UTNT2,
112 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
113 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_VTNT2,
114 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
115 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UVTNT2,
116 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
117 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_ITNT2,
118 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
119 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_SDR,
120 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
121 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_DDR,
122 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
123 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO,
124 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
125 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX,
126 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
127 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX2,
128 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
129 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GO,
130 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
131 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_MXR,
132 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
133 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS,
134 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
135 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS2,
136 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
137 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_ULTRA,
138 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
139 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_PRO,
140 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
141 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_460,
142 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
143 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_440,
144 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
145 // NF2/IGP version, GeForce 4 MX, NV18
146 { PCI_VENDOR_ID_NVIDIA, 0x01f0,
147 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
148 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_420,
149 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
150 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO,
151 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
152 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO,
153 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
154 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO_M32,
155 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
156 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500XGL,
157 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
158 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO_M64,
159 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
160 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_200,
161 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
162 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_550XGL,
163 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
164 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500_GOGL,
165 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
166 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_IGEFORCE2,
167 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
168 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3,
169 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
170 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_1,
171 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
172 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_2,
173 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
174 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_DDC,
175 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
176 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4600,
177 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
178 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4400,
179 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
180 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4200,
181 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
182 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_900XGL,
183 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
184 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_750XGL,
185 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
186 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_700XGL,
187 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
188 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO_5200,
189 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
190 { 0, } /* terminate list */
191};
192MODULE_DEVICE_TABLE(pci, rivafb_pci_tbl);
193
194/* ------------------------------------------------------------------------- *
195 *
196 * global variables
197 *
198 * ------------------------------------------------------------------------- */
199
200/* command line data, set in rivafb_setup() */
48c68c4f
GKH		 201static int flatpanel = -1; /* Autodetect later */
202static int forceCRTC = -1;
203static bool noaccel = 0;
48c68c4f 204static bool nomtrr = 0;
202d4e60 205#ifdef CONFIG_PMAC_BACKLIGHT
48c68c4f 206static int backlight = 1;
202d4e60 207#else
48c68c4f 208static int backlight = 0;
202d4e60 209#endif
1da177e4 210
48c68c4f 211static char *mode_option = NULL;
90ab5ee9 212static bool strictmode = 0;
1da177e4 213
48c68c4f 214static struct fb_fix_screeninfo rivafb_fix = {
1da177e4
LT		 215 .type = FB_TYPE_PACKED_PIXELS,
216 .xpanstep = 1,
217 .ypanstep = 1,
218};
219
48c68c4f 220static struct fb_var_screeninfo rivafb_default_var = {
1da177e4
LT		 221 .xres = 640,
222 .yres = 480,
223 .xres_virtual = 640,
224 .yres_virtual = 480,
225 .bits_per_pixel = 8,
226 .red = {0, 8, 0},
227 .green = {0, 8, 0},
228 .blue = {0, 8, 0},
229 .transp = {0, 0, 0},
230 .activate = FB_ACTIVATE_NOW,
231 .height = -1,
232 .width = -1,
233 .pixclock = 39721,
234 .left_margin = 40,
235 .right_margin = 24,
236 .upper_margin = 32,
237 .lower_margin = 11,
238 .hsync_len = 96,
239 .vsync_len = 2,
240 .vmode = FB_VMODE_NONINTERLACED
241};
242
243/* from GGI */
244static const struct riva_regs reg_template = {
245 {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* ATTR */
246 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
247 0x41, 0x01, 0x0F, 0x00, 0x00},
248 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* CRT */
249 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00,
250 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, /* 0x10 */
251 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
252 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20 */
253 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
254 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30 */
255 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
256 0x00, /* 0x40 */
257 },
258 {0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, /* GRA */
259 0xFF},
260 {0x03, 0x01, 0x0F, 0x00, 0x0E}, /* SEQ */
261 0xEB /* MISC */
262};
263
264/*
265 * Backlight control
266 */
5474c120
MH		 267#ifdef CONFIG_FB_RIVA_BACKLIGHT
268/* We do not have any information about which values are allowed, thus
269 * we used safe values.
270 */
271#define MIN_LEVEL 0x158
272#define MAX_LEVEL 0x534
e01af038 273#define LEVEL_STEP ((MAX_LEVEL - MIN_LEVEL) / FB_BACKLIGHT_MAX)
1da177e4 274
5474c120
MH		 275static int riva_bl_get_level_brightness(struct riva_par *par,
276 int level)
277{
278 struct fb_info *info = pci_get_drvdata(par->pdev);
279 int nlevel;
280
281 /* Get and convert the value */
37ce69a5 282 /* No locking on bl_curve since accessing a single value */
e01af038 283 nlevel = MIN_LEVEL + info->bl_curve[level] * LEVEL_STEP;
5474c120
MH		 284
285 if (nlevel < 0)
286 nlevel = 0;
287 else if (nlevel < MIN_LEVEL)
288 nlevel = MIN_LEVEL;
289 else if (nlevel > MAX_LEVEL)
290 nlevel = MAX_LEVEL;
291
292 return nlevel;
293}
294
37ce69a5 295static int riva_bl_update_status(struct backlight_device *bd)
5474c120 296{
655bfd7a 297 struct riva_par *par = bl_get_data(bd);
5474c120
MH		 298 U032 tmp_pcrt, tmp_pmc;
299 int level;
300
599a52d1
RP		 301 if (bd->props.power != FB_BLANK_UNBLANK ||
302 bd->props.fb_blank != FB_BLANK_UNBLANK)
5474c120
MH		 303 level = 0;
304 else
599a52d1 305 level = bd->props.brightness;
5474c120 306
895bf69b
AD		 307 tmp_pmc = NV_RD32(par->riva.PMC, 0x10F0) & 0x0000FFFF;
308 tmp_pcrt = NV_RD32(par->riva.PCRTC0, 0x081C) & 0xFFFFFFFC;
5474c120
MH		 309 if(level > 0) {
310 tmp_pcrt |= 0x1;
311 tmp_pmc |= (1 << 31); /* backlight bit */
312 tmp_pmc |= riva_bl_get_level_brightness(par, level) << 16; /* level */
313 }
895bf69b
AD		 314 NV_WR32(par->riva.PCRTC0, 0x081C, tmp_pcrt);
315 NV_WR32(par->riva.PMC, 0x10F0, tmp_pmc);
5474c120
MH		 316
317 return 0;
318}
319
acc2472e 320static const struct backlight_ops riva_bl_ops = {
5474c120 321 .update_status = riva_bl_update_status,
1da177e4 322};
5474c120
MH		 323
324static void riva_bl_init(struct riva_par *par)
325{
a19a6ee6 326 struct backlight_properties props;
5474c120
MH		 327 struct fb_info *info = pci_get_drvdata(par->pdev);
328 struct backlight_device *bd;
329 char name[12];
330
331 if (!par->FlatPanel)
332 return;
333
334#ifdef CONFIG_PMAC_BACKLIGHT
335 if (!machine_is(powermac) ||
336 !pmac_has_backlight_type("mnca"))
337 return;
338#endif
339
340 snprintf(name, sizeof(name), "rivabl%d", info->node);
341
a19a6ee6 342 memset(&props, 0, sizeof(struct backlight_properties));
bb7ca747 343 props.type = BACKLIGHT_RAW;
a19a6ee6
MG		 344 props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
345 bd = backlight_device_register(name, info->dev, par, &riva_bl_ops,
346 &props);
5474c120
MH		 347 if (IS_ERR(bd)) {
348 info->bl_dev = NULL;
98a3c781 349 printk(KERN_WARNING "riva: Backlight registration failed\n");
5474c120
MH		 350 goto error;
351 }
352
5474c120
MH		 353 info->bl_dev = bd;
354 fb_bl_default_curve(info, 0,
535a09ad
GG		 355 MIN_LEVEL * FB_BACKLIGHT_MAX / MAX_LEVEL,
356 FB_BACKLIGHT_MAX);
5474c120 357
cee9e8c5 358 bd->props.brightness = bd->props.max_brightness;
599a52d1 359 bd->props.power = FB_BLANK_UNBLANK;
28ee086d 360 backlight_update_status(bd);
5474c120 361
5474c120
MH		 362 printk("riva: Backlight initialized (%s)\n", name);
363
364 return;
365
366error:
367 return;
368}
369
37ce69a5 370static void riva_bl_exit(struct fb_info *info)
5474c120 371{
37ce69a5 372 struct backlight_device *bd = info->bl_dev;
5474c120 373
321709c5
RP		 374 backlight_device_unregister(bd);
375 printk("riva: Backlight unloaded\n");
5474c120
MH		 376}
377#else
378static inline void riva_bl_init(struct riva_par *par) {}
37ce69a5 379static inline void riva_bl_exit(struct fb_info *info) {}
5474c120 380#endif /* CONFIG_FB_RIVA_BACKLIGHT */
1da177e4
LT		 381
382/* ------------------------------------------------------------------------- *
383 *
384 * MMIO access macros
385 *
386 * ------------------------------------------------------------------------- */
387
388static inline void CRTCout(struct riva_par *par, unsigned char index,
389 unsigned char val)
390{
391 VGA_WR08(par->riva.PCIO, 0x3d4, index);
392 VGA_WR08(par->riva.PCIO, 0x3d5, val);
393}
394
395static inline unsigned char CRTCin(struct riva_par *par,
396 unsigned char index)
397{
398 VGA_WR08(par->riva.PCIO, 0x3d4, index);
399 return (VGA_RD08(par->riva.PCIO, 0x3d5));
400}
401
402static inline void GRAout(struct riva_par *par, unsigned char index,
403 unsigned char val)
404{
405 VGA_WR08(par->riva.PVIO, 0x3ce, index);
406 VGA_WR08(par->riva.PVIO, 0x3cf, val);
407}
408
409static inline unsigned char GRAin(struct riva_par *par,
410 unsigned char index)
411{
412 VGA_WR08(par->riva.PVIO, 0x3ce, index);
413 return (VGA_RD08(par->riva.PVIO, 0x3cf));
414}
415
416static inline void SEQout(struct riva_par *par, unsigned char index,
417 unsigned char val)
418{
419 VGA_WR08(par->riva.PVIO, 0x3c4, index);
420 VGA_WR08(par->riva.PVIO, 0x3c5, val);
421}
422
423static inline unsigned char SEQin(struct riva_par *par,
424 unsigned char index)
425{
426 VGA_WR08(par->riva.PVIO, 0x3c4, index);
427 return (VGA_RD08(par->riva.PVIO, 0x3c5));
428}
429
430static inline void ATTRout(struct riva_par *par, unsigned char index,
431 unsigned char val)
432{
433 VGA_WR08(par->riva.PCIO, 0x3c0, index);
434 VGA_WR08(par->riva.PCIO, 0x3c0, val);
435}
436
437static inline unsigned char ATTRin(struct riva_par *par,
438 unsigned char index)
439{
440 VGA_WR08(par->riva.PCIO, 0x3c0, index);
441 return (VGA_RD08(par->riva.PCIO, 0x3c1));
442}
443
444static inline void MISCout(struct riva_par *par, unsigned char val)
445{
446 VGA_WR08(par->riva.PVIO, 0x3c2, val);
447}
448
449static inline unsigned char MISCin(struct riva_par *par)
450{
451 return (VGA_RD08(par->riva.PVIO, 0x3cc));
452}
453
1da177e4
LT		 454static inline void reverse_order(u32 *l)
455{
456 u8 *a = (u8 *)l;
1c667682
AM		 457 a[0] = bitrev8(a[0]);
458 a[1] = bitrev8(a[1]);
459 a[2] = bitrev8(a[2]);
460 a[3] = bitrev8(a[3]);
1da177e4
LT		 461}
462
463/* ------------------------------------------------------------------------- *
464 *
465 * cursor stuff
466 *
467 * ------------------------------------------------------------------------- */
468
469/**
470 * rivafb_load_cursor_image - load cursor image to hardware
471 * @data: address to monochrome bitmap (1 = foreground color, 0 = background)
472 * @par: pointer to private data
473 * @w: width of cursor image in pixels
474 * @h: height of cursor image in scanlines
475 * @bg: background color (ARGB1555) - alpha bit determines opacity
476 * @fg: foreground color (ARGB1555)
477 *
478 * DESCRIPTiON:
479 * Loads cursor image based on a monochrome source and mask bitmap. The
480 * image bits determines the color of the pixel, 0 for background, 1 for
481 * foreground. Only the affected region (as determined by @w and @h
482 * parameters) will be updated.
483 *
484 * CALLED FROM:
485 * rivafb_cursor()
486 */
487static void rivafb_load_cursor_image(struct riva_par *par, u8 *data8,
488 u16 bg, u16 fg, u32 w, u32 h)
489{
490 int i, j, k = 0;
491 u32 b, tmp;
492 u32 *data = (u32 *)data8;
493 bg = le16_to_cpu(bg);
494 fg = le16_to_cpu(fg);
495
496 w = (w + 1) & ~1;
497
498 for (i = 0; i < h; i++) {
499 b = *data++;
500 reverse_order(&b);
501
502 for (j = 0; j < w/2; j++) {
503 tmp = 0;
504#if defined (__BIG_ENDIAN)
505 tmp = (b & (1 << 31)) ? fg << 16 : bg << 16;
506 b <<= 1;
507 tmp |= (b & (1 << 31)) ? fg : bg;
508 b <<= 1;
509#else
510 tmp = (b & 1) ? fg : bg;
511 b >>= 1;
512 tmp |= (b & 1) ? fg << 16 : bg << 16;
513 b >>= 1;
514#endif
515 writel(tmp, &par->riva.CURSOR[k++]);
516 }
517 k += (MAX_CURS - w)/2;
518 }
519}
520
521/* ------------------------------------------------------------------------- *
522 *
523 * general utility functions
524 *
525 * ------------------------------------------------------------------------- */
526
527/**
528 * riva_wclut - set CLUT entry
529 * @chip: pointer to RIVA_HW_INST object
530 * @regnum: register number
531 * @red: red component
532 * @green: green component
533 * @blue: blue component
534 *
535 * DESCRIPTION:
536 * Sets color register @regnum.
537 *
538 * CALLED FROM:
539 * rivafb_setcolreg()
540 */
541static void riva_wclut(RIVA_HW_INST *chip,
542 unsigned char regnum, unsigned char red,
543 unsigned char green, unsigned char blue)
544{
545 VGA_WR08(chip->PDIO, 0x3c8, regnum);
546 VGA_WR08(chip->PDIO, 0x3c9, red);
547 VGA_WR08(chip->PDIO, 0x3c9, green);
548 VGA_WR08(chip->PDIO, 0x3c9, blue);
549}
550
551/**
552 * riva_rclut - read fromCLUT register
553 * @chip: pointer to RIVA_HW_INST object
554 * @regnum: register number
555 * @red: red component
556 * @green: green component
557 * @blue: blue component
558 *
559 * DESCRIPTION:
560 * Reads red, green, and blue from color register @regnum.
561 *
562 * CALLED FROM:
563 * rivafb_setcolreg()
564 */
565static void riva_rclut(RIVA_HW_INST *chip,
566 unsigned char regnum, unsigned char *red,
567 unsigned char *green, unsigned char *blue)
568{
569
570 VGA_WR08(chip->PDIO, 0x3c7, regnum);
571 *red = VGA_RD08(chip->PDIO, 0x3c9);
572 *green = VGA_RD08(chip->PDIO, 0x3c9);
573 *blue = VGA_RD08(chip->PDIO, 0x3c9);
574}
575
576/**
577 * riva_save_state - saves current chip state
578 * @par: pointer to riva_par object containing info for current riva board
579 * @regs: pointer to riva_regs object
580 *
581 * DESCRIPTION:
582 * Saves current chip state to @regs.
583 *
584 * CALLED FROM:
585 * rivafb_probe()
586 */
587/* from GGI */
588static void riva_save_state(struct riva_par *par, struct riva_regs *regs)
589{
590 int i;
591
592 NVTRACE_ENTER();
593 par->riva.LockUnlock(&par->riva, 0);
594
595 par->riva.UnloadStateExt(&par->riva, &regs->ext);
596
597 regs->misc_output = MISCin(par);
598
599 for (i = 0; i < NUM_CRT_REGS; i++)
600 regs->crtc[i] = CRTCin(par, i);
601
602 for (i = 0; i < NUM_ATC_REGS; i++)
603 regs->attr[i] = ATTRin(par, i);
604
605 for (i = 0; i < NUM_GRC_REGS; i++)
606 regs->gra[i] = GRAin(par, i);
607
608 for (i = 0; i < NUM_SEQ_REGS; i++)
609 regs->seq[i] = SEQin(par, i);
610 NVTRACE_LEAVE();
611}
612
613/**
614 * riva_load_state - loads current chip state
615 * @par: pointer to riva_par object containing info for current riva board
616 * @regs: pointer to riva_regs object
617 *
618 * DESCRIPTION:
619 * Loads chip state from @regs.
620 *
621 * CALLED FROM:
622 * riva_load_video_mode()
623 * rivafb_probe()
624 * rivafb_remove()
625 */
626/* from GGI */
627static void riva_load_state(struct riva_par *par, struct riva_regs *regs)
628{
629 RIVA_HW_STATE *state = &regs->ext;
630 int i;
631
632 NVTRACE_ENTER();
633 CRTCout(par, 0x11, 0x00);
634
635 par->riva.LockUnlock(&par->riva, 0);
636
637 par->riva.LoadStateExt(&par->riva, state);
638
639 MISCout(par, regs->misc_output);
640
641 for (i = 0; i < NUM_CRT_REGS; i++) {
642 switch (i) {
643 case 0x19:
644 case 0x20 ... 0x40:
645 break;
646 default:
647 CRTCout(par, i, regs->crtc[i]);
648 }
649 }
650
651 for (i = 0; i < NUM_ATC_REGS; i++)
652 ATTRout(par, i, regs->attr[i]);
653
654 for (i = 0; i < NUM_GRC_REGS; i++)
655 GRAout(par, i, regs->gra[i]);
656
657 for (i = 0; i < NUM_SEQ_REGS; i++)
658 SEQout(par, i, regs->seq[i]);
659 NVTRACE_LEAVE();
660}
661
662/**
663 * riva_load_video_mode - calculate timings
664 * @info: pointer to fb_info object containing info for current riva board
665 *
666 * DESCRIPTION:
667 * Calculate some timings and then send em off to riva_load_state().
668 *
669 * CALLED FROM:
670 * rivafb_set_par()
671 */
fd717689 672static int riva_load_video_mode(struct fb_info *info)
1da177e4
LT		 673{
674 int bpp, width, hDisplaySize, hDisplay, hStart,
675 hEnd, hTotal, height, vDisplay, vStart, vEnd, vTotal, dotClock;
676 int hBlankStart, hBlankEnd, vBlankStart, vBlankEnd;
fd717689 677 int rc;
f4a41836 678 struct riva_par *par = info->par;
1da177e4
LT		 679 struct riva_regs newmode;
680
681 NVTRACE_ENTER();
682 /* time to calculate */
535a09ad 683 rivafb_blank(FB_BLANK_NORMAL, info);
1da177e4
LT		 684
685 bpp = info->var.bits_per_pixel;
686 if (bpp == 16 && info->var.green.length == 5)
687 bpp = 15;
688 width = info->var.xres_virtual;
689 hDisplaySize = info->var.xres;
690 hDisplay = (hDisplaySize / 8) - 1;
691 hStart = (hDisplaySize + info->var.right_margin) / 8 - 1;
692 hEnd = (hDisplaySize + info->var.right_margin +
693 info->var.hsync_len) / 8 - 1;
694 hTotal = (hDisplaySize + info->var.right_margin +
695 info->var.hsync_len + info->var.left_margin) / 8 - 5;
696 hBlankStart = hDisplay;
697 hBlankEnd = hTotal + 4;
698
699 height = info->var.yres_virtual;
700 vDisplay = info->var.yres - 1;
701 vStart = info->var.yres + info->var.lower_margin - 1;
702 vEnd = info->var.yres + info->var.lower_margin +
703 info->var.vsync_len - 1;
704 vTotal = info->var.yres + info->var.lower_margin +
705 info->var.vsync_len + info->var.upper_margin + 2;
706 vBlankStart = vDisplay;
707 vBlankEnd = vTotal + 1;
708 dotClock = 1000000000 / info->var.pixclock;
709
710 memcpy(&newmode, &reg_template, sizeof(struct riva_regs));
711
712 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED)
713 vTotal |= 1;
714
715 if (par->FlatPanel) {
716 vStart = vTotal - 3;
717 vEnd = vTotal - 2;
718 vBlankStart = vStart;
719 hStart = hTotal - 3;
720 hEnd = hTotal - 2;
721 hBlankEnd = hTotal + 4;
722 }
723
724 newmode.crtc[0x0] = Set8Bits (hTotal);
725 newmode.crtc[0x1] = Set8Bits (hDisplay);
726 newmode.crtc[0x2] = Set8Bits (hBlankStart);
727 newmode.crtc[0x3] = SetBitField (hBlankEnd, 4: 0, 4:0) | SetBit (7);
728 newmode.crtc[0x4] = Set8Bits (hStart);
729 newmode.crtc[0x5] = SetBitField (hBlankEnd, 5: 5, 7:7)
730 | SetBitField (hEnd, 4: 0, 4:0);
731 newmode.crtc[0x6] = SetBitField (vTotal, 7: 0, 7:0);
732 newmode.crtc[0x7] = SetBitField (vTotal, 8: 8, 0:0)
733 | SetBitField (vDisplay, 8: 8, 1:1)
734 | SetBitField (vStart, 8: 8, 2:2)
735 | SetBitField (vBlankStart, 8: 8, 3:3)
736 | SetBit (4)
737 | SetBitField (vTotal, 9: 9, 5:5)
738 | SetBitField (vDisplay, 9: 9, 6:6)
739 | SetBitField (vStart, 9: 9, 7:7);
740 newmode.crtc[0x9] = SetBitField (vBlankStart, 9: 9, 5:5)
741 | SetBit (6);
742 newmode.crtc[0x10] = Set8Bits (vStart);
743 newmode.crtc[0x11] = SetBitField (vEnd, 3: 0, 3:0)
744 | SetBit (5);
745 newmode.crtc[0x12] = Set8Bits (vDisplay);
746 newmode.crtc[0x13] = (width / 8) * ((bpp + 1) / 8);
747 newmode.crtc[0x15] = Set8Bits (vBlankStart);
748 newmode.crtc[0x16] = Set8Bits (vBlankEnd);
749
750 newmode.ext.screen = SetBitField(hBlankEnd,6:6,4:4)
751 | SetBitField(vBlankStart,10:10,3:3)
752 | SetBitField(vStart,10:10,2:2)
753 | SetBitField(vDisplay,10:10,1:1)
754 | SetBitField(vTotal,10:10,0:0);
755 newmode.ext.horiz = SetBitField(hTotal,8:8,0:0)
756 | SetBitField(hDisplay,8:8,1:1)
757 | SetBitField(hBlankStart,8:8,2:2)
758 | SetBitField(hStart,8:8,3:3);
759 newmode.ext.extra = SetBitField(vTotal,11:11,0:0)
760 | SetBitField(vDisplay,11:11,2:2)
761 | SetBitField(vStart,11:11,4:4)
762 | SetBitField(vBlankStart,11:11,6:6);
763
764 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
765 int tmp = (hTotal >> 1) & ~1;
766 newmode.ext.interlace = Set8Bits(tmp);
767 newmode.ext.horiz |= SetBitField(tmp, 8:8,4:4);
768 } else
769 newmode.ext.interlace = 0xff; /* interlace off */
770
771 if (par->riva.Architecture >= NV_ARCH_10)
772 par->riva.CURSOR = (U032 __iomem *)(info->screen_base + par->riva.CursorStart);
773
774 if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
775 newmode.misc_output &= ~0x40;
776 else
777 newmode.misc_output |= 0x40;
778 if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
779 newmode.misc_output &= ~0x80;
780 else
781 newmode.misc_output |= 0x80;
782
e2281080 783 rc = CalcStateExt(&par->riva, &newmode.ext, par->pdev, bpp, width,
fd717689
JG		 784 hDisplaySize, height, dotClock);
785 if (rc)
786 goto out;
1da177e4
LT		 787
788 newmode.ext.scale = NV_RD32(par->riva.PRAMDAC, 0x00000848) &
789 0xfff000ff;
790 if (par->FlatPanel == 1) {
791 newmode.ext.pixel |= (1 << 7);
792 newmode.ext.scale |= (1 << 8);
793 }
794 if (par->SecondCRTC) {
795 newmode.ext.head = NV_RD32(par->riva.PCRTC0, 0x00000860) &
796 ~0x00001000;
797 newmode.ext.head2 = NV_RD32(par->riva.PCRTC0, 0x00002860) |
798 0x00001000;
799 newmode.ext.crtcOwner = 3;
800 newmode.ext.pllsel |= 0x20000800;
801 newmode.ext.vpll2 = newmode.ext.vpll;
802 } else if (par->riva.twoHeads) {
803 newmode.ext.head = NV_RD32(par->riva.PCRTC0, 0x00000860) |
804 0x00001000;
805 newmode.ext.head2 = NV_RD32(par->riva.PCRTC0, 0x00002860) &
806 ~0x00001000;
807 newmode.ext.crtcOwner = 0;
808 newmode.ext.vpll2 = NV_RD32(par->riva.PRAMDAC0, 0x00000520);
809 }
810 if (par->FlatPanel == 1) {
811 newmode.ext.pixel |= (1 << 7);
812 newmode.ext.scale |= (1 << 8);
813 }
814 newmode.ext.cursorConfig = 0x02000100;
815 par->current_state = newmode;
816 riva_load_state(par, &par->current_state);
817 par->riva.LockUnlock(&par->riva, 0); /* important for HW cursor */
fd717689
JG		 818
819out:
535a09ad 820 rivafb_blank(FB_BLANK_UNBLANK, info);
1da177e4 821 NVTRACE_LEAVE();
fd717689
JG		 822
823 return rc;
1da177e4
LT		 824}
825
9791d763
GU		 826static void riva_update_var(struct fb_var_screeninfo *var,
827 const struct fb_videomode *modedb)
1da177e4
LT		 828{
829 NVTRACE_ENTER();
830 var->xres = var->xres_virtual = modedb->xres;
831 var->yres = modedb->yres;
832 if (var->yres_virtual < var->yres)
833 var->yres_virtual = var->yres;
834 var->xoffset = var->yoffset = 0;
835 var->pixclock = modedb->pixclock;
836 var->left_margin = modedb->left_margin;
837 var->right_margin = modedb->right_margin;
838 var->upper_margin = modedb->upper_margin;
839 var->lower_margin = modedb->lower_margin;
840 var->hsync_len = modedb->hsync_len;
841 var->vsync_len = modedb->vsync_len;
842 var->sync = modedb->sync;
843 var->vmode = modedb->vmode;
844 NVTRACE_LEAVE();
845}
846
847/**
848 * rivafb_do_maximize -
849 * @info: pointer to fb_info object containing info for current riva board
850 * @var:
851 * @nom:
852 * @den:
853 *
854 * DESCRIPTION:
855 * .
856 *
857 * RETURNS:
858 * -EINVAL on failure, 0 on success
859 *
860 *
861 * CALLED FROM:
862 * rivafb_check_var()
863 */
864static int rivafb_do_maximize(struct fb_info *info,
865 struct fb_var_screeninfo *var,
866 int nom, int den)
867{
868 static struct {
869 int xres, yres;
870 } modes[] = {
871 {1600, 1280},
872 {1280, 1024},
873 {1024, 768},
874 {800, 600},
875 {640, 480},
876 {-1, -1}
877 };
878 int i;
879
880 NVTRACE_ENTER();
881 /* use highest possible virtual resolution */
882 if (var->xres_virtual == -1 && var->yres_virtual == -1) {
883 printk(KERN_WARNING PFX
884 "using maximum available virtual resolution\n");
885 for (i = 0; modes[i].xres != -1; i++) {
886 if (modes[i].xres * nom / den * modes[i].yres <
887 info->fix.smem_len)
888 break;
889 }
890 if (modes[i].xres == -1) {
891 printk(KERN_ERR PFX
892 "could not find a virtual resolution that fits into video memory!!\n");
893 NVTRACE("EXIT - EINVAL error\n");
894 return -EINVAL;
895 }
896 var->xres_virtual = modes[i].xres;
897 var->yres_virtual = modes[i].yres;
898
899 printk(KERN_INFO PFX
900 "virtual resolution set to maximum of %dx%d\n",
901 var->xres_virtual, var->yres_virtual);
902 } else if (var->xres_virtual == -1) {
903 var->xres_virtual = (info->fix.smem_len * den /
904 (nom * var->yres_virtual)) & ~15;
905 printk(KERN_WARNING PFX
906 "setting virtual X resolution to %d\n", var->xres_virtual);
907 } else if (var->yres_virtual == -1) {
908 var->xres_virtual = (var->xres_virtual + 15) & ~15;
909 var->yres_virtual = info->fix.smem_len * den /
910 (nom * var->xres_virtual);
911 printk(KERN_WARNING PFX
912 "setting virtual Y resolution to %d\n", var->yres_virtual);
913 } else {
914 var->xres_virtual = (var->xres_virtual + 15) & ~15;
915 if (var->xres_virtual * nom / den * var->yres_virtual > info->fix.smem_len) {
916 printk(KERN_ERR PFX
917 "mode %dx%dx%d rejected...resolution too high to fit into video memory!\n",
918 var->xres, var->yres, var->bits_per_pixel);
919 NVTRACE("EXIT - EINVAL error\n");
920 return -EINVAL;
921 }
922 }
923
924 if (var->xres_virtual * nom / den >= 8192) {
925 printk(KERN_WARNING PFX
926 "virtual X resolution (%d) is too high, lowering to %d\n",
927 var->xres_virtual, 8192 * den / nom - 16);
928 var->xres_virtual = 8192 * den / nom - 16;
929 }
930
931 if (var->xres_virtual < var->xres) {
932 printk(KERN_ERR PFX
933 "virtual X resolution (%d) is smaller than real\n", var->xres_virtual);
934 return -EINVAL;
935 }
936
937 if (var->yres_virtual < var->yres) {
938 printk(KERN_ERR PFX
939 "virtual Y resolution (%d) is smaller than real\n", var->yres_virtual);
940 return -EINVAL;
941 }
942 if (var->yres_virtual > 0x7fff/nom)
943 var->yres_virtual = 0x7fff/nom;
944 if (var->xres_virtual > 0x7fff/nom)
945 var->xres_virtual = 0x7fff/nom;
946 NVTRACE_LEAVE();
947 return 0;
948}
949
950static void
951riva_set_pattern(struct riva_par *par, int clr0, int clr1, int pat0, int pat1)
952{
953 RIVA_FIFO_FREE(par->riva, Patt, 4);
954 NV_WR32(&par->riva.Patt->Color0, 0, clr0);
955 NV_WR32(&par->riva.Patt->Color1, 0, clr1);
956 NV_WR32(par->riva.Patt->Monochrome, 0, pat0);
957 NV_WR32(par->riva.Patt->Monochrome, 4, pat1);
958}
959
960/* acceleration routines */
961static inline void wait_for_idle(struct riva_par *par)
962{
963 while (par->riva.Busy(&par->riva));
964}
965
966/*
967 * Set ROP. Translate X rop into ROP3. Internal routine.
968 */
969static void
970riva_set_rop_solid(struct riva_par *par, int rop)
971{
972 riva_set_pattern(par, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
973 RIVA_FIFO_FREE(par->riva, Rop, 1);
974 NV_WR32(&par->riva.Rop->Rop3, 0, rop);
975
976}
977
978static void riva_setup_accel(struct fb_info *info)
979{
f4a41836 980 struct riva_par *par = info->par;
1da177e4
LT		 981
982 RIVA_FIFO_FREE(par->riva, Clip, 2);
983 NV_WR32(&par->riva.Clip->TopLeft, 0, 0x0);
984 NV_WR32(&par->riva.Clip->WidthHeight, 0,
985 (info->var.xres_virtual & 0xffff) |
986 (info->var.yres_virtual << 16));
987 riva_set_rop_solid(par, 0xcc);
988 wait_for_idle(par);
989}
990
991/**
992 * riva_get_cmap_len - query current color map length
993 * @var: standard kernel fb changeable data
994 *
995 * DESCRIPTION:
996 * Get current color map length.
997 *
998 * RETURNS:
999 * Length of color map
1000 *
1001 * CALLED FROM:
1002 * rivafb_setcolreg()
1003 */
1004static int riva_get_cmap_len(const struct fb_var_screeninfo *var)
1005{
1006 int rc = 256; /* reasonable default */
1007
1008 switch (var->green.length) {
1009 case 8:
1010 rc = 256; /* 256 entries (2^8), 8 bpp and RGB8888 */
1011 break;
1012 case 5:
1013 rc = 32; /* 32 entries (2^5), 16 bpp, RGB555 */
1014 break;
1015 case 6:
1016 rc = 64; /* 64 entries (2^6), 16 bpp, RGB565 */
1017 break;
1018 default:
1019 /* should not occur */
1020 break;
1021 }
1022 return rc;
1023}
1024
1da177e4
LT		 1025/* ------------------------------------------------------------------------- *
1026 *
1027 * framebuffer operations
1028 *
1029 * ------------------------------------------------------------------------- */
1030
1031static int rivafb_open(struct fb_info *info, int user)
1032{
f4a41836 1033 struct riva_par *par = info->par;
1da177e4
LT		 1034
1035 NVTRACE_ENTER();
c4f28e54
JS		 1036 mutex_lock(&par->open_lock);
1037 if (!par->ref_count) {
1da177e4
LT		 1038#ifdef CONFIG_X86
1039 memset(&par->state, 0, sizeof(struct vgastate));
1040 par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS;
1041 /* save the DAC for Riva128 */
1042 if (par->riva.Architecture == NV_ARCH_03)
1043 par->state.flags |= VGA_SAVE_CMAP;
1044 save_vga(&par->state);
1045#endif
1046 /* vgaHWunlock() + riva unlock (0x7F) */
1047 CRTCout(par, 0x11, 0xFF);
1048 par->riva.LockUnlock(&par->riva, 0);
1049
1050 riva_save_state(par, &par->initial_state);
1051 }
c4f28e54
JS		 1052 par->ref_count++;
1053 mutex_unlock(&par->open_lock);
1da177e4
LT		 1054 NVTRACE_LEAVE();
1055 return 0;
1056}
1057
1058static int rivafb_release(struct fb_info *info, int user)
1059{
f4a41836 1060 struct riva_par *par = info->par;
1da177e4
LT		 1061
1062 NVTRACE_ENTER();
c4f28e54
JS		 1063 mutex_lock(&par->open_lock);
1064 if (!par->ref_count) {
1065 mutex_unlock(&par->open_lock);
1da177e4 1066 return -EINVAL;
c4f28e54
JS		 1067 }
1068 if (par->ref_count == 1) {
1da177e4
LT		 1069 par->riva.LockUnlock(&par->riva, 0);
1070 par->riva.LoadStateExt(&par->riva, &par->initial_state.ext);
1071 riva_load_state(par, &par->initial_state);
1072#ifdef CONFIG_X86
1073 restore_vga(&par->state);
1074#endif
1075 par->riva.LockUnlock(&par->riva, 1);
1076 }
c4f28e54
JS		 1077 par->ref_count--;
1078 mutex_unlock(&par->open_lock);
1da177e4
LT		 1079 NVTRACE_LEAVE();
1080 return 0;
1081}
1082
1083static int rivafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1084{
9791d763 1085 const struct fb_videomode *mode;
f4a41836 1086 struct riva_par *par = info->par;
1da177e4
LT		 1087 int nom, den; /* translating from pixels->bytes */
1088 int mode_valid = 0;
1089
1090 NVTRACE_ENTER();
1091 switch (var->bits_per_pixel) {
1092 case 1 ... 8:
1093 var->red.offset = var->green.offset = var->blue.offset = 0;
1094 var->red.length = var->green.length = var->blue.length = 8;
1095 var->bits_per_pixel = 8;
1096 nom = den = 1;
1097 break;
1098 case 9 ... 15:
1099 var->green.length = 5;
1100 /* fall through */
1101 case 16:
1102 var->bits_per_pixel = 16;
1103 /* The Riva128 supports RGB555 only */
1104 if (par->riva.Architecture == NV_ARCH_03)
1105 var->green.length = 5;
1106 if (var->green.length == 5) {
1107 /* 0rrrrrgg gggbbbbb */
1108 var->red.offset = 10;
1109 var->green.offset = 5;
1110 var->blue.offset = 0;
1111 var->red.length = 5;
1112 var->green.length = 5;
1113 var->blue.length = 5;
1114 } else {
1115 /* rrrrrggg gggbbbbb */
1116 var->red.offset = 11;
1117 var->green.offset = 5;
1118 var->blue.offset = 0;
1119 var->red.length = 5;
1120 var->green.length = 6;
1121 var->blue.length = 5;
1122 }
1123 nom = 2;
1124 den = 1;
1125 break;
1126 case 17 ... 32:
1127 var->red.length = var->green.length = var->blue.length = 8;
1128 var->bits_per_pixel = 32;
1129 var->red.offset = 16;
1130 var->green.offset = 8;
1131 var->blue.offset = 0;
1132 nom = 4;
1133 den = 1;
1134 break;
1135 default:
1136 printk(KERN_ERR PFX
1137 "mode %dx%dx%d rejected...color depth not supported.\n",
1138 var->xres, var->yres, var->bits_per_pixel);
1139 NVTRACE("EXIT, returning -EINVAL\n");
1140 return -EINVAL;
1141 }
1142
1143 if (!strictmode) {
1144 if (!info->monspecs.vfmax || !info->monspecs.hfmax ||
1145 !info->monspecs.dclkmax || !fb_validate_mode(var, info))
1146 mode_valid = 1;
1147 }
1148
1149 /* calculate modeline if supported by monitor */
1150 if (!mode_valid && info->monspecs.gtf) {
1151 if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info))
1152 mode_valid = 1;
1153 }
1154
1155 if (!mode_valid) {
1156 mode = fb_find_best_mode(var, &info->modelist);
1157 if (mode) {
1158 riva_update_var(var, mode);
1159 mode_valid = 1;
1160 }
1161 }
1162
1163 if (!mode_valid && info->monspecs.modedb_len)
1164 return -EINVAL;
1165
1166 if (var->xres_virtual < var->xres)
1167 var->xres_virtual = var->xres;
1168 if (var->yres_virtual <= var->yres)
1169 var->yres_virtual = -1;
1170 if (rivafb_do_maximize(info, var, nom, den) < 0)
1171 return -EINVAL;
1172
1da177e4
LT		 1173 /* truncate xoffset and yoffset to maximum if too high */
1174 if (var->xoffset > var->xres_virtual - var->xres)
1175 var->xoffset = var->xres_virtual - var->xres - 1;
1176
1177 if (var->yoffset > var->yres_virtual - var->yres)
1178 var->yoffset = var->yres_virtual - var->yres - 1;
1179
1180 var->red.msb_right =
1181 var->green.msb_right =
1182 var->blue.msb_right =
1183 var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1184 NVTRACE_LEAVE();
1185 return 0;
1186}
1187
1188static int rivafb_set_par(struct fb_info *info)
1189{
f4a41836 1190 struct riva_par *par = info->par;
fd717689 1191 int rc = 0;
1da177e4
LT		 1192
1193 NVTRACE_ENTER();
1194 /* vgaHWunlock() + riva unlock (0x7F) */
1195 CRTCout(par, 0x11, 0xFF);
1196 par->riva.LockUnlock(&par->riva, 0);
fd717689
JG		 1197 rc = riva_load_video_mode(info);
1198 if (rc)
1199 goto out;
1da177e4
LT		 1200 if(!(info->flags & FBINFO_HWACCEL_DISABLED))
1201 riva_setup_accel(info);
1202
1203 par->cursor_reset = 1;
1204 info->fix.line_length = (info->var.xres_virtual * (info->var.bits_per_pixel >> 3));
1205 info->fix.visual = (info->var.bits_per_pixel == 8) ?
1206 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
1207
1208 if (info->flags & FBINFO_HWACCEL_DISABLED)
1209 info->pixmap.scan_align = 1;
1210 else
1211 info->pixmap.scan_align = 4;
fd717689
JG		 1212
1213out:
1da177e4 1214 NVTRACE_LEAVE();
fd717689 1215 return rc;
1da177e4
LT		 1216}
1217
1218/**
1219 * rivafb_pan_display
1220 * @var: standard kernel fb changeable data
1221 * @con: TODO
1222 * @info: pointer to fb_info object containing info for current riva board
1223 *
1224 * DESCRIPTION:
1225 * Pan (or wrap, depending on the `vmode' field) the display using the
1226 * `xoffset' and `yoffset' fields of the `var' structure.
1227 * If the values don't fit, return -EINVAL.
1228 *
1229 * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
1230 */
1231static int rivafb_pan_display(struct fb_var_screeninfo *var,
1232 struct fb_info *info)
1233{
f4a41836 1234 struct riva_par *par = info->par;
1da177e4
LT		 1235 unsigned int base;
1236
1237 NVTRACE_ENTER();
1da177e4 1238 base = var->yoffset * info->fix.line_length + var->xoffset;
1da177e4 1239 par->riva.SetStartAddress(&par->riva, base);
1da177e4
LT		 1240 NVTRACE_LEAVE();
1241 return 0;
1242}
1243
1244static int rivafb_blank(int blank, struct fb_info *info)
1245{
f4a41836 1246 struct riva_par *par= info->par;
1da177e4
LT		 1247 unsigned char tmp, vesa;
1248
1249 tmp = SEQin(par, 0x01) & ~0x20; /* screen on/off */
1250 vesa = CRTCin(par, 0x1a) & ~0xc0; /* sync on/off */
1251
1252 NVTRACE_ENTER();
1253
1254 if (blank)
1255 tmp |= 0x20;
1256
1257 switch (blank) {
1258 case FB_BLANK_UNBLANK:
1259 case FB_BLANK_NORMAL:
1260 break;
1261 case FB_BLANK_VSYNC_SUSPEND:
1262 vesa |= 0x80;
1263 break;
1264 case FB_BLANK_HSYNC_SUSPEND:
1265 vesa |= 0x40;
1266 break;
1267 case FB_BLANK_POWERDOWN:
1268 vesa |= 0xc0;
1269 break;
1270 }
1271
1272 SEQout(par, 0x01, tmp);
1273 CRTCout(par, 0x1a, vesa);
1274
1da177e4
LT		 1275 NVTRACE_LEAVE();
1276
1277 return 0;
1278}
1279
1280/**
1281 * rivafb_setcolreg
1282 * @regno: register index
1283 * @red: red component
1284 * @green: green component
1285 * @blue: blue component
1286 * @transp: transparency
1287 * @info: pointer to fb_info object containing info for current riva board
1288 *
1289 * DESCRIPTION:
1290 * Set a single color register. The values supplied have a 16 bit
1291 * magnitude.
1292 *
1293 * RETURNS:
1294 * Return != 0 for invalid regno.
1295 *
1296 * CALLED FROM:
1297 * fbcmap.c:fb_set_cmap()
1298 */
1299static int rivafb_setcolreg(unsigned regno, unsigned red, unsigned green,
1300 unsigned blue, unsigned transp,
1301 struct fb_info *info)
1302{
f4a41836 1303 struct riva_par *par = info->par;
1da177e4
LT		 1304 RIVA_HW_INST *chip = &par->riva;
1305 int i;
1306
1307 if (regno >= riva_get_cmap_len(&info->var))
1308 return -EINVAL;
1309
1310 if (info->var.grayscale) {
1311 /* gray = 0.30*R + 0.59*G + 0.11*B */
1312 red = green = blue =
1313 (red * 77 + green * 151 + blue * 28) >> 8;
1314 }
1315
1316 if (regno < 16 && info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
1317 ((u32 *) info->pseudo_palette)[regno] =
1318 (regno << info->var.red.offset) |
1319 (regno << info->var.green.offset) |
1320 (regno << info->var.blue.offset);
1321 /*
1322 * The Riva128 2D engine requires color information in
1323 * TrueColor format even if framebuffer is in DirectColor
1324 */
1325 if (par->riva.Architecture == NV_ARCH_03) {
1326 switch (info->var.bits_per_pixel) {
1327 case 16:
1328 par->palette[regno] = ((red & 0xf800) >> 1) |
1329 ((green & 0xf800) >> 6) |
1330 ((blue & 0xf800) >> 11);
1331 break;
1332 case 32:
1333 par->palette[regno] = ((red & 0xff00) << 8) |
1334 ((green & 0xff00)) |
1335 ((blue & 0xff00) >> 8);
1336 break;
1337 }
1338 }
1339 }
1340
1341 switch (info->var.bits_per_pixel) {
1342 case 8:
1343 /* "transparent" stuff is completely ignored. */
1344 riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8);
1345 break;
1346 case 16:
1347 if (info->var.green.length == 5) {
1348 for (i = 0; i < 8; i++) {
1349 riva_wclut(chip, regno*8+i, red >> 8,
1350 green >> 8, blue >> 8);
1351 }
1352 } else {
1353 u8 r, g, b;
1354
1355 if (regno < 32) {
1356 for (i = 0; i < 8; i++) {
1357 riva_wclut(chip, regno*8+i,
1358 red >> 8, green >> 8,
1359 blue >> 8);
1360 }
1361 }
1362 riva_rclut(chip, regno*4, &r, &g, &b);
1363 for (i = 0; i < 4; i++)
1364 riva_wclut(chip, regno*4+i, r,
1365 green >> 8, b);
1366 }
1367 break;
1368 case 32:
1369 riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8);
1370 break;
1371 default:
1372 /* do nothing */
1373 break;
1374 }
1375 return 0;
1376}
1377
1378/**
1379 * rivafb_fillrect - hardware accelerated color fill function
1380 * @info: pointer to fb_info structure
1381 * @rect: pointer to fb_fillrect structure
1382 *
1383 * DESCRIPTION:
1384 * This function fills up a region of framebuffer memory with a solid
1385 * color with a choice of two different ROP's, copy or invert.
1386 *
1387 * CALLED FROM:
1388 * framebuffer hook
1389 */
1390static void rivafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
1391{
f4a41836 1392 struct riva_par *par = info->par;
1da177e4
LT		 1393 u_int color, rop = 0;
1394
1395 if ((info->flags & FBINFO_HWACCEL_DISABLED)) {
1396 cfb_fillrect(info, rect);
1397 return;
1398 }
1399
1400 if (info->var.bits_per_pixel == 8)
1401 color = rect->color;
1402 else {
1403 if (par->riva.Architecture != NV_ARCH_03)
1404 color = ((u32 *)info->pseudo_palette)[rect->color];
1405 else
1406 color = par->palette[rect->color];
1407 }
1408
1409 switch (rect->rop) {
1410 case ROP_XOR:
1411 rop = 0x66;
1412 break;
1413 case ROP_COPY:
1414 default:
1415 rop = 0xCC;
1416 break;
1417 }
1418
1419 riva_set_rop_solid(par, rop);
1420
1421 RIVA_FIFO_FREE(par->riva, Bitmap, 1);
1422 NV_WR32(&par->riva.Bitmap->Color1A, 0, color);
1423
1424 RIVA_FIFO_FREE(par->riva, Bitmap, 2);
1425 NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].TopLeft, 0,
1426 (rect->dx << 16) | rect->dy);
1427 mb();
1428 NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].WidthHeight, 0,
1429 (rect->width << 16) | rect->height);
1430 mb();
1431 riva_set_rop_solid(par, 0xcc);
1432
1433}
1434
1435/**
1436 * rivafb_copyarea - hardware accelerated blit function
1437 * @info: pointer to fb_info structure
1438 * @region: pointer to fb_copyarea structure
1439 *
1440 * DESCRIPTION:
1441 * This copies an area of pixels from one location to another
1442 *
1443 * CALLED FROM:
1444 * framebuffer hook
1445 */
1446static void rivafb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
1447{
f4a41836 1448 struct riva_par *par = info->par;
1da177e4
LT		 1449
1450 if ((info->flags & FBINFO_HWACCEL_DISABLED)) {
1451 cfb_copyarea(info, region);
1452 return;
1453 }
1454
1455 RIVA_FIFO_FREE(par->riva, Blt, 3);
1456 NV_WR32(&par->riva.Blt->TopLeftSrc, 0,
1457 (region->sy << 16) | region->sx);
1458 NV_WR32(&par->riva.Blt->TopLeftDst, 0,
1459 (region->dy << 16) | region->dx);
1460 mb();
1461 NV_WR32(&par->riva.Blt->WidthHeight, 0,
1462 (region->height << 16) | region->width);
1463 mb();
1464}
1465
1466static inline void convert_bgcolor_16(u32 *col)
1467{
1468 *col = ((*col & 0x0000F800) << 8)
1469 | ((*col & 0x00007E0) << 5)
1470 | ((*col & 0x0000001F) << 3)
1471 | 0xFF000000;
1472 mb();
1473}
1474
1475/**
1476 * rivafb_imageblit: hardware accelerated color expand function
1477 * @info: pointer to fb_info structure
1478 * @image: pointer to fb_image structure
1479 *
1480 * DESCRIPTION:
1481 * If the source is a monochrome bitmap, the function fills up a a region
1482 * of framebuffer memory with pixels whose color is determined by the bit
1483 * setting of the bitmap, 1 - foreground, 0 - background.
1484 *
1485 * If the source is not a monochrome bitmap, color expansion is not done.
1486 * In this case, it is channeled to a software function.
1487 *
1488 * CALLED FROM:
1489 * framebuffer hook
1490 */
1491static void rivafb_imageblit(struct fb_info *info,
1492 const struct fb_image *image)
1493{
f4a41836 1494 struct riva_par *par = info->par;
1da177e4
LT		 1495 u32 fgx = 0, bgx = 0, width, tmp;
1496 u8 *cdat = (u8 *) image->data;
1497 volatile u32 __iomem *d;
1498 int i, size;
1499
1500 if ((info->flags & FBINFO_HWACCEL_DISABLED) || image->depth != 1) {
1501 cfb_imageblit(info, image);
1502 return;
1503 }
1504
1505 switch (info->var.bits_per_pixel) {
1506 case 8:
1507 fgx = image->fg_color;
1508 bgx = image->bg_color;
1509 break;
1510 case 16:
1511 case 32:
1512 if (par->riva.Architecture != NV_ARCH_03) {
1513 fgx = ((u32 *)info->pseudo_palette)[image->fg_color];
1514 bgx = ((u32 *)info->pseudo_palette)[image->bg_color];
1515 } else {
1516 fgx = par->palette[image->fg_color];
1517 bgx = par->palette[image->bg_color];
1518 }
1519 if (info->var.green.length == 6)
1520 convert_bgcolor_16(&bgx);
1521 break;
1522 }
1523
1524 RIVA_FIFO_FREE(par->riva, Bitmap, 7);
1525 NV_WR32(&par->riva.Bitmap->ClipE.TopLeft, 0,
1526 (image->dy << 16) | (image->dx & 0xFFFF));
1527 NV_WR32(&par->riva.Bitmap->ClipE.BottomRight, 0,
1528 (((image->dy + image->height) << 16) |
1529 ((image->dx + image->width) & 0xffff)));
1530 NV_WR32(&par->riva.Bitmap->Color0E, 0, bgx);
1531 NV_WR32(&par->riva.Bitmap->Color1E, 0, fgx);
1532 NV_WR32(&par->riva.Bitmap->WidthHeightInE, 0,
1533 (image->height << 16) | ((image->width + 31) & ~31));
1534 NV_WR32(&par->riva.Bitmap->WidthHeightOutE, 0,
1535 (image->height << 16) | ((image->width + 31) & ~31));
1536 NV_WR32(&par->riva.Bitmap->PointE, 0,
1537 (image->dy << 16) | (image->dx & 0xFFFF));
1538
1539 d = &par->riva.Bitmap->MonochromeData01E;
1540
1541 width = (image->width + 31)/32;
1542 size = width * image->height;
1543 while (size >= 16) {
1544 RIVA_FIFO_FREE(par->riva, Bitmap, 16);
1545 for (i = 0; i < 16; i++) {
1546 tmp = *((u32 *)cdat);
1547 cdat = (u8 *)((u32 *)cdat + 1);
1548 reverse_order(&tmp);
1549 NV_WR32(d, i*4, tmp);
1550 }
1551 size -= 16;
1552 }
1553 if (size) {
1554 RIVA_FIFO_FREE(par->riva, Bitmap, size);
1555 for (i = 0; i < size; i++) {
1556 tmp = *((u32 *) cdat);
1557 cdat = (u8 *)((u32 *)cdat + 1);
1558 reverse_order(&tmp);
1559 NV_WR32(d, i*4, tmp);
1560 }
1561 }
1562}
1563
1564/**
1565 * rivafb_cursor - hardware cursor function
1566 * @info: pointer to info structure
1567 * @cursor: pointer to fbcursor structure
1568 *
1569 * DESCRIPTION:
1570 * A cursor function that supports displaying a cursor image via hardware.
1571 * Within the kernel, copy and invert rops are supported. If exported
1572 * to user space, only the copy rop will be supported.
1573 *
1574 * CALLED FROM
1575 * framebuffer hook
1576 */
1577static int rivafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1578{
f4a41836 1579 struct riva_par *par = info->par;
1da177e4 1580 u8 data[MAX_CURS * MAX_CURS/8];
1da177e4 1581 int i, set = cursor->set;
f1ab5dac 1582 u16 fg, bg;
1da177e4 1583
f1ab5dac
JS		 1584 if (cursor->image.width > MAX_CURS || cursor->image.height > MAX_CURS)
1585 return -ENXIO;
1da177e4
LT		 1586
1587 par->riva.ShowHideCursor(&par->riva, 0);
1588
1589 if (par->cursor_reset) {
1590 set = FB_CUR_SETALL;
1591 par->cursor_reset = 0;
1592 }
1593
1594 if (set & FB_CUR_SETSIZE)
1595 memset_io(par->riva.CURSOR, 0, MAX_CURS * MAX_CURS * 2);
1596
1597 if (set & FB_CUR_SETPOS) {
1598 u32 xx, yy, temp;
1599
1600 yy = cursor->image.dy - info->var.yoffset;
1601 xx = cursor->image.dx - info->var.xoffset;
1602 temp = xx & 0xFFFF;
1603 temp |= yy << 16;
1604
1605 NV_WR32(par->riva.PRAMDAC, 0x0000300, temp);
1606 }
1607
1608
1609 if (set & (FB_CUR_SETSHAPE | FB_CUR_SETCMAP | FB_CUR_SETIMAGE)) {
1610 u32 bg_idx = cursor->image.bg_color;
1611 u32 fg_idx = cursor->image.fg_color;
1612 u32 s_pitch = (cursor->image.width+7) >> 3;
1613 u32 d_pitch = MAX_CURS/8;
1614 u8 *dat = (u8 *) cursor->image.data;
1615 u8 *msk = (u8 *) cursor->mask;
1616 u8 *src;
1617
6da2ec56 1618 src = kmalloc_array(s_pitch, cursor->image.height, GFP_ATOMIC);
1da177e4
LT		 1619
1620 if (src) {
1621 switch (cursor->rop) {
1622 case ROP_XOR:
f1ab5dac 1623 for (i = 0; i < s_pitch * cursor->image.height; i++)
1da177e4
LT		 1624 src[i] = dat[i] ^ msk[i];
1625 break;
1626 case ROP_COPY:
1627 default:
f1ab5dac 1628 for (i = 0; i < s_pitch * cursor->image.height; i++)
1da177e4
LT		 1629 src[i] = dat[i] & msk[i];
1630 break;
1631 }
1632
f1ab5dac
JS		 1633 fb_pad_aligned_buffer(data, d_pitch, src, s_pitch,
1634 cursor->image.height);
1da177e4
LT		 1635
1636 bg = ((info->cmap.red[bg_idx] & 0xf8) << 7) |
1637 ((info->cmap.green[bg_idx] & 0xf8) << 2) |
1638 ((info->cmap.blue[bg_idx] & 0xf8) >> 3) |
1639 1 << 15;
1640
1641 fg = ((info->cmap.red[fg_idx] & 0xf8) << 7) |
1642 ((info->cmap.green[fg_idx] & 0xf8) << 2) |
1643 ((info->cmap.blue[fg_idx] & 0xf8) >> 3) |
1644 1 << 15;
1645
1646 par->riva.LockUnlock(&par->riva, 0);
1647
1648 rivafb_load_cursor_image(par, data, bg, fg,
1649 cursor->image.width,
1650 cursor->image.height);
1651 kfree(src);
1652 }
1653 }
1654
1655 if (cursor->enable)
1656 par->riva.ShowHideCursor(&par->riva, 1);
1657
1658 return 0;
1659}
1660
1661static int rivafb_sync(struct fb_info *info)
1662{
f4a41836 1663 struct riva_par *par = info->par;
1da177e4
LT		 1664
1665 wait_for_idle(par);
1666 return 0;
1667}
1668
1669/* ------------------------------------------------------------------------- *
1670 *
1671 * initialization helper functions
1672 *
1673 * ------------------------------------------------------------------------- */
1674
1675/* kernel interface */
1676static struct fb_ops riva_fb_ops = {
1677 .owner = THIS_MODULE,
1678 .fb_open = rivafb_open,
1679 .fb_release = rivafb_release,
1680 .fb_check_var = rivafb_check_var,
1681 .fb_set_par = rivafb_set_par,
1682 .fb_setcolreg = rivafb_setcolreg,
1683 .fb_pan_display = rivafb_pan_display,
1684 .fb_blank = rivafb_blank,
1685 .fb_fillrect = rivafb_fillrect,
1686 .fb_copyarea = rivafb_copyarea,
1687 .fb_imageblit = rivafb_imageblit,
1688 .fb_cursor = rivafb_cursor,
1689 .fb_sync = rivafb_sync,
1690};
1691
48c68c4f 1692static int riva_set_fbinfo(struct fb_info *info)
1da177e4
LT		 1693{
1694 unsigned int cmap_len;
f4a41836 1695 struct riva_par *par = info->par;
1da177e4
LT		 1696
1697 NVTRACE_ENTER();
1698 info->flags = FBINFO_DEFAULT
1699 | FBINFO_HWACCEL_XPAN
1700 | FBINFO_HWACCEL_YPAN
1701 | FBINFO_HWACCEL_COPYAREA
1702 | FBINFO_HWACCEL_FILLRECT
1703 | FBINFO_HWACCEL_IMAGEBLIT;
1704
1705 /* Accel seems to not work properly on NV30 yet...*/
1706 if ((par->riva.Architecture == NV_ARCH_30) || noaccel) {
1707 printk(KERN_DEBUG PFX "disabling acceleration\n");
1708 info->flags |= FBINFO_HWACCEL_DISABLED;
1709 }
1710
1711 info->var = rivafb_default_var;
1712 info->fix.visual = (info->var.bits_per_pixel == 8) ?
1713 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
1714
1715 info->pseudo_palette = par->pseudo_palette;
1716
1717 cmap_len = riva_get_cmap_len(&info->var);
1718 fb_alloc_cmap(&info->cmap, cmap_len, 0);
1719
1720 info->pixmap.size = 8 * 1024;
1721 info->pixmap.buf_align = 4;
58a60643 1722 info->pixmap.access_align = 32;
1da177e4
LT		 1723 info->pixmap.flags = FB_PIXMAP_SYSTEM;
1724 info->var.yres_virtual = -1;
1725 NVTRACE_LEAVE();
1726 return (rivafb_check_var(&info->var, info));
1727}
1728
48c68c4f 1729static int riva_get_EDID_OF(struct fb_info *info, struct pci_dev *pd)
1da177e4 1730{
f4a41836 1731 struct riva_par *par = info->par;
1da177e4 1732 struct device_node *dp;
79da342c 1733 const unsigned char *pedid = NULL;
13b5aecc 1734 const unsigned char *disptype = NULL;
1da177e4
LT		 1735 static char *propnames[] = {
1736 "DFP,EDID", "LCD,EDID", "EDID", "EDID1", "EDID,B", "EDID,A", NULL };
1737 int i;
1738
1739 NVTRACE_ENTER();
1740 dp = pci_device_to_OF_node(pd);
1741 for (; dp != NULL; dp = dp->child) {
40cd3a45 1742 disptype = of_get_property(dp, "display-type", NULL);
1da177e4
LT		 1743 if (disptype == NULL)
1744 continue;
1745 if (strncmp(disptype, "LCD", 3) != 0)
1746 continue;
1747 for (i = 0; propnames[i] != NULL; ++i) {
40cd3a45 1748 pedid = of_get_property(dp, propnames[i], NULL);
1da177e4 1749 if (pedid != NULL) {
0271eb94 1750 par->EDID = (unsigned char *)pedid;
1da177e4
LT		 1751 NVTRACE("LCD found.\n");
1752 return 1;
1753 }
1754 }
1755 }
1756 NVTRACE_LEAVE();
1757 return 0;
1758}
1da177e4 1759
d14c374c 1760#if defined(CONFIG_FB_RIVA_I2C)
48c68c4f 1761static int riva_get_EDID_i2c(struct fb_info *info)
1da177e4 1762{
f4a41836 1763 struct riva_par *par = info->par;
1da177e4
LT		 1764 struct fb_var_screeninfo var;
1765 int i;
1766
1767 NVTRACE_ENTER();
1c639bae 1768 par->riva.LockUnlock(&par->riva, 0);
1da177e4 1769 riva_create_i2c_busses(par);
a65ff76a 1770 for (i = 0; i < 3; i++) {
5b358fe1
JD		 1771 if (!par->chan[i].par)
1772 continue;
a65ff76a 1773 riva_probe_i2c_connector(par, i, &par->EDID);
1da177e4
LT		 1774 if (par->EDID && !fb_parse_edid(par->EDID, &var)) {
1775 printk(PFX "Found EDID Block from BUS %i\n", i);
1776 break;
1777 }
1778 }
1779
1780 NVTRACE_LEAVE();
1781 return (par->EDID) ? 1 : 0;
1782}
1783#endif /* CONFIG_FB_RIVA_I2C */
1784
48c68c4f
GKH		 1785static void riva_update_default_var(struct fb_var_screeninfo *var,
1786 struct fb_info *info)
1da177e4
LT		 1787{
1788 struct fb_monspecs *specs = &info->monspecs;
1789 struct fb_videomode modedb;
1790
1791 NVTRACE_ENTER();
1792 /* respect mode options */
1793 if (mode_option) {
1794 fb_find_mode(var, info, mode_option,
1795 specs->modedb, specs->modedb_len,
1796 NULL, 8);
1797 } else if (specs->modedb != NULL) {
c718a546
DK		 1798 /* get first mode in database as fallback */
1799 modedb = specs->modedb[0];
1da177e4
LT		 1800 /* get preferred timing */
1801 if (info->monspecs.misc & FB_MISC_1ST_DETAIL) {
1802 int i;
1803
1804 for (i = 0; i < specs->modedb_len; i++) {
1805 if (specs->modedb[i].flag & FB_MODE_IS_FIRST) {
1806 modedb = specs->modedb[i];
1807 break;
1808 }
1809 }
1da177e4
LT		 1810 }
1811 var->bits_per_pixel = 8;
1812 riva_update_var(var, &modedb);
1813 }
1814 NVTRACE_LEAVE();
1815}
1816
1817
48c68c4f 1818static void riva_get_EDID(struct fb_info *info, struct pci_dev *pdev)
1da177e4
LT		 1819{
1820 NVTRACE_ENTER();
d14c374c
KH		 1821 if (riva_get_EDID_OF(info, pdev)) {
1822 NVTRACE_LEAVE();
1823 return;
1824 }
1825 if (IS_ENABLED(CONFIG_OF))
1da177e4 1826 printk(PFX "could not retrieve EDID from OF\n");
d14c374c 1827#if defined(CONFIG_FB_RIVA_I2C)
1da177e4
LT		 1828 if (!riva_get_EDID_i2c(info))
1829 printk(PFX "could not retrieve EDID from DDC/I2C\n");
1830#endif
1831 NVTRACE_LEAVE();
1832}
1833
1834
48c68c4f 1835static void riva_get_edidinfo(struct fb_info *info)
1da177e4
LT		 1836{
1837 struct fb_var_screeninfo *var = &rivafb_default_var;
f4a41836 1838 struct riva_par *par = info->par;
1da177e4
LT		 1839
1840 fb_edid_to_monspecs(par->EDID, &info->monspecs);
1841 fb_videomode_to_modelist(info->monspecs.modedb, info->monspecs.modedb_len,
1842 &info->modelist);
1843 riva_update_default_var(var, info);
1844
1845 /* if user specified flatpanel, we respect that */
1846 if (info->monspecs.input & FB_DISP_DDI)
1847 par->FlatPanel = 1;
1848}
1849
1850/* ------------------------------------------------------------------------- *
1851 *
1852 * PCI bus
1853 *
1854 * ------------------------------------------------------------------------- */
1855
48c68c4f 1856static u32 riva_get_arch(struct pci_dev *pd)
1da177e4
LT		 1857{
1858 u32 arch = 0;
1859
1860 switch (pd->device & 0x0ff0) {
1861 case 0x0100: /* GeForce 256 */
1862 case 0x0110: /* GeForce2 MX */
1863 case 0x0150: /* GeForce2 */
1864 case 0x0170: /* GeForce4 MX */
1865 case 0x0180: /* GeForce4 MX (8x AGP) */
1866 case 0x01A0: /* nForce */
1867 case 0x01F0: /* nForce2 */
1868 arch = NV_ARCH_10;
1869 break;
1870 case 0x0200: /* GeForce3 */
1871 case 0x0250: /* GeForce4 Ti */
1872 case 0x0280: /* GeForce4 Ti (8x AGP) */
1873 arch = NV_ARCH_20;
1874 break;
1875 case 0x0300: /* GeForceFX 5800 */
1876 case 0x0310: /* GeForceFX 5600 */
1877 case 0x0320: /* GeForceFX 5200 */
1878 case 0x0330: /* GeForceFX 5900 */
1879 case 0x0340: /* GeForceFX 5700 */
1880 arch = NV_ARCH_30;
1881 break;
1882 case 0x0020: /* TNT, TNT2 */
1883 arch = NV_ARCH_04;
1884 break;
1885 case 0x0010: /* Riva128 */
1886 arch = NV_ARCH_03;
1887 break;
1888 default: /* unknown architecture */
1889 break;
1890 }
1891 return arch;
1892}
1893
48c68c4f 1894static int rivafb_probe(struct pci_dev *pd, const struct pci_device_id *ent)
1da177e4
LT		 1895{
1896 struct riva_par *default_par;
1897 struct fb_info *info;
1898 int ret;
1899
1900 NVTRACE_ENTER();
1901 assert(pd != NULL);
1902
1903 info = framebuffer_alloc(sizeof(struct riva_par), &pd->dev);
1904 if (!info) {
1905 printk (KERN_ERR PFX "could not allocate memory\n");
1906 ret = -ENOMEM;
1907 goto err_ret;
1908 }
f4a41836 1909 default_par = info->par;
1da177e4
LT		 1910 default_par->pdev = pd;
1911
f5610b9c 1912 info->pixmap.addr = kzalloc(8 * 1024, GFP_KERNEL);
1da177e4
LT		 1913 if (info->pixmap.addr == NULL) {
1914 ret = -ENOMEM;
1915 goto err_framebuffer_release;
1916 }
1da177e4
LT		 1917
1918 ret = pci_enable_device(pd);
1919 if (ret < 0) {
1920 printk(KERN_ERR PFX "cannot enable PCI device\n");
1921 goto err_free_pixmap;
1922 }
1923
1924 ret = pci_request_regions(pd, "rivafb");
1925 if (ret < 0) {
1926 printk(KERN_ERR PFX "cannot request PCI regions\n");
1927 goto err_disable_device;
1928 }
1929
c4f28e54 1930 mutex_init(&default_par->open_lock);
1da177e4
LT		 1931 default_par->riva.Architecture = riva_get_arch(pd);
1932
1933 default_par->Chipset = (pd->vendor << 16) | pd->device;
1934 printk(KERN_INFO PFX "nVidia device/chipset %X\n",default_par->Chipset);
1935
1da177e4
LT		 1936 if(default_par->riva.Architecture == 0) {
1937 printk(KERN_ERR PFX "unknown NV_ARCH\n");
1938 ret=-ENODEV;
1939 goto err_release_region;
1940 }
1941 if(default_par->riva.Architecture == NV_ARCH_10 ||
1942 default_par->riva.Architecture == NV_ARCH_20 ||
1943 default_par->riva.Architecture == NV_ARCH_30) {
1944 sprintf(rivafb_fix.id, "NV%x", (pd->device & 0x0ff0) >> 4);
1945 } else {
1946 sprintf(rivafb_fix.id, "NV%x", default_par->riva.Architecture);
1947 }
1948
1949 default_par->FlatPanel = flatpanel;
1950 if (flatpanel == 1)
1951 printk(KERN_INFO PFX "flatpanel support enabled\n");
1952 default_par->forceCRTC = forceCRTC;
1953
1954 rivafb_fix.mmio_len = pci_resource_len(pd, 0);
1955 rivafb_fix.smem_len = pci_resource_len(pd, 1);
1956
1957 {
1958 /* enable IO and mem if not already done */
1959 unsigned short cmd;
1960
1961 pci_read_config_word(pd, PCI_COMMAND, &cmd);
1962 cmd |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
1963 pci_write_config_word(pd, PCI_COMMAND, cmd);
1964 }
1965
1966 rivafb_fix.mmio_start = pci_resource_start(pd, 0);
1967 rivafb_fix.smem_start = pci_resource_start(pd, 1);
1968
1969 default_par->ctrl_base = ioremap(rivafb_fix.mmio_start,
1970 rivafb_fix.mmio_len);
1971 if (!default_par->ctrl_base) {
1972 printk(KERN_ERR PFX "cannot ioremap MMIO base\n");
1973 ret = -EIO;
1974 goto err_release_region;
1975 }
1976
1977 switch (default_par->riva.Architecture) {
1978 case NV_ARCH_03:
1979 /* Riva128's PRAMIN is in the "framebuffer" space
1980 * Since these cards were never made with more than 8 megabytes
1981 * we can safely allocate this separately.
1982 */
1983 default_par->riva.PRAMIN = ioremap(rivafb_fix.smem_start + 0x00C00000, 0x00008000);
1984 if (!default_par->riva.PRAMIN) {
1985 printk(KERN_ERR PFX "cannot ioremap PRAMIN region\n");
1986 ret = -EIO;
1987 goto err_iounmap_ctrl_base;
1988 }
1989 break;
1990 case NV_ARCH_04:
1991 case NV_ARCH_10:
1992 case NV_ARCH_20:
1993 case NV_ARCH_30:
1994 default_par->riva.PCRTC0 =
1995 (u32 __iomem *)(default_par->ctrl_base + 0x00600000);
1996 default_par->riva.PRAMIN =
1997 (u32 __iomem *)(default_par->ctrl_base + 0x00710000);
1998 break;
1999 }
2000 riva_common_setup(default_par);
2001
2002 if (default_par->riva.Architecture == NV_ARCH_03) {
2003 default_par->riva.PCRTC = default_par->riva.PCRTC0
2004 = default_par->riva.PGRAPH;
2005 }
2006
2007 rivafb_fix.smem_len = riva_get_memlen(default_par) * 1024;
2008 default_par->dclk_max = riva_get_maxdclk(default_par) * 1000;
04dc78b4
LR		 2009 info->screen_base = ioremap_wc(rivafb_fix.smem_start,
2010 rivafb_fix.smem_len);
1da177e4
LT		 2011 if (!info->screen_base) {
2012 printk(KERN_ERR PFX "cannot ioremap FB base\n");
2013 ret = -EIO;
2014 goto err_iounmap_pramin;
2015 }
2016
04dc78b4
LR		 2017 if (!nomtrr)
2018 default_par->wc_cookie =
2019 arch_phys_wc_add(rivafb_fix.smem_start,
2020 rivafb_fix.smem_len);
1da177e4
LT		 2021
2022 info->fbops = &riva_fb_ops;
2023 info->fix = rivafb_fix;
2024 riva_get_EDID(info, pd);
2025 riva_get_edidinfo(info);
2026
2027 ret=riva_set_fbinfo(info);
2028 if (ret < 0) {
2029 printk(KERN_ERR PFX "error setting initial video mode\n");
2030 goto err_iounmap_screen_base;
2031 }
2032
2033 fb_destroy_modedb(info->monspecs.modedb);
2034 info->monspecs.modedb = NULL;
ce38cac4
GG		 2035
2036 pci_set_drvdata(pd, info);
202d4e60
RP		 2037
2038 if (backlight)
2039 riva_bl_init(info->par);
2040
1da177e4
LT		 2041 ret = register_framebuffer(info);
2042 if (ret < 0) {
2043 printk(KERN_ERR PFX
2044 "error registering riva framebuffer\n");
2045 goto err_iounmap_screen_base;
2046 }
2047
1da177e4
LT		 2048 printk(KERN_INFO PFX
2049 "PCI nVidia %s framebuffer ver %s (%dMB @ 0x%lX)\n",
2050 info->fix.id,
2051 RIVAFB_VERSION,
2052 info->fix.smem_len / (1024 * 1024),
2053 info->fix.smem_start);
5474c120 2054
1da177e4
LT		 2055 NVTRACE_LEAVE();
2056 return 0;
2057
2058err_iounmap_screen_base:
2059#ifdef CONFIG_FB_RIVA_I2C
f4a41836 2060 riva_delete_i2c_busses(info->par);
1da177e4
LT		 2061#endif
2062 iounmap(info->screen_base);
2063err_iounmap_pramin:
2064 if (default_par->riva.Architecture == NV_ARCH_03)
2065 iounmap(default_par->riva.PRAMIN);
2066err_iounmap_ctrl_base:
2067 iounmap(default_par->ctrl_base);
2068err_release_region:
2069 pci_release_regions(pd);
2070err_disable_device:
1da177e4
LT		 2071err_free_pixmap:
2072 kfree(info->pixmap.addr);
2073err_framebuffer_release:
2074 framebuffer_release(info);
2075err_ret:
2076 return ret;
2077}
2078
48c68c4f 2079static void rivafb_remove(struct pci_dev *pd)
1da177e4
LT		 2080{
2081 struct fb_info *info = pci_get_drvdata(pd);
f4a41836 2082 struct riva_par *par = info->par;
1da177e4
LT		 2083
2084 NVTRACE_ENTER();
1da177e4
LT		 2085
2086#ifdef CONFIG_FB_RIVA_I2C
2087 riva_delete_i2c_busses(par);
2088 kfree(par->EDID);
2089#endif
2090
2091 unregister_framebuffer(info);
37ce69a5
RP		 2092
2093 riva_bl_exit(info);
04dc78b4 2094 arch_phys_wc_del(par->wc_cookie);
1da177e4
LT		 2095 iounmap(par->ctrl_base);
2096 iounmap(info->screen_base);
2097 if (par->riva.Architecture == NV_ARCH_03)
2098 iounmap(par->riva.PRAMIN);
2099 pci_release_regions(pd);
1da177e4
LT		 2100 kfree(info->pixmap.addr);
2101 framebuffer_release(info);
1da177e4
LT		 2102 NVTRACE_LEAVE();
2103}
2104
2105/* ------------------------------------------------------------------------- *
2106 *
2107 * initialization
2108 *
2109 * ------------------------------------------------------------------------- */
2110
2111#ifndef MODULE
48c68c4f 2112static int rivafb_setup(char *options)
1da177e4
LT		 2113{
2114 char *this_opt;
2115
2116 NVTRACE_ENTER();
2117 if (!options || !*options)
2118 return 0;
2119
2120 while ((this_opt = strsep(&options, ",")) != NULL) {
2121 if (!strncmp(this_opt, "forceCRTC", 9)) {
2122 char *p;
2123
2124 p = this_opt + 9;
2125 if (!*p || !*(++p)) continue;
2126 forceCRTC = *p - '0';
2127 if (forceCRTC < 0 || forceCRTC > 1)
2128 forceCRTC = -1;
2129 } else if (!strncmp(this_opt, "flatpanel", 9)) {
2130 flatpanel = 1;
202d4e60
RP		 2131 } else if (!strncmp(this_opt, "backlight:", 10)) {
2132 backlight = simple_strtoul(this_opt+10, NULL, 0);
1da177e4
LT		 2133 } else if (!strncmp(this_opt, "nomtrr", 6)) {
2134 nomtrr = 1;
1da177e4
LT		 2135 } else if (!strncmp(this_opt, "strictmode", 10)) {
2136 strictmode = 1;
2137 } else if (!strncmp(this_opt, "noaccel", 7)) {
2138 noaccel = 1;
2139 } else
2140 mode_option = this_opt;
2141 }
2142 NVTRACE_LEAVE();
2143 return 0;
2144}
2145#endif /* !MODULE */
2146
2147static struct pci_driver rivafb_driver = {
2148 .name = "rivafb",
2149 .id_table = rivafb_pci_tbl,
2150 .probe = rivafb_probe,
48c68c4f 2151 .remove = rivafb_remove,
1da177e4
LT		 2152};
2153
2154
2155
2156/* ------------------------------------------------------------------------- *
2157 *
2158 * modularization
2159 *
2160 * ------------------------------------------------------------------------- */
2161
48c68c4f 2162static int rivafb_init(void)
1da177e4
LT		 2163{
2164#ifndef MODULE
2165 char *option = NULL;
2166
2167 if (fb_get_options("rivafb", &option))
2168 return -ENODEV;
2169 rivafb_setup(option);
2170#endif
2171 return pci_register_driver(&rivafb_driver);
2172}
2173
2174
2175module_init(rivafb_init);
2176
1da177e4
LT		 2177static void __exit rivafb_exit(void)
2178{
2179 pci_unregister_driver(&rivafb_driver);
2180}
2181
2182module_exit(rivafb_exit);
1da177e4
LT		 2183
2184module_param(noaccel, bool, 0);
2185MODULE_PARM_DESC(noaccel, "bool: disable acceleration");
2186module_param(flatpanel, int, 0);
2187MODULE_PARM_DESC(flatpanel, "Enables experimental flat panel support for some chipsets. (0 or 1=enabled) (default=0)");
2188module_param(forceCRTC, int, 0);
2189MODULE_PARM_DESC(forceCRTC, "Forces usage of a particular CRTC in case autodetection fails. (0 or 1) (default=autodetect)");
1da177e4
LT		 2190module_param(nomtrr, bool, 0);
2191MODULE_PARM_DESC(nomtrr, "Disables MTRR support (0 or 1=disabled) (default=0)");
1da177e4
LT		 2192module_param(strictmode, bool, 0);
2193MODULE_PARM_DESC(strictmode, "Only use video modes from EDID");
2194
2195MODULE_AUTHOR("Ani Joshi, maintainer");
2196MODULE_DESCRIPTION("Framebuffer driver for nVidia Riva 128, TNT, TNT2, and the GeForce series");
2197MODULE_LICENSE("GPL");
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