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Linux-2.6.12-rc2
[mirror_ubuntu-artful-kernel.git] / drivers / video / aty / atyfb_base.c
1 /*
2 * ATI Frame Buffer Device Driver Core
3 *
4 * Copyright (C) 2004 Alex Kern <alex.kern@gmx.de>
5 * Copyright (C) 1997-2001 Geert Uytterhoeven
6 * Copyright (C) 1998 Bernd Harries
7 * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
8 *
9 * This driver supports the following ATI graphics chips:
10 * - ATI Mach64
11 *
12 * To do: add support for
13 * - ATI Rage128 (from aty128fb.c)
14 * - ATI Radeon (from radeonfb.c)
15 *
16 * This driver is partly based on the PowerMac console driver:
17 *
18 * Copyright (C) 1996 Paul Mackerras
19 *
20 * and on the PowerMac ATI/mach64 display driver:
21 *
22 * Copyright (C) 1997 Michael AK Tesch
23 *
24 * with work by Jon Howell
25 * Harry AC Eaton
26 * Anthony Tong <atong@uiuc.edu>
27 *
28 * Generic LCD support written by Daniel Mantione, ported from 2.4.20 by Alex Kern
29 * Many Thanks to Ville Syrjälä for patches and fixing nasting 16 bit color bug.
30 *
31 * This file is subject to the terms and conditions of the GNU General Public
32 * License. See the file COPYING in the main directory of this archive for
33 * more details.
34 *
35 * Many thanks to Nitya from ATI devrel for support and patience !
36 */
37
38 /******************************************************************************
39
40 TODO:
41
42 - cursor support on all cards and all ramdacs.
43 - cursor parameters controlable via ioctl()s.
44 - guess PLL and MCLK based on the original PLL register values initialized
45 by Open Firmware (if they are initialized). BIOS is done
46
47 (Anyone with Mac to help with this?)
48
49 ******************************************************************************/
50
51
52 #include <linux/config.h>
53 #include <linux/module.h>
54 #include <linux/moduleparam.h>
55 #include <linux/kernel.h>
56 #include <linux/errno.h>
57 #include <linux/string.h>
58 #include <linux/mm.h>
59 #include <linux/slab.h>
60 #include <linux/vmalloc.h>
61 #include <linux/delay.h>
62 #include <linux/console.h>
63 #include <linux/fb.h>
64 #include <linux/init.h>
65 #include <linux/pci.h>
66 #include <linux/interrupt.h>
67 #include <linux/spinlock.h>
68 #include <linux/wait.h>
69
70 #include <asm/io.h>
71 #include <asm/uaccess.h>
72
73 #include <video/mach64.h>
74 #include "atyfb.h"
75 #include "ati_ids.h"
76
77 #ifdef __powerpc__
78 #include <asm/prom.h>
79 #include "../macmodes.h"
80 #endif
81 #ifdef __sparc__
82 #include <asm/pbm.h>
83 #include <asm/fbio.h>
84 #endif
85
86 #ifdef CONFIG_ADB_PMU
87 #include <linux/adb.h>
88 #include <linux/pmu.h>
89 #endif
90 #ifdef CONFIG_BOOTX_TEXT
91 #include <asm/btext.h>
92 #endif
93 #ifdef CONFIG_PMAC_BACKLIGHT
94 #include <asm/backlight.h>
95 #endif
96 #ifdef CONFIG_MTRR
97 #include <asm/mtrr.h>
98 #endif
99
100 /*
101 * Debug flags.
102 */
103 #undef DEBUG
104 /*#define DEBUG*/
105
106 /* Make sure n * PAGE_SIZE is protected at end of Aperture for GUI-regs */
107 /* - must be large enough to catch all GUI-Regs */
108 /* - must be aligned to a PAGE boundary */
109 #define GUI_RESERVE (1 * PAGE_SIZE)
110
111 /* FIXME: remove the FAIL definition */
112 #define FAIL(msg) do { printk(KERN_CRIT "atyfb: " msg "\n"); return -EINVAL; } while (0)
113 #define FAIL_MAX(msg, x, _max_) do { if(x > _max_) { printk(KERN_CRIT "atyfb: " msg " %x(%x)\n", x, _max_); return -EINVAL; } } while (0)
114
115 #ifdef DEBUG
116 #define DPRINTK(fmt, args...) printk(KERN_DEBUG "atyfb: " fmt, ## args)
117 #else
118 #define DPRINTK(fmt, args...)
119 #endif
120
121 #define PRINTKI(fmt, args...) printk(KERN_INFO "atyfb: " fmt, ## args)
122 #define PRINTKE(fmt, args...) printk(KERN_ERR "atyfb: " fmt, ## args)
123
124 #if defined(CONFIG_PM) || defined(CONFIG_PMAC_BACKLIGHT) || defined (CONFIG_FB_ATY_GENERIC_LCD)
125 static const u32 lt_lcd_regs[] = {
126 CONFIG_PANEL_LG,
127 LCD_GEN_CNTL_LG,
128 DSTN_CONTROL_LG,
129 HFB_PITCH_ADDR_LG,
130 HORZ_STRETCHING_LG,
131 VERT_STRETCHING_LG,
132 0, /* EXT_VERT_STRETCH */
133 LT_GIO_LG,
134 POWER_MANAGEMENT_LG
135 };
136
137 void aty_st_lcd(int index, u32 val, const struct atyfb_par *par)
138 {
139 if (M64_HAS(LT_LCD_REGS)) {
140 aty_st_le32(lt_lcd_regs[index], val, par);
141 } else {
142 unsigned long temp;
143
144 /* write addr byte */
145 temp = aty_ld_le32(LCD_INDEX, par);
146 aty_st_le32(LCD_INDEX, (temp & ~LCD_INDEX_MASK) | index, par);
147 /* write the register value */
148 aty_st_le32(LCD_DATA, val, par);
149 }
150 }
151
152 u32 aty_ld_lcd(int index, const struct atyfb_par *par)
153 {
154 if (M64_HAS(LT_LCD_REGS)) {
155 return aty_ld_le32(lt_lcd_regs[index], par);
156 } else {
157 unsigned long temp;
158
159 /* write addr byte */
160 temp = aty_ld_le32(LCD_INDEX, par);
161 aty_st_le32(LCD_INDEX, (temp & ~LCD_INDEX_MASK) | index, par);
162 /* read the register value */
163 return aty_ld_le32(LCD_DATA, par);
164 }
165 }
166 #endif /* defined(CONFIG_PM) || defined(CONFIG_PMAC_BACKLIGHT) || defined (CONFIG_FB_ATY_GENERIC_LCD) */
167
168 #ifdef CONFIG_FB_ATY_GENERIC_LCD
169 /*
170 * ATIReduceRatio --
171 *
172 * Reduce a fraction by factoring out the largest common divider of the
173 * fraction's numerator and denominator.
174 */
175 static void ATIReduceRatio(int *Numerator, int *Denominator)
176 {
177 int Multiplier, Divider, Remainder;
178
179 Multiplier = *Numerator;
180 Divider = *Denominator;
181
182 while ((Remainder = Multiplier % Divider))
183 {
184 Multiplier = Divider;
185 Divider = Remainder;
186 }
187
188 *Numerator /= Divider;
189 *Denominator /= Divider;
190 }
191 #endif
192 /*
193 * The Hardware parameters for each card
194 */
195
196 struct aty_cmap_regs {
197 u8 windex;
198 u8 lut;
199 u8 mask;
200 u8 rindex;
201 u8 cntl;
202 };
203
204 struct pci_mmap_map {
205 unsigned long voff;
206 unsigned long poff;
207 unsigned long size;
208 unsigned long prot_flag;
209 unsigned long prot_mask;
210 };
211
212 static struct fb_fix_screeninfo atyfb_fix __devinitdata = {
213 .id = "ATY Mach64",
214 .type = FB_TYPE_PACKED_PIXELS,
215 .visual = FB_VISUAL_PSEUDOCOLOR,
216 .xpanstep = 8,
217 .ypanstep = 1,
218 };
219
220 /*
221 * Frame buffer device API
222 */
223
224 static int atyfb_open(struct fb_info *info, int user);
225 static int atyfb_release(struct fb_info *info, int user);
226 static int atyfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info);
227 static int atyfb_set_par(struct fb_info *info);
228 static int atyfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
229 u_int transp, struct fb_info *info);
230 static int atyfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info);
231 static int atyfb_blank(int blank, struct fb_info *info);
232 static int atyfb_ioctl(struct inode *inode, struct file *file, u_int cmd,
233 u_long arg, struct fb_info *info);
234 extern void atyfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
235 extern void atyfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
236 extern void atyfb_imageblit(struct fb_info *info, const struct fb_image *image);
237 #ifdef __sparc__
238 static int atyfb_mmap(struct fb_info *info, struct file *file, struct vm_area_struct *vma);
239 #endif
240 static int atyfb_sync(struct fb_info *info);
241
242 /*
243 * Internal routines
244 */
245
246 static int aty_init(struct fb_info *info, const char *name);
247 #ifdef CONFIG_ATARI
248 static int store_video_par(char *videopar, unsigned char m64_num);
249 #endif
250
251 static struct crtc saved_crtc;
252 static union aty_pll saved_pll;
253 static void aty_get_crtc(const struct atyfb_par *par, struct crtc *crtc);
254
255 static void aty_set_crtc(const struct atyfb_par *par, const struct crtc *crtc);
256 static int aty_var_to_crtc(const struct fb_info *info, const struct fb_var_screeninfo *var, struct crtc *crtc);
257 static int aty_crtc_to_var(const struct crtc *crtc, struct fb_var_screeninfo *var);
258 static void set_off_pitch(struct atyfb_par *par, const struct fb_info *info);
259 #ifdef CONFIG_PPC
260 static int read_aty_sense(const struct atyfb_par *par);
261 #endif
262
263
264 /*
265 * Interface used by the world
266 */
267
268 static struct fb_var_screeninfo default_var = {
269 /* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */
270 640, 480, 640, 480, 0, 0, 8, 0,
271 {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
272 0, 0, -1, -1, 0, 39722, 48, 16, 33, 10, 96, 2,
273 0, FB_VMODE_NONINTERLACED
274 };
275
276 static struct fb_videomode defmode = {
277 /* 640x480 @ 60 Hz, 31.5 kHz hsync */
278 NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
279 0, FB_VMODE_NONINTERLACED
280 };
281
282 static struct fb_ops atyfb_ops = {
283 .owner = THIS_MODULE,
284 .fb_open = atyfb_open,
285 .fb_release = atyfb_release,
286 .fb_check_var = atyfb_check_var,
287 .fb_set_par = atyfb_set_par,
288 .fb_setcolreg = atyfb_setcolreg,
289 .fb_pan_display = atyfb_pan_display,
290 .fb_blank = atyfb_blank,
291 .fb_ioctl = atyfb_ioctl,
292 .fb_fillrect = atyfb_fillrect,
293 .fb_copyarea = atyfb_copyarea,
294 .fb_imageblit = atyfb_imageblit,
295 .fb_cursor = soft_cursor,
296 #ifdef __sparc__
297 .fb_mmap = atyfb_mmap,
298 #endif
299 .fb_sync = atyfb_sync,
300 };
301
302 static int noaccel;
303 #ifdef CONFIG_MTRR
304 static int nomtrr;
305 #endif
306 static int vram;
307 static int pll;
308 static int mclk;
309 static int xclk;
310 static int comp_sync __initdata = -1;
311 static char *mode;
312
313 #ifdef CONFIG_PPC
314 static int default_vmode __initdata = VMODE_CHOOSE;
315 static int default_cmode __initdata = CMODE_CHOOSE;
316
317 module_param_named(vmode, default_vmode, int, 0);
318 MODULE_PARM_DESC(vmode, "int: video mode for mac");
319 module_param_named(cmode, default_cmode, int, 0);
320 MODULE_PARM_DESC(cmode, "int: color mode for mac");
321 #endif
322
323 #ifdef CONFIG_ATARI
324 static unsigned int mach64_count __initdata = 0;
325 static unsigned long phys_vmembase[FB_MAX] __initdata = { 0, };
326 static unsigned long phys_size[FB_MAX] __initdata = { 0, };
327 static unsigned long phys_guiregbase[FB_MAX] __initdata = { 0, };
328 #endif
329
330 /* top -> down is an evolution of mach64 chipset, any corrections? */
331 #define ATI_CHIP_88800GX (M64F_GX)
332 #define ATI_CHIP_88800CX (M64F_GX)
333
334 #define ATI_CHIP_264CT (M64F_CT | M64F_INTEGRATED | M64F_CT_BUS | M64F_MAGIC_FIFO)
335 #define ATI_CHIP_264ET (M64F_CT | M64F_INTEGRATED | M64F_CT_BUS | M64F_MAGIC_FIFO)
336
337 #define ATI_CHIP_264VT (M64F_VT | M64F_INTEGRATED | M64F_VT_BUS | M64F_MAGIC_FIFO)
338 #define ATI_CHIP_264GT (M64F_GT | M64F_INTEGRATED | M64F_MAGIC_FIFO | M64F_EXTRA_BRIGHT)
339
340 #define ATI_CHIP_264VTB (M64F_VT | M64F_INTEGRATED | M64F_VT_BUS | M64F_GTB_DSP)
341 #define ATI_CHIP_264VT3 (M64F_VT | M64F_INTEGRATED | M64F_VT_BUS | M64F_GTB_DSP | M64F_SDRAM_MAGIC_PLL)
342 #define ATI_CHIP_264VT4 (M64F_VT | M64F_INTEGRATED | M64F_GTB_DSP)
343
344 #define ATI_CHIP_264LT (M64F_GT | M64F_INTEGRATED | M64F_GTB_DSP)
345
346 /* make sets shorter */
347 #define ATI_MODERN_SET (M64F_GT | M64F_INTEGRATED | M64F_GTB_DSP | M64F_EXTRA_BRIGHT)
348
349 #define ATI_CHIP_264GTB (ATI_MODERN_SET | M64F_SDRAM_MAGIC_PLL)
350 /*#define ATI_CHIP_264GTDVD ?*/
351 #define ATI_CHIP_264LTG (ATI_MODERN_SET | M64F_SDRAM_MAGIC_PLL)
352
353 #define ATI_CHIP_264GT2C (ATI_MODERN_SET | M64F_SDRAM_MAGIC_PLL | M64F_HW_TRIPLE)
354 #define ATI_CHIP_264GTPRO (ATI_MODERN_SET | M64F_SDRAM_MAGIC_PLL | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D)
355 #define ATI_CHIP_264LTPRO (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D)
356
357 #define ATI_CHIP_264XL (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D | M64F_XL_DLL | M64F_MFB_FORCE_4)
358 #define ATI_CHIP_MOBILITY (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D | M64F_XL_DLL | M64F_MFB_FORCE_4 | M64F_MOBIL_BUS)
359
360 static struct {
361 u16 pci_id;
362 const char *name;
363 int pll, mclk, xclk;
364 u32 features;
365 } aty_chips[] __devinitdata = {
366 #ifdef CONFIG_FB_ATY_GX
367 /* Mach64 GX */
368 { PCI_CHIP_MACH64GX, "ATI888GX00 (Mach64 GX)", 135, 50, 50, ATI_CHIP_88800GX },
369 { PCI_CHIP_MACH64CX, "ATI888CX00 (Mach64 CX)", 135, 50, 50, ATI_CHIP_88800CX },
370 #endif /* CONFIG_FB_ATY_GX */
371
372 #ifdef CONFIG_FB_ATY_CT
373 { PCI_CHIP_MACH64CT, "ATI264CT (Mach64 CT)", 135, 60, 60, ATI_CHIP_264CT },
374 { PCI_CHIP_MACH64ET, "ATI264ET (Mach64 ET)", 135, 60, 60, ATI_CHIP_264ET },
375 { PCI_CHIP_MACH64VT, "ATI264VT? (Mach64 VT)", 170, 67, 67, ATI_CHIP_264VT },
376 { PCI_CHIP_MACH64GT, "3D RAGE (Mach64 GT)", 135, 63, 63, ATI_CHIP_264GT },
377 /* FIXME { ...ATI_264GU, maybe ATI_CHIP_264GTDVD }, */
378 { PCI_CHIP_MACH64GU, "3D RAGE II+ (Mach64 GTB)", 200, 67, 67, ATI_CHIP_264GTB },
379 { PCI_CHIP_MACH64VU, "ATI264VTB (Mach64 VU)", 200, 67, 67, ATI_CHIP_264VT3 },
380
381 { PCI_CHIP_MACH64LT, "3D RAGE LT (Mach64 LT)", 135, 63, 63, ATI_CHIP_264LT },
382 /* FIXME chipset maybe ATI_CHIP_264LTPRO ? */
383 { PCI_CHIP_MACH64LG, "3D RAGE LT-G (Mach64 LG)", 230, 63, 63, ATI_CHIP_264LTG | M64F_LT_LCD_REGS | M64F_G3_PB_1024x768 },
384
385 { PCI_CHIP_MACH64VV, "ATI264VT4 (Mach64 VV)", 230, 83, 83, ATI_CHIP_264VT4 },
386
387 { PCI_CHIP_MACH64GV, "3D RAGE IIC (Mach64 GV, PCI)", 230, 83, 83, ATI_CHIP_264GT2C },
388 { PCI_CHIP_MACH64GW, "3D RAGE IIC (Mach64 GW, AGP)", 230, 83, 83, ATI_CHIP_264GT2C },
389 { PCI_CHIP_MACH64GY, "3D RAGE IIC (Mach64 GY, PCI)", 230, 83, 83, ATI_CHIP_264GT2C },
390 { PCI_CHIP_MACH64GZ, "3D RAGE IIC (Mach64 GZ, AGP)", 230, 83, 83, ATI_CHIP_264GT2C },
391
392 { PCI_CHIP_MACH64GB, "3D RAGE PRO (Mach64 GB, BGA, AGP)", 230, 100, 100, ATI_CHIP_264GTPRO },
393 { PCI_CHIP_MACH64GD, "3D RAGE PRO (Mach64 GD, BGA, AGP 1x)", 230, 100, 100, ATI_CHIP_264GTPRO },
394 { PCI_CHIP_MACH64GI, "3D RAGE PRO (Mach64 GI, BGA, PCI)", 230, 100, 100, ATI_CHIP_264GTPRO | M64F_MAGIC_VRAM_SIZE },
395 { PCI_CHIP_MACH64GP, "3D RAGE PRO (Mach64 GP, PQFP, PCI)", 230, 100, 100, ATI_CHIP_264GTPRO },
396 { PCI_CHIP_MACH64GQ, "3D RAGE PRO (Mach64 GQ, PQFP, PCI, limited 3D)", 230, 100, 100, ATI_CHIP_264GTPRO },
397
398 { PCI_CHIP_MACH64LB, "3D RAGE LT PRO (Mach64 LB, AGP)", 236, 75, 100, ATI_CHIP_264LTPRO },
399 { PCI_CHIP_MACH64LD, "3D RAGE LT PRO (Mach64 LD, AGP)", 230, 100, 100, ATI_CHIP_264LTPRO },
400 { PCI_CHIP_MACH64LI, "3D RAGE LT PRO (Mach64 LI, PCI)", 230, 100, 100, ATI_CHIP_264LTPRO | M64F_G3_PB_1_1 | M64F_G3_PB_1024x768 },
401 { PCI_CHIP_MACH64LP, "3D RAGE LT PRO (Mach64 LP, PCI)", 230, 100, 100, ATI_CHIP_264LTPRO },
402 { PCI_CHIP_MACH64LQ, "3D RAGE LT PRO (Mach64 LQ, PCI)", 230, 100, 100, ATI_CHIP_264LTPRO },
403
404 { PCI_CHIP_MACH64GM, "3D RAGE XL (Mach64 GM, AGP)", 230, 83, 63, ATI_CHIP_264XL },
405 { PCI_CHIP_MACH64GN, "3D RAGE XL (Mach64 GN, AGP)", 230, 83, 63, ATI_CHIP_264XL },
406 { PCI_CHIP_MACH64GO, "3D RAGE XL (Mach64 GO, PCI-66/BGA)", 230, 83, 63, ATI_CHIP_264XL },
407 { PCI_CHIP_MACH64GR, "3D RAGE XL (Mach64 GR, PCI-33MHz)", 230, 83, 63, ATI_CHIP_264XL },
408 { PCI_CHIP_MACH64GL, "3D RAGE XL (Mach64 GL, PCI)", 230, 83, 63, ATI_CHIP_264XL },
409 { PCI_CHIP_MACH64GS, "3D RAGE XL (Mach64 GS, PCI)", 230, 83, 63, ATI_CHIP_264XL },
410
411 { PCI_CHIP_MACH64LM, "3D RAGE Mobility P/M (Mach64 LM, AGP 2x)", 230, 83, 125, ATI_CHIP_MOBILITY },
412 { PCI_CHIP_MACH64LN, "3D RAGE Mobility L (Mach64 LN, AGP 2x)", 230, 83, 125, ATI_CHIP_MOBILITY },
413 { PCI_CHIP_MACH64LR, "3D RAGE Mobility P/M (Mach64 LR, PCI)", 230, 83, 125, ATI_CHIP_MOBILITY },
414 { PCI_CHIP_MACH64LS, "3D RAGE Mobility L (Mach64 LS, PCI)", 230, 83, 125, ATI_CHIP_MOBILITY },
415 #endif /* CONFIG_FB_ATY_CT */
416 };
417
418 /* can not fail */
419 static int __devinit correct_chipset(struct atyfb_par *par)
420 {
421 u8 rev;
422 u16 type;
423 u32 chip_id;
424 const char *name;
425 int i;
426
427 for (i = sizeof(aty_chips) / sizeof(*aty_chips) - 1; i >= 0; i--)
428 if (par->pci_id == aty_chips[i].pci_id)
429 break;
430
431 name = aty_chips[i].name;
432 par->pll_limits.pll_max = aty_chips[i].pll;
433 par->pll_limits.mclk = aty_chips[i].mclk;
434 par->pll_limits.xclk = aty_chips[i].xclk;
435 par->features = aty_chips[i].features;
436
437 chip_id = aty_ld_le32(CONFIG_CHIP_ID, par);
438 type = chip_id & CFG_CHIP_TYPE;
439 rev = (chip_id & CFG_CHIP_REV) >> 24;
440
441 switch(par->pci_id) {
442 #ifdef CONFIG_FB_ATY_GX
443 case PCI_CHIP_MACH64GX:
444 if(type != 0x00d7)
445 return -ENODEV;
446 break;
447 case PCI_CHIP_MACH64CX:
448 if(type != 0x0057)
449 return -ENODEV;
450 break;
451 #endif
452 #ifdef CONFIG_FB_ATY_CT
453 case PCI_CHIP_MACH64VT:
454 rev &= 0xc7;
455 if(rev == 0x00) {
456 name = "ATI264VTA3 (Mach64 VT)";
457 par->pll_limits.pll_max = 170;
458 par->pll_limits.mclk = 67;
459 par->pll_limits.xclk = 67;
460 par->features = ATI_CHIP_264VT;
461 } else if(rev == 0x40) {
462 name = "ATI264VTA4 (Mach64 VT)";
463 par->pll_limits.pll_max = 200;
464 par->pll_limits.mclk = 67;
465 par->pll_limits.xclk = 67;
466 par->features = ATI_CHIP_264VT | M64F_MAGIC_POSTDIV;
467 } else {
468 name = "ATI264VTB (Mach64 VT)";
469 par->pll_limits.pll_max = 200;
470 par->pll_limits.mclk = 67;
471 par->pll_limits.xclk = 67;
472 par->features = ATI_CHIP_264VTB;
473 }
474 break;
475 case PCI_CHIP_MACH64GT:
476 rev &= 0x07;
477 if(rev == 0x01) {
478 par->pll_limits.pll_max = 170;
479 par->pll_limits.mclk = 67;
480 par->pll_limits.xclk = 67;
481 par->features = ATI_CHIP_264GTB;
482 } else if(rev == 0x02) {
483 par->pll_limits.pll_max = 200;
484 par->pll_limits.mclk = 67;
485 par->pll_limits.xclk = 67;
486 par->features = ATI_CHIP_264GTB;
487 }
488 break;
489 #endif
490 }
491
492 PRINTKI("%s [0x%04x rev 0x%02x]\n", name, type, rev);
493 return 0;
494 }
495
496 static char ram_dram[] __devinitdata = "DRAM";
497 static char ram_resv[] __devinitdata = "RESV";
498 #ifdef CONFIG_FB_ATY_GX
499 static char ram_vram[] __devinitdata = "VRAM";
500 #endif /* CONFIG_FB_ATY_GX */
501 #ifdef CONFIG_FB_ATY_CT
502 static char ram_edo[] __devinitdata = "EDO";
503 static char ram_sdram[] __devinitdata = "SDRAM (1:1)";
504 static char ram_sgram[] __devinitdata = "SGRAM (1:1)";
505 static char ram_sdram32[] __devinitdata = "SDRAM (2:1) (32-bit)";
506 static char ram_off[] __devinitdata = "OFF";
507 #endif /* CONFIG_FB_ATY_CT */
508
509
510 static u32 pseudo_palette[17];
511
512 #ifdef CONFIG_FB_ATY_GX
513 static char *aty_gx_ram[8] __devinitdata = {
514 ram_dram, ram_vram, ram_vram, ram_dram,
515 ram_dram, ram_vram, ram_vram, ram_resv
516 };
517 #endif /* CONFIG_FB_ATY_GX */
518
519 #ifdef CONFIG_FB_ATY_CT
520 static char *aty_ct_ram[8] __devinitdata = {
521 ram_off, ram_dram, ram_edo, ram_edo,
522 ram_sdram, ram_sgram, ram_sdram32, ram_resv
523 };
524 #endif /* CONFIG_FB_ATY_CT */
525
526 static u32 atyfb_get_pixclock(struct fb_var_screeninfo *var, struct atyfb_par *par)
527 {
528 u32 pixclock = var->pixclock;
529 #ifdef CONFIG_FB_ATY_GENERIC_LCD
530 u32 lcd_on_off;
531 par->pll.ct.xres = 0;
532 if (par->lcd_table != 0) {
533 lcd_on_off = aty_ld_lcd(LCD_GEN_CNTL, par);
534 if(lcd_on_off & LCD_ON) {
535 par->pll.ct.xres = var->xres;
536 pixclock = par->lcd_pixclock;
537 }
538 }
539 #endif
540 return pixclock;
541 }
542
543 #if defined(CONFIG_PPC)
544
545 /*
546 * Apple monitor sense
547 */
548
549 static int __init read_aty_sense(const struct atyfb_par *par)
550 {
551 int sense, i;
552
553 aty_st_le32(GP_IO, 0x31003100, par); /* drive outputs high */
554 __delay(200);
555 aty_st_le32(GP_IO, 0, par); /* turn off outputs */
556 __delay(2000);
557 i = aty_ld_le32(GP_IO, par); /* get primary sense value */
558 sense = ((i & 0x3000) >> 3) | (i & 0x100);
559
560 /* drive each sense line low in turn and collect the other 2 */
561 aty_st_le32(GP_IO, 0x20000000, par); /* drive A low */
562 __delay(2000);
563 i = aty_ld_le32(GP_IO, par);
564 sense |= ((i & 0x1000) >> 7) | ((i & 0x100) >> 4);
565 aty_st_le32(GP_IO, 0x20002000, par); /* drive A high again */
566 __delay(200);
567
568 aty_st_le32(GP_IO, 0x10000000, par); /* drive B low */
569 __delay(2000);
570 i = aty_ld_le32(GP_IO, par);
571 sense |= ((i & 0x2000) >> 10) | ((i & 0x100) >> 6);
572 aty_st_le32(GP_IO, 0x10001000, par); /* drive B high again */
573 __delay(200);
574
575 aty_st_le32(GP_IO, 0x01000000, par); /* drive C low */
576 __delay(2000);
577 sense |= (aty_ld_le32(GP_IO, par) & 0x3000) >> 12;
578 aty_st_le32(GP_IO, 0, par); /* turn off outputs */
579 return sense;
580 }
581
582 #endif /* defined(CONFIG_PPC) */
583
584 /* ------------------------------------------------------------------------- */
585
586 /*
587 * CRTC programming
588 */
589
590 static void aty_get_crtc(const struct atyfb_par *par, struct crtc *crtc)
591 {
592 #ifdef CONFIG_FB_ATY_GENERIC_LCD
593 if (par->lcd_table != 0) {
594 if(!M64_HAS(LT_LCD_REGS)) {
595 crtc->lcd_index = aty_ld_le32(LCD_INDEX, par);
596 aty_st_le32(LCD_INDEX, crtc->lcd_index, par);
597 }
598 crtc->lcd_config_panel = aty_ld_lcd(CONFIG_PANEL, par);
599 crtc->lcd_gen_cntl = aty_ld_lcd(LCD_GEN_CNTL, par);
600
601
602 /* switch to non shadow registers */
603 aty_st_lcd(LCD_GEN_CNTL, crtc->lcd_gen_cntl &
604 ~(CRTC_RW_SELECT | SHADOW_EN | SHADOW_RW_EN), par);
605
606 /* save stretching */
607 crtc->horz_stretching = aty_ld_lcd(HORZ_STRETCHING, par);
608 crtc->vert_stretching = aty_ld_lcd(VERT_STRETCHING, par);
609 if (!M64_HAS(LT_LCD_REGS))
610 crtc->ext_vert_stretch = aty_ld_lcd(EXT_VERT_STRETCH, par);
611 }
612 #endif
613 crtc->h_tot_disp = aty_ld_le32(CRTC_H_TOTAL_DISP, par);
614 crtc->h_sync_strt_wid = aty_ld_le32(CRTC_H_SYNC_STRT_WID, par);
615 crtc->v_tot_disp = aty_ld_le32(CRTC_V_TOTAL_DISP, par);
616 crtc->v_sync_strt_wid = aty_ld_le32(CRTC_V_SYNC_STRT_WID, par);
617 crtc->vline_crnt_vline = aty_ld_le32(CRTC_VLINE_CRNT_VLINE, par);
618 crtc->off_pitch = aty_ld_le32(CRTC_OFF_PITCH, par);
619 crtc->gen_cntl = aty_ld_le32(CRTC_GEN_CNTL, par);
620
621 #ifdef CONFIG_FB_ATY_GENERIC_LCD
622 if (par->lcd_table != 0) {
623 /* switch to shadow registers */
624 aty_st_lcd(LCD_GEN_CNTL, (crtc->lcd_gen_cntl & ~CRTC_RW_SELECT) |
625 SHADOW_EN | SHADOW_RW_EN, par);
626
627 crtc->shadow_h_tot_disp = aty_ld_le32(CRTC_H_TOTAL_DISP, par);
628 crtc->shadow_h_sync_strt_wid = aty_ld_le32(CRTC_H_SYNC_STRT_WID, par);
629 crtc->shadow_v_tot_disp = aty_ld_le32(CRTC_V_TOTAL_DISP, par);
630 crtc->shadow_v_sync_strt_wid = aty_ld_le32(CRTC_V_SYNC_STRT_WID, par);
631
632 aty_st_le32(LCD_GEN_CNTL, crtc->lcd_gen_cntl, par);
633 }
634 #endif /* CONFIG_FB_ATY_GENERIC_LCD */
635 }
636
637 static void aty_set_crtc(const struct atyfb_par *par, const struct crtc *crtc)
638 {
639 #ifdef CONFIG_FB_ATY_GENERIC_LCD
640 if (par->lcd_table != 0) {
641 /* stop CRTC */
642 aty_st_le32(CRTC_GEN_CNTL, crtc->gen_cntl & ~(CRTC_EXT_DISP_EN | CRTC_EN), par);
643
644 /* update non-shadow registers first */
645 aty_st_lcd(CONFIG_PANEL, crtc->lcd_config_panel, par);
646 aty_st_lcd(LCD_GEN_CNTL, crtc->lcd_gen_cntl &
647 ~(CRTC_RW_SELECT | SHADOW_EN | SHADOW_RW_EN), par);
648
649 /* temporarily disable stretching */
650 aty_st_lcd(HORZ_STRETCHING,
651 crtc->horz_stretching &
652 ~(HORZ_STRETCH_MODE | HORZ_STRETCH_EN), par);
653 aty_st_lcd(VERT_STRETCHING,
654 crtc->vert_stretching &
655 ~(VERT_STRETCH_RATIO1 | VERT_STRETCH_RATIO2 |
656 VERT_STRETCH_USE0 | VERT_STRETCH_EN), par);
657 }
658 #endif
659 /* turn off CRT */
660 aty_st_le32(CRTC_GEN_CNTL, crtc->gen_cntl & ~CRTC_EN, par);
661
662 DPRINTK("setting up CRTC\n");
663 DPRINTK("set primary CRT to %ix%i %c%c composite %c\n",
664 ((((crtc->h_tot_disp>>16) & 0xff) + 1)<<3), (((crtc->v_tot_disp>>16) & 0x7ff) + 1),
665 (crtc->h_sync_strt_wid & 0x200000)?'N':'P', (crtc->v_sync_strt_wid & 0x200000)?'N':'P',
666 (crtc->gen_cntl & CRTC_CSYNC_EN)?'P':'N');
667
668 DPRINTK("CRTC_H_TOTAL_DISP: %x\n",crtc->h_tot_disp);
669 DPRINTK("CRTC_H_SYNC_STRT_WID: %x\n",crtc->h_sync_strt_wid);
670 DPRINTK("CRTC_V_TOTAL_DISP: %x\n",crtc->v_tot_disp);
671 DPRINTK("CRTC_V_SYNC_STRT_WID: %x\n",crtc->v_sync_strt_wid);
672 DPRINTK("CRTC_OFF_PITCH: %x\n", crtc->off_pitch);
673 DPRINTK("CRTC_VLINE_CRNT_VLINE: %x\n", crtc->vline_crnt_vline);
674 DPRINTK("CRTC_GEN_CNTL: %x\n",crtc->gen_cntl);
675
676 aty_st_le32(CRTC_H_TOTAL_DISP, crtc->h_tot_disp, par);
677 aty_st_le32(CRTC_H_SYNC_STRT_WID, crtc->h_sync_strt_wid, par);
678 aty_st_le32(CRTC_V_TOTAL_DISP, crtc->v_tot_disp, par);
679 aty_st_le32(CRTC_V_SYNC_STRT_WID, crtc->v_sync_strt_wid, par);
680 aty_st_le32(CRTC_OFF_PITCH, crtc->off_pitch, par);
681 aty_st_le32(CRTC_VLINE_CRNT_VLINE, crtc->vline_crnt_vline, par);
682
683 aty_st_le32(CRTC_GEN_CNTL, crtc->gen_cntl, par);
684 #if 0
685 FIXME
686 if (par->accel_flags & FB_ACCELF_TEXT)
687 aty_init_engine(par, info);
688 #endif
689 #ifdef CONFIG_FB_ATY_GENERIC_LCD
690 /* after setting the CRTC registers we should set the LCD registers. */
691 if (par->lcd_table != 0) {
692 /* switch to shadow registers */
693 aty_st_lcd(LCD_GEN_CNTL, (crtc->lcd_gen_cntl & ~CRTC_RW_SELECT) |
694 (SHADOW_EN | SHADOW_RW_EN), par);
695
696 DPRINTK("set secondary CRT to %ix%i %c%c\n",
697 ((((crtc->shadow_h_tot_disp>>16) & 0xff) + 1)<<3), (((crtc->shadow_v_tot_disp>>16) & 0x7ff) + 1),
698 (crtc->shadow_h_sync_strt_wid & 0x200000)?'N':'P', (crtc->shadow_v_sync_strt_wid & 0x200000)?'N':'P');
699
700 DPRINTK("SHADOW CRTC_H_TOTAL_DISP: %x\n", crtc->shadow_h_tot_disp);
701 DPRINTK("SHADOW CRTC_H_SYNC_STRT_WID: %x\n", crtc->shadow_h_sync_strt_wid);
702 DPRINTK("SHADOW CRTC_V_TOTAL_DISP: %x\n", crtc->shadow_v_tot_disp);
703 DPRINTK("SHADOW CRTC_V_SYNC_STRT_WID: %x\n", crtc->shadow_v_sync_strt_wid);
704
705 aty_st_le32(CRTC_H_TOTAL_DISP, crtc->shadow_h_tot_disp, par);
706 aty_st_le32(CRTC_H_SYNC_STRT_WID, crtc->shadow_h_sync_strt_wid, par);
707 aty_st_le32(CRTC_V_TOTAL_DISP, crtc->shadow_v_tot_disp, par);
708 aty_st_le32(CRTC_V_SYNC_STRT_WID, crtc->shadow_v_sync_strt_wid, par);
709
710 /* restore CRTC selection & shadow state and enable stretching */
711 DPRINTK("LCD_GEN_CNTL: %x\n", crtc->lcd_gen_cntl);
712 DPRINTK("HORZ_STRETCHING: %x\n", crtc->horz_stretching);
713 DPRINTK("VERT_STRETCHING: %x\n", crtc->vert_stretching);
714 if(!M64_HAS(LT_LCD_REGS))
715 DPRINTK("EXT_VERT_STRETCH: %x\n", crtc->ext_vert_stretch);
716
717 aty_st_lcd(LCD_GEN_CNTL, crtc->lcd_gen_cntl, par);
718 aty_st_lcd(HORZ_STRETCHING, crtc->horz_stretching, par);
719 aty_st_lcd(VERT_STRETCHING, crtc->vert_stretching, par);
720 if(!M64_HAS(LT_LCD_REGS)) {
721 aty_st_lcd(EXT_VERT_STRETCH, crtc->ext_vert_stretch, par);
722 aty_ld_le32(LCD_INDEX, par);
723 aty_st_le32(LCD_INDEX, crtc->lcd_index, par);
724 }
725 }
726 #endif /* CONFIG_FB_ATY_GENERIC_LCD */
727 }
728
729 static int aty_var_to_crtc(const struct fb_info *info,
730 const struct fb_var_screeninfo *var, struct crtc *crtc)
731 {
732 struct atyfb_par *par = (struct atyfb_par *) info->par;
733 u32 xres, yres, vxres, vyres, xoffset, yoffset, bpp;
734 u32 sync, vmode, vdisplay;
735 u32 h_total, h_disp, h_sync_strt, h_sync_end, h_sync_dly, h_sync_wid, h_sync_pol;
736 u32 v_total, v_disp, v_sync_strt, v_sync_end, v_sync_wid, v_sync_pol, c_sync;
737 u32 pix_width, dp_pix_width, dp_chain_mask;
738
739 /* input */
740 xres = var->xres;
741 yres = var->yres;
742 vxres = var->xres_virtual;
743 vyres = var->yres_virtual;
744 xoffset = var->xoffset;
745 yoffset = var->yoffset;
746 bpp = var->bits_per_pixel;
747 if (bpp == 16)
748 bpp = (var->green.length == 5) ? 15 : 16;
749 sync = var->sync;
750 vmode = var->vmode;
751
752 /* convert (and round up) and validate */
753 if (vxres < xres + xoffset)
754 vxres = xres + xoffset;
755 h_disp = xres;
756
757 if (vyres < yres + yoffset)
758 vyres = yres + yoffset;
759 v_disp = yres;
760
761 if (bpp <= 8) {
762 bpp = 8;
763 pix_width = CRTC_PIX_WIDTH_8BPP;
764 dp_pix_width =
765 HOST_8BPP | SRC_8BPP | DST_8BPP |
766 BYTE_ORDER_LSB_TO_MSB;
767 dp_chain_mask = DP_CHAIN_8BPP;
768 } else if (bpp <= 15) {
769 bpp = 16;
770 pix_width = CRTC_PIX_WIDTH_15BPP;
771 dp_pix_width = HOST_15BPP | SRC_15BPP | DST_15BPP |
772 BYTE_ORDER_LSB_TO_MSB;
773 dp_chain_mask = DP_CHAIN_15BPP;
774 } else if (bpp <= 16) {
775 bpp = 16;
776 pix_width = CRTC_PIX_WIDTH_16BPP;
777 dp_pix_width = HOST_16BPP | SRC_16BPP | DST_16BPP |
778 BYTE_ORDER_LSB_TO_MSB;
779 dp_chain_mask = DP_CHAIN_16BPP;
780 } else if (bpp <= 24 && M64_HAS(INTEGRATED)) {
781 bpp = 24;
782 pix_width = CRTC_PIX_WIDTH_24BPP;
783 dp_pix_width =
784 HOST_8BPP | SRC_8BPP | DST_8BPP |
785 BYTE_ORDER_LSB_TO_MSB;
786 dp_chain_mask = DP_CHAIN_24BPP;
787 } else if (bpp <= 32) {
788 bpp = 32;
789 pix_width = CRTC_PIX_WIDTH_32BPP;
790 dp_pix_width = HOST_32BPP | SRC_32BPP | DST_32BPP |
791 BYTE_ORDER_LSB_TO_MSB;
792 dp_chain_mask = DP_CHAIN_32BPP;
793 } else
794 FAIL("invalid bpp");
795
796 if (vxres * vyres * bpp / 8 > info->fix.smem_len)
797 FAIL("not enough video RAM");
798
799 h_sync_pol = sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1;
800 v_sync_pol = sync & FB_SYNC_VERT_HIGH_ACT ? 0 : 1;
801
802 if((xres > 1600) || (yres > 1200)) {
803 FAIL("MACH64 chips are designed for max 1600x1200\n"
804 "select anoter resolution.");
805 }
806 h_sync_strt = h_disp + var->right_margin;
807 h_sync_end = h_sync_strt + var->hsync_len;
808 h_sync_dly = var->right_margin & 7;
809 h_total = h_sync_end + h_sync_dly + var->left_margin;
810
811 v_sync_strt = v_disp + var->lower_margin;
812 v_sync_end = v_sync_strt + var->vsync_len;
813 v_total = v_sync_end + var->upper_margin;
814
815 #ifdef CONFIG_FB_ATY_GENERIC_LCD
816 if (par->lcd_table != 0) {
817 if(!M64_HAS(LT_LCD_REGS)) {
818 u32 lcd_index = aty_ld_le32(LCD_INDEX, par);
819 crtc->lcd_index = lcd_index &
820 ~(LCD_INDEX_MASK | LCD_DISPLAY_DIS | LCD_SRC_SEL | CRTC2_DISPLAY_DIS);
821 aty_st_le32(LCD_INDEX, lcd_index, par);
822 }
823
824 if (!M64_HAS(MOBIL_BUS))
825 crtc->lcd_index |= CRTC2_DISPLAY_DIS;
826
827 crtc->lcd_config_panel = aty_ld_lcd(CONFIG_PANEL, par) | 0x4000;
828 crtc->lcd_gen_cntl = aty_ld_lcd(LCD_GEN_CNTL, par) & ~CRTC_RW_SELECT;
829
830 crtc->lcd_gen_cntl &=
831 ~(HORZ_DIVBY2_EN | DIS_HOR_CRT_DIVBY2 | TVCLK_PM_EN |
832 /*VCLK_DAC_PM_EN | USE_SHADOWED_VEND |*/
833 USE_SHADOWED_ROWCUR | SHADOW_EN | SHADOW_RW_EN);
834 crtc->lcd_gen_cntl |= DONT_SHADOW_VPAR | LOCK_8DOT;
835
836 if((crtc->lcd_gen_cntl & LCD_ON) &&
837 ((xres > par->lcd_width) || (yres > par->lcd_height))) {
838 /* We cannot display the mode on the LCD. If the CRT is enabled
839 we can turn off the LCD.
840 If the CRT is off, it isn't a good idea to switch it on; we don't
841 know if one is connected. So it's better to fail then.
842 */
843 if (crtc->lcd_gen_cntl & CRT_ON) {
844 PRINTKI("Disable lcd panel, because video mode does not fit.\n");
845 crtc->lcd_gen_cntl &= ~LCD_ON;
846 /*aty_st_lcd(LCD_GEN_CNTL, crtc->lcd_gen_cntl, par);*/
847 } else {
848 FAIL("Video mode exceeds size of lcd panel.\nConnect this computer to a conventional monitor if you really need this mode.");
849 }
850 }
851 }
852
853 if ((par->lcd_table != 0) && (crtc->lcd_gen_cntl & LCD_ON)) {
854 int VScan = 1;
855 /* bpp -> bytespp, 1,4 -> 0; 8 -> 2; 15,16 -> 1; 24 -> 6; 32 -> 5
856 const u8 DFP_h_sync_dly_LT[] = { 0, 2, 1, 6, 5 };
857 const u8 ADD_to_strt_wid_and_dly_LT_DAC[] = { 0, 5, 6, 9, 9, 12, 12 }; */
858
859 vmode &= ~(FB_VMODE_DOUBLE | FB_VMODE_INTERLACED);
860
861 /* This is horror! When we simulate, say 640x480 on an 800x600
862 lcd monitor, the CRTC should be programmed 800x600 values for
863 the non visible part, but 640x480 for the visible part.
864 This code has been tested on a laptop with it's 1400x1050 lcd
865 monitor and a conventional monitor both switched on.
866 Tested modes: 1280x1024, 1152x864, 1024x768, 800x600,
867 works with little glitches also with DOUBLESCAN modes
868 */
869 if (yres < par->lcd_height) {
870 VScan = par->lcd_height / yres;
871 if(VScan > 1) {
872 VScan = 2;
873 vmode |= FB_VMODE_DOUBLE;
874 }
875 }
876
877 h_sync_strt = h_disp + par->lcd_right_margin;
878 h_sync_end = h_sync_strt + par->lcd_hsync_len;
879 h_sync_dly = /*DFP_h_sync_dly[ ( bpp + 1 ) / 3 ]; */par->lcd_hsync_dly;
880 h_total = h_disp + par->lcd_hblank_len;
881
882 v_sync_strt = v_disp + par->lcd_lower_margin / VScan;
883 v_sync_end = v_sync_strt + par->lcd_vsync_len / VScan;
884 v_total = v_disp + par->lcd_vblank_len / VScan;
885 }
886 #endif /* CONFIG_FB_ATY_GENERIC_LCD */
887
888 h_disp = (h_disp >> 3) - 1;
889 h_sync_strt = (h_sync_strt >> 3) - 1;
890 h_sync_end = (h_sync_end >> 3) - 1;
891 h_total = (h_total >> 3) - 1;
892 h_sync_wid = h_sync_end - h_sync_strt;
893
894 FAIL_MAX("h_disp too large", h_disp, 0xff);
895 FAIL_MAX("h_sync_strt too large", h_sync_strt, 0x1ff);
896 /*FAIL_MAX("h_sync_wid too large", h_sync_wid, 0x1f);*/
897 if(h_sync_wid > 0x1f)
898 h_sync_wid = 0x1f;
899 FAIL_MAX("h_total too large", h_total, 0x1ff);
900
901 if (vmode & FB_VMODE_DOUBLE) {
902 v_disp <<= 1;
903 v_sync_strt <<= 1;
904 v_sync_end <<= 1;
905 v_total <<= 1;
906 }
907
908 vdisplay = yres;
909 #ifdef CONFIG_FB_ATY_GENERIC_LCD
910 if ((par->lcd_table != 0) && (crtc->lcd_gen_cntl & LCD_ON))
911 vdisplay = par->lcd_height;
912 #endif
913
914 if(vdisplay < 400) {
915 h_sync_pol = 1;
916 v_sync_pol = 0;
917 } else if(vdisplay < 480) {
918 h_sync_pol = 0;
919 v_sync_pol = 1;
920 } else if(vdisplay < 768) {
921 h_sync_pol = 0;
922 v_sync_pol = 0;
923 } else {
924 h_sync_pol = 1;
925 v_sync_pol = 1;
926 }
927
928 v_disp--;
929 v_sync_strt--;
930 v_sync_end--;
931 v_total--;
932 v_sync_wid = v_sync_end - v_sync_strt;
933
934 FAIL_MAX("v_disp too large", v_disp, 0x7ff);
935 FAIL_MAX("v_sync_stsrt too large", v_sync_strt, 0x7ff);
936 /*FAIL_MAX("v_sync_wid too large", v_sync_wid, 0x1f);*/
937 if(v_sync_wid > 0x1f)
938 v_sync_wid = 0x1f;
939 FAIL_MAX("v_total too large", v_total, 0x7ff);
940
941 c_sync = sync & FB_SYNC_COMP_HIGH_ACT ? CRTC_CSYNC_EN : 0;
942
943 /* output */
944 crtc->vxres = vxres;
945 crtc->vyres = vyres;
946 crtc->xoffset = xoffset;
947 crtc->yoffset = yoffset;
948 crtc->bpp = bpp;
949 crtc->off_pitch = ((yoffset*vxres+xoffset)*bpp/64) | (vxres<<19);
950 crtc->vline_crnt_vline = 0;
951
952 crtc->h_tot_disp = h_total | (h_disp<<16);
953 crtc->h_sync_strt_wid = (h_sync_strt & 0xff) | (h_sync_dly<<8) |
954 ((h_sync_strt & 0x100)<<4) | (h_sync_wid<<16) | (h_sync_pol<<21);
955 crtc->v_tot_disp = v_total | (v_disp<<16);
956 crtc->v_sync_strt_wid = v_sync_strt | (v_sync_wid<<16) | (v_sync_pol<<21);
957
958 /* crtc->gen_cntl = aty_ld_le32(CRTC_GEN_CNTL, par) & CRTC_PRESERVED_MASK; */
959 crtc->gen_cntl = CRTC_EXT_DISP_EN | CRTC_EN | pix_width | c_sync;
960 crtc->gen_cntl |= CRTC_VGA_LINEAR;
961
962 /* Enable doublescan mode if requested */
963 if (vmode & FB_VMODE_DOUBLE)
964 crtc->gen_cntl |= CRTC_DBL_SCAN_EN;
965 /* Enable interlaced mode if requested */
966 if (vmode & FB_VMODE_INTERLACED)
967 crtc->gen_cntl |= CRTC_INTERLACE_EN;
968 #ifdef CONFIG_FB_ATY_GENERIC_LCD
969 if (par->lcd_table != 0) {
970 vdisplay = yres;
971 if(vmode & FB_VMODE_DOUBLE)
972 vdisplay <<= 1;
973 if(vmode & FB_VMODE_INTERLACED) {
974 vdisplay >>= 1;
975
976 /* The prefered mode for the lcd is not interlaced, so disable it if
977 it was enabled. For doublescan there is no problem, because we can
978 compensate for it in the hardware stretching (we stretch half as much)
979 */
980 vmode &= ~FB_VMODE_INTERLACED;
981 /*crtc->gen_cntl &= ~CRTC_INTERLACE_EN;*/
982 }
983 crtc->gen_cntl &= ~(CRTC2_EN | CRTC2_PIX_WIDTH);
984 crtc->lcd_gen_cntl &= ~(HORZ_DIVBY2_EN | DIS_HOR_CRT_DIVBY2 |
985 /*TVCLK_PM_EN | VCLK_DAC_PM_EN |*/
986 USE_SHADOWED_VEND | USE_SHADOWED_ROWCUR | SHADOW_EN | SHADOW_RW_EN);
987 crtc->lcd_gen_cntl |= (DONT_SHADOW_VPAR/* | LOCK_8DOT*/);
988
989 /* MOBILITY M1 tested, FIXME: LT */
990 crtc->horz_stretching = aty_ld_lcd(HORZ_STRETCHING, par);
991 if (!M64_HAS(LT_LCD_REGS))
992 crtc->ext_vert_stretch = aty_ld_lcd(EXT_VERT_STRETCH, par) &
993 ~(AUTO_VERT_RATIO | VERT_STRETCH_MODE | VERT_STRETCH_RATIO3);
994
995 crtc->horz_stretching &=
996 ~(HORZ_STRETCH_RATIO | HORZ_STRETCH_LOOP | AUTO_HORZ_RATIO |
997 HORZ_STRETCH_MODE | HORZ_STRETCH_EN);
998 if (xres < par->lcd_width) {
999 do {
1000 /*
1001 * The horizontal blender misbehaves when HDisplay is less than a
1002 * a certain threshold (440 for a 1024-wide panel). It doesn't
1003 * stretch such modes enough. Use pixel replication instead of
1004 * blending to stretch modes that can be made to exactly fit the
1005 * panel width. The undocumented "NoLCDBlend" option allows the
1006 * pixel-replicated mode to be slightly wider or narrower than the
1007 * panel width. It also causes a mode that is exactly half as wide
1008 * as the panel to be pixel-replicated, rather than blended.
1009 */
1010 int HDisplay = xres & ~7;
1011 int nStretch = par->lcd_width / HDisplay;
1012 int Remainder = par->lcd_width % HDisplay;
1013
1014 if ((!Remainder && ((nStretch > 2))) ||
1015 (((HDisplay * 16) / par->lcd_width) < 7)) {
1016 static const char StretchLoops[] = {10, 12, 13, 15, 16};
1017 int horz_stretch_loop = -1, BestRemainder;
1018 int Numerator = HDisplay, Denominator = par->lcd_width;
1019 int Index = 5;
1020 ATIReduceRatio(&Numerator, &Denominator);
1021
1022 BestRemainder = (Numerator * 16) / Denominator;
1023 while (--Index >= 0) {
1024 Remainder = ((Denominator - Numerator) * StretchLoops[Index]) %
1025 Denominator;
1026 if (Remainder < BestRemainder) {
1027 horz_stretch_loop = Index;
1028 if (!(BestRemainder = Remainder))
1029 break;
1030 }
1031 }
1032
1033 if ((horz_stretch_loop >= 0) && !BestRemainder) {
1034 int horz_stretch_ratio = 0, Accumulator = 0;
1035 int reuse_previous = 1;
1036
1037 Index = StretchLoops[horz_stretch_loop];
1038
1039 while (--Index >= 0) {
1040 if (Accumulator > 0)
1041 horz_stretch_ratio |= reuse_previous;
1042 else
1043 Accumulator += Denominator;
1044 Accumulator -= Numerator;
1045 reuse_previous <<= 1;
1046 }
1047
1048 crtc->horz_stretching |= (HORZ_STRETCH_EN |
1049 ((horz_stretch_loop & HORZ_STRETCH_LOOP) << 16) |
1050 (horz_stretch_ratio & HORZ_STRETCH_RATIO));
1051 break; /* Out of the do { ... } while (0) */
1052 }
1053 }
1054
1055 crtc->horz_stretching |= (HORZ_STRETCH_MODE | HORZ_STRETCH_EN |
1056 (((HDisplay * (HORZ_STRETCH_BLEND + 1)) / par->lcd_width) & HORZ_STRETCH_BLEND));
1057 } while (0);
1058 }
1059
1060 if (vdisplay < par->lcd_height) {
1061 crtc->vert_stretching = (VERT_STRETCH_USE0 | VERT_STRETCH_EN |
1062 (((vdisplay * (VERT_STRETCH_RATIO0 + 1)) / par->lcd_height) & VERT_STRETCH_RATIO0));
1063
1064 if (!M64_HAS(LT_LCD_REGS) &&
1065 xres <= (M64_HAS(MOBIL_BUS)?1024:800))
1066 crtc->ext_vert_stretch |= VERT_STRETCH_MODE;
1067 } else {
1068 /*
1069 * Don't use vertical blending if the mode is too wide or not
1070 * vertically stretched.
1071 */
1072 crtc->vert_stretching = 0;
1073 }
1074 /* copy to shadow crtc */
1075 crtc->shadow_h_tot_disp = crtc->h_tot_disp;
1076 crtc->shadow_h_sync_strt_wid = crtc->h_sync_strt_wid;
1077 crtc->shadow_v_tot_disp = crtc->v_tot_disp;
1078 crtc->shadow_v_sync_strt_wid = crtc->v_sync_strt_wid;
1079 }
1080 #endif /* CONFIG_FB_ATY_GENERIC_LCD */
1081
1082 if (M64_HAS(MAGIC_FIFO)) {
1083 /* Not VTB/GTB */
1084 /* FIXME: magic FIFO values */
1085 crtc->gen_cntl |= (aty_ld_le32(CRTC_GEN_CNTL, par) & CRTC2_PIX_WIDTH);
1086 }
1087 crtc->dp_pix_width = dp_pix_width;
1088 crtc->dp_chain_mask = dp_chain_mask;
1089
1090 return 0;
1091 }
1092
1093 static int aty_crtc_to_var(const struct crtc *crtc, struct fb_var_screeninfo *var)
1094 {
1095 u32 xres, yres, bpp, left, right, upper, lower, hslen, vslen, sync;
1096 u32 h_total, h_disp, h_sync_strt, h_sync_dly, h_sync_wid,
1097 h_sync_pol;
1098 u32 v_total, v_disp, v_sync_strt, v_sync_wid, v_sync_pol, c_sync;
1099 u32 pix_width;
1100 u32 double_scan, interlace;
1101
1102 /* input */
1103 h_total = crtc->h_tot_disp & 0x1ff;
1104 h_disp = (crtc->h_tot_disp >> 16) & 0xff;
1105 h_sync_strt = (crtc->h_sync_strt_wid & 0xff) | ((crtc->h_sync_strt_wid >> 4) & 0x100);
1106 h_sync_dly = (crtc->h_sync_strt_wid >> 8) & 0x7;
1107 h_sync_wid = (crtc->h_sync_strt_wid >> 16) & 0x1f;
1108 h_sync_pol = (crtc->h_sync_strt_wid >> 21) & 0x1;
1109 v_total = crtc->v_tot_disp & 0x7ff;
1110 v_disp = (crtc->v_tot_disp >> 16) & 0x7ff;
1111 v_sync_strt = crtc->v_sync_strt_wid & 0x7ff;
1112 v_sync_wid = (crtc->v_sync_strt_wid >> 16) & 0x1f;
1113 v_sync_pol = (crtc->v_sync_strt_wid >> 21) & 0x1;
1114 c_sync = crtc->gen_cntl & CRTC_CSYNC_EN ? 1 : 0;
1115 pix_width = crtc->gen_cntl & CRTC_PIX_WIDTH_MASK;
1116 double_scan = crtc->gen_cntl & CRTC_DBL_SCAN_EN;
1117 interlace = crtc->gen_cntl & CRTC_INTERLACE_EN;
1118
1119 /* convert */
1120 xres = (h_disp + 1) * 8;
1121 yres = v_disp + 1;
1122 left = (h_total - h_sync_strt - h_sync_wid) * 8 - h_sync_dly;
1123 right = (h_sync_strt - h_disp) * 8 + h_sync_dly;
1124 hslen = h_sync_wid * 8;
1125 upper = v_total - v_sync_strt - v_sync_wid;
1126 lower = v_sync_strt - v_disp;
1127 vslen = v_sync_wid;
1128 sync = (h_sync_pol ? 0 : FB_SYNC_HOR_HIGH_ACT) |
1129 (v_sync_pol ? 0 : FB_SYNC_VERT_HIGH_ACT) |
1130 (c_sync ? FB_SYNC_COMP_HIGH_ACT : 0);
1131
1132 switch (pix_width) {
1133 #if 0
1134 case CRTC_PIX_WIDTH_4BPP:
1135 bpp = 4;
1136 var->red.offset = 0;
1137 var->red.length = 8;
1138 var->green.offset = 0;
1139 var->green.length = 8;
1140 var->blue.offset = 0;
1141 var->blue.length = 8;
1142 var->transp.offset = 0;
1143 var->transp.length = 0;
1144 break;
1145 #endif
1146 case CRTC_PIX_WIDTH_8BPP:
1147 bpp = 8;
1148 var->red.offset = 0;
1149 var->red.length = 8;
1150 var->green.offset = 0;
1151 var->green.length = 8;
1152 var->blue.offset = 0;
1153 var->blue.length = 8;
1154 var->transp.offset = 0;
1155 var->transp.length = 0;
1156 break;
1157 case CRTC_PIX_WIDTH_15BPP: /* RGB 555 */
1158 bpp = 16;
1159 var->red.offset = 10;
1160 var->red.length = 5;
1161 var->green.offset = 5;
1162 var->green.length = 5;
1163 var->blue.offset = 0;
1164 var->blue.length = 5;
1165 var->transp.offset = 0;
1166 var->transp.length = 0;
1167 break;
1168 case CRTC_PIX_WIDTH_16BPP: /* RGB 565 */
1169 bpp = 16;
1170 var->red.offset = 11;
1171 var->red.length = 5;
1172 var->green.offset = 5;
1173 var->green.length = 6;
1174 var->blue.offset = 0;
1175 var->blue.length = 5;
1176 var->transp.offset = 0;
1177 var->transp.length = 0;
1178 break;
1179 case CRTC_PIX_WIDTH_24BPP: /* RGB 888 */
1180 bpp = 24;
1181 var->red.offset = 16;
1182 var->red.length = 8;
1183 var->green.offset = 8;
1184 var->green.length = 8;
1185 var->blue.offset = 0;
1186 var->blue.length = 8;
1187 var->transp.offset = 0;
1188 var->transp.length = 0;
1189 break;
1190 case CRTC_PIX_WIDTH_32BPP: /* ARGB 8888 */
1191 bpp = 32;
1192 var->red.offset = 16;
1193 var->red.length = 8;
1194 var->green.offset = 8;
1195 var->green.length = 8;
1196 var->blue.offset = 0;
1197 var->blue.length = 8;
1198 var->transp.offset = 24;
1199 var->transp.length = 8;
1200 break;
1201 default:
1202 FAIL("Invalid pixel width");
1203 }
1204
1205 /* output */
1206 var->xres = xres;
1207 var->yres = yres;
1208 var->xres_virtual = crtc->vxres;
1209 var->yres_virtual = crtc->vyres;
1210 var->bits_per_pixel = bpp;
1211 var->left_margin = left;
1212 var->right_margin = right;
1213 var->upper_margin = upper;
1214 var->lower_margin = lower;
1215 var->hsync_len = hslen;
1216 var->vsync_len = vslen;
1217 var->sync = sync;
1218 var->vmode = FB_VMODE_NONINTERLACED;
1219 /* In double scan mode, the vertical parameters are doubled, so we need to
1220 half them to get the right values.
1221 In interlaced mode the values are already correct, so no correction is
1222 necessary.
1223 */
1224 if (interlace)
1225 var->vmode = FB_VMODE_INTERLACED;
1226
1227 if (double_scan) {
1228 var->vmode = FB_VMODE_DOUBLE;
1229 var->yres>>=1;
1230 var->upper_margin>>=1;
1231 var->lower_margin>>=1;
1232 var->vsync_len>>=1;
1233 }
1234
1235 return 0;
1236 }
1237
1238 /* ------------------------------------------------------------------------- */
1239
1240 static int atyfb_set_par(struct fb_info *info)
1241 {
1242 struct atyfb_par *par = (struct atyfb_par *) info->par;
1243 struct fb_var_screeninfo *var = &info->var;
1244 u32 tmp, pixclock;
1245 int err;
1246 #ifdef DEBUG
1247 struct fb_var_screeninfo debug;
1248 u32 pixclock_in_ps;
1249 #endif
1250 if (par->asleep)
1251 return 0;
1252
1253 if ((err = aty_var_to_crtc(info, var, &par->crtc)))
1254 return err;
1255
1256 pixclock = atyfb_get_pixclock(var, par);
1257
1258 if (pixclock == 0) {
1259 FAIL("Invalid pixclock");
1260 } else {
1261 if((err = par->pll_ops->var_to_pll(info, pixclock, var->bits_per_pixel, &par->pll)))
1262 return err;
1263 }
1264
1265 par->accel_flags = var->accel_flags; /* hack */
1266
1267 if (par->blitter_may_be_busy)
1268 wait_for_idle(par);
1269
1270 aty_set_crtc(par, &par->crtc);
1271 par->dac_ops->set_dac(info, &par->pll, var->bits_per_pixel, par->accel_flags);
1272 par->pll_ops->set_pll(info, &par->pll);
1273
1274 #ifdef DEBUG
1275 if(par->pll_ops && par->pll_ops->pll_to_var)
1276 pixclock_in_ps = par->pll_ops->pll_to_var(info, &(par->pll));
1277 else
1278 pixclock_in_ps = 0;
1279
1280 if(0 == pixclock_in_ps) {
1281 PRINTKE("ALERT ops->pll_to_var get 0\n");
1282 pixclock_in_ps = pixclock;
1283 }
1284
1285 memset(&debug, 0, sizeof(debug));
1286 if(!aty_crtc_to_var(&(par->crtc), &debug)) {
1287 u32 hSync, vRefresh;
1288 u32 h_disp, h_sync_strt, h_sync_end, h_total;
1289 u32 v_disp, v_sync_strt, v_sync_end, v_total;
1290
1291 h_disp = debug.xres;
1292 h_sync_strt = h_disp + debug.right_margin;
1293 h_sync_end = h_sync_strt + debug.hsync_len;
1294 h_total = h_sync_end + debug.left_margin;
1295 v_disp = debug.yres;
1296 v_sync_strt = v_disp + debug.lower_margin;
1297 v_sync_end = v_sync_strt + debug.vsync_len;
1298 v_total = v_sync_end + debug.upper_margin;
1299
1300 hSync = 1000000000 / (pixclock_in_ps * h_total);
1301 vRefresh = (hSync * 1000) / v_total;
1302 if (par->crtc.gen_cntl & CRTC_INTERLACE_EN)
1303 vRefresh *= 2;
1304 if (par->crtc.gen_cntl & CRTC_DBL_SCAN_EN)
1305 vRefresh /= 2;
1306
1307 DPRINTK("atyfb_set_par\n");
1308 DPRINTK(" Set Visible Mode to %ix%i-%i\n", var->xres, var->yres, var->bits_per_pixel);
1309 DPRINTK(" Virtual resolution %ix%i, pixclock_in_ps %i (calculated %i)\n",
1310 var->xres_virtual, var->yres_virtual, pixclock, pixclock_in_ps);
1311 DPRINTK(" Dot clock: %i MHz\n", 1000000 / pixclock_in_ps);
1312 DPRINTK(" Horizontal sync: %i kHz\n", hSync);
1313 DPRINTK(" Vertical refresh: %i Hz\n", vRefresh);
1314 DPRINTK(" x style: %i.%03i %i %i %i %i %i %i %i %i\n",
1315 1000000 / pixclock_in_ps, 1000000 % pixclock_in_ps,
1316 h_disp, h_sync_strt, h_sync_end, h_total,
1317 v_disp, v_sync_strt, v_sync_end, v_total);
1318 DPRINTK(" fb style: %i %i %i %i %i %i %i %i %i\n",
1319 pixclock_in_ps,
1320 debug.left_margin, h_disp, debug.right_margin, debug.hsync_len,
1321 debug.upper_margin, v_disp, debug.lower_margin, debug.vsync_len);
1322 }
1323 #endif /* DEBUG */
1324
1325 if (!M64_HAS(INTEGRATED)) {
1326 /* Don't forget MEM_CNTL */
1327 tmp = aty_ld_le32(MEM_CNTL, par) & 0xf0ffffff;
1328 switch (var->bits_per_pixel) {
1329 case 8:
1330 tmp |= 0x02000000;
1331 break;
1332 case 16:
1333 tmp |= 0x03000000;
1334 break;
1335 case 32:
1336 tmp |= 0x06000000;
1337 break;
1338 }
1339 aty_st_le32(MEM_CNTL, tmp, par);
1340 } else {
1341 tmp = aty_ld_le32(MEM_CNTL, par) & 0xf00fffff;
1342 if (!M64_HAS(MAGIC_POSTDIV))
1343 tmp |= par->mem_refresh_rate << 20;
1344 switch (var->bits_per_pixel) {
1345 case 8:
1346 case 24:
1347 tmp |= 0x00000000;
1348 break;
1349 case 16:
1350 tmp |= 0x04000000;
1351 break;
1352 case 32:
1353 tmp |= 0x08000000;
1354 break;
1355 }
1356 if (M64_HAS(CT_BUS)) {
1357 aty_st_le32(DAC_CNTL, 0x87010184, par);
1358 aty_st_le32(BUS_CNTL, 0x680000f9, par);
1359 } else if (M64_HAS(VT_BUS)) {
1360 aty_st_le32(DAC_CNTL, 0x87010184, par);
1361 aty_st_le32(BUS_CNTL, 0x680000f9, par);
1362 } else if (M64_HAS(MOBIL_BUS)) {
1363 aty_st_le32(DAC_CNTL, 0x80010102, par);
1364 aty_st_le32(BUS_CNTL, 0x7b33a040 | (par->aux_start ? BUS_APER_REG_DIS : 0), par);
1365 } else {
1366 /* GT */
1367 aty_st_le32(DAC_CNTL, 0x86010102, par);
1368 aty_st_le32(BUS_CNTL, 0x7b23a040 | (par->aux_start ? BUS_APER_REG_DIS : 0), par);
1369 aty_st_le32(EXT_MEM_CNTL, aty_ld_le32(EXT_MEM_CNTL, par) | 0x5000001, par);
1370 }
1371 aty_st_le32(MEM_CNTL, tmp, par);
1372 }
1373 aty_st_8(DAC_MASK, 0xff, par);
1374
1375 info->fix.line_length = var->xres_virtual * var->bits_per_pixel/8;
1376 info->fix.visual = var->bits_per_pixel <= 8 ?
1377 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
1378
1379 /* Initialize the graphics engine */
1380 if (par->accel_flags & FB_ACCELF_TEXT)
1381 aty_init_engine(par, info);
1382
1383 #ifdef CONFIG_BOOTX_TEXT
1384 btext_update_display(info->fix.smem_start,
1385 (((par->crtc.h_tot_disp >> 16) & 0xff) + 1) * 8,
1386 ((par->crtc.v_tot_disp >> 16) & 0x7ff) + 1,
1387 var->bits_per_pixel,
1388 par->crtc.vxres * var->bits_per_pixel / 8);
1389 #endif /* CONFIG_BOOTX_TEXT */
1390 #if 0
1391 /* switch to accelerator mode */
1392 if (!(par->crtc.gen_cntl & CRTC_EXT_DISP_EN))
1393 aty_st_le32(CRTC_GEN_CNTL, par->crtc.gen_cntl | CRTC_EXT_DISP_EN, par);
1394 #endif
1395 #ifdef DEBUG
1396 {
1397 /* dump non shadow CRTC, pll, LCD registers */
1398 int i; u32 base;
1399
1400 /* CRTC registers */
1401 base = 0x2000;
1402 printk("debug atyfb: Mach64 non-shadow register values:");
1403 for (i = 0; i < 256; i = i+4) {
1404 if(i%16 == 0) printk("\ndebug atyfb: 0x%04X: ", base + i);
1405 printk(" %08X", aty_ld_le32(i, par));
1406 }
1407 printk("\n\n");
1408
1409 #ifdef CONFIG_FB_ATY_CT
1410 /* PLL registers */
1411 base = 0x00;
1412 printk("debug atyfb: Mach64 PLL register values:");
1413 for (i = 0; i < 64; i++) {
1414 if(i%16 == 0) printk("\ndebug atyfb: 0x%02X: ", base + i);
1415 if(i%4 == 0) printk(" ");
1416 printk("%02X", aty_ld_pll_ct(i, par));
1417 }
1418 printk("\n\n");
1419 #endif /* CONFIG_FB_ATY_CT */
1420
1421 #ifdef CONFIG_FB_ATY_GENERIC_LCD
1422 if (par->lcd_table != 0) {
1423 /* LCD registers */
1424 base = 0x00;
1425 printk("debug atyfb: LCD register values:");
1426 if(M64_HAS(LT_LCD_REGS)) {
1427 for(i = 0; i <= POWER_MANAGEMENT; i++) {
1428 if(i == EXT_VERT_STRETCH)
1429 continue;
1430 printk("\ndebug atyfb: 0x%04X: ", lt_lcd_regs[i]);
1431 printk(" %08X", aty_ld_lcd(i, par));
1432 }
1433
1434 } else {
1435 for (i = 0; i < 64; i++) {
1436 if(i%4 == 0) printk("\ndebug atyfb: 0x%02X: ", base + i);
1437 printk(" %08X", aty_ld_lcd(i, par));
1438 }
1439 }
1440 printk("\n\n");
1441 }
1442 #endif /* CONFIG_FB_ATY_GENERIC_LCD */
1443 }
1444 #endif /* DEBUG */
1445 return 0;
1446 }
1447
1448 static int atyfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1449 {
1450 struct atyfb_par *par = (struct atyfb_par *) info->par;
1451 int err;
1452 struct crtc crtc;
1453 union aty_pll pll;
1454 u32 pixclock;
1455
1456 memcpy(&pll, &(par->pll), sizeof(pll));
1457
1458 if((err = aty_var_to_crtc(info, var, &crtc)))
1459 return err;
1460
1461 pixclock = atyfb_get_pixclock(var, par);
1462
1463 if (pixclock == 0) {
1464 FAIL("Invalid pixclock");
1465 } else {
1466 if((err = par->pll_ops->var_to_pll(info, pixclock, var->bits_per_pixel, &pll)))
1467 return err;
1468 }
1469
1470 if (var->accel_flags & FB_ACCELF_TEXT)
1471 info->var.accel_flags = FB_ACCELF_TEXT;
1472 else
1473 info->var.accel_flags = 0;
1474
1475 #if 0 /* fbmon is not done. uncomment for 2.5.x -brad */
1476 if (!fbmon_valid_timings(pixclock, htotal, vtotal, info))
1477 return -EINVAL;
1478 #endif
1479 aty_crtc_to_var(&crtc, var);
1480 var->pixclock = par->pll_ops->pll_to_var(info, &pll);
1481 return 0;
1482 }
1483
1484 static void set_off_pitch(struct atyfb_par *par, const struct fb_info *info)
1485 {
1486 u32 xoffset = info->var.xoffset;
1487 u32 yoffset = info->var.yoffset;
1488 u32 vxres = par->crtc.vxres;
1489 u32 bpp = info->var.bits_per_pixel;
1490
1491 par->crtc.off_pitch = ((yoffset * vxres + xoffset) * bpp / 64) | (vxres << 19);
1492 }
1493
1494
1495 /*
1496 * Open/Release the frame buffer device
1497 */
1498
1499 static int atyfb_open(struct fb_info *info, int user)
1500 {
1501 struct atyfb_par *par = (struct atyfb_par *) info->par;
1502
1503 if (user) {
1504 par->open++;
1505 #ifdef __sparc__
1506 par->mmaped = 0;
1507 #endif
1508 }
1509 return (0);
1510 }
1511
1512 static irqreturn_t aty_irq(int irq, void *dev_id, struct pt_regs *fp)
1513 {
1514 struct atyfb_par *par = dev_id;
1515 int handled = 0;
1516 u32 int_cntl;
1517
1518 spin_lock(&par->int_lock);
1519
1520 int_cntl = aty_ld_le32(CRTC_INT_CNTL, par);
1521
1522 if (int_cntl & CRTC_VBLANK_INT) {
1523 /* clear interrupt */
1524 aty_st_le32(CRTC_INT_CNTL, (int_cntl & CRTC_INT_EN_MASK) | CRTC_VBLANK_INT_AK, par);
1525 par->vblank.count++;
1526 if (par->vblank.pan_display) {
1527 par->vblank.pan_display = 0;
1528 aty_st_le32(CRTC_OFF_PITCH, par->crtc.off_pitch, par);
1529 }
1530 wake_up_interruptible(&par->vblank.wait);
1531 handled = 1;
1532 }
1533
1534 spin_unlock(&par->int_lock);
1535
1536 return IRQ_RETVAL(handled);
1537 }
1538
1539 static int aty_enable_irq(struct atyfb_par *par, int reenable)
1540 {
1541 u32 int_cntl;
1542
1543 if (!test_and_set_bit(0, &par->irq_flags)) {
1544 if (request_irq(par->irq, aty_irq, SA_SHIRQ, "atyfb", par)) {
1545 clear_bit(0, &par->irq_flags);
1546 return -EINVAL;
1547 }
1548 spin_lock_irq(&par->int_lock);
1549 int_cntl = aty_ld_le32(CRTC_INT_CNTL, par) & CRTC_INT_EN_MASK;
1550 /* clear interrupt */
1551 aty_st_le32(CRTC_INT_CNTL, int_cntl | CRTC_VBLANK_INT_AK, par);
1552 /* enable interrupt */
1553 aty_st_le32(CRTC_INT_CNTL, int_cntl | CRTC_VBLANK_INT_EN, par);
1554 spin_unlock_irq(&par->int_lock);
1555 } else if (reenable) {
1556 spin_lock_irq(&par->int_lock);
1557 int_cntl = aty_ld_le32(CRTC_INT_CNTL, par) & CRTC_INT_EN_MASK;
1558 if (!(int_cntl & CRTC_VBLANK_INT_EN)) {
1559 printk("atyfb: someone disabled IRQ [%08x]\n", int_cntl);
1560 /* re-enable interrupt */
1561 aty_st_le32(CRTC_INT_CNTL, int_cntl | CRTC_VBLANK_INT_EN, par );
1562 }
1563 spin_unlock_irq(&par->int_lock);
1564 }
1565
1566 return 0;
1567 }
1568
1569 static int aty_disable_irq(struct atyfb_par *par)
1570 {
1571 u32 int_cntl;
1572
1573 if (test_and_clear_bit(0, &par->irq_flags)) {
1574 if (par->vblank.pan_display) {
1575 par->vblank.pan_display = 0;
1576 aty_st_le32(CRTC_OFF_PITCH, par->crtc.off_pitch, par);
1577 }
1578 spin_lock_irq(&par->int_lock);
1579 int_cntl = aty_ld_le32(CRTC_INT_CNTL, par) & CRTC_INT_EN_MASK;
1580 /* disable interrupt */
1581 aty_st_le32(CRTC_INT_CNTL, int_cntl & ~CRTC_VBLANK_INT_EN, par );
1582 spin_unlock_irq(&par->int_lock);
1583 free_irq(par->irq, par);
1584 }
1585
1586 return 0;
1587 }
1588
1589 static int atyfb_release(struct fb_info *info, int user)
1590 {
1591 struct atyfb_par *par = (struct atyfb_par *) info->par;
1592 if (user) {
1593 par->open--;
1594 mdelay(1);
1595 wait_for_idle(par);
1596 if (!par->open) {
1597 #ifdef __sparc__
1598 int was_mmaped = par->mmaped;
1599
1600 par->mmaped = 0;
1601
1602 if (was_mmaped) {
1603 struct fb_var_screeninfo var;
1604
1605 /* Now reset the default display config, we have no
1606 * idea what the program(s) which mmap'd the chip did
1607 * to the configuration, nor whether it restored it
1608 * correctly.
1609 */
1610 var = default_var;
1611 if (noaccel)
1612 var.accel_flags &= ~FB_ACCELF_TEXT;
1613 else
1614 var.accel_flags |= FB_ACCELF_TEXT;
1615 if (var.yres == var.yres_virtual) {
1616 u32 videoram = (info->fix.smem_len - (PAGE_SIZE << 2));
1617 var.yres_virtual = ((videoram * 8) / var.bits_per_pixel) / var.xres_virtual;
1618 if (var.yres_virtual < var.yres)
1619 var.yres_virtual = var.yres;
1620 }
1621 }
1622 #endif
1623 aty_disable_irq(par);
1624 }
1625 }
1626 return (0);
1627 }
1628
1629 /*
1630 * Pan or Wrap the Display
1631 *
1632 * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
1633 */
1634
1635 static int atyfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
1636 {
1637 struct atyfb_par *par = (struct atyfb_par *) info->par;
1638 u32 xres, yres, xoffset, yoffset;
1639
1640 xres = (((par->crtc.h_tot_disp >> 16) & 0xff) + 1) * 8;
1641 yres = ((par->crtc.v_tot_disp >> 16) & 0x7ff) + 1;
1642 if (par->crtc.gen_cntl & CRTC_DBL_SCAN_EN)
1643 yres >>= 1;
1644 xoffset = (var->xoffset + 7) & ~7;
1645 yoffset = var->yoffset;
1646 if (xoffset + xres > par->crtc.vxres || yoffset + yres > par->crtc.vyres)
1647 return -EINVAL;
1648 info->var.xoffset = xoffset;
1649 info->var.yoffset = yoffset;
1650 if (par->asleep)
1651 return 0;
1652
1653 set_off_pitch(par, info);
1654 if ((var->activate & FB_ACTIVATE_VBL) && !aty_enable_irq(par, 0)) {
1655 par->vblank.pan_display = 1;
1656 } else {
1657 par->vblank.pan_display = 0;
1658 aty_st_le32(CRTC_OFF_PITCH, par->crtc.off_pitch, par);
1659 }
1660
1661 return 0;
1662 }
1663
1664 static int aty_waitforvblank(struct atyfb_par *par, u32 crtc)
1665 {
1666 struct aty_interrupt *vbl;
1667 unsigned int count;
1668 int ret;
1669
1670 switch (crtc) {
1671 case 0:
1672 vbl = &par->vblank;
1673 break;
1674 default:
1675 return -ENODEV;
1676 }
1677
1678 ret = aty_enable_irq(par, 0);
1679 if (ret)
1680 return ret;
1681
1682 count = vbl->count;
1683 ret = wait_event_interruptible_timeout(vbl->wait, count != vbl->count, HZ/10);
1684 if (ret < 0) {
1685 return ret;
1686 }
1687 if (ret == 0) {
1688 aty_enable_irq(par, 1);
1689 return -ETIMEDOUT;
1690 }
1691
1692 return 0;
1693 }
1694
1695
1696 #ifdef DEBUG
1697 #define ATYIO_CLKR 0x41545900 /* ATY\00 */
1698 #define ATYIO_CLKW 0x41545901 /* ATY\01 */
1699
1700 struct atyclk {
1701 u32 ref_clk_per;
1702 u8 pll_ref_div;
1703 u8 mclk_fb_div;
1704 u8 mclk_post_div; /* 1,2,3,4,8 */
1705 u8 mclk_fb_mult; /* 2 or 4 */
1706 u8 xclk_post_div; /* 1,2,3,4,8 */
1707 u8 vclk_fb_div;
1708 u8 vclk_post_div; /* 1,2,3,4,6,8,12 */
1709 u32 dsp_xclks_per_row; /* 0-16383 */
1710 u32 dsp_loop_latency; /* 0-15 */
1711 u32 dsp_precision; /* 0-7 */
1712 u32 dsp_on; /* 0-2047 */
1713 u32 dsp_off; /* 0-2047 */
1714 };
1715
1716 #define ATYIO_FEATR 0x41545902 /* ATY\02 */
1717 #define ATYIO_FEATW 0x41545903 /* ATY\03 */
1718 #endif
1719
1720 #ifndef FBIO_WAITFORVSYNC
1721 #define FBIO_WAITFORVSYNC _IOW('F', 0x20, __u32)
1722 #endif
1723
1724 static int atyfb_ioctl(struct inode *inode, struct file *file, u_int cmd,
1725 u_long arg, struct fb_info *info)
1726 {
1727 struct atyfb_par *par = (struct atyfb_par *) info->par;
1728 #ifdef __sparc__
1729 struct fbtype fbtyp;
1730 #endif
1731
1732 switch (cmd) {
1733 #ifdef __sparc__
1734 case FBIOGTYPE:
1735 fbtyp.fb_type = FBTYPE_PCI_GENERIC;
1736 fbtyp.fb_width = par->crtc.vxres;
1737 fbtyp.fb_height = par->crtc.vyres;
1738 fbtyp.fb_depth = info->var.bits_per_pixel;
1739 fbtyp.fb_cmsize = info->cmap.len;
1740 fbtyp.fb_size = info->fix.smem_len;
1741 if (copy_to_user((struct fbtype __user *) arg, &fbtyp, sizeof(fbtyp)))
1742 return -EFAULT;
1743 break;
1744 #endif /* __sparc__ */
1745
1746 case FBIO_WAITFORVSYNC:
1747 {
1748 u32 crtc;
1749
1750 if (get_user(crtc, (__u32 __user *) arg))
1751 return -EFAULT;
1752
1753 return aty_waitforvblank(par, crtc);
1754 }
1755 break;
1756
1757 #if defined(DEBUG) && defined(CONFIG_FB_ATY_CT)
1758 case ATYIO_CLKR:
1759 if (M64_HAS(INTEGRATED)) {
1760 struct atyclk clk;
1761 union aty_pll *pll = &(par->pll);
1762 u32 dsp_config = pll->ct.dsp_config;
1763 u32 dsp_on_off = pll->ct.dsp_on_off;
1764 clk.ref_clk_per = par->ref_clk_per;
1765 clk.pll_ref_div = pll->ct.pll_ref_div;
1766 clk.mclk_fb_div = pll->ct.mclk_fb_div;
1767 clk.mclk_post_div = pll->ct.mclk_post_div_real;
1768 clk.mclk_fb_mult = pll->ct.mclk_fb_mult;
1769 clk.xclk_post_div = pll->ct.xclk_post_div_real;
1770 clk.vclk_fb_div = pll->ct.vclk_fb_div;
1771 clk.vclk_post_div = pll->ct.vclk_post_div_real;
1772 clk.dsp_xclks_per_row = dsp_config & 0x3fff;
1773 clk.dsp_loop_latency = (dsp_config >> 16) & 0xf;
1774 clk.dsp_precision = (dsp_config >> 20) & 7;
1775 clk.dsp_off = dsp_on_off & 0x7ff;
1776 clk.dsp_on = (dsp_on_off >> 16) & 0x7ff;
1777 if (copy_to_user((struct atyclk __user *) arg, &clk,
1778 sizeof(clk)))
1779 return -EFAULT;
1780 } else
1781 return -EINVAL;
1782 break;
1783 case ATYIO_CLKW:
1784 if (M64_HAS(INTEGRATED)) {
1785 struct atyclk clk;
1786 union aty_pll *pll = &(par->pll);
1787 if (copy_from_user(&clk, (struct atyclk __user *) arg, sizeof(clk)))
1788 return -EFAULT;
1789 par->ref_clk_per = clk.ref_clk_per;
1790 pll->ct.pll_ref_div = clk.pll_ref_div;
1791 pll->ct.mclk_fb_div = clk.mclk_fb_div;
1792 pll->ct.mclk_post_div_real = clk.mclk_post_div;
1793 pll->ct.mclk_fb_mult = clk.mclk_fb_mult;
1794 pll->ct.xclk_post_div_real = clk.xclk_post_div;
1795 pll->ct.vclk_fb_div = clk.vclk_fb_div;
1796 pll->ct.vclk_post_div_real = clk.vclk_post_div;
1797 pll->ct.dsp_config = (clk.dsp_xclks_per_row & 0x3fff) |
1798 ((clk.dsp_loop_latency & 0xf)<<16)| ((clk.dsp_precision & 7)<<20);
1799 pll->ct.dsp_on_off = (clk.dsp_off & 0x7ff) | ((clk.dsp_on & 0x7ff)<<16);
1800 /*aty_calc_pll_ct(info, &pll->ct);*/
1801 aty_set_pll_ct(info, pll);
1802 } else
1803 return -EINVAL;
1804 break;
1805 case ATYIO_FEATR:
1806 if (get_user(par->features, (u32 __user *) arg))
1807 return -EFAULT;
1808 break;
1809 case ATYIO_FEATW:
1810 if (put_user(par->features, (u32 __user *) arg))
1811 return -EFAULT;
1812 break;
1813 #endif /* DEBUG && CONFIG_FB_ATY_CT */
1814 default:
1815 return -EINVAL;
1816 }
1817 return 0;
1818 }
1819
1820 static int atyfb_sync(struct fb_info *info)
1821 {
1822 struct atyfb_par *par = (struct atyfb_par *) info->par;
1823
1824 if (par->blitter_may_be_busy)
1825 wait_for_idle(par);
1826 return 0;
1827 }
1828
1829 #ifdef __sparc__
1830 static int atyfb_mmap(struct fb_info *info, struct file *file, struct vm_area_struct *vma)
1831 {
1832 struct atyfb_par *par = (struct atyfb_par *) info->par;
1833 unsigned int size, page, map_size = 0;
1834 unsigned long map_offset = 0;
1835 unsigned long off;
1836 int i;
1837
1838 if (!par->mmap_map)
1839 return -ENXIO;
1840
1841 if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
1842 return -EINVAL;
1843
1844 off = vma->vm_pgoff << PAGE_SHIFT;
1845 size = vma->vm_end - vma->vm_start;
1846
1847 /* To stop the swapper from even considering these pages. */
1848 vma->vm_flags |= (VM_IO | VM_RESERVED);
1849
1850 if (((vma->vm_pgoff == 0) && (size == info->fix.smem_len)) ||
1851 ((off == info->fix.smem_len) && (size == PAGE_SIZE)))
1852 off += 0x8000000000000000UL;
1853
1854 vma->vm_pgoff = off >> PAGE_SHIFT; /* propagate off changes */
1855
1856 /* Each page, see which map applies */
1857 for (page = 0; page < size;) {
1858 map_size = 0;
1859 for (i = 0; par->mmap_map[i].size; i++) {
1860 unsigned long start = par->mmap_map[i].voff;
1861 unsigned long end = start + par->mmap_map[i].size;
1862 unsigned long offset = off + page;
1863
1864 if (start > offset)
1865 continue;
1866 if (offset >= end)
1867 continue;
1868
1869 map_size = par->mmap_map[i].size - (offset - start);
1870 map_offset =
1871 par->mmap_map[i].poff + (offset - start);
1872 break;
1873 }
1874 if (!map_size) {
1875 page += PAGE_SIZE;
1876 continue;
1877 }
1878 if (page + map_size > size)
1879 map_size = size - page;
1880
1881 pgprot_val(vma->vm_page_prot) &=
1882 ~(par->mmap_map[i].prot_mask);
1883 pgprot_val(vma->vm_page_prot) |= par->mmap_map[i].prot_flag;
1884
1885 if (remap_pfn_range(vma, vma->vm_start + page,
1886 map_offset >> PAGE_SHIFT, map_size, vma->vm_page_prot))
1887 return -EAGAIN;
1888
1889 page += map_size;
1890 }
1891
1892 if (!map_size)
1893 return -EINVAL;
1894
1895 if (!par->mmaped)
1896 par->mmaped = 1;
1897 return 0;
1898 }
1899
1900 static struct {
1901 u32 yoffset;
1902 u8 r[2][256];
1903 u8 g[2][256];
1904 u8 b[2][256];
1905 } atyfb_save;
1906
1907 static void atyfb_save_palette(struct atyfb_par *par, int enter)
1908 {
1909 int i, tmp;
1910
1911 for (i = 0; i < 256; i++) {
1912 tmp = aty_ld_8(DAC_CNTL, par) & 0xfc;
1913 if (M64_HAS(EXTRA_BRIGHT))
1914 tmp |= 0x2;
1915 aty_st_8(DAC_CNTL, tmp, par);
1916 aty_st_8(DAC_MASK, 0xff, par);
1917
1918 writeb(i, &par->aty_cmap_regs->rindex);
1919 atyfb_save.r[enter][i] = readb(&par->aty_cmap_regs->lut);
1920 atyfb_save.g[enter][i] = readb(&par->aty_cmap_regs->lut);
1921 atyfb_save.b[enter][i] = readb(&par->aty_cmap_regs->lut);
1922 writeb(i, &par->aty_cmap_regs->windex);
1923 writeb(atyfb_save.r[1 - enter][i],
1924 &par->aty_cmap_regs->lut);
1925 writeb(atyfb_save.g[1 - enter][i],
1926 &par->aty_cmap_regs->lut);
1927 writeb(atyfb_save.b[1 - enter][i],
1928 &par->aty_cmap_regs->lut);
1929 }
1930 }
1931
1932 static void atyfb_palette(int enter)
1933 {
1934 struct atyfb_par *par;
1935 struct fb_info *info;
1936 int i;
1937
1938 for (i = 0; i < FB_MAX; i++) {
1939 info = registered_fb[i];
1940 if (info && info->fbops == &atyfb_ops) {
1941 par = (struct atyfb_par *) info->par;
1942
1943 atyfb_save_palette(par, enter);
1944 if (enter) {
1945 atyfb_save.yoffset = info->var.yoffset;
1946 info->var.yoffset = 0;
1947 set_off_pitch(par, info);
1948 } else {
1949 info->var.yoffset = atyfb_save.yoffset;
1950 set_off_pitch(par, info);
1951 }
1952 aty_st_le32(CRTC_OFF_PITCH, par->crtc.off_pitch, par);
1953 break;
1954 }
1955 }
1956 }
1957 #endif /* __sparc__ */
1958
1959
1960
1961 #if defined(CONFIG_PM) && defined(CONFIG_PCI)
1962
1963 /* Power management routines. Those are used for PowerBook sleep.
1964 */
1965 static int aty_power_mgmt(int sleep, struct atyfb_par *par)
1966 {
1967 u32 pm;
1968 int timeout;
1969
1970 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
1971 pm = (pm & ~PWR_MGT_MODE_MASK) | PWR_MGT_MODE_REG;
1972 aty_st_lcd(POWER_MANAGEMENT, pm, par);
1973 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
1974
1975 timeout = 2000;
1976 if (sleep) {
1977 /* Sleep */
1978 pm &= ~PWR_MGT_ON;
1979 aty_st_lcd(POWER_MANAGEMENT, pm, par);
1980 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
1981 udelay(10);
1982 pm &= ~(PWR_BLON | AUTO_PWR_UP);
1983 pm |= SUSPEND_NOW;
1984 aty_st_lcd(POWER_MANAGEMENT, pm, par);
1985 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
1986 udelay(10);
1987 pm |= PWR_MGT_ON;
1988 aty_st_lcd(POWER_MANAGEMENT, pm, par);
1989 do {
1990 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
1991 mdelay(1);
1992 if ((--timeout) == 0)
1993 break;
1994 } while ((pm & PWR_MGT_STATUS_MASK) != PWR_MGT_STATUS_SUSPEND);
1995 } else {
1996 /* Wakeup */
1997 pm &= ~PWR_MGT_ON;
1998 aty_st_lcd(POWER_MANAGEMENT, pm, par);
1999 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
2000 udelay(10);
2001 pm &= ~SUSPEND_NOW;
2002 pm |= (PWR_BLON | AUTO_PWR_UP);
2003 aty_st_lcd(POWER_MANAGEMENT, pm, par);
2004 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
2005 udelay(10);
2006 pm |= PWR_MGT_ON;
2007 aty_st_lcd(POWER_MANAGEMENT, pm, par);
2008 do {
2009 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
2010 mdelay(1);
2011 if ((--timeout) == 0)
2012 break;
2013 } while ((pm & PWR_MGT_STATUS_MASK) != 0);
2014 }
2015 mdelay(500);
2016
2017 return timeout ? 0 : -EIO;
2018 }
2019
2020 static int atyfb_pci_suspend(struct pci_dev *pdev, pm_message_t state)
2021 {
2022 struct fb_info *info = pci_get_drvdata(pdev);
2023 struct atyfb_par *par = (struct atyfb_par *) info->par;
2024
2025 #ifdef CONFIG_PPC_PMAC
2026 /* HACK ALERT ! Once I find a proper way to say to each driver
2027 * individually what will happen with it's PCI slot, I'll change
2028 * that. On laptops, the AGP slot is just unclocked, so D2 is
2029 * expected, while on desktops, the card is powered off
2030 */
2031 if (state >= 3)
2032 state = 2;
2033 #endif /* CONFIG_PPC_PMAC */
2034
2035 if (state != 2 || state == pdev->dev.power.power_state)
2036 return 0;
2037
2038 acquire_console_sem();
2039
2040 fb_set_suspend(info, 1);
2041
2042 /* Idle & reset engine */
2043 wait_for_idle(par);
2044 aty_reset_engine(par);
2045
2046 /* Blank display and LCD */
2047 atyfb_blank(FB_BLANK_POWERDOWN, info);
2048
2049 par->asleep = 1;
2050 par->lock_blank = 1;
2051
2052 /* Set chip to "suspend" mode */
2053 if (aty_power_mgmt(1, par)) {
2054 par->asleep = 0;
2055 par->lock_blank = 0;
2056 atyfb_blank(FB_BLANK_UNBLANK, info);
2057 fb_set_suspend(info, 0);
2058 release_console_sem();
2059 return -EIO;
2060 }
2061
2062 release_console_sem();
2063
2064 pdev->dev.power.power_state = state;
2065
2066 return 0;
2067 }
2068
2069 static int atyfb_pci_resume(struct pci_dev *pdev)
2070 {
2071 struct fb_info *info = pci_get_drvdata(pdev);
2072 struct atyfb_par *par = (struct atyfb_par *) info->par;
2073
2074 if (pdev->dev.power.power_state == 0)
2075 return 0;
2076
2077 acquire_console_sem();
2078
2079 if (pdev->dev.power.power_state == 2)
2080 aty_power_mgmt(0, par);
2081 par->asleep = 0;
2082
2083 /* Restore display */
2084 atyfb_set_par(info);
2085
2086 /* Refresh */
2087 fb_set_suspend(info, 0);
2088
2089 /* Unblank */
2090 par->lock_blank = 0;
2091 atyfb_blank(FB_BLANK_UNBLANK, info);
2092
2093 release_console_sem();
2094
2095 pdev->dev.power.power_state = PMSG_ON;
2096
2097 return 0;
2098 }
2099
2100 #endif /* defined(CONFIG_PM) && defined(CONFIG_PCI) */
2101
2102 #ifdef CONFIG_PMAC_BACKLIGHT
2103
2104 /*
2105 * LCD backlight control
2106 */
2107
2108 static int backlight_conv[] = {
2109 0x00, 0x3f, 0x4c, 0x59, 0x66, 0x73, 0x80, 0x8d,
2110 0x9a, 0xa7, 0xb4, 0xc1, 0xcf, 0xdc, 0xe9, 0xff
2111 };
2112
2113 static int aty_set_backlight_enable(int on, int level, void *data)
2114 {
2115 struct fb_info *info = (struct fb_info *) data;
2116 struct atyfb_par *par = (struct atyfb_par *) info->par;
2117 unsigned int reg = aty_ld_lcd(LCD_MISC_CNTL, par);
2118
2119 reg |= (BLMOD_EN | BIASMOD_EN);
2120 if (on && level > BACKLIGHT_OFF) {
2121 reg &= ~BIAS_MOD_LEVEL_MASK;
2122 reg |= (backlight_conv[level] << BIAS_MOD_LEVEL_SHIFT);
2123 } else {
2124 reg &= ~BIAS_MOD_LEVEL_MASK;
2125 reg |= (backlight_conv[0] << BIAS_MOD_LEVEL_SHIFT);
2126 }
2127 aty_st_lcd(LCD_MISC_CNTL, reg, par);
2128 return 0;
2129 }
2130
2131 static int aty_set_backlight_level(int level, void *data)
2132 {
2133 return aty_set_backlight_enable(1, level, data);
2134 }
2135
2136 static struct backlight_controller aty_backlight_controller = {
2137 aty_set_backlight_enable,
2138 aty_set_backlight_level
2139 };
2140 #endif /* CONFIG_PMAC_BACKLIGHT */
2141
2142 static void __init aty_calc_mem_refresh(struct atyfb_par *par, int xclk)
2143 {
2144 const int ragepro_tbl[] = {
2145 44, 50, 55, 66, 75, 80, 100
2146 };
2147 const int ragexl_tbl[] = {
2148 50, 66, 75, 83, 90, 95, 100, 105,
2149 110, 115, 120, 125, 133, 143, 166
2150 };
2151 const int *refresh_tbl;
2152 int i, size;
2153
2154 if (IS_XL(par->pci_id) || IS_MOBILITY(par->pci_id)) {
2155 refresh_tbl = ragexl_tbl;
2156 size = sizeof(ragexl_tbl)/sizeof(int);
2157 } else {
2158 refresh_tbl = ragepro_tbl;
2159 size = sizeof(ragepro_tbl)/sizeof(int);
2160 }
2161
2162 for (i=0; i < size; i++) {
2163 if (xclk < refresh_tbl[i])
2164 break;
2165 }
2166 par->mem_refresh_rate = i;
2167 }
2168
2169 /*
2170 * Initialisation
2171 */
2172
2173 static struct fb_info *fb_list = NULL;
2174
2175 static int __init aty_init(struct fb_info *info, const char *name)
2176 {
2177 struct atyfb_par *par = (struct atyfb_par *) info->par;
2178 const char *ramname = NULL, *xtal;
2179 int gtb_memsize;
2180 struct fb_var_screeninfo var;
2181 u8 pll_ref_div;
2182 u32 i;
2183 #if defined(CONFIG_PPC)
2184 int sense;
2185 #endif
2186
2187 init_waitqueue_head(&par->vblank.wait);
2188 spin_lock_init(&par->int_lock);
2189
2190 par->aty_cmap_regs =
2191 (struct aty_cmap_regs __iomem *) (par->ati_regbase + 0xc0);
2192
2193 #ifdef CONFIG_PPC_PMAC
2194 /* The Apple iBook1 uses non-standard memory frequencies. We detect it
2195 * and set the frequency manually. */
2196 if (machine_is_compatible("PowerBook2,1")) {
2197 par->pll_limits.mclk = 70;
2198 par->pll_limits.xclk = 53;
2199 }
2200 #endif
2201 if (pll)
2202 par->pll_limits.pll_max = pll;
2203 if (mclk)
2204 par->pll_limits.mclk = mclk;
2205 if (xclk)
2206 par->pll_limits.xclk = xclk;
2207
2208 aty_calc_mem_refresh(par, par->pll_limits.xclk);
2209 par->pll_per = 1000000/par->pll_limits.pll_max;
2210 par->mclk_per = 1000000/par->pll_limits.mclk;
2211 par->xclk_per = 1000000/par->pll_limits.xclk;
2212
2213 par->ref_clk_per = 1000000000000ULL / 14318180;
2214 xtal = "14.31818";
2215
2216 #ifdef CONFIG_FB_ATY_GX
2217 if (!M64_HAS(INTEGRATED)) {
2218 u32 stat0;
2219 u8 dac_type, dac_subtype, clk_type;
2220 stat0 = aty_ld_le32(CONFIG_STAT0, par);
2221 par->bus_type = (stat0 >> 0) & 0x07;
2222 par->ram_type = (stat0 >> 3) & 0x07;
2223 ramname = aty_gx_ram[par->ram_type];
2224 /* FIXME: clockchip/RAMDAC probing? */
2225 dac_type = (aty_ld_le32(DAC_CNTL, par) >> 16) & 0x07;
2226 #ifdef CONFIG_ATARI
2227 clk_type = CLK_ATI18818_1;
2228 dac_type = (stat0 >> 9) & 0x07;
2229 if (dac_type == 0x07)
2230 dac_subtype = DAC_ATT20C408;
2231 else
2232 dac_subtype = (aty_ld_8(SCRATCH_REG1 + 1, par) & 0xF0) | dac_type;
2233 #else
2234 dac_type = DAC_IBMRGB514;
2235 dac_subtype = DAC_IBMRGB514;
2236 clk_type = CLK_IBMRGB514;
2237 #endif
2238 switch (dac_subtype) {
2239 case DAC_IBMRGB514:
2240 par->dac_ops = &aty_dac_ibm514;
2241 break;
2242 case DAC_ATI68860_B:
2243 case DAC_ATI68860_C:
2244 par->dac_ops = &aty_dac_ati68860b;
2245 break;
2246 case DAC_ATT20C408:
2247 case DAC_ATT21C498:
2248 par->dac_ops = &aty_dac_att21c498;
2249 break;
2250 default:
2251 PRINTKI("aty_init: DAC type not implemented yet!\n");
2252 par->dac_ops = &aty_dac_unsupported;
2253 break;
2254 }
2255 switch (clk_type) {
2256 case CLK_ATI18818_1:
2257 par->pll_ops = &aty_pll_ati18818_1;
2258 break;
2259 case CLK_STG1703:
2260 par->pll_ops = &aty_pll_stg1703;
2261 break;
2262 case CLK_CH8398:
2263 par->pll_ops = &aty_pll_ch8398;
2264 break;
2265 case CLK_ATT20C408:
2266 par->pll_ops = &aty_pll_att20c408;
2267 break;
2268 case CLK_IBMRGB514:
2269 par->pll_ops = &aty_pll_ibm514;
2270 break;
2271 default:
2272 PRINTKI("aty_init: CLK type not implemented yet!");
2273 par->pll_ops = &aty_pll_unsupported;
2274 break;
2275 }
2276 }
2277 #endif /* CONFIG_FB_ATY_GX */
2278 #ifdef CONFIG_FB_ATY_CT
2279 if (M64_HAS(INTEGRATED)) {
2280 par->dac_ops = &aty_dac_ct;
2281 par->pll_ops = &aty_pll_ct;
2282 par->bus_type = PCI;
2283 #ifdef CONFIG_FB_ATY_XL_INIT
2284 if (IS_XL(par->pci_id))
2285 atyfb_xl_init(info);
2286 #endif
2287 par->ram_type = (aty_ld_le32(CONFIG_STAT0, par) & 0x07);
2288 ramname = aty_ct_ram[par->ram_type];
2289 /* for many chips, the mclk is 67 MHz for SDRAM, 63 MHz otherwise */
2290 if (par->pll_limits.mclk == 67 && par->ram_type < SDRAM)
2291 par->pll_limits.mclk = 63;
2292 }
2293
2294 if (M64_HAS(GTB_DSP)
2295 && (pll_ref_div = aty_ld_pll_ct(PLL_REF_DIV, par))) {
2296 int diff1, diff2;
2297 diff1 = 510 * 14 / pll_ref_div - par->pll_limits.pll_max;
2298 diff2 = 510 * 29 / pll_ref_div - par->pll_limits.pll_max;
2299 if (diff1 < 0)
2300 diff1 = -diff1;
2301 if (diff2 < 0)
2302 diff2 = -diff2;
2303 if (diff2 < diff1) {
2304 par->ref_clk_per = 1000000000000ULL / 29498928;
2305 xtal = "29.498928";
2306 }
2307 }
2308 #endif /* CONFIG_FB_ATY_CT */
2309
2310 /* save previous video mode */
2311 aty_get_crtc(par, &saved_crtc);
2312 if(par->pll_ops->get_pll)
2313 par->pll_ops->get_pll(info, &saved_pll);
2314
2315 i = aty_ld_le32(MEM_CNTL, par);
2316 gtb_memsize = M64_HAS(GTB_DSP);
2317 if (gtb_memsize)
2318 switch (i & 0xF) { /* 0xF used instead of MEM_SIZE_ALIAS */
2319 case MEM_SIZE_512K:
2320 info->fix.smem_len = 0x80000;
2321 break;
2322 case MEM_SIZE_1M:
2323 info->fix.smem_len = 0x100000;
2324 break;
2325 case MEM_SIZE_2M_GTB:
2326 info->fix.smem_len = 0x200000;
2327 break;
2328 case MEM_SIZE_4M_GTB:
2329 info->fix.smem_len = 0x400000;
2330 break;
2331 case MEM_SIZE_6M_GTB:
2332 info->fix.smem_len = 0x600000;
2333 break;
2334 case MEM_SIZE_8M_GTB:
2335 info->fix.smem_len = 0x800000;
2336 break;
2337 default:
2338 info->fix.smem_len = 0x80000;
2339 } else
2340 switch (i & MEM_SIZE_ALIAS) {
2341 case MEM_SIZE_512K:
2342 info->fix.smem_len = 0x80000;
2343 break;
2344 case MEM_SIZE_1M:
2345 info->fix.smem_len = 0x100000;
2346 break;
2347 case MEM_SIZE_2M:
2348 info->fix.smem_len = 0x200000;
2349 break;
2350 case MEM_SIZE_4M:
2351 info->fix.smem_len = 0x400000;
2352 break;
2353 case MEM_SIZE_6M:
2354 info->fix.smem_len = 0x600000;
2355 break;
2356 case MEM_SIZE_8M:
2357 info->fix.smem_len = 0x800000;
2358 break;
2359 default:
2360 info->fix.smem_len = 0x80000;
2361 }
2362
2363 if (M64_HAS(MAGIC_VRAM_SIZE)) {
2364 if (aty_ld_le32(CONFIG_STAT1, par) & 0x40000000)
2365 info->fix.smem_len += 0x400000;
2366 }
2367
2368 if (vram) {
2369 info->fix.smem_len = vram * 1024;
2370 i = i & ~(gtb_memsize ? 0xF : MEM_SIZE_ALIAS);
2371 if (info->fix.smem_len <= 0x80000)
2372 i |= MEM_SIZE_512K;
2373 else if (info->fix.smem_len <= 0x100000)
2374 i |= MEM_SIZE_1M;
2375 else if (info->fix.smem_len <= 0x200000)
2376 i |= gtb_memsize ? MEM_SIZE_2M_GTB : MEM_SIZE_2M;
2377 else if (info->fix.smem_len <= 0x400000)
2378 i |= gtb_memsize ? MEM_SIZE_4M_GTB : MEM_SIZE_4M;
2379 else if (info->fix.smem_len <= 0x600000)
2380 i |= gtb_memsize ? MEM_SIZE_6M_GTB : MEM_SIZE_6M;
2381 else
2382 i |= gtb_memsize ? MEM_SIZE_8M_GTB : MEM_SIZE_8M;
2383 aty_st_le32(MEM_CNTL, i, par);
2384 }
2385
2386 /*
2387 * Reg Block 0 (CT-compatible block) is at mmio_start
2388 * Reg Block 1 (multimedia extensions) is at mmio_start - 0x400
2389 */
2390 if (M64_HAS(GX)) {
2391 info->fix.mmio_len = 0x400;
2392 info->fix.accel = FB_ACCEL_ATI_MACH64GX;
2393 } else if (M64_HAS(CT)) {
2394 info->fix.mmio_len = 0x400;
2395 info->fix.accel = FB_ACCEL_ATI_MACH64CT;
2396 } else if (M64_HAS(VT)) {
2397 info->fix.mmio_start -= 0x400;
2398 info->fix.mmio_len = 0x800;
2399 info->fix.accel = FB_ACCEL_ATI_MACH64VT;
2400 } else {/* GT */
2401 info->fix.mmio_start -= 0x400;
2402 info->fix.mmio_len = 0x800;
2403 info->fix.accel = FB_ACCEL_ATI_MACH64GT;
2404 }
2405
2406 PRINTKI("%d%c %s, %s MHz XTAL, %d MHz PLL, %d Mhz MCLK, %d MHz XCLK\n",
2407 info->fix.smem_len == 0x80000 ? 512 : (info->fix.smem_len >> 20),
2408 info->fix.smem_len == 0x80000 ? 'K' : 'M', ramname, xtal, par->pll_limits.pll_max,
2409 par->pll_limits.mclk, par->pll_limits.xclk);
2410
2411 #if defined(DEBUG) && defined(CONFIG_ATY_CT)
2412 if (M64_HAS(INTEGRATED)) {
2413 int i;
2414 printk("debug atyfb: BUS_CNTL DAC_CNTL MEM_CNTL EXT_MEM_CNTL CRTC_GEN_CNTL "
2415 "DSP_CONFIG DSP_ON_OFF CLOCK_CNTL\n"
2416 "debug atyfb: %08x %08x %08x %08x %08x %08x %08x %08x\n"
2417 "debug atyfb: PLL",
2418 aty_ld_le32(BUS_CNTL, par), aty_ld_le32(DAC_CNTL, par),
2419 aty_ld_le32(MEM_CNTL, par), aty_ld_le32(EXT_MEM_CNTL, par),
2420 aty_ld_le32(CRTC_GEN_CNTL, par), aty_ld_le32(DSP_CONFIG, par),
2421 aty_ld_le32(DSP_ON_OFF, par), aty_ld_le32(CLOCK_CNTL, par));
2422 for (i = 0; i < 40; i++)
2423 printk(" %02x", aty_ld_pll_ct(i, par));
2424 printk("\n");
2425 }
2426 #endif
2427 if(par->pll_ops->init_pll)
2428 par->pll_ops->init_pll(info, &par->pll);
2429
2430 /*
2431 * Last page of 8 MB (4 MB on ISA) aperture is MMIO
2432 * FIXME: we should use the auxiliary aperture instead so we can access
2433 * the full 8 MB of video RAM on 8 MB boards
2434 */
2435
2436 if (!par->aux_start &&
2437 (info->fix.smem_len == 0x800000 || (par->bus_type == ISA && info->fix.smem_len == 0x400000)))
2438 info->fix.smem_len -= GUI_RESERVE;
2439
2440 /*
2441 * Disable register access through the linear aperture
2442 * if the auxiliary aperture is used so we can access
2443 * the full 8 MB of video RAM on 8 MB boards.
2444 */
2445 if (par->aux_start)
2446 aty_st_le32(BUS_CNTL, aty_ld_le32(BUS_CNTL, par) | BUS_APER_REG_DIS, par);
2447
2448 #ifdef CONFIG_MTRR
2449 par->mtrr_aper = -1;
2450 par->mtrr_reg = -1;
2451 if (!nomtrr) {
2452 /* Cover the whole resource. */
2453 par->mtrr_aper = mtrr_add(par->res_start, par->res_size, MTRR_TYPE_WRCOMB, 1);
2454 if (par->mtrr_aper >= 0 && !par->aux_start) {
2455 /* Make a hole for mmio. */
2456 par->mtrr_reg = mtrr_add(par->res_start + 0x800000 - GUI_RESERVE,
2457 GUI_RESERVE, MTRR_TYPE_UNCACHABLE, 1);
2458 if (par->mtrr_reg < 0) {
2459 mtrr_del(par->mtrr_aper, 0, 0);
2460 par->mtrr_aper = -1;
2461 }
2462 }
2463 }
2464 #endif
2465
2466 info->fbops = &atyfb_ops;
2467 info->pseudo_palette = pseudo_palette;
2468 info->flags = FBINFO_FLAG_DEFAULT;
2469
2470 #ifdef CONFIG_PMAC_BACKLIGHT
2471 if (M64_HAS(G3_PB_1_1) && machine_is_compatible("PowerBook1,1")) {
2472 /* these bits let the 101 powerbook wake up from sleep -- paulus */
2473 aty_st_lcd(POWER_MANAGEMENT, aty_ld_lcd(POWER_MANAGEMENT, par)
2474 | (USE_F32KHZ | TRISTATE_MEM_EN), par);
2475 } else if (M64_HAS(MOBIL_BUS))
2476 register_backlight_controller(&aty_backlight_controller, info, "ati");
2477 #endif /* CONFIG_PMAC_BACKLIGHT */
2478
2479 memset(&var, 0, sizeof(var));
2480 #ifdef CONFIG_PPC
2481 if (_machine == _MACH_Pmac) {
2482 /*
2483 * FIXME: The NVRAM stuff should be put in a Mac-specific file, as it
2484 * applies to all Mac video cards
2485 */
2486 if (mode) {
2487 if (!mac_find_mode(&var, info, mode, 8))
2488 var = default_var;
2489 } else {
2490 if (default_vmode == VMODE_CHOOSE) {
2491 if (M64_HAS(G3_PB_1024x768))
2492 /* G3 PowerBook with 1024x768 LCD */
2493 default_vmode = VMODE_1024_768_60;
2494 else if (machine_is_compatible("iMac"))
2495 default_vmode = VMODE_1024_768_75;
2496 else if (machine_is_compatible
2497 ("PowerBook2,1"))
2498 /* iBook with 800x600 LCD */
2499 default_vmode = VMODE_800_600_60;
2500 else
2501 default_vmode = VMODE_640_480_67;
2502 sense = read_aty_sense(par);
2503 PRINTKI("monitor sense=%x, mode %d\n",
2504 sense, mac_map_monitor_sense(sense));
2505 }
2506 if (default_vmode <= 0 || default_vmode > VMODE_MAX)
2507 default_vmode = VMODE_640_480_60;
2508 if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
2509 default_cmode = CMODE_8;
2510 if (mac_vmode_to_var(default_vmode, default_cmode, &var))
2511 var = default_var;
2512 }
2513 } else
2514 #endif /* !CONFIG_PPC */
2515 if (
2516 #if defined(CONFIG_SPARC32) || defined(CONFIG_SPARC64)
2517 /* On Sparc, unless the user gave a specific mode
2518 * specification, use the PROM probed values in
2519 * default_var.
2520 */
2521 !mode ||
2522 #endif
2523 !fb_find_mode(&var, info, mode, NULL, 0, &defmode, 8))
2524 var = default_var;
2525
2526 if (noaccel)
2527 var.accel_flags &= ~FB_ACCELF_TEXT;
2528 else
2529 var.accel_flags |= FB_ACCELF_TEXT;
2530
2531 if (comp_sync != -1) {
2532 if (!comp_sync)
2533 var.sync &= ~FB_SYNC_COMP_HIGH_ACT;
2534 else
2535 var.sync |= FB_SYNC_COMP_HIGH_ACT;
2536 }
2537
2538 if (var.yres == var.yres_virtual) {
2539 u32 videoram = (info->fix.smem_len - (PAGE_SIZE << 2));
2540 var.yres_virtual = ((videoram * 8) / var.bits_per_pixel) / var.xres_virtual;
2541 if (var.yres_virtual < var.yres)
2542 var.yres_virtual = var.yres;
2543 }
2544
2545 if (atyfb_check_var(&var, info)) {
2546 PRINTKE("can't set default video mode\n");
2547 goto aty_init_exit;
2548 }
2549
2550 #ifdef __sparc__
2551 atyfb_save_palette(par, 0);
2552 #endif
2553
2554 #ifdef CONFIG_FB_ATY_CT
2555 if (!noaccel && M64_HAS(INTEGRATED))
2556 aty_init_cursor(info);
2557 #endif /* CONFIG_FB_ATY_CT */
2558 info->var = var;
2559
2560 fb_alloc_cmap(&info->cmap, 256, 0);
2561
2562 if (register_framebuffer(info) < 0)
2563 goto aty_init_exit;
2564
2565 fb_list = info;
2566
2567 PRINTKI("fb%d: %s frame buffer device on %s\n",
2568 info->node, info->fix.id, name);
2569 return 0;
2570
2571 aty_init_exit:
2572 /* restore video mode */
2573 aty_set_crtc(par, &saved_crtc);
2574 par->pll_ops->set_pll(info, &saved_pll);
2575
2576 #ifdef CONFIG_MTRR
2577 if (par->mtrr_reg >= 0) {
2578 mtrr_del(par->mtrr_reg, 0, 0);
2579 par->mtrr_reg = -1;
2580 }
2581 if (par->mtrr_aper >= 0) {
2582 mtrr_del(par->mtrr_aper, 0, 0);
2583 par->mtrr_aper = -1;
2584 }
2585 #endif
2586 return -1;
2587 }
2588
2589 #ifdef CONFIG_ATARI
2590 static int __init store_video_par(char *video_str, unsigned char m64_num)
2591 {
2592 char *p;
2593 unsigned long vmembase, size, guiregbase;
2594
2595 PRINTKI("store_video_par() '%s' \n", video_str);
2596
2597 if (!(p = strsep(&video_str, ";")) || !*p)
2598 goto mach64_invalid;
2599 vmembase = simple_strtoul(p, NULL, 0);
2600 if (!(p = strsep(&video_str, ";")) || !*p)
2601 goto mach64_invalid;
2602 size = simple_strtoul(p, NULL, 0);
2603 if (!(p = strsep(&video_str, ";")) || !*p)
2604 goto mach64_invalid;
2605 guiregbase = simple_strtoul(p, NULL, 0);
2606
2607 phys_vmembase[m64_num] = vmembase;
2608 phys_size[m64_num] = size;
2609 phys_guiregbase[m64_num] = guiregbase;
2610 PRINTKI("stored them all: $%08lX $%08lX $%08lX \n", vmembase, size,
2611 guiregbase);
2612 return 0;
2613
2614 mach64_invalid:
2615 phys_vmembase[m64_num] = 0;
2616 return -1;
2617 }
2618 #endif /* CONFIG_ATARI */
2619
2620 /*
2621 * Blank the display.
2622 */
2623
2624 static int atyfb_blank(int blank, struct fb_info *info)
2625 {
2626 struct atyfb_par *par = (struct atyfb_par *) info->par;
2627 u8 gen_cntl;
2628
2629 if (par->lock_blank || par->asleep)
2630 return 0;
2631
2632 #ifdef CONFIG_PMAC_BACKLIGHT
2633 if ((_machine == _MACH_Pmac) && blank)
2634 set_backlight_enable(0);
2635 #elif defined(CONFIG_FB_ATY_GENERIC_LCD)
2636 if (par->lcd_table && blank &&
2637 (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) {
2638 u32 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
2639 pm &= ~PWR_BLON;
2640 aty_st_lcd(POWER_MANAGEMENT, pm, par);
2641 }
2642 #endif
2643
2644 gen_cntl = aty_ld_8(CRTC_GEN_CNTL, par);
2645 switch (blank) {
2646 case FB_BLANK_UNBLANK:
2647 gen_cntl &= ~(0x4c);
2648 break;
2649 case FB_BLANK_NORMAL:
2650 gen_cntl |= 0x40;
2651 break;
2652 case FB_BLANK_VSYNC_SUSPEND:
2653 gen_cntl |= 0x8;
2654 break;
2655 case FB_BLANK_HSYNC_SUSPEND:
2656 gen_cntl |= 0x4;
2657 break;
2658 case FB_BLANK_POWERDOWN:
2659 gen_cntl |= 0x4c;
2660 break;
2661 }
2662 aty_st_8(CRTC_GEN_CNTL, gen_cntl, par);
2663
2664 #ifdef CONFIG_PMAC_BACKLIGHT
2665 if ((_machine == _MACH_Pmac) && !blank)
2666 set_backlight_enable(1);
2667 #elif defined(CONFIG_FB_ATY_GENERIC_LCD)
2668 if (par->lcd_table && !blank &&
2669 (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) {
2670 u32 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
2671 pm |= PWR_BLON;
2672 aty_st_lcd(POWER_MANAGEMENT, pm, par);
2673 }
2674 #endif
2675
2676 return 0;
2677 }
2678
2679 static void aty_st_pal(u_int regno, u_int red, u_int green, u_int blue,
2680 const struct atyfb_par *par)
2681 {
2682 #ifdef CONFIG_ATARI
2683 out_8(&par->aty_cmap_regs->windex, regno);
2684 out_8(&par->aty_cmap_regs->lut, red);
2685 out_8(&par->aty_cmap_regs->lut, green);
2686 out_8(&par->aty_cmap_regs->lut, blue);
2687 #else
2688 writeb(regno, &par->aty_cmap_regs->windex);
2689 writeb(red, &par->aty_cmap_regs->lut);
2690 writeb(green, &par->aty_cmap_regs->lut);
2691 writeb(blue, &par->aty_cmap_regs->lut);
2692 #endif
2693 }
2694
2695 /*
2696 * Set a single color register. The values supplied are already
2697 * rounded down to the hardware's capabilities (according to the
2698 * entries in the var structure). Return != 0 for invalid regno.
2699 * !! 4 & 8 = PSEUDO, > 8 = DIRECTCOLOR
2700 */
2701
2702 static int atyfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
2703 u_int transp, struct fb_info *info)
2704 {
2705 struct atyfb_par *par = (struct atyfb_par *) info->par;
2706 int i, depth;
2707 u32 *pal = info->pseudo_palette;
2708
2709 depth = info->var.bits_per_pixel;
2710 if (depth == 16)
2711 depth = (info->var.green.length == 5) ? 15 : 16;
2712
2713 if (par->asleep)
2714 return 0;
2715
2716 if (regno > 255 ||
2717 (depth == 16 && regno > 63) ||
2718 (depth == 15 && regno > 31))
2719 return 1;
2720
2721 red >>= 8;
2722 green >>= 8;
2723 blue >>= 8;
2724
2725 par->palette[regno].red = red;
2726 par->palette[regno].green = green;
2727 par->palette[regno].blue = blue;
2728
2729 if (regno < 16) {
2730 switch (depth) {
2731 case 15:
2732 pal[regno] = (regno << 10) | (regno << 5) | regno;
2733 break;
2734 case 16:
2735 pal[regno] = (regno << 11) | (regno << 5) | regno;
2736 break;
2737 case 24:
2738 pal[regno] = (regno << 16) | (regno << 8) | regno;
2739 break;
2740 case 32:
2741 i = (regno << 8) | regno;
2742 pal[regno] = (i << 16) | i;
2743 break;
2744 }
2745 }
2746
2747 i = aty_ld_8(DAC_CNTL, par) & 0xfc;
2748 if (M64_HAS(EXTRA_BRIGHT))
2749 i |= 0x2; /* DAC_CNTL | 0x2 turns off the extra brightness for gt */
2750 aty_st_8(DAC_CNTL, i, par);
2751 aty_st_8(DAC_MASK, 0xff, par);
2752
2753 if (M64_HAS(INTEGRATED)) {
2754 if (depth == 16) {
2755 if (regno < 32)
2756 aty_st_pal(regno << 3, red,
2757 par->palette[regno<<1].green,
2758 blue, par);
2759 red = par->palette[regno>>1].red;
2760 blue = par->palette[regno>>1].blue;
2761 regno <<= 2;
2762 } else if (depth == 15) {
2763 regno <<= 3;
2764 for(i = 0; i < 8; i++) {
2765 aty_st_pal(regno + i, red, green, blue, par);
2766 }
2767 }
2768 }
2769 aty_st_pal(regno, red, green, blue, par);
2770
2771 return 0;
2772 }
2773
2774 #ifdef CONFIG_PCI
2775
2776 #ifdef __sparc__
2777
2778 extern void (*prom_palette) (int);
2779
2780 static int __devinit atyfb_setup_sparc(struct pci_dev *pdev,
2781 struct fb_info *info, unsigned long addr)
2782 {
2783 extern int con_is_present(void);
2784
2785 struct atyfb_par *par = info->par;
2786 struct pcidev_cookie *pcp;
2787 char prop[128];
2788 int node, len, i, j, ret;
2789 u32 mem, chip_id;
2790
2791 /* Do not attach when we have a serial console. */
2792 if (!con_is_present())
2793 return -ENXIO;
2794
2795 /*
2796 * Map memory-mapped registers.
2797 */
2798 par->ati_regbase = (void *)addr + 0x7ffc00UL;
2799 info->fix.mmio_start = addr + 0x7ffc00UL;
2800
2801 /*
2802 * Map in big-endian aperture.
2803 */
2804 info->screen_base = (char *) (addr + 0x800000UL);
2805 info->fix.smem_start = addr + 0x800000UL;
2806
2807 /*
2808 * Figure mmap addresses from PCI config space.
2809 * Split Framebuffer in big- and little-endian halfs.
2810 */
2811 for (i = 0; i < 6 && pdev->resource[i].start; i++)
2812 /* nothing */ ;
2813 j = i + 4;
2814
2815 par->mmap_map = kmalloc(j * sizeof(*par->mmap_map), GFP_ATOMIC);
2816 if (!par->mmap_map) {
2817 PRINTKE("atyfb_setup_sparc() can't alloc mmap_map\n");
2818 return -ENOMEM;
2819 }
2820 memset(par->mmap_map, 0, j * sizeof(*par->mmap_map));
2821
2822 for (i = 0, j = 2; i < 6 && pdev->resource[i].start; i++) {
2823 struct resource *rp = &pdev->resource[i];
2824 int io, breg = PCI_BASE_ADDRESS_0 + (i << 2);
2825 unsigned long base;
2826 u32 size, pbase;
2827
2828 base = rp->start;
2829
2830 io = (rp->flags & IORESOURCE_IO);
2831
2832 size = rp->end - base + 1;
2833
2834 pci_read_config_dword(pdev, breg, &pbase);
2835
2836 if (io)
2837 size &= ~1;
2838
2839 /*
2840 * Map the framebuffer a second time, this time without
2841 * the braindead _PAGE_IE setting. This is used by the
2842 * fixed Xserver, but we need to maintain the old mapping
2843 * to stay compatible with older ones...
2844 */
2845 if (base == addr) {
2846 par->mmap_map[j].voff = (pbase + 0x10000000) & PAGE_MASK;
2847 par->mmap_map[j].poff = base & PAGE_MASK;
2848 par->mmap_map[j].size = (size + ~PAGE_MASK) & PAGE_MASK;
2849 par->mmap_map[j].prot_mask = _PAGE_CACHE;
2850 par->mmap_map[j].prot_flag = _PAGE_E;
2851 j++;
2852 }
2853
2854 /*
2855 * Here comes the old framebuffer mapping with _PAGE_IE
2856 * set for the big endian half of the framebuffer...
2857 */
2858 if (base == addr) {
2859 par->mmap_map[j].voff = (pbase + 0x800000) & PAGE_MASK;
2860 par->mmap_map[j].poff = (base + 0x800000) & PAGE_MASK;
2861 par->mmap_map[j].size = 0x800000;
2862 par->mmap_map[j].prot_mask = _PAGE_CACHE;
2863 par->mmap_map[j].prot_flag = _PAGE_E | _PAGE_IE;
2864 size -= 0x800000;
2865 j++;
2866 }
2867
2868 par->mmap_map[j].voff = pbase & PAGE_MASK;
2869 par->mmap_map[j].poff = base & PAGE_MASK;
2870 par->mmap_map[j].size = (size + ~PAGE_MASK) & PAGE_MASK;
2871 par->mmap_map[j].prot_mask = _PAGE_CACHE;
2872 par->mmap_map[j].prot_flag = _PAGE_E;
2873 j++;
2874 }
2875
2876 if((ret = correct_chipset(par)))
2877 return ret;
2878
2879 if (IS_XL(pdev->device)) {
2880 /*
2881 * Fix PROMs idea of MEM_CNTL settings...
2882 */
2883 mem = aty_ld_le32(MEM_CNTL, par);
2884 chip_id = aty_ld_le32(CONFIG_CHIP_ID, par);
2885 if (((chip_id & CFG_CHIP_TYPE) == VT_CHIP_ID) && !((chip_id >> 24) & 1)) {
2886 switch (mem & 0x0f) {
2887 case 3:
2888 mem = (mem & ~(0x0f)) | 2;
2889 break;
2890 case 7:
2891 mem = (mem & ~(0x0f)) | 3;
2892 break;
2893 case 9:
2894 mem = (mem & ~(0x0f)) | 4;
2895 break;
2896 case 11:
2897 mem = (mem & ~(0x0f)) | 5;
2898 break;
2899 default:
2900 break;
2901 }
2902 if ((aty_ld_le32(CONFIG_STAT0, par) & 7) >= SDRAM)
2903 mem &= ~(0x00700000);
2904 }
2905 mem &= ~(0xcf80e000); /* Turn off all undocumented bits. */
2906 aty_st_le32(MEM_CNTL, mem, par);
2907 }
2908
2909 /*
2910 * If this is the console device, we will set default video
2911 * settings to what the PROM left us with.
2912 */
2913 node = prom_getchild(prom_root_node);
2914 node = prom_searchsiblings(node, "aliases");
2915 if (node) {
2916 len = prom_getproperty(node, "screen", prop, sizeof(prop));
2917 if (len > 0) {
2918 prop[len] = '\0';
2919 node = prom_finddevice(prop);
2920 } else
2921 node = 0;
2922 }
2923
2924 pcp = pdev->sysdata;
2925 if (node == pcp->prom_node) {
2926 struct fb_var_screeninfo *var = &default_var;
2927 unsigned int N, P, Q, M, T, R;
2928 u32 v_total, h_total;
2929 struct crtc crtc;
2930 u8 pll_regs[16];
2931 u8 clock_cntl;
2932
2933 crtc.vxres = prom_getintdefault(node, "width", 1024);
2934 crtc.vyres = prom_getintdefault(node, "height", 768);
2935 var->bits_per_pixel = prom_getintdefault(node, "depth", 8);
2936 var->xoffset = var->yoffset = 0;
2937 crtc.h_tot_disp = aty_ld_le32(CRTC_H_TOTAL_DISP, par);
2938 crtc.h_sync_strt_wid = aty_ld_le32(CRTC_H_SYNC_STRT_WID, par);
2939 crtc.v_tot_disp = aty_ld_le32(CRTC_V_TOTAL_DISP, par);
2940 crtc.v_sync_strt_wid = aty_ld_le32(CRTC_V_SYNC_STRT_WID, par);
2941 crtc.gen_cntl = aty_ld_le32(CRTC_GEN_CNTL, par);
2942 aty_crtc_to_var(&crtc, var);
2943
2944 h_total = var->xres + var->right_margin + var->hsync_len + var->left_margin;
2945 v_total = var->yres + var->lower_margin + var->vsync_len + var->upper_margin;
2946
2947 /*
2948 * Read the PLL to figure actual Refresh Rate.
2949 */
2950 clock_cntl = aty_ld_8(CLOCK_CNTL, par);
2951 /* DPRINTK("CLOCK_CNTL %02x\n", clock_cntl); */
2952 for (i = 0; i < 16; i++)
2953 pll_regs[i] = aty_ld_pll_ct(i, par);
2954
2955 /*
2956 * PLL Reference Divider M:
2957 */
2958 M = pll_regs[2];
2959
2960 /*
2961 * PLL Feedback Divider N (Dependant on CLOCK_CNTL):
2962 */
2963 N = pll_regs[7 + (clock_cntl & 3)];
2964
2965 /*
2966 * PLL Post Divider P (Dependant on CLOCK_CNTL):
2967 */
2968 P = 1 << (pll_regs[6] >> ((clock_cntl & 3) << 1));
2969
2970 /*
2971 * PLL Divider Q:
2972 */
2973 Q = N / P;
2974
2975 /*
2976 * Target Frequency:
2977 *
2978 * T * M
2979 * Q = -------
2980 * 2 * R
2981 *
2982 * where R is XTALIN (= 14318 or 29498 kHz).
2983 */
2984 if (IS_XL(pdev->device))
2985 R = 29498;
2986 else
2987 R = 14318;
2988
2989 T = 2 * Q * R / M;
2990
2991 default_var.pixclock = 1000000000 / T;
2992 }
2993
2994 return 0;
2995 }
2996
2997 #else /* __sparc__ */
2998
2999 #ifdef __i386__
3000 #ifdef CONFIG_FB_ATY_GENERIC_LCD
3001 static void aty_init_lcd(struct atyfb_par *par, u32 bios_base)
3002 {
3003 u32 driv_inf_tab, sig;
3004 u16 lcd_ofs;
3005
3006 /* To support an LCD panel, we should know it's dimensions and
3007 * it's desired pixel clock.
3008 * There are two ways to do it:
3009 * - Check the startup video mode and calculate the panel
3010 * size from it. This is unreliable.
3011 * - Read it from the driver information table in the video BIOS.
3012 */
3013 /* Address of driver information table is at offset 0x78. */
3014 driv_inf_tab = bios_base + *((u16 *)(bios_base+0x78));
3015
3016 /* Check for the driver information table signature. */
3017 sig = (*(u32 *)driv_inf_tab);
3018 if ((sig == 0x54504c24) || /* Rage LT pro */
3019 (sig == 0x544d5224) || /* Rage mobility */
3020 (sig == 0x54435824) || /* Rage XC */
3021 (sig == 0x544c5824)) { /* Rage XL */
3022 PRINTKI("BIOS contains driver information table.\n");
3023 lcd_ofs = (*(u16 *)(driv_inf_tab + 10));
3024 par->lcd_table = 0;
3025 if (lcd_ofs != 0) {
3026 par->lcd_table = bios_base + lcd_ofs;
3027 }
3028 }
3029
3030 if (par->lcd_table != 0) {
3031 char model[24];
3032 char strbuf[16];
3033 char refresh_rates_buf[100];
3034 int id, tech, f, i, m, default_refresh_rate;
3035 char *txtcolour;
3036 char *txtmonitor;
3037 char *txtdual;
3038 char *txtformat;
3039 u16 width, height, panel_type, refresh_rates;
3040 u16 *lcdmodeptr;
3041 u32 format;
3042 u8 lcd_refresh_rates[16] = {50,56,60,67,70,72,75,76,85,90,100,120,140,150,160,200};
3043 /* The most important information is the panel size at
3044 * offset 25 and 27, but there's some other nice information
3045 * which we print to the screen.
3046 */
3047 id = *(u8 *)par->lcd_table;
3048 strncpy(model,(char *)par->lcd_table+1,24);
3049 model[23]=0;
3050
3051 width = par->lcd_width = *(u16 *)(par->lcd_table+25);
3052 height = par->lcd_height = *(u16 *)(par->lcd_table+27);
3053 panel_type = *(u16 *)(par->lcd_table+29);
3054 if (panel_type & 1)
3055 txtcolour = "colour";
3056 else
3057 txtcolour = "monochrome";
3058 if (panel_type & 2)
3059 txtdual = "dual (split) ";
3060 else
3061 txtdual = "";
3062 tech = (panel_type>>2) & 63;
3063 switch (tech) {
3064 case 0:
3065 txtmonitor = "passive matrix";
3066 break;
3067 case 1:
3068 txtmonitor = "active matrix";
3069 break;
3070 case 2:
3071 txtmonitor = "active addressed STN";
3072 break;
3073 case 3:
3074 txtmonitor = "EL";
3075 break;
3076 case 4:
3077 txtmonitor = "plasma";
3078 break;
3079 default:
3080 txtmonitor = "unknown";
3081 }
3082 format = *(u32 *)(par->lcd_table+57);
3083 if (tech == 0 || tech == 2) {
3084 switch (format & 7) {
3085 case 0:
3086 txtformat = "12 bit interface";
3087 break;
3088 case 1:
3089 txtformat = "16 bit interface";
3090 break;
3091 case 2:
3092 txtformat = "24 bit interface";
3093 break;
3094 default:
3095 txtformat = "unkown format";
3096 }
3097 } else {
3098 switch (format & 7) {
3099 case 0:
3100 txtformat = "8 colours";
3101 break;
3102 case 1:
3103 txtformat = "512 colours";
3104 break;
3105 case 2:
3106 txtformat = "4096 colours";
3107 break;
3108 case 4:
3109 txtformat = "262144 colours (LT mode)";
3110 break;
3111 case 5:
3112 txtformat = "16777216 colours";
3113 break;
3114 case 6:
3115 txtformat = "262144 colours (FDPI-2 mode)";
3116 break;
3117 default:
3118 txtformat = "unkown format";
3119 }
3120 }
3121 PRINTKI("%s%s %s monitor detected: %s\n",
3122 txtdual ,txtcolour, txtmonitor, model);
3123 PRINTKI(" id=%d, %dx%d pixels, %s\n",
3124 id, width, height, txtformat);
3125 refresh_rates_buf[0] = 0;
3126 refresh_rates = *(u16 *)(par->lcd_table+62);
3127 m = 1;
3128 f = 0;
3129 for (i=0;i<16;i++) {
3130 if (refresh_rates & m) {
3131 if (f == 0) {
3132 sprintf(strbuf, "%d", lcd_refresh_rates[i]);
3133 f++;
3134 } else {
3135 sprintf(strbuf, ",%d", lcd_refresh_rates[i]);
3136 }
3137 strcat(refresh_rates_buf,strbuf);
3138 }
3139 m = m << 1;
3140 }
3141 default_refresh_rate = (*(u8 *)(par->lcd_table+61) & 0xf0) >> 4;
3142 PRINTKI(" supports refresh rates [%s], default %d Hz\n",
3143 refresh_rates_buf, lcd_refresh_rates[default_refresh_rate]);
3144 par->lcd_refreshrate = lcd_refresh_rates[default_refresh_rate];
3145 /* We now need to determine the crtc parameters for the
3146 * lcd monitor. This is tricky, because they are not stored
3147 * individually in the BIOS. Instead, the BIOS contains a
3148 * table of display modes that work for this monitor.
3149 *
3150 * The idea is that we search for a mode of the same dimensions
3151 * as the dimensions of the lcd monitor. Say our lcd monitor
3152 * is 800x600 pixels, we search for a 800x600 monitor.
3153 * The CRTC parameters we find here are the ones that we need
3154 * to use to simulate other resolutions on the lcd screen.
3155 */
3156 lcdmodeptr = (u16 *)(par->lcd_table + 64);
3157 while (*lcdmodeptr != 0) {
3158 u32 modeptr;
3159 u16 mwidth, mheight, lcd_hsync_start, lcd_vsync_start;
3160 modeptr = bios_base + *lcdmodeptr;
3161
3162 mwidth = *((u16 *)(modeptr+0));
3163 mheight = *((u16 *)(modeptr+2));
3164
3165 if (mwidth == width && mheight == height) {
3166 par->lcd_pixclock = 100000000 / *((u16 *)(modeptr+9));
3167 par->lcd_htotal = *((u16 *)(modeptr+17)) & 511;
3168 par->lcd_hdisp = *((u16 *)(modeptr+19)) & 511;
3169 lcd_hsync_start = *((u16 *)(modeptr+21)) & 511;
3170 par->lcd_hsync_dly = (*((u16 *)(modeptr+21)) >> 9) & 7;
3171 par->lcd_hsync_len = *((u8 *)(modeptr+23)) & 63;
3172
3173 par->lcd_vtotal = *((u16 *)(modeptr+24)) & 2047;
3174 par->lcd_vdisp = *((u16 *)(modeptr+26)) & 2047;
3175 lcd_vsync_start = *((u16 *)(modeptr+28)) & 2047;
3176 par->lcd_vsync_len = (*((u16 *)(modeptr+28)) >> 11) & 31;
3177
3178 par->lcd_htotal = (par->lcd_htotal + 1) * 8;
3179 par->lcd_hdisp = (par->lcd_hdisp + 1) * 8;
3180 lcd_hsync_start = (lcd_hsync_start + 1) * 8;
3181 par->lcd_hsync_len = par->lcd_hsync_len * 8;
3182
3183 par->lcd_vtotal++;
3184 par->lcd_vdisp++;
3185 lcd_vsync_start++;
3186
3187 par->lcd_right_margin = lcd_hsync_start - par->lcd_hdisp;
3188 par->lcd_lower_margin = lcd_vsync_start - par->lcd_vdisp;
3189 par->lcd_hblank_len = par->lcd_htotal - par->lcd_hdisp;
3190 par->lcd_vblank_len = par->lcd_vtotal - par->lcd_vdisp;
3191 break;
3192 }
3193
3194 lcdmodeptr++;
3195 }
3196 if (*lcdmodeptr == 0) {
3197 PRINTKE("LCD monitor CRTC parameters not found!!!\n");
3198 /* To do: Switch to CRT if possible. */
3199 } else {
3200 PRINTKI(" LCD CRTC parameters: %d.%d %d %d %d %d %d %d %d %d\n",
3201 1000000 / par->lcd_pixclock, 1000000 % par->lcd_pixclock,
3202 par->lcd_hdisp,
3203 par->lcd_hdisp + par->lcd_right_margin,
3204 par->lcd_hdisp + par->lcd_right_margin
3205 + par->lcd_hsync_dly + par->lcd_hsync_len,
3206 par->lcd_htotal,
3207 par->lcd_vdisp,
3208 par->lcd_vdisp + par->lcd_lower_margin,
3209 par->lcd_vdisp + par->lcd_lower_margin + par->lcd_vsync_len,
3210 par->lcd_vtotal);
3211 PRINTKI(" : %d %d %d %d %d %d %d %d %d\n",
3212 par->lcd_pixclock,
3213 par->lcd_hblank_len - (par->lcd_right_margin +
3214 par->lcd_hsync_dly + par->lcd_hsync_len),
3215 par->lcd_hdisp,
3216 par->lcd_right_margin,
3217 par->lcd_hsync_len,
3218 par->lcd_vblank_len - (par->lcd_lower_margin + par->lcd_vsync_len),
3219 par->lcd_vdisp,
3220 par->lcd_lower_margin,
3221 par->lcd_vsync_len);
3222 }
3223 }
3224 }
3225 #endif /* CONFIG_FB_ATY_GENERIC_LCD */
3226
3227 static int __devinit init_from_bios(struct atyfb_par *par)
3228 {
3229 u32 bios_base, rom_addr;
3230 int ret;
3231
3232 rom_addr = 0xc0000 + ((aty_ld_le32(SCRATCH_REG1, par) & 0x7f) << 11);
3233 bios_base = (unsigned long)ioremap(rom_addr, 0x10000);
3234
3235 /* The BIOS starts with 0xaa55. */
3236 if (*((u16 *)bios_base) == 0xaa55) {
3237
3238 u8 *bios_ptr;
3239 u16 rom_table_offset, freq_table_offset;
3240 PLL_BLOCK_MACH64 pll_block;
3241
3242 PRINTKI("Mach64 BIOS is located at %x, mapped at %x.\n", rom_addr, bios_base);
3243
3244 /* check for frequncy table */
3245 bios_ptr = (u8*)bios_base;
3246 rom_table_offset = (u16)(bios_ptr[0x48] | (bios_ptr[0x49] << 8));
3247 freq_table_offset = bios_ptr[rom_table_offset + 16] | (bios_ptr[rom_table_offset + 17] << 8);
3248 memcpy(&pll_block, bios_ptr + freq_table_offset, sizeof(PLL_BLOCK_MACH64));
3249
3250 PRINTKI("BIOS frequency table:\n");
3251 PRINTKI("PCLK_min_freq %d, PCLK_max_freq %d, ref_freq %d, ref_divider %d\n",
3252 pll_block.PCLK_min_freq, pll_block.PCLK_max_freq,
3253 pll_block.ref_freq, pll_block.ref_divider);
3254 PRINTKI("MCLK_pwd %d, MCLK_max_freq %d, XCLK_max_freq %d, SCLK_freq %d\n",
3255 pll_block.MCLK_pwd, pll_block.MCLK_max_freq,
3256 pll_block.XCLK_max_freq, pll_block.SCLK_freq);
3257
3258 par->pll_limits.pll_min = pll_block.PCLK_min_freq/100;
3259 par->pll_limits.pll_max = pll_block.PCLK_max_freq/100;
3260 par->pll_limits.ref_clk = pll_block.ref_freq/100;
3261 par->pll_limits.ref_div = pll_block.ref_divider;
3262 par->pll_limits.sclk = pll_block.SCLK_freq/100;
3263 par->pll_limits.mclk = pll_block.MCLK_max_freq/100;
3264 par->pll_limits.mclk_pm = pll_block.MCLK_pwd/100;
3265 par->pll_limits.xclk = pll_block.XCLK_max_freq/100;
3266 #ifdef CONFIG_FB_ATY_GENERIC_LCD
3267 aty_init_lcd(par, bios_base);
3268 #endif
3269 ret = 0;
3270 } else {
3271 PRINTKE("no BIOS frequency table found, use parameters\n");
3272 ret = -ENXIO;
3273 }
3274 iounmap((void* __iomem )bios_base);
3275
3276 return ret;
3277 }
3278 #endif /* __i386__ */
3279
3280 static int __devinit atyfb_setup_generic(struct pci_dev *pdev, struct fb_info *info, unsigned long addr)
3281 {
3282 struct atyfb_par *par = info->par;
3283 u16 tmp;
3284 unsigned long raddr;
3285 struct resource *rrp;
3286 int ret = 0;
3287
3288 raddr = addr + 0x7ff000UL;
3289 rrp = &pdev->resource[2];
3290 if ((rrp->flags & IORESOURCE_MEM) && request_mem_region(rrp->start, rrp->end - rrp->start + 1, "atyfb")) {
3291 par->aux_start = rrp->start;
3292 par->aux_size = rrp->end - rrp->start + 1;
3293 raddr = rrp->start;
3294 PRINTKI("using auxiliary register aperture\n");
3295 }
3296
3297 info->fix.mmio_start = raddr;
3298 par->ati_regbase = ioremap(info->fix.mmio_start, 0x1000);
3299 if (par->ati_regbase == 0)
3300 return -ENOMEM;
3301
3302 info->fix.mmio_start += par->aux_start ? 0x400 : 0xc00;
3303 par->ati_regbase += par->aux_start ? 0x400 : 0xc00;
3304
3305 /*
3306 * Enable memory-space accesses using config-space
3307 * command register.
3308 */
3309 pci_read_config_word(pdev, PCI_COMMAND, &tmp);
3310 if (!(tmp & PCI_COMMAND_MEMORY)) {
3311 tmp |= PCI_COMMAND_MEMORY;
3312 pci_write_config_word(pdev, PCI_COMMAND, tmp);
3313 }
3314 #ifdef __BIG_ENDIAN
3315 /* Use the big-endian aperture */
3316 addr += 0x800000;
3317 #endif
3318
3319 /* Map in frame buffer */
3320 info->fix.smem_start = addr;
3321 info->screen_base = ioremap(addr, 0x800000);
3322 if (info->screen_base == NULL) {
3323 ret = -ENOMEM;
3324 goto atyfb_setup_generic_fail;
3325 }
3326
3327 if((ret = correct_chipset(par)))
3328 goto atyfb_setup_generic_fail;
3329 #ifdef __i386__
3330 if((ret = init_from_bios(par)))
3331 goto atyfb_setup_generic_fail;
3332 #endif
3333 if (!(aty_ld_le32(CRTC_GEN_CNTL, par) & CRTC_EXT_DISP_EN))
3334 par->clk_wr_offset = (inb(R_GENMO) & 0x0CU) >> 2;
3335 else
3336 par->clk_wr_offset = aty_ld_8(CLOCK_CNTL, par) & 0x03U;
3337
3338 /* according to ATI, we should use clock 3 for acelerated mode */
3339 par->clk_wr_offset = 3;
3340
3341 return 0;
3342
3343 atyfb_setup_generic_fail:
3344 iounmap(par->ati_regbase);
3345 par->ati_regbase = NULL;
3346 return ret;
3347 }
3348
3349 #endif /* !__sparc__ */
3350
3351 static int __devinit atyfb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
3352 {
3353 unsigned long addr, res_start, res_size;
3354 struct fb_info *info;
3355 struct resource *rp;
3356 struct atyfb_par *par;
3357 int i, rc = -ENOMEM;
3358
3359 for (i = sizeof(aty_chips) / sizeof(*aty_chips) - 1; i >= 0; i--)
3360 if (pdev->device == aty_chips[i].pci_id)
3361 break;
3362
3363 if (i < 0)
3364 return -ENODEV;
3365
3366 /* Enable device in PCI config */
3367 if (pci_enable_device(pdev)) {
3368 PRINTKE("Cannot enable PCI device\n");
3369 return -ENXIO;
3370 }
3371
3372 /* Find which resource to use */
3373 rp = &pdev->resource[0];
3374 if (rp->flags & IORESOURCE_IO)
3375 rp = &pdev->resource[1];
3376 addr = rp->start;
3377 if (!addr)
3378 return -ENXIO;
3379
3380 /* Reserve space */
3381 res_start = rp->start;
3382 res_size = rp->end - rp->start + 1;
3383 if (!request_mem_region (res_start, res_size, "atyfb"))
3384 return -EBUSY;
3385
3386 /* Allocate framebuffer */
3387 info = framebuffer_alloc(sizeof(struct atyfb_par), &pdev->dev);
3388 if (!info) {
3389 PRINTKE("atyfb_pci_probe() can't alloc fb_info\n");
3390 return -ENOMEM;
3391 }
3392 par = info->par;
3393 info->fix = atyfb_fix;
3394 info->device = &pdev->dev;
3395 par->pci_id = aty_chips[i].pci_id;
3396 par->res_start = res_start;
3397 par->res_size = res_size;
3398 par->irq = pdev->irq;
3399
3400 /* Setup "info" structure */
3401 #ifdef __sparc__
3402 rc = atyfb_setup_sparc(pdev, info, addr);
3403 #else
3404 rc = atyfb_setup_generic(pdev, info, addr);
3405 #endif
3406 if (rc)
3407 goto err_release_mem;
3408
3409 pci_set_drvdata(pdev, info);
3410
3411 /* Init chip & register framebuffer */
3412 if (aty_init(info, "PCI"))
3413 goto err_release_io;
3414
3415 #ifdef __sparc__
3416 if (!prom_palette)
3417 prom_palette = atyfb_palette;
3418
3419 /*
3420 * Add /dev/fb mmap values.
3421 */
3422 par->mmap_map[0].voff = 0x8000000000000000UL;
3423 par->mmap_map[0].poff = (unsigned long) info->screen_base & PAGE_MASK;
3424 par->mmap_map[0].size = info->fix.smem_len;
3425 par->mmap_map[0].prot_mask = _PAGE_CACHE;
3426 par->mmap_map[0].prot_flag = _PAGE_E;
3427 par->mmap_map[1].voff = par->mmap_map[0].voff + info->fix.smem_len;
3428 par->mmap_map[1].poff = (long)par->ati_regbase & PAGE_MASK;
3429 par->mmap_map[1].size = PAGE_SIZE;
3430 par->mmap_map[1].prot_mask = _PAGE_CACHE;
3431 par->mmap_map[1].prot_flag = _PAGE_E;
3432 #endif /* __sparc__ */
3433
3434 return 0;
3435
3436 err_release_io:
3437 #ifdef __sparc__
3438 kfree(par->mmap_map);
3439 #else
3440 if (par->ati_regbase)
3441 iounmap(par->ati_regbase);
3442 if (info->screen_base)
3443 iounmap(info->screen_base);
3444 #endif
3445 err_release_mem:
3446 if (par->aux_start)
3447 release_mem_region(par->aux_start, par->aux_size);
3448
3449 release_mem_region(par->res_start, par->res_size);
3450 framebuffer_release(info);
3451
3452 return rc;
3453 }
3454
3455 #endif /* CONFIG_PCI */
3456
3457 #ifdef CONFIG_ATARI
3458
3459 static int __devinit atyfb_atari_probe(void)
3460 {
3461 struct aty_par *par;
3462 struct fb_info *info;
3463 int m64_num;
3464 u32 clock_r;
3465
3466 for (m64_num = 0; m64_num < mach64_count; m64_num++) {
3467 if (!phys_vmembase[m64_num] || !phys_size[m64_num] ||
3468 !phys_guiregbase[m64_num]) {
3469 PRINTKI("phys_*[%d] parameters not set => returning early. \n", m64_num);
3470 continue;
3471 }
3472
3473 info = framebuffer_alloc(sizeof(struct atyfb_par), NULL);
3474 if (!info) {
3475 PRINTKE("atyfb_atari_probe() can't alloc fb_info\n");
3476 return -ENOMEM;
3477 }
3478 par = info->par;
3479
3480 info->fix = atyfb_fix;
3481
3482 par->irq = (unsigned int) -1; /* something invalid */
3483
3484 /*
3485 * Map the video memory (physical address given) to somewhere in the
3486 * kernel address space.
3487 */
3488 info->screen_base = ioremap(phys_vmembase[m64_num], phys_size[m64_num]);
3489 info->fix.smem_start = (unsigned long)info->screen_base; /* Fake! */
3490 par->ati_regbase = ioremap(phys_guiregbase[m64_num], 0x10000) +
3491 0xFC00ul;
3492 info->fix.mmio_start = (unsigned long)par->ati_regbase; /* Fake! */
3493
3494 aty_st_le32(CLOCK_CNTL, 0x12345678, par);
3495 clock_r = aty_ld_le32(CLOCK_CNTL, par);
3496
3497 switch (clock_r & 0x003F) {
3498 case 0x12:
3499 par->clk_wr_offset = 3; /* */
3500 break;
3501 case 0x34:
3502 par->clk_wr_offset = 2; /* Medusa ST-IO ISA Adapter etc. */
3503 break;
3504 case 0x16:
3505 par->clk_wr_offset = 1; /* */
3506 break;
3507 case 0x38:
3508 par->clk_wr_offset = 0; /* Panther 1 ISA Adapter (Gerald) */
3509 break;
3510 }
3511
3512 if (aty_init(info, "ISA bus")) {
3513 framebuffer_release(info);
3514 /* This is insufficient! kernel_map has added two large chunks!! */
3515 return -ENXIO;
3516 }
3517 }
3518 }
3519
3520 #endif /* CONFIG_ATARI */
3521
3522 static void __devexit atyfb_remove(struct fb_info *info)
3523 {
3524 struct atyfb_par *par = (struct atyfb_par *) info->par;
3525
3526 /* restore video mode */
3527 aty_set_crtc(par, &saved_crtc);
3528 par->pll_ops->set_pll(info, &saved_pll);
3529
3530 unregister_framebuffer(info);
3531
3532 #ifdef CONFIG_MTRR
3533 if (par->mtrr_reg >= 0) {
3534 mtrr_del(par->mtrr_reg, 0, 0);
3535 par->mtrr_reg = -1;
3536 }
3537 if (par->mtrr_aper >= 0) {
3538 mtrr_del(par->mtrr_aper, 0, 0);
3539 par->mtrr_aper = -1;
3540 }
3541 #endif
3542 #ifndef __sparc__
3543 if (par->ati_regbase)
3544 iounmap(par->ati_regbase);
3545 if (info->screen_base)
3546 iounmap(info->screen_base);
3547 #ifdef __BIG_ENDIAN
3548 if (info->sprite.addr)
3549 iounmap(info->sprite.addr);
3550 #endif
3551 #endif
3552 #ifdef __sparc__
3553 kfree(par->mmap_map);
3554 #endif
3555 if (par->aux_start)
3556 release_mem_region(par->aux_start, par->aux_size);
3557
3558 if (par->res_start)
3559 release_mem_region(par->res_start, par->res_size);
3560
3561 framebuffer_release(info);
3562 }
3563
3564 #ifdef CONFIG_PCI
3565
3566 static void __devexit atyfb_pci_remove(struct pci_dev *pdev)
3567 {
3568 struct fb_info *info = pci_get_drvdata(pdev);
3569
3570 atyfb_remove(info);
3571 }
3572
3573 /*
3574 * This driver uses its own matching table. That will be more difficult
3575 * to fix, so for now, we just match against any ATI ID and let the
3576 * probe() function find out what's up. That also mean we don't have
3577 * a module ID table though.
3578 */
3579 static struct pci_device_id atyfb_pci_tbl[] = {
3580 { PCI_VENDOR_ID_ATI, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
3581 PCI_BASE_CLASS_DISPLAY << 16, 0xff0000, 0 },
3582 { 0, }
3583 };
3584
3585 static struct pci_driver atyfb_driver = {
3586 .name = "atyfb",
3587 .id_table = atyfb_pci_tbl,
3588 .probe = atyfb_pci_probe,
3589 .remove = __devexit_p(atyfb_pci_remove),
3590 #ifdef CONFIG_PM
3591 .suspend = atyfb_pci_suspend,
3592 .resume = atyfb_pci_resume,
3593 #endif /* CONFIG_PM */
3594 };
3595
3596 #endif /* CONFIG_PCI */
3597
3598 #ifndef MODULE
3599 static int __init atyfb_setup(char *options)
3600 {
3601 char *this_opt;
3602
3603 if (!options || !*options)
3604 return 0;
3605
3606 while ((this_opt = strsep(&options, ",")) != NULL) {
3607 if (!strncmp(this_opt, "noaccel", 7)) {
3608 noaccel = 1;
3609 #ifdef CONFIG_MTRR
3610 } else if (!strncmp(this_opt, "nomtrr", 6)) {
3611 nomtrr = 1;
3612 #endif
3613 } else if (!strncmp(this_opt, "vram:", 5))
3614 vram = simple_strtoul(this_opt + 5, NULL, 0);
3615 else if (!strncmp(this_opt, "pll:", 4))
3616 pll = simple_strtoul(this_opt + 4, NULL, 0);
3617 else if (!strncmp(this_opt, "mclk:", 5))
3618 mclk = simple_strtoul(this_opt + 5, NULL, 0);
3619 else if (!strncmp(this_opt, "xclk:", 5))
3620 xclk = simple_strtoul(this_opt+5, NULL, 0);
3621 else if (!strncmp(this_opt, "comp_sync:", 10))
3622 comp_sync = simple_strtoul(this_opt+10, NULL, 0);
3623 #ifdef CONFIG_PPC
3624 else if (!strncmp(this_opt, "vmode:", 6)) {
3625 unsigned int vmode =
3626 simple_strtoul(this_opt + 6, NULL, 0);
3627 if (vmode > 0 && vmode <= VMODE_MAX)
3628 default_vmode = vmode;
3629 } else if (!strncmp(this_opt, "cmode:", 6)) {
3630 unsigned int cmode =
3631 simple_strtoul(this_opt + 6, NULL, 0);
3632 switch (cmode) {
3633 case 0:
3634 case 8:
3635 default_cmode = CMODE_8;
3636 break;
3637 case 15:
3638 case 16:
3639 default_cmode = CMODE_16;
3640 break;
3641 case 24:
3642 case 32:
3643 default_cmode = CMODE_32;
3644 break;
3645 }
3646 }
3647 #endif
3648 #ifdef CONFIG_ATARI
3649 /*
3650 * Why do we need this silly Mach64 argument?
3651 * We are already here because of mach64= so its redundant.
3652 */
3653 else if (MACH_IS_ATARI
3654 && (!strncmp(this_opt, "Mach64:", 7))) {
3655 static unsigned char m64_num;
3656 static char mach64_str[80];
3657 strlcpy(mach64_str, this_opt + 7, sizeof(mach64_str));
3658 if (!store_video_par(mach64_str, m64_num)) {
3659 m64_num++;
3660 mach64_count = m64_num;
3661 }
3662 }
3663 #endif
3664 else
3665 mode = this_opt;
3666 }
3667 return 0;
3668 }
3669 #endif /* MODULE */
3670
3671 static int __init atyfb_init(void)
3672 {
3673 #ifndef MODULE
3674 char *option = NULL;
3675
3676 if (fb_get_options("atyfb", &option))
3677 return -ENODEV;
3678 atyfb_setup(option);
3679 #endif
3680
3681 #ifdef CONFIG_PCI
3682 pci_register_driver(&atyfb_driver);
3683 #endif
3684 #ifdef CONFIG_ATARI
3685 atyfb_atari_probe();
3686 #endif
3687 return 0;
3688 }
3689
3690 static void __exit atyfb_exit(void)
3691 {
3692 #ifdef CONFIG_PCI
3693 pci_unregister_driver(&atyfb_driver);
3694 #endif
3695 }
3696
3697 module_init(atyfb_init);
3698 module_exit(atyfb_exit);
3699
3700 MODULE_DESCRIPTION("FBDev driver for ATI Mach64 cards");
3701 MODULE_LICENSE("GPL");
3702 module_param(noaccel, bool, 0);
3703 MODULE_PARM_DESC(noaccel, "bool: disable acceleration");
3704 module_param(vram, int, 0);
3705 MODULE_PARM_DESC(vram, "int: override size of video ram");
3706 module_param(pll, int, 0);
3707 MODULE_PARM_DESC(pll, "int: override video clock");
3708 module_param(mclk, int, 0);
3709 MODULE_PARM_DESC(mclk, "int: override memory clock");
3710 module_param(xclk, int, 0);
3711 MODULE_PARM_DESC(xclk, "int: override accelerated engine clock");
3712 module_param(comp_sync, int, 0);
3713 MODULE_PARM_DESC(comp_sync,
3714 "Set composite sync signal to low (0) or high (1)");
3715 module_param(mode, charp, 0);
3716 MODULE_PARM_DESC(mode, "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" ");
3717 #ifdef CONFIG_MTRR
3718 module_param(nomtrr, bool, 0);
3719 MODULE_PARM_DESC(nomtrr, "bool: disable use of MTRR registers");
3720 #endif
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