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[PATCH] swsusp: switch pm_message_t to struct
[deliverable/linux.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 #ifndef 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 return 0;
2032 #endif /* CONFIG_PPC_PMAC */
2033
2034 if (state.event == pdev->dev.power.power_state.event)
2035 return 0;
2036
2037 acquire_console_sem();
2038
2039 fb_set_suspend(info, 1);
2040
2041 /* Idle & reset engine */
2042 wait_for_idle(par);
2043 aty_reset_engine(par);
2044
2045 /* Blank display and LCD */
2046 atyfb_blank(FB_BLANK_POWERDOWN, info);
2047
2048 par->asleep = 1;
2049 par->lock_blank = 1;
2050
2051 /* Set chip to "suspend" mode */
2052 if (aty_power_mgmt(1, par)) {
2053 par->asleep = 0;
2054 par->lock_blank = 0;
2055 atyfb_blank(FB_BLANK_UNBLANK, info);
2056 fb_set_suspend(info, 0);
2057 release_console_sem();
2058 return -EIO;
2059 }
2060
2061 release_console_sem();
2062
2063 pdev->dev.power.power_state = state;
2064
2065 return 0;
2066 }
2067
2068 static int atyfb_pci_resume(struct pci_dev *pdev)
2069 {
2070 struct fb_info *info = pci_get_drvdata(pdev);
2071 struct atyfb_par *par = (struct atyfb_par *) info->par;
2072
2073 if (pdev->dev.power.power_state.event == PM_EVENT_ON)
2074 return 0;
2075
2076 acquire_console_sem();
2077
2078 if (pdev->dev.power.power_state.event == 2)
2079 aty_power_mgmt(0, par);
2080 par->asleep = 0;
2081
2082 /* Restore display */
2083 atyfb_set_par(info);
2084
2085 /* Refresh */
2086 fb_set_suspend(info, 0);
2087
2088 /* Unblank */
2089 par->lock_blank = 0;
2090 atyfb_blank(FB_BLANK_UNBLANK, info);
2091
2092 release_console_sem();
2093
2094 pdev->dev.power.power_state = PMSG_ON;
2095
2096 return 0;
2097 }
2098
2099 #endif /* defined(CONFIG_PM) && defined(CONFIG_PCI) */
2100
2101 #ifdef CONFIG_PMAC_BACKLIGHT
2102
2103 /*
2104 * LCD backlight control
2105 */
2106
2107 static int backlight_conv[] = {
2108 0x00, 0x3f, 0x4c, 0x59, 0x66, 0x73, 0x80, 0x8d,
2109 0x9a, 0xa7, 0xb4, 0xc1, 0xcf, 0xdc, 0xe9, 0xff
2110 };
2111
2112 static int aty_set_backlight_enable(int on, int level, void *data)
2113 {
2114 struct fb_info *info = (struct fb_info *) data;
2115 struct atyfb_par *par = (struct atyfb_par *) info->par;
2116 unsigned int reg = aty_ld_lcd(LCD_MISC_CNTL, par);
2117
2118 reg |= (BLMOD_EN | BIASMOD_EN);
2119 if (on && level > BACKLIGHT_OFF) {
2120 reg &= ~BIAS_MOD_LEVEL_MASK;
2121 reg |= (backlight_conv[level] << BIAS_MOD_LEVEL_SHIFT);
2122 } else {
2123 reg &= ~BIAS_MOD_LEVEL_MASK;
2124 reg |= (backlight_conv[0] << BIAS_MOD_LEVEL_SHIFT);
2125 }
2126 aty_st_lcd(LCD_MISC_CNTL, reg, par);
2127 return 0;
2128 }
2129
2130 static int aty_set_backlight_level(int level, void *data)
2131 {
2132 return aty_set_backlight_enable(1, level, data);
2133 }
2134
2135 static struct backlight_controller aty_backlight_controller = {
2136 aty_set_backlight_enable,
2137 aty_set_backlight_level
2138 };
2139 #endif /* CONFIG_PMAC_BACKLIGHT */
2140
2141 static void __init aty_calc_mem_refresh(struct atyfb_par *par, int xclk)
2142 {
2143 const int ragepro_tbl[] = {
2144 44, 50, 55, 66, 75, 80, 100
2145 };
2146 const int ragexl_tbl[] = {
2147 50, 66, 75, 83, 90, 95, 100, 105,
2148 110, 115, 120, 125, 133, 143, 166
2149 };
2150 const int *refresh_tbl;
2151 int i, size;
2152
2153 if (IS_XL(par->pci_id) || IS_MOBILITY(par->pci_id)) {
2154 refresh_tbl = ragexl_tbl;
2155 size = sizeof(ragexl_tbl)/sizeof(int);
2156 } else {
2157 refresh_tbl = ragepro_tbl;
2158 size = sizeof(ragepro_tbl)/sizeof(int);
2159 }
2160
2161 for (i=0; i < size; i++) {
2162 if (xclk < refresh_tbl[i])
2163 break;
2164 }
2165 par->mem_refresh_rate = i;
2166 }
2167
2168 /*
2169 * Initialisation
2170 */
2171
2172 static struct fb_info *fb_list = NULL;
2173
2174 static int __init aty_init(struct fb_info *info, const char *name)
2175 {
2176 struct atyfb_par *par = (struct atyfb_par *) info->par;
2177 const char *ramname = NULL, *xtal;
2178 int gtb_memsize;
2179 struct fb_var_screeninfo var;
2180 u8 pll_ref_div;
2181 u32 i;
2182 #if defined(CONFIG_PPC)
2183 int sense;
2184 #endif
2185
2186 init_waitqueue_head(&par->vblank.wait);
2187 spin_lock_init(&par->int_lock);
2188
2189 par->aty_cmap_regs =
2190 (struct aty_cmap_regs __iomem *) (par->ati_regbase + 0xc0);
2191
2192 #ifdef CONFIG_PPC_PMAC
2193 /* The Apple iBook1 uses non-standard memory frequencies. We detect it
2194 * and set the frequency manually. */
2195 if (machine_is_compatible("PowerBook2,1")) {
2196 par->pll_limits.mclk = 70;
2197 par->pll_limits.xclk = 53;
2198 }
2199 #endif
2200 if (pll)
2201 par->pll_limits.pll_max = pll;
2202 if (mclk)
2203 par->pll_limits.mclk = mclk;
2204 if (xclk)
2205 par->pll_limits.xclk = xclk;
2206
2207 aty_calc_mem_refresh(par, par->pll_limits.xclk);
2208 par->pll_per = 1000000/par->pll_limits.pll_max;
2209 par->mclk_per = 1000000/par->pll_limits.mclk;
2210 par->xclk_per = 1000000/par->pll_limits.xclk;
2211
2212 par->ref_clk_per = 1000000000000ULL / 14318180;
2213 xtal = "14.31818";
2214
2215 #ifdef CONFIG_FB_ATY_GX
2216 if (!M64_HAS(INTEGRATED)) {
2217 u32 stat0;
2218 u8 dac_type, dac_subtype, clk_type;
2219 stat0 = aty_ld_le32(CONFIG_STAT0, par);
2220 par->bus_type = (stat0 >> 0) & 0x07;
2221 par->ram_type = (stat0 >> 3) & 0x07;
2222 ramname = aty_gx_ram[par->ram_type];
2223 /* FIXME: clockchip/RAMDAC probing? */
2224 dac_type = (aty_ld_le32(DAC_CNTL, par) >> 16) & 0x07;
2225 #ifdef CONFIG_ATARI
2226 clk_type = CLK_ATI18818_1;
2227 dac_type = (stat0 >> 9) & 0x07;
2228 if (dac_type == 0x07)
2229 dac_subtype = DAC_ATT20C408;
2230 else
2231 dac_subtype = (aty_ld_8(SCRATCH_REG1 + 1, par) & 0xF0) | dac_type;
2232 #else
2233 dac_type = DAC_IBMRGB514;
2234 dac_subtype = DAC_IBMRGB514;
2235 clk_type = CLK_IBMRGB514;
2236 #endif
2237 switch (dac_subtype) {
2238 case DAC_IBMRGB514:
2239 par->dac_ops = &aty_dac_ibm514;
2240 break;
2241 case DAC_ATI68860_B:
2242 case DAC_ATI68860_C:
2243 par->dac_ops = &aty_dac_ati68860b;
2244 break;
2245 case DAC_ATT20C408:
2246 case DAC_ATT21C498:
2247 par->dac_ops = &aty_dac_att21c498;
2248 break;
2249 default:
2250 PRINTKI("aty_init: DAC type not implemented yet!\n");
2251 par->dac_ops = &aty_dac_unsupported;
2252 break;
2253 }
2254 switch (clk_type) {
2255 case CLK_ATI18818_1:
2256 par->pll_ops = &aty_pll_ati18818_1;
2257 break;
2258 case CLK_STG1703:
2259 par->pll_ops = &aty_pll_stg1703;
2260 break;
2261 case CLK_CH8398:
2262 par->pll_ops = &aty_pll_ch8398;
2263 break;
2264 case CLK_ATT20C408:
2265 par->pll_ops = &aty_pll_att20c408;
2266 break;
2267 case CLK_IBMRGB514:
2268 par->pll_ops = &aty_pll_ibm514;
2269 break;
2270 default:
2271 PRINTKI("aty_init: CLK type not implemented yet!");
2272 par->pll_ops = &aty_pll_unsupported;
2273 break;
2274 }
2275 }
2276 #endif /* CONFIG_FB_ATY_GX */
2277 #ifdef CONFIG_FB_ATY_CT
2278 if (M64_HAS(INTEGRATED)) {
2279 par->dac_ops = &aty_dac_ct;
2280 par->pll_ops = &aty_pll_ct;
2281 par->bus_type = PCI;
2282 #ifdef CONFIG_FB_ATY_XL_INIT
2283 if (IS_XL(par->pci_id))
2284 atyfb_xl_init(info);
2285 #endif
2286 par->ram_type = (aty_ld_le32(CONFIG_STAT0, par) & 0x07);
2287 ramname = aty_ct_ram[par->ram_type];
2288 /* for many chips, the mclk is 67 MHz for SDRAM, 63 MHz otherwise */
2289 if (par->pll_limits.mclk == 67 && par->ram_type < SDRAM)
2290 par->pll_limits.mclk = 63;
2291 }
2292
2293 if (M64_HAS(GTB_DSP)
2294 && (pll_ref_div = aty_ld_pll_ct(PLL_REF_DIV, par))) {
2295 int diff1, diff2;
2296 diff1 = 510 * 14 / pll_ref_div - par->pll_limits.pll_max;
2297 diff2 = 510 * 29 / pll_ref_div - par->pll_limits.pll_max;
2298 if (diff1 < 0)
2299 diff1 = -diff1;
2300 if (diff2 < 0)
2301 diff2 = -diff2;
2302 if (diff2 < diff1) {
2303 par->ref_clk_per = 1000000000000ULL / 29498928;
2304 xtal = "29.498928";
2305 }
2306 }
2307 #endif /* CONFIG_FB_ATY_CT */
2308
2309 /* save previous video mode */
2310 aty_get_crtc(par, &saved_crtc);
2311 if(par->pll_ops->get_pll)
2312 par->pll_ops->get_pll(info, &saved_pll);
2313
2314 i = aty_ld_le32(MEM_CNTL, par);
2315 gtb_memsize = M64_HAS(GTB_DSP);
2316 if (gtb_memsize)
2317 switch (i & 0xF) { /* 0xF used instead of MEM_SIZE_ALIAS */
2318 case MEM_SIZE_512K:
2319 info->fix.smem_len = 0x80000;
2320 break;
2321 case MEM_SIZE_1M:
2322 info->fix.smem_len = 0x100000;
2323 break;
2324 case MEM_SIZE_2M_GTB:
2325 info->fix.smem_len = 0x200000;
2326 break;
2327 case MEM_SIZE_4M_GTB:
2328 info->fix.smem_len = 0x400000;
2329 break;
2330 case MEM_SIZE_6M_GTB:
2331 info->fix.smem_len = 0x600000;
2332 break;
2333 case MEM_SIZE_8M_GTB:
2334 info->fix.smem_len = 0x800000;
2335 break;
2336 default:
2337 info->fix.smem_len = 0x80000;
2338 } else
2339 switch (i & MEM_SIZE_ALIAS) {
2340 case MEM_SIZE_512K:
2341 info->fix.smem_len = 0x80000;
2342 break;
2343 case MEM_SIZE_1M:
2344 info->fix.smem_len = 0x100000;
2345 break;
2346 case MEM_SIZE_2M:
2347 info->fix.smem_len = 0x200000;
2348 break;
2349 case MEM_SIZE_4M:
2350 info->fix.smem_len = 0x400000;
2351 break;
2352 case MEM_SIZE_6M:
2353 info->fix.smem_len = 0x600000;
2354 break;
2355 case MEM_SIZE_8M:
2356 info->fix.smem_len = 0x800000;
2357 break;
2358 default:
2359 info->fix.smem_len = 0x80000;
2360 }
2361
2362 if (M64_HAS(MAGIC_VRAM_SIZE)) {
2363 if (aty_ld_le32(CONFIG_STAT1, par) & 0x40000000)
2364 info->fix.smem_len += 0x400000;
2365 }
2366
2367 if (vram) {
2368 info->fix.smem_len = vram * 1024;
2369 i = i & ~(gtb_memsize ? 0xF : MEM_SIZE_ALIAS);
2370 if (info->fix.smem_len <= 0x80000)
2371 i |= MEM_SIZE_512K;
2372 else if (info->fix.smem_len <= 0x100000)
2373 i |= MEM_SIZE_1M;
2374 else if (info->fix.smem_len <= 0x200000)
2375 i |= gtb_memsize ? MEM_SIZE_2M_GTB : MEM_SIZE_2M;
2376 else if (info->fix.smem_len <= 0x400000)
2377 i |= gtb_memsize ? MEM_SIZE_4M_GTB : MEM_SIZE_4M;
2378 else if (info->fix.smem_len <= 0x600000)
2379 i |= gtb_memsize ? MEM_SIZE_6M_GTB : MEM_SIZE_6M;
2380 else
2381 i |= gtb_memsize ? MEM_SIZE_8M_GTB : MEM_SIZE_8M;
2382 aty_st_le32(MEM_CNTL, i, par);
2383 }
2384
2385 /*
2386 * Reg Block 0 (CT-compatible block) is at mmio_start
2387 * Reg Block 1 (multimedia extensions) is at mmio_start - 0x400
2388 */
2389 if (M64_HAS(GX)) {
2390 info->fix.mmio_len = 0x400;
2391 info->fix.accel = FB_ACCEL_ATI_MACH64GX;
2392 } else if (M64_HAS(CT)) {
2393 info->fix.mmio_len = 0x400;
2394 info->fix.accel = FB_ACCEL_ATI_MACH64CT;
2395 } else if (M64_HAS(VT)) {
2396 info->fix.mmio_start -= 0x400;
2397 info->fix.mmio_len = 0x800;
2398 info->fix.accel = FB_ACCEL_ATI_MACH64VT;
2399 } else {/* GT */
2400 info->fix.mmio_start -= 0x400;
2401 info->fix.mmio_len = 0x800;
2402 info->fix.accel = FB_ACCEL_ATI_MACH64GT;
2403 }
2404
2405 PRINTKI("%d%c %s, %s MHz XTAL, %d MHz PLL, %d Mhz MCLK, %d MHz XCLK\n",
2406 info->fix.smem_len == 0x80000 ? 512 : (info->fix.smem_len >> 20),
2407 info->fix.smem_len == 0x80000 ? 'K' : 'M', ramname, xtal, par->pll_limits.pll_max,
2408 par->pll_limits.mclk, par->pll_limits.xclk);
2409
2410 #if defined(DEBUG) && defined(CONFIG_ATY_CT)
2411 if (M64_HAS(INTEGRATED)) {
2412 int i;
2413 printk("debug atyfb: BUS_CNTL DAC_CNTL MEM_CNTL EXT_MEM_CNTL CRTC_GEN_CNTL "
2414 "DSP_CONFIG DSP_ON_OFF CLOCK_CNTL\n"
2415 "debug atyfb: %08x %08x %08x %08x %08x %08x %08x %08x\n"
2416 "debug atyfb: PLL",
2417 aty_ld_le32(BUS_CNTL, par), aty_ld_le32(DAC_CNTL, par),
2418 aty_ld_le32(MEM_CNTL, par), aty_ld_le32(EXT_MEM_CNTL, par),
2419 aty_ld_le32(CRTC_GEN_CNTL, par), aty_ld_le32(DSP_CONFIG, par),
2420 aty_ld_le32(DSP_ON_OFF, par), aty_ld_le32(CLOCK_CNTL, par));
2421 for (i = 0; i < 40; i++)
2422 printk(" %02x", aty_ld_pll_ct(i, par));
2423 printk("\n");
2424 }
2425 #endif
2426 if(par->pll_ops->init_pll)
2427 par->pll_ops->init_pll(info, &par->pll);
2428
2429 /*
2430 * Last page of 8 MB (4 MB on ISA) aperture is MMIO
2431 * FIXME: we should use the auxiliary aperture instead so we can access
2432 * the full 8 MB of video RAM on 8 MB boards
2433 */
2434
2435 if (!par->aux_start &&
2436 (info->fix.smem_len == 0x800000 || (par->bus_type == ISA && info->fix.smem_len == 0x400000)))
2437 info->fix.smem_len -= GUI_RESERVE;
2438
2439 /*
2440 * Disable register access through the linear aperture
2441 * if the auxiliary aperture is used so we can access
2442 * the full 8 MB of video RAM on 8 MB boards.
2443 */
2444 if (par->aux_start)
2445 aty_st_le32(BUS_CNTL, aty_ld_le32(BUS_CNTL, par) | BUS_APER_REG_DIS, par);
2446
2447 #ifdef CONFIG_MTRR
2448 par->mtrr_aper = -1;
2449 par->mtrr_reg = -1;
2450 if (!nomtrr) {
2451 /* Cover the whole resource. */
2452 par->mtrr_aper = mtrr_add(par->res_start, par->res_size, MTRR_TYPE_WRCOMB, 1);
2453 if (par->mtrr_aper >= 0 && !par->aux_start) {
2454 /* Make a hole for mmio. */
2455 par->mtrr_reg = mtrr_add(par->res_start + 0x800000 - GUI_RESERVE,
2456 GUI_RESERVE, MTRR_TYPE_UNCACHABLE, 1);
2457 if (par->mtrr_reg < 0) {
2458 mtrr_del(par->mtrr_aper, 0, 0);
2459 par->mtrr_aper = -1;
2460 }
2461 }
2462 }
2463 #endif
2464
2465 info->fbops = &atyfb_ops;
2466 info->pseudo_palette = pseudo_palette;
2467 info->flags = FBINFO_FLAG_DEFAULT;
2468
2469 #ifdef CONFIG_PMAC_BACKLIGHT
2470 if (M64_HAS(G3_PB_1_1) && machine_is_compatible("PowerBook1,1")) {
2471 /* these bits let the 101 powerbook wake up from sleep -- paulus */
2472 aty_st_lcd(POWER_MANAGEMENT, aty_ld_lcd(POWER_MANAGEMENT, par)
2473 | (USE_F32KHZ | TRISTATE_MEM_EN), par);
2474 } else if (M64_HAS(MOBIL_BUS))
2475 register_backlight_controller(&aty_backlight_controller, info, "ati");
2476 #endif /* CONFIG_PMAC_BACKLIGHT */
2477
2478 memset(&var, 0, sizeof(var));
2479 #ifdef CONFIG_PPC
2480 if (_machine == _MACH_Pmac) {
2481 /*
2482 * FIXME: The NVRAM stuff should be put in a Mac-specific file, as it
2483 * applies to all Mac video cards
2484 */
2485 if (mode) {
2486 if (!mac_find_mode(&var, info, mode, 8))
2487 var = default_var;
2488 } else {
2489 if (default_vmode == VMODE_CHOOSE) {
2490 if (M64_HAS(G3_PB_1024x768))
2491 /* G3 PowerBook with 1024x768 LCD */
2492 default_vmode = VMODE_1024_768_60;
2493 else if (machine_is_compatible("iMac"))
2494 default_vmode = VMODE_1024_768_75;
2495 else if (machine_is_compatible
2496 ("PowerBook2,1"))
2497 /* iBook with 800x600 LCD */
2498 default_vmode = VMODE_800_600_60;
2499 else
2500 default_vmode = VMODE_640_480_67;
2501 sense = read_aty_sense(par);
2502 PRINTKI("monitor sense=%x, mode %d\n",
2503 sense, mac_map_monitor_sense(sense));
2504 }
2505 if (default_vmode <= 0 || default_vmode > VMODE_MAX)
2506 default_vmode = VMODE_640_480_60;
2507 if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
2508 default_cmode = CMODE_8;
2509 if (mac_vmode_to_var(default_vmode, default_cmode, &var))
2510 var = default_var;
2511 }
2512 } else
2513 #endif /* !CONFIG_PPC */
2514 if (
2515 #if defined(CONFIG_SPARC32) || defined(CONFIG_SPARC64)
2516 /* On Sparc, unless the user gave a specific mode
2517 * specification, use the PROM probed values in
2518 * default_var.
2519 */
2520 !mode ||
2521 #endif
2522 !fb_find_mode(&var, info, mode, NULL, 0, &defmode, 8))
2523 var = default_var;
2524
2525 if (noaccel)
2526 var.accel_flags &= ~FB_ACCELF_TEXT;
2527 else
2528 var.accel_flags |= FB_ACCELF_TEXT;
2529
2530 if (comp_sync != -1) {
2531 if (!comp_sync)
2532 var.sync &= ~FB_SYNC_COMP_HIGH_ACT;
2533 else
2534 var.sync |= FB_SYNC_COMP_HIGH_ACT;
2535 }
2536
2537 if (var.yres == var.yres_virtual) {
2538 u32 videoram = (info->fix.smem_len - (PAGE_SIZE << 2));
2539 var.yres_virtual = ((videoram * 8) / var.bits_per_pixel) / var.xres_virtual;
2540 if (var.yres_virtual < var.yres)
2541 var.yres_virtual = var.yres;
2542 }
2543
2544 if (atyfb_check_var(&var, info)) {
2545 PRINTKE("can't set default video mode\n");
2546 goto aty_init_exit;
2547 }
2548
2549 #ifdef __sparc__
2550 atyfb_save_palette(par, 0);
2551 #endif
2552
2553 #ifdef CONFIG_FB_ATY_CT
2554 if (!noaccel && M64_HAS(INTEGRATED))
2555 aty_init_cursor(info);
2556 #endif /* CONFIG_FB_ATY_CT */
2557 info->var = var;
2558
2559 fb_alloc_cmap(&info->cmap, 256, 0);
2560
2561 if (register_framebuffer(info) < 0)
2562 goto aty_init_exit;
2563
2564 fb_list = info;
2565
2566 PRINTKI("fb%d: %s frame buffer device on %s\n",
2567 info->node, info->fix.id, name);
2568 return 0;
2569
2570 aty_init_exit:
2571 /* restore video mode */
2572 aty_set_crtc(par, &saved_crtc);
2573 par->pll_ops->set_pll(info, &saved_pll);
2574
2575 #ifdef CONFIG_MTRR
2576 if (par->mtrr_reg >= 0) {
2577 mtrr_del(par->mtrr_reg, 0, 0);
2578 par->mtrr_reg = -1;
2579 }
2580 if (par->mtrr_aper >= 0) {
2581 mtrr_del(par->mtrr_aper, 0, 0);
2582 par->mtrr_aper = -1;
2583 }
2584 #endif
2585 return -1;
2586 }
2587
2588 #ifdef CONFIG_ATARI
2589 static int __init store_video_par(char *video_str, unsigned char m64_num)
2590 {
2591 char *p;
2592 unsigned long vmembase, size, guiregbase;
2593
2594 PRINTKI("store_video_par() '%s' \n", video_str);
2595
2596 if (!(p = strsep(&video_str, ";")) || !*p)
2597 goto mach64_invalid;
2598 vmembase = simple_strtoul(p, NULL, 0);
2599 if (!(p = strsep(&video_str, ";")) || !*p)
2600 goto mach64_invalid;
2601 size = simple_strtoul(p, NULL, 0);
2602 if (!(p = strsep(&video_str, ";")) || !*p)
2603 goto mach64_invalid;
2604 guiregbase = simple_strtoul(p, NULL, 0);
2605
2606 phys_vmembase[m64_num] = vmembase;
2607 phys_size[m64_num] = size;
2608 phys_guiregbase[m64_num] = guiregbase;
2609 PRINTKI("stored them all: $%08lX $%08lX $%08lX \n", vmembase, size,
2610 guiregbase);
2611 return 0;
2612
2613 mach64_invalid:
2614 phys_vmembase[m64_num] = 0;
2615 return -1;
2616 }
2617 #endif /* CONFIG_ATARI */
2618
2619 /*
2620 * Blank the display.
2621 */
2622
2623 static int atyfb_blank(int blank, struct fb_info *info)
2624 {
2625 struct atyfb_par *par = (struct atyfb_par *) info->par;
2626 u8 gen_cntl;
2627
2628 if (par->lock_blank || par->asleep)
2629 return 0;
2630
2631 #ifdef CONFIG_PMAC_BACKLIGHT
2632 if ((_machine == _MACH_Pmac) && blank)
2633 set_backlight_enable(0);
2634 #elif defined(CONFIG_FB_ATY_GENERIC_LCD)
2635 if (par->lcd_table && blank &&
2636 (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) {
2637 u32 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
2638 pm &= ~PWR_BLON;
2639 aty_st_lcd(POWER_MANAGEMENT, pm, par);
2640 }
2641 #endif
2642
2643 gen_cntl = aty_ld_8(CRTC_GEN_CNTL, par);
2644 switch (blank) {
2645 case FB_BLANK_UNBLANK:
2646 gen_cntl &= ~(0x4c);
2647 break;
2648 case FB_BLANK_NORMAL:
2649 gen_cntl |= 0x40;
2650 break;
2651 case FB_BLANK_VSYNC_SUSPEND:
2652 gen_cntl |= 0x8;
2653 break;
2654 case FB_BLANK_HSYNC_SUSPEND:
2655 gen_cntl |= 0x4;
2656 break;
2657 case FB_BLANK_POWERDOWN:
2658 gen_cntl |= 0x4c;
2659 break;
2660 }
2661 aty_st_8(CRTC_GEN_CNTL, gen_cntl, par);
2662
2663 #ifdef CONFIG_PMAC_BACKLIGHT
2664 if ((_machine == _MACH_Pmac) && !blank)
2665 set_backlight_enable(1);
2666 #elif defined(CONFIG_FB_ATY_GENERIC_LCD)
2667 if (par->lcd_table && !blank &&
2668 (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) {
2669 u32 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
2670 pm |= PWR_BLON;
2671 aty_st_lcd(POWER_MANAGEMENT, pm, par);
2672 }
2673 #endif
2674
2675 return 0;
2676 }
2677
2678 static void aty_st_pal(u_int regno, u_int red, u_int green, u_int blue,
2679 const struct atyfb_par *par)
2680 {
2681 #ifdef CONFIG_ATARI
2682 out_8(&par->aty_cmap_regs->windex, regno);
2683 out_8(&par->aty_cmap_regs->lut, red);
2684 out_8(&par->aty_cmap_regs->lut, green);
2685 out_8(&par->aty_cmap_regs->lut, blue);
2686 #else
2687 writeb(regno, &par->aty_cmap_regs->windex);
2688 writeb(red, &par->aty_cmap_regs->lut);
2689 writeb(green, &par->aty_cmap_regs->lut);
2690 writeb(blue, &par->aty_cmap_regs->lut);
2691 #endif
2692 }
2693
2694 /*
2695 * Set a single color register. The values supplied are already
2696 * rounded down to the hardware's capabilities (according to the
2697 * entries in the var structure). Return != 0 for invalid regno.
2698 * !! 4 & 8 = PSEUDO, > 8 = DIRECTCOLOR
2699 */
2700
2701 static int atyfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
2702 u_int transp, struct fb_info *info)
2703 {
2704 struct atyfb_par *par = (struct atyfb_par *) info->par;
2705 int i, depth;
2706 u32 *pal = info->pseudo_palette;
2707
2708 depth = info->var.bits_per_pixel;
2709 if (depth == 16)
2710 depth = (info->var.green.length == 5) ? 15 : 16;
2711
2712 if (par->asleep)
2713 return 0;
2714
2715 if (regno > 255 ||
2716 (depth == 16 && regno > 63) ||
2717 (depth == 15 && regno > 31))
2718 return 1;
2719
2720 red >>= 8;
2721 green >>= 8;
2722 blue >>= 8;
2723
2724 par->palette[regno].red = red;
2725 par->palette[regno].green = green;
2726 par->palette[regno].blue = blue;
2727
2728 if (regno < 16) {
2729 switch (depth) {
2730 case 15:
2731 pal[regno] = (regno << 10) | (regno << 5) | regno;
2732 break;
2733 case 16:
2734 pal[regno] = (regno << 11) | (regno << 5) | regno;
2735 break;
2736 case 24:
2737 pal[regno] = (regno << 16) | (regno << 8) | regno;
2738 break;
2739 case 32:
2740 i = (regno << 8) | regno;
2741 pal[regno] = (i << 16) | i;
2742 break;
2743 }
2744 }
2745
2746 i = aty_ld_8(DAC_CNTL, par) & 0xfc;
2747 if (M64_HAS(EXTRA_BRIGHT))
2748 i |= 0x2; /* DAC_CNTL | 0x2 turns off the extra brightness for gt */
2749 aty_st_8(DAC_CNTL, i, par);
2750 aty_st_8(DAC_MASK, 0xff, par);
2751
2752 if (M64_HAS(INTEGRATED)) {
2753 if (depth == 16) {
2754 if (regno < 32)
2755 aty_st_pal(regno << 3, red,
2756 par->palette[regno<<1].green,
2757 blue, par);
2758 red = par->palette[regno>>1].red;
2759 blue = par->palette[regno>>1].blue;
2760 regno <<= 2;
2761 } else if (depth == 15) {
2762 regno <<= 3;
2763 for(i = 0; i < 8; i++) {
2764 aty_st_pal(regno + i, red, green, blue, par);
2765 }
2766 }
2767 }
2768 aty_st_pal(regno, red, green, blue, par);
2769
2770 return 0;
2771 }
2772
2773 #ifdef CONFIG_PCI
2774
2775 #ifdef __sparc__
2776
2777 extern void (*prom_palette) (int);
2778
2779 static int __devinit atyfb_setup_sparc(struct pci_dev *pdev,
2780 struct fb_info *info, unsigned long addr)
2781 {
2782 extern int con_is_present(void);
2783
2784 struct atyfb_par *par = info->par;
2785 struct pcidev_cookie *pcp;
2786 char prop[128];
2787 int node, len, i, j, ret;
2788 u32 mem, chip_id;
2789
2790 /* Do not attach when we have a serial console. */
2791 if (!con_is_present())
2792 return -ENXIO;
2793
2794 /*
2795 * Map memory-mapped registers.
2796 */
2797 par->ati_regbase = (void *)addr + 0x7ffc00UL;
2798 info->fix.mmio_start = addr + 0x7ffc00UL;
2799
2800 /*
2801 * Map in big-endian aperture.
2802 */
2803 info->screen_base = (char *) (addr + 0x800000UL);
2804 info->fix.smem_start = addr + 0x800000UL;
2805
2806 /*
2807 * Figure mmap addresses from PCI config space.
2808 * Split Framebuffer in big- and little-endian halfs.
2809 */
2810 for (i = 0; i < 6 && pdev->resource[i].start; i++)
2811 /* nothing */ ;
2812 j = i + 4;
2813
2814 par->mmap_map = kmalloc(j * sizeof(*par->mmap_map), GFP_ATOMIC);
2815 if (!par->mmap_map) {
2816 PRINTKE("atyfb_setup_sparc() can't alloc mmap_map\n");
2817 return -ENOMEM;
2818 }
2819 memset(par->mmap_map, 0, j * sizeof(*par->mmap_map));
2820
2821 for (i = 0, j = 2; i < 6 && pdev->resource[i].start; i++) {
2822 struct resource *rp = &pdev->resource[i];
2823 int io, breg = PCI_BASE_ADDRESS_0 + (i << 2);
2824 unsigned long base;
2825 u32 size, pbase;
2826
2827 base = rp->start;
2828
2829 io = (rp->flags & IORESOURCE_IO);
2830
2831 size = rp->end - base + 1;
2832
2833 pci_read_config_dword(pdev, breg, &pbase);
2834
2835 if (io)
2836 size &= ~1;
2837
2838 /*
2839 * Map the framebuffer a second time, this time without
2840 * the braindead _PAGE_IE setting. This is used by the
2841 * fixed Xserver, but we need to maintain the old mapping
2842 * to stay compatible with older ones...
2843 */
2844 if (base == addr) {
2845 par->mmap_map[j].voff = (pbase + 0x10000000) & PAGE_MASK;
2846 par->mmap_map[j].poff = base & PAGE_MASK;
2847 par->mmap_map[j].size = (size + ~PAGE_MASK) & PAGE_MASK;
2848 par->mmap_map[j].prot_mask = _PAGE_CACHE;
2849 par->mmap_map[j].prot_flag = _PAGE_E;
2850 j++;
2851 }
2852
2853 /*
2854 * Here comes the old framebuffer mapping with _PAGE_IE
2855 * set for the big endian half of the framebuffer...
2856 */
2857 if (base == addr) {
2858 par->mmap_map[j].voff = (pbase + 0x800000) & PAGE_MASK;
2859 par->mmap_map[j].poff = (base + 0x800000) & PAGE_MASK;
2860 par->mmap_map[j].size = 0x800000;
2861 par->mmap_map[j].prot_mask = _PAGE_CACHE;
2862 par->mmap_map[j].prot_flag = _PAGE_E | _PAGE_IE;
2863 size -= 0x800000;
2864 j++;
2865 }
2866
2867 par->mmap_map[j].voff = pbase & PAGE_MASK;
2868 par->mmap_map[j].poff = base & PAGE_MASK;
2869 par->mmap_map[j].size = (size + ~PAGE_MASK) & PAGE_MASK;
2870 par->mmap_map[j].prot_mask = _PAGE_CACHE;
2871 par->mmap_map[j].prot_flag = _PAGE_E;
2872 j++;
2873 }
2874
2875 if((ret = correct_chipset(par)))
2876 return ret;
2877
2878 if (IS_XL(pdev->device)) {
2879 /*
2880 * Fix PROMs idea of MEM_CNTL settings...
2881 */
2882 mem = aty_ld_le32(MEM_CNTL, par);
2883 chip_id = aty_ld_le32(CONFIG_CHIP_ID, par);
2884 if (((chip_id & CFG_CHIP_TYPE) == VT_CHIP_ID) && !((chip_id >> 24) & 1)) {
2885 switch (mem & 0x0f) {
2886 case 3:
2887 mem = (mem & ~(0x0f)) | 2;
2888 break;
2889 case 7:
2890 mem = (mem & ~(0x0f)) | 3;
2891 break;
2892 case 9:
2893 mem = (mem & ~(0x0f)) | 4;
2894 break;
2895 case 11:
2896 mem = (mem & ~(0x0f)) | 5;
2897 break;
2898 default:
2899 break;
2900 }
2901 if ((aty_ld_le32(CONFIG_STAT0, par) & 7) >= SDRAM)
2902 mem &= ~(0x00700000);
2903 }
2904 mem &= ~(0xcf80e000); /* Turn off all undocumented bits. */
2905 aty_st_le32(MEM_CNTL, mem, par);
2906 }
2907
2908 /*
2909 * If this is the console device, we will set default video
2910 * settings to what the PROM left us with.
2911 */
2912 node = prom_getchild(prom_root_node);
2913 node = prom_searchsiblings(node, "aliases");
2914 if (node) {
2915 len = prom_getproperty(node, "screen", prop, sizeof(prop));
2916 if (len > 0) {
2917 prop[len] = '\0';
2918 node = prom_finddevice(prop);
2919 } else
2920 node = 0;
2921 }
2922
2923 pcp = pdev->sysdata;
2924 if (node == pcp->prom_node) {
2925 struct fb_var_screeninfo *var = &default_var;
2926 unsigned int N, P, Q, M, T, R;
2927 u32 v_total, h_total;
2928 struct crtc crtc;
2929 u8 pll_regs[16];
2930 u8 clock_cntl;
2931
2932 crtc.vxres = prom_getintdefault(node, "width", 1024);
2933 crtc.vyres = prom_getintdefault(node, "height", 768);
2934 var->bits_per_pixel = prom_getintdefault(node, "depth", 8);
2935 var->xoffset = var->yoffset = 0;
2936 crtc.h_tot_disp = aty_ld_le32(CRTC_H_TOTAL_DISP, par);
2937 crtc.h_sync_strt_wid = aty_ld_le32(CRTC_H_SYNC_STRT_WID, par);
2938 crtc.v_tot_disp = aty_ld_le32(CRTC_V_TOTAL_DISP, par);
2939 crtc.v_sync_strt_wid = aty_ld_le32(CRTC_V_SYNC_STRT_WID, par);
2940 crtc.gen_cntl = aty_ld_le32(CRTC_GEN_CNTL, par);
2941 aty_crtc_to_var(&crtc, var);
2942
2943 h_total = var->xres + var->right_margin + var->hsync_len + var->left_margin;
2944 v_total = var->yres + var->lower_margin + var->vsync_len + var->upper_margin;
2945
2946 /*
2947 * Read the PLL to figure actual Refresh Rate.
2948 */
2949 clock_cntl = aty_ld_8(CLOCK_CNTL, par);
2950 /* DPRINTK("CLOCK_CNTL %02x\n", clock_cntl); */
2951 for (i = 0; i < 16; i++)
2952 pll_regs[i] = aty_ld_pll_ct(i, par);
2953
2954 /*
2955 * PLL Reference Divider M:
2956 */
2957 M = pll_regs[2];
2958
2959 /*
2960 * PLL Feedback Divider N (Dependant on CLOCK_CNTL):
2961 */
2962 N = pll_regs[7 + (clock_cntl & 3)];
2963
2964 /*
2965 * PLL Post Divider P (Dependant on CLOCK_CNTL):
2966 */
2967 P = 1 << (pll_regs[6] >> ((clock_cntl & 3) << 1));
2968
2969 /*
2970 * PLL Divider Q:
2971 */
2972 Q = N / P;
2973
2974 /*
2975 * Target Frequency:
2976 *
2977 * T * M
2978 * Q = -------
2979 * 2 * R
2980 *
2981 * where R is XTALIN (= 14318 or 29498 kHz).
2982 */
2983 if (IS_XL(pdev->device))
2984 R = 29498;
2985 else
2986 R = 14318;
2987
2988 T = 2 * Q * R / M;
2989
2990 default_var.pixclock = 1000000000 / T;
2991 }
2992
2993 return 0;
2994 }
2995
2996 #else /* __sparc__ */
2997
2998 #ifdef __i386__
2999 #ifdef CONFIG_FB_ATY_GENERIC_LCD
3000 static void aty_init_lcd(struct atyfb_par *par, u32 bios_base)
3001 {
3002 u32 driv_inf_tab, sig;
3003 u16 lcd_ofs;
3004
3005 /* To support an LCD panel, we should know it's dimensions and
3006 * it's desired pixel clock.
3007 * There are two ways to do it:
3008 * - Check the startup video mode and calculate the panel
3009 * size from it. This is unreliable.
3010 * - Read it from the driver information table in the video BIOS.
3011 */
3012 /* Address of driver information table is at offset 0x78. */
3013 driv_inf_tab = bios_base + *((u16 *)(bios_base+0x78));
3014
3015 /* Check for the driver information table signature. */
3016 sig = (*(u32 *)driv_inf_tab);
3017 if ((sig == 0x54504c24) || /* Rage LT pro */
3018 (sig == 0x544d5224) || /* Rage mobility */
3019 (sig == 0x54435824) || /* Rage XC */
3020 (sig == 0x544c5824)) { /* Rage XL */
3021 PRINTKI("BIOS contains driver information table.\n");
3022 lcd_ofs = (*(u16 *)(driv_inf_tab + 10));
3023 par->lcd_table = 0;
3024 if (lcd_ofs != 0) {
3025 par->lcd_table = bios_base + lcd_ofs;
3026 }
3027 }
3028
3029 if (par->lcd_table != 0) {
3030 char model[24];
3031 char strbuf[16];
3032 char refresh_rates_buf[100];
3033 int id, tech, f, i, m, default_refresh_rate;
3034 char *txtcolour;
3035 char *txtmonitor;
3036 char *txtdual;
3037 char *txtformat;
3038 u16 width, height, panel_type, refresh_rates;
3039 u16 *lcdmodeptr;
3040 u32 format;
3041 u8 lcd_refresh_rates[16] = {50,56,60,67,70,72,75,76,85,90,100,120,140,150,160,200};
3042 /* The most important information is the panel size at
3043 * offset 25 and 27, but there's some other nice information
3044 * which we print to the screen.
3045 */
3046 id = *(u8 *)par->lcd_table;
3047 strncpy(model,(char *)par->lcd_table+1,24);
3048 model[23]=0;
3049
3050 width = par->lcd_width = *(u16 *)(par->lcd_table+25);
3051 height = par->lcd_height = *(u16 *)(par->lcd_table+27);
3052 panel_type = *(u16 *)(par->lcd_table+29);
3053 if (panel_type & 1)
3054 txtcolour = "colour";
3055 else
3056 txtcolour = "monochrome";
3057 if (panel_type & 2)
3058 txtdual = "dual (split) ";
3059 else
3060 txtdual = "";
3061 tech = (panel_type>>2) & 63;
3062 switch (tech) {
3063 case 0:
3064 txtmonitor = "passive matrix";
3065 break;
3066 case 1:
3067 txtmonitor = "active matrix";
3068 break;
3069 case 2:
3070 txtmonitor = "active addressed STN";
3071 break;
3072 case 3:
3073 txtmonitor = "EL";
3074 break;
3075 case 4:
3076 txtmonitor = "plasma";
3077 break;
3078 default:
3079 txtmonitor = "unknown";
3080 }
3081 format = *(u32 *)(par->lcd_table+57);
3082 if (tech == 0 || tech == 2) {
3083 switch (format & 7) {
3084 case 0:
3085 txtformat = "12 bit interface";
3086 break;
3087 case 1:
3088 txtformat = "16 bit interface";
3089 break;
3090 case 2:
3091 txtformat = "24 bit interface";
3092 break;
3093 default:
3094 txtformat = "unkown format";
3095 }
3096 } else {
3097 switch (format & 7) {
3098 case 0:
3099 txtformat = "8 colours";
3100 break;
3101 case 1:
3102 txtformat = "512 colours";
3103 break;
3104 case 2:
3105 txtformat = "4096 colours";
3106 break;
3107 case 4:
3108 txtformat = "262144 colours (LT mode)";
3109 break;
3110 case 5:
3111 txtformat = "16777216 colours";
3112 break;
3113 case 6:
3114 txtformat = "262144 colours (FDPI-2 mode)";
3115 break;
3116 default:
3117 txtformat = "unkown format";
3118 }
3119 }
3120 PRINTKI("%s%s %s monitor detected: %s\n",
3121 txtdual ,txtcolour, txtmonitor, model);
3122 PRINTKI(" id=%d, %dx%d pixels, %s\n",
3123 id, width, height, txtformat);
3124 refresh_rates_buf[0] = 0;
3125 refresh_rates = *(u16 *)(par->lcd_table+62);
3126 m = 1;
3127 f = 0;
3128 for (i=0;i<16;i++) {
3129 if (refresh_rates & m) {
3130 if (f == 0) {
3131 sprintf(strbuf, "%d", lcd_refresh_rates[i]);
3132 f++;
3133 } else {
3134 sprintf(strbuf, ",%d", lcd_refresh_rates[i]);
3135 }
3136 strcat(refresh_rates_buf,strbuf);
3137 }
3138 m = m << 1;
3139 }
3140 default_refresh_rate = (*(u8 *)(par->lcd_table+61) & 0xf0) >> 4;
3141 PRINTKI(" supports refresh rates [%s], default %d Hz\n",
3142 refresh_rates_buf, lcd_refresh_rates[default_refresh_rate]);
3143 par->lcd_refreshrate = lcd_refresh_rates[default_refresh_rate];
3144 /* We now need to determine the crtc parameters for the
3145 * lcd monitor. This is tricky, because they are not stored
3146 * individually in the BIOS. Instead, the BIOS contains a
3147 * table of display modes that work for this monitor.
3148 *
3149 * The idea is that we search for a mode of the same dimensions
3150 * as the dimensions of the lcd monitor. Say our lcd monitor
3151 * is 800x600 pixels, we search for a 800x600 monitor.
3152 * The CRTC parameters we find here are the ones that we need
3153 * to use to simulate other resolutions on the lcd screen.
3154 */
3155 lcdmodeptr = (u16 *)(par->lcd_table + 64);
3156 while (*lcdmodeptr != 0) {
3157 u32 modeptr;
3158 u16 mwidth, mheight, lcd_hsync_start, lcd_vsync_start;
3159 modeptr = bios_base + *lcdmodeptr;
3160
3161 mwidth = *((u16 *)(modeptr+0));
3162 mheight = *((u16 *)(modeptr+2));
3163
3164 if (mwidth == width && mheight == height) {
3165 par->lcd_pixclock = 100000000 / *((u16 *)(modeptr+9));
3166 par->lcd_htotal = *((u16 *)(modeptr+17)) & 511;
3167 par->lcd_hdisp = *((u16 *)(modeptr+19)) & 511;
3168 lcd_hsync_start = *((u16 *)(modeptr+21)) & 511;
3169 par->lcd_hsync_dly = (*((u16 *)(modeptr+21)) >> 9) & 7;
3170 par->lcd_hsync_len = *((u8 *)(modeptr+23)) & 63;
3171
3172 par->lcd_vtotal = *((u16 *)(modeptr+24)) & 2047;
3173 par->lcd_vdisp = *((u16 *)(modeptr+26)) & 2047;
3174 lcd_vsync_start = *((u16 *)(modeptr+28)) & 2047;
3175 par->lcd_vsync_len = (*((u16 *)(modeptr+28)) >> 11) & 31;
3176
3177 par->lcd_htotal = (par->lcd_htotal + 1) * 8;
3178 par->lcd_hdisp = (par->lcd_hdisp + 1) * 8;
3179 lcd_hsync_start = (lcd_hsync_start + 1) * 8;
3180 par->lcd_hsync_len = par->lcd_hsync_len * 8;
3181
3182 par->lcd_vtotal++;
3183 par->lcd_vdisp++;
3184 lcd_vsync_start++;
3185
3186 par->lcd_right_margin = lcd_hsync_start - par->lcd_hdisp;
3187 par->lcd_lower_margin = lcd_vsync_start - par->lcd_vdisp;
3188 par->lcd_hblank_len = par->lcd_htotal - par->lcd_hdisp;
3189 par->lcd_vblank_len = par->lcd_vtotal - par->lcd_vdisp;
3190 break;
3191 }
3192
3193 lcdmodeptr++;
3194 }
3195 if (*lcdmodeptr == 0) {
3196 PRINTKE("LCD monitor CRTC parameters not found!!!\n");
3197 /* To do: Switch to CRT if possible. */
3198 } else {
3199 PRINTKI(" LCD CRTC parameters: %d.%d %d %d %d %d %d %d %d %d\n",
3200 1000000 / par->lcd_pixclock, 1000000 % par->lcd_pixclock,
3201 par->lcd_hdisp,
3202 par->lcd_hdisp + par->lcd_right_margin,
3203 par->lcd_hdisp + par->lcd_right_margin
3204 + par->lcd_hsync_dly + par->lcd_hsync_len,
3205 par->lcd_htotal,
3206 par->lcd_vdisp,
3207 par->lcd_vdisp + par->lcd_lower_margin,
3208 par->lcd_vdisp + par->lcd_lower_margin + par->lcd_vsync_len,
3209 par->lcd_vtotal);
3210 PRINTKI(" : %d %d %d %d %d %d %d %d %d\n",
3211 par->lcd_pixclock,
3212 par->lcd_hblank_len - (par->lcd_right_margin +
3213 par->lcd_hsync_dly + par->lcd_hsync_len),
3214 par->lcd_hdisp,
3215 par->lcd_right_margin,
3216 par->lcd_hsync_len,
3217 par->lcd_vblank_len - (par->lcd_lower_margin + par->lcd_vsync_len),
3218 par->lcd_vdisp,
3219 par->lcd_lower_margin,
3220 par->lcd_vsync_len);
3221 }
3222 }
3223 }
3224 #endif /* CONFIG_FB_ATY_GENERIC_LCD */
3225
3226 static int __devinit init_from_bios(struct atyfb_par *par)
3227 {
3228 u32 bios_base, rom_addr;
3229 int ret;
3230
3231 rom_addr = 0xc0000 + ((aty_ld_le32(SCRATCH_REG1, par) & 0x7f) << 11);
3232 bios_base = (unsigned long)ioremap(rom_addr, 0x10000);
3233
3234 /* The BIOS starts with 0xaa55. */
3235 if (*((u16 *)bios_base) == 0xaa55) {
3236
3237 u8 *bios_ptr;
3238 u16 rom_table_offset, freq_table_offset;
3239 PLL_BLOCK_MACH64 pll_block;
3240
3241 PRINTKI("Mach64 BIOS is located at %x, mapped at %x.\n", rom_addr, bios_base);
3242
3243 /* check for frequncy table */
3244 bios_ptr = (u8*)bios_base;
3245 rom_table_offset = (u16)(bios_ptr[0x48] | (bios_ptr[0x49] << 8));
3246 freq_table_offset = bios_ptr[rom_table_offset + 16] | (bios_ptr[rom_table_offset + 17] << 8);
3247 memcpy(&pll_block, bios_ptr + freq_table_offset, sizeof(PLL_BLOCK_MACH64));
3248
3249 PRINTKI("BIOS frequency table:\n");
3250 PRINTKI("PCLK_min_freq %d, PCLK_max_freq %d, ref_freq %d, ref_divider %d\n",
3251 pll_block.PCLK_min_freq, pll_block.PCLK_max_freq,
3252 pll_block.ref_freq, pll_block.ref_divider);
3253 PRINTKI("MCLK_pwd %d, MCLK_max_freq %d, XCLK_max_freq %d, SCLK_freq %d\n",
3254 pll_block.MCLK_pwd, pll_block.MCLK_max_freq,
3255 pll_block.XCLK_max_freq, pll_block.SCLK_freq);
3256
3257 par->pll_limits.pll_min = pll_block.PCLK_min_freq/100;
3258 par->pll_limits.pll_max = pll_block.PCLK_max_freq/100;
3259 par->pll_limits.ref_clk = pll_block.ref_freq/100;
3260 par->pll_limits.ref_div = pll_block.ref_divider;
3261 par->pll_limits.sclk = pll_block.SCLK_freq/100;
3262 par->pll_limits.mclk = pll_block.MCLK_max_freq/100;
3263 par->pll_limits.mclk_pm = pll_block.MCLK_pwd/100;
3264 par->pll_limits.xclk = pll_block.XCLK_max_freq/100;
3265 #ifdef CONFIG_FB_ATY_GENERIC_LCD
3266 aty_init_lcd(par, bios_base);
3267 #endif
3268 ret = 0;
3269 } else {
3270 PRINTKE("no BIOS frequency table found, use parameters\n");
3271 ret = -ENXIO;
3272 }
3273 iounmap((void* __iomem )bios_base);
3274
3275 return ret;
3276 }
3277 #endif /* __i386__ */
3278
3279 static int __devinit atyfb_setup_generic(struct pci_dev *pdev, struct fb_info *info, unsigned long addr)
3280 {
3281 struct atyfb_par *par = info->par;
3282 u16 tmp;
3283 unsigned long raddr;
3284 struct resource *rrp;
3285 int ret = 0;
3286
3287 raddr = addr + 0x7ff000UL;
3288 rrp = &pdev->resource[2];
3289 if ((rrp->flags & IORESOURCE_MEM) && request_mem_region(rrp->start, rrp->end - rrp->start + 1, "atyfb")) {
3290 par->aux_start = rrp->start;
3291 par->aux_size = rrp->end - rrp->start + 1;
3292 raddr = rrp->start;
3293 PRINTKI("using auxiliary register aperture\n");
3294 }
3295
3296 info->fix.mmio_start = raddr;
3297 par->ati_regbase = ioremap(info->fix.mmio_start, 0x1000);
3298 if (par->ati_regbase == 0)
3299 return -ENOMEM;
3300
3301 info->fix.mmio_start += par->aux_start ? 0x400 : 0xc00;
3302 par->ati_regbase += par->aux_start ? 0x400 : 0xc00;
3303
3304 /*
3305 * Enable memory-space accesses using config-space
3306 * command register.
3307 */
3308 pci_read_config_word(pdev, PCI_COMMAND, &tmp);
3309 if (!(tmp & PCI_COMMAND_MEMORY)) {
3310 tmp |= PCI_COMMAND_MEMORY;
3311 pci_write_config_word(pdev, PCI_COMMAND, tmp);
3312 }
3313 #ifdef __BIG_ENDIAN
3314 /* Use the big-endian aperture */
3315 addr += 0x800000;
3316 #endif
3317
3318 /* Map in frame buffer */
3319 info->fix.smem_start = addr;
3320 info->screen_base = ioremap(addr, 0x800000);
3321 if (info->screen_base == NULL) {
3322 ret = -ENOMEM;
3323 goto atyfb_setup_generic_fail;
3324 }
3325
3326 if((ret = correct_chipset(par)))
3327 goto atyfb_setup_generic_fail;
3328 #ifdef __i386__
3329 if((ret = init_from_bios(par)))
3330 goto atyfb_setup_generic_fail;
3331 #endif
3332 if (!(aty_ld_le32(CRTC_GEN_CNTL, par) & CRTC_EXT_DISP_EN))
3333 par->clk_wr_offset = (inb(R_GENMO) & 0x0CU) >> 2;
3334 else
3335 par->clk_wr_offset = aty_ld_8(CLOCK_CNTL, par) & 0x03U;
3336
3337 /* according to ATI, we should use clock 3 for acelerated mode */
3338 par->clk_wr_offset = 3;
3339
3340 return 0;
3341
3342 atyfb_setup_generic_fail:
3343 iounmap(par->ati_regbase);
3344 par->ati_regbase = NULL;
3345 return ret;
3346 }
3347
3348 #endif /* !__sparc__ */
3349
3350 static int __devinit atyfb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
3351 {
3352 unsigned long addr, res_start, res_size;
3353 struct fb_info *info;
3354 struct resource *rp;
3355 struct atyfb_par *par;
3356 int i, rc = -ENOMEM;
3357
3358 for (i = sizeof(aty_chips) / sizeof(*aty_chips) - 1; i >= 0; i--)
3359 if (pdev->device == aty_chips[i].pci_id)
3360 break;
3361
3362 if (i < 0)
3363 return -ENODEV;
3364
3365 /* Enable device in PCI config */
3366 if (pci_enable_device(pdev)) {
3367 PRINTKE("Cannot enable PCI device\n");
3368 return -ENXIO;
3369 }
3370
3371 /* Find which resource to use */
3372 rp = &pdev->resource[0];
3373 if (rp->flags & IORESOURCE_IO)
3374 rp = &pdev->resource[1];
3375 addr = rp->start;
3376 if (!addr)
3377 return -ENXIO;
3378
3379 /* Reserve space */
3380 res_start = rp->start;
3381 res_size = rp->end - rp->start + 1;
3382 if (!request_mem_region (res_start, res_size, "atyfb"))
3383 return -EBUSY;
3384
3385 /* Allocate framebuffer */
3386 info = framebuffer_alloc(sizeof(struct atyfb_par), &pdev->dev);
3387 if (!info) {
3388 PRINTKE("atyfb_pci_probe() can't alloc fb_info\n");
3389 return -ENOMEM;
3390 }
3391 par = info->par;
3392 info->fix = atyfb_fix;
3393 info->device = &pdev->dev;
3394 par->pci_id = aty_chips[i].pci_id;
3395 par->res_start = res_start;
3396 par->res_size = res_size;
3397 par->irq = pdev->irq;
3398
3399 /* Setup "info" structure */
3400 #ifdef __sparc__
3401 rc = atyfb_setup_sparc(pdev, info, addr);
3402 #else
3403 rc = atyfb_setup_generic(pdev, info, addr);
3404 #endif
3405 if (rc)
3406 goto err_release_mem;
3407
3408 pci_set_drvdata(pdev, info);
3409
3410 /* Init chip & register framebuffer */
3411 if (aty_init(info, "PCI"))
3412 goto err_release_io;
3413
3414 #ifdef __sparc__
3415 if (!prom_palette)
3416 prom_palette = atyfb_palette;
3417
3418 /*
3419 * Add /dev/fb mmap values.
3420 */
3421 par->mmap_map[0].voff = 0x8000000000000000UL;
3422 par->mmap_map[0].poff = (unsigned long) info->screen_base & PAGE_MASK;
3423 par->mmap_map[0].size = info->fix.smem_len;
3424 par->mmap_map[0].prot_mask = _PAGE_CACHE;
3425 par->mmap_map[0].prot_flag = _PAGE_E;
3426 par->mmap_map[1].voff = par->mmap_map[0].voff + info->fix.smem_len;
3427 par->mmap_map[1].poff = (long)par->ati_regbase & PAGE_MASK;
3428 par->mmap_map[1].size = PAGE_SIZE;
3429 par->mmap_map[1].prot_mask = _PAGE_CACHE;
3430 par->mmap_map[1].prot_flag = _PAGE_E;
3431 #endif /* __sparc__ */
3432
3433 return 0;
3434
3435 err_release_io:
3436 #ifdef __sparc__
3437 kfree(par->mmap_map);
3438 #else
3439 if (par->ati_regbase)
3440 iounmap(par->ati_regbase);
3441 if (info->screen_base)
3442 iounmap(info->screen_base);
3443 #endif
3444 err_release_mem:
3445 if (par->aux_start)
3446 release_mem_region(par->aux_start, par->aux_size);
3447
3448 release_mem_region(par->res_start, par->res_size);
3449 framebuffer_release(info);
3450
3451 return rc;
3452 }
3453
3454 #endif /* CONFIG_PCI */
3455
3456 #ifdef CONFIG_ATARI
3457
3458 static int __devinit atyfb_atari_probe(void)
3459 {
3460 struct aty_par *par;
3461 struct fb_info *info;
3462 int m64_num;
3463 u32 clock_r;
3464
3465 for (m64_num = 0; m64_num < mach64_count; m64_num++) {
3466 if (!phys_vmembase[m64_num] || !phys_size[m64_num] ||
3467 !phys_guiregbase[m64_num]) {
3468 PRINTKI("phys_*[%d] parameters not set => returning early. \n", m64_num);
3469 continue;
3470 }
3471
3472 info = framebuffer_alloc(sizeof(struct atyfb_par), NULL);
3473 if (!info) {
3474 PRINTKE("atyfb_atari_probe() can't alloc fb_info\n");
3475 return -ENOMEM;
3476 }
3477 par = info->par;
3478
3479 info->fix = atyfb_fix;
3480
3481 par->irq = (unsigned int) -1; /* something invalid */
3482
3483 /*
3484 * Map the video memory (physical address given) to somewhere in the
3485 * kernel address space.
3486 */
3487 info->screen_base = ioremap(phys_vmembase[m64_num], phys_size[m64_num]);
3488 info->fix.smem_start = (unsigned long)info->screen_base; /* Fake! */
3489 par->ati_regbase = ioremap(phys_guiregbase[m64_num], 0x10000) +
3490 0xFC00ul;
3491 info->fix.mmio_start = (unsigned long)par->ati_regbase; /* Fake! */
3492
3493 aty_st_le32(CLOCK_CNTL, 0x12345678, par);
3494 clock_r = aty_ld_le32(CLOCK_CNTL, par);
3495
3496 switch (clock_r & 0x003F) {
3497 case 0x12:
3498 par->clk_wr_offset = 3; /* */
3499 break;
3500 case 0x34:
3501 par->clk_wr_offset = 2; /* Medusa ST-IO ISA Adapter etc. */
3502 break;
3503 case 0x16:
3504 par->clk_wr_offset = 1; /* */
3505 break;
3506 case 0x38:
3507 par->clk_wr_offset = 0; /* Panther 1 ISA Adapter (Gerald) */
3508 break;
3509 }
3510
3511 if (aty_init(info, "ISA bus")) {
3512 framebuffer_release(info);
3513 /* This is insufficient! kernel_map has added two large chunks!! */
3514 return -ENXIO;
3515 }
3516 }
3517 }
3518
3519 #endif /* CONFIG_ATARI */
3520
3521 static void __devexit atyfb_remove(struct fb_info *info)
3522 {
3523 struct atyfb_par *par = (struct atyfb_par *) info->par;
3524
3525 /* restore video mode */
3526 aty_set_crtc(par, &saved_crtc);
3527 par->pll_ops->set_pll(info, &saved_pll);
3528
3529 unregister_framebuffer(info);
3530
3531 #ifdef CONFIG_MTRR
3532 if (par->mtrr_reg >= 0) {
3533 mtrr_del(par->mtrr_reg, 0, 0);
3534 par->mtrr_reg = -1;
3535 }
3536 if (par->mtrr_aper >= 0) {
3537 mtrr_del(par->mtrr_aper, 0, 0);
3538 par->mtrr_aper = -1;
3539 }
3540 #endif
3541 #ifndef __sparc__
3542 if (par->ati_regbase)
3543 iounmap(par->ati_regbase);
3544 if (info->screen_base)
3545 iounmap(info->screen_base);
3546 #ifdef __BIG_ENDIAN
3547 if (info->sprite.addr)
3548 iounmap(info->sprite.addr);
3549 #endif
3550 #endif
3551 #ifdef __sparc__
3552 kfree(par->mmap_map);
3553 #endif
3554 if (par->aux_start)
3555 release_mem_region(par->aux_start, par->aux_size);
3556
3557 if (par->res_start)
3558 release_mem_region(par->res_start, par->res_size);
3559
3560 framebuffer_release(info);
3561 }
3562
3563 #ifdef CONFIG_PCI
3564
3565 static void __devexit atyfb_pci_remove(struct pci_dev *pdev)
3566 {
3567 struct fb_info *info = pci_get_drvdata(pdev);
3568
3569 atyfb_remove(info);
3570 }
3571
3572 /*
3573 * This driver uses its own matching table. That will be more difficult
3574 * to fix, so for now, we just match against any ATI ID and let the
3575 * probe() function find out what's up. That also mean we don't have
3576 * a module ID table though.
3577 */
3578 static struct pci_device_id atyfb_pci_tbl[] = {
3579 { PCI_VENDOR_ID_ATI, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
3580 PCI_BASE_CLASS_DISPLAY << 16, 0xff0000, 0 },
3581 { 0, }
3582 };
3583
3584 static struct pci_driver atyfb_driver = {
3585 .name = "atyfb",
3586 .id_table = atyfb_pci_tbl,
3587 .probe = atyfb_pci_probe,
3588 .remove = __devexit_p(atyfb_pci_remove),
3589 #ifdef CONFIG_PM
3590 .suspend = atyfb_pci_suspend,
3591 .resume = atyfb_pci_resume,
3592 #endif /* CONFIG_PM */
3593 };
3594
3595 #endif /* CONFIG_PCI */
3596
3597 #ifndef MODULE
3598 static int __init atyfb_setup(char *options)
3599 {
3600 char *this_opt;
3601
3602 if (!options || !*options)
3603 return 0;
3604
3605 while ((this_opt = strsep(&options, ",")) != NULL) {
3606 if (!strncmp(this_opt, "noaccel", 7)) {
3607 noaccel = 1;
3608 #ifdef CONFIG_MTRR
3609 } else if (!strncmp(this_opt, "nomtrr", 6)) {
3610 nomtrr = 1;
3611 #endif
3612 } else if (!strncmp(this_opt, "vram:", 5))
3613 vram = simple_strtoul(this_opt + 5, NULL, 0);
3614 else if (!strncmp(this_opt, "pll:", 4))
3615 pll = simple_strtoul(this_opt + 4, NULL, 0);
3616 else if (!strncmp(this_opt, "mclk:", 5))
3617 mclk = simple_strtoul(this_opt + 5, NULL, 0);
3618 else if (!strncmp(this_opt, "xclk:", 5))
3619 xclk = simple_strtoul(this_opt+5, NULL, 0);
3620 else if (!strncmp(this_opt, "comp_sync:", 10))
3621 comp_sync = simple_strtoul(this_opt+10, NULL, 0);
3622 #ifdef CONFIG_PPC
3623 else if (!strncmp(this_opt, "vmode:", 6)) {
3624 unsigned int vmode =
3625 simple_strtoul(this_opt + 6, NULL, 0);
3626 if (vmode > 0 && vmode <= VMODE_MAX)
3627 default_vmode = vmode;
3628 } else if (!strncmp(this_opt, "cmode:", 6)) {
3629 unsigned int cmode =
3630 simple_strtoul(this_opt + 6, NULL, 0);
3631 switch (cmode) {
3632 case 0:
3633 case 8:
3634 default_cmode = CMODE_8;
3635 break;
3636 case 15:
3637 case 16:
3638 default_cmode = CMODE_16;
3639 break;
3640 case 24:
3641 case 32:
3642 default_cmode = CMODE_32;
3643 break;
3644 }
3645 }
3646 #endif
3647 #ifdef CONFIG_ATARI
3648 /*
3649 * Why do we need this silly Mach64 argument?
3650 * We are already here because of mach64= so its redundant.
3651 */
3652 else if (MACH_IS_ATARI
3653 && (!strncmp(this_opt, "Mach64:", 7))) {
3654 static unsigned char m64_num;
3655 static char mach64_str[80];
3656 strlcpy(mach64_str, this_opt + 7, sizeof(mach64_str));
3657 if (!store_video_par(mach64_str, m64_num)) {
3658 m64_num++;
3659 mach64_count = m64_num;
3660 }
3661 }
3662 #endif
3663 else
3664 mode = this_opt;
3665 }
3666 return 0;
3667 }
3668 #endif /* MODULE */
3669
3670 static int __init atyfb_init(void)
3671 {
3672 #ifndef MODULE
3673 char *option = NULL;
3674
3675 if (fb_get_options("atyfb", &option))
3676 return -ENODEV;
3677 atyfb_setup(option);
3678 #endif
3679
3680 #ifdef CONFIG_PCI
3681 pci_register_driver(&atyfb_driver);
3682 #endif
3683 #ifdef CONFIG_ATARI
3684 atyfb_atari_probe();
3685 #endif
3686 return 0;
3687 }
3688
3689 static void __exit atyfb_exit(void)
3690 {
3691 #ifdef CONFIG_PCI
3692 pci_unregister_driver(&atyfb_driver);
3693 #endif
3694 }
3695
3696 module_init(atyfb_init);
3697 module_exit(atyfb_exit);
3698
3699 MODULE_DESCRIPTION("FBDev driver for ATI Mach64 cards");
3700 MODULE_LICENSE("GPL");
3701 module_param(noaccel, bool, 0);
3702 MODULE_PARM_DESC(noaccel, "bool: disable acceleration");
3703 module_param(vram, int, 0);
3704 MODULE_PARM_DESC(vram, "int: override size of video ram");
3705 module_param(pll, int, 0);
3706 MODULE_PARM_DESC(pll, "int: override video clock");
3707 module_param(mclk, int, 0);
3708 MODULE_PARM_DESC(mclk, "int: override memory clock");
3709 module_param(xclk, int, 0);
3710 MODULE_PARM_DESC(xclk, "int: override accelerated engine clock");
3711 module_param(comp_sync, int, 0);
3712 MODULE_PARM_DESC(comp_sync,
3713 "Set composite sync signal to low (0) or high (1)");
3714 module_param(mode, charp, 0);
3715 MODULE_PARM_DESC(mode, "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" ");
3716 #ifdef CONFIG_MTRR
3717 module_param(nomtrr, bool, 0);
3718 MODULE_PARM_DESC(nomtrr, "bool: disable use of MTRR registers");
3719 #endif
Linux kernel - Deliverables
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