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Automatic merge of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/gregkh/driver...
[linux-2.6/verdex.git] / drivers / video / radeonfb.c
blobc46387024b1d55717f4a8deaf5cd71dd71179a70
1 /*
2 * drivers/video/radeonfb.c
3 * framebuffer driver for ATI Radeon chipset video boards
4 *
5 * Copyright 2000 Ani Joshi <ajoshi@kernel.crashing.org>
6 *
7 *
8 * ChangeLog:
9 * 2000-08-03 initial version 0.0.1
10 * 2000-09-10 more bug fixes, public release 0.0.5
11 * 2001-02-19 mode bug fixes, 0.0.7
12 * 2001-07-05 fixed scrolling issues, engine initialization,
13 * and minor mode tweaking, 0.0.9
14 * 2001-09-07 Radeon VE support, Nick Kurshev
15 * blanking, pan_display, and cmap fixes, 0.1.0
16 * 2001-10-10 Radeon 7500 and 8500 support, and experimental
17 * flat panel support, 0.1.1
18 * 2001-11-17 Radeon M6 (ppc) support, Daniel Berlin, 0.1.2
19 * 2001-11-18 DFP fixes, Kevin Hendricks, 0.1.3
20 * 2001-11-29 more cmap, backlight fixes, Benjamin Herrenschmidt
21 * 2002-01-18 DFP panel detection via BIOS, Michael Clark, 0.1.4
22 * 2002-06-02 console switching, mode set fixes, accel fixes
23 * 2002-06-03 MTRR support, Peter Horton, 0.1.5
24 * 2002-09-21 rv250, r300, m9 initial support,
25 * added mirror option, 0.1.6
26 *
27 * Special thanks to ATI DevRel team for their hardware donations.
28 *
29 */
30
31
32 #define RADEON_VERSION "0.1.6"
33
34
35 #include <linux/config.h>
36 #include <linux/module.h>
37 #include <linux/kernel.h>
38 #include <linux/errno.h>
39 #include <linux/string.h>
40 #include <linux/mm.h>
41 #include <linux/tty.h>
42 #include <linux/slab.h>
43 #include <linux/delay.h>
44 #include <linux/fb.h>
45 #include <linux/ioport.h>
46 #include <linux/init.h>
47 #include <linux/pci.h>
48 #include <linux/vmalloc.h>
49
50 #include <asm/io.h>
51 #include <asm/uaccess.h>
52 #if defined(__powerpc__)
53 #include <asm/prom.h>
54 #include <asm/pci-bridge.h>
55 #include "macmodes.h"
56
57 #ifdef CONFIG_NVRAM
58 #include <linux/nvram.h>
59 #endif
60
61 #ifdef CONFIG_PMAC_BACKLIGHT
62 #include <asm/backlight.h>
63 #endif
64
65 #ifdef CONFIG_BOOTX_TEXT
66 #include <asm/btext.h>
67 #endif
68
69 #ifdef CONFIG_ADB_PMU
70 #include <linux/adb.h>
71 #include <linux/pmu.h>
72 #endif
73
74 #endif /* __powerpc__ */
75
76 #ifdef CONFIG_MTRR
77 #include <asm/mtrr.h>
78 #endif
79
80 #include <video/radeon.h>
81 #include <linux/radeonfb.h>
82
83 #define DEBUG 1
84
85 #if DEBUG
86 #define RTRACE printk
87 #else
88 #define RTRACE if(0) printk
89 #endif
90
91 // XXX
92 #undef CONFIG_PMAC_PBOOK
93
94
95 enum radeon_chips {
96 RADEON_QD,
97 RADEON_QE,
98 RADEON_QF,
99 RADEON_QG,
100 RADEON_QY,
101 RADEON_QZ,
102 RADEON_LW,
103 RADEON_LX,
104 RADEON_LY,
105 RADEON_LZ,
106 RADEON_QL,
107 RADEON_QN,
108 RADEON_QO,
109 RADEON_Ql,
110 RADEON_BB,
111 RADEON_QW,
112 RADEON_QX,
113 RADEON_Id,
114 RADEON_Ie,
115 RADEON_If,
116 RADEON_Ig,
117 RADEON_Ya,
118 RADEON_Yd,
119 RADEON_Ld,
120 RADEON_Le,
121 RADEON_Lf,
122 RADEON_Lg,
123 RADEON_ND,
124 RADEON_NE,
125 RADEON_NF,
126 RADEON_NG,
127 RADEON_QM
128 };
129
130 enum radeon_arch {
131 RADEON_R100,
132 RADEON_RV100,
133 RADEON_R200,
134 RADEON_RV200,
135 RADEON_RV250,
136 RADEON_R300,
137 RADEON_M6,
138 RADEON_M7,
139 RADEON_M9
140 };
141
142 static struct radeon_chip_info {
143 const char *name;
144 unsigned char arch;
145 } radeon_chip_info[] __devinitdata = {
146 { "QD", RADEON_R100 },
147 { "QE", RADEON_R100 },
148 { "QF", RADEON_R100 },
149 { "QG", RADEON_R100 },
150 { "VE QY", RADEON_RV100 },
151 { "VE QZ", RADEON_RV100 },
152 { "M7 LW", RADEON_M7 },
153 { "M7 LX", RADEON_M7 },
154 { "M6 LY", RADEON_M6 },
155 { "M6 LZ", RADEON_M6 },
156 { "8500 QL", RADEON_R200 },
157 { "8500 QN", RADEON_R200 },
158 { "8500 QO", RADEON_R200 },
159 { "8500 Ql", RADEON_R200 },
160 { "8500 BB", RADEON_R200 },
161 { "7500 QW", RADEON_RV200 },
162 { "7500 QX", RADEON_RV200 },
163 { "9000 Id", RADEON_RV250 },
164 { "9000 Ie", RADEON_RV250 },
165 { "9000 If", RADEON_RV250 },
166 { "9000 Ig", RADEON_RV250 },
167 { "M9 Ld", RADEON_M9 },
168 { "M9 Le", RADEON_M9 },
169 { "M9 Lf", RADEON_M9 },
170 { "M9 Lg", RADEON_M9 },
171 { "9700 ND", RADEON_R300 },
172 { "9700 NE", RADEON_R300 },
173 { "9700 NF", RADEON_R300 },
174 { "9700 NG", RADEON_R300 },
175 { "9100 QM", RADEON_R200 }
176 };
177
178
179 enum radeon_montype
180 {
181 MT_NONE,
182 MT_CRT, /* CRT */
183 MT_LCD, /* LCD */
184 MT_DFP, /* DVI */
185 MT_CTV, /* composite TV */
186 MT_STV /* S-Video out */
187 };
188
189
190 static struct pci_device_id radeonfb_pci_table[] = {
191 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_QD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_QD},
192 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_QE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_QE},
193 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_QF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_QF},
194 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_QG, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_QG},
195 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_QY, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_QY},
196 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_QZ, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_QZ},
197 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_LW, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_LW},
198 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_LX, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_LX},
199 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_LY, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_LY},
200 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_LZ, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_LZ},
201 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_QL, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_QL},
202 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_QN, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_QN},
203 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_QO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_QO},
204 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_Ql, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_Ql},
205 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_BB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_BB},
206 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_QW, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_QW},
207 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_QX, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_QX},
208 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_Id, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_Id},
209 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_Ie, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_Ie},
210 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_If, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_If},
211 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_Ig, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_Ig},
212 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_Ya, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_Ya},
213 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_Yd, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_Yd},
214 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_Ld, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_Ld},
215 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_Le, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_Le},
216 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_Lf, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_Lf},
217 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_Lg, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_Lg},
218 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_ND, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_ND},
219 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_NE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_NE},
220 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_NF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_NF},
221 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_NG, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_NG},
222 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_QM, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RADEON_QM},
223 { 0, }
224 };
225 MODULE_DEVICE_TABLE(pci, radeonfb_pci_table);
226
227
228 typedef struct {
229 u16 reg;
230 u32 val;
231 } reg_val;
232
233
234 /* these common regs are cleared before mode setting so they do not
235 * interfere with anything
236 */
237 static reg_val common_regs[] = {
238 { OVR_CLR, 0 },
239 { OVR_WID_LEFT_RIGHT, 0 },
240 { OVR_WID_TOP_BOTTOM, 0 },
241 { OV0_SCALE_CNTL, 0 },
242 { SUBPIC_CNTL, 0 },
243 { VIPH_CONTROL, 0 },
244 { I2C_CNTL_1, 0 },
245 { GEN_INT_CNTL, 0 },
246 { CAP0_TRIG_CNTL, 0 },
247 };
248
249 static reg_val common_regs_m6[] = {
250 { OVR_CLR, 0 },
251 { OVR_WID_LEFT_RIGHT, 0 },
252 { OVR_WID_TOP_BOTTOM, 0 },
253 { OV0_SCALE_CNTL, 0 },
254 { SUBPIC_CNTL, 0 },
255 { GEN_INT_CNTL, 0 },
256 { CAP0_TRIG_CNTL, 0 }
257 };
258
259 typedef struct {
260 u8 clock_chip_type;
261 u8 struct_size;
262 u8 accelerator_entry;
263 u8 VGA_entry;
264 u16 VGA_table_offset;
265 u16 POST_table_offset;
266 u16 XCLK;
267 u16 MCLK;
268 u8 num_PLL_blocks;
269 u8 size_PLL_blocks;
270 u16 PCLK_ref_freq;
271 u16 PCLK_ref_divider;
272 u32 PCLK_min_freq;
273 u32 PCLK_max_freq;
274 u16 MCLK_ref_freq;
275 u16 MCLK_ref_divider;
276 u32 MCLK_min_freq;
277 u32 MCLK_max_freq;
278 u16 XCLK_ref_freq;
279 u16 XCLK_ref_divider;
280 u32 XCLK_min_freq;
281 u32 XCLK_max_freq;
282 } __attribute__ ((packed)) PLL_BLOCK;
283
284
285 struct pll_info {
286 int ppll_max;
287 int ppll_min;
288 int xclk;
289 int ref_div;
290 int ref_clk;
291 };
292
293
294 struct ram_info {
295 int ml;
296 int mb;
297 int trcd;
298 int trp;
299 int twr;
300 int cl;
301 int tr2w;
302 int loop_latency;
303 int rloop;
304 };
305
306
307 struct radeon_regs {
308 /* CRTC regs */
309 u32 crtc_h_total_disp;
310 u32 crtc_h_sync_strt_wid;
311 u32 crtc_v_total_disp;
312 u32 crtc_v_sync_strt_wid;
313 u32 crtc_pitch;
314 u32 crtc_gen_cntl;
315 u32 crtc_ext_cntl;
316 u32 dac_cntl;
317
318 u32 flags;
319 u32 pix_clock;
320 int xres, yres;
321
322 /* DDA regs */
323 u32 dda_config;
324 u32 dda_on_off;
325
326 /* PLL regs */
327 u32 ppll_div_3;
328 u32 ppll_ref_div;
329 u32 vclk_ecp_cntl;
330
331 /* Flat panel regs */
332 u32 fp_crtc_h_total_disp;
333 u32 fp_crtc_v_total_disp;
334 u32 fp_gen_cntl;
335 u32 fp_h_sync_strt_wid;
336 u32 fp_horz_stretch;
337 u32 fp_panel_cntl;
338 u32 fp_v_sync_strt_wid;
339 u32 fp_vert_stretch;
340 u32 lvds_gen_cntl;
341 u32 lvds_pll_cntl;
342 u32 tmds_crc;
343 u32 tmds_transmitter_cntl;
344
345 #if defined(__BIG_ENDIAN)
346 u32 surface_cntl;
347 #endif
348 };
349
350
351 struct radeonfb_info {
352 struct fb_info info;
353
354 struct radeon_regs state;
355 struct radeon_regs init_state;
356
357 char name[32];
358 char ram_type[12];
359
360 unsigned long mmio_base_phys;
361 unsigned long fb_base_phys;
362
363 void __iomem *mmio_base;
364 void __iomem *fb_base;
365
366 struct pci_dev *pdev;
367
368 unsigned char *EDID;
369 unsigned char __iomem *bios_seg;
370
371 u32 pseudo_palette[17];
372 struct { u8 red, green, blue, pad; } palette[256];
373
374 int chipset;
375 unsigned char arch;
376 int video_ram;
377 u8 rev;
378 int pitch, bpp, depth;
379 int xres, yres, pixclock;
380 int xres_virtual, yres_virtual;
381 u32 accel_flags;
382
383 int use_default_var;
384 int got_dfpinfo;
385
386 int hasCRTC2;
387 int crtDisp_type;
388 int dviDisp_type;
389
390 int panel_xres, panel_yres;
391 int clock;
392 int hOver_plus, hSync_width, hblank;
393 int vOver_plus, vSync_width, vblank;
394 int hAct_high, vAct_high, interlaced;
395 int synct, misc;
396
397 u32 dp_gui_master_cntl;
398
399 struct pll_info pll;
400 int pll_output_freq, post_div, fb_div;
401
402 struct ram_info ram;
403
404 int mtrr_hdl;
405
406 #ifdef CONFIG_PMAC_PBOOK
407 int pm_reg;
408 u32 save_regs[64];
409 u32 mdll, mdll2;
410 #endif /* CONFIG_PMAC_PBOOK */
411 int asleep;
412
413 struct radeonfb_info *next;
414 };
415
416
417 static struct fb_var_screeninfo radeonfb_default_var = {
418 640, 480, 640, 480, 0, 0, 8, 0,
419 {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0},
420 0, 0, -1, -1, 0, 39721, 40, 24, 32, 11, 96, 2,
421 0, FB_VMODE_NONINTERLACED
422 };
423
424 /*
425 * IO macros
426 */
427
428 #define INREG8(addr) readb((rinfo->mmio_base)+addr)
429 #define OUTREG8(addr,val) writeb(val, (rinfo->mmio_base)+addr)
430 #define INREG(addr) readl((rinfo->mmio_base)+addr)
431 #define OUTREG(addr,val) writel(val, (rinfo->mmio_base)+addr)
432
433 #define OUTPLL(addr,val) \
434 do { \
435 OUTREG8(CLOCK_CNTL_INDEX, (addr & 0x0000003f) | 0x00000080); \
436 OUTREG(CLOCK_CNTL_DATA, val); \
437 } while(0)
438
439 #define OUTPLLP(addr,val,mask) \
440 do { \
441 unsigned int _tmp = INPLL(addr); \
442 _tmp &= (mask); \
443 _tmp |= (val); \
444 OUTPLL(addr, _tmp); \
445 } while (0)
446
447 #define OUTREGP(addr,val,mask) \
448 do { \
449 unsigned int _tmp = INREG(addr); \
450 _tmp &= (mask); \
451 _tmp |= (val); \
452 OUTREG(addr, _tmp); \
453 } while (0)
454
455
456 static __inline__ u32 _INPLL(struct radeonfb_info *rinfo, u32 addr)
457 {
458 OUTREG8(CLOCK_CNTL_INDEX, addr & 0x0000003f);
459 return (INREG(CLOCK_CNTL_DATA));
460 }
461
462 #define INPLL(addr) _INPLL(rinfo, addr)
463
464 #define PRIMARY_MONITOR(rinfo) ((rinfo->dviDisp_type != MT_NONE) && \
465 (rinfo->dviDisp_type != MT_STV) && \
466 (rinfo->dviDisp_type != MT_CTV) ? \
467 rinfo->dviDisp_type : rinfo->crtDisp_type)
468
469 static char *GET_MON_NAME(int type)
470 {
471 char *pret = NULL;
472
473 switch (type) {
474 case MT_NONE:
475 pret = "no";
476 break;
477 case MT_CRT:
478 pret = "CRT";
479 break;
480 case MT_DFP:
481 pret = "DFP";
482 break;
483 case MT_LCD:
484 pret = "LCD";
485 break;
486 case MT_CTV:
487 pret = "CTV";
488 break;
489 case MT_STV:
490 pret = "STV";
491 break;
492 }
493
494 return pret;
495 }
496
497
498 /*
499 * 2D engine routines
500 */
501
502 static __inline__ void radeon_engine_flush (struct radeonfb_info *rinfo)
503 {
504 int i;
505
506 /* initiate flush */
507 OUTREGP(RB2D_DSTCACHE_CTLSTAT, RB2D_DC_FLUSH_ALL,
508 ~RB2D_DC_FLUSH_ALL);
509
510 for (i=0; i < 2000000; i++) {
511 if (!(INREG(RB2D_DSTCACHE_CTLSTAT) & RB2D_DC_BUSY))
512 break;
513 }
514 }
515
516
517 static __inline__ void _radeon_fifo_wait (struct radeonfb_info *rinfo, int entries)
518 {
519 int i;
520
521 for (i=0; i<2000000; i++)
522 if ((INREG(RBBM_STATUS) & 0x7f) >= entries)
523 return;
524 }
525
526
527 static __inline__ void _radeon_engine_idle (struct radeonfb_info *rinfo)
528 {
529 int i;
530
531 /* ensure FIFO is empty before waiting for idle */
532 _radeon_fifo_wait (rinfo, 64);
533
534 for (i=0; i<2000000; i++) {
535 if (((INREG(RBBM_STATUS) & GUI_ACTIVE)) == 0) {
536 radeon_engine_flush (rinfo);
537 return;
538 }
539 }
540 }
541
542
543 #define radeon_engine_idle() _radeon_engine_idle(rinfo)
544 #define radeon_fifo_wait(entries) _radeon_fifo_wait(rinfo,entries)
545
546
547
548 /*
549 * helper routines
550 */
551
552 static __inline__ u32 radeon_get_dstbpp(u16 depth)
553 {
554 switch (depth) {
555 case 8:
556 return DST_8BPP;
557 case 15:
558 return DST_15BPP;
559 case 16:
560 return DST_16BPP;
561 case 32:
562 return DST_32BPP;
563 default:
564 return 0;
565 }
566 }
567
568
569 static inline int var_to_depth(const struct fb_var_screeninfo *var)
570 {
571 if (var->bits_per_pixel != 16)
572 return var->bits_per_pixel;
573 return (var->green.length == 6) ? 16 : 15;
574 }
575
576
577 static void _radeon_engine_reset(struct radeonfb_info *rinfo)
578 {
579 u32 clock_cntl_index, mclk_cntl, rbbm_soft_reset;
580
581 radeon_engine_flush (rinfo);
582
583 clock_cntl_index = INREG(CLOCK_CNTL_INDEX);
584 mclk_cntl = INPLL(MCLK_CNTL);
585
586 OUTPLL(MCLK_CNTL, (mclk_cntl |
587 FORCEON_MCLKA |
588 FORCEON_MCLKB |
589 FORCEON_YCLKA |
590 FORCEON_YCLKB |
591 FORCEON_MC |
592 FORCEON_AIC));
593 rbbm_soft_reset = INREG(RBBM_SOFT_RESET);
594
595 OUTREG(RBBM_SOFT_RESET, rbbm_soft_reset |
596 SOFT_RESET_CP |
597 SOFT_RESET_HI |
598 SOFT_RESET_SE |
599 SOFT_RESET_RE |
600 SOFT_RESET_PP |
601 SOFT_RESET_E2 |
602 SOFT_RESET_RB);
603 INREG(RBBM_SOFT_RESET);
604 OUTREG(RBBM_SOFT_RESET, rbbm_soft_reset & (u32)
605 ~(SOFT_RESET_CP |
606 SOFT_RESET_HI |
607 SOFT_RESET_SE |
608 SOFT_RESET_RE |
609 SOFT_RESET_PP |
610 SOFT_RESET_E2 |
611 SOFT_RESET_RB));
612 INREG(RBBM_SOFT_RESET);
613
614 OUTPLL(MCLK_CNTL, mclk_cntl);
615 OUTREG(CLOCK_CNTL_INDEX, clock_cntl_index);
616 OUTREG(RBBM_SOFT_RESET, rbbm_soft_reset);
617
618 return;
619 }
620
621 #define radeon_engine_reset() _radeon_engine_reset(rinfo)
622
623
624 static __inline__ int round_div(int num, int den)
625 {
626 return (num + (den / 2)) / den;
627 }
628
629
630
631 static __inline__ int min_bits_req(int val)
632 {
633 int bits_req = 0;
634
635 if (val == 0)
636 bits_req = 1;
637
638 while (val) {
639 val >>= 1;
640 bits_req++;
641 }
642
643 return (bits_req);
644 }
645
646
647 static __inline__ int _max(int val1, int val2)
648 {
649 if (val1 >= val2)
650 return val1;
651 else
652 return val2;
653 }
654
655
656
657 /*
658 * globals
659 */
660
661 #ifndef MODULE
662 static char *mode_option;
663 #endif
664
665 static char noaccel = 0;
666 static char mirror = 0;
667 static int panel_yres = 0;
668 static char force_dfp = 0;
669 static struct radeonfb_info *board_list = NULL;
670 static char nomtrr = 0;
671
672 /*
673 * prototypes
674 */
675
676 static void radeon_save_state (struct radeonfb_info *rinfo,
677 struct radeon_regs *save);
678 static void radeon_engine_init (struct radeonfb_info *rinfo);
679 static void radeon_write_mode (struct radeonfb_info *rinfo,
680 struct radeon_regs *mode);
681 static int __devinit radeon_set_fbinfo (struct radeonfb_info *rinfo);
682 static int __devinit radeon_init_disp (struct radeonfb_info *rinfo);
683 static int radeon_init_disp_var (struct radeonfb_info *rinfo, struct fb_var_screeninfo *var);
684 static void __iomem *radeon_find_rom(struct radeonfb_info *rinfo);
685 static void radeon_get_pllinfo(struct radeonfb_info *rinfo, void __iomem *bios_seg);
686 static void radeon_get_moninfo (struct radeonfb_info *rinfo);
687 static int radeon_get_dfpinfo (struct radeonfb_info *rinfo);
688 static int radeon_get_dfpinfo_BIOS(struct radeonfb_info *rinfo);
689 static void radeon_get_EDID(struct radeonfb_info *rinfo);
690 static int radeon_dfp_parse_EDID(struct radeonfb_info *rinfo);
691 static void radeon_update_default_var(struct radeonfb_info *rinfo);
692
693 #ifdef CONFIG_PPC_OF
694
695 static int radeon_read_OF (struct radeonfb_info *rinfo);
696 static int radeon_get_EDID_OF(struct radeonfb_info *rinfo);
697 extern struct device_node *pci_device_to_OF_node(struct pci_dev *dev);
698
699 #ifdef CONFIG_PMAC_PBOOK
700 int radeon_sleep_notify(struct pmu_sleep_notifier *self, int when);
701 static struct pmu_sleep_notifier radeon_sleep_notifier = {
702 radeon_sleep_notify, SLEEP_LEVEL_VIDEO,
703 };
704 #endif /* CONFIG_PMAC_PBOOK */
705 #ifdef CONFIG_PMAC_BACKLIGHT
706 static int radeon_set_backlight_enable(int on, int level, void *data);
707 static int radeon_set_backlight_level(int level, void *data);
708 static struct backlight_controller radeon_backlight_controller = {
709 radeon_set_backlight_enable,
710 radeon_set_backlight_level
711 };
712 #endif /* CONFIG_PMAC_BACKLIGHT */
713
714 #endif /* CONFIG_PPC_OF */
715
716
717 static void __iomem *radeon_find_rom(struct radeonfb_info *rinfo)
718 {
719 #if defined(__i386__)
720 u32 segstart;
721 char __iomem *rom_base;
722 char __iomem *rom;
723 int stage;
724 int i,j;
725 char aty_rom_sig[] = "761295520";
726 char *radeon_sig[] = {
727 "RG6",
728 "RADEON"
729 };
730
731 for(segstart=0x000c0000; segstart<0x000f0000; segstart+=0x00001000) {
732
733 stage = 1;
734
735 rom_base = ioremap(segstart, 0x1000);
736
737 if ((*rom_base == 0x55) && (((*(rom_base + 1)) & 0xff) == 0xaa))
738 stage = 2;
739
740
741 if (stage != 2) {
742 iounmap(rom_base);
743 continue;
744 }
745
746 rom = rom_base;
747
748 for (i = 0; (i < 128 - strlen(aty_rom_sig)) && (stage != 3); i++) {
749 if (aty_rom_sig[0] == *rom)
750 if (strncmp(aty_rom_sig, rom,
751 strlen(aty_rom_sig)) == 0)
752 stage = 3;
753 rom++;
754 }
755 if (stage != 3) {
756 iounmap(rom_base);
757 continue;
758 }
759 rom = rom_base;
760
761 for (i = 0; (i < 512) && (stage != 4); i++) {
762 for(j = 0;j < sizeof(radeon_sig)/sizeof(char *);j++) {
763 if (radeon_sig[j][0] == *rom)
764 if (strncmp(radeon_sig[j], rom,
765 strlen(radeon_sig[j])) == 0) {
766 stage = 4;
767 break;
768 }
769 }
770 rom++;
771 }
772 if (stage != 4) {
773 iounmap(rom_base);
774 continue;
775 }
776
777 return rom_base;
778 }
779 #endif
780 return NULL;
781 }
782
783
784
785
786 static void radeon_get_pllinfo(struct radeonfb_info *rinfo, void __iomem *bios_seg)
787 {
788 void __iomem *bios_header;
789 void __iomem *header_ptr;
790 u16 bios_header_offset, pll_info_offset;
791 PLL_BLOCK pll;
792
793 if (bios_seg) {
794 bios_header = bios_seg + 0x48L;
795 header_ptr = bios_header;
796
797 bios_header_offset = readw(header_ptr);
798 bios_header = bios_seg + bios_header_offset;
799 bios_header += 0x30;
800
801 header_ptr = bios_header;
802 pll_info_offset = readw(header_ptr);
803 header_ptr = bios_seg + pll_info_offset;
804
805 memcpy_fromio(&pll, header_ptr, 50);
806
807 rinfo->pll.xclk = (u32)pll.XCLK;
808 rinfo->pll.ref_clk = (u32)pll.PCLK_ref_freq;
809 rinfo->pll.ref_div = (u32)pll.PCLK_ref_divider;
810 rinfo->pll.ppll_min = pll.PCLK_min_freq;
811 rinfo->pll.ppll_max = pll.PCLK_max_freq;
812
813 printk("radeonfb: ref_clk=%d, ref_div=%d, xclk=%d from BIOS\n",
814 rinfo->pll.ref_clk, rinfo->pll.ref_div, rinfo->pll.xclk);
815 } else {
816 #ifdef CONFIG_PPC_OF
817 if (radeon_read_OF(rinfo)) {
818 unsigned int tmp, Nx, M, ref_div, xclk;
819
820 tmp = INPLL(M_SPLL_REF_FB_DIV);
821 ref_div = INPLL(PPLL_REF_DIV) & 0x3ff;
822
823 Nx = (tmp & 0xff00) >> 8;
824 M = (tmp & 0xff);
825 xclk = ((((2 * Nx * rinfo->pll.ref_clk) + (M)) /
826 (2 * M)));
827
828 rinfo->pll.xclk = xclk;
829 rinfo->pll.ref_div = ref_div;
830 rinfo->pll.ppll_min = 12000;
831 rinfo->pll.ppll_max = 35000;
832
833 printk("radeonfb: ref_clk=%d, ref_div=%d, xclk=%d from OF\n",
834 rinfo->pll.ref_clk, rinfo->pll.ref_div, rinfo->pll.xclk);
835
836 return;
837 }
838 #endif
839 /* no BIOS or BIOS not found, use defaults */
840 switch (rinfo->chipset) {
841 case PCI_DEVICE_ID_ATI_RADEON_QW:
842 case PCI_DEVICE_ID_ATI_RADEON_QX:
843 rinfo->pll.ppll_max = 35000;
844 rinfo->pll.ppll_min = 12000;
845 rinfo->pll.xclk = 23000;
846 rinfo->pll.ref_div = 12;
847 rinfo->pll.ref_clk = 2700;
848 break;
849 case PCI_DEVICE_ID_ATI_RADEON_QL:
850 case PCI_DEVICE_ID_ATI_RADEON_QN:
851 case PCI_DEVICE_ID_ATI_RADEON_QO:
852 case PCI_DEVICE_ID_ATI_RADEON_Ql:
853 case PCI_DEVICE_ID_ATI_RADEON_BB:
854 rinfo->pll.ppll_max = 35000;
855 rinfo->pll.ppll_min = 12000;
856 rinfo->pll.xclk = 27500;
857 rinfo->pll.ref_div = 12;
858 rinfo->pll.ref_clk = 2700;
859 break;
860 case PCI_DEVICE_ID_ATI_RADEON_Id:
861 case PCI_DEVICE_ID_ATI_RADEON_Ie:
862 case PCI_DEVICE_ID_ATI_RADEON_If:
863 case PCI_DEVICE_ID_ATI_RADEON_Ig:
864 rinfo->pll.ppll_max = 35000;
865 rinfo->pll.ppll_min = 12000;
866 rinfo->pll.xclk = 25000;
867 rinfo->pll.ref_div = 12;
868 rinfo->pll.ref_clk = 2700;
869 break;
870 case PCI_DEVICE_ID_ATI_RADEON_ND:
871 case PCI_DEVICE_ID_ATI_RADEON_NE:
872 case PCI_DEVICE_ID_ATI_RADEON_NF:
873 case PCI_DEVICE_ID_ATI_RADEON_NG:
874 rinfo->pll.ppll_max = 40000;
875 rinfo->pll.ppll_min = 20000;
876 rinfo->pll.xclk = 27000;
877 rinfo->pll.ref_div = 12;
878 rinfo->pll.ref_clk = 2700;
879 break;
880 case PCI_DEVICE_ID_ATI_RADEON_QD:
881 case PCI_DEVICE_ID_ATI_RADEON_QE:
882 case PCI_DEVICE_ID_ATI_RADEON_QF:
883 case PCI_DEVICE_ID_ATI_RADEON_QG:
884 default:
885 rinfo->pll.ppll_max = 35000;
886 rinfo->pll.ppll_min = 12000;
887 rinfo->pll.xclk = 16600;
888 rinfo->pll.ref_div = 67;
889 rinfo->pll.ref_clk = 2700;
890 break;
891 }
892
893 printk("radeonfb: ref_clk=%d, ref_div=%d, xclk=%d defaults\n",
894 rinfo->pll.ref_clk, rinfo->pll.ref_div, rinfo->pll.xclk);
895 }
896 }
897
898
899 static void radeon_get_moninfo (struct radeonfb_info *rinfo)
900 {
901 unsigned int tmp;
902
903 if (force_dfp) {
904 rinfo->dviDisp_type = MT_DFP;
905 return;
906 }
907
908 tmp = INREG(BIOS_4_SCRATCH);
909 printk(KERN_DEBUG "radeon_get_moninfo: bios 4 scratch = %x\n", tmp);
910
911 if (rinfo->hasCRTC2) {
912 /* primary DVI port */
913 if (tmp & 0x08)
914 rinfo->dviDisp_type = MT_DFP;
915 else if (tmp & 0x4)
916 rinfo->dviDisp_type = MT_LCD;
917 else if (tmp & 0x200)
918 rinfo->dviDisp_type = MT_CRT;
919 else if (tmp & 0x10)
920 rinfo->dviDisp_type = MT_CTV;
921 else if (tmp & 0x20)
922 rinfo->dviDisp_type = MT_STV;
923
924 /* secondary CRT port */
925 if (tmp & 0x2)
926 rinfo->crtDisp_type = MT_CRT;
927 else if (tmp & 0x800)
928 rinfo->crtDisp_type = MT_DFP;
929 else if (tmp & 0x400)
930 rinfo->crtDisp_type = MT_LCD;
931 else if (tmp & 0x1000)
932 rinfo->crtDisp_type = MT_CTV;
933 else if (tmp & 0x2000)
934 rinfo->crtDisp_type = MT_STV;
935 } else {
936 rinfo->dviDisp_type = MT_NONE;
937
938 tmp = INREG(FP_GEN_CNTL);
939
940 if (tmp & FP_EN_TMDS)
941 rinfo->crtDisp_type = MT_DFP;
942 else
943 rinfo->crtDisp_type = MT_CRT;
944 }
945 }
946
947
948
949 static void radeon_get_EDID(struct radeonfb_info *rinfo)
950 {
951 #ifdef CONFIG_PPC_OF
952 if (!radeon_get_EDID_OF(rinfo))
953 RTRACE("radeonfb: could not retrieve EDID from OF\n");
954 #else
955 /* XXX use other methods later */
956 #endif
957 }
958
959
960 #ifdef CONFIG_PPC_OF
961 static int radeon_get_EDID_OF(struct radeonfb_info *rinfo)
962 {
963 struct device_node *dp;
964 unsigned char *pedid = NULL;
965 static char *propnames[] = { "DFP,EDID", "LCD,EDID", "EDID", "EDID1", NULL };
966 int i;
967
968 dp = pci_device_to_OF_node(rinfo->pdev);
969 while (dp != NULL) {
970 for (i = 0; propnames[i] != NULL; ++i) {
971 pedid = (unsigned char *)
972 get_property(dp, propnames[i], NULL);
973 if (pedid != NULL) {
974 rinfo->EDID = pedid;
975 return 1;
976 }
977 }
978 dp = dp->child;
979 }
980 return 0;
981 }
982 #endif /* CONFIG_PPC_OF */
983
984
985 static int radeon_dfp_parse_EDID(struct radeonfb_info *rinfo)
986 {
987 unsigned char *block = rinfo->EDID;
988
989 if (!block)
990 return 0;
991
992 /* jump to the detailed timing block section */
993 block += 54;
994
995 rinfo->clock = (block[0] + (block[1] << 8));
996 rinfo->panel_xres = (block[2] + ((block[4] & 0xf0) << 4));
997 rinfo->hblank = (block[3] + ((block[4] & 0x0f) << 8));
998 rinfo->panel_yres = (block[5] + ((block[7] & 0xf0) << 4));
999 rinfo->vblank = (block[6] + ((block[7] & 0x0f) << 8));
1000 rinfo->hOver_plus = (block[8] + ((block[11] & 0xc0) << 2));
1001 rinfo->hSync_width = (block[9] + ((block[11] & 0x30) << 4));
1002 rinfo->vOver_plus = ((block[10] >> 4) + ((block[11] & 0x0c) << 2));
1003 rinfo->vSync_width = ((block[10] & 0x0f) + ((block[11] & 0x03) << 4));
1004 rinfo->interlaced = ((block[17] & 0x80) >> 7);
1005 rinfo->synct = ((block[17] & 0x18) >> 3);
1006 rinfo->misc = ((block[17] & 0x06) >> 1);
1007 rinfo->hAct_high = rinfo->vAct_high = 0;
1008 if (rinfo->synct == 3) {
1009 if (rinfo->misc & 2)
1010 rinfo->hAct_high = 1;
1011 if (rinfo->misc & 1)
1012 rinfo->vAct_high = 1;
1013 }
1014
1015 printk("radeonfb: detected DFP panel size from EDID: %dx%d\n",
1016 rinfo->panel_xres, rinfo->panel_yres);
1017
1018 rinfo->got_dfpinfo = 1;
1019
1020 return 1;
1021 }
1022
1023
1024 static void radeon_update_default_var(struct radeonfb_info *rinfo)
1025 {
1026 struct fb_var_screeninfo *var = &radeonfb_default_var;
1027
1028 var->xres = rinfo->panel_xres;
1029 var->yres = rinfo->panel_yres;
1030 var->xres_virtual = rinfo->panel_xres;
1031 var->yres_virtual = rinfo->panel_yres;
1032 var->xoffset = var->yoffset = 0;
1033 var->bits_per_pixel = 8;
1034 var->pixclock = 100000000 / rinfo->clock;
1035 var->left_margin = (rinfo->hblank - rinfo->hOver_plus - rinfo->hSync_width);
1036 var->right_margin = rinfo->hOver_plus;
1037 var->upper_margin = (rinfo->vblank - rinfo->vOver_plus - rinfo->vSync_width);
1038 var->lower_margin = rinfo->vOver_plus;
1039 var->hsync_len = rinfo->hSync_width;
1040 var->vsync_len = rinfo->vSync_width;
1041 var->sync = 0;
1042 if (rinfo->synct == 3) {
1043 if (rinfo->hAct_high)
1044 var->sync |= FB_SYNC_HOR_HIGH_ACT;
1045 if (rinfo->vAct_high)
1046 var->sync |= FB_SYNC_VERT_HIGH_ACT;
1047 }
1048
1049 var->vmode = 0;
1050 if (rinfo->interlaced)
1051 var->vmode |= FB_VMODE_INTERLACED;
1052
1053 rinfo->use_default_var = 1;
1054 }
1055
1056
1057 static int radeon_get_dfpinfo_BIOS(struct radeonfb_info *rinfo)
1058 {
1059 char __iomem *fpbiosstart, *tmp, *tmp0;
1060 char stmp[30];
1061 int i;
1062
1063 if (!rinfo->bios_seg)
1064 return 0;
1065
1066 if (!(fpbiosstart = rinfo->bios_seg + readw(rinfo->bios_seg + 0x48))) {
1067 printk("radeonfb: Failed to detect DFP panel info using BIOS\n");
1068 return 0;
1069 }
1070
1071 if (!(tmp = rinfo->bios_seg + readw(fpbiosstart + 0x40))) {
1072 printk("radeonfb: Failed to detect DFP panel info using BIOS\n");
1073 return 0;
1074 }
1075
1076 for(i=0; i<24; i++)
1077 stmp[i] = readb(tmp+i+1);
1078 stmp[24] = 0;
1079 printk("radeonfb: panel ID string: %s\n", stmp);
1080 rinfo->panel_xres = readw(tmp + 25);
1081 rinfo->panel_yres = readw(tmp + 27);
1082 printk("radeonfb: detected DFP panel size from BIOS: %dx%d\n",
1083 rinfo->panel_xres, rinfo->panel_yres);
1084
1085 for(i=0; i<32; i++) {
1086 tmp0 = rinfo->bios_seg + readw(tmp+64+i*2);
1087 if (tmp0 == 0)
1088 break;
1089 if ((readw(tmp0) == rinfo->panel_xres) &&
1090 (readw(tmp0+2) == rinfo->panel_yres)) {
1091 rinfo->hblank = (readw(tmp0+17) - readw(tmp0+19)) * 8;
1092 rinfo->hOver_plus = ((readw(tmp0+21) - readw(tmp0+19) -1) * 8) & 0x7fff;
1093 rinfo->hSync_width = readb(tmp0+23) * 8;
1094 rinfo->vblank = readw(tmp0+24) - readw(tmp0+26);
1095 rinfo->vOver_plus = (readw(tmp0+28) & 0x7ff) - readw(tmp0+26);
1096 rinfo->vSync_width = (readw(tmp0+28) & 0xf800) >> 11;
1097 rinfo->clock = readw(tmp0+9);
1098
1099 rinfo->got_dfpinfo = 1;
1100 return 1;
1101 }
1102 }
1103
1104 return 0;
1105 }
1106
1107
1108
1109 static int radeon_get_dfpinfo (struct radeonfb_info *rinfo)
1110 {
1111 unsigned int tmp;
1112 unsigned short a, b;
1113
1114 if (radeon_get_dfpinfo_BIOS(rinfo))
1115 radeon_update_default_var(rinfo);
1116
1117 if (radeon_dfp_parse_EDID(rinfo))
1118 radeon_update_default_var(rinfo);
1119
1120 if (!rinfo->got_dfpinfo) {
1121 /*
1122 * it seems all else has failed now and we
1123 * resort to probing registers for our DFP info
1124 */
1125 if (panel_yres) {
1126 rinfo->panel_yres = panel_yres;
1127 } else {
1128 tmp = INREG(FP_VERT_STRETCH);
1129 tmp &= 0x00fff000;
1130 rinfo->panel_yres = (unsigned short)(tmp >> 0x0c) + 1;
1131 }
1132
1133 switch (rinfo->panel_yres) {
1134 case 480:
1135 rinfo->panel_xres = 640;
1136 break;
1137 case 600:
1138 rinfo->panel_xres = 800;
1139 break;
1140 case 768:
1141 #if defined(__powerpc__)
1142 if (rinfo->dviDisp_type == MT_LCD)
1143 rinfo->panel_xres = 1152;
1144 else
1145 #endif
1146 rinfo->panel_xres = 1024;
1147 break;
1148 case 1024:
1149 rinfo->panel_xres = 1280;
1150 break;
1151 case 1050:
1152 rinfo->panel_xres = 1400;
1153 break;
1154 case 1200:
1155 rinfo->panel_xres = 1600;
1156 break;
1157 default:
1158 printk("radeonfb: Failed to detect DFP panel size\n");
1159 return 0;
1160 }
1161
1162 printk("radeonfb: detected DFP panel size from registers: %dx%d\n",
1163 rinfo->panel_xres, rinfo->panel_yres);
1164
1165 tmp = INREG(FP_CRTC_H_TOTAL_DISP);
1166 a = (tmp & FP_CRTC_H_TOTAL_MASK) + 4;
1167 b = (tmp & 0x01ff0000) >> FP_CRTC_H_DISP_SHIFT;
1168 rinfo->hblank = (a - b + 1) * 8;
1169
1170 tmp = INREG(FP_H_SYNC_STRT_WID);
1171 rinfo->hOver_plus = (unsigned short) ((tmp & FP_H_SYNC_STRT_CHAR_MASK) >>
1172 FP_H_SYNC_STRT_CHAR_SHIFT) - b - 1;
1173 rinfo->hOver_plus *= 8;
1174 rinfo->hSync_width = (unsigned short) ((tmp & FP_H_SYNC_WID_MASK) >>
1175 FP_H_SYNC_WID_SHIFT);
1176 rinfo->hSync_width *= 8;
1177 tmp = INREG(FP_CRTC_V_TOTAL_DISP);
1178 a = (tmp & FP_CRTC_V_TOTAL_MASK) + 1;
1179 b = (tmp & FP_CRTC_V_DISP_MASK) >> FP_CRTC_V_DISP_SHIFT;
1180 rinfo->vblank = a - b /* + 24 */ ;
1181
1182 tmp = INREG(FP_V_SYNC_STRT_WID);
1183 rinfo->vOver_plus = (unsigned short) (tmp & FP_V_SYNC_STRT_MASK)
1184 - b + 1;
1185 rinfo->vSync_width = (unsigned short) ((tmp & FP_V_SYNC_WID_MASK) >>
1186 FP_V_SYNC_WID_SHIFT);
1187
1188 return 1;
1189 }
1190
1191 return 1;
1192 }
1193
1194
1195 #ifdef CONFIG_PPC_OF
1196 static int radeon_read_OF (struct radeonfb_info *rinfo)
1197 {
1198 struct device_node *dp;
1199 unsigned int *xtal;
1200
1201 dp = pci_device_to_OF_node(rinfo->pdev);
1202
1203 xtal = (unsigned int *) get_property(dp, "ATY,RefCLK", NULL);
1204
1205 rinfo->pll.ref_clk = *xtal / 10;
1206
1207 if (*xtal)
1208 return 1;
1209 else
1210 return 0;
1211 }
1212 #endif
1213
1214
1215 static void radeon_engine_init (struct radeonfb_info *rinfo)
1216 {
1217 u32 temp;
1218
1219 /* disable 3D engine */
1220 OUTREG(RB3D_CNTL, 0);
1221
1222 radeon_engine_reset ();
1223
1224 radeon_fifo_wait (1);
1225 OUTREG(RB2D_DSTCACHE_MODE, 0);
1226
1227 radeon_fifo_wait (1);
1228 temp = INREG(DEFAULT_PITCH_OFFSET);
1229 OUTREG(DEFAULT_PITCH_OFFSET, ((temp & 0xc0000000) |
1230 (rinfo->pitch << 0x16)));
1231
1232 radeon_fifo_wait (1);
1233 OUTREGP(DP_DATATYPE, 0, ~HOST_BIG_ENDIAN_EN);
1234
1235 radeon_fifo_wait (1);
1236 OUTREG(DEFAULT_SC_BOTTOM_RIGHT, (DEFAULT_SC_RIGHT_MAX |
1237 DEFAULT_SC_BOTTOM_MAX));
1238
1239 temp = radeon_get_dstbpp(rinfo->depth);
1240 rinfo->dp_gui_master_cntl = ((temp << 8) | GMC_CLR_CMP_CNTL_DIS);
1241 radeon_fifo_wait (1);
1242 OUTREG(DP_GUI_MASTER_CNTL, (rinfo->dp_gui_master_cntl |
1243 GMC_BRUSH_SOLID_COLOR |
1244 GMC_SRC_DATATYPE_COLOR));
1245
1246 radeon_fifo_wait (7);
1247
1248 /* clear line drawing regs */
1249 OUTREG(DST_LINE_START, 0);
1250 OUTREG(DST_LINE_END, 0);
1251
1252 /* set brush color regs */
1253 OUTREG(DP_BRUSH_FRGD_CLR, 0xffffffff);
1254 OUTREG(DP_BRUSH_BKGD_CLR, 0x00000000);
1255
1256 /* set source color regs */
1257 OUTREG(DP_SRC_FRGD_CLR, 0xffffffff);
1258 OUTREG(DP_SRC_BKGD_CLR, 0x00000000);
1259
1260 /* default write mask */
1261 OUTREG(DP_WRITE_MSK, 0xffffffff);
1262
1263 radeon_engine_idle ();
1264 }
1265
1266
1267 static int __devinit radeon_init_disp (struct radeonfb_info *rinfo)
1268 {
1269 struct fb_info *info = &rinfo->info;
1270 struct fb_var_screeninfo var;
1271
1272 var = radeonfb_default_var;
1273 if ((radeon_init_disp_var(rinfo, &var)) < 0)
1274 return -1;
1275
1276 rinfo->depth = var_to_depth(&var);
1277 rinfo->bpp = var.bits_per_pixel;
1278
1279 info->var = var;
1280 fb_alloc_cmap(&info->cmap, 256, 0);
1281
1282 var.activate = FB_ACTIVATE_NOW;
1283 return 0;
1284 }
1285
1286
1287 static int radeon_init_disp_var (struct radeonfb_info *rinfo,
1288 struct fb_var_screeninfo *var)
1289 {
1290 #ifndef MODULE
1291 if (mode_option)
1292 fb_find_mode (var, &rinfo->info, mode_option,
1293 NULL, 0, NULL, 8);
1294 else
1295 #endif
1296 if (rinfo->use_default_var)
1297 /* We will use the modified default far */
1298 *var = radeonfb_default_var;
1299 else
1300
1301 fb_find_mode (var, &rinfo->info, "640x480-8@60",
1302 NULL, 0, NULL, 0);
1303
1304 if (noaccel)
1305 var->accel_flags &= ~FB_ACCELF_TEXT;
1306 else
1307 var->accel_flags |= FB_ACCELF_TEXT;
1308
1309 return 0;
1310 }
1311
1312
1313 static int radeon_do_maximize(struct radeonfb_info *rinfo,
1314 struct fb_var_screeninfo *var,
1315 struct fb_var_screeninfo *v,
1316 int nom, int den)
1317 {
1318 static struct {
1319 int xres, yres;
1320 } modes[] = {
1321 {1600, 1280},
1322 {1280, 1024},
1323 {1024, 768},
1324 {800, 600},
1325 {640, 480},
1326 {-1, -1}
1327 };
1328 int i;
1329
1330 /* use highest possible virtual resolution */
1331 if (v->xres_virtual == -1 && v->yres_virtual == -1) {
1332 printk("radeonfb: using max available virtual resolution\n");
1333 for (i=0; modes[i].xres != -1; i++) {
1334 if (modes[i].xres * nom / den * modes[i].yres <
1335 rinfo->video_ram / 2)
1336 break;
1337 }
1338 if (modes[i].xres == -1) {
1339 printk("radeonfb: could not find virtual resolution that fits into video memory!\n");
1340 return -EINVAL;
1341 }
1342 v->xres_virtual = modes[i].xres;
1343 v->yres_virtual = modes[i].yres;
1344
1345 printk("radeonfb: virtual resolution set to max of %dx%d\n",
1346 v->xres_virtual, v->yres_virtual);
1347 } else if (v->xres_virtual == -1) {
1348 v->xres_virtual = (rinfo->video_ram * den /
1349 (nom * v->yres_virtual * 2)) & ~15;
1350 } else if (v->yres_virtual == -1) {
1351 v->xres_virtual = (v->xres_virtual + 15) & ~15;
1352 v->yres_virtual = rinfo->video_ram * den /
1353 (nom * v->xres_virtual *2);
1354 } else {
1355 if (v->xres_virtual * nom / den * v->yres_virtual >
1356 rinfo->video_ram) {
1357 return -EINVAL;
1358 }
1359 }
1360
1361 if (v->xres_virtual * nom / den >= 8192) {
1362 v->xres_virtual = 8192 * den / nom - 16;
1363 }
1364
1365 if (v->xres_virtual < v->xres)
1366 return -EINVAL;
1367
1368 if (v->yres_virtual < v->yres)
1369 return -EINVAL;
1370
1371 return 0;
1372 }
1373
1374
1375 static int radeonfb_check_var (struct fb_var_screeninfo *var, struct fb_info *info)
1376 {
1377 struct radeonfb_info *rinfo = (struct radeonfb_info *) info->par;
1378 struct fb_var_screeninfo v;
1379 int nom, den;
1380
1381 memcpy (&v, var, sizeof (v));
1382
1383 switch (v.bits_per_pixel) {
1384 case 0 ... 8:
1385 v.bits_per_pixel = 8;
1386 break;
1387 case 9 ... 16:
1388 v.bits_per_pixel = 16;
1389 break;
1390 case 17 ... 24:
1391 #if 0 /* Doesn't seem to work */
1392 v.bits_per_pixel = 24;
1393 break;
1394 #endif
1395 return -EINVAL;
1396 case 25 ... 32:
1397 v.bits_per_pixel = 32;
1398 break;
1399 default:
1400 return -EINVAL;
1401 }
1402
1403 switch (var_to_depth(&v)) {
1404 case 8:
1405 nom = den = 1;
1406 v.red.offset = v.green.offset = v.blue.offset = 0;
1407 v.red.length = v.green.length = v.blue.length = 8;
1408 v.transp.offset = v.transp.length = 0;
1409 break;
1410 case 15:
1411 nom = 2;
1412 den = 1;
1413 v.red.offset = 10;
1414 v.green.offset = 5;
1415 v.blue.offset = 0;
1416 v.red.length = v.green.length = v.blue.length = 5;
1417 v.transp.offset = v.transp.length = 0;
1418 break;
1419 case 16:
1420 nom = 2;
1421 den = 1;
1422 v.red.offset = 11;
1423 v.green.offset = 5;
1424 v.blue.offset = 0;
1425 v.red.length = 5;
1426 v.green.length = 6;
1427 v.blue.length = 5;
1428 v.transp.offset = v.transp.length = 0;
1429 break;
1430 case 24:
1431 nom = 4;
1432 den = 1;
1433 v.red.offset = 16;
1434 v.green.offset = 8;
1435 v.blue.offset = 0;
1436 v.red.length = v.blue.length = v.green.length = 8;
1437 v.transp.offset = v.transp.length = 0;
1438 break;
1439 case 32:
1440 nom = 4;
1441 den = 1;
1442 v.red.offset = 16;
1443 v.green.offset = 8;
1444 v.blue.offset = 0;
1445 v.red.length = v.blue.length = v.green.length = 8;
1446 v.transp.offset = 24;
1447 v.transp.length = 8;
1448 break;
1449 default:
1450 printk ("radeonfb: mode %dx%dx%d rejected, color depth invalid\n",
1451 var->xres, var->yres, var->bits_per_pixel);
1452 return -EINVAL;
1453 }
1454
1455 if (radeon_do_maximize(rinfo, var, &v, nom, den) < 0)
1456 return -EINVAL;
1457
1458 if (v.xoffset < 0)
1459 v.xoffset = 0;
1460 if (v.yoffset < 0)
1461 v.yoffset = 0;
1462
1463 if (v.xoffset > v.xres_virtual - v.xres)
1464 v.xoffset = v.xres_virtual - v.xres - 1;
1465
1466 if (v.yoffset > v.yres_virtual - v.yres)
1467 v.yoffset = v.yres_virtual - v.yres - 1;
1468
1469 v.red.msb_right = v.green.msb_right = v.blue.msb_right =
1470 v.transp.offset = v.transp.length =
1471 v.transp.msb_right = 0;
1472
1473 if (noaccel)
1474 v.accel_flags = 0;
1475
1476 memcpy(var, &v, sizeof(v));
1477
1478 return 0;
1479 }
1480
1481
1482 static int radeonfb_pan_display (struct fb_var_screeninfo *var,
1483 struct fb_info *info)
1484 {
1485 struct radeonfb_info *rinfo = (struct radeonfb_info *) info;
1486
1487 if ((var->xoffset + var->xres > var->xres_virtual)
1488 || (var->yoffset + var->yres > var->yres_virtual))
1489 return -EINVAL;
1490
1491 if (rinfo->asleep)
1492 return 0;
1493
1494 OUTREG(CRTC_OFFSET, ((var->yoffset * var->xres_virtual + var->xoffset)
1495 * var->bits_per_pixel / 8) & ~7);
1496 return 0;
1497 }
1498
1499
1500 static int radeonfb_ioctl (struct inode *inode, struct file *file, unsigned int cmd,
1501 unsigned long arg, struct fb_info *info)
1502 {
1503 struct radeonfb_info *rinfo = (struct radeonfb_info *) info;
1504 unsigned int tmp;
1505 u32 value = 0;
1506 int rc;
1507
1508 switch (cmd) {
1509 /*
1510 * TODO: set mirror accordingly for non-Mobility chipsets with 2 CRTC's
1511 */
1512 case FBIO_RADEON_SET_MIRROR:
1513 switch (rinfo->arch) {
1514 case RADEON_R100:
1515 case RADEON_RV100:
1516 case RADEON_R200:
1517 case RADEON_RV200:
1518 case RADEON_RV250:
1519 case RADEON_R300:
1520 return -EINVAL;
1521 default:
1522 /* RADEON M6, RADEON_M7, RADEON_M9 */
1523 break;
1524 }
1525
1526 rc = get_user(value, (__u32 __user *)arg);
1527
1528 if (rc)
1529 return rc;
1530
1531 if (value & 0x01) {
1532 tmp = INREG(LVDS_GEN_CNTL);
1533
1534 tmp |= (LVDS_ON | LVDS_BLON);
1535 } else {
1536 tmp = INREG(LVDS_GEN_CNTL);
1537
1538 tmp &= ~(LVDS_ON | LVDS_BLON);
1539 }
1540
1541 OUTREG(LVDS_GEN_CNTL, tmp);
1542
1543 if (value & 0x02) {
1544 tmp = INREG(CRTC_EXT_CNTL);
1545 tmp |= CRTC_CRT_ON;
1546
1547 mirror = 1;
1548 } else {
1549 tmp = INREG(CRTC_EXT_CNTL);
1550 tmp &= ~CRTC_CRT_ON;
1551
1552 mirror = 0;
1553 }
1554
1555 OUTREG(CRTC_EXT_CNTL, tmp);
1556
1557 break;
1558 case FBIO_RADEON_GET_MIRROR:
1559 switch (rinfo->arch) {
1560 case RADEON_R100:
1561 case RADEON_RV100:
1562 case RADEON_R200:
1563 case RADEON_RV200:
1564 case RADEON_RV250:
1565 case RADEON_R300:
1566 return -EINVAL;
1567 default:
1568 /* RADEON M6, RADEON_M7, RADEON_M9 */
1569 break;
1570 }
1571
1572 tmp = INREG(LVDS_GEN_CNTL);
1573 if ((LVDS_ON | LVDS_BLON) & tmp)
1574 value |= 0x01;
1575
1576 tmp = INREG(CRTC_EXT_CNTL);
1577 if (CRTC_CRT_ON & tmp)
1578 value |= 0x02;
1579
1580 return put_user(value, (__u32 __user *)arg);
1581 default:
1582 return -EINVAL;
1583 }
1584
1585 return -EINVAL;
1586 }
1587
1588
1589 static int radeonfb_blank (int blank, struct fb_info *info)
1590 {
1591 struct radeonfb_info *rinfo = (struct radeonfb_info *) info;
1592 u32 val = INREG(CRTC_EXT_CNTL);
1593 u32 val2 = INREG(LVDS_GEN_CNTL);
1594
1595 if (rinfo->asleep)
1596 return 0;
1597
1598 #ifdef CONFIG_PMAC_BACKLIGHT
1599 if (rinfo->dviDisp_type == MT_LCD && _machine == _MACH_Pmac) {
1600 set_backlight_enable(!blank);
1601 return 0;
1602 }
1603 #endif
1604
1605 /* reset it */
1606 val &= ~(CRTC_DISPLAY_DIS | CRTC_HSYNC_DIS |
1607 CRTC_VSYNC_DIS);
1608 val2 &= ~(LVDS_DISPLAY_DIS);
1609
1610 switch (blank) {
1611 case FB_BLANK_UNBLANK:
1612 case FB_BLANK_NORMAL:
1613 break;
1614 case FB_BLANK_VSYNC_SUSPEND:
1615 val |= (CRTC_DISPLAY_DIS | CRTC_VSYNC_DIS);
1616 break;
1617 case FB_BLANK_HSYNC_SUSPEND:
1618 val |= (CRTC_DISPLAY_DIS | CRTC_HSYNC_DIS);
1619 break;
1620 case FB_BLANK_POWERDOWN:
1621 val |= (CRTC_DISPLAY_DIS | CRTC_VSYNC_DIS |
1622 CRTC_HSYNC_DIS);
1623 val2 |= (LVDS_DISPLAY_DIS);
1624 break;
1625 }
1626
1627 switch (rinfo->dviDisp_type) {
1628 case MT_LCD:
1629 OUTREG(LVDS_GEN_CNTL, val2);
1630 break;
1631 case MT_CRT:
1632 default:
1633 OUTREG(CRTC_EXT_CNTL, val);
1634 break;
1635 }
1636
1637 /* let fbcon do a soft blank for us */
1638 return (blank == FB_BLANK_NORMAL) ? 1 : 0;
1639 }
1640
1641
1642 static int radeonfb_setcolreg (unsigned regno, unsigned red, unsigned green,
1643 unsigned blue, unsigned transp, struct fb_info *info)
1644 {
1645 struct radeonfb_info *rinfo = (struct radeonfb_info *) info;
1646 u32 pindex, vclk_cntl;
1647 unsigned int i;
1648
1649 if (regno > 255)
1650 return 1;
1651
1652 red >>= 8;
1653 green >>= 8;
1654 blue >>= 8;
1655 rinfo->palette[regno].red = red;
1656 rinfo->palette[regno].green = green;
1657 rinfo->palette[regno].blue = blue;
1658
1659 /* default */
1660 pindex = regno;
1661
1662 if (!rinfo->asleep) {
1663 vclk_cntl = INPLL(VCLK_ECP_CNTL);
1664 OUTPLL(VCLK_ECP_CNTL, vclk_cntl & ~PIXCLK_DAC_ALWAYS_ONb);
1665
1666 if (rinfo->bpp == 16) {
1667 pindex = regno * 8;
1668
1669 if (rinfo->depth == 16 && regno > 63)
1670 return 1;
1671 if (rinfo->depth == 15 && regno > 31)
1672 return 1;
1673
1674 /* For 565, the green component is mixed one order below */
1675 if (rinfo->depth == 16) {
1676 OUTREG(PALETTE_INDEX, pindex>>1);
1677 OUTREG(PALETTE_DATA, (rinfo->palette[regno>>1].red << 16) |
1678 (green << 8) | (rinfo->palette[regno>>1].blue));
1679 green = rinfo->palette[regno<<1].green;
1680 }
1681 }
1682
1683 if (rinfo->depth != 16 || regno < 32) {
1684 OUTREG(PALETTE_INDEX, pindex);
1685 OUTREG(PALETTE_DATA, (red << 16) | (green << 8) | blue);
1686 }
1687
1688 OUTPLL(VCLK_ECP_CNTL, vclk_cntl);
1689 }
1690 if (regno < 16) {
1691 switch (rinfo->depth) {
1692 case 15:
1693 ((u16 *) (info->pseudo_palette))[regno] =
1694 (regno << 10) | (regno << 5) | regno;
1695 break;
1696 case 16:
1697 ((u16 *) (info->pseudo_palette))[regno] =
1698 (regno << 11) | (regno << 6) | regno;
1699 break;
1700 case 24:
1701 ((u32 *) (info->pseudo_palette))[regno] =
1702 (regno << 16) | (regno << 8) | regno;
1703 break;
1704 case 32:
1705 i = (regno << 8) | regno;
1706 ((u32 *) (info->pseudo_palette))[regno] =
1707 (i << 16) | i;
1708 break;
1709 }
1710 }
1711 return 0;
1712 }
1713
1714
1715
1716 static void radeon_save_state (struct radeonfb_info *rinfo,
1717 struct radeon_regs *save)
1718 {
1719 /* CRTC regs */
1720 save->crtc_gen_cntl = INREG(CRTC_GEN_CNTL);
1721 save->crtc_ext_cntl = INREG(CRTC_EXT_CNTL);
1722 save->dac_cntl = INREG(DAC_CNTL);
1723 save->crtc_h_total_disp = INREG(CRTC_H_TOTAL_DISP);
1724 save->crtc_h_sync_strt_wid = INREG(CRTC_H_SYNC_STRT_WID);
1725 save->crtc_v_total_disp = INREG(CRTC_V_TOTAL_DISP);
1726 save->crtc_v_sync_strt_wid = INREG(CRTC_V_SYNC_STRT_WID);
1727 save->crtc_pitch = INREG(CRTC_PITCH);
1728 #if defined(__BIG_ENDIAN)
1729 save->surface_cntl = INREG(SURFACE_CNTL);
1730 #endif
1731
1732 /* FP regs */
1733 save->fp_crtc_h_total_disp = INREG(FP_CRTC_H_TOTAL_DISP);
1734 save->fp_crtc_v_total_disp = INREG(FP_CRTC_V_TOTAL_DISP);
1735 save->fp_gen_cntl = INREG(FP_GEN_CNTL);
1736 save->fp_h_sync_strt_wid = INREG(FP_H_SYNC_STRT_WID);
1737 save->fp_horz_stretch = INREG(FP_HORZ_STRETCH);
1738 save->fp_v_sync_strt_wid = INREG(FP_V_SYNC_STRT_WID);
1739 save->fp_vert_stretch = INREG(FP_VERT_STRETCH);
1740 save->lvds_gen_cntl = INREG(LVDS_GEN_CNTL);
1741 save->lvds_pll_cntl = INREG(LVDS_PLL_CNTL);
1742 save->tmds_crc = INREG(TMDS_CRC);
1743 save->tmds_transmitter_cntl = INREG(TMDS_TRANSMITTER_CNTL);
1744 save->vclk_ecp_cntl = INPLL(VCLK_ECP_CNTL);
1745 }
1746
1747
1748
1749 static int radeonfb_set_par (struct fb_info *info)
1750 {
1751 struct radeonfb_info *rinfo = (struct radeonfb_info *)info->par;
1752 struct fb_var_screeninfo *mode = &info->var;
1753 struct radeon_regs newmode;
1754 int hTotal, vTotal, hSyncStart, hSyncEnd,
1755 hSyncPol, vSyncStart, vSyncEnd, vSyncPol, cSync;
1756 u8 hsync_adj_tab[] = {0, 0x12, 9, 9, 6, 5};
1757 u8 hsync_fudge_fp[] = {2, 2, 0, 0, 5, 5};
1758 u32 dotClock = 1000000000 / mode->pixclock,
1759 sync, h_sync_pol, v_sync_pol;
1760 int freq = dotClock / 10; /* x 100 */
1761 int xclk_freq, vclk_freq, xclk_per_trans, xclk_per_trans_precise;
1762 int useable_precision, roff, ron;
1763 int min_bits, format = 0;
1764 int hsync_start, hsync_fudge, bytpp, hsync_wid, vsync_wid;
1765 int primary_mon = PRIMARY_MONITOR(rinfo);
1766 int depth = var_to_depth(mode);
1767 int accel = (mode->accel_flags & FB_ACCELF_TEXT) != 0;
1768
1769 rinfo->xres = mode->xres;
1770 rinfo->yres = mode->yres;
1771 rinfo->xres_virtual = mode->xres_virtual;
1772 rinfo->yres_virtual = mode->yres_virtual;
1773 rinfo->pixclock = mode->pixclock;
1774
1775 hSyncStart = mode->xres + mode->right_margin;
1776 hSyncEnd = hSyncStart + mode->hsync_len;
1777 hTotal = hSyncEnd + mode->left_margin;
1778
1779 vSyncStart = mode->yres + mode->lower_margin;
1780 vSyncEnd = vSyncStart + mode->vsync_len;
1781 vTotal = vSyncEnd + mode->upper_margin;
1782
1783 if ((primary_mon == MT_DFP) || (primary_mon == MT_LCD)) {
1784 if (rinfo->panel_xres < mode->xres)
1785 rinfo->xres = mode->xres = rinfo->panel_xres;
1786 if (rinfo->panel_yres < mode->yres)
1787 rinfo->yres = mode->yres = rinfo->panel_yres;
1788
1789 hTotal = mode->xres + rinfo->hblank;
1790 hSyncStart = mode->xres + rinfo->hOver_plus;
1791 hSyncEnd = hSyncStart + rinfo->hSync_width;
1792
1793 vTotal = mode->yres + rinfo->vblank;
1794 vSyncStart = mode->yres + rinfo->vOver_plus;
1795 vSyncEnd = vSyncStart + rinfo->vSync_width;
1796 }
1797
1798 sync = mode->sync;
1799 h_sync_pol = sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1;
1800 v_sync_pol = sync & FB_SYNC_VERT_HIGH_ACT ? 0 : 1;
1801
1802 RTRACE("hStart = %d, hEnd = %d, hTotal = %d\n",
1803 hSyncStart, hSyncEnd, hTotal);
1804 RTRACE("vStart = %d, vEnd = %d, vTotal = %d\n",
1805 vSyncStart, vSyncEnd, vTotal);
1806
1807 hsync_wid = (hSyncEnd - hSyncStart) / 8;
1808 vsync_wid = vSyncEnd - vSyncStart;
1809 if (hsync_wid == 0)
1810 hsync_wid = 1;
1811 else if (hsync_wid > 0x3f) /* max */
1812 hsync_wid = 0x3f;
1813
1814 if (vsync_wid == 0)
1815 vsync_wid = 1;
1816 else if (vsync_wid > 0x1f) /* max */
1817 vsync_wid = 0x1f;
1818
1819 hSyncPol = mode->sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1;
1820 vSyncPol = mode->sync & FB_SYNC_VERT_HIGH_ACT ? 0 : 1;
1821
1822 cSync = mode->sync & FB_SYNC_COMP_HIGH_ACT ? (1 << 4) : 0;
1823
1824 format = radeon_get_dstbpp(depth);
1825 bytpp = mode->bits_per_pixel >> 3;
1826
1827 if ((primary_mon == MT_DFP) || (primary_mon == MT_LCD))
1828 hsync_fudge = hsync_fudge_fp[format-1];
1829 else
1830 hsync_fudge = hsync_adj_tab[format-1];
1831
1832 hsync_start = hSyncStart - 8 + hsync_fudge;
1833
1834 newmode.crtc_gen_cntl = CRTC_EXT_DISP_EN | CRTC_EN |
1835 (format << 8);
1836
1837 if ((primary_mon == MT_DFP) || (primary_mon == MT_LCD)) {
1838 newmode.crtc_ext_cntl = VGA_ATI_LINEAR | XCRT_CNT_EN;
1839 if (mirror)
1840 newmode.crtc_ext_cntl |= CRTC_CRT_ON;
1841
1842 newmode.crtc_gen_cntl &= ~(CRTC_DBL_SCAN_EN |
1843 CRTC_INTERLACE_EN);
1844 } else {
1845 newmode.crtc_ext_cntl = VGA_ATI_LINEAR | XCRT_CNT_EN |
1846 CRTC_CRT_ON;
1847 }
1848
1849 newmode.dac_cntl = /* INREG(DAC_CNTL) | */ DAC_MASK_ALL | DAC_VGA_ADR_EN |
1850 DAC_8BIT_EN;
1851
1852 newmode.crtc_h_total_disp = ((((hTotal / 8) - 1) & 0x3ff) |
1853 (((mode->xres / 8) - 1) << 16));
1854
1855 newmode.crtc_h_sync_strt_wid = ((hsync_start & 0x1fff) |
1856 (hsync_wid << 16) | (h_sync_pol << 23));
1857
1858 newmode.crtc_v_total_disp = ((vTotal - 1) & 0xffff) |
1859 ((mode->yres - 1) << 16);
1860
1861 newmode.crtc_v_sync_strt_wid = (((vSyncStart - 1) & 0xfff) |
1862 (vsync_wid << 16) | (v_sync_pol << 23));
1863
1864 if (accel) {
1865 /* We first calculate the engine pitch */
1866 rinfo->pitch = ((mode->xres_virtual * ((mode->bits_per_pixel + 1) / 8) + 0x3f)
1867 & ~(0x3f)) >> 6;
1868
1869 /* Then, re-multiply it to get the CRTC pitch */
1870 newmode.crtc_pitch = (rinfo->pitch << 3) / ((mode->bits_per_pixel + 1) / 8);
1871 } else
1872 newmode.crtc_pitch = (mode->xres_virtual >> 3);
1873 newmode.crtc_pitch |= (newmode.crtc_pitch << 16);
1874
1875 #if defined(__BIG_ENDIAN)
1876 /*
1877 * It looks like recent chips have a problem with SURFACE_CNTL,
1878 * setting SURF_TRANSLATION_DIS completely disables the
1879 * swapper as well, so we leave it unset now.
1880 */
1881 newmode.surface_cntl = 0;
1882
1883 /* Setup swapping on both apertures, though we currently
1884 * only use aperture 0, enabling swapper on aperture 1
1885 * won't harm
1886 */
1887 switch (mode->bits_per_pixel) {
1888 case 16:
1889 newmode.surface_cntl |= NONSURF_AP0_SWP_16BPP;
1890 newmode.surface_cntl |= NONSURF_AP1_SWP_16BPP;
1891 break;
1892 case 24:
1893 case 32:
1894 newmode.surface_cntl |= NONSURF_AP0_SWP_32BPP;
1895 newmode.surface_cntl |= NONSURF_AP1_SWP_32BPP;
1896 break;
1897 }
1898 #endif
1899
1900 rinfo->pitch = ((mode->xres_virtual * ((mode->bits_per_pixel + 1) / 8) + 0x3f)
1901 & ~(0x3f)) / 64;
1902
1903 RTRACE("h_total_disp = 0x%x\t hsync_strt_wid = 0x%x\n",
1904 newmode.crtc_h_total_disp, newmode.crtc_h_sync_strt_wid);
1905 RTRACE("v_total_disp = 0x%x\t vsync_strt_wid = 0x%x\n",
1906 newmode.crtc_v_total_disp, newmode.crtc_v_sync_strt_wid);
1907
1908 newmode.xres = mode->xres;
1909 newmode.yres = mode->yres;
1910
1911 rinfo->bpp = mode->bits_per_pixel;
1912 rinfo->depth = depth;
1913
1914 if (freq > rinfo->pll.ppll_max)
1915 freq = rinfo->pll.ppll_max;
1916 if (freq*12 < rinfo->pll.ppll_min)
1917 freq = rinfo->pll.ppll_min / 12;
1918
1919 {
1920 struct {
1921 int divider;
1922 int bitvalue;
1923 } *post_div,
1924 post_divs[] = {
1925 { 1, 0 },
1926 { 2, 1 },
1927 { 4, 2 },
1928 { 8, 3 },
1929 { 3, 4 },
1930 { 16, 5 },
1931 { 6, 6 },
1932 { 12, 7 },
1933 { 0, 0 },
1934 };
1935
1936 for (post_div = &post_divs[0]; post_div->divider; ++post_div) {
1937 rinfo->pll_output_freq = post_div->divider * freq;
1938 if (rinfo->pll_output_freq >= rinfo->pll.ppll_min &&
1939 rinfo->pll_output_freq <= rinfo->pll.ppll_max)
1940 break;
1941 }
1942
1943 rinfo->post_div = post_div->divider;
1944 rinfo->fb_div = round_div(rinfo->pll.ref_div*rinfo->pll_output_freq,
1945 rinfo->pll.ref_clk);
1946 newmode.ppll_ref_div = rinfo->pll.ref_div;
1947 newmode.ppll_div_3 = rinfo->fb_div | (post_div->bitvalue << 16);
1948 }
1949 newmode.vclk_ecp_cntl = rinfo->init_state.vclk_ecp_cntl;
1950
1951 #ifdef CONFIG_PPC_OF
1952 /* Gross hack for iBook with M7 until I find out a proper fix */
1953 if (machine_is_compatible("PowerBook4,3") && rinfo->arch == RADEON_M7)
1954 newmode.ppll_div_3 = 0x000600ad;
1955 #endif /* CONFIG_PPC_OF */
1956
1957 RTRACE("post div = 0x%x\n", rinfo->post_div);
1958 RTRACE("fb_div = 0x%x\n", rinfo->fb_div);
1959 RTRACE("ppll_div_3 = 0x%x\n", newmode.ppll_div_3);
1960
1961 /* DDA */
1962 vclk_freq = round_div(rinfo->pll.ref_clk * rinfo->fb_div,
1963 rinfo->pll.ref_div * rinfo->post_div);
1964 xclk_freq = rinfo->pll.xclk;
1965
1966 xclk_per_trans = round_div(xclk_freq * 128, vclk_freq * mode->bits_per_pixel);
1967
1968 min_bits = min_bits_req(xclk_per_trans);
1969 useable_precision = min_bits + 1;
1970
1971 xclk_per_trans_precise = round_div((xclk_freq * 128) << (11 - useable_precision),
1972 vclk_freq * mode->bits_per_pixel);
1973
1974 ron = (4 * rinfo->ram.mb + 3 * _max(rinfo->ram.trcd - 2, 0) +
1975 2 * rinfo->ram.trp + rinfo->ram.twr + rinfo->ram.cl + rinfo->ram.tr2w +
1976 xclk_per_trans) << (11 - useable_precision);
1977 roff = xclk_per_trans_precise * (32 - 4);
1978
1979 RTRACE("ron = %d, roff = %d\n", ron, roff);
1980 RTRACE("vclk_freq = %d, per = %d\n", vclk_freq, xclk_per_trans_precise);
1981
1982 if ((ron + rinfo->ram.rloop) >= roff) {
1983 printk("radeonfb: error ron out of range\n");
1984 return -EINVAL;
1985 }
1986
1987 newmode.dda_config = (xclk_per_trans_precise |
1988 (useable_precision << 16) |
1989 (rinfo->ram.rloop << 20));
1990 newmode.dda_on_off = (ron << 16) | roff;
1991
1992 if ((primary_mon == MT_DFP) || (primary_mon == MT_LCD)) {
1993 unsigned int hRatio, vRatio;
1994
1995 /* We force the pixel clock to be always enabled. Allowing it
1996 * to be power managed during blanking would save power, but has
1997 * nasty interactions with the 2D engine & sleep code that haven't
1998 * been solved yet. --BenH
1999 */
2000 newmode.vclk_ecp_cntl &= ~PIXCLK_DAC_ALWAYS_ONb;
2001
2002 if (mode->xres > rinfo->panel_xres)
2003 mode->xres = rinfo->panel_xres;
2004 if (mode->yres > rinfo->panel_yres)
2005 mode->yres = rinfo->panel_yres;
2006
2007 newmode.fp_horz_stretch = (((rinfo->panel_xres / 8) - 1)
2008 << HORZ_PANEL_SHIFT);
2009 newmode.fp_vert_stretch = ((rinfo->panel_yres - 1)
2010 << VERT_PANEL_SHIFT);
2011
2012 if (mode->xres != rinfo->panel_xres) {
2013 hRatio = round_div(mode->xres * HORZ_STRETCH_RATIO_MAX,
2014 rinfo->panel_xres);
2015 newmode.fp_horz_stretch = (((((unsigned long)hRatio) & HORZ_STRETCH_RATIO_MASK)) |
2016 (newmode.fp_horz_stretch &
2017 (HORZ_PANEL_SIZE | HORZ_FP_LOOP_STRETCH |
2018 HORZ_AUTO_RATIO_INC)));
2019 newmode.fp_horz_stretch |= (HORZ_STRETCH_BLEND |
2020 HORZ_STRETCH_ENABLE);
2021 }
2022 newmode.fp_horz_stretch &= ~HORZ_AUTO_RATIO;
2023
2024 if (mode->yres != rinfo->panel_yres) {
2025 vRatio = round_div(mode->yres * VERT_STRETCH_RATIO_MAX,
2026 rinfo->panel_yres);
2027 newmode.fp_vert_stretch = (((((unsigned long)vRatio) & VERT_STRETCH_RATIO_MASK)) |
2028 (newmode.fp_vert_stretch &
2029 (VERT_PANEL_SIZE | VERT_STRETCH_RESERVED)));
2030 newmode.fp_vert_stretch |= (VERT_STRETCH_BLEND |
2031 VERT_STRETCH_ENABLE);
2032 }
2033 newmode.fp_vert_stretch &= ~VERT_AUTO_RATIO_EN;
2034
2035 newmode.fp_gen_cntl = (rinfo->init_state.fp_gen_cntl & (u32)
2036 ~(FP_SEL_CRTC2 |
2037 FP_RMX_HVSYNC_CONTROL_EN |
2038 FP_DFP_SYNC_SEL |
2039 FP_CRT_SYNC_SEL |
2040 FP_CRTC_LOCK_8DOT |
2041 FP_USE_SHADOW_EN |
2042 FP_CRTC_USE_SHADOW_VEND |
2043 FP_CRT_SYNC_ALT));
2044
2045 newmode.fp_gen_cntl |= (FP_CRTC_DONT_SHADOW_VPAR |
2046 FP_CRTC_DONT_SHADOW_HEND);
2047
2048 newmode.lvds_gen_cntl = rinfo->init_state.lvds_gen_cntl;
2049 newmode.lvds_pll_cntl = rinfo->init_state.lvds_pll_cntl;
2050 newmode.tmds_crc = rinfo->init_state.tmds_crc;
2051 newmode.tmds_transmitter_cntl = rinfo->init_state.tmds_transmitter_cntl;
2052
2053 if (primary_mon == MT_LCD) {
2054 newmode.lvds_gen_cntl |= (LVDS_ON | LVDS_BLON);
2055 newmode.fp_gen_cntl &= ~(FP_FPON | FP_TMDS_EN);
2056 } else {
2057 /* DFP */
2058 newmode.fp_gen_cntl |= (FP_FPON | FP_TMDS_EN);
2059 newmode.tmds_transmitter_cntl = (TMDS_RAN_PAT_RST |
2060 TMDS_ICHCSEL | TMDS_PLL_EN) &
2061 ~(TMDS_PLLRST);
2062 newmode.crtc_ext_cntl &= ~CRTC_CRT_ON;
2063 }
2064
2065 newmode.fp_crtc_h_total_disp = (((rinfo->hblank / 8) & 0x3ff) |
2066 (((mode->xres / 8) - 1) << 16));
2067 newmode.fp_crtc_v_total_disp = (rinfo->vblank & 0xffff) |
2068 ((mode->yres - 1) << 16);
2069 newmode.fp_h_sync_strt_wid = ((rinfo->hOver_plus & 0x1fff) |
2070 (hsync_wid << 16) | (h_sync_pol << 23));
2071 newmode.fp_v_sync_strt_wid = ((rinfo->vOver_plus & 0xfff) |
2072 (vsync_wid << 16) | (v_sync_pol << 23));
2073 }
2074
2075 /* do it! */
2076 if (!rinfo->asleep) {
2077 radeon_write_mode (rinfo, &newmode);
2078 /* (re)initialize the engine */
2079 if (noaccel)
2080 radeon_engine_init (rinfo);
2081
2082 }
2083 /* Update fix */
2084 if (accel)
2085 info->fix.line_length = rinfo->pitch*64;
2086 else
2087 info->fix.line_length = mode->xres_virtual * ((mode->bits_per_pixel + 1) / 8);
2088 info->fix.visual = rinfo->depth == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
2089
2090 #ifdef CONFIG_BOOTX_TEXT
2091 /* Update debug text engine */
2092 btext_update_display(rinfo->fb_base_phys, mode->xres, mode->yres,
2093 rinfo->depth, info->fix.line_length);
2094 #endif
2095
2096 return 0;
2097 }
2098
2099
2100 static void radeon_write_mode (struct radeonfb_info *rinfo,
2101 struct radeon_regs *mode)
2102 {
2103 int i;
2104 int primary_mon = PRIMARY_MONITOR(rinfo);
2105
2106 radeonfb_blank(VESA_POWERDOWN, (struct fb_info *)rinfo);
2107
2108
2109 if (rinfo->arch == RADEON_M6) {
2110 for (i=0; i<7; i++)
2111 OUTREG(common_regs_m6[i].reg, common_regs_m6[i].val);
2112 } else {
2113 for (i=0; i<9; i++)
2114 OUTREG(common_regs[i].reg, common_regs[i].val);
2115 }
2116
2117 OUTREG(CRTC_GEN_CNTL, mode->crtc_gen_cntl);
2118 OUTREGP(CRTC_EXT_CNTL, mode->crtc_ext_cntl,
2119 CRTC_HSYNC_DIS | CRTC_VSYNC_DIS | CRTC_DISPLAY_DIS);
2120 OUTREGP(DAC_CNTL, mode->dac_cntl, DAC_RANGE_CNTL | DAC_BLANKING);
2121 OUTREG(CRTC_H_TOTAL_DISP, mode->crtc_h_total_disp);
2122 OUTREG(CRTC_H_SYNC_STRT_WID, mode->crtc_h_sync_strt_wid);
2123 OUTREG(CRTC_V_TOTAL_DISP, mode->crtc_v_total_disp);
2124 OUTREG(CRTC_V_SYNC_STRT_WID, mode->crtc_v_sync_strt_wid);
2125 OUTREG(CRTC_OFFSET, 0);
2126 OUTREG(CRTC_OFFSET_CNTL, 0);
2127 OUTREG(CRTC_PITCH, mode->crtc_pitch);
2128
2129 #if defined(__BIG_ENDIAN)
2130 OUTREG(SURFACE_CNTL, mode->surface_cntl);
2131 #endif
2132
2133 while ((INREG(CLOCK_CNTL_INDEX) & PPLL_DIV_SEL_MASK) !=
2134 PPLL_DIV_SEL_MASK) {
2135 OUTREGP(CLOCK_CNTL_INDEX, PPLL_DIV_SEL_MASK, 0xffff);
2136 }
2137
2138 OUTPLLP(PPLL_CNTL, PPLL_RESET, 0xffff);
2139
2140 while ((INPLL(PPLL_REF_DIV) & PPLL_REF_DIV_MASK) !=
2141 (mode->ppll_ref_div & PPLL_REF_DIV_MASK)) {
2142 OUTPLLP(PPLL_REF_DIV, mode->ppll_ref_div, ~PPLL_REF_DIV_MASK);
2143 }
2144
2145 while ((INPLL(PPLL_DIV_3) & PPLL_FB3_DIV_MASK) !=
2146 (mode->ppll_div_3 & PPLL_FB3_DIV_MASK)) {
2147 OUTPLLP(PPLL_DIV_3, mode->ppll_div_3, ~PPLL_FB3_DIV_MASK);
2148 }
2149
2150 while ((INPLL(PPLL_DIV_3) & PPLL_POST3_DIV_MASK) !=
2151 (mode->ppll_div_3 & PPLL_POST3_DIV_MASK)) {
2152 OUTPLLP(PPLL_DIV_3, mode->ppll_div_3, ~PPLL_POST3_DIV_MASK);
2153 }
2154
2155 OUTPLL(HTOTAL_CNTL, 0);
2156
2157 OUTPLLP(PPLL_CNTL, 0, ~PPLL_RESET);
2158
2159 // OUTREG(DDA_CONFIG, mode->dda_config);
2160 // OUTREG(DDA_ON_OFF, mode->dda_on_off);
2161
2162 if ((primary_mon == MT_DFP) || (primary_mon == MT_LCD)) {
2163 OUTREG(FP_CRTC_H_TOTAL_DISP, mode->fp_crtc_h_total_disp);
2164 OUTREG(FP_CRTC_V_TOTAL_DISP, mode->fp_crtc_v_total_disp);
2165 OUTREG(FP_H_SYNC_STRT_WID, mode->fp_h_sync_strt_wid);
2166 OUTREG(FP_V_SYNC_STRT_WID, mode->fp_v_sync_strt_wid);
2167 OUTREG(FP_HORZ_STRETCH, mode->fp_horz_stretch);
2168 OUTREG(FP_VERT_STRETCH, mode->fp_vert_stretch);
2169 OUTREG(FP_GEN_CNTL, mode->fp_gen_cntl);
2170 OUTREG(TMDS_CRC, mode->tmds_crc);
2171 OUTREG(TMDS_TRANSMITTER_CNTL, mode->tmds_transmitter_cntl);
2172
2173 if (primary_mon == MT_LCD) {
2174 unsigned int tmp = INREG(LVDS_GEN_CNTL);
2175
2176 mode->lvds_gen_cntl &= ~LVDS_STATE_MASK;
2177 mode->lvds_gen_cntl |= (rinfo->init_state.lvds_gen_cntl & LVDS_STATE_MASK);
2178
2179 if ((tmp & (LVDS_ON | LVDS_BLON)) ==
2180 (mode->lvds_gen_cntl & (LVDS_ON | LVDS_BLON))) {
2181 OUTREG(LVDS_GEN_CNTL, mode->lvds_gen_cntl);
2182 } else {
2183 if (mode->lvds_gen_cntl & (LVDS_ON | LVDS_BLON)) {
2184 udelay(1000);
2185 OUTREG(LVDS_GEN_CNTL, mode->lvds_gen_cntl);
2186 } else {
2187 OUTREG(LVDS_GEN_CNTL, mode->lvds_gen_cntl |
2188 LVDS_BLON);
2189 udelay(1000);
2190 OUTREG(LVDS_GEN_CNTL, mode->lvds_gen_cntl);
2191 }
2192 }
2193 }
2194 }
2195
2196 radeonfb_blank(VESA_NO_BLANKING, (struct fb_info *)rinfo);
2197
2198 OUTPLL(VCLK_ECP_CNTL, mode->vclk_ecp_cntl);
2199
2200 return;
2201 }
2202
2203 static struct fb_ops radeonfb_ops = {
2204 .owner = THIS_MODULE,
2205 .fb_check_var = radeonfb_check_var,
2206 .fb_set_par = radeonfb_set_par,
2207 .fb_setcolreg = radeonfb_setcolreg,
2208 .fb_pan_display = radeonfb_pan_display,
2209 .fb_blank = radeonfb_blank,
2210 .fb_ioctl = radeonfb_ioctl,
2211 #if 0
2212 .fb_fillrect = radeonfb_fillrect,
2213 .fb_copyarea = radeonfb_copyarea,
2214 .fb_imageblit = radeonfb_imageblit,
2215 .fb_rasterimg = radeonfb_rasterimg,
2216 #else
2217 .fb_fillrect = cfb_fillrect,
2218 .fb_copyarea = cfb_copyarea,
2219 .fb_imageblit = cfb_imageblit,
2220 #endif
2221 .fb_cursor = soft_cursor,
2222 };
2223
2224
2225 static int __devinit radeon_set_fbinfo (struct radeonfb_info *rinfo)
2226 {
2227 struct fb_info *info;
2228
2229 info = &rinfo->info;
2230
2231 info->par = rinfo;
2232 info->pseudo_palette = rinfo->pseudo_palette;
2233 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
2234 info->fbops = &radeonfb_ops;
2235 info->screen_base = rinfo->fb_base;
2236
2237 /* Fill fix common fields */
2238 strlcpy(info->fix.id, rinfo->name, sizeof(info->fix.id));
2239 info->fix.smem_start = rinfo->fb_base_phys;
2240 info->fix.smem_len = rinfo->video_ram;
2241 info->fix.type = FB_TYPE_PACKED_PIXELS;
2242 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
2243 info->fix.xpanstep = 8;
2244 info->fix.ypanstep = 1;
2245 info->fix.ywrapstep = 0;
2246 info->fix.type_aux = 0;
2247 info->fix.mmio_start = rinfo->mmio_base_phys;
2248 info->fix.mmio_len = RADEON_REGSIZE;
2249 if (noaccel)
2250 info->fix.accel = FB_ACCEL_NONE;
2251 else
2252 info->fix.accel = FB_ACCEL_ATI_RADEON;
2253
2254 if (radeon_init_disp (rinfo) < 0)
2255 return -1;
2256
2257 return 0;
2258 }
2259
2260
2261 #ifdef CONFIG_PMAC_BACKLIGHT
2262
2263 /* TODO: Dbl check these tables, we don't go up to full ON backlight
2264 * in these, possibly because we noticed MacOS doesn't, but I'd prefer
2265 * having some more official numbers from ATI
2266 */
2267 static int backlight_conv_m6[] = {
2268 0xff, 0xc0, 0xb5, 0xaa, 0x9f, 0x94, 0x89, 0x7e,
2269 0x73, 0x68, 0x5d, 0x52, 0x47, 0x3c, 0x31, 0x24
2270 };
2271 static int backlight_conv_m7[] = {
2272 0x00, 0x3f, 0x4a, 0x55, 0x60, 0x6b, 0x76, 0x81,
2273 0x8c, 0x97, 0xa2, 0xad, 0xb8, 0xc3, 0xce, 0xd9
2274 };
2275
2276 #define BACKLIGHT_LVDS_OFF
2277 #undef BACKLIGHT_DAC_OFF
2278
2279 /* We turn off the LCD completely instead of just dimming the backlight.
2280 * This provides some greater power saving and the display is useless
2281 * without backlight anyway.
2282 */
2283
2284 static int radeon_set_backlight_enable(int on, int level, void *data)
2285 {
2286 struct radeonfb_info *rinfo = (struct radeonfb_info *)data;
2287 unsigned int lvds_gen_cntl = INREG(LVDS_GEN_CNTL);
2288 int* conv_table;
2289
2290 /* Pardon me for that hack... maybe some day we can figure
2291 * out in what direction backlight should work on a given
2292 * panel ?
2293 */
2294 if ((rinfo->arch == RADEON_M7 || rinfo->arch == RADEON_M9)
2295 && !machine_is_compatible("PowerBook4,3"))
2296 conv_table = backlight_conv_m7;
2297 else
2298 conv_table = backlight_conv_m6;
2299
2300 lvds_gen_cntl |= (LVDS_BL_MOD_EN | LVDS_BLON);
2301 if (on && (level > BACKLIGHT_OFF)) {
2302 lvds_gen_cntl |= LVDS_DIGON;
2303 if (!(lvds_gen_cntl & LVDS_ON)) {
2304 lvds_gen_cntl &= ~LVDS_BLON;
2305 OUTREG(LVDS_GEN_CNTL, lvds_gen_cntl);
2306 (void)INREG(LVDS_GEN_CNTL);
2307 mdelay(10);
2308 lvds_gen_cntl |= LVDS_BLON;
2309 OUTREG(LVDS_GEN_CNTL, lvds_gen_cntl);
2310 }
2311 lvds_gen_cntl &= ~LVDS_BL_MOD_LEVEL_MASK;
2312 lvds_gen_cntl |= (conv_table[level] <<
2313 LVDS_BL_MOD_LEVEL_SHIFT);
2314 lvds_gen_cntl |= (LVDS_ON | LVDS_EN);
2315 lvds_gen_cntl &= ~LVDS_DISPLAY_DIS;
2316 } else {
2317 lvds_gen_cntl &= ~LVDS_BL_MOD_LEVEL_MASK;
2318 lvds_gen_cntl |= (conv_table[0] <<
2319 LVDS_BL_MOD_LEVEL_SHIFT);
2320 lvds_gen_cntl |= LVDS_DISPLAY_DIS;
2321 OUTREG(LVDS_GEN_CNTL, lvds_gen_cntl);
2322 udelay(10);
2323 lvds_gen_cntl &= ~(LVDS_ON | LVDS_EN | LVDS_BLON | LVDS_DIGON);
2324 }
2325
2326 OUTREG(LVDS_GEN_CNTL, lvds_gen_cntl);
2327 rinfo->init_state.lvds_gen_cntl &= ~LVDS_STATE_MASK;
2328 rinfo->init_state.lvds_gen_cntl |= (lvds_gen_cntl & LVDS_STATE_MASK);
2329
2330 return 0;
2331 }
2332
2333 static int radeon_set_backlight_level(int level, void *data)
2334 {
2335 return radeon_set_backlight_enable(1, level, data);
2336 }
2337 #endif /* CONFIG_PMAC_BACKLIGHT */
2338
2339
2340 #ifdef CONFIG_PMAC_PBOOK
2341
2342 static u32 dbg_clk;
2343
2344 /*
2345 * Radeon M6 Power Management code. This code currently only supports
2346 * the mobile chips, it's based from some informations provided by ATI
2347 * along with hours of tracing of MacOS drivers
2348 */
2349
2350 static void radeon_pm_save_regs(struct radeonfb_info *rinfo)
2351 {
2352 rinfo->save_regs[0] = INPLL(PLL_PWRMGT_CNTL);
2353 rinfo->save_regs[1] = INPLL(CLK_PWRMGT_CNTL);
2354 rinfo->save_regs[2] = INPLL(MCLK_CNTL);
2355 rinfo->save_regs[3] = INPLL(SCLK_CNTL);
2356 rinfo->save_regs[4] = INPLL(CLK_PIN_CNTL);
2357 rinfo->save_regs[5] = INPLL(VCLK_ECP_CNTL);
2358 rinfo->save_regs[6] = INPLL(PIXCLKS_CNTL);
2359 rinfo->save_regs[7] = INPLL(MCLK_MISC);
2360 rinfo->save_regs[8] = INPLL(P2PLL_CNTL);
2361
2362 rinfo->save_regs[9] = INREG(DISP_MISC_CNTL);
2363 rinfo->save_regs[10] = INREG(DISP_PWR_MAN);
2364 rinfo->save_regs[11] = INREG(LVDS_GEN_CNTL);
2365 rinfo->save_regs[12] = INREG(LVDS_PLL_CNTL);
2366 rinfo->save_regs[13] = INREG(TV_DAC_CNTL);
2367 rinfo->save_regs[14] = INREG(BUS_CNTL1);
2368 rinfo->save_regs[15] = INREG(CRTC_OFFSET_CNTL);
2369 rinfo->save_regs[16] = INREG(AGP_CNTL);
2370 rinfo->save_regs[17] = (INREG(CRTC_GEN_CNTL) & 0xfdffffff) | 0x04000000;
2371 rinfo->save_regs[18] = (INREG(CRTC2_GEN_CNTL) & 0xfdffffff) | 0x04000000;
2372 rinfo->save_regs[19] = INREG(GPIOPAD_A);
2373 rinfo->save_regs[20] = INREG(GPIOPAD_EN);
2374 rinfo->save_regs[21] = INREG(GPIOPAD_MASK);
2375 rinfo->save_regs[22] = INREG(ZV_LCDPAD_A);
2376 rinfo->save_regs[23] = INREG(ZV_LCDPAD_EN);
2377 rinfo->save_regs[24] = INREG(ZV_LCDPAD_MASK);
2378 rinfo->save_regs[25] = INREG(GPIO_VGA_DDC);
2379 rinfo->save_regs[26] = INREG(GPIO_DVI_DDC);
2380 rinfo->save_regs[27] = INREG(GPIO_MONID);
2381 rinfo->save_regs[28] = INREG(GPIO_CRT2_DDC);
2382
2383 rinfo->save_regs[29] = INREG(SURFACE_CNTL);
2384 rinfo->save_regs[30] = INREG(MC_FB_LOCATION);
2385 rinfo->save_regs[31] = INREG(DISPLAY_BASE_ADDR);
2386 rinfo->save_regs[32] = INREG(MC_AGP_LOCATION);
2387 rinfo->save_regs[33] = INREG(CRTC2_DISPLAY_BASE_ADDR);
2388 }
2389
2390 static void radeon_pm_restore_regs(struct radeonfb_info *rinfo)
2391 {
2392 OUTPLL(P2PLL_CNTL, rinfo->save_regs[8] & 0xFFFFFFFE); /* First */
2393
2394 OUTPLL(PLL_PWRMGT_CNTL, rinfo->save_regs[0]);
2395 OUTPLL(CLK_PWRMGT_CNTL, rinfo->save_regs[1]);
2396 OUTPLL(MCLK_CNTL, rinfo->save_regs[2]);
2397 OUTPLL(SCLK_CNTL, rinfo->save_regs[3]);
2398 OUTPLL(CLK_PIN_CNTL, rinfo->save_regs[4]);
2399 OUTPLL(VCLK_ECP_CNTL, rinfo->save_regs[5]);
2400 OUTPLL(PIXCLKS_CNTL, rinfo->save_regs[6]);
2401 OUTPLL(MCLK_MISC, rinfo->save_regs[7]);
2402
2403 OUTREG(DISP_MISC_CNTL, rinfo->save_regs[9]);
2404 OUTREG(DISP_PWR_MAN, rinfo->save_regs[10]);
2405 OUTREG(LVDS_GEN_CNTL, rinfo->save_regs[11]);
2406 OUTREG(LVDS_PLL_CNTL,rinfo->save_regs[12]);
2407 OUTREG(TV_DAC_CNTL, rinfo->save_regs[13]);
2408 OUTREG(BUS_CNTL1, rinfo->save_regs[14]);
2409 OUTREG(CRTC_OFFSET_CNTL, rinfo->save_regs[15]);
2410 OUTREG(AGP_CNTL, rinfo->save_regs[16]);
2411 OUTREG(CRTC_GEN_CNTL, rinfo->save_regs[17]);
2412 OUTREG(CRTC2_GEN_CNTL, rinfo->save_regs[18]);
2413
2414 // wait VBL before that one ?
2415 OUTPLL(P2PLL_CNTL, rinfo->save_regs[8]);
2416
2417 OUTREG(GPIOPAD_A, rinfo->save_regs[19]);
2418 OUTREG(GPIOPAD_EN, rinfo->save_regs[20]);
2419 OUTREG(GPIOPAD_MASK, rinfo->save_regs[21]);
2420 OUTREG(ZV_LCDPAD_A, rinfo->save_regs[22]);
2421 OUTREG(ZV_LCDPAD_EN, rinfo->save_regs[23]);
2422 OUTREG(ZV_LCDPAD_MASK, rinfo->save_regs[24]);
2423 OUTREG(GPIO_VGA_DDC, rinfo->save_regs[25]);
2424 OUTREG(GPIO_DVI_DDC, rinfo->save_regs[26]);
2425 OUTREG(GPIO_MONID, rinfo->save_regs[27]);
2426 OUTREG(GPIO_CRT2_DDC, rinfo->save_regs[28]);
2427 }
2428
2429 static void radeon_pm_disable_iopad(struct radeonfb_info *rinfo)
2430 {
2431 OUTREG(GPIOPAD_MASK, 0x0001ffff);
2432 OUTREG(GPIOPAD_EN, 0x00000400);
2433 OUTREG(GPIOPAD_A, 0x00000000);
2434 OUTREG(ZV_LCDPAD_MASK, 0x00000000);
2435 OUTREG(ZV_LCDPAD_EN, 0x00000000);
2436 OUTREG(ZV_LCDPAD_A, 0x00000000);
2437 OUTREG(GPIO_VGA_DDC, 0x00030000);
2438 OUTREG(GPIO_DVI_DDC, 0x00000000);
2439 OUTREG(GPIO_MONID, 0x00030000);
2440 OUTREG(GPIO_CRT2_DDC, 0x00000000);
2441 }
2442
2443 static void radeon_pm_program_v2clk(struct radeonfb_info *rinfo)
2444 {
2445 //
2446 // u32 reg;
2447 //
2448 // OUTPLL(P2PLL_REF_DIV, 0x0c);
2449 //
2450 // .../... figure out what macos does here
2451 }
2452
2453 static void radeon_pm_low_current(struct radeonfb_info *rinfo)
2454 {
2455 u32 reg;
2456
2457 reg = INREG(BUS_CNTL1);
2458 reg &= ~BUS_CNTL1_MOBILE_PLATFORM_SEL_MASK;
2459 reg |= BUS_CNTL1_AGPCLK_VALID | (1<<BUS_CNTL1_MOBILE_PLATFORM_SEL_SHIFT);
2460 OUTREG(BUS_CNTL1, reg);
2461
2462 reg = INPLL(PLL_PWRMGT_CNTL);
2463 reg |= PLL_PWRMGT_CNTL_SPLL_TURNOFF | PLL_PWRMGT_CNTL_PPLL_TURNOFF |
2464 PLL_PWRMGT_CNTL_P2PLL_TURNOFF | PLL_PWRMGT_CNTL_TVPLL_TURNOFF;
2465 reg &= ~PLL_PWRMGT_CNTL_SU_MCLK_USE_BCLK;
2466 reg &= ~PLL_PWRMGT_CNTL_MOBILE_SU;
2467 OUTPLL(PLL_PWRMGT_CNTL, reg);
2468
2469 // reg = INPLL(TV_PLL_CNTL1);
2470 // reg |= TV_PLL_CNTL1__TVPLL_RESET | TV_PLL_CNTL1__TVPLL_SLEEP;
2471 // OUTPLL(TV_PLL_CNTL1, reg);
2472
2473 reg = INREG(TV_DAC_CNTL);
2474 reg &= ~(TV_DAC_CNTL_BGADJ_MASK |TV_DAC_CNTL_DACADJ_MASK);
2475 reg |=TV_DAC_CNTL_BGSLEEP | TV_DAC_CNTL_RDACPD | TV_DAC_CNTL_GDACPD |
2476 TV_DAC_CNTL_BDACPD |
2477 (8<<TV_DAC_CNTL_BGADJ__SHIFT) | (8<<TV_DAC_CNTL_DACADJ__SHIFT);
2478 OUTREG(TV_DAC_CNTL, reg);
2479
2480 reg = INREG(TMDS_TRANSMITTER_CNTL);
2481 reg &= ~(TMDS_PLL_EN |TMDS_PLLRST);
2482 OUTREG(TMDS_TRANSMITTER_CNTL, reg);
2483
2484 // lvds_pll_cntl = regr32(g, LVDS_PLL_CNTL);
2485 // lvds_pll_cntl &= ~LVDS_PLL_CNTL__LVDS_PLL_EN;
2486 // lvds_pll_cntl |= LVDS_PLL_CNTL__LVDS_PLL_RESET;
2487 // regw32(g, LVDS_PLL_CNTL, lvds_pll_cntl);
2488
2489 reg = INREG(DAC_CNTL);
2490 reg &= ~DAC_CMP_EN;
2491 OUTREG(DAC_CNTL, reg);
2492
2493 reg = INREG(DAC_CNTL2);
2494 reg &= ~DAC2_CMP_EN;
2495 OUTREG(DAC_CNTL2, reg);
2496
2497 reg = INREG(TV_DAC_CNTL);
2498 reg &= ~TV_DAC_CNTL_DETECT;
2499 OUTREG(TV_DAC_CNTL, reg);
2500 }
2501
2502 static void radeon_pm_setup_for_suspend(struct radeonfb_info *rinfo)
2503 {
2504 /* This code is disabled. It does what is in the pm_init
2505 * function of the MacOS driver code ATI sent me. However,
2506 * it doesn't fix my sleep problem, and is causing other issues
2507 * on wakeup (bascially the machine dying when switching consoles
2508 * I haven't had time to investigate this yet
2509 */
2510 #if 0
2511 u32 disp_misc_cntl;
2512 u32 disp_pwr_man;
2513 u32 temp;
2514
2515 // set SPLL, MPLL, PPLL, P2PLL, TVPLL, SCLK, MCLK, PCLK, P2CLK,
2516 // TCLK and TEST_MODE to 0
2517 temp = INPLL(CLK_PWRMGT_CNTL);
2518 OUTPLL(CLK_PWRMGT_CNTL , temp & ~0xc00002ff);
2519
2520 // Turn on Power Management
2521 temp = INPLL(CLK_PWRMGT_CNTL);
2522 OUTPLL(CLK_PWRMGT_CNTL , temp | 0x00000400);
2523
2524 // Turn off display clock if using mobile chips
2525 temp = INPLL(CLK_PWRMGT_CNTL);
2526 OUTREG(CLK_PWRMGT_CNTL , temp | 0x00100000);
2527
2528 // Force PIXCLK_ALWAYS_ON and PIXCLK_DAC_ALWAYS_ON
2529 temp = INPLL(VCLK_ECP_CNTL);
2530 OUTPLL(VCLK_ECP_CNTL, temp & ~0x000000c0);
2531
2532 // Force ECP_FORCE_ON to 1
2533 temp = INPLL(VCLK_ECP_CNTL);
2534 OUTPLL(VCLK_ECP_CNTL, temp | 0x00040000);
2535
2536 // Force PIXCLK_BLEND_ALWAYS_ON and PIXCLK_GV_ALWAYS_ON
2537 temp = INPLL(PIXCLKS_CNTL);
2538 OUTPLL(PIXCLKS_CNTL, temp & ~0x00001800);
2539
2540 // Forcing SCLK_CNTL to ON
2541 OUTPLL(SCLK_CNTL, (INPLL(SCLK_CNTL)& 0x00000007) | 0xffff8000 );
2542
2543 // Set PM control over XTALIN pad
2544 temp = INPLL(CLK_PIN_CNTL);
2545 OUTPLL(CLK_PIN_CNTL, temp | 0x00080000);
2546
2547 // Force MCLK and YCLK and MC as dynamic
2548 temp = INPLL(MCLK_CNTL);
2549 OUTPLL(MCLK_CNTL, temp & 0xffeaffff);
2550
2551 // PLL_TURNOFF
2552 temp = INPLL(PLL_PWRMGT_CNTL);
2553 OUTPLL(PLL_PWRMGT_CNTL, temp | 0x0000001f);
2554
2555 // set MOBILE_SU to 1 if M6 or DDR64 is detected
2556 temp = INPLL(PLL_PWRMGT_CNTL);
2557 OUTPLL(PLL_PWRMGT_CNTL, temp | 0x00010000);
2558
2559 // select PM access mode (PM_MODE_SEL) (use ACPI mode)
2560 // temp = INPLL(PLL_PWRMGT_CNTL);
2561 // OUTPLL(PLL_PWRMGT_CNTL, temp | 0x00002000);
2562 temp = INPLL(PLL_PWRMGT_CNTL);
2563 OUTPLL(PLL_PWRMGT_CNTL, temp & ~0x00002000);
2564
2565 // set DISP_MISC_CNTL register
2566 disp_misc_cntl = INREG(DISP_MISC_CNTL);
2567 disp_misc_cntl &= ~( DISP_MISC_CNTL_SOFT_RESET_GRPH_PP |
2568 DISP_MISC_CNTL_SOFT_RESET_SUBPIC_PP |
2569 DISP_MISC_CNTL_SOFT_RESET_OV0_PP |
2570 DISP_MISC_CNTL_SOFT_RESET_GRPH_SCLK |
2571 DISP_MISC_CNTL_SOFT_RESET_SUBPIC_SCLK |
2572 DISP_MISC_CNTL_SOFT_RESET_OV0_SCLK |
2573 DISP_MISC_CNTL_SOFT_RESET_GRPH2_PP |
2574 DISP_MISC_CNTL_SOFT_RESET_GRPH2_SCLK |
2575 DISP_MISC_CNTL_SOFT_RESET_LVDS |
2576 DISP_MISC_CNTL_SOFT_RESET_TMDS |
2577 DISP_MISC_CNTL_SOFT_RESET_DIG_TMDS |
2578 DISP_MISC_CNTL_SOFT_RESET_TV);
2579 OUTREG(DISP_MISC_CNTL, disp_misc_cntl);
2580
2581 // set DISP_PWR_MAN register
2582 disp_pwr_man = INREG(DISP_PWR_MAN);
2583 // clau - 9.29.2000 - changes made to bit23:18 to set to 1 as requested by George
2584 disp_pwr_man |= (DISP_PWR_MAN_DIG_TMDS_ENABLE_RST |
2585 DISP_PWR_MAN_TV_ENABLE_RST |
2586 // DISP_PWR_MAN_AUTO_PWRUP_EN |
2587 DISP_PWR_MAN_DISP_D3_GRPH_RST |
2588 DISP_PWR_MAN_DISP_D3_SUBPIC_RST |
2589 DISP_PWR_MAN_DISP_D3_OV0_RST |
2590 DISP_PWR_MAN_DISP_D1D2_GRPH_RST |
2591 DISP_PWR_MAN_DISP_D1D2_SUBPIC_RST |
2592 DISP_PWR_MAN_DISP_D1D2_OV0_RST);
2593 disp_pwr_man &= ~(DISP_PWR_MAN_DISP_PWR_MAN_D3_CRTC_EN |
2594 DISP_PWR_MAN_DISP2_PWR_MAN_D3_CRTC2_EN|
2595 DISP_PWR_MAN_DISP_D3_RST |
2596 DISP_PWR_MAN_DISP_D3_REG_RST);
2597 OUTREG(DISP_PWR_MAN, disp_pwr_man);
2598
2599 // clau - 10.24.2000
2600 // - add in setting for BUS_CNTL1 b27:26 = 0x01 and b31 = 0x1
2601 // - add in setting for AGP_CNTL b7:0 = 0x20
2602 // - add in setting for DVI_DDC_DATA_OUT_EN b17:16 = 0x0
2603
2604 // the following settings (two lines) are applied at a later part of this function, only on mobile platform
2605 // requres -mobile flag
2606 OUTREG(BUS_CNTL1, (INREG(BUS_CNTL1) & 0xf3ffffff) | 0x04000000);
2607 OUTREG(BUS_CNTL1, INREG(BUS_CNTL1) | 0x80000000);
2608 OUTREG(AGP_CNTL, (INREG(AGP_CNTL) & 0xffffff00) | 0x20);
2609 OUTREG(GPIO_DVI_DDC, INREG(GPIO_DVI_DDC) & 0xfffcffff);
2610
2611 // yulee - 12.12.2000
2612 // A12 only
2613 // EN_MCLK_TRISTATE_IN_SUSPEND@MCLK_MISC = 1
2614 // ACCESS_REGS_IN_SUSPEND@CLK_PIN_CNTL = 0
2615 // only on mobile platform
2616 OUTPLL(MCLK_MISC, INPLL(MCLK_MISC) | 0x00040000 );
2617
2618 // yulee -12.12.2000
2619 // AGPCLK_VALID@BUS_CNTL1 = 1
2620 // MOBILE_PLATFORM_SEL@BUS_CNTL1 = 01
2621 // CRTC_STEREO_SYNC_OUT_EN@CRTC_OFFSET_CNTL = 0
2622 // CG_CLK_TO_OUTPIN@CLK_PIN_CNTL = 0
2623 // only on mobile platform
2624 OUTPLL(CLK_PIN_CNTL, INPLL(CLK_PIN_CNTL ) & 0xFFFFF7FF );
2625 OUTREG(BUS_CNTL1, (INREG(BUS_CNTL1 ) & 0xF3FFFFFF) | 0x84000000 );
2626 OUTREG(CRTC_OFFSET_CNTL, INREG(CRTC_OFFSET_CNTL ) & 0xFFEFFFFF );
2627
2628 mdelay(100);
2629 #endif
2630
2631 /* Disable CRTCs */
2632 OUTREG(CRTC_GEN_CNTL, (INREG(CRTC_GEN_CNTL) & ~CRTC_EN) | CRTC_DISP_REQ_EN_B);
2633 OUTREG(CRTC2_GEN_CNTL, (INREG(CRTC2_GEN_CNTL) & ~CRTC2_EN) | CRTC2_DISP_REQ_EN_B);
2634 (void)INREG(CRTC2_GEN_CNTL);
2635 mdelay(17);
2636 }
2637
2638 static void radeon_set_suspend(struct radeonfb_info *rinfo, int suspend)
2639 {
2640 u16 pwr_cmd;
2641
2642 if (!rinfo->pm_reg)
2643 return;
2644
2645 /* Set the chip into appropriate suspend mode (we use D2,
2646 * D3 would require a compete re-initialization of the chip,
2647 * including PCI config registers, clocks, AGP conf, ...)
2648 */
2649 if (suspend) {
2650 /* According to ATI, we should program V2CLK here, I have
2651 * to verify what's up exactly
2652 */
2653 /* Save some registers */
2654 radeon_pm_save_regs(rinfo);
2655
2656 /* Check that on M7 too, might work might not. M7 may also
2657 * need explicit enabling of PM
2658 */
2659 if (rinfo->arch == RADEON_M6) {
2660 /* Program V2CLK */
2661 radeon_pm_program_v2clk(rinfo);
2662
2663 /* Disable IO PADs */
2664 radeon_pm_disable_iopad(rinfo);
2665
2666 /* Set low current */
2667 radeon_pm_low_current(rinfo);
2668
2669 /* Prepare chip for power management */
2670 radeon_pm_setup_for_suspend(rinfo);
2671
2672 /* Reset the MDLL */
2673 OUTPLL(MDLL_CKO, INPLL(MDLL_CKO) | MCKOA_RESET);
2674 (void)INPLL(MDLL_RDCKA);
2675 OUTPLL(MDLL_CKO, INPLL(MDLL_CKO) & ~MCKOA_RESET);
2676 (void)INPLL(MDLL_RDCKA);
2677 }
2678
2679 /* Switch PCI power managment to D2. */
2680 for (;;) {
2681 pci_read_config_word(
2682 rinfo->pdev, rinfo->pm_reg+PCI_PM_CTRL,
2683 &pwr_cmd);
2684 if (pwr_cmd & 2)
2685 break;
2686 pci_write_config_word(
2687 rinfo->pdev, rinfo->pm_reg+PCI_PM_CTRL,
2688 (pwr_cmd & ~PCI_PM_CTRL_STATE_MASK) | 2);
2689 mdelay(500);
2690 }
2691 } else {
2692 /* Switch back PCI powermanagment to D0 */
2693 mdelay(200);
2694 pci_write_config_word(rinfo->pdev, rinfo->pm_reg+PCI_PM_CTRL, 0);
2695 mdelay(500);
2696
2697 dbg_clk = INPLL(1);
2698
2699 /* Do we need that on M7 ? */
2700 if (rinfo->arch == RADEON_M6) {
2701 /* Restore the MDLL */
2702 OUTPLL(MDLL_CKO, INPLL(MDLL_CKO) & ~MCKOA_RESET);
2703 (void)INPLL(MDLL_CKO);
2704 }
2705
2706 /* Restore some registers */
2707 radeon_pm_restore_regs(rinfo);
2708 }
2709 }
2710
2711 /*
2712 * Save the contents of the framebuffer when we go to sleep,
2713 * and restore it when we wake up again.
2714 */
2715
2716 int radeon_sleep_notify(struct pmu_sleep_notifier *self, int when)
2717 {
2718 struct radeonfb_info *rinfo;
2719
2720 for (rinfo = board_list; rinfo != NULL; rinfo = rinfo->next) {
2721 struct fb_fix_screeninfo fix;
2722 int nb;
2723 struct display *disp;
2724
2725 disp = (rinfo->currcon < 0) ? rinfo->info.disp : &fb_display[rinfo->currcon];
2726
2727 switch (rinfo->arch) {
2728 case RADEON_M6:
2729 case RADEON_M7:
2730 case RADEON_M9:
2731 break;
2732 default:
2733 return PBOOK_SLEEP_REFUSE;
2734 }
2735
2736 radeonfb_get_fix(&fix, fg_console, (struct fb_info *)rinfo);
2737 nb = fb_display[fg_console].var.yres * fix.line_length;
2738
2739 switch (when) {
2740 case PBOOK_SLEEP_NOW:
2741 acquire_console_sem();
2742 disp->dispsw = &fbcon_dummy;
2743
2744 if (!noaccel) {
2745 /* Make sure engine is reset */
2746 radeon_engine_reset();
2747 radeon_engine_idle();
2748 }
2749
2750 /* Blank display and LCD */
2751 radeonfb_blank(VESA_POWERDOWN+1,
2752 (struct fb_info *)rinfo);
2753
2754 /* Sleep */
2755 rinfo->asleep = 1;
2756 radeon_set_suspend(rinfo, 1);
2757 release_console_sem();
2758
2759 break;
2760 case PBOOK_WAKE:
2761 acquire_console_sem();
2762 /* Wakeup */
2763 radeon_set_suspend(rinfo, 0);
2764
2765 if (!noaccel)
2766 radeon_engine_init(rinfo);
2767 rinfo->asleep = 0;
2768 radeon_set_dispsw(rinfo, disp);
2769 radeon_load_video_mode(rinfo, &disp->var);
2770 do_install_cmap(rinfo->currcon < 0 ? 0 : rinfo->currcon,
2771 (struct fb_info *)rinfo);
2772
2773 radeonfb_blank(0, (struct fb_info *)rinfo);
2774 release_console_sem();
2775 printk("CLK_PIN_CNTL on wakeup was: %08x\n", dbg_clk);
2776 break;
2777 }
2778 }
2779
2780 return PBOOK_SLEEP_OK;
2781 }
2782
2783 #endif /* CONFIG_PMAC_PBOOK */
2784
2785 static int radeonfb_pci_register (struct pci_dev *pdev,
2786 const struct pci_device_id *ent)
2787 {
2788 struct radeonfb_info *rinfo;
2789 struct radeon_chip_info *rci = &radeon_chip_info[ent->driver_data];
2790 u32 tmp;
2791
2792 RTRACE("radeonfb_pci_register BEGIN\n");
2793
2794 /* Enable device in PCI config */
2795 if (pci_enable_device(pdev) != 0) {
2796 printk(KERN_ERR "radeonfb: Cannot enable PCI device\n");
2797 return -ENODEV;
2798 }
2799
2800 rinfo = kmalloc (sizeof (struct radeonfb_info), GFP_KERNEL);
2801 if (!rinfo) {
2802 printk ("radeonfb: could not allocate memory\n");
2803 return -ENODEV;
2804 }
2805
2806 memset (rinfo, 0, sizeof (struct radeonfb_info));
2807 //info = &rinfo->info;
2808 rinfo->pdev = pdev;
2809 strcpy(rinfo->name, rci->name);
2810 rinfo->arch = rci->arch;
2811
2812 /* Set base addrs */
2813 rinfo->fb_base_phys = pci_resource_start (pdev, 0);
2814 rinfo->mmio_base_phys = pci_resource_start (pdev, 2);
2815
2816 /* request the mem regions */
2817 if (!request_mem_region (rinfo->fb_base_phys,
2818 pci_resource_len(pdev, 0), "radeonfb")) {
2819 printk ("radeonfb: cannot reserve FB region\n");
2820 kfree (rinfo);
2821 return -ENODEV;
2822 }
2823
2824 if (!request_mem_region (rinfo->mmio_base_phys,
2825 pci_resource_len(pdev, 2), "radeonfb")) {
2826 printk ("radeonfb: cannot reserve MMIO region\n");
2827 release_mem_region (rinfo->fb_base_phys,
2828 pci_resource_len(pdev, 0));
2829 kfree (rinfo);
2830 return -ENODEV;
2831 }
2832
2833 /* map the regions */
2834 rinfo->mmio_base = ioremap (rinfo->mmio_base_phys, RADEON_REGSIZE);
2835 if (!rinfo->mmio_base) {
2836 printk ("radeonfb: cannot map MMIO\n");
2837 release_mem_region (rinfo->mmio_base_phys,
2838 pci_resource_len(pdev, 2));
2839 release_mem_region (rinfo->fb_base_phys,
2840 pci_resource_len(pdev, 0));
2841 kfree (rinfo);
2842 return -ENODEV;
2843 }
2844
2845 rinfo->chipset = pdev->device;
2846
2847 switch (rinfo->arch) {
2848 case RADEON_R100:
2849 rinfo->hasCRTC2 = 0;
2850 break;
2851 default:
2852 /* all the rest have it */
2853 rinfo->hasCRTC2 = 1;
2854 break;
2855 }
2856 #if 0
2857 if (rinfo->arch == RADEON_M7) {
2858 /*
2859 * Noticed some errors in accel with M7, will have to work these out...
2860 */
2861 noaccel = 1;
2862 }
2863 #endif
2864 if (mirror)
2865 printk("radeonfb: mirroring display to CRT\n");
2866
2867 /* framebuffer size */
2868 tmp = INREG(CONFIG_MEMSIZE);
2869
2870 /* mem size is bits [28:0], mask off the rest */
2871 rinfo->video_ram = tmp & CONFIG_MEMSIZE_MASK;
2872
2873 /* ram type */
2874 tmp = INREG(MEM_SDRAM_MODE_REG);
2875 switch ((MEM_CFG_TYPE & tmp) >> 30) {
2876 case 0:
2877 /* SDR SGRAM (2:1) */
2878 strcpy(rinfo->ram_type, "SDR SGRAM");
2879 rinfo->ram.ml = 4;
2880 rinfo->ram.mb = 4;
2881 rinfo->ram.trcd = 1;
2882 rinfo->ram.trp = 2;
2883 rinfo->ram.twr = 1;
2884 rinfo->ram.cl = 2;
2885 rinfo->ram.loop_latency = 16;
2886 rinfo->ram.rloop = 16;
2887
2888 break;
2889 case 1:
2890 /* DDR SGRAM */
2891 strcpy(rinfo->ram_type, "DDR SGRAM");
2892 rinfo->ram.ml = 4;
2893 rinfo->ram.mb = 4;
2894 rinfo->ram.trcd = 3;
2895 rinfo->ram.trp = 3;
2896 rinfo->ram.twr = 2;
2897 rinfo->ram.cl = 3;
2898 rinfo->ram.tr2w = 1;
2899 rinfo->ram.loop_latency = 16;
2900 rinfo->ram.rloop = 16;
2901
2902 break;
2903 default:
2904 /* 64-bit SDR SGRAM */
2905 strcpy(rinfo->ram_type, "SDR SGRAM 64");
2906 rinfo->ram.ml = 4;
2907 rinfo->ram.mb = 8;
2908 rinfo->ram.trcd = 3;
2909 rinfo->ram.trp = 3;
2910 rinfo->ram.twr = 1;
2911 rinfo->ram.cl = 3;
2912 rinfo->ram.tr2w = 1;
2913 rinfo->ram.loop_latency = 17;
2914 rinfo->ram.rloop = 17;
2915
2916 break;
2917 }
2918
2919 rinfo->bios_seg = radeon_find_rom(rinfo);
2920 radeon_get_pllinfo(rinfo, rinfo->bios_seg);
2921
2922 /*
2923 * Hack to get around some busted production M6's
2924 * reporting no ram
2925 */
2926 if (rinfo->video_ram == 0) {
2927 switch (pdev->device) {
2928 case PCI_DEVICE_ID_ATI_RADEON_LY:
2929 case PCI_DEVICE_ID_ATI_RADEON_LZ:
2930 rinfo->video_ram = 8192 * 1024;
2931 break;
2932 default:
2933 break;
2934 }
2935 }
2936
2937
2938 RTRACE("radeonfb: probed %s %dk videoram\n", (rinfo->ram_type), (rinfo->video_ram/1024));
2939
2940 #if !defined(__powerpc__)
2941 radeon_get_moninfo(rinfo);
2942 #else
2943 switch (pdev->device) {
2944 case PCI_DEVICE_ID_ATI_RADEON_LW:
2945 case PCI_DEVICE_ID_ATI_RADEON_LX:
2946 case PCI_DEVICE_ID_ATI_RADEON_LY:
2947 case PCI_DEVICE_ID_ATI_RADEON_LZ:
2948 rinfo->dviDisp_type = MT_LCD;
2949 break;
2950 default:
2951 radeon_get_moninfo(rinfo);
2952 break;
2953 }
2954 #endif
2955
2956 radeon_get_EDID(rinfo);
2957
2958 if ((rinfo->dviDisp_type == MT_DFP) || (rinfo->dviDisp_type == MT_LCD) ||
2959 (rinfo->crtDisp_type == MT_DFP)) {
2960 if (!radeon_get_dfpinfo(rinfo)) {
2961 iounmap(rinfo->mmio_base);
2962 release_mem_region (rinfo->mmio_base_phys,
2963 pci_resource_len(pdev, 2));
2964 release_mem_region (rinfo->fb_base_phys,
2965 pci_resource_len(pdev, 0));
2966 kfree (rinfo);
2967 return -ENODEV;
2968 }
2969 }
2970
2971 rinfo->fb_base = ioremap (rinfo->fb_base_phys, rinfo->video_ram);
2972 if (!rinfo->fb_base) {
2973 printk ("radeonfb: cannot map FB\n");
2974 iounmap(rinfo->mmio_base);
2975 release_mem_region (rinfo->mmio_base_phys,
2976 pci_resource_len(pdev, 2));
2977 release_mem_region (rinfo->fb_base_phys,
2978 pci_resource_len(pdev, 0));
2979 kfree (rinfo);
2980 return -ENODEV;
2981 }
2982
2983 /* I SHOULD FIX THAT CRAP ! I should probably mimmic XFree DRI
2984 * driver setup here.
2985 *
2986 * On PPC, OF based cards setup the internal memory
2987 * mapping in strange ways. We change it so that the
2988 * framebuffer is mapped at 0 and given half of the card's
2989 * address space (2Gb). AGP is mapped high (0xe0000000) and
2990 * can use up to 512Mb. Once DRI is fully implemented, we
2991 * will have to setup the PCI remapper to remap the agp_special_page
2992 * memory page somewhere between those regions so that the card
2993 * use a normal PCI bus master cycle to access the ring read ptr.
2994 * --BenH.
2995 */
2996 #ifdef CONFIG_ALL_PPC
2997 if (rinfo->hasCRTC2)
2998 OUTREG(CRTC2_GEN_CNTL,
2999 (INREG(CRTC2_GEN_CNTL) & ~CRTC2_EN) | CRTC2_DISP_REQ_EN_B);
3000 OUTREG(CRTC_EXT_CNTL, INREG(CRTC_EXT_CNTL) | CRTC_DISPLAY_DIS);
3001 OUTREG(MC_FB_LOCATION, 0x7fff0000);
3002 OUTREG(MC_AGP_LOCATION, 0xffffe000);
3003 OUTREG(DISPLAY_BASE_ADDR, 0x00000000);
3004 if (rinfo->hasCRTC2)
3005 OUTREG(CRTC2_DISPLAY_BASE_ADDR, 0x00000000);
3006 OUTREG(SRC_OFFSET, 0x00000000);
3007 OUTREG(DST_OFFSET, 0x00000000);
3008 mdelay(10);
3009 OUTREG(CRTC_EXT_CNTL, INREG(CRTC_EXT_CNTL) & ~CRTC_DISPLAY_DIS);
3010 #endif /* CONFIG_ALL_PPC */
3011
3012 /* save current mode regs before we switch into the new one
3013 * so we can restore this upon __exit
3014 */
3015 radeon_save_state (rinfo, &rinfo->init_state);
3016
3017 /* set all the vital stuff */
3018 radeon_set_fbinfo (rinfo);
3019
3020 pci_set_drvdata(pdev, rinfo);
3021 rinfo->next = board_list;
3022 board_list = rinfo;
3023 ((struct fb_info *) rinfo)->device = &pdev->dev;
3024 if (register_framebuffer ((struct fb_info *) rinfo) < 0) {
3025 printk ("radeonfb: could not register framebuffer\n");
3026 iounmap(rinfo->fb_base);
3027 iounmap(rinfo->mmio_base);
3028 release_mem_region (rinfo->mmio_base_phys,
3029 pci_resource_len(pdev, 2));
3030 release_mem_region (rinfo->fb_base_phys,
3031 pci_resource_len(pdev, 0));
3032 kfree (rinfo);
3033 return -ENODEV;
3034 }
3035
3036 #ifdef CONFIG_MTRR
3037 rinfo->mtrr_hdl = nomtrr ? -1 : mtrr_add(rinfo->fb_base_phys,
3038 rinfo->video_ram,
3039 MTRR_TYPE_WRCOMB, 1);
3040 #endif
3041
3042 #ifdef CONFIG_PMAC_BACKLIGHT
3043 if (rinfo->dviDisp_type == MT_LCD)
3044 register_backlight_controller(&radeon_backlight_controller,
3045 rinfo, "ati");
3046 #endif
3047
3048 #ifdef CONFIG_PMAC_PBOOK
3049 if (rinfo->dviDisp_type == MT_LCD) {
3050 rinfo->pm_reg = pci_find_capability(pdev, PCI_CAP_ID_PM);
3051 pmu_register_sleep_notifier(&radeon_sleep_notifier);
3052 }
3053 #endif
3054
3055 printk ("radeonfb: ATI Radeon %s %s %d MB\n", rinfo->name, rinfo->ram_type,
3056 (rinfo->video_ram/(1024*1024)));
3057
3058 if (rinfo->hasCRTC2) {
3059 printk("radeonfb: DVI port %s monitor connected\n",
3060 GET_MON_NAME(rinfo->dviDisp_type));
3061 printk("radeonfb: CRT port %s monitor connected\n",
3062 GET_MON_NAME(rinfo->crtDisp_type));
3063 } else {
3064 printk("radeonfb: CRT port %s monitor connected\n",
3065 GET_MON_NAME(rinfo->crtDisp_type));
3066 }
3067
3068 RTRACE("radeonfb_pci_register END\n");
3069
3070 return 0;
3071 }
3072
3073
3074
3075 static void __devexit radeonfb_pci_unregister (struct pci_dev *pdev)
3076 {
3077 struct radeonfb_info *rinfo = pci_get_drvdata(pdev);
3078
3079 if (!rinfo)
3080 return;
3081
3082 /* restore original state
3083 *
3084 * Doesn't quite work yet, possibly because of the PPC hacking
3085 * I do on startup, disable for now. --BenH
3086 */
3087 radeon_write_mode (rinfo, &rinfo->init_state);
3088
3089 #ifdef CONFIG_MTRR
3090 if (rinfo->mtrr_hdl >= 0)
3091 mtrr_del(rinfo->mtrr_hdl, 0, 0);
3092 #endif
3093
3094 unregister_framebuffer ((struct fb_info *) rinfo);
3095
3096 iounmap(rinfo->mmio_base);
3097 iounmap(rinfo->fb_base);
3098
3099 release_mem_region (rinfo->mmio_base_phys,
3100 pci_resource_len(pdev, 2));
3101 release_mem_region (rinfo->fb_base_phys,
3102 pci_resource_len(pdev, 0));
3103
3104 kfree (rinfo);
3105 }
3106
3107
3108 static struct pci_driver radeonfb_driver = {
3109 .name = "radeonfb",
3110 .id_table = radeonfb_pci_table,
3111 .probe = radeonfb_pci_register,
3112 .remove = __devexit_p(radeonfb_pci_unregister),
3113 };
3114
3115 #ifndef MODULE
3116 static int __init radeonfb_old_setup (char *options)
3117 {
3118 char *this_opt;
3119
3120 if (!options || !*options)
3121 return 0;
3122
3123 while ((this_opt = strsep (&options, ",")) != NULL) {
3124 if (!*this_opt)
3125 continue;
3126 if (!strncmp(this_opt, "noaccel", 7)) {
3127 noaccel = 1;
3128 } else if (!strncmp(this_opt, "mirror", 6)) {
3129 mirror = 1;
3130 } else if (!strncmp(this_opt, "dfp", 3)) {
3131 force_dfp = 1;
3132 } else if (!strncmp(this_opt, "panel_yres:", 11)) {
3133 panel_yres = simple_strtoul((this_opt+11), NULL, 0);
3134 } else if (!strncmp(this_opt, "nomtrr", 6)) {
3135 nomtrr = 1;
3136 } else
3137 mode_option = this_opt;
3138 }
3139
3140 return 0;
3141 }
3142 #endif /* MODULE */
3143
3144 static int __init radeonfb_old_init (void)
3145 {
3146 #ifndef MODULE
3147 char *option = NULL;
3148
3149 if (fb_get_options("radeonfb_old", &option))
3150 return -ENODEV;
3151 radeonfb_old_setup(option);
3152 #endif
3153 return pci_register_driver (&radeonfb_driver);
3154 }
3155
3156
3157 static void __exit radeonfb_old_exit (void)
3158 {
3159 pci_unregister_driver (&radeonfb_driver);
3160 }
3161
3162 module_init(radeonfb_old_init);
3163 module_exit(radeonfb_old_exit);
3164
3165
3166 MODULE_AUTHOR("Ani Joshi");
3167 MODULE_DESCRIPTION("framebuffer driver for ATI Radeon chipset");
3168 MODULE_LICENSE("GPL");
Verdex Pro support