1 /* $Id: aty128fb.c,v 1.1.1.1.36.1 1999/12/11 09:03:05 Exp $
2 * linux/drivers/video/aty128fb.c -- Frame buffer device for ATI Rage128
4 * Copyright (C) 1999-2003, Brad Douglas <brad@neruo.com>
5 * Copyright (C) 1999, Anthony Tong <atong@uiuc.edu>
7 * Ani Joshi / Jeff Garzik
10 * Michel Danzer <michdaen@iiic.ethz.ch>
14 * Benjamin Herrenschmidt
15 * - pmac-specific PM stuff
16 * - various fixes & cleanups
18 * Andreas Hundt <andi@convergence.de>
21 * Paul Mackerras <paulus@samba.org>
22 * - Convert to new framebuffer API,
23 * fix colormap setting at 16 bits/pixel (565)
28 * Jon Smirl <jonsmirl@yahoo.com>
30 * - replace ROM BIOS search
32 * Based off of Geert's atyfb.c and vfb.c.
35 * - monitor sensing (DDC)
37 * - other platform support (only ppc/x86 supported)
38 * - hardware cursor support
40 * Please cc: your patches to brad@neruo.com.
44 * A special note of gratitude to ATI's devrel for providing documentation,
45 * example code and hardware. Thanks Nitya. -atong and brad
49 #include <linux/module.h>
50 #include <linux/moduleparam.h>
51 #include <linux/kernel.h>
52 #include <linux/errno.h>
53 #include <linux/string.h>
55 #include <linux/tty.h>
56 #include <linux/slab.h>
57 #include <linux/vmalloc.h>
58 #include <linux/delay.h>
59 #include <linux/interrupt.h>
60 #include <asm/uaccess.h>
62 #include <linux/init.h>
63 #include <linux/pci.h>
64 #include <linux/ioport.h>
65 #include <linux/console.h>
66 #include <linux/backlight.h>
69 #ifdef CONFIG_PPC_PMAC
70 #include <asm/machdep.h>
71 #include <asm/pmac_feature.h>
73 #include <asm/pci-bridge.h>
74 #include "../macmodes.h"
77 #ifdef CONFIG_PMAC_BACKLIGHT
78 #include <asm/backlight.h>
81 #ifdef CONFIG_BOOTX_TEXT
82 #include <asm/btext.h>
83 #endif /* CONFIG_BOOTX_TEXT */
89 #include <video/aty128.h>
95 #define DBG(fmt, args...) printk(KERN_DEBUG "aty128fb: %s " fmt, __FUNCTION__, ##args);
97 #define DBG(fmt, args...)
100 #ifndef CONFIG_PPC_PMAC
102 static struct fb_var_screeninfo default_var __devinitdata = {
103 /* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */
104 640, 480, 640, 480, 0, 0, 8, 0,
105 {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
106 0, 0, -1, -1, 0, 39722, 48, 16, 33, 10, 96, 2,
107 0, FB_VMODE_NONINTERLACED
110 #else /* CONFIG_PPC_PMAC */
111 /* default to 1024x768 at 75Hz on PPC - this will work
112 * on the iMac, the usual 640x480 @ 60Hz doesn't. */
113 static struct fb_var_screeninfo default_var = {
114 /* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */
115 1024, 768, 1024, 768, 0, 0, 8, 0,
116 {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
117 0, 0, -1, -1, 0, 12699, 160, 32, 28, 1, 96, 3,
118 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
119 FB_VMODE_NONINTERLACED
121 #endif /* CONFIG_PPC_PMAC */
123 /* default modedb mode */
124 /* 640x480, 60 Hz, Non-Interlaced (25.172 MHz dotclock) */
125 static struct fb_videomode defaultmode __devinitdata = {
137 .vmode = FB_VMODE_NONINTERLACED
140 /* Chip generations */
152 /* Must match above enum */
153 static const char *r128_family[] __devinitdata = {
165 * PCI driver prototypes
167 static int aty128_probe(struct pci_dev *pdev,
168 const struct pci_device_id *ent);
169 static void aty128_remove(struct pci_dev *pdev);
170 static int aty128_pci_suspend(struct pci_dev *pdev, pm_message_t state);
171 static int aty128_pci_resume(struct pci_dev *pdev);
172 static int aty128_do_resume(struct pci_dev *pdev);
174 /* supported Rage128 chipsets */
175 static struct pci_device_id aty128_pci_tbl[] = {
176 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_LE,
177 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M3_pci },
178 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_LF,
179 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M3 },
180 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_MF,
181 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M4 },
182 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_ML,
183 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M4 },
184 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PA,
185 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
186 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PB,
187 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
188 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PC,
189 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
190 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PD,
191 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro_pci },
192 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PE,
193 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
194 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PF,
195 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
196 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PG,
197 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
198 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PH,
199 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
200 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PI,
201 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
202 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PJ,
203 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
204 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PK,
205 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
206 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PL,
207 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
208 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PM,
209 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
210 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PN,
211 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
212 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PO,
213 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
214 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PP,
215 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro_pci },
216 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PQ,
217 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
218 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PR,
219 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro_pci },
220 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PS,
221 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
222 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PT,
223 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
224 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PU,
225 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
226 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PV,
227 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
228 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PW,
229 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
230 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PX,
231 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro },
232 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RE,
233 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pci },
234 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RF,
235 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 },
236 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RG,
237 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 },
238 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RK,
239 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pci },
240 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RL,
241 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 },
242 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SE,
243 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 },
244 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SF,
245 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pci },
246 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SG,
247 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 },
248 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SH,
249 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 },
250 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SK,
251 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 },
252 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SL,
253 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 },
254 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SM,
255 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 },
256 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SN,
257 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 },
258 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TF,
259 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra },
260 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TL,
261 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra },
262 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TR,
263 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra },
264 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TS,
265 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra },
266 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TT,
267 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra },
268 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TU,
269 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra },
273 MODULE_DEVICE_TABLE(pci, aty128_pci_tbl);
275 static struct pci_driver aty128fb_driver = {
277 .id_table = aty128_pci_tbl,
278 .probe = aty128_probe,
279 .remove = __devexit_p(aty128_remove),
280 .suspend = aty128_pci_suspend,
281 .resume = aty128_pci_resume,
284 /* packed BIOS settings */
289 u8 accelerator_entry;
291 u16 VGA_table_offset;
292 u16 POST_table_offset;
298 u16 PCLK_ref_divider;
302 u16 MCLK_ref_divider;
306 u16 XCLK_ref_divider;
309 } __attribute__ ((packed)) PLL_BLOCK;
310 #endif /* !CONFIG_PPC */
312 /* onboard memory information */
313 struct aty128_meminfo {
327 /* various memory configurations */
328 static const struct aty128_meminfo sdr_128 =
329 { 4, 4, 3, 3, 1, 3, 1, 16, 30, 16, "128-bit SDR SGRAM (1:1)" };
330 static const struct aty128_meminfo sdr_64 =
331 { 4, 8, 3, 3, 1, 3, 1, 17, 46, 17, "64-bit SDR SGRAM (1:1)" };
332 static const struct aty128_meminfo sdr_sgram =
333 { 4, 4, 1, 2, 1, 2, 1, 16, 24, 16, "64-bit SDR SGRAM (2:1)" };
334 static const struct aty128_meminfo ddr_sgram =
335 { 4, 4, 3, 3, 2, 3, 1, 16, 31, 16, "64-bit DDR SGRAM" };
337 static struct fb_fix_screeninfo aty128fb_fix __devinitdata = {
339 .type = FB_TYPE_PACKED_PIXELS,
340 .visual = FB_VISUAL_PSEUDOCOLOR,
344 .accel = FB_ACCEL_ATI_RAGE128,
347 static char *mode_option __devinitdata = NULL;
349 #ifdef CONFIG_PPC_PMAC
350 static int default_vmode __devinitdata = VMODE_1024_768_60;
351 static int default_cmode __devinitdata = CMODE_8;
354 static int default_crt_on __devinitdata = 0;
355 static int default_lcd_on __devinitdata = 1;
362 struct aty128_constants {
374 u32 h_total, h_sync_strt_wid;
375 u32 v_total, v_sync_strt_wid;
377 u32 offset, offset_cntl;
378 u32 xoffset, yoffset;
385 u32 feedback_divider;
389 struct aty128_ddafifo {
394 /* register values for a specific mode */
395 struct aty128fb_par {
396 struct aty128_crtc crtc;
397 struct aty128_pll pll;
398 struct aty128_ddafifo fifo_reg;
400 struct aty128_constants constants; /* PLL and others */
401 void __iomem *regbase; /* remapped mmio */
402 u32 vram_size; /* onboard video ram */
404 const struct aty128_meminfo *mem; /* onboard mem info */
406 struct { int vram; int vram_valid; } mtrr;
408 int blitter_may_be_busy;
409 int fifo_slots; /* free slots in FIFO (64 max) */
413 struct pci_dev *pdev;
414 struct fb_info *next;
418 u8 red[32]; /* see aty128fb_setcolreg */
421 u32 pseudo_palette[16]; /* used for TRUECOLOR */
425 #define round_div(n, d) ((n+(d/2))/d)
427 static int aty128fb_check_var(struct fb_var_screeninfo *var,
428 struct fb_info *info);
429 static int aty128fb_set_par(struct fb_info *info);
430 static int aty128fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
431 u_int transp, struct fb_info *info);
432 static int aty128fb_pan_display(struct fb_var_screeninfo *var,
434 static int aty128fb_blank(int blank, struct fb_info *fb);
435 static int aty128fb_ioctl(struct fb_info *info, u_int cmd, unsigned long arg);
436 static int aty128fb_sync(struct fb_info *info);
442 static int aty128_encode_var(struct fb_var_screeninfo *var,
443 const struct aty128fb_par *par);
444 static int aty128_decode_var(struct fb_var_screeninfo *var,
445 struct aty128fb_par *par);
447 static void __devinit aty128_get_pllinfo(struct aty128fb_par *par,
449 static void __devinit __iomem *aty128_map_ROM(struct pci_dev *pdev, const struct aty128fb_par *par);
451 static void aty128_timings(struct aty128fb_par *par);
452 static void aty128_init_engine(struct aty128fb_par *par);
453 static void aty128_reset_engine(const struct aty128fb_par *par);
454 static void aty128_flush_pixel_cache(const struct aty128fb_par *par);
455 static void do_wait_for_fifo(u16 entries, struct aty128fb_par *par);
456 static void wait_for_fifo(u16 entries, struct aty128fb_par *par);
457 static void wait_for_idle(struct aty128fb_par *par);
458 static u32 depth_to_dst(u32 depth);
460 #define BIOS_IN8(v) (readb(bios + (v)))
461 #define BIOS_IN16(v) (readb(bios + (v)) | \
462 (readb(bios + (v) + 1) << 8))
463 #define BIOS_IN32(v) (readb(bios + (v)) | \
464 (readb(bios + (v) + 1) << 8) | \
465 (readb(bios + (v) + 2) << 16) | \
466 (readb(bios + (v) + 3) << 24))
469 static struct fb_ops aty128fb_ops = {
470 .owner = THIS_MODULE,
471 .fb_check_var = aty128fb_check_var,
472 .fb_set_par = aty128fb_set_par,
473 .fb_setcolreg = aty128fb_setcolreg,
474 .fb_pan_display = aty128fb_pan_display,
475 .fb_blank = aty128fb_blank,
476 .fb_ioctl = aty128fb_ioctl,
477 .fb_sync = aty128fb_sync,
478 .fb_fillrect = cfb_fillrect,
479 .fb_copyarea = cfb_copyarea,
480 .fb_imageblit = cfb_imageblit,
484 * Functions to read from/write to the mmio registers
485 * - endian conversions may possibly be avoided by
486 * using the other register aperture. TODO.
488 static inline u32 _aty_ld_le32(volatile unsigned int regindex,
489 const struct aty128fb_par *par)
491 return readl (par->regbase + regindex);
494 static inline void _aty_st_le32(volatile unsigned int regindex, u32 val,
495 const struct aty128fb_par *par)
497 writel (val, par->regbase + regindex);
500 static inline u8 _aty_ld_8(unsigned int regindex,
501 const struct aty128fb_par *par)
503 return readb (par->regbase + regindex);
506 static inline void _aty_st_8(unsigned int regindex, u8 val,
507 const struct aty128fb_par *par)
509 writeb (val, par->regbase + regindex);
512 #define aty_ld_le32(regindex) _aty_ld_le32(regindex, par)
513 #define aty_st_le32(regindex, val) _aty_st_le32(regindex, val, par)
514 #define aty_ld_8(regindex) _aty_ld_8(regindex, par)
515 #define aty_st_8(regindex, val) _aty_st_8(regindex, val, par)
518 * Functions to read from/write to the pll registers
521 #define aty_ld_pll(pll_index) _aty_ld_pll(pll_index, par)
522 #define aty_st_pll(pll_index, val) _aty_st_pll(pll_index, val, par)
525 static u32 _aty_ld_pll(unsigned int pll_index,
526 const struct aty128fb_par *par)
528 aty_st_8(CLOCK_CNTL_INDEX, pll_index & 0x3F);
529 return aty_ld_le32(CLOCK_CNTL_DATA);
533 static void _aty_st_pll(unsigned int pll_index, u32 val,
534 const struct aty128fb_par *par)
536 aty_st_8(CLOCK_CNTL_INDEX, (pll_index & 0x3F) | PLL_WR_EN);
537 aty_st_le32(CLOCK_CNTL_DATA, val);
541 /* return true when the PLL has completed an atomic update */
542 static int aty_pll_readupdate(const struct aty128fb_par *par)
544 return !(aty_ld_pll(PPLL_REF_DIV) & PPLL_ATOMIC_UPDATE_R);
548 static void aty_pll_wait_readupdate(const struct aty128fb_par *par)
550 unsigned long timeout = jiffies + HZ/100; // should be more than enough
553 while (time_before(jiffies, timeout))
554 if (aty_pll_readupdate(par)) {
559 if (reset) /* reset engine?? */
560 printk(KERN_DEBUG "aty128fb: PLL write timeout!\n");
564 /* tell PLL to update */
565 static void aty_pll_writeupdate(const struct aty128fb_par *par)
567 aty_pll_wait_readupdate(par);
569 aty_st_pll(PPLL_REF_DIV,
570 aty_ld_pll(PPLL_REF_DIV) | PPLL_ATOMIC_UPDATE_W);
574 /* write to the scratch register to test r/w functionality */
575 static int __devinit register_test(const struct aty128fb_par *par)
580 val = aty_ld_le32(BIOS_0_SCRATCH);
582 aty_st_le32(BIOS_0_SCRATCH, 0x55555555);
583 if (aty_ld_le32(BIOS_0_SCRATCH) == 0x55555555) {
584 aty_st_le32(BIOS_0_SCRATCH, 0xAAAAAAAA);
586 if (aty_ld_le32(BIOS_0_SCRATCH) == 0xAAAAAAAA)
590 aty_st_le32(BIOS_0_SCRATCH, val); // restore value
596 * Accelerator engine functions
598 static void do_wait_for_fifo(u16 entries, struct aty128fb_par *par)
603 for (i = 0; i < 2000000; i++) {
604 par->fifo_slots = aty_ld_le32(GUI_STAT) & 0x0fff;
605 if (par->fifo_slots >= entries)
608 aty128_reset_engine(par);
613 static void wait_for_idle(struct aty128fb_par *par)
617 do_wait_for_fifo(64, par);
620 for (i = 0; i < 2000000; i++) {
621 if (!(aty_ld_le32(GUI_STAT) & (1 << 31))) {
622 aty128_flush_pixel_cache(par);
623 par->blitter_may_be_busy = 0;
627 aty128_reset_engine(par);
632 static void wait_for_fifo(u16 entries, struct aty128fb_par *par)
634 if (par->fifo_slots < entries)
635 do_wait_for_fifo(64, par);
636 par->fifo_slots -= entries;
640 static void aty128_flush_pixel_cache(const struct aty128fb_par *par)
645 tmp = aty_ld_le32(PC_NGUI_CTLSTAT);
648 aty_st_le32(PC_NGUI_CTLSTAT, tmp);
650 for (i = 0; i < 2000000; i++)
651 if (!(aty_ld_le32(PC_NGUI_CTLSTAT) & PC_BUSY))
656 static void aty128_reset_engine(const struct aty128fb_par *par)
658 u32 gen_reset_cntl, clock_cntl_index, mclk_cntl;
660 aty128_flush_pixel_cache(par);
662 clock_cntl_index = aty_ld_le32(CLOCK_CNTL_INDEX);
663 mclk_cntl = aty_ld_pll(MCLK_CNTL);
665 aty_st_pll(MCLK_CNTL, mclk_cntl | 0x00030000);
667 gen_reset_cntl = aty_ld_le32(GEN_RESET_CNTL);
668 aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl | SOFT_RESET_GUI);
669 aty_ld_le32(GEN_RESET_CNTL);
670 aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl & ~(SOFT_RESET_GUI));
671 aty_ld_le32(GEN_RESET_CNTL);
673 aty_st_pll(MCLK_CNTL, mclk_cntl);
674 aty_st_le32(CLOCK_CNTL_INDEX, clock_cntl_index);
675 aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl);
677 /* use old pio mode */
678 aty_st_le32(PM4_BUFFER_CNTL, PM4_BUFFER_CNTL_NONPM4);
684 static void aty128_init_engine(struct aty128fb_par *par)
690 /* 3D scaler not spoken here */
691 wait_for_fifo(1, par);
692 aty_st_le32(SCALE_3D_CNTL, 0x00000000);
694 aty128_reset_engine(par);
696 pitch_value = par->crtc.pitch;
697 if (par->crtc.bpp == 24) {
698 pitch_value = pitch_value * 3;
701 wait_for_fifo(4, par);
702 /* setup engine offset registers */
703 aty_st_le32(DEFAULT_OFFSET, 0x00000000);
705 /* setup engine pitch registers */
706 aty_st_le32(DEFAULT_PITCH, pitch_value);
708 /* set the default scissor register to max dimensions */
709 aty_st_le32(DEFAULT_SC_BOTTOM_RIGHT, (0x1FFF << 16) | 0x1FFF);
711 /* set the drawing controls registers */
712 aty_st_le32(DP_GUI_MASTER_CNTL,
713 GMC_SRC_PITCH_OFFSET_DEFAULT |
714 GMC_DST_PITCH_OFFSET_DEFAULT |
715 GMC_SRC_CLIP_DEFAULT |
716 GMC_DST_CLIP_DEFAULT |
717 GMC_BRUSH_SOLIDCOLOR |
718 (depth_to_dst(par->crtc.depth) << 8) |
720 GMC_BYTE_ORDER_MSB_TO_LSB |
721 GMC_DP_CONVERSION_TEMP_6500 |
725 GMC_DST_CLR_CMP_FCN_CLEAR |
729 wait_for_fifo(8, par);
730 /* clear the line drawing registers */
731 aty_st_le32(DST_BRES_ERR, 0);
732 aty_st_le32(DST_BRES_INC, 0);
733 aty_st_le32(DST_BRES_DEC, 0);
735 /* set brush color registers */
736 aty_st_le32(DP_BRUSH_FRGD_CLR, 0xFFFFFFFF); /* white */
737 aty_st_le32(DP_BRUSH_BKGD_CLR, 0x00000000); /* black */
739 /* set source color registers */
740 aty_st_le32(DP_SRC_FRGD_CLR, 0xFFFFFFFF); /* white */
741 aty_st_le32(DP_SRC_BKGD_CLR, 0x00000000); /* black */
743 /* default write mask */
744 aty_st_le32(DP_WRITE_MASK, 0xFFFFFFFF);
746 /* Wait for all the writes to be completed before returning */
751 /* convert depth values to their register representation */
752 static u32 depth_to_dst(u32 depth)
756 else if (depth <= 15)
758 else if (depth == 16)
760 else if (depth <= 24)
762 else if (depth <= 32)
769 * PLL informations retreival
774 static void __iomem * __devinit aty128_map_ROM(const struct aty128fb_par *par, struct pci_dev *dev)
781 /* Fix from ATI for problem with Rage128 hardware not leaving ROM enabled */
783 temp = aty_ld_le32(RAGE128_MPP_TB_CONFIG);
786 aty_st_le32(RAGE128_MPP_TB_CONFIG, temp);
787 temp = aty_ld_le32(RAGE128_MPP_TB_CONFIG);
789 bios = pci_map_rom(dev, &rom_size);
792 printk(KERN_ERR "aty128fb: ROM failed to map\n");
796 /* Very simple test to make sure it appeared */
797 if (BIOS_IN16(0) != 0xaa55) {
798 printk(KERN_DEBUG "aty128fb: Invalid ROM signature %x should "
799 " be 0xaa55\n", BIOS_IN16(0));
803 /* Look for the PCI data to check the ROM type */
804 dptr = BIOS_IN16(0x18);
806 /* Check the PCI data signature. If it's wrong, we still assume a normal x86 ROM
807 * for now, until I've verified this works everywhere. The goal here is more
808 * to phase out Open Firmware images.
810 * Currently, we only look at the first PCI data, we could iteratre and deal with
811 * them all, and we should use fb_bios_start relative to start of image and not
812 * relative start of ROM, but so far, I never found a dual-image ATI card
815 * u32 signature; + 0x00
818 * u16 reserved_1; + 0x08
820 * u8 drevision; + 0x0c
821 * u8 class_hi; + 0x0d
822 * u16 class_lo; + 0x0e
824 * u16 irevision; + 0x12
826 * u8 indicator; + 0x15
827 * u16 reserved_2; + 0x16
830 if (BIOS_IN32(dptr) != (('R' << 24) | ('I' << 16) | ('C' << 8) | 'P')) {
831 printk(KERN_WARNING "aty128fb: PCI DATA signature in ROM incorrect: %08x\n",
835 rom_type = BIOS_IN8(dptr + 0x14);
838 printk(KERN_INFO "aty128fb: Found Intel x86 BIOS ROM Image\n");
841 printk(KERN_INFO "aty128fb: Found Open Firmware ROM Image\n");
844 printk(KERN_INFO "aty128fb: Found HP PA-RISC ROM Image\n");
847 printk(KERN_INFO "aty128fb: Found unknown type %d ROM Image\n", rom_type);
854 pci_unmap_rom(dev, bios);
858 static void __devinit aty128_get_pllinfo(struct aty128fb_par *par, unsigned char __iomem *bios)
860 unsigned int bios_hdr;
861 unsigned int bios_pll;
863 bios_hdr = BIOS_IN16(0x48);
864 bios_pll = BIOS_IN16(bios_hdr + 0x30);
866 par->constants.ppll_max = BIOS_IN32(bios_pll + 0x16);
867 par->constants.ppll_min = BIOS_IN32(bios_pll + 0x12);
868 par->constants.xclk = BIOS_IN16(bios_pll + 0x08);
869 par->constants.ref_divider = BIOS_IN16(bios_pll + 0x10);
870 par->constants.ref_clk = BIOS_IN16(bios_pll + 0x0e);
872 DBG("ppll_max %d ppll_min %d xclk %d ref_divider %d ref clock %d\n",
873 par->constants.ppll_max, par->constants.ppll_min,
874 par->constants.xclk, par->constants.ref_divider,
875 par->constants.ref_clk);
880 static void __iomem * __devinit aty128_find_mem_vbios(struct aty128fb_par *par)
882 /* I simplified this code as we used to miss the signatures in
883 * a lot of case. It's now closer to XFree, we just don't check
884 * for signatures at all... Something better will have to be done
885 * if we end up having conflicts
888 unsigned char __iomem *rom_base = NULL;
890 for (segstart=0x000c0000; segstart<0x000f0000; segstart+=0x00001000) {
891 rom_base = ioremap(segstart, 0x10000);
892 if (rom_base == NULL)
894 if (readb(rom_base) == 0x55 && readb(rom_base + 1) == 0xaa)
902 #endif /* ndef(__sparc__) */
904 /* fill in known card constants if pll_block is not available */
905 static void __devinit aty128_timings(struct aty128fb_par *par)
908 /* instead of a table lookup, assume OF has properly
909 * setup the PLL registers and use their values
910 * to set the XCLK values and reference divider values */
912 u32 x_mpll_ref_fb_div;
915 unsigned PostDivSet[] = { 0, 1, 2, 4, 8, 3, 6, 12 };
918 if (!par->constants.ref_clk)
919 par->constants.ref_clk = 2950;
922 x_mpll_ref_fb_div = aty_ld_pll(X_MPLL_REF_FB_DIV);
923 xclk_cntl = aty_ld_pll(XCLK_CNTL) & 0x7;
924 Nx = (x_mpll_ref_fb_div & 0x00ff00) >> 8;
925 M = x_mpll_ref_fb_div & 0x0000ff;
927 par->constants.xclk = round_div((2 * Nx * par->constants.ref_clk),
928 (M * PostDivSet[xclk_cntl]));
930 par->constants.ref_divider =
931 aty_ld_pll(PPLL_REF_DIV) & PPLL_REF_DIV_MASK;
934 if (!par->constants.ref_divider) {
935 par->constants.ref_divider = 0x3b;
937 aty_st_pll(X_MPLL_REF_FB_DIV, 0x004c4c1e);
938 aty_pll_writeupdate(par);
940 aty_st_pll(PPLL_REF_DIV, par->constants.ref_divider);
941 aty_pll_writeupdate(par);
943 /* from documentation */
944 if (!par->constants.ppll_min)
945 par->constants.ppll_min = 12500;
946 if (!par->constants.ppll_max)
947 par->constants.ppll_max = 25000; /* 23000 on some cards? */
948 if (!par->constants.xclk)
949 par->constants.xclk = 0x1d4d; /* same as mclk */
951 par->constants.fifo_width = 128;
952 par->constants.fifo_depth = 32;
954 switch (aty_ld_le32(MEM_CNTL) & 0x3) {
959 par->mem = &sdr_sgram;
962 par->mem = &ddr_sgram;
965 par->mem = &sdr_sgram;
975 /* Program the CRTC registers */
976 static void aty128_set_crtc(const struct aty128_crtc *crtc,
977 const struct aty128fb_par *par)
979 aty_st_le32(CRTC_GEN_CNTL, crtc->gen_cntl);
980 aty_st_le32(CRTC_H_TOTAL_DISP, crtc->h_total);
981 aty_st_le32(CRTC_H_SYNC_STRT_WID, crtc->h_sync_strt_wid);
982 aty_st_le32(CRTC_V_TOTAL_DISP, crtc->v_total);
983 aty_st_le32(CRTC_V_SYNC_STRT_WID, crtc->v_sync_strt_wid);
984 aty_st_le32(CRTC_PITCH, crtc->pitch);
985 aty_st_le32(CRTC_OFFSET, crtc->offset);
986 aty_st_le32(CRTC_OFFSET_CNTL, crtc->offset_cntl);
987 /* Disable ATOMIC updating. Is this the right place? */
988 aty_st_pll(PPLL_CNTL, aty_ld_pll(PPLL_CNTL) & ~(0x00030000));
992 static int aty128_var_to_crtc(const struct fb_var_screeninfo *var,
993 struct aty128_crtc *crtc,
994 const struct aty128fb_par *par)
996 u32 xres, yres, vxres, vyres, xoffset, yoffset, bpp, dst;
997 u32 left, right, upper, lower, hslen, vslen, sync, vmode;
998 u32 h_total, h_disp, h_sync_strt, h_sync_wid, h_sync_pol;
999 u32 v_total, v_disp, v_sync_strt, v_sync_wid, v_sync_pol, c_sync;
1001 u8 mode_bytpp[7] = { 0, 0, 1, 2, 2, 3, 4 };
1006 vxres = var->xres_virtual;
1007 vyres = var->yres_virtual;
1008 xoffset = var->xoffset;
1009 yoffset = var->yoffset;
1010 bpp = var->bits_per_pixel;
1011 left = var->left_margin;
1012 right = var->right_margin;
1013 upper = var->upper_margin;
1014 lower = var->lower_margin;
1015 hslen = var->hsync_len;
1016 vslen = var->vsync_len;
1023 depth = (var->green.length == 6) ? 16 : 15;
1025 /* check for mode eligibility
1026 * accept only non interlaced modes */
1027 if ((vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED)
1030 /* convert (and round up) and validate */
1031 xres = (xres + 7) & ~7;
1032 xoffset = (xoffset + 7) & ~7;
1034 if (vxres < xres + xoffset)
1035 vxres = xres + xoffset;
1037 if (vyres < yres + yoffset)
1038 vyres = yres + yoffset;
1040 /* convert depth into ATI register depth */
1041 dst = depth_to_dst(depth);
1043 if (dst == -EINVAL) {
1044 printk(KERN_ERR "aty128fb: Invalid depth or RGBA\n");
1048 /* convert register depth to bytes per pixel */
1049 bytpp = mode_bytpp[dst];
1051 /* make sure there is enough video ram for the mode */
1052 if ((u32)(vxres * vyres * bytpp) > par->vram_size) {
1053 printk(KERN_ERR "aty128fb: Not enough memory for mode\n");
1057 h_disp = (xres >> 3) - 1;
1058 h_total = (((xres + right + hslen + left) >> 3) - 1) & 0xFFFFL;
1061 v_total = (yres + upper + vslen + lower - 1) & 0xFFFFL;
1063 /* check to make sure h_total and v_total are in range */
1064 if (((h_total >> 3) - 1) > 0x1ff || (v_total - 1) > 0x7FF) {
1065 printk(KERN_ERR "aty128fb: invalid width ranges\n");
1069 h_sync_wid = (hslen + 7) >> 3;
1070 if (h_sync_wid == 0)
1072 else if (h_sync_wid > 0x3f) /* 0x3f = max hwidth */
1075 h_sync_strt = (h_disp << 3) + right;
1078 if (v_sync_wid == 0)
1080 else if (v_sync_wid > 0x1f) /* 0x1f = max vwidth */
1083 v_sync_strt = v_disp + lower;
1085 h_sync_pol = sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1;
1086 v_sync_pol = sync & FB_SYNC_VERT_HIGH_ACT ? 0 : 1;
1088 c_sync = sync & FB_SYNC_COMP_HIGH_ACT ? (1 << 4) : 0;
1090 crtc->gen_cntl = 0x3000000L | c_sync | (dst << 8);
1092 crtc->h_total = h_total | (h_disp << 16);
1093 crtc->v_total = v_total | (v_disp << 16);
1095 crtc->h_sync_strt_wid = h_sync_strt | (h_sync_wid << 16) |
1097 crtc->v_sync_strt_wid = v_sync_strt | (v_sync_wid << 16) |
1100 crtc->pitch = vxres >> 3;
1104 if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW)
1105 crtc->offset_cntl = 0x00010000;
1107 crtc->offset_cntl = 0;
1109 crtc->vxres = vxres;
1110 crtc->vyres = vyres;
1111 crtc->xoffset = xoffset;
1112 crtc->yoffset = yoffset;
1113 crtc->depth = depth;
1120 static int aty128_pix_width_to_var(int pix_width, struct fb_var_screeninfo *var)
1123 /* fill in pixel info */
1124 var->red.msb_right = 0;
1125 var->green.msb_right = 0;
1126 var->blue.offset = 0;
1127 var->blue.msb_right = 0;
1128 var->transp.offset = 0;
1129 var->transp.length = 0;
1130 var->transp.msb_right = 0;
1131 switch (pix_width) {
1132 case CRTC_PIX_WIDTH_8BPP:
1133 var->bits_per_pixel = 8;
1134 var->red.offset = 0;
1135 var->red.length = 8;
1136 var->green.offset = 0;
1137 var->green.length = 8;
1138 var->blue.length = 8;
1140 case CRTC_PIX_WIDTH_15BPP:
1141 var->bits_per_pixel = 16;
1142 var->red.offset = 10;
1143 var->red.length = 5;
1144 var->green.offset = 5;
1145 var->green.length = 5;
1146 var->blue.length = 5;
1148 case CRTC_PIX_WIDTH_16BPP:
1149 var->bits_per_pixel = 16;
1150 var->red.offset = 11;
1151 var->red.length = 5;
1152 var->green.offset = 5;
1153 var->green.length = 6;
1154 var->blue.length = 5;
1156 case CRTC_PIX_WIDTH_24BPP:
1157 var->bits_per_pixel = 24;
1158 var->red.offset = 16;
1159 var->red.length = 8;
1160 var->green.offset = 8;
1161 var->green.length = 8;
1162 var->blue.length = 8;
1164 case CRTC_PIX_WIDTH_32BPP:
1165 var->bits_per_pixel = 32;
1166 var->red.offset = 16;
1167 var->red.length = 8;
1168 var->green.offset = 8;
1169 var->green.length = 8;
1170 var->blue.length = 8;
1171 var->transp.offset = 24;
1172 var->transp.length = 8;
1175 printk(KERN_ERR "aty128fb: Invalid pixel width\n");
1183 static int aty128_crtc_to_var(const struct aty128_crtc *crtc,
1184 struct fb_var_screeninfo *var)
1186 u32 xres, yres, left, right, upper, lower, hslen, vslen, sync;
1187 u32 h_total, h_disp, h_sync_strt, h_sync_dly, h_sync_wid, h_sync_pol;
1188 u32 v_total, v_disp, v_sync_strt, v_sync_wid, v_sync_pol, c_sync;
1191 /* fun with masking */
1192 h_total = crtc->h_total & 0x1ff;
1193 h_disp = (crtc->h_total >> 16) & 0xff;
1194 h_sync_strt = (crtc->h_sync_strt_wid >> 3) & 0x1ff;
1195 h_sync_dly = crtc->h_sync_strt_wid & 0x7;
1196 h_sync_wid = (crtc->h_sync_strt_wid >> 16) & 0x3f;
1197 h_sync_pol = (crtc->h_sync_strt_wid >> 23) & 0x1;
1198 v_total = crtc->v_total & 0x7ff;
1199 v_disp = (crtc->v_total >> 16) & 0x7ff;
1200 v_sync_strt = crtc->v_sync_strt_wid & 0x7ff;
1201 v_sync_wid = (crtc->v_sync_strt_wid >> 16) & 0x1f;
1202 v_sync_pol = (crtc->v_sync_strt_wid >> 23) & 0x1;
1203 c_sync = crtc->gen_cntl & CRTC_CSYNC_EN ? 1 : 0;
1204 pix_width = crtc->gen_cntl & CRTC_PIX_WIDTH_MASK;
1206 /* do conversions */
1207 xres = (h_disp + 1) << 3;
1209 left = ((h_total - h_sync_strt - h_sync_wid) << 3) - h_sync_dly;
1210 right = ((h_sync_strt - h_disp) << 3) + h_sync_dly;
1211 hslen = h_sync_wid << 3;
1212 upper = v_total - v_sync_strt - v_sync_wid;
1213 lower = v_sync_strt - v_disp;
1215 sync = (h_sync_pol ? 0 : FB_SYNC_HOR_HIGH_ACT) |
1216 (v_sync_pol ? 0 : FB_SYNC_VERT_HIGH_ACT) |
1217 (c_sync ? FB_SYNC_COMP_HIGH_ACT : 0);
1219 aty128_pix_width_to_var(pix_width, var);
1223 var->xres_virtual = crtc->vxres;
1224 var->yres_virtual = crtc->vyres;
1225 var->xoffset = crtc->xoffset;
1226 var->yoffset = crtc->yoffset;
1227 var->left_margin = left;
1228 var->right_margin = right;
1229 var->upper_margin = upper;
1230 var->lower_margin = lower;
1231 var->hsync_len = hslen;
1232 var->vsync_len = vslen;
1234 var->vmode = FB_VMODE_NONINTERLACED;
1239 static void aty128_set_crt_enable(struct aty128fb_par *par, int on)
1242 aty_st_le32(CRTC_EXT_CNTL, aty_ld_le32(CRTC_EXT_CNTL) | CRT_CRTC_ON);
1243 aty_st_le32(DAC_CNTL, (aty_ld_le32(DAC_CNTL) | DAC_PALETTE2_SNOOP_EN));
1245 aty_st_le32(CRTC_EXT_CNTL, aty_ld_le32(CRTC_EXT_CNTL) & ~CRT_CRTC_ON);
1248 static void aty128_set_lcd_enable(struct aty128fb_par *par, int on)
1251 #ifdef CONFIG_FB_ATY128_BACKLIGHT
1252 struct fb_info *info = pci_get_drvdata(par->pdev);
1256 reg = aty_ld_le32(LVDS_GEN_CNTL);
1257 reg |= LVDS_ON | LVDS_EN | LVDS_BLON | LVDS_DIGION;
1258 reg &= ~LVDS_DISPLAY_DIS;
1259 aty_st_le32(LVDS_GEN_CNTL, reg);
1260 #ifdef CONFIG_FB_ATY128_BACKLIGHT
1261 mutex_lock(&info->bl_mutex);
1263 down(&info->bl_dev->sem);
1264 info->bl_dev->props->update_status(info->bl_dev);
1265 up(&info->bl_dev->sem);
1267 mutex_unlock(&info->bl_mutex);
1270 #ifdef CONFIG_FB_ATY128_BACKLIGHT
1271 mutex_lock(&info->bl_mutex);
1273 down(&info->bl_dev->sem);
1274 info->bl_dev->props->brightness = 0;
1275 info->bl_dev->props->power = FB_BLANK_POWERDOWN;
1276 info->bl_dev->props->update_status(info->bl_dev);
1277 up(&info->bl_dev->sem);
1279 mutex_unlock(&info->bl_mutex);
1281 reg = aty_ld_le32(LVDS_GEN_CNTL);
1282 reg |= LVDS_DISPLAY_DIS;
1283 aty_st_le32(LVDS_GEN_CNTL, reg);
1285 reg &= ~(LVDS_ON /*| LVDS_EN*/);
1286 aty_st_le32(LVDS_GEN_CNTL, reg);
1290 static void aty128_set_pll(struct aty128_pll *pll, const struct aty128fb_par *par)
1294 unsigned char post_conv[] = /* register values for post dividers */
1295 { 2, 0, 1, 4, 2, 2, 6, 2, 3, 2, 2, 2, 7 };
1297 /* select PPLL_DIV_3 */
1298 aty_st_le32(CLOCK_CNTL_INDEX, aty_ld_le32(CLOCK_CNTL_INDEX) | (3 << 8));
1301 aty_st_pll(PPLL_CNTL,
1302 aty_ld_pll(PPLL_CNTL) | PPLL_RESET | PPLL_ATOMIC_UPDATE_EN);
1304 /* write the reference divider */
1305 aty_pll_wait_readupdate(par);
1306 aty_st_pll(PPLL_REF_DIV, par->constants.ref_divider & 0x3ff);
1307 aty_pll_writeupdate(par);
1309 div3 = aty_ld_pll(PPLL_DIV_3);
1310 div3 &= ~PPLL_FB3_DIV_MASK;
1311 div3 |= pll->feedback_divider;
1312 div3 &= ~PPLL_POST3_DIV_MASK;
1313 div3 |= post_conv[pll->post_divider] << 16;
1315 /* write feedback and post dividers */
1316 aty_pll_wait_readupdate(par);
1317 aty_st_pll(PPLL_DIV_3, div3);
1318 aty_pll_writeupdate(par);
1320 aty_pll_wait_readupdate(par);
1321 aty_st_pll(HTOTAL_CNTL, 0); /* no horiz crtc adjustment */
1322 aty_pll_writeupdate(par);
1324 /* clear the reset, just in case */
1325 aty_st_pll(PPLL_CNTL, aty_ld_pll(PPLL_CNTL) & ~PPLL_RESET);
1329 static int aty128_var_to_pll(u32 period_in_ps, struct aty128_pll *pll,
1330 const struct aty128fb_par *par)
1332 const struct aty128_constants c = par->constants;
1333 unsigned char post_dividers[] = {1,2,4,8,3,6,12};
1335 u32 vclk; /* in .01 MHz */
1339 vclk = 100000000 / period_in_ps; /* convert units to 10 kHz */
1341 /* adjust pixel clock if necessary */
1342 if (vclk > c.ppll_max)
1344 if (vclk * 12 < c.ppll_min)
1345 vclk = c.ppll_min/12;
1347 /* now, find an acceptable divider */
1348 for (i = 0; i < sizeof(post_dividers); i++) {
1349 output_freq = post_dividers[i] * vclk;
1350 if (output_freq >= c.ppll_min && output_freq <= c.ppll_max) {
1351 pll->post_divider = post_dividers[i];
1356 /* calculate feedback divider */
1357 n = c.ref_divider * output_freq;
1360 pll->feedback_divider = round_div(n, d);
1363 DBG("post %d feedback %d vlck %d output %d ref_divider %d "
1364 "vclk_per: %d\n", pll->post_divider,
1365 pll->feedback_divider, vclk, output_freq,
1366 c.ref_divider, period_in_ps);
1372 static int aty128_pll_to_var(const struct aty128_pll *pll, struct fb_var_screeninfo *var)
1374 var->pixclock = 100000000 / pll->vclk;
1380 static void aty128_set_fifo(const struct aty128_ddafifo *dsp,
1381 const struct aty128fb_par *par)
1383 aty_st_le32(DDA_CONFIG, dsp->dda_config);
1384 aty_st_le32(DDA_ON_OFF, dsp->dda_on_off);
1388 static int aty128_ddafifo(struct aty128_ddafifo *dsp,
1389 const struct aty128_pll *pll,
1391 const struct aty128fb_par *par)
1393 const struct aty128_meminfo *m = par->mem;
1394 u32 xclk = par->constants.xclk;
1395 u32 fifo_width = par->constants.fifo_width;
1396 u32 fifo_depth = par->constants.fifo_depth;
1397 s32 x, b, p, ron, roff;
1400 /* round up to multiple of 8 */
1401 bpp = (depth+7) & ~7;
1403 n = xclk * fifo_width;
1404 d = pll->vclk * bpp;
1405 x = round_div(n, d);
1408 3 * ((m->Trcd - 2 > 0) ? m->Trcd - 2 : 0) +
1427 x = round_div(n, d);
1428 roff = x * (fifo_depth - 4);
1430 if ((ron + m->Rloop) >= roff) {
1431 printk(KERN_ERR "aty128fb: Mode out of range!\n");
1435 DBG("p: %x rloop: %x x: %x ron: %x roff: %x\n",
1436 p, m->Rloop, x, ron, roff);
1438 dsp->dda_config = p << 16 | m->Rloop << 20 | x;
1439 dsp->dda_on_off = ron << 16 | roff;
1446 * This actually sets the video mode.
1448 static int aty128fb_set_par(struct fb_info *info)
1450 struct aty128fb_par *par = info->par;
1454 if ((err = aty128_decode_var(&info->var, par)) != 0)
1457 if (par->blitter_may_be_busy)
1460 /* clear all registers that may interfere with mode setting */
1461 aty_st_le32(OVR_CLR, 0);
1462 aty_st_le32(OVR_WID_LEFT_RIGHT, 0);
1463 aty_st_le32(OVR_WID_TOP_BOTTOM, 0);
1464 aty_st_le32(OV0_SCALE_CNTL, 0);
1465 aty_st_le32(MPP_TB_CONFIG, 0);
1466 aty_st_le32(MPP_GP_CONFIG, 0);
1467 aty_st_le32(SUBPIC_CNTL, 0);
1468 aty_st_le32(VIPH_CONTROL, 0);
1469 aty_st_le32(I2C_CNTL_1, 0); /* turn off i2c */
1470 aty_st_le32(GEN_INT_CNTL, 0); /* turn off interrupts */
1471 aty_st_le32(CAP0_TRIG_CNTL, 0);
1472 aty_st_le32(CAP1_TRIG_CNTL, 0);
1474 aty_st_8(CRTC_EXT_CNTL + 1, 4); /* turn video off */
1476 aty128_set_crtc(&par->crtc, par);
1477 aty128_set_pll(&par->pll, par);
1478 aty128_set_fifo(&par->fifo_reg, par);
1480 config = aty_ld_le32(CONFIG_CNTL) & ~3;
1482 #if defined(__BIG_ENDIAN)
1483 if (par->crtc.bpp == 32)
1484 config |= 2; /* make aperture do 32 bit swapping */
1485 else if (par->crtc.bpp == 16)
1486 config |= 1; /* make aperture do 16 bit swapping */
1489 aty_st_le32(CONFIG_CNTL, config);
1490 aty_st_8(CRTC_EXT_CNTL + 1, 0); /* turn the video back on */
1492 info->fix.line_length = (par->crtc.vxres * par->crtc.bpp) >> 3;
1493 info->fix.visual = par->crtc.bpp == 8 ? FB_VISUAL_PSEUDOCOLOR
1494 : FB_VISUAL_DIRECTCOLOR;
1496 if (par->chip_gen == rage_M3) {
1497 aty128_set_crt_enable(par, par->crt_on);
1498 aty128_set_lcd_enable(par, par->lcd_on);
1500 if (par->accel_flags & FB_ACCELF_TEXT)
1501 aty128_init_engine(par);
1503 #ifdef CONFIG_BOOTX_TEXT
1504 btext_update_display(info->fix.smem_start,
1505 (((par->crtc.h_total>>16) & 0xff)+1)*8,
1506 ((par->crtc.v_total>>16) & 0x7ff)+1,
1508 par->crtc.vxres*par->crtc.bpp/8);
1509 #endif /* CONFIG_BOOTX_TEXT */
1515 * encode/decode the User Defined Part of the Display
1518 static int aty128_decode_var(struct fb_var_screeninfo *var, struct aty128fb_par *par)
1521 struct aty128_crtc crtc;
1522 struct aty128_pll pll;
1523 struct aty128_ddafifo fifo_reg;
1525 if ((err = aty128_var_to_crtc(var, &crtc, par)))
1528 if ((err = aty128_var_to_pll(var->pixclock, &pll, par)))
1531 if ((err = aty128_ddafifo(&fifo_reg, &pll, crtc.depth, par)))
1536 par->fifo_reg = fifo_reg;
1537 par->accel_flags = var->accel_flags;
1543 static int aty128_encode_var(struct fb_var_screeninfo *var,
1544 const struct aty128fb_par *par)
1548 if ((err = aty128_crtc_to_var(&par->crtc, var)))
1551 if ((err = aty128_pll_to_var(&par->pll, var)))
1559 var->accel_flags = par->accel_flags;
1565 static int aty128fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1567 struct aty128fb_par par;
1570 par = *(struct aty128fb_par *)info->par;
1571 if ((err = aty128_decode_var(var, &par)) != 0)
1573 aty128_encode_var(var, &par);
1579 * Pan or Wrap the Display
1581 static int aty128fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *fb)
1583 struct aty128fb_par *par = fb->par;
1584 u32 xoffset, yoffset;
1588 xres = (((par->crtc.h_total >> 16) & 0xff) + 1) << 3;
1589 yres = ((par->crtc.v_total >> 16) & 0x7ff) + 1;
1591 xoffset = (var->xoffset +7) & ~7;
1592 yoffset = var->yoffset;
1594 if (xoffset+xres > par->crtc.vxres || yoffset+yres > par->crtc.vyres)
1597 par->crtc.xoffset = xoffset;
1598 par->crtc.yoffset = yoffset;
1600 offset = ((yoffset * par->crtc.vxres + xoffset)*(par->crtc.bpp >> 3)) & ~7;
1602 if (par->crtc.bpp == 24)
1603 offset += 8 * (offset % 3); /* Must be multiple of 8 and 3 */
1605 aty_st_le32(CRTC_OFFSET, offset);
1612 * Helper function to store a single palette register
1614 static void aty128_st_pal(u_int regno, u_int red, u_int green, u_int blue,
1615 struct aty128fb_par *par)
1617 if (par->chip_gen == rage_M3) {
1619 /* Note: For now, on M3, we set palette on both heads, which may
1620 * be useless. Can someone with a M3 check this ?
1622 * This code would still be useful if using the second CRTC to
1626 aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) | DAC_PALETTE_ACCESS_CNTL);
1627 aty_st_8(PALETTE_INDEX, regno);
1628 aty_st_le32(PALETTE_DATA, (red<<16)|(green<<8)|blue);
1630 aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) & ~DAC_PALETTE_ACCESS_CNTL);
1633 aty_st_8(PALETTE_INDEX, regno);
1634 aty_st_le32(PALETTE_DATA, (red<<16)|(green<<8)|blue);
1637 static int aty128fb_sync(struct fb_info *info)
1639 struct aty128fb_par *par = info->par;
1641 if (par->blitter_may_be_busy)
1647 static int __devinit aty128fb_setup(char *options)
1651 if (!options || !*options)
1654 while ((this_opt = strsep(&options, ",")) != NULL) {
1655 if (!strncmp(this_opt, "lcd:", 4)) {
1656 default_lcd_on = simple_strtoul(this_opt+4, NULL, 0);
1658 } else if (!strncmp(this_opt, "crt:", 4)) {
1659 default_crt_on = simple_strtoul(this_opt+4, NULL, 0);
1663 if(!strncmp(this_opt, "nomtrr", 6)) {
1668 #ifdef CONFIG_PPC_PMAC
1669 /* vmode and cmode deprecated */
1670 if (!strncmp(this_opt, "vmode:", 6)) {
1671 unsigned int vmode = simple_strtoul(this_opt+6, NULL, 0);
1672 if (vmode > 0 && vmode <= VMODE_MAX)
1673 default_vmode = vmode;
1675 } else if (!strncmp(this_opt, "cmode:", 6)) {
1676 unsigned int cmode = simple_strtoul(this_opt+6, NULL, 0);
1680 default_cmode = CMODE_8;
1684 default_cmode = CMODE_16;
1688 default_cmode = CMODE_32;
1693 #endif /* CONFIG_PPC_PMAC */
1694 mode_option = this_opt;
1701 #ifdef CONFIG_FB_ATY128_BACKLIGHT
1702 #define MAX_LEVEL 0xFF
1704 static struct backlight_properties aty128_bl_data;
1706 static int aty128_bl_get_level_brightness(struct aty128fb_par *par,
1709 struct fb_info *info = pci_get_drvdata(par->pdev);
1712 /* Get and convert the value */
1713 mutex_lock(&info->bl_mutex);
1714 atylevel = MAX_LEVEL -
1715 (info->bl_curve[level] * FB_BACKLIGHT_MAX / MAX_LEVEL);
1716 mutex_unlock(&info->bl_mutex);
1720 else if (atylevel > MAX_LEVEL)
1721 atylevel = MAX_LEVEL;
1726 /* We turn off the LCD completely instead of just dimming the backlight.
1727 * This provides greater power saving and the display is useless without
1730 #define BACKLIGHT_LVDS_OFF
1731 /* That one prevents proper CRT output with LCD off */
1732 #undef BACKLIGHT_DAC_OFF
1734 static int aty128_bl_update_status(struct backlight_device *bd)
1736 struct aty128fb_par *par = class_get_devdata(&bd->class_dev);
1737 unsigned int reg = aty_ld_le32(LVDS_GEN_CNTL);
1740 if (bd->props->power != FB_BLANK_UNBLANK ||
1741 bd->props->fb_blank != FB_BLANK_UNBLANK ||
1745 level = bd->props->brightness;
1747 reg |= LVDS_BL_MOD_EN | LVDS_BLON;
1750 if (!(reg & LVDS_ON)) {
1752 aty_st_le32(LVDS_GEN_CNTL, reg);
1753 aty_ld_le32(LVDS_GEN_CNTL);
1756 aty_st_le32(LVDS_GEN_CNTL, reg);
1758 reg &= ~LVDS_BL_MOD_LEVEL_MASK;
1759 reg |= (aty128_bl_get_level_brightness(par, level) << LVDS_BL_MOD_LEVEL_SHIFT);
1760 #ifdef BACKLIGHT_LVDS_OFF
1761 reg |= LVDS_ON | LVDS_EN;
1762 reg &= ~LVDS_DISPLAY_DIS;
1764 aty_st_le32(LVDS_GEN_CNTL, reg);
1765 #ifdef BACKLIGHT_DAC_OFF
1766 aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) & (~DAC_PDWN));
1769 reg &= ~LVDS_BL_MOD_LEVEL_MASK;
1770 reg |= (aty128_bl_get_level_brightness(par, 0) << LVDS_BL_MOD_LEVEL_SHIFT);
1771 #ifdef BACKLIGHT_LVDS_OFF
1772 reg |= LVDS_DISPLAY_DIS;
1773 aty_st_le32(LVDS_GEN_CNTL, reg);
1774 aty_ld_le32(LVDS_GEN_CNTL);
1776 reg &= ~(LVDS_ON | LVDS_EN | LVDS_BLON | LVDS_DIGION);
1778 aty_st_le32(LVDS_GEN_CNTL, reg);
1779 #ifdef BACKLIGHT_DAC_OFF
1780 aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) | DAC_PDWN);
1787 static int aty128_bl_get_brightness(struct backlight_device *bd)
1789 return bd->props->brightness;
1792 static struct backlight_properties aty128_bl_data = {
1793 .owner = THIS_MODULE,
1794 .get_brightness = aty128_bl_get_brightness,
1795 .update_status = aty128_bl_update_status,
1796 .max_brightness = (FB_BACKLIGHT_LEVELS - 1),
1799 static void aty128_bl_init(struct aty128fb_par *par)
1801 struct fb_info *info = pci_get_drvdata(par->pdev);
1802 struct backlight_device *bd;
1805 /* Could be extended to Rage128Pro LVDS output too */
1806 if (par->chip_gen != rage_M3)
1809 #ifdef CONFIG_PMAC_BACKLIGHT
1810 if (!pmac_has_backlight_type("ati"))
1814 snprintf(name, sizeof(name), "aty128bl%d", info->node);
1816 bd = backlight_device_register(name, par, &aty128_bl_data);
1818 info->bl_dev = NULL;
1819 printk("aty128: Backlight registration failed\n");
1823 mutex_lock(&info->bl_mutex);
1825 fb_bl_default_curve(info, 0,
1826 63 * FB_BACKLIGHT_MAX / MAX_LEVEL,
1827 219 * FB_BACKLIGHT_MAX / MAX_LEVEL);
1828 mutex_unlock(&info->bl_mutex);
1831 bd->props->brightness = aty128_bl_data.max_brightness;
1832 bd->props->power = FB_BLANK_UNBLANK;
1833 bd->props->update_status(bd);
1836 #ifdef CONFIG_PMAC_BACKLIGHT
1837 mutex_lock(&pmac_backlight_mutex);
1838 if (!pmac_backlight)
1839 pmac_backlight = bd;
1840 mutex_unlock(&pmac_backlight_mutex);
1843 printk("aty128: Backlight initialized (%s)\n", name);
1851 static void aty128_bl_exit(struct aty128fb_par *par)
1853 struct fb_info *info = pci_get_drvdata(par->pdev);
1855 #ifdef CONFIG_PMAC_BACKLIGHT
1856 mutex_lock(&pmac_backlight_mutex);
1859 mutex_lock(&info->bl_mutex);
1861 #ifdef CONFIG_PMAC_BACKLIGHT
1862 if (pmac_backlight == info->bl_dev)
1863 pmac_backlight = NULL;
1866 backlight_device_unregister(info->bl_dev);
1867 info->bl_dev = NULL;
1869 printk("aty128: Backlight unloaded\n");
1871 mutex_unlock(&info->bl_mutex);
1873 #ifdef CONFIG_PMAC_BACKLIGHT
1874 mutex_unlock(&pmac_backlight_mutex);
1877 #endif /* CONFIG_FB_ATY128_BACKLIGHT */
1883 #ifdef CONFIG_PPC_PMAC
1884 static void aty128_early_resume(void *data)
1886 struct aty128fb_par *par = data;
1888 if (try_acquire_console_sem())
1890 aty128_do_resume(par->pdev);
1891 release_console_sem();
1893 #endif /* CONFIG_PPC_PMAC */
1895 static int __devinit aty128_init(struct pci_dev *pdev, const struct pci_device_id *ent)
1897 struct fb_info *info = pci_get_drvdata(pdev);
1898 struct aty128fb_par *par = info->par;
1899 struct fb_var_screeninfo var;
1900 char video_card[DEVICE_NAME_SIZE];
1904 if (!par->vram_size) /* may have already been probed */
1905 par->vram_size = aty_ld_le32(CONFIG_MEMSIZE) & 0x03FFFFFF;
1907 /* Get the chip revision */
1908 chip_rev = (aty_ld_le32(CONFIG_CNTL) >> 16) & 0x1F;
1910 strcpy(video_card, "Rage128 XX ");
1911 video_card[8] = ent->device >> 8;
1912 video_card[9] = ent->device & 0xFF;
1914 /* range check to make sure */
1915 if (ent->driver_data < ARRAY_SIZE(r128_family))
1916 strncat(video_card, r128_family[ent->driver_data], sizeof(video_card));
1918 printk(KERN_INFO "aty128fb: %s [chip rev 0x%x] ", video_card, chip_rev);
1920 if (par->vram_size % (1024 * 1024) == 0)
1921 printk("%dM %s\n", par->vram_size / (1024*1024), par->mem->name);
1923 printk("%dk %s\n", par->vram_size / 1024, par->mem->name);
1925 par->chip_gen = ent->driver_data;
1928 info->fbops = &aty128fb_ops;
1929 info->flags = FBINFO_FLAG_DEFAULT;
1931 par->lcd_on = default_lcd_on;
1932 par->crt_on = default_crt_on;
1935 #ifdef CONFIG_PPC_PMAC
1936 if (machine_is(powermac)) {
1937 /* Indicate sleep capability */
1938 if (par->chip_gen == rage_M3) {
1939 pmac_call_feature(PMAC_FTR_DEVICE_CAN_WAKE, NULL, 0, 1);
1940 pmac_set_early_video_resume(aty128_early_resume, par);
1943 /* Find default mode */
1945 if (!mac_find_mode(&var, info, mode_option, 8))
1948 if (default_vmode <= 0 || default_vmode > VMODE_MAX)
1949 default_vmode = VMODE_1024_768_60;
1951 /* iMacs need that resolution
1952 * PowerMac2,1 first r128 iMacs
1953 * PowerMac2,2 summer 2000 iMacs
1954 * PowerMac4,1 january 2001 iMacs "flower power"
1956 if (machine_is_compatible("PowerMac2,1") ||
1957 machine_is_compatible("PowerMac2,2") ||
1958 machine_is_compatible("PowerMac4,1"))
1959 default_vmode = VMODE_1024_768_75;
1962 if (machine_is_compatible("PowerBook2,2"))
1963 default_vmode = VMODE_800_600_60;
1965 /* PowerBook Firewire (Pismo), iBook Dual USB */
1966 if (machine_is_compatible("PowerBook3,1") ||
1967 machine_is_compatible("PowerBook4,1"))
1968 default_vmode = VMODE_1024_768_60;
1970 /* PowerBook Titanium */
1971 if (machine_is_compatible("PowerBook3,2"))
1972 default_vmode = VMODE_1152_768_60;
1974 if (default_cmode > 16)
1975 default_cmode = CMODE_32;
1976 else if (default_cmode > 8)
1977 default_cmode = CMODE_16;
1979 default_cmode = CMODE_8;
1981 if (mac_vmode_to_var(default_vmode, default_cmode, &var))
1985 #endif /* CONFIG_PPC_PMAC */
1988 if (fb_find_mode(&var, info, mode_option, NULL,
1989 0, &defaultmode, 8) == 0)
1993 var.accel_flags &= ~FB_ACCELF_TEXT;
1994 // var.accel_flags |= FB_ACCELF_TEXT;/* FIXME Will add accel later */
1996 if (aty128fb_check_var(&var, info)) {
1997 printk(KERN_ERR "aty128fb: Cannot set default mode.\n");
2001 /* setup the DAC the way we like it */
2002 dac = aty_ld_le32(DAC_CNTL);
2003 dac |= (DAC_8BIT_EN | DAC_RANGE_CNTL);
2005 if (par->chip_gen == rage_M3)
2006 dac |= DAC_PALETTE2_SNOOP_EN;
2007 aty_st_le32(DAC_CNTL, dac);
2009 /* turn off bus mastering, just in case */
2010 aty_st_le32(BUS_CNTL, aty_ld_le32(BUS_CNTL) | BUS_MASTER_DIS);
2013 fb_alloc_cmap(&info->cmap, 256, 0);
2015 var.activate = FB_ACTIVATE_NOW;
2017 aty128_init_engine(par);
2019 if (register_framebuffer(info) < 0)
2022 par->pm_reg = pci_find_capability(pdev, PCI_CAP_ID_PM);
2025 par->lock_blank = 0;
2027 #ifdef CONFIG_FB_ATY128_BACKLIGHT
2028 aty128_bl_init(par);
2031 printk(KERN_INFO "fb%d: %s frame buffer device on %s\n",
2032 info->node, info->fix.id, video_card);
2034 return 1; /* success! */
2038 /* register a card ++ajoshi */
2039 static int __devinit aty128_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2041 unsigned long fb_addr, reg_addr;
2042 struct aty128fb_par *par;
2043 struct fb_info *info;
2046 void __iomem *bios = NULL;
2049 /* Enable device in PCI config */
2050 if ((err = pci_enable_device(pdev))) {
2051 printk(KERN_ERR "aty128fb: Cannot enable PCI device: %d\n",
2056 fb_addr = pci_resource_start(pdev, 0);
2057 if (!request_mem_region(fb_addr, pci_resource_len(pdev, 0),
2059 printk(KERN_ERR "aty128fb: cannot reserve frame "
2064 reg_addr = pci_resource_start(pdev, 2);
2065 if (!request_mem_region(reg_addr, pci_resource_len(pdev, 2),
2067 printk(KERN_ERR "aty128fb: cannot reserve MMIO region\n");
2071 /* We have the resources. Now virtualize them */
2072 info = framebuffer_alloc(sizeof(struct aty128fb_par), &pdev->dev);
2074 printk(KERN_ERR "aty128fb: can't alloc fb_info_aty128\n");
2079 info->pseudo_palette = par->pseudo_palette;
2080 info->fix = aty128fb_fix;
2082 /* Virtualize mmio region */
2083 info->fix.mmio_start = reg_addr;
2084 par->regbase = ioremap(reg_addr, pci_resource_len(pdev, 2));
2088 /* Grab memory size from the card */
2089 // How does this relate to the resource length from the PCI hardware?
2090 par->vram_size = aty_ld_le32(CONFIG_MEMSIZE) & 0x03FFFFFF;
2092 /* Virtualize the framebuffer */
2093 info->screen_base = ioremap(fb_addr, par->vram_size);
2094 if (!info->screen_base)
2097 /* Set up info->fix */
2098 info->fix = aty128fb_fix;
2099 info->fix.smem_start = fb_addr;
2100 info->fix.smem_len = par->vram_size;
2101 info->fix.mmio_start = reg_addr;
2103 /* If we can't test scratch registers, something is seriously wrong */
2104 if (!register_test(par)) {
2105 printk(KERN_ERR "aty128fb: Can't write to video register!\n");
2110 bios = aty128_map_ROM(par, pdev);
2113 bios = aty128_find_mem_vbios(par);
2116 printk(KERN_INFO "aty128fb: BIOS not located, guessing timings.\n");
2118 printk(KERN_INFO "aty128fb: Rage128 BIOS located\n");
2119 aty128_get_pllinfo(par, bios);
2120 pci_unmap_rom(pdev, bios);
2122 #endif /* __sparc__ */
2124 aty128_timings(par);
2125 pci_set_drvdata(pdev, info);
2127 if (!aty128_init(pdev, ent))
2132 par->mtrr.vram = mtrr_add(info->fix.smem_start,
2133 par->vram_size, MTRR_TYPE_WRCOMB, 1);
2134 par->mtrr.vram_valid = 1;
2135 /* let there be speed */
2136 printk(KERN_INFO "aty128fb: Rage128 MTRR set to ON\n");
2138 #endif /* CONFIG_MTRR */
2142 iounmap(info->screen_base);
2144 iounmap(par->regbase);
2146 framebuffer_release(info);
2148 release_mem_region(pci_resource_start(pdev, 2),
2149 pci_resource_len(pdev, 2));
2151 release_mem_region(pci_resource_start(pdev, 0),
2152 pci_resource_len(pdev, 0));
2156 static void __devexit aty128_remove(struct pci_dev *pdev)
2158 struct fb_info *info = pci_get_drvdata(pdev);
2159 struct aty128fb_par *par;
2166 #ifdef CONFIG_FB_ATY128_BACKLIGHT
2167 aty128_bl_exit(par);
2170 unregister_framebuffer(info);
2172 if (par->mtrr.vram_valid)
2173 mtrr_del(par->mtrr.vram, info->fix.smem_start,
2175 #endif /* CONFIG_MTRR */
2176 iounmap(par->regbase);
2177 iounmap(info->screen_base);
2179 release_mem_region(pci_resource_start(pdev, 0),
2180 pci_resource_len(pdev, 0));
2181 release_mem_region(pci_resource_start(pdev, 2),
2182 pci_resource_len(pdev, 2));
2183 framebuffer_release(info);
2185 #endif /* CONFIG_PCI */
2190 * Blank the display.
2192 static int aty128fb_blank(int blank, struct fb_info *fb)
2194 struct aty128fb_par *par = fb->par;
2197 if (par->lock_blank || par->asleep)
2200 #ifdef CONFIG_FB_ATY128_BACKLIGHT
2201 if (machine_is(powermac) && blank) {
2202 down(&fb->bl_dev->sem);
2203 fb->bl_dev->props->power = FB_BLANK_POWERDOWN;
2204 fb->bl_dev->props->update_status(fb->bl_dev);
2205 up(&fb->bl_dev->sem);
2209 if (blank & FB_BLANK_VSYNC_SUSPEND)
2211 if (blank & FB_BLANK_HSYNC_SUSPEND)
2213 if (blank & FB_BLANK_POWERDOWN)
2216 aty_st_8(CRTC_EXT_CNTL+1, state);
2218 if (par->chip_gen == rage_M3) {
2219 aty128_set_crt_enable(par, par->crt_on && !blank);
2220 aty128_set_lcd_enable(par, par->lcd_on && !blank);
2222 #ifdef CONFIG_FB_ATY128_BACKLIGHT
2223 if (machine_is(powermac) && !blank) {
2224 down(&fb->bl_dev->sem);
2225 fb->bl_dev->props->power = FB_BLANK_UNBLANK;
2226 fb->bl_dev->props->update_status(fb->bl_dev);
2227 up(&fb->bl_dev->sem);
2234 * Set a single color register. The values supplied are already
2235 * rounded down to the hardware's capabilities (according to the
2236 * entries in the var structure). Return != 0 for invalid regno.
2238 static int aty128fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
2239 u_int transp, struct fb_info *info)
2241 struct aty128fb_par *par = info->par;
2244 || (par->crtc.depth == 16 && regno > 63)
2245 || (par->crtc.depth == 15 && regno > 31))
2254 u32 *pal = info->pseudo_palette;
2256 switch (par->crtc.depth) {
2258 pal[regno] = (regno << 10) | (regno << 5) | regno;
2261 pal[regno] = (regno << 11) | (regno << 6) | regno;
2264 pal[regno] = (regno << 16) | (regno << 8) | regno;
2267 i = (regno << 8) | regno;
2268 pal[regno] = (i << 16) | i;
2273 if (par->crtc.depth == 16 && regno > 0) {
2275 * With the 5-6-5 split of bits for RGB at 16 bits/pixel, we
2276 * have 32 slots for R and B values but 64 slots for G values.
2277 * Thus the R and B values go in one slot but the G value
2278 * goes in a different slot, and we have to avoid disturbing
2279 * the other fields in the slots we touch.
2281 par->green[regno] = green;
2283 par->red[regno] = red;
2284 par->blue[regno] = blue;
2285 aty128_st_pal(regno * 8, red, par->green[regno*2],
2288 red = par->red[regno/2];
2289 blue = par->blue[regno/2];
2291 } else if (par->crtc.bpp == 16)
2293 aty128_st_pal(regno, red, green, blue, par);
2298 #define ATY_MIRROR_LCD_ON 0x00000001
2299 #define ATY_MIRROR_CRT_ON 0x00000002
2301 /* out param: u32* backlight value: 0 to 15 */
2302 #define FBIO_ATY128_GET_MIRROR _IOR('@', 1, __u32)
2303 /* in param: u32* backlight value: 0 to 15 */
2304 #define FBIO_ATY128_SET_MIRROR _IOW('@', 2, __u32)
2306 static int aty128fb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
2308 struct aty128fb_par *par = info->par;
2313 case FBIO_ATY128_SET_MIRROR:
2314 if (par->chip_gen != rage_M3)
2316 rc = get_user(value, (__u32 __user *)arg);
2319 par->lcd_on = (value & 0x01) != 0;
2320 par->crt_on = (value & 0x02) != 0;
2321 if (!par->crt_on && !par->lcd_on)
2323 aty128_set_crt_enable(par, par->crt_on);
2324 aty128_set_lcd_enable(par, par->lcd_on);
2326 case FBIO_ATY128_GET_MIRROR:
2327 if (par->chip_gen != rage_M3)
2329 value = (par->crt_on << 1) | par->lcd_on;
2330 return put_user(value, (__u32 __user *)arg);
2337 * Accelerated functions
2340 static inline void aty128_rectcopy(int srcx, int srcy, int dstx, int dsty,
2341 u_int width, u_int height,
2342 struct fb_info_aty128 *par)
2344 u32 save_dp_datatype, save_dp_cntl, dstval;
2346 if (!width || !height)
2349 dstval = depth_to_dst(par->current_par.crtc.depth);
2350 if (dstval == DST_24BPP) {
2354 } else if (dstval == -EINVAL) {
2355 printk("aty128fb: invalid depth or RGBA\n");
2359 wait_for_fifo(2, par);
2360 save_dp_datatype = aty_ld_le32(DP_DATATYPE);
2361 save_dp_cntl = aty_ld_le32(DP_CNTL);
2363 wait_for_fifo(6, par);
2364 aty_st_le32(SRC_Y_X, (srcy << 16) | srcx);
2365 aty_st_le32(DP_MIX, ROP3_SRCCOPY | DP_SRC_RECT);
2366 aty_st_le32(DP_CNTL, DST_X_LEFT_TO_RIGHT | DST_Y_TOP_TO_BOTTOM);
2367 aty_st_le32(DP_DATATYPE, save_dp_datatype | dstval | SRC_DSTCOLOR);
2369 aty_st_le32(DST_Y_X, (dsty << 16) | dstx);
2370 aty_st_le32(DST_HEIGHT_WIDTH, (height << 16) | width);
2372 par->blitter_may_be_busy = 1;
2374 wait_for_fifo(2, par);
2375 aty_st_le32(DP_DATATYPE, save_dp_datatype);
2376 aty_st_le32(DP_CNTL, save_dp_cntl);
2381 * Text mode accelerated functions
2384 static void fbcon_aty128_bmove(struct display *p, int sy, int sx, int dy, int dx,
2385 int height, int width)
2388 sy *= fontheight(p);
2390 dy *= fontheight(p);
2391 width *= fontwidth(p);
2392 height *= fontheight(p);
2394 aty128_rectcopy(sx, sy, dx, dy, width, height,
2395 (struct fb_info_aty128 *)p->fb_info);
2399 static void aty128_set_suspend(struct aty128fb_par *par, int suspend)
2403 struct pci_dev *pdev = par->pdev;
2408 /* Set the chip into the appropriate suspend mode (we use D2,
2409 * D3 would require a complete re-initialisation of the chip,
2410 * including PCI config registers, clocks, AGP configuration, ...)
2413 /* Make sure CRTC2 is reset. Remove that the day we decide to
2414 * actually use CRTC2 and replace it with real code for disabling
2415 * the CRTC2 output during sleep
2417 aty_st_le32(CRTC2_GEN_CNTL, aty_ld_le32(CRTC2_GEN_CNTL) &
2420 /* Set the power management mode to be PCI based */
2421 /* Use this magic value for now */
2423 aty_st_pll(POWER_MANAGEMENT, pmgt);
2424 (void)aty_ld_pll(POWER_MANAGEMENT);
2425 aty_st_le32(BUS_CNTL1, 0x00000010);
2426 aty_st_le32(MEM_POWER_MISC, 0x0c830000);
2428 pci_read_config_word(pdev, par->pm_reg+PCI_PM_CTRL, &pwr_command);
2429 /* Switch PCI power management to D2 */
2430 pci_write_config_word(pdev, par->pm_reg+PCI_PM_CTRL,
2431 (pwr_command & ~PCI_PM_CTRL_STATE_MASK) | 2);
2432 pci_read_config_word(pdev, par->pm_reg+PCI_PM_CTRL, &pwr_command);
2434 /* Switch back PCI power management to D0 */
2436 pci_write_config_word(pdev, par->pm_reg+PCI_PM_CTRL, 0);
2437 pci_read_config_word(pdev, par->pm_reg+PCI_PM_CTRL, &pwr_command);
2442 static int aty128_pci_suspend(struct pci_dev *pdev, pm_message_t state)
2444 struct fb_info *info = pci_get_drvdata(pdev);
2445 struct aty128fb_par *par = info->par;
2447 /* We don't do anything but D2, for now we return 0, but
2448 * we may want to change that. How do we know if the BIOS
2449 * can properly take care of D3 ? Also, with swsusp, we
2450 * know we'll be rebooted, ...
2452 #ifndef CONFIG_PPC_PMAC
2453 /* HACK ALERT ! Once I find a proper way to say to each driver
2454 * individually what will happen with it's PCI slot, I'll change
2455 * that. On laptops, the AGP slot is just unclocked, so D2 is
2456 * expected, while on desktops, the card is powered off
2459 #endif /* CONFIG_PPC_PMAC */
2461 if (state.event == pdev->dev.power.power_state.event)
2464 printk(KERN_DEBUG "aty128fb: suspending...\n");
2466 acquire_console_sem();
2468 fb_set_suspend(info, 1);
2470 /* Make sure engine is reset */
2472 aty128_reset_engine(par);
2475 /* Blank display and LCD */
2476 aty128fb_blank(VESA_POWERDOWN, info);
2480 par->lock_blank = 1;
2482 #ifdef CONFIG_PPC_PMAC
2483 /* On powermac, we have hooks to properly suspend/resume AGP now,
2484 * use them here. We'll ultimately need some generic support here,
2485 * but the generic code isn't quite ready for that yet
2487 pmac_suspend_agp_for_card(pdev);
2488 #endif /* CONFIG_PPC_PMAC */
2490 /* We need a way to make sure the fbdev layer will _not_ touch the
2491 * framebuffer before we put the chip to suspend state. On 2.4, I
2492 * used dummy fb ops, 2.5 need proper support for this at the
2495 if (state.event != PM_EVENT_ON)
2496 aty128_set_suspend(par, 1);
2498 release_console_sem();
2500 pdev->dev.power.power_state = state;
2505 static int aty128_do_resume(struct pci_dev *pdev)
2507 struct fb_info *info = pci_get_drvdata(pdev);
2508 struct aty128fb_par *par = info->par;
2510 if (pdev->dev.power.power_state.event == PM_EVENT_ON)
2514 aty128_set_suspend(par, 0);
2517 /* Restore display & engine */
2518 aty128_reset_engine(par);
2520 aty128fb_set_par(info);
2521 fb_pan_display(info, &info->var);
2522 fb_set_cmap(&info->cmap, info);
2525 fb_set_suspend(info, 0);
2528 par->lock_blank = 0;
2529 aty128fb_blank(0, info);
2531 #ifdef CONFIG_PPC_PMAC
2532 /* On powermac, we have hooks to properly suspend/resume AGP now,
2533 * use them here. We'll ultimately need some generic support here,
2534 * but the generic code isn't quite ready for that yet
2536 pmac_resume_agp_for_card(pdev);
2537 #endif /* CONFIG_PPC_PMAC */
2539 pdev->dev.power.power_state = PMSG_ON;
2541 printk(KERN_DEBUG "aty128fb: resumed !\n");
2546 static int aty128_pci_resume(struct pci_dev *pdev)
2550 acquire_console_sem();
2551 rc = aty128_do_resume(pdev);
2552 release_console_sem();
2558 static int __devinit aty128fb_init(void)
2561 char *option = NULL;
2563 if (fb_get_options("aty128fb", &option))
2565 aty128fb_setup(option);
2568 return pci_register_driver(&aty128fb_driver);
2571 static void __exit aty128fb_exit(void)
2573 pci_unregister_driver(&aty128fb_driver);
2576 module_init(aty128fb_init);
2578 module_exit(aty128fb_exit);
2580 MODULE_AUTHOR("(c)1999-2003 Brad Douglas <brad@neruo.com>");
2581 MODULE_DESCRIPTION("FBDev driver for ATI Rage128 / Pro cards");
2582 MODULE_LICENSE("GPL");
2583 module_param(mode_option, charp, 0);
2584 MODULE_PARM_DESC(mode_option, "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" ");
2586 module_param_named(nomtrr, mtrr, invbool, 0);
2587 MODULE_PARM_DESC(nomtrr, "bool: Disable MTRR support (0 or 1=disabled) (default=0)");