2 * drivers/video/aty/radeon_base.c
4 * framebuffer driver for ATI Radeon chipset video boards
6 * Copyright 2003 Ben. Herrenschmidt <benh@kernel.crashing.org>
7 * Copyright 2000 Ani Joshi <ajoshi@kernel.crashing.org>
9 * i2c bits from Luca Tettamanti <kronos@kronoz.cjb.net>
11 * Special thanks to ATI DevRel team for their hardware donations.
13 * ...Insert GPL boilerplate here...
15 * Significant portions of this driver apdated from XFree86 Radeon
16 * driver which has the following copyright notice:
18 * Copyright 2000 ATI Technologies Inc., Markham, Ontario, and
19 * VA Linux Systems Inc., Fremont, California.
21 * All Rights Reserved.
23 * Permission is hereby granted, free of charge, to any person obtaining
24 * a copy of this software and associated documentation files (the
25 * "Software"), to deal in the Software without restriction, including
26 * without limitation on the rights to use, copy, modify, merge,
27 * publish, distribute, sublicense, and/or sell copies of the Software,
28 * and to permit persons to whom the Software is furnished to do so,
29 * subject to the following conditions:
31 * The above copyright notice and this permission notice (including the
32 * next paragraph) shall be included in all copies or substantial
33 * portions of the Software.
35 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
36 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
37 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
38 * NON-INFRINGEMENT. IN NO EVENT SHALL ATI, VA LINUX SYSTEMS AND/OR
39 * THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
40 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
41 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
42 * DEALINGS IN THE SOFTWARE.
44 * XFree86 driver authors:
46 * Kevin E. Martin <martin@xfree86.org>
47 * Rickard E. Faith <faith@valinux.com>
48 * Alan Hourihane <alanh@fairlite.demon.co.uk>
53 #define RADEON_VERSION "0.2.0"
57 #include <linux/module.h>
58 #include <linux/moduleparam.h>
59 #include <linux/kernel.h>
60 #include <linux/errno.h>
61 #include <linux/string.h>
62 #include <linux/ctype.h>
64 #include <linux/slab.h>
65 #include <linux/delay.h>
66 #include <linux/time.h>
68 #include <linux/ioport.h>
69 #include <linux/init.h>
70 #include <linux/pci.h>
71 #include <linux/vmalloc.h>
72 #include <linux/device.h>
75 #include <linux/uaccess.h>
79 #include <asm/pci-bridge.h>
80 #include "../macmodes.h"
82 #ifdef CONFIG_BOOTX_TEXT
83 #include <asm/btext.h>
86 #endif /* CONFIG_PPC_OF */
92 #include <video/radeon.h>
93 #include <linux/radeonfb.h>
95 #include "../edid.h" // MOVE THAT TO include/video
98 #define MAX_MAPPED_VRAM (2048*2048*4)
99 #define MIN_MAPPED_VRAM (1024*768*1)
101 #define CHIP_DEF(id, family, flags) \
102 { PCI_VENDOR_ID_ATI, id, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (flags) | (CHIP_FAMILY_##family) }
104 static struct pci_device_id radeonfb_pci_table[] = {
105 /* Radeon Xpress 200m */
106 CHIP_DEF(PCI_CHIP_RS480_5955, RS480, CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
107 CHIP_DEF(PCI_CHIP_RS482_5975, RS480, CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
109 CHIP_DEF(PCI_CHIP_RADEON_LY, RV100, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
110 CHIP_DEF(PCI_CHIP_RADEON_LZ, RV100, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
112 CHIP_DEF(PCI_CHIP_RV100_QY, RV100, CHIP_HAS_CRTC2),
113 CHIP_DEF(PCI_CHIP_RV100_QZ, RV100, CHIP_HAS_CRTC2),
114 CHIP_DEF(PCI_CHIP_RN50, RV100, CHIP_HAS_CRTC2),
115 /* Radeon IGP320M (U1) */
116 CHIP_DEF(PCI_CHIP_RS100_4336, RS100, CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
117 /* Radeon IGP320 (A3) */
118 CHIP_DEF(PCI_CHIP_RS100_4136, RS100, CHIP_HAS_CRTC2 | CHIP_IS_IGP),
119 /* IGP330M/340M/350M (U2) */
120 CHIP_DEF(PCI_CHIP_RS200_4337, RS200, CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
121 /* IGP330/340/350 (A4) */
122 CHIP_DEF(PCI_CHIP_RS200_4137, RS200, CHIP_HAS_CRTC2 | CHIP_IS_IGP),
123 /* Mobility 7000 IGP */
124 CHIP_DEF(PCI_CHIP_RS250_4437, RS200, CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
126 CHIP_DEF(PCI_CHIP_RS250_4237, RS200, CHIP_HAS_CRTC2 | CHIP_IS_IGP),
128 CHIP_DEF(PCI_CHIP_R200_BB, R200, CHIP_HAS_CRTC2),
129 CHIP_DEF(PCI_CHIP_R200_BC, R200, CHIP_HAS_CRTC2),
131 CHIP_DEF(PCI_CHIP_R200_QH, R200, CHIP_HAS_CRTC2),
133 CHIP_DEF(PCI_CHIP_R200_QL, R200, CHIP_HAS_CRTC2),
135 CHIP_DEF(PCI_CHIP_R200_QM, R200, CHIP_HAS_CRTC2),
137 CHIP_DEF(PCI_CHIP_RADEON_LW, RV200, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
138 CHIP_DEF(PCI_CHIP_RADEON_LX, RV200, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
140 CHIP_DEF(PCI_CHIP_RV200_QW, RV200, CHIP_HAS_CRTC2),
141 CHIP_DEF(PCI_CHIP_RV200_QX, RV200, CHIP_HAS_CRTC2),
143 CHIP_DEF(PCI_CHIP_RV250_Ld, RV250, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
144 CHIP_DEF(PCI_CHIP_RV250_Le, RV250, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
145 CHIP_DEF(PCI_CHIP_RV250_Lf, RV250, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
146 CHIP_DEF(PCI_CHIP_RV250_Lg, RV250, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
148 CHIP_DEF(PCI_CHIP_RV250_If, RV250, CHIP_HAS_CRTC2),
149 CHIP_DEF(PCI_CHIP_RV250_Ig, RV250, CHIP_HAS_CRTC2),
151 CHIP_DEF(PCI_CHIP_RC410_5A62, RC410, CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
152 /* Mobility 9100 IGP (U3) */
153 CHIP_DEF(PCI_CHIP_RS300_5835, RS300, CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
154 CHIP_DEF(PCI_CHIP_RS350_7835, RS300, CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
156 CHIP_DEF(PCI_CHIP_RS300_5834, RS300, CHIP_HAS_CRTC2 | CHIP_IS_IGP),
157 CHIP_DEF(PCI_CHIP_RS350_7834, RS300, CHIP_HAS_CRTC2 | CHIP_IS_IGP),
158 /* Mobility 9200 (M9+) */
159 CHIP_DEF(PCI_CHIP_RV280_5C61, RV280, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
160 CHIP_DEF(PCI_CHIP_RV280_5C63, RV280, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
162 CHIP_DEF(PCI_CHIP_RV280_5960, RV280, CHIP_HAS_CRTC2),
163 CHIP_DEF(PCI_CHIP_RV280_5961, RV280, CHIP_HAS_CRTC2),
164 CHIP_DEF(PCI_CHIP_RV280_5962, RV280, CHIP_HAS_CRTC2),
165 CHIP_DEF(PCI_CHIP_RV280_5964, RV280, CHIP_HAS_CRTC2),
167 CHIP_DEF(PCI_CHIP_R300_AD, R300, CHIP_HAS_CRTC2),
168 CHIP_DEF(PCI_CHIP_R300_AE, R300, CHIP_HAS_CRTC2),
169 /* 9600TX / FireGL Z1 */
170 CHIP_DEF(PCI_CHIP_R300_AF, R300, CHIP_HAS_CRTC2),
171 CHIP_DEF(PCI_CHIP_R300_AG, R300, CHIP_HAS_CRTC2),
172 /* 9700/9500/Pro/FireGL X1 */
173 CHIP_DEF(PCI_CHIP_R300_ND, R300, CHIP_HAS_CRTC2),
174 CHIP_DEF(PCI_CHIP_R300_NE, R300, CHIP_HAS_CRTC2),
175 CHIP_DEF(PCI_CHIP_R300_NF, R300, CHIP_HAS_CRTC2),
176 CHIP_DEF(PCI_CHIP_R300_NG, R300, CHIP_HAS_CRTC2),
177 /* Mobility M10/M11 */
178 CHIP_DEF(PCI_CHIP_RV350_NP, RV350, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
179 CHIP_DEF(PCI_CHIP_RV350_NQ, RV350, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
180 CHIP_DEF(PCI_CHIP_RV350_NR, RV350, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
181 CHIP_DEF(PCI_CHIP_RV350_NS, RV350, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
182 CHIP_DEF(PCI_CHIP_RV350_NT, RV350, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
183 CHIP_DEF(PCI_CHIP_RV350_NV, RV350, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
185 CHIP_DEF(PCI_CHIP_RV350_AP, RV350, CHIP_HAS_CRTC2),
186 CHIP_DEF(PCI_CHIP_RV350_AQ, RV350, CHIP_HAS_CRTC2),
187 CHIP_DEF(PCI_CHIP_RV360_AR, RV350, CHIP_HAS_CRTC2),
188 CHIP_DEF(PCI_CHIP_RV350_AS, RV350, CHIP_HAS_CRTC2),
189 CHIP_DEF(PCI_CHIP_RV350_AT, RV350, CHIP_HAS_CRTC2),
190 CHIP_DEF(PCI_CHIP_RV350_AV, RV350, CHIP_HAS_CRTC2),
191 /* 9800/Pro/FileGL X2 */
192 CHIP_DEF(PCI_CHIP_R350_AH, R350, CHIP_HAS_CRTC2),
193 CHIP_DEF(PCI_CHIP_R350_AI, R350, CHIP_HAS_CRTC2),
194 CHIP_DEF(PCI_CHIP_R350_AJ, R350, CHIP_HAS_CRTC2),
195 CHIP_DEF(PCI_CHIP_R350_AK, R350, CHIP_HAS_CRTC2),
196 CHIP_DEF(PCI_CHIP_R350_NH, R350, CHIP_HAS_CRTC2),
197 CHIP_DEF(PCI_CHIP_R350_NI, R350, CHIP_HAS_CRTC2),
198 CHIP_DEF(PCI_CHIP_R360_NJ, R350, CHIP_HAS_CRTC2),
199 CHIP_DEF(PCI_CHIP_R350_NK, R350, CHIP_HAS_CRTC2),
201 CHIP_DEF(PCI_CHIP_RV380_3E50, RV380, CHIP_HAS_CRTC2),
202 CHIP_DEF(PCI_CHIP_RV380_3E54, RV380, CHIP_HAS_CRTC2),
203 CHIP_DEF(PCI_CHIP_RV380_3150, RV380, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
204 CHIP_DEF(PCI_CHIP_RV380_3154, RV380, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
205 CHIP_DEF(PCI_CHIP_RV370_5B60, RV380, CHIP_HAS_CRTC2),
206 CHIP_DEF(PCI_CHIP_RV370_5B62, RV380, CHIP_HAS_CRTC2),
207 CHIP_DEF(PCI_CHIP_RV370_5B63, RV380, CHIP_HAS_CRTC2),
208 CHIP_DEF(PCI_CHIP_RV370_5B64, RV380, CHIP_HAS_CRTC2),
209 CHIP_DEF(PCI_CHIP_RV370_5B65, RV380, CHIP_HAS_CRTC2),
210 CHIP_DEF(PCI_CHIP_RV370_5460, RV380, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
211 CHIP_DEF(PCI_CHIP_RV370_5464, RV380, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
212 CHIP_DEF(PCI_CHIP_R420_JH, R420, CHIP_HAS_CRTC2),
213 CHIP_DEF(PCI_CHIP_R420_JI, R420, CHIP_HAS_CRTC2),
214 CHIP_DEF(PCI_CHIP_R420_JJ, R420, CHIP_HAS_CRTC2),
215 CHIP_DEF(PCI_CHIP_R420_JK, R420, CHIP_HAS_CRTC2),
216 CHIP_DEF(PCI_CHIP_R420_JL, R420, CHIP_HAS_CRTC2),
217 CHIP_DEF(PCI_CHIP_R420_JM, R420, CHIP_HAS_CRTC2),
218 CHIP_DEF(PCI_CHIP_R420_JN, R420, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
219 CHIP_DEF(PCI_CHIP_R420_JP, R420, CHIP_HAS_CRTC2),
220 CHIP_DEF(PCI_CHIP_R423_UH, R420, CHIP_HAS_CRTC2),
221 CHIP_DEF(PCI_CHIP_R423_UI, R420, CHIP_HAS_CRTC2),
222 CHIP_DEF(PCI_CHIP_R423_UJ, R420, CHIP_HAS_CRTC2),
223 CHIP_DEF(PCI_CHIP_R423_UK, R420, CHIP_HAS_CRTC2),
224 CHIP_DEF(PCI_CHIP_R423_UQ, R420, CHIP_HAS_CRTC2),
225 CHIP_DEF(PCI_CHIP_R423_UR, R420, CHIP_HAS_CRTC2),
226 CHIP_DEF(PCI_CHIP_R423_UT, R420, CHIP_HAS_CRTC2),
227 CHIP_DEF(PCI_CHIP_R423_5D57, R420, CHIP_HAS_CRTC2),
228 /* Original Radeon/7200 */
229 CHIP_DEF(PCI_CHIP_RADEON_QD, RADEON, 0),
230 CHIP_DEF(PCI_CHIP_RADEON_QE, RADEON, 0),
231 CHIP_DEF(PCI_CHIP_RADEON_QF, RADEON, 0),
232 CHIP_DEF(PCI_CHIP_RADEON_QG, RADEON, 0),
235 MODULE_DEVICE_TABLE(pci, radeonfb_pci_table);
244 /* these common regs are cleared before mode setting so they do not
245 * interfere with anything
247 static reg_val common_regs[] = {
249 { OVR_WID_LEFT_RIGHT, 0 },
250 { OVR_WID_TOP_BOTTOM, 0 },
251 { OV0_SCALE_CNTL, 0 },
256 { CAP0_TRIG_CNTL, 0 },
257 { CAP1_TRIG_CNTL, 0 },
264 static char *mode_option;
265 static char *monitor_layout;
266 static int noaccel = 0;
267 static int default_dynclk = -2;
268 static int nomodeset = 0;
269 static int ignore_edid = 0;
270 static int mirror = 0;
271 static int panel_yres = 0;
272 static int force_dfp = 0;
273 static int force_measure_pll = 0;
275 static int nomtrr = 0;
277 static int force_sleep;
278 static int ignore_devlist;
279 #ifdef CONFIG_PMAC_BACKLIGHT
280 static int backlight = 1;
282 static int backlight = 0;
289 static void radeon_unmap_ROM(struct radeonfb_info *rinfo, struct pci_dev *dev)
291 if (!rinfo->bios_seg)
293 pci_unmap_rom(dev, rinfo->bios_seg);
296 static int __devinit radeon_map_ROM(struct radeonfb_info *rinfo, struct pci_dev *dev)
303 /* If this is a primary card, there is a shadow copy of the
304 * ROM somewhere in the first meg. We will just ignore the copy
305 * and use the ROM directly.
308 /* Fix from ATI for problem with Radeon hardware not leaving ROM enabled */
310 temp = INREG(MPP_TB_CONFIG);
313 OUTREG(MPP_TB_CONFIG, temp);
314 temp = INREG(MPP_TB_CONFIG);
316 rom = pci_map_rom(dev, &rom_size);
318 printk(KERN_ERR "radeonfb (%s): ROM failed to map\n",
319 pci_name(rinfo->pdev));
323 rinfo->bios_seg = rom;
325 /* Very simple test to make sure it appeared */
326 if (BIOS_IN16(0) != 0xaa55) {
327 printk(KERN_DEBUG "radeonfb (%s): Invalid ROM signature %x "
328 "should be 0xaa55\n",
329 pci_name(rinfo->pdev), BIOS_IN16(0));
332 /* Look for the PCI data to check the ROM type */
333 dptr = BIOS_IN16(0x18);
335 /* Check the PCI data signature. If it's wrong, we still assume a normal x86 ROM
336 * for now, until I've verified this works everywhere. The goal here is more
337 * to phase out Open Firmware images.
339 * Currently, we only look at the first PCI data, we could iteratre and deal with
340 * them all, and we should use fb_bios_start relative to start of image and not
341 * relative start of ROM, but so far, I never found a dual-image ATI card
344 * u32 signature; + 0x00
347 * u16 reserved_1; + 0x08
349 * u8 drevision; + 0x0c
350 * u8 class_hi; + 0x0d
351 * u16 class_lo; + 0x0e
353 * u16 irevision; + 0x12
355 * u8 indicator; + 0x15
356 * u16 reserved_2; + 0x16
359 if (BIOS_IN32(dptr) != (('R' << 24) | ('I' << 16) | ('C' << 8) | 'P')) {
360 printk(KERN_WARNING "radeonfb (%s): PCI DATA signature in ROM"
361 "incorrect: %08x\n", pci_name(rinfo->pdev), BIOS_IN32(dptr));
364 rom_type = BIOS_IN8(dptr + 0x14);
367 printk(KERN_INFO "radeonfb: Found Intel x86 BIOS ROM Image\n");
370 printk(KERN_INFO "radeonfb: Found Open Firmware ROM Image\n");
373 printk(KERN_INFO "radeonfb: Found HP PA-RISC ROM Image\n");
376 printk(KERN_INFO "radeonfb: Found unknown type %d ROM Image\n", rom_type);
380 /* Locate the flat panel infos, do some sanity checking !!! */
381 rinfo->fp_bios_start = BIOS_IN16(0x48);
385 rinfo->bios_seg = NULL;
386 radeon_unmap_ROM(rinfo, dev);
391 static int __devinit radeon_find_mem_vbios(struct radeonfb_info *rinfo)
393 /* I simplified this code as we used to miss the signatures in
394 * a lot of case. It's now closer to XFree, we just don't check
395 * for signatures at all... Something better will have to be done
396 * if we end up having conflicts
399 void __iomem *rom_base = NULL;
401 for(segstart=0x000c0000; segstart<0x000f0000; segstart+=0x00001000) {
402 rom_base = ioremap(segstart, 0x10000);
403 if (rom_base == NULL)
405 if (readb(rom_base) == 0x55 && readb(rom_base + 1) == 0xaa)
410 if (rom_base == NULL)
413 /* Locate the flat panel infos, do some sanity checking !!! */
414 rinfo->bios_seg = rom_base;
415 rinfo->fp_bios_start = BIOS_IN16(0x48);
421 #if defined(CONFIG_PPC_OF) || defined(CONFIG_SPARC)
423 * Read XTAL (ref clock), SCLK and MCLK from Open Firmware device
424 * tree. Hopefully, ATI OF driver is kind enough to fill these
426 static int __devinit radeon_read_xtal_OF (struct radeonfb_info *rinfo)
428 struct device_node *dp = rinfo->of_node;
433 val = of_get_property(dp, "ATY,RefCLK", NULL);
435 printk(KERN_WARNING "radeonfb: No ATY,RefCLK property !\n");
439 rinfo->pll.ref_clk = (*val) / 10;
441 val = of_get_property(dp, "ATY,SCLK", NULL);
443 rinfo->pll.sclk = (*val) / 10;
445 val = of_get_property(dp, "ATY,MCLK", NULL);
447 rinfo->pll.mclk = (*val) / 10;
451 #endif /* CONFIG_PPC_OF || CONFIG_SPARC */
454 * Read PLL infos from chip registers
456 static int __devinit radeon_probe_pll_params(struct radeonfb_info *rinfo)
458 unsigned char ppll_div_sel;
460 unsigned sclk, mclk, tmp, ref_div;
461 int hTotal, vTotal, num, denom, m, n;
462 unsigned long long hz, vclk;
464 struct timeval start_tv, stop_tv;
465 long total_secs, total_usecs;
468 /* Ugh, we cut interrupts, bad bad bad, but we want some precision
472 /* Flush PCI buffers ? */
473 tmp = INREG16(DEVICE_ID);
477 for(i=0; i<1000000; i++)
478 if (((INREG(CRTC_VLINE_CRNT_VLINE) >> 16) & 0x3ff) == 0)
481 do_gettimeofday(&start_tv);
483 for(i=0; i<1000000; i++)
484 if (((INREG(CRTC_VLINE_CRNT_VLINE) >> 16) & 0x3ff) != 0)
487 for(i=0; i<1000000; i++)
488 if (((INREG(CRTC_VLINE_CRNT_VLINE) >> 16) & 0x3ff) == 0)
491 do_gettimeofday(&stop_tv);
495 total_secs = stop_tv.tv_sec - start_tv.tv_sec;
498 total_usecs = stop_tv.tv_usec - start_tv.tv_usec;
499 total_usecs += total_secs * 1000000;
501 total_usecs = -total_usecs;
502 hz = 1000000/total_usecs;
504 hTotal = ((INREG(CRTC_H_TOTAL_DISP) & 0x1ff) + 1) * 8;
505 vTotal = ((INREG(CRTC_V_TOTAL_DISP) & 0x3ff) + 1);
506 vclk = (long long)hTotal * (long long)vTotal * hz;
508 switch((INPLL(PPLL_REF_DIV) & 0x30000) >> 16) {
515 n = ((INPLL(M_SPLL_REF_FB_DIV) >> 16) & 0xff);
516 m = (INPLL(M_SPLL_REF_FB_DIV) & 0xff);
521 n = ((INPLL(M_SPLL_REF_FB_DIV) >> 8) & 0xff);
522 m = (INPLL(M_SPLL_REF_FB_DIV) & 0xff);
528 ppll_div_sel = INREG8(CLOCK_CNTL_INDEX + 1) & 0x3;
529 radeon_pll_errata_after_index(rinfo);
531 n = (INPLL(PPLL_DIV_0 + ppll_div_sel) & 0x7ff);
532 m = (INPLL(PPLL_REF_DIV) & 0x3ff);
537 switch ((INPLL(PPLL_DIV_0 + ppll_div_sel) >> 16) & 0x7) {
559 do_div(vclk, 1000 * num);
562 if ((xtal > 26900) && (xtal < 27100))
564 else if ((xtal > 14200) && (xtal < 14400))
566 else if ((xtal > 29400) && (xtal < 29600))
569 printk(KERN_WARNING "xtal calculation failed: %ld\n", xtal);
573 tmp = INPLL(M_SPLL_REF_FB_DIV);
574 ref_div = INPLL(PPLL_REF_DIV) & 0x3ff;
576 Ns = (tmp & 0xff0000) >> 16;
577 Nm = (tmp & 0xff00) >> 8;
579 sclk = round_div((2 * Ns * xtal), (2 * M));
580 mclk = round_div((2 * Nm * xtal), (2 * M));
582 /* we're done, hopefully these are sane values */
583 rinfo->pll.ref_clk = xtal;
584 rinfo->pll.ref_div = ref_div;
585 rinfo->pll.sclk = sclk;
586 rinfo->pll.mclk = mclk;
592 * Retrieve PLL infos by different means (BIOS, Open Firmware, register probing...)
594 static void __devinit radeon_get_pllinfo(struct radeonfb_info *rinfo)
597 * In the case nothing works, these are defaults; they are mostly
598 * incomplete, however. It does provide ppll_max and _min values
599 * even for most other methods, however.
601 switch (rinfo->chipset) {
602 case PCI_DEVICE_ID_ATI_RADEON_QW:
603 case PCI_DEVICE_ID_ATI_RADEON_QX:
604 rinfo->pll.ppll_max = 35000;
605 rinfo->pll.ppll_min = 12000;
606 rinfo->pll.mclk = 23000;
607 rinfo->pll.sclk = 23000;
608 rinfo->pll.ref_clk = 2700;
610 case PCI_DEVICE_ID_ATI_RADEON_QL:
611 case PCI_DEVICE_ID_ATI_RADEON_QN:
612 case PCI_DEVICE_ID_ATI_RADEON_QO:
613 case PCI_DEVICE_ID_ATI_RADEON_Ql:
614 case PCI_DEVICE_ID_ATI_RADEON_BB:
615 rinfo->pll.ppll_max = 35000;
616 rinfo->pll.ppll_min = 12000;
617 rinfo->pll.mclk = 27500;
618 rinfo->pll.sclk = 27500;
619 rinfo->pll.ref_clk = 2700;
621 case PCI_DEVICE_ID_ATI_RADEON_Id:
622 case PCI_DEVICE_ID_ATI_RADEON_Ie:
623 case PCI_DEVICE_ID_ATI_RADEON_If:
624 case PCI_DEVICE_ID_ATI_RADEON_Ig:
625 rinfo->pll.ppll_max = 35000;
626 rinfo->pll.ppll_min = 12000;
627 rinfo->pll.mclk = 25000;
628 rinfo->pll.sclk = 25000;
629 rinfo->pll.ref_clk = 2700;
631 case PCI_DEVICE_ID_ATI_RADEON_ND:
632 case PCI_DEVICE_ID_ATI_RADEON_NE:
633 case PCI_DEVICE_ID_ATI_RADEON_NF:
634 case PCI_DEVICE_ID_ATI_RADEON_NG:
635 rinfo->pll.ppll_max = 40000;
636 rinfo->pll.ppll_min = 20000;
637 rinfo->pll.mclk = 27000;
638 rinfo->pll.sclk = 27000;
639 rinfo->pll.ref_clk = 2700;
641 case PCI_DEVICE_ID_ATI_RADEON_QD:
642 case PCI_DEVICE_ID_ATI_RADEON_QE:
643 case PCI_DEVICE_ID_ATI_RADEON_QF:
644 case PCI_DEVICE_ID_ATI_RADEON_QG:
646 rinfo->pll.ppll_max = 35000;
647 rinfo->pll.ppll_min = 12000;
648 rinfo->pll.mclk = 16600;
649 rinfo->pll.sclk = 16600;
650 rinfo->pll.ref_clk = 2700;
653 rinfo->pll.ref_div = INPLL(PPLL_REF_DIV) & PPLL_REF_DIV_MASK;
656 #if defined(CONFIG_PPC_OF) || defined(CONFIG_SPARC)
658 * Retrieve PLL infos from Open Firmware first
660 if (!force_measure_pll && radeon_read_xtal_OF(rinfo) == 0) {
661 printk(KERN_INFO "radeonfb: Retrieved PLL infos from Open Firmware\n");
664 #endif /* CONFIG_PPC_OF || CONFIG_SPARC */
667 * Check out if we have an X86 which gave us some PLL informations
668 * and if yes, retrieve them
670 if (!force_measure_pll && rinfo->bios_seg) {
671 u16 pll_info_block = BIOS_IN16(rinfo->fp_bios_start + 0x30);
673 rinfo->pll.sclk = BIOS_IN16(pll_info_block + 0x08);
674 rinfo->pll.mclk = BIOS_IN16(pll_info_block + 0x0a);
675 rinfo->pll.ref_clk = BIOS_IN16(pll_info_block + 0x0e);
676 rinfo->pll.ref_div = BIOS_IN16(pll_info_block + 0x10);
677 rinfo->pll.ppll_min = BIOS_IN32(pll_info_block + 0x12);
678 rinfo->pll.ppll_max = BIOS_IN32(pll_info_block + 0x16);
680 printk(KERN_INFO "radeonfb: Retrieved PLL infos from BIOS\n");
685 * We didn't get PLL parameters from either OF or BIOS, we try to
688 if (radeon_probe_pll_params(rinfo) == 0) {
689 printk(KERN_INFO "radeonfb: Retrieved PLL infos from registers\n");
694 * Fall back to already-set defaults...
696 printk(KERN_INFO "radeonfb: Used default PLL infos\n");
700 * Some methods fail to retrieve SCLK and MCLK values, we apply default
701 * settings in this case (200Mhz). If that really happne often, we could
702 * fetch from registers instead...
704 if (rinfo->pll.mclk == 0)
705 rinfo->pll.mclk = 20000;
706 if (rinfo->pll.sclk == 0)
707 rinfo->pll.sclk = 20000;
709 printk("radeonfb: Reference=%d.%02d MHz (RefDiv=%d) Memory=%d.%02d Mhz, System=%d.%02d MHz\n",
710 rinfo->pll.ref_clk / 100, rinfo->pll.ref_clk % 100,
712 rinfo->pll.mclk / 100, rinfo->pll.mclk % 100,
713 rinfo->pll.sclk / 100, rinfo->pll.sclk % 100);
714 printk("radeonfb: PLL min %d max %d\n", rinfo->pll.ppll_min, rinfo->pll.ppll_max);
717 static int radeonfb_check_var (struct fb_var_screeninfo *var, struct fb_info *info)
719 struct radeonfb_info *rinfo = info->par;
720 struct fb_var_screeninfo v;
724 if (radeon_match_mode(rinfo, &v, var))
727 switch (v.bits_per_pixel) {
729 v.bits_per_pixel = 8;
732 v.bits_per_pixel = 16;
735 #if 0 /* Doesn't seem to work */
736 v.bits_per_pixel = 24;
741 v.bits_per_pixel = 32;
747 switch (var_to_depth(&v)) {
750 v.red.offset = v.green.offset = v.blue.offset = 0;
751 v.red.length = v.green.length = v.blue.length = 8;
752 v.transp.offset = v.transp.length = 0;
760 v.red.length = v.green.length = v.blue.length = 5;
761 v.transp.offset = v.transp.length = 0;
772 v.transp.offset = v.transp.length = 0;
780 v.red.length = v.blue.length = v.green.length = 8;
781 v.transp.offset = v.transp.length = 0;
789 v.red.length = v.blue.length = v.green.length = 8;
790 v.transp.offset = 24;
794 printk ("radeonfb: mode %dx%dx%d rejected, color depth invalid\n",
795 var->xres, var->yres, var->bits_per_pixel);
799 if (v.yres_virtual < v.yres)
800 v.yres_virtual = v.yres;
801 if (v.xres_virtual < v.xres)
802 v.xres_virtual = v.xres;
805 /* XXX I'm adjusting xres_virtual to the pitch, that may help XFree
806 * with some panels, though I don't quite like this solution
808 if (rinfo->info->flags & FBINFO_HWACCEL_DISABLED) {
809 v.xres_virtual = v.xres_virtual & ~7ul;
811 pitch = ((v.xres_virtual * ((v.bits_per_pixel + 1) / 8) + 0x3f)
813 v.xres_virtual = (pitch << 6) / ((v.bits_per_pixel + 1) / 8);
816 if (((v.xres_virtual * v.yres_virtual * nom) / den) > rinfo->mapped_vram)
819 if (v.xres_virtual < v.xres)
820 v.xres = v.xres_virtual;
827 if (v.xoffset > v.xres_virtual - v.xres)
828 v.xoffset = v.xres_virtual - v.xres - 1;
830 if (v.yoffset > v.yres_virtual - v.yres)
831 v.yoffset = v.yres_virtual - v.yres - 1;
833 v.red.msb_right = v.green.msb_right = v.blue.msb_right =
834 v.transp.offset = v.transp.length =
835 v.transp.msb_right = 0;
837 memcpy(var, &v, sizeof(v));
843 static int radeonfb_pan_display (struct fb_var_screeninfo *var,
844 struct fb_info *info)
846 struct radeonfb_info *rinfo = info->par;
848 if ((var->xoffset + var->xres > var->xres_virtual)
849 || (var->yoffset + var->yres > var->yres_virtual))
856 OUTREG(CRTC_OFFSET, ((var->yoffset * var->xres_virtual + var->xoffset)
857 * var->bits_per_pixel / 8) & ~7);
862 static int radeonfb_ioctl (struct fb_info *info, unsigned int cmd,
865 struct radeonfb_info *rinfo = info->par;
872 * TODO: set mirror accordingly for non-Mobility chipsets with 2 CRTC's
873 * and do something better using 2nd CRTC instead of just hackish
874 * routing to second output
876 case FBIO_RADEON_SET_MIRROR:
877 if (!rinfo->is_mobility)
880 rc = get_user(value, (__u32 __user *)arg);
887 tmp = INREG(LVDS_GEN_CNTL);
889 tmp |= (LVDS_ON | LVDS_BLON);
891 tmp = INREG(LVDS_GEN_CNTL);
893 tmp &= ~(LVDS_ON | LVDS_BLON);
896 OUTREG(LVDS_GEN_CNTL, tmp);
899 tmp = INREG(CRTC_EXT_CNTL);
904 tmp = INREG(CRTC_EXT_CNTL);
910 OUTREG(CRTC_EXT_CNTL, tmp);
913 case FBIO_RADEON_GET_MIRROR:
914 if (!rinfo->is_mobility)
917 tmp = INREG(LVDS_GEN_CNTL);
918 if ((LVDS_ON | LVDS_BLON) & tmp)
921 tmp = INREG(CRTC_EXT_CNTL);
922 if (CRTC_CRT_ON & tmp)
925 return put_user(value, (__u32 __user *)arg);
934 int radeon_screen_blank(struct radeonfb_info *rinfo, int blank, int mode_switch)
940 if (rinfo->lock_blank)
943 radeon_engine_idle();
945 val = INREG(CRTC_EXT_CNTL);
946 val &= ~(CRTC_DISPLAY_DIS | CRTC_HSYNC_DIS |
949 case FB_BLANK_VSYNC_SUSPEND:
950 val |= (CRTC_DISPLAY_DIS | CRTC_VSYNC_DIS);
952 case FB_BLANK_HSYNC_SUSPEND:
953 val |= (CRTC_DISPLAY_DIS | CRTC_HSYNC_DIS);
955 case FB_BLANK_POWERDOWN:
956 val |= (CRTC_DISPLAY_DIS | CRTC_VSYNC_DIS |
959 case FB_BLANK_NORMAL:
960 val |= CRTC_DISPLAY_DIS;
962 case FB_BLANK_UNBLANK:
966 OUTREG(CRTC_EXT_CNTL, val);
969 switch (rinfo->mon1_type) {
972 OUTREGP(FP_GEN_CNTL, (FP_FPON | FP_TMDS_EN),
973 ~(FP_FPON | FP_TMDS_EN));
975 if (mode_switch || blank == FB_BLANK_NORMAL)
977 OUTREGP(FP_GEN_CNTL, 0, ~(FP_FPON | FP_TMDS_EN));
981 del_timer_sync(&rinfo->lvds_timer);
982 val = INREG(LVDS_GEN_CNTL);
984 u32 target_val = (val & ~LVDS_DISPLAY_DIS) | LVDS_BLON | LVDS_ON
985 | LVDS_EN | (rinfo->init_state.lvds_gen_cntl
986 & (LVDS_DIGON | LVDS_BL_MOD_EN));
987 if ((val ^ target_val) == LVDS_DISPLAY_DIS)
988 OUTREG(LVDS_GEN_CNTL, target_val);
989 else if ((val ^ target_val) != 0) {
990 OUTREG(LVDS_GEN_CNTL, target_val
991 & ~(LVDS_ON | LVDS_BL_MOD_EN));
992 rinfo->init_state.lvds_gen_cntl &= ~LVDS_STATE_MASK;
993 rinfo->init_state.lvds_gen_cntl |=
994 target_val & LVDS_STATE_MASK;
996 radeon_msleep(rinfo->panel_info.pwr_delay);
997 OUTREG(LVDS_GEN_CNTL, target_val);
1000 rinfo->pending_lvds_gen_cntl = target_val;
1001 mod_timer(&rinfo->lvds_timer,
1003 msecs_to_jiffies(rinfo->panel_info.pwr_delay));
1007 val |= LVDS_DISPLAY_DIS;
1008 OUTREG(LVDS_GEN_CNTL, val);
1010 /* We don't do a full switch-off on a simple mode switch */
1011 if (mode_switch || blank == FB_BLANK_NORMAL)
1014 /* Asic bug, when turning off LVDS_ON, we have to make sure
1015 * RADEON_PIXCLK_LVDS_ALWAYS_ON bit is off
1017 tmp_pix_clks = INPLL(PIXCLKS_CNTL);
1018 if (rinfo->is_mobility || rinfo->is_IGP)
1019 OUTPLLP(PIXCLKS_CNTL, 0, ~PIXCLK_LVDS_ALWAYS_ONb);
1020 val &= ~(LVDS_BL_MOD_EN);
1021 OUTREG(LVDS_GEN_CNTL, val);
1023 val &= ~(LVDS_ON | LVDS_EN);
1024 OUTREG(LVDS_GEN_CNTL, val);
1026 rinfo->pending_lvds_gen_cntl = val;
1027 mod_timer(&rinfo->lvds_timer,
1029 msecs_to_jiffies(rinfo->panel_info.pwr_delay));
1030 rinfo->init_state.lvds_gen_cntl &= ~LVDS_STATE_MASK;
1031 rinfo->init_state.lvds_gen_cntl |= val & LVDS_STATE_MASK;
1032 if (rinfo->is_mobility || rinfo->is_IGP)
1033 OUTPLL(PIXCLKS_CNTL, tmp_pix_clks);
1037 // todo: powerdown DAC
1045 static int radeonfb_blank (int blank, struct fb_info *info)
1047 struct radeonfb_info *rinfo = info->par;
1052 return radeon_screen_blank(rinfo, blank, 0);
1055 static int radeon_setcolreg (unsigned regno, unsigned red, unsigned green,
1056 unsigned blue, unsigned transp,
1057 struct radeonfb_info *rinfo)
1069 rinfo->palette[regno].red = red;
1070 rinfo->palette[regno].green = green;
1071 rinfo->palette[regno].blue = blue;
1076 if (!rinfo->asleep) {
1077 radeon_fifo_wait(9);
1079 if (rinfo->bpp == 16) {
1082 if (rinfo->depth == 16 && regno > 63)
1084 if (rinfo->depth == 15 && regno > 31)
1087 /* For 565, the green component is mixed one order
1090 if (rinfo->depth == 16) {
1091 OUTREG(PALETTE_INDEX, pindex>>1);
1092 OUTREG(PALETTE_DATA,
1093 (rinfo->palette[regno>>1].red << 16) |
1095 (rinfo->palette[regno>>1].blue));
1096 green = rinfo->palette[regno<<1].green;
1100 if (rinfo->depth != 16 || regno < 32) {
1101 OUTREG(PALETTE_INDEX, pindex);
1102 OUTREG(PALETTE_DATA, (red << 16) |
1103 (green << 8) | blue);
1107 u32 *pal = rinfo->info->pseudo_palette;
1108 switch (rinfo->depth) {
1110 pal[regno] = (regno << 10) | (regno << 5) | regno;
1113 pal[regno] = (regno << 11) | (regno << 5) | regno;
1116 pal[regno] = (regno << 16) | (regno << 8) | regno;
1119 i = (regno << 8) | regno;
1120 pal[regno] = (i << 16) | i;
1127 static int radeonfb_setcolreg (unsigned regno, unsigned red, unsigned green,
1128 unsigned blue, unsigned transp,
1129 struct fb_info *info)
1131 struct radeonfb_info *rinfo = info->par;
1132 u32 dac_cntl2, vclk_cntl = 0;
1135 if (!rinfo->asleep) {
1136 if (rinfo->is_mobility) {
1137 vclk_cntl = INPLL(VCLK_ECP_CNTL);
1138 OUTPLL(VCLK_ECP_CNTL,
1139 vclk_cntl & ~PIXCLK_DAC_ALWAYS_ONb);
1142 /* Make sure we are on first palette */
1143 if (rinfo->has_CRTC2) {
1144 dac_cntl2 = INREG(DAC_CNTL2);
1145 dac_cntl2 &= ~DAC2_PALETTE_ACCESS_CNTL;
1146 OUTREG(DAC_CNTL2, dac_cntl2);
1150 rc = radeon_setcolreg (regno, red, green, blue, transp, rinfo);
1152 if (!rinfo->asleep && rinfo->is_mobility)
1153 OUTPLL(VCLK_ECP_CNTL, vclk_cntl);
1158 static int radeonfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
1160 struct radeonfb_info *rinfo = info->par;
1161 u16 *red, *green, *blue, *transp;
1162 u32 dac_cntl2, vclk_cntl = 0;
1163 int i, start, rc = 0;
1165 if (!rinfo->asleep) {
1166 if (rinfo->is_mobility) {
1167 vclk_cntl = INPLL(VCLK_ECP_CNTL);
1168 OUTPLL(VCLK_ECP_CNTL,
1169 vclk_cntl & ~PIXCLK_DAC_ALWAYS_ONb);
1172 /* Make sure we are on first palette */
1173 if (rinfo->has_CRTC2) {
1174 dac_cntl2 = INREG(DAC_CNTL2);
1175 dac_cntl2 &= ~DAC2_PALETTE_ACCESS_CNTL;
1176 OUTREG(DAC_CNTL2, dac_cntl2);
1181 green = cmap->green;
1183 transp = cmap->transp;
1184 start = cmap->start;
1186 for (i = 0; i < cmap->len; i++) {
1187 u_int hred, hgreen, hblue, htransp = 0xffff;
1193 htransp = *transp++;
1194 rc = radeon_setcolreg (start++, hred, hgreen, hblue, htransp,
1200 if (!rinfo->asleep && rinfo->is_mobility)
1201 OUTPLL(VCLK_ECP_CNTL, vclk_cntl);
1206 static void radeon_save_state (struct radeonfb_info *rinfo,
1207 struct radeon_regs *save)
1210 save->crtc_gen_cntl = INREG(CRTC_GEN_CNTL);
1211 save->crtc_ext_cntl = INREG(CRTC_EXT_CNTL);
1212 save->crtc_more_cntl = INREG(CRTC_MORE_CNTL);
1213 save->dac_cntl = INREG(DAC_CNTL);
1214 save->crtc_h_total_disp = INREG(CRTC_H_TOTAL_DISP);
1215 save->crtc_h_sync_strt_wid = INREG(CRTC_H_SYNC_STRT_WID);
1216 save->crtc_v_total_disp = INREG(CRTC_V_TOTAL_DISP);
1217 save->crtc_v_sync_strt_wid = INREG(CRTC_V_SYNC_STRT_WID);
1218 save->crtc_pitch = INREG(CRTC_PITCH);
1219 save->surface_cntl = INREG(SURFACE_CNTL);
1222 save->fp_crtc_h_total_disp = INREG(FP_CRTC_H_TOTAL_DISP);
1223 save->fp_crtc_v_total_disp = INREG(FP_CRTC_V_TOTAL_DISP);
1224 save->fp_gen_cntl = INREG(FP_GEN_CNTL);
1225 save->fp_h_sync_strt_wid = INREG(FP_H_SYNC_STRT_WID);
1226 save->fp_horz_stretch = INREG(FP_HORZ_STRETCH);
1227 save->fp_v_sync_strt_wid = INREG(FP_V_SYNC_STRT_WID);
1228 save->fp_vert_stretch = INREG(FP_VERT_STRETCH);
1229 save->lvds_gen_cntl = INREG(LVDS_GEN_CNTL);
1230 save->lvds_pll_cntl = INREG(LVDS_PLL_CNTL);
1231 save->tmds_crc = INREG(TMDS_CRC);
1232 save->tmds_transmitter_cntl = INREG(TMDS_TRANSMITTER_CNTL);
1233 save->vclk_ecp_cntl = INPLL(VCLK_ECP_CNTL);
1236 save->clk_cntl_index = INREG(CLOCK_CNTL_INDEX) & ~0x3f;
1237 radeon_pll_errata_after_index(rinfo);
1238 save->ppll_div_3 = INPLL(PPLL_DIV_3);
1239 save->ppll_ref_div = INPLL(PPLL_REF_DIV);
1243 static void radeon_write_pll_regs(struct radeonfb_info *rinfo, struct radeon_regs *mode)
1247 radeon_fifo_wait(20);
1249 /* Workaround from XFree */
1250 if (rinfo->is_mobility) {
1251 /* A temporal workaround for the occational blanking on certain laptop
1252 * panels. This appears to related to the PLL divider registers
1253 * (fail to lock?). It occurs even when all dividers are the same
1254 * with their old settings. In this case we really don't need to
1255 * fiddle with PLL registers. By doing this we can avoid the blanking
1256 * problem with some panels.
1258 if ((mode->ppll_ref_div == (INPLL(PPLL_REF_DIV) & PPLL_REF_DIV_MASK)) &&
1259 (mode->ppll_div_3 == (INPLL(PPLL_DIV_3) &
1260 (PPLL_POST3_DIV_MASK | PPLL_FB3_DIV_MASK)))) {
1261 /* We still have to force a switch to selected PPLL div thanks to
1262 * an XFree86 driver bug which will switch it away in some cases
1263 * even when using UseFDev */
1264 OUTREGP(CLOCK_CNTL_INDEX,
1265 mode->clk_cntl_index & PPLL_DIV_SEL_MASK,
1266 ~PPLL_DIV_SEL_MASK);
1267 radeon_pll_errata_after_index(rinfo);
1268 radeon_pll_errata_after_data(rinfo);
1273 /* Swich VCKL clock input to CPUCLK so it stays fed while PPLL updates*/
1274 OUTPLLP(VCLK_ECP_CNTL, VCLK_SRC_SEL_CPUCLK, ~VCLK_SRC_SEL_MASK);
1276 /* Reset PPLL & enable atomic update */
1278 PPLL_RESET | PPLL_ATOMIC_UPDATE_EN | PPLL_VGA_ATOMIC_UPDATE_EN,
1279 ~(PPLL_RESET | PPLL_ATOMIC_UPDATE_EN | PPLL_VGA_ATOMIC_UPDATE_EN));
1281 /* Switch to selected PPLL divider */
1282 OUTREGP(CLOCK_CNTL_INDEX,
1283 mode->clk_cntl_index & PPLL_DIV_SEL_MASK,
1284 ~PPLL_DIV_SEL_MASK);
1285 radeon_pll_errata_after_index(rinfo);
1286 radeon_pll_errata_after_data(rinfo);
1288 /* Set PPLL ref. div */
1289 if (rinfo->family == CHIP_FAMILY_R300 ||
1290 rinfo->family == CHIP_FAMILY_RS300 ||
1291 rinfo->family == CHIP_FAMILY_R350 ||
1292 rinfo->family == CHIP_FAMILY_RV350 ||
1293 rinfo->family == CHIP_FAMILY_RV380 ) {
1294 if (mode->ppll_ref_div & R300_PPLL_REF_DIV_ACC_MASK) {
1295 /* When restoring console mode, use saved PPLL_REF_DIV
1298 OUTPLLP(PPLL_REF_DIV, mode->ppll_ref_div, 0);
1300 /* R300 uses ref_div_acc field as real ref divider */
1301 OUTPLLP(PPLL_REF_DIV,
1302 (mode->ppll_ref_div << R300_PPLL_REF_DIV_ACC_SHIFT),
1303 ~R300_PPLL_REF_DIV_ACC_MASK);
1306 OUTPLLP(PPLL_REF_DIV, mode->ppll_ref_div, ~PPLL_REF_DIV_MASK);
1308 /* Set PPLL divider 3 & post divider*/
1309 OUTPLLP(PPLL_DIV_3, mode->ppll_div_3, ~PPLL_FB3_DIV_MASK);
1310 OUTPLLP(PPLL_DIV_3, mode->ppll_div_3, ~PPLL_POST3_DIV_MASK);
1313 while (INPLL(PPLL_REF_DIV) & PPLL_ATOMIC_UPDATE_R)
1315 OUTPLLP(PPLL_REF_DIV, PPLL_ATOMIC_UPDATE_W, ~PPLL_ATOMIC_UPDATE_W);
1317 /* Wait read update complete */
1318 /* FIXME: Certain revisions of R300 can't recover here. Not sure of
1319 the cause yet, but this workaround will mask the problem for now.
1320 Other chips usually will pass at the very first test, so the
1321 workaround shouldn't have any effect on them. */
1322 for (i = 0; (i < 10000 && INPLL(PPLL_REF_DIV) & PPLL_ATOMIC_UPDATE_R); i++)
1325 OUTPLL(HTOTAL_CNTL, 0);
1327 /* Clear reset & atomic update */
1328 OUTPLLP(PPLL_CNTL, 0,
1329 ~(PPLL_RESET | PPLL_SLEEP | PPLL_ATOMIC_UPDATE_EN | PPLL_VGA_ATOMIC_UPDATE_EN));
1331 /* We may want some locking ... oh well */
1334 /* Switch back VCLK source to PPLL */
1335 OUTPLLP(VCLK_ECP_CNTL, VCLK_SRC_SEL_PPLLCLK, ~VCLK_SRC_SEL_MASK);
1339 * Timer function for delayed LVDS panel power up/down
1341 static void radeon_lvds_timer_func(unsigned long data)
1343 struct radeonfb_info *rinfo = (struct radeonfb_info *)data;
1345 radeon_engine_idle();
1347 OUTREG(LVDS_GEN_CNTL, rinfo->pending_lvds_gen_cntl);
1351 * Apply a video mode. This will apply the whole register set, including
1352 * the PLL registers, to the card
1354 void radeon_write_mode (struct radeonfb_info *rinfo, struct radeon_regs *mode,
1358 int primary_mon = PRIMARY_MONITOR(rinfo);
1364 radeon_screen_blank(rinfo, FB_BLANK_NORMAL, 0);
1366 radeon_fifo_wait(31);
1367 for (i=0; i<10; i++)
1368 OUTREG(common_regs[i].reg, common_regs[i].val);
1370 /* Apply surface registers */
1371 for (i=0; i<8; i++) {
1372 OUTREG(SURFACE0_LOWER_BOUND + 0x10*i, mode->surf_lower_bound[i]);
1373 OUTREG(SURFACE0_UPPER_BOUND + 0x10*i, mode->surf_upper_bound[i]);
1374 OUTREG(SURFACE0_INFO + 0x10*i, mode->surf_info[i]);
1377 OUTREG(CRTC_GEN_CNTL, mode->crtc_gen_cntl);
1378 OUTREGP(CRTC_EXT_CNTL, mode->crtc_ext_cntl,
1379 ~(CRTC_HSYNC_DIS | CRTC_VSYNC_DIS | CRTC_DISPLAY_DIS));
1380 OUTREG(CRTC_MORE_CNTL, mode->crtc_more_cntl);
1381 OUTREGP(DAC_CNTL, mode->dac_cntl, DAC_RANGE_CNTL | DAC_BLANKING);
1382 OUTREG(CRTC_H_TOTAL_DISP, mode->crtc_h_total_disp);
1383 OUTREG(CRTC_H_SYNC_STRT_WID, mode->crtc_h_sync_strt_wid);
1384 OUTREG(CRTC_V_TOTAL_DISP, mode->crtc_v_total_disp);
1385 OUTREG(CRTC_V_SYNC_STRT_WID, mode->crtc_v_sync_strt_wid);
1386 OUTREG(CRTC_OFFSET, 0);
1387 OUTREG(CRTC_OFFSET_CNTL, 0);
1388 OUTREG(CRTC_PITCH, mode->crtc_pitch);
1389 OUTREG(SURFACE_CNTL, mode->surface_cntl);
1391 radeon_write_pll_regs(rinfo, mode);
1393 if ((primary_mon == MT_DFP) || (primary_mon == MT_LCD)) {
1394 radeon_fifo_wait(10);
1395 OUTREG(FP_CRTC_H_TOTAL_DISP, mode->fp_crtc_h_total_disp);
1396 OUTREG(FP_CRTC_V_TOTAL_DISP, mode->fp_crtc_v_total_disp);
1397 OUTREG(FP_H_SYNC_STRT_WID, mode->fp_h_sync_strt_wid);
1398 OUTREG(FP_V_SYNC_STRT_WID, mode->fp_v_sync_strt_wid);
1399 OUTREG(FP_HORZ_STRETCH, mode->fp_horz_stretch);
1400 OUTREG(FP_VERT_STRETCH, mode->fp_vert_stretch);
1401 OUTREG(FP_GEN_CNTL, mode->fp_gen_cntl);
1402 OUTREG(TMDS_CRC, mode->tmds_crc);
1403 OUTREG(TMDS_TRANSMITTER_CNTL, mode->tmds_transmitter_cntl);
1407 radeon_screen_blank(rinfo, FB_BLANK_UNBLANK, 0);
1409 radeon_fifo_wait(2);
1410 OUTPLL(VCLK_ECP_CNTL, mode->vclk_ecp_cntl);
1416 * Calculate the PLL values for a given mode
1418 static void radeon_calc_pll_regs(struct radeonfb_info *rinfo, struct radeon_regs *regs,
1436 int fb_div, pll_output_freq = 0;
1439 /* Check if the DVO port is enabled and sourced from the primary CRTC. I'm
1440 * not sure which model starts having FP2_GEN_CNTL, I assume anything more
1441 * recent than an r(v)100...
1444 /* XXX I had reports of flicker happening with the cinema display
1445 * on TMDS1 that seem to be fixed if I also forbit odd dividers in
1446 * this case. This could just be a bandwidth calculation issue, I
1447 * haven't implemented the bandwidth code yet, but in the meantime,
1448 * forcing uses_dvo to 1 fixes it and shouln't have bad side effects,
1449 * I haven't seen a case were were absolutely needed an odd PLL
1450 * divider. I'll find a better fix once I have more infos on the
1451 * real cause of the problem.
1453 while (rinfo->has_CRTC2) {
1454 u32 fp2_gen_cntl = INREG(FP2_GEN_CNTL);
1455 u32 disp_output_cntl;
1458 /* FP2 path not enabled */
1459 if ((fp2_gen_cntl & FP2_ON) == 0)
1461 /* Not all chip revs have the same format for this register,
1462 * extract the source selection
1464 if (rinfo->family == CHIP_FAMILY_R200 ||
1465 rinfo->family == CHIP_FAMILY_R300 ||
1466 rinfo->family == CHIP_FAMILY_R350 ||
1467 rinfo->family == CHIP_FAMILY_RV350) {
1468 source = (fp2_gen_cntl >> 10) & 0x3;
1469 /* sourced from transform unit, check for transform unit
1473 disp_output_cntl = INREG(DISP_OUTPUT_CNTL);
1474 source = (disp_output_cntl >> 12) & 0x3;
1477 source = (fp2_gen_cntl >> 13) & 0x1;
1478 /* sourced from CRTC2 -> exit */
1482 /* so we end up on CRTC1, let's set uses_dvo to 1 now */
1489 if (freq > rinfo->pll.ppll_max)
1490 freq = rinfo->pll.ppll_max;
1491 if (freq*12 < rinfo->pll.ppll_min)
1492 freq = rinfo->pll.ppll_min / 12;
1493 pr_debug("freq = %lu, PLL min = %u, PLL max = %u\n",
1494 freq, rinfo->pll.ppll_min, rinfo->pll.ppll_max);
1496 for (post_div = &post_divs[0]; post_div->divider; ++post_div) {
1497 pll_output_freq = post_div->divider * freq;
1498 /* If we output to the DVO port (external TMDS), we don't allow an
1499 * odd PLL divider as those aren't supported on this path
1501 if (uses_dvo && (post_div->divider & 1))
1503 if (pll_output_freq >= rinfo->pll.ppll_min &&
1504 pll_output_freq <= rinfo->pll.ppll_max)
1508 /* If we fall through the bottom, try the "default value"
1509 given by the terminal post_div->bitvalue */
1510 if ( !post_div->divider ) {
1511 post_div = &post_divs[post_div->bitvalue];
1512 pll_output_freq = post_div->divider * freq;
1514 pr_debug("ref_div = %d, ref_clk = %d, output_freq = %d\n",
1515 rinfo->pll.ref_div, rinfo->pll.ref_clk,
1518 /* If we fall through the bottom, try the "default value"
1519 given by the terminal post_div->bitvalue */
1520 if ( !post_div->divider ) {
1521 post_div = &post_divs[post_div->bitvalue];
1522 pll_output_freq = post_div->divider * freq;
1524 pr_debug("ref_div = %d, ref_clk = %d, output_freq = %d\n",
1525 rinfo->pll.ref_div, rinfo->pll.ref_clk,
1528 fb_div = round_div(rinfo->pll.ref_div*pll_output_freq,
1529 rinfo->pll.ref_clk);
1530 regs->ppll_ref_div = rinfo->pll.ref_div;
1531 regs->ppll_div_3 = fb_div | (post_div->bitvalue << 16);
1533 pr_debug("post div = 0x%x\n", post_div->bitvalue);
1534 pr_debug("fb_div = 0x%x\n", fb_div);
1535 pr_debug("ppll_div_3 = 0x%x\n", regs->ppll_div_3);
1538 static int radeonfb_set_par(struct fb_info *info)
1540 struct radeonfb_info *rinfo = info->par;
1541 struct fb_var_screeninfo *mode = &info->var;
1542 struct radeon_regs *newmode;
1543 int hTotal, vTotal, hSyncStart, hSyncEnd,
1544 hSyncPol, vSyncStart, vSyncEnd, vSyncPol, cSync;
1545 u8 hsync_adj_tab[] = {0, 0x12, 9, 9, 6, 5};
1546 u8 hsync_fudge_fp[] = {2, 2, 0, 0, 5, 5};
1547 u32 sync, h_sync_pol, v_sync_pol, dotClock, pixClock;
1551 int hsync_start, hsync_fudge, bytpp, hsync_wid, vsync_wid;
1552 int primary_mon = PRIMARY_MONITOR(rinfo);
1553 int depth = var_to_depth(mode);
1556 newmode = kmalloc(sizeof(struct radeon_regs), GFP_KERNEL);
1560 /* We always want engine to be idle on a mode switch, even
1561 * if we won't actually change the mode
1563 radeon_engine_idle();
1565 hSyncStart = mode->xres + mode->right_margin;
1566 hSyncEnd = hSyncStart + mode->hsync_len;
1567 hTotal = hSyncEnd + mode->left_margin;
1569 vSyncStart = mode->yres + mode->lower_margin;
1570 vSyncEnd = vSyncStart + mode->vsync_len;
1571 vTotal = vSyncEnd + mode->upper_margin;
1572 pixClock = mode->pixclock;
1575 h_sync_pol = sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1;
1576 v_sync_pol = sync & FB_SYNC_VERT_HIGH_ACT ? 0 : 1;
1578 if (primary_mon == MT_DFP || primary_mon == MT_LCD) {
1579 if (rinfo->panel_info.xres < mode->xres)
1580 mode->xres = rinfo->panel_info.xres;
1581 if (rinfo->panel_info.yres < mode->yres)
1582 mode->yres = rinfo->panel_info.yres;
1584 hTotal = mode->xres + rinfo->panel_info.hblank;
1585 hSyncStart = mode->xres + rinfo->panel_info.hOver_plus;
1586 hSyncEnd = hSyncStart + rinfo->panel_info.hSync_width;
1588 vTotal = mode->yres + rinfo->panel_info.vblank;
1589 vSyncStart = mode->yres + rinfo->panel_info.vOver_plus;
1590 vSyncEnd = vSyncStart + rinfo->panel_info.vSync_width;
1592 h_sync_pol = !rinfo->panel_info.hAct_high;
1593 v_sync_pol = !rinfo->panel_info.vAct_high;
1595 pixClock = 100000000 / rinfo->panel_info.clock;
1597 if (rinfo->panel_info.use_bios_dividers) {
1599 newmode->ppll_div_3 = rinfo->panel_info.fbk_divider |
1600 (rinfo->panel_info.post_divider << 16);
1601 newmode->ppll_ref_div = rinfo->panel_info.ref_divider;
1604 dotClock = 1000000000 / pixClock;
1605 freq = dotClock / 10; /* x100 */
1607 pr_debug("hStart = %d, hEnd = %d, hTotal = %d\n",
1608 hSyncStart, hSyncEnd, hTotal);
1609 pr_debug("vStart = %d, vEnd = %d, vTotal = %d\n",
1610 vSyncStart, vSyncEnd, vTotal);
1612 hsync_wid = (hSyncEnd - hSyncStart) / 8;
1613 vsync_wid = vSyncEnd - vSyncStart;
1616 else if (hsync_wid > 0x3f) /* max */
1621 else if (vsync_wid > 0x1f) /* max */
1624 hSyncPol = mode->sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1;
1625 vSyncPol = mode->sync & FB_SYNC_VERT_HIGH_ACT ? 0 : 1;
1627 cSync = mode->sync & FB_SYNC_COMP_HIGH_ACT ? (1 << 4) : 0;
1629 format = radeon_get_dstbpp(depth);
1630 bytpp = mode->bits_per_pixel >> 3;
1632 if ((primary_mon == MT_DFP) || (primary_mon == MT_LCD))
1633 hsync_fudge = hsync_fudge_fp[format-1];
1635 hsync_fudge = hsync_adj_tab[format-1];
1637 hsync_start = hSyncStart - 8 + hsync_fudge;
1639 newmode->crtc_gen_cntl = CRTC_EXT_DISP_EN | CRTC_EN |
1642 /* Clear auto-center etc... */
1643 newmode->crtc_more_cntl = rinfo->init_state.crtc_more_cntl;
1644 newmode->crtc_more_cntl &= 0xfffffff0;
1646 if ((primary_mon == MT_DFP) || (primary_mon == MT_LCD)) {
1647 newmode->crtc_ext_cntl = VGA_ATI_LINEAR | XCRT_CNT_EN;
1649 newmode->crtc_ext_cntl |= CRTC_CRT_ON;
1651 newmode->crtc_gen_cntl &= ~(CRTC_DBL_SCAN_EN |
1654 newmode->crtc_ext_cntl = VGA_ATI_LINEAR | XCRT_CNT_EN |
1658 newmode->dac_cntl = /* INREG(DAC_CNTL) | */ DAC_MASK_ALL | DAC_VGA_ADR_EN |
1661 newmode->crtc_h_total_disp = ((((hTotal / 8) - 1) & 0x3ff) |
1662 (((mode->xres / 8) - 1) << 16));
1664 newmode->crtc_h_sync_strt_wid = ((hsync_start & 0x1fff) |
1665 (hsync_wid << 16) | (h_sync_pol << 23));
1667 newmode->crtc_v_total_disp = ((vTotal - 1) & 0xffff) |
1668 ((mode->yres - 1) << 16);
1670 newmode->crtc_v_sync_strt_wid = (((vSyncStart - 1) & 0xfff) |
1671 (vsync_wid << 16) | (v_sync_pol << 23));
1673 if (!(info->flags & FBINFO_HWACCEL_DISABLED)) {
1674 /* We first calculate the engine pitch */
1675 rinfo->pitch = ((mode->xres_virtual * ((mode->bits_per_pixel + 1) / 8) + 0x3f)
1678 /* Then, re-multiply it to get the CRTC pitch */
1679 newmode->crtc_pitch = (rinfo->pitch << 3) / ((mode->bits_per_pixel + 1) / 8);
1681 newmode->crtc_pitch = (mode->xres_virtual >> 3);
1683 newmode->crtc_pitch |= (newmode->crtc_pitch << 16);
1686 * It looks like recent chips have a problem with SURFACE_CNTL,
1687 * setting SURF_TRANSLATION_DIS completely disables the
1688 * swapper as well, so we leave it unset now.
1690 newmode->surface_cntl = 0;
1692 #if defined(__BIG_ENDIAN)
1694 /* Setup swapping on both apertures, though we currently
1695 * only use aperture 0, enabling swapper on aperture 1
1698 switch (mode->bits_per_pixel) {
1700 newmode->surface_cntl |= NONSURF_AP0_SWP_16BPP;
1701 newmode->surface_cntl |= NONSURF_AP1_SWP_16BPP;
1705 newmode->surface_cntl |= NONSURF_AP0_SWP_32BPP;
1706 newmode->surface_cntl |= NONSURF_AP1_SWP_32BPP;
1711 /* Clear surface registers */
1712 for (i=0; i<8; i++) {
1713 newmode->surf_lower_bound[i] = 0;
1714 newmode->surf_upper_bound[i] = 0x1f;
1715 newmode->surf_info[i] = 0;
1718 pr_debug("h_total_disp = 0x%x\t hsync_strt_wid = 0x%x\n",
1719 newmode->crtc_h_total_disp, newmode->crtc_h_sync_strt_wid);
1720 pr_debug("v_total_disp = 0x%x\t vsync_strt_wid = 0x%x\n",
1721 newmode->crtc_v_total_disp, newmode->crtc_v_sync_strt_wid);
1723 rinfo->bpp = mode->bits_per_pixel;
1724 rinfo->depth = depth;
1726 pr_debug("pixclock = %lu\n", (unsigned long)pixClock);
1727 pr_debug("freq = %lu\n", (unsigned long)freq);
1729 /* We use PPLL_DIV_3 */
1730 newmode->clk_cntl_index = 0x300;
1732 /* Calculate PPLL value if necessary */
1734 radeon_calc_pll_regs(rinfo, newmode, freq);
1736 newmode->vclk_ecp_cntl = rinfo->init_state.vclk_ecp_cntl;
1738 if ((primary_mon == MT_DFP) || (primary_mon == MT_LCD)) {
1739 unsigned int hRatio, vRatio;
1741 if (mode->xres > rinfo->panel_info.xres)
1742 mode->xres = rinfo->panel_info.xres;
1743 if (mode->yres > rinfo->panel_info.yres)
1744 mode->yres = rinfo->panel_info.yres;
1746 newmode->fp_horz_stretch = (((rinfo->panel_info.xres / 8) - 1)
1747 << HORZ_PANEL_SHIFT);
1748 newmode->fp_vert_stretch = ((rinfo->panel_info.yres - 1)
1749 << VERT_PANEL_SHIFT);
1751 if (mode->xres != rinfo->panel_info.xres) {
1752 hRatio = round_div(mode->xres * HORZ_STRETCH_RATIO_MAX,
1753 rinfo->panel_info.xres);
1754 newmode->fp_horz_stretch = (((((unsigned long)hRatio) & HORZ_STRETCH_RATIO_MASK)) |
1755 (newmode->fp_horz_stretch &
1756 (HORZ_PANEL_SIZE | HORZ_FP_LOOP_STRETCH |
1757 HORZ_AUTO_RATIO_INC)));
1758 newmode->fp_horz_stretch |= (HORZ_STRETCH_BLEND |
1759 HORZ_STRETCH_ENABLE);
1762 newmode->fp_horz_stretch &= ~HORZ_AUTO_RATIO;
1764 if (mode->yres != rinfo->panel_info.yres) {
1765 vRatio = round_div(mode->yres * VERT_STRETCH_RATIO_MAX,
1766 rinfo->panel_info.yres);
1767 newmode->fp_vert_stretch = (((((unsigned long)vRatio) & VERT_STRETCH_RATIO_MASK)) |
1768 (newmode->fp_vert_stretch &
1769 (VERT_PANEL_SIZE | VERT_STRETCH_RESERVED)));
1770 newmode->fp_vert_stretch |= (VERT_STRETCH_BLEND |
1771 VERT_STRETCH_ENABLE);
1774 newmode->fp_vert_stretch &= ~VERT_AUTO_RATIO_EN;
1776 newmode->fp_gen_cntl = (rinfo->init_state.fp_gen_cntl & (u32)
1778 FP_RMX_HVSYNC_CONTROL_EN |
1783 FP_CRTC_USE_SHADOW_VEND |
1786 newmode->fp_gen_cntl |= (FP_CRTC_DONT_SHADOW_VPAR |
1787 FP_CRTC_DONT_SHADOW_HEND |
1790 if (IS_R300_VARIANT(rinfo) ||
1791 (rinfo->family == CHIP_FAMILY_R200)) {
1792 newmode->fp_gen_cntl &= ~R200_FP_SOURCE_SEL_MASK;
1794 newmode->fp_gen_cntl |= R200_FP_SOURCE_SEL_RMX;
1796 newmode->fp_gen_cntl |= R200_FP_SOURCE_SEL_CRTC1;
1798 newmode->fp_gen_cntl |= FP_SEL_CRTC1;
1800 newmode->lvds_gen_cntl = rinfo->init_state.lvds_gen_cntl;
1801 newmode->lvds_pll_cntl = rinfo->init_state.lvds_pll_cntl;
1802 newmode->tmds_crc = rinfo->init_state.tmds_crc;
1803 newmode->tmds_transmitter_cntl = rinfo->init_state.tmds_transmitter_cntl;
1805 if (primary_mon == MT_LCD) {
1806 newmode->lvds_gen_cntl |= (LVDS_ON | LVDS_BLON);
1807 newmode->fp_gen_cntl &= ~(FP_FPON | FP_TMDS_EN);
1810 newmode->fp_gen_cntl |= (FP_FPON | FP_TMDS_EN);
1811 newmode->tmds_transmitter_cntl &= ~(TMDS_PLLRST);
1812 /* TMDS_PLL_EN bit is reversed on RV (and mobility) chips */
1813 if (IS_R300_VARIANT(rinfo) ||
1814 (rinfo->family == CHIP_FAMILY_R200) || !rinfo->has_CRTC2)
1815 newmode->tmds_transmitter_cntl &= ~TMDS_PLL_EN;
1817 newmode->tmds_transmitter_cntl |= TMDS_PLL_EN;
1818 newmode->crtc_ext_cntl &= ~CRTC_CRT_ON;
1821 newmode->fp_crtc_h_total_disp = (((rinfo->panel_info.hblank / 8) & 0x3ff) |
1822 (((mode->xres / 8) - 1) << 16));
1823 newmode->fp_crtc_v_total_disp = (rinfo->panel_info.vblank & 0xffff) |
1824 ((mode->yres - 1) << 16);
1825 newmode->fp_h_sync_strt_wid = ((rinfo->panel_info.hOver_plus & 0x1fff) |
1826 (hsync_wid << 16) | (h_sync_pol << 23));
1827 newmode->fp_v_sync_strt_wid = ((rinfo->panel_info.vOver_plus & 0xfff) |
1828 (vsync_wid << 16) | (v_sync_pol << 23));
1832 if (!rinfo->asleep) {
1833 memcpy(&rinfo->state, newmode, sizeof(*newmode));
1834 radeon_write_mode (rinfo, newmode, 0);
1835 /* (re)initialize the engine */
1836 if (!(info->flags & FBINFO_HWACCEL_DISABLED))
1837 radeonfb_engine_init (rinfo);
1840 if (!(info->flags & FBINFO_HWACCEL_DISABLED))
1841 info->fix.line_length = rinfo->pitch*64;
1843 info->fix.line_length = mode->xres_virtual
1844 * ((mode->bits_per_pixel + 1) / 8);
1845 info->fix.visual = rinfo->depth == 8 ? FB_VISUAL_PSEUDOCOLOR
1846 : FB_VISUAL_DIRECTCOLOR;
1848 #ifdef CONFIG_BOOTX_TEXT
1849 /* Update debug text engine */
1850 btext_update_display(rinfo->fb_base_phys, mode->xres, mode->yres,
1851 rinfo->depth, info->fix.line_length);
1859 static struct fb_ops radeonfb_ops = {
1860 .owner = THIS_MODULE,
1861 .fb_check_var = radeonfb_check_var,
1862 .fb_set_par = radeonfb_set_par,
1863 .fb_setcolreg = radeonfb_setcolreg,
1864 .fb_setcmap = radeonfb_setcmap,
1865 .fb_pan_display = radeonfb_pan_display,
1866 .fb_blank = radeonfb_blank,
1867 .fb_ioctl = radeonfb_ioctl,
1868 .fb_sync = radeonfb_sync,
1869 .fb_fillrect = radeonfb_fillrect,
1870 .fb_copyarea = radeonfb_copyarea,
1871 .fb_imageblit = radeonfb_imageblit,
1875 static int __devinit radeon_set_fbinfo (struct radeonfb_info *rinfo)
1877 struct fb_info *info = rinfo->info;
1880 info->pseudo_palette = rinfo->pseudo_palette;
1881 info->flags = FBINFO_DEFAULT
1882 | FBINFO_HWACCEL_COPYAREA
1883 | FBINFO_HWACCEL_FILLRECT
1884 | FBINFO_HWACCEL_XPAN
1885 | FBINFO_HWACCEL_YPAN;
1886 info->fbops = &radeonfb_ops;
1887 info->screen_base = rinfo->fb_base;
1888 info->screen_size = rinfo->mapped_vram;
1889 /* Fill fix common fields */
1890 strlcpy(info->fix.id, rinfo->name, sizeof(info->fix.id));
1891 info->fix.smem_start = rinfo->fb_base_phys;
1892 info->fix.smem_len = rinfo->video_ram;
1893 info->fix.type = FB_TYPE_PACKED_PIXELS;
1894 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
1895 info->fix.xpanstep = 8;
1896 info->fix.ypanstep = 1;
1897 info->fix.ywrapstep = 0;
1898 info->fix.type_aux = 0;
1899 info->fix.mmio_start = rinfo->mmio_base_phys;
1900 info->fix.mmio_len = RADEON_REGSIZE;
1901 info->fix.accel = FB_ACCEL_ATI_RADEON;
1903 fb_alloc_cmap(&info->cmap, 256, 0);
1906 info->flags |= FBINFO_HWACCEL_DISABLED;
1912 * This reconfigure the card's internal memory map. In theory, we'd like
1913 * to setup the card's memory at the same address as it's PCI bus address,
1914 * and the AGP aperture right after that so that system RAM on 32 bits
1915 * machines at least, is directly accessible. However, doing so would
1916 * conflict with the current XFree drivers...
1917 * Ultimately, I hope XFree, GATOS and ATI binary drivers will all agree
1918 * on the proper way to set this up and duplicate this here. In the meantime,
1919 * I put the card's memory at 0 in card space and AGP at some random high
1920 * local (0xe0000000 for now) that will be changed by XFree/DRI anyway
1922 #ifdef CONFIG_PPC_OF
1923 #undef SET_MC_FB_FROM_APERTURE
1924 static void fixup_memory_mappings(struct radeonfb_info *rinfo)
1926 u32 save_crtc_gen_cntl, save_crtc2_gen_cntl = 0;
1927 u32 save_crtc_ext_cntl;
1928 u32 aper_base, aper_size;
1931 /* First, we disable display to avoid interfering */
1932 if (rinfo->has_CRTC2) {
1933 save_crtc2_gen_cntl = INREG(CRTC2_GEN_CNTL);
1934 OUTREG(CRTC2_GEN_CNTL, save_crtc2_gen_cntl | CRTC2_DISP_REQ_EN_B);
1936 save_crtc_gen_cntl = INREG(CRTC_GEN_CNTL);
1937 save_crtc_ext_cntl = INREG(CRTC_EXT_CNTL);
1939 OUTREG(CRTC_EXT_CNTL, save_crtc_ext_cntl | CRTC_DISPLAY_DIS);
1940 OUTREG(CRTC_GEN_CNTL, save_crtc_gen_cntl | CRTC_DISP_REQ_EN_B);
1943 aper_base = INREG(CONFIG_APER_0_BASE);
1944 aper_size = INREG(CONFIG_APER_SIZE);
1946 #ifdef SET_MC_FB_FROM_APERTURE
1947 /* Set framebuffer to be at the same address as set in PCI BAR */
1948 OUTREG(MC_FB_LOCATION,
1949 ((aper_base + aper_size - 1) & 0xffff0000) | (aper_base >> 16));
1950 rinfo->fb_local_base = aper_base;
1952 OUTREG(MC_FB_LOCATION, 0x7fff0000);
1953 rinfo->fb_local_base = 0;
1955 agp_base = aper_base + aper_size;
1956 if (agp_base & 0xf0000000)
1957 agp_base = (aper_base | 0x0fffffff) + 1;
1959 /* Set AGP to be just after the framebuffer on a 256Mb boundary. This
1960 * assumes the FB isn't mapped to 0xf0000000 or above, but this is
1961 * always the case on PPCs afaik.
1963 #ifdef SET_MC_FB_FROM_APERTURE
1964 OUTREG(MC_AGP_LOCATION, 0xffff0000 | (agp_base >> 16));
1966 OUTREG(MC_AGP_LOCATION, 0xffffe000);
1969 /* Fixup the display base addresses & engine offsets while we
1972 #ifdef SET_MC_FB_FROM_APERTURE
1973 OUTREG(DISPLAY_BASE_ADDR, aper_base);
1974 if (rinfo->has_CRTC2)
1975 OUTREG(CRTC2_DISPLAY_BASE_ADDR, aper_base);
1976 OUTREG(OV0_BASE_ADDR, aper_base);
1978 OUTREG(DISPLAY_BASE_ADDR, 0);
1979 if (rinfo->has_CRTC2)
1980 OUTREG(CRTC2_DISPLAY_BASE_ADDR, 0);
1981 OUTREG(OV0_BASE_ADDR, 0);
1985 /* Restore display settings */
1986 OUTREG(CRTC_GEN_CNTL, save_crtc_gen_cntl);
1987 OUTREG(CRTC_EXT_CNTL, save_crtc_ext_cntl);
1988 if (rinfo->has_CRTC2)
1989 OUTREG(CRTC2_GEN_CNTL, save_crtc2_gen_cntl);
1991 pr_debug("aper_base: %08x MC_FB_LOC to: %08x, MC_AGP_LOC to: %08x\n",
1993 ((aper_base + aper_size - 1) & 0xffff0000) | (aper_base >> 16),
1994 0xffff0000 | (agp_base >> 16));
1996 #endif /* CONFIG_PPC_OF */
1999 static void radeon_identify_vram(struct radeonfb_info *rinfo)
2003 /* framebuffer size */
2004 if ((rinfo->family == CHIP_FAMILY_RS100) ||
2005 (rinfo->family == CHIP_FAMILY_RS200) ||
2006 (rinfo->family == CHIP_FAMILY_RS300) ||
2007 (rinfo->family == CHIP_FAMILY_RC410) ||
2008 (rinfo->family == CHIP_FAMILY_RS480) ) {
2009 u32 tom = INREG(NB_TOM);
2010 tmp = ((((tom >> 16) - (tom & 0xffff) + 1) << 6) * 1024);
2012 radeon_fifo_wait(6);
2013 OUTREG(MC_FB_LOCATION, tom);
2014 OUTREG(DISPLAY_BASE_ADDR, (tom & 0xffff) << 16);
2015 OUTREG(CRTC2_DISPLAY_BASE_ADDR, (tom & 0xffff) << 16);
2016 OUTREG(OV0_BASE_ADDR, (tom & 0xffff) << 16);
2018 /* This is supposed to fix the crtc2 noise problem. */
2019 OUTREG(GRPH2_BUFFER_CNTL, INREG(GRPH2_BUFFER_CNTL) & ~0x7f0000);
2021 if ((rinfo->family == CHIP_FAMILY_RS100) ||
2022 (rinfo->family == CHIP_FAMILY_RS200)) {
2023 /* This is to workaround the asic bug for RMX, some versions
2024 of BIOS dosen't have this register initialized correctly.
2026 OUTREGP(CRTC_MORE_CNTL, CRTC_H_CUTOFF_ACTIVE_EN,
2027 ~CRTC_H_CUTOFF_ACTIVE_EN);
2030 tmp = INREG(CONFIG_MEMSIZE);
2033 /* mem size is bits [28:0], mask off the rest */
2034 rinfo->video_ram = tmp & CONFIG_MEMSIZE_MASK;
2037 * Hack to get around some busted production M6's
2040 if (rinfo->video_ram == 0) {
2041 switch (rinfo->pdev->device) {
2042 case PCI_CHIP_RADEON_LY:
2043 case PCI_CHIP_RADEON_LZ:
2044 rinfo->video_ram = 8192 * 1024;
2053 * Now try to identify VRAM type
2055 if (rinfo->is_IGP || (rinfo->family >= CHIP_FAMILY_R300) ||
2056 (INREG(MEM_SDRAM_MODE_REG) & (1<<30)))
2057 rinfo->vram_ddr = 1;
2059 rinfo->vram_ddr = 0;
2061 tmp = INREG(MEM_CNTL);
2062 if (IS_R300_VARIANT(rinfo)) {
2063 tmp &= R300_MEM_NUM_CHANNELS_MASK;
2065 case 0: rinfo->vram_width = 64; break;
2066 case 1: rinfo->vram_width = 128; break;
2067 case 2: rinfo->vram_width = 256; break;
2068 default: rinfo->vram_width = 128; break;
2070 } else if ((rinfo->family == CHIP_FAMILY_RV100) ||
2071 (rinfo->family == CHIP_FAMILY_RS100) ||
2072 (rinfo->family == CHIP_FAMILY_RS200)){
2073 if (tmp & RV100_MEM_HALF_MODE)
2074 rinfo->vram_width = 32;
2076 rinfo->vram_width = 64;
2078 if (tmp & MEM_NUM_CHANNELS_MASK)
2079 rinfo->vram_width = 128;
2081 rinfo->vram_width = 64;
2084 /* This may not be correct, as some cards can have half of channel disabled
2085 * ToDo: identify these cases
2088 pr_debug("radeonfb (%s): Found %ldk of %s %d bits wide videoram\n",
2089 pci_name(rinfo->pdev),
2090 rinfo->video_ram / 1024,
2091 rinfo->vram_ddr ? "DDR" : "SDRAM",
2099 static ssize_t radeon_show_one_edid(char *buf, loff_t off, size_t count, const u8 *edid)
2101 return memory_read_from_buffer(buf, count, &off, edid, EDID_LENGTH);
2105 static ssize_t radeon_show_edid1(struct kobject *kobj,
2106 struct bin_attribute *bin_attr,
2107 char *buf, loff_t off, size_t count)
2109 struct device *dev = container_of(kobj, struct device, kobj);
2110 struct pci_dev *pdev = to_pci_dev(dev);
2111 struct fb_info *info = pci_get_drvdata(pdev);
2112 struct radeonfb_info *rinfo = info->par;
2114 return radeon_show_one_edid(buf, off, count, rinfo->mon1_EDID);
2118 static ssize_t radeon_show_edid2(struct kobject *kobj,
2119 struct bin_attribute *bin_attr,
2120 char *buf, loff_t off, size_t count)
2122 struct device *dev = container_of(kobj, struct device, kobj);
2123 struct pci_dev *pdev = to_pci_dev(dev);
2124 struct fb_info *info = pci_get_drvdata(pdev);
2125 struct radeonfb_info *rinfo = info->par;
2127 return radeon_show_one_edid(buf, off, count, rinfo->mon2_EDID);
2130 static struct bin_attribute edid1_attr = {
2135 .size = EDID_LENGTH,
2136 .read = radeon_show_edid1,
2139 static struct bin_attribute edid2_attr = {
2144 .size = EDID_LENGTH,
2145 .read = radeon_show_edid2,
2149 static int __devinit radeonfb_pci_register (struct pci_dev *pdev,
2150 const struct pci_device_id *ent)
2152 struct fb_info *info;
2153 struct radeonfb_info *rinfo;
2155 unsigned char c1, c2;
2158 pr_debug("radeonfb_pci_register BEGIN\n");
2160 /* Enable device in PCI config */
2161 ret = pci_enable_device(pdev);
2163 printk(KERN_ERR "radeonfb (%s): Cannot enable PCI device\n",
2168 info = framebuffer_alloc(sizeof(struct radeonfb_info), &pdev->dev);
2170 printk (KERN_ERR "radeonfb (%s): could not allocate memory\n",
2179 spin_lock_init(&rinfo->reg_lock);
2180 init_timer(&rinfo->lvds_timer);
2181 rinfo->lvds_timer.function = radeon_lvds_timer_func;
2182 rinfo->lvds_timer.data = (unsigned long)rinfo;
2184 c1 = ent->device >> 8;
2185 c2 = ent->device & 0xff;
2186 if (isprint(c1) && isprint(c2))
2187 snprintf(rinfo->name, sizeof(rinfo->name),
2188 "ATI Radeon %x \"%c%c\"", ent->device & 0xffff, c1, c2);
2190 snprintf(rinfo->name, sizeof(rinfo->name),
2191 "ATI Radeon %x", ent->device & 0xffff);
2193 rinfo->family = ent->driver_data & CHIP_FAMILY_MASK;
2194 rinfo->chipset = pdev->device;
2195 rinfo->has_CRTC2 = (ent->driver_data & CHIP_HAS_CRTC2) != 0;
2196 rinfo->is_mobility = (ent->driver_data & CHIP_IS_MOBILITY) != 0;
2197 rinfo->is_IGP = (ent->driver_data & CHIP_IS_IGP) != 0;
2199 /* Set base addrs */
2200 rinfo->fb_base_phys = pci_resource_start (pdev, 0);
2201 rinfo->mmio_base_phys = pci_resource_start (pdev, 2);
2203 /* request the mem regions */
2204 ret = pci_request_region(pdev, 0, "radeonfb framebuffer");
2206 printk( KERN_ERR "radeonfb (%s): cannot request region 0.\n",
2207 pci_name(rinfo->pdev));
2208 goto err_release_fb;
2211 ret = pci_request_region(pdev, 2, "radeonfb mmio");
2213 printk( KERN_ERR "radeonfb (%s): cannot request region 2.\n",
2214 pci_name(rinfo->pdev));
2215 goto err_release_pci0;
2218 /* map the regions */
2219 rinfo->mmio_base = ioremap(rinfo->mmio_base_phys, RADEON_REGSIZE);
2220 if (!rinfo->mmio_base) {
2221 printk(KERN_ERR "radeonfb (%s): cannot map MMIO\n",
2222 pci_name(rinfo->pdev));
2224 goto err_release_pci2;
2227 rinfo->fb_local_base = INREG(MC_FB_LOCATION) << 16;
2233 if (rinfo->family == CHIP_FAMILY_R300 &&
2234 (INREG(CONFIG_CNTL) & CFG_ATI_REV_ID_MASK)
2236 rinfo->errata |= CHIP_ERRATA_R300_CG;
2238 if (rinfo->family == CHIP_FAMILY_RV200 ||
2239 rinfo->family == CHIP_FAMILY_RS200)
2240 rinfo->errata |= CHIP_ERRATA_PLL_DUMMYREADS;
2242 if (rinfo->family == CHIP_FAMILY_RV100 ||
2243 rinfo->family == CHIP_FAMILY_RS100 ||
2244 rinfo->family == CHIP_FAMILY_RS200)
2245 rinfo->errata |= CHIP_ERRATA_PLL_DELAY;
2247 #if defined(CONFIG_PPC_OF) || defined(CONFIG_SPARC)
2248 /* On PPC, we obtain the OF device-node pointer to the firmware
2249 * data for this chip
2251 rinfo->of_node = pci_device_to_OF_node(pdev);
2252 if (rinfo->of_node == NULL)
2253 printk(KERN_WARNING "radeonfb (%s): Cannot match card to OF node !\n",
2254 pci_name(rinfo->pdev));
2256 #endif /* CONFIG_PPC_OF || CONFIG_SPARC */
2257 #ifdef CONFIG_PPC_OF
2258 /* On PPC, the firmware sets up a memory mapping that tends
2259 * to cause lockups when enabling the engine. We reconfigure
2260 * the card internal memory mappings properly
2262 fixup_memory_mappings(rinfo);
2263 #endif /* CONFIG_PPC_OF */
2265 /* Get VRAM size and type */
2266 radeon_identify_vram(rinfo);
2268 rinfo->mapped_vram = min_t(unsigned long, MAX_MAPPED_VRAM, rinfo->video_ram);
2271 rinfo->fb_base = ioremap (rinfo->fb_base_phys,
2272 rinfo->mapped_vram);
2273 } while (rinfo->fb_base == NULL &&
2274 ((rinfo->mapped_vram /= 2) >= MIN_MAPPED_VRAM));
2276 if (rinfo->fb_base == NULL) {
2277 printk (KERN_ERR "radeonfb (%s): cannot map FB\n",
2278 pci_name(rinfo->pdev));
2283 pr_debug("radeonfb (%s): mapped %ldk videoram\n", pci_name(rinfo->pdev),
2284 rinfo->mapped_vram/1024);
2287 * Map the BIOS ROM if any and retrieve PLL parameters from
2288 * the BIOS. We skip that on mobility chips as the real panel
2289 * values we need aren't in the ROM but in the BIOS image in
2290 * memory. This is definitely not the best meacnism though,
2291 * we really need the arch code to tell us which is the "primary"
2292 * video adapter to use the memory image (or better, the arch
2293 * should provide us a copy of the BIOS image to shield us from
2294 * archs who would store that elsewhere and/or could initialize
2295 * more than one adapter during boot).
2297 if (!rinfo->is_mobility)
2298 radeon_map_ROM(rinfo, pdev);
2301 * On x86, the primary display on laptop may have it's BIOS
2302 * ROM elsewhere, try to locate it at the legacy memory hole.
2303 * We probably need to make sure this is the primary display,
2304 * but that is difficult without some arch support.
2307 if (rinfo->bios_seg == NULL)
2308 radeon_find_mem_vbios(rinfo);
2311 /* If both above failed, try the BIOS ROM again for mobility
2314 if (rinfo->bios_seg == NULL && rinfo->is_mobility)
2315 radeon_map_ROM(rinfo, pdev);
2317 /* Get informations about the board's PLL */
2318 radeon_get_pllinfo(rinfo);
2320 #ifdef CONFIG_FB_RADEON_I2C
2321 /* Register I2C bus */
2322 radeon_create_i2c_busses(rinfo);
2325 /* set all the vital stuff */
2326 radeon_set_fbinfo (rinfo);
2328 /* Probe screen types */
2329 radeon_probe_screens(rinfo, monitor_layout, ignore_edid);
2331 /* Build mode list, check out panel native model */
2332 radeon_check_modes(rinfo, mode_option);
2334 /* Register some sysfs stuff (should be done better) */
2335 if (rinfo->mon1_EDID)
2336 err |= sysfs_create_bin_file(&rinfo->pdev->dev.kobj,
2338 if (rinfo->mon2_EDID)
2339 err |= sysfs_create_bin_file(&rinfo->pdev->dev.kobj,
2342 pr_warning("%s() Creating sysfs files failed, continuing\n",
2345 /* save current mode regs before we switch into the new one
2346 * so we can restore this upon __exit
2348 radeon_save_state (rinfo, &rinfo->init_state);
2349 memcpy(&rinfo->state, &rinfo->init_state, sizeof(struct radeon_regs));
2351 /* Setup Power Management capabilities */
2352 if (default_dynclk < -1) {
2353 /* -2 is special: means ON on mobility chips and do not
2356 radeonfb_pm_init(rinfo, rinfo->is_mobility ? 1 : -1, ignore_devlist, force_sleep);
2358 radeonfb_pm_init(rinfo, default_dynclk, ignore_devlist, force_sleep);
2360 pci_set_drvdata(pdev, info);
2362 /* Register with fbdev layer */
2363 ret = register_framebuffer(info);
2365 printk (KERN_ERR "radeonfb (%s): could not register framebuffer\n",
2366 pci_name(rinfo->pdev));
2371 rinfo->mtrr_hdl = nomtrr ? -1 : mtrr_add(rinfo->fb_base_phys,
2373 MTRR_TYPE_WRCOMB, 1);
2377 radeonfb_bl_init(rinfo);
2379 printk ("radeonfb (%s): %s\n", pci_name(rinfo->pdev), rinfo->name);
2381 if (rinfo->bios_seg)
2382 radeon_unmap_ROM(rinfo, pdev);
2383 pr_debug("radeonfb_pci_register END\n");
2387 iounmap(rinfo->fb_base);
2389 kfree(rinfo->mon1_EDID);
2390 kfree(rinfo->mon2_EDID);
2391 if (rinfo->mon1_modedb)
2392 fb_destroy_modedb(rinfo->mon1_modedb);
2393 fb_dealloc_cmap(&info->cmap);
2394 #ifdef CONFIG_FB_RADEON_I2C
2395 radeon_delete_i2c_busses(rinfo);
2397 if (rinfo->bios_seg)
2398 radeon_unmap_ROM(rinfo, pdev);
2399 iounmap(rinfo->mmio_base);
2401 pci_release_region(pdev, 2);
2403 pci_release_region(pdev, 0);
2405 framebuffer_release(info);
2413 static void __devexit radeonfb_pci_unregister (struct pci_dev *pdev)
2415 struct fb_info *info = pci_get_drvdata(pdev);
2416 struct radeonfb_info *rinfo = info->par;
2421 radeonfb_pm_exit(rinfo);
2423 if (rinfo->mon1_EDID)
2424 sysfs_remove_bin_file(&rinfo->pdev->dev.kobj, &edid1_attr);
2425 if (rinfo->mon2_EDID)
2426 sysfs_remove_bin_file(&rinfo->pdev->dev.kobj, &edid2_attr);
2429 /* restore original state
2431 * Doesn't quite work yet, I suspect if we come from a legacy
2432 * VGA mode (or worse, text mode), we need to do some VGA black
2433 * magic here that I know nothing about. --BenH
2435 radeon_write_mode (rinfo, &rinfo->init_state, 1);
2438 del_timer_sync(&rinfo->lvds_timer);
2441 if (rinfo->mtrr_hdl >= 0)
2442 mtrr_del(rinfo->mtrr_hdl, 0, 0);
2445 unregister_framebuffer(info);
2447 radeonfb_bl_exit(rinfo);
2449 iounmap(rinfo->mmio_base);
2450 iounmap(rinfo->fb_base);
2452 pci_release_region(pdev, 2);
2453 pci_release_region(pdev, 0);
2455 kfree(rinfo->mon1_EDID);
2456 kfree(rinfo->mon2_EDID);
2457 if (rinfo->mon1_modedb)
2458 fb_destroy_modedb(rinfo->mon1_modedb);
2459 #ifdef CONFIG_FB_RADEON_I2C
2460 radeon_delete_i2c_busses(rinfo);
2462 fb_dealloc_cmap(&info->cmap);
2463 framebuffer_release(info);
2467 static struct pci_driver radeonfb_driver = {
2469 .id_table = radeonfb_pci_table,
2470 .probe = radeonfb_pci_register,
2471 .remove = __devexit_p(radeonfb_pci_unregister),
2473 .suspend = radeonfb_pci_suspend,
2474 .resume = radeonfb_pci_resume,
2475 #endif /* CONFIG_PM */
2479 static int __init radeonfb_setup (char *options)
2483 if (!options || !*options)
2486 while ((this_opt = strsep (&options, ",")) != NULL) {
2490 if (!strncmp(this_opt, "noaccel", 7)) {
2492 } else if (!strncmp(this_opt, "mirror", 6)) {
2494 } else if (!strncmp(this_opt, "force_dfp", 9)) {
2496 } else if (!strncmp(this_opt, "panel_yres:", 11)) {
2497 panel_yres = simple_strtoul((this_opt+11), NULL, 0);
2498 } else if (!strncmp(this_opt, "backlight:", 10)) {
2499 backlight = simple_strtoul(this_opt+10, NULL, 0);
2501 } else if (!strncmp(this_opt, "nomtrr", 6)) {
2504 } else if (!strncmp(this_opt, "nomodeset", 9)) {
2506 } else if (!strncmp(this_opt, "force_measure_pll", 17)) {
2507 force_measure_pll = 1;
2508 } else if (!strncmp(this_opt, "ignore_edid", 11)) {
2510 #if defined(CONFIG_PM) && defined(CONFIG_X86)
2511 } else if (!strncmp(this_opt, "force_sleep", 11)) {
2513 } else if (!strncmp(this_opt, "ignore_devlist", 14)) {
2517 mode_option = this_opt;
2523 static int __init radeonfb_init (void)
2526 char *option = NULL;
2528 if (fb_get_options("radeonfb", &option))
2530 radeonfb_setup(option);
2532 return pci_register_driver (&radeonfb_driver);
2536 static void __exit radeonfb_exit (void)
2538 pci_unregister_driver (&radeonfb_driver);
2541 module_init(radeonfb_init);
2542 module_exit(radeonfb_exit);
2544 MODULE_AUTHOR("Ani Joshi");
2545 MODULE_DESCRIPTION("framebuffer driver for ATI Radeon chipset");
2546 MODULE_LICENSE("GPL");
2547 module_param(noaccel, bool, 0);
2548 module_param(default_dynclk, int, 0);
2549 MODULE_PARM_DESC(default_dynclk, "int: -2=enable on mobility only,-1=do not change,0=off,1=on");
2550 MODULE_PARM_DESC(noaccel, "bool: disable acceleration");
2551 module_param(nomodeset, bool, 0);
2552 MODULE_PARM_DESC(nomodeset, "bool: disable actual setting of video mode");
2553 module_param(mirror, bool, 0);
2554 MODULE_PARM_DESC(mirror, "bool: mirror the display to both monitors");
2555 module_param(force_dfp, bool, 0);
2556 MODULE_PARM_DESC(force_dfp, "bool: force display to dfp");
2557 module_param(ignore_edid, bool, 0);
2558 MODULE_PARM_DESC(ignore_edid, "bool: Ignore EDID data when doing DDC probe");
2559 module_param(monitor_layout, charp, 0);
2560 MODULE_PARM_DESC(monitor_layout, "Specify monitor mapping (like XFree86)");
2561 module_param(force_measure_pll, bool, 0);
2562 MODULE_PARM_DESC(force_measure_pll, "Force measurement of PLL (debug)");
2564 module_param(nomtrr, bool, 0);
2565 MODULE_PARM_DESC(nomtrr, "bool: disable use of MTRR registers");
2567 module_param(panel_yres, int, 0);
2568 MODULE_PARM_DESC(panel_yres, "int: set panel yres");
2569 module_param(mode_option, charp, 0);
2570 MODULE_PARM_DESC(mode_option, "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" ");
2571 #if defined(CONFIG_PM) && defined(CONFIG_X86)
2572 module_param(force_sleep, bool, 0);
2573 MODULE_PARM_DESC(force_sleep, "bool: force D2 sleep mode on all hardware");
2574 module_param(ignore_devlist, bool, 0);
2575 MODULE_PARM_DESC(ignore_devlist, "bool: ignore workarounds for bugs in specific laptops");