This source file includes following definitions.
- cdv_disable_vga
- cdv_output_init
- cdv_backlight_combination_mode
- cdv_get_max_backlight
- cdv_get_brightness
- cdv_set_brightness
- cdv_backlight_init
- CDV_MSG_READ32
- CDV_MSG_WRITE32
- cdv_init_pm
- cdv_errata
- cdv_save_display_registers
- cdv_restore_display_registers
- cdv_power_down
- cdv_power_up
- cdv_hotplug_work_func
- cdv_hotplug_event
- cdv_hotplug_enable
- cdv_intel_attach_force_audio_property
- cdv_intel_attach_broadcast_rgb_property
- cdv_chip_setup
1
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6
7
8 #include <linux/backlight.h>
9 #include <linux/delay.h>
10
11 #include <drm/drm.h>
12
13 #include "cdv_device.h"
14 #include "gma_device.h"
15 #include "intel_bios.h"
16 #include "psb_drv.h"
17 #include "psb_intel_reg.h"
18 #include "psb_reg.h"
19
20 #define VGA_SR_INDEX 0x3c4
21 #define VGA_SR_DATA 0x3c5
22
23 static void cdv_disable_vga(struct drm_device *dev)
24 {
25 u8 sr1;
26 u32 vga_reg;
27
28 vga_reg = VGACNTRL;
29
30 outb(1, VGA_SR_INDEX);
31 sr1 = inb(VGA_SR_DATA);
32 outb(sr1 | 1<<5, VGA_SR_DATA);
33 udelay(300);
34
35 REG_WRITE(vga_reg, VGA_DISP_DISABLE);
36 REG_READ(vga_reg);
37 }
38
39 static int cdv_output_init(struct drm_device *dev)
40 {
41 struct drm_psb_private *dev_priv = dev->dev_private;
42
43 drm_mode_create_scaling_mode_property(dev);
44
45 cdv_disable_vga(dev);
46
47 cdv_intel_crt_init(dev, &dev_priv->mode_dev);
48 cdv_intel_lvds_init(dev, &dev_priv->mode_dev);
49
50
51 if (REG_READ(SDVOB) & SDVO_DETECTED) {
52 cdv_hdmi_init(dev, &dev_priv->mode_dev, SDVOB);
53 if (REG_READ(DP_B) & DP_DETECTED)
54 cdv_intel_dp_init(dev, &dev_priv->mode_dev, DP_B);
55 }
56
57 if (REG_READ(SDVOC) & SDVO_DETECTED) {
58 cdv_hdmi_init(dev, &dev_priv->mode_dev, SDVOC);
59 if (REG_READ(DP_C) & DP_DETECTED)
60 cdv_intel_dp_init(dev, &dev_priv->mode_dev, DP_C);
61 }
62 return 0;
63 }
64
65 #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
66
67
68
69
70
71 static struct backlight_device *cdv_backlight_device;
72
73 static int cdv_backlight_combination_mode(struct drm_device *dev)
74 {
75 return REG_READ(BLC_PWM_CTL2) & PWM_LEGACY_MODE;
76 }
77
78 static u32 cdv_get_max_backlight(struct drm_device *dev)
79 {
80 u32 max = REG_READ(BLC_PWM_CTL);
81
82 if (max == 0) {
83 DRM_DEBUG_KMS("LVDS Panel PWM value is 0!\n");
84
85
86 return 1;
87 }
88
89 max >>= 16;
90 if (cdv_backlight_combination_mode(dev))
91 max *= 0xff;
92 return max;
93 }
94
95 static int cdv_get_brightness(struct backlight_device *bd)
96 {
97 struct drm_device *dev = bl_get_data(bd);
98 u32 val = REG_READ(BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
99
100 if (cdv_backlight_combination_mode(dev)) {
101 u8 lbpc;
102
103 val &= ~1;
104 pci_read_config_byte(dev->pdev, 0xF4, &lbpc);
105 val *= lbpc;
106 }
107 return (val * 100)/cdv_get_max_backlight(dev);
108
109 }
110
111 static int cdv_set_brightness(struct backlight_device *bd)
112 {
113 struct drm_device *dev = bl_get_data(bd);
114 int level = bd->props.brightness;
115 u32 blc_pwm_ctl;
116
117
118 if (level < 1)
119 level = 1;
120
121 level *= cdv_get_max_backlight(dev);
122 level /= 100;
123
124 if (cdv_backlight_combination_mode(dev)) {
125 u32 max = cdv_get_max_backlight(dev);
126 u8 lbpc;
127
128 lbpc = level * 0xfe / max + 1;
129 level /= lbpc;
130
131 pci_write_config_byte(dev->pdev, 0xF4, lbpc);
132 }
133
134 blc_pwm_ctl = REG_READ(BLC_PWM_CTL) & ~BACKLIGHT_DUTY_CYCLE_MASK;
135 REG_WRITE(BLC_PWM_CTL, (blc_pwm_ctl |
136 (level << BACKLIGHT_DUTY_CYCLE_SHIFT)));
137 return 0;
138 }
139
140 static const struct backlight_ops cdv_ops = {
141 .get_brightness = cdv_get_brightness,
142 .update_status = cdv_set_brightness,
143 };
144
145 static int cdv_backlight_init(struct drm_device *dev)
146 {
147 struct drm_psb_private *dev_priv = dev->dev_private;
148 struct backlight_properties props;
149
150 memset(&props, 0, sizeof(struct backlight_properties));
151 props.max_brightness = 100;
152 props.type = BACKLIGHT_PLATFORM;
153
154 cdv_backlight_device = backlight_device_register("psb-bl",
155 NULL, (void *)dev, &cdv_ops, &props);
156 if (IS_ERR(cdv_backlight_device))
157 return PTR_ERR(cdv_backlight_device);
158
159 cdv_backlight_device->props.brightness =
160 cdv_get_brightness(cdv_backlight_device);
161 backlight_update_status(cdv_backlight_device);
162 dev_priv->backlight_device = cdv_backlight_device;
163 dev_priv->backlight_enabled = true;
164 return 0;
165 }
166
167 #endif
168
169
170
171
172
173
174
175
176
177 static inline u32 CDV_MSG_READ32(int domain, uint port, uint offset)
178 {
179 int mcr = (0x10<<24) | (port << 16) | (offset << 8);
180 uint32_t ret_val = 0;
181 struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
182 pci_write_config_dword(pci_root, 0xD0, mcr);
183 pci_read_config_dword(pci_root, 0xD4, &ret_val);
184 pci_dev_put(pci_root);
185 return ret_val;
186 }
187
188 static inline void CDV_MSG_WRITE32(int domain, uint port, uint offset,
189 u32 value)
190 {
191 int mcr = (0x11<<24) | (port << 16) | (offset << 8) | 0xF0;
192 struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
193 pci_write_config_dword(pci_root, 0xD4, value);
194 pci_write_config_dword(pci_root, 0xD0, mcr);
195 pci_dev_put(pci_root);
196 }
197
198 #define PSB_PM_SSC 0x20
199 #define PSB_PM_SSS 0x30
200 #define PSB_PWRGT_GFX_ON 0x02
201 #define PSB_PWRGT_GFX_OFF 0x01
202 #define PSB_PWRGT_GFX_D0 0x00
203 #define PSB_PWRGT_GFX_D3 0x03
204
205 static void cdv_init_pm(struct drm_device *dev)
206 {
207 struct drm_psb_private *dev_priv = dev->dev_private;
208 u32 pwr_cnt;
209 int domain = pci_domain_nr(dev->pdev->bus);
210 int i;
211
212 dev_priv->apm_base = CDV_MSG_READ32(domain, PSB_PUNIT_PORT,
213 PSB_APMBA) & 0xFFFF;
214 dev_priv->ospm_base = CDV_MSG_READ32(domain, PSB_PUNIT_PORT,
215 PSB_OSPMBA) & 0xFFFF;
216
217
218 pwr_cnt = inl(dev_priv->apm_base + PSB_APM_CMD);
219
220
221 pwr_cnt &= ~PSB_PWRGT_GFX_MASK;
222 pwr_cnt |= PSB_PWRGT_GFX_ON;
223 outl(pwr_cnt, dev_priv->apm_base + PSB_APM_CMD);
224
225
226 for (i = 0; i < 5; i++) {
227 u32 pwr_sts = inl(dev_priv->apm_base + PSB_APM_STS);
228 if ((pwr_sts & PSB_PWRGT_GFX_MASK) == 0)
229 return;
230 udelay(10);
231 }
232 dev_err(dev->dev, "GPU: power management timed out.\n");
233 }
234
235 static void cdv_errata(struct drm_device *dev)
236 {
237
238
239
240
241
242
243
244
245 CDV_MSG_WRITE32(pci_domain_nr(dev->pdev->bus), 3, 0x30, 0x08027108);
246 }
247
248
249
250
251
252
253
254
255 static int cdv_save_display_registers(struct drm_device *dev)
256 {
257 struct drm_psb_private *dev_priv = dev->dev_private;
258 struct psb_save_area *regs = &dev_priv->regs;
259 struct drm_connector *connector;
260
261 dev_dbg(dev->dev, "Saving GPU registers.\n");
262
263 pci_read_config_byte(dev->pdev, 0xF4, ®s->cdv.saveLBB);
264
265 regs->cdv.saveDSPCLK_GATE_D = REG_READ(DSPCLK_GATE_D);
266 regs->cdv.saveRAMCLK_GATE_D = REG_READ(RAMCLK_GATE_D);
267
268 regs->cdv.saveDSPARB = REG_READ(DSPARB);
269 regs->cdv.saveDSPFW[0] = REG_READ(DSPFW1);
270 regs->cdv.saveDSPFW[1] = REG_READ(DSPFW2);
271 regs->cdv.saveDSPFW[2] = REG_READ(DSPFW3);
272 regs->cdv.saveDSPFW[3] = REG_READ(DSPFW4);
273 regs->cdv.saveDSPFW[4] = REG_READ(DSPFW5);
274 regs->cdv.saveDSPFW[5] = REG_READ(DSPFW6);
275
276 regs->cdv.saveADPA = REG_READ(ADPA);
277
278 regs->cdv.savePP_CONTROL = REG_READ(PP_CONTROL);
279 regs->cdv.savePFIT_PGM_RATIOS = REG_READ(PFIT_PGM_RATIOS);
280 regs->saveBLC_PWM_CTL = REG_READ(BLC_PWM_CTL);
281 regs->saveBLC_PWM_CTL2 = REG_READ(BLC_PWM_CTL2);
282 regs->cdv.saveLVDS = REG_READ(LVDS);
283
284 regs->cdv.savePFIT_CONTROL = REG_READ(PFIT_CONTROL);
285
286 regs->cdv.savePP_ON_DELAYS = REG_READ(PP_ON_DELAYS);
287 regs->cdv.savePP_OFF_DELAYS = REG_READ(PP_OFF_DELAYS);
288 regs->cdv.savePP_CYCLE = REG_READ(PP_CYCLE);
289
290 regs->cdv.saveVGACNTRL = REG_READ(VGACNTRL);
291
292 regs->cdv.saveIER = REG_READ(PSB_INT_ENABLE_R);
293 regs->cdv.saveIMR = REG_READ(PSB_INT_MASK_R);
294
295 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
296 connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF);
297
298 return 0;
299 }
300
301
302
303
304
305
306
307
308
309 static int cdv_restore_display_registers(struct drm_device *dev)
310 {
311 struct drm_psb_private *dev_priv = dev->dev_private;
312 struct psb_save_area *regs = &dev_priv->regs;
313 struct drm_connector *connector;
314 u32 temp;
315
316 pci_write_config_byte(dev->pdev, 0xF4, regs->cdv.saveLBB);
317
318 REG_WRITE(DSPCLK_GATE_D, regs->cdv.saveDSPCLK_GATE_D);
319 REG_WRITE(RAMCLK_GATE_D, regs->cdv.saveRAMCLK_GATE_D);
320
321
322 REG_WRITE(DPIO_CFG, 0);
323 REG_WRITE(DPIO_CFG, DPIO_MODE_SELECT_0 | DPIO_CMN_RESET_N);
324
325 temp = REG_READ(DPLL_A);
326 if ((temp & DPLL_SYNCLOCK_ENABLE) == 0) {
327 REG_WRITE(DPLL_A, temp | DPLL_SYNCLOCK_ENABLE);
328 REG_READ(DPLL_A);
329 }
330
331 temp = REG_READ(DPLL_B);
332 if ((temp & DPLL_SYNCLOCK_ENABLE) == 0) {
333 REG_WRITE(DPLL_B, temp | DPLL_SYNCLOCK_ENABLE);
334 REG_READ(DPLL_B);
335 }
336
337 udelay(500);
338
339 REG_WRITE(DSPFW1, regs->cdv.saveDSPFW[0]);
340 REG_WRITE(DSPFW2, regs->cdv.saveDSPFW[1]);
341 REG_WRITE(DSPFW3, regs->cdv.saveDSPFW[2]);
342 REG_WRITE(DSPFW4, regs->cdv.saveDSPFW[3]);
343 REG_WRITE(DSPFW5, regs->cdv.saveDSPFW[4]);
344 REG_WRITE(DSPFW6, regs->cdv.saveDSPFW[5]);
345
346 REG_WRITE(DSPARB, regs->cdv.saveDSPARB);
347 REG_WRITE(ADPA, regs->cdv.saveADPA);
348
349 REG_WRITE(BLC_PWM_CTL2, regs->saveBLC_PWM_CTL2);
350 REG_WRITE(LVDS, regs->cdv.saveLVDS);
351 REG_WRITE(PFIT_CONTROL, regs->cdv.savePFIT_CONTROL);
352 REG_WRITE(PFIT_PGM_RATIOS, regs->cdv.savePFIT_PGM_RATIOS);
353 REG_WRITE(BLC_PWM_CTL, regs->saveBLC_PWM_CTL);
354 REG_WRITE(PP_ON_DELAYS, regs->cdv.savePP_ON_DELAYS);
355 REG_WRITE(PP_OFF_DELAYS, regs->cdv.savePP_OFF_DELAYS);
356 REG_WRITE(PP_CYCLE, regs->cdv.savePP_CYCLE);
357 REG_WRITE(PP_CONTROL, regs->cdv.savePP_CONTROL);
358
359 REG_WRITE(VGACNTRL, regs->cdv.saveVGACNTRL);
360
361 REG_WRITE(PSB_INT_ENABLE_R, regs->cdv.saveIER);
362 REG_WRITE(PSB_INT_MASK_R, regs->cdv.saveIMR);
363
364
365 cdv_errata(dev);
366
367 drm_mode_config_reset(dev);
368
369 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
370 connector->funcs->dpms(connector, DRM_MODE_DPMS_ON);
371
372
373 drm_helper_resume_force_mode(dev);
374 return 0;
375 }
376
377 static int cdv_power_down(struct drm_device *dev)
378 {
379 struct drm_psb_private *dev_priv = dev->dev_private;
380 u32 pwr_cnt, pwr_mask, pwr_sts;
381 int tries = 5;
382
383 pwr_cnt = inl(dev_priv->apm_base + PSB_APM_CMD);
384 pwr_cnt &= ~PSB_PWRGT_GFX_MASK;
385 pwr_cnt |= PSB_PWRGT_GFX_OFF;
386 pwr_mask = PSB_PWRGT_GFX_MASK;
387
388 outl(pwr_cnt, dev_priv->apm_base + PSB_APM_CMD);
389
390 while (tries--) {
391 pwr_sts = inl(dev_priv->apm_base + PSB_APM_STS);
392 if ((pwr_sts & pwr_mask) == PSB_PWRGT_GFX_D3)
393 return 0;
394 udelay(10);
395 }
396 return 0;
397 }
398
399 static int cdv_power_up(struct drm_device *dev)
400 {
401 struct drm_psb_private *dev_priv = dev->dev_private;
402 u32 pwr_cnt, pwr_mask, pwr_sts;
403 int tries = 5;
404
405 pwr_cnt = inl(dev_priv->apm_base + PSB_APM_CMD);
406 pwr_cnt &= ~PSB_PWRGT_GFX_MASK;
407 pwr_cnt |= PSB_PWRGT_GFX_ON;
408 pwr_mask = PSB_PWRGT_GFX_MASK;
409
410 outl(pwr_cnt, dev_priv->apm_base + PSB_APM_CMD);
411
412 while (tries--) {
413 pwr_sts = inl(dev_priv->apm_base + PSB_APM_STS);
414 if ((pwr_sts & pwr_mask) == PSB_PWRGT_GFX_D0)
415 return 0;
416 udelay(10);
417 }
418 return 0;
419 }
420
421 static void cdv_hotplug_work_func(struct work_struct *work)
422 {
423 struct drm_psb_private *dev_priv = container_of(work, struct drm_psb_private,
424 hotplug_work);
425 struct drm_device *dev = dev_priv->dev;
426
427
428 drm_helper_hpd_irq_event(dev);
429 }
430
431
432
433
434 static int cdv_hotplug_event(struct drm_device *dev)
435 {
436 struct drm_psb_private *dev_priv = dev->dev_private;
437 schedule_work(&dev_priv->hotplug_work);
438 REG_WRITE(PORT_HOTPLUG_STAT, REG_READ(PORT_HOTPLUG_STAT));
439 return 1;
440 }
441
442 static void cdv_hotplug_enable(struct drm_device *dev, bool on)
443 {
444 if (on) {
445 u32 hotplug = REG_READ(PORT_HOTPLUG_EN);
446 hotplug |= HDMIB_HOTPLUG_INT_EN | HDMIC_HOTPLUG_INT_EN |
447 HDMID_HOTPLUG_INT_EN | CRT_HOTPLUG_INT_EN;
448 REG_WRITE(PORT_HOTPLUG_EN, hotplug);
449 } else {
450 REG_WRITE(PORT_HOTPLUG_EN, 0);
451 REG_WRITE(PORT_HOTPLUG_STAT, REG_READ(PORT_HOTPLUG_STAT));
452 }
453 }
454
455 static const char *force_audio_names[] = {
456 "off",
457 "auto",
458 "on",
459 };
460
461 void cdv_intel_attach_force_audio_property(struct drm_connector *connector)
462 {
463 struct drm_device *dev = connector->dev;
464 struct drm_psb_private *dev_priv = dev->dev_private;
465 struct drm_property *prop;
466 int i;
467
468 prop = dev_priv->force_audio_property;
469 if (prop == NULL) {
470 prop = drm_property_create(dev, DRM_MODE_PROP_ENUM,
471 "audio",
472 ARRAY_SIZE(force_audio_names));
473 if (prop == NULL)
474 return;
475
476 for (i = 0; i < ARRAY_SIZE(force_audio_names); i++)
477 drm_property_add_enum(prop, i-1, force_audio_names[i]);
478
479 dev_priv->force_audio_property = prop;
480 }
481 drm_object_attach_property(&connector->base, prop, 0);
482 }
483
484
485 static const char *broadcast_rgb_names[] = {
486 "Full",
487 "Limited 16:235",
488 };
489
490 void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector)
491 {
492 struct drm_device *dev = connector->dev;
493 struct drm_psb_private *dev_priv = dev->dev_private;
494 struct drm_property *prop;
495 int i;
496
497 prop = dev_priv->broadcast_rgb_property;
498 if (prop == NULL) {
499 prop = drm_property_create(dev, DRM_MODE_PROP_ENUM,
500 "Broadcast RGB",
501 ARRAY_SIZE(broadcast_rgb_names));
502 if (prop == NULL)
503 return;
504
505 for (i = 0; i < ARRAY_SIZE(broadcast_rgb_names); i++)
506 drm_property_add_enum(prop, i, broadcast_rgb_names[i]);
507
508 dev_priv->broadcast_rgb_property = prop;
509 }
510
511 drm_object_attach_property(&connector->base, prop, 0);
512 }
513
514
515 static const struct psb_offset cdv_regmap[2] = {
516 {
517 .fp0 = FPA0,
518 .fp1 = FPA1,
519 .cntr = DSPACNTR,
520 .conf = PIPEACONF,
521 .src = PIPEASRC,
522 .dpll = DPLL_A,
523 .dpll_md = DPLL_A_MD,
524 .htotal = HTOTAL_A,
525 .hblank = HBLANK_A,
526 .hsync = HSYNC_A,
527 .vtotal = VTOTAL_A,
528 .vblank = VBLANK_A,
529 .vsync = VSYNC_A,
530 .stride = DSPASTRIDE,
531 .size = DSPASIZE,
532 .pos = DSPAPOS,
533 .base = DSPABASE,
534 .surf = DSPASURF,
535 .addr = DSPABASE,
536 .status = PIPEASTAT,
537 .linoff = DSPALINOFF,
538 .tileoff = DSPATILEOFF,
539 .palette = PALETTE_A,
540 },
541 {
542 .fp0 = FPB0,
543 .fp1 = FPB1,
544 .cntr = DSPBCNTR,
545 .conf = PIPEBCONF,
546 .src = PIPEBSRC,
547 .dpll = DPLL_B,
548 .dpll_md = DPLL_B_MD,
549 .htotal = HTOTAL_B,
550 .hblank = HBLANK_B,
551 .hsync = HSYNC_B,
552 .vtotal = VTOTAL_B,
553 .vblank = VBLANK_B,
554 .vsync = VSYNC_B,
555 .stride = DSPBSTRIDE,
556 .size = DSPBSIZE,
557 .pos = DSPBPOS,
558 .base = DSPBBASE,
559 .surf = DSPBSURF,
560 .addr = DSPBBASE,
561 .status = PIPEBSTAT,
562 .linoff = DSPBLINOFF,
563 .tileoff = DSPBTILEOFF,
564 .palette = PALETTE_B,
565 }
566 };
567
568 static int cdv_chip_setup(struct drm_device *dev)
569 {
570 struct drm_psb_private *dev_priv = dev->dev_private;
571 INIT_WORK(&dev_priv->hotplug_work, cdv_hotplug_work_func);
572
573 if (pci_enable_msi(dev->pdev))
574 dev_warn(dev->dev, "Enabling MSI failed!\n");
575 dev_priv->regmap = cdv_regmap;
576 gma_get_core_freq(dev);
577 psb_intel_opregion_init(dev);
578 psb_intel_init_bios(dev);
579 cdv_hotplug_enable(dev, false);
580 return 0;
581 }
582
583
584
585 const struct psb_ops cdv_chip_ops = {
586 .name = "GMA3600/3650",
587 .accel_2d = 0,
588 .pipes = 2,
589 .crtcs = 2,
590 .hdmi_mask = (1 << 0) | (1 << 1),
591 .lvds_mask = (1 << 1),
592 .sdvo_mask = (1 << 0),
593 .cursor_needs_phys = 0,
594 .sgx_offset = MRST_SGX_OFFSET,
595 .chip_setup = cdv_chip_setup,
596 .errata = cdv_errata,
597
598 .crtc_helper = &cdv_intel_helper_funcs,
599 .crtc_funcs = &cdv_intel_crtc_funcs,
600 .clock_funcs = &cdv_clock_funcs,
601
602 .output_init = cdv_output_init,
603 .hotplug = cdv_hotplug_event,
604 .hotplug_enable = cdv_hotplug_enable,
605
606 #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
607 .backlight_init = cdv_backlight_init,
608 #endif
609
610 .init_pm = cdv_init_pm,
611 .save_regs = cdv_save_display_registers,
612 .restore_regs = cdv_restore_display_registers,
613 .save_crtc = gma_crtc_save,
614 .restore_crtc = gma_crtc_restore,
615 .power_down = cdv_power_down,
616 .power_up = cdv_power_up,
617 .update_wm = cdv_update_wm,
618 .disable_sr = cdv_disable_sr,
619 };