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1/*
2 * Copyright 2012 Red Hat Inc.
3 * Parts based on xf86-video-ast
4 * Copyright (c) 2005 ASPEED Technology Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
18 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
19 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20 * USE OR OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
24 * of the Software.
25 *
26 */
27/*
28 * Authors: Dave Airlie <airlied@redhat.com>
29 */
30
31#include <linux/export.h>
32#include <linux/pci.h>
33
34#include <drm/drm_atomic.h>
35#include <drm/drm_atomic_helper.h>
36#include <drm/drm_atomic_state_helper.h>
37#include <drm/drm_crtc.h>
38#include <drm/drm_crtc_helper.h>
39#include <drm/drm_fourcc.h>
40#include <drm/drm_gem_framebuffer_helper.h>
41#include <drm/drm_gem_vram_helper.h>
42#include <drm/drm_plane_helper.h>
43#include <drm/drm_probe_helper.h>
44#include <drm/drm_simple_kms_helper.h>
45
46#include "ast_drv.h"
47#include "ast_tables.h"
48
49static struct ast_i2c_chan *ast_i2c_create(struct drm_device *dev);
50static void ast_i2c_destroy(struct ast_i2c_chan *i2c);
51
52static inline void ast_load_palette_index(struct ast_private *ast,
53 u8 index, u8 red, u8 green,
54 u8 blue)
55{
56 ast_io_write8(ast, AST_IO_DAC_INDEX_WRITE, index);
57 ast_io_read8(ast, AST_IO_SEQ_PORT);
58 ast_io_write8(ast, AST_IO_DAC_DATA, red);
59 ast_io_read8(ast, AST_IO_SEQ_PORT);
60 ast_io_write8(ast, AST_IO_DAC_DATA, green);
61 ast_io_read8(ast, AST_IO_SEQ_PORT);
62 ast_io_write8(ast, AST_IO_DAC_DATA, blue);
63 ast_io_read8(ast, AST_IO_SEQ_PORT);
64}
65
66static void ast_crtc_load_lut(struct ast_private *ast, struct drm_crtc *crtc)
67{
68 u16 *r, *g, *b;
69 int i;
70
71 if (!crtc->enabled)
72 return;
73
74 r = crtc->gamma_store;
75 g = r + crtc->gamma_size;
76 b = g + crtc->gamma_size;
77
78 for (i = 0; i < 256; i++)
79 ast_load_palette_index(ast, i, *r++ >> 8, *g++ >> 8, *b++ >> 8);
80}
81
82static bool ast_get_vbios_mode_info(const struct drm_format_info *format,
83 const struct drm_display_mode *mode,
84 struct drm_display_mode *adjusted_mode,
85 struct ast_vbios_mode_info *vbios_mode)
86{
87 u32 refresh_rate_index = 0, refresh_rate;
88 const struct ast_vbios_enhtable *best = NULL;
89 u32 hborder, vborder;
90 bool check_sync;
91
92 switch (format->cpp[0] * 8) {
93 case 8:
94 vbios_mode->std_table = &vbios_stdtable[VGAModeIndex];
95 break;
96 case 16:
97 vbios_mode->std_table = &vbios_stdtable[HiCModeIndex];
98 break;
99 case 24:
100 case 32:
101 vbios_mode->std_table = &vbios_stdtable[TrueCModeIndex];
102 break;
103 default:
104 return false;
105 }
106
107 switch (mode->crtc_hdisplay) {
108 case 640:
109 vbios_mode->enh_table = &res_640x480[refresh_rate_index];
110 break;
111 case 800:
112 vbios_mode->enh_table = &res_800x600[refresh_rate_index];
113 break;
114 case 1024:
115 vbios_mode->enh_table = &res_1024x768[refresh_rate_index];
116 break;
117 case 1280:
118 if (mode->crtc_vdisplay == 800)
119 vbios_mode->enh_table = &res_1280x800[refresh_rate_index];
120 else
121 vbios_mode->enh_table = &res_1280x1024[refresh_rate_index];
122 break;
123 case 1360:
124 vbios_mode->enh_table = &res_1360x768[refresh_rate_index];
125 break;
126 case 1440:
127 vbios_mode->enh_table = &res_1440x900[refresh_rate_index];
128 break;
129 case 1600:
130 if (mode->crtc_vdisplay == 900)
131 vbios_mode->enh_table = &res_1600x900[refresh_rate_index];
132 else
133 vbios_mode->enh_table = &res_1600x1200[refresh_rate_index];
134 break;
135 case 1680:
136 vbios_mode->enh_table = &res_1680x1050[refresh_rate_index];
137 break;
138 case 1920:
139 if (mode->crtc_vdisplay == 1080)
140 vbios_mode->enh_table = &res_1920x1080[refresh_rate_index];
141 else
142 vbios_mode->enh_table = &res_1920x1200[refresh_rate_index];
143 break;
144 default:
145 return false;
146 }
147
148 refresh_rate = drm_mode_vrefresh(mode);
149 check_sync = vbios_mode->enh_table->flags & WideScreenMode;
150
151 while (1) {
152 const struct ast_vbios_enhtable *loop = vbios_mode->enh_table;
153
154 while (loop->refresh_rate != 0xff) {
155 if ((check_sync) &&
156 (((mode->flags & DRM_MODE_FLAG_NVSYNC) &&
157 (loop->flags & PVSync)) ||
158 ((mode->flags & DRM_MODE_FLAG_PVSYNC) &&
159 (loop->flags & NVSync)) ||
160 ((mode->flags & DRM_MODE_FLAG_NHSYNC) &&
161 (loop->flags & PHSync)) ||
162 ((mode->flags & DRM_MODE_FLAG_PHSYNC) &&
163 (loop->flags & NHSync)))) {
164 loop++;
165 continue;
166 }
167 if (loop->refresh_rate <= refresh_rate
168 && (!best || loop->refresh_rate > best->refresh_rate))
169 best = loop;
170 loop++;
171 }
172 if (best || !check_sync)
173 break;
174 check_sync = 0;
175 }
176
177 if (best)
178 vbios_mode->enh_table = best;
179
180 hborder = (vbios_mode->enh_table->flags & HBorder) ? 8 : 0;
181 vborder = (vbios_mode->enh_table->flags & VBorder) ? 8 : 0;
182
183 adjusted_mode->crtc_htotal = vbios_mode->enh_table->ht;
184 adjusted_mode->crtc_hblank_start = vbios_mode->enh_table->hde + hborder;
185 adjusted_mode->crtc_hblank_end = vbios_mode->enh_table->ht - hborder;
186 adjusted_mode->crtc_hsync_start = vbios_mode->enh_table->hde + hborder +
187 vbios_mode->enh_table->hfp;
188 adjusted_mode->crtc_hsync_end = (vbios_mode->enh_table->hde + hborder +
189 vbios_mode->enh_table->hfp +
190 vbios_mode->enh_table->hsync);
191
192 adjusted_mode->crtc_vtotal = vbios_mode->enh_table->vt;
193 adjusted_mode->crtc_vblank_start = vbios_mode->enh_table->vde + vborder;
194 adjusted_mode->crtc_vblank_end = vbios_mode->enh_table->vt - vborder;
195 adjusted_mode->crtc_vsync_start = vbios_mode->enh_table->vde + vborder +
196 vbios_mode->enh_table->vfp;
197 adjusted_mode->crtc_vsync_end = (vbios_mode->enh_table->vde + vborder +
198 vbios_mode->enh_table->vfp +
199 vbios_mode->enh_table->vsync);
200
201 return true;
202}
203
204static void ast_set_vbios_color_reg(struct ast_private *ast,
205 const struct drm_format_info *format,
206 const struct ast_vbios_mode_info *vbios_mode)
207{
208 u32 color_index;
209
210 switch (format->cpp[0]) {
211 case 1:
212 color_index = VGAModeIndex - 1;
213 break;
214 case 2:
215 color_index = HiCModeIndex;
216 break;
217 case 3:
218 case 4:
219 color_index = TrueCModeIndex;
220 break;
221 default:
222 return;
223 }
224
225 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8c, (u8)((color_index & 0x0f) << 4));
226
227 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0x00);
228
229 if (vbios_mode->enh_table->flags & NewModeInfo) {
230 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0xa8);
231 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x92, format->cpp[0] * 8);
232 }
233}
234
235static void ast_set_vbios_mode_reg(struct ast_private *ast,
236 const struct drm_display_mode *adjusted_mode,
237 const struct ast_vbios_mode_info *vbios_mode)
238{
239 u32 refresh_rate_index, mode_id;
240
241 refresh_rate_index = vbios_mode->enh_table->refresh_rate_index;
242 mode_id = vbios_mode->enh_table->mode_id;
243
244 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8d, refresh_rate_index & 0xff);
245 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8e, mode_id & 0xff);
246
247 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0x00);
248
249 if (vbios_mode->enh_table->flags & NewModeInfo) {
250 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0xa8);
251 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x93, adjusted_mode->clock / 1000);
252 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x94, adjusted_mode->crtc_hdisplay);
253 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x95, adjusted_mode->crtc_hdisplay >> 8);
254 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x96, adjusted_mode->crtc_vdisplay);
255 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x97, adjusted_mode->crtc_vdisplay >> 8);
256 }
257}
258
259static void ast_set_std_reg(struct ast_private *ast,
260 struct drm_display_mode *mode,
261 struct ast_vbios_mode_info *vbios_mode)
262{
263 const struct ast_vbios_stdtable *stdtable;
264 u32 i;
265 u8 jreg;
266
267 stdtable = vbios_mode->std_table;
268
269 jreg = stdtable->misc;
270 ast_io_write8(ast, AST_IO_MISC_PORT_WRITE, jreg);
271
272 /* Set SEQ; except Screen Disable field */
273 ast_set_index_reg(ast, AST_IO_SEQ_PORT, 0x00, 0x03);
274 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x01, 0xdf, stdtable->seq[0]);
275 for (i = 1; i < 4; i++) {
276 jreg = stdtable->seq[i];
277 ast_set_index_reg(ast, AST_IO_SEQ_PORT, (i + 1) , jreg);
278 }
279
280 /* Set CRTC; except base address and offset */
281 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x00);
282 for (i = 0; i < 12; i++)
283 ast_set_index_reg(ast, AST_IO_CRTC_PORT, i, stdtable->crtc[i]);
284 for (i = 14; i < 19; i++)
285 ast_set_index_reg(ast, AST_IO_CRTC_PORT, i, stdtable->crtc[i]);
286 for (i = 20; i < 25; i++)
287 ast_set_index_reg(ast, AST_IO_CRTC_PORT, i, stdtable->crtc[i]);
288
289 /* set AR */
290 jreg = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
291 for (i = 0; i < 20; i++) {
292 jreg = stdtable->ar[i];
293 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, (u8)i);
294 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, jreg);
295 }
296 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x14);
297 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x00);
298
299 jreg = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
300 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x20);
301
302 /* Set GR */
303 for (i = 0; i < 9; i++)
304 ast_set_index_reg(ast, AST_IO_GR_PORT, i, stdtable->gr[i]);
305}
306
307static void ast_set_crtc_reg(struct ast_private *ast,
308 struct drm_display_mode *mode,
309 struct ast_vbios_mode_info *vbios_mode)
310{
311 u8 jreg05 = 0, jreg07 = 0, jreg09 = 0, jregAC = 0, jregAD = 0, jregAE = 0;
312 u16 temp, precache = 0;
313
314 if ((ast->chip == AST2500) &&
315 (vbios_mode->enh_table->flags & AST2500PreCatchCRT))
316 precache = 40;
317
318 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x00);
319
320 temp = (mode->crtc_htotal >> 3) - 5;
321 if (temp & 0x100)
322 jregAC |= 0x01; /* HT D[8] */
323 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x00, 0x00, temp);
324
325 temp = (mode->crtc_hdisplay >> 3) - 1;
326 if (temp & 0x100)
327 jregAC |= 0x04; /* HDE D[8] */
328 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x01, 0x00, temp);
329
330 temp = (mode->crtc_hblank_start >> 3) - 1;
331 if (temp & 0x100)
332 jregAC |= 0x10; /* HBS D[8] */
333 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x02, 0x00, temp);
334
335 temp = ((mode->crtc_hblank_end >> 3) - 1) & 0x7f;
336 if (temp & 0x20)
337 jreg05 |= 0x80; /* HBE D[5] */
338 if (temp & 0x40)
339 jregAD |= 0x01; /* HBE D[5] */
340 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x03, 0xE0, (temp & 0x1f));
341
342 temp = ((mode->crtc_hsync_start-precache) >> 3) - 1;
343 if (temp & 0x100)
344 jregAC |= 0x40; /* HRS D[5] */
345 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x04, 0x00, temp);
346
347 temp = (((mode->crtc_hsync_end-precache) >> 3) - 1) & 0x3f;
348 if (temp & 0x20)
349 jregAD |= 0x04; /* HRE D[5] */
350 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x05, 0x60, (u8)((temp & 0x1f) | jreg05));
351
352 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAC, 0x00, jregAC);
353 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAD, 0x00, jregAD);
354
355 /* vert timings */
356 temp = (mode->crtc_vtotal) - 2;
357 if (temp & 0x100)
358 jreg07 |= 0x01;
359 if (temp & 0x200)
360 jreg07 |= 0x20;
361 if (temp & 0x400)
362 jregAE |= 0x01;
363 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x06, 0x00, temp);
364
365 temp = (mode->crtc_vsync_start) - 1;
366 if (temp & 0x100)
367 jreg07 |= 0x04;
368 if (temp & 0x200)
369 jreg07 |= 0x80;
370 if (temp & 0x400)
371 jregAE |= 0x08;
372 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x10, 0x00, temp);
373
374 temp = (mode->crtc_vsync_end - 1) & 0x3f;
375 if (temp & 0x10)
376 jregAE |= 0x20;
377 if (temp & 0x20)
378 jregAE |= 0x40;
379 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x70, temp & 0xf);
380
381 temp = mode->crtc_vdisplay - 1;
382 if (temp & 0x100)
383 jreg07 |= 0x02;
384 if (temp & 0x200)
385 jreg07 |= 0x40;
386 if (temp & 0x400)
387 jregAE |= 0x02;
388 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x12, 0x00, temp);
389
390 temp = mode->crtc_vblank_start - 1;
391 if (temp & 0x100)
392 jreg07 |= 0x08;
393 if (temp & 0x200)
394 jreg09 |= 0x20;
395 if (temp & 0x400)
396 jregAE |= 0x04;
397 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x15, 0x00, temp);
398
399 temp = mode->crtc_vblank_end - 1;
400 if (temp & 0x100)
401 jregAE |= 0x10;
402 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x16, 0x00, temp);
403
404 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x07, 0x00, jreg07);
405 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x09, 0xdf, jreg09);
406 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAE, 0x00, (jregAE | 0x80));
407
408 if (precache)
409 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0x3f, 0x80);
410 else
411 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0x3f, 0x00);
412
413 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x80);
414}
415
416static void ast_set_offset_reg(struct ast_private *ast,
417 struct drm_framebuffer *fb)
418{
419 u16 offset;
420
421 offset = fb->pitches[0] >> 3;
422 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x13, (offset & 0xff));
423 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xb0, (offset >> 8) & 0x3f);
424}
425
426static void ast_set_dclk_reg(struct ast_private *ast,
427 struct drm_display_mode *mode,
428 struct ast_vbios_mode_info *vbios_mode)
429{
430 const struct ast_vbios_dclk_info *clk_info;
431
432 if (ast->chip == AST2500)
433 clk_info = &dclk_table_ast2500[vbios_mode->enh_table->dclk_index];
434 else
435 clk_info = &dclk_table[vbios_mode->enh_table->dclk_index];
436
437 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xc0, 0x00, clk_info->param1);
438 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xc1, 0x00, clk_info->param2);
439 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xbb, 0x0f,
440 (clk_info->param3 & 0xc0) |
441 ((clk_info->param3 & 0x3) << 4));
442}
443
444static void ast_set_color_reg(struct ast_private *ast,
445 const struct drm_format_info *format)
446{
447 u8 jregA0 = 0, jregA3 = 0, jregA8 = 0;
448
449 switch (format->cpp[0] * 8) {
450 case 8:
451 jregA0 = 0x70;
452 jregA3 = 0x01;
453 jregA8 = 0x00;
454 break;
455 case 15:
456 case 16:
457 jregA0 = 0x70;
458 jregA3 = 0x04;
459 jregA8 = 0x02;
460 break;
461 case 32:
462 jregA0 = 0x70;
463 jregA3 = 0x08;
464 jregA8 = 0x02;
465 break;
466 }
467
468 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa0, 0x8f, jregA0);
469 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xf0, jregA3);
470 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa8, 0xfd, jregA8);
471}
472
473static void ast_set_crtthd_reg(struct ast_private *ast)
474{
475 /* Set Threshold */
476 if (ast->chip == AST2300 || ast->chip == AST2400 ||
477 ast->chip == AST2500) {
478 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x78);
479 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x60);
480 } else if (ast->chip == AST2100 ||
481 ast->chip == AST1100 ||
482 ast->chip == AST2200 ||
483 ast->chip == AST2150) {
484 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x3f);
485 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x2f);
486 } else {
487 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x2f);
488 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x1f);
489 }
490}
491
492static void ast_set_sync_reg(struct ast_private *ast,
493 struct drm_display_mode *mode,
494 struct ast_vbios_mode_info *vbios_mode)
495{
496 u8 jreg;
497
498 jreg = ast_io_read8(ast, AST_IO_MISC_PORT_READ);
499 jreg &= ~0xC0;
500 if (vbios_mode->enh_table->flags & NVSync) jreg |= 0x80;
501 if (vbios_mode->enh_table->flags & NHSync) jreg |= 0x40;
502 ast_io_write8(ast, AST_IO_MISC_PORT_WRITE, jreg);
503}
504
505static void ast_set_start_address_crt1(struct ast_private *ast,
506 unsigned offset)
507{
508 u32 addr;
509
510 addr = offset >> 2;
511 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x0d, (u8)(addr & 0xff));
512 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x0c, (u8)((addr >> 8) & 0xff));
513 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xaf, (u8)((addr >> 16) & 0xff));
514
515}
516
517/*
518 * Primary plane
519 */
520
521static const uint32_t ast_primary_plane_formats[] = {
522 DRM_FORMAT_XRGB8888,
523 DRM_FORMAT_RGB565,
524 DRM_FORMAT_C8,
525};
526
527static int ast_primary_plane_helper_atomic_check(struct drm_plane *plane,
528 struct drm_plane_state *state)
529{
530 struct drm_crtc_state *crtc_state;
531 struct ast_crtc_state *ast_crtc_state;
532 int ret;
533
534 if (!state->crtc)
535 return 0;
536
537 crtc_state = drm_atomic_get_new_crtc_state(state->state, state->crtc);
538
539 ret = drm_atomic_helper_check_plane_state(state, crtc_state,
540 DRM_PLANE_HELPER_NO_SCALING,
541 DRM_PLANE_HELPER_NO_SCALING,
542 false, true);
543 if (ret)
544 return ret;
545
546 if (!state->visible)
547 return 0;
548
549 ast_crtc_state = to_ast_crtc_state(crtc_state);
550
551 ast_crtc_state->format = state->fb->format;
552
553 return 0;
554}
555
556static void
557ast_primary_plane_helper_atomic_update(struct drm_plane *plane,
558 struct drm_plane_state *old_state)
559{
560 struct drm_device *dev = plane->dev;
561 struct ast_private *ast = to_ast_private(dev);
562 struct drm_plane_state *state = plane->state;
563 struct drm_gem_vram_object *gbo;
564 s64 gpu_addr;
565
566 gbo = drm_gem_vram_of_gem(state->fb->obj[0]);
567 gpu_addr = drm_gem_vram_offset(gbo);
568 if (drm_WARN_ON_ONCE(dev, gpu_addr < 0))
569 return; /* Bug: we didn't pin the BO to VRAM in prepare_fb. */
570
571 ast_set_offset_reg(ast, state->fb);
572 ast_set_start_address_crt1(ast, (u32)gpu_addr);
573
574 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0x00);
575}
576
577static void
578ast_primary_plane_helper_atomic_disable(struct drm_plane *plane,
579 struct drm_plane_state *old_state)
580{
581 struct ast_private *ast = to_ast_private(plane->dev);
582
583 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0x20);
584}
585
586static const struct drm_plane_helper_funcs ast_primary_plane_helper_funcs = {
587 .prepare_fb = drm_gem_vram_plane_helper_prepare_fb,
588 .cleanup_fb = drm_gem_vram_plane_helper_cleanup_fb,
589 .atomic_check = ast_primary_plane_helper_atomic_check,
590 .atomic_update = ast_primary_plane_helper_atomic_update,
591 .atomic_disable = ast_primary_plane_helper_atomic_disable,
592};
593
594static const struct drm_plane_funcs ast_primary_plane_funcs = {
595 .update_plane = drm_atomic_helper_update_plane,
596 .disable_plane = drm_atomic_helper_disable_plane,
597 .destroy = drm_plane_cleanup,
598 .reset = drm_atomic_helper_plane_reset,
599 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
600 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
601};
602
603/*
604 * Cursor plane
605 */
606
607static const uint32_t ast_cursor_plane_formats[] = {
608 DRM_FORMAT_ARGB8888,
609};
610
611static int
612ast_cursor_plane_helper_prepare_fb(struct drm_plane *plane,
613 struct drm_plane_state *new_state)
614{
615 struct drm_framebuffer *fb = new_state->fb;
616 struct drm_crtc *crtc = new_state->crtc;
617 struct ast_private *ast;
618 int ret;
619
620 if (!crtc || !fb)
621 return 0;
622
623 ast = to_ast_private(plane->dev);
624
625 ret = ast_cursor_blit(ast, fb);
626 if (ret)
627 return ret;
628
629 return 0;
630}
631
632static int ast_cursor_plane_helper_atomic_check(struct drm_plane *plane,
633 struct drm_plane_state *state)
634{
635 struct drm_framebuffer *fb = state->fb;
636 struct drm_crtc_state *crtc_state;
637 int ret;
638
639 if (!state->crtc)
640 return 0;
641
642 crtc_state = drm_atomic_get_new_crtc_state(state->state, state->crtc);
643
644 ret = drm_atomic_helper_check_plane_state(state, crtc_state,
645 DRM_PLANE_HELPER_NO_SCALING,
646 DRM_PLANE_HELPER_NO_SCALING,
647 true, true);
648 if (ret)
649 return ret;
650
651 if (!state->visible)
652 return 0;
653
654 if (fb->width > AST_MAX_HWC_WIDTH || fb->height > AST_MAX_HWC_HEIGHT)
655 return -EINVAL;
656
657 return 0;
658}
659
660static void
661ast_cursor_plane_helper_atomic_update(struct drm_plane *plane,
662 struct drm_plane_state *old_state)
663{
664 struct drm_plane_state *state = plane->state;
665 struct drm_framebuffer *fb = state->fb;
666 struct ast_private *ast = plane->dev->dev_private;
667 unsigned int offset_x, offset_y;
668
669 offset_x = AST_MAX_HWC_WIDTH - fb->width;
670 offset_y = AST_MAX_HWC_WIDTH - fb->height;
671
672 if (state->fb != old_state->fb) {
673 /* A new cursor image was installed. */
674 ast_cursor_page_flip(ast);
675 }
676
677 ast_cursor_show(ast, state->crtc_x, state->crtc_y,
678 offset_x, offset_y);
679}
680
681static void
682ast_cursor_plane_helper_atomic_disable(struct drm_plane *plane,
683 struct drm_plane_state *old_state)
684{
685 struct ast_private *ast = to_ast_private(plane->dev);
686
687 ast_cursor_hide(ast);
688}
689
690static const struct drm_plane_helper_funcs ast_cursor_plane_helper_funcs = {
691 .prepare_fb = ast_cursor_plane_helper_prepare_fb,
692 .cleanup_fb = NULL, /* not required for cursor plane */
693 .atomic_check = ast_cursor_plane_helper_atomic_check,
694 .atomic_update = ast_cursor_plane_helper_atomic_update,
695 .atomic_disable = ast_cursor_plane_helper_atomic_disable,
696};
697
698static const struct drm_plane_funcs ast_cursor_plane_funcs = {
699 .update_plane = drm_atomic_helper_update_plane,
700 .disable_plane = drm_atomic_helper_disable_plane,
701 .destroy = drm_plane_cleanup,
702 .reset = drm_atomic_helper_plane_reset,
703 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
704 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
705};
706
707/*
708 * CRTC
709 */
710
711static void ast_crtc_dpms(struct drm_crtc *crtc, int mode)
712{
713 struct ast_private *ast = to_ast_private(crtc->dev);
714
715 /* TODO: Maybe control display signal generation with
716 * Sync Enable (bit CR17.7).
717 */
718 switch (mode) {
719 case DRM_MODE_DPMS_ON:
720 case DRM_MODE_DPMS_STANDBY:
721 case DRM_MODE_DPMS_SUSPEND:
722 if (ast->tx_chip_type == AST_TX_DP501)
723 ast_set_dp501_video_output(crtc->dev, 1);
724 ast_crtc_load_lut(ast, crtc);
725 break;
726 case DRM_MODE_DPMS_OFF:
727 if (ast->tx_chip_type == AST_TX_DP501)
728 ast_set_dp501_video_output(crtc->dev, 0);
729 break;
730 }
731}
732
733static int ast_crtc_helper_atomic_check(struct drm_crtc *crtc,
734 struct drm_crtc_state *state)
735{
736 struct ast_crtc_state *ast_state;
737 const struct drm_format_info *format;
738 bool succ;
739
740 if (!state->enable)
741 return 0; /* no mode checks if CRTC is being disabled */
742
743 ast_state = to_ast_crtc_state(state);
744
745 format = ast_state->format;
746 if (!format)
747 return 0;
748
749 succ = ast_get_vbios_mode_info(format, &state->mode,
750 &state->adjusted_mode,
751 &ast_state->vbios_mode_info);
752 if (!succ)
753 return -EINVAL;
754
755 return 0;
756}
757
758static void ast_crtc_helper_atomic_begin(struct drm_crtc *crtc,
759 struct drm_crtc_state *old_crtc_state)
760{
761 struct ast_private *ast = to_ast_private(crtc->dev);
762
763 ast_open_key(ast);
764}
765
766static void ast_crtc_helper_atomic_flush(struct drm_crtc *crtc,
767 struct drm_crtc_state *old_crtc_state)
768{
769 struct drm_device *dev = crtc->dev;
770 struct ast_private *ast = to_ast_private(dev);
771 struct ast_crtc_state *ast_state;
772 const struct drm_format_info *format;
773 struct ast_vbios_mode_info *vbios_mode_info;
774 struct drm_display_mode *adjusted_mode;
775
776 ast_state = to_ast_crtc_state(crtc->state);
777
778 format = ast_state->format;
779 if (!format)
780 return;
781
782 vbios_mode_info = &ast_state->vbios_mode_info;
783
784 ast_set_color_reg(ast, format);
785 ast_set_vbios_color_reg(ast, format, vbios_mode_info);
786
787 if (!crtc->state->mode_changed)
788 return;
789
790 adjusted_mode = &crtc->state->adjusted_mode;
791
792 ast_set_vbios_mode_reg(ast, adjusted_mode, vbios_mode_info);
793 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa1, 0x06);
794 ast_set_std_reg(ast, adjusted_mode, vbios_mode_info);
795 ast_set_crtc_reg(ast, adjusted_mode, vbios_mode_info);
796 ast_set_dclk_reg(ast, adjusted_mode, vbios_mode_info);
797 ast_set_crtthd_reg(ast);
798 ast_set_sync_reg(ast, adjusted_mode, vbios_mode_info);
799}
800
801static void
802ast_crtc_helper_atomic_enable(struct drm_crtc *crtc,
803 struct drm_crtc_state *old_crtc_state)
804{
805 ast_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
806}
807
808static void
809ast_crtc_helper_atomic_disable(struct drm_crtc *crtc,
810 struct drm_crtc_state *old_crtc_state)
811{
812 ast_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
813}
814
815static const struct drm_crtc_helper_funcs ast_crtc_helper_funcs = {
816 .atomic_check = ast_crtc_helper_atomic_check,
817 .atomic_begin = ast_crtc_helper_atomic_begin,
818 .atomic_flush = ast_crtc_helper_atomic_flush,
819 .atomic_enable = ast_crtc_helper_atomic_enable,
820 .atomic_disable = ast_crtc_helper_atomic_disable,
821};
822
823static void ast_crtc_reset(struct drm_crtc *crtc)
824{
825 struct ast_crtc_state *ast_state =
826 kzalloc(sizeof(*ast_state), GFP_KERNEL);
827
828 if (crtc->state)
829 crtc->funcs->atomic_destroy_state(crtc, crtc->state);
830
831 __drm_atomic_helper_crtc_reset(crtc, &ast_state->base);
832}
833
834static void ast_crtc_destroy(struct drm_crtc *crtc)
835{
836 drm_crtc_cleanup(crtc);
837 kfree(crtc);
838}
839
840static struct drm_crtc_state *
841ast_crtc_atomic_duplicate_state(struct drm_crtc *crtc)
842{
843 struct ast_crtc_state *new_ast_state, *ast_state;
844 struct drm_device *dev = crtc->dev;
845
846 if (drm_WARN_ON(dev, !crtc->state))
847 return NULL;
848
849 new_ast_state = kmalloc(sizeof(*new_ast_state), GFP_KERNEL);
850 if (!new_ast_state)
851 return NULL;
852 __drm_atomic_helper_crtc_duplicate_state(crtc, &new_ast_state->base);
853
854 ast_state = to_ast_crtc_state(crtc->state);
855
856 new_ast_state->format = ast_state->format;
857 memcpy(&new_ast_state->vbios_mode_info, &ast_state->vbios_mode_info,
858 sizeof(new_ast_state->vbios_mode_info));
859
860 return &new_ast_state->base;
861}
862
863static void ast_crtc_atomic_destroy_state(struct drm_crtc *crtc,
864 struct drm_crtc_state *state)
865{
866 struct ast_crtc_state *ast_state = to_ast_crtc_state(state);
867
868 __drm_atomic_helper_crtc_destroy_state(&ast_state->base);
869 kfree(ast_state);
870}
871
872static const struct drm_crtc_funcs ast_crtc_funcs = {
873 .reset = ast_crtc_reset,
874 .gamma_set = drm_atomic_helper_legacy_gamma_set,
875 .destroy = ast_crtc_destroy,
876 .set_config = drm_atomic_helper_set_config,
877 .page_flip = drm_atomic_helper_page_flip,
878 .atomic_duplicate_state = ast_crtc_atomic_duplicate_state,
879 .atomic_destroy_state = ast_crtc_atomic_destroy_state,
880};
881
882static int ast_crtc_init(struct drm_device *dev)
883{
884 struct ast_private *ast = to_ast_private(dev);
885 struct drm_crtc *crtc;
886 int ret;
887
888 crtc = kzalloc(sizeof(*crtc), GFP_KERNEL);
889 if (!crtc)
890 return -ENOMEM;
891
892 ret = drm_crtc_init_with_planes(dev, crtc, &ast->primary_plane,
893 &ast->cursor_plane, &ast_crtc_funcs,
894 NULL);
895 if (ret)
896 goto err_kfree;
897
898 drm_mode_crtc_set_gamma_size(crtc, 256);
899 drm_crtc_helper_add(crtc, &ast_crtc_helper_funcs);
900
901 return 0;
902
903err_kfree:
904 kfree(crtc);
905 return ret;
906}
907
908/*
909 * Encoder
910 */
911
912static int ast_encoder_init(struct drm_device *dev)
913{
914 struct ast_private *ast = to_ast_private(dev);
915 struct drm_encoder *encoder = &ast->encoder;
916 int ret;
917
918 ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_DAC);
919 if (ret)
920 return ret;
921
922 encoder->possible_crtcs = 1;
923
924 return 0;
925}
926
927/*
928 * Connector
929 */
930
931static int ast_get_modes(struct drm_connector *connector)
932{
933 struct ast_connector *ast_connector = to_ast_connector(connector);
934 struct ast_private *ast = to_ast_private(connector->dev);
935 struct edid *edid;
936 int ret;
937 bool flags = false;
938 if (ast->tx_chip_type == AST_TX_DP501) {
939 ast->dp501_maxclk = 0xff;
940 edid = kmalloc(128, GFP_KERNEL);
941 if (!edid)
942 return -ENOMEM;
943
944 flags = ast_dp501_read_edid(connector->dev, (u8 *)edid);
945 if (flags)
946 ast->dp501_maxclk = ast_get_dp501_max_clk(connector->dev);
947 else
948 kfree(edid);
949 }
950 if (!flags)
951 edid = drm_get_edid(connector, &ast_connector->i2c->adapter);
952 if (edid) {
953 drm_connector_update_edid_property(&ast_connector->base, edid);
954 ret = drm_add_edid_modes(connector, edid);
955 kfree(edid);
956 return ret;
957 } else
958 drm_connector_update_edid_property(&ast_connector->base, NULL);
959 return 0;
960}
961
962static enum drm_mode_status ast_mode_valid(struct drm_connector *connector,
963 struct drm_display_mode *mode)
964{
965 struct ast_private *ast = to_ast_private(connector->dev);
966 int flags = MODE_NOMODE;
967 uint32_t jtemp;
968
969 if (ast->support_wide_screen) {
970 if ((mode->hdisplay == 1680) && (mode->vdisplay == 1050))
971 return MODE_OK;
972 if ((mode->hdisplay == 1280) && (mode->vdisplay == 800))
973 return MODE_OK;
974 if ((mode->hdisplay == 1440) && (mode->vdisplay == 900))
975 return MODE_OK;
976 if ((mode->hdisplay == 1360) && (mode->vdisplay == 768))
977 return MODE_OK;
978 if ((mode->hdisplay == 1600) && (mode->vdisplay == 900))
979 return MODE_OK;
980
981 if ((ast->chip == AST2100) || (ast->chip == AST2200) ||
982 (ast->chip == AST2300) || (ast->chip == AST2400) ||
983 (ast->chip == AST2500)) {
984 if ((mode->hdisplay == 1920) && (mode->vdisplay == 1080))
985 return MODE_OK;
986
987 if ((mode->hdisplay == 1920) && (mode->vdisplay == 1200)) {
988 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff);
989 if (jtemp & 0x01)
990 return MODE_NOMODE;
991 else
992 return MODE_OK;
993 }
994 }
995 }
996 switch (mode->hdisplay) {
997 case 640:
998 if (mode->vdisplay == 480) flags = MODE_OK;
999 break;
1000 case 800:
1001 if (mode->vdisplay == 600) flags = MODE_OK;
1002 break;
1003 case 1024:
1004 if (mode->vdisplay == 768) flags = MODE_OK;
1005 break;
1006 case 1280:
1007 if (mode->vdisplay == 1024) flags = MODE_OK;
1008 break;
1009 case 1600:
1010 if (mode->vdisplay == 1200) flags = MODE_OK;
1011 break;
1012 default:
1013 return flags;
1014 }
1015
1016 return flags;
1017}
1018
1019static void ast_connector_destroy(struct drm_connector *connector)
1020{
1021 struct ast_connector *ast_connector = to_ast_connector(connector);
1022 ast_i2c_destroy(ast_connector->i2c);
1023 drm_connector_cleanup(connector);
1024 kfree(connector);
1025}
1026
1027static const struct drm_connector_helper_funcs ast_connector_helper_funcs = {
1028 .get_modes = ast_get_modes,
1029 .mode_valid = ast_mode_valid,
1030};
1031
1032static const struct drm_connector_funcs ast_connector_funcs = {
1033 .reset = drm_atomic_helper_connector_reset,
1034 .fill_modes = drm_helper_probe_single_connector_modes,
1035 .destroy = ast_connector_destroy,
1036 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1037 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1038};
1039
1040static int ast_connector_init(struct drm_device *dev)
1041{
1042 struct ast_connector *ast_connector;
1043 struct drm_connector *connector;
1044 struct drm_encoder *encoder;
1045
1046 ast_connector = kzalloc(sizeof(struct ast_connector), GFP_KERNEL);
1047 if (!ast_connector)
1048 return -ENOMEM;
1049
1050 connector = &ast_connector->base;
1051 ast_connector->i2c = ast_i2c_create(dev);
1052 if (!ast_connector->i2c)
1053 drm_err(dev, "failed to add ddc bus for connector\n");
1054
1055 drm_connector_init_with_ddc(dev, connector,
1056 &ast_connector_funcs,
1057 DRM_MODE_CONNECTOR_VGA,
1058 &ast_connector->i2c->adapter);
1059
1060 drm_connector_helper_add(connector, &ast_connector_helper_funcs);
1061
1062 connector->interlace_allowed = 0;
1063 connector->doublescan_allowed = 0;
1064
1065 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1066
1067 encoder = list_first_entry(&dev->mode_config.encoder_list, struct drm_encoder, head);
1068 drm_connector_attach_encoder(connector, encoder);
1069
1070 return 0;
1071}
1072
1073/*
1074 * Mode config
1075 */
1076
1077static const struct drm_mode_config_funcs ast_mode_config_funcs = {
1078 .fb_create = drm_gem_fb_create,
1079 .mode_valid = drm_vram_helper_mode_valid,
1080 .atomic_check = drm_atomic_helper_check,
1081 .atomic_commit = drm_atomic_helper_commit,
1082};
1083
1084int ast_mode_config_init(struct ast_private *ast)
1085{
1086 struct drm_device *dev = ast->dev;
1087 int ret;
1088
1089 ret = ast_cursor_init(ast);
1090 if (ret)
1091 return ret;
1092
1093 ret = drmm_mode_config_init(dev);
1094 if (ret)
1095 return ret;
1096
1097 dev->mode_config.funcs = &ast_mode_config_funcs;
1098 dev->mode_config.min_width = 0;
1099 dev->mode_config.min_height = 0;
1100 dev->mode_config.preferred_depth = 24;
1101 dev->mode_config.prefer_shadow = 1;
1102 dev->mode_config.fb_base = pci_resource_start(ast->dev->pdev, 0);
1103
1104 if (ast->chip == AST2100 ||
1105 ast->chip == AST2200 ||
1106 ast->chip == AST2300 ||
1107 ast->chip == AST2400 ||
1108 ast->chip == AST2500) {
1109 dev->mode_config.max_width = 1920;
1110 dev->mode_config.max_height = 2048;
1111 } else {
1112 dev->mode_config.max_width = 1600;
1113 dev->mode_config.max_height = 1200;
1114 }
1115
1116 memset(&ast->primary_plane, 0, sizeof(ast->primary_plane));
1117 ret = drm_universal_plane_init(dev, &ast->primary_plane, 0x01,
1118 &ast_primary_plane_funcs,
1119 ast_primary_plane_formats,
1120 ARRAY_SIZE(ast_primary_plane_formats),
1121 NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
1122 if (ret) {
1123 drm_err(dev, "ast: drm_universal_plane_init() failed: %d\n", ret);
1124 return ret;
1125 }
1126 drm_plane_helper_add(&ast->primary_plane,
1127 &ast_primary_plane_helper_funcs);
1128
1129 ret = drm_universal_plane_init(dev, &ast->cursor_plane, 0x01,
1130 &ast_cursor_plane_funcs,
1131 ast_cursor_plane_formats,
1132 ARRAY_SIZE(ast_cursor_plane_formats),
1133 NULL, DRM_PLANE_TYPE_CURSOR, NULL);
1134 if (ret) {
1135 drm_err(dev, "drm_universal_plane_failed(): %d\n", ret);
1136 return ret;
1137 }
1138 drm_plane_helper_add(&ast->cursor_plane,
1139 &ast_cursor_plane_helper_funcs);
1140
1141 ast_crtc_init(dev);
1142 ast_encoder_init(dev);
1143 ast_connector_init(dev);
1144
1145 drm_mode_config_reset(dev);
1146
1147 return 0;
1148}
1149
1150static int get_clock(void *i2c_priv)
1151{
1152 struct ast_i2c_chan *i2c = i2c_priv;
1153 struct ast_private *ast = to_ast_private(i2c->dev);
1154 uint32_t val, val2, count, pass;
1155
1156 count = 0;
1157 pass = 0;
1158 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x10) >> 4) & 0x01;
1159 do {
1160 val2 = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x10) >> 4) & 0x01;
1161 if (val == val2) {
1162 pass++;
1163 } else {
1164 pass = 0;
1165 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x10) >> 4) & 0x01;
1166 }
1167 } while ((pass < 5) && (count++ < 0x10000));
1168
1169 return val & 1 ? 1 : 0;
1170}
1171
1172static int get_data(void *i2c_priv)
1173{
1174 struct ast_i2c_chan *i2c = i2c_priv;
1175 struct ast_private *ast = to_ast_private(i2c->dev);
1176 uint32_t val, val2, count, pass;
1177
1178 count = 0;
1179 pass = 0;
1180 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x20) >> 5) & 0x01;
1181 do {
1182 val2 = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x20) >> 5) & 0x01;
1183 if (val == val2) {
1184 pass++;
1185 } else {
1186 pass = 0;
1187 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x20) >> 5) & 0x01;
1188 }
1189 } while ((pass < 5) && (count++ < 0x10000));
1190
1191 return val & 1 ? 1 : 0;
1192}
1193
1194static void set_clock(void *i2c_priv, int clock)
1195{
1196 struct ast_i2c_chan *i2c = i2c_priv;
1197 struct ast_private *ast = to_ast_private(i2c->dev);
1198 int i;
1199 u8 ujcrb7, jtemp;
1200
1201 for (i = 0; i < 0x10000; i++) {
1202 ujcrb7 = ((clock & 0x01) ? 0 : 1);
1203 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0xf4, ujcrb7);
1204 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x01);
1205 if (ujcrb7 == jtemp)
1206 break;
1207 }
1208}
1209
1210static void set_data(void *i2c_priv, int data)
1211{
1212 struct ast_i2c_chan *i2c = i2c_priv;
1213 struct ast_private *ast = to_ast_private(i2c->dev);
1214 int i;
1215 u8 ujcrb7, jtemp;
1216
1217 for (i = 0; i < 0x10000; i++) {
1218 ujcrb7 = ((data & 0x01) ? 0 : 1) << 2;
1219 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0xf1, ujcrb7);
1220 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x04);
1221 if (ujcrb7 == jtemp)
1222 break;
1223 }
1224}
1225
1226static struct ast_i2c_chan *ast_i2c_create(struct drm_device *dev)
1227{
1228 struct ast_i2c_chan *i2c;
1229 int ret;
1230
1231 i2c = kzalloc(sizeof(struct ast_i2c_chan), GFP_KERNEL);
1232 if (!i2c)
1233 return NULL;
1234
1235 i2c->adapter.owner = THIS_MODULE;
1236 i2c->adapter.class = I2C_CLASS_DDC;
1237 i2c->adapter.dev.parent = &dev->pdev->dev;
1238 i2c->dev = dev;
1239 i2c_set_adapdata(&i2c->adapter, i2c);
1240 snprintf(i2c->adapter.name, sizeof(i2c->adapter.name),
1241 "AST i2c bit bus");
1242 i2c->adapter.algo_data = &i2c->bit;
1243
1244 i2c->bit.udelay = 20;
1245 i2c->bit.timeout = 2;
1246 i2c->bit.data = i2c;
1247 i2c->bit.setsda = set_data;
1248 i2c->bit.setscl = set_clock;
1249 i2c->bit.getsda = get_data;
1250 i2c->bit.getscl = get_clock;
1251 ret = i2c_bit_add_bus(&i2c->adapter);
1252 if (ret) {
1253 drm_err(dev, "Failed to register bit i2c\n");
1254 goto out_free;
1255 }
1256
1257 return i2c;
1258out_free:
1259 kfree(i2c);
1260 return NULL;
1261}
1262
1263static void ast_i2c_destroy(struct ast_i2c_chan *i2c)
1264{
1265 if (!i2c)
1266 return;
1267 i2c_del_adapter(&i2c->adapter);
1268 kfree(i2c);
1269}
1/*
2 * Copyright 2012 Red Hat Inc.
3 * Parts based on xf86-video-ast
4 * Copyright (c) 2005 ASPEED Technology Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
18 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
19 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20 * USE OR OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
24 * of the Software.
25 *
26 */
27/*
28 * Authors: Dave Airlie <airlied@redhat.com>
29 */
30
31#include <linux/export.h>
32#include <linux/pci.h>
33
34#include <drm/drm_atomic.h>
35#include <drm/drm_atomic_helper.h>
36#include <drm/drm_atomic_state_helper.h>
37#include <drm/drm_crtc.h>
38#include <drm/drm_crtc_helper.h>
39#include <drm/drm_damage_helper.h>
40#include <drm/drm_edid.h>
41#include <drm/drm_format_helper.h>
42#include <drm/drm_fourcc.h>
43#include <drm/drm_gem_atomic_helper.h>
44#include <drm/drm_gem_framebuffer_helper.h>
45#include <drm/drm_gem_shmem_helper.h>
46#include <drm/drm_managed.h>
47#include <drm/drm_probe_helper.h>
48#include <drm/drm_simple_kms_helper.h>
49
50#include "ast_drv.h"
51#include "ast_tables.h"
52
53#define AST_LUT_SIZE 256
54
55static inline void ast_load_palette_index(struct ast_private *ast,
56 u8 index, u8 red, u8 green,
57 u8 blue)
58{
59 ast_io_write8(ast, AST_IO_DAC_INDEX_WRITE, index);
60 ast_io_read8(ast, AST_IO_SEQ_PORT);
61 ast_io_write8(ast, AST_IO_DAC_DATA, red);
62 ast_io_read8(ast, AST_IO_SEQ_PORT);
63 ast_io_write8(ast, AST_IO_DAC_DATA, green);
64 ast_io_read8(ast, AST_IO_SEQ_PORT);
65 ast_io_write8(ast, AST_IO_DAC_DATA, blue);
66 ast_io_read8(ast, AST_IO_SEQ_PORT);
67}
68
69static void ast_crtc_set_gamma_linear(struct ast_private *ast,
70 const struct drm_format_info *format)
71{
72 int i;
73
74 switch (format->format) {
75 case DRM_FORMAT_C8: /* In this case, gamma table is used as color palette */
76 case DRM_FORMAT_RGB565:
77 case DRM_FORMAT_XRGB8888:
78 for (i = 0; i < AST_LUT_SIZE; i++)
79 ast_load_palette_index(ast, i, i, i, i);
80 break;
81 default:
82 drm_warn_once(&ast->base, "Unsupported format %p4cc for gamma correction\n",
83 &format->format);
84 break;
85 }
86}
87
88static void ast_crtc_set_gamma(struct ast_private *ast,
89 const struct drm_format_info *format,
90 struct drm_color_lut *lut)
91{
92 int i;
93
94 switch (format->format) {
95 case DRM_FORMAT_C8: /* In this case, gamma table is used as color palette */
96 case DRM_FORMAT_RGB565:
97 case DRM_FORMAT_XRGB8888:
98 for (i = 0; i < AST_LUT_SIZE; i++)
99 ast_load_palette_index(ast, i,
100 lut[i].red >> 8,
101 lut[i].green >> 8,
102 lut[i].blue >> 8);
103 break;
104 default:
105 drm_warn_once(&ast->base, "Unsupported format %p4cc for gamma correction\n",
106 &format->format);
107 break;
108 }
109}
110
111static bool ast_get_vbios_mode_info(const struct drm_format_info *format,
112 const struct drm_display_mode *mode,
113 struct drm_display_mode *adjusted_mode,
114 struct ast_vbios_mode_info *vbios_mode)
115{
116 u32 refresh_rate_index = 0, refresh_rate;
117 const struct ast_vbios_enhtable *best = NULL;
118 u32 hborder, vborder;
119 bool check_sync;
120
121 switch (format->cpp[0] * 8) {
122 case 8:
123 vbios_mode->std_table = &vbios_stdtable[VGAModeIndex];
124 break;
125 case 16:
126 vbios_mode->std_table = &vbios_stdtable[HiCModeIndex];
127 break;
128 case 24:
129 case 32:
130 vbios_mode->std_table = &vbios_stdtable[TrueCModeIndex];
131 break;
132 default:
133 return false;
134 }
135
136 switch (mode->crtc_hdisplay) {
137 case 640:
138 vbios_mode->enh_table = &res_640x480[refresh_rate_index];
139 break;
140 case 800:
141 vbios_mode->enh_table = &res_800x600[refresh_rate_index];
142 break;
143 case 1024:
144 vbios_mode->enh_table = &res_1024x768[refresh_rate_index];
145 break;
146 case 1152:
147 vbios_mode->enh_table = &res_1152x864[refresh_rate_index];
148 break;
149 case 1280:
150 if (mode->crtc_vdisplay == 800)
151 vbios_mode->enh_table = &res_1280x800[refresh_rate_index];
152 else
153 vbios_mode->enh_table = &res_1280x1024[refresh_rate_index];
154 break;
155 case 1360:
156 vbios_mode->enh_table = &res_1360x768[refresh_rate_index];
157 break;
158 case 1440:
159 vbios_mode->enh_table = &res_1440x900[refresh_rate_index];
160 break;
161 case 1600:
162 if (mode->crtc_vdisplay == 900)
163 vbios_mode->enh_table = &res_1600x900[refresh_rate_index];
164 else
165 vbios_mode->enh_table = &res_1600x1200[refresh_rate_index];
166 break;
167 case 1680:
168 vbios_mode->enh_table = &res_1680x1050[refresh_rate_index];
169 break;
170 case 1920:
171 if (mode->crtc_vdisplay == 1080)
172 vbios_mode->enh_table = &res_1920x1080[refresh_rate_index];
173 else
174 vbios_mode->enh_table = &res_1920x1200[refresh_rate_index];
175 break;
176 default:
177 return false;
178 }
179
180 refresh_rate = drm_mode_vrefresh(mode);
181 check_sync = vbios_mode->enh_table->flags & WideScreenMode;
182
183 while (1) {
184 const struct ast_vbios_enhtable *loop = vbios_mode->enh_table;
185
186 while (loop->refresh_rate != 0xff) {
187 if ((check_sync) &&
188 (((mode->flags & DRM_MODE_FLAG_NVSYNC) &&
189 (loop->flags & PVSync)) ||
190 ((mode->flags & DRM_MODE_FLAG_PVSYNC) &&
191 (loop->flags & NVSync)) ||
192 ((mode->flags & DRM_MODE_FLAG_NHSYNC) &&
193 (loop->flags & PHSync)) ||
194 ((mode->flags & DRM_MODE_FLAG_PHSYNC) &&
195 (loop->flags & NHSync)))) {
196 loop++;
197 continue;
198 }
199 if (loop->refresh_rate <= refresh_rate
200 && (!best || loop->refresh_rate > best->refresh_rate))
201 best = loop;
202 loop++;
203 }
204 if (best || !check_sync)
205 break;
206 check_sync = 0;
207 }
208
209 if (best)
210 vbios_mode->enh_table = best;
211
212 hborder = (vbios_mode->enh_table->flags & HBorder) ? 8 : 0;
213 vborder = (vbios_mode->enh_table->flags & VBorder) ? 8 : 0;
214
215 adjusted_mode->crtc_htotal = vbios_mode->enh_table->ht;
216 adjusted_mode->crtc_hblank_start = vbios_mode->enh_table->hde + hborder;
217 adjusted_mode->crtc_hblank_end = vbios_mode->enh_table->ht - hborder;
218 adjusted_mode->crtc_hsync_start = vbios_mode->enh_table->hde + hborder +
219 vbios_mode->enh_table->hfp;
220 adjusted_mode->crtc_hsync_end = (vbios_mode->enh_table->hde + hborder +
221 vbios_mode->enh_table->hfp +
222 vbios_mode->enh_table->hsync);
223
224 adjusted_mode->crtc_vtotal = vbios_mode->enh_table->vt;
225 adjusted_mode->crtc_vblank_start = vbios_mode->enh_table->vde + vborder;
226 adjusted_mode->crtc_vblank_end = vbios_mode->enh_table->vt - vborder;
227 adjusted_mode->crtc_vsync_start = vbios_mode->enh_table->vde + vborder +
228 vbios_mode->enh_table->vfp;
229 adjusted_mode->crtc_vsync_end = (vbios_mode->enh_table->vde + vborder +
230 vbios_mode->enh_table->vfp +
231 vbios_mode->enh_table->vsync);
232
233 return true;
234}
235
236static void ast_set_vbios_color_reg(struct ast_private *ast,
237 const struct drm_format_info *format,
238 const struct ast_vbios_mode_info *vbios_mode)
239{
240 u32 color_index;
241
242 switch (format->cpp[0]) {
243 case 1:
244 color_index = VGAModeIndex - 1;
245 break;
246 case 2:
247 color_index = HiCModeIndex;
248 break;
249 case 3:
250 case 4:
251 color_index = TrueCModeIndex;
252 break;
253 default:
254 return;
255 }
256
257 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8c, (u8)((color_index & 0x0f) << 4));
258
259 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0x00);
260
261 if (vbios_mode->enh_table->flags & NewModeInfo) {
262 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0xa8);
263 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x92, format->cpp[0] * 8);
264 }
265}
266
267static void ast_set_vbios_mode_reg(struct ast_private *ast,
268 const struct drm_display_mode *adjusted_mode,
269 const struct ast_vbios_mode_info *vbios_mode)
270{
271 u32 refresh_rate_index, mode_id;
272
273 refresh_rate_index = vbios_mode->enh_table->refresh_rate_index;
274 mode_id = vbios_mode->enh_table->mode_id;
275
276 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8d, refresh_rate_index & 0xff);
277 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8e, mode_id & 0xff);
278
279 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0x00);
280
281 if (vbios_mode->enh_table->flags & NewModeInfo) {
282 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0xa8);
283 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x93, adjusted_mode->clock / 1000);
284 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x94, adjusted_mode->crtc_hdisplay);
285 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x95, adjusted_mode->crtc_hdisplay >> 8);
286 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x96, adjusted_mode->crtc_vdisplay);
287 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x97, adjusted_mode->crtc_vdisplay >> 8);
288 }
289}
290
291static void ast_set_std_reg(struct ast_private *ast,
292 struct drm_display_mode *mode,
293 struct ast_vbios_mode_info *vbios_mode)
294{
295 const struct ast_vbios_stdtable *stdtable;
296 u32 i;
297 u8 jreg;
298
299 stdtable = vbios_mode->std_table;
300
301 jreg = stdtable->misc;
302 ast_io_write8(ast, AST_IO_MISC_PORT_WRITE, jreg);
303
304 /* Set SEQ; except Screen Disable field */
305 ast_set_index_reg(ast, AST_IO_SEQ_PORT, 0x00, 0x03);
306 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x01, 0xdf, stdtable->seq[0]);
307 for (i = 1; i < 4; i++) {
308 jreg = stdtable->seq[i];
309 ast_set_index_reg(ast, AST_IO_SEQ_PORT, (i + 1), jreg);
310 }
311
312 /* Set CRTC; except base address and offset */
313 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x00);
314 for (i = 0; i < 12; i++)
315 ast_set_index_reg(ast, AST_IO_CRTC_PORT, i, stdtable->crtc[i]);
316 for (i = 14; i < 19; i++)
317 ast_set_index_reg(ast, AST_IO_CRTC_PORT, i, stdtable->crtc[i]);
318 for (i = 20; i < 25; i++)
319 ast_set_index_reg(ast, AST_IO_CRTC_PORT, i, stdtable->crtc[i]);
320
321 /* set AR */
322 jreg = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
323 for (i = 0; i < 20; i++) {
324 jreg = stdtable->ar[i];
325 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, (u8)i);
326 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, jreg);
327 }
328 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x14);
329 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x00);
330
331 jreg = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
332 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x20);
333
334 /* Set GR */
335 for (i = 0; i < 9; i++)
336 ast_set_index_reg(ast, AST_IO_GR_PORT, i, stdtable->gr[i]);
337}
338
339static void ast_set_crtc_reg(struct ast_private *ast,
340 struct drm_display_mode *mode,
341 struct ast_vbios_mode_info *vbios_mode)
342{
343 u8 jreg05 = 0, jreg07 = 0, jreg09 = 0, jregAC = 0, jregAD = 0, jregAE = 0;
344 u16 temp, precache = 0;
345
346 if ((ast->chip == AST2500 || ast->chip == AST2600) &&
347 (vbios_mode->enh_table->flags & AST2500PreCatchCRT))
348 precache = 40;
349
350 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x00);
351
352 temp = (mode->crtc_htotal >> 3) - 5;
353 if (temp & 0x100)
354 jregAC |= 0x01; /* HT D[8] */
355 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x00, 0x00, temp);
356
357 temp = (mode->crtc_hdisplay >> 3) - 1;
358 if (temp & 0x100)
359 jregAC |= 0x04; /* HDE D[8] */
360 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x01, 0x00, temp);
361
362 temp = (mode->crtc_hblank_start >> 3) - 1;
363 if (temp & 0x100)
364 jregAC |= 0x10; /* HBS D[8] */
365 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x02, 0x00, temp);
366
367 temp = ((mode->crtc_hblank_end >> 3) - 1) & 0x7f;
368 if (temp & 0x20)
369 jreg05 |= 0x80; /* HBE D[5] */
370 if (temp & 0x40)
371 jregAD |= 0x01; /* HBE D[5] */
372 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x03, 0xE0, (temp & 0x1f));
373
374 temp = ((mode->crtc_hsync_start-precache) >> 3) - 1;
375 if (temp & 0x100)
376 jregAC |= 0x40; /* HRS D[5] */
377 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x04, 0x00, temp);
378
379 temp = (((mode->crtc_hsync_end-precache) >> 3) - 1) & 0x3f;
380 if (temp & 0x20)
381 jregAD |= 0x04; /* HRE D[5] */
382 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x05, 0x60, (u8)((temp & 0x1f) | jreg05));
383
384 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAC, 0x00, jregAC);
385 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAD, 0x00, jregAD);
386
387 // Workaround for HSync Time non octave pixels (1920x1080@60Hz HSync 44 pixels);
388 if ((ast->chip == AST2600) && (mode->crtc_vdisplay == 1080))
389 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xFC, 0xFD, 0x02);
390 else
391 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xFC, 0xFD, 0x00);
392
393 /* vert timings */
394 temp = (mode->crtc_vtotal) - 2;
395 if (temp & 0x100)
396 jreg07 |= 0x01;
397 if (temp & 0x200)
398 jreg07 |= 0x20;
399 if (temp & 0x400)
400 jregAE |= 0x01;
401 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x06, 0x00, temp);
402
403 temp = (mode->crtc_vsync_start) - 1;
404 if (temp & 0x100)
405 jreg07 |= 0x04;
406 if (temp & 0x200)
407 jreg07 |= 0x80;
408 if (temp & 0x400)
409 jregAE |= 0x08;
410 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x10, 0x00, temp);
411
412 temp = (mode->crtc_vsync_end - 1) & 0x3f;
413 if (temp & 0x10)
414 jregAE |= 0x20;
415 if (temp & 0x20)
416 jregAE |= 0x40;
417 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x70, temp & 0xf);
418
419 temp = mode->crtc_vdisplay - 1;
420 if (temp & 0x100)
421 jreg07 |= 0x02;
422 if (temp & 0x200)
423 jreg07 |= 0x40;
424 if (temp & 0x400)
425 jregAE |= 0x02;
426 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x12, 0x00, temp);
427
428 temp = mode->crtc_vblank_start - 1;
429 if (temp & 0x100)
430 jreg07 |= 0x08;
431 if (temp & 0x200)
432 jreg09 |= 0x20;
433 if (temp & 0x400)
434 jregAE |= 0x04;
435 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x15, 0x00, temp);
436
437 temp = mode->crtc_vblank_end - 1;
438 if (temp & 0x100)
439 jregAE |= 0x10;
440 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x16, 0x00, temp);
441
442 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x07, 0x00, jreg07);
443 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x09, 0xdf, jreg09);
444 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAE, 0x00, (jregAE | 0x80));
445
446 if (precache)
447 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0x3f, 0x80);
448 else
449 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0x3f, 0x00);
450
451 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x80);
452}
453
454static void ast_set_offset_reg(struct ast_private *ast,
455 struct drm_framebuffer *fb)
456{
457 u16 offset;
458
459 offset = fb->pitches[0] >> 3;
460 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x13, (offset & 0xff));
461 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xb0, (offset >> 8) & 0x3f);
462}
463
464static void ast_set_dclk_reg(struct ast_private *ast,
465 struct drm_display_mode *mode,
466 struct ast_vbios_mode_info *vbios_mode)
467{
468 const struct ast_vbios_dclk_info *clk_info;
469
470 if ((ast->chip == AST2500) || (ast->chip == AST2600))
471 clk_info = &dclk_table_ast2500[vbios_mode->enh_table->dclk_index];
472 else
473 clk_info = &dclk_table[vbios_mode->enh_table->dclk_index];
474
475 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xc0, 0x00, clk_info->param1);
476 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xc1, 0x00, clk_info->param2);
477 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xbb, 0x0f,
478 (clk_info->param3 & 0xc0) |
479 ((clk_info->param3 & 0x3) << 4));
480}
481
482static void ast_set_color_reg(struct ast_private *ast,
483 const struct drm_format_info *format)
484{
485 u8 jregA0 = 0, jregA3 = 0, jregA8 = 0;
486
487 switch (format->cpp[0] * 8) {
488 case 8:
489 jregA0 = 0x70;
490 jregA3 = 0x01;
491 jregA8 = 0x00;
492 break;
493 case 15:
494 case 16:
495 jregA0 = 0x70;
496 jregA3 = 0x04;
497 jregA8 = 0x02;
498 break;
499 case 32:
500 jregA0 = 0x70;
501 jregA3 = 0x08;
502 jregA8 = 0x02;
503 break;
504 }
505
506 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa0, 0x8f, jregA0);
507 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xf0, jregA3);
508 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa8, 0xfd, jregA8);
509}
510
511static void ast_set_crtthd_reg(struct ast_private *ast)
512{
513 /* Set Threshold */
514 if (ast->chip == AST2600) {
515 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0xe0);
516 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0xa0);
517 } else if (ast->chip == AST2300 || ast->chip == AST2400 ||
518 ast->chip == AST2500) {
519 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x78);
520 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x60);
521 } else if (ast->chip == AST2100 ||
522 ast->chip == AST1100 ||
523 ast->chip == AST2200 ||
524 ast->chip == AST2150) {
525 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x3f);
526 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x2f);
527 } else {
528 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x2f);
529 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x1f);
530 }
531}
532
533static void ast_set_sync_reg(struct ast_private *ast,
534 struct drm_display_mode *mode,
535 struct ast_vbios_mode_info *vbios_mode)
536{
537 u8 jreg;
538
539 jreg = ast_io_read8(ast, AST_IO_MISC_PORT_READ);
540 jreg &= ~0xC0;
541 if (vbios_mode->enh_table->flags & NVSync)
542 jreg |= 0x80;
543 if (vbios_mode->enh_table->flags & NHSync)
544 jreg |= 0x40;
545 ast_io_write8(ast, AST_IO_MISC_PORT_WRITE, jreg);
546}
547
548static void ast_set_start_address_crt1(struct ast_private *ast,
549 unsigned int offset)
550{
551 u32 addr;
552
553 addr = offset >> 2;
554 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x0d, (u8)(addr & 0xff));
555 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x0c, (u8)((addr >> 8) & 0xff));
556 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xaf, (u8)((addr >> 16) & 0xff));
557
558}
559
560static void ast_wait_for_vretrace(struct ast_private *ast)
561{
562 unsigned long timeout = jiffies + HZ;
563 u8 vgair1;
564
565 do {
566 vgair1 = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
567 } while (!(vgair1 & AST_IO_VGAIR1_VREFRESH) && time_before(jiffies, timeout));
568}
569
570/*
571 * Planes
572 */
573
574static int ast_plane_init(struct drm_device *dev, struct ast_plane *ast_plane,
575 void __iomem *vaddr, u64 offset, unsigned long size,
576 uint32_t possible_crtcs,
577 const struct drm_plane_funcs *funcs,
578 const uint32_t *formats, unsigned int format_count,
579 const uint64_t *format_modifiers,
580 enum drm_plane_type type)
581{
582 struct drm_plane *plane = &ast_plane->base;
583
584 ast_plane->vaddr = vaddr;
585 ast_plane->offset = offset;
586 ast_plane->size = size;
587
588 return drm_universal_plane_init(dev, plane, possible_crtcs, funcs,
589 formats, format_count, format_modifiers,
590 type, NULL);
591}
592
593/*
594 * Primary plane
595 */
596
597static const uint32_t ast_primary_plane_formats[] = {
598 DRM_FORMAT_XRGB8888,
599 DRM_FORMAT_RGB565,
600 DRM_FORMAT_C8,
601};
602
603static int ast_primary_plane_helper_atomic_check(struct drm_plane *plane,
604 struct drm_atomic_state *state)
605{
606 struct drm_device *dev = plane->dev;
607 struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane);
608 struct drm_crtc_state *new_crtc_state = NULL;
609 struct ast_crtc_state *new_ast_crtc_state;
610 int ret;
611
612 if (new_plane_state->crtc)
613 new_crtc_state = drm_atomic_get_new_crtc_state(state, new_plane_state->crtc);
614
615 ret = drm_atomic_helper_check_plane_state(new_plane_state, new_crtc_state,
616 DRM_PLANE_NO_SCALING,
617 DRM_PLANE_NO_SCALING,
618 false, true);
619 if (ret) {
620 return ret;
621 } else if (!new_plane_state->visible) {
622 if (drm_WARN_ON(dev, new_plane_state->crtc)) /* cannot legally happen */
623 return -EINVAL;
624 else
625 return 0;
626 }
627
628 new_ast_crtc_state = to_ast_crtc_state(new_crtc_state);
629
630 new_ast_crtc_state->format = new_plane_state->fb->format;
631
632 return 0;
633}
634
635static void ast_handle_damage(struct ast_plane *ast_plane, struct iosys_map *src,
636 struct drm_framebuffer *fb,
637 const struct drm_rect *clip)
638{
639 struct iosys_map dst = IOSYS_MAP_INIT_VADDR(ast_plane->vaddr);
640
641 iosys_map_incr(&dst, drm_fb_clip_offset(fb->pitches[0], fb->format, clip));
642 drm_fb_memcpy(&dst, fb->pitches, src, fb, clip);
643}
644
645static void ast_primary_plane_helper_atomic_update(struct drm_plane *plane,
646 struct drm_atomic_state *state)
647{
648 struct drm_device *dev = plane->dev;
649 struct ast_private *ast = to_ast_private(dev);
650 struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state, plane);
651 struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(plane_state);
652 struct drm_framebuffer *fb = plane_state->fb;
653 struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, plane);
654 struct drm_framebuffer *old_fb = old_plane_state->fb;
655 struct ast_plane *ast_plane = to_ast_plane(plane);
656 struct drm_rect damage;
657 struct drm_atomic_helper_damage_iter iter;
658
659 if (!old_fb || (fb->format != old_fb->format)) {
660 struct drm_crtc *crtc = plane_state->crtc;
661 struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
662 struct ast_crtc_state *ast_crtc_state = to_ast_crtc_state(crtc_state);
663 struct ast_vbios_mode_info *vbios_mode_info = &ast_crtc_state->vbios_mode_info;
664
665 ast_set_color_reg(ast, fb->format);
666 ast_set_vbios_color_reg(ast, fb->format, vbios_mode_info);
667 }
668
669 drm_atomic_helper_damage_iter_init(&iter, old_plane_state, plane_state);
670 drm_atomic_for_each_plane_damage(&iter, &damage) {
671 ast_handle_damage(ast_plane, shadow_plane_state->data, fb, &damage);
672 }
673
674 /*
675 * Some BMCs stop scanning out the video signal after the driver
676 * reprogrammed the offset or scanout address. This stalls display
677 * output for several seconds and makes the display unusable.
678 * Therefore only update the offset if it changes and reprogram the
679 * address after enabling the plane.
680 */
681 if (!old_fb || old_fb->pitches[0] != fb->pitches[0])
682 ast_set_offset_reg(ast, fb);
683 if (!old_fb) {
684 ast_set_start_address_crt1(ast, (u32)ast_plane->offset);
685 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0x00);
686 }
687}
688
689static void ast_primary_plane_helper_atomic_disable(struct drm_plane *plane,
690 struct drm_atomic_state *state)
691{
692 struct ast_private *ast = to_ast_private(plane->dev);
693
694 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0x20);
695}
696
697static const struct drm_plane_helper_funcs ast_primary_plane_helper_funcs = {
698 DRM_GEM_SHADOW_PLANE_HELPER_FUNCS,
699 .atomic_check = ast_primary_plane_helper_atomic_check,
700 .atomic_update = ast_primary_plane_helper_atomic_update,
701 .atomic_disable = ast_primary_plane_helper_atomic_disable,
702};
703
704static const struct drm_plane_funcs ast_primary_plane_funcs = {
705 .update_plane = drm_atomic_helper_update_plane,
706 .disable_plane = drm_atomic_helper_disable_plane,
707 .destroy = drm_plane_cleanup,
708 DRM_GEM_SHADOW_PLANE_FUNCS,
709};
710
711static int ast_primary_plane_init(struct ast_private *ast)
712{
713 struct drm_device *dev = &ast->base;
714 struct ast_plane *ast_primary_plane = &ast->primary_plane;
715 struct drm_plane *primary_plane = &ast_primary_plane->base;
716 void __iomem *vaddr = ast->vram;
717 u64 offset = 0; /* with shmem, the primary plane is always at offset 0 */
718 unsigned long cursor_size = roundup(AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE, PAGE_SIZE);
719 unsigned long size = ast->vram_fb_available - cursor_size;
720 int ret;
721
722 ret = ast_plane_init(dev, ast_primary_plane, vaddr, offset, size,
723 0x01, &ast_primary_plane_funcs,
724 ast_primary_plane_formats, ARRAY_SIZE(ast_primary_plane_formats),
725 NULL, DRM_PLANE_TYPE_PRIMARY);
726 if (ret) {
727 drm_err(dev, "ast_plane_init() failed: %d\n", ret);
728 return ret;
729 }
730 drm_plane_helper_add(primary_plane, &ast_primary_plane_helper_funcs);
731 drm_plane_enable_fb_damage_clips(primary_plane);
732
733 return 0;
734}
735
736/*
737 * Cursor plane
738 */
739
740static void ast_update_cursor_image(u8 __iomem *dst, const u8 *src, int width, int height)
741{
742 union {
743 u32 ul;
744 u8 b[4];
745 } srcdata32[2], data32;
746 union {
747 u16 us;
748 u8 b[2];
749 } data16;
750 u32 csum = 0;
751 s32 alpha_dst_delta, last_alpha_dst_delta;
752 u8 __iomem *dstxor;
753 const u8 *srcxor;
754 int i, j;
755 u32 per_pixel_copy, two_pixel_copy;
756
757 alpha_dst_delta = AST_MAX_HWC_WIDTH << 1;
758 last_alpha_dst_delta = alpha_dst_delta - (width << 1);
759
760 srcxor = src;
761 dstxor = (u8 *)dst + last_alpha_dst_delta + (AST_MAX_HWC_HEIGHT - height) * alpha_dst_delta;
762 per_pixel_copy = width & 1;
763 two_pixel_copy = width >> 1;
764
765 for (j = 0; j < height; j++) {
766 for (i = 0; i < two_pixel_copy; i++) {
767 srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
768 srcdata32[1].ul = *((u32 *)(srcxor + 4)) & 0xf0f0f0f0;
769 data32.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
770 data32.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
771 data32.b[2] = srcdata32[1].b[1] | (srcdata32[1].b[0] >> 4);
772 data32.b[3] = srcdata32[1].b[3] | (srcdata32[1].b[2] >> 4);
773
774 writel(data32.ul, dstxor);
775 csum += data32.ul;
776
777 dstxor += 4;
778 srcxor += 8;
779
780 }
781
782 for (i = 0; i < per_pixel_copy; i++) {
783 srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
784 data16.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
785 data16.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
786 writew(data16.us, dstxor);
787 csum += (u32)data16.us;
788
789 dstxor += 2;
790 srcxor += 4;
791 }
792 dstxor += last_alpha_dst_delta;
793 }
794
795 /* write checksum + signature */
796 dst += AST_HWC_SIZE;
797 writel(csum, dst);
798 writel(width, dst + AST_HWC_SIGNATURE_SizeX);
799 writel(height, dst + AST_HWC_SIGNATURE_SizeY);
800 writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTX);
801 writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTY);
802}
803
804static void ast_set_cursor_base(struct ast_private *ast, u64 address)
805{
806 u8 addr0 = (address >> 3) & 0xff;
807 u8 addr1 = (address >> 11) & 0xff;
808 u8 addr2 = (address >> 19) & 0xff;
809
810 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc8, addr0);
811 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc9, addr1);
812 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xca, addr2);
813}
814
815static void ast_set_cursor_location(struct ast_private *ast, u16 x, u16 y,
816 u8 x_offset, u8 y_offset)
817{
818 u8 x0 = (x & 0x00ff);
819 u8 x1 = (x & 0x0f00) >> 8;
820 u8 y0 = (y & 0x00ff);
821 u8 y1 = (y & 0x0700) >> 8;
822
823 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc2, x_offset);
824 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc3, y_offset);
825 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc4, x0);
826 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc5, x1);
827 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc6, y0);
828 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc7, y1);
829}
830
831static void ast_set_cursor_enabled(struct ast_private *ast, bool enabled)
832{
833 static const u8 mask = (u8)~(AST_IO_VGACRCB_HWC_16BPP |
834 AST_IO_VGACRCB_HWC_ENABLED);
835
836 u8 vgacrcb = AST_IO_VGACRCB_HWC_16BPP;
837
838 if (enabled)
839 vgacrcb |= AST_IO_VGACRCB_HWC_ENABLED;
840
841 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, mask, vgacrcb);
842}
843
844static const uint32_t ast_cursor_plane_formats[] = {
845 DRM_FORMAT_ARGB8888,
846};
847
848static int ast_cursor_plane_helper_atomic_check(struct drm_plane *plane,
849 struct drm_atomic_state *state)
850{
851 struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane);
852 struct drm_framebuffer *new_fb = new_plane_state->fb;
853 struct drm_crtc_state *new_crtc_state = NULL;
854 int ret;
855
856 if (new_plane_state->crtc)
857 new_crtc_state = drm_atomic_get_new_crtc_state(state, new_plane_state->crtc);
858
859 ret = drm_atomic_helper_check_plane_state(new_plane_state, new_crtc_state,
860 DRM_PLANE_NO_SCALING,
861 DRM_PLANE_NO_SCALING,
862 true, true);
863 if (ret || !new_plane_state->visible)
864 return ret;
865
866 if (new_fb->width > AST_MAX_HWC_WIDTH || new_fb->height > AST_MAX_HWC_HEIGHT)
867 return -EINVAL;
868
869 return 0;
870}
871
872static void ast_cursor_plane_helper_atomic_update(struct drm_plane *plane,
873 struct drm_atomic_state *state)
874{
875 struct ast_plane *ast_plane = to_ast_plane(plane);
876 struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state, plane);
877 struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(plane_state);
878 struct drm_framebuffer *fb = plane_state->fb;
879 struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, plane);
880 struct ast_private *ast = to_ast_private(plane->dev);
881 struct iosys_map src_map = shadow_plane_state->data[0];
882 struct drm_rect damage;
883 const u8 *src = src_map.vaddr; /* TODO: Use mapping abstraction properly */
884 u64 dst_off = ast_plane->offset;
885 u8 __iomem *dst = ast_plane->vaddr; /* TODO: Use mapping abstraction properly */
886 u8 __iomem *sig = dst + AST_HWC_SIZE; /* TODO: Use mapping abstraction properly */
887 unsigned int offset_x, offset_y;
888 u16 x, y;
889 u8 x_offset, y_offset;
890
891 /*
892 * Do data transfer to hardware buffer and point the scanout
893 * engine to the offset.
894 */
895
896 if (drm_atomic_helper_damage_merged(old_plane_state, plane_state, &damage)) {
897 ast_update_cursor_image(dst, src, fb->width, fb->height);
898 ast_set_cursor_base(ast, dst_off);
899 }
900
901 /*
902 * Update location in HWC signature and registers.
903 */
904
905 writel(plane_state->crtc_x, sig + AST_HWC_SIGNATURE_X);
906 writel(plane_state->crtc_y, sig + AST_HWC_SIGNATURE_Y);
907
908 offset_x = AST_MAX_HWC_WIDTH - fb->width;
909 offset_y = AST_MAX_HWC_HEIGHT - fb->height;
910
911 if (plane_state->crtc_x < 0) {
912 x_offset = (-plane_state->crtc_x) + offset_x;
913 x = 0;
914 } else {
915 x_offset = offset_x;
916 x = plane_state->crtc_x;
917 }
918 if (plane_state->crtc_y < 0) {
919 y_offset = (-plane_state->crtc_y) + offset_y;
920 y = 0;
921 } else {
922 y_offset = offset_y;
923 y = plane_state->crtc_y;
924 }
925
926 ast_set_cursor_location(ast, x, y, x_offset, y_offset);
927
928 /* Dummy write to enable HWC and make the HW pick-up the changes. */
929 ast_set_cursor_enabled(ast, true);
930}
931
932static void ast_cursor_plane_helper_atomic_disable(struct drm_plane *plane,
933 struct drm_atomic_state *state)
934{
935 struct ast_private *ast = to_ast_private(plane->dev);
936
937 ast_set_cursor_enabled(ast, false);
938}
939
940static const struct drm_plane_helper_funcs ast_cursor_plane_helper_funcs = {
941 DRM_GEM_SHADOW_PLANE_HELPER_FUNCS,
942 .atomic_check = ast_cursor_plane_helper_atomic_check,
943 .atomic_update = ast_cursor_plane_helper_atomic_update,
944 .atomic_disable = ast_cursor_plane_helper_atomic_disable,
945};
946
947static const struct drm_plane_funcs ast_cursor_plane_funcs = {
948 .update_plane = drm_atomic_helper_update_plane,
949 .disable_plane = drm_atomic_helper_disable_plane,
950 .destroy = drm_plane_cleanup,
951 DRM_GEM_SHADOW_PLANE_FUNCS,
952};
953
954static int ast_cursor_plane_init(struct ast_private *ast)
955{
956 struct drm_device *dev = &ast->base;
957 struct ast_plane *ast_cursor_plane = &ast->cursor_plane;
958 struct drm_plane *cursor_plane = &ast_cursor_plane->base;
959 size_t size;
960 void __iomem *vaddr;
961 u64 offset;
962 int ret;
963
964 /*
965 * Allocate backing storage for cursors. The BOs are permanently
966 * pinned to the top end of the VRAM.
967 */
968
969 size = roundup(AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE, PAGE_SIZE);
970
971 if (ast->vram_fb_available < size)
972 return -ENOMEM;
973
974 vaddr = ast->vram + ast->vram_fb_available - size;
975 offset = ast->vram_fb_available - size;
976
977 ret = ast_plane_init(dev, ast_cursor_plane, vaddr, offset, size,
978 0x01, &ast_cursor_plane_funcs,
979 ast_cursor_plane_formats, ARRAY_SIZE(ast_cursor_plane_formats),
980 NULL, DRM_PLANE_TYPE_CURSOR);
981 if (ret) {
982 drm_err(dev, "ast_plane_init() failed: %d\n", ret);
983 return ret;
984 }
985 drm_plane_helper_add(cursor_plane, &ast_cursor_plane_helper_funcs);
986 drm_plane_enable_fb_damage_clips(cursor_plane);
987
988 ast->vram_fb_available -= size;
989
990 return 0;
991}
992
993/*
994 * CRTC
995 */
996
997static void ast_crtc_dpms(struct drm_crtc *crtc, int mode)
998{
999 struct ast_private *ast = to_ast_private(crtc->dev);
1000 u8 ch = AST_DPMS_VSYNC_OFF | AST_DPMS_HSYNC_OFF;
1001 struct ast_crtc_state *ast_state;
1002 const struct drm_format_info *format;
1003 struct ast_vbios_mode_info *vbios_mode_info;
1004
1005 /* TODO: Maybe control display signal generation with
1006 * Sync Enable (bit CR17.7).
1007 */
1008 switch (mode) {
1009 case DRM_MODE_DPMS_ON:
1010 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x01, 0xdf, 0);
1011 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0xfc, 0);
1012 if (ast->tx_chip_types & AST_TX_DP501_BIT)
1013 ast_set_dp501_video_output(crtc->dev, 1);
1014
1015 if (ast->tx_chip_types & AST_TX_ASTDP_BIT) {
1016 ast_dp_power_on_off(crtc->dev, AST_DP_POWER_ON);
1017 ast_wait_for_vretrace(ast);
1018 ast_dp_set_on_off(crtc->dev, 1);
1019 }
1020
1021 ast_state = to_ast_crtc_state(crtc->state);
1022 format = ast_state->format;
1023
1024 if (format) {
1025 vbios_mode_info = &ast_state->vbios_mode_info;
1026
1027 ast_set_color_reg(ast, format);
1028 ast_set_vbios_color_reg(ast, format, vbios_mode_info);
1029 if (crtc->state->gamma_lut)
1030 ast_crtc_set_gamma(ast, format, crtc->state->gamma_lut->data);
1031 else
1032 ast_crtc_set_gamma_linear(ast, format);
1033 }
1034 break;
1035 case DRM_MODE_DPMS_STANDBY:
1036 case DRM_MODE_DPMS_SUSPEND:
1037 case DRM_MODE_DPMS_OFF:
1038 ch = mode;
1039 if (ast->tx_chip_types & AST_TX_DP501_BIT)
1040 ast_set_dp501_video_output(crtc->dev, 0);
1041
1042 if (ast->tx_chip_types & AST_TX_ASTDP_BIT) {
1043 ast_dp_set_on_off(crtc->dev, 0);
1044 ast_dp_power_on_off(crtc->dev, AST_DP_POWER_OFF);
1045 }
1046
1047 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x01, 0xdf, 0x20);
1048 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0xfc, ch);
1049 break;
1050 }
1051}
1052
1053static enum drm_mode_status
1054ast_crtc_helper_mode_valid(struct drm_crtc *crtc, const struct drm_display_mode *mode)
1055{
1056 struct ast_private *ast = to_ast_private(crtc->dev);
1057 enum drm_mode_status status;
1058 uint32_t jtemp;
1059
1060 if (ast->support_wide_screen) {
1061 if ((mode->hdisplay == 1680) && (mode->vdisplay == 1050))
1062 return MODE_OK;
1063 if ((mode->hdisplay == 1280) && (mode->vdisplay == 800))
1064 return MODE_OK;
1065 if ((mode->hdisplay == 1440) && (mode->vdisplay == 900))
1066 return MODE_OK;
1067 if ((mode->hdisplay == 1360) && (mode->vdisplay == 768))
1068 return MODE_OK;
1069 if ((mode->hdisplay == 1600) && (mode->vdisplay == 900))
1070 return MODE_OK;
1071 if ((mode->hdisplay == 1152) && (mode->vdisplay == 864))
1072 return MODE_OK;
1073
1074 if ((ast->chip == AST2100) || (ast->chip == AST2200) ||
1075 (ast->chip == AST2300) || (ast->chip == AST2400) ||
1076 (ast->chip == AST2500) || (ast->chip == AST2600)) {
1077 if ((mode->hdisplay == 1920) && (mode->vdisplay == 1080))
1078 return MODE_OK;
1079
1080 if ((mode->hdisplay == 1920) && (mode->vdisplay == 1200)) {
1081 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff);
1082 if (jtemp & 0x01)
1083 return MODE_NOMODE;
1084 else
1085 return MODE_OK;
1086 }
1087 }
1088 }
1089
1090 status = MODE_NOMODE;
1091
1092 switch (mode->hdisplay) {
1093 case 640:
1094 if (mode->vdisplay == 480)
1095 status = MODE_OK;
1096 break;
1097 case 800:
1098 if (mode->vdisplay == 600)
1099 status = MODE_OK;
1100 break;
1101 case 1024:
1102 if (mode->vdisplay == 768)
1103 status = MODE_OK;
1104 break;
1105 case 1152:
1106 if (mode->vdisplay == 864)
1107 status = MODE_OK;
1108 break;
1109 case 1280:
1110 if (mode->vdisplay == 1024)
1111 status = MODE_OK;
1112 break;
1113 case 1600:
1114 if (mode->vdisplay == 1200)
1115 status = MODE_OK;
1116 break;
1117 default:
1118 break;
1119 }
1120
1121 return status;
1122}
1123
1124static int ast_crtc_helper_atomic_check(struct drm_crtc *crtc,
1125 struct drm_atomic_state *state)
1126{
1127 struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
1128 struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state, crtc);
1129 struct ast_crtc_state *old_ast_crtc_state = to_ast_crtc_state(old_crtc_state);
1130 struct drm_device *dev = crtc->dev;
1131 struct ast_crtc_state *ast_state;
1132 const struct drm_format_info *format;
1133 bool succ;
1134 int ret;
1135
1136 if (!crtc_state->enable)
1137 return 0;
1138
1139 ret = drm_atomic_helper_check_crtc_primary_plane(crtc_state);
1140 if (ret)
1141 return ret;
1142
1143 ast_state = to_ast_crtc_state(crtc_state);
1144
1145 format = ast_state->format;
1146 if (drm_WARN_ON_ONCE(dev, !format))
1147 return -EINVAL; /* BUG: We didn't set format in primary check(). */
1148
1149 /*
1150 * The gamma LUT has to be reloaded after changing the primary
1151 * plane's color format.
1152 */
1153 if (old_ast_crtc_state->format != format)
1154 crtc_state->color_mgmt_changed = true;
1155
1156 if (crtc_state->color_mgmt_changed && crtc_state->gamma_lut) {
1157 if (crtc_state->gamma_lut->length !=
1158 AST_LUT_SIZE * sizeof(struct drm_color_lut)) {
1159 drm_err(dev, "Wrong size for gamma_lut %zu\n",
1160 crtc_state->gamma_lut->length);
1161 return -EINVAL;
1162 }
1163 }
1164
1165 succ = ast_get_vbios_mode_info(format, &crtc_state->mode,
1166 &crtc_state->adjusted_mode,
1167 &ast_state->vbios_mode_info);
1168 if (!succ)
1169 return -EINVAL;
1170
1171 return 0;
1172}
1173
1174static void
1175ast_crtc_helper_atomic_flush(struct drm_crtc *crtc,
1176 struct drm_atomic_state *state)
1177{
1178 struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
1179 crtc);
1180 struct drm_device *dev = crtc->dev;
1181 struct ast_private *ast = to_ast_private(dev);
1182 struct ast_crtc_state *ast_crtc_state = to_ast_crtc_state(crtc_state);
1183 struct ast_vbios_mode_info *vbios_mode_info = &ast_crtc_state->vbios_mode_info;
1184
1185 /*
1186 * The gamma LUT has to be reloaded after changing the primary
1187 * plane's color format.
1188 */
1189 if (crtc_state->enable && crtc_state->color_mgmt_changed) {
1190 if (crtc_state->gamma_lut)
1191 ast_crtc_set_gamma(ast,
1192 ast_crtc_state->format,
1193 crtc_state->gamma_lut->data);
1194 else
1195 ast_crtc_set_gamma_linear(ast, ast_crtc_state->format);
1196 }
1197
1198 //Set Aspeed Display-Port
1199 if (ast->tx_chip_types & AST_TX_ASTDP_BIT)
1200 ast_dp_set_mode(crtc, vbios_mode_info);
1201}
1202
1203static void ast_crtc_helper_atomic_enable(struct drm_crtc *crtc, struct drm_atomic_state *state)
1204{
1205 struct drm_device *dev = crtc->dev;
1206 struct ast_private *ast = to_ast_private(dev);
1207 struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
1208 struct ast_crtc_state *ast_crtc_state = to_ast_crtc_state(crtc_state);
1209 struct ast_vbios_mode_info *vbios_mode_info =
1210 &ast_crtc_state->vbios_mode_info;
1211 struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode;
1212
1213 ast_set_vbios_mode_reg(ast, adjusted_mode, vbios_mode_info);
1214 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa1, 0x06);
1215 ast_set_std_reg(ast, adjusted_mode, vbios_mode_info);
1216 ast_set_crtc_reg(ast, adjusted_mode, vbios_mode_info);
1217 ast_set_dclk_reg(ast, adjusted_mode, vbios_mode_info);
1218 ast_set_crtthd_reg(ast);
1219 ast_set_sync_reg(ast, adjusted_mode, vbios_mode_info);
1220
1221 ast_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
1222}
1223
1224static void ast_crtc_helper_atomic_disable(struct drm_crtc *crtc, struct drm_atomic_state *state)
1225{
1226 struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state, crtc);
1227 struct drm_device *dev = crtc->dev;
1228 struct ast_private *ast = to_ast_private(dev);
1229
1230 ast_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
1231
1232 /*
1233 * HW cursors require the underlying primary plane and CRTC to
1234 * display a valid mode and image. This is not the case during
1235 * full modeset operations. So we temporarily disable any active
1236 * plane, including the HW cursor. Each plane's atomic_update()
1237 * helper will re-enable it if necessary.
1238 *
1239 * We only do this during *full* modesets. It does not affect
1240 * simple pageflips on the planes.
1241 */
1242 drm_atomic_helper_disable_planes_on_crtc(old_crtc_state, false);
1243
1244 /*
1245 * Ensure that no scanout takes place before reprogramming mode
1246 * and format registers.
1247 */
1248 ast_wait_for_vretrace(ast);
1249}
1250
1251static const struct drm_crtc_helper_funcs ast_crtc_helper_funcs = {
1252 .mode_valid = ast_crtc_helper_mode_valid,
1253 .atomic_check = ast_crtc_helper_atomic_check,
1254 .atomic_flush = ast_crtc_helper_atomic_flush,
1255 .atomic_enable = ast_crtc_helper_atomic_enable,
1256 .atomic_disable = ast_crtc_helper_atomic_disable,
1257};
1258
1259static void ast_crtc_reset(struct drm_crtc *crtc)
1260{
1261 struct ast_crtc_state *ast_state =
1262 kzalloc(sizeof(*ast_state), GFP_KERNEL);
1263
1264 if (crtc->state)
1265 crtc->funcs->atomic_destroy_state(crtc, crtc->state);
1266
1267 if (ast_state)
1268 __drm_atomic_helper_crtc_reset(crtc, &ast_state->base);
1269 else
1270 __drm_atomic_helper_crtc_reset(crtc, NULL);
1271}
1272
1273static struct drm_crtc_state *
1274ast_crtc_atomic_duplicate_state(struct drm_crtc *crtc)
1275{
1276 struct ast_crtc_state *new_ast_state, *ast_state;
1277 struct drm_device *dev = crtc->dev;
1278
1279 if (drm_WARN_ON(dev, !crtc->state))
1280 return NULL;
1281
1282 new_ast_state = kmalloc(sizeof(*new_ast_state), GFP_KERNEL);
1283 if (!new_ast_state)
1284 return NULL;
1285 __drm_atomic_helper_crtc_duplicate_state(crtc, &new_ast_state->base);
1286
1287 ast_state = to_ast_crtc_state(crtc->state);
1288
1289 new_ast_state->format = ast_state->format;
1290 memcpy(&new_ast_state->vbios_mode_info, &ast_state->vbios_mode_info,
1291 sizeof(new_ast_state->vbios_mode_info));
1292
1293 return &new_ast_state->base;
1294}
1295
1296static void ast_crtc_atomic_destroy_state(struct drm_crtc *crtc,
1297 struct drm_crtc_state *state)
1298{
1299 struct ast_crtc_state *ast_state = to_ast_crtc_state(state);
1300
1301 __drm_atomic_helper_crtc_destroy_state(&ast_state->base);
1302 kfree(ast_state);
1303}
1304
1305static const struct drm_crtc_funcs ast_crtc_funcs = {
1306 .reset = ast_crtc_reset,
1307 .destroy = drm_crtc_cleanup,
1308 .set_config = drm_atomic_helper_set_config,
1309 .page_flip = drm_atomic_helper_page_flip,
1310 .atomic_duplicate_state = ast_crtc_atomic_duplicate_state,
1311 .atomic_destroy_state = ast_crtc_atomic_destroy_state,
1312};
1313
1314static int ast_crtc_init(struct drm_device *dev)
1315{
1316 struct ast_private *ast = to_ast_private(dev);
1317 struct drm_crtc *crtc = &ast->crtc;
1318 int ret;
1319
1320 ret = drm_crtc_init_with_planes(dev, crtc, &ast->primary_plane.base,
1321 &ast->cursor_plane.base, &ast_crtc_funcs,
1322 NULL);
1323 if (ret)
1324 return ret;
1325
1326 drm_mode_crtc_set_gamma_size(crtc, AST_LUT_SIZE);
1327 drm_crtc_enable_color_mgmt(crtc, 0, false, AST_LUT_SIZE);
1328
1329 drm_crtc_helper_add(crtc, &ast_crtc_helper_funcs);
1330
1331 return 0;
1332}
1333
1334/*
1335 * VGA Connector
1336 */
1337
1338static int ast_vga_connector_helper_get_modes(struct drm_connector *connector)
1339{
1340 struct ast_vga_connector *ast_vga_connector = to_ast_vga_connector(connector);
1341 struct drm_device *dev = connector->dev;
1342 struct ast_private *ast = to_ast_private(dev);
1343 struct edid *edid;
1344 int count;
1345
1346 if (!ast_vga_connector->i2c)
1347 goto err_drm_connector_update_edid_property;
1348
1349 /*
1350 * Protect access to I/O registers from concurrent modesetting
1351 * by acquiring the I/O-register lock.
1352 */
1353 mutex_lock(&ast->ioregs_lock);
1354
1355 edid = drm_get_edid(connector, &ast_vga_connector->i2c->adapter);
1356 if (!edid)
1357 goto err_mutex_unlock;
1358
1359 mutex_unlock(&ast->ioregs_lock);
1360
1361 count = drm_add_edid_modes(connector, edid);
1362 kfree(edid);
1363
1364 return count;
1365
1366err_mutex_unlock:
1367 mutex_unlock(&ast->ioregs_lock);
1368err_drm_connector_update_edid_property:
1369 drm_connector_update_edid_property(connector, NULL);
1370 return 0;
1371}
1372
1373static const struct drm_connector_helper_funcs ast_vga_connector_helper_funcs = {
1374 .get_modes = ast_vga_connector_helper_get_modes,
1375};
1376
1377static const struct drm_connector_funcs ast_vga_connector_funcs = {
1378 .reset = drm_atomic_helper_connector_reset,
1379 .fill_modes = drm_helper_probe_single_connector_modes,
1380 .destroy = drm_connector_cleanup,
1381 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1382 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1383};
1384
1385static int ast_vga_connector_init(struct drm_device *dev,
1386 struct ast_vga_connector *ast_vga_connector)
1387{
1388 struct drm_connector *connector = &ast_vga_connector->base;
1389 int ret;
1390
1391 ast_vga_connector->i2c = ast_i2c_create(dev);
1392 if (!ast_vga_connector->i2c)
1393 drm_err(dev, "failed to add ddc bus for connector\n");
1394
1395 if (ast_vga_connector->i2c)
1396 ret = drm_connector_init_with_ddc(dev, connector, &ast_vga_connector_funcs,
1397 DRM_MODE_CONNECTOR_VGA,
1398 &ast_vga_connector->i2c->adapter);
1399 else
1400 ret = drm_connector_init(dev, connector, &ast_vga_connector_funcs,
1401 DRM_MODE_CONNECTOR_VGA);
1402 if (ret)
1403 return ret;
1404
1405 drm_connector_helper_add(connector, &ast_vga_connector_helper_funcs);
1406
1407 connector->interlace_allowed = 0;
1408 connector->doublescan_allowed = 0;
1409
1410 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1411
1412 return 0;
1413}
1414
1415static int ast_vga_output_init(struct ast_private *ast)
1416{
1417 struct drm_device *dev = &ast->base;
1418 struct drm_crtc *crtc = &ast->crtc;
1419 struct drm_encoder *encoder = &ast->output.vga.encoder;
1420 struct ast_vga_connector *ast_vga_connector = &ast->output.vga.vga_connector;
1421 struct drm_connector *connector = &ast_vga_connector->base;
1422 int ret;
1423
1424 ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_DAC);
1425 if (ret)
1426 return ret;
1427 encoder->possible_crtcs = drm_crtc_mask(crtc);
1428
1429 ret = ast_vga_connector_init(dev, ast_vga_connector);
1430 if (ret)
1431 return ret;
1432
1433 ret = drm_connector_attach_encoder(connector, encoder);
1434 if (ret)
1435 return ret;
1436
1437 return 0;
1438}
1439
1440/*
1441 * SIL164 Connector
1442 */
1443
1444static int ast_sil164_connector_helper_get_modes(struct drm_connector *connector)
1445{
1446 struct ast_sil164_connector *ast_sil164_connector = to_ast_sil164_connector(connector);
1447 struct drm_device *dev = connector->dev;
1448 struct ast_private *ast = to_ast_private(dev);
1449 struct edid *edid;
1450 int count;
1451
1452 if (!ast_sil164_connector->i2c)
1453 goto err_drm_connector_update_edid_property;
1454
1455 /*
1456 * Protect access to I/O registers from concurrent modesetting
1457 * by acquiring the I/O-register lock.
1458 */
1459 mutex_lock(&ast->ioregs_lock);
1460
1461 edid = drm_get_edid(connector, &ast_sil164_connector->i2c->adapter);
1462 if (!edid)
1463 goto err_mutex_unlock;
1464
1465 mutex_unlock(&ast->ioregs_lock);
1466
1467 count = drm_add_edid_modes(connector, edid);
1468 kfree(edid);
1469
1470 return count;
1471
1472err_mutex_unlock:
1473 mutex_unlock(&ast->ioregs_lock);
1474err_drm_connector_update_edid_property:
1475 drm_connector_update_edid_property(connector, NULL);
1476 return 0;
1477}
1478
1479static const struct drm_connector_helper_funcs ast_sil164_connector_helper_funcs = {
1480 .get_modes = ast_sil164_connector_helper_get_modes,
1481};
1482
1483static const struct drm_connector_funcs ast_sil164_connector_funcs = {
1484 .reset = drm_atomic_helper_connector_reset,
1485 .fill_modes = drm_helper_probe_single_connector_modes,
1486 .destroy = drm_connector_cleanup,
1487 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1488 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1489};
1490
1491static int ast_sil164_connector_init(struct drm_device *dev,
1492 struct ast_sil164_connector *ast_sil164_connector)
1493{
1494 struct drm_connector *connector = &ast_sil164_connector->base;
1495 int ret;
1496
1497 ast_sil164_connector->i2c = ast_i2c_create(dev);
1498 if (!ast_sil164_connector->i2c)
1499 drm_err(dev, "failed to add ddc bus for connector\n");
1500
1501 if (ast_sil164_connector->i2c)
1502 ret = drm_connector_init_with_ddc(dev, connector, &ast_sil164_connector_funcs,
1503 DRM_MODE_CONNECTOR_DVII,
1504 &ast_sil164_connector->i2c->adapter);
1505 else
1506 ret = drm_connector_init(dev, connector, &ast_sil164_connector_funcs,
1507 DRM_MODE_CONNECTOR_DVII);
1508 if (ret)
1509 return ret;
1510
1511 drm_connector_helper_add(connector, &ast_sil164_connector_helper_funcs);
1512
1513 connector->interlace_allowed = 0;
1514 connector->doublescan_allowed = 0;
1515
1516 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1517
1518 return 0;
1519}
1520
1521static int ast_sil164_output_init(struct ast_private *ast)
1522{
1523 struct drm_device *dev = &ast->base;
1524 struct drm_crtc *crtc = &ast->crtc;
1525 struct drm_encoder *encoder = &ast->output.sil164.encoder;
1526 struct ast_sil164_connector *ast_sil164_connector = &ast->output.sil164.sil164_connector;
1527 struct drm_connector *connector = &ast_sil164_connector->base;
1528 int ret;
1529
1530 ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_TMDS);
1531 if (ret)
1532 return ret;
1533 encoder->possible_crtcs = drm_crtc_mask(crtc);
1534
1535 ret = ast_sil164_connector_init(dev, ast_sil164_connector);
1536 if (ret)
1537 return ret;
1538
1539 ret = drm_connector_attach_encoder(connector, encoder);
1540 if (ret)
1541 return ret;
1542
1543 return 0;
1544}
1545
1546/*
1547 * DP501 Connector
1548 */
1549
1550static int ast_dp501_connector_helper_get_modes(struct drm_connector *connector)
1551{
1552 void *edid;
1553 bool succ;
1554 int count;
1555
1556 edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
1557 if (!edid)
1558 goto err_drm_connector_update_edid_property;
1559
1560 succ = ast_dp501_read_edid(connector->dev, edid);
1561 if (!succ)
1562 goto err_kfree;
1563
1564 drm_connector_update_edid_property(connector, edid);
1565 count = drm_add_edid_modes(connector, edid);
1566 kfree(edid);
1567
1568 return count;
1569
1570err_kfree:
1571 kfree(edid);
1572err_drm_connector_update_edid_property:
1573 drm_connector_update_edid_property(connector, NULL);
1574 return 0;
1575}
1576
1577static const struct drm_connector_helper_funcs ast_dp501_connector_helper_funcs = {
1578 .get_modes = ast_dp501_connector_helper_get_modes,
1579};
1580
1581static const struct drm_connector_funcs ast_dp501_connector_funcs = {
1582 .reset = drm_atomic_helper_connector_reset,
1583 .fill_modes = drm_helper_probe_single_connector_modes,
1584 .destroy = drm_connector_cleanup,
1585 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1586 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1587};
1588
1589static int ast_dp501_connector_init(struct drm_device *dev, struct drm_connector *connector)
1590{
1591 int ret;
1592
1593 ret = drm_connector_init(dev, connector, &ast_dp501_connector_funcs,
1594 DRM_MODE_CONNECTOR_DisplayPort);
1595 if (ret)
1596 return ret;
1597
1598 drm_connector_helper_add(connector, &ast_dp501_connector_helper_funcs);
1599
1600 connector->interlace_allowed = 0;
1601 connector->doublescan_allowed = 0;
1602
1603 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1604
1605 return 0;
1606}
1607
1608static int ast_dp501_output_init(struct ast_private *ast)
1609{
1610 struct drm_device *dev = &ast->base;
1611 struct drm_crtc *crtc = &ast->crtc;
1612 struct drm_encoder *encoder = &ast->output.dp501.encoder;
1613 struct drm_connector *connector = &ast->output.dp501.connector;
1614 int ret;
1615
1616 ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_TMDS);
1617 if (ret)
1618 return ret;
1619 encoder->possible_crtcs = drm_crtc_mask(crtc);
1620
1621 ret = ast_dp501_connector_init(dev, connector);
1622 if (ret)
1623 return ret;
1624
1625 ret = drm_connector_attach_encoder(connector, encoder);
1626 if (ret)
1627 return ret;
1628
1629 return 0;
1630}
1631
1632/*
1633 * ASPEED Display-Port Connector
1634 */
1635
1636static int ast_astdp_connector_helper_get_modes(struct drm_connector *connector)
1637{
1638 void *edid;
1639
1640 int succ;
1641 int count;
1642
1643 edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
1644 if (!edid)
1645 goto err_drm_connector_update_edid_property;
1646
1647 succ = ast_astdp_read_edid(connector->dev, edid);
1648 if (succ < 0)
1649 goto err_kfree;
1650
1651 drm_connector_update_edid_property(connector, edid);
1652 count = drm_add_edid_modes(connector, edid);
1653 kfree(edid);
1654
1655 return count;
1656
1657err_kfree:
1658 kfree(edid);
1659err_drm_connector_update_edid_property:
1660 drm_connector_update_edid_property(connector, NULL);
1661 return 0;
1662}
1663
1664static const struct drm_connector_helper_funcs ast_astdp_connector_helper_funcs = {
1665 .get_modes = ast_astdp_connector_helper_get_modes,
1666};
1667
1668static const struct drm_connector_funcs ast_astdp_connector_funcs = {
1669 .reset = drm_atomic_helper_connector_reset,
1670 .fill_modes = drm_helper_probe_single_connector_modes,
1671 .destroy = drm_connector_cleanup,
1672 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1673 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1674};
1675
1676static int ast_astdp_connector_init(struct drm_device *dev, struct drm_connector *connector)
1677{
1678 int ret;
1679
1680 ret = drm_connector_init(dev, connector, &ast_astdp_connector_funcs,
1681 DRM_MODE_CONNECTOR_DisplayPort);
1682 if (ret)
1683 return ret;
1684
1685 drm_connector_helper_add(connector, &ast_astdp_connector_helper_funcs);
1686
1687 connector->interlace_allowed = 0;
1688 connector->doublescan_allowed = 0;
1689
1690 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1691
1692 return 0;
1693}
1694
1695static int ast_astdp_output_init(struct ast_private *ast)
1696{
1697 struct drm_device *dev = &ast->base;
1698 struct drm_crtc *crtc = &ast->crtc;
1699 struct drm_encoder *encoder = &ast->output.astdp.encoder;
1700 struct drm_connector *connector = &ast->output.astdp.connector;
1701 int ret;
1702
1703 ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_TMDS);
1704 if (ret)
1705 return ret;
1706 encoder->possible_crtcs = drm_crtc_mask(crtc);
1707
1708 ret = ast_astdp_connector_init(dev, connector);
1709 if (ret)
1710 return ret;
1711
1712 ret = drm_connector_attach_encoder(connector, encoder);
1713 if (ret)
1714 return ret;
1715
1716 return 0;
1717}
1718
1719/*
1720 * Mode config
1721 */
1722
1723static void ast_mode_config_helper_atomic_commit_tail(struct drm_atomic_state *state)
1724{
1725 struct ast_private *ast = to_ast_private(state->dev);
1726
1727 /*
1728 * Concurrent operations could possibly trigger a call to
1729 * drm_connector_helper_funcs.get_modes by trying to read the
1730 * display modes. Protect access to I/O registers by acquiring
1731 * the I/O-register lock. Released in atomic_flush().
1732 */
1733 mutex_lock(&ast->ioregs_lock);
1734 drm_atomic_helper_commit_tail_rpm(state);
1735 mutex_unlock(&ast->ioregs_lock);
1736}
1737
1738static const struct drm_mode_config_helper_funcs ast_mode_config_helper_funcs = {
1739 .atomic_commit_tail = ast_mode_config_helper_atomic_commit_tail,
1740};
1741
1742static enum drm_mode_status ast_mode_config_mode_valid(struct drm_device *dev,
1743 const struct drm_display_mode *mode)
1744{
1745 static const unsigned long max_bpp = 4; /* DRM_FORMAT_XRGB8888 */
1746 struct ast_private *ast = to_ast_private(dev);
1747 unsigned long fbsize, fbpages, max_fbpages;
1748
1749 max_fbpages = (ast->vram_fb_available) >> PAGE_SHIFT;
1750
1751 fbsize = mode->hdisplay * mode->vdisplay * max_bpp;
1752 fbpages = DIV_ROUND_UP(fbsize, PAGE_SIZE);
1753
1754 if (fbpages > max_fbpages)
1755 return MODE_MEM;
1756
1757 return MODE_OK;
1758}
1759
1760static const struct drm_mode_config_funcs ast_mode_config_funcs = {
1761 .fb_create = drm_gem_fb_create_with_dirty,
1762 .mode_valid = ast_mode_config_mode_valid,
1763 .atomic_check = drm_atomic_helper_check,
1764 .atomic_commit = drm_atomic_helper_commit,
1765};
1766
1767int ast_mode_config_init(struct ast_private *ast)
1768{
1769 struct drm_device *dev = &ast->base;
1770 int ret;
1771
1772 ret = drmm_mode_config_init(dev);
1773 if (ret)
1774 return ret;
1775
1776 dev->mode_config.funcs = &ast_mode_config_funcs;
1777 dev->mode_config.min_width = 0;
1778 dev->mode_config.min_height = 0;
1779 dev->mode_config.preferred_depth = 24;
1780
1781 if (ast->chip == AST2100 ||
1782 ast->chip == AST2200 ||
1783 ast->chip == AST2300 ||
1784 ast->chip == AST2400 ||
1785 ast->chip == AST2500 ||
1786 ast->chip == AST2600) {
1787 dev->mode_config.max_width = 1920;
1788 dev->mode_config.max_height = 2048;
1789 } else {
1790 dev->mode_config.max_width = 1600;
1791 dev->mode_config.max_height = 1200;
1792 }
1793
1794 dev->mode_config.helper_private = &ast_mode_config_helper_funcs;
1795
1796 ret = ast_primary_plane_init(ast);
1797 if (ret)
1798 return ret;
1799
1800 ret = ast_cursor_plane_init(ast);
1801 if (ret)
1802 return ret;
1803
1804 ast_crtc_init(dev);
1805
1806 if (ast->tx_chip_types & AST_TX_NONE_BIT) {
1807 ret = ast_vga_output_init(ast);
1808 if (ret)
1809 return ret;
1810 }
1811 if (ast->tx_chip_types & AST_TX_SIL164_BIT) {
1812 ret = ast_sil164_output_init(ast);
1813 if (ret)
1814 return ret;
1815 }
1816 if (ast->tx_chip_types & AST_TX_DP501_BIT) {
1817 ret = ast_dp501_output_init(ast);
1818 if (ret)
1819 return ret;
1820 }
1821 if (ast->tx_chip_types & AST_TX_ASTDP_BIT) {
1822 ret = ast_astdp_output_init(ast);
1823 if (ret)
1824 return ret;
1825 }
1826
1827 drm_mode_config_reset(dev);
1828
1829 return 0;
1830}