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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_crtc.h>
35#include <drm/drm_crtc_helper.h>
36#include <drm/drm_fourcc.h>
37#include <drm/drm_gem_vram_helper.h>
38#include <drm/drm_plane_helper.h>
39#include <drm/drm_probe_helper.h>
40
41#include "ast_drv.h"
42#include "ast_tables.h"
43
44static struct ast_i2c_chan *ast_i2c_create(struct drm_device *dev);
45static void ast_i2c_destroy(struct ast_i2c_chan *i2c);
46static int ast_cursor_set(struct drm_crtc *crtc,
47 struct drm_file *file_priv,
48 uint32_t handle,
49 uint32_t width,
50 uint32_t height);
51static int ast_cursor_move(struct drm_crtc *crtc,
52 int x, int y);
53
54static inline void ast_load_palette_index(struct ast_private *ast,
55 u8 index, u8 red, u8 green,
56 u8 blue)
57{
58 ast_io_write8(ast, AST_IO_DAC_INDEX_WRITE, index);
59 ast_io_read8(ast, AST_IO_SEQ_PORT);
60 ast_io_write8(ast, AST_IO_DAC_DATA, red);
61 ast_io_read8(ast, AST_IO_SEQ_PORT);
62 ast_io_write8(ast, AST_IO_DAC_DATA, green);
63 ast_io_read8(ast, AST_IO_SEQ_PORT);
64 ast_io_write8(ast, AST_IO_DAC_DATA, blue);
65 ast_io_read8(ast, AST_IO_SEQ_PORT);
66}
67
68static void ast_crtc_load_lut(struct drm_crtc *crtc)
69{
70 struct ast_private *ast = crtc->dev->dev_private;
71 u16 *r, *g, *b;
72 int i;
73
74 if (!crtc->enabled)
75 return;
76
77 r = crtc->gamma_store;
78 g = r + crtc->gamma_size;
79 b = g + crtc->gamma_size;
80
81 for (i = 0; i < 256; i++)
82 ast_load_palette_index(ast, i, *r++ >> 8, *g++ >> 8, *b++ >> 8);
83}
84
85static bool ast_get_vbios_mode_info(struct drm_crtc *crtc, struct drm_display_mode *mode,
86 struct drm_display_mode *adjusted_mode,
87 struct ast_vbios_mode_info *vbios_mode)
88{
89 struct ast_private *ast = crtc->dev->dev_private;
90 const struct drm_framebuffer *fb = crtc->primary->fb;
91 u32 refresh_rate_index = 0, mode_id, color_index, refresh_rate;
92 const struct ast_vbios_enhtable *best = NULL;
93 u32 hborder, vborder;
94 bool check_sync;
95
96 switch (fb->format->cpp[0] * 8) {
97 case 8:
98 vbios_mode->std_table = &vbios_stdtable[VGAModeIndex];
99 color_index = VGAModeIndex - 1;
100 break;
101 case 16:
102 vbios_mode->std_table = &vbios_stdtable[HiCModeIndex];
103 color_index = HiCModeIndex;
104 break;
105 case 24:
106 case 32:
107 vbios_mode->std_table = &vbios_stdtable[TrueCModeIndex];
108 color_index = TrueCModeIndex;
109 break;
110 default:
111 return false;
112 }
113
114 switch (crtc->mode.crtc_hdisplay) {
115 case 640:
116 vbios_mode->enh_table = &res_640x480[refresh_rate_index];
117 break;
118 case 800:
119 vbios_mode->enh_table = &res_800x600[refresh_rate_index];
120 break;
121 case 1024:
122 vbios_mode->enh_table = &res_1024x768[refresh_rate_index];
123 break;
124 case 1280:
125 if (crtc->mode.crtc_vdisplay == 800)
126 vbios_mode->enh_table = &res_1280x800[refresh_rate_index];
127 else
128 vbios_mode->enh_table = &res_1280x1024[refresh_rate_index];
129 break;
130 case 1360:
131 vbios_mode->enh_table = &res_1360x768[refresh_rate_index];
132 break;
133 case 1440:
134 vbios_mode->enh_table = &res_1440x900[refresh_rate_index];
135 break;
136 case 1600:
137 if (crtc->mode.crtc_vdisplay == 900)
138 vbios_mode->enh_table = &res_1600x900[refresh_rate_index];
139 else
140 vbios_mode->enh_table = &res_1600x1200[refresh_rate_index];
141 break;
142 case 1680:
143 vbios_mode->enh_table = &res_1680x1050[refresh_rate_index];
144 break;
145 case 1920:
146 if (crtc->mode.crtc_vdisplay == 1080)
147 vbios_mode->enh_table = &res_1920x1080[refresh_rate_index];
148 else
149 vbios_mode->enh_table = &res_1920x1200[refresh_rate_index];
150 break;
151 default:
152 return false;
153 }
154
155 refresh_rate = drm_mode_vrefresh(mode);
156 check_sync = vbios_mode->enh_table->flags & WideScreenMode;
157 do {
158 const struct ast_vbios_enhtable *loop = vbios_mode->enh_table;
159
160 while (loop->refresh_rate != 0xff) {
161 if ((check_sync) &&
162 (((mode->flags & DRM_MODE_FLAG_NVSYNC) &&
163 (loop->flags & PVSync)) ||
164 ((mode->flags & DRM_MODE_FLAG_PVSYNC) &&
165 (loop->flags & NVSync)) ||
166 ((mode->flags & DRM_MODE_FLAG_NHSYNC) &&
167 (loop->flags & PHSync)) ||
168 ((mode->flags & DRM_MODE_FLAG_PHSYNC) &&
169 (loop->flags & NHSync)))) {
170 loop++;
171 continue;
172 }
173 if (loop->refresh_rate <= refresh_rate
174 && (!best || loop->refresh_rate > best->refresh_rate))
175 best = loop;
176 loop++;
177 }
178 if (best || !check_sync)
179 break;
180 check_sync = 0;
181 } while (1);
182 if (best)
183 vbios_mode->enh_table = best;
184
185 hborder = (vbios_mode->enh_table->flags & HBorder) ? 8 : 0;
186 vborder = (vbios_mode->enh_table->flags & VBorder) ? 8 : 0;
187
188 adjusted_mode->crtc_htotal = vbios_mode->enh_table->ht;
189 adjusted_mode->crtc_hblank_start = vbios_mode->enh_table->hde + hborder;
190 adjusted_mode->crtc_hblank_end = vbios_mode->enh_table->ht - hborder;
191 adjusted_mode->crtc_hsync_start = vbios_mode->enh_table->hde + hborder +
192 vbios_mode->enh_table->hfp;
193 adjusted_mode->crtc_hsync_end = (vbios_mode->enh_table->hde + hborder +
194 vbios_mode->enh_table->hfp +
195 vbios_mode->enh_table->hsync);
196
197 adjusted_mode->crtc_vtotal = vbios_mode->enh_table->vt;
198 adjusted_mode->crtc_vblank_start = vbios_mode->enh_table->vde + vborder;
199 adjusted_mode->crtc_vblank_end = vbios_mode->enh_table->vt - vborder;
200 adjusted_mode->crtc_vsync_start = vbios_mode->enh_table->vde + vborder +
201 vbios_mode->enh_table->vfp;
202 adjusted_mode->crtc_vsync_end = (vbios_mode->enh_table->vde + vborder +
203 vbios_mode->enh_table->vfp +
204 vbios_mode->enh_table->vsync);
205
206 refresh_rate_index = vbios_mode->enh_table->refresh_rate_index;
207 mode_id = vbios_mode->enh_table->mode_id;
208
209 if (ast->chip == AST1180) {
210 /* TODO 1180 */
211 } else {
212 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8c, (u8)((color_index & 0xf) << 4));
213 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8d, refresh_rate_index & 0xff);
214 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8e, mode_id & 0xff);
215
216 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0x00);
217 if (vbios_mode->enh_table->flags & NewModeInfo) {
218 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0xa8);
219 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x92,
220 fb->format->cpp[0] * 8);
221 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x93, adjusted_mode->clock / 1000);
222 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x94, adjusted_mode->crtc_hdisplay);
223 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x95, adjusted_mode->crtc_hdisplay >> 8);
224
225 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x96, adjusted_mode->crtc_vdisplay);
226 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x97, adjusted_mode->crtc_vdisplay >> 8);
227 }
228 }
229
230 return true;
231
232
233}
234static void ast_set_std_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
235 struct ast_vbios_mode_info *vbios_mode)
236{
237 struct ast_private *ast = crtc->dev->dev_private;
238 const struct ast_vbios_stdtable *stdtable;
239 u32 i;
240 u8 jreg;
241
242 stdtable = vbios_mode->std_table;
243
244 jreg = stdtable->misc;
245 ast_io_write8(ast, AST_IO_MISC_PORT_WRITE, jreg);
246
247 /* Set SEQ */
248 ast_set_index_reg(ast, AST_IO_SEQ_PORT, 0x00, 0x03);
249 for (i = 0; i < 4; i++) {
250 jreg = stdtable->seq[i];
251 if (!i)
252 jreg |= 0x20;
253 ast_set_index_reg(ast, AST_IO_SEQ_PORT, (i + 1) , jreg);
254 }
255
256 /* Set CRTC */
257 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x00);
258 for (i = 0; i < 25; i++)
259 ast_set_index_reg(ast, AST_IO_CRTC_PORT, i, stdtable->crtc[i]);
260
261 /* set AR */
262 jreg = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
263 for (i = 0; i < 20; i++) {
264 jreg = stdtable->ar[i];
265 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, (u8)i);
266 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, jreg);
267 }
268 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x14);
269 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x00);
270
271 jreg = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
272 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x20);
273
274 /* Set GR */
275 for (i = 0; i < 9; i++)
276 ast_set_index_reg(ast, AST_IO_GR_PORT, i, stdtable->gr[i]);
277}
278
279static void ast_set_crtc_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
280 struct ast_vbios_mode_info *vbios_mode)
281{
282 struct ast_private *ast = crtc->dev->dev_private;
283 u8 jreg05 = 0, jreg07 = 0, jreg09 = 0, jregAC = 0, jregAD = 0, jregAE = 0;
284 u16 temp, precache = 0;
285
286 if ((ast->chip == AST2500) &&
287 (vbios_mode->enh_table->flags & AST2500PreCatchCRT))
288 precache = 40;
289
290 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x00);
291
292 temp = (mode->crtc_htotal >> 3) - 5;
293 if (temp & 0x100)
294 jregAC |= 0x01; /* HT D[8] */
295 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x00, 0x00, temp);
296
297 temp = (mode->crtc_hdisplay >> 3) - 1;
298 if (temp & 0x100)
299 jregAC |= 0x04; /* HDE D[8] */
300 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x01, 0x00, temp);
301
302 temp = (mode->crtc_hblank_start >> 3) - 1;
303 if (temp & 0x100)
304 jregAC |= 0x10; /* HBS D[8] */
305 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x02, 0x00, temp);
306
307 temp = ((mode->crtc_hblank_end >> 3) - 1) & 0x7f;
308 if (temp & 0x20)
309 jreg05 |= 0x80; /* HBE D[5] */
310 if (temp & 0x40)
311 jregAD |= 0x01; /* HBE D[5] */
312 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x03, 0xE0, (temp & 0x1f));
313
314 temp = ((mode->crtc_hsync_start-precache) >> 3) - 1;
315 if (temp & 0x100)
316 jregAC |= 0x40; /* HRS D[5] */
317 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x04, 0x00, temp);
318
319 temp = (((mode->crtc_hsync_end-precache) >> 3) - 1) & 0x3f;
320 if (temp & 0x20)
321 jregAD |= 0x04; /* HRE D[5] */
322 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x05, 0x60, (u8)((temp & 0x1f) | jreg05));
323
324 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAC, 0x00, jregAC);
325 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAD, 0x00, jregAD);
326
327 /* vert timings */
328 temp = (mode->crtc_vtotal) - 2;
329 if (temp & 0x100)
330 jreg07 |= 0x01;
331 if (temp & 0x200)
332 jreg07 |= 0x20;
333 if (temp & 0x400)
334 jregAE |= 0x01;
335 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x06, 0x00, temp);
336
337 temp = (mode->crtc_vsync_start) - 1;
338 if (temp & 0x100)
339 jreg07 |= 0x04;
340 if (temp & 0x200)
341 jreg07 |= 0x80;
342 if (temp & 0x400)
343 jregAE |= 0x08;
344 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x10, 0x00, temp);
345
346 temp = (mode->crtc_vsync_end - 1) & 0x3f;
347 if (temp & 0x10)
348 jregAE |= 0x20;
349 if (temp & 0x20)
350 jregAE |= 0x40;
351 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x70, temp & 0xf);
352
353 temp = mode->crtc_vdisplay - 1;
354 if (temp & 0x100)
355 jreg07 |= 0x02;
356 if (temp & 0x200)
357 jreg07 |= 0x40;
358 if (temp & 0x400)
359 jregAE |= 0x02;
360 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x12, 0x00, temp);
361
362 temp = mode->crtc_vblank_start - 1;
363 if (temp & 0x100)
364 jreg07 |= 0x08;
365 if (temp & 0x200)
366 jreg09 |= 0x20;
367 if (temp & 0x400)
368 jregAE |= 0x04;
369 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x15, 0x00, temp);
370
371 temp = mode->crtc_vblank_end - 1;
372 if (temp & 0x100)
373 jregAE |= 0x10;
374 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x16, 0x00, temp);
375
376 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x07, 0x00, jreg07);
377 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x09, 0xdf, jreg09);
378 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAE, 0x00, (jregAE | 0x80));
379
380 if (precache)
381 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0x3f, 0x80);
382 else
383 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0x3f, 0x00);
384
385 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x80);
386}
387
388static void ast_set_offset_reg(struct drm_crtc *crtc)
389{
390 struct ast_private *ast = crtc->dev->dev_private;
391 const struct drm_framebuffer *fb = crtc->primary->fb;
392
393 u16 offset;
394
395 offset = fb->pitches[0] >> 3;
396 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x13, (offset & 0xff));
397 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xb0, (offset >> 8) & 0x3f);
398}
399
400static void ast_set_dclk_reg(struct drm_device *dev, struct drm_display_mode *mode,
401 struct ast_vbios_mode_info *vbios_mode)
402{
403 struct ast_private *ast = dev->dev_private;
404 const struct ast_vbios_dclk_info *clk_info;
405
406 if (ast->chip == AST2500)
407 clk_info = &dclk_table_ast2500[vbios_mode->enh_table->dclk_index];
408 else
409 clk_info = &dclk_table[vbios_mode->enh_table->dclk_index];
410
411 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xc0, 0x00, clk_info->param1);
412 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xc1, 0x00, clk_info->param2);
413 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xbb, 0x0f,
414 (clk_info->param3 & 0xc0) |
415 ((clk_info->param3 & 0x3) << 4));
416}
417
418static void ast_set_ext_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
419 struct ast_vbios_mode_info *vbios_mode)
420{
421 struct ast_private *ast = crtc->dev->dev_private;
422 const struct drm_framebuffer *fb = crtc->primary->fb;
423 u8 jregA0 = 0, jregA3 = 0, jregA8 = 0;
424
425 switch (fb->format->cpp[0] * 8) {
426 case 8:
427 jregA0 = 0x70;
428 jregA3 = 0x01;
429 jregA8 = 0x00;
430 break;
431 case 15:
432 case 16:
433 jregA0 = 0x70;
434 jregA3 = 0x04;
435 jregA8 = 0x02;
436 break;
437 case 32:
438 jregA0 = 0x70;
439 jregA3 = 0x08;
440 jregA8 = 0x02;
441 break;
442 }
443
444 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa0, 0x8f, jregA0);
445 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xf0, jregA3);
446 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa8, 0xfd, jregA8);
447
448 /* Set Threshold */
449 if (ast->chip == AST2300 || ast->chip == AST2400 ||
450 ast->chip == AST2500) {
451 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x78);
452 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x60);
453 } else if (ast->chip == AST2100 ||
454 ast->chip == AST1100 ||
455 ast->chip == AST2200 ||
456 ast->chip == AST2150) {
457 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x3f);
458 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x2f);
459 } else {
460 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x2f);
461 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x1f);
462 }
463}
464
465static void ast_set_sync_reg(struct drm_device *dev, struct drm_display_mode *mode,
466 struct ast_vbios_mode_info *vbios_mode)
467{
468 struct ast_private *ast = dev->dev_private;
469 u8 jreg;
470
471 jreg = ast_io_read8(ast, AST_IO_MISC_PORT_READ);
472 jreg &= ~0xC0;
473 if (vbios_mode->enh_table->flags & NVSync) jreg |= 0x80;
474 if (vbios_mode->enh_table->flags & NHSync) jreg |= 0x40;
475 ast_io_write8(ast, AST_IO_MISC_PORT_WRITE, jreg);
476}
477
478static bool ast_set_dac_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
479 struct ast_vbios_mode_info *vbios_mode)
480{
481 const struct drm_framebuffer *fb = crtc->primary->fb;
482
483 switch (fb->format->cpp[0] * 8) {
484 case 8:
485 break;
486 default:
487 return false;
488 }
489 return true;
490}
491
492static void ast_set_start_address_crt1(struct drm_crtc *crtc, unsigned offset)
493{
494 struct ast_private *ast = crtc->dev->dev_private;
495 u32 addr;
496
497 addr = offset >> 2;
498 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x0d, (u8)(addr & 0xff));
499 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x0c, (u8)((addr >> 8) & 0xff));
500 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xaf, (u8)((addr >> 16) & 0xff));
501
502}
503
504static void ast_crtc_dpms(struct drm_crtc *crtc, int mode)
505{
506 struct ast_private *ast = crtc->dev->dev_private;
507
508 if (ast->chip == AST1180)
509 return;
510
511 switch (mode) {
512 case DRM_MODE_DPMS_ON:
513 case DRM_MODE_DPMS_STANDBY:
514 case DRM_MODE_DPMS_SUSPEND:
515 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0);
516 if (ast->tx_chip_type == AST_TX_DP501)
517 ast_set_dp501_video_output(crtc->dev, 1);
518 ast_crtc_load_lut(crtc);
519 break;
520 case DRM_MODE_DPMS_OFF:
521 if (ast->tx_chip_type == AST_TX_DP501)
522 ast_set_dp501_video_output(crtc->dev, 0);
523 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0x20);
524 break;
525 }
526}
527
528static int ast_crtc_do_set_base(struct drm_crtc *crtc,
529 struct drm_framebuffer *fb,
530 int x, int y, int atomic)
531{
532 struct drm_gem_vram_object *gbo;
533 int ret;
534 s64 gpu_addr;
535
536 if (!atomic && fb) {
537 gbo = drm_gem_vram_of_gem(fb->obj[0]);
538 drm_gem_vram_unpin(gbo);
539 }
540
541 gbo = drm_gem_vram_of_gem(crtc->primary->fb->obj[0]);
542
543 ret = drm_gem_vram_pin(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM);
544 if (ret)
545 return ret;
546 gpu_addr = drm_gem_vram_offset(gbo);
547 if (gpu_addr < 0) {
548 ret = (int)gpu_addr;
549 goto err_drm_gem_vram_unpin;
550 }
551
552 ast_set_offset_reg(crtc);
553 ast_set_start_address_crt1(crtc, (u32)gpu_addr);
554
555 return 0;
556
557err_drm_gem_vram_unpin:
558 drm_gem_vram_unpin(gbo);
559 return ret;
560}
561
562static int ast_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
563 struct drm_framebuffer *old_fb)
564{
565 return ast_crtc_do_set_base(crtc, old_fb, x, y, 0);
566}
567
568static int ast_crtc_mode_set(struct drm_crtc *crtc,
569 struct drm_display_mode *mode,
570 struct drm_display_mode *adjusted_mode,
571 int x, int y,
572 struct drm_framebuffer *old_fb)
573{
574 struct drm_device *dev = crtc->dev;
575 struct ast_private *ast = crtc->dev->dev_private;
576 struct ast_vbios_mode_info vbios_mode;
577 bool ret;
578 if (ast->chip == AST1180) {
579 DRM_ERROR("AST 1180 modesetting not supported\n");
580 return -EINVAL;
581 }
582
583 ret = ast_get_vbios_mode_info(crtc, mode, adjusted_mode, &vbios_mode);
584 if (ret == false)
585 return -EINVAL;
586 ast_open_key(ast);
587
588 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa1, 0x06);
589
590 ast_set_std_reg(crtc, adjusted_mode, &vbios_mode);
591 ast_set_crtc_reg(crtc, adjusted_mode, &vbios_mode);
592 ast_set_offset_reg(crtc);
593 ast_set_dclk_reg(dev, adjusted_mode, &vbios_mode);
594 ast_set_ext_reg(crtc, adjusted_mode, &vbios_mode);
595 ast_set_sync_reg(dev, adjusted_mode, &vbios_mode);
596 ast_set_dac_reg(crtc, adjusted_mode, &vbios_mode);
597
598 ast_crtc_mode_set_base(crtc, x, y, old_fb);
599
600 return 0;
601}
602
603static void ast_crtc_disable(struct drm_crtc *crtc)
604{
605 DRM_DEBUG_KMS("\n");
606 ast_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
607 if (crtc->primary->fb) {
608 struct drm_framebuffer *fb = crtc->primary->fb;
609 struct drm_gem_vram_object *gbo =
610 drm_gem_vram_of_gem(fb->obj[0]);
611
612 drm_gem_vram_unpin(gbo);
613 }
614 crtc->primary->fb = NULL;
615}
616
617static void ast_crtc_prepare(struct drm_crtc *crtc)
618{
619
620}
621
622static void ast_crtc_commit(struct drm_crtc *crtc)
623{
624 struct ast_private *ast = crtc->dev->dev_private;
625 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0);
626 ast_crtc_load_lut(crtc);
627}
628
629
630static const struct drm_crtc_helper_funcs ast_crtc_helper_funcs = {
631 .dpms = ast_crtc_dpms,
632 .mode_set = ast_crtc_mode_set,
633 .mode_set_base = ast_crtc_mode_set_base,
634 .disable = ast_crtc_disable,
635 .prepare = ast_crtc_prepare,
636 .commit = ast_crtc_commit,
637
638};
639
640static void ast_crtc_reset(struct drm_crtc *crtc)
641{
642
643}
644
645static int ast_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
646 u16 *blue, uint32_t size,
647 struct drm_modeset_acquire_ctx *ctx)
648{
649 ast_crtc_load_lut(crtc);
650
651 return 0;
652}
653
654
655static void ast_crtc_destroy(struct drm_crtc *crtc)
656{
657 drm_crtc_cleanup(crtc);
658 kfree(crtc);
659}
660
661static const struct drm_crtc_funcs ast_crtc_funcs = {
662 .cursor_set = ast_cursor_set,
663 .cursor_move = ast_cursor_move,
664 .reset = ast_crtc_reset,
665 .set_config = drm_crtc_helper_set_config,
666 .gamma_set = ast_crtc_gamma_set,
667 .destroy = ast_crtc_destroy,
668};
669
670static int ast_crtc_init(struct drm_device *dev)
671{
672 struct ast_crtc *crtc;
673
674 crtc = kzalloc(sizeof(struct ast_crtc), GFP_KERNEL);
675 if (!crtc)
676 return -ENOMEM;
677
678 drm_crtc_init(dev, &crtc->base, &ast_crtc_funcs);
679 drm_mode_crtc_set_gamma_size(&crtc->base, 256);
680 drm_crtc_helper_add(&crtc->base, &ast_crtc_helper_funcs);
681 return 0;
682}
683
684static void ast_encoder_destroy(struct drm_encoder *encoder)
685{
686 drm_encoder_cleanup(encoder);
687 kfree(encoder);
688}
689
690
691static struct drm_encoder *ast_best_single_encoder(struct drm_connector *connector)
692{
693 int enc_id = connector->encoder_ids[0];
694 /* pick the encoder ids */
695 if (enc_id)
696 return drm_encoder_find(connector->dev, NULL, enc_id);
697 return NULL;
698}
699
700
701static const struct drm_encoder_funcs ast_enc_funcs = {
702 .destroy = ast_encoder_destroy,
703};
704
705static void ast_encoder_dpms(struct drm_encoder *encoder, int mode)
706{
707
708}
709
710static void ast_encoder_mode_set(struct drm_encoder *encoder,
711 struct drm_display_mode *mode,
712 struct drm_display_mode *adjusted_mode)
713{
714}
715
716static void ast_encoder_prepare(struct drm_encoder *encoder)
717{
718
719}
720
721static void ast_encoder_commit(struct drm_encoder *encoder)
722{
723
724}
725
726
727static const struct drm_encoder_helper_funcs ast_enc_helper_funcs = {
728 .dpms = ast_encoder_dpms,
729 .prepare = ast_encoder_prepare,
730 .commit = ast_encoder_commit,
731 .mode_set = ast_encoder_mode_set,
732};
733
734static int ast_encoder_init(struct drm_device *dev)
735{
736 struct ast_encoder *ast_encoder;
737
738 ast_encoder = kzalloc(sizeof(struct ast_encoder), GFP_KERNEL);
739 if (!ast_encoder)
740 return -ENOMEM;
741
742 drm_encoder_init(dev, &ast_encoder->base, &ast_enc_funcs,
743 DRM_MODE_ENCODER_DAC, NULL);
744 drm_encoder_helper_add(&ast_encoder->base, &ast_enc_helper_funcs);
745
746 ast_encoder->base.possible_crtcs = 1;
747 return 0;
748}
749
750static int ast_get_modes(struct drm_connector *connector)
751{
752 struct ast_connector *ast_connector = to_ast_connector(connector);
753 struct ast_private *ast = connector->dev->dev_private;
754 struct edid *edid;
755 int ret;
756 bool flags = false;
757 if (ast->tx_chip_type == AST_TX_DP501) {
758 ast->dp501_maxclk = 0xff;
759 edid = kmalloc(128, GFP_KERNEL);
760 if (!edid)
761 return -ENOMEM;
762
763 flags = ast_dp501_read_edid(connector->dev, (u8 *)edid);
764 if (flags)
765 ast->dp501_maxclk = ast_get_dp501_max_clk(connector->dev);
766 else
767 kfree(edid);
768 }
769 if (!flags)
770 edid = drm_get_edid(connector, &ast_connector->i2c->adapter);
771 if (edid) {
772 drm_connector_update_edid_property(&ast_connector->base, edid);
773 ret = drm_add_edid_modes(connector, edid);
774 kfree(edid);
775 return ret;
776 } else
777 drm_connector_update_edid_property(&ast_connector->base, NULL);
778 return 0;
779}
780
781static enum drm_mode_status ast_mode_valid(struct drm_connector *connector,
782 struct drm_display_mode *mode)
783{
784 struct ast_private *ast = connector->dev->dev_private;
785 int flags = MODE_NOMODE;
786 uint32_t jtemp;
787
788 if (ast->support_wide_screen) {
789 if ((mode->hdisplay == 1680) && (mode->vdisplay == 1050))
790 return MODE_OK;
791 if ((mode->hdisplay == 1280) && (mode->vdisplay == 800))
792 return MODE_OK;
793 if ((mode->hdisplay == 1440) && (mode->vdisplay == 900))
794 return MODE_OK;
795 if ((mode->hdisplay == 1360) && (mode->vdisplay == 768))
796 return MODE_OK;
797 if ((mode->hdisplay == 1600) && (mode->vdisplay == 900))
798 return MODE_OK;
799
800 if ((ast->chip == AST2100) || (ast->chip == AST2200) ||
801 (ast->chip == AST2300) || (ast->chip == AST2400) ||
802 (ast->chip == AST2500) || (ast->chip == AST1180)) {
803 if ((mode->hdisplay == 1920) && (mode->vdisplay == 1080))
804 return MODE_OK;
805
806 if ((mode->hdisplay == 1920) && (mode->vdisplay == 1200)) {
807 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff);
808 if (jtemp & 0x01)
809 return MODE_NOMODE;
810 else
811 return MODE_OK;
812 }
813 }
814 }
815 switch (mode->hdisplay) {
816 case 640:
817 if (mode->vdisplay == 480) flags = MODE_OK;
818 break;
819 case 800:
820 if (mode->vdisplay == 600) flags = MODE_OK;
821 break;
822 case 1024:
823 if (mode->vdisplay == 768) flags = MODE_OK;
824 break;
825 case 1280:
826 if (mode->vdisplay == 1024) flags = MODE_OK;
827 break;
828 case 1600:
829 if (mode->vdisplay == 1200) flags = MODE_OK;
830 break;
831 default:
832 return flags;
833 }
834
835 return flags;
836}
837
838static void ast_connector_destroy(struct drm_connector *connector)
839{
840 struct ast_connector *ast_connector = to_ast_connector(connector);
841 ast_i2c_destroy(ast_connector->i2c);
842 drm_connector_unregister(connector);
843 drm_connector_cleanup(connector);
844 kfree(connector);
845}
846
847static const struct drm_connector_helper_funcs ast_connector_helper_funcs = {
848 .mode_valid = ast_mode_valid,
849 .get_modes = ast_get_modes,
850 .best_encoder = ast_best_single_encoder,
851};
852
853static const struct drm_connector_funcs ast_connector_funcs = {
854 .dpms = drm_helper_connector_dpms,
855 .fill_modes = drm_helper_probe_single_connector_modes,
856 .destroy = ast_connector_destroy,
857};
858
859static int ast_connector_init(struct drm_device *dev)
860{
861 struct ast_connector *ast_connector;
862 struct drm_connector *connector;
863 struct drm_encoder *encoder;
864
865 ast_connector = kzalloc(sizeof(struct ast_connector), GFP_KERNEL);
866 if (!ast_connector)
867 return -ENOMEM;
868
869 connector = &ast_connector->base;
870 ast_connector->i2c = ast_i2c_create(dev);
871 if (!ast_connector->i2c)
872 DRM_ERROR("failed to add ddc bus for connector\n");
873
874 drm_connector_init_with_ddc(dev, connector,
875 &ast_connector_funcs,
876 DRM_MODE_CONNECTOR_VGA,
877 &ast_connector->i2c->adapter);
878
879 drm_connector_helper_add(connector, &ast_connector_helper_funcs);
880
881 connector->interlace_allowed = 0;
882 connector->doublescan_allowed = 0;
883
884 drm_connector_register(connector);
885
886 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
887
888 encoder = list_first_entry(&dev->mode_config.encoder_list, struct drm_encoder, head);
889 drm_connector_attach_encoder(connector, encoder);
890
891 return 0;
892}
893
894/* allocate cursor cache and pin at start of VRAM */
895static int ast_cursor_init(struct drm_device *dev)
896{
897 struct ast_private *ast = dev->dev_private;
898 int size;
899 int ret;
900 struct drm_gem_object *obj;
901 struct drm_gem_vram_object *gbo;
902 s64 gpu_addr;
903 void *base;
904
905 size = (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE) * AST_DEFAULT_HWC_NUM;
906
907 ret = ast_gem_create(dev, size, true, &obj);
908 if (ret)
909 return ret;
910 gbo = drm_gem_vram_of_gem(obj);
911 ret = drm_gem_vram_pin(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM);
912 if (ret)
913 goto fail;
914 gpu_addr = drm_gem_vram_offset(gbo);
915 if (gpu_addr < 0) {
916 drm_gem_vram_unpin(gbo);
917 ret = (int)gpu_addr;
918 goto fail;
919 }
920
921 /* kmap the object */
922 base = drm_gem_vram_kmap(gbo, true, NULL);
923 if (IS_ERR(base)) {
924 ret = PTR_ERR(base);
925 goto fail;
926 }
927
928 ast->cursor_cache = obj;
929 return 0;
930fail:
931 return ret;
932}
933
934static void ast_cursor_fini(struct drm_device *dev)
935{
936 struct ast_private *ast = dev->dev_private;
937 struct drm_gem_vram_object *gbo =
938 drm_gem_vram_of_gem(ast->cursor_cache);
939 drm_gem_vram_kunmap(gbo);
940 drm_gem_vram_unpin(gbo);
941 drm_gem_object_put_unlocked(ast->cursor_cache);
942}
943
944int ast_mode_init(struct drm_device *dev)
945{
946 ast_cursor_init(dev);
947 ast_crtc_init(dev);
948 ast_encoder_init(dev);
949 ast_connector_init(dev);
950 return 0;
951}
952
953void ast_mode_fini(struct drm_device *dev)
954{
955 ast_cursor_fini(dev);
956}
957
958static int get_clock(void *i2c_priv)
959{
960 struct ast_i2c_chan *i2c = i2c_priv;
961 struct ast_private *ast = i2c->dev->dev_private;
962 uint32_t val, val2, count, pass;
963
964 count = 0;
965 pass = 0;
966 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x10) >> 4) & 0x01;
967 do {
968 val2 = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x10) >> 4) & 0x01;
969 if (val == val2) {
970 pass++;
971 } else {
972 pass = 0;
973 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x10) >> 4) & 0x01;
974 }
975 } while ((pass < 5) && (count++ < 0x10000));
976
977 return val & 1 ? 1 : 0;
978}
979
980static int get_data(void *i2c_priv)
981{
982 struct ast_i2c_chan *i2c = i2c_priv;
983 struct ast_private *ast = i2c->dev->dev_private;
984 uint32_t val, val2, count, pass;
985
986 count = 0;
987 pass = 0;
988 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x20) >> 5) & 0x01;
989 do {
990 val2 = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x20) >> 5) & 0x01;
991 if (val == val2) {
992 pass++;
993 } else {
994 pass = 0;
995 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x20) >> 5) & 0x01;
996 }
997 } while ((pass < 5) && (count++ < 0x10000));
998
999 return val & 1 ? 1 : 0;
1000}
1001
1002static void set_clock(void *i2c_priv, int clock)
1003{
1004 struct ast_i2c_chan *i2c = i2c_priv;
1005 struct ast_private *ast = i2c->dev->dev_private;
1006 int i;
1007 u8 ujcrb7, jtemp;
1008
1009 for (i = 0; i < 0x10000; i++) {
1010 ujcrb7 = ((clock & 0x01) ? 0 : 1);
1011 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0xf4, ujcrb7);
1012 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x01);
1013 if (ujcrb7 == jtemp)
1014 break;
1015 }
1016}
1017
1018static void set_data(void *i2c_priv, int data)
1019{
1020 struct ast_i2c_chan *i2c = i2c_priv;
1021 struct ast_private *ast = i2c->dev->dev_private;
1022 int i;
1023 u8 ujcrb7, jtemp;
1024
1025 for (i = 0; i < 0x10000; i++) {
1026 ujcrb7 = ((data & 0x01) ? 0 : 1) << 2;
1027 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0xf1, ujcrb7);
1028 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x04);
1029 if (ujcrb7 == jtemp)
1030 break;
1031 }
1032}
1033
1034static struct ast_i2c_chan *ast_i2c_create(struct drm_device *dev)
1035{
1036 struct ast_i2c_chan *i2c;
1037 int ret;
1038
1039 i2c = kzalloc(sizeof(struct ast_i2c_chan), GFP_KERNEL);
1040 if (!i2c)
1041 return NULL;
1042
1043 i2c->adapter.owner = THIS_MODULE;
1044 i2c->adapter.class = I2C_CLASS_DDC;
1045 i2c->adapter.dev.parent = &dev->pdev->dev;
1046 i2c->dev = dev;
1047 i2c_set_adapdata(&i2c->adapter, i2c);
1048 snprintf(i2c->adapter.name, sizeof(i2c->adapter.name),
1049 "AST i2c bit bus");
1050 i2c->adapter.algo_data = &i2c->bit;
1051
1052 i2c->bit.udelay = 20;
1053 i2c->bit.timeout = 2;
1054 i2c->bit.data = i2c;
1055 i2c->bit.setsda = set_data;
1056 i2c->bit.setscl = set_clock;
1057 i2c->bit.getsda = get_data;
1058 i2c->bit.getscl = get_clock;
1059 ret = i2c_bit_add_bus(&i2c->adapter);
1060 if (ret) {
1061 DRM_ERROR("Failed to register bit i2c\n");
1062 goto out_free;
1063 }
1064
1065 return i2c;
1066out_free:
1067 kfree(i2c);
1068 return NULL;
1069}
1070
1071static void ast_i2c_destroy(struct ast_i2c_chan *i2c)
1072{
1073 if (!i2c)
1074 return;
1075 i2c_del_adapter(&i2c->adapter);
1076 kfree(i2c);
1077}
1078
1079static void ast_show_cursor(struct drm_crtc *crtc)
1080{
1081 struct ast_private *ast = crtc->dev->dev_private;
1082 u8 jreg;
1083
1084 jreg = 0x2;
1085 /* enable ARGB cursor */
1086 jreg |= 1;
1087 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, jreg);
1088}
1089
1090static void ast_hide_cursor(struct drm_crtc *crtc)
1091{
1092 struct ast_private *ast = crtc->dev->dev_private;
1093 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, 0x00);
1094}
1095
1096static u32 copy_cursor_image(u8 *src, u8 *dst, int width, int height)
1097{
1098 union {
1099 u32 ul;
1100 u8 b[4];
1101 } srcdata32[2], data32;
1102 union {
1103 u16 us;
1104 u8 b[2];
1105 } data16;
1106 u32 csum = 0;
1107 s32 alpha_dst_delta, last_alpha_dst_delta;
1108 u8 *srcxor, *dstxor;
1109 int i, j;
1110 u32 per_pixel_copy, two_pixel_copy;
1111
1112 alpha_dst_delta = AST_MAX_HWC_WIDTH << 1;
1113 last_alpha_dst_delta = alpha_dst_delta - (width << 1);
1114
1115 srcxor = src;
1116 dstxor = (u8 *)dst + last_alpha_dst_delta + (AST_MAX_HWC_HEIGHT - height) * alpha_dst_delta;
1117 per_pixel_copy = width & 1;
1118 two_pixel_copy = width >> 1;
1119
1120 for (j = 0; j < height; j++) {
1121 for (i = 0; i < two_pixel_copy; i++) {
1122 srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
1123 srcdata32[1].ul = *((u32 *)(srcxor + 4)) & 0xf0f0f0f0;
1124 data32.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
1125 data32.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
1126 data32.b[2] = srcdata32[1].b[1] | (srcdata32[1].b[0] >> 4);
1127 data32.b[3] = srcdata32[1].b[3] | (srcdata32[1].b[2] >> 4);
1128
1129 writel(data32.ul, dstxor);
1130 csum += data32.ul;
1131
1132 dstxor += 4;
1133 srcxor += 8;
1134
1135 }
1136
1137 for (i = 0; i < per_pixel_copy; i++) {
1138 srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
1139 data16.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
1140 data16.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
1141 writew(data16.us, dstxor);
1142 csum += (u32)data16.us;
1143
1144 dstxor += 2;
1145 srcxor += 4;
1146 }
1147 dstxor += last_alpha_dst_delta;
1148 }
1149 return csum;
1150}
1151
1152static int ast_cursor_set(struct drm_crtc *crtc,
1153 struct drm_file *file_priv,
1154 uint32_t handle,
1155 uint32_t width,
1156 uint32_t height)
1157{
1158 struct ast_private *ast = crtc->dev->dev_private;
1159 struct ast_crtc *ast_crtc = to_ast_crtc(crtc);
1160 struct drm_gem_object *obj;
1161 struct drm_gem_vram_object *gbo;
1162 s64 dst_gpu;
1163 u64 gpu_addr;
1164 u32 csum;
1165 int ret;
1166 u8 *src, *dst;
1167
1168 if (!handle) {
1169 ast_hide_cursor(crtc);
1170 return 0;
1171 }
1172
1173 if (width > AST_MAX_HWC_WIDTH || height > AST_MAX_HWC_HEIGHT)
1174 return -EINVAL;
1175
1176 obj = drm_gem_object_lookup(file_priv, handle);
1177 if (!obj) {
1178 DRM_ERROR("Cannot find cursor object %x for crtc\n", handle);
1179 return -ENOENT;
1180 }
1181 gbo = drm_gem_vram_of_gem(obj);
1182
1183 ret = drm_gem_vram_pin(gbo, 0);
1184 if (ret)
1185 goto err_drm_gem_object_put_unlocked;
1186 src = drm_gem_vram_kmap(gbo, true, NULL);
1187 if (IS_ERR(src)) {
1188 ret = PTR_ERR(src);
1189 goto err_drm_gem_vram_unpin;
1190 }
1191
1192 dst = drm_gem_vram_kmap(drm_gem_vram_of_gem(ast->cursor_cache),
1193 false, NULL);
1194 if (IS_ERR(dst)) {
1195 ret = PTR_ERR(dst);
1196 goto err_drm_gem_vram_kunmap;
1197 }
1198 dst_gpu = drm_gem_vram_offset(drm_gem_vram_of_gem(ast->cursor_cache));
1199 if (dst_gpu < 0) {
1200 ret = (int)dst_gpu;
1201 goto err_drm_gem_vram_kunmap;
1202 }
1203
1204 dst += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor;
1205
1206 /* do data transfer to cursor cache */
1207 csum = copy_cursor_image(src, dst, width, height);
1208
1209 /* write checksum + signature */
1210 {
1211 struct drm_gem_vram_object *dst_gbo =
1212 drm_gem_vram_of_gem(ast->cursor_cache);
1213 u8 *dst = drm_gem_vram_kmap(dst_gbo, false, NULL);
1214 dst += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor + AST_HWC_SIZE;
1215 writel(csum, dst);
1216 writel(width, dst + AST_HWC_SIGNATURE_SizeX);
1217 writel(height, dst + AST_HWC_SIGNATURE_SizeY);
1218 writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTX);
1219 writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTY);
1220
1221 /* set pattern offset */
1222 gpu_addr = (u64)dst_gpu;
1223 gpu_addr += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor;
1224 gpu_addr >>= 3;
1225 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc8, gpu_addr & 0xff);
1226 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc9, (gpu_addr >> 8) & 0xff);
1227 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xca, (gpu_addr >> 16) & 0xff);
1228 }
1229 ast_crtc->offset_x = AST_MAX_HWC_WIDTH - width;
1230 ast_crtc->offset_y = AST_MAX_HWC_WIDTH - height;
1231
1232 ast->next_cursor = (ast->next_cursor + 1) % AST_DEFAULT_HWC_NUM;
1233
1234 ast_show_cursor(crtc);
1235
1236 drm_gem_vram_kunmap(gbo);
1237 drm_gem_vram_unpin(gbo);
1238 drm_gem_object_put_unlocked(obj);
1239
1240 return 0;
1241
1242err_drm_gem_vram_kunmap:
1243 drm_gem_vram_kunmap(gbo);
1244err_drm_gem_vram_unpin:
1245 drm_gem_vram_unpin(gbo);
1246err_drm_gem_object_put_unlocked:
1247 drm_gem_object_put_unlocked(obj);
1248 return ret;
1249}
1250
1251static int ast_cursor_move(struct drm_crtc *crtc,
1252 int x, int y)
1253{
1254 struct ast_crtc *ast_crtc = to_ast_crtc(crtc);
1255 struct ast_private *ast = crtc->dev->dev_private;
1256 int x_offset, y_offset;
1257 u8 *sig;
1258
1259 sig = drm_gem_vram_kmap(drm_gem_vram_of_gem(ast->cursor_cache),
1260 false, NULL);
1261 sig += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor + AST_HWC_SIZE;
1262 writel(x, sig + AST_HWC_SIGNATURE_X);
1263 writel(y, sig + AST_HWC_SIGNATURE_Y);
1264
1265 x_offset = ast_crtc->offset_x;
1266 y_offset = ast_crtc->offset_y;
1267 if (x < 0) {
1268 x_offset = (-x) + ast_crtc->offset_x;
1269 x = 0;
1270 }
1271
1272 if (y < 0) {
1273 y_offset = (-y) + ast_crtc->offset_y;
1274 y = 0;
1275 }
1276 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc2, x_offset);
1277 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc3, y_offset);
1278 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc4, (x & 0xff));
1279 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc5, ((x >> 8) & 0x0f));
1280 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc6, (y & 0xff));
1281 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc7, ((y >> 8) & 0x07));
1282
1283 /* dummy write to fire HWC */
1284 ast_show_cursor(crtc);
1285
1286 return 0;
1287}
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#include <linux/export.h>
31#include <drm/drmP.h>
32#include <drm/drm_crtc.h>
33#include <drm/drm_crtc_helper.h>
34#include <drm/drm_plane_helper.h>
35#include "ast_drv.h"
36
37#include "ast_tables.h"
38
39static struct ast_i2c_chan *ast_i2c_create(struct drm_device *dev);
40static void ast_i2c_destroy(struct ast_i2c_chan *i2c);
41static int ast_cursor_set(struct drm_crtc *crtc,
42 struct drm_file *file_priv,
43 uint32_t handle,
44 uint32_t width,
45 uint32_t height);
46static int ast_cursor_move(struct drm_crtc *crtc,
47 int x, int y);
48
49static inline void ast_load_palette_index(struct ast_private *ast,
50 u8 index, u8 red, u8 green,
51 u8 blue)
52{
53 ast_io_write8(ast, AST_IO_DAC_INDEX_WRITE, index);
54 ast_io_read8(ast, AST_IO_SEQ_PORT);
55 ast_io_write8(ast, AST_IO_DAC_DATA, red);
56 ast_io_read8(ast, AST_IO_SEQ_PORT);
57 ast_io_write8(ast, AST_IO_DAC_DATA, green);
58 ast_io_read8(ast, AST_IO_SEQ_PORT);
59 ast_io_write8(ast, AST_IO_DAC_DATA, blue);
60 ast_io_read8(ast, AST_IO_SEQ_PORT);
61}
62
63static void ast_crtc_load_lut(struct drm_crtc *crtc)
64{
65 struct ast_private *ast = crtc->dev->dev_private;
66 u16 *r, *g, *b;
67 int i;
68
69 if (!crtc->enabled)
70 return;
71
72 r = crtc->gamma_store;
73 g = r + crtc->gamma_size;
74 b = g + crtc->gamma_size;
75
76 for (i = 0; i < 256; i++)
77 ast_load_palette_index(ast, i, *r++ >> 8, *g++ >> 8, *b++ >> 8);
78}
79
80static bool ast_get_vbios_mode_info(struct drm_crtc *crtc, struct drm_display_mode *mode,
81 struct drm_display_mode *adjusted_mode,
82 struct ast_vbios_mode_info *vbios_mode)
83{
84 struct ast_private *ast = crtc->dev->dev_private;
85 const struct drm_framebuffer *fb = crtc->primary->fb;
86 u32 refresh_rate_index = 0, mode_id, color_index, refresh_rate;
87 const struct ast_vbios_enhtable *best = NULL;
88 u32 hborder, vborder;
89 bool check_sync;
90
91 switch (fb->format->cpp[0] * 8) {
92 case 8:
93 vbios_mode->std_table = &vbios_stdtable[VGAModeIndex];
94 color_index = VGAModeIndex - 1;
95 break;
96 case 16:
97 vbios_mode->std_table = &vbios_stdtable[HiCModeIndex];
98 color_index = HiCModeIndex;
99 break;
100 case 24:
101 case 32:
102 vbios_mode->std_table = &vbios_stdtable[TrueCModeIndex];
103 color_index = TrueCModeIndex;
104 break;
105 default:
106 return false;
107 }
108
109 switch (crtc->mode.crtc_hdisplay) {
110 case 640:
111 vbios_mode->enh_table = &res_640x480[refresh_rate_index];
112 break;
113 case 800:
114 vbios_mode->enh_table = &res_800x600[refresh_rate_index];
115 break;
116 case 1024:
117 vbios_mode->enh_table = &res_1024x768[refresh_rate_index];
118 break;
119 case 1280:
120 if (crtc->mode.crtc_vdisplay == 800)
121 vbios_mode->enh_table = &res_1280x800[refresh_rate_index];
122 else
123 vbios_mode->enh_table = &res_1280x1024[refresh_rate_index];
124 break;
125 case 1360:
126 vbios_mode->enh_table = &res_1360x768[refresh_rate_index];
127 break;
128 case 1440:
129 vbios_mode->enh_table = &res_1440x900[refresh_rate_index];
130 break;
131 case 1600:
132 if (crtc->mode.crtc_vdisplay == 900)
133 vbios_mode->enh_table = &res_1600x900[refresh_rate_index];
134 else
135 vbios_mode->enh_table = &res_1600x1200[refresh_rate_index];
136 break;
137 case 1680:
138 vbios_mode->enh_table = &res_1680x1050[refresh_rate_index];
139 break;
140 case 1920:
141 if (crtc->mode.crtc_vdisplay == 1080)
142 vbios_mode->enh_table = &res_1920x1080[refresh_rate_index];
143 else
144 vbios_mode->enh_table = &res_1920x1200[refresh_rate_index];
145 break;
146 default:
147 return false;
148 }
149
150 refresh_rate = drm_mode_vrefresh(mode);
151 check_sync = vbios_mode->enh_table->flags & WideScreenMode;
152 do {
153 const struct ast_vbios_enhtable *loop = vbios_mode->enh_table;
154
155 while (loop->refresh_rate != 0xff) {
156 if ((check_sync) &&
157 (((mode->flags & DRM_MODE_FLAG_NVSYNC) &&
158 (loop->flags & PVSync)) ||
159 ((mode->flags & DRM_MODE_FLAG_PVSYNC) &&
160 (loop->flags & NVSync)) ||
161 ((mode->flags & DRM_MODE_FLAG_NHSYNC) &&
162 (loop->flags & PHSync)) ||
163 ((mode->flags & DRM_MODE_FLAG_PHSYNC) &&
164 (loop->flags & NHSync)))) {
165 loop++;
166 continue;
167 }
168 if (loop->refresh_rate <= refresh_rate
169 && (!best || loop->refresh_rate > best->refresh_rate))
170 best = loop;
171 loop++;
172 }
173 if (best || !check_sync)
174 break;
175 check_sync = 0;
176 } while (1);
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 refresh_rate_index = vbios_mode->enh_table->refresh_rate_index;
202 mode_id = vbios_mode->enh_table->mode_id;
203
204 if (ast->chip == AST1180) {
205 /* TODO 1180 */
206 } else {
207 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8c, (u8)((color_index & 0xf) << 4));
208 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8d, refresh_rate_index & 0xff);
209 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8e, mode_id & 0xff);
210
211 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0x00);
212 if (vbios_mode->enh_table->flags & NewModeInfo) {
213 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0xa8);
214 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x92,
215 fb->format->cpp[0] * 8);
216 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x93, adjusted_mode->clock / 1000);
217 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x94, adjusted_mode->crtc_hdisplay);
218 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x95, adjusted_mode->crtc_hdisplay >> 8);
219
220 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x96, adjusted_mode->crtc_vdisplay);
221 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x97, adjusted_mode->crtc_vdisplay >> 8);
222 }
223 }
224
225 return true;
226
227
228}
229static void ast_set_std_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
230 struct ast_vbios_mode_info *vbios_mode)
231{
232 struct ast_private *ast = crtc->dev->dev_private;
233 const struct ast_vbios_stdtable *stdtable;
234 u32 i;
235 u8 jreg;
236
237 stdtable = vbios_mode->std_table;
238
239 jreg = stdtable->misc;
240 ast_io_write8(ast, AST_IO_MISC_PORT_WRITE, jreg);
241
242 /* Set SEQ */
243 ast_set_index_reg(ast, AST_IO_SEQ_PORT, 0x00, 0x03);
244 for (i = 0; i < 4; i++) {
245 jreg = stdtable->seq[i];
246 if (!i)
247 jreg |= 0x20;
248 ast_set_index_reg(ast, AST_IO_SEQ_PORT, (i + 1) , jreg);
249 }
250
251 /* Set CRTC */
252 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x00);
253 for (i = 0; i < 25; i++)
254 ast_set_index_reg(ast, AST_IO_CRTC_PORT, i, stdtable->crtc[i]);
255
256 /* set AR */
257 jreg = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
258 for (i = 0; i < 20; i++) {
259 jreg = stdtable->ar[i];
260 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, (u8)i);
261 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, jreg);
262 }
263 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x14);
264 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x00);
265
266 jreg = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
267 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x20);
268
269 /* Set GR */
270 for (i = 0; i < 9; i++)
271 ast_set_index_reg(ast, AST_IO_GR_PORT, i, stdtable->gr[i]);
272}
273
274static void ast_set_crtc_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
275 struct ast_vbios_mode_info *vbios_mode)
276{
277 struct ast_private *ast = crtc->dev->dev_private;
278 u8 jreg05 = 0, jreg07 = 0, jreg09 = 0, jregAC = 0, jregAD = 0, jregAE = 0;
279 u16 temp, precache = 0;
280
281 if ((ast->chip == AST2500) &&
282 (vbios_mode->enh_table->flags & AST2500PreCatchCRT))
283 precache = 40;
284
285 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x00);
286
287 temp = (mode->crtc_htotal >> 3) - 5;
288 if (temp & 0x100)
289 jregAC |= 0x01; /* HT D[8] */
290 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x00, 0x00, temp);
291
292 temp = (mode->crtc_hdisplay >> 3) - 1;
293 if (temp & 0x100)
294 jregAC |= 0x04; /* HDE D[8] */
295 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x01, 0x00, temp);
296
297 temp = (mode->crtc_hblank_start >> 3) - 1;
298 if (temp & 0x100)
299 jregAC |= 0x10; /* HBS D[8] */
300 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x02, 0x00, temp);
301
302 temp = ((mode->crtc_hblank_end >> 3) - 1) & 0x7f;
303 if (temp & 0x20)
304 jreg05 |= 0x80; /* HBE D[5] */
305 if (temp & 0x40)
306 jregAD |= 0x01; /* HBE D[5] */
307 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x03, 0xE0, (temp & 0x1f));
308
309 temp = ((mode->crtc_hsync_start-precache) >> 3) - 1;
310 if (temp & 0x100)
311 jregAC |= 0x40; /* HRS D[5] */
312 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x04, 0x00, temp);
313
314 temp = (((mode->crtc_hsync_end-precache) >> 3) - 1) & 0x3f;
315 if (temp & 0x20)
316 jregAD |= 0x04; /* HRE D[5] */
317 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x05, 0x60, (u8)((temp & 0x1f) | jreg05));
318
319 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAC, 0x00, jregAC);
320 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAD, 0x00, jregAD);
321
322 /* vert timings */
323 temp = (mode->crtc_vtotal) - 2;
324 if (temp & 0x100)
325 jreg07 |= 0x01;
326 if (temp & 0x200)
327 jreg07 |= 0x20;
328 if (temp & 0x400)
329 jregAE |= 0x01;
330 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x06, 0x00, temp);
331
332 temp = (mode->crtc_vsync_start) - 1;
333 if (temp & 0x100)
334 jreg07 |= 0x04;
335 if (temp & 0x200)
336 jreg07 |= 0x80;
337 if (temp & 0x400)
338 jregAE |= 0x08;
339 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x10, 0x00, temp);
340
341 temp = (mode->crtc_vsync_end - 1) & 0x3f;
342 if (temp & 0x10)
343 jregAE |= 0x20;
344 if (temp & 0x20)
345 jregAE |= 0x40;
346 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x70, temp & 0xf);
347
348 temp = mode->crtc_vdisplay - 1;
349 if (temp & 0x100)
350 jreg07 |= 0x02;
351 if (temp & 0x200)
352 jreg07 |= 0x40;
353 if (temp & 0x400)
354 jregAE |= 0x02;
355 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x12, 0x00, temp);
356
357 temp = mode->crtc_vblank_start - 1;
358 if (temp & 0x100)
359 jreg07 |= 0x08;
360 if (temp & 0x200)
361 jreg09 |= 0x20;
362 if (temp & 0x400)
363 jregAE |= 0x04;
364 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x15, 0x00, temp);
365
366 temp = mode->crtc_vblank_end - 1;
367 if (temp & 0x100)
368 jregAE |= 0x10;
369 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x16, 0x00, temp);
370
371 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x07, 0x00, jreg07);
372 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x09, 0xdf, jreg09);
373 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAE, 0x00, (jregAE | 0x80));
374
375 if (precache)
376 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0x3f, 0x80);
377 else
378 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0x3f, 0x00);
379
380 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x80);
381}
382
383static void ast_set_offset_reg(struct drm_crtc *crtc)
384{
385 struct ast_private *ast = crtc->dev->dev_private;
386 const struct drm_framebuffer *fb = crtc->primary->fb;
387
388 u16 offset;
389
390 offset = fb->pitches[0] >> 3;
391 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x13, (offset & 0xff));
392 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xb0, (offset >> 8) & 0x3f);
393}
394
395static void ast_set_dclk_reg(struct drm_device *dev, struct drm_display_mode *mode,
396 struct ast_vbios_mode_info *vbios_mode)
397{
398 struct ast_private *ast = dev->dev_private;
399 const struct ast_vbios_dclk_info *clk_info;
400
401 if (ast->chip == AST2500)
402 clk_info = &dclk_table_ast2500[vbios_mode->enh_table->dclk_index];
403 else
404 clk_info = &dclk_table[vbios_mode->enh_table->dclk_index];
405
406 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xc0, 0x00, clk_info->param1);
407 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xc1, 0x00, clk_info->param2);
408 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xbb, 0x0f,
409 (clk_info->param3 & 0xc0) |
410 ((clk_info->param3 & 0x3) << 4));
411}
412
413static void ast_set_ext_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
414 struct ast_vbios_mode_info *vbios_mode)
415{
416 struct ast_private *ast = crtc->dev->dev_private;
417 const struct drm_framebuffer *fb = crtc->primary->fb;
418 u8 jregA0 = 0, jregA3 = 0, jregA8 = 0;
419
420 switch (fb->format->cpp[0] * 8) {
421 case 8:
422 jregA0 = 0x70;
423 jregA3 = 0x01;
424 jregA8 = 0x00;
425 break;
426 case 15:
427 case 16:
428 jregA0 = 0x70;
429 jregA3 = 0x04;
430 jregA8 = 0x02;
431 break;
432 case 32:
433 jregA0 = 0x70;
434 jregA3 = 0x08;
435 jregA8 = 0x02;
436 break;
437 }
438
439 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa0, 0x8f, jregA0);
440 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xf0, jregA3);
441 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa8, 0xfd, jregA8);
442
443 /* Set Threshold */
444 if (ast->chip == AST2300 || ast->chip == AST2400 ||
445 ast->chip == AST2500) {
446 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x78);
447 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x60);
448 } else if (ast->chip == AST2100 ||
449 ast->chip == AST1100 ||
450 ast->chip == AST2200 ||
451 ast->chip == AST2150) {
452 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x3f);
453 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x2f);
454 } else {
455 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x2f);
456 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x1f);
457 }
458}
459
460static void ast_set_sync_reg(struct drm_device *dev, struct drm_display_mode *mode,
461 struct ast_vbios_mode_info *vbios_mode)
462{
463 struct ast_private *ast = dev->dev_private;
464 u8 jreg;
465
466 jreg = ast_io_read8(ast, AST_IO_MISC_PORT_READ);
467 jreg &= ~0xC0;
468 if (vbios_mode->enh_table->flags & NVSync) jreg |= 0x80;
469 if (vbios_mode->enh_table->flags & NHSync) jreg |= 0x40;
470 ast_io_write8(ast, AST_IO_MISC_PORT_WRITE, jreg);
471}
472
473static bool ast_set_dac_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
474 struct ast_vbios_mode_info *vbios_mode)
475{
476 const struct drm_framebuffer *fb = crtc->primary->fb;
477
478 switch (fb->format->cpp[0] * 8) {
479 case 8:
480 break;
481 default:
482 return false;
483 }
484 return true;
485}
486
487static void ast_set_start_address_crt1(struct drm_crtc *crtc, unsigned offset)
488{
489 struct ast_private *ast = crtc->dev->dev_private;
490 u32 addr;
491
492 addr = offset >> 2;
493 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x0d, (u8)(addr & 0xff));
494 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x0c, (u8)((addr >> 8) & 0xff));
495 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xaf, (u8)((addr >> 16) & 0xff));
496
497}
498
499static void ast_crtc_dpms(struct drm_crtc *crtc, int mode)
500{
501 struct ast_private *ast = crtc->dev->dev_private;
502
503 if (ast->chip == AST1180)
504 return;
505
506 switch (mode) {
507 case DRM_MODE_DPMS_ON:
508 case DRM_MODE_DPMS_STANDBY:
509 case DRM_MODE_DPMS_SUSPEND:
510 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0);
511 if (ast->tx_chip_type == AST_TX_DP501)
512 ast_set_dp501_video_output(crtc->dev, 1);
513 ast_crtc_load_lut(crtc);
514 break;
515 case DRM_MODE_DPMS_OFF:
516 if (ast->tx_chip_type == AST_TX_DP501)
517 ast_set_dp501_video_output(crtc->dev, 0);
518 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0x20);
519 break;
520 }
521}
522
523/* ast is different - we will force move buffers out of VRAM */
524static int ast_crtc_do_set_base(struct drm_crtc *crtc,
525 struct drm_framebuffer *fb,
526 int x, int y, int atomic)
527{
528 struct ast_private *ast = crtc->dev->dev_private;
529 struct drm_gem_object *obj;
530 struct ast_framebuffer *ast_fb;
531 struct ast_bo *bo;
532 int ret;
533 u64 gpu_addr;
534
535 /* push the previous fb to system ram */
536 if (!atomic && fb) {
537 ast_fb = to_ast_framebuffer(fb);
538 obj = ast_fb->obj;
539 bo = gem_to_ast_bo(obj);
540 ret = ast_bo_reserve(bo, false);
541 if (ret)
542 return ret;
543 ast_bo_push_sysram(bo);
544 ast_bo_unreserve(bo);
545 }
546
547 ast_fb = to_ast_framebuffer(crtc->primary->fb);
548 obj = ast_fb->obj;
549 bo = gem_to_ast_bo(obj);
550
551 ret = ast_bo_reserve(bo, false);
552 if (ret)
553 return ret;
554
555 ret = ast_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
556 if (ret) {
557 ast_bo_unreserve(bo);
558 return ret;
559 }
560
561 if (&ast->fbdev->afb == ast_fb) {
562 /* if pushing console in kmap it */
563 ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
564 if (ret)
565 DRM_ERROR("failed to kmap fbcon\n");
566 else
567 ast_fbdev_set_base(ast, gpu_addr);
568 }
569 ast_bo_unreserve(bo);
570
571 ast_set_start_address_crt1(crtc, (u32)gpu_addr);
572
573 return 0;
574}
575
576static int ast_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
577 struct drm_framebuffer *old_fb)
578{
579 return ast_crtc_do_set_base(crtc, old_fb, x, y, 0);
580}
581
582static int ast_crtc_mode_set(struct drm_crtc *crtc,
583 struct drm_display_mode *mode,
584 struct drm_display_mode *adjusted_mode,
585 int x, int y,
586 struct drm_framebuffer *old_fb)
587{
588 struct drm_device *dev = crtc->dev;
589 struct ast_private *ast = crtc->dev->dev_private;
590 struct ast_vbios_mode_info vbios_mode;
591 bool ret;
592 if (ast->chip == AST1180) {
593 DRM_ERROR("AST 1180 modesetting not supported\n");
594 return -EINVAL;
595 }
596
597 ret = ast_get_vbios_mode_info(crtc, mode, adjusted_mode, &vbios_mode);
598 if (ret == false)
599 return -EINVAL;
600 ast_open_key(ast);
601
602 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa1, 0xff, 0x04);
603
604 ast_set_std_reg(crtc, adjusted_mode, &vbios_mode);
605 ast_set_crtc_reg(crtc, adjusted_mode, &vbios_mode);
606 ast_set_offset_reg(crtc);
607 ast_set_dclk_reg(dev, adjusted_mode, &vbios_mode);
608 ast_set_ext_reg(crtc, adjusted_mode, &vbios_mode);
609 ast_set_sync_reg(dev, adjusted_mode, &vbios_mode);
610 ast_set_dac_reg(crtc, adjusted_mode, &vbios_mode);
611
612 ast_crtc_mode_set_base(crtc, x, y, old_fb);
613
614 return 0;
615}
616
617static void ast_crtc_disable(struct drm_crtc *crtc)
618{
619 int ret;
620
621 DRM_DEBUG_KMS("\n");
622 ast_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
623 if (crtc->primary->fb) {
624 struct ast_framebuffer *ast_fb = to_ast_framebuffer(crtc->primary->fb);
625 struct drm_gem_object *obj = ast_fb->obj;
626 struct ast_bo *bo = gem_to_ast_bo(obj);
627
628 ret = ast_bo_reserve(bo, false);
629 if (ret)
630 return;
631
632 ast_bo_push_sysram(bo);
633 ast_bo_unreserve(bo);
634 }
635 crtc->primary->fb = NULL;
636}
637
638static void ast_crtc_prepare(struct drm_crtc *crtc)
639{
640
641}
642
643static void ast_crtc_commit(struct drm_crtc *crtc)
644{
645 struct ast_private *ast = crtc->dev->dev_private;
646 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0);
647 ast_crtc_load_lut(crtc);
648}
649
650
651static const struct drm_crtc_helper_funcs ast_crtc_helper_funcs = {
652 .dpms = ast_crtc_dpms,
653 .mode_set = ast_crtc_mode_set,
654 .mode_set_base = ast_crtc_mode_set_base,
655 .disable = ast_crtc_disable,
656 .prepare = ast_crtc_prepare,
657 .commit = ast_crtc_commit,
658
659};
660
661static void ast_crtc_reset(struct drm_crtc *crtc)
662{
663
664}
665
666static int ast_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
667 u16 *blue, uint32_t size,
668 struct drm_modeset_acquire_ctx *ctx)
669{
670 ast_crtc_load_lut(crtc);
671
672 return 0;
673}
674
675
676static void ast_crtc_destroy(struct drm_crtc *crtc)
677{
678 drm_crtc_cleanup(crtc);
679 kfree(crtc);
680}
681
682static const struct drm_crtc_funcs ast_crtc_funcs = {
683 .cursor_set = ast_cursor_set,
684 .cursor_move = ast_cursor_move,
685 .reset = ast_crtc_reset,
686 .set_config = drm_crtc_helper_set_config,
687 .gamma_set = ast_crtc_gamma_set,
688 .destroy = ast_crtc_destroy,
689};
690
691static int ast_crtc_init(struct drm_device *dev)
692{
693 struct ast_crtc *crtc;
694
695 crtc = kzalloc(sizeof(struct ast_crtc), GFP_KERNEL);
696 if (!crtc)
697 return -ENOMEM;
698
699 drm_crtc_init(dev, &crtc->base, &ast_crtc_funcs);
700 drm_mode_crtc_set_gamma_size(&crtc->base, 256);
701 drm_crtc_helper_add(&crtc->base, &ast_crtc_helper_funcs);
702 return 0;
703}
704
705static void ast_encoder_destroy(struct drm_encoder *encoder)
706{
707 drm_encoder_cleanup(encoder);
708 kfree(encoder);
709}
710
711
712static struct drm_encoder *ast_best_single_encoder(struct drm_connector *connector)
713{
714 int enc_id = connector->encoder_ids[0];
715 /* pick the encoder ids */
716 if (enc_id)
717 return drm_encoder_find(connector->dev, NULL, enc_id);
718 return NULL;
719}
720
721
722static const struct drm_encoder_funcs ast_enc_funcs = {
723 .destroy = ast_encoder_destroy,
724};
725
726static void ast_encoder_dpms(struct drm_encoder *encoder, int mode)
727{
728
729}
730
731static void ast_encoder_mode_set(struct drm_encoder *encoder,
732 struct drm_display_mode *mode,
733 struct drm_display_mode *adjusted_mode)
734{
735}
736
737static void ast_encoder_prepare(struct drm_encoder *encoder)
738{
739
740}
741
742static void ast_encoder_commit(struct drm_encoder *encoder)
743{
744
745}
746
747
748static const struct drm_encoder_helper_funcs ast_enc_helper_funcs = {
749 .dpms = ast_encoder_dpms,
750 .prepare = ast_encoder_prepare,
751 .commit = ast_encoder_commit,
752 .mode_set = ast_encoder_mode_set,
753};
754
755static int ast_encoder_init(struct drm_device *dev)
756{
757 struct ast_encoder *ast_encoder;
758
759 ast_encoder = kzalloc(sizeof(struct ast_encoder), GFP_KERNEL);
760 if (!ast_encoder)
761 return -ENOMEM;
762
763 drm_encoder_init(dev, &ast_encoder->base, &ast_enc_funcs,
764 DRM_MODE_ENCODER_DAC, NULL);
765 drm_encoder_helper_add(&ast_encoder->base, &ast_enc_helper_funcs);
766
767 ast_encoder->base.possible_crtcs = 1;
768 return 0;
769}
770
771static int ast_get_modes(struct drm_connector *connector)
772{
773 struct ast_connector *ast_connector = to_ast_connector(connector);
774 struct ast_private *ast = connector->dev->dev_private;
775 struct edid *edid;
776 int ret;
777 bool flags = false;
778 if (ast->tx_chip_type == AST_TX_DP501) {
779 ast->dp501_maxclk = 0xff;
780 edid = kmalloc(128, GFP_KERNEL);
781 if (!edid)
782 return -ENOMEM;
783
784 flags = ast_dp501_read_edid(connector->dev, (u8 *)edid);
785 if (flags)
786 ast->dp501_maxclk = ast_get_dp501_max_clk(connector->dev);
787 else
788 kfree(edid);
789 }
790 if (!flags)
791 edid = drm_get_edid(connector, &ast_connector->i2c->adapter);
792 if (edid) {
793 drm_mode_connector_update_edid_property(&ast_connector->base, edid);
794 ret = drm_add_edid_modes(connector, edid);
795 kfree(edid);
796 return ret;
797 } else
798 drm_mode_connector_update_edid_property(&ast_connector->base, NULL);
799 return 0;
800}
801
802static int ast_mode_valid(struct drm_connector *connector,
803 struct drm_display_mode *mode)
804{
805 struct ast_private *ast = connector->dev->dev_private;
806 int flags = MODE_NOMODE;
807 uint32_t jtemp;
808
809 if (ast->support_wide_screen) {
810 if ((mode->hdisplay == 1680) && (mode->vdisplay == 1050))
811 return MODE_OK;
812 if ((mode->hdisplay == 1280) && (mode->vdisplay == 800))
813 return MODE_OK;
814 if ((mode->hdisplay == 1440) && (mode->vdisplay == 900))
815 return MODE_OK;
816 if ((mode->hdisplay == 1360) && (mode->vdisplay == 768))
817 return MODE_OK;
818 if ((mode->hdisplay == 1600) && (mode->vdisplay == 900))
819 return MODE_OK;
820
821 if ((ast->chip == AST2100) || (ast->chip == AST2200) ||
822 (ast->chip == AST2300) || (ast->chip == AST2400) ||
823 (ast->chip == AST2500) || (ast->chip == AST1180)) {
824 if ((mode->hdisplay == 1920) && (mode->vdisplay == 1080))
825 return MODE_OK;
826
827 if ((mode->hdisplay == 1920) && (mode->vdisplay == 1200)) {
828 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff);
829 if (jtemp & 0x01)
830 return MODE_NOMODE;
831 else
832 return MODE_OK;
833 }
834 }
835 }
836 switch (mode->hdisplay) {
837 case 640:
838 if (mode->vdisplay == 480) flags = MODE_OK;
839 break;
840 case 800:
841 if (mode->vdisplay == 600) flags = MODE_OK;
842 break;
843 case 1024:
844 if (mode->vdisplay == 768) flags = MODE_OK;
845 break;
846 case 1280:
847 if (mode->vdisplay == 1024) flags = MODE_OK;
848 break;
849 case 1600:
850 if (mode->vdisplay == 1200) flags = MODE_OK;
851 break;
852 default:
853 return flags;
854 }
855
856 return flags;
857}
858
859static void ast_connector_destroy(struct drm_connector *connector)
860{
861 struct ast_connector *ast_connector = to_ast_connector(connector);
862 ast_i2c_destroy(ast_connector->i2c);
863 drm_connector_unregister(connector);
864 drm_connector_cleanup(connector);
865 kfree(connector);
866}
867
868static const struct drm_connector_helper_funcs ast_connector_helper_funcs = {
869 .mode_valid = ast_mode_valid,
870 .get_modes = ast_get_modes,
871 .best_encoder = ast_best_single_encoder,
872};
873
874static const struct drm_connector_funcs ast_connector_funcs = {
875 .dpms = drm_helper_connector_dpms,
876 .fill_modes = drm_helper_probe_single_connector_modes,
877 .destroy = ast_connector_destroy,
878};
879
880static int ast_connector_init(struct drm_device *dev)
881{
882 struct ast_connector *ast_connector;
883 struct drm_connector *connector;
884 struct drm_encoder *encoder;
885
886 ast_connector = kzalloc(sizeof(struct ast_connector), GFP_KERNEL);
887 if (!ast_connector)
888 return -ENOMEM;
889
890 connector = &ast_connector->base;
891 drm_connector_init(dev, connector, &ast_connector_funcs, DRM_MODE_CONNECTOR_VGA);
892
893 drm_connector_helper_add(connector, &ast_connector_helper_funcs);
894
895 connector->interlace_allowed = 0;
896 connector->doublescan_allowed = 0;
897
898 drm_connector_register(connector);
899
900 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
901
902 encoder = list_first_entry(&dev->mode_config.encoder_list, struct drm_encoder, head);
903 drm_mode_connector_attach_encoder(connector, encoder);
904
905 ast_connector->i2c = ast_i2c_create(dev);
906 if (!ast_connector->i2c)
907 DRM_ERROR("failed to add ddc bus for connector\n");
908
909 return 0;
910}
911
912/* allocate cursor cache and pin at start of VRAM */
913static int ast_cursor_init(struct drm_device *dev)
914{
915 struct ast_private *ast = dev->dev_private;
916 int size;
917 int ret;
918 struct drm_gem_object *obj;
919 struct ast_bo *bo;
920 uint64_t gpu_addr;
921
922 size = (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE) * AST_DEFAULT_HWC_NUM;
923
924 ret = ast_gem_create(dev, size, true, &obj);
925 if (ret)
926 return ret;
927 bo = gem_to_ast_bo(obj);
928 ret = ast_bo_reserve(bo, false);
929 if (unlikely(ret != 0))
930 goto fail;
931
932 ret = ast_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
933 ast_bo_unreserve(bo);
934 if (ret)
935 goto fail;
936
937 /* kmap the object */
938 ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &ast->cache_kmap);
939 if (ret)
940 goto fail;
941
942 ast->cursor_cache = obj;
943 ast->cursor_cache_gpu_addr = gpu_addr;
944 DRM_DEBUG_KMS("pinned cursor cache at %llx\n", ast->cursor_cache_gpu_addr);
945 return 0;
946fail:
947 return ret;
948}
949
950static void ast_cursor_fini(struct drm_device *dev)
951{
952 struct ast_private *ast = dev->dev_private;
953 ttm_bo_kunmap(&ast->cache_kmap);
954 drm_gem_object_put_unlocked(ast->cursor_cache);
955}
956
957int ast_mode_init(struct drm_device *dev)
958{
959 ast_cursor_init(dev);
960 ast_crtc_init(dev);
961 ast_encoder_init(dev);
962 ast_connector_init(dev);
963 return 0;
964}
965
966void ast_mode_fini(struct drm_device *dev)
967{
968 ast_cursor_fini(dev);
969}
970
971static int get_clock(void *i2c_priv)
972{
973 struct ast_i2c_chan *i2c = i2c_priv;
974 struct ast_private *ast = i2c->dev->dev_private;
975 uint32_t val;
976
977 val = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x10) >> 4;
978 return val & 1 ? 1 : 0;
979}
980
981static int get_data(void *i2c_priv)
982{
983 struct ast_i2c_chan *i2c = i2c_priv;
984 struct ast_private *ast = i2c->dev->dev_private;
985 uint32_t val;
986
987 val = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x20) >> 5;
988 return val & 1 ? 1 : 0;
989}
990
991static void set_clock(void *i2c_priv, int clock)
992{
993 struct ast_i2c_chan *i2c = i2c_priv;
994 struct ast_private *ast = i2c->dev->dev_private;
995 int i;
996 u8 ujcrb7, jtemp;
997
998 for (i = 0; i < 0x10000; i++) {
999 ujcrb7 = ((clock & 0x01) ? 0 : 1);
1000 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0xfe, ujcrb7);
1001 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x01);
1002 if (ujcrb7 == jtemp)
1003 break;
1004 }
1005}
1006
1007static void set_data(void *i2c_priv, int data)
1008{
1009 struct ast_i2c_chan *i2c = i2c_priv;
1010 struct ast_private *ast = i2c->dev->dev_private;
1011 int i;
1012 u8 ujcrb7, jtemp;
1013
1014 for (i = 0; i < 0x10000; i++) {
1015 ujcrb7 = ((data & 0x01) ? 0 : 1) << 2;
1016 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0xfb, ujcrb7);
1017 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x04);
1018 if (ujcrb7 == jtemp)
1019 break;
1020 }
1021}
1022
1023static struct ast_i2c_chan *ast_i2c_create(struct drm_device *dev)
1024{
1025 struct ast_i2c_chan *i2c;
1026 int ret;
1027
1028 i2c = kzalloc(sizeof(struct ast_i2c_chan), GFP_KERNEL);
1029 if (!i2c)
1030 return NULL;
1031
1032 i2c->adapter.owner = THIS_MODULE;
1033 i2c->adapter.class = I2C_CLASS_DDC;
1034 i2c->adapter.dev.parent = &dev->pdev->dev;
1035 i2c->dev = dev;
1036 i2c_set_adapdata(&i2c->adapter, i2c);
1037 snprintf(i2c->adapter.name, sizeof(i2c->adapter.name),
1038 "AST i2c bit bus");
1039 i2c->adapter.algo_data = &i2c->bit;
1040
1041 i2c->bit.udelay = 20;
1042 i2c->bit.timeout = 2;
1043 i2c->bit.data = i2c;
1044 i2c->bit.setsda = set_data;
1045 i2c->bit.setscl = set_clock;
1046 i2c->bit.getsda = get_data;
1047 i2c->bit.getscl = get_clock;
1048 ret = i2c_bit_add_bus(&i2c->adapter);
1049 if (ret) {
1050 DRM_ERROR("Failed to register bit i2c\n");
1051 goto out_free;
1052 }
1053
1054 return i2c;
1055out_free:
1056 kfree(i2c);
1057 return NULL;
1058}
1059
1060static void ast_i2c_destroy(struct ast_i2c_chan *i2c)
1061{
1062 if (!i2c)
1063 return;
1064 i2c_del_adapter(&i2c->adapter);
1065 kfree(i2c);
1066}
1067
1068static void ast_show_cursor(struct drm_crtc *crtc)
1069{
1070 struct ast_private *ast = crtc->dev->dev_private;
1071 u8 jreg;
1072
1073 jreg = 0x2;
1074 /* enable ARGB cursor */
1075 jreg |= 1;
1076 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, jreg);
1077}
1078
1079static void ast_hide_cursor(struct drm_crtc *crtc)
1080{
1081 struct ast_private *ast = crtc->dev->dev_private;
1082 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, 0x00);
1083}
1084
1085static u32 copy_cursor_image(u8 *src, u8 *dst, int width, int height)
1086{
1087 union {
1088 u32 ul;
1089 u8 b[4];
1090 } srcdata32[2], data32;
1091 union {
1092 u16 us;
1093 u8 b[2];
1094 } data16;
1095 u32 csum = 0;
1096 s32 alpha_dst_delta, last_alpha_dst_delta;
1097 u8 *srcxor, *dstxor;
1098 int i, j;
1099 u32 per_pixel_copy, two_pixel_copy;
1100
1101 alpha_dst_delta = AST_MAX_HWC_WIDTH << 1;
1102 last_alpha_dst_delta = alpha_dst_delta - (width << 1);
1103
1104 srcxor = src;
1105 dstxor = (u8 *)dst + last_alpha_dst_delta + (AST_MAX_HWC_HEIGHT - height) * alpha_dst_delta;
1106 per_pixel_copy = width & 1;
1107 two_pixel_copy = width >> 1;
1108
1109 for (j = 0; j < height; j++) {
1110 for (i = 0; i < two_pixel_copy; i++) {
1111 srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
1112 srcdata32[1].ul = *((u32 *)(srcxor + 4)) & 0xf0f0f0f0;
1113 data32.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
1114 data32.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
1115 data32.b[2] = srcdata32[1].b[1] | (srcdata32[1].b[0] >> 4);
1116 data32.b[3] = srcdata32[1].b[3] | (srcdata32[1].b[2] >> 4);
1117
1118 writel(data32.ul, dstxor);
1119 csum += data32.ul;
1120
1121 dstxor += 4;
1122 srcxor += 8;
1123
1124 }
1125
1126 for (i = 0; i < per_pixel_copy; i++) {
1127 srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
1128 data16.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
1129 data16.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
1130 writew(data16.us, dstxor);
1131 csum += (u32)data16.us;
1132
1133 dstxor += 2;
1134 srcxor += 4;
1135 }
1136 dstxor += last_alpha_dst_delta;
1137 }
1138 return csum;
1139}
1140
1141static int ast_cursor_set(struct drm_crtc *crtc,
1142 struct drm_file *file_priv,
1143 uint32_t handle,
1144 uint32_t width,
1145 uint32_t height)
1146{
1147 struct ast_private *ast = crtc->dev->dev_private;
1148 struct ast_crtc *ast_crtc = to_ast_crtc(crtc);
1149 struct drm_gem_object *obj;
1150 struct ast_bo *bo;
1151 uint64_t gpu_addr;
1152 u32 csum;
1153 int ret;
1154 struct ttm_bo_kmap_obj uobj_map;
1155 u8 *src, *dst;
1156 bool src_isiomem, dst_isiomem;
1157 if (!handle) {
1158 ast_hide_cursor(crtc);
1159 return 0;
1160 }
1161
1162 if (width > AST_MAX_HWC_WIDTH || height > AST_MAX_HWC_HEIGHT)
1163 return -EINVAL;
1164
1165 obj = drm_gem_object_lookup(file_priv, handle);
1166 if (!obj) {
1167 DRM_ERROR("Cannot find cursor object %x for crtc\n", handle);
1168 return -ENOENT;
1169 }
1170 bo = gem_to_ast_bo(obj);
1171
1172 ret = ast_bo_reserve(bo, false);
1173 if (ret)
1174 goto fail;
1175
1176 ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &uobj_map);
1177
1178 src = ttm_kmap_obj_virtual(&uobj_map, &src_isiomem);
1179 dst = ttm_kmap_obj_virtual(&ast->cache_kmap, &dst_isiomem);
1180
1181 if (src_isiomem == true)
1182 DRM_ERROR("src cursor bo should be in main memory\n");
1183 if (dst_isiomem == false)
1184 DRM_ERROR("dst bo should be in VRAM\n");
1185
1186 dst += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor;
1187
1188 /* do data transfer to cursor cache */
1189 csum = copy_cursor_image(src, dst, width, height);
1190
1191 /* write checksum + signature */
1192 ttm_bo_kunmap(&uobj_map);
1193 ast_bo_unreserve(bo);
1194 {
1195 u8 *dst = (u8 *)ast->cache_kmap.virtual + (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor + AST_HWC_SIZE;
1196 writel(csum, dst);
1197 writel(width, dst + AST_HWC_SIGNATURE_SizeX);
1198 writel(height, dst + AST_HWC_SIGNATURE_SizeY);
1199 writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTX);
1200 writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTY);
1201
1202 /* set pattern offset */
1203 gpu_addr = ast->cursor_cache_gpu_addr;
1204 gpu_addr += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor;
1205 gpu_addr >>= 3;
1206 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc8, gpu_addr & 0xff);
1207 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc9, (gpu_addr >> 8) & 0xff);
1208 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xca, (gpu_addr >> 16) & 0xff);
1209 }
1210 ast_crtc->cursor_width = width;
1211 ast_crtc->cursor_height = height;
1212 ast_crtc->offset_x = AST_MAX_HWC_WIDTH - width;
1213 ast_crtc->offset_y = AST_MAX_HWC_WIDTH - height;
1214
1215 ast->next_cursor = (ast->next_cursor + 1) % AST_DEFAULT_HWC_NUM;
1216
1217 ast_show_cursor(crtc);
1218
1219 drm_gem_object_put_unlocked(obj);
1220 return 0;
1221fail:
1222 drm_gem_object_put_unlocked(obj);
1223 return ret;
1224}
1225
1226static int ast_cursor_move(struct drm_crtc *crtc,
1227 int x, int y)
1228{
1229 struct ast_crtc *ast_crtc = to_ast_crtc(crtc);
1230 struct ast_private *ast = crtc->dev->dev_private;
1231 int x_offset, y_offset;
1232 u8 *sig;
1233
1234 sig = (u8 *)ast->cache_kmap.virtual + (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor + AST_HWC_SIZE;
1235 writel(x, sig + AST_HWC_SIGNATURE_X);
1236 writel(y, sig + AST_HWC_SIGNATURE_Y);
1237
1238 x_offset = ast_crtc->offset_x;
1239 y_offset = ast_crtc->offset_y;
1240 if (x < 0) {
1241 x_offset = (-x) + ast_crtc->offset_x;
1242 x = 0;
1243 }
1244
1245 if (y < 0) {
1246 y_offset = (-y) + ast_crtc->offset_y;
1247 y = 0;
1248 }
1249 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc2, x_offset);
1250 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc3, y_offset);
1251 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc4, (x & 0xff));
1252 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc5, ((x >> 8) & 0x0f));
1253 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc6, (y & 0xff));
1254 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc7, ((y >> 8) & 0x07));
1255
1256 /* dummy write to fire HWC */
1257 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xCB, 0xFF, 0x00);
1258
1259 return 0;
1260}