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PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / gpu / drm / ast / ast_mode.c
blobcca063b110831aa4d4fc2f46afd6e9cc35ac30b9
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 "ast_drv.h"
35
36 #include "ast_tables.h"
37
38 static struct ast_i2c_chan *ast_i2c_create(struct drm_device *dev);
39 static void ast_i2c_destroy(struct ast_i2c_chan *i2c);
40 static int ast_cursor_set(struct drm_crtc *crtc,
41 struct drm_file *file_priv,
42 uint32_t handle,
43 uint32_t width,
44 uint32_t height);
45 static int ast_cursor_move(struct drm_crtc *crtc,
46 int x, int y);
47
48 static inline void ast_load_palette_index(struct ast_private *ast,
49 u8 index, u8 red, u8 green,
50 u8 blue)
51 {
52 ast_io_write8(ast, AST_IO_DAC_INDEX_WRITE, index);
53 ast_io_read8(ast, AST_IO_SEQ_PORT);
54 ast_io_write8(ast, AST_IO_DAC_DATA, red);
55 ast_io_read8(ast, AST_IO_SEQ_PORT);
56 ast_io_write8(ast, AST_IO_DAC_DATA, green);
57 ast_io_read8(ast, AST_IO_SEQ_PORT);
58 ast_io_write8(ast, AST_IO_DAC_DATA, blue);
59 ast_io_read8(ast, AST_IO_SEQ_PORT);
60 }
61
62 static void ast_crtc_load_lut(struct drm_crtc *crtc)
63 {
64 struct ast_private *ast = crtc->dev->dev_private;
65 struct ast_crtc *ast_crtc = to_ast_crtc(crtc);
66 int i;
67
68 if (!crtc->enabled)
69 return;
70
71 for (i = 0; i < 256; i++)
72 ast_load_palette_index(ast, i, ast_crtc->lut_r[i],
73 ast_crtc->lut_g[i], ast_crtc->lut_b[i]);
74 }
75
76 static bool ast_get_vbios_mode_info(struct drm_crtc *crtc, struct drm_display_mode *mode,
77 struct drm_display_mode *adjusted_mode,
78 struct ast_vbios_mode_info *vbios_mode)
79 {
80 struct ast_private *ast = crtc->dev->dev_private;
81 u32 refresh_rate_index = 0, mode_id, color_index, refresh_rate;
82 u32 hborder, vborder;
83
84 switch (crtc->fb->bits_per_pixel) {
85 case 8:
86 vbios_mode->std_table = &vbios_stdtable[VGAModeIndex];
87 color_index = VGAModeIndex - 1;
88 break;
89 case 16:
90 vbios_mode->std_table = &vbios_stdtable[HiCModeIndex];
91 color_index = HiCModeIndex;
92 break;
93 case 24:
94 case 32:
95 vbios_mode->std_table = &vbios_stdtable[TrueCModeIndex];
96 color_index = TrueCModeIndex;
97 break;
98 default:
99 return false;
100 }
101
102 switch (crtc->mode.crtc_hdisplay) {
103 case 640:
104 vbios_mode->enh_table = &res_640x480[refresh_rate_index];
105 break;
106 case 800:
107 vbios_mode->enh_table = &res_800x600[refresh_rate_index];
108 break;
109 case 1024:
110 vbios_mode->enh_table = &res_1024x768[refresh_rate_index];
111 break;
112 case 1280:
113 if (crtc->mode.crtc_vdisplay == 800)
114 vbios_mode->enh_table = &res_1280x800[refresh_rate_index];
115 else
116 vbios_mode->enh_table = &res_1280x1024[refresh_rate_index];
117 break;
118 case 1440:
119 vbios_mode->enh_table = &res_1440x900[refresh_rate_index];
120 break;
121 case 1600:
122 vbios_mode->enh_table = &res_1600x1200[refresh_rate_index];
123 break;
124 case 1680:
125 vbios_mode->enh_table = &res_1680x1050[refresh_rate_index];
126 break;
127 case 1920:
128 if (crtc->mode.crtc_vdisplay == 1080)
129 vbios_mode->enh_table = &res_1920x1080[refresh_rate_index];
130 else
131 vbios_mode->enh_table = &res_1920x1200[refresh_rate_index];
132 break;
133 default:
134 return false;
135 }
136
137 refresh_rate = drm_mode_vrefresh(mode);
138 while (vbios_mode->enh_table->refresh_rate < refresh_rate) {
139 vbios_mode->enh_table++;
140 if ((vbios_mode->enh_table->refresh_rate > refresh_rate) ||
141 (vbios_mode->enh_table->refresh_rate == 0xff)) {
142 vbios_mode->enh_table--;
143 break;
144 }
145 }
146
147 hborder = (vbios_mode->enh_table->flags & HBorder) ? 8 : 0;
148 vborder = (vbios_mode->enh_table->flags & VBorder) ? 8 : 0;
149
150 adjusted_mode->crtc_htotal = vbios_mode->enh_table->ht;
151 adjusted_mode->crtc_hblank_start = vbios_mode->enh_table->hde + hborder;
152 adjusted_mode->crtc_hblank_end = vbios_mode->enh_table->ht - hborder;
153 adjusted_mode->crtc_hsync_start = vbios_mode->enh_table->hde + hborder +
154 vbios_mode->enh_table->hfp;
155 adjusted_mode->crtc_hsync_end = (vbios_mode->enh_table->hde + hborder +
156 vbios_mode->enh_table->hfp +
157 vbios_mode->enh_table->hsync);
158
159 adjusted_mode->crtc_vtotal = vbios_mode->enh_table->vt;
160 adjusted_mode->crtc_vblank_start = vbios_mode->enh_table->vde + vborder;
161 adjusted_mode->crtc_vblank_end = vbios_mode->enh_table->vt - vborder;
162 adjusted_mode->crtc_vsync_start = vbios_mode->enh_table->vde + vborder +
163 vbios_mode->enh_table->vfp;
164 adjusted_mode->crtc_vsync_end = (vbios_mode->enh_table->vde + vborder +
165 vbios_mode->enh_table->vfp +
166 vbios_mode->enh_table->vsync);
167
168 refresh_rate_index = vbios_mode->enh_table->refresh_rate_index;
169 mode_id = vbios_mode->enh_table->mode_id;
170
171 if (ast->chip == AST1180) {
172 /* TODO 1180 */
173 } else {
174 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8c, (u8)((color_index & 0xf) << 4));
175 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8d, refresh_rate_index & 0xff);
176 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8e, mode_id & 0xff);
177
178 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0xa8);
179 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x92, crtc->fb->bits_per_pixel);
180 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x93, adjusted_mode->clock / 1000);
181 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x94, adjusted_mode->crtc_hdisplay);
182 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x95, adjusted_mode->crtc_hdisplay >> 8);
183
184 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x96, adjusted_mode->crtc_vdisplay);
185 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x97, adjusted_mode->crtc_vdisplay >> 8);
186 }
187
188 return true;
189
190
191 }
192 static void ast_set_std_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
193 struct ast_vbios_mode_info *vbios_mode)
194 {
195 struct ast_private *ast = crtc->dev->dev_private;
196 struct ast_vbios_stdtable *stdtable;
197 u32 i;
198 u8 jreg;
199
200 stdtable = vbios_mode->std_table;
201
202 jreg = stdtable->misc;
203 ast_io_write8(ast, AST_IO_MISC_PORT_WRITE, jreg);
204
205 /* Set SEQ */
206 ast_set_index_reg(ast, AST_IO_SEQ_PORT, 0x00, 0x03);
207 for (i = 0; i < 4; i++) {
208 jreg = stdtable->seq[i];
209 if (!i)
210 jreg |= 0x20;
211 ast_set_index_reg(ast, AST_IO_SEQ_PORT, (i + 1) , jreg);
212 }
213
214 /* Set CRTC */
215 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x00);
216 for (i = 0; i < 25; i++)
217 ast_set_index_reg(ast, AST_IO_CRTC_PORT, i, stdtable->crtc[i]);
218
219 /* set AR */
220 jreg = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
221 for (i = 0; i < 20; i++) {
222 jreg = stdtable->ar[i];
223 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, (u8)i);
224 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, jreg);
225 }
226 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x14);
227 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x00);
228
229 jreg = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
230 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x20);
231
232 /* Set GR */
233 for (i = 0; i < 9; i++)
234 ast_set_index_reg(ast, AST_IO_GR_PORT, i, stdtable->gr[i]);
235 }
236
237 static void ast_set_crtc_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
238 struct ast_vbios_mode_info *vbios_mode)
239 {
240 struct ast_private *ast = crtc->dev->dev_private;
241 u8 jreg05 = 0, jreg07 = 0, jreg09 = 0, jregAC = 0, jregAD = 0, jregAE = 0;
242 u16 temp;
243
244 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x00);
245
246 temp = (mode->crtc_htotal >> 3) - 5;
247 if (temp & 0x100)
248 jregAC |= 0x01; /* HT D[8] */
249 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x00, 0x00, temp);
250
251 temp = (mode->crtc_hdisplay >> 3) - 1;
252 if (temp & 0x100)
253 jregAC |= 0x04; /* HDE D[8] */
254 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x01, 0x00, temp);
255
256 temp = (mode->crtc_hblank_start >> 3) - 1;
257 if (temp & 0x100)
258 jregAC |= 0x10; /* HBS D[8] */
259 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x02, 0x00, temp);
260
261 temp = ((mode->crtc_hblank_end >> 3) - 1) & 0x7f;
262 if (temp & 0x20)
263 jreg05 |= 0x80; /* HBE D[5] */
264 if (temp & 0x40)
265 jregAD |= 0x01; /* HBE D[5] */
266 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x03, 0xE0, (temp & 0x1f));
267
268 temp = (mode->crtc_hsync_start >> 3) - 1;
269 if (temp & 0x100)
270 jregAC |= 0x40; /* HRS D[5] */
271 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x04, 0x00, temp);
272
273 temp = ((mode->crtc_hsync_end >> 3) - 1) & 0x3f;
274 if (temp & 0x20)
275 jregAD |= 0x04; /* HRE D[5] */
276 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x05, 0x60, (u8)((temp & 0x1f) | jreg05));
277
278 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAC, 0x00, jregAC);
279 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAD, 0x00, jregAD);
280
281 /* vert timings */
282 temp = (mode->crtc_vtotal) - 2;
283 if (temp & 0x100)
284 jreg07 |= 0x01;
285 if (temp & 0x200)
286 jreg07 |= 0x20;
287 if (temp & 0x400)
288 jregAE |= 0x01;
289 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x06, 0x00, temp);
290
291 temp = (mode->crtc_vsync_start) - 1;
292 if (temp & 0x100)
293 jreg07 |= 0x04;
294 if (temp & 0x200)
295 jreg07 |= 0x80;
296 if (temp & 0x400)
297 jregAE |= 0x08;
298 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x10, 0x00, temp);
299
300 temp = (mode->crtc_vsync_end - 1) & 0x3f;
301 if (temp & 0x10)
302 jregAE |= 0x20;
303 if (temp & 0x20)
304 jregAE |= 0x40;
305 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x70, temp & 0xf);
306
307 temp = mode->crtc_vdisplay - 1;
308 if (temp & 0x100)
309 jreg07 |= 0x02;
310 if (temp & 0x200)
311 jreg07 |= 0x40;
312 if (temp & 0x400)
313 jregAE |= 0x02;
314 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x12, 0x00, temp);
315
316 temp = mode->crtc_vblank_start - 1;
317 if (temp & 0x100)
318 jreg07 |= 0x08;
319 if (temp & 0x200)
320 jreg09 |= 0x20;
321 if (temp & 0x400)
322 jregAE |= 0x04;
323 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x15, 0x00, temp);
324
325 temp = mode->crtc_vblank_end - 1;
326 if (temp & 0x100)
327 jregAE |= 0x10;
328 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x16, 0x00, temp);
329
330 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x07, 0x00, jreg07);
331 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x09, 0xdf, jreg09);
332 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAE, 0x00, (jregAE | 0x80));
333
334 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x80);
335 }
336
337 static void ast_set_offset_reg(struct drm_crtc *crtc)
338 {
339 struct ast_private *ast = crtc->dev->dev_private;
340
341 u16 offset;
342
343 offset = crtc->fb->pitches[0] >> 3;
344 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x13, (offset & 0xff));
345 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xb0, (offset >> 8) & 0x3f);
346 }
347
348 static void ast_set_dclk_reg(struct drm_device *dev, struct drm_display_mode *mode,
349 struct ast_vbios_mode_info *vbios_mode)
350 {
351 struct ast_private *ast = dev->dev_private;
352 struct ast_vbios_dclk_info *clk_info;
353
354 clk_info = &dclk_table[vbios_mode->enh_table->dclk_index];
355
356 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xc0, 0x00, clk_info->param1);
357 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xc1, 0x00, clk_info->param2);
358 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xbb, 0x0f,
359 (clk_info->param3 & 0x80) | ((clk_info->param3 & 0x3) << 4));
360 }
361
362 static void ast_set_ext_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
363 struct ast_vbios_mode_info *vbios_mode)
364 {
365 struct ast_private *ast = crtc->dev->dev_private;
366 u8 jregA0 = 0, jregA3 = 0, jregA8 = 0;
367
368 switch (crtc->fb->bits_per_pixel) {
369 case 8:
370 jregA0 = 0x70;
371 jregA3 = 0x01;
372 jregA8 = 0x00;
373 break;
374 case 15:
375 case 16:
376 jregA0 = 0x70;
377 jregA3 = 0x04;
378 jregA8 = 0x02;
379 break;
380 case 32:
381 jregA0 = 0x70;
382 jregA3 = 0x08;
383 jregA8 = 0x02;
384 break;
385 }
386
387 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa0, 0x8f, jregA0);
388 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xf0, jregA3);
389 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa8, 0xfd, jregA8);
390
391 /* Set Threshold */
392 if (ast->chip == AST2300) {
393 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x78);
394 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x60);
395 } else if (ast->chip == AST2100 ||
396 ast->chip == AST1100 ||
397 ast->chip == AST2200 ||
398 ast->chip == AST2150) {
399 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x3f);
400 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x2f);
401 } else {
402 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x2f);
403 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x1f);
404 }
405 }
406
407 static void ast_set_sync_reg(struct drm_device *dev, struct drm_display_mode *mode,
408 struct ast_vbios_mode_info *vbios_mode)
409 {
410 struct ast_private *ast = dev->dev_private;
411 u8 jreg;
412
413 jreg = ast_io_read8(ast, AST_IO_MISC_PORT_READ);
414 jreg |= (vbios_mode->enh_table->flags & SyncNN);
415 ast_io_write8(ast, AST_IO_MISC_PORT_WRITE, jreg);
416 }
417
418 static bool ast_set_dac_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
419 struct ast_vbios_mode_info *vbios_mode)
420 {
421 switch (crtc->fb->bits_per_pixel) {
422 case 8:
423 break;
424 default:
425 return false;
426 }
427 return true;
428 }
429
430 static void ast_set_start_address_crt1(struct drm_crtc *crtc, unsigned offset)
431 {
432 struct ast_private *ast = crtc->dev->dev_private;
433 u32 addr;
434
435 addr = offset >> 2;
436 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x0d, (u8)(addr & 0xff));
437 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x0c, (u8)((addr >> 8) & 0xff));
438 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xaf, (u8)((addr >> 16) & 0xff));
439
440 }
441
442 static void ast_crtc_dpms(struct drm_crtc *crtc, int mode)
443 {
444 struct ast_private *ast = crtc->dev->dev_private;
445
446 if (ast->chip == AST1180)
447 return;
448
449 switch (mode) {
450 case DRM_MODE_DPMS_ON:
451 case DRM_MODE_DPMS_STANDBY:
452 case DRM_MODE_DPMS_SUSPEND:
453 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0);
454 ast_crtc_load_lut(crtc);
455 break;
456 case DRM_MODE_DPMS_OFF:
457 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0x20);
458 break;
459 }
460 }
461
462 static bool ast_crtc_mode_fixup(struct drm_crtc *crtc,
463 const struct drm_display_mode *mode,
464 struct drm_display_mode *adjusted_mode)
465 {
466 return true;
467 }
468
469 /* ast is different - we will force move buffers out of VRAM */
470 static int ast_crtc_do_set_base(struct drm_crtc *crtc,
471 struct drm_framebuffer *fb,
472 int x, int y, int atomic)
473 {
474 struct ast_private *ast = crtc->dev->dev_private;
475 struct drm_gem_object *obj;
476 struct ast_framebuffer *ast_fb;
477 struct ast_bo *bo;
478 int ret;
479 u64 gpu_addr;
480
481 /* push the previous fb to system ram */
482 if (!atomic && fb) {
483 ast_fb = to_ast_framebuffer(fb);
484 obj = ast_fb->obj;
485 bo = gem_to_ast_bo(obj);
486 ret = ast_bo_reserve(bo, false);
487 if (ret)
488 return ret;
489 ast_bo_push_sysram(bo);
490 ast_bo_unreserve(bo);
491 }
492
493 ast_fb = to_ast_framebuffer(crtc->fb);
494 obj = ast_fb->obj;
495 bo = gem_to_ast_bo(obj);
496
497 ret = ast_bo_reserve(bo, false);
498 if (ret)
499 return ret;
500
501 ret = ast_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
502 if (ret) {
503 ast_bo_unreserve(bo);
504 return ret;
505 }
506
507 if (&ast->fbdev->afb == ast_fb) {
508 /* if pushing console in kmap it */
509 ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
510 if (ret)
511 DRM_ERROR("failed to kmap fbcon\n");
512 }
513 ast_bo_unreserve(bo);
514
515 ast_set_start_address_crt1(crtc, (u32)gpu_addr);
516
517 return 0;
518 }
519
520 static int ast_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
521 struct drm_framebuffer *old_fb)
522 {
523 return ast_crtc_do_set_base(crtc, old_fb, x, y, 0);
524 }
525
526 static int ast_crtc_mode_set(struct drm_crtc *crtc,
527 struct drm_display_mode *mode,
528 struct drm_display_mode *adjusted_mode,
529 int x, int y,
530 struct drm_framebuffer *old_fb)
531 {
532 struct drm_device *dev = crtc->dev;
533 struct ast_private *ast = crtc->dev->dev_private;
534 struct ast_vbios_mode_info vbios_mode;
535 bool ret;
536 if (ast->chip == AST1180) {
537 DRM_ERROR("AST 1180 modesetting not supported\n");
538 return -EINVAL;
539 }
540
541 ret = ast_get_vbios_mode_info(crtc, mode, adjusted_mode, &vbios_mode);
542 if (ret == false)
543 return -EINVAL;
544 ast_open_key(ast);
545
546 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa1, 0xff, 0x04);
547
548 ast_set_std_reg(crtc, adjusted_mode, &vbios_mode);
549 ast_set_crtc_reg(crtc, adjusted_mode, &vbios_mode);
550 ast_set_offset_reg(crtc);
551 ast_set_dclk_reg(dev, adjusted_mode, &vbios_mode);
552 ast_set_ext_reg(crtc, adjusted_mode, &vbios_mode);
553 ast_set_sync_reg(dev, adjusted_mode, &vbios_mode);
554 ast_set_dac_reg(crtc, adjusted_mode, &vbios_mode);
555
556 ast_crtc_mode_set_base(crtc, x, y, old_fb);
557
558 return 0;
559 }
560
561 static void ast_crtc_disable(struct drm_crtc *crtc)
562 {
563
564 }
565
566 static void ast_crtc_prepare(struct drm_crtc *crtc)
567 {
568
569 }
570
571 static void ast_crtc_commit(struct drm_crtc *crtc)
572 {
573 struct ast_private *ast = crtc->dev->dev_private;
574 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0);
575 }
576
577
578 static const struct drm_crtc_helper_funcs ast_crtc_helper_funcs = {
579 .dpms = ast_crtc_dpms,
580 .mode_fixup = ast_crtc_mode_fixup,
581 .mode_set = ast_crtc_mode_set,
582 .mode_set_base = ast_crtc_mode_set_base,
583 .disable = ast_crtc_disable,
584 .load_lut = ast_crtc_load_lut,
585 .prepare = ast_crtc_prepare,
586 .commit = ast_crtc_commit,
587
588 };
589
590 static void ast_crtc_reset(struct drm_crtc *crtc)
591 {
592
593 }
594
595 static void ast_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
596 u16 *blue, uint32_t start, uint32_t size)
597 {
598 struct ast_crtc *ast_crtc = to_ast_crtc(crtc);
599 int end = (start + size > 256) ? 256 : start + size, i;
600
601 /* userspace palettes are always correct as is */
602 for (i = start; i < end; i++) {
603 ast_crtc->lut_r[i] = red[i] >> 8;
604 ast_crtc->lut_g[i] = green[i] >> 8;
605 ast_crtc->lut_b[i] = blue[i] >> 8;
606 }
607 ast_crtc_load_lut(crtc);
608 }
609
610
611 static void ast_crtc_destroy(struct drm_crtc *crtc)
612 {
613 drm_crtc_cleanup(crtc);
614 kfree(crtc);
615 }
616
617 static const struct drm_crtc_funcs ast_crtc_funcs = {
618 .cursor_set = ast_cursor_set,
619 .cursor_move = ast_cursor_move,
620 .reset = ast_crtc_reset,
621 .set_config = drm_crtc_helper_set_config,
622 .gamma_set = ast_crtc_gamma_set,
623 .destroy = ast_crtc_destroy,
624 };
625
626 static int ast_crtc_init(struct drm_device *dev)
627 {
628 struct ast_crtc *crtc;
629 int i;
630
631 crtc = kzalloc(sizeof(struct ast_crtc), GFP_KERNEL);
632 if (!crtc)
633 return -ENOMEM;
634
635 drm_crtc_init(dev, &crtc->base, &ast_crtc_funcs);
636 drm_mode_crtc_set_gamma_size(&crtc->base, 256);
637 drm_crtc_helper_add(&crtc->base, &ast_crtc_helper_funcs);
638
639 for (i = 0; i < 256; i++) {
640 crtc->lut_r[i] = i;
641 crtc->lut_g[i] = i;
642 crtc->lut_b[i] = i;
643 }
644 return 0;
645 }
646
647 static void ast_encoder_destroy(struct drm_encoder *encoder)
648 {
649 drm_encoder_cleanup(encoder);
650 kfree(encoder);
651 }
652
653
654 static struct drm_encoder *ast_best_single_encoder(struct drm_connector *connector)
655 {
656 int enc_id = connector->encoder_ids[0];
657 struct drm_mode_object *obj;
658 struct drm_encoder *encoder;
659
660 /* pick the encoder ids */
661 if (enc_id) {
662 obj = drm_mode_object_find(connector->dev, enc_id, DRM_MODE_OBJECT_ENCODER);
663 if (!obj)
664 return NULL;
665 encoder = obj_to_encoder(obj);
666 return encoder;
667 }
668 return NULL;
669 }
670
671
672 static const struct drm_encoder_funcs ast_enc_funcs = {
673 .destroy = ast_encoder_destroy,
674 };
675
676 static void ast_encoder_dpms(struct drm_encoder *encoder, int mode)
677 {
678
679 }
680
681 static bool ast_mode_fixup(struct drm_encoder *encoder,
682 const struct drm_display_mode *mode,
683 struct drm_display_mode *adjusted_mode)
684 {
685 return true;
686 }
687
688 static void ast_encoder_mode_set(struct drm_encoder *encoder,
689 struct drm_display_mode *mode,
690 struct drm_display_mode *adjusted_mode)
691 {
692 }
693
694 static void ast_encoder_prepare(struct drm_encoder *encoder)
695 {
696
697 }
698
699 static void ast_encoder_commit(struct drm_encoder *encoder)
700 {
701
702 }
703
704
705 static const struct drm_encoder_helper_funcs ast_enc_helper_funcs = {
706 .dpms = ast_encoder_dpms,
707 .mode_fixup = ast_mode_fixup,
708 .prepare = ast_encoder_prepare,
709 .commit = ast_encoder_commit,
710 .mode_set = ast_encoder_mode_set,
711 };
712
713 static int ast_encoder_init(struct drm_device *dev)
714 {
715 struct ast_encoder *ast_encoder;
716
717 ast_encoder = kzalloc(sizeof(struct ast_encoder), GFP_KERNEL);
718 if (!ast_encoder)
719 return -ENOMEM;
720
721 drm_encoder_init(dev, &ast_encoder->base, &ast_enc_funcs,
722 DRM_MODE_ENCODER_DAC);
723 drm_encoder_helper_add(&ast_encoder->base, &ast_enc_helper_funcs);
724
725 ast_encoder->base.possible_crtcs = 1;
726 return 0;
727 }
728
729 static int ast_get_modes(struct drm_connector *connector)
730 {
731 struct ast_connector *ast_connector = to_ast_connector(connector);
732 struct edid *edid;
733 int ret;
734
735 edid = drm_get_edid(connector, &ast_connector->i2c->adapter);
736 if (edid) {
737 drm_mode_connector_update_edid_property(&ast_connector->base, edid);
738 ret = drm_add_edid_modes(connector, edid);
739 kfree(edid);
740 return ret;
741 } else
742 drm_mode_connector_update_edid_property(&ast_connector->base, NULL);
743 return 0;
744 }
745
746 static int ast_mode_valid(struct drm_connector *connector,
747 struct drm_display_mode *mode)
748 {
749 return MODE_OK;
750 }
751
752 static void ast_connector_destroy(struct drm_connector *connector)
753 {
754 struct ast_connector *ast_connector = to_ast_connector(connector);
755 ast_i2c_destroy(ast_connector->i2c);
756 drm_sysfs_connector_remove(connector);
757 drm_connector_cleanup(connector);
758 kfree(connector);
759 }
760
761 static enum drm_connector_status
762 ast_connector_detect(struct drm_connector *connector, bool force)
763 {
764 return connector_status_connected;
765 }
766
767 static const struct drm_connector_helper_funcs ast_connector_helper_funcs = {
768 .mode_valid = ast_mode_valid,
769 .get_modes = ast_get_modes,
770 .best_encoder = ast_best_single_encoder,
771 };
772
773 static const struct drm_connector_funcs ast_connector_funcs = {
774 .dpms = drm_helper_connector_dpms,
775 .detect = ast_connector_detect,
776 .fill_modes = drm_helper_probe_single_connector_modes,
777 .destroy = ast_connector_destroy,
778 };
779
780 static int ast_connector_init(struct drm_device *dev)
781 {
782 struct ast_connector *ast_connector;
783 struct drm_connector *connector;
784 struct drm_encoder *encoder;
785
786 ast_connector = kzalloc(sizeof(struct ast_connector), GFP_KERNEL);
787 if (!ast_connector)
788 return -ENOMEM;
789
790 connector = &ast_connector->base;
791 drm_connector_init(dev, connector, &ast_connector_funcs, DRM_MODE_CONNECTOR_VGA);
792
793 drm_connector_helper_add(connector, &ast_connector_helper_funcs);
794
795 connector->interlace_allowed = 0;
796 connector->doublescan_allowed = 0;
797
798 drm_sysfs_connector_add(connector);
799
800 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
801
802 encoder = list_first_entry(&dev->mode_config.encoder_list, struct drm_encoder, head);
803 drm_mode_connector_attach_encoder(connector, encoder);
804
805 ast_connector->i2c = ast_i2c_create(dev);
806 if (!ast_connector->i2c)
807 DRM_ERROR("failed to add ddc bus for connector\n");
808
809 return 0;
810 }
811
812 /* allocate cursor cache and pin at start of VRAM */
813 static int ast_cursor_init(struct drm_device *dev)
814 {
815 struct ast_private *ast = dev->dev_private;
816 int size;
817 int ret;
818 struct drm_gem_object *obj;
819 struct ast_bo *bo;
820 uint64_t gpu_addr;
821
822 size = (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE) * AST_DEFAULT_HWC_NUM;
823
824 ret = ast_gem_create(dev, size, true, &obj);
825 if (ret)
826 return ret;
827 bo = gem_to_ast_bo(obj);
828 ret = ast_bo_reserve(bo, false);
829 if (unlikely(ret != 0))
830 goto fail;
831
832 ret = ast_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
833 ast_bo_unreserve(bo);
834 if (ret)
835 goto fail;
836
837 /* kmap the object */
838 ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &ast->cache_kmap);
839 if (ret)
840 goto fail;
841
842 ast->cursor_cache = obj;
843 ast->cursor_cache_gpu_addr = gpu_addr;
844 DRM_DEBUG_KMS("pinned cursor cache at %llx\n", ast->cursor_cache_gpu_addr);
845 return 0;
846 fail:
847 return ret;
848 }
849
850 static void ast_cursor_fini(struct drm_device *dev)
851 {
852 struct ast_private *ast = dev->dev_private;
853 ttm_bo_kunmap(&ast->cache_kmap);
854 drm_gem_object_unreference_unlocked(ast->cursor_cache);
855 }
856
857 int ast_mode_init(struct drm_device *dev)
858 {
859 ast_cursor_init(dev);
860 ast_crtc_init(dev);
861 ast_encoder_init(dev);
862 ast_connector_init(dev);
863 return 0;
864 }
865
866 void ast_mode_fini(struct drm_device *dev)
867 {
868 ast_cursor_fini(dev);
869 }
870
871 static int get_clock(void *i2c_priv)
872 {
873 struct ast_i2c_chan *i2c = i2c_priv;
874 struct ast_private *ast = i2c->dev->dev_private;
875 uint32_t val;
876
877 val = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x10) >> 4;
878 return val & 1 ? 1 : 0;
879 }
880
881 static int get_data(void *i2c_priv)
882 {
883 struct ast_i2c_chan *i2c = i2c_priv;
884 struct ast_private *ast = i2c->dev->dev_private;
885 uint32_t val;
886
887 val = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x20) >> 5;
888 return val & 1 ? 1 : 0;
889 }
890
891 static void set_clock(void *i2c_priv, int clock)
892 {
893 struct ast_i2c_chan *i2c = i2c_priv;
894 struct ast_private *ast = i2c->dev->dev_private;
895 int i;
896 u8 ujcrb7, jtemp;
897
898 for (i = 0; i < 0x10000; i++) {
899 ujcrb7 = ((clock & 0x01) ? 0 : 1);
900 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0xfe, ujcrb7);
901 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x01);
902 if (ujcrb7 == jtemp)
903 break;
904 }
905 }
906
907 static void set_data(void *i2c_priv, int data)
908 {
909 struct ast_i2c_chan *i2c = i2c_priv;
910 struct ast_private *ast = i2c->dev->dev_private;
911 int i;
912 u8 ujcrb7, jtemp;
913
914 for (i = 0; i < 0x10000; i++) {
915 ujcrb7 = ((data & 0x01) ? 0 : 1) << 2;
916 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0xfb, ujcrb7);
917 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x04);
918 if (ujcrb7 == jtemp)
919 break;
920 }
921 }
922
923 static struct ast_i2c_chan *ast_i2c_create(struct drm_device *dev)
924 {
925 struct ast_i2c_chan *i2c;
926 int ret;
927
928 i2c = kzalloc(sizeof(struct ast_i2c_chan), GFP_KERNEL);
929 if (!i2c)
930 return NULL;
931
932 i2c->adapter.owner = THIS_MODULE;
933 i2c->adapter.class = I2C_CLASS_DDC;
934 i2c->adapter.dev.parent = &dev->pdev->dev;
935 i2c->dev = dev;
936 i2c_set_adapdata(&i2c->adapter, i2c);
937 snprintf(i2c->adapter.name, sizeof(i2c->adapter.name),
938 "AST i2c bit bus");
939 i2c->adapter.algo_data = &i2c->bit;
940
941 i2c->bit.udelay = 20;
942 i2c->bit.timeout = 2;
943 i2c->bit.data = i2c;
944 i2c->bit.setsda = set_data;
945 i2c->bit.setscl = set_clock;
946 i2c->bit.getsda = get_data;
947 i2c->bit.getscl = get_clock;
948 ret = i2c_bit_add_bus(&i2c->adapter);
949 if (ret) {
950 DRM_ERROR("Failed to register bit i2c\n");
951 goto out_free;
952 }
953
954 return i2c;
955 out_free:
956 kfree(i2c);
957 return NULL;
958 }
959
960 static void ast_i2c_destroy(struct ast_i2c_chan *i2c)
961 {
962 if (!i2c)
963 return;
964 i2c_del_adapter(&i2c->adapter);
965 kfree(i2c);
966 }
967
968 static void ast_show_cursor(struct drm_crtc *crtc)
969 {
970 struct ast_private *ast = crtc->dev->dev_private;
971 u8 jreg;
972
973 jreg = 0x2;
974 /* enable ARGB cursor */
975 jreg |= 1;
976 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, jreg);
977 }
978
979 static void ast_hide_cursor(struct drm_crtc *crtc)
980 {
981 struct ast_private *ast = crtc->dev->dev_private;
982 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, 0x00);
983 }
984
985 static u32 copy_cursor_image(u8 *src, u8 *dst, int width, int height)
986 {
987 union {
988 u32 ul;
989 u8 b[4];
990 } srcdata32[2], data32;
991 union {
992 u16 us;
993 u8 b[2];
994 } data16;
995 u32 csum = 0;
996 s32 alpha_dst_delta, last_alpha_dst_delta;
997 u8 *srcxor, *dstxor;
998 int i, j;
999 u32 per_pixel_copy, two_pixel_copy;
1000
1001 alpha_dst_delta = AST_MAX_HWC_WIDTH << 1;
1002 last_alpha_dst_delta = alpha_dst_delta - (width << 1);
1003
1004 srcxor = src;
1005 dstxor = (u8 *)dst + last_alpha_dst_delta + (AST_MAX_HWC_HEIGHT - height) * alpha_dst_delta;
1006 per_pixel_copy = width & 1;
1007 two_pixel_copy = width >> 1;
1008
1009 for (j = 0; j < height; j++) {
1010 for (i = 0; i < two_pixel_copy; i++) {
1011 srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
1012 srcdata32[1].ul = *((u32 *)(srcxor + 4)) & 0xf0f0f0f0;
1013 data32.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
1014 data32.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
1015 data32.b[2] = srcdata32[0].b[1] | (srcdata32[1].b[0] >> 4);
1016 data32.b[3] = srcdata32[0].b[3] | (srcdata32[1].b[2] >> 4);
1017
1018 writel(data32.ul, dstxor);
1019 csum += data32.ul;
1020
1021 dstxor += 4;
1022 srcxor += 8;
1023
1024 }
1025
1026 for (i = 0; i < per_pixel_copy; i++) {
1027 srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
1028 data16.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
1029 data16.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
1030 writew(data16.us, dstxor);
1031 csum += (u32)data16.us;
1032
1033 dstxor += 2;
1034 srcxor += 4;
1035 }
1036 dstxor += last_alpha_dst_delta;
1037 }
1038 return csum;
1039 }
1040
1041 static int ast_cursor_set(struct drm_crtc *crtc,
1042 struct drm_file *file_priv,
1043 uint32_t handle,
1044 uint32_t width,
1045 uint32_t height)
1046 {
1047 struct ast_private *ast = crtc->dev->dev_private;
1048 struct ast_crtc *ast_crtc = to_ast_crtc(crtc);
1049 struct drm_gem_object *obj;
1050 struct ast_bo *bo;
1051 uint64_t gpu_addr;
1052 u32 csum;
1053 int ret;
1054 struct ttm_bo_kmap_obj uobj_map;
1055 u8 *src, *dst;
1056 bool src_isiomem, dst_isiomem;
1057 if (!handle) {
1058 ast_hide_cursor(crtc);
1059 return 0;
1060 }
1061
1062 if (width > AST_MAX_HWC_WIDTH || height > AST_MAX_HWC_HEIGHT)
1063 return -EINVAL;
1064
1065 obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
1066 if (!obj) {
1067 DRM_ERROR("Cannot find cursor object %x for crtc\n", handle);
1068 return -ENOENT;
1069 }
1070 bo = gem_to_ast_bo(obj);
1071
1072 ret = ast_bo_reserve(bo, false);
1073 if (ret)
1074 goto fail;
1075
1076 ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &uobj_map);
1077
1078 src = ttm_kmap_obj_virtual(&uobj_map, &src_isiomem);
1079 dst = ttm_kmap_obj_virtual(&ast->cache_kmap, &dst_isiomem);
1080
1081 if (src_isiomem == true)
1082 DRM_ERROR("src cursor bo should be in main memory\n");
1083 if (dst_isiomem == false)
1084 DRM_ERROR("dst bo should be in VRAM\n");
1085
1086 dst += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor;
1087
1088 /* do data transfer to cursor cache */
1089 csum = copy_cursor_image(src, dst, width, height);
1090
1091 /* write checksum + signature */
1092 ttm_bo_kunmap(&uobj_map);
1093 ast_bo_unreserve(bo);
1094 {
1095 u8 *dst = (u8 *)ast->cache_kmap.virtual + (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor + AST_HWC_SIZE;
1096 writel(csum, dst);
1097 writel(width, dst + AST_HWC_SIGNATURE_SizeX);
1098 writel(height, dst + AST_HWC_SIGNATURE_SizeY);
1099 writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTX);
1100 writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTY);
1101
1102 /* set pattern offset */
1103 gpu_addr = ast->cursor_cache_gpu_addr;
1104 gpu_addr += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor;
1105 gpu_addr >>= 3;
1106 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc8, gpu_addr & 0xff);
1107 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc9, (gpu_addr >> 8) & 0xff);
1108 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xca, (gpu_addr >> 16) & 0xff);
1109 }
1110 ast_crtc->cursor_width = width;
1111 ast_crtc->cursor_height = height;
1112 ast_crtc->offset_x = AST_MAX_HWC_WIDTH - width;
1113 ast_crtc->offset_y = AST_MAX_HWC_WIDTH - height;
1114
1115 ast->next_cursor = (ast->next_cursor + 1) % AST_DEFAULT_HWC_NUM;
1116
1117 ast_show_cursor(crtc);
1118
1119 drm_gem_object_unreference_unlocked(obj);
1120 return 0;
1121 fail:
1122 drm_gem_object_unreference_unlocked(obj);
1123 return ret;
1124 }
1125
1126 static int ast_cursor_move(struct drm_crtc *crtc,
1127 int x, int y)
1128 {
1129 struct ast_crtc *ast_crtc = to_ast_crtc(crtc);
1130 struct ast_private *ast = crtc->dev->dev_private;
1131 int x_offset, y_offset;
1132 u8 *sig;
1133
1134 sig = (u8 *)ast->cache_kmap.virtual + (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor + AST_HWC_SIZE;
1135 writel(x, sig + AST_HWC_SIGNATURE_X);
1136 writel(y, sig + AST_HWC_SIGNATURE_Y);
1137
1138 x_offset = ast_crtc->offset_x;
1139 y_offset = ast_crtc->offset_y;
1140 if (x < 0) {
1141 x_offset = (-x) + ast_crtc->offset_x;
1142 x = 0;
1143 }
1144
1145 if (y < 0) {
1146 y_offset = (-y) + ast_crtc->offset_y;
1147 y = 0;
1148 }
1149 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc2, x_offset);
1150 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc3, y_offset);
1151 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc4, (x & 0xff));
1152 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc5, ((x >> 8) & 0x0f));
1153 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc6, (y & 0xff));
1154 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc7, ((y >> 8) & 0x07));
1155
1156 /* dummy write to fire HWC */
1157 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xCB, 0xFF, 0x00);
1158
1159 return 0;
1160 }
Linux with added FPC-III support