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vt: vt_ioctl: fix VT_DISALLOCATE freeing in-use virtual console
[linux/fpc-iii.git] / drivers / gpu / drm / ast / ast_mode.c
blob9d92d2d2fcfc7c1ccb85fa6ffce1485fc874f979
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
39 static struct ast_i2c_chan *ast_i2c_create(struct drm_device *dev);
40 static void ast_i2c_destroy(struct ast_i2c_chan *i2c);
41 static 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);
46 static int ast_cursor_move(struct drm_crtc *crtc,
47 int x, int y);
48
49 static 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
63 static 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
80 static 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 }
229 static 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
274 static 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
383 static 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
395 static 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
413 static 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
460 static 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
473 static 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
487 static 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
499 static 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 */
524 static 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_offset_reg(crtc);
572 ast_set_start_address_crt1(crtc, (u32)gpu_addr);
573
574 return 0;
575 }
576
577 static int ast_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
578 struct drm_framebuffer *old_fb)
579 {
580 return ast_crtc_do_set_base(crtc, old_fb, x, y, 0);
581 }
582
583 static int ast_crtc_mode_set(struct drm_crtc *crtc,
584 struct drm_display_mode *mode,
585 struct drm_display_mode *adjusted_mode,
586 int x, int y,
587 struct drm_framebuffer *old_fb)
588 {
589 struct drm_device *dev = crtc->dev;
590 struct ast_private *ast = crtc->dev->dev_private;
591 struct ast_vbios_mode_info vbios_mode;
592 bool ret;
593 if (ast->chip == AST1180) {
594 DRM_ERROR("AST 1180 modesetting not supported\n");
595 return -EINVAL;
596 }
597
598 ret = ast_get_vbios_mode_info(crtc, mode, adjusted_mode, &vbios_mode);
599 if (ret == false)
600 return -EINVAL;
601 ast_open_key(ast);
602
603 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa1, 0x06);
604
605 ast_set_std_reg(crtc, adjusted_mode, &vbios_mode);
606 ast_set_crtc_reg(crtc, adjusted_mode, &vbios_mode);
607 ast_set_offset_reg(crtc);
608 ast_set_dclk_reg(dev, adjusted_mode, &vbios_mode);
609 ast_set_ext_reg(crtc, adjusted_mode, &vbios_mode);
610 ast_set_sync_reg(dev, adjusted_mode, &vbios_mode);
611 ast_set_dac_reg(crtc, adjusted_mode, &vbios_mode);
612
613 ast_crtc_mode_set_base(crtc, x, y, old_fb);
614
615 return 0;
616 }
617
618 static void ast_crtc_disable(struct drm_crtc *crtc)
619 {
620 int ret;
621
622 DRM_DEBUG_KMS("\n");
623 ast_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
624 if (crtc->primary->fb) {
625 struct ast_framebuffer *ast_fb = to_ast_framebuffer(crtc->primary->fb);
626 struct drm_gem_object *obj = ast_fb->obj;
627 struct ast_bo *bo = gem_to_ast_bo(obj);
628
629 ret = ast_bo_reserve(bo, false);
630 if (ret)
631 return;
632
633 ast_bo_push_sysram(bo);
634 ast_bo_unreserve(bo);
635 }
636 crtc->primary->fb = NULL;
637 }
638
639 static void ast_crtc_prepare(struct drm_crtc *crtc)
640 {
641
642 }
643
644 static void ast_crtc_commit(struct drm_crtc *crtc)
645 {
646 struct ast_private *ast = crtc->dev->dev_private;
647 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0);
648 ast_crtc_load_lut(crtc);
649 }
650
651
652 static const struct drm_crtc_helper_funcs ast_crtc_helper_funcs = {
653 .dpms = ast_crtc_dpms,
654 .mode_set = ast_crtc_mode_set,
655 .mode_set_base = ast_crtc_mode_set_base,
656 .disable = ast_crtc_disable,
657 .prepare = ast_crtc_prepare,
658 .commit = ast_crtc_commit,
659
660 };
661
662 static void ast_crtc_reset(struct drm_crtc *crtc)
663 {
664
665 }
666
667 static int ast_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
668 u16 *blue, uint32_t size,
669 struct drm_modeset_acquire_ctx *ctx)
670 {
671 ast_crtc_load_lut(crtc);
672
673 return 0;
674 }
675
676
677 static void ast_crtc_destroy(struct drm_crtc *crtc)
678 {
679 drm_crtc_cleanup(crtc);
680 kfree(crtc);
681 }
682
683 static const struct drm_crtc_funcs ast_crtc_funcs = {
684 .cursor_set = ast_cursor_set,
685 .cursor_move = ast_cursor_move,
686 .reset = ast_crtc_reset,
687 .set_config = drm_crtc_helper_set_config,
688 .gamma_set = ast_crtc_gamma_set,
689 .destroy = ast_crtc_destroy,
690 };
691
692 static int ast_crtc_init(struct drm_device *dev)
693 {
694 struct ast_crtc *crtc;
695
696 crtc = kzalloc(sizeof(struct ast_crtc), GFP_KERNEL);
697 if (!crtc)
698 return -ENOMEM;
699
700 drm_crtc_init(dev, &crtc->base, &ast_crtc_funcs);
701 drm_mode_crtc_set_gamma_size(&crtc->base, 256);
702 drm_crtc_helper_add(&crtc->base, &ast_crtc_helper_funcs);
703 return 0;
704 }
705
706 static void ast_encoder_destroy(struct drm_encoder *encoder)
707 {
708 drm_encoder_cleanup(encoder);
709 kfree(encoder);
710 }
711
712
713 static struct drm_encoder *ast_best_single_encoder(struct drm_connector *connector)
714 {
715 int enc_id = connector->encoder_ids[0];
716 /* pick the encoder ids */
717 if (enc_id)
718 return drm_encoder_find(connector->dev, NULL, enc_id);
719 return NULL;
720 }
721
722
723 static const struct drm_encoder_funcs ast_enc_funcs = {
724 .destroy = ast_encoder_destroy,
725 };
726
727 static void ast_encoder_dpms(struct drm_encoder *encoder, int mode)
728 {
729
730 }
731
732 static void ast_encoder_mode_set(struct drm_encoder *encoder,
733 struct drm_display_mode *mode,
734 struct drm_display_mode *adjusted_mode)
735 {
736 }
737
738 static void ast_encoder_prepare(struct drm_encoder *encoder)
739 {
740
741 }
742
743 static void ast_encoder_commit(struct drm_encoder *encoder)
744 {
745
746 }
747
748
749 static const struct drm_encoder_helper_funcs ast_enc_helper_funcs = {
750 .dpms = ast_encoder_dpms,
751 .prepare = ast_encoder_prepare,
752 .commit = ast_encoder_commit,
753 .mode_set = ast_encoder_mode_set,
754 };
755
756 static int ast_encoder_init(struct drm_device *dev)
757 {
758 struct ast_encoder *ast_encoder;
759
760 ast_encoder = kzalloc(sizeof(struct ast_encoder), GFP_KERNEL);
761 if (!ast_encoder)
762 return -ENOMEM;
763
764 drm_encoder_init(dev, &ast_encoder->base, &ast_enc_funcs,
765 DRM_MODE_ENCODER_DAC, NULL);
766 drm_encoder_helper_add(&ast_encoder->base, &ast_enc_helper_funcs);
767
768 ast_encoder->base.possible_crtcs = 1;
769 return 0;
770 }
771
772 static int ast_get_modes(struct drm_connector *connector)
773 {
774 struct ast_connector *ast_connector = to_ast_connector(connector);
775 struct ast_private *ast = connector->dev->dev_private;
776 struct edid *edid;
777 int ret;
778 bool flags = false;
779 if (ast->tx_chip_type == AST_TX_DP501) {
780 ast->dp501_maxclk = 0xff;
781 edid = kmalloc(128, GFP_KERNEL);
782 if (!edid)
783 return -ENOMEM;
784
785 flags = ast_dp501_read_edid(connector->dev, (u8 *)edid);
786 if (flags)
787 ast->dp501_maxclk = ast_get_dp501_max_clk(connector->dev);
788 else
789 kfree(edid);
790 }
791 if (!flags)
792 edid = drm_get_edid(connector, &ast_connector->i2c->adapter);
793 if (edid) {
794 drm_connector_update_edid_property(&ast_connector->base, edid);
795 ret = drm_add_edid_modes(connector, edid);
796 kfree(edid);
797 return ret;
798 } else
799 drm_connector_update_edid_property(&ast_connector->base, NULL);
800 return 0;
801 }
802
803 static enum drm_mode_status ast_mode_valid(struct drm_connector *connector,
804 struct drm_display_mode *mode)
805 {
806 struct ast_private *ast = connector->dev->dev_private;
807 int flags = MODE_NOMODE;
808 uint32_t jtemp;
809
810 if (ast->support_wide_screen) {
811 if ((mode->hdisplay == 1680) && (mode->vdisplay == 1050))
812 return MODE_OK;
813 if ((mode->hdisplay == 1280) && (mode->vdisplay == 800))
814 return MODE_OK;
815 if ((mode->hdisplay == 1440) && (mode->vdisplay == 900))
816 return MODE_OK;
817 if ((mode->hdisplay == 1360) && (mode->vdisplay == 768))
818 return MODE_OK;
819 if ((mode->hdisplay == 1600) && (mode->vdisplay == 900))
820 return MODE_OK;
821
822 if ((ast->chip == AST2100) || (ast->chip == AST2200) ||
823 (ast->chip == AST2300) || (ast->chip == AST2400) ||
824 (ast->chip == AST2500) || (ast->chip == AST1180)) {
825 if ((mode->hdisplay == 1920) && (mode->vdisplay == 1080))
826 return MODE_OK;
827
828 if ((mode->hdisplay == 1920) && (mode->vdisplay == 1200)) {
829 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff);
830 if (jtemp & 0x01)
831 return MODE_NOMODE;
832 else
833 return MODE_OK;
834 }
835 }
836 }
837 switch (mode->hdisplay) {
838 case 640:
839 if (mode->vdisplay == 480) flags = MODE_OK;
840 break;
841 case 800:
842 if (mode->vdisplay == 600) flags = MODE_OK;
843 break;
844 case 1024:
845 if (mode->vdisplay == 768) flags = MODE_OK;
846 break;
847 case 1280:
848 if (mode->vdisplay == 1024) flags = MODE_OK;
849 break;
850 case 1600:
851 if (mode->vdisplay == 1200) flags = MODE_OK;
852 break;
853 default:
854 return flags;
855 }
856
857 return flags;
858 }
859
860 static void ast_connector_destroy(struct drm_connector *connector)
861 {
862 struct ast_connector *ast_connector = to_ast_connector(connector);
863 ast_i2c_destroy(ast_connector->i2c);
864 drm_connector_unregister(connector);
865 drm_connector_cleanup(connector);
866 kfree(connector);
867 }
868
869 static const struct drm_connector_helper_funcs ast_connector_helper_funcs = {
870 .mode_valid = ast_mode_valid,
871 .get_modes = ast_get_modes,
872 .best_encoder = ast_best_single_encoder,
873 };
874
875 static const struct drm_connector_funcs ast_connector_funcs = {
876 .dpms = drm_helper_connector_dpms,
877 .fill_modes = drm_helper_probe_single_connector_modes,
878 .destroy = ast_connector_destroy,
879 };
880
881 static int ast_connector_init(struct drm_device *dev)
882 {
883 struct ast_connector *ast_connector;
884 struct drm_connector *connector;
885 struct drm_encoder *encoder;
886
887 ast_connector = kzalloc(sizeof(struct ast_connector), GFP_KERNEL);
888 if (!ast_connector)
889 return -ENOMEM;
890
891 connector = &ast_connector->base;
892 drm_connector_init(dev, connector, &ast_connector_funcs, DRM_MODE_CONNECTOR_VGA);
893
894 drm_connector_helper_add(connector, &ast_connector_helper_funcs);
895
896 connector->interlace_allowed = 0;
897 connector->doublescan_allowed = 0;
898
899 drm_connector_register(connector);
900
901 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
902
903 encoder = list_first_entry(&dev->mode_config.encoder_list, struct drm_encoder, head);
904 drm_connector_attach_encoder(connector, encoder);
905
906 ast_connector->i2c = ast_i2c_create(dev);
907 if (!ast_connector->i2c)
908 DRM_ERROR("failed to add ddc bus for connector\n");
909
910 return 0;
911 }
912
913 /* allocate cursor cache and pin at start of VRAM */
914 static int ast_cursor_init(struct drm_device *dev)
915 {
916 struct ast_private *ast = dev->dev_private;
917 int size;
918 int ret;
919 struct drm_gem_object *obj;
920 struct ast_bo *bo;
921 uint64_t gpu_addr;
922
923 size = (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE) * AST_DEFAULT_HWC_NUM;
924
925 ret = ast_gem_create(dev, size, true, &obj);
926 if (ret)
927 return ret;
928 bo = gem_to_ast_bo(obj);
929 ret = ast_bo_reserve(bo, false);
930 if (unlikely(ret != 0))
931 goto fail;
932
933 ret = ast_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
934 ast_bo_unreserve(bo);
935 if (ret)
936 goto fail;
937
938 /* kmap the object */
939 ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &ast->cache_kmap);
940 if (ret)
941 goto fail;
942
943 ast->cursor_cache = obj;
944 ast->cursor_cache_gpu_addr = gpu_addr;
945 DRM_DEBUG_KMS("pinned cursor cache at %llx\n", ast->cursor_cache_gpu_addr);
946 return 0;
947 fail:
948 return ret;
949 }
950
951 static void ast_cursor_fini(struct drm_device *dev)
952 {
953 struct ast_private *ast = dev->dev_private;
954 ttm_bo_kunmap(&ast->cache_kmap);
955 drm_gem_object_put_unlocked(ast->cursor_cache);
956 }
957
958 int ast_mode_init(struct drm_device *dev)
959 {
960 ast_cursor_init(dev);
961 ast_crtc_init(dev);
962 ast_encoder_init(dev);
963 ast_connector_init(dev);
964 return 0;
965 }
966
967 void ast_mode_fini(struct drm_device *dev)
968 {
969 ast_cursor_fini(dev);
970 }
971
972 static int get_clock(void *i2c_priv)
973 {
974 struct ast_i2c_chan *i2c = i2c_priv;
975 struct ast_private *ast = i2c->dev->dev_private;
976 uint32_t val, val2, count, pass;
977
978 count = 0;
979 pass = 0;
980 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x10) >> 4) & 0x01;
981 do {
982 val2 = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x10) >> 4) & 0x01;
983 if (val == val2) {
984 pass++;
985 } else {
986 pass = 0;
987 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x10) >> 4) & 0x01;
988 }
989 } while ((pass < 5) && (count++ < 0x10000));
990
991 return val & 1 ? 1 : 0;
992 }
993
994 static int get_data(void *i2c_priv)
995 {
996 struct ast_i2c_chan *i2c = i2c_priv;
997 struct ast_private *ast = i2c->dev->dev_private;
998 uint32_t val, val2, count, pass;
999
1000 count = 0;
1001 pass = 0;
1002 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x20) >> 5) & 0x01;
1003 do {
1004 val2 = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x20) >> 5) & 0x01;
1005 if (val == val2) {
1006 pass++;
1007 } else {
1008 pass = 0;
1009 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x20) >> 5) & 0x01;
1010 }
1011 } while ((pass < 5) && (count++ < 0x10000));
1012
1013 return val & 1 ? 1 : 0;
1014 }
1015
1016 static void set_clock(void *i2c_priv, int clock)
1017 {
1018 struct ast_i2c_chan *i2c = i2c_priv;
1019 struct ast_private *ast = i2c->dev->dev_private;
1020 int i;
1021 u8 ujcrb7, jtemp;
1022
1023 for (i = 0; i < 0x10000; i++) {
1024 ujcrb7 = ((clock & 0x01) ? 0 : 1);
1025 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0xf4, ujcrb7);
1026 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x01);
1027 if (ujcrb7 == jtemp)
1028 break;
1029 }
1030 }
1031
1032 static void set_data(void *i2c_priv, int data)
1033 {
1034 struct ast_i2c_chan *i2c = i2c_priv;
1035 struct ast_private *ast = i2c->dev->dev_private;
1036 int i;
1037 u8 ujcrb7, jtemp;
1038
1039 for (i = 0; i < 0x10000; i++) {
1040 ujcrb7 = ((data & 0x01) ? 0 : 1) << 2;
1041 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0xf1, ujcrb7);
1042 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x04);
1043 if (ujcrb7 == jtemp)
1044 break;
1045 }
1046 }
1047
1048 static struct ast_i2c_chan *ast_i2c_create(struct drm_device *dev)
1049 {
1050 struct ast_i2c_chan *i2c;
1051 int ret;
1052
1053 i2c = kzalloc(sizeof(struct ast_i2c_chan), GFP_KERNEL);
1054 if (!i2c)
1055 return NULL;
1056
1057 i2c->adapter.owner = THIS_MODULE;
1058 i2c->adapter.class = I2C_CLASS_DDC;
1059 i2c->adapter.dev.parent = &dev->pdev->dev;
1060 i2c->dev = dev;
1061 i2c_set_adapdata(&i2c->adapter, i2c);
1062 snprintf(i2c->adapter.name, sizeof(i2c->adapter.name),
1063 "AST i2c bit bus");
1064 i2c->adapter.algo_data = &i2c->bit;
1065
1066 i2c->bit.udelay = 20;
1067 i2c->bit.timeout = 2;
1068 i2c->bit.data = i2c;
1069 i2c->bit.setsda = set_data;
1070 i2c->bit.setscl = set_clock;
1071 i2c->bit.getsda = get_data;
1072 i2c->bit.getscl = get_clock;
1073 ret = i2c_bit_add_bus(&i2c->adapter);
1074 if (ret) {
1075 DRM_ERROR("Failed to register bit i2c\n");
1076 goto out_free;
1077 }
1078
1079 return i2c;
1080 out_free:
1081 kfree(i2c);
1082 return NULL;
1083 }
1084
1085 static void ast_i2c_destroy(struct ast_i2c_chan *i2c)
1086 {
1087 if (!i2c)
1088 return;
1089 i2c_del_adapter(&i2c->adapter);
1090 kfree(i2c);
1091 }
1092
1093 static void ast_show_cursor(struct drm_crtc *crtc)
1094 {
1095 struct ast_private *ast = crtc->dev->dev_private;
1096 u8 jreg;
1097
1098 jreg = 0x2;
1099 /* enable ARGB cursor */
1100 jreg |= 1;
1101 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, jreg);
1102 }
1103
1104 static void ast_hide_cursor(struct drm_crtc *crtc)
1105 {
1106 struct ast_private *ast = crtc->dev->dev_private;
1107 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, 0x00);
1108 }
1109
1110 static u32 copy_cursor_image(u8 *src, u8 *dst, int width, int height)
1111 {
1112 union {
1113 u32 ul;
1114 u8 b[4];
1115 } srcdata32[2], data32;
1116 union {
1117 u16 us;
1118 u8 b[2];
1119 } data16;
1120 u32 csum = 0;
1121 s32 alpha_dst_delta, last_alpha_dst_delta;
1122 u8 *srcxor, *dstxor;
1123 int i, j;
1124 u32 per_pixel_copy, two_pixel_copy;
1125
1126 alpha_dst_delta = AST_MAX_HWC_WIDTH << 1;
1127 last_alpha_dst_delta = alpha_dst_delta - (width << 1);
1128
1129 srcxor = src;
1130 dstxor = (u8 *)dst + last_alpha_dst_delta + (AST_MAX_HWC_HEIGHT - height) * alpha_dst_delta;
1131 per_pixel_copy = width & 1;
1132 two_pixel_copy = width >> 1;
1133
1134 for (j = 0; j < height; j++) {
1135 for (i = 0; i < two_pixel_copy; i++) {
1136 srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
1137 srcdata32[1].ul = *((u32 *)(srcxor + 4)) & 0xf0f0f0f0;
1138 data32.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
1139 data32.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
1140 data32.b[2] = srcdata32[1].b[1] | (srcdata32[1].b[0] >> 4);
1141 data32.b[3] = srcdata32[1].b[3] | (srcdata32[1].b[2] >> 4);
1142
1143 writel(data32.ul, dstxor);
1144 csum += data32.ul;
1145
1146 dstxor += 4;
1147 srcxor += 8;
1148
1149 }
1150
1151 for (i = 0; i < per_pixel_copy; i++) {
1152 srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
1153 data16.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
1154 data16.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
1155 writew(data16.us, dstxor);
1156 csum += (u32)data16.us;
1157
1158 dstxor += 2;
1159 srcxor += 4;
1160 }
1161 dstxor += last_alpha_dst_delta;
1162 }
1163 return csum;
1164 }
1165
1166 static int ast_cursor_set(struct drm_crtc *crtc,
1167 struct drm_file *file_priv,
1168 uint32_t handle,
1169 uint32_t width,
1170 uint32_t height)
1171 {
1172 struct ast_private *ast = crtc->dev->dev_private;
1173 struct ast_crtc *ast_crtc = to_ast_crtc(crtc);
1174 struct drm_gem_object *obj;
1175 struct ast_bo *bo;
1176 uint64_t gpu_addr;
1177 u32 csum;
1178 int ret;
1179 struct ttm_bo_kmap_obj uobj_map;
1180 u8 *src, *dst;
1181 bool src_isiomem, dst_isiomem;
1182 if (!handle) {
1183 ast_hide_cursor(crtc);
1184 return 0;
1185 }
1186
1187 if (width > AST_MAX_HWC_WIDTH || height > AST_MAX_HWC_HEIGHT)
1188 return -EINVAL;
1189
1190 obj = drm_gem_object_lookup(file_priv, handle);
1191 if (!obj) {
1192 DRM_ERROR("Cannot find cursor object %x for crtc\n", handle);
1193 return -ENOENT;
1194 }
1195 bo = gem_to_ast_bo(obj);
1196
1197 ret = ast_bo_reserve(bo, false);
1198 if (ret)
1199 goto fail;
1200
1201 ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &uobj_map);
1202
1203 src = ttm_kmap_obj_virtual(&uobj_map, &src_isiomem);
1204 dst = ttm_kmap_obj_virtual(&ast->cache_kmap, &dst_isiomem);
1205
1206 if (src_isiomem == true)
1207 DRM_ERROR("src cursor bo should be in main memory\n");
1208 if (dst_isiomem == false)
1209 DRM_ERROR("dst bo should be in VRAM\n");
1210
1211 dst += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor;
1212
1213 /* do data transfer to cursor cache */
1214 csum = copy_cursor_image(src, dst, width, height);
1215
1216 /* write checksum + signature */
1217 ttm_bo_kunmap(&uobj_map);
1218 ast_bo_unreserve(bo);
1219 {
1220 u8 *dst = (u8 *)ast->cache_kmap.virtual + (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor + AST_HWC_SIZE;
1221 writel(csum, dst);
1222 writel(width, dst + AST_HWC_SIGNATURE_SizeX);
1223 writel(height, dst + AST_HWC_SIGNATURE_SizeY);
1224 writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTX);
1225 writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTY);
1226
1227 /* set pattern offset */
1228 gpu_addr = ast->cursor_cache_gpu_addr;
1229 gpu_addr += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor;
1230 gpu_addr >>= 3;
1231 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc8, gpu_addr & 0xff);
1232 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc9, (gpu_addr >> 8) & 0xff);
1233 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xca, (gpu_addr >> 16) & 0xff);
1234 }
1235 ast_crtc->cursor_width = width;
1236 ast_crtc->cursor_height = height;
1237 ast_crtc->offset_x = AST_MAX_HWC_WIDTH - width;
1238 ast_crtc->offset_y = AST_MAX_HWC_WIDTH - height;
1239
1240 ast->next_cursor = (ast->next_cursor + 1) % AST_DEFAULT_HWC_NUM;
1241
1242 ast_show_cursor(crtc);
1243
1244 drm_gem_object_put_unlocked(obj);
1245 return 0;
1246 fail:
1247 drm_gem_object_put_unlocked(obj);
1248 return ret;
1249 }
1250
1251 static 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 = (u8 *)ast->cache_kmap.virtual + (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor + AST_HWC_SIZE;
1260 writel(x, sig + AST_HWC_SIGNATURE_X);
1261 writel(y, sig + AST_HWC_SIGNATURE_Y);
1262
1263 x_offset = ast_crtc->offset_x;
1264 y_offset = ast_crtc->offset_y;
1265 if (x < 0) {
1266 x_offset = (-x) + ast_crtc->offset_x;
1267 x = 0;
1268 }
1269
1270 if (y < 0) {
1271 y_offset = (-y) + ast_crtc->offset_y;
1272 y = 0;
1273 }
1274 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc2, x_offset);
1275 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc3, y_offset);
1276 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc4, (x & 0xff));
1277 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc5, ((x >> 8) & 0x0f));
1278 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc6, (y & 0xff));
1279 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc7, ((y >> 8) & 0x07));
1280
1281 /* dummy write to fire HWC */
1282 ast_show_cursor(crtc);
1283
1284 return 0;
1285 }
Linux with added FPC-III support