2 * Copyright 2012 Red Hat Inc.
3 * Parts based on xf86-video-ast
4 * Copyright (c) 2005 ASPEED Technology Inc.
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:
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.
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
31 #include <linux/export.h>
32 #include <linux/pci.h>
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>
42 #include "ast_tables.h"
44 static struct ast_i2c_chan *ast_i2c_create(struct drm_device *dev);
45 static void ast_i2c_destroy(struct ast_i2c_chan *i2c);
46 static int ast_cursor_set(struct drm_crtc *crtc,
47 struct drm_file *file_priv,
51 static int ast_cursor_move(struct drm_crtc *crtc,
54 static inline void ast_load_palette_index(struct ast_private *ast,
55 u8 index, u8 red, u8 green,
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);
68 static void ast_crtc_load_lut(struct drm_crtc *crtc)
70 struct ast_private *ast = crtc->dev->dev_private;
77 r = crtc->gamma_store;
78 g = r + crtc->gamma_size;
79 b = g + crtc->gamma_size;
81 for (i = 0; i < 256; i++)
82 ast_load_palette_index(ast, i, *r++ >> 8, *g++ >> 8, *b++ >> 8);
85 static 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)
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;
96 switch (fb->format->cpp[0] * 8) {
98 vbios_mode->std_table = &vbios_stdtable[VGAModeIndex];
99 color_index = VGAModeIndex - 1;
102 vbios_mode->std_table = &vbios_stdtable[HiCModeIndex];
103 color_index = HiCModeIndex;
107 vbios_mode->std_table = &vbios_stdtable[TrueCModeIndex];
108 color_index = TrueCModeIndex;
114 switch (crtc->mode.crtc_hdisplay) {
116 vbios_mode->enh_table = &res_640x480[refresh_rate_index];
119 vbios_mode->enh_table = &res_800x600[refresh_rate_index];
122 vbios_mode->enh_table = &res_1024x768[refresh_rate_index];
125 if (crtc->mode.crtc_vdisplay == 800)
126 vbios_mode->enh_table = &res_1280x800[refresh_rate_index];
128 vbios_mode->enh_table = &res_1280x1024[refresh_rate_index];
131 vbios_mode->enh_table = &res_1360x768[refresh_rate_index];
134 vbios_mode->enh_table = &res_1440x900[refresh_rate_index];
137 if (crtc->mode.crtc_vdisplay == 900)
138 vbios_mode->enh_table = &res_1600x900[refresh_rate_index];
140 vbios_mode->enh_table = &res_1600x1200[refresh_rate_index];
143 vbios_mode->enh_table = &res_1680x1050[refresh_rate_index];
146 if (crtc->mode.crtc_vdisplay == 1080)
147 vbios_mode->enh_table = &res_1920x1080[refresh_rate_index];
149 vbios_mode->enh_table = &res_1920x1200[refresh_rate_index];
155 refresh_rate = drm_mode_vrefresh(mode);
156 check_sync = vbios_mode->enh_table->flags & WideScreenMode;
158 const struct ast_vbios_enhtable *loop = vbios_mode->enh_table;
160 while (loop->refresh_rate != 0xff) {
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)))) {
173 if (loop->refresh_rate <= refresh_rate
174 && (!best || loop->refresh_rate > best->refresh_rate))
178 if (best || !check_sync)
183 vbios_mode->enh_table = best;
185 hborder = (vbios_mode->enh_table->flags & HBorder) ? 8 : 0;
186 vborder = (vbios_mode->enh_table->flags & VBorder) ? 8 : 0;
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);
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);
206 refresh_rate_index = vbios_mode->enh_table->refresh_rate_index;
207 mode_id = vbios_mode->enh_table->mode_id;
209 if (ast->chip == AST1180) {
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);
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);
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);
234 static void ast_set_std_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
235 struct ast_vbios_mode_info *vbios_mode)
237 struct ast_private *ast = crtc->dev->dev_private;
238 const struct ast_vbios_stdtable *stdtable;
242 stdtable = vbios_mode->std_table;
244 jreg = stdtable->misc;
245 ast_io_write8(ast, AST_IO_MISC_PORT_WRITE, jreg);
248 ast_set_index_reg(ast, AST_IO_SEQ_PORT, 0x00, 0x03);
249 for (i = 0; i < 4; i++) {
250 jreg = stdtable->seq[i];
253 ast_set_index_reg(ast, AST_IO_SEQ_PORT, (i + 1) , jreg);
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]);
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);
268 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x14);
269 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x00);
271 jreg = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
272 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x20);
275 for (i = 0; i < 9; i++)
276 ast_set_index_reg(ast, AST_IO_GR_PORT, i, stdtable->gr[i]);
279 static void ast_set_crtc_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
280 struct ast_vbios_mode_info *vbios_mode)
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;
286 if ((ast->chip == AST2500) &&
287 (vbios_mode->enh_table->flags & AST2500PreCatchCRT))
290 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x00);
292 temp = (mode->crtc_htotal >> 3) - 5;
294 jregAC |= 0x01; /* HT D[8] */
295 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x00, 0x00, temp);
297 temp = (mode->crtc_hdisplay >> 3) - 1;
299 jregAC |= 0x04; /* HDE D[8] */
300 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x01, 0x00, temp);
302 temp = (mode->crtc_hblank_start >> 3) - 1;
304 jregAC |= 0x10; /* HBS D[8] */
305 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x02, 0x00, temp);
307 temp = ((mode->crtc_hblank_end >> 3) - 1) & 0x7f;
309 jreg05 |= 0x80; /* HBE D[5] */
311 jregAD |= 0x01; /* HBE D[5] */
312 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x03, 0xE0, (temp & 0x1f));
314 temp = ((mode->crtc_hsync_start-precache) >> 3) - 1;
316 jregAC |= 0x40; /* HRS D[5] */
317 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x04, 0x00, temp);
319 temp = (((mode->crtc_hsync_end-precache) >> 3) - 1) & 0x3f;
321 jregAD |= 0x04; /* HRE D[5] */
322 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x05, 0x60, (u8)((temp & 0x1f) | jreg05));
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);
328 temp = (mode->crtc_vtotal) - 2;
335 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x06, 0x00, temp);
337 temp = (mode->crtc_vsync_start) - 1;
344 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x10, 0x00, temp);
346 temp = (mode->crtc_vsync_end - 1) & 0x3f;
351 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x70, temp & 0xf);
353 temp = mode->crtc_vdisplay - 1;
360 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x12, 0x00, temp);
362 temp = mode->crtc_vblank_start - 1;
369 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x15, 0x00, temp);
371 temp = mode->crtc_vblank_end - 1;
374 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x16, 0x00, temp);
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));
381 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0x3f, 0x80);
383 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0x3f, 0x00);
385 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x80);
388 static void ast_set_offset_reg(struct drm_crtc *crtc)
390 struct ast_private *ast = crtc->dev->dev_private;
391 const struct drm_framebuffer *fb = crtc->primary->fb;
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);
400 static void ast_set_dclk_reg(struct drm_device *dev, struct drm_display_mode *mode,
401 struct ast_vbios_mode_info *vbios_mode)
403 struct ast_private *ast = dev->dev_private;
404 const struct ast_vbios_dclk_info *clk_info;
406 if (ast->chip == AST2500)
407 clk_info = &dclk_table_ast2500[vbios_mode->enh_table->dclk_index];
409 clk_info = &dclk_table[vbios_mode->enh_table->dclk_index];
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));
418 static void ast_set_ext_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
419 struct ast_vbios_mode_info *vbios_mode)
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;
425 switch (fb->format->cpp[0] * 8) {
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);
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);
460 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x2f);
461 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x1f);
465 static void ast_set_sync_reg(struct drm_device *dev, struct drm_display_mode *mode,
466 struct ast_vbios_mode_info *vbios_mode)
468 struct ast_private *ast = dev->dev_private;
471 jreg = ast_io_read8(ast, AST_IO_MISC_PORT_READ);
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);
478 static bool ast_set_dac_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
479 struct ast_vbios_mode_info *vbios_mode)
481 const struct drm_framebuffer *fb = crtc->primary->fb;
483 switch (fb->format->cpp[0] * 8) {
492 static void ast_set_start_address_crt1(struct drm_crtc *crtc, unsigned offset)
494 struct ast_private *ast = crtc->dev->dev_private;
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));
504 static void ast_crtc_dpms(struct drm_crtc *crtc, int mode)
506 struct ast_private *ast = crtc->dev->dev_private;
508 if (ast->chip == AST1180)
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);
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);
528 static int ast_crtc_do_set_base(struct drm_crtc *crtc,
529 struct drm_framebuffer *fb,
530 int x, int y, int atomic)
532 struct drm_gem_vram_object *gbo;
537 gbo = drm_gem_vram_of_gem(fb->obj[0]);
538 drm_gem_vram_unpin(gbo);
541 gbo = drm_gem_vram_of_gem(crtc->primary->fb->obj[0]);
543 ret = drm_gem_vram_pin(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM);
546 gpu_addr = drm_gem_vram_offset(gbo);
549 goto err_drm_gem_vram_unpin;
552 ast_set_offset_reg(crtc);
553 ast_set_start_address_crt1(crtc, (u32)gpu_addr);
557 err_drm_gem_vram_unpin:
558 drm_gem_vram_unpin(gbo);
562 static int ast_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
563 struct drm_framebuffer *old_fb)
565 return ast_crtc_do_set_base(crtc, old_fb, x, y, 0);
568 static int ast_crtc_mode_set(struct drm_crtc *crtc,
569 struct drm_display_mode *mode,
570 struct drm_display_mode *adjusted_mode,
572 struct drm_framebuffer *old_fb)
574 struct drm_device *dev = crtc->dev;
575 struct ast_private *ast = crtc->dev->dev_private;
576 struct ast_vbios_mode_info vbios_mode;
578 if (ast->chip == AST1180) {
579 DRM_ERROR("AST 1180 modesetting not supported\n");
583 ret = ast_get_vbios_mode_info(crtc, mode, adjusted_mode, &vbios_mode);
588 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa1, 0x06);
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);
598 ast_crtc_mode_set_base(crtc, x, y, old_fb);
603 static void ast_crtc_disable(struct drm_crtc *crtc)
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]);
612 drm_gem_vram_unpin(gbo);
614 crtc->primary->fb = NULL;
617 static void ast_crtc_prepare(struct drm_crtc *crtc)
622 static void ast_crtc_commit(struct drm_crtc *crtc)
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);
630 static 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,
640 static void ast_crtc_reset(struct drm_crtc *crtc)
645 static 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)
649 ast_crtc_load_lut(crtc);
655 static void ast_crtc_destroy(struct drm_crtc *crtc)
657 drm_crtc_cleanup(crtc);
661 static 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,
670 static int ast_crtc_init(struct drm_device *dev)
672 struct ast_crtc *crtc;
674 crtc = kzalloc(sizeof(struct ast_crtc), GFP_KERNEL);
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);
684 static void ast_encoder_destroy(struct drm_encoder *encoder)
686 drm_encoder_cleanup(encoder);
691 static struct drm_encoder *ast_best_single_encoder(struct drm_connector *connector)
693 int enc_id = connector->encoder_ids[0];
694 /* pick the encoder ids */
696 return drm_encoder_find(connector->dev, NULL, enc_id);
701 static const struct drm_encoder_funcs ast_enc_funcs = {
702 .destroy = ast_encoder_destroy,
705 static void ast_encoder_dpms(struct drm_encoder *encoder, int mode)
710 static void ast_encoder_mode_set(struct drm_encoder *encoder,
711 struct drm_display_mode *mode,
712 struct drm_display_mode *adjusted_mode)
716 static void ast_encoder_prepare(struct drm_encoder *encoder)
721 static void ast_encoder_commit(struct drm_encoder *encoder)
727 static 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,
734 static int ast_encoder_init(struct drm_device *dev)
736 struct ast_encoder *ast_encoder;
738 ast_encoder = kzalloc(sizeof(struct ast_encoder), GFP_KERNEL);
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);
746 ast_encoder->base.possible_crtcs = 1;
750 static int ast_get_modes(struct drm_connector *connector)
752 struct ast_connector *ast_connector = to_ast_connector(connector);
753 struct ast_private *ast = connector->dev->dev_private;
757 if (ast->tx_chip_type == AST_TX_DP501) {
758 ast->dp501_maxclk = 0xff;
759 edid = kmalloc(128, GFP_KERNEL);
763 flags = ast_dp501_read_edid(connector->dev, (u8 *)edid);
765 ast->dp501_maxclk = ast_get_dp501_max_clk(connector->dev);
770 edid = drm_get_edid(connector, &ast_connector->i2c->adapter);
772 drm_connector_update_edid_property(&ast_connector->base, edid);
773 ret = drm_add_edid_modes(connector, edid);
777 drm_connector_update_edid_property(&ast_connector->base, NULL);
781 static enum drm_mode_status ast_mode_valid(struct drm_connector *connector,
782 struct drm_display_mode *mode)
784 struct ast_private *ast = connector->dev->dev_private;
785 int flags = MODE_NOMODE;
788 if (ast->support_wide_screen) {
789 if ((mode->hdisplay == 1680) && (mode->vdisplay == 1050))
791 if ((mode->hdisplay == 1280) && (mode->vdisplay == 800))
793 if ((mode->hdisplay == 1440) && (mode->vdisplay == 900))
795 if ((mode->hdisplay == 1360) && (mode->vdisplay == 768))
797 if ((mode->hdisplay == 1600) && (mode->vdisplay == 900))
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))
806 if ((mode->hdisplay == 1920) && (mode->vdisplay == 1200)) {
807 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff);
815 switch (mode->hdisplay) {
817 if (mode->vdisplay == 480) flags = MODE_OK;
820 if (mode->vdisplay == 600) flags = MODE_OK;
823 if (mode->vdisplay == 768) flags = MODE_OK;
826 if (mode->vdisplay == 1024) flags = MODE_OK;
829 if (mode->vdisplay == 1200) flags = MODE_OK;
838 static void ast_connector_destroy(struct drm_connector *connector)
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);
847 static 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,
853 static 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,
859 static int ast_connector_init(struct drm_device *dev)
861 struct ast_connector *ast_connector;
862 struct drm_connector *connector;
863 struct drm_encoder *encoder;
865 ast_connector = kzalloc(sizeof(struct ast_connector), GFP_KERNEL);
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");
874 drm_connector_init_with_ddc(dev, connector,
875 &ast_connector_funcs,
876 DRM_MODE_CONNECTOR_VGA,
877 &ast_connector->i2c->adapter);
879 drm_connector_helper_add(connector, &ast_connector_helper_funcs);
881 connector->interlace_allowed = 0;
882 connector->doublescan_allowed = 0;
884 drm_connector_register(connector);
886 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
888 encoder = list_first_entry(&dev->mode_config.encoder_list, struct drm_encoder, head);
889 drm_connector_attach_encoder(connector, encoder);
894 /* allocate cursor cache and pin at start of VRAM */
895 static int ast_cursor_init(struct drm_device *dev)
897 struct ast_private *ast = dev->dev_private;
900 struct drm_gem_object *obj;
901 struct drm_gem_vram_object *gbo;
905 size = (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE) * AST_DEFAULT_HWC_NUM;
907 ret = ast_gem_create(dev, size, true, &obj);
910 gbo = drm_gem_vram_of_gem(obj);
911 ret = drm_gem_vram_pin(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM);
914 gpu_addr = drm_gem_vram_offset(gbo);
916 drm_gem_vram_unpin(gbo);
921 /* kmap the object */
922 base = drm_gem_vram_kmap(gbo, true, NULL);
928 ast->cursor_cache = obj;
934 static void ast_cursor_fini(struct drm_device *dev)
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);
944 int ast_mode_init(struct drm_device *dev)
946 ast_cursor_init(dev);
948 ast_encoder_init(dev);
949 ast_connector_init(dev);
953 void ast_mode_fini(struct drm_device *dev)
955 ast_cursor_fini(dev);
958 static int get_clock(void *i2c_priv)
960 struct ast_i2c_chan *i2c = i2c_priv;
961 struct ast_private *ast = i2c->dev->dev_private;
962 uint32_t val, val2, count, pass;
966 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x10) >> 4) & 0x01;
968 val2 = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x10) >> 4) & 0x01;
973 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x10) >> 4) & 0x01;
975 } while ((pass < 5) && (count++ < 0x10000));
977 return val & 1 ? 1 : 0;
980 static int get_data(void *i2c_priv)
982 struct ast_i2c_chan *i2c = i2c_priv;
983 struct ast_private *ast = i2c->dev->dev_private;
984 uint32_t val, val2, count, pass;
988 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x20) >> 5) & 0x01;
990 val2 = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x20) >> 5) & 0x01;
995 val = (ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb7, 0x20) >> 5) & 0x01;
997 } while ((pass < 5) && (count++ < 0x10000));
999 return val & 1 ? 1 : 0;
1002 static void set_clock(void *i2c_priv, int clock)
1004 struct ast_i2c_chan *i2c = i2c_priv;
1005 struct ast_private *ast = i2c->dev->dev_private;
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)
1018 static void set_data(void *i2c_priv, int data)
1020 struct ast_i2c_chan *i2c = i2c_priv;
1021 struct ast_private *ast = i2c->dev->dev_private;
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)
1034 static struct ast_i2c_chan *ast_i2c_create(struct drm_device *dev)
1036 struct ast_i2c_chan *i2c;
1039 i2c = kzalloc(sizeof(struct ast_i2c_chan), GFP_KERNEL);
1043 i2c->adapter.owner = THIS_MODULE;
1044 i2c->adapter.class = I2C_CLASS_DDC;
1045 i2c->adapter.dev.parent = &dev->pdev->dev;
1047 i2c_set_adapdata(&i2c->adapter, i2c);
1048 snprintf(i2c->adapter.name, sizeof(i2c->adapter.name),
1050 i2c->adapter.algo_data = &i2c->bit;
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);
1061 DRM_ERROR("Failed to register bit i2c\n");
1071 static void ast_i2c_destroy(struct ast_i2c_chan *i2c)
1075 i2c_del_adapter(&i2c->adapter);
1079 static void ast_show_cursor(struct drm_crtc *crtc)
1081 struct ast_private *ast = crtc->dev->dev_private;
1085 /* enable ARGB cursor */
1087 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, jreg);
1090 static void ast_hide_cursor(struct drm_crtc *crtc)
1092 struct ast_private *ast = crtc->dev->dev_private;
1093 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, 0x00);
1096 static u32 copy_cursor_image(u8 *src, u8 *dst, int width, int height)
1101 } srcdata32[2], data32;
1107 s32 alpha_dst_delta, last_alpha_dst_delta;
1108 u8 *srcxor, *dstxor;
1110 u32 per_pixel_copy, two_pixel_copy;
1112 alpha_dst_delta = AST_MAX_HWC_WIDTH << 1;
1113 last_alpha_dst_delta = alpha_dst_delta - (width << 1);
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;
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);
1129 writel(data32.ul, dstxor);
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;
1147 dstxor += last_alpha_dst_delta;
1152 static int ast_cursor_set(struct drm_crtc *crtc,
1153 struct drm_file *file_priv,
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;
1169 ast_hide_cursor(crtc);
1173 if (width > AST_MAX_HWC_WIDTH || height > AST_MAX_HWC_HEIGHT)
1176 obj = drm_gem_object_lookup(file_priv, handle);
1178 DRM_ERROR("Cannot find cursor object %x for crtc\n", handle);
1181 gbo = drm_gem_vram_of_gem(obj);
1183 ret = drm_gem_vram_pin(gbo, 0);
1185 goto err_drm_gem_object_put_unlocked;
1186 src = drm_gem_vram_kmap(gbo, true, NULL);
1189 goto err_drm_gem_vram_unpin;
1192 dst = drm_gem_vram_kmap(drm_gem_vram_of_gem(ast->cursor_cache),
1196 goto err_drm_gem_vram_kunmap;
1198 dst_gpu = drm_gem_vram_offset(drm_gem_vram_of_gem(ast->cursor_cache));
1201 goto err_drm_gem_vram_kunmap;
1204 dst += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor;
1206 /* do data transfer to cursor cache */
1207 csum = copy_cursor_image(src, dst, width, height);
1209 /* write checksum + signature */
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;
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);
1221 /* set pattern offset */
1222 gpu_addr = (u64)dst_gpu;
1223 gpu_addr += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor;
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);
1229 ast_crtc->offset_x = AST_MAX_HWC_WIDTH - width;
1230 ast_crtc->offset_y = AST_MAX_HWC_WIDTH - height;
1232 ast->next_cursor = (ast->next_cursor + 1) % AST_DEFAULT_HWC_NUM;
1234 ast_show_cursor(crtc);
1236 drm_gem_vram_kunmap(gbo);
1237 drm_gem_vram_unpin(gbo);
1238 drm_gem_object_put_unlocked(obj);
1242 err_drm_gem_vram_kunmap:
1243 drm_gem_vram_kunmap(gbo);
1244 err_drm_gem_vram_unpin:
1245 drm_gem_vram_unpin(gbo);
1246 err_drm_gem_object_put_unlocked:
1247 drm_gem_object_put_unlocked(obj);
1251 static int ast_cursor_move(struct drm_crtc *crtc,
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;
1259 sig = drm_gem_vram_kmap(drm_gem_vram_of_gem(ast->cursor_cache),
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);
1265 x_offset = ast_crtc->offset_x;
1266 y_offset = ast_crtc->offset_y;
1268 x_offset = (-x) + ast_crtc->offset_x;
1273 y_offset = (-y) + ast_crtc->offset_y;
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));
1283 /* dummy write to fire HWC */
1284 ast_show_cursor(crtc);