xorg_crtc.c revision 2ab7a8a3ebf337aeed61166719adef9da4a1278a 
1/*
2 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 *
26 * Author: Alan Hourihane <alanh@tungstengraphics.com>
27 * Author: Jakob Bornecrantz <wallbraker@gmail.com>
28 *
29 */
30
31#include <unistd.h>
32#include <string.h>
33#include <assert.h>
34#include <stdlib.h>
35#include <math.h>
36#include <stdint.h>
37
38#include "xorg-server.h"
39#include <xf86.h>
40#include <xf86i2c.h>
41#include <xf86Crtc.h>
42#include <cursorstr.h>
43#include "xorg_tracker.h"
44#include "xf86Modes.h"
45
46#ifdef HAVE_XEXTPROTO_71
47#include <X11/extensions/dpmsconst.h>
48#else
49#define DPMS_SERVER
50#include <X11/extensions/dpms.h>
51#endif
52
53#include "state_tracker/drm_driver.h"
54#include "util/u_inlines.h"
55#include "util/u_rect.h"
56
57#ifdef HAVE_LIBKMS
58#include "libkms.h"
59#endif
60
61struct crtc_private
62{
63    drmModeCrtcPtr drm_crtc;
64
65    /* hwcursor */
66    struct pipe_resource *cursor_tex;
67    struct kms_bo *cursor_bo;
68
69    unsigned cursor_handle;
70};
71
72static void
73crtc_dpms(xf86CrtcPtr crtc, int mode)
74{
75    /* ScrnInfoPtr pScrn = crtc->scrn; */
76
77    switch (mode) {
78    case DPMSModeOn:
79    case DPMSModeStandby:
80    case DPMSModeSuspend:
81	break;
82    case DPMSModeOff:
83	break;
84    }
85}
86
87static Bool
88crtc_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
89		    Rotation rotation, int x, int y)
90{
91    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
92    modesettingPtr ms = modesettingPTR(crtc->scrn);
93    xf86OutputPtr output = NULL;
94    struct crtc_private *crtcp = crtc->driver_private;
95    drmModeCrtcPtr drm_crtc = crtcp->drm_crtc;
96    drmModeModeInfo drm_mode;
97    int i, ret;
98    unsigned int connector_id;
99
100    for (i = 0; i < config->num_output; output = NULL, i++) {
101	output = config->output[i];
102
103	if (output->crtc == crtc)
104	    break;
105    }
106
107    if (!output)
108	return FALSE;
109
110    connector_id = xorg_output_get_id(output);
111
112    drm_mode.clock = mode->Clock;
113    drm_mode.hdisplay = mode->HDisplay;
114    drm_mode.hsync_start = mode->HSyncStart;
115    drm_mode.hsync_end = mode->HSyncEnd;
116    drm_mode.htotal = mode->HTotal;
117    drm_mode.vdisplay = mode->VDisplay;
118    drm_mode.vsync_start = mode->VSyncStart;
119    drm_mode.vsync_end = mode->VSyncEnd;
120    drm_mode.vtotal = mode->VTotal;
121    drm_mode.flags = mode->Flags;
122    drm_mode.hskew = mode->HSkew;
123    drm_mode.vscan = mode->VScan;
124    drm_mode.vrefresh = mode->VRefresh;
125    if (!mode->name)
126	xf86SetModeDefaultName(mode);
127    strncpy(drm_mode.name, mode->name, DRM_DISPLAY_MODE_LEN - 1);
128    drm_mode.name[DRM_DISPLAY_MODE_LEN - 1] = '\0';
129
130    ret = drmModeSetCrtc(ms->fd, drm_crtc->crtc_id, ms->fb_id, x, y,
131			 &connector_id, 1, &drm_mode);
132
133    if (ret)
134	return FALSE;
135
136    crtc->x = x;
137    crtc->y = y;
138    crtc->mode = *mode;
139    crtc->rotation = rotation;
140
141    return TRUE;
142}
143
144static void
145crtc_gamma_set(xf86CrtcPtr crtc, CARD16 * red, CARD16 * green, CARD16 * blue,
146	       int size)
147{
148    /* XXX: hockup */
149}
150
151#if 0 /* Implement and enable to enable rotation and reflection. */
152static void *
153crtc_shadow_allocate(xf86CrtcPtr crtc, int width, int height)
154{
155    /* ScrnInfoPtr pScrn = crtc->scrn; */
156
157    return NULL;
158}
159
160static PixmapPtr
161crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
162{
163    /* ScrnInfoPtr pScrn = crtc->scrn; */
164
165    return NULL;
166}
167
168static void
169crtc_shadow_destroy(xf86CrtcPtr crtc, PixmapPtr rotate_pixmap, void *data)
170{
171    /* ScrnInfoPtr pScrn = crtc->scrn; */
172}
173
174#endif
175
176/*
177 * Cursor functions
178 */
179
180static void
181crtc_set_cursor_colors(xf86CrtcPtr crtc, int bg, int fg)
182{
183    /* XXX: See if this one is needed, as we only support ARGB cursors */
184}
185
186static void
187crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y)
188{
189    modesettingPtr ms = modesettingPTR(crtc->scrn);
190    struct crtc_private *crtcp = crtc->driver_private;
191
192    drmModeMoveCursor(ms->fd, crtcp->drm_crtc->crtc_id, x, y);
193}
194
195static void
196crtc_load_cursor_argb_ga3d(xf86CrtcPtr crtc, CARD32 * image)
197{
198    unsigned char *ptr;
199    modesettingPtr ms = modesettingPTR(crtc->scrn);
200    struct crtc_private *crtcp = crtc->driver_private;
201    struct pipe_transfer *transfer;
202
203    if (!crtcp->cursor_tex) {
204	struct pipe_resource templat;
205	struct winsys_handle whandle;
206
207	memset(&templat, 0, sizeof(templat));
208	templat.bind |= PIPE_BIND_RENDER_TARGET;
209	templat.bind |= PIPE_BIND_SCANOUT;
210	templat.target = PIPE_TEXTURE_2D;
211	templat.last_level = 0;
212	templat.depth0 = 1;
213	templat.format = PIPE_FORMAT_B8G8R8A8_UNORM;
214	templat.width0 = 64;
215	templat.height0 = 64;
216
217	memset(&whandle, 0, sizeof(whandle));
218	whandle.type = DRM_API_HANDLE_TYPE_KMS;
219
220	crtcp->cursor_tex = ms->screen->resource_create(ms->screen,
221						       &templat);
222	ms->screen->resource_get_handle(ms->screen, crtcp->cursor_tex, &whandle);
223
224	crtcp->cursor_handle = whandle.handle;
225    }
226
227    transfer = pipe_get_transfer(ms->ctx, crtcp->cursor_tex,
228                                         0, 0, 0,
229                                         PIPE_TRANSFER_WRITE,
230                                         0, 0, 64, 64);
231    ptr = ms->ctx->transfer_map(ms->ctx, transfer);
232    util_copy_rect(ptr, crtcp->cursor_tex->format,
233		   transfer->stride, 0, 0,
234		   64, 64, (void*)image, 64 * 4, 0, 0);
235    ms->ctx->transfer_unmap(ms->ctx, transfer);
236    ms->ctx->transfer_destroy(ms->ctx, transfer);
237
238    if (crtc->cursor_shown)
239	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
240			 crtcp->cursor_handle, 64, 64);
241}
242
243#if HAVE_LIBKMS
244static void
245crtc_load_cursor_argb_kms(xf86CrtcPtr crtc, CARD32 * image)
246{
247    modesettingPtr ms = modesettingPTR(crtc->scrn);
248    struct crtc_private *crtcp = crtc->driver_private;
249    unsigned char *ptr;
250
251    if (!crtcp->cursor_bo) {
252	unsigned attr[8];
253
254	attr[0] = KMS_BO_TYPE;
255#ifdef KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8
256	attr[1] = KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8;
257#else
258	attr[1] = KMS_BO_TYPE_CURSOR;
259#endif
260	attr[2] = KMS_WIDTH;
261	attr[3] = 64;
262	attr[4] = KMS_HEIGHT;
263	attr[5] = 64;
264	attr[6] = 0;
265
266        if (kms_bo_create(ms->kms, attr, &crtcp->cursor_bo))
267	   return;
268
269	if (kms_bo_get_prop(crtcp->cursor_bo, KMS_HANDLE,
270			    &crtcp->cursor_handle))
271	    goto err_bo_destroy;
272    }
273
274    kms_bo_map(crtcp->cursor_bo, (void**)&ptr);
275    memcpy(ptr, image, 64*64*4);
276    kms_bo_unmap(crtcp->cursor_bo);
277
278    if (crtc->cursor_shown)
279	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
280			 crtcp->cursor_handle, 64, 64);
281
282    return;
283
284err_bo_destroy:
285    kms_bo_destroy(&crtcp->cursor_bo);
286}
287#endif
288
289static void
290crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
291{
292    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
293    modesettingPtr ms = modesettingPTR(crtc->scrn);
294
295    /* Older X servers have cursor reference counting bugs leading to use of
296     * freed memory and consequently random crashes. Should be fixed as of
297     * xserver 1.8, but this workaround shouldn't hurt anyway.
298     */
299    if (config->cursor)
300       config->cursor->refcnt++;
301
302    if (ms->cursor)
303       FreeCursor(ms->cursor, None);
304
305    ms->cursor = config->cursor;
306
307    if (ms->screen)
308	crtc_load_cursor_argb_ga3d(crtc, image);
309#ifdef HAVE_LIBKMS
310    else if (ms->kms)
311	crtc_load_cursor_argb_kms(crtc, image);
312#endif
313}
314
315static void
316crtc_show_cursor(xf86CrtcPtr crtc)
317{
318    modesettingPtr ms = modesettingPTR(crtc->scrn);
319    struct crtc_private *crtcp = crtc->driver_private;
320
321    if (crtcp->cursor_tex || crtcp->cursor_bo)
322	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
323			 crtcp->cursor_handle, 64, 64);
324}
325
326static void
327crtc_hide_cursor(xf86CrtcPtr crtc)
328{
329    modesettingPtr ms = modesettingPTR(crtc->scrn);
330    struct crtc_private *crtcp = crtc->driver_private;
331
332    drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
333}
334
335/**
336 * Called at vt leave
337 */
338void
339xorg_crtc_cursor_destroy(xf86CrtcPtr crtc)
340{
341    struct crtc_private *crtcp = crtc->driver_private;
342
343    if (crtcp->cursor_tex)
344	pipe_resource_reference(&crtcp->cursor_tex, NULL);
345#ifdef HAVE_LIBKMS
346    if (crtcp->cursor_bo)
347	kms_bo_destroy(&crtcp->cursor_bo);
348#endif
349}
350
351/*
352 * Misc functions
353 */
354
355static void
356crtc_destroy(xf86CrtcPtr crtc)
357{
358    struct crtc_private *crtcp = crtc->driver_private;
359
360    xorg_crtc_cursor_destroy(crtc);
361
362    drmModeFreeCrtc(crtcp->drm_crtc);
363
364    free(crtcp);
365    crtc->driver_private = NULL;
366}
367
368static const xf86CrtcFuncsRec crtc_funcs = {
369    .dpms = crtc_dpms,
370    .set_mode_major = crtc_set_mode_major,
371
372    .set_cursor_colors = crtc_set_cursor_colors,
373    .set_cursor_position = crtc_set_cursor_position,
374    .show_cursor = crtc_show_cursor,
375    .hide_cursor = crtc_hide_cursor,
376    .load_cursor_argb = crtc_load_cursor_argb,
377
378    .shadow_create = NULL,
379    .shadow_allocate = NULL,
380    .shadow_destroy = NULL,
381
382    .gamma_set = crtc_gamma_set,
383    .destroy = crtc_destroy,
384};
385
386void
387xorg_crtc_init(ScrnInfoPtr pScrn)
388{
389    modesettingPtr ms = modesettingPTR(pScrn);
390    xf86CrtcPtr crtc;
391    drmModeResPtr res;
392    drmModeCrtcPtr drm_crtc = NULL;
393    struct crtc_private *crtcp;
394    int c;
395
396    res = drmModeGetResources(ms->fd);
397    if (res == 0) {
398	ErrorF("Failed drmModeGetResources %d\n", errno);
399	return;
400    }
401
402    for (c = 0; c < res->count_crtcs; c++) {
403	drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);
404
405	if (!drm_crtc)
406	    continue;
407
408	crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
409	if (crtc == NULL)
410	    goto out;
411
412	crtcp = calloc(1, sizeof(struct crtc_private));
413	if (!crtcp) {
414	    xf86CrtcDestroy(crtc);
415	    goto out;
416	}
417
418	crtcp->drm_crtc = drm_crtc;
419
420	crtc->driver_private = crtcp;
421    }
422
423  out:
424    drmModeFreeResources(res);
425}
426
427/* vim: set sw=4 ts=8 sts=4: */
428