xorg_crtc.c revision 4c7001462607e6e99e474d6271dd481d3f8f201c 
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.array_size = 1;
214	templat.format = PIPE_FORMAT_B8G8R8A8_UNORM;
215	templat.width0 = 64;
216	templat.height0 = 64;
217
218	memset(&whandle, 0, sizeof(whandle));
219	whandle.type = DRM_API_HANDLE_TYPE_KMS;
220
221	crtcp->cursor_tex = ms->screen->resource_create(ms->screen,
222						       &templat);
223	ms->screen->resource_get_handle(ms->screen, crtcp->cursor_tex, &whandle);
224
225	crtcp->cursor_handle = whandle.handle;
226    }
227
228    transfer = pipe_get_transfer(ms->ctx, crtcp->cursor_tex,
229                                 0, 0,
230                                 PIPE_TRANSFER_WRITE,
231                                 0, 0, 64, 64);
232    ptr = ms->ctx->transfer_map(ms->ctx, transfer);
233    util_copy_rect(ptr, crtcp->cursor_tex->format,
234		   transfer->stride, 0, 0,
235		   64, 64, (void*)image, 64 * 4, 0, 0);
236    ms->ctx->transfer_unmap(ms->ctx, transfer);
237    ms->ctx->transfer_destroy(ms->ctx, transfer);
238
239    if (crtc->cursor_shown)
240	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
241			 crtcp->cursor_handle, 64, 64);
242}
243
244#if HAVE_LIBKMS
245static void
246crtc_load_cursor_argb_kms(xf86CrtcPtr crtc, CARD32 * image)
247{
248    modesettingPtr ms = modesettingPTR(crtc->scrn);
249    struct crtc_private *crtcp = crtc->driver_private;
250    unsigned char *ptr;
251
252    if (!crtcp->cursor_bo) {
253	unsigned attr[8];
254
255	attr[0] = KMS_BO_TYPE;
256#ifdef KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8
257	attr[1] = KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8;
258#else
259	attr[1] = KMS_BO_TYPE_CURSOR;
260#endif
261	attr[2] = KMS_WIDTH;
262	attr[3] = 64;
263	attr[4] = KMS_HEIGHT;
264	attr[5] = 64;
265	attr[6] = 0;
266
267        if (kms_bo_create(ms->kms, attr, &crtcp->cursor_bo))
268	   return;
269
270	if (kms_bo_get_prop(crtcp->cursor_bo, KMS_HANDLE,
271			    &crtcp->cursor_handle))
272	    goto err_bo_destroy;
273    }
274
275    kms_bo_map(crtcp->cursor_bo, (void**)&ptr);
276    memcpy(ptr, image, 64*64*4);
277    kms_bo_unmap(crtcp->cursor_bo);
278
279    if (crtc->cursor_shown)
280	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
281			 crtcp->cursor_handle, 64, 64);
282
283    return;
284
285err_bo_destroy:
286    kms_bo_destroy(&crtcp->cursor_bo);
287}
288#endif
289
290static void
291crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
292{
293    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
294    modesettingPtr ms = modesettingPTR(crtc->scrn);
295
296    /* Older X servers have cursor reference counting bugs leading to use of
297     * freed memory and consequently random crashes. Should be fixed as of
298     * xserver 1.8, but this workaround shouldn't hurt anyway.
299     */
300    if (config->cursor)
301       config->cursor->refcnt++;
302
303    if (ms->cursor)
304       FreeCursor(ms->cursor, None);
305
306    ms->cursor = config->cursor;
307
308    if (ms->screen)
309	crtc_load_cursor_argb_ga3d(crtc, image);
310#ifdef HAVE_LIBKMS
311    else if (ms->kms)
312	crtc_load_cursor_argb_kms(crtc, image);
313#endif
314}
315
316static void
317crtc_show_cursor(xf86CrtcPtr crtc)
318{
319    modesettingPtr ms = modesettingPTR(crtc->scrn);
320    struct crtc_private *crtcp = crtc->driver_private;
321
322    if (crtcp->cursor_tex || crtcp->cursor_bo)
323	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
324			 crtcp->cursor_handle, 64, 64);
325}
326
327static void
328crtc_hide_cursor(xf86CrtcPtr crtc)
329{
330    modesettingPtr ms = modesettingPTR(crtc->scrn);
331    struct crtc_private *crtcp = crtc->driver_private;
332
333    drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
334}
335
336/**
337 * Called at vt leave
338 */
339void
340xorg_crtc_cursor_destroy(xf86CrtcPtr crtc)
341{
342    struct crtc_private *crtcp = crtc->driver_private;
343
344    if (crtcp->cursor_tex)
345	pipe_resource_reference(&crtcp->cursor_tex, NULL);
346#ifdef HAVE_LIBKMS
347    if (crtcp->cursor_bo)
348	kms_bo_destroy(&crtcp->cursor_bo);
349#endif
350}
351
352/*
353 * Misc functions
354 */
355
356static void
357crtc_destroy(xf86CrtcPtr crtc)
358{
359    struct crtc_private *crtcp = crtc->driver_private;
360
361    xorg_crtc_cursor_destroy(crtc);
362
363    drmModeFreeCrtc(crtcp->drm_crtc);
364
365    free(crtcp);
366    crtc->driver_private = NULL;
367}
368
369static const xf86CrtcFuncsRec crtc_funcs = {
370    .dpms = crtc_dpms,
371    .set_mode_major = crtc_set_mode_major,
372
373    .set_cursor_colors = crtc_set_cursor_colors,
374    .set_cursor_position = crtc_set_cursor_position,
375    .show_cursor = crtc_show_cursor,
376    .hide_cursor = crtc_hide_cursor,
377    .load_cursor_argb = crtc_load_cursor_argb,
378
379    .shadow_create = NULL,
380    .shadow_allocate = NULL,
381    .shadow_destroy = NULL,
382
383    .gamma_set = crtc_gamma_set,
384    .destroy = crtc_destroy,
385};
386
387void
388xorg_crtc_init(ScrnInfoPtr pScrn)
389{
390    modesettingPtr ms = modesettingPTR(pScrn);
391    xf86CrtcPtr crtc;
392    drmModeResPtr res;
393    drmModeCrtcPtr drm_crtc = NULL;
394    struct crtc_private *crtcp;
395    int c;
396
397    res = drmModeGetResources(ms->fd);
398    if (res == 0) {
399	ErrorF("Failed drmModeGetResources %d\n", errno);
400	return;
401    }
402
403    for (c = 0; c < res->count_crtcs; c++) {
404	drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);
405
406	if (!drm_crtc)
407	    continue;
408
409	crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
410	if (crtc == NULL)
411	    goto out;
412
413	crtcp = calloc(1, sizeof(struct crtc_private));
414	if (!crtcp) {
415	    xf86CrtcDestroy(crtc);
416	    goto out;
417	}
418
419	crtcp->drm_crtc = drm_crtc;
420
421	crtc->driver_private = crtcp;
422    }
423
424  out:
425    drmModeFreeResources(res);
426}
427
428/* vim: set sw=4 ts=8 sts=4: */
429