xorg_crtc.c revision be0665b461c776e2c4444330a865134e53f3d121 
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    /* Only set gamma when needed, to avoid unneeded delays. */
137#if defined(XF86_CRTC_VERSION) && XF86_CRTC_VERSION >= 3
138    if (!crtc->active && crtc->version >= 3)
139	crtc->funcs->gamma_set(crtc, crtc->gamma_red, crtc->gamma_green,
140			       crtc->gamma_blue, crtc->gamma_size);
141    crtc->active = TRUE;
142#endif
143
144    crtc->x = x;
145    crtc->y = y;
146    crtc->mode = *mode;
147    crtc->rotation = rotation;
148
149    return TRUE;
150}
151
152static void
153crtc_gamma_set(xf86CrtcPtr crtc, CARD16 * red, CARD16 * green, CARD16 * blue,
154	       int size)
155{
156    modesettingPtr ms = modesettingPTR(crtc->scrn);
157    struct crtc_private *crtcp = crtc->driver_private;
158
159    drmModeCrtcSetGamma(ms->fd, crtcp->drm_crtc->crtc_id, size, red, green, blue);
160}
161
162#if 0 /* Implement and enable to enable rotation and reflection. */
163static void *
164crtc_shadow_allocate(xf86CrtcPtr crtc, int width, int height)
165{
166    /* ScrnInfoPtr pScrn = crtc->scrn; */
167
168    return NULL;
169}
170
171static PixmapPtr
172crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
173{
174    /* ScrnInfoPtr pScrn = crtc->scrn; */
175
176    return NULL;
177}
178
179static void
180crtc_shadow_destroy(xf86CrtcPtr crtc, PixmapPtr rotate_pixmap, void *data)
181{
182    /* ScrnInfoPtr pScrn = crtc->scrn; */
183}
184
185#endif
186
187/*
188 * Cursor functions
189 */
190
191static void
192crtc_set_cursor_colors(xf86CrtcPtr crtc, int bg, int fg)
193{
194    /* XXX: See if this one is needed, as we only support ARGB cursors */
195}
196
197static void
198crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y)
199{
200    modesettingPtr ms = modesettingPTR(crtc->scrn);
201    struct crtc_private *crtcp = crtc->driver_private;
202
203    drmModeMoveCursor(ms->fd, crtcp->drm_crtc->crtc_id, x, y);
204}
205
206static void
207crtc_load_cursor_argb_ga3d(xf86CrtcPtr crtc, CARD32 * image)
208{
209    unsigned char *ptr;
210    modesettingPtr ms = modesettingPTR(crtc->scrn);
211    struct crtc_private *crtcp = crtc->driver_private;
212    struct pipe_transfer *transfer;
213
214    if (!crtcp->cursor_tex) {
215	struct pipe_resource templat;
216	struct winsys_handle whandle;
217
218	memset(&templat, 0, sizeof(templat));
219	templat.bind |= PIPE_BIND_RENDER_TARGET;
220	templat.bind |= PIPE_BIND_SCANOUT;
221	templat.target = PIPE_TEXTURE_2D;
222	templat.last_level = 0;
223	templat.depth0 = 1;
224	templat.array_size = 1;
225	templat.format = PIPE_FORMAT_B8G8R8A8_UNORM;
226	templat.width0 = 64;
227	templat.height0 = 64;
228
229	memset(&whandle, 0, sizeof(whandle));
230	whandle.type = DRM_API_HANDLE_TYPE_KMS;
231
232	crtcp->cursor_tex = ms->screen->resource_create(ms->screen,
233						       &templat);
234	ms->screen->resource_get_handle(ms->screen, crtcp->cursor_tex, &whandle);
235
236	crtcp->cursor_handle = whandle.handle;
237    }
238
239    transfer = pipe_get_transfer(ms->ctx, crtcp->cursor_tex,
240                                 0, 0,
241                                 PIPE_TRANSFER_WRITE,
242                                 0, 0, 64, 64);
243    ptr = ms->ctx->transfer_map(ms->ctx, transfer);
244    util_copy_rect(ptr, crtcp->cursor_tex->format,
245		   transfer->stride, 0, 0,
246		   64, 64, (void*)image, 64 * 4, 0, 0);
247    ms->ctx->transfer_unmap(ms->ctx, transfer);
248    ms->ctx->transfer_destroy(ms->ctx, transfer);
249
250    if (crtc->cursor_shown)
251	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
252			 crtcp->cursor_handle, 64, 64);
253}
254
255#if HAVE_LIBKMS
256static void
257crtc_load_cursor_argb_kms(xf86CrtcPtr crtc, CARD32 * image)
258{
259    modesettingPtr ms = modesettingPTR(crtc->scrn);
260    struct crtc_private *crtcp = crtc->driver_private;
261    unsigned char *ptr;
262
263    if (!crtcp->cursor_bo) {
264	unsigned attr[8];
265
266	attr[0] = KMS_BO_TYPE;
267#ifdef KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8
268	attr[1] = KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8;
269#else
270	attr[1] = KMS_BO_TYPE_CURSOR;
271#endif
272	attr[2] = KMS_WIDTH;
273	attr[3] = 64;
274	attr[4] = KMS_HEIGHT;
275	attr[5] = 64;
276	attr[6] = 0;
277
278        if (kms_bo_create(ms->kms, attr, &crtcp->cursor_bo))
279	   return;
280
281	if (kms_bo_get_prop(crtcp->cursor_bo, KMS_HANDLE,
282			    &crtcp->cursor_handle))
283	    goto err_bo_destroy;
284    }
285
286    kms_bo_map(crtcp->cursor_bo, (void**)&ptr);
287    memcpy(ptr, image, 64*64*4);
288    kms_bo_unmap(crtcp->cursor_bo);
289
290    if (crtc->cursor_shown)
291	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
292			 crtcp->cursor_handle, 64, 64);
293
294    return;
295
296err_bo_destroy:
297    kms_bo_destroy(&crtcp->cursor_bo);
298}
299#endif
300
301static void
302crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
303{
304    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
305    modesettingPtr ms = modesettingPTR(crtc->scrn);
306
307    /* Older X servers have cursor reference counting bugs leading to use of
308     * freed memory and consequently random crashes. Should be fixed as of
309     * xserver 1.8, but this workaround shouldn't hurt anyway.
310     */
311    if (config->cursor)
312       config->cursor->refcnt++;
313
314    if (ms->cursor)
315       FreeCursor(ms->cursor, None);
316
317    ms->cursor = config->cursor;
318
319    if (ms->screen)
320	crtc_load_cursor_argb_ga3d(crtc, image);
321#ifdef HAVE_LIBKMS
322    else if (ms->kms)
323	crtc_load_cursor_argb_kms(crtc, image);
324#endif
325}
326
327static void
328crtc_show_cursor(xf86CrtcPtr crtc)
329{
330    modesettingPtr ms = modesettingPTR(crtc->scrn);
331    struct crtc_private *crtcp = crtc->driver_private;
332
333    if (crtcp->cursor_tex || crtcp->cursor_bo)
334	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
335			 crtcp->cursor_handle, 64, 64);
336}
337
338static void
339crtc_hide_cursor(xf86CrtcPtr crtc)
340{
341    modesettingPtr ms = modesettingPTR(crtc->scrn);
342    struct crtc_private *crtcp = crtc->driver_private;
343
344    drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
345}
346
347/**
348 * Called at vt leave
349 */
350void
351xorg_crtc_cursor_destroy(xf86CrtcPtr crtc)
352{
353    struct crtc_private *crtcp = crtc->driver_private;
354
355    if (crtcp->cursor_tex)
356	pipe_resource_reference(&crtcp->cursor_tex, NULL);
357#ifdef HAVE_LIBKMS
358    if (crtcp->cursor_bo)
359	kms_bo_destroy(&crtcp->cursor_bo);
360#endif
361}
362
363/*
364 * Misc functions
365 */
366
367static void
368crtc_destroy(xf86CrtcPtr crtc)
369{
370    struct crtc_private *crtcp = crtc->driver_private;
371
372    xorg_crtc_cursor_destroy(crtc);
373
374    drmModeFreeCrtc(crtcp->drm_crtc);
375
376    free(crtcp);
377    crtc->driver_private = NULL;
378}
379
380static const xf86CrtcFuncsRec crtc_funcs = {
381    .dpms = crtc_dpms,
382    .set_mode_major = crtc_set_mode_major,
383
384    .set_cursor_colors = crtc_set_cursor_colors,
385    .set_cursor_position = crtc_set_cursor_position,
386    .show_cursor = crtc_show_cursor,
387    .hide_cursor = crtc_hide_cursor,
388    .load_cursor_argb = crtc_load_cursor_argb,
389
390    .shadow_create = NULL,
391    .shadow_allocate = NULL,
392    .shadow_destroy = NULL,
393
394    .gamma_set = crtc_gamma_set,
395    .destroy = crtc_destroy,
396};
397
398void
399xorg_crtc_init(ScrnInfoPtr pScrn)
400{
401    modesettingPtr ms = modesettingPTR(pScrn);
402    xf86CrtcPtr crtc;
403    drmModeResPtr res;
404    drmModeCrtcPtr drm_crtc = NULL;
405    struct crtc_private *crtcp;
406    int c;
407
408    res = drmModeGetResources(ms->fd);
409    if (res == 0) {
410	ErrorF("Failed drmModeGetResources %d\n", errno);
411	return;
412    }
413
414    for (c = 0; c < res->count_crtcs; c++) {
415	drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);
416
417	if (!drm_crtc)
418	    continue;
419
420	crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
421	if (crtc == NULL)
422	    goto out;
423
424	crtcp = calloc(1, sizeof(struct crtc_private));
425	if (!crtcp) {
426	    xf86CrtcDestroy(crtc);
427	    goto out;
428	}
429
430	crtcp->drm_crtc = drm_crtc;
431
432	crtc->driver_private = crtcp;
433    }
434
435  out:
436    drmModeFreeResources(res);
437}
438
439/* vim: set sw=4 ts=8 sts=4: */
440