xorg_crtc.c revision b2e94d05c9602e2814a513a51eed67d014b338f3 
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 "xorg_tracker.h"
43#include "xf86Modes.h"
44
45#ifdef HAVE_XEXTPROTO_71
46#include <X11/extensions/dpmsconst.h>
47#else
48#define DPMS_SERVER
49#include <X11/extensions/dpms.h>
50#endif
51
52#include "util/u_inlines.h"
53#include "util/u_rect.h"
54
55#ifdef HAVE_LIBKMS
56#include "libkms.h"
57#endif
58
59struct crtc_private
60{
61    drmModeCrtcPtr drm_crtc;
62
63    /* hwcursor */
64    struct pipe_texture *cursor_tex;
65    struct kms_bo *cursor_bo;
66
67    unsigned cursor_handle;
68};
69
70static void
71crtc_dpms(xf86CrtcPtr crtc, int mode)
72{
73    /* ScrnInfoPtr pScrn = crtc->scrn; */
74
75    switch (mode) {
76    case DPMSModeOn:
77    case DPMSModeStandby:
78    case DPMSModeSuspend:
79	break;
80    case DPMSModeOff:
81	break;
82    }
83}
84
85static Bool
86crtc_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
87		    Rotation rotation, int x, int y)
88{
89    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
90    modesettingPtr ms = modesettingPTR(crtc->scrn);
91    xf86OutputPtr output = NULL;
92    drmModeConnectorPtr drm_connector;
93    struct crtc_private *crtcp = crtc->driver_private;
94    drmModeCrtcPtr drm_crtc = crtcp->drm_crtc;
95    drmModeModeInfo drm_mode;
96    int i, ret;
97
98    for (i = 0; i < config->num_output; output = NULL, i++) {
99	output = config->output[i];
100
101	if (output->crtc == crtc)
102	    break;
103    }
104
105    if (!output)
106	return FALSE;
107
108    drm_connector = output->driver_private;
109
110    drm_mode.clock = mode->Clock;
111    drm_mode.hdisplay = mode->HDisplay;
112    drm_mode.hsync_start = mode->HSyncStart;
113    drm_mode.hsync_end = mode->HSyncEnd;
114    drm_mode.htotal = mode->HTotal;
115    drm_mode.vdisplay = mode->VDisplay;
116    drm_mode.vsync_start = mode->VSyncStart;
117    drm_mode.vsync_end = mode->VSyncEnd;
118    drm_mode.vtotal = mode->VTotal;
119    drm_mode.flags = mode->Flags;
120    drm_mode.hskew = mode->HSkew;
121    drm_mode.vscan = mode->VScan;
122    drm_mode.vrefresh = mode->VRefresh;
123    if (!mode->name)
124	xf86SetModeDefaultName(mode);
125    strncpy(drm_mode.name, mode->name, DRM_DISPLAY_MODE_LEN - 1);
126    drm_mode.name[DRM_DISPLAY_MODE_LEN - 1] = '\0';
127
128    ret = drmModeSetCrtc(ms->fd, drm_crtc->crtc_id, ms->fb_id, x, y,
129			 &drm_connector->connector_id, 1, &drm_mode);
130
131    if (ret)
132	return FALSE;
133
134    crtc->x = x;
135    crtc->y = y;
136    crtc->mode = *mode;
137    crtc->rotation = rotation;
138
139    return TRUE;
140}
141
142static void
143crtc_gamma_set(xf86CrtcPtr crtc, CARD16 * red, CARD16 * green, CARD16 * blue,
144	       int size)
145{
146    /* XXX: hockup */
147}
148
149static void *
150crtc_shadow_allocate(xf86CrtcPtr crtc, int width, int height)
151{
152    /* ScrnInfoPtr pScrn = crtc->scrn; */
153
154    return NULL;
155}
156
157static PixmapPtr
158crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
159{
160    /* ScrnInfoPtr pScrn = crtc->scrn; */
161
162    return NULL;
163}
164
165static void
166crtc_shadow_destroy(xf86CrtcPtr crtc, PixmapPtr rotate_pixmap, void *data)
167{
168    /* ScrnInfoPtr pScrn = crtc->scrn; */
169}
170
171/*
172 * Cursor functions
173 */
174
175static void
176crtc_set_cursor_colors(xf86CrtcPtr crtc, int bg, int fg)
177{
178    /* XXX: See if this one is needed, as we only support ARGB cursors */
179}
180
181static void
182crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y)
183{
184    modesettingPtr ms = modesettingPTR(crtc->scrn);
185    struct crtc_private *crtcp = crtc->driver_private;
186
187    drmModeMoveCursor(ms->fd, crtcp->drm_crtc->crtc_id, x, y);
188}
189
190static void
191crtc_load_cursor_argb_ga3d(xf86CrtcPtr crtc, CARD32 * image)
192{
193    unsigned char *ptr;
194    modesettingPtr ms = modesettingPTR(crtc->scrn);
195    struct crtc_private *crtcp = crtc->driver_private;
196    struct pipe_transfer *transfer;
197
198    if (!crtcp->cursor_tex) {
199	struct pipe_texture templat;
200	struct winsys_handle whandle;
201
202	memset(&templat, 0, sizeof(templat));
203	templat.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
204	templat.tex_usage |= PIPE_TEXTURE_USAGE_PRIMARY;
205	templat.target = PIPE_TEXTURE_2D;
206	templat.last_level = 0;
207	templat.depth0 = 1;
208	templat.format = PIPE_FORMAT_A8R8G8B8_UNORM;
209	templat.width0 = 64;
210	templat.height0 = 64;
211
212	memset(&whandle, 0, sizeof(whandle));
213	whandle.type = DRM_API_HANDLE_TYPE_KMS;
214
215	crtcp->cursor_tex = ms->screen->texture_create(ms->screen,
216						       &templat);
217	ms->screen->texture_get_handle(ms->screen, crtcp->cursor_tex, &whandle);
218
219	crtcp->cursor_handle = whandle.handle;
220    }
221
222    transfer = ms->screen->get_tex_transfer(ms->screen, crtcp->cursor_tex,
223					    0, 0, 0,
224					    PIPE_TRANSFER_WRITE,
225					    0, 0, 64, 64);
226    ptr = ms->screen->transfer_map(ms->screen, transfer);
227    util_copy_rect(ptr, crtcp->cursor_tex->format,
228		   transfer->stride, 0, 0,
229		   64, 64, (void*)image, 64 * 4, 0, 0);
230    ms->screen->transfer_unmap(ms->screen, transfer);
231    ms->screen->tex_transfer_destroy(transfer);
232}
233
234#if HAVE_LIBKMS
235static void
236crtc_load_cursor_argb_kms(xf86CrtcPtr crtc, CARD32 * image)
237{
238    modesettingPtr ms = modesettingPTR(crtc->scrn);
239    struct crtc_private *crtcp = crtc->driver_private;
240    unsigned char *ptr;
241
242    if (!crtcp->cursor_bo) {
243	unsigned attr[8];
244
245	attr[0] = KMS_BO_TYPE;
246#ifdef KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8
247	attr[1] = KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8;
248#else
249	attr[1] = KMS_BO_TYPE_CURSOR;
250#endif
251	attr[2] = KMS_WIDTH;
252	attr[3] = 64;
253	attr[4] = KMS_HEIGHT;
254	attr[5] = 64;
255	attr[6] = 0;
256
257        if (kms_bo_create(ms->kms, attr, &crtcp->cursor_bo))
258	   return;
259
260	if (kms_bo_get_prop(crtcp->cursor_bo, KMS_HANDLE,
261			    &crtcp->cursor_handle))
262	    goto err_bo_destroy;
263    }
264
265    kms_bo_map(crtcp->cursor_bo, (void**)&ptr);
266    memcpy(ptr, image, 64*64*4);
267    kms_bo_unmap(crtcp->cursor_bo);
268
269    return;
270
271err_bo_destroy:
272    kms_bo_destroy(&crtcp->cursor_bo);
273}
274#endif
275
276static void
277crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
278{
279    modesettingPtr ms = modesettingPTR(crtc->scrn);
280    if (ms->screen)
281	crtc_load_cursor_argb_ga3d(crtc, image);
282#ifdef HAVE_LIBKMS
283    else if (ms->kms)
284	crtc_load_cursor_argb_kms(crtc, image);
285#endif
286}
287
288static void
289crtc_show_cursor(xf86CrtcPtr crtc)
290{
291    modesettingPtr ms = modesettingPTR(crtc->scrn);
292    struct crtc_private *crtcp = crtc->driver_private;
293
294    if (crtcp->cursor_tex || crtcp->cursor_bo)
295	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
296			 crtcp->cursor_handle, 64, 64);
297}
298
299static void
300crtc_hide_cursor(xf86CrtcPtr crtc)
301{
302    modesettingPtr ms = modesettingPTR(crtc->scrn);
303    struct crtc_private *crtcp = crtc->driver_private;
304
305    drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
306}
307
308/**
309 * Called at vt leave
310 */
311void
312xorg_crtc_cursor_destroy(xf86CrtcPtr crtc)
313{
314    struct crtc_private *crtcp = crtc->driver_private;
315
316    if (crtcp->cursor_tex)
317	pipe_texture_reference(&crtcp->cursor_tex, NULL);
318#ifdef HAVE_LIBKMS
319    if (crtcp->cursor_bo)
320	kms_bo_destroy(&crtcp->cursor_bo);
321#endif
322}
323
324/*
325 * Misc functions
326 */
327
328static void
329crtc_destroy(xf86CrtcPtr crtc)
330{
331    struct crtc_private *crtcp = crtc->driver_private;
332
333    xorg_crtc_cursor_destroy(crtc);
334
335    drmModeFreeCrtc(crtcp->drm_crtc);
336
337    xfree(crtcp);
338    crtc->driver_private = NULL;
339}
340
341static const xf86CrtcFuncsRec crtc_funcs = {
342    .dpms = crtc_dpms,
343    .set_mode_major = crtc_set_mode_major,
344
345    .set_cursor_colors = crtc_set_cursor_colors,
346    .set_cursor_position = crtc_set_cursor_position,
347    .show_cursor = crtc_show_cursor,
348    .hide_cursor = crtc_hide_cursor,
349    .load_cursor_argb = crtc_load_cursor_argb,
350
351    .shadow_create = crtc_shadow_create,
352    .shadow_allocate = crtc_shadow_allocate,
353    .shadow_destroy = crtc_shadow_destroy,
354
355    .gamma_set = crtc_gamma_set,
356    .destroy = crtc_destroy,
357};
358
359void
360xorg_crtc_init(ScrnInfoPtr pScrn)
361{
362    modesettingPtr ms = modesettingPTR(pScrn);
363    xf86CrtcPtr crtc;
364    drmModeResPtr res;
365    drmModeCrtcPtr drm_crtc = NULL;
366    struct crtc_private *crtcp;
367    int c;
368
369    res = drmModeGetResources(ms->fd);
370    if (res == 0) {
371	ErrorF("Failed drmModeGetResources %d\n", errno);
372	return;
373    }
374
375    for (c = 0; c < res->count_crtcs; c++) {
376	drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);
377
378	if (!drm_crtc)
379	    continue;
380
381	crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
382	if (crtc == NULL)
383	    goto out;
384
385	crtcp = xcalloc(1, sizeof(struct crtc_private));
386	if (!crtcp) {
387	    xf86CrtcDestroy(crtc);
388	    goto out;
389	}
390
391	crtcp->drm_crtc = drm_crtc;
392
393	crtc->driver_private = crtcp;
394    }
395
396  out:
397    drmModeFreeResources(res);
398}
399
400/* vim: set sw=4 ts=8 sts=4: */
401