xorg_crtc.c revision ee40b20e7aff5dc9d11230e991355c338a64da00 
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 "pipe/p_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    switch (mode) {
74    case DPMSModeOn:
75    case DPMSModeStandby:
76    case DPMSModeSuspend:
77	break;
78    case DPMSModeOff:
79	break;
80    }
81}
82
83static Bool
84crtc_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
85		    Rotation rotation, int x, int y)
86{
87    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
88    modesettingPtr ms = modesettingPTR(crtc->scrn);
89    xf86OutputPtr output = NULL;
90    drmModeConnectorPtr drm_connector;
91    struct crtc_private *crtcp = crtc->driver_private;
92    drmModeCrtcPtr drm_crtc = crtcp->drm_crtc;
93    drmModeModeInfo drm_mode;
94    int i, ret;
95
96    for (i = 0; i < config->num_output; output = NULL, i++) {
97	output = config->output[i];
98
99	if (output->crtc == crtc)
100	    break;
101    }
102
103    if (!output)
104	return FALSE;
105
106    drm_connector = output->driver_private;
107
108    drm_mode.clock = mode->Clock;
109    drm_mode.hdisplay = mode->HDisplay;
110    drm_mode.hsync_start = mode->HSyncStart;
111    drm_mode.hsync_end = mode->HSyncEnd;
112    drm_mode.htotal = mode->HTotal;
113    drm_mode.vdisplay = mode->VDisplay;
114    drm_mode.vsync_start = mode->VSyncStart;
115    drm_mode.vsync_end = mode->VSyncEnd;
116    drm_mode.vtotal = mode->VTotal;
117    drm_mode.flags = mode->Flags;
118    drm_mode.hskew = mode->HSkew;
119    drm_mode.vscan = mode->VScan;
120    drm_mode.vrefresh = mode->VRefresh;
121    if (!mode->name)
122	xf86SetModeDefaultName(mode);
123    strncpy(drm_mode.name, mode->name, DRM_DISPLAY_MODE_LEN);
124
125    ret = drmModeSetCrtc(ms->fd, drm_crtc->crtc_id, ms->fb_id, x, y,
126			 &drm_connector->connector_id, 1, &drm_mode);
127
128    if (ret)
129	return FALSE;
130
131    crtc->x = x;
132    crtc->y = y;
133    crtc->mode = *mode;
134    crtc->rotation = rotation;
135
136    return TRUE;
137}
138
139static void
140crtc_gamma_set(xf86CrtcPtr crtc, CARD16 * red, CARD16 * green, CARD16 * blue,
141	       int size)
142{
143    /* XXX: hockup */
144}
145
146static void *
147crtc_shadow_allocate(xf86CrtcPtr crtc, int width, int height)
148{
149    return NULL;
150}
151
152static PixmapPtr
153crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
154{
155    return NULL;
156}
157
158static void
159crtc_shadow_destroy(xf86CrtcPtr crtc, PixmapPtr rotate_pixmap, void *data)
160{
161}
162
163/*
164 * Cursor functions
165 */
166
167static void
168crtc_set_cursor_colors(xf86CrtcPtr crtc, int bg, int fg)
169{
170    /* XXX: See if this one is needed, as we only support ARGB cursors */
171}
172
173static void
174crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y)
175{
176    modesettingPtr ms = modesettingPTR(crtc->scrn);
177    struct crtc_private *crtcp = crtc->driver_private;
178
179    drmModeMoveCursor(ms->fd, crtcp->drm_crtc->crtc_id, x, y);
180}
181
182static void
183crtc_load_cursor_argb_ga3d(xf86CrtcPtr crtc, CARD32 * image)
184{
185    unsigned char *ptr;
186    modesettingPtr ms = modesettingPTR(crtc->scrn);
187    struct crtc_private *crtcp = crtc->driver_private;
188    struct pipe_transfer *transfer;
189
190    if (!crtcp->cursor_tex) {
191	struct pipe_texture templat;
192	unsigned pitch;
193
194	memset(&templat, 0, sizeof(templat));
195	templat.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
196	templat.tex_usage |= PIPE_TEXTURE_USAGE_PRIMARY;
197	templat.target = PIPE_TEXTURE_2D;
198	templat.last_level = 0;
199	templat.depth[0] = 1;
200	templat.format = PIPE_FORMAT_A8R8G8B8_UNORM;
201	templat.width[0] = 64;
202	templat.height[0] = 64;
203	pf_get_block(templat.format, &templat.block);
204
205	crtcp->cursor_tex = ms->screen->texture_create(ms->screen,
206						       &templat);
207	ms->api->local_handle_from_texture(ms->api,
208					   ms->screen,
209					   crtcp->cursor_tex,
210					   &pitch,
211					   &crtcp->cursor_handle);
212    }
213
214    transfer = ms->screen->get_tex_transfer(ms->screen, crtcp->cursor_tex,
215					    0, 0, 0,
216					    PIPE_TRANSFER_WRITE,
217					    0, 0, 64, 64);
218    ptr = ms->screen->transfer_map(ms->screen, transfer);
219    util_copy_rect(ptr, &crtcp->cursor_tex->block,
220		   transfer->stride, 0, 0,
221		   64, 64, (void*)image, 64 * 4, 0, 0);
222    ms->screen->transfer_unmap(ms->screen, transfer);
223    ms->screen->tex_transfer_destroy(transfer);
224}
225
226#if HAVE_LIBKMS
227static void
228crtc_load_cursor_argb_kms(xf86CrtcPtr crtc, CARD32 * image)
229{
230    modesettingPtr ms = modesettingPTR(crtc->scrn);
231    struct crtc_private *crtcp = crtc->driver_private;
232    unsigned char *ptr;
233
234    if (!crtcp->cursor_bo) {
235	unsigned attr[8];
236
237	attr[0] = KMS_BO_TYPE;
238	attr[1] = KMS_BO_TYPE_CURSOR;
239	attr[2] = KMS_WIDTH;
240	attr[3] = 64;
241	attr[4] = KMS_HEIGHT;
242	attr[5] = 64;
243	attr[6] = 0;
244
245        if (kms_bo_create(ms->kms, attr, &crtcp->cursor_bo))
246	   return;
247
248	if (kms_bo_get_prop(crtcp->cursor_bo, KMS_HANDLE,
249			    &crtcp->cursor_handle))
250	    goto err_bo_destroy;
251    }
252
253    kms_bo_map(crtcp->cursor_bo, (void**)&ptr);
254    memcpy(ptr, image, 64*64*4);
255    kms_bo_unmap(crtcp->cursor_bo);
256
257    return;
258
259err_bo_destroy:
260    kms_bo_destroy(crtcp->cursor_bo);
261}
262#endif
263
264static void
265crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
266{
267    modesettingPtr ms = modesettingPTR(crtc->scrn);
268    if (ms->screen)
269	crtc_load_cursor_argb_ga3d(crtc, image);
270#ifdef HAVE_LIBKMS
271    else if (ms->kms)
272	crtc_load_cursor_argb_kms(crtc, image);
273#endif
274}
275
276static void
277crtc_show_cursor(xf86CrtcPtr crtc)
278{
279    modesettingPtr ms = modesettingPTR(crtc->scrn);
280    struct crtc_private *crtcp = crtc->driver_private;
281
282    if (crtcp->cursor_tex || crtcp->cursor_bo)
283	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
284			 crtcp->cursor_handle, 64, 64);
285}
286
287static void
288crtc_hide_cursor(xf86CrtcPtr crtc)
289{
290    modesettingPtr ms = modesettingPTR(crtc->scrn);
291    struct crtc_private *crtcp = crtc->driver_private;
292
293    drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
294}
295
296/**
297 * Called at vt leave
298 */
299void
300xorg_crtc_cursor_destroy(xf86CrtcPtr crtc)
301{
302    struct crtc_private *crtcp = crtc->driver_private;
303
304    if (crtcp->cursor_tex)
305	pipe_texture_reference(&crtcp->cursor_tex, NULL);
306#ifdef HAVE_LIBKMS
307    if (crtcp->cursor_bo)
308	kms_bo_destroy(crtcp->cursor_bo);
309#endif
310
311    xfree(crtcp);
312}
313
314/*
315 * Misc functions
316 */
317
318static void
319crtc_destroy(xf86CrtcPtr crtc)
320{
321    struct crtc_private *crtcp = crtc->driver_private;
322
323    if (crtcp->cursor_tex)
324	pipe_texture_reference(&crtcp->cursor_tex, NULL);
325
326    drmModeFreeCrtc(crtcp->drm_crtc);
327    xfree(crtcp);
328}
329
330static const xf86CrtcFuncsRec crtc_funcs = {
331    .dpms = crtc_dpms,
332    .set_mode_major = crtc_set_mode_major,
333
334    .set_cursor_colors = crtc_set_cursor_colors,
335    .set_cursor_position = crtc_set_cursor_position,
336    .show_cursor = crtc_show_cursor,
337    .hide_cursor = crtc_hide_cursor,
338    .load_cursor_argb = crtc_load_cursor_argb,
339
340    .shadow_create = crtc_shadow_create,
341    .shadow_allocate = crtc_shadow_allocate,
342    .shadow_destroy = crtc_shadow_destroy,
343
344    .gamma_set = crtc_gamma_set,
345    .destroy = crtc_destroy,
346};
347
348void
349xorg_crtc_init(ScrnInfoPtr pScrn)
350{
351    modesettingPtr ms = modesettingPTR(pScrn);
352    xf86CrtcPtr crtc;
353    drmModeResPtr res;
354    drmModeCrtcPtr drm_crtc = NULL;
355    struct crtc_private *crtcp;
356    int c;
357
358    res = drmModeGetResources(ms->fd);
359    if (res == 0) {
360	ErrorF("Failed drmModeGetResources %d\n", errno);
361	return;
362    }
363
364    for (c = 0; c < res->count_crtcs; c++) {
365	drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);
366
367	if (!drm_crtc)
368	    continue;
369
370	crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
371	if (crtc == NULL)
372	    goto out;
373
374	crtcp = xcalloc(1, sizeof(struct crtc_private));
375	if (!crtcp) {
376	    xf86CrtcDestroy(crtc);
377	    goto out;
378	}
379
380	crtcp->drm_crtc = drm_crtc;
381
382	crtc->driver_private = crtcp;
383    }
384
385  out:
386    drmModeFreeResources(res);
387}
388
389/* vim: set sw=4 ts=8 sts=4: */
390