src/gallium/state_trackers/xorg/xorg_crtc.c

   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 #define DPMS_SERVER
  46 #include <X11/extensions/dpms.h>
  47
  48 #include "pipe/p_inlines.h"
  49
  50 struct crtc_private
  51 {
  52     drmModeCrtcPtr drm_crtc;
  53
  54     /* hwcursor */
  55     struct pipe_buffer *cursor_buf;
  56     unsigned cursor_handle;
  57 };
  58
  59 static void
  60 crtc_dpms(xf86CrtcPtr crtc, int mode)
  61 {
  62     //ScrnInfoPtr pScrn = crtc->scrn;
  63
  64     switch (mode) {
  65     case DPMSModeOn:
  66     case DPMSModeStandby:
  67     case DPMSModeSuspend:
  68         break;
  69     case DPMSModeOff:
  70         break;
  71     }
  72 }
  73
  74 static Bool
  75 crtc_lock(xf86CrtcPtr crtc)
  76 {
  77     return FALSE;
  78 }
  79
  80 static void
  81 crtc_unlock(xf86CrtcPtr crtc)
  82 {
  83 }
  84
  85 static void
  86 crtc_prepare(xf86CrtcPtr crtc)
  87 {
  88 }
  89
  90 static void
  91 crtc_commit(xf86CrtcPtr crtc)
  92 {
  93 }
  94
  95 static Bool
  96 crtc_mode_fixup(xf86CrtcPtr crtc, DisplayModePtr mode,
  97                 DisplayModePtr adjusted_mode)
  98 {
  99     return TRUE;
 100 }
 101
 102 static void
 103 crtc_mode_set(xf86CrtcPtr crtc, DisplayModePtr mode,
 104               DisplayModePtr adjusted_mode, int x, int y)
 105 {
 106     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
 107     modesettingPtr ms = modesettingPTR(crtc->scrn);
 108     xf86OutputPtr output = config->output[config->compat_output];
 109     drmModeConnectorPtr drm_connector = output->driver_private;
 110     struct crtc_private *crtcp = crtc->driver_private;
 111     drmModeCrtcPtr drm_crtc = crtcp->drm_crtc;
 112     drmModeModeInfo drm_mode;
 113
 114     drm_mode.clock = mode->Clock;
 115     drm_mode.hdisplay = mode->HDisplay;
 116     drm_mode.hsync_start = mode->HSyncStart;
 117     drm_mode.hsync_end = mode->HSyncEnd;
 118     drm_mode.htotal = mode->HTotal;
 119     drm_mode.vdisplay = mode->VDisplay;
 120     drm_mode.vsync_start = mode->VSyncStart;
 121     drm_mode.vsync_end = mode->VSyncEnd;
 122     drm_mode.vtotal = mode->VTotal;
 123     drm_mode.flags = mode->Flags;
 124     drm_mode.hskew = mode->HSkew;
 125     drm_mode.vscan = mode->VScan;
 126     drm_mode.vrefresh = mode->VRefresh;
 127     if (!mode->name)
 128         xf86SetModeDefaultName(mode);
 129     strncpy(drm_mode.name, mode->name, DRM_DISPLAY_MODE_LEN);
 130
 131     drmModeSetCrtc(ms->fd, drm_crtc->crtc_id, ms->fb_id, x, y,
 132                    &drm_connector->connector_id, 1, &drm_mode);
 133 }
 134
 135 #if 0
 136 static void
 137 crtc_load_lut(xf86CrtcPtr crtc)
 138 {
 139     //ScrnInfoPtr pScrn = crtc->scrn;
 140 }
 141 #endif
 142
 143 static void
 144 crtc_gamma_set(xf86CrtcPtr crtc, CARD16 * red, CARD16 * green, CARD16 * blue,
 145                int size)
 146 {
 147 }
 148
 149 static void *
 150 crtc_shadow_allocate(xf86CrtcPtr crtc, int width, int height)
 151 {
 152     //ScrnInfoPtr pScrn = crtc->scrn;
 153
 154     return NULL;
 155 }
 156
 157 static PixmapPtr
 158 crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
 159 {
 160     //ScrnInfoPtr pScrn = crtc->scrn;
 161
 162     return NULL;
 163 }
 164
 165 static void
 166 crtc_shadow_destroy(xf86CrtcPtr crtc, PixmapPtr rotate_pixmap, void *data)
 167 {
 168     //ScrnInfoPtr pScrn = crtc->scrn;
 169 }
 170
 171 static void
 172 crtc_destroy(xf86CrtcPtr crtc)
 173 {
 174     struct crtc_private *crtcp = crtc->driver_private;
 175
 176     if (crtcp->cursor_buf)
 177         pipe_buffer_reference(&crtcp->cursor_buf, NULL);
 178
 179     drmModeFreeCrtc(crtcp->drm_crtc);
 180     xfree(crtcp);
 181 }
 182
 183 static void
 184 crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
 185 {
 186     unsigned char *ptr;
 187     modesettingPtr ms = modesettingPTR(crtc->scrn);
 188     struct crtc_private *crtcp = crtc->driver_private;
 189
 190     if (!crtcp->cursor_buf) {
 191         crtcp->cursor_buf = pipe_buffer_create(ms->screen,
 192                                                0,
 193                                                PIPE_BUFFER_USAGE_CPU_WRITE |
 194                                                PIPE_BUFFER_USAGE_GPU_READ,
 195                                                64*64*4);
 196         ms->api->handle_from_buffer(ms->api,
 197                                     ms->screen,
 198                                     crtcp->cursor_buf,
 199                                     &crtcp->cursor_handle);
 200     }
 201
 202     ptr = pipe_buffer_map(ms->screen, crtcp->cursor_buf, PIPE_BUFFER_USAGE_CPU_WRITE);
 203
 204     if (ptr)
 205         memcpy(ptr, image, 64 * 64 * 4);
 206
 207     pipe_buffer_unmap(ms->screen, crtcp->cursor_buf);
 208 }
 209
 210 static void
 211 crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y)
 212 {
 213     modesettingPtr ms = modesettingPTR(crtc->scrn);
 214     struct crtc_private *crtcp = crtc->driver_private;
 215
 216     drmModeMoveCursor(ms->fd, crtcp->drm_crtc->crtc_id, x, y);
 217 }
 218
 219 static void
 220 crtc_show_cursor(xf86CrtcPtr crtc)
 221 {
 222     modesettingPtr ms = modesettingPTR(crtc->scrn);
 223     struct crtc_private *crtcp = crtc->driver_private;
 224
 225     if (crtcp->cursor_buf)
 226         drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
 227                          crtcp->cursor_handle, 64, 64);
 228 }
 229
 230 static void
 231 crtc_hide_cursor(xf86CrtcPtr crtc)
 232 {
 233     modesettingPtr ms = modesettingPTR(crtc->scrn);
 234     struct crtc_private *crtcp = crtc->driver_private;
 235
 236     drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
 237 }
 238
 239 static const xf86CrtcFuncsRec crtc_funcs = {
 240     .dpms = crtc_dpms,
 241     .save = NULL,
 242     .restore = NULL,
 243     .lock = crtc_lock,
 244     .unlock = crtc_unlock,
 245     .mode_fixup = crtc_mode_fixup,
 246     .prepare = crtc_prepare,
 247     .mode_set = crtc_mode_set,
 248     .commit = crtc_commit,
 249     .gamma_set = crtc_gamma_set,
 250     .shadow_create = crtc_shadow_create,
 251     .shadow_allocate = crtc_shadow_allocate,
 252     .shadow_destroy = crtc_shadow_destroy,
 253     .set_cursor_position = crtc_set_cursor_position,
 254     .show_cursor = crtc_show_cursor,
 255     .hide_cursor = crtc_hide_cursor,
 256     .load_cursor_image = NULL,         /* lets convert to argb only */
 257     .set_cursor_colors = NULL,         /* using argb only */
 258     .load_cursor_argb = crtc_load_cursor_argb,
 259     .destroy = crtc_destroy,
 260 };
 261
 262 void
 263 cursor_destroy(xf86CrtcPtr crtc)
 264 {
 265     modesettingPtr ms = modesettingPTR(crtc->scrn);
 266     struct crtc_private *crtcp = crtc->driver_private;
 267
 268     if (crtcp->cursor_buf) {
 269         pipe_buffer_reference(&crtcp->cursor_buf, NULL);
 270     }
 271 }
 272
 273 void
 274 crtc_init(ScrnInfoPtr pScrn)
 275 {
 276     modesettingPtr ms = modesettingPTR(pScrn);
 277     xf86CrtcPtr crtc;
 278     drmModeResPtr res;
 279     drmModeCrtcPtr drm_crtc = NULL;
 280     struct crtc_private *crtcp;
 281     int c;
 282
 283     res = drmModeGetResources(ms->fd);
 284     if (res == 0) {
 285         ErrorF("Failed drmModeGetResources %d\n", errno);
 286         return;
 287     }
 288
 289     for (c = 0; c < res->count_crtcs; c++) {
 290         drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);
 291         if (!drm_crtc)
 292             continue;
 293
 294         crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
 295         if (crtc == NULL)
 296             goto out;
 297
 298         crtcp = xcalloc(1, sizeof(struct crtc_private));
 299         if (!crtcp) {
 300             xf86CrtcDestroy(crtc);
 301             goto out;
 302         }
 303
 304         crtcp->drm_crtc = drm_crtc;
 305
 306         crtc->driver_private = crtcp;
 307
 308     }
 309
 310   out:
 311     drmModeFreeResources(res);
 312 }
 313
 314 /* vim: set sw=4 ts=8 sts=4: */