git.oblomov.eu Git - nouveau/blob - src/nv50_crtc.c

   1 /*
   2  * Copyright (c) 2007 NVIDIA, Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the
   6  * "Software"), to deal in the Software without restriction, including
   7  * without limitation the rights to use, copy, modify, merge, publish,
   8  * distribute, sublicense, and/or sell copies of the Software, and to
   9  * permit persons to whom the Software is furnished to do so, subject to
  10  * the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included
  13  * in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  18  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  19  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  20  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  21  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 #include "nv_include.h"
  25
  26 /* Don't call the directly, only load state should do this on the long run*/
  27 void NV50CheckWriteVClk(ScrnInfoPtr pScrn)
  28 {
  29         NVPtr pNv = NVPTR(pScrn);
  30         while (NVRead(pNv, 0x00610300) & 0x80000000) {
  31                 /* What does is the meaning of this? */
  32                 const int super = ffs((NVRead(pNv, 0x00610024) >> 4) & 0x7);
  33
  34                 if (super > 0) {
  35                         if (super == 2) {
  36                                 xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
  37                                 const CARD32 clockvar = NVRead(pNv, 0x00610030);
  38                                 int i;
  39
  40                                 for(i = 0; i < xf86_config->num_crtc; i++) {
  41                                         xf86CrtcPtr crtc = xf86_config->crtc[i];
  42                                         NVCrtcPrivatePtr nv_crtc = crtc->driver_private;
  43
  44                                         if (clockvar & (1 << (9 + nv_crtc->head))) {
  45                                                 NV50CrtcSetPClk(crtc);
  46                                         }
  47                                 }
  48                         }
  49
  50                         NVWrite(pNv, 0x00610024, 1 << (3 + super));
  51                         NVWrite(pNv, 0x00610030, 0x80000000);
  52                 }
  53         }
  54 }
  55
  56 void NV50DisplayCommand(ScrnInfoPtr pScrn, CARD32 addr, CARD32 value)
  57 {
  58         NVPtr pNv = NVPTR(pScrn);
  59         NVWrite(pNv, 0x00610304, value);
  60         NVWrite(pNv, 0x00610300, addr | 0x80010001);
  61         NV50CheckWriteVClk(pScrn);
  62 }
  63
  64 void NV50CrtcCommand(xf86CrtcPtr crtc, CARD32 addr, CARD32 value)
  65 {
  66         ScrnInfoPtr pScrn = crtc->scrn;
  67         NVCrtcPrivatePtr nv_crtc = crtc->driver_private;
  68
  69         /* This head dependent offset may not be true everywere */
  70         NV50DisplayCommand(pScrn, addr + 0x400 * nv_crtc->head, value);
  71 }
  72
  73 void nv50_crtc_dpms_set(xf86CrtcPtr crtc, int mode)
  74 {
  75 }
  76
  77 static Bool nv50_crtc_lock(xf86CrtcPtr crtc)
  78 {
  79         return FALSE;
  80 }
  81
  82 static const xf86CrtcFuncsRec nv50_crtc_funcs = {
  83         .dpms = nv50_crtc_dpms_set,
  84         .save = NULL,
  85         .restore = NULL,
  86         .lock = nv50_crtc_lock,
  87         .unlock = NULL,
  88         .mode_fixup = NV50CrtcModeFixup,
  89         .prepare = NV50CrtcPrepare,
  90         .mode_set = NV50CrtcModeSet,
  91         // .gamma_set = NV50DispGammaSet,
  92         .commit = NV50CrtcCommit,
  93         .shadow_create = NULL,
  94         .shadow_destroy = NULL,
  95         .set_cursor_position = NV50SetCursorPosition,
  96         .show_cursor = NV50CrtcShowCursor,
  97         .hide_cursor = NV50CrtcHideCursor,
  98         .load_cursor_argb = NV50LoadCursorARGB,
  99         .destroy = NULL,
 100 };
 101
 102 void NV50DispCreateCrtcs(ScrnInfoPtr pScrn)
 103 {
 104         NVPtr pNv = NVPTR(pScrn);
 105         Head head;
 106         xf86CrtcPtr crtc;
 107         NVCrtcPrivatePtr nv50_crtc;
 108
 109         /* Create a "crtc" object for each head */
 110         for(head = HEAD0; head <= HEAD1; head++) {
 111                 crtc = xf86CrtcCreate(pScrn, &nv50_crtc_funcs);
 112                 if(!crtc) return;
 113
 114                 nv50_crtc = xnfcalloc(sizeof(*nv50_crtc), 1);
 115                 nv50_crtc->head = head;
 116                 nv50_crtc->ditherEnabled = pNv->FPDither;
 117                 crtc->driver_private = nv50_crtc;
 118         }
 119 }
 120