release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/gpu/drm/nouveau/nv04_cursor.c

   1 #include "drmP.h"
   2 #include "drm_mode.h"
   3 #include "nouveau_reg.h"
   4 #include "nouveau_drv.h"
   5 #include "nouveau_crtc.h"
   6 #include "nouveau_hw.h"
   7
   8 static void
   9 nv04_cursor_show(struct nouveau_crtc *nv_crtc, bool update)
  10 {
  11         nv_show_cursor(nv_crtc->base.dev, nv_crtc->index, true);
  12 }
  13
  14 static void
  15 nv04_cursor_hide(struct nouveau_crtc *nv_crtc, bool update)
  16 {
  17         nv_show_cursor(nv_crtc->base.dev, nv_crtc->index, false);
  18 }
  19
  20 static void
  21 nv04_cursor_set_pos(struct nouveau_crtc *nv_crtc, int x, int y)
  22 {
  23         nv_crtc->cursor_saved_x = x; nv_crtc->cursor_saved_y = y;
  24         NVWriteRAMDAC(nv_crtc->base.dev, nv_crtc->index,
  25                       NV_PRAMDAC_CU_START_POS,
  26                       XLATE(y, 0, NV_PRAMDAC_CU_START_POS_Y) |
  27                       XLATE(x, 0, NV_PRAMDAC_CU_START_POS_X));
  28 }
  29
  30 static void
  31 crtc_wr_cio_state(struct drm_crtc *crtc, struct nv04_crtc_reg *crtcstate, int index)
  32 {
  33         NVWriteVgaCrtc(crtc->dev, nouveau_crtc(crtc)->index, index,
  34                        crtcstate->CRTC[index]);
  35 }
  36
  37 static void
  38 nv04_cursor_set_offset(struct nouveau_crtc *nv_crtc, uint32_t offset)
  39 {
  40         struct drm_device *dev = nv_crtc->base.dev;
  41         struct drm_nouveau_private *dev_priv = dev->dev_private;
  42         struct nv04_crtc_reg *regp = &dev_priv->mode_reg.crtc_reg[nv_crtc->index];
  43         struct drm_crtc *crtc = &nv_crtc->base;
  44
  45         regp->CRTC[NV_CIO_CRE_HCUR_ADDR0_INDEX] =
  46                 MASK(NV_CIO_CRE_HCUR_ASI) |
  47                 XLATE(offset, 17, NV_CIO_CRE_HCUR_ADDR0_ADR);
  48         regp->CRTC[NV_CIO_CRE_HCUR_ADDR1_INDEX] =
  49                 XLATE(offset, 11, NV_CIO_CRE_HCUR_ADDR1_ADR);
  50         if (crtc->mode.flags & DRM_MODE_FLAG_DBLSCAN)
  51                 regp->CRTC[NV_CIO_CRE_HCUR_ADDR1_INDEX] |=
  52                         MASK(NV_CIO_CRE_HCUR_ADDR1_CUR_DBL);
  53         regp->CRTC[NV_CIO_CRE_HCUR_ADDR2_INDEX] = offset >> 24;
  54
  55         crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_HCUR_ADDR0_INDEX);
  56         crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_HCUR_ADDR1_INDEX);
  57         crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_HCUR_ADDR2_INDEX);
  58         if (dev_priv->card_type == NV_40)
  59                 nv_fix_nv40_hw_cursor(dev, nv_crtc->index);
  60 }
  61
  62 int
  63 nv04_cursor_init(struct nouveau_crtc *crtc)
  64 {
  65         crtc->cursor.set_offset = nv04_cursor_set_offset;
  66         crtc->cursor.set_pos = nv04_cursor_set_pos;
  67         crtc->cursor.hide = nv04_cursor_hide;
  68         crtc->cursor.show = nv04_cursor_show;
  69         return 0;
  70 }