diff options
Diffstat (limited to 'linux-core/nv50_cursor.c')
| -rw-r--r-- | linux-core/nv50_cursor.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/linux-core/nv50_cursor.c b/linux-core/nv50_cursor.c new file mode 100644 index 00000000..091c94fe --- /dev/null +++ b/linux-core/nv50_cursor.c @@ -0,0 +1,193 @@ +/* + * Copyright (C) 2008 Maarten Maathuis. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial + * portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + */ + +#include "nv50_cursor.h" +#include "nv50_crtc.h" +#include "nv50_display.h" + +static int nv50_cursor_enable(struct nv50_crtc *crtc) +{ + struct drm_nouveau_private *dev_priv = crtc->dev->dev_private; + + NV50_DEBUG("\n"); + + NV_WRITE(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index), 0x2000); + while(NV_READ(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index)) & NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_MASK); + + NV_WRITE(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index), NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_ON); + while((NV_READ(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index)) & NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_MASK) + != NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_ACTIVE); + + crtc->cursor->enabled = true; + + return 0; +} + +static int nv50_cursor_disable(struct nv50_crtc *crtc) +{ + struct drm_nouveau_private *dev_priv = crtc->dev->dev_private; + + NV50_DEBUG("\n"); + + NV_WRITE(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index), 0); + while(NV_READ(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(crtc->index)) & NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_MASK); + + crtc->cursor->enabled = false; + + return 0; +} + +/* Calling update or changing the stored cursor state is left to the higher level ioctl's. */ +static int nv50_cursor_show(struct nv50_crtc *crtc) +{ + struct drm_nouveau_private *dev_priv = crtc->dev->dev_private; + uint32_t offset = crtc->index * 0x400; + + NV50_DEBUG("\n"); + + /* Better not show the cursor when we have none. */ + /* TODO: is cursor offset actually set? */ + if (!crtc->cursor->block) { + DRM_ERROR("No cursor available on crtc %d\n", crtc->index); + return -EINVAL; + } + + OUT_MODE(NV50_CRTC0_CURSOR_CTRL + offset, NV50_CRTC0_CURSOR_CTRL_SHOW); + + return 0; +} + +static int nv50_cursor_hide(struct nv50_crtc *crtc) +{ + struct drm_nouveau_private *dev_priv = crtc->dev->dev_private; + uint32_t offset = crtc->index * 0x400; + + NV50_DEBUG("\n"); + + OUT_MODE(NV50_CRTC0_CURSOR_CTRL + offset, NV50_CRTC0_CURSOR_CTRL_HIDE); + + return 0; +} + +static int nv50_cursor_set_pos(struct nv50_crtc *crtc, int x, int y) +{ + struct drm_nouveau_private *dev_priv = crtc->dev->dev_private; + + NV_WRITE(NV50_HW_CURSOR_POS(crtc->index), ((y & 0xFFFF) << 16) | (x & 0xFFFF)); + /* Needed to make the cursor move. */ + NV_WRITE(NV50_HW_CURSOR_POS_CTRL(crtc->index), 0); + + return 0; +} + +static int nv50_cursor_set_offset(struct nv50_crtc *crtc) +{ + struct drm_nouveau_private *dev_priv = crtc->dev->dev_private; + + NV50_DEBUG("\n"); + + if (crtc->cursor->block) { + OUT_MODE(NV50_CRTC0_CURSOR_OFFSET + crtc->index * 0x400, crtc->cursor->block->start >> 8); + } else { + OUT_MODE(NV50_CRTC0_CURSOR_OFFSET + crtc->index * 0x400, 0); + } + + return 0; +} + +static int nv50_cursor_set_bo(struct nv50_crtc *crtc, drm_handle_t handle) +{ + struct mem_block *block = NULL; + struct drm_nouveau_private *dev_priv = crtc->dev->dev_private; + + NV50_DEBUG("\n"); + + block = find_block_by_handle(dev_priv->fb_heap, handle); + + if (block) { + bool first_time = false; + if (!crtc->cursor->block) + first_time = true; + + crtc->cursor->block = block; + + /* set the cursor offset cursor */ + if (first_time) { + crtc->cursor->set_offset(crtc); + if (crtc->cursor->visible) + crtc->cursor->show(crtc); + } + } else { + DRM_ERROR("Unable to find cursor bo with handle 0x%X\n", handle); + return -EINVAL; + } + + return 0; +} + +int nv50_cursor_create(struct nv50_crtc *crtc) +{ + NV50_DEBUG("\n"); + + if (!crtc) + return -EINVAL; + + crtc->cursor = kzalloc(sizeof(struct nv50_cursor), GFP_KERNEL); + if (!crtc->cursor) + return -ENOMEM; + + /* function pointers */ + crtc->cursor->show = nv50_cursor_show; + crtc->cursor->hide = nv50_cursor_hide; + crtc->cursor->set_pos = nv50_cursor_set_pos; + crtc->cursor->set_offset = nv50_cursor_set_offset; + crtc->cursor->set_bo = nv50_cursor_set_bo; + crtc->cursor->enable = nv50_cursor_enable; + crtc->cursor->disable = nv50_cursor_disable; + + return 0; +} + +int nv50_cursor_destroy(struct nv50_crtc *crtc) +{ + int rval = 0; + + NV50_DEBUG("\n"); + + if (!crtc) + return -EINVAL; + + if (crtc->cursor->enabled) { + rval = crtc->cursor->disable(crtc); + if (rval != 0) + return rval; + } + + kfree(crtc->cursor); + crtc->cursor = NULL; + + return 0; +} |