From 5af426a2b29f5426ba5714cb6501aa5b270089b4 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 11 Aug 2008 18:37:16 -0400 Subject: Restructure cursor handling and add support for legacy cursors --- linux-core/radeon_cursor.c | 243 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 243 insertions(+) create mode 100644 linux-core/radeon_cursor.c (limited to 'linux-core/radeon_cursor.c') diff --git a/linux-core/radeon_cursor.c b/linux-core/radeon_cursor.c new file mode 100644 index 00000000..e71b325d --- /dev/null +++ b/linux-core/radeon_cursor.c @@ -0,0 +1,243 @@ +/* + * Copyright 2007-8 Advanced Micro Devices, Inc. + * Copyright 2008 Red Hat Inc. + * + * 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 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 HOLDER(S) OR AUTHOR(S) 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. + * + * Authors: Dave Airlie + * Alex Deucher + */ +#include "drmP.h" +#include "radeon_drm.h" +#include "radeon_drv.h" + +#define CURSOR_WIDTH 64 +#define CURSOR_HEIGHT 64 + +static void radeon_lock_cursor(struct drm_crtc *crtc, bool lock) +{ + struct drm_radeon_private *dev_priv = crtc->dev->dev_private; + struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); + uint32_t cur_lock; + + if (radeon_is_avivo(dev_priv)) { + cur_lock = RADEON_READ(AVIVO_D1CUR_UPDATE + radeon_crtc->crtc_offset); + if (lock) + cur_lock |= AVIVO_D1CURSOR_UPDATE_LOCK; + else + cur_lock &= ~AVIVO_D1CURSOR_UPDATE_LOCK; + RADEON_WRITE(AVIVO_D1CUR_UPDATE + radeon_crtc->crtc_offset, cur_lock); + } else { + switch(radeon_crtc->crtc_id) { + case 0: + cur_lock = RADEON_READ(RADEON_CUR_OFFSET); + if (lock) + cur_lock |= RADEON_CUR_LOCK; + else + cur_lock &= ~RADEON_CUR_LOCK; + RADEON_WRITE(RADEON_CUR_OFFSET, cur_lock); + break; + case 1: + cur_lock = RADEON_READ(RADEON_CUR2_OFFSET); + if (lock) + cur_lock |= RADEON_CUR2_LOCK; + else + cur_lock &= ~RADEON_CUR2_LOCK; + RADEON_WRITE(RADEON_CUR2_OFFSET, cur_lock); + break; + default: + break; + } + } +} + +static void radeon_hide_cursor(struct drm_crtc *crtc) +{ + struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); + struct drm_radeon_private *dev_priv = crtc->dev->dev_private; + + if (radeon_is_avivo(dev_priv)) { + RADEON_WRITE(RADEON_MM_INDEX, AVIVO_D1CUR_CONTROL + radeon_crtc->crtc_offset); + RADEON_WRITE_P(RADEON_MM_DATA, 0, ~AVIVO_D1CURSOR_EN); + } else { + switch(radeon_crtc->crtc_id) { + case 0: + RADEON_WRITE(RADEON_MM_INDEX, RADEON_CRTC_GEN_CNTL); + break; + case 1: + RADEON_WRITE(RADEON_MM_INDEX, RADEON_CRTC2_GEN_CNTL); + break; + default: + return; + } + RADEON_WRITE_P(RADEON_MM_DATA, 0, ~RADEON_CRTC_CUR_EN); + } +} + +static void radeon_show_cursor(struct drm_crtc *crtc) +{ + struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); + struct drm_radeon_private *dev_priv = crtc->dev->dev_private; + + if (radeon_is_avivo(dev_priv)) { + RADEON_WRITE(RADEON_MM_INDEX, AVIVO_D1CUR_CONTROL + radeon_crtc->crtc_offset); + RADEON_WRITE(RADEON_MM_DATA, AVIVO_D1CURSOR_EN | + (AVIVO_D1CURSOR_MODE_24BPP << AVIVO_D1CURSOR_MODE_SHIFT)); + } else { + switch(radeon_crtc->crtc_id) { + case 0: + RADEON_WRITE(RADEON_MM_INDEX, RADEON_CRTC_GEN_CNTL); + break; + case 1: + RADEON_WRITE(RADEON_MM_INDEX, RADEON_CRTC2_GEN_CNTL); + break; + default: + return; + } + + RADEON_WRITE_P(RADEON_MM_DATA, (RADEON_CRTC_CUR_EN | + (RADEON_CRTC_CUR_MODE_24BPP << RADEON_CRTC_CUR_MODE_SHIFT)), + ~(RADEON_CRTC_CUR_EN | RADEON_CRTC_CUR_MODE_MASK)); + } +} + +static void radeon_set_cursor(struct drm_crtc *crtc, struct drm_gem_object *obj, + uint32_t width, uint32_t height) +{ + struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); + struct drm_radeon_private *dev_priv = crtc->dev->dev_private; + struct drm_radeon_gem_object *obj_priv; + + obj_priv = obj->driver_private; + + if (radeon_is_avivo(dev_priv)) { + RADEON_WRITE(AVIVO_D1CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset, + dev_priv->fb_location + obj_priv->bo->offset); + RADEON_WRITE(AVIVO_D1CUR_SIZE + radeon_crtc->crtc_offset, + (width - 1) << 16 | (height - 1)); + } else { + switch(radeon_crtc->crtc_id) { + case 0: + /* offset is from DISP_BASE_ADDRESS */ + RADEON_WRITE(RADEON_CUR_OFFSET, obj_priv->bo->offset); + break; + case 1: + /* offset is from DISP2_BASE_ADDRESS */ + RADEON_WRITE(RADEON_CUR2_OFFSET, obj_priv->bo->offset); + break; + default: + break; + } + } +} + +int radeon_crtc_cursor_set(struct drm_crtc *crtc, + struct drm_file *file_priv, + uint32_t handle, + uint32_t width, + uint32_t height) +{ + struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); + struct drm_gem_object *obj; + + if (!handle) { + /* turn off cursor */ + radeon_hide_cursor(crtc); + return 0; + } + + obj = drm_gem_object_lookup(crtc->dev, file_priv, handle); + if (!obj) { + DRM_ERROR("Cannot find cursor object %x for crtc %d\n", handle, radeon_crtc->crtc_id); + return -EINVAL; + } + + if ((width > CURSOR_WIDTH) || (height > CURSOR_HEIGHT)) { + DRM_ERROR("bad cursor width or height %d x %d\n", width, height); + return -EINVAL; + } + + radeon_lock_cursor(crtc, true); + // XXX only 27 bit offset for legacy cursor + radeon_set_cursor(crtc, obj, width, height); + radeon_show_cursor(crtc); + radeon_lock_cursor(crtc, false); + + mutex_lock(&crtc->dev->struct_mutex); + drm_gem_object_unreference(obj); + mutex_unlock(&crtc->dev->struct_mutex); + + return 0; +} + +int radeon_crtc_cursor_move(struct drm_crtc *crtc, + int x, int y) +{ + struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); + struct drm_radeon_private *dev_priv = crtc->dev->dev_private; + int xorigin = 0, yorigin = 0; + + if (x < 0) + xorigin = -x + 1; + if (y < 0) + yorigin = -x + 1; + if (xorigin >= CURSOR_WIDTH) + xorigin = CURSOR_WIDTH - 1; + if (yorigin >= CURSOR_WIDTH) + yorigin = CURSOR_WIDTH - 1; + + radeon_lock_cursor(crtc, true); + if (radeon_is_avivo(dev_priv)) { + RADEON_WRITE(AVIVO_D1CUR_POSITION + radeon_crtc->crtc_offset, + ((xorigin ? 0: x) << 16) | + (yorigin ? 0 : y)); + RADEON_WRITE(AVIVO_D1CUR_HOT_SPOT + radeon_crtc->crtc_offset, (xorigin << 16) | yorigin); + } else { + if (crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) + y /= 2; + else if (crtc->mode.flags & DRM_MODE_FLAG_DBLSCAN) + y *= 2; + + switch(radeon_crtc->crtc_id) { + case 0: + RADEON_WRITE(RADEON_CUR_HORZ_VERT_OFF, (RADEON_CUR_LOCK + | (xorigin << 16) + | yorigin)); + RADEON_WRITE(RADEON_CUR_HORZ_VERT_POSN, (RADEON_CUR_LOCK + | ((xorigin ? 0 : x) << 16) + | (yorigin ? 0 : y))); + break; + case 1: + RADEON_WRITE(RADEON_CUR2_HORZ_VERT_OFF, (RADEON_CUR2_LOCK + | (xorigin << 16) + | yorigin)); + RADEON_WRITE(RADEON_CUR2_HORZ_VERT_POSN, (RADEON_CUR2_LOCK + | ((xorigin ? 0 : x) << 16) + | (yorigin ? 0 : y))); + break; + default: + break; + } + + } + radeon_lock_cursor(crtc, false); + + return 0; +} + -- cgit v1.2.3