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#ifdef HAVE_CONFIG_H
25#include "config.h"
26#endif
27
28#include <string.h>
29
30#include <cursorstr.h>
31
32#include "g80_type.h"
33#include "g80_cursor.h"
34#include "g80_display.h"
35
36#define CURSOR_PTR ((CARD32*)pNv->mem + pNv->videoRam * 256 - 0x1000)
37
38void G80SetCursorPosition(xf86CrtcPtr crtc, int x, int y)
39{
40    G80Ptr pNv = G80PTR(crtc->scrn);
41    const int headOff = 0x1000*G80CrtcGetHead(crtc);
42
43    x &= 0xffff;
44    y &= 0xffff;
45    pNv->reg[(0x00647084 + headOff)/4] = y << 16 | x;
46    pNv->reg[(0x00647080 + headOff)/4] = 0;
47}
48
49void G80LoadCursorARGB(xf86CrtcPtr crtc, CARD32 *src)
50{
51    G80Ptr pNv = G80PTR(crtc->scrn);
52    CARD32 *dst = CURSOR_PTR;
53
54    /* Assume cursor is 64x64 */
55    memcpy(dst, src, 64 * 64 * 4);
56}
57
58Bool G80CursorAcquire(ScrnInfoPtr pScrn)
59{
60    G80Ptr pNv = G80PTR(pScrn);
61    xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
62    int i;
63
64    if(!pNv->HWCursor) return TRUE;
65
66    /* Initialize the cursor on each head */
67    for(i = 0; i < xf86_config->num_crtc; i++) {
68        const int headOff = 0x10 * G80CrtcGetHead(xf86_config->crtc[i]);
69
70        pNv->reg[(0x00610270+headOff)/4] = 0x2000;
71        while(pNv->reg[(0x00610270+headOff)/4] & 0x30000);
72
73        pNv->reg[(0x00610270+headOff)/4] = 1;
74        while((pNv->reg[(0x00610270+headOff)/4] & 0x30000) != 0x10000);
75    }
76
77    return TRUE;
78}
79
80void G80CursorRelease(ScrnInfoPtr pScrn)
81{
82    G80Ptr pNv = G80PTR(pScrn);
83    xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
84    int i;
85
86    if(!pNv->HWCursor) return;
87
88    /* Release the cursor on each head */
89    for(i = 0; i < xf86_config->num_crtc; i++) {
90        const int headOff = 0x10 * G80CrtcGetHead(xf86_config->crtc[i]);
91
92        pNv->reg[(0x00610270+headOff)/4] = 0;
93        while(pNv->reg[(0x00610270+headOff)/4] & 0x30000);
94    }
95}
96
97Bool G80CursorInit(ScreenPtr pScreen)
98{
99    return xf86_cursors_init(pScreen, 64, 64,
100            HARDWARE_CURSOR_TRUECOLOR_AT_8BPP |
101            HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_32 |
102            HARDWARE_CURSOR_ARGB);
103}
104