1/*
2 * Copyright 2010 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Ben Skeggs
23 */
24
25#include "nouveau_drm.h"
26#include "nouveau_dma.h"
27#include "nouveau_fbcon.h"
28
29int
30nvc0_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
31{
32	struct nouveau_fbdev *nfbdev = info->par;
33	struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
34	struct nouveau_channel *chan = drm->channel;
35	int ret;
36
37	ret = RING_SPACE(chan, rect->rop == ROP_COPY ? 7 : 11);
38	if (ret)
39		return ret;
40
41	if (rect->rop != ROP_COPY) {
42		BEGIN_NVC0(chan, NvSub2D, 0x02ac, 1);
43		OUT_RING  (chan, 1);
44	}
45	BEGIN_NVC0(chan, NvSub2D, 0x0588, 1);
46	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
47	    info->fix.visual == FB_VISUAL_DIRECTCOLOR)
48		OUT_RING  (chan, ((uint32_t *)info->pseudo_palette)[rect->color]);
49	else
50		OUT_RING  (chan, rect->color);
51	BEGIN_NVC0(chan, NvSub2D, 0x0600, 4);
52	OUT_RING  (chan, rect->dx);
53	OUT_RING  (chan, rect->dy);
54	OUT_RING  (chan, rect->dx + rect->width);
55	OUT_RING  (chan, rect->dy + rect->height);
56	if (rect->rop != ROP_COPY) {
57		BEGIN_NVC0(chan, NvSub2D, 0x02ac, 1);
58		OUT_RING  (chan, 3);
59	}
60	FIRE_RING(chan);
61	return 0;
62}
63
64int
65nvc0_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region)
66{
67	struct nouveau_fbdev *nfbdev = info->par;
68	struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
69	struct nouveau_channel *chan = drm->channel;
70	int ret;
71
72	ret = RING_SPACE(chan, 12);
73	if (ret)
74		return ret;
75
76	BEGIN_NVC0(chan, NvSub2D, 0x0110, 1);
77	OUT_RING  (chan, 0);
78	BEGIN_NVC0(chan, NvSub2D, 0x08b0, 4);
79	OUT_RING  (chan, region->dx);
80	OUT_RING  (chan, region->dy);
81	OUT_RING  (chan, region->width);
82	OUT_RING  (chan, region->height);
83	BEGIN_NVC0(chan, NvSub2D, 0x08d0, 4);
84	OUT_RING  (chan, 0);
85	OUT_RING  (chan, region->sx);
86	OUT_RING  (chan, 0);
87	OUT_RING  (chan, region->sy);
88	FIRE_RING(chan);
89	return 0;
90}
91
92int
93nvc0_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
94{
95	struct nouveau_fbdev *nfbdev = info->par;
96	struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
97	struct nouveau_channel *chan = drm->channel;
98	uint32_t width, dwords, *data = (uint32_t *)image->data;
99	uint32_t mask = ~(~0 >> (32 - info->var.bits_per_pixel));
100	uint32_t *palette = info->pseudo_palette;
101	int ret;
102
103	if (image->depth != 1)
104		return -ENODEV;
105
106	ret = RING_SPACE(chan, 11);
107	if (ret)
108		return ret;
109
110	width = ALIGN(image->width, 32);
111	dwords = (width * image->height) >> 5;
112
113	BEGIN_NVC0(chan, NvSub2D, 0x0814, 2);
114	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
115	    info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
116		OUT_RING  (chan, palette[image->bg_color] | mask);
117		OUT_RING  (chan, palette[image->fg_color] | mask);
118	} else {
119		OUT_RING  (chan, image->bg_color);
120		OUT_RING  (chan, image->fg_color);
121	}
122	BEGIN_NVC0(chan, NvSub2D, 0x0838, 2);
123	OUT_RING  (chan, image->width);
124	OUT_RING  (chan, image->height);
125	BEGIN_NVC0(chan, NvSub2D, 0x0850, 4);
126	OUT_RING  (chan, 0);
127	OUT_RING  (chan, image->dx);
128	OUT_RING  (chan, 0);
129	OUT_RING  (chan, image->dy);
130
131	while (dwords) {
132		int push = dwords > 2047 ? 2047 : dwords;
133
134		ret = RING_SPACE(chan, push + 1);
135		if (ret)
136			return ret;
137
138		dwords -= push;
139
140		BEGIN_NIC0(chan, NvSub2D, 0x0860, push);
141		OUT_RINGp(chan, data, push);
142		data += push;
143	}
144
145	FIRE_RING(chan);
146	return 0;
147}
148
149int
150nvc0_fbcon_accel_init(struct fb_info *info)
151{
152	struct nouveau_fbdev *nfbdev = info->par;
153	struct drm_device *dev = nfbdev->dev;
154	struct nouveau_framebuffer *fb = &nfbdev->nouveau_fb;
155	struct nouveau_drm *drm = nouveau_drm(dev);
156	struct nouveau_channel *chan = drm->channel;
157	int ret, format;
158
159	ret = nvif_object_init(&chan->user, 0x902d, 0x902d, NULL, 0,
160			       &nfbdev->twod);
161	if (ret)
162		return ret;
163
164	switch (info->var.bits_per_pixel) {
165	case 8:
166		format = 0xf3;
167		break;
168	case 15:
169		format = 0xf8;
170		break;
171	case 16:
172		format = 0xe8;
173		break;
174	case 32:
175		switch (info->var.transp.length) {
176		case 0: /* depth 24 */
177		case 8: /* depth 32, just use 24.. */
178			format = 0xe6;
179			break;
180		case 2: /* depth 30 */
181			format = 0xd1;
182			break;
183		default:
184			return -EINVAL;
185		}
186		break;
187	default:
188		return -EINVAL;
189	}
190
191	ret = RING_SPACE(chan, 58);
192	if (ret) {
193		WARN_ON(1);
194		nouveau_fbcon_gpu_lockup(info);
195		return ret;
196	}
197
198	BEGIN_NVC0(chan, NvSub2D, 0x0000, 1);
199	OUT_RING  (chan, nfbdev->twod.handle);
200	BEGIN_NVC0(chan, NvSub2D, 0x0290, 1);
201	OUT_RING  (chan, 0);
202	BEGIN_NVC0(chan, NvSub2D, 0x0888, 1);
203	OUT_RING  (chan, 1);
204	BEGIN_NVC0(chan, NvSub2D, 0x02ac, 1);
205	OUT_RING  (chan, 3);
206	BEGIN_NVC0(chan, NvSub2D, 0x02a0, 1);
207	OUT_RING  (chan, 0x55);
208	BEGIN_NVC0(chan, NvSub2D, 0x08c0, 4);
209	OUT_RING  (chan, 0);
210	OUT_RING  (chan, 1);
211	OUT_RING  (chan, 0);
212	OUT_RING  (chan, 1);
213	BEGIN_NVC0(chan, NvSub2D, 0x0580, 2);
214	OUT_RING  (chan, 4);
215	OUT_RING  (chan, format);
216	BEGIN_NVC0(chan, NvSub2D, 0x02e8, 2);
217	OUT_RING  (chan, 2);
218	OUT_RING  (chan, 1);
219
220	BEGIN_NVC0(chan, NvSub2D, 0x0804, 1);
221	OUT_RING  (chan, format);
222	BEGIN_NVC0(chan, NvSub2D, 0x0800, 1);
223	OUT_RING  (chan, 1);
224	BEGIN_NVC0(chan, NvSub2D, 0x0808, 3);
225	OUT_RING  (chan, 0);
226	OUT_RING  (chan, 0);
227	OUT_RING  (chan, 1);
228	BEGIN_NVC0(chan, NvSub2D, 0x081c, 1);
229	OUT_RING  (chan, 1);
230	BEGIN_NVC0(chan, NvSub2D, 0x0840, 4);
231	OUT_RING  (chan, 0);
232	OUT_RING  (chan, 1);
233	OUT_RING  (chan, 0);
234	OUT_RING  (chan, 1);
235	BEGIN_NVC0(chan, NvSub2D, 0x0200, 10);
236	OUT_RING  (chan, format);
237	OUT_RING  (chan, 1);
238	OUT_RING  (chan, 0);
239	OUT_RING  (chan, 1);
240	OUT_RING  (chan, 0);
241	OUT_RING  (chan, info->fix.line_length);
242	OUT_RING  (chan, info->var.xres_virtual);
243	OUT_RING  (chan, info->var.yres_virtual);
244	OUT_RING  (chan, upper_32_bits(fb->vma.offset));
245	OUT_RING  (chan, lower_32_bits(fb->vma.offset));
246	BEGIN_NVC0(chan, NvSub2D, 0x0230, 10);
247	OUT_RING  (chan, format);
248	OUT_RING  (chan, 1);
249	OUT_RING  (chan, 0);
250	OUT_RING  (chan, 1);
251	OUT_RING  (chan, 0);
252	OUT_RING  (chan, info->fix.line_length);
253	OUT_RING  (chan, info->var.xres_virtual);
254	OUT_RING  (chan, info->var.yres_virtual);
255	OUT_RING  (chan, upper_32_bits(fb->vma.offset));
256	OUT_RING  (chan, lower_32_bits(fb->vma.offset));
257	FIRE_RING (chan);
258
259	return 0;
260}
261
262