nouveau_dispnv04_disp.c revision 1.2 
1/*	$NetBSD: nouveau_dispnv04_disp.c,v 1.2 2014/08/06 15:01:34 riastradh Exp $	*/
2
3/*
4 * Copyright 2009 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Author: Ben Skeggs
25 */
26
27#include <sys/cdefs.h>
28__KERNEL_RCSID(0, "$NetBSD: nouveau_dispnv04_disp.c,v 1.2 2014/08/06 15:01:34 riastradh Exp $");
29
30#include <linux/err.h>
31
32#include <core/object.h>
33#include <core/class.h>
34
35#include <drm/drmP.h>
36#include <drm/drm_crtc_helper.h>
37
38#include "nouveau_drm.h"
39#include "nouveau_reg.h"
40#include "hw.h"
41#include "nouveau_encoder.h"
42#include "nouveau_connector.h"
43
44#include <subdev/i2c.h>
45
46int
47nv04_display_early_init(struct drm_device *dev)
48{
49	/* ensure vblank interrupts are off, they can't be enabled until
50	 * drm_vblank has been initialised
51	 */
52	NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0);
53	if (nv_two_heads(dev))
54		NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0);
55
56	return 0;
57}
58
59void
60nv04_display_late_takedown(struct drm_device *dev)
61{
62}
63
64int
65nv04_display_create(struct drm_device *dev)
66{
67	struct nouveau_drm *drm = nouveau_drm(dev);
68	struct nouveau_i2c *i2c = nouveau_i2c(drm->device);
69	struct dcb_table *dcb = &drm->vbios.dcb;
70	struct drm_connector *connector, *ct;
71	struct drm_encoder *encoder;
72	struct drm_crtc *crtc;
73	struct nv04_display *disp;
74	int i, ret;
75
76	disp = kzalloc(sizeof(*disp), GFP_KERNEL);
77	if (!disp)
78		return -ENOMEM;
79
80	nouveau_display(dev)->priv = disp;
81	nouveau_display(dev)->dtor = nv04_display_destroy;
82	nouveau_display(dev)->init = nv04_display_init;
83	nouveau_display(dev)->fini = nv04_display_fini;
84
85	nouveau_hw_save_vga_fonts(dev, 1);
86
87	nv04_crtc_create(dev, 0);
88	if (nv_two_heads(dev))
89		nv04_crtc_create(dev, 1);
90
91	for (i = 0; i < dcb->entries; i++) {
92		struct dcb_output *dcbent = &dcb->entry[i];
93
94		connector = nouveau_connector_create(dev, dcbent->connector);
95		if (IS_ERR(connector))
96			continue;
97
98		switch (dcbent->type) {
99		case DCB_OUTPUT_ANALOG:
100			ret = nv04_dac_create(connector, dcbent);
101			break;
102		case DCB_OUTPUT_LVDS:
103		case DCB_OUTPUT_TMDS:
104			ret = nv04_dfp_create(connector, dcbent);
105			break;
106		case DCB_OUTPUT_TV:
107			if (dcbent->location == DCB_LOC_ON_CHIP)
108				ret = nv17_tv_create(connector, dcbent);
109			else
110				ret = nv04_tv_create(connector, dcbent);
111			break;
112		default:
113			NV_WARN(drm, "DCB type %d not known\n", dcbent->type);
114			continue;
115		}
116
117		if (ret)
118			continue;
119	}
120
121	list_for_each_entry_safe(connector, ct,
122				 &dev->mode_config.connector_list, head) {
123		if (!connector->encoder_ids[0]) {
124			NV_WARN(drm, "%s has no encoders, removing\n",
125				drm_get_connector_name(connector));
126			connector->funcs->destroy(connector);
127		}
128	}
129
130	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
131		struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
132		nv_encoder->i2c = i2c->find(i2c, nv_encoder->dcb->i2c_index);
133	}
134
135	/* Save previous state */
136	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
137		crtc->funcs->save(crtc);
138
139	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
140		struct drm_encoder_helper_funcs *func = encoder->helper_private;
141
142		func->save(encoder);
143	}
144
145	nouveau_overlay_init(dev);
146
147	return 0;
148}
149
150void
151nv04_display_destroy(struct drm_device *dev)
152{
153	struct nv04_display *disp = nv04_display(dev);
154	struct drm_encoder *encoder;
155	struct drm_crtc *crtc;
156
157	/* Turn every CRTC off. */
158	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
159		struct drm_mode_set modeset = {
160			.crtc = crtc,
161		};
162
163		drm_mode_set_config_internal(&modeset);
164	}
165
166	/* Restore state */
167	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
168		struct drm_encoder_helper_funcs *func = encoder->helper_private;
169
170		func->restore(encoder);
171	}
172
173	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
174		crtc->funcs->restore(crtc);
175
176	nouveau_hw_save_vga_fonts(dev, 0);
177
178	nouveau_display(dev)->priv = NULL;
179	kfree(disp);
180}
181
182int
183nv04_display_init(struct drm_device *dev)
184{
185	struct drm_encoder *encoder;
186	struct drm_crtc *crtc;
187
188	/* meh.. modeset apparently doesn't setup all the regs and depends
189	 * on pre-existing state, for now load the state of the card *before*
190	 * nouveau was loaded, and then do a modeset.
191	 *
192	 * best thing to do probably is to make save/restore routines not
193	 * save/restore "pre-load" state, but more general so we can save
194	 * on suspend too.
195	 */
196	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
197		struct drm_encoder_helper_funcs *func = encoder->helper_private;
198
199		func->restore(encoder);
200	}
201
202	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
203		crtc->funcs->restore(crtc);
204
205	return 0;
206}
207
208void
209nv04_display_fini(struct drm_device *dev)
210{
211	/* disable vblank interrupts */
212	NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0);
213	if (nv_two_heads(dev))
214		NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0);
215}
216