tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0-only
2/**************************************************************************
3 * Copyright (c) 2007-2011, Intel Corporation.
4 * All Rights Reserved.
5 *
6 **************************************************************************/
7
8#include <drm/drm_framebuffer.h>
9#include <drm/drm_gem_framebuffer_helper.h>
10#include <drm/drm_modeset_helper.h>
11
12#include "framebuffer.h"
13#include "psb_drv.h"
14
15static struct drm_framebuffer *
16psb_user_framebuffer_create(struct drm_device *dev, struct drm_file *filp,
17 const struct drm_format_info *info,
18 const struct drm_mode_fb_cmd2 *cmd)
19{
20 /*
21 * Reject unknown formats, YUV formats, and formats with more than
22 * 4 bytes per pixel.
23 */
24 if (!info->depth || info->cpp[0] > 4)
25 return ERR_PTR(-EINVAL);
26
27 /*
28 * Pitch must be aligned to 64 bytes.
29 */
30 if (cmd->pitches[0] & 63)
31 return ERR_PTR(-EINVAL);
32
33 return drm_gem_fb_create(dev, filp, info, cmd);
34}
35
36static const struct drm_mode_config_funcs psb_mode_funcs = {
37 .fb_create = psb_user_framebuffer_create,
38};
39
40static void psb_setup_outputs(struct drm_device *dev)
41{
42 struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
43 struct drm_connector_list_iter conn_iter;
44 struct drm_connector *connector;
45
46 drm_mode_create_scaling_mode_property(dev);
47
48 /* It is ok for this to fail - we just don't get backlight control */
49 if (!dev_priv->backlight_property)
50 dev_priv->backlight_property = drm_property_create_range(dev, 0,
51 "backlight", 0, 100);
52 dev_priv->ops->output_init(dev);
53
54 drm_connector_list_iter_begin(dev, &conn_iter);
55 drm_for_each_connector_iter(connector, &conn_iter) {
56 struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
57 struct drm_encoder *encoder = &gma_encoder->base;
58 int crtc_mask = 0, clone_mask = 0;
59
60 /* valid crtcs */
61 switch (gma_encoder->type) {
62 case INTEL_OUTPUT_ANALOG:
63 crtc_mask = (1 << 0);
64 clone_mask = (1 << INTEL_OUTPUT_ANALOG);
65 break;
66 case INTEL_OUTPUT_SDVO:
67 crtc_mask = dev_priv->ops->sdvo_mask;
68 clone_mask = 0;
69 break;
70 case INTEL_OUTPUT_LVDS:
71 crtc_mask = dev_priv->ops->lvds_mask;
72 clone_mask = 0;
73 break;
74 case INTEL_OUTPUT_MIPI:
75 crtc_mask = (1 << 0);
76 clone_mask = 0;
77 break;
78 case INTEL_OUTPUT_MIPI2:
79 crtc_mask = (1 << 2);
80 clone_mask = 0;
81 break;
82 case INTEL_OUTPUT_HDMI:
83 crtc_mask = dev_priv->ops->hdmi_mask;
84 clone_mask = (1 << INTEL_OUTPUT_HDMI);
85 break;
86 case INTEL_OUTPUT_DISPLAYPORT:
87 crtc_mask = (1 << 0) | (1 << 1);
88 clone_mask = 0;
89 break;
90 case INTEL_OUTPUT_EDP:
91 crtc_mask = (1 << 1);
92 clone_mask = 0;
93 }
94 encoder->possible_crtcs = crtc_mask;
95 encoder->possible_clones =
96 gma_connector_clones(dev, clone_mask);
97 }
98 drm_connector_list_iter_end(&conn_iter);
99}
100
101void psb_modeset_init(struct drm_device *dev)
102{
103 struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
104 struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
105 int i;
106
107 if (drmm_mode_config_init(dev))
108 return;
109
110 dev->mode_config.min_width = 0;
111 dev->mode_config.min_height = 0;
112
113 dev->mode_config.funcs = &psb_mode_funcs;
114
115 /* num pipes is 2 for PSB but 1 for Mrst */
116 for (i = 0; i < dev_priv->num_pipe; i++)
117 psb_intel_crtc_init(dev, i, mode_dev);
118
119 dev->mode_config.max_width = 4096;
120 dev->mode_config.max_height = 4096;
121
122 psb_setup_outputs(dev);
123
124 if (dev_priv->ops->errata)
125 dev_priv->ops->errata(dev);
126
127 dev_priv->modeset = true;
128}
129
130void psb_modeset_cleanup(struct drm_device *dev)
131{
132 struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
133 if (dev_priv->modeset) {
134 drm_kms_helper_poll_fini(dev);
135 }
136}