1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
// SPDX-License-Identifier: GPL-2.0
/*
* (C) COPYRIGHT 2018 ARM Limited. All rights reserved.
* Author: James.Qian.Wang <james.qian.wang@arm.com>
*
*/
#include "komeda_dev.h"
#include "komeda_kms.h"
static int
komeda_wb_init_data_flow(struct komeda_layer *wb_layer,
struct drm_connector_state *conn_st,
struct komeda_crtc_state *kcrtc_st,
struct komeda_data_flow_cfg *dflow)
{
struct drm_framebuffer *fb = conn_st->writeback_job->fb;
memset(dflow, 0, sizeof(*dflow));
dflow->out_w = fb->width;
dflow->out_h = fb->height;
/* the write back data comes from the compiz */
pipeline_composition_size(kcrtc_st, &dflow->in_w, &dflow->in_h);
dflow->input.component = &wb_layer->base.pipeline->compiz->base;
/* compiz doesn't output alpha */
dflow->pixel_blend_mode = DRM_MODE_BLEND_PIXEL_NONE;
dflow->rot = DRM_MODE_ROTATE_0;
komeda_complete_data_flow_cfg(wb_layer, dflow, fb);
return 0;
}
static int
komeda_wb_encoder_atomic_check(struct drm_encoder *encoder,
struct drm_crtc_state *crtc_st,
struct drm_connector_state *conn_st)
{
struct komeda_crtc_state *kcrtc_st = to_kcrtc_st(crtc_st);
struct drm_writeback_job *writeback_job = conn_st->writeback_job;
struct komeda_layer *wb_layer;
struct komeda_data_flow_cfg dflow;
int err;
if (!writeback_job || !writeback_job->fb) {
return 0;
}
if (!crtc_st->active) {
DRM_DEBUG_ATOMIC("Cannot write the composition result out on a inactive CRTC.\n");
return -EINVAL;
}
wb_layer = to_kconn(to_wb_conn(conn_st->connector))->wb_layer;
/*
* No need for a full modested when the only connector changed is the
* writeback connector.
*/
if (crtc_st->connectors_changed &&
is_only_changed_connector(crtc_st, conn_st->connector))
crtc_st->connectors_changed = false;
err = komeda_wb_init_data_flow(wb_layer, conn_st, kcrtc_st, &dflow);
if (err)
return err;
if (dflow.en_split)
err = komeda_build_wb_split_data_flow(wb_layer,
conn_st, kcrtc_st, &dflow);
else
err = komeda_build_wb_data_flow(wb_layer,
conn_st, kcrtc_st, &dflow);
return err;
}
static const struct drm_encoder_helper_funcs komeda_wb_encoder_helper_funcs = {
.atomic_check = komeda_wb_encoder_atomic_check,
};
static int
komeda_wb_connector_get_modes(struct drm_connector *connector)
{
return 0;
}
static enum drm_mode_status
komeda_wb_connector_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct drm_device *dev = connector->dev;
struct drm_mode_config *mode_config = &dev->mode_config;
int w = mode->hdisplay, h = mode->vdisplay;
if ((w < mode_config->min_width) || (w > mode_config->max_width))
return MODE_BAD_HVALUE;
if ((h < mode_config->min_height) || (h > mode_config->max_height))
return MODE_BAD_VVALUE;
return MODE_OK;
}
static const struct drm_connector_helper_funcs komeda_wb_conn_helper_funcs = {
.get_modes = komeda_wb_connector_get_modes,
.mode_valid = komeda_wb_connector_mode_valid,
};
static enum drm_connector_status
komeda_wb_connector_detect(struct drm_connector *connector, bool force)
{
return connector_status_connected;
}
static int
komeda_wb_connector_fill_modes(struct drm_connector *connector,
uint32_t maxX, uint32_t maxY)
{
return 0;
}
static void komeda_wb_connector_destroy(struct drm_connector *connector)
{
drm_connector_cleanup(connector);
kfree(to_kconn(to_wb_conn(connector)));
}
static const struct drm_connector_funcs komeda_wb_connector_funcs = {
.reset = drm_atomic_helper_connector_reset,
.detect = komeda_wb_connector_detect,
.fill_modes = komeda_wb_connector_fill_modes,
.destroy = komeda_wb_connector_destroy,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
static int komeda_wb_connector_add(struct komeda_kms_dev *kms,
struct komeda_crtc *kcrtc)
{
struct komeda_dev *mdev = kms->base.dev_private;
struct komeda_wb_connector *kwb_conn;
struct drm_writeback_connector *wb_conn;
u32 *formats, n_formats = 0;
int err;
if (!kcrtc->master->wb_layer)
return 0;
kwb_conn = kzalloc(sizeof(*wb_conn), GFP_KERNEL);
if (!kwb_conn)
return -ENOMEM;
kwb_conn->wb_layer = kcrtc->master->wb_layer;
wb_conn = &kwb_conn->base;
wb_conn->encoder.possible_crtcs = BIT(drm_crtc_index(&kcrtc->base));
formats = komeda_get_layer_fourcc_list(&mdev->fmt_tbl,
kwb_conn->wb_layer->layer_type,
&n_formats);
err = drm_writeback_connector_init(&kms->base, wb_conn,
&komeda_wb_connector_funcs,
&komeda_wb_encoder_helper_funcs,
formats, n_formats);
komeda_put_fourcc_list(formats);
if (err)
return err;
drm_connector_helper_add(&wb_conn->base, &komeda_wb_conn_helper_funcs);
kcrtc->wb_conn = kwb_conn;
return 0;
}
int komeda_kms_add_wb_connectors(struct komeda_kms_dev *kms,
struct komeda_dev *mdev)
{
int i, err;
for (i = 0; i < kms->n_crtcs; i++) {
err = komeda_wb_connector_add(kms, &kms->crtcs[i]);
if (err)
return err;
}
return 0;
}
|
