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
|
/* $OpenBSD: simplepanel.c,v 1.3 2020/06/08 04:47:58 jsg Exp $ */
/*
* Copyright (c) 2020 Patrick Wildt <patrick@blueri.se>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <machine/fdt.h>
#include <dev/ofw/openfirm.h>
#include <dev/ofw/ofw_gpio.h>
#include <dev/ofw/ofw_misc.h>
#include <dev/ofw/ofw_pinctrl.h>
#include <dev/ofw/ofw_regulator.h>
#include <drm/drm_modes.h>
#include <drm/drm_panel.h>
const struct drm_display_mode boe_nv140fhmn49_mode = {
.clock = 148500,
.hdisplay = 1920,
.hsync_start = 1920 + 48,
.hsync_end = 1920 + 48 + 32,
.htotal = 2200,
.vdisplay = 1080,
.vsync_start = 1080 + 3,
.vsync_end = 1080 + 3 + 5,
.vtotal = 1125,
.vrefresh = 60,
};
int simplepanel_match(struct device *, void *, void *);
void simplepanel_attach(struct device *, struct device *, void *);
struct simplepanel_softc {
struct device sc_dev;
struct device_ports sc_ports;
struct drm_panel sc_panel;
const struct drm_display_mode *sc_mode;
};
struct cfattach simplepanel_ca = {
sizeof (struct simplepanel_softc),
simplepanel_match, simplepanel_attach
};
struct cfdriver simplepanel_cd = {
NULL, "simplepanel", DV_DULL
};
void *simplepanel_ep_get_cookie(void *, struct endpoint *);
int simplepanel_get_modes(struct drm_panel *, struct drm_connector *);
struct drm_panel_funcs simplepanel_funcs = {
.get_modes = simplepanel_get_modes
};
int
simplepanel_match(struct device *parent, void *match, void *aux)
{
struct fdt_attach_args *faa = aux;
return (OF_is_compatible(faa->fa_node, "simple-panel") ||
OF_is_compatible(faa->fa_node, "boe,nv140fhmn49"));
}
void
simplepanel_attach(struct device *parent, struct device *self, void *aux)
{
struct simplepanel_softc *sc = (struct simplepanel_softc *)self;
struct fdt_attach_args *faa = aux;
uint32_t power_supply;
uint32_t *gpios;
int connector_type = DRM_MODE_CONNECTOR_Unknown;
int len, err;
pinctrl_byname(faa->fa_node, "default");
power_supply = OF_getpropint(faa->fa_node, "power-supply", 0);
if (power_supply)
regulator_enable(power_supply);
len = OF_getproplen(faa->fa_node, "enable-gpios");
if (len > 0) {
gpios = malloc(len, M_TEMP, M_WAITOK);
OF_getpropintarray(faa->fa_node, "enable-gpios", gpios, len);
gpio_controller_config_pin(&gpios[0], GPIO_CONFIG_OUTPUT);
gpio_controller_set_pin(&gpios[0], 1);
free(gpios, M_TEMP, len);
}
if (OF_is_compatible(faa->fa_node, "boe,nv140fhmn49")) {
sc->sc_mode = &boe_nv140fhmn49_mode;
connector_type = DRM_MODE_CONNECTOR_eDP;
}
drm_panel_init(&sc->sc_panel, self, &simplepanel_funcs,
connector_type);
err = drm_panel_add(&sc->sc_panel);
if (err < 0) {
printf(": can't register panel\n");
return;
}
printf("\n");
sc->sc_ports.dp_node = faa->fa_node;
sc->sc_ports.dp_cookie = sc;
sc->sc_ports.dp_ep_get_cookie = simplepanel_ep_get_cookie;
device_ports_register(&sc->sc_ports, EP_DRM_PANEL);
}
void *
simplepanel_ep_get_cookie(void *cookie, struct endpoint *ep)
{
struct simplepanel_softc *sc = cookie;
return &sc->sc_panel;
}
static inline struct simplepanel_softc *
to_simplepanel(struct drm_panel *panel)
{
return container_of(panel, struct simplepanel_softc, sc_panel);
}
int
simplepanel_get_modes(struct drm_panel *panel, struct drm_connector *connector)
{
struct simplepanel_softc *sc = to_simplepanel(panel);
struct drm_display_mode *mode;
if (sc->sc_mode == NULL)
return 0;
mode = drm_mode_duplicate(connector->dev, sc->sc_mode);
if (mode == NULL)
return 0;
mode->type |= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
drm_mode_set_name(mode);
drm_mode_probed_add(connector, mode);
return 1;
}
|
