1/*
2 * rcar_du_vgacon.c  --  R-Car Display Unit VGA Connector
3 *
4 * Copyright (C) 2013-2014 Renesas Electronics Corporation
5 *
6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#include <drm/drmP.h>
15#include <drm/drm_atomic_helper.h>
16#include <drm/drm_crtc.h>
17#include <drm/drm_crtc_helper.h>
18
19#include "rcar_du_drv.h"
20#include "rcar_du_encoder.h"
21#include "rcar_du_kms.h"
22#include "rcar_du_vgacon.h"
23
24static int rcar_du_vga_connector_get_modes(struct drm_connector *connector)
25{
26	return 0;
27}
28
29static const struct drm_connector_helper_funcs connector_helper_funcs = {
30	.get_modes = rcar_du_vga_connector_get_modes,
31	.best_encoder = rcar_du_connector_best_encoder,
32};
33
34static void rcar_du_vga_connector_destroy(struct drm_connector *connector)
35{
36	drm_connector_unregister(connector);
37	drm_connector_cleanup(connector);
38}
39
40static enum drm_connector_status
41rcar_du_vga_connector_detect(struct drm_connector *connector, bool force)
42{
43	return connector_status_connected;
44}
45
46static const struct drm_connector_funcs connector_funcs = {
47	.dpms = drm_atomic_helper_connector_dpms,
48	.reset = drm_atomic_helper_connector_reset,
49	.detect = rcar_du_vga_connector_detect,
50	.fill_modes = drm_helper_probe_single_connector_modes,
51	.destroy = rcar_du_vga_connector_destroy,
52	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
53	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
54};
55
56int rcar_du_vga_connector_init(struct rcar_du_device *rcdu,
57			       struct rcar_du_encoder *renc)
58{
59	struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(renc);
60	struct rcar_du_connector *rcon;
61	struct drm_connector *connector;
62	int ret;
63
64	rcon = devm_kzalloc(rcdu->dev, sizeof(*rcon), GFP_KERNEL);
65	if (rcon == NULL)
66		return -ENOMEM;
67
68	connector = &rcon->connector;
69	connector->display_info.width_mm = 0;
70	connector->display_info.height_mm = 0;
71	connector->interlace_allowed = true;
72
73	ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs,
74				 DRM_MODE_CONNECTOR_VGA);
75	if (ret < 0)
76		return ret;
77
78	drm_connector_helper_add(connector, &connector_helper_funcs);
79	ret = drm_connector_register(connector);
80	if (ret < 0)
81		return ret;
82
83	connector->dpms = DRM_MODE_DPMS_OFF;
84	drm_object_property_set_value(&connector->base,
85		rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
86
87	ret = drm_mode_connector_attach_encoder(connector, encoder);
88	if (ret < 0)
89		return ret;
90
91	rcon->encoder = renc;
92
93	return 0;
94}
95