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_crtc.h>
16#include <drm/drm_crtc_helper.h>
17
18#include "rcar_du_drv.h"
19#include "rcar_du_encoder.h"
20#include "rcar_du_kms.h"
21#include "rcar_du_vgacon.h"
22
23static int rcar_du_vga_connector_get_modes(struct drm_connector *connector)
24{
25	return 0;
26}
27
28static const struct drm_connector_helper_funcs connector_helper_funcs = {
29	.get_modes = rcar_du_vga_connector_get_modes,
30	.best_encoder = rcar_du_connector_best_encoder,
31};
32
33static void rcar_du_vga_connector_destroy(struct drm_connector *connector)
34{
35	drm_connector_unregister(connector);
36	drm_connector_cleanup(connector);
37}
38
39static enum drm_connector_status
40rcar_du_vga_connector_detect(struct drm_connector *connector, bool force)
41{
42	return connector_status_connected;
43}
44
45static const struct drm_connector_funcs connector_funcs = {
46	.dpms = drm_helper_connector_dpms,
47	.detect = rcar_du_vga_connector_detect,
48	.fill_modes = drm_helper_probe_single_connector_modes,
49	.destroy = rcar_du_vga_connector_destroy,
50};
51
52int rcar_du_vga_connector_init(struct rcar_du_device *rcdu,
53			       struct rcar_du_encoder *renc)
54{
55	struct rcar_du_connector *rcon;
56	struct drm_connector *connector;
57	int ret;
58
59	rcon = devm_kzalloc(rcdu->dev, sizeof(*rcon), GFP_KERNEL);
60	if (rcon == NULL)
61		return -ENOMEM;
62
63	connector = &rcon->connector;
64	connector->display_info.width_mm = 0;
65	connector->display_info.height_mm = 0;
66
67	ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs,
68				 DRM_MODE_CONNECTOR_VGA);
69	if (ret < 0)
70		return ret;
71
72	drm_connector_helper_add(connector, &connector_helper_funcs);
73	ret = drm_connector_register(connector);
74	if (ret < 0)
75		return ret;
76
77	drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
78	drm_object_property_set_value(&connector->base,
79		rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
80
81	ret = drm_mode_connector_attach_encoder(connector, &renc->encoder);
82	if (ret < 0)
83		return ret;
84
85	connector->encoder = &renc->encoder;
86	rcon->encoder = renc;
87
88	return 0;
89}
90