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/* Copyright (c) 2019, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "edrm_connector.h"
struct edrm_connector {
struct drm_connector base;
struct drm_encoder *encoder;
struct msm_edrm_display *display;
};
#define to_edrm_connector(x) container_of(x, struct edrm_connector, base)
static enum drm_connector_status
edrm_connector_detect(struct drm_connector *conn, bool force)
{
return connector_status_connected;
}
static int
edrm_connector_get_modes(struct drm_connector *connector)
{
struct edrm_connector *edrm_conn = to_edrm_connector(connector);
struct drm_display_mode *m;
m = drm_mode_duplicate(connector->dev, &edrm_conn->display->mode);
if (m == NULL) {
pr_err("edrm drm_mode_duplicate failed\n");
return 0;
}
drm_mode_set_name(m);
drm_mode_probed_add(connector, m);
return 1;
}
static enum drm_mode_status
edrm_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode)
{
return MODE_OK;
}
static struct drm_encoder *
edrm_connector_best_encoder(struct drm_connector *connector)
{
struct edrm_connector *edrm_conn = to_edrm_connector(connector);
return edrm_conn->encoder;
}
void edrm_connector_destroy(struct drm_connector *connector)
{
struct edrm_connector *edrm_conn = to_edrm_connector(connector);
drm_connector_unregister(connector);
drm_connector_cleanup(connector);
kfree(edrm_conn);
}
static const struct drm_connector_helper_funcs edrm_connector_helper_funcs = {
.get_modes = edrm_connector_get_modes,
.mode_valid = edrm_mode_valid,
.best_encoder = edrm_connector_best_encoder,
};
static const struct drm_connector_funcs edrm_connector_funcs = {
.fill_modes = drm_helper_probe_single_connector_modes,
.detect = edrm_connector_detect,
.destroy = edrm_connector_destroy,
.reset = drm_atomic_helper_connector_reset,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
struct drm_connector *edrm_connector_init(struct drm_device *dev,
struct drm_encoder *encoder,
struct msm_edrm_display *display)
{
struct edrm_connector *edrm_conn;
struct drm_connector *connector;
int ret;
edrm_conn = kzalloc(sizeof(*edrm_conn), GFP_KERNEL);
if (!edrm_conn)
return ERR_PTR(-ENOMEM);
connector = &edrm_conn->base;
ret = drm_connector_init(dev, connector,
&edrm_connector_funcs,
display->connector_type);
if (ret) {
pr_err("edrm drm_connector_init failed\n");
goto fail;
}
drm_connector_helper_add(connector, &edrm_connector_helper_funcs);
edrm_conn->display = display;
edrm_conn->encoder = encoder;
ret = drm_connector_register(&edrm_conn->base);
if (ret) {
pr_err("failed to register drm connector, %d\n", ret);
goto fail;
}
ret = drm_mode_connector_attach_encoder(&edrm_conn->base, encoder);
if (ret) {
pr_err("failed to attach encoder to connector, %d\n", ret);
goto fail;
}
return connector;
fail:
kfree(edrm_conn);
return ERR_PTR(ret);
}
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