159 lines
4.0 KiB
C
159 lines
4.0 KiB
C
/*
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* Copyright (C) 2012 Russell King
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <drm/drmP.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_edid.h>
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#include <drm/drm_encoder_slave.h>
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#include "armada_output.h"
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#include "armada_drm.h"
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struct armada_connector {
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struct drm_connector conn;
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const struct armada_output_type *type;
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};
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#define drm_to_armada_conn(c) container_of(c, struct armada_connector, conn)
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struct drm_encoder *armada_drm_connector_encoder(struct drm_connector *conn)
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{
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struct drm_encoder *enc = conn->encoder;
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return enc ? enc : drm_encoder_find(conn->dev, conn->encoder_ids[0]);
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}
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static enum drm_connector_status armada_drm_connector_detect(
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struct drm_connector *conn, bool force)
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{
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struct armada_connector *dconn = drm_to_armada_conn(conn);
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enum drm_connector_status status = connector_status_disconnected;
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if (dconn->type->detect) {
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status = dconn->type->detect(conn, force);
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} else {
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struct drm_encoder *enc = armada_drm_connector_encoder(conn);
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if (enc)
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status = encoder_helper_funcs(enc)->detect(enc, conn);
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}
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return status;
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}
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static void armada_drm_connector_destroy(struct drm_connector *conn)
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{
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struct armada_connector *dconn = drm_to_armada_conn(conn);
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drm_connector_unregister(conn);
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drm_connector_cleanup(conn);
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kfree(dconn);
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}
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static int armada_drm_connector_set_property(struct drm_connector *conn,
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struct drm_property *property, uint64_t value)
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{
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struct armada_connector *dconn = drm_to_armada_conn(conn);
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if (!dconn->type->set_property)
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return -EINVAL;
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return dconn->type->set_property(conn, property, value);
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}
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static const struct drm_connector_funcs armada_drm_conn_funcs = {
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.dpms = drm_helper_connector_dpms,
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.fill_modes = drm_helper_probe_single_connector_modes,
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.detect = armada_drm_connector_detect,
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.destroy = armada_drm_connector_destroy,
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.set_property = armada_drm_connector_set_property,
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};
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void armada_drm_encoder_prepare(struct drm_encoder *encoder)
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{
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encoder_helper_funcs(encoder)->dpms(encoder, DRM_MODE_DPMS_OFF);
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}
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void armada_drm_encoder_commit(struct drm_encoder *encoder)
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{
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encoder_helper_funcs(encoder)->dpms(encoder, DRM_MODE_DPMS_ON);
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}
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bool armada_drm_encoder_mode_fixup(struct drm_encoder *encoder,
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const struct drm_display_mode *mode, struct drm_display_mode *adjusted)
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{
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return true;
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}
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/* Shouldn't this be a generic helper function? */
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int armada_drm_slave_encoder_mode_valid(struct drm_connector *conn,
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struct drm_display_mode *mode)
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{
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struct drm_encoder *encoder = armada_drm_connector_encoder(conn);
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int valid = MODE_BAD;
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if (encoder) {
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struct drm_encoder_slave *slave = to_encoder_slave(encoder);
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valid = slave->slave_funcs->mode_valid(encoder, mode);
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}
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return valid;
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}
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int armada_drm_slave_encoder_set_property(struct drm_connector *conn,
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struct drm_property *property, uint64_t value)
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{
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struct drm_encoder *encoder = armada_drm_connector_encoder(conn);
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int rc = -EINVAL;
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if (encoder) {
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struct drm_encoder_slave *slave = to_encoder_slave(encoder);
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rc = slave->slave_funcs->set_property(encoder, conn, property,
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value);
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}
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return rc;
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}
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int armada_output_create(struct drm_device *dev,
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const struct armada_output_type *type, const void *data)
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{
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struct armada_connector *dconn;
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int ret;
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dconn = kzalloc(sizeof(*dconn), GFP_KERNEL);
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if (!dconn)
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return -ENOMEM;
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dconn->type = type;
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ret = drm_connector_init(dev, &dconn->conn, &armada_drm_conn_funcs,
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type->connector_type);
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if (ret) {
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DRM_ERROR("unable to init connector\n");
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goto err_destroy_dconn;
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}
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ret = type->create(&dconn->conn, data);
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if (ret)
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goto err_conn;
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ret = drm_connector_register(&dconn->conn);
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if (ret)
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goto err_sysfs;
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return 0;
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err_sysfs:
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if (dconn->conn.encoder)
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dconn->conn.encoder->funcs->destroy(dconn->conn.encoder);
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err_conn:
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drm_connector_cleanup(&dconn->conn);
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err_destroy_dconn:
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kfree(dconn);
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return ret;
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}
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