172 lines
4.5 KiB
C
172 lines
4.5 KiB
C
/*
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* drivers/staging/omapdrm/omap_encoder.c
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*
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* Copyright (C) 2011 Texas Instruments
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* Author: Rob Clark <rob@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "omap_drv.h"
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#include "drm_crtc.h"
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#include "drm_crtc_helper.h"
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/*
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* encoder funcs
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*/
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#define to_omap_encoder(x) container_of(x, struct omap_encoder, base)
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struct omap_encoder {
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struct drm_encoder base;
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struct omap_overlay_manager *mgr;
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};
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static void omap_encoder_destroy(struct drm_encoder *encoder)
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{
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struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
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DBG("%s", omap_encoder->mgr->name);
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drm_encoder_cleanup(encoder);
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kfree(omap_encoder);
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}
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static void omap_encoder_dpms(struct drm_encoder *encoder, int mode)
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{
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struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
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DBG("%s: %d", omap_encoder->mgr->name, mode);
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}
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static bool omap_encoder_mode_fixup(struct drm_encoder *encoder,
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struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode)
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{
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struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
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DBG("%s", omap_encoder->mgr->name);
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return true;
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}
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static void omap_encoder_mode_set(struct drm_encoder *encoder,
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struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode)
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{
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struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
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struct drm_device *dev = encoder->dev;
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struct omap_drm_private *priv = dev->dev_private;
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int i;
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mode = adjusted_mode;
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DBG("%s: set mode: %dx%d", omap_encoder->mgr->name,
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mode->hdisplay, mode->vdisplay);
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for (i = 0; i < priv->num_connectors; i++) {
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struct drm_connector *connector = priv->connectors[i];
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if (connector->encoder == encoder) {
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omap_connector_mode_set(connector, mode);
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}
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}
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}
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static void omap_encoder_prepare(struct drm_encoder *encoder)
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{
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struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
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struct drm_encoder_helper_funcs *encoder_funcs =
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encoder->helper_private;
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DBG("%s", omap_encoder->mgr->name);
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encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF);
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}
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static void omap_encoder_commit(struct drm_encoder *encoder)
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{
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struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
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struct drm_encoder_helper_funcs *encoder_funcs =
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encoder->helper_private;
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DBG("%s", omap_encoder->mgr->name);
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omap_encoder->mgr->apply(omap_encoder->mgr);
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encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
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}
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static const struct drm_encoder_funcs omap_encoder_funcs = {
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.destroy = omap_encoder_destroy,
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};
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static const struct drm_encoder_helper_funcs omap_encoder_helper_funcs = {
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.dpms = omap_encoder_dpms,
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.mode_fixup = omap_encoder_mode_fixup,
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.mode_set = omap_encoder_mode_set,
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.prepare = omap_encoder_prepare,
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.commit = omap_encoder_commit,
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};
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struct omap_overlay_manager *omap_encoder_get_manager(
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struct drm_encoder *encoder)
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{
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struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
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return omap_encoder->mgr;
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}
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/* initialize encoder */
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struct drm_encoder *omap_encoder_init(struct drm_device *dev,
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struct omap_overlay_manager *mgr)
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{
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struct drm_encoder *encoder = NULL;
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struct omap_encoder *omap_encoder;
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struct omap_overlay_manager_info info;
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int ret;
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DBG("%s", mgr->name);
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omap_encoder = kzalloc(sizeof(*omap_encoder), GFP_KERNEL);
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if (!omap_encoder) {
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dev_err(dev->dev, "could not allocate encoder\n");
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goto fail;
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}
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omap_encoder->mgr = mgr;
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encoder = &omap_encoder->base;
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drm_encoder_init(dev, encoder, &omap_encoder_funcs,
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DRM_MODE_ENCODER_TMDS);
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drm_encoder_helper_add(encoder, &omap_encoder_helper_funcs);
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mgr->get_manager_info(mgr, &info);
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/* TODO: fix hard-coded setup.. */
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info.default_color = 0x00000000;
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info.trans_key = 0x00000000;
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info.trans_key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
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info.trans_enabled = false;
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ret = mgr->set_manager_info(mgr, &info);
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if (ret) {
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dev_err(dev->dev, "could not set manager info\n");
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goto fail;
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}
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ret = mgr->apply(mgr);
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if (ret) {
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dev_err(dev->dev, "could not apply\n");
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goto fail;
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}
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return encoder;
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fail:
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if (encoder) {
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omap_encoder_destroy(encoder);
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}
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return NULL;
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}
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