112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
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/*
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* Copyright (C) 2013 Red Hat
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* Author: Rob Clark <robdclark@gmail.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 "msm_drv.h"
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#include "mdp5_kms.h"
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void mdp5_set_irqmask(struct mdp_kms *mdp_kms, uint32_t irqmask)
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{
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mdp5_write(to_mdp5_kms(mdp_kms), REG_MDP5_INTR_EN, irqmask);
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}
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static void mdp5_irq_error_handler(struct mdp_irq *irq, uint32_t irqstatus)
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{
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DRM_ERROR("errors: %08x\n", irqstatus);
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}
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void mdp5_irq_preinstall(struct msm_kms *kms)
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{
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struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
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mdp5_write(mdp5_kms, REG_MDP5_INTR_CLEAR, 0xffffffff);
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}
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int mdp5_irq_postinstall(struct msm_kms *kms)
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{
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struct mdp_kms *mdp_kms = to_mdp_kms(kms);
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struct mdp5_kms *mdp5_kms = to_mdp5_kms(mdp_kms);
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struct mdp_irq *error_handler = &mdp5_kms->error_handler;
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error_handler->irq = mdp5_irq_error_handler;
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error_handler->irqmask = MDP5_IRQ_INTF0_UNDER_RUN |
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MDP5_IRQ_INTF1_UNDER_RUN |
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MDP5_IRQ_INTF2_UNDER_RUN |
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MDP5_IRQ_INTF3_UNDER_RUN;
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mdp_irq_register(mdp_kms, error_handler);
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return 0;
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}
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void mdp5_irq_uninstall(struct msm_kms *kms)
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{
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struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
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mdp5_write(mdp5_kms, REG_MDP5_INTR_EN, 0x00000000);
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}
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static void mdp5_irq_mdp(struct mdp_kms *mdp_kms)
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{
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struct mdp5_kms *mdp5_kms = to_mdp5_kms(mdp_kms);
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struct drm_device *dev = mdp5_kms->dev;
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struct msm_drm_private *priv = dev->dev_private;
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unsigned int id;
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uint32_t status;
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status = mdp5_read(mdp5_kms, REG_MDP5_INTR_STATUS);
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mdp5_write(mdp5_kms, REG_MDP5_INTR_CLEAR, status);
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VERB("status=%08x", status);
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mdp_dispatch_irqs(mdp_kms, status);
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for (id = 0; id < priv->num_crtcs; id++)
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if (status & mdp5_crtc_vblank(priv->crtcs[id]))
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drm_handle_vblank(dev, id);
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}
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irqreturn_t mdp5_irq(struct msm_kms *kms)
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{
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struct mdp_kms *mdp_kms = to_mdp_kms(kms);
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struct mdp5_kms *mdp5_kms = to_mdp5_kms(mdp_kms);
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uint32_t intr;
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intr = mdp5_read(mdp5_kms, REG_MDP5_HW_INTR_STATUS);
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VERB("intr=%08x", intr);
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if (intr & MDP5_HW_INTR_STATUS_INTR_MDP)
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mdp5_irq_mdp(mdp_kms);
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if (intr & MDP5_HW_INTR_STATUS_INTR_HDMI)
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hdmi_irq(0, mdp5_kms->hdmi);
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return IRQ_HANDLED;
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}
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int mdp5_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
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{
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mdp_update_vblank_mask(to_mdp_kms(kms),
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mdp5_crtc_vblank(crtc), true);
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return 0;
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}
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void mdp5_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
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{
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mdp_update_vblank_mask(to_mdp_kms(kms),
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mdp5_crtc_vblank(crtc), false);
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}
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