/*
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License 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.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __MSM_KMS_H__
#define __MSM_KMS_H__
#include <linux/clk.h>
#include <linux/regulator/consumer.h>
#include "msm_drv.h"
/* As there are different display controller blocks depending on the
* snapdragon version, the kms support is split out and the appropriate
* implementation is loaded at runtime. The kms module is responsible
* for constructing the appropriate planes/crtcs/encoders/connectors.
*/
struct msm_kms_funcs {
/* hw initialization: */
int (*hw_init)(struct msm_kms *kms);
/* irq handling: */
void (*irq_preinstall)(struct msm_kms *kms);
int (*irq_postinstall)(struct msm_kms *kms);
void (*irq_uninstall)(struct msm_kms *kms);
irqreturn_t (*irq)(struct msm_kms *kms);
int (*enable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc);
void (*disable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc);
/* misc: */
const struct msm_format *(*get_format)(struct msm_kms *kms, uint32_t format);
long (*round_pixclk)(struct msm_kms *kms, unsigned long rate,
struct drm_encoder *encoder);
/* cleanup: */
void (*preclose)(struct msm_kms *kms, struct drm_file *file);
void (*destroy)(struct msm_kms *kms);
};
struct msm_kms {
const struct msm_kms_funcs *funcs;
/* irq handling: */
bool in_irq;
struct list_head irq_list; /* list of mdp4_irq */
uint32_t vblank_mask; /* irq bits set for userspace vblank */
};
static inline void msm_kms_init(struct msm_kms *kms,
const struct msm_kms_funcs *funcs)
{
kms->funcs = funcs;
}
struct msm_kms *mdp4_kms_init(struct drm_device *dev);
struct msm_kms *mdp5_kms_init(struct drm_device *dev);
/* TODO move these helper iterator macro somewhere common: */
#define for_each_plane_on_crtc(_crtc, _plane) \
list_for_each_entry((_plane), &(_crtc)->dev->mode_config.plane_list, head) \
if ((_plane)->state->crtc == (_crtc))
static inline bool
__plane_will_be_attached_to_crtc(struct drm_atomic_state *state,
struct drm_plane *plane, struct drm_crtc *crtc)
{
int idx = drm_plane_index(plane);
/* if plane is modified in incoming state, use the new state: */
if (state->plane_states[idx])
return state->plane_states[idx]->crtc == crtc;
/* otherwise, current state: */
return plane->state->crtc == crtc;
}
#define for_each_pending_plane_on_crtc(_state, _crtc, _plane) \
list_for_each_entry((_plane), &(_crtc)->dev->mode_config.plane_list, head) \
if (__plane_will_be_attached_to_crtc((_state), (_plane), (_crtc)))
#endif /* __MSM_KMS_H__ */
