143 lines
3.8 KiB
C
143 lines
3.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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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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#ifndef __MDP_KMS_H__
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#define __MDP_KMS_H__
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#include <linux/clk.h>
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#include <linux/platform_device.h>
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#include <linux/regulator/consumer.h>
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#include "msm_drv.h"
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#include "msm_kms.h"
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#include "mdp_common.xml.h"
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struct mdp_kms;
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struct mdp_kms_funcs {
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struct msm_kms_funcs base;
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void (*set_irqmask)(struct mdp_kms *mdp_kms, uint32_t irqmask,
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uint32_t old_irqmask);
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};
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struct mdp_kms {
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struct msm_kms base;
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const struct mdp_kms_funcs *funcs;
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/* irq handling: */
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bool in_irq;
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struct list_head irq_list; /* list of mdp4_irq */
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uint32_t vblank_mask; /* irq bits set for userspace vblank */
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uint32_t cur_irq_mask; /* current irq mask */
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};
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#define to_mdp_kms(x) container_of(x, struct mdp_kms, base)
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static inline int mdp_kms_init(struct mdp_kms *mdp_kms,
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const struct mdp_kms_funcs *funcs)
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{
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mdp_kms->funcs = funcs;
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INIT_LIST_HEAD(&mdp_kms->irq_list);
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return msm_kms_init(&mdp_kms->base, &funcs->base);
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}
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static inline void mdp_kms_destroy(struct mdp_kms *mdp_kms)
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{
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msm_kms_destroy(&mdp_kms->base);
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}
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/*
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* irq helpers:
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*/
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/* For transiently registering for different MDP irqs that various parts
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* of the KMS code need during setup/configuration. These are not
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* necessarily the same as what drm_vblank_get/put() are requesting, and
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* the hysteresis in drm_vblank_put() is not necessarily desirable for
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* internal housekeeping related irq usage.
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*/
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struct mdp_irq {
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struct list_head node;
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uint32_t irqmask;
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bool registered;
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void (*irq)(struct mdp_irq *irq, uint32_t irqstatus);
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};
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void mdp_dispatch_irqs(struct mdp_kms *mdp_kms, uint32_t status);
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void mdp_update_vblank_mask(struct mdp_kms *mdp_kms, uint32_t mask, bool enable);
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void mdp_irq_wait(struct mdp_kms *mdp_kms, uint32_t irqmask);
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void mdp_irq_register(struct mdp_kms *mdp_kms, struct mdp_irq *irq);
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void mdp_irq_unregister(struct mdp_kms *mdp_kms, struct mdp_irq *irq);
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void mdp_irq_update(struct mdp_kms *mdp_kms);
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/*
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* pixel format helpers:
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*/
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struct mdp_format {
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struct msm_format base;
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enum mdp_bpc bpc_r, bpc_g, bpc_b;
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enum mdp_bpc_alpha bpc_a;
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uint8_t unpack[4];
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bool alpha_enable, unpack_tight;
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uint8_t cpp, unpack_count;
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enum mdp_fetch_type fetch_type;
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enum mdp_chroma_samp_type chroma_sample;
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bool is_yuv;
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};
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#define to_mdp_format(x) container_of(x, struct mdp_format, base)
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#define MDP_FORMAT_IS_YUV(mdp_format) ((mdp_format)->is_yuv)
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uint32_t mdp_get_formats(uint32_t *formats, uint32_t max_formats, bool rgb_only);
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const struct msm_format *mdp_get_format(struct msm_kms *kms, uint32_t format, uint64_t modifier);
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/* MDP capabilities */
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#define MDP_CAP_SMP BIT(0) /* Shared Memory Pool */
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#define MDP_CAP_DSC BIT(1) /* VESA Display Stream Compression */
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#define MDP_CAP_CDM BIT(2) /* Chroma Down Module (HDMI 2.0 YUV) */
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#define MDP_CAP_SRC_SPLIT BIT(3) /* Source Split of SSPPs */
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/* MDP pipe capabilities */
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#define MDP_PIPE_CAP_HFLIP BIT(0)
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#define MDP_PIPE_CAP_VFLIP BIT(1)
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#define MDP_PIPE_CAP_SCALE BIT(2)
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#define MDP_PIPE_CAP_CSC BIT(3)
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#define MDP_PIPE_CAP_DECIMATION BIT(4)
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#define MDP_PIPE_CAP_SW_PIX_EXT BIT(5)
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#define MDP_PIPE_CAP_CURSOR BIT(6)
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/* MDP layer mixer caps */
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#define MDP_LM_CAP_DISPLAY BIT(0)
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#define MDP_LM_CAP_WB BIT(1)
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#define MDP_LM_CAP_PAIR BIT(2)
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static inline bool pipe_supports_yuv(uint32_t pipe_caps)
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{
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return (pipe_caps & MDP_PIPE_CAP_SCALE) &&
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(pipe_caps & MDP_PIPE_CAP_CSC);
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}
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enum csc_type {
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CSC_RGB2RGB = 0,
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CSC_YUV2RGB,
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CSC_RGB2YUV,
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CSC_YUV2YUV,
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CSC_MAX
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};
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struct csc_cfg {
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enum csc_type type;
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uint32_t matrix[9];
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uint32_t pre_bias[3];
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uint32_t post_bias[3];
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uint32_t pre_clamp[6];
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uint32_t post_clamp[6];
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};
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struct csc_cfg *mdp_get_default_csc_cfg(enum csc_type);
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#endif /* __MDP_KMS_H__ */
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