| /* |
| * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved. |
| * 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" |
| |
| #define MAX_PLANE 4 |
| |
| /** |
| * Device Private DRM Mode Flags |
| * drm_mode->private_flags |
| */ |
| /* Connector has interpreted seamless transition request as dynamic fps */ |
| #define MSM_MODE_FLAG_SEAMLESS_DYNAMIC_FPS (1<<0) |
| /* Transition to new mode requires a wait-for-vblank before the modeset */ |
| #define MSM_MODE_FLAG_VBLANK_PRE_MODESET (1<<1) |
| /* Request to switch the connector mode */ |
| #define MSM_MODE_FLAG_SEAMLESS_DMS (1<<2) |
| |
| /* 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); |
| int (*postinit)(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); |
| /* modeset, bracketing atomic_commit(): */ |
| void (*prepare_fence)(struct msm_kms *kms, |
| struct drm_atomic_state *state); |
| void (*prepare_commit)(struct msm_kms *kms, |
| struct drm_atomic_state *state); |
| void (*commit)(struct msm_kms *kms, struct drm_atomic_state *state); |
| void (*complete_commit)(struct msm_kms *kms, |
| struct drm_atomic_state *state); |
| /* functions to wait for atomic commit completed on each CRTC */ |
| void (*wait_for_crtc_commit_done)(struct msm_kms *kms, |
| struct drm_crtc *crtc); |
| /* function pointer to wait for pixel transfer to panel to complete*/ |
| void (*wait_for_tx_complete)(struct msm_kms *kms, |
| struct drm_crtc *crtc); |
| /* get msm_format w/ optional format modifiers from drm_mode_fb_cmd2 */ |
| const struct msm_format *(*get_format)(struct msm_kms *kms, |
| const uint32_t format, |
| const uint64_t *modifiers, |
| const uint32_t modifiers_len); |
| /* do format checking on format modified through fb_cmd2 modifiers */ |
| int (*check_modified_format)(const struct msm_kms *kms, |
| const struct msm_format *msm_fmt, |
| const struct drm_mode_fb_cmd2 *cmd, |
| struct drm_gem_object **bos); |
| /* perform complete atomic check of given atomic state */ |
| int (*atomic_check)(struct msm_kms *kms, |
| struct drm_atomic_state *state); |
| /* misc: */ |
| long (*round_pixclk)(struct msm_kms *kms, unsigned long rate, |
| struct drm_encoder *encoder); |
| int (*set_split_display)(struct msm_kms *kms, |
| struct drm_encoder *encoder, |
| struct drm_encoder *slave_encoder, |
| bool is_cmd_mode); |
| void (*postopen)(struct msm_kms *kms, struct drm_file *file); |
| void (*preclose)(struct msm_kms *kms, struct drm_file *file); |
| void (*postclose)(struct msm_kms *kms, struct drm_file *file); |
| void (*lastclose)(struct msm_kms *kms); |
| int (*register_events)(struct msm_kms *kms, |
| struct drm_mode_object *obj, u32 event, bool en); |
| /* pm suspend/resume hooks */ |
| int (*pm_suspend)(struct device *dev); |
| int (*pm_resume)(struct device *dev); |
| /* cleanup: */ |
| void (*destroy)(struct msm_kms *kms); |
| /* get address space */ |
| struct msm_gem_address_space *(*get_address_space)( |
| struct msm_kms *kms, |
| unsigned int domain); |
| }; |
| |
| struct msm_kms { |
| const struct msm_kms_funcs *funcs; |
| |
| /* irq number to be passed on to drm_irq_install */ |
| int irq; |
| }; |
| |
| static inline void msm_kms_init(struct msm_kms *kms, |
| const struct msm_kms_funcs *funcs) |
| { |
| kms->funcs = funcs; |
| } |
| |
| #ifdef CONFIG_DRM_MSM_MDP4 |
| struct msm_kms *mdp4_kms_init(struct drm_device *dev); |
| #else |
| static inline |
| struct msm_kms *mdp4_kms_init(struct drm_device *dev) { return NULL; }; |
| #endif |
| |
| #ifdef CONFIG_DRM_MSM_MDP5 |
| int msm_mdss_init(struct drm_device *dev); |
| void msm_mdss_destroy(struct drm_device *dev); |
| struct msm_kms *mdp5_kms_init(struct drm_device *dev); |
| #else |
| static inline int msm_mdss_init(struct drm_device *dev) |
| { |
| return 0; |
| } |
| static inline void msm_mdss_destroy(struct drm_device *dev) |
| { |
| } |
| static inline struct msm_kms *mdp5_kms_init(struct drm_device *dev) |
| { |
| return NULL; |
| } |
| #endif |
| struct msm_kms *sde_kms_init(struct drm_device *dev); |
| |
| /** |
| * Mode Set Utility Functions |
| */ |
| static inline bool msm_is_mode_seamless(const struct drm_display_mode *mode) |
| { |
| return (mode->flags & DRM_MODE_FLAG_SEAMLESS); |
| } |
| |
| static inline bool msm_is_mode_seamless_dms(const struct drm_display_mode *mode) |
| { |
| return mode ? (mode->private_flags & MSM_MODE_FLAG_SEAMLESS_DMS) |
| : false; |
| } |
| |
| static inline bool msm_is_mode_dynamic_fps(const struct drm_display_mode *mode) |
| { |
| return ((mode->flags & DRM_MODE_FLAG_SEAMLESS) && |
| (mode->private_flags & MSM_MODE_FLAG_SEAMLESS_DYNAMIC_FPS)); |
| } |
| |
| static inline bool msm_needs_vblank_pre_modeset( |
| const struct drm_display_mode *mode) |
| { |
| return (mode->private_flags & MSM_MODE_FLAG_VBLANK_PRE_MODESET); |
| } |
| |
| #endif /* __MSM_KMS_H__ */ |