1 /* 2 * Copyright (C) 2013 Red Hat 3 * Author: Rob Clark <robdclark@gmail.com> 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 as published by 7 * the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along with 15 * this program. If not, see <http://www.gnu.org/licenses/>. 16 */ 17 18 #ifndef __MSM_KMS_H__ 19 #define __MSM_KMS_H__ 20 21 #include <linux/clk.h> 22 #include <linux/regulator/consumer.h> 23 24 #include "msm_drv.h" 25 26 #define MAX_PLANE 4 27 28 /* As there are different display controller blocks depending on the 29 * snapdragon version, the kms support is split out and the appropriate 30 * implementation is loaded at runtime. The kms module is responsible 31 * for constructing the appropriate planes/crtcs/encoders/connectors. 32 */ 33 struct msm_kms_funcs { 34 /* hw initialization: */ 35 int (*hw_init)(struct msm_kms *kms); 36 /* irq handling: */ 37 void (*irq_preinstall)(struct msm_kms *kms); 38 int (*irq_postinstall)(struct msm_kms *kms); 39 void (*irq_uninstall)(struct msm_kms *kms); 40 irqreturn_t (*irq)(struct msm_kms *kms); 41 int (*enable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc); 42 void (*disable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc); 43 /* modeset, bracketing atomic_commit(): */ 44 void (*prepare_commit)(struct msm_kms *kms, struct drm_atomic_state *state); 45 void (*complete_commit)(struct msm_kms *kms, struct drm_atomic_state *state); 46 /* functions to wait for atomic commit completed on each CRTC */ 47 void (*wait_for_crtc_commit_done)(struct msm_kms *kms, 48 struct drm_crtc *crtc); 49 /* misc: */ 50 const struct msm_format *(*get_format)(struct msm_kms *kms, uint32_t format); 51 long (*round_pixclk)(struct msm_kms *kms, unsigned long rate, 52 struct drm_encoder *encoder); 53 int (*set_split_display)(struct msm_kms *kms, 54 struct drm_encoder *encoder, 55 struct drm_encoder *slave_encoder, 56 bool is_cmd_mode); 57 /* cleanup: */ 58 void (*preclose)(struct msm_kms *kms, struct drm_file *file); 59 void (*destroy)(struct msm_kms *kms); 60 }; 61 62 struct msm_kms { 63 const struct msm_kms_funcs *funcs; 64 65 /* irq handling: */ 66 bool in_irq; 67 struct list_head irq_list; /* list of mdp4_irq */ 68 uint32_t vblank_mask; /* irq bits set for userspace vblank */ 69 }; 70 71 static inline void msm_kms_init(struct msm_kms *kms, 72 const struct msm_kms_funcs *funcs) 73 { 74 kms->funcs = funcs; 75 } 76 77 struct msm_kms *mdp4_kms_init(struct drm_device *dev); 78 struct msm_kms *mdp5_kms_init(struct drm_device *dev); 79 80 #endif /* __MSM_KMS_H__ */ 81