/* * Copyright (C) 2013 Red Hat * Author: Rob Clark * * 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 . */ #ifndef __MDP4_KMS_H__ #define __MDP4_KMS_H__ #include "msm_drv.h" #include "mdp/mdp_kms.h" #include "mdp4.xml.h" /* For transiently registering for different MDP4 irqs that various parts * of the KMS code need during setup/configuration. We these are not * necessarily the same as what drm_vblank_get/put() are requesting, and * the hysteresis in drm_vblank_put() is not necessarily desirable for * internal housekeeping related irq usage. */ struct mdp4_irq { struct list_head node; uint32_t irqmask; bool registered; void (*irq)(struct mdp4_irq *irq, uint32_t irqstatus); }; struct mdp4_kms { struct msm_kms base; struct drm_device *dev; int rev; /* mapper-id used to request GEM buffer mapped for scanout: */ int id; void __iomem *mmio; struct regulator *dsi_pll_vdda; struct regulator *dsi_pll_vddio; struct regulator *vdd; struct clk *clk; struct clk *pclk; struct clk *lut_clk; /* irq handling: */ bool in_irq; struct list_head irq_list; /* list of mdp4_irq */ uint32_t vblank_mask; /* irq bits set for userspace vblank */ struct mdp4_irq error_handler; }; #define to_mdp4_kms(x) container_of(x, struct mdp4_kms, base) /* platform config data (ie. from DT, or pdata) */ struct mdp4_platform_config { struct iommu_domain *iommu; uint32_t max_clk; }; static inline void mdp4_write(struct mdp4_kms *mdp4_kms, u32 reg, u32 data) { msm_writel(data, mdp4_kms->mmio + reg); } static inline u32 mdp4_read(struct mdp4_kms *mdp4_kms, u32 reg) { return msm_readl(mdp4_kms->mmio + reg); } static inline uint32_t pipe2flush(enum mdp4_pipe pipe) { switch (pipe) { case VG1: return MDP4_OVERLAY_FLUSH_VG1; case VG2: return MDP4_OVERLAY_FLUSH_VG2; case RGB1: return MDP4_OVERLAY_FLUSH_RGB1; case RGB2: return MDP4_OVERLAY_FLUSH_RGB1; default: return 0; } } static inline uint32_t ovlp2flush(int ovlp) { switch (ovlp) { case 0: return MDP4_OVERLAY_FLUSH_OVLP0; case 1: return MDP4_OVERLAY_FLUSH_OVLP1; default: return 0; } } static inline uint32_t dma2irq(enum mdp4_dma dma) { switch (dma) { case DMA_P: return MDP4_IRQ_DMA_P_DONE; case DMA_S: return MDP4_IRQ_DMA_S_DONE; case DMA_E: return MDP4_IRQ_DMA_E_DONE; default: return 0; } } static inline uint32_t dma2err(enum mdp4_dma dma) { switch (dma) { case DMA_P: return MDP4_IRQ_PRIMARY_INTF_UDERRUN; case DMA_S: return 0; // ??? case DMA_E: return MDP4_IRQ_EXTERNAL_INTF_UDERRUN; default: return 0; } } static inline uint32_t mixercfg(int mixer, enum mdp4_pipe pipe, enum mdp_mixer_stage_id stage) { uint32_t mixer_cfg = 0; switch (pipe) { case VG1: mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE0(stage) | COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE0_MIXER1); break; case VG2: mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE1(stage) | COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE1_MIXER1); break; case RGB1: mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE2(stage) | COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE2_MIXER1); break; case RGB2: mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE3(stage) | COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE3_MIXER1); break; case RGB3: mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE4(stage) | COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE4_MIXER1); break; case VG3: mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE5(stage) | COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE5_MIXER1); break; case VG4: mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE6(stage) | COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE6_MIXER1); break; default: WARN_ON("invalid pipe"); break; } return mixer_cfg; } int mdp4_disable(struct mdp4_kms *mdp4_kms); int mdp4_enable(struct mdp4_kms *mdp4_kms); void mdp4_irq_preinstall(struct msm_kms *kms); int mdp4_irq_postinstall(struct msm_kms *kms); void mdp4_irq_uninstall(struct msm_kms *kms); irqreturn_t mdp4_irq(struct msm_kms *kms); void mdp4_irq_wait(struct mdp4_kms *mdp4_kms, uint32_t irqmask); void mdp4_irq_register(struct mdp4_kms *mdp4_kms, struct mdp4_irq *irq); void mdp4_irq_unregister(struct mdp4_kms *mdp4_kms, struct mdp4_irq *irq); int mdp4_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc); void mdp4_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc); static inline uint32_t mdp4_get_formats(enum mdp4_pipe pipe_id, uint32_t *pixel_formats, uint32_t max_formats) { /* TODO when we have YUV, we need to filter supported formats * based on pipe_id.. */ return mdp_get_formats(pixel_formats, max_formats); } void mdp4_plane_install_properties(struct drm_plane *plane, struct drm_mode_object *obj); void mdp4_plane_set_scanout(struct drm_plane *plane, struct drm_framebuffer *fb); int mdp4_plane_mode_set(struct drm_plane *plane, struct drm_crtc *crtc, struct drm_framebuffer *fb, int crtc_x, int crtc_y, unsigned int crtc_w, unsigned int crtc_h, uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h); enum mdp4_pipe mdp4_plane_pipe(struct drm_plane *plane); struct drm_plane *mdp4_plane_init(struct drm_device *dev, enum mdp4_pipe pipe_id, bool private_plane); uint32_t mdp4_crtc_vblank(struct drm_crtc *crtc); void mdp4_crtc_cancel_pending_flip(struct drm_crtc *crtc, struct drm_file *file); void mdp4_crtc_set_config(struct drm_crtc *crtc, uint32_t config); void mdp4_crtc_set_intf(struct drm_crtc *crtc, enum mdp4_intf intf); void mdp4_crtc_attach(struct drm_crtc *crtc, struct drm_plane *plane); void mdp4_crtc_detach(struct drm_crtc *crtc, struct drm_plane *plane); struct drm_crtc *mdp4_crtc_init(struct drm_device *dev, struct drm_plane *plane, int id, int ovlp_id, enum mdp4_dma dma_id); long mdp4_dtv_round_pixclk(struct drm_encoder *encoder, unsigned long rate); struct drm_encoder *mdp4_dtv_encoder_init(struct drm_device *dev); #ifdef CONFIG_MSM_BUS_SCALING static inline int match_dev_name(struct device *dev, void *data) { return !strcmp(dev_name(dev), data); } /* bus scaling data is associated with extra pointless platform devices, * "dtv", etc.. this is a bit of a hack, but we need a way for encoders * to find their pdata to make the bus-scaling stuff work. */ static inline void *mdp4_find_pdata(const char *devname) { struct device *dev; dev = bus_find_device(&platform_bus_type, NULL, (void *)devname, match_dev_name); return dev ? dev->platform_data : NULL; } #endif #endif /* __MDP4_KMS_H__ */