diff options
Diffstat (limited to 'drivers/gpu/drm/msm/mdp4/mdp4_kms.h')
| -rw-r--r-- | drivers/gpu/drm/msm/mdp4/mdp4_kms.h | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/mdp4/mdp4_kms.h b/drivers/gpu/drm/msm/mdp4/mdp4_kms.h new file mode 100644 index 000000000000..1e83554955f3 --- /dev/null +++ b/drivers/gpu/drm/msm/mdp4/mdp4_kms.h @@ -0,0 +1,194 @@ +/* + * 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 __MDP4_KMS_H__ +#define __MDP4_KMS_H__ + +#include <linux/clk.h> +#include <linux/platform_device.h> +#include <linux/regulator/consumer.h> + +#include "msm_drv.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; +}; + +struct mdp4_format { + struct msm_format base; + enum mpd4_bpc bpc_r, bpc_g, bpc_b; + enum mpd4_bpc_alpha bpc_a; + uint8_t unpack[4]; + bool alpha_enable, unpack_tight; + uint8_t cpp, unpack_count; +}; +#define to_mdp4_format(x) container_of(x, struct mdp4_format, base) + +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 mpd4_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; + } +} + +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); + +const struct msm_format *mdp4_get_format(struct msm_kms *kms, uint32_t format); + +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 mpd4_pipe mdp4_plane_pipe(struct drm_plane *plane); +struct drm_plane *mdp4_plane_init(struct drm_device *dev, + enum mpd4_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); +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); +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__ */ |