2 * Copyright (C) 2013 Red Hat
3 * Author: Rob Clark <robdclark@gmail.com>
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.
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
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/>.
18 #ifndef __MDP4_KMS_H__
19 #define __MDP4_KMS_H__
21 #include <linux/clk.h>
22 #include <linux/platform_device.h>
23 #include <linux/regulator/consumer.h>
29 /* For transiently registering for different MDP4 irqs that various parts
30 * of the KMS code need during setup/configuration. We these are not
31 * necessarily the same as what drm_vblank_get/put() are requesting, and
32 * the hysteresis in drm_vblank_put() is not necessarily desirable for
33 * internal housekeeping related irq usage.
36 struct list_head node;
39 void (*irq)(struct mdp4_irq *irq, uint32_t irqstatus);
45 struct drm_device *dev;
49 /* mapper-id used to request GEM buffer mapped for scanout: */
54 struct regulator *dsi_pll_vdda;
55 struct regulator *dsi_pll_vddio;
56 struct regulator *vdd;
64 struct list_head irq_list; /* list of mdp4_irq */
65 uint32_t vblank_mask; /* irq bits set for userspace vblank */
66 struct mdp4_irq error_handler;
68 #define to_mdp4_kms(x) container_of(x, struct mdp4_kms, base)
70 /* platform config data (ie. from DT, or pdata) */
71 struct mdp4_platform_config {
72 struct iommu_domain *iommu;
77 struct msm_format base;
78 enum mpd4_bpc bpc_r, bpc_g, bpc_b;
79 enum mpd4_bpc_alpha bpc_a;
81 bool alpha_enable, unpack_tight;
82 uint8_t cpp, unpack_count;
84 #define to_mdp4_format(x) container_of(x, struct mdp4_format, base)
86 static inline void mdp4_write(struct mdp4_kms *mdp4_kms, u32 reg, u32 data)
88 msm_writel(data, mdp4_kms->mmio + reg);
91 static inline u32 mdp4_read(struct mdp4_kms *mdp4_kms, u32 reg)
93 return msm_readl(mdp4_kms->mmio + reg);
96 static inline uint32_t pipe2flush(enum mpd4_pipe pipe)
99 case VG1: return MDP4_OVERLAY_FLUSH_VG1;
100 case VG2: return MDP4_OVERLAY_FLUSH_VG2;
101 case RGB1: return MDP4_OVERLAY_FLUSH_RGB1;
102 case RGB2: return MDP4_OVERLAY_FLUSH_RGB1;
107 static inline uint32_t ovlp2flush(int ovlp)
110 case 0: return MDP4_OVERLAY_FLUSH_OVLP0;
111 case 1: return MDP4_OVERLAY_FLUSH_OVLP1;
116 static inline uint32_t dma2irq(enum mdp4_dma dma)
119 case DMA_P: return MDP4_IRQ_DMA_P_DONE;
120 case DMA_S: return MDP4_IRQ_DMA_S_DONE;
121 case DMA_E: return MDP4_IRQ_DMA_E_DONE;
126 static inline uint32_t dma2err(enum mdp4_dma dma)
129 case DMA_P: return MDP4_IRQ_PRIMARY_INTF_UDERRUN;
130 case DMA_S: return 0; // ???
131 case DMA_E: return MDP4_IRQ_EXTERNAL_INTF_UDERRUN;
136 int mdp4_disable(struct mdp4_kms *mdp4_kms);
137 int mdp4_enable(struct mdp4_kms *mdp4_kms);
139 void mdp4_irq_preinstall(struct msm_kms *kms);
140 int mdp4_irq_postinstall(struct msm_kms *kms);
141 void mdp4_irq_uninstall(struct msm_kms *kms);
142 irqreturn_t mdp4_irq(struct msm_kms *kms);
143 void mdp4_irq_wait(struct mdp4_kms *mdp4_kms, uint32_t irqmask);
144 void mdp4_irq_register(struct mdp4_kms *mdp4_kms, struct mdp4_irq *irq);
145 void mdp4_irq_unregister(struct mdp4_kms *mdp4_kms, struct mdp4_irq *irq);
146 int mdp4_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);
147 void mdp4_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);
149 const struct msm_format *mdp4_get_format(struct msm_kms *kms, uint32_t format);
151 void mdp4_plane_install_properties(struct drm_plane *plane,
152 struct drm_mode_object *obj);
153 void mdp4_plane_set_scanout(struct drm_plane *plane,
154 struct drm_framebuffer *fb);
155 int mdp4_plane_mode_set(struct drm_plane *plane,
156 struct drm_crtc *crtc, struct drm_framebuffer *fb,
157 int crtc_x, int crtc_y,
158 unsigned int crtc_w, unsigned int crtc_h,
159 uint32_t src_x, uint32_t src_y,
160 uint32_t src_w, uint32_t src_h);
161 enum mpd4_pipe mdp4_plane_pipe(struct drm_plane *plane);
162 struct drm_plane *mdp4_plane_init(struct drm_device *dev,
163 enum mpd4_pipe pipe_id, bool private_plane);
165 uint32_t mdp4_crtc_vblank(struct drm_crtc *crtc);
166 void mdp4_crtc_cancel_pending_flip(struct drm_crtc *crtc);
167 void mdp4_crtc_set_config(struct drm_crtc *crtc, uint32_t config);
168 void mdp4_crtc_set_intf(struct drm_crtc *crtc, enum mdp4_intf intf);
169 struct drm_crtc *mdp4_crtc_init(struct drm_device *dev,
170 struct drm_plane *plane, int id, int ovlp_id,
171 enum mdp4_dma dma_id);
173 long mdp4_dtv_round_pixclk(struct drm_encoder *encoder, unsigned long rate);
174 struct drm_encoder *mdp4_dtv_encoder_init(struct drm_device *dev);
176 #ifdef CONFIG_MSM_BUS_SCALING
177 static inline int match_dev_name(struct device *dev, void *data)
179 return !strcmp(dev_name(dev), data);
181 /* bus scaling data is associated with extra pointless platform devices,
182 * "dtv", etc.. this is a bit of a hack, but we need a way for encoders
183 * to find their pdata to make the bus-scaling stuff work.
185 static inline void *mdp4_find_pdata(const char *devname)
188 dev = bus_find_device(&platform_bus_type, NULL,
189 (void *)devname, match_dev_name);
190 return dev ? dev->platform_data : NULL;
194 #endif /* __MDP4_KMS_H__ */