1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Copyright 2019 NXP.
4 */
5
6 #ifndef __DCSS_PRV_H__
7 #define __DCSS_PRV_H__
8
9 #include <drm/drm_fourcc.h>
10 #include <drm/drm_plane.h>
11 #include <linux/io.h>
12 #include <linux/pm.h>
13 #include <video/videomode.h>
14
15 #define SET 0x04
16 #define CLR 0x08
17 #define TGL 0x0C
18
19 #define dcss_writel(v, c) writel((v), (c))
20 #define dcss_readl(c) readl(c)
21 #define dcss_set(v, c) writel((v), (c) + SET)
22 #define dcss_clr(v, c) writel((v), (c) + CLR)
23 #define dcss_toggle(v, c) writel((v), (c) + TGL)
24
dcss_update(u32 v,u32 m,void __iomem * c)25 static inline void dcss_update(u32 v, u32 m, void __iomem *c)
26 {
27 writel((readl(c) & ~(m)) | (v), (c));
28 }
29
30 #define DCSS_DBG_REG(reg) {.name = #reg, .ofs = reg}
31
32 enum {
33 DCSS_IMX8MQ = 0,
34 };
35
36 struct dcss_type_data {
37 const char *name;
38 u32 blkctl_ofs;
39 u32 ctxld_ofs;
40 u32 rdsrc_ofs;
41 u32 wrscl_ofs;
42 u32 dtg_ofs;
43 u32 scaler_ofs;
44 u32 ss_ofs;
45 u32 dpr_ofs;
46 u32 dtrc_ofs;
47 u32 dec400d_ofs;
48 u32 hdr10_ofs;
49 };
50
51 struct dcss_debug_reg {
52 char *name;
53 u32 ofs;
54 };
55
56 enum dcss_ctxld_ctx_type {
57 CTX_DB,
58 CTX_SB_HP, /* high-priority */
59 CTX_SB_LP, /* low-priority */
60 };
61
62 struct dcss_dev {
63 struct device *dev;
64 const struct dcss_type_data *devtype;
65 struct device_node *of_port;
66
67 u32 start_addr;
68
69 struct dcss_blkctl *blkctl;
70 struct dcss_ctxld *ctxld;
71 struct dcss_dpr *dpr;
72 struct dcss_dtg *dtg;
73 struct dcss_ss *ss;
74 struct dcss_hdr10 *hdr10;
75 struct dcss_scaler *scaler;
76 struct dcss_dtrc *dtrc;
77 struct dcss_dec400d *dec400d;
78 struct dcss_wrscl *wrscl;
79 struct dcss_rdsrc *rdsrc;
80
81 struct clk *apb_clk;
82 struct clk *axi_clk;
83 struct clk *pix_clk;
84 struct clk *rtrm_clk;
85 struct clk *dtrc_clk;
86 struct clk *pll_src_clk;
87 struct clk *pll_phy_ref_clk;
88
89 bool hdmi_output;
90
91 void (*disable_callback)(void *data);
92 struct completion disable_completion;
93 };
94
95 struct dcss_dev *dcss_drv_dev_to_dcss(struct device *dev);
96 struct drm_device *dcss_drv_dev_to_drm(struct device *dev);
97 struct dcss_dev *dcss_dev_create(struct device *dev, bool hdmi_output);
98 void dcss_dev_destroy(struct dcss_dev *dcss);
99 void dcss_enable_dtg_and_ss(struct dcss_dev *dcss);
100 void dcss_disable_dtg_and_ss(struct dcss_dev *dcss);
101
102 extern const struct dev_pm_ops dcss_dev_pm_ops;
103
104 /* BLKCTL */
105 int dcss_blkctl_init(struct dcss_dev *dcss, unsigned long blkctl_base);
106 void dcss_blkctl_cfg(struct dcss_blkctl *blkctl);
107 void dcss_blkctl_exit(struct dcss_blkctl *blkctl);
108
109 /* CTXLD */
110 int dcss_ctxld_init(struct dcss_dev *dcss, unsigned long ctxld_base);
111 void dcss_ctxld_exit(struct dcss_ctxld *ctxld);
112 void dcss_ctxld_write(struct dcss_ctxld *ctxld, u32 ctx_id,
113 u32 val, u32 reg_idx);
114 int dcss_ctxld_resume(struct dcss_ctxld *dcss_ctxld);
115 int dcss_ctxld_suspend(struct dcss_ctxld *dcss_ctxld);
116 void dcss_ctxld_write_irqsafe(struct dcss_ctxld *ctlxd, u32 ctx_id, u32 val,
117 u32 reg_ofs);
118 void dcss_ctxld_kick(struct dcss_ctxld *ctxld);
119 bool dcss_ctxld_is_flushed(struct dcss_ctxld *ctxld);
120 int dcss_ctxld_enable(struct dcss_ctxld *ctxld);
121 void dcss_ctxld_register_completion(struct dcss_ctxld *ctxld,
122 struct completion *dis_completion);
123 void dcss_ctxld_assert_locked(struct dcss_ctxld *ctxld);
124
125 /* DPR */
126 int dcss_dpr_init(struct dcss_dev *dcss, unsigned long dpr_base);
127 void dcss_dpr_exit(struct dcss_dpr *dpr);
128 void dcss_dpr_write_sysctrl(struct dcss_dpr *dpr);
129 void dcss_dpr_set_res(struct dcss_dpr *dpr, int ch_num, u32 xres, u32 yres);
130 void dcss_dpr_addr_set(struct dcss_dpr *dpr, int ch_num, u32 luma_base_addr,
131 u32 chroma_base_addr, u16 pitch);
132 void dcss_dpr_enable(struct dcss_dpr *dpr, int ch_num, bool en);
133 void dcss_dpr_format_set(struct dcss_dpr *dpr, int ch_num,
134 const struct drm_format_info *format, u64 modifier);
135 void dcss_dpr_set_rotation(struct dcss_dpr *dpr, int ch_num, u32 rotation);
136
137 /* DTG */
138 int dcss_dtg_init(struct dcss_dev *dcss, unsigned long dtg_base);
139 void dcss_dtg_exit(struct dcss_dtg *dtg);
140 bool dcss_dtg_vblank_irq_valid(struct dcss_dtg *dtg);
141 void dcss_dtg_vblank_irq_enable(struct dcss_dtg *dtg, bool en);
142 void dcss_dtg_vblank_irq_clear(struct dcss_dtg *dtg);
143 void dcss_dtg_sync_set(struct dcss_dtg *dtg, struct videomode *vm);
144 void dcss_dtg_css_set(struct dcss_dtg *dtg);
145 void dcss_dtg_enable(struct dcss_dtg *dtg);
146 void dcss_dtg_shutoff(struct dcss_dtg *dtg);
147 bool dcss_dtg_is_enabled(struct dcss_dtg *dtg);
148 void dcss_dtg_ctxld_kick_irq_enable(struct dcss_dtg *dtg, bool en);
149 bool dcss_dtg_global_alpha_changed(struct dcss_dtg *dtg, int ch_num, int alpha);
150 void dcss_dtg_plane_alpha_set(struct dcss_dtg *dtg, int ch_num,
151 const struct drm_format_info *format, int alpha);
152 void dcss_dtg_plane_pos_set(struct dcss_dtg *dtg, int ch_num,
153 int px, int py, int pw, int ph);
154 void dcss_dtg_ch_enable(struct dcss_dtg *dtg, int ch_num, bool en);
155
156 /* SUBSAM */
157 int dcss_ss_init(struct dcss_dev *dcss, unsigned long subsam_base);
158 void dcss_ss_exit(struct dcss_ss *ss);
159 void dcss_ss_enable(struct dcss_ss *ss);
160 void dcss_ss_shutoff(struct dcss_ss *ss);
161 void dcss_ss_subsam_set(struct dcss_ss *ss);
162 void dcss_ss_sync_set(struct dcss_ss *ss, struct videomode *vm,
163 bool phsync, bool pvsync);
164
165 /* SCALER */
166 int dcss_scaler_init(struct dcss_dev *dcss, unsigned long scaler_base);
167 void dcss_scaler_exit(struct dcss_scaler *scl);
168 void dcss_scaler_set_filter(struct dcss_scaler *scl, int ch_num,
169 enum drm_scaling_filter scaling_filter);
170 void dcss_scaler_setup(struct dcss_scaler *scl, int ch_num,
171 const struct drm_format_info *format,
172 int src_xres, int src_yres, int dst_xres, int dst_yres,
173 u32 vrefresh_hz);
174 void dcss_scaler_ch_enable(struct dcss_scaler *scl, int ch_num, bool en);
175 int dcss_scaler_get_min_max_ratios(struct dcss_scaler *scl, int ch_num,
176 int *min, int *max);
177 void dcss_scaler_write_sclctrl(struct dcss_scaler *scl);
178
179 #endif /* __DCSS_PRV_H__ */
180