1/* SPDX-License-Identifier: GPL-2.0-only
2 *
3 * Copyright © 2018-2020 Intel Corporation
4 */
5
6#ifndef __KMB_DRV_H__
7#define __KMB_DRV_H__
8
9#include <drm/drm_device.h>
10
11#include "kmb_plane.h"
12#include "kmb_regs.h"
13
14#define KMB_MAX_WIDTH			1920 /*Max width in pixels */
15#define KMB_MAX_HEIGHT			1080 /*Max height in pixels */
16#define KMB_MIN_WIDTH                   1920 /*Max width in pixels */
17#define KMB_MIN_HEIGHT                  1080 /*Max height in pixels */
18
19#define DRIVER_DATE			"20210223"
20#define DRIVER_MAJOR			1
21#define DRIVER_MINOR			1
22
23/* Platform definitions */
24#define KMB_CRTC_MIN_VFP		4
25#define KMB_CRTC_MAX_WIDTH		1920 /* max width in pixels */
26#define KMB_CRTC_MAX_HEIGHT		1080 /* max height in pixels */
27#define KMB_CRTC_MIN_WIDTH		1920
28#define KMB_CRTC_MIN_HEIGHT		1080
29#define KMB_FB_MAX_WIDTH		1920
30#define KMB_FB_MAX_HEIGHT		1080
31#define KMB_FB_MIN_WIDTH		1
32#define KMB_FB_MIN_HEIGHT		1
33#define KMB_MIN_VREFRESH		59    /*vertical refresh in Hz */
34#define KMB_MAX_VREFRESH		60    /*vertical refresh in Hz */
35#define KMB_LCD_DEFAULT_CLK		200000000
36#define KMB_SYS_CLK_MHZ			500
37
38#define ICAM_MMIO		0x3b100000
39#define ICAM_LCD_OFFSET		0x1080
40#define ICAM_MMIO_SIZE		0x2000
41
42struct kmb_dsi;
43
44struct kmb_clock {
45	struct clk *clk_lcd;
46	struct clk *clk_pll0;
47};
48
49struct kmb_drm_private {
50	struct drm_device		drm;
51	struct kmb_dsi			*kmb_dsi;
52	void __iomem			*lcd_mmio;
53	struct kmb_clock		kmb_clk;
54	struct drm_crtc			crtc;
55	struct kmb_plane		*plane;
56	struct drm_atomic_state		*state;
57	spinlock_t			irq_lock;
58	int				irq_lcd;
59	int				sys_clk_mhz;
60	struct disp_cfg			init_disp_cfg[KMB_MAX_PLANES];
61	struct layer_status		plane_status[KMB_MAX_PLANES];
62	int				kmb_under_flow;
63	int				kmb_flush_done;
64	int				layer_no;
65};
66
67static inline struct kmb_drm_private *to_kmb(const struct drm_device *dev)
68{
69	return container_of(dev, struct kmb_drm_private, drm);
70}
71
72static inline struct kmb_drm_private *crtc_to_kmb_priv(const struct drm_crtc *x)
73{
74	return container_of(x, struct kmb_drm_private, crtc);
75}
76
77static inline void kmb_write_lcd(struct kmb_drm_private *dev_p,
78				 unsigned int reg, u32 value)
79{
80	writel(value, (dev_p->lcd_mmio + reg));
81}
82
83static inline u32 kmb_read_lcd(struct kmb_drm_private *dev_p, unsigned int reg)
84{
85	return readl(dev_p->lcd_mmio + reg);
86}
87
88static inline void kmb_set_bitmask_lcd(struct kmb_drm_private *dev_p,
89				       unsigned int reg, u32 mask)
90{
91	u32 reg_val = kmb_read_lcd(dev_p, reg);
92
93	kmb_write_lcd(dev_p, reg, (reg_val | mask));
94}
95
96static inline void kmb_clr_bitmask_lcd(struct kmb_drm_private *dev_p,
97				       unsigned int reg, u32 mask)
98{
99	u32 reg_val = kmb_read_lcd(dev_p, reg);
100
101	kmb_write_lcd(dev_p, reg, (reg_val & (~mask)));
102}
103
104int kmb_setup_crtc(struct drm_device *dev);
105void kmb_set_scanout(struct kmb_drm_private *lcd);
106#endif /* __KMB_DRV_H__ */
107