tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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#define KMB_FB_MAX_WIDTH 1920
24#define KMB_FB_MAX_HEIGHT 1080
25#define KMB_FB_MIN_WIDTH 1
26#define KMB_FB_MIN_HEIGHT 1
27
28#define KMB_LCD_DEFAULT_CLK 200000000
29#define KMB_SYS_CLK_MHZ 500
30
31#define ICAM_MMIO 0x3b100000
32#define ICAM_LCD_OFFSET 0x1080
33#define ICAM_MMIO_SIZE 0x2000
34
35struct kmb_dsi;
36
37struct kmb_clock {
38 struct clk *clk_lcd;
39 struct clk *clk_pll0;
40};
41
42struct kmb_drm_private {
43 struct drm_device drm;
44 struct kmb_dsi *kmb_dsi;
45 void __iomem *lcd_mmio;
46 struct kmb_clock kmb_clk;
47 struct drm_crtc crtc;
48 struct kmb_plane *plane;
49 struct drm_atomic_state *state;
50 spinlock_t irq_lock;
51 int irq_lcd;
52 int sys_clk_mhz;
53 struct layer_status plane_status[KMB_MAX_PLANES];
54 int kmb_under_flow;
55 int kmb_flush_done;
56 int layer_no;
57};
58
59static inline struct kmb_drm_private *to_kmb(const struct drm_device *dev)
60{
61 return container_of(dev, struct kmb_drm_private, drm);
62}
63
64static inline struct kmb_drm_private *crtc_to_kmb_priv(const struct drm_crtc *x)
65{
66 return container_of(x, struct kmb_drm_private, crtc);
67}
68
69static inline void kmb_write_lcd(struct kmb_drm_private *dev_p,
70 unsigned int reg, u32 value)
71{
72 writel(value, (dev_p->lcd_mmio + reg));
73}
74
75static inline u32 kmb_read_lcd(struct kmb_drm_private *dev_p, unsigned int reg)
76{
77 return readl(dev_p->lcd_mmio + reg);
78}
79
80static inline void kmb_set_bitmask_lcd(struct kmb_drm_private *dev_p,
81 unsigned int reg, u32 mask)
82{
83 u32 reg_val = kmb_read_lcd(dev_p, reg);
84
85 kmb_write_lcd(dev_p, reg, (reg_val | mask));
86}
87
88static inline void kmb_clr_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
96int kmb_setup_crtc(struct drm_device *dev);
97void kmb_set_scanout(struct kmb_drm_private *lcd);
98#endif /* __KMB_DRV_H__ */