kmb_drv.h

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