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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Header file for:
* DRM driver for Solomon SSD130x OLED displays
*
* Copyright 2022 Red Hat Inc.
* Author: Javier Martinez Canillas <javierm@redhat.com>
*
* Based on drivers/video/fbdev/ssd1307fb.c
* Copyright 2012 Free Electrons
*/
#ifndef __SSD1307X_H__
#define __SSD1307X_H__
#include <drm/drm_connector.h>
#include <drm/drm_crtc.h>
#include <drm/drm_drv.h>
#include <drm/drm_encoder.h>
#include <drm/drm_plane_helper.h>
#include <linux/regmap.h>
#define SSD130X_DATA 0x40
#define SSD130X_COMMAND 0x80
enum ssd130x_variants {
SH1106_ID,
SSD1305_ID,
SSD1306_ID,
SSD1307_ID,
SSD1309_ID,
NR_SSD130X_VARIANTS
};
struct ssd130x_deviceinfo {
u32 default_vcomh;
u32 default_dclk_div;
u32 default_dclk_frq;
int need_pwm;
int need_chargepump;
bool page_mode_only;
};
struct ssd130x_device {
struct drm_device drm;
struct device *dev;
struct drm_display_mode mode;
struct drm_plane primary_plane;
struct drm_crtc crtc;
struct drm_encoder encoder;
struct drm_connector connector;
struct i2c_client *client;
struct regmap *regmap;
const struct ssd130x_deviceinfo *device_info;
unsigned page_address_mode : 1;
unsigned area_color_enable : 1;
unsigned com_invdir : 1;
unsigned com_lrremap : 1;
unsigned com_seq : 1;
unsigned lookup_table_set : 1;
unsigned low_power : 1;
unsigned seg_remap : 1;
u32 com_offset;
u32 contrast;
u32 dclk_div;
u32 dclk_frq;
u32 height;
u8 lookup_table[4];
u32 page_offset;
u32 col_offset;
u32 prechargep1;
u32 prechargep2;
struct backlight_device *bl_dev;
struct pwm_device *pwm;
struct gpio_desc *reset;
struct regulator *vcc_reg;
u32 vcomh;
u32 width;
/* Cached address ranges */
u8 col_start;
u8 col_end;
u8 page_start;
u8 page_end;
};
extern const struct ssd130x_deviceinfo ssd130x_variants[];
struct ssd130x_device *ssd130x_probe(struct device *dev, struct regmap *regmap);
void ssd130x_remove(struct ssd130x_device *ssd130x);
void ssd130x_shutdown(struct ssd130x_device *ssd130x);
#endif /* __SSD1307X_H__ */
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