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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Header file for:4 * DRM driver for Solomon SSD130x OLED displays5 *6 * Copyright 2022 Red Hat Inc.7 * Author: Javier Martinez Canillas <javierm@redhat.com>8 *9 * Based on drivers/video/fbdev/ssd1307fb.c10 * Copyright 2012 Free Electrons11 */12 13#ifndef __SSD130X_H__14#define __SSD130X_H__15 16#include <drm/drm_connector.h>17#include <drm/drm_crtc.h>18#include <drm/drm_drv.h>19#include <drm/drm_encoder.h>20 21#include <linux/regmap.h>22 23#define SSD13XX_DATA 0x4024#define SSD13XX_COMMAND 0x8025 26enum ssd130x_family_ids {27 SSD130X_FAMILY,28 SSD132X_FAMILY,29 SSD133X_FAMILY30};31 32enum ssd130x_variants {33 /* ssd130x family */34 SH1106_ID,35 SSD1305_ID,36 SSD1306_ID,37 SSD1307_ID,38 SSD1309_ID,39 /* ssd132x family */40 SSD1322_ID,41 SSD1325_ID,42 SSD1327_ID,43 /* ssd133x family */44 SSD1331_ID,45 NR_SSD130X_VARIANTS46};47 48struct ssd130x_deviceinfo {49 u32 default_vcomh;50 u32 default_dclk_div;51 u32 default_dclk_frq;52 u32 default_width;53 u32 default_height;54 bool need_pwm;55 bool need_chargepump;56 bool page_mode_only;57 58 enum ssd130x_family_ids family_id;59};60 61struct ssd130x_device {62 struct drm_device drm;63 struct device *dev;64 struct drm_display_mode mode;65 struct drm_plane primary_plane;66 struct drm_crtc crtc;67 struct drm_encoder encoder;68 struct drm_connector connector;69 struct i2c_client *client;70 71 struct regmap *regmap;72 73 const struct ssd130x_deviceinfo *device_info;74 75 unsigned page_address_mode : 1;76 unsigned area_color_enable : 1;77 unsigned com_invdir : 1;78 unsigned com_lrremap : 1;79 unsigned com_seq : 1;80 unsigned lookup_table_set : 1;81 unsigned low_power : 1;82 unsigned seg_remap : 1;83 u32 com_offset;84 u32 contrast;85 u32 dclk_div;86 u32 dclk_frq;87 u32 height;88 u8 lookup_table[4];89 u32 page_offset;90 u32 col_offset;91 u32 prechargep1;92 u32 prechargep2;93 94 struct backlight_device *bl_dev;95 struct pwm_device *pwm;96 struct gpio_desc *reset;97 struct regulator *vcc_reg;98 u32 vcomh;99 u32 width;100 /* Cached address ranges */101 u8 col_start;102 u8 col_end;103 u8 page_start;104 u8 page_end;105};106 107extern const struct ssd130x_deviceinfo ssd130x_variants[];108 109struct ssd130x_device *ssd130x_probe(struct device *dev, struct regmap *regmap);110void ssd130x_remove(struct ssd130x_device *ssd130x);111void ssd130x_shutdown(struct ssd130x_device *ssd130x);112 113#endif /* __SSD130X_H__ */114