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