| /* 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__ */ |
