diff options
Diffstat (limited to 'drivers/gpu/drm/solomon/ssd130x.h')
| -rw-r--r-- | drivers/gpu/drm/solomon/ssd130x.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/drivers/gpu/drm/solomon/ssd130x.h b/drivers/gpu/drm/solomon/ssd130x.h new file mode 100644 index 000000000..03038c1b6 --- /dev/null +++ b/drivers/gpu/drm/solomon/ssd130x.h @@ -0,0 +1,97 @@ +/* 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__ */ |