diff options
Diffstat (limited to 'include/display.h')
-rw-r--r-- | include/display.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/include/display.h b/include/display.h new file mode 100644 index 00000000000..c180e76e534 --- /dev/null +++ b/include/display.h @@ -0,0 +1,69 @@ +/* + * Copyright 2014 Google Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _DISPLAY_H +#define _DISPLAY_H + +struct udevice; +struct display_timing; + +/** + * Display uclass platform data for each device + * + * @source_id: ID for the source of the display data, typically a video + * controller + * @src_dev: Source device providing the video + */ +struct display_plat { + int source_id; + struct udevice *src_dev; +}; + +/** + * display_read_timing() - Read timing information from EDID + * + * @dev: Device to read from + * @return 0 if OK, -ve on error + */ +int display_read_timing(struct udevice *dev, struct display_timing *timing); + +/** + * display_port_enable() - Enable a display port device + * + * @dev: Device to enable + * @panel_bpp: Number of bits per pixel for panel + * @timing: Display timings + * @return 0 if OK, -ve on error + */ +int display_enable(struct udevice *dev, int panel_bpp, + const struct display_timing *timing); + +struct dm_display_ops { + /** + * read_edid() - Read information from EDID + * + * @dev: Device to read from + * @buf: Buffer to read into (should be EDID_SIZE bytes) + * @buf_size: Buffer size (should be EDID_SIZE) + * @return number of bytes read, <=0 for error + */ + int (*read_edid)(struct udevice *dev, u8 *buf, int buf_size); + + /** + * enable() - Enable the display port device + * + * @dev: Device to enable + * @panel_bpp: Number of bits per pixel for panel + * @timing: Display timings + * @return 0 if OK, -ve on error + */ + int (*enable)(struct udevice *dev, int panel_bpp, + const struct display_timing *timing); +}; + +#define display_get_ops(dev) ((struct dm_display_ops *)(dev)->driver->ops) + +#endif |