diff options
| author | Rob Clark <[email protected]> | 2017-09-13 18:12:21 -0400 |
|---|---|---|
| committer | Anatolij Gustschin <[email protected]> | 2017-09-29 17:53:21 +0200 |
| commit | a085aa1f2737baf60d322296f02c066ee3c6a53e (patch) | |
| tree | 8bc7a47f5cc1ac717f0dc230e13ec4c7ddc49ad7 /include | |
| parent | 889808da9b78d193e5a117a6bf6bc9366d6a3f30 (diff) | |
dm: video: Add basic ANSI escape sequence support
Really just the subset that is needed by efi_console. Perhaps more will
be added later, for example color support would be useful to implement
efi_cout_set_attribute().
Signed-off-by: Rob Clark <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Diffstat (limited to 'include')
| -rw-r--r-- | include/video.h | 7 | ||||
| -rw-r--r-- | include/video_console.h | 11 |
2 files changed, 18 insertions, 0 deletions
diff --git a/include/video.h b/include/video.h index 5b4e78b1825..61ff6531215 100644 --- a/include/video.h +++ b/include/video.h @@ -115,6 +115,13 @@ struct video_ops { int video_reserve(ulong *addrp); /** + * video_clear() - Clear a device's frame buffer to background color. + * + * @dev: Device to clear + */ +void video_clear(struct udevice *dev); + +/** * video_sync() - Sync a device's frame buffer with its hardware * * Some frame buffers are cached or have a secondary frame buffer. This diff --git a/include/video_console.h b/include/video_console.h index 26047934da8..9dce234bd92 100644 --- a/include/video_console.h +++ b/include/video_console.h @@ -29,6 +29,9 @@ * @xsize_frac: Width of the display in fractional units * @xstart_frac: Left margin for the text console in fractional units * @last_ch: Last character written to the text console on this line + * @escape: TRUE if currently accumulating an ANSI escape sequence + * @escape_len: Length of accumulated escape sequence so far + * @escape_buf: Buffer to accumulate escape sequence */ struct vidconsole_priv { struct stdio_dev sdev; @@ -42,6 +45,14 @@ struct vidconsole_priv { int xsize_frac; int xstart_frac; int last_ch; + /* + * ANSI escape sequences are accumulated character by character, + * starting after the ESC char (0x1b) until the entire sequence + * is consumed at which point it is acted upon. + */ + int escape; + int escape_len; + char escape_buf[32]; }; /** |