diff options
| author | Gwendal Grignou <gwendal@chromium.org> | 2026-01-30 00:13:51 -0800 |
|---|---|---|
| committer | Tzung-Bi Shih <tzungbi@kernel.org> | 2026-01-30 08:30:01 +0000 |
| commit | 9600b8bdbfe48bb51865be743450160577d2bae2 (patch) | |
| tree | 0d6df07be8872b002128c314a834e5c4946aaa4c /include/linux/platform_data | |
| parent | 2d8251d98ce0be96d79aec708aa70cab2b4f6f17 (diff) | |
platform/chrome: lightbar: Add support for large sequence
Current sequences are limited to 192 bytes. Increase support to whatever
the EC support. If the sequence is too long, the EC will return an
OVERFLOW error.
Test: Check sending a large sequence is received by the EC.
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Link: https://lore.kernel.org/r/20260130081351.487517-2-gwendal@google.com
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Diffstat (limited to 'include/linux/platform_data')
| -rw-r--r-- | include/linux/platform_data/cros_ec_commands.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/platform_data/cros_ec_commands.h b/include/linux/platform_data/cros_ec_commands.h index 9cbf024f56c3..144243143034 100644 --- a/include/linux/platform_data/cros_ec_commands.h +++ b/include/linux/platform_data/cros_ec_commands.h @@ -2020,6 +2020,17 @@ struct lightbar_program { uint8_t data[EC_LB_PROG_LEN]; } __ec_todo_unpacked; +/* + * Lightbar program for large sequences. Sequences are sent in pieces, with + * increasing offset. The sequences are still limited by the amount reserved in + * EC RAM. + */ +struct lightbar_program_ex { + uint16_t offset; + uint8_t size; + uint8_t data[0]; +} __ec_todo_unpacked; + struct ec_params_lightbar { uint8_t cmd; /* Command (see enum lightbar_command) */ union { @@ -2066,6 +2077,7 @@ struct ec_params_lightbar { struct lightbar_params_v2_colors set_v2par_colors; struct lightbar_program set_program; + struct lightbar_program_ex set_program_ex; }; } __ec_todo_packed; @@ -2154,6 +2166,7 @@ enum lightbar_command { LIGHTBAR_CMD_GET_PARAMS_V2_COLORS = 32, LIGHTBAR_CMD_SET_PARAMS_V2_COLORS = 33, LIGHTBAR_CMD_GET_PARAMS_V3 = 34, + LIGHTBAR_CMD_SET_PROGRAM_EX = 35, LIGHTBAR_NUM_CMDS }; |