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platform/chrome: cros_ec_lightbar - Add lightbar program feature to sysfs

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Add a program feature so we can upload and run programs for lightbar
sequences. We should be able to use this to shift sequences out of the
EC and save space there.

  $ cat <suitable program bin> > /sys/devices/.../cros_ec/program
  $ echo program > /sys/devices/.../cros_ec/sequence

Signed-off-by: Eric Caruso <ejcaruso@chromium.org>
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Benson Leung <bleung@chromium.org>
This commit is contained in:
Eric Caruso
2017-05-16 17:46:48 +02:00
committed by Benson Leung
parent a6df7798d0
commit be3ebebf43
2 changed files with 79 additions and 2 deletions
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12
include/linux/mfd/cros_ec_commands.h
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@@ -1162,6 +1162,13 @@ struct lightbar_params_v1 {
struct rgb_s color[8]; /* 0-3 are Google colors */
} __packed;
/* Lightbar program */
#define EC_LB_PROG_LEN 192
struct lightbar_program {
uint8_t size;
uint8_t data[EC_LB_PROG_LEN];
};
struct ec_params_lightbar {
uint8_t cmd; /* Command (see enum lightbar_command) */
union {
@@ -1188,6 +1195,7 @@ struct ec_params_lightbar {
struct lightbar_params_v0 set_params_v0;
struct lightbar_params_v1 set_params_v1;
struct lightbar_program set_program;
};
} __packed;
@@ -1220,7 +1228,8 @@ struct ec_response_lightbar {
struct {
/* no return params */
} off, on, init, set_brightness, seq, reg, set_rgb,
demo, set_params_v0, set_params_v1;
demo, set_params_v0, set_params_v1,
set_program;
};
} __packed;
@@ -1244,6 +1253,7 @@ enum lightbar_command {
LIGHTBAR_CMD_GET_DEMO = 15,
LIGHTBAR_CMD_GET_PARAMS_V1 = 16,
LIGHTBAR_CMD_SET_PARAMS_V1 = 17,
LIGHTBAR_CMD_SET_PROGRAM = 18,
LIGHTBAR_NUM_CMDS
};