platform/chrome: cros_ec_lightbar - Add lightbar program feature to sysfs
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>
diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h
index 1b19e424..dbea580 100644
--- a/include/linux/mfd/cros_ec_commands.h
+++ b/include/linux/mfd/cros_ec_commands.h
@@ -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
};