ec_commands: Add host commands for regulator control.

BUG=b:149274957
TEST=build
BRANCH=none

Change-Id: I9c7b5dec7e2f66ab64750b48acd914a1c86dfd3d
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2247431
Reviewed-by: Jett Rink <jettrink@chromium.org>
Commit-Queue: Jett Rink <jettrink@chromium.org>

1 files changed, 99 insertions, 0 deletions

diff --git a/common/regulator.c b/common/regulator.c
new file mode 100644
index 0000000000..c3f5d0b99d
--- /dev/null
+++ b/common/regulator.c
@@ -0,0 +1,99 @@
+/* Copyright 2020 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* Regulator control module for Chrome EC */
+
+#include "common.h"
+#include "console.h"
+#include "ec_commands.h"
+#include "host_command.h"
+#include "regulator.h"
+
+static enum ec_status
+hc_regulator_get_info(struct host_cmd_handler_args *args)
+{
+	const struct ec_params_regulator_get_info *p = args->params;
+	struct ec_response_regulator_get_info *r = args->response;
+	int rv;
+
+	rv = board_regulator_get_info(p->index, r->name, &r->num_voltages,
+				      r->voltages_mv);
+
+	if (rv)
+		return EC_RES_ERROR;
+
+	args->response_size = sizeof(*r);
+	return EC_RES_SUCCESS;
+}
+DECLARE_HOST_COMMAND(EC_CMD_REGULATOR_GET_INFO, hc_regulator_get_info,
+		     EC_VER_MASK(0));
+
+static enum ec_status
+hc_regulator_enable(struct host_cmd_handler_args *args)
+{
+	const struct ec_params_regulator_enable *p = args->params;
+	int rv;
+
+	rv = board_regulator_enable(p->index, p->enable);
+
+	if (rv)
+		return EC_RES_ERROR;
+
+	return EC_RES_SUCCESS;
+}
+DECLARE_HOST_COMMAND(EC_CMD_REGULATOR_ENABLE, hc_regulator_enable,
+		     EC_VER_MASK(0));
+
+static enum ec_status
+hc_regulator_is_enabled(struct host_cmd_handler_args *args)
+{
+	const struct ec_params_regulator_is_enabled *p = args->params;
+	struct ec_response_regulator_is_enabled *r = args->response;
+	int rv;
+
+	rv = board_regulator_is_enabled(p->index, &r->enabled);
+
+	if (rv)
+		return EC_RES_ERROR;
+
+	args->response_size = sizeof(*r);
+	return EC_RES_SUCCESS;
+}
+DECLARE_HOST_COMMAND(EC_CMD_REGULATOR_IS_ENABLED, hc_regulator_is_enabled,
+		     EC_VER_MASK(0));
+
+static enum ec_status
+hc_regulator_get_voltage(struct host_cmd_handler_args *args)
+{
+	const struct ec_params_regulator_get_voltage *p = args->params;
+	struct ec_response_regulator_get_voltage *r = args->response;
+	int rv;
+
+	rv = board_regulator_get_voltage(p->index, &r->voltage_mv);
+
+	if (rv)
+		return EC_RES_ERROR;
+
+	args->response_size = sizeof(*r);
+	return EC_RES_SUCCESS;
+}
+DECLARE_HOST_COMMAND(EC_CMD_REGULATOR_GET_VOLTAGE, hc_regulator_get_voltage,
+		     EC_VER_MASK(0));
+
+static enum ec_status
+hc_regulator_set_voltage(struct host_cmd_handler_args *args)
+{
+	const struct ec_params_regulator_set_voltage *p = args->params;
+	int rv;
+
+	rv = board_regulator_set_voltage(p->index, p->min_mv, p->max_mv);
+
+	if (rv)
+		return EC_RES_ERROR;
+
+	return EC_RES_SUCCESS;
+}
+DECLARE_HOST_COMMAND(EC_CMD_REGULATOR_SET_VOLTAGE, hc_regulator_set_voltage,
+		     EC_VER_MASK(0));