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https://github.com/Telecominfraproject/OpenCellular.git
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3f2eba22c5
This adds EC_CMD_GET_SET_VALUE to the list of host commands. We have a bunch of single-value getter/setter commands, which is wasteful. This is a start towards unifying them into a simpler command. BUG=chromium:285358 BRANCH=ToT,falco TEST=none There's nothing to test just yet. This just adds the command and some basic interfaces. A future commit will make use of it. Change-Id: Iee986b9d273b422bb06f3a0c9b7af50617f03d7f Signed-off-by: Bill Richardson <wfrichar@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/168083 Reviewed-by: Randall Spangler <rspangler@chromium.org>
108 lines
2.3 KiB
C
108 lines
2.3 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Generic get/set value stuff. */
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#include "common.h"
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#include "console.h"
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#include "getset.h"
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#include "host_command.h"
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#include "util.h"
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/* Declare and initialize the values */
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#define GSV_ITEM(n, v) v,
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#include "getset_value_list.h"
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uint32_t gsv[] = {
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GSV_LIST
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};
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#undef GSV_ITEM
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BUILD_ASSERT(ARRAY_SIZE(gsv) == NUM_GSV_PARAMS);
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static enum ec_status get_set_value(struct ec_cmd_get_set_value *ptr)
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{
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unsigned int index = ptr->flags & EC_GSV_PARAM_MASK;
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if (index >= NUM_GSV_PARAMS)
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return EC_RES_INVALID_PARAM;
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/* Handle flags correctly - we may add new ones some day */
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if (ptr->flags & EC_GSV_SET)
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gsv[index] = ptr->value;
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ptr->value = gsv[index];
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return EC_RES_SUCCESS;
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}
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static int host_command_get_set_value(struct host_cmd_handler_args *args)
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{
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const struct ec_cmd_get_set_value *p = args->params;
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struct ec_cmd_get_set_value *r = args->response;
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args->response_size = sizeof(*r);
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if (p != r)
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memcpy(r, p, sizeof(*p));
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return get_set_value(r);
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}
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DECLARE_HOST_COMMAND(EC_CMD_GET_SET_VALUE,
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host_command_get_set_value,
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EC_VER_MASK(0));
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#ifdef CONFIG_CMD_GSV
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#define STRINGIFY0(name) #name
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#define STRINGIFY(name) STRINGIFY0(name)
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#define GSV_ITEM(n, v) STRINGIFY(n),
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#include "getset_value_list.h"
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static const char const *gsv_name[] = {
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GSV_LIST
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};
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#undef GSV_ITEM
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static int console_command_get_set_value(int argc, char **argv)
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{
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unsigned int i;
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struct ec_cmd_get_set_value s = {0, 0};
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char *e;
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int ret;
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if (argc < 2) {
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for (i = 0; i < NUM_GSV_PARAMS; i++)
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ccprintf("%s = 0x%08x\n", gsv_name[i], gsv[i]);
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return EC_SUCCESS;
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}
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for (i = 0; i < NUM_GSV_PARAMS; i++)
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if (!strcasecmp(gsv_name[i], argv[1]))
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break;
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if (i >= NUM_GSV_PARAMS) {
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ccprintf("Can't find param \"%s\"\n", argv[1]);
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return EC_ERROR_UNKNOWN;
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}
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s.flags = i;
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if (argc > 2) {
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s.flags |= EC_GSV_SET;
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s.value = strtoi(argv[2], &e, 0);
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if (*e)
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return EC_ERROR_INVAL;
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}
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ret = get_set_value(&s);
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if (ret == EC_RES_SUCCESS)
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ccprintf("%s = 0x%08x\n", argv[1], s.value);
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return ret;
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}
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DECLARE_CONSOLE_COMMAND(gsv, console_command_get_set_value,
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"[name [value]]",
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"get/set the value of named parameters",
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NULL);
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#endif /* CONFIG_CMD_GSV */
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