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https://github.com/Telecominfraproject/OpenCellular.git
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bb15561db5
Since pretty much always, we've declared console commands to take a "longhelp" argument with detailed explanations of what the command does. But since almost as long, we've never actually used that argument for anything - we just silently throw it away in the macro. There's only one command (usbchargemode) that even thinks it defines that argument. We're never going to use this, let's just get rid of it. BUG=none BRANCH=none CQ-DEPEND=CL:*279060 CQ-DEPEND=CL:*279158 CQ-DEPEND=CL:*279037 TEST=make buildall; tested on Cr50 hardware Everything builds. Since we never used this arg anyway, there had better not be any difference in the result. Change-Id: Id3f71a53d02e3dc625cfcc12aa71ecb50e35eb9f Signed-off-by: Bill Richardson <wfrichar@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/374163 Reviewed-by: Myles Watson <mylesgw@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org>
67 lines
1.4 KiB
C
67 lines
1.4 KiB
C
/* Copyright (c) 2012 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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/* Shared memory module for Chrome EC */
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#include "common.h"
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#include "console.h"
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#include "link_defs.h"
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#include "shared_mem.h"
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#include "system.h"
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#include "util.h"
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static int buf_in_use;
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static int max_used;
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int shared_mem_size(void)
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{
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/*
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* Use all the RAM we can. The shared memory buffer is the last thing
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* allocated from the start of RAM, so we can use everything up to the
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* jump data at the end of RAM.
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*/
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return system_usable_ram_end() - (uintptr_t)__shared_mem_buf;
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}
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int shared_mem_acquire(int size, char **dest_ptr)
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{
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if (size > shared_mem_size() || size <= 0)
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return EC_ERROR_INVAL;
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if (buf_in_use)
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return EC_ERROR_BUSY;
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/*
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* We could guard buf_in_use with a mutex, but since shared memory is
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* currently only used by debug commands, that's overkill.
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*/
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buf_in_use = size;
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*dest_ptr = __shared_mem_buf;
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if (max_used < size)
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max_used = size;
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return EC_SUCCESS;
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}
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void shared_mem_release(void *ptr)
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{
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buf_in_use = 0;
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}
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#ifdef CONFIG_CMD_SHMEM
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static int command_shmem(int argc, char **argv)
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{
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ccprintf("Size:%6d\n", shared_mem_size());
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ccprintf("Used:%6d\n", buf_in_use);
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ccprintf("Max: %6d\n", max_used);
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return EC_SUCCESS;
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}
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DECLARE_CONSOLE_COMMAND(shmem, command_shmem,
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NULL,
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"Print shared memory stats");
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#endif
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