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41364f0fbe
Add a common library for obtaining access to the Chrome OS EC. This is used by boards which need to talk to the EC. Reviewed-by: Vadim Bendebury <vbendeb@google.com> Tested-by: Vadim Bendebury <vbendeb@google.com> Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
45 lines
1.0 KiB
C
45 lines
1.0 KiB
C
/*
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* 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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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*/
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#include <common.h>
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#include <cros_ec.h>
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DECLARE_GLOBAL_DATA_PTR;
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struct local_info {
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struct cros_ec_dev *cros_ec_dev; /* Pointer to cros_ec device */
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int cros_ec_err; /* Error for cros_ec, 0 if ok */
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};
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static struct local_info local;
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struct cros_ec_dev *board_get_cros_ec_dev(void)
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{
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return local.cros_ec_dev;
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}
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static int board_init_cros_ec_devices(const void *blob)
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{
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local.cros_ec_err = cros_ec_init(blob, &local.cros_ec_dev);
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if (local.cros_ec_err)
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return -1; /* Will report in board_late_init() */
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return 0;
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}
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int cros_ec_board_init(void)
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{
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return board_init_cros_ec_devices(gd->fdt_blob);
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}
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int cros_ec_get_error(void)
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{
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return local.cros_ec_err;
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}
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