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7f5f7be3e5
And fix returning memory-mapped string length on LPC as well. BUG=chrome-os-partner:11090 TEST=manual from EC, 'hostevent set 0x40000' from host, 'ectool eventget' --> should print 0x40000 Signed-off-by: Randall Spangler <rspangler@chromium.org> Change-Id: I9edbd0a1468b5d4160ce67c471332226e51fa868 Reviewed-on: https://gerrit.chromium.org/gerrit/26719 Reviewed-by: Simon Glass <sjg@chromium.org>
40 lines
1.2 KiB
C
40 lines
1.2 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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#ifndef COMM_HOST_H
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#define COMM_HOST_H
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#include "common.h"
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#include "ec_commands.h"
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/* Perform initializations needed for subsequent requests
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*
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* returns 0 in case of success or error code. */
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int comm_init(void);
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/*
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* Send a command to the EC. Returns the length of output data returned (0 if
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* none), or a negative number if error; errors are -EC_RES_* constants from
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* ec_commands.h.
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*/
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int ec_command(int command, const void *indata, int insize,
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void *outdata, int outsize);
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/*
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* Return the content of the EC information area mapped as "memory".
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* The offsets are defined by the EC_MEMMAP_ constants.
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*/
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uint8_t read_mapped_mem8(uint8_t offset);
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uint16_t read_mapped_mem16(uint8_t offset);
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uint32_t read_mapped_mem32(uint8_t offset);
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/*
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* Read a memory-mapped string at the specified offset and store into buf,
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* which must be at least size EC_MEMMAP_TEXT_MAX. Returns the length of
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* the copied string, not counting the terminating '\0', or <0 if error.
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*/
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int read_mapped_string(uint8_t offset, char *buf);
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#endif /* COMM_HOST_H */
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