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| author | Vincent Palatin <vpalatin@chromium.org> | 2012-05-24 21:39:12 +0000 |
|---|---|---|
| committer | Vincent Palatin <vpalatin@chromium.org> | 2012-05-24 23:34:01 +0000 |
| commit | 304d207117bb82db7f38303ba402c6f1be1112a8 (patch) | |
| tree | 49e832bffd61dcd981c856237dabdf13424beb0f /util/comm-host.h | |
| parent | b0fe45560828542ec3dd129db7d9cf59e92349d4 (diff) | |
| download | chrome-ec-304d207117bb82db7f38303ba402c6f1be1112a8.tar.gz | |
Split communication functions from host tools
Preparatory work to re-use the tools on ARM boards using I2C
communications.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BUG=None
TEST=make BOARD=link && make BOARD=bds && make BOard=DAISY
Change-Id: I31d41f30c3231a4a9349b939bf6bba871ed4c383
Diffstat (limited to 'util/comm-host.h')
| -rw-r--r-- | util/comm-host.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/util/comm-host.h b/util/comm-host.h new file mode 100644 index 0000000000..9647a06218 --- /dev/null +++ b/util/comm-host.h @@ -0,0 +1,29 @@ +/* Copyright (c) 2012 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. + */ + +#ifndef COMM_HOST_H +#define COMM_HOST_H + +#include <stdint.h> + +/* Perform initializations needed for subsequent requests + * + * returns 0 in case of success or error code. */ +int comm_init(void); + +/* Sends a command to the EC. Returns the command status code, or + * -1 if other error. */ +int ec_command(int command, const void *indata, int insize, + void *outdata, int outsize); + +/* Returns the content of the EC information area mapped as "memory". + * + * the offsets are defined by the EC_MEMMAP_ constants. */ +uint8_t read_mapped_mem8(uint8_t offset); +uint16_t read_mapped_mem16(uint8_t offset); +uint32_t read_mapped_mem32(uint8_t offset); +int read_mapped_string(uint8_t offset, char *buf); + +#endif /* COMM_HOST_H */ |