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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 */ |