diff options
Diffstat (limited to 'util/comm-host.h')
-rw-r--r-- | util/comm-host.h | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/util/comm-host.h b/util/comm-host.h deleted file mode 100644 index 309c97eeb5..0000000000 --- a/util/comm-host.h +++ /dev/null @@ -1,103 +0,0 @@ -/* Copyright 2013 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. - * - * For hysterical raisins, there are several mechanisms for communicating with - * the EC. This abstracts them. - */ - -#ifndef __UTIL_COMM_HOST_H -#define __UTIL_COMM_HOST_H - -#include "common.h" -#include "ec_commands.h" - -/* ec_command return value for non-success result from EC */ -#define EECRESULT 1000 - -/* Maximum output and input sizes for EC command, in bytes */ -extern int ec_max_outsize, ec_max_insize; - -/* - * Maximum-size output and input buffers, for use by callers. This saves each - * caller needing to allocate/free its own buffers. - */ -extern void *ec_outbuf; -extern void *ec_inbuf; - -/* Interfaces to allow for comm_init() */ -enum comm_interface { - COMM_DEV = BIT(0), - COMM_LPC = BIT(1), - COMM_I2C = BIT(2), - COMM_SERVO = BIT(3), - COMM_ALL = -1 -}; - -/** - * Initialize alternative interfaces - * - * @param interfaces Interfaces to try; use COMM_ALL to try all of them. - * @param device_name For DEV option, the device file to use. - * @param i2c_bus For I2C option, the bus number to use (or -1 to autodetect). - * @return 0 in case of success, or error code. - */ -int comm_init_alt(int interfaces, const char *device_name, int i2c_bus); - -/** - * Initialize dev interface - * - * @return 0 in case of success, or error code. - */ -int comm_init_dev(const char *device_name); - -/** - * Initialize input & output buffers - * - * @return 0 in case of success, or error code. - */ -int comm_init_buffer(void); - -/** - * Send a command to the EC. Returns the length of output data returned (0 if - * none), or negative on error. - */ -int ec_command(int command, int version, - const void *outdata, int outsize, /* to the EC */ - void *indata, int insize); /* from the EC */ - -/** - * Set the offset to be applied to the command number when ec_command() calls - * ec_command_proto(). - */ -void set_command_offset(int offset); - -/** - * Send a command to the EC. Returns the length of output data returned (0 if - * none), or negative on error. This is the low-level interface implemented - * by the protocol-specific driver. DO NOT call this version directly from - * anywhere but ec_command(), or the --device option will not work. - */ -extern int (*ec_command_proto)(int command, int version, - const void *outdata, int outsize, /* to EC */ - void *indata, int insize); /* from EC */ - -/** - * Return the content of the EC information area mapped as "memory". - * The offsets are defined by the EC_MEMMAP_ constants. Returns the number - * of bytes read, or negative on error. Specifying bytes=0 will read a - * string (always including the trailing '\0'). - */ -extern int (*ec_readmem)(int offset, int bytes, void *dest); - -/** - * Wait for a MKBP event matching 'mask' for at most 'timeout' milliseconds. - * Then read the incoming event content in 'buffer' (or at most - * 'buf_size' bytes of it). - * Return the size of the event read on success, 0 in case of timeout, - * or a negative value in case of error. - */ -extern int (*ec_pollevent)(unsigned long mask, void *buffer, size_t buf_size, - int timeout); - -#endif /* __UTIL_COMM_HOST_H */ |