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https://github.com/Telecominfraproject/OpenCellular.git
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59bd55c41e
Split i2c.c code in two (i2c_slave.c and i2c_master.c). i2c_slave.c is
used when EC has no i2c device connected (i2c master code not needed)
but EC is connected to AP via i2c.
BRANCH=none
BUG=b:37584134
TEST=1. Compile rose board with CONFIG_I2C and CONFIG_CMD_HOSTCMD. Then
make sure EC_CMD_GET_PROTOCOL_INFO works.
2. On Kevin and Elm, cherry-pick to firmware branch respectively,
build and flash ec, i2c function works.
Change-Id: I1f95ad277713c5e30913e0a010ca03dfd9ec248c
Signed-off-by: Wei-Ning Huang <wnhuang@google.com>
Reviewed-on: https://chromium-review.googlesource.com/484999
Commit-Ready: Wei-Ning Huang <wnhuang@chromium.org>
Tested-by: Wei-Ning Huang <wnhuang@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
29 lines
759 B
C
29 lines
759 B
C
/* Copyright 2017 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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/* I2C slave cross-platform code for Chrome EC */
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#include "host_command.h"
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#include "i2c.h"
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#include "util.h"
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int i2c_get_protocol_info(struct host_cmd_handler_args *args)
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{
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struct ec_response_get_protocol_info *r = args->response;
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memset(r, 0, sizeof(*r));
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r->protocol_versions = (1 << 3);
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r->max_request_packet_size = I2C_MAX_HOST_PACKET_SIZE;
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r->max_response_packet_size = I2C_MAX_HOST_PACKET_SIZE;
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r->flags = 0;
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args->response_size = sizeof(*r);
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return EC_SUCCESS;
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}
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DECLARE_HOST_COMMAND(EC_CMD_GET_PROTOCOL_INFO,
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i2c_get_protocol_info,
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EC_VER_MASK(0));
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