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111c893524
Modify the stm32f0 i2c driver to support the new TCPC interface. BUG=none BRANCH=none TEST=test on oak Change-Id: Ibcb205e67d59d99a97dce090bd84bbb714ad5032 Signed-off-by: Alec Berg <alecaberg@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/270173 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/* Copyright 2015 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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/* USB Power delivery port controller */
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#ifndef __USB_PD_TCPC_H
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#define __USB_PD_TCPC_H
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#ifndef CONFIG_TCPC_I2C_BASE_ADDR
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#define CONFIG_TCPC_I2C_BASE_ADDR 0x9c
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#endif
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/* If we are a TCPC but do not a TCPM, then we implement the slave TCPCI */
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#if defined(CONFIG_USB_PD_TCPC) && !defined(CONFIG_USB_PD_TCPM_STUB)
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#define TCPCI_I2C_SLAVE
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#endif
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#ifdef TCPCI_I2C_SLAVE
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/* Convert TCPC address to type-C port number */
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#define TCPC_ADDR_TO_PORT(addr) (((addr) - CONFIG_TCPC_I2C_BASE_ADDR) >> 1)
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/* Check if the i2c address belongs to TCPC */
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#define ADDR_IS_TCPC(addr) (((addr) & 0xfc) == CONFIG_TCPC_I2C_BASE_ADDR)
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#endif
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/**
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* Process incoming TCPCI I2C command
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*
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* @param read This is a read request. If 0, this is a write request.
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* @param len Length of incoming payload
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* @param payload Pointer to incoming and outgoing data
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* @param send_response Function to call to send response if necessary
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*/
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void tcpc_i2c_process(int read, int port, int len, uint8_t *payload,
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void (*send_response)(int));
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#endif /* __USB_PD_TCPC_H */
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