mirror of
https://github.com/Telecominfraproject/OpenCellular.git
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70c3e30b63
LPC module no longer directly talks to UART registers, and vice-versa. Signed-off-by: Randall Spangler <rspangler@chromium.org> BUG=none TEST='ectool sertest' on target system Change-Id: Id070c0d849bdfe91c752e0af651d357b695d2648 (cherry picked from commit ab8c3c2b8e3b08a4bf5573cda3a12dd3a384e67d)
35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
/* Copyright (c) 2011 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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/* LPC module for Chrome EC */
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#ifndef __CROS_EC_LPC_H
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#define __CROS_EC_LPC_H
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#include "common.h"
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/* Initializes the LPC module. */
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int lpc_init(void);
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/* Returns a pointer to the host command data buffer. This buffer
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* must only be accessed between a notification to
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* host_command_received() and a subsequent call to
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* lpc_SendHostResponse(). <slot> is 0 for kernel-originated
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* commands, 1 for usermode-originated commands. */
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uint8_t *lpc_get_host_range(int slot);
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/* Sends a response to a host command. The bottom 4 bits of <status>
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* are sent in the status byte. <slot> is 0 for kernel-originated
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* commands, 1 for usermode-originated commands. */
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void lpc_send_host_response(int slot, int status);
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/* Returns non-zero if the COMx interface has received a character. */
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int lpc_comx_has_char(void);
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/* Returns the next character pending on the COMx interface. */
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int lpc_comx_get_char(void);
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#endif /* __CROS_EC_LPC_H */
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