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80e36e0254
- 'port80 intprint' toggles printing port 80 codes in interrupt handler (turning that off speeds up port 80 capture a bit, if you're sending port 80 codes very rapidly) - 'port80 flush' flushes the log buffer - log buffer expanded to 256 entries - log buffer tracks S3->S0 power state transitions, so you can tell where each boot starts This uses ~500 bytes more RAM on the EC, but we've got piles of RAM (with this change we're using 17KB out of 32KB). BUG=none TEST=manual - boot system - port80 -> prints data - port80 intprint -> now disabled - reboot; wait for reboot; no port80 debug output during boot - port80 -> prints data from previous boot AND this one - port80 flush - port80 -> nothing in log Change-Id: I64ee72fb13ab0fdd85d04b9640b5390fdac31400 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/29420 Reviewed-by: Bill Richardson <wfrichar@chromium.org> Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
25 lines
555 B
C
25 lines
555 B
C
/* Copyright (c) 2012 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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/* Port 80 module for Chrome EC */
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#ifndef __CROS_EC_PORT80_H
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#define __CROS_EC_PORT80_H
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#include "common.h"
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enum port_80_event {
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PORT_80_EVENT_RESUME = 0x1001, /* S3->S0 transition */
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};
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/**
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* Store data from a LPC write to port 80, or a port_80_event code.
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*
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* @param data Data written to port 80.
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*/
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void port_80_write(int data);
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#endif /* __CROS_EC_PORT80_H */
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