926a368991
These console messages are for debugging and if sent too rapidly, could be discarded. This was causing false positives on test cases which rely on console output to determine success or failure. Issue: ZEP-704 Change-Id: I5a86c761311cde90f295cd2e65f2e70608f875fa Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
116 lines
2.8 KiB
C
116 lines
2.8 KiB
C
/* ipm_console.c - Console messages to/from another processor */
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/*
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* Copyright (c) 2015 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _IPM_CONSOLE_H_
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#define _IPM_CONSOLE_H_
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#include <nanokernel.h>
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#include <device.h>
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#include <misc/ring_buffer.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define IPM_CONSOLE_STDOUT (1 << 0)
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#define IPM_CONSOLE_PRINTK (1 << 1)
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/*
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* Good way to determine these numbers other than trial-and-error?
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* using printf() in the fiber seems to require a lot more stack space
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*/
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#define IPM_CONSOLE_STACK_SIZE 512
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#define IPM_CONSOLE_PRI 2
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struct ipm_console_receiver_config_info {
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/** Name of the low-level IPM driver to bind to */
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char *bind_to;
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/**
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* Stack for the receiver's fiber, which prints out messages as
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* they come in. Should be sized IPM_CONSOLE_STACK_SIZE
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*/
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char *fiber_stack;
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/**
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* Ring buffer data area for stashing characters from the interrupt
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* callback
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*/
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uint32_t *ring_buf_data;
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/** Size of ring_buf_data in 32-bit chunks */
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unsigned int rb_size32;
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/**
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* Line buffer for incoming messages, characters accumulate here
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* and then are sent to printk() once full (including a trailing NULL)
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* or a carriage return seen
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*/
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char *line_buf;
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/** Size in bytes of the line buffer. Must be at least 2 */
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unsigned int lb_size;
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/**
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* Destination for received console messages, one of
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* IPM_CONSOLE_STDOUT or IPM_CONSOLE_PRINTK
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*/
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unsigned int flags;
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};
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struct ipm_console_receiver_runtime_data {
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/** Buffer for received bytes from the low-level IPM device */
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struct ring_buf rb;
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/** Semaphore to wake up the fiber to print out messages */
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struct nano_sem sem;
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/** pointer to the bound low-level IPM device */
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struct device *ipm_device;
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/** Indicator that the channel is temporarily disabled due to
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* full buffer
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*/
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int channel_disabled;
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};
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struct ipm_console_sender_config_info {
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/** Name of the low-level driver to bind to */
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char *bind_to;
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/**
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* Source of messages to forward, hooks will be installed.
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* Can be IPM_CONSOLE_STDOUT, IPM_CONSOLE_PRINTK, or both
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*/
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int flags;
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};
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#if CONFIG_IPM_CONSOLE_RECEIVER
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int ipm_console_receiver_init(struct device *d);
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#endif
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#if CONFIG_IPM_CONSOLE_SENDER
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int ipm_console_sender_init(struct device *d);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _IPM_CONSOLE_H_ */
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