ac74d8b652
Replace the existing Apache 2.0 boilerplate header with an SPDX tag throughout the zephyr code tree. This patch was generated via a script run over the master branch. Also updated doc/porting/application.rst that had a dependency on line numbers in a literal include. Manually updated subsys/logging/sys_log.c that had a malformed header in the original file. Also cleanup several cases that already had a SPDX tag and we either got a duplicate or missed updating. Jira: ZEP-1457 Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c Signed-off-by: David B. Kinder <david.b.kinder@intel.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
106 lines
2.3 KiB
C
106 lines
2.3 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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* SPDX-License-Identifier: Apache-2.0
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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 <kernel.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 thread 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 thread, 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 *thread_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 thread to print out messages */
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struct k_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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