mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-09-03 23:41:57 +00:00
387ec49c1e
Change-Id: I27631d742127d0ea04a04330c155fd2b1e196556 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
/*
|
|
* Copyright (c) 2012, 2014 Wind River Systems, Inc.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1) Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2) Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* 3) Neither the name of Wind River Systems nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @brief Microkernel command packet library
|
|
*/
|
|
|
|
#include <nanokernel.h>
|
|
#include <arch/cpu.h>
|
|
#include <microkernel/command_packet.h>
|
|
#include <micro_private.h>
|
|
#include <sections.h>
|
|
|
|
/**
|
|
* Generate build error by defining a negative-size array if the hard-coded
|
|
* command packet size differs from the actual size; otherwise, define
|
|
* a zero-element array that gets thrown away by linker
|
|
*/
|
|
uint32_t _k_test_cmd_pkt_size
|
|
[0 - ((CMD_PKT_SIZE_IN_WORDS * sizeof(uint32_t)) != sizeof(struct k_args))];
|
|
|
|
/**
|
|
* @brief Get the next command packet
|
|
*
|
|
* This routine gets the next command packet from the specified set.
|
|
* @param pSet Pointer to set of command packets
|
|
*
|
|
* @return pointer to the command packet
|
|
*/
|
|
cmdPkt_t *_cmd_pkt_get(struct cmd_pkt_set *pSet)
|
|
{
|
|
uint32_t index; /* index into command packet array */
|
|
int key; /* interrupt lock level */
|
|
|
|
key = irq_lock();
|
|
index = pSet->index;
|
|
pSet->index++;
|
|
if (pSet->index >= pSet->num_packets)
|
|
pSet->index = 0;
|
|
irq_unlock(key);
|
|
|
|
return &pSet->command_packet[index];
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @brief Send command packet to be processed by _k_server
|
|
* @param cmd_packet Arguments
|
|
* @return N/A
|
|
*/
|
|
void _k_task_call(struct k_args *cmd_packet)
|
|
{
|
|
cmd_packet->alloc = false;
|
|
_k_current_task->args = cmd_packet;
|
|
nano_task_stack_push(&_k_command_stack, (uint32_t)cmd_packet);
|
|
}
|