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Diffstat (limited to 'libraries/mbed/rtos/rtx/TARGET_CORTEX_M/rt_Mailbox.c')
-rw-r--r--libraries/mbed/rtos/rtx/TARGET_CORTEX_M/rt_Mailbox.c292
1 files changed, 0 insertions, 292 deletions
diff --git a/libraries/mbed/rtos/rtx/TARGET_CORTEX_M/rt_Mailbox.c b/libraries/mbed/rtos/rtx/TARGET_CORTEX_M/rt_Mailbox.c
deleted file mode 100644
index ef28b76..0000000
--- a/libraries/mbed/rtos/rtx/TARGET_CORTEX_M/rt_Mailbox.c
+++ /dev/null
@@ -1,292 +0,0 @@
-/*----------------------------------------------------------------------------
- * RL-ARM - RTX
- *----------------------------------------------------------------------------
- * Name: RT_MAILBOX.C
- * Purpose: Implements waits and wake-ups for mailbox messages
- * Rev.: V4.60
- *----------------------------------------------------------------------------
- *
- * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
- * All rights reserved.
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * - 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.
- * - Neither the name of ARM 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 COPYRIGHT HOLDERS AND 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.
- *---------------------------------------------------------------------------*/
-
-#include "rt_TypeDef.h"
-#include "RTX_Conf.h"
-#include "rt_System.h"
-#include "rt_List.h"
-#include "rt_Mailbox.h"
-#include "rt_MemBox.h"
-#include "rt_Task.h"
-#include "rt_HAL_CM.h"
-
-
-/*----------------------------------------------------------------------------
- * Functions
- *---------------------------------------------------------------------------*/
-
-
-/*--------------------------- rt_mbx_init -----------------------------------*/
-
-void rt_mbx_init (OS_ID mailbox, U16 mbx_size) {
- /* Initialize a mailbox */
- P_MCB p_MCB = mailbox;
-
- p_MCB->cb_type = MCB;
- p_MCB->state = 0;
- p_MCB->isr_st = 0;
- p_MCB->p_lnk = NULL;
- p_MCB->first = 0;
- p_MCB->last = 0;
- p_MCB->count = 0;
- p_MCB->size = (mbx_size + sizeof(void *) - sizeof(struct OS_MCB)) /
- (U32)sizeof (void *);
-}
-
-
-/*--------------------------- rt_mbx_send -----------------------------------*/
-
-OS_RESULT rt_mbx_send (OS_ID mailbox, void *p_msg, U16 timeout) {
- /* Send message to a mailbox */
- P_MCB p_MCB = mailbox;
- P_TCB p_TCB;
-
- if ((p_MCB->p_lnk != NULL) && (p_MCB->state == 1)) {
- /* A task is waiting for message */
- p_TCB = rt_get_first ((P_XCB)p_MCB);
-#ifdef __CMSIS_RTOS
- rt_ret_val2(p_TCB, 0x10/*osEventMessage*/, (U32)p_msg);
-#else
- *p_TCB->msg = p_msg;
- rt_ret_val (p_TCB, OS_R_MBX);
-#endif
- rt_rmv_dly (p_TCB);
- rt_dispatch (p_TCB);
- }
- else {
- /* Store message in mailbox queue */
- if (p_MCB->count == p_MCB->size) {
- /* No free message entry, wait for one. If message queue is full, */
- /* then no task is waiting for message. The 'p_MCB->p_lnk' list */
- /* pointer can now be reused for send message waits task list. */
- if (timeout == 0) {
- return (OS_R_TMO);
- }
- if (p_MCB->p_lnk != NULL) {
- rt_put_prio ((P_XCB)p_MCB, os_tsk.run);
- }
- else {
- p_MCB->p_lnk = os_tsk.run;
- os_tsk.run->p_lnk = NULL;
- os_tsk.run->p_rlnk = (P_TCB)p_MCB;
- /* Task is waiting to send a message */
- p_MCB->state = 2;
- }
- os_tsk.run->msg = p_msg;
- rt_block (timeout, WAIT_MBX);
- return (OS_R_TMO);
- }
- /* Yes, there is a free entry in a mailbox. */
- p_MCB->msg[p_MCB->first] = p_msg;
- rt_inc (&p_MCB->count);
- if (++p_MCB->first == p_MCB->size) {
- p_MCB->first = 0;
- }
- }
- return (OS_R_OK);
-}
-
-
-/*--------------------------- rt_mbx_wait -----------------------------------*/
-
-OS_RESULT rt_mbx_wait (OS_ID mailbox, void **message, U16 timeout) {
- /* Receive a message; possibly wait for it */
- P_MCB p_MCB = mailbox;
- P_TCB p_TCB;
-
- /* If a message is available in the fifo buffer */
- /* remove it from the fifo buffer and return. */
- if (p_MCB->count) {
- *message = p_MCB->msg[p_MCB->last];
- if (++p_MCB->last == p_MCB->size) {
- p_MCB->last = 0;
- }
- if ((p_MCB->p_lnk != NULL) && (p_MCB->state == 2)) {
- /* A task is waiting to send message */
- p_TCB = rt_get_first ((P_XCB)p_MCB);
-#ifdef __CMSIS_RTOS
- rt_ret_val(p_TCB, 0/*osOK*/);
-#else
- rt_ret_val(p_TCB, OS_R_OK);
-#endif
- p_MCB->msg[p_MCB->first] = p_TCB->msg;
- if (++p_MCB->first == p_MCB->size) {
- p_MCB->first = 0;
- }
- rt_rmv_dly (p_TCB);
- rt_dispatch (p_TCB);
- }
- else {
- rt_dec (&p_MCB->count);
- }
- return (OS_R_OK);
- }
- /* No message available: wait for one */
- if (timeout == 0) {
- return (OS_R_TMO);
- }
- if (p_MCB->p_lnk != NULL) {
- rt_put_prio ((P_XCB)p_MCB, os_tsk.run);
- }
- else {
- p_MCB->p_lnk = os_tsk.run;
- os_tsk.run->p_lnk = NULL;
- os_tsk.run->p_rlnk = (P_TCB)p_MCB;
- /* Task is waiting to receive a message */
- p_MCB->state = 1;
- }
- rt_block(timeout, WAIT_MBX);
-#ifndef __CMSIS_RTOS
- os_tsk.run->msg = message;
-#endif
- return (OS_R_TMO);
-}
-
-
-/*--------------------------- rt_mbx_check ----------------------------------*/
-
-OS_RESULT rt_mbx_check (OS_ID mailbox) {
- /* Check for free space in a mailbox. Returns the number of messages */
- /* that can be stored to a mailbox. It returns 0 when mailbox is full. */
- P_MCB p_MCB = mailbox;
-
- return (p_MCB->size - p_MCB->count);
-}
-
-
-/*--------------------------- isr_mbx_send ----------------------------------*/
-
-void isr_mbx_send (OS_ID mailbox, void *p_msg) {
- /* Same function as "os_mbx_send", but to be called by ISRs. */
- P_MCB p_MCB = mailbox;
-
- rt_psq_enq (p_MCB, (U32)p_msg);
- rt_psh_req ();
-}
-
-
-/*--------------------------- isr_mbx_receive -------------------------------*/
-
-OS_RESULT isr_mbx_receive (OS_ID mailbox, void **message) {
- /* Receive a message in the interrupt function. The interrupt function */
- /* should not wait for a message since this would block the rtx os. */
- P_MCB p_MCB = mailbox;
-
- if (p_MCB->count) {
- /* A message is available in the fifo buffer. */
- *message = p_MCB->msg[p_MCB->last];
- if (p_MCB->state == 2) {
- /* A task is locked waiting to send message */
- rt_psq_enq (p_MCB, 0);
- rt_psh_req ();
- }
- rt_dec (&p_MCB->count);
- if (++p_MCB->last == p_MCB->size) {
- p_MCB->last = 0;
- }
- return (OS_R_MBX);
- }
- return (OS_R_OK);
-}
-
-
-/*--------------------------- rt_mbx_psh ------------------------------------*/
-
-void rt_mbx_psh (P_MCB p_CB, void *p_msg) {
- /* Store the message to the mailbox queue or pass it to task directly. */
- P_TCB p_TCB;
- void *mem;
-
- if (p_CB->p_lnk != NULL) switch (p_CB->state) {
-#ifdef __CMSIS_RTOS
- case 3:
- /* Task is waiting to allocate memory, remove it from the waiting list */
- mem = rt_alloc_box(p_msg);
- if (mem == NULL) break;
- p_TCB = rt_get_first ((P_XCB)p_CB);
- rt_ret_val(p_TCB, (U32)mem);
- p_TCB->state = READY;
- rt_rmv_dly (p_TCB);
- rt_put_prio (&os_rdy, p_TCB);
- break;
-#endif
- case 2:
- /* Task is waiting to send a message, remove it from the waiting list */
- p_TCB = rt_get_first ((P_XCB)p_CB);
-#ifdef __CMSIS_RTOS
- rt_ret_val(p_TCB, 0/*osOK*/);
-#else
- rt_ret_val(p_TCB, OS_R_OK);
-#endif
- p_CB->msg[p_CB->first] = p_TCB->msg;
- rt_inc (&p_CB->count);
- if (++p_CB->first == p_CB->size) {
- p_CB->first = 0;
- }
- p_TCB->state = READY;
- rt_rmv_dly (p_TCB);
- rt_put_prio (&os_rdy, p_TCB);
- break;
- case 1:
- /* Task is waiting for a message, pass the message to the task directly */
- p_TCB = rt_get_first ((P_XCB)p_CB);
-#ifdef __CMSIS_RTOS
- rt_ret_val2(p_TCB, 0x10/*osEventMessage*/, (U32)p_msg);
-#else
- *p_TCB->msg = p_msg;
- rt_ret_val (p_TCB, OS_R_MBX);
-#endif
- p_TCB->state = READY;
- rt_rmv_dly (p_TCB);
- rt_put_prio (&os_rdy, p_TCB);
- break;
- } else {
- /* No task is waiting for a message, store it to the mailbox queue */
- if (p_CB->count < p_CB->size) {
- p_CB->msg[p_CB->first] = p_msg;
- rt_inc (&p_CB->count);
- if (++p_CB->first == p_CB->size) {
- p_CB->first = 0;
- }
- }
- else {
- os_error (OS_ERR_MBX_OVF);
- }
- }
-}
-
-/*----------------------------------------------------------------------------
- * end of file
- *---------------------------------------------------------------------------*/
-
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