+++ /dev/null
-/*
- * Copyright © 2012 Keith Packard <keithp@keithp.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- */
-
-#ifndef _AO_TASK_H_
-#define _AO_TASK_H_
-#if HAS_TASK_QUEUE
-#include <ao_list.h>
-#endif
-
-#ifndef HAS_TASK_INFO
-#define HAS_TASK_INFO 1
-#endif
-
-/* An AltOS task */
-struct ao_task {
- __xdata void *wchan; /* current wait channel (NULL if running) */
- uint16_t alarm; /* abort ao_sleep time */
- ao_arch_task_members /* any architecture-specific fields */
- uint8_t task_id; /* unique id */
- __code char *name; /* task name */
-#if HAS_TASK_QUEUE
- struct ao_list queue;
- struct ao_list alarm_queue;
-#endif
- uint8_t stack[AO_STACK_SIZE]; /* saved stack */
-#if HAS_SAMPLE_PROFILE
- uint32_t ticks;
- uint32_t yields;
- uint16_t start;
- uint16_t max_run;
-#endif
-};
-
-#ifndef AO_NUM_TASKS
-#define AO_NUM_TASKS 16 /* maximum number of tasks */
-#endif
-
-#define AO_NO_TASK 0 /* no task id */
-
-extern __xdata struct ao_task * __xdata ao_tasks[AO_NUM_TASKS];
-extern __data uint8_t ao_num_tasks;
-extern __xdata struct ao_task *__data ao_cur_task;
-extern __data uint8_t ao_task_minimize_latency; /* Reduce IRQ latency */
-
-/*
- ao_task.c
- */
-
-/* Suspend the current task until wchan is awoken.
- * returns:
- * 0 on normal wake
- * 1 on alarm
- */
-uint8_t
-ao_sleep(__xdata void *wchan);
-
-/* Wake all tasks sleeping on wchan */
-void
-ao_wakeup(__xdata void *wchan) __reentrant;
-
-/* set an alarm to go off in 'delay' ticks */
-void
-ao_alarm(uint16_t delay);
-
-/* Clear any pending alarm */
-void
-ao_clear_alarm(void);
-
-/* Yield the processor to another task */
-void
-ao_yield(void) ao_arch_naked_declare;
-
-/* Add a task to the run queue */
-void
-ao_add_task(__xdata struct ao_task * task, void (*start)(void), __code char *name) __reentrant;
-
-#if HAS_TASK_QUEUE
-/* Called on timer interrupt to check alarms */
-extern uint16_t ao_task_alarm_tick;
-void
-ao_task_check_alarm(uint16_t tick);
-#endif
-
-/* Terminate the current task */
-void
-ao_exit(void);
-
-/* Dump task info to console */
-void
-ao_task_info(void);
-
-/* Start the scheduler. This will not return */
-void
-ao_start_scheduler(void);
-
-#if HAS_TASK_QUEUE
-void
-ao_task_init(void);
-#else
-#define ao_task_init()
-#endif
-
-#endif