X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=ao_task.c;h=f79d6e1f184aa530917f59050856a00256b61860;hp=0e976d7c4247e5e341c40684c2d62a8e2c59018c;hb=5e2393eb6b1a6d7b180bd63d5165ee7b7ff5f9e0;hpb=823f4f92de0c1f8dd7a644a8e56ffe9822bee6e2 diff --git a/ao_task.c b/ao_task.c index 0e976d7c..f79d6e1f 100644 --- a/ao_task.c +++ b/ao_task.c @@ -17,11 +17,11 @@ #include "ao.h" -#define AO_NO_TASK 0xff +#define AO_NO_TASK_INDEX 0xff __xdata struct ao_task * __xdata ao_tasks[AO_NUM_TASKS]; __data uint8_t ao_num_tasks; -__data uint8_t ao_cur_task_id; +__data uint8_t ao_cur_task_index; __xdata struct ao_task *__data ao_cur_task; void @@ -29,8 +29,9 @@ ao_add_task(__xdata struct ao_task * task, void (*start)(void)) { uint8_t __xdata *stack; if (ao_num_tasks == AO_NUM_TASKS) - ao_panic(AO_ERROR_NO_TASK); + ao_panic(AO_PANIC_NO_TASK); ao_tasks[ao_num_tasks++] = task; + task->task_id = ao_num_tasks; /* * Construct a stack frame so that it will 'return' * to the start of the task @@ -94,7 +95,7 @@ ao_yield(void) _naked push _bp _endasm; - if (ao_cur_task_id != AO_NO_TASK) + if (ao_cur_task_index != AO_NO_TASK_INDEX) { /* Save the current stack */ stack_len = SP - (AO_STACK_START - 1); @@ -112,10 +113,10 @@ ao_yield(void) _naked * this loop will run forever, which is just fine */ for (;;) { - ++ao_cur_task_id; - if (ao_cur_task_id == ao_num_tasks) - ao_cur_task_id = 0; - ao_cur_task = ao_tasks[ao_cur_task_id]; + ++ao_cur_task_index; + if (ao_cur_task_index == ao_num_tasks) + ao_cur_task_index = 0; + ao_cur_task = ao_tasks[ao_cur_task_index]; if (ao_cur_task->wchan == NULL) break; } @@ -162,7 +163,9 @@ ao_yield(void) _naked int ao_sleep(__xdata void *wchan) { + __critical { ao_cur_task->wchan = wchan; + } ao_yield(); } @@ -179,8 +182,8 @@ ao_wakeup(__xdata void *wchan) void ao_start_scheduler(void) { - ao_cur_task_id = AO_NO_TASK; + + ao_cur_task_index = AO_NO_TASK_INDEX; ao_cur_task = NULL; - ao_timer_init(); ao_yield(); }