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I will never be able to sleep before an exam

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This commit is contained in:
Brett Weiland 2023-10-27 08:17:36 -05:00
parent 03a3acd11b
commit eb86bdacd8
1 changed files with 14 additions and 8 deletions
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22
software_pwm.c
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@ -27,15 +27,22 @@ static struct pwm_event {
#define LIST_INSERT(new, prev, member) (\
list_insert(&(new.member), &(prev.member), offsetof(struct pwm_event, member)))
//TODO GYAAAAAAAGH!!!
#define EVENT_FROM_MEMBER(member_ptr, member_offset) \
((struct pwm_event *)(char *)member_ptr - member_offset)
#define MEMBER_FROM_EVENT(event_ptr, member_offset) \
((struct link_pair *)(char *)event_
static void list_insert(struct link_pair *new_links, struct link_pair *prev_links, size_t parent_offset) {
new_links->next = prev_links->next;
new_links->prev = (struct pwm_event *)(char *)prev_links - parent_offset;
((struct link_pair *)(char *)prev_links->next + parent_offset)->prev = (struct pwm_event *)(char *)new_links - parent_offset; //GYAAAAGH
prev_links->next = (struct pwm_event *)(char *)new_links - parent_offset;
new_links->prev = EVENT_FROM_MEMBER(prev_links, parent_offset);
((struct link_pair *)(char *)prev_links->next + parent_offset)->prev =
EVENT_FROM_MEMBER(new_links, parent_offset); //GYAAAAGH
prev_links->next = EVENT_FROM_MEMBER(prev_links, parent_offset);
}
static void list_remove(struct link_pair *event) {
static void list_remove(struct link_pair *event_link, size_t parent_offset) {
event_link->prev
}
void init_softpwm() {
@ -51,7 +58,8 @@ void init_softpwm() {
for(size_t event_i = 0; event_i < SOFTPWM_PIN_COUNT; event_i++) {
events[event_i].time = event_i;
events[event_i].pins = (1 << (event_i + 1)) - 1;
LIST_INSERT(events[event_i], events[((int)event_i - 1) % (SOFTPWM_PIN_COUNT + 1)], active);
LIST_INSERT(events[event_i],
events[((int)event_i - 1) % (SOFTPWM_PIN_COUNT + 1)], active);
}
SOFTPWM_DDR = 0xff;
@ -84,10 +92,8 @@ ISR(TIMER0_OVF_vect) {
**/
ISR(TIMER0_COMP_vect) {
/**
static struct pwm_event *on_event = &events[SOFTPWM_PIN_COUNT];
SOFTPWM_PORT = on_event->pins;
on_event = on_event->next;
OCR0A = on_event->time;
**/
}