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Store button mappings in program space

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This commit is contained in:
Raphael Assenat 2015-10-29 22:41:32 -04:00
parent b7b07a37ee
commit ef7a06c304
1 changed files with 13 additions and 5 deletions
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18
mappings.c
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@ -1,3 +1,4 @@
#include <avr/pgmspace.h>
#include "mappings.h"
#include "gamepads.h"
#include "usbpad.h"
@ -10,7 +11,7 @@
* - Similar layout for GC Y/X and N64 C-Left and C-Down
*/
static struct mapping map_gc_default[] = {
const static struct mapping map_gc_default[] PROGMEM = {
{ GC_BTN_A, USB_BTN(0) },
{ GC_BTN_B, USB_BTN(1) },
{ GC_BTN_Z, USB_BTN(2) },
@ -30,7 +31,7 @@ static struct mapping map_gc_default[] = {
{ } /* terminator */
};
static struct mapping map_n64_default[] = {
const static struct mapping map_n64_default[] PROGMEM = {
{ N64_BTN_A, USB_BTN(0) },
{ N64_BTN_B, USB_BTN(1) },
{ N64_BTN_Z, USB_BTN(2) },
@ -56,10 +57,17 @@ static uint16_t domap(const struct mapping *map, uint16_t input)
{
const struct mapping *cur = map;
uint16_t out = 0;
uint16_t ctl_btn, usb_btn;
while (cur->ctl_btn && cur->usb_btn) {
if (input & cur->ctl_btn) {
out |= cur->usb_btn;
while (1) {
ctl_btn = pgm_read_word(&cur->ctl_btn);
usb_btn = pgm_read_word(&cur->usb_btn);
if (!ctl_btn || !usb_btn)
break;
if (input & ctl_btn) {
out |= usb_btn;
}
cur++;
}