Browse Source

Button mapping framework

pull/5/head
Raphael Assenat 6 years ago
parent
commit
c07beb0734
3 changed files with 99 additions and 0 deletions
  1. +80
    -0
      mappings.c
  2. +16
    -0
      mappings.h
  3. +3
    -0
      usbpad.h

+ 80
- 0
mappings.c View File

@ -0,0 +1,80 @@
#include "mappings.h"
#include "gamepads.h"
#include "usbpad.h"
/* Default N64 and Gamecube mappings meant to work together
* i.e. Controllers should be mostly interchangeable
*
* - Main buttons first
* - Common buttons at the same place
* - Similar layout for GC Y/X and N64 C-Left and C-Down
*/
static struct mapping map_gc_default[] = {
{ GC_BTN_A, USB_BTN(0) },
{ GC_BTN_B, USB_BTN(1) },
{ GC_BTN_Z, USB_BTN(2) },
{ GC_BTN_START, USB_BTN(3) },
{ GC_BTN_L, USB_BTN(4) },
{ GC_BTN_R, USB_BTN(5) },
{ GC_BTN_Y, USB_BTN(8) }, // N64 C-Left
{ GC_BTN_X, USB_BTN(7) }, // N64 C-Down
{ GC_BTN_DPAD_UP, USB_BTN(10) },
{ GC_BTN_DPAD_DOWN, USB_BTN(11) },
{ GC_BTN_DPAD_LEFT, USB_BTN(12) },
{ GC_BTN_DPAD_RIGHT, USB_BTN(13) },
{ } /* terminator */
};
static struct mapping map_n64_default[] = {
{ N64_BTN_A, USB_BTN(0) },
{ N64_BTN_B, USB_BTN(1) },
{ N64_BTN_Z, USB_BTN(2) },
{ N64_BTN_START, USB_BTN(3) },
{ N64_BTN_L, USB_BTN(4) },
{ N64_BTN_R, USB_BTN(5) },
{ N64_BTN_C_UP, USB_BTN(6) },
{ N64_BTN_C_DOWN, USB_BTN(7) }, // GC X
{ N64_BTN_C_LEFT, USB_BTN(8) }, // GC_Y
{ N64_BTN_C_RIGHT, USB_BTN(9) },
{ N64_BTN_DPAD_UP, USB_BTN(10) },
{ N64_BTN_DPAD_DOWN, USB_BTN(11) },
{ N64_BTN_DPAD_LEFT, USB_BTN(12) },
{ N64_BTN_DPAD_RIGHT, USB_BTN(13) },
{ } /* terminator */
};
static uint16_t domap(const struct mapping *map, uint16_t input)
{
const struct mapping *cur = map;
uint16_t out = 0;
while (cur->ctl_btn && cur->usb_btn) {
if (input & cur->ctl_btn) {
out |= cur->usb_btn;
}
cur++;
}
return out;
}
uint16_t mappings_do(uint8_t mapping_id, uint16_t input)
{
switch(mapping_id) {
case MAPPING_GAMECUBE_DEFAULT:
return domap(map_gc_default, input);
case MAPPING_N64_DEFAULT:
return domap(map_n64_default, input);
}
return 0;
}

+ 16
- 0
mappings.h View File

@ -0,0 +1,16 @@
#ifndef _mappings_h__
#define _mappings_h__
#include <stdint.h>
struct mapping {
uint16_t ctl_btn;
uint16_t usb_btn;
};
#define MAPPING_GAMECUBE_DEFAULT 0x00
#define MAPPING_N64_DEFAULT 0x10
uint16_t mappings_do(uint8_t mapping_id, uint16_t input);
#endif // _mappings_h__

+ 3
- 0
usbpad.h View File

@ -5,4 +5,7 @@ void usbpad_init(void);
int usbpad_getReportSize(void);
void usbpad_buildReport(const gamepad_data *pad_data, unsigned char *dstbuf);
// For mappings. ID starts at 0.
#define USB_BTN(id) (0x0001 << (id))
#endif // USBPAD_H__

Loading…
Cancel
Save