segatools/cardhook/_com12.c
Tau 55c68c8094 cardhook: Wire up aimeReaderHost hook
This is an external AiMe driver process that is only used by
Chunithm AFAIK. The wiring can be easily re-used for other games.
2018-11-20 20:33:17 -05:00

179 lines
3.7 KiB
C

#include <windows.h>
#include <assert.h>
#include <stdint.h>
#include <stdio.h>
#include "board/sg-led.h"
#include "board/sg-nfc.h"
#include "cardhook/_com12.h"
#include "hook/iohook.h"
#include "hooklib/uart.h"
#include "util/dprintf.h"
#include "util/dump.h"
static HRESULT com12_handle_irp(struct irp *irp);
static HRESULT com12_handle_irp_locked(struct irp *irp);
static HRESULT com12_mifare_poll(void *ctx);
static HRESULT com12_mifare_read_luid(void *ctx, uint8_t *luid, size_t nbytes);
static HRESULT com12_led_set_color(void *ctx, uint8_t r, uint8_t g, uint8_t b);
static const struct sg_nfc_ops com12_nfc_ops = {
.mifare_poll = com12_mifare_poll,
.mifare_read_luid = com12_mifare_read_luid,
};
static const struct sg_led_ops com12_led_ops = {
.set_color = com12_led_set_color,
};
static struct sg_nfc com12_nfc;
static struct sg_led com12_led;
static const char com12_aime_path[] = "DEVICE\\aime.txt";
static CRITICAL_SECTION com12_lock;
static struct uart com12_uart;
static uint8_t com12_written_bytes[520];
static uint8_t com12_readable_bytes[520];
static uint8_t com12_aime_luid[10];
void com12_hook_init(void)
{
sg_nfc_init(&com12_nfc, 0x00, &com12_nfc_ops, NULL);
sg_led_init(&com12_led, 0x08, &com12_led_ops, NULL);
InitializeCriticalSection(&com12_lock);
uart_init(&com12_uart, 12);
com12_uart.written.bytes = com12_written_bytes;
com12_uart.written.nbytes = sizeof(com12_written_bytes);
com12_uart.readable.bytes = com12_readable_bytes;
com12_uart.readable.nbytes = sizeof(com12_readable_bytes);
iohook_push_handler(com12_handle_irp);
}
static HRESULT com12_handle_irp(struct irp *irp)
{
HRESULT hr;
assert(irp != NULL);
if (!uart_match_irp(&com12_uart, irp)) {
return iohook_invoke_next(irp);
}
EnterCriticalSection(&com12_lock);
hr = com12_handle_irp_locked(irp);
LeaveCriticalSection(&com12_lock);
return hr;
}
static HRESULT com12_handle_irp_locked(struct irp *irp)
{
HRESULT hr;
#if 0
if (irp->op == IRP_OP_WRITE) {
dprintf("WRITE:\n");
dump_const_iobuf(&irp->write);
}
#endif
#if 0
if (irp->op == IRP_OP_READ) {
dprintf("READ:\n");
dump_iobuf(&com12_uart.readable);
}
#endif
hr = uart_handle_irp(&com12_uart, irp);
if (FAILED(hr) || irp->op != IRP_OP_WRITE) {
return hr;
}
sg_nfc_transact(
&com12_nfc,
&com12_uart.readable,
com12_uart.written.bytes,
com12_uart.written.pos);
sg_led_transact(
&com12_led,
&com12_uart.readable,
com12_uart.written.bytes,
com12_uart.written.pos);
com12_uart.written.pos = 0;
return hr;
}
static HRESULT com12_mifare_poll(void *ctx)
{
HRESULT hr;
FILE *f;
size_t i;
int byte;
int r;
hr = S_FALSE;
f = NULL;
if (!(GetAsyncKeyState(VK_RETURN) & 0x8000)) {
goto end;
}
f = fopen(com12_aime_path, "r");
if (f == NULL) {
dprintf("Aime reader: Failed to open %s\n", com12_aime_path);
goto end;
}
for (i = 0 ; i < sizeof(com12_aime_luid) ; i++) {
r = fscanf(f, "%02x ", &byte);
if (r != 1) {
dprintf("Aime reader: fscanf[%i] failed: %i\n", i, r);
goto end;
}
com12_aime_luid[i] = byte;
}
hr = S_OK;
end:
if (f != NULL) {
fclose(f);
}
return hr;
}
static HRESULT com12_mifare_read_luid(void *ctx, uint8_t *luid, size_t nbytes)
{
assert(luid != NULL);
assert(nbytes == sizeof(com12_aime_luid));
memcpy(luid, com12_aime_luid, nbytes);
return S_OK;
}
static HRESULT com12_led_set_color(void *ctx, uint8_t r, uint8_t g, uint8_t b)
{
return S_OK;
}