mirror of
https://github.com/raphnet/gc_n64_usb-v3
synced 2024-12-22 07:18:52 -05:00
139 lines
2.9 KiB
C
139 lines
2.9 KiB
C
#include <stdio.h>
|
|
#include <string.h>
|
|
#include "requests.h"
|
|
#include "config.h"
|
|
#include "hiddata.h"
|
|
#include "bootloader.h"
|
|
#include "gcn64_protocol.h"
|
|
#include "version.h"
|
|
|
|
#define CMDBUF_SIZE 64
|
|
|
|
#define STATE_IDLE 0
|
|
#define STATE_NEW_COMMAND 1 // New command in buffer
|
|
#define STATE_COMMAND_DONE 2 // Result in buffer
|
|
|
|
//#define DEBUG
|
|
|
|
extern char g_polling_suspended;
|
|
|
|
static volatile uint8_t state = STATE_IDLE;
|
|
static unsigned char cmdbuf[CMDBUF_SIZE];
|
|
static volatile unsigned char cmdbuf_len = 0;
|
|
|
|
/*** Get/Set report called from interrupt context! */
|
|
uint16_t hiddata_get_report(struct usb_request *rq, const uint8_t **dat)
|
|
{
|
|
// printf("Get data\n");
|
|
if (state == STATE_COMMAND_DONE) {
|
|
*dat = cmdbuf;
|
|
state = STATE_IDLE;
|
|
#ifdef DEBUG
|
|
printf("hiddata idle, sent %d bytes\r\n", cmdbuf_len);
|
|
#endif
|
|
return cmdbuf_len;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*** Get/Set report called from interrupt context! */
|
|
uint8_t hiddata_set_report(const struct usb_request *rq, const uint8_t *dat, uint16_t len)
|
|
{
|
|
#ifdef DEBUG
|
|
int i;
|
|
printf("Set data %d\n", len);
|
|
for (i=0; i<len; i++) {
|
|
printf("0x%02x ", dat[i]);
|
|
}
|
|
printf("\r\n");
|
|
#endif
|
|
|
|
state = STATE_NEW_COMMAND;
|
|
memcpy(cmdbuf, dat, len);
|
|
cmdbuf_len = len;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hiddata_processCommandBuffer(void)
|
|
{
|
|
int bits;
|
|
unsigned char channel;
|
|
#ifdef DEBUG
|
|
int i;
|
|
#endif
|
|
|
|
if (cmdbuf_len < 1) {
|
|
state = STATE_IDLE;
|
|
return;
|
|
}
|
|
|
|
// printf("Process cmd 0x%02x\r\n", cmdbuf[0]);
|
|
switch(cmdbuf[0])
|
|
{
|
|
case RQ_GCN64_JUMP_TO_BOOTLOADER:
|
|
enterBootLoader();
|
|
break;
|
|
case RQ_GCN64_RAW_SI_COMMAND:
|
|
// TODO : Range checking
|
|
// cmdbuf[] : RQ, CHN, LEN, data[]
|
|
channel = cmdbuf[1];
|
|
bits = gcn64_transaction(cmdbuf+3, cmdbuf[2]);
|
|
cmdbuf_len = bits / 8; // The above return a number of bits
|
|
gcn64_protocol_getBytes(0, cmdbuf_len, cmdbuf + 3);
|
|
cmdbuf[2] = cmdbuf_len;
|
|
cmdbuf_len += 3; // Answer: RQ, CHN, LEN, data[]
|
|
break;
|
|
case RQ_GCN64_GET_CONFIG_PARAM:
|
|
// Cmd : RQ, PARAM
|
|
// Answer: RQ, PARAM, data[]
|
|
cmdbuf_len = config_getParam(cmdbuf[1], cmdbuf + 2, CMDBUF_SIZE-2);
|
|
cmdbuf_len += 2; // Datalen + RQ + PARAM
|
|
break;
|
|
case RQ_GCN64_SET_CONFIG_PARAM:
|
|
// Cmd: RQ, PARAM, data[]
|
|
config_setParam(cmdbuf[1], cmdbuf+2);
|
|
// Answer: RQ, PARAM
|
|
cmdbuf_len = 2;
|
|
break;
|
|
case RQ_GCN64_SUSPEND_POLLING:
|
|
// CMD: RQ, PARAM
|
|
g_polling_suspended = cmdbuf[1];
|
|
break;
|
|
case RQ_GCN64_GET_VERSION:
|
|
// CMD: RQ
|
|
// Answer: RQ, version string (zero-terminated)
|
|
strcpy((char*)(cmdbuf + 1), g_version);
|
|
cmdbuf_len = 1 + strlen(g_version) + 1;
|
|
break;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
printf("Pending data %d\n", cmdbuf_len);
|
|
for (i=0; i<cmdbuf_len; i++) {
|
|
printf("0x%02x ", cmdbuf[i]);
|
|
}
|
|
printf("\r\n");
|
|
#endif
|
|
|
|
state = STATE_COMMAND_DONE;
|
|
}
|
|
|
|
void hiddata_doTask(void)
|
|
{
|
|
switch (state)
|
|
{
|
|
default:
|
|
state = STATE_IDLE;
|
|
case STATE_IDLE:
|
|
break;
|
|
|
|
case STATE_NEW_COMMAND:
|
|
hiddata_processCommandBuffer();
|
|
break;
|
|
|
|
case STATE_COMMAND_DONE:
|
|
break;
|
|
}
|
|
}
|