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Implement RQ_GCN64_BLOCK_IO

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This commit is contained in:
Raphael Assenat 2016-12-03 14:15:22 -05:00
parent 6d8d2d27bf
commit 083c915c34
1 changed files with 50 additions and 2 deletions
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52
hiddata.c
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@ -25,8 +25,8 @@
#include "version.h"
#include "main.h"
// dataHidReport is 40 bytes.
#define CMDBUF_SIZE 41
// dataHidReport is 63 bytes. Endpoint is 64 bytes.
#define CMDBUF_SIZE 64
#define STATE_IDLE 0
#define STATE_NEW_COMMAND 1 // New command in buffer
@ -74,6 +74,51 @@ uint8_t hiddata_set_report(void *ctx, const struct usb_request *rq, const uint8_
return 0;
}
static uint8_t processBlockIO(void)
{
uint8_t requestCopy[CMDBUF_SIZE];
int i, rx_offset = 0, rx;
uint8_t chn, n_tx, n_rx;
memcpy(requestCopy, cmdbuf, CMDBUF_SIZE);
memset(cmdbuf + 1, 0xff, CMDBUF_SIZE-1);
for (rx_offset = 1, i=1; i<CMDBUF_SIZE; ) {
if (i + 3 >= CMDBUF_SIZE)
break;
chn = requestCopy[i];
if (chn == 0xff)
break;
i++;
n_tx = requestCopy[i];
i++;
n_rx = requestCopy[i];
i++;
if (n_tx == 0)
continue;
if (rx_offset + 1 + n_rx >= CMDBUF_SIZE) {
break;
}
rx = gcn64_transaction(chn, requestCopy + i, n_tx, cmdbuf + rx_offset + 1, n_rx);
cmdbuf[rx_offset] = n_rx;
if (rx <= 0) {
// timeout
cmdbuf[rx_offset] |= 0x80;
} else if (rx < n_rx) {
// less than expected
cmdbuf[rx_offset] |= 0x40;
}
rx_offset += n_rx + 1;
i += n_tx;
}
return 63;
}
static void hiddata_processCommandBuffer(struct hiddata_ops *ops)
{
unsigned char channel;
@ -147,6 +192,9 @@ static void hiddata_processCommandBuffer(struct hiddata_ops *ops)
}
cmdbuf_len = 3;
break;
case RQ_GCN64_BLOCK_IO:
cmdbuf_len = processBlockIO();
break;
}
#ifdef DEBUG