static void cb_download(struct usb_ep *ep, struct usb_request *req)
{
char *cmd = req->buf;
char response[RESPONSE_LEN];
strsep(&cmd, ":");
/*HACK: Zero terminate the command string*/
strlcpy(cmd, cmd, 9);
download_size = simple_strtoul(cmd, NULL, 16);
download_bytes = 0;
printf("Starting download of %d bytes\n",
download_size);
if (0 == download_size) {
sprintf(response, "FAILdata invalid size");
} else if (download_size >
fb_cfg.transfer_buffer_size) {
download_size = 0;
sprintf(response, "FAILdata too large");
} else {
sprintf(response, "DATA%08x", download_size);
req->complete = rx_handler_dl_image;
req->length = rx_bytes_expected();
if (req->length < ep->maxpacket)
req->length = ep->maxpacket;
}
fastboot_tx_write_str(response);
}
static void rx_handler_dl_image(struct usb_ep *ep, struct usb_request *req)
{
char response[RESPONSE_LEN];
unsigned int transfer_size = download_size - download_bytes;
const unsigned char *buffer = req->buf;
unsigned int buffer_size = req->actual;
if (req->status != 0) {
printf("Bad status: %d\n", req->status);
return;
}
if (buffer_size < transfer_size)
transfer_size = buffer_size;
memcpy(fb_cfg.transfer_buffer + download_bytes,
buffer, transfer_size);
download_bytes += transfer_size;
/* Check if transfer is done */
if (download_bytes >= download_size) {
/*
* Reset global transfer variable, keep download_bytes because
* it will be used in the next possible flashing command
*/
download_size = 0;
req->complete = rx_handler_command;
req->length = EP_BUFFER_SIZE;
sprintf(response, "OKAY");
fastboot_tx_write_str(response);
printf("\ndownloading of %d bytes finished\n",
download_bytes);
} else {
req->length = rx_bytes_expected();
if (req->length < ep->maxpacket)
req->length = ep->maxpacket;
}
/*if (download_bytes && !(download_bytes % BYTES_PER_DOT)) {
printf(".");
if (!(download_bytes % (74 * BYTES_PER_DOT)))
printf("\n");
}*/
req->actual = 0;
usb_ep_queue(ep, req, 0);
}
static void cb_write_lba(struct usb_ep *ep, struct usb_request *req)
{
ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
sizeof(struct fsg_bulk_cb_wrap));
struct f_rockusb *f_rkusb = get_rkusb();
int sector_count;
memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
sector_count = (int)get_unaligned_be16(&cbw->CDB[7]);
f_rkusb->lba = get_unaligned_be32(&cbw->CDB[2]);
f_rkusb->dl_size = sector_count * 512;
f_rkusb->dl_bytes = 0;
f_rkusb->tag = cbw->tag;
debug("require write %x bytes, %x sectors to lba %x\n",
f_rkusb->dl_size, sector_count, f_rkusb->lba);
if (f_rkusb->dl_size == 0) {
rockusb_tx_write_csw(cbw->tag, cbw->data_transfer_length,
CSW_FAIL, USB_BULK_CS_WRAP_LEN);
} else {
req->complete = rx_handler_dl_image;
req->length = rx_bytes_expected(ep);
}
}
/* usb_request complete call back to handle down load image */
static void rx_handler_dl_image(struct usb_ep *ep, struct usb_request *req)
{
struct f_rockusb *f_rkusb = get_rkusb();
unsigned int transfer_size = 0;
const unsigned char *buffer = req->buf;
unsigned int buffer_size = req->actual;
transfer_size = f_rkusb->dl_size - f_rkusb->dl_bytes;
if (!f_rkusb->desc) {
char *type = f_rkusb->dev_type;
int index = f_rkusb->dev_index;
f_rkusb->desc = blk_get_dev(type, index);
if (!f_rkusb->desc ||
f_rkusb->desc->type == DEV_TYPE_UNKNOWN) {
puts("invalid mmc device\n");
rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL,
USB_BULK_CS_WRAP_LEN);
return;
}
}
if (req->status != 0) {
printf("Bad status: %d\n", req->status);
rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL,
USB_BULK_CS_WRAP_LEN);
return;
}
if (buffer_size < transfer_size)
transfer_size = buffer_size;
memcpy((void *)f_rkusb->buf, buffer, transfer_size);
f_rkusb->dl_bytes += transfer_size;
int blks = 0, blkcnt = transfer_size / 512;
debug("dl %x bytes, %x blks, write lba %x, dl_size:%x, dl_bytes:%x, ",
transfer_size, blkcnt, f_rkusb->lba, f_rkusb->dl_size,
f_rkusb->dl_bytes);
blks = blk_dwrite(f_rkusb->desc, f_rkusb->lba, blkcnt, f_rkusb->buf);
if (blks != blkcnt) {
printf("failed writing to device %s: %d\n", f_rkusb->dev_type,
f_rkusb->dev_index);
rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL,
USB_BULK_CS_WRAP_LEN);
return;
}
f_rkusb->lba += blkcnt;
/* Check if transfer is done */
if (f_rkusb->dl_bytes >= f_rkusb->dl_size) {
req->complete = rx_handler_command;
req->length = EP_BUFFER_SIZE;
f_rkusb->buf = f_rkusb->buf_head;
printf("transfer 0x%x bytes done\n", f_rkusb->dl_size);
f_rkusb->dl_size = 0;
rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_GOOD,
USB_BULK_CS_WRAP_LEN);
} else {
req->length = rx_bytes_expected(ep);
if (f_rkusb->buf == f_rkusb->buf_head)
f_rkusb->buf = f_rkusb->buf_head + EP_BUFFER_SIZE;
else
f_rkusb->buf = f_rkusb->buf_head;
debug("remain %x bytes, %x sectors\n", req->length,
req->length / 512);
}
req->actual = 0;
usb_ep_queue(ep, req, 0);
}