From 5d9802388c32934a4201fa29ccaf120d2faab8a7 Mon Sep 17 00:00:00 2001
From: NIIBE Yutaka <gniibe@fsij.org>
Date: Thu, 6 Jul 2017 15:52:46 +0900
Subject: Fix USB driver on GNU/Linux.
---
mcu/usb-usbip.c | 28 +++++++++++++---------------
1 file changed, 13 insertions(+), 15 deletions(-)
(limited to 'mcu')
diff --git a/mcu/usb-usbip.c b/mcu/usb-usbip.c
index c6fac0a..47882ec 100644
--- a/mcu/usb-usbip.c
+++ b/mcu/usb-usbip.c
@@ -483,7 +483,7 @@ usbip_finish_urb (struct urb *urb, int r)
static int
-hc_handle_data_urb (struct usb_control *usbc_p)
+hc_handle_data_urb (struct usb_control *usbc_p)
{
int r;
uint16_t count;
@@ -505,7 +505,7 @@ hc_handle_data_urb (struct usb_control *usbc_p)
urb->data_p += count;
urb->remain -= count;
- if (count < 64)
+ if (urb->remain == 0 || count < 64)
{
size_t len = urb->len - urb->remain;
@@ -532,11 +532,11 @@ hc_handle_data_urb (struct usb_control *usbc_p)
urb->remain -= r;
urb->data_p += r;
- if (r < 64)
+ if (urb->remain == 0 || r < 64)
{
size_t len = urb->len - urb->remain;
- fprintf (stderr, "<-data: %lu\n", len);
+ fprintf (stderr, "<-data: %lu %d\n", len, r);
// successfully finished
if (len)
{
@@ -1257,7 +1257,7 @@ control_read_data_transaction (char *buf, uint16_t count)
if (usbc_ep0.state == USB_STATE_READY)
{
if (usbc_ep0.len > count)
- fprintf (stderr, "*** length %d\n", usbc_ep0.len);
+ fprintf (stderr, "***c read: length %d > %d\n", usbc_ep0.len, count);
else
count = usbc_ep0.len;
@@ -1339,16 +1339,14 @@ read_data_transaction (struct usb_control *usbc_p,
int ep_num, char *buf, uint16_t count)
{
if (usbc_p->len > count)
- {
- fprintf (stderr, "*** length %d\n", usbc_p->len);
- usbc_p->state = USB_STATE_STALL;
- return -EPIPE;
- }
+ fprintf (stderr, "*** length %d > %d\n", usbc_p->len, count);
+ else
+ count = usbc_p->len;
usbc_p->state = USB_STATE_NAK;
- memcpy (buf, usbc_p->buf, usbc_p->len);
+ memcpy (buf, usbc_p->buf, count);
notify_device (USB_INTR_DATA_TRANSFER, ep_num, USBIP_DIR_IN);
- return usbc_p->len;
+ return count;
}
void chx_handle_intr (uint32_t irq_num);
@@ -2135,14 +2133,14 @@ usb_lld_setup_endp (struct usb_dev *dev, int ep_num, int rx_en, int tx_en)
void
usb_lld_stall_tx (int ep_num)
{
- printf ("stall tx %d", ep_num);
+ printf ("stall tx %d\n", ep_num);
usbc_ep_in[ep_num].state = USB_STATE_STALL;
}
void
usb_lld_stall_rx (int ep_num)
{
- printf ("stall rx %d", ep_num);
+ printf ("stall rx %d\n", ep_num);
usbc_ep_out[ep_num].state = USB_STATE_STALL;
}
@@ -2175,5 +2173,5 @@ usb_lld_tx_enable_buf (int ep_num, const void *buf, size_t len)
usbc_p->len = len;
write (usbc_p->eventfd, &l, sizeof (l));
pthread_mutex_unlock (&usbc_p->mutex);
- printf ("usb_lld_tx_enable_buf: %d\n", ep_num);
+ printf ("usb_lld_tx_enable_buf: %d %ld\n", ep_num, len);
}
--
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