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authorGerd Hoffmann <kraxel@redhat.com>2011-08-31 16:09:27 +0200
committerGerd Hoffmann <kraxel@redhat.com>2012-01-17 09:44:50 +0100
commitf003397ce95441cd8de01a728affb3de7accd1dd (patch)
treea5ec4b86fffd6c90770ff1fe0d88e435ebe7298a /hw
parent5b6780d045720848c57a7cf461b49befcd24c691 (diff)
usb: add max_packet_size to USBEndpoint
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/usb-desc.c2
-rw-r--r--hw/usb.c37
-rw-r--r--hw/usb.h4
3 files changed, 39 insertions, 4 deletions
diff --git a/hw/usb-desc.c b/hw/usb-desc.c
index 0768334b8c..b3eb97bc6b 100644
--- a/hw/usb-desc.c
+++ b/hw/usb-desc.c
@@ -248,6 +248,8 @@ static void usb_desc_ep_init(USBDevice *dev)
ep = iface->eps[e].bEndpointAddress & 0x0f;
usb_ep_set_type(dev, pid, ep, iface->eps[e].bmAttributes & 0x03);
usb_ep_set_ifnum(dev, pid, ep, iface->bInterfaceNumber);
+ usb_ep_set_max_packet_size(dev, pid, ep,
+ iface->eps[e].wMaxPacketSize);
}
}
}
diff --git a/hw/usb.c b/hw/usb.c
index f07cb9d58c..0f163b45ff 100644
--- a/hw/usb.c
+++ b/hw/usb.c
@@ -449,8 +449,9 @@ void usb_ep_dump(USBDevice *dev)
fprintf(stderr, " Interface %d, alternative %d\n",
ifnum, dev->altsetting[ifnum]);
}
- fprintf(stderr, " Endpoint %d, IN, %s\n", ep,
- tname[dev->ep_in[ep].type]);
+ fprintf(stderr, " Endpoint %d, IN, %s, %d max\n", ep,
+ tname[dev->ep_in[ep].type],
+ dev->ep_in[ep].max_packet_size);
}
if (dev->ep_out[ep].type != USB_ENDPOINT_XFER_INVALID &&
dev->ep_out[ep].ifnum == ifnum) {
@@ -459,8 +460,9 @@ void usb_ep_dump(USBDevice *dev)
fprintf(stderr, " Interface %d, alternative %d\n",
ifnum, dev->altsetting[ifnum]);
}
- fprintf(stderr, " Endpoint %d, OUT, %s\n", ep,
- tname[dev->ep_out[ep].type]);
+ fprintf(stderr, " Endpoint %d, OUT, %s, %d max\n", ep,
+ tname[dev->ep_out[ep].type],
+ dev->ep_out[ep].max_packet_size);
}
}
}
@@ -498,3 +500,30 @@ void usb_ep_set_ifnum(USBDevice *dev, int pid, int ep, uint8_t ifnum)
struct USBEndpoint *uep = usb_ep_get(dev, pid, ep);
uep->ifnum = ifnum;
}
+
+void usb_ep_set_max_packet_size(USBDevice *dev, int pid, int ep,
+ uint16_t raw)
+{
+ struct USBEndpoint *uep = usb_ep_get(dev, pid, ep);
+ int size, microframes;
+
+ size = raw & 0x7ff;
+ switch ((raw >> 11) & 3) {
+ case 1:
+ microframes = 2;
+ break;
+ case 2:
+ microframes = 3;
+ break;
+ default:
+ microframes = 1;
+ break;
+ }
+ uep->max_packet_size = size * microframes;
+}
+
+int usb_ep_get_max_packet_size(USBDevice *dev, int pid, int ep)
+{
+ struct USBEndpoint *uep = usb_ep_get(dev, pid, ep);
+ return uep->max_packet_size;
+}
diff --git a/hw/usb.h b/hw/usb.h
index c35ff7437b..5ea984cfdd 100644
--- a/hw/usb.h
+++ b/hw/usb.h
@@ -176,6 +176,7 @@ struct USBDescString {
struct USBEndpoint {
uint8_t type;
uint8_t ifnum;
+ int max_packet_size;
};
/* definition of a USB device */
@@ -339,6 +340,9 @@ uint8_t usb_ep_get_type(USBDevice *dev, int pid, int ep);
uint8_t usb_ep_get_ifnum(USBDevice *dev, int pid, int ep);
void usb_ep_set_type(USBDevice *dev, int pid, int ep, uint8_t type);
void usb_ep_set_ifnum(USBDevice *dev, int pid, int ep, uint8_t ifnum);
+void usb_ep_set_max_packet_size(USBDevice *dev, int pid, int ep,
+ uint16_t raw);
+int usb_ep_get_max_packet_size(USBDevice *dev, int pid, int ep);
void usb_attach(USBPort *port);
void usb_detach(USBPort *port);