// #define DEBUG 1
// #define VERBOSE
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <asm/unaligned.h>
#include <linux/usb_ch9.h>
-#include <linux/usb_cdc.h>
+#include <linux/usb/cdc.h>
#include <linux/usb_gadget.h>
#include <linux/random.h>
/* CDC and RNDIS support the same host-chosen outgoing packet filters. */
#define DEFAULT_FILTER (USB_CDC_PACKET_TYPE_BROADCAST \
- |USB_CDC_PACKET_TYPE_ALL_MULTICAST \
- |USB_CDC_PACKET_TYPE_PROMISCUOUS \
- |USB_CDC_PACKET_TYPE_DIRECTED)
+ |USB_CDC_PACKET_TYPE_ALL_MULTICAST \
+ |USB_CDC_PACKET_TYPE_PROMISCUOUS \
+ |USB_CDC_PACKET_TYPE_DIRECTED)
/*-------------------------------------------------------------------------*/
struct usb_ep *in_ep, *out_ep, *status_ep;
const struct usb_endpoint_descriptor
*in, *out, *status;
+
+ spinlock_t req_lock;
struct list_head tx_reqs, rx_reqs;
struct net_device *net;
#define DEV_CONFIG_CDC
#endif
-#ifdef CONFIG_USB_GADGET_MUSBHDRC
+#ifdef CONFIG_USB_GADGET_MUSB_HDRC
#define DEV_CONFIG_CDC
#endif
#define DEFAULT_QLEN 2 /* double buffering by default */
/* peak bulk transfer bits-per-second */
-#define HS_BPS (13 * 512 * 8 * 1000 * 8)
+#define HS_BPS (13 * 512 * 8 * 1000 * 8)
#define FS_BPS (19 * 64 * 1 * 1000 * 8)
#ifdef CONFIG_USB_GADGET_DUALSPEED
};
#ifdef CONFIG_USB_ETH_RNDIS
-static struct usb_config_descriptor
+static struct usb_config_descriptor
rndis_config = {
.bLength = sizeof rndis_config,
.bDescriptorType = USB_DT_CONFIG,
rndis_control_intf = {
.bLength = sizeof rndis_control_intf,
.bDescriptorType = USB_DT_INTERFACE,
-
+
.bInterfaceNumber = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_COMM,
#ifdef CONFIG_USB_ETH_RNDIS
static const struct usb_cdc_call_mgmt_descriptor call_mgmt_descriptor = {
- .bLength = sizeof call_mgmt_descriptor,
- .bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = USB_CDC_CALL_MANAGEMENT_TYPE,
+ .bLength = sizeof call_mgmt_descriptor,
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubType = USB_CDC_CALL_MANAGEMENT_TYPE,
- .bmCapabilities = 0x00,
- .bDataInterface = 0x01,
+ .bmCapabilities = 0x00,
+ .bDataInterface = 0x01,
};
static const struct usb_cdc_acm_descriptor acm_descriptor = {
- .bLength = sizeof acm_descriptor,
- .bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = USB_CDC_ACM_TYPE,
+ .bLength = sizeof acm_descriptor,
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubType = USB_CDC_ACM_TYPE,
- .bmCapabilities = 0x00,
+ .bmCapabilities = 0x00,
};
#endif
* RNDIS requires the status endpoint, since it uses that encapsulation
* mechanism for its funky RPC scheme.
*/
-
+
#define LOG2_STATUS_INTERVAL_MSEC 5 /* 1 << 5 == 32 msec */
#define STATUS_BYTECOUNT 16 /* 8 byte header + data */
result = usb_ep_enable (dev->status_ep, dev->status);
if (result != 0) {
- DEBUG (dev, "enable %s --> %d\n",
+ DEBUG (dev, "enable %s --> %d\n",
dev->status_ep->name, result);
goto done;
}
if (!cdc_active(dev)) {
result = usb_ep_enable (dev->in_ep, dev->in);
if (result != 0) {
- DEBUG(dev, "enable %s --> %d\n",
+ DEBUG(dev, "enable %s --> %d\n",
dev->in_ep->name, result);
goto done;
}
result = usb_ep_enable (dev->out_ep, dev->out);
if (result != 0) {
- DEBUG (dev, "enable %s --> %d\n",
- dev->in_ep->name, result);
+ DEBUG (dev, "enable %s --> %d\n",
+ dev->out_ep->name, result);
goto done;
}
}
*/
if (dev->in) {
usb_ep_disable (dev->in_ep);
+ spin_lock(&dev->req_lock);
while (likely (!list_empty (&dev->tx_reqs))) {
req = container_of (dev->tx_reqs.next,
struct usb_request, list);
list_del (&req->list);
+
+ spin_unlock(&dev->req_lock);
usb_ep_free_request (dev->in_ep, req);
+ spin_lock(&dev->req_lock);
}
+ spin_unlock(&dev->req_lock);
}
if (dev->out) {
usb_ep_disable (dev->out_ep);
+ spin_lock(&dev->req_lock);
while (likely (!list_empty (&dev->rx_reqs))) {
req = container_of (dev->rx_reqs.next,
struct usb_request, list);
list_del (&req->list);
+
+ spin_unlock(&dev->req_lock);
usb_ep_free_request (dev->out_ep, req);
+ spin_lock(&dev->req_lock);
}
+ spin_unlock(&dev->req_lock);
}
if (dev->status) {
#ifdef CONFIG_USB_GADGET_DUALSPEED
case USB_SPEED_HIGH: speed = "high"; break;
#endif
- default: speed = "?"; break;
+ default: speed = "?"; break;
}
dev->config = number;
struct usb_request *req = dev->stat_req;
struct usb_cdc_notification *event;
int value;
-
+
DEBUG (dev, "%s, flush old status first\n", __FUNCTION__);
/* flush old status
{
struct eth_dev *dev = ep->driver_data;
int status;
-
+
/* received RNDIS command from USB_CDC_SEND_ENCAPSULATED_COMMAND */
spin_lock(&dev->lock);
status = rndis_msg_parser (dev->rndis_config, (u8 *) req->buf);
#endif /* DEV_CONFIG_CDC */
-#ifdef CONFIG_USB_ETH_RNDIS
+#ifdef CONFIG_USB_ETH_RNDIS
/* RNDIS uses the CDC command encapsulation mechanism to implement
* an RPC scheme, with much getting/setting of attributes by OID.
*/
req->complete = rndis_command_complete;
/* later, rndis_control_ack () sends a notification */
break;
-
+
case USB_CDC_GET_ENCAPSULATED_RESPONSE:
if ((USB_DIR_IN|USB_TYPE_CLASS|USB_RECIP_INTERFACE)
== ctrl->bRequestType
DEBUG (dev, "no rx skb\n");
goto enomem;
}
-
+
/* Some platforms perform better when IP packets are aligned,
* but on at least one, checksumming fails otherwise. Note:
* RNDIS headers involve variable numbers of LE32 values.
if (retval) {
DEBUG (dev, "rx submit --> %d\n", retval);
dev_kfree_skb_any (skb);
- spin_lock (&dev->lock);
+ spin_lock(&dev->req_lock);
list_add (&req->list, &dev->rx_reqs);
- spin_unlock (&dev->lock);
+ spin_unlock(&dev->req_lock);
}
return retval;
}
case -EOVERFLOW:
dev->stats.rx_over_errors++;
// FALLTHROUGH
-
+
default:
dev->stats.rx_errors++;
DEBUG (dev, "rx status %d\n", status);
dev_kfree_skb_any (skb);
if (!netif_running (dev->net)) {
clean:
- /* nobody reading rx_reqs, so no dev->lock */
+ spin_lock(&dev->req_lock);
list_add (&req->list, &dev->rx_reqs);
+ spin_unlock(&dev->req_lock);
req = NULL;
}
if (req)
{
int status;
+ spin_lock(&dev->req_lock);
status = prealloc (&dev->tx_reqs, dev->in_ep, n, gfp_flags);
if (status < 0)
goto fail;
status = prealloc (&dev->rx_reqs, dev->out_ep, n, gfp_flags);
if (status < 0)
goto fail;
- return 0;
+ goto done;
fail:
DEBUG (dev, "can't alloc requests\n");
+done:
+ spin_unlock(&dev->req_lock);
return status;
}
unsigned long flags;
/* fill unused rxq slots with some skb */
- spin_lock_irqsave (&dev->lock, flags);
+ spin_lock_irqsave(&dev->req_lock, flags);
while (!list_empty (&dev->rx_reqs)) {
req = container_of (dev->rx_reqs.next,
struct usb_request, list);
list_del_init (&req->list);
- spin_unlock_irqrestore (&dev->lock, flags);
+ spin_unlock_irqrestore(&dev->req_lock, flags);
if (rx_submit (dev, req, gfp_flags) < 0) {
defer_kevent (dev, WORK_RX_MEMORY);
return;
}
- spin_lock_irqsave (&dev->lock, flags);
+ spin_lock_irqsave(&dev->req_lock, flags);
}
- spin_unlock_irqrestore (&dev->lock, flags);
+ spin_unlock_irqrestore(&dev->req_lock, flags);
}
static void eth_work (void *_dev)
}
dev->stats.tx_packets++;
- spin_lock (&dev->lock);
+ spin_lock(&dev->req_lock);
list_add (&req->list, &dev->tx_reqs);
- spin_unlock (&dev->lock);
+ spin_unlock(&dev->req_lock);
dev_kfree_skb_any (skb);
atomic_dec (&dev->tx_qlen);
/* ignores USB_CDC_PACKET_TYPE_DIRECTED */
}
- spin_lock_irqsave (&dev->lock, flags);
+ spin_lock_irqsave(&dev->req_lock, flags);
req = container_of (dev->tx_reqs.next, struct usb_request, list);
list_del (&req->list);
if (list_empty (&dev->tx_reqs))
netif_stop_queue (net);
- spin_unlock_irqrestore (&dev->lock, flags);
+ spin_unlock_irqrestore(&dev->req_lock, flags);
/* no buffer copies needed, unless the network stack did it
* or the hardware can't use skb buffers.
sizeof (struct rndis_packet_msg_type));
if (!skb_rndis)
goto drop;
-
+
dev_kfree_skb_any (skb);
skb = skb_rndis;
rndis_add_hdr (skb);
drop:
dev->stats.tx_dropped++;
dev_kfree_skb_any (skb);
- spin_lock_irqsave (&dev->lock, flags);
+ spin_lock_irqsave(&dev->req_lock, flags);
if (list_empty (&dev->tx_reqs))
netif_start_queue (net);
list_add (&req->list, &dev->tx_reqs);
- spin_unlock_irqrestore (&dev->lock, flags);
+ spin_unlock_irqrestore(&dev->req_lock, flags);
}
return 0;
}
struct eth_dev *dev = netdev_priv(net);
u32 length;
struct usb_request *resp = dev->stat_req;
-
+
/* in case RNDIS calls this after disconnect */
if (!dev->status) {
DEBUG (dev, "status ENODEV\n");
resp->length = 8;
resp->complete = rndis_control_ack_complete;
resp->context = dev;
-
+
*((__le32 *) resp->buf) = __constant_cpu_to_le32 (1);
*((__le32 *) resp->buf + 1) = __constant_cpu_to_le32 (0);
-
+
length = usb_ep_queue (dev->status_ep, resp, GFP_ATOMIC);
if (length < 0) {
resp->status = 0;
rndis_control_ack_complete (dev->status_ep, resp);
}
-
+
return 0;
}
/* fill the rx queue */
rx_fill (dev, gfp_flags);
- /* and open the tx floodgates */
+ /* and open the tx floodgates */
atomic_set (&dev->tx_qlen, 0);
netif_wake_queue (dev->net);
if (rndis_active(dev)) {
netif_stop_queue (net);
DEBUG (dev, "stop stats: rx/tx %ld/%ld, errs %ld/%ld\n",
- dev->stats.rx_packets, dev->stats.tx_packets,
+ dev->stats.rx_packets, dev->stats.tx_packets,
dev->stats.rx_errors, dev->stats.tx_errors
);
usb_ep_enable (dev->status_ep, dev->status);
}
}
-
+
if (rndis_active(dev)) {
rndis_set_param_medium (dev->rndis_config,
NDIS_MEDIUM_802_3, 0);
}
-static void __exit
+static void /* __init_or_exit */
eth_unbind (struct usb_gadget *gadget)
{
struct eth_dev *dev = get_gadget_data (gadget);
set_gadget_data (gadget, NULL);
}
-static u8 __init nibble (unsigned char c)
+static u8 __devinit nibble (unsigned char c)
{
if (likely (isdigit (c)))
return c - '0';
return 0;
}
-static int __init get_ether_addr(const char *str, u8 *dev_addr)
+static int __devinit get_ether_addr(const char *str, u8 *dev_addr)
{
if (str) {
unsigned i;
return 1;
}
-static int __init
+static int __devinit
eth_bind (struct usb_gadget *gadget)
{
struct eth_dev *dev;
return -ENODEV;
}
in_ep->driver_data = in_ep; /* claim */
-
+
out_ep = usb_ep_autoconfig (gadget, &fs_sink_desc);
if (!out_ep)
goto autoconf_fail;
#endif
}
- net = alloc_etherdev (sizeof *dev);
- if (!net)
+ net = alloc_etherdev (sizeof *dev);
+ if (!net)
return status;
dev = netdev_priv(net);
spin_lock_init (&dev->lock);
+ spin_lock_init (&dev->req_lock);
INIT_WORK (&dev->work, eth_work, dev);
INIT_LIST_HEAD (&dev->tx_reqs);
INIT_LIST_HEAD (&dev->rx_reqs);
dev->gadget = gadget;
set_gadget_data (gadget, dev);
gadget->ep0->driver_data = dev;
-
+
/* two kinds of host-initiated state changes:
* - iff DATA transfer is active, carrier is "on"
* - tx queueing enabled if open *and* carrier is "on"
netif_stop_queue (dev->net);
netif_carrier_off (dev->net);
- SET_NETDEV_DEV (dev->net, &gadget->dev);
- status = register_netdev (dev->net);
+ SET_NETDEV_DEV (dev->net, &gadget->dev);
+ status = register_netdev (dev->net);
if (status < 0)
goto fail1;
u32 vendorID = 0;
/* FIXME RNDIS vendor id == "vendor NIC code" == ? */
-
+
dev->rndis_config = rndis_register (rndis_control_ack);
if (dev->rndis_config < 0) {
fail0:
status = -ENODEV;
goto fail;
}
-
+
/* these set up a lot of the OIDs that RNDIS needs */
rndis_set_host_mac (dev->rndis_config, dev->host_mac);
if (rndis_set_param_dev (dev->rndis_config, dev->net,
.function = (char *) driver_desc,
.bind = eth_bind,
- .unbind = __exit_p(eth_unbind),
+ .unbind = eth_unbind,
.setup = eth_setup,
.disconnect = eth_disconnect,
.suspend = eth_suspend,
.resume = eth_resume,
- .driver = {
+ .driver = {
.name = (char *) shortname,
.owner = THIS_MODULE,
},
git://git.onelab.eu / linux-2.6.git / blobdiff