/*
* Ethernet gadget driver -- with CDC and non-CDC options
+ * Builds on hardware support for a full duplex link.
*
* CDC Ethernet is the standard USB solution for sending Ethernet frames
* using USB. Real hardware tends to use the same framing protocol but look
*/
#define DRIVER_DESC "Ethernet Gadget"
-#define DRIVER_VERSION "St Patrick's Day 2004"
+#define DRIVER_VERSION "Equinox 2004"
static const char shortname [] = "ether";
static const char driver_desc [] = DRIVER_DESC;
#define DEV_CONFIG_CDC
#endif
+#ifdef CONFIG_USB_GADGET_LH7A40X
+#define DEV_CONFIG_CDC
+#endif
+
#ifdef CONFIG_USB_GADGET_MQ11XX
#define DEV_CONFIG_CDC
#endif
#define DEV_CONFIG_CDC
#endif
+#ifdef CONFIG_USB_GADGET_N9604
+#define DEV_CONFIG_CDC
+#endif
+
+#ifdef CONFIG_USB_GADGET_PXA27X
+#define DEV_CONFIG_CDC
+#endif
+
/* For CDC-incapable hardware, choose the simple cdc subset.
* Anything that talks bulk (without notable bugs) can do this.
*/
-#ifdef CONFIG_USB_GADGET_PXA
+#ifdef CONFIG_USB_GADGET_PXA2XX
#define DEV_CONFIG_SUBSET
#endif
*
* NOTE: Controllers like superh_udc should probably be able to use
* an RNDIS-only configuration.
+ *
+ * FIXME define some higher-powered configurations to make it easier
+ * to recharge batteries ...
*/
#define DEV_CONFIG_VALUE 1 /* cdc or subset */
.bNumConfigurations = 1,
};
+static struct usb_otg_descriptor
+otg_descriptor = {
+ .bLength = sizeof otg_descriptor,
+ .bDescriptorType = USB_DT_OTG,
+
+ .bmAttributes = USB_OTG_SRP,
+};
+
static struct usb_config_descriptor
eth_config = {
.bLength = sizeof eth_config,
.bConfigurationValue = DEV_CONFIG_VALUE,
.iConfiguration = STRING_CDC,
.bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
- .bMaxPower = 1,
+ .bMaxPower = 50,
};
#ifdef CONFIG_USB_ETH_RNDIS
-static const struct usb_config_descriptor
+static struct usb_config_descriptor
rndis_config = {
.bLength = sizeof rndis_config,
.bDescriptorType = USB_DT_CONFIG,
.bConfigurationValue = DEV_RNDIS_CONFIG_VALUE,
.iConfiguration = STRING_RNDIS,
.bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
- .bMaxPower = 1,
+ .bMaxPower = 50,
};
#endif
.bmAttributes = USB_ENDPOINT_XFER_BULK,
};
-static const struct usb_descriptor_header *fs_eth_function [10] = {
+static const struct usb_descriptor_header *fs_eth_function [11] = {
+ (struct usb_descriptor_header *) &otg_descriptor,
#ifdef DEV_CONFIG_CDC
/* "cdc" mode descriptors */
(struct usb_descriptor_header *) &control_intf,
(struct usb_descriptor_header *) &data_intf,
(struct usb_descriptor_header *) &fs_source_desc,
(struct usb_descriptor_header *) &fs_sink_desc,
- 0,
+ NULL,
#endif /* DEV_CONFIG_CDC */
};
static inline void __init fs_subset_descriptors(void)
{
#ifdef DEV_CONFIG_SUBSET
- fs_eth_function[0] = (struct usb_descriptor_header *) &subset_data_intf;
- fs_eth_function[1] = (struct usb_descriptor_header *) &fs_source_desc;
- fs_eth_function[2] = (struct usb_descriptor_header *) &fs_sink_desc;
- fs_eth_function[3] = 0;
+ fs_eth_function[1] = (struct usb_descriptor_header *) &subset_data_intf;
+ fs_eth_function[2] = (struct usb_descriptor_header *) &fs_source_desc;
+ fs_eth_function[3] = (struct usb_descriptor_header *) &fs_sink_desc;
+ fs_eth_function[4] = NULL;
#else
- fs_eth_function[0] = 0;
+ fs_eth_function[1] = NULL;
#endif
}
#ifdef CONFIG_USB_ETH_RNDIS
static const struct usb_descriptor_header *fs_rndis_function [] = {
+ (struct usb_descriptor_header *) &otg_descriptor,
/* control interface matches ACM, not Ethernet */
(struct usb_descriptor_header *) &rndis_control_intf,
(struct usb_descriptor_header *) &header_desc,
(struct usb_descriptor_header *) &rndis_data_intf,
(struct usb_descriptor_header *) &fs_source_desc,
(struct usb_descriptor_header *) &fs_sink_desc,
- 0,
+ NULL,
};
#endif
.bNumConfigurations = 1,
};
-static const struct usb_descriptor_header *hs_eth_function [10] = {
+static const struct usb_descriptor_header *hs_eth_function [11] = {
+ (struct usb_descriptor_header *) &otg_descriptor,
#ifdef DEV_CONFIG_CDC
/* "cdc" mode descriptors */
(struct usb_descriptor_header *) &control_intf,
(struct usb_descriptor_header *) &data_intf,
(struct usb_descriptor_header *) &hs_source_desc,
(struct usb_descriptor_header *) &hs_sink_desc,
- 0,
+ NULL,
#endif /* DEV_CONFIG_CDC */
};
static inline void __init hs_subset_descriptors(void)
{
#ifdef DEV_CONFIG_SUBSET
- hs_eth_function[0] = (struct usb_descriptor_header *) &subset_data_intf;
- hs_eth_function[1] = (struct usb_descriptor_header *) &fs_source_desc;
- hs_eth_function[2] = (struct usb_descriptor_header *) &fs_sink_desc;
- hs_eth_function[3] = 0;
+ hs_eth_function[1] = (struct usb_descriptor_header *) &subset_data_intf;
+ hs_eth_function[2] = (struct usb_descriptor_header *) &fs_source_desc;
+ hs_eth_function[3] = (struct usb_descriptor_header *) &fs_sink_desc;
+ hs_eth_function[4] = NULL;
#else
- hs_eth_function[0] = 0;
+ hs_eth_function[1] = NULL;
#endif
}
#ifdef CONFIG_USB_ETH_RNDIS
static const struct usb_descriptor_header *hs_rndis_function [] = {
+ (struct usb_descriptor_header *) &otg_descriptor,
/* control interface matches ACM, not Ethernet */
(struct usb_descriptor_header *) &rndis_control_intf,
(struct usb_descriptor_header *) &header_desc,
(struct usb_descriptor_header *) &rndis_data_intf,
(struct usb_descriptor_header *) &hs_source_desc,
(struct usb_descriptor_header *) &hs_sink_desc,
- 0,
+ NULL,
};
#endif
/* descriptors that are built on-demand */
-static char manufacturer [40];
+static char manufacturer [50];
static char product_desc [40] = DRIVER_DESC;
#ifdef DEV_CONFIG_CDC
static char ethaddr [2 * ETH_ALEN + 1];
#endif
-/* static strings, in iso 8859/1 */
+/* static strings, in UTF-8 */
static struct usb_string strings [] = {
{ STRING_MANUFACTURER, manufacturer, },
{ STRING_PRODUCT, product_desc, },
* complications: class descriptors, and an altsetting.
*/
static int
-config_buf (enum usb_device_speed speed, u8 *buf, u8 type, unsigned index)
+config_buf (enum usb_device_speed speed,
+ u8 *buf, u8 type,
+ unsigned index, int is_otg)
{
- int len;
+ int len;
+ const struct usb_config_descriptor *config;
+ const struct usb_descriptor_header **function;
#ifdef CONFIG_USB_GADGET_DUALSPEED
int hs = (speed == USB_SPEED_HIGH);
if (type == USB_DT_OTHER_SPEED_CONFIG)
hs = !hs;
-#define which_config(t) (hs ? & t ## _config : & t ## _config)
-#define which_fn(t) (hs ? & hs_ ## t ## _function : & fs_ ## t ## _function)
+#define which_fn(t) (hs ? hs_ ## t ## _function : fs_ ## t ## _function)
#else
-#define which_config(t) (& t ## _config)
-#define which_fn(t) (& fs_ ## t ## _function)
+#define which_fn(t) (fs_ ## t ## _function)
#endif
if (index >= device_desc.bNumConfigurations)
/* list the RNDIS config first, to make Microsoft's drivers
* happy. DOCSIS 1.0 needs this too.
*/
- if (device_desc.bNumConfigurations == 2 && index == 0)
- len = usb_gadget_config_buf (which_config (rndis), buf,
- USB_BUFSIZ, (const struct usb_descriptor_header **)
- which_fn (rndis));
- else
+ if (device_desc.bNumConfigurations == 2 && index == 0) {
+ config = &rndis_config;
+ function = which_fn (rndis);
+ } else
#endif
- len = usb_gadget_config_buf (which_config (eth), buf,
- USB_BUFSIZ, (const struct usb_descriptor_header **)
- which_fn (eth));
+ {
+ config = ð_config;
+ function = which_fn (eth);
+ }
+
+ /* for now, don't advertise srp-only devices */
+ if (!is_otg)
+ function++;
+
+ len = usb_gadget_config_buf (config, buf, USB_BUFSIZ, function);
if (len < 0)
return len;
((struct usb_config_descriptor *) buf)->bDescriptorType = type;
if (dev->status_ep)
(void) usb_ep_disable (dev->status_ep);
#endif
- dev->status_ep = 0;
- dev->status = 0;
+ dev->status_ep = NULL;
+ dev->status = NULL;
#if defined(DEV_CONFIG_SUBSET) || defined(CONFIG_USB_ETH_RNDIS)
if (dev->rndis || !dev->cdc) {
if (dev->in_ep)
(void) usb_ep_disable (dev->out_ep);
}
#endif
- dev->in_ep = 0;
- dev->in = 0;
- dev->out_ep = 0;
- dev->out = 0;
+ dev->in_ep = NULL;
+ dev->in = NULL;
+ dev->out_ep = NULL;
+ dev->out = NULL;
} else
/* activate non-CDC configs right away
list_del (&req->list);
usb_ep_free_request (dev->in_ep, req);
}
- dev->in_ep = 0;
+ dev->in_ep = NULL;
}
if (dev->out_ep) {
usb_ep_disable (dev->out_ep);
list_del (&req->list);
usb_ep_free_request (dev->out_ep, req);
}
- dev->out_ep = 0;
+ dev->out_ep = NULL;
}
if (dev->status_ep) {
usb_ep_disable (dev->status_ep);
- dev->status_ep = 0;
+ dev->status_ep = NULL;
}
dev->config = 0;
}
result = -EINVAL;
/* FALL THROUGH */
case 0:
- return result;
+ break;
}
- if (result)
- eth_reset_config (dev);
- else {
+ if (result) {
+ if (number)
+ eth_reset_config (dev);
+ usb_gadget_vbus_draw(dev->gadget,
+ dev->gadget->is_otg ? 8 : 100);
+ } else {
char *speed;
+ unsigned power;
+
+ power = 2 * eth_config.bMaxPower;
+ usb_gadget_vbus_draw(dev->gadget, power);
switch (gadget->speed) {
case USB_SPEED_FULL: speed = "full"; break;
}
dev->config = number;
- INFO (dev, "%s speed config #%d: %s, using %s\n",
- speed, number, driver_desc,
+ INFO (dev, "%s speed config #%d: %d mA, %s, using %s\n",
+ speed, number, power, driver_desc,
dev->rndis
? "RNDIS"
: (dev->cdc
static void rndis_response_complete (struct usb_ep *ep, struct usb_request *req)
{
if (req->status || req->actual != req->length)
- DEBUG (dev, "rndis response complete --> %d, %d/%d\n",
- req->status, req->actual, req->length);
+ DEBUG ((struct eth_dev *) ep->driver_data,
+ "rndis response complete --> %d, %d/%d\n",
+ req->status, req->actual, req->length);
/* done sending after CDC_GET_ENCAPSULATED_RESPONSE */
}
/* descriptors just go into the pre-allocated ep0 buffer,
* while config change events may enable network traffic.
*/
+ req->complete = eth_setup_complete;
switch (ctrl->bRequest) {
case USB_REQ_GET_DESCRIPTOR:
case USB_DT_CONFIG:
value = config_buf (gadget->speed, req->buf,
ctrl->wValue >> 8,
- ctrl->wValue & 0xff);
+ ctrl->wValue & 0xff,
+ gadget->is_otg);
if (value >= 0)
value = min (ctrl->wLength, (u16) value);
break;
case USB_REQ_SET_CONFIGURATION:
if (ctrl->bRequestType != 0)
break;
+ if (gadget->a_hnp_support)
+ DEBUG (dev, "HNP available\n");
+ else if (gadget->a_alt_hnp_support)
+ DEBUG (dev, "HNP needs a different root port\n");
spin_lock (&dev->lock);
value = eth_set_config (dev, ctrl->wValue, GFP_ATOMIC);
spin_unlock (&dev->lock);
/* respond with data transfer before status phase? */
if (value >= 0) {
req->length = value;
+ req->zero = value < ctrl->wLength
+ && (value % gadget->ep0->maxpacket) == 0;
value = usb_ep_queue (gadget->ep0, req, GFP_ATOMIC);
if (value < 0) {
DEBUG (dev, "ep_queue --> %d\n", value);
static int eth_change_mtu (struct net_device *net, int new_mtu)
{
- struct eth_dev *dev = (struct eth_dev *) net->priv;
+ struct eth_dev *dev = netdev_priv(net);
// FIXME if rndis, don't change while link's live
static struct net_device_stats *eth_get_stats (struct net_device *net)
{
- return &((struct eth_dev *) net->priv)->stats;
+ return &((struct eth_dev *)netdev_priv(net))->stats;
}
-static int eth_ethtool_ioctl (struct net_device *net, void __user *useraddr)
+static void eth_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *p)
{
- struct eth_dev *dev = (struct eth_dev *) net->priv;
- u32 cmd;
-
- if (get_user (cmd, (u32 __user *)useraddr))
- return -EFAULT;
- switch (cmd) {
-
- case ETHTOOL_GDRVINFO: { /* get driver info */
- struct ethtool_drvinfo info;
-
- memset (&info, 0, sizeof info);
- info.cmd = ETHTOOL_GDRVINFO;
- strlcpy (info.driver, shortname, sizeof info.driver);
- strlcpy (info.version, DRIVER_VERSION, sizeof info.version);
- strlcpy (info.fw_version, dev->gadget->name,
- sizeof info.fw_version);
- strlcpy (info.bus_info, dev->gadget->dev.bus_id,
- sizeof info.bus_info);
- if (copy_to_user (useraddr, &info, sizeof (info)))
- return -EFAULT;
- return 0;
- }
-
- case ETHTOOL_GLINK: { /* get link status */
- struct ethtool_value edata = { ETHTOOL_GLINK };
-
- edata.data = (dev->gadget->speed != USB_SPEED_UNKNOWN);
- if (copy_to_user (useraddr, &edata, sizeof (edata)))
- return -EFAULT;
- return 0;
- }
-
- }
- /* Note that the ethtool user space code requires EOPNOTSUPP */
- return -EOPNOTSUPP;
+ struct eth_dev *dev = netdev_priv(net);
+ strlcpy(p->driver, shortname, sizeof p->driver);
+ strlcpy(p->version, DRIVER_VERSION, sizeof p->version);
+ strlcpy(p->fw_version, dev->gadget->name, sizeof p->fw_version);
+ strlcpy (p->bus_info, dev->gadget->dev.bus_id, sizeof p->bus_info);
}
-static int eth_ioctl (struct net_device *net, struct ifreq *rq, int cmd)
+static u32 eth_get_link(struct net_device *net)
{
- switch (cmd) {
- case SIOCETHTOOL:
- return eth_ethtool_ioctl(net, rq->ifr_data);
- default:
- return -EOPNOTSUPP;
- }
+ struct eth_dev *dev = netdev_priv(net);
+ return dev->gadget->speed != USB_SPEED_UNKNOWN;
}
+static struct ethtool_ops ops = {
+ .get_drvinfo = eth_get_drvinfo,
+ .get_link = eth_get_link
+};
+
static void defer_kevent (struct eth_dev *dev, int flag)
{
if (test_and_set_bit (flag, &dev->todo))
/* Padding up to RX_EXTRA handles minor disagreements with host.
* Normally we use the USB "terminate on short read" convention;
- * so allow up to (N*maxpacket)-1, since that memory is normally
- * already allocated. Major loss of synch means -EOVERFLOW; any
- * obviously corrupted packets will automatically be discarded.
+ * so allow up to (N*maxpacket), since that memory is normally
+ * already allocated. Some hardware doesn't deal well with short
+ * reads (e.g. DMA must be N*maxpacket), so for now don't trim a
+ * byte off the end (to force hardware errors on overflow).
*
* RNDIS uses internal framing, and explicitly allows senders to
* pad to end-of-packet. That's potentially nice for speed,
size += sizeof (struct rndis_packet_msg_type);
#endif
size -= size % dev->out_ep->maxpacket;
-#ifdef CONFIG_USB_ETH_RNDIS
- if (!dev->rndis)
-#endif
- size--;
if ((skb = alloc_skb (size, gfp_flags)) == 0) {
DEBUG (dev, "no rx skb\n");
* use skb buffers.
*/
status = netif_rx (skb);
- skb = 0;
+ skb = NULL;
break;
/* software-driven interface shutdown */
clean:
/* nobody reading rx_reqs, so no dev->lock */
list_add (&req->list, &dev->rx_reqs);
- req = 0;
+ req = NULL;
}
if (req)
rx_submit (dev, req, GFP_ATOMIC);
static int eth_start_xmit (struct sk_buff *skb, struct net_device *net)
{
- struct eth_dev *dev = (struct eth_dev *) net->priv;
+ struct eth_dev *dev = netdev_priv(net);
int length = skb->len;
int retval;
- struct usb_request *req = 0;
+ struct usb_request *req = NULL;
unsigned long flags;
/* FIXME check dev->cdc_filter to decide whether to send this,
}
}
-static void rndis_control_ack_complete (struct usb_ep *ep, struct usb_request *req)
+static void
+rndis_control_ack_complete (struct usb_ep *ep, struct usb_request *req)
{
if (req->status || req->actual != req->length)
- DEBUG (dev, "rndis control ack complete --> %d, %d/%d\n",
- req->status, req->actual, req->length);
+ DEBUG ((struct eth_dev *) ep->driver_data,
+ "rndis control ack complete --> %d, %d/%d\n",
+ req->status, req->actual, req->length);
usb_ep_free_buffer(ep, req->buf, req->dma, 8);
usb_ep_free_request(ep, req);
static int rndis_control_ack (struct net_device *net)
{
- struct eth_dev *dev = (struct eth_dev *) net->priv;
+ struct eth_dev *dev = netdev_priv(net);
u32 length;
struct usb_request *resp;
static int eth_open (struct net_device *net)
{
- struct eth_dev *dev = (struct eth_dev *) net->priv;
+ struct eth_dev *dev = netdev_priv(net);
DEBUG (dev, "%s\n", __FUNCTION__);
if (netif_carrier_ok (dev->net))
static int eth_stop (struct net_device *net)
{
- struct eth_dev *dev = (struct eth_dev *) net->priv;
+ struct eth_dev *dev = netdev_priv(net);
VDEBUG (dev, "%s\n", __FUNCTION__);
netif_stop_queue (net);
);
/* ensure there are no more active requests */
- if (dev->gadget->speed != USB_SPEED_UNKNOWN) {
+ if (dev->config) {
usb_ep_disable (dev->in_ep);
usb_ep_disable (dev->out_ep);
if (netif_carrier_ok (dev->net)) {
dev->req->buf, dev->req->dma,
USB_BUFSIZ);
usb_ep_free_request (gadget->ep0, dev->req);
- dev->req = 0;
+ dev->req = NULL;
}
unregister_netdev (dev->net);
/* assuming we used keventd, it must quiesce too */
flush_scheduled_work ();
- set_gadget_data (gadget, 0);
+ set_gadget_data (gadget, NULL);
}
static u8 __init nibble (unsigned char c)
device_desc.bcdDevice = __constant_cpu_to_le16 (0x0207);
} else if (gadget_is_omap (gadget)) {
device_desc.bcdDevice = __constant_cpu_to_le16 (0x0208);
+ } else if (gadget_is_lh7a40x(gadget)) {
+ device_desc.bcdDevice = __constant_cpu_to_le16 (0x0209);
+ } else if (gadget_is_n9604(gadget)) {
+ device_desc.bcdDevice = __constant_cpu_to_le16 (0x0210);
+ } else if (gadget_is_pxa27x(gadget)) {
+ device_desc.bcdDevice = __constant_cpu_to_le16 (0x0211);
} else {
/* can't assume CDC works. don't want to default to
* anything less functional on CDC-capable hardware,
EP_OUT_NAME = ep->name;
ep->driver_data = ep; /* claim */
+#if defined(DEV_CONFIG_CDC) || defined(CONFIG_USB_ETH_RNDIS)
/* CDC Ethernet control interface doesn't require a status endpoint.
* Since some hosts expect one, try to allocate one anyway.
*/
"can't run RNDIS on %s\n",
gadget->name);
return -ENODEV;
-#ifdef DEV_CONFIG_CDC
} else if (cdc) {
control_intf.bNumEndpoints = 0;
/* FIXME remove endpoint from descriptor list */
-#endif
}
}
+#endif
/* one config: cdc, else minimal subset */
if (!cdc) {
device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket;
usb_gadget_set_selfpowered (gadget);
+ if (gadget->is_otg) {
+ otg_descriptor.bmAttributes |= USB_OTG_HNP,
+ eth_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
+ eth_config.bMaxPower = 4;
+#ifdef CONFIG_USB_ETH_RNDIS
+ rndis_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
+ rndis_config.bMaxPower = 4;
+#endif
+ }
+
net = alloc_etherdev (sizeof *dev);
if (!net)
return status;
- dev = net->priv;
+ dev = netdev_priv(net);
spin_lock_init (&dev->lock);
INIT_WORK (&dev->work, eth_work, dev);
INIT_LIST_HEAD (&dev->tx_reqs);
/* Module params for these addresses should come from ID proms.
* The host side address is used with CDC and RNDIS, and commonly
- * end ups in a persistent config database.
+ * ends up in a persistent config database.
*/
get_ether_addr(dev_addr, net->dev_addr);
if (cdc || rndis) {
net->stop = eth_stop;
// watchdog_timeo, tx_timeout ...
// set_multicast_list
- net->do_ioctl = eth_ioctl;
+ SET_ETHTOOL_OPS(net, &ops);
/* preallocate control response and buffer */
dev->req = usb_ep_alloc_request (gadget->ep0, GFP_KERNEL);