/* Based on linux 2.6.27 version */
#define DRIVER_VERSION "May Day 2005"
-static const char shortname [] = "ether";
-static const char driver_desc [] = DRIVER_DESC;
+static const char shortname[] = "ether";
+static const char driver_desc[] = DRIVER_DESC;
#define RX_EXTRA 20 /* guard against rx overflows */
{
#if !defined(DEV_CONFIG_SUBSET)
return 1; /* only cdc possible */
-#elif !defined (DEV_CONFIG_CDC)
+#elif !defined(DEV_CONFIG_CDC)
return 0; /* only subset possible */
#else
return dev->cdc; /* depends on what hardware we found */
}
#define subset_active(dev) (!is_cdc(dev))
-#define cdc_active(dev) ( is_cdc(dev))
+#define cdc_active(dev) (is_cdc(dev))
#define DEFAULT_QLEN 2 /* double buffering by default */
unsigned zlp:1;
unsigned cdc:1;
unsigned suspended:1;
- unsigned network_started:1;
+ unsigned network_started:1;
u16 cdc_filter;
unsigned long todo;
- int mtu;
+ int mtu;
#define WORK_RX_MEMORY 0
- u8 host_mac [ETH_ALEN];
+ u8 host_mac[ETH_ALEN];
};
-/* This version autoconfigures as much as possible at run-time.
+/*
+ * This version autoconfigures as much as possible at run-time.
*
* It also ASSUMES a self-powered device, without remote wakeup,
* although remote wakeup support would make sense.
/*-------------------------------------------------------------------------*/
-/* DO NOT REUSE THESE IDs with a protocol-incompatible driver!! Ever!!
+/*
+ * DO NOT REUSE THESE IDs with a protocol-incompatible driver!! Ever!!
* Instead: allocate your own, using normal USB-IF procedures.
*/
-/* Thanks to NetChip Technologies for donating this product ID.
+/*
+ * Thanks to NetChip Technologies for donating this product ID.
* It's for devices with only CDC Ethernet configurations.
*/
#define CDC_VENDOR_NUM 0x0525 /* NetChip */
#define CDC_PRODUCT_NUM 0xa4a1 /* Linux-USB Ethernet Gadget */
-/* For hardware that can't talk CDC, we use the same vendor ID that
+/*
+ * For hardware that can't talk CDC, we use the same vendor ID that
* ARM Linux has used for ethernet-over-usb, both with sa1100 and
* with pxa250. We're protocol-compatible, if the host-side drivers
* use the endpoint descriptors. bcdDevice (version) is nonzero, so
#define SIMPLE_VENDOR_NUM 0x049f
#define SIMPLE_PRODUCT_NUM 0x505a
-/* Some systems will want different product identifers published in the
+/*
+ * Some systems will want different product identifers published in the
* device descriptor, either numbers or strings or both. These string
* parameters are in UTF-8 (superset of ASCII's 7 bit characters).
*/
/*-------------------------------------------------------------------------*/
-/* USB DRIVER HOOKUP (to the hardware driver, below us), mostly
+/*
+ * USB DRIVER HOOKUP (to the hardware driver, below us), mostly
* ep0 implementation: descriptors, config management, setup().
* also optional class-specific notification interrupt transfer.
*/
.bLength = sizeof device_desc,
.bDescriptorType = USB_DT_DEVICE,
- .bcdUSB = __constant_cpu_to_le16 (0x0200),
+ .bcdUSB = __constant_cpu_to_le16(0x0200),
.bDeviceClass = USB_CLASS_COMM,
.bDeviceSubClass = 0,
.bDeviceProtocol = 0,
- .idVendor = __constant_cpu_to_le16 (CDC_VENDOR_NUM),
- .idProduct = __constant_cpu_to_le16 (CDC_PRODUCT_NUM),
+ .idVendor = __constant_cpu_to_le16(CDC_VENDOR_NUM),
+ .idProduct = __constant_cpu_to_le16(CDC_PRODUCT_NUM),
.iManufacturer = STRING_MANUFACTURER,
.iProduct = STRING_PRODUCT,
.bNumConfigurations = 1,
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubType = USB_CDC_HEADER_TYPE,
- .bcdCDC = __constant_cpu_to_le16 (0x0110),
+ .bcdCDC = __constant_cpu_to_le16(0x0110),
};
#if defined(DEV_CONFIG_CDC)
#ifndef DEV_CONFIG_CDC
-/* "SAFE" loosely follows CDC WMC MDLM, violating the spec in various
+/*
+ * "SAFE" loosely follows CDC WMC MDLM, violating the spec in various
* ways: data endpoints live in the control interface, there's no data
* interface, and it's not used to talk to a cell phone radio.
*/
},
};
-/* since "usb_cdc_mdlm_detail_desc" is a variable length structure, we
+/*
+ * since "usb_cdc_mdlm_detail_desc" is a variable length structure, we
* can't really use its struct. All we do here is say that we're using
* the submode of "SAFE" which directly matches the CDC Subset.
*/
#endif
-
static const struct usb_cdc_ether_desc ether_desc = {
- .bLength = sizeof (ether_desc),
+ .bLength = sizeof(ether_desc),
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubType = USB_CDC_ETHERNET_TYPE,
/* this descriptor actually adds value, surprise! */
.iMACAddress = STRING_ETHADDR,
- .bmEthernetStatistics = __constant_cpu_to_le32 (0), /* no statistics */
- .wMaxSegmentSize = __constant_cpu_to_le16 (ETH_FRAME_LEN),
- .wNumberMCFilters = __constant_cpu_to_le16 (0),
+ .bmEthernetStatistics = __constant_cpu_to_le32(0), /* no statistics */
+ .wMaxSegmentSize = __constant_cpu_to_le16(ETH_FRAME_LEN),
+ .wNumberMCFilters = __constant_cpu_to_le16(0),
.bNumberPowerFilters = 0,
};
-
#if defined(DEV_CONFIG_CDC)
-/* include the status endpoint if we can, even where it's optional.
+/*
+ * include the status endpoint if we can, even where it's optional.
* use wMaxPacketSize big enough to fit CDC_NOTIFY_SPEED_CHANGE in one
* packet, to simplify cancellation; and a big transfer interval, to
* waste less bandwidth.
.bEndpointAddress = USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_XFER_INT,
- .wMaxPacketSize = __constant_cpu_to_le16 (STATUS_BYTECOUNT),
+ .wMaxPacketSize = __constant_cpu_to_le16(STATUS_BYTECOUNT),
.bInterval = 1 << LOG2_STATUS_INTERVAL_MSEC,
};
#endif
#endif /* SUBSET */
-
static struct usb_endpoint_descriptor
fs_source_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
};
-static const struct usb_descriptor_header *fs_eth_function [11] = {
+static const struct usb_descriptor_header *fs_eth_function[11] = {
(struct usb_descriptor_header *) &otg_descriptor,
#ifdef DEV_CONFIG_CDC
/* "cdc" mode descriptors */
.bDescriptorType = USB_DT_ENDPOINT,
.bmAttributes = USB_ENDPOINT_XFER_INT,
- .wMaxPacketSize = __constant_cpu_to_le16 (STATUS_BYTECOUNT),
+ .wMaxPacketSize = __constant_cpu_to_le16(STATUS_BYTECOUNT),
.bInterval = LOG2_STATUS_INTERVAL_MSEC + 4,
};
#endif /* DEV_CONFIG_CDC */
.bDescriptorType = USB_DT_ENDPOINT,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = __constant_cpu_to_le16 (512),
+ .wMaxPacketSize = __constant_cpu_to_le16(512),
};
static struct usb_endpoint_descriptor
.bDescriptorType = USB_DT_ENDPOINT,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = __constant_cpu_to_le16 (512),
+ .wMaxPacketSize = __constant_cpu_to_le16(512),
};
static struct usb_qualifier_descriptor
.bLength = sizeof dev_qualifier,
.bDescriptorType = USB_DT_DEVICE_QUALIFIER,
- .bcdUSB = __constant_cpu_to_le16 (0x0200),
+ .bcdUSB = __constant_cpu_to_le16(0x0200),
.bDeviceClass = USB_CLASS_COMM,
.bNumConfigurations = 1,
};
-static const struct usb_descriptor_header *hs_eth_function [11] = {
+static const struct usb_descriptor_header *hs_eth_function[11] = {
(struct usb_descriptor_header *) &otg_descriptor,
#ifdef DEV_CONFIG_CDC
/* "cdc" mode descriptors */
return fs;
}
-
/*-------------------------------------------------------------------------*/
/* descriptors that are built on-demand */
-static char manufacturer [50];
-static char product_desc [40] = DRIVER_DESC;
-static char serial_number [20];
+static char manufacturer[50];
+static char product_desc[40] = DRIVER_DESC;
+static char serial_number[20];
/* address that the host will use ... usually assigned at random */
-static char ethaddr [2 * ETH_ALEN + 1];
+static char ethaddr[2 * ETH_ALEN + 1];
/* static strings, in UTF-8 */
-static struct usb_string strings [] = {
+static struct usb_string strings[] = {
{ STRING_MANUFACTURER, manufacturer, },
{ STRING_PRODUCT, product_desc, },
{ STRING_SERIALNUMBER, serial_number, },
.strings = strings,
};
-
/*============================================================================*/
static u8 control_req[USB_BUFSIZ];
-static u8 status_req[STATUS_BYTECOUNT];
-
+static u8 status_req[STATUS_BYTECOUNT] __attribute__ ((aligned(4)));
/**
return ret;
}
-
/*============================================================================*/
/*
return -EINVAL;
config = ð_config;
- function = which_fn (eth);
+ 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);
+ len = usb_gadget_config_buf(config, buf, USB_BUFSIZ, function);
if (len < 0)
return len;
((struct usb_config_descriptor *) buf)->bDescriptorType = type;
/*-------------------------------------------------------------------------*/
-static int alloc_requests (struct eth_dev *dev, unsigned n, gfp_t gfp_flags);
+static int alloc_requests(struct eth_dev *dev, unsigned n, gfp_t gfp_flags);
static int
-set_ether_config (struct eth_dev *dev, gfp_t gfp_flags)
+set_ether_config(struct eth_dev *dev, gfp_t gfp_flags)
{
int result = 0;
struct usb_gadget *gadget = dev->gadget;
#if defined(DEV_CONFIG_CDC)
/* status endpoint used for (optionally) CDC */
if (!subset_active(dev) && dev->status_ep) {
- dev->status = ep_desc (gadget, &hs_status_desc,
+ dev->status = ep_desc(gadget, &hs_status_desc,
&fs_status_desc);
dev->status_ep->driver_data = dev;
- result = usb_ep_enable (dev->status_ep, dev->status);
+ result = usb_ep_enable(dev->status_ep, dev->status);
if (result != 0) {
debug("enable %s --> %d\n",
dev->status_ep->name, result);
dev->out = ep_desc(gadget, &hs_sink_desc, &fs_sink_desc);
dev->out_ep->driver_data = dev;
- /* With CDC, the host isn't allowed to use these two data
+ /*
+ * With CDC, the host isn't allowed to use these two data
* endpoints in the default altsetting for the interface.
* so we don't activate them yet. Reset from SET_INTERFACE.
*/
if (!cdc_active(dev)) {
- result = usb_ep_enable (dev->in_ep, dev->in);
+ result = usb_ep_enable(dev->in_ep, dev->in);
if (result != 0) {
debug("enable %s --> %d\n",
dev->in_ep->name, result);
goto done;
}
- result = usb_ep_enable (dev->out_ep, dev->out);
+ result = usb_ep_enable(dev->out_ep, dev->out);
if (result != 0) {
debug("enable %s --> %d\n",
dev->out_ep->name, result);
done:
if (result == 0)
- result = alloc_requests (dev, qlen (gadget), gfp_flags);
+ result = alloc_requests(dev, qlen(gadget), gfp_flags);
/* on error, disable any endpoints */
if (result < 0) {
- if (!subset_active(dev))
- (void) usb_ep_disable (dev->status_ep);
+ if (!subset_active(dev) && dev->status_ep)
+ (void) usb_ep_disable(dev->status_ep);
dev->status = NULL;
- (void) usb_ep_disable (dev->in_ep);
- (void) usb_ep_disable (dev->out_ep);
+ (void) usb_ep_disable(dev->in_ep);
+ (void) usb_ep_disable(dev->out_ep);
dev->in = NULL;
dev->out = NULL;
}
return result;
}
-
-static void eth_reset_config (struct eth_dev *dev)
+static void eth_reset_config(struct eth_dev *dev)
{
if (dev->config == 0)
return;
debug("%s\n", __func__);
- /* disable endpoints, forcing (synchronous) completion of
+ /*
+ * disable endpoints, forcing (synchronous) completion of
* pending i/o. then free the requests.
*/
if (dev->in) {
- usb_ep_disable (dev->in_ep);
+ usb_ep_disable(dev->in_ep);
if (dev->tx_req) {
- usb_ep_free_request (dev->in_ep, dev->tx_req);
- dev->tx_req=NULL;
+ usb_ep_free_request(dev->in_ep, dev->tx_req);
+ dev->tx_req = NULL;
}
}
if (dev->out) {
- usb_ep_disable (dev->out_ep);
+ usb_ep_disable(dev->out_ep);
if (dev->rx_req) {
- usb_ep_free_request (dev->out_ep, dev->rx_req);
- dev->rx_req=NULL;
+ usb_ep_free_request(dev->out_ep, dev->rx_req);
+ dev->rx_req = NULL;
}
}
- if (dev->status) {
- usb_ep_disable (dev->status_ep);
- }
+ if (dev->status)
+ usb_ep_disable(dev->status_ep);
+
dev->cdc_filter = 0;
dev->config = 0;
}
-/* change our operational config. must agree with the code
+/*
+ * change our operational config. must agree with the code
* that returns config descriptors, and altsetting code.
*/
-static int eth_set_config (struct eth_dev *dev, unsigned number, gfp_t gfp_flags)
+static int eth_set_config(struct eth_dev *dev, unsigned number,
+ gfp_t gfp_flags)
{
int result = 0;
struct usb_gadget *gadget = dev->gadget;
- if (gadget_is_sa1100 (gadget)
+ if (gadget_is_sa1100(gadget)
&& dev->config
&& dev->tx_qlen != 0) {
/* tx fifo is full, but we can't clear it...*/
error("can't change configurations");
return -ESPIPE;
}
- eth_reset_config (dev);
+ eth_reset_config(dev);
switch (number) {
case DEV_CONFIG_VALUE:
- result = set_ether_config (dev, gfp_flags);
+ result = set_ether_config(dev, gfp_flags);
break;
default:
result = -EINVAL;
if (result) {
if (number)
- eth_reset_config (dev);
+ eth_reset_config(dev);
usb_gadget_vbus_draw(dev->gadget,
gadget_is_otg(dev->gadget) ? 8 : 100);
} else {
usb_gadget_vbus_draw(dev->gadget, power);
switch (gadget->speed) {
- case USB_SPEED_FULL: speed = "full"; break;
+ case USB_SPEED_FULL:
+ speed = "full"; break;
#ifdef CONFIG_USB_GADGET_DUALSPEED
- case USB_SPEED_HIGH: speed = "high"; break;
+ case USB_SPEED_HIGH:
+ speed = "high"; break;
#endif
- default: speed = "?"; break;
+ default:
+ speed = "?"; break;
}
dev->config = number;
printf("%s speed config #%d: %d mA, %s, using %s\n",
speed, number, power, driver_desc,
- (cdc_active(dev)? "CDC Ethernet"
+ (cdc_active(dev) ? "CDC Ethernet"
: "CDC Ethernet Subset"));
}
return result;
#ifdef DEV_CONFIG_CDC
-/* The interrupt endpoint is used in CDC networking models (Ethernet, ATM)
+/*
+ * The interrupt endpoint is used in CDC networking models (Ethernet, ATM)
* only to notify the host about link status changes (which we support) or
* report completion of some encapsulated command. Since
* we want this CDC Ethernet code to be vendor-neutral, we don't use that
* command mechanism; and only one status request is ever queued.
*/
-static void eth_status_complete (struct usb_ep *ep, struct usb_request *req)
+static void eth_status_complete(struct usb_ep *ep, struct usb_request *req)
{
struct usb_cdc_notification *event = req->buf;
int value = req->status;
event->bmRequestType = 0xA1;
event->bNotificationType = USB_CDC_NOTIFY_SPEED_CHANGE;
- event->wValue = __constant_cpu_to_le16 (0);
- event->wIndex = __constant_cpu_to_le16 (1);
- event->wLength = __constant_cpu_to_le16 (8);
+ event->wValue = __constant_cpu_to_le16(0);
+ event->wIndex = __constant_cpu_to_le16(1);
+ event->wLength = __constant_cpu_to_le16(8);
/* SPEED_CHANGE data is up/down speeds in bits/sec */
- data [0] = data [1] = cpu_to_le32 (BITRATE (dev->gadget));
+ data[0] = data[1] = cpu_to_le32(BITRATE(dev->gadget));
req->length = STATUS_BYTECOUNT;
- value = usb_ep_queue (ep, req, GFP_ATOMIC);
+ value = usb_ep_queue(ep, req, GFP_ATOMIC);
debug("send SPEED_CHANGE --> %d\n", value);
if (value == 0)
return;
} else if (value != -ECONNRESET) {
debug("event %02x --> %d\n",
event->bNotificationType, value);
- if (event->bNotificationType==
- USB_CDC_NOTIFY_SPEED_CHANGE)
- {
- l_ethdev.network_started=1;
+ if (event->bNotificationType ==
+ USB_CDC_NOTIFY_SPEED_CHANGE) {
+ l_ethdev.network_started = 1;
printf("USB network up!\n");
}
}
req->context = NULL;
}
-static void issue_start_status (struct eth_dev *dev)
+static void issue_start_status(struct eth_dev *dev)
{
struct usb_request *req = dev->stat_req;
struct usb_cdc_notification *event;
int value;
- /* flush old status
+ /*
+ * flush old status
*
* FIXME ugly idiom, maybe we'd be better with just
* a "cancel the whole queue" primitive since any
*
* FIXME iff req->context != null just dequeue it
*/
- usb_ep_disable (dev->status_ep);
- usb_ep_enable (dev->status_ep, dev->status);
+ usb_ep_disable(dev->status_ep);
+ usb_ep_enable(dev->status_ep, dev->status);
- /* 3.8.1 says to issue first NETWORK_CONNECTION, then
+ /*
+ * 3.8.1 says to issue first NETWORK_CONNECTION, then
* a SPEED_CHANGE. could be useful in some configs.
*/
event = req->buf;
event->bmRequestType = 0xA1;
event->bNotificationType = USB_CDC_NOTIFY_NETWORK_CONNECTION;
- event->wValue = __constant_cpu_to_le16 (1); /* connected */
- event->wIndex = __constant_cpu_to_le16 (1);
+ event->wValue = __constant_cpu_to_le16(1); /* connected */
+ event->wIndex = __constant_cpu_to_le16(1);
event->wLength = 0;
req->length = sizeof *event;
req->complete = eth_status_complete;
req->context = dev;
- value = usb_ep_queue (dev->status_ep, req, GFP_ATOMIC);
+ value = usb_ep_queue(dev->status_ep, req, GFP_ATOMIC);
if (value < 0)
debug("status buf queue --> %d\n", value);
}
/*-------------------------------------------------------------------------*/
-static void eth_setup_complete (struct usb_ep *ep, struct usb_request *req)
+static void eth_setup_complete(struct usb_ep *ep, struct usb_request *req)
{
if (req->status || req->actual != req->length)
debug("setup complete --> %d, %d/%d\n",
* - class-specific control requests
*/
static int
-eth_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
+eth_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
{
- struct eth_dev *dev = get_gadget_data (gadget);
+ struct eth_dev *dev = get_gadget_data(gadget);
struct usb_request *req = dev->req;
int value = -EOPNOTSUPP;
u16 wIndex = le16_to_cpu(ctrl->wIndex);
u16 wValue = le16_to_cpu(ctrl->wValue);
u16 wLength = le16_to_cpu(ctrl->wLength);
- /* descriptors just go into the pre-allocated ep0 buffer,
+ /*
+ * descriptors just go into the pre-allocated ep0 buffer,
* while config change events may enable network traffic.
*/
switch (wValue >> 8) {
case USB_DT_DEVICE:
- value = min (wLength, (u16) sizeof device_desc);
- memcpy (req->buf, &device_desc, value);
+ value = min(wLength, (u16) sizeof device_desc);
+ memcpy(req->buf, &device_desc, value);
break;
case USB_DT_DEVICE_QUALIFIER:
if (!gadget_is_dualspeed(gadget))
break;
- value = min (wLength, (u16) sizeof dev_qualifier);
- memcpy (req->buf, &dev_qualifier, value);
+ value = min(wLength, (u16) sizeof dev_qualifier);
+ memcpy(req->buf, &dev_qualifier, value);
break;
case USB_DT_OTHER_SPEED_CONFIG:
wValue & 0xff,
gadget_is_otg(gadget));
if (value >= 0)
- value = min (wLength, (u16) value);
+ value = min(wLength, (u16) value);
break;
case USB_DT_STRING:
- value = usb_gadget_get_string (&stringtab,
+ value = usb_gadget_get_string(&stringtab,
wValue & 0xff, req->buf);
if (value >= 0)
- value = min (wLength, (u16) value);
+ value = min(wLength, (u16) value);
break;
}
debug("HNP available\n");
else if (gadget->a_alt_hnp_support)
debug("HNP needs a different root port\n");
- value = eth_set_config (dev, wValue, GFP_ATOMIC);
+ value = eth_set_config(dev, wValue, GFP_ATOMIC);
break;
case USB_REQ_GET_CONFIGURATION:
if (ctrl->bRequestType != USB_DIR_IN)
break;
*(u8 *)req->buf = dev->config;
- value = min (wLength, (u16) 1);
+ value = min(wLength, (u16) 1);
break;
case USB_REQ_SET_INTERFACE:
if (!cdc_active(dev) && wIndex != 0)
break;
- /* PXA hardware partially handles SET_INTERFACE;
+ /*
+ * PXA hardware partially handles SET_INTERFACE;
* we need to kluge around that interference.
*/
- if (gadget_is_pxa (gadget)) {
- value = eth_set_config (dev, DEV_CONFIG_VALUE,
+ if (gadget_is_pxa(gadget)) {
+ value = eth_set_config(dev, DEV_CONFIG_VALUE,
GFP_ATOMIC);
goto done_set_intf;
}
if (wValue != 0)
break;
if (dev->status) {
- usb_ep_disable (dev->status_ep);
- usb_ep_enable (dev->status_ep, dev->status);
+ usb_ep_disable(dev->status_ep);
+ usb_ep_enable(dev->status_ep, dev->status);
}
value = 0;
break;
case 1: /* data intf */
if (wValue > 1)
break;
- usb_ep_disable (dev->in_ep);
- usb_ep_disable (dev->out_ep);
+ usb_ep_disable(dev->in_ep);
+ usb_ep_disable(dev->out_ep);
- /* CDC requires the data transfers not be done from
+ /*
+ * CDC requires the data transfers not be done from
* the default interface setting ... also, setting
* the non-default interface resets filters etc.
*/
if (wValue == 1) {
- if (!cdc_active (dev))
+ if (!cdc_active(dev))
break;
- usb_ep_enable (dev->in_ep, dev->in);
- usb_ep_enable (dev->out_ep, dev->out);
+ usb_ep_enable(dev->in_ep, dev->in);
+ usb_ep_enable(dev->out_ep, dev->out);
dev->cdc_filter = DEFAULT_FILTER;
if (dev->status)
- issue_start_status (dev);
+ issue_start_status(dev);
}
value = 0;
break;
}
#else
- /* FIXME this is wrong, as is the assumption that
+ /*
+ * FIXME this is wrong, as is the assumption that
* all non-PXA hardware talks real CDC ...
*/
debug("set_interface ignored!\n");
/* carrier always ok ...*/
*(u8 *)req->buf = 1 ;
}
- value = min (wLength, (u16) 1);
+ value = min(wLength, (u16) 1);
break;
#ifdef DEV_CONFIG_CDC
case USB_CDC_SET_ETHERNET_PACKET_FILTER:
- /* see 6.2.30: no data, wIndex = interface,
+ /*
+ * see 6.2.30: no data, wIndex = interface,
* wValue = packet filter bitmap
*/
if (ctrl->bRequestType != (USB_TYPE_CLASS|USB_RECIP_INTERFACE)
value = 0;
break;
- /* and potentially:
+ /*
+ * and potentially:
* case USB_CDC_SET_ETHERNET_MULTICAST_FILTERS:
* case USB_CDC_SET_ETHERNET_PM_PATTERN_FILTER:
* case USB_CDC_GET_ETHERNET_PM_PATTERN_FILTER:
req->length = value;
req->zero = value < wLength
&& (value % gadget->ep0->maxpacket) == 0;
- value = usb_ep_queue (gadget->ep0, req, GFP_ATOMIC);
+ value = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC);
if (value < 0) {
debug("ep_queue --> %d\n", value);
req->status = 0;
- eth_setup_complete (gadget->ep0, req);
+ eth_setup_complete(gadget->ep0, req);
}
}
return value;
}
-
/*-------------------------------------------------------------------------*/
-static void rx_complete (struct usb_ep *ep, struct usb_request *req);
+static void rx_complete(struct usb_ep *ep, struct usb_request *req);
-static int rx_submit ( struct eth_dev *dev, struct usb_request *req, \
+static int rx_submit(struct eth_dev *dev, struct usb_request *req,
gfp_t gfp_flags)
{
int retval = -ENOMEM;
size_t size;
- /* Padding up to RX_EXTRA handles minor disagreements with host.
+ /*
+ * 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), since that memory is normally
* already allocated. Some hardware doesn't deal well with short
size += dev->out_ep->maxpacket - 1;
size -= size % dev->out_ep->maxpacket;
-
- /* Some platforms perform better when IP packets are aligned,
+ /*
+ * Some platforms perform better when IP packets are aligned,
* but on at least one, checksumming fails otherwise.
*/
req->length = size;
req->complete = rx_complete;
- retval = usb_ep_queue (dev->out_ep, req, gfp_flags);
+ retval = usb_ep_queue(dev->out_ep, req, gfp_flags);
- if (retval) {
+ if (retval)
error("rx submit --> %d", retval);
- }
+
return retval;
}
-
-static void rx_complete (struct usb_ep *ep, struct usb_request *req)
+static void rx_complete(struct usb_ep *ep, struct usb_request *req)
{
struct eth_dev *dev = ep->driver_data;
debug("%s: status %d\n", __func__, req->status);
- packet_received=1;
-
- if (req)
- dev->rx_req=req;
+ packet_received = 1;
}
-
-static int alloc_requests (struct eth_dev *dev, unsigned n, gfp_t gfp_flags)
+static int alloc_requests(struct eth_dev *dev, unsigned n, gfp_t gfp_flags)
{
- dev->tx_req = usb_ep_alloc_request (dev->in_ep, 0);
+ dev->tx_req = usb_ep_alloc_request(dev->in_ep, 0);
if (!dev->tx_req)
- goto fail;
+ goto fail1;
- dev->rx_req = usb_ep_alloc_request (dev->out_ep, 0);
+ dev->rx_req = usb_ep_alloc_request(dev->out_ep, 0);
if (!dev->rx_req)
- goto fail;
+ goto fail2;
return 0;
-fail:
+fail2:
+ usb_ep_free_request(dev->in_ep, dev->tx_req);
+fail1:
error("can't alloc requests");
return -1;
}
-
-static void tx_complete (struct usb_ep *ep, struct usb_request *req)
+static void tx_complete(struct usb_ep *ep, struct usb_request *req)
{
- debug("%s: status %s\n", __func__, (req->status)?"failed":"ok");
- packet_sent=1;
+ debug("%s: status %s\n", __func__, (req->status) ? "failed" : "ok");
+ packet_sent = 1;
}
-static inline int eth_is_promisc (struct eth_dev *dev)
+static inline int eth_is_promisc(struct eth_dev *dev)
{
/* no filters for the CDC subset; always promisc */
- if (subset_active (dev))
+ if (subset_active(dev))
return 1;
return dev->cdc_filter & USB_CDC_PACKET_TYPE_PROMISCUOUS;
}
/*-------------------------------------------------------------------------*/
#endif
-static void eth_unbind (struct usb_gadget *gadget)
+static void eth_unbind(struct usb_gadget *gadget)
{
- struct eth_dev *dev = get_gadget_data (gadget);
+ struct eth_dev *dev = get_gadget_data(gadget);
debug("%s...\n", __func__);
/* we've already been disconnected ... no i/o is active */
if (dev->req) {
- usb_ep_free_request (gadget->ep0, dev->req);
+ usb_ep_free_request(gadget->ep0, dev->req);
dev->req = NULL;
}
if (dev->stat_req) {
- usb_ep_free_request (dev->status_ep, dev->stat_req);
+ usb_ep_free_request(dev->status_ep, dev->stat_req);
dev->stat_req = NULL;
}
if (dev->tx_req) {
- usb_ep_free_request (dev->in_ep, dev->tx_req);
- dev->tx_req=NULL;
+ usb_ep_free_request(dev->in_ep, dev->tx_req);
+ dev->tx_req = NULL;
}
if (dev->rx_req) {
- usb_ep_free_request (dev->out_ep, dev->rx_req);
- dev->rx_req=NULL;
+ usb_ep_free_request(dev->out_ep, dev->rx_req);
+ dev->rx_req = NULL;
}
/* unregister_netdev (dev->net);*/
/* free_netdev(dev->net);*/
- set_gadget_data (gadget, NULL);
+ set_gadget_data(gadget, NULL);
}
-static void eth_disconnect (struct usb_gadget *gadget)
+static void eth_disconnect(struct usb_gadget *gadget)
{
- eth_reset_config (get_gadget_data (gadget));
+ eth_reset_config(get_gadget_data(gadget));
}
-static void eth_suspend (struct usb_gadget *gadget)
+static void eth_suspend(struct usb_gadget *gadget)
{
/* Not used */
}
-static void eth_resume (struct usb_gadget *gadget)
+static void eth_resume(struct usb_gadget *gadget)
{
/* Not used */
}
return 0;
}
-static u8 nibble (unsigned char c)
+static u8 nibble(unsigned char c)
{
- if (likely (isdigit (c)))
+ if (likely(isdigit(c)))
return c - '0';
- c = toupper (c);
- if (likely (isxdigit (c)))
+ c = toupper(c);
+ if (likely(isxdigit(c)))
return 10 + c - 'A';
return 0;
}
for (i = 0; i < 6; i++) {
unsigned char num;
- if((*str == '.') || (*str == ':'))
+ if ((*str == '.') || (*str == ':'))
str++;
num = nibble(*str++) << 4;
num |= (nibble(*str++));
- dev_addr [i] = num;
+ dev_addr[i] = num;
}
- if (is_valid_ether_addr (dev_addr))
+ if (is_valid_ether_addr(dev_addr))
return 0;
}
return 1;
u8 cdc = 1, zlp = 1;
struct usb_ep *in_ep, *out_ep, *status_ep = NULL;
int gcnum;
- u8 tmp[7];
+ u8 tmp[7];
/* these flags are only ever cleared; compiler take note */
#ifndef DEV_CONFIG_CDC
cdc = 0;
#endif
- /* Because most host side USB stacks handle CDC Ethernet, that
+ /*
+ * Because most host side USB stacks handle CDC Ethernet, that
* standard protocol is _strongly_ preferred for interop purposes.
* (By everyone except Microsoft.)
*/
- if (gadget_is_pxa (gadget)) {
+ if (gadget_is_pxa(gadget)) {
/* pxa doesn't support altsettings */
cdc = 0;
} else if (gadget_is_musbhdrc(gadget)) {
} else if (gadget_is_sh(gadget)) {
/* sh doesn't support multiple interfaces or configs */
cdc = 0;
- } else if (gadget_is_sa1100 (gadget)) {
+ } else if (gadget_is_sa1100(gadget)) {
/* hardware can't write zlps */
zlp = 0;
- /* sa1100 CAN do CDC, without status endpoint ... we use
+ /*
+ * sa1100 CAN do CDC, without status endpoint ... we use
* non-CDC to be compatible with ARM Linux-2.4 "usb-eth".
*/
cdc = 0;
}
- gcnum = usb_gadget_controller_number (gadget);
+ gcnum = usb_gadget_controller_number(gadget);
if (gcnum >= 0)
- device_desc.bcdDevice = cpu_to_le16 (0x0300 + gcnum);
+ device_desc.bcdDevice = cpu_to_le16(0x0300 + gcnum);
else {
- /* can't assume CDC works. don't want to default to
+ /*
+ * can't assume CDC works. don't want to default to
* anything less functional on CDC-capable hardware,
* so we fail in this case.
*/
return -ENODEV;
}
- /* CDC subset ... recognized by Linux since 2.4.10, but Windows
+ /*
+ * CDC subset ... recognized by Linux since 2.4.10, but Windows
* drivers aren't widely available. (That may be improved by
* supporting one submode of the "SAFE" variant of MDLM.)
*/
if (bcdDevice)
device_desc.bcdDevice = cpu_to_le16(bcdDevice);
if (iManufacturer)
- strlcpy (manufacturer, iManufacturer, sizeof manufacturer);
+ strlcpy(manufacturer, iManufacturer, sizeof manufacturer);
if (iProduct)
- strlcpy (product_desc, iProduct, sizeof product_desc);
+ strlcpy(product_desc, iProduct, sizeof product_desc);
if (iSerialNumber) {
device_desc.iSerialNumber = STRING_SERIALNUMBER,
strlcpy(serial_number, iSerialNumber, sizeof serial_number);
}
/* all we really need is bulk IN/OUT */
- usb_ep_autoconfig_reset (gadget);
- in_ep = usb_ep_autoconfig (gadget, &fs_source_desc);
+ usb_ep_autoconfig_reset(gadget);
+ in_ep = usb_ep_autoconfig(gadget, &fs_source_desc);
if (!in_ep) {
autoconf_fail:
error("can't autoconfigure on %s\n",
}
in_ep->driver_data = in_ep; /* claim */
- out_ep = usb_ep_autoconfig (gadget, &fs_sink_desc);
+ out_ep = usb_ep_autoconfig(gadget, &fs_sink_desc);
if (!out_ep)
goto autoconf_fail;
out_ep->driver_data = out_ep; /* claim */
#if defined(DEV_CONFIG_CDC)
- /* CDC Ethernet control interface doesn't require a status endpoint.
+ /*
+ * CDC Ethernet control interface doesn't require a status endpoint.
* Since some hosts expect one, try to allocate one anyway.
*/
if (cdc) {
- status_ep = usb_ep_autoconfig (gadget, &fs_status_desc);
+ status_ep = usb_ep_autoconfig(gadget, &fs_status_desc);
if (status_ep) {
status_ep->driver_data = status_ep; /* claim */
} else if (cdc) {
eth_config.bNumInterfaces = 1;
eth_config.iConfiguration = STRING_SUBSET;
- /* use functions to set these up, in case we're built to work
+ /*
+ * use functions to set these up, in case we're built to work
* with multiple controllers and must override CDC Ethernet.
*/
fs_subset_descriptors();
}
device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket;
- usb_gadget_set_selfpowered (gadget);
+ usb_gadget_set_selfpowered(gadget);
if (gadget_is_dualspeed(gadget)) {
if (!cdc)
}
dev->net = &l_netdev;
- strcpy (dev->net->name, USB_NET_NAME);
+ strcpy(dev->net->name, USB_NET_NAME);
dev->cdc = cdc;
dev->zlp = zlp;
dev->out_ep = out_ep;
dev->status_ep = status_ep;
- /* Module params for these addresses should come from ID proms.
+ /*
+ * Module params for these addresses should come from ID proms.
* The host side address is used with CDC, and commonly
* ends up in a persistent config database. It's not clear if
* host side code for the SAFE thing cares -- its original BLAN
get_ether_addr(host_addr, dev->host_mac);
- sprintf (ethaddr, "%02X%02X%02X%02X%02X%02X",
- dev->host_mac [0], dev->host_mac [1],
- dev->host_mac [2], dev->host_mac [3],
- dev->host_mac [4], dev->host_mac [5]);
+ sprintf(ethaddr, "%02X%02X%02X%02X%02X%02X",
+ dev->host_mac[0], dev->host_mac[1],
+ dev->host_mac[2], dev->host_mac[3],
+ dev->host_mac[4], dev->host_mac[5]);
printf("using %s, OUT %s IN %s%s%s\n", gadget->name,
out_ep->name, in_ep->name,
status_ep ? status_ep->name : ""
);
printf("MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
- dev->net->enetaddr [0], dev->net->enetaddr [1],
- dev->net->enetaddr [2], dev->net->enetaddr [3],
- dev->net->enetaddr [4], dev->net->enetaddr [5]);
+ dev->net->enetaddr[0], dev->net->enetaddr[1],
+ dev->net->enetaddr[2], dev->net->enetaddr[3],
+ dev->net->enetaddr[4], dev->net->enetaddr[5]);
if (cdc) {
printf("HOST MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
- dev->host_mac [0], dev->host_mac [1],
- dev->host_mac [2], dev->host_mac [3],
- dev->host_mac [4], dev->host_mac [5]);
+ dev->host_mac[0], dev->host_mac[1],
+ dev->host_mac[2], dev->host_mac[3],
+ dev->host_mac[4], dev->host_mac[5]);
}
- /* use PKTSIZE (or aligned... from u-boot) and set
- * wMaxSegmentSize accordingly*/
+ /*
+ * use PKTSIZE (or aligned... from u-boot) and set
+ * wMaxSegmentSize accordingly
+ */
dev->mtu = PKTSIZE_ALIGN; /* RNDIS does not like this, only 1514, TODO*/
/* preallocate control message data and buffer */
- dev->req = usb_ep_alloc_request (gadget->ep0, GFP_KERNEL);
+ dev->req = usb_ep_alloc_request(gadget->ep0, GFP_KERNEL);
if (!dev->req)
goto fail;
dev->req->buf = control_req;
/* ... and maybe likewise for status transfer */
#if defined(DEV_CONFIG_CDC)
if (dev->status_ep) {
- dev->stat_req = usb_ep_alloc_request(dev->status_ep, GFP_KERNEL);
+ dev->stat_req = usb_ep_alloc_request(dev->status_ep,
+ GFP_KERNEL);
if (!dev->stat_req) {
- usb_ep_free_request (dev->status_ep, dev->req);
+ usb_ep_free_request(dev->status_ep, dev->req);
goto fail;
}
/* finish hookup to lower layer ... */
dev->gadget = gadget;
- set_gadget_data (gadget, dev);
+ set_gadget_data(gadget, dev);
gadget->ep0->driver_data = dev;
- /* two kinds of host-initiated state changes:
+ /*
+ * two kinds of host-initiated state changes:
* - iff DATA transfer is active, carrier is "on"
* - tx queueing enabled if open *and* carrier is "on"
*/
fail:
error("%s failed", __func__);
- eth_unbind (gadget);
+ eth_unbind(gadget);
return -ENOMEM;
}
-static int usb_eth_init(struct eth_device* netdev, bd_t* bd)
+static int usb_eth_init(struct eth_device *netdev, bd_t *bd)
{
- struct eth_dev *dev=&l_ethdev;
+ struct eth_dev *dev = &l_ethdev;
struct usb_gadget *gadget;
unsigned long ts;
unsigned long timeout = USB_CONNECT_TIMEOUT;
}
dev->network_started = 0;
- dev->tx_req = NULL;
- dev->rx_req = NULL;
packet_received = 0;
packet_sent = 0;
timeout = simple_strtoul(getenv("cdc_connect_timeout"),
NULL, 10) * CONFIG_SYS_HZ;
ts = get_timer(0);
- while (!l_ethdev.network_started)
- {
+ while (!l_ethdev.network_started) {
/* Handle control-c and timeouts */
if (ctrlc() || (get_timer(ts) > timeout)) {
error("The remote end did not respond in time.");
usb_gadget_handle_interrupts();
}
- rx_submit (dev, dev->rx_req, 0);
+ rx_submit(dev, dev->rx_req, 0);
return 0;
fail:
return -1;
}
-static int usb_eth_send(struct eth_device* netdev, volatile void* packet, int length)
+static int usb_eth_send(struct eth_device *netdev,
+ volatile void *packet, int length)
{
int retval;
- struct usb_request *req = NULL;
struct eth_dev *dev = &l_ethdev;
+ struct usb_request *req = dev->tx_req;
+ unsigned long ts;
+ unsigned long timeout = USB_CONNECT_TIMEOUT;
debug("%s:...\n", __func__);
- req = dev->tx_req;
-
req->buf = (void *)packet;
req->context = NULL;
req->complete = tx_complete;
- /* use zlp framing on tx for strict CDC-Ether conformance,
+ /*
+ * use zlp framing on tx for strict CDC-Ether conformance,
* though any robust network rx path ignores extra padding.
* and some hardware doesn't like to write zlps.
*/
req->no_interrupt = (dev->gadget->speed == USB_SPEED_HIGH)
? ((dev->tx_qlen % qmult) != 0) : 0;
#endif
- dev->tx_qlen=1;
+ dev->tx_qlen = 1;
+ ts = get_timer(0);
+ packet_sent = 0;
- retval = usb_ep_queue (dev->in_ep, req, GFP_ATOMIC);
+ retval = usb_ep_queue(dev->in_ep, req, GFP_ATOMIC);
if (!retval)
debug("%s: packet queued\n", __func__);
- while(!packet_sent)
- {
- packet_sent=0;
+ while (!packet_sent) {
+ if (get_timer(ts) > timeout) {
+ printf("timeout sending packets to usb ethernet\n");
+ return -1;
+ }
+ usb_gadget_handle_interrupts();
}
return 0;
}
-static int usb_eth_recv(struct eth_device* netdev)
+static int usb_eth_recv(struct eth_device *netdev)
{
struct eth_dev *dev = &l_ethdev;
usb_gadget_handle_interrupts();
- if (packet_received)
- {
- debug("%s: packet received \n", __func__);
- if (dev->rx_req)
- {
- NetReceive(NetRxPackets[0],dev->rx_req->length);
- packet_received=0;
+ if (packet_received) {
+ debug("%s: packet received\n", __func__);
+ if (dev->rx_req) {
+ NetReceive(NetRxPackets[0], dev->rx_req->length);
+ packet_received = 0;
- if (dev->rx_req)
- rx_submit (dev, dev->rx_req, 0);
- }
- else error("dev->rx_req invalid");
+ rx_submit(dev, dev->rx_req, 0);
+ } else
+ error("dev->rx_req invalid");
}
return 0;
}
-void usb_eth_halt(struct eth_device* netdev)
+void usb_eth_halt(struct eth_device *netdev)
{
- struct eth_dev *dev =&l_ethdev;
+ struct eth_dev *dev = &l_ethdev;
- if (!netdev)
- {
+ if (!netdev) {
error("received NULL ptr");
return;
}
int usb_eth_initialize(bd_t *bi)
{
int status = 0;
- struct eth_device *netdev=&l_netdev;
+ struct eth_device *netdev = &l_netdev;
- sprintf(netdev->name,"usb_ether");
+ sprintf(netdev->name, "usb_ether");
netdev->init = usb_eth_init;
netdev->send = usb_eth_send;
projects / platform / kernel / u-boot.git / blobdiff