[U-Boot] [PATCH 4/5] USB: Add USB RNDIS gadget protocol
Vitaly Kuzmichev
vkuzmichev at mvista.com
Fri Feb 11 16:18:34 CET 2011
Port USB gadget RNDIS protocol support from linux-2.6.26
(.27 gadget stack actually has composite drivers).
Signed-off-by: Vitaly Kuzmichev <vkuzmichev at mvista.com>
---
drivers/usb/gadget/Makefile | 1 +
drivers/usb/gadget/ether.c | 640 +++++++++++++++++++--
drivers/usb/gadget/ndis.h | 217 +++++++
drivers/usb/gadget/rndis.c | 1312 +++++++++++++++++++++++++++++++++++++++++++
drivers/usb/gadget/rndis.h | 252 +++++++++
include/linux/usb/cdc.h | 6 +-
6 files changed, 2367 insertions(+), 61 deletions(-)
create mode 100644 drivers/usb/gadget/ndis.h
create mode 100644 drivers/usb/gadget/rndis.c
create mode 100644 drivers/usb/gadget/rndis.h
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index f137817..7d5b504 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -28,6 +28,7 @@ LIB := $(obj)libusb_gadget.o
# new USB gadget layer dependencies
ifdef CONFIG_USB_ETHER
COBJS-y += ether.o epautoconf.o config.o usbstring.o
+COBJS-$(CONFIG_USB_ETH_RNDIS) += rndis.o
else
# Devices not related to the new gadget layer depend on CONFIG_USB_DEVICE
ifdef CONFIG_USB_DEVICE
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index c070f63..f909267 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -27,9 +27,11 @@
#include <linux/usb/cdc.h>
#include <linux/usb/gadget.h>
#include <net.h>
+#include <malloc.h>
#include <linux/ctype.h>
#include "gadget_chips.h"
+#include "rndis.h"
#define USB_NET_NAME "usb_ether"
@@ -95,7 +97,13 @@ static const char driver_desc[] = DRIVER_DESC;
#define RX_EXTRA 20 /* guard against rx overflows */
-/* CDC support the same host-chosen outgoing packet filters. */
+#ifndef CONFIG_USB_ETH_RNDIS
+#define rndis_uninit(x) do {} while (0)
+#define rndis_deregister(c) do {} while (0)
+#define rndis_exit() do {} while (0)
+#endif
+
+/* 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 \
@@ -108,7 +116,7 @@ static const char driver_desc[] = DRIVER_DESC;
struct eth_dev {
struct usb_gadget *gadget;
struct usb_request *req; /* for control responses */
- struct usb_request *stat_req; /* for cdc status */
+ struct usb_request *stat_req; /* for cdc & rndis status */
u8 config;
struct usb_ep *in_ep, *out_ep, *status_ep;
@@ -123,12 +131,14 @@ struct eth_dev {
unsigned zlp:1;
unsigned cdc:1;
+ unsigned rndis:1;
unsigned suspended:1;
unsigned network_started:1;
u16 cdc_filter;
unsigned long todo;
int mtu;
#define WORK_RX_MEMORY 0
+ int rndis_config;
u8 host_mac[ETH_ALEN];
};
@@ -158,8 +168,18 @@ static inline int is_cdc(struct eth_dev *dev)
#endif
}
-#define subset_active(dev) (!is_cdc(dev))
-#define cdc_active(dev) (is_cdc(dev))
+/* "secondary" RNDIS config may sometimes be activated */
+static inline int rndis_active(struct eth_dev *dev)
+{
+#ifdef CONFIG_USB_ETH_RNDIS
+ return dev->rndis;
+#else
+ return 0;
+#endif
+}
+
+#define subset_active(dev) (!is_cdc(dev) && !rndis_active(dev))
+#define cdc_active(dev) (is_cdc(dev) && !rndis_active(dev))
#define DEFAULT_QLEN 2 /* double buffering by default */
@@ -225,8 +245,17 @@ static inline int BITRATE(struct usb_gadget *g)
* RNDIS (like SA-1100, with no interrupt endpoint, or anything that
* doesn't handle control-OUT).
*/
-#define SIMPLE_VENDOR_NUM 0x049f
-#define SIMPLE_PRODUCT_NUM 0x505a
+#define SIMPLE_VENDOR_NUM 0x049f /* Compaq Computer Corp. */
+#define SIMPLE_PRODUCT_NUM 0x505a /* Linux-USB "CDC Subset" Device */
+
+/*
+ * For hardware that can talk RNDIS and either of the above protocols,
+ * use this ID ... the windows INF files will know it. Unless it's
+ * used with CDC Ethernet, Linux 2.4 hosts will need updates to choose
+ * the non-RNDIS configuration.
+ */
+#define RNDIS_VENDOR_NUM 0x0525 /* NetChip */
+#define RNDIS_PRODUCT_NUM 0xa4a2 /* Ethernet/RNDIS Gadget */
/*
* Some systems will want different product identifers published in the
@@ -234,17 +263,28 @@ static inline int BITRATE(struct usb_gadget *g)
* parameters are in UTF-8 (superset of ASCII's 7 bit characters).
*/
-static ushort bcdDevice;
+/*
+ * Emulating them in eth_bind:
+ * static ushort idVendor;
+ * static ushort idProduct;
+ */
+
#if defined(CONFIG_USBNET_MANUFACTURER)
static char *iManufacturer = CONFIG_USBNET_MANUFACTURER;
#else
static char *iManufacturer = "U-boot";
#endif
+
+/* These probably need to be configurable. */
+static ushort bcdDevice;
static char *iProduct;
static char *iSerialNumber;
+
static char dev_addr[18];
+
static char host_addr[18];
+
/*-------------------------------------------------------------------------*/
/*
@@ -256,7 +296,12 @@ static char host_addr[18];
/*
* DESCRIPTORS ... most are static, but strings and (full) configuration
* descriptors are built on demand. For now we do either full CDC, or
- * our simple subset.
+ * our simple subset, with RNDIS as an optional second configuration.
+ *
+ * RNDIS includes some CDC ACM descriptors ... like CDC Ethernet. But
+ * the class descriptors match a modem (they're ignored; it's really just
+ * Ethernet functionality), they don't need the NOP altsetting, and the
+ * status transfer endpoint isn't optional.
*/
#define STRING_MANUFACTURER 1
@@ -264,22 +309,28 @@ static char host_addr[18];
#define STRING_ETHADDR 3
#define STRING_DATA 4
#define STRING_CONTROL 5
+#define STRING_RNDIS_CONTROL 6
#define STRING_CDC 7
#define STRING_SUBSET 8
+#define STRING_RNDIS 9
#define STRING_SERIALNUMBER 10
-/* holds our biggest descriptor */
+/* holds our biggest descriptor (or RNDIS response) */
#define USB_BUFSIZ 256
/*
- * This device advertises one configuration, eth_config,
- * on hardware supporting at least two configs.
+ * This device advertises one configuration, eth_config, unless RNDIS
+ * is enabled (rndis_config) on hardware supporting at least two configs.
+ *
+ * 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 */
+#define DEV_RNDIS_CONFIG_VALUE 2 /* rndis; optional */
static struct usb_device_descriptor
device_desc = {
@@ -320,11 +371,38 @@ eth_config = {
.bMaxPower = 1,
};
+#ifdef CONFIG_USB_ETH_RNDIS
+static struct usb_config_descriptor
+rndis_config = {
+ .bLength = sizeof rndis_config,
+ .bDescriptorType = USB_DT_CONFIG,
+
+ /* compute wTotalLength on the fly */
+ .bNumInterfaces = 2,
+ .bConfigurationValue = DEV_RNDIS_CONFIG_VALUE,
+ .iConfiguration = STRING_RNDIS,
+ .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
+ .bMaxPower = 1,
+};
+#endif
+
/*
* Compared to the simple CDC subset, the full CDC Ethernet model adds
* three class descriptors, two interface descriptors, optional status
* endpoint. Both have a "data" interface and two bulk endpoints.
* There are also differences in how control requests are handled.
+ *
+ * RNDIS shares a lot with CDC-Ethernet, since it's a variant of the
+ * CDC-ACM (modem) spec. Unfortunately MSFT's RNDIS driver is buggy; it
+ * may hang or oops. Since bugfixes (or accurate specs, letting Linux
+ * work around those bugs) are unlikely to ever come from MSFT, you may
+ * wish to avoid using RNDIS.
+ *
+ * MCCI offers an alternative to RNDIS if you need to connect to Windows
+ * but have hardware that can't support CDC Ethernet. We add descriptors
+ * to present the CDC Subset as a (nonconformant) CDC MDLM variant called
+ * "SAFE". That borrows from both CDC Ethernet and CDC MDLM. You can
+ * get those drivers from MCCI, or bundled with various products.
*/
#ifdef DEV_CONFIG_CDC
@@ -343,6 +421,21 @@ control_intf = {
};
#endif
+#ifdef CONFIG_USB_ETH_RNDIS
+static const struct usb_interface_descriptor
+rndis_control_intf = {
+ .bLength = sizeof rndis_control_intf,
+ .bDescriptorType = USB_DT_INTERFACE,
+
+ .bInterfaceNumber = 0,
+ .bNumEndpoints = 1,
+ .bInterfaceClass = USB_CLASS_COMM,
+ .bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
+ .bInterfaceProtocol = USB_CDC_ACM_PROTO_VENDOR,
+ .iInterface = STRING_RNDIS_CONTROL,
+};
+#endif
+
static const struct usb_cdc_header_desc header_desc = {
.bLength = sizeof header_desc,
.bDescriptorType = USB_DT_CS_INTERFACE,
@@ -351,7 +444,7 @@ static const struct usb_cdc_header_desc header_desc = {
.bcdCDC = __constant_cpu_to_le16(0x0110),
};
-#if defined(DEV_CONFIG_CDC)
+#if defined(DEV_CONFIG_CDC) || defined(CONFIG_USB_ETH_RNDIS)
static const struct usb_cdc_union_desc union_desc = {
.bLength = sizeof union_desc,
@@ -362,7 +455,28 @@ static const struct usb_cdc_union_desc union_desc = {
.bSlaveInterface0 = 1, /* index of DATA interface */
};
-#endif /* CDC */
+#endif /* CDC || RNDIS */
+
+#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,
+
+ .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,
+
+ .bmCapabilities = 0x00,
+};
+
+#endif
#ifndef DEV_CONFIG_CDC
@@ -414,7 +528,7 @@ static const struct usb_cdc_ether_desc ether_desc = {
.bNumberPowerFilters = 0,
};
-#if defined(DEV_CONFIG_CDC)
+#if defined(DEV_CONFIG_CDC) || defined(CONFIG_USB_ETH_RNDIS)
/*
* include the status endpoint if we can, even where it's optional.
@@ -426,6 +540,9 @@ static const struct usb_cdc_ether_desc ether_desc = {
* if they ignore the connect/disconnect notifications that real aether
* can provide. more advanced cdc configurations might want to support
* encapsulated commands (vendor-specific, using control-OUT).
+ *
+ * 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 */
@@ -478,6 +595,26 @@ data_intf = {
#endif
+#ifdef CONFIG_USB_ETH_RNDIS
+
+/* RNDIS doesn't activate by changing to the "real" altsetting */
+
+static const struct usb_interface_descriptor
+rndis_data_intf = {
+ .bLength = sizeof rndis_data_intf,
+ .bDescriptorType = USB_DT_INTERFACE,
+
+ .bInterfaceNumber = 1,
+ .bAlternateSetting = 0,
+ .bNumEndpoints = 2,
+ .bInterfaceClass = USB_CLASS_CDC_DATA,
+ .bInterfaceSubClass = 0,
+ .bInterfaceProtocol = 0,
+ .iInterface = STRING_DATA,
+};
+
+#endif
+
#ifdef DEV_CONFIG_SUBSET
/*
@@ -558,12 +695,30 @@ static inline void fs_subset_descriptors(void)
#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 *) &call_mgmt_descriptor,
+ (struct usb_descriptor_header *) &acm_descriptor,
+ (struct usb_descriptor_header *) &union_desc,
+ (struct usb_descriptor_header *) &fs_status_desc,
+ /* data interface has no altsetting */
+ (struct usb_descriptor_header *) &rndis_data_intf,
+ (struct usb_descriptor_header *) &fs_source_desc,
+ (struct usb_descriptor_header *) &fs_sink_desc,
+ NULL,
+};
+#endif
+
/*
* usb 2.0 devices need to expose both high speed and full speed
* descriptors, unless they only run at full speed.
*/
-#if defined(DEV_CONFIG_CDC)
+#if defined(DEV_CONFIG_CDC) || defined(CONFIG_USB_ETH_RNDIS)
static struct usb_endpoint_descriptor
hs_status_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
@@ -640,6 +795,25 @@ static inline void hs_subset_descriptors(void)
#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 *) &call_mgmt_descriptor,
+ (struct usb_descriptor_header *) &acm_descriptor,
+ (struct usb_descriptor_header *) &union_desc,
+ (struct usb_descriptor_header *) &hs_status_desc,
+ /* data interface has no altsetting */
+ (struct usb_descriptor_header *) &rndis_data_intf,
+ (struct usb_descriptor_header *) &hs_source_desc,
+ (struct usb_descriptor_header *) &hs_sink_desc,
+ NULL,
+};
+#endif
+
+
/* maxpacket and other transfer characteristics vary by speed. */
static inline struct usb_endpoint_descriptor *
ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *hs,
@@ -675,6 +849,10 @@ static struct usb_string strings[] = {
#ifdef DEV_CONFIG_SUBSET
{ STRING_SUBSET, "CDC Ethernet Subset", },
#endif
+#ifdef CONFIG_USB_ETH_RNDIS
+ { STRING_RNDIS, "RNDIS", },
+ { STRING_RNDIS_CONTROL, "RNDIS Communications Control", },
+#endif
{ } /* end of list */
};
@@ -735,8 +913,20 @@ config_buf(struct usb_gadget *g, u8 *buf, u8 type, unsigned index, int is_otg)
if (index >= device_desc.bNumConfigurations)
return -EINVAL;
- config = ð_config;
- function = which_fn(eth);
+#ifdef CONFIG_USB_ETH_RNDIS
+ /*
+ * list the RNDIS config first, to make Microsoft's drivers
+ * happy. DOCSIS 1.0 needs this too.
+ */
+ if (device_desc.bNumConfigurations == 2 && index == 0) {
+ config = &rndis_config;
+ function = which_fn(rndis);
+ } else
+#endif
+ {
+ config = ð_config;
+ function = which_fn(eth);
+ }
/* for now, don't advertise srp-only devices */
if (!is_otg)
@@ -751,6 +941,7 @@ config_buf(struct usb_gadget *g, u8 *buf, u8 type, unsigned index, int is_otg)
/*-------------------------------------------------------------------------*/
+static void eth_start(struct eth_dev *dev, gfp_t gfp_flags);
static int alloc_requests(struct eth_dev *dev, unsigned n, gfp_t gfp_flags);
static int
@@ -759,8 +950,8 @@ 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 defined(DEV_CONFIG_CDC) || defined(CONFIG_USB_ETH_RNDIS)
+ /* status endpoint used for RNDIS and (optionally) CDC */
if (!subset_active(dev) && dev->status_ep) {
dev->status = ep_desc(gadget, &hs_status_desc,
&fs_status_desc);
@@ -785,6 +976,10 @@ set_ether_config(struct eth_dev *dev, gfp_t gfp_flags)
* 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.
+ *
+ * Strictly speaking RNDIS should work the same: activation is
+ * a side effect of setting a packet filter. Deactivation is
+ * from REMOTE_NDIS_HALT_MSG, reset from REMOTE_NDIS_RESET_MSG.
*/
if (!cdc_active(dev)) {
result = usb_ep_enable(dev->in_ep, dev->in);
@@ -815,6 +1010,12 @@ done:
(void) usb_ep_disable(dev->out_ep);
dev->in = NULL;
dev->out = NULL;
+ } else if (!cdc_active(dev)) {
+ /*
+ * activate non-CDC configs right away
+ * this isn't strictly according to the RNDIS spec
+ */
+ eth_start(dev, GFP_ATOMIC);
}
/* caller is responsible for cleanup on error */
@@ -828,6 +1029,8 @@ static void eth_reset_config(struct eth_dev *dev)
debug("%s\n", __func__);
+ rndis_uninit(dev->rndis_config);
+
/*
* disable endpoints, forcing (synchronous) completion of
* pending i/o. then free the requests.
@@ -850,6 +1053,7 @@ static void eth_reset_config(struct eth_dev *dev)
if (dev->status)
usb_ep_disable(dev->status_ep);
+ dev->rndis = 0;
dev->cdc_filter = 0;
dev->config = 0;
}
@@ -877,6 +1081,12 @@ static int eth_set_config(struct eth_dev *dev, unsigned number,
case DEV_CONFIG_VALUE:
result = set_ether_config(dev, gfp_flags);
break;
+#ifdef CONFIG_USB_ETH_RNDIS
+ case DEV_RNDIS_CONFIG_VALUE:
+ dev->rndis = 1;
+ result = set_ether_config(dev, gfp_flags);
+ break;
+#endif
default:
result = -EINVAL;
/* FALL THROUGH */
@@ -910,7 +1120,10 @@ static int eth_set_config(struct eth_dev *dev, unsigned number,
dev->config = number;
printf("%s speed config #%d: %d mA, %s, using %s\n",
speed, number, power, driver_desc,
- (cdc_active(dev) ? "CDC Ethernet"
+ rndis_active(dev)
+ ? "RNDIS"
+ : (cdc_active(dev)
+ ? "CDC Ethernet"
: "CDC Ethernet Subset"));
}
return result;
@@ -923,7 +1136,7 @@ static int eth_set_config(struct eth_dev *dev, unsigned number,
/*
* 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
+ * report completion of some encapsulated command (as used in RNDIS). 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.
*/
@@ -1014,6 +1227,30 @@ static void eth_setup_complete(struct usb_ep *ep, struct usb_request *req)
req->status, req->actual, req->length);
}
+#ifdef CONFIG_USB_ETH_RNDIS
+
+static void rndis_response_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ if (req->status || req->actual != req->length)
+ debug("rndis response complete --> %d, %d/%d\n",
+ req->status, req->actual, req->length);
+
+ /* done sending after USB_CDC_GET_ENCAPSULATED_RESPONSE */
+}
+
+static void rndis_command_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ struct eth_dev *dev = ep->driver_data;
+ int status;
+
+ /* received RNDIS command from USB_CDC_SEND_ENCAPSULATED_COMMAND */
+ status = rndis_msg_parser(dev->rndis_config, (u8 *) req->buf);
+ if (status < 0)
+ error("%s: rndis parse error %d", __func__, status);
+}
+
+#endif /* RNDIS */
+
/*
* The setup() callback implements all the ep0 functionality that's not
* handled lower down. CDC has a number of less-common features:
@@ -1126,6 +1363,7 @@ eth_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
usb_ep_disable(dev->status_ep);
usb_ep_enable(dev->status_ep, dev->status);
}
+
value = 0;
break;
case 1: /* data intf */
@@ -1147,8 +1385,8 @@ eth_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
dev->cdc_filter = DEFAULT_FILTER;
if (dev->status)
issue_start_status(dev);
+ eth_start(dev, GFP_ATOMIC);
}
-
value = 0;
break;
}
@@ -1167,11 +1405,11 @@ done_set_intf:
|| !dev->config
|| wIndex > 1)
break;
- if (!(cdc_active(dev)) && wIndex != 0)
+ if (!(cdc_active(dev) || rndis_active(dev)) && wIndex != 0)
break;
/* for CDC, iff carrier is on, data interface is active. */
- if (wIndex != 1)
+ if (rndis_active(dev) || wIndex != 1)
*(u8 *)req->buf = 0;
else {
/* *(u8 *)req->buf = netif_carrier_ok (dev->net) ? 1 : 0; */
@@ -1207,6 +1445,49 @@ done_set_intf:
#endif /* DEV_CONFIG_CDC */
+#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.
+ */
+ case USB_CDC_SEND_ENCAPSULATED_COMMAND:
+ if (ctrl->bRequestType != (USB_TYPE_CLASS|USB_RECIP_INTERFACE)
+ || !rndis_active(dev)
+ || wLength > USB_BUFSIZ
+ || wValue
+ || rndis_control_intf.bInterfaceNumber
+ != wIndex)
+ break;
+ /* read the request, then process it */
+ value = wLength;
+ 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
+ && rndis_active(dev)
+ /* && wLength >= 0x0400 */
+ && !wValue
+ && rndis_control_intf.bInterfaceNumber
+ == wIndex) {
+ u8 *buf;
+ u32 n;
+
+ /* return the result */
+ buf = rndis_get_next_response(dev->rndis_config, &n);
+ if (buf) {
+ memcpy(req->buf, buf, n);
+ req->complete = rndis_response_complete;
+ rndis_free_response(dev->rndis_config, buf);
+ value = n;
+ }
+ /* else stalls ... spec says to avoid that */
+ }
+ break;
+#endif /* RNDIS */
+
default:
debug("unknown control req%02x.%02x v%04x i%04x l%d\n",
ctrl->bRequestType, ctrl->bRequest,
@@ -1248,17 +1529,24 @@ static int rx_submit(struct eth_dev *dev, struct usb_request *req,
* 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,
+ * but means receivers can't recover synch on their own.
*/
debug("%s\n", __func__);
size = (ETHER_HDR_SIZE + dev->mtu + RX_EXTRA);
size += dev->out_ep->maxpacket - 1;
+ if (rndis_active(dev))
+ size += sizeof(struct rndis_packet_msg_type);
size -= size % dev->out_ep->maxpacket;
/*
* Some platforms perform better when IP packets are aligned,
- * but on at least one, checksumming fails otherwise.
+ * but on at least one, checksumming fails otherwise. Note:
+ * RNDIS headers involve variable numbers of LE32 values.
*/
req->buf = (u8 *) NetRxPackets[0];
@@ -1281,6 +1569,22 @@ static void rx_complete(struct usb_ep *ep, struct usb_request *req)
switch (req->status) {
/* normal completion */
case 0:
+ if (rndis_active(dev)) {
+ /* we know MaxPacketsPerTransfer == 1 here */
+ int length = rndis_rm_hdr(req->buf, req->actual);
+ if (length < 0)
+ goto length_err;
+ req->length -= length;
+ req->actual -= length;
+ }
+ if (req->actual < ETH_HLEN || ETH_FRAME_LEN < req->actual) {
+length_err:
+ dev->stats.rx_errors++;
+ dev->stats.rx_length_errors++;
+ debug("rx length %d\n", req->length);
+ break;
+ }
+
dev->stats.rx_packets++;
dev->stats.rx_bytes += req->length;
break;
@@ -1470,9 +1774,11 @@ drop:
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__);
+ rndis_deregister(dev->rndis_config);
+ rndis_exit();
/* we've already been disconnected ... no i/o is active */
if (dev->req) {
@@ -1504,6 +1810,7 @@ static void eth_unbind(struct usb_gadget *gadget)
static void eth_disconnect(struct usb_gadget *gadget)
{
eth_reset_config(get_gadget_data(gadget));
+ /* FIXME RNDIS should enter RNDIS_UNINITIALIZED */
}
static void eth_suspend(struct usb_gadget *gadget)
@@ -1518,6 +1825,115 @@ static void eth_resume(struct usb_gadget *gadget)
/*-------------------------------------------------------------------------*/
+#ifdef CONFIG_USB_ETH_RNDIS
+
+/*
+ * The interrupt endpoint is used in RNDIS to notify the host when messages
+ * other than data packets are available ... notably the REMOTE_NDIS_*_CMPLT
+ * messages, but also REMOTE_NDIS_INDICATE_STATUS_MSG and potentially even
+ * REMOTE_NDIS_KEEPALIVE_MSG.
+ *
+ * The RNDIS control queue is processed by GET_ENCAPSULATED_RESPONSE, and
+ * normally just one notification will be queued.
+ */
+
+static void rndis_control_ack_complete(struct usb_ep *ep,
+ struct usb_request *req)
+{
+ struct eth_dev *dev = ep->driver_data;
+
+ debug("%s...\n", __func__);
+ if (req->status || req->actual != req->length)
+ debug("rndis control ack complete --> %d, %d/%d\n",
+ req->status, req->actual, req->length);
+
+ if (!l_ethdev.network_started) {
+ if (rndis_get_state(dev->rndis_config)
+ == RNDIS_DATA_INITIALIZED) {
+ l_ethdev.network_started = 1;
+ printf("USB RNDIS network up!\n");
+ }
+ }
+
+ req->context = NULL;
+
+ if (req != dev->stat_req)
+ usb_ep_free_request(ep, req);
+}
+
+static char rndis_resp_buf[8] __attribute__((aligned(sizeof(__le32))));
+
+static int rndis_control_ack(struct eth_device *net)
+{
+ struct eth_dev *dev = &l_ethdev;
+ int length;
+ struct usb_request *resp = dev->stat_req;
+
+ /* in case RNDIS calls this after disconnect */
+ if (!dev->status) {
+ debug("status ENODEV\n");
+ return -ENODEV;
+ }
+
+ /* in case queue length > 1 */
+ if (resp->context) {
+ resp = usb_ep_alloc_request(dev->status_ep, GFP_ATOMIC);
+ if (!resp)
+ return -ENOMEM;
+ resp->buf = rndis_resp_buf;
+ }
+
+ /*
+ * Send RNDIS RESPONSE_AVAILABLE notification;
+ * USB_CDC_NOTIFY_RESPONSE_AVAILABLE should work too
+ */
+ resp->length = 8;
+ resp->complete = rndis_control_ack_complete;
+ resp->context = dev;
+
+ *((__le32 *) resp->buf) = __constant_cpu_to_le32(1);
+ *((__le32 *) (resp->buf + 4)) = __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;
+}
+
+#else
+
+#define rndis_control_ack NULL
+
+#endif /* RNDIS */
+
+static void eth_start(struct eth_dev *dev, gfp_t gfp_flags)
+{
+ if (rndis_active(dev)) {
+ rndis_set_param_medium(dev->rndis_config,
+ NDIS_MEDIUM_802_3,
+ BITRATE(dev->gadget)/100);
+ rndis_signal_connect(dev->rndis_config);
+ }
+}
+
+static int eth_stop(struct eth_dev *dev)
+{
+ if (rndis_active(dev)) {
+ rndis_set_param_medium(dev->rndis_config, NDIS_MEDIUM_802_3, 0);
+ rndis_signal_disconnect(dev->rndis_config);
+
+ rndis_uninit(dev->rndis_config);
+ dev->rndis = 0;
+ }
+
+ return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
static int is_eth_addr_valid(char *str)
{
if (strlen(str) == 17) {
@@ -1579,8 +1995,9 @@ static int get_ether_addr(const char *str, u8 *dev_addr)
static int eth_bind(struct usb_gadget *gadget)
{
struct eth_dev *dev = &l_ethdev;
- u8 cdc = 1, zlp = 1;
+ u8 cdc = 1, zlp = 1, rndis = 1;
struct usb_ep *in_ep, *out_ep, *status_ep = NULL;
+ int status = -ENOMEM;
int gcnum;
u8 tmp[7];
@@ -1588,6 +2005,9 @@ static int eth_bind(struct usb_gadget *gadget)
#ifndef DEV_CONFIG_CDC
cdc = 0;
#endif
+#ifndef CONFIG_USB_ETH_RNDIS
+ rndis = 0;
+#endif
/*
* Because most host side USB stacks handle CDC Ethernet, that
* standard protocol is _strongly_ preferred for interop purposes.
@@ -1602,6 +2022,7 @@ static int eth_bind(struct usb_gadget *gadget)
} else if (gadget_is_sh(gadget)) {
/* sh doesn't support multiple interfaces or configs */
cdc = 0;
+ rndis = 0;
} else if (gadget_is_sa1100(gadget)) {
/* hardware can't write zlps */
zlp = 0;
@@ -1627,22 +2048,45 @@ static int eth_bind(struct usb_gadget *gadget)
}
/*
- * 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 there's an RNDIS configuration, that's what Windows wants to
+ * be using ... so use these product IDs here and in the "linux.inf"
+ * needed to install MSFT drivers. Current Linux kernels will use
+ * the second configuration if it's CDC Ethernet, and need some help
+ * to choose the right configuration otherwise.
*/
- if (!cdc) {
+ if (rndis) {
+#if defined(CONFIG_USB_RNDIS_VENDOR_ID) && defined(CONFIG_USB_RNDIS_PRODUCT_ID)
device_desc.idVendor =
- __constant_cpu_to_le16(SIMPLE_VENDOR_NUM);
+ __constant_cpu_to_le16(CONFIG_USB_RNDIS_VENDOR_ID);
device_desc.idProduct =
- __constant_cpu_to_le16(SIMPLE_PRODUCT_NUM);
- }
+ __constant_cpu_to_le16(CONFIG_USB_RNDIS_PRODUCT_ID);
+#else
+ device_desc.idVendor =
+ __constant_cpu_to_le16(RNDIS_VENDOR_NUM);
+ device_desc.idProduct =
+ __constant_cpu_to_le16(RNDIS_PRODUCT_NUM);
+#endif
+ sprintf(product_desc, "RNDIS/%s", driver_desc);
- /* support optional vendor/distro customization */
+ /*
+ * 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.)
+ */
+ } else {
#if defined(CONFIG_USB_CDC_VENDOR_ID) && defined(CONFIG_USB_CDC_PRODUCT_ID)
- device_desc.idVendor = cpu_to_le16(CONFIG_USB_CDC_VENDOR_ID);
- device_desc.idProduct = cpu_to_le16(CONFIG_USB_CDC_PRODUCT_ID);
+ device_desc.idVendor = cpu_to_le16(CONFIG_USB_CDC_VENDOR_ID);
+ device_desc.idProduct = cpu_to_le16(CONFIG_USB_CDC_PRODUCT_ID);
+#else
+ if (!cdc) {
+ device_desc.idVendor =
+ __constant_cpu_to_le16(SIMPLE_VENDOR_NUM);
+ device_desc.idProduct =
+ __constant_cpu_to_le16(SIMPLE_PRODUCT_NUM);
+ }
#endif
+ }
+ /* support optional vendor/distro customization */
if (bcdDevice)
device_desc.bcdDevice = cpu_to_le16(bcdDevice);
if (iManufacturer)
@@ -1670,18 +2114,23 @@ autoconf_fail:
goto autoconf_fail;
out_ep->driver_data = out_ep; /* claim */
-#if defined(DEV_CONFIG_CDC)
+#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.
*/
- if (cdc) {
+ if (cdc || rndis) {
status_ep = usb_ep_autoconfig(gadget, &fs_status_desc);
if (status_ep) {
status_ep->driver_data = status_ep; /* claim */
+ } else if (rndis) {
+ error("can't run RNDIS on %s", gadget->name);
+ return -ENODEV;
+#ifdef DEV_CONFIG_CDC
} else if (cdc) {
control_intf.bNumEndpoints = 0;
/* FIXME remove endpoint from descriptor list */
+#endif
}
}
#endif
@@ -1702,8 +2151,14 @@ autoconf_fail:
device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket;
usb_gadget_set_selfpowered(gadget);
+ /* For now RNDIS is always a second config */
+ if (rndis)
+ device_desc.bNumConfigurations = 2;
+
if (gadget_is_dualspeed(gadget)) {
- if (!cdc)
+ if (rndis)
+ dev_qualifier.bNumConfigurations = 2;
+ else if (!cdc)
dev_qualifier.bDeviceClass = USB_CLASS_VENDOR_SPEC;
/* assumes ep0 uses the same value for both speeds ... */
@@ -1714,7 +2169,7 @@ autoconf_fail:
fs_source_desc.bEndpointAddress;
hs_sink_desc.bEndpointAddress =
fs_sink_desc.bEndpointAddress;
-#if defined(DEV_CONFIG_CDC)
+#if defined(DEV_CONFIG_CDC) || defined(CONFIG_USB_ETH_RNDIS)
if (status_ep)
hs_status_desc.bEndpointAddress =
fs_status_desc.bEndpointAddress;
@@ -1725,8 +2180,14 @@ autoconf_fail:
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
}
+
+ /* network device setup */
dev->net = &l_netdev;
dev->cdc = cdc;
@@ -1738,7 +2199,7 @@ autoconf_fail:
/*
* Module params for these addresses should come from ID proms.
- * The host side address is used with CDC, and commonly
+ * The host side address is used with CDC and RNDIS, 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
* thing didn't, Sharp never assigned those addresses on Zaurii.
@@ -1755,21 +2216,12 @@ autoconf_fail:
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 " : "",
- 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]);
-
- 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]);
+ if (rndis) {
+ status = rndis_init();
+ if (status < 0) {
+ error("can't init RNDIS, %d", status);
+ goto fail;
+ }
}
/*
@@ -1786,7 +2238,7 @@ autoconf_fail:
dev->req->complete = eth_setup_complete;
/* ... and maybe likewise for status transfer */
-#if defined(DEV_CONFIG_CDC)
+#if defined(DEV_CONFIG_CDC) || defined(CONFIG_USB_ETH_RNDIS)
if (dev->status_ep) {
dev->stat_req = usb_ep_alloc_request(dev->status_ep,
GFP_KERNEL);
@@ -1810,14 +2262,60 @@ autoconf_fail:
* - iff DATA transfer is active, carrier is "on"
* - tx queueing enabled if open *and* carrier is "on"
*/
+
+ printf("using %s, OUT %s IN %s%s%s\n", gadget->name,
+ out_ep->name, in_ep->name,
+ status_ep ? " STATUS " : "",
+ 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]);
+
+ if (cdc || rndis)
+ 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]);
+
+ if (rndis) {
+ u32 vendorID = 0;
+
+ /* FIXME RNDIS vendor id == "vendor NIC code" == ? */
+
+ dev->rndis_config = rndis_register(rndis_control_ack);
+ if (dev->rndis_config < 0) {
+fail0:
+ eth_unbind(gadget);
+ debug("RNDIS setup failed\n");
+ 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, dev->mtu,
+ &dev->stats, &dev->cdc_filter))
+ goto fail0;
+ if (rndis_set_param_vendor(dev->rndis_config, vendorID,
+ manufacturer))
+ goto fail0;
+ if (rndis_set_param_medium(dev->rndis_config,
+ NDIS_MEDIUM_802_3, 0))
+ goto fail0;
+ printf("RNDIS ready\n");
+ }
return 0;
fail:
- error("%s failed", __func__);
+ error("%s failed, status = %d", __func__, status);
eth_unbind(gadget);
- return -ENOMEM;
+ return status;
}
+/*-------------------------------------------------------------------------*/
+
static int usb_eth_init(struct eth_device *netdev, bd_t *bd)
{
struct eth_dev *dev = &l_ethdev;
@@ -1890,6 +2388,7 @@ static int usb_eth_send(struct eth_device *netdev,
volatile void *packet, int length)
{
int retval;
+ void *rndis_pkt = NULL;
struct eth_dev *dev = &l_ethdev;
struct usb_request *req = dev->tx_req;
unsigned long ts;
@@ -1897,6 +2396,20 @@ static int usb_eth_send(struct eth_device *netdev,
debug("%s:...\n", __func__);
+ /* new buffer is needed to include RNDIS header */
+ if (rndis_active(dev)) {
+ rndis_pkt = malloc(length +
+ sizeof(struct rndis_packet_msg_type));
+ if (!rndis_pkt) {
+ error("No memory to alloc RNDIS packet");
+ goto drop;
+ }
+ rndis_add_hdr(rndis_pkt, length);
+ memcpy(rndis_pkt + sizeof(struct rndis_packet_msg_type),
+ (void *)packet, length);
+ packet = rndis_pkt;
+ length += sizeof(struct rndis_packet_msg_type);
+ }
req->buf = (void *)packet;
req->context = NULL;
req->complete = tx_complete;
@@ -1932,8 +2445,13 @@ static int usb_eth_send(struct eth_device *netdev,
}
usb_gadget_handle_interrupts();
}
+ if (rndis_pkt)
+ free(rndis_pkt);
return 0;
+drop:
+ dev->stats.tx_dropped++;
+ return -ENOMEM;
}
static int usb_eth_recv(struct eth_device *netdev)
@@ -1968,6 +2486,8 @@ void usb_eth_halt(struct eth_device *netdev)
if (!dev->gadget)
return;
+ eth_stop(dev);
+
usb_gadget_disconnect(dev->gadget);
/* Clear pending interrupt */
diff --git a/drivers/usb/gadget/ndis.h b/drivers/usb/gadget/ndis.h
new file mode 100644
index 0000000..753838f
--- /dev/null
+++ b/drivers/usb/gadget/ndis.h
@@ -0,0 +1,217 @@
+/*
+ * ndis.h
+ *
+ * ntddndis.h modified by Benedikt Spranger <b.spranger at pengutronix.de>
+ *
+ * Thanks to the cygwin development team,
+ * espacially to Casper S. Hornstrup <chorns at users.sourceforge.net>
+ *
+ * THIS SOFTWARE IS NOT COPYRIGHTED
+ *
+ * This source code is offered for use in the public domain. You may
+ * use, modify or distribute it freely.
+ *
+ * This code is distributed in the hope that it will be useful but
+ * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
+ * DISCLAIMED. This includes but is not limited to warranties of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ */
+
+#ifndef _USBGADGET_NDIS_H
+#define _USBGADGET_NDIS_H
+
+
+#define NDIS_STATUS_MULTICAST_FULL 0xC0010009
+#define NDIS_STATUS_MULTICAST_EXISTS 0xC001000A
+#define NDIS_STATUS_MULTICAST_NOT_FOUND 0xC001000B
+
+enum NDIS_DEVICE_POWER_STATE {
+ NdisDeviceStateUnspecified = 0,
+ NdisDeviceStateD0,
+ NdisDeviceStateD1,
+ NdisDeviceStateD2,
+ NdisDeviceStateD3,
+ NdisDeviceStateMaximum
+};
+
+struct NDIS_PM_WAKE_UP_CAPABILITIES {
+ enum NDIS_DEVICE_POWER_STATE MinMagicPacketWakeUp;
+ enum NDIS_DEVICE_POWER_STATE MinPatternWakeUp;
+ enum NDIS_DEVICE_POWER_STATE MinLinkChangeWakeUp;
+};
+
+/* NDIS_PNP_CAPABILITIES.Flags constants */
+#define NDIS_DEVICE_WAKE_UP_ENABLE 0x00000001
+#define NDIS_DEVICE_WAKE_ON_PATTERN_MATCH_ENABLE 0x00000002
+#define NDIS_DEVICE_WAKE_ON_MAGIC_PACKET_ENABLE 0x00000004
+
+struct NDIS_PNP_CAPABILITIES {
+ __le32 Flags;
+ struct NDIS_PM_WAKE_UP_CAPABILITIES WakeUpCapabilities;
+};
+
+struct NDIS_PM_PACKET_PATTERN {
+ __le32 Priority;
+ __le32 Reserved;
+ __le32 MaskSize;
+ __le32 PatternOffset;
+ __le32 PatternSize;
+ __le32 PatternFlags;
+};
+
+
+/* Required Object IDs (OIDs) */
+#define OID_GEN_SUPPORTED_LIST 0x00010101
+#define OID_GEN_HARDWARE_STATUS 0x00010102
+#define OID_GEN_MEDIA_SUPPORTED 0x00010103
+#define OID_GEN_MEDIA_IN_USE 0x00010104
+#define OID_GEN_MAXIMUM_LOOKAHEAD 0x00010105
+#define OID_GEN_MAXIMUM_FRAME_SIZE 0x00010106
+#define OID_GEN_LINK_SPEED 0x00010107
+#define OID_GEN_TRANSMIT_BUFFER_SPACE 0x00010108
+#define OID_GEN_RECEIVE_BUFFER_SPACE 0x00010109
+#define OID_GEN_TRANSMIT_BLOCK_SIZE 0x0001010A
+#define OID_GEN_RECEIVE_BLOCK_SIZE 0x0001010B
+#define OID_GEN_VENDOR_ID 0x0001010C
+#define OID_GEN_VENDOR_DESCRIPTION 0x0001010D
+#define OID_GEN_CURRENT_PACKET_FILTER 0x0001010E
+#define OID_GEN_CURRENT_LOOKAHEAD 0x0001010F
+#define OID_GEN_DRIVER_VERSION 0x00010110
+#define OID_GEN_MAXIMUM_TOTAL_SIZE 0x00010111
+#define OID_GEN_PROTOCOL_OPTIONS 0x00010112
+#define OID_GEN_MAC_OPTIONS 0x00010113
+#define OID_GEN_MEDIA_CONNECT_STATUS 0x00010114
+#define OID_GEN_MAXIMUM_SEND_PACKETS 0x00010115
+#define OID_GEN_VENDOR_DRIVER_VERSION 0x00010116
+#define OID_GEN_SUPPORTED_GUIDS 0x00010117
+#define OID_GEN_NETWORK_LAYER_ADDRESSES 0x00010118
+#define OID_GEN_TRANSPORT_HEADER_OFFSET 0x00010119
+#define OID_GEN_MACHINE_NAME 0x0001021A
+#define OID_GEN_RNDIS_CONFIG_PARAMETER 0x0001021B
+#define OID_GEN_VLAN_ID 0x0001021C
+
+/* Optional OIDs */
+#define OID_GEN_MEDIA_CAPABILITIES 0x00010201
+#define OID_GEN_PHYSICAL_MEDIUM 0x00010202
+
+/* Required statistics OIDs */
+#define OID_GEN_XMIT_OK 0x00020101
+#define OID_GEN_RCV_OK 0x00020102
+#define OID_GEN_XMIT_ERROR 0x00020103
+#define OID_GEN_RCV_ERROR 0x00020104
+#define OID_GEN_RCV_NO_BUFFER 0x00020105
+
+/* Optional statistics OIDs */
+#define OID_GEN_DIRECTED_BYTES_XMIT 0x00020201
+#define OID_GEN_DIRECTED_FRAMES_XMIT 0x00020202
+#define OID_GEN_MULTICAST_BYTES_XMIT 0x00020203
+#define OID_GEN_MULTICAST_FRAMES_XMIT 0x00020204
+#define OID_GEN_BROADCAST_BYTES_XMIT 0x00020205
+#define OID_GEN_BROADCAST_FRAMES_XMIT 0x00020206
+#define OID_GEN_DIRECTED_BYTES_RCV 0x00020207
+#define OID_GEN_DIRECTED_FRAMES_RCV 0x00020208
+#define OID_GEN_MULTICAST_BYTES_RCV 0x00020209
+#define OID_GEN_MULTICAST_FRAMES_RCV 0x0002020A
+#define OID_GEN_BROADCAST_BYTES_RCV 0x0002020B
+#define OID_GEN_BROADCAST_FRAMES_RCV 0x0002020C
+#define OID_GEN_RCV_CRC_ERROR 0x0002020D
+#define OID_GEN_TRANSMIT_QUEUE_LENGTH 0x0002020E
+#define OID_GEN_GET_TIME_CAPS 0x0002020F
+#define OID_GEN_GET_NETCARD_TIME 0x00020210
+#define OID_GEN_NETCARD_LOAD 0x00020211
+#define OID_GEN_DEVICE_PROFILE 0x00020212
+#define OID_GEN_INIT_TIME_MS 0x00020213
+#define OID_GEN_RESET_COUNTS 0x00020214
+#define OID_GEN_MEDIA_SENSE_COUNTS 0x00020215
+#define OID_GEN_FRIENDLY_NAME 0x00020216
+#define OID_GEN_MINIPORT_INFO 0x00020217
+#define OID_GEN_RESET_VERIFY_PARAMETERS 0x00020218
+
+/* IEEE 802.3 (Ethernet) OIDs */
+#define NDIS_802_3_MAC_OPTION_PRIORITY 0x00000001
+
+#define OID_802_3_PERMANENT_ADDRESS 0x01010101
+#define OID_802_3_CURRENT_ADDRESS 0x01010102
+#define OID_802_3_MULTICAST_LIST 0x01010103
+#define OID_802_3_MAXIMUM_LIST_SIZE 0x01010104
+#define OID_802_3_MAC_OPTIONS 0x01010105
+#define OID_802_3_RCV_ERROR_ALIGNMENT 0x01020101
+#define OID_802_3_XMIT_ONE_COLLISION 0x01020102
+#define OID_802_3_XMIT_MORE_COLLISIONS 0x01020103
+#define OID_802_3_XMIT_DEFERRED 0x01020201
+#define OID_802_3_XMIT_MAX_COLLISIONS 0x01020202
+#define OID_802_3_RCV_OVERRUN 0x01020203
+#define OID_802_3_XMIT_UNDERRUN 0x01020204
+#define OID_802_3_XMIT_HEARTBEAT_FAILURE 0x01020205
+#define OID_802_3_XMIT_TIMES_CRS_LOST 0x01020206
+#define OID_802_3_XMIT_LATE_COLLISIONS 0x01020207
+
+/* OID_GEN_MINIPORT_INFO constants */
+#define NDIS_MINIPORT_BUS_MASTER 0x00000001
+#define NDIS_MINIPORT_WDM_DRIVER 0x00000002
+#define NDIS_MINIPORT_SG_LIST 0x00000004
+#define NDIS_MINIPORT_SUPPORTS_MEDIA_QUERY 0x00000008
+#define NDIS_MINIPORT_INDICATES_PACKETS 0x00000010
+#define NDIS_MINIPORT_IGNORE_PACKET_QUEUE 0x00000020
+#define NDIS_MINIPORT_IGNORE_REQUEST_QUEUE 0x00000040
+#define NDIS_MINIPORT_IGNORE_TOKEN_RING_ERRORS 0x00000080
+#define NDIS_MINIPORT_INTERMEDIATE_DRIVER 0x00000100
+#define NDIS_MINIPORT_IS_NDIS_5 0x00000200
+#define NDIS_MINIPORT_IS_CO 0x00000400
+#define NDIS_MINIPORT_DESERIALIZE 0x00000800
+#define NDIS_MINIPORT_REQUIRES_MEDIA_POLLING 0x00001000
+#define NDIS_MINIPORT_SUPPORTS_MEDIA_SENSE 0x00002000
+#define NDIS_MINIPORT_NETBOOT_CARD 0x00004000
+#define NDIS_MINIPORT_PM_SUPPORTED 0x00008000
+#define NDIS_MINIPORT_SUPPORTS_MAC_ADDRESS_OVERWRITE 0x00010000
+#define NDIS_MINIPORT_USES_SAFE_BUFFER_APIS 0x00020000
+#define NDIS_MINIPORT_HIDDEN 0x00040000
+#define NDIS_MINIPORT_SWENUM 0x00080000
+#define NDIS_MINIPORT_SURPRISE_REMOVE_OK 0x00100000
+#define NDIS_MINIPORT_NO_HALT_ON_SUSPEND 0x00200000
+#define NDIS_MINIPORT_HARDWARE_DEVICE 0x00400000
+#define NDIS_MINIPORT_SUPPORTS_CANCEL_SEND_PACKETS 0x00800000
+#define NDIS_MINIPORT_64BITS_DMA 0x01000000
+
+#define NDIS_MEDIUM_802_3 0x00000000
+#define NDIS_MEDIUM_802_5 0x00000001
+#define NDIS_MEDIUM_FDDI 0x00000002
+#define NDIS_MEDIUM_WAN 0x00000003
+#define NDIS_MEDIUM_LOCAL_TALK 0x00000004
+#define NDIS_MEDIUM_DIX 0x00000005
+#define NDIS_MEDIUM_ARCENT_RAW 0x00000006
+#define NDIS_MEDIUM_ARCENT_878_2 0x00000007
+#define NDIS_MEDIUM_ATM 0x00000008
+#define NDIS_MEDIUM_WIRELESS_LAN 0x00000009
+#define NDIS_MEDIUM_IRDA 0x0000000A
+#define NDIS_MEDIUM_BPC 0x0000000B
+#define NDIS_MEDIUM_CO_WAN 0x0000000C
+#define NDIS_MEDIUM_1394 0x0000000D
+
+#define NDIS_PACKET_TYPE_DIRECTED 0x00000001
+#define NDIS_PACKET_TYPE_MULTICAST 0x00000002
+#define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004
+#define NDIS_PACKET_TYPE_BROADCAST 0x00000008
+#define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
+#define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020
+#define NDIS_PACKET_TYPE_SMT 0x00000040
+#define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080
+#define NDIS_PACKET_TYPE_GROUP 0x00000100
+#define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
+#define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400
+#define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800
+
+#define NDIS_MEDIA_STATE_CONNECTED 0x00000000
+#define NDIS_MEDIA_STATE_DISCONNECTED 0x00000001
+
+#define NDIS_MAC_OPTION_COPY_LOOKAHEAD_DATA 0x00000001
+#define NDIS_MAC_OPTION_RECEIVE_SERIALIZED 0x00000002
+#define NDIS_MAC_OPTION_TRANSFERS_NOT_PEND 0x00000004
+#define NDIS_MAC_OPTION_NO_LOOPBACK 0x00000008
+#define NDIS_MAC_OPTION_FULL_DUPLEX 0x00000010
+#define NDIS_MAC_OPTION_EOTX_INDICATION 0x00000020
+#define NDIS_MAC_OPTION_8021P_PRIORITY 0x00000040
+#define NDIS_MAC_OPTION_RESERVED 0x80000000
+
+#endif /* _USBGADGET_NDIS_H */
diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c
new file mode 100644
index 0000000..3e3f740
--- /dev/null
+++ b/drivers/usb/gadget/rndis.c
@@ -0,0 +1,1312 @@
+/*
+ * RNDIS MSG parser
+ *
+ * Authors: Benedikt Spranger, Pengutronix
+ * Robert Schwebel, Pengutronix
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This software was originally developed in conformance with
+ * Microsoft's Remote NDIS Specification License Agreement.
+ *
+ * 03/12/2004 Kai-Uwe Bloem <linux-development at auerswald.de>
+ * Fixed message length bug in init_response
+ *
+ * 03/25/2004 Kai-Uwe Bloem <linux-development at auerswald.de>
+ * Fixed rndis_rm_hdr length bug.
+ *
+ * Copyright (C) 2004 by David Brownell
+ * updates to merge with Linux 2.6, better match RNDIS spec
+ */
+
+#include <common.h>
+#include <net.h>
+#include <malloc.h>
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+
+#include <asm/byteorder.h>
+#include <asm/unaligned.h>
+#include <asm/errno.h>
+
+#undef RNDIS_PM
+#undef RNDIS_WAKEUP
+#undef VERBOSE
+
+#include "rndis.h"
+
+#define ETH_ALEN 6 /* Octets in one ethernet addr */
+#define ETH_HLEN 14 /* Total octets in header. */
+#define ETH_ZLEN 60 /* Min. octets in frame sans FCS */
+#define ETH_DATA_LEN 1500 /* Max. octets in payload */
+#define ETH_FRAME_LEN PKTSIZE_ALIGN /* Max. octets in frame sans FCS */
+#define ETH_FCS_LEN 4 /* Octets in the FCS */
+#define ENOTSUPP 524 /* Operation is not supported */
+
+
+/*
+ * The driver for your USB chip needs to support ep0 OUT to work with
+ * RNDIS, plus all three CDC Ethernet endpoints (interrupt not optional).
+ *
+ * Windows hosts need an INF file like Documentation/usb/linux.inf
+ * and will be happier if you provide the host_addr module parameter.
+ */
+
+#define RNDIS_MAX_CONFIGS 1
+
+static rndis_params rndis_per_dev_params[RNDIS_MAX_CONFIGS];
+
+/* Driver Version */
+static const __le32 rndis_driver_version = __constant_cpu_to_le32(1);
+
+/* Function Prototypes */
+static rndis_resp_t *rndis_add_response(int configNr, u32 length);
+
+
+/* supported OIDs */
+static const u32 oid_supported_list[] = {
+ /* the general stuff */
+ OID_GEN_SUPPORTED_LIST,
+ OID_GEN_HARDWARE_STATUS,
+ OID_GEN_MEDIA_SUPPORTED,
+ OID_GEN_MEDIA_IN_USE,
+ OID_GEN_MAXIMUM_FRAME_SIZE,
+ OID_GEN_LINK_SPEED,
+ OID_GEN_TRANSMIT_BLOCK_SIZE,
+ OID_GEN_RECEIVE_BLOCK_SIZE,
+ OID_GEN_VENDOR_ID,
+ OID_GEN_VENDOR_DESCRIPTION,
+ OID_GEN_VENDOR_DRIVER_VERSION,
+ OID_GEN_CURRENT_PACKET_FILTER,
+ OID_GEN_MAXIMUM_TOTAL_SIZE,
+ OID_GEN_MEDIA_CONNECT_STATUS,
+ OID_GEN_PHYSICAL_MEDIUM,
+#if 0
+ OID_GEN_RNDIS_CONFIG_PARAMETER,
+#endif
+
+ /* the statistical stuff */
+ OID_GEN_XMIT_OK,
+ OID_GEN_RCV_OK,
+ OID_GEN_XMIT_ERROR,
+ OID_GEN_RCV_ERROR,
+ OID_GEN_RCV_NO_BUFFER,
+#ifdef RNDIS_OPTIONAL_STATS
+ OID_GEN_DIRECTED_BYTES_XMIT,
+ OID_GEN_DIRECTED_FRAMES_XMIT,
+ OID_GEN_MULTICAST_BYTES_XMIT,
+ OID_GEN_MULTICAST_FRAMES_XMIT,
+ OID_GEN_BROADCAST_BYTES_XMIT,
+ OID_GEN_BROADCAST_FRAMES_XMIT,
+ OID_GEN_DIRECTED_BYTES_RCV,
+ OID_GEN_DIRECTED_FRAMES_RCV,
+ OID_GEN_MULTICAST_BYTES_RCV,
+ OID_GEN_MULTICAST_FRAMES_RCV,
+ OID_GEN_BROADCAST_BYTES_RCV,
+ OID_GEN_BROADCAST_FRAMES_RCV,
+ OID_GEN_RCV_CRC_ERROR,
+ OID_GEN_TRANSMIT_QUEUE_LENGTH,
+#endif /* RNDIS_OPTIONAL_STATS */
+
+ /* mandatory 802.3 */
+ /* the general stuff */
+ OID_802_3_PERMANENT_ADDRESS,
+ OID_802_3_CURRENT_ADDRESS,
+ OID_802_3_MULTICAST_LIST,
+ OID_802_3_MAC_OPTIONS,
+ OID_802_3_MAXIMUM_LIST_SIZE,
+
+ /* the statistical stuff */
+ OID_802_3_RCV_ERROR_ALIGNMENT,
+ OID_802_3_XMIT_ONE_COLLISION,
+ OID_802_3_XMIT_MORE_COLLISIONS,
+#ifdef RNDIS_OPTIONAL_STATS
+ OID_802_3_XMIT_DEFERRED,
+ OID_802_3_XMIT_MAX_COLLISIONS,
+ OID_802_3_RCV_OVERRUN,
+ OID_802_3_XMIT_UNDERRUN,
+ OID_802_3_XMIT_HEARTBEAT_FAILURE,
+ OID_802_3_XMIT_TIMES_CRS_LOST,
+ OID_802_3_XMIT_LATE_COLLISIONS,
+#endif /* RNDIS_OPTIONAL_STATS */
+
+#ifdef RNDIS_PM
+ /* PM and wakeup are mandatory for USB: */
+
+ /* power management */
+ OID_PNP_CAPABILITIES,
+ OID_PNP_QUERY_POWER,
+ OID_PNP_SET_POWER,
+
+#ifdef RNDIS_WAKEUP
+ /* wake up host */
+ OID_PNP_ENABLE_WAKE_UP,
+ OID_PNP_ADD_WAKE_UP_PATTERN,
+ OID_PNP_REMOVE_WAKE_UP_PATTERN,
+#endif /* RNDIS_WAKEUP */
+#endif /* RNDIS_PM */
+};
+
+
+/* NDIS Functions */
+static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf,
+ unsigned buf_len, rndis_resp_t *r)
+{
+ int retval = -ENOTSUPP;
+ u32 length = 4; /* usually */
+ __le32 *outbuf;
+ int i, count;
+ rndis_query_cmplt_type *resp;
+ rndis_params *params;
+
+ if (!r)
+ return -ENOMEM;
+ resp = (rndis_query_cmplt_type *) r->buf;
+
+ if (!resp)
+ return -ENOMEM;
+
+#if defined(DEBUG) && defined(DEBUG_VERBOSE)
+ if (buf_len) {
+ debug("query OID %08x value, len %d:\n", OID, buf_len);
+ for (i = 0; i < buf_len; i += 16) {
+ debug("%03d: %08x %08x %08x %08x\n", i,
+ get_unaligned_le32(&buf[i]),
+ get_unaligned_le32(&buf[i + 4]),
+ get_unaligned_le32(&buf[i + 8]),
+ get_unaligned_le32(&buf[i + 12]));
+ }
+ }
+#endif
+
+ /* response goes here, right after the header */
+ outbuf = (__le32 *) &resp[1];
+ resp->InformationBufferOffset = __constant_cpu_to_le32(16);
+
+ params = &rndis_per_dev_params[configNr];
+ switch (OID) {
+
+ /* general oids (table 4-1) */
+
+ /* mandatory */
+ case OID_GEN_SUPPORTED_LIST:
+ debug("%s: OID_GEN_SUPPORTED_LIST\n", __func__);
+ length = sizeof(oid_supported_list);
+ count = length / sizeof(u32);
+ for (i = 0; i < count; i++)
+ outbuf[i] = cpu_to_le32(oid_supported_list[i]);
+ retval = 0;
+ break;
+
+ /* mandatory */
+ case OID_GEN_HARDWARE_STATUS:
+ debug("%s: OID_GEN_HARDWARE_STATUS\n", __func__);
+ /*
+ * Bogus question!
+ * Hardware must be ready to receive high level protocols.
+ * BTW:
+ * reddite ergo quae sunt Caesaris Caesari
+ * et quae sunt Dei Deo!
+ */
+ *outbuf = __constant_cpu_to_le32(0);
+ retval = 0;
+ break;
+
+ /* mandatory */
+ case OID_GEN_MEDIA_SUPPORTED:
+ debug("%s: OID_GEN_MEDIA_SUPPORTED\n", __func__);
+ *outbuf = cpu_to_le32(params->medium);
+ retval = 0;
+ break;
+
+ /* mandatory */
+ case OID_GEN_MEDIA_IN_USE:
+ debug("%s: OID_GEN_MEDIA_IN_USE\n", __func__);
+ /* one medium, one transport... (maybe you do it better) */
+ *outbuf = cpu_to_le32(params->medium);
+ retval = 0;
+ break;
+
+ /* mandatory */
+ case OID_GEN_MAXIMUM_FRAME_SIZE:
+ debug("%s: OID_GEN_MAXIMUM_FRAME_SIZE\n", __func__);
+ if (params->dev) {
+ *outbuf = cpu_to_le32(params->mtu);
+ retval = 0;
+ }
+ break;
+
+ /* mandatory */
+ case OID_GEN_LINK_SPEED:
+#if defined(DEBUG) && defined(DEBUG_VERBOSE)
+ debug("%s: OID_GEN_LINK_SPEED\n", __func__);
+#endif
+ if (params->media_state == NDIS_MEDIA_STATE_DISCONNECTED)
+ *outbuf = __constant_cpu_to_le32(0);
+ else
+ *outbuf = cpu_to_le32(params->speed);
+ retval = 0;
+ break;
+
+ /* mandatory */
+ case OID_GEN_TRANSMIT_BLOCK_SIZE:
+ debug("%s: OID_GEN_TRANSMIT_BLOCK_SIZE\n", __func__);
+ if (params->dev) {
+ *outbuf = cpu_to_le32(params->mtu);
+ retval = 0;
+ }
+ break;
+
+ /* mandatory */
+ case OID_GEN_RECEIVE_BLOCK_SIZE:
+ debug("%s: OID_GEN_RECEIVE_BLOCK_SIZE\n", __func__);
+ if (params->dev) {
+ *outbuf = cpu_to_le32(params->mtu);
+ retval = 0;
+ }
+ break;
+
+ /* mandatory */
+ case OID_GEN_VENDOR_ID:
+ debug("%s: OID_GEN_VENDOR_ID\n", __func__);
+ *outbuf = cpu_to_le32(params->vendorID);
+ retval = 0;
+ break;
+
+ /* mandatory */
+ case OID_GEN_VENDOR_DESCRIPTION:
+ debug("%s: OID_GEN_VENDOR_DESCRIPTION\n", __func__);
+ length = strlen(params->vendorDescr);
+ memcpy(outbuf, params->vendorDescr, length);
+ retval = 0;
+ break;
+
+ case OID_GEN_VENDOR_DRIVER_VERSION:
+ debug("%s: OID_GEN_VENDOR_DRIVER_VERSION\n", __func__);
+ /* Created as LE */
+ *outbuf = rndis_driver_version;
+ retval = 0;
+ break;
+
+ /* mandatory */
+ case OID_GEN_CURRENT_PACKET_FILTER:
+ debug("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __func__);
+ *outbuf = cpu_to_le32(*params->filter);
+ retval = 0;
+ break;
+
+ /* mandatory */
+ case OID_GEN_MAXIMUM_TOTAL_SIZE:
+ debug("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __func__);
+ *outbuf = __constant_cpu_to_le32(RNDIS_MAX_TOTAL_SIZE);
+ retval = 0;
+ break;
+
+ /* mandatory */
+ case OID_GEN_MEDIA_CONNECT_STATUS:
+#if defined(DEBUG) && defined(DEBUG_VERBOSE)
+ debug("%s: OID_GEN_MEDIA_CONNECT_STATUS\n", __func__);
+#endif
+ *outbuf = cpu_to_le32(params->media_state);
+ retval = 0;
+ break;
+
+ case OID_GEN_PHYSICAL_MEDIUM:
+ debug("%s: OID_GEN_PHYSICAL_MEDIUM\n", __func__);
+ *outbuf = __constant_cpu_to_le32(0);
+ retval = 0;
+ break;
+
+ /*
+ * The RNDIS specification is incomplete/wrong. Some versions
+ * of MS-Windows expect OIDs that aren't specified there. Other
+ * versions emit undefined RNDIS messages. DOCUMENT ALL THESE!
+ */
+ case OID_GEN_MAC_OPTIONS: /* from WinME */
+ debug("%s: OID_GEN_MAC_OPTIONS\n", __func__);
+ *outbuf = __constant_cpu_to_le32(
+ NDIS_MAC_OPTION_RECEIVE_SERIALIZED
+ | NDIS_MAC_OPTION_FULL_DUPLEX);
+ retval = 0;
+ break;
+
+ /* statistics OIDs (table 4-2) */
+
+ /* mandatory */
+ case OID_GEN_XMIT_OK:
+#if defined(DEBUG) && defined(DEBUG_VERBOSE)
+ debug("%s: OID_GEN_XMIT_OK\n", __func__);
+#endif
+ if (params->stats) {
+ *outbuf = cpu_to_le32(
+ params->stats->tx_packets -
+ params->stats->tx_errors -
+ params->stats->tx_dropped);
+ retval = 0;
+ }
+ break;
+
+ /* mandatory */
+ case OID_GEN_RCV_OK:
+#if defined(DEBUG) && defined(DEBUG_VERBOSE)
+ debug("%s: OID_GEN_RCV_OK\n", __func__);
+#endif
+ if (params->stats) {
+ *outbuf = cpu_to_le32(
+ params->stats->rx_packets -
+ params->stats->rx_errors -
+ params->stats->rx_dropped);
+ retval = 0;
+ }
+ break;
+
+ /* mandatory */
+ case OID_GEN_XMIT_ERROR:
+#if defined(DEBUG) && defined(DEBUG_VERBOSE)
+ debug("%s: OID_GEN_XMIT_ERROR\n", __func__);
+#endif
+ if (params->stats) {
+ *outbuf = cpu_to_le32(params->stats->tx_errors);
+ retval = 0;
+ }
+ break;
+
+ /* mandatory */
+ case OID_GEN_RCV_ERROR:
+#if defined(DEBUG) && defined(DEBUG_VERBOSE)
+ debug("%s: OID_GEN_RCV_ERROR\n", __func__);
+#endif
+ if (params->stats) {
+ *outbuf = cpu_to_le32(params->stats->rx_errors);
+ retval = 0;
+ }
+ break;
+
+ /* mandatory */
+ case OID_GEN_RCV_NO_BUFFER:
+ debug("%s: OID_GEN_RCV_NO_BUFFER\n", __func__);
+ if (params->stats) {
+ *outbuf = cpu_to_le32(params->stats->rx_dropped);
+ retval = 0;
+ }
+ break;
+
+#ifdef RNDIS_OPTIONAL_STATS
+ case OID_GEN_DIRECTED_BYTES_XMIT:
+ debug("%s: OID_GEN_DIRECTED_BYTES_XMIT\n", __func__);
+ /*
+ * Aunt Tilly's size of shoes
+ * minus antarctica count of penguins
+ * divided by weight of Alpha Centauri
+ */
+ if (params->stats) {
+ *outbuf = cpu_to_le32(
+ (params->stats->tx_packets -
+ params->stats->tx_errors -
+ params->stats->tx_dropped)
+ * 123);
+ retval = 0;
+ }
+ break;
+
+ case OID_GEN_DIRECTED_FRAMES_XMIT:
+ debug("%s: OID_GEN_DIRECTED_FRAMES_XMIT\n", __func__);
+ /* dito */
+ if (params->stats) {
+ *outbuf = cpu_to_le32(
+ (params->stats->tx_packets -
+ params->stats->tx_errors -
+ params->stats->tx_dropped)
+ / 123);
+ retval = 0;
+ }
+ break;
+
+ case OID_GEN_MULTICAST_BYTES_XMIT:
+ debug("%s: OID_GEN_MULTICAST_BYTES_XMIT\n", __func__);
+ if (params->stats) {
+ *outbuf = cpu_to_le32(params->stats->multicast * 1234);
+ retval = 0;
+ }
+ break;
+
+ case OID_GEN_MULTICAST_FRAMES_XMIT:
+ debug("%s: OID_GEN_MULTICAST_FRAMES_XMIT\n", __func__);
+ if (params->stats) {
+ *outbuf = cpu_to_le32(params->stats->multicast);
+ retval = 0;
+ }
+ break;
+
+ case OID_GEN_BROADCAST_BYTES_XMIT:
+ debug("%s: OID_GEN_BROADCAST_BYTES_XMIT\n", __func__);
+ if (params->stats) {
+ *outbuf = cpu_to_le32(params->stats->tx_packets/42*255);
+ retval = 0;
+ }
+ break;
+
+ case OID_GEN_BROADCAST_FRAMES_XMIT:
+ debug("%s: OID_GEN_BROADCAST_FRAMES_XMIT\n", __func__);
+ if (params->stats) {
+ *outbuf = cpu_to_le32(params->stats->tx_packets / 42);
+ retval = 0;
+ }
+ break;
+
+ case OID_GEN_DIRECTED_BYTES_RCV:
+ debug("%s: OID_GEN_DIRECTED_BYTES_RCV\n", __func__);
+ *outbuf = __constant_cpu_to_le32(0);
+ retval = 0;
+ break;
+
+ case OID_GEN_DIRECTED_FRAMES_RCV:
+ debug("%s: OID_GEN_DIRECTED_FRAMES_RCV\n", __func__);
+ *outbuf = __constant_cpu_to_le32(0);
+ retval = 0;
+ break;
+
+ case OID_GEN_MULTICAST_BYTES_RCV:
+ debug("%s: OID_GEN_MULTICAST_BYTES_RCV\n", __func__);
+ if (params->stats) {
+ *outbuf = cpu_to_le32(params->stats->multicast * 1111);
+ retval = 0;
+ }
+ break;
+
+ case OID_GEN_MULTICAST_FRAMES_RCV:
+ debug("%s: OID_GEN_MULTICAST_FRAMES_RCV\n", __func__);
+ if (params->stats) {
+ *outbuf = cpu_to_le32(params->stats->multicast);
+ retval = 0;
+ }
+ break;
+
+ case OID_GEN_BROADCAST_BYTES_RCV:
+ debug("%s: OID_GEN_BROADCAST_BYTES_RCV\n", __func__);
+ if (params->stats) {
+ *outbuf = cpu_to_le32(params->stats->rx_packets/42*255);
+ retval = 0;
+ }
+ break;
+
+ case OID_GEN_BROADCAST_FRAMES_RCV:
+ debug("%s: OID_GEN_BROADCAST_FRAMES_RCV\n", __func__);
+ if (params->stats) {
+ *outbuf = cpu_to_le32(params->stats->rx_packets / 42);
+ retval = 0;
+ }
+ break;
+
+ case OID_GEN_RCV_CRC_ERROR:
+ debug("%s: OID_GEN_RCV_CRC_ERROR\n", __func__);
+ if (params->stats) {
+ *outbuf = cpu_to_le32(params->stats->rx_crc_errors);
+ retval = 0;
+ }
+ break;
+
+ case OID_GEN_TRANSMIT_QUEUE_LENGTH:
+ debug("%s: OID_GEN_TRANSMIT_QUEUE_LENGTH\n", __func__);
+ *outbuf = __constant_cpu_to_le32(0);
+ retval = 0;
+ break;
+#endif /* RNDIS_OPTIONAL_STATS */
+
+ /* ieee802.3 OIDs (table 4-3) */
+
+ /* mandatory */
+ case OID_802_3_PERMANENT_ADDRESS:
+ debug("%s: OID_802_3_PERMANENT_ADDRESS\n", __func__);
+ if (params->dev) {
+ length = ETH_ALEN;
+ memcpy(outbuf, params->host_mac, length);
+ retval = 0;
+ }
+ break;
+
+ /* mandatory */
+ case OID_802_3_CURRENT_ADDRESS:
+ debug("%s: OID_802_3_CURRENT_ADDRESS\n", __func__);
+ if (params->dev) {
+ length = ETH_ALEN;
+ memcpy(outbuf, params->host_mac, length);
+ retval = 0;
+ }
+ break;
+
+ /* mandatory */
+ case OID_802_3_MULTICAST_LIST:
+ debug("%s: OID_802_3_MULTICAST_LIST\n", __func__);
+ /* Multicast base address only */
+ *outbuf = __constant_cpu_to_le32(0xE0000000);
+ retval = 0;
+ break;
+
+ /* mandatory */
+ case OID_802_3_MAXIMUM_LIST_SIZE:
+ debug("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __func__);
+ /* Multicast base address only */
+ *outbuf = __constant_cpu_to_le32(1);
+ retval = 0;
+ break;
+
+ case OID_802_3_MAC_OPTIONS:
+ debug("%s: OID_802_3_MAC_OPTIONS\n", __func__);
+ break;
+
+ /* ieee802.3 statistics OIDs (table 4-4) */
+
+ /* mandatory */
+ case OID_802_3_RCV_ERROR_ALIGNMENT:
+ debug("%s: OID_802_3_RCV_ERROR_ALIGNMENT\n", __func__);
+ if (params->stats) {
+ *outbuf = cpu_to_le32(params->stats->rx_frame_errors);
+ retval = 0;
+ }
+ break;
+
+ /* mandatory */
+ case OID_802_3_XMIT_ONE_COLLISION:
+ debug("%s: OID_802_3_XMIT_ONE_COLLISION\n", __func__);
+ *outbuf = __constant_cpu_to_le32(0);
+ retval = 0;
+ break;
+
+ /* mandatory */
+ case OID_802_3_XMIT_MORE_COLLISIONS:
+ debug("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __func__);
+ *outbuf = __constant_cpu_to_le32(0);
+ retval = 0;
+ break;
+
+#ifdef RNDIS_OPTIONAL_STATS
+ case OID_802_3_XMIT_DEFERRED:
+ debug("%s: OID_802_3_XMIT_DEFERRED\n", __func__);
+ /* TODO */
+ break;
+
+ case OID_802_3_XMIT_MAX_COLLISIONS:
+ debug("%s: OID_802_3_XMIT_MAX_COLLISIONS\n", __func__);
+ /* TODO */
+ break;
+
+ case OID_802_3_RCV_OVERRUN:
+ debug("%s: OID_802_3_RCV_OVERRUN\n", __func__);
+ /* TODO */
+ break;
+
+ case OID_802_3_XMIT_UNDERRUN:
+ debug("%s: OID_802_3_XMIT_UNDERRUN\n", __func__);
+ /* TODO */
+ break;
+
+ case OID_802_3_XMIT_HEARTBEAT_FAILURE:
+ debug("%s: OID_802_3_XMIT_HEARTBEAT_FAILURE\n", __func__);
+ /* TODO */
+ break;
+
+ case OID_802_3_XMIT_TIMES_CRS_LOST:
+ debug("%s: OID_802_3_XMIT_TIMES_CRS_LOST\n", __func__);
+ /* TODO */
+ break;
+
+ case OID_802_3_XMIT_LATE_COLLISIONS:
+ debug("%s: OID_802_3_XMIT_LATE_COLLISIONS\n", __func__);
+ /* TODO */
+ break;
+#endif /* RNDIS_OPTIONAL_STATS */
+
+#ifdef RNDIS_PM
+ /* power management OIDs (table 4-5) */
+ case OID_PNP_CAPABILITIES:
+ debug("%s: OID_PNP_CAPABILITIES\n", __func__);
+
+ /* for now, no wakeup capabilities */
+ length = sizeof(struct NDIS_PNP_CAPABILITIES);
+ memset(outbuf, 0, length);
+ retval = 0;
+ break;
+ case OID_PNP_QUERY_POWER:
+ debug("%s: OID_PNP_QUERY_POWER D%d\n", __func__,
+ get_unaligned_le32(buf) - 1);
+ /*
+ * only suspend is a real power state, and
+ * it can't be entered by OID_PNP_SET_POWER...
+ */
+ length = 0;
+ retval = 0;
+ break;
+#endif
+
+ default:
+ debug("%s: query unknown OID 0x%08X\n", __func__, OID);
+ }
+ if (retval < 0)
+ length = 0;
+
+ resp->InformationBufferLength = cpu_to_le32(length);
+ r->length = length + sizeof *resp;
+ resp->MessageLength = cpu_to_le32(r->length);
+ return retval;
+}
+
+static int gen_ndis_set_resp(u8 configNr, u32 OID, u8 *buf, u32 buf_len,
+ rndis_resp_t *r)
+{
+ rndis_set_cmplt_type *resp;
+ int retval = -ENOTSUPP;
+ struct rndis_params *params;
+#if (defined(DEBUG) && defined(DEBUG_VERBOSE)) || defined(RNDIS_PM)
+ int i;
+#endif
+
+ if (!r)
+ return -ENOMEM;
+ resp = (rndis_set_cmplt_type *) r->buf;
+ if (!resp)
+ return -ENOMEM;
+
+#if defined(DEBUG) && defined(DEBUG_VERBOSE)
+ if (buf_len) {
+ debug("set OID %08x value, len %d:\n", OID, buf_len);
+ for (i = 0; i < buf_len; i += 16) {
+ debug("%03d: %08x %08x %08x %08x\n", i,
+ get_unaligned_le32(&buf[i]),
+ get_unaligned_le32(&buf[i + 4]),
+ get_unaligned_le32(&buf[i + 8]),
+ get_unaligned_le32(&buf[i + 12]));
+ }
+ }
+#endif
+
+ params = &rndis_per_dev_params[configNr];
+ switch (OID) {
+ case OID_GEN_CURRENT_PACKET_FILTER:
+
+ /*
+ * these NDIS_PACKET_TYPE_* bitflags are shared with
+ * cdc_filter; it's not RNDIS-specific
+ * NDIS_PACKET_TYPE_x == USB_CDC_PACKET_TYPE_x for x in:
+ * PROMISCUOUS, DIRECTED,
+ * MULTICAST, ALL_MULTICAST, BROADCAST
+ */
+ *params->filter = (u16) get_unaligned_le32(buf);
+ debug("%s: OID_GEN_CURRENT_PACKET_FILTER %08x\n",
+ __func__, *params->filter);
+
+ /*
+ * this call has a significant side effect: it's
+ * what makes the packet flow start and stop, like
+ * activating the CDC Ethernet altsetting.
+ */
+#ifdef RNDIS_PM
+update_linkstate:
+#endif
+ retval = 0;
+ if (*params->filter)
+ params->state = RNDIS_DATA_INITIALIZED;
+ else
+ params->state = RNDIS_INITIALIZED;
+ break;
+
+ case OID_802_3_MULTICAST_LIST:
+ /* I think we can ignore this */
+ debug("%s: OID_802_3_MULTICAST_LIST\n", __func__);
+ retval = 0;
+ break;
+#if 0
+ case OID_GEN_RNDIS_CONFIG_PARAMETER:
+ {
+ struct rndis_config_parameter *param;
+ param = (struct rndis_config_parameter *) buf;
+ debug("%s: OID_GEN_RNDIS_CONFIG_PARAMETER '%*s'\n",
+ __func__,
+ min(cpu_to_le32(param->ParameterNameLength), 80),
+ buf + param->ParameterNameOffset);
+ retval = 0;
+ }
+ break;
+#endif
+
+#ifdef RNDIS_PM
+ case OID_PNP_SET_POWER:
+ /*
+ * The only real power state is USB suspend, and RNDIS requests
+ * can't enter it; this one isn't really about power. After
+ * resuming, Windows forces a reset, and then SET_POWER D0.
+ * FIXME ... then things go batty; Windows wedges itself.
+ */
+ i = get_unaligned_le32(buf);
+ debug("%s: OID_PNP_SET_POWER D%d\n", __func__, i - 1);
+ switch (i) {
+ case NdisDeviceStateD0:
+ *params->filter = params->saved_filter;
+ goto update_linkstate;
+ case NdisDeviceStateD3:
+ case NdisDeviceStateD2:
+ case NdisDeviceStateD1:
+ params->saved_filter = *params->filter;
+ retval = 0;
+ break;
+ }
+ break;
+
+#ifdef RNDIS_WAKEUP
+ /*
+ * no wakeup support advertised, so wakeup OIDs always fail:
+ * - OID_PNP_ENABLE_WAKE_UP
+ * - OID_PNP_{ADD,REMOVE}_WAKE_UP_PATTERN
+ */
+#endif
+
+#endif /* RNDIS_PM */
+
+ default:
+ debug("%s: set unknown OID 0x%08X, size %d\n",
+ __func__, OID, buf_len);
+ }
+
+ return retval;
+}
+
+/*
+ * Response Functions
+ */
+
+static int rndis_init_response(int configNr, rndis_init_msg_type *buf)
+{
+ rndis_init_cmplt_type *resp;
+ rndis_resp_t *r;
+
+ if (!rndis_per_dev_params[configNr].dev)
+ return -ENOTSUPP;
+
+ r = rndis_add_response(configNr, sizeof(rndis_init_cmplt_type));
+ if (!r)
+ return -ENOMEM;
+ resp = (rndis_init_cmplt_type *) r->buf;
+
+ resp->MessageType = __constant_cpu_to_le32(
+ REMOTE_NDIS_INITIALIZE_CMPLT);
+ resp->MessageLength = __constant_cpu_to_le32(52);
+ resp->RequestID = get_unaligned(&buf->RequestID); /* Still LE in msg buffer */
+ resp->Status = __constant_cpu_to_le32(RNDIS_STATUS_SUCCESS);
+ resp->MajorVersion = __constant_cpu_to_le32(RNDIS_MAJOR_VERSION);
+ resp->MinorVersion = __constant_cpu_to_le32(RNDIS_MINOR_VERSION);
+ resp->DeviceFlags = __constant_cpu_to_le32(RNDIS_DF_CONNECTIONLESS);
+ resp->Medium = __constant_cpu_to_le32(RNDIS_MEDIUM_802_3);
+ resp->MaxPacketsPerTransfer = __constant_cpu_to_le32(1);
+ resp->MaxTransferSize = cpu_to_le32(
+ rndis_per_dev_params[configNr].mtu
+ + ETHER_HDR_SIZE
+ + sizeof(struct rndis_packet_msg_type)
+ + 22);
+ resp->PacketAlignmentFactor = __constant_cpu_to_le32(0);
+ resp->AFListOffset = __constant_cpu_to_le32(0);
+ resp->AFListSize = __constant_cpu_to_le32(0);
+
+ if (rndis_per_dev_params[configNr].ack)
+ rndis_per_dev_params[configNr].ack(
+ rndis_per_dev_params[configNr].dev);
+
+ return 0;
+}
+
+static int rndis_query_response(int configNr, rndis_query_msg_type *buf)
+{
+ rndis_query_cmplt_type *resp;
+ rndis_resp_t *r;
+
+ debug("%s: OID = %08X\n", __func__, get_unaligned_le32(&buf->OID));
+ if (!rndis_per_dev_params[configNr].dev)
+ return -ENOTSUPP;
+
+ /*
+ * we need more memory:
+ * gen_ndis_query_resp expects enough space for
+ * rndis_query_cmplt_type followed by data.
+ * oid_supported_list is the largest data reply
+ */
+ r = rndis_add_response(configNr,
+ sizeof(oid_supported_list) + sizeof(rndis_query_cmplt_type));
+ if (!r)
+ return -ENOMEM;
+ resp = (rndis_query_cmplt_type *) r->buf;
+
+ resp->MessageType = __constant_cpu_to_le32(REMOTE_NDIS_QUERY_CMPLT);
+ resp->RequestID = get_unaligned(&buf->RequestID); /* Still LE in msg buffer */
+
+ if (gen_ndis_query_resp(configNr, get_unaligned_le32(&buf->OID),
+ get_unaligned_le32(&buf->InformationBufferOffset)
+ + 8 + (u8 *) buf,
+ get_unaligned_le32(&buf->InformationBufferLength),
+ r)) {
+ /* OID not supported */
+ resp->Status = __constant_cpu_to_le32(
+ RNDIS_STATUS_NOT_SUPPORTED);
+ resp->MessageLength = __constant_cpu_to_le32(sizeof *resp);
+ resp->InformationBufferLength = __constant_cpu_to_le32(0);
+ resp->InformationBufferOffset = __constant_cpu_to_le32(0);
+ } else
+ resp->Status = __constant_cpu_to_le32(RNDIS_STATUS_SUCCESS);
+
+ if (rndis_per_dev_params[configNr].ack)
+ rndis_per_dev_params[configNr].ack(
+ rndis_per_dev_params[configNr].dev);
+ return 0;
+}
+
+static int rndis_set_response(int configNr, rndis_set_msg_type *buf)
+{
+ u32 BufLength, BufOffset;
+ rndis_set_cmplt_type *resp;
+ rndis_resp_t *r;
+
+ r = rndis_add_response(configNr, sizeof(rndis_set_cmplt_type));
+ if (!r)
+ return -ENOMEM;
+ resp = (rndis_set_cmplt_type *) r->buf;
+
+ BufLength = get_unaligned_le32(&buf->InformationBufferLength);
+ BufOffset = get_unaligned_le32(&buf->InformationBufferOffset);
+
+#ifdef VERBOSE
+ debug("%s: Length: %d\n", __func__, BufLength);
+ debug("%s: Offset: %d\n", __func__, BufOffset);
+ debug("%s: InfoBuffer: ", __func__);
+
+ for (i = 0; i < BufLength; i++)
+ debug("%02x ", *(((u8 *) buf) + i + 8 + BufOffset));
+
+ debug("\n");
+#endif
+
+ resp->MessageType = __constant_cpu_to_le32(REMOTE_NDIS_SET_CMPLT);
+ resp->MessageLength = __constant_cpu_to_le32(16);
+ resp->RequestID = get_unaligned(&buf->RequestID); /* Still LE in msg buffer */
+ if (gen_ndis_set_resp(configNr, get_unaligned_le32(&buf->OID),
+ ((u8 *) buf) + 8 + BufOffset, BufLength, r))
+ resp->Status = __constant_cpu_to_le32(
+ RNDIS_STATUS_NOT_SUPPORTED);
+ else
+ resp->Status = __constant_cpu_to_le32(RNDIS_STATUS_SUCCESS);
+
+ if (rndis_per_dev_params[configNr].ack)
+ rndis_per_dev_params[configNr].ack(
+ rndis_per_dev_params[configNr].dev);
+
+ return 0;
+}
+
+static int rndis_reset_response(int configNr, rndis_reset_msg_type *buf)
+{
+ rndis_reset_cmplt_type *resp;
+ rndis_resp_t *r;
+
+ r = rndis_add_response(configNr, sizeof(rndis_reset_cmplt_type));
+ if (!r)
+ return -ENOMEM;
+ resp = (rndis_reset_cmplt_type *) r->buf;
+
+ resp->MessageType = __constant_cpu_to_le32(REMOTE_NDIS_RESET_CMPLT);
+ resp->MessageLength = __constant_cpu_to_le32(16);
+ resp->Status = __constant_cpu_to_le32(RNDIS_STATUS_SUCCESS);
+ /* resent information */
+ resp->AddressingReset = __constant_cpu_to_le32(1);
+
+ if (rndis_per_dev_params[configNr].ack)
+ rndis_per_dev_params[configNr].ack(
+ rndis_per_dev_params[configNr].dev);
+
+ return 0;
+}
+
+static int rndis_keepalive_response(int configNr,
+ rndis_keepalive_msg_type *buf)
+{
+ rndis_keepalive_cmplt_type *resp;
+ rndis_resp_t *r;
+
+ /* host "should" check only in RNDIS_DATA_INITIALIZED state */
+
+ r = rndis_add_response(configNr, sizeof(rndis_keepalive_cmplt_type));
+ if (!r)
+ return -ENOMEM;
+ resp = (rndis_keepalive_cmplt_type *) r->buf;
+
+ resp->MessageType = __constant_cpu_to_le32(
+ REMOTE_NDIS_KEEPALIVE_CMPLT);
+ resp->MessageLength = __constant_cpu_to_le32(16);
+ resp->RequestID = get_unaligned(&buf->RequestID); /* Still LE in msg buffer */
+ resp->Status = __constant_cpu_to_le32(RNDIS_STATUS_SUCCESS);
+
+ if (rndis_per_dev_params[configNr].ack)
+ rndis_per_dev_params[configNr].ack(
+ rndis_per_dev_params[configNr].dev);
+
+ return 0;
+}
+
+
+/*
+ * Device to Host Comunication
+ */
+static int rndis_indicate_status_msg(int configNr, u32 status)
+{
+ rndis_indicate_status_msg_type *resp;
+ rndis_resp_t *r;
+
+ if (rndis_per_dev_params[configNr].state == RNDIS_UNINITIALIZED)
+ return -ENOTSUPP;
+
+ r = rndis_add_response(configNr,
+ sizeof(rndis_indicate_status_msg_type));
+ if (!r)
+ return -ENOMEM;
+ resp = (rndis_indicate_status_msg_type *) r->buf;
+
+ resp->MessageType = __constant_cpu_to_le32(
+ REMOTE_NDIS_INDICATE_STATUS_MSG);
+ resp->MessageLength = __constant_cpu_to_le32(20);
+ resp->Status = cpu_to_le32(status);
+ resp->StatusBufferLength = __constant_cpu_to_le32(0);
+ resp->StatusBufferOffset = __constant_cpu_to_le32(0);
+
+ if (rndis_per_dev_params[configNr].ack)
+ rndis_per_dev_params[configNr].ack(
+ rndis_per_dev_params[configNr].dev);
+ return 0;
+}
+
+int rndis_signal_connect(int configNr)
+{
+ rndis_per_dev_params[configNr].media_state
+ = NDIS_MEDIA_STATE_CONNECTED;
+ return rndis_indicate_status_msg(configNr,
+ RNDIS_STATUS_MEDIA_CONNECT);
+}
+
+int rndis_signal_disconnect(int configNr)
+{
+ rndis_per_dev_params[configNr].media_state
+ = NDIS_MEDIA_STATE_DISCONNECTED;
+
+ return 0;
+}
+
+void rndis_uninit(int configNr)
+{
+ u8 *buf;
+ u32 length;
+
+ if (configNr >= RNDIS_MAX_CONFIGS)
+ return;
+ rndis_per_dev_params[configNr].used = 0;
+ rndis_per_dev_params[configNr].state = RNDIS_UNINITIALIZED;
+
+ /* drain the response queue */
+ while ((buf = rndis_get_next_response(configNr, &length)))
+ rndis_free_response(configNr, buf);
+}
+
+void rndis_set_host_mac(int configNr, const u8 *addr)
+{
+ rndis_per_dev_params[configNr].host_mac = addr;
+}
+
+enum rndis_state rndis_get_state(int configNr)
+{
+ if (configNr >= RNDIS_MAX_CONFIGS || configNr < 0)
+ return -ENOTSUPP;
+ return rndis_per_dev_params[configNr].state;
+}
+
+/*
+ * Message Parser
+ */
+int rndis_msg_parser(u8 configNr, u8 *buf)
+{
+ u32 MsgType, MsgLength;
+ __le32 *tmp;
+ struct rndis_params *params;
+
+ debug("%s: configNr = %d, %p\n", __func__, configNr, buf);
+
+ if (!buf)
+ return -ENOMEM;
+
+ tmp = (__le32 *) buf;
+ MsgType = get_unaligned_le32(tmp++);
+ MsgLength = get_unaligned_le32(tmp++);
+
+ if (configNr >= RNDIS_MAX_CONFIGS)
+ return -ENOTSUPP;
+ params = &rndis_per_dev_params[configNr];
+
+ /*
+ * NOTE: RNDIS is *EXTREMELY* chatty ... Windows constantly polls for
+ * rx/tx statistics and link status, in addition to KEEPALIVE traffic
+ * and normal HC level polling to see if there's any IN traffic.
+ */
+
+ /* For USB: responses may take up to 10 seconds */
+ switch (MsgType) {
+ case REMOTE_NDIS_INITIALIZE_MSG:
+ debug("%s: REMOTE_NDIS_INITIALIZE_MSG\n", __func__);
+ params->state = RNDIS_INITIALIZED;
+ return rndis_init_response(configNr,
+ (rndis_init_msg_type *) buf);
+
+ case REMOTE_NDIS_HALT_MSG:
+ debug("%s: REMOTE_NDIS_HALT_MSG\n", __func__);
+ params->state = RNDIS_UNINITIALIZED;
+ return 0;
+
+ case REMOTE_NDIS_QUERY_MSG:
+ return rndis_query_response(configNr,
+ (rndis_query_msg_type *) buf);
+
+ case REMOTE_NDIS_SET_MSG:
+ return rndis_set_response(configNr,
+ (rndis_set_msg_type *) buf);
+
+ case REMOTE_NDIS_RESET_MSG:
+ debug("%s: REMOTE_NDIS_RESET_MSG\n", __func__);
+ return rndis_reset_response(configNr,
+ (rndis_reset_msg_type *) buf);
+
+ case REMOTE_NDIS_KEEPALIVE_MSG:
+ /* For USB: host does this every 5 seconds */
+#if defined(DEBUG) && defined(DEBUG_VERBOSE)
+ debug("%s: REMOTE_NDIS_KEEPALIVE_MSG\n", __func__);
+#endif
+ return rndis_keepalive_response(configNr,
+ (rndis_keepalive_msg_type *) buf);
+
+ default:
+ /*
+ * At least Windows XP emits some undefined RNDIS messages.
+ * In one case those messages seemed to relate to the host
+ * suspending itself.
+ */
+ debug("%s: unknown RNDIS message 0x%08X len %d\n",
+ __func__ , MsgType, MsgLength);
+ {
+ unsigned i;
+ for (i = 0; i < MsgLength; i += 16) {
+ debug("%03d: "
+ " %02x %02x %02x %02x"
+ " %02x %02x %02x %02x"
+ " %02x %02x %02x %02x"
+ " %02x %02x %02x %02x"
+ "\n",
+ i,
+ buf[i], buf[i+1],
+ buf[i+2], buf[i+3],
+ buf[i+4], buf[i+5],
+ buf[i+6], buf[i+7],
+ buf[i+8], buf[i+9],
+ buf[i+10], buf[i+11],
+ buf[i+12], buf[i+13],
+ buf[i+14], buf[i+15]);
+ }
+ }
+ break;
+ }
+
+ return -ENOTSUPP;
+}
+
+int rndis_register(int (*rndis_control_ack)(struct eth_device *))
+{
+ u8 i;
+
+ for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
+ if (!rndis_per_dev_params[i].used) {
+ rndis_per_dev_params[i].used = 1;
+ rndis_per_dev_params[i].ack = rndis_control_ack;
+ debug("%s: configNr = %d\n", __func__, i);
+ return i;
+ }
+ }
+ debug("%s failed\n", __func__);
+
+ return -1;
+}
+
+void rndis_deregister(int configNr)
+{
+ debug("%s: configNr = %d\n", __func__, configNr);
+
+ if (configNr >= RNDIS_MAX_CONFIGS)
+ return;
+ rndis_per_dev_params[configNr].used = 0;
+
+ return;
+}
+
+int rndis_set_param_dev(u8 configNr, struct eth_device *dev, int mtu,
+ struct net_device_stats *stats, u16 *cdc_filter)
+{
+ debug("%s: configNr = %d\n", __func__, configNr);
+ if (!dev || !stats)
+ return -1;
+ if (configNr >= RNDIS_MAX_CONFIGS)
+ return -1;
+
+ rndis_per_dev_params[configNr].dev = dev;
+ rndis_per_dev_params[configNr].stats = stats;
+ rndis_per_dev_params[configNr].mtu = mtu;
+ rndis_per_dev_params[configNr].filter = cdc_filter;
+
+ return 0;
+}
+
+int rndis_set_param_vendor(u8 configNr, u32 vendorID, const char *vendorDescr)
+{
+ debug("%s: configNr = %d\n", __func__, configNr);
+ if (!vendorDescr)
+ return -1;
+ if (configNr >= RNDIS_MAX_CONFIGS)
+ return -1;
+
+ rndis_per_dev_params[configNr].vendorID = vendorID;
+ rndis_per_dev_params[configNr].vendorDescr = vendorDescr;
+
+ return 0;
+}
+
+int rndis_set_param_medium(u8 configNr, u32 medium, u32 speed)
+{
+ debug("%s: configNr = %d, %u %u\n", __func__, configNr, medium, speed);
+ if (configNr >= RNDIS_MAX_CONFIGS)
+ return -1;
+
+ rndis_per_dev_params[configNr].medium = medium;
+ rndis_per_dev_params[configNr].speed = speed;
+
+ return 0;
+}
+
+void rndis_add_hdr(void *buf, int length)
+{
+ struct rndis_packet_msg_type *header;
+
+ header = buf;
+ memset(header, 0, sizeof *header);
+ header->MessageType = __constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG);
+ header->MessageLength = cpu_to_le32(length + sizeof *header);
+ header->DataOffset = __constant_cpu_to_le32(36);
+ header->DataLength = cpu_to_le32(length);
+}
+
+void rndis_free_response(int configNr, u8 *buf)
+{
+ rndis_resp_t *r;
+ struct list_head *act, *tmp;
+
+ list_for_each_safe(act, tmp,
+ &(rndis_per_dev_params[configNr].resp_queue))
+ {
+ r = list_entry(act, rndis_resp_t, list);
+ if (r && r->buf == buf) {
+ list_del(&r->list);
+ free(r);
+ }
+ }
+}
+
+u8 *rndis_get_next_response(int configNr, u32 *length)
+{
+ rndis_resp_t *r;
+ struct list_head *act, *tmp;
+
+ if (!length)
+ return NULL;
+
+ list_for_each_safe(act, tmp,
+ &(rndis_per_dev_params[configNr].resp_queue))
+ {
+ r = list_entry(act, rndis_resp_t, list);
+ if (!r->send) {
+ r->send = 1;
+ *length = r->length;
+ return r->buf;
+ }
+ }
+
+ return NULL;
+}
+
+static rndis_resp_t *rndis_add_response(int configNr, u32 length)
+{
+ rndis_resp_t *r;
+
+ /* NOTE: this gets copied into ether.c USB_BUFSIZ bytes ... */
+ r = malloc(sizeof(rndis_resp_t) + length);
+ if (!r)
+ return NULL;
+
+ r->buf = (u8 *) (r + 1);
+ r->length = length;
+ r->send = 0;
+
+ list_add_tail(&r->list,
+ &(rndis_per_dev_params[configNr].resp_queue));
+ return r;
+}
+
+int rndis_rm_hdr(void *buf, int length)
+{
+ /* tmp points to a struct rndis_packet_msg_type */
+ __le32 *tmp = buf;
+ int offs, len;
+
+ /* MessageType, MessageLength */
+ if (__constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG)
+ != get_unaligned(tmp++))
+ return -EINVAL;
+ tmp++;
+
+ /* DataOffset, DataLength */
+ offs = get_unaligned_le32(tmp++) + 8 /* offset of DataOffset */;
+ if (offs != sizeof(struct rndis_packet_msg_type))
+ debug("%s: unexpected DataOffset: %d\n", __func__, offs);
+ if (offs >= length)
+ return -EOVERFLOW;
+
+ len = get_unaligned_le32(tmp++);
+ if (len + sizeof(struct rndis_packet_msg_type) != length)
+ debug("%s: unexpected DataLength: %d, packet length=%d\n",
+ __func__, len, length);
+
+ memmove(buf, buf + offs, len);
+
+ return offs;
+}
+
+int rndis_init(void)
+{
+ u8 i;
+
+ for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
+ rndis_per_dev_params[i].confignr = i;
+ rndis_per_dev_params[i].used = 0;
+ rndis_per_dev_params[i].state = RNDIS_UNINITIALIZED;
+ rndis_per_dev_params[i].media_state
+ = NDIS_MEDIA_STATE_DISCONNECTED;
+ INIT_LIST_HEAD(&(rndis_per_dev_params[i].resp_queue));
+ }
+
+ return 0;
+}
+
+void rndis_exit(void)
+{
+ /* Nothing to do */
+}
+
diff --git a/drivers/usb/gadget/rndis.h b/drivers/usb/gadget/rndis.h
new file mode 100644
index 0000000..73a1204
--- /dev/null
+++ b/drivers/usb/gadget/rndis.h
@@ -0,0 +1,252 @@
+/*
+ * RNDIS Definitions for Remote NDIS
+ *
+ * Authors: Benedikt Spranger, Pengutronix
+ * Robert Schwebel, Pengutronix
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This software was originally developed in conformance with
+ * Microsoft's Remote NDIS Specification License Agreement.
+ */
+
+#ifndef _USBGADGET_RNDIS_H
+#define _USBGADGET_RNDIS_H
+
+#include "ndis.h"
+
+#define RNDIS_MAXIMUM_FRAME_SIZE 1518
+#define RNDIS_MAX_TOTAL_SIZE 1558
+
+/* Remote NDIS Versions */
+#define RNDIS_MAJOR_VERSION 1
+#define RNDIS_MINOR_VERSION 0
+
+/* Status Values */
+#define RNDIS_STATUS_SUCCESS 0x00000000U /* Success */
+#define RNDIS_STATUS_FAILURE 0xC0000001U /* Unspecified error */
+#define RNDIS_STATUS_INVALID_DATA 0xC0010015U /* Invalid data */
+#define RNDIS_STATUS_NOT_SUPPORTED 0xC00000BBU /* Unsupported request */
+#define RNDIS_STATUS_MEDIA_CONNECT 0x4001000BU /* Device connected */
+#define RNDIS_STATUS_MEDIA_DISCONNECT 0x4001000CU /* Device disconnected */
+/*
+ * For all not specified status messages:
+ * RNDIS_STATUS_Xxx -> NDIS_STATUS_Xxx
+ */
+
+/* Message Set for Connectionless (802.3) Devices */
+#define REMOTE_NDIS_PACKET_MSG 0x00000001U
+#define REMOTE_NDIS_INITIALIZE_MSG 0x00000002U /* Initialize device */
+#define REMOTE_NDIS_HALT_MSG 0x00000003U
+#define REMOTE_NDIS_QUERY_MSG 0x00000004U
+#define REMOTE_NDIS_SET_MSG 0x00000005U
+#define REMOTE_NDIS_RESET_MSG 0x00000006U
+#define REMOTE_NDIS_INDICATE_STATUS_MSG 0x00000007U
+#define REMOTE_NDIS_KEEPALIVE_MSG 0x00000008U
+
+/* Message completion */
+#define REMOTE_NDIS_INITIALIZE_CMPLT 0x80000002U
+#define REMOTE_NDIS_QUERY_CMPLT 0x80000004U
+#define REMOTE_NDIS_SET_CMPLT 0x80000005U
+#define REMOTE_NDIS_RESET_CMPLT 0x80000006U
+#define REMOTE_NDIS_KEEPALIVE_CMPLT 0x80000008U
+
+/* Device Flags */
+#define RNDIS_DF_CONNECTIONLESS 0x00000001U
+#define RNDIS_DF_CONNECTION_ORIENTED 0x00000002U
+
+#define RNDIS_MEDIUM_802_3 0x00000000U
+
+/* from drivers/net/sk98lin/h/skgepnmi.h */
+#define OID_PNP_CAPABILITIES 0xFD010100
+#define OID_PNP_SET_POWER 0xFD010101
+#define OID_PNP_QUERY_POWER 0xFD010102
+#define OID_PNP_ADD_WAKE_UP_PATTERN 0xFD010103
+#define OID_PNP_REMOVE_WAKE_UP_PATTERN 0xFD010104
+#define OID_PNP_ENABLE_WAKE_UP 0xFD010106
+
+
+typedef struct rndis_init_msg_type {
+ __le32 MessageType;
+ __le32 MessageLength;
+ __le32 RequestID;
+ __le32 MajorVersion;
+ __le32 MinorVersion;
+ __le32 MaxTransferSize;
+} rndis_init_msg_type;
+
+typedef struct rndis_init_cmplt_type {
+ __le32 MessageType;
+ __le32 MessageLength;
+ __le32 RequestID;
+ __le32 Status;
+ __le32 MajorVersion;
+ __le32 MinorVersion;
+ __le32 DeviceFlags;
+ __le32 Medium;
+ __le32 MaxPacketsPerTransfer;
+ __le32 MaxTransferSize;
+ __le32 PacketAlignmentFactor;
+ __le32 AFListOffset;
+ __le32 AFListSize;
+} rndis_init_cmplt_type;
+
+typedef struct rndis_halt_msg_type {
+ __le32 MessageType;
+ __le32 MessageLength;
+ __le32 RequestID;
+} rndis_halt_msg_type;
+
+typedef struct rndis_query_msg_type {
+ __le32 MessageType;
+ __le32 MessageLength;
+ __le32 RequestID;
+ __le32 OID;
+ __le32 InformationBufferLength;
+ __le32 InformationBufferOffset;
+ __le32 DeviceVcHandle;
+} rndis_query_msg_type;
+
+typedef struct rndis_query_cmplt_type {
+ __le32 MessageType;
+ __le32 MessageLength;
+ __le32 RequestID;
+ __le32 Status;
+ __le32 InformationBufferLength;
+ __le32 InformationBufferOffset;
+} rndis_query_cmplt_type;
+
+typedef struct rndis_set_msg_type {
+ __le32 MessageType;
+ __le32 MessageLength;
+ __le32 RequestID;
+ __le32 OID;
+ __le32 InformationBufferLength;
+ __le32 InformationBufferOffset;
+ __le32 DeviceVcHandle;
+} rndis_set_msg_type;
+
+typedef struct rndis_set_cmplt_type {
+ __le32 MessageType;
+ __le32 MessageLength;
+ __le32 RequestID;
+ __le32 Status;
+} rndis_set_cmplt_type;
+
+typedef struct rndis_reset_msg_type {
+ __le32 MessageType;
+ __le32 MessageLength;
+ __le32 Reserved;
+} rndis_reset_msg_type;
+
+typedef struct rndis_reset_cmplt_type {
+ __le32 MessageType;
+ __le32 MessageLength;
+ __le32 Status;
+ __le32 AddressingReset;
+} rndis_reset_cmplt_type;
+
+typedef struct rndis_indicate_status_msg_type {
+ __le32 MessageType;
+ __le32 MessageLength;
+ __le32 Status;
+ __le32 StatusBufferLength;
+ __le32 StatusBufferOffset;
+} rndis_indicate_status_msg_type;
+
+typedef struct rndis_keepalive_msg_type {
+ __le32 MessageType;
+ __le32 MessageLength;
+ __le32 RequestID;
+} rndis_keepalive_msg_type;
+
+typedef struct rndis_keepalive_cmplt_type {
+ __le32 MessageType;
+ __le32 MessageLength;
+ __le32 RequestID;
+ __le32 Status;
+} rndis_keepalive_cmplt_type;
+
+struct rndis_packet_msg_type {
+ __le32 MessageType;
+ __le32 MessageLength;
+ __le32 DataOffset;
+ __le32 DataLength;
+ __le32 OOBDataOffset;
+ __le32 OOBDataLength;
+ __le32 NumOOBDataElements;
+ __le32 PerPacketInfoOffset;
+ __le32 PerPacketInfoLength;
+ __le32 VcHandle;
+ __le32 Reserved;
+} __attribute__ ((packed));
+
+struct rndis_config_parameter {
+ __le32 ParameterNameOffset;
+ __le32 ParameterNameLength;
+ __le32 ParameterType;
+ __le32 ParameterValueOffset;
+ __le32 ParameterValueLength;
+};
+
+/* implementation specific */
+enum rndis_state {
+ RNDIS_UNINITIALIZED,
+ RNDIS_INITIALIZED,
+ RNDIS_DATA_INITIALIZED,
+};
+
+typedef struct rndis_resp_t {
+ struct list_head list;
+ u8 *buf;
+ u32 length;
+ int send;
+} rndis_resp_t;
+
+typedef struct rndis_params {
+ u8 confignr;
+ u8 used;
+ u16 saved_filter;
+ enum rndis_state state;
+ u32 medium;
+ u32 speed;
+ u32 media_state;
+
+ const u8 *host_mac;
+ u16 *filter;
+ struct eth_device *dev;
+ struct net_device_stats *stats;
+ int mtu;
+
+ u32 vendorID;
+ const char *vendorDescr;
+ int (*ack)(struct eth_device *);
+ struct list_head resp_queue;
+} rndis_params;
+
+/* RNDIS Message parser and other useless functions */
+int rndis_msg_parser(u8 configNr, u8 *buf);
+enum rndis_state rndis_get_state(int configNr);
+int rndis_register(int (*rndis_control_ack)(struct eth_device *));
+void rndis_deregister(int configNr);
+int rndis_set_param_dev(u8 configNr, struct eth_device *dev, int mtu,
+ struct net_device_stats *stats, u16 *cdc_filter);
+int rndis_set_param_vendor(u8 configNr, u32 vendorID,
+ const char *vendorDescr);
+int rndis_set_param_medium(u8 configNr, u32 medium, u32 speed);
+void rndis_add_hdr(void *bug, int length);
+int rndis_rm_hdr(void *bug, int length);
+u8 *rndis_get_next_response(int configNr, u32 *length);
+void rndis_free_response(int configNr, u8 *buf);
+
+void rndis_uninit(int configNr);
+int rndis_signal_connect(int configNr);
+int rndis_signal_disconnect(int configNr);
+extern void rndis_set_host_mac(int configNr, const u8 *addr);
+
+int rndis_init(void);
+void rndis_exit(void);
+
+#endif /* _USBGADGET_RNDIS_H */
diff --git a/include/linux/usb/cdc.h b/include/linux/usb/cdc.h
index 2967284..c1d039c 100644
--- a/include/linux/usb/cdc.h
+++ b/include/linux/usb/cdc.h
@@ -158,6 +158,9 @@ struct usb_cdc_mdlm_detail_desc {
*
* section 3.6.2.1 table 4 has the ACM profile, for modems.
* section 3.8.2 table 10 has the ethernet profile.
+ *
+ * Microsoft's RNDIS stack for Ethernet is a vendor-specific CDC ACM variant,
+ * heavily dependent on the encapsulated (proprietary) command mechanism.
*/
#define USB_CDC_SEND_ENCAPSULATED_COMMAND 0x00
@@ -203,7 +206,8 @@ struct usb_cdc_line_coding {
* Class-Specific Notifications (6.3) sent by interrupt transfers
*
* section 3.8.2 table 11 of the CDC spec lists Ethernet notifications
- * section 3.6.2.1 table 5 specifies ACM notifications
+ * section 3.6.2.1 table 5 specifies ACM notifications, accepted by RNDIS
+ * RNDIS also defines its own bit-incompatible notifications
*/
#define USB_CDC_NOTIFY_NETWORK_CONNECTION 0x00
--
1.7.3.4
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