diff options
Diffstat (limited to 'include/linux/usb')
| -rw-r--r-- | include/linux/usb/rndis_host.h | 210 | ||||
| -rw-r--r-- | include/linux/usb/usbnet.h | 256 |
2 files changed, 466 insertions, 0 deletions
diff --git a/include/linux/usb/rndis_host.h b/include/linux/usb/rndis_host.h new file mode 100644 index 0000000..d44ef85 --- /dev/null +++ b/include/linux/usb/rndis_host.h @@ -0,0 +1,210 @@ +/* + * Host Side support for RNDIS Networking Links + * Copyright (C) 2005 by David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __LINUX_USB_RNDIS_HOST_H +#define __LINUX_USB_RNDIS_HOST_H + +#include <linux/rndis.h> + +/* + * CONTROL uses CDC "encapsulated commands" with funky notifications. + * - control-out: SEND_ENCAPSULATED + * - interrupt-in: RESPONSE_AVAILABLE + * - control-in: GET_ENCAPSULATED + * + * We'll try to ignore the RESPONSE_AVAILABLE notifications. + * + * REVISIT some RNDIS implementations seem to have curious issues still + * to be resolved. + */ +struct rndis_msg_hdr { + __le32 msg_type; /* RNDIS_MSG_* */ + __le32 msg_len; + /* followed by data that varies between messages */ + __le32 request_id; + __le32 status; + /* ... and more */ +} __attribute__ ((packed)); + +/* MS-Windows uses this strange size, but RNDIS spec says 1024 minimum */ +#define CONTROL_BUFFER_SIZE 1025 + +/* RNDIS defines an (absurdly huge) 10 second control timeout, + * but ActiveSync seems to use a more usual 5 second timeout + * (which matches the USB 2.0 spec). + */ +#define RNDIS_CONTROL_TIMEOUT_MS (5 * 1000) + +struct rndis_data_hdr { + __le32 msg_type; /* RNDIS_MSG_PACKET */ + __le32 msg_len; /* rndis_data_hdr + data_len + pad */ + __le32 data_offset; /* 36 -- right after header */ + __le32 data_len; /* ... real packet size */ + + __le32 oob_data_offset; /* zero */ + __le32 oob_data_len; /* zero */ + __le32 num_oob; /* zero */ + __le32 packet_data_offset; /* zero */ + + __le32 packet_data_len; /* zero */ + __le32 vc_handle; /* zero */ + __le32 reserved; /* zero */ +} __attribute__ ((packed)); + +struct rndis_init { /* OUT */ + /* header and: */ + __le32 msg_type; /* RNDIS_MSG_INIT */ + __le32 msg_len; /* 24 */ + __le32 request_id; + __le32 major_version; /* of rndis (1.0) */ + __le32 minor_version; + __le32 max_transfer_size; +} __attribute__ ((packed)); + +struct rndis_init_c { /* IN */ + /* header and: */ + __le32 msg_type; /* RNDIS_MSG_INIT_C */ + __le32 msg_len; + __le32 request_id; + __le32 status; + __le32 major_version; /* of rndis (1.0) */ + __le32 minor_version; + __le32 device_flags; + __le32 medium; /* zero == 802.3 */ + __le32 max_packets_per_message; + __le32 max_transfer_size; + __le32 packet_alignment; /* max 7; (1<<n) bytes */ + __le32 af_list_offset; /* zero */ + __le32 af_list_size; /* zero */ +} __attribute__ ((packed)); + +struct rndis_halt { /* OUT (no reply) */ + /* header and: */ + __le32 msg_type; /* RNDIS_MSG_HALT */ + __le32 msg_len; + __le32 request_id; +} __attribute__ ((packed)); + +struct rndis_query { /* OUT */ + /* header and: */ + __le32 msg_type; /* RNDIS_MSG_QUERY */ + __le32 msg_len; + __le32 request_id; + __le32 oid; + __le32 len; + __le32 offset; +/*?*/ __le32 handle; /* zero */ +} __attribute__ ((packed)); + +struct rndis_query_c { /* IN */ + /* header and: */ + __le32 msg_type; /* RNDIS_MSG_QUERY_C */ + __le32 msg_len; + __le32 request_id; + __le32 status; + __le32 len; + __le32 offset; +} __attribute__ ((packed)); + +struct rndis_set { /* OUT */ + /* header and: */ + __le32 msg_type; /* RNDIS_MSG_SET */ + __le32 msg_len; + __le32 request_id; + __le32 oid; + __le32 len; + __le32 offset; +/*?*/ __le32 handle; /* zero */ +} __attribute__ ((packed)); + +struct rndis_set_c { /* IN */ + /* header and: */ + __le32 msg_type; /* RNDIS_MSG_SET_C */ + __le32 msg_len; + __le32 request_id; + __le32 status; +} __attribute__ ((packed)); + +struct rndis_reset { /* IN */ + /* header and: */ + __le32 msg_type; /* RNDIS_MSG_RESET */ + __le32 msg_len; + __le32 reserved; +} __attribute__ ((packed)); + +struct rndis_reset_c { /* OUT */ + /* header and: */ + __le32 msg_type; /* RNDIS_MSG_RESET_C */ + __le32 msg_len; + __le32 status; + __le32 addressing_lost; +} __attribute__ ((packed)); + +struct rndis_indicate { /* IN (unrequested) */ + /* header and: */ + __le32 msg_type; /* RNDIS_MSG_INDICATE */ + __le32 msg_len; + __le32 status; + __le32 length; + __le32 offset; +/**/ __le32 diag_status; + __le32 error_offset; +/**/ __le32 message; +} __attribute__ ((packed)); + +struct rndis_keepalive { /* OUT (optionally IN) */ + /* header and: */ + __le32 msg_type; /* RNDIS_MSG_KEEPALIVE */ + __le32 msg_len; + __le32 request_id; +} __attribute__ ((packed)); + +struct rndis_keepalive_c { /* IN (optionally OUT) */ + /* header and: */ + __le32 msg_type; /* RNDIS_MSG_KEEPALIVE_C */ + __le32 msg_len; + __le32 request_id; + __le32 status; +} __attribute__ ((packed)); + +/* default filter used with RNDIS devices */ +#define RNDIS_DEFAULT_FILTER ( \ + RNDIS_PACKET_TYPE_DIRECTED | \ + RNDIS_PACKET_TYPE_BROADCAST | \ + RNDIS_PACKET_TYPE_ALL_MULTICAST | \ + RNDIS_PACKET_TYPE_PROMISCUOUS) + +/* Flags to require specific physical medium type for generic_rndis_bind() */ +#define FLAG_RNDIS_PHYM_NOT_WIRELESS 0x0001 +#define FLAG_RNDIS_PHYM_WIRELESS 0x0002 + +/* Flags for driver_info::data */ +#define RNDIS_DRIVER_DATA_POLL_STATUS 1 /* poll status before control */ + +extern void rndis_status(struct usbnet *dev, struct urb *urb); +extern int +rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen); +extern int +generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags); +extern void rndis_unbind(struct usbnet *dev, struct usb_interface *intf); +extern int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb); +extern struct sk_buff * +rndis_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags); + +#endif /* __LINUX_USB_RNDIS_HOST_H */ diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h new file mode 100644 index 0000000..f18d641 --- /dev/null +++ b/include/linux/usb/usbnet.h @@ -0,0 +1,256 @@ +/* + * USB Networking Link Interface + * + * Copyright (C) 2000-2005 by David Brownell <dbrownell@users.sourceforge.net> + * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __LINUX_USB_USBNET_H +#define __LINUX_USB_USBNET_H + +/* interface from usbnet core to each USB networking link we handle */ +struct usbnet { + /* housekeeping */ + struct usb_device *udev; + struct usb_interface *intf; + struct driver_info *driver_info; + const char *driver_name; + void *driver_priv; + wait_queue_head_t *wait; + struct mutex phy_mutex; + unsigned char suspend_count; + unsigned char pkt_cnt, pkt_err; + + /* i/o info: pipes etc */ + unsigned in, out; + struct usb_host_endpoint *status; + unsigned maxpacket; + struct timer_list delay; + + /* protocol/interface state */ + struct net_device *net; + int msg_enable; + unsigned long data[5]; + u32 xid; + u32 hard_mtu; /* count any extra framing */ + size_t rx_urb_size; /* size for rx urbs */ + struct mii_if_info mii; + + /* various kinds of pending driver work */ + struct sk_buff_head rxq; + struct sk_buff_head txq; + struct sk_buff_head done; + struct sk_buff_head rxq_pause; + struct urb *interrupt; + unsigned interrupt_count; + struct mutex interrupt_mutex; + struct usb_anchor deferred; + struct tasklet_struct bh; + + struct work_struct kevent; + unsigned long flags; +# define EVENT_TX_HALT 0 +# define EVENT_RX_HALT 1 +# define EVENT_RX_MEMORY 2 +# define EVENT_STS_SPLIT 3 +# define EVENT_LINK_RESET 4 +# define EVENT_RX_PAUSED 5 +# define EVENT_DEV_ASLEEP 6 +# define EVENT_DEV_OPEN 7 +# define EVENT_DEVICE_REPORT_IDLE 8 +# define EVENT_NO_RUNTIME_PM 9 +# define EVENT_RX_KILL 10 +# define EVENT_LINK_CHANGE 11 +}; + +static inline struct usb_driver *driver_of(struct usb_interface *intf) +{ + return to_usb_driver(intf->dev.driver); +} + +/* interface from the device/framing level "minidriver" to core */ +struct driver_info { + char *description; + + int flags; +/* framing is CDC Ethernet, not writing ZLPs (hw issues), or optionally: */ +#define FLAG_FRAMING_NC 0x0001 /* guard against device dropouts */ +#define FLAG_FRAMING_GL 0x0002 /* genelink batches packets */ +#define FLAG_FRAMING_Z 0x0004 /* zaurus adds a trailer */ +#define FLAG_FRAMING_RN 0x0008 /* RNDIS batches, plus huge header */ + +#define FLAG_NO_SETINT 0x0010 /* device can't set_interface() */ +#define FLAG_ETHER 0x0020 /* maybe use "eth%d" names */ + +#define FLAG_FRAMING_AX 0x0040 /* AX88772/178 packets */ +#define FLAG_WLAN 0x0080 /* use "wlan%d" names */ +#define FLAG_AVOID_UNLINK_URBS 0x0100 /* don't unlink urbs at usbnet_stop() */ +#define FLAG_SEND_ZLP 0x0200 /* hw requires ZLPs are sent */ +#define FLAG_WWAN 0x0400 /* use "wwan%d" names */ + +#define FLAG_LINK_INTR 0x0800 /* updates link (carrier) status */ + +#define FLAG_POINTTOPOINT 0x1000 /* possibly use "usb%d" names */ + +/* + * Indicates to usbnet, that USB driver accumulates multiple IP packets. + * Affects statistic (counters) and short packet handling. + */ +#define FLAG_MULTI_PACKET 0x2000 +#define FLAG_RX_ASSEMBLE 0x4000 /* rx packets may span >1 frames */ +#define FLAG_NOARP 0x8000 /* device can't do ARP */ + + /* init device ... can sleep, or cause probe() failure */ + int (*bind)(struct usbnet *, struct usb_interface *); + + /* cleanup device ... can sleep, but can't fail */ + void (*unbind)(struct usbnet *, struct usb_interface *); + + /* reset device ... can sleep */ + int (*reset)(struct usbnet *); + + /* stop device ... can sleep */ + int (*stop)(struct usbnet *); + + /* see if peer is connected ... can sleep */ + int (*check_connect)(struct usbnet *); + + /* (dis)activate runtime power management */ + int (*manage_power)(struct usbnet *, int); + + /* for status polling */ + void (*status)(struct usbnet *, struct urb *); + + /* link reset handling, called from defer_kevent */ + int (*link_reset)(struct usbnet *); + + /* fixup rx packet (strip framing) */ + int (*rx_fixup)(struct usbnet *dev, struct sk_buff *skb); + + /* fixup tx packet (add framing) */ + struct sk_buff *(*tx_fixup)(struct usbnet *dev, + struct sk_buff *skb, gfp_t flags); + + /* early initialization code, can sleep. This is for minidrivers + * having 'subminidrivers' that need to do extra initialization + * right after minidriver have initialized hardware. */ + int (*early_init)(struct usbnet *dev); + + /* called by minidriver when receiving indication */ + void (*indication)(struct usbnet *dev, void *ind, int indlen); + + /* for new devices, use the descriptor-reading code instead */ + int in; /* rx endpoint */ + int out; /* tx endpoint */ + + unsigned long data; /* Misc driver specific data */ +}; + +/* Minidrivers are just drivers using the "usbnet" core as a powerful + * network-specific subroutine library ... that happens to do pretty + * much everything except custom framing and chip-specific stuff. + */ +extern int usbnet_probe(struct usb_interface *, const struct usb_device_id *); +extern int usbnet_suspend(struct usb_interface *, pm_message_t); +extern int usbnet_resume(struct usb_interface *); +extern void usbnet_disconnect(struct usb_interface *); +extern void usbnet_device_suggests_idle(struct usbnet *dev); + +extern int usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, + u16 value, u16 index, void *data, u16 size); +extern int usbnet_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, + u16 value, u16 index, const void *data, u16 size); +extern int usbnet_read_cmd_nopm(struct usbnet *dev, u8 cmd, u8 reqtype, + u16 value, u16 index, void *data, u16 size); +extern int usbnet_write_cmd_nopm(struct usbnet *dev, u8 cmd, u8 reqtype, + u16 value, u16 index, const void *data, u16 size); +extern int usbnet_write_cmd_async(struct usbnet *dev, u8 cmd, u8 reqtype, + u16 value, u16 index, const void *data, u16 size); + +/* Drivers that reuse some of the standard USB CDC infrastructure + * (notably, using multiple interfaces according to the CDC + * union descriptor) get some helper code. + */ +struct cdc_state { + struct usb_cdc_header_desc *header; + struct usb_cdc_union_desc *u; + struct usb_cdc_ether_desc *ether; + struct usb_interface *control; + struct usb_interface *data; +}; + +extern int usbnet_generic_cdc_bind(struct usbnet *, struct usb_interface *); +extern int usbnet_cdc_bind(struct usbnet *, struct usb_interface *); +extern void usbnet_cdc_unbind(struct usbnet *, struct usb_interface *); +extern void usbnet_cdc_status(struct usbnet *, struct urb *); + +/* CDC and RNDIS support the same host-chosen packet filters for IN transfers */ +#define DEFAULT_FILTER (USB_CDC_PACKET_TYPE_BROADCAST \ + |USB_CDC_PACKET_TYPE_ALL_MULTICAST \ + |USB_CDC_PACKET_TYPE_PROMISCUOUS \ + |USB_CDC_PACKET_TYPE_DIRECTED) + + +/* we record the state for each of our queued skbs */ +enum skb_state { + illegal = 0, + tx_start, tx_done, + rx_start, rx_done, rx_cleanup, + unlink_start +}; + +struct skb_data { /* skb->cb is one of these */ + struct urb *urb; + struct usbnet *dev; + enum skb_state state; + size_t length; +}; + +extern int usbnet_open(struct net_device *net); +extern int usbnet_stop(struct net_device *net); +extern netdev_tx_t usbnet_start_xmit(struct sk_buff *skb, + struct net_device *net); +extern void usbnet_tx_timeout(struct net_device *net); +extern int usbnet_change_mtu(struct net_device *net, int new_mtu); + +extern int usbnet_get_endpoints(struct usbnet *, struct usb_interface *); +extern int usbnet_get_ethernet_addr(struct usbnet *, int); +extern void usbnet_defer_kevent(struct usbnet *, int); +extern void usbnet_skb_return(struct usbnet *, struct sk_buff *); +extern void usbnet_unlink_rx_urbs(struct usbnet *); + +extern void usbnet_pause_rx(struct usbnet *); +extern void usbnet_resume_rx(struct usbnet *); +extern void usbnet_purge_paused_rxq(struct usbnet *); + +extern int usbnet_get_settings(struct net_device *net, + struct ethtool_cmd *cmd); +extern int usbnet_set_settings(struct net_device *net, + struct ethtool_cmd *cmd); +extern u32 usbnet_get_link(struct net_device *net); +extern u32 usbnet_get_msglevel(struct net_device *); +extern void usbnet_set_msglevel(struct net_device *, u32); +extern void usbnet_get_drvinfo(struct net_device *, struct ethtool_drvinfo *); +extern int usbnet_nway_reset(struct net_device *net); + +extern int usbnet_manage_power(struct usbnet *, int); +extern void usbnet_link_change(struct usbnet *, bool, bool); + +extern int usbnet_status_start(struct usbnet *dev, gfp_t mem_flags); +extern void usbnet_status_stop(struct usbnet *dev); + +#endif /* __LINUX_USB_USBNET_H */ |