diff options
Diffstat (limited to 'drivers/usb/gadget/u_ether.h')
| -rw-r--r-- | drivers/usb/gadget/u_ether.h | 166 |
1 files changed, 159 insertions, 7 deletions
diff --git a/drivers/usb/gadget/u_ether.h b/drivers/usb/gadget/u_ether.h index 02522338a708..fb23d1fde8eb 100644 --- a/drivers/usb/gadget/u_ether.h +++ b/drivers/usb/gadget/u_ether.h @@ -21,6 +21,26 @@ #include "gadget_chips.h" +#define QMULT_DEFAULT 5 + +/* + * dev_addr: initial value + * changed by "ifconfig usb0 hw ether xx:xx:xx:xx:xx:xx" + * host_addr: this address is invisible to ifconfig + */ +#define USB_ETHERNET_MODULE_PARAMETERS() \ + static unsigned qmult = QMULT_DEFAULT; \ + module_param(qmult, uint, S_IRUGO|S_IWUSR); \ + MODULE_PARM_DESC(qmult, "queue length multiplier at high/super speed");\ + \ + static char *dev_addr; \ + module_param(dev_addr, charp, S_IRUGO); \ + MODULE_PARM_DESC(dev_addr, "Device Ethernet Address"); \ + \ + static char *host_addr; \ + module_param(host_addr, charp, S_IRUGO); \ + MODULE_PARM_DESC(host_addr, "Host Ethernet Address") + struct eth_dev; /* @@ -71,8 +91,9 @@ struct gether { |USB_CDC_PACKET_TYPE_DIRECTED) /* variant of gether_setup that allows customizing network device name */ -struct eth_dev *gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN], - const char *netname); +struct eth_dev *gether_setup_name(struct usb_gadget *g, + const char *dev_addr, const char *host_addr, + u8 ethaddr[ETH_ALEN], unsigned qmult, const char *netname); /* netdev setup/teardown as directed by the gadget driver */ /* gether_setup - initialize one ethernet-over-usb link @@ -88,11 +109,145 @@ struct eth_dev *gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN], * Returns negative errno, or zero on success */ static inline struct eth_dev *gether_setup(struct usb_gadget *g, - u8 ethaddr[ETH_ALEN]) + const char *dev_addr, const char *host_addr, + u8 ethaddr[ETH_ALEN], unsigned qmult) { - return gether_setup_name(g, ethaddr, "usb"); + return gether_setup_name(g, dev_addr, host_addr, ethaddr, qmult, "usb"); } +/* + * variant of gether_setup_default that allows customizing + * network device name + */ +struct net_device *gether_setup_name_default(const char *netname); + +/* + * gether_register_netdev - register the net device + * @net: net device to register + * + * Registers the net device associated with this ethernet-over-usb link + * + */ +int gether_register_netdev(struct net_device *net); + +/* gether_setup_default - initialize one ethernet-over-usb link + * Context: may sleep + * + * This sets up the single network link that may be exported by a + * gadget driver using this framework. The link layer addresses + * are set to random values. + * + * Returns negative errno, or zero on success + */ +static inline struct net_device *gether_setup_default(void) +{ + return gether_setup_name_default("usb"); +} + +/** + * gether_set_gadget - initialize one ethernet-over-usb link with a gadget + * @net: device representing this link + * @g: the gadget to initialize with + * + * This associates one ethernet-over-usb link with a gadget. + */ +void gether_set_gadget(struct net_device *net, struct usb_gadget *g); + +/** + * gether_set_dev_addr - initialize an ethernet-over-usb link with eth address + * @net: device representing this link + * @dev_addr: eth address of this device + * + * This sets the device-side Ethernet address of this ethernet-over-usb link + * if dev_addr is correct. + * Returns negative errno if the new address is incorrect. + */ +int gether_set_dev_addr(struct net_device *net, const char *dev_addr); + +/** + * gether_get_dev_addr - get an ethernet-over-usb link eth address + * @net: device representing this link + * @dev_addr: place to store device's eth address + * @len: length of the @dev_addr buffer + * + * This gets the device-side Ethernet address of this ethernet-over-usb link. + * Returns zero on success, else negative errno. + */ +int gether_get_dev_addr(struct net_device *net, char *dev_addr, int len); + +/** + * gether_set_host_addr - initialize an ethernet-over-usb link with host address + * @net: device representing this link + * @host_addr: eth address of the host + * + * This sets the host-side Ethernet address of this ethernet-over-usb link + * if host_addr is correct. + * Returns negative errno if the new address is incorrect. + */ +int gether_set_host_addr(struct net_device *net, const char *host_addr); + +/** + * gether_get_host_addr - get an ethernet-over-usb link host address + * @net: device representing this link + * @host_addr: place to store eth address of the host + * @len: length of the @host_addr buffer + * + * This gets the host-side Ethernet address of this ethernet-over-usb link. + * Returns zero on success, else negative errno. + */ +int gether_get_host_addr(struct net_device *net, char *host_addr, int len); + +/** + * gether_get_host_addr_cdc - get an ethernet-over-usb link host address + * @net: device representing this link + * @host_addr: place to store eth address of the host + * @len: length of the @host_addr buffer + * + * This gets the CDC formatted host-side Ethernet address of this + * ethernet-over-usb link. + * Returns zero on success, else negative errno. + */ +int gether_get_host_addr_cdc(struct net_device *net, char *host_addr, int len); + +/** + * gether_get_host_addr_u8 - get an ethernet-over-usb link host address + * @net: device representing this link + * @host_mac: place to store the eth address of the host + * + * This gets the binary formatted host-side Ethernet address of this + * ethernet-over-usb link. + */ +void gether_get_host_addr_u8(struct net_device *net, u8 host_mac[ETH_ALEN]); + +/** + * gether_set_qmult - initialize an ethernet-over-usb link with a multiplier + * @net: device representing this link + * @qmult: queue multiplier + * + * This sets the queue length multiplier of this ethernet-over-usb link. + * For higher speeds use longer queues. + */ +void gether_set_qmult(struct net_device *net, unsigned qmult); + +/** + * gether_get_qmult - get an ethernet-over-usb link multiplier + * @net: device representing this link + * + * This gets the queue length multiplier of this ethernet-over-usb link. + */ +unsigned gether_get_qmult(struct net_device *net); + +/** + * gether_get_ifname - get an ethernet-over-usb link interface name + * @net: device representing this link + * @name: place to store the interface name + * @len: length of the @name buffer + * + * This gets the interface name of this ethernet-over-usb link. + * Returns zero on success, else negative errno. + */ +int gether_get_ifname(struct net_device *net, char *name, int len); + void gether_cleanup(struct eth_dev *dev); /* connect/disconnect is handled by individual functions */ @@ -117,9 +272,6 @@ int geth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], struct eth_dev *dev); int ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], struct eth_dev *dev); -int ncm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], - struct eth_dev *dev); -int eem_bind_config(struct usb_configuration *c, struct eth_dev *dev); #ifdef USB_ETH_RNDIS |