From david-b@pacbell.net Wed Aug 31 11:03:23 2005 From: David Brownell Subject: USB: usbnet (2/9) module for simple network links Date: Wed, 31 Aug 2005 09:52:45 -0700 Cc: Greg KH Message-Id: <200508310952.45417.david-b@pacbell.net> This patch creates the first of several separate "minidriver" modules for "usbnet". This one handles only the very simplest hardware, which can be handled almost entirely by the "usbnet" core. - Move device-specific bits into new "cdc_subset.c" driver, shrinking "usbnet" by a bunch; - Export the functions needed to support this minidriver (with EXPORT_SYMBOL_GPL); - Update Kconfig and kbuild accordingly. This one handles about a dozen different device types, with the most notable ones being Gumstix and most Linux-based PDAs (except Zaurus running that ancient code from Sharp). Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/net/Kconfig | 123 ++++++++------- drivers/usb/net/Makefile | 1 drivers/usb/net/cdc_subset.c | 335 +++++++++++++++++++++++++++++++++++++++++++ drivers/usb/net/usbnet.c | 240 +----------------------------- drivers/usb/net/usbnet.h | 15 + 5 files changed, 429 insertions(+), 285 deletions(-) --- gregkh-2.6.orig/drivers/usb/net/Makefile 2005-09-08 14:08:20.000000000 -0700 +++ gregkh-2.6/drivers/usb/net/Makefile 2005-09-08 14:08:37.000000000 -0700 @@ -6,5 +6,6 @@ obj-$(CONFIG_USB_CATC) += catc.o obj-$(CONFIG_USB_KAWETH) += kaweth.o obj-$(CONFIG_USB_PEGASUS) += pegasus.o obj-$(CONFIG_USB_RTL8150) += rtl8150.o +obj-$(CONFIG_USB_NET_CDC_SUBSET) += cdc_subset.o obj-$(CONFIG_USB_USBNET) += usbnet.o obj-$(CONFIG_USB_ZD1201) += zd1201.o --- gregkh-2.6.orig/drivers/usb/net/Kconfig 2005-09-08 14:08:36.000000000 -0700 +++ gregkh-2.6/drivers/usb/net/Kconfig 2005-09-08 14:08:37.000000000 -0700 @@ -128,32 +128,6 @@ config USB_USBNET comment "USB Host-to-Host Cables" depends on USB_USBNET -config USB_ALI_M5632 - boolean "ALi M5632 based 'USB 2.0 Data Link' cables" - depends on USB_USBNET - default y - help - Choose this option if you're using a host-to-host cable - based on this design, which supports USB 2.0 high speed. - -config USB_AN2720 - boolean "AnchorChips 2720 based cables (Xircom PGUNET, ...)" - depends on USB_USBNET - default y - help - Choose this option if you're using a host-to-host cable - based on this design. Note that AnchorChips is now a - Cypress brand. - -config USB_BELKIN - boolean "eTEK based host-to-host cables (Advance, Belkin, ...)" - depends on USB_USBNET - default y - help - Choose this option if you're using a host-to-host cable - based on this design: two NetChip 2890 chips and an Atmel - microcontroller, with LEDs that indicate traffic. - config USB_GENESYS boolean "GeneSys GL620USB-A based cables" default y @@ -182,42 +156,9 @@ config USB_PL2301 Choose this option if you're using a host-to-host cable with one of these chips. -config USB_KC2190 - boolean "KT Technology KC2190 based cables (InstaNet)" - default y - depends on USB_USBNET && EXPERIMENTAL - help - Choose this option if you're using a host-to-host cable - with one of these chips. - comment "Intelligent USB Devices/Gadgets" depends on USB_USBNET -config USB_ARMLINUX - boolean "Embedded ARM Linux links (iPaq, ...)" - depends on USB_USBNET - default y - help - Choose this option to support the "usb-eth" networking driver - used by most of the ARM Linux community with device controllers - such as the SA-11x0 and PXA-25x UDCs, or the tftp capabilities - in some PXA versions of the "blob" boot loader. - - Linux-based "Gumstix" PXA-25x based systems use this protocol - to talk with other Linux systems. - - Although the ROMs shipped with Sharp Zaurus products use a - different link level framing protocol, you can have them use - this simpler protocol by installing a different kernel. - -config USB_EPSON2888 - boolean "Epson 2888 based firmware (DEVELOPMENT)" - depends on USB_USBNET - default y - help - Choose this option to support the usb networking links used - by some sample firmware from Epson. - config USB_ZAURUS boolean "Sharp Zaurus (stock ROMs) and compatible" depends on USB_USBNET @@ -292,6 +233,70 @@ config USB_AX8817X This driver creates an interface named "ethX", where X depends on what other networking devices you have in use. + +config USB_NET_CDC_SUBSET + tristate "Simple USB Network Links (CDC Ethernet subset)" + depends on USB_USBNET + help + This driver module supports USB network devices that can work + without any device-specific information. Select it if you have + one of these drivers. + + Note that while many USB host-to-host cables can work in this mode, + that may mean not being able to talk to Win32 systems or more + commonly not being able to handle certain events (like replugging + the host on the other end) very well. Also, these devices will + not generally have permanently assigned Ethernet addresses. + +config USB_ALI_M5632 + boolean "ALi M5632 based 'USB 2.0 Data Link' cables" + depends on USB_NET_CDC_SUBSET + help + Choose this option if you're using a host-to-host cable + based on this design, which supports USB 2.0 high speed. + +config USB_AN2720 + boolean "AnchorChips 2720 based cables (Xircom PGUNET, ...)" + depends on USB_NET_CDC_SUBSET + help + Choose this option if you're using a host-to-host cable + based on this design. Note that AnchorChips is now a + Cypress brand. + +config USB_BELKIN + boolean "eTEK based host-to-host cables (Advance, Belkin, ...)" + depends on USB_NET_CDC_SUBSET + default y + help + Choose this option if you're using a host-to-host cable + based on this design: two NetChip 2890 chips and an Atmel + microcontroller, with LEDs that indicate traffic. + +config USB_ARMLINUX + boolean "Embedded ARM Linux links (iPaq, ...)" + depends on USB_NET_CDC_SUBSET + default y + help + Choose this option to support the "usb-eth" networking driver + used by most of the ARM Linux community with device controllers + such as the SA-11x0 and PXA-25x UDCs, or the tftp capabilities + in some PXA versions of the "blob" boot loader. + + Linux-based "Gumstix" PXA-25x based systems use this protocol + to talk with other Linux systems. + + Although the ROMs shipped with Sharp Zaurus products use a + different link level framing protocol, you can have them use + this simpler protocol by installing a different kernel. + +config USB_EPSON2888 + boolean "Epson 2888 based firmware (DEVELOPMENT)" + depends on USB_NET_CDC_SUBSET + help + Choose this option to support the usb networking links used + by some sample firmware from Epson. + + config USB_ZD1201 tristate "USB ZD1201 based Wireless device support" depends on NET_RADIO --- gregkh-2.6.orig/drivers/usb/net/usbnet.h 2005-09-08 14:08:36.000000000 -0700 +++ gregkh-2.6/drivers/usb/net/usbnet.h 2005-09-08 14:08:37.000000000 -0700 @@ -24,7 +24,7 @@ #define __USBNET_H -/* interface from usbnet core to each USB networking device we handle */ +/* interface from usbnet core to each USB networking link we handle */ struct usbnet { /* housekeeping */ struct usb_device *udev; @@ -62,6 +62,10 @@ struct usbnet { # define EVENT_LINK_RESET 4 }; +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 { @@ -111,6 +115,15 @@ struct driver_info { 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 *); + /* we record the state for each of our queued skbs */ enum skb_state { --- gregkh-2.6.orig/drivers/usb/net/usbnet.c 2005-09-08 14:08:36.000000000 -0700 +++ gregkh-2.6/drivers/usb/net/usbnet.c 2005-09-08 14:08:37.000000000 -0700 @@ -322,48 +322,6 @@ static void skb_return (struct usbnet *d } -#ifdef CONFIG_USB_ALI_M5632 -#define HAVE_HARDWARE - -/*------------------------------------------------------------------------- - * - * ALi M5632 driver ... does high speed - * - *-------------------------------------------------------------------------*/ - -static const struct driver_info ali_m5632_info = { - .description = "ALi M5632", -}; - - -#endif - - -#ifdef CONFIG_USB_AN2720 -#define HAVE_HARDWARE - -/*------------------------------------------------------------------------- - * - * AnchorChips 2720 driver ... http://www.cypress.com - * - * This doesn't seem to have a way to detect whether the peer is - * connected, or need any reset handshaking. It's got pretty big - * internal buffers (handles most of a frame's worth of data). - * Chip data sheets don't describe any vendor control messages. - * - *-------------------------------------------------------------------------*/ - -static const struct driver_info an2720_info = { - .description = "AnchorChips/Cypress 2720", - // no reset available! - // no check_connect available! - - .in = 2, .out = 2, // direction distinguishes these -}; - -#endif /* CONFIG_USB_AN2720 */ - - #ifdef CONFIG_USB_AX8817X /* ASIX AX8817X based USB 2.0 Ethernet Devices */ @@ -1142,25 +1100,6 @@ static const struct driver_info ax88772_ -#ifdef CONFIG_USB_BELKIN -#define HAVE_HARDWARE - -/*------------------------------------------------------------------------- - * - * Belkin F5U104 ... two NetChip 2280 devices + Atmel microcontroller - * - * ... also two eTEK designs, including one sold as "Advance USBNET" - * - *-------------------------------------------------------------------------*/ - -static const struct driver_info belkin_info = { - .description = "Belkin, eTEK, or compatible", -}; - -#endif /* CONFIG_USB_BELKIN */ - - - /*------------------------------------------------------------------------- * * Communications Device Class declarations. @@ -1538,32 +1477,6 @@ static const struct driver_info cdc_info -#ifdef CONFIG_USB_EPSON2888 -#define HAVE_HARDWARE - -/*------------------------------------------------------------------------- - * - * EPSON USB clients - * - * This is the same idea as Linux PDAs (below) except the firmware in the - * device might not be Tux-powered. Epson provides reference firmware that - * implements this interface. Product developers can reuse or modify that - * code, such as by using their own product and vendor codes. - * - * Support was from Juro Bystricky - * - *-------------------------------------------------------------------------*/ - -static const struct driver_info epson2888_info = { - .description = "Epson USB Device", - .check_connect = always_connected, - - .in = 4, .out = 3, -}; - -#endif /* CONFIG_USB_EPSON2888 */ - - #ifdef CONFIG_USB_GENESYS #define HAVE_HARDWARE @@ -2495,52 +2408,6 @@ static const struct driver_info prolific #endif /* CONFIG_USB_PL2301 */ -#ifdef CONFIG_USB_KC2190 -#define HAVE_HARDWARE -static const struct driver_info kc2190_info = { - .description = "KC Technology KC-190", -}; -#endif /* CONFIG_USB_KC2190 */ - - -#ifdef CONFIG_USB_ARMLINUX -#define HAVE_HARDWARE - -/*------------------------------------------------------------------------- - * - * Intel's SA-1100 chip integrates basic USB support, and is used - * in PDAs like some iPaqs, the Yopy, some Zaurus models, and more. - * When they run Linux, arch/arm/mach-sa1100/usb-eth.c may be used to - * network using minimal USB framing data. - * - * This describes the driver currently in standard ARM Linux kernels. - * The Zaurus uses a different driver (see later). - * - * PXA25x and PXA210 use XScale cores (ARM v5TE) with better USB support - * and different USB endpoint numbering than the SA1100 devices. The - * mach-pxa/usb-eth.c driver re-uses the device ids from mach-sa1100 - * so we rely on the endpoint descriptors. - * - *-------------------------------------------------------------------------*/ - -static const struct driver_info linuxdev_info = { - .description = "Linux Device", - .check_connect = always_connected, -}; - -static const struct driver_info yopy_info = { - .description = "Yopy", - .check_connect = always_connected, -}; - -static const struct driver_info blob_info = { - .description = "Boot Loader OBject", - .check_connect = always_connected, -}; - -#endif /* CONFIG_USB_ARMLINUX */ - - #ifdef CONFIG_USB_ZAURUS #define HAVE_HARDWARE @@ -3575,7 +3442,7 @@ static void usbnet_bh (unsigned long par // precondition: never called in_interrupt -static void usbnet_disconnect (struct usb_interface *intf) +void usbnet_disconnect (struct usb_interface *intf) { struct usbnet *dev; struct usb_device *xdev; @@ -3589,7 +3456,8 @@ static void usbnet_disconnect (struct us xdev = interface_to_usbdev (intf); if (netif_msg_probe (dev)) - devinfo (dev, "unregister usbnet usb-%s-%s, %s", + devinfo (dev, "unregister '%s' usb-%s-%s, %s", + intf->dev.driver->name, xdev->bus->bus_name, xdev->devpath, dev->driver_info->description); @@ -3605,6 +3473,7 @@ static void usbnet_disconnect (struct us free_netdev(net); usb_put_dev (xdev); } +EXPORT_SYMBOL_GPL(usbnet_disconnect); /*-------------------------------------------------------------------------*/ @@ -3613,7 +3482,7 @@ static struct ethtool_ops usbnet_ethtool // precondition: never called in_interrupt -static int +int usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) { struct usbnet *dev; @@ -3719,8 +3588,9 @@ usbnet_probe (struct usb_interface *udev if (status) goto out3; if (netif_msg_probe (dev)) - devinfo (dev, "register usbnet at usb-%s-%s, %s, " + devinfo (dev, "register '%s' at usb-%s-%s, %s, " "%02x:%02x:%02x:%02x:%02x:%02x", + udev->dev.driver->name, xdev->bus->bus_name, xdev->devpath, dev->driver_info->description, net->dev_addr [0], net->dev_addr [1], @@ -3744,12 +3614,15 @@ out: usb_put_dev(xdev); return status; } +EXPORT_SYMBOL_GPL(usbnet_probe); /*-------------------------------------------------------------------------*/ -#ifdef CONFIG_PM +/* FIXME these suspend/resume methods assume non-CDC style + * devices, with only one interface. + */ -static int usbnet_suspend (struct usb_interface *intf, pm_message_t message) +int usbnet_suspend (struct usb_interface *intf, pm_message_t message) { struct usbnet *dev = usb_get_intfdata(intf); @@ -3762,8 +3635,9 @@ static int usbnet_suspend (struct usb_in intf->dev.power.power_state = PMSG_SUSPEND; return 0; } +EXPORT_SYMBOL_GPL(usbnet_suspend); -static int usbnet_resume (struct usb_interface *intf) +int usbnet_resume (struct usb_interface *intf) { struct usbnet *dev = usb_get_intfdata(intf); @@ -3772,13 +3646,8 @@ static int usbnet_resume (struct usb_int tasklet_schedule (&dev->bh); return 0; } +EXPORT_SYMBOL_GPL(usbnet_resume); -#else /* !CONFIG_PM */ - -#define usbnet_suspend NULL -#define usbnet_resume NULL - -#endif /* CONFIG_PM */ /*-------------------------------------------------------------------------*/ @@ -3793,36 +3662,6 @@ static int usbnet_resume (struct usb_int static const struct usb_device_id products [] = { -#ifdef CONFIG_USB_ALI_M5632 -{ - USB_DEVICE (0x0402, 0x5632), // ALi defaults - .driver_info = (unsigned long) &ali_m5632_info, -}, -#endif - -#ifdef CONFIG_USB_AN2720 -{ - USB_DEVICE (0x0547, 0x2720), // AnchorChips defaults - .driver_info = (unsigned long) &an2720_info, -}, { - USB_DEVICE (0x0547, 0x2727), // Xircom PGUNET - .driver_info = (unsigned long) &an2720_info, -}, -#endif - -#ifdef CONFIG_USB_BELKIN -{ - USB_DEVICE (0x050d, 0x0004), // Belkin - .driver_info = (unsigned long) &belkin_info, -}, { - USB_DEVICE (0x056c, 0x8100), // eTEK - .driver_info = (unsigned long) &belkin_info, -}, { - USB_DEVICE (0x0525, 0x9901), // Advance USBNET (eTEK) - .driver_info = (unsigned long) &belkin_info, -}, -#endif - #ifdef CONFIG_USB_AX8817X { // Linksys USB200M @@ -3879,13 +3718,6 @@ static const struct usb_device_id produc }, #endif -#ifdef CONFIG_USB_EPSON2888 -{ - USB_DEVICE (0x0525, 0x2888), // EPSON USB client - .driver_info = (unsigned long) &epson2888_info, -}, -#endif - #ifdef CONFIG_USB_GENESYS { USB_DEVICE (0x05e3, 0x0502), // GL620USB-A @@ -3916,13 +3748,6 @@ static const struct usb_device_id produc }, #endif -#ifdef CONFIG_USB_KC2190 -{ - USB_DEVICE (0x050f, 0x0190), // KC-190 - .driver_info = (unsigned long) &kc2190_info, -}, -#endif - #ifdef CONFIG_USB_RNDIS { /* RNDIS is MSFT's un-official variant of CDC ACM */ @@ -3931,41 +3756,6 @@ static const struct usb_device_id produc }, #endif -#ifdef CONFIG_USB_ARMLINUX -/* - * SA-1100 using standard ARM Linux kernels, or compatible. - * Often used when talking to Linux PDAs (iPaq, Yopy, etc). - * The sa-1100 "usb-eth" driver handles the basic framing. - * - * PXA25x or PXA210 ... these use a "usb-eth" driver much like - * the sa1100 one, but hardware uses different endpoint numbers. - * - * Or the Linux "Ethernet" gadget on hardware that can't talk - * CDC Ethernet (e.g., no altsettings), in either of two modes: - * - acting just like the old "usb-eth" firmware, though - * the implementation is different - * - supporting RNDIS as the first/default configuration for - * MS-Windows interop; Linux needs to use the other config - */ -{ - // 1183 = 0x049F, both used as hex values? - // Compaq "Itsy" vendor/product id - USB_DEVICE (0x049F, 0x505A), // usb-eth, or compatible - .driver_info = (unsigned long) &linuxdev_info, -}, { - USB_DEVICE (0x0E7E, 0x1001), // G.Mate "Yopy" - .driver_info = (unsigned long) &yopy_info, -}, { - USB_DEVICE (0x8086, 0x07d3), // "blob" bootloader - .driver_info = (unsigned long) &blob_info, -}, { - // Linux Ethernet/RNDIS gadget on pxa210/25x/26x - // e.g. Gumstix, current OpenZaurus, ... - USB_DEVICE_VER (0x0525, 0xa4a2, 0x0203, 0x0203), - .driver_info = (unsigned long) &linuxdev_info, -}, -#endif - #if defined(CONFIG_USB_ZAURUS) || defined(CONFIG_USB_CDCETHER) /* * SA-1100 based Sharp Zaurus ("collie"), or compatible. --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ gregkh-2.6/drivers/usb/net/cdc_subset.c 2005-09-08 14:08:37.000000000 -0700 @@ -0,0 +1,335 @@ +/* + * Simple "CDC Subset" USB Networking Links + * Copyright (C) 2000-2005 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 + */ + +#include +#ifdef CONFIG_USB_DEBUG +# define DEBUG +#endif +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "usbnet.h" + + +/* + * This supports simple USB network links that don't require any special + * framing or hardware control operations. The protocol used here is a + * strict subset of CDC Ethernet, with three basic differences reflecting + * the goal that almost any hardware should run it: + * + * - Minimal runtime control: one interface, no altsettings, and + * no vendor or class specific control requests. If a device is + * configured, it is allowed to exchange packets with the host. + * Fancier models would mean not working on some hardware. + * + * - Minimal manufacturing control: no IEEE "Organizationally + * Unique ID" required, or an EEPROMs to store one. Each host uses + * one random "locally assigned" Ethernet address instead, which can + * of course be overridden using standard tools like "ifconfig". + * (With 2^46 such addresses, same-net collisions are quite rare.) + * + * - There is no additional framing data for USB. Packets are written + * exactly as in CDC Ethernet, starting with an Ethernet header and + * terminated by a short packet. However, the host will never send a + * zero length packet; some systems can't handle those robustly. + * + * Anything that can transmit and receive USB bulk packets can implement + * this protocol. That includes both smart peripherals and quite a lot + * of "host-to-host" USB cables (which embed two devices back-to-back). + * + * Note that although Linux may use many of those host-to-host links + * with this "cdc_subset" framing, that doesn't mean there may not be a + * better approach. Handling the "other end unplugs/replugs" scenario + * well tends to require chip-specific vendor requests. Also, Windows + * peers at the other end of host-to-host cables may expect their own + * framing to be used rather than this "cdc_subset" model. + */ + +#if defined(CONFIG_USB_EPSON2888) || defined(CONFIG_USB_ARMLINUX) +/* PDA style devices are always connected if present */ +static int always_connected (struct usbnet *dev) +{ + return 0; +} +#endif + +#ifdef CONFIG_USB_ALI_M5632 +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * ALi M5632 driver ... does high speed + * + *-------------------------------------------------------------------------*/ + +static const struct driver_info ali_m5632_info = { + .description = "ALi M5632", +}; + + +#endif + + +#ifdef CONFIG_USB_AN2720 +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * AnchorChips 2720 driver ... http://www.cypress.com + * + * This doesn't seem to have a way to detect whether the peer is + * connected, or need any reset handshaking. It's got pretty big + * internal buffers (handles most of a frame's worth of data). + * Chip data sheets don't describe any vendor control messages. + * + *-------------------------------------------------------------------------*/ + +static const struct driver_info an2720_info = { + .description = "AnchorChips/Cypress 2720", + // no reset available! + // no check_connect available! + + .in = 2, .out = 2, // direction distinguishes these +}; + +#endif /* CONFIG_USB_AN2720 */ + + +#ifdef CONFIG_USB_BELKIN +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * Belkin F5U104 ... two NetChip 2280 devices + Atmel AVR microcontroller + * + * ... also two eTEK designs, including one sold as "Advance USBNET" + * + *-------------------------------------------------------------------------*/ + +static const struct driver_info belkin_info = { + .description = "Belkin, eTEK, or compatible", +}; + +#endif /* CONFIG_USB_BELKIN */ + + + +#ifdef CONFIG_USB_EPSON2888 +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * EPSON USB clients + * + * This is the same idea as Linux PDAs (below) except the firmware in the + * device might not be Tux-powered. Epson provides reference firmware that + * implements this interface. Product developers can reuse or modify that + * code, such as by using their own product and vendor codes. + * + * Support was from Juro Bystricky + * + *-------------------------------------------------------------------------*/ + +static const struct driver_info epson2888_info = { + .description = "Epson USB Device", + .check_connect = always_connected, + + .in = 4, .out = 3, +}; + +#endif /* CONFIG_USB_EPSON2888 */ + + +#ifdef CONFIG_USB_KC2190 +#define HAVE_HARDWARE +static const struct driver_info kc2190_info = { + .description = "KC Technology KC-190", +}; +#endif /* CONFIG_USB_KC2190 */ + + +#ifdef CONFIG_USB_ARMLINUX +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * Intel's SA-1100 chip integrates basic USB support, and is used + * in PDAs like some iPaqs, the Yopy, some Zaurus models, and more. + * When they run Linux, arch/arm/mach-sa1100/usb-eth.c may be used to + * network using minimal USB framing data. + * + * This describes the driver currently in standard ARM Linux kernels. + * The Zaurus uses a different driver (see later). + * + * PXA25x and PXA210 use XScale cores (ARM v5TE) with better USB support + * and different USB endpoint numbering than the SA1100 devices. The + * mach-pxa/usb-eth.c driver re-uses the device ids from mach-sa1100 + * so we rely on the endpoint descriptors. + * + *-------------------------------------------------------------------------*/ + +static const struct driver_info linuxdev_info = { + .description = "Linux Device", + .check_connect = always_connected, +}; + +static const struct driver_info yopy_info = { + .description = "Yopy", + .check_connect = always_connected, +}; + +static const struct driver_info blob_info = { + .description = "Boot Loader OBject", + .check_connect = always_connected, +}; + +#endif /* CONFIG_USB_ARMLINUX */ + + +/*-------------------------------------------------------------------------*/ + +#ifndef HAVE_HARDWARE +#error You need to configure some hardware for this driver +#endif + +/* + * chip vendor names won't normally be on the cables, and + * may not be on the device. + */ + +static const struct usb_device_id products [] = { + +#ifdef CONFIG_USB_ALI_M5632 +{ + USB_DEVICE (0x0402, 0x5632), // ALi defaults + .driver_info = (unsigned long) &ali_m5632_info, +}, +#endif + +#ifdef CONFIG_USB_AN2720 +{ + USB_DEVICE (0x0547, 0x2720), // AnchorChips defaults + .driver_info = (unsigned long) &an2720_info, +}, { + USB_DEVICE (0x0547, 0x2727), // Xircom PGUNET + .driver_info = (unsigned long) &an2720_info, +}, +#endif + +#ifdef CONFIG_USB_BELKIN +{ + USB_DEVICE (0x050d, 0x0004), // Belkin + .driver_info = (unsigned long) &belkin_info, +}, { + USB_DEVICE (0x056c, 0x8100), // eTEK + .driver_info = (unsigned long) &belkin_info, +}, { + USB_DEVICE (0x0525, 0x9901), // Advance USBNET (eTEK) + .driver_info = (unsigned long) &belkin_info, +}, +#endif + +#ifdef CONFIG_USB_EPSON2888 +{ + USB_DEVICE (0x0525, 0x2888), // EPSON USB client + .driver_info = (unsigned long) &epson2888_info, +}, +#endif + +#ifdef CONFIG_USB_KC2190 +{ + USB_DEVICE (0x050f, 0x0190), // KC-190 + .driver_info = (unsigned long) &kc2190_info, +}, +#endif + +#ifdef CONFIG_USB_ARMLINUX +/* + * SA-1100 using standard ARM Linux kernels, or compatible. + * Often used when talking to Linux PDAs (iPaq, Yopy, etc). + * The sa-1100 "usb-eth" driver handles the basic framing. + * + * PXA25x or PXA210 ... these use a "usb-eth" driver much like + * the sa1100 one, but hardware uses different endpoint numbers. + * + * Or the Linux "Ethernet" gadget on hardware that can't talk + * CDC Ethernet (e.g., no altsettings), in either of two modes: + * - acting just like the old "usb-eth" firmware, though + * the implementation is different + * - supporting RNDIS as the first/default configuration for + * MS-Windows interop; Linux needs to use the other config + */ +{ + // 1183 = 0x049F, both used as hex values? + // Compaq "Itsy" vendor/product id + USB_DEVICE (0x049F, 0x505A), // usb-eth, or compatible + .driver_info = (unsigned long) &linuxdev_info, +}, { + USB_DEVICE (0x0E7E, 0x1001), // G.Mate "Yopy" + .driver_info = (unsigned long) &yopy_info, +}, { + USB_DEVICE (0x8086, 0x07d3), // "blob" bootloader + .driver_info = (unsigned long) &blob_info, +}, { + // Linux Ethernet/RNDIS gadget on pxa210/25x/26x, second config + // e.g. Gumstix, current OpenZaurus, ... + USB_DEVICE_VER (0x0525, 0xa4a2, 0x0203, 0x0203), + .driver_info = (unsigned long) &linuxdev_info, +}, +#endif + + { }, // END +}; +MODULE_DEVICE_TABLE(usb, products); + +/*-------------------------------------------------------------------------*/ + +static struct usb_driver cdc_subset_driver = { + .owner = THIS_MODULE, + .name = "cdc_subset", + .probe = usbnet_probe, + .suspend = usbnet_suspend, + .resume = usbnet_resume, + .disconnect = usbnet_disconnect, + .id_table = products, +}; + +static int __init cdc_subset_init(void) +{ + return usb_register(&cdc_subset_driver); +} +module_init(cdc_subset_init); + +static void __exit cdc_subset_exit(void) +{ + usb_deregister(&cdc_subset_driver); +} +module_exit(cdc_subset_exit); + +MODULE_AUTHOR("David Brownell"); +MODULE_DESCRIPTION("Simple 'CDC Subset' USB networking links"); +MODULE_LICENSE("GPL");