Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * ether.c -- Ethernet gadget driver, with CDC and non-CDC options |
| 3 | * |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 4 | * Copyright (C) 2003-2005,2008 David Brownell |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * Copyright (C) 2003-2004 Robert Schwebel, Benedikt Spranger |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 6 | * Copyright (C) 2008 Nokia Corporation |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | */ |
| 22 | |
David Brownell | 0cf4f2d | 2007-08-02 00:00:38 -0700 | [diff] [blame] | 23 | /* #define VERBOSE_DEBUG */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #include <linux/kernel.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include <linux/utsname.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 28 | #include "u_ether.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | |
| 31 | /* |
| 32 | * Ethernet gadget driver -- with CDC and non-CDC options |
| 33 | * Builds on hardware support for a full duplex link. |
| 34 | * |
| 35 | * CDC Ethernet is the standard USB solution for sending Ethernet frames |
| 36 | * using USB. Real hardware tends to use the same framing protocol but look |
| 37 | * different for control features. This driver strongly prefers to use |
| 38 | * this USB-IF standard as its open-systems interoperability solution; |
| 39 | * most host side USB stacks (except from Microsoft) support it. |
| 40 | * |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 41 | * This is sometimes called "CDC ECM" (Ethernet Control Model) to support |
| 42 | * TLA-soup. "CDC ACM" (Abstract Control Model) is for modems, and a new |
| 43 | * "CDC EEM" (Ethernet Emulation Model) is starting to spread. |
| 44 | * |
| 45 | * There's some hardware that can't talk CDC ECM. We make that hardware |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | * implement a "minimalist" vendor-agnostic CDC core: same framing, but |
David Brownell | 11d5489 | 2006-12-11 15:59:04 -0800 | [diff] [blame] | 47 | * link-level setup only requires activating the configuration. Only the |
| 48 | * endpoint descriptors, and product/vendor IDs, are relevant; no control |
| 49 | * operations are available. Linux supports it, but other host operating |
| 50 | * systems may not. (This is a subset of CDC Ethernet.) |
| 51 | * |
| 52 | * It turns out that if you add a few descriptors to that "CDC Subset", |
| 53 | * (Windows) host side drivers from MCCI can treat it as one submode of |
| 54 | * a proprietary scheme called "SAFE" ... without needing to know about |
| 55 | * specific product/vendor IDs. So we do that, making it easier to use |
| 56 | * those MS-Windows drivers. Those added descriptors make it resemble a |
| 57 | * CDC MDLM device, but they don't change device behavior at all. (See |
| 58 | * MCCI Engineering report 950198 "SAFE Networking Functions".) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | * |
| 60 | * A third option is also in use. Rather than CDC Ethernet, or something |
| 61 | * simpler, Microsoft pushes their own approach: RNDIS. The published |
| 62 | * RNDIS specs are ambiguous and appear to be incomplete, and are also |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 63 | * needlessly complex. They borrow more from CDC ACM than CDC ECM. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | */ |
| 65 | |
| 66 | #define DRIVER_DESC "Ethernet Gadget" |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 67 | #define DRIVER_VERSION "Memorial Day 2008" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 69 | #ifdef CONFIG_USB_ETH_RNDIS |
| 70 | #define PREFIX "RNDIS/" |
| 71 | #else |
| 72 | #define PREFIX "" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | #endif |
| 74 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 75 | /* |
| 76 | * This driver aims for interoperability by using CDC ECM unless |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | * |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 78 | * can_support_ecm() |
| 79 | * |
| 80 | * returns false, in which case it supports the CDC Subset. By default, |
| 81 | * that returns true; most hardware has no problems with CDC ECM, that's |
| 82 | * a good default. Previous versions of this driver had no default; this |
| 83 | * version changes that, removing overhead for new controller support. |
| 84 | * |
| 85 | * IF YOUR HARDWARE CAN'T SUPPORT CDC ECM, UPDATE THAT ROUTINE! |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 88 | static inline bool has_rndis(void) |
| 89 | { |
| 90 | #ifdef CONFIG_USB_ETH_RNDIS |
| 91 | return true; |
| 92 | #else |
| 93 | return false; |
| 94 | #endif |
| 95 | } |
| 96 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | /*-------------------------------------------------------------------------*/ |
| 98 | |
David Brownell | 33376c1 | 2008-08-18 17:45:07 -0700 | [diff] [blame] | 99 | /* |
| 100 | * Kbuild is not very cooperative with respect to linking separately |
| 101 | * compiled library objects into one module. So for now we won't use |
| 102 | * separate compilation ... ensuring init/exit sections work to shrink |
| 103 | * the runtime footprint, and giving us at least some parts of what |
| 104 | * a "gcc --combine ... part1.c part2.c part3.c ... " build would. |
| 105 | */ |
| 106 | #include "composite.c" |
| 107 | #include "usbstring.c" |
| 108 | #include "config.c" |
| 109 | #include "epautoconf.c" |
| 110 | |
| 111 | #include "f_ecm.c" |
| 112 | #include "f_subset.c" |
| 113 | #ifdef CONFIG_USB_ETH_RNDIS |
| 114 | #include "f_rndis.c" |
| 115 | #include "rndis.c" |
| 116 | #endif |
| 117 | #include "u_ether.c" |
| 118 | |
| 119 | /*-------------------------------------------------------------------------*/ |
| 120 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | /* DO NOT REUSE THESE IDs with a protocol-incompatible driver!! Ever!! |
| 122 | * Instead: allocate your own, using normal USB-IF procedures. |
| 123 | */ |
| 124 | |
| 125 | /* Thanks to NetChip Technologies for donating this product ID. |
| 126 | * It's for devices with only CDC Ethernet configurations. |
| 127 | */ |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 128 | #define CDC_VENDOR_NUM 0x0525 /* NetChip */ |
| 129 | #define CDC_PRODUCT_NUM 0xa4a1 /* Linux-USB Ethernet Gadget */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | |
| 131 | /* For hardware that can't talk CDC, we use the same vendor ID that |
| 132 | * ARM Linux has used for ethernet-over-usb, both with sa1100 and |
| 133 | * with pxa250. We're protocol-compatible, if the host-side drivers |
| 134 | * use the endpoint descriptors. bcdDevice (version) is nonzero, so |
| 135 | * drivers that need to hard-wire endpoint numbers have a hook. |
| 136 | * |
| 137 | * The protocol is a minimal subset of CDC Ether, which works on any bulk |
| 138 | * hardware that's not deeply broken ... even on hardware that can't talk |
| 139 | * RNDIS (like SA-1100, with no interrupt endpoint, or anything that |
| 140 | * doesn't handle control-OUT). |
| 141 | */ |
| 142 | #define SIMPLE_VENDOR_NUM 0x049f |
| 143 | #define SIMPLE_PRODUCT_NUM 0x505a |
| 144 | |
| 145 | /* For hardware that can talk RNDIS and either of the above protocols, |
| 146 | * use this ID ... the windows INF files will know it. Unless it's |
| 147 | * used with CDC Ethernet, Linux 2.4 hosts will need updates to choose |
| 148 | * the non-RNDIS configuration. |
| 149 | */ |
| 150 | #define RNDIS_VENDOR_NUM 0x0525 /* NetChip */ |
| 151 | #define RNDIS_PRODUCT_NUM 0xa4a2 /* Ethernet/RNDIS Gadget */ |
| 152 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | /*-------------------------------------------------------------------------*/ |
| 154 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 155 | static struct usb_device_descriptor device_desc = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | .bLength = sizeof device_desc, |
| 157 | .bDescriptorType = USB_DT_DEVICE, |
| 158 | |
Harvey Harrison | 551509d | 2009-02-11 14:11:36 -0800 | [diff] [blame] | 159 | .bcdUSB = cpu_to_le16 (0x0200), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | |
| 161 | .bDeviceClass = USB_CLASS_COMM, |
| 162 | .bDeviceSubClass = 0, |
| 163 | .bDeviceProtocol = 0, |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 164 | /* .bMaxPacketSize0 = f(hardware) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 166 | /* Vendor and product id defaults change according to what configs |
| 167 | * we support. (As does bNumConfigurations.) These values can |
| 168 | * also be overridden by module parameters. |
| 169 | */ |
Harvey Harrison | 551509d | 2009-02-11 14:11:36 -0800 | [diff] [blame] | 170 | .idVendor = cpu_to_le16 (CDC_VENDOR_NUM), |
| 171 | .idProduct = cpu_to_le16 (CDC_PRODUCT_NUM), |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 172 | /* .bcdDevice = f(hardware) */ |
| 173 | /* .iManufacturer = DYNAMIC */ |
| 174 | /* .iProduct = DYNAMIC */ |
| 175 | /* NO SERIAL NUMBER */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | .bNumConfigurations = 1, |
| 177 | }; |
| 178 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 179 | static struct usb_otg_descriptor otg_descriptor = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | .bLength = sizeof otg_descriptor, |
| 181 | .bDescriptorType = USB_DT_OTG, |
| 182 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 183 | /* REVISIT SRP-only hardware is possible, although |
| 184 | * it would not be called "OTG" ... |
| 185 | */ |
| 186 | .bmAttributes = USB_OTG_SRP | USB_OTG_HNP, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | }; |
| 188 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 189 | static const struct usb_descriptor_header *otg_desc[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | (struct usb_descriptor_header *) &otg_descriptor, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | NULL, |
| 192 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 195 | /* string IDs are assigned dynamically */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 197 | #define STRING_MANUFACTURER_IDX 0 |
| 198 | #define STRING_PRODUCT_IDX 1 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 200 | static char manufacturer[50]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 202 | static struct usb_string strings_dev[] = { |
| 203 | [STRING_MANUFACTURER_IDX].s = manufacturer, |
| 204 | [STRING_PRODUCT_IDX].s = PREFIX DRIVER_DESC, |
| 205 | { } /* end of list */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | }; |
| 207 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 208 | static struct usb_gadget_strings stringtab_dev = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | .language = 0x0409, /* en-us */ |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 210 | .strings = strings_dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | }; |
| 212 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 213 | static struct usb_gadget_strings *dev_strings[] = { |
| 214 | &stringtab_dev, |
| 215 | NULL, |
| 216 | }; |
| 217 | |
| 218 | static u8 hostaddr[ETH_ALEN]; |
| 219 | |
| 220 | /*-------------------------------------------------------------------------*/ |
| 221 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | /* |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 223 | * We may not have an RNDIS configuration, but if we do it needs to be |
| 224 | * the first one present. That's to make Microsoft's drivers happy, |
| 225 | * and to follow DOCSIS 1.0 (cable modem standard). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | */ |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 227 | static int __init rndis_do_config(struct usb_configuration *c) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | { |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 229 | /* FIXME alloc iConfiguration string, set it in c->strings */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 231 | if (gadget_is_otg(c->cdev->gadget)) { |
| 232 | c->descriptors = otg_desc; |
| 233 | c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | } |
| 235 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 236 | return rndis_bind_config(c, hostaddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | } |
| 238 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 239 | static struct usb_configuration rndis_config_driver = { |
| 240 | .label = "RNDIS", |
| 241 | .bind = rndis_do_config, |
| 242 | .bConfigurationValue = 2, |
| 243 | /* .iConfiguration = DYNAMIC */ |
| 244 | .bmAttributes = USB_CONFIG_ATT_SELFPOWER, |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 245 | }; |
| 246 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | /*-------------------------------------------------------------------------*/ |
| 248 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 249 | /* |
| 250 | * We _always_ have an ECM or CDC Subset configuration. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | */ |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 252 | static int __init eth_do_config(struct usb_configuration *c) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | { |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 254 | /* FIXME alloc iConfiguration string, set it in c->strings */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 256 | if (gadget_is_otg(c->cdev->gadget)) { |
| 257 | c->descriptors = otg_desc; |
| 258 | c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | } |
| 260 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 261 | if (can_support_ecm(c->cdev->gadget)) |
| 262 | return ecm_bind_config(c, hostaddr); |
| 263 | else |
| 264 | return geth_bind_config(c, hostaddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | } |
| 266 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 267 | static struct usb_configuration eth_config_driver = { |
| 268 | /* .label = f(hardware) */ |
| 269 | .bind = eth_do_config, |
| 270 | .bConfigurationValue = 1, |
| 271 | /* .iConfiguration = DYNAMIC */ |
| 272 | .bmAttributes = USB_CONFIG_ATT_SELFPOWER, |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 273 | }; |
| 274 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | /*-------------------------------------------------------------------------*/ |
| 276 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 277 | static int __init eth_bind(struct usb_composite_dev *cdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | { |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 279 | int gcnum; |
| 280 | struct usb_gadget *gadget = cdev->gadget; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | int status; |
David Brownell | 7e27f18 | 2006-06-13 09:54:40 -0700 | [diff] [blame] | 282 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 283 | /* set up network link layer */ |
| 284 | status = gether_setup(cdev->gadget, hostaddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | if (status < 0) |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 286 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 288 | /* set up main config label and device descriptor */ |
| 289 | if (can_support_ecm(cdev->gadget)) { |
| 290 | /* ECM */ |
| 291 | eth_config_driver.label = "CDC Ethernet (ECM)"; |
| 292 | } else { |
| 293 | /* CDC Subset */ |
| 294 | eth_config_driver.label = "CDC Subset/SAFE"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 296 | device_desc.idVendor = cpu_to_le16(SIMPLE_VENDOR_NUM), |
| 297 | device_desc.idProduct = cpu_to_le16(SIMPLE_PRODUCT_NUM), |
| 298 | device_desc.bDeviceClass = USB_CLASS_VENDOR_SPEC; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | } |
| 300 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 301 | if (has_rndis()) { |
| 302 | /* RNDIS plus ECM-or-Subset */ |
| 303 | device_desc.idVendor = cpu_to_le16(RNDIS_VENDOR_NUM), |
| 304 | device_desc.idProduct = cpu_to_le16(RNDIS_PRODUCT_NUM), |
| 305 | device_desc.bNumConfigurations = 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | } |
| 307 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 308 | gcnum = usb_gadget_controller_number(gadget); |
David Brownell | 91e79c9 | 2005-07-13 15:18:30 -0700 | [diff] [blame] | 309 | if (gcnum >= 0) |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 310 | device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum); |
David Brownell | 91e79c9 | 2005-07-13 15:18:30 -0700 | [diff] [blame] | 311 | else { |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 312 | /* We assume that can_support_ecm() tells the truth; |
| 313 | * but if the controller isn't recognized at all then |
| 314 | * that assumption is a bit more likely to be wrong. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | */ |
David Brownell | 33376c1 | 2008-08-18 17:45:07 -0700 | [diff] [blame] | 316 | dev_warn(&gadget->dev, |
| 317 | "controller '%s' not recognized; trying %s\n", |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 318 | gadget->name, |
| 319 | eth_config_driver.label); |
| 320 | device_desc.bcdDevice = |
Harvey Harrison | 551509d | 2009-02-11 14:11:36 -0800 | [diff] [blame] | 321 | cpu_to_le16(0x0300 | 0x0099); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | } |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 323 | |
| 324 | |
| 325 | /* Allocate string descriptor numbers ... note that string |
| 326 | * contents can be overridden by the composite_dev glue. |
| 327 | */ |
| 328 | |
| 329 | /* device descriptor strings: manufacturer, product */ |
| 330 | snprintf(manufacturer, sizeof manufacturer, "%s %s with %s", |
Serge E. Hallyn | 96b644b | 2006-10-02 02:18:13 -0700 | [diff] [blame] | 331 | init_utsname()->sysname, init_utsname()->release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | gadget->name); |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 333 | status = usb_string_id(cdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | if (status < 0) |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 335 | goto fail; |
| 336 | strings_dev[STRING_MANUFACTURER_IDX].id = status; |
| 337 | device_desc.iManufacturer = status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 339 | status = usb_string_id(cdev); |
| 340 | if (status < 0) |
| 341 | goto fail; |
| 342 | strings_dev[STRING_PRODUCT_IDX].id = status; |
| 343 | device_desc.iProduct = status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 345 | /* register our configuration(s); RNDIS first, if it's used */ |
| 346 | if (has_rndis()) { |
| 347 | status = usb_add_config(cdev, &rndis_config_driver); |
| 348 | if (status < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 352 | status = usb_add_config(cdev, ð_config_driver); |
| 353 | if (status < 0) |
| 354 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | |
David Brownell | 33376c1 | 2008-08-18 17:45:07 -0700 | [diff] [blame] | 356 | dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n", |
| 357 | DRIVER_DESC); |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 358 | |
| 359 | return 0; |
| 360 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | fail: |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 362 | gether_cleanup(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | return status; |
| 364 | } |
| 365 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 366 | static int __exit eth_unbind(struct usb_composite_dev *cdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | { |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 368 | gether_cleanup(); |
| 369 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | } |
| 371 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 372 | static struct usb_composite_driver eth_driver = { |
| 373 | .name = "g_ether", |
| 374 | .dev = &device_desc, |
| 375 | .strings = dev_strings, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | .bind = eth_bind, |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 377 | .unbind = __exit_p(eth_unbind), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | }; |
| 379 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 380 | MODULE_DESCRIPTION(PREFIX DRIVER_DESC); |
| 381 | MODULE_AUTHOR("David Brownell, Benedikt Spanger"); |
| 382 | MODULE_LICENSE("GPL"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 384 | static int __init init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | { |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 386 | return usb_composite_register(ð_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | } |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 388 | module_init(init); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 390 | static void __exit cleanup(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | { |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 392 | usb_composite_unregister(ð_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | } |
David Brownell | 0391c82 | 2008-06-19 18:20:11 -0700 | [diff] [blame] | 394 | module_exit(cleanup); |