diff options
| author | Jeff Garzik <jeff@garzik.org> | 2007-05-09 21:31:55 -0400 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-05-09 21:31:55 -0400 |
| commit | 5b2fc499917e5897a13add780e181b4cef197072 (patch) | |
| tree | 1a1ba52c0c2a7ce9843875cdd713d75d37c4ea1b /drivers/net/usb/kaweth.c | |
| parent | 3cb7396b7b26585b1ab7c1a8ca554ec103da5d37 (diff) | |
Move USB network drivers to drivers/net/usb.
It is preferable to group drivers by usage (net, scsi, ATA, ...) than
by bus. When reviewing drivers, the [PCI|USB|PCMCIA|...] maintainer
is probably less qualified on networking issues than a networking
maintainer. Also, from a practical standpoint, chips often
appear on multiple buses, which is why we do not put drivers into
drivers/pci/net.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/usb/kaweth.c')
| -rw-r--r-- | drivers/net/usb/kaweth.c | 1337 |
1 files changed, 1337 insertions, 0 deletions
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c new file mode 100644 index 000000000000..60d29440f316 --- /dev/null +++ b/drivers/net/usb/kaweth.c | |||
| @@ -0,0 +1,1337 @@ | |||
| 1 | /**************************************************************** | ||
| 2 | * | ||
| 3 | * kaweth.c - driver for KL5KUSB101 based USB->Ethernet | ||
| 4 | * | ||
| 5 | * (c) 2000 Interlan Communications | ||
| 6 | * (c) 2000 Stephane Alnet | ||
| 7 | * (C) 2001 Brad Hards | ||
| 8 | * (C) 2002 Oliver Neukum | ||
| 9 | * | ||
| 10 | * Original author: The Zapman <zapman@interlan.net> | ||
| 11 | * Inspired by, and much credit goes to Michael Rothwell | ||
| 12 | * <rothwell@interlan.net> for the test equipment, help, and patience | ||
| 13 | * Based off of (and with thanks to) Petko Manolov's pegaus.c driver. | ||
| 14 | * Also many thanks to Joel Silverman and Ed Surprenant at Kawasaki | ||
| 15 | * for providing the firmware and driver resources. | ||
| 16 | * | ||
| 17 | * This program is free software; you can redistribute it and/or | ||
| 18 | * modify it under the terms of the GNU General Public License as | ||
| 19 | * published by the Free Software Foundation; either version 2, or | ||
| 20 | * (at your option) any later version. | ||
| 21 | * | ||
| 22 | * This program is distributed in the hope that it will be useful, | ||
| 23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 25 | * GNU General Public License for more details. | ||
| 26 | * | ||
| 27 | * You should have received a copy of the GNU General Public License | ||
| 28 | * along with this program; if not, write to the Free Software Foundation, | ||
| 29 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
| 30 | * | ||
| 31 | ****************************************************************/ | ||
| 32 | |||
| 33 | /* TODO: | ||
| 34 | * Fix in_interrupt() problem | ||
| 35 | * Develop test procedures for USB net interfaces | ||
| 36 | * Run test procedures | ||
| 37 | * Fix bugs from previous two steps | ||
| 38 | * Snoop other OSs for any tricks we're not doing | ||
| 39 | * SMP locking | ||
| 40 | * Reduce arbitrary timeouts | ||
| 41 | * Smart multicast support | ||
| 42 | * Temporary MAC change support | ||
| 43 | * Tunable SOFs parameter - ioctl()? | ||
| 44 | * Ethernet stats collection | ||
| 45 | * Code formatting improvements | ||
| 46 | */ | ||
| 47 | |||
| 48 | #include <linux/module.h> | ||
| 49 | #include <linux/slab.h> | ||
| 50 | #include <linux/string.h> | ||
| 51 | #include <linux/init.h> | ||
| 52 | #include <linux/delay.h> | ||
| 53 | #include <linux/netdevice.h> | ||
| 54 | #include <linux/etherdevice.h> | ||
| 55 | #include <linux/usb.h> | ||
| 56 | #include <linux/types.h> | ||
| 57 | #include <linux/ethtool.h> | ||
| 58 | #include <linux/dma-mapping.h> | ||
| 59 | #include <linux/wait.h> | ||
| 60 | #include <asm/uaccess.h> | ||
| 61 | #include <asm/semaphore.h> | ||
| 62 | #include <asm/byteorder.h> | ||
| 63 | |||
| 64 | #undef DEBUG | ||
| 65 | |||
| 66 | #include "kawethfw.h" | ||
| 67 | |||
| 68 | #define KAWETH_MTU 1514 | ||
| 69 | #define KAWETH_BUF_SIZE 1664 | ||
| 70 | #define KAWETH_TX_TIMEOUT (5 * HZ) | ||
| 71 | #define KAWETH_SCRATCH_SIZE 32 | ||
| 72 | #define KAWETH_FIRMWARE_BUF_SIZE 4096 | ||
| 73 | #define KAWETH_CONTROL_TIMEOUT (30 * HZ) | ||
| 74 | |||
| 75 | #define KAWETH_STATUS_BROKEN 0x0000001 | ||
| 76 | #define KAWETH_STATUS_CLOSING 0x0000002 | ||
| 77 | #define KAWETH_STATUS_SUSPENDING 0x0000004 | ||
| 78 | |||
| 79 | #define KAWETH_STATUS_BLOCKED (KAWETH_STATUS_CLOSING | KAWETH_STATUS_SUSPENDING) | ||
| 80 | |||
| 81 | #define KAWETH_PACKET_FILTER_PROMISCUOUS 0x01 | ||
| 82 | #define KAWETH_PACKET_FILTER_ALL_MULTICAST 0x02 | ||
| 83 | #define KAWETH_PACKET_FILTER_DIRECTED 0x04 | ||
| 84 | #define KAWETH_PACKET_FILTER_BROADCAST 0x08 | ||
| 85 | #define KAWETH_PACKET_FILTER_MULTICAST 0x10 | ||
| 86 | |||
| 87 | /* Table 7 */ | ||
| 88 | #define KAWETH_COMMAND_GET_ETHERNET_DESC 0x00 | ||
| 89 | #define KAWETH_COMMAND_MULTICAST_FILTERS 0x01 | ||
| 90 | #define KAWETH_COMMAND_SET_PACKET_FILTER 0x02 | ||
| 91 | #define KAWETH_COMMAND_STATISTICS 0x03 | ||
| 92 | #define KAWETH_COMMAND_SET_TEMP_MAC 0x06 | ||
| 93 | #define KAWETH_COMMAND_GET_TEMP_MAC 0x07 | ||
| 94 | #define KAWETH_COMMAND_SET_URB_SIZE 0x08 | ||
| 95 | #define KAWETH_COMMAND_SET_SOFS_WAIT 0x09 | ||
| 96 | #define KAWETH_COMMAND_SCAN 0xFF | ||
| 97 | |||
| 98 | #define KAWETH_SOFS_TO_WAIT 0x05 | ||
| 99 | |||
| 100 | #define INTBUFFERSIZE 4 | ||
| 101 | |||
| 102 | #define STATE_OFFSET 0 | ||
| 103 | #define STATE_MASK 0x40 | ||
| 104 | #define STATE_SHIFT 5 | ||
| 105 | |||
| 106 | #define IS_BLOCKED(s) (s & KAWETH_STATUS_BLOCKED) | ||
| 107 | |||
| 108 | |||
| 109 | MODULE_AUTHOR("Michael Zappe <zapman@interlan.net>, Stephane Alnet <stephane@u-picardie.fr>, Brad Hards <bhards@bigpond.net.au> and Oliver Neukum <oliver@neukum.org>"); | ||
| 110 | MODULE_DESCRIPTION("KL5USB101 USB Ethernet driver"); | ||
| 111 | MODULE_LICENSE("GPL"); | ||
| 112 | |||
| 113 | static const char driver_name[] = "kaweth"; | ||
| 114 | |||
| 115 | static int kaweth_probe( | ||
| 116 | struct usb_interface *intf, | ||
| 117 | const struct usb_device_id *id /* from id_table */ | ||
| 118 | ); | ||
| 119 | static void kaweth_disconnect(struct usb_interface *intf); | ||
| 120 | static int kaweth_internal_control_msg(struct usb_device *usb_dev, | ||
| 121 | unsigned int pipe, | ||
| 122 | struct usb_ctrlrequest *cmd, void *data, | ||
| 123 | int len, int timeout); | ||
| 124 | static int kaweth_suspend(struct usb_interface *intf, pm_message_t message); | ||
| 125 | static int kaweth_resume(struct usb_interface *intf); | ||
| 126 | |||
| 127 | /**************************************************************** | ||
| 128 | * usb_device_id | ||
| 129 | ****************************************************************/ | ||
| 130 | static struct usb_device_id usb_klsi_table[] = { | ||
| 131 | { USB_DEVICE(0x03e8, 0x0008) }, /* AOX Endpoints USB Ethernet */ | ||
| 132 | { USB_DEVICE(0x04bb, 0x0901) }, /* I-O DATA USB-ET/T */ | ||
| 133 | { USB_DEVICE(0x0506, 0x03e8) }, /* 3Com 3C19250 */ | ||
| 134 | { USB_DEVICE(0x0506, 0x11f8) }, /* 3Com 3C460 */ | ||
| 135 | { USB_DEVICE(0x0557, 0x2002) }, /* ATEN USB Ethernet */ | ||
| 136 | { USB_DEVICE(0x0557, 0x4000) }, /* D-Link DSB-650C */ | ||
| 137 | { USB_DEVICE(0x0565, 0x0002) }, /* Peracom Enet */ | ||
| 138 | { USB_DEVICE(0x0565, 0x0003) }, /* Optus@Home UEP1045A */ | ||
| 139 | { USB_DEVICE(0x0565, 0x0005) }, /* Peracom Enet2 */ | ||
| 140 | { USB_DEVICE(0x05e9, 0x0008) }, /* KLSI KL5KUSB101B */ | ||
| 141 | { USB_DEVICE(0x05e9, 0x0009) }, /* KLSI KL5KUSB101B (Board change) */ | ||
| 142 | { USB_DEVICE(0x066b, 0x2202) }, /* Linksys USB10T */ | ||
| 143 | { USB_DEVICE(0x06e1, 0x0008) }, /* ADS USB-10BT */ | ||
| 144 | { USB_DEVICE(0x06e1, 0x0009) }, /* ADS USB-10BT */ | ||
| 145 | { USB_DEVICE(0x0707, 0x0100) }, /* SMC 2202USB */ | ||
| 146 | { USB_DEVICE(0x07aa, 0x0001) }, /* Correga K.K. */ | ||
| 147 | { USB_DEVICE(0x07b8, 0x4000) }, /* D-Link DU-E10 */ | ||
| 148 | { USB_DEVICE(0x0846, 0x1001) }, /* NetGear EA-101 */ | ||
| 149 | { USB_DEVICE(0x0846, 0x1002) }, /* NetGear EA-101 */ | ||
| 150 | { USB_DEVICE(0x085a, 0x0008) }, /* PortGear Ethernet Adapter */ | ||
| 151 | { USB_DEVICE(0x085a, 0x0009) }, /* PortGear Ethernet Adapter */ | ||
| 152 | { USB_DEVICE(0x087d, 0x5704) }, /* Jaton USB Ethernet Device Adapter */ | ||
| 153 | { USB_DEVICE(0x0951, 0x0008) }, /* Kingston Technology USB Ethernet Adapter */ | ||
| 154 | { USB_DEVICE(0x095a, 0x3003) }, /* Portsmith Express Ethernet Adapter */ | ||
| 155 | { USB_DEVICE(0x10bd, 0x1427) }, /* ASANTE USB To Ethernet Adapter */ | ||
| 156 | { USB_DEVICE(0x1342, 0x0204) }, /* Mobility USB-Ethernet Adapter */ | ||
| 157 | { USB_DEVICE(0x13d2, 0x0400) }, /* Shark Pocket Adapter */ | ||
| 158 | { USB_DEVICE(0x1485, 0x0001) }, /* Silicom U2E */ | ||
| 159 | { USB_DEVICE(0x1485, 0x0002) }, /* Psion Dacom Gold Port Ethernet */ | ||
| 160 | { USB_DEVICE(0x1645, 0x0005) }, /* Entrega E45 */ | ||
| 161 | { USB_DEVICE(0x1645, 0x0008) }, /* Entrega USB Ethernet Adapter */ | ||
| 162 | { USB_DEVICE(0x1645, 0x8005) }, /* PortGear Ethernet Adapter */ | ||
| 163 | { USB_DEVICE(0x1668, 0x0323) }, /* Actiontec USB Ethernet */ | ||
| 164 | { USB_DEVICE(0x2001, 0x4000) }, /* D-link DSB-650C */ | ||
| 165 | {} /* Null terminator */ | ||
| 166 | }; | ||
| 167 | |||
| 168 | MODULE_DEVICE_TABLE (usb, usb_klsi_table); | ||
| 169 | |||
| 170 | /**************************************************************** | ||
| 171 | * kaweth_driver | ||
| 172 | ****************************************************************/ | ||
| 173 | static struct usb_driver kaweth_driver = { | ||
| 174 | .name = driver_name, | ||
| 175 | .probe = kaweth_probe, | ||
| 176 | .disconnect = kaweth_disconnect, | ||
| 177 | .suspend = kaweth_suspend, | ||
| 178 | .resume = kaweth_resume, | ||
| 179 | .id_table = usb_klsi_table, | ||
| 180 | .supports_autosuspend = 1, | ||
| 181 | }; | ||
| 182 | |||
| 183 | typedef __u8 eth_addr_t[6]; | ||
| 184 | |||
| 185 | /**************************************************************** | ||
| 186 | * usb_eth_dev | ||
| 187 | ****************************************************************/ | ||
| 188 | struct usb_eth_dev { | ||
| 189 | char *name; | ||
| 190 | __u16 vendor; | ||
| 191 | __u16 device; | ||
| 192 | void *pdata; | ||
| 193 | }; | ||
| 194 | |||
| 195 | /**************************************************************** | ||
| 196 | * kaweth_ethernet_configuration | ||
| 197 | * Refer Table 8 | ||
| 198 | ****************************************************************/ | ||
| 199 | struct kaweth_ethernet_configuration | ||
| 200 | { | ||
| 201 | __u8 size; | ||
| 202 | __u8 reserved1; | ||
| 203 | __u8 reserved2; | ||
| 204 | eth_addr_t hw_addr; | ||
| 205 | __u32 statistics_mask; | ||
| 206 | __le16 segment_size; | ||
| 207 | __u16 max_multicast_filters; | ||
| 208 | __u8 reserved3; | ||
| 209 | } __attribute__ ((packed)); | ||
| 210 | |||
| 211 | /**************************************************************** | ||
| 212 | * kaweth_device | ||
| 213 | ****************************************************************/ | ||
| 214 | struct kaweth_device | ||
| 215 | { | ||
| 216 | spinlock_t device_lock; | ||
| 217 | |||
| 218 | __u32 status; | ||
| 219 | int end; | ||
| 220 | int suspend_lowmem_rx; | ||
| 221 | int suspend_lowmem_ctrl; | ||
| 222 | int linkstate; | ||
| 223 | int opened; | ||
| 224 | struct delayed_work lowmem_work; | ||
| 225 | |||
| 226 | struct usb_device *dev; | ||
| 227 | struct usb_interface *intf; | ||
| 228 | struct net_device *net; | ||
| 229 | wait_queue_head_t term_wait; | ||
| 230 | |||
| 231 | struct urb *rx_urb; | ||
| 232 | struct urb *tx_urb; | ||
| 233 | struct urb *irq_urb; | ||
| 234 | |||
| 235 | dma_addr_t intbufferhandle; | ||
| 236 | __u8 *intbuffer; | ||
| 237 | dma_addr_t rxbufferhandle; | ||
| 238 | __u8 *rx_buf; | ||
| 239 | |||
| 240 | |||
| 241 | struct sk_buff *tx_skb; | ||
| 242 | |||
| 243 | __u8 *firmware_buf; | ||
| 244 | __u8 scratch[KAWETH_SCRATCH_SIZE]; | ||
| 245 | __u16 packet_filter_bitmap; | ||
| 246 | |||
| 247 | struct kaweth_ethernet_configuration configuration; | ||
| 248 | |||
| 249 | struct net_device_stats stats; | ||
| 250 | }; | ||
| 251 | |||
| 252 | |||
| 253 | /**************************************************************** | ||
| 254 | * kaweth_control | ||
| 255 | ****************************************************************/ | ||
| 256 | static int kaweth_control(struct kaweth_device *kaweth, | ||
| 257 | unsigned int pipe, | ||
| 258 | __u8 request, | ||
| 259 | __u8 requesttype, | ||
| 260 | __u16 value, | ||
| 261 | __u16 index, | ||
| 262 | void *data, | ||
| 263 | __u16 size, | ||
| 264 | int timeout) | ||
| 265 | { | ||
| 266 | struct usb_ctrlrequest *dr; | ||
| 267 | |||
| 268 | dbg("kaweth_control()"); | ||
| 269 | |||
| 270 | if(in_interrupt()) { | ||
| 271 | dbg("in_interrupt()"); | ||
| 272 | return -EBUSY; | ||
| 273 | } | ||
| 274 | |||
| 275 | dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC); | ||
| 276 | |||
| 277 | if (!dr) { | ||
| 278 | dbg("kmalloc() failed"); | ||
| 279 | return -ENOMEM; | ||
| 280 | } | ||
| 281 | |||
| 282 | dr->bRequestType= requesttype; | ||
| 283 | dr->bRequest = request; | ||
| 284 | dr->wValue = cpu_to_le16p(&value); | ||
| 285 | dr->wIndex = cpu_to_le16p(&index); | ||
| 286 | dr->wLength = cpu_to_le16p(&size); | ||
| 287 | |||
| 288 | return kaweth_internal_control_msg(kaweth->dev, | ||
| 289 | pipe, | ||
| 290 | dr, | ||
| 291 | data, | ||
| 292 | size, | ||
| 293 | timeout); | ||
| 294 | } | ||
| 295 | |||
| 296 | /**************************************************************** | ||
| 297 | * kaweth_read_configuration | ||
| 298 | ****************************************************************/ | ||
| 299 | static int kaweth_read_configuration(struct kaweth_device *kaweth) | ||
| 300 | { | ||
| 301 | int retval; | ||
| 302 | |||
| 303 | dbg("Reading kaweth configuration"); | ||
| 304 | |||
| 305 | retval = kaweth_control(kaweth, | ||
| 306 | usb_rcvctrlpipe(kaweth->dev, 0), | ||
| 307 | KAWETH_COMMAND_GET_ETHERNET_DESC, | ||
| 308 | USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE, | ||
| 309 | 0, | ||
| 310 | 0, | ||
| 311 | (void *)&kaweth->configuration, | ||
| 312 | sizeof(kaweth->configuration), | ||
| 313 | KAWETH_CONTROL_TIMEOUT); | ||
| 314 | |||
| 315 | return retval; | ||
| 316 | } | ||
| 317 | |||
| 318 | /**************************************************************** | ||
| 319 | * kaweth_set_urb_size | ||
| 320 | ****************************************************************/ | ||
| 321 | static int kaweth_set_urb_size(struct kaweth_device *kaweth, __u16 urb_size) | ||
| 322 | { | ||
| 323 | int retval; | ||
| 324 | |||
| 325 | dbg("Setting URB size to %d", (unsigned)urb_size); | ||
| 326 | |||
| 327 | retval = kaweth_control(kaweth, | ||
| 328 | usb_sndctrlpipe(kaweth->dev, 0), | ||
| 329 | KAWETH_COMMAND_SET_URB_SIZE, | ||
| 330 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | ||
| 331 | urb_size, | ||
| 332 | 0, | ||
| 333 | (void *)&kaweth->scratch, | ||
| 334 | 0, | ||
| 335 | KAWETH_CONTROL_TIMEOUT); | ||
| 336 | |||
| 337 | return retval; | ||
| 338 | } | ||
| 339 | |||
| 340 | /**************************************************************** | ||
| 341 | * kaweth_set_sofs_wait | ||
| 342 | ****************************************************************/ | ||
| 343 | static int kaweth_set_sofs_wait(struct kaweth_device *kaweth, __u16 sofs_wait) | ||
| 344 | { | ||
| 345 | int retval; | ||
| 346 | |||
| 347 | dbg("Set SOFS wait to %d", (unsigned)sofs_wait); | ||
| 348 | |||
| 349 | retval = kaweth_control(kaweth, | ||
| 350 | usb_sndctrlpipe(kaweth->dev, 0), | ||
| 351 | KAWETH_COMMAND_SET_SOFS_WAIT, | ||
| 352 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | ||
| 353 | sofs_wait, | ||
| 354 | 0, | ||
| 355 | (void *)&kaweth->scratch, | ||
| 356 | 0, | ||
| 357 | KAWETH_CONTROL_TIMEOUT); | ||
| 358 | |||
| 359 | return retval; | ||
| 360 | } | ||
| 361 | |||
| 362 | /**************************************************************** | ||
| 363 | * kaweth_set_receive_filter | ||
| 364 | ****************************************************************/ | ||
| 365 | static int kaweth_set_receive_filter(struct kaweth_device *kaweth, | ||
| 366 | __u16 receive_filter) | ||
| 367 | { | ||
| 368 | int retval; | ||
| 369 | |||
| 370 | dbg("Set receive filter to %d", (unsigned)receive_filter); | ||
| 371 | |||
| 372 | retval = kaweth_control(kaweth, | ||
| 373 | usb_sndctrlpipe(kaweth->dev, 0), | ||
| 374 | KAWETH_COMMAND_SET_PACKET_FILTER, | ||
| 375 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | ||
| 376 | receive_filter, | ||
| 377 | 0, | ||
| 378 | (void *)&kaweth->scratch, | ||
| 379 | 0, | ||
| 380 | KAWETH_CONTROL_TIMEOUT); | ||
| 381 | |||
| 382 | return retval; | ||
| 383 | } | ||
| 384 | |||
| 385 | /**************************************************************** | ||
| 386 | * kaweth_download_firmware | ||
| 387 | ****************************************************************/ | ||
| 388 | static int kaweth_download_firmware(struct kaweth_device *kaweth, | ||
| 389 | __u8 *data, | ||
| 390 | __u16 data_len, | ||
| 391 | __u8 interrupt, | ||
| 392 | __u8 type) | ||
| 393 | { | ||
| 394 | if(data_len > KAWETH_FIRMWARE_BUF_SIZE) { | ||
| 395 | err("Firmware too big: %d", data_len); | ||
| 396 | return -ENOSPC; | ||
| 397 | } | ||
| 398 | |||
| 399 | memcpy(kaweth->firmware_buf, data, data_len); | ||
| 400 | |||
| 401 | kaweth->firmware_buf[2] = (data_len & 0xFF) - 7; | ||
| 402 | kaweth->firmware_buf[3] = data_len >> 8; | ||
| 403 | kaweth->firmware_buf[4] = type; | ||
| 404 | kaweth->firmware_buf[5] = interrupt; | ||
| 405 | |||
| 406 | dbg("High: %i, Low:%i", kaweth->firmware_buf[3], | ||
| 407 | kaweth->firmware_buf[2]); | ||
| 408 | |||
| 409 | dbg("Downloading firmware at %p to kaweth device at %p", | ||
| 410 | data, | ||
| 411 | kaweth); | ||
| 412 | dbg("Firmware length: %d", data_len); | ||
| 413 | |||
| 414 | return kaweth_control(kaweth, | ||
| 415 | usb_sndctrlpipe(kaweth->dev, 0), | ||
| 416 | KAWETH_COMMAND_SCAN, | ||
| 417 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | ||
| 418 | 0, | ||
| 419 | 0, | ||
| 420 | (void *)kaweth->firmware_buf, | ||
| 421 | data_len, | ||
| 422 | KAWETH_CONTROL_TIMEOUT); | ||
| 423 | } | ||
| 424 | |||
| 425 | /**************************************************************** | ||
| 426 | * kaweth_trigger_firmware | ||
| 427 | ****************************************************************/ | ||
| 428 | static int kaweth_trigger_firmware(struct kaweth_device *kaweth, | ||
| 429 | __u8 interrupt) | ||
| 430 | { | ||
| 431 | kaweth->firmware_buf[0] = 0xB6; | ||
| 432 | kaweth->firmware_buf[1] = 0xC3; | ||
| 433 | kaweth->firmware_buf[2] = 0x01; | ||
| 434 | kaweth->firmware_buf[3] = 0x00; | ||
| 435 | kaweth->firmware_buf[4] = 0x06; | ||
| 436 | kaweth->firmware_buf[5] = interrupt; | ||
| 437 | kaweth->firmware_buf[6] = 0x00; | ||
| 438 | kaweth->firmware_buf[7] = 0x00; | ||
| 439 | |||
| 440 | dbg("Triggering firmware"); | ||
| 441 | |||
| 442 | return kaweth_control(kaweth, | ||
| 443 | usb_sndctrlpipe(kaweth->dev, 0), | ||
| 444 | KAWETH_COMMAND_SCAN, | ||
| 445 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | ||
| 446 | 0, | ||
| 447 | 0, | ||
| 448 | (void *)kaweth->firmware_buf, | ||
| 449 | 8, | ||
| 450 | KAWETH_CONTROL_TIMEOUT); | ||
| 451 | } | ||
| 452 | |||
| 453 | /**************************************************************** | ||
| 454 | * kaweth_reset | ||
| 455 | ****************************************************************/ | ||
| 456 | static int kaweth_reset(struct kaweth_device *kaweth) | ||
| 457 | { | ||
| 458 | int result; | ||
| 459 | |||
| 460 | dbg("kaweth_reset(%p)", kaweth); | ||
| 461 | result = kaweth_control(kaweth, | ||
| 462 | usb_sndctrlpipe(kaweth->dev, 0), | ||
| 463 | USB_REQ_SET_CONFIGURATION, | ||
| 464 | 0, | ||
| 465 | kaweth->dev->config[0].desc.bConfigurationValue, | ||
| 466 | 0, | ||
| 467 | NULL, | ||
| 468 | 0, | ||
| 469 | KAWETH_CONTROL_TIMEOUT); | ||
| 470 | |||
| 471 | mdelay(10); | ||
| 472 | |||
| 473 | dbg("kaweth_reset() returns %d.",result); | ||
| 474 | |||
| 475 | return result; | ||
| 476 | } | ||
| 477 | |||
| 478 | static void kaweth_usb_receive(struct urb *); | ||
| 479 | static int kaweth_resubmit_rx_urb(struct kaweth_device *, gfp_t); | ||
| 480 | |||
| 481 | /**************************************************************** | ||
| 482 | int_callback | ||
| 483 | *****************************************************************/ | ||
| 484 | |||
| 485 | static void kaweth_resubmit_int_urb(struct kaweth_device *kaweth, gfp_t mf) | ||
| 486 | { | ||
| 487 | int status; | ||
| 488 | |||
| 489 | status = usb_submit_urb (kaweth->irq_urb, mf); | ||
| 490 | if (unlikely(status == -ENOMEM)) { | ||
| 491 | kaweth->suspend_lowmem_ctrl = 1; | ||
| 492 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | ||
| 493 | } else { | ||
| 494 | kaweth->suspend_lowmem_ctrl = 0; | ||
| 495 | } | ||
| 496 | |||
| 497 | if (status) | ||
| 498 | err ("can't resubmit intr, %s-%s, status %d", | ||
| 499 | kaweth->dev->bus->bus_name, | ||
| 500 | kaweth->dev->devpath, status); | ||
| 501 | } | ||
| 502 | |||
| 503 | static void int_callback(struct urb *u) | ||
| 504 | { | ||
| 505 | struct kaweth_device *kaweth = u->context; | ||
| 506 | int act_state; | ||
| 507 | |||
| 508 | switch (u->status) { | ||
| 509 | case 0: /* success */ | ||
| 510 | break; | ||
| 511 | case -ECONNRESET: /* unlink */ | ||
| 512 | case -ENOENT: | ||
| 513 | case -ESHUTDOWN: | ||
| 514 | return; | ||
| 515 | /* -EPIPE: should clear the halt */ | ||
| 516 | default: /* error */ | ||
| 517 | goto resubmit; | ||
| 518 | } | ||
| 519 | |||
| 520 | /* we check the link state to report changes */ | ||
| 521 | if (kaweth->linkstate != (act_state = ( kaweth->intbuffer[STATE_OFFSET] | STATE_MASK) >> STATE_SHIFT)) { | ||
| 522 | if (act_state) | ||
| 523 | netif_carrier_on(kaweth->net); | ||
| 524 | else | ||
| 525 | netif_carrier_off(kaweth->net); | ||
| 526 | |||
| 527 | kaweth->linkstate = act_state; | ||
| 528 | } | ||
| 529 | resubmit: | ||
| 530 | kaweth_resubmit_int_urb(kaweth, GFP_ATOMIC); | ||
| 531 | } | ||
| 532 | |||
| 533 | static void kaweth_resubmit_tl(struct work_struct *work) | ||
| 534 | { | ||
| 535 | struct kaweth_device *kaweth = | ||
| 536 | container_of(work, struct kaweth_device, lowmem_work.work); | ||
| 537 | |||
| 538 | if (IS_BLOCKED(kaweth->status)) | ||
| 539 | return; | ||
| 540 | |||
| 541 | if (kaweth->suspend_lowmem_rx) | ||
| 542 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | ||
| 543 | |||
| 544 | if (kaweth->suspend_lowmem_ctrl) | ||
| 545 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | ||
| 546 | } | ||
| 547 | |||
| 548 | |||
| 549 | /**************************************************************** | ||
| 550 | * kaweth_resubmit_rx_urb | ||
| 551 | ****************************************************************/ | ||
| 552 | static int kaweth_resubmit_rx_urb(struct kaweth_device *kaweth, | ||
| 553 | gfp_t mem_flags) | ||
| 554 | { | ||
| 555 | int result; | ||
| 556 | |||
| 557 | usb_fill_bulk_urb(kaweth->rx_urb, | ||
| 558 | kaweth->dev, | ||
| 559 | usb_rcvbulkpipe(kaweth->dev, 1), | ||
| 560 | kaweth->rx_buf, | ||
| 561 | KAWETH_BUF_SIZE, | ||
| 562 | kaweth_usb_receive, | ||
| 563 | kaweth); | ||
| 564 | kaweth->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | ||
| 565 | kaweth->rx_urb->transfer_dma = kaweth->rxbufferhandle; | ||
| 566 | |||
| 567 | if((result = usb_submit_urb(kaweth->rx_urb, mem_flags))) { | ||
| 568 | if (result == -ENOMEM) { | ||
| 569 | kaweth->suspend_lowmem_rx = 1; | ||
| 570 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | ||
| 571 | } | ||
| 572 | err("resubmitting rx_urb %d failed", result); | ||
| 573 | } else { | ||
| 574 | kaweth->suspend_lowmem_rx = 0; | ||
| 575 | } | ||
| 576 | |||
| 577 | return result; | ||
| 578 | } | ||
| 579 | |||
| 580 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth); | ||
| 581 | |||
| 582 | /**************************************************************** | ||
| 583 | * kaweth_usb_receive | ||
| 584 | ****************************************************************/ | ||
| 585 | static void kaweth_usb_receive(struct urb *urb) | ||
| 586 | { | ||
| 587 | struct kaweth_device *kaweth = urb->context; | ||
| 588 | struct net_device *net = kaweth->net; | ||
| 589 | |||
| 590 | int count = urb->actual_length; | ||
| 591 | int count2 = urb->transfer_buffer_length; | ||
| 592 | |||
| 593 | __u16 pkt_len = le16_to_cpup((__le16 *)kaweth->rx_buf); | ||
| 594 | |||
| 595 | struct sk_buff *skb; | ||
| 596 | |||
| 597 | if(unlikely(urb->status == -ECONNRESET || urb->status == -ESHUTDOWN)) | ||
| 598 | /* we are killed - set a flag and wake the disconnect handler */ | ||
| 599 | { | ||
| 600 | kaweth->end = 1; | ||
| 601 | wake_up(&kaweth->term_wait); | ||
| 602 | return; | ||
| 603 | } | ||
| 604 | |||
| 605 | spin_lock(&kaweth->device_lock); | ||
| 606 | if (IS_BLOCKED(kaweth->status)) { | ||
| 607 | spin_unlock(&kaweth->device_lock); | ||
| 608 | return; | ||
| 609 | } | ||
| 610 | spin_unlock(&kaweth->device_lock); | ||
| 611 | |||
| 612 | if(urb->status && urb->status != -EREMOTEIO && count != 1) { | ||
| 613 | err("%s RX status: %d count: %d packet_len: %d", | ||
| 614 | net->name, | ||
| 615 | urb->status, | ||
| 616 | count, | ||
| 617 | (int)pkt_len); | ||
| 618 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | ||
| 619 | return; | ||
| 620 | } | ||
| 621 | |||
| 622 | if(kaweth->net && (count > 2)) { | ||
| 623 | if(pkt_len > (count - 2)) { | ||
| 624 | err("Packet length too long for USB frame (pkt_len: %x, count: %x)",pkt_len, count); | ||
| 625 | err("Packet len & 2047: %x", pkt_len & 2047); | ||
| 626 | err("Count 2: %x", count2); | ||
| 627 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | ||
| 628 | return; | ||
| 629 | } | ||
| 630 | |||
| 631 | if(!(skb = dev_alloc_skb(pkt_len+2))) { | ||
| 632 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | ||
| 633 | return; | ||
| 634 | } | ||
| 635 | |||
| 636 | skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ | ||
| 637 | |||
| 638 | eth_copy_and_sum(skb, kaweth->rx_buf + 2, pkt_len, 0); | ||
| 639 | |||
| 640 | skb_put(skb, pkt_len); | ||
| 641 | |||
| 642 | skb->protocol = eth_type_trans(skb, net); | ||
| 643 | |||
| 644 | netif_rx(skb); | ||
| 645 | |||
| 646 | kaweth->stats.rx_packets++; | ||
| 647 | kaweth->stats.rx_bytes += pkt_len; | ||
| 648 | } | ||
| 649 | |||
| 650 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | ||
| 651 | } | ||
| 652 | |||
| 653 | /**************************************************************** | ||
| 654 | * kaweth_open | ||
| 655 | ****************************************************************/ | ||
| 656 | static int kaweth_open(struct net_device *net) | ||
| 657 | { | ||
| 658 | struct kaweth_device *kaweth = netdev_priv(net); | ||
| 659 | int res; | ||
| 660 | |||
| 661 | dbg("Opening network device."); | ||
| 662 | |||
| 663 | res = usb_autopm_get_interface(kaweth->intf); | ||
| 664 | if (res) { | ||
| 665 | err("Interface cannot be resumed."); | ||
| 666 | return -EIO; | ||
| 667 | } | ||
| 668 | res = kaweth_resubmit_rx_urb(kaweth, GFP_KERNEL); | ||
| 669 | if (res) | ||
| 670 | goto err_out; | ||
| 671 | |||
| 672 | usb_fill_int_urb( | ||
| 673 | kaweth->irq_urb, | ||
| 674 | kaweth->dev, | ||
| 675 | usb_rcvintpipe(kaweth->dev, 3), | ||
| 676 | kaweth->intbuffer, | ||
| 677 | INTBUFFERSIZE, | ||
| 678 | int_callback, | ||
| 679 | kaweth, | ||
| 680 | 250); /* overriding the descriptor */ | ||
| 681 | kaweth->irq_urb->transfer_dma = kaweth->intbufferhandle; | ||
| 682 | kaweth->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | ||
| 683 | |||
| 684 | res = usb_submit_urb(kaweth->irq_urb, GFP_KERNEL); | ||
| 685 | if (res) { | ||
| 686 | usb_kill_urb(kaweth->rx_urb); | ||
| 687 | goto err_out; | ||
| 688 | } | ||
| 689 | kaweth->opened = 1; | ||
| 690 | |||
| 691 | netif_start_queue(net); | ||
| 692 | |||
| 693 | kaweth_async_set_rx_mode(kaweth); | ||
| 694 | return 0; | ||
| 695 | |||
| 696 | err_out: | ||
| 697 | usb_autopm_enable(kaweth->intf); | ||
| 698 | return -EIO; | ||
| 699 | } | ||
| 700 | |||
| 701 | /**************************************************************** | ||
| 702 | * kaweth_kill_urbs | ||
| 703 | ****************************************************************/ | ||
| 704 | static void kaweth_kill_urbs(struct kaweth_device *kaweth) | ||
| 705 | { | ||
| 706 | usb_kill_urb(kaweth->irq_urb); | ||
| 707 | usb_kill_urb(kaweth->rx_urb); | ||
| 708 | usb_kill_urb(kaweth->tx_urb); | ||
| 709 | |||
| 710 | flush_scheduled_work(); | ||
| 711 | |||
| 712 | /* a scheduled work may have resubmitted, | ||
| 713 | we hit them again */ | ||
| 714 | usb_kill_urb(kaweth->irq_urb); | ||
| 715 | usb_kill_urb(kaweth->rx_urb); | ||
| 716 | } | ||
| 717 | |||
| 718 | /**************************************************************** | ||
| 719 | * kaweth_close | ||
| 720 | ****************************************************************/ | ||
| 721 | static int kaweth_close(struct net_device *net) | ||
| 722 | { | ||
| 723 | struct kaweth_device *kaweth = netdev_priv(net); | ||
| 724 | |||
| 725 | netif_stop_queue(net); | ||
| 726 | kaweth->opened = 0; | ||
| 727 | |||
| 728 | kaweth->status |= KAWETH_STATUS_CLOSING; | ||
| 729 | |||
| 730 | kaweth_kill_urbs(kaweth); | ||
| 731 | |||
| 732 | kaweth->status &= ~KAWETH_STATUS_CLOSING; | ||
| 733 | |||
| 734 | usb_autopm_enable(kaweth->intf); | ||
| 735 | |||
| 736 | return 0; | ||
| 737 | } | ||
| 738 | |||
| 739 | static void kaweth_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | ||
| 740 | { | ||
| 741 | struct kaweth_device *kaweth = netdev_priv(dev); | ||
| 742 | |||
| 743 | strlcpy(info->driver, driver_name, sizeof(info->driver)); | ||
| 744 | usb_make_path(kaweth->dev, info->bus_info, sizeof (info->bus_info)); | ||
| 745 | } | ||
| 746 | |||
| 747 | static u32 kaweth_get_link(struct net_device *dev) | ||
| 748 | { | ||
| 749 | struct kaweth_device *kaweth = netdev_priv(dev); | ||
| 750 | |||
| 751 | return kaweth->linkstate; | ||
| 752 | } | ||
| 753 | |||
| 754 | static struct ethtool_ops ops = { | ||
| 755 | .get_drvinfo = kaweth_get_drvinfo, | ||
| 756 | .get_link = kaweth_get_link | ||
| 757 | }; | ||
| 758 | |||
| 759 | /**************************************************************** | ||
| 760 | * kaweth_usb_transmit_complete | ||
| 761 | ****************************************************************/ | ||
| 762 | static void kaweth_usb_transmit_complete(struct urb *urb) | ||
| 763 | { | ||
| 764 | struct kaweth_device *kaweth = urb->context; | ||
| 765 | struct sk_buff *skb = kaweth->tx_skb; | ||
| 766 | |||
| 767 | if (unlikely(urb->status != 0)) | ||
| 768 | if (urb->status != -ENOENT) | ||
| 769 | dbg("%s: TX status %d.", kaweth->net->name, urb->status); | ||
| 770 | |||
| 771 | netif_wake_queue(kaweth->net); | ||
| 772 | dev_kfree_skb_irq(skb); | ||
| 773 | } | ||
| 774 | |||
| 775 | /**************************************************************** | ||
| 776 | * kaweth_start_xmit | ||
| 777 | ****************************************************************/ | ||
| 778 | static int kaweth_start_xmit(struct sk_buff *skb, struct net_device *net) | ||
| 779 | { | ||
| 780 | struct kaweth_device *kaweth = netdev_priv(net); | ||
| 781 | __le16 *private_header; | ||
| 782 | |||
| 783 | int res; | ||
| 784 | |||
| 785 | spin_lock(&kaweth->device_lock); | ||
| 786 | |||
| 787 | kaweth_async_set_rx_mode(kaweth); | ||
| 788 | netif_stop_queue(net); | ||
| 789 | if (IS_BLOCKED(kaweth->status)) { | ||
| 790 | goto skip; | ||
| 791 | } | ||
| 792 | |||
| 793 | /* We now decide whether we can put our special header into the sk_buff */ | ||
| 794 | if (skb_cloned(skb) || skb_headroom(skb) < 2) { | ||
| 795 | /* no such luck - we make our own */ | ||
| 796 | struct sk_buff *copied_skb; | ||
| 797 | copied_skb = skb_copy_expand(skb, 2, 0, GFP_ATOMIC); | ||
| 798 | dev_kfree_skb_irq(skb); | ||
| 799 | skb = copied_skb; | ||
| 800 | if (!copied_skb) { | ||
| 801 | kaweth->stats.tx_errors++; | ||
| 802 | netif_start_queue(net); | ||
| 803 | spin_unlock(&kaweth->device_lock); | ||
| 804 | return 0; | ||
| 805 | } | ||
| 806 | } | ||
| 807 | |||
| 808 | private_header = (__le16 *)__skb_push(skb, 2); | ||
| 809 | *private_header = cpu_to_le16(skb->len-2); | ||
| 810 | kaweth->tx_skb = skb; | ||
| 811 | |||
| 812 | usb_fill_bulk_urb(kaweth->tx_urb, | ||
| 813 | kaweth->dev, | ||
| 814 | usb_sndbulkpipe(kaweth->dev, 2), | ||
| 815 | private_header, | ||
| 816 | skb->len, | ||
| 817 | kaweth_usb_transmit_complete, | ||
| 818 | kaweth); | ||
| 819 | kaweth->end = 0; | ||
| 820 | |||
| 821 | if((res = usb_submit_urb(kaweth->tx_urb, GFP_ATOMIC))) | ||
| 822 | { | ||
| 823 | warn("kaweth failed tx_urb %d", res); | ||
| 824 | skip: | ||
| 825 | kaweth->stats.tx_errors++; | ||
| 826 | |||
| 827 | netif_start_queue(net); | ||
| 828 | dev_kfree_skb_irq(skb); | ||
| 829 | } | ||
| 830 | else | ||
| 831 | { | ||
| 832 | kaweth->stats.tx_packets++; | ||
| 833 | kaweth->stats.tx_bytes += skb->len; | ||
| 834 | net->trans_start = jiffies; | ||
| 835 | } | ||
| 836 | |||
| 837 | spin_unlock(&kaweth->device_lock); | ||
| 838 | |||
| 839 | return 0; | ||
| 840 | } | ||
| 841 | |||
| 842 | /**************************************************************** | ||
| 843 | * kaweth_set_rx_mode | ||
| 844 | ****************************************************************/ | ||
| 845 | static void kaweth_set_rx_mode(struct net_device *net) | ||
| 846 | { | ||
| 847 | struct kaweth_device *kaweth = netdev_priv(net); | ||
| 848 | |||
| 849 | __u16 packet_filter_bitmap = KAWETH_PACKET_FILTER_DIRECTED | | ||
| 850 | KAWETH_PACKET_FILTER_BROADCAST | | ||
| 851 | KAWETH_PACKET_FILTER_MULTICAST; | ||
| 852 | |||
| 853 | dbg("Setting Rx mode to %d", packet_filter_bitmap); | ||
| 854 | |||
| 855 | netif_stop_queue(net); | ||
| 856 | |||
| 857 | if (net->flags & IFF_PROMISC) { | ||
| 858 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_PROMISCUOUS; | ||
| 859 | } | ||
| 860 | else if ((net->mc_count) || (net->flags & IFF_ALLMULTI)) { | ||
| 861 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_ALL_MULTICAST; | ||
| 862 | } | ||
| 863 | |||
| 864 | kaweth->packet_filter_bitmap = packet_filter_bitmap; | ||
| 865 | netif_wake_queue(net); | ||
| 866 | } | ||
| 867 | |||
| 868 | /**************************************************************** | ||
| 869 | * kaweth_async_set_rx_mode | ||
| 870 | ****************************************************************/ | ||
| 871 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth) | ||
| 872 | { | ||
| 873 | __u16 packet_filter_bitmap = kaweth->packet_filter_bitmap; | ||
| 874 | kaweth->packet_filter_bitmap = 0; | ||
| 875 | if (packet_filter_bitmap == 0) | ||
| 876 | return; | ||
| 877 | |||
| 878 | { | ||
| 879 | int result; | ||
| 880 | result = kaweth_control(kaweth, | ||
| 881 | usb_sndctrlpipe(kaweth->dev, 0), | ||
| 882 | KAWETH_COMMAND_SET_PACKET_FILTER, | ||
| 883 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | ||
| 884 | packet_filter_bitmap, | ||
| 885 | 0, | ||
| 886 | (void *)&kaweth->scratch, | ||
| 887 | 0, | ||
| 888 | KAWETH_CONTROL_TIMEOUT); | ||
| 889 | |||
| 890 | if(result < 0) { | ||
| 891 | err("Failed to set Rx mode: %d", result); | ||
| 892 | } | ||
| 893 | else { | ||
| 894 | dbg("Set Rx mode to %d", packet_filter_bitmap); | ||
| 895 | } | ||
| 896 | } | ||
| 897 | } | ||
| 898 | |||
| 899 | /**************************************************************** | ||
| 900 | * kaweth_netdev_stats | ||
| 901 | ****************************************************************/ | ||
| 902 | static struct net_device_stats *kaweth_netdev_stats(struct net_device *dev) | ||
| 903 | { | ||
| 904 | struct kaweth_device *kaweth = netdev_priv(dev); | ||
| 905 | return &kaweth->stats; | ||
| 906 | } | ||
| 907 | |||
| 908 | /**************************************************************** | ||
| 909 | * kaweth_tx_timeout | ||
| 910 | ****************************************************************/ | ||
| 911 | static void kaweth_tx_timeout(struct net_device *net) | ||
| 912 | { | ||
| 913 | struct kaweth_device *kaweth = netdev_priv(net); | ||
| 914 | |||
| 915 | warn("%s: Tx timed out. Resetting.", net->name); | ||
| 916 | kaweth->stats.tx_errors++; | ||
| 917 | net->trans_start = jiffies; | ||
| 918 | |||
| 919 | usb_unlink_urb(kaweth->tx_urb); | ||
| 920 | } | ||
| 921 | |||
| 922 | /**************************************************************** | ||
| 923 | * kaweth_suspend | ||
| 924 | ****************************************************************/ | ||
| 925 | static int kaweth_suspend(struct usb_interface *intf, pm_message_t message) | ||
| 926 | { | ||
| 927 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | ||
| 928 | unsigned long flags; | ||
| 929 | |||
| 930 | dbg("Suspending device"); | ||
| 931 | spin_lock_irqsave(&kaweth->device_lock, flags); | ||
| 932 | kaweth->status |= KAWETH_STATUS_SUSPENDING; | ||
| 933 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | ||
| 934 | |||
| 935 | kaweth_kill_urbs(kaweth); | ||
| 936 | return 0; | ||
| 937 | } | ||
| 938 | |||
| 939 | /**************************************************************** | ||
| 940 | * kaweth_resume | ||
| 941 | ****************************************************************/ | ||
| 942 | static int kaweth_resume(struct usb_interface *intf) | ||
| 943 | { | ||
| 944 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | ||
| 945 | unsigned long flags; | ||
| 946 | |||
| 947 | dbg("Resuming device"); | ||
| 948 | spin_lock_irqsave(&kaweth->device_lock, flags); | ||
| 949 | kaweth->status &= ~KAWETH_STATUS_SUSPENDING; | ||
| 950 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | ||
| 951 | |||
| 952 | if (!kaweth->opened) | ||
| 953 | return 0; | ||
| 954 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | ||
| 955 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | ||
| 956 | |||
| 957 | return 0; | ||
| 958 | } | ||
| 959 | |||
| 960 | /**************************************************************** | ||
| 961 | * kaweth_probe | ||
| 962 | ****************************************************************/ | ||
| 963 | static int kaweth_probe( | ||
| 964 | struct usb_interface *intf, | ||
| 965 | const struct usb_device_id *id /* from id_table */ | ||
| 966 | ) | ||
| 967 | { | ||
| 968 | struct usb_device *dev = interface_to_usbdev(intf); | ||
| 969 | struct kaweth_device *kaweth; | ||
| 970 | struct net_device *netdev; | ||
| 971 | const eth_addr_t bcast_addr = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; | ||
| 972 | int result = 0; | ||
| 973 | |||
| 974 | dbg("Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x", | ||
| 975 | dev->devnum, | ||
| 976 | le16_to_cpu(dev->descriptor.idVendor), | ||
| 977 | le16_to_cpu(dev->descriptor.idProduct), | ||
| 978 | le16_to_cpu(dev->descriptor.bcdDevice)); | ||
| 979 | |||
| 980 | dbg("Device at %p", dev); | ||
| 981 | |||
| 982 | dbg("Descriptor length: %x type: %x", | ||
| 983 | (int)dev->descriptor.bLength, | ||
| 984 | (int)dev->descriptor.bDescriptorType); | ||
| 985 | |||
| 986 | netdev = alloc_etherdev(sizeof(*kaweth)); | ||
| 987 | if (!netdev) | ||
| 988 | return -ENOMEM; | ||
| 989 | |||
| 990 | kaweth = netdev_priv(netdev); | ||
| 991 | kaweth->dev = dev; | ||
| 992 | kaweth->net = netdev; | ||
| 993 | |||
| 994 | spin_lock_init(&kaweth->device_lock); | ||
| 995 | init_waitqueue_head(&kaweth->term_wait); | ||
| 996 | |||
| 997 | dbg("Resetting."); | ||
| 998 | |||
| 999 | kaweth_reset(kaweth); | ||
| 1000 | |||
| 1001 | /* | ||
| 1002 | * If high byte of bcdDevice is nonzero, firmware is already | ||
| 1003 | * downloaded. Don't try to do it again, or we'll hang the device. | ||
| 1004 | */ | ||
| 1005 | |||
| 1006 | if (le16_to_cpu(dev->descriptor.bcdDevice) >> 8) { | ||
| 1007 | info("Firmware present in device."); | ||
| 1008 | } else { | ||
| 1009 | /* Download the firmware */ | ||
| 1010 | info("Downloading firmware..."); | ||
| 1011 | kaweth->firmware_buf = (__u8 *)__get_free_page(GFP_KERNEL); | ||
| 1012 | if ((result = kaweth_download_firmware(kaweth, | ||
| 1013 | kaweth_new_code, | ||
| 1014 | len_kaweth_new_code, | ||
| 1015 | 100, | ||
| 1016 | 2)) < 0) { | ||
| 1017 | err("Error downloading firmware (%d)", result); | ||
| 1018 | goto err_fw; | ||
| 1019 | } | ||
| 1020 | |||
| 1021 | if ((result = kaweth_download_firmware(kaweth, | ||
| 1022 | kaweth_new_code_fix, | ||
| 1023 | len_kaweth_new_code_fix, | ||
| 1024 | 100, | ||
| 1025 | 3)) < 0) { | ||
| 1026 | err("Error downloading firmware fix (%d)", result); | ||
| 1027 | goto err_fw; | ||
| 1028 | } | ||
| 1029 | |||
| 1030 | if ((result = kaweth_download_firmware(kaweth, | ||
| 1031 | kaweth_trigger_code, | ||
| 1032 | len_kaweth_trigger_code, | ||
| 1033 | 126, | ||
| 1034 | 2)) < 0) { | ||
| 1035 | err("Error downloading trigger code (%d)", result); | ||
| 1036 | goto err_fw; | ||
| 1037 | |||
| 1038 | } | ||
| 1039 | |||
| 1040 | if ((result = kaweth_download_firmware(kaweth, | ||
| 1041 | kaweth_trigger_code_fix, | ||
| 1042 | len_kaweth_trigger_code_fix, | ||
| 1043 | 126, | ||
| 1044 | 3)) < 0) { | ||
| 1045 | err("Error downloading trigger code fix (%d)", result); | ||
| 1046 | goto err_fw; | ||
| 1047 | } | ||
| 1048 | |||
| 1049 | |||
| 1050 | if ((result = kaweth_trigger_firmware(kaweth, 126)) < 0) { | ||
| 1051 | err("Error triggering firmware (%d)", result); | ||
| 1052 | goto err_fw; | ||
| 1053 | } | ||
| 1054 | |||
| 1055 | /* Device will now disappear for a moment... */ | ||
| 1056 | info("Firmware loaded. I'll be back..."); | ||
| 1057 | err_fw: | ||
| 1058 | free_page((unsigned long)kaweth->firmware_buf); | ||
| 1059 | free_netdev(netdev); | ||
| 1060 | return -EIO; | ||
| 1061 | } | ||
| 1062 | |||
| 1063 | result = kaweth_read_configuration(kaweth); | ||
| 1064 | |||
| 1065 | if(result < 0) { | ||
| 1066 | err("Error reading configuration (%d), no net device created", result); | ||
| 1067 | goto err_free_netdev; | ||
| 1068 | } | ||
| 1069 | |||
| 1070 | info("Statistics collection: %x", kaweth->configuration.statistics_mask); | ||
| 1071 | info("Multicast filter limit: %x", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1)); | ||
| 1072 | info("MTU: %d", le16_to_cpu(kaweth->configuration.segment_size)); | ||
| 1073 | info("Read MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", | ||
| 1074 | (int)kaweth->configuration.hw_addr[0], | ||
| 1075 | (int)kaweth->configuration.hw_addr[1], | ||
| 1076 | (int)kaweth->configuration.hw_addr[2], | ||
| 1077 | (int)kaweth->configuration.hw_addr[3], | ||
| 1078 | (int)kaweth->configuration.hw_addr[4], | ||
| 1079 | (int)kaweth->configuration.hw_addr[5]); | ||
| 1080 | |||
| 1081 | if(!memcmp(&kaweth->configuration.hw_addr, | ||
| 1082 | &bcast_addr, | ||
| 1083 | sizeof(bcast_addr))) { | ||
| 1084 | err("Firmware not functioning properly, no net device created"); | ||
| 1085 | goto err_free_netdev; | ||
| 1086 | } | ||
| 1087 | |||
| 1088 | if(kaweth_set_urb_size(kaweth, KAWETH_BUF_SIZE) < 0) { | ||
| 1089 | dbg("Error setting URB size"); | ||
| 1090 | goto err_free_netdev; | ||
| 1091 | } | ||
| 1092 | |||
| 1093 | if(kaweth_set_sofs_wait(kaweth, KAWETH_SOFS_TO_WAIT) < 0) { | ||
| 1094 | err("Error setting SOFS wait"); | ||
| 1095 | goto err_free_netdev; | ||
| 1096 | } | ||
| 1097 | |||
| 1098 | result = kaweth_set_receive_filter(kaweth, | ||
| 1099 | KAWETH_PACKET_FILTER_DIRECTED | | ||
| 1100 | KAWETH_PACKET_FILTER_BROADCAST | | ||
| 1101 | KAWETH_PACKET_FILTER_MULTICAST); | ||
| 1102 | |||
| 1103 | if(result < 0) { | ||
| 1104 | err("Error setting receive filter"); | ||
| 1105 | goto err_free_netdev; | ||
| 1106 | } | ||
| 1107 | |||
| 1108 | dbg("Initializing net device."); | ||
| 1109 | |||
| 1110 | kaweth->intf = intf; | ||
| 1111 | |||
| 1112 | kaweth->tx_urb = usb_alloc_urb(0, GFP_KERNEL); | ||
| 1113 | if (!kaweth->tx_urb) | ||
| 1114 | goto err_free_netdev; | ||
| 1115 | kaweth->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | ||
| 1116 | if (!kaweth->rx_urb) | ||
| 1117 | goto err_only_tx; | ||
| 1118 | kaweth->irq_urb = usb_alloc_urb(0, GFP_KERNEL); | ||
| 1119 | if (!kaweth->irq_urb) | ||
| 1120 | goto err_tx_and_rx; | ||
| 1121 | |||
| 1122 | kaweth->intbuffer = usb_buffer_alloc( kaweth->dev, | ||
| 1123 | INTBUFFERSIZE, | ||
| 1124 | GFP_KERNEL, | ||
| 1125 | &kaweth->intbufferhandle); | ||
| 1126 | if (!kaweth->intbuffer) | ||
| 1127 | goto err_tx_and_rx_and_irq; | ||
| 1128 | kaweth->rx_buf = usb_buffer_alloc( kaweth->dev, | ||
| 1129 | KAWETH_BUF_SIZE, | ||
| 1130 | GFP_KERNEL, | ||
| 1131 | &kaweth->rxbufferhandle); | ||
| 1132 | if (!kaweth->rx_buf) | ||
| 1133 | goto err_all_but_rxbuf; | ||
| 1134 | |||
| 1135 | memcpy(netdev->broadcast, &bcast_addr, sizeof(bcast_addr)); | ||
| 1136 | memcpy(netdev->dev_addr, &kaweth->configuration.hw_addr, | ||
| 1137 | sizeof(kaweth->configuration.hw_addr)); | ||
| 1138 | |||
| 1139 | netdev->open = kaweth_open; | ||
| 1140 | netdev->stop = kaweth_close; | ||
| 1141 | |||
| 1142 | netdev->watchdog_timeo = KAWETH_TX_TIMEOUT; | ||
| 1143 | netdev->tx_timeout = kaweth_tx_timeout; | ||
| 1144 | |||
| 1145 | netdev->hard_start_xmit = kaweth_start_xmit; | ||
| 1146 | netdev->set_multicast_list = kaweth_set_rx_mode; | ||
| 1147 | netdev->get_stats = kaweth_netdev_stats; | ||
| 1148 | netdev->mtu = le16_to_cpu(kaweth->configuration.segment_size); | ||
| 1149 | SET_ETHTOOL_OPS(netdev, &ops); | ||
| 1150 | |||
| 1151 | /* kaweth is zeroed as part of alloc_netdev */ | ||
| 1152 | |||
| 1153 | INIT_DELAYED_WORK(&kaweth->lowmem_work, kaweth_resubmit_tl); | ||
| 1154 | |||
| 1155 | SET_MODULE_OWNER(netdev); | ||
| 1156 | |||
| 1157 | usb_set_intfdata(intf, kaweth); | ||
| 1158 | |||
| 1159 | #if 0 | ||
| 1160 | // dma_supported() is deeply broken on almost all architectures | ||
| 1161 | if (dma_supported (&intf->dev, 0xffffffffffffffffULL)) | ||
| 1162 | kaweth->net->features |= NETIF_F_HIGHDMA; | ||
| 1163 | #endif | ||
| 1164 | |||
| 1165 | SET_NETDEV_DEV(netdev, &intf->dev); | ||
| 1166 | if (register_netdev(netdev) != 0) { | ||
| 1167 | err("Error registering netdev."); | ||
| 1168 | goto err_intfdata; | ||
| 1169 | } | ||
| 1170 | |||
| 1171 | info("kaweth interface created at %s", kaweth->net->name); | ||
| 1172 | |||
| 1173 | dbg("Kaweth probe returning."); | ||
| 1174 | |||
| 1175 | return 0; | ||
| 1176 | |||
| 1177 | err_intfdata: | ||
| 1178 | usb_set_intfdata(intf, NULL); | ||
| 1179 | usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); | ||
| 1180 | err_all_but_rxbuf: | ||
| 1181 | usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); | ||
| 1182 | err_tx_and_rx_and_irq: | ||
| 1183 | usb_free_urb(kaweth->irq_urb); | ||
| 1184 | err_tx_and_rx: | ||
| 1185 | usb_free_urb(kaweth->rx_urb); | ||
| 1186 | err_only_tx: | ||
| 1187 | usb_free_urb(kaweth->tx_urb); | ||
| 1188 | err_free_netdev: | ||
| 1189 | free_netdev(netdev); | ||
| 1190 | |||
| 1191 | return -EIO; | ||
| 1192 | } | ||
| 1193 | |||
| 1194 | /**************************************************************** | ||
| 1195 | * kaweth_disconnect | ||
| 1196 | ****************************************************************/ | ||
| 1197 | static void kaweth_disconnect(struct usb_interface *intf) | ||
| 1198 | { | ||
| 1199 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | ||
| 1200 | struct net_device *netdev; | ||
| 1201 | |||
| 1202 | info("Unregistering"); | ||
| 1203 | |||
| 1204 | usb_set_intfdata(intf, NULL); | ||
| 1205 | if (!kaweth) { | ||
| 1206 | warn("unregistering non-existant device"); | ||
| 1207 | return; | ||
| 1208 | } | ||
| 1209 | netdev = kaweth->net; | ||
| 1210 | |||
| 1211 | dbg("Unregistering net device"); | ||
| 1212 | unregister_netdev(netdev); | ||
| 1213 | |||
| 1214 | usb_free_urb(kaweth->rx_urb); | ||
| 1215 | usb_free_urb(kaweth->tx_urb); | ||
| 1216 | usb_free_urb(kaweth->irq_urb); | ||
| 1217 | |||
| 1218 | usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); | ||
| 1219 | usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); | ||
| 1220 | |||
| 1221 | free_netdev(netdev); | ||
| 1222 | } | ||
| 1223 | |||
| 1224 | |||
| 1225 | // FIXME this completion stuff is a modified clone of | ||
| 1226 | // an OLD version of some stuff in usb.c ... | ||
| 1227 | struct usb_api_data { | ||
| 1228 | wait_queue_head_t wqh; | ||
| 1229 | int done; | ||
| 1230 | }; | ||
| 1231 | |||
| 1232 | /*-------------------------------------------------------------------* | ||
| 1233 | * completion handler for compatibility wrappers (sync control/bulk) * | ||
| 1234 | *-------------------------------------------------------------------*/ | ||
| 1235 | static void usb_api_blocking_completion(struct urb *urb) | ||
| 1236 | { | ||
| 1237 | struct usb_api_data *awd = (struct usb_api_data *)urb->context; | ||
| 1238 | |||
| 1239 | awd->done=1; | ||
| 1240 | wake_up(&awd->wqh); | ||
| 1241 | } | ||
| 1242 | |||
| 1243 | /*-------------------------------------------------------------------* | ||
| 1244 | * COMPATIBILITY STUFF * | ||
| 1245 | *-------------------------------------------------------------------*/ | ||
| 1246 | |||
| 1247 | // Starts urb and waits for completion or timeout | ||
| 1248 | static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length) | ||
| 1249 | { | ||
| 1250 | struct usb_api_data awd; | ||
| 1251 | int status; | ||
| 1252 | |||
| 1253 | init_waitqueue_head(&awd.wqh); | ||
| 1254 | awd.done = 0; | ||
| 1255 | |||
| 1256 | urb->context = &awd; | ||
| 1257 | status = usb_submit_urb(urb, GFP_NOIO); | ||
| 1258 | if (status) { | ||
| 1259 | // something went wrong | ||
| 1260 | usb_free_urb(urb); | ||
| 1261 | return status; | ||
| 1262 | } | ||
| 1263 | |||
| 1264 | if (!wait_event_timeout(awd.wqh, awd.done, timeout)) { | ||
| 1265 | // timeout | ||
| 1266 | warn("usb_control/bulk_msg: timeout"); | ||
| 1267 | usb_kill_urb(urb); // remove urb safely | ||
| 1268 | status = -ETIMEDOUT; | ||
| 1269 | } | ||
| 1270 | else { | ||
| 1271 | status = urb->status; | ||
| 1272 | } | ||
| 1273 | |||
| 1274 | if (actual_length) { | ||
| 1275 | *actual_length = urb->actual_length; | ||
| 1276 | } | ||
| 1277 | |||
| 1278 | usb_free_urb(urb); | ||
| 1279 | return status; | ||
| 1280 | } | ||
| 1281 | |||
| 1282 | /*-------------------------------------------------------------------*/ | ||
| 1283 | // returns status (negative) or length (positive) | ||
| 1284 | static int kaweth_internal_control_msg(struct usb_device *usb_dev, | ||
| 1285 | unsigned int pipe, | ||
| 1286 | struct usb_ctrlrequest *cmd, void *data, | ||
| 1287 | int len, int timeout) | ||
| 1288 | { | ||
| 1289 | struct urb *urb; | ||
| 1290 | int retv; | ||
| 1291 | int length = 0; /* shut up GCC */ | ||
| 1292 | |||
| 1293 | urb = usb_alloc_urb(0, GFP_NOIO); | ||
| 1294 | if (!urb) | ||
| 1295 | return -ENOMEM; | ||
| 1296 | |||
| 1297 | usb_fill_control_urb(urb, usb_dev, pipe, (unsigned char*)cmd, data, | ||
| 1298 | len, usb_api_blocking_completion, NULL); | ||
| 1299 | |||
| 1300 | retv = usb_start_wait_urb(urb, timeout, &length); | ||
| 1301 | if (retv < 0) { | ||
| 1302 | return retv; | ||
| 1303 | } | ||
| 1304 | else { | ||
| 1305 | return length; | ||
| 1306 | } | ||
| 1307 | } | ||
| 1308 | |||
| 1309 | |||
| 1310 | /**************************************************************** | ||
| 1311 | * kaweth_init | ||
| 1312 | ****************************************************************/ | ||
| 1313 | static int __init kaweth_init(void) | ||
| 1314 | { | ||
| 1315 | dbg("Driver loading"); | ||
| 1316 | return usb_register(&kaweth_driver); | ||
| 1317 | } | ||
| 1318 | |||
| 1319 | /**************************************************************** | ||
| 1320 | * kaweth_exit | ||
| 1321 | ****************************************************************/ | ||
| 1322 | static void __exit kaweth_exit(void) | ||
| 1323 | { | ||
| 1324 | usb_deregister(&kaweth_driver); | ||
| 1325 | } | ||
| 1326 | |||
| 1327 | module_init(kaweth_init); | ||
| 1328 | module_exit(kaweth_exit); | ||
| 1329 | |||
| 1330 | |||
| 1331 | |||
| 1332 | |||
| 1333 | |||
| 1334 | |||
| 1335 | |||
| 1336 | |||
| 1337 | |||
