Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1999-2005 Petko Manolov (petkan@users.sourceforge.net) |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * published by the Free Software Foundation. |
| 7 | * |
| 8 | * ChangeLog: |
| 9 | * .... Most of the time spent on reading sources & docs. |
| 10 | * v0.2.x First official release for the Linux kernel. |
| 11 | * v0.3.0 Beutified and structured, some bugs fixed. |
| 12 | * v0.3.x URBifying bulk requests and bugfixing. First relatively |
| 13 | * stable release. Still can touch device's registers only |
| 14 | * from top-halves. |
| 15 | * v0.4.0 Control messages remained unurbified are now URBs. |
| 16 | * Now we can touch the HW at any time. |
| 17 | * v0.4.9 Control urbs again use process context to wait. Argh... |
| 18 | * Some long standing bugs (enable_net_traffic) fixed. |
| 19 | * Also nasty trick about resubmiting control urb from |
| 20 | * interrupt context used. Please let me know how it |
| 21 | * behaves. Pegasus II support added since this version. |
| 22 | * TODO: suppressing HCD warnings spewage on disconnect. |
| 23 | * v0.4.13 Ethernet address is now set at probe(), not at open() |
| 24 | * time as this seems to break dhcpd. |
| 25 | * v0.5.0 branch to 2.5.x kernels |
| 26 | * v0.5.1 ethtool support added |
| 27 | * v0.5.5 rx socket buffers are in a pool and the their allocation |
| 28 | * is out of the interrupt routine. |
| 29 | */ |
| 30 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | #include <linux/sched.h> |
| 32 | #include <linux/slab.h> |
| 33 | #include <linux/init.h> |
| 34 | #include <linux/delay.h> |
| 35 | #include <linux/netdevice.h> |
| 36 | #include <linux/etherdevice.h> |
| 37 | #include <linux/ethtool.h> |
| 38 | #include <linux/mii.h> |
| 39 | #include <linux/usb.h> |
| 40 | #include <linux/module.h> |
| 41 | #include <asm/byteorder.h> |
| 42 | #include <asm/uaccess.h> |
| 43 | #include "pegasus.h" |
| 44 | |
| 45 | /* |
| 46 | * Version Information |
| 47 | */ |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 48 | #define DRIVER_VERSION "v0.6.13 (2005/11/13)" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | #define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>" |
| 50 | #define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver" |
| 51 | |
| 52 | static const char driver_name[] = "pegasus"; |
| 53 | |
| 54 | #undef PEGASUS_WRITE_EEPROM |
| 55 | #define BMSR_MEDIA (BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | \ |
| 56 | BMSR_100FULL | BMSR_ANEGCAPABLE) |
| 57 | |
| 58 | static int loopback = 0; |
| 59 | static int mii_mode = 0; |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 60 | static char *devid=NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | |
| 62 | static struct usb_eth_dev usb_dev_id[] = { |
| 63 | #define PEGASUS_DEV(pn, vid, pid, flags) \ |
| 64 | {.name = pn, .vendor = vid, .device = pid, .private = flags}, |
| 65 | #include "pegasus.h" |
| 66 | #undef PEGASUS_DEV |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 67 | {NULL, 0, 0, 0}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | {NULL, 0, 0, 0} |
| 69 | }; |
| 70 | |
| 71 | static struct usb_device_id pegasus_ids[] = { |
| 72 | #define PEGASUS_DEV(pn, vid, pid, flags) \ |
| 73 | {.match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = vid, .idProduct = pid}, |
| 74 | #include "pegasus.h" |
| 75 | #undef PEGASUS_DEV |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 76 | {}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | {} |
| 78 | }; |
| 79 | |
| 80 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 81 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 82 | MODULE_LICENSE("GPL"); |
| 83 | module_param(loopback, bool, 0); |
| 84 | module_param(mii_mode, bool, 0); |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 85 | module_param(devid, charp, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)"); |
| 87 | MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0"); |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 88 | MODULE_PARM_DESC(devid, "The format is: 'DEV_name:VendorID:DeviceID:Flags'"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | |
| 90 | /* use ethtool to change the level for any given device */ |
| 91 | static int msg_level = -1; |
| 92 | module_param (msg_level, int, 0); |
| 93 | MODULE_PARM_DESC (msg_level, "Override default message level"); |
| 94 | |
| 95 | MODULE_DEVICE_TABLE(usb, pegasus_ids); |
| 96 | |
| 97 | static int update_eth_regs_async(pegasus_t *); |
| 98 | /* Aargh!!! I _really_ hate such tweaks */ |
| 99 | static void ctrl_callback(struct urb *urb, struct pt_regs *regs) |
| 100 | { |
| 101 | pegasus_t *pegasus = urb->context; |
| 102 | |
| 103 | if (!pegasus) |
| 104 | return; |
| 105 | |
| 106 | switch (urb->status) { |
| 107 | case 0: |
| 108 | if (pegasus->flags & ETH_REGS_CHANGE) { |
| 109 | pegasus->flags &= ~ETH_REGS_CHANGE; |
| 110 | pegasus->flags |= ETH_REGS_CHANGED; |
| 111 | update_eth_regs_async(pegasus); |
| 112 | return; |
| 113 | } |
| 114 | break; |
| 115 | case -EINPROGRESS: |
| 116 | return; |
| 117 | case -ENOENT: |
| 118 | break; |
| 119 | default: |
| 120 | if (netif_msg_drv(pegasus)) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 121 | dev_dbg(&pegasus->intf->dev, "%s, status %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | __FUNCTION__, urb->status); |
| 123 | } |
| 124 | pegasus->flags &= ~ETH_REGS_CHANGED; |
| 125 | wake_up(&pegasus->ctrl_wait); |
| 126 | } |
| 127 | |
| 128 | static int get_registers(pegasus_t * pegasus, __u16 indx, __u16 size, |
| 129 | void *data) |
| 130 | { |
| 131 | int ret; |
| 132 | char *buffer; |
| 133 | DECLARE_WAITQUEUE(wait, current); |
| 134 | |
| 135 | buffer = kmalloc(size, GFP_KERNEL); |
| 136 | if (!buffer) { |
| 137 | if (netif_msg_drv(pegasus)) |
| 138 | dev_warn(&pegasus->intf->dev, "out of memory in %s\n", |
| 139 | __FUNCTION__); |
| 140 | return -ENOMEM; |
| 141 | } |
| 142 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 143 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 144 | while (pegasus->flags & ETH_REGS_CHANGED) |
| 145 | schedule(); |
| 146 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 147 | set_current_state(TASK_RUNNING); |
| 148 | |
| 149 | pegasus->dr.bRequestType = PEGASUS_REQT_READ; |
| 150 | pegasus->dr.bRequest = PEGASUS_REQ_GET_REGS; |
| 151 | pegasus->dr.wValue = cpu_to_le16(0); |
| 152 | pegasus->dr.wIndex = cpu_to_le16p(&indx); |
| 153 | pegasus->dr.wLength = cpu_to_le16p(&size); |
| 154 | pegasus->ctrl_urb->transfer_buffer_length = size; |
| 155 | |
| 156 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, |
| 157 | usb_rcvctrlpipe(pegasus->usb, 0), |
| 158 | (char *) &pegasus->dr, |
| 159 | buffer, size, ctrl_callback, pegasus); |
| 160 | |
| 161 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 162 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 163 | |
| 164 | /* using ATOMIC, we'd never wake up if we slept */ |
| 165 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame^] | 166 | if (ret == -ENODEV) |
| 167 | netif_device_detach(pegasus->net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | if (netif_msg_drv(pegasus)) |
| 169 | dev_err(&pegasus->intf->dev, "%s, status %d\n", |
| 170 | __FUNCTION__, ret); |
| 171 | goto out; |
| 172 | } |
| 173 | |
| 174 | schedule(); |
| 175 | out: |
| 176 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 177 | memcpy(data, buffer, size); |
| 178 | kfree(buffer); |
| 179 | |
| 180 | return ret; |
| 181 | } |
| 182 | |
| 183 | static int set_registers(pegasus_t * pegasus, __u16 indx, __u16 size, |
| 184 | void *data) |
| 185 | { |
| 186 | int ret; |
| 187 | char *buffer; |
| 188 | DECLARE_WAITQUEUE(wait, current); |
| 189 | |
| 190 | buffer = kmalloc(size, GFP_KERNEL); |
| 191 | if (!buffer) { |
| 192 | if (netif_msg_drv(pegasus)) |
| 193 | dev_warn(&pegasus->intf->dev, "out of memory in %s\n", |
| 194 | __FUNCTION__); |
| 195 | return -ENOMEM; |
| 196 | } |
| 197 | memcpy(buffer, data, size); |
| 198 | |
| 199 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 200 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 201 | while (pegasus->flags & ETH_REGS_CHANGED) |
| 202 | schedule(); |
| 203 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 204 | set_current_state(TASK_RUNNING); |
| 205 | |
| 206 | pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; |
| 207 | pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS; |
| 208 | pegasus->dr.wValue = cpu_to_le16(0); |
| 209 | pegasus->dr.wIndex = cpu_to_le16p(&indx); |
| 210 | pegasus->dr.wLength = cpu_to_le16p(&size); |
| 211 | pegasus->ctrl_urb->transfer_buffer_length = size; |
| 212 | |
| 213 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, |
| 214 | usb_sndctrlpipe(pegasus->usb, 0), |
| 215 | (char *) &pegasus->dr, |
| 216 | buffer, size, ctrl_callback, pegasus); |
| 217 | |
| 218 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 219 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 220 | |
| 221 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame^] | 222 | if (ret == -ENODEV) |
| 223 | netif_device_detach(pegasus->net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | if (netif_msg_drv(pegasus)) |
| 225 | dev_err(&pegasus->intf->dev, "%s, status %d\n", |
| 226 | __FUNCTION__, ret); |
| 227 | goto out; |
| 228 | } |
| 229 | |
| 230 | schedule(); |
| 231 | out: |
| 232 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 233 | kfree(buffer); |
| 234 | |
| 235 | return ret; |
| 236 | } |
| 237 | |
| 238 | static int set_register(pegasus_t * pegasus, __u16 indx, __u8 data) |
| 239 | { |
| 240 | int ret; |
| 241 | char *tmp; |
| 242 | DECLARE_WAITQUEUE(wait, current); |
| 243 | |
| 244 | tmp = kmalloc(1, GFP_KERNEL); |
| 245 | if (!tmp) { |
| 246 | if (netif_msg_drv(pegasus)) |
| 247 | dev_warn(&pegasus->intf->dev, "out of memory in %s\n", |
| 248 | __FUNCTION__); |
| 249 | return -ENOMEM; |
| 250 | } |
| 251 | memcpy(tmp, &data, 1); |
| 252 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 253 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 254 | while (pegasus->flags & ETH_REGS_CHANGED) |
| 255 | schedule(); |
| 256 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 257 | set_current_state(TASK_RUNNING); |
| 258 | |
| 259 | pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; |
| 260 | pegasus->dr.bRequest = PEGASUS_REQ_SET_REG; |
| 261 | pegasus->dr.wValue = cpu_to_le16(data); |
| 262 | pegasus->dr.wIndex = cpu_to_le16p(&indx); |
| 263 | pegasus->dr.wLength = cpu_to_le16(1); |
| 264 | pegasus->ctrl_urb->transfer_buffer_length = 1; |
| 265 | |
| 266 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, |
| 267 | usb_sndctrlpipe(pegasus->usb, 0), |
| 268 | (char *) &pegasus->dr, |
Petko Manolov | 016534c | 2006-03-30 09:59:22 +0300 | [diff] [blame] | 269 | tmp, 1, ctrl_callback, pegasus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | |
| 271 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 272 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 273 | |
| 274 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame^] | 275 | if (ret == -ENODEV) |
| 276 | netif_device_detach(pegasus->net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | if (netif_msg_drv(pegasus)) |
| 278 | dev_err(&pegasus->intf->dev, "%s, status %d\n", |
| 279 | __FUNCTION__, ret); |
| 280 | goto out; |
| 281 | } |
| 282 | |
| 283 | schedule(); |
| 284 | out: |
| 285 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 286 | kfree(tmp); |
| 287 | |
| 288 | return ret; |
| 289 | } |
| 290 | |
| 291 | static int update_eth_regs_async(pegasus_t * pegasus) |
| 292 | { |
| 293 | int ret; |
| 294 | |
| 295 | pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; |
| 296 | pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS; |
| 297 | pegasus->dr.wValue = 0; |
| 298 | pegasus->dr.wIndex = cpu_to_le16(EthCtrl0); |
| 299 | pegasus->dr.wLength = cpu_to_le16(3); |
| 300 | pegasus->ctrl_urb->transfer_buffer_length = 3; |
| 301 | |
| 302 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, |
| 303 | usb_sndctrlpipe(pegasus->usb, 0), |
| 304 | (char *) &pegasus->dr, |
| 305 | pegasus->eth_regs, 3, ctrl_callback, pegasus); |
| 306 | |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame^] | 307 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { |
| 308 | if (ret == -ENODEV) |
| 309 | netif_device_detach(pegasus->net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | if (netif_msg_drv(pegasus)) |
| 311 | dev_err(&pegasus->intf->dev, "%s, status %d\n", |
| 312 | __FUNCTION__, ret); |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame^] | 313 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | |
| 315 | return ret; |
| 316 | } |
| 317 | |
| 318 | static int read_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 * regd) |
| 319 | { |
| 320 | int i; |
| 321 | __u8 data[4] = { phy, 0, 0, indx }; |
| 322 | __le16 regdi; |
| 323 | int ret; |
| 324 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 325 | set_register(pegasus, PhyCtrl, 0); |
| 326 | set_registers(pegasus, PhyAddr, sizeof (data), data); |
| 327 | set_register(pegasus, PhyCtrl, (indx | PHY_READ)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | for (i = 0; i < REG_TIMEOUT; i++) { |
| 329 | ret = get_registers(pegasus, PhyCtrl, 1, data); |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 330 | if (ret == -ESHUTDOWN) |
| 331 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | if (data[0] & PHY_DONE) |
| 333 | break; |
| 334 | } |
| 335 | if (i < REG_TIMEOUT) { |
| 336 | ret = get_registers(pegasus, PhyData, 2, ®di); |
| 337 | *regd = le16_to_cpu(regdi); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 338 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | } |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 340 | fail: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | if (netif_msg_drv(pegasus)) |
| 342 | dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__); |
| 343 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 344 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | } |
| 346 | |
| 347 | static int mdio_read(struct net_device *dev, int phy_id, int loc) |
| 348 | { |
| 349 | pegasus_t *pegasus = (pegasus_t *) netdev_priv(dev); |
| 350 | u16 res; |
| 351 | |
| 352 | read_mii_word(pegasus, phy_id, loc, &res); |
| 353 | return (int)res; |
| 354 | } |
| 355 | |
| 356 | static int write_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 regd) |
| 357 | { |
| 358 | int i; |
| 359 | __u8 data[4] = { phy, 0, 0, indx }; |
| 360 | int ret; |
| 361 | |
| 362 | data[1] = (u8) regd; |
| 363 | data[2] = (u8) (regd >> 8); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 364 | set_register(pegasus, PhyCtrl, 0); |
| 365 | set_registers(pegasus, PhyAddr, sizeof(data), data); |
| 366 | set_register(pegasus, PhyCtrl, (indx | PHY_WRITE)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | for (i = 0; i < REG_TIMEOUT; i++) { |
| 368 | ret = get_registers(pegasus, PhyCtrl, 1, data); |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 369 | if (ret == -ESHUTDOWN) |
| 370 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | if (data[0] & PHY_DONE) |
| 372 | break; |
| 373 | } |
| 374 | if (i < REG_TIMEOUT) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 375 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 377 | fail: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | if (netif_msg_drv(pegasus)) |
| 379 | dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 380 | return -ETIMEDOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | } |
| 382 | |
| 383 | static void mdio_write(struct net_device *dev, int phy_id, int loc, int val) |
| 384 | { |
| 385 | pegasus_t *pegasus = (pegasus_t *) netdev_priv(dev); |
| 386 | |
| 387 | write_mii_word(pegasus, phy_id, loc, val); |
| 388 | } |
| 389 | |
| 390 | static int read_eprom_word(pegasus_t * pegasus, __u8 index, __u16 * retdata) |
| 391 | { |
| 392 | int i; |
| 393 | __u8 tmp; |
| 394 | __le16 retdatai; |
| 395 | int ret; |
| 396 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 397 | set_register(pegasus, EpromCtrl, 0); |
| 398 | set_register(pegasus, EpromOffset, index); |
| 399 | set_register(pegasus, EpromCtrl, EPROM_READ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | |
| 401 | for (i = 0; i < REG_TIMEOUT; i++) { |
| 402 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); |
| 403 | if (tmp & EPROM_DONE) |
| 404 | break; |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 405 | if (ret == -ESHUTDOWN) |
| 406 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | } |
| 408 | if (i < REG_TIMEOUT) { |
| 409 | ret = get_registers(pegasus, EpromData, 2, &retdatai); |
| 410 | *retdata = le16_to_cpu(retdatai); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 411 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | } |
| 413 | |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 414 | fail: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | if (netif_msg_drv(pegasus)) |
| 416 | dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 417 | return -ETIMEDOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | } |
| 419 | |
| 420 | #ifdef PEGASUS_WRITE_EEPROM |
| 421 | static inline void enable_eprom_write(pegasus_t * pegasus) |
| 422 | { |
| 423 | __u8 tmp; |
| 424 | int ret; |
| 425 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 426 | get_registers(pegasus, EthCtrl2, 1, &tmp); |
| 427 | set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | } |
| 429 | |
| 430 | static inline void disable_eprom_write(pegasus_t * pegasus) |
| 431 | { |
| 432 | __u8 tmp; |
| 433 | int ret; |
| 434 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 435 | get_registers(pegasus, EthCtrl2, 1, &tmp); |
| 436 | set_register(pegasus, EpromCtrl, 0); |
| 437 | set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | } |
| 439 | |
| 440 | static int write_eprom_word(pegasus_t * pegasus, __u8 index, __u16 data) |
| 441 | { |
| 442 | int i; |
| 443 | __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE }; |
| 444 | int ret; |
| 445 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 446 | set_registers(pegasus, EpromOffset, 4, d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | enable_eprom_write(pegasus); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 448 | set_register(pegasus, EpromOffset, index); |
| 449 | set_registers(pegasus, EpromData, 2, &data); |
| 450 | set_register(pegasus, EpromCtrl, EPROM_WRITE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | |
| 452 | for (i = 0; i < REG_TIMEOUT; i++) { |
| 453 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 454 | if (ret == -ESHUTDOWN) |
| 455 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | if (tmp & EPROM_DONE) |
| 457 | break; |
| 458 | } |
| 459 | disable_eprom_write(pegasus); |
| 460 | if (i < REG_TIMEOUT) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 461 | return ret; |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 462 | fail: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | if (netif_msg_drv(pegasus)) |
| 464 | dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 465 | return -ETIMEDOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | } |
| 467 | #endif /* PEGASUS_WRITE_EEPROM */ |
| 468 | |
| 469 | static inline void get_node_id(pegasus_t * pegasus, __u8 * id) |
| 470 | { |
| 471 | int i; |
| 472 | __u16 w16; |
| 473 | |
| 474 | for (i = 0; i < 3; i++) { |
| 475 | read_eprom_word(pegasus, i, &w16); |
| 476 | ((__le16 *) id)[i] = cpu_to_le16p(&w16); |
| 477 | } |
| 478 | } |
| 479 | |
| 480 | static void set_ethernet_addr(pegasus_t * pegasus) |
| 481 | { |
| 482 | __u8 node_id[6]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | |
| 484 | get_node_id(pegasus, node_id); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 485 | set_registers(pegasus, EthID, sizeof (node_id), node_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | memcpy(pegasus->net->dev_addr, node_id, sizeof (node_id)); |
| 487 | } |
| 488 | |
| 489 | static inline int reset_mac(pegasus_t * pegasus) |
| 490 | { |
| 491 | __u8 data = 0x8; |
| 492 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 493 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 494 | set_register(pegasus, EthCtrl1, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | for (i = 0; i < REG_TIMEOUT; i++) { |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 496 | get_registers(pegasus, EthCtrl1, 1, &data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | if (~data & 0x08) { |
| 498 | if (loopback & 1) |
| 499 | break; |
| 500 | if (mii_mode && (pegasus->features & HAS_HOME_PNA)) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 501 | set_register(pegasus, Gpio1, 0x34); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | else |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 503 | set_register(pegasus, Gpio1, 0x26); |
| 504 | set_register(pegasus, Gpio0, pegasus->features); |
| 505 | set_register(pegasus, Gpio0, DEFAULT_GPIO_SET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | break; |
| 507 | } |
| 508 | } |
| 509 | if (i == REG_TIMEOUT) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 510 | return -ETIMEDOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | |
| 512 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || |
| 513 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 514 | set_register(pegasus, Gpio0, 0x24); |
| 515 | set_register(pegasus, Gpio0, 0x26); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | } |
| 517 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) { |
| 518 | __u16 auxmode; |
| 519 | read_mii_word(pegasus, 3, 0x1b, &auxmode); |
| 520 | write_mii_word(pegasus, 3, 0x1b, auxmode | 4); |
| 521 | } |
| 522 | |
| 523 | return 0; |
| 524 | } |
| 525 | |
| 526 | static int enable_net_traffic(struct net_device *dev, struct usb_device *usb) |
| 527 | { |
| 528 | __u16 linkpart; |
| 529 | __u8 data[4]; |
| 530 | pegasus_t *pegasus = netdev_priv(dev); |
| 531 | int ret; |
| 532 | |
| 533 | read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart); |
| 534 | data[0] = 0xc9; |
| 535 | data[1] = 0; |
| 536 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL)) |
| 537 | data[1] |= 0x20; /* set full duplex */ |
| 538 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF)) |
| 539 | data[1] |= 0x10; /* set 100 Mbps */ |
| 540 | if (mii_mode) |
| 541 | data[1] = 0; |
| 542 | data[2] = (loopback & 1) ? 0x09 : 0x01; |
| 543 | |
| 544 | memcpy(pegasus->eth_regs, data, sizeof (data)); |
| 545 | ret = set_registers(pegasus, EthCtrl0, 3, data); |
| 546 | |
| 547 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || |
Malte Doersam | efafe6f | 2006-01-28 17:48:33 +0100 | [diff] [blame] | 548 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { |
| 550 | u16 auxmode; |
| 551 | read_mii_word(pegasus, 0, 0x1b, &auxmode); |
| 552 | write_mii_word(pegasus, 0, 0x1b, auxmode | 4); |
| 553 | } |
| 554 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 555 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | } |
| 557 | |
| 558 | static void fill_skb_pool(pegasus_t * pegasus) |
| 559 | { |
| 560 | int i; |
| 561 | |
| 562 | for (i = 0; i < RX_SKBS; i++) { |
| 563 | if (pegasus->rx_pool[i]) |
| 564 | continue; |
| 565 | pegasus->rx_pool[i] = dev_alloc_skb(PEGASUS_MTU + 2); |
| 566 | /* |
| 567 | ** we give up if the allocation fail. the tasklet will be |
| 568 | ** rescheduled again anyway... |
| 569 | */ |
| 570 | if (pegasus->rx_pool[i] == NULL) |
| 571 | return; |
| 572 | pegasus->rx_pool[i]->dev = pegasus->net; |
| 573 | skb_reserve(pegasus->rx_pool[i], 2); |
| 574 | } |
| 575 | } |
| 576 | |
| 577 | static void free_skb_pool(pegasus_t * pegasus) |
| 578 | { |
| 579 | int i; |
| 580 | |
| 581 | for (i = 0; i < RX_SKBS; i++) { |
| 582 | if (pegasus->rx_pool[i]) { |
| 583 | dev_kfree_skb(pegasus->rx_pool[i]); |
| 584 | pegasus->rx_pool[i] = NULL; |
| 585 | } |
| 586 | } |
| 587 | } |
| 588 | |
| 589 | static inline struct sk_buff *pull_skb(pegasus_t * pegasus) |
| 590 | { |
| 591 | int i; |
| 592 | struct sk_buff *skb; |
| 593 | |
| 594 | for (i = 0; i < RX_SKBS; i++) { |
| 595 | if (likely(pegasus->rx_pool[i] != NULL)) { |
| 596 | skb = pegasus->rx_pool[i]; |
| 597 | pegasus->rx_pool[i] = NULL; |
| 598 | return skb; |
| 599 | } |
| 600 | } |
| 601 | return NULL; |
| 602 | } |
| 603 | |
| 604 | static void read_bulk_callback(struct urb *urb, struct pt_regs *regs) |
| 605 | { |
| 606 | pegasus_t *pegasus = urb->context; |
| 607 | struct net_device *net; |
| 608 | int rx_status, count = urb->actual_length; |
| 609 | u8 *buf = urb->transfer_buffer; |
| 610 | __u16 pkt_len; |
| 611 | |
| 612 | if (!pegasus) |
| 613 | return; |
| 614 | |
| 615 | net = pegasus->net; |
| 616 | if (!netif_device_present(net) || !netif_running(net)) |
| 617 | return; |
| 618 | |
| 619 | switch (urb->status) { |
| 620 | case 0: |
| 621 | break; |
| 622 | case -ETIMEDOUT: |
| 623 | if (netif_msg_rx_err(pegasus)) |
| 624 | pr_debug("%s: reset MAC\n", net->name); |
| 625 | pegasus->flags &= ~PEGASUS_RX_BUSY; |
| 626 | break; |
| 627 | case -EPIPE: /* stall, or disconnect from TT */ |
| 628 | /* FIXME schedule work to clear the halt */ |
| 629 | if (netif_msg_rx_err(pegasus)) |
| 630 | printk(KERN_WARNING "%s: no rx stall recovery\n", |
| 631 | net->name); |
| 632 | return; |
| 633 | case -ENOENT: |
| 634 | case -ECONNRESET: |
| 635 | case -ESHUTDOWN: |
| 636 | if (netif_msg_ifdown(pegasus)) |
| 637 | pr_debug("%s: rx unlink, %d\n", net->name, urb->status); |
| 638 | return; |
| 639 | default: |
| 640 | if (netif_msg_rx_err(pegasus)) |
| 641 | pr_debug("%s: RX status %d\n", net->name, urb->status); |
| 642 | goto goon; |
| 643 | } |
| 644 | |
| 645 | if (!count || count < 4) |
| 646 | goto goon; |
| 647 | |
| 648 | rx_status = buf[count - 2]; |
| 649 | if (rx_status & 0x1e) { |
| 650 | if (netif_msg_rx_err(pegasus)) |
| 651 | pr_debug("%s: RX packet error %x\n", |
| 652 | net->name, rx_status); |
| 653 | pegasus->stats.rx_errors++; |
| 654 | if (rx_status & 0x06) // long or runt |
| 655 | pegasus->stats.rx_length_errors++; |
| 656 | if (rx_status & 0x08) |
| 657 | pegasus->stats.rx_crc_errors++; |
| 658 | if (rx_status & 0x10) // extra bits |
| 659 | pegasus->stats.rx_frame_errors++; |
| 660 | goto goon; |
| 661 | } |
| 662 | if (pegasus->chip == 0x8513) { |
| 663 | pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer); |
| 664 | pkt_len &= 0x0fff; |
| 665 | pegasus->rx_skb->data += 2; |
| 666 | } else { |
| 667 | pkt_len = buf[count - 3] << 8; |
| 668 | pkt_len += buf[count - 4]; |
| 669 | pkt_len &= 0xfff; |
| 670 | pkt_len -= 8; |
| 671 | } |
| 672 | |
| 673 | /* |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 674 | * If the packet is unreasonably long, quietly drop it rather than |
| 675 | * kernel panicing by calling skb_put. |
| 676 | */ |
| 677 | if (pkt_len > PEGASUS_MTU) |
| 678 | goto goon; |
| 679 | |
| 680 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | * at this point we are sure pegasus->rx_skb != NULL |
| 682 | * so we go ahead and pass up the packet. |
| 683 | */ |
| 684 | skb_put(pegasus->rx_skb, pkt_len); |
| 685 | pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net); |
| 686 | netif_rx(pegasus->rx_skb); |
| 687 | pegasus->stats.rx_packets++; |
| 688 | pegasus->stats.rx_bytes += pkt_len; |
| 689 | |
| 690 | if (pegasus->flags & PEGASUS_UNPLUG) |
| 691 | return; |
| 692 | |
| 693 | spin_lock(&pegasus->rx_pool_lock); |
| 694 | pegasus->rx_skb = pull_skb(pegasus); |
| 695 | spin_unlock(&pegasus->rx_pool_lock); |
| 696 | |
| 697 | if (pegasus->rx_skb == NULL) |
| 698 | goto tl_sched; |
| 699 | goon: |
| 700 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, |
| 701 | usb_rcvbulkpipe(pegasus->usb, 1), |
| 702 | pegasus->rx_skb->data, PEGASUS_MTU + 8, |
| 703 | read_bulk_callback, pegasus); |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame^] | 704 | rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); |
| 705 | if (rx_status == -ENODEV) |
| 706 | netif_device_detach(pegasus->net); |
| 707 | else if (rx_status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | pegasus->flags |= PEGASUS_RX_URB_FAIL; |
| 709 | goto tl_sched; |
| 710 | } else { |
| 711 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; |
| 712 | } |
| 713 | |
| 714 | return; |
| 715 | |
| 716 | tl_sched: |
| 717 | tasklet_schedule(&pegasus->rx_tl); |
| 718 | } |
| 719 | |
| 720 | static void rx_fixup(unsigned long data) |
| 721 | { |
| 722 | pegasus_t *pegasus; |
| 723 | unsigned long flags; |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame^] | 724 | int status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | |
| 726 | pegasus = (pegasus_t *) data; |
| 727 | if (pegasus->flags & PEGASUS_UNPLUG) |
| 728 | return; |
| 729 | |
| 730 | spin_lock_irqsave(&pegasus->rx_pool_lock, flags); |
| 731 | fill_skb_pool(pegasus); |
| 732 | if (pegasus->flags & PEGASUS_RX_URB_FAIL) |
| 733 | if (pegasus->rx_skb) |
| 734 | goto try_again; |
| 735 | if (pegasus->rx_skb == NULL) { |
| 736 | pegasus->rx_skb = pull_skb(pegasus); |
| 737 | } |
| 738 | if (pegasus->rx_skb == NULL) { |
| 739 | if (netif_msg_rx_err(pegasus)) |
| 740 | printk(KERN_WARNING "%s: low on memory\n", |
| 741 | pegasus->net->name); |
| 742 | tasklet_schedule(&pegasus->rx_tl); |
| 743 | goto done; |
| 744 | } |
| 745 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, |
| 746 | usb_rcvbulkpipe(pegasus->usb, 1), |
| 747 | pegasus->rx_skb->data, PEGASUS_MTU + 8, |
| 748 | read_bulk_callback, pegasus); |
| 749 | try_again: |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame^] | 750 | status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); |
| 751 | if (status == -ENODEV) |
| 752 | netif_device_detach(pegasus->net); |
| 753 | else if (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | pegasus->flags |= PEGASUS_RX_URB_FAIL; |
| 755 | tasklet_schedule(&pegasus->rx_tl); |
| 756 | } else { |
| 757 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; |
| 758 | } |
| 759 | done: |
| 760 | spin_unlock_irqrestore(&pegasus->rx_pool_lock, flags); |
| 761 | } |
| 762 | |
| 763 | static void write_bulk_callback(struct urb *urb, struct pt_regs *regs) |
| 764 | { |
| 765 | pegasus_t *pegasus = urb->context; |
| 766 | struct net_device *net = pegasus->net; |
| 767 | |
| 768 | if (!pegasus) |
| 769 | return; |
| 770 | |
| 771 | if (!netif_device_present(net) || !netif_running(net)) |
| 772 | return; |
| 773 | |
| 774 | switch (urb->status) { |
| 775 | case -EPIPE: |
| 776 | /* FIXME schedule_work() to clear the tx halt */ |
| 777 | netif_stop_queue(net); |
| 778 | if (netif_msg_tx_err(pegasus)) |
| 779 | printk(KERN_WARNING "%s: no tx stall recovery\n", |
| 780 | net->name); |
| 781 | return; |
| 782 | case -ENOENT: |
| 783 | case -ECONNRESET: |
| 784 | case -ESHUTDOWN: |
| 785 | if (netif_msg_ifdown(pegasus)) |
| 786 | pr_debug("%s: tx unlink, %d\n", net->name, urb->status); |
| 787 | return; |
| 788 | default: |
| 789 | if (netif_msg_tx_err(pegasus)) |
| 790 | pr_info("%s: TX status %d\n", net->name, urb->status); |
| 791 | /* FALL THROUGH */ |
| 792 | case 0: |
| 793 | break; |
| 794 | } |
| 795 | |
| 796 | net->trans_start = jiffies; |
| 797 | netif_wake_queue(net); |
| 798 | } |
| 799 | |
| 800 | static void intr_callback(struct urb *urb, struct pt_regs *regs) |
| 801 | { |
| 802 | pegasus_t *pegasus = urb->context; |
| 803 | struct net_device *net; |
| 804 | int status; |
| 805 | |
| 806 | if (!pegasus) |
| 807 | return; |
| 808 | net = pegasus->net; |
| 809 | |
| 810 | switch (urb->status) { |
| 811 | case 0: |
| 812 | break; |
| 813 | case -ECONNRESET: /* unlink */ |
| 814 | case -ENOENT: |
| 815 | case -ESHUTDOWN: |
| 816 | return; |
| 817 | default: |
| 818 | /* some Pegasus-I products report LOTS of data |
| 819 | * toggle errors... avoid log spamming |
| 820 | */ |
| 821 | if (netif_msg_timer(pegasus)) |
| 822 | pr_debug("%s: intr status %d\n", net->name, |
| 823 | urb->status); |
| 824 | } |
| 825 | |
| 826 | if (urb->actual_length >= 6) { |
| 827 | u8 * d = urb->transfer_buffer; |
| 828 | |
| 829 | /* byte 0 == tx_status1, reg 2B */ |
| 830 | if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL |
| 831 | |LATE_COL|JABBER_TIMEOUT)) { |
| 832 | pegasus->stats.tx_errors++; |
| 833 | if (d[0] & TX_UNDERRUN) |
| 834 | pegasus->stats.tx_fifo_errors++; |
| 835 | if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT)) |
| 836 | pegasus->stats.tx_aborted_errors++; |
| 837 | if (d[0] & LATE_COL) |
| 838 | pegasus->stats.tx_window_errors++; |
| 839 | } |
| 840 | |
| 841 | /* d[5].LINK_STATUS lies on some adapters. |
| 842 | * d[0].NO_CARRIER kicks in only with failed TX. |
| 843 | * ... so monitoring with MII may be safest. |
| 844 | */ |
| 845 | if (d[0] & NO_CARRIER) |
| 846 | netif_carrier_off(net); |
| 847 | else |
| 848 | netif_carrier_on(net); |
| 849 | |
| 850 | /* bytes 3-4 == rx_lostpkt, reg 2E/2F */ |
| 851 | pegasus->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4]; |
| 852 | } |
| 853 | |
| 854 | status = usb_submit_urb(urb, SLAB_ATOMIC); |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame^] | 855 | if (status == -ENODEV) |
| 856 | netif_device_detach(pegasus->net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | if (status && netif_msg_timer(pegasus)) |
| 858 | printk(KERN_ERR "%s: can't resubmit interrupt urb, %d\n", |
| 859 | net->name, status); |
| 860 | } |
| 861 | |
| 862 | static void pegasus_tx_timeout(struct net_device *net) |
| 863 | { |
| 864 | pegasus_t *pegasus = netdev_priv(net); |
| 865 | if (netif_msg_timer(pegasus)) |
| 866 | printk(KERN_WARNING "%s: tx timeout\n", net->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | usb_unlink_urb(pegasus->tx_urb); |
| 868 | pegasus->stats.tx_errors++; |
| 869 | } |
| 870 | |
| 871 | static int pegasus_start_xmit(struct sk_buff *skb, struct net_device *net) |
| 872 | { |
| 873 | pegasus_t *pegasus = netdev_priv(net); |
| 874 | int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3; |
| 875 | int res; |
| 876 | __u16 l16 = skb->len; |
| 877 | |
| 878 | netif_stop_queue(net); |
| 879 | |
| 880 | ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16); |
| 881 | memcpy(pegasus->tx_buff + 2, skb->data, skb->len); |
| 882 | usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb, |
| 883 | usb_sndbulkpipe(pegasus->usb, 2), |
| 884 | pegasus->tx_buff, count, |
| 885 | write_bulk_callback, pegasus); |
| 886 | if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) { |
| 887 | if (netif_msg_tx_err(pegasus)) |
| 888 | printk(KERN_WARNING "%s: fail tx, %d\n", |
| 889 | net->name, res); |
| 890 | switch (res) { |
| 891 | case -EPIPE: /* stall, or disconnect from TT */ |
| 892 | /* cleanup should already have been scheduled */ |
| 893 | break; |
| 894 | case -ENODEV: /* disconnect() upcoming */ |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame^] | 895 | netif_device_detach(pegasus->net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | break; |
| 897 | default: |
| 898 | pegasus->stats.tx_errors++; |
| 899 | netif_start_queue(net); |
| 900 | } |
| 901 | } else { |
| 902 | pegasus->stats.tx_packets++; |
| 903 | pegasus->stats.tx_bytes += skb->len; |
| 904 | net->trans_start = jiffies; |
| 905 | } |
| 906 | dev_kfree_skb(skb); |
| 907 | |
| 908 | return 0; |
| 909 | } |
| 910 | |
| 911 | static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev) |
| 912 | { |
| 913 | return &((pegasus_t *) netdev_priv(dev))->stats; |
| 914 | } |
| 915 | |
| 916 | static inline void disable_net_traffic(pegasus_t * pegasus) |
| 917 | { |
| 918 | int tmp = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 919 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 920 | set_registers(pegasus, EthCtrl0, 2, &tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 921 | } |
| 922 | |
| 923 | static inline void get_interrupt_interval(pegasus_t * pegasus) |
| 924 | { |
| 925 | __u8 data[2]; |
| 926 | |
| 927 | read_eprom_word(pegasus, 4, (__u16 *) data); |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 928 | if (pegasus->usb->speed != USB_SPEED_HIGH) { |
| 929 | if (data[1] < 0x80) { |
| 930 | if (netif_msg_timer(pegasus)) |
| 931 | dev_info(&pegasus->intf->dev, "intr interval " |
| 932 | "changed from %ums to %ums\n", |
| 933 | data[1], 0x80); |
| 934 | data[1] = 0x80; |
| 935 | #ifdef PEGASUS_WRITE_EEPROM |
| 936 | write_eprom_word(pegasus, 4, *(__u16 *) data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 937 | #endif |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 938 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 939 | } |
| 940 | pegasus->intr_interval = data[1]; |
| 941 | } |
| 942 | |
| 943 | static void set_carrier(struct net_device *net) |
| 944 | { |
| 945 | pegasus_t *pegasus = netdev_priv(net); |
| 946 | u16 tmp; |
| 947 | |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 948 | if (!read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 949 | return; |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 950 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 951 | if (tmp & BMSR_LSTATUS) |
| 952 | netif_carrier_on(net); |
| 953 | else |
| 954 | netif_carrier_off(net); |
| 955 | } |
| 956 | |
| 957 | static void free_all_urbs(pegasus_t * pegasus) |
| 958 | { |
| 959 | usb_free_urb(pegasus->intr_urb); |
| 960 | usb_free_urb(pegasus->tx_urb); |
| 961 | usb_free_urb(pegasus->rx_urb); |
| 962 | usb_free_urb(pegasus->ctrl_urb); |
| 963 | } |
| 964 | |
| 965 | static void unlink_all_urbs(pegasus_t * pegasus) |
| 966 | { |
| 967 | usb_kill_urb(pegasus->intr_urb); |
| 968 | usb_kill_urb(pegasus->tx_urb); |
| 969 | usb_kill_urb(pegasus->rx_urb); |
| 970 | usb_kill_urb(pegasus->ctrl_urb); |
| 971 | } |
| 972 | |
| 973 | static int alloc_urbs(pegasus_t * pegasus) |
| 974 | { |
| 975 | pegasus->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 976 | if (!pegasus->ctrl_urb) { |
| 977 | return 0; |
| 978 | } |
| 979 | pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 980 | if (!pegasus->rx_urb) { |
| 981 | usb_free_urb(pegasus->ctrl_urb); |
| 982 | return 0; |
| 983 | } |
| 984 | pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 985 | if (!pegasus->tx_urb) { |
| 986 | usb_free_urb(pegasus->rx_urb); |
| 987 | usb_free_urb(pegasus->ctrl_urb); |
| 988 | return 0; |
| 989 | } |
| 990 | pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 991 | if (!pegasus->intr_urb) { |
| 992 | usb_free_urb(pegasus->tx_urb); |
| 993 | usb_free_urb(pegasus->rx_urb); |
| 994 | usb_free_urb(pegasus->ctrl_urb); |
| 995 | return 0; |
| 996 | } |
| 997 | |
| 998 | return 1; |
| 999 | } |
| 1000 | |
| 1001 | static int pegasus_open(struct net_device *net) |
| 1002 | { |
| 1003 | pegasus_t *pegasus = netdev_priv(net); |
| 1004 | int res; |
| 1005 | |
| 1006 | if (pegasus->rx_skb == NULL) |
| 1007 | pegasus->rx_skb = pull_skb(pegasus); |
| 1008 | /* |
| 1009 | ** Note: no point to free the pool. it is empty :-) |
| 1010 | */ |
| 1011 | if (!pegasus->rx_skb) |
| 1012 | return -ENOMEM; |
| 1013 | |
| 1014 | res = set_registers(pegasus, EthID, 6, net->dev_addr); |
| 1015 | |
| 1016 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, |
| 1017 | usb_rcvbulkpipe(pegasus->usb, 1), |
| 1018 | pegasus->rx_skb->data, PEGASUS_MTU + 8, |
| 1019 | read_bulk_callback, pegasus); |
| 1020 | if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) { |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame^] | 1021 | if (res == -ENODEV) |
| 1022 | netif_device_detach(pegasus->net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1023 | if (netif_msg_ifup(pegasus)) |
| 1024 | pr_debug("%s: failed rx_urb, %d", net->name, res); |
| 1025 | goto exit; |
| 1026 | } |
| 1027 | |
| 1028 | usb_fill_int_urb(pegasus->intr_urb, pegasus->usb, |
| 1029 | usb_rcvintpipe(pegasus->usb, 3), |
| 1030 | pegasus->intr_buff, sizeof (pegasus->intr_buff), |
| 1031 | intr_callback, pegasus, pegasus->intr_interval); |
| 1032 | if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) { |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame^] | 1033 | if (res == -ENODEV) |
| 1034 | netif_device_detach(pegasus->net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | if (netif_msg_ifup(pegasus)) |
| 1036 | pr_debug("%s: failed intr_urb, %d\n", net->name, res); |
| 1037 | usb_kill_urb(pegasus->rx_urb); |
| 1038 | goto exit; |
| 1039 | } |
| 1040 | if ((res = enable_net_traffic(net, pegasus->usb))) { |
| 1041 | if (netif_msg_ifup(pegasus)) |
| 1042 | pr_debug("%s: can't enable_net_traffic() - %d\n", |
| 1043 | net->name, res); |
| 1044 | res = -EIO; |
| 1045 | usb_kill_urb(pegasus->rx_urb); |
| 1046 | usb_kill_urb(pegasus->intr_urb); |
| 1047 | free_skb_pool(pegasus); |
| 1048 | goto exit; |
| 1049 | } |
| 1050 | set_carrier(net); |
| 1051 | netif_start_queue(net); |
| 1052 | if (netif_msg_ifup(pegasus)) |
| 1053 | pr_debug("%s: open\n", net->name); |
| 1054 | res = 0; |
| 1055 | exit: |
| 1056 | return res; |
| 1057 | } |
| 1058 | |
| 1059 | static int pegasus_close(struct net_device *net) |
| 1060 | { |
| 1061 | pegasus_t *pegasus = netdev_priv(net); |
| 1062 | |
| 1063 | netif_stop_queue(net); |
| 1064 | if (!(pegasus->flags & PEGASUS_UNPLUG)) |
| 1065 | disable_net_traffic(pegasus); |
| 1066 | tasklet_kill(&pegasus->rx_tl); |
| 1067 | unlink_all_urbs(pegasus); |
| 1068 | |
| 1069 | return 0; |
| 1070 | } |
| 1071 | |
| 1072 | static void pegasus_get_drvinfo(struct net_device *dev, |
| 1073 | struct ethtool_drvinfo *info) |
| 1074 | { |
| 1075 | pegasus_t *pegasus = netdev_priv(dev); |
| 1076 | strncpy(info->driver, driver_name, sizeof (info->driver) - 1); |
| 1077 | strncpy(info->version, DRIVER_VERSION, sizeof (info->version) - 1); |
| 1078 | usb_make_path(pegasus->usb, info->bus_info, sizeof (info->bus_info)); |
| 1079 | } |
| 1080 | |
| 1081 | /* also handles three patterns of some kind in hardware */ |
| 1082 | #define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY) |
| 1083 | |
| 1084 | static void |
| 1085 | pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 1086 | { |
| 1087 | pegasus_t *pegasus = netdev_priv(dev); |
| 1088 | |
| 1089 | wol->supported = WAKE_MAGIC | WAKE_PHY; |
| 1090 | wol->wolopts = pegasus->wolopts; |
| 1091 | } |
| 1092 | |
| 1093 | static int |
| 1094 | pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 1095 | { |
| 1096 | pegasus_t *pegasus = netdev_priv(dev); |
| 1097 | u8 reg78 = 0x04; |
| 1098 | |
| 1099 | if (wol->wolopts & ~WOL_SUPPORTED) |
| 1100 | return -EINVAL; |
| 1101 | |
| 1102 | if (wol->wolopts & WAKE_MAGIC) |
| 1103 | reg78 |= 0x80; |
| 1104 | if (wol->wolopts & WAKE_PHY) |
| 1105 | reg78 |= 0x40; |
| 1106 | /* FIXME this 0x10 bit still needs to get set in the chip... */ |
| 1107 | if (wol->wolopts) |
| 1108 | pegasus->eth_regs[0] |= 0x10; |
| 1109 | else |
| 1110 | pegasus->eth_regs[0] &= ~0x10; |
| 1111 | pegasus->wolopts = wol->wolopts; |
| 1112 | return set_register(pegasus, WakeupControl, reg78); |
| 1113 | } |
| 1114 | |
| 1115 | static inline void pegasus_reset_wol(struct net_device *dev) |
| 1116 | { |
| 1117 | struct ethtool_wolinfo wol; |
| 1118 | |
| 1119 | memset(&wol, 0, sizeof wol); |
| 1120 | (void) pegasus_set_wol(dev, &wol); |
| 1121 | } |
| 1122 | |
| 1123 | static int |
| 1124 | pegasus_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
| 1125 | { |
| 1126 | pegasus_t *pegasus; |
| 1127 | |
| 1128 | if (in_atomic()) |
| 1129 | return 0; |
| 1130 | |
| 1131 | pegasus = netdev_priv(dev); |
| 1132 | mii_ethtool_gset(&pegasus->mii, ecmd); |
| 1133 | |
| 1134 | return 0; |
| 1135 | } |
| 1136 | |
| 1137 | static int |
| 1138 | pegasus_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
| 1139 | { |
| 1140 | pegasus_t *pegasus = netdev_priv(dev); |
| 1141 | return mii_ethtool_sset(&pegasus->mii, ecmd); |
| 1142 | } |
| 1143 | |
| 1144 | static int pegasus_nway_reset(struct net_device *dev) |
| 1145 | { |
| 1146 | pegasus_t *pegasus = netdev_priv(dev); |
| 1147 | return mii_nway_restart(&pegasus->mii); |
| 1148 | } |
| 1149 | |
| 1150 | static u32 pegasus_get_link(struct net_device *dev) |
| 1151 | { |
| 1152 | pegasus_t *pegasus = netdev_priv(dev); |
| 1153 | return mii_link_ok(&pegasus->mii); |
| 1154 | } |
| 1155 | |
| 1156 | static u32 pegasus_get_msglevel(struct net_device *dev) |
| 1157 | { |
| 1158 | pegasus_t *pegasus = netdev_priv(dev); |
| 1159 | return pegasus->msg_enable; |
| 1160 | } |
| 1161 | |
| 1162 | static void pegasus_set_msglevel(struct net_device *dev, u32 v) |
| 1163 | { |
| 1164 | pegasus_t *pegasus = netdev_priv(dev); |
| 1165 | pegasus->msg_enable = v; |
| 1166 | } |
| 1167 | |
| 1168 | static struct ethtool_ops ops = { |
| 1169 | .get_drvinfo = pegasus_get_drvinfo, |
| 1170 | .get_settings = pegasus_get_settings, |
| 1171 | .set_settings = pegasus_set_settings, |
| 1172 | .nway_reset = pegasus_nway_reset, |
| 1173 | .get_link = pegasus_get_link, |
| 1174 | .get_msglevel = pegasus_get_msglevel, |
| 1175 | .set_msglevel = pegasus_set_msglevel, |
| 1176 | .get_wol = pegasus_get_wol, |
| 1177 | .set_wol = pegasus_set_wol, |
| 1178 | }; |
| 1179 | |
| 1180 | static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd) |
| 1181 | { |
| 1182 | __u16 *data = (__u16 *) & rq->ifr_ifru; |
| 1183 | pegasus_t *pegasus = netdev_priv(net); |
| 1184 | int res; |
| 1185 | |
| 1186 | switch (cmd) { |
| 1187 | case SIOCDEVPRIVATE: |
| 1188 | data[0] = pegasus->phy; |
| 1189 | case SIOCDEVPRIVATE + 1: |
| 1190 | read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]); |
| 1191 | res = 0; |
| 1192 | break; |
| 1193 | case SIOCDEVPRIVATE + 2: |
| 1194 | if (!capable(CAP_NET_ADMIN)) |
| 1195 | return -EPERM; |
| 1196 | write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, data[2]); |
| 1197 | res = 0; |
| 1198 | break; |
| 1199 | default: |
| 1200 | res = -EOPNOTSUPP; |
| 1201 | } |
| 1202 | return res; |
| 1203 | } |
| 1204 | |
| 1205 | static void pegasus_set_multicast(struct net_device *net) |
| 1206 | { |
| 1207 | pegasus_t *pegasus = netdev_priv(net); |
| 1208 | |
| 1209 | if (net->flags & IFF_PROMISC) { |
| 1210 | pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS; |
| 1211 | if (netif_msg_link(pegasus)) |
| 1212 | pr_info("%s: Promiscuous mode enabled.\n", net->name); |
YOSHIFUJI Hideaki | ae0a97b | 2005-05-25 16:07:04 +0900 | [diff] [blame] | 1213 | } else if (net->mc_count || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1214 | (net->flags & IFF_ALLMULTI)) { |
| 1215 | pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST; |
| 1216 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; |
| 1217 | if (netif_msg_link(pegasus)) |
| 1218 | pr_info("%s: set allmulti\n", net->name); |
| 1219 | } else { |
| 1220 | pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST; |
| 1221 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; |
| 1222 | } |
| 1223 | |
| 1224 | pegasus->flags |= ETH_REGS_CHANGE; |
| 1225 | ctrl_callback(pegasus->ctrl_urb, NULL); |
| 1226 | } |
| 1227 | |
| 1228 | static __u8 mii_phy_probe(pegasus_t * pegasus) |
| 1229 | { |
| 1230 | int i; |
| 1231 | __u16 tmp; |
| 1232 | |
| 1233 | for (i = 0; i < 32; i++) { |
| 1234 | read_mii_word(pegasus, i, MII_BMSR, &tmp); |
| 1235 | if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0) |
| 1236 | continue; |
| 1237 | else |
| 1238 | return i; |
| 1239 | } |
| 1240 | |
| 1241 | return 0xff; |
| 1242 | } |
| 1243 | |
| 1244 | static inline void setup_pegasus_II(pegasus_t * pegasus) |
| 1245 | { |
| 1246 | __u8 data = 0xa5; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1247 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1248 | set_register(pegasus, Reg1d, 0); |
| 1249 | set_register(pegasus, Reg7b, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1250 | mdelay(100); |
| 1251 | if ((pegasus->features & HAS_HOME_PNA) && mii_mode) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1252 | set_register(pegasus, Reg7b, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1253 | else |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1254 | set_register(pegasus, Reg7b, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1255 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1256 | set_register(pegasus, 0x83, data); |
| 1257 | get_registers(pegasus, 0x83, 1, &data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1258 | |
| 1259 | if (data == 0xa5) { |
| 1260 | pegasus->chip = 0x8513; |
| 1261 | } else { |
| 1262 | pegasus->chip = 0; |
| 1263 | } |
| 1264 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1265 | set_register(pegasus, 0x80, 0xc0); |
| 1266 | set_register(pegasus, 0x83, 0xff); |
| 1267 | set_register(pegasus, 0x84, 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1268 | |
| 1269 | if (pegasus->features & HAS_HOME_PNA && mii_mode) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1270 | set_register(pegasus, Reg81, 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1271 | else |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1272 | set_register(pegasus, Reg81, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1273 | } |
| 1274 | |
| 1275 | |
| 1276 | static struct workqueue_struct *pegasus_workqueue = NULL; |
| 1277 | #define CARRIER_CHECK_DELAY (2 * HZ) |
| 1278 | |
| 1279 | static void check_carrier(void *data) |
| 1280 | { |
| 1281 | pegasus_t *pegasus = data; |
| 1282 | set_carrier(pegasus->net); |
| 1283 | if (!(pegasus->flags & PEGASUS_UNPLUG)) { |
| 1284 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, |
| 1285 | CARRIER_CHECK_DELAY); |
| 1286 | } |
| 1287 | } |
| 1288 | |
| 1289 | static int pegasus_probe(struct usb_interface *intf, |
| 1290 | const struct usb_device_id *id) |
| 1291 | { |
| 1292 | struct usb_device *dev = interface_to_usbdev(intf); |
| 1293 | struct net_device *net; |
| 1294 | pegasus_t *pegasus; |
| 1295 | int dev_index = id - pegasus_ids; |
| 1296 | int res = -ENOMEM; |
| 1297 | |
| 1298 | usb_get_dev(dev); |
| 1299 | net = alloc_etherdev(sizeof(struct pegasus)); |
| 1300 | if (!net) { |
| 1301 | dev_err(&intf->dev, "can't allocate %s\n", "device"); |
| 1302 | goto out; |
| 1303 | } |
| 1304 | |
| 1305 | pegasus = netdev_priv(net); |
| 1306 | memset(pegasus, 0, sizeof (struct pegasus)); |
| 1307 | pegasus->dev_index = dev_index; |
| 1308 | init_waitqueue_head(&pegasus->ctrl_wait); |
| 1309 | |
| 1310 | if (!alloc_urbs(pegasus)) { |
| 1311 | dev_err(&intf->dev, "can't allocate %s\n", "urbs"); |
| 1312 | goto out1; |
| 1313 | } |
| 1314 | |
| 1315 | tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus); |
| 1316 | |
| 1317 | INIT_WORK(&pegasus->carrier_check, check_carrier, pegasus); |
| 1318 | |
| 1319 | pegasus->intf = intf; |
| 1320 | pegasus->usb = dev; |
| 1321 | pegasus->net = net; |
| 1322 | SET_MODULE_OWNER(net); |
| 1323 | net->open = pegasus_open; |
| 1324 | net->stop = pegasus_close; |
| 1325 | net->watchdog_timeo = PEGASUS_TX_TIMEOUT; |
| 1326 | net->tx_timeout = pegasus_tx_timeout; |
| 1327 | net->do_ioctl = pegasus_ioctl; |
| 1328 | net->hard_start_xmit = pegasus_start_xmit; |
| 1329 | net->set_multicast_list = pegasus_set_multicast; |
| 1330 | net->get_stats = pegasus_netdev_stats; |
| 1331 | SET_ETHTOOL_OPS(net, &ops); |
| 1332 | pegasus->mii.dev = net; |
| 1333 | pegasus->mii.mdio_read = mdio_read; |
| 1334 | pegasus->mii.mdio_write = mdio_write; |
| 1335 | pegasus->mii.phy_id_mask = 0x1f; |
| 1336 | pegasus->mii.reg_num_mask = 0x1f; |
| 1337 | spin_lock_init(&pegasus->rx_pool_lock); |
| 1338 | pegasus->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV |
| 1339 | | NETIF_MSG_PROBE | NETIF_MSG_LINK); |
| 1340 | |
| 1341 | pegasus->features = usb_dev_id[dev_index].private; |
| 1342 | get_interrupt_interval(pegasus); |
| 1343 | if (reset_mac(pegasus)) { |
| 1344 | dev_err(&intf->dev, "can't reset MAC\n"); |
| 1345 | res = -EIO; |
| 1346 | goto out2; |
| 1347 | } |
| 1348 | set_ethernet_addr(pegasus); |
| 1349 | fill_skb_pool(pegasus); |
| 1350 | if (pegasus->features & PEGASUS_II) { |
| 1351 | dev_info(&intf->dev, "setup Pegasus II specific registers\n"); |
| 1352 | setup_pegasus_II(pegasus); |
| 1353 | } |
| 1354 | pegasus->phy = mii_phy_probe(pegasus); |
| 1355 | if (pegasus->phy == 0xff) { |
| 1356 | dev_warn(&intf->dev, "can't locate MII phy, using default\n"); |
| 1357 | pegasus->phy = 1; |
| 1358 | } |
| 1359 | pegasus->mii.phy_id = pegasus->phy; |
| 1360 | usb_set_intfdata(intf, pegasus); |
| 1361 | SET_NETDEV_DEV(net, &intf->dev); |
| 1362 | pegasus_reset_wol(net); |
| 1363 | res = register_netdev(net); |
| 1364 | if (res) |
| 1365 | goto out3; |
| 1366 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, |
| 1367 | CARRIER_CHECK_DELAY); |
| 1368 | |
| 1369 | dev_info(&intf->dev, "%s, %s, %02x:%02x:%02x:%02x:%02x:%02x\n", |
| 1370 | net->name, |
| 1371 | usb_dev_id[dev_index].name, |
| 1372 | net->dev_addr [0], net->dev_addr [1], |
| 1373 | net->dev_addr [2], net->dev_addr [3], |
| 1374 | net->dev_addr [4], net->dev_addr [5]); |
| 1375 | return 0; |
| 1376 | |
| 1377 | out3: |
| 1378 | usb_set_intfdata(intf, NULL); |
| 1379 | free_skb_pool(pegasus); |
| 1380 | out2: |
| 1381 | free_all_urbs(pegasus); |
| 1382 | out1: |
| 1383 | free_netdev(net); |
| 1384 | out: |
| 1385 | usb_put_dev(dev); |
| 1386 | return res; |
| 1387 | } |
| 1388 | |
| 1389 | static void pegasus_disconnect(struct usb_interface *intf) |
| 1390 | { |
| 1391 | struct pegasus *pegasus = usb_get_intfdata(intf); |
| 1392 | |
| 1393 | usb_set_intfdata(intf, NULL); |
| 1394 | if (!pegasus) { |
| 1395 | dev_dbg(&intf->dev, "unregistering non-bound device?\n"); |
| 1396 | return; |
| 1397 | } |
| 1398 | |
| 1399 | pegasus->flags |= PEGASUS_UNPLUG; |
| 1400 | cancel_delayed_work(&pegasus->carrier_check); |
| 1401 | unregister_netdev(pegasus->net); |
| 1402 | usb_put_dev(interface_to_usbdev(intf)); |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 1403 | unlink_all_urbs(pegasus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1404 | free_all_urbs(pegasus); |
| 1405 | free_skb_pool(pegasus); |
| 1406 | if (pegasus->rx_skb) |
| 1407 | dev_kfree_skb(pegasus->rx_skb); |
| 1408 | free_netdev(pegasus->net); |
| 1409 | } |
| 1410 | |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1411 | static int pegasus_suspend (struct usb_interface *intf, pm_message_t message) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1412 | { |
| 1413 | struct pegasus *pegasus = usb_get_intfdata(intf); |
| 1414 | |
| 1415 | netif_device_detach (pegasus->net); |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 1416 | cancel_delayed_work(&pegasus->carrier_check); |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1417 | if (netif_running(pegasus->net)) { |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1418 | usb_kill_urb(pegasus->rx_urb); |
| 1419 | usb_kill_urb(pegasus->intr_urb); |
| 1420 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1421 | return 0; |
| 1422 | } |
| 1423 | |
| 1424 | static int pegasus_resume (struct usb_interface *intf) |
| 1425 | { |
| 1426 | struct pegasus *pegasus = usb_get_intfdata(intf); |
| 1427 | |
| 1428 | netif_device_attach (pegasus->net); |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1429 | if (netif_running(pegasus->net)) { |
| 1430 | pegasus->rx_urb->status = 0; |
| 1431 | pegasus->rx_urb->actual_length = 0; |
Al Viro | 9727d04 | 2005-04-26 07:43:41 -0700 | [diff] [blame] | 1432 | read_bulk_callback(pegasus->rx_urb, NULL); |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1433 | |
| 1434 | pegasus->intr_urb->status = 0; |
| 1435 | pegasus->intr_urb->actual_length = 0; |
Al Viro | 9727d04 | 2005-04-26 07:43:41 -0700 | [diff] [blame] | 1436 | intr_callback(pegasus->intr_urb, NULL); |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1437 | } |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 1438 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, |
| 1439 | CARRIER_CHECK_DELAY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1440 | return 0; |
| 1441 | } |
| 1442 | |
| 1443 | static struct usb_driver pegasus_driver = { |
| 1444 | .name = driver_name, |
| 1445 | .probe = pegasus_probe, |
| 1446 | .disconnect = pegasus_disconnect, |
| 1447 | .id_table = pegasus_ids, |
| 1448 | .suspend = pegasus_suspend, |
| 1449 | .resume = pegasus_resume, |
| 1450 | }; |
| 1451 | |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 1452 | static void parse_id(char *id) |
| 1453 | { |
| 1454 | unsigned int vendor_id=0, device_id=0, flags=0, i=0; |
| 1455 | char *token, *name=NULL; |
| 1456 | |
| 1457 | if ((token = strsep(&id, ":")) != NULL) |
| 1458 | name = token; |
| 1459 | /* name now points to a null terminated string*/ |
| 1460 | if ((token = strsep(&id, ":")) != NULL) |
| 1461 | vendor_id = simple_strtoul(token, NULL, 16); |
| 1462 | if ((token = strsep(&id, ":")) != NULL) |
| 1463 | device_id = simple_strtoul(token, NULL, 16); |
| 1464 | flags = simple_strtoul(id, NULL, 16); |
| 1465 | pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n", |
| 1466 | driver_name, name, vendor_id, device_id, flags); |
| 1467 | |
| 1468 | if (vendor_id > 0x10000 || vendor_id == 0) |
| 1469 | return; |
| 1470 | if (device_id > 0x10000 || device_id == 0) |
| 1471 | return; |
| 1472 | |
| 1473 | for (i=0; usb_dev_id[i].name; i++); |
| 1474 | usb_dev_id[i].name = name; |
| 1475 | usb_dev_id[i].vendor = vendor_id; |
| 1476 | usb_dev_id[i].device = device_id; |
| 1477 | usb_dev_id[i].private = flags; |
| 1478 | pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; |
| 1479 | pegasus_ids[i].idVendor = vendor_id; |
| 1480 | pegasus_ids[i].idProduct = device_id; |
| 1481 | } |
| 1482 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1483 | static int __init pegasus_init(void) |
| 1484 | { |
| 1485 | pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION); |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 1486 | if (devid) |
| 1487 | parse_id(devid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1488 | pegasus_workqueue = create_singlethread_workqueue("pegasus"); |
| 1489 | if (!pegasus_workqueue) |
| 1490 | return -ENOMEM; |
| 1491 | return usb_register(&pegasus_driver); |
| 1492 | } |
| 1493 | |
| 1494 | static void __exit pegasus_exit(void) |
| 1495 | { |
| 1496 | destroy_workqueue(pegasus_workqueue); |
| 1497 | usb_deregister(&pegasus_driver); |
| 1498 | } |
| 1499 | |
| 1500 | module_init(pegasus_init); |
| 1501 | module_exit(pegasus_exit); |