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 | 37cf347 | 2006-09-27 14:25:37 -0700 | [diff] [blame] | 48 | #define DRIVER_VERSION "v0.6.14 (2006/09/27)" |
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); |
Oliver Neukum | 8cb8957 | 2009-01-08 11:22:25 -0800 | [diff] [blame] | 96 | static const struct net_device_ops pegasus_netdev_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | |
| 98 | static int update_eth_regs_async(pegasus_t *); |
| 99 | /* Aargh!!! I _really_ hate such tweaks */ |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 100 | static void ctrl_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | { |
| 102 | pegasus_t *pegasus = urb->context; |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 103 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | |
| 105 | if (!pegasus) |
| 106 | return; |
| 107 | |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 108 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | case 0: |
| 110 | if (pegasus->flags & ETH_REGS_CHANGE) { |
| 111 | pegasus->flags &= ~ETH_REGS_CHANGE; |
| 112 | pegasus->flags |= ETH_REGS_CHANGED; |
| 113 | update_eth_regs_async(pegasus); |
| 114 | return; |
| 115 | } |
| 116 | break; |
| 117 | case -EINPROGRESS: |
| 118 | return; |
| 119 | case -ENOENT: |
| 120 | break; |
| 121 | default: |
David Brownell | e000ea1 | 2008-09-02 11:34:24 -0700 | [diff] [blame] | 122 | if (netif_msg_drv(pegasus) && printk_ratelimit()) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 123 | dev_dbg(&pegasus->intf->dev, "%s, status %d\n", |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 124 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | } |
| 126 | pegasus->flags &= ~ETH_REGS_CHANGED; |
| 127 | wake_up(&pegasus->ctrl_wait); |
| 128 | } |
| 129 | |
| 130 | static int get_registers(pegasus_t * pegasus, __u16 indx, __u16 size, |
| 131 | void *data) |
| 132 | { |
| 133 | int ret; |
| 134 | char *buffer; |
| 135 | DECLARE_WAITQUEUE(wait, current); |
| 136 | |
| 137 | buffer = kmalloc(size, GFP_KERNEL); |
| 138 | if (!buffer) { |
| 139 | if (netif_msg_drv(pegasus)) |
| 140 | dev_warn(&pegasus->intf->dev, "out of memory in %s\n", |
Harvey Harrison | b39d66a | 2008-08-20 16:52:04 -0700 | [diff] [blame] | 141 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | return -ENOMEM; |
| 143 | } |
| 144 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 145 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 146 | while (pegasus->flags & ETH_REGS_CHANGED) |
| 147 | schedule(); |
| 148 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 149 | set_current_state(TASK_RUNNING); |
| 150 | |
| 151 | pegasus->dr.bRequestType = PEGASUS_REQT_READ; |
| 152 | pegasus->dr.bRequest = PEGASUS_REQ_GET_REGS; |
| 153 | pegasus->dr.wValue = cpu_to_le16(0); |
Harvey Harrison | da2bbdc | 2008-10-29 14:25:51 -0700 | [diff] [blame] | 154 | pegasus->dr.wIndex = cpu_to_le16(indx); |
| 155 | pegasus->dr.wLength = cpu_to_le16(size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | pegasus->ctrl_urb->transfer_buffer_length = size; |
| 157 | |
| 158 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, |
| 159 | usb_rcvctrlpipe(pegasus->usb, 0), |
| 160 | (char *) &pegasus->dr, |
| 161 | buffer, size, ctrl_callback, pegasus); |
| 162 | |
| 163 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 164 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 165 | |
| 166 | /* using ATOMIC, we'd never wake up if we slept */ |
| 167 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { |
Oliver Neukum | 10c8211 | 2006-11-23 15:40:17 +0100 | [diff] [blame] | 168 | set_current_state(TASK_RUNNING); |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 169 | if (ret == -ENODEV) |
| 170 | netif_device_detach(pegasus->net); |
David Brownell | e000ea1 | 2008-09-02 11:34:24 -0700 | [diff] [blame] | 171 | if (netif_msg_drv(pegasus) && printk_ratelimit()) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | dev_err(&pegasus->intf->dev, "%s, status %d\n", |
Harvey Harrison | 653c031 | 2008-10-20 16:00:08 -0700 | [diff] [blame] | 173 | __func__, ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | goto out; |
| 175 | } |
| 176 | |
| 177 | schedule(); |
| 178 | out: |
| 179 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 180 | memcpy(data, buffer, size); |
| 181 | kfree(buffer); |
| 182 | |
| 183 | return ret; |
| 184 | } |
| 185 | |
| 186 | static int set_registers(pegasus_t * pegasus, __u16 indx, __u16 size, |
| 187 | void *data) |
| 188 | { |
| 189 | int ret; |
| 190 | char *buffer; |
| 191 | DECLARE_WAITQUEUE(wait, current); |
| 192 | |
| 193 | buffer = kmalloc(size, GFP_KERNEL); |
| 194 | if (!buffer) { |
| 195 | if (netif_msg_drv(pegasus)) |
| 196 | dev_warn(&pegasus->intf->dev, "out of memory in %s\n", |
Harvey Harrison | 653c031 | 2008-10-20 16:00:08 -0700 | [diff] [blame] | 197 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | return -ENOMEM; |
| 199 | } |
| 200 | memcpy(buffer, data, size); |
| 201 | |
| 202 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 203 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 204 | while (pegasus->flags & ETH_REGS_CHANGED) |
| 205 | schedule(); |
| 206 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 207 | set_current_state(TASK_RUNNING); |
| 208 | |
| 209 | pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; |
| 210 | pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS; |
| 211 | pegasus->dr.wValue = cpu_to_le16(0); |
Harvey Harrison | da2bbdc | 2008-10-29 14:25:51 -0700 | [diff] [blame] | 212 | pegasus->dr.wIndex = cpu_to_le16(indx); |
| 213 | pegasus->dr.wLength = cpu_to_le16(size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | pegasus->ctrl_urb->transfer_buffer_length = size; |
| 215 | |
| 216 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, |
| 217 | usb_sndctrlpipe(pegasus->usb, 0), |
| 218 | (char *) &pegasus->dr, |
| 219 | buffer, size, ctrl_callback, pegasus); |
| 220 | |
| 221 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 222 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 223 | |
| 224 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 225 | if (ret == -ENODEV) |
| 226 | netif_device_detach(pegasus->net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | if (netif_msg_drv(pegasus)) |
| 228 | dev_err(&pegasus->intf->dev, "%s, status %d\n", |
Harvey Harrison | b39d66a | 2008-08-20 16:52:04 -0700 | [diff] [blame] | 229 | __func__, ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | goto out; |
| 231 | } |
| 232 | |
| 233 | schedule(); |
| 234 | out: |
| 235 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 236 | kfree(buffer); |
| 237 | |
| 238 | return ret; |
| 239 | } |
| 240 | |
| 241 | static int set_register(pegasus_t * pegasus, __u16 indx, __u8 data) |
| 242 | { |
| 243 | int ret; |
| 244 | char *tmp; |
| 245 | DECLARE_WAITQUEUE(wait, current); |
| 246 | |
| 247 | tmp = kmalloc(1, GFP_KERNEL); |
| 248 | if (!tmp) { |
| 249 | if (netif_msg_drv(pegasus)) |
| 250 | dev_warn(&pegasus->intf->dev, "out of memory in %s\n", |
Harvey Harrison | b39d66a | 2008-08-20 16:52:04 -0700 | [diff] [blame] | 251 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | return -ENOMEM; |
| 253 | } |
| 254 | memcpy(tmp, &data, 1); |
| 255 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 256 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 257 | while (pegasus->flags & ETH_REGS_CHANGED) |
| 258 | schedule(); |
| 259 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 260 | set_current_state(TASK_RUNNING); |
| 261 | |
| 262 | pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; |
| 263 | pegasus->dr.bRequest = PEGASUS_REQ_SET_REG; |
| 264 | pegasus->dr.wValue = cpu_to_le16(data); |
Harvey Harrison | da2bbdc | 2008-10-29 14:25:51 -0700 | [diff] [blame] | 265 | pegasus->dr.wIndex = cpu_to_le16(indx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | pegasus->dr.wLength = cpu_to_le16(1); |
| 267 | pegasus->ctrl_urb->transfer_buffer_length = 1; |
| 268 | |
| 269 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, |
| 270 | usb_sndctrlpipe(pegasus->usb, 0), |
| 271 | (char *) &pegasus->dr, |
Petko Manolov | 016534c | 2006-03-30 09:59:22 +0300 | [diff] [blame] | 272 | tmp, 1, ctrl_callback, pegasus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | |
| 274 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 275 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 276 | |
| 277 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 278 | if (ret == -ENODEV) |
| 279 | netif_device_detach(pegasus->net); |
David Brownell | e000ea1 | 2008-09-02 11:34:24 -0700 | [diff] [blame] | 280 | if (netif_msg_drv(pegasus) && printk_ratelimit()) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | dev_err(&pegasus->intf->dev, "%s, status %d\n", |
Harvey Harrison | b39d66a | 2008-08-20 16:52:04 -0700 | [diff] [blame] | 282 | __func__, ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | goto out; |
| 284 | } |
| 285 | |
| 286 | schedule(); |
| 287 | out: |
| 288 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 289 | kfree(tmp); |
| 290 | |
| 291 | return ret; |
| 292 | } |
| 293 | |
| 294 | static int update_eth_regs_async(pegasus_t * pegasus) |
| 295 | { |
| 296 | int ret; |
| 297 | |
| 298 | pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; |
| 299 | pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS; |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 300 | pegasus->dr.wValue = cpu_to_le16(0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | pegasus->dr.wIndex = cpu_to_le16(EthCtrl0); |
| 302 | pegasus->dr.wLength = cpu_to_le16(3); |
| 303 | pegasus->ctrl_urb->transfer_buffer_length = 3; |
| 304 | |
| 305 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, |
| 306 | usb_sndctrlpipe(pegasus->usb, 0), |
| 307 | (char *) &pegasus->dr, |
| 308 | pegasus->eth_regs, 3, ctrl_callback, pegasus); |
| 309 | |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 310 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { |
| 311 | if (ret == -ENODEV) |
| 312 | netif_device_detach(pegasus->net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | if (netif_msg_drv(pegasus)) |
| 314 | dev_err(&pegasus->intf->dev, "%s, status %d\n", |
Harvey Harrison | b39d66a | 2008-08-20 16:52:04 -0700 | [diff] [blame] | 315 | __func__, ret); |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 316 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | |
| 318 | return ret; |
| 319 | } |
| 320 | |
Dan Williams | c43c49b | 2007-04-24 10:20:06 -0400 | [diff] [blame] | 321 | /* Returns 0 on success, error on failure */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | static int read_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 * regd) |
| 323 | { |
| 324 | int i; |
| 325 | __u8 data[4] = { phy, 0, 0, indx }; |
| 326 | __le16 regdi; |
| 327 | int ret; |
| 328 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 329 | set_register(pegasus, PhyCtrl, 0); |
| 330 | set_registers(pegasus, PhyAddr, sizeof (data), data); |
| 331 | set_register(pegasus, PhyCtrl, (indx | PHY_READ)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | for (i = 0; i < REG_TIMEOUT; i++) { |
| 333 | ret = get_registers(pegasus, PhyCtrl, 1, data); |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 334 | if (ret == -ESHUTDOWN) |
| 335 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | if (data[0] & PHY_DONE) |
| 337 | break; |
| 338 | } |
| 339 | if (i < REG_TIMEOUT) { |
| 340 | ret = get_registers(pegasus, PhyData, 2, ®di); |
| 341 | *regd = le16_to_cpu(regdi); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 342 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | } |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 344 | fail: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | if (netif_msg_drv(pegasus)) |
Harvey Harrison | b39d66a | 2008-08-20 16:52:04 -0700 | [diff] [blame] | 346 | dev_warn(&pegasus->intf->dev, "%s failed\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 348 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | } |
| 350 | |
| 351 | static int mdio_read(struct net_device *dev, int phy_id, int loc) |
| 352 | { |
| 353 | pegasus_t *pegasus = (pegasus_t *) netdev_priv(dev); |
| 354 | u16 res; |
| 355 | |
| 356 | read_mii_word(pegasus, phy_id, loc, &res); |
| 357 | return (int)res; |
| 358 | } |
| 359 | |
| 360 | static int write_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 regd) |
| 361 | { |
| 362 | int i; |
| 363 | __u8 data[4] = { phy, 0, 0, indx }; |
| 364 | int ret; |
| 365 | |
| 366 | data[1] = (u8) regd; |
| 367 | data[2] = (u8) (regd >> 8); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 368 | set_register(pegasus, PhyCtrl, 0); |
| 369 | set_registers(pegasus, PhyAddr, sizeof(data), data); |
| 370 | set_register(pegasus, PhyCtrl, (indx | PHY_WRITE)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | for (i = 0; i < REG_TIMEOUT; i++) { |
| 372 | ret = get_registers(pegasus, PhyCtrl, 1, data); |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 373 | if (ret == -ESHUTDOWN) |
| 374 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | if (data[0] & PHY_DONE) |
| 376 | break; |
| 377 | } |
| 378 | if (i < REG_TIMEOUT) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 379 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 381 | fail: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | if (netif_msg_drv(pegasus)) |
Harvey Harrison | b39d66a | 2008-08-20 16:52:04 -0700 | [diff] [blame] | 383 | dev_warn(&pegasus->intf->dev, "%s failed\n", __func__); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 384 | return -ETIMEDOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | } |
| 386 | |
| 387 | static void mdio_write(struct net_device *dev, int phy_id, int loc, int val) |
| 388 | { |
| 389 | pegasus_t *pegasus = (pegasus_t *) netdev_priv(dev); |
| 390 | |
| 391 | write_mii_word(pegasus, phy_id, loc, val); |
| 392 | } |
| 393 | |
| 394 | static int read_eprom_word(pegasus_t * pegasus, __u8 index, __u16 * retdata) |
| 395 | { |
| 396 | int i; |
| 397 | __u8 tmp; |
| 398 | __le16 retdatai; |
| 399 | int ret; |
| 400 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 401 | set_register(pegasus, EpromCtrl, 0); |
| 402 | set_register(pegasus, EpromOffset, index); |
| 403 | set_register(pegasus, EpromCtrl, EPROM_READ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | |
| 405 | for (i = 0; i < REG_TIMEOUT; i++) { |
| 406 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); |
| 407 | if (tmp & EPROM_DONE) |
| 408 | break; |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 409 | if (ret == -ESHUTDOWN) |
| 410 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | } |
| 412 | if (i < REG_TIMEOUT) { |
| 413 | ret = get_registers(pegasus, EpromData, 2, &retdatai); |
| 414 | *retdata = le16_to_cpu(retdatai); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 415 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | } |
| 417 | |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 418 | fail: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | if (netif_msg_drv(pegasus)) |
Harvey Harrison | b39d66a | 2008-08-20 16:52:04 -0700 | [diff] [blame] | 420 | dev_warn(&pegasus->intf->dev, "%s failed\n", __func__); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 421 | return -ETIMEDOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | } |
| 423 | |
| 424 | #ifdef PEGASUS_WRITE_EEPROM |
| 425 | static inline void enable_eprom_write(pegasus_t * pegasus) |
| 426 | { |
| 427 | __u8 tmp; |
| 428 | int ret; |
| 429 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 430 | get_registers(pegasus, EthCtrl2, 1, &tmp); |
| 431 | set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | } |
| 433 | |
| 434 | static inline void disable_eprom_write(pegasus_t * pegasus) |
| 435 | { |
| 436 | __u8 tmp; |
| 437 | int ret; |
| 438 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 439 | get_registers(pegasus, EthCtrl2, 1, &tmp); |
| 440 | set_register(pegasus, EpromCtrl, 0); |
| 441 | set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | } |
| 443 | |
| 444 | static int write_eprom_word(pegasus_t * pegasus, __u8 index, __u16 data) |
| 445 | { |
| 446 | int i; |
| 447 | __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE }; |
| 448 | int ret; |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 449 | __le16 le_data = cpu_to_le16(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 451 | set_registers(pegasus, EpromOffset, 4, d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | enable_eprom_write(pegasus); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 453 | set_register(pegasus, EpromOffset, index); |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 454 | set_registers(pegasus, EpromData, 2, &le_data); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 455 | set_register(pegasus, EpromCtrl, EPROM_WRITE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | |
| 457 | for (i = 0; i < REG_TIMEOUT; i++) { |
| 458 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 459 | if (ret == -ESHUTDOWN) |
| 460 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | if (tmp & EPROM_DONE) |
| 462 | break; |
| 463 | } |
| 464 | disable_eprom_write(pegasus); |
| 465 | if (i < REG_TIMEOUT) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 466 | return ret; |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 467 | fail: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 468 | if (netif_msg_drv(pegasus)) |
Harvey Harrison | b39d66a | 2008-08-20 16:52:04 -0700 | [diff] [blame] | 469 | dev_warn(&pegasus->intf->dev, "%s failed\n", __func__); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 470 | return -ETIMEDOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | } |
| 472 | #endif /* PEGASUS_WRITE_EEPROM */ |
| 473 | |
| 474 | static inline void get_node_id(pegasus_t * pegasus, __u8 * id) |
| 475 | { |
| 476 | int i; |
| 477 | __u16 w16; |
| 478 | |
| 479 | for (i = 0; i < 3; i++) { |
| 480 | read_eprom_word(pegasus, i, &w16); |
Harvey Harrison | da2bbdc | 2008-10-29 14:25:51 -0700 | [diff] [blame] | 481 | ((__le16 *) id)[i] = cpu_to_le16(w16); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | } |
| 483 | } |
| 484 | |
| 485 | static void set_ethernet_addr(pegasus_t * pegasus) |
| 486 | { |
| 487 | __u8 node_id[6]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | |
Petko Manolov | 37cf347 | 2006-09-27 14:25:37 -0700 | [diff] [blame] | 489 | if (pegasus->features & PEGASUS_II) { |
| 490 | get_registers(pegasus, 0x10, sizeof(node_id), node_id); |
| 491 | } else { |
| 492 | get_node_id(pegasus, node_id); |
| 493 | set_registers(pegasus, EthID, sizeof (node_id), node_id); |
| 494 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | memcpy(pegasus->net->dev_addr, node_id, sizeof (node_id)); |
| 496 | } |
| 497 | |
| 498 | static inline int reset_mac(pegasus_t * pegasus) |
| 499 | { |
| 500 | __u8 data = 0x8; |
| 501 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 503 | set_register(pegasus, EthCtrl1, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | for (i = 0; i < REG_TIMEOUT; i++) { |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 505 | get_registers(pegasus, EthCtrl1, 1, &data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | if (~data & 0x08) { |
| 507 | if (loopback & 1) |
| 508 | break; |
| 509 | if (mii_mode && (pegasus->features & HAS_HOME_PNA)) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 510 | set_register(pegasus, Gpio1, 0x34); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | else |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 512 | set_register(pegasus, Gpio1, 0x26); |
| 513 | set_register(pegasus, Gpio0, pegasus->features); |
| 514 | set_register(pegasus, Gpio0, DEFAULT_GPIO_SET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | break; |
| 516 | } |
| 517 | } |
| 518 | if (i == REG_TIMEOUT) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 519 | return -ETIMEDOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | |
| 521 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || |
| 522 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 523 | set_register(pegasus, Gpio0, 0x24); |
| 524 | set_register(pegasus, Gpio0, 0x26); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | } |
| 526 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) { |
| 527 | __u16 auxmode; |
| 528 | read_mii_word(pegasus, 3, 0x1b, &auxmode); |
| 529 | write_mii_word(pegasus, 3, 0x1b, auxmode | 4); |
| 530 | } |
| 531 | |
| 532 | return 0; |
| 533 | } |
| 534 | |
| 535 | static int enable_net_traffic(struct net_device *dev, struct usb_device *usb) |
| 536 | { |
| 537 | __u16 linkpart; |
| 538 | __u8 data[4]; |
| 539 | pegasus_t *pegasus = netdev_priv(dev); |
| 540 | int ret; |
| 541 | |
| 542 | read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart); |
| 543 | data[0] = 0xc9; |
| 544 | data[1] = 0; |
| 545 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL)) |
| 546 | data[1] |= 0x20; /* set full duplex */ |
| 547 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF)) |
| 548 | data[1] |= 0x10; /* set 100 Mbps */ |
| 549 | if (mii_mode) |
| 550 | data[1] = 0; |
| 551 | data[2] = (loopback & 1) ? 0x09 : 0x01; |
| 552 | |
| 553 | memcpy(pegasus->eth_regs, data, sizeof (data)); |
| 554 | ret = set_registers(pegasus, EthCtrl0, 3, data); |
| 555 | |
| 556 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || |
Malte Doersam | efafe6f | 2006-01-28 17:48:33 +0100 | [diff] [blame] | 557 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { |
| 559 | u16 auxmode; |
| 560 | read_mii_word(pegasus, 0, 0x1b, &auxmode); |
| 561 | write_mii_word(pegasus, 0, 0x1b, auxmode | 4); |
| 562 | } |
| 563 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 564 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | } |
| 566 | |
| 567 | static void fill_skb_pool(pegasus_t * pegasus) |
| 568 | { |
| 569 | int i; |
| 570 | |
| 571 | for (i = 0; i < RX_SKBS; i++) { |
| 572 | if (pegasus->rx_pool[i]) |
| 573 | continue; |
| 574 | pegasus->rx_pool[i] = dev_alloc_skb(PEGASUS_MTU + 2); |
| 575 | /* |
| 576 | ** we give up if the allocation fail. the tasklet will be |
| 577 | ** rescheduled again anyway... |
| 578 | */ |
| 579 | if (pegasus->rx_pool[i] == NULL) |
| 580 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | skb_reserve(pegasus->rx_pool[i], 2); |
| 582 | } |
| 583 | } |
| 584 | |
| 585 | static void free_skb_pool(pegasus_t * pegasus) |
| 586 | { |
| 587 | int i; |
| 588 | |
| 589 | for (i = 0; i < RX_SKBS; i++) { |
| 590 | if (pegasus->rx_pool[i]) { |
| 591 | dev_kfree_skb(pegasus->rx_pool[i]); |
| 592 | pegasus->rx_pool[i] = NULL; |
| 593 | } |
| 594 | } |
| 595 | } |
| 596 | |
| 597 | static inline struct sk_buff *pull_skb(pegasus_t * pegasus) |
| 598 | { |
| 599 | int i; |
| 600 | struct sk_buff *skb; |
| 601 | |
| 602 | for (i = 0; i < RX_SKBS; i++) { |
| 603 | if (likely(pegasus->rx_pool[i] != NULL)) { |
| 604 | skb = pegasus->rx_pool[i]; |
| 605 | pegasus->rx_pool[i] = NULL; |
| 606 | return skb; |
| 607 | } |
| 608 | } |
| 609 | return NULL; |
| 610 | } |
| 611 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 612 | static void read_bulk_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | { |
| 614 | pegasus_t *pegasus = urb->context; |
| 615 | struct net_device *net; |
| 616 | int rx_status, count = urb->actual_length; |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 617 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | u8 *buf = urb->transfer_buffer; |
| 619 | __u16 pkt_len; |
| 620 | |
| 621 | if (!pegasus) |
| 622 | return; |
| 623 | |
| 624 | net = pegasus->net; |
| 625 | if (!netif_device_present(net) || !netif_running(net)) |
| 626 | return; |
| 627 | |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 628 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | case 0: |
| 630 | break; |
Pete Zaitcev | 38e2bfc | 2006-09-18 22:49:02 -0700 | [diff] [blame] | 631 | case -ETIME: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | if (netif_msg_rx_err(pegasus)) |
| 633 | pr_debug("%s: reset MAC\n", net->name); |
| 634 | pegasus->flags &= ~PEGASUS_RX_BUSY; |
| 635 | break; |
| 636 | case -EPIPE: /* stall, or disconnect from TT */ |
| 637 | /* FIXME schedule work to clear the halt */ |
| 638 | if (netif_msg_rx_err(pegasus)) |
| 639 | printk(KERN_WARNING "%s: no rx stall recovery\n", |
| 640 | net->name); |
| 641 | return; |
| 642 | case -ENOENT: |
| 643 | case -ECONNRESET: |
| 644 | case -ESHUTDOWN: |
| 645 | if (netif_msg_ifdown(pegasus)) |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 646 | pr_debug("%s: rx unlink, %d\n", net->name, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | return; |
| 648 | default: |
| 649 | if (netif_msg_rx_err(pegasus)) |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 650 | pr_debug("%s: RX status %d\n", net->name, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 651 | goto goon; |
| 652 | } |
| 653 | |
| 654 | if (!count || count < 4) |
| 655 | goto goon; |
| 656 | |
| 657 | rx_status = buf[count - 2]; |
| 658 | if (rx_status & 0x1e) { |
| 659 | if (netif_msg_rx_err(pegasus)) |
| 660 | pr_debug("%s: RX packet error %x\n", |
| 661 | net->name, rx_status); |
| 662 | pegasus->stats.rx_errors++; |
| 663 | if (rx_status & 0x06) // long or runt |
| 664 | pegasus->stats.rx_length_errors++; |
| 665 | if (rx_status & 0x08) |
| 666 | pegasus->stats.rx_crc_errors++; |
| 667 | if (rx_status & 0x10) // extra bits |
| 668 | pegasus->stats.rx_frame_errors++; |
| 669 | goto goon; |
| 670 | } |
| 671 | if (pegasus->chip == 0x8513) { |
| 672 | pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer); |
| 673 | pkt_len &= 0x0fff; |
| 674 | pegasus->rx_skb->data += 2; |
| 675 | } else { |
| 676 | pkt_len = buf[count - 3] << 8; |
| 677 | pkt_len += buf[count - 4]; |
| 678 | pkt_len &= 0xfff; |
| 679 | pkt_len -= 8; |
| 680 | } |
| 681 | |
| 682 | /* |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 683 | * If the packet is unreasonably long, quietly drop it rather than |
| 684 | * kernel panicing by calling skb_put. |
| 685 | */ |
| 686 | if (pkt_len > PEGASUS_MTU) |
| 687 | goto goon; |
| 688 | |
| 689 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | * at this point we are sure pegasus->rx_skb != NULL |
| 691 | * so we go ahead and pass up the packet. |
| 692 | */ |
| 693 | skb_put(pegasus->rx_skb, pkt_len); |
| 694 | pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net); |
| 695 | netif_rx(pegasus->rx_skb); |
| 696 | pegasus->stats.rx_packets++; |
| 697 | pegasus->stats.rx_bytes += pkt_len; |
| 698 | |
| 699 | if (pegasus->flags & PEGASUS_UNPLUG) |
| 700 | return; |
| 701 | |
| 702 | spin_lock(&pegasus->rx_pool_lock); |
| 703 | pegasus->rx_skb = pull_skb(pegasus); |
| 704 | spin_unlock(&pegasus->rx_pool_lock); |
| 705 | |
| 706 | if (pegasus->rx_skb == NULL) |
| 707 | goto tl_sched; |
| 708 | goon: |
| 709 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, |
| 710 | usb_rcvbulkpipe(pegasus->usb, 1), |
| 711 | pegasus->rx_skb->data, PEGASUS_MTU + 8, |
| 712 | read_bulk_callback, pegasus); |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 713 | rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); |
| 714 | if (rx_status == -ENODEV) |
| 715 | netif_device_detach(pegasus->net); |
| 716 | else if (rx_status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | pegasus->flags |= PEGASUS_RX_URB_FAIL; |
| 718 | goto tl_sched; |
| 719 | } else { |
| 720 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; |
| 721 | } |
| 722 | |
| 723 | return; |
| 724 | |
| 725 | tl_sched: |
| 726 | tasklet_schedule(&pegasus->rx_tl); |
| 727 | } |
| 728 | |
| 729 | static void rx_fixup(unsigned long data) |
| 730 | { |
| 731 | pegasus_t *pegasus; |
| 732 | unsigned long flags; |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 733 | int status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | |
| 735 | pegasus = (pegasus_t *) data; |
| 736 | if (pegasus->flags & PEGASUS_UNPLUG) |
| 737 | return; |
| 738 | |
| 739 | spin_lock_irqsave(&pegasus->rx_pool_lock, flags); |
| 740 | fill_skb_pool(pegasus); |
| 741 | if (pegasus->flags & PEGASUS_RX_URB_FAIL) |
| 742 | if (pegasus->rx_skb) |
| 743 | goto try_again; |
| 744 | if (pegasus->rx_skb == NULL) { |
| 745 | pegasus->rx_skb = pull_skb(pegasus); |
| 746 | } |
| 747 | if (pegasus->rx_skb == NULL) { |
| 748 | if (netif_msg_rx_err(pegasus)) |
| 749 | printk(KERN_WARNING "%s: low on memory\n", |
| 750 | pegasus->net->name); |
| 751 | tasklet_schedule(&pegasus->rx_tl); |
| 752 | goto done; |
| 753 | } |
| 754 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, |
| 755 | usb_rcvbulkpipe(pegasus->usb, 1), |
| 756 | pegasus->rx_skb->data, PEGASUS_MTU + 8, |
| 757 | read_bulk_callback, pegasus); |
| 758 | try_again: |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 759 | status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); |
| 760 | if (status == -ENODEV) |
| 761 | netif_device_detach(pegasus->net); |
| 762 | else if (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 763 | pegasus->flags |= PEGASUS_RX_URB_FAIL; |
| 764 | tasklet_schedule(&pegasus->rx_tl); |
| 765 | } else { |
| 766 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; |
| 767 | } |
| 768 | done: |
| 769 | spin_unlock_irqrestore(&pegasus->rx_pool_lock, flags); |
| 770 | } |
| 771 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 772 | static void write_bulk_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 773 | { |
| 774 | pegasus_t *pegasus = urb->context; |
Micah Gruber | 9351982 | 2007-07-23 16:05:52 +0800 | [diff] [blame] | 775 | struct net_device *net; |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 776 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | |
| 778 | if (!pegasus) |
| 779 | return; |
| 780 | |
Micah Gruber | 9351982 | 2007-07-23 16:05:52 +0800 | [diff] [blame] | 781 | net = pegasus->net; |
| 782 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 783 | if (!netif_device_present(net) || !netif_running(net)) |
| 784 | return; |
| 785 | |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 786 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 787 | case -EPIPE: |
| 788 | /* FIXME schedule_work() to clear the tx halt */ |
| 789 | netif_stop_queue(net); |
| 790 | if (netif_msg_tx_err(pegasus)) |
| 791 | printk(KERN_WARNING "%s: no tx stall recovery\n", |
| 792 | net->name); |
| 793 | return; |
| 794 | case -ENOENT: |
| 795 | case -ECONNRESET: |
| 796 | case -ESHUTDOWN: |
| 797 | if (netif_msg_ifdown(pegasus)) |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 798 | pr_debug("%s: tx unlink, %d\n", net->name, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | return; |
| 800 | default: |
| 801 | if (netif_msg_tx_err(pegasus)) |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 802 | pr_info("%s: TX status %d\n", net->name, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | /* FALL THROUGH */ |
| 804 | case 0: |
| 805 | break; |
| 806 | } |
| 807 | |
| 808 | net->trans_start = jiffies; |
| 809 | netif_wake_queue(net); |
| 810 | } |
| 811 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 812 | static void intr_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 813 | { |
| 814 | pegasus_t *pegasus = urb->context; |
| 815 | struct net_device *net; |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 816 | int res, status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 817 | |
| 818 | if (!pegasus) |
| 819 | return; |
| 820 | net = pegasus->net; |
| 821 | |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 822 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | case 0: |
| 824 | break; |
| 825 | case -ECONNRESET: /* unlink */ |
| 826 | case -ENOENT: |
| 827 | case -ESHUTDOWN: |
| 828 | return; |
| 829 | default: |
| 830 | /* some Pegasus-I products report LOTS of data |
| 831 | * toggle errors... avoid log spamming |
| 832 | */ |
| 833 | if (netif_msg_timer(pegasus)) |
| 834 | pr_debug("%s: intr status %d\n", net->name, |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 835 | status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 836 | } |
| 837 | |
| 838 | if (urb->actual_length >= 6) { |
| 839 | u8 * d = urb->transfer_buffer; |
| 840 | |
| 841 | /* byte 0 == tx_status1, reg 2B */ |
| 842 | if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL |
| 843 | |LATE_COL|JABBER_TIMEOUT)) { |
| 844 | pegasus->stats.tx_errors++; |
| 845 | if (d[0] & TX_UNDERRUN) |
| 846 | pegasus->stats.tx_fifo_errors++; |
| 847 | if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT)) |
| 848 | pegasus->stats.tx_aborted_errors++; |
| 849 | if (d[0] & LATE_COL) |
| 850 | pegasus->stats.tx_window_errors++; |
| 851 | } |
| 852 | |
| 853 | /* d[5].LINK_STATUS lies on some adapters. |
| 854 | * d[0].NO_CARRIER kicks in only with failed TX. |
| 855 | * ... so monitoring with MII may be safest. |
| 856 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | |
| 858 | /* bytes 3-4 == rx_lostpkt, reg 2E/2F */ |
| 859 | pegasus->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4]; |
| 860 | } |
| 861 | |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 862 | res = usb_submit_urb(urb, GFP_ATOMIC); |
| 863 | if (res == -ENODEV) |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 864 | netif_device_detach(pegasus->net); |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 865 | if (res && netif_msg_timer(pegasus)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | printk(KERN_ERR "%s: can't resubmit interrupt urb, %d\n", |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 867 | net->name, res); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 868 | } |
| 869 | |
| 870 | static void pegasus_tx_timeout(struct net_device *net) |
| 871 | { |
| 872 | pegasus_t *pegasus = netdev_priv(net); |
| 873 | if (netif_msg_timer(pegasus)) |
| 874 | printk(KERN_WARNING "%s: tx timeout\n", net->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 875 | usb_unlink_urb(pegasus->tx_urb); |
| 876 | pegasus->stats.tx_errors++; |
| 877 | } |
| 878 | |
| 879 | static int pegasus_start_xmit(struct sk_buff *skb, struct net_device *net) |
| 880 | { |
| 881 | pegasus_t *pegasus = netdev_priv(net); |
| 882 | int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3; |
| 883 | int res; |
| 884 | __u16 l16 = skb->len; |
| 885 | |
| 886 | netif_stop_queue(net); |
| 887 | |
| 888 | ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16); |
Arnaldo Carvalho de Melo | d626f62 | 2007-03-27 18:55:52 -0300 | [diff] [blame] | 889 | skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 890 | usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb, |
| 891 | usb_sndbulkpipe(pegasus->usb, 2), |
| 892 | pegasus->tx_buff, count, |
| 893 | write_bulk_callback, pegasus); |
| 894 | if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) { |
| 895 | if (netif_msg_tx_err(pegasus)) |
| 896 | printk(KERN_WARNING "%s: fail tx, %d\n", |
| 897 | net->name, res); |
| 898 | switch (res) { |
| 899 | case -EPIPE: /* stall, or disconnect from TT */ |
| 900 | /* cleanup should already have been scheduled */ |
| 901 | break; |
| 902 | case -ENODEV: /* disconnect() upcoming */ |
Oliver Neukum | 9dd014e | 2009-04-17 01:40:19 -0700 | [diff] [blame] | 903 | case -EPERM: |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 904 | netif_device_detach(pegasus->net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 905 | break; |
| 906 | default: |
| 907 | pegasus->stats.tx_errors++; |
| 908 | netif_start_queue(net); |
| 909 | } |
| 910 | } else { |
| 911 | pegasus->stats.tx_packets++; |
| 912 | pegasus->stats.tx_bytes += skb->len; |
| 913 | net->trans_start = jiffies; |
| 914 | } |
| 915 | dev_kfree_skb(skb); |
| 916 | |
| 917 | return 0; |
| 918 | } |
| 919 | |
| 920 | static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev) |
| 921 | { |
| 922 | return &((pegasus_t *) netdev_priv(dev))->stats; |
| 923 | } |
| 924 | |
| 925 | static inline void disable_net_traffic(pegasus_t * pegasus) |
| 926 | { |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 927 | __le16 tmp = cpu_to_le16(0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 929 | set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 930 | } |
| 931 | |
| 932 | static inline void get_interrupt_interval(pegasus_t * pegasus) |
| 933 | { |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 934 | u16 data; |
| 935 | u8 interval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 936 | |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 937 | read_eprom_word(pegasus, 4, &data); |
| 938 | interval = data >> 8; |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 939 | if (pegasus->usb->speed != USB_SPEED_HIGH) { |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 940 | if (interval < 0x80) { |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 941 | if (netif_msg_timer(pegasus)) |
| 942 | dev_info(&pegasus->intf->dev, "intr interval " |
| 943 | "changed from %ums to %ums\n", |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 944 | interval, 0x80); |
| 945 | interval = 0x80; |
| 946 | data = (data & 0x00FF) | ((u16)interval << 8); |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 947 | #ifdef PEGASUS_WRITE_EEPROM |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 948 | write_eprom_word(pegasus, 4, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 949 | #endif |
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 | } |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 952 | pegasus->intr_interval = interval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 953 | } |
| 954 | |
| 955 | static void set_carrier(struct net_device *net) |
| 956 | { |
| 957 | pegasus_t *pegasus = netdev_priv(net); |
| 958 | u16 tmp; |
| 959 | |
Dan Williams | c43c49b | 2007-04-24 10:20:06 -0400 | [diff] [blame] | 960 | if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 961 | return; |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 962 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 963 | if (tmp & BMSR_LSTATUS) |
| 964 | netif_carrier_on(net); |
| 965 | else |
| 966 | netif_carrier_off(net); |
| 967 | } |
| 968 | |
| 969 | static void free_all_urbs(pegasus_t * pegasus) |
| 970 | { |
| 971 | usb_free_urb(pegasus->intr_urb); |
| 972 | usb_free_urb(pegasus->tx_urb); |
| 973 | usb_free_urb(pegasus->rx_urb); |
| 974 | usb_free_urb(pegasus->ctrl_urb); |
| 975 | } |
| 976 | |
| 977 | static void unlink_all_urbs(pegasus_t * pegasus) |
| 978 | { |
| 979 | usb_kill_urb(pegasus->intr_urb); |
| 980 | usb_kill_urb(pegasus->tx_urb); |
| 981 | usb_kill_urb(pegasus->rx_urb); |
| 982 | usb_kill_urb(pegasus->ctrl_urb); |
| 983 | } |
| 984 | |
| 985 | static int alloc_urbs(pegasus_t * pegasus) |
| 986 | { |
| 987 | pegasus->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 988 | if (!pegasus->ctrl_urb) { |
| 989 | return 0; |
| 990 | } |
| 991 | pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 992 | if (!pegasus->rx_urb) { |
| 993 | usb_free_urb(pegasus->ctrl_urb); |
| 994 | return 0; |
| 995 | } |
| 996 | pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 997 | if (!pegasus->tx_urb) { |
| 998 | usb_free_urb(pegasus->rx_urb); |
| 999 | usb_free_urb(pegasus->ctrl_urb); |
| 1000 | return 0; |
| 1001 | } |
| 1002 | pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 1003 | if (!pegasus->intr_urb) { |
| 1004 | usb_free_urb(pegasus->tx_urb); |
| 1005 | usb_free_urb(pegasus->rx_urb); |
| 1006 | usb_free_urb(pegasus->ctrl_urb); |
| 1007 | return 0; |
| 1008 | } |
| 1009 | |
| 1010 | return 1; |
| 1011 | } |
| 1012 | |
| 1013 | static int pegasus_open(struct net_device *net) |
| 1014 | { |
| 1015 | pegasus_t *pegasus = netdev_priv(net); |
| 1016 | int res; |
| 1017 | |
| 1018 | if (pegasus->rx_skb == NULL) |
| 1019 | pegasus->rx_skb = pull_skb(pegasus); |
| 1020 | /* |
| 1021 | ** Note: no point to free the pool. it is empty :-) |
| 1022 | */ |
| 1023 | if (!pegasus->rx_skb) |
| 1024 | return -ENOMEM; |
| 1025 | |
| 1026 | res = set_registers(pegasus, EthID, 6, net->dev_addr); |
| 1027 | |
| 1028 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, |
| 1029 | usb_rcvbulkpipe(pegasus->usb, 1), |
| 1030 | pegasus->rx_skb->data, PEGASUS_MTU + 8, |
| 1031 | read_bulk_callback, pegasus); |
| 1032 | if ((res = usb_submit_urb(pegasus->rx_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 rx_urb, %d", net->name, res); |
| 1037 | goto exit; |
| 1038 | } |
| 1039 | |
| 1040 | usb_fill_int_urb(pegasus->intr_urb, pegasus->usb, |
| 1041 | usb_rcvintpipe(pegasus->usb, 3), |
| 1042 | pegasus->intr_buff, sizeof (pegasus->intr_buff), |
| 1043 | intr_callback, pegasus, pegasus->intr_interval); |
| 1044 | if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) { |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 1045 | if (res == -ENODEV) |
| 1046 | netif_device_detach(pegasus->net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1047 | if (netif_msg_ifup(pegasus)) |
| 1048 | pr_debug("%s: failed intr_urb, %d\n", net->name, res); |
| 1049 | usb_kill_urb(pegasus->rx_urb); |
| 1050 | goto exit; |
| 1051 | } |
| 1052 | if ((res = enable_net_traffic(net, pegasus->usb))) { |
| 1053 | if (netif_msg_ifup(pegasus)) |
| 1054 | pr_debug("%s: can't enable_net_traffic() - %d\n", |
| 1055 | net->name, res); |
| 1056 | res = -EIO; |
| 1057 | usb_kill_urb(pegasus->rx_urb); |
| 1058 | usb_kill_urb(pegasus->intr_urb); |
| 1059 | free_skb_pool(pegasus); |
| 1060 | goto exit; |
| 1061 | } |
| 1062 | set_carrier(net); |
| 1063 | netif_start_queue(net); |
| 1064 | if (netif_msg_ifup(pegasus)) |
| 1065 | pr_debug("%s: open\n", net->name); |
| 1066 | res = 0; |
| 1067 | exit: |
| 1068 | return res; |
| 1069 | } |
| 1070 | |
| 1071 | static int pegasus_close(struct net_device *net) |
| 1072 | { |
| 1073 | pegasus_t *pegasus = netdev_priv(net); |
| 1074 | |
| 1075 | netif_stop_queue(net); |
| 1076 | if (!(pegasus->flags & PEGASUS_UNPLUG)) |
| 1077 | disable_net_traffic(pegasus); |
| 1078 | tasklet_kill(&pegasus->rx_tl); |
| 1079 | unlink_all_urbs(pegasus); |
| 1080 | |
| 1081 | return 0; |
| 1082 | } |
| 1083 | |
| 1084 | static void pegasus_get_drvinfo(struct net_device *dev, |
| 1085 | struct ethtool_drvinfo *info) |
| 1086 | { |
| 1087 | pegasus_t *pegasus = netdev_priv(dev); |
| 1088 | strncpy(info->driver, driver_name, sizeof (info->driver) - 1); |
| 1089 | strncpy(info->version, DRIVER_VERSION, sizeof (info->version) - 1); |
| 1090 | usb_make_path(pegasus->usb, info->bus_info, sizeof (info->bus_info)); |
| 1091 | } |
| 1092 | |
| 1093 | /* also handles three patterns of some kind in hardware */ |
| 1094 | #define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY) |
| 1095 | |
| 1096 | static void |
| 1097 | pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 1098 | { |
| 1099 | pegasus_t *pegasus = netdev_priv(dev); |
| 1100 | |
| 1101 | wol->supported = WAKE_MAGIC | WAKE_PHY; |
| 1102 | wol->wolopts = pegasus->wolopts; |
| 1103 | } |
| 1104 | |
| 1105 | static int |
| 1106 | pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 1107 | { |
| 1108 | pegasus_t *pegasus = netdev_priv(dev); |
| 1109 | u8 reg78 = 0x04; |
| 1110 | |
| 1111 | if (wol->wolopts & ~WOL_SUPPORTED) |
| 1112 | return -EINVAL; |
| 1113 | |
| 1114 | if (wol->wolopts & WAKE_MAGIC) |
| 1115 | reg78 |= 0x80; |
| 1116 | if (wol->wolopts & WAKE_PHY) |
| 1117 | reg78 |= 0x40; |
| 1118 | /* FIXME this 0x10 bit still needs to get set in the chip... */ |
| 1119 | if (wol->wolopts) |
| 1120 | pegasus->eth_regs[0] |= 0x10; |
| 1121 | else |
| 1122 | pegasus->eth_regs[0] &= ~0x10; |
| 1123 | pegasus->wolopts = wol->wolopts; |
| 1124 | return set_register(pegasus, WakeupControl, reg78); |
| 1125 | } |
| 1126 | |
| 1127 | static inline void pegasus_reset_wol(struct net_device *dev) |
| 1128 | { |
| 1129 | struct ethtool_wolinfo wol; |
| 1130 | |
| 1131 | memset(&wol, 0, sizeof wol); |
| 1132 | (void) pegasus_set_wol(dev, &wol); |
| 1133 | } |
| 1134 | |
| 1135 | static int |
| 1136 | pegasus_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
| 1137 | { |
| 1138 | pegasus_t *pegasus; |
| 1139 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1140 | pegasus = netdev_priv(dev); |
| 1141 | mii_ethtool_gset(&pegasus->mii, ecmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1142 | return 0; |
| 1143 | } |
| 1144 | |
| 1145 | static int |
| 1146 | pegasus_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
| 1147 | { |
| 1148 | pegasus_t *pegasus = netdev_priv(dev); |
| 1149 | return mii_ethtool_sset(&pegasus->mii, ecmd); |
| 1150 | } |
| 1151 | |
| 1152 | static int pegasus_nway_reset(struct net_device *dev) |
| 1153 | { |
| 1154 | pegasus_t *pegasus = netdev_priv(dev); |
| 1155 | return mii_nway_restart(&pegasus->mii); |
| 1156 | } |
| 1157 | |
| 1158 | static u32 pegasus_get_link(struct net_device *dev) |
| 1159 | { |
| 1160 | pegasus_t *pegasus = netdev_priv(dev); |
| 1161 | return mii_link_ok(&pegasus->mii); |
| 1162 | } |
| 1163 | |
| 1164 | static u32 pegasus_get_msglevel(struct net_device *dev) |
| 1165 | { |
| 1166 | pegasus_t *pegasus = netdev_priv(dev); |
| 1167 | return pegasus->msg_enable; |
| 1168 | } |
| 1169 | |
| 1170 | static void pegasus_set_msglevel(struct net_device *dev, u32 v) |
| 1171 | { |
| 1172 | pegasus_t *pegasus = netdev_priv(dev); |
| 1173 | pegasus->msg_enable = v; |
| 1174 | } |
| 1175 | |
| 1176 | static struct ethtool_ops ops = { |
| 1177 | .get_drvinfo = pegasus_get_drvinfo, |
| 1178 | .get_settings = pegasus_get_settings, |
| 1179 | .set_settings = pegasus_set_settings, |
| 1180 | .nway_reset = pegasus_nway_reset, |
| 1181 | .get_link = pegasus_get_link, |
| 1182 | .get_msglevel = pegasus_get_msglevel, |
| 1183 | .set_msglevel = pegasus_set_msglevel, |
| 1184 | .get_wol = pegasus_get_wol, |
| 1185 | .set_wol = pegasus_set_wol, |
| 1186 | }; |
| 1187 | |
| 1188 | static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd) |
| 1189 | { |
| 1190 | __u16 *data = (__u16 *) & rq->ifr_ifru; |
| 1191 | pegasus_t *pegasus = netdev_priv(net); |
| 1192 | int res; |
| 1193 | |
| 1194 | switch (cmd) { |
| 1195 | case SIOCDEVPRIVATE: |
| 1196 | data[0] = pegasus->phy; |
| 1197 | case SIOCDEVPRIVATE + 1: |
| 1198 | read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]); |
| 1199 | res = 0; |
| 1200 | break; |
| 1201 | case SIOCDEVPRIVATE + 2: |
| 1202 | if (!capable(CAP_NET_ADMIN)) |
| 1203 | return -EPERM; |
| 1204 | write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, data[2]); |
| 1205 | res = 0; |
| 1206 | break; |
| 1207 | default: |
| 1208 | res = -EOPNOTSUPP; |
| 1209 | } |
| 1210 | return res; |
| 1211 | } |
| 1212 | |
| 1213 | static void pegasus_set_multicast(struct net_device *net) |
| 1214 | { |
| 1215 | pegasus_t *pegasus = netdev_priv(net); |
| 1216 | |
| 1217 | if (net->flags & IFF_PROMISC) { |
| 1218 | pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS; |
| 1219 | if (netif_msg_link(pegasus)) |
| 1220 | pr_info("%s: Promiscuous mode enabled.\n", net->name); |
David Brownell | e000ea1 | 2008-09-02 11:34:24 -0700 | [diff] [blame] | 1221 | } else if (net->mc_count || (net->flags & IFF_ALLMULTI)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1222 | pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST; |
| 1223 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; |
| 1224 | if (netif_msg_link(pegasus)) |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1225 | pr_debug("%s: set allmulti\n", net->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1226 | } else { |
| 1227 | pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST; |
| 1228 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; |
| 1229 | } |
| 1230 | |
David Brownell | e000ea1 | 2008-09-02 11:34:24 -0700 | [diff] [blame] | 1231 | pegasus->ctrl_urb->status = 0; |
| 1232 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1233 | pegasus->flags |= ETH_REGS_CHANGE; |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1234 | ctrl_callback(pegasus->ctrl_urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1235 | } |
| 1236 | |
| 1237 | static __u8 mii_phy_probe(pegasus_t * pegasus) |
| 1238 | { |
| 1239 | int i; |
| 1240 | __u16 tmp; |
| 1241 | |
| 1242 | for (i = 0; i < 32; i++) { |
| 1243 | read_mii_word(pegasus, i, MII_BMSR, &tmp); |
| 1244 | if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0) |
| 1245 | continue; |
| 1246 | else |
| 1247 | return i; |
| 1248 | } |
| 1249 | |
| 1250 | return 0xff; |
| 1251 | } |
| 1252 | |
| 1253 | static inline void setup_pegasus_II(pegasus_t * pegasus) |
| 1254 | { |
| 1255 | __u8 data = 0xa5; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1256 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1257 | set_register(pegasus, Reg1d, 0); |
| 1258 | set_register(pegasus, Reg7b, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1259 | mdelay(100); |
| 1260 | if ((pegasus->features & HAS_HOME_PNA) && mii_mode) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1261 | set_register(pegasus, Reg7b, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1262 | else |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1263 | set_register(pegasus, Reg7b, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1264 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1265 | set_register(pegasus, 0x83, data); |
| 1266 | get_registers(pegasus, 0x83, 1, &data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1267 | |
| 1268 | if (data == 0xa5) { |
| 1269 | pegasus->chip = 0x8513; |
| 1270 | } else { |
| 1271 | pegasus->chip = 0; |
| 1272 | } |
| 1273 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1274 | set_register(pegasus, 0x80, 0xc0); |
| 1275 | set_register(pegasus, 0x83, 0xff); |
| 1276 | set_register(pegasus, 0x84, 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1277 | |
| 1278 | if (pegasus->features & HAS_HOME_PNA && mii_mode) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1279 | set_register(pegasus, Reg81, 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1280 | else |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1281 | set_register(pegasus, Reg81, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1282 | } |
| 1283 | |
| 1284 | |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1285 | static int pegasus_count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1286 | static struct workqueue_struct *pegasus_workqueue = NULL; |
| 1287 | #define CARRIER_CHECK_DELAY (2 * HZ) |
| 1288 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1289 | static void check_carrier(struct work_struct *work) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1290 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1291 | pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1292 | set_carrier(pegasus->net); |
| 1293 | if (!(pegasus->flags & PEGASUS_UNPLUG)) { |
| 1294 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, |
| 1295 | CARRIER_CHECK_DELAY); |
| 1296 | } |
| 1297 | } |
| 1298 | |
Ben Collins | 4f63135 | 2008-07-30 12:39:02 -0700 | [diff] [blame] | 1299 | static int pegasus_blacklisted(struct usb_device *udev) |
| 1300 | { |
| 1301 | struct usb_device_descriptor *udd = &udev->descriptor; |
| 1302 | |
| 1303 | /* Special quirk to keep the driver from handling the Belkin Bluetooth |
| 1304 | * dongle which happens to have the same ID. |
| 1305 | */ |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 1306 | if ((udd->idVendor == cpu_to_le16(VENDOR_BELKIN)) && |
| 1307 | (udd->idProduct == cpu_to_le16(0x0121)) && |
Ben Collins | 4f63135 | 2008-07-30 12:39:02 -0700 | [diff] [blame] | 1308 | (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) && |
| 1309 | (udd->bDeviceProtocol == 1)) |
| 1310 | return 1; |
| 1311 | |
| 1312 | return 0; |
| 1313 | } |
| 1314 | |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1315 | /* we rely on probe() and remove() being serialized so we |
| 1316 | * don't need extra locking on pegasus_count. |
| 1317 | */ |
| 1318 | static void pegasus_dec_workqueue(void) |
| 1319 | { |
| 1320 | pegasus_count--; |
| 1321 | if (pegasus_count == 0) { |
| 1322 | destroy_workqueue(pegasus_workqueue); |
| 1323 | pegasus_workqueue = NULL; |
| 1324 | } |
| 1325 | } |
| 1326 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1327 | static int pegasus_probe(struct usb_interface *intf, |
| 1328 | const struct usb_device_id *id) |
| 1329 | { |
| 1330 | struct usb_device *dev = interface_to_usbdev(intf); |
| 1331 | struct net_device *net; |
| 1332 | pegasus_t *pegasus; |
| 1333 | int dev_index = id - pegasus_ids; |
| 1334 | int res = -ENOMEM; |
| 1335 | |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1336 | if (pegasus_blacklisted(dev)) |
| 1337 | return -ENODEV; |
Ben Collins | 4f63135 | 2008-07-30 12:39:02 -0700 | [diff] [blame] | 1338 | |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1339 | if (pegasus_count == 0) { |
| 1340 | pegasus_workqueue = create_singlethread_workqueue("pegasus"); |
| 1341 | if (!pegasus_workqueue) |
| 1342 | return -ENOMEM; |
Ben Collins | 4f63135 | 2008-07-30 12:39:02 -0700 | [diff] [blame] | 1343 | } |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1344 | pegasus_count++; |
| 1345 | |
| 1346 | usb_get_dev(dev); |
Ben Collins | 4f63135 | 2008-07-30 12:39:02 -0700 | [diff] [blame] | 1347 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1348 | net = alloc_etherdev(sizeof(struct pegasus)); |
| 1349 | if (!net) { |
| 1350 | dev_err(&intf->dev, "can't allocate %s\n", "device"); |
| 1351 | goto out; |
| 1352 | } |
| 1353 | |
| 1354 | pegasus = netdev_priv(net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1355 | pegasus->dev_index = dev_index; |
| 1356 | init_waitqueue_head(&pegasus->ctrl_wait); |
| 1357 | |
| 1358 | if (!alloc_urbs(pegasus)) { |
| 1359 | dev_err(&intf->dev, "can't allocate %s\n", "urbs"); |
| 1360 | goto out1; |
| 1361 | } |
| 1362 | |
| 1363 | tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus); |
| 1364 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1365 | INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1366 | |
| 1367 | pegasus->intf = intf; |
| 1368 | pegasus->usb = dev; |
| 1369 | pegasus->net = net; |
Oliver Neukum | 8cb8957 | 2009-01-08 11:22:25 -0800 | [diff] [blame] | 1370 | |
| 1371 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1372 | net->watchdog_timeo = PEGASUS_TX_TIMEOUT; |
Oliver Neukum | 8cb8957 | 2009-01-08 11:22:25 -0800 | [diff] [blame] | 1373 | net->netdev_ops = &pegasus_netdev_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1374 | SET_ETHTOOL_OPS(net, &ops); |
| 1375 | pegasus->mii.dev = net; |
| 1376 | pegasus->mii.mdio_read = mdio_read; |
| 1377 | pegasus->mii.mdio_write = mdio_write; |
| 1378 | pegasus->mii.phy_id_mask = 0x1f; |
| 1379 | pegasus->mii.reg_num_mask = 0x1f; |
| 1380 | spin_lock_init(&pegasus->rx_pool_lock); |
| 1381 | pegasus->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV |
| 1382 | | NETIF_MSG_PROBE | NETIF_MSG_LINK); |
| 1383 | |
| 1384 | pegasus->features = usb_dev_id[dev_index].private; |
| 1385 | get_interrupt_interval(pegasus); |
| 1386 | if (reset_mac(pegasus)) { |
| 1387 | dev_err(&intf->dev, "can't reset MAC\n"); |
| 1388 | res = -EIO; |
| 1389 | goto out2; |
| 1390 | } |
| 1391 | set_ethernet_addr(pegasus); |
| 1392 | fill_skb_pool(pegasus); |
| 1393 | if (pegasus->features & PEGASUS_II) { |
| 1394 | dev_info(&intf->dev, "setup Pegasus II specific registers\n"); |
| 1395 | setup_pegasus_II(pegasus); |
| 1396 | } |
| 1397 | pegasus->phy = mii_phy_probe(pegasus); |
| 1398 | if (pegasus->phy == 0xff) { |
| 1399 | dev_warn(&intf->dev, "can't locate MII phy, using default\n"); |
| 1400 | pegasus->phy = 1; |
| 1401 | } |
| 1402 | pegasus->mii.phy_id = pegasus->phy; |
| 1403 | usb_set_intfdata(intf, pegasus); |
| 1404 | SET_NETDEV_DEV(net, &intf->dev); |
| 1405 | pegasus_reset_wol(net); |
| 1406 | res = register_netdev(net); |
| 1407 | if (res) |
| 1408 | goto out3; |
| 1409 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, |
| 1410 | CARRIER_CHECK_DELAY); |
| 1411 | |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 1412 | dev_info(&intf->dev, "%s, %s, %pM\n", |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1413 | net->name, |
| 1414 | usb_dev_id[dev_index].name, |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 1415 | net->dev_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1416 | return 0; |
| 1417 | |
| 1418 | out3: |
| 1419 | usb_set_intfdata(intf, NULL); |
| 1420 | free_skb_pool(pegasus); |
| 1421 | out2: |
| 1422 | free_all_urbs(pegasus); |
| 1423 | out1: |
| 1424 | free_netdev(net); |
| 1425 | out: |
| 1426 | usb_put_dev(dev); |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1427 | pegasus_dec_workqueue(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1428 | return res; |
| 1429 | } |
| 1430 | |
| 1431 | static void pegasus_disconnect(struct usb_interface *intf) |
| 1432 | { |
| 1433 | struct pegasus *pegasus = usb_get_intfdata(intf); |
| 1434 | |
| 1435 | usb_set_intfdata(intf, NULL); |
| 1436 | if (!pegasus) { |
| 1437 | dev_dbg(&intf->dev, "unregistering non-bound device?\n"); |
| 1438 | return; |
| 1439 | } |
| 1440 | |
| 1441 | pegasus->flags |= PEGASUS_UNPLUG; |
| 1442 | cancel_delayed_work(&pegasus->carrier_check); |
| 1443 | unregister_netdev(pegasus->net); |
| 1444 | usb_put_dev(interface_to_usbdev(intf)); |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 1445 | unlink_all_urbs(pegasus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1446 | free_all_urbs(pegasus); |
| 1447 | free_skb_pool(pegasus); |
Arnaldo Carvalho de Melo | 4c13eb6 | 2007-04-25 17:40:23 -0700 | [diff] [blame] | 1448 | if (pegasus->rx_skb != NULL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1449 | dev_kfree_skb(pegasus->rx_skb); |
Arnaldo Carvalho de Melo | 4c13eb6 | 2007-04-25 17:40:23 -0700 | [diff] [blame] | 1450 | pegasus->rx_skb = NULL; |
| 1451 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1452 | free_netdev(pegasus->net); |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1453 | pegasus_dec_workqueue(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1454 | } |
| 1455 | |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1456 | static int pegasus_suspend (struct usb_interface *intf, pm_message_t message) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1457 | { |
| 1458 | struct pegasus *pegasus = usb_get_intfdata(intf); |
| 1459 | |
| 1460 | netif_device_detach (pegasus->net); |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 1461 | cancel_delayed_work(&pegasus->carrier_check); |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1462 | if (netif_running(pegasus->net)) { |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1463 | usb_kill_urb(pegasus->rx_urb); |
| 1464 | usb_kill_urb(pegasus->intr_urb); |
| 1465 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1466 | return 0; |
| 1467 | } |
| 1468 | |
| 1469 | static int pegasus_resume (struct usb_interface *intf) |
| 1470 | { |
| 1471 | struct pegasus *pegasus = usb_get_intfdata(intf); |
| 1472 | |
| 1473 | netif_device_attach (pegasus->net); |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1474 | if (netif_running(pegasus->net)) { |
| 1475 | pegasus->rx_urb->status = 0; |
| 1476 | pegasus->rx_urb->actual_length = 0; |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1477 | read_bulk_callback(pegasus->rx_urb); |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1478 | |
| 1479 | pegasus->intr_urb->status = 0; |
| 1480 | pegasus->intr_urb->actual_length = 0; |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1481 | intr_callback(pegasus->intr_urb); |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1482 | } |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 1483 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, |
| 1484 | CARRIER_CHECK_DELAY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1485 | return 0; |
| 1486 | } |
| 1487 | |
Oliver Neukum | 8cb8957 | 2009-01-08 11:22:25 -0800 | [diff] [blame] | 1488 | static const struct net_device_ops pegasus_netdev_ops = { |
| 1489 | .ndo_open = pegasus_open, |
| 1490 | .ndo_stop = pegasus_close, |
| 1491 | .ndo_do_ioctl = pegasus_ioctl, |
| 1492 | .ndo_start_xmit = pegasus_start_xmit, |
| 1493 | .ndo_set_multicast_list = pegasus_set_multicast, |
| 1494 | .ndo_get_stats = pegasus_netdev_stats, |
| 1495 | .ndo_tx_timeout = pegasus_tx_timeout, |
Ben Hutchings | 635ecaa | 2009-07-09 17:59:01 +0000 | [diff] [blame] | 1496 | .ndo_change_mtu = eth_change_mtu, |
Ben Hutchings | 240c102 | 2009-07-09 17:54:35 +0000 | [diff] [blame] | 1497 | .ndo_set_mac_address = eth_mac_addr, |
| 1498 | .ndo_validate_addr = eth_validate_addr, |
Oliver Neukum | 8cb8957 | 2009-01-08 11:22:25 -0800 | [diff] [blame] | 1499 | }; |
| 1500 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1501 | static struct usb_driver pegasus_driver = { |
| 1502 | .name = driver_name, |
| 1503 | .probe = pegasus_probe, |
| 1504 | .disconnect = pegasus_disconnect, |
| 1505 | .id_table = pegasus_ids, |
| 1506 | .suspend = pegasus_suspend, |
| 1507 | .resume = pegasus_resume, |
| 1508 | }; |
| 1509 | |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1510 | static void __init parse_id(char *id) |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 1511 | { |
| 1512 | unsigned int vendor_id=0, device_id=0, flags=0, i=0; |
| 1513 | char *token, *name=NULL; |
| 1514 | |
| 1515 | if ((token = strsep(&id, ":")) != NULL) |
| 1516 | name = token; |
| 1517 | /* name now points to a null terminated string*/ |
| 1518 | if ((token = strsep(&id, ":")) != NULL) |
| 1519 | vendor_id = simple_strtoul(token, NULL, 16); |
| 1520 | if ((token = strsep(&id, ":")) != NULL) |
| 1521 | device_id = simple_strtoul(token, NULL, 16); |
| 1522 | flags = simple_strtoul(id, NULL, 16); |
| 1523 | pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n", |
| 1524 | driver_name, name, vendor_id, device_id, flags); |
| 1525 | |
| 1526 | if (vendor_id > 0x10000 || vendor_id == 0) |
| 1527 | return; |
| 1528 | if (device_id > 0x10000 || device_id == 0) |
| 1529 | return; |
| 1530 | |
| 1531 | for (i=0; usb_dev_id[i].name; i++); |
| 1532 | usb_dev_id[i].name = name; |
| 1533 | usb_dev_id[i].vendor = vendor_id; |
| 1534 | usb_dev_id[i].device = device_id; |
| 1535 | usb_dev_id[i].private = flags; |
| 1536 | pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; |
| 1537 | pegasus_ids[i].idVendor = vendor_id; |
| 1538 | pegasus_ids[i].idProduct = device_id; |
| 1539 | } |
| 1540 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1541 | static int __init pegasus_init(void) |
| 1542 | { |
| 1543 | pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION); |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 1544 | if (devid) |
| 1545 | parse_id(devid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1546 | return usb_register(&pegasus_driver); |
| 1547 | } |
| 1548 | |
| 1549 | static void __exit pegasus_exit(void) |
| 1550 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1551 | usb_deregister(&pegasus_driver); |
| 1552 | } |
| 1553 | |
| 1554 | module_init(pegasus_init); |
| 1555 | module_exit(pegasus_exit); |