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() |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 24 | * time as this seems to break dhcpd. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 28 | * is out of the interrupt routine. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 58 | static int loopback; |
| 59 | static int mii_mode; |
| 60 | static char *devid; |
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}, |
Chris Rankin | ab854b2 | 2009-10-13 00:32:02 -0700 | [diff] [blame] | 65 | #define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \ |
| 66 | PEGASUS_DEV(pn, vid, pid, flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | #include "pegasus.h" |
| 68 | #undef PEGASUS_DEV |
Chris Rankin | ab854b2 | 2009-10-13 00:32:02 -0700 | [diff] [blame] | 69 | #undef PEGASUS_DEV_CLASS |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 70 | {NULL, 0, 0, 0}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | {NULL, 0, 0, 0} |
| 72 | }; |
| 73 | |
| 74 | static struct usb_device_id pegasus_ids[] = { |
| 75 | #define PEGASUS_DEV(pn, vid, pid, flags) \ |
| 76 | {.match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = vid, .idProduct = pid}, |
Chris Rankin | ab854b2 | 2009-10-13 00:32:02 -0700 | [diff] [blame] | 77 | /* |
| 78 | * The Belkin F8T012xx1 bluetooth adaptor has the same vendor and product |
| 79 | * IDs as the Belkin F5D5050, so we need to teach the pegasus driver to |
| 80 | * ignore adaptors belonging to the "Wireless" class 0xE0. For this one |
| 81 | * case anyway, seeing as the pegasus is for "Wired" adaptors. |
| 82 | */ |
| 83 | #define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \ |
| 84 | {.match_flags = (USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_DEV_CLASS), \ |
| 85 | .idVendor = vid, .idProduct = pid, .bDeviceClass = dclass}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | #include "pegasus.h" |
| 87 | #undef PEGASUS_DEV |
Chris Rankin | ab854b2 | 2009-10-13 00:32:02 -0700 | [diff] [blame] | 88 | #undef PEGASUS_DEV_CLASS |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 89 | {}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | {} |
| 91 | }; |
| 92 | |
| 93 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 94 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 95 | MODULE_LICENSE("GPL"); |
| 96 | module_param(loopback, bool, 0); |
| 97 | module_param(mii_mode, bool, 0); |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 98 | module_param(devid, charp, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)"); |
| 100 | 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] | 101 | MODULE_PARM_DESC(devid, "The format is: 'DEV_name:VendorID:DeviceID:Flags'"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | |
| 103 | /* use ethtool to change the level for any given device */ |
| 104 | static int msg_level = -1; |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 105 | module_param(msg_level, int, 0); |
| 106 | MODULE_PARM_DESC(msg_level, "Override default message level"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | |
| 108 | MODULE_DEVICE_TABLE(usb, pegasus_ids); |
Oliver Neukum | 8cb8957 | 2009-01-08 11:22:25 -0800 | [diff] [blame] | 109 | static const struct net_device_ops pegasus_netdev_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | |
| 111 | static int update_eth_regs_async(pegasus_t *); |
| 112 | /* Aargh!!! I _really_ hate such tweaks */ |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 113 | static void ctrl_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | { |
| 115 | pegasus_t *pegasus = urb->context; |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 116 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | |
| 118 | if (!pegasus) |
| 119 | return; |
| 120 | |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 121 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | case 0: |
| 123 | if (pegasus->flags & ETH_REGS_CHANGE) { |
| 124 | pegasus->flags &= ~ETH_REGS_CHANGE; |
| 125 | pegasus->flags |= ETH_REGS_CHANGED; |
| 126 | update_eth_regs_async(pegasus); |
| 127 | return; |
| 128 | } |
| 129 | break; |
| 130 | case -EINPROGRESS: |
| 131 | return; |
| 132 | case -ENOENT: |
| 133 | break; |
| 134 | default: |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 135 | if (net_ratelimit()) |
| 136 | netif_dbg(pegasus, drv, pegasus->net, |
| 137 | "%s, status %d\n", __func__, status); |
| 138 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | } |
| 140 | pegasus->flags &= ~ETH_REGS_CHANGED; |
| 141 | wake_up(&pegasus->ctrl_wait); |
| 142 | } |
| 143 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 144 | static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | void *data) |
| 146 | { |
| 147 | int ret; |
| 148 | char *buffer; |
| 149 | DECLARE_WAITQUEUE(wait, current); |
| 150 | |
| 151 | buffer = kmalloc(size, GFP_KERNEL); |
| 152 | if (!buffer) { |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 153 | netif_warn(pegasus, drv, pegasus->net, |
| 154 | "out of memory in %s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | return -ENOMEM; |
| 156 | } |
| 157 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 158 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 159 | while (pegasus->flags & ETH_REGS_CHANGED) |
| 160 | schedule(); |
| 161 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 162 | set_current_state(TASK_RUNNING); |
| 163 | |
| 164 | pegasus->dr.bRequestType = PEGASUS_REQT_READ; |
| 165 | pegasus->dr.bRequest = PEGASUS_REQ_GET_REGS; |
| 166 | pegasus->dr.wValue = cpu_to_le16(0); |
Harvey Harrison | da2bbdc | 2008-10-29 14:25:51 -0700 | [diff] [blame] | 167 | pegasus->dr.wIndex = cpu_to_le16(indx); |
| 168 | pegasus->dr.wLength = cpu_to_le16(size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | pegasus->ctrl_urb->transfer_buffer_length = size; |
| 170 | |
| 171 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, |
| 172 | usb_rcvctrlpipe(pegasus->usb, 0), |
| 173 | (char *) &pegasus->dr, |
| 174 | buffer, size, ctrl_callback, pegasus); |
| 175 | |
| 176 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 177 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 178 | |
| 179 | /* using ATOMIC, we'd never wake up if we slept */ |
| 180 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { |
Oliver Neukum | 10c8211 | 2006-11-23 15:40:17 +0100 | [diff] [blame] | 181 | set_current_state(TASK_RUNNING); |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 182 | if (ret == -ENODEV) |
| 183 | netif_device_detach(pegasus->net); |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 184 | if (net_ratelimit()) |
| 185 | netif_err(pegasus, drv, pegasus->net, |
| 186 | "%s, status %d\n", __func__, ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | goto out; |
| 188 | } |
| 189 | |
| 190 | schedule(); |
| 191 | out: |
| 192 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 193 | memcpy(data, buffer, size); |
| 194 | kfree(buffer); |
| 195 | |
| 196 | return ret; |
| 197 | } |
| 198 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 199 | static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | void *data) |
| 201 | { |
| 202 | int ret; |
| 203 | char *buffer; |
| 204 | DECLARE_WAITQUEUE(wait, current); |
| 205 | |
Julia Lawall | 175c044 | 2010-05-15 11:18:58 +0000 | [diff] [blame] | 206 | buffer = kmemdup(data, size, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | if (!buffer) { |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 208 | netif_warn(pegasus, drv, pegasus->net, |
| 209 | "out of memory in %s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | return -ENOMEM; |
| 211 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | |
| 213 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 214 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 215 | while (pegasus->flags & ETH_REGS_CHANGED) |
| 216 | schedule(); |
| 217 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 218 | set_current_state(TASK_RUNNING); |
| 219 | |
| 220 | pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; |
| 221 | pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS; |
| 222 | pegasus->dr.wValue = cpu_to_le16(0); |
Harvey Harrison | da2bbdc | 2008-10-29 14:25:51 -0700 | [diff] [blame] | 223 | pegasus->dr.wIndex = cpu_to_le16(indx); |
| 224 | pegasus->dr.wLength = cpu_to_le16(size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | pegasus->ctrl_urb->transfer_buffer_length = size; |
| 226 | |
| 227 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, |
| 228 | usb_sndctrlpipe(pegasus->usb, 0), |
| 229 | (char *) &pegasus->dr, |
| 230 | buffer, size, ctrl_callback, pegasus); |
| 231 | |
| 232 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 233 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 234 | |
| 235 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 236 | if (ret == -ENODEV) |
| 237 | netif_device_detach(pegasus->net); |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 238 | netif_err(pegasus, drv, pegasus->net, |
| 239 | "%s, status %d\n", __func__, ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | goto out; |
| 241 | } |
| 242 | |
| 243 | schedule(); |
| 244 | out: |
| 245 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 246 | kfree(buffer); |
| 247 | |
| 248 | return ret; |
| 249 | } |
| 250 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 251 | static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | { |
| 253 | int ret; |
| 254 | char *tmp; |
| 255 | DECLARE_WAITQUEUE(wait, current); |
| 256 | |
Julia Lawall | 175c044 | 2010-05-15 11:18:58 +0000 | [diff] [blame] | 257 | tmp = kmemdup(&data, 1, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | if (!tmp) { |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 259 | netif_warn(pegasus, drv, pegasus->net, |
| 260 | "out of memory in %s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | return -ENOMEM; |
| 262 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 264 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 265 | while (pegasus->flags & ETH_REGS_CHANGED) |
| 266 | schedule(); |
| 267 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 268 | set_current_state(TASK_RUNNING); |
| 269 | |
| 270 | pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; |
| 271 | pegasus->dr.bRequest = PEGASUS_REQ_SET_REG; |
| 272 | pegasus->dr.wValue = cpu_to_le16(data); |
Harvey Harrison | da2bbdc | 2008-10-29 14:25:51 -0700 | [diff] [blame] | 273 | pegasus->dr.wIndex = cpu_to_le16(indx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | pegasus->dr.wLength = cpu_to_le16(1); |
| 275 | pegasus->ctrl_urb->transfer_buffer_length = 1; |
| 276 | |
| 277 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, |
| 278 | usb_sndctrlpipe(pegasus->usb, 0), |
| 279 | (char *) &pegasus->dr, |
Petko Manolov | 016534c | 2006-03-30 09:59:22 +0300 | [diff] [blame] | 280 | tmp, 1, ctrl_callback, pegasus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | |
| 282 | add_wait_queue(&pegasus->ctrl_wait, &wait); |
| 283 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 284 | |
| 285 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 286 | if (ret == -ENODEV) |
| 287 | netif_device_detach(pegasus->net); |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 288 | if (net_ratelimit()) |
| 289 | netif_err(pegasus, drv, pegasus->net, |
| 290 | "%s, status %d\n", __func__, ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | goto out; |
| 292 | } |
| 293 | |
| 294 | schedule(); |
| 295 | out: |
| 296 | remove_wait_queue(&pegasus->ctrl_wait, &wait); |
| 297 | kfree(tmp); |
| 298 | |
| 299 | return ret; |
| 300 | } |
| 301 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 302 | static int update_eth_regs_async(pegasus_t *pegasus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | { |
| 304 | int ret; |
| 305 | |
| 306 | pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; |
| 307 | pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS; |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 308 | pegasus->dr.wValue = cpu_to_le16(0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | pegasus->dr.wIndex = cpu_to_le16(EthCtrl0); |
| 310 | pegasus->dr.wLength = cpu_to_le16(3); |
| 311 | pegasus->ctrl_urb->transfer_buffer_length = 3; |
| 312 | |
| 313 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, |
| 314 | usb_sndctrlpipe(pegasus->usb, 0), |
| 315 | (char *) &pegasus->dr, |
| 316 | pegasus->eth_regs, 3, ctrl_callback, pegasus); |
| 317 | |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 318 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { |
| 319 | if (ret == -ENODEV) |
| 320 | netif_device_detach(pegasus->net); |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 321 | netif_err(pegasus, drv, pegasus->net, |
| 322 | "%s, status %d\n", __func__, ret); |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 323 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | |
| 325 | return ret; |
| 326 | } |
| 327 | |
Dan Williams | c43c49b | 2007-04-24 10:20:06 -0400 | [diff] [blame] | 328 | /* Returns 0 on success, error on failure */ |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 329 | static int read_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | { |
| 331 | int i; |
| 332 | __u8 data[4] = { phy, 0, 0, indx }; |
| 333 | __le16 regdi; |
| 334 | int ret; |
| 335 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 336 | set_register(pegasus, PhyCtrl, 0); |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 337 | set_registers(pegasus, PhyAddr, sizeof(data), data); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 338 | set_register(pegasus, PhyCtrl, (indx | PHY_READ)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | for (i = 0; i < REG_TIMEOUT; i++) { |
| 340 | ret = get_registers(pegasus, PhyCtrl, 1, data); |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 341 | if (ret == -ESHUTDOWN) |
| 342 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | if (data[0] & PHY_DONE) |
| 344 | break; |
| 345 | } |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 346 | |
| 347 | if (i >= REG_TIMEOUT) |
| 348 | goto fail; |
| 349 | |
| 350 | ret = get_registers(pegasus, PhyData, 2, ®di); |
| 351 | *regd = le16_to_cpu(regdi); |
| 352 | return ret; |
| 353 | |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 354 | fail: |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 355 | netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 357 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | } |
| 359 | |
| 360 | static int mdio_read(struct net_device *dev, int phy_id, int loc) |
| 361 | { |
Joe Perches | 8739cfe | 2010-11-15 11:12:29 +0000 | [diff] [blame] | 362 | pegasus_t *pegasus = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | u16 res; |
| 364 | |
| 365 | read_mii_word(pegasus, phy_id, loc, &res); |
| 366 | return (int)res; |
| 367 | } |
| 368 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 369 | static int write_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 regd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | { |
| 371 | int i; |
| 372 | __u8 data[4] = { phy, 0, 0, indx }; |
| 373 | int ret; |
| 374 | |
| 375 | data[1] = (u8) regd; |
| 376 | data[2] = (u8) (regd >> 8); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 377 | set_register(pegasus, PhyCtrl, 0); |
| 378 | set_registers(pegasus, PhyAddr, sizeof(data), data); |
| 379 | set_register(pegasus, PhyCtrl, (indx | PHY_WRITE)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | for (i = 0; i < REG_TIMEOUT; i++) { |
| 381 | ret = get_registers(pegasus, PhyCtrl, 1, data); |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 382 | if (ret == -ESHUTDOWN) |
| 383 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | if (data[0] & PHY_DONE) |
| 385 | break; |
| 386 | } |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 387 | |
| 388 | if (i >= REG_TIMEOUT) |
| 389 | goto fail; |
| 390 | |
| 391 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 393 | fail: |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 394 | netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 395 | return -ETIMEDOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | } |
| 397 | |
| 398 | static void mdio_write(struct net_device *dev, int phy_id, int loc, int val) |
| 399 | { |
Joe Perches | 8739cfe | 2010-11-15 11:12:29 +0000 | [diff] [blame] | 400 | pegasus_t *pegasus = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | |
| 402 | write_mii_word(pegasus, phy_id, loc, val); |
| 403 | } |
| 404 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 405 | static int read_eprom_word(pegasus_t *pegasus, __u8 index, __u16 *retdata) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | { |
| 407 | int i; |
| 408 | __u8 tmp; |
| 409 | __le16 retdatai; |
| 410 | int ret; |
| 411 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 412 | set_register(pegasus, EpromCtrl, 0); |
| 413 | set_register(pegasus, EpromOffset, index); |
| 414 | set_register(pegasus, EpromCtrl, EPROM_READ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | |
| 416 | for (i = 0; i < REG_TIMEOUT; i++) { |
| 417 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); |
| 418 | if (tmp & EPROM_DONE) |
| 419 | break; |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 420 | if (ret == -ESHUTDOWN) |
| 421 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | } |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 423 | if (i >= REG_TIMEOUT) |
| 424 | goto fail; |
| 425 | |
| 426 | ret = get_registers(pegasus, EpromData, 2, &retdatai); |
| 427 | *retdata = le16_to_cpu(retdatai); |
| 428 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 430 | fail: |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 431 | netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 432 | return -ETIMEDOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | } |
| 434 | |
| 435 | #ifdef PEGASUS_WRITE_EEPROM |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 436 | static inline void enable_eprom_write(pegasus_t *pegasus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | { |
| 438 | __u8 tmp; |
| 439 | int ret; |
| 440 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 441 | get_registers(pegasus, EthCtrl2, 1, &tmp); |
| 442 | set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | } |
| 444 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 445 | static inline void disable_eprom_write(pegasus_t *pegasus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | { |
| 447 | __u8 tmp; |
| 448 | int ret; |
| 449 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 450 | get_registers(pegasus, EthCtrl2, 1, &tmp); |
| 451 | set_register(pegasus, EpromCtrl, 0); |
| 452 | set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | } |
| 454 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 455 | static int write_eprom_word(pegasus_t *pegasus, __u8 index, __u16 data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | { |
| 457 | int i; |
| 458 | __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE }; |
| 459 | int ret; |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 460 | __le16 le_data = cpu_to_le16(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 462 | set_registers(pegasus, EpromOffset, 4, d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | enable_eprom_write(pegasus); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 464 | set_register(pegasus, EpromOffset, index); |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 465 | set_registers(pegasus, EpromData, 2, &le_data); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 466 | set_register(pegasus, EpromCtrl, EPROM_WRITE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | |
| 468 | for (i = 0; i < REG_TIMEOUT; i++) { |
| 469 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 470 | if (ret == -ESHUTDOWN) |
| 471 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 472 | if (tmp & EPROM_DONE) |
| 473 | break; |
| 474 | } |
| 475 | disable_eprom_write(pegasus); |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 476 | if (i >= REG_TIMEOUT) |
| 477 | goto fail; |
| 478 | |
| 479 | return ret; |
| 480 | |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 481 | fail: |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 482 | netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__); |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 483 | return -ETIMEDOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | } |
| 485 | #endif /* PEGASUS_WRITE_EEPROM */ |
| 486 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 487 | static inline void get_node_id(pegasus_t *pegasus, __u8 *id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | { |
| 489 | int i; |
| 490 | __u16 w16; |
| 491 | |
| 492 | for (i = 0; i < 3; i++) { |
| 493 | read_eprom_word(pegasus, i, &w16); |
Harvey Harrison | da2bbdc | 2008-10-29 14:25:51 -0700 | [diff] [blame] | 494 | ((__le16 *) id)[i] = cpu_to_le16(w16); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | } |
| 496 | } |
| 497 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 498 | static void set_ethernet_addr(pegasus_t *pegasus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | { |
| 500 | __u8 node_id[6]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 501 | |
Petko Manolov | 37cf347 | 2006-09-27 14:25:37 -0700 | [diff] [blame] | 502 | if (pegasus->features & PEGASUS_II) { |
| 503 | get_registers(pegasus, 0x10, sizeof(node_id), node_id); |
| 504 | } else { |
| 505 | get_node_id(pegasus, node_id); |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 506 | set_registers(pegasus, EthID, sizeof(node_id), node_id); |
Petko Manolov | 37cf347 | 2006-09-27 14:25:37 -0700 | [diff] [blame] | 507 | } |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 508 | memcpy(pegasus->net->dev_addr, node_id, sizeof(node_id)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | } |
| 510 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 511 | static inline int reset_mac(pegasus_t *pegasus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | { |
| 513 | __u8 data = 0x8; |
| 514 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 516 | set_register(pegasus, EthCtrl1, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | for (i = 0; i < REG_TIMEOUT; i++) { |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 518 | get_registers(pegasus, EthCtrl1, 1, &data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | if (~data & 0x08) { |
| 520 | if (loopback & 1) |
| 521 | break; |
| 522 | if (mii_mode && (pegasus->features & HAS_HOME_PNA)) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 523 | set_register(pegasus, Gpio1, 0x34); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | else |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 525 | set_register(pegasus, Gpio1, 0x26); |
| 526 | set_register(pegasus, Gpio0, pegasus->features); |
| 527 | set_register(pegasus, Gpio0, DEFAULT_GPIO_SET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | break; |
| 529 | } |
| 530 | } |
| 531 | if (i == REG_TIMEOUT) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 532 | return -ETIMEDOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | |
| 534 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || |
| 535 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 536 | set_register(pegasus, Gpio0, 0x24); |
| 537 | set_register(pegasus, Gpio0, 0x26); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | } |
| 539 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) { |
| 540 | __u16 auxmode; |
| 541 | read_mii_word(pegasus, 3, 0x1b, &auxmode); |
| 542 | write_mii_word(pegasus, 3, 0x1b, auxmode | 4); |
| 543 | } |
| 544 | |
| 545 | return 0; |
| 546 | } |
| 547 | |
| 548 | static int enable_net_traffic(struct net_device *dev, struct usb_device *usb) |
| 549 | { |
| 550 | __u16 linkpart; |
| 551 | __u8 data[4]; |
| 552 | pegasus_t *pegasus = netdev_priv(dev); |
| 553 | int ret; |
| 554 | |
| 555 | read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart); |
| 556 | data[0] = 0xc9; |
| 557 | data[1] = 0; |
| 558 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL)) |
| 559 | data[1] |= 0x20; /* set full duplex */ |
| 560 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF)) |
| 561 | data[1] |= 0x10; /* set 100 Mbps */ |
| 562 | if (mii_mode) |
| 563 | data[1] = 0; |
| 564 | data[2] = (loopback & 1) ? 0x09 : 0x01; |
| 565 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 566 | memcpy(pegasus->eth_regs, data, sizeof(data)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | ret = set_registers(pegasus, EthCtrl0, 3, data); |
| 568 | |
| 569 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || |
Malte Doersam | efafe6f | 2006-01-28 17:48:33 +0100 | [diff] [blame] | 570 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { |
| 572 | u16 auxmode; |
| 573 | read_mii_word(pegasus, 0, 0x1b, &auxmode); |
| 574 | write_mii_word(pegasus, 0, 0x1b, auxmode | 4); |
| 575 | } |
| 576 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 577 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | } |
| 579 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 580 | static void fill_skb_pool(pegasus_t *pegasus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | { |
| 582 | int i; |
| 583 | |
| 584 | for (i = 0; i < RX_SKBS; i++) { |
| 585 | if (pegasus->rx_pool[i]) |
| 586 | continue; |
| 587 | pegasus->rx_pool[i] = dev_alloc_skb(PEGASUS_MTU + 2); |
| 588 | /* |
| 589 | ** we give up if the allocation fail. the tasklet will be |
| 590 | ** rescheduled again anyway... |
| 591 | */ |
| 592 | if (pegasus->rx_pool[i] == NULL) |
| 593 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | skb_reserve(pegasus->rx_pool[i], 2); |
| 595 | } |
| 596 | } |
| 597 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 598 | static void free_skb_pool(pegasus_t *pegasus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | { |
| 600 | int i; |
| 601 | |
| 602 | for (i = 0; i < RX_SKBS; i++) { |
| 603 | if (pegasus->rx_pool[i]) { |
| 604 | dev_kfree_skb(pegasus->rx_pool[i]); |
| 605 | pegasus->rx_pool[i] = NULL; |
| 606 | } |
| 607 | } |
| 608 | } |
| 609 | |
| 610 | static inline struct sk_buff *pull_skb(pegasus_t * pegasus) |
| 611 | { |
| 612 | int i; |
| 613 | struct sk_buff *skb; |
| 614 | |
| 615 | for (i = 0; i < RX_SKBS; i++) { |
| 616 | if (likely(pegasus->rx_pool[i] != NULL)) { |
| 617 | skb = pegasus->rx_pool[i]; |
| 618 | pegasus->rx_pool[i] = NULL; |
| 619 | return skb; |
| 620 | } |
| 621 | } |
| 622 | return NULL; |
| 623 | } |
| 624 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 625 | static void read_bulk_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | { |
| 627 | pegasus_t *pegasus = urb->context; |
| 628 | struct net_device *net; |
| 629 | int rx_status, count = urb->actual_length; |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 630 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 631 | u8 *buf = urb->transfer_buffer; |
| 632 | __u16 pkt_len; |
| 633 | |
| 634 | if (!pegasus) |
| 635 | return; |
| 636 | |
| 637 | net = pegasus->net; |
| 638 | if (!netif_device_present(net) || !netif_running(net)) |
| 639 | return; |
| 640 | |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 641 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | case 0: |
| 643 | break; |
Pete Zaitcev | 38e2bfc | 2006-09-18 22:49:02 -0700 | [diff] [blame] | 644 | case -ETIME: |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 645 | netif_dbg(pegasus, rx_err, net, "reset MAC\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | pegasus->flags &= ~PEGASUS_RX_BUSY; |
| 647 | break; |
| 648 | case -EPIPE: /* stall, or disconnect from TT */ |
| 649 | /* FIXME schedule work to clear the halt */ |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 650 | netif_warn(pegasus, rx_err, net, "no rx stall recovery\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 651 | return; |
| 652 | case -ENOENT: |
| 653 | case -ECONNRESET: |
| 654 | case -ESHUTDOWN: |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 655 | netif_dbg(pegasus, ifdown, net, "rx unlink, %d\n", status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | return; |
| 657 | default: |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 658 | netif_dbg(pegasus, rx_err, net, "RX status %d\n", status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | goto goon; |
| 660 | } |
| 661 | |
| 662 | if (!count || count < 4) |
| 663 | goto goon; |
| 664 | |
| 665 | rx_status = buf[count - 2]; |
| 666 | if (rx_status & 0x1e) { |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 667 | netif_dbg(pegasus, rx_err, net, |
| 668 | "RX packet error %x\n", rx_status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | pegasus->stats.rx_errors++; |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 670 | if (rx_status & 0x06) /* long or runt */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | pegasus->stats.rx_length_errors++; |
| 672 | if (rx_status & 0x08) |
| 673 | pegasus->stats.rx_crc_errors++; |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 674 | if (rx_status & 0x10) /* extra bits */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | pegasus->stats.rx_frame_errors++; |
| 676 | goto goon; |
| 677 | } |
| 678 | if (pegasus->chip == 0x8513) { |
| 679 | pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer); |
| 680 | pkt_len &= 0x0fff; |
| 681 | pegasus->rx_skb->data += 2; |
| 682 | } else { |
| 683 | pkt_len = buf[count - 3] << 8; |
| 684 | pkt_len += buf[count - 4]; |
| 685 | pkt_len &= 0xfff; |
| 686 | pkt_len -= 8; |
| 687 | } |
| 688 | |
| 689 | /* |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 690 | * If the packet is unreasonably long, quietly drop it rather than |
| 691 | * kernel panicing by calling skb_put. |
| 692 | */ |
| 693 | if (pkt_len > PEGASUS_MTU) |
| 694 | goto goon; |
| 695 | |
| 696 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 697 | * at this point we are sure pegasus->rx_skb != NULL |
| 698 | * so we go ahead and pass up the packet. |
| 699 | */ |
| 700 | skb_put(pegasus->rx_skb, pkt_len); |
| 701 | pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net); |
| 702 | netif_rx(pegasus->rx_skb); |
| 703 | pegasus->stats.rx_packets++; |
| 704 | pegasus->stats.rx_bytes += pkt_len; |
| 705 | |
| 706 | if (pegasus->flags & PEGASUS_UNPLUG) |
| 707 | return; |
| 708 | |
| 709 | spin_lock(&pegasus->rx_pool_lock); |
| 710 | pegasus->rx_skb = pull_skb(pegasus); |
| 711 | spin_unlock(&pegasus->rx_pool_lock); |
| 712 | |
| 713 | if (pegasus->rx_skb == NULL) |
| 714 | goto tl_sched; |
| 715 | goon: |
| 716 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, |
| 717 | usb_rcvbulkpipe(pegasus->usb, 1), |
| 718 | pegasus->rx_skb->data, PEGASUS_MTU + 8, |
| 719 | read_bulk_callback, pegasus); |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 720 | rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); |
| 721 | if (rx_status == -ENODEV) |
| 722 | netif_device_detach(pegasus->net); |
| 723 | else if (rx_status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | pegasus->flags |= PEGASUS_RX_URB_FAIL; |
| 725 | goto tl_sched; |
| 726 | } else { |
| 727 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; |
| 728 | } |
| 729 | |
| 730 | return; |
| 731 | |
| 732 | tl_sched: |
| 733 | tasklet_schedule(&pegasus->rx_tl); |
| 734 | } |
| 735 | |
| 736 | static void rx_fixup(unsigned long data) |
| 737 | { |
| 738 | pegasus_t *pegasus; |
| 739 | unsigned long flags; |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 740 | int status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | |
| 742 | pegasus = (pegasus_t *) data; |
| 743 | if (pegasus->flags & PEGASUS_UNPLUG) |
| 744 | return; |
| 745 | |
| 746 | spin_lock_irqsave(&pegasus->rx_pool_lock, flags); |
| 747 | fill_skb_pool(pegasus); |
| 748 | if (pegasus->flags & PEGASUS_RX_URB_FAIL) |
| 749 | if (pegasus->rx_skb) |
| 750 | goto try_again; |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 751 | if (pegasus->rx_skb == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 752 | pegasus->rx_skb = pull_skb(pegasus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | if (pegasus->rx_skb == NULL) { |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 754 | netif_warn(pegasus, rx_err, pegasus->net, "low on memory\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 755 | tasklet_schedule(&pegasus->rx_tl); |
| 756 | goto done; |
| 757 | } |
| 758 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, |
| 759 | usb_rcvbulkpipe(pegasus->usb, 1), |
| 760 | pegasus->rx_skb->data, PEGASUS_MTU + 8, |
| 761 | read_bulk_callback, pegasus); |
| 762 | try_again: |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 763 | status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); |
| 764 | if (status == -ENODEV) |
| 765 | netif_device_detach(pegasus->net); |
| 766 | else if (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | pegasus->flags |= PEGASUS_RX_URB_FAIL; |
| 768 | tasklet_schedule(&pegasus->rx_tl); |
| 769 | } else { |
| 770 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; |
| 771 | } |
| 772 | done: |
| 773 | spin_unlock_irqrestore(&pegasus->rx_pool_lock, flags); |
| 774 | } |
| 775 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 776 | static void write_bulk_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | { |
| 778 | pegasus_t *pegasus = urb->context; |
Micah Gruber | 9351982 | 2007-07-23 16:05:52 +0800 | [diff] [blame] | 779 | struct net_device *net; |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 780 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | |
| 782 | if (!pegasus) |
| 783 | return; |
| 784 | |
Micah Gruber | 9351982 | 2007-07-23 16:05:52 +0800 | [diff] [blame] | 785 | net = pegasus->net; |
| 786 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 787 | if (!netif_device_present(net) || !netif_running(net)) |
| 788 | return; |
| 789 | |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 790 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | case -EPIPE: |
| 792 | /* FIXME schedule_work() to clear the tx halt */ |
| 793 | netif_stop_queue(net); |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 794 | netif_warn(pegasus, tx_err, net, "no tx stall recovery\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 795 | return; |
| 796 | case -ENOENT: |
| 797 | case -ECONNRESET: |
| 798 | case -ESHUTDOWN: |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 799 | netif_dbg(pegasus, ifdown, net, "tx unlink, %d\n", status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 800 | return; |
| 801 | default: |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 802 | netif_info(pegasus, tx_err, net, "TX status %d\n", status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | /* FALL THROUGH */ |
| 804 | case 0: |
| 805 | break; |
| 806 | } |
| 807 | |
Eric Dumazet | 1ae5dc3 | 2010-05-10 05:01:31 -0700 | [diff] [blame] | 808 | net->trans_start = jiffies; /* prevent tx timeout */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 833 | netif_dbg(pegasus, timer, net, "intr status %d\n", status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 834 | } |
| 835 | |
| 836 | if (urb->actual_length >= 6) { |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 837 | u8 *d = urb->transfer_buffer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | |
| 839 | /* byte 0 == tx_status1, reg 2B */ |
| 840 | if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL |
| 841 | |LATE_COL|JABBER_TIMEOUT)) { |
| 842 | pegasus->stats.tx_errors++; |
| 843 | if (d[0] & TX_UNDERRUN) |
| 844 | pegasus->stats.tx_fifo_errors++; |
| 845 | if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT)) |
| 846 | pegasus->stats.tx_aborted_errors++; |
| 847 | if (d[0] & LATE_COL) |
| 848 | pegasus->stats.tx_window_errors++; |
| 849 | } |
| 850 | |
| 851 | /* d[5].LINK_STATUS lies on some adapters. |
| 852 | * d[0].NO_CARRIER kicks in only with failed TX. |
| 853 | * ... so monitoring with MII may be safest. |
| 854 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | |
| 856 | /* bytes 3-4 == rx_lostpkt, reg 2E/2F */ |
| 857 | pegasus->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4]; |
| 858 | } |
| 859 | |
Oliver Neukum | c94cb31 | 2008-12-18 23:00:59 -0800 | [diff] [blame] | 860 | res = usb_submit_urb(urb, GFP_ATOMIC); |
| 861 | if (res == -ENODEV) |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 862 | netif_device_detach(pegasus->net); |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 863 | if (res) |
| 864 | netif_err(pegasus, timer, net, |
| 865 | "can't resubmit interrupt urb, %d\n", res); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | } |
| 867 | |
| 868 | static void pegasus_tx_timeout(struct net_device *net) |
| 869 | { |
| 870 | pegasus_t *pegasus = netdev_priv(net); |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 871 | netif_warn(pegasus, timer, net, "tx timeout\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 872 | usb_unlink_urb(pegasus->tx_urb); |
| 873 | pegasus->stats.tx_errors++; |
| 874 | } |
| 875 | |
Stephen Hemminger | 25a79c4 | 2009-08-31 19:50:45 +0000 | [diff] [blame] | 876 | static netdev_tx_t pegasus_start_xmit(struct sk_buff *skb, |
| 877 | struct net_device *net) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 878 | { |
| 879 | pegasus_t *pegasus = netdev_priv(net); |
| 880 | int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3; |
| 881 | int res; |
| 882 | __u16 l16 = skb->len; |
| 883 | |
| 884 | netif_stop_queue(net); |
| 885 | |
| 886 | ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16); |
Arnaldo Carvalho de Melo | d626f62 | 2007-03-27 18:55:52 -0300 | [diff] [blame] | 887 | skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 888 | usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb, |
| 889 | usb_sndbulkpipe(pegasus->usb, 2), |
| 890 | pegasus->tx_buff, count, |
| 891 | write_bulk_callback, pegasus); |
| 892 | if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) { |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 893 | netif_warn(pegasus, tx_err, net, "fail tx, %d\n", res); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | switch (res) { |
| 895 | case -EPIPE: /* stall, or disconnect from TT */ |
| 896 | /* cleanup should already have been scheduled */ |
| 897 | break; |
| 898 | case -ENODEV: /* disconnect() upcoming */ |
Oliver Neukum | 9dd014e | 2009-04-17 01:40:19 -0700 | [diff] [blame] | 899 | case -EPERM: |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 900 | netif_device_detach(pegasus->net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 901 | break; |
| 902 | default: |
| 903 | pegasus->stats.tx_errors++; |
| 904 | netif_start_queue(net); |
| 905 | } |
| 906 | } else { |
| 907 | pegasus->stats.tx_packets++; |
| 908 | pegasus->stats.tx_bytes += skb->len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 909 | } |
| 910 | dev_kfree_skb(skb); |
| 911 | |
Patrick McHardy | 6ed1065 | 2009-06-23 06:03:08 +0000 | [diff] [blame] | 912 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 913 | } |
| 914 | |
| 915 | static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev) |
| 916 | { |
| 917 | return &((pegasus_t *) netdev_priv(dev))->stats; |
| 918 | } |
| 919 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 920 | static inline void disable_net_traffic(pegasus_t *pegasus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 921 | { |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 922 | __le16 tmp = cpu_to_le16(0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 924 | set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 925 | } |
| 926 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 927 | static inline void get_interrupt_interval(pegasus_t *pegasus) |
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 | u16 data; |
| 930 | u8 interval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 931 | |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 932 | read_eprom_word(pegasus, 4, &data); |
| 933 | interval = data >> 8; |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 934 | if (pegasus->usb->speed != USB_SPEED_HIGH) { |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 935 | if (interval < 0x80) { |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 936 | netif_info(pegasus, timer, pegasus->net, |
| 937 | "intr interval changed from %ums to %ums\n", |
| 938 | interval, 0x80); |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 939 | interval = 0x80; |
| 940 | data = (data & 0x00FF) | ((u16)interval << 8); |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 941 | #ifdef PEGASUS_WRITE_EEPROM |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 942 | write_eprom_word(pegasus, 4, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 943 | #endif |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 944 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | } |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 946 | pegasus->intr_interval = interval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 947 | } |
| 948 | |
| 949 | static void set_carrier(struct net_device *net) |
| 950 | { |
| 951 | pegasus_t *pegasus = netdev_priv(net); |
| 952 | u16 tmp; |
| 953 | |
Dan Williams | c43c49b | 2007-04-24 10:20:06 -0400 | [diff] [blame] | 954 | if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 955 | return; |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 956 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 957 | if (tmp & BMSR_LSTATUS) |
| 958 | netif_carrier_on(net); |
| 959 | else |
| 960 | netif_carrier_off(net); |
| 961 | } |
| 962 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 963 | static void free_all_urbs(pegasus_t *pegasus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 964 | { |
| 965 | usb_free_urb(pegasus->intr_urb); |
| 966 | usb_free_urb(pegasus->tx_urb); |
| 967 | usb_free_urb(pegasus->rx_urb); |
| 968 | usb_free_urb(pegasus->ctrl_urb); |
| 969 | } |
| 970 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 971 | static void unlink_all_urbs(pegasus_t *pegasus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 972 | { |
| 973 | usb_kill_urb(pegasus->intr_urb); |
| 974 | usb_kill_urb(pegasus->tx_urb); |
| 975 | usb_kill_urb(pegasus->rx_urb); |
| 976 | usb_kill_urb(pegasus->ctrl_urb); |
| 977 | } |
| 978 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 979 | static int alloc_urbs(pegasus_t *pegasus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 980 | { |
| 981 | pegasus->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 982 | if (!pegasus->ctrl_urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 983 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 984 | pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 985 | if (!pegasus->rx_urb) { |
| 986 | usb_free_urb(pegasus->ctrl_urb); |
| 987 | return 0; |
| 988 | } |
| 989 | pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 990 | if (!pegasus->tx_urb) { |
| 991 | usb_free_urb(pegasus->rx_urb); |
| 992 | usb_free_urb(pegasus->ctrl_urb); |
| 993 | return 0; |
| 994 | } |
| 995 | pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 996 | if (!pegasus->intr_urb) { |
| 997 | usb_free_urb(pegasus->tx_urb); |
| 998 | usb_free_urb(pegasus->rx_urb); |
| 999 | usb_free_urb(pegasus->ctrl_urb); |
| 1000 | return 0; |
| 1001 | } |
| 1002 | |
| 1003 | return 1; |
| 1004 | } |
| 1005 | |
| 1006 | static int pegasus_open(struct net_device *net) |
| 1007 | { |
| 1008 | pegasus_t *pegasus = netdev_priv(net); |
| 1009 | int res; |
| 1010 | |
| 1011 | if (pegasus->rx_skb == NULL) |
| 1012 | pegasus->rx_skb = pull_skb(pegasus); |
| 1013 | /* |
| 1014 | ** Note: no point to free the pool. it is empty :-) |
| 1015 | */ |
| 1016 | if (!pegasus->rx_skb) |
| 1017 | return -ENOMEM; |
| 1018 | |
| 1019 | res = set_registers(pegasus, EthID, 6, net->dev_addr); |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1020 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1021 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, |
| 1022 | usb_rcvbulkpipe(pegasus->usb, 1), |
| 1023 | pegasus->rx_skb->data, PEGASUS_MTU + 8, |
| 1024 | read_bulk_callback, pegasus); |
| 1025 | if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) { |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 1026 | if (res == -ENODEV) |
| 1027 | netif_device_detach(pegasus->net); |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 1028 | netif_dbg(pegasus, ifup, net, "failed rx_urb, %d\n", res); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1029 | goto exit; |
| 1030 | } |
| 1031 | |
| 1032 | usb_fill_int_urb(pegasus->intr_urb, pegasus->usb, |
| 1033 | usb_rcvintpipe(pegasus->usb, 3), |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1034 | pegasus->intr_buff, sizeof(pegasus->intr_buff), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | intr_callback, pegasus, pegasus->intr_interval); |
| 1036 | if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) { |
David Brownell | 955a260 | 2006-05-26 10:17:03 -0700 | [diff] [blame] | 1037 | if (res == -ENODEV) |
| 1038 | netif_device_detach(pegasus->net); |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 1039 | netif_dbg(pegasus, ifup, net, "failed intr_urb, %d\n", res); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1040 | usb_kill_urb(pegasus->rx_urb); |
| 1041 | goto exit; |
| 1042 | } |
| 1043 | if ((res = enable_net_traffic(net, pegasus->usb))) { |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 1044 | netif_dbg(pegasus, ifup, net, |
| 1045 | "can't enable_net_traffic() - %d\n", res); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1046 | res = -EIO; |
| 1047 | usb_kill_urb(pegasus->rx_urb); |
| 1048 | usb_kill_urb(pegasus->intr_urb); |
| 1049 | free_skb_pool(pegasus); |
| 1050 | goto exit; |
| 1051 | } |
| 1052 | set_carrier(net); |
| 1053 | netif_start_queue(net); |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 1054 | netif_dbg(pegasus, ifup, net, "open\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1055 | res = 0; |
| 1056 | exit: |
| 1057 | return res; |
| 1058 | } |
| 1059 | |
| 1060 | static int pegasus_close(struct net_device *net) |
| 1061 | { |
| 1062 | pegasus_t *pegasus = netdev_priv(net); |
| 1063 | |
| 1064 | netif_stop_queue(net); |
| 1065 | if (!(pegasus->flags & PEGASUS_UNPLUG)) |
| 1066 | disable_net_traffic(pegasus); |
| 1067 | tasklet_kill(&pegasus->rx_tl); |
| 1068 | unlink_all_urbs(pegasus); |
| 1069 | |
| 1070 | return 0; |
| 1071 | } |
| 1072 | |
| 1073 | static void pegasus_get_drvinfo(struct net_device *dev, |
| 1074 | struct ethtool_drvinfo *info) |
| 1075 | { |
| 1076 | pegasus_t *pegasus = netdev_priv(dev); |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1077 | strncpy(info->driver, driver_name, sizeof(info->driver) - 1); |
| 1078 | strncpy(info->version, DRIVER_VERSION, sizeof(info->version) - 1); |
| 1079 | usb_make_path(pegasus->usb, info->bus_info, sizeof(info->bus_info)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1080 | } |
| 1081 | |
| 1082 | /* also handles three patterns of some kind in hardware */ |
| 1083 | #define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY) |
| 1084 | |
| 1085 | static void |
| 1086 | pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 1087 | { |
| 1088 | pegasus_t *pegasus = netdev_priv(dev); |
| 1089 | |
| 1090 | wol->supported = WAKE_MAGIC | WAKE_PHY; |
| 1091 | wol->wolopts = pegasus->wolopts; |
| 1092 | } |
| 1093 | |
| 1094 | static int |
| 1095 | pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 1096 | { |
| 1097 | pegasus_t *pegasus = netdev_priv(dev); |
| 1098 | u8 reg78 = 0x04; |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1099 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1100 | if (wol->wolopts & ~WOL_SUPPORTED) |
| 1101 | return -EINVAL; |
| 1102 | |
| 1103 | if (wol->wolopts & WAKE_MAGIC) |
| 1104 | reg78 |= 0x80; |
| 1105 | if (wol->wolopts & WAKE_PHY) |
| 1106 | reg78 |= 0x40; |
| 1107 | /* FIXME this 0x10 bit still needs to get set in the chip... */ |
| 1108 | if (wol->wolopts) |
| 1109 | pegasus->eth_regs[0] |= 0x10; |
| 1110 | else |
| 1111 | pegasus->eth_regs[0] &= ~0x10; |
| 1112 | pegasus->wolopts = wol->wolopts; |
| 1113 | return set_register(pegasus, WakeupControl, reg78); |
| 1114 | } |
| 1115 | |
| 1116 | static inline void pegasus_reset_wol(struct net_device *dev) |
| 1117 | { |
| 1118 | struct ethtool_wolinfo wol; |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1119 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1120 | memset(&wol, 0, sizeof wol); |
| 1121 | (void) pegasus_set_wol(dev, &wol); |
| 1122 | } |
| 1123 | |
| 1124 | static int |
| 1125 | pegasus_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
| 1126 | { |
| 1127 | pegasus_t *pegasus; |
| 1128 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1129 | pegasus = netdev_priv(dev); |
| 1130 | mii_ethtool_gset(&pegasus->mii, ecmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1131 | return 0; |
| 1132 | } |
| 1133 | |
| 1134 | static int |
| 1135 | pegasus_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) |
| 1136 | { |
| 1137 | pegasus_t *pegasus = netdev_priv(dev); |
| 1138 | return mii_ethtool_sset(&pegasus->mii, ecmd); |
| 1139 | } |
| 1140 | |
| 1141 | static int pegasus_nway_reset(struct net_device *dev) |
| 1142 | { |
| 1143 | pegasus_t *pegasus = netdev_priv(dev); |
| 1144 | return mii_nway_restart(&pegasus->mii); |
| 1145 | } |
| 1146 | |
| 1147 | static u32 pegasus_get_link(struct net_device *dev) |
| 1148 | { |
| 1149 | pegasus_t *pegasus = netdev_priv(dev); |
| 1150 | return mii_link_ok(&pegasus->mii); |
| 1151 | } |
| 1152 | |
| 1153 | static u32 pegasus_get_msglevel(struct net_device *dev) |
| 1154 | { |
| 1155 | pegasus_t *pegasus = netdev_priv(dev); |
| 1156 | return pegasus->msg_enable; |
| 1157 | } |
| 1158 | |
| 1159 | static void pegasus_set_msglevel(struct net_device *dev, u32 v) |
| 1160 | { |
| 1161 | pegasus_t *pegasus = netdev_priv(dev); |
| 1162 | pegasus->msg_enable = v; |
| 1163 | } |
| 1164 | |
Stephen Hemminger | 0fc0b73 | 2009-09-02 01:03:33 -0700 | [diff] [blame] | 1165 | static const struct ethtool_ops ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1166 | .get_drvinfo = pegasus_get_drvinfo, |
| 1167 | .get_settings = pegasus_get_settings, |
| 1168 | .set_settings = pegasus_set_settings, |
| 1169 | .nway_reset = pegasus_nway_reset, |
| 1170 | .get_link = pegasus_get_link, |
| 1171 | .get_msglevel = pegasus_get_msglevel, |
| 1172 | .set_msglevel = pegasus_set_msglevel, |
| 1173 | .get_wol = pegasus_get_wol, |
| 1174 | .set_wol = pegasus_set_wol, |
| 1175 | }; |
| 1176 | |
| 1177 | static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd) |
| 1178 | { |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1179 | __u16 *data = (__u16 *) &rq->ifr_ifru; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1180 | pegasus_t *pegasus = netdev_priv(net); |
| 1181 | int res; |
| 1182 | |
| 1183 | switch (cmd) { |
| 1184 | case SIOCDEVPRIVATE: |
| 1185 | data[0] = pegasus->phy; |
| 1186 | case SIOCDEVPRIVATE + 1: |
| 1187 | read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]); |
| 1188 | res = 0; |
| 1189 | break; |
| 1190 | case SIOCDEVPRIVATE + 2: |
| 1191 | if (!capable(CAP_NET_ADMIN)) |
| 1192 | return -EPERM; |
| 1193 | write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, data[2]); |
| 1194 | res = 0; |
| 1195 | break; |
| 1196 | default: |
| 1197 | res = -EOPNOTSUPP; |
| 1198 | } |
| 1199 | return res; |
| 1200 | } |
| 1201 | |
| 1202 | static void pegasus_set_multicast(struct net_device *net) |
| 1203 | { |
| 1204 | pegasus_t *pegasus = netdev_priv(net); |
| 1205 | |
| 1206 | if (net->flags & IFF_PROMISC) { |
| 1207 | pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS; |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 1208 | netif_info(pegasus, link, net, "Promiscuous mode enabled\n"); |
Jiri Pirko | 4cd24ea | 2010-02-08 04:30:35 +0000 | [diff] [blame] | 1209 | } else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1210 | pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST; |
| 1211 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; |
Joe Perches | a475f60 | 2010-02-17 10:30:24 +0000 | [diff] [blame] | 1212 | netif_dbg(pegasus, link, net, "set allmulti\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1213 | } else { |
| 1214 | pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST; |
| 1215 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; |
| 1216 | } |
| 1217 | |
David Brownell | e000ea1 | 2008-09-02 11:34:24 -0700 | [diff] [blame] | 1218 | pegasus->ctrl_urb->status = 0; |
| 1219 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1220 | pegasus->flags |= ETH_REGS_CHANGE; |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1221 | ctrl_callback(pegasus->ctrl_urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1222 | } |
| 1223 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1224 | static __u8 mii_phy_probe(pegasus_t *pegasus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1225 | { |
| 1226 | int i; |
| 1227 | __u16 tmp; |
| 1228 | |
| 1229 | for (i = 0; i < 32; i++) { |
| 1230 | read_mii_word(pegasus, i, MII_BMSR, &tmp); |
| 1231 | if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0) |
| 1232 | continue; |
| 1233 | else |
| 1234 | return i; |
| 1235 | } |
| 1236 | |
| 1237 | return 0xff; |
| 1238 | } |
| 1239 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1240 | static inline void setup_pegasus_II(pegasus_t *pegasus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1241 | { |
| 1242 | __u8 data = 0xa5; |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1243 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1244 | set_register(pegasus, Reg1d, 0); |
| 1245 | set_register(pegasus, Reg7b, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1246 | mdelay(100); |
| 1247 | if ((pegasus->features & HAS_HOME_PNA) && mii_mode) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1248 | set_register(pegasus, Reg7b, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1249 | else |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1250 | set_register(pegasus, Reg7b, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1251 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1252 | set_register(pegasus, 0x83, data); |
| 1253 | get_registers(pegasus, 0x83, 1, &data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1254 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1255 | if (data == 0xa5) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1256 | pegasus->chip = 0x8513; |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1257 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1258 | pegasus->chip = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1259 | |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1260 | set_register(pegasus, 0x80, 0xc0); |
| 1261 | set_register(pegasus, 0x83, 0xff); |
| 1262 | set_register(pegasus, 0x84, 0x01); |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1263 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1264 | if (pegasus->features & HAS_HOME_PNA && mii_mode) |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1265 | set_register(pegasus, Reg81, 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1266 | else |
Petko Manolov | 4a1728a | 2005-11-15 09:48:23 +0200 | [diff] [blame] | 1267 | set_register(pegasus, Reg81, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1268 | } |
| 1269 | |
| 1270 | |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1271 | static int pegasus_count; |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1272 | static struct workqueue_struct *pegasus_workqueue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1273 | #define CARRIER_CHECK_DELAY (2 * HZ) |
| 1274 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1275 | static void check_carrier(struct work_struct *work) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1276 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1277 | pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1278 | set_carrier(pegasus->net); |
| 1279 | if (!(pegasus->flags & PEGASUS_UNPLUG)) { |
| 1280 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, |
| 1281 | CARRIER_CHECK_DELAY); |
| 1282 | } |
| 1283 | } |
| 1284 | |
Ben Collins | 4f63135 | 2008-07-30 12:39:02 -0700 | [diff] [blame] | 1285 | static int pegasus_blacklisted(struct usb_device *udev) |
| 1286 | { |
| 1287 | struct usb_device_descriptor *udd = &udev->descriptor; |
| 1288 | |
| 1289 | /* Special quirk to keep the driver from handling the Belkin Bluetooth |
| 1290 | * dongle which happens to have the same ID. |
| 1291 | */ |
Michael Buesch | e3453f6 | 2009-06-18 07:03:47 +0000 | [diff] [blame] | 1292 | if ((udd->idVendor == cpu_to_le16(VENDOR_BELKIN)) && |
| 1293 | (udd->idProduct == cpu_to_le16(0x0121)) && |
Ben Collins | 4f63135 | 2008-07-30 12:39:02 -0700 | [diff] [blame] | 1294 | (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) && |
| 1295 | (udd->bDeviceProtocol == 1)) |
| 1296 | return 1; |
| 1297 | |
| 1298 | return 0; |
| 1299 | } |
| 1300 | |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1301 | /* we rely on probe() and remove() being serialized so we |
| 1302 | * don't need extra locking on pegasus_count. |
| 1303 | */ |
| 1304 | static void pegasus_dec_workqueue(void) |
| 1305 | { |
| 1306 | pegasus_count--; |
| 1307 | if (pegasus_count == 0) { |
| 1308 | destroy_workqueue(pegasus_workqueue); |
| 1309 | pegasus_workqueue = NULL; |
| 1310 | } |
| 1311 | } |
| 1312 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1313 | static int pegasus_probe(struct usb_interface *intf, |
| 1314 | const struct usb_device_id *id) |
| 1315 | { |
| 1316 | struct usb_device *dev = interface_to_usbdev(intf); |
| 1317 | struct net_device *net; |
| 1318 | pegasus_t *pegasus; |
| 1319 | int dev_index = id - pegasus_ids; |
| 1320 | int res = -ENOMEM; |
| 1321 | |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1322 | if (pegasus_blacklisted(dev)) |
| 1323 | return -ENODEV; |
Ben Collins | 4f63135 | 2008-07-30 12:39:02 -0700 | [diff] [blame] | 1324 | |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1325 | if (pegasus_count == 0) { |
| 1326 | pegasus_workqueue = create_singlethread_workqueue("pegasus"); |
| 1327 | if (!pegasus_workqueue) |
| 1328 | return -ENOMEM; |
Ben Collins | 4f63135 | 2008-07-30 12:39:02 -0700 | [diff] [blame] | 1329 | } |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1330 | pegasus_count++; |
| 1331 | |
| 1332 | usb_get_dev(dev); |
Ben Collins | 4f63135 | 2008-07-30 12:39:02 -0700 | [diff] [blame] | 1333 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1334 | net = alloc_etherdev(sizeof(struct pegasus)); |
| 1335 | if (!net) { |
| 1336 | dev_err(&intf->dev, "can't allocate %s\n", "device"); |
| 1337 | goto out; |
| 1338 | } |
| 1339 | |
| 1340 | pegasus = netdev_priv(net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1341 | pegasus->dev_index = dev_index; |
| 1342 | init_waitqueue_head(&pegasus->ctrl_wait); |
| 1343 | |
| 1344 | if (!alloc_urbs(pegasus)) { |
| 1345 | dev_err(&intf->dev, "can't allocate %s\n", "urbs"); |
| 1346 | goto out1; |
| 1347 | } |
| 1348 | |
| 1349 | tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus); |
| 1350 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1351 | INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1352 | |
| 1353 | pegasus->intf = intf; |
| 1354 | pegasus->usb = dev; |
| 1355 | pegasus->net = net; |
Oliver Neukum | 8cb8957 | 2009-01-08 11:22:25 -0800 | [diff] [blame] | 1356 | |
| 1357 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1358 | net->watchdog_timeo = PEGASUS_TX_TIMEOUT; |
Oliver Neukum | 8cb8957 | 2009-01-08 11:22:25 -0800 | [diff] [blame] | 1359 | net->netdev_ops = &pegasus_netdev_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1360 | SET_ETHTOOL_OPS(net, &ops); |
| 1361 | pegasus->mii.dev = net; |
| 1362 | pegasus->mii.mdio_read = mdio_read; |
| 1363 | pegasus->mii.mdio_write = mdio_write; |
| 1364 | pegasus->mii.phy_id_mask = 0x1f; |
| 1365 | pegasus->mii.reg_num_mask = 0x1f; |
| 1366 | spin_lock_init(&pegasus->rx_pool_lock); |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1367 | pegasus->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1368 | | NETIF_MSG_PROBE | NETIF_MSG_LINK); |
| 1369 | |
| 1370 | pegasus->features = usb_dev_id[dev_index].private; |
| 1371 | get_interrupt_interval(pegasus); |
| 1372 | if (reset_mac(pegasus)) { |
| 1373 | dev_err(&intf->dev, "can't reset MAC\n"); |
| 1374 | res = -EIO; |
| 1375 | goto out2; |
| 1376 | } |
| 1377 | set_ethernet_addr(pegasus); |
| 1378 | fill_skb_pool(pegasus); |
| 1379 | if (pegasus->features & PEGASUS_II) { |
| 1380 | dev_info(&intf->dev, "setup Pegasus II specific registers\n"); |
| 1381 | setup_pegasus_II(pegasus); |
| 1382 | } |
| 1383 | pegasus->phy = mii_phy_probe(pegasus); |
| 1384 | if (pegasus->phy == 0xff) { |
| 1385 | dev_warn(&intf->dev, "can't locate MII phy, using default\n"); |
| 1386 | pegasus->phy = 1; |
| 1387 | } |
| 1388 | pegasus->mii.phy_id = pegasus->phy; |
| 1389 | usb_set_intfdata(intf, pegasus); |
| 1390 | SET_NETDEV_DEV(net, &intf->dev); |
| 1391 | pegasus_reset_wol(net); |
| 1392 | res = register_netdev(net); |
| 1393 | if (res) |
| 1394 | goto out3; |
| 1395 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, |
| 1396 | CARRIER_CHECK_DELAY); |
| 1397 | |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 1398 | dev_info(&intf->dev, "%s, %s, %pM\n", |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1399 | net->name, |
| 1400 | usb_dev_id[dev_index].name, |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 1401 | net->dev_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | return 0; |
| 1403 | |
| 1404 | out3: |
| 1405 | usb_set_intfdata(intf, NULL); |
| 1406 | free_skb_pool(pegasus); |
| 1407 | out2: |
| 1408 | free_all_urbs(pegasus); |
| 1409 | out1: |
| 1410 | free_netdev(net); |
| 1411 | out: |
| 1412 | usb_put_dev(dev); |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1413 | pegasus_dec_workqueue(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1414 | return res; |
| 1415 | } |
| 1416 | |
| 1417 | static void pegasus_disconnect(struct usb_interface *intf) |
| 1418 | { |
| 1419 | struct pegasus *pegasus = usb_get_intfdata(intf); |
| 1420 | |
| 1421 | usb_set_intfdata(intf, NULL); |
| 1422 | if (!pegasus) { |
| 1423 | dev_dbg(&intf->dev, "unregistering non-bound device?\n"); |
| 1424 | return; |
| 1425 | } |
| 1426 | |
| 1427 | pegasus->flags |= PEGASUS_UNPLUG; |
| 1428 | cancel_delayed_work(&pegasus->carrier_check); |
| 1429 | unregister_netdev(pegasus->net); |
| 1430 | usb_put_dev(interface_to_usbdev(intf)); |
Kevin Vigor | a85a46f | 2005-09-22 00:49:24 -0700 | [diff] [blame] | 1431 | unlink_all_urbs(pegasus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1432 | free_all_urbs(pegasus); |
| 1433 | free_skb_pool(pegasus); |
Arnaldo Carvalho de Melo | 4c13eb6 | 2007-04-25 17:40:23 -0700 | [diff] [blame] | 1434 | if (pegasus->rx_skb != NULL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1435 | dev_kfree_skb(pegasus->rx_skb); |
Arnaldo Carvalho de Melo | 4c13eb6 | 2007-04-25 17:40:23 -0700 | [diff] [blame] | 1436 | pegasus->rx_skb = NULL; |
| 1437 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1438 | free_netdev(pegasus->net); |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1439 | pegasus_dec_workqueue(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1440 | } |
| 1441 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1442 | static int pegasus_suspend(struct usb_interface *intf, pm_message_t message) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1443 | { |
| 1444 | struct pegasus *pegasus = usb_get_intfdata(intf); |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1445 | |
| 1446 | netif_device_detach(pegasus->net); |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 1447 | cancel_delayed_work(&pegasus->carrier_check); |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1448 | if (netif_running(pegasus->net)) { |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1449 | usb_kill_urb(pegasus->rx_urb); |
| 1450 | usb_kill_urb(pegasus->intr_urb); |
| 1451 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1452 | return 0; |
| 1453 | } |
| 1454 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1455 | static int pegasus_resume(struct usb_interface *intf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1456 | { |
| 1457 | struct pegasus *pegasus = usb_get_intfdata(intf); |
| 1458 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1459 | netif_device_attach(pegasus->net); |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1460 | if (netif_running(pegasus->net)) { |
| 1461 | pegasus->rx_urb->status = 0; |
| 1462 | pegasus->rx_urb->actual_length = 0; |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1463 | read_bulk_callback(pegasus->rx_urb); |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1464 | |
| 1465 | pegasus->intr_urb->status = 0; |
| 1466 | pegasus->intr_urb->actual_length = 0; |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1467 | intr_callback(pegasus->intr_urb); |
David Brownell | 27d72e8 | 2005-04-18 17:39:22 -0700 | [diff] [blame] | 1468 | } |
David Brownell | 7e713b8 | 2006-05-01 14:02:45 -0700 | [diff] [blame] | 1469 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, |
| 1470 | CARRIER_CHECK_DELAY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1471 | return 0; |
| 1472 | } |
| 1473 | |
Oliver Neukum | 8cb8957 | 2009-01-08 11:22:25 -0800 | [diff] [blame] | 1474 | static const struct net_device_ops pegasus_netdev_ops = { |
| 1475 | .ndo_open = pegasus_open, |
| 1476 | .ndo_stop = pegasus_close, |
| 1477 | .ndo_do_ioctl = pegasus_ioctl, |
| 1478 | .ndo_start_xmit = pegasus_start_xmit, |
Jiri Pirko | afc4b13 | 2011-08-16 06:29:01 +0000 | [diff] [blame] | 1479 | .ndo_set_rx_mode = pegasus_set_multicast, |
Oliver Neukum | 8cb8957 | 2009-01-08 11:22:25 -0800 | [diff] [blame] | 1480 | .ndo_get_stats = pegasus_netdev_stats, |
| 1481 | .ndo_tx_timeout = pegasus_tx_timeout, |
Ben Hutchings | 635ecaa | 2009-07-09 17:59:01 +0000 | [diff] [blame] | 1482 | .ndo_change_mtu = eth_change_mtu, |
Ben Hutchings | 240c102 | 2009-07-09 17:54:35 +0000 | [diff] [blame] | 1483 | .ndo_set_mac_address = eth_mac_addr, |
| 1484 | .ndo_validate_addr = eth_validate_addr, |
Oliver Neukum | 8cb8957 | 2009-01-08 11:22:25 -0800 | [diff] [blame] | 1485 | }; |
| 1486 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1487 | static struct usb_driver pegasus_driver = { |
| 1488 | .name = driver_name, |
| 1489 | .probe = pegasus_probe, |
| 1490 | .disconnect = pegasus_disconnect, |
| 1491 | .id_table = pegasus_ids, |
| 1492 | .suspend = pegasus_suspend, |
| 1493 | .resume = pegasus_resume, |
| 1494 | }; |
| 1495 | |
David Brownell | cda2836 | 2008-11-16 00:36:08 -0800 | [diff] [blame] | 1496 | static void __init parse_id(char *id) |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 1497 | { |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1498 | unsigned int vendor_id = 0, device_id = 0, flags = 0, i = 0; |
| 1499 | char *token, *name = NULL; |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 1500 | |
| 1501 | if ((token = strsep(&id, ":")) != NULL) |
| 1502 | name = token; |
| 1503 | /* name now points to a null terminated string*/ |
| 1504 | if ((token = strsep(&id, ":")) != NULL) |
| 1505 | vendor_id = simple_strtoul(token, NULL, 16); |
| 1506 | if ((token = strsep(&id, ":")) != NULL) |
| 1507 | device_id = simple_strtoul(token, NULL, 16); |
| 1508 | flags = simple_strtoul(id, NULL, 16); |
| 1509 | pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n", |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1510 | driver_name, name, vendor_id, device_id, flags); |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 1511 | |
| 1512 | if (vendor_id > 0x10000 || vendor_id == 0) |
| 1513 | return; |
| 1514 | if (device_id > 0x10000 || device_id == 0) |
| 1515 | return; |
| 1516 | |
Nicolas Kaiser | 5a9dbfe | 2010-06-26 06:58:54 +0000 | [diff] [blame] | 1517 | for (i = 0; usb_dev_id[i].name; i++); |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 1518 | usb_dev_id[i].name = name; |
| 1519 | usb_dev_id[i].vendor = vendor_id; |
| 1520 | usb_dev_id[i].device = device_id; |
| 1521 | usb_dev_id[i].private = flags; |
| 1522 | pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; |
| 1523 | pegasus_ids[i].idVendor = vendor_id; |
| 1524 | pegasus_ids[i].idProduct = device_id; |
| 1525 | } |
| 1526 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1527 | static int __init pegasus_init(void) |
| 1528 | { |
| 1529 | pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION); |
A.YOSHIYAMA | a4f81a6 | 2005-11-15 09:55:18 +0200 | [diff] [blame] | 1530 | if (devid) |
| 1531 | parse_id(devid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1532 | return usb_register(&pegasus_driver); |
| 1533 | } |
| 1534 | |
| 1535 | static void __exit pegasus_exit(void) |
| 1536 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1537 | usb_deregister(&pegasus_driver); |
| 1538 | } |
| 1539 | |
| 1540 | module_init(pegasus_init); |
| 1541 | module_exit(pegasus_exit); |