blob: 63e44e746cccaa540a54a4ecc882680673331830 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Petko Manolov323b3492013-04-25 22:41:50 +00002 * Copyright (c) 1999-2013 Petko Manolov (petkan@nucleusys.com)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 *
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 Kaiser5a9dbfe2010-06-26 06:58:54 +000024 * time as this seems to break dhcpd.
Linus Torvalds1da177e2005-04-16 15:20:36 -070025 * 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 Kaiser5a9dbfe2010-06-26 06:58:54 +000028 * is out of the interrupt routine.
Petko Manolov323b3492013-04-25 22:41:50 +000029 * ...
30 * v0.9.3 simplified [get|set]_register(s), async update registers
31 * logic revisited, receive skb_pool removed.
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 */
33
Linus Torvalds1da177e2005-04-16 15:20:36 -070034#include <linux/sched.h>
35#include <linux/slab.h>
36#include <linux/init.h>
37#include <linux/delay.h>
38#include <linux/netdevice.h>
39#include <linux/etherdevice.h>
40#include <linux/ethtool.h>
41#include <linux/mii.h>
42#include <linux/usb.h>
43#include <linux/module.h>
44#include <asm/byteorder.h>
Linus Torvalds7c0f6ba2016-12-24 11:46:01 -080045#include <linux/uaccess.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070046#include "pegasus.h"
47
48/*
49 * Version Information
50 */
Petko Manolov323b3492013-04-25 22:41:50 +000051#define DRIVER_VERSION "v0.9.3 (2013/04/25)"
52#define DRIVER_AUTHOR "Petko Manolov <petkan@nucleusys.com>"
Linus Torvalds1da177e2005-04-16 15:20:36 -070053#define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver"
54
55static const char driver_name[] = "pegasus";
56
57#undef PEGASUS_WRITE_EEPROM
58#define BMSR_MEDIA (BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | \
59 BMSR_100FULL | BMSR_ANEGCAPABLE)
60
Rusty Russelleb939922011-12-19 14:08:01 +000061static bool loopback;
62static bool mii_mode;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +000063static char *devid;
Linus Torvalds1da177e2005-04-16 15:20:36 -070064
65static struct usb_eth_dev usb_dev_id[] = {
66#define PEGASUS_DEV(pn, vid, pid, flags) \
67 {.name = pn, .vendor = vid, .device = pid, .private = flags},
Chris Rankinab854b22009-10-13 00:32:02 -070068#define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \
69 PEGASUS_DEV(pn, vid, pid, flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -070070#include "pegasus.h"
71#undef PEGASUS_DEV
Chris Rankinab854b22009-10-13 00:32:02 -070072#undef PEGASUS_DEV_CLASS
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +020073 {NULL, 0, 0, 0},
Linus Torvalds1da177e2005-04-16 15:20:36 -070074 {NULL, 0, 0, 0}
75};
76
77static struct usb_device_id pegasus_ids[] = {
78#define PEGASUS_DEV(pn, vid, pid, flags) \
79 {.match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = vid, .idProduct = pid},
Chris Rankinab854b22009-10-13 00:32:02 -070080/*
81 * The Belkin F8T012xx1 bluetooth adaptor has the same vendor and product
82 * IDs as the Belkin F5D5050, so we need to teach the pegasus driver to
83 * ignore adaptors belonging to the "Wireless" class 0xE0. For this one
84 * case anyway, seeing as the pegasus is for "Wired" adaptors.
85 */
86#define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \
87 {.match_flags = (USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_DEV_CLASS), \
88 .idVendor = vid, .idProduct = pid, .bDeviceClass = dclass},
Linus Torvalds1da177e2005-04-16 15:20:36 -070089#include "pegasus.h"
90#undef PEGASUS_DEV
Chris Rankinab854b22009-10-13 00:32:02 -070091#undef PEGASUS_DEV_CLASS
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +020092 {},
Linus Torvalds1da177e2005-04-16 15:20:36 -070093 {}
94};
95
96MODULE_AUTHOR(DRIVER_AUTHOR);
97MODULE_DESCRIPTION(DRIVER_DESC);
98MODULE_LICENSE("GPL");
99module_param(loopback, bool, 0);
100module_param(mii_mode, bool, 0);
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +0200101module_param(devid, charp, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)");
103MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0");
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +0200104MODULE_PARM_DESC(devid, "The format is: 'DEV_name:VendorID:DeviceID:Flags'");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105
106/* use ethtool to change the level for any given device */
107static int msg_level = -1;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000108module_param(msg_level, int, 0);
109MODULE_PARM_DESC(msg_level, "Override default message level");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110
111MODULE_DEVICE_TABLE(usb, pegasus_ids);
Oliver Neukum8cb89572009-01-08 11:22:25 -0800112static const struct net_device_ops pegasus_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113
Petko Manolov323b3492013-04-25 22:41:50 +0000114/*****/
115
116static void async_ctrl_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117{
Petko Manolov323b3492013-04-25 22:41:50 +0000118 struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
Oliver Neukumc94cb312008-12-18 23:00:59 -0800119 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120
Petko Manolov323b3492013-04-25 22:41:50 +0000121 if (status < 0)
122 dev_dbg(&urb->dev->dev, "%s failed with %d", __func__, status);
123 kfree(req);
124 usb_free_urb(urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125}
126
Petko Manolov323b3492013-04-25 22:41:50 +0000127static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128{
Ben Hutchings55935232017-02-04 16:56:03 +0000129 u8 *buf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130 int ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131
Ben Hutchings55935232017-02-04 16:56:03 +0000132 buf = kmalloc(size, GFP_NOIO);
133 if (!buf)
134 return -ENOMEM;
135
Petko Manolov323b3492013-04-25 22:41:50 +0000136 ret = usb_control_msg(pegasus->usb, usb_rcvctrlpipe(pegasus->usb, 0),
137 PEGASUS_REQ_GET_REGS, PEGASUS_REQT_READ, 0,
Ben Hutchings55935232017-02-04 16:56:03 +0000138 indx, buf, size, 1000);
Petko Manolov323b3492013-04-25 22:41:50 +0000139 if (ret < 0)
140 netif_dbg(pegasus, drv, pegasus->net,
141 "%s returned %d\n", __func__, ret);
Ben Hutchings55935232017-02-04 16:56:03 +0000142 else if (ret <= size)
143 memcpy(data, buf, ret);
144 kfree(buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145 return ret;
146}
147
Ben Hutchings55935232017-02-04 16:56:03 +0000148static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size,
149 const void *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150{
Ben Hutchings55935232017-02-04 16:56:03 +0000151 u8 *buf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152 int ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153
Ben Hutchings55935232017-02-04 16:56:03 +0000154 buf = kmemdup(data, size, GFP_NOIO);
155 if (!buf)
156 return -ENOMEM;
157
Petko Manolov323b3492013-04-25 22:41:50 +0000158 ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
159 PEGASUS_REQ_SET_REGS, PEGASUS_REQT_WRITE, 0,
Ben Hutchings55935232017-02-04 16:56:03 +0000160 indx, buf, size, 100);
Petko Manolov323b3492013-04-25 22:41:50 +0000161 if (ret < 0)
162 netif_dbg(pegasus, drv, pegasus->net,
163 "%s returned %d\n", __func__, ret);
Ben Hutchings55935232017-02-04 16:56:03 +0000164 kfree(buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165 return ret;
166}
167
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000168static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169{
Ben Hutchings55935232017-02-04 16:56:03 +0000170 u8 *buf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171 int ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172
Ben Hutchings55935232017-02-04 16:56:03 +0000173 buf = kmemdup(&data, 1, GFP_NOIO);
174 if (!buf)
175 return -ENOMEM;
176
Petko Manolov323b3492013-04-25 22:41:50 +0000177 ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
178 PEGASUS_REQ_SET_REG, PEGASUS_REQT_WRITE, data,
Ben Hutchings55935232017-02-04 16:56:03 +0000179 indx, buf, 1, 1000);
Petko Manolov323b3492013-04-25 22:41:50 +0000180 if (ret < 0)
181 netif_dbg(pegasus, drv, pegasus->net,
182 "%s returned %d\n", __func__, ret);
Ben Hutchings55935232017-02-04 16:56:03 +0000183 kfree(buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184 return ret;
185}
186
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000187static int update_eth_regs_async(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188{
Petko Manolov323b3492013-04-25 22:41:50 +0000189 int ret = -ENOMEM;
190 struct urb *async_urb;
191 struct usb_ctrlrequest *req;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192
Petko Manolov323b3492013-04-25 22:41:50 +0000193 req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
194 if (req == NULL)
195 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196
Petko Manolov323b3492013-04-25 22:41:50 +0000197 async_urb = usb_alloc_urb(0, GFP_ATOMIC);
198 if (async_urb == NULL) {
199 kfree(req);
200 return ret;
201 }
202 req->bRequestType = PEGASUS_REQT_WRITE;
203 req->bRequest = PEGASUS_REQ_SET_REGS;
204 req->wValue = cpu_to_le16(0);
205 req->wIndex = cpu_to_le16(EthCtrl0);
206 req->wLength = cpu_to_le16(3);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207
Petko Manolov323b3492013-04-25 22:41:50 +0000208 usb_fill_control_urb(async_urb, pegasus->usb,
209 usb_sndctrlpipe(pegasus->usb, 0), (void *)req,
210 pegasus->eth_regs, 3, async_ctrl_callback, req);
211
212 ret = usb_submit_urb(async_urb, GFP_ATOMIC);
213 if (ret) {
David Brownell955a2602006-05-26 10:17:03 -0700214 if (ret == -ENODEV)
215 netif_device_detach(pegasus->net);
Joe Perchesa475f602010-02-17 10:30:24 +0000216 netif_err(pegasus, drv, pegasus->net,
Petko Manolov323b3492013-04-25 22:41:50 +0000217 "%s returned %d\n", __func__, ret);
David Brownell955a2602006-05-26 10:17:03 -0700218 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219 return ret;
220}
221
Petko Manolov2bd64702013-04-25 22:41:36 +0000222static int __mii_op(pegasus_t *p, __u8 phy, __u8 indx, __u16 *regd, __u8 cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223{
224 int i;
225 __u8 data[4] = { phy, 0, 0, indx };
226 __le16 regdi;
Petko Manolov2bd64702013-04-25 22:41:36 +0000227 int ret = -ETIMEDOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228
Petko Manolov2bd64702013-04-25 22:41:36 +0000229 if (cmd & PHY_WRITE) {
230 __le16 *t = (__le16 *) & data[1];
231 *t = cpu_to_le16(*regd);
232 }
233 set_register(p, PhyCtrl, 0);
234 set_registers(p, PhyAddr, sizeof(data), data);
235 set_register(p, PhyCtrl, (indx | cmd));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236 for (i = 0; i < REG_TIMEOUT; i++) {
Petko Manolov2bd64702013-04-25 22:41:36 +0000237 ret = get_registers(p, PhyCtrl, 1, data);
238 if (ret < 0)
David Brownell7e713b82006-05-01 14:02:45 -0700239 goto fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240 if (data[0] & PHY_DONE)
241 break;
242 }
Joe Perchesa475f602010-02-17 10:30:24 +0000243 if (i >= REG_TIMEOUT)
244 goto fail;
Petko Manolov2bd64702013-04-25 22:41:36 +0000245 if (cmd & PHY_READ) {
246 ret = get_registers(p, PhyData, 2, &regdi);
247 *regd = le16_to_cpu(regdi);
248 return ret;
249 }
250 return 0;
David Brownell7e713b82006-05-01 14:02:45 -0700251fail:
Petko Manolov2bd64702013-04-25 22:41:36 +0000252 netif_dbg(p, drv, p->net, "%s failed\n", __func__);
Petko Manolov4a1728a2005-11-15 09:48:23 +0200253 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254}
255
Petko Manolov2bd64702013-04-25 22:41:36 +0000256/* Returns non-negative int on success, error on failure */
257static int read_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd)
258{
259 return __mii_op(pegasus, phy, indx, regd, PHY_READ);
260}
261
262/* Returns zero on success, error on failure */
263static int write_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd)
264{
265 return __mii_op(pegasus, phy, indx, regd, PHY_WRITE);
266}
267
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268static int mdio_read(struct net_device *dev, int phy_id, int loc)
269{
Joe Perches8739cfe2010-11-15 11:12:29 +0000270 pegasus_t *pegasus = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271 u16 res;
272
273 read_mii_word(pegasus, phy_id, loc, &res);
274 return (int)res;
275}
276
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277static void mdio_write(struct net_device *dev, int phy_id, int loc, int val)
278{
Joe Perches8739cfe2010-11-15 11:12:29 +0000279 pegasus_t *pegasus = netdev_priv(dev);
Dan Carpenter3d64fc72013-05-02 20:44:20 +0000280 u16 data = val;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281
Dan Carpenter3d64fc72013-05-02 20:44:20 +0000282 write_mii_word(pegasus, phy_id, loc, &data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283}
284
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000285static int read_eprom_word(pegasus_t *pegasus, __u8 index, __u16 *retdata)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286{
287 int i;
288 __u8 tmp;
289 __le16 retdatai;
290 int ret;
291
Petko Manolov4a1728a2005-11-15 09:48:23 +0200292 set_register(pegasus, EpromCtrl, 0);
293 set_register(pegasus, EpromOffset, index);
294 set_register(pegasus, EpromCtrl, EPROM_READ);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295
296 for (i = 0; i < REG_TIMEOUT; i++) {
297 ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
298 if (tmp & EPROM_DONE)
299 break;
David Brownell7e713b82006-05-01 14:02:45 -0700300 if (ret == -ESHUTDOWN)
301 goto fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302 }
Joe Perchesa475f602010-02-17 10:30:24 +0000303 if (i >= REG_TIMEOUT)
304 goto fail;
305
306 ret = get_registers(pegasus, EpromData, 2, &retdatai);
307 *retdata = le16_to_cpu(retdatai);
308 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309
David Brownell7e713b82006-05-01 14:02:45 -0700310fail:
Joe Perchesa475f602010-02-17 10:30:24 +0000311 netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__);
Petko Manolov4a1728a2005-11-15 09:48:23 +0200312 return -ETIMEDOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313}
314
315#ifdef PEGASUS_WRITE_EEPROM
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000316static inline void enable_eprom_write(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317{
318 __u8 tmp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319
Petko Manolov4a1728a2005-11-15 09:48:23 +0200320 get_registers(pegasus, EthCtrl2, 1, &tmp);
321 set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322}
323
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000324static inline void disable_eprom_write(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325{
326 __u8 tmp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327
Petko Manolov4a1728a2005-11-15 09:48:23 +0200328 get_registers(pegasus, EthCtrl2, 1, &tmp);
329 set_register(pegasus, EpromCtrl, 0);
330 set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331}
332
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000333static int write_eprom_word(pegasus_t *pegasus, __u8 index, __u16 data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334{
335 int i;
336 __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE };
337 int ret;
Michael Buesche3453f62009-06-18 07:03:47 +0000338 __le16 le_data = cpu_to_le16(data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339
Petko Manolov4a1728a2005-11-15 09:48:23 +0200340 set_registers(pegasus, EpromOffset, 4, d);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 enable_eprom_write(pegasus);
Petko Manolov4a1728a2005-11-15 09:48:23 +0200342 set_register(pegasus, EpromOffset, index);
Michael Buesche3453f62009-06-18 07:03:47 +0000343 set_registers(pegasus, EpromData, 2, &le_data);
Petko Manolov4a1728a2005-11-15 09:48:23 +0200344 set_register(pegasus, EpromCtrl, EPROM_WRITE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345
346 for (i = 0; i < REG_TIMEOUT; i++) {
347 ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
David Brownell7e713b82006-05-01 14:02:45 -0700348 if (ret == -ESHUTDOWN)
349 goto fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 if (tmp & EPROM_DONE)
351 break;
352 }
353 disable_eprom_write(pegasus);
Joe Perchesa475f602010-02-17 10:30:24 +0000354 if (i >= REG_TIMEOUT)
355 goto fail;
356
357 return ret;
358
David Brownell7e713b82006-05-01 14:02:45 -0700359fail:
Joe Perchesa475f602010-02-17 10:30:24 +0000360 netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__);
Petko Manolov4a1728a2005-11-15 09:48:23 +0200361 return -ETIMEDOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362}
363#endif /* PEGASUS_WRITE_EEPROM */
364
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000365static inline void get_node_id(pegasus_t *pegasus, __u8 *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366{
367 int i;
368 __u16 w16;
369
370 for (i = 0; i < 3; i++) {
371 read_eprom_word(pegasus, i, &w16);
Harvey Harrisonda2bbdc2008-10-29 14:25:51 -0700372 ((__le16 *) id)[i] = cpu_to_le16(w16);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373 }
374}
375
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000376static void set_ethernet_addr(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377{
378 __u8 node_id[6];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379
Petko Manolov37cf3472006-09-27 14:25:37 -0700380 if (pegasus->features & PEGASUS_II) {
381 get_registers(pegasus, 0x10, sizeof(node_id), node_id);
382 } else {
383 get_node_id(pegasus, node_id);
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000384 set_registers(pegasus, EthID, sizeof(node_id), node_id);
Petko Manolov37cf3472006-09-27 14:25:37 -0700385 }
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000386 memcpy(pegasus->net->dev_addr, node_id, sizeof(node_id));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387}
388
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000389static inline int reset_mac(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390{
391 __u8 data = 0x8;
392 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393
Petko Manolov4a1728a2005-11-15 09:48:23 +0200394 set_register(pegasus, EthCtrl1, data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395 for (i = 0; i < REG_TIMEOUT; i++) {
Petko Manolov4a1728a2005-11-15 09:48:23 +0200396 get_registers(pegasus, EthCtrl1, 1, &data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397 if (~data & 0x08) {
Dan Carpenter681f1622011-12-23 00:44:36 +0000398 if (loopback)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 break;
400 if (mii_mode && (pegasus->features & HAS_HOME_PNA))
Petko Manolov4a1728a2005-11-15 09:48:23 +0200401 set_register(pegasus, Gpio1, 0x34);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 else
Petko Manolov4a1728a2005-11-15 09:48:23 +0200403 set_register(pegasus, Gpio1, 0x26);
404 set_register(pegasus, Gpio0, pegasus->features);
405 set_register(pegasus, Gpio0, DEFAULT_GPIO_SET);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406 break;
407 }
408 }
409 if (i == REG_TIMEOUT)
Petko Manolov4a1728a2005-11-15 09:48:23 +0200410 return -ETIMEDOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411
412 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
413 usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
Petko Manolov4a1728a2005-11-15 09:48:23 +0200414 set_register(pegasus, Gpio0, 0x24);
415 set_register(pegasus, Gpio0, 0x26);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416 }
417 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) {
418 __u16 auxmode;
419 read_mii_word(pegasus, 3, 0x1b, &auxmode);
Petko Manolov2bd64702013-04-25 22:41:36 +0000420 auxmode |= 4;
421 write_mii_word(pegasus, 3, 0x1b, &auxmode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422 }
423
424 return 0;
425}
426
427static int enable_net_traffic(struct net_device *dev, struct usb_device *usb)
428{
429 __u16 linkpart;
430 __u8 data[4];
431 pegasus_t *pegasus = netdev_priv(dev);
432 int ret;
433
434 read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart);
Petko Manolov1a8deec2016-04-27 14:24:50 +0300435 data[0] = 0xc8; /* TX & RX enable, append status, no CRC */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436 data[1] = 0;
437 if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL))
438 data[1] |= 0x20; /* set full duplex */
439 if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF))
440 data[1] |= 0x10; /* set 100 Mbps */
441 if (mii_mode)
442 data[1] = 0;
Dan Carpenter681f1622011-12-23 00:44:36 +0000443 data[2] = loopback ? 0x09 : 0x01;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000445 memcpy(pegasus->eth_regs, data, sizeof(data));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446 ret = set_registers(pegasus, EthCtrl0, 3, data);
447
448 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
Malte Doersamefafe6f2006-01-28 17:48:33 +0100449 usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450 usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
451 u16 auxmode;
452 read_mii_word(pegasus, 0, 0x1b, &auxmode);
Petko Manolov2bd64702013-04-25 22:41:36 +0000453 auxmode |= 4;
454 write_mii_word(pegasus, 0, 0x1b, &auxmode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455 }
456
Petko Manolov4a1728a2005-11-15 09:48:23 +0200457 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458}
459
David Howells7d12e782006-10-05 14:55:46 +0100460static void read_bulk_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461{
462 pegasus_t *pegasus = urb->context;
463 struct net_device *net;
464 int rx_status, count = urb->actual_length;
Oliver Neukumc94cb312008-12-18 23:00:59 -0800465 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466 u8 *buf = urb->transfer_buffer;
467 __u16 pkt_len;
468
469 if (!pegasus)
470 return;
471
472 net = pegasus->net;
473 if (!netif_device_present(net) || !netif_running(net))
474 return;
475
Oliver Neukumc94cb312008-12-18 23:00:59 -0800476 switch (status) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477 case 0:
478 break;
Pete Zaitcev38e2bfc2006-09-18 22:49:02 -0700479 case -ETIME:
Joe Perchesa475f602010-02-17 10:30:24 +0000480 netif_dbg(pegasus, rx_err, net, "reset MAC\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481 pegasus->flags &= ~PEGASUS_RX_BUSY;
482 break;
483 case -EPIPE: /* stall, or disconnect from TT */
484 /* FIXME schedule work to clear the halt */
Joe Perchesa475f602010-02-17 10:30:24 +0000485 netif_warn(pegasus, rx_err, net, "no rx stall recovery\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486 return;
487 case -ENOENT:
488 case -ECONNRESET:
489 case -ESHUTDOWN:
Joe Perchesa475f602010-02-17 10:30:24 +0000490 netif_dbg(pegasus, ifdown, net, "rx unlink, %d\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 return;
492 default:
Joe Perchesa475f602010-02-17 10:30:24 +0000493 netif_dbg(pegasus, rx_err, net, "RX status %d\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494 goto goon;
495 }
496
xypron.glpk@gmx.debbf178e2016-05-18 20:40:51 +0200497 if (count < 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498 goto goon;
499
500 rx_status = buf[count - 2];
501 if (rx_status & 0x1e) {
Joe Perchesa475f602010-02-17 10:30:24 +0000502 netif_dbg(pegasus, rx_err, net,
503 "RX packet error %x\n", rx_status);
Tobias Klauser82d82932017-04-07 10:17:39 +0200504 net->stats.rx_errors++;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000505 if (rx_status & 0x06) /* long or runt */
Tobias Klauser82d82932017-04-07 10:17:39 +0200506 net->stats.rx_length_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507 if (rx_status & 0x08)
Tobias Klauser82d82932017-04-07 10:17:39 +0200508 net->stats.rx_crc_errors++;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000509 if (rx_status & 0x10) /* extra bits */
Tobias Klauser82d82932017-04-07 10:17:39 +0200510 net->stats.rx_frame_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511 goto goon;
512 }
513 if (pegasus->chip == 0x8513) {
514 pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer);
515 pkt_len &= 0x0fff;
516 pegasus->rx_skb->data += 2;
517 } else {
518 pkt_len = buf[count - 3] << 8;
519 pkt_len += buf[count - 4];
520 pkt_len &= 0xfff;
Petko Manolov1a8deec2016-04-27 14:24:50 +0300521 pkt_len -= 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522 }
523
524 /*
Kevin Vigora85a46f2005-09-22 00:49:24 -0700525 * If the packet is unreasonably long, quietly drop it rather than
526 * kernel panicing by calling skb_put.
527 */
528 if (pkt_len > PEGASUS_MTU)
529 goto goon;
530
531 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700532 * at this point we are sure pegasus->rx_skb != NULL
533 * so we go ahead and pass up the packet.
534 */
535 skb_put(pegasus->rx_skb, pkt_len);
536 pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net);
537 netif_rx(pegasus->rx_skb);
Tobias Klauser82d82932017-04-07 10:17:39 +0200538 net->stats.rx_packets++;
539 net->stats.rx_bytes += pkt_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540
541 if (pegasus->flags & PEGASUS_UNPLUG)
542 return;
543
Petko Manolov313a58e2013-04-25 22:41:21 +0000544 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, PEGASUS_MTU,
545 GFP_ATOMIC);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546
547 if (pegasus->rx_skb == NULL)
548 goto tl_sched;
549goon:
550 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
551 usb_rcvbulkpipe(pegasus->usb, 1),
Petko Manolovb7302ca2016-04-27 14:24:49 +0300552 pegasus->rx_skb->data, PEGASUS_MTU,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553 read_bulk_callback, pegasus);
David Brownell955a2602006-05-26 10:17:03 -0700554 rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
555 if (rx_status == -ENODEV)
556 netif_device_detach(pegasus->net);
557 else if (rx_status) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700558 pegasus->flags |= PEGASUS_RX_URB_FAIL;
559 goto tl_sched;
560 } else {
561 pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
562 }
563
564 return;
565
566tl_sched:
567 tasklet_schedule(&pegasus->rx_tl);
568}
569
570static void rx_fixup(unsigned long data)
571{
572 pegasus_t *pegasus;
David Brownell955a2602006-05-26 10:17:03 -0700573 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574
575 pegasus = (pegasus_t *) data;
576 if (pegasus->flags & PEGASUS_UNPLUG)
577 return;
578
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579 if (pegasus->flags & PEGASUS_RX_URB_FAIL)
580 if (pegasus->rx_skb)
581 goto try_again;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000582 if (pegasus->rx_skb == NULL)
Petko Manolov313a58e2013-04-25 22:41:21 +0000583 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net,
584 PEGASUS_MTU,
585 GFP_ATOMIC);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586 if (pegasus->rx_skb == NULL) {
Joe Perchesa475f602010-02-17 10:30:24 +0000587 netif_warn(pegasus, rx_err, pegasus->net, "low on memory\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588 tasklet_schedule(&pegasus->rx_tl);
Petko Manolov313a58e2013-04-25 22:41:21 +0000589 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590 }
591 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
592 usb_rcvbulkpipe(pegasus->usb, 1),
Petko Manolovb7302ca2016-04-27 14:24:49 +0300593 pegasus->rx_skb->data, PEGASUS_MTU,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594 read_bulk_callback, pegasus);
595try_again:
David Brownell955a2602006-05-26 10:17:03 -0700596 status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
597 if (status == -ENODEV)
598 netif_device_detach(pegasus->net);
599 else if (status) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600 pegasus->flags |= PEGASUS_RX_URB_FAIL;
601 tasklet_schedule(&pegasus->rx_tl);
602 } else {
603 pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
604 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700605}
606
David Howells7d12e782006-10-05 14:55:46 +0100607static void write_bulk_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608{
609 pegasus_t *pegasus = urb->context;
Micah Gruber93519822007-07-23 16:05:52 +0800610 struct net_device *net;
Oliver Neukumc94cb312008-12-18 23:00:59 -0800611 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700612
613 if (!pegasus)
614 return;
615
Micah Gruber93519822007-07-23 16:05:52 +0800616 net = pegasus->net;
617
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618 if (!netif_device_present(net) || !netif_running(net))
619 return;
620
Oliver Neukumc94cb312008-12-18 23:00:59 -0800621 switch (status) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622 case -EPIPE:
623 /* FIXME schedule_work() to clear the tx halt */
624 netif_stop_queue(net);
Joe Perchesa475f602010-02-17 10:30:24 +0000625 netif_warn(pegasus, tx_err, net, "no tx stall recovery\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700626 return;
627 case -ENOENT:
628 case -ECONNRESET:
629 case -ESHUTDOWN:
Joe Perchesa475f602010-02-17 10:30:24 +0000630 netif_dbg(pegasus, ifdown, net, "tx unlink, %d\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631 return;
632 default:
Joe Perchesa475f602010-02-17 10:30:24 +0000633 netif_info(pegasus, tx_err, net, "TX status %d\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700634 /* FALL THROUGH */
635 case 0:
636 break;
637 }
638
Florian Westphal860e9532016-05-03 16:33:13 +0200639 netif_trans_update(net); /* prevent tx timeout */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640 netif_wake_queue(net);
641}
642
David Howells7d12e782006-10-05 14:55:46 +0100643static void intr_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644{
645 pegasus_t *pegasus = urb->context;
646 struct net_device *net;
Oliver Neukumc94cb312008-12-18 23:00:59 -0800647 int res, status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648
649 if (!pegasus)
650 return;
651 net = pegasus->net;
652
Oliver Neukumc94cb312008-12-18 23:00:59 -0800653 switch (status) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654 case 0:
655 break;
656 case -ECONNRESET: /* unlink */
657 case -ENOENT:
658 case -ESHUTDOWN:
659 return;
660 default:
661 /* some Pegasus-I products report LOTS of data
662 * toggle errors... avoid log spamming
663 */
Joe Perchesa475f602010-02-17 10:30:24 +0000664 netif_dbg(pegasus, timer, net, "intr status %d\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665 }
666
667 if (urb->actual_length >= 6) {
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000668 u8 *d = urb->transfer_buffer;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669
670 /* byte 0 == tx_status1, reg 2B */
671 if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL
672 |LATE_COL|JABBER_TIMEOUT)) {
Tobias Klauser82d82932017-04-07 10:17:39 +0200673 net->stats.tx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674 if (d[0] & TX_UNDERRUN)
Tobias Klauser82d82932017-04-07 10:17:39 +0200675 net->stats.tx_fifo_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676 if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT))
Tobias Klauser82d82932017-04-07 10:17:39 +0200677 net->stats.tx_aborted_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678 if (d[0] & LATE_COL)
Tobias Klauser82d82932017-04-07 10:17:39 +0200679 net->stats.tx_window_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680 }
681
682 /* d[5].LINK_STATUS lies on some adapters.
683 * d[0].NO_CARRIER kicks in only with failed TX.
684 * ... so monitoring with MII may be safest.
685 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686
687 /* bytes 3-4 == rx_lostpkt, reg 2E/2F */
Tobias Klauser82d82932017-04-07 10:17:39 +0200688 net->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689 }
690
Oliver Neukumc94cb312008-12-18 23:00:59 -0800691 res = usb_submit_urb(urb, GFP_ATOMIC);
692 if (res == -ENODEV)
David Brownell955a2602006-05-26 10:17:03 -0700693 netif_device_detach(pegasus->net);
Joe Perchesa475f602010-02-17 10:30:24 +0000694 if (res)
695 netif_err(pegasus, timer, net,
696 "can't resubmit interrupt urb, %d\n", res);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697}
698
699static void pegasus_tx_timeout(struct net_device *net)
700{
701 pegasus_t *pegasus = netdev_priv(net);
Joe Perchesa475f602010-02-17 10:30:24 +0000702 netif_warn(pegasus, timer, net, "tx timeout\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703 usb_unlink_urb(pegasus->tx_urb);
Tobias Klauser82d82932017-04-07 10:17:39 +0200704 net->stats.tx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705}
706
Stephen Hemminger25a79c42009-08-31 19:50:45 +0000707static netdev_tx_t pegasus_start_xmit(struct sk_buff *skb,
708 struct net_device *net)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700709{
710 pegasus_t *pegasus = netdev_priv(net);
711 int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3;
712 int res;
713 __u16 l16 = skb->len;
714
715 netif_stop_queue(net);
716
717 ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16);
Arnaldo Carvalho de Melod626f622007-03-27 18:55:52 -0300718 skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719 usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb,
720 usb_sndbulkpipe(pegasus->usb, 2),
721 pegasus->tx_buff, count,
722 write_bulk_callback, pegasus);
723 if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) {
Joe Perchesa475f602010-02-17 10:30:24 +0000724 netif_warn(pegasus, tx_err, net, "fail tx, %d\n", res);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725 switch (res) {
726 case -EPIPE: /* stall, or disconnect from TT */
727 /* cleanup should already have been scheduled */
728 break;
729 case -ENODEV: /* disconnect() upcoming */
Oliver Neukum9dd014e2009-04-17 01:40:19 -0700730 case -EPERM:
David Brownell955a2602006-05-26 10:17:03 -0700731 netif_device_detach(pegasus->net);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732 break;
733 default:
Tobias Klauser82d82932017-04-07 10:17:39 +0200734 net->stats.tx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735 netif_start_queue(net);
736 }
737 } else {
Tobias Klauser82d82932017-04-07 10:17:39 +0200738 net->stats.tx_packets++;
739 net->stats.tx_bytes += skb->len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740 }
741 dev_kfree_skb(skb);
742
Patrick McHardy6ed10652009-06-23 06:03:08 +0000743 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744}
745
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000746static inline void disable_net_traffic(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747{
Michael Buesche3453f62009-06-18 07:03:47 +0000748 __le16 tmp = cpu_to_le16(0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749
Michael Buesche3453f62009-06-18 07:03:47 +0000750 set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751}
752
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000753static inline void get_interrupt_interval(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754{
Michael Buesche3453f62009-06-18 07:03:47 +0000755 u16 data;
756 u8 interval;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700757
Michael Buesche3453f62009-06-18 07:03:47 +0000758 read_eprom_word(pegasus, 4, &data);
759 interval = data >> 8;
Kevin Vigora85a46f2005-09-22 00:49:24 -0700760 if (pegasus->usb->speed != USB_SPEED_HIGH) {
Michael Buesche3453f62009-06-18 07:03:47 +0000761 if (interval < 0x80) {
Joe Perchesa475f602010-02-17 10:30:24 +0000762 netif_info(pegasus, timer, pegasus->net,
763 "intr interval changed from %ums to %ums\n",
764 interval, 0x80);
Michael Buesche3453f62009-06-18 07:03:47 +0000765 interval = 0x80;
766 data = (data & 0x00FF) | ((u16)interval << 8);
Kevin Vigora85a46f2005-09-22 00:49:24 -0700767#ifdef PEGASUS_WRITE_EEPROM
Michael Buesche3453f62009-06-18 07:03:47 +0000768 write_eprom_word(pegasus, 4, data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700769#endif
Kevin Vigora85a46f2005-09-22 00:49:24 -0700770 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771 }
Michael Buesche3453f62009-06-18 07:03:47 +0000772 pegasus->intr_interval = interval;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773}
774
775static void set_carrier(struct net_device *net)
776{
777 pegasus_t *pegasus = netdev_priv(net);
778 u16 tmp;
779
Dan Williamsc43c49b2007-04-24 10:20:06 -0400780 if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781 return;
Kevin Vigora85a46f2005-09-22 00:49:24 -0700782
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783 if (tmp & BMSR_LSTATUS)
784 netif_carrier_on(net);
785 else
786 netif_carrier_off(net);
787}
788
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000789static void free_all_urbs(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790{
791 usb_free_urb(pegasus->intr_urb);
792 usb_free_urb(pegasus->tx_urb);
793 usb_free_urb(pegasus->rx_urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700794}
795
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000796static void unlink_all_urbs(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797{
798 usb_kill_urb(pegasus->intr_urb);
799 usb_kill_urb(pegasus->tx_urb);
800 usb_kill_urb(pegasus->rx_urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801}
802
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000803static int alloc_urbs(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700804{
Petko Manolov323b3492013-04-25 22:41:50 +0000805 int res = -ENOMEM;
806
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807 pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
808 if (!pegasus->rx_urb) {
Petko Manolov323b3492013-04-25 22:41:50 +0000809 return res;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700810 }
811 pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
812 if (!pegasus->tx_urb) {
813 usb_free_urb(pegasus->rx_urb);
Petko Manolov323b3492013-04-25 22:41:50 +0000814 return res;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700815 }
816 pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
817 if (!pegasus->intr_urb) {
818 usb_free_urb(pegasus->tx_urb);
819 usb_free_urb(pegasus->rx_urb);
Petko Manolov323b3492013-04-25 22:41:50 +0000820 return res;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700821 }
822
Petko Manolov323b3492013-04-25 22:41:50 +0000823 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700824}
825
826static int pegasus_open(struct net_device *net)
827{
828 pegasus_t *pegasus = netdev_priv(net);
Petko Manolov323b3492013-04-25 22:41:50 +0000829 int res=-ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700830
831 if (pegasus->rx_skb == NULL)
Petko Manolov313a58e2013-04-25 22:41:21 +0000832 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net,
833 PEGASUS_MTU,
834 GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835 if (!pegasus->rx_skb)
Petko Manolov323b3492013-04-25 22:41:50 +0000836 goto exit;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700837
838 res = set_registers(pegasus, EthID, 6, net->dev_addr);
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000839
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
841 usb_rcvbulkpipe(pegasus->usb, 1),
Petko Manolovb7302ca2016-04-27 14:24:49 +0300842 pegasus->rx_skb->data, PEGASUS_MTU,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843 read_bulk_callback, pegasus);
844 if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) {
David Brownell955a2602006-05-26 10:17:03 -0700845 if (res == -ENODEV)
846 netif_device_detach(pegasus->net);
Joe Perchesa475f602010-02-17 10:30:24 +0000847 netif_dbg(pegasus, ifup, net, "failed rx_urb, %d\n", res);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848 goto exit;
849 }
850
851 usb_fill_int_urb(pegasus->intr_urb, pegasus->usb,
852 usb_rcvintpipe(pegasus->usb, 3),
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000853 pegasus->intr_buff, sizeof(pegasus->intr_buff),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854 intr_callback, pegasus, pegasus->intr_interval);
855 if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) {
David Brownell955a2602006-05-26 10:17:03 -0700856 if (res == -ENODEV)
857 netif_device_detach(pegasus->net);
Joe Perchesa475f602010-02-17 10:30:24 +0000858 netif_dbg(pegasus, ifup, net, "failed intr_urb, %d\n", res);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700859 usb_kill_urb(pegasus->rx_urb);
860 goto exit;
861 }
Petko Manolov323b3492013-04-25 22:41:50 +0000862 res = enable_net_traffic(net, pegasus->usb);
863 if (res < 0) {
Joe Perchesa475f602010-02-17 10:30:24 +0000864 netif_dbg(pegasus, ifup, net,
865 "can't enable_net_traffic() - %d\n", res);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866 res = -EIO;
867 usb_kill_urb(pegasus->rx_urb);
868 usb_kill_urb(pegasus->intr_urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869 goto exit;
870 }
871 set_carrier(net);
872 netif_start_queue(net);
Joe Perchesa475f602010-02-17 10:30:24 +0000873 netif_dbg(pegasus, ifup, net, "open\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874 res = 0;
875exit:
876 return res;
877}
878
879static int pegasus_close(struct net_device *net)
880{
881 pegasus_t *pegasus = netdev_priv(net);
882
883 netif_stop_queue(net);
884 if (!(pegasus->flags & PEGASUS_UNPLUG))
885 disable_net_traffic(pegasus);
886 tasklet_kill(&pegasus->rx_tl);
887 unlink_all_urbs(pegasus);
888
889 return 0;
890}
891
892static void pegasus_get_drvinfo(struct net_device *dev,
893 struct ethtool_drvinfo *info)
894{
895 pegasus_t *pegasus = netdev_priv(dev);
Jiri Pirko7826d432013-01-06 00:44:26 +0000896
897 strlcpy(info->driver, driver_name, sizeof(info->driver));
898 strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000899 usb_make_path(pegasus->usb, info->bus_info, sizeof(info->bus_info));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900}
901
902/* also handles three patterns of some kind in hardware */
903#define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY)
904
905static void
906pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
907{
908 pegasus_t *pegasus = netdev_priv(dev);
909
910 wol->supported = WAKE_MAGIC | WAKE_PHY;
911 wol->wolopts = pegasus->wolopts;
912}
913
914static int
915pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
916{
917 pegasus_t *pegasus = netdev_priv(dev);
918 u8 reg78 = 0x04;
Ming Lei4fbc5b22013-01-19 01:32:01 +0000919 int ret;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000920
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921 if (wol->wolopts & ~WOL_SUPPORTED)
922 return -EINVAL;
923
924 if (wol->wolopts & WAKE_MAGIC)
925 reg78 |= 0x80;
926 if (wol->wolopts & WAKE_PHY)
927 reg78 |= 0x40;
928 /* FIXME this 0x10 bit still needs to get set in the chip... */
929 if (wol->wolopts)
930 pegasus->eth_regs[0] |= 0x10;
931 else
932 pegasus->eth_regs[0] &= ~0x10;
933 pegasus->wolopts = wol->wolopts;
Ming Lei4fbc5b22013-01-19 01:32:01 +0000934
935 ret = set_register(pegasus, WakeupControl, reg78);
936 if (!ret)
937 ret = device_set_wakeup_enable(&pegasus->usb->dev,
938 wol->wolopts);
939 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940}
941
942static inline void pegasus_reset_wol(struct net_device *dev)
943{
944 struct ethtool_wolinfo wol;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000945
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946 memset(&wol, 0, sizeof wol);
947 (void) pegasus_set_wol(dev, &wol);
948}
949
950static int
Philippe Reynes71dbc3412017-03-17 23:34:04 +0100951pegasus_get_link_ksettings(struct net_device *dev,
952 struct ethtool_link_ksettings *ecmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700953{
954 pegasus_t *pegasus;
955
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956 pegasus = netdev_priv(dev);
Philippe Reynes71dbc3412017-03-17 23:34:04 +0100957 mii_ethtool_get_link_ksettings(&pegasus->mii, ecmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958 return 0;
959}
960
961static int
Philippe Reynes71dbc3412017-03-17 23:34:04 +0100962pegasus_set_link_ksettings(struct net_device *dev,
963 const struct ethtool_link_ksettings *ecmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964{
965 pegasus_t *pegasus = netdev_priv(dev);
Philippe Reynes71dbc3412017-03-17 23:34:04 +0100966 return mii_ethtool_set_link_ksettings(&pegasus->mii, ecmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967}
968
969static int pegasus_nway_reset(struct net_device *dev)
970{
971 pegasus_t *pegasus = netdev_priv(dev);
972 return mii_nway_restart(&pegasus->mii);
973}
974
975static u32 pegasus_get_link(struct net_device *dev)
976{
977 pegasus_t *pegasus = netdev_priv(dev);
978 return mii_link_ok(&pegasus->mii);
979}
980
981static u32 pegasus_get_msglevel(struct net_device *dev)
982{
983 pegasus_t *pegasus = netdev_priv(dev);
984 return pegasus->msg_enable;
985}
986
987static void pegasus_set_msglevel(struct net_device *dev, u32 v)
988{
989 pegasus_t *pegasus = netdev_priv(dev);
990 pegasus->msg_enable = v;
991}
992
Stephen Hemminger0fc0b732009-09-02 01:03:33 -0700993static const struct ethtool_ops ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994 .get_drvinfo = pegasus_get_drvinfo,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700995 .nway_reset = pegasus_nway_reset,
996 .get_link = pegasus_get_link,
997 .get_msglevel = pegasus_get_msglevel,
998 .set_msglevel = pegasus_set_msglevel,
999 .get_wol = pegasus_get_wol,
1000 .set_wol = pegasus_set_wol,
Philippe Reynes71dbc3412017-03-17 23:34:04 +01001001 .get_link_ksettings = pegasus_get_link_ksettings,
1002 .set_link_ksettings = pegasus_set_link_ksettings,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003};
1004
1005static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
1006{
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001007 __u16 *data = (__u16 *) &rq->ifr_ifru;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008 pegasus_t *pegasus = netdev_priv(net);
1009 int res;
1010
1011 switch (cmd) {
1012 case SIOCDEVPRIVATE:
1013 data[0] = pegasus->phy;
Gustavo A. R. Silva209d6e72019-02-08 13:07:29 -06001014 /* fall through */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015 case SIOCDEVPRIVATE + 1:
1016 read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]);
1017 res = 0;
1018 break;
1019 case SIOCDEVPRIVATE + 2:
1020 if (!capable(CAP_NET_ADMIN))
1021 return -EPERM;
Petko Manolov2bd64702013-04-25 22:41:36 +00001022 write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, &data[2]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001023 res = 0;
1024 break;
1025 default:
1026 res = -EOPNOTSUPP;
1027 }
1028 return res;
1029}
1030
1031static void pegasus_set_multicast(struct net_device *net)
1032{
1033 pegasus_t *pegasus = netdev_priv(net);
1034
1035 if (net->flags & IFF_PROMISC) {
1036 pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS;
Joe Perchesa475f602010-02-17 10:30:24 +00001037 netif_info(pegasus, link, net, "Promiscuous mode enabled\n");
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00001038 } else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039 pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST;
1040 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
Joe Perchesa475f602010-02-17 10:30:24 +00001041 netif_dbg(pegasus, link, net, "set allmulti\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042 } else {
1043 pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST;
1044 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
1045 }
Petko Manolov323b3492013-04-25 22:41:50 +00001046 update_eth_regs_async(pegasus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047}
1048
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001049static __u8 mii_phy_probe(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050{
1051 int i;
1052 __u16 tmp;
1053
1054 for (i = 0; i < 32; i++) {
1055 read_mii_word(pegasus, i, MII_BMSR, &tmp);
1056 if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0)
1057 continue;
1058 else
1059 return i;
1060 }
1061
1062 return 0xff;
1063}
1064
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001065static inline void setup_pegasus_II(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066{
1067 __u8 data = 0xa5;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001068
Petko Manolov4a1728a2005-11-15 09:48:23 +02001069 set_register(pegasus, Reg1d, 0);
1070 set_register(pegasus, Reg7b, 1);
Jia-Ju Bai6dff5ad2018-07-27 16:36:29 +08001071 msleep(100);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072 if ((pegasus->features & HAS_HOME_PNA) && mii_mode)
Petko Manolov4a1728a2005-11-15 09:48:23 +02001073 set_register(pegasus, Reg7b, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074 else
Petko Manolov4a1728a2005-11-15 09:48:23 +02001075 set_register(pegasus, Reg7b, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076
Petko Manolov4a1728a2005-11-15 09:48:23 +02001077 set_register(pegasus, 0x83, data);
1078 get_registers(pegasus, 0x83, 1, &data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001080 if (data == 0xa5)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081 pegasus->chip = 0x8513;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001082 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083 pegasus->chip = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001084
Petko Manolov4a1728a2005-11-15 09:48:23 +02001085 set_register(pegasus, 0x80, 0xc0);
1086 set_register(pegasus, 0x83, 0xff);
1087 set_register(pegasus, 0x84, 0x01);
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001088
Linus Torvalds1da177e2005-04-16 15:20:36 -07001089 if (pegasus->features & HAS_HOME_PNA && mii_mode)
Petko Manolov4a1728a2005-11-15 09:48:23 +02001090 set_register(pegasus, Reg81, 6);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001091 else
Petko Manolov4a1728a2005-11-15 09:48:23 +02001092 set_register(pegasus, Reg81, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001093}
1094
1095
David Brownellcda28362008-11-16 00:36:08 -08001096static int pegasus_count;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001097static struct workqueue_struct *pegasus_workqueue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001098#define CARRIER_CHECK_DELAY (2 * HZ)
1099
David Howellsc4028952006-11-22 14:57:56 +00001100static void check_carrier(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101{
David Howellsc4028952006-11-22 14:57:56 +00001102 pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001103 set_carrier(pegasus->net);
1104 if (!(pegasus->flags & PEGASUS_UNPLUG)) {
1105 queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
1106 CARRIER_CHECK_DELAY);
1107 }
1108}
1109
Ben Collins4f631352008-07-30 12:39:02 -07001110static int pegasus_blacklisted(struct usb_device *udev)
1111{
1112 struct usb_device_descriptor *udd = &udev->descriptor;
1113
1114 /* Special quirk to keep the driver from handling the Belkin Bluetooth
1115 * dongle which happens to have the same ID.
1116 */
Michael Buesche3453f62009-06-18 07:03:47 +00001117 if ((udd->idVendor == cpu_to_le16(VENDOR_BELKIN)) &&
1118 (udd->idProduct == cpu_to_le16(0x0121)) &&
Ben Collins4f631352008-07-30 12:39:02 -07001119 (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) &&
1120 (udd->bDeviceProtocol == 1))
1121 return 1;
1122
1123 return 0;
1124}
1125
David Brownellcda28362008-11-16 00:36:08 -08001126/* we rely on probe() and remove() being serialized so we
1127 * don't need extra locking on pegasus_count.
1128 */
1129static void pegasus_dec_workqueue(void)
1130{
1131 pegasus_count--;
1132 if (pegasus_count == 0) {
1133 destroy_workqueue(pegasus_workqueue);
1134 pegasus_workqueue = NULL;
1135 }
1136}
1137
Linus Torvalds1da177e2005-04-16 15:20:36 -07001138static int pegasus_probe(struct usb_interface *intf,
1139 const struct usb_device_id *id)
1140{
1141 struct usb_device *dev = interface_to_usbdev(intf);
1142 struct net_device *net;
1143 pegasus_t *pegasus;
1144 int dev_index = id - pegasus_ids;
1145 int res = -ENOMEM;
1146
David Brownellcda28362008-11-16 00:36:08 -08001147 if (pegasus_blacklisted(dev))
1148 return -ENODEV;
Ben Collins4f631352008-07-30 12:39:02 -07001149
David Brownellcda28362008-11-16 00:36:08 -08001150 if (pegasus_count == 0) {
Bhaktipriya Shridhar95ac3992016-08-30 22:02:47 +05301151 pegasus_workqueue = alloc_workqueue("pegasus", WQ_MEM_RECLAIM,
1152 0);
David Brownellcda28362008-11-16 00:36:08 -08001153 if (!pegasus_workqueue)
1154 return -ENOMEM;
Ben Collins4f631352008-07-30 12:39:02 -07001155 }
David Brownellcda28362008-11-16 00:36:08 -08001156 pegasus_count++;
1157
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158 net = alloc_etherdev(sizeof(struct pegasus));
Joe Perches41de8d42012-01-29 13:47:52 +00001159 if (!net)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001160 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001161
1162 pegasus = netdev_priv(net);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001163 pegasus->dev_index = dev_index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001164
Petko Manolov323b3492013-04-25 22:41:50 +00001165 res = alloc_urbs(pegasus);
1166 if (res < 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001167 dev_err(&intf->dev, "can't allocate %s\n", "urbs");
1168 goto out1;
1169 }
1170
1171 tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus);
1172
David Howellsc4028952006-11-22 14:57:56 +00001173 INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001174
1175 pegasus->intf = intf;
1176 pegasus->usb = dev;
1177 pegasus->net = net;
Oliver Neukum8cb89572009-01-08 11:22:25 -08001178
1179
Linus Torvalds1da177e2005-04-16 15:20:36 -07001180 net->watchdog_timeo = PEGASUS_TX_TIMEOUT;
Oliver Neukum8cb89572009-01-08 11:22:25 -08001181 net->netdev_ops = &pegasus_netdev_ops;
Wilfried Klaebe7ad24ea2014-05-11 00:12:32 +00001182 net->ethtool_ops = &ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001183 pegasus->mii.dev = net;
1184 pegasus->mii.mdio_read = mdio_read;
1185 pegasus->mii.mdio_write = mdio_write;
1186 pegasus->mii.phy_id_mask = 0x1f;
1187 pegasus->mii.reg_num_mask = 0x1f;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001188 pegasus->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189 | NETIF_MSG_PROBE | NETIF_MSG_LINK);
1190
1191 pegasus->features = usb_dev_id[dev_index].private;
1192 get_interrupt_interval(pegasus);
1193 if (reset_mac(pegasus)) {
1194 dev_err(&intf->dev, "can't reset MAC\n");
1195 res = -EIO;
1196 goto out2;
1197 }
1198 set_ethernet_addr(pegasus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001199 if (pegasus->features & PEGASUS_II) {
1200 dev_info(&intf->dev, "setup Pegasus II specific registers\n");
1201 setup_pegasus_II(pegasus);
1202 }
1203 pegasus->phy = mii_phy_probe(pegasus);
1204 if (pegasus->phy == 0xff) {
1205 dev_warn(&intf->dev, "can't locate MII phy, using default\n");
1206 pegasus->phy = 1;
1207 }
1208 pegasus->mii.phy_id = pegasus->phy;
1209 usb_set_intfdata(intf, pegasus);
1210 SET_NETDEV_DEV(net, &intf->dev);
1211 pegasus_reset_wol(net);
1212 res = register_netdev(net);
1213 if (res)
1214 goto out3;
1215 queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
Petko Manolov323b3492013-04-25 22:41:50 +00001216 CARRIER_CHECK_DELAY);
1217 dev_info(&intf->dev, "%s, %s, %pM\n", net->name,
1218 usb_dev_id[dev_index].name, net->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001219 return 0;
1220
1221out3:
1222 usb_set_intfdata(intf, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001223out2:
1224 free_all_urbs(pegasus);
1225out1:
1226 free_netdev(net);
1227out:
David Brownellcda28362008-11-16 00:36:08 -08001228 pegasus_dec_workqueue();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229 return res;
1230}
1231
1232static void pegasus_disconnect(struct usb_interface *intf)
1233{
1234 struct pegasus *pegasus = usb_get_intfdata(intf);
1235
1236 usb_set_intfdata(intf, NULL);
1237 if (!pegasus) {
1238 dev_dbg(&intf->dev, "unregistering non-bound device?\n");
1239 return;
1240 }
1241
1242 pegasus->flags |= PEGASUS_UNPLUG;
1243 cancel_delayed_work(&pegasus->carrier_check);
1244 unregister_netdev(pegasus->net);
Kevin Vigora85a46f2005-09-22 00:49:24 -07001245 unlink_all_urbs(pegasus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001246 free_all_urbs(pegasus);
Arnaldo Carvalho de Melo4c13eb62007-04-25 17:40:23 -07001247 if (pegasus->rx_skb != NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248 dev_kfree_skb(pegasus->rx_skb);
Arnaldo Carvalho de Melo4c13eb62007-04-25 17:40:23 -07001249 pegasus->rx_skb = NULL;
1250 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251 free_netdev(pegasus->net);
David Brownellcda28362008-11-16 00:36:08 -08001252 pegasus_dec_workqueue();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001253}
1254
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001255static int pegasus_suspend(struct usb_interface *intf, pm_message_t message)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256{
1257 struct pegasus *pegasus = usb_get_intfdata(intf);
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001258
1259 netif_device_detach(pegasus->net);
David Brownell7e713b82006-05-01 14:02:45 -07001260 cancel_delayed_work(&pegasus->carrier_check);
David Brownell27d72e82005-04-18 17:39:22 -07001261 if (netif_running(pegasus->net)) {
David Brownell27d72e82005-04-18 17:39:22 -07001262 usb_kill_urb(pegasus->rx_urb);
1263 usb_kill_urb(pegasus->intr_urb);
1264 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265 return 0;
1266}
1267
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001268static int pegasus_resume(struct usb_interface *intf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269{
1270 struct pegasus *pegasus = usb_get_intfdata(intf);
1271
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001272 netif_device_attach(pegasus->net);
David Brownell27d72e82005-04-18 17:39:22 -07001273 if (netif_running(pegasus->net)) {
1274 pegasus->rx_urb->status = 0;
1275 pegasus->rx_urb->actual_length = 0;
David Howells7d12e782006-10-05 14:55:46 +01001276 read_bulk_callback(pegasus->rx_urb);
David Brownell27d72e82005-04-18 17:39:22 -07001277
1278 pegasus->intr_urb->status = 0;
1279 pegasus->intr_urb->actual_length = 0;
David Howells7d12e782006-10-05 14:55:46 +01001280 intr_callback(pegasus->intr_urb);
David Brownell27d72e82005-04-18 17:39:22 -07001281 }
David Brownell7e713b82006-05-01 14:02:45 -07001282 queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
1283 CARRIER_CHECK_DELAY);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001284 return 0;
1285}
1286
Oliver Neukum8cb89572009-01-08 11:22:25 -08001287static const struct net_device_ops pegasus_netdev_ops = {
1288 .ndo_open = pegasus_open,
1289 .ndo_stop = pegasus_close,
1290 .ndo_do_ioctl = pegasus_ioctl,
1291 .ndo_start_xmit = pegasus_start_xmit,
Jiri Pirkoafc4b132011-08-16 06:29:01 +00001292 .ndo_set_rx_mode = pegasus_set_multicast,
Oliver Neukum8cb89572009-01-08 11:22:25 -08001293 .ndo_tx_timeout = pegasus_tx_timeout,
Ben Hutchings240c1022009-07-09 17:54:35 +00001294 .ndo_set_mac_address = eth_mac_addr,
1295 .ndo_validate_addr = eth_validate_addr,
Oliver Neukum8cb89572009-01-08 11:22:25 -08001296};
1297
Linus Torvalds1da177e2005-04-16 15:20:36 -07001298static struct usb_driver pegasus_driver = {
1299 .name = driver_name,
1300 .probe = pegasus_probe,
1301 .disconnect = pegasus_disconnect,
1302 .id_table = pegasus_ids,
1303 .suspend = pegasus_suspend,
1304 .resume = pegasus_resume,
Sarah Sharpe1f12eb2012-04-23 10:08:51 -07001305 .disable_hub_initiated_lpm = 1,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306};
1307
David Brownellcda28362008-11-16 00:36:08 -08001308static void __init parse_id(char *id)
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +02001309{
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001310 unsigned int vendor_id = 0, device_id = 0, flags = 0, i = 0;
1311 char *token, *name = NULL;
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +02001312
1313 if ((token = strsep(&id, ":")) != NULL)
1314 name = token;
1315 /* name now points to a null terminated string*/
1316 if ((token = strsep(&id, ":")) != NULL)
1317 vendor_id = simple_strtoul(token, NULL, 16);
1318 if ((token = strsep(&id, ":")) != NULL)
1319 device_id = simple_strtoul(token, NULL, 16);
1320 flags = simple_strtoul(id, NULL, 16);
1321 pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n",
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001322 driver_name, name, vendor_id, device_id, flags);
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +02001323
1324 if (vendor_id > 0x10000 || vendor_id == 0)
1325 return;
1326 if (device_id > 0x10000 || device_id == 0)
1327 return;
1328
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001329 for (i = 0; usb_dev_id[i].name; i++);
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +02001330 usb_dev_id[i].name = name;
1331 usb_dev_id[i].vendor = vendor_id;
1332 usb_dev_id[i].device = device_id;
1333 usb_dev_id[i].private = flags;
1334 pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
1335 pegasus_ids[i].idVendor = vendor_id;
1336 pegasus_ids[i].idProduct = device_id;
1337}
1338
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339static int __init pegasus_init(void)
1340{
1341 pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION);
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +02001342 if (devid)
1343 parse_id(devid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344 return usb_register(&pegasus_driver);
1345}
1346
1347static void __exit pegasus_exit(void)
1348{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001349 usb_deregister(&pegasus_driver);
1350}
1351
1352module_init(pegasus_init);
1353module_exit(pegasus_exit);