blob: 6d25dea5ad4b2a956c7c0e4772e64c100c5bd5b1 [file] [log] [blame]
Thomas Gleixnerd2912cb2019-06-04 10:11:33 +02001// SPDX-License-Identifier: GPL-2.0-only
Linus Torvalds1da177e2005-04-16 15:20:36 -07002/*
Petko Manolov323b3492013-04-25 22:41:50 +00003 * Copyright (c) 1999-2013 Petko Manolov (petkan@nucleusys.com)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 * ChangeLog:
6 * .... Most of the time spent on reading sources & docs.
7 * v0.2.x First official release for the Linux kernel.
8 * v0.3.0 Beutified and structured, some bugs fixed.
9 * v0.3.x URBifying bulk requests and bugfixing. First relatively
10 * stable release. Still can touch device's registers only
11 * from top-halves.
12 * v0.4.0 Control messages remained unurbified are now URBs.
13 * Now we can touch the HW at any time.
14 * v0.4.9 Control urbs again use process context to wait. Argh...
15 * Some long standing bugs (enable_net_traffic) fixed.
16 * Also nasty trick about resubmiting control urb from
17 * interrupt context used. Please let me know how it
18 * behaves. Pegasus II support added since this version.
19 * TODO: suppressing HCD warnings spewage on disconnect.
20 * v0.4.13 Ethernet address is now set at probe(), not at open()
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +000021 * time as this seems to break dhcpd.
Linus Torvalds1da177e2005-04-16 15:20:36 -070022 * v0.5.0 branch to 2.5.x kernels
23 * v0.5.1 ethtool support added
24 * v0.5.5 rx socket buffers are in a pool and the their allocation
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +000025 * is out of the interrupt routine.
Petko Manolov323b3492013-04-25 22:41:50 +000026 * ...
27 * v0.9.3 simplified [get|set]_register(s), async update registers
28 * logic revisited, receive skb_pool removed.
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 */
30
Linus Torvalds1da177e2005-04-16 15:20:36 -070031#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>
Linus Torvalds7c0f6ba2016-12-24 11:46:01 -080042#include <linux/uaccess.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070043#include "pegasus.h"
44
45/*
46 * Version Information
47 */
Petko Manolov323b3492013-04-25 22:41:50 +000048#define DRIVER_VERSION "v0.9.3 (2013/04/25)"
49#define DRIVER_AUTHOR "Petko Manolov <petkan@nucleusys.com>"
Linus Torvalds1da177e2005-04-16 15:20:36 -070050#define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver"
51
52static 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
Rusty Russelleb939922011-12-19 14:08:01 +000058static bool loopback;
59static bool mii_mode;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +000060static char *devid;
Linus Torvalds1da177e2005-04-16 15:20:36 -070061
62static 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 Rankinab854b22009-10-13 00:32:02 -070065#define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \
66 PEGASUS_DEV(pn, vid, pid, flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -070067#include "pegasus.h"
68#undef PEGASUS_DEV
Chris Rankinab854b22009-10-13 00:32:02 -070069#undef PEGASUS_DEV_CLASS
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +020070 {NULL, 0, 0, 0},
Linus Torvalds1da177e2005-04-16 15:20:36 -070071 {NULL, 0, 0, 0}
72};
73
74static 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 Rankinab854b22009-10-13 00:32:02 -070077/*
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 Torvalds1da177e2005-04-16 15:20:36 -070086#include "pegasus.h"
87#undef PEGASUS_DEV
Chris Rankinab854b22009-10-13 00:32:02 -070088#undef PEGASUS_DEV_CLASS
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +020089 {},
Linus Torvalds1da177e2005-04-16 15:20:36 -070090 {}
91};
92
93MODULE_AUTHOR(DRIVER_AUTHOR);
94MODULE_DESCRIPTION(DRIVER_DESC);
95MODULE_LICENSE("GPL");
96module_param(loopback, bool, 0);
97module_param(mii_mode, bool, 0);
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +020098module_param(devid, charp, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -070099MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)");
100MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0");
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +0200101MODULE_PARM_DESC(devid, "The format is: 'DEV_name:VendorID:DeviceID:Flags'");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102
103/* use ethtool to change the level for any given device */
104static int msg_level = -1;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000105module_param(msg_level, int, 0);
106MODULE_PARM_DESC(msg_level, "Override default message level");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107
108MODULE_DEVICE_TABLE(usb, pegasus_ids);
Oliver Neukum8cb89572009-01-08 11:22:25 -0800109static const struct net_device_ops pegasus_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110
Petko Manolov323b3492013-04-25 22:41:50 +0000111/*****/
112
113static void async_ctrl_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114{
Petko Manolov323b3492013-04-25 22:41:50 +0000115 struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
Oliver Neukumc94cb312008-12-18 23:00:59 -0800116 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117
Petko Manolov323b3492013-04-25 22:41:50 +0000118 if (status < 0)
119 dev_dbg(&urb->dev->dev, "%s failed with %d", __func__, status);
120 kfree(req);
121 usb_free_urb(urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122}
123
Petko Manolov323b3492013-04-25 22:41:50 +0000124static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125{
Ben Hutchings55935232017-02-04 16:56:03 +0000126 u8 *buf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127 int ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128
Ben Hutchings55935232017-02-04 16:56:03 +0000129 buf = kmalloc(size, GFP_NOIO);
130 if (!buf)
131 return -ENOMEM;
132
Petko Manolov323b3492013-04-25 22:41:50 +0000133 ret = usb_control_msg(pegasus->usb, usb_rcvctrlpipe(pegasus->usb, 0),
134 PEGASUS_REQ_GET_REGS, PEGASUS_REQT_READ, 0,
Ben Hutchings55935232017-02-04 16:56:03 +0000135 indx, buf, size, 1000);
Petko Manolov323b3492013-04-25 22:41:50 +0000136 if (ret < 0)
137 netif_dbg(pegasus, drv, pegasus->net,
138 "%s returned %d\n", __func__, ret);
Ben Hutchings55935232017-02-04 16:56:03 +0000139 else if (ret <= size)
140 memcpy(data, buf, ret);
141 kfree(buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142 return ret;
143}
144
Ben Hutchings55935232017-02-04 16:56:03 +0000145static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size,
146 const void *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147{
Ben Hutchings55935232017-02-04 16:56:03 +0000148 u8 *buf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 int ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150
Ben Hutchings55935232017-02-04 16:56:03 +0000151 buf = kmemdup(data, size, GFP_NOIO);
152 if (!buf)
153 return -ENOMEM;
154
Petko Manolov323b3492013-04-25 22:41:50 +0000155 ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
156 PEGASUS_REQ_SET_REGS, PEGASUS_REQT_WRITE, 0,
Ben Hutchings55935232017-02-04 16:56:03 +0000157 indx, buf, size, 100);
Petko Manolov323b3492013-04-25 22:41:50 +0000158 if (ret < 0)
159 netif_dbg(pegasus, drv, pegasus->net,
160 "%s returned %d\n", __func__, ret);
Ben Hutchings55935232017-02-04 16:56:03 +0000161 kfree(buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162 return ret;
163}
164
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000165static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166{
Ben Hutchings55935232017-02-04 16:56:03 +0000167 u8 *buf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168 int ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169
Ben Hutchings55935232017-02-04 16:56:03 +0000170 buf = kmemdup(&data, 1, GFP_NOIO);
171 if (!buf)
172 return -ENOMEM;
173
Petko Manolov323b3492013-04-25 22:41:50 +0000174 ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
175 PEGASUS_REQ_SET_REG, PEGASUS_REQT_WRITE, data,
Ben Hutchings55935232017-02-04 16:56:03 +0000176 indx, buf, 1, 1000);
Petko Manolov323b3492013-04-25 22:41:50 +0000177 if (ret < 0)
178 netif_dbg(pegasus, drv, pegasus->net,
179 "%s returned %d\n", __func__, ret);
Ben Hutchings55935232017-02-04 16:56:03 +0000180 kfree(buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181 return ret;
182}
183
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000184static int update_eth_regs_async(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185{
Petko Manolov323b3492013-04-25 22:41:50 +0000186 int ret = -ENOMEM;
187 struct urb *async_urb;
188 struct usb_ctrlrequest *req;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189
Petko Manolov323b3492013-04-25 22:41:50 +0000190 req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
191 if (req == NULL)
192 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193
Petko Manolov323b3492013-04-25 22:41:50 +0000194 async_urb = usb_alloc_urb(0, GFP_ATOMIC);
195 if (async_urb == NULL) {
196 kfree(req);
197 return ret;
198 }
199 req->bRequestType = PEGASUS_REQT_WRITE;
200 req->bRequest = PEGASUS_REQ_SET_REGS;
201 req->wValue = cpu_to_le16(0);
202 req->wIndex = cpu_to_le16(EthCtrl0);
203 req->wLength = cpu_to_le16(3);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204
Petko Manolov323b3492013-04-25 22:41:50 +0000205 usb_fill_control_urb(async_urb, pegasus->usb,
206 usb_sndctrlpipe(pegasus->usb, 0), (void *)req,
207 pegasus->eth_regs, 3, async_ctrl_callback, req);
208
209 ret = usb_submit_urb(async_urb, GFP_ATOMIC);
210 if (ret) {
David Brownell955a2602006-05-26 10:17:03 -0700211 if (ret == -ENODEV)
212 netif_device_detach(pegasus->net);
Joe Perchesa475f602010-02-17 10:30:24 +0000213 netif_err(pegasus, drv, pegasus->net,
Petko Manolov323b3492013-04-25 22:41:50 +0000214 "%s returned %d\n", __func__, ret);
David Brownell955a2602006-05-26 10:17:03 -0700215 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216 return ret;
217}
218
Petko Manolov2bd64702013-04-25 22:41:36 +0000219static int __mii_op(pegasus_t *p, __u8 phy, __u8 indx, __u16 *regd, __u8 cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220{
221 int i;
222 __u8 data[4] = { phy, 0, 0, indx };
223 __le16 regdi;
Petko Manolov2bd64702013-04-25 22:41:36 +0000224 int ret = -ETIMEDOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225
Petko Manolov2bd64702013-04-25 22:41:36 +0000226 if (cmd & PHY_WRITE) {
227 __le16 *t = (__le16 *) & data[1];
228 *t = cpu_to_le16(*regd);
229 }
230 set_register(p, PhyCtrl, 0);
231 set_registers(p, PhyAddr, sizeof(data), data);
232 set_register(p, PhyCtrl, (indx | cmd));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233 for (i = 0; i < REG_TIMEOUT; i++) {
Petko Manolov2bd64702013-04-25 22:41:36 +0000234 ret = get_registers(p, PhyCtrl, 1, data);
235 if (ret < 0)
David Brownell7e713b82006-05-01 14:02:45 -0700236 goto fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237 if (data[0] & PHY_DONE)
238 break;
239 }
Joe Perchesa475f602010-02-17 10:30:24 +0000240 if (i >= REG_TIMEOUT)
241 goto fail;
Petko Manolov2bd64702013-04-25 22:41:36 +0000242 if (cmd & PHY_READ) {
243 ret = get_registers(p, PhyData, 2, &regdi);
244 *regd = le16_to_cpu(regdi);
245 return ret;
246 }
247 return 0;
David Brownell7e713b82006-05-01 14:02:45 -0700248fail:
Petko Manolov2bd64702013-04-25 22:41:36 +0000249 netif_dbg(p, drv, p->net, "%s failed\n", __func__);
Petko Manolov4a1728a2005-11-15 09:48:23 +0200250 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251}
252
Petko Manolov2bd64702013-04-25 22:41:36 +0000253/* Returns non-negative int on success, error on failure */
254static int read_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd)
255{
256 return __mii_op(pegasus, phy, indx, regd, PHY_READ);
257}
258
259/* Returns zero on success, error on failure */
260static int write_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd)
261{
262 return __mii_op(pegasus, phy, indx, regd, PHY_WRITE);
263}
264
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265static int mdio_read(struct net_device *dev, int phy_id, int loc)
266{
Joe Perches8739cfe2010-11-15 11:12:29 +0000267 pegasus_t *pegasus = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268 u16 res;
269
270 read_mii_word(pegasus, phy_id, loc, &res);
271 return (int)res;
272}
273
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274static void mdio_write(struct net_device *dev, int phy_id, int loc, int val)
275{
Joe Perches8739cfe2010-11-15 11:12:29 +0000276 pegasus_t *pegasus = netdev_priv(dev);
Dan Carpenter3d64fc72013-05-02 20:44:20 +0000277 u16 data = val;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278
Dan Carpenter3d64fc72013-05-02 20:44:20 +0000279 write_mii_word(pegasus, phy_id, loc, &data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280}
281
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000282static int read_eprom_word(pegasus_t *pegasus, __u8 index, __u16 *retdata)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283{
284 int i;
285 __u8 tmp;
286 __le16 retdatai;
287 int ret;
288
Petko Manolov4a1728a2005-11-15 09:48:23 +0200289 set_register(pegasus, EpromCtrl, 0);
290 set_register(pegasus, EpromOffset, index);
291 set_register(pegasus, EpromCtrl, EPROM_READ);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292
293 for (i = 0; i < REG_TIMEOUT; i++) {
294 ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
295 if (tmp & EPROM_DONE)
296 break;
David Brownell7e713b82006-05-01 14:02:45 -0700297 if (ret == -ESHUTDOWN)
298 goto fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299 }
Joe Perchesa475f602010-02-17 10:30:24 +0000300 if (i >= REG_TIMEOUT)
301 goto fail;
302
303 ret = get_registers(pegasus, EpromData, 2, &retdatai);
304 *retdata = le16_to_cpu(retdatai);
305 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306
David Brownell7e713b82006-05-01 14:02:45 -0700307fail:
Joe Perchesa475f602010-02-17 10:30:24 +0000308 netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__);
Petko Manolov4a1728a2005-11-15 09:48:23 +0200309 return -ETIMEDOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310}
311
312#ifdef PEGASUS_WRITE_EEPROM
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000313static inline void enable_eprom_write(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314{
315 __u8 tmp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316
Petko Manolov4a1728a2005-11-15 09:48:23 +0200317 get_registers(pegasus, EthCtrl2, 1, &tmp);
318 set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319}
320
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000321static inline void disable_eprom_write(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322{
323 __u8 tmp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324
Petko Manolov4a1728a2005-11-15 09:48:23 +0200325 get_registers(pegasus, EthCtrl2, 1, &tmp);
326 set_register(pegasus, EpromCtrl, 0);
327 set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328}
329
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000330static int write_eprom_word(pegasus_t *pegasus, __u8 index, __u16 data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331{
332 int i;
333 __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE };
334 int ret;
Michael Buesche3453f62009-06-18 07:03:47 +0000335 __le16 le_data = cpu_to_le16(data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336
Petko Manolov4a1728a2005-11-15 09:48:23 +0200337 set_registers(pegasus, EpromOffset, 4, d);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338 enable_eprom_write(pegasus);
Petko Manolov4a1728a2005-11-15 09:48:23 +0200339 set_register(pegasus, EpromOffset, index);
Michael Buesche3453f62009-06-18 07:03:47 +0000340 set_registers(pegasus, EpromData, 2, &le_data);
Petko Manolov4a1728a2005-11-15 09:48:23 +0200341 set_register(pegasus, EpromCtrl, EPROM_WRITE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342
343 for (i = 0; i < REG_TIMEOUT; i++) {
344 ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
David Brownell7e713b82006-05-01 14:02:45 -0700345 if (ret == -ESHUTDOWN)
346 goto fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347 if (tmp & EPROM_DONE)
348 break;
349 }
350 disable_eprom_write(pegasus);
Joe Perchesa475f602010-02-17 10:30:24 +0000351 if (i >= REG_TIMEOUT)
352 goto fail;
353
354 return ret;
355
David Brownell7e713b82006-05-01 14:02:45 -0700356fail:
Joe Perchesa475f602010-02-17 10:30:24 +0000357 netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__);
Petko Manolov4a1728a2005-11-15 09:48:23 +0200358 return -ETIMEDOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359}
360#endif /* PEGASUS_WRITE_EEPROM */
361
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000362static inline void get_node_id(pegasus_t *pegasus, __u8 *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363{
364 int i;
365 __u16 w16;
366
367 for (i = 0; i < 3; i++) {
368 read_eprom_word(pegasus, i, &w16);
Harvey Harrisonda2bbdc2008-10-29 14:25:51 -0700369 ((__le16 *) id)[i] = cpu_to_le16(w16);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370 }
371}
372
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000373static void set_ethernet_addr(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374{
375 __u8 node_id[6];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376
Petko Manolov37cf3472006-09-27 14:25:37 -0700377 if (pegasus->features & PEGASUS_II) {
378 get_registers(pegasus, 0x10, sizeof(node_id), node_id);
379 } else {
380 get_node_id(pegasus, node_id);
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000381 set_registers(pegasus, EthID, sizeof(node_id), node_id);
Petko Manolov37cf3472006-09-27 14:25:37 -0700382 }
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000383 memcpy(pegasus->net->dev_addr, node_id, sizeof(node_id));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384}
385
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000386static inline int reset_mac(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387{
388 __u8 data = 0x8;
389 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390
Petko Manolov4a1728a2005-11-15 09:48:23 +0200391 set_register(pegasus, EthCtrl1, data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392 for (i = 0; i < REG_TIMEOUT; i++) {
Petko Manolov4a1728a2005-11-15 09:48:23 +0200393 get_registers(pegasus, EthCtrl1, 1, &data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394 if (~data & 0x08) {
Dan Carpenter681f1622011-12-23 00:44:36 +0000395 if (loopback)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396 break;
397 if (mii_mode && (pegasus->features & HAS_HOME_PNA))
Petko Manolov4a1728a2005-11-15 09:48:23 +0200398 set_register(pegasus, Gpio1, 0x34);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 else
Petko Manolov4a1728a2005-11-15 09:48:23 +0200400 set_register(pegasus, Gpio1, 0x26);
401 set_register(pegasus, Gpio0, pegasus->features);
402 set_register(pegasus, Gpio0, DEFAULT_GPIO_SET);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403 break;
404 }
405 }
406 if (i == REG_TIMEOUT)
Petko Manolov4a1728a2005-11-15 09:48:23 +0200407 return -ETIMEDOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408
409 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
410 usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
Petko Manolov4a1728a2005-11-15 09:48:23 +0200411 set_register(pegasus, Gpio0, 0x24);
412 set_register(pegasus, Gpio0, 0x26);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 }
414 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) {
415 __u16 auxmode;
416 read_mii_word(pegasus, 3, 0x1b, &auxmode);
Petko Manolov2bd64702013-04-25 22:41:36 +0000417 auxmode |= 4;
418 write_mii_word(pegasus, 3, 0x1b, &auxmode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419 }
420
421 return 0;
422}
423
424static int enable_net_traffic(struct net_device *dev, struct usb_device *usb)
425{
426 __u16 linkpart;
427 __u8 data[4];
428 pegasus_t *pegasus = netdev_priv(dev);
429 int ret;
430
431 read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart);
Petko Manolov1a8deec2016-04-27 14:24:50 +0300432 data[0] = 0xc8; /* TX & RX enable, append status, no CRC */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433 data[1] = 0;
434 if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL))
435 data[1] |= 0x20; /* set full duplex */
436 if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF))
437 data[1] |= 0x10; /* set 100 Mbps */
438 if (mii_mode)
439 data[1] = 0;
Dan Carpenter681f1622011-12-23 00:44:36 +0000440 data[2] = loopback ? 0x09 : 0x01;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000442 memcpy(pegasus->eth_regs, data, sizeof(data));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443 ret = set_registers(pegasus, EthCtrl0, 3, data);
444
445 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
Malte Doersamefafe6f2006-01-28 17:48:33 +0100446 usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447 usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
448 u16 auxmode;
449 read_mii_word(pegasus, 0, 0x1b, &auxmode);
Petko Manolov2bd64702013-04-25 22:41:36 +0000450 auxmode |= 4;
451 write_mii_word(pegasus, 0, 0x1b, &auxmode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452 }
453
Petko Manolov4a1728a2005-11-15 09:48:23 +0200454 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455}
456
David Howells7d12e782006-10-05 14:55:46 +0100457static void read_bulk_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458{
459 pegasus_t *pegasus = urb->context;
460 struct net_device *net;
461 int rx_status, count = urb->actual_length;
Oliver Neukumc94cb312008-12-18 23:00:59 -0800462 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463 u8 *buf = urb->transfer_buffer;
464 __u16 pkt_len;
465
466 if (!pegasus)
467 return;
468
469 net = pegasus->net;
470 if (!netif_device_present(net) || !netif_running(net))
471 return;
472
Oliver Neukumc94cb312008-12-18 23:00:59 -0800473 switch (status) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 case 0:
475 break;
Pete Zaitcev38e2bfc2006-09-18 22:49:02 -0700476 case -ETIME:
Joe Perchesa475f602010-02-17 10:30:24 +0000477 netif_dbg(pegasus, rx_err, net, "reset MAC\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478 pegasus->flags &= ~PEGASUS_RX_BUSY;
479 break;
480 case -EPIPE: /* stall, or disconnect from TT */
481 /* FIXME schedule work to clear the halt */
Joe Perchesa475f602010-02-17 10:30:24 +0000482 netif_warn(pegasus, rx_err, net, "no rx stall recovery\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483 return;
484 case -ENOENT:
485 case -ECONNRESET:
486 case -ESHUTDOWN:
Joe Perchesa475f602010-02-17 10:30:24 +0000487 netif_dbg(pegasus, ifdown, net, "rx unlink, %d\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488 return;
489 default:
Joe Perchesa475f602010-02-17 10:30:24 +0000490 netif_dbg(pegasus, rx_err, net, "RX status %d\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 goto goon;
492 }
493
xypron.glpk@gmx.debbf178e2016-05-18 20:40:51 +0200494 if (count < 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495 goto goon;
496
497 rx_status = buf[count - 2];
498 if (rx_status & 0x1e) {
Joe Perchesa475f602010-02-17 10:30:24 +0000499 netif_dbg(pegasus, rx_err, net,
500 "RX packet error %x\n", rx_status);
Tobias Klauser82d82932017-04-07 10:17:39 +0200501 net->stats.rx_errors++;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000502 if (rx_status & 0x06) /* long or runt */
Tobias Klauser82d82932017-04-07 10:17:39 +0200503 net->stats.rx_length_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700504 if (rx_status & 0x08)
Tobias Klauser82d82932017-04-07 10:17:39 +0200505 net->stats.rx_crc_errors++;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000506 if (rx_status & 0x10) /* extra bits */
Tobias Klauser82d82932017-04-07 10:17:39 +0200507 net->stats.rx_frame_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508 goto goon;
509 }
510 if (pegasus->chip == 0x8513) {
511 pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer);
512 pkt_len &= 0x0fff;
513 pegasus->rx_skb->data += 2;
514 } else {
515 pkt_len = buf[count - 3] << 8;
516 pkt_len += buf[count - 4];
517 pkt_len &= 0xfff;
Petko Manolov1a8deec2016-04-27 14:24:50 +0300518 pkt_len -= 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519 }
520
521 /*
Kevin Vigora85a46f2005-09-22 00:49:24 -0700522 * If the packet is unreasonably long, quietly drop it rather than
523 * kernel panicing by calling skb_put.
524 */
525 if (pkt_len > PEGASUS_MTU)
526 goto goon;
527
528 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529 * at this point we are sure pegasus->rx_skb != NULL
530 * so we go ahead and pass up the packet.
531 */
532 skb_put(pegasus->rx_skb, pkt_len);
533 pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net);
534 netif_rx(pegasus->rx_skb);
Tobias Klauser82d82932017-04-07 10:17:39 +0200535 net->stats.rx_packets++;
536 net->stats.rx_bytes += pkt_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537
538 if (pegasus->flags & PEGASUS_UNPLUG)
539 return;
540
Petko Manolov313a58e2013-04-25 22:41:21 +0000541 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, PEGASUS_MTU,
542 GFP_ATOMIC);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700543
544 if (pegasus->rx_skb == NULL)
545 goto tl_sched;
546goon:
547 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
548 usb_rcvbulkpipe(pegasus->usb, 1),
Petko Manolovb7302ca2016-04-27 14:24:49 +0300549 pegasus->rx_skb->data, PEGASUS_MTU,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700550 read_bulk_callback, pegasus);
David Brownell955a2602006-05-26 10:17:03 -0700551 rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
552 if (rx_status == -ENODEV)
553 netif_device_detach(pegasus->net);
554 else if (rx_status) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555 pegasus->flags |= PEGASUS_RX_URB_FAIL;
556 goto tl_sched;
557 } else {
558 pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
559 }
560
561 return;
562
563tl_sched:
564 tasklet_schedule(&pegasus->rx_tl);
565}
566
567static void rx_fixup(unsigned long data)
568{
569 pegasus_t *pegasus;
David Brownell955a2602006-05-26 10:17:03 -0700570 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700571
572 pegasus = (pegasus_t *) data;
573 if (pegasus->flags & PEGASUS_UNPLUG)
574 return;
575
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576 if (pegasus->flags & PEGASUS_RX_URB_FAIL)
577 if (pegasus->rx_skb)
578 goto try_again;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000579 if (pegasus->rx_skb == NULL)
Petko Manolov313a58e2013-04-25 22:41:21 +0000580 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net,
581 PEGASUS_MTU,
582 GFP_ATOMIC);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583 if (pegasus->rx_skb == NULL) {
Joe Perchesa475f602010-02-17 10:30:24 +0000584 netif_warn(pegasus, rx_err, pegasus->net, "low on memory\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585 tasklet_schedule(&pegasus->rx_tl);
Petko Manolov313a58e2013-04-25 22:41:21 +0000586 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587 }
588 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
589 usb_rcvbulkpipe(pegasus->usb, 1),
Petko Manolovb7302ca2016-04-27 14:24:49 +0300590 pegasus->rx_skb->data, PEGASUS_MTU,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591 read_bulk_callback, pegasus);
592try_again:
David Brownell955a2602006-05-26 10:17:03 -0700593 status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
594 if (status == -ENODEV)
595 netif_device_detach(pegasus->net);
596 else if (status) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597 pegasus->flags |= PEGASUS_RX_URB_FAIL;
598 tasklet_schedule(&pegasus->rx_tl);
599 } else {
600 pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
601 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602}
603
David Howells7d12e782006-10-05 14:55:46 +0100604static void write_bulk_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700605{
606 pegasus_t *pegasus = urb->context;
Micah Gruber93519822007-07-23 16:05:52 +0800607 struct net_device *net;
Oliver Neukumc94cb312008-12-18 23:00:59 -0800608 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609
610 if (!pegasus)
611 return;
612
Micah Gruber93519822007-07-23 16:05:52 +0800613 net = pegasus->net;
614
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615 if (!netif_device_present(net) || !netif_running(net))
616 return;
617
Oliver Neukumc94cb312008-12-18 23:00:59 -0800618 switch (status) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619 case -EPIPE:
620 /* FIXME schedule_work() to clear the tx halt */
621 netif_stop_queue(net);
Joe Perchesa475f602010-02-17 10:30:24 +0000622 netif_warn(pegasus, tx_err, net, "no tx stall recovery\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623 return;
624 case -ENOENT:
625 case -ECONNRESET:
626 case -ESHUTDOWN:
Joe Perchesa475f602010-02-17 10:30:24 +0000627 netif_dbg(pegasus, ifdown, net, "tx unlink, %d\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628 return;
629 default:
Joe Perchesa475f602010-02-17 10:30:24 +0000630 netif_info(pegasus, tx_err, net, "TX status %d\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631 /* FALL THROUGH */
632 case 0:
633 break;
634 }
635
Florian Westphal860e9532016-05-03 16:33:13 +0200636 netif_trans_update(net); /* prevent tx timeout */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637 netif_wake_queue(net);
638}
639
David Howells7d12e782006-10-05 14:55:46 +0100640static void intr_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641{
642 pegasus_t *pegasus = urb->context;
643 struct net_device *net;
Oliver Neukumc94cb312008-12-18 23:00:59 -0800644 int res, status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700645
646 if (!pegasus)
647 return;
648 net = pegasus->net;
649
Oliver Neukumc94cb312008-12-18 23:00:59 -0800650 switch (status) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651 case 0:
652 break;
653 case -ECONNRESET: /* unlink */
654 case -ENOENT:
655 case -ESHUTDOWN:
656 return;
657 default:
658 /* some Pegasus-I products report LOTS of data
659 * toggle errors... avoid log spamming
660 */
Joe Perchesa475f602010-02-17 10:30:24 +0000661 netif_dbg(pegasus, timer, net, "intr status %d\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700662 }
663
664 if (urb->actual_length >= 6) {
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000665 u8 *d = urb->transfer_buffer;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666
667 /* byte 0 == tx_status1, reg 2B */
668 if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL
669 |LATE_COL|JABBER_TIMEOUT)) {
Tobias Klauser82d82932017-04-07 10:17:39 +0200670 net->stats.tx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671 if (d[0] & TX_UNDERRUN)
Tobias Klauser82d82932017-04-07 10:17:39 +0200672 net->stats.tx_fifo_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673 if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT))
Tobias Klauser82d82932017-04-07 10:17:39 +0200674 net->stats.tx_aborted_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675 if (d[0] & LATE_COL)
Tobias Klauser82d82932017-04-07 10:17:39 +0200676 net->stats.tx_window_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677 }
678
679 /* d[5].LINK_STATUS lies on some adapters.
680 * d[0].NO_CARRIER kicks in only with failed TX.
681 * ... so monitoring with MII may be safest.
682 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683
684 /* bytes 3-4 == rx_lostpkt, reg 2E/2F */
Tobias Klauser82d82932017-04-07 10:17:39 +0200685 net->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686 }
687
Oliver Neukumc94cb312008-12-18 23:00:59 -0800688 res = usb_submit_urb(urb, GFP_ATOMIC);
689 if (res == -ENODEV)
David Brownell955a2602006-05-26 10:17:03 -0700690 netif_device_detach(pegasus->net);
Joe Perchesa475f602010-02-17 10:30:24 +0000691 if (res)
692 netif_err(pegasus, timer, net,
693 "can't resubmit interrupt urb, %d\n", res);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694}
695
696static void pegasus_tx_timeout(struct net_device *net)
697{
698 pegasus_t *pegasus = netdev_priv(net);
Joe Perchesa475f602010-02-17 10:30:24 +0000699 netif_warn(pegasus, timer, net, "tx timeout\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700 usb_unlink_urb(pegasus->tx_urb);
Tobias Klauser82d82932017-04-07 10:17:39 +0200701 net->stats.tx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700702}
703
Stephen Hemminger25a79c42009-08-31 19:50:45 +0000704static netdev_tx_t pegasus_start_xmit(struct sk_buff *skb,
705 struct net_device *net)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706{
707 pegasus_t *pegasus = netdev_priv(net);
708 int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3;
709 int res;
710 __u16 l16 = skb->len;
711
712 netif_stop_queue(net);
713
714 ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16);
Arnaldo Carvalho de Melod626f622007-03-27 18:55:52 -0300715 skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb,
717 usb_sndbulkpipe(pegasus->usb, 2),
718 pegasus->tx_buff, count,
719 write_bulk_callback, pegasus);
720 if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) {
Joe Perchesa475f602010-02-17 10:30:24 +0000721 netif_warn(pegasus, tx_err, net, "fail tx, %d\n", res);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722 switch (res) {
723 case -EPIPE: /* stall, or disconnect from TT */
724 /* cleanup should already have been scheduled */
725 break;
726 case -ENODEV: /* disconnect() upcoming */
Oliver Neukum9dd014e2009-04-17 01:40:19 -0700727 case -EPERM:
David Brownell955a2602006-05-26 10:17:03 -0700728 netif_device_detach(pegasus->net);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729 break;
730 default:
Tobias Klauser82d82932017-04-07 10:17:39 +0200731 net->stats.tx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732 netif_start_queue(net);
733 }
734 } else {
Tobias Klauser82d82932017-04-07 10:17:39 +0200735 net->stats.tx_packets++;
736 net->stats.tx_bytes += skb->len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700737 }
738 dev_kfree_skb(skb);
739
Patrick McHardy6ed10652009-06-23 06:03:08 +0000740 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700741}
742
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000743static inline void disable_net_traffic(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744{
Michael Buesche3453f62009-06-18 07:03:47 +0000745 __le16 tmp = cpu_to_le16(0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746
Michael Buesche3453f62009-06-18 07:03:47 +0000747 set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748}
749
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000750static inline void get_interrupt_interval(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751{
Michael Buesche3453f62009-06-18 07:03:47 +0000752 u16 data;
753 u8 interval;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754
Michael Buesche3453f62009-06-18 07:03:47 +0000755 read_eprom_word(pegasus, 4, &data);
756 interval = data >> 8;
Kevin Vigora85a46f2005-09-22 00:49:24 -0700757 if (pegasus->usb->speed != USB_SPEED_HIGH) {
Michael Buesche3453f62009-06-18 07:03:47 +0000758 if (interval < 0x80) {
Joe Perchesa475f602010-02-17 10:30:24 +0000759 netif_info(pegasus, timer, pegasus->net,
760 "intr interval changed from %ums to %ums\n",
761 interval, 0x80);
Michael Buesche3453f62009-06-18 07:03:47 +0000762 interval = 0x80;
763 data = (data & 0x00FF) | ((u16)interval << 8);
Kevin Vigora85a46f2005-09-22 00:49:24 -0700764#ifdef PEGASUS_WRITE_EEPROM
Michael Buesche3453f62009-06-18 07:03:47 +0000765 write_eprom_word(pegasus, 4, data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766#endif
Kevin Vigora85a46f2005-09-22 00:49:24 -0700767 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768 }
Michael Buesche3453f62009-06-18 07:03:47 +0000769 pegasus->intr_interval = interval;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770}
771
772static void set_carrier(struct net_device *net)
773{
774 pegasus_t *pegasus = netdev_priv(net);
775 u16 tmp;
776
Dan Williamsc43c49b2007-04-24 10:20:06 -0400777 if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700778 return;
Kevin Vigora85a46f2005-09-22 00:49:24 -0700779
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780 if (tmp & BMSR_LSTATUS)
781 netif_carrier_on(net);
782 else
783 netif_carrier_off(net);
784}
785
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000786static void free_all_urbs(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700787{
788 usb_free_urb(pegasus->intr_urb);
789 usb_free_urb(pegasus->tx_urb);
790 usb_free_urb(pegasus->rx_urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700791}
792
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000793static void unlink_all_urbs(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700794{
795 usb_kill_urb(pegasus->intr_urb);
796 usb_kill_urb(pegasus->tx_urb);
797 usb_kill_urb(pegasus->rx_urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798}
799
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000800static int alloc_urbs(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801{
Petko Manolov323b3492013-04-25 22:41:50 +0000802 int res = -ENOMEM;
803
Linus Torvalds1da177e2005-04-16 15:20:36 -0700804 pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
805 if (!pegasus->rx_urb) {
Petko Manolov323b3492013-04-25 22:41:50 +0000806 return res;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807 }
808 pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
809 if (!pegasus->tx_urb) {
810 usb_free_urb(pegasus->rx_urb);
Petko Manolov323b3492013-04-25 22:41:50 +0000811 return res;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700812 }
813 pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
814 if (!pegasus->intr_urb) {
815 usb_free_urb(pegasus->tx_urb);
816 usb_free_urb(pegasus->rx_urb);
Petko Manolov323b3492013-04-25 22:41:50 +0000817 return res;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700818 }
819
Petko Manolov323b3492013-04-25 22:41:50 +0000820 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700821}
822
823static int pegasus_open(struct net_device *net)
824{
825 pegasus_t *pegasus = netdev_priv(net);
Petko Manolov323b3492013-04-25 22:41:50 +0000826 int res=-ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827
828 if (pegasus->rx_skb == NULL)
Petko Manolov313a58e2013-04-25 22:41:21 +0000829 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net,
830 PEGASUS_MTU,
831 GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700832 if (!pegasus->rx_skb)
Petko Manolov323b3492013-04-25 22:41:50 +0000833 goto exit;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700834
835 res = set_registers(pegasus, EthID, 6, net->dev_addr);
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000836
Linus Torvalds1da177e2005-04-16 15:20:36 -0700837 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
838 usb_rcvbulkpipe(pegasus->usb, 1),
Petko Manolovb7302ca2016-04-27 14:24:49 +0300839 pegasus->rx_skb->data, PEGASUS_MTU,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840 read_bulk_callback, pegasus);
841 if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) {
David Brownell955a2602006-05-26 10:17:03 -0700842 if (res == -ENODEV)
843 netif_device_detach(pegasus->net);
Joe Perchesa475f602010-02-17 10:30:24 +0000844 netif_dbg(pegasus, ifup, net, "failed rx_urb, %d\n", res);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845 goto exit;
846 }
847
848 usb_fill_int_urb(pegasus->intr_urb, pegasus->usb,
849 usb_rcvintpipe(pegasus->usb, 3),
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000850 pegasus->intr_buff, sizeof(pegasus->intr_buff),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851 intr_callback, pegasus, pegasus->intr_interval);
852 if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) {
David Brownell955a2602006-05-26 10:17:03 -0700853 if (res == -ENODEV)
854 netif_device_detach(pegasus->net);
Joe Perchesa475f602010-02-17 10:30:24 +0000855 netif_dbg(pegasus, ifup, net, "failed intr_urb, %d\n", res);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700856 usb_kill_urb(pegasus->rx_urb);
857 goto exit;
858 }
Petko Manolov323b3492013-04-25 22:41:50 +0000859 res = enable_net_traffic(net, pegasus->usb);
860 if (res < 0) {
Joe Perchesa475f602010-02-17 10:30:24 +0000861 netif_dbg(pegasus, ifup, net,
862 "can't enable_net_traffic() - %d\n", res);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863 res = -EIO;
864 usb_kill_urb(pegasus->rx_urb);
865 usb_kill_urb(pegasus->intr_urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866 goto exit;
867 }
868 set_carrier(net);
869 netif_start_queue(net);
Joe Perchesa475f602010-02-17 10:30:24 +0000870 netif_dbg(pegasus, ifup, net, "open\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871 res = 0;
872exit:
873 return res;
874}
875
876static int pegasus_close(struct net_device *net)
877{
878 pegasus_t *pegasus = netdev_priv(net);
879
880 netif_stop_queue(net);
881 if (!(pegasus->flags & PEGASUS_UNPLUG))
882 disable_net_traffic(pegasus);
883 tasklet_kill(&pegasus->rx_tl);
884 unlink_all_urbs(pegasus);
885
886 return 0;
887}
888
889static void pegasus_get_drvinfo(struct net_device *dev,
890 struct ethtool_drvinfo *info)
891{
892 pegasus_t *pegasus = netdev_priv(dev);
Jiri Pirko7826d432013-01-06 00:44:26 +0000893
894 strlcpy(info->driver, driver_name, sizeof(info->driver));
895 strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000896 usb_make_path(pegasus->usb, info->bus_info, sizeof(info->bus_info));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897}
898
899/* also handles three patterns of some kind in hardware */
900#define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY)
901
902static void
903pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
904{
905 pegasus_t *pegasus = netdev_priv(dev);
906
907 wol->supported = WAKE_MAGIC | WAKE_PHY;
908 wol->wolopts = pegasus->wolopts;
909}
910
911static int
912pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
913{
914 pegasus_t *pegasus = netdev_priv(dev);
915 u8 reg78 = 0x04;
Ming Lei4fbc5b22013-01-19 01:32:01 +0000916 int ret;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000917
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918 if (wol->wolopts & ~WOL_SUPPORTED)
919 return -EINVAL;
920
921 if (wol->wolopts & WAKE_MAGIC)
922 reg78 |= 0x80;
923 if (wol->wolopts & WAKE_PHY)
924 reg78 |= 0x40;
925 /* FIXME this 0x10 bit still needs to get set in the chip... */
926 if (wol->wolopts)
927 pegasus->eth_regs[0] |= 0x10;
928 else
929 pegasus->eth_regs[0] &= ~0x10;
930 pegasus->wolopts = wol->wolopts;
Ming Lei4fbc5b22013-01-19 01:32:01 +0000931
932 ret = set_register(pegasus, WakeupControl, reg78);
933 if (!ret)
934 ret = device_set_wakeup_enable(&pegasus->usb->dev,
935 wol->wolopts);
936 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700937}
938
939static inline void pegasus_reset_wol(struct net_device *dev)
940{
941 struct ethtool_wolinfo wol;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +0000942
Linus Torvalds1da177e2005-04-16 15:20:36 -0700943 memset(&wol, 0, sizeof wol);
944 (void) pegasus_set_wol(dev, &wol);
945}
946
947static int
Philippe Reynes71dbc3412017-03-17 23:34:04 +0100948pegasus_get_link_ksettings(struct net_device *dev,
949 struct ethtool_link_ksettings *ecmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950{
951 pegasus_t *pegasus;
952
Linus Torvalds1da177e2005-04-16 15:20:36 -0700953 pegasus = netdev_priv(dev);
Philippe Reynes71dbc3412017-03-17 23:34:04 +0100954 mii_ethtool_get_link_ksettings(&pegasus->mii, ecmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955 return 0;
956}
957
958static int
Philippe Reynes71dbc3412017-03-17 23:34:04 +0100959pegasus_set_link_ksettings(struct net_device *dev,
960 const struct ethtool_link_ksettings *ecmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961{
962 pegasus_t *pegasus = netdev_priv(dev);
Philippe Reynes71dbc3412017-03-17 23:34:04 +0100963 return mii_ethtool_set_link_ksettings(&pegasus->mii, ecmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964}
965
966static int pegasus_nway_reset(struct net_device *dev)
967{
968 pegasus_t *pegasus = netdev_priv(dev);
969 return mii_nway_restart(&pegasus->mii);
970}
971
972static u32 pegasus_get_link(struct net_device *dev)
973{
974 pegasus_t *pegasus = netdev_priv(dev);
975 return mii_link_ok(&pegasus->mii);
976}
977
978static u32 pegasus_get_msglevel(struct net_device *dev)
979{
980 pegasus_t *pegasus = netdev_priv(dev);
981 return pegasus->msg_enable;
982}
983
984static void pegasus_set_msglevel(struct net_device *dev, u32 v)
985{
986 pegasus_t *pegasus = netdev_priv(dev);
987 pegasus->msg_enable = v;
988}
989
Stephen Hemminger0fc0b732009-09-02 01:03:33 -0700990static const struct ethtool_ops ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700991 .get_drvinfo = pegasus_get_drvinfo,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992 .nway_reset = pegasus_nway_reset,
993 .get_link = pegasus_get_link,
994 .get_msglevel = pegasus_get_msglevel,
995 .set_msglevel = pegasus_set_msglevel,
996 .get_wol = pegasus_get_wol,
997 .set_wol = pegasus_set_wol,
Philippe Reynes71dbc3412017-03-17 23:34:04 +0100998 .get_link_ksettings = pegasus_get_link_ksettings,
999 .set_link_ksettings = pegasus_set_link_ksettings,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000};
1001
1002static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
1003{
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001004 __u16 *data = (__u16 *) &rq->ifr_ifru;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001005 pegasus_t *pegasus = netdev_priv(net);
1006 int res;
1007
1008 switch (cmd) {
1009 case SIOCDEVPRIVATE:
1010 data[0] = pegasus->phy;
Gustavo A. R. Silva209d6e72019-02-08 13:07:29 -06001011 /* fall through */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012 case SIOCDEVPRIVATE + 1:
1013 read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]);
1014 res = 0;
1015 break;
1016 case SIOCDEVPRIVATE + 2:
1017 if (!capable(CAP_NET_ADMIN))
1018 return -EPERM;
Petko Manolov2bd64702013-04-25 22:41:36 +00001019 write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, &data[2]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001020 res = 0;
1021 break;
1022 default:
1023 res = -EOPNOTSUPP;
1024 }
1025 return res;
1026}
1027
1028static void pegasus_set_multicast(struct net_device *net)
1029{
1030 pegasus_t *pegasus = netdev_priv(net);
1031
1032 if (net->flags & IFF_PROMISC) {
1033 pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS;
Joe Perchesa475f602010-02-17 10:30:24 +00001034 netif_info(pegasus, link, net, "Promiscuous mode enabled\n");
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00001035 } else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001036 pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST;
1037 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
Joe Perchesa475f602010-02-17 10:30:24 +00001038 netif_dbg(pegasus, link, net, "set allmulti\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039 } else {
1040 pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST;
1041 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
1042 }
Petko Manolov323b3492013-04-25 22:41:50 +00001043 update_eth_regs_async(pegasus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044}
1045
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001046static __u8 mii_phy_probe(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047{
1048 int i;
1049 __u16 tmp;
1050
1051 for (i = 0; i < 32; i++) {
1052 read_mii_word(pegasus, i, MII_BMSR, &tmp);
1053 if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0)
1054 continue;
1055 else
1056 return i;
1057 }
1058
1059 return 0xff;
1060}
1061
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001062static inline void setup_pegasus_II(pegasus_t *pegasus)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063{
1064 __u8 data = 0xa5;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001065
Petko Manolov4a1728a2005-11-15 09:48:23 +02001066 set_register(pegasus, Reg1d, 0);
1067 set_register(pegasus, Reg7b, 1);
Jia-Ju Bai6dff5ad2018-07-27 16:36:29 +08001068 msleep(100);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069 if ((pegasus->features & HAS_HOME_PNA) && mii_mode)
Petko Manolov4a1728a2005-11-15 09:48:23 +02001070 set_register(pegasus, Reg7b, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071 else
Petko Manolov4a1728a2005-11-15 09:48:23 +02001072 set_register(pegasus, Reg7b, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001073
Petko Manolov4a1728a2005-11-15 09:48:23 +02001074 set_register(pegasus, 0x83, data);
1075 get_registers(pegasus, 0x83, 1, &data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001077 if (data == 0xa5)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078 pegasus->chip = 0x8513;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001079 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080 pegasus->chip = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081
Petko Manolov4a1728a2005-11-15 09:48:23 +02001082 set_register(pegasus, 0x80, 0xc0);
1083 set_register(pegasus, 0x83, 0xff);
1084 set_register(pegasus, 0x84, 0x01);
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001085
Linus Torvalds1da177e2005-04-16 15:20:36 -07001086 if (pegasus->features & HAS_HOME_PNA && mii_mode)
Petko Manolov4a1728a2005-11-15 09:48:23 +02001087 set_register(pegasus, Reg81, 6);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001088 else
Petko Manolov4a1728a2005-11-15 09:48:23 +02001089 set_register(pegasus, Reg81, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090}
1091
1092
David Brownellcda28362008-11-16 00:36:08 -08001093static int pegasus_count;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001094static struct workqueue_struct *pegasus_workqueue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095#define CARRIER_CHECK_DELAY (2 * HZ)
1096
David Howellsc4028952006-11-22 14:57:56 +00001097static void check_carrier(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001098{
David Howellsc4028952006-11-22 14:57:56 +00001099 pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100 set_carrier(pegasus->net);
1101 if (!(pegasus->flags & PEGASUS_UNPLUG)) {
1102 queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
1103 CARRIER_CHECK_DELAY);
1104 }
1105}
1106
Ben Collins4f631352008-07-30 12:39:02 -07001107static int pegasus_blacklisted(struct usb_device *udev)
1108{
1109 struct usb_device_descriptor *udd = &udev->descriptor;
1110
1111 /* Special quirk to keep the driver from handling the Belkin Bluetooth
1112 * dongle which happens to have the same ID.
1113 */
Michael Buesche3453f62009-06-18 07:03:47 +00001114 if ((udd->idVendor == cpu_to_le16(VENDOR_BELKIN)) &&
1115 (udd->idProduct == cpu_to_le16(0x0121)) &&
Ben Collins4f631352008-07-30 12:39:02 -07001116 (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) &&
1117 (udd->bDeviceProtocol == 1))
1118 return 1;
1119
1120 return 0;
1121}
1122
David Brownellcda28362008-11-16 00:36:08 -08001123/* we rely on probe() and remove() being serialized so we
1124 * don't need extra locking on pegasus_count.
1125 */
1126static void pegasus_dec_workqueue(void)
1127{
1128 pegasus_count--;
1129 if (pegasus_count == 0) {
1130 destroy_workqueue(pegasus_workqueue);
1131 pegasus_workqueue = NULL;
1132 }
1133}
1134
Linus Torvalds1da177e2005-04-16 15:20:36 -07001135static int pegasus_probe(struct usb_interface *intf,
1136 const struct usb_device_id *id)
1137{
1138 struct usb_device *dev = interface_to_usbdev(intf);
1139 struct net_device *net;
1140 pegasus_t *pegasus;
1141 int dev_index = id - pegasus_ids;
1142 int res = -ENOMEM;
1143
David Brownellcda28362008-11-16 00:36:08 -08001144 if (pegasus_blacklisted(dev))
1145 return -ENODEV;
Ben Collins4f631352008-07-30 12:39:02 -07001146
David Brownellcda28362008-11-16 00:36:08 -08001147 if (pegasus_count == 0) {
Bhaktipriya Shridhar95ac3992016-08-30 22:02:47 +05301148 pegasus_workqueue = alloc_workqueue("pegasus", WQ_MEM_RECLAIM,
1149 0);
David Brownellcda28362008-11-16 00:36:08 -08001150 if (!pegasus_workqueue)
1151 return -ENOMEM;
Ben Collins4f631352008-07-30 12:39:02 -07001152 }
David Brownellcda28362008-11-16 00:36:08 -08001153 pegasus_count++;
1154
Linus Torvalds1da177e2005-04-16 15:20:36 -07001155 net = alloc_etherdev(sizeof(struct pegasus));
Joe Perches41de8d42012-01-29 13:47:52 +00001156 if (!net)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001157 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158
1159 pegasus = netdev_priv(net);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001160 pegasus->dev_index = dev_index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001161
Petko Manolov323b3492013-04-25 22:41:50 +00001162 res = alloc_urbs(pegasus);
1163 if (res < 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001164 dev_err(&intf->dev, "can't allocate %s\n", "urbs");
1165 goto out1;
1166 }
1167
1168 tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus);
1169
David Howellsc4028952006-11-22 14:57:56 +00001170 INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001171
1172 pegasus->intf = intf;
1173 pegasus->usb = dev;
1174 pegasus->net = net;
Oliver Neukum8cb89572009-01-08 11:22:25 -08001175
1176
Linus Torvalds1da177e2005-04-16 15:20:36 -07001177 net->watchdog_timeo = PEGASUS_TX_TIMEOUT;
Oliver Neukum8cb89572009-01-08 11:22:25 -08001178 net->netdev_ops = &pegasus_netdev_ops;
Wilfried Klaebe7ad24ea2014-05-11 00:12:32 +00001179 net->ethtool_ops = &ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001180 pegasus->mii.dev = net;
1181 pegasus->mii.mdio_read = mdio_read;
1182 pegasus->mii.mdio_write = mdio_write;
1183 pegasus->mii.phy_id_mask = 0x1f;
1184 pegasus->mii.reg_num_mask = 0x1f;
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001185 pegasus->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV
Linus Torvalds1da177e2005-04-16 15:20:36 -07001186 | NETIF_MSG_PROBE | NETIF_MSG_LINK);
1187
1188 pegasus->features = usb_dev_id[dev_index].private;
1189 get_interrupt_interval(pegasus);
1190 if (reset_mac(pegasus)) {
1191 dev_err(&intf->dev, "can't reset MAC\n");
1192 res = -EIO;
1193 goto out2;
1194 }
1195 set_ethernet_addr(pegasus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001196 if (pegasus->features & PEGASUS_II) {
1197 dev_info(&intf->dev, "setup Pegasus II specific registers\n");
1198 setup_pegasus_II(pegasus);
1199 }
1200 pegasus->phy = mii_phy_probe(pegasus);
1201 if (pegasus->phy == 0xff) {
1202 dev_warn(&intf->dev, "can't locate MII phy, using default\n");
1203 pegasus->phy = 1;
1204 }
1205 pegasus->mii.phy_id = pegasus->phy;
1206 usb_set_intfdata(intf, pegasus);
1207 SET_NETDEV_DEV(net, &intf->dev);
1208 pegasus_reset_wol(net);
1209 res = register_netdev(net);
1210 if (res)
1211 goto out3;
1212 queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
Petko Manolov323b3492013-04-25 22:41:50 +00001213 CARRIER_CHECK_DELAY);
1214 dev_info(&intf->dev, "%s, %s, %pM\n", net->name,
1215 usb_dev_id[dev_index].name, net->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001216 return 0;
1217
1218out3:
1219 usb_set_intfdata(intf, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001220out2:
1221 free_all_urbs(pegasus);
1222out1:
1223 free_netdev(net);
1224out:
David Brownellcda28362008-11-16 00:36:08 -08001225 pegasus_dec_workqueue();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001226 return res;
1227}
1228
1229static void pegasus_disconnect(struct usb_interface *intf)
1230{
1231 struct pegasus *pegasus = usb_get_intfdata(intf);
1232
1233 usb_set_intfdata(intf, NULL);
1234 if (!pegasus) {
1235 dev_dbg(&intf->dev, "unregistering non-bound device?\n");
1236 return;
1237 }
1238
1239 pegasus->flags |= PEGASUS_UNPLUG;
1240 cancel_delayed_work(&pegasus->carrier_check);
1241 unregister_netdev(pegasus->net);
Kevin Vigora85a46f2005-09-22 00:49:24 -07001242 unlink_all_urbs(pegasus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243 free_all_urbs(pegasus);
Arnaldo Carvalho de Melo4c13eb62007-04-25 17:40:23 -07001244 if (pegasus->rx_skb != NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245 dev_kfree_skb(pegasus->rx_skb);
Arnaldo Carvalho de Melo4c13eb62007-04-25 17:40:23 -07001246 pegasus->rx_skb = NULL;
1247 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248 free_netdev(pegasus->net);
David Brownellcda28362008-11-16 00:36:08 -08001249 pegasus_dec_workqueue();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001250}
1251
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001252static int pegasus_suspend(struct usb_interface *intf, pm_message_t message)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001253{
1254 struct pegasus *pegasus = usb_get_intfdata(intf);
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001255
1256 netif_device_detach(pegasus->net);
David Brownell7e713b82006-05-01 14:02:45 -07001257 cancel_delayed_work(&pegasus->carrier_check);
David Brownell27d72e82005-04-18 17:39:22 -07001258 if (netif_running(pegasus->net)) {
David Brownell27d72e82005-04-18 17:39:22 -07001259 usb_kill_urb(pegasus->rx_urb);
1260 usb_kill_urb(pegasus->intr_urb);
1261 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001262 return 0;
1263}
1264
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001265static int pegasus_resume(struct usb_interface *intf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001266{
1267 struct pegasus *pegasus = usb_get_intfdata(intf);
1268
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001269 netif_device_attach(pegasus->net);
David Brownell27d72e82005-04-18 17:39:22 -07001270 if (netif_running(pegasus->net)) {
1271 pegasus->rx_urb->status = 0;
1272 pegasus->rx_urb->actual_length = 0;
David Howells7d12e782006-10-05 14:55:46 +01001273 read_bulk_callback(pegasus->rx_urb);
David Brownell27d72e82005-04-18 17:39:22 -07001274
1275 pegasus->intr_urb->status = 0;
1276 pegasus->intr_urb->actual_length = 0;
David Howells7d12e782006-10-05 14:55:46 +01001277 intr_callback(pegasus->intr_urb);
David Brownell27d72e82005-04-18 17:39:22 -07001278 }
David Brownell7e713b82006-05-01 14:02:45 -07001279 queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
1280 CARRIER_CHECK_DELAY);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001281 return 0;
1282}
1283
Oliver Neukum8cb89572009-01-08 11:22:25 -08001284static const struct net_device_ops pegasus_netdev_ops = {
1285 .ndo_open = pegasus_open,
1286 .ndo_stop = pegasus_close,
1287 .ndo_do_ioctl = pegasus_ioctl,
1288 .ndo_start_xmit = pegasus_start_xmit,
Jiri Pirkoafc4b132011-08-16 06:29:01 +00001289 .ndo_set_rx_mode = pegasus_set_multicast,
Oliver Neukum8cb89572009-01-08 11:22:25 -08001290 .ndo_tx_timeout = pegasus_tx_timeout,
Ben Hutchings240c1022009-07-09 17:54:35 +00001291 .ndo_set_mac_address = eth_mac_addr,
1292 .ndo_validate_addr = eth_validate_addr,
Oliver Neukum8cb89572009-01-08 11:22:25 -08001293};
1294
Linus Torvalds1da177e2005-04-16 15:20:36 -07001295static struct usb_driver pegasus_driver = {
1296 .name = driver_name,
1297 .probe = pegasus_probe,
1298 .disconnect = pegasus_disconnect,
1299 .id_table = pegasus_ids,
1300 .suspend = pegasus_suspend,
1301 .resume = pegasus_resume,
Sarah Sharpe1f12eb2012-04-23 10:08:51 -07001302 .disable_hub_initiated_lpm = 1,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001303};
1304
David Brownellcda28362008-11-16 00:36:08 -08001305static void __init parse_id(char *id)
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +02001306{
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001307 unsigned int vendor_id = 0, device_id = 0, flags = 0, i = 0;
1308 char *token, *name = NULL;
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +02001309
1310 if ((token = strsep(&id, ":")) != NULL)
1311 name = token;
1312 /* name now points to a null terminated string*/
1313 if ((token = strsep(&id, ":")) != NULL)
1314 vendor_id = simple_strtoul(token, NULL, 16);
1315 if ((token = strsep(&id, ":")) != NULL)
1316 device_id = simple_strtoul(token, NULL, 16);
1317 flags = simple_strtoul(id, NULL, 16);
1318 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 +00001319 driver_name, name, vendor_id, device_id, flags);
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +02001320
1321 if (vendor_id > 0x10000 || vendor_id == 0)
1322 return;
1323 if (device_id > 0x10000 || device_id == 0)
1324 return;
1325
Nicolas Kaiser5a9dbfe2010-06-26 06:58:54 +00001326 for (i = 0; usb_dev_id[i].name; i++);
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +02001327 usb_dev_id[i].name = name;
1328 usb_dev_id[i].vendor = vendor_id;
1329 usb_dev_id[i].device = device_id;
1330 usb_dev_id[i].private = flags;
1331 pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
1332 pegasus_ids[i].idVendor = vendor_id;
1333 pegasus_ids[i].idProduct = device_id;
1334}
1335
Linus Torvalds1da177e2005-04-16 15:20:36 -07001336static int __init pegasus_init(void)
1337{
1338 pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION);
A.YOSHIYAMAa4f81a62005-11-15 09:55:18 +02001339 if (devid)
1340 parse_id(devid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001341 return usb_register(&pegasus_driver);
1342}
1343
1344static void __exit pegasus_exit(void)
1345{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001346 usb_deregister(&pegasus_driver);
1347}
1348
1349module_init(pegasus_init);
1350module_exit(pegasus_exit);