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Commit | Line | Data |
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1da177e4 | 1 | /* |
323b3496 | 2 | * Copyright (c) 1999-2013 Petko Manolov (petkan@nucleusys.com) |
1da177e4 LT |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * ChangeLog: | |
9 | * .... Most of the time spent on reading sources & docs. | |
10 | * v0.2.x First official release for the Linux kernel. | |
11 | * v0.3.0 Beutified and structured, some bugs fixed. | |
12 | * v0.3.x URBifying bulk requests and bugfixing. First relatively | |
13 | * stable release. Still can touch device's registers only | |
14 | * from top-halves. | |
15 | * v0.4.0 Control messages remained unurbified are now URBs. | |
16 | * Now we can touch the HW at any time. | |
17 | * v0.4.9 Control urbs again use process context to wait. Argh... | |
18 | * Some long standing bugs (enable_net_traffic) fixed. | |
19 | * Also nasty trick about resubmiting control urb from | |
20 | * interrupt context used. Please let me know how it | |
21 | * behaves. Pegasus II support added since this version. | |
22 | * TODO: suppressing HCD warnings spewage on disconnect. | |
23 | * v0.4.13 Ethernet address is now set at probe(), not at open() | |
5a9dbfe0 | 24 | * time as this seems to break dhcpd. |
1da177e4 LT |
25 | * v0.5.0 branch to 2.5.x kernels |
26 | * v0.5.1 ethtool support added | |
27 | * v0.5.5 rx socket buffers are in a pool and the their allocation | |
5a9dbfe0 | 28 | * is out of the interrupt routine. |
323b3496 PM |
29 | * ... |
30 | * v0.9.3 simplified [get|set]_register(s), async update registers | |
31 | * logic revisited, receive skb_pool removed. | |
1da177e4 LT |
32 | */ |
33 | ||
1da177e4 LT |
34 | #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> | |
45 | #include <asm/uaccess.h> | |
46 | #include "pegasus.h" | |
47 | ||
48 | /* | |
49 | * Version Information | |
50 | */ | |
323b3496 PM |
51 | #define DRIVER_VERSION "v0.9.3 (2013/04/25)" |
52 | #define DRIVER_AUTHOR "Petko Manolov <petkan@nucleusys.com>" | |
1da177e4 LT |
53 | #define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver" |
54 | ||
55 | static 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 | ||
eb939922 RR |
61 | static bool loopback; |
62 | static bool mii_mode; | |
5a9dbfe0 | 63 | static char *devid; |
1da177e4 LT |
64 | |
65 | static struct usb_eth_dev usb_dev_id[] = { | |
66 | #define PEGASUS_DEV(pn, vid, pid, flags) \ | |
67 | {.name = pn, .vendor = vid, .device = pid, .private = flags}, | |
ab854b24 CR |
68 | #define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \ |
69 | PEGASUS_DEV(pn, vid, pid, flags) | |
1da177e4 LT |
70 | #include "pegasus.h" |
71 | #undef PEGASUS_DEV | |
ab854b24 | 72 | #undef PEGASUS_DEV_CLASS |
a4f81a61 | 73 | {NULL, 0, 0, 0}, |
1da177e4 LT |
74 | {NULL, 0, 0, 0} |
75 | }; | |
76 | ||
77 | static 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}, | |
ab854b24 CR |
80 | /* |
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}, | |
1da177e4 LT |
89 | #include "pegasus.h" |
90 | #undef PEGASUS_DEV | |
ab854b24 | 91 | #undef PEGASUS_DEV_CLASS |
a4f81a61 | 92 | {}, |
1da177e4 LT |
93 | {} |
94 | }; | |
95 | ||
96 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
97 | MODULE_DESCRIPTION(DRIVER_DESC); | |
98 | MODULE_LICENSE("GPL"); | |
99 | module_param(loopback, bool, 0); | |
100 | module_param(mii_mode, bool, 0); | |
a4f81a61 | 101 | module_param(devid, charp, 0); |
1da177e4 LT |
102 | MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)"); |
103 | MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0"); | |
a4f81a61 | 104 | MODULE_PARM_DESC(devid, "The format is: 'DEV_name:VendorID:DeviceID:Flags'"); |
1da177e4 LT |
105 | |
106 | /* use ethtool to change the level for any given device */ | |
107 | static int msg_level = -1; | |
5a9dbfe0 NK |
108 | module_param(msg_level, int, 0); |
109 | MODULE_PARM_DESC(msg_level, "Override default message level"); | |
1da177e4 LT |
110 | |
111 | MODULE_DEVICE_TABLE(usb, pegasus_ids); | |
8cb89571 | 112 | static const struct net_device_ops pegasus_netdev_ops; |
1da177e4 | 113 | |
323b3496 PM |
114 | /*****/ |
115 | ||
116 | static void async_ctrl_callback(struct urb *urb) | |
1da177e4 | 117 | { |
323b3496 | 118 | struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; |
c94cb314 | 119 | int status = urb->status; |
1da177e4 | 120 | |
323b3496 PM |
121 | if (status < 0) |
122 | dev_dbg(&urb->dev->dev, "%s failed with %d", __func__, status); | |
123 | kfree(req); | |
124 | usb_free_urb(urb); | |
1da177e4 LT |
125 | } |
126 | ||
323b3496 | 127 | static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data) |
1da177e4 LT |
128 | { |
129 | int ret; | |
1da177e4 | 130 | |
323b3496 PM |
131 | ret = usb_control_msg(pegasus->usb, usb_rcvctrlpipe(pegasus->usb, 0), |
132 | PEGASUS_REQ_GET_REGS, PEGASUS_REQT_READ, 0, | |
133 | indx, data, size, 1000); | |
134 | if (ret < 0) | |
135 | netif_dbg(pegasus, drv, pegasus->net, | |
136 | "%s returned %d\n", __func__, ret); | |
1da177e4 LT |
137 | return ret; |
138 | } | |
139 | ||
323b3496 | 140 | static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data) |
1da177e4 LT |
141 | { |
142 | int ret; | |
1da177e4 | 143 | |
323b3496 PM |
144 | ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0), |
145 | PEGASUS_REQ_SET_REGS, PEGASUS_REQT_WRITE, 0, | |
146 | indx, data, size, 100); | |
147 | if (ret < 0) | |
148 | netif_dbg(pegasus, drv, pegasus->net, | |
149 | "%s returned %d\n", __func__, ret); | |
1da177e4 LT |
150 | return ret; |
151 | } | |
152 | ||
5a9dbfe0 | 153 | static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data) |
1da177e4 LT |
154 | { |
155 | int ret; | |
1da177e4 | 156 | |
323b3496 PM |
157 | ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0), |
158 | PEGASUS_REQ_SET_REG, PEGASUS_REQT_WRITE, data, | |
159 | indx, &data, 1, 1000); | |
160 | if (ret < 0) | |
161 | netif_dbg(pegasus, drv, pegasus->net, | |
162 | "%s returned %d\n", __func__, ret); | |
1da177e4 LT |
163 | return ret; |
164 | } | |
165 | ||
5a9dbfe0 | 166 | static int update_eth_regs_async(pegasus_t *pegasus) |
1da177e4 | 167 | { |
323b3496 PM |
168 | int ret = -ENOMEM; |
169 | struct urb *async_urb; | |
170 | struct usb_ctrlrequest *req; | |
1da177e4 | 171 | |
323b3496 PM |
172 | req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC); |
173 | if (req == NULL) | |
174 | return ret; | |
1da177e4 | 175 | |
323b3496 PM |
176 | async_urb = usb_alloc_urb(0, GFP_ATOMIC); |
177 | if (async_urb == NULL) { | |
178 | kfree(req); | |
179 | return ret; | |
180 | } | |
181 | req->bRequestType = PEGASUS_REQT_WRITE; | |
182 | req->bRequest = PEGASUS_REQ_SET_REGS; | |
183 | req->wValue = cpu_to_le16(0); | |
184 | req->wIndex = cpu_to_le16(EthCtrl0); | |
185 | req->wLength = cpu_to_le16(3); | |
186 | ||
187 | usb_fill_control_urb(async_urb, pegasus->usb, | |
188 | usb_sndctrlpipe(pegasus->usb, 0), (void *)req, | |
189 | pegasus->eth_regs, 3, async_ctrl_callback, req); | |
190 | ||
191 | ret = usb_submit_urb(async_urb, GFP_ATOMIC); | |
192 | if (ret) { | |
955a2608 DB |
193 | if (ret == -ENODEV) |
194 | netif_device_detach(pegasus->net); | |
a475f603 | 195 | netif_err(pegasus, drv, pegasus->net, |
323b3496 | 196 | "%s returned %d\n", __func__, ret); |
955a2608 | 197 | } |
1da177e4 LT |
198 | return ret; |
199 | } | |
200 | ||
2bd64701 | 201 | static int __mii_op(pegasus_t *p, __u8 phy, __u8 indx, __u16 *regd, __u8 cmd) |
1da177e4 LT |
202 | { |
203 | int i; | |
204 | __u8 data[4] = { phy, 0, 0, indx }; | |
205 | __le16 regdi; | |
2bd64701 | 206 | int ret = -ETIMEDOUT; |
1da177e4 | 207 | |
2bd64701 PM |
208 | if (cmd & PHY_WRITE) { |
209 | __le16 *t = (__le16 *) & data[1]; | |
210 | *t = cpu_to_le16(*regd); | |
211 | } | |
212 | set_register(p, PhyCtrl, 0); | |
213 | set_registers(p, PhyAddr, sizeof(data), data); | |
214 | set_register(p, PhyCtrl, (indx | cmd)); | |
1da177e4 | 215 | for (i = 0; i < REG_TIMEOUT; i++) { |
2bd64701 PM |
216 | ret = get_registers(p, PhyCtrl, 1, data); |
217 | if (ret < 0) | |
7e713b82 | 218 | goto fail; |
1da177e4 LT |
219 | if (data[0] & PHY_DONE) |
220 | break; | |
221 | } | |
a475f603 JP |
222 | if (i >= REG_TIMEOUT) |
223 | goto fail; | |
2bd64701 PM |
224 | if (cmd & PHY_READ) { |
225 | ret = get_registers(p, PhyData, 2, ®di); | |
226 | *regd = le16_to_cpu(regdi); | |
227 | return ret; | |
228 | } | |
229 | return 0; | |
230 | fail: | |
231 | netif_dbg(p, drv, p->net, "%s failed\n", __func__); | |
a475f603 | 232 | return ret; |
2bd64701 | 233 | } |
a475f603 | 234 | |
2bd64701 PM |
235 | /* Returns non-negative int on success, error on failure */ |
236 | static int read_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd) | |
237 | { | |
238 | return __mii_op(pegasus, phy, indx, regd, PHY_READ); | |
239 | } | |
1da177e4 | 240 | |
2bd64701 PM |
241 | /* Returns zero on success, error on failure */ |
242 | static int write_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd) | |
243 | { | |
244 | return __mii_op(pegasus, phy, indx, regd, PHY_WRITE); | |
1da177e4 LT |
245 | } |
246 | ||
247 | static int mdio_read(struct net_device *dev, int phy_id, int loc) | |
248 | { | |
8739cfef | 249 | pegasus_t *pegasus = netdev_priv(dev); |
1da177e4 LT |
250 | u16 res; |
251 | ||
252 | read_mii_word(pegasus, phy_id, loc, &res); | |
253 | return (int)res; | |
254 | } | |
255 | ||
1da177e4 LT |
256 | static void mdio_write(struct net_device *dev, int phy_id, int loc, int val) |
257 | { | |
8739cfef | 258 | pegasus_t *pegasus = netdev_priv(dev); |
1da177e4 | 259 | |
2bd64701 | 260 | write_mii_word(pegasus, phy_id, loc, (__u16 *)&val); |
1da177e4 LT |
261 | } |
262 | ||
5a9dbfe0 | 263 | static int read_eprom_word(pegasus_t *pegasus, __u8 index, __u16 *retdata) |
1da177e4 LT |
264 | { |
265 | int i; | |
266 | __u8 tmp; | |
267 | __le16 retdatai; | |
268 | int ret; | |
269 | ||
4a1728a2 PM |
270 | set_register(pegasus, EpromCtrl, 0); |
271 | set_register(pegasus, EpromOffset, index); | |
272 | set_register(pegasus, EpromCtrl, EPROM_READ); | |
1da177e4 LT |
273 | |
274 | for (i = 0; i < REG_TIMEOUT; i++) { | |
275 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); | |
276 | if (tmp & EPROM_DONE) | |
277 | break; | |
7e713b82 DB |
278 | if (ret == -ESHUTDOWN) |
279 | goto fail; | |
1da177e4 | 280 | } |
a475f603 JP |
281 | if (i >= REG_TIMEOUT) |
282 | goto fail; | |
283 | ||
284 | ret = get_registers(pegasus, EpromData, 2, &retdatai); | |
285 | *retdata = le16_to_cpu(retdatai); | |
286 | return ret; | |
1da177e4 | 287 | |
7e713b82 | 288 | fail: |
a475f603 | 289 | netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__); |
4a1728a2 | 290 | return -ETIMEDOUT; |
1da177e4 LT |
291 | } |
292 | ||
293 | #ifdef PEGASUS_WRITE_EEPROM | |
5a9dbfe0 | 294 | static inline void enable_eprom_write(pegasus_t *pegasus) |
1da177e4 LT |
295 | { |
296 | __u8 tmp; | |
1da177e4 | 297 | |
4a1728a2 PM |
298 | get_registers(pegasus, EthCtrl2, 1, &tmp); |
299 | set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE); | |
1da177e4 LT |
300 | } |
301 | ||
5a9dbfe0 | 302 | static inline void disable_eprom_write(pegasus_t *pegasus) |
1da177e4 LT |
303 | { |
304 | __u8 tmp; | |
1da177e4 | 305 | |
4a1728a2 PM |
306 | get_registers(pegasus, EthCtrl2, 1, &tmp); |
307 | set_register(pegasus, EpromCtrl, 0); | |
308 | set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE); | |
1da177e4 LT |
309 | } |
310 | ||
5a9dbfe0 | 311 | static int write_eprom_word(pegasus_t *pegasus, __u8 index, __u16 data) |
1da177e4 LT |
312 | { |
313 | int i; | |
314 | __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE }; | |
315 | int ret; | |
e3453f63 | 316 | __le16 le_data = cpu_to_le16(data); |
1da177e4 | 317 | |
4a1728a2 | 318 | set_registers(pegasus, EpromOffset, 4, d); |
1da177e4 | 319 | enable_eprom_write(pegasus); |
4a1728a2 | 320 | set_register(pegasus, EpromOffset, index); |
e3453f63 | 321 | set_registers(pegasus, EpromData, 2, &le_data); |
4a1728a2 | 322 | set_register(pegasus, EpromCtrl, EPROM_WRITE); |
1da177e4 LT |
323 | |
324 | for (i = 0; i < REG_TIMEOUT; i++) { | |
325 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); | |
7e713b82 DB |
326 | if (ret == -ESHUTDOWN) |
327 | goto fail; | |
1da177e4 LT |
328 | if (tmp & EPROM_DONE) |
329 | break; | |
330 | } | |
331 | disable_eprom_write(pegasus); | |
a475f603 JP |
332 | if (i >= REG_TIMEOUT) |
333 | goto fail; | |
334 | ||
335 | return ret; | |
336 | ||
7e713b82 | 337 | fail: |
a475f603 | 338 | netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__); |
4a1728a2 | 339 | return -ETIMEDOUT; |
1da177e4 LT |
340 | } |
341 | #endif /* PEGASUS_WRITE_EEPROM */ | |
342 | ||
5a9dbfe0 | 343 | static inline void get_node_id(pegasus_t *pegasus, __u8 *id) |
1da177e4 LT |
344 | { |
345 | int i; | |
346 | __u16 w16; | |
347 | ||
348 | for (i = 0; i < 3; i++) { | |
349 | read_eprom_word(pegasus, i, &w16); | |
da2bbdcc | 350 | ((__le16 *) id)[i] = cpu_to_le16(w16); |
1da177e4 LT |
351 | } |
352 | } | |
353 | ||
5a9dbfe0 | 354 | static void set_ethernet_addr(pegasus_t *pegasus) |
1da177e4 LT |
355 | { |
356 | __u8 node_id[6]; | |
1da177e4 | 357 | |
37cf3477 PM |
358 | if (pegasus->features & PEGASUS_II) { |
359 | get_registers(pegasus, 0x10, sizeof(node_id), node_id); | |
360 | } else { | |
361 | get_node_id(pegasus, node_id); | |
5a9dbfe0 | 362 | set_registers(pegasus, EthID, sizeof(node_id), node_id); |
37cf3477 | 363 | } |
5a9dbfe0 | 364 | memcpy(pegasus->net->dev_addr, node_id, sizeof(node_id)); |
1da177e4 LT |
365 | } |
366 | ||
5a9dbfe0 | 367 | static inline int reset_mac(pegasus_t *pegasus) |
1da177e4 LT |
368 | { |
369 | __u8 data = 0x8; | |
370 | int i; | |
1da177e4 | 371 | |
4a1728a2 | 372 | set_register(pegasus, EthCtrl1, data); |
1da177e4 | 373 | for (i = 0; i < REG_TIMEOUT; i++) { |
4a1728a2 | 374 | get_registers(pegasus, EthCtrl1, 1, &data); |
1da177e4 | 375 | if (~data & 0x08) { |
681f1623 | 376 | if (loopback) |
1da177e4 LT |
377 | break; |
378 | if (mii_mode && (pegasus->features & HAS_HOME_PNA)) | |
4a1728a2 | 379 | set_register(pegasus, Gpio1, 0x34); |
1da177e4 | 380 | else |
4a1728a2 PM |
381 | set_register(pegasus, Gpio1, 0x26); |
382 | set_register(pegasus, Gpio0, pegasus->features); | |
383 | set_register(pegasus, Gpio0, DEFAULT_GPIO_SET); | |
1da177e4 LT |
384 | break; |
385 | } | |
386 | } | |
387 | if (i == REG_TIMEOUT) | |
4a1728a2 | 388 | return -ETIMEDOUT; |
1da177e4 LT |
389 | |
390 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || | |
391 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { | |
4a1728a2 PM |
392 | set_register(pegasus, Gpio0, 0x24); |
393 | set_register(pegasus, Gpio0, 0x26); | |
1da177e4 LT |
394 | } |
395 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) { | |
396 | __u16 auxmode; | |
397 | read_mii_word(pegasus, 3, 0x1b, &auxmode); | |
2bd64701 PM |
398 | auxmode |= 4; |
399 | write_mii_word(pegasus, 3, 0x1b, &auxmode); | |
1da177e4 LT |
400 | } |
401 | ||
402 | return 0; | |
403 | } | |
404 | ||
405 | static int enable_net_traffic(struct net_device *dev, struct usb_device *usb) | |
406 | { | |
407 | __u16 linkpart; | |
408 | __u8 data[4]; | |
409 | pegasus_t *pegasus = netdev_priv(dev); | |
410 | int ret; | |
411 | ||
412 | read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart); | |
413 | data[0] = 0xc9; | |
414 | data[1] = 0; | |
415 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL)) | |
416 | data[1] |= 0x20; /* set full duplex */ | |
417 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF)) | |
418 | data[1] |= 0x10; /* set 100 Mbps */ | |
419 | if (mii_mode) | |
420 | data[1] = 0; | |
681f1623 | 421 | data[2] = loopback ? 0x09 : 0x01; |
1da177e4 | 422 | |
5a9dbfe0 | 423 | memcpy(pegasus->eth_regs, data, sizeof(data)); |
1da177e4 LT |
424 | ret = set_registers(pegasus, EthCtrl0, 3, data); |
425 | ||
426 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || | |
efafe6fb | 427 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 || |
1da177e4 LT |
428 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { |
429 | u16 auxmode; | |
430 | read_mii_word(pegasus, 0, 0x1b, &auxmode); | |
2bd64701 PM |
431 | auxmode |= 4; |
432 | write_mii_word(pegasus, 0, 0x1b, &auxmode); | |
1da177e4 LT |
433 | } |
434 | ||
4a1728a2 | 435 | return ret; |
1da177e4 LT |
436 | } |
437 | ||
7d12e780 | 438 | static void read_bulk_callback(struct urb *urb) |
1da177e4 LT |
439 | { |
440 | pegasus_t *pegasus = urb->context; | |
441 | struct net_device *net; | |
442 | int rx_status, count = urb->actual_length; | |
c94cb314 | 443 | int status = urb->status; |
1da177e4 LT |
444 | u8 *buf = urb->transfer_buffer; |
445 | __u16 pkt_len; | |
446 | ||
447 | if (!pegasus) | |
448 | return; | |
449 | ||
450 | net = pegasus->net; | |
451 | if (!netif_device_present(net) || !netif_running(net)) | |
452 | return; | |
453 | ||
c94cb314 | 454 | switch (status) { |
1da177e4 LT |
455 | case 0: |
456 | break; | |
38e2bfc9 | 457 | case -ETIME: |
a475f603 | 458 | netif_dbg(pegasus, rx_err, net, "reset MAC\n"); |
1da177e4 LT |
459 | pegasus->flags &= ~PEGASUS_RX_BUSY; |
460 | break; | |
461 | case -EPIPE: /* stall, or disconnect from TT */ | |
462 | /* FIXME schedule work to clear the halt */ | |
a475f603 | 463 | netif_warn(pegasus, rx_err, net, "no rx stall recovery\n"); |
1da177e4 LT |
464 | return; |
465 | case -ENOENT: | |
466 | case -ECONNRESET: | |
467 | case -ESHUTDOWN: | |
a475f603 | 468 | netif_dbg(pegasus, ifdown, net, "rx unlink, %d\n", status); |
1da177e4 LT |
469 | return; |
470 | default: | |
a475f603 | 471 | netif_dbg(pegasus, rx_err, net, "RX status %d\n", status); |
1da177e4 LT |
472 | goto goon; |
473 | } | |
474 | ||
475 | if (!count || count < 4) | |
476 | goto goon; | |
477 | ||
478 | rx_status = buf[count - 2]; | |
479 | if (rx_status & 0x1e) { | |
a475f603 JP |
480 | netif_dbg(pegasus, rx_err, net, |
481 | "RX packet error %x\n", rx_status); | |
1da177e4 | 482 | pegasus->stats.rx_errors++; |
5a9dbfe0 | 483 | if (rx_status & 0x06) /* long or runt */ |
1da177e4 LT |
484 | pegasus->stats.rx_length_errors++; |
485 | if (rx_status & 0x08) | |
486 | pegasus->stats.rx_crc_errors++; | |
5a9dbfe0 | 487 | if (rx_status & 0x10) /* extra bits */ |
1da177e4 LT |
488 | pegasus->stats.rx_frame_errors++; |
489 | goto goon; | |
490 | } | |
491 | if (pegasus->chip == 0x8513) { | |
492 | pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer); | |
493 | pkt_len &= 0x0fff; | |
494 | pegasus->rx_skb->data += 2; | |
495 | } else { | |
496 | pkt_len = buf[count - 3] << 8; | |
497 | pkt_len += buf[count - 4]; | |
498 | pkt_len &= 0xfff; | |
499 | pkt_len -= 8; | |
500 | } | |
501 | ||
a85a46f2 KV |
502 | /* |
503 | * If the packet is unreasonably long, quietly drop it rather than | |
504 | * kernel panicing by calling skb_put. | |
505 | */ | |
506 | if (pkt_len > PEGASUS_MTU) | |
507 | goto goon; | |
508 | ||
1da177e4 LT |
509 | /* |
510 | * at this point we are sure pegasus->rx_skb != NULL | |
511 | * so we go ahead and pass up the packet. | |
512 | */ | |
513 | skb_put(pegasus->rx_skb, pkt_len); | |
514 | pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net); | |
515 | netif_rx(pegasus->rx_skb); | |
516 | pegasus->stats.rx_packets++; | |
517 | pegasus->stats.rx_bytes += pkt_len; | |
518 | ||
519 | if (pegasus->flags & PEGASUS_UNPLUG) | |
520 | return; | |
521 | ||
313a58e4 PM |
522 | pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, PEGASUS_MTU, |
523 | GFP_ATOMIC); | |
1da177e4 LT |
524 | |
525 | if (pegasus->rx_skb == NULL) | |
526 | goto tl_sched; | |
527 | goon: | |
528 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, | |
529 | usb_rcvbulkpipe(pegasus->usb, 1), | |
530 | pegasus->rx_skb->data, PEGASUS_MTU + 8, | |
531 | read_bulk_callback, pegasus); | |
955a2608 DB |
532 | rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); |
533 | if (rx_status == -ENODEV) | |
534 | netif_device_detach(pegasus->net); | |
535 | else if (rx_status) { | |
1da177e4 LT |
536 | pegasus->flags |= PEGASUS_RX_URB_FAIL; |
537 | goto tl_sched; | |
538 | } else { | |
539 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; | |
540 | } | |
541 | ||
542 | return; | |
543 | ||
544 | tl_sched: | |
545 | tasklet_schedule(&pegasus->rx_tl); | |
546 | } | |
547 | ||
548 | static void rx_fixup(unsigned long data) | |
549 | { | |
550 | pegasus_t *pegasus; | |
955a2608 | 551 | int status; |
1da177e4 LT |
552 | |
553 | pegasus = (pegasus_t *) data; | |
554 | if (pegasus->flags & PEGASUS_UNPLUG) | |
555 | return; | |
556 | ||
1da177e4 LT |
557 | if (pegasus->flags & PEGASUS_RX_URB_FAIL) |
558 | if (pegasus->rx_skb) | |
559 | goto try_again; | |
5a9dbfe0 | 560 | if (pegasus->rx_skb == NULL) |
313a58e4 PM |
561 | pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, |
562 | PEGASUS_MTU, | |
563 | GFP_ATOMIC); | |
1da177e4 | 564 | if (pegasus->rx_skb == NULL) { |
a475f603 | 565 | netif_warn(pegasus, rx_err, pegasus->net, "low on memory\n"); |
1da177e4 | 566 | tasklet_schedule(&pegasus->rx_tl); |
313a58e4 | 567 | return; |
1da177e4 LT |
568 | } |
569 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, | |
570 | usb_rcvbulkpipe(pegasus->usb, 1), | |
571 | pegasus->rx_skb->data, PEGASUS_MTU + 8, | |
572 | read_bulk_callback, pegasus); | |
573 | try_again: | |
955a2608 DB |
574 | status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); |
575 | if (status == -ENODEV) | |
576 | netif_device_detach(pegasus->net); | |
577 | else if (status) { | |
1da177e4 LT |
578 | pegasus->flags |= PEGASUS_RX_URB_FAIL; |
579 | tasklet_schedule(&pegasus->rx_tl); | |
580 | } else { | |
581 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; | |
582 | } | |
1da177e4 LT |
583 | } |
584 | ||
7d12e780 | 585 | static void write_bulk_callback(struct urb *urb) |
1da177e4 LT |
586 | { |
587 | pegasus_t *pegasus = urb->context; | |
9351982b | 588 | struct net_device *net; |
c94cb314 | 589 | int status = urb->status; |
1da177e4 LT |
590 | |
591 | if (!pegasus) | |
592 | return; | |
593 | ||
9351982b MG |
594 | net = pegasus->net; |
595 | ||
1da177e4 LT |
596 | if (!netif_device_present(net) || !netif_running(net)) |
597 | return; | |
598 | ||
c94cb314 | 599 | switch (status) { |
1da177e4 LT |
600 | case -EPIPE: |
601 | /* FIXME schedule_work() to clear the tx halt */ | |
602 | netif_stop_queue(net); | |
a475f603 | 603 | netif_warn(pegasus, tx_err, net, "no tx stall recovery\n"); |
1da177e4 LT |
604 | return; |
605 | case -ENOENT: | |
606 | case -ECONNRESET: | |
607 | case -ESHUTDOWN: | |
a475f603 | 608 | netif_dbg(pegasus, ifdown, net, "tx unlink, %d\n", status); |
1da177e4 LT |
609 | return; |
610 | default: | |
a475f603 | 611 | netif_info(pegasus, tx_err, net, "TX status %d\n", status); |
1da177e4 LT |
612 | /* FALL THROUGH */ |
613 | case 0: | |
614 | break; | |
615 | } | |
616 | ||
1ae5dc34 | 617 | net->trans_start = jiffies; /* prevent tx timeout */ |
1da177e4 LT |
618 | netif_wake_queue(net); |
619 | } | |
620 | ||
7d12e780 | 621 | static void intr_callback(struct urb *urb) |
1da177e4 LT |
622 | { |
623 | pegasus_t *pegasus = urb->context; | |
624 | struct net_device *net; | |
c94cb314 | 625 | int res, status = urb->status; |
1da177e4 LT |
626 | |
627 | if (!pegasus) | |
628 | return; | |
629 | net = pegasus->net; | |
630 | ||
c94cb314 | 631 | switch (status) { |
1da177e4 LT |
632 | case 0: |
633 | break; | |
634 | case -ECONNRESET: /* unlink */ | |
635 | case -ENOENT: | |
636 | case -ESHUTDOWN: | |
637 | return; | |
638 | default: | |
639 | /* some Pegasus-I products report LOTS of data | |
640 | * toggle errors... avoid log spamming | |
641 | */ | |
a475f603 | 642 | netif_dbg(pegasus, timer, net, "intr status %d\n", status); |
1da177e4 LT |
643 | } |
644 | ||
645 | if (urb->actual_length >= 6) { | |
5a9dbfe0 | 646 | u8 *d = urb->transfer_buffer; |
1da177e4 LT |
647 | |
648 | /* byte 0 == tx_status1, reg 2B */ | |
649 | if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL | |
650 | |LATE_COL|JABBER_TIMEOUT)) { | |
651 | pegasus->stats.tx_errors++; | |
652 | if (d[0] & TX_UNDERRUN) | |
653 | pegasus->stats.tx_fifo_errors++; | |
654 | if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT)) | |
655 | pegasus->stats.tx_aborted_errors++; | |
656 | if (d[0] & LATE_COL) | |
657 | pegasus->stats.tx_window_errors++; | |
658 | } | |
659 | ||
660 | /* d[5].LINK_STATUS lies on some adapters. | |
661 | * d[0].NO_CARRIER kicks in only with failed TX. | |
662 | * ... so monitoring with MII may be safest. | |
663 | */ | |
1da177e4 LT |
664 | |
665 | /* bytes 3-4 == rx_lostpkt, reg 2E/2F */ | |
666 | pegasus->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4]; | |
667 | } | |
668 | ||
c94cb314 ON |
669 | res = usb_submit_urb(urb, GFP_ATOMIC); |
670 | if (res == -ENODEV) | |
955a2608 | 671 | netif_device_detach(pegasus->net); |
a475f603 JP |
672 | if (res) |
673 | netif_err(pegasus, timer, net, | |
674 | "can't resubmit interrupt urb, %d\n", res); | |
1da177e4 LT |
675 | } |
676 | ||
677 | static void pegasus_tx_timeout(struct net_device *net) | |
678 | { | |
679 | pegasus_t *pegasus = netdev_priv(net); | |
a475f603 | 680 | netif_warn(pegasus, timer, net, "tx timeout\n"); |
1da177e4 LT |
681 | usb_unlink_urb(pegasus->tx_urb); |
682 | pegasus->stats.tx_errors++; | |
683 | } | |
684 | ||
25a79c41 SH |
685 | static netdev_tx_t pegasus_start_xmit(struct sk_buff *skb, |
686 | struct net_device *net) | |
1da177e4 LT |
687 | { |
688 | pegasus_t *pegasus = netdev_priv(net); | |
689 | int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3; | |
690 | int res; | |
691 | __u16 l16 = skb->len; | |
692 | ||
693 | netif_stop_queue(net); | |
694 | ||
695 | ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16); | |
d626f62b | 696 | skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len); |
1da177e4 LT |
697 | usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb, |
698 | usb_sndbulkpipe(pegasus->usb, 2), | |
699 | pegasus->tx_buff, count, | |
700 | write_bulk_callback, pegasus); | |
701 | if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) { | |
a475f603 | 702 | netif_warn(pegasus, tx_err, net, "fail tx, %d\n", res); |
1da177e4 LT |
703 | switch (res) { |
704 | case -EPIPE: /* stall, or disconnect from TT */ | |
705 | /* cleanup should already have been scheduled */ | |
706 | break; | |
707 | case -ENODEV: /* disconnect() upcoming */ | |
9dd014eb | 708 | case -EPERM: |
955a2608 | 709 | netif_device_detach(pegasus->net); |
1da177e4 LT |
710 | break; |
711 | default: | |
712 | pegasus->stats.tx_errors++; | |
713 | netif_start_queue(net); | |
714 | } | |
715 | } else { | |
716 | pegasus->stats.tx_packets++; | |
717 | pegasus->stats.tx_bytes += skb->len; | |
1da177e4 LT |
718 | } |
719 | dev_kfree_skb(skb); | |
720 | ||
6ed10654 | 721 | return NETDEV_TX_OK; |
1da177e4 LT |
722 | } |
723 | ||
724 | static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev) | |
725 | { | |
726 | return &((pegasus_t *) netdev_priv(dev))->stats; | |
727 | } | |
728 | ||
5a9dbfe0 | 729 | static inline void disable_net_traffic(pegasus_t *pegasus) |
1da177e4 | 730 | { |
e3453f63 | 731 | __le16 tmp = cpu_to_le16(0); |
1da177e4 | 732 | |
e3453f63 | 733 | set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp); |
1da177e4 LT |
734 | } |
735 | ||
5a9dbfe0 | 736 | static inline void get_interrupt_interval(pegasus_t *pegasus) |
1da177e4 | 737 | { |
e3453f63 MB |
738 | u16 data; |
739 | u8 interval; | |
1da177e4 | 740 | |
e3453f63 MB |
741 | read_eprom_word(pegasus, 4, &data); |
742 | interval = data >> 8; | |
a85a46f2 | 743 | if (pegasus->usb->speed != USB_SPEED_HIGH) { |
e3453f63 | 744 | if (interval < 0x80) { |
a475f603 JP |
745 | netif_info(pegasus, timer, pegasus->net, |
746 | "intr interval changed from %ums to %ums\n", | |
747 | interval, 0x80); | |
e3453f63 MB |
748 | interval = 0x80; |
749 | data = (data & 0x00FF) | ((u16)interval << 8); | |
a85a46f2 | 750 | #ifdef PEGASUS_WRITE_EEPROM |
e3453f63 | 751 | write_eprom_word(pegasus, 4, data); |
1da177e4 | 752 | #endif |
a85a46f2 | 753 | } |
1da177e4 | 754 | } |
e3453f63 | 755 | pegasus->intr_interval = interval; |
1da177e4 LT |
756 | } |
757 | ||
758 | static void set_carrier(struct net_device *net) | |
759 | { | |
760 | pegasus_t *pegasus = netdev_priv(net); | |
761 | u16 tmp; | |
762 | ||
c43c49bd | 763 | if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp)) |
1da177e4 | 764 | return; |
a85a46f2 | 765 | |
1da177e4 LT |
766 | if (tmp & BMSR_LSTATUS) |
767 | netif_carrier_on(net); | |
768 | else | |
769 | netif_carrier_off(net); | |
770 | } | |
771 | ||
5a9dbfe0 | 772 | static void free_all_urbs(pegasus_t *pegasus) |
1da177e4 LT |
773 | { |
774 | usb_free_urb(pegasus->intr_urb); | |
775 | usb_free_urb(pegasus->tx_urb); | |
776 | usb_free_urb(pegasus->rx_urb); | |
1da177e4 LT |
777 | } |
778 | ||
5a9dbfe0 | 779 | static void unlink_all_urbs(pegasus_t *pegasus) |
1da177e4 LT |
780 | { |
781 | usb_kill_urb(pegasus->intr_urb); | |
782 | usb_kill_urb(pegasus->tx_urb); | |
783 | usb_kill_urb(pegasus->rx_urb); | |
1da177e4 LT |
784 | } |
785 | ||
5a9dbfe0 | 786 | static int alloc_urbs(pegasus_t *pegasus) |
1da177e4 | 787 | { |
323b3496 PM |
788 | int res = -ENOMEM; |
789 | ||
1da177e4 LT |
790 | pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
791 | if (!pegasus->rx_urb) { | |
323b3496 | 792 | return res; |
1da177e4 LT |
793 | } |
794 | pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
795 | if (!pegasus->tx_urb) { | |
796 | usb_free_urb(pegasus->rx_urb); | |
323b3496 | 797 | return res; |
1da177e4 LT |
798 | } |
799 | pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL); | |
800 | if (!pegasus->intr_urb) { | |
801 | usb_free_urb(pegasus->tx_urb); | |
802 | usb_free_urb(pegasus->rx_urb); | |
323b3496 | 803 | return res; |
1da177e4 LT |
804 | } |
805 | ||
323b3496 | 806 | return 0; |
1da177e4 LT |
807 | } |
808 | ||
809 | static int pegasus_open(struct net_device *net) | |
810 | { | |
811 | pegasus_t *pegasus = netdev_priv(net); | |
323b3496 | 812 | int res=-ENOMEM; |
1da177e4 LT |
813 | |
814 | if (pegasus->rx_skb == NULL) | |
313a58e4 PM |
815 | pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, |
816 | PEGASUS_MTU, | |
817 | GFP_KERNEL); | |
1da177e4 | 818 | if (!pegasus->rx_skb) |
323b3496 | 819 | goto exit; |
1da177e4 LT |
820 | |
821 | res = set_registers(pegasus, EthID, 6, net->dev_addr); | |
5a9dbfe0 | 822 | |
1da177e4 LT |
823 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, |
824 | usb_rcvbulkpipe(pegasus->usb, 1), | |
825 | pegasus->rx_skb->data, PEGASUS_MTU + 8, | |
826 | read_bulk_callback, pegasus); | |
827 | if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) { | |
955a2608 DB |
828 | if (res == -ENODEV) |
829 | netif_device_detach(pegasus->net); | |
a475f603 | 830 | netif_dbg(pegasus, ifup, net, "failed rx_urb, %d\n", res); |
1da177e4 LT |
831 | goto exit; |
832 | } | |
833 | ||
834 | usb_fill_int_urb(pegasus->intr_urb, pegasus->usb, | |
835 | usb_rcvintpipe(pegasus->usb, 3), | |
5a9dbfe0 | 836 | pegasus->intr_buff, sizeof(pegasus->intr_buff), |
1da177e4 LT |
837 | intr_callback, pegasus, pegasus->intr_interval); |
838 | if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) { | |
955a2608 DB |
839 | if (res == -ENODEV) |
840 | netif_device_detach(pegasus->net); | |
a475f603 | 841 | netif_dbg(pegasus, ifup, net, "failed intr_urb, %d\n", res); |
1da177e4 LT |
842 | usb_kill_urb(pegasus->rx_urb); |
843 | goto exit; | |
844 | } | |
323b3496 PM |
845 | res = enable_net_traffic(net, pegasus->usb); |
846 | if (res < 0) { | |
a475f603 JP |
847 | netif_dbg(pegasus, ifup, net, |
848 | "can't enable_net_traffic() - %d\n", res); | |
1da177e4 LT |
849 | res = -EIO; |
850 | usb_kill_urb(pegasus->rx_urb); | |
851 | usb_kill_urb(pegasus->intr_urb); | |
1da177e4 LT |
852 | goto exit; |
853 | } | |
854 | set_carrier(net); | |
855 | netif_start_queue(net); | |
a475f603 | 856 | netif_dbg(pegasus, ifup, net, "open\n"); |
1da177e4 LT |
857 | res = 0; |
858 | exit: | |
859 | return res; | |
860 | } | |
861 | ||
862 | static int pegasus_close(struct net_device *net) | |
863 | { | |
864 | pegasus_t *pegasus = netdev_priv(net); | |
865 | ||
866 | netif_stop_queue(net); | |
867 | if (!(pegasus->flags & PEGASUS_UNPLUG)) | |
868 | disable_net_traffic(pegasus); | |
869 | tasklet_kill(&pegasus->rx_tl); | |
870 | unlink_all_urbs(pegasus); | |
871 | ||
872 | return 0; | |
873 | } | |
874 | ||
875 | static void pegasus_get_drvinfo(struct net_device *dev, | |
876 | struct ethtool_drvinfo *info) | |
877 | { | |
878 | pegasus_t *pegasus = netdev_priv(dev); | |
7826d43f JP |
879 | |
880 | strlcpy(info->driver, driver_name, sizeof(info->driver)); | |
881 | strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); | |
5a9dbfe0 | 882 | usb_make_path(pegasus->usb, info->bus_info, sizeof(info->bus_info)); |
1da177e4 LT |
883 | } |
884 | ||
885 | /* also handles three patterns of some kind in hardware */ | |
886 | #define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY) | |
887 | ||
888 | static void | |
889 | pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
890 | { | |
891 | pegasus_t *pegasus = netdev_priv(dev); | |
892 | ||
893 | wol->supported = WAKE_MAGIC | WAKE_PHY; | |
894 | wol->wolopts = pegasus->wolopts; | |
895 | } | |
896 | ||
897 | static int | |
898 | pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
899 | { | |
900 | pegasus_t *pegasus = netdev_priv(dev); | |
901 | u8 reg78 = 0x04; | |
4fbc5b20 | 902 | int ret; |
5a9dbfe0 | 903 | |
1da177e4 LT |
904 | if (wol->wolopts & ~WOL_SUPPORTED) |
905 | return -EINVAL; | |
906 | ||
907 | if (wol->wolopts & WAKE_MAGIC) | |
908 | reg78 |= 0x80; | |
909 | if (wol->wolopts & WAKE_PHY) | |
910 | reg78 |= 0x40; | |
911 | /* FIXME this 0x10 bit still needs to get set in the chip... */ | |
912 | if (wol->wolopts) | |
913 | pegasus->eth_regs[0] |= 0x10; | |
914 | else | |
915 | pegasus->eth_regs[0] &= ~0x10; | |
916 | pegasus->wolopts = wol->wolopts; | |
4fbc5b20 ML |
917 | |
918 | ret = set_register(pegasus, WakeupControl, reg78); | |
919 | if (!ret) | |
920 | ret = device_set_wakeup_enable(&pegasus->usb->dev, | |
921 | wol->wolopts); | |
922 | return ret; | |
1da177e4 LT |
923 | } |
924 | ||
925 | static inline void pegasus_reset_wol(struct net_device *dev) | |
926 | { | |
927 | struct ethtool_wolinfo wol; | |
5a9dbfe0 | 928 | |
1da177e4 LT |
929 | memset(&wol, 0, sizeof wol); |
930 | (void) pegasus_set_wol(dev, &wol); | |
931 | } | |
932 | ||
933 | static int | |
934 | pegasus_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
935 | { | |
936 | pegasus_t *pegasus; | |
937 | ||
1da177e4 LT |
938 | pegasus = netdev_priv(dev); |
939 | mii_ethtool_gset(&pegasus->mii, ecmd); | |
1da177e4 LT |
940 | return 0; |
941 | } | |
942 | ||
943 | static int | |
944 | pegasus_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
945 | { | |
946 | pegasus_t *pegasus = netdev_priv(dev); | |
947 | return mii_ethtool_sset(&pegasus->mii, ecmd); | |
948 | } | |
949 | ||
950 | static int pegasus_nway_reset(struct net_device *dev) | |
951 | { | |
952 | pegasus_t *pegasus = netdev_priv(dev); | |
953 | return mii_nway_restart(&pegasus->mii); | |
954 | } | |
955 | ||
956 | static u32 pegasus_get_link(struct net_device *dev) | |
957 | { | |
958 | pegasus_t *pegasus = netdev_priv(dev); | |
959 | return mii_link_ok(&pegasus->mii); | |
960 | } | |
961 | ||
962 | static u32 pegasus_get_msglevel(struct net_device *dev) | |
963 | { | |
964 | pegasus_t *pegasus = netdev_priv(dev); | |
965 | return pegasus->msg_enable; | |
966 | } | |
967 | ||
968 | static void pegasus_set_msglevel(struct net_device *dev, u32 v) | |
969 | { | |
970 | pegasus_t *pegasus = netdev_priv(dev); | |
971 | pegasus->msg_enable = v; | |
972 | } | |
973 | ||
0fc0b732 | 974 | static const struct ethtool_ops ops = { |
1da177e4 LT |
975 | .get_drvinfo = pegasus_get_drvinfo, |
976 | .get_settings = pegasus_get_settings, | |
977 | .set_settings = pegasus_set_settings, | |
978 | .nway_reset = pegasus_nway_reset, | |
979 | .get_link = pegasus_get_link, | |
980 | .get_msglevel = pegasus_get_msglevel, | |
981 | .set_msglevel = pegasus_set_msglevel, | |
982 | .get_wol = pegasus_get_wol, | |
983 | .set_wol = pegasus_set_wol, | |
984 | }; | |
985 | ||
986 | static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd) | |
987 | { | |
5a9dbfe0 | 988 | __u16 *data = (__u16 *) &rq->ifr_ifru; |
1da177e4 LT |
989 | pegasus_t *pegasus = netdev_priv(net); |
990 | int res; | |
991 | ||
992 | switch (cmd) { | |
993 | case SIOCDEVPRIVATE: | |
994 | data[0] = pegasus->phy; | |
995 | case SIOCDEVPRIVATE + 1: | |
996 | read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]); | |
997 | res = 0; | |
998 | break; | |
999 | case SIOCDEVPRIVATE + 2: | |
1000 | if (!capable(CAP_NET_ADMIN)) | |
1001 | return -EPERM; | |
2bd64701 | 1002 | write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, &data[2]); |
1da177e4 LT |
1003 | res = 0; |
1004 | break; | |
1005 | default: | |
1006 | res = -EOPNOTSUPP; | |
1007 | } | |
1008 | return res; | |
1009 | } | |
1010 | ||
1011 | static void pegasus_set_multicast(struct net_device *net) | |
1012 | { | |
1013 | pegasus_t *pegasus = netdev_priv(net); | |
1014 | ||
1015 | if (net->flags & IFF_PROMISC) { | |
1016 | pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS; | |
a475f603 | 1017 | netif_info(pegasus, link, net, "Promiscuous mode enabled\n"); |
4cd24eaf | 1018 | } else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) { |
1da177e4 LT |
1019 | pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST; |
1020 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; | |
a475f603 | 1021 | netif_dbg(pegasus, link, net, "set allmulti\n"); |
1da177e4 LT |
1022 | } else { |
1023 | pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST; | |
1024 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; | |
1025 | } | |
323b3496 | 1026 | update_eth_regs_async(pegasus); |
1da177e4 LT |
1027 | } |
1028 | ||
5a9dbfe0 | 1029 | static __u8 mii_phy_probe(pegasus_t *pegasus) |
1da177e4 LT |
1030 | { |
1031 | int i; | |
1032 | __u16 tmp; | |
1033 | ||
1034 | for (i = 0; i < 32; i++) { | |
1035 | read_mii_word(pegasus, i, MII_BMSR, &tmp); | |
1036 | if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0) | |
1037 | continue; | |
1038 | else | |
1039 | return i; | |
1040 | } | |
1041 | ||
1042 | return 0xff; | |
1043 | } | |
1044 | ||
5a9dbfe0 | 1045 | static inline void setup_pegasus_II(pegasus_t *pegasus) |
1da177e4 LT |
1046 | { |
1047 | __u8 data = 0xa5; | |
5a9dbfe0 | 1048 | |
4a1728a2 PM |
1049 | set_register(pegasus, Reg1d, 0); |
1050 | set_register(pegasus, Reg7b, 1); | |
1da177e4 LT |
1051 | mdelay(100); |
1052 | if ((pegasus->features & HAS_HOME_PNA) && mii_mode) | |
4a1728a2 | 1053 | set_register(pegasus, Reg7b, 0); |
1da177e4 | 1054 | else |
4a1728a2 | 1055 | set_register(pegasus, Reg7b, 2); |
1da177e4 | 1056 | |
4a1728a2 PM |
1057 | set_register(pegasus, 0x83, data); |
1058 | get_registers(pegasus, 0x83, 1, &data); | |
1da177e4 | 1059 | |
5a9dbfe0 | 1060 | if (data == 0xa5) |
1da177e4 | 1061 | pegasus->chip = 0x8513; |
5a9dbfe0 | 1062 | else |
1da177e4 | 1063 | pegasus->chip = 0; |
1da177e4 | 1064 | |
4a1728a2 PM |
1065 | set_register(pegasus, 0x80, 0xc0); |
1066 | set_register(pegasus, 0x83, 0xff); | |
1067 | set_register(pegasus, 0x84, 0x01); | |
5a9dbfe0 | 1068 | |
1da177e4 | 1069 | if (pegasus->features & HAS_HOME_PNA && mii_mode) |
4a1728a2 | 1070 | set_register(pegasus, Reg81, 6); |
1da177e4 | 1071 | else |
4a1728a2 | 1072 | set_register(pegasus, Reg81, 2); |
1da177e4 LT |
1073 | } |
1074 | ||
1075 | ||
cda2836d | 1076 | static int pegasus_count; |
5a9dbfe0 | 1077 | static struct workqueue_struct *pegasus_workqueue; |
1da177e4 LT |
1078 | #define CARRIER_CHECK_DELAY (2 * HZ) |
1079 | ||
c4028958 | 1080 | static void check_carrier(struct work_struct *work) |
1da177e4 | 1081 | { |
c4028958 | 1082 | pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work); |
1da177e4 LT |
1083 | set_carrier(pegasus->net); |
1084 | if (!(pegasus->flags & PEGASUS_UNPLUG)) { | |
1085 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, | |
1086 | CARRIER_CHECK_DELAY); | |
1087 | } | |
1088 | } | |
1089 | ||
4f63135e BC |
1090 | static int pegasus_blacklisted(struct usb_device *udev) |
1091 | { | |
1092 | struct usb_device_descriptor *udd = &udev->descriptor; | |
1093 | ||
1094 | /* Special quirk to keep the driver from handling the Belkin Bluetooth | |
1095 | * dongle which happens to have the same ID. | |
1096 | */ | |
e3453f63 MB |
1097 | if ((udd->idVendor == cpu_to_le16(VENDOR_BELKIN)) && |
1098 | (udd->idProduct == cpu_to_le16(0x0121)) && | |
4f63135e BC |
1099 | (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) && |
1100 | (udd->bDeviceProtocol == 1)) | |
1101 | return 1; | |
1102 | ||
1103 | return 0; | |
1104 | } | |
1105 | ||
cda2836d DB |
1106 | /* we rely on probe() and remove() being serialized so we |
1107 | * don't need extra locking on pegasus_count. | |
1108 | */ | |
1109 | static void pegasus_dec_workqueue(void) | |
1110 | { | |
1111 | pegasus_count--; | |
1112 | if (pegasus_count == 0) { | |
1113 | destroy_workqueue(pegasus_workqueue); | |
1114 | pegasus_workqueue = NULL; | |
1115 | } | |
1116 | } | |
1117 | ||
1da177e4 LT |
1118 | static int pegasus_probe(struct usb_interface *intf, |
1119 | const struct usb_device_id *id) | |
1120 | { | |
1121 | struct usb_device *dev = interface_to_usbdev(intf); | |
1122 | struct net_device *net; | |
1123 | pegasus_t *pegasus; | |
1124 | int dev_index = id - pegasus_ids; | |
1125 | int res = -ENOMEM; | |
1126 | ||
cda2836d DB |
1127 | if (pegasus_blacklisted(dev)) |
1128 | return -ENODEV; | |
4f63135e | 1129 | |
cda2836d DB |
1130 | if (pegasus_count == 0) { |
1131 | pegasus_workqueue = create_singlethread_workqueue("pegasus"); | |
1132 | if (!pegasus_workqueue) | |
1133 | return -ENOMEM; | |
4f63135e | 1134 | } |
cda2836d DB |
1135 | pegasus_count++; |
1136 | ||
1da177e4 | 1137 | net = alloc_etherdev(sizeof(struct pegasus)); |
41de8d4c | 1138 | if (!net) |
1da177e4 | 1139 | goto out; |
1da177e4 LT |
1140 | |
1141 | pegasus = netdev_priv(net); | |
1da177e4 | 1142 | pegasus->dev_index = dev_index; |
1da177e4 | 1143 | |
323b3496 PM |
1144 | res = alloc_urbs(pegasus); |
1145 | if (res < 0) { | |
1da177e4 LT |
1146 | dev_err(&intf->dev, "can't allocate %s\n", "urbs"); |
1147 | goto out1; | |
1148 | } | |
1149 | ||
1150 | tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus); | |
1151 | ||
c4028958 | 1152 | INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier); |
1da177e4 LT |
1153 | |
1154 | pegasus->intf = intf; | |
1155 | pegasus->usb = dev; | |
1156 | pegasus->net = net; | |
8cb89571 ON |
1157 | |
1158 | ||
1da177e4 | 1159 | net->watchdog_timeo = PEGASUS_TX_TIMEOUT; |
8cb89571 | 1160 | net->netdev_ops = &pegasus_netdev_ops; |
1da177e4 LT |
1161 | SET_ETHTOOL_OPS(net, &ops); |
1162 | pegasus->mii.dev = net; | |
1163 | pegasus->mii.mdio_read = mdio_read; | |
1164 | pegasus->mii.mdio_write = mdio_write; | |
1165 | pegasus->mii.phy_id_mask = 0x1f; | |
1166 | pegasus->mii.reg_num_mask = 0x1f; | |
5a9dbfe0 | 1167 | pegasus->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV |
1da177e4 LT |
1168 | | NETIF_MSG_PROBE | NETIF_MSG_LINK); |
1169 | ||
1170 | pegasus->features = usb_dev_id[dev_index].private; | |
1171 | get_interrupt_interval(pegasus); | |
1172 | if (reset_mac(pegasus)) { | |
1173 | dev_err(&intf->dev, "can't reset MAC\n"); | |
1174 | res = -EIO; | |
1175 | goto out2; | |
1176 | } | |
1177 | set_ethernet_addr(pegasus); | |
1da177e4 LT |
1178 | if (pegasus->features & PEGASUS_II) { |
1179 | dev_info(&intf->dev, "setup Pegasus II specific registers\n"); | |
1180 | setup_pegasus_II(pegasus); | |
1181 | } | |
1182 | pegasus->phy = mii_phy_probe(pegasus); | |
1183 | if (pegasus->phy == 0xff) { | |
1184 | dev_warn(&intf->dev, "can't locate MII phy, using default\n"); | |
1185 | pegasus->phy = 1; | |
1186 | } | |
1187 | pegasus->mii.phy_id = pegasus->phy; | |
1188 | usb_set_intfdata(intf, pegasus); | |
1189 | SET_NETDEV_DEV(net, &intf->dev); | |
1190 | pegasus_reset_wol(net); | |
1191 | res = register_netdev(net); | |
1192 | if (res) | |
1193 | goto out3; | |
1194 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, | |
323b3496 PM |
1195 | CARRIER_CHECK_DELAY); |
1196 | dev_info(&intf->dev, "%s, %s, %pM\n", net->name, | |
1197 | usb_dev_id[dev_index].name, net->dev_addr); | |
1da177e4 LT |
1198 | return 0; |
1199 | ||
1200 | out3: | |
1201 | usb_set_intfdata(intf, NULL); | |
1da177e4 LT |
1202 | out2: |
1203 | free_all_urbs(pegasus); | |
1204 | out1: | |
1205 | free_netdev(net); | |
1206 | out: | |
cda2836d | 1207 | pegasus_dec_workqueue(); |
1da177e4 LT |
1208 | return res; |
1209 | } | |
1210 | ||
1211 | static void pegasus_disconnect(struct usb_interface *intf) | |
1212 | { | |
1213 | struct pegasus *pegasus = usb_get_intfdata(intf); | |
1214 | ||
1215 | usb_set_intfdata(intf, NULL); | |
1216 | if (!pegasus) { | |
1217 | dev_dbg(&intf->dev, "unregistering non-bound device?\n"); | |
1218 | return; | |
1219 | } | |
1220 | ||
1221 | pegasus->flags |= PEGASUS_UNPLUG; | |
1222 | cancel_delayed_work(&pegasus->carrier_check); | |
1223 | unregister_netdev(pegasus->net); | |
a85a46f2 | 1224 | unlink_all_urbs(pegasus); |
1da177e4 | 1225 | free_all_urbs(pegasus); |
4c13eb66 | 1226 | if (pegasus->rx_skb != NULL) { |
1da177e4 | 1227 | dev_kfree_skb(pegasus->rx_skb); |
4c13eb66 ACM |
1228 | pegasus->rx_skb = NULL; |
1229 | } | |
1da177e4 | 1230 | free_netdev(pegasus->net); |
cda2836d | 1231 | pegasus_dec_workqueue(); |
1da177e4 LT |
1232 | } |
1233 | ||
5a9dbfe0 | 1234 | static int pegasus_suspend(struct usb_interface *intf, pm_message_t message) |
1da177e4 LT |
1235 | { |
1236 | struct pegasus *pegasus = usb_get_intfdata(intf); | |
5a9dbfe0 NK |
1237 | |
1238 | netif_device_detach(pegasus->net); | |
7e713b82 | 1239 | cancel_delayed_work(&pegasus->carrier_check); |
27d72e85 | 1240 | if (netif_running(pegasus->net)) { |
27d72e85 DB |
1241 | usb_kill_urb(pegasus->rx_urb); |
1242 | usb_kill_urb(pegasus->intr_urb); | |
1243 | } | |
1da177e4 LT |
1244 | return 0; |
1245 | } | |
1246 | ||
5a9dbfe0 | 1247 | static int pegasus_resume(struct usb_interface *intf) |
1da177e4 LT |
1248 | { |
1249 | struct pegasus *pegasus = usb_get_intfdata(intf); | |
1250 | ||
5a9dbfe0 | 1251 | netif_device_attach(pegasus->net); |
27d72e85 DB |
1252 | if (netif_running(pegasus->net)) { |
1253 | pegasus->rx_urb->status = 0; | |
1254 | pegasus->rx_urb->actual_length = 0; | |
7d12e780 | 1255 | read_bulk_callback(pegasus->rx_urb); |
27d72e85 DB |
1256 | |
1257 | pegasus->intr_urb->status = 0; | |
1258 | pegasus->intr_urb->actual_length = 0; | |
7d12e780 | 1259 | intr_callback(pegasus->intr_urb); |
27d72e85 | 1260 | } |
7e713b82 DB |
1261 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, |
1262 | CARRIER_CHECK_DELAY); | |
1da177e4 LT |
1263 | return 0; |
1264 | } | |
1265 | ||
8cb89571 ON |
1266 | static const struct net_device_ops pegasus_netdev_ops = { |
1267 | .ndo_open = pegasus_open, | |
1268 | .ndo_stop = pegasus_close, | |
1269 | .ndo_do_ioctl = pegasus_ioctl, | |
1270 | .ndo_start_xmit = pegasus_start_xmit, | |
afc4b13d | 1271 | .ndo_set_rx_mode = pegasus_set_multicast, |
8cb89571 ON |
1272 | .ndo_get_stats = pegasus_netdev_stats, |
1273 | .ndo_tx_timeout = pegasus_tx_timeout, | |
635ecaa7 | 1274 | .ndo_change_mtu = eth_change_mtu, |
240c102d BH |
1275 | .ndo_set_mac_address = eth_mac_addr, |
1276 | .ndo_validate_addr = eth_validate_addr, | |
8cb89571 ON |
1277 | }; |
1278 | ||
1da177e4 LT |
1279 | static struct usb_driver pegasus_driver = { |
1280 | .name = driver_name, | |
1281 | .probe = pegasus_probe, | |
1282 | .disconnect = pegasus_disconnect, | |
1283 | .id_table = pegasus_ids, | |
1284 | .suspend = pegasus_suspend, | |
1285 | .resume = pegasus_resume, | |
e1f12eb6 | 1286 | .disable_hub_initiated_lpm = 1, |
1da177e4 LT |
1287 | }; |
1288 | ||
cda2836d | 1289 | static void __init parse_id(char *id) |
a4f81a61 | 1290 | { |
5a9dbfe0 NK |
1291 | unsigned int vendor_id = 0, device_id = 0, flags = 0, i = 0; |
1292 | char *token, *name = NULL; | |
a4f81a61 Y |
1293 | |
1294 | if ((token = strsep(&id, ":")) != NULL) | |
1295 | name = token; | |
1296 | /* name now points to a null terminated string*/ | |
1297 | if ((token = strsep(&id, ":")) != NULL) | |
1298 | vendor_id = simple_strtoul(token, NULL, 16); | |
1299 | if ((token = strsep(&id, ":")) != NULL) | |
1300 | device_id = simple_strtoul(token, NULL, 16); | |
1301 | flags = simple_strtoul(id, NULL, 16); | |
1302 | pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n", | |
5a9dbfe0 | 1303 | driver_name, name, vendor_id, device_id, flags); |
a4f81a61 Y |
1304 | |
1305 | if (vendor_id > 0x10000 || vendor_id == 0) | |
1306 | return; | |
1307 | if (device_id > 0x10000 || device_id == 0) | |
1308 | return; | |
1309 | ||
5a9dbfe0 | 1310 | for (i = 0; usb_dev_id[i].name; i++); |
a4f81a61 Y |
1311 | usb_dev_id[i].name = name; |
1312 | usb_dev_id[i].vendor = vendor_id; | |
1313 | usb_dev_id[i].device = device_id; | |
1314 | usb_dev_id[i].private = flags; | |
1315 | pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
1316 | pegasus_ids[i].idVendor = vendor_id; | |
1317 | pegasus_ids[i].idProduct = device_id; | |
1318 | } | |
1319 | ||
1da177e4 LT |
1320 | static int __init pegasus_init(void) |
1321 | { | |
1322 | pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION); | |
a4f81a61 Y |
1323 | if (devid) |
1324 | parse_id(devid); | |
1da177e4 LT |
1325 | return usb_register(&pegasus_driver); |
1326 | } | |
1327 | ||
1328 | static void __exit pegasus_exit(void) | |
1329 | { | |
1da177e4 LT |
1330 | usb_deregister(&pegasus_driver); |
1331 | } | |
1332 | ||
1333 | module_init(pegasus_init); | |
1334 | module_exit(pegasus_exit); |