Commit | Line | Data |
---|---|---|
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); |
3d64fc70 | 259 | u16 data = val; |
1da177e4 | 260 | |
3d64fc70 | 261 | write_mii_word(pegasus, phy_id, loc, &data); |
1da177e4 LT |
262 | } |
263 | ||
5a9dbfe0 | 264 | static int read_eprom_word(pegasus_t *pegasus, __u8 index, __u16 *retdata) |
1da177e4 LT |
265 | { |
266 | int i; | |
267 | __u8 tmp; | |
268 | __le16 retdatai; | |
269 | int ret; | |
270 | ||
4a1728a2 PM |
271 | set_register(pegasus, EpromCtrl, 0); |
272 | set_register(pegasus, EpromOffset, index); | |
273 | set_register(pegasus, EpromCtrl, EPROM_READ); | |
1da177e4 LT |
274 | |
275 | for (i = 0; i < REG_TIMEOUT; i++) { | |
276 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); | |
277 | if (tmp & EPROM_DONE) | |
278 | break; | |
7e713b82 DB |
279 | if (ret == -ESHUTDOWN) |
280 | goto fail; | |
1da177e4 | 281 | } |
a475f603 JP |
282 | if (i >= REG_TIMEOUT) |
283 | goto fail; | |
284 | ||
285 | ret = get_registers(pegasus, EpromData, 2, &retdatai); | |
286 | *retdata = le16_to_cpu(retdatai); | |
287 | return ret; | |
1da177e4 | 288 | |
7e713b82 | 289 | fail: |
a475f603 | 290 | netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__); |
4a1728a2 | 291 | return -ETIMEDOUT; |
1da177e4 LT |
292 | } |
293 | ||
294 | #ifdef PEGASUS_WRITE_EEPROM | |
5a9dbfe0 | 295 | static inline void enable_eprom_write(pegasus_t *pegasus) |
1da177e4 LT |
296 | { |
297 | __u8 tmp; | |
1da177e4 | 298 | |
4a1728a2 PM |
299 | get_registers(pegasus, EthCtrl2, 1, &tmp); |
300 | set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE); | |
1da177e4 LT |
301 | } |
302 | ||
5a9dbfe0 | 303 | static inline void disable_eprom_write(pegasus_t *pegasus) |
1da177e4 LT |
304 | { |
305 | __u8 tmp; | |
1da177e4 | 306 | |
4a1728a2 PM |
307 | get_registers(pegasus, EthCtrl2, 1, &tmp); |
308 | set_register(pegasus, EpromCtrl, 0); | |
309 | set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE); | |
1da177e4 LT |
310 | } |
311 | ||
5a9dbfe0 | 312 | static int write_eprom_word(pegasus_t *pegasus, __u8 index, __u16 data) |
1da177e4 LT |
313 | { |
314 | int i; | |
315 | __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE }; | |
316 | int ret; | |
e3453f63 | 317 | __le16 le_data = cpu_to_le16(data); |
1da177e4 | 318 | |
4a1728a2 | 319 | set_registers(pegasus, EpromOffset, 4, d); |
1da177e4 | 320 | enable_eprom_write(pegasus); |
4a1728a2 | 321 | set_register(pegasus, EpromOffset, index); |
e3453f63 | 322 | set_registers(pegasus, EpromData, 2, &le_data); |
4a1728a2 | 323 | set_register(pegasus, EpromCtrl, EPROM_WRITE); |
1da177e4 LT |
324 | |
325 | for (i = 0; i < REG_TIMEOUT; i++) { | |
326 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); | |
7e713b82 DB |
327 | if (ret == -ESHUTDOWN) |
328 | goto fail; | |
1da177e4 LT |
329 | if (tmp & EPROM_DONE) |
330 | break; | |
331 | } | |
332 | disable_eprom_write(pegasus); | |
a475f603 JP |
333 | if (i >= REG_TIMEOUT) |
334 | goto fail; | |
335 | ||
336 | return ret; | |
337 | ||
7e713b82 | 338 | fail: |
a475f603 | 339 | netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__); |
4a1728a2 | 340 | return -ETIMEDOUT; |
1da177e4 LT |
341 | } |
342 | #endif /* PEGASUS_WRITE_EEPROM */ | |
343 | ||
5a9dbfe0 | 344 | static inline void get_node_id(pegasus_t *pegasus, __u8 *id) |
1da177e4 LT |
345 | { |
346 | int i; | |
347 | __u16 w16; | |
348 | ||
349 | for (i = 0; i < 3; i++) { | |
350 | read_eprom_word(pegasus, i, &w16); | |
da2bbdcc | 351 | ((__le16 *) id)[i] = cpu_to_le16(w16); |
1da177e4 LT |
352 | } |
353 | } | |
354 | ||
5a9dbfe0 | 355 | static void set_ethernet_addr(pegasus_t *pegasus) |
1da177e4 LT |
356 | { |
357 | __u8 node_id[6]; | |
1da177e4 | 358 | |
37cf3477 PM |
359 | if (pegasus->features & PEGASUS_II) { |
360 | get_registers(pegasus, 0x10, sizeof(node_id), node_id); | |
361 | } else { | |
362 | get_node_id(pegasus, node_id); | |
5a9dbfe0 | 363 | set_registers(pegasus, EthID, sizeof(node_id), node_id); |
37cf3477 | 364 | } |
5a9dbfe0 | 365 | memcpy(pegasus->net->dev_addr, node_id, sizeof(node_id)); |
1da177e4 LT |
366 | } |
367 | ||
5a9dbfe0 | 368 | static inline int reset_mac(pegasus_t *pegasus) |
1da177e4 LT |
369 | { |
370 | __u8 data = 0x8; | |
371 | int i; | |
1da177e4 | 372 | |
4a1728a2 | 373 | set_register(pegasus, EthCtrl1, data); |
1da177e4 | 374 | for (i = 0; i < REG_TIMEOUT; i++) { |
4a1728a2 | 375 | get_registers(pegasus, EthCtrl1, 1, &data); |
1da177e4 | 376 | if (~data & 0x08) { |
681f1623 | 377 | if (loopback) |
1da177e4 LT |
378 | break; |
379 | if (mii_mode && (pegasus->features & HAS_HOME_PNA)) | |
4a1728a2 | 380 | set_register(pegasus, Gpio1, 0x34); |
1da177e4 | 381 | else |
4a1728a2 PM |
382 | set_register(pegasus, Gpio1, 0x26); |
383 | set_register(pegasus, Gpio0, pegasus->features); | |
384 | set_register(pegasus, Gpio0, DEFAULT_GPIO_SET); | |
1da177e4 LT |
385 | break; |
386 | } | |
387 | } | |
388 | if (i == REG_TIMEOUT) | |
4a1728a2 | 389 | return -ETIMEDOUT; |
1da177e4 LT |
390 | |
391 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || | |
392 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { | |
4a1728a2 PM |
393 | set_register(pegasus, Gpio0, 0x24); |
394 | set_register(pegasus, Gpio0, 0x26); | |
1da177e4 LT |
395 | } |
396 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) { | |
397 | __u16 auxmode; | |
398 | read_mii_word(pegasus, 3, 0x1b, &auxmode); | |
2bd64701 PM |
399 | auxmode |= 4; |
400 | write_mii_word(pegasus, 3, 0x1b, &auxmode); | |
1da177e4 LT |
401 | } |
402 | ||
403 | return 0; | |
404 | } | |
405 | ||
406 | static int enable_net_traffic(struct net_device *dev, struct usb_device *usb) | |
407 | { | |
408 | __u16 linkpart; | |
409 | __u8 data[4]; | |
410 | pegasus_t *pegasus = netdev_priv(dev); | |
411 | int ret; | |
412 | ||
413 | read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart); | |
1a8deec0 | 414 | data[0] = 0xc8; /* TX & RX enable, append status, no CRC */ |
1da177e4 LT |
415 | data[1] = 0; |
416 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL)) | |
417 | data[1] |= 0x20; /* set full duplex */ | |
418 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF)) | |
419 | data[1] |= 0x10; /* set 100 Mbps */ | |
420 | if (mii_mode) | |
421 | data[1] = 0; | |
681f1623 | 422 | data[2] = loopback ? 0x09 : 0x01; |
1da177e4 | 423 | |
5a9dbfe0 | 424 | memcpy(pegasus->eth_regs, data, sizeof(data)); |
1da177e4 LT |
425 | ret = set_registers(pegasus, EthCtrl0, 3, data); |
426 | ||
427 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || | |
efafe6fb | 428 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 || |
1da177e4 LT |
429 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { |
430 | u16 auxmode; | |
431 | read_mii_word(pegasus, 0, 0x1b, &auxmode); | |
2bd64701 PM |
432 | auxmode |= 4; |
433 | write_mii_word(pegasus, 0, 0x1b, &auxmode); | |
1da177e4 LT |
434 | } |
435 | ||
4a1728a2 | 436 | return ret; |
1da177e4 LT |
437 | } |
438 | ||
7d12e780 | 439 | static void read_bulk_callback(struct urb *urb) |
1da177e4 LT |
440 | { |
441 | pegasus_t *pegasus = urb->context; | |
442 | struct net_device *net; | |
443 | int rx_status, count = urb->actual_length; | |
c94cb314 | 444 | int status = urb->status; |
1da177e4 LT |
445 | u8 *buf = urb->transfer_buffer; |
446 | __u16 pkt_len; | |
447 | ||
448 | if (!pegasus) | |
449 | return; | |
450 | ||
451 | net = pegasus->net; | |
452 | if (!netif_device_present(net) || !netif_running(net)) | |
453 | return; | |
454 | ||
c94cb314 | 455 | switch (status) { |
1da177e4 LT |
456 | case 0: |
457 | break; | |
38e2bfc9 | 458 | case -ETIME: |
a475f603 | 459 | netif_dbg(pegasus, rx_err, net, "reset MAC\n"); |
1da177e4 LT |
460 | pegasus->flags &= ~PEGASUS_RX_BUSY; |
461 | break; | |
462 | case -EPIPE: /* stall, or disconnect from TT */ | |
463 | /* FIXME schedule work to clear the halt */ | |
a475f603 | 464 | netif_warn(pegasus, rx_err, net, "no rx stall recovery\n"); |
1da177e4 LT |
465 | return; |
466 | case -ENOENT: | |
467 | case -ECONNRESET: | |
468 | case -ESHUTDOWN: | |
a475f603 | 469 | netif_dbg(pegasus, ifdown, net, "rx unlink, %d\n", status); |
1da177e4 LT |
470 | return; |
471 | default: | |
a475f603 | 472 | netif_dbg(pegasus, rx_err, net, "RX status %d\n", status); |
1da177e4 LT |
473 | goto goon; |
474 | } | |
475 | ||
476 | if (!count || count < 4) | |
477 | goto goon; | |
478 | ||
479 | rx_status = buf[count - 2]; | |
480 | if (rx_status & 0x1e) { | |
a475f603 JP |
481 | netif_dbg(pegasus, rx_err, net, |
482 | "RX packet error %x\n", rx_status); | |
1da177e4 | 483 | pegasus->stats.rx_errors++; |
5a9dbfe0 | 484 | if (rx_status & 0x06) /* long or runt */ |
1da177e4 LT |
485 | pegasus->stats.rx_length_errors++; |
486 | if (rx_status & 0x08) | |
487 | pegasus->stats.rx_crc_errors++; | |
5a9dbfe0 | 488 | if (rx_status & 0x10) /* extra bits */ |
1da177e4 LT |
489 | pegasus->stats.rx_frame_errors++; |
490 | goto goon; | |
491 | } | |
492 | if (pegasus->chip == 0x8513) { | |
493 | pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer); | |
494 | pkt_len &= 0x0fff; | |
495 | pegasus->rx_skb->data += 2; | |
496 | } else { | |
497 | pkt_len = buf[count - 3] << 8; | |
498 | pkt_len += buf[count - 4]; | |
499 | pkt_len &= 0xfff; | |
1a8deec0 | 500 | pkt_len -= 4; |
1da177e4 LT |
501 | } |
502 | ||
a85a46f2 KV |
503 | /* |
504 | * If the packet is unreasonably long, quietly drop it rather than | |
505 | * kernel panicing by calling skb_put. | |
506 | */ | |
507 | if (pkt_len > PEGASUS_MTU) | |
508 | goto goon; | |
509 | ||
1da177e4 LT |
510 | /* |
511 | * at this point we are sure pegasus->rx_skb != NULL | |
512 | * so we go ahead and pass up the packet. | |
513 | */ | |
514 | skb_put(pegasus->rx_skb, pkt_len); | |
515 | pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net); | |
516 | netif_rx(pegasus->rx_skb); | |
517 | pegasus->stats.rx_packets++; | |
518 | pegasus->stats.rx_bytes += pkt_len; | |
519 | ||
520 | if (pegasus->flags & PEGASUS_UNPLUG) | |
521 | return; | |
522 | ||
313a58e4 PM |
523 | pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, PEGASUS_MTU, |
524 | GFP_ATOMIC); | |
1da177e4 LT |
525 | |
526 | if (pegasus->rx_skb == NULL) | |
527 | goto tl_sched; | |
528 | goon: | |
529 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, | |
530 | usb_rcvbulkpipe(pegasus->usb, 1), | |
b7302ca0 | 531 | pegasus->rx_skb->data, PEGASUS_MTU, |
1da177e4 | 532 | read_bulk_callback, pegasus); |
955a2608 DB |
533 | rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); |
534 | if (rx_status == -ENODEV) | |
535 | netif_device_detach(pegasus->net); | |
536 | else if (rx_status) { | |
1da177e4 LT |
537 | pegasus->flags |= PEGASUS_RX_URB_FAIL; |
538 | goto tl_sched; | |
539 | } else { | |
540 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; | |
541 | } | |
542 | ||
543 | return; | |
544 | ||
545 | tl_sched: | |
546 | tasklet_schedule(&pegasus->rx_tl); | |
547 | } | |
548 | ||
549 | static void rx_fixup(unsigned long data) | |
550 | { | |
551 | pegasus_t *pegasus; | |
955a2608 | 552 | int status; |
1da177e4 LT |
553 | |
554 | pegasus = (pegasus_t *) data; | |
555 | if (pegasus->flags & PEGASUS_UNPLUG) | |
556 | return; | |
557 | ||
1da177e4 LT |
558 | if (pegasus->flags & PEGASUS_RX_URB_FAIL) |
559 | if (pegasus->rx_skb) | |
560 | goto try_again; | |
5a9dbfe0 | 561 | if (pegasus->rx_skb == NULL) |
313a58e4 PM |
562 | pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, |
563 | PEGASUS_MTU, | |
564 | GFP_ATOMIC); | |
1da177e4 | 565 | if (pegasus->rx_skb == NULL) { |
a475f603 | 566 | netif_warn(pegasus, rx_err, pegasus->net, "low on memory\n"); |
1da177e4 | 567 | tasklet_schedule(&pegasus->rx_tl); |
313a58e4 | 568 | return; |
1da177e4 LT |
569 | } |
570 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, | |
571 | usb_rcvbulkpipe(pegasus->usb, 1), | |
b7302ca0 | 572 | pegasus->rx_skb->data, PEGASUS_MTU, |
1da177e4 LT |
573 | read_bulk_callback, pegasus); |
574 | try_again: | |
955a2608 DB |
575 | status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); |
576 | if (status == -ENODEV) | |
577 | netif_device_detach(pegasus->net); | |
578 | else if (status) { | |
1da177e4 LT |
579 | pegasus->flags |= PEGASUS_RX_URB_FAIL; |
580 | tasklet_schedule(&pegasus->rx_tl); | |
581 | } else { | |
582 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; | |
583 | } | |
1da177e4 LT |
584 | } |
585 | ||
7d12e780 | 586 | static void write_bulk_callback(struct urb *urb) |
1da177e4 LT |
587 | { |
588 | pegasus_t *pegasus = urb->context; | |
9351982b | 589 | struct net_device *net; |
c94cb314 | 590 | int status = urb->status; |
1da177e4 LT |
591 | |
592 | if (!pegasus) | |
593 | return; | |
594 | ||
9351982b MG |
595 | net = pegasus->net; |
596 | ||
1da177e4 LT |
597 | if (!netif_device_present(net) || !netif_running(net)) |
598 | return; | |
599 | ||
c94cb314 | 600 | switch (status) { |
1da177e4 LT |
601 | case -EPIPE: |
602 | /* FIXME schedule_work() to clear the tx halt */ | |
603 | netif_stop_queue(net); | |
a475f603 | 604 | netif_warn(pegasus, tx_err, net, "no tx stall recovery\n"); |
1da177e4 LT |
605 | return; |
606 | case -ENOENT: | |
607 | case -ECONNRESET: | |
608 | case -ESHUTDOWN: | |
a475f603 | 609 | netif_dbg(pegasus, ifdown, net, "tx unlink, %d\n", status); |
1da177e4 LT |
610 | return; |
611 | default: | |
a475f603 | 612 | netif_info(pegasus, tx_err, net, "TX status %d\n", status); |
1da177e4 LT |
613 | /* FALL THROUGH */ |
614 | case 0: | |
615 | break; | |
616 | } | |
617 | ||
860e9538 | 618 | netif_trans_update(net); /* prevent tx timeout */ |
1da177e4 LT |
619 | netif_wake_queue(net); |
620 | } | |
621 | ||
7d12e780 | 622 | static void intr_callback(struct urb *urb) |
1da177e4 LT |
623 | { |
624 | pegasus_t *pegasus = urb->context; | |
625 | struct net_device *net; | |
c94cb314 | 626 | int res, status = urb->status; |
1da177e4 LT |
627 | |
628 | if (!pegasus) | |
629 | return; | |
630 | net = pegasus->net; | |
631 | ||
c94cb314 | 632 | switch (status) { |
1da177e4 LT |
633 | case 0: |
634 | break; | |
635 | case -ECONNRESET: /* unlink */ | |
636 | case -ENOENT: | |
637 | case -ESHUTDOWN: | |
638 | return; | |
639 | default: | |
640 | /* some Pegasus-I products report LOTS of data | |
641 | * toggle errors... avoid log spamming | |
642 | */ | |
a475f603 | 643 | netif_dbg(pegasus, timer, net, "intr status %d\n", status); |
1da177e4 LT |
644 | } |
645 | ||
646 | if (urb->actual_length >= 6) { | |
5a9dbfe0 | 647 | u8 *d = urb->transfer_buffer; |
1da177e4 LT |
648 | |
649 | /* byte 0 == tx_status1, reg 2B */ | |
650 | if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL | |
651 | |LATE_COL|JABBER_TIMEOUT)) { | |
652 | pegasus->stats.tx_errors++; | |
653 | if (d[0] & TX_UNDERRUN) | |
654 | pegasus->stats.tx_fifo_errors++; | |
655 | if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT)) | |
656 | pegasus->stats.tx_aborted_errors++; | |
657 | if (d[0] & LATE_COL) | |
658 | pegasus->stats.tx_window_errors++; | |
659 | } | |
660 | ||
661 | /* d[5].LINK_STATUS lies on some adapters. | |
662 | * d[0].NO_CARRIER kicks in only with failed TX. | |
663 | * ... so monitoring with MII may be safest. | |
664 | */ | |
1da177e4 LT |
665 | |
666 | /* bytes 3-4 == rx_lostpkt, reg 2E/2F */ | |
667 | pegasus->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4]; | |
668 | } | |
669 | ||
c94cb314 ON |
670 | res = usb_submit_urb(urb, GFP_ATOMIC); |
671 | if (res == -ENODEV) | |
955a2608 | 672 | netif_device_detach(pegasus->net); |
a475f603 JP |
673 | if (res) |
674 | netif_err(pegasus, timer, net, | |
675 | "can't resubmit interrupt urb, %d\n", res); | |
1da177e4 LT |
676 | } |
677 | ||
678 | static void pegasus_tx_timeout(struct net_device *net) | |
679 | { | |
680 | pegasus_t *pegasus = netdev_priv(net); | |
a475f603 | 681 | netif_warn(pegasus, timer, net, "tx timeout\n"); |
1da177e4 LT |
682 | usb_unlink_urb(pegasus->tx_urb); |
683 | pegasus->stats.tx_errors++; | |
684 | } | |
685 | ||
25a79c41 SH |
686 | static netdev_tx_t pegasus_start_xmit(struct sk_buff *skb, |
687 | struct net_device *net) | |
1da177e4 LT |
688 | { |
689 | pegasus_t *pegasus = netdev_priv(net); | |
690 | int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3; | |
691 | int res; | |
692 | __u16 l16 = skb->len; | |
693 | ||
694 | netif_stop_queue(net); | |
695 | ||
696 | ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16); | |
d626f62b | 697 | skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len); |
1da177e4 LT |
698 | usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb, |
699 | usb_sndbulkpipe(pegasus->usb, 2), | |
700 | pegasus->tx_buff, count, | |
701 | write_bulk_callback, pegasus); | |
702 | if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) { | |
a475f603 | 703 | netif_warn(pegasus, tx_err, net, "fail tx, %d\n", res); |
1da177e4 LT |
704 | switch (res) { |
705 | case -EPIPE: /* stall, or disconnect from TT */ | |
706 | /* cleanup should already have been scheduled */ | |
707 | break; | |
708 | case -ENODEV: /* disconnect() upcoming */ | |
9dd014eb | 709 | case -EPERM: |
955a2608 | 710 | netif_device_detach(pegasus->net); |
1da177e4 LT |
711 | break; |
712 | default: | |
713 | pegasus->stats.tx_errors++; | |
714 | netif_start_queue(net); | |
715 | } | |
716 | } else { | |
717 | pegasus->stats.tx_packets++; | |
718 | pegasus->stats.tx_bytes += skb->len; | |
1da177e4 LT |
719 | } |
720 | dev_kfree_skb(skb); | |
721 | ||
6ed10654 | 722 | return NETDEV_TX_OK; |
1da177e4 LT |
723 | } |
724 | ||
725 | static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev) | |
726 | { | |
727 | return &((pegasus_t *) netdev_priv(dev))->stats; | |
728 | } | |
729 | ||
5a9dbfe0 | 730 | static inline void disable_net_traffic(pegasus_t *pegasus) |
1da177e4 | 731 | { |
e3453f63 | 732 | __le16 tmp = cpu_to_le16(0); |
1da177e4 | 733 | |
e3453f63 | 734 | set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp); |
1da177e4 LT |
735 | } |
736 | ||
5a9dbfe0 | 737 | static inline void get_interrupt_interval(pegasus_t *pegasus) |
1da177e4 | 738 | { |
e3453f63 MB |
739 | u16 data; |
740 | u8 interval; | |
1da177e4 | 741 | |
e3453f63 MB |
742 | read_eprom_word(pegasus, 4, &data); |
743 | interval = data >> 8; | |
a85a46f2 | 744 | if (pegasus->usb->speed != USB_SPEED_HIGH) { |
e3453f63 | 745 | if (interval < 0x80) { |
a475f603 JP |
746 | netif_info(pegasus, timer, pegasus->net, |
747 | "intr interval changed from %ums to %ums\n", | |
748 | interval, 0x80); | |
e3453f63 MB |
749 | interval = 0x80; |
750 | data = (data & 0x00FF) | ((u16)interval << 8); | |
a85a46f2 | 751 | #ifdef PEGASUS_WRITE_EEPROM |
e3453f63 | 752 | write_eprom_word(pegasus, 4, data); |
1da177e4 | 753 | #endif |
a85a46f2 | 754 | } |
1da177e4 | 755 | } |
e3453f63 | 756 | pegasus->intr_interval = interval; |
1da177e4 LT |
757 | } |
758 | ||
759 | static void set_carrier(struct net_device *net) | |
760 | { | |
761 | pegasus_t *pegasus = netdev_priv(net); | |
762 | u16 tmp; | |
763 | ||
c43c49bd | 764 | if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp)) |
1da177e4 | 765 | return; |
a85a46f2 | 766 | |
1da177e4 LT |
767 | if (tmp & BMSR_LSTATUS) |
768 | netif_carrier_on(net); | |
769 | else | |
770 | netif_carrier_off(net); | |
771 | } | |
772 | ||
5a9dbfe0 | 773 | static void free_all_urbs(pegasus_t *pegasus) |
1da177e4 LT |
774 | { |
775 | usb_free_urb(pegasus->intr_urb); | |
776 | usb_free_urb(pegasus->tx_urb); | |
777 | usb_free_urb(pegasus->rx_urb); | |
1da177e4 LT |
778 | } |
779 | ||
5a9dbfe0 | 780 | static void unlink_all_urbs(pegasus_t *pegasus) |
1da177e4 LT |
781 | { |
782 | usb_kill_urb(pegasus->intr_urb); | |
783 | usb_kill_urb(pegasus->tx_urb); | |
784 | usb_kill_urb(pegasus->rx_urb); | |
1da177e4 LT |
785 | } |
786 | ||
5a9dbfe0 | 787 | static int alloc_urbs(pegasus_t *pegasus) |
1da177e4 | 788 | { |
323b3496 PM |
789 | int res = -ENOMEM; |
790 | ||
1da177e4 LT |
791 | pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
792 | if (!pegasus->rx_urb) { | |
323b3496 | 793 | return res; |
1da177e4 LT |
794 | } |
795 | pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
796 | if (!pegasus->tx_urb) { | |
797 | usb_free_urb(pegasus->rx_urb); | |
323b3496 | 798 | return res; |
1da177e4 LT |
799 | } |
800 | pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL); | |
801 | if (!pegasus->intr_urb) { | |
802 | usb_free_urb(pegasus->tx_urb); | |
803 | usb_free_urb(pegasus->rx_urb); | |
323b3496 | 804 | return res; |
1da177e4 LT |
805 | } |
806 | ||
323b3496 | 807 | return 0; |
1da177e4 LT |
808 | } |
809 | ||
810 | static int pegasus_open(struct net_device *net) | |
811 | { | |
812 | pegasus_t *pegasus = netdev_priv(net); | |
323b3496 | 813 | int res=-ENOMEM; |
1da177e4 LT |
814 | |
815 | if (pegasus->rx_skb == NULL) | |
313a58e4 PM |
816 | pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, |
817 | PEGASUS_MTU, | |
818 | GFP_KERNEL); | |
1da177e4 | 819 | if (!pegasus->rx_skb) |
323b3496 | 820 | goto exit; |
1da177e4 LT |
821 | |
822 | res = set_registers(pegasus, EthID, 6, net->dev_addr); | |
5a9dbfe0 | 823 | |
1da177e4 LT |
824 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, |
825 | usb_rcvbulkpipe(pegasus->usb, 1), | |
b7302ca0 | 826 | pegasus->rx_skb->data, PEGASUS_MTU, |
1da177e4 LT |
827 | read_bulk_callback, pegasus); |
828 | if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) { | |
955a2608 DB |
829 | if (res == -ENODEV) |
830 | netif_device_detach(pegasus->net); | |
a475f603 | 831 | netif_dbg(pegasus, ifup, net, "failed rx_urb, %d\n", res); |
1da177e4 LT |
832 | goto exit; |
833 | } | |
834 | ||
835 | usb_fill_int_urb(pegasus->intr_urb, pegasus->usb, | |
836 | usb_rcvintpipe(pegasus->usb, 3), | |
5a9dbfe0 | 837 | pegasus->intr_buff, sizeof(pegasus->intr_buff), |
1da177e4 LT |
838 | intr_callback, pegasus, pegasus->intr_interval); |
839 | if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) { | |
955a2608 DB |
840 | if (res == -ENODEV) |
841 | netif_device_detach(pegasus->net); | |
a475f603 | 842 | netif_dbg(pegasus, ifup, net, "failed intr_urb, %d\n", res); |
1da177e4 LT |
843 | usb_kill_urb(pegasus->rx_urb); |
844 | goto exit; | |
845 | } | |
323b3496 PM |
846 | res = enable_net_traffic(net, pegasus->usb); |
847 | if (res < 0) { | |
a475f603 JP |
848 | netif_dbg(pegasus, ifup, net, |
849 | "can't enable_net_traffic() - %d\n", res); | |
1da177e4 LT |
850 | res = -EIO; |
851 | usb_kill_urb(pegasus->rx_urb); | |
852 | usb_kill_urb(pegasus->intr_urb); | |
1da177e4 LT |
853 | goto exit; |
854 | } | |
855 | set_carrier(net); | |
856 | netif_start_queue(net); | |
a475f603 | 857 | netif_dbg(pegasus, ifup, net, "open\n"); |
1da177e4 LT |
858 | res = 0; |
859 | exit: | |
860 | return res; | |
861 | } | |
862 | ||
863 | static int pegasus_close(struct net_device *net) | |
864 | { | |
865 | pegasus_t *pegasus = netdev_priv(net); | |
866 | ||
867 | netif_stop_queue(net); | |
868 | if (!(pegasus->flags & PEGASUS_UNPLUG)) | |
869 | disable_net_traffic(pegasus); | |
870 | tasklet_kill(&pegasus->rx_tl); | |
871 | unlink_all_urbs(pegasus); | |
872 | ||
873 | return 0; | |
874 | } | |
875 | ||
876 | static void pegasus_get_drvinfo(struct net_device *dev, | |
877 | struct ethtool_drvinfo *info) | |
878 | { | |
879 | pegasus_t *pegasus = netdev_priv(dev); | |
7826d43f JP |
880 | |
881 | strlcpy(info->driver, driver_name, sizeof(info->driver)); | |
882 | strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); | |
5a9dbfe0 | 883 | usb_make_path(pegasus->usb, info->bus_info, sizeof(info->bus_info)); |
1da177e4 LT |
884 | } |
885 | ||
886 | /* also handles three patterns of some kind in hardware */ | |
887 | #define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY) | |
888 | ||
889 | static void | |
890 | pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
891 | { | |
892 | pegasus_t *pegasus = netdev_priv(dev); | |
893 | ||
894 | wol->supported = WAKE_MAGIC | WAKE_PHY; | |
895 | wol->wolopts = pegasus->wolopts; | |
896 | } | |
897 | ||
898 | static int | |
899 | pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
900 | { | |
901 | pegasus_t *pegasus = netdev_priv(dev); | |
902 | u8 reg78 = 0x04; | |
4fbc5b20 | 903 | int ret; |
5a9dbfe0 | 904 | |
1da177e4 LT |
905 | if (wol->wolopts & ~WOL_SUPPORTED) |
906 | return -EINVAL; | |
907 | ||
908 | if (wol->wolopts & WAKE_MAGIC) | |
909 | reg78 |= 0x80; | |
910 | if (wol->wolopts & WAKE_PHY) | |
911 | reg78 |= 0x40; | |
912 | /* FIXME this 0x10 bit still needs to get set in the chip... */ | |
913 | if (wol->wolopts) | |
914 | pegasus->eth_regs[0] |= 0x10; | |
915 | else | |
916 | pegasus->eth_regs[0] &= ~0x10; | |
917 | pegasus->wolopts = wol->wolopts; | |
4fbc5b20 ML |
918 | |
919 | ret = set_register(pegasus, WakeupControl, reg78); | |
920 | if (!ret) | |
921 | ret = device_set_wakeup_enable(&pegasus->usb->dev, | |
922 | wol->wolopts); | |
923 | return ret; | |
1da177e4 LT |
924 | } |
925 | ||
926 | static inline void pegasus_reset_wol(struct net_device *dev) | |
927 | { | |
928 | struct ethtool_wolinfo wol; | |
5a9dbfe0 | 929 | |
1da177e4 LT |
930 | memset(&wol, 0, sizeof wol); |
931 | (void) pegasus_set_wol(dev, &wol); | |
932 | } | |
933 | ||
934 | static int | |
935 | pegasus_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
936 | { | |
937 | pegasus_t *pegasus; | |
938 | ||
1da177e4 LT |
939 | pegasus = netdev_priv(dev); |
940 | mii_ethtool_gset(&pegasus->mii, ecmd); | |
1da177e4 LT |
941 | return 0; |
942 | } | |
943 | ||
944 | static int | |
945 | pegasus_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
946 | { | |
947 | pegasus_t *pegasus = netdev_priv(dev); | |
948 | return mii_ethtool_sset(&pegasus->mii, ecmd); | |
949 | } | |
950 | ||
951 | static int pegasus_nway_reset(struct net_device *dev) | |
952 | { | |
953 | pegasus_t *pegasus = netdev_priv(dev); | |
954 | return mii_nway_restart(&pegasus->mii); | |
955 | } | |
956 | ||
957 | static u32 pegasus_get_link(struct net_device *dev) | |
958 | { | |
959 | pegasus_t *pegasus = netdev_priv(dev); | |
960 | return mii_link_ok(&pegasus->mii); | |
961 | } | |
962 | ||
963 | static u32 pegasus_get_msglevel(struct net_device *dev) | |
964 | { | |
965 | pegasus_t *pegasus = netdev_priv(dev); | |
966 | return pegasus->msg_enable; | |
967 | } | |
968 | ||
969 | static void pegasus_set_msglevel(struct net_device *dev, u32 v) | |
970 | { | |
971 | pegasus_t *pegasus = netdev_priv(dev); | |
972 | pegasus->msg_enable = v; | |
973 | } | |
974 | ||
0fc0b732 | 975 | static const struct ethtool_ops ops = { |
1da177e4 LT |
976 | .get_drvinfo = pegasus_get_drvinfo, |
977 | .get_settings = pegasus_get_settings, | |
978 | .set_settings = pegasus_set_settings, | |
979 | .nway_reset = pegasus_nway_reset, | |
980 | .get_link = pegasus_get_link, | |
981 | .get_msglevel = pegasus_get_msglevel, | |
982 | .set_msglevel = pegasus_set_msglevel, | |
983 | .get_wol = pegasus_get_wol, | |
984 | .set_wol = pegasus_set_wol, | |
985 | }; | |
986 | ||
987 | static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd) | |
988 | { | |
5a9dbfe0 | 989 | __u16 *data = (__u16 *) &rq->ifr_ifru; |
1da177e4 LT |
990 | pegasus_t *pegasus = netdev_priv(net); |
991 | int res; | |
992 | ||
993 | switch (cmd) { | |
994 | case SIOCDEVPRIVATE: | |
995 | data[0] = pegasus->phy; | |
996 | case SIOCDEVPRIVATE + 1: | |
997 | read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]); | |
998 | res = 0; | |
999 | break; | |
1000 | case SIOCDEVPRIVATE + 2: | |
1001 | if (!capable(CAP_NET_ADMIN)) | |
1002 | return -EPERM; | |
2bd64701 | 1003 | write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, &data[2]); |
1da177e4 LT |
1004 | res = 0; |
1005 | break; | |
1006 | default: | |
1007 | res = -EOPNOTSUPP; | |
1008 | } | |
1009 | return res; | |
1010 | } | |
1011 | ||
1012 | static void pegasus_set_multicast(struct net_device *net) | |
1013 | { | |
1014 | pegasus_t *pegasus = netdev_priv(net); | |
1015 | ||
1016 | if (net->flags & IFF_PROMISC) { | |
1017 | pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS; | |
a475f603 | 1018 | netif_info(pegasus, link, net, "Promiscuous mode enabled\n"); |
4cd24eaf | 1019 | } else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) { |
1da177e4 LT |
1020 | pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST; |
1021 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; | |
a475f603 | 1022 | netif_dbg(pegasus, link, net, "set allmulti\n"); |
1da177e4 LT |
1023 | } else { |
1024 | pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST; | |
1025 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; | |
1026 | } | |
323b3496 | 1027 | update_eth_regs_async(pegasus); |
1da177e4 LT |
1028 | } |
1029 | ||
5a9dbfe0 | 1030 | static __u8 mii_phy_probe(pegasus_t *pegasus) |
1da177e4 LT |
1031 | { |
1032 | int i; | |
1033 | __u16 tmp; | |
1034 | ||
1035 | for (i = 0; i < 32; i++) { | |
1036 | read_mii_word(pegasus, i, MII_BMSR, &tmp); | |
1037 | if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0) | |
1038 | continue; | |
1039 | else | |
1040 | return i; | |
1041 | } | |
1042 | ||
1043 | return 0xff; | |
1044 | } | |
1045 | ||
5a9dbfe0 | 1046 | static inline void setup_pegasus_II(pegasus_t *pegasus) |
1da177e4 LT |
1047 | { |
1048 | __u8 data = 0xa5; | |
5a9dbfe0 | 1049 | |
4a1728a2 PM |
1050 | set_register(pegasus, Reg1d, 0); |
1051 | set_register(pegasus, Reg7b, 1); | |
1da177e4 LT |
1052 | mdelay(100); |
1053 | if ((pegasus->features & HAS_HOME_PNA) && mii_mode) | |
4a1728a2 | 1054 | set_register(pegasus, Reg7b, 0); |
1da177e4 | 1055 | else |
4a1728a2 | 1056 | set_register(pegasus, Reg7b, 2); |
1da177e4 | 1057 | |
4a1728a2 PM |
1058 | set_register(pegasus, 0x83, data); |
1059 | get_registers(pegasus, 0x83, 1, &data); | |
1da177e4 | 1060 | |
5a9dbfe0 | 1061 | if (data == 0xa5) |
1da177e4 | 1062 | pegasus->chip = 0x8513; |
5a9dbfe0 | 1063 | else |
1da177e4 | 1064 | pegasus->chip = 0; |
1da177e4 | 1065 | |
4a1728a2 PM |
1066 | set_register(pegasus, 0x80, 0xc0); |
1067 | set_register(pegasus, 0x83, 0xff); | |
1068 | set_register(pegasus, 0x84, 0x01); | |
5a9dbfe0 | 1069 | |
1da177e4 | 1070 | if (pegasus->features & HAS_HOME_PNA && mii_mode) |
4a1728a2 | 1071 | set_register(pegasus, Reg81, 6); |
1da177e4 | 1072 | else |
4a1728a2 | 1073 | set_register(pegasus, Reg81, 2); |
1da177e4 LT |
1074 | } |
1075 | ||
1076 | ||
cda2836d | 1077 | static int pegasus_count; |
5a9dbfe0 | 1078 | static struct workqueue_struct *pegasus_workqueue; |
1da177e4 LT |
1079 | #define CARRIER_CHECK_DELAY (2 * HZ) |
1080 | ||
c4028958 | 1081 | static void check_carrier(struct work_struct *work) |
1da177e4 | 1082 | { |
c4028958 | 1083 | pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work); |
1da177e4 LT |
1084 | set_carrier(pegasus->net); |
1085 | if (!(pegasus->flags & PEGASUS_UNPLUG)) { | |
1086 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, | |
1087 | CARRIER_CHECK_DELAY); | |
1088 | } | |
1089 | } | |
1090 | ||
4f63135e BC |
1091 | static int pegasus_blacklisted(struct usb_device *udev) |
1092 | { | |
1093 | struct usb_device_descriptor *udd = &udev->descriptor; | |
1094 | ||
1095 | /* Special quirk to keep the driver from handling the Belkin Bluetooth | |
1096 | * dongle which happens to have the same ID. | |
1097 | */ | |
e3453f63 MB |
1098 | if ((udd->idVendor == cpu_to_le16(VENDOR_BELKIN)) && |
1099 | (udd->idProduct == cpu_to_le16(0x0121)) && | |
4f63135e BC |
1100 | (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) && |
1101 | (udd->bDeviceProtocol == 1)) | |
1102 | return 1; | |
1103 | ||
1104 | return 0; | |
1105 | } | |
1106 | ||
cda2836d DB |
1107 | /* we rely on probe() and remove() being serialized so we |
1108 | * don't need extra locking on pegasus_count. | |
1109 | */ | |
1110 | static void pegasus_dec_workqueue(void) | |
1111 | { | |
1112 | pegasus_count--; | |
1113 | if (pegasus_count == 0) { | |
1114 | destroy_workqueue(pegasus_workqueue); | |
1115 | pegasus_workqueue = NULL; | |
1116 | } | |
1117 | } | |
1118 | ||
1da177e4 LT |
1119 | static int pegasus_probe(struct usb_interface *intf, |
1120 | const struct usb_device_id *id) | |
1121 | { | |
1122 | struct usb_device *dev = interface_to_usbdev(intf); | |
1123 | struct net_device *net; | |
1124 | pegasus_t *pegasus; | |
1125 | int dev_index = id - pegasus_ids; | |
1126 | int res = -ENOMEM; | |
1127 | ||
cda2836d DB |
1128 | if (pegasus_blacklisted(dev)) |
1129 | return -ENODEV; | |
4f63135e | 1130 | |
cda2836d DB |
1131 | if (pegasus_count == 0) { |
1132 | pegasus_workqueue = create_singlethread_workqueue("pegasus"); | |
1133 | if (!pegasus_workqueue) | |
1134 | return -ENOMEM; | |
4f63135e | 1135 | } |
cda2836d DB |
1136 | pegasus_count++; |
1137 | ||
1da177e4 | 1138 | net = alloc_etherdev(sizeof(struct pegasus)); |
41de8d4c | 1139 | if (!net) |
1da177e4 | 1140 | goto out; |
1da177e4 LT |
1141 | |
1142 | pegasus = netdev_priv(net); | |
1da177e4 | 1143 | pegasus->dev_index = dev_index; |
1da177e4 | 1144 | |
323b3496 PM |
1145 | res = alloc_urbs(pegasus); |
1146 | if (res < 0) { | |
1da177e4 LT |
1147 | dev_err(&intf->dev, "can't allocate %s\n", "urbs"); |
1148 | goto out1; | |
1149 | } | |
1150 | ||
1151 | tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus); | |
1152 | ||
c4028958 | 1153 | INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier); |
1da177e4 LT |
1154 | |
1155 | pegasus->intf = intf; | |
1156 | pegasus->usb = dev; | |
1157 | pegasus->net = net; | |
8cb89571 ON |
1158 | |
1159 | ||
1da177e4 | 1160 | net->watchdog_timeo = PEGASUS_TX_TIMEOUT; |
8cb89571 | 1161 | net->netdev_ops = &pegasus_netdev_ops; |
7ad24ea4 | 1162 | net->ethtool_ops = &ops; |
1da177e4 LT |
1163 | pegasus->mii.dev = net; |
1164 | pegasus->mii.mdio_read = mdio_read; | |
1165 | pegasus->mii.mdio_write = mdio_write; | |
1166 | pegasus->mii.phy_id_mask = 0x1f; | |
1167 | pegasus->mii.reg_num_mask = 0x1f; | |
5a9dbfe0 | 1168 | pegasus->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV |
1da177e4 LT |
1169 | | NETIF_MSG_PROBE | NETIF_MSG_LINK); |
1170 | ||
1171 | pegasus->features = usb_dev_id[dev_index].private; | |
1172 | get_interrupt_interval(pegasus); | |
1173 | if (reset_mac(pegasus)) { | |
1174 | dev_err(&intf->dev, "can't reset MAC\n"); | |
1175 | res = -EIO; | |
1176 | goto out2; | |
1177 | } | |
1178 | set_ethernet_addr(pegasus); | |
1da177e4 LT |
1179 | if (pegasus->features & PEGASUS_II) { |
1180 | dev_info(&intf->dev, "setup Pegasus II specific registers\n"); | |
1181 | setup_pegasus_II(pegasus); | |
1182 | } | |
1183 | pegasus->phy = mii_phy_probe(pegasus); | |
1184 | if (pegasus->phy == 0xff) { | |
1185 | dev_warn(&intf->dev, "can't locate MII phy, using default\n"); | |
1186 | pegasus->phy = 1; | |
1187 | } | |
1188 | pegasus->mii.phy_id = pegasus->phy; | |
1189 | usb_set_intfdata(intf, pegasus); | |
1190 | SET_NETDEV_DEV(net, &intf->dev); | |
1191 | pegasus_reset_wol(net); | |
1192 | res = register_netdev(net); | |
1193 | if (res) | |
1194 | goto out3; | |
1195 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, | |
323b3496 PM |
1196 | CARRIER_CHECK_DELAY); |
1197 | dev_info(&intf->dev, "%s, %s, %pM\n", net->name, | |
1198 | usb_dev_id[dev_index].name, net->dev_addr); | |
1da177e4 LT |
1199 | return 0; |
1200 | ||
1201 | out3: | |
1202 | usb_set_intfdata(intf, NULL); | |
1da177e4 LT |
1203 | out2: |
1204 | free_all_urbs(pegasus); | |
1205 | out1: | |
1206 | free_netdev(net); | |
1207 | out: | |
cda2836d | 1208 | pegasus_dec_workqueue(); |
1da177e4 LT |
1209 | return res; |
1210 | } | |
1211 | ||
1212 | static void pegasus_disconnect(struct usb_interface *intf) | |
1213 | { | |
1214 | struct pegasus *pegasus = usb_get_intfdata(intf); | |
1215 | ||
1216 | usb_set_intfdata(intf, NULL); | |
1217 | if (!pegasus) { | |
1218 | dev_dbg(&intf->dev, "unregistering non-bound device?\n"); | |
1219 | return; | |
1220 | } | |
1221 | ||
1222 | pegasus->flags |= PEGASUS_UNPLUG; | |
1223 | cancel_delayed_work(&pegasus->carrier_check); | |
1224 | unregister_netdev(pegasus->net); | |
a85a46f2 | 1225 | unlink_all_urbs(pegasus); |
1da177e4 | 1226 | free_all_urbs(pegasus); |
4c13eb66 | 1227 | if (pegasus->rx_skb != NULL) { |
1da177e4 | 1228 | dev_kfree_skb(pegasus->rx_skb); |
4c13eb66 ACM |
1229 | pegasus->rx_skb = NULL; |
1230 | } | |
1da177e4 | 1231 | free_netdev(pegasus->net); |
cda2836d | 1232 | pegasus_dec_workqueue(); |
1da177e4 LT |
1233 | } |
1234 | ||
5a9dbfe0 | 1235 | static int pegasus_suspend(struct usb_interface *intf, pm_message_t message) |
1da177e4 LT |
1236 | { |
1237 | struct pegasus *pegasus = usb_get_intfdata(intf); | |
5a9dbfe0 NK |
1238 | |
1239 | netif_device_detach(pegasus->net); | |
7e713b82 | 1240 | cancel_delayed_work(&pegasus->carrier_check); |
27d72e85 | 1241 | if (netif_running(pegasus->net)) { |
27d72e85 DB |
1242 | usb_kill_urb(pegasus->rx_urb); |
1243 | usb_kill_urb(pegasus->intr_urb); | |
1244 | } | |
1da177e4 LT |
1245 | return 0; |
1246 | } | |
1247 | ||
5a9dbfe0 | 1248 | static int pegasus_resume(struct usb_interface *intf) |
1da177e4 LT |
1249 | { |
1250 | struct pegasus *pegasus = usb_get_intfdata(intf); | |
1251 | ||
5a9dbfe0 | 1252 | netif_device_attach(pegasus->net); |
27d72e85 DB |
1253 | if (netif_running(pegasus->net)) { |
1254 | pegasus->rx_urb->status = 0; | |
1255 | pegasus->rx_urb->actual_length = 0; | |
7d12e780 | 1256 | read_bulk_callback(pegasus->rx_urb); |
27d72e85 DB |
1257 | |
1258 | pegasus->intr_urb->status = 0; | |
1259 | pegasus->intr_urb->actual_length = 0; | |
7d12e780 | 1260 | intr_callback(pegasus->intr_urb); |
27d72e85 | 1261 | } |
7e713b82 DB |
1262 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, |
1263 | CARRIER_CHECK_DELAY); | |
1da177e4 LT |
1264 | return 0; |
1265 | } | |
1266 | ||
8cb89571 ON |
1267 | static const struct net_device_ops pegasus_netdev_ops = { |
1268 | .ndo_open = pegasus_open, | |
1269 | .ndo_stop = pegasus_close, | |
1270 | .ndo_do_ioctl = pegasus_ioctl, | |
1271 | .ndo_start_xmit = pegasus_start_xmit, | |
afc4b13d | 1272 | .ndo_set_rx_mode = pegasus_set_multicast, |
8cb89571 ON |
1273 | .ndo_get_stats = pegasus_netdev_stats, |
1274 | .ndo_tx_timeout = pegasus_tx_timeout, | |
635ecaa7 | 1275 | .ndo_change_mtu = eth_change_mtu, |
240c102d BH |
1276 | .ndo_set_mac_address = eth_mac_addr, |
1277 | .ndo_validate_addr = eth_validate_addr, | |
8cb89571 ON |
1278 | }; |
1279 | ||
1da177e4 LT |
1280 | static struct usb_driver pegasus_driver = { |
1281 | .name = driver_name, | |
1282 | .probe = pegasus_probe, | |
1283 | .disconnect = pegasus_disconnect, | |
1284 | .id_table = pegasus_ids, | |
1285 | .suspend = pegasus_suspend, | |
1286 | .resume = pegasus_resume, | |
e1f12eb6 | 1287 | .disable_hub_initiated_lpm = 1, |
1da177e4 LT |
1288 | }; |
1289 | ||
cda2836d | 1290 | static void __init parse_id(char *id) |
a4f81a61 | 1291 | { |
5a9dbfe0 NK |
1292 | unsigned int vendor_id = 0, device_id = 0, flags = 0, i = 0; |
1293 | char *token, *name = NULL; | |
a4f81a61 Y |
1294 | |
1295 | if ((token = strsep(&id, ":")) != NULL) | |
1296 | name = token; | |
1297 | /* name now points to a null terminated string*/ | |
1298 | if ((token = strsep(&id, ":")) != NULL) | |
1299 | vendor_id = simple_strtoul(token, NULL, 16); | |
1300 | if ((token = strsep(&id, ":")) != NULL) | |
1301 | device_id = simple_strtoul(token, NULL, 16); | |
1302 | flags = simple_strtoul(id, NULL, 16); | |
1303 | pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n", | |
5a9dbfe0 | 1304 | driver_name, name, vendor_id, device_id, flags); |
a4f81a61 Y |
1305 | |
1306 | if (vendor_id > 0x10000 || vendor_id == 0) | |
1307 | return; | |
1308 | if (device_id > 0x10000 || device_id == 0) | |
1309 | return; | |
1310 | ||
5a9dbfe0 | 1311 | for (i = 0; usb_dev_id[i].name; i++); |
a4f81a61 Y |
1312 | usb_dev_id[i].name = name; |
1313 | usb_dev_id[i].vendor = vendor_id; | |
1314 | usb_dev_id[i].device = device_id; | |
1315 | usb_dev_id[i].private = flags; | |
1316 | pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
1317 | pegasus_ids[i].idVendor = vendor_id; | |
1318 | pegasus_ids[i].idProduct = device_id; | |
1319 | } | |
1320 | ||
1da177e4 LT |
1321 | static int __init pegasus_init(void) |
1322 | { | |
1323 | pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION); | |
a4f81a61 Y |
1324 | if (devid) |
1325 | parse_id(devid); | |
1da177e4 LT |
1326 | return usb_register(&pegasus_driver); |
1327 | } | |
1328 | ||
1329 | static void __exit pegasus_exit(void) | |
1330 | { | |
1da177e4 LT |
1331 | usb_deregister(&pegasus_driver); |
1332 | } | |
1333 | ||
1334 | module_init(pegasus_init); | |
1335 | module_exit(pegasus_exit); |