Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2002 Petko Manolov (petkan@users.sourceforge.net) | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * version 2 as published by the Free Software Foundation. | |
7 | */ | |
8 | ||
1da177e4 LT |
9 | #include <linux/init.h> |
10 | #include <linux/signal.h> | |
11 | #include <linux/slab.h> | |
12 | #include <linux/module.h> | |
13 | #include <linux/netdevice.h> | |
14 | #include <linux/etherdevice.h> | |
15 | #include <linux/mii.h> | |
16 | #include <linux/ethtool.h> | |
17 | #include <linux/usb.h> | |
18 | #include <asm/uaccess.h> | |
19 | ||
20 | /* Version Information */ | |
21 | #define DRIVER_VERSION "v0.6.2 (2004/08/27)" | |
22 | #define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>" | |
23 | #define DRIVER_DESC "rtl8150 based usb-ethernet driver" | |
24 | ||
25 | #define IDR 0x0120 | |
26 | #define MAR 0x0126 | |
27 | #define CR 0x012e | |
28 | #define TCR 0x012f | |
29 | #define RCR 0x0130 | |
30 | #define TSR 0x0132 | |
31 | #define RSR 0x0133 | |
32 | #define CON0 0x0135 | |
33 | #define CON1 0x0136 | |
34 | #define MSR 0x0137 | |
35 | #define PHYADD 0x0138 | |
36 | #define PHYDAT 0x0139 | |
37 | #define PHYCNT 0x013b | |
38 | #define GPPC 0x013d | |
39 | #define BMCR 0x0140 | |
40 | #define BMSR 0x0142 | |
41 | #define ANAR 0x0144 | |
42 | #define ANLP 0x0146 | |
43 | #define AER 0x0148 | |
44 | #define CSCR 0x014C /* This one has the link status */ | |
45 | #define CSCR_LINK_STATUS (1 << 3) | |
46 | ||
47 | #define IDR_EEPROM 0x1202 | |
48 | ||
49 | #define PHY_READ 0 | |
50 | #define PHY_WRITE 0x20 | |
51 | #define PHY_GO 0x40 | |
52 | ||
53 | #define MII_TIMEOUT 10 | |
54 | #define INTBUFSIZE 8 | |
55 | ||
56 | #define RTL8150_REQT_READ 0xc0 | |
57 | #define RTL8150_REQT_WRITE 0x40 | |
58 | #define RTL8150_REQ_GET_REGS 0x05 | |
59 | #define RTL8150_REQ_SET_REGS 0x05 | |
60 | ||
61 | ||
62 | /* Transmit status register errors */ | |
63 | #define TSR_ECOL (1<<5) | |
64 | #define TSR_LCOL (1<<4) | |
65 | #define TSR_LOSS_CRS (1<<3) | |
66 | #define TSR_JBR (1<<2) | |
67 | #define TSR_ERRORS (TSR_ECOL | TSR_LCOL | TSR_LOSS_CRS | TSR_JBR) | |
68 | /* Receive status register errors */ | |
69 | #define RSR_CRC (1<<2) | |
70 | #define RSR_FAE (1<<1) | |
71 | #define RSR_ERRORS (RSR_CRC | RSR_FAE) | |
72 | ||
73 | /* Media status register definitions */ | |
74 | #define MSR_DUPLEX (1<<4) | |
75 | #define MSR_SPEED (1<<3) | |
76 | #define MSR_LINK (1<<2) | |
77 | ||
78 | /* Interrupt pipe data */ | |
79 | #define INT_TSR 0x00 | |
80 | #define INT_RSR 0x01 | |
81 | #define INT_MSR 0x02 | |
82 | #define INT_WAKSR 0x03 | |
83 | #define INT_TXOK_CNT 0x04 | |
84 | #define INT_RXLOST_CNT 0x05 | |
85 | #define INT_CRERR_CNT 0x06 | |
86 | #define INT_COL_CNT 0x07 | |
87 | ||
88 | /* Transmit status register errors */ | |
89 | #define TSR_ECOL (1<<5) | |
90 | #define TSR_LCOL (1<<4) | |
91 | #define TSR_LOSS_CRS (1<<3) | |
92 | #define TSR_JBR (1<<2) | |
93 | #define TSR_ERRORS (TSR_ECOL | TSR_LCOL | TSR_LOSS_CRS | TSR_JBR) | |
94 | /* Receive status register errors */ | |
95 | #define RSR_CRC (1<<2) | |
96 | #define RSR_FAE (1<<1) | |
97 | #define RSR_ERRORS (RSR_CRC | RSR_FAE) | |
98 | ||
99 | /* Media status register definitions */ | |
100 | #define MSR_DUPLEX (1<<4) | |
101 | #define MSR_SPEED (1<<3) | |
102 | #define MSR_LINK (1<<2) | |
103 | ||
104 | /* Interrupt pipe data */ | |
105 | #define INT_TSR 0x00 | |
106 | #define INT_RSR 0x01 | |
107 | #define INT_MSR 0x02 | |
108 | #define INT_WAKSR 0x03 | |
109 | #define INT_TXOK_CNT 0x04 | |
110 | #define INT_RXLOST_CNT 0x05 | |
111 | #define INT_CRERR_CNT 0x06 | |
112 | #define INT_COL_CNT 0x07 | |
113 | ||
114 | ||
115 | #define RTL8150_MTU 1540 | |
116 | #define RTL8150_TX_TIMEOUT (HZ) | |
117 | #define RX_SKB_POOL_SIZE 4 | |
118 | ||
119 | /* rtl8150 flags */ | |
120 | #define RTL8150_HW_CRC 0 | |
121 | #define RX_REG_SET 1 | |
122 | #define RTL8150_UNPLUG 2 | |
123 | #define RX_URB_FAIL 3 | |
124 | ||
125 | /* Define these values to match your device */ | |
5859271e | 126 | #define VENDOR_ID_REALTEK 0x0bda |
1da177e4 | 127 | #define VENDOR_ID_MELCO 0x0411 |
5859271e | 128 | #define VENDOR_ID_MICRONET 0x3980 |
1da177e4 | 129 | #define VENDOR_ID_LONGSHINE 0x07b8 |
5859271e | 130 | #define VENDOR_ID_OQO 0x1557 |
b6c2799d | 131 | #define VENDOR_ID_ZYXEL 0x0586 |
1da177e4 LT |
132 | |
133 | #define PRODUCT_ID_RTL8150 0x8150 | |
134 | #define PRODUCT_ID_LUAKTX 0x0012 | |
135 | #define PRODUCT_ID_LCS8138TX 0x401a | |
136 | #define PRODUCT_ID_SP128AR 0x0003 | |
b6c2799d | 137 | #define PRODUCT_ID_PRESTIGE 0x401a |
1da177e4 LT |
138 | |
139 | #undef EEPROM_WRITE | |
140 | ||
141 | /* table of devices that work with this driver */ | |
142 | static struct usb_device_id rtl8150_table[] = { | |
143 | {USB_DEVICE(VENDOR_ID_REALTEK, PRODUCT_ID_RTL8150)}, | |
144 | {USB_DEVICE(VENDOR_ID_MELCO, PRODUCT_ID_LUAKTX)}, | |
145 | {USB_DEVICE(VENDOR_ID_MICRONET, PRODUCT_ID_SP128AR)}, | |
146 | {USB_DEVICE(VENDOR_ID_LONGSHINE, PRODUCT_ID_LCS8138TX)}, | |
5859271e | 147 | {USB_DEVICE(VENDOR_ID_OQO, PRODUCT_ID_RTL8150)}, |
b6c2799d | 148 | {USB_DEVICE(VENDOR_ID_ZYXEL, PRODUCT_ID_PRESTIGE)}, |
1da177e4 LT |
149 | {} |
150 | }; | |
151 | ||
152 | MODULE_DEVICE_TABLE(usb, rtl8150_table); | |
153 | ||
154 | struct rtl8150 { | |
155 | unsigned long flags; | |
156 | struct usb_device *udev; | |
157 | struct tasklet_struct tl; | |
1da177e4 LT |
158 | struct net_device *netdev; |
159 | struct urb *rx_urb, *tx_urb, *intr_urb, *ctrl_urb; | |
160 | struct sk_buff *tx_skb, *rx_skb; | |
161 | struct sk_buff *rx_skb_pool[RX_SKB_POOL_SIZE]; | |
162 | spinlock_t rx_pool_lock; | |
163 | struct usb_ctrlrequest dr; | |
164 | int intr_interval; | |
165 | __le16 rx_creg; | |
166 | u8 *intr_buff; | |
167 | u8 phy; | |
168 | }; | |
169 | ||
170 | typedef struct rtl8150 rtl8150_t; | |
171 | ||
1da177e4 LT |
172 | static const char driver_name [] = "rtl8150"; |
173 | ||
1da177e4 LT |
174 | /* |
175 | ** | |
176 | ** device related part of the code | |
177 | ** | |
178 | */ | |
179 | static int get_registers(rtl8150_t * dev, u16 indx, u16 size, void *data) | |
180 | { | |
181 | return usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), | |
182 | RTL8150_REQ_GET_REGS, RTL8150_REQT_READ, | |
183 | indx, 0, data, size, 500); | |
184 | } | |
185 | ||
186 | static int set_registers(rtl8150_t * dev, u16 indx, u16 size, void *data) | |
187 | { | |
188 | return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), | |
189 | RTL8150_REQ_SET_REGS, RTL8150_REQT_WRITE, | |
190 | indx, 0, data, size, 500); | |
191 | } | |
192 | ||
7d12e780 | 193 | static void ctrl_callback(struct urb *urb) |
1da177e4 LT |
194 | { |
195 | rtl8150_t *dev; | |
c94cb314 | 196 | int status = urb->status; |
1da177e4 | 197 | |
c94cb314 | 198 | switch (status) { |
1da177e4 LT |
199 | case 0: |
200 | break; | |
201 | case -EINPROGRESS: | |
202 | break; | |
203 | case -ENOENT: | |
204 | break; | |
205 | default: | |
342a437e AGR |
206 | if (printk_ratelimit()) |
207 | dev_warn(&urb->dev->dev, "ctrl urb status %d\n", status); | |
1da177e4 LT |
208 | } |
209 | dev = urb->context; | |
210 | clear_bit(RX_REG_SET, &dev->flags); | |
211 | } | |
212 | ||
213 | static int async_set_registers(rtl8150_t * dev, u16 indx, u16 size) | |
214 | { | |
215 | int ret; | |
216 | ||
217 | if (test_bit(RX_REG_SET, &dev->flags)) | |
218 | return -EAGAIN; | |
219 | ||
220 | dev->dr.bRequestType = RTL8150_REQT_WRITE; | |
221 | dev->dr.bRequest = RTL8150_REQ_SET_REGS; | |
222 | dev->dr.wValue = cpu_to_le16(indx); | |
223 | dev->dr.wIndex = 0; | |
224 | dev->dr.wLength = cpu_to_le16(size); | |
225 | dev->ctrl_urb->transfer_buffer_length = size; | |
226 | usb_fill_control_urb(dev->ctrl_urb, dev->udev, | |
227 | usb_sndctrlpipe(dev->udev, 0), (char *) &dev->dr, | |
228 | &dev->rx_creg, size, ctrl_callback, dev); | |
23219c13 PC |
229 | if ((ret = usb_submit_urb(dev->ctrl_urb, GFP_ATOMIC))) { |
230 | if (ret == -ENODEV) | |
231 | netif_device_detach(dev->netdev); | |
1da177e4 | 232 | err("control request submission failed: %d", ret); |
23219c13 | 233 | } else |
1da177e4 LT |
234 | set_bit(RX_REG_SET, &dev->flags); |
235 | ||
236 | return ret; | |
237 | } | |
238 | ||
239 | static int read_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 * reg) | |
240 | { | |
241 | int i; | |
242 | u8 data[3], tmp; | |
243 | ||
244 | data[0] = phy; | |
245 | data[1] = data[2] = 0; | |
246 | tmp = indx | PHY_READ | PHY_GO; | |
247 | i = 0; | |
248 | ||
249 | set_registers(dev, PHYADD, sizeof(data), data); | |
250 | set_registers(dev, PHYCNT, 1, &tmp); | |
251 | do { | |
252 | get_registers(dev, PHYCNT, 1, data); | |
253 | } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT)); | |
254 | ||
c064efca | 255 | if (i <= MII_TIMEOUT) { |
1da177e4 LT |
256 | get_registers(dev, PHYDAT, 2, data); |
257 | *reg = data[0] | (data[1] << 8); | |
258 | return 0; | |
259 | } else | |
260 | return 1; | |
261 | } | |
262 | ||
263 | static int write_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 reg) | |
264 | { | |
265 | int i; | |
266 | u8 data[3], tmp; | |
267 | ||
268 | data[0] = phy; | |
886ae1fa AV |
269 | data[1] = reg & 0xff; |
270 | data[2] = (reg >> 8) & 0xff; | |
1da177e4 LT |
271 | tmp = indx | PHY_WRITE | PHY_GO; |
272 | i = 0; | |
273 | ||
274 | set_registers(dev, PHYADD, sizeof(data), data); | |
275 | set_registers(dev, PHYCNT, 1, &tmp); | |
276 | do { | |
277 | get_registers(dev, PHYCNT, 1, data); | |
278 | } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT)); | |
279 | ||
c064efca | 280 | if (i <= MII_TIMEOUT) |
1da177e4 LT |
281 | return 0; |
282 | else | |
283 | return 1; | |
284 | } | |
285 | ||
286 | static inline void set_ethernet_addr(rtl8150_t * dev) | |
287 | { | |
288 | u8 node_id[6]; | |
289 | ||
290 | get_registers(dev, IDR, sizeof(node_id), node_id); | |
291 | memcpy(dev->netdev->dev_addr, node_id, sizeof(node_id)); | |
292 | } | |
293 | ||
294 | static int rtl8150_set_mac_address(struct net_device *netdev, void *p) | |
295 | { | |
296 | struct sockaddr *addr = p; | |
297 | rtl8150_t *dev = netdev_priv(netdev); | |
1da177e4 LT |
298 | |
299 | if (netif_running(netdev)) | |
300 | return -EBUSY; | |
301 | ||
302 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
d649a284 | 303 | dbg("%s: Setting MAC address to %pM\n", netdev->name, netdev->dev_addr); |
1da177e4 | 304 | /* Set the IDR registers. */ |
6057912d | 305 | set_registers(dev, IDR, netdev->addr_len, netdev->dev_addr); |
1da177e4 LT |
306 | #ifdef EEPROM_WRITE |
307 | { | |
d649a284 | 308 | int i; |
1da177e4 LT |
309 | u8 cr; |
310 | /* Get the CR contents. */ | |
311 | get_registers(dev, CR, 1, &cr); | |
312 | /* Set the WEPROM bit (eeprom write enable). */ | |
313 | cr |= 0x20; | |
314 | set_registers(dev, CR, 1, &cr); | |
315 | /* Write the MAC address into eeprom. Eeprom writes must be word-sized, | |
316 | so we need to split them up. */ | |
317 | for (i = 0; i * 2 < netdev->addr_len; i++) { | |
141b9e66 | 318 | set_registers(dev, IDR_EEPROM + (i * 2), 2, |
1da177e4 LT |
319 | netdev->dev_addr + (i * 2)); |
320 | } | |
321 | /* Clear the WEPROM bit (preventing accidental eeprom writes). */ | |
322 | cr &= 0xdf; | |
323 | set_registers(dev, CR, 1, &cr); | |
324 | } | |
325 | #endif | |
326 | return 0; | |
327 | } | |
328 | ||
329 | static int rtl8150_reset(rtl8150_t * dev) | |
330 | { | |
331 | u8 data = 0x10; | |
332 | int i = HZ; | |
333 | ||
334 | set_registers(dev, CR, 1, &data); | |
335 | do { | |
336 | get_registers(dev, CR, 1, &data); | |
337 | } while ((data & 0x10) && --i); | |
338 | ||
339 | return (i > 0) ? 1 : 0; | |
340 | } | |
341 | ||
342 | static int alloc_all_urbs(rtl8150_t * dev) | |
343 | { | |
344 | dev->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
345 | if (!dev->rx_urb) | |
346 | return 0; | |
347 | dev->tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
348 | if (!dev->tx_urb) { | |
349 | usb_free_urb(dev->rx_urb); | |
350 | return 0; | |
351 | } | |
352 | dev->intr_urb = usb_alloc_urb(0, GFP_KERNEL); | |
353 | if (!dev->intr_urb) { | |
354 | usb_free_urb(dev->rx_urb); | |
355 | usb_free_urb(dev->tx_urb); | |
356 | return 0; | |
357 | } | |
358 | dev->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); | |
7fdba2f2 | 359 | if (!dev->ctrl_urb) { |
1da177e4 LT |
360 | usb_free_urb(dev->rx_urb); |
361 | usb_free_urb(dev->tx_urb); | |
362 | usb_free_urb(dev->intr_urb); | |
363 | return 0; | |
364 | } | |
365 | ||
366 | return 1; | |
367 | } | |
368 | ||
369 | static void free_all_urbs(rtl8150_t * dev) | |
370 | { | |
371 | usb_free_urb(dev->rx_urb); | |
372 | usb_free_urb(dev->tx_urb); | |
373 | usb_free_urb(dev->intr_urb); | |
374 | usb_free_urb(dev->ctrl_urb); | |
375 | } | |
376 | ||
377 | static void unlink_all_urbs(rtl8150_t * dev) | |
378 | { | |
379 | usb_kill_urb(dev->rx_urb); | |
380 | usb_kill_urb(dev->tx_urb); | |
381 | usb_kill_urb(dev->intr_urb); | |
382 | usb_kill_urb(dev->ctrl_urb); | |
383 | } | |
384 | ||
385 | static inline struct sk_buff *pull_skb(rtl8150_t *dev) | |
386 | { | |
387 | struct sk_buff *skb; | |
388 | int i; | |
389 | ||
390 | for (i = 0; i < RX_SKB_POOL_SIZE; i++) { | |
391 | if (dev->rx_skb_pool[i]) { | |
392 | skb = dev->rx_skb_pool[i]; | |
393 | dev->rx_skb_pool[i] = NULL; | |
394 | return skb; | |
395 | } | |
396 | } | |
397 | return NULL; | |
398 | } | |
399 | ||
7d12e780 | 400 | static void read_bulk_callback(struct urb *urb) |
1da177e4 LT |
401 | { |
402 | rtl8150_t *dev; | |
403 | unsigned pkt_len, res; | |
404 | struct sk_buff *skb; | |
405 | struct net_device *netdev; | |
406 | u16 rx_stat; | |
c94cb314 ON |
407 | int status = urb->status; |
408 | int result; | |
1da177e4 LT |
409 | |
410 | dev = urb->context; | |
411 | if (!dev) | |
412 | return; | |
413 | if (test_bit(RTL8150_UNPLUG, &dev->flags)) | |
414 | return; | |
415 | netdev = dev->netdev; | |
416 | if (!netif_device_present(netdev)) | |
417 | return; | |
418 | ||
c94cb314 | 419 | switch (status) { |
1da177e4 LT |
420 | case 0: |
421 | break; | |
422 | case -ENOENT: | |
423 | return; /* the urb is in unlink state */ | |
38e2bfc9 | 424 | case -ETIME: |
342a437e AGR |
425 | if (printk_ratelimit()) |
426 | dev_warn(&urb->dev->dev, "may be reset is needed?..\n"); | |
1da177e4 LT |
427 | goto goon; |
428 | default: | |
342a437e AGR |
429 | if (printk_ratelimit()) |
430 | dev_warn(&urb->dev->dev, "Rx status %d\n", status); | |
1da177e4 LT |
431 | goto goon; |
432 | } | |
433 | ||
434 | if (!dev->rx_skb) | |
435 | goto resched; | |
436 | /* protect against short packets (tell me why we got some?!?) */ | |
437 | if (urb->actual_length < 4) | |
438 | goto goon; | |
439 | ||
440 | res = urb->actual_length; | |
441 | rx_stat = le16_to_cpu(*(__le16 *)(urb->transfer_buffer + res - 4)); | |
442 | pkt_len = res - 4; | |
443 | ||
444 | skb_put(dev->rx_skb, pkt_len); | |
445 | dev->rx_skb->protocol = eth_type_trans(dev->rx_skb, netdev); | |
446 | netif_rx(dev->rx_skb); | |
b7e41e23 SH |
447 | netdev->stats.rx_packets++; |
448 | netdev->stats.rx_bytes += pkt_len; | |
1da177e4 LT |
449 | |
450 | spin_lock(&dev->rx_pool_lock); | |
451 | skb = pull_skb(dev); | |
452 | spin_unlock(&dev->rx_pool_lock); | |
453 | if (!skb) | |
454 | goto resched; | |
455 | ||
456 | dev->rx_skb = skb; | |
457 | goon: | |
458 | usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1), | |
459 | dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev); | |
c94cb314 ON |
460 | result = usb_submit_urb(dev->rx_urb, GFP_ATOMIC); |
461 | if (result == -ENODEV) | |
23219c13 | 462 | netif_device_detach(dev->netdev); |
c94cb314 | 463 | else if (result) { |
1da177e4 LT |
464 | set_bit(RX_URB_FAIL, &dev->flags); |
465 | goto resched; | |
466 | } else { | |
467 | clear_bit(RX_URB_FAIL, &dev->flags); | |
468 | } | |
469 | ||
470 | return; | |
471 | resched: | |
472 | tasklet_schedule(&dev->tl); | |
473 | } | |
474 | ||
7d12e780 | 475 | static void write_bulk_callback(struct urb *urb) |
1da177e4 LT |
476 | { |
477 | rtl8150_t *dev; | |
c94cb314 | 478 | int status = urb->status; |
1da177e4 LT |
479 | |
480 | dev = urb->context; | |
481 | if (!dev) | |
482 | return; | |
483 | dev_kfree_skb_irq(dev->tx_skb); | |
484 | if (!netif_device_present(dev->netdev)) | |
485 | return; | |
c94cb314 | 486 | if (status) |
880c9c66 | 487 | dev_info(&urb->dev->dev, "%s: Tx status %d\n", |
c94cb314 | 488 | dev->netdev->name, status); |
1da177e4 LT |
489 | dev->netdev->trans_start = jiffies; |
490 | netif_wake_queue(dev->netdev); | |
491 | } | |
492 | ||
7d12e780 | 493 | static void intr_callback(struct urb *urb) |
1da177e4 LT |
494 | { |
495 | rtl8150_t *dev; | |
496 | __u8 *d; | |
c94cb314 ON |
497 | int status = urb->status; |
498 | int res; | |
1da177e4 LT |
499 | |
500 | dev = urb->context; | |
501 | if (!dev) | |
502 | return; | |
c94cb314 | 503 | switch (status) { |
1da177e4 LT |
504 | case 0: /* success */ |
505 | break; | |
506 | case -ECONNRESET: /* unlink */ | |
507 | case -ENOENT: | |
508 | case -ESHUTDOWN: | |
509 | return; | |
510 | /* -EPIPE: should clear the halt */ | |
511 | default: | |
880c9c66 | 512 | dev_info(&urb->dev->dev, "%s: intr status %d\n", |
c94cb314 | 513 | dev->netdev->name, status); |
1da177e4 LT |
514 | goto resubmit; |
515 | } | |
516 | ||
517 | d = urb->transfer_buffer; | |
518 | if (d[0] & TSR_ERRORS) { | |
b7e41e23 | 519 | dev->netdev->stats.tx_errors++; |
1da177e4 | 520 | if (d[INT_TSR] & (TSR_ECOL | TSR_JBR)) |
b7e41e23 | 521 | dev->netdev->stats.tx_aborted_errors++; |
1da177e4 | 522 | if (d[INT_TSR] & TSR_LCOL) |
b7e41e23 | 523 | dev->netdev->stats.tx_window_errors++; |
1da177e4 | 524 | if (d[INT_TSR] & TSR_LOSS_CRS) |
b7e41e23 | 525 | dev->netdev->stats.tx_carrier_errors++; |
1da177e4 LT |
526 | } |
527 | /* Report link status changes to the network stack */ | |
528 | if ((d[INT_MSR] & MSR_LINK) == 0) { | |
529 | if (netif_carrier_ok(dev->netdev)) { | |
530 | netif_carrier_off(dev->netdev); | |
531 | dbg("%s: LINK LOST\n", __func__); | |
532 | } | |
533 | } else { | |
534 | if (!netif_carrier_ok(dev->netdev)) { | |
535 | netif_carrier_on(dev->netdev); | |
536 | dbg("%s: LINK CAME BACK\n", __func__); | |
537 | } | |
538 | } | |
539 | ||
540 | resubmit: | |
c94cb314 ON |
541 | res = usb_submit_urb (urb, GFP_ATOMIC); |
542 | if (res == -ENODEV) | |
23219c13 | 543 | netif_device_detach(dev->netdev); |
c94cb314 | 544 | else if (res) |
1da177e4 LT |
545 | err ("can't resubmit intr, %s-%s/input0, status %d", |
546 | dev->udev->bus->bus_name, | |
c94cb314 | 547 | dev->udev->devpath, res); |
1da177e4 LT |
548 | } |
549 | ||
23219c13 PC |
550 | static int rtl8150_suspend(struct usb_interface *intf, pm_message_t message) |
551 | { | |
552 | rtl8150_t *dev = usb_get_intfdata(intf); | |
553 | ||
554 | netif_device_detach(dev->netdev); | |
555 | ||
556 | if (netif_running(dev->netdev)) { | |
557 | usb_kill_urb(dev->rx_urb); | |
558 | usb_kill_urb(dev->intr_urb); | |
559 | } | |
560 | return 0; | |
561 | } | |
562 | ||
563 | static int rtl8150_resume(struct usb_interface *intf) | |
564 | { | |
565 | rtl8150_t *dev = usb_get_intfdata(intf); | |
566 | ||
567 | netif_device_attach(dev->netdev); | |
568 | if (netif_running(dev->netdev)) { | |
569 | dev->rx_urb->status = 0; | |
570 | dev->rx_urb->actual_length = 0; | |
7d12e780 | 571 | read_bulk_callback(dev->rx_urb); |
23219c13 PC |
572 | |
573 | dev->intr_urb->status = 0; | |
574 | dev->intr_urb->actual_length = 0; | |
7d12e780 | 575 | intr_callback(dev->intr_urb); |
23219c13 PC |
576 | } |
577 | return 0; | |
578 | } | |
1da177e4 LT |
579 | |
580 | /* | |
581 | ** | |
582 | ** network related part of the code | |
583 | ** | |
584 | */ | |
585 | ||
586 | static void fill_skb_pool(rtl8150_t *dev) | |
587 | { | |
588 | struct sk_buff *skb; | |
589 | int i; | |
590 | ||
591 | for (i = 0; i < RX_SKB_POOL_SIZE; i++) { | |
592 | if (dev->rx_skb_pool[i]) | |
593 | continue; | |
594 | skb = dev_alloc_skb(RTL8150_MTU + 2); | |
595 | if (!skb) { | |
596 | return; | |
597 | } | |
1da177e4 LT |
598 | skb_reserve(skb, 2); |
599 | dev->rx_skb_pool[i] = skb; | |
600 | } | |
601 | } | |
602 | ||
603 | static void free_skb_pool(rtl8150_t *dev) | |
604 | { | |
605 | int i; | |
606 | ||
607 | for (i = 0; i < RX_SKB_POOL_SIZE; i++) | |
608 | if (dev->rx_skb_pool[i]) | |
609 | dev_kfree_skb(dev->rx_skb_pool[i]); | |
610 | } | |
611 | ||
141b9e66 | 612 | static void rx_fixup(unsigned long data) |
613 | { | |
614 | struct rtl8150 *dev = (struct rtl8150 *)data; | |
615 | struct sk_buff *skb; | |
616 | int status; | |
617 | ||
618 | spin_lock_irq(&dev->rx_pool_lock); | |
619 | fill_skb_pool(dev); | |
620 | spin_unlock_irq(&dev->rx_pool_lock); | |
621 | if (test_bit(RX_URB_FAIL, &dev->flags)) | |
622 | if (dev->rx_skb) | |
623 | goto try_again; | |
624 | spin_lock_irq(&dev->rx_pool_lock); | |
625 | skb = pull_skb(dev); | |
626 | spin_unlock_irq(&dev->rx_pool_lock); | |
627 | if (skb == NULL) | |
628 | goto tlsched; | |
629 | dev->rx_skb = skb; | |
630 | usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1), | |
631 | dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev); | |
632 | try_again: | |
633 | status = usb_submit_urb(dev->rx_urb, GFP_ATOMIC); | |
634 | if (status == -ENODEV) { | |
635 | netif_device_detach(dev->netdev); | |
636 | } else if (status) { | |
637 | set_bit(RX_URB_FAIL, &dev->flags); | |
638 | goto tlsched; | |
639 | } else { | |
640 | clear_bit(RX_URB_FAIL, &dev->flags); | |
641 | } | |
642 | ||
643 | return; | |
644 | tlsched: | |
645 | tasklet_schedule(&dev->tl); | |
646 | } | |
647 | ||
1da177e4 LT |
648 | static int enable_net_traffic(rtl8150_t * dev) |
649 | { | |
650 | u8 cr, tcr, rcr, msr; | |
651 | ||
652 | if (!rtl8150_reset(dev)) { | |
4dc89948 | 653 | dev_warn(&dev->udev->dev, "device reset failed\n"); |
1da177e4 LT |
654 | } |
655 | /* RCR bit7=1 attach Rx info at the end; =0 HW CRC (which is broken) */ | |
656 | rcr = 0x9e; | |
657 | dev->rx_creg = cpu_to_le16(rcr); | |
658 | tcr = 0xd8; | |
659 | cr = 0x0c; | |
660 | if (!(rcr & 0x80)) | |
661 | set_bit(RTL8150_HW_CRC, &dev->flags); | |
662 | set_registers(dev, RCR, 1, &rcr); | |
663 | set_registers(dev, TCR, 1, &tcr); | |
664 | set_registers(dev, CR, 1, &cr); | |
665 | get_registers(dev, MSR, 1, &msr); | |
666 | ||
667 | return 0; | |
668 | } | |
669 | ||
670 | static void disable_net_traffic(rtl8150_t * dev) | |
671 | { | |
672 | u8 cr; | |
673 | ||
674 | get_registers(dev, CR, 1, &cr); | |
675 | cr &= 0xf3; | |
676 | set_registers(dev, CR, 1, &cr); | |
677 | } | |
678 | ||
1da177e4 LT |
679 | static void rtl8150_tx_timeout(struct net_device *netdev) |
680 | { | |
681 | rtl8150_t *dev = netdev_priv(netdev); | |
4dc89948 | 682 | dev_warn(&netdev->dev, "Tx timeout.\n"); |
1da177e4 | 683 | usb_unlink_urb(dev->tx_urb); |
b7e41e23 | 684 | netdev->stats.tx_errors++; |
1da177e4 LT |
685 | } |
686 | ||
687 | static void rtl8150_set_multicast(struct net_device *netdev) | |
688 | { | |
689 | rtl8150_t *dev = netdev_priv(netdev); | |
690 | netif_stop_queue(netdev); | |
691 | if (netdev->flags & IFF_PROMISC) { | |
692 | dev->rx_creg |= cpu_to_le16(0x0001); | |
880c9c66 | 693 | dev_info(&netdev->dev, "%s: promiscuous mode\n", netdev->name); |
4cd24eaf | 694 | } else if (!netdev_mc_empty(netdev) || |
1da177e4 LT |
695 | (netdev->flags & IFF_ALLMULTI)) { |
696 | dev->rx_creg &= cpu_to_le16(0xfffe); | |
697 | dev->rx_creg |= cpu_to_le16(0x0002); | |
880c9c66 | 698 | dev_info(&netdev->dev, "%s: allmulti set\n", netdev->name); |
1da177e4 LT |
699 | } else { |
700 | /* ~RX_MULTICAST, ~RX_PROMISCUOUS */ | |
701 | dev->rx_creg &= cpu_to_le16(0x00fc); | |
702 | } | |
703 | async_set_registers(dev, RCR, 2); | |
704 | netif_wake_queue(netdev); | |
705 | } | |
706 | ||
25a79c41 SH |
707 | static netdev_tx_t rtl8150_start_xmit(struct sk_buff *skb, |
708 | struct net_device *netdev) | |
1da177e4 LT |
709 | { |
710 | rtl8150_t *dev = netdev_priv(netdev); | |
711 | int count, res; | |
712 | ||
713 | netif_stop_queue(netdev); | |
714 | count = (skb->len < 60) ? 60 : skb->len; | |
715 | count = (count & 0x3f) ? count : count + 1; | |
716 | dev->tx_skb = skb; | |
717 | usb_fill_bulk_urb(dev->tx_urb, dev->udev, usb_sndbulkpipe(dev->udev, 2), | |
718 | skb->data, count, write_bulk_callback, dev); | |
719 | if ((res = usb_submit_urb(dev->tx_urb, GFP_ATOMIC))) { | |
23219c13 PC |
720 | /* Can we get/handle EPIPE here? */ |
721 | if (res == -ENODEV) | |
722 | netif_device_detach(dev->netdev); | |
723 | else { | |
4dc89948 | 724 | dev_warn(&netdev->dev, "failed tx_urb %d\n", res); |
b7e41e23 | 725 | netdev->stats.tx_errors++; |
23219c13 PC |
726 | netif_start_queue(netdev); |
727 | } | |
1da177e4 | 728 | } else { |
b7e41e23 SH |
729 | netdev->stats.tx_packets++; |
730 | netdev->stats.tx_bytes += skb->len; | |
1da177e4 LT |
731 | netdev->trans_start = jiffies; |
732 | } | |
733 | ||
6ed10654 | 734 | return NETDEV_TX_OK; |
1da177e4 LT |
735 | } |
736 | ||
737 | ||
738 | static void set_carrier(struct net_device *netdev) | |
739 | { | |
740 | rtl8150_t *dev = netdev_priv(netdev); | |
741 | short tmp; | |
742 | ||
743 | get_registers(dev, CSCR, 2, &tmp); | |
744 | if (tmp & CSCR_LINK_STATUS) | |
745 | netif_carrier_on(netdev); | |
746 | else | |
747 | netif_carrier_off(netdev); | |
748 | } | |
749 | ||
750 | static int rtl8150_open(struct net_device *netdev) | |
751 | { | |
752 | rtl8150_t *dev = netdev_priv(netdev); | |
753 | int res; | |
754 | ||
755 | if (dev->rx_skb == NULL) | |
756 | dev->rx_skb = pull_skb(dev); | |
757 | if (!dev->rx_skb) | |
758 | return -ENOMEM; | |
759 | ||
760 | set_registers(dev, IDR, 6, netdev->dev_addr); | |
141b9e66 | 761 | |
1da177e4 LT |
762 | usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1), |
763 | dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev); | |
23219c13 PC |
764 | if ((res = usb_submit_urb(dev->rx_urb, GFP_KERNEL))) { |
765 | if (res == -ENODEV) | |
766 | netif_device_detach(dev->netdev); | |
4dc89948 | 767 | dev_warn(&netdev->dev, "rx_urb submit failed: %d\n", res); |
23219c13 PC |
768 | return res; |
769 | } | |
1da177e4 LT |
770 | usb_fill_int_urb(dev->intr_urb, dev->udev, usb_rcvintpipe(dev->udev, 3), |
771 | dev->intr_buff, INTBUFSIZE, intr_callback, | |
772 | dev, dev->intr_interval); | |
23219c13 PC |
773 | if ((res = usb_submit_urb(dev->intr_urb, GFP_KERNEL))) { |
774 | if (res == -ENODEV) | |
775 | netif_device_detach(dev->netdev); | |
4dc89948 | 776 | dev_warn(&netdev->dev, "intr_urb submit failed: %d\n", res); |
23219c13 PC |
777 | usb_kill_urb(dev->rx_urb); |
778 | return res; | |
779 | } | |
1da177e4 LT |
780 | enable_net_traffic(dev); |
781 | set_carrier(netdev); | |
23219c13 | 782 | netif_start_queue(netdev); |
1da177e4 LT |
783 | |
784 | return res; | |
785 | } | |
786 | ||
787 | static int rtl8150_close(struct net_device *netdev) | |
788 | { | |
789 | rtl8150_t *dev = netdev_priv(netdev); | |
790 | int res = 0; | |
791 | ||
792 | netif_stop_queue(netdev); | |
793 | if (!test_bit(RTL8150_UNPLUG, &dev->flags)) | |
794 | disable_net_traffic(dev); | |
795 | unlink_all_urbs(dev); | |
796 | ||
797 | return res; | |
798 | } | |
799 | ||
800 | static void rtl8150_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *info) | |
801 | { | |
802 | rtl8150_t *dev = netdev_priv(netdev); | |
803 | ||
804 | strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN); | |
805 | strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN); | |
806 | usb_make_path(dev->udev, info->bus_info, sizeof info->bus_info); | |
807 | } | |
808 | ||
809 | static int rtl8150_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) | |
810 | { | |
811 | rtl8150_t *dev = netdev_priv(netdev); | |
812 | short lpa, bmcr; | |
813 | ||
814 | ecmd->supported = (SUPPORTED_10baseT_Half | | |
815 | SUPPORTED_10baseT_Full | | |
816 | SUPPORTED_100baseT_Half | | |
817 | SUPPORTED_100baseT_Full | | |
818 | SUPPORTED_Autoneg | | |
819 | SUPPORTED_TP | SUPPORTED_MII); | |
820 | ecmd->port = PORT_TP; | |
821 | ecmd->transceiver = XCVR_INTERNAL; | |
822 | ecmd->phy_address = dev->phy; | |
823 | get_registers(dev, BMCR, 2, &bmcr); | |
824 | get_registers(dev, ANLP, 2, &lpa); | |
825 | if (bmcr & BMCR_ANENABLE) { | |
70739497 DD |
826 | u32 speed = ((lpa & (LPA_100HALF | LPA_100FULL)) ? |
827 | SPEED_100 : SPEED_10); | |
828 | ethtool_cmd_speed_set(ecmd, speed); | |
1da177e4 | 829 | ecmd->autoneg = AUTONEG_ENABLE; |
70739497 | 830 | if (speed == SPEED_100) |
1da177e4 LT |
831 | ecmd->duplex = (lpa & LPA_100FULL) ? |
832 | DUPLEX_FULL : DUPLEX_HALF; | |
833 | else | |
834 | ecmd->duplex = (lpa & LPA_10FULL) ? | |
835 | DUPLEX_FULL : DUPLEX_HALF; | |
836 | } else { | |
837 | ecmd->autoneg = AUTONEG_DISABLE; | |
70739497 DD |
838 | ethtool_cmd_speed_set(ecmd, ((bmcr & BMCR_SPEED100) ? |
839 | SPEED_100 : SPEED_10)); | |
1da177e4 LT |
840 | ecmd->duplex = (bmcr & BMCR_FULLDPLX) ? |
841 | DUPLEX_FULL : DUPLEX_HALF; | |
842 | } | |
843 | return 0; | |
844 | } | |
845 | ||
0fc0b732 | 846 | static const struct ethtool_ops ops = { |
1da177e4 LT |
847 | .get_drvinfo = rtl8150_get_drvinfo, |
848 | .get_settings = rtl8150_get_settings, | |
849 | .get_link = ethtool_op_get_link | |
850 | }; | |
851 | ||
852 | static int rtl8150_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) | |
853 | { | |
854 | rtl8150_t *dev = netdev_priv(netdev); | |
855 | u16 *data = (u16 *) & rq->ifr_ifru; | |
856 | int res = 0; | |
857 | ||
858 | switch (cmd) { | |
859 | case SIOCDEVPRIVATE: | |
860 | data[0] = dev->phy; | |
861 | case SIOCDEVPRIVATE + 1: | |
862 | read_mii_word(dev, dev->phy, (data[1] & 0x1f), &data[3]); | |
863 | break; | |
864 | case SIOCDEVPRIVATE + 2: | |
865 | if (!capable(CAP_NET_ADMIN)) | |
866 | return -EPERM; | |
867 | write_mii_word(dev, dev->phy, (data[1] & 0x1f), data[2]); | |
868 | break; | |
869 | default: | |
870 | res = -EOPNOTSUPP; | |
871 | } | |
872 | ||
873 | return res; | |
874 | } | |
875 | ||
d79f7ef4 SH |
876 | static const struct net_device_ops rtl8150_netdev_ops = { |
877 | .ndo_open = rtl8150_open, | |
878 | .ndo_stop = rtl8150_close, | |
879 | .ndo_do_ioctl = rtl8150_ioctl, | |
880 | .ndo_start_xmit = rtl8150_start_xmit, | |
141b9e66 | 881 | .ndo_tx_timeout = rtl8150_tx_timeout, |
afc4b13d | 882 | .ndo_set_rx_mode = rtl8150_set_multicast, |
d79f7ef4 SH |
883 | .ndo_set_mac_address = rtl8150_set_mac_address, |
884 | ||
885 | .ndo_change_mtu = eth_change_mtu, | |
886 | .ndo_validate_addr = eth_validate_addr, | |
887 | }; | |
888 | ||
1da177e4 LT |
889 | static int rtl8150_probe(struct usb_interface *intf, |
890 | const struct usb_device_id *id) | |
891 | { | |
892 | struct usb_device *udev = interface_to_usbdev(intf); | |
893 | rtl8150_t *dev; | |
894 | struct net_device *netdev; | |
895 | ||
896 | netdev = alloc_etherdev(sizeof(rtl8150_t)); | |
897 | if (!netdev) { | |
898 | err("Out of memory"); | |
899 | return -ENOMEM; | |
900 | } | |
901 | ||
902 | dev = netdev_priv(netdev); | |
1da177e4 LT |
903 | |
904 | dev->intr_buff = kmalloc(INTBUFSIZE, GFP_KERNEL); | |
905 | if (!dev->intr_buff) { | |
906 | free_netdev(netdev); | |
907 | return -ENOMEM; | |
908 | } | |
909 | ||
910 | tasklet_init(&dev->tl, rx_fixup, (unsigned long)dev); | |
911 | spin_lock_init(&dev->rx_pool_lock); | |
141b9e66 | 912 | |
1da177e4 LT |
913 | dev->udev = udev; |
914 | dev->netdev = netdev; | |
d79f7ef4 | 915 | netdev->netdev_ops = &rtl8150_netdev_ops; |
1da177e4 | 916 | netdev->watchdog_timeo = RTL8150_TX_TIMEOUT; |
1da177e4 LT |
917 | SET_ETHTOOL_OPS(netdev, &ops); |
918 | dev->intr_interval = 100; /* 100ms */ | |
919 | ||
920 | if (!alloc_all_urbs(dev)) { | |
921 | err("out of memory"); | |
922 | goto out; | |
923 | } | |
924 | if (!rtl8150_reset(dev)) { | |
925 | err("couldn't reset the device"); | |
926 | goto out1; | |
927 | } | |
928 | fill_skb_pool(dev); | |
929 | set_ethernet_addr(dev); | |
141b9e66 | 930 | |
1da177e4 LT |
931 | usb_set_intfdata(intf, dev); |
932 | SET_NETDEV_DEV(netdev, &intf->dev); | |
933 | if (register_netdev(netdev) != 0) { | |
934 | err("couldn't register the device"); | |
935 | goto out2; | |
936 | } | |
09abfa80 | 937 | |
880c9c66 | 938 | dev_info(&intf->dev, "%s: rtl8150 is detected\n", netdev->name); |
09abfa80 | 939 | |
1da177e4 LT |
940 | return 0; |
941 | ||
942 | out2: | |
943 | usb_set_intfdata(intf, NULL); | |
944 | free_skb_pool(dev); | |
945 | out1: | |
946 | free_all_urbs(dev); | |
947 | out: | |
948 | kfree(dev->intr_buff); | |
949 | free_netdev(netdev); | |
950 | return -EIO; | |
951 | } | |
952 | ||
953 | static void rtl8150_disconnect(struct usb_interface *intf) | |
954 | { | |
955 | rtl8150_t *dev = usb_get_intfdata(intf); | |
956 | ||
957 | usb_set_intfdata(intf, NULL); | |
958 | if (dev) { | |
959 | set_bit(RTL8150_UNPLUG, &dev->flags); | |
eff674a5 | 960 | tasklet_kill(&dev->tl); |
1da177e4 LT |
961 | unregister_netdev(dev->netdev); |
962 | unlink_all_urbs(dev); | |
963 | free_all_urbs(dev); | |
964 | free_skb_pool(dev); | |
965 | if (dev->rx_skb) | |
966 | dev_kfree_skb(dev->rx_skb); | |
967 | kfree(dev->intr_buff); | |
968 | free_netdev(dev->netdev); | |
969 | } | |
970 | } | |
971 | ||
141b9e66 | 972 | static struct usb_driver rtl8150_driver = { |
973 | .name = driver_name, | |
974 | .probe = rtl8150_probe, | |
975 | .disconnect = rtl8150_disconnect, | |
976 | .id_table = rtl8150_table, | |
977 | .suspend = rtl8150_suspend, | |
978 | .resume = rtl8150_resume | |
979 | }; | |
980 | ||
d632eb1b | 981 | module_usb_driver(rtl8150_driver); |
1da177e4 LT |
982 | |
983 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
984 | MODULE_DESCRIPTION(DRIVER_DESC); | |
985 | MODULE_LICENSE("GPL"); |