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NET: cdc-phonet, handle empty phonet header
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / tulip / uli526x.c
blobfa019cabc355579baa1df2bab18e0ed774c4c65d
1 /*
2 This program is free software; you can redistribute it and/or
3 modify it under the terms of the GNU General Public License
4 as published by the Free Software Foundation; either version 2
5 of the License, or (at your option) any later version.
6
7 This program is distributed in the hope that it will be useful,
8 but WITHOUT ANY WARRANTY; without even the implied warranty of
9 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 GNU General Public License for more details.
11
12
13 */
14
15 #define DRV_NAME "uli526x"
16 #define DRV_VERSION "0.9.3"
17 #define DRV_RELDATE "2005-7-29"
18
19 #include <linux/module.h>
20
21 #include <linux/kernel.h>
22 #include <linux/string.h>
23 #include <linux/timer.h>
24 #include <linux/errno.h>
25 #include <linux/ioport.h>
26 #include <linux/slab.h>
27 #include <linux/interrupt.h>
28 #include <linux/pci.h>
29 #include <linux/init.h>
30 #include <linux/netdevice.h>
31 #include <linux/etherdevice.h>
32 #include <linux/ethtool.h>
33 #include <linux/skbuff.h>
34 #include <linux/delay.h>
35 #include <linux/spinlock.h>
36 #include <linux/dma-mapping.h>
37 #include <linux/bitops.h>
38
39 #include <asm/processor.h>
40 #include <asm/io.h>
41 #include <asm/dma.h>
42 #include <asm/uaccess.h>
43
44
45 /* Board/System/Debug information/definition ---------------- */
46 #define PCI_ULI5261_ID 0x526110B9 /* ULi M5261 ID*/
47 #define PCI_ULI5263_ID 0x526310B9 /* ULi M5263 ID*/
48
49 #define ULI526X_IO_SIZE 0x100
50 #define TX_DESC_CNT 0x20 /* Allocated Tx descriptors */
51 #define RX_DESC_CNT 0x30 /* Allocated Rx descriptors */
52 #define TX_FREE_DESC_CNT (TX_DESC_CNT - 2) /* Max TX packet count */
53 #define TX_WAKE_DESC_CNT (TX_DESC_CNT - 3) /* TX wakeup count */
54 #define DESC_ALL_CNT (TX_DESC_CNT + RX_DESC_CNT)
55 #define TX_BUF_ALLOC 0x600
56 #define RX_ALLOC_SIZE 0x620
57 #define ULI526X_RESET 1
58 #define CR0_DEFAULT 0
59 #define CR6_DEFAULT 0x22200000
60 #define CR7_DEFAULT 0x180c1
61 #define CR15_DEFAULT 0x06 /* TxJabber RxWatchdog */
62 #define TDES0_ERR_MASK 0x4302 /* TXJT, LC, EC, FUE */
63 #define MAX_PACKET_SIZE 1514
64 #define ULI5261_MAX_MULTICAST 14
65 #define RX_COPY_SIZE 100
66 #define MAX_CHECK_PACKET 0x8000
67
68 #define ULI526X_10MHF 0
69 #define ULI526X_100MHF 1
70 #define ULI526X_10MFD 4
71 #define ULI526X_100MFD 5
72 #define ULI526X_AUTO 8
73
74 #define ULI526X_TXTH_72 0x400000 /* TX TH 72 byte */
75 #define ULI526X_TXTH_96 0x404000 /* TX TH 96 byte */
76 #define ULI526X_TXTH_128 0x0000 /* TX TH 128 byte */
77 #define ULI526X_TXTH_256 0x4000 /* TX TH 256 byte */
78 #define ULI526X_TXTH_512 0x8000 /* TX TH 512 byte */
79 #define ULI526X_TXTH_1K 0xC000 /* TX TH 1K byte */
80
81 #define ULI526X_TIMER_WUT (jiffies + HZ * 1)/* timer wakeup time : 1 second */
82 #define ULI526X_TX_TIMEOUT ((16*HZ)/2) /* tx packet time-out time 8 s" */
83 #define ULI526X_TX_KICK (4*HZ/2) /* tx packet Kick-out time 2 s" */
84
85 #define ULI526X_DBUG(dbug_now, msg, value) if (uli526x_debug || (dbug_now)) printk(KERN_ERR DRV_NAME ": %s %lx\n", (msg), (long) (value))
86
87 #define SHOW_MEDIA_TYPE(mode) printk(KERN_ERR DRV_NAME ": Change Speed to %sMhz %s duplex\n",mode & 1 ?"100":"10", mode & 4 ? "full":"half");
88
89
90 /* CR9 definition: SROM/MII */
91 #define CR9_SROM_READ 0x4800
92 #define CR9_SRCS 0x1
93 #define CR9_SRCLK 0x2
94 #define CR9_CRDOUT 0x8
95 #define SROM_DATA_0 0x0
96 #define SROM_DATA_1 0x4
97 #define PHY_DATA_1 0x20000
98 #define PHY_DATA_0 0x00000
99 #define MDCLKH 0x10000
100
101 #define PHY_POWER_DOWN 0x800
102
103 #define SROM_V41_CODE 0x14
104
105 #define SROM_CLK_WRITE(data, ioaddr) \
106 outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr); \
107 udelay(5); \
108 outl(data|CR9_SROM_READ|CR9_SRCS|CR9_SRCLK,ioaddr); \
109 udelay(5); \
110 outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr); \
111 udelay(5);
112
113 /* Structure/enum declaration ------------------------------- */
114 struct tx_desc {
115 __le32 tdes0, tdes1, tdes2, tdes3; /* Data for the card */
116 char *tx_buf_ptr; /* Data for us */
117 struct tx_desc *next_tx_desc;
118 } __attribute__(( aligned(32) ));
119
120 struct rx_desc {
121 __le32 rdes0, rdes1, rdes2, rdes3; /* Data for the card */
122 struct sk_buff *rx_skb_ptr; /* Data for us */
123 struct rx_desc *next_rx_desc;
124 } __attribute__(( aligned(32) ));
125
126 struct uli526x_board_info {
127 u32 chip_id; /* Chip vendor/Device ID */
128 struct net_device *next_dev; /* next device */
129 struct pci_dev *pdev; /* PCI device */
130 spinlock_t lock;
131
132 long ioaddr; /* I/O base address */
133 u32 cr0_data;
134 u32 cr5_data;
135 u32 cr6_data;
136 u32 cr7_data;
137 u32 cr15_data;
138
139 /* pointer for memory physical address */
140 dma_addr_t buf_pool_dma_ptr; /* Tx buffer pool memory */
141 dma_addr_t buf_pool_dma_start; /* Tx buffer pool align dword */
142 dma_addr_t desc_pool_dma_ptr; /* descriptor pool memory */
143 dma_addr_t first_tx_desc_dma;
144 dma_addr_t first_rx_desc_dma;
145
146 /* descriptor pointer */
147 unsigned char *buf_pool_ptr; /* Tx buffer pool memory */
148 unsigned char *buf_pool_start; /* Tx buffer pool align dword */
149 unsigned char *desc_pool_ptr; /* descriptor pool memory */
150 struct tx_desc *first_tx_desc;
151 struct tx_desc *tx_insert_ptr;
152 struct tx_desc *tx_remove_ptr;
153 struct rx_desc *first_rx_desc;
154 struct rx_desc *rx_insert_ptr;
155 struct rx_desc *rx_ready_ptr; /* packet come pointer */
156 unsigned long tx_packet_cnt; /* transmitted packet count */
157 unsigned long rx_avail_cnt; /* available rx descriptor count */
158 unsigned long interval_rx_cnt; /* rx packet count a callback time */
159
160 u16 dbug_cnt;
161 u16 NIC_capability; /* NIC media capability */
162 u16 PHY_reg4; /* Saved Phyxcer register 4 value */
163
164 u8 media_mode; /* user specify media mode */
165 u8 op_mode; /* real work media mode */
166 u8 phy_addr;
167 u8 link_failed; /* Ever link failed */
168 u8 wait_reset; /* Hardware failed, need to reset */
169 struct timer_list timer;
170
171 /* Driver defined statistic counter */
172 unsigned long tx_fifo_underrun;
173 unsigned long tx_loss_carrier;
174 unsigned long tx_no_carrier;
175 unsigned long tx_late_collision;
176 unsigned long tx_excessive_collision;
177 unsigned long tx_jabber_timeout;
178 unsigned long reset_count;
179 unsigned long reset_cr8;
180 unsigned long reset_fatal;
181 unsigned long reset_TXtimeout;
182
183 /* NIC SROM data */
184 unsigned char srom[128];
185 u8 init;
186 };
187
188 enum uli526x_offsets {
189 DCR0 = 0x00, DCR1 = 0x08, DCR2 = 0x10, DCR3 = 0x18, DCR4 = 0x20,
190 DCR5 = 0x28, DCR6 = 0x30, DCR7 = 0x38, DCR8 = 0x40, DCR9 = 0x48,
191 DCR10 = 0x50, DCR11 = 0x58, DCR12 = 0x60, DCR13 = 0x68, DCR14 = 0x70,
192 DCR15 = 0x78
193 };
194
195 enum uli526x_CR6_bits {
196 CR6_RXSC = 0x2, CR6_PBF = 0x8, CR6_PM = 0x40, CR6_PAM = 0x80,
197 CR6_FDM = 0x200, CR6_TXSC = 0x2000, CR6_STI = 0x100000,
198 CR6_SFT = 0x200000, CR6_RXA = 0x40000000, CR6_NO_PURGE = 0x20000000
199 };
200
201 /* Global variable declaration ----------------------------- */
202 static int __devinitdata printed_version;
203 static const char version[] __devinitconst =
204 KERN_INFO DRV_NAME ": ULi M5261/M5263 net driver, version "
205 DRV_VERSION " (" DRV_RELDATE ")\n";
206
207 static int uli526x_debug;
208 static unsigned char uli526x_media_mode = ULI526X_AUTO;
209 static u32 uli526x_cr6_user_set;
210
211 /* For module input parameter */
212 static int debug;
213 static u32 cr6set;
214 static int mode = 8;
215
216 /* function declaration ------------------------------------- */
217 static int uli526x_open(struct net_device *);
218 static netdev_tx_t uli526x_start_xmit(struct sk_buff *,
219 struct net_device *);
220 static int uli526x_stop(struct net_device *);
221 static void uli526x_set_filter_mode(struct net_device *);
222 static const struct ethtool_ops netdev_ethtool_ops;
223 static u16 read_srom_word(long, int);
224 static irqreturn_t uli526x_interrupt(int, void *);
225 #ifdef CONFIG_NET_POLL_CONTROLLER
226 static void uli526x_poll(struct net_device *dev);
227 #endif
228 static void uli526x_descriptor_init(struct uli526x_board_info *, unsigned long);
229 static void allocate_rx_buffer(struct uli526x_board_info *);
230 static void update_cr6(u32, unsigned long);
231 static void send_filter_frame(struct net_device *, int);
232 static u16 phy_read(unsigned long, u8, u8, u32);
233 static u16 phy_readby_cr10(unsigned long, u8, u8);
234 static void phy_write(unsigned long, u8, u8, u16, u32);
235 static void phy_writeby_cr10(unsigned long, u8, u8, u16);
236 static void phy_write_1bit(unsigned long, u32, u32);
237 static u16 phy_read_1bit(unsigned long, u32);
238 static u8 uli526x_sense_speed(struct uli526x_board_info *);
239 static void uli526x_process_mode(struct uli526x_board_info *);
240 static void uli526x_timer(unsigned long);
241 static void uli526x_rx_packet(struct net_device *, struct uli526x_board_info *);
242 static void uli526x_free_tx_pkt(struct net_device *, struct uli526x_board_info *);
243 static void uli526x_reuse_skb(struct uli526x_board_info *, struct sk_buff *);
244 static void uli526x_dynamic_reset(struct net_device *);
245 static void uli526x_free_rxbuffer(struct uli526x_board_info *);
246 static void uli526x_init(struct net_device *);
247 static void uli526x_set_phyxcer(struct uli526x_board_info *);
248
249 /* ULI526X network board routine ---------------------------- */
250
251 static const struct net_device_ops netdev_ops = {
252 .ndo_open = uli526x_open,
253 .ndo_stop = uli526x_stop,
254 .ndo_start_xmit = uli526x_start_xmit,
255 .ndo_set_multicast_list = uli526x_set_filter_mode,
256 .ndo_change_mtu = eth_change_mtu,
257 .ndo_set_mac_address = eth_mac_addr,
258 .ndo_validate_addr = eth_validate_addr,
259 #ifdef CONFIG_NET_POLL_CONTROLLER
260 .ndo_poll_controller = uli526x_poll,
261 #endif
262 };
263
264 /*
265 * Search ULI526X board, allocate space and register it
266 */
267
268 static int __devinit uli526x_init_one (struct pci_dev *pdev,
269 const struct pci_device_id *ent)
270 {
271 struct uli526x_board_info *db; /* board information structure */
272 struct net_device *dev;
273 int i, err;
274
275 ULI526X_DBUG(0, "uli526x_init_one()", 0);
276
277 if (!printed_version++)
278 printk(version);
279
280 /* Init network device */
281 dev = alloc_etherdev(sizeof(*db));
282 if (dev == NULL)
283 return -ENOMEM;
284 SET_NETDEV_DEV(dev, &pdev->dev);
285
286 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
287 printk(KERN_WARNING DRV_NAME ": 32-bit PCI DMA not available.\n");
288 err = -ENODEV;
289 goto err_out_free;
290 }
291
292 /* Enable Master/IO access, Disable memory access */
293 err = pci_enable_device(pdev);
294 if (err)
295 goto err_out_free;
296
297 if (!pci_resource_start(pdev, 0)) {
298 printk(KERN_ERR DRV_NAME ": I/O base is zero\n");
299 err = -ENODEV;
300 goto err_out_disable;
301 }
302
303 if (pci_resource_len(pdev, 0) < (ULI526X_IO_SIZE) ) {
304 printk(KERN_ERR DRV_NAME ": Allocated I/O size too small\n");
305 err = -ENODEV;
306 goto err_out_disable;
307 }
308
309 if (pci_request_regions(pdev, DRV_NAME)) {
310 printk(KERN_ERR DRV_NAME ": Failed to request PCI regions\n");
311 err = -ENODEV;
312 goto err_out_disable;
313 }
314
315 /* Init system & device */
316 db = netdev_priv(dev);
317
318 /* Allocate Tx/Rx descriptor memory */
319 db->desc_pool_ptr = pci_alloc_consistent(pdev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20, &db->desc_pool_dma_ptr);
320 if(db->desc_pool_ptr == NULL)
321 {
322 err = -ENOMEM;
323 goto err_out_nomem;
324 }
325 db->buf_pool_ptr = pci_alloc_consistent(pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4, &db->buf_pool_dma_ptr);
326 if(db->buf_pool_ptr == NULL)
327 {
328 err = -ENOMEM;
329 goto err_out_nomem;
330 }
331
332 db->first_tx_desc = (struct tx_desc *) db->desc_pool_ptr;
333 db->first_tx_desc_dma = db->desc_pool_dma_ptr;
334 db->buf_pool_start = db->buf_pool_ptr;
335 db->buf_pool_dma_start = db->buf_pool_dma_ptr;
336
337 db->chip_id = ent->driver_data;
338 db->ioaddr = pci_resource_start(pdev, 0);
339
340 db->pdev = pdev;
341 db->init = 1;
342
343 dev->base_addr = db->ioaddr;
344 dev->irq = pdev->irq;
345 pci_set_drvdata(pdev, dev);
346
347 /* Register some necessary functions */
348 dev->netdev_ops = &netdev_ops;
349 dev->ethtool_ops = &netdev_ethtool_ops;
350
351 spin_lock_init(&db->lock);
352
353
354 /* read 64 word srom data */
355 for (i = 0; i < 64; i++)
356 ((__le16 *) db->srom)[i] = cpu_to_le16(read_srom_word(db->ioaddr, i));
357
358 /* Set Node address */
359 if(((u16 *) db->srom)[0] == 0xffff || ((u16 *) db->srom)[0] == 0) /* SROM absent, so read MAC address from ID Table */
360 {
361 outl(0x10000, db->ioaddr + DCR0); //Diagnosis mode
362 outl(0x1c0, db->ioaddr + DCR13); //Reset dianostic pointer port
363 outl(0, db->ioaddr + DCR14); //Clear reset port
364 outl(0x10, db->ioaddr + DCR14); //Reset ID Table pointer
365 outl(0, db->ioaddr + DCR14); //Clear reset port
366 outl(0, db->ioaddr + DCR13); //Clear CR13
367 outl(0x1b0, db->ioaddr + DCR13); //Select ID Table access port
368 //Read MAC address from CR14
369 for (i = 0; i < 6; i++)
370 dev->dev_addr[i] = inl(db->ioaddr + DCR14);
371 //Read end
372 outl(0, db->ioaddr + DCR13); //Clear CR13
373 outl(0, db->ioaddr + DCR0); //Clear CR0
374 udelay(10);
375 }
376 else /*Exist SROM*/
377 {
378 for (i = 0; i < 6; i++)
379 dev->dev_addr[i] = db->srom[20 + i];
380 }
381 err = register_netdev (dev);
382 if (err)
383 goto err_out_res;
384
385 printk(KERN_INFO "%s: ULi M%04lx at pci%s, %pM, irq %d.\n",
386 dev->name,ent->driver_data >> 16,pci_name(pdev),
387 dev->dev_addr, dev->irq);
388
389 pci_set_master(pdev);
390
391 return 0;
392
393 err_out_res:
394 pci_release_regions(pdev);
395 err_out_nomem:
396 if(db->desc_pool_ptr)
397 pci_free_consistent(pdev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20,
398 db->desc_pool_ptr, db->desc_pool_dma_ptr);
399
400 if(db->buf_pool_ptr != NULL)
401 pci_free_consistent(pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4,
402 db->buf_pool_ptr, db->buf_pool_dma_ptr);
403 err_out_disable:
404 pci_disable_device(pdev);
405 err_out_free:
406 pci_set_drvdata(pdev, NULL);
407 free_netdev(dev);
408
409 return err;
410 }
411
412
413 static void __devexit uli526x_remove_one (struct pci_dev *pdev)
414 {
415 struct net_device *dev = pci_get_drvdata(pdev);
416 struct uli526x_board_info *db = netdev_priv(dev);
417
418 ULI526X_DBUG(0, "uli526x_remove_one()", 0);
419
420 pci_free_consistent(db->pdev, sizeof(struct tx_desc) *
421 DESC_ALL_CNT + 0x20, db->desc_pool_ptr,
422 db->desc_pool_dma_ptr);
423 pci_free_consistent(db->pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4,
424 db->buf_pool_ptr, db->buf_pool_dma_ptr);
425 unregister_netdev(dev);
426 pci_release_regions(pdev);
427 free_netdev(dev); /* free board information */
428 pci_set_drvdata(pdev, NULL);
429 pci_disable_device(pdev);
430 ULI526X_DBUG(0, "uli526x_remove_one() exit", 0);
431 }
432
433
434 /*
435 * Open the interface.
436 * The interface is opened whenever "ifconfig" activates it.
437 */
438
439 static int uli526x_open(struct net_device *dev)
440 {
441 int ret;
442 struct uli526x_board_info *db = netdev_priv(dev);
443
444 ULI526X_DBUG(0, "uli526x_open", 0);
445
446 /* system variable init */
447 db->cr6_data = CR6_DEFAULT | uli526x_cr6_user_set;
448 db->tx_packet_cnt = 0;
449 db->rx_avail_cnt = 0;
450 db->link_failed = 1;
451 netif_carrier_off(dev);
452 db->wait_reset = 0;
453
454 db->NIC_capability = 0xf; /* All capability*/
455 db->PHY_reg4 = 0x1e0;
456
457 /* CR6 operation mode decision */
458 db->cr6_data |= ULI526X_TXTH_256;
459 db->cr0_data = CR0_DEFAULT;
460
461 /* Initialize ULI526X board */
462 uli526x_init(dev);
463
464 ret = request_irq(dev->irq, uli526x_interrupt, IRQF_SHARED, dev->name, dev);
465 if (ret)
466 return ret;
467
468 /* Active System Interface */
469 netif_wake_queue(dev);
470
471 /* set and active a timer process */
472 init_timer(&db->timer);
473 db->timer.expires = ULI526X_TIMER_WUT + HZ * 2;
474 db->timer.data = (unsigned long)dev;
475 db->timer.function = &uli526x_timer;
476 add_timer(&db->timer);
477
478 return 0;
479 }
480
481
482 /* Initialize ULI526X board
483 * Reset ULI526X board
484 * Initialize TX/Rx descriptor chain structure
485 * Send the set-up frame
486 * Enable Tx/Rx machine
487 */
488
489 static void uli526x_init(struct net_device *dev)
490 {
491 struct uli526x_board_info *db = netdev_priv(dev);
492 unsigned long ioaddr = db->ioaddr;
493 u8 phy_tmp;
494 u8 timeout;
495 u16 phy_value;
496 u16 phy_reg_reset;
497
498
499 ULI526X_DBUG(0, "uli526x_init()", 0);
500
501 /* Reset M526x MAC controller */
502 outl(ULI526X_RESET, ioaddr + DCR0); /* RESET MAC */
503 udelay(100);
504 outl(db->cr0_data, ioaddr + DCR0);
505 udelay(5);
506
507 /* Phy addr : In some boards,M5261/M5263 phy address != 1 */
508 db->phy_addr = 1;
509 for(phy_tmp=0;phy_tmp<32;phy_tmp++)
510 {
511 phy_value=phy_read(db->ioaddr,phy_tmp,3,db->chip_id);//peer add
512 if(phy_value != 0xffff&&phy_value!=0)
513 {
514 db->phy_addr = phy_tmp;
515 break;
516 }
517 }
518 if(phy_tmp == 32)
519 printk(KERN_WARNING "Can not find the phy address!!!");
520 /* Parser SROM and media mode */
521 db->media_mode = uli526x_media_mode;
522
523 /* phyxcer capability setting */
524 phy_reg_reset = phy_read(db->ioaddr, db->phy_addr, 0, db->chip_id);
525 phy_reg_reset = (phy_reg_reset | 0x8000);
526 phy_write(db->ioaddr, db->phy_addr, 0, phy_reg_reset, db->chip_id);
527
528 /* See IEEE 802.3-2002.pdf (Section 2, Chapter "22.2.4 Management
529 * functions") or phy data sheet for details on phy reset
530 */
531 udelay(500);
532 timeout = 10;
533 while (timeout-- &&
534 phy_read(db->ioaddr, db->phy_addr, 0, db->chip_id) & 0x8000)
535 udelay(100);
536
537 /* Process Phyxcer Media Mode */
538 uli526x_set_phyxcer(db);
539
540 /* Media Mode Process */
541 if ( !(db->media_mode & ULI526X_AUTO) )
542 db->op_mode = db->media_mode; /* Force Mode */
543
544 /* Initialize Transmit/Receive decriptor and CR3/4 */
545 uli526x_descriptor_init(db, ioaddr);
546
547 /* Init CR6 to program M526X operation */
548 update_cr6(db->cr6_data, ioaddr);
549
550 /* Send setup frame */
551 send_filter_frame(dev, dev->mc_count); /* M5261/M5263 */
552
553 /* Init CR7, interrupt active bit */
554 db->cr7_data = CR7_DEFAULT;
555 outl(db->cr7_data, ioaddr + DCR7);
556
557 /* Init CR15, Tx jabber and Rx watchdog timer */
558 outl(db->cr15_data, ioaddr + DCR15);
559
560 /* Enable ULI526X Tx/Rx function */
561 db->cr6_data |= CR6_RXSC | CR6_TXSC;
562 update_cr6(db->cr6_data, ioaddr);
563 }
564
565
566 /*
567 * Hardware start transmission.
568 * Send a packet to media from the upper layer.
569 */
570
571 static netdev_tx_t uli526x_start_xmit(struct sk_buff *skb,
572 struct net_device *dev)
573 {
574 struct uli526x_board_info *db = netdev_priv(dev);
575 struct tx_desc *txptr;
576 unsigned long flags;
577
578 ULI526X_DBUG(0, "uli526x_start_xmit", 0);
579
580 /* Resource flag check */
581 netif_stop_queue(dev);
582
583 /* Too large packet check */
584 if (skb->len > MAX_PACKET_SIZE) {
585 printk(KERN_ERR DRV_NAME ": big packet = %d\n", (u16)skb->len);
586 dev_kfree_skb(skb);
587 return NETDEV_TX_OK;
588 }
589
590 spin_lock_irqsave(&db->lock, flags);
591
592 /* No Tx resource check, it never happen nromally */
593 if (db->tx_packet_cnt >= TX_FREE_DESC_CNT) {
594 spin_unlock_irqrestore(&db->lock, flags);
595 printk(KERN_ERR DRV_NAME ": No Tx resource %ld\n", db->tx_packet_cnt);
596 return NETDEV_TX_BUSY;
597 }
598
599 /* Disable NIC interrupt */
600 outl(0, dev->base_addr + DCR7);
601
602 /* transmit this packet */
603 txptr = db->tx_insert_ptr;
604 skb_copy_from_linear_data(skb, txptr->tx_buf_ptr, skb->len);
605 txptr->tdes1 = cpu_to_le32(0xe1000000 | skb->len);
606
607 /* Point to next transmit free descriptor */
608 db->tx_insert_ptr = txptr->next_tx_desc;
609
610 /* Transmit Packet Process */
611 if ( (db->tx_packet_cnt < TX_DESC_CNT) ) {
612 txptr->tdes0 = cpu_to_le32(0x80000000); /* Set owner bit */
613 db->tx_packet_cnt++; /* Ready to send */
614 outl(0x1, dev->base_addr + DCR1); /* Issue Tx polling */
615 dev->trans_start = jiffies; /* saved time stamp */
616 }
617
618 /* Tx resource check */
619 if ( db->tx_packet_cnt < TX_FREE_DESC_CNT )
620 netif_wake_queue(dev);
621
622 /* Restore CR7 to enable interrupt */
623 spin_unlock_irqrestore(&db->lock, flags);
624 outl(db->cr7_data, dev->base_addr + DCR7);
625
626 /* free this SKB */
627 dev_kfree_skb(skb);
628
629 return NETDEV_TX_OK;
630 }
631
632
633 /*
634 * Stop the interface.
635 * The interface is stopped when it is brought.
636 */
637
638 static int uli526x_stop(struct net_device *dev)
639 {
640 struct uli526x_board_info *db = netdev_priv(dev);
641 unsigned long ioaddr = dev->base_addr;
642
643 ULI526X_DBUG(0, "uli526x_stop", 0);
644
645 /* disable system */
646 netif_stop_queue(dev);
647
648 /* deleted timer */
649 del_timer_sync(&db->timer);
650
651 /* Reset & stop ULI526X board */
652 outl(ULI526X_RESET, ioaddr + DCR0);
653 udelay(5);
654 phy_write(db->ioaddr, db->phy_addr, 0, 0x8000, db->chip_id);
655
656 /* free interrupt */
657 free_irq(dev->irq, dev);
658
659 /* free allocated rx buffer */
660 uli526x_free_rxbuffer(db);
661
662 #if 0
663 /* show statistic counter */
664 printk(DRV_NAME ": FU:%lx EC:%lx LC:%lx NC:%lx LOC:%lx TXJT:%lx RESET:%lx RCR8:%lx FAL:%lx TT:%lx\n",
665 db->tx_fifo_underrun, db->tx_excessive_collision,
666 db->tx_late_collision, db->tx_no_carrier, db->tx_loss_carrier,
667 db->tx_jabber_timeout, db->reset_count, db->reset_cr8,
668 db->reset_fatal, db->reset_TXtimeout);
669 #endif
670
671 return 0;
672 }
673
674
675 /*
676 * M5261/M5263 insterrupt handler
677 * receive the packet to upper layer, free the transmitted packet
678 */
679
680 static irqreturn_t uli526x_interrupt(int irq, void *dev_id)
681 {
682 struct net_device *dev = dev_id;
683 struct uli526x_board_info *db = netdev_priv(dev);
684 unsigned long ioaddr = dev->base_addr;
685 unsigned long flags;
686
687 spin_lock_irqsave(&db->lock, flags);
688 outl(0, ioaddr + DCR7);
689
690 /* Got ULI526X status */
691 db->cr5_data = inl(ioaddr + DCR5);
692 outl(db->cr5_data, ioaddr + DCR5);
693 if ( !(db->cr5_data & 0x180c1) ) {
694 /* Restore CR7 to enable interrupt mask */
695 outl(db->cr7_data, ioaddr + DCR7);
696 spin_unlock_irqrestore(&db->lock, flags);
697 return IRQ_HANDLED;
698 }
699
700 /* Check system status */
701 if (db->cr5_data & 0x2000) {
702 /* system bus error happen */
703 ULI526X_DBUG(1, "System bus error happen. CR5=", db->cr5_data);
704 db->reset_fatal++;
705 db->wait_reset = 1; /* Need to RESET */
706 spin_unlock_irqrestore(&db->lock, flags);
707 return IRQ_HANDLED;
708 }
709
710 /* Received the coming packet */
711 if ( (db->cr5_data & 0x40) && db->rx_avail_cnt )
712 uli526x_rx_packet(dev, db);
713
714 /* reallocate rx descriptor buffer */
715 if (db->rx_avail_cnt<RX_DESC_CNT)
716 allocate_rx_buffer(db);
717
718 /* Free the transmitted descriptor */
719 if ( db->cr5_data & 0x01)
720 uli526x_free_tx_pkt(dev, db);
721
722 /* Restore CR7 to enable interrupt mask */
723 outl(db->cr7_data, ioaddr + DCR7);
724
725 spin_unlock_irqrestore(&db->lock, flags);
726 return IRQ_HANDLED;
727 }
728
729 #ifdef CONFIG_NET_POLL_CONTROLLER
730 static void uli526x_poll(struct net_device *dev)
731 {
732 /* ISR grabs the irqsave lock, so this should be safe */
733 uli526x_interrupt(dev->irq, dev);
734 }
735 #endif
736
737 /*
738 * Free TX resource after TX complete
739 */
740
741 static void uli526x_free_tx_pkt(struct net_device *dev,
742 struct uli526x_board_info * db)
743 {
744 struct tx_desc *txptr;
745 u32 tdes0;
746
747 txptr = db->tx_remove_ptr;
748 while(db->tx_packet_cnt) {
749 tdes0 = le32_to_cpu(txptr->tdes0);
750 /* printk(DRV_NAME ": tdes0=%x\n", tdes0); */
751 if (tdes0 & 0x80000000)
752 break;
753
754 /* A packet sent completed */
755 db->tx_packet_cnt--;
756 dev->stats.tx_packets++;
757
758 /* Transmit statistic counter */
759 if ( tdes0 != 0x7fffffff ) {
760 /* printk(DRV_NAME ": tdes0=%x\n", tdes0); */
761 dev->stats.collisions += (tdes0 >> 3) & 0xf;
762 dev->stats.tx_bytes += le32_to_cpu(txptr->tdes1) & 0x7ff;
763 if (tdes0 & TDES0_ERR_MASK) {
764 dev->stats.tx_errors++;
765 if (tdes0 & 0x0002) { /* UnderRun */
766 db->tx_fifo_underrun++;
767 if ( !(db->cr6_data & CR6_SFT) ) {
768 db->cr6_data = db->cr6_data | CR6_SFT;
769 update_cr6(db->cr6_data, db->ioaddr);
770 }
771 }
772 if (tdes0 & 0x0100)
773 db->tx_excessive_collision++;
774 if (tdes0 & 0x0200)
775 db->tx_late_collision++;
776 if (tdes0 & 0x0400)
777 db->tx_no_carrier++;
778 if (tdes0 & 0x0800)
779 db->tx_loss_carrier++;
780 if (tdes0 & 0x4000)
781 db->tx_jabber_timeout++;
782 }
783 }
784
785 txptr = txptr->next_tx_desc;
786 }/* End of while */
787
788 /* Update TX remove pointer to next */
789 db->tx_remove_ptr = txptr;
790
791 /* Resource available check */
792 if ( db->tx_packet_cnt < TX_WAKE_DESC_CNT )
793 netif_wake_queue(dev); /* Active upper layer, send again */
794 }
795
796
797 /*
798 * Receive the come packet and pass to upper layer
799 */
800
801 static void uli526x_rx_packet(struct net_device *dev, struct uli526x_board_info * db)
802 {
803 struct rx_desc *rxptr;
804 struct sk_buff *skb;
805 int rxlen;
806 u32 rdes0;
807
808 rxptr = db->rx_ready_ptr;
809
810 while(db->rx_avail_cnt) {
811 rdes0 = le32_to_cpu(rxptr->rdes0);
812 if (rdes0 & 0x80000000) /* packet owner check */
813 {
814 break;
815 }
816
817 db->rx_avail_cnt--;
818 db->interval_rx_cnt++;
819
820 pci_unmap_single(db->pdev, le32_to_cpu(rxptr->rdes2), RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE);
821 if ( (rdes0 & 0x300) != 0x300) {
822 /* A packet without First/Last flag */
823 /* reuse this SKB */
824 ULI526X_DBUG(0, "Reuse SK buffer, rdes0", rdes0);
825 uli526x_reuse_skb(db, rxptr->rx_skb_ptr);
826 } else {
827 /* A packet with First/Last flag */
828 rxlen = ( (rdes0 >> 16) & 0x3fff) - 4;
829
830 /* error summary bit check */
831 if (rdes0 & 0x8000) {
832 /* This is a error packet */
833 //printk(DRV_NAME ": rdes0: %lx\n", rdes0);
834 dev->stats.rx_errors++;
835 if (rdes0 & 1)
836 dev->stats.rx_fifo_errors++;
837 if (rdes0 & 2)
838 dev->stats.rx_crc_errors++;
839 if (rdes0 & 0x80)
840 dev->stats.rx_length_errors++;
841 }
842
843 if ( !(rdes0 & 0x8000) ||
844 ((db->cr6_data & CR6_PM) && (rxlen>6)) ) {
845 skb = rxptr->rx_skb_ptr;
846
847 /* Good packet, send to upper layer */
848 /* Shorst packet used new SKB */
849 if ( (rxlen < RX_COPY_SIZE) &&
850 ( (skb = dev_alloc_skb(rxlen + 2) )
851 != NULL) ) {
852 /* size less than COPY_SIZE, allocate a rxlen SKB */
853 skb_reserve(skb, 2); /* 16byte align */
854 memcpy(skb_put(skb, rxlen),
855 skb_tail_pointer(rxptr->rx_skb_ptr),
856 rxlen);
857 uli526x_reuse_skb(db, rxptr->rx_skb_ptr);
858 } else
859 skb_put(skb, rxlen);
860
861 skb->protocol = eth_type_trans(skb, dev);
862 netif_rx(skb);
863 dev->stats.rx_packets++;
864 dev->stats.rx_bytes += rxlen;
865
866 } else {
867 /* Reuse SKB buffer when the packet is error */
868 ULI526X_DBUG(0, "Reuse SK buffer, rdes0", rdes0);
869 uli526x_reuse_skb(db, rxptr->rx_skb_ptr);
870 }
871 }
872
873 rxptr = rxptr->next_rx_desc;
874 }
875
876 db->rx_ready_ptr = rxptr;
877 }
878
879
880 /*
881 * Set ULI526X multicast address
882 */
883
884 static void uli526x_set_filter_mode(struct net_device * dev)
885 {
886 struct uli526x_board_info *db = netdev_priv(dev);
887 unsigned long flags;
888
889 ULI526X_DBUG(0, "uli526x_set_filter_mode()", 0);
890 spin_lock_irqsave(&db->lock, flags);
891
892 if (dev->flags & IFF_PROMISC) {
893 ULI526X_DBUG(0, "Enable PROM Mode", 0);
894 db->cr6_data |= CR6_PM | CR6_PBF;
895 update_cr6(db->cr6_data, db->ioaddr);
896 spin_unlock_irqrestore(&db->lock, flags);
897 return;
898 }
899
900 if (dev->flags & IFF_ALLMULTI || dev->mc_count > ULI5261_MAX_MULTICAST) {
901 ULI526X_DBUG(0, "Pass all multicast address", dev->mc_count);
902 db->cr6_data &= ~(CR6_PM | CR6_PBF);
903 db->cr6_data |= CR6_PAM;
904 spin_unlock_irqrestore(&db->lock, flags);
905 return;
906 }
907
908 ULI526X_DBUG(0, "Set multicast address", dev->mc_count);
909 send_filter_frame(dev, dev->mc_count); /* M5261/M5263 */
910 spin_unlock_irqrestore(&db->lock, flags);
911 }
912
913 static void
914 ULi_ethtool_gset(struct uli526x_board_info *db, struct ethtool_cmd *ecmd)
915 {
916 ecmd->supported = (SUPPORTED_10baseT_Half |
917 SUPPORTED_10baseT_Full |
918 SUPPORTED_100baseT_Half |
919 SUPPORTED_100baseT_Full |
920 SUPPORTED_Autoneg |
921 SUPPORTED_MII);
922
923 ecmd->advertising = (ADVERTISED_10baseT_Half |
924 ADVERTISED_10baseT_Full |
925 ADVERTISED_100baseT_Half |
926 ADVERTISED_100baseT_Full |
927 ADVERTISED_Autoneg |
928 ADVERTISED_MII);
929
930
931 ecmd->port = PORT_MII;
932 ecmd->phy_address = db->phy_addr;
933
934 ecmd->transceiver = XCVR_EXTERNAL;
935
936 ecmd->speed = 10;
937 ecmd->duplex = DUPLEX_HALF;
938
939 if(db->op_mode==ULI526X_100MHF || db->op_mode==ULI526X_100MFD)
940 {
941 ecmd->speed = 100;
942 }
943 if(db->op_mode==ULI526X_10MFD || db->op_mode==ULI526X_100MFD)
944 {
945 ecmd->duplex = DUPLEX_FULL;
946 }
947 if(db->link_failed)
948 {
949 ecmd->speed = -1;
950 ecmd->duplex = -1;
951 }
952
953 if (db->media_mode & ULI526X_AUTO)
954 {
955 ecmd->autoneg = AUTONEG_ENABLE;
956 }
957 }
958
959 static void netdev_get_drvinfo(struct net_device *dev,
960 struct ethtool_drvinfo *info)
961 {
962 struct uli526x_board_info *np = netdev_priv(dev);
963
964 strcpy(info->driver, DRV_NAME);
965 strcpy(info->version, DRV_VERSION);
966 if (np->pdev)
967 strcpy(info->bus_info, pci_name(np->pdev));
968 else
969 sprintf(info->bus_info, "EISA 0x%lx %d",
970 dev->base_addr, dev->irq);
971 }
972
973 static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) {
974 struct uli526x_board_info *np = netdev_priv(dev);
975
976 ULi_ethtool_gset(np, cmd);
977
978 return 0;
979 }
980
981 static u32 netdev_get_link(struct net_device *dev) {
982 struct uli526x_board_info *np = netdev_priv(dev);
983
984 if(np->link_failed)
985 return 0;
986 else
987 return 1;
988 }
989
990 static void uli526x_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
991 {
992 wol->supported = WAKE_PHY | WAKE_MAGIC;
993 wol->wolopts = 0;
994 }
995
996 static const struct ethtool_ops netdev_ethtool_ops = {
997 .get_drvinfo = netdev_get_drvinfo,
998 .get_settings = netdev_get_settings,
999 .get_link = netdev_get_link,
1000 .get_wol = uli526x_get_wol,
1001 };
1002
1003 /*
1004 * A periodic timer routine
1005 * Dynamic media sense, allocate Rx buffer...
1006 */
1007
1008 static void uli526x_timer(unsigned long data)
1009 {
1010 u32 tmp_cr8;
1011 unsigned char tmp_cr12=0;
1012 struct net_device *dev = (struct net_device *) data;
1013 struct uli526x_board_info *db = netdev_priv(dev);
1014 unsigned long flags;
1015 u8 TmpSpeed=10;
1016
1017 //ULI526X_DBUG(0, "uli526x_timer()", 0);
1018 spin_lock_irqsave(&db->lock, flags);
1019
1020
1021 /* Dynamic reset ULI526X : system error or transmit time-out */
1022 tmp_cr8 = inl(db->ioaddr + DCR8);
1023 if ( (db->interval_rx_cnt==0) && (tmp_cr8) ) {
1024 db->reset_cr8++;
1025 db->wait_reset = 1;
1026 }
1027 db->interval_rx_cnt = 0;
1028
1029 /* TX polling kick monitor */
1030 if ( db->tx_packet_cnt &&
1031 time_after(jiffies, dev->trans_start + ULI526X_TX_KICK) ) {
1032 outl(0x1, dev->base_addr + DCR1); // Tx polling again
1033
1034 // TX Timeout
1035 if ( time_after(jiffies, dev->trans_start + ULI526X_TX_TIMEOUT) ) {
1036 db->reset_TXtimeout++;
1037 db->wait_reset = 1;
1038 printk( "%s: Tx timeout - resetting\n",
1039 dev->name);
1040 }
1041 }
1042
1043 if (db->wait_reset) {
1044 ULI526X_DBUG(0, "Dynamic Reset device", db->tx_packet_cnt);
1045 db->reset_count++;
1046 uli526x_dynamic_reset(dev);
1047 db->timer.expires = ULI526X_TIMER_WUT;
1048 add_timer(&db->timer);
1049 spin_unlock_irqrestore(&db->lock, flags);
1050 return;
1051 }
1052
1053 /* Link status check, Dynamic media type change */
1054 if((phy_read(db->ioaddr, db->phy_addr, 5, db->chip_id) & 0x01e0)!=0)
1055 tmp_cr12 = 3;
1056
1057 if ( !(tmp_cr12 & 0x3) && !db->link_failed ) {
1058 /* Link Failed */
1059 ULI526X_DBUG(0, "Link Failed", tmp_cr12);
1060 netif_carrier_off(dev);
1061 printk(KERN_INFO "uli526x: %s NIC Link is Down\n",dev->name);
1062 db->link_failed = 1;
1063
1064 /* For Force 10/100M Half/Full mode: Enable Auto-Nego mode */
1065 /* AUTO don't need */
1066 if ( !(db->media_mode & 0x8) )
1067 phy_write(db->ioaddr, db->phy_addr, 0, 0x1000, db->chip_id);
1068
1069 /* AUTO mode, if INT phyxcer link failed, select EXT device */
1070 if (db->media_mode & ULI526X_AUTO) {
1071 db->cr6_data&=~0x00000200; /* bit9=0, HD mode */
1072 update_cr6(db->cr6_data, db->ioaddr);
1073 }
1074 } else
1075 if ((tmp_cr12 & 0x3) && db->link_failed) {
1076 ULI526X_DBUG(0, "Link link OK", tmp_cr12);
1077 db->link_failed = 0;
1078
1079 /* Auto Sense Speed */
1080 if ( (db->media_mode & ULI526X_AUTO) &&
1081 uli526x_sense_speed(db) )
1082 db->link_failed = 1;
1083 uli526x_process_mode(db);
1084
1085 if(db->link_failed==0)
1086 {
1087 if(db->op_mode==ULI526X_100MHF || db->op_mode==ULI526X_100MFD)
1088 {
1089 TmpSpeed = 100;
1090 }
1091 if(db->op_mode==ULI526X_10MFD || db->op_mode==ULI526X_100MFD)
1092 {
1093 printk(KERN_INFO "uli526x: %s NIC Link is Up %d Mbps Full duplex\n",dev->name,TmpSpeed);
1094 }
1095 else
1096 {
1097 printk(KERN_INFO "uli526x: %s NIC Link is Up %d Mbps Half duplex\n",dev->name,TmpSpeed);
1098 }
1099 netif_carrier_on(dev);
1100 }
1101 /* SHOW_MEDIA_TYPE(db->op_mode); */
1102 }
1103 else if(!(tmp_cr12 & 0x3) && db->link_failed)
1104 {
1105 if(db->init==1)
1106 {
1107 printk(KERN_INFO "uli526x: %s NIC Link is Down\n",dev->name);
1108 netif_carrier_off(dev);
1109 }
1110 }
1111 db->init=0;
1112
1113 /* Timer active again */
1114 db->timer.expires = ULI526X_TIMER_WUT;
1115 add_timer(&db->timer);
1116 spin_unlock_irqrestore(&db->lock, flags);
1117 }
1118
1119
1120 /*
1121 * Stop ULI526X board
1122 * Free Tx/Rx allocated memory
1123 * Init system variable
1124 */
1125
1126 static void uli526x_reset_prepare(struct net_device *dev)
1127 {
1128 struct uli526x_board_info *db = netdev_priv(dev);
1129
1130 /* Sopt MAC controller */
1131 db->cr6_data &= ~(CR6_RXSC | CR6_TXSC); /* Disable Tx/Rx */
1132 update_cr6(db->cr6_data, dev->base_addr);
1133 outl(0, dev->base_addr + DCR7); /* Disable Interrupt */
1134 outl(inl(dev->base_addr + DCR5), dev->base_addr + DCR5);
1135
1136 /* Disable upper layer interface */
1137 netif_stop_queue(dev);
1138
1139 /* Free Rx Allocate buffer */
1140 uli526x_free_rxbuffer(db);
1141
1142 /* system variable init */
1143 db->tx_packet_cnt = 0;
1144 db->rx_avail_cnt = 0;
1145 db->link_failed = 1;
1146 db->init=1;
1147 db->wait_reset = 0;
1148 }
1149
1150
1151 /*
1152 * Dynamic reset the ULI526X board
1153 * Stop ULI526X board
1154 * Free Tx/Rx allocated memory
1155 * Reset ULI526X board
1156 * Re-initialize ULI526X board
1157 */
1158
1159 static void uli526x_dynamic_reset(struct net_device *dev)
1160 {
1161 ULI526X_DBUG(0, "uli526x_dynamic_reset()", 0);
1162
1163 uli526x_reset_prepare(dev);
1164
1165 /* Re-initialize ULI526X board */
1166 uli526x_init(dev);
1167
1168 /* Restart upper layer interface */
1169 netif_wake_queue(dev);
1170 }
1171
1172
1173 #ifdef CONFIG_PM
1174
1175 /*
1176 * Suspend the interface.
1177 */
1178
1179 static int uli526x_suspend(struct pci_dev *pdev, pm_message_t state)
1180 {
1181 struct net_device *dev = pci_get_drvdata(pdev);
1182 pci_power_t power_state;
1183 int err;
1184
1185 ULI526X_DBUG(0, "uli526x_suspend", 0);
1186
1187 if (!netdev_priv(dev))
1188 return 0;
1189
1190 pci_save_state(pdev);
1191
1192 if (!netif_running(dev))
1193 return 0;
1194
1195 netif_device_detach(dev);
1196 uli526x_reset_prepare(dev);
1197
1198 power_state = pci_choose_state(pdev, state);
1199 pci_enable_wake(pdev, power_state, 0);
1200 err = pci_set_power_state(pdev, power_state);
1201 if (err) {
1202 netif_device_attach(dev);
1203 /* Re-initialize ULI526X board */
1204 uli526x_init(dev);
1205 /* Restart upper layer interface */
1206 netif_wake_queue(dev);
1207 }
1208
1209 return err;
1210 }
1211
1212 /*
1213 * Resume the interface.
1214 */
1215
1216 static int uli526x_resume(struct pci_dev *pdev)
1217 {
1218 struct net_device *dev = pci_get_drvdata(pdev);
1219 int err;
1220
1221 ULI526X_DBUG(0, "uli526x_resume", 0);
1222
1223 if (!netdev_priv(dev))
1224 return 0;
1225
1226 pci_restore_state(pdev);
1227
1228 if (!netif_running(dev))
1229 return 0;
1230
1231 err = pci_set_power_state(pdev, PCI_D0);
1232 if (err) {
1233 printk(KERN_WARNING "%s: Could not put device into D0\n",
1234 dev->name);
1235 return err;
1236 }
1237
1238 netif_device_attach(dev);
1239 /* Re-initialize ULI526X board */
1240 uli526x_init(dev);
1241 /* Restart upper layer interface */
1242 netif_wake_queue(dev);
1243
1244 return 0;
1245 }
1246
1247 #else /* !CONFIG_PM */
1248
1249 #define uli526x_suspend NULL
1250 #define uli526x_resume NULL
1251
1252 #endif /* !CONFIG_PM */
1253
1254
1255 /*
1256 * free all allocated rx buffer
1257 */
1258
1259 static void uli526x_free_rxbuffer(struct uli526x_board_info * db)
1260 {
1261 ULI526X_DBUG(0, "uli526x_free_rxbuffer()", 0);
1262
1263 /* free allocated rx buffer */
1264 while (db->rx_avail_cnt) {
1265 dev_kfree_skb(db->rx_ready_ptr->rx_skb_ptr);
1266 db->rx_ready_ptr = db->rx_ready_ptr->next_rx_desc;
1267 db->rx_avail_cnt--;
1268 }
1269 }
1270
1271
1272 /*
1273 * Reuse the SK buffer
1274 */
1275
1276 static void uli526x_reuse_skb(struct uli526x_board_info *db, struct sk_buff * skb)
1277 {
1278 struct rx_desc *rxptr = db->rx_insert_ptr;
1279
1280 if (!(rxptr->rdes0 & cpu_to_le32(0x80000000))) {
1281 rxptr->rx_skb_ptr = skb;
1282 rxptr->rdes2 = cpu_to_le32(pci_map_single(db->pdev,
1283 skb_tail_pointer(skb),
1284 RX_ALLOC_SIZE,
1285 PCI_DMA_FROMDEVICE));
1286 wmb();
1287 rxptr->rdes0 = cpu_to_le32(0x80000000);
1288 db->rx_avail_cnt++;
1289 db->rx_insert_ptr = rxptr->next_rx_desc;
1290 } else
1291 ULI526X_DBUG(0, "SK Buffer reuse method error", db->rx_avail_cnt);
1292 }
1293
1294
1295 /*
1296 * Initialize transmit/Receive descriptor
1297 * Using Chain structure, and allocate Tx/Rx buffer
1298 */
1299
1300 static void uli526x_descriptor_init(struct uli526x_board_info *db, unsigned long ioaddr)
1301 {
1302 struct tx_desc *tmp_tx;
1303 struct rx_desc *tmp_rx;
1304 unsigned char *tmp_buf;
1305 dma_addr_t tmp_tx_dma, tmp_rx_dma;
1306 dma_addr_t tmp_buf_dma;
1307 int i;
1308
1309 ULI526X_DBUG(0, "uli526x_descriptor_init()", 0);
1310
1311 /* tx descriptor start pointer */
1312 db->tx_insert_ptr = db->first_tx_desc;
1313 db->tx_remove_ptr = db->first_tx_desc;
1314 outl(db->first_tx_desc_dma, ioaddr + DCR4); /* TX DESC address */
1315
1316 /* rx descriptor start pointer */
1317 db->first_rx_desc = (void *)db->first_tx_desc + sizeof(struct tx_desc) * TX_DESC_CNT;
1318 db->first_rx_desc_dma = db->first_tx_desc_dma + sizeof(struct tx_desc) * TX_DESC_CNT;
1319 db->rx_insert_ptr = db->first_rx_desc;
1320 db->rx_ready_ptr = db->first_rx_desc;
1321 outl(db->first_rx_desc_dma, ioaddr + DCR3); /* RX DESC address */
1322
1323 /* Init Transmit chain */
1324 tmp_buf = db->buf_pool_start;
1325 tmp_buf_dma = db->buf_pool_dma_start;
1326 tmp_tx_dma = db->first_tx_desc_dma;
1327 for (tmp_tx = db->first_tx_desc, i = 0; i < TX_DESC_CNT; i++, tmp_tx++) {
1328 tmp_tx->tx_buf_ptr = tmp_buf;
1329 tmp_tx->tdes0 = cpu_to_le32(0);
1330 tmp_tx->tdes1 = cpu_to_le32(0x81000000); /* IC, chain */
1331 tmp_tx->tdes2 = cpu_to_le32(tmp_buf_dma);
1332 tmp_tx_dma += sizeof(struct tx_desc);
1333 tmp_tx->tdes3 = cpu_to_le32(tmp_tx_dma);
1334 tmp_tx->next_tx_desc = tmp_tx + 1;
1335 tmp_buf = tmp_buf + TX_BUF_ALLOC;
1336 tmp_buf_dma = tmp_buf_dma + TX_BUF_ALLOC;
1337 }
1338 (--tmp_tx)->tdes3 = cpu_to_le32(db->first_tx_desc_dma);
1339 tmp_tx->next_tx_desc = db->first_tx_desc;
1340
1341 /* Init Receive descriptor chain */
1342 tmp_rx_dma=db->first_rx_desc_dma;
1343 for (tmp_rx = db->first_rx_desc, i = 0; i < RX_DESC_CNT; i++, tmp_rx++) {
1344 tmp_rx->rdes0 = cpu_to_le32(0);
1345 tmp_rx->rdes1 = cpu_to_le32(0x01000600);
1346 tmp_rx_dma += sizeof(struct rx_desc);
1347 tmp_rx->rdes3 = cpu_to_le32(tmp_rx_dma);
1348 tmp_rx->next_rx_desc = tmp_rx + 1;
1349 }
1350 (--tmp_rx)->rdes3 = cpu_to_le32(db->first_rx_desc_dma);
1351 tmp_rx->next_rx_desc = db->first_rx_desc;
1352
1353 /* pre-allocate Rx buffer */
1354 allocate_rx_buffer(db);
1355 }
1356
1357
1358 /*
1359 * Update CR6 value
1360 * Firstly stop ULI526X, then written value and start
1361 */
1362
1363 static void update_cr6(u32 cr6_data, unsigned long ioaddr)
1364 {
1365
1366 outl(cr6_data, ioaddr + DCR6);
1367 udelay(5);
1368 }
1369
1370
1371 /*
1372 * Send a setup frame for M5261/M5263
1373 * This setup frame initialize ULI526X address filter mode
1374 */
1375
1376 #ifdef __BIG_ENDIAN
1377 #define FLT_SHIFT 16
1378 #else
1379 #define FLT_SHIFT 0
1380 #endif
1381
1382 static void send_filter_frame(struct net_device *dev, int mc_cnt)
1383 {
1384 struct uli526x_board_info *db = netdev_priv(dev);
1385 struct dev_mc_list *mcptr;
1386 struct tx_desc *txptr;
1387 u16 * addrptr;
1388 u32 * suptr;
1389 int i;
1390
1391 ULI526X_DBUG(0, "send_filter_frame()", 0);
1392
1393 txptr = db->tx_insert_ptr;
1394 suptr = (u32 *) txptr->tx_buf_ptr;
1395
1396 /* Node address */
1397 addrptr = (u16 *) dev->dev_addr;
1398 *suptr++ = addrptr[0] << FLT_SHIFT;
1399 *suptr++ = addrptr[1] << FLT_SHIFT;
1400 *suptr++ = addrptr[2] << FLT_SHIFT;
1401
1402 /* broadcast address */
1403 *suptr++ = 0xffff << FLT_SHIFT;
1404 *suptr++ = 0xffff << FLT_SHIFT;
1405 *suptr++ = 0xffff << FLT_SHIFT;
1406
1407 /* fit the multicast address */
1408 for (mcptr = dev->mc_list, i = 0; i < mc_cnt; i++, mcptr = mcptr->next) {
1409 addrptr = (u16 *) mcptr->dmi_addr;
1410 *suptr++ = addrptr[0] << FLT_SHIFT;
1411 *suptr++ = addrptr[1] << FLT_SHIFT;
1412 *suptr++ = addrptr[2] << FLT_SHIFT;
1413 }
1414
1415 for (; i<14; i++) {
1416 *suptr++ = 0xffff << FLT_SHIFT;
1417 *suptr++ = 0xffff << FLT_SHIFT;
1418 *suptr++ = 0xffff << FLT_SHIFT;
1419 }
1420
1421 /* prepare the setup frame */
1422 db->tx_insert_ptr = txptr->next_tx_desc;
1423 txptr->tdes1 = cpu_to_le32(0x890000c0);
1424
1425 /* Resource Check and Send the setup packet */
1426 if (db->tx_packet_cnt < TX_DESC_CNT) {
1427 /* Resource Empty */
1428 db->tx_packet_cnt++;
1429 txptr->tdes0 = cpu_to_le32(0x80000000);
1430 update_cr6(db->cr6_data | 0x2000, dev->base_addr);
1431 outl(0x1, dev->base_addr + DCR1); /* Issue Tx polling */
1432 update_cr6(db->cr6_data, dev->base_addr);
1433 dev->trans_start = jiffies;
1434 } else
1435 printk(KERN_ERR DRV_NAME ": No Tx resource - Send_filter_frame!\n");
1436 }
1437
1438
1439 /*
1440 * Allocate rx buffer,
1441 * As possible as allocate maxiumn Rx buffer
1442 */
1443
1444 static void allocate_rx_buffer(struct uli526x_board_info *db)
1445 {
1446 struct rx_desc *rxptr;
1447 struct sk_buff *skb;
1448
1449 rxptr = db->rx_insert_ptr;
1450
1451 while(db->rx_avail_cnt < RX_DESC_CNT) {
1452 if ( ( skb = dev_alloc_skb(RX_ALLOC_SIZE) ) == NULL )
1453 break;
1454 rxptr->rx_skb_ptr = skb; /* FIXME (?) */
1455 rxptr->rdes2 = cpu_to_le32(pci_map_single(db->pdev,
1456 skb_tail_pointer(skb),
1457 RX_ALLOC_SIZE,
1458 PCI_DMA_FROMDEVICE));
1459 wmb();
1460 rxptr->rdes0 = cpu_to_le32(0x80000000);
1461 rxptr = rxptr->next_rx_desc;
1462 db->rx_avail_cnt++;
1463 }
1464
1465 db->rx_insert_ptr = rxptr;
1466 }
1467
1468
1469 /*
1470 * Read one word data from the serial ROM
1471 */
1472
1473 static u16 read_srom_word(long ioaddr, int offset)
1474 {
1475 int i;
1476 u16 srom_data = 0;
1477 long cr9_ioaddr = ioaddr + DCR9;
1478
1479 outl(CR9_SROM_READ, cr9_ioaddr);
1480 outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
1481
1482 /* Send the Read Command 110b */
1483 SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr);
1484 SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr);
1485 SROM_CLK_WRITE(SROM_DATA_0, cr9_ioaddr);
1486
1487 /* Send the offset */
1488 for (i = 5; i >= 0; i--) {
1489 srom_data = (offset & (1 << i)) ? SROM_DATA_1 : SROM_DATA_0;
1490 SROM_CLK_WRITE(srom_data, cr9_ioaddr);
1491 }
1492
1493 outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
1494
1495 for (i = 16; i > 0; i--) {
1496 outl(CR9_SROM_READ | CR9_SRCS | CR9_SRCLK, cr9_ioaddr);
1497 udelay(5);
1498 srom_data = (srom_data << 1) | ((inl(cr9_ioaddr) & CR9_CRDOUT) ? 1 : 0);
1499 outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
1500 udelay(5);
1501 }
1502
1503 outl(CR9_SROM_READ, cr9_ioaddr);
1504 return srom_data;
1505 }
1506
1507
1508 /*
1509 * Auto sense the media mode
1510 */
1511
1512 static u8 uli526x_sense_speed(struct uli526x_board_info * db)
1513 {
1514 u8 ErrFlag = 0;
1515 u16 phy_mode;
1516
1517 phy_mode = phy_read(db->ioaddr, db->phy_addr, 1, db->chip_id);
1518 phy_mode = phy_read(db->ioaddr, db->phy_addr, 1, db->chip_id);
1519
1520 if ( (phy_mode & 0x24) == 0x24 ) {
1521
1522 phy_mode = ((phy_read(db->ioaddr, db->phy_addr, 5, db->chip_id) & 0x01e0)<<7);
1523 if(phy_mode&0x8000)
1524 phy_mode = 0x8000;
1525 else if(phy_mode&0x4000)
1526 phy_mode = 0x4000;
1527 else if(phy_mode&0x2000)
1528 phy_mode = 0x2000;
1529 else
1530 phy_mode = 0x1000;
1531
1532 /* printk(DRV_NAME ": Phy_mode %x ",phy_mode); */
1533 switch (phy_mode) {
1534 case 0x1000: db->op_mode = ULI526X_10MHF; break;
1535 case 0x2000: db->op_mode = ULI526X_10MFD; break;
1536 case 0x4000: db->op_mode = ULI526X_100MHF; break;
1537 case 0x8000: db->op_mode = ULI526X_100MFD; break;
1538 default: db->op_mode = ULI526X_10MHF; ErrFlag = 1; break;
1539 }
1540 } else {
1541 db->op_mode = ULI526X_10MHF;
1542 ULI526X_DBUG(0, "Link Failed :", phy_mode);
1543 ErrFlag = 1;
1544 }
1545
1546 return ErrFlag;
1547 }
1548
1549
1550 /*
1551 * Set 10/100 phyxcer capability
1552 * AUTO mode : phyxcer register4 is NIC capability
1553 * Force mode: phyxcer register4 is the force media
1554 */
1555
1556 static void uli526x_set_phyxcer(struct uli526x_board_info *db)
1557 {
1558 u16 phy_reg;
1559
1560 /* Phyxcer capability setting */
1561 phy_reg = phy_read(db->ioaddr, db->phy_addr, 4, db->chip_id) & ~0x01e0;
1562
1563 if (db->media_mode & ULI526X_AUTO) {
1564 /* AUTO Mode */
1565 phy_reg |= db->PHY_reg4;
1566 } else {
1567 /* Force Mode */
1568 switch(db->media_mode) {
1569 case ULI526X_10MHF: phy_reg |= 0x20; break;
1570 case ULI526X_10MFD: phy_reg |= 0x40; break;
1571 case ULI526X_100MHF: phy_reg |= 0x80; break;
1572 case ULI526X_100MFD: phy_reg |= 0x100; break;
1573 }
1574
1575 }
1576
1577 /* Write new capability to Phyxcer Reg4 */
1578 if ( !(phy_reg & 0x01e0)) {
1579 phy_reg|=db->PHY_reg4;
1580 db->media_mode|=ULI526X_AUTO;
1581 }
1582 phy_write(db->ioaddr, db->phy_addr, 4, phy_reg, db->chip_id);
1583
1584 /* Restart Auto-Negotiation */
1585 phy_write(db->ioaddr, db->phy_addr, 0, 0x1200, db->chip_id);
1586 udelay(50);
1587 }
1588
1589
1590 /*
1591 * Process op-mode
1592 AUTO mode : PHY controller in Auto-negotiation Mode
1593 * Force mode: PHY controller in force mode with HUB
1594 * N-way force capability with SWITCH
1595 */
1596
1597 static void uli526x_process_mode(struct uli526x_board_info *db)
1598 {
1599 u16 phy_reg;
1600
1601 /* Full Duplex Mode Check */
1602 if (db->op_mode & 0x4)
1603 db->cr6_data |= CR6_FDM; /* Set Full Duplex Bit */
1604 else
1605 db->cr6_data &= ~CR6_FDM; /* Clear Full Duplex Bit */
1606
1607 update_cr6(db->cr6_data, db->ioaddr);
1608
1609 /* 10/100M phyxcer force mode need */
1610 if ( !(db->media_mode & 0x8)) {
1611 /* Forece Mode */
1612 phy_reg = phy_read(db->ioaddr, db->phy_addr, 6, db->chip_id);
1613 if ( !(phy_reg & 0x1) ) {
1614 /* parter without N-Way capability */
1615 phy_reg = 0x0;
1616 switch(db->op_mode) {
1617 case ULI526X_10MHF: phy_reg = 0x0; break;
1618 case ULI526X_10MFD: phy_reg = 0x100; break;
1619 case ULI526X_100MHF: phy_reg = 0x2000; break;
1620 case ULI526X_100MFD: phy_reg = 0x2100; break;
1621 }
1622 phy_write(db->ioaddr, db->phy_addr, 0, phy_reg, db->chip_id);
1623 }
1624 }
1625 }
1626
1627
1628 /*
1629 * Write a word to Phy register
1630 */
1631
1632 static void phy_write(unsigned long iobase, u8 phy_addr, u8 offset, u16 phy_data, u32 chip_id)
1633 {
1634 u16 i;
1635 unsigned long ioaddr;
1636
1637 if(chip_id == PCI_ULI5263_ID)
1638 {
1639 phy_writeby_cr10(iobase, phy_addr, offset, phy_data);
1640 return;
1641 }
1642 /* M5261/M5263 Chip */
1643 ioaddr = iobase + DCR9;
1644
1645 /* Send 33 synchronization clock to Phy controller */
1646 for (i = 0; i < 35; i++)
1647 phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
1648
1649 /* Send start command(01) to Phy */
1650 phy_write_1bit(ioaddr, PHY_DATA_0, chip_id);
1651 phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
1652
1653 /* Send write command(01) to Phy */
1654 phy_write_1bit(ioaddr, PHY_DATA_0, chip_id);
1655 phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
1656
1657 /* Send Phy address */
1658 for (i = 0x10; i > 0; i = i >> 1)
1659 phy_write_1bit(ioaddr, phy_addr & i ? PHY_DATA_1 : PHY_DATA_0, chip_id);
1660
1661 /* Send register address */
1662 for (i = 0x10; i > 0; i = i >> 1)
1663 phy_write_1bit(ioaddr, offset & i ? PHY_DATA_1 : PHY_DATA_0, chip_id);
1664
1665 /* written trasnition */
1666 phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
1667 phy_write_1bit(ioaddr, PHY_DATA_0, chip_id);
1668
1669 /* Write a word data to PHY controller */
1670 for ( i = 0x8000; i > 0; i >>= 1)
1671 phy_write_1bit(ioaddr, phy_data & i ? PHY_DATA_1 : PHY_DATA_0, chip_id);
1672
1673 }
1674
1675
1676 /*
1677 * Read a word data from phy register
1678 */
1679
1680 static u16 phy_read(unsigned long iobase, u8 phy_addr, u8 offset, u32 chip_id)
1681 {
1682 int i;
1683 u16 phy_data;
1684 unsigned long ioaddr;
1685
1686 if(chip_id == PCI_ULI5263_ID)
1687 return phy_readby_cr10(iobase, phy_addr, offset);
1688 /* M5261/M5263 Chip */
1689 ioaddr = iobase + DCR9;
1690
1691 /* Send 33 synchronization clock to Phy controller */
1692 for (i = 0; i < 35; i++)
1693 phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
1694
1695 /* Send start command(01) to Phy */
1696 phy_write_1bit(ioaddr, PHY_DATA_0, chip_id);
1697 phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
1698
1699 /* Send read command(10) to Phy */
1700 phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
1701 phy_write_1bit(ioaddr, PHY_DATA_0, chip_id);
1702
1703 /* Send Phy address */
1704 for (i = 0x10; i > 0; i = i >> 1)
1705 phy_write_1bit(ioaddr, phy_addr & i ? PHY_DATA_1 : PHY_DATA_0, chip_id);
1706
1707 /* Send register address */
1708 for (i = 0x10; i > 0; i = i >> 1)
1709 phy_write_1bit(ioaddr, offset & i ? PHY_DATA_1 : PHY_DATA_0, chip_id);
1710
1711 /* Skip transition state */
1712 phy_read_1bit(ioaddr, chip_id);
1713
1714 /* read 16bit data */
1715 for (phy_data = 0, i = 0; i < 16; i++) {
1716 phy_data <<= 1;
1717 phy_data |= phy_read_1bit(ioaddr, chip_id);
1718 }
1719
1720 return phy_data;
1721 }
1722
1723 static u16 phy_readby_cr10(unsigned long iobase, u8 phy_addr, u8 offset)
1724 {
1725 unsigned long ioaddr,cr10_value;
1726
1727 ioaddr = iobase + DCR10;
1728 cr10_value = phy_addr;
1729 cr10_value = (cr10_value<<5) + offset;
1730 cr10_value = (cr10_value<<16) + 0x08000000;
1731 outl(cr10_value,ioaddr);
1732 udelay(1);
1733 while(1)
1734 {
1735 cr10_value = inl(ioaddr);
1736 if(cr10_value&0x10000000)
1737 break;
1738 }
1739 return (cr10_value&0x0ffff);
1740 }
1741
1742 static void phy_writeby_cr10(unsigned long iobase, u8 phy_addr, u8 offset, u16 phy_data)
1743 {
1744 unsigned long ioaddr,cr10_value;
1745
1746 ioaddr = iobase + DCR10;
1747 cr10_value = phy_addr;
1748 cr10_value = (cr10_value<<5) + offset;
1749 cr10_value = (cr10_value<<16) + 0x04000000 + phy_data;
1750 outl(cr10_value,ioaddr);
1751 udelay(1);
1752 }
1753 /*
1754 * Write one bit data to Phy Controller
1755 */
1756
1757 static void phy_write_1bit(unsigned long ioaddr, u32 phy_data, u32 chip_id)
1758 {
1759 outl(phy_data , ioaddr); /* MII Clock Low */
1760 udelay(1);
1761 outl(phy_data | MDCLKH, ioaddr); /* MII Clock High */
1762 udelay(1);
1763 outl(phy_data , ioaddr); /* MII Clock Low */
1764 udelay(1);
1765 }
1766
1767
1768 /*
1769 * Read one bit phy data from PHY controller
1770 */
1771
1772 static u16 phy_read_1bit(unsigned long ioaddr, u32 chip_id)
1773 {
1774 u16 phy_data;
1775
1776 outl(0x50000 , ioaddr);
1777 udelay(1);
1778 phy_data = ( inl(ioaddr) >> 19 ) & 0x1;
1779 outl(0x40000 , ioaddr);
1780 udelay(1);
1781
1782 return phy_data;
1783 }
1784
1785
1786 static struct pci_device_id uli526x_pci_tbl[] = {
1787 { 0x10B9, 0x5261, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_ULI5261_ID },
1788 { 0x10B9, 0x5263, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_ULI5263_ID },
1789 { 0, }
1790 };
1791 MODULE_DEVICE_TABLE(pci, uli526x_pci_tbl);
1792
1793
1794 static struct pci_driver uli526x_driver = {
1795 .name = "uli526x",
1796 .id_table = uli526x_pci_tbl,
1797 .probe = uli526x_init_one,
1798 .remove = __devexit_p(uli526x_remove_one),
1799 .suspend = uli526x_suspend,
1800 .resume = uli526x_resume,
1801 };
1802
1803 MODULE_AUTHOR("Peer Chen, peer.chen@uli.com.tw");
1804 MODULE_DESCRIPTION("ULi M5261/M5263 fast ethernet driver");
1805 MODULE_LICENSE("GPL");
1806
1807 module_param(debug, int, 0644);
1808 module_param(mode, int, 0);
1809 module_param(cr6set, int, 0);
1810 MODULE_PARM_DESC(debug, "ULi M5261/M5263 enable debugging (0-1)");
1811 MODULE_PARM_DESC(mode, "ULi M5261/M5263: Bit 0: 10/100Mbps, bit 2: duplex, bit 8: HomePNA");
1812
1813 /* Description:
1814 * when user used insmod to add module, system invoked init_module()
1815 * to register the services.
1816 */
1817
1818 static int __init uli526x_init_module(void)
1819 {
1820
1821 printk(version);
1822 printed_version = 1;
1823
1824 ULI526X_DBUG(0, "init_module() ", debug);
1825
1826 if (debug)
1827 uli526x_debug = debug; /* set debug flag */
1828 if (cr6set)
1829 uli526x_cr6_user_set = cr6set;
1830
1831 switch (mode) {
1832 case ULI526X_10MHF:
1833 case ULI526X_100MHF:
1834 case ULI526X_10MFD:
1835 case ULI526X_100MFD:
1836 uli526x_media_mode = mode;
1837 break;
1838 default:
1839 uli526x_media_mode = ULI526X_AUTO;
1840 break;
1841 }
1842
1843 return pci_register_driver(&uli526x_driver);
1844 }
1845
1846
1847 /*
1848 * Description:
1849 * when user used rmmod to delete module, system invoked clean_module()
1850 * to un-register all registered services.
1851 */
1852
1853 static void __exit uli526x_cleanup_module(void)
1854 {
1855 ULI526X_DBUG(0, "uli526x_clean_module() ", debug);
1856 pci_unregister_driver(&uli526x_driver);
1857 }
1858
1859 module_init(uli526x_init_module);
1860 module_exit(uli526x_cleanup_module);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree