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epca.c: reformat comments and coding style improvements
[linux-2.6/openmoko-kernel.git] / drivers / net / tulip / dmfe.c
blobca90566d5bcd4f5a0f8cb1e06de329103280ffbe
1 /*
2 A Davicom DM9102/DM9102A/DM9102A+DM9801/DM9102A+DM9802 NIC fast
3 ethernet driver for Linux.
4 Copyright (C) 1997 Sten Wang
5
6 This program is free software; you can redistribute it and/or
7 modify it under the terms of the GNU General Public License
8 as published by the Free Software Foundation; either version 2
9 of the License, or (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 DAVICOM Web-Site: www.davicom.com.tw
17
18 Author: Sten Wang, 886-3-5798797-8517, E-mail: sten_wang@davicom.com.tw
19 Maintainer: Tobias Ringstrom <tori@unhappy.mine.nu>
20
21 (C)Copyright 1997-1998 DAVICOM Semiconductor,Inc. All Rights Reserved.
22
23 Marcelo Tosatti <marcelo@conectiva.com.br> :
24 Made it compile in 2.3 (device to net_device)
25
26 Alan Cox <alan@redhat.com> :
27 Cleaned up for kernel merge.
28 Removed the back compatibility support
29 Reformatted, fixing spelling etc as I went
30 Removed IRQ 0-15 assumption
31
32 Jeff Garzik <jgarzik@pobox.com> :
33 Updated to use new PCI driver API.
34 Resource usage cleanups.
35 Report driver version to user.
36
37 Tobias Ringstrom <tori@unhappy.mine.nu> :
38 Cleaned up and added SMP safety. Thanks go to Jeff Garzik,
39 Andrew Morton and Frank Davis for the SMP safety fixes.
40
41 Vojtech Pavlik <vojtech@suse.cz> :
42 Cleaned up pointer arithmetics.
43 Fixed a lot of 64bit issues.
44 Cleaned up printk()s a bit.
45 Fixed some obvious big endian problems.
46
47 Tobias Ringstrom <tori@unhappy.mine.nu> :
48 Use time_after for jiffies calculation. Added ethtool
49 support. Updated PCI resource allocation. Do not
50 forget to unmap PCI mapped skbs.
51
52 Alan Cox <alan@redhat.com>
53 Added new PCI identifiers provided by Clear Zhang at ALi
54 for their 1563 ethernet device.
55
56 TODO
57
58 Check on 64 bit boxes.
59 Check and fix on big endian boxes.
60
61 Test and make sure PCI latency is now correct for all cases.
62 */
63
64 #define DRV_NAME "dmfe"
65 #define DRV_VERSION "1.36.4"
66 #define DRV_RELDATE "2002-01-17"
67
68 #include <linux/module.h>
69 #include <linux/kernel.h>
70 #include <linux/string.h>
71 #include <linux/timer.h>
72 #include <linux/ptrace.h>
73 #include <linux/errno.h>
74 #include <linux/ioport.h>
75 #include <linux/slab.h>
76 #include <linux/interrupt.h>
77 #include <linux/pci.h>
78 #include <linux/dma-mapping.h>
79 #include <linux/init.h>
80 #include <linux/netdevice.h>
81 #include <linux/etherdevice.h>
82 #include <linux/ethtool.h>
83 #include <linux/skbuff.h>
84 #include <linux/delay.h>
85 #include <linux/spinlock.h>
86 #include <linux/crc32.h>
87 #include <linux/bitops.h>
88
89 #include <asm/processor.h>
90 #include <asm/io.h>
91 #include <asm/dma.h>
92 #include <asm/uaccess.h>
93 #include <asm/irq.h>
94
95
96 /* Board/System/Debug information/definition ---------------- */
97 #define PCI_DM9132_ID 0x91321282 /* Davicom DM9132 ID */
98 #define PCI_DM9102_ID 0x91021282 /* Davicom DM9102 ID */
99 #define PCI_DM9100_ID 0x91001282 /* Davicom DM9100 ID */
100 #define PCI_DM9009_ID 0x90091282 /* Davicom DM9009 ID */
101
102 #define DM9102_IO_SIZE 0x80
103 #define DM9102A_IO_SIZE 0x100
104 #define TX_MAX_SEND_CNT 0x1 /* Maximum tx packet per time */
105 #define TX_DESC_CNT 0x10 /* Allocated Tx descriptors */
106 #define RX_DESC_CNT 0x20 /* Allocated Rx descriptors */
107 #define TX_FREE_DESC_CNT (TX_DESC_CNT - 2) /* Max TX packet count */
108 #define TX_WAKE_DESC_CNT (TX_DESC_CNT - 3) /* TX wakeup count */
109 #define DESC_ALL_CNT (TX_DESC_CNT + RX_DESC_CNT)
110 #define TX_BUF_ALLOC 0x600
111 #define RX_ALLOC_SIZE 0x620
112 #define DM910X_RESET 1
113 #define CR0_DEFAULT 0x00E00000 /* TX & RX burst mode */
114 #define CR6_DEFAULT 0x00080000 /* HD */
115 #define CR7_DEFAULT 0x180c1
116 #define CR15_DEFAULT 0x06 /* TxJabber RxWatchdog */
117 #define TDES0_ERR_MASK 0x4302 /* TXJT, LC, EC, FUE */
118 #define MAX_PACKET_SIZE 1514
119 #define DMFE_MAX_MULTICAST 14
120 #define RX_COPY_SIZE 100
121 #define MAX_CHECK_PACKET 0x8000
122 #define DM9801_NOISE_FLOOR 8
123 #define DM9802_NOISE_FLOOR 5
124
125 #define DMFE_WOL_LINKCHANGE 0x20000000
126 #define DMFE_WOL_SAMPLEPACKET 0x10000000
127 #define DMFE_WOL_MAGICPACKET 0x08000000
128
129
130 #define DMFE_10MHF 0
131 #define DMFE_100MHF 1
132 #define DMFE_10MFD 4
133 #define DMFE_100MFD 5
134 #define DMFE_AUTO 8
135 #define DMFE_1M_HPNA 0x10
136
137 #define DMFE_TXTH_72 0x400000 /* TX TH 72 byte */
138 #define DMFE_TXTH_96 0x404000 /* TX TH 96 byte */
139 #define DMFE_TXTH_128 0x0000 /* TX TH 128 byte */
140 #define DMFE_TXTH_256 0x4000 /* TX TH 256 byte */
141 #define DMFE_TXTH_512 0x8000 /* TX TH 512 byte */
142 #define DMFE_TXTH_1K 0xC000 /* TX TH 1K byte */
143
144 #define DMFE_TIMER_WUT (jiffies + HZ * 1)/* timer wakeup time : 1 second */
145 #define DMFE_TX_TIMEOUT ((3*HZ)/2) /* tx packet time-out time 1.5 s" */
146 #define DMFE_TX_KICK (HZ/2) /* tx packet Kick-out time 0.5 s" */
147
148 #define DMFE_DBUG(dbug_now, msg, value) \
149 do { \
150 if (dmfe_debug || (dbug_now)) \
151 printk(KERN_ERR DRV_NAME ": %s %lx\n",\
152 (msg), (long) (value)); \
153 } while (0)
154
155 #define SHOW_MEDIA_TYPE(mode) \
156 printk (KERN_INFO DRV_NAME ": Change Speed to %sMhz %s duplex\n" , \
157 (mode & 1) ? "100":"10", (mode & 4) ? "full":"half");
158
159
160 /* CR9 definition: SROM/MII */
161 #define CR9_SROM_READ 0x4800
162 #define CR9_SRCS 0x1
163 #define CR9_SRCLK 0x2
164 #define CR9_CRDOUT 0x8
165 #define SROM_DATA_0 0x0
166 #define SROM_DATA_1 0x4
167 #define PHY_DATA_1 0x20000
168 #define PHY_DATA_0 0x00000
169 #define MDCLKH 0x10000
170
171 #define PHY_POWER_DOWN 0x800
172
173 #define SROM_V41_CODE 0x14
174
175 #define SROM_CLK_WRITE(data, ioaddr) \
176 outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr); \
177 udelay(5); \
178 outl(data|CR9_SROM_READ|CR9_SRCS|CR9_SRCLK,ioaddr); \
179 udelay(5); \
180 outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr); \
181 udelay(5);
182
183 #define __CHK_IO_SIZE(pci_id, dev_rev) \
184 (( ((pci_id)==PCI_DM9132_ID) || ((dev_rev) >= 0x30) ) ? \
185 DM9102A_IO_SIZE: DM9102_IO_SIZE)
186
187 #define CHK_IO_SIZE(pci_dev) \
188 (__CHK_IO_SIZE(((pci_dev)->device << 16) | (pci_dev)->vendor, \
189 (pci_dev)->revision))
190
191 /* Sten Check */
192 #define DEVICE net_device
193
194 /* Structure/enum declaration ------------------------------- */
195 struct tx_desc {
196 __le32 tdes0, tdes1, tdes2, tdes3; /* Data for the card */
197 char *tx_buf_ptr; /* Data for us */
198 struct tx_desc *next_tx_desc;
199 } __attribute__(( aligned(32) ));
200
201 struct rx_desc {
202 __le32 rdes0, rdes1, rdes2, rdes3; /* Data for the card */
203 struct sk_buff *rx_skb_ptr; /* Data for us */
204 struct rx_desc *next_rx_desc;
205 } __attribute__(( aligned(32) ));
206
207 struct dmfe_board_info {
208 u32 chip_id; /* Chip vendor/Device ID */
209 u8 chip_revision; /* Chip revision */
210 struct DEVICE *next_dev; /* next device */
211 struct pci_dev *pdev; /* PCI device */
212 spinlock_t lock;
213
214 long ioaddr; /* I/O base address */
215 u32 cr0_data;
216 u32 cr5_data;
217 u32 cr6_data;
218 u32 cr7_data;
219 u32 cr15_data;
220
221 /* pointer for memory physical address */
222 dma_addr_t buf_pool_dma_ptr; /* Tx buffer pool memory */
223 dma_addr_t buf_pool_dma_start; /* Tx buffer pool align dword */
224 dma_addr_t desc_pool_dma_ptr; /* descriptor pool memory */
225 dma_addr_t first_tx_desc_dma;
226 dma_addr_t first_rx_desc_dma;
227
228 /* descriptor pointer */
229 unsigned char *buf_pool_ptr; /* Tx buffer pool memory */
230 unsigned char *buf_pool_start; /* Tx buffer pool align dword */
231 unsigned char *desc_pool_ptr; /* descriptor pool memory */
232 struct tx_desc *first_tx_desc;
233 struct tx_desc *tx_insert_ptr;
234 struct tx_desc *tx_remove_ptr;
235 struct rx_desc *first_rx_desc;
236 struct rx_desc *rx_insert_ptr;
237 struct rx_desc *rx_ready_ptr; /* packet come pointer */
238 unsigned long tx_packet_cnt; /* transmitted packet count */
239 unsigned long tx_queue_cnt; /* wait to send packet count */
240 unsigned long rx_avail_cnt; /* available rx descriptor count */
241 unsigned long interval_rx_cnt; /* rx packet count a callback time */
242
243 u16 HPNA_command; /* For HPNA register 16 */
244 u16 HPNA_timer; /* For HPNA remote device check */
245 u16 dbug_cnt;
246 u16 NIC_capability; /* NIC media capability */
247 u16 PHY_reg4; /* Saved Phyxcer register 4 value */
248
249 u8 HPNA_present; /* 0:none, 1:DM9801, 2:DM9802 */
250 u8 chip_type; /* Keep DM9102A chip type */
251 u8 media_mode; /* user specify media mode */
252 u8 op_mode; /* real work media mode */
253 u8 phy_addr;
254 u8 wait_reset; /* Hardware failed, need to reset */
255 u8 dm910x_chk_mode; /* Operating mode check */
256 u8 first_in_callback; /* Flag to record state */
257 u8 wol_mode; /* user WOL settings */
258 struct timer_list timer;
259
260 /* System defined statistic counter */
261 struct net_device_stats stats;
262
263 /* Driver defined statistic counter */
264 unsigned long tx_fifo_underrun;
265 unsigned long tx_loss_carrier;
266 unsigned long tx_no_carrier;
267 unsigned long tx_late_collision;
268 unsigned long tx_excessive_collision;
269 unsigned long tx_jabber_timeout;
270 unsigned long reset_count;
271 unsigned long reset_cr8;
272 unsigned long reset_fatal;
273 unsigned long reset_TXtimeout;
274
275 /* NIC SROM data */
276 unsigned char srom[128];
277 };
278
279 enum dmfe_offsets {
280 DCR0 = 0x00, DCR1 = 0x08, DCR2 = 0x10, DCR3 = 0x18, DCR4 = 0x20,
281 DCR5 = 0x28, DCR6 = 0x30, DCR7 = 0x38, DCR8 = 0x40, DCR9 = 0x48,
282 DCR10 = 0x50, DCR11 = 0x58, DCR12 = 0x60, DCR13 = 0x68, DCR14 = 0x70,
283 DCR15 = 0x78
284 };
285
286 enum dmfe_CR6_bits {
287 CR6_RXSC = 0x2, CR6_PBF = 0x8, CR6_PM = 0x40, CR6_PAM = 0x80,
288 CR6_FDM = 0x200, CR6_TXSC = 0x2000, CR6_STI = 0x100000,
289 CR6_SFT = 0x200000, CR6_RXA = 0x40000000, CR6_NO_PURGE = 0x20000000
290 };
291
292 /* Global variable declaration ----------------------------- */
293 static int __devinitdata printed_version;
294 static char version[] __devinitdata =
295 KERN_INFO DRV_NAME ": Davicom DM9xxx net driver, version "
296 DRV_VERSION " (" DRV_RELDATE ")\n";
297
298 static int dmfe_debug;
299 static unsigned char dmfe_media_mode = DMFE_AUTO;
300 static u32 dmfe_cr6_user_set;
301
302 /* For module input parameter */
303 static int debug;
304 static u32 cr6set;
305 static unsigned char mode = 8;
306 static u8 chkmode = 1;
307 static u8 HPNA_mode; /* Default: Low Power/High Speed */
308 static u8 HPNA_rx_cmd; /* Default: Disable Rx remote command */
309 static u8 HPNA_tx_cmd; /* Default: Don't issue remote command */
310 static u8 HPNA_NoiseFloor; /* Default: HPNA NoiseFloor */
311 static u8 SF_mode; /* Special Function: 1:VLAN, 2:RX Flow Control
312 4: TX pause packet */
313
314
315 /* function declaration ------------------------------------- */
316 static int dmfe_open(struct DEVICE *);
317 static int dmfe_start_xmit(struct sk_buff *, struct DEVICE *);
318 static int dmfe_stop(struct DEVICE *);
319 static struct net_device_stats * dmfe_get_stats(struct DEVICE *);
320 static void dmfe_set_filter_mode(struct DEVICE *);
321 static const struct ethtool_ops netdev_ethtool_ops;
322 static u16 read_srom_word(long ,int);
323 static irqreturn_t dmfe_interrupt(int , void *);
324 #ifdef CONFIG_NET_POLL_CONTROLLER
325 static void poll_dmfe (struct net_device *dev);
326 #endif
327 static void dmfe_descriptor_init(struct dmfe_board_info *, unsigned long);
328 static void allocate_rx_buffer(struct dmfe_board_info *);
329 static void update_cr6(u32, unsigned long);
330 static void send_filter_frame(struct DEVICE * ,int);
331 static void dm9132_id_table(struct DEVICE * ,int);
332 static u16 phy_read(unsigned long, u8, u8, u32);
333 static void phy_write(unsigned long, u8, u8, u16, u32);
334 static void phy_write_1bit(unsigned long, u32);
335 static u16 phy_read_1bit(unsigned long);
336 static u8 dmfe_sense_speed(struct dmfe_board_info *);
337 static void dmfe_process_mode(struct dmfe_board_info *);
338 static void dmfe_timer(unsigned long);
339 static inline u32 cal_CRC(unsigned char *, unsigned int, u8);
340 static void dmfe_rx_packet(struct DEVICE *, struct dmfe_board_info *);
341 static void dmfe_free_tx_pkt(struct DEVICE *, struct dmfe_board_info *);
342 static void dmfe_reuse_skb(struct dmfe_board_info *, struct sk_buff *);
343 static void dmfe_dynamic_reset(struct DEVICE *);
344 static void dmfe_free_rxbuffer(struct dmfe_board_info *);
345 static void dmfe_init_dm910x(struct DEVICE *);
346 static void dmfe_parse_srom(struct dmfe_board_info *);
347 static void dmfe_program_DM9801(struct dmfe_board_info *, int);
348 static void dmfe_program_DM9802(struct dmfe_board_info *);
349 static void dmfe_HPNA_remote_cmd_chk(struct dmfe_board_info * );
350 static void dmfe_set_phyxcer(struct dmfe_board_info *);
351
352 /* DM910X network board routine ---------------------------- */
353
354 /*
355 * Search DM910X board ,allocate space and register it
356 */
357
358 static int __devinit dmfe_init_one (struct pci_dev *pdev,
359 const struct pci_device_id *ent)
360 {
361 struct dmfe_board_info *db; /* board information structure */
362 struct net_device *dev;
363 u32 pci_pmr;
364 int i, err;
365 DECLARE_MAC_BUF(mac);
366
367 DMFE_DBUG(0, "dmfe_init_one()", 0);
368
369 if (!printed_version++)
370 printk(version);
371
372 /* Init network device */
373 dev = alloc_etherdev(sizeof(*db));
374 if (dev == NULL)
375 return -ENOMEM;
376 SET_NETDEV_DEV(dev, &pdev->dev);
377
378 if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
379 printk(KERN_WARNING DRV_NAME
380 ": 32-bit PCI DMA not available.\n");
381 err = -ENODEV;
382 goto err_out_free;
383 }
384
385 /* Enable Master/IO access, Disable memory access */
386 err = pci_enable_device(pdev);
387 if (err)
388 goto err_out_free;
389
390 if (!pci_resource_start(pdev, 0)) {
391 printk(KERN_ERR DRV_NAME ": I/O base is zero\n");
392 err = -ENODEV;
393 goto err_out_disable;
394 }
395
396 if (pci_resource_len(pdev, 0) < (CHK_IO_SIZE(pdev)) ) {
397 printk(KERN_ERR DRV_NAME ": Allocated I/O size too small\n");
398 err = -ENODEV;
399 goto err_out_disable;
400 }
401
402 #if 0 /* pci_{enable_device,set_master} sets minimum latency for us now */
403
404 /* Set Latency Timer 80h */
405 /* FIXME: setting values > 32 breaks some SiS 559x stuff.
406 Need a PCI quirk.. */
407
408 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x80);
409 #endif
410
411 if (pci_request_regions(pdev, DRV_NAME)) {
412 printk(KERN_ERR DRV_NAME ": Failed to request PCI regions\n");
413 err = -ENODEV;
414 goto err_out_disable;
415 }
416
417 /* Init system & device */
418 db = netdev_priv(dev);
419
420 /* Allocate Tx/Rx descriptor memory */
421 db->desc_pool_ptr = pci_alloc_consistent(pdev, sizeof(struct tx_desc) *
422 DESC_ALL_CNT + 0x20, &db->desc_pool_dma_ptr);
423
424 db->buf_pool_ptr = pci_alloc_consistent(pdev, TX_BUF_ALLOC *
425 TX_DESC_CNT + 4, &db->buf_pool_dma_ptr);
426
427 db->first_tx_desc = (struct tx_desc *) db->desc_pool_ptr;
428 db->first_tx_desc_dma = db->desc_pool_dma_ptr;
429 db->buf_pool_start = db->buf_pool_ptr;
430 db->buf_pool_dma_start = db->buf_pool_dma_ptr;
431
432 db->chip_id = ent->driver_data;
433 db->ioaddr = pci_resource_start(pdev, 0);
434 db->chip_revision = pdev->revision;
435 db->wol_mode = 0;
436
437 db->pdev = pdev;
438
439 dev->base_addr = db->ioaddr;
440 dev->irq = pdev->irq;
441 pci_set_drvdata(pdev, dev);
442 dev->open = &dmfe_open;
443 dev->hard_start_xmit = &dmfe_start_xmit;
444 dev->stop = &dmfe_stop;
445 dev->get_stats = &dmfe_get_stats;
446 dev->set_multicast_list = &dmfe_set_filter_mode;
447 #ifdef CONFIG_NET_POLL_CONTROLLER
448 dev->poll_controller = &poll_dmfe;
449 #endif
450 dev->ethtool_ops = &netdev_ethtool_ops;
451 netif_carrier_off(dev);
452 spin_lock_init(&db->lock);
453
454 pci_read_config_dword(pdev, 0x50, &pci_pmr);
455 pci_pmr &= 0x70000;
456 if ( (pci_pmr == 0x10000) && (db->chip_revision == 0x31) )
457 db->chip_type = 1; /* DM9102A E3 */
458 else
459 db->chip_type = 0;
460
461 /* read 64 word srom data */
462 for (i = 0; i < 64; i++)
463 ((__le16 *) db->srom)[i] =
464 cpu_to_le16(read_srom_word(db->ioaddr, i));
465
466 /* Set Node address */
467 for (i = 0; i < 6; i++)
468 dev->dev_addr[i] = db->srom[20 + i];
469
470 err = register_netdev (dev);
471 if (err)
472 goto err_out_res;
473
474 printk(KERN_INFO "%s: Davicom DM%04lx at pci%s, "
475 "%s, irq %d.\n",
476 dev->name,
477 ent->driver_data >> 16,
478 pci_name(pdev),
479 print_mac(mac, dev->dev_addr),
480 dev->irq);
481
482 pci_set_master(pdev);
483
484 return 0;
485
486 err_out_res:
487 pci_release_regions(pdev);
488 err_out_disable:
489 pci_disable_device(pdev);
490 err_out_free:
491 pci_set_drvdata(pdev, NULL);
492 free_netdev(dev);
493
494 return err;
495 }
496
497
498 static void __devexit dmfe_remove_one (struct pci_dev *pdev)
499 {
500 struct net_device *dev = pci_get_drvdata(pdev);
501 struct dmfe_board_info *db = netdev_priv(dev);
502
503 DMFE_DBUG(0, "dmfe_remove_one()", 0);
504
505 if (dev) {
506
507 unregister_netdev(dev);
508
509 pci_free_consistent(db->pdev, sizeof(struct tx_desc) *
510 DESC_ALL_CNT + 0x20, db->desc_pool_ptr,
511 db->desc_pool_dma_ptr);
512 pci_free_consistent(db->pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4,
513 db->buf_pool_ptr, db->buf_pool_dma_ptr);
514 pci_release_regions(pdev);
515 free_netdev(dev); /* free board information */
516
517 pci_set_drvdata(pdev, NULL);
518 }
519
520 DMFE_DBUG(0, "dmfe_remove_one() exit", 0);
521 }
522
523
524 /*
525 * Open the interface.
526 * The interface is opened whenever "ifconfig" actives it.
527 */
528
529 static int dmfe_open(struct DEVICE *dev)
530 {
531 int ret;
532 struct dmfe_board_info *db = netdev_priv(dev);
533
534 DMFE_DBUG(0, "dmfe_open", 0);
535
536 ret = request_irq(dev->irq, &dmfe_interrupt,
537 IRQF_SHARED, dev->name, dev);
538 if (ret)
539 return ret;
540
541 /* system variable init */
542 db->cr6_data = CR6_DEFAULT | dmfe_cr6_user_set;
543 db->tx_packet_cnt = 0;
544 db->tx_queue_cnt = 0;
545 db->rx_avail_cnt = 0;
546 db->wait_reset = 0;
547
548 db->first_in_callback = 0;
549 db->NIC_capability = 0xf; /* All capability*/
550 db->PHY_reg4 = 0x1e0;
551
552 /* CR6 operation mode decision */
553 if ( !chkmode || (db->chip_id == PCI_DM9132_ID) ||
554 (db->chip_revision >= 0x30) ) {
555 db->cr6_data |= DMFE_TXTH_256;
556 db->cr0_data = CR0_DEFAULT;
557 db->dm910x_chk_mode=4; /* Enter the normal mode */
558 } else {
559 db->cr6_data |= CR6_SFT; /* Store & Forward mode */
560 db->cr0_data = 0;
561 db->dm910x_chk_mode = 1; /* Enter the check mode */
562 }
563
564 /* Initilize DM910X board */
565 dmfe_init_dm910x(dev);
566
567 /* Active System Interface */
568 netif_wake_queue(dev);
569
570 /* set and active a timer process */
571 init_timer(&db->timer);
572 db->timer.expires = DMFE_TIMER_WUT + HZ * 2;
573 db->timer.data = (unsigned long)dev;
574 db->timer.function = &dmfe_timer;
575 add_timer(&db->timer);
576
577 return 0;
578 }
579
580
581 /* Initilize DM910X board
582 * Reset DM910X board
583 * Initilize TX/Rx descriptor chain structure
584 * Send the set-up frame
585 * Enable Tx/Rx machine
586 */
587
588 static void dmfe_init_dm910x(struct DEVICE *dev)
589 {
590 struct dmfe_board_info *db = netdev_priv(dev);
591 unsigned long ioaddr = db->ioaddr;
592
593 DMFE_DBUG(0, "dmfe_init_dm910x()", 0);
594
595 /* Reset DM910x MAC controller */
596 outl(DM910X_RESET, ioaddr + DCR0); /* RESET MAC */
597 udelay(100);
598 outl(db->cr0_data, ioaddr + DCR0);
599 udelay(5);
600
601 /* Phy addr : DM910(A)2/DM9132/9801, phy address = 1 */
602 db->phy_addr = 1;
603
604 /* Parser SROM and media mode */
605 dmfe_parse_srom(db);
606 db->media_mode = dmfe_media_mode;
607
608 /* RESET Phyxcer Chip by GPR port bit 7 */
609 outl(0x180, ioaddr + DCR12); /* Let bit 7 output port */
610 if (db->chip_id == PCI_DM9009_ID) {
611 outl(0x80, ioaddr + DCR12); /* Issue RESET signal */
612 mdelay(300); /* Delay 300 ms */
613 }
614 outl(0x0, ioaddr + DCR12); /* Clear RESET signal */
615
616 /* Process Phyxcer Media Mode */
617 if ( !(db->media_mode & 0x10) ) /* Force 1M mode */
618 dmfe_set_phyxcer(db);
619
620 /* Media Mode Process */
621 if ( !(db->media_mode & DMFE_AUTO) )
622 db->op_mode = db->media_mode; /* Force Mode */
623
624 /* Initiliaze Transmit/Receive decriptor and CR3/4 */
625 dmfe_descriptor_init(db, ioaddr);
626
627 /* Init CR6 to program DM910x operation */
628 update_cr6(db->cr6_data, ioaddr);
629
630 /* Send setup frame */
631 if (db->chip_id == PCI_DM9132_ID)
632 dm9132_id_table(dev, dev->mc_count); /* DM9132 */
633 else
634 send_filter_frame(dev, dev->mc_count); /* DM9102/DM9102A */
635
636 /* Init CR7, interrupt active bit */
637 db->cr7_data = CR7_DEFAULT;
638 outl(db->cr7_data, ioaddr + DCR7);
639
640 /* Init CR15, Tx jabber and Rx watchdog timer */
641 outl(db->cr15_data, ioaddr + DCR15);
642
643 /* Enable DM910X Tx/Rx function */
644 db->cr6_data |= CR6_RXSC | CR6_TXSC | 0x40000;
645 update_cr6(db->cr6_data, ioaddr);
646 }
647
648
649 /*
650 * Hardware start transmission.
651 * Send a packet to media from the upper layer.
652 */
653
654 static int dmfe_start_xmit(struct sk_buff *skb, struct DEVICE *dev)
655 {
656 struct dmfe_board_info *db = netdev_priv(dev);
657 struct tx_desc *txptr;
658 unsigned long flags;
659
660 DMFE_DBUG(0, "dmfe_start_xmit", 0);
661
662 /* Resource flag check */
663 netif_stop_queue(dev);
664
665 /* Too large packet check */
666 if (skb->len > MAX_PACKET_SIZE) {
667 printk(KERN_ERR DRV_NAME ": big packet = %d\n", (u16)skb->len);
668 dev_kfree_skb(skb);
669 return 0;
670 }
671
672 spin_lock_irqsave(&db->lock, flags);
673
674 /* No Tx resource check, it never happen nromally */
675 if (db->tx_queue_cnt >= TX_FREE_DESC_CNT) {
676 spin_unlock_irqrestore(&db->lock, flags);
677 printk(KERN_ERR DRV_NAME ": No Tx resource %ld\n",
678 db->tx_queue_cnt);
679 return 1;
680 }
681
682 /* Disable NIC interrupt */
683 outl(0, dev->base_addr + DCR7);
684
685 /* transmit this packet */
686 txptr = db->tx_insert_ptr;
687 skb_copy_from_linear_data(skb, txptr->tx_buf_ptr, skb->len);
688 txptr->tdes1 = cpu_to_le32(0xe1000000 | skb->len);
689
690 /* Point to next transmit free descriptor */
691 db->tx_insert_ptr = txptr->next_tx_desc;
692
693 /* Transmit Packet Process */
694 if ( (!db->tx_queue_cnt) && (db->tx_packet_cnt < TX_MAX_SEND_CNT) ) {
695 txptr->tdes0 = cpu_to_le32(0x80000000); /* Set owner bit */
696 db->tx_packet_cnt++; /* Ready to send */
697 outl(0x1, dev->base_addr + DCR1); /* Issue Tx polling */
698 dev->trans_start = jiffies; /* saved time stamp */
699 } else {
700 db->tx_queue_cnt++; /* queue TX packet */
701 outl(0x1, dev->base_addr + DCR1); /* Issue Tx polling */
702 }
703
704 /* Tx resource check */
705 if ( db->tx_queue_cnt < TX_FREE_DESC_CNT )
706 netif_wake_queue(dev);
707
708 /* Restore CR7 to enable interrupt */
709 spin_unlock_irqrestore(&db->lock, flags);
710 outl(db->cr7_data, dev->base_addr + DCR7);
711
712 /* free this SKB */
713 dev_kfree_skb(skb);
714
715 return 0;
716 }
717
718
719 /*
720 * Stop the interface.
721 * The interface is stopped when it is brought.
722 */
723
724 static int dmfe_stop(struct DEVICE *dev)
725 {
726 struct dmfe_board_info *db = netdev_priv(dev);
727 unsigned long ioaddr = dev->base_addr;
728
729 DMFE_DBUG(0, "dmfe_stop", 0);
730
731 /* disable system */
732 netif_stop_queue(dev);
733
734 /* deleted timer */
735 del_timer_sync(&db->timer);
736
737 /* Reset & stop DM910X board */
738 outl(DM910X_RESET, ioaddr + DCR0);
739 udelay(5);
740 phy_write(db->ioaddr, db->phy_addr, 0, 0x8000, db->chip_id);
741
742 /* free interrupt */
743 free_irq(dev->irq, dev);
744
745 /* free allocated rx buffer */
746 dmfe_free_rxbuffer(db);
747
748 #if 0
749 /* show statistic counter */
750 printk(DRV_NAME ": FU:%lx EC:%lx LC:%lx NC:%lx"
751 " LOC:%lx TXJT:%lx RESET:%lx RCR8:%lx FAL:%lx TT:%lx\n",
752 db->tx_fifo_underrun, db->tx_excessive_collision,
753 db->tx_late_collision, db->tx_no_carrier, db->tx_loss_carrier,
754 db->tx_jabber_timeout, db->reset_count, db->reset_cr8,
755 db->reset_fatal, db->reset_TXtimeout);
756 #endif
757
758 return 0;
759 }
760
761
762 /*
763 * DM9102 insterrupt handler
764 * receive the packet to upper layer, free the transmitted packet
765 */
766
767 static irqreturn_t dmfe_interrupt(int irq, void *dev_id)
768 {
769 struct DEVICE *dev = dev_id;
770 struct dmfe_board_info *db = netdev_priv(dev);
771 unsigned long ioaddr = dev->base_addr;
772 unsigned long flags;
773
774 DMFE_DBUG(0, "dmfe_interrupt()", 0);
775
776 spin_lock_irqsave(&db->lock, flags);
777
778 /* Got DM910X status */
779 db->cr5_data = inl(ioaddr + DCR5);
780 outl(db->cr5_data, ioaddr + DCR5);
781 if ( !(db->cr5_data & 0xc1) ) {
782 spin_unlock_irqrestore(&db->lock, flags);
783 return IRQ_HANDLED;
784 }
785
786 /* Disable all interrupt in CR7 to solve the interrupt edge problem */
787 outl(0, ioaddr + DCR7);
788
789 /* Check system status */
790 if (db->cr5_data & 0x2000) {
791 /* system bus error happen */
792 DMFE_DBUG(1, "System bus error happen. CR5=", db->cr5_data);
793 db->reset_fatal++;
794 db->wait_reset = 1; /* Need to RESET */
795 spin_unlock_irqrestore(&db->lock, flags);
796 return IRQ_HANDLED;
797 }
798
799 /* Received the coming packet */
800 if ( (db->cr5_data & 0x40) && db->rx_avail_cnt )
801 dmfe_rx_packet(dev, db);
802
803 /* reallocate rx descriptor buffer */
804 if (db->rx_avail_cnt<RX_DESC_CNT)
805 allocate_rx_buffer(db);
806
807 /* Free the transmitted descriptor */
808 if ( db->cr5_data & 0x01)
809 dmfe_free_tx_pkt(dev, db);
810
811 /* Mode Check */
812 if (db->dm910x_chk_mode & 0x2) {
813 db->dm910x_chk_mode = 0x4;
814 db->cr6_data |= 0x100;
815 update_cr6(db->cr6_data, db->ioaddr);
816 }
817
818 /* Restore CR7 to enable interrupt mask */
819 outl(db->cr7_data, ioaddr + DCR7);
820
821 spin_unlock_irqrestore(&db->lock, flags);
822 return IRQ_HANDLED;
823 }
824
825
826 #ifdef CONFIG_NET_POLL_CONTROLLER
827 /*
828 * Polling 'interrupt' - used by things like netconsole to send skbs
829 * without having to re-enable interrupts. It's not called while
830 * the interrupt routine is executing.
831 */
832
833 static void poll_dmfe (struct net_device *dev)
834 {
835 /* disable_irq here is not very nice, but with the lockless
836 interrupt handler we have no other choice. */
837 disable_irq(dev->irq);
838 dmfe_interrupt (dev->irq, dev);
839 enable_irq(dev->irq);
840 }
841 #endif
842
843 /*
844 * Free TX resource after TX complete
845 */
846
847 static void dmfe_free_tx_pkt(struct DEVICE *dev, struct dmfe_board_info * db)
848 {
849 struct tx_desc *txptr;
850 unsigned long ioaddr = dev->base_addr;
851 u32 tdes0;
852
853 txptr = db->tx_remove_ptr;
854 while(db->tx_packet_cnt) {
855 tdes0 = le32_to_cpu(txptr->tdes0);
856 /* printk(DRV_NAME ": tdes0=%x\n", tdes0); */
857 if (tdes0 & 0x80000000)
858 break;
859
860 /* A packet sent completed */
861 db->tx_packet_cnt--;
862 db->stats.tx_packets++;
863
864 /* Transmit statistic counter */
865 if ( tdes0 != 0x7fffffff ) {
866 /* printk(DRV_NAME ": tdes0=%x\n", tdes0); */
867 db->stats.collisions += (tdes0 >> 3) & 0xf;
868 db->stats.tx_bytes += le32_to_cpu(txptr->tdes1) & 0x7ff;
869 if (tdes0 & TDES0_ERR_MASK) {
870 db->stats.tx_errors++;
871
872 if (tdes0 & 0x0002) { /* UnderRun */
873 db->tx_fifo_underrun++;
874 if ( !(db->cr6_data & CR6_SFT) ) {
875 db->cr6_data = db->cr6_data | CR6_SFT;
876 update_cr6(db->cr6_data, db->ioaddr);
877 }
878 }
879 if (tdes0 & 0x0100)
880 db->tx_excessive_collision++;
881 if (tdes0 & 0x0200)
882 db->tx_late_collision++;
883 if (tdes0 & 0x0400)
884 db->tx_no_carrier++;
885 if (tdes0 & 0x0800)
886 db->tx_loss_carrier++;
887 if (tdes0 & 0x4000)
888 db->tx_jabber_timeout++;
889 }
890 }
891
892 txptr = txptr->next_tx_desc;
893 }/* End of while */
894
895 /* Update TX remove pointer to next */
896 db->tx_remove_ptr = txptr;
897
898 /* Send the Tx packet in queue */
899 if ( (db->tx_packet_cnt < TX_MAX_SEND_CNT) && db->tx_queue_cnt ) {
900 txptr->tdes0 = cpu_to_le32(0x80000000); /* Set owner bit */
901 db->tx_packet_cnt++; /* Ready to send */
902 db->tx_queue_cnt--;
903 outl(0x1, ioaddr + DCR1); /* Issue Tx polling */
904 dev->trans_start = jiffies; /* saved time stamp */
905 }
906
907 /* Resource available check */
908 if ( db->tx_queue_cnt < TX_WAKE_DESC_CNT )
909 netif_wake_queue(dev); /* Active upper layer, send again */
910 }
911
912
913 /*
914 * Calculate the CRC valude of the Rx packet
915 * flag = 1 : return the reverse CRC (for the received packet CRC)
916 * 0 : return the normal CRC (for Hash Table index)
917 */
918
919 static inline u32 cal_CRC(unsigned char * Data, unsigned int Len, u8 flag)
920 {
921 u32 crc = crc32(~0, Data, Len);
922 if (flag) crc = ~crc;
923 return crc;
924 }
925
926
927 /*
928 * Receive the come packet and pass to upper layer
929 */
930
931 static void dmfe_rx_packet(struct DEVICE *dev, struct dmfe_board_info * db)
932 {
933 struct rx_desc *rxptr;
934 struct sk_buff *skb, *newskb;
935 int rxlen;
936 u32 rdes0;
937
938 rxptr = db->rx_ready_ptr;
939
940 while(db->rx_avail_cnt) {
941 rdes0 = le32_to_cpu(rxptr->rdes0);
942 if (rdes0 & 0x80000000) /* packet owner check */
943 break;
944
945 db->rx_avail_cnt--;
946 db->interval_rx_cnt++;
947
948 pci_unmap_single(db->pdev, le32_to_cpu(rxptr->rdes2),
949 RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE);
950
951 if ( (rdes0 & 0x300) != 0x300) {
952 /* A packet without First/Last flag */
953 /* reuse this SKB */
954 DMFE_DBUG(0, "Reuse SK buffer, rdes0", rdes0);
955 dmfe_reuse_skb(db, rxptr->rx_skb_ptr);
956 } else {
957 /* A packet with First/Last flag */
958 rxlen = ( (rdes0 >> 16) & 0x3fff) - 4;
959
960 /* error summary bit check */
961 if (rdes0 & 0x8000) {
962 /* This is a error packet */
963 //printk(DRV_NAME ": rdes0: %lx\n", rdes0);
964 db->stats.rx_errors++;
965 if (rdes0 & 1)
966 db->stats.rx_fifo_errors++;
967 if (rdes0 & 2)
968 db->stats.rx_crc_errors++;
969 if (rdes0 & 0x80)
970 db->stats.rx_length_errors++;
971 }
972
973 if ( !(rdes0 & 0x8000) ||
974 ((db->cr6_data & CR6_PM) && (rxlen>6)) ) {
975 skb = rxptr->rx_skb_ptr;
976
977 /* Received Packet CRC check need or not */
978 if ( (db->dm910x_chk_mode & 1) &&
979 (cal_CRC(skb->data, rxlen, 1) !=
980 (*(u32 *) (skb->data+rxlen) ))) { /* FIXME (?) */
981 /* Found a error received packet */
982 dmfe_reuse_skb(db, rxptr->rx_skb_ptr);
983 db->dm910x_chk_mode = 3;
984 } else {
985 /* Good packet, send to upper layer */
986 /* Shorst packet used new SKB */
987 if ((rxlen < RX_COPY_SIZE) &&
988 ((newskb = dev_alloc_skb(rxlen + 2))
989 != NULL)) {
990
991 skb = newskb;
992 /* size less than COPY_SIZE, allocate a rxlen SKB */
993 skb_reserve(skb, 2); /* 16byte align */
994 skb_copy_from_linear_data(rxptr->rx_skb_ptr,
995 skb_put(skb, rxlen),
996 rxlen);
997 dmfe_reuse_skb(db, rxptr->rx_skb_ptr);
998 } else
999 skb_put(skb, rxlen);
1000
1001 skb->protocol = eth_type_trans(skb, dev);
1002 netif_rx(skb);
1003 dev->last_rx = jiffies;
1004 db->stats.rx_packets++;
1005 db->stats.rx_bytes += rxlen;
1006 }
1007 } else {
1008 /* Reuse SKB buffer when the packet is error */
1009 DMFE_DBUG(0, "Reuse SK buffer, rdes0", rdes0);
1010 dmfe_reuse_skb(db, rxptr->rx_skb_ptr);
1011 }
1012 }
1013
1014 rxptr = rxptr->next_rx_desc;
1015 }
1016
1017 db->rx_ready_ptr = rxptr;
1018 }
1019
1020
1021 /*
1022 * Get statistics from driver.
1023 */
1024
1025 static struct net_device_stats * dmfe_get_stats(struct DEVICE *dev)
1026 {
1027 struct dmfe_board_info *db = netdev_priv(dev);
1028
1029 DMFE_DBUG(0, "dmfe_get_stats", 0);
1030 return &db->stats;
1031 }
1032
1033
1034 /*
1035 * Set DM910X multicast address
1036 */
1037
1038 static void dmfe_set_filter_mode(struct DEVICE * dev)
1039 {
1040 struct dmfe_board_info *db = netdev_priv(dev);
1041 unsigned long flags;
1042
1043 DMFE_DBUG(0, "dmfe_set_filter_mode()", 0);
1044 spin_lock_irqsave(&db->lock, flags);
1045
1046 if (dev->flags & IFF_PROMISC) {
1047 DMFE_DBUG(0, "Enable PROM Mode", 0);
1048 db->cr6_data |= CR6_PM | CR6_PBF;
1049 update_cr6(db->cr6_data, db->ioaddr);
1050 spin_unlock_irqrestore(&db->lock, flags);
1051 return;
1052 }
1053
1054 if (dev->flags & IFF_ALLMULTI || dev->mc_count > DMFE_MAX_MULTICAST) {
1055 DMFE_DBUG(0, "Pass all multicast address", dev->mc_count);
1056 db->cr6_data &= ~(CR6_PM | CR6_PBF);
1057 db->cr6_data |= CR6_PAM;
1058 spin_unlock_irqrestore(&db->lock, flags);
1059 return;
1060 }
1061
1062 DMFE_DBUG(0, "Set multicast address", dev->mc_count);
1063 if (db->chip_id == PCI_DM9132_ID)
1064 dm9132_id_table(dev, dev->mc_count); /* DM9132 */
1065 else
1066 send_filter_frame(dev, dev->mc_count); /* DM9102/DM9102A */
1067 spin_unlock_irqrestore(&db->lock, flags);
1068 }
1069
1070 /*
1071 * Ethtool interace
1072 */
1073
1074 static void dmfe_ethtool_get_drvinfo(struct net_device *dev,
1075 struct ethtool_drvinfo *info)
1076 {
1077 struct dmfe_board_info *np = netdev_priv(dev);
1078
1079 strcpy(info->driver, DRV_NAME);
1080 strcpy(info->version, DRV_VERSION);
1081 if (np->pdev)
1082 strcpy(info->bus_info, pci_name(np->pdev));
1083 else
1084 sprintf(info->bus_info, "EISA 0x%lx %d",
1085 dev->base_addr, dev->irq);
1086 }
1087
1088 static int dmfe_ethtool_set_wol(struct net_device *dev,
1089 struct ethtool_wolinfo *wolinfo)
1090 {
1091 struct dmfe_board_info *db = netdev_priv(dev);
1092
1093 if (wolinfo->wolopts & (WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
1094 WAKE_ARP | WAKE_MAGICSECURE))
1095 return -EOPNOTSUPP;
1096
1097 db->wol_mode = wolinfo->wolopts;
1098 return 0;
1099 }
1100
1101 static void dmfe_ethtool_get_wol(struct net_device *dev,
1102 struct ethtool_wolinfo *wolinfo)
1103 {
1104 struct dmfe_board_info *db = netdev_priv(dev);
1105
1106 wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
1107 wolinfo->wolopts = db->wol_mode;
1108 return;
1109 }
1110
1111
1112 static const struct ethtool_ops netdev_ethtool_ops = {
1113 .get_drvinfo = dmfe_ethtool_get_drvinfo,
1114 .get_link = ethtool_op_get_link,
1115 .set_wol = dmfe_ethtool_set_wol,
1116 .get_wol = dmfe_ethtool_get_wol,
1117 };
1118
1119 /*
1120 * A periodic timer routine
1121 * Dynamic media sense, allocate Rx buffer...
1122 */
1123
1124 static void dmfe_timer(unsigned long data)
1125 {
1126 u32 tmp_cr8;
1127 unsigned char tmp_cr12;
1128 struct DEVICE *dev = (struct DEVICE *) data;
1129 struct dmfe_board_info *db = netdev_priv(dev);
1130 unsigned long flags;
1131
1132 int link_ok, link_ok_phy;
1133
1134 DMFE_DBUG(0, "dmfe_timer()", 0);
1135 spin_lock_irqsave(&db->lock, flags);
1136
1137 /* Media mode process when Link OK before enter this route */
1138 if (db->first_in_callback == 0) {
1139 db->first_in_callback = 1;
1140 if (db->chip_type && (db->chip_id==PCI_DM9102_ID)) {
1141 db->cr6_data &= ~0x40000;
1142 update_cr6(db->cr6_data, db->ioaddr);
1143 phy_write(db->ioaddr,
1144 db->phy_addr, 0, 0x1000, db->chip_id);
1145 db->cr6_data |= 0x40000;
1146 update_cr6(db->cr6_data, db->ioaddr);
1147 db->timer.expires = DMFE_TIMER_WUT + HZ * 2;
1148 add_timer(&db->timer);
1149 spin_unlock_irqrestore(&db->lock, flags);
1150 return;
1151 }
1152 }
1153
1154
1155 /* Operating Mode Check */
1156 if ( (db->dm910x_chk_mode & 0x1) &&
1157 (db->stats.rx_packets > MAX_CHECK_PACKET) )
1158 db->dm910x_chk_mode = 0x4;
1159
1160 /* Dynamic reset DM910X : system error or transmit time-out */
1161 tmp_cr8 = inl(db->ioaddr + DCR8);
1162 if ( (db->interval_rx_cnt==0) && (tmp_cr8) ) {
1163 db->reset_cr8++;
1164 db->wait_reset = 1;
1165 }
1166 db->interval_rx_cnt = 0;
1167
1168 /* TX polling kick monitor */
1169 if ( db->tx_packet_cnt &&
1170 time_after(jiffies, dev->trans_start + DMFE_TX_KICK) ) {
1171 outl(0x1, dev->base_addr + DCR1); /* Tx polling again */
1172
1173 /* TX Timeout */
1174 if ( time_after(jiffies, dev->trans_start + DMFE_TX_TIMEOUT) ) {
1175 db->reset_TXtimeout++;
1176 db->wait_reset = 1;
1177 printk(KERN_WARNING "%s: Tx timeout - resetting\n",
1178 dev->name);
1179 }
1180 }
1181
1182 if (db->wait_reset) {
1183 DMFE_DBUG(0, "Dynamic Reset device", db->tx_packet_cnt);
1184 db->reset_count++;
1185 dmfe_dynamic_reset(dev);
1186 db->first_in_callback = 0;
1187 db->timer.expires = DMFE_TIMER_WUT;
1188 add_timer(&db->timer);
1189 spin_unlock_irqrestore(&db->lock, flags);
1190 return;
1191 }
1192
1193 /* Link status check, Dynamic media type change */
1194 if (db->chip_id == PCI_DM9132_ID)
1195 tmp_cr12 = inb(db->ioaddr + DCR9 + 3); /* DM9132 */
1196 else
1197 tmp_cr12 = inb(db->ioaddr + DCR12); /* DM9102/DM9102A */
1198
1199 if ( ((db->chip_id == PCI_DM9102_ID) &&
1200 (db->chip_revision == 0x30)) ||
1201 ((db->chip_id == PCI_DM9132_ID) &&
1202 (db->chip_revision == 0x10)) ) {
1203 /* DM9102A Chip */
1204 if (tmp_cr12 & 2)
1205 link_ok = 0;
1206 else
1207 link_ok = 1;
1208 }
1209 else
1210 /*0x43 is used instead of 0x3 because bit 6 should represent
1211 link status of external PHY */
1212 link_ok = (tmp_cr12 & 0x43) ? 1 : 0;
1213
1214
1215 /* If chip reports that link is failed it could be because external
1216 PHY link status pin is not conected correctly to chip
1217 To be sure ask PHY too.
1218 */
1219
1220 /* need a dummy read because of PHY's register latch*/
1221 phy_read (db->ioaddr, db->phy_addr, 1, db->chip_id);
1222 link_ok_phy = (phy_read (db->ioaddr,
1223 db->phy_addr, 1, db->chip_id) & 0x4) ? 1 : 0;
1224
1225 if (link_ok_phy != link_ok) {
1226 DMFE_DBUG (0, "PHY and chip report different link status", 0);
1227 link_ok = link_ok | link_ok_phy;
1228 }
1229
1230 if ( !link_ok && netif_carrier_ok(dev)) {
1231 /* Link Failed */
1232 DMFE_DBUG(0, "Link Failed", tmp_cr12);
1233 netif_carrier_off(dev);
1234
1235 /* For Force 10/100M Half/Full mode: Enable Auto-Nego mode */
1236 /* AUTO or force 1M Homerun/Longrun don't need */
1237 if ( !(db->media_mode & 0x38) )
1238 phy_write(db->ioaddr, db->phy_addr,
1239 0, 0x1000, db->chip_id);
1240
1241 /* AUTO mode, if INT phyxcer link failed, select EXT device */
1242 if (db->media_mode & DMFE_AUTO) {
1243 /* 10/100M link failed, used 1M Home-Net */
1244 db->cr6_data|=0x00040000; /* bit18=1, MII */
1245 db->cr6_data&=~0x00000200; /* bit9=0, HD mode */
1246 update_cr6(db->cr6_data, db->ioaddr);
1247 }
1248 } else if (!netif_carrier_ok(dev)) {
1249
1250 DMFE_DBUG(0, "Link link OK", tmp_cr12);
1251
1252 /* Auto Sense Speed */
1253 if ( !(db->media_mode & DMFE_AUTO) || !dmfe_sense_speed(db)) {
1254 netif_carrier_on(dev);
1255 SHOW_MEDIA_TYPE(db->op_mode);
1256 }
1257
1258 dmfe_process_mode(db);
1259 }
1260
1261 /* HPNA remote command check */
1262 if (db->HPNA_command & 0xf00) {
1263 db->HPNA_timer--;
1264 if (!db->HPNA_timer)
1265 dmfe_HPNA_remote_cmd_chk(db);
1266 }
1267
1268 /* Timer active again */
1269 db->timer.expires = DMFE_TIMER_WUT;
1270 add_timer(&db->timer);
1271 spin_unlock_irqrestore(&db->lock, flags);
1272 }
1273
1274
1275 /*
1276 * Dynamic reset the DM910X board
1277 * Stop DM910X board
1278 * Free Tx/Rx allocated memory
1279 * Reset DM910X board
1280 * Re-initilize DM910X board
1281 */
1282
1283 static void dmfe_dynamic_reset(struct DEVICE *dev)
1284 {
1285 struct dmfe_board_info *db = netdev_priv(dev);
1286
1287 DMFE_DBUG(0, "dmfe_dynamic_reset()", 0);
1288
1289 /* Sopt MAC controller */
1290 db->cr6_data &= ~(CR6_RXSC | CR6_TXSC); /* Disable Tx/Rx */
1291 update_cr6(db->cr6_data, dev->base_addr);
1292 outl(0, dev->base_addr + DCR7); /* Disable Interrupt */
1293 outl(inl(dev->base_addr + DCR5), dev->base_addr + DCR5);
1294
1295 /* Disable upper layer interface */
1296 netif_stop_queue(dev);
1297
1298 /* Free Rx Allocate buffer */
1299 dmfe_free_rxbuffer(db);
1300
1301 /* system variable init */
1302 db->tx_packet_cnt = 0;
1303 db->tx_queue_cnt = 0;
1304 db->rx_avail_cnt = 0;
1305 netif_carrier_off(dev);
1306 db->wait_reset = 0;
1307
1308 /* Re-initilize DM910X board */
1309 dmfe_init_dm910x(dev);
1310
1311 /* Restart upper layer interface */
1312 netif_wake_queue(dev);
1313 }
1314
1315
1316 /*
1317 * free all allocated rx buffer
1318 */
1319
1320 static void dmfe_free_rxbuffer(struct dmfe_board_info * db)
1321 {
1322 DMFE_DBUG(0, "dmfe_free_rxbuffer()", 0);
1323
1324 /* free allocated rx buffer */
1325 while (db->rx_avail_cnt) {
1326 dev_kfree_skb(db->rx_ready_ptr->rx_skb_ptr);
1327 db->rx_ready_ptr = db->rx_ready_ptr->next_rx_desc;
1328 db->rx_avail_cnt--;
1329 }
1330 }
1331
1332
1333 /*
1334 * Reuse the SK buffer
1335 */
1336
1337 static void dmfe_reuse_skb(struct dmfe_board_info *db, struct sk_buff * skb)
1338 {
1339 struct rx_desc *rxptr = db->rx_insert_ptr;
1340
1341 if (!(rxptr->rdes0 & cpu_to_le32(0x80000000))) {
1342 rxptr->rx_skb_ptr = skb;
1343 rxptr->rdes2 = cpu_to_le32( pci_map_single(db->pdev,
1344 skb->data, RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE) );
1345 wmb();
1346 rxptr->rdes0 = cpu_to_le32(0x80000000);
1347 db->rx_avail_cnt++;
1348 db->rx_insert_ptr = rxptr->next_rx_desc;
1349 } else
1350 DMFE_DBUG(0, "SK Buffer reuse method error", db->rx_avail_cnt);
1351 }
1352
1353
1354 /*
1355 * Initialize transmit/Receive descriptor
1356 * Using Chain structure, and allocate Tx/Rx buffer
1357 */
1358
1359 static void dmfe_descriptor_init(struct dmfe_board_info *db, unsigned long ioaddr)
1360 {
1361 struct tx_desc *tmp_tx;
1362 struct rx_desc *tmp_rx;
1363 unsigned char *tmp_buf;
1364 dma_addr_t tmp_tx_dma, tmp_rx_dma;
1365 dma_addr_t tmp_buf_dma;
1366 int i;
1367
1368 DMFE_DBUG(0, "dmfe_descriptor_init()", 0);
1369
1370 /* tx descriptor start pointer */
1371 db->tx_insert_ptr = db->first_tx_desc;
1372 db->tx_remove_ptr = db->first_tx_desc;
1373 outl(db->first_tx_desc_dma, ioaddr + DCR4); /* TX DESC address */
1374
1375 /* rx descriptor start pointer */
1376 db->first_rx_desc = (void *)db->first_tx_desc +
1377 sizeof(struct tx_desc) * TX_DESC_CNT;
1378
1379 db->first_rx_desc_dma = db->first_tx_desc_dma +
1380 sizeof(struct tx_desc) * TX_DESC_CNT;
1381 db->rx_insert_ptr = db->first_rx_desc;
1382 db->rx_ready_ptr = db->first_rx_desc;
1383 outl(db->first_rx_desc_dma, ioaddr + DCR3); /* RX DESC address */
1384
1385 /* Init Transmit chain */
1386 tmp_buf = db->buf_pool_start;
1387 tmp_buf_dma = db->buf_pool_dma_start;
1388 tmp_tx_dma = db->first_tx_desc_dma;
1389 for (tmp_tx = db->first_tx_desc, i = 0; i < TX_DESC_CNT; i++, tmp_tx++) {
1390 tmp_tx->tx_buf_ptr = tmp_buf;
1391 tmp_tx->tdes0 = cpu_to_le32(0);
1392 tmp_tx->tdes1 = cpu_to_le32(0x81000000); /* IC, chain */
1393 tmp_tx->tdes2 = cpu_to_le32(tmp_buf_dma);
1394 tmp_tx_dma += sizeof(struct tx_desc);
1395 tmp_tx->tdes3 = cpu_to_le32(tmp_tx_dma);
1396 tmp_tx->next_tx_desc = tmp_tx + 1;
1397 tmp_buf = tmp_buf + TX_BUF_ALLOC;
1398 tmp_buf_dma = tmp_buf_dma + TX_BUF_ALLOC;
1399 }
1400 (--tmp_tx)->tdes3 = cpu_to_le32(db->first_tx_desc_dma);
1401 tmp_tx->next_tx_desc = db->first_tx_desc;
1402
1403 /* Init Receive descriptor chain */
1404 tmp_rx_dma=db->first_rx_desc_dma;
1405 for (tmp_rx = db->first_rx_desc, i = 0; i < RX_DESC_CNT; i++, tmp_rx++) {
1406 tmp_rx->rdes0 = cpu_to_le32(0);
1407 tmp_rx->rdes1 = cpu_to_le32(0x01000600);
1408 tmp_rx_dma += sizeof(struct rx_desc);
1409 tmp_rx->rdes3 = cpu_to_le32(tmp_rx_dma);
1410 tmp_rx->next_rx_desc = tmp_rx + 1;
1411 }
1412 (--tmp_rx)->rdes3 = cpu_to_le32(db->first_rx_desc_dma);
1413 tmp_rx->next_rx_desc = db->first_rx_desc;
1414
1415 /* pre-allocate Rx buffer */
1416 allocate_rx_buffer(db);
1417 }
1418
1419
1420 /*
1421 * Update CR6 value
1422 * Firstly stop DM910X , then written value and start
1423 */
1424
1425 static void update_cr6(u32 cr6_data, unsigned long ioaddr)
1426 {
1427 u32 cr6_tmp;
1428
1429 cr6_tmp = cr6_data & ~0x2002; /* stop Tx/Rx */
1430 outl(cr6_tmp, ioaddr + DCR6);
1431 udelay(5);
1432 outl(cr6_data, ioaddr + DCR6);
1433 udelay(5);
1434 }
1435
1436
1437 /*
1438 * Send a setup frame for DM9132
1439 * This setup frame initilize DM910X address filter mode
1440 */
1441
1442 static void dm9132_id_table(struct DEVICE *dev, int mc_cnt)
1443 {
1444 struct dev_mc_list *mcptr;
1445 u16 * addrptr;
1446 unsigned long ioaddr = dev->base_addr+0xc0; /* ID Table */
1447 u32 hash_val;
1448 u16 i, hash_table[4];
1449
1450 DMFE_DBUG(0, "dm9132_id_table()", 0);
1451
1452 /* Node address */
1453 addrptr = (u16 *) dev->dev_addr;
1454 outw(addrptr[0], ioaddr);
1455 ioaddr += 4;
1456 outw(addrptr[1], ioaddr);
1457 ioaddr += 4;
1458 outw(addrptr[2], ioaddr);
1459 ioaddr += 4;
1460
1461 /* Clear Hash Table */
1462 for (i = 0; i < 4; i++)
1463 hash_table[i] = 0x0;
1464
1465 /* broadcast address */
1466 hash_table[3] = 0x8000;
1467
1468 /* the multicast address in Hash Table : 64 bits */
1469 for (mcptr = dev->mc_list, i = 0; i < mc_cnt; i++, mcptr = mcptr->next) {
1470 hash_val = cal_CRC( (char *) mcptr->dmi_addr, 6, 0) & 0x3f;
1471 hash_table[hash_val / 16] |= (u16) 1 << (hash_val % 16);
1472 }
1473
1474 /* Write the hash table to MAC MD table */
1475 for (i = 0; i < 4; i++, ioaddr += 4)
1476 outw(hash_table[i], ioaddr);
1477 }
1478
1479
1480 /*
1481 * Send a setup frame for DM9102/DM9102A
1482 * This setup frame initilize DM910X address filter mode
1483 */
1484
1485 static void send_filter_frame(struct DEVICE *dev, int mc_cnt)
1486 {
1487 struct dmfe_board_info *db = netdev_priv(dev);
1488 struct dev_mc_list *mcptr;
1489 struct tx_desc *txptr;
1490 u16 * addrptr;
1491 u32 * suptr;
1492 int i;
1493
1494 DMFE_DBUG(0, "send_filter_frame()", 0);
1495
1496 txptr = db->tx_insert_ptr;
1497 suptr = (u32 *) txptr->tx_buf_ptr;
1498
1499 /* Node address */
1500 addrptr = (u16 *) dev->dev_addr;
1501 *suptr++ = addrptr[0];
1502 *suptr++ = addrptr[1];
1503 *suptr++ = addrptr[2];
1504
1505 /* broadcast address */
1506 *suptr++ = 0xffff;
1507 *suptr++ = 0xffff;
1508 *suptr++ = 0xffff;
1509
1510 /* fit the multicast address */
1511 for (mcptr = dev->mc_list, i = 0; i < mc_cnt; i++, mcptr = mcptr->next) {
1512 addrptr = (u16 *) mcptr->dmi_addr;
1513 *suptr++ = addrptr[0];
1514 *suptr++ = addrptr[1];
1515 *suptr++ = addrptr[2];
1516 }
1517
1518 for (; i<14; i++) {
1519 *suptr++ = 0xffff;
1520 *suptr++ = 0xffff;
1521 *suptr++ = 0xffff;
1522 }
1523
1524 /* prepare the setup frame */
1525 db->tx_insert_ptr = txptr->next_tx_desc;
1526 txptr->tdes1 = cpu_to_le32(0x890000c0);
1527
1528 /* Resource Check and Send the setup packet */
1529 if (!db->tx_packet_cnt) {
1530 /* Resource Empty */
1531 db->tx_packet_cnt++;
1532 txptr->tdes0 = cpu_to_le32(0x80000000);
1533 update_cr6(db->cr6_data | 0x2000, dev->base_addr);
1534 outl(0x1, dev->base_addr + DCR1); /* Issue Tx polling */
1535 update_cr6(db->cr6_data, dev->base_addr);
1536 dev->trans_start = jiffies;
1537 } else
1538 db->tx_queue_cnt++; /* Put in TX queue */
1539 }
1540
1541
1542 /*
1543 * Allocate rx buffer,
1544 * As possible as allocate maxiumn Rx buffer
1545 */
1546
1547 static void allocate_rx_buffer(struct dmfe_board_info *db)
1548 {
1549 struct rx_desc *rxptr;
1550 struct sk_buff *skb;
1551
1552 rxptr = db->rx_insert_ptr;
1553
1554 while(db->rx_avail_cnt < RX_DESC_CNT) {
1555 if ( ( skb = dev_alloc_skb(RX_ALLOC_SIZE) ) == NULL )
1556 break;
1557 rxptr->rx_skb_ptr = skb; /* FIXME (?) */
1558 rxptr->rdes2 = cpu_to_le32( pci_map_single(db->pdev, skb->data,
1559 RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE) );
1560 wmb();
1561 rxptr->rdes0 = cpu_to_le32(0x80000000);
1562 rxptr = rxptr->next_rx_desc;
1563 db->rx_avail_cnt++;
1564 }
1565
1566 db->rx_insert_ptr = rxptr;
1567 }
1568
1569
1570 /*
1571 * Read one word data from the serial ROM
1572 */
1573
1574 static u16 read_srom_word(long ioaddr, int offset)
1575 {
1576 int i;
1577 u16 srom_data = 0;
1578 long cr9_ioaddr = ioaddr + DCR9;
1579
1580 outl(CR9_SROM_READ, cr9_ioaddr);
1581 outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
1582
1583 /* Send the Read Command 110b */
1584 SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr);
1585 SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr);
1586 SROM_CLK_WRITE(SROM_DATA_0, cr9_ioaddr);
1587
1588 /* Send the offset */
1589 for (i = 5; i >= 0; i--) {
1590 srom_data = (offset & (1 << i)) ? SROM_DATA_1 : SROM_DATA_0;
1591 SROM_CLK_WRITE(srom_data, cr9_ioaddr);
1592 }
1593
1594 outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
1595
1596 for (i = 16; i > 0; i--) {
1597 outl(CR9_SROM_READ | CR9_SRCS | CR9_SRCLK, cr9_ioaddr);
1598 udelay(5);
1599 srom_data = (srom_data << 1) |
1600 ((inl(cr9_ioaddr) & CR9_CRDOUT) ? 1 : 0);
1601 outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
1602 udelay(5);
1603 }
1604
1605 outl(CR9_SROM_READ, cr9_ioaddr);
1606 return srom_data;
1607 }
1608
1609
1610 /*
1611 * Auto sense the media mode
1612 */
1613
1614 static u8 dmfe_sense_speed(struct dmfe_board_info * db)
1615 {
1616 u8 ErrFlag = 0;
1617 u16 phy_mode;
1618
1619 /* CR6 bit18=0, select 10/100M */
1620 update_cr6( (db->cr6_data & ~0x40000), db->ioaddr);
1621
1622 phy_mode = phy_read(db->ioaddr, db->phy_addr, 1, db->chip_id);
1623 phy_mode = phy_read(db->ioaddr, db->phy_addr, 1, db->chip_id);
1624
1625 if ( (phy_mode & 0x24) == 0x24 ) {
1626 if (db->chip_id == PCI_DM9132_ID) /* DM9132 */
1627 phy_mode = phy_read(db->ioaddr,
1628 db->phy_addr, 7, db->chip_id) & 0xf000;
1629 else /* DM9102/DM9102A */
1630 phy_mode = phy_read(db->ioaddr,
1631 db->phy_addr, 17, db->chip_id) & 0xf000;
1632 /* printk(DRV_NAME ": Phy_mode %x ",phy_mode); */
1633 switch (phy_mode) {
1634 case 0x1000: db->op_mode = DMFE_10MHF; break;
1635 case 0x2000: db->op_mode = DMFE_10MFD; break;
1636 case 0x4000: db->op_mode = DMFE_100MHF; break;
1637 case 0x8000: db->op_mode = DMFE_100MFD; break;
1638 default: db->op_mode = DMFE_10MHF;
1639 ErrFlag = 1;
1640 break;
1641 }
1642 } else {
1643 db->op_mode = DMFE_10MHF;
1644 DMFE_DBUG(0, "Link Failed :", phy_mode);
1645 ErrFlag = 1;
1646 }
1647
1648 return ErrFlag;
1649 }
1650
1651
1652 /*
1653 * Set 10/100 phyxcer capability
1654 * AUTO mode : phyxcer register4 is NIC capability
1655 * Force mode: phyxcer register4 is the force media
1656 */
1657
1658 static void dmfe_set_phyxcer(struct dmfe_board_info *db)
1659 {
1660 u16 phy_reg;
1661
1662 /* Select 10/100M phyxcer */
1663 db->cr6_data &= ~0x40000;
1664 update_cr6(db->cr6_data, db->ioaddr);
1665
1666 /* DM9009 Chip: Phyxcer reg18 bit12=0 */
1667 if (db->chip_id == PCI_DM9009_ID) {
1668 phy_reg = phy_read(db->ioaddr,
1669 db->phy_addr, 18, db->chip_id) & ~0x1000;
1670
1671 phy_write(db->ioaddr,
1672 db->phy_addr, 18, phy_reg, db->chip_id);
1673 }
1674
1675 /* Phyxcer capability setting */
1676 phy_reg = phy_read(db->ioaddr, db->phy_addr, 4, db->chip_id) & ~0x01e0;
1677
1678 if (db->media_mode & DMFE_AUTO) {
1679 /* AUTO Mode */
1680 phy_reg |= db->PHY_reg4;
1681 } else {
1682 /* Force Mode */
1683 switch(db->media_mode) {
1684 case DMFE_10MHF: phy_reg |= 0x20; break;
1685 case DMFE_10MFD: phy_reg |= 0x40; break;
1686 case DMFE_100MHF: phy_reg |= 0x80; break;
1687 case DMFE_100MFD: phy_reg |= 0x100; break;
1688 }
1689 if (db->chip_id == PCI_DM9009_ID) phy_reg &= 0x61;
1690 }
1691
1692 /* Write new capability to Phyxcer Reg4 */
1693 if ( !(phy_reg & 0x01e0)) {
1694 phy_reg|=db->PHY_reg4;
1695 db->media_mode|=DMFE_AUTO;
1696 }
1697 phy_write(db->ioaddr, db->phy_addr, 4, phy_reg, db->chip_id);
1698
1699 /* Restart Auto-Negotiation */
1700 if ( db->chip_type && (db->chip_id == PCI_DM9102_ID) )
1701 phy_write(db->ioaddr, db->phy_addr, 0, 0x1800, db->chip_id);
1702 if ( !db->chip_type )
1703 phy_write(db->ioaddr, db->phy_addr, 0, 0x1200, db->chip_id);
1704 }
1705
1706
1707 /*
1708 * Process op-mode
1709 * AUTO mode : PHY controller in Auto-negotiation Mode
1710 * Force mode: PHY controller in force mode with HUB
1711 * N-way force capability with SWITCH
1712 */
1713
1714 static void dmfe_process_mode(struct dmfe_board_info *db)
1715 {
1716 u16 phy_reg;
1717
1718 /* Full Duplex Mode Check */
1719 if (db->op_mode & 0x4)
1720 db->cr6_data |= CR6_FDM; /* Set Full Duplex Bit */
1721 else
1722 db->cr6_data &= ~CR6_FDM; /* Clear Full Duplex Bit */
1723
1724 /* Transciver Selection */
1725 if (db->op_mode & 0x10) /* 1M HomePNA */
1726 db->cr6_data |= 0x40000;/* External MII select */
1727 else
1728 db->cr6_data &= ~0x40000;/* Internal 10/100 transciver */
1729
1730 update_cr6(db->cr6_data, db->ioaddr);
1731
1732 /* 10/100M phyxcer force mode need */
1733 if ( !(db->media_mode & 0x18)) {
1734 /* Forece Mode */
1735 phy_reg = phy_read(db->ioaddr, db->phy_addr, 6, db->chip_id);
1736 if ( !(phy_reg & 0x1) ) {
1737 /* parter without N-Way capability */
1738 phy_reg = 0x0;
1739 switch(db->op_mode) {
1740 case DMFE_10MHF: phy_reg = 0x0; break;
1741 case DMFE_10MFD: phy_reg = 0x100; break;
1742 case DMFE_100MHF: phy_reg = 0x2000; break;
1743 case DMFE_100MFD: phy_reg = 0x2100; break;
1744 }
1745 phy_write(db->ioaddr,
1746 db->phy_addr, 0, phy_reg, db->chip_id);
1747 if ( db->chip_type && (db->chip_id == PCI_DM9102_ID) )
1748 mdelay(20);
1749 phy_write(db->ioaddr,
1750 db->phy_addr, 0, phy_reg, db->chip_id);
1751 }
1752 }
1753 }
1754
1755
1756 /*
1757 * Write a word to Phy register
1758 */
1759
1760 static void phy_write(unsigned long iobase, u8 phy_addr, u8 offset,
1761 u16 phy_data, u32 chip_id)
1762 {
1763 u16 i;
1764 unsigned long ioaddr;
1765
1766 if (chip_id == PCI_DM9132_ID) {
1767 ioaddr = iobase + 0x80 + offset * 4;
1768 outw(phy_data, ioaddr);
1769 } else {
1770 /* DM9102/DM9102A Chip */
1771 ioaddr = iobase + DCR9;
1772
1773 /* Send 33 synchronization clock to Phy controller */
1774 for (i = 0; i < 35; i++)
1775 phy_write_1bit(ioaddr, PHY_DATA_1);
1776
1777 /* Send start command(01) to Phy */
1778 phy_write_1bit(ioaddr, PHY_DATA_0);
1779 phy_write_1bit(ioaddr, PHY_DATA_1);
1780
1781 /* Send write command(01) to Phy */
1782 phy_write_1bit(ioaddr, PHY_DATA_0);
1783 phy_write_1bit(ioaddr, PHY_DATA_1);
1784
1785 /* Send Phy address */
1786 for (i = 0x10; i > 0; i = i >> 1)
1787 phy_write_1bit(ioaddr,
1788 phy_addr & i ? PHY_DATA_1 : PHY_DATA_0);
1789
1790 /* Send register address */
1791 for (i = 0x10; i > 0; i = i >> 1)
1792 phy_write_1bit(ioaddr,
1793 offset & i ? PHY_DATA_1 : PHY_DATA_0);
1794
1795 /* written trasnition */
1796 phy_write_1bit(ioaddr, PHY_DATA_1);
1797 phy_write_1bit(ioaddr, PHY_DATA_0);
1798
1799 /* Write a word data to PHY controller */
1800 for ( i = 0x8000; i > 0; i >>= 1)
1801 phy_write_1bit(ioaddr,
1802 phy_data & i ? PHY_DATA_1 : PHY_DATA_0);
1803 }
1804 }
1805
1806
1807 /*
1808 * Read a word data from phy register
1809 */
1810
1811 static u16 phy_read(unsigned long iobase, u8 phy_addr, u8 offset, u32 chip_id)
1812 {
1813 int i;
1814 u16 phy_data;
1815 unsigned long ioaddr;
1816
1817 if (chip_id == PCI_DM9132_ID) {
1818 /* DM9132 Chip */
1819 ioaddr = iobase + 0x80 + offset * 4;
1820 phy_data = inw(ioaddr);
1821 } else {
1822 /* DM9102/DM9102A Chip */
1823 ioaddr = iobase + DCR9;
1824
1825 /* Send 33 synchronization clock to Phy controller */
1826 for (i = 0; i < 35; i++)
1827 phy_write_1bit(ioaddr, PHY_DATA_1);
1828
1829 /* Send start command(01) to Phy */
1830 phy_write_1bit(ioaddr, PHY_DATA_0);
1831 phy_write_1bit(ioaddr, PHY_DATA_1);
1832
1833 /* Send read command(10) to Phy */
1834 phy_write_1bit(ioaddr, PHY_DATA_1);
1835 phy_write_1bit(ioaddr, PHY_DATA_0);
1836
1837 /* Send Phy address */
1838 for (i = 0x10; i > 0; i = i >> 1)
1839 phy_write_1bit(ioaddr,
1840 phy_addr & i ? PHY_DATA_1 : PHY_DATA_0);
1841
1842 /* Send register address */
1843 for (i = 0x10; i > 0; i = i >> 1)
1844 phy_write_1bit(ioaddr,
1845 offset & i ? PHY_DATA_1 : PHY_DATA_0);
1846
1847 /* Skip transition state */
1848 phy_read_1bit(ioaddr);
1849
1850 /* read 16bit data */
1851 for (phy_data = 0, i = 0; i < 16; i++) {
1852 phy_data <<= 1;
1853 phy_data |= phy_read_1bit(ioaddr);
1854 }
1855 }
1856
1857 return phy_data;
1858 }
1859
1860
1861 /*
1862 * Write one bit data to Phy Controller
1863 */
1864
1865 static void phy_write_1bit(unsigned long ioaddr, u32 phy_data)
1866 {
1867 outl(phy_data, ioaddr); /* MII Clock Low */
1868 udelay(1);
1869 outl(phy_data | MDCLKH, ioaddr); /* MII Clock High */
1870 udelay(1);
1871 outl(phy_data, ioaddr); /* MII Clock Low */
1872 udelay(1);
1873 }
1874
1875
1876 /*
1877 * Read one bit phy data from PHY controller
1878 */
1879
1880 static u16 phy_read_1bit(unsigned long ioaddr)
1881 {
1882 u16 phy_data;
1883
1884 outl(0x50000, ioaddr);
1885 udelay(1);
1886 phy_data = ( inl(ioaddr) >> 19 ) & 0x1;
1887 outl(0x40000, ioaddr);
1888 udelay(1);
1889
1890 return phy_data;
1891 }
1892
1893
1894 /*
1895 * Parser SROM and media mode
1896 */
1897
1898 static void dmfe_parse_srom(struct dmfe_board_info * db)
1899 {
1900 char * srom = db->srom;
1901 int dmfe_mode, tmp_reg;
1902
1903 DMFE_DBUG(0, "dmfe_parse_srom() ", 0);
1904
1905 /* Init CR15 */
1906 db->cr15_data = CR15_DEFAULT;
1907
1908 /* Check SROM Version */
1909 if ( ( (int) srom[18] & 0xff) == SROM_V41_CODE) {
1910 /* SROM V4.01 */
1911 /* Get NIC support media mode */
1912 db->NIC_capability = le16_to_cpup((__le16 *)srom + 34/2);
1913 db->PHY_reg4 = 0;
1914 for (tmp_reg = 1; tmp_reg < 0x10; tmp_reg <<= 1) {
1915 switch( db->NIC_capability & tmp_reg ) {
1916 case 0x1: db->PHY_reg4 |= 0x0020; break;
1917 case 0x2: db->PHY_reg4 |= 0x0040; break;
1918 case 0x4: db->PHY_reg4 |= 0x0080; break;
1919 case 0x8: db->PHY_reg4 |= 0x0100; break;
1920 }
1921 }
1922
1923 /* Media Mode Force or not check */
1924 dmfe_mode = le32_to_cpup((__le32 *)srom + 34/4) &
1925 le32_to_cpup((__le32 *)srom + 36/4);
1926 switch(dmfe_mode) {
1927 case 0x4: dmfe_media_mode = DMFE_100MHF; break; /* 100MHF */
1928 case 0x2: dmfe_media_mode = DMFE_10MFD; break; /* 10MFD */
1929 case 0x8: dmfe_media_mode = DMFE_100MFD; break; /* 100MFD */
1930 case 0x100:
1931 case 0x200: dmfe_media_mode = DMFE_1M_HPNA; break;/* HomePNA */
1932 }
1933
1934 /* Special Function setting */
1935 /* VLAN function */
1936 if ( (SF_mode & 0x1) || (srom[43] & 0x80) )
1937 db->cr15_data |= 0x40;
1938
1939 /* Flow Control */
1940 if ( (SF_mode & 0x2) || (srom[40] & 0x1) )
1941 db->cr15_data |= 0x400;
1942
1943 /* TX pause packet */
1944 if ( (SF_mode & 0x4) || (srom[40] & 0xe) )
1945 db->cr15_data |= 0x9800;
1946 }
1947
1948 /* Parse HPNA parameter */
1949 db->HPNA_command = 1;
1950
1951 /* Accept remote command or not */
1952 if (HPNA_rx_cmd == 0)
1953 db->HPNA_command |= 0x8000;
1954
1955 /* Issue remote command & operation mode */
1956 if (HPNA_tx_cmd == 1)
1957 switch(HPNA_mode) { /* Issue Remote Command */
1958 case 0: db->HPNA_command |= 0x0904; break;
1959 case 1: db->HPNA_command |= 0x0a00; break;
1960 case 2: db->HPNA_command |= 0x0506; break;
1961 case 3: db->HPNA_command |= 0x0602; break;
1962 }
1963 else
1964 switch(HPNA_mode) { /* Don't Issue */
1965 case 0: db->HPNA_command |= 0x0004; break;
1966 case 1: db->HPNA_command |= 0x0000; break;
1967 case 2: db->HPNA_command |= 0x0006; break;
1968 case 3: db->HPNA_command |= 0x0002; break;
1969 }
1970
1971 /* Check DM9801 or DM9802 present or not */
1972 db->HPNA_present = 0;
1973 update_cr6(db->cr6_data|0x40000, db->ioaddr);
1974 tmp_reg = phy_read(db->ioaddr, db->phy_addr, 3, db->chip_id);
1975 if ( ( tmp_reg & 0xfff0 ) == 0xb900 ) {
1976 /* DM9801 or DM9802 present */
1977 db->HPNA_timer = 8;
1978 if ( phy_read(db->ioaddr, db->phy_addr, 31, db->chip_id) == 0x4404) {
1979 /* DM9801 HomeRun */
1980 db->HPNA_present = 1;
1981 dmfe_program_DM9801(db, tmp_reg);
1982 } else {
1983 /* DM9802 LongRun */
1984 db->HPNA_present = 2;
1985 dmfe_program_DM9802(db);
1986 }
1987 }
1988
1989 }
1990
1991
1992 /*
1993 * Init HomeRun DM9801
1994 */
1995
1996 static void dmfe_program_DM9801(struct dmfe_board_info * db, int HPNA_rev)
1997 {
1998 uint reg17, reg25;
1999
2000 if ( !HPNA_NoiseFloor ) HPNA_NoiseFloor = DM9801_NOISE_FLOOR;
2001 switch(HPNA_rev) {
2002 case 0xb900: /* DM9801 E3 */
2003 db->HPNA_command |= 0x1000;
2004 reg25 = phy_read(db->ioaddr, db->phy_addr, 24, db->chip_id);
2005 reg25 = ( (reg25 + HPNA_NoiseFloor) & 0xff) | 0xf000;
2006 reg17 = phy_read(db->ioaddr, db->phy_addr, 17, db->chip_id);
2007 break;
2008 case 0xb901: /* DM9801 E4 */
2009 reg25 = phy_read(db->ioaddr, db->phy_addr, 25, db->chip_id);
2010 reg25 = (reg25 & 0xff00) + HPNA_NoiseFloor;
2011 reg17 = phy_read(db->ioaddr, db->phy_addr, 17, db->chip_id);
2012 reg17 = (reg17 & 0xfff0) + HPNA_NoiseFloor + 3;
2013 break;
2014 case 0xb902: /* DM9801 E5 */
2015 case 0xb903: /* DM9801 E6 */
2016 default:
2017 db->HPNA_command |= 0x1000;
2018 reg25 = phy_read(db->ioaddr, db->phy_addr, 25, db->chip_id);
2019 reg25 = (reg25 & 0xff00) + HPNA_NoiseFloor - 5;
2020 reg17 = phy_read(db->ioaddr, db->phy_addr, 17, db->chip_id);
2021 reg17 = (reg17 & 0xfff0) + HPNA_NoiseFloor;
2022 break;
2023 }
2024 phy_write(db->ioaddr, db->phy_addr, 16, db->HPNA_command, db->chip_id);
2025 phy_write(db->ioaddr, db->phy_addr, 17, reg17, db->chip_id);
2026 phy_write(db->ioaddr, db->phy_addr, 25, reg25, db->chip_id);
2027 }
2028
2029
2030 /*
2031 * Init HomeRun DM9802
2032 */
2033
2034 static void dmfe_program_DM9802(struct dmfe_board_info * db)
2035 {
2036 uint phy_reg;
2037
2038 if ( !HPNA_NoiseFloor ) HPNA_NoiseFloor = DM9802_NOISE_FLOOR;
2039 phy_write(db->ioaddr, db->phy_addr, 16, db->HPNA_command, db->chip_id);
2040 phy_reg = phy_read(db->ioaddr, db->phy_addr, 25, db->chip_id);
2041 phy_reg = ( phy_reg & 0xff00) + HPNA_NoiseFloor;
2042 phy_write(db->ioaddr, db->phy_addr, 25, phy_reg, db->chip_id);
2043 }
2044
2045
2046 /*
2047 * Check remote HPNA power and speed status. If not correct,
2048 * issue command again.
2049 */
2050
2051 static void dmfe_HPNA_remote_cmd_chk(struct dmfe_board_info * db)
2052 {
2053 uint phy_reg;
2054
2055 /* Got remote device status */
2056 phy_reg = phy_read(db->ioaddr, db->phy_addr, 17, db->chip_id) & 0x60;
2057 switch(phy_reg) {
2058 case 0x00: phy_reg = 0x0a00;break; /* LP/LS */
2059 case 0x20: phy_reg = 0x0900;break; /* LP/HS */
2060 case 0x40: phy_reg = 0x0600;break; /* HP/LS */
2061 case 0x60: phy_reg = 0x0500;break; /* HP/HS */
2062 }
2063
2064 /* Check remote device status match our setting ot not */
2065 if ( phy_reg != (db->HPNA_command & 0x0f00) ) {
2066 phy_write(db->ioaddr, db->phy_addr, 16, db->HPNA_command,
2067 db->chip_id);
2068 db->HPNA_timer=8;
2069 } else
2070 db->HPNA_timer=600; /* Match, every 10 minutes, check */
2071 }
2072
2073
2074
2075 static struct pci_device_id dmfe_pci_tbl[] = {
2076 { 0x1282, 0x9132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_DM9132_ID },
2077 { 0x1282, 0x9102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_DM9102_ID },
2078 { 0x1282, 0x9100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_DM9100_ID },
2079 { 0x1282, 0x9009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_DM9009_ID },
2080 { 0, }
2081 };
2082 MODULE_DEVICE_TABLE(pci, dmfe_pci_tbl);
2083
2084
2085 #ifdef CONFIG_PM
2086 static int dmfe_suspend(struct pci_dev *pci_dev, pm_message_t state)
2087 {
2088 struct net_device *dev = pci_get_drvdata(pci_dev);
2089 struct dmfe_board_info *db = netdev_priv(dev);
2090 u32 tmp;
2091
2092 /* Disable upper layer interface */
2093 netif_device_detach(dev);
2094
2095 /* Disable Tx/Rx */
2096 db->cr6_data &= ~(CR6_RXSC | CR6_TXSC);
2097 update_cr6(db->cr6_data, dev->base_addr);
2098
2099 /* Disable Interrupt */
2100 outl(0, dev->base_addr + DCR7);
2101 outl(inl (dev->base_addr + DCR5), dev->base_addr + DCR5);
2102
2103 /* Fre RX buffers */
2104 dmfe_free_rxbuffer(db);
2105
2106 /* Enable WOL */
2107 pci_read_config_dword(pci_dev, 0x40, &tmp);
2108 tmp &= ~(DMFE_WOL_LINKCHANGE|DMFE_WOL_MAGICPACKET);
2109
2110 if (db->wol_mode & WAKE_PHY)
2111 tmp |= DMFE_WOL_LINKCHANGE;
2112 if (db->wol_mode & WAKE_MAGIC)
2113 tmp |= DMFE_WOL_MAGICPACKET;
2114
2115 pci_write_config_dword(pci_dev, 0x40, tmp);
2116
2117 pci_enable_wake(pci_dev, PCI_D3hot, 1);
2118 pci_enable_wake(pci_dev, PCI_D3cold, 1);
2119
2120 /* Power down device*/
2121 pci_set_power_state(pci_dev, pci_choose_state (pci_dev,state));
2122 pci_save_state(pci_dev);
2123
2124 return 0;
2125 }
2126
2127 static int dmfe_resume(struct pci_dev *pci_dev)
2128 {
2129 struct net_device *dev = pci_get_drvdata(pci_dev);
2130 u32 tmp;
2131
2132 pci_restore_state(pci_dev);
2133 pci_set_power_state(pci_dev, PCI_D0);
2134
2135 /* Re-initilize DM910X board */
2136 dmfe_init_dm910x(dev);
2137
2138 /* Disable WOL */
2139 pci_read_config_dword(pci_dev, 0x40, &tmp);
2140
2141 tmp &= ~(DMFE_WOL_LINKCHANGE | DMFE_WOL_MAGICPACKET);
2142 pci_write_config_dword(pci_dev, 0x40, tmp);
2143
2144 pci_enable_wake(pci_dev, PCI_D3hot, 0);
2145 pci_enable_wake(pci_dev, PCI_D3cold, 0);
2146
2147 /* Restart upper layer interface */
2148 netif_device_attach(dev);
2149
2150 return 0;
2151 }
2152 #else
2153 #define dmfe_suspend NULL
2154 #define dmfe_resume NULL
2155 #endif
2156
2157 static struct pci_driver dmfe_driver = {
2158 .name = "dmfe",
2159 .id_table = dmfe_pci_tbl,
2160 .probe = dmfe_init_one,
2161 .remove = __devexit_p(dmfe_remove_one),
2162 .suspend = dmfe_suspend,
2163 .resume = dmfe_resume
2164 };
2165
2166 MODULE_AUTHOR("Sten Wang, sten_wang@davicom.com.tw");
2167 MODULE_DESCRIPTION("Davicom DM910X fast ethernet driver");
2168 MODULE_LICENSE("GPL");
2169 MODULE_VERSION(DRV_VERSION);
2170
2171 module_param(debug, int, 0);
2172 module_param(mode, byte, 0);
2173 module_param(cr6set, int, 0);
2174 module_param(chkmode, byte, 0);
2175 module_param(HPNA_mode, byte, 0);
2176 module_param(HPNA_rx_cmd, byte, 0);
2177 module_param(HPNA_tx_cmd, byte, 0);
2178 module_param(HPNA_NoiseFloor, byte, 0);
2179 module_param(SF_mode, byte, 0);
2180 MODULE_PARM_DESC(debug, "Davicom DM9xxx enable debugging (0-1)");
2181 MODULE_PARM_DESC(mode, "Davicom DM9xxx: "
2182 "Bit 0: 10/100Mbps, bit 2: duplex, bit 8: HomePNA");
2183
2184 MODULE_PARM_DESC(SF_mode, "Davicom DM9xxx special function "
2185 "(bit 0: VLAN, bit 1 Flow Control, bit 2: TX pause packet)");
2186
2187 /* Description:
2188 * when user used insmod to add module, system invoked init_module()
2189 * to initilize and register.
2190 */
2191
2192 static int __init dmfe_init_module(void)
2193 {
2194 int rc;
2195
2196 printk(version);
2197 printed_version = 1;
2198
2199 DMFE_DBUG(0, "init_module() ", debug);
2200
2201 if (debug)
2202 dmfe_debug = debug; /* set debug flag */
2203 if (cr6set)
2204 dmfe_cr6_user_set = cr6set;
2205
2206 switch(mode) {
2207 case DMFE_10MHF:
2208 case DMFE_100MHF:
2209 case DMFE_10MFD:
2210 case DMFE_100MFD:
2211 case DMFE_1M_HPNA:
2212 dmfe_media_mode = mode;
2213 break;
2214 default:dmfe_media_mode = DMFE_AUTO;
2215 break;
2216 }
2217
2218 if (HPNA_mode > 4)
2219 HPNA_mode = 0; /* Default: LP/HS */
2220 if (HPNA_rx_cmd > 1)
2221 HPNA_rx_cmd = 0; /* Default: Ignored remote cmd */
2222 if (HPNA_tx_cmd > 1)
2223 HPNA_tx_cmd = 0; /* Default: Don't issue remote cmd */
2224 if (HPNA_NoiseFloor > 15)
2225 HPNA_NoiseFloor = 0;
2226
2227 rc = pci_register_driver(&dmfe_driver);
2228 if (rc < 0)
2229 return rc;
2230
2231 return 0;
2232 }
2233
2234
2235 /*
2236 * Description:
2237 * when user used rmmod to delete module, system invoked clean_module()
2238 * to un-register all registered services.
2239 */
2240
2241 static void __exit dmfe_cleanup_module(void)
2242 {
2243 DMFE_DBUG(0, "dmfe_clean_module() ", debug);
2244 pci_unregister_driver(&dmfe_driver);
2245 }
2246
2247 module_init(dmfe_init_module);
2248 module_exit(dmfe_cleanup_module);
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