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[deliverable/linux.git] / drivers / net / tlan.c
CommitLineData
1da177e4
LT		 1/*******************************************************************************
2 *
3 * Linux ThunderLAN Driver
4 *
5 * tlan.c
6 * by James Banks
7 *
8 * (C) 1997-1998 Caldera, Inc.
9 * (C) 1998 James Banks
10 * (C) 1999-2001 Torben Mathiasen
11 * (C) 2002 Samuel Chessman
12 *
13 * This software may be used and distributed according to the terms
14 * of the GNU General Public License, incorporated herein by reference.
15 *
1da177e4
LT		 16 ** Useful (if not required) reading:
17 *
18 * Texas Instruments, ThunderLAN Programmer's Guide,
19 * TI Literature Number SPWU013A
20 * available in PDF format from www.ti.com
21 * Level One, LXT901 and LXT970 Data Sheets
22 * available in PDF format from www.level1.com
23 * National Semiconductor, DP83840A Data Sheet
24 * available in PDF format from www.national.com
25 * Microchip Technology, 24C01A/02A/04A Data Sheet
26 * available in PDF format from www.microchip.com
27 *
c659c38b 28 ******************************************************************************/
1da177e4 29
50624aab
JP		 30#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
31
a6b7a407 32#include <linux/hardirq.h>
1da177e4
LT		 33#include <linux/module.h>
34#include <linux/init.h>
a6b7a407 35#include <linux/interrupt.h>
1da177e4
LT		 36#include <linux/ioport.h>
37#include <linux/eisa.h>
38#include <linux/pci.h>
1e7f0bd8 39#include <linux/dma-mapping.h>
1da177e4
LT		 40#include <linux/netdevice.h>
41#include <linux/etherdevice.h>
42#include <linux/delay.h>
43#include <linux/spinlock.h>
44#include <linux/workqueue.h>
45#include <linux/mii.h>
46
47#include "tlan.h"
48
1da177e4
LT		 49
50/* For removing EISA devices */
c659c38b 51static struct net_device *tlan_eisa_devices;
1da177e4 52
c659c38b 53static int tlan_devices_installed;
1da177e4
LT		 54
55/* Set speed, duplex and aui settings */
56static int aui[MAX_TLAN_BOARDS];
57static int duplex[MAX_TLAN_BOARDS];
58static int speed[MAX_TLAN_BOARDS];
59static int boards_found;
15efa9bb
SH		 60module_param_array(aui, int, NULL, 0);
61module_param_array(duplex, int, NULL, 0);
62module_param_array(speed, int, NULL, 0);
63MODULE_PARM_DESC(aui, "ThunderLAN use AUI port(s) (0-1)");
c659c38b
SA		 64MODULE_PARM_DESC(duplex,
65 "ThunderLAN duplex setting(s) (0-default, 1-half, 2-full)");
50624aab 66MODULE_PARM_DESC(speed, "ThunderLAN port speed setting(s) (0,10,100)");
1da177e4
LT		 67
68MODULE_AUTHOR("Maintainer: Samuel Chessman <chessman@tux.org>");
69MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters");
70MODULE_LICENSE("GPL");
71
72
73/* Define this to enable Link beat monitoring */
74#undef MONITOR
75
76/* Turn on debugging. See Documentation/networking/tlan.txt for details */
77static int debug;
15efa9bb
SH		 78module_param(debug, int, 0);
79MODULE_PARM_DESC(debug, "ThunderLAN debug mask");
1da177e4 80
c659c38b 81static const char tlan_signature[] = "TLAN";
fa6d5d4f 82static const char tlan_banner[] = "ThunderLAN driver v1.17\n";
1da177e4
LT		 83static int tlan_have_pci;
84static int tlan_have_eisa;
85
c659c38b
SA		 86static const char * const media[] = {
87 "10BaseT-HD", "10BaseT-FD", "100baseTx-HD",
88 "100BaseTx-FD", "100BaseT4", NULL
1da177e4
LT		 89};
90
91static struct board {
c659c38b
SA		 92 const char *device_label;
93 u32 flags;
94 u16 addr_ofs;
1da177e4
LT		 95} board_info[] = {
96 { "Compaq Netelligent 10 T PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
c659c38b
SA		 97 { "Compaq Netelligent 10/100 TX PCI UTP",
98 TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
1da177e4 99 { "Compaq Integrated NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
dfc2c0a6
SH		 100 { "Compaq NetFlex-3/P",
101 TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
1da177e4 102 { "Compaq NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
dfc2c0a6
SH		 103 { "Compaq Netelligent Integrated 10/100 TX UTP",
104 TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
c659c38b
SA		 105 { "Compaq Netelligent Dual 10/100 TX PCI UTP",
106 TLAN_ADAPTER_NONE, 0x83 },
107 { "Compaq Netelligent 10/100 TX Embedded UTP",
108 TLAN_ADAPTER_NONE, 0x83 },
1da177e4 109 { "Olicom OC-2183/2185", TLAN_ADAPTER_USE_INTERN_10, 0x83 },
c659c38b
SA		 110 { "Olicom OC-2325", TLAN_ADAPTER_UNMANAGED_PHY, 0xf8 },
111 { "Olicom OC-2326", TLAN_ADAPTER_USE_INTERN_10, 0xf8 },
1da177e4 112 { "Compaq Netelligent 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
c659c38b 113 { "Compaq Netelligent 10 T/2 PCI UTP/coax", TLAN_ADAPTER_NONE, 0x83 },
dfc2c0a6 114 { "Compaq NetFlex-3/E",
c659c38b 115 TLAN_ADAPTER_ACTIVITY_LED | /* EISA card */
dfc2c0a6 116 TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
c659c38b
SA		 117 { "Compaq NetFlex-3/E",
118 TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, /* EISA card */
1da177e4
LT		 119};
120
a3aa1884 121static DEFINE_PCI_DEVICE_TABLE(tlan_pci_tbl) = {
1da177e4 122 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL10,
c659c38b 123 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1da177e4 124 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100,
c659c38b 125 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
1da177e4 126 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3I,
c659c38b 127 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
1da177e4 128 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_THUNDER,
c659c38b 129 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
1da177e4 130 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3B,
c659c38b 131 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
1da177e4 132 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100PI,
c659c38b 133 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
1da177e4 134 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100D,
c659c38b 135 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6 },
1da177e4 136 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100I,
c659c38b 137 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 },
1da177e4 138 { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2183,
c659c38b 139 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
1da177e4 140 { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2325,
c659c38b 141 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 },
1da177e4 142 { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2326,
c659c38b 143 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 },
1da177e4 144 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100,
c659c38b 145 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 },
1da177e4 146 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_T2,
c659c38b 147 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 },
1da177e4
LT		 148 { 0,}
149};
6aa20a22 150MODULE_DEVICE_TABLE(pci, tlan_pci_tbl);
1da177e4 151
c659c38b
SA		 152static void tlan_eisa_probe(void);
153static void tlan_eisa_cleanup(void);
154static int tlan_init(struct net_device *);
155static int tlan_open(struct net_device *dev);
156static netdev_tx_t tlan_start_tx(struct sk_buff *, struct net_device *);
157static irqreturn_t tlan_handle_interrupt(int, void *);
158static int tlan_close(struct net_device *);
159static struct net_device_stats *tlan_get_stats(struct net_device *);
160static void tlan_set_multicast_list(struct net_device *);
161static int tlan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
162static int tlan_probe1(struct pci_dev *pdev, long ioaddr,
163 int irq, int rev, const struct pci_device_id *ent);
164static void tlan_tx_timeout(struct net_device *dev);
165static void tlan_tx_timeout_work(struct work_struct *work);
166static int tlan_init_one(struct pci_dev *pdev,
167 const struct pci_device_id *ent);
168
169static u32 tlan_handle_tx_eof(struct net_device *, u16);
170static u32 tlan_handle_stat_overflow(struct net_device *, u16);
171static u32 tlan_handle_rx_eof(struct net_device *, u16);
172static u32 tlan_handle_dummy(struct net_device *, u16);
173static u32 tlan_handle_tx_eoc(struct net_device *, u16);
174static u32 tlan_handle_status_check(struct net_device *, u16);
175static u32 tlan_handle_rx_eoc(struct net_device *, u16);
176
177static void tlan_timer(unsigned long);
178
179static void tlan_reset_lists(struct net_device *);
180static void tlan_free_lists(struct net_device *);
181static void tlan_print_dio(u16);
182static void tlan_print_list(struct tlan_list *, char *, int);
183static void tlan_read_and_clear_stats(struct net_device *, int);
184static void tlan_reset_adapter(struct net_device *);
185static void tlan_finish_reset(struct net_device *);
186static void tlan_set_mac(struct net_device *, int areg, char *mac);
187
188static void tlan_phy_print(struct net_device *);
189static void tlan_phy_detect(struct net_device *);
190static void tlan_phy_power_down(struct net_device *);
191static void tlan_phy_power_up(struct net_device *);
192static void tlan_phy_reset(struct net_device *);
193static void tlan_phy_start_link(struct net_device *);
194static void tlan_phy_finish_auto_neg(struct net_device *);
1da177e4 195#ifdef MONITOR
c659c38b 196static void tlan_phy_monitor(struct net_device *);
1da177e4
LT		 197#endif
198
199/*
c659c38b
SA		 200 static int tlan_phy_nop(struct net_device *);
201 static int tlan_phy_internal_check(struct net_device *);
202 static int tlan_phy_internal_service(struct net_device *);
203 static int tlan_phy_dp83840a_check(struct net_device *);
1da177e4
LT		 204*/
205
c659c38b
SA		 206static bool tlan_mii_read_reg(struct net_device *, u16, u16, u16 *);
207static void tlan_mii_send_data(u16, u32, unsigned);
208static void tlan_mii_sync(u16);
209static void tlan_mii_write_reg(struct net_device *, u16, u16, u16);
1da177e4 210
c659c38b
SA		 211static void tlan_ee_send_start(u16);
212static int tlan_ee_send_byte(u16, u8, int);
213static void tlan_ee_receive_byte(u16, u8 *, int);
214static int tlan_ee_read_byte(struct net_device *, u8, u8 *);
1da177e4
LT		 215
216
93e16847 217static inline void
c659c38b 218tlan_store_skb(struct tlan_list *tag, struct sk_buff *skb)
1da177e4
LT		 219{
220 unsigned long addr = (unsigned long)skb;
93e16847
SH		 221 tag->buffer[9].address = addr;
222 tag->buffer[8].address = upper_32_bits(addr);
1da177e4
LT		 223}
224
93e16847 225static inline struct sk_buff *
c659c38b 226tlan_get_skb(const struct tlan_list *tag)
1da177e4 227{
93e16847
SH		 228 unsigned long addr;
229
0d63bea2
RF		 230 addr = tag->buffer[9].address;
231 addr |= (tag->buffer[8].address << 16) << 16;
1da177e4
LT		 232 return (struct sk_buff *) addr;
233}
234
c659c38b
SA		 235static u32
236(*tlan_int_vector[TLAN_INT_NUMBER_OF_INTS])(struct net_device *, u16) = {
a3ccc789 237 NULL,
c659c38b
SA		 238 tlan_handle_tx_eof,
239 tlan_handle_stat_overflow,
240 tlan_handle_rx_eof,
241 tlan_handle_dummy,
242 tlan_handle_tx_eoc,
243 tlan_handle_status_check,
244 tlan_handle_rx_eoc
1da177e4
LT		 245};
246
247static inline void
c659c38b 248tlan_set_timer(struct net_device *dev, u32 ticks, u32 type)
1da177e4 249{
c659c38b 250 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 251 unsigned long flags = 0;
6aa20a22 252
1da177e4
LT		 253 if (!in_irq())
254 spin_lock_irqsave(&priv->lock, flags);
c659c38b
SA		 255 if (priv->timer.function != NULL &&
256 priv->timer_type != TLAN_TIMER_ACTIVITY) {
1da177e4
LT		 257 if (!in_irq())
258 spin_unlock_irqrestore(&priv->lock, flags);
259 return;
260 }
c659c38b 261 priv->timer.function = tlan_timer;
1da177e4
LT		 262 if (!in_irq())
263 spin_unlock_irqrestore(&priv->lock, flags);
264
265 priv->timer.data = (unsigned long) dev;
c659c38b
SA		 266 priv->timer_set_at = jiffies;
267 priv->timer_type = type;
1da177e4 268 mod_timer(&priv->timer, jiffies + ticks);
6aa20a22 269
c659c38b 270}
1da177e4
LT		 271
272
273/*****************************************************************************
274******************************************************************************
275
c659c38b 276ThunderLAN driver primary functions
1da177e4 277
c659c38b 278these functions are more or less common to all linux network drivers.
1da177e4
LT		 279
280******************************************************************************
281*****************************************************************************/
282
283
284
285
286
c659c38b
SA		 287/***************************************************************
288 * tlan_remove_one
289 *
290 * Returns:
291 * Nothing
292 * Parms:
293 * None
294 *
295 * Goes through the TLanDevices list and frees the device
296 * structs and memory associated with each device (lists
297 * and buffers). It also ureserves the IO port regions
298 * associated with this device.
299 *
300 **************************************************************/
1da177e4
LT		 301
302
c659c38b 303static void __devexit tlan_remove_one(struct pci_dev *pdev)
1da177e4 304{
c659c38b
SA		 305 struct net_device *dev = pci_get_drvdata(pdev);
306 struct tlan_priv *priv = netdev_priv(dev);
6aa20a22 307
c659c38b 308 unregister_netdev(dev);
1da177e4 309
c659c38b
SA		 310 if (priv->dma_storage) {
311 pci_free_consistent(priv->pci_dev,
312 priv->dma_size, priv->dma_storage,
313 priv->dma_storage_dma);
1da177e4
LT		 314 }
315
316#ifdef CONFIG_PCI
317 pci_release_regions(pdev);
318#endif
6aa20a22 319
c659c38b 320 free_netdev(dev);
6aa20a22 321
c659c38b 322 pci_set_drvdata(pdev, NULL);
6aa20a22 323}
1da177e4 324
fa6d5d4f
SA		 325static void tlan_start(struct net_device *dev)
326{
327 tlan_reset_lists(dev);
328 /* NOTE: It might not be necessary to read the stats before a
329 reset if you don't care what the values are.
330 */
331 tlan_read_and_clear_stats(dev, TLAN_IGNORE);
332 tlan_reset_adapter(dev);
333 netif_wake_queue(dev);
334}
335
336static void tlan_stop(struct net_device *dev)
337{
338 struct tlan_priv *priv = netdev_priv(dev);
339
340 tlan_read_and_clear_stats(dev, TLAN_RECORD);
341 outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD);
342 /* Reset and power down phy */
343 tlan_reset_adapter(dev);
344 if (priv->timer.function != NULL) {
345 del_timer_sync(&priv->timer);
346 priv->timer.function = NULL;
347 }
348}
349
350#ifdef CONFIG_PM
351
352static int tlan_suspend(struct pci_dev *pdev, pm_message_t state)
353{
354 struct net_device *dev = pci_get_drvdata(pdev);
355
356 if (netif_running(dev))
357 tlan_stop(dev);
358
359 netif_device_detach(dev);
360 pci_save_state(pdev);
361 pci_disable_device(pdev);
362 pci_wake_from_d3(pdev, false);
363 pci_set_power_state(pdev, PCI_D3hot);
364
365 return 0;
366}
367
368static int tlan_resume(struct pci_dev *pdev)
369{
370 struct net_device *dev = pci_get_drvdata(pdev);
371
372 pci_set_power_state(pdev, PCI_D0);
373 pci_restore_state(pdev);
374 pci_enable_wake(pdev, 0, 0);
375 netif_device_attach(dev);
376
377 if (netif_running(dev))
378 tlan_start(dev);
379
380 return 0;
381}
382
383#else /* CONFIG_PM */
384
385#define tlan_suspend NULL
386#define tlan_resume NULL
387
388#endif /* CONFIG_PM */
389
390
1da177e4
LT		 391static struct pci_driver tlan_driver = {
392 .name = "tlan",
393 .id_table = tlan_pci_tbl,
394 .probe = tlan_init_one,
6aa20a22 395 .remove = __devexit_p(tlan_remove_one),
fa6d5d4f
SA		 396 .suspend = tlan_suspend,
397 .resume = tlan_resume,
1da177e4
LT		 398};
399
400static int __init tlan_probe(void)
401{
6c04a515 402 int rc = -ENODEV;
6aa20a22 403
50624aab 404 pr_info("%s", tlan_banner);
6aa20a22 405
1da177e4 406 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n");
6aa20a22 407
1da177e4
LT		 408 /* Use new style PCI probing. Now the kernel will
409 do most of this for us */
6c04a515
LP		 410 rc = pci_register_driver(&tlan_driver);
411
412 if (rc != 0) {
50624aab 413 pr_err("Could not register pci driver\n");
6c04a515
LP		 414 goto err_out_pci_free;
415 }
1da177e4
LT		 416
417 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n");
c659c38b 418 tlan_eisa_probe();
6aa20a22 419
50624aab
JP		 420 pr_info("%d device%s installed, PCI: %d EISA: %d\n",
421 tlan_devices_installed, tlan_devices_installed == 1 ? "" : "s",
422 tlan_have_pci, tlan_have_eisa);
1da177e4 423
c659c38b 424 if (tlan_devices_installed == 0) {
6c04a515
LP		 425 rc = -ENODEV;
426 goto err_out_pci_unreg;
1da177e4
LT		 427 }
428 return 0;
6c04a515
LP		 429
430err_out_pci_unreg:
431 pci_unregister_driver(&tlan_driver);
432err_out_pci_free:
6c04a515 433 return rc;
1da177e4 434}
6aa20a22 435
1da177e4 436
c659c38b
SA		 437static int __devinit tlan_init_one(struct pci_dev *pdev,
438 const struct pci_device_id *ent)
1da177e4 439{
c659c38b 440 return tlan_probe1(pdev, -1, -1, 0, ent);
1da177e4
LT		 441}
442
443
444/*
c659c38b
SA		 445***************************************************************
446* tlan_probe1
447*
448* Returns:
449* 0 on success, error code on error
450* Parms:
451* none
452*
453* The name is lower case to fit in with all the rest of
454* the netcard_probe names. This function looks for
455* another TLan based adapter, setting it up with the
456* allocated device struct if one is found.
457* tlan_probe has been ported to the new net API and
458* now allocates its own device structure. This function
459* is also used by modules.
460*
461**************************************************************/
462
463static int __devinit tlan_probe1(struct pci_dev *pdev,
dfc2c0a6 464 long ioaddr, int irq, int rev,
c659c38b 465 const struct pci_device_id *ent)
1da177e4
LT		 466{
467
468 struct net_device *dev;
c659c38b 469 struct tlan_priv *priv;
1da177e4
LT		 470 u16 device_id;
471 int reg, rc = -ENODEV;
472
ad9f6713 473#ifdef CONFIG_PCI
1da177e4
LT		 474 if (pdev) {
475 rc = pci_enable_device(pdev);
476 if (rc)
477 return rc;
478
c659c38b 479 rc = pci_request_regions(pdev, tlan_signature);
1da177e4 480 if (rc) {
50624aab 481 pr_err("Could not reserve IO regions\n");
1da177e4
LT		 482 goto err_out;
483 }
484 }
ad9f6713 485#endif /* CONFIG_PCI */
1da177e4 486
c659c38b 487 dev = alloc_etherdev(sizeof(struct tlan_priv));
1da177e4 488 if (dev == NULL) {
50624aab 489 pr_err("Could not allocate memory for device\n");
1da177e4
LT		 490 rc = -ENOMEM;
491 goto err_out_regions;
492 }
1da177e4 493 SET_NETDEV_DEV(dev, &pdev->dev);
6aa20a22 494
1da177e4
LT		 495 priv = netdev_priv(dev);
496
c659c38b 497 priv->pci_dev = pdev;
c4028958 498 priv->dev = dev;
6aa20a22 499
1da177e4
LT		 500 /* Is this a PCI device? */
501 if (pdev) {
c659c38b 502 u32 pci_io_base = 0;
1da177e4
LT		 503
504 priv->adapter = &board_info[ent->driver_data];
505
284901a9 506 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1da177e4 507 if (rc) {
50624aab 508 pr_err("No suitable PCI mapping available\n");
1da177e4
LT		 509 goto err_out_free_dev;
510 }
511
c659c38b 512 for (reg = 0; reg <= 5; reg++) {
1da177e4
LT		 513 if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) {
514 pci_io_base = pci_resource_start(pdev, reg);
c659c38b
SA		 515 TLAN_DBG(TLAN_DEBUG_GNRL,
516 "IO mapping is available at %x.\n",
517 pci_io_base);
1da177e4
LT		 518 break;
519 }
520 }
521 if (!pci_io_base) {
50624aab 522 pr_err("No IO mappings available\n");
1da177e4
LT		 523 rc = -EIO;
524 goto err_out_free_dev;
525 }
6aa20a22 526
1da177e4
LT		 527 dev->base_addr = pci_io_base;
528 dev->irq = pdev->irq;
c659c38b 529 priv->adapter_rev = pdev->revision;
1da177e4
LT		 530 pci_set_master(pdev);
531 pci_set_drvdata(pdev, dev);
532
533 } else { /* EISA card */
534 /* This is a hack. We need to know which board structure
535 * is suited for this adapter */
536 device_id = inw(ioaddr + EISA_ID2);
537 priv->is_eisa = 1;
538 if (device_id == 0x20F1) {
c659c38b
SA		 539 priv->adapter = &board_info[13]; /* NetFlex-3/E */
540 priv->adapter_rev = 23; /* TLAN 2.3 */
1da177e4
LT		 541 } else {
542 priv->adapter = &board_info[14];
c659c38b 543 priv->adapter_rev = 10; /* TLAN 1.0 */
1da177e4
LT		 544 }
545 dev->base_addr = ioaddr;
546 dev->irq = irq;
547 }
548
549 /* Kernel parameters */
550 if (dev->mem_start) {
551 priv->aui = dev->mem_start & 0x01;
dfc2c0a6
SH		 552 priv->duplex = ((dev->mem_start & 0x06) == 0x06) ? 0
553 : (dev->mem_start & 0x06) >> 1;
554 priv->speed = ((dev->mem_start & 0x18) == 0x18) ? 0
555 : (dev->mem_start & 0x18) >> 3;
6aa20a22 556
c659c38b 557 if (priv->speed == 0x1)
1da177e4 558 priv->speed = TLAN_SPEED_10;
c659c38b 559 else if (priv->speed == 0x2)
1da177e4 560 priv->speed = TLAN_SPEED_100;
c659c38b 561
1da177e4
LT		 562 debug = priv->debug = dev->mem_end;
563 } else {
564 priv->aui = aui[boards_found];
565 priv->speed = speed[boards_found];
566 priv->duplex = duplex[boards_found];
567 priv->debug = debug;
568 }
6aa20a22 569
1da177e4
LT		 570 /* This will be used when we get an adapter error from
571 * within our irq handler */
c659c38b 572 INIT_WORK(&priv->tlan_tqueue, tlan_tx_timeout_work);
1da177e4
LT		 573
574 spin_lock_init(&priv->lock);
6aa20a22 575
c659c38b 576 rc = tlan_init(dev);
1da177e4 577 if (rc) {
50624aab 578 pr_err("Could not set up device\n");
1da177e4
LT		 579 goto err_out_free_dev;
580 }
581
582 rc = register_netdev(dev);
583 if (rc) {
50624aab 584 pr_err("Could not register device\n");
1da177e4
LT		 585 goto err_out_uninit;
586 }
587
6aa20a22 588
c659c38b 589 tlan_devices_installed++;
1da177e4 590 boards_found++;
6aa20a22 591
1da177e4
LT		 592 /* pdev is NULL if this is an EISA device */
593 if (pdev)
594 tlan_have_pci++;
595 else {
c659c38b
SA		 596 priv->next_device = tlan_eisa_devices;
597 tlan_eisa_devices = dev;
1da177e4
LT		 598 tlan_have_eisa++;
599 }
6aa20a22 600
50624aab
JP		 601 netdev_info(dev, "irq=%2d, io=%04x, %s, Rev. %d\n",
602 (int)dev->irq,
603 (int)dev->base_addr,
604 priv->adapter->device_label,
605 priv->adapter_rev);
1da177e4
LT		 606 return 0;
607
608err_out_uninit:
c659c38b
SA		 609 pci_free_consistent(priv->pci_dev, priv->dma_size, priv->dma_storage,
610 priv->dma_storage_dma);
1da177e4
LT		 611err_out_free_dev:
612 free_netdev(dev);
613err_out_regions:
614#ifdef CONFIG_PCI
615 if (pdev)
616 pci_release_regions(pdev);
617#endif
618err_out:
619 if (pdev)
620 pci_disable_device(pdev);
621 return rc;
622}
623
624
c659c38b 625static void tlan_eisa_cleanup(void)
1da177e4
LT		 626{
627 struct net_device *dev;
c659c38b 628 struct tlan_priv *priv;
6aa20a22 629
c659c38b
SA		 630 while (tlan_have_eisa) {
631 dev = tlan_eisa_devices;
1da177e4 632 priv = netdev_priv(dev);
c659c38b
SA		 633 if (priv->dma_storage) {
634 pci_free_consistent(priv->pci_dev, priv->dma_size,
635 priv->dma_storage,
636 priv->dma_storage_dma);
1da177e4 637 }
c659c38b
SA		 638 release_region(dev->base_addr, 0x10);
639 unregister_netdev(dev);
640 tlan_eisa_devices = priv->next_device;
641 free_netdev(dev);
1da177e4
LT		 642 tlan_have_eisa--;
643 }
644}
6aa20a22
JG		 645
646
1da177e4
LT		 647static void __exit tlan_exit(void)
648{
649 pci_unregister_driver(&tlan_driver);
650
651 if (tlan_have_eisa)
c659c38b 652 tlan_eisa_cleanup();
1da177e4 653
1da177e4
LT		 654}
655
656
657/* Module loading/unloading */
658module_init(tlan_probe);
659module_exit(tlan_exit);
660
661
662
c659c38b
SA		 663/**************************************************************
664 * tlan_eisa_probe
665 *
666 * Returns: 0 on success, 1 otherwise
667 *
668 * Parms: None
669 *
670 *
671 * This functions probes for EISA devices and calls
672 * TLan_probe1 when one is found.
673 *
674 *************************************************************/
1da177e4 675
c659c38b 676static void __init tlan_eisa_probe(void)
1da177e4 677{
c659c38b
SA		 678 long ioaddr;
679 int rc = -ENODEV;
680 int irq;
1da177e4
LT		 681 u16 device_id;
682
6aa20a22 683 if (!EISA_bus) {
1da177e4
LT		 684 TLAN_DBG(TLAN_DEBUG_PROBE, "No EISA bus present\n");
685 return;
686 }
6aa20a22 687
1da177e4
LT		 688 /* Loop through all slots of the EISA bus */
689 for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) {
6aa20a22 690
c659c38b
SA		 691 TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n",
692 (int) ioaddr + 0xc80, inw(ioaddr + EISA_ID));
693 TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n",
694 (int) ioaddr + 0xc82, inw(ioaddr + EISA_ID2));
1da177e4
LT		 695
696
c659c38b
SA		 697 TLAN_DBG(TLAN_DEBUG_PROBE,
698 "Probing for EISA adapter at IO: 0x%4x : ",
699 (int) ioaddr);
700 if (request_region(ioaddr, 0x10, tlan_signature) == NULL)
1da177e4
LT		 701 goto out;
702
6aa20a22 703 if (inw(ioaddr + EISA_ID) != 0x110E) {
1da177e4
LT		 704 release_region(ioaddr, 0x10);
705 goto out;
706 }
6aa20a22 707
1da177e4 708 device_id = inw(ioaddr + EISA_ID2);
6aa20a22 709 if (device_id != 0x20F1 && device_id != 0x40F1) {
c659c38b 710 release_region(ioaddr, 0x10);
1da177e4
LT		 711 goto out;
712 }
6aa20a22 713
c659c38b
SA		 714 /* check if adapter is enabled */
715 if (inb(ioaddr + EISA_CR) != 0x1) {
716 release_region(ioaddr, 0x10);
1da177e4
LT		 717 goto out2;
718 }
6aa20a22
JG		 719
720 if (debug == 0x10)
50624aab 721 pr_info("Found one\n");
1da177e4
LT		 722
723
724 /* Get irq from board */
c659c38b
SA		 725 switch (inb(ioaddr + 0xcc0)) {
726 case(0x10):
727 irq = 5;
728 break;
729 case(0x20):
730 irq = 9;
731 break;
732 case(0x40):
733 irq = 10;
734 break;
735 case(0x80):
736 irq = 11;
737 break;
738 default:
739 goto out;
6aa20a22
JG		 740 }
741
742
1da177e4 743 /* Setup the newly found eisa adapter */
c659c38b
SA		 744 rc = tlan_probe1(NULL, ioaddr, irq,
745 12, NULL);
1da177e4 746 continue;
6aa20a22 747
c659c38b
SA		 748out:
749 if (debug == 0x10)
50624aab 750 pr_info("None found\n");
c659c38b 751 continue;
1da177e4 752
c659c38b
SA		 753out2:
754 if (debug == 0x10)
50624aab 755 pr_info("Card found but it is not enabled, skipping\n");
c659c38b 756 continue;
6aa20a22 757
1da177e4
LT		 758 }
759
c659c38b 760}
1da177e4
LT		 761
762#ifdef CONFIG_NET_POLL_CONTROLLER
c659c38b 763static void tlan_poll(struct net_device *dev)
1da177e4
LT		 764{
765 disable_irq(dev->irq);
c659c38b 766 tlan_handle_interrupt(dev->irq, dev);
1da177e4
LT		 767 enable_irq(dev->irq);
768}
769#endif
770
c659c38b
SA		 771static const struct net_device_ops tlan_netdev_ops = {
772 .ndo_open = tlan_open,
773 .ndo_stop = tlan_close,
774 .ndo_start_xmit = tlan_start_tx,
775 .ndo_tx_timeout = tlan_tx_timeout,
776 .ndo_get_stats = tlan_get_stats,
777 .ndo_set_multicast_list = tlan_set_multicast_list,
778 .ndo_do_ioctl = tlan_ioctl,
391c5e6e 779 .ndo_change_mtu = eth_change_mtu,
c659c38b 780 .ndo_set_mac_address = eth_mac_addr,
391c5e6e
SH		 781 .ndo_validate_addr = eth_validate_addr,
782#ifdef CONFIG_NET_POLL_CONTROLLER
c659c38b 783 .ndo_poll_controller = tlan_poll,
391c5e6e
SH		 784#endif
785};
6aa20a22 786
1da177e4
LT		 787
788
c659c38b
SA		 789/***************************************************************
790 * tlan_init
791 *
792 * Returns:
793 * 0 on success, error code otherwise.
794 * Parms:
795 * dev The structure of the device to be
796 * init'ed.
797 *
798 * This function completes the initialization of the
799 * device structure and driver. It reserves the IO
800 * addresses, allocates memory for the lists and bounce
801 * buffers, retrieves the MAC address from the eeprom
802 * and assignes the device's methods.
803 *
804 **************************************************************/
805
806static int tlan_init(struct net_device *dev)
1da177e4
LT		 807{
808 int dma_size;
c659c38b 809 int err;
1da177e4 810 int i;
c659c38b 811 struct tlan_priv *priv;
1da177e4
LT		 812
813 priv = netdev_priv(dev);
6aa20a22 814
c659c38b
SA		 815 dma_size = (TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS)
816 * (sizeof(struct tlan_list));
817 priv->dma_storage = pci_alloc_consistent(priv->pci_dev,
818 dma_size,
819 &priv->dma_storage_dma);
820 priv->dma_size = dma_size;
821
822 if (priv->dma_storage == NULL) {
50624aab 823 pr_err("Could not allocate lists and buffers for %s\n",
c659c38b 824 dev->name);
1da177e4
LT		 825 return -ENOMEM;
826 }
c659c38b
SA		 827 memset(priv->dma_storage, 0, dma_size);
828 priv->rx_list = (struct tlan_list *)
829 ALIGN((unsigned long)priv->dma_storage, 8);
830 priv->rx_list_dma = ALIGN(priv->dma_storage_dma, 8);
831 priv->tx_list = priv->rx_list + TLAN_NUM_RX_LISTS;
832 priv->tx_list_dma =
833 priv->rx_list_dma + sizeof(struct tlan_list)*TLAN_NUM_RX_LISTS;
93e16847 834
1da177e4 835 err = 0;
c659c38b
SA		 836 for (i = 0; i < 6 ; i++)
837 err |= tlan_ee_read_byte(dev,
838 (u8) priv->adapter->addr_ofs + i,
839 (u8 *) &dev->dev_addr[i]);
840 if (err) {
50624aab
JP		 841 pr_err("%s: Error reading MAC from eeprom: %d\n",
842 dev->name, err);
1da177e4
LT		 843 }
844 dev->addr_len = 6;
845
846 netif_carrier_off(dev);
847
848 /* Device methods */
c659c38b 849 dev->netdev_ops = &tlan_netdev_ops;
1da177e4
LT		 850 dev->watchdog_timeo = TX_TIMEOUT;
851
852 return 0;
853
c659c38b 854}
1da177e4
LT		 855
856
857
858
c659c38b
SA		 859/***************************************************************
860 * tlan_open
861 *
862 * Returns:
863 * 0 on success, error code otherwise.
864 * Parms:
865 * dev Structure of device to be opened.
866 *
867 * This routine puts the driver and TLAN adapter in a
868 * state where it is ready to send and receive packets.
869 * It allocates the IRQ, resets and brings the adapter
870 * out of reset, and allows interrupts. It also delays
871 * the startup for autonegotiation or sends a Rx GO
872 * command to the adapter, as appropriate.
873 *
874 **************************************************************/
1da177e4 875
c659c38b 876static int tlan_open(struct net_device *dev)
1da177e4 877{
c659c38b 878 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 879 int err;
6aa20a22 880
c659c38b
SA		 881 priv->tlan_rev = tlan_dio_read8(dev->base_addr, TLAN_DEF_REVISION);
882 err = request_irq(dev->irq, tlan_handle_interrupt, IRQF_SHARED,
883 dev->name, dev);
6aa20a22 884
c659c38b 885 if (err) {
50624aab
JP		 886 netdev_err(dev, "Cannot open because IRQ %d is already in use\n",
887 dev->irq);
1da177e4
LT		 888 return err;
889 }
6aa20a22 890
1da177e4 891 init_timer(&priv->timer);
6aa20a22 892
fa6d5d4f 893 tlan_start(dev);
1da177e4 894
c659c38b
SA		 895 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %x\n",
896 dev->name, priv->tlan_rev);
1da177e4
LT		 897
898 return 0;
899
c659c38b 900}
1da177e4
LT		 901
902
903
c659c38b
SA		 904/**************************************************************
905 * tlan_ioctl
906 *
907 * Returns:
908 * 0 on success, error code otherwise
909 * Params:
910 * dev structure of device to receive ioctl.
911 *
912 * rq ifreq structure to hold userspace data.
913 *
914 * cmd ioctl command.
915 *
916 *
917 *************************************************************/
1da177e4 918
c659c38b 919static int tlan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1da177e4 920{
c659c38b 921 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 922 struct mii_ioctl_data *data = if_mii(rq);
c659c38b 923 u32 phy = priv->phy[priv->phy_num];
6aa20a22 924
c659c38b 925 if (!priv->phy_online)
1da177e4
LT		 926 return -EAGAIN;
927
c659c38b
SA		 928 switch (cmd) {
929 case SIOCGMIIPHY: /* get address of MII PHY in use. */
930 data->phy_id = phy;
1da177e4
LT		 931
932
c659c38b
SA		 933 case SIOCGMIIREG: /* read MII PHY register. */
934 tlan_mii_read_reg(dev, data->phy_id & 0x1f,
935 data->reg_num & 0x1f, &data->val_out);
936 return 0;
6aa20a22 937
1da177e4 938
c659c38b
SA		 939 case SIOCSMIIREG: /* write MII PHY register. */
940 tlan_mii_write_reg(dev, data->phy_id & 0x1f,
941 data->reg_num & 0x1f, data->val_in);
942 return 0;
943 default:
944 return -EOPNOTSUPP;
1da177e4 945 }
c659c38b 946}
1da177e4
LT		 947
948
c659c38b
SA		 949/***************************************************************
950 * tlan_tx_timeout
951 *
952 * Returns: nothing
953 *
954 * Params:
955 * dev structure of device which timed out
956 * during transmit.
957 *
958 **************************************************************/
1da177e4 959
c659c38b 960static void tlan_tx_timeout(struct net_device *dev)
1da177e4 961{
6aa20a22 962
c659c38b 963 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Transmit timed out.\n", dev->name);
6aa20a22 964
1da177e4 965 /* Ok so we timed out, lets see what we can do about it...*/
c659c38b
SA		 966 tlan_free_lists(dev);
967 tlan_reset_lists(dev);
968 tlan_read_and_clear_stats(dev, TLAN_IGNORE);
969 tlan_reset_adapter(dev);
1ae5dc34 970 dev->trans_start = jiffies; /* prevent tx timeout */
c659c38b 971 netif_wake_queue(dev);
1da177e4
LT		 972
973}
6aa20a22 974
1da177e4 975
c659c38b
SA		 976/***************************************************************
977 * tlan_tx_timeout_work
978 *
979 * Returns: nothing
980 *
981 * Params:
982 * work work item of device which timed out
983 *
984 **************************************************************/
c4028958 985
c659c38b 986static void tlan_tx_timeout_work(struct work_struct *work)
c4028958 987{
c659c38b
SA		 988 struct tlan_priv *priv =
989 container_of(work, struct tlan_priv, tlan_tqueue);
c4028958 990
c659c38b 991 tlan_tx_timeout(priv->dev);
c4028958
DH		 992}
993
994
1da177e4 995
c659c38b
SA		 996/***************************************************************
997 * tlan_start_tx
998 *
999 * Returns:
1000 * 0 on success, non-zero on failure.
1001 * Parms:
1002 * skb A pointer to the sk_buff containing the
1003 * frame to be sent.
1004 * dev The device to send the data on.
1005 *
1006 * This function adds a frame to the Tx list to be sent
1007 * ASAP. First it verifies that the adapter is ready and
1008 * there is room in the queue. Then it sets up the next
1009 * available list, copies the frame to the corresponding
1010 * buffer. If the adapter Tx channel is idle, it gives
1011 * the adapter a Tx Go command on the list, otherwise it
1012 * sets the forward address of the previous list to point
1013 * to this one. Then it frees the sk_buff.
1014 *
1015 **************************************************************/
1016
1017static netdev_tx_t tlan_start_tx(struct sk_buff *skb, struct net_device *dev)
1da177e4 1018{
c659c38b 1019 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1020 dma_addr_t tail_list_phys;
c659c38b 1021 struct tlan_list *tail_list;
1da177e4 1022 unsigned long flags;
8953f128 1023 unsigned int txlen;
1da177e4 1024
c659c38b
SA		 1025 if (!priv->phy_online) {
1026 TLAN_DBG(TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n",
1027 dev->name);
1da177e4 1028 dev_kfree_skb_any(skb);
6ed10654 1029 return NETDEV_TX_OK;
1da177e4
LT		 1030 }
1031
41873e9a 1032 if (skb_padto(skb, TLAN_MIN_FRAME_SIZE))
6ed10654 1033 return NETDEV_TX_OK;
8953f128 1034 txlen = max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE);
41873e9a 1035
c659c38b
SA		 1036 tail_list = priv->tx_list + priv->tx_tail;
1037 tail_list_phys =
1038 priv->tx_list_dma + sizeof(struct tlan_list)*priv->tx_tail;
6aa20a22 1039
c659c38b
SA		 1040 if (tail_list->c_stat != TLAN_CSTAT_UNUSED) {
1041 TLAN_DBG(TLAN_DEBUG_TX,
1042 "TRANSMIT: %s is busy (Head=%d Tail=%d)\n",
1043 dev->name, priv->tx_head, priv->tx_tail);
1da177e4 1044 netif_stop_queue(dev);
c659c38b 1045 priv->tx_busy_count++;
5b548140 1046 return NETDEV_TX_BUSY;
1da177e4
LT		 1047 }
1048
1049 tail_list->forward = 0;
1050
c659c38b 1051 tail_list->buffer[0].address = pci_map_single(priv->pci_dev,
5eeabf51
SA		 1052 skb->data, txlen,
1053 PCI_DMA_TODEVICE);
c659c38b 1054 tlan_store_skb(tail_list, skb);
1da177e4 1055
c659c38b 1056 tail_list->frame_size = (u16) txlen;
8953f128 1057 tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) txlen;
41873e9a
SH		 1058 tail_list->buffer[1].count = 0;
1059 tail_list->buffer[1].address = 0;
1da177e4
LT		 1060
1061 spin_lock_irqsave(&priv->lock, flags);
c659c38b
SA		 1062 tail_list->c_stat = TLAN_CSTAT_READY;
1063 if (!priv->tx_in_progress) {
1064 priv->tx_in_progress = 1;
1065 TLAN_DBG(TLAN_DEBUG_TX,
1066 "TRANSMIT: Starting TX on buffer %d\n",
1067 priv->tx_tail);
1068 outl(tail_list_phys, dev->base_addr + TLAN_CH_PARM);
1069 outl(TLAN_HC_GO, dev->base_addr + TLAN_HOST_CMD);
1da177e4 1070 } else {
c659c38b
SA		 1071 TLAN_DBG(TLAN_DEBUG_TX,
1072 "TRANSMIT: Adding buffer %d to TX channel\n",
1073 priv->tx_tail);
1074 if (priv->tx_tail == 0) {
1075 (priv->tx_list + (TLAN_NUM_TX_LISTS - 1))->forward
dfc2c0a6 1076 = tail_list_phys;
1da177e4 1077 } else {
c659c38b 1078 (priv->tx_list + (priv->tx_tail - 1))->forward
dfc2c0a6 1079 = tail_list_phys;
1da177e4
LT		 1080 }
1081 }
1082 spin_unlock_irqrestore(&priv->lock, flags);
1083
c659c38b 1084 CIRC_INC(priv->tx_tail, TLAN_NUM_TX_LISTS);
1da177e4 1085
6ed10654 1086 return NETDEV_TX_OK;
1da177e4 1087
c659c38b 1088}
1da177e4
LT		 1089
1090
1091
1092
c659c38b
SA		 1093/***************************************************************
1094 * tlan_handle_interrupt
1095 *
1096 * Returns:
1097 * Nothing
1098 * Parms:
1099 * irq The line on which the interrupt
1100 * occurred.
1101 * dev_id A pointer to the device assigned to
1102 * this irq line.
1103 *
1104 * This function handles an interrupt generated by its
1105 * assigned TLAN adapter. The function deactivates
1106 * interrupts on its adapter, records the type of
1107 * interrupt, executes the appropriate subhandler, and
1108 * acknowdges the interrupt to the adapter (thus
1109 * re-enabling adapter interrupts.
1110 *
1111 **************************************************************/
1da177e4 1112
c659c38b 1113static irqreturn_t tlan_handle_interrupt(int irq, void *dev_id)
1da177e4 1114{
a3ccc789 1115 struct net_device *dev = dev_id;
c659c38b 1116 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1117 u16 host_int;
a3ccc789 1118 u16 type;
1da177e4
LT		 1119
1120 spin_lock(&priv->lock);
1121
c659c38b
SA		 1122 host_int = inw(dev->base_addr + TLAN_HOST_INT);
1123 type = (host_int & TLAN_HI_IT_MASK) >> 2;
1124 if (type) {
a3ccc789
SH		 1125 u32 ack;
1126 u32 host_cmd;
1da177e4 1127
c659c38b
SA		 1128 outw(host_int, dev->base_addr + TLAN_HOST_INT);
1129 ack = tlan_int_vector[type](dev, host_int);
1da177e4 1130
c659c38b
SA		 1131 if (ack) {
1132 host_cmd = TLAN_HC_ACK | ack | (type << 18);
1133 outl(host_cmd, dev->base_addr + TLAN_HOST_CMD);
a3ccc789 1134 }
1da177e4
LT		 1135 }
1136
1137 spin_unlock(&priv->lock);
1138
a3ccc789 1139 return IRQ_RETVAL(type);
c659c38b 1140}
1da177e4
LT		 1141
1142
1143
1144
c659c38b
SA		 1145/***************************************************************
1146 * tlan_close
1147 *
1148 * Returns:
1149 * An error code.
1150 * Parms:
1151 * dev The device structure of the device to
1152 * close.
1153 *
1154 * This function shuts down the adapter. It records any
1155 * stats, puts the adapter into reset state, deactivates
1156 * its time as needed, and frees the irq it is using.
1157 *
1158 **************************************************************/
1da177e4 1159
c659c38b 1160static int tlan_close(struct net_device *dev)
1da177e4 1161{
c659c38b 1162 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1163
1da177e4 1164 priv->neg_be_verbose = 0;
fa6d5d4f 1165 tlan_stop(dev);
6aa20a22 1166
c659c38b
SA		 1167 free_irq(dev->irq, dev);
1168 tlan_free_lists(dev);
1169 TLAN_DBG(TLAN_DEBUG_GNRL, "Device %s closed.\n", dev->name);
1da177e4
LT		 1170
1171 return 0;
1172
c659c38b 1173}
1da177e4
LT		 1174
1175
1176
1177
c659c38b
SA		 1178/***************************************************************
1179 * tlan_get_stats
1180 *
1181 * Returns:
1182 * A pointer to the device's statistics structure.
1183 * Parms:
1184 * dev The device structure to return the
1185 * stats for.
1186 *
1187 * This function updates the devices statistics by reading
1188 * the TLAN chip's onboard registers. Then it returns the
1189 * address of the statistics structure.
1190 *
1191 **************************************************************/
1da177e4 1192
c659c38b 1193static struct net_device_stats *tlan_get_stats(struct net_device *dev)
1da177e4 1194{
c659c38b 1195 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1196 int i;
1197
1198 /* Should only read stats if open ? */
c659c38b 1199 tlan_read_and_clear_stats(dev, TLAN_RECORD);
1da177e4 1200
c659c38b
SA		 1201 TLAN_DBG(TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %d\n", dev->name,
1202 priv->rx_eoc_count);
1203 TLAN_DBG(TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %d\n", dev->name,
1204 priv->tx_busy_count);
1205 if (debug & TLAN_DEBUG_GNRL) {
1206 tlan_print_dio(dev->base_addr);
1207 tlan_phy_print(dev);
1da177e4 1208 }
c659c38b
SA		 1209 if (debug & TLAN_DEBUG_LIST) {
1210 for (i = 0; i < TLAN_NUM_RX_LISTS; i++)
1211 tlan_print_list(priv->rx_list + i, "RX", i);
1212 for (i = 0; i < TLAN_NUM_TX_LISTS; i++)
1213 tlan_print_list(priv->tx_list + i, "TX", i);
1da177e4 1214 }
6aa20a22 1215
f8f31544 1216 return &dev->stats;
1da177e4 1217
c659c38b 1218}
1da177e4
LT		 1219
1220
1221
1222
c659c38b
SA		 1223/***************************************************************
1224 * tlan_set_multicast_list
1225 *
1226 * Returns:
1227 * Nothing
1228 * Parms:
1229 * dev The device structure to set the
1230 * multicast list for.
1231 *
1232 * This function sets the TLAN adaptor to various receive
1233 * modes. If the IFF_PROMISC flag is set, promiscuous
1234 * mode is acitviated. Otherwise, promiscuous mode is
1235 * turned off. If the IFF_ALLMULTI flag is set, then
1236 * the hash table is set to receive all group addresses.
1237 * Otherwise, the first three multicast addresses are
1238 * stored in AREG_1-3, and the rest are selected via the
1239 * hash table, as necessary.
1240 *
1241 **************************************************************/
1da177e4 1242
c659c38b 1243static void tlan_set_multicast_list(struct net_device *dev)
6aa20a22 1244{
22bedad3 1245 struct netdev_hw_addr *ha;
1da177e4
LT		 1246 u32 hash1 = 0;
1247 u32 hash2 = 0;
1248 int i;
1249 u32 offset;
1250 u8 tmp;
1251
c659c38b
SA		 1252 if (dev->flags & IFF_PROMISC) {
1253 tmp = tlan_dio_read8(dev->base_addr, TLAN_NET_CMD);
1254 tlan_dio_write8(dev->base_addr,
1255 TLAN_NET_CMD, tmp | TLAN_NET_CMD_CAF);
1da177e4 1256 } else {
c659c38b
SA		 1257 tmp = tlan_dio_read8(dev->base_addr, TLAN_NET_CMD);
1258 tlan_dio_write8(dev->base_addr,
1259 TLAN_NET_CMD, tmp & ~TLAN_NET_CMD_CAF);
1260 if (dev->flags & IFF_ALLMULTI) {
1261 for (i = 0; i < 3; i++)
1262 tlan_set_mac(dev, i + 1, NULL);
1263 tlan_dio_write32(dev->base_addr, TLAN_HASH_1,
1264 0xffffffff);
1265 tlan_dio_write32(dev->base_addr, TLAN_HASH_2,
1266 0xffffffff);
1da177e4 1267 } else {
567ec874 1268 i = 0;
22bedad3 1269 netdev_for_each_mc_addr(ha, dev) {
c659c38b
SA		 1270 if (i < 3) {
1271 tlan_set_mac(dev, i + 1,
22bedad3 1272 (char *) &ha->addr);
1da177e4 1273 } else {
c659c38b
SA		 1274 offset =
1275 tlan_hash_func((u8 *)&ha->addr);
1276 if (offset < 32)
1277 hash1 |= (1 << offset);
1da177e4 1278 else
c659c38b 1279 hash2 |= (1 << (offset - 32));
1da177e4 1280 }
567ec874 1281 i++;
1da177e4 1282 }
c659c38b
SA		 1283 for ( ; i < 3; i++)
1284 tlan_set_mac(dev, i + 1, NULL);
1285 tlan_dio_write32(dev->base_addr, TLAN_HASH_1, hash1);
1286 tlan_dio_write32(dev->base_addr, TLAN_HASH_2, hash2);
1da177e4
LT		 1287 }
1288 }
1289
c659c38b 1290}
1da177e4
LT		 1291
1292
1293
1294/*****************************************************************************
1295******************************************************************************
1296
c659c38b 1297ThunderLAN driver interrupt vectors and table
1da177e4 1298
c659c38b
SA		 1299please see chap. 4, "Interrupt Handling" of the "ThunderLAN
1300Programmer's Guide" for more informations on handling interrupts
1301generated by TLAN based adapters.
1da177e4
LT		 1302
1303******************************************************************************
1304*****************************************************************************/
1305
1306
1da177e4
LT		 1307
1308
c659c38b
SA		 1309/***************************************************************
1310 * tlan_handle_tx_eof
1311 *
1312 * Returns:
1313 * 1
1314 * Parms:
1315 * dev Device assigned the IRQ that was
1316 * raised.
1317 * host_int The contents of the HOST_INT
1318 * port.
1319 *
1320 * This function handles Tx EOF interrupts which are raised
1321 * by the adapter when it has completed sending the
1322 * contents of a buffer. If detemines which list/buffer
1323 * was completed and resets it. If the buffer was the last
1324 * in the channel (EOC), then the function checks to see if
1325 * another buffer is ready to send, and if so, sends a Tx
1326 * Go command. Finally, the driver activates/continues the
1327 * activity LED.
1328 *
1329 **************************************************************/
1330
1331static u32 tlan_handle_tx_eof(struct net_device *dev, u16 host_int)
1da177e4 1332{
c659c38b 1333 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1334 int eoc = 0;
c659c38b 1335 struct tlan_list *head_list;
1da177e4
LT		 1336 dma_addr_t head_list_phys;
1337 u32 ack = 0;
c659c38b 1338 u16 tmp_c_stat;
6aa20a22 1339
c659c38b
SA		 1340 TLAN_DBG(TLAN_DEBUG_TX,
1341 "TRANSMIT: Handling TX EOF (Head=%d Tail=%d)\n",
1342 priv->tx_head, priv->tx_tail);
1343 head_list = priv->tx_list + priv->tx_head;
1da177e4 1344
c659c38b
SA		 1345 while (((tmp_c_stat = head_list->c_stat) & TLAN_CSTAT_FRM_CMP)
1346 && (ack < 255)) {
1347 struct sk_buff *skb = tlan_get_skb(head_list);
5eeabf51 1348
1da177e4 1349 ack++;
c659c38b 1350 pci_unmap_single(priv->pci_dev, head_list->buffer[0].address,
5eeabf51
SA		 1351 max(skb->len,
1352 (unsigned int)TLAN_MIN_FRAME_SIZE),
1353 PCI_DMA_TODEVICE);
1354 dev_kfree_skb_any(skb);
1355 head_list->buffer[8].address = 0;
1356 head_list->buffer[9].address = 0;
6aa20a22 1357
c659c38b 1358 if (tmp_c_stat & TLAN_CSTAT_EOC)
1da177e4 1359 eoc = 1;
6aa20a22 1360
c659c38b 1361 dev->stats.tx_bytes += head_list->frame_size;
1da177e4 1362
c659c38b 1363 head_list->c_stat = TLAN_CSTAT_UNUSED;
6aa20a22 1364 netif_start_queue(dev);
c659c38b
SA		 1365 CIRC_INC(priv->tx_head, TLAN_NUM_TX_LISTS);
1366 head_list = priv->tx_list + priv->tx_head;
1da177e4
LT		 1367 }
1368
1369 if (!ack)
50624aab
JP		 1370 netdev_info(dev,
1371 "Received interrupt for uncompleted TX frame\n");
c659c38b
SA		 1372
1373 if (eoc) {
1374 TLAN_DBG(TLAN_DEBUG_TX,
1375 "TRANSMIT: handling TX EOC (Head=%d Tail=%d)\n",
1376 priv->tx_head, priv->tx_tail);
1377 head_list = priv->tx_list + priv->tx_head;
1378 head_list_phys = priv->tx_list_dma
1379 + sizeof(struct tlan_list)*priv->tx_head;
f45437ef
SA		 1380 if ((head_list->c_stat & TLAN_CSTAT_READY)
1381 == TLAN_CSTAT_READY) {
c659c38b 1382 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4
LT		 1383 ack |= TLAN_HC_GO;
1384 } else {
c659c38b 1385 priv->tx_in_progress = 0;
1da177e4
LT		 1386 }
1387 }
6aa20a22 1388
c659c38b
SA		 1389 if (priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED) {
1390 tlan_dio_write8(dev->base_addr,
1391 TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT);
1392 if (priv->timer.function == NULL) {
1393 priv->timer.function = tlan_timer;
1394 priv->timer.data = (unsigned long) dev;
1395 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
1396 priv->timer_set_at = jiffies;
1397 priv->timer_type = TLAN_TIMER_ACTIVITY;
1398 add_timer(&priv->timer);
1399 } else if (priv->timer_type == TLAN_TIMER_ACTIVITY) {
1400 priv->timer_set_at = jiffies;
1da177e4
LT		 1401 }
1402 }
1403
1404 return ack;
1405
c659c38b 1406}
1da177e4
LT		 1407
1408
1409
1410
c659c38b
SA		 1411/***************************************************************
1412 * TLan_HandleStatOverflow
1413 *
1414 * Returns:
1415 * 1
1416 * Parms:
1417 * dev Device assigned the IRQ that was
1418 * raised.
1419 * host_int The contents of the HOST_INT
1420 * port.
1421 *
1422 * This function handles the Statistics Overflow interrupt
1423 * which means that one or more of the TLAN statistics
1424 * registers has reached 1/2 capacity and needs to be read.
1425 *
1426 **************************************************************/
1da177e4 1427
c659c38b 1428static u32 tlan_handle_stat_overflow(struct net_device *dev, u16 host_int)
1da177e4 1429{
c659c38b 1430 tlan_read_and_clear_stats(dev, TLAN_RECORD);
1da177e4
LT		 1431
1432 return 1;
1433
c659c38b
SA		 1434}
1435
1436
1437
1438
1439/***************************************************************
1440 * TLan_HandleRxEOF
1441 *
1442 * Returns:
1443 * 1
1444 * Parms:
1445 * dev Device assigned the IRQ that was
1446 * raised.
1447 * host_int The contents of the HOST_INT
1448 * port.
1449 *
1450 * This function handles the Rx EOF interrupt which
1451 * indicates a frame has been received by the adapter from
1452 * the net and the frame has been transferred to memory.
1453 * The function determines the bounce buffer the frame has
1454 * been loaded into, creates a new sk_buff big enough to
1455 * hold the frame, and sends it to protocol stack. It
1456 * then resets the used buffer and appends it to the end
1457 * of the list. If the frame was the last in the Rx
1458 * channel (EOC), the function restarts the receive channel
1459 * by sending an Rx Go command to the adapter. Then it
1460 * activates/continues the activity LED.
1461 *
1462 **************************************************************/
1463
1464static u32 tlan_handle_rx_eof(struct net_device *dev, u16 host_int)
1da177e4 1465{
c659c38b 1466 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1467 u32 ack = 0;
1468 int eoc = 0;
c659c38b 1469 struct tlan_list *head_list;
1da177e4 1470 struct sk_buff *skb;
c659c38b
SA		 1471 struct tlan_list *tail_list;
1472 u16 tmp_c_stat;
1da177e4
LT		 1473 dma_addr_t head_list_phys;
1474
c659c38b
SA		 1475 TLAN_DBG(TLAN_DEBUG_RX, "RECEIVE: handling RX EOF (Head=%d Tail=%d)\n",
1476 priv->rx_head, priv->rx_tail);
1477 head_list = priv->rx_list + priv->rx_head;
1478 head_list_phys =
1479 priv->rx_list_dma + sizeof(struct tlan_list)*priv->rx_head;
6aa20a22 1480
c659c38b
SA		 1481 while (((tmp_c_stat = head_list->c_stat) & TLAN_CSTAT_FRM_CMP)
1482 && (ack < 255)) {
1483 dma_addr_t frame_dma = head_list->buffer[0].address;
1484 u32 frame_size = head_list->frame_size;
5eeabf51
SA		 1485 struct sk_buff *new_skb;
1486
1da177e4 1487 ack++;
c659c38b 1488 if (tmp_c_stat & TLAN_CSTAT_EOC)
1da177e4 1489 eoc = 1;
6aa20a22 1490
89d71a66
ED		 1491 new_skb = netdev_alloc_skb_ip_align(dev,
1492 TLAN_MAX_FRAME_SIZE + 5);
c659c38b 1493 if (!new_skb)
5eeabf51 1494 goto drop_and_reuse;
6aa20a22 1495
c659c38b
SA		 1496 skb = tlan_get_skb(head_list);
1497 pci_unmap_single(priv->pci_dev, frame_dma,
5eeabf51 1498 TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
c659c38b 1499 skb_put(skb, frame_size);
1da177e4 1500
c659c38b 1501 dev->stats.rx_bytes += frame_size;
1da177e4 1502
c659c38b
SA		 1503 skb->protocol = eth_type_trans(skb, dev);
1504 netif_rx(skb);
6aa20a22 1505
c659c38b
SA		 1506 head_list->buffer[0].address =
1507 pci_map_single(priv->pci_dev, new_skb->data,
1508 TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
93e16847 1509
c659c38b 1510 tlan_store_skb(head_list, new_skb);
dfc2c0a6 1511drop_and_reuse:
1da177e4 1512 head_list->forward = 0;
c659c38b
SA		 1513 head_list->c_stat = 0;
1514 tail_list = priv->rx_list + priv->rx_tail;
1da177e4
LT		 1515 tail_list->forward = head_list_phys;
1516
c659c38b
SA		 1517 CIRC_INC(priv->rx_head, TLAN_NUM_RX_LISTS);
1518 CIRC_INC(priv->rx_tail, TLAN_NUM_RX_LISTS);
1519 head_list = priv->rx_list + priv->rx_head;
1520 head_list_phys = priv->rx_list_dma
1521 + sizeof(struct tlan_list)*priv->rx_head;
1da177e4
LT		 1522 }
1523
1524 if (!ack)
50624aab
JP		 1525 netdev_info(dev,
1526 "Received interrupt for uncompleted RX frame\n");
c659c38b
SA		 1527
1528
1529 if (eoc) {
1530 TLAN_DBG(TLAN_DEBUG_RX,
1531 "RECEIVE: handling RX EOC (Head=%d Tail=%d)\n",
1532 priv->rx_head, priv->rx_tail);
1533 head_list = priv->rx_list + priv->rx_head;
1534 head_list_phys = priv->rx_list_dma
1535 + sizeof(struct tlan_list)*priv->rx_head;
1536 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4 1537 ack |= TLAN_HC_GO | TLAN_HC_RT;
c659c38b 1538 priv->rx_eoc_count++;
1da177e4
LT		 1539 }
1540
c659c38b
SA		 1541 if (priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED) {
1542 tlan_dio_write8(dev->base_addr,
1543 TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT);
1544 if (priv->timer.function == NULL) {
1545 priv->timer.function = tlan_timer;
1da177e4
LT		 1546 priv->timer.data = (unsigned long) dev;
1547 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
c659c38b
SA		 1548 priv->timer_set_at = jiffies;
1549 priv->timer_type = TLAN_TIMER_ACTIVITY;
1da177e4 1550 add_timer(&priv->timer);
c659c38b
SA		 1551 } else if (priv->timer_type == TLAN_TIMER_ACTIVITY) {
1552 priv->timer_set_at = jiffies;
1da177e4
LT		 1553 }
1554 }
1555
1da177e4
LT		 1556 return ack;
1557
c659c38b 1558}
1da177e4
LT		 1559
1560
1561
1562
c659c38b
SA		 1563/***************************************************************
1564 * tlan_handle_dummy
1565 *
1566 * Returns:
1567 * 1
1568 * Parms:
1569 * dev Device assigned the IRQ that was
1570 * raised.
1571 * host_int The contents of the HOST_INT
1572 * port.
1573 *
1574 * This function handles the Dummy interrupt, which is
1575 * raised whenever a test interrupt is generated by setting
1576 * the Req_Int bit of HOST_CMD to 1.
1577 *
1578 **************************************************************/
1da177e4 1579
c659c38b 1580static u32 tlan_handle_dummy(struct net_device *dev, u16 host_int)
1da177e4 1581{
50624aab 1582 netdev_info(dev, "Test interrupt\n");
1da177e4
LT		 1583 return 1;
1584
c659c38b 1585}
1da177e4
LT		 1586
1587
1588
1589
c659c38b
SA		 1590/***************************************************************
1591 * tlan_handle_tx_eoc
1592 *
1593 * Returns:
1594 * 1
1595 * Parms:
1596 * dev Device assigned the IRQ that was
1597 * raised.
1598 * host_int The contents of the HOST_INT
1599 * port.
1600 *
1601 * This driver is structured to determine EOC occurrences by
1602 * reading the CSTAT member of the list structure. Tx EOC
1603 * interrupts are disabled via the DIO INTDIS register.
1604 * However, TLAN chips before revision 3.0 didn't have this
1605 * functionality, so process EOC events if this is the
1606 * case.
1607 *
1608 **************************************************************/
1da177e4 1609
c659c38b 1610static u32 tlan_handle_tx_eoc(struct net_device *dev, u16 host_int)
1da177e4 1611{
c659c38b
SA		 1612 struct tlan_priv *priv = netdev_priv(dev);
1613 struct tlan_list *head_list;
1da177e4
LT		 1614 dma_addr_t head_list_phys;
1615 u32 ack = 1;
6aa20a22 1616
1da177e4 1617 host_int = 0;
c659c38b
SA		 1618 if (priv->tlan_rev < 0x30) {
1619 TLAN_DBG(TLAN_DEBUG_TX,
1620 "TRANSMIT: handling TX EOC (Head=%d Tail=%d) -- IRQ\n",
1621 priv->tx_head, priv->tx_tail);
1622 head_list = priv->tx_list + priv->tx_head;
1623 head_list_phys = priv->tx_list_dma
1624 + sizeof(struct tlan_list)*priv->tx_head;
f45437ef
SA		 1625 if ((head_list->c_stat & TLAN_CSTAT_READY)
1626 == TLAN_CSTAT_READY) {
1da177e4 1627 netif_stop_queue(dev);
c659c38b 1628 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4
LT		 1629 ack |= TLAN_HC_GO;
1630 } else {
c659c38b 1631 priv->tx_in_progress = 0;
1da177e4
LT		 1632 }
1633 }
1634
1635 return ack;
1636
c659c38b 1637}
1da177e4
LT		 1638
1639
1640
1641
c659c38b
SA		 1642/***************************************************************
1643 * tlan_handle_status_check
1644 *
1645 * Returns:
1646 * 0 if Adapter check, 1 if Network Status check.
1647 * Parms:
1648 * dev Device assigned the IRQ that was
1649 * raised.
1650 * host_int The contents of the HOST_INT
1651 * port.
1652 *
1653 * This function handles Adapter Check/Network Status
1654 * interrupts generated by the adapter. It checks the
1655 * vector in the HOST_INT register to determine if it is
1656 * an Adapter Check interrupt. If so, it resets the
1657 * adapter. Otherwise it clears the status registers
1658 * and services the PHY.
1659 *
1660 **************************************************************/
1da177e4 1661
c659c38b 1662static u32 tlan_handle_status_check(struct net_device *dev, u16 host_int)
6aa20a22 1663{
c659c38b 1664 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1665 u32 ack;
1666 u32 error;
1667 u8 net_sts;
1668 u32 phy;
1669 u16 tlphy_ctl;
1670 u16 tlphy_sts;
6aa20a22 1671
1da177e4 1672 ack = 1;
c659c38b
SA		 1673 if (host_int & TLAN_HI_IV_MASK) {
1674 netif_stop_queue(dev);
1675 error = inl(dev->base_addr + TLAN_CH_PARM);
50624aab 1676 netdev_info(dev, "Adaptor Error = 0x%x\n", error);
c659c38b
SA		 1677 tlan_read_and_clear_stats(dev, TLAN_RECORD);
1678 outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD);
1da177e4
LT		 1679
1680 schedule_work(&priv->tlan_tqueue);
1681
1682 netif_wake_queue(dev);
1683 ack = 0;
1684 } else {
c659c38b
SA		 1685 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Status Check\n", dev->name);
1686 phy = priv->phy[priv->phy_num];
1687
1688 net_sts = tlan_dio_read8(dev->base_addr, TLAN_NET_STS);
1689 if (net_sts) {
1690 tlan_dio_write8(dev->base_addr, TLAN_NET_STS, net_sts);
1691 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Net_Sts = %x\n",
1692 dev->name, (unsigned) net_sts);
1da177e4 1693 }
c659c38b
SA		 1694 if ((net_sts & TLAN_NET_STS_MIRQ) && (priv->phy_num == 0)) {
1695 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_STS, &tlphy_sts);
1696 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl);
1697 if (!(tlphy_sts & TLAN_TS_POLOK) &&
1698 !(tlphy_ctl & TLAN_TC_SWAPOL)) {
1699 tlphy_ctl |= TLAN_TC_SWAPOL;
1700 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL,
1701 tlphy_ctl);
1702 } else if ((tlphy_sts & TLAN_TS_POLOK) &&
1703 (tlphy_ctl & TLAN_TC_SWAPOL)) {
1704 tlphy_ctl &= ~TLAN_TC_SWAPOL;
1705 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL,
1706 tlphy_ctl);
1da177e4 1707 }
c659c38b
SA		 1708
1709 if (debug)
1710 tlan_phy_print(dev);
1da177e4
LT		 1711 }
1712 }
1713
1714 return ack;
1715
c659c38b 1716}
1da177e4
LT		 1717
1718
1719
1720
c659c38b
SA		 1721/***************************************************************
1722 * tlan_handle_rx_eoc
1723 *
1724 * Returns:
1725 * 1
1726 * Parms:
1727 * dev Device assigned the IRQ that was
1728 * raised.
1729 * host_int The contents of the HOST_INT
1730 * port.
1731 *
1732 * This driver is structured to determine EOC occurrences by
1733 * reading the CSTAT member of the list structure. Rx EOC
1734 * interrupts are disabled via the DIO INTDIS register.
1735 * However, TLAN chips before revision 3.0 didn't have this
1736 * CSTAT member or a INTDIS register, so if this chip is
1737 * pre-3.0, process EOC interrupts normally.
1738 *
1739 **************************************************************/
1da177e4 1740
c659c38b 1741static u32 tlan_handle_rx_eoc(struct net_device *dev, u16 host_int)
1da177e4 1742{
c659c38b 1743 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1744 dma_addr_t head_list_phys;
1745 u32 ack = 1;
1746
c659c38b
SA		 1747 if (priv->tlan_rev < 0x30) {
1748 TLAN_DBG(TLAN_DEBUG_RX,
1749 "RECEIVE: Handling RX EOC (head=%d tail=%d) -- IRQ\n",
1750 priv->rx_head, priv->rx_tail);
1751 head_list_phys = priv->rx_list_dma
1752 + sizeof(struct tlan_list)*priv->rx_head;
1753 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4 1754 ack |= TLAN_HC_GO | TLAN_HC_RT;
c659c38b 1755 priv->rx_eoc_count++;
1da177e4
LT		 1756 }
1757
1758 return ack;
1759
c659c38b 1760}
1da177e4
LT		 1761
1762
1763
1764
1765/*****************************************************************************
1766******************************************************************************
1767
c659c38b 1768ThunderLAN driver timer function
1da177e4
LT		 1769
1770******************************************************************************
1771*****************************************************************************/
1772
1773
c659c38b
SA		 1774/***************************************************************
1775 * tlan_timer
1776 *
1777 * Returns:
1778 * Nothing
1779 * Parms:
1780 * data A value given to add timer when
1781 * add_timer was called.
1782 *
1783 * This function handles timed functionality for the
1784 * TLAN driver. The two current timer uses are for
1785 * delaying for autonegotionation and driving the ACT LED.
1786 * - Autonegotiation requires being allowed about
1787 * 2 1/2 seconds before attempting to transmit a
1788 * packet. It would be a very bad thing to hang
1789 * the kernel this long, so the driver doesn't
1790 * allow transmission 'til after this time, for
1791 * certain PHYs. It would be much nicer if all
1792 * PHYs were interrupt-capable like the internal
1793 * PHY.
1794 * - The ACT LED, which shows adapter activity, is
1795 * driven by the driver, and so must be left on
1796 * for a short period to power up the LED so it
1797 * can be seen. This delay can be changed by
1798 * changing the TLAN_TIMER_ACT_DELAY in tlan.h,
1799 * if desired. 100 ms produces a slightly
1800 * sluggish response.
1801 *
1802 **************************************************************/
1803
1804static void tlan_timer(unsigned long data)
1da177e4
LT		 1805{
1806 struct net_device *dev = (struct net_device *) data;
c659c38b 1807 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1808 u32 elapsed;
1809 unsigned long flags = 0;
1810
1811 priv->timer.function = NULL;
1812
c659c38b 1813 switch (priv->timer_type) {
6aa20a22 1814#ifdef MONITOR
c659c38b
SA		 1815 case TLAN_TIMER_LINK_BEAT:
1816 tlan_phy_monitor(dev);
1817 break;
1da177e4 1818#endif
c659c38b
SA		 1819 case TLAN_TIMER_PHY_PDOWN:
1820 tlan_phy_power_down(dev);
1821 break;
1822 case TLAN_TIMER_PHY_PUP:
1823 tlan_phy_power_up(dev);
1824 break;
1825 case TLAN_TIMER_PHY_RESET:
1826 tlan_phy_reset(dev);
1827 break;
1828 case TLAN_TIMER_PHY_START_LINK:
1829 tlan_phy_start_link(dev);
1830 break;
1831 case TLAN_TIMER_PHY_FINISH_AN:
1832 tlan_phy_finish_auto_neg(dev);
1833 break;
1834 case TLAN_TIMER_FINISH_RESET:
1835 tlan_finish_reset(dev);
1836 break;
1837 case TLAN_TIMER_ACTIVITY:
1838 spin_lock_irqsave(&priv->lock, flags);
1839 if (priv->timer.function == NULL) {
1840 elapsed = jiffies - priv->timer_set_at;
1841 if (elapsed >= TLAN_TIMER_ACT_DELAY) {
1842 tlan_dio_write8(dev->base_addr,
1843 TLAN_LED_REG, TLAN_LED_LINK);
1844 } else {
1845 priv->timer.function = tlan_timer;
1846 priv->timer.expires = priv->timer_set_at
1847 + TLAN_TIMER_ACT_DELAY;
1848 spin_unlock_irqrestore(&priv->lock, flags);
1849 add_timer(&priv->timer);
1850 break;
1da177e4 1851 }
c659c38b
SA		 1852 }
1853 spin_unlock_irqrestore(&priv->lock, flags);
1854 break;
1855 default:
1856 break;
1da177e4
LT		 1857 }
1858
c659c38b 1859}
1da177e4
LT		 1860
1861
1862
1863
1864/*****************************************************************************
1865******************************************************************************
1866
c659c38b 1867ThunderLAN driver adapter related routines
1da177e4
LT		 1868
1869******************************************************************************
1870*****************************************************************************/
1871
1872
c659c38b
SA		 1873/***************************************************************
1874 * tlan_reset_lists
1875 *
1876 * Returns:
1877 * Nothing
1878 * Parms:
1879 * dev The device structure with the list
1880 * stuctures to be reset.
1881 *
1882 * This routine sets the variables associated with managing
1883 * the TLAN lists to their initial values.
1884 *
1885 **************************************************************/
1886
1887static void tlan_reset_lists(struct net_device *dev)
1da177e4 1888{
c659c38b 1889 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1890 int i;
c659c38b 1891 struct tlan_list *list;
1da177e4
LT		 1892 dma_addr_t list_phys;
1893 struct sk_buff *skb;
1da177e4 1894
c659c38b
SA		 1895 priv->tx_head = 0;
1896 priv->tx_tail = 0;
1897 for (i = 0; i < TLAN_NUM_TX_LISTS; i++) {
1898 list = priv->tx_list + i;
1899 list->c_stat = TLAN_CSTAT_UNUSED;
5eeabf51 1900 list->buffer[0].address = 0;
1da177e4
LT		 1901 list->buffer[2].count = 0;
1902 list->buffer[2].address = 0;
1903 list->buffer[8].address = 0;
1904 list->buffer[9].address = 0;
1905 }
1906
c659c38b
SA		 1907 priv->rx_head = 0;
1908 priv->rx_tail = TLAN_NUM_RX_LISTS - 1;
1909 for (i = 0; i < TLAN_NUM_RX_LISTS; i++) {
1910 list = priv->rx_list + i;
1911 list_phys = priv->rx_list_dma + sizeof(struct tlan_list)*i;
1912 list->c_stat = TLAN_CSTAT_READY;
1913 list->frame_size = TLAN_MAX_FRAME_SIZE;
1da177e4 1914 list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER;
89d71a66 1915 skb = netdev_alloc_skb_ip_align(dev, TLAN_MAX_FRAME_SIZE + 5);
c659c38b 1916 if (!skb) {
50624aab 1917 netdev_err(dev, "Out of memory for received data\n");
5eeabf51 1918 break;
1da177e4 1919 }
5eeabf51 1920
c659c38b 1921 list->buffer[0].address = pci_map_single(priv->pci_dev,
5eeabf51
SA		 1922 skb->data,
1923 TLAN_MAX_FRAME_SIZE,
1924 PCI_DMA_FROMDEVICE);
c659c38b 1925 tlan_store_skb(list, skb);
1da177e4
LT		 1926 list->buffer[1].count = 0;
1927 list->buffer[1].address = 0;
c659c38b 1928 list->forward = list_phys + sizeof(struct tlan_list);
9ded65a1
SH		 1929 }
1930
1931 /* in case ran out of memory early, clear bits */
1932 while (i < TLAN_NUM_RX_LISTS) {
c659c38b 1933 tlan_store_skb(priv->rx_list + i, NULL);
9ded65a1 1934 ++i;
1da177e4 1935 }
9ded65a1 1936 list->forward = 0;
1da177e4 1937
c659c38b 1938}
1da177e4
LT		 1939
1940
c659c38b 1941static void tlan_free_lists(struct net_device *dev)
1da177e4 1942{
c659c38b 1943 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1944 int i;
c659c38b 1945 struct tlan_list *list;
1da177e4
LT		 1946 struct sk_buff *skb;
1947
c659c38b
SA		 1948 for (i = 0; i < TLAN_NUM_TX_LISTS; i++) {
1949 list = priv->tx_list + i;
1950 skb = tlan_get_skb(list);
1951 if (skb) {
5eeabf51 1952 pci_unmap_single(
c659c38b 1953 priv->pci_dev,
5eeabf51
SA		 1954 list->buffer[0].address,
1955 max(skb->len,
1956 (unsigned int)TLAN_MIN_FRAME_SIZE),
1957 PCI_DMA_TODEVICE);
c659c38b 1958 dev_kfree_skb_any(skb);
5eeabf51
SA		 1959 list->buffer[8].address = 0;
1960 list->buffer[9].address = 0;
1da177e4 1961 }
5eeabf51 1962 }
1da177e4 1963
c659c38b
SA		 1964 for (i = 0; i < TLAN_NUM_RX_LISTS; i++) {
1965 list = priv->rx_list + i;
1966 skb = tlan_get_skb(list);
1967 if (skb) {
1968 pci_unmap_single(priv->pci_dev,
5eeabf51
SA		 1969 list->buffer[0].address,
1970 TLAN_MAX_FRAME_SIZE,
1971 PCI_DMA_FROMDEVICE);
c659c38b 1972 dev_kfree_skb_any(skb);
5eeabf51
SA		 1973 list->buffer[8].address = 0;
1974 list->buffer[9].address = 0;
1da177e4
LT		 1975 }
1976 }
c659c38b 1977}
1da177e4
LT		 1978
1979
1980
1981
c659c38b
SA		 1982/***************************************************************
1983 * tlan_print_dio
1984 *
1985 * Returns:
1986 * Nothing
1987 * Parms:
1988 * io_base Base IO port of the device of
1989 * which to print DIO registers.
1990 *
1991 * This function prints out all the internal (DIO)
1992 * registers of a TLAN chip.
1993 *
1994 **************************************************************/
1da177e4 1995
c659c38b 1996static void tlan_print_dio(u16 io_base)
1da177e4
LT		 1997{
1998 u32 data0, data1;
1999 int i;
2000
50624aab
JP		 2001 pr_info("Contents of internal registers for io base 0x%04hx\n",
2002 io_base);
2003 pr_info("Off. +0 +4\n");
c659c38b
SA		 2004 for (i = 0; i < 0x4C; i += 8) {
2005 data0 = tlan_dio_read32(io_base, i);
2006 data1 = tlan_dio_read32(io_base, i + 0x4);
50624aab 2007 pr_info("0x%02x 0x%08x 0x%08x\n", i, data0, data1);
1da177e4
LT		 2008 }
2009
c659c38b 2010}
1da177e4
LT		 2011
2012
2013
2014
c659c38b
SA		 2015/***************************************************************
2016 * TLan_PrintList
2017 *
2018 * Returns:
2019 * Nothing
2020 * Parms:
2021 * list A pointer to the struct tlan_list structure to
2022 * be printed.
2023 * type A string to designate type of list,
2024 * "Rx" or "Tx".
2025 * num The index of the list.
2026 *
2027 * This function prints out the contents of the list
2028 * pointed to by the list parameter.
2029 *
2030 **************************************************************/
1da177e4 2031
c659c38b 2032static void tlan_print_list(struct tlan_list *list, char *type, int num)
1da177e4
LT		 2033{
2034 int i;
2035
50624aab
JP		 2036 pr_info("%s List %d at %p\n", type, num, list);
2037 pr_info(" Forward = 0x%08x\n", list->forward);
2038 pr_info(" CSTAT = 0x%04hx\n", list->c_stat);
2039 pr_info(" Frame Size = 0x%04hx\n", list->frame_size);
c659c38b
SA		 2040 /* for (i = 0; i < 10; i++) { */
2041 for (i = 0; i < 2; i++) {
50624aab
JP		 2042 pr_info(" Buffer[%d].count, addr = 0x%08x, 0x%08x\n",
2043 i, list->buffer[i].count, list->buffer[i].address);
1da177e4
LT		 2044 }
2045
c659c38b 2046}
1da177e4
LT		 2047
2048
2049
2050
c659c38b
SA		 2051/***************************************************************
2052 * tlan_read_and_clear_stats
2053 *
2054 * Returns:
2055 * Nothing
2056 * Parms:
2057 * dev Pointer to device structure of adapter
2058 * to which to read stats.
2059 * record Flag indicating whether to add
2060 *
2061 * This functions reads all the internal status registers
2062 * of the TLAN chip, which clears them as a side effect.
2063 * It then either adds the values to the device's status
2064 * struct, or discards them, depending on whether record
2065 * is TLAN_RECORD (!=0) or TLAN_IGNORE (==0).
2066 *
2067 **************************************************************/
1da177e4 2068
c659c38b 2069static void tlan_read_and_clear_stats(struct net_device *dev, int record)
1da177e4 2070{
1da177e4
LT		 2071 u32 tx_good, tx_under;
2072 u32 rx_good, rx_over;
2073 u32 def_tx, crc, code;
2074 u32 multi_col, single_col;
2075 u32 excess_col, late_col, loss;
2076
c659c38b
SA		 2077 outw(TLAN_GOOD_TX_FRMS, dev->base_addr + TLAN_DIO_ADR);
2078 tx_good = inb(dev->base_addr + TLAN_DIO_DATA);
2079 tx_good += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2080 tx_good += inb(dev->base_addr + TLAN_DIO_DATA + 2) << 16;
2081 tx_under = inb(dev->base_addr + TLAN_DIO_DATA + 3);
2082
2083 outw(TLAN_GOOD_RX_FRMS, dev->base_addr + TLAN_DIO_ADR);
2084 rx_good = inb(dev->base_addr + TLAN_DIO_DATA);
2085 rx_good += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2086 rx_good += inb(dev->base_addr + TLAN_DIO_DATA + 2) << 16;
2087 rx_over = inb(dev->base_addr + TLAN_DIO_DATA + 3);
2088
2089 outw(TLAN_DEFERRED_TX, dev->base_addr + TLAN_DIO_ADR);
2090 def_tx = inb(dev->base_addr + TLAN_DIO_DATA);
2091 def_tx += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2092 crc = inb(dev->base_addr + TLAN_DIO_DATA + 2);
2093 code = inb(dev->base_addr + TLAN_DIO_DATA + 3);
2094
2095 outw(TLAN_MULTICOL_FRMS, dev->base_addr + TLAN_DIO_ADR);
2096 multi_col = inb(dev->base_addr + TLAN_DIO_DATA);
2097 multi_col += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2098 single_col = inb(dev->base_addr + TLAN_DIO_DATA + 2);
2099 single_col += inb(dev->base_addr + TLAN_DIO_DATA + 3) << 8;
2100
2101 outw(TLAN_EXCESSCOL_FRMS, dev->base_addr + TLAN_DIO_ADR);
2102 excess_col = inb(dev->base_addr + TLAN_DIO_DATA);
2103 late_col = inb(dev->base_addr + TLAN_DIO_DATA + 1);
2104 loss = inb(dev->base_addr + TLAN_DIO_DATA + 2);
2105
2106 if (record) {
f8f31544
SH		 2107 dev->stats.rx_packets += rx_good;
2108 dev->stats.rx_errors += rx_over + crc + code;
2109 dev->stats.tx_packets += tx_good;
2110 dev->stats.tx_errors += tx_under + loss;
c659c38b
SA		 2111 dev->stats.collisions += multi_col
2112 + single_col + excess_col + late_col;
f8f31544
SH		 2113
2114 dev->stats.rx_over_errors += rx_over;
2115 dev->stats.rx_crc_errors += crc;
2116 dev->stats.rx_frame_errors += code;
2117
2118 dev->stats.tx_aborted_errors += tx_under;
2119 dev->stats.tx_carrier_errors += loss;
1da177e4 2120 }
6aa20a22 2121
c659c38b 2122}
1da177e4
LT		 2123
2124
2125
2126
c659c38b
SA		 2127/***************************************************************
2128 * TLan_Reset
2129 *
2130 * Returns:
2131 * 0
2132 * Parms:
2133 * dev Pointer to device structure of adapter
2134 * to be reset.
2135 *
2136 * This function resets the adapter and it's physical
2137 * device. See Chap. 3, pp. 9-10 of the "ThunderLAN
2138 * Programmer's Guide" for details. The routine tries to
2139 * implement what is detailed there, though adjustments
2140 * have been made.
2141 *
2142 **************************************************************/
1da177e4 2143
98e0f521 2144static void
c659c38b 2145tlan_reset_adapter(struct net_device *dev)
1da177e4 2146{
c659c38b 2147 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2148 int i;
2149 u32 addr;
2150 u32 data;
2151 u8 data8;
2152
c659c38b
SA		 2153 priv->tlan_full_duplex = false;
2154 priv->phy_online = 0;
1da177e4
LT		 2155 netif_carrier_off(dev);
2156
2157/* 1. Assert reset bit. */
2158
2159 data = inl(dev->base_addr + TLAN_HOST_CMD);
2160 data |= TLAN_HC_AD_RST;
2161 outl(data, dev->base_addr + TLAN_HOST_CMD);
6aa20a22 2162
1da177e4
LT		 2163 udelay(1000);
2164
c659c38b 2165/* 2. Turn off interrupts. (Probably isn't necessary) */
1da177e4
LT		 2166
2167 data = inl(dev->base_addr + TLAN_HOST_CMD);
2168 data |= TLAN_HC_INT_OFF;
2169 outl(data, dev->base_addr + TLAN_HOST_CMD);
2170
2171/* 3. Clear AREGs and HASHs. */
2172
c659c38b
SA		 2173 for (i = TLAN_AREG_0; i <= TLAN_HASH_2; i += 4)
2174 tlan_dio_write32(dev->base_addr, (u16) i, 0);
1da177e4
LT		 2175
2176/* 4. Setup NetConfig register. */
2177
2178 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
c659c38b 2179 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, (u16) data);
1da177e4
LT		 2180
2181/* 5. Load Ld_Tmr and Ld_Thr in HOST_CMD. */
2182
c659c38b
SA		 2183 outl(TLAN_HC_LD_TMR | 0x3f, dev->base_addr + TLAN_HOST_CMD);
2184 outl(TLAN_HC_LD_THR | 0x9, dev->base_addr + TLAN_HOST_CMD);
1da177e4
LT		 2185
2186/* 6. Unreset the MII by setting NMRST (in NetSio) to 1. */
2187
c659c38b 2188 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
1da177e4 2189 addr = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
c659c38b 2190 tlan_set_bit(TLAN_NET_SIO_NMRST, addr);
1da177e4
LT		 2191
2192/* 7. Setup the remaining registers. */
2193
c659c38b 2194 if (priv->tlan_rev >= 0x30) {
1da177e4 2195 data8 = TLAN_ID_TX_EOC | TLAN_ID_RX_EOC;
c659c38b 2196 tlan_dio_write8(dev->base_addr, TLAN_INT_DIS, data8);
1da177e4 2197 }
c659c38b 2198 tlan_phy_detect(dev);
1da177e4 2199 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN;
6aa20a22 2200
c659c38b 2201 if (priv->adapter->flags & TLAN_ADAPTER_BIT_RATE_PHY) {
1da177e4 2202 data |= TLAN_NET_CFG_BIT;
c659c38b
SA		 2203 if (priv->aui == 1) {
2204 tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x0a);
2205 } else if (priv->duplex == TLAN_DUPLEX_FULL) {
2206 tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x00);
2207 priv->tlan_full_duplex = true;
1da177e4 2208 } else {
c659c38b 2209 tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x08);
1da177e4
LT		 2210 }
2211 }
2212
c659c38b 2213 if (priv->phy_num == 0)
1da177e4 2214 data |= TLAN_NET_CFG_PHY_EN;
c659c38b 2215 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, (u16) data);
1da177e4 2216
c659c38b
SA		 2217 if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY)
2218 tlan_finish_reset(dev);
2219 else
2220 tlan_phy_power_down(dev);
1da177e4 2221
c659c38b 2222}
1da177e4
LT		 2223
2224
2225
2226
98e0f521 2227static void
c659c38b 2228tlan_finish_reset(struct net_device *dev)
1da177e4 2229{
c659c38b 2230 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2231 u8 data;
2232 u32 phy;
2233 u8 sio;
2234 u16 status;
2235 u16 partner;
2236 u16 tlphy_ctl;
c659c38b 2237 u16 tlphy_par;
1da177e4 2238 u16 tlphy_id1, tlphy_id2;
c659c38b 2239 int i;
1da177e4 2240
c659c38b 2241 phy = priv->phy[priv->phy_num];
1da177e4
LT		 2242
2243 data = TLAN_NET_CMD_NRESET | TLAN_NET_CMD_NWRAP;
c659c38b 2244 if (priv->tlan_full_duplex)
1da177e4 2245 data |= TLAN_NET_CMD_DUPLEX;
c659c38b 2246 tlan_dio_write8(dev->base_addr, TLAN_NET_CMD, data);
6aa20a22 2247 data = TLAN_NET_MASK_MASK4 | TLAN_NET_MASK_MASK5;
c659c38b 2248 if (priv->phy_num == 0)
6aa20a22 2249 data |= TLAN_NET_MASK_MASK7;
c659c38b
SA		 2250 tlan_dio_write8(dev->base_addr, TLAN_NET_MASK, data);
2251 tlan_dio_write16(dev->base_addr, TLAN_MAX_RX, ((1536)+7)&~7);
2252 tlan_mii_read_reg(dev, phy, MII_GEN_ID_HI, &tlphy_id1);
2253 tlan_mii_read_reg(dev, phy, MII_GEN_ID_LO, &tlphy_id2);
6aa20a22 2254
c659c38b
SA		 2255 if ((priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) ||
2256 (priv->aui)) {
1da177e4 2257 status = MII_GS_LINK;
50624aab 2258 netdev_info(dev, "Link forced\n");
1da177e4 2259 } else {
c659c38b
SA		 2260 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2261 udelay(1000);
2262 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2263 if ((status & MII_GS_LINK) &&
2264 /* We only support link info on Nat.Sem. PHY's */
2265 (tlphy_id1 == NAT_SEM_ID1) &&
2266 (tlphy_id2 == NAT_SEM_ID2)) {
2267 tlan_mii_read_reg(dev, phy, MII_AN_LPA, &partner);
2268 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_PAR, &tlphy_par);
2269
50624aab
JP		 2270 netdev_info(dev,
2271 "Link active with %s %uMbps %s-Duplex\n",
2272 !(tlphy_par & TLAN_PHY_AN_EN_STAT)
2273 ? "forced" : "Autonegotiation enabled,",
2274 tlphy_par & TLAN_PHY_SPEED_100
2275 ? 100 : 10,
2276 tlphy_par & TLAN_PHY_DUPLEX_FULL
2277 ? "Full" : "Half");
2278
2279 if (tlphy_par & TLAN_PHY_AN_EN_STAT) {
2280 netdev_info(dev, "Partner capability:");
2281 for (i = 5; i < 10; i++)
2282 if (partner & (1 << i))
2283 pr_cont(" %s", media[i-5]);
2284 pr_cont("\n");
1da177e4
LT		 2285 }
2286
c659c38b
SA		 2287 tlan_dio_write8(dev->base_addr, TLAN_LED_REG,
2288 TLAN_LED_LINK);
6aa20a22 2289#ifdef MONITOR
1da177e4 2290 /* We have link beat..for now anyway */
c659c38b
SA		 2291 priv->link = 1;
2292 /*Enabling link beat monitoring */
2293 tlan_set_timer(dev, (10*HZ), TLAN_TIMER_LINK_BEAT);
6aa20a22 2294#endif
1da177e4 2295 } else if (status & MII_GS_LINK) {
50624aab 2296 netdev_info(dev, "Link active\n");
c659c38b
SA		 2297 tlan_dio_write8(dev->base_addr, TLAN_LED_REG,
2298 TLAN_LED_LINK);
1da177e4
LT		 2299 }
2300 }
2301
c659c38b
SA		 2302 if (priv->phy_num == 0) {
2303 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl);
2304 tlphy_ctl |= TLAN_TC_INTEN;
2305 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, tlphy_ctl);
2306 sio = tlan_dio_read8(dev->base_addr, TLAN_NET_SIO);
2307 sio |= TLAN_NET_SIO_MINTEN;
2308 tlan_dio_write8(dev->base_addr, TLAN_NET_SIO, sio);
2309 }
2310
2311 if (status & MII_GS_LINK) {
2312 tlan_set_mac(dev, 0, dev->dev_addr);
2313 priv->phy_online = 1;
2314 outb((TLAN_HC_INT_ON >> 8), dev->base_addr + TLAN_HOST_CMD + 1);
2315 if (debug >= 1 && debug != TLAN_DEBUG_PROBE)
2316 outb((TLAN_HC_REQ_INT >> 8),
2317 dev->base_addr + TLAN_HOST_CMD + 1);
2318 outl(priv->rx_list_dma, dev->base_addr + TLAN_CH_PARM);
2319 outl(TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD);
1da177e4
LT		 2320 netif_carrier_on(dev);
2321 } else {
50624aab 2322 netdev_info(dev, "Link inactive, will retry in 10 secs...\n");
c659c38b 2323 tlan_set_timer(dev, (10*HZ), TLAN_TIMER_FINISH_RESET);
1da177e4
LT		 2324 return;
2325 }
c659c38b 2326 tlan_set_multicast_list(dev);
1da177e4 2327
c659c38b 2328}
1da177e4
LT		 2329
2330
2331
2332
c659c38b
SA		 2333/***************************************************************
2334 * tlan_set_mac
2335 *
2336 * Returns:
2337 * Nothing
2338 * Parms:
2339 * dev Pointer to device structure of adapter
2340 * on which to change the AREG.
2341 * areg The AREG to set the address in (0 - 3).
2342 * mac A pointer to an array of chars. Each
2343 * element stores one byte of the address.
2344 * IE, it isn't in ascii.
2345 *
2346 * This function transfers a MAC address to one of the
2347 * TLAN AREGs (address registers). The TLAN chip locks
2348 * the register on writing to offset 0 and unlocks the
2349 * register after writing to offset 5. If NULL is passed
2350 * in mac, then the AREG is filled with 0's.
2351 *
2352 **************************************************************/
1da177e4 2353
c659c38b 2354static void tlan_set_mac(struct net_device *dev, int areg, char *mac)
1da177e4
LT		 2355{
2356 int i;
6aa20a22 2357
1da177e4
LT		 2358 areg *= 6;
2359
c659c38b
SA		 2360 if (mac != NULL) {
2361 for (i = 0; i < 6; i++)
2362 tlan_dio_write8(dev->base_addr,
2363 TLAN_AREG_0 + areg + i, mac[i]);
1da177e4 2364 } else {
c659c38b
SA		 2365 for (i = 0; i < 6; i++)
2366 tlan_dio_write8(dev->base_addr,
2367 TLAN_AREG_0 + areg + i, 0);
1da177e4
LT		 2368 }
2369
c659c38b 2370}
1da177e4
LT		 2371
2372
2373
2374
2375/*****************************************************************************
2376******************************************************************************
2377
c659c38b 2378ThunderLAN driver PHY layer routines
1da177e4
LT		 2379
2380******************************************************************************
2381*****************************************************************************/
2382
2383
2384
c659c38b
SA		 2385/*********************************************************************
2386 * tlan_phy_print
2387 *
2388 * Returns:
2389 * Nothing
2390 * Parms:
2391 * dev A pointer to the device structure of the
2392 * TLAN device having the PHYs to be detailed.
2393 *
2394 * This function prints the registers a PHY (aka transceiver).
2395 *
2396 ********************************************************************/
1da177e4 2397
c659c38b 2398static void tlan_phy_print(struct net_device *dev)
1da177e4 2399{
c659c38b 2400 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2401 u16 i, data0, data1, data2, data3, phy;
2402
c659c38b
SA		 2403 phy = priv->phy[priv->phy_num];
2404
2405 if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) {
50624aab 2406 netdev_info(dev, "Unmanaged PHY\n");
c659c38b 2407 } else if (phy <= TLAN_PHY_MAX_ADDR) {
50624aab
JP		 2408 netdev_info(dev, "PHY 0x%02x\n", phy);
2409 pr_info(" Off. +0 +1 +2 +3\n");
c659c38b 2410 for (i = 0; i < 0x20; i += 4) {
c659c38b 2411 tlan_mii_read_reg(dev, phy, i, &data0);
c659c38b 2412 tlan_mii_read_reg(dev, phy, i + 1, &data1);
c659c38b 2413 tlan_mii_read_reg(dev, phy, i + 2, &data2);
c659c38b 2414 tlan_mii_read_reg(dev, phy, i + 3, &data3);
50624aab
JP		 2415 pr_info(" 0x%02x 0x%04hx 0x%04hx 0x%04hx 0x%04hx\n",
2416 i, data0, data1, data2, data3);
1da177e4
LT		 2417 }
2418 } else {
50624aab 2419 netdev_info(dev, "Invalid PHY\n");
1da177e4
LT		 2420 }
2421
c659c38b 2422}
1da177e4
LT		 2423
2424
2425
2426
c659c38b
SA		 2427/*********************************************************************
2428 * tlan_phy_detect
2429 *
2430 * Returns:
2431 * Nothing
2432 * Parms:
2433 * dev A pointer to the device structure of the adapter
2434 * for which the PHY needs determined.
2435 *
2436 * So far I've found that adapters which have external PHYs
2437 * may also use the internal PHY for part of the functionality.
2438 * (eg, AUI/Thinnet). This function finds out if this TLAN
2439 * chip has an internal PHY, and then finds the first external
2440 * PHY (starting from address 0) if it exists).
2441 *
2442 ********************************************************************/
1da177e4 2443
c659c38b 2444static void tlan_phy_detect(struct net_device *dev)
1da177e4 2445{
c659c38b 2446 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2447 u16 control;
2448 u16 hi;
2449 u16 lo;
2450 u32 phy;
2451
c659c38b
SA		 2452 if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) {
2453 priv->phy_num = 0xffff;
1da177e4
LT		 2454 return;
2455 }
2456
c659c38b 2457 tlan_mii_read_reg(dev, TLAN_PHY_MAX_ADDR, MII_GEN_ID_HI, &hi);
6aa20a22 2458
c659c38b 2459 if (hi != 0xffff)
1da177e4 2460 priv->phy[0] = TLAN_PHY_MAX_ADDR;
c659c38b 2461 else
1da177e4 2462 priv->phy[0] = TLAN_PHY_NONE;
1da177e4
LT		 2463
2464 priv->phy[1] = TLAN_PHY_NONE;
c659c38b
SA		 2465 for (phy = 0; phy <= TLAN_PHY_MAX_ADDR; phy++) {
2466 tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &control);
2467 tlan_mii_read_reg(dev, phy, MII_GEN_ID_HI, &hi);
2468 tlan_mii_read_reg(dev, phy, MII_GEN_ID_LO, &lo);
2469 if ((control != 0xffff) ||
2470 (hi != 0xffff) || (lo != 0xffff)) {
2471 TLAN_DBG(TLAN_DEBUG_GNRL,
2472 "PHY found at %02x %04x %04x %04x\n",
2473 phy, control, hi, lo);
2474 if ((priv->phy[1] == TLAN_PHY_NONE) &&
2475 (phy != TLAN_PHY_MAX_ADDR)) {
1da177e4
LT		 2476 priv->phy[1] = phy;
2477 }
2478 }
2479 }
2480
c659c38b
SA		 2481 if (priv->phy[1] != TLAN_PHY_NONE)
2482 priv->phy_num = 1;
2483 else if (priv->phy[0] != TLAN_PHY_NONE)
2484 priv->phy_num = 0;
2485 else
50624aab 2486 netdev_info(dev, "Cannot initialize device, no PHY was found!\n");
1da177e4 2487
c659c38b 2488}
1da177e4
LT		 2489
2490
2491
2492
c659c38b 2493static void tlan_phy_power_down(struct net_device *dev)
1da177e4 2494{
c659c38b 2495 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2496 u16 value;
2497
c659c38b 2498 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Powering down PHY(s).\n", dev->name);
1da177e4 2499 value = MII_GC_PDOWN | MII_GC_LOOPBK | MII_GC_ISOLATE;
c659c38b
SA		 2500 tlan_mii_sync(dev->base_addr);
2501 tlan_mii_write_reg(dev, priv->phy[priv->phy_num], MII_GEN_CTL, value);
2502 if ((priv->phy_num == 0) &&
2503 (priv->phy[1] != TLAN_PHY_NONE) &&
2504 (!(priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10))) {
2505 tlan_mii_sync(dev->base_addr);
2506 tlan_mii_write_reg(dev, priv->phy[1], MII_GEN_CTL, value);
1da177e4
LT		 2507 }
2508
2509 /* Wait for 50 ms and powerup
2510 * This is abitrary. It is intended to make sure the
2511 * transceiver settles.
2512 */
c659c38b 2513 tlan_set_timer(dev, (HZ/20), TLAN_TIMER_PHY_PUP);
1da177e4 2514
c659c38b 2515}
1da177e4
LT		 2516
2517
2518
2519
c659c38b 2520static void tlan_phy_power_up(struct net_device *dev)
1da177e4 2521{
c659c38b 2522 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2523 u16 value;
2524
c659c38b
SA		 2525 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Powering up PHY.\n", dev->name);
2526 tlan_mii_sync(dev->base_addr);
1da177e4 2527 value = MII_GC_LOOPBK;
c659c38b
SA		 2528 tlan_mii_write_reg(dev, priv->phy[priv->phy_num], MII_GEN_CTL, value);
2529 tlan_mii_sync(dev->base_addr);
1da177e4
LT		 2530 /* Wait for 500 ms and reset the
2531 * transceiver. The TLAN docs say both 50 ms and
2532 * 500 ms, so do the longer, just in case.
2533 */
c659c38b 2534 tlan_set_timer(dev, (HZ/20), TLAN_TIMER_PHY_RESET);
1da177e4 2535
c659c38b 2536}
1da177e4
LT		 2537
2538
2539
2540
c659c38b 2541static void tlan_phy_reset(struct net_device *dev)
1da177e4 2542{
c659c38b 2543 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2544 u16 phy;
2545 u16 value;
2546
c659c38b 2547 phy = priv->phy[priv->phy_num];
1da177e4 2548
c659c38b
SA		 2549 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Reseting PHY.\n", dev->name);
2550 tlan_mii_sync(dev->base_addr);
1da177e4 2551 value = MII_GC_LOOPBK | MII_GC_RESET;
c659c38b
SA		 2552 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, value);
2553 tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &value);
2554 while (value & MII_GC_RESET)
2555 tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &value);
1da177e4
LT		 2556
2557 /* Wait for 500 ms and initialize.
2558 * I don't remember why I wait this long.
2559 * I've changed this to 50ms, as it seems long enough.
2560 */
c659c38b 2561 tlan_set_timer(dev, (HZ/20), TLAN_TIMER_PHY_START_LINK);
1da177e4 2562
c659c38b 2563}
1da177e4
LT		 2564
2565
2566
2567
c659c38b 2568static void tlan_phy_start_link(struct net_device *dev)
1da177e4 2569{
c659c38b 2570 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2571 u16 ability;
2572 u16 control;
2573 u16 data;
2574 u16 phy;
2575 u16 status;
2576 u16 tctl;
2577
c659c38b
SA		 2578 phy = priv->phy[priv->phy_num];
2579 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Trying to activate link.\n", dev->name);
2580 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2581 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &ability);
1da177e4 2582
c659c38b
SA		 2583 if ((status & MII_GS_AUTONEG) &&
2584 (!priv->aui)) {
1da177e4 2585 ability = status >> 11;
c659c38b
SA		 2586 if (priv->speed == TLAN_SPEED_10 &&
2587 priv->duplex == TLAN_DUPLEX_HALF) {
2588 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x0000);
2589 } else if (priv->speed == TLAN_SPEED_10 &&
2590 priv->duplex == TLAN_DUPLEX_FULL) {
2591 priv->tlan_full_duplex = true;
2592 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x0100);
2593 } else if (priv->speed == TLAN_SPEED_100 &&
2594 priv->duplex == TLAN_DUPLEX_HALF) {
2595 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x2000);
2596 } else if (priv->speed == TLAN_SPEED_100 &&
2597 priv->duplex == TLAN_DUPLEX_FULL) {
2598 priv->tlan_full_duplex = true;
2599 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x2100);
1da177e4 2600 } else {
6aa20a22 2601
1da177e4 2602 /* Set Auto-Neg advertisement */
c659c38b
SA		 2603 tlan_mii_write_reg(dev, phy, MII_AN_ADV,
2604 (ability << 5) | 1);
1da177e4 2605 /* Enablee Auto-Neg */
c659c38b 2606 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x1000);
1da177e4 2607 /* Restart Auto-Neg */
c659c38b 2608 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x1200);
1da177e4 2609 /* Wait for 4 sec for autonegotiation
c659c38b
SA		 2610 * to complete. The max spec time is less than this
2611 * but the card need additional time to start AN.
2612 * .5 sec should be plenty extra.
2613 */
50624aab 2614 netdev_info(dev, "Starting autonegotiation\n");
c659c38b 2615 tlan_set_timer(dev, (2*HZ), TLAN_TIMER_PHY_FINISH_AN);
1da177e4
LT		 2616 return;
2617 }
6aa20a22
JG		 2618
2619 }
2620
c659c38b
SA		 2621 if ((priv->aui) && (priv->phy_num != 0)) {
2622 priv->phy_num = 0;
2623 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN
2624 | TLAN_NET_CFG_PHY_EN;
2625 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, data);
2626 tlan_set_timer(dev, (40*HZ/1000), TLAN_TIMER_PHY_PDOWN);
1da177e4 2627 return;
c659c38b 2628 } else if (priv->phy_num == 0) {
1da177e4 2629 control = 0;
c659c38b
SA		 2630 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tctl);
2631 if (priv->aui) {
2632 tctl |= TLAN_TC_AUISEL;
6aa20a22 2633 } else {
c659c38b
SA		 2634 tctl &= ~TLAN_TC_AUISEL;
2635 if (priv->duplex == TLAN_DUPLEX_FULL) {
1da177e4 2636 control |= MII_GC_DUPLEX;
c659c38b 2637 priv->tlan_full_duplex = true;
1da177e4 2638 }
c659c38b 2639 if (priv->speed == TLAN_SPEED_100)
1da177e4 2640 control |= MII_GC_SPEEDSEL;
1da177e4 2641 }
c659c38b
SA		 2642 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, control);
2643 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, tctl);
1da177e4
LT		 2644 }
2645
2646 /* Wait for 2 sec to give the transceiver time
2647 * to establish link.
2648 */
c659c38b 2649 tlan_set_timer(dev, (4*HZ), TLAN_TIMER_FINISH_RESET);
1da177e4 2650
c659c38b 2651}
1da177e4
LT		 2652
2653
2654
2655
c659c38b 2656static void tlan_phy_finish_auto_neg(struct net_device *dev)
1da177e4 2657{
c659c38b 2658 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2659 u16 an_adv;
2660 u16 an_lpa;
2661 u16 data;
2662 u16 mode;
2663 u16 phy;
2664 u16 status;
6aa20a22 2665
c659c38b 2666 phy = priv->phy[priv->phy_num];
1da177e4 2667
c659c38b
SA		 2668 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2669 udelay(1000);
2670 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
1da177e4 2671
c659c38b 2672 if (!(status & MII_GS_AUTOCMPLT)) {
1da177e4
LT		 2673 /* Wait for 8 sec to give the process
2674 * more time. Perhaps we should fail after a while.
2675 */
c659c38b 2676 if (!priv->neg_be_verbose++) {
50624aab
JP		 2677 pr_info("Giving autonegotiation more time.\n");
2678 pr_info("Please check that your adapter has\n");
2679 pr_info("been properly connected to a HUB or Switch.\n");
2680 pr_info("Trying to establish link in the background...\n");
c659c38b
SA		 2681 }
2682 tlan_set_timer(dev, (8*HZ), TLAN_TIMER_PHY_FINISH_AN);
1da177e4
LT		 2683 return;
2684 }
2685
50624aab 2686 netdev_info(dev, "Autonegotiation complete\n");
c659c38b
SA		 2687 tlan_mii_read_reg(dev, phy, MII_AN_ADV, &an_adv);
2688 tlan_mii_read_reg(dev, phy, MII_AN_LPA, &an_lpa);
1da177e4 2689 mode = an_adv & an_lpa & 0x03E0;
c659c38b
SA		 2690 if (mode & 0x0100)
2691 priv->tlan_full_duplex = true;
2692 else if (!(mode & 0x0080) && (mode & 0x0040))
2693 priv->tlan_full_duplex = true;
2694
2695 if ((!(mode & 0x0180)) &&
2696 (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10) &&
2697 (priv->phy_num != 0)) {
2698 priv->phy_num = 0;
2699 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN
2700 | TLAN_NET_CFG_PHY_EN;
2701 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, data);
2702 tlan_set_timer(dev, (400*HZ/1000), TLAN_TIMER_PHY_PDOWN);
1da177e4
LT		 2703 return;
2704 }
2705
c659c38b
SA		 2706 if (priv->phy_num == 0) {
2707 if ((priv->duplex == TLAN_DUPLEX_FULL) ||
2708 (an_adv & an_lpa & 0x0040)) {
2709 tlan_mii_write_reg(dev, phy, MII_GEN_CTL,
2710 MII_GC_AUTOENB | MII_GC_DUPLEX);
50624aab 2711 netdev_info(dev, "Starting internal PHY with FULL-DUPLEX\n");
1da177e4 2712 } else {
c659c38b
SA		 2713 tlan_mii_write_reg(dev, phy, MII_GEN_CTL,
2714 MII_GC_AUTOENB);
50624aab 2715 netdev_info(dev, "Starting internal PHY with HALF-DUPLEX\n");
1da177e4
LT		 2716 }
2717 }
2718
2719 /* Wait for 100 ms. No reason in partiticular.
2720 */
c659c38b 2721 tlan_set_timer(dev, (HZ/10), TLAN_TIMER_FINISH_RESET);
6aa20a22 2722
c659c38b 2723}
1da177e4
LT		 2724
2725#ifdef MONITOR
2726
c659c38b
SA		 2727/*********************************************************************
2728 *
2729 * tlan_phy_monitor
2730 *
2731 * Returns:
2732 * None
2733 *
2734 * Params:
2735 * dev The device structure of this device.
2736 *
2737 *
2738 * This function monitors PHY condition by reading the status
2739 * register via the MII bus. This can be used to give info
2740 * about link changes (up/down), and possible switch to alternate
2741 * media.
2742 *
2743 *******************************************************************/
2744
2745void tlan_phy_monitor(struct net_device *dev)
1da177e4 2746{
c659c38b 2747 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2748 u16 phy;
2749 u16 phy_status;
2750
c659c38b 2751 phy = priv->phy[priv->phy_num];
1da177e4 2752
c659c38b
SA		 2753 /* Get PHY status register */
2754 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &phy_status);
1da177e4 2755
c659c38b
SA		 2756 /* Check if link has been lost */
2757 if (!(phy_status & MII_GS_LINK)) {
2758 if (priv->link) {
2759 priv->link = 0;
2760 printk(KERN_DEBUG "TLAN: %s has lost link\n",
2761 dev->name);
2762 netif_carrier_off(dev);
2763 tlan_set_timer(dev, (2*HZ), TLAN_TIMER_LINK_BEAT);
2764 return;
1da177e4
LT		 2765 }
2766 }
2767
c659c38b
SA		 2768 /* Link restablished? */
2769 if ((phy_status & MII_GS_LINK) && !priv->link) {
2770 priv->link = 1;
2771 printk(KERN_DEBUG "TLAN: %s has reestablished link\n",
2772 dev->name);
7d17c1d6 2773 netif_carrier_on(dev);
c659c38b 2774 }
1da177e4
LT		 2775
2776 /* Setup a new monitor */
c659c38b 2777 tlan_set_timer(dev, (2*HZ), TLAN_TIMER_LINK_BEAT);
6aa20a22 2778}
1da177e4
LT		 2779
2780#endif /* MONITOR */
2781
2782
2783/*****************************************************************************
2784******************************************************************************
2785
c659c38b 2786ThunderLAN driver MII routines
1da177e4 2787
c659c38b
SA		 2788these routines are based on the information in chap. 2 of the
2789"ThunderLAN Programmer's Guide", pp. 15-24.
1da177e4
LT		 2790
2791******************************************************************************
2792*****************************************************************************/
2793
2794
c659c38b
SA		 2795/***************************************************************
2796 * tlan_mii_read_reg
2797 *
2798 * Returns:
2799 * false if ack received ok
2800 * true if no ack received or other error
2801 *
2802 * Parms:
2803 * dev The device structure containing
2804 * The io address and interrupt count
2805 * for this device.
2806 * phy The address of the PHY to be queried.
2807 * reg The register whose contents are to be
2808 * retrieved.
2809 * val A pointer to a variable to store the
2810 * retrieved value.
2811 *
2812 * This function uses the TLAN's MII bus to retrieve the contents
2813 * of a given register on a PHY. It sends the appropriate info
2814 * and then reads the 16-bit register value from the MII bus via
2815 * the TLAN SIO register.
2816 *
2817 **************************************************************/
2818
2819static bool
2820tlan_mii_read_reg(struct net_device *dev, u16 phy, u16 reg, u16 *val)
1da177e4
LT		 2821{
2822 u8 nack;
2823 u16 sio, tmp;
c659c38b 2824 u32 i;
37fce430 2825 bool err;
1da177e4 2826 int minten;
c659c38b 2827 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2828 unsigned long flags = 0;
2829
37fce430 2830 err = false;
1da177e4
LT		 2831 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
2832 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
6aa20a22 2833
1da177e4
LT		 2834 if (!in_irq())
2835 spin_lock_irqsave(&priv->lock, flags);
2836
c659c38b 2837 tlan_mii_sync(dev->base_addr);
1da177e4 2838
c659c38b
SA		 2839 minten = tlan_get_bit(TLAN_NET_SIO_MINTEN, sio);
2840 if (minten)
2841 tlan_clear_bit(TLAN_NET_SIO_MINTEN, sio);
1da177e4 2842
c659c38b
SA		 2843 tlan_mii_send_data(dev->base_addr, 0x1, 2); /* start (01b) */
2844 tlan_mii_send_data(dev->base_addr, 0x2, 2); /* read (10b) */
2845 tlan_mii_send_data(dev->base_addr, phy, 5); /* device # */
2846 tlan_mii_send_data(dev->base_addr, reg, 5); /* register # */
1da177e4
LT		 2847
2848
c659c38b 2849 tlan_clear_bit(TLAN_NET_SIO_MTXEN, sio); /* change direction */
1da177e4 2850
c659c38b
SA		 2851 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* clock idle bit */
2852 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
2853 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* wait 300ns */
1da177e4 2854
c659c38b
SA		 2855 nack = tlan_get_bit(TLAN_NET_SIO_MDATA, sio); /* check for ACK */
2856 tlan_set_bit(TLAN_NET_SIO_MCLK, sio); /* finish ACK */
2857 if (nack) { /* no ACK, so fake it */
1da177e4 2858 for (i = 0; i < 16; i++) {
c659c38b
SA		 2859 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2860 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2861 }
2862 tmp = 0xffff;
37fce430 2863 err = true;
1da177e4
LT		 2864 } else { /* ACK, so read data */
2865 for (tmp = 0, i = 0x8000; i; i >>= 1) {
c659c38b
SA		 2866 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2867 if (tlan_get_bit(TLAN_NET_SIO_MDATA, sio))
1da177e4 2868 tmp |= i;
c659c38b 2869 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2870 }
2871 }
2872
2873
c659c38b
SA		 2874 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* idle cycle */
2875 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4 2876
c659c38b
SA		 2877 if (minten)
2878 tlan_set_bit(TLAN_NET_SIO_MINTEN, sio);
1da177e4
LT		 2879
2880 *val = tmp;
6aa20a22 2881
1da177e4
LT		 2882 if (!in_irq())
2883 spin_unlock_irqrestore(&priv->lock, flags);
2884
2885 return err;
2886
c659c38b 2887}
1da177e4
LT		 2888
2889
2890
2891
c659c38b
SA		 2892/***************************************************************
2893 * tlan_mii_send_data
2894 *
2895 * Returns:
2896 * Nothing
2897 * Parms:
2898 * base_port The base IO port of the adapter in
2899 * question.
2900 * dev The address of the PHY to be queried.
2901 * data The value to be placed on the MII bus.
2902 * num_bits The number of bits in data that are to
2903 * be placed on the MII bus.
2904 *
2905 * This function sends on sequence of bits on the MII
2906 * configuration bus.
2907 *
2908 **************************************************************/
1da177e4 2909
c659c38b 2910static void tlan_mii_send_data(u16 base_port, u32 data, unsigned num_bits)
1da177e4
LT		 2911{
2912 u16 sio;
2913 u32 i;
2914
c659c38b 2915 if (num_bits == 0)
1da177e4
LT		 2916 return;
2917
c659c38b 2918 outw(TLAN_NET_SIO, base_port + TLAN_DIO_ADR);
1da177e4 2919 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
c659c38b 2920 tlan_set_bit(TLAN_NET_SIO_MTXEN, sio);
1da177e4 2921
c659c38b
SA		 2922 for (i = (0x1 << (num_bits - 1)); i; i >>= 1) {
2923 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2924 (void) tlan_get_bit(TLAN_NET_SIO_MCLK, sio);
2925 if (data & i)
2926 tlan_set_bit(TLAN_NET_SIO_MDATA, sio);
1da177e4 2927 else
c659c38b
SA		 2928 tlan_clear_bit(TLAN_NET_SIO_MDATA, sio);
2929 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
2930 (void) tlan_get_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2931 }
2932
c659c38b 2933}
1da177e4
LT		 2934
2935
2936
2937
c659c38b
SA		 2938/***************************************************************
2939 * TLan_MiiSync
2940 *
2941 * Returns:
2942 * Nothing
2943 * Parms:
2944 * base_port The base IO port of the adapter in
2945 * question.
2946 *
2947 * This functions syncs all PHYs in terms of the MII configuration
2948 * bus.
2949 *
2950 **************************************************************/
1da177e4 2951
c659c38b 2952static void tlan_mii_sync(u16 base_port)
1da177e4
LT		 2953{
2954 int i;
2955 u16 sio;
2956
c659c38b 2957 outw(TLAN_NET_SIO, base_port + TLAN_DIO_ADR);
1da177e4
LT		 2958 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
2959
c659c38b
SA		 2960 tlan_clear_bit(TLAN_NET_SIO_MTXEN, sio);
2961 for (i = 0; i < 32; i++) {
2962 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2963 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2964 }
2965
c659c38b 2966}
1da177e4
LT		 2967
2968
2969
2970
c659c38b
SA		 2971/***************************************************************
2972 * tlan_mii_write_reg
2973 *
2974 * Returns:
2975 * Nothing
2976 * Parms:
2977 * dev The device structure for the device
2978 * to write to.
2979 * phy The address of the PHY to be written to.
2980 * reg The register whose contents are to be
2981 * written.
2982 * val The value to be written to the register.
2983 *
2984 * This function uses the TLAN's MII bus to write the contents of a
2985 * given register on a PHY. It sends the appropriate info and then
2986 * writes the 16-bit register value from the MII configuration bus
2987 * via the TLAN SIO register.
2988 *
2989 **************************************************************/
1da177e4 2990
c659c38b
SA		 2991static void
2992tlan_mii_write_reg(struct net_device *dev, u16 phy, u16 reg, u16 val)
1da177e4
LT		 2993{
2994 u16 sio;
2995 int minten;
2996 unsigned long flags = 0;
c659c38b 2997 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2998
2999 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
3000 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
6aa20a22 3001
1da177e4
LT		 3002 if (!in_irq())
3003 spin_lock_irqsave(&priv->lock, flags);
3004
c659c38b 3005 tlan_mii_sync(dev->base_addr);
1da177e4 3006
c659c38b
SA		 3007 minten = tlan_get_bit(TLAN_NET_SIO_MINTEN, sio);
3008 if (minten)
3009 tlan_clear_bit(TLAN_NET_SIO_MINTEN, sio);
1da177e4 3010
c659c38b
SA		 3011 tlan_mii_send_data(dev->base_addr, 0x1, 2); /* start (01b) */
3012 tlan_mii_send_data(dev->base_addr, 0x1, 2); /* write (01b) */
3013 tlan_mii_send_data(dev->base_addr, phy, 5); /* device # */
3014 tlan_mii_send_data(dev->base_addr, reg, 5); /* register # */
1da177e4 3015
c659c38b
SA		 3016 tlan_mii_send_data(dev->base_addr, 0x2, 2); /* send ACK */
3017 tlan_mii_send_data(dev->base_addr, val, 16); /* send data */
1da177e4 3018
c659c38b
SA		 3019 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* idle cycle */
3020 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4 3021
c659c38b
SA		 3022 if (minten)
3023 tlan_set_bit(TLAN_NET_SIO_MINTEN, sio);
6aa20a22 3024
1da177e4
LT		 3025 if (!in_irq())
3026 spin_unlock_irqrestore(&priv->lock, flags);
3027
c659c38b 3028}
1da177e4
LT		 3029
3030
3031
3032
3033/*****************************************************************************
3034******************************************************************************
3035
c659c38b 3036ThunderLAN driver eeprom routines
1da177e4 3037
c659c38b
SA		 3038the Compaq netelligent 10 and 10/100 cards use a microchip 24C02A
3039EEPROM. these functions are based on information in microchip's
3040data sheet. I don't know how well this functions will work with
3041other Eeproms.
1da177e4
LT		 3042
3043******************************************************************************
3044*****************************************************************************/
3045
3046
c659c38b
SA		 3047/***************************************************************
3048 * tlan_ee_send_start
3049 *
3050 * Returns:
3051 * Nothing
3052 * Parms:
3053 * io_base The IO port base address for the
3054 * TLAN device with the EEPROM to
3055 * use.
3056 *
3057 * This function sends a start cycle to an EEPROM attached
3058 * to a TLAN chip.
3059 *
3060 **************************************************************/
3061
3062static void tlan_ee_send_start(u16 io_base)
1da177e4
LT		 3063{
3064 u16 sio;
3065
c659c38b 3066 outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
1da177e4
LT		 3067 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3068
c659c38b
SA		 3069 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3070 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
3071 tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
3072 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3073 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
3074
3075}
3076
3077
3078
3079
3080/***************************************************************
3081 * tlan_ee_send_byte
3082 *
3083 * Returns:
3084 * If the correct ack was received, 0, otherwise 1
3085 * Parms: io_base The IO port base address for the
3086 * TLAN device with the EEPROM to
3087 * use.
3088 * data The 8 bits of information to
3089 * send to the EEPROM.
3090 * stop If TLAN_EEPROM_STOP is passed, a
3091 * stop cycle is sent after the
3092 * byte is sent after the ack is
3093 * read.
3094 *
3095 * This function sends a byte on the serial EEPROM line,
3096 * driving the clock to send each bit. The function then
3097 * reverses transmission direction and reads an acknowledge
3098 * bit.
3099 *
3100 **************************************************************/
3101
3102static int tlan_ee_send_byte(u16 io_base, u8 data, int stop)
1da177e4
LT		 3103{
3104 int err;
3105 u8 place;
3106 u16 sio;
3107
c659c38b 3108 outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
1da177e4
LT		 3109 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3110
3111 /* Assume clock is low, tx is enabled; */
c659c38b
SA		 3112 for (place = 0x80; place != 0; place >>= 1) {
3113 if (place & data)
3114 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
1da177e4 3115 else
c659c38b
SA		 3116 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3117 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3118 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
1da177e4 3119 }
c659c38b
SA		 3120 tlan_clear_bit(TLAN_NET_SIO_ETXEN, sio);
3121 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3122 err = tlan_get_bit(TLAN_NET_SIO_EDATA, sio);
3123 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
3124 tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
1da177e4 3125
c659c38b 3126 if ((!err) && stop) {
dfc2c0a6 3127 /* STOP, raise data while clock is high */
c659c38b
SA		 3128 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3129 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3130 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
1da177e4
LT		 3131 }
3132
807540ba 3133 return err;
1da177e4 3134
c659c38b
SA		 3135}
3136
3137
3138
3139
3140/***************************************************************
3141 * tlan_ee_receive_byte
3142 *
3143 * Returns:
3144 * Nothing
3145 * Parms:
3146 * io_base The IO port base address for the
3147 * TLAN device with the EEPROM to
3148 * use.
3149 * data An address to a char to hold the
3150 * data sent from the EEPROM.
3151 * stop If TLAN_EEPROM_STOP is passed, a
3152 * stop cycle is sent after the
3153 * byte is received, and no ack is
3154 * sent.
3155 *
3156 * This function receives 8 bits of data from the EEPROM
3157 * over the serial link. It then sends and ack bit, or no
3158 * ack and a stop bit. This function is used to retrieve
3159 * data after the address of a byte in the EEPROM has been
3160 * sent.
3161 *
3162 **************************************************************/
3163
3164static void tlan_ee_receive_byte(u16 io_base, u8 *data, int stop)
1da177e4
LT		 3165{
3166 u8 place;
3167 u16 sio;
3168
c659c38b 3169 outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
1da177e4
LT		 3170 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3171 *data = 0;
3172
3173 /* Assume clock is low, tx is enabled; */
c659c38b
SA		 3174 tlan_clear_bit(TLAN_NET_SIO_ETXEN, sio);
3175 for (place = 0x80; place; place >>= 1) {
3176 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3177 if (tlan_get_bit(TLAN_NET_SIO_EDATA, sio))
1da177e4 3178 *data |= place;
c659c38b 3179 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
1da177e4
LT		 3180 }
3181
c659c38b
SA		 3182 tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
3183 if (!stop) {
3184 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio); /* ack = 0 */
3185 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3186 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
1da177e4 3187 } else {
c659c38b
SA		 3188 tlan_set_bit(TLAN_NET_SIO_EDATA, sio); /* no ack = 1 (?) */
3189 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3190 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
dfc2c0a6 3191 /* STOP, raise data while clock is high */
c659c38b
SA		 3192 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3193 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3194 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
3195 }
3196
3197}
3198
3199
3200
3201
3202/***************************************************************
3203 * tlan_ee_read_byte
3204 *
3205 * Returns:
3206 * No error = 0, else, the stage at which the error
3207 * occurred.
3208 * Parms:
3209 * io_base The IO port base address for the
3210 * TLAN device with the EEPROM to
3211 * use.
3212 * ee_addr The address of the byte in the
3213 * EEPROM whose contents are to be
3214 * retrieved.
3215 * data An address to a char to hold the
3216 * data obtained from the EEPROM.
3217 *
3218 * This function reads a byte of information from an byte
3219 * cell in the EEPROM.
3220 *
3221 **************************************************************/
3222
3223static int tlan_ee_read_byte(struct net_device *dev, u8 ee_addr, u8 *data)
1da177e4
LT		 3224{
3225 int err;
c659c38b 3226 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 3227 unsigned long flags = 0;
c659c38b 3228 int ret = 0;
1da177e4
LT		 3229
3230 spin_lock_irqsave(&priv->lock, flags);
3231
c659c38b
SA		 3232 tlan_ee_send_start(dev->base_addr);
3233 err = tlan_ee_send_byte(dev->base_addr, 0xa0, TLAN_EEPROM_ACK);
3234 if (err) {
3235 ret = 1;
1da177e4
LT		 3236 goto fail;
3237 }
c659c38b
SA		 3238 err = tlan_ee_send_byte(dev->base_addr, ee_addr, TLAN_EEPROM_ACK);
3239 if (err) {
3240 ret = 2;
1da177e4
LT		 3241 goto fail;
3242 }
c659c38b
SA		 3243 tlan_ee_send_start(dev->base_addr);
3244 err = tlan_ee_send_byte(dev->base_addr, 0xa1, TLAN_EEPROM_ACK);
3245 if (err) {
3246 ret = 3;
1da177e4
LT		 3247 goto fail;
3248 }
c659c38b 3249 tlan_ee_receive_byte(dev->base_addr, data, TLAN_EEPROM_STOP);
1da177e4
LT		 3250fail:
3251 spin_unlock_irqrestore(&priv->lock, flags);
3252
3253 return ret;
3254
c659c38b 3255}
1da177e4
LT		 3256
3257
3258
Linux kernel - Deliverables
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