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Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[deliverable/linux.git] / drivers / net / ethernet / ti / 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 230 addr = tag->buffer[9].address;
da3a9e9e 231 addr |= ((unsigned long) 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
36915876 303static void 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);
1e0a8b13 323 cancel_work_sync(&priv->tlan_tqueue);
6aa20a22 324}
1da177e4 325
fa6d5d4f
SA		 326static void tlan_start(struct net_device *dev)
327{
328 tlan_reset_lists(dev);
329 /* NOTE: It might not be necessary to read the stats before a
330 reset if you don't care what the values are.
331 */
332 tlan_read_and_clear_stats(dev, TLAN_IGNORE);
333 tlan_reset_adapter(dev);
334 netif_wake_queue(dev);
335}
336
337static void tlan_stop(struct net_device *dev)
338{
339 struct tlan_priv *priv = netdev_priv(dev);
340
341 tlan_read_and_clear_stats(dev, TLAN_RECORD);
342 outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD);
343 /* Reset and power down phy */
344 tlan_reset_adapter(dev);
345 if (priv->timer.function != NULL) {
346 del_timer_sync(&priv->timer);
347 priv->timer.function = NULL;
348 }
349}
350
351#ifdef CONFIG_PM
352
353static int tlan_suspend(struct pci_dev *pdev, pm_message_t state)
354{
355 struct net_device *dev = pci_get_drvdata(pdev);
356
357 if (netif_running(dev))
358 tlan_stop(dev);
359
360 netif_device_detach(dev);
361 pci_save_state(pdev);
362 pci_disable_device(pdev);
363 pci_wake_from_d3(pdev, false);
364 pci_set_power_state(pdev, PCI_D3hot);
365
366 return 0;
367}
368
369static int tlan_resume(struct pci_dev *pdev)
370{
371 struct net_device *dev = pci_get_drvdata(pdev);
372
373 pci_set_power_state(pdev, PCI_D0);
374 pci_restore_state(pdev);
1ca01512 375 pci_enable_wake(pdev, PCI_D0, 0);
fa6d5d4f
SA		 376 netif_device_attach(dev);
377
378 if (netif_running(dev))
379 tlan_start(dev);
380
381 return 0;
382}
383
384#else /* CONFIG_PM */
385
386#define tlan_suspend NULL
387#define tlan_resume NULL
388
389#endif /* CONFIG_PM */
390
391
1da177e4
LT		 392static struct pci_driver tlan_driver = {
393 .name = "tlan",
394 .id_table = tlan_pci_tbl,
395 .probe = tlan_init_one,
36915876 396 .remove = tlan_remove_one,
fa6d5d4f
SA		 397 .suspend = tlan_suspend,
398 .resume = tlan_resume,
1da177e4
LT		 399};
400
401static int __init tlan_probe(void)
402{
6c04a515 403 int rc = -ENODEV;
6aa20a22 404
50624aab 405 pr_info("%s", tlan_banner);
6aa20a22 406
1da177e4 407 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n");
6aa20a22 408
1da177e4
LT		 409 /* Use new style PCI probing. Now the kernel will
410 do most of this for us */
6c04a515
LP		 411 rc = pci_register_driver(&tlan_driver);
412
413 if (rc != 0) {
50624aab 414 pr_err("Could not register pci driver\n");
6c04a515
LP		 415 goto err_out_pci_free;
416 }
1da177e4
LT		 417
418 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n");
c659c38b 419 tlan_eisa_probe();
6aa20a22 420
50624aab
JP		 421 pr_info("%d device%s installed, PCI: %d EISA: %d\n",
422 tlan_devices_installed, tlan_devices_installed == 1 ? "" : "s",
423 tlan_have_pci, tlan_have_eisa);
1da177e4 424
c659c38b 425 if (tlan_devices_installed == 0) {
6c04a515
LP		 426 rc = -ENODEV;
427 goto err_out_pci_unreg;
1da177e4
LT		 428 }
429 return 0;
6c04a515
LP		 430
431err_out_pci_unreg:
432 pci_unregister_driver(&tlan_driver);
433err_out_pci_free:
6c04a515 434 return rc;
1da177e4 435}
6aa20a22 436
1da177e4 437
36915876 438static int tlan_init_one(struct pci_dev *pdev,
c659c38b 439 const struct pci_device_id *ent)
1da177e4 440{
c659c38b 441 return tlan_probe1(pdev, -1, -1, 0, ent);
1da177e4
LT		 442}
443
444
445/*
c659c38b
SA		 446***************************************************************
447* tlan_probe1
448*
449* Returns:
450* 0 on success, error code on error
451* Parms:
452* none
453*
454* The name is lower case to fit in with all the rest of
455* the netcard_probe names. This function looks for
456* another TLan based adapter, setting it up with the
457* allocated device struct if one is found.
458* tlan_probe has been ported to the new net API and
459* now allocates its own device structure. This function
460* is also used by modules.
461*
462**************************************************************/
463
1dd06ae8
GKH		 464static int tlan_probe1(struct pci_dev *pdev, long ioaddr, int irq, int rev,
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) {
1da177e4
LT		 489 rc = -ENOMEM;
490 goto err_out_regions;
491 }
1da177e4 492 SET_NETDEV_DEV(dev, &pdev->dev);
6aa20a22 493
1da177e4
LT		 494 priv = netdev_priv(dev);
495
c659c38b 496 priv->pci_dev = pdev;
c4028958 497 priv->dev = dev;
6aa20a22 498
1da177e4
LT		 499 /* Is this a PCI device? */
500 if (pdev) {
c659c38b 501 u32 pci_io_base = 0;
1da177e4
LT		 502
503 priv->adapter = &board_info[ent->driver_data];
504
284901a9 505 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1da177e4 506 if (rc) {
50624aab 507 pr_err("No suitable PCI mapping available\n");
1da177e4
LT		 508 goto err_out_free_dev;
509 }
510
c659c38b 511 for (reg = 0; reg <= 5; reg++) {
1da177e4
LT		 512 if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) {
513 pci_io_base = pci_resource_start(pdev, reg);
c659c38b
SA		 514 TLAN_DBG(TLAN_DEBUG_GNRL,
515 "IO mapping is available at %x.\n",
516 pci_io_base);
1da177e4
LT		 517 break;
518 }
519 }
520 if (!pci_io_base) {
50624aab 521 pr_err("No IO mappings available\n");
1da177e4
LT		 522 rc = -EIO;
523 goto err_out_free_dev;
524 }
6aa20a22 525
1da177e4
LT		 526 dev->base_addr = pci_io_base;
527 dev->irq = pdev->irq;
c659c38b 528 priv->adapter_rev = pdev->revision;
1da177e4
LT		 529 pci_set_master(pdev);
530 pci_set_drvdata(pdev, dev);
531
532 } else { /* EISA card */
533 /* This is a hack. We need to know which board structure
534 * is suited for this adapter */
535 device_id = inw(ioaddr + EISA_ID2);
1da177e4 536 if (device_id == 0x20F1) {
c659c38b
SA		 537 priv->adapter = &board_info[13]; /* NetFlex-3/E */
538 priv->adapter_rev = 23; /* TLAN 2.3 */
1da177e4
LT		 539 } else {
540 priv->adapter = &board_info[14];
c659c38b 541 priv->adapter_rev = 10; /* TLAN 1.0 */
1da177e4
LT		 542 }
543 dev->base_addr = ioaddr;
544 dev->irq = irq;
545 }
546
547 /* Kernel parameters */
548 if (dev->mem_start) {
549 priv->aui = dev->mem_start & 0x01;
dfc2c0a6
SH		 550 priv->duplex = ((dev->mem_start & 0x06) == 0x06) ? 0
551 : (dev->mem_start & 0x06) >> 1;
552 priv->speed = ((dev->mem_start & 0x18) == 0x18) ? 0
553 : (dev->mem_start & 0x18) >> 3;
6aa20a22 554
c659c38b 555 if (priv->speed == 0x1)
1da177e4 556 priv->speed = TLAN_SPEED_10;
c659c38b 557 else if (priv->speed == 0x2)
1da177e4 558 priv->speed = TLAN_SPEED_100;
c659c38b 559
1da177e4
LT		 560 debug = priv->debug = dev->mem_end;
561 } else {
562 priv->aui = aui[boards_found];
563 priv->speed = speed[boards_found];
564 priv->duplex = duplex[boards_found];
565 priv->debug = debug;
566 }
6aa20a22 567
1da177e4
LT		 568 /* This will be used when we get an adapter error from
569 * within our irq handler */
c659c38b 570 INIT_WORK(&priv->tlan_tqueue, tlan_tx_timeout_work);
1da177e4
LT		 571
572 spin_lock_init(&priv->lock);
6aa20a22 573
c659c38b 574 rc = tlan_init(dev);
1da177e4 575 if (rc) {
50624aab 576 pr_err("Could not set up device\n");
1da177e4
LT		 577 goto err_out_free_dev;
578 }
579
580 rc = register_netdev(dev);
581 if (rc) {
50624aab 582 pr_err("Could not register device\n");
1da177e4
LT		 583 goto err_out_uninit;
584 }
585
6aa20a22 586
c659c38b 587 tlan_devices_installed++;
1da177e4 588 boards_found++;
6aa20a22 589
1da177e4
LT		 590 /* pdev is NULL if this is an EISA device */
591 if (pdev)
592 tlan_have_pci++;
593 else {
c659c38b
SA		 594 priv->next_device = tlan_eisa_devices;
595 tlan_eisa_devices = dev;
1da177e4
LT		 596 tlan_have_eisa++;
597 }
6aa20a22 598
50624aab
JP		 599 netdev_info(dev, "irq=%2d, io=%04x, %s, Rev. %d\n",
600 (int)dev->irq,
601 (int)dev->base_addr,
602 priv->adapter->device_label,
603 priv->adapter_rev);
1da177e4
LT		 604 return 0;
605
606err_out_uninit:
c659c38b
SA		 607 pci_free_consistent(priv->pci_dev, priv->dma_size, priv->dma_storage,
608 priv->dma_storage_dma);
1da177e4
LT		 609err_out_free_dev:
610 free_netdev(dev);
611err_out_regions:
612#ifdef CONFIG_PCI
613 if (pdev)
614 pci_release_regions(pdev);
615#endif
616err_out:
617 if (pdev)
618 pci_disable_device(pdev);
619 return rc;
620}
621
622
c659c38b 623static void tlan_eisa_cleanup(void)
1da177e4
LT		 624{
625 struct net_device *dev;
c659c38b 626 struct tlan_priv *priv;
6aa20a22 627
c659c38b
SA		 628 while (tlan_have_eisa) {
629 dev = tlan_eisa_devices;
1da177e4 630 priv = netdev_priv(dev);
c659c38b
SA		 631 if (priv->dma_storage) {
632 pci_free_consistent(priv->pci_dev, priv->dma_size,
633 priv->dma_storage,
634 priv->dma_storage_dma);
1da177e4 635 }
c659c38b
SA		 636 release_region(dev->base_addr, 0x10);
637 unregister_netdev(dev);
638 tlan_eisa_devices = priv->next_device;
639 free_netdev(dev);
1da177e4
LT		 640 tlan_have_eisa--;
641 }
642}
6aa20a22
JG		 643
644
1da177e4
LT		 645static void __exit tlan_exit(void)
646{
647 pci_unregister_driver(&tlan_driver);
648
649 if (tlan_have_eisa)
c659c38b 650 tlan_eisa_cleanup();
1da177e4 651
1da177e4
LT		 652}
653
654
655/* Module loading/unloading */
656module_init(tlan_probe);
657module_exit(tlan_exit);
658
659
660
c659c38b
SA		 661/**************************************************************
662 * tlan_eisa_probe
663 *
664 * Returns: 0 on success, 1 otherwise
665 *
666 * Parms: None
667 *
668 *
669 * This functions probes for EISA devices and calls
670 * TLan_probe1 when one is found.
671 *
672 *************************************************************/
1da177e4 673
c659c38b 674static void __init tlan_eisa_probe(void)
1da177e4 675{
c659c38b
SA		 676 long ioaddr;
677 int rc = -ENODEV;
678 int irq;
1da177e4
LT		 679 u16 device_id;
680
6aa20a22 681 if (!EISA_bus) {
1da177e4
LT		 682 TLAN_DBG(TLAN_DEBUG_PROBE, "No EISA bus present\n");
683 return;
684 }
6aa20a22 685
1da177e4
LT		 686 /* Loop through all slots of the EISA bus */
687 for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) {
6aa20a22 688
c659c38b
SA		 689 TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n",
690 (int) ioaddr + 0xc80, inw(ioaddr + EISA_ID));
691 TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n",
692 (int) ioaddr + 0xc82, inw(ioaddr + EISA_ID2));
1da177e4
LT		 693
694
c659c38b
SA		 695 TLAN_DBG(TLAN_DEBUG_PROBE,
696 "Probing for EISA adapter at IO: 0x%4x : ",
697 (int) ioaddr);
698 if (request_region(ioaddr, 0x10, tlan_signature) == NULL)
1da177e4
LT		 699 goto out;
700
6aa20a22 701 if (inw(ioaddr + EISA_ID) != 0x110E) {
1da177e4
LT		 702 release_region(ioaddr, 0x10);
703 goto out;
704 }
6aa20a22 705
1da177e4 706 device_id = inw(ioaddr + EISA_ID2);
6aa20a22 707 if (device_id != 0x20F1 && device_id != 0x40F1) {
c659c38b 708 release_region(ioaddr, 0x10);
1da177e4
LT		 709 goto out;
710 }
6aa20a22 711
c659c38b
SA		 712 /* check if adapter is enabled */
713 if (inb(ioaddr + EISA_CR) != 0x1) {
714 release_region(ioaddr, 0x10);
1da177e4
LT		 715 goto out2;
716 }
6aa20a22
JG		 717
718 if (debug == 0x10)
50624aab 719 pr_info("Found one\n");
1da177e4
LT		 720
721
722 /* Get irq from board */
c659c38b
SA		 723 switch (inb(ioaddr + 0xcc0)) {
724 case(0x10):
725 irq = 5;
726 break;
727 case(0x20):
728 irq = 9;
729 break;
730 case(0x40):
731 irq = 10;
732 break;
733 case(0x80):
734 irq = 11;
735 break;
736 default:
737 goto out;
6aa20a22
JG		 738 }
739
740
1da177e4 741 /* Setup the newly found eisa adapter */
c659c38b
SA		 742 rc = tlan_probe1(NULL, ioaddr, irq,
743 12, NULL);
1da177e4 744 continue;
6aa20a22 745
c659c38b
SA		 746out:
747 if (debug == 0x10)
50624aab 748 pr_info("None found\n");
c659c38b 749 continue;
1da177e4 750
c659c38b
SA		 751out2:
752 if (debug == 0x10)
50624aab 753 pr_info("Card found but it is not enabled, skipping\n");
c659c38b 754 continue;
6aa20a22 755
1da177e4
LT		 756 }
757
c659c38b 758}
1da177e4
LT		 759
760#ifdef CONFIG_NET_POLL_CONTROLLER
c659c38b 761static void tlan_poll(struct net_device *dev)
1da177e4
LT		 762{
763 disable_irq(dev->irq);
c659c38b 764 tlan_handle_interrupt(dev->irq, dev);
1da177e4
LT		 765 enable_irq(dev->irq);
766}
767#endif
768
c659c38b
SA		 769static const struct net_device_ops tlan_netdev_ops = {
770 .ndo_open = tlan_open,
771 .ndo_stop = tlan_close,
772 .ndo_start_xmit = tlan_start_tx,
773 .ndo_tx_timeout = tlan_tx_timeout,
774 .ndo_get_stats = tlan_get_stats,
afc4b13d 775 .ndo_set_rx_mode = tlan_set_multicast_list,
c659c38b 776 .ndo_do_ioctl = tlan_ioctl,
391c5e6e 777 .ndo_change_mtu = eth_change_mtu,
c659c38b 778 .ndo_set_mac_address = eth_mac_addr,
391c5e6e
SH		 779 .ndo_validate_addr = eth_validate_addr,
780#ifdef CONFIG_NET_POLL_CONTROLLER
c659c38b 781 .ndo_poll_controller = tlan_poll,
391c5e6e
SH		 782#endif
783};
6aa20a22 784
1da177e4
LT		 785
786
c659c38b
SA		 787/***************************************************************
788 * tlan_init
789 *
790 * Returns:
791 * 0 on success, error code otherwise.
792 * Parms:
793 * dev The structure of the device to be
794 * init'ed.
795 *
796 * This function completes the initialization of the
797 * device structure and driver. It reserves the IO
798 * addresses, allocates memory for the lists and bounce
799 * buffers, retrieves the MAC address from the eeprom
800 * and assignes the device's methods.
801 *
802 **************************************************************/
803
804static int tlan_init(struct net_device *dev)
1da177e4
LT		 805{
806 int dma_size;
c659c38b 807 int err;
1da177e4 808 int i;
c659c38b 809 struct tlan_priv *priv;
1da177e4
LT		 810
811 priv = netdev_priv(dev);
6aa20a22 812
c659c38b
SA		 813 dma_size = (TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS)
814 * (sizeof(struct tlan_list));
815 priv->dma_storage = pci_alloc_consistent(priv->pci_dev,
816 dma_size,
817 &priv->dma_storage_dma);
818 priv->dma_size = dma_size;
819
820 if (priv->dma_storage == NULL) {
50624aab 821 pr_err("Could not allocate lists and buffers for %s\n",
c659c38b 822 dev->name);
1da177e4
LT		 823 return -ENOMEM;
824 }
c659c38b
SA		 825 memset(priv->dma_storage, 0, dma_size);
826 priv->rx_list = (struct tlan_list *)
827 ALIGN((unsigned long)priv->dma_storage, 8);
828 priv->rx_list_dma = ALIGN(priv->dma_storage_dma, 8);
829 priv->tx_list = priv->rx_list + TLAN_NUM_RX_LISTS;
830 priv->tx_list_dma =
831 priv->rx_list_dma + sizeof(struct tlan_list)*TLAN_NUM_RX_LISTS;
93e16847 832
1da177e4 833 err = 0;
c659c38b
SA		 834 for (i = 0; i < 6 ; i++)
835 err |= tlan_ee_read_byte(dev,
836 (u8) priv->adapter->addr_ofs + i,
837 (u8 *) &dev->dev_addr[i]);
838 if (err) {
50624aab
JP		 839 pr_err("%s: Error reading MAC from eeprom: %d\n",
840 dev->name, err);
1da177e4
LT		 841 }
842 dev->addr_len = 6;
843
844 netif_carrier_off(dev);
845
846 /* Device methods */
c659c38b 847 dev->netdev_ops = &tlan_netdev_ops;
1da177e4
LT		 848 dev->watchdog_timeo = TX_TIMEOUT;
849
850 return 0;
851
c659c38b 852}
1da177e4
LT		 853
854
855
856
c659c38b
SA		 857/***************************************************************
858 * tlan_open
859 *
860 * Returns:
861 * 0 on success, error code otherwise.
862 * Parms:
863 * dev Structure of device to be opened.
864 *
865 * This routine puts the driver and TLAN adapter in a
866 * state where it is ready to send and receive packets.
867 * It allocates the IRQ, resets and brings the adapter
868 * out of reset, and allows interrupts. It also delays
869 * the startup for autonegotiation or sends a Rx GO
870 * command to the adapter, as appropriate.
871 *
872 **************************************************************/
1da177e4 873
c659c38b 874static int tlan_open(struct net_device *dev)
1da177e4 875{
c659c38b 876 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 877 int err;
6aa20a22 878
c659c38b
SA		 879 priv->tlan_rev = tlan_dio_read8(dev->base_addr, TLAN_DEF_REVISION);
880 err = request_irq(dev->irq, tlan_handle_interrupt, IRQF_SHARED,
881 dev->name, dev);
6aa20a22 882
c659c38b 883 if (err) {
50624aab
JP		 884 netdev_err(dev, "Cannot open because IRQ %d is already in use\n",
885 dev->irq);
1da177e4
LT		 886 return err;
887 }
6aa20a22 888
1da177e4 889 init_timer(&priv->timer);
6aa20a22 890
fa6d5d4f 891 tlan_start(dev);
1da177e4 892
c659c38b
SA		 893 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %x\n",
894 dev->name, priv->tlan_rev);
1da177e4
LT		 895
896 return 0;
897
c659c38b 898}
1da177e4
LT		 899
900
901
c659c38b
SA		 902/**************************************************************
903 * tlan_ioctl
904 *
905 * Returns:
906 * 0 on success, error code otherwise
907 * Params:
908 * dev structure of device to receive ioctl.
909 *
910 * rq ifreq structure to hold userspace data.
911 *
912 * cmd ioctl command.
913 *
914 *
915 *************************************************************/
1da177e4 916
c659c38b 917static int tlan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1da177e4 918{
c659c38b 919 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 920 struct mii_ioctl_data *data = if_mii(rq);
c659c38b 921 u32 phy = priv->phy[priv->phy_num];
6aa20a22 922
c659c38b 923 if (!priv->phy_online)
1da177e4
LT		 924 return -EAGAIN;
925
c659c38b
SA		 926 switch (cmd) {
927 case SIOCGMIIPHY: /* get address of MII PHY in use. */
928 data->phy_id = phy;
1da177e4
LT		 929
930
c659c38b
SA		 931 case SIOCGMIIREG: /* read MII PHY register. */
932 tlan_mii_read_reg(dev, data->phy_id & 0x1f,
933 data->reg_num & 0x1f, &data->val_out);
934 return 0;
6aa20a22 935
1da177e4 936
c659c38b
SA		 937 case SIOCSMIIREG: /* write MII PHY register. */
938 tlan_mii_write_reg(dev, data->phy_id & 0x1f,
939 data->reg_num & 0x1f, data->val_in);
940 return 0;
941 default:
942 return -EOPNOTSUPP;
1da177e4 943 }
c659c38b 944}
1da177e4
LT		 945
946
c659c38b
SA		 947/***************************************************************
948 * tlan_tx_timeout
949 *
950 * Returns: nothing
951 *
952 * Params:
953 * dev structure of device which timed out
954 * during transmit.
955 *
956 **************************************************************/
1da177e4 957
c659c38b 958static void tlan_tx_timeout(struct net_device *dev)
1da177e4 959{
6aa20a22 960
c659c38b 961 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Transmit timed out.\n", dev->name);
6aa20a22 962
1da177e4 963 /* Ok so we timed out, lets see what we can do about it...*/
c659c38b
SA		 964 tlan_free_lists(dev);
965 tlan_reset_lists(dev);
966 tlan_read_and_clear_stats(dev, TLAN_IGNORE);
967 tlan_reset_adapter(dev);
1ae5dc34 968 dev->trans_start = jiffies; /* prevent tx timeout */
c659c38b 969 netif_wake_queue(dev);
1da177e4
LT		 970
971}
6aa20a22 972
1da177e4 973
c659c38b
SA		 974/***************************************************************
975 * tlan_tx_timeout_work
976 *
977 * Returns: nothing
978 *
979 * Params:
980 * work work item of device which timed out
981 *
982 **************************************************************/
c4028958 983
c659c38b 984static void tlan_tx_timeout_work(struct work_struct *work)
c4028958 985{
c659c38b
SA		 986 struct tlan_priv *priv =
987 container_of(work, struct tlan_priv, tlan_tqueue);
c4028958 988
c659c38b 989 tlan_tx_timeout(priv->dev);
c4028958
DH		 990}
991
992
1da177e4 993
c659c38b
SA		 994/***************************************************************
995 * tlan_start_tx
996 *
997 * Returns:
998 * 0 on success, non-zero on failure.
999 * Parms:
1000 * skb A pointer to the sk_buff containing the
1001 * frame to be sent.
1002 * dev The device to send the data on.
1003 *
1004 * This function adds a frame to the Tx list to be sent
1005 * ASAP. First it verifies that the adapter is ready and
1006 * there is room in the queue. Then it sets up the next
1007 * available list, copies the frame to the corresponding
1008 * buffer. If the adapter Tx channel is idle, it gives
1009 * the adapter a Tx Go command on the list, otherwise it
1010 * sets the forward address of the previous list to point
1011 * to this one. Then it frees the sk_buff.
1012 *
1013 **************************************************************/
1014
1015static netdev_tx_t tlan_start_tx(struct sk_buff *skb, struct net_device *dev)
1da177e4 1016{
c659c38b 1017 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1018 dma_addr_t tail_list_phys;
c659c38b 1019 struct tlan_list *tail_list;
1da177e4 1020 unsigned long flags;
8953f128 1021 unsigned int txlen;
1da177e4 1022
c659c38b
SA		 1023 if (!priv->phy_online) {
1024 TLAN_DBG(TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n",
1025 dev->name);
1da177e4 1026 dev_kfree_skb_any(skb);
6ed10654 1027 return NETDEV_TX_OK;
1da177e4
LT		 1028 }
1029
41873e9a 1030 if (skb_padto(skb, TLAN_MIN_FRAME_SIZE))
6ed10654 1031 return NETDEV_TX_OK;
8953f128 1032 txlen = max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE);
41873e9a 1033
c659c38b
SA		 1034 tail_list = priv->tx_list + priv->tx_tail;
1035 tail_list_phys =
1036 priv->tx_list_dma + sizeof(struct tlan_list)*priv->tx_tail;
6aa20a22 1037
c659c38b
SA		 1038 if (tail_list->c_stat != TLAN_CSTAT_UNUSED) {
1039 TLAN_DBG(TLAN_DEBUG_TX,
1040 "TRANSMIT: %s is busy (Head=%d Tail=%d)\n",
1041 dev->name, priv->tx_head, priv->tx_tail);
1da177e4 1042 netif_stop_queue(dev);
c659c38b 1043 priv->tx_busy_count++;
5b548140 1044 return NETDEV_TX_BUSY;
1da177e4
LT		 1045 }
1046
1047 tail_list->forward = 0;
1048
c659c38b 1049 tail_list->buffer[0].address = pci_map_single(priv->pci_dev,
5eeabf51
SA		 1050 skb->data, txlen,
1051 PCI_DMA_TODEVICE);
c659c38b 1052 tlan_store_skb(tail_list, skb);
1da177e4 1053
c659c38b 1054 tail_list->frame_size = (u16) txlen;
8953f128 1055 tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) txlen;
41873e9a
SH		 1056 tail_list->buffer[1].count = 0;
1057 tail_list->buffer[1].address = 0;
1da177e4
LT		 1058
1059 spin_lock_irqsave(&priv->lock, flags);
c659c38b
SA		 1060 tail_list->c_stat = TLAN_CSTAT_READY;
1061 if (!priv->tx_in_progress) {
1062 priv->tx_in_progress = 1;
1063 TLAN_DBG(TLAN_DEBUG_TX,
1064 "TRANSMIT: Starting TX on buffer %d\n",
1065 priv->tx_tail);
1066 outl(tail_list_phys, dev->base_addr + TLAN_CH_PARM);
1067 outl(TLAN_HC_GO, dev->base_addr + TLAN_HOST_CMD);
1da177e4 1068 } else {
c659c38b
SA		 1069 TLAN_DBG(TLAN_DEBUG_TX,
1070 "TRANSMIT: Adding buffer %d to TX channel\n",
1071 priv->tx_tail);
1072 if (priv->tx_tail == 0) {
1073 (priv->tx_list + (TLAN_NUM_TX_LISTS - 1))->forward
dfc2c0a6 1074 = tail_list_phys;
1da177e4 1075 } else {
c659c38b 1076 (priv->tx_list + (priv->tx_tail - 1))->forward
dfc2c0a6 1077 = tail_list_phys;
1da177e4
LT		 1078 }
1079 }
1080 spin_unlock_irqrestore(&priv->lock, flags);
1081
c659c38b 1082 CIRC_INC(priv->tx_tail, TLAN_NUM_TX_LISTS);
1da177e4 1083
6ed10654 1084 return NETDEV_TX_OK;
1da177e4 1085
c659c38b 1086}
1da177e4
LT		 1087
1088
1089
1090
c659c38b
SA		 1091/***************************************************************
1092 * tlan_handle_interrupt
1093 *
1094 * Returns:
1095 * Nothing
1096 * Parms:
1097 * irq The line on which the interrupt
1098 * occurred.
1099 * dev_id A pointer to the device assigned to
1100 * this irq line.
1101 *
1102 * This function handles an interrupt generated by its
1103 * assigned TLAN adapter. The function deactivates
1104 * interrupts on its adapter, records the type of
1105 * interrupt, executes the appropriate subhandler, and
1106 * acknowdges the interrupt to the adapter (thus
1107 * re-enabling adapter interrupts.
1108 *
1109 **************************************************************/
1da177e4 1110
c659c38b 1111static irqreturn_t tlan_handle_interrupt(int irq, void *dev_id)
1da177e4 1112{
a3ccc789 1113 struct net_device *dev = dev_id;
c659c38b 1114 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1115 u16 host_int;
a3ccc789 1116 u16 type;
1da177e4
LT		 1117
1118 spin_lock(&priv->lock);
1119
c659c38b
SA		 1120 host_int = inw(dev->base_addr + TLAN_HOST_INT);
1121 type = (host_int & TLAN_HI_IT_MASK) >> 2;
1122 if (type) {
a3ccc789
SH		 1123 u32 ack;
1124 u32 host_cmd;
1da177e4 1125
c659c38b
SA		 1126 outw(host_int, dev->base_addr + TLAN_HOST_INT);
1127 ack = tlan_int_vector[type](dev, host_int);
1da177e4 1128
c659c38b
SA		 1129 if (ack) {
1130 host_cmd = TLAN_HC_ACK | ack | (type << 18);
1131 outl(host_cmd, dev->base_addr + TLAN_HOST_CMD);
a3ccc789 1132 }
1da177e4
LT		 1133 }
1134
1135 spin_unlock(&priv->lock);
1136
a3ccc789 1137 return IRQ_RETVAL(type);
c659c38b 1138}
1da177e4
LT		 1139
1140
1141
1142
c659c38b
SA		 1143/***************************************************************
1144 * tlan_close
1145 *
1146 * Returns:
1147 * An error code.
1148 * Parms:
1149 * dev The device structure of the device to
1150 * close.
1151 *
1152 * This function shuts down the adapter. It records any
1153 * stats, puts the adapter into reset state, deactivates
1154 * its time as needed, and frees the irq it is using.
1155 *
1156 **************************************************************/
1da177e4 1157
c659c38b 1158static int tlan_close(struct net_device *dev)
1da177e4 1159{
c659c38b 1160 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1161
1da177e4 1162 priv->neg_be_verbose = 0;
fa6d5d4f 1163 tlan_stop(dev);
6aa20a22 1164
c659c38b
SA		 1165 free_irq(dev->irq, dev);
1166 tlan_free_lists(dev);
1167 TLAN_DBG(TLAN_DEBUG_GNRL, "Device %s closed.\n", dev->name);
1da177e4
LT		 1168
1169 return 0;
1170
c659c38b 1171}
1da177e4
LT		 1172
1173
1174
1175
c659c38b
SA		 1176/***************************************************************
1177 * tlan_get_stats
1178 *
1179 * Returns:
1180 * A pointer to the device's statistics structure.
1181 * Parms:
1182 * dev The device structure to return the
1183 * stats for.
1184 *
1185 * This function updates the devices statistics by reading
1186 * the TLAN chip's onboard registers. Then it returns the
1187 * address of the statistics structure.
1188 *
1189 **************************************************************/
1da177e4 1190
c659c38b 1191static struct net_device_stats *tlan_get_stats(struct net_device *dev)
1da177e4 1192{
c659c38b 1193 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1194 int i;
1195
1196 /* Should only read stats if open ? */
c659c38b 1197 tlan_read_and_clear_stats(dev, TLAN_RECORD);
1da177e4 1198
c659c38b
SA		 1199 TLAN_DBG(TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %d\n", dev->name,
1200 priv->rx_eoc_count);
1201 TLAN_DBG(TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %d\n", dev->name,
1202 priv->tx_busy_count);
1203 if (debug & TLAN_DEBUG_GNRL) {
1204 tlan_print_dio(dev->base_addr);
1205 tlan_phy_print(dev);
1da177e4 1206 }
c659c38b
SA		 1207 if (debug & TLAN_DEBUG_LIST) {
1208 for (i = 0; i < TLAN_NUM_RX_LISTS; i++)
1209 tlan_print_list(priv->rx_list + i, "RX", i);
1210 for (i = 0; i < TLAN_NUM_TX_LISTS; i++)
1211 tlan_print_list(priv->tx_list + i, "TX", i);
1da177e4 1212 }
6aa20a22 1213
f8f31544 1214 return &dev->stats;
1da177e4 1215
c659c38b 1216}
1da177e4
LT		 1217
1218
1219
1220
c659c38b
SA		 1221/***************************************************************
1222 * tlan_set_multicast_list
1223 *
1224 * Returns:
1225 * Nothing
1226 * Parms:
1227 * dev The device structure to set the
1228 * multicast list for.
1229 *
1230 * This function sets the TLAN adaptor to various receive
1231 * modes. If the IFF_PROMISC flag is set, promiscuous
1232 * mode is acitviated. Otherwise, promiscuous mode is
1233 * turned off. If the IFF_ALLMULTI flag is set, then
1234 * the hash table is set to receive all group addresses.
1235 * Otherwise, the first three multicast addresses are
1236 * stored in AREG_1-3, and the rest are selected via the
1237 * hash table, as necessary.
1238 *
1239 **************************************************************/
1da177e4 1240
c659c38b 1241static void tlan_set_multicast_list(struct net_device *dev)
6aa20a22 1242{
22bedad3 1243 struct netdev_hw_addr *ha;
1da177e4
LT		 1244 u32 hash1 = 0;
1245 u32 hash2 = 0;
1246 int i;
1247 u32 offset;
1248 u8 tmp;
1249
c659c38b
SA		 1250 if (dev->flags & IFF_PROMISC) {
1251 tmp = tlan_dio_read8(dev->base_addr, TLAN_NET_CMD);
1252 tlan_dio_write8(dev->base_addr,
1253 TLAN_NET_CMD, tmp | TLAN_NET_CMD_CAF);
1da177e4 1254 } else {
c659c38b
SA		 1255 tmp = tlan_dio_read8(dev->base_addr, TLAN_NET_CMD);
1256 tlan_dio_write8(dev->base_addr,
1257 TLAN_NET_CMD, tmp & ~TLAN_NET_CMD_CAF);
1258 if (dev->flags & IFF_ALLMULTI) {
1259 for (i = 0; i < 3; i++)
1260 tlan_set_mac(dev, i + 1, NULL);
1261 tlan_dio_write32(dev->base_addr, TLAN_HASH_1,
1262 0xffffffff);
1263 tlan_dio_write32(dev->base_addr, TLAN_HASH_2,
1264 0xffffffff);
1da177e4 1265 } else {
567ec874 1266 i = 0;
22bedad3 1267 netdev_for_each_mc_addr(ha, dev) {
c659c38b
SA		 1268 if (i < 3) {
1269 tlan_set_mac(dev, i + 1,
22bedad3 1270 (char *) &ha->addr);
1da177e4 1271 } else {
c659c38b
SA		 1272 offset =
1273 tlan_hash_func((u8 *)&ha->addr);
1274 if (offset < 32)
1275 hash1 |= (1 << offset);
1da177e4 1276 else
c659c38b 1277 hash2 |= (1 << (offset - 32));
1da177e4 1278 }
567ec874 1279 i++;
1da177e4 1280 }
c659c38b
SA		 1281 for ( ; i < 3; i++)
1282 tlan_set_mac(dev, i + 1, NULL);
1283 tlan_dio_write32(dev->base_addr, TLAN_HASH_1, hash1);
1284 tlan_dio_write32(dev->base_addr, TLAN_HASH_2, hash2);
1da177e4
LT		 1285 }
1286 }
1287
c659c38b 1288}
1da177e4
LT		 1289
1290
1291
1292/*****************************************************************************
1293******************************************************************************
1294
c659c38b 1295ThunderLAN driver interrupt vectors and table
1da177e4 1296
c659c38b
SA		 1297please see chap. 4, "Interrupt Handling" of the "ThunderLAN
1298Programmer's Guide" for more informations on handling interrupts
1299generated by TLAN based adapters.
1da177e4
LT		 1300
1301******************************************************************************
1302*****************************************************************************/
1303
1304
1da177e4
LT		 1305
1306
c659c38b
SA		 1307/***************************************************************
1308 * tlan_handle_tx_eof
1309 *
1310 * Returns:
1311 * 1
1312 * Parms:
1313 * dev Device assigned the IRQ that was
1314 * raised.
1315 * host_int The contents of the HOST_INT
1316 * port.
1317 *
1318 * This function handles Tx EOF interrupts which are raised
1319 * by the adapter when it has completed sending the
1320 * contents of a buffer. If detemines which list/buffer
1321 * was completed and resets it. If the buffer was the last
1322 * in the channel (EOC), then the function checks to see if
1323 * another buffer is ready to send, and if so, sends a Tx
1324 * Go command. Finally, the driver activates/continues the
1325 * activity LED.
1326 *
1327 **************************************************************/
1328
1329static u32 tlan_handle_tx_eof(struct net_device *dev, u16 host_int)
1da177e4 1330{
c659c38b 1331 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1332 int eoc = 0;
c659c38b 1333 struct tlan_list *head_list;
1da177e4
LT		 1334 dma_addr_t head_list_phys;
1335 u32 ack = 0;
c659c38b 1336 u16 tmp_c_stat;
6aa20a22 1337
c659c38b
SA		 1338 TLAN_DBG(TLAN_DEBUG_TX,
1339 "TRANSMIT: Handling TX EOF (Head=%d Tail=%d)\n",
1340 priv->tx_head, priv->tx_tail);
1341 head_list = priv->tx_list + priv->tx_head;
1da177e4 1342
c659c38b
SA		 1343 while (((tmp_c_stat = head_list->c_stat) & TLAN_CSTAT_FRM_CMP)
1344 && (ack < 255)) {
1345 struct sk_buff *skb = tlan_get_skb(head_list);
5eeabf51 1346
1da177e4 1347 ack++;
c659c38b 1348 pci_unmap_single(priv->pci_dev, head_list->buffer[0].address,
5eeabf51
SA		 1349 max(skb->len,
1350 (unsigned int)TLAN_MIN_FRAME_SIZE),
1351 PCI_DMA_TODEVICE);
1352 dev_kfree_skb_any(skb);
1353 head_list->buffer[8].address = 0;
1354 head_list->buffer[9].address = 0;
6aa20a22 1355
c659c38b 1356 if (tmp_c_stat & TLAN_CSTAT_EOC)
1da177e4 1357 eoc = 1;
6aa20a22 1358
c659c38b 1359 dev->stats.tx_bytes += head_list->frame_size;
1da177e4 1360
c659c38b 1361 head_list->c_stat = TLAN_CSTAT_UNUSED;
6aa20a22 1362 netif_start_queue(dev);
c659c38b
SA		 1363 CIRC_INC(priv->tx_head, TLAN_NUM_TX_LISTS);
1364 head_list = priv->tx_list + priv->tx_head;
1da177e4
LT		 1365 }
1366
1367 if (!ack)
50624aab
JP		 1368 netdev_info(dev,
1369 "Received interrupt for uncompleted TX frame\n");
c659c38b
SA		 1370
1371 if (eoc) {
1372 TLAN_DBG(TLAN_DEBUG_TX,
1373 "TRANSMIT: handling TX EOC (Head=%d Tail=%d)\n",
1374 priv->tx_head, priv->tx_tail);
1375 head_list = priv->tx_list + priv->tx_head;
1376 head_list_phys = priv->tx_list_dma
1377 + sizeof(struct tlan_list)*priv->tx_head;
f45437ef
SA		 1378 if ((head_list->c_stat & TLAN_CSTAT_READY)
1379 == TLAN_CSTAT_READY) {
c659c38b 1380 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4
LT		 1381 ack |= TLAN_HC_GO;
1382 } else {
c659c38b 1383 priv->tx_in_progress = 0;
1da177e4
LT		 1384 }
1385 }
6aa20a22 1386
c659c38b
SA		 1387 if (priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED) {
1388 tlan_dio_write8(dev->base_addr,
1389 TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT);
1390 if (priv->timer.function == NULL) {
1391 priv->timer.function = tlan_timer;
1392 priv->timer.data = (unsigned long) dev;
1393 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
1394 priv->timer_set_at = jiffies;
1395 priv->timer_type = TLAN_TIMER_ACTIVITY;
1396 add_timer(&priv->timer);
1397 } else if (priv->timer_type == TLAN_TIMER_ACTIVITY) {
1398 priv->timer_set_at = jiffies;
1da177e4
LT		 1399 }
1400 }
1401
1402 return ack;
1403
c659c38b 1404}
1da177e4
LT		 1405
1406
1407
1408
c659c38b
SA		 1409/***************************************************************
1410 * TLan_HandleStatOverflow
1411 *
1412 * Returns:
1413 * 1
1414 * Parms:
1415 * dev Device assigned the IRQ that was
1416 * raised.
1417 * host_int The contents of the HOST_INT
1418 * port.
1419 *
1420 * This function handles the Statistics Overflow interrupt
1421 * which means that one or more of the TLAN statistics
1422 * registers has reached 1/2 capacity and needs to be read.
1423 *
1424 **************************************************************/
1da177e4 1425
c659c38b 1426static u32 tlan_handle_stat_overflow(struct net_device *dev, u16 host_int)
1da177e4 1427{
c659c38b 1428 tlan_read_and_clear_stats(dev, TLAN_RECORD);
1da177e4
LT		 1429
1430 return 1;
1431
c659c38b
SA		 1432}
1433
1434
1435
1436
1437/***************************************************************
1438 * TLan_HandleRxEOF
1439 *
1440 * Returns:
1441 * 1
1442 * Parms:
1443 * dev Device assigned the IRQ that was
1444 * raised.
1445 * host_int The contents of the HOST_INT
1446 * port.
1447 *
1448 * This function handles the Rx EOF interrupt which
1449 * indicates a frame has been received by the adapter from
1450 * the net and the frame has been transferred to memory.
1451 * The function determines the bounce buffer the frame has
1452 * been loaded into, creates a new sk_buff big enough to
1453 * hold the frame, and sends it to protocol stack. It
1454 * then resets the used buffer and appends it to the end
1455 * of the list. If the frame was the last in the Rx
1456 * channel (EOC), the function restarts the receive channel
1457 * by sending an Rx Go command to the adapter. Then it
1458 * activates/continues the activity LED.
1459 *
1460 **************************************************************/
1461
1462static u32 tlan_handle_rx_eof(struct net_device *dev, u16 host_int)
1da177e4 1463{
c659c38b 1464 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1465 u32 ack = 0;
1466 int eoc = 0;
c659c38b 1467 struct tlan_list *head_list;
1da177e4 1468 struct sk_buff *skb;
c659c38b
SA		 1469 struct tlan_list *tail_list;
1470 u16 tmp_c_stat;
1da177e4
LT		 1471 dma_addr_t head_list_phys;
1472
c659c38b
SA		 1473 TLAN_DBG(TLAN_DEBUG_RX, "RECEIVE: handling RX EOF (Head=%d Tail=%d)\n",
1474 priv->rx_head, priv->rx_tail);
1475 head_list = priv->rx_list + priv->rx_head;
1476 head_list_phys =
1477 priv->rx_list_dma + sizeof(struct tlan_list)*priv->rx_head;
6aa20a22 1478
c659c38b
SA		 1479 while (((tmp_c_stat = head_list->c_stat) & TLAN_CSTAT_FRM_CMP)
1480 && (ack < 255)) {
1481 dma_addr_t frame_dma = head_list->buffer[0].address;
1482 u32 frame_size = head_list->frame_size;
5eeabf51
SA		 1483 struct sk_buff *new_skb;
1484
1da177e4 1485 ack++;
c659c38b 1486 if (tmp_c_stat & TLAN_CSTAT_EOC)
1da177e4 1487 eoc = 1;
6aa20a22 1488
89d71a66
ED		 1489 new_skb = netdev_alloc_skb_ip_align(dev,
1490 TLAN_MAX_FRAME_SIZE + 5);
c659c38b 1491 if (!new_skb)
5eeabf51 1492 goto drop_and_reuse;
6aa20a22 1493
c659c38b
SA		 1494 skb = tlan_get_skb(head_list);
1495 pci_unmap_single(priv->pci_dev, frame_dma,
5eeabf51 1496 TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
c659c38b 1497 skb_put(skb, frame_size);
1da177e4 1498
c659c38b 1499 dev->stats.rx_bytes += frame_size;
1da177e4 1500
c659c38b
SA		 1501 skb->protocol = eth_type_trans(skb, dev);
1502 netif_rx(skb);
6aa20a22 1503
c659c38b
SA		 1504 head_list->buffer[0].address =
1505 pci_map_single(priv->pci_dev, new_skb->data,
1506 TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
93e16847 1507
c659c38b 1508 tlan_store_skb(head_list, new_skb);
dfc2c0a6 1509drop_and_reuse:
1da177e4 1510 head_list->forward = 0;
c659c38b
SA		 1511 head_list->c_stat = 0;
1512 tail_list = priv->rx_list + priv->rx_tail;
1da177e4
LT		 1513 tail_list->forward = head_list_phys;
1514
c659c38b
SA		 1515 CIRC_INC(priv->rx_head, TLAN_NUM_RX_LISTS);
1516 CIRC_INC(priv->rx_tail, TLAN_NUM_RX_LISTS);
1517 head_list = priv->rx_list + priv->rx_head;
1518 head_list_phys = priv->rx_list_dma
1519 + sizeof(struct tlan_list)*priv->rx_head;
1da177e4
LT		 1520 }
1521
1522 if (!ack)
50624aab
JP		 1523 netdev_info(dev,
1524 "Received interrupt for uncompleted RX frame\n");
c659c38b
SA		 1525
1526
1527 if (eoc) {
1528 TLAN_DBG(TLAN_DEBUG_RX,
1529 "RECEIVE: handling RX EOC (Head=%d Tail=%d)\n",
1530 priv->rx_head, priv->rx_tail);
1531 head_list = priv->rx_list + priv->rx_head;
1532 head_list_phys = priv->rx_list_dma
1533 + sizeof(struct tlan_list)*priv->rx_head;
1534 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4 1535 ack |= TLAN_HC_GO | TLAN_HC_RT;
c659c38b 1536 priv->rx_eoc_count++;
1da177e4
LT		 1537 }
1538
c659c38b
SA		 1539 if (priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED) {
1540 tlan_dio_write8(dev->base_addr,
1541 TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT);
1542 if (priv->timer.function == NULL) {
1543 priv->timer.function = tlan_timer;
1da177e4
LT		 1544 priv->timer.data = (unsigned long) dev;
1545 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
c659c38b
SA		 1546 priv->timer_set_at = jiffies;
1547 priv->timer_type = TLAN_TIMER_ACTIVITY;
1da177e4 1548 add_timer(&priv->timer);
c659c38b
SA		 1549 } else if (priv->timer_type == TLAN_TIMER_ACTIVITY) {
1550 priv->timer_set_at = jiffies;
1da177e4
LT		 1551 }
1552 }
1553
1da177e4
LT		 1554 return ack;
1555
c659c38b 1556}
1da177e4
LT		 1557
1558
1559
1560
c659c38b
SA		 1561/***************************************************************
1562 * tlan_handle_dummy
1563 *
1564 * Returns:
1565 * 1
1566 * Parms:
1567 * dev Device assigned the IRQ that was
1568 * raised.
1569 * host_int The contents of the HOST_INT
1570 * port.
1571 *
1572 * This function handles the Dummy interrupt, which is
1573 * raised whenever a test interrupt is generated by setting
1574 * the Req_Int bit of HOST_CMD to 1.
1575 *
1576 **************************************************************/
1da177e4 1577
c659c38b 1578static u32 tlan_handle_dummy(struct net_device *dev, u16 host_int)
1da177e4 1579{
50624aab 1580 netdev_info(dev, "Test interrupt\n");
1da177e4
LT		 1581 return 1;
1582
c659c38b 1583}
1da177e4
LT		 1584
1585
1586
1587
c659c38b
SA		 1588/***************************************************************
1589 * tlan_handle_tx_eoc
1590 *
1591 * Returns:
1592 * 1
1593 * Parms:
1594 * dev Device assigned the IRQ that was
1595 * raised.
1596 * host_int The contents of the HOST_INT
1597 * port.
1598 *
1599 * This driver is structured to determine EOC occurrences by
1600 * reading the CSTAT member of the list structure. Tx EOC
1601 * interrupts are disabled via the DIO INTDIS register.
1602 * However, TLAN chips before revision 3.0 didn't have this
1603 * functionality, so process EOC events if this is the
1604 * case.
1605 *
1606 **************************************************************/
1da177e4 1607
c659c38b 1608static u32 tlan_handle_tx_eoc(struct net_device *dev, u16 host_int)
1da177e4 1609{
c659c38b
SA		 1610 struct tlan_priv *priv = netdev_priv(dev);
1611 struct tlan_list *head_list;
1da177e4
LT		 1612 dma_addr_t head_list_phys;
1613 u32 ack = 1;
6aa20a22 1614
1da177e4 1615 host_int = 0;
c659c38b
SA		 1616 if (priv->tlan_rev < 0x30) {
1617 TLAN_DBG(TLAN_DEBUG_TX,
1618 "TRANSMIT: handling TX EOC (Head=%d Tail=%d) -- IRQ\n",
1619 priv->tx_head, priv->tx_tail);
1620 head_list = priv->tx_list + priv->tx_head;
1621 head_list_phys = priv->tx_list_dma
1622 + sizeof(struct tlan_list)*priv->tx_head;
f45437ef
SA		 1623 if ((head_list->c_stat & TLAN_CSTAT_READY)
1624 == TLAN_CSTAT_READY) {
1da177e4 1625 netif_stop_queue(dev);
c659c38b 1626 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4
LT		 1627 ack |= TLAN_HC_GO;
1628 } else {
c659c38b 1629 priv->tx_in_progress = 0;
1da177e4
LT		 1630 }
1631 }
1632
1633 return ack;
1634
c659c38b 1635}
1da177e4
LT		 1636
1637
1638
1639
c659c38b
SA		 1640/***************************************************************
1641 * tlan_handle_status_check
1642 *
1643 * Returns:
1644 * 0 if Adapter check, 1 if Network Status check.
1645 * Parms:
1646 * dev Device assigned the IRQ that was
1647 * raised.
1648 * host_int The contents of the HOST_INT
1649 * port.
1650 *
1651 * This function handles Adapter Check/Network Status
1652 * interrupts generated by the adapter. It checks the
1653 * vector in the HOST_INT register to determine if it is
1654 * an Adapter Check interrupt. If so, it resets the
1655 * adapter. Otherwise it clears the status registers
1656 * and services the PHY.
1657 *
1658 **************************************************************/
1da177e4 1659
c659c38b 1660static u32 tlan_handle_status_check(struct net_device *dev, u16 host_int)
6aa20a22 1661{
c659c38b 1662 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1663 u32 ack;
1664 u32 error;
1665 u8 net_sts;
1666 u32 phy;
1667 u16 tlphy_ctl;
1668 u16 tlphy_sts;
6aa20a22 1669
1da177e4 1670 ack = 1;
c659c38b
SA		 1671 if (host_int & TLAN_HI_IV_MASK) {
1672 netif_stop_queue(dev);
1673 error = inl(dev->base_addr + TLAN_CH_PARM);
50624aab 1674 netdev_info(dev, "Adaptor Error = 0x%x\n", error);
c659c38b
SA		 1675 tlan_read_and_clear_stats(dev, TLAN_RECORD);
1676 outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD);
1da177e4
LT		 1677
1678 schedule_work(&priv->tlan_tqueue);
1679
1680 netif_wake_queue(dev);
1681 ack = 0;
1682 } else {
c659c38b
SA		 1683 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Status Check\n", dev->name);
1684 phy = priv->phy[priv->phy_num];
1685
1686 net_sts = tlan_dio_read8(dev->base_addr, TLAN_NET_STS);
1687 if (net_sts) {
1688 tlan_dio_write8(dev->base_addr, TLAN_NET_STS, net_sts);
1689 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Net_Sts = %x\n",
1690 dev->name, (unsigned) net_sts);
1da177e4 1691 }
c659c38b
SA		 1692 if ((net_sts & TLAN_NET_STS_MIRQ) && (priv->phy_num == 0)) {
1693 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_STS, &tlphy_sts);
1694 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl);
1695 if (!(tlphy_sts & TLAN_TS_POLOK) &&
1696 !(tlphy_ctl & TLAN_TC_SWAPOL)) {
1697 tlphy_ctl |= TLAN_TC_SWAPOL;
1698 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL,
1699 tlphy_ctl);
1700 } else if ((tlphy_sts & TLAN_TS_POLOK) &&
1701 (tlphy_ctl & TLAN_TC_SWAPOL)) {
1702 tlphy_ctl &= ~TLAN_TC_SWAPOL;
1703 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL,
1704 tlphy_ctl);
1da177e4 1705 }
c659c38b
SA		 1706
1707 if (debug)
1708 tlan_phy_print(dev);
1da177e4
LT		 1709 }
1710 }
1711
1712 return ack;
1713
c659c38b 1714}
1da177e4
LT		 1715
1716
1717
1718
c659c38b
SA		 1719/***************************************************************
1720 * tlan_handle_rx_eoc
1721 *
1722 * Returns:
1723 * 1
1724 * Parms:
1725 * dev Device assigned the IRQ that was
1726 * raised.
1727 * host_int The contents of the HOST_INT
1728 * port.
1729 *
1730 * This driver is structured to determine EOC occurrences by
1731 * reading the CSTAT member of the list structure. Rx EOC
1732 * interrupts are disabled via the DIO INTDIS register.
1733 * However, TLAN chips before revision 3.0 didn't have this
1734 * CSTAT member or a INTDIS register, so if this chip is
1735 * pre-3.0, process EOC interrupts normally.
1736 *
1737 **************************************************************/
1da177e4 1738
c659c38b 1739static u32 tlan_handle_rx_eoc(struct net_device *dev, u16 host_int)
1da177e4 1740{
c659c38b 1741 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1742 dma_addr_t head_list_phys;
1743 u32 ack = 1;
1744
c659c38b
SA		 1745 if (priv->tlan_rev < 0x30) {
1746 TLAN_DBG(TLAN_DEBUG_RX,
1747 "RECEIVE: Handling RX EOC (head=%d tail=%d) -- IRQ\n",
1748 priv->rx_head, priv->rx_tail);
1749 head_list_phys = priv->rx_list_dma
1750 + sizeof(struct tlan_list)*priv->rx_head;
1751 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4 1752 ack |= TLAN_HC_GO | TLAN_HC_RT;
c659c38b 1753 priv->rx_eoc_count++;
1da177e4
LT		 1754 }
1755
1756 return ack;
1757
c659c38b 1758}
1da177e4
LT		 1759
1760
1761
1762
1763/*****************************************************************************
1764******************************************************************************
1765
c659c38b 1766ThunderLAN driver timer function
1da177e4
LT		 1767
1768******************************************************************************
1769*****************************************************************************/
1770
1771
c659c38b
SA		 1772/***************************************************************
1773 * tlan_timer
1774 *
1775 * Returns:
1776 * Nothing
1777 * Parms:
1778 * data A value given to add timer when
1779 * add_timer was called.
1780 *
1781 * This function handles timed functionality for the
1782 * TLAN driver. The two current timer uses are for
1783 * delaying for autonegotionation and driving the ACT LED.
1784 * - Autonegotiation requires being allowed about
1785 * 2 1/2 seconds before attempting to transmit a
1786 * packet. It would be a very bad thing to hang
1787 * the kernel this long, so the driver doesn't
1788 * allow transmission 'til after this time, for
1789 * certain PHYs. It would be much nicer if all
1790 * PHYs were interrupt-capable like the internal
1791 * PHY.
1792 * - The ACT LED, which shows adapter activity, is
1793 * driven by the driver, and so must be left on
1794 * for a short period to power up the LED so it
1795 * can be seen. This delay can be changed by
1796 * changing the TLAN_TIMER_ACT_DELAY in tlan.h,
1797 * if desired. 100 ms produces a slightly
1798 * sluggish response.
1799 *
1800 **************************************************************/
1801
1802static void tlan_timer(unsigned long data)
1da177e4
LT		 1803{
1804 struct net_device *dev = (struct net_device *) data;
c659c38b 1805 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1806 u32 elapsed;
1807 unsigned long flags = 0;
1808
1809 priv->timer.function = NULL;
1810
c659c38b 1811 switch (priv->timer_type) {
6aa20a22 1812#ifdef MONITOR
c659c38b
SA		 1813 case TLAN_TIMER_LINK_BEAT:
1814 tlan_phy_monitor(dev);
1815 break;
1da177e4 1816#endif
c659c38b
SA		 1817 case TLAN_TIMER_PHY_PDOWN:
1818 tlan_phy_power_down(dev);
1819 break;
1820 case TLAN_TIMER_PHY_PUP:
1821 tlan_phy_power_up(dev);
1822 break;
1823 case TLAN_TIMER_PHY_RESET:
1824 tlan_phy_reset(dev);
1825 break;
1826 case TLAN_TIMER_PHY_START_LINK:
1827 tlan_phy_start_link(dev);
1828 break;
1829 case TLAN_TIMER_PHY_FINISH_AN:
1830 tlan_phy_finish_auto_neg(dev);
1831 break;
1832 case TLAN_TIMER_FINISH_RESET:
1833 tlan_finish_reset(dev);
1834 break;
1835 case TLAN_TIMER_ACTIVITY:
1836 spin_lock_irqsave(&priv->lock, flags);
1837 if (priv->timer.function == NULL) {
1838 elapsed = jiffies - priv->timer_set_at;
1839 if (elapsed >= TLAN_TIMER_ACT_DELAY) {
1840 tlan_dio_write8(dev->base_addr,
1841 TLAN_LED_REG, TLAN_LED_LINK);
1842 } else {
1843 priv->timer.function = tlan_timer;
1844 priv->timer.expires = priv->timer_set_at
1845 + TLAN_TIMER_ACT_DELAY;
1846 spin_unlock_irqrestore(&priv->lock, flags);
1847 add_timer(&priv->timer);
1848 break;
1da177e4 1849 }
c659c38b
SA		 1850 }
1851 spin_unlock_irqrestore(&priv->lock, flags);
1852 break;
1853 default:
1854 break;
1da177e4
LT		 1855 }
1856
c659c38b 1857}
1da177e4
LT		 1858
1859
1860
1861
1862/*****************************************************************************
1863******************************************************************************
1864
c659c38b 1865ThunderLAN driver adapter related routines
1da177e4
LT		 1866
1867******************************************************************************
1868*****************************************************************************/
1869
1870
c659c38b
SA		 1871/***************************************************************
1872 * tlan_reset_lists
1873 *
1874 * Returns:
1875 * Nothing
1876 * Parms:
1877 * dev The device structure with the list
1878 * stuctures to be reset.
1879 *
1880 * This routine sets the variables associated with managing
1881 * the TLAN lists to their initial values.
1882 *
1883 **************************************************************/
1884
1885static void tlan_reset_lists(struct net_device *dev)
1da177e4 1886{
c659c38b 1887 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1888 int i;
c659c38b 1889 struct tlan_list *list;
1da177e4
LT		 1890 dma_addr_t list_phys;
1891 struct sk_buff *skb;
1da177e4 1892
c659c38b
SA		 1893 priv->tx_head = 0;
1894 priv->tx_tail = 0;
1895 for (i = 0; i < TLAN_NUM_TX_LISTS; i++) {
1896 list = priv->tx_list + i;
1897 list->c_stat = TLAN_CSTAT_UNUSED;
5eeabf51 1898 list->buffer[0].address = 0;
1da177e4
LT		 1899 list->buffer[2].count = 0;
1900 list->buffer[2].address = 0;
1901 list->buffer[8].address = 0;
1902 list->buffer[9].address = 0;
1903 }
1904
c659c38b
SA		 1905 priv->rx_head = 0;
1906 priv->rx_tail = TLAN_NUM_RX_LISTS - 1;
1907 for (i = 0; i < TLAN_NUM_RX_LISTS; i++) {
1908 list = priv->rx_list + i;
1909 list_phys = priv->rx_list_dma + sizeof(struct tlan_list)*i;
1910 list->c_stat = TLAN_CSTAT_READY;
1911 list->frame_size = TLAN_MAX_FRAME_SIZE;
1da177e4 1912 list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER;
89d71a66 1913 skb = netdev_alloc_skb_ip_align(dev, TLAN_MAX_FRAME_SIZE + 5);
720a43ef 1914 if (!skb)
5eeabf51 1915 break;
5eeabf51 1916
c659c38b 1917 list->buffer[0].address = pci_map_single(priv->pci_dev,
5eeabf51
SA		 1918 skb->data,
1919 TLAN_MAX_FRAME_SIZE,
1920 PCI_DMA_FROMDEVICE);
c659c38b 1921 tlan_store_skb(list, skb);
1da177e4
LT		 1922 list->buffer[1].count = 0;
1923 list->buffer[1].address = 0;
c659c38b 1924 list->forward = list_phys + sizeof(struct tlan_list);
9ded65a1
SH		 1925 }
1926
1927 /* in case ran out of memory early, clear bits */
1928 while (i < TLAN_NUM_RX_LISTS) {
c659c38b 1929 tlan_store_skb(priv->rx_list + i, NULL);
9ded65a1 1930 ++i;
1da177e4 1931 }
9ded65a1 1932 list->forward = 0;
1da177e4 1933
c659c38b 1934}
1da177e4
LT		 1935
1936
c659c38b 1937static void tlan_free_lists(struct net_device *dev)
1da177e4 1938{
c659c38b 1939 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1940 int i;
c659c38b 1941 struct tlan_list *list;
1da177e4
LT		 1942 struct sk_buff *skb;
1943
c659c38b
SA		 1944 for (i = 0; i < TLAN_NUM_TX_LISTS; i++) {
1945 list = priv->tx_list + i;
1946 skb = tlan_get_skb(list);
1947 if (skb) {
5eeabf51 1948 pci_unmap_single(
c659c38b 1949 priv->pci_dev,
5eeabf51
SA		 1950 list->buffer[0].address,
1951 max(skb->len,
1952 (unsigned int)TLAN_MIN_FRAME_SIZE),
1953 PCI_DMA_TODEVICE);
c659c38b 1954 dev_kfree_skb_any(skb);
5eeabf51
SA		 1955 list->buffer[8].address = 0;
1956 list->buffer[9].address = 0;
1da177e4 1957 }
5eeabf51 1958 }
1da177e4 1959
c659c38b
SA		 1960 for (i = 0; i < TLAN_NUM_RX_LISTS; i++) {
1961 list = priv->rx_list + i;
1962 skb = tlan_get_skb(list);
1963 if (skb) {
1964 pci_unmap_single(priv->pci_dev,
5eeabf51
SA		 1965 list->buffer[0].address,
1966 TLAN_MAX_FRAME_SIZE,
1967 PCI_DMA_FROMDEVICE);
c659c38b 1968 dev_kfree_skb_any(skb);
5eeabf51
SA		 1969 list->buffer[8].address = 0;
1970 list->buffer[9].address = 0;
1da177e4
LT		 1971 }
1972 }
c659c38b 1973}
1da177e4
LT		 1974
1975
1976
1977
c659c38b
SA		 1978/***************************************************************
1979 * tlan_print_dio
1980 *
1981 * Returns:
1982 * Nothing
1983 * Parms:
1984 * io_base Base IO port of the device of
1985 * which to print DIO registers.
1986 *
1987 * This function prints out all the internal (DIO)
1988 * registers of a TLAN chip.
1989 *
1990 **************************************************************/
1da177e4 1991
c659c38b 1992static void tlan_print_dio(u16 io_base)
1da177e4
LT		 1993{
1994 u32 data0, data1;
1995 int i;
1996
50624aab
JP		 1997 pr_info("Contents of internal registers for io base 0x%04hx\n",
1998 io_base);
1999 pr_info("Off. +0 +4\n");
c659c38b
SA		 2000 for (i = 0; i < 0x4C; i += 8) {
2001 data0 = tlan_dio_read32(io_base, i);
2002 data1 = tlan_dio_read32(io_base, i + 0x4);
50624aab 2003 pr_info("0x%02x 0x%08x 0x%08x\n", i, data0, data1);
1da177e4
LT		 2004 }
2005
c659c38b 2006}
1da177e4
LT		 2007
2008
2009
2010
c659c38b
SA		 2011/***************************************************************
2012 * TLan_PrintList
2013 *
2014 * Returns:
2015 * Nothing
2016 * Parms:
2017 * list A pointer to the struct tlan_list structure to
2018 * be printed.
2019 * type A string to designate type of list,
2020 * "Rx" or "Tx".
2021 * num The index of the list.
2022 *
2023 * This function prints out the contents of the list
2024 * pointed to by the list parameter.
2025 *
2026 **************************************************************/
1da177e4 2027
c659c38b 2028static void tlan_print_list(struct tlan_list *list, char *type, int num)
1da177e4
LT		 2029{
2030 int i;
2031
50624aab
JP		 2032 pr_info("%s List %d at %p\n", type, num, list);
2033 pr_info(" Forward = 0x%08x\n", list->forward);
2034 pr_info(" CSTAT = 0x%04hx\n", list->c_stat);
2035 pr_info(" Frame Size = 0x%04hx\n", list->frame_size);
c659c38b
SA		 2036 /* for (i = 0; i < 10; i++) { */
2037 for (i = 0; i < 2; i++) {
50624aab
JP		 2038 pr_info(" Buffer[%d].count, addr = 0x%08x, 0x%08x\n",
2039 i, list->buffer[i].count, list->buffer[i].address);
1da177e4
LT		 2040 }
2041
c659c38b 2042}
1da177e4
LT		 2043
2044
2045
2046
c659c38b
SA		 2047/***************************************************************
2048 * tlan_read_and_clear_stats
2049 *
2050 * Returns:
2051 * Nothing
2052 * Parms:
2053 * dev Pointer to device structure of adapter
2054 * to which to read stats.
2055 * record Flag indicating whether to add
2056 *
2057 * This functions reads all the internal status registers
2058 * of the TLAN chip, which clears them as a side effect.
2059 * It then either adds the values to the device's status
2060 * struct, or discards them, depending on whether record
2061 * is TLAN_RECORD (!=0) or TLAN_IGNORE (==0).
2062 *
2063 **************************************************************/
1da177e4 2064
c659c38b 2065static void tlan_read_and_clear_stats(struct net_device *dev, int record)
1da177e4 2066{
1da177e4
LT		 2067 u32 tx_good, tx_under;
2068 u32 rx_good, rx_over;
2069 u32 def_tx, crc, code;
2070 u32 multi_col, single_col;
2071 u32 excess_col, late_col, loss;
2072
c659c38b
SA		 2073 outw(TLAN_GOOD_TX_FRMS, dev->base_addr + TLAN_DIO_ADR);
2074 tx_good = inb(dev->base_addr + TLAN_DIO_DATA);
2075 tx_good += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2076 tx_good += inb(dev->base_addr + TLAN_DIO_DATA + 2) << 16;
2077 tx_under = inb(dev->base_addr + TLAN_DIO_DATA + 3);
2078
2079 outw(TLAN_GOOD_RX_FRMS, dev->base_addr + TLAN_DIO_ADR);
2080 rx_good = inb(dev->base_addr + TLAN_DIO_DATA);
2081 rx_good += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2082 rx_good += inb(dev->base_addr + TLAN_DIO_DATA + 2) << 16;
2083 rx_over = inb(dev->base_addr + TLAN_DIO_DATA + 3);
2084
2085 outw(TLAN_DEFERRED_TX, dev->base_addr + TLAN_DIO_ADR);
2086 def_tx = inb(dev->base_addr + TLAN_DIO_DATA);
2087 def_tx += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2088 crc = inb(dev->base_addr + TLAN_DIO_DATA + 2);
2089 code = inb(dev->base_addr + TLAN_DIO_DATA + 3);
2090
2091 outw(TLAN_MULTICOL_FRMS, dev->base_addr + TLAN_DIO_ADR);
2092 multi_col = inb(dev->base_addr + TLAN_DIO_DATA);
2093 multi_col += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2094 single_col = inb(dev->base_addr + TLAN_DIO_DATA + 2);
2095 single_col += inb(dev->base_addr + TLAN_DIO_DATA + 3) << 8;
2096
2097 outw(TLAN_EXCESSCOL_FRMS, dev->base_addr + TLAN_DIO_ADR);
2098 excess_col = inb(dev->base_addr + TLAN_DIO_DATA);
2099 late_col = inb(dev->base_addr + TLAN_DIO_DATA + 1);
2100 loss = inb(dev->base_addr + TLAN_DIO_DATA + 2);
2101
2102 if (record) {
f8f31544
SH		 2103 dev->stats.rx_packets += rx_good;
2104 dev->stats.rx_errors += rx_over + crc + code;
2105 dev->stats.tx_packets += tx_good;
2106 dev->stats.tx_errors += tx_under + loss;
c659c38b
SA		 2107 dev->stats.collisions += multi_col
2108 + single_col + excess_col + late_col;
f8f31544
SH		 2109
2110 dev->stats.rx_over_errors += rx_over;
2111 dev->stats.rx_crc_errors += crc;
2112 dev->stats.rx_frame_errors += code;
2113
2114 dev->stats.tx_aborted_errors += tx_under;
2115 dev->stats.tx_carrier_errors += loss;
1da177e4 2116 }
6aa20a22 2117
c659c38b 2118}
1da177e4
LT		 2119
2120
2121
2122
c659c38b
SA		 2123/***************************************************************
2124 * TLan_Reset
2125 *
2126 * Returns:
2127 * 0
2128 * Parms:
2129 * dev Pointer to device structure of adapter
2130 * to be reset.
2131 *
2132 * This function resets the adapter and it's physical
2133 * device. See Chap. 3, pp. 9-10 of the "ThunderLAN
2134 * Programmer's Guide" for details. The routine tries to
2135 * implement what is detailed there, though adjustments
2136 * have been made.
2137 *
2138 **************************************************************/
1da177e4 2139
98e0f521 2140static void
c659c38b 2141tlan_reset_adapter(struct net_device *dev)
1da177e4 2142{
c659c38b 2143 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2144 int i;
2145 u32 addr;
2146 u32 data;
2147 u8 data8;
2148
c659c38b
SA		 2149 priv->tlan_full_duplex = false;
2150 priv->phy_online = 0;
1da177e4
LT		 2151 netif_carrier_off(dev);
2152
2153/* 1. Assert reset bit. */
2154
2155 data = inl(dev->base_addr + TLAN_HOST_CMD);
2156 data |= TLAN_HC_AD_RST;
2157 outl(data, dev->base_addr + TLAN_HOST_CMD);
6aa20a22 2158
1da177e4
LT		 2159 udelay(1000);
2160
c659c38b 2161/* 2. Turn off interrupts. (Probably isn't necessary) */
1da177e4
LT		 2162
2163 data = inl(dev->base_addr + TLAN_HOST_CMD);
2164 data |= TLAN_HC_INT_OFF;
2165 outl(data, dev->base_addr + TLAN_HOST_CMD);
2166
2167/* 3. Clear AREGs and HASHs. */
2168
c659c38b
SA		 2169 for (i = TLAN_AREG_0; i <= TLAN_HASH_2; i += 4)
2170 tlan_dio_write32(dev->base_addr, (u16) i, 0);
1da177e4
LT		 2171
2172/* 4. Setup NetConfig register. */
2173
2174 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
c659c38b 2175 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, (u16) data);
1da177e4
LT		 2176
2177/* 5. Load Ld_Tmr and Ld_Thr in HOST_CMD. */
2178
c659c38b
SA		 2179 outl(TLAN_HC_LD_TMR | 0x3f, dev->base_addr + TLAN_HOST_CMD);
2180 outl(TLAN_HC_LD_THR | 0x9, dev->base_addr + TLAN_HOST_CMD);
1da177e4
LT		 2181
2182/* 6. Unreset the MII by setting NMRST (in NetSio) to 1. */
2183
c659c38b 2184 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
1da177e4 2185 addr = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
c659c38b 2186 tlan_set_bit(TLAN_NET_SIO_NMRST, addr);
1da177e4
LT		 2187
2188/* 7. Setup the remaining registers. */
2189
c659c38b 2190 if (priv->tlan_rev >= 0x30) {
1da177e4 2191 data8 = TLAN_ID_TX_EOC | TLAN_ID_RX_EOC;
c659c38b 2192 tlan_dio_write8(dev->base_addr, TLAN_INT_DIS, data8);
1da177e4 2193 }
c659c38b 2194 tlan_phy_detect(dev);
1da177e4 2195 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN;
6aa20a22 2196
c659c38b 2197 if (priv->adapter->flags & TLAN_ADAPTER_BIT_RATE_PHY) {
1da177e4 2198 data |= TLAN_NET_CFG_BIT;
c659c38b
SA		 2199 if (priv->aui == 1) {
2200 tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x0a);
2201 } else if (priv->duplex == TLAN_DUPLEX_FULL) {
2202 tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x00);
2203 priv->tlan_full_duplex = true;
1da177e4 2204 } else {
c659c38b 2205 tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x08);
1da177e4
LT		 2206 }
2207 }
2208
c659c38b 2209 if (priv->phy_num == 0)
1da177e4 2210 data |= TLAN_NET_CFG_PHY_EN;
c659c38b 2211 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, (u16) data);
1da177e4 2212
c659c38b
SA		 2213 if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY)
2214 tlan_finish_reset(dev);
2215 else
2216 tlan_phy_power_down(dev);
1da177e4 2217
c659c38b 2218}
1da177e4
LT		 2219
2220
2221
2222
98e0f521 2223static void
c659c38b 2224tlan_finish_reset(struct net_device *dev)
1da177e4 2225{
c659c38b 2226 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2227 u8 data;
2228 u32 phy;
2229 u8 sio;
2230 u16 status;
2231 u16 partner;
2232 u16 tlphy_ctl;
c659c38b 2233 u16 tlphy_par;
1da177e4 2234 u16 tlphy_id1, tlphy_id2;
c659c38b 2235 int i;
1da177e4 2236
c659c38b 2237 phy = priv->phy[priv->phy_num];
1da177e4
LT		 2238
2239 data = TLAN_NET_CMD_NRESET | TLAN_NET_CMD_NWRAP;
c659c38b 2240 if (priv->tlan_full_duplex)
1da177e4 2241 data |= TLAN_NET_CMD_DUPLEX;
c659c38b 2242 tlan_dio_write8(dev->base_addr, TLAN_NET_CMD, data);
6aa20a22 2243 data = TLAN_NET_MASK_MASK4 | TLAN_NET_MASK_MASK5;
c659c38b 2244 if (priv->phy_num == 0)
6aa20a22 2245 data |= TLAN_NET_MASK_MASK7;
c659c38b
SA		 2246 tlan_dio_write8(dev->base_addr, TLAN_NET_MASK, data);
2247 tlan_dio_write16(dev->base_addr, TLAN_MAX_RX, ((1536)+7)&~7);
2248 tlan_mii_read_reg(dev, phy, MII_GEN_ID_HI, &tlphy_id1);
2249 tlan_mii_read_reg(dev, phy, MII_GEN_ID_LO, &tlphy_id2);
6aa20a22 2250
c659c38b
SA		 2251 if ((priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) ||
2252 (priv->aui)) {
1da177e4 2253 status = MII_GS_LINK;
50624aab 2254 netdev_info(dev, "Link forced\n");
1da177e4 2255 } else {
c659c38b
SA		 2256 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2257 udelay(1000);
2258 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2259 if ((status & MII_GS_LINK) &&
2260 /* We only support link info on Nat.Sem. PHY's */
2261 (tlphy_id1 == NAT_SEM_ID1) &&
2262 (tlphy_id2 == NAT_SEM_ID2)) {
2263 tlan_mii_read_reg(dev, phy, MII_AN_LPA, &partner);
2264 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_PAR, &tlphy_par);
2265
50624aab
JP		 2266 netdev_info(dev,
2267 "Link active with %s %uMbps %s-Duplex\n",
2268 !(tlphy_par & TLAN_PHY_AN_EN_STAT)
2269 ? "forced" : "Autonegotiation enabled,",
2270 tlphy_par & TLAN_PHY_SPEED_100
2271 ? 100 : 10,
2272 tlphy_par & TLAN_PHY_DUPLEX_FULL
2273 ? "Full" : "Half");
2274
2275 if (tlphy_par & TLAN_PHY_AN_EN_STAT) {
2276 netdev_info(dev, "Partner capability:");
2277 for (i = 5; i < 10; i++)
2278 if (partner & (1 << i))
2279 pr_cont(" %s", media[i-5]);
2280 pr_cont("\n");
1da177e4
LT		 2281 }
2282
c659c38b
SA		 2283 tlan_dio_write8(dev->base_addr, TLAN_LED_REG,
2284 TLAN_LED_LINK);
6aa20a22 2285#ifdef MONITOR
1da177e4 2286 /* We have link beat..for now anyway */
c659c38b
SA		 2287 priv->link = 1;
2288 /*Enabling link beat monitoring */
2289 tlan_set_timer(dev, (10*HZ), TLAN_TIMER_LINK_BEAT);
6aa20a22 2290#endif
1da177e4 2291 } else if (status & MII_GS_LINK) {
50624aab 2292 netdev_info(dev, "Link active\n");
c659c38b
SA		 2293 tlan_dio_write8(dev->base_addr, TLAN_LED_REG,
2294 TLAN_LED_LINK);
1da177e4
LT		 2295 }
2296 }
2297
c659c38b
SA		 2298 if (priv->phy_num == 0) {
2299 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl);
2300 tlphy_ctl |= TLAN_TC_INTEN;
2301 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, tlphy_ctl);
2302 sio = tlan_dio_read8(dev->base_addr, TLAN_NET_SIO);
2303 sio |= TLAN_NET_SIO_MINTEN;
2304 tlan_dio_write8(dev->base_addr, TLAN_NET_SIO, sio);
2305 }
2306
2307 if (status & MII_GS_LINK) {
2308 tlan_set_mac(dev, 0, dev->dev_addr);
2309 priv->phy_online = 1;
2310 outb((TLAN_HC_INT_ON >> 8), dev->base_addr + TLAN_HOST_CMD + 1);
2311 if (debug >= 1 && debug != TLAN_DEBUG_PROBE)
2312 outb((TLAN_HC_REQ_INT >> 8),
2313 dev->base_addr + TLAN_HOST_CMD + 1);
2314 outl(priv->rx_list_dma, dev->base_addr + TLAN_CH_PARM);
2315 outl(TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD);
1da177e4
LT		 2316 netif_carrier_on(dev);
2317 } else {
50624aab 2318 netdev_info(dev, "Link inactive, will retry in 10 secs...\n");
c659c38b 2319 tlan_set_timer(dev, (10*HZ), TLAN_TIMER_FINISH_RESET);
1da177e4
LT		 2320 return;
2321 }
c659c38b 2322 tlan_set_multicast_list(dev);
1da177e4 2323
c659c38b 2324}
1da177e4
LT		 2325
2326
2327
2328
c659c38b
SA		 2329/***************************************************************
2330 * tlan_set_mac
2331 *
2332 * Returns:
2333 * Nothing
2334 * Parms:
2335 * dev Pointer to device structure of adapter
2336 * on which to change the AREG.
2337 * areg The AREG to set the address in (0 - 3).
2338 * mac A pointer to an array of chars. Each
2339 * element stores one byte of the address.
2340 * IE, it isn't in ascii.
2341 *
2342 * This function transfers a MAC address to one of the
2343 * TLAN AREGs (address registers). The TLAN chip locks
2344 * the register on writing to offset 0 and unlocks the
2345 * register after writing to offset 5. If NULL is passed
2346 * in mac, then the AREG is filled with 0's.
2347 *
2348 **************************************************************/
1da177e4 2349
c659c38b 2350static void tlan_set_mac(struct net_device *dev, int areg, char *mac)
1da177e4
LT		 2351{
2352 int i;
6aa20a22 2353
1da177e4
LT		 2354 areg *= 6;
2355
c659c38b
SA		 2356 if (mac != NULL) {
2357 for (i = 0; i < 6; i++)
2358 tlan_dio_write8(dev->base_addr,
2359 TLAN_AREG_0 + areg + i, mac[i]);
1da177e4 2360 } else {
c659c38b
SA		 2361 for (i = 0; i < 6; i++)
2362 tlan_dio_write8(dev->base_addr,
2363 TLAN_AREG_0 + areg + i, 0);
1da177e4
LT		 2364 }
2365
c659c38b 2366}
1da177e4
LT		 2367
2368
2369
2370
2371/*****************************************************************************
2372******************************************************************************
2373
c659c38b 2374ThunderLAN driver PHY layer routines
1da177e4
LT		 2375
2376******************************************************************************
2377*****************************************************************************/
2378
2379
2380
c659c38b
SA		 2381/*********************************************************************
2382 * tlan_phy_print
2383 *
2384 * Returns:
2385 * Nothing
2386 * Parms:
2387 * dev A pointer to the device structure of the
2388 * TLAN device having the PHYs to be detailed.
2389 *
2390 * This function prints the registers a PHY (aka transceiver).
2391 *
2392 ********************************************************************/
1da177e4 2393
c659c38b 2394static void tlan_phy_print(struct net_device *dev)
1da177e4 2395{
c659c38b 2396 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2397 u16 i, data0, data1, data2, data3, phy;
2398
c659c38b
SA		 2399 phy = priv->phy[priv->phy_num];
2400
2401 if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) {
50624aab 2402 netdev_info(dev, "Unmanaged PHY\n");
c659c38b 2403 } else if (phy <= TLAN_PHY_MAX_ADDR) {
50624aab
JP		 2404 netdev_info(dev, "PHY 0x%02x\n", phy);
2405 pr_info(" Off. +0 +1 +2 +3\n");
c659c38b 2406 for (i = 0; i < 0x20; i += 4) {
c659c38b 2407 tlan_mii_read_reg(dev, phy, i, &data0);
c659c38b 2408 tlan_mii_read_reg(dev, phy, i + 1, &data1);
c659c38b 2409 tlan_mii_read_reg(dev, phy, i + 2, &data2);
c659c38b 2410 tlan_mii_read_reg(dev, phy, i + 3, &data3);
50624aab
JP		 2411 pr_info(" 0x%02x 0x%04hx 0x%04hx 0x%04hx 0x%04hx\n",
2412 i, data0, data1, data2, data3);
1da177e4
LT		 2413 }
2414 } else {
50624aab 2415 netdev_info(dev, "Invalid PHY\n");
1da177e4
LT		 2416 }
2417
c659c38b 2418}
1da177e4
LT		 2419
2420
2421
2422
c659c38b
SA		 2423/*********************************************************************
2424 * tlan_phy_detect
2425 *
2426 * Returns:
2427 * Nothing
2428 * Parms:
2429 * dev A pointer to the device structure of the adapter
2430 * for which the PHY needs determined.
2431 *
2432 * So far I've found that adapters which have external PHYs
2433 * may also use the internal PHY for part of the functionality.
2434 * (eg, AUI/Thinnet). This function finds out if this TLAN
2435 * chip has an internal PHY, and then finds the first external
2436 * PHY (starting from address 0) if it exists).
2437 *
2438 ********************************************************************/
1da177e4 2439
c659c38b 2440static void tlan_phy_detect(struct net_device *dev)
1da177e4 2441{
c659c38b 2442 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2443 u16 control;
2444 u16 hi;
2445 u16 lo;
2446 u32 phy;
2447
c659c38b
SA		 2448 if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) {
2449 priv->phy_num = 0xffff;
1da177e4
LT		 2450 return;
2451 }
2452
c659c38b 2453 tlan_mii_read_reg(dev, TLAN_PHY_MAX_ADDR, MII_GEN_ID_HI, &hi);
6aa20a22 2454
c659c38b 2455 if (hi != 0xffff)
1da177e4 2456 priv->phy[0] = TLAN_PHY_MAX_ADDR;
c659c38b 2457 else
1da177e4 2458 priv->phy[0] = TLAN_PHY_NONE;
1da177e4
LT		 2459
2460 priv->phy[1] = TLAN_PHY_NONE;
c659c38b
SA		 2461 for (phy = 0; phy <= TLAN_PHY_MAX_ADDR; phy++) {
2462 tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &control);
2463 tlan_mii_read_reg(dev, phy, MII_GEN_ID_HI, &hi);
2464 tlan_mii_read_reg(dev, phy, MII_GEN_ID_LO, &lo);
2465 if ((control != 0xffff) ||
2466 (hi != 0xffff) || (lo != 0xffff)) {
2467 TLAN_DBG(TLAN_DEBUG_GNRL,
2468 "PHY found at %02x %04x %04x %04x\n",
2469 phy, control, hi, lo);
2470 if ((priv->phy[1] == TLAN_PHY_NONE) &&
2471 (phy != TLAN_PHY_MAX_ADDR)) {
1da177e4
LT		 2472 priv->phy[1] = phy;
2473 }
2474 }
2475 }
2476
c659c38b
SA		 2477 if (priv->phy[1] != TLAN_PHY_NONE)
2478 priv->phy_num = 1;
2479 else if (priv->phy[0] != TLAN_PHY_NONE)
2480 priv->phy_num = 0;
2481 else
50624aab 2482 netdev_info(dev, "Cannot initialize device, no PHY was found!\n");
1da177e4 2483
c659c38b 2484}
1da177e4
LT		 2485
2486
2487
2488
c659c38b 2489static void tlan_phy_power_down(struct net_device *dev)
1da177e4 2490{
c659c38b 2491 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2492 u16 value;
2493
c659c38b 2494 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Powering down PHY(s).\n", dev->name);
1da177e4 2495 value = MII_GC_PDOWN | MII_GC_LOOPBK | MII_GC_ISOLATE;
c659c38b
SA		 2496 tlan_mii_sync(dev->base_addr);
2497 tlan_mii_write_reg(dev, priv->phy[priv->phy_num], MII_GEN_CTL, value);
2498 if ((priv->phy_num == 0) &&
2499 (priv->phy[1] != TLAN_PHY_NONE) &&
2500 (!(priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10))) {
2501 tlan_mii_sync(dev->base_addr);
2502 tlan_mii_write_reg(dev, priv->phy[1], MII_GEN_CTL, value);
1da177e4
LT		 2503 }
2504
2505 /* Wait for 50 ms and powerup
2506 * This is abitrary. It is intended to make sure the
2507 * transceiver settles.
2508 */
c659c38b 2509 tlan_set_timer(dev, (HZ/20), TLAN_TIMER_PHY_PUP);
1da177e4 2510
c659c38b 2511}
1da177e4
LT		 2512
2513
2514
2515
c659c38b 2516static void tlan_phy_power_up(struct net_device *dev)
1da177e4 2517{
c659c38b 2518 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2519 u16 value;
2520
c659c38b
SA		 2521 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Powering up PHY.\n", dev->name);
2522 tlan_mii_sync(dev->base_addr);
1da177e4 2523 value = MII_GC_LOOPBK;
c659c38b
SA		 2524 tlan_mii_write_reg(dev, priv->phy[priv->phy_num], MII_GEN_CTL, value);
2525 tlan_mii_sync(dev->base_addr);
1da177e4
LT		 2526 /* Wait for 500 ms and reset the
2527 * transceiver. The TLAN docs say both 50 ms and
2528 * 500 ms, so do the longer, just in case.
2529 */
c659c38b 2530 tlan_set_timer(dev, (HZ/20), TLAN_TIMER_PHY_RESET);
1da177e4 2531
c659c38b 2532}
1da177e4
LT		 2533
2534
2535
2536
c659c38b 2537static void tlan_phy_reset(struct net_device *dev)
1da177e4 2538{
c659c38b 2539 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2540 u16 phy;
2541 u16 value;
2542
c659c38b 2543 phy = priv->phy[priv->phy_num];
1da177e4 2544
fd9071ec 2545 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Resetting PHY.\n", dev->name);
c659c38b 2546 tlan_mii_sync(dev->base_addr);
1da177e4 2547 value = MII_GC_LOOPBK | MII_GC_RESET;
c659c38b
SA		 2548 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, value);
2549 tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &value);
2550 while (value & MII_GC_RESET)
2551 tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &value);
1da177e4
LT		 2552
2553 /* Wait for 500 ms and initialize.
2554 * I don't remember why I wait this long.
2555 * I've changed this to 50ms, as it seems long enough.
2556 */
c659c38b 2557 tlan_set_timer(dev, (HZ/20), TLAN_TIMER_PHY_START_LINK);
1da177e4 2558
c659c38b 2559}
1da177e4
LT		 2560
2561
2562
2563
c659c38b 2564static void tlan_phy_start_link(struct net_device *dev)
1da177e4 2565{
c659c38b 2566 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2567 u16 ability;
2568 u16 control;
2569 u16 data;
2570 u16 phy;
2571 u16 status;
2572 u16 tctl;
2573
c659c38b
SA		 2574 phy = priv->phy[priv->phy_num];
2575 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Trying to activate link.\n", dev->name);
2576 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2577 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &ability);
1da177e4 2578
c659c38b
SA		 2579 if ((status & MII_GS_AUTONEG) &&
2580 (!priv->aui)) {
1da177e4 2581 ability = status >> 11;
c659c38b
SA		 2582 if (priv->speed == TLAN_SPEED_10 &&
2583 priv->duplex == TLAN_DUPLEX_HALF) {
2584 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x0000);
2585 } else if (priv->speed == TLAN_SPEED_10 &&
2586 priv->duplex == TLAN_DUPLEX_FULL) {
2587 priv->tlan_full_duplex = true;
2588 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x0100);
2589 } else if (priv->speed == TLAN_SPEED_100 &&
2590 priv->duplex == TLAN_DUPLEX_HALF) {
2591 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x2000);
2592 } else if (priv->speed == TLAN_SPEED_100 &&
2593 priv->duplex == TLAN_DUPLEX_FULL) {
2594 priv->tlan_full_duplex = true;
2595 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x2100);
1da177e4 2596 } else {
6aa20a22 2597
1da177e4 2598 /* Set Auto-Neg advertisement */
c659c38b
SA		 2599 tlan_mii_write_reg(dev, phy, MII_AN_ADV,
2600 (ability << 5) | 1);
1da177e4 2601 /* Enablee Auto-Neg */
c659c38b 2602 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x1000);
1da177e4 2603 /* Restart Auto-Neg */
c659c38b 2604 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x1200);
1da177e4 2605 /* Wait for 4 sec for autonegotiation
c659c38b
SA		 2606 * to complete. The max spec time is less than this
2607 * but the card need additional time to start AN.
2608 * .5 sec should be plenty extra.
2609 */
50624aab 2610 netdev_info(dev, "Starting autonegotiation\n");
c659c38b 2611 tlan_set_timer(dev, (2*HZ), TLAN_TIMER_PHY_FINISH_AN);
1da177e4
LT		 2612 return;
2613 }
6aa20a22
JG		 2614
2615 }
2616
c659c38b
SA		 2617 if ((priv->aui) && (priv->phy_num != 0)) {
2618 priv->phy_num = 0;
2619 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN
2620 | TLAN_NET_CFG_PHY_EN;
2621 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, data);
2622 tlan_set_timer(dev, (40*HZ/1000), TLAN_TIMER_PHY_PDOWN);
1da177e4 2623 return;
c659c38b 2624 } else if (priv->phy_num == 0) {
1da177e4 2625 control = 0;
c659c38b
SA		 2626 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tctl);
2627 if (priv->aui) {
2628 tctl |= TLAN_TC_AUISEL;
6aa20a22 2629 } else {
c659c38b
SA		 2630 tctl &= ~TLAN_TC_AUISEL;
2631 if (priv->duplex == TLAN_DUPLEX_FULL) {
1da177e4 2632 control |= MII_GC_DUPLEX;
c659c38b 2633 priv->tlan_full_duplex = true;
1da177e4 2634 }
c659c38b 2635 if (priv->speed == TLAN_SPEED_100)
1da177e4 2636 control |= MII_GC_SPEEDSEL;
1da177e4 2637 }
c659c38b
SA		 2638 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, control);
2639 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, tctl);
1da177e4
LT		 2640 }
2641
2642 /* Wait for 2 sec to give the transceiver time
2643 * to establish link.
2644 */
c659c38b 2645 tlan_set_timer(dev, (4*HZ), TLAN_TIMER_FINISH_RESET);
1da177e4 2646
c659c38b 2647}
1da177e4
LT		 2648
2649
2650
2651
c659c38b 2652static void tlan_phy_finish_auto_neg(struct net_device *dev)
1da177e4 2653{
c659c38b 2654 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2655 u16 an_adv;
2656 u16 an_lpa;
2657 u16 data;
2658 u16 mode;
2659 u16 phy;
2660 u16 status;
6aa20a22 2661
c659c38b 2662 phy = priv->phy[priv->phy_num];
1da177e4 2663
c659c38b
SA		 2664 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2665 udelay(1000);
2666 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
1da177e4 2667
c659c38b 2668 if (!(status & MII_GS_AUTOCMPLT)) {
1da177e4
LT		 2669 /* Wait for 8 sec to give the process
2670 * more time. Perhaps we should fail after a while.
2671 */
c659c38b 2672 if (!priv->neg_be_verbose++) {
50624aab
JP		 2673 pr_info("Giving autonegotiation more time.\n");
2674 pr_info("Please check that your adapter has\n");
2675 pr_info("been properly connected to a HUB or Switch.\n");
2676 pr_info("Trying to establish link in the background...\n");
c659c38b
SA		 2677 }
2678 tlan_set_timer(dev, (8*HZ), TLAN_TIMER_PHY_FINISH_AN);
1da177e4
LT		 2679 return;
2680 }
2681
50624aab 2682 netdev_info(dev, "Autonegotiation complete\n");
c659c38b
SA		 2683 tlan_mii_read_reg(dev, phy, MII_AN_ADV, &an_adv);
2684 tlan_mii_read_reg(dev, phy, MII_AN_LPA, &an_lpa);
1da177e4 2685 mode = an_adv & an_lpa & 0x03E0;
c659c38b
SA		 2686 if (mode & 0x0100)
2687 priv->tlan_full_duplex = true;
2688 else if (!(mode & 0x0080) && (mode & 0x0040))
2689 priv->tlan_full_duplex = true;
2690
2691 if ((!(mode & 0x0180)) &&
2692 (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10) &&
2693 (priv->phy_num != 0)) {
2694 priv->phy_num = 0;
2695 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN
2696 | TLAN_NET_CFG_PHY_EN;
2697 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, data);
2698 tlan_set_timer(dev, (400*HZ/1000), TLAN_TIMER_PHY_PDOWN);
1da177e4
LT		 2699 return;
2700 }
2701
c659c38b
SA		 2702 if (priv->phy_num == 0) {
2703 if ((priv->duplex == TLAN_DUPLEX_FULL) ||
2704 (an_adv & an_lpa & 0x0040)) {
2705 tlan_mii_write_reg(dev, phy, MII_GEN_CTL,
2706 MII_GC_AUTOENB | MII_GC_DUPLEX);
50624aab 2707 netdev_info(dev, "Starting internal PHY with FULL-DUPLEX\n");
1da177e4 2708 } else {
c659c38b
SA		 2709 tlan_mii_write_reg(dev, phy, MII_GEN_CTL,
2710 MII_GC_AUTOENB);
50624aab 2711 netdev_info(dev, "Starting internal PHY with HALF-DUPLEX\n");
1da177e4
LT		 2712 }
2713 }
2714
2715 /* Wait for 100 ms. No reason in partiticular.
2716 */
c659c38b 2717 tlan_set_timer(dev, (HZ/10), TLAN_TIMER_FINISH_RESET);
6aa20a22 2718
c659c38b 2719}
1da177e4
LT		 2720
2721#ifdef MONITOR
2722
c659c38b
SA		 2723/*********************************************************************
2724 *
2725 * tlan_phy_monitor
2726 *
2727 * Returns:
2728 * None
2729 *
2730 * Params:
2731 * dev The device structure of this device.
2732 *
2733 *
2734 * This function monitors PHY condition by reading the status
2735 * register via the MII bus. This can be used to give info
2736 * about link changes (up/down), and possible switch to alternate
2737 * media.
2738 *
2739 *******************************************************************/
2740
2741void tlan_phy_monitor(struct net_device *dev)
1da177e4 2742{
c659c38b 2743 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2744 u16 phy;
2745 u16 phy_status;
2746
c659c38b 2747 phy = priv->phy[priv->phy_num];
1da177e4 2748
c659c38b
SA		 2749 /* Get PHY status register */
2750 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &phy_status);
1da177e4 2751
c659c38b
SA		 2752 /* Check if link has been lost */
2753 if (!(phy_status & MII_GS_LINK)) {
2754 if (priv->link) {
2755 priv->link = 0;
2756 printk(KERN_DEBUG "TLAN: %s has lost link\n",
2757 dev->name);
2758 netif_carrier_off(dev);
2759 tlan_set_timer(dev, (2*HZ), TLAN_TIMER_LINK_BEAT);
2760 return;
1da177e4
LT		 2761 }
2762 }
2763
c659c38b
SA		 2764 /* Link restablished? */
2765 if ((phy_status & MII_GS_LINK) && !priv->link) {
2766 priv->link = 1;
2767 printk(KERN_DEBUG "TLAN: %s has reestablished link\n",
2768 dev->name);
7d17c1d6 2769 netif_carrier_on(dev);
c659c38b 2770 }
1da177e4
LT		 2771
2772 /* Setup a new monitor */
c659c38b 2773 tlan_set_timer(dev, (2*HZ), TLAN_TIMER_LINK_BEAT);
6aa20a22 2774}
1da177e4
LT		 2775
2776#endif /* MONITOR */
2777
2778
2779/*****************************************************************************
2780******************************************************************************
2781
c659c38b 2782ThunderLAN driver MII routines
1da177e4 2783
c659c38b
SA		 2784these routines are based on the information in chap. 2 of the
2785"ThunderLAN Programmer's Guide", pp. 15-24.
1da177e4
LT		 2786
2787******************************************************************************
2788*****************************************************************************/
2789
2790
c659c38b
SA		 2791/***************************************************************
2792 * tlan_mii_read_reg
2793 *
2794 * Returns:
2795 * false if ack received ok
2796 * true if no ack received or other error
2797 *
2798 * Parms:
2799 * dev The device structure containing
2800 * The io address and interrupt count
2801 * for this device.
2802 * phy The address of the PHY to be queried.
2803 * reg The register whose contents are to be
2804 * retrieved.
2805 * val A pointer to a variable to store the
2806 * retrieved value.
2807 *
2808 * This function uses the TLAN's MII bus to retrieve the contents
2809 * of a given register on a PHY. It sends the appropriate info
2810 * and then reads the 16-bit register value from the MII bus via
2811 * the TLAN SIO register.
2812 *
2813 **************************************************************/
2814
2815static bool
2816tlan_mii_read_reg(struct net_device *dev, u16 phy, u16 reg, u16 *val)
1da177e4
LT		 2817{
2818 u8 nack;
2819 u16 sio, tmp;
c659c38b 2820 u32 i;
37fce430 2821 bool err;
1da177e4 2822 int minten;
c659c38b 2823 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2824 unsigned long flags = 0;
2825
37fce430 2826 err = false;
1da177e4
LT		 2827 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
2828 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
6aa20a22 2829
1da177e4
LT		 2830 if (!in_irq())
2831 spin_lock_irqsave(&priv->lock, flags);
2832
c659c38b 2833 tlan_mii_sync(dev->base_addr);
1da177e4 2834
c659c38b
SA		 2835 minten = tlan_get_bit(TLAN_NET_SIO_MINTEN, sio);
2836 if (minten)
2837 tlan_clear_bit(TLAN_NET_SIO_MINTEN, sio);
1da177e4 2838
c659c38b
SA		 2839 tlan_mii_send_data(dev->base_addr, 0x1, 2); /* start (01b) */
2840 tlan_mii_send_data(dev->base_addr, 0x2, 2); /* read (10b) */
2841 tlan_mii_send_data(dev->base_addr, phy, 5); /* device # */
2842 tlan_mii_send_data(dev->base_addr, reg, 5); /* register # */
1da177e4
LT		 2843
2844
c659c38b 2845 tlan_clear_bit(TLAN_NET_SIO_MTXEN, sio); /* change direction */
1da177e4 2846
c659c38b
SA		 2847 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* clock idle bit */
2848 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
2849 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* wait 300ns */
1da177e4 2850
c659c38b
SA		 2851 nack = tlan_get_bit(TLAN_NET_SIO_MDATA, sio); /* check for ACK */
2852 tlan_set_bit(TLAN_NET_SIO_MCLK, sio); /* finish ACK */
2853 if (nack) { /* no ACK, so fake it */
1da177e4 2854 for (i = 0; i < 16; i++) {
c659c38b
SA		 2855 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2856 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2857 }
2858 tmp = 0xffff;
37fce430 2859 err = true;
1da177e4
LT		 2860 } else { /* ACK, so read data */
2861 for (tmp = 0, i = 0x8000; i; i >>= 1) {
c659c38b
SA		 2862 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2863 if (tlan_get_bit(TLAN_NET_SIO_MDATA, sio))
1da177e4 2864 tmp |= i;
c659c38b 2865 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2866 }
2867 }
2868
2869
c659c38b
SA		 2870 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* idle cycle */
2871 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4 2872
c659c38b
SA		 2873 if (minten)
2874 tlan_set_bit(TLAN_NET_SIO_MINTEN, sio);
1da177e4
LT		 2875
2876 *val = tmp;
6aa20a22 2877
1da177e4
LT		 2878 if (!in_irq())
2879 spin_unlock_irqrestore(&priv->lock, flags);
2880
2881 return err;
2882
c659c38b 2883}
1da177e4
LT		 2884
2885
2886
2887
c659c38b
SA		 2888/***************************************************************
2889 * tlan_mii_send_data
2890 *
2891 * Returns:
2892 * Nothing
2893 * Parms:
2894 * base_port The base IO port of the adapter in
2895 * question.
2896 * dev The address of the PHY to be queried.
2897 * data The value to be placed on the MII bus.
2898 * num_bits The number of bits in data that are to
2899 * be placed on the MII bus.
2900 *
2901 * This function sends on sequence of bits on the MII
2902 * configuration bus.
2903 *
2904 **************************************************************/
1da177e4 2905
c659c38b 2906static void tlan_mii_send_data(u16 base_port, u32 data, unsigned num_bits)
1da177e4
LT		 2907{
2908 u16 sio;
2909 u32 i;
2910
c659c38b 2911 if (num_bits == 0)
1da177e4
LT		 2912 return;
2913
c659c38b 2914 outw(TLAN_NET_SIO, base_port + TLAN_DIO_ADR);
1da177e4 2915 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
c659c38b 2916 tlan_set_bit(TLAN_NET_SIO_MTXEN, sio);
1da177e4 2917
c659c38b
SA		 2918 for (i = (0x1 << (num_bits - 1)); i; i >>= 1) {
2919 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2920 (void) tlan_get_bit(TLAN_NET_SIO_MCLK, sio);
2921 if (data & i)
2922 tlan_set_bit(TLAN_NET_SIO_MDATA, sio);
1da177e4 2923 else
c659c38b
SA		 2924 tlan_clear_bit(TLAN_NET_SIO_MDATA, sio);
2925 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
2926 (void) tlan_get_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2927 }
2928
c659c38b 2929}
1da177e4
LT		 2930
2931
2932
2933
c659c38b
SA		 2934/***************************************************************
2935 * TLan_MiiSync
2936 *
2937 * Returns:
2938 * Nothing
2939 * Parms:
2940 * base_port The base IO port of the adapter in
2941 * question.
2942 *
2943 * This functions syncs all PHYs in terms of the MII configuration
2944 * bus.
2945 *
2946 **************************************************************/
1da177e4 2947
c659c38b 2948static void tlan_mii_sync(u16 base_port)
1da177e4
LT		 2949{
2950 int i;
2951 u16 sio;
2952
c659c38b 2953 outw(TLAN_NET_SIO, base_port + TLAN_DIO_ADR);
1da177e4
LT		 2954 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
2955
c659c38b
SA		 2956 tlan_clear_bit(TLAN_NET_SIO_MTXEN, sio);
2957 for (i = 0; i < 32; i++) {
2958 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2959 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2960 }
2961
c659c38b 2962}
1da177e4
LT		 2963
2964
2965
2966
c659c38b
SA		 2967/***************************************************************
2968 * tlan_mii_write_reg
2969 *
2970 * Returns:
2971 * Nothing
2972 * Parms:
2973 * dev The device structure for the device
2974 * to write to.
2975 * phy The address of the PHY to be written to.
2976 * reg The register whose contents are to be
2977 * written.
2978 * val The value to be written to the register.
2979 *
2980 * This function uses the TLAN's MII bus to write the contents of a
2981 * given register on a PHY. It sends the appropriate info and then
2982 * writes the 16-bit register value from the MII configuration bus
2983 * via the TLAN SIO register.
2984 *
2985 **************************************************************/
1da177e4 2986
c659c38b
SA		 2987static void
2988tlan_mii_write_reg(struct net_device *dev, u16 phy, u16 reg, u16 val)
1da177e4
LT		 2989{
2990 u16 sio;
2991 int minten;
2992 unsigned long flags = 0;
c659c38b 2993 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2994
2995 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
2996 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
6aa20a22 2997
1da177e4
LT		 2998 if (!in_irq())
2999 spin_lock_irqsave(&priv->lock, flags);
3000
c659c38b 3001 tlan_mii_sync(dev->base_addr);
1da177e4 3002
c659c38b
SA		 3003 minten = tlan_get_bit(TLAN_NET_SIO_MINTEN, sio);
3004 if (minten)
3005 tlan_clear_bit(TLAN_NET_SIO_MINTEN, sio);
1da177e4 3006
c659c38b
SA		 3007 tlan_mii_send_data(dev->base_addr, 0x1, 2); /* start (01b) */
3008 tlan_mii_send_data(dev->base_addr, 0x1, 2); /* write (01b) */
3009 tlan_mii_send_data(dev->base_addr, phy, 5); /* device # */
3010 tlan_mii_send_data(dev->base_addr, reg, 5); /* register # */
1da177e4 3011
c659c38b
SA		 3012 tlan_mii_send_data(dev->base_addr, 0x2, 2); /* send ACK */
3013 tlan_mii_send_data(dev->base_addr, val, 16); /* send data */
1da177e4 3014
c659c38b
SA		 3015 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* idle cycle */
3016 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4 3017
c659c38b
SA		 3018 if (minten)
3019 tlan_set_bit(TLAN_NET_SIO_MINTEN, sio);
6aa20a22 3020
1da177e4
LT		 3021 if (!in_irq())
3022 spin_unlock_irqrestore(&priv->lock, flags);
3023
c659c38b 3024}
1da177e4
LT		 3025
3026
3027
3028
3029/*****************************************************************************
3030******************************************************************************
3031
c659c38b 3032ThunderLAN driver eeprom routines
1da177e4 3033
c659c38b
SA		 3034the Compaq netelligent 10 and 10/100 cards use a microchip 24C02A
3035EEPROM. these functions are based on information in microchip's
3036data sheet. I don't know how well this functions will work with
3037other Eeproms.
1da177e4
LT		 3038
3039******************************************************************************
3040*****************************************************************************/
3041
3042
c659c38b
SA		 3043/***************************************************************
3044 * tlan_ee_send_start
3045 *
3046 * Returns:
3047 * Nothing
3048 * Parms:
3049 * io_base The IO port base address for the
3050 * TLAN device with the EEPROM to
3051 * use.
3052 *
3053 * This function sends a start cycle to an EEPROM attached
3054 * to a TLAN chip.
3055 *
3056 **************************************************************/
3057
3058static void tlan_ee_send_start(u16 io_base)
1da177e4
LT		 3059{
3060 u16 sio;
3061
c659c38b 3062 outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
1da177e4
LT		 3063 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3064
c659c38b
SA		 3065 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3066 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
3067 tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
3068 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3069 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
3070
3071}
3072
3073
3074
3075
3076/***************************************************************
3077 * tlan_ee_send_byte
3078 *
3079 * Returns:
3080 * If the correct ack was received, 0, otherwise 1
3081 * Parms: io_base The IO port base address for the
3082 * TLAN device with the EEPROM to
3083 * use.
3084 * data The 8 bits of information to
3085 * send to the EEPROM.
3086 * stop If TLAN_EEPROM_STOP is passed, a
3087 * stop cycle is sent after the
3088 * byte is sent after the ack is
3089 * read.
3090 *
3091 * This function sends a byte on the serial EEPROM line,
3092 * driving the clock to send each bit. The function then
3093 * reverses transmission direction and reads an acknowledge
3094 * bit.
3095 *
3096 **************************************************************/
3097
3098static int tlan_ee_send_byte(u16 io_base, u8 data, int stop)
1da177e4
LT		 3099{
3100 int err;
3101 u8 place;
3102 u16 sio;
3103
c659c38b 3104 outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
1da177e4
LT		 3105 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3106
3107 /* Assume clock is low, tx is enabled; */
c659c38b
SA		 3108 for (place = 0x80; place != 0; place >>= 1) {
3109 if (place & data)
3110 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
1da177e4 3111 else
c659c38b
SA		 3112 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3113 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3114 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
1da177e4 3115 }
c659c38b
SA		 3116 tlan_clear_bit(TLAN_NET_SIO_ETXEN, sio);
3117 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3118 err = tlan_get_bit(TLAN_NET_SIO_EDATA, sio);
3119 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
3120 tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
1da177e4 3121
c659c38b 3122 if ((!err) && stop) {
dfc2c0a6 3123 /* STOP, raise data while clock is high */
c659c38b
SA		 3124 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3125 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3126 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
1da177e4
LT		 3127 }
3128
807540ba 3129 return err;
1da177e4 3130
c659c38b
SA		 3131}
3132
3133
3134
3135
3136/***************************************************************
3137 * tlan_ee_receive_byte
3138 *
3139 * Returns:
3140 * Nothing
3141 * Parms:
3142 * io_base The IO port base address for the
3143 * TLAN device with the EEPROM to
3144 * use.
3145 * data An address to a char to hold the
3146 * data sent from the EEPROM.
3147 * stop If TLAN_EEPROM_STOP is passed, a
3148 * stop cycle is sent after the
3149 * byte is received, and no ack is
3150 * sent.
3151 *
3152 * This function receives 8 bits of data from the EEPROM
3153 * over the serial link. It then sends and ack bit, or no
3154 * ack and a stop bit. This function is used to retrieve
3155 * data after the address of a byte in the EEPROM has been
3156 * sent.
3157 *
3158 **************************************************************/
3159
3160static void tlan_ee_receive_byte(u16 io_base, u8 *data, int stop)
1da177e4
LT		 3161{
3162 u8 place;
3163 u16 sio;
3164
c659c38b 3165 outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
1da177e4
LT		 3166 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3167 *data = 0;
3168
3169 /* Assume clock is low, tx is enabled; */
c659c38b
SA		 3170 tlan_clear_bit(TLAN_NET_SIO_ETXEN, sio);
3171 for (place = 0x80; place; place >>= 1) {
3172 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3173 if (tlan_get_bit(TLAN_NET_SIO_EDATA, sio))
1da177e4 3174 *data |= place;
c659c38b 3175 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
1da177e4
LT		 3176 }
3177
c659c38b
SA		 3178 tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
3179 if (!stop) {
3180 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio); /* ack = 0 */
3181 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3182 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
1da177e4 3183 } else {
c659c38b
SA		 3184 tlan_set_bit(TLAN_NET_SIO_EDATA, sio); /* no ack = 1 (?) */
3185 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3186 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
dfc2c0a6 3187 /* STOP, raise data while clock is high */
c659c38b
SA		 3188 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3189 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3190 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
3191 }
3192
3193}
3194
3195
3196
3197
3198/***************************************************************
3199 * tlan_ee_read_byte
3200 *
3201 * Returns:
3202 * No error = 0, else, the stage at which the error
3203 * occurred.
3204 * Parms:
3205 * io_base The IO port base address for the
3206 * TLAN device with the EEPROM to
3207 * use.
3208 * ee_addr The address of the byte in the
3209 * EEPROM whose contents are to be
3210 * retrieved.
3211 * data An address to a char to hold the
3212 * data obtained from the EEPROM.
3213 *
3214 * This function reads a byte of information from an byte
3215 * cell in the EEPROM.
3216 *
3217 **************************************************************/
3218
3219static int tlan_ee_read_byte(struct net_device *dev, u8 ee_addr, u8 *data)
1da177e4
LT		 3220{
3221 int err;
c659c38b 3222 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 3223 unsigned long flags = 0;
c659c38b 3224 int ret = 0;
1da177e4
LT		 3225
3226 spin_lock_irqsave(&priv->lock, flags);
3227
c659c38b
SA		 3228 tlan_ee_send_start(dev->base_addr);
3229 err = tlan_ee_send_byte(dev->base_addr, 0xa0, TLAN_EEPROM_ACK);
3230 if (err) {
3231 ret = 1;
1da177e4
LT		 3232 goto fail;
3233 }
c659c38b
SA		 3234 err = tlan_ee_send_byte(dev->base_addr, ee_addr, TLAN_EEPROM_ACK);
3235 if (err) {
3236 ret = 2;
1da177e4
LT		 3237 goto fail;
3238 }
c659c38b
SA		 3239 tlan_ee_send_start(dev->base_addr);
3240 err = tlan_ee_send_byte(dev->base_addr, 0xa1, TLAN_EEPROM_ACK);
3241 if (err) {
3242 ret = 3;
1da177e4
LT		 3243 goto fail;
3244 }
c659c38b 3245 tlan_ee_receive_byte(dev->base_addr, data, TLAN_EEPROM_STOP);
1da177e4
LT		 3246fail:
3247 spin_unlock_irqrestore(&priv->lock, flags);
3248
3249 return ret;
3250
c659c38b 3251}
1da177e4
LT		 3252
3253
3254
Linux kernel - Deliverables
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