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drivers/net: Remove alloc_etherdev error messages
[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
RF		 230 addr = tag->buffer[9].address;
231 addr |= (tag->buffer[8].address << 16) << 16;
1da177e4
LT		 232 return (struct sk_buff *) addr;
233}
234
c659c38b
SA		 235static u32
236(*tlan_int_vector[TLAN_INT_NUMBER_OF_INTS])(struct net_device *, u16) = {
a3ccc789 237 NULL,
c659c38b
SA		 238 tlan_handle_tx_eof,
239 tlan_handle_stat_overflow,
240 tlan_handle_rx_eof,
241 tlan_handle_dummy,
242 tlan_handle_tx_eoc,
243 tlan_handle_status_check,
244 tlan_handle_rx_eoc
1da177e4
LT		 245};
246
247static inline void
c659c38b 248tlan_set_timer(struct net_device *dev, u32 ticks, u32 type)
1da177e4 249{
c659c38b 250 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 251 unsigned long flags = 0;
6aa20a22 252
1da177e4
LT		 253 if (!in_irq())
254 spin_lock_irqsave(&priv->lock, flags);
c659c38b
SA		 255 if (priv->timer.function != NULL &&
256 priv->timer_type != TLAN_TIMER_ACTIVITY) {
1da177e4
LT		 257 if (!in_irq())
258 spin_unlock_irqrestore(&priv->lock, flags);
259 return;
260 }
c659c38b 261 priv->timer.function = tlan_timer;
1da177e4
LT		 262 if (!in_irq())
263 spin_unlock_irqrestore(&priv->lock, flags);
264
265 priv->timer.data = (unsigned long) dev;
c659c38b
SA		 266 priv->timer_set_at = jiffies;
267 priv->timer_type = type;
1da177e4 268 mod_timer(&priv->timer, jiffies + ticks);
6aa20a22 269
c659c38b 270}
1da177e4
LT		 271
272
273/*****************************************************************************
274******************************************************************************
275
c659c38b 276ThunderLAN driver primary functions
1da177e4 277
c659c38b 278these functions are more or less common to all linux network drivers.
1da177e4
LT		 279
280******************************************************************************
281*****************************************************************************/
282
283
284
285
286
c659c38b
SA		 287/***************************************************************
288 * tlan_remove_one
289 *
290 * Returns:
291 * Nothing
292 * Parms:
293 * None
294 *
295 * Goes through the TLanDevices list and frees the device
296 * structs and memory associated with each device (lists
297 * and buffers). It also ureserves the IO port regions
298 * associated with this device.
299 *
300 **************************************************************/
1da177e4
LT		 301
302
c659c38b 303static void __devexit tlan_remove_one(struct pci_dev *pdev)
1da177e4 304{
c659c38b
SA		 305 struct net_device *dev = pci_get_drvdata(pdev);
306 struct tlan_priv *priv = netdev_priv(dev);
6aa20a22 307
c659c38b 308 unregister_netdev(dev);
1da177e4 309
c659c38b
SA		 310 if (priv->dma_storage) {
311 pci_free_consistent(priv->pci_dev,
312 priv->dma_size, priv->dma_storage,
313 priv->dma_storage_dma);
1da177e4
LT		 314 }
315
316#ifdef CONFIG_PCI
317 pci_release_regions(pdev);
318#endif
6aa20a22 319
c659c38b 320 free_netdev(dev);
6aa20a22 321
c659c38b 322 pci_set_drvdata(pdev, NULL);
6aa20a22 323}
1da177e4 324
fa6d5d4f
SA		 325static void tlan_start(struct net_device *dev)
326{
327 tlan_reset_lists(dev);
328 /* NOTE: It might not be necessary to read the stats before a
329 reset if you don't care what the values are.
330 */
331 tlan_read_and_clear_stats(dev, TLAN_IGNORE);
332 tlan_reset_adapter(dev);
333 netif_wake_queue(dev);
334}
335
336static void tlan_stop(struct net_device *dev)
337{
338 struct tlan_priv *priv = netdev_priv(dev);
339
340 tlan_read_and_clear_stats(dev, TLAN_RECORD);
341 outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD);
342 /* Reset and power down phy */
343 tlan_reset_adapter(dev);
344 if (priv->timer.function != NULL) {
345 del_timer_sync(&priv->timer);
346 priv->timer.function = NULL;
347 }
348}
349
350#ifdef CONFIG_PM
351
352static int tlan_suspend(struct pci_dev *pdev, pm_message_t state)
353{
354 struct net_device *dev = pci_get_drvdata(pdev);
355
356 if (netif_running(dev))
357 tlan_stop(dev);
358
359 netif_device_detach(dev);
360 pci_save_state(pdev);
361 pci_disable_device(pdev);
362 pci_wake_from_d3(pdev, false);
363 pci_set_power_state(pdev, PCI_D3hot);
364
365 return 0;
366}
367
368static int tlan_resume(struct pci_dev *pdev)
369{
370 struct net_device *dev = pci_get_drvdata(pdev);
371
372 pci_set_power_state(pdev, PCI_D0);
373 pci_restore_state(pdev);
374 pci_enable_wake(pdev, 0, 0);
375 netif_device_attach(dev);
376
377 if (netif_running(dev))
378 tlan_start(dev);
379
380 return 0;
381}
382
383#else /* CONFIG_PM */
384
385#define tlan_suspend NULL
386#define tlan_resume NULL
387
388#endif /* CONFIG_PM */
389
390
1da177e4
LT		 391static struct pci_driver tlan_driver = {
392 .name = "tlan",
393 .id_table = tlan_pci_tbl,
394 .probe = tlan_init_one,
6aa20a22 395 .remove = __devexit_p(tlan_remove_one),
fa6d5d4f
SA		 396 .suspend = tlan_suspend,
397 .resume = tlan_resume,
1da177e4
LT		 398};
399
400static int __init tlan_probe(void)
401{
6c04a515 402 int rc = -ENODEV;
6aa20a22 403
50624aab 404 pr_info("%s", tlan_banner);
6aa20a22 405
1da177e4 406 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n");
6aa20a22 407
1da177e4
LT		 408 /* Use new style PCI probing. Now the kernel will
409 do most of this for us */
6c04a515
LP		 410 rc = pci_register_driver(&tlan_driver);
411
412 if (rc != 0) {
50624aab 413 pr_err("Could not register pci driver\n");
6c04a515
LP		 414 goto err_out_pci_free;
415 }
1da177e4
LT		 416
417 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n");
c659c38b 418 tlan_eisa_probe();
6aa20a22 419
50624aab
JP		 420 pr_info("%d device%s installed, PCI: %d EISA: %d\n",
421 tlan_devices_installed, tlan_devices_installed == 1 ? "" : "s",
422 tlan_have_pci, tlan_have_eisa);
1da177e4 423
c659c38b 424 if (tlan_devices_installed == 0) {
6c04a515
LP		 425 rc = -ENODEV;
426 goto err_out_pci_unreg;
1da177e4
LT		 427 }
428 return 0;
6c04a515
LP		 429
430err_out_pci_unreg:
431 pci_unregister_driver(&tlan_driver);
432err_out_pci_free:
6c04a515 433 return rc;
1da177e4 434}
6aa20a22 435
1da177e4 436
c659c38b
SA		 437static int __devinit tlan_init_one(struct pci_dev *pdev,
438 const struct pci_device_id *ent)
1da177e4 439{
c659c38b 440 return tlan_probe1(pdev, -1, -1, 0, ent);
1da177e4
LT		 441}
442
443
444/*
c659c38b
SA		 445***************************************************************
446* tlan_probe1
447*
448* Returns:
449* 0 on success, error code on error
450* Parms:
451* none
452*
453* The name is lower case to fit in with all the rest of
454* the netcard_probe names. This function looks for
455* another TLan based adapter, setting it up with the
456* allocated device struct if one is found.
457* tlan_probe has been ported to the new net API and
458* now allocates its own device structure. This function
459* is also used by modules.
460*
461**************************************************************/
462
463static int __devinit tlan_probe1(struct pci_dev *pdev,
dfc2c0a6 464 long ioaddr, int irq, int rev,
c659c38b 465 const struct pci_device_id *ent)
1da177e4
LT		 466{
467
468 struct net_device *dev;
c659c38b 469 struct tlan_priv *priv;
1da177e4
LT		 470 u16 device_id;
471 int reg, rc = -ENODEV;
472
ad9f6713 473#ifdef CONFIG_PCI
1da177e4
LT		 474 if (pdev) {
475 rc = pci_enable_device(pdev);
476 if (rc)
477 return rc;
478
c659c38b 479 rc = pci_request_regions(pdev, tlan_signature);
1da177e4 480 if (rc) {
50624aab 481 pr_err("Could not reserve IO regions\n");
1da177e4
LT		 482 goto err_out;
483 }
484 }
ad9f6713 485#endif /* CONFIG_PCI */
1da177e4 486
c659c38b 487 dev = alloc_etherdev(sizeof(struct tlan_priv));
1da177e4 488 if (dev == NULL) {
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);
536 priv->is_eisa = 1;
537 if (device_id == 0x20F1) {
c659c38b
SA		 538 priv->adapter = &board_info[13]; /* NetFlex-3/E */
539 priv->adapter_rev = 23; /* TLAN 2.3 */
1da177e4
LT		 540 } else {
541 priv->adapter = &board_info[14];
c659c38b 542 priv->adapter_rev = 10; /* TLAN 1.0 */
1da177e4
LT		 543 }
544 dev->base_addr = ioaddr;
545 dev->irq = irq;
546 }
547
548 /* Kernel parameters */
549 if (dev->mem_start) {
550 priv->aui = dev->mem_start & 0x01;
dfc2c0a6
SH		 551 priv->duplex = ((dev->mem_start & 0x06) == 0x06) ? 0
552 : (dev->mem_start & 0x06) >> 1;
553 priv->speed = ((dev->mem_start & 0x18) == 0x18) ? 0
554 : (dev->mem_start & 0x18) >> 3;
6aa20a22 555
c659c38b 556 if (priv->speed == 0x1)
1da177e4 557 priv->speed = TLAN_SPEED_10;
c659c38b 558 else if (priv->speed == 0x2)
1da177e4 559 priv->speed = TLAN_SPEED_100;
c659c38b 560
1da177e4
LT		 561 debug = priv->debug = dev->mem_end;
562 } else {
563 priv->aui = aui[boards_found];
564 priv->speed = speed[boards_found];
565 priv->duplex = duplex[boards_found];
566 priv->debug = debug;
567 }
6aa20a22 568
1da177e4
LT		 569 /* This will be used when we get an adapter error from
570 * within our irq handler */
c659c38b 571 INIT_WORK(&priv->tlan_tqueue, tlan_tx_timeout_work);
1da177e4
LT		 572
573 spin_lock_init(&priv->lock);
6aa20a22 574
c659c38b 575 rc = tlan_init(dev);
1da177e4 576 if (rc) {
50624aab 577 pr_err("Could not set up device\n");
1da177e4
LT		 578 goto err_out_free_dev;
579 }
580
581 rc = register_netdev(dev);
582 if (rc) {
50624aab 583 pr_err("Could not register device\n");
1da177e4
LT		 584 goto err_out_uninit;
585 }
586
6aa20a22 587
c659c38b 588 tlan_devices_installed++;
1da177e4 589 boards_found++;
6aa20a22 590
1da177e4
LT		 591 /* pdev is NULL if this is an EISA device */
592 if (pdev)
593 tlan_have_pci++;
594 else {
c659c38b
SA		 595 priv->next_device = tlan_eisa_devices;
596 tlan_eisa_devices = dev;
1da177e4
LT		 597 tlan_have_eisa++;
598 }
6aa20a22 599
50624aab
JP		 600 netdev_info(dev, "irq=%2d, io=%04x, %s, Rev. %d\n",
601 (int)dev->irq,
602 (int)dev->base_addr,
603 priv->adapter->device_label,
604 priv->adapter_rev);
1da177e4
LT		 605 return 0;
606
607err_out_uninit:
c659c38b
SA		 608 pci_free_consistent(priv->pci_dev, priv->dma_size, priv->dma_storage,
609 priv->dma_storage_dma);
1da177e4
LT		 610err_out_free_dev:
611 free_netdev(dev);
612err_out_regions:
613#ifdef CONFIG_PCI
614 if (pdev)
615 pci_release_regions(pdev);
616#endif
617err_out:
618 if (pdev)
619 pci_disable_device(pdev);
620 return rc;
621}
622
623
c659c38b 624static void tlan_eisa_cleanup(void)
1da177e4
LT		 625{
626 struct net_device *dev;
c659c38b 627 struct tlan_priv *priv;
6aa20a22 628
c659c38b
SA		 629 while (tlan_have_eisa) {
630 dev = tlan_eisa_devices;
1da177e4 631 priv = netdev_priv(dev);
c659c38b
SA		 632 if (priv->dma_storage) {
633 pci_free_consistent(priv->pci_dev, priv->dma_size,
634 priv->dma_storage,
635 priv->dma_storage_dma);
1da177e4 636 }
c659c38b
SA		 637 release_region(dev->base_addr, 0x10);
638 unregister_netdev(dev);
639 tlan_eisa_devices = priv->next_device;
640 free_netdev(dev);
1da177e4
LT		 641 tlan_have_eisa--;
642 }
643}
6aa20a22
JG		 644
645
1da177e4
LT		 646static void __exit tlan_exit(void)
647{
648 pci_unregister_driver(&tlan_driver);
649
650 if (tlan_have_eisa)
c659c38b 651 tlan_eisa_cleanup();
1da177e4 652
1da177e4
LT		 653}
654
655
656/* Module loading/unloading */
657module_init(tlan_probe);
658module_exit(tlan_exit);
659
660
661
c659c38b
SA		 662/**************************************************************
663 * tlan_eisa_probe
664 *
665 * Returns: 0 on success, 1 otherwise
666 *
667 * Parms: None
668 *
669 *
670 * This functions probes for EISA devices and calls
671 * TLan_probe1 when one is found.
672 *
673 *************************************************************/
1da177e4 674
c659c38b 675static void __init tlan_eisa_probe(void)
1da177e4 676{
c659c38b
SA		 677 long ioaddr;
678 int rc = -ENODEV;
679 int irq;
1da177e4
LT		 680 u16 device_id;
681
6aa20a22 682 if (!EISA_bus) {
1da177e4
LT		 683 TLAN_DBG(TLAN_DEBUG_PROBE, "No EISA bus present\n");
684 return;
685 }
6aa20a22 686
1da177e4
LT		 687 /* Loop through all slots of the EISA bus */
688 for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) {
6aa20a22 689
c659c38b
SA		 690 TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n",
691 (int) ioaddr + 0xc80, inw(ioaddr + EISA_ID));
692 TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n",
693 (int) ioaddr + 0xc82, inw(ioaddr + EISA_ID2));
1da177e4
LT		 694
695
c659c38b
SA		 696 TLAN_DBG(TLAN_DEBUG_PROBE,
697 "Probing for EISA adapter at IO: 0x%4x : ",
698 (int) ioaddr);
699 if (request_region(ioaddr, 0x10, tlan_signature) == NULL)
1da177e4
LT		 700 goto out;
701
6aa20a22 702 if (inw(ioaddr + EISA_ID) != 0x110E) {
1da177e4
LT		 703 release_region(ioaddr, 0x10);
704 goto out;
705 }
6aa20a22 706
1da177e4 707 device_id = inw(ioaddr + EISA_ID2);
6aa20a22 708 if (device_id != 0x20F1 && device_id != 0x40F1) {
c659c38b 709 release_region(ioaddr, 0x10);
1da177e4
LT		 710 goto out;
711 }
6aa20a22 712
c659c38b
SA		 713 /* check if adapter is enabled */
714 if (inb(ioaddr + EISA_CR) != 0x1) {
715 release_region(ioaddr, 0x10);
1da177e4
LT		 716 goto out2;
717 }
6aa20a22
JG		 718
719 if (debug == 0x10)
50624aab 720 pr_info("Found one\n");
1da177e4
LT		 721
722
723 /* Get irq from board */
c659c38b
SA		 724 switch (inb(ioaddr + 0xcc0)) {
725 case(0x10):
726 irq = 5;
727 break;
728 case(0x20):
729 irq = 9;
730 break;
731 case(0x40):
732 irq = 10;
733 break;
734 case(0x80):
735 irq = 11;
736 break;
737 default:
738 goto out;
6aa20a22
JG		 739 }
740
741
1da177e4 742 /* Setup the newly found eisa adapter */
c659c38b
SA		 743 rc = tlan_probe1(NULL, ioaddr, irq,
744 12, NULL);
1da177e4 745 continue;
6aa20a22 746
c659c38b
SA		 747out:
748 if (debug == 0x10)
50624aab 749 pr_info("None found\n");
c659c38b 750 continue;
1da177e4 751
c659c38b
SA		 752out2:
753 if (debug == 0x10)
50624aab 754 pr_info("Card found but it is not enabled, skipping\n");
c659c38b 755 continue;
6aa20a22 756
1da177e4
LT		 757 }
758
c659c38b 759}
1da177e4
LT		 760
761#ifdef CONFIG_NET_POLL_CONTROLLER
c659c38b 762static void tlan_poll(struct net_device *dev)
1da177e4
LT		 763{
764 disable_irq(dev->irq);
c659c38b 765 tlan_handle_interrupt(dev->irq, dev);
1da177e4
LT		 766 enable_irq(dev->irq);
767}
768#endif
769
c659c38b
SA		 770static const struct net_device_ops tlan_netdev_ops = {
771 .ndo_open = tlan_open,
772 .ndo_stop = tlan_close,
773 .ndo_start_xmit = tlan_start_tx,
774 .ndo_tx_timeout = tlan_tx_timeout,
775 .ndo_get_stats = tlan_get_stats,
afc4b13d 776 .ndo_set_rx_mode = tlan_set_multicast_list,
c659c38b 777 .ndo_do_ioctl = tlan_ioctl,
391c5e6e 778 .ndo_change_mtu = eth_change_mtu,
c659c38b 779 .ndo_set_mac_address = eth_mac_addr,
391c5e6e
SH		 780 .ndo_validate_addr = eth_validate_addr,
781#ifdef CONFIG_NET_POLL_CONTROLLER
c659c38b 782 .ndo_poll_controller = tlan_poll,
391c5e6e
SH		 783#endif
784};
6aa20a22 785
1da177e4
LT		 786
787
c659c38b
SA		 788/***************************************************************
789 * tlan_init
790 *
791 * Returns:
792 * 0 on success, error code otherwise.
793 * Parms:
794 * dev The structure of the device to be
795 * init'ed.
796 *
797 * This function completes the initialization of the
798 * device structure and driver. It reserves the IO
799 * addresses, allocates memory for the lists and bounce
800 * buffers, retrieves the MAC address from the eeprom
801 * and assignes the device's methods.
802 *
803 **************************************************************/
804
805static int tlan_init(struct net_device *dev)
1da177e4
LT		 806{
807 int dma_size;
c659c38b 808 int err;
1da177e4 809 int i;
c659c38b 810 struct tlan_priv *priv;
1da177e4
LT		 811
812 priv = netdev_priv(dev);
6aa20a22 813
c659c38b
SA		 814 dma_size = (TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS)
815 * (sizeof(struct tlan_list));
816 priv->dma_storage = pci_alloc_consistent(priv->pci_dev,
817 dma_size,
818 &priv->dma_storage_dma);
819 priv->dma_size = dma_size;
820
821 if (priv->dma_storage == NULL) {
50624aab 822 pr_err("Could not allocate lists and buffers for %s\n",
c659c38b 823 dev->name);
1da177e4
LT		 824 return -ENOMEM;
825 }
c659c38b
SA		 826 memset(priv->dma_storage, 0, dma_size);
827 priv->rx_list = (struct tlan_list *)
828 ALIGN((unsigned long)priv->dma_storage, 8);
829 priv->rx_list_dma = ALIGN(priv->dma_storage_dma, 8);
830 priv->tx_list = priv->rx_list + TLAN_NUM_RX_LISTS;
831 priv->tx_list_dma =
832 priv->rx_list_dma + sizeof(struct tlan_list)*TLAN_NUM_RX_LISTS;
93e16847 833
1da177e4 834 err = 0;
c659c38b
SA		 835 for (i = 0; i < 6 ; i++)
836 err |= tlan_ee_read_byte(dev,
837 (u8) priv->adapter->addr_ofs + i,
838 (u8 *) &dev->dev_addr[i]);
839 if (err) {
50624aab
JP		 840 pr_err("%s: Error reading MAC from eeprom: %d\n",
841 dev->name, err);
1da177e4
LT		 842 }
843 dev->addr_len = 6;
844
845 netif_carrier_off(dev);
846
847 /* Device methods */
c659c38b 848 dev->netdev_ops = &tlan_netdev_ops;
1da177e4
LT		 849 dev->watchdog_timeo = TX_TIMEOUT;
850
851 return 0;
852
c659c38b 853}
1da177e4
LT		 854
855
856
857
c659c38b
SA		 858/***************************************************************
859 * tlan_open
860 *
861 * Returns:
862 * 0 on success, error code otherwise.
863 * Parms:
864 * dev Structure of device to be opened.
865 *
866 * This routine puts the driver and TLAN adapter in a
867 * state where it is ready to send and receive packets.
868 * It allocates the IRQ, resets and brings the adapter
869 * out of reset, and allows interrupts. It also delays
870 * the startup for autonegotiation or sends a Rx GO
871 * command to the adapter, as appropriate.
872 *
873 **************************************************************/
1da177e4 874
c659c38b 875static int tlan_open(struct net_device *dev)
1da177e4 876{
c659c38b 877 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 878 int err;
6aa20a22 879
c659c38b
SA		 880 priv->tlan_rev = tlan_dio_read8(dev->base_addr, TLAN_DEF_REVISION);
881 err = request_irq(dev->irq, tlan_handle_interrupt, IRQF_SHARED,
882 dev->name, dev);
6aa20a22 883
c659c38b 884 if (err) {
50624aab
JP		 885 netdev_err(dev, "Cannot open because IRQ %d is already in use\n",
886 dev->irq);
1da177e4
LT		 887 return err;
888 }
6aa20a22 889
1da177e4 890 init_timer(&priv->timer);
6aa20a22 891
fa6d5d4f 892 tlan_start(dev);
1da177e4 893
c659c38b
SA		 894 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %x\n",
895 dev->name, priv->tlan_rev);
1da177e4
LT		 896
897 return 0;
898
c659c38b 899}
1da177e4
LT		 900
901
902
c659c38b
SA		 903/**************************************************************
904 * tlan_ioctl
905 *
906 * Returns:
907 * 0 on success, error code otherwise
908 * Params:
909 * dev structure of device to receive ioctl.
910 *
911 * rq ifreq structure to hold userspace data.
912 *
913 * cmd ioctl command.
914 *
915 *
916 *************************************************************/
1da177e4 917
c659c38b 918static int tlan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1da177e4 919{
c659c38b 920 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 921 struct mii_ioctl_data *data = if_mii(rq);
c659c38b 922 u32 phy = priv->phy[priv->phy_num];
6aa20a22 923
c659c38b 924 if (!priv->phy_online)
1da177e4
LT		 925 return -EAGAIN;
926
c659c38b
SA		 927 switch (cmd) {
928 case SIOCGMIIPHY: /* get address of MII PHY in use. */
929 data->phy_id = phy;
1da177e4
LT		 930
931
c659c38b
SA		 932 case SIOCGMIIREG: /* read MII PHY register. */
933 tlan_mii_read_reg(dev, data->phy_id & 0x1f,
934 data->reg_num & 0x1f, &data->val_out);
935 return 0;
6aa20a22 936
1da177e4 937
c659c38b
SA		 938 case SIOCSMIIREG: /* write MII PHY register. */
939 tlan_mii_write_reg(dev, data->phy_id & 0x1f,
940 data->reg_num & 0x1f, data->val_in);
941 return 0;
942 default:
943 return -EOPNOTSUPP;
1da177e4 944 }
c659c38b 945}
1da177e4
LT		 946
947
c659c38b
SA		 948/***************************************************************
949 * tlan_tx_timeout
950 *
951 * Returns: nothing
952 *
953 * Params:
954 * dev structure of device which timed out
955 * during transmit.
956 *
957 **************************************************************/
1da177e4 958
c659c38b 959static void tlan_tx_timeout(struct net_device *dev)
1da177e4 960{
6aa20a22 961
c659c38b 962 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Transmit timed out.\n", dev->name);
6aa20a22 963
1da177e4 964 /* Ok so we timed out, lets see what we can do about it...*/
c659c38b
SA		 965 tlan_free_lists(dev);
966 tlan_reset_lists(dev);
967 tlan_read_and_clear_stats(dev, TLAN_IGNORE);
968 tlan_reset_adapter(dev);
1ae5dc34 969 dev->trans_start = jiffies; /* prevent tx timeout */
c659c38b 970 netif_wake_queue(dev);
1da177e4
LT		 971
972}
6aa20a22 973
1da177e4 974
c659c38b
SA		 975/***************************************************************
976 * tlan_tx_timeout_work
977 *
978 * Returns: nothing
979 *
980 * Params:
981 * work work item of device which timed out
982 *
983 **************************************************************/
c4028958 984
c659c38b 985static void tlan_tx_timeout_work(struct work_struct *work)
c4028958 986{
c659c38b
SA		 987 struct tlan_priv *priv =
988 container_of(work, struct tlan_priv, tlan_tqueue);
c4028958 989
c659c38b 990 tlan_tx_timeout(priv->dev);
c4028958
DH		 991}
992
993
1da177e4 994
c659c38b
SA		 995/***************************************************************
996 * tlan_start_tx
997 *
998 * Returns:
999 * 0 on success, non-zero on failure.
1000 * Parms:
1001 * skb A pointer to the sk_buff containing the
1002 * frame to be sent.
1003 * dev The device to send the data on.
1004 *
1005 * This function adds a frame to the Tx list to be sent
1006 * ASAP. First it verifies that the adapter is ready and
1007 * there is room in the queue. Then it sets up the next
1008 * available list, copies the frame to the corresponding
1009 * buffer. If the adapter Tx channel is idle, it gives
1010 * the adapter a Tx Go command on the list, otherwise it
1011 * sets the forward address of the previous list to point
1012 * to this one. Then it frees the sk_buff.
1013 *
1014 **************************************************************/
1015
1016static netdev_tx_t tlan_start_tx(struct sk_buff *skb, struct net_device *dev)
1da177e4 1017{
c659c38b 1018 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1019 dma_addr_t tail_list_phys;
c659c38b 1020 struct tlan_list *tail_list;
1da177e4 1021 unsigned long flags;
8953f128 1022 unsigned int txlen;
1da177e4 1023
c659c38b
SA		 1024 if (!priv->phy_online) {
1025 TLAN_DBG(TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n",
1026 dev->name);
1da177e4 1027 dev_kfree_skb_any(skb);
6ed10654 1028 return NETDEV_TX_OK;
1da177e4
LT		 1029 }
1030
41873e9a 1031 if (skb_padto(skb, TLAN_MIN_FRAME_SIZE))
6ed10654 1032 return NETDEV_TX_OK;
8953f128 1033 txlen = max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE);
41873e9a 1034
c659c38b
SA		 1035 tail_list = priv->tx_list + priv->tx_tail;
1036 tail_list_phys =
1037 priv->tx_list_dma + sizeof(struct tlan_list)*priv->tx_tail;
6aa20a22 1038
c659c38b
SA		 1039 if (tail_list->c_stat != TLAN_CSTAT_UNUSED) {
1040 TLAN_DBG(TLAN_DEBUG_TX,
1041 "TRANSMIT: %s is busy (Head=%d Tail=%d)\n",
1042 dev->name, priv->tx_head, priv->tx_tail);
1da177e4 1043 netif_stop_queue(dev);
c659c38b 1044 priv->tx_busy_count++;
5b548140 1045 return NETDEV_TX_BUSY;
1da177e4
LT		 1046 }
1047
1048 tail_list->forward = 0;
1049
c659c38b 1050 tail_list->buffer[0].address = pci_map_single(priv->pci_dev,
5eeabf51
SA		 1051 skb->data, txlen,
1052 PCI_DMA_TODEVICE);
c659c38b 1053 tlan_store_skb(tail_list, skb);
1da177e4 1054
c659c38b 1055 tail_list->frame_size = (u16) txlen;
8953f128 1056 tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) txlen;
41873e9a
SH		 1057 tail_list->buffer[1].count = 0;
1058 tail_list->buffer[1].address = 0;
1da177e4
LT		 1059
1060 spin_lock_irqsave(&priv->lock, flags);
c659c38b
SA		 1061 tail_list->c_stat = TLAN_CSTAT_READY;
1062 if (!priv->tx_in_progress) {
1063 priv->tx_in_progress = 1;
1064 TLAN_DBG(TLAN_DEBUG_TX,
1065 "TRANSMIT: Starting TX on buffer %d\n",
1066 priv->tx_tail);
1067 outl(tail_list_phys, dev->base_addr + TLAN_CH_PARM);
1068 outl(TLAN_HC_GO, dev->base_addr + TLAN_HOST_CMD);
1da177e4 1069 } else {
c659c38b
SA		 1070 TLAN_DBG(TLAN_DEBUG_TX,
1071 "TRANSMIT: Adding buffer %d to TX channel\n",
1072 priv->tx_tail);
1073 if (priv->tx_tail == 0) {
1074 (priv->tx_list + (TLAN_NUM_TX_LISTS - 1))->forward
dfc2c0a6 1075 = tail_list_phys;
1da177e4 1076 } else {
c659c38b 1077 (priv->tx_list + (priv->tx_tail - 1))->forward
dfc2c0a6 1078 = tail_list_phys;
1da177e4
LT		 1079 }
1080 }
1081 spin_unlock_irqrestore(&priv->lock, flags);
1082
c659c38b 1083 CIRC_INC(priv->tx_tail, TLAN_NUM_TX_LISTS);
1da177e4 1084
6ed10654 1085 return NETDEV_TX_OK;
1da177e4 1086
c659c38b 1087}
1da177e4
LT		 1088
1089
1090
1091
c659c38b
SA		 1092/***************************************************************
1093 * tlan_handle_interrupt
1094 *
1095 * Returns:
1096 * Nothing
1097 * Parms:
1098 * irq The line on which the interrupt
1099 * occurred.
1100 * dev_id A pointer to the device assigned to
1101 * this irq line.
1102 *
1103 * This function handles an interrupt generated by its
1104 * assigned TLAN adapter. The function deactivates
1105 * interrupts on its adapter, records the type of
1106 * interrupt, executes the appropriate subhandler, and
1107 * acknowdges the interrupt to the adapter (thus
1108 * re-enabling adapter interrupts.
1109 *
1110 **************************************************************/
1da177e4 1111
c659c38b 1112static irqreturn_t tlan_handle_interrupt(int irq, void *dev_id)
1da177e4 1113{
a3ccc789 1114 struct net_device *dev = dev_id;
c659c38b 1115 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1116 u16 host_int;
a3ccc789 1117 u16 type;
1da177e4
LT		 1118
1119 spin_lock(&priv->lock);
1120
c659c38b
SA		 1121 host_int = inw(dev->base_addr + TLAN_HOST_INT);
1122 type = (host_int & TLAN_HI_IT_MASK) >> 2;
1123 if (type) {
a3ccc789
SH		 1124 u32 ack;
1125 u32 host_cmd;
1da177e4 1126
c659c38b
SA		 1127 outw(host_int, dev->base_addr + TLAN_HOST_INT);
1128 ack = tlan_int_vector[type](dev, host_int);
1da177e4 1129
c659c38b
SA		 1130 if (ack) {
1131 host_cmd = TLAN_HC_ACK | ack | (type << 18);
1132 outl(host_cmd, dev->base_addr + TLAN_HOST_CMD);
a3ccc789 1133 }
1da177e4
LT		 1134 }
1135
1136 spin_unlock(&priv->lock);
1137
a3ccc789 1138 return IRQ_RETVAL(type);
c659c38b 1139}
1da177e4
LT		 1140
1141
1142
1143
c659c38b
SA		 1144/***************************************************************
1145 * tlan_close
1146 *
1147 * Returns:
1148 * An error code.
1149 * Parms:
1150 * dev The device structure of the device to
1151 * close.
1152 *
1153 * This function shuts down the adapter. It records any
1154 * stats, puts the adapter into reset state, deactivates
1155 * its time as needed, and frees the irq it is using.
1156 *
1157 **************************************************************/
1da177e4 1158
c659c38b 1159static int tlan_close(struct net_device *dev)
1da177e4 1160{
c659c38b 1161 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1162
1da177e4 1163 priv->neg_be_verbose = 0;
fa6d5d4f 1164 tlan_stop(dev);
6aa20a22 1165
c659c38b
SA		 1166 free_irq(dev->irq, dev);
1167 tlan_free_lists(dev);
1168 TLAN_DBG(TLAN_DEBUG_GNRL, "Device %s closed.\n", dev->name);
1da177e4
LT		 1169
1170 return 0;
1171
c659c38b 1172}
1da177e4
LT		 1173
1174
1175
1176
c659c38b
SA		 1177/***************************************************************
1178 * tlan_get_stats
1179 *
1180 * Returns:
1181 * A pointer to the device's statistics structure.
1182 * Parms:
1183 * dev The device structure to return the
1184 * stats for.
1185 *
1186 * This function updates the devices statistics by reading
1187 * the TLAN chip's onboard registers. Then it returns the
1188 * address of the statistics structure.
1189 *
1190 **************************************************************/
1da177e4 1191
c659c38b 1192static struct net_device_stats *tlan_get_stats(struct net_device *dev)
1da177e4 1193{
c659c38b 1194 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1195 int i;
1196
1197 /* Should only read stats if open ? */
c659c38b 1198 tlan_read_and_clear_stats(dev, TLAN_RECORD);
1da177e4 1199
c659c38b
SA		 1200 TLAN_DBG(TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %d\n", dev->name,
1201 priv->rx_eoc_count);
1202 TLAN_DBG(TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %d\n", dev->name,
1203 priv->tx_busy_count);
1204 if (debug & TLAN_DEBUG_GNRL) {
1205 tlan_print_dio(dev->base_addr);
1206 tlan_phy_print(dev);
1da177e4 1207 }
c659c38b
SA		 1208 if (debug & TLAN_DEBUG_LIST) {
1209 for (i = 0; i < TLAN_NUM_RX_LISTS; i++)
1210 tlan_print_list(priv->rx_list + i, "RX", i);
1211 for (i = 0; i < TLAN_NUM_TX_LISTS; i++)
1212 tlan_print_list(priv->tx_list + i, "TX", i);
1da177e4 1213 }
6aa20a22 1214
f8f31544 1215 return &dev->stats;
1da177e4 1216
c659c38b 1217}
1da177e4
LT		 1218
1219
1220
1221
c659c38b
SA		 1222/***************************************************************
1223 * tlan_set_multicast_list
1224 *
1225 * Returns:
1226 * Nothing
1227 * Parms:
1228 * dev The device structure to set the
1229 * multicast list for.
1230 *
1231 * This function sets the TLAN adaptor to various receive
1232 * modes. If the IFF_PROMISC flag is set, promiscuous
1233 * mode is acitviated. Otherwise, promiscuous mode is
1234 * turned off. If the IFF_ALLMULTI flag is set, then
1235 * the hash table is set to receive all group addresses.
1236 * Otherwise, the first three multicast addresses are
1237 * stored in AREG_1-3, and the rest are selected via the
1238 * hash table, as necessary.
1239 *
1240 **************************************************************/
1da177e4 1241
c659c38b 1242static void tlan_set_multicast_list(struct net_device *dev)
6aa20a22 1243{
22bedad3 1244 struct netdev_hw_addr *ha;
1da177e4
LT		 1245 u32 hash1 = 0;
1246 u32 hash2 = 0;
1247 int i;
1248 u32 offset;
1249 u8 tmp;
1250
c659c38b
SA		 1251 if (dev->flags & IFF_PROMISC) {
1252 tmp = tlan_dio_read8(dev->base_addr, TLAN_NET_CMD);
1253 tlan_dio_write8(dev->base_addr,
1254 TLAN_NET_CMD, tmp | TLAN_NET_CMD_CAF);
1da177e4 1255 } else {
c659c38b
SA		 1256 tmp = tlan_dio_read8(dev->base_addr, TLAN_NET_CMD);
1257 tlan_dio_write8(dev->base_addr,
1258 TLAN_NET_CMD, tmp & ~TLAN_NET_CMD_CAF);
1259 if (dev->flags & IFF_ALLMULTI) {
1260 for (i = 0; i < 3; i++)
1261 tlan_set_mac(dev, i + 1, NULL);
1262 tlan_dio_write32(dev->base_addr, TLAN_HASH_1,
1263 0xffffffff);
1264 tlan_dio_write32(dev->base_addr, TLAN_HASH_2,
1265 0xffffffff);
1da177e4 1266 } else {
567ec874 1267 i = 0;
22bedad3 1268 netdev_for_each_mc_addr(ha, dev) {
c659c38b
SA		 1269 if (i < 3) {
1270 tlan_set_mac(dev, i + 1,
22bedad3 1271 (char *) &ha->addr);
1da177e4 1272 } else {
c659c38b
SA		 1273 offset =
1274 tlan_hash_func((u8 *)&ha->addr);
1275 if (offset < 32)
1276 hash1 |= (1 << offset);
1da177e4 1277 else
c659c38b 1278 hash2 |= (1 << (offset - 32));
1da177e4 1279 }
567ec874 1280 i++;
1da177e4 1281 }
c659c38b
SA		 1282 for ( ; i < 3; i++)
1283 tlan_set_mac(dev, i + 1, NULL);
1284 tlan_dio_write32(dev->base_addr, TLAN_HASH_1, hash1);
1285 tlan_dio_write32(dev->base_addr, TLAN_HASH_2, hash2);
1da177e4
LT		 1286 }
1287 }
1288
c659c38b 1289}
1da177e4
LT		 1290
1291
1292
1293/*****************************************************************************
1294******************************************************************************
1295
c659c38b 1296ThunderLAN driver interrupt vectors and table
1da177e4 1297
c659c38b
SA		 1298please see chap. 4, "Interrupt Handling" of the "ThunderLAN
1299Programmer's Guide" for more informations on handling interrupts
1300generated by TLAN based adapters.
1da177e4
LT		 1301
1302******************************************************************************
1303*****************************************************************************/
1304
1305
1da177e4
LT		 1306
1307
c659c38b
SA		 1308/***************************************************************
1309 * tlan_handle_tx_eof
1310 *
1311 * Returns:
1312 * 1
1313 * Parms:
1314 * dev Device assigned the IRQ that was
1315 * raised.
1316 * host_int The contents of the HOST_INT
1317 * port.
1318 *
1319 * This function handles Tx EOF interrupts which are raised
1320 * by the adapter when it has completed sending the
1321 * contents of a buffer. If detemines which list/buffer
1322 * was completed and resets it. If the buffer was the last
1323 * in the channel (EOC), then the function checks to see if
1324 * another buffer is ready to send, and if so, sends a Tx
1325 * Go command. Finally, the driver activates/continues the
1326 * activity LED.
1327 *
1328 **************************************************************/
1329
1330static u32 tlan_handle_tx_eof(struct net_device *dev, u16 host_int)
1da177e4 1331{
c659c38b 1332 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1333 int eoc = 0;
c659c38b 1334 struct tlan_list *head_list;
1da177e4
LT		 1335 dma_addr_t head_list_phys;
1336 u32 ack = 0;
c659c38b 1337 u16 tmp_c_stat;
6aa20a22 1338
c659c38b
SA		 1339 TLAN_DBG(TLAN_DEBUG_TX,
1340 "TRANSMIT: Handling TX EOF (Head=%d Tail=%d)\n",
1341 priv->tx_head, priv->tx_tail);
1342 head_list = priv->tx_list + priv->tx_head;
1da177e4 1343
c659c38b
SA		 1344 while (((tmp_c_stat = head_list->c_stat) & TLAN_CSTAT_FRM_CMP)
1345 && (ack < 255)) {
1346 struct sk_buff *skb = tlan_get_skb(head_list);
5eeabf51 1347
1da177e4 1348 ack++;
c659c38b 1349 pci_unmap_single(priv->pci_dev, head_list->buffer[0].address,
5eeabf51
SA		 1350 max(skb->len,
1351 (unsigned int)TLAN_MIN_FRAME_SIZE),
1352 PCI_DMA_TODEVICE);
1353 dev_kfree_skb_any(skb);
1354 head_list->buffer[8].address = 0;
1355 head_list->buffer[9].address = 0;
6aa20a22 1356
c659c38b 1357 if (tmp_c_stat & TLAN_CSTAT_EOC)
1da177e4 1358 eoc = 1;
6aa20a22 1359
c659c38b 1360 dev->stats.tx_bytes += head_list->frame_size;
1da177e4 1361
c659c38b 1362 head_list->c_stat = TLAN_CSTAT_UNUSED;
6aa20a22 1363 netif_start_queue(dev);
c659c38b
SA		 1364 CIRC_INC(priv->tx_head, TLAN_NUM_TX_LISTS);
1365 head_list = priv->tx_list + priv->tx_head;
1da177e4
LT		 1366 }
1367
1368 if (!ack)
50624aab
JP		 1369 netdev_info(dev,
1370 "Received interrupt for uncompleted TX frame\n");
c659c38b
SA		 1371
1372 if (eoc) {
1373 TLAN_DBG(TLAN_DEBUG_TX,
1374 "TRANSMIT: handling TX EOC (Head=%d Tail=%d)\n",
1375 priv->tx_head, priv->tx_tail);
1376 head_list = priv->tx_list + priv->tx_head;
1377 head_list_phys = priv->tx_list_dma
1378 + sizeof(struct tlan_list)*priv->tx_head;
f45437ef
SA		 1379 if ((head_list->c_stat & TLAN_CSTAT_READY)
1380 == TLAN_CSTAT_READY) {
c659c38b 1381 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4
LT		 1382 ack |= TLAN_HC_GO;
1383 } else {
c659c38b 1384 priv->tx_in_progress = 0;
1da177e4
LT		 1385 }
1386 }
6aa20a22 1387
c659c38b
SA		 1388 if (priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED) {
1389 tlan_dio_write8(dev->base_addr,
1390 TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT);
1391 if (priv->timer.function == NULL) {
1392 priv->timer.function = tlan_timer;
1393 priv->timer.data = (unsigned long) dev;
1394 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
1395 priv->timer_set_at = jiffies;
1396 priv->timer_type = TLAN_TIMER_ACTIVITY;
1397 add_timer(&priv->timer);
1398 } else if (priv->timer_type == TLAN_TIMER_ACTIVITY) {
1399 priv->timer_set_at = jiffies;
1da177e4
LT		 1400 }
1401 }
1402
1403 return ack;
1404
c659c38b 1405}
1da177e4
LT		 1406
1407
1408
1409
c659c38b
SA		 1410/***************************************************************
1411 * TLan_HandleStatOverflow
1412 *
1413 * Returns:
1414 * 1
1415 * Parms:
1416 * dev Device assigned the IRQ that was
1417 * raised.
1418 * host_int The contents of the HOST_INT
1419 * port.
1420 *
1421 * This function handles the Statistics Overflow interrupt
1422 * which means that one or more of the TLAN statistics
1423 * registers has reached 1/2 capacity and needs to be read.
1424 *
1425 **************************************************************/
1da177e4 1426
c659c38b 1427static u32 tlan_handle_stat_overflow(struct net_device *dev, u16 host_int)
1da177e4 1428{
c659c38b 1429 tlan_read_and_clear_stats(dev, TLAN_RECORD);
1da177e4
LT		 1430
1431 return 1;
1432
c659c38b
SA		 1433}
1434
1435
1436
1437
1438/***************************************************************
1439 * TLan_HandleRxEOF
1440 *
1441 * Returns:
1442 * 1
1443 * Parms:
1444 * dev Device assigned the IRQ that was
1445 * raised.
1446 * host_int The contents of the HOST_INT
1447 * port.
1448 *
1449 * This function handles the Rx EOF interrupt which
1450 * indicates a frame has been received by the adapter from
1451 * the net and the frame has been transferred to memory.
1452 * The function determines the bounce buffer the frame has
1453 * been loaded into, creates a new sk_buff big enough to
1454 * hold the frame, and sends it to protocol stack. It
1455 * then resets the used buffer and appends it to the end
1456 * of the list. If the frame was the last in the Rx
1457 * channel (EOC), the function restarts the receive channel
1458 * by sending an Rx Go command to the adapter. Then it
1459 * activates/continues the activity LED.
1460 *
1461 **************************************************************/
1462
1463static u32 tlan_handle_rx_eof(struct net_device *dev, u16 host_int)
1da177e4 1464{
c659c38b 1465 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1466 u32 ack = 0;
1467 int eoc = 0;
c659c38b 1468 struct tlan_list *head_list;
1da177e4 1469 struct sk_buff *skb;
c659c38b
SA		 1470 struct tlan_list *tail_list;
1471 u16 tmp_c_stat;
1da177e4
LT		 1472 dma_addr_t head_list_phys;
1473
c659c38b
SA		 1474 TLAN_DBG(TLAN_DEBUG_RX, "RECEIVE: handling RX EOF (Head=%d Tail=%d)\n",
1475 priv->rx_head, priv->rx_tail);
1476 head_list = priv->rx_list + priv->rx_head;
1477 head_list_phys =
1478 priv->rx_list_dma + sizeof(struct tlan_list)*priv->rx_head;
6aa20a22 1479
c659c38b
SA		 1480 while (((tmp_c_stat = head_list->c_stat) & TLAN_CSTAT_FRM_CMP)
1481 && (ack < 255)) {
1482 dma_addr_t frame_dma = head_list->buffer[0].address;
1483 u32 frame_size = head_list->frame_size;
5eeabf51
SA		 1484 struct sk_buff *new_skb;
1485
1da177e4 1486 ack++;
c659c38b 1487 if (tmp_c_stat & TLAN_CSTAT_EOC)
1da177e4 1488 eoc = 1;
6aa20a22 1489
89d71a66
ED		 1490 new_skb = netdev_alloc_skb_ip_align(dev,
1491 TLAN_MAX_FRAME_SIZE + 5);
c659c38b 1492 if (!new_skb)
5eeabf51 1493 goto drop_and_reuse;
6aa20a22 1494
c659c38b
SA		 1495 skb = tlan_get_skb(head_list);
1496 pci_unmap_single(priv->pci_dev, frame_dma,
5eeabf51 1497 TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
c659c38b 1498 skb_put(skb, frame_size);
1da177e4 1499
c659c38b 1500 dev->stats.rx_bytes += frame_size;
1da177e4 1501
c659c38b
SA		 1502 skb->protocol = eth_type_trans(skb, dev);
1503 netif_rx(skb);
6aa20a22 1504
c659c38b
SA		 1505 head_list->buffer[0].address =
1506 pci_map_single(priv->pci_dev, new_skb->data,
1507 TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
93e16847 1508
c659c38b 1509 tlan_store_skb(head_list, new_skb);
dfc2c0a6 1510drop_and_reuse:
1da177e4 1511 head_list->forward = 0;
c659c38b
SA		 1512 head_list->c_stat = 0;
1513 tail_list = priv->rx_list + priv->rx_tail;
1da177e4
LT		 1514 tail_list->forward = head_list_phys;
1515
c659c38b
SA		 1516 CIRC_INC(priv->rx_head, TLAN_NUM_RX_LISTS);
1517 CIRC_INC(priv->rx_tail, TLAN_NUM_RX_LISTS);
1518 head_list = priv->rx_list + priv->rx_head;
1519 head_list_phys = priv->rx_list_dma
1520 + sizeof(struct tlan_list)*priv->rx_head;
1da177e4
LT		 1521 }
1522
1523 if (!ack)
50624aab
JP		 1524 netdev_info(dev,
1525 "Received interrupt for uncompleted RX frame\n");
c659c38b
SA		 1526
1527
1528 if (eoc) {
1529 TLAN_DBG(TLAN_DEBUG_RX,
1530 "RECEIVE: handling RX EOC (Head=%d Tail=%d)\n",
1531 priv->rx_head, priv->rx_tail);
1532 head_list = priv->rx_list + priv->rx_head;
1533 head_list_phys = priv->rx_list_dma
1534 + sizeof(struct tlan_list)*priv->rx_head;
1535 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4 1536 ack |= TLAN_HC_GO | TLAN_HC_RT;
c659c38b 1537 priv->rx_eoc_count++;
1da177e4
LT		 1538 }
1539
c659c38b
SA		 1540 if (priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED) {
1541 tlan_dio_write8(dev->base_addr,
1542 TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT);
1543 if (priv->timer.function == NULL) {
1544 priv->timer.function = tlan_timer;
1da177e4
LT		 1545 priv->timer.data = (unsigned long) dev;
1546 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
c659c38b
SA		 1547 priv->timer_set_at = jiffies;
1548 priv->timer_type = TLAN_TIMER_ACTIVITY;
1da177e4 1549 add_timer(&priv->timer);
c659c38b
SA		 1550 } else if (priv->timer_type == TLAN_TIMER_ACTIVITY) {
1551 priv->timer_set_at = jiffies;
1da177e4
LT		 1552 }
1553 }
1554
1da177e4
LT		 1555 return ack;
1556
c659c38b 1557}
1da177e4
LT		 1558
1559
1560
1561
c659c38b
SA		 1562/***************************************************************
1563 * tlan_handle_dummy
1564 *
1565 * Returns:
1566 * 1
1567 * Parms:
1568 * dev Device assigned the IRQ that was
1569 * raised.
1570 * host_int The contents of the HOST_INT
1571 * port.
1572 *
1573 * This function handles the Dummy interrupt, which is
1574 * raised whenever a test interrupt is generated by setting
1575 * the Req_Int bit of HOST_CMD to 1.
1576 *
1577 **************************************************************/
1da177e4 1578
c659c38b 1579static u32 tlan_handle_dummy(struct net_device *dev, u16 host_int)
1da177e4 1580{
50624aab 1581 netdev_info(dev, "Test interrupt\n");
1da177e4
LT		 1582 return 1;
1583
c659c38b 1584}
1da177e4
LT		 1585
1586
1587
1588
c659c38b
SA		 1589/***************************************************************
1590 * tlan_handle_tx_eoc
1591 *
1592 * Returns:
1593 * 1
1594 * Parms:
1595 * dev Device assigned the IRQ that was
1596 * raised.
1597 * host_int The contents of the HOST_INT
1598 * port.
1599 *
1600 * This driver is structured to determine EOC occurrences by
1601 * reading the CSTAT member of the list structure. Tx EOC
1602 * interrupts are disabled via the DIO INTDIS register.
1603 * However, TLAN chips before revision 3.0 didn't have this
1604 * functionality, so process EOC events if this is the
1605 * case.
1606 *
1607 **************************************************************/
1da177e4 1608
c659c38b 1609static u32 tlan_handle_tx_eoc(struct net_device *dev, u16 host_int)
1da177e4 1610{
c659c38b
SA		 1611 struct tlan_priv *priv = netdev_priv(dev);
1612 struct tlan_list *head_list;
1da177e4
LT		 1613 dma_addr_t head_list_phys;
1614 u32 ack = 1;
6aa20a22 1615
1da177e4 1616 host_int = 0;
c659c38b
SA		 1617 if (priv->tlan_rev < 0x30) {
1618 TLAN_DBG(TLAN_DEBUG_TX,
1619 "TRANSMIT: handling TX EOC (Head=%d Tail=%d) -- IRQ\n",
1620 priv->tx_head, priv->tx_tail);
1621 head_list = priv->tx_list + priv->tx_head;
1622 head_list_phys = priv->tx_list_dma
1623 + sizeof(struct tlan_list)*priv->tx_head;
f45437ef
SA		 1624 if ((head_list->c_stat & TLAN_CSTAT_READY)
1625 == TLAN_CSTAT_READY) {
1da177e4 1626 netif_stop_queue(dev);
c659c38b 1627 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4
LT		 1628 ack |= TLAN_HC_GO;
1629 } else {
c659c38b 1630 priv->tx_in_progress = 0;
1da177e4
LT		 1631 }
1632 }
1633
1634 return ack;
1635
c659c38b 1636}
1da177e4
LT		 1637
1638
1639
1640
c659c38b
SA		 1641/***************************************************************
1642 * tlan_handle_status_check
1643 *
1644 * Returns:
1645 * 0 if Adapter check, 1 if Network Status check.
1646 * Parms:
1647 * dev Device assigned the IRQ that was
1648 * raised.
1649 * host_int The contents of the HOST_INT
1650 * port.
1651 *
1652 * This function handles Adapter Check/Network Status
1653 * interrupts generated by the adapter. It checks the
1654 * vector in the HOST_INT register to determine if it is
1655 * an Adapter Check interrupt. If so, it resets the
1656 * adapter. Otherwise it clears the status registers
1657 * and services the PHY.
1658 *
1659 **************************************************************/
1da177e4 1660
c659c38b 1661static u32 tlan_handle_status_check(struct net_device *dev, u16 host_int)
6aa20a22 1662{
c659c38b 1663 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1664 u32 ack;
1665 u32 error;
1666 u8 net_sts;
1667 u32 phy;
1668 u16 tlphy_ctl;
1669 u16 tlphy_sts;
6aa20a22 1670
1da177e4 1671 ack = 1;
c659c38b
SA		 1672 if (host_int & TLAN_HI_IV_MASK) {
1673 netif_stop_queue(dev);
1674 error = inl(dev->base_addr + TLAN_CH_PARM);
50624aab 1675 netdev_info(dev, "Adaptor Error = 0x%x\n", error);
c659c38b
SA		 1676 tlan_read_and_clear_stats(dev, TLAN_RECORD);
1677 outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD);
1da177e4
LT		 1678
1679 schedule_work(&priv->tlan_tqueue);
1680
1681 netif_wake_queue(dev);
1682 ack = 0;
1683 } else {
c659c38b
SA		 1684 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Status Check\n", dev->name);
1685 phy = priv->phy[priv->phy_num];
1686
1687 net_sts = tlan_dio_read8(dev->base_addr, TLAN_NET_STS);
1688 if (net_sts) {
1689 tlan_dio_write8(dev->base_addr, TLAN_NET_STS, net_sts);
1690 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Net_Sts = %x\n",
1691 dev->name, (unsigned) net_sts);
1da177e4 1692 }
c659c38b
SA		 1693 if ((net_sts & TLAN_NET_STS_MIRQ) && (priv->phy_num == 0)) {
1694 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_STS, &tlphy_sts);
1695 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl);
1696 if (!(tlphy_sts & TLAN_TS_POLOK) &&
1697 !(tlphy_ctl & TLAN_TC_SWAPOL)) {
1698 tlphy_ctl |= TLAN_TC_SWAPOL;
1699 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL,
1700 tlphy_ctl);
1701 } else if ((tlphy_sts & TLAN_TS_POLOK) &&
1702 (tlphy_ctl & TLAN_TC_SWAPOL)) {
1703 tlphy_ctl &= ~TLAN_TC_SWAPOL;
1704 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL,
1705 tlphy_ctl);
1da177e4 1706 }
c659c38b
SA		 1707
1708 if (debug)
1709 tlan_phy_print(dev);
1da177e4
LT		 1710 }
1711 }
1712
1713 return ack;
1714
c659c38b 1715}
1da177e4
LT		 1716
1717
1718
1719
c659c38b
SA		 1720/***************************************************************
1721 * tlan_handle_rx_eoc
1722 *
1723 * Returns:
1724 * 1
1725 * Parms:
1726 * dev Device assigned the IRQ that was
1727 * raised.
1728 * host_int The contents of the HOST_INT
1729 * port.
1730 *
1731 * This driver is structured to determine EOC occurrences by
1732 * reading the CSTAT member of the list structure. Rx EOC
1733 * interrupts are disabled via the DIO INTDIS register.
1734 * However, TLAN chips before revision 3.0 didn't have this
1735 * CSTAT member or a INTDIS register, so if this chip is
1736 * pre-3.0, process EOC interrupts normally.
1737 *
1738 **************************************************************/
1da177e4 1739
c659c38b 1740static u32 tlan_handle_rx_eoc(struct net_device *dev, u16 host_int)
1da177e4 1741{
c659c38b 1742 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1743 dma_addr_t head_list_phys;
1744 u32 ack = 1;
1745
c659c38b
SA		 1746 if (priv->tlan_rev < 0x30) {
1747 TLAN_DBG(TLAN_DEBUG_RX,
1748 "RECEIVE: Handling RX EOC (head=%d tail=%d) -- IRQ\n",
1749 priv->rx_head, priv->rx_tail);
1750 head_list_phys = priv->rx_list_dma
1751 + sizeof(struct tlan_list)*priv->rx_head;
1752 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4 1753 ack |= TLAN_HC_GO | TLAN_HC_RT;
c659c38b 1754 priv->rx_eoc_count++;
1da177e4
LT		 1755 }
1756
1757 return ack;
1758
c659c38b 1759}
1da177e4
LT		 1760
1761
1762
1763
1764/*****************************************************************************
1765******************************************************************************
1766
c659c38b 1767ThunderLAN driver timer function
1da177e4
LT		 1768
1769******************************************************************************
1770*****************************************************************************/
1771
1772
c659c38b
SA		 1773/***************************************************************
1774 * tlan_timer
1775 *
1776 * Returns:
1777 * Nothing
1778 * Parms:
1779 * data A value given to add timer when
1780 * add_timer was called.
1781 *
1782 * This function handles timed functionality for the
1783 * TLAN driver. The two current timer uses are for
1784 * delaying for autonegotionation and driving the ACT LED.
1785 * - Autonegotiation requires being allowed about
1786 * 2 1/2 seconds before attempting to transmit a
1787 * packet. It would be a very bad thing to hang
1788 * the kernel this long, so the driver doesn't
1789 * allow transmission 'til after this time, for
1790 * certain PHYs. It would be much nicer if all
1791 * PHYs were interrupt-capable like the internal
1792 * PHY.
1793 * - The ACT LED, which shows adapter activity, is
1794 * driven by the driver, and so must be left on
1795 * for a short period to power up the LED so it
1796 * can be seen. This delay can be changed by
1797 * changing the TLAN_TIMER_ACT_DELAY in tlan.h,
1798 * if desired. 100 ms produces a slightly
1799 * sluggish response.
1800 *
1801 **************************************************************/
1802
1803static void tlan_timer(unsigned long data)
1da177e4
LT		 1804{
1805 struct net_device *dev = (struct net_device *) data;
c659c38b 1806 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1807 u32 elapsed;
1808 unsigned long flags = 0;
1809
1810 priv->timer.function = NULL;
1811
c659c38b 1812 switch (priv->timer_type) {
6aa20a22 1813#ifdef MONITOR
c659c38b
SA		 1814 case TLAN_TIMER_LINK_BEAT:
1815 tlan_phy_monitor(dev);
1816 break;
1da177e4 1817#endif
c659c38b
SA		 1818 case TLAN_TIMER_PHY_PDOWN:
1819 tlan_phy_power_down(dev);
1820 break;
1821 case TLAN_TIMER_PHY_PUP:
1822 tlan_phy_power_up(dev);
1823 break;
1824 case TLAN_TIMER_PHY_RESET:
1825 tlan_phy_reset(dev);
1826 break;
1827 case TLAN_TIMER_PHY_START_LINK:
1828 tlan_phy_start_link(dev);
1829 break;
1830 case TLAN_TIMER_PHY_FINISH_AN:
1831 tlan_phy_finish_auto_neg(dev);
1832 break;
1833 case TLAN_TIMER_FINISH_RESET:
1834 tlan_finish_reset(dev);
1835 break;
1836 case TLAN_TIMER_ACTIVITY:
1837 spin_lock_irqsave(&priv->lock, flags);
1838 if (priv->timer.function == NULL) {
1839 elapsed = jiffies - priv->timer_set_at;
1840 if (elapsed >= TLAN_TIMER_ACT_DELAY) {
1841 tlan_dio_write8(dev->base_addr,
1842 TLAN_LED_REG, TLAN_LED_LINK);
1843 } else {
1844 priv->timer.function = tlan_timer;
1845 priv->timer.expires = priv->timer_set_at
1846 + TLAN_TIMER_ACT_DELAY;
1847 spin_unlock_irqrestore(&priv->lock, flags);
1848 add_timer(&priv->timer);
1849 break;
1da177e4 1850 }
c659c38b
SA		 1851 }
1852 spin_unlock_irqrestore(&priv->lock, flags);
1853 break;
1854 default:
1855 break;
1da177e4
LT		 1856 }
1857
c659c38b 1858}
1da177e4
LT		 1859
1860
1861
1862
1863/*****************************************************************************
1864******************************************************************************
1865
c659c38b 1866ThunderLAN driver adapter related routines
1da177e4
LT		 1867
1868******************************************************************************
1869*****************************************************************************/
1870
1871
c659c38b
SA		 1872/***************************************************************
1873 * tlan_reset_lists
1874 *
1875 * Returns:
1876 * Nothing
1877 * Parms:
1878 * dev The device structure with the list
1879 * stuctures to be reset.
1880 *
1881 * This routine sets the variables associated with managing
1882 * the TLAN lists to their initial values.
1883 *
1884 **************************************************************/
1885
1886static void tlan_reset_lists(struct net_device *dev)
1da177e4 1887{
c659c38b 1888 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1889 int i;
c659c38b 1890 struct tlan_list *list;
1da177e4
LT		 1891 dma_addr_t list_phys;
1892 struct sk_buff *skb;
1da177e4 1893
c659c38b
SA		 1894 priv->tx_head = 0;
1895 priv->tx_tail = 0;
1896 for (i = 0; i < TLAN_NUM_TX_LISTS; i++) {
1897 list = priv->tx_list + i;
1898 list->c_stat = TLAN_CSTAT_UNUSED;
5eeabf51 1899 list->buffer[0].address = 0;
1da177e4
LT		 1900 list->buffer[2].count = 0;
1901 list->buffer[2].address = 0;
1902 list->buffer[8].address = 0;
1903 list->buffer[9].address = 0;
1904 }
1905
c659c38b
SA		 1906 priv->rx_head = 0;
1907 priv->rx_tail = TLAN_NUM_RX_LISTS - 1;
1908 for (i = 0; i < TLAN_NUM_RX_LISTS; i++) {
1909 list = priv->rx_list + i;
1910 list_phys = priv->rx_list_dma + sizeof(struct tlan_list)*i;
1911 list->c_stat = TLAN_CSTAT_READY;
1912 list->frame_size = TLAN_MAX_FRAME_SIZE;
1da177e4 1913 list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER;
89d71a66 1914 skb = netdev_alloc_skb_ip_align(dev, TLAN_MAX_FRAME_SIZE + 5);
c659c38b 1915 if (!skb) {
50624aab 1916 netdev_err(dev, "Out of memory for received data\n");
5eeabf51 1917 break;
1da177e4 1918 }
5eeabf51 1919
c659c38b 1920 list->buffer[0].address = pci_map_single(priv->pci_dev,
5eeabf51
SA		 1921 skb->data,
1922 TLAN_MAX_FRAME_SIZE,
1923 PCI_DMA_FROMDEVICE);
c659c38b 1924 tlan_store_skb(list, skb);
1da177e4
LT		 1925 list->buffer[1].count = 0;
1926 list->buffer[1].address = 0;
c659c38b 1927 list->forward = list_phys + sizeof(struct tlan_list);
9ded65a1
SH		 1928 }
1929
1930 /* in case ran out of memory early, clear bits */
1931 while (i < TLAN_NUM_RX_LISTS) {
c659c38b 1932 tlan_store_skb(priv->rx_list + i, NULL);
9ded65a1 1933 ++i;
1da177e4 1934 }
9ded65a1 1935 list->forward = 0;
1da177e4 1936
c659c38b 1937}
1da177e4
LT		 1938
1939
c659c38b 1940static void tlan_free_lists(struct net_device *dev)
1da177e4 1941{
c659c38b 1942 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1943 int i;
c659c38b 1944 struct tlan_list *list;
1da177e4
LT		 1945 struct sk_buff *skb;
1946
c659c38b
SA		 1947 for (i = 0; i < TLAN_NUM_TX_LISTS; i++) {
1948 list = priv->tx_list + i;
1949 skb = tlan_get_skb(list);
1950 if (skb) {
5eeabf51 1951 pci_unmap_single(
c659c38b 1952 priv->pci_dev,
5eeabf51
SA		 1953 list->buffer[0].address,
1954 max(skb->len,
1955 (unsigned int)TLAN_MIN_FRAME_SIZE),
1956 PCI_DMA_TODEVICE);
c659c38b 1957 dev_kfree_skb_any(skb);
5eeabf51
SA		 1958 list->buffer[8].address = 0;
1959 list->buffer[9].address = 0;
1da177e4 1960 }
5eeabf51 1961 }
1da177e4 1962
c659c38b
SA		 1963 for (i = 0; i < TLAN_NUM_RX_LISTS; i++) {
1964 list = priv->rx_list + i;
1965 skb = tlan_get_skb(list);
1966 if (skb) {
1967 pci_unmap_single(priv->pci_dev,
5eeabf51
SA		 1968 list->buffer[0].address,
1969 TLAN_MAX_FRAME_SIZE,
1970 PCI_DMA_FROMDEVICE);
c659c38b 1971 dev_kfree_skb_any(skb);
5eeabf51
SA		 1972 list->buffer[8].address = 0;
1973 list->buffer[9].address = 0;
1da177e4
LT		 1974 }
1975 }
c659c38b 1976}
1da177e4
LT		 1977
1978
1979
1980
c659c38b
SA		 1981/***************************************************************
1982 * tlan_print_dio
1983 *
1984 * Returns:
1985 * Nothing
1986 * Parms:
1987 * io_base Base IO port of the device of
1988 * which to print DIO registers.
1989 *
1990 * This function prints out all the internal (DIO)
1991 * registers of a TLAN chip.
1992 *
1993 **************************************************************/
1da177e4 1994
c659c38b 1995static void tlan_print_dio(u16 io_base)
1da177e4
LT		 1996{
1997 u32 data0, data1;
1998 int i;
1999
50624aab
JP		 2000 pr_info("Contents of internal registers for io base 0x%04hx\n",
2001 io_base);
2002 pr_info("Off. +0 +4\n");
c659c38b
SA		 2003 for (i = 0; i < 0x4C; i += 8) {
2004 data0 = tlan_dio_read32(io_base, i);
2005 data1 = tlan_dio_read32(io_base, i + 0x4);
50624aab 2006 pr_info("0x%02x 0x%08x 0x%08x\n", i, data0, data1);
1da177e4
LT		 2007 }
2008
c659c38b 2009}
1da177e4
LT		 2010
2011
2012
2013
c659c38b
SA		 2014/***************************************************************
2015 * TLan_PrintList
2016 *
2017 * Returns:
2018 * Nothing
2019 * Parms:
2020 * list A pointer to the struct tlan_list structure to
2021 * be printed.
2022 * type A string to designate type of list,
2023 * "Rx" or "Tx".
2024 * num The index of the list.
2025 *
2026 * This function prints out the contents of the list
2027 * pointed to by the list parameter.
2028 *
2029 **************************************************************/
1da177e4 2030
c659c38b 2031static void tlan_print_list(struct tlan_list *list, char *type, int num)
1da177e4
LT		 2032{
2033 int i;
2034
50624aab
JP		 2035 pr_info("%s List %d at %p\n", type, num, list);
2036 pr_info(" Forward = 0x%08x\n", list->forward);
2037 pr_info(" CSTAT = 0x%04hx\n", list->c_stat);
2038 pr_info(" Frame Size = 0x%04hx\n", list->frame_size);
c659c38b
SA		 2039 /* for (i = 0; i < 10; i++) { */
2040 for (i = 0; i < 2; i++) {
50624aab
JP		 2041 pr_info(" Buffer[%d].count, addr = 0x%08x, 0x%08x\n",
2042 i, list->buffer[i].count, list->buffer[i].address);
1da177e4
LT		 2043 }
2044
c659c38b 2045}
1da177e4
LT		 2046
2047
2048
2049
c659c38b
SA		 2050/***************************************************************
2051 * tlan_read_and_clear_stats
2052 *
2053 * Returns:
2054 * Nothing
2055 * Parms:
2056 * dev Pointer to device structure of adapter
2057 * to which to read stats.
2058 * record Flag indicating whether to add
2059 *
2060 * This functions reads all the internal status registers
2061 * of the TLAN chip, which clears them as a side effect.
2062 * It then either adds the values to the device's status
2063 * struct, or discards them, depending on whether record
2064 * is TLAN_RECORD (!=0) or TLAN_IGNORE (==0).
2065 *
2066 **************************************************************/
1da177e4 2067
c659c38b 2068static void tlan_read_and_clear_stats(struct net_device *dev, int record)
1da177e4 2069{
1da177e4
LT		 2070 u32 tx_good, tx_under;
2071 u32 rx_good, rx_over;
2072 u32 def_tx, crc, code;
2073 u32 multi_col, single_col;
2074 u32 excess_col, late_col, loss;
2075
c659c38b
SA		 2076 outw(TLAN_GOOD_TX_FRMS, dev->base_addr + TLAN_DIO_ADR);
2077 tx_good = inb(dev->base_addr + TLAN_DIO_DATA);
2078 tx_good += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2079 tx_good += inb(dev->base_addr + TLAN_DIO_DATA + 2) << 16;
2080 tx_under = inb(dev->base_addr + TLAN_DIO_DATA + 3);
2081
2082 outw(TLAN_GOOD_RX_FRMS, dev->base_addr + TLAN_DIO_ADR);
2083 rx_good = inb(dev->base_addr + TLAN_DIO_DATA);
2084 rx_good += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2085 rx_good += inb(dev->base_addr + TLAN_DIO_DATA + 2) << 16;
2086 rx_over = inb(dev->base_addr + TLAN_DIO_DATA + 3);
2087
2088 outw(TLAN_DEFERRED_TX, dev->base_addr + TLAN_DIO_ADR);
2089 def_tx = inb(dev->base_addr + TLAN_DIO_DATA);
2090 def_tx += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2091 crc = inb(dev->base_addr + TLAN_DIO_DATA + 2);
2092 code = inb(dev->base_addr + TLAN_DIO_DATA + 3);
2093
2094 outw(TLAN_MULTICOL_FRMS, dev->base_addr + TLAN_DIO_ADR);
2095 multi_col = inb(dev->base_addr + TLAN_DIO_DATA);
2096 multi_col += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2097 single_col = inb(dev->base_addr + TLAN_DIO_DATA + 2);
2098 single_col += inb(dev->base_addr + TLAN_DIO_DATA + 3) << 8;
2099
2100 outw(TLAN_EXCESSCOL_FRMS, dev->base_addr + TLAN_DIO_ADR);
2101 excess_col = inb(dev->base_addr + TLAN_DIO_DATA);
2102 late_col = inb(dev->base_addr + TLAN_DIO_DATA + 1);
2103 loss = inb(dev->base_addr + TLAN_DIO_DATA + 2);
2104
2105 if (record) {
f8f31544
SH		 2106 dev->stats.rx_packets += rx_good;
2107 dev->stats.rx_errors += rx_over + crc + code;
2108 dev->stats.tx_packets += tx_good;
2109 dev->stats.tx_errors += tx_under + loss;
c659c38b
SA		 2110 dev->stats.collisions += multi_col
2111 + single_col + excess_col + late_col;
f8f31544
SH		 2112
2113 dev->stats.rx_over_errors += rx_over;
2114 dev->stats.rx_crc_errors += crc;
2115 dev->stats.rx_frame_errors += code;
2116
2117 dev->stats.tx_aborted_errors += tx_under;
2118 dev->stats.tx_carrier_errors += loss;
1da177e4 2119 }
6aa20a22 2120
c659c38b 2121}
1da177e4
LT		 2122
2123
2124
2125
c659c38b
SA		 2126/***************************************************************
2127 * TLan_Reset
2128 *
2129 * Returns:
2130 * 0
2131 * Parms:
2132 * dev Pointer to device structure of adapter
2133 * to be reset.
2134 *
2135 * This function resets the adapter and it's physical
2136 * device. See Chap. 3, pp. 9-10 of the "ThunderLAN
2137 * Programmer's Guide" for details. The routine tries to
2138 * implement what is detailed there, though adjustments
2139 * have been made.
2140 *
2141 **************************************************************/
1da177e4 2142
98e0f521 2143static void
c659c38b 2144tlan_reset_adapter(struct net_device *dev)
1da177e4 2145{
c659c38b 2146 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2147 int i;
2148 u32 addr;
2149 u32 data;
2150 u8 data8;
2151
c659c38b
SA		 2152 priv->tlan_full_duplex = false;
2153 priv->phy_online = 0;
1da177e4
LT		 2154 netif_carrier_off(dev);
2155
2156/* 1. Assert reset bit. */
2157
2158 data = inl(dev->base_addr + TLAN_HOST_CMD);
2159 data |= TLAN_HC_AD_RST;
2160 outl(data, dev->base_addr + TLAN_HOST_CMD);
6aa20a22 2161
1da177e4
LT		 2162 udelay(1000);
2163
c659c38b 2164/* 2. Turn off interrupts. (Probably isn't necessary) */
1da177e4
LT		 2165
2166 data = inl(dev->base_addr + TLAN_HOST_CMD);
2167 data |= TLAN_HC_INT_OFF;
2168 outl(data, dev->base_addr + TLAN_HOST_CMD);
2169
2170/* 3. Clear AREGs and HASHs. */
2171
c659c38b
SA		 2172 for (i = TLAN_AREG_0; i <= TLAN_HASH_2; i += 4)
2173 tlan_dio_write32(dev->base_addr, (u16) i, 0);
1da177e4
LT		 2174
2175/* 4. Setup NetConfig register. */
2176
2177 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
c659c38b 2178 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, (u16) data);
1da177e4
LT		 2179
2180/* 5. Load Ld_Tmr and Ld_Thr in HOST_CMD. */
2181
c659c38b
SA		 2182 outl(TLAN_HC_LD_TMR | 0x3f, dev->base_addr + TLAN_HOST_CMD);
2183 outl(TLAN_HC_LD_THR | 0x9, dev->base_addr + TLAN_HOST_CMD);
1da177e4
LT		 2184
2185/* 6. Unreset the MII by setting NMRST (in NetSio) to 1. */
2186
c659c38b 2187 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
1da177e4 2188 addr = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
c659c38b 2189 tlan_set_bit(TLAN_NET_SIO_NMRST, addr);
1da177e4
LT		 2190
2191/* 7. Setup the remaining registers. */
2192
c659c38b 2193 if (priv->tlan_rev >= 0x30) {
1da177e4 2194 data8 = TLAN_ID_TX_EOC | TLAN_ID_RX_EOC;
c659c38b 2195 tlan_dio_write8(dev->base_addr, TLAN_INT_DIS, data8);
1da177e4 2196 }
c659c38b 2197 tlan_phy_detect(dev);
1da177e4 2198 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN;
6aa20a22 2199
c659c38b 2200 if (priv->adapter->flags & TLAN_ADAPTER_BIT_RATE_PHY) {
1da177e4 2201 data |= TLAN_NET_CFG_BIT;
c659c38b
SA		 2202 if (priv->aui == 1) {
2203 tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x0a);
2204 } else if (priv->duplex == TLAN_DUPLEX_FULL) {
2205 tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x00);
2206 priv->tlan_full_duplex = true;
1da177e4 2207 } else {
c659c38b 2208 tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x08);
1da177e4
LT		 2209 }
2210 }
2211
c659c38b 2212 if (priv->phy_num == 0)
1da177e4 2213 data |= TLAN_NET_CFG_PHY_EN;
c659c38b 2214 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, (u16) data);
1da177e4 2215
c659c38b
SA		 2216 if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY)
2217 tlan_finish_reset(dev);
2218 else
2219 tlan_phy_power_down(dev);
1da177e4 2220
c659c38b 2221}
1da177e4
LT		 2222
2223
2224
2225
98e0f521 2226static void
c659c38b 2227tlan_finish_reset(struct net_device *dev)
1da177e4 2228{
c659c38b 2229 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2230 u8 data;
2231 u32 phy;
2232 u8 sio;
2233 u16 status;
2234 u16 partner;
2235 u16 tlphy_ctl;
c659c38b 2236 u16 tlphy_par;
1da177e4 2237 u16 tlphy_id1, tlphy_id2;
c659c38b 2238 int i;
1da177e4 2239
c659c38b 2240 phy = priv->phy[priv->phy_num];
1da177e4
LT		 2241
2242 data = TLAN_NET_CMD_NRESET | TLAN_NET_CMD_NWRAP;
c659c38b 2243 if (priv->tlan_full_duplex)
1da177e4 2244 data |= TLAN_NET_CMD_DUPLEX;
c659c38b 2245 tlan_dio_write8(dev->base_addr, TLAN_NET_CMD, data);
6aa20a22 2246 data = TLAN_NET_MASK_MASK4 | TLAN_NET_MASK_MASK5;
c659c38b 2247 if (priv->phy_num == 0)
6aa20a22 2248 data |= TLAN_NET_MASK_MASK7;
c659c38b
SA		 2249 tlan_dio_write8(dev->base_addr, TLAN_NET_MASK, data);
2250 tlan_dio_write16(dev->base_addr, TLAN_MAX_RX, ((1536)+7)&~7);
2251 tlan_mii_read_reg(dev, phy, MII_GEN_ID_HI, &tlphy_id1);
2252 tlan_mii_read_reg(dev, phy, MII_GEN_ID_LO, &tlphy_id2);
6aa20a22 2253
c659c38b
SA		 2254 if ((priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) ||
2255 (priv->aui)) {
1da177e4 2256 status = MII_GS_LINK;
50624aab 2257 netdev_info(dev, "Link forced\n");
1da177e4 2258 } else {
c659c38b
SA		 2259 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2260 udelay(1000);
2261 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2262 if ((status & MII_GS_LINK) &&
2263 /* We only support link info on Nat.Sem. PHY's */
2264 (tlphy_id1 == NAT_SEM_ID1) &&
2265 (tlphy_id2 == NAT_SEM_ID2)) {
2266 tlan_mii_read_reg(dev, phy, MII_AN_LPA, &partner);
2267 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_PAR, &tlphy_par);
2268
50624aab
JP		 2269 netdev_info(dev,
2270 "Link active with %s %uMbps %s-Duplex\n",
2271 !(tlphy_par & TLAN_PHY_AN_EN_STAT)
2272 ? "forced" : "Autonegotiation enabled,",
2273 tlphy_par & TLAN_PHY_SPEED_100
2274 ? 100 : 10,
2275 tlphy_par & TLAN_PHY_DUPLEX_FULL
2276 ? "Full" : "Half");
2277
2278 if (tlphy_par & TLAN_PHY_AN_EN_STAT) {
2279 netdev_info(dev, "Partner capability:");
2280 for (i = 5; i < 10; i++)
2281 if (partner & (1 << i))
2282 pr_cont(" %s", media[i-5]);
2283 pr_cont("\n");
1da177e4
LT		 2284 }
2285
c659c38b
SA		 2286 tlan_dio_write8(dev->base_addr, TLAN_LED_REG,
2287 TLAN_LED_LINK);
6aa20a22 2288#ifdef MONITOR
1da177e4 2289 /* We have link beat..for now anyway */
c659c38b
SA		 2290 priv->link = 1;
2291 /*Enabling link beat monitoring */
2292 tlan_set_timer(dev, (10*HZ), TLAN_TIMER_LINK_BEAT);
6aa20a22 2293#endif
1da177e4 2294 } else if (status & MII_GS_LINK) {
50624aab 2295 netdev_info(dev, "Link active\n");
c659c38b
SA		 2296 tlan_dio_write8(dev->base_addr, TLAN_LED_REG,
2297 TLAN_LED_LINK);
1da177e4
LT		 2298 }
2299 }
2300
c659c38b
SA		 2301 if (priv->phy_num == 0) {
2302 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl);
2303 tlphy_ctl |= TLAN_TC_INTEN;
2304 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, tlphy_ctl);
2305 sio = tlan_dio_read8(dev->base_addr, TLAN_NET_SIO);
2306 sio |= TLAN_NET_SIO_MINTEN;
2307 tlan_dio_write8(dev->base_addr, TLAN_NET_SIO, sio);
2308 }
2309
2310 if (status & MII_GS_LINK) {
2311 tlan_set_mac(dev, 0, dev->dev_addr);
2312 priv->phy_online = 1;
2313 outb((TLAN_HC_INT_ON >> 8), dev->base_addr + TLAN_HOST_CMD + 1);
2314 if (debug >= 1 && debug != TLAN_DEBUG_PROBE)
2315 outb((TLAN_HC_REQ_INT >> 8),
2316 dev->base_addr + TLAN_HOST_CMD + 1);
2317 outl(priv->rx_list_dma, dev->base_addr + TLAN_CH_PARM);
2318 outl(TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD);
1da177e4
LT		 2319 netif_carrier_on(dev);
2320 } else {
50624aab 2321 netdev_info(dev, "Link inactive, will retry in 10 secs...\n");
c659c38b 2322 tlan_set_timer(dev, (10*HZ), TLAN_TIMER_FINISH_RESET);
1da177e4
LT		 2323 return;
2324 }
c659c38b 2325 tlan_set_multicast_list(dev);
1da177e4 2326
c659c38b 2327}
1da177e4
LT		 2328
2329
2330
2331
c659c38b
SA		 2332/***************************************************************
2333 * tlan_set_mac
2334 *
2335 * Returns:
2336 * Nothing
2337 * Parms:
2338 * dev Pointer to device structure of adapter
2339 * on which to change the AREG.
2340 * areg The AREG to set the address in (0 - 3).
2341 * mac A pointer to an array of chars. Each
2342 * element stores one byte of the address.
2343 * IE, it isn't in ascii.
2344 *
2345 * This function transfers a MAC address to one of the
2346 * TLAN AREGs (address registers). The TLAN chip locks
2347 * the register on writing to offset 0 and unlocks the
2348 * register after writing to offset 5. If NULL is passed
2349 * in mac, then the AREG is filled with 0's.
2350 *
2351 **************************************************************/
1da177e4 2352
c659c38b 2353static void tlan_set_mac(struct net_device *dev, int areg, char *mac)
1da177e4
LT		 2354{
2355 int i;
6aa20a22 2356
1da177e4
LT		 2357 areg *= 6;
2358
c659c38b
SA		 2359 if (mac != NULL) {
2360 for (i = 0; i < 6; i++)
2361 tlan_dio_write8(dev->base_addr,
2362 TLAN_AREG_0 + areg + i, mac[i]);
1da177e4 2363 } else {
c659c38b
SA		 2364 for (i = 0; i < 6; i++)
2365 tlan_dio_write8(dev->base_addr,
2366 TLAN_AREG_0 + areg + i, 0);
1da177e4
LT		 2367 }
2368
c659c38b 2369}
1da177e4
LT		 2370
2371
2372
2373
2374/*****************************************************************************
2375******************************************************************************
2376
c659c38b 2377ThunderLAN driver PHY layer routines
1da177e4
LT		 2378
2379******************************************************************************
2380*****************************************************************************/
2381
2382
2383
c659c38b
SA		 2384/*********************************************************************
2385 * tlan_phy_print
2386 *
2387 * Returns:
2388 * Nothing
2389 * Parms:
2390 * dev A pointer to the device structure of the
2391 * TLAN device having the PHYs to be detailed.
2392 *
2393 * This function prints the registers a PHY (aka transceiver).
2394 *
2395 ********************************************************************/
1da177e4 2396
c659c38b 2397static void tlan_phy_print(struct net_device *dev)
1da177e4 2398{
c659c38b 2399 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2400 u16 i, data0, data1, data2, data3, phy;
2401
c659c38b
SA		 2402 phy = priv->phy[priv->phy_num];
2403
2404 if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) {
50624aab 2405 netdev_info(dev, "Unmanaged PHY\n");
c659c38b 2406 } else if (phy <= TLAN_PHY_MAX_ADDR) {
50624aab
JP		 2407 netdev_info(dev, "PHY 0x%02x\n", phy);
2408 pr_info(" Off. +0 +1 +2 +3\n");
c659c38b 2409 for (i = 0; i < 0x20; i += 4) {
c659c38b 2410 tlan_mii_read_reg(dev, phy, i, &data0);
c659c38b 2411 tlan_mii_read_reg(dev, phy, i + 1, &data1);
c659c38b 2412 tlan_mii_read_reg(dev, phy, i + 2, &data2);
c659c38b 2413 tlan_mii_read_reg(dev, phy, i + 3, &data3);
50624aab
JP		 2414 pr_info(" 0x%02x 0x%04hx 0x%04hx 0x%04hx 0x%04hx\n",
2415 i, data0, data1, data2, data3);
1da177e4
LT		 2416 }
2417 } else {
50624aab 2418 netdev_info(dev, "Invalid PHY\n");
1da177e4
LT		 2419 }
2420
c659c38b 2421}
1da177e4
LT		 2422
2423
2424
2425
c659c38b
SA		 2426/*********************************************************************
2427 * tlan_phy_detect
2428 *
2429 * Returns:
2430 * Nothing
2431 * Parms:
2432 * dev A pointer to the device structure of the adapter
2433 * for which the PHY needs determined.
2434 *
2435 * So far I've found that adapters which have external PHYs
2436 * may also use the internal PHY for part of the functionality.
2437 * (eg, AUI/Thinnet). This function finds out if this TLAN
2438 * chip has an internal PHY, and then finds the first external
2439 * PHY (starting from address 0) if it exists).
2440 *
2441 ********************************************************************/
1da177e4 2442
c659c38b 2443static void tlan_phy_detect(struct net_device *dev)
1da177e4 2444{
c659c38b 2445 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2446 u16 control;
2447 u16 hi;
2448 u16 lo;
2449 u32 phy;
2450
c659c38b
SA		 2451 if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) {
2452 priv->phy_num = 0xffff;
1da177e4
LT		 2453 return;
2454 }
2455
c659c38b 2456 tlan_mii_read_reg(dev, TLAN_PHY_MAX_ADDR, MII_GEN_ID_HI, &hi);
6aa20a22 2457
c659c38b 2458 if (hi != 0xffff)
1da177e4 2459 priv->phy[0] = TLAN_PHY_MAX_ADDR;
c659c38b 2460 else
1da177e4 2461 priv->phy[0] = TLAN_PHY_NONE;
1da177e4
LT		 2462
2463 priv->phy[1] = TLAN_PHY_NONE;
c659c38b
SA		 2464 for (phy = 0; phy <= TLAN_PHY_MAX_ADDR; phy++) {
2465 tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &control);
2466 tlan_mii_read_reg(dev, phy, MII_GEN_ID_HI, &hi);
2467 tlan_mii_read_reg(dev, phy, MII_GEN_ID_LO, &lo);
2468 if ((control != 0xffff) ||
2469 (hi != 0xffff) || (lo != 0xffff)) {
2470 TLAN_DBG(TLAN_DEBUG_GNRL,
2471 "PHY found at %02x %04x %04x %04x\n",
2472 phy, control, hi, lo);
2473 if ((priv->phy[1] == TLAN_PHY_NONE) &&
2474 (phy != TLAN_PHY_MAX_ADDR)) {
1da177e4
LT		 2475 priv->phy[1] = phy;
2476 }
2477 }
2478 }
2479
c659c38b
SA		 2480 if (priv->phy[1] != TLAN_PHY_NONE)
2481 priv->phy_num = 1;
2482 else if (priv->phy[0] != TLAN_PHY_NONE)
2483 priv->phy_num = 0;
2484 else
50624aab 2485 netdev_info(dev, "Cannot initialize device, no PHY was found!\n");
1da177e4 2486
c659c38b 2487}
1da177e4
LT		 2488
2489
2490
2491
c659c38b 2492static void tlan_phy_power_down(struct net_device *dev)
1da177e4 2493{
c659c38b 2494 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2495 u16 value;
2496
c659c38b 2497 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Powering down PHY(s).\n", dev->name);
1da177e4 2498 value = MII_GC_PDOWN | MII_GC_LOOPBK | MII_GC_ISOLATE;
c659c38b
SA		 2499 tlan_mii_sync(dev->base_addr);
2500 tlan_mii_write_reg(dev, priv->phy[priv->phy_num], MII_GEN_CTL, value);
2501 if ((priv->phy_num == 0) &&
2502 (priv->phy[1] != TLAN_PHY_NONE) &&
2503 (!(priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10))) {
2504 tlan_mii_sync(dev->base_addr);
2505 tlan_mii_write_reg(dev, priv->phy[1], MII_GEN_CTL, value);
1da177e4
LT		 2506 }
2507
2508 /* Wait for 50 ms and powerup
2509 * This is abitrary. It is intended to make sure the
2510 * transceiver settles.
2511 */
c659c38b 2512 tlan_set_timer(dev, (HZ/20), TLAN_TIMER_PHY_PUP);
1da177e4 2513
c659c38b 2514}
1da177e4
LT		 2515
2516
2517
2518
c659c38b 2519static void tlan_phy_power_up(struct net_device *dev)
1da177e4 2520{
c659c38b 2521 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2522 u16 value;
2523
c659c38b
SA		 2524 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Powering up PHY.\n", dev->name);
2525 tlan_mii_sync(dev->base_addr);
1da177e4 2526 value = MII_GC_LOOPBK;
c659c38b
SA		 2527 tlan_mii_write_reg(dev, priv->phy[priv->phy_num], MII_GEN_CTL, value);
2528 tlan_mii_sync(dev->base_addr);
1da177e4
LT		 2529 /* Wait for 500 ms and reset the
2530 * transceiver. The TLAN docs say both 50 ms and
2531 * 500 ms, so do the longer, just in case.
2532 */
c659c38b 2533 tlan_set_timer(dev, (HZ/20), TLAN_TIMER_PHY_RESET);
1da177e4 2534
c659c38b 2535}
1da177e4
LT		 2536
2537
2538
2539
c659c38b 2540static void tlan_phy_reset(struct net_device *dev)
1da177e4 2541{
c659c38b 2542 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2543 u16 phy;
2544 u16 value;
2545
c659c38b 2546 phy = priv->phy[priv->phy_num];
1da177e4 2547
c659c38b
SA		 2548 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Reseting PHY.\n", dev->name);
2549 tlan_mii_sync(dev->base_addr);
1da177e4 2550 value = MII_GC_LOOPBK | MII_GC_RESET;
c659c38b
SA		 2551 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, value);
2552 tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &value);
2553 while (value & MII_GC_RESET)
2554 tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &value);
1da177e4
LT		 2555
2556 /* Wait for 500 ms and initialize.
2557 * I don't remember why I wait this long.
2558 * I've changed this to 50ms, as it seems long enough.
2559 */
c659c38b 2560 tlan_set_timer(dev, (HZ/20), TLAN_TIMER_PHY_START_LINK);
1da177e4 2561
c659c38b 2562}
1da177e4
LT		 2563
2564
2565
2566
c659c38b 2567static void tlan_phy_start_link(struct net_device *dev)
1da177e4 2568{
c659c38b 2569 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2570 u16 ability;
2571 u16 control;
2572 u16 data;
2573 u16 phy;
2574 u16 status;
2575 u16 tctl;
2576
c659c38b
SA		 2577 phy = priv->phy[priv->phy_num];
2578 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Trying to activate link.\n", dev->name);
2579 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2580 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &ability);
1da177e4 2581
c659c38b
SA		 2582 if ((status & MII_GS_AUTONEG) &&
2583 (!priv->aui)) {
1da177e4 2584 ability = status >> 11;
c659c38b
SA		 2585 if (priv->speed == TLAN_SPEED_10 &&
2586 priv->duplex == TLAN_DUPLEX_HALF) {
2587 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x0000);
2588 } else if (priv->speed == TLAN_SPEED_10 &&
2589 priv->duplex == TLAN_DUPLEX_FULL) {
2590 priv->tlan_full_duplex = true;
2591 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x0100);
2592 } else if (priv->speed == TLAN_SPEED_100 &&
2593 priv->duplex == TLAN_DUPLEX_HALF) {
2594 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x2000);
2595 } else if (priv->speed == TLAN_SPEED_100 &&
2596 priv->duplex == TLAN_DUPLEX_FULL) {
2597 priv->tlan_full_duplex = true;
2598 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x2100);
1da177e4 2599 } else {
6aa20a22 2600
1da177e4 2601 /* Set Auto-Neg advertisement */
c659c38b
SA		 2602 tlan_mii_write_reg(dev, phy, MII_AN_ADV,
2603 (ability << 5) | 1);
1da177e4 2604 /* Enablee Auto-Neg */
c659c38b 2605 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x1000);
1da177e4 2606 /* Restart Auto-Neg */
c659c38b 2607 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x1200);
1da177e4 2608 /* Wait for 4 sec for autonegotiation
c659c38b
SA		 2609 * to complete. The max spec time is less than this
2610 * but the card need additional time to start AN.
2611 * .5 sec should be plenty extra.
2612 */
50624aab 2613 netdev_info(dev, "Starting autonegotiation\n");
c659c38b 2614 tlan_set_timer(dev, (2*HZ), TLAN_TIMER_PHY_FINISH_AN);
1da177e4
LT		 2615 return;
2616 }
6aa20a22
JG		 2617
2618 }
2619
c659c38b
SA		 2620 if ((priv->aui) && (priv->phy_num != 0)) {
2621 priv->phy_num = 0;
2622 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN
2623 | TLAN_NET_CFG_PHY_EN;
2624 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, data);
2625 tlan_set_timer(dev, (40*HZ/1000), TLAN_TIMER_PHY_PDOWN);
1da177e4 2626 return;
c659c38b 2627 } else if (priv->phy_num == 0) {
1da177e4 2628 control = 0;
c659c38b
SA		 2629 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tctl);
2630 if (priv->aui) {
2631 tctl |= TLAN_TC_AUISEL;
6aa20a22 2632 } else {
c659c38b
SA		 2633 tctl &= ~TLAN_TC_AUISEL;
2634 if (priv->duplex == TLAN_DUPLEX_FULL) {
1da177e4 2635 control |= MII_GC_DUPLEX;
c659c38b 2636 priv->tlan_full_duplex = true;
1da177e4 2637 }
c659c38b 2638 if (priv->speed == TLAN_SPEED_100)
1da177e4 2639 control |= MII_GC_SPEEDSEL;
1da177e4 2640 }
c659c38b
SA		 2641 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, control);
2642 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, tctl);
1da177e4
LT		 2643 }
2644
2645 /* Wait for 2 sec to give the transceiver time
2646 * to establish link.
2647 */
c659c38b 2648 tlan_set_timer(dev, (4*HZ), TLAN_TIMER_FINISH_RESET);
1da177e4 2649
c659c38b 2650}
1da177e4
LT		 2651
2652
2653
2654
c659c38b 2655static void tlan_phy_finish_auto_neg(struct net_device *dev)
1da177e4 2656{
c659c38b 2657 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2658 u16 an_adv;
2659 u16 an_lpa;
2660 u16 data;
2661 u16 mode;
2662 u16 phy;
2663 u16 status;
6aa20a22 2664
c659c38b 2665 phy = priv->phy[priv->phy_num];
1da177e4 2666
c659c38b
SA		 2667 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2668 udelay(1000);
2669 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
1da177e4 2670
c659c38b 2671 if (!(status & MII_GS_AUTOCMPLT)) {
1da177e4
LT		 2672 /* Wait for 8 sec to give the process
2673 * more time. Perhaps we should fail after a while.
2674 */
c659c38b 2675 if (!priv->neg_be_verbose++) {
50624aab
JP		 2676 pr_info("Giving autonegotiation more time.\n");
2677 pr_info("Please check that your adapter has\n");
2678 pr_info("been properly connected to a HUB or Switch.\n");
2679 pr_info("Trying to establish link in the background...\n");
c659c38b
SA		 2680 }
2681 tlan_set_timer(dev, (8*HZ), TLAN_TIMER_PHY_FINISH_AN);
1da177e4
LT		 2682 return;
2683 }
2684
50624aab 2685 netdev_info(dev, "Autonegotiation complete\n");
c659c38b
SA		 2686 tlan_mii_read_reg(dev, phy, MII_AN_ADV, &an_adv);
2687 tlan_mii_read_reg(dev, phy, MII_AN_LPA, &an_lpa);
1da177e4 2688 mode = an_adv & an_lpa & 0x03E0;
c659c38b
SA		 2689 if (mode & 0x0100)
2690 priv->tlan_full_duplex = true;
2691 else if (!(mode & 0x0080) && (mode & 0x0040))
2692 priv->tlan_full_duplex = true;
2693
2694 if ((!(mode & 0x0180)) &&
2695 (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10) &&
2696 (priv->phy_num != 0)) {
2697 priv->phy_num = 0;
2698 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN
2699 | TLAN_NET_CFG_PHY_EN;
2700 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, data);
2701 tlan_set_timer(dev, (400*HZ/1000), TLAN_TIMER_PHY_PDOWN);
1da177e4
LT		 2702 return;
2703 }
2704
c659c38b
SA		 2705 if (priv->phy_num == 0) {
2706 if ((priv->duplex == TLAN_DUPLEX_FULL) ||
2707 (an_adv & an_lpa & 0x0040)) {
2708 tlan_mii_write_reg(dev, phy, MII_GEN_CTL,
2709 MII_GC_AUTOENB | MII_GC_DUPLEX);
50624aab 2710 netdev_info(dev, "Starting internal PHY with FULL-DUPLEX\n");
1da177e4 2711 } else {
c659c38b
SA		 2712 tlan_mii_write_reg(dev, phy, MII_GEN_CTL,
2713 MII_GC_AUTOENB);
50624aab 2714 netdev_info(dev, "Starting internal PHY with HALF-DUPLEX\n");
1da177e4
LT		 2715 }
2716 }
2717
2718 /* Wait for 100 ms. No reason in partiticular.
2719 */
c659c38b 2720 tlan_set_timer(dev, (HZ/10), TLAN_TIMER_FINISH_RESET);
6aa20a22 2721
c659c38b 2722}
1da177e4
LT		 2723
2724#ifdef MONITOR
2725
c659c38b
SA		 2726/*********************************************************************
2727 *
2728 * tlan_phy_monitor
2729 *
2730 * Returns:
2731 * None
2732 *
2733 * Params:
2734 * dev The device structure of this device.
2735 *
2736 *
2737 * This function monitors PHY condition by reading the status
2738 * register via the MII bus. This can be used to give info
2739 * about link changes (up/down), and possible switch to alternate
2740 * media.
2741 *
2742 *******************************************************************/
2743
2744void tlan_phy_monitor(struct net_device *dev)
1da177e4 2745{
c659c38b 2746 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2747 u16 phy;
2748 u16 phy_status;
2749
c659c38b 2750 phy = priv->phy[priv->phy_num];
1da177e4 2751
c659c38b
SA		 2752 /* Get PHY status register */
2753 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &phy_status);
1da177e4 2754
c659c38b
SA		 2755 /* Check if link has been lost */
2756 if (!(phy_status & MII_GS_LINK)) {
2757 if (priv->link) {
2758 priv->link = 0;
2759 printk(KERN_DEBUG "TLAN: %s has lost link\n",
2760 dev->name);
2761 netif_carrier_off(dev);
2762 tlan_set_timer(dev, (2*HZ), TLAN_TIMER_LINK_BEAT);
2763 return;
1da177e4
LT		 2764 }
2765 }
2766
c659c38b
SA		 2767 /* Link restablished? */
2768 if ((phy_status & MII_GS_LINK) && !priv->link) {
2769 priv->link = 1;
2770 printk(KERN_DEBUG "TLAN: %s has reestablished link\n",
2771 dev->name);
7d17c1d6 2772 netif_carrier_on(dev);
c659c38b 2773 }
1da177e4
LT		 2774
2775 /* Setup a new monitor */
c659c38b 2776 tlan_set_timer(dev, (2*HZ), TLAN_TIMER_LINK_BEAT);
6aa20a22 2777}
1da177e4
LT		 2778
2779#endif /* MONITOR */
2780
2781
2782/*****************************************************************************
2783******************************************************************************
2784
c659c38b 2785ThunderLAN driver MII routines
1da177e4 2786
c659c38b
SA		 2787these routines are based on the information in chap. 2 of the
2788"ThunderLAN Programmer's Guide", pp. 15-24.
1da177e4
LT		 2789
2790******************************************************************************
2791*****************************************************************************/
2792
2793
c659c38b
SA		 2794/***************************************************************
2795 * tlan_mii_read_reg
2796 *
2797 * Returns:
2798 * false if ack received ok
2799 * true if no ack received or other error
2800 *
2801 * Parms:
2802 * dev The device structure containing
2803 * The io address and interrupt count
2804 * for this device.
2805 * phy The address of the PHY to be queried.
2806 * reg The register whose contents are to be
2807 * retrieved.
2808 * val A pointer to a variable to store the
2809 * retrieved value.
2810 *
2811 * This function uses the TLAN's MII bus to retrieve the contents
2812 * of a given register on a PHY. It sends the appropriate info
2813 * and then reads the 16-bit register value from the MII bus via
2814 * the TLAN SIO register.
2815 *
2816 **************************************************************/
2817
2818static bool
2819tlan_mii_read_reg(struct net_device *dev, u16 phy, u16 reg, u16 *val)
1da177e4
LT		 2820{
2821 u8 nack;
2822 u16 sio, tmp;
c659c38b 2823 u32 i;
37fce430 2824 bool err;
1da177e4 2825 int minten;
c659c38b 2826 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2827 unsigned long flags = 0;
2828
37fce430 2829 err = false;
1da177e4
LT		 2830 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
2831 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
6aa20a22 2832
1da177e4
LT		 2833 if (!in_irq())
2834 spin_lock_irqsave(&priv->lock, flags);
2835
c659c38b 2836 tlan_mii_sync(dev->base_addr);
1da177e4 2837
c659c38b
SA		 2838 minten = tlan_get_bit(TLAN_NET_SIO_MINTEN, sio);
2839 if (minten)
2840 tlan_clear_bit(TLAN_NET_SIO_MINTEN, sio);
1da177e4 2841
c659c38b
SA		 2842 tlan_mii_send_data(dev->base_addr, 0x1, 2); /* start (01b) */
2843 tlan_mii_send_data(dev->base_addr, 0x2, 2); /* read (10b) */
2844 tlan_mii_send_data(dev->base_addr, phy, 5); /* device # */
2845 tlan_mii_send_data(dev->base_addr, reg, 5); /* register # */
1da177e4
LT		 2846
2847
c659c38b 2848 tlan_clear_bit(TLAN_NET_SIO_MTXEN, sio); /* change direction */
1da177e4 2849
c659c38b
SA		 2850 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* clock idle bit */
2851 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
2852 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* wait 300ns */
1da177e4 2853
c659c38b
SA		 2854 nack = tlan_get_bit(TLAN_NET_SIO_MDATA, sio); /* check for ACK */
2855 tlan_set_bit(TLAN_NET_SIO_MCLK, sio); /* finish ACK */
2856 if (nack) { /* no ACK, so fake it */
1da177e4 2857 for (i = 0; i < 16; i++) {
c659c38b
SA		 2858 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2859 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2860 }
2861 tmp = 0xffff;
37fce430 2862 err = true;
1da177e4
LT		 2863 } else { /* ACK, so read data */
2864 for (tmp = 0, i = 0x8000; i; i >>= 1) {
c659c38b
SA		 2865 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2866 if (tlan_get_bit(TLAN_NET_SIO_MDATA, sio))
1da177e4 2867 tmp |= i;
c659c38b 2868 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2869 }
2870 }
2871
2872
c659c38b
SA		 2873 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* idle cycle */
2874 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4 2875
c659c38b
SA		 2876 if (minten)
2877 tlan_set_bit(TLAN_NET_SIO_MINTEN, sio);
1da177e4
LT		 2878
2879 *val = tmp;
6aa20a22 2880
1da177e4
LT		 2881 if (!in_irq())
2882 spin_unlock_irqrestore(&priv->lock, flags);
2883
2884 return err;
2885
c659c38b 2886}
1da177e4
LT		 2887
2888
2889
2890
c659c38b
SA		 2891/***************************************************************
2892 * tlan_mii_send_data
2893 *
2894 * Returns:
2895 * Nothing
2896 * Parms:
2897 * base_port The base IO port of the adapter in
2898 * question.
2899 * dev The address of the PHY to be queried.
2900 * data The value to be placed on the MII bus.
2901 * num_bits The number of bits in data that are to
2902 * be placed on the MII bus.
2903 *
2904 * This function sends on sequence of bits on the MII
2905 * configuration bus.
2906 *
2907 **************************************************************/
1da177e4 2908
c659c38b 2909static void tlan_mii_send_data(u16 base_port, u32 data, unsigned num_bits)
1da177e4
LT		 2910{
2911 u16 sio;
2912 u32 i;
2913
c659c38b 2914 if (num_bits == 0)
1da177e4
LT		 2915 return;
2916
c659c38b 2917 outw(TLAN_NET_SIO, base_port + TLAN_DIO_ADR);
1da177e4 2918 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
c659c38b 2919 tlan_set_bit(TLAN_NET_SIO_MTXEN, sio);
1da177e4 2920
c659c38b
SA		 2921 for (i = (0x1 << (num_bits - 1)); i; i >>= 1) {
2922 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2923 (void) tlan_get_bit(TLAN_NET_SIO_MCLK, sio);
2924 if (data & i)
2925 tlan_set_bit(TLAN_NET_SIO_MDATA, sio);
1da177e4 2926 else
c659c38b
SA		 2927 tlan_clear_bit(TLAN_NET_SIO_MDATA, sio);
2928 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
2929 (void) tlan_get_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2930 }
2931
c659c38b 2932}
1da177e4
LT		 2933
2934
2935
2936
c659c38b
SA		 2937/***************************************************************
2938 * TLan_MiiSync
2939 *
2940 * Returns:
2941 * Nothing
2942 * Parms:
2943 * base_port The base IO port of the adapter in
2944 * question.
2945 *
2946 * This functions syncs all PHYs in terms of the MII configuration
2947 * bus.
2948 *
2949 **************************************************************/
1da177e4 2950
c659c38b 2951static void tlan_mii_sync(u16 base_port)
1da177e4
LT		 2952{
2953 int i;
2954 u16 sio;
2955
c659c38b 2956 outw(TLAN_NET_SIO, base_port + TLAN_DIO_ADR);
1da177e4
LT		 2957 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
2958
c659c38b
SA		 2959 tlan_clear_bit(TLAN_NET_SIO_MTXEN, sio);
2960 for (i = 0; i < 32; i++) {
2961 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2962 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2963 }
2964
c659c38b 2965}
1da177e4
LT		 2966
2967
2968
2969
c659c38b
SA		 2970/***************************************************************
2971 * tlan_mii_write_reg
2972 *
2973 * Returns:
2974 * Nothing
2975 * Parms:
2976 * dev The device structure for the device
2977 * to write to.
2978 * phy The address of the PHY to be written to.
2979 * reg The register whose contents are to be
2980 * written.
2981 * val The value to be written to the register.
2982 *
2983 * This function uses the TLAN's MII bus to write the contents of a
2984 * given register on a PHY. It sends the appropriate info and then
2985 * writes the 16-bit register value from the MII configuration bus
2986 * via the TLAN SIO register.
2987 *
2988 **************************************************************/
1da177e4 2989
c659c38b
SA		 2990static void
2991tlan_mii_write_reg(struct net_device *dev, u16 phy, u16 reg, u16 val)
1da177e4
LT		 2992{
2993 u16 sio;
2994 int minten;
2995 unsigned long flags = 0;
c659c38b 2996 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2997
2998 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
2999 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
6aa20a22 3000
1da177e4
LT		 3001 if (!in_irq())
3002 spin_lock_irqsave(&priv->lock, flags);
3003
c659c38b 3004 tlan_mii_sync(dev->base_addr);
1da177e4 3005
c659c38b
SA		 3006 minten = tlan_get_bit(TLAN_NET_SIO_MINTEN, sio);
3007 if (minten)
3008 tlan_clear_bit(TLAN_NET_SIO_MINTEN, sio);
1da177e4 3009
c659c38b
SA		 3010 tlan_mii_send_data(dev->base_addr, 0x1, 2); /* start (01b) */
3011 tlan_mii_send_data(dev->base_addr, 0x1, 2); /* write (01b) */
3012 tlan_mii_send_data(dev->base_addr, phy, 5); /* device # */
3013 tlan_mii_send_data(dev->base_addr, reg, 5); /* register # */
1da177e4 3014
c659c38b
SA		 3015 tlan_mii_send_data(dev->base_addr, 0x2, 2); /* send ACK */
3016 tlan_mii_send_data(dev->base_addr, val, 16); /* send data */
1da177e4 3017
c659c38b
SA		 3018 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* idle cycle */
3019 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4 3020
c659c38b
SA		 3021 if (minten)
3022 tlan_set_bit(TLAN_NET_SIO_MINTEN, sio);
6aa20a22 3023
1da177e4
LT		 3024 if (!in_irq())
3025 spin_unlock_irqrestore(&priv->lock, flags);
3026
c659c38b 3027}
1da177e4
LT		 3028
3029
3030
3031
3032/*****************************************************************************
3033******************************************************************************
3034
c659c38b 3035ThunderLAN driver eeprom routines
1da177e4 3036
c659c38b
SA		 3037the Compaq netelligent 10 and 10/100 cards use a microchip 24C02A
3038EEPROM. these functions are based on information in microchip's
3039data sheet. I don't know how well this functions will work with
3040other Eeproms.
1da177e4
LT		 3041
3042******************************************************************************
3043*****************************************************************************/
3044
3045
c659c38b
SA		 3046/***************************************************************
3047 * tlan_ee_send_start
3048 *
3049 * Returns:
3050 * Nothing
3051 * Parms:
3052 * io_base The IO port base address for the
3053 * TLAN device with the EEPROM to
3054 * use.
3055 *
3056 * This function sends a start cycle to an EEPROM attached
3057 * to a TLAN chip.
3058 *
3059 **************************************************************/
3060
3061static void tlan_ee_send_start(u16 io_base)
1da177e4
LT		 3062{
3063 u16 sio;
3064
c659c38b 3065 outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
1da177e4
LT		 3066 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3067
c659c38b
SA		 3068 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3069 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
3070 tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
3071 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3072 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
3073
3074}
3075
3076
3077
3078
3079/***************************************************************
3080 * tlan_ee_send_byte
3081 *
3082 * Returns:
3083 * If the correct ack was received, 0, otherwise 1
3084 * Parms: io_base The IO port base address for the
3085 * TLAN device with the EEPROM to
3086 * use.
3087 * data The 8 bits of information to
3088 * send to the EEPROM.
3089 * stop If TLAN_EEPROM_STOP is passed, a
3090 * stop cycle is sent after the
3091 * byte is sent after the ack is
3092 * read.
3093 *
3094 * This function sends a byte on the serial EEPROM line,
3095 * driving the clock to send each bit. The function then
3096 * reverses transmission direction and reads an acknowledge
3097 * bit.
3098 *
3099 **************************************************************/
3100
3101static int tlan_ee_send_byte(u16 io_base, u8 data, int stop)
1da177e4
LT		 3102{
3103 int err;
3104 u8 place;
3105 u16 sio;
3106
c659c38b 3107 outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
1da177e4
LT		 3108 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3109
3110 /* Assume clock is low, tx is enabled; */
c659c38b
SA		 3111 for (place = 0x80; place != 0; place >>= 1) {
3112 if (place & data)
3113 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
1da177e4 3114 else
c659c38b
SA		 3115 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3116 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3117 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
1da177e4 3118 }
c659c38b
SA		 3119 tlan_clear_bit(TLAN_NET_SIO_ETXEN, sio);
3120 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3121 err = tlan_get_bit(TLAN_NET_SIO_EDATA, sio);
3122 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
3123 tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
1da177e4 3124
c659c38b 3125 if ((!err) && stop) {
dfc2c0a6 3126 /* STOP, raise data while clock is high */
c659c38b
SA		 3127 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3128 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3129 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
1da177e4
LT		 3130 }
3131
807540ba 3132 return err;
1da177e4 3133
c659c38b
SA		 3134}
3135
3136
3137
3138
3139/***************************************************************
3140 * tlan_ee_receive_byte
3141 *
3142 * Returns:
3143 * Nothing
3144 * Parms:
3145 * io_base The IO port base address for the
3146 * TLAN device with the EEPROM to
3147 * use.
3148 * data An address to a char to hold the
3149 * data sent from the EEPROM.
3150 * stop If TLAN_EEPROM_STOP is passed, a
3151 * stop cycle is sent after the
3152 * byte is received, and no ack is
3153 * sent.
3154 *
3155 * This function receives 8 bits of data from the EEPROM
3156 * over the serial link. It then sends and ack bit, or no
3157 * ack and a stop bit. This function is used to retrieve
3158 * data after the address of a byte in the EEPROM has been
3159 * sent.
3160 *
3161 **************************************************************/
3162
3163static void tlan_ee_receive_byte(u16 io_base, u8 *data, int stop)
1da177e4
LT		 3164{
3165 u8 place;
3166 u16 sio;
3167
c659c38b 3168 outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
1da177e4
LT		 3169 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3170 *data = 0;
3171
3172 /* Assume clock is low, tx is enabled; */
c659c38b
SA		 3173 tlan_clear_bit(TLAN_NET_SIO_ETXEN, sio);
3174 for (place = 0x80; place; place >>= 1) {
3175 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3176 if (tlan_get_bit(TLAN_NET_SIO_EDATA, sio))
1da177e4 3177 *data |= place;
c659c38b 3178 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
1da177e4
LT		 3179 }
3180
c659c38b
SA		 3181 tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
3182 if (!stop) {
3183 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio); /* ack = 0 */
3184 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3185 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
1da177e4 3186 } else {
c659c38b
SA		 3187 tlan_set_bit(TLAN_NET_SIO_EDATA, sio); /* no ack = 1 (?) */
3188 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3189 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
dfc2c0a6 3190 /* STOP, raise data while clock is high */
c659c38b
SA		 3191 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3192 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3193 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
3194 }
3195
3196}
3197
3198
3199
3200
3201/***************************************************************
3202 * tlan_ee_read_byte
3203 *
3204 * Returns:
3205 * No error = 0, else, the stage at which the error
3206 * occurred.
3207 * Parms:
3208 * io_base The IO port base address for the
3209 * TLAN device with the EEPROM to
3210 * use.
3211 * ee_addr The address of the byte in the
3212 * EEPROM whose contents are to be
3213 * retrieved.
3214 * data An address to a char to hold the
3215 * data obtained from the EEPROM.
3216 *
3217 * This function reads a byte of information from an byte
3218 * cell in the EEPROM.
3219 *
3220 **************************************************************/
3221
3222static int tlan_ee_read_byte(struct net_device *dev, u8 ee_addr, u8 *data)
1da177e4
LT		 3223{
3224 int err;
c659c38b 3225 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 3226 unsigned long flags = 0;
c659c38b 3227 int ret = 0;
1da177e4
LT		 3228
3229 spin_lock_irqsave(&priv->lock, flags);
3230
c659c38b
SA		 3231 tlan_ee_send_start(dev->base_addr);
3232 err = tlan_ee_send_byte(dev->base_addr, 0xa0, TLAN_EEPROM_ACK);
3233 if (err) {
3234 ret = 1;
1da177e4
LT		 3235 goto fail;
3236 }
c659c38b
SA		 3237 err = tlan_ee_send_byte(dev->base_addr, ee_addr, TLAN_EEPROM_ACK);
3238 if (err) {
3239 ret = 2;
1da177e4
LT		 3240 goto fail;
3241 }
c659c38b
SA		 3242 tlan_ee_send_start(dev->base_addr);
3243 err = tlan_ee_send_byte(dev->base_addr, 0xa1, TLAN_EEPROM_ACK);
3244 if (err) {
3245 ret = 3;
1da177e4
LT		 3246 goto fail;
3247 }
c659c38b 3248 tlan_ee_receive_byte(dev->base_addr, data, TLAN_EEPROM_STOP);
1da177e4
LT		 3249fail:
3250 spin_unlock_irqrestore(&priv->lock, flags);
3251
3252 return ret;
3253
c659c38b 3254}
1da177e4
LT		 3255
3256
3257
Linux kernel - Deliverables
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