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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
b255e500 72/* Turn on debugging.
132db935 73 * See Documentation/networking/device_drivers/ethernet/ti/tlan.rst for details
b255e500 74 */
1da177e4 75static int debug;
15efa9bb
SH		 76module_param(debug, int, 0);
77MODULE_PARM_DESC(debug, "ThunderLAN debug mask");
1da177e4 78
c659c38b 79static const char tlan_signature[] = "TLAN";
fa6d5d4f 80static const char tlan_banner[] = "ThunderLAN driver v1.17\n";
1da177e4
LT		 81static int tlan_have_pci;
82static int tlan_have_eisa;
83
c659c38b
SA		 84static const char * const media[] = {
85 "10BaseT-HD", "10BaseT-FD", "100baseTx-HD",
86 "100BaseTx-FD", "100BaseT4", NULL
1da177e4
LT		 87};
88
89static struct board {
c659c38b
SA		 90 const char *device_label;
91 u32 flags;
92 u16 addr_ofs;
1da177e4
LT		 93} board_info[] = {
94 { "Compaq Netelligent 10 T PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
c659c38b
SA		 95 { "Compaq Netelligent 10/100 TX PCI UTP",
96 TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
1da177e4 97 { "Compaq Integrated NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
dfc2c0a6
SH		 98 { "Compaq NetFlex-3/P",
99 TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
1da177e4 100 { "Compaq NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
dfc2c0a6
SH		 101 { "Compaq Netelligent Integrated 10/100 TX UTP",
102 TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
c659c38b
SA		 103 { "Compaq Netelligent Dual 10/100 TX PCI UTP",
104 TLAN_ADAPTER_NONE, 0x83 },
105 { "Compaq Netelligent 10/100 TX Embedded UTP",
106 TLAN_ADAPTER_NONE, 0x83 },
1da177e4 107 { "Olicom OC-2183/2185", TLAN_ADAPTER_USE_INTERN_10, 0x83 },
eb522bb4
OZ		 108 { "Olicom OC-2325", TLAN_ADAPTER_ACTIVITY_LED |
109 TLAN_ADAPTER_UNMANAGED_PHY, 0xf8 },
110 { "Olicom OC-2326", TLAN_ADAPTER_ACTIVITY_LED |
111 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
9baa3c34 121static const struct pci_device_id 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);
0290bd29 164static void tlan_tx_timeout(struct net_device *dev, unsigned int txqueue);
c659c38b
SA		 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
0010e3f8
KC		 177static void tlan_timer(struct timer_list *t);
178static void tlan_phy_monitor(struct timer_list *t);
c659c38b
SA		 179
180static void tlan_reset_lists(struct net_device *);
181static void tlan_free_lists(struct net_device *);
182static void tlan_print_dio(u16);
183static void tlan_print_list(struct tlan_list *, char *, int);
184static void tlan_read_and_clear_stats(struct net_device *, int);
185static void tlan_reset_adapter(struct net_device *);
186static void tlan_finish_reset(struct net_device *);
187static void tlan_set_mac(struct net_device *, int areg, char *mac);
188
189static void tlan_phy_print(struct net_device *);
190static void tlan_phy_detect(struct net_device *);
191static void tlan_phy_power_down(struct net_device *);
192static void tlan_phy_power_up(struct net_device *);
193static void tlan_phy_reset(struct net_device *);
194static void tlan_phy_start_link(struct net_device *);
195static void tlan_phy_finish_auto_neg(struct net_device *);
1da177e4
LT		 196
197/*
c659c38b
SA		 198 static int tlan_phy_nop(struct net_device *);
199 static int tlan_phy_internal_check(struct net_device *);
200 static int tlan_phy_internal_service(struct net_device *);
201 static int tlan_phy_dp83840a_check(struct net_device *);
1da177e4
LT		 202*/
203
c659c38b
SA		 204static bool tlan_mii_read_reg(struct net_device *, u16, u16, u16 *);
205static void tlan_mii_send_data(u16, u32, unsigned);
206static void tlan_mii_sync(u16);
207static void tlan_mii_write_reg(struct net_device *, u16, u16, u16);
1da177e4 208
c659c38b
SA		 209static void tlan_ee_send_start(u16);
210static int tlan_ee_send_byte(u16, u8, int);
211static void tlan_ee_receive_byte(u16, u8 *, int);
212static int tlan_ee_read_byte(struct net_device *, u8, u8 *);
1da177e4
LT		 213
214
93e16847 215static inline void
c659c38b 216tlan_store_skb(struct tlan_list *tag, struct sk_buff *skb)
1da177e4
LT		 217{
218 unsigned long addr = (unsigned long)skb;
93e16847
SH		 219 tag->buffer[9].address = addr;
220 tag->buffer[8].address = upper_32_bits(addr);
1da177e4
LT		 221}
222
93e16847 223static inline struct sk_buff *
c659c38b 224tlan_get_skb(const struct tlan_list *tag)
1da177e4 225{
93e16847
SH		 226 unsigned long addr;
227
0d63bea2 228 addr = tag->buffer[9].address;
da3a9e9e 229 addr |= ((unsigned long) tag->buffer[8].address << 16) << 16;
1da177e4
LT		 230 return (struct sk_buff *) addr;
231}
232
c659c38b
SA		 233static u32
234(*tlan_int_vector[TLAN_INT_NUMBER_OF_INTS])(struct net_device *, u16) = {
a3ccc789 235 NULL,
c659c38b
SA		 236 tlan_handle_tx_eof,
237 tlan_handle_stat_overflow,
238 tlan_handle_rx_eof,
239 tlan_handle_dummy,
240 tlan_handle_tx_eoc,
241 tlan_handle_status_check,
242 tlan_handle_rx_eoc
1da177e4
LT		 243};
244
245static inline void
c659c38b 246tlan_set_timer(struct net_device *dev, u32 ticks, u32 type)
1da177e4 247{
c659c38b 248 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 249 unsigned long flags = 0;
6aa20a22 250
1da177e4
LT		 251 if (!in_irq())
252 spin_lock_irqsave(&priv->lock, flags);
c659c38b
SA		 253 if (priv->timer.function != NULL &&
254 priv->timer_type != TLAN_TIMER_ACTIVITY) {
1da177e4
LT		 255 if (!in_irq())
256 spin_unlock_irqrestore(&priv->lock, flags);
257 return;
258 }
841b86f3 259 priv->timer.function = tlan_timer;
1da177e4
LT		 260 if (!in_irq())
261 spin_unlock_irqrestore(&priv->lock, flags);
262
c659c38b
SA		 263 priv->timer_set_at = jiffies;
264 priv->timer_type = type;
1da177e4 265 mod_timer(&priv->timer, jiffies + ticks);
6aa20a22 266
c659c38b 267}
1da177e4
LT		 268
269
270/*****************************************************************************
271******************************************************************************
272
c659c38b 273ThunderLAN driver primary functions
1da177e4 274
c659c38b 275these functions are more or less common to all linux network drivers.
1da177e4
LT		 276
277******************************************************************************
278*****************************************************************************/
279
280
281
282
283
c659c38b
SA		 284/***************************************************************
285 * tlan_remove_one
286 *
287 * Returns:
288 * Nothing
289 * Parms:
290 * None
291 *
292 * Goes through the TLanDevices list and frees the device
293 * structs and memory associated with each device (lists
294 * and buffers). It also ureserves the IO port regions
295 * associated with this device.
296 *
297 **************************************************************/
1da177e4
LT		 298
299
36915876 300static void tlan_remove_one(struct pci_dev *pdev)
1da177e4 301{
c659c38b
SA		 302 struct net_device *dev = pci_get_drvdata(pdev);
303 struct tlan_priv *priv = netdev_priv(dev);
6aa20a22 304
c659c38b 305 unregister_netdev(dev);
1da177e4 306
c659c38b
SA		 307 if (priv->dma_storage) {
308 pci_free_consistent(priv->pci_dev,
309 priv->dma_size, priv->dma_storage,
310 priv->dma_storage_dma);
1da177e4
LT		 311 }
312
313#ifdef CONFIG_PCI
314 pci_release_regions(pdev);
315#endif
6aa20a22 316
c659c38b 317 free_netdev(dev);
6aa20a22 318
1e0a8b13 319 cancel_work_sync(&priv->tlan_tqueue);
6aa20a22 320}
1da177e4 321
fa6d5d4f
SA		 322static void tlan_start(struct net_device *dev)
323{
324 tlan_reset_lists(dev);
325 /* NOTE: It might not be necessary to read the stats before a
326 reset if you don't care what the values are.
327 */
328 tlan_read_and_clear_stats(dev, TLAN_IGNORE);
329 tlan_reset_adapter(dev);
330 netif_wake_queue(dev);
331}
332
333static void tlan_stop(struct net_device *dev)
334{
335 struct tlan_priv *priv = netdev_priv(dev);
336
c0a87c22 337 del_timer_sync(&priv->media_timer);
fa6d5d4f
SA		 338 tlan_read_and_clear_stats(dev, TLAN_RECORD);
339 outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD);
340 /* Reset and power down phy */
341 tlan_reset_adapter(dev);
342 if (priv->timer.function != NULL) {
343 del_timer_sync(&priv->timer);
344 priv->timer.function = NULL;
345 }
346}
347
04db6465 348static int __maybe_unused tlan_suspend(struct device *dev_d)
fa6d5d4f 349{
04db6465 350 struct net_device *dev = dev_get_drvdata(dev_d);
fa6d5d4f
SA		 351
352 if (netif_running(dev))
353 tlan_stop(dev);
354
355 netif_device_detach(dev);
fa6d5d4f
SA		 356
357 return 0;
358}
359
04db6465 360static int __maybe_unused tlan_resume(struct device *dev_d)
fa6d5d4f 361{
04db6465 362 struct net_device *dev = dev_get_drvdata(dev_d);
fa6d5d4f
SA		 363 netif_device_attach(dev);
364
365 if (netif_running(dev))
366 tlan_start(dev);
367
368 return 0;
369}
370
04db6465 371static SIMPLE_DEV_PM_OPS(tlan_pm_ops, tlan_suspend, tlan_resume);
fa6d5d4f 372
1da177e4
LT		 373static struct pci_driver tlan_driver = {
374 .name = "tlan",
375 .id_table = tlan_pci_tbl,
376 .probe = tlan_init_one,
36915876 377 .remove = tlan_remove_one,
04db6465 378 .driver.pm = &tlan_pm_ops,
1da177e4
LT		 379};
380
381static int __init tlan_probe(void)
382{
6c04a515 383 int rc = -ENODEV;
6aa20a22 384
50624aab 385 pr_info("%s", tlan_banner);
6aa20a22 386
1da177e4 387 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n");
6aa20a22 388
1da177e4
LT		 389 /* Use new style PCI probing. Now the kernel will
390 do most of this for us */
6c04a515
LP		 391 rc = pci_register_driver(&tlan_driver);
392
393 if (rc != 0) {
50624aab 394 pr_err("Could not register pci driver\n");
6c04a515
LP		 395 goto err_out_pci_free;
396 }
1da177e4
LT		 397
398 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n");
c659c38b 399 tlan_eisa_probe();
6aa20a22 400
50624aab
JP		 401 pr_info("%d device%s installed, PCI: %d EISA: %d\n",
402 tlan_devices_installed, tlan_devices_installed == 1 ? "" : "s",
403 tlan_have_pci, tlan_have_eisa);
1da177e4 404
c659c38b 405 if (tlan_devices_installed == 0) {
6c04a515
LP		 406 rc = -ENODEV;
407 goto err_out_pci_unreg;
1da177e4
LT		 408 }
409 return 0;
6c04a515
LP		 410
411err_out_pci_unreg:
412 pci_unregister_driver(&tlan_driver);
413err_out_pci_free:
6c04a515 414 return rc;
1da177e4 415}
6aa20a22 416
1da177e4 417
36915876 418static int tlan_init_one(struct pci_dev *pdev,
c659c38b 419 const struct pci_device_id *ent)
1da177e4 420{
c659c38b 421 return tlan_probe1(pdev, -1, -1, 0, ent);
1da177e4
LT		 422}
423
424
425/*
c659c38b
SA		 426***************************************************************
427* tlan_probe1
428*
429* Returns:
430* 0 on success, error code on error
431* Parms:
432* none
433*
434* The name is lower case to fit in with all the rest of
435* the netcard_probe names. This function looks for
436* another TLan based adapter, setting it up with the
437* allocated device struct if one is found.
438* tlan_probe has been ported to the new net API and
439* now allocates its own device structure. This function
440* is also used by modules.
441*
442**************************************************************/
443
1dd06ae8
GKH		 444static int tlan_probe1(struct pci_dev *pdev, long ioaddr, int irq, int rev,
445 const struct pci_device_id *ent)
1da177e4
LT		 446{
447
448 struct net_device *dev;
c659c38b 449 struct tlan_priv *priv;
1da177e4
LT		 450 u16 device_id;
451 int reg, rc = -ENODEV;
452
ad9f6713 453#ifdef CONFIG_PCI
1da177e4
LT		 454 if (pdev) {
455 rc = pci_enable_device(pdev);
456 if (rc)
457 return rc;
458
c659c38b 459 rc = pci_request_regions(pdev, tlan_signature);
1da177e4 460 if (rc) {
50624aab 461 pr_err("Could not reserve IO regions\n");
1da177e4
LT		 462 goto err_out;
463 }
464 }
ad9f6713 465#endif /* CONFIG_PCI */
1da177e4 466
c659c38b 467 dev = alloc_etherdev(sizeof(struct tlan_priv));
1da177e4 468 if (dev == NULL) {
1da177e4
LT		 469 rc = -ENOMEM;
470 goto err_out_regions;
471 }
1da177e4 472 SET_NETDEV_DEV(dev, &pdev->dev);
6aa20a22 473
1da177e4
LT		 474 priv = netdev_priv(dev);
475
c659c38b 476 priv->pci_dev = pdev;
c4028958 477 priv->dev = dev;
6aa20a22 478
1da177e4
LT		 479 /* Is this a PCI device? */
480 if (pdev) {
c659c38b 481 u32 pci_io_base = 0;
1da177e4
LT		 482
483 priv->adapter = &board_info[ent->driver_data];
484
284901a9 485 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1da177e4 486 if (rc) {
50624aab 487 pr_err("No suitable PCI mapping available\n");
1da177e4
LT		 488 goto err_out_free_dev;
489 }
490
c659c38b 491 for (reg = 0; reg <= 5; reg++) {
1da177e4
LT		 492 if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) {
493 pci_io_base = pci_resource_start(pdev, reg);
c659c38b
SA		 494 TLAN_DBG(TLAN_DEBUG_GNRL,
495 "IO mapping is available at %x.\n",
496 pci_io_base);
1da177e4
LT		 497 break;
498 }
499 }
500 if (!pci_io_base) {
50624aab 501 pr_err("No IO mappings available\n");
1da177e4
LT		 502 rc = -EIO;
503 goto err_out_free_dev;
504 }
6aa20a22 505
1da177e4
LT		 506 dev->base_addr = pci_io_base;
507 dev->irq = pdev->irq;
c659c38b 508 priv->adapter_rev = pdev->revision;
1da177e4
LT		 509 pci_set_master(pdev);
510 pci_set_drvdata(pdev, dev);
511
512 } else { /* EISA card */
513 /* This is a hack. We need to know which board structure
514 * is suited for this adapter */
515 device_id = inw(ioaddr + EISA_ID2);
1da177e4 516 if (device_id == 0x20F1) {
c659c38b
SA		 517 priv->adapter = &board_info[13]; /* NetFlex-3/E */
518 priv->adapter_rev = 23; /* TLAN 2.3 */
1da177e4
LT		 519 } else {
520 priv->adapter = &board_info[14];
c659c38b 521 priv->adapter_rev = 10; /* TLAN 1.0 */
1da177e4
LT		 522 }
523 dev->base_addr = ioaddr;
524 dev->irq = irq;
525 }
526
527 /* Kernel parameters */
528 if (dev->mem_start) {
529 priv->aui = dev->mem_start & 0x01;
dfc2c0a6
SH		 530 priv->duplex = ((dev->mem_start & 0x06) == 0x06) ? 0
531 : (dev->mem_start & 0x06) >> 1;
532 priv->speed = ((dev->mem_start & 0x18) == 0x18) ? 0
533 : (dev->mem_start & 0x18) >> 3;
6aa20a22 534
c659c38b 535 if (priv->speed == 0x1)
1da177e4 536 priv->speed = TLAN_SPEED_10;
c659c38b 537 else if (priv->speed == 0x2)
1da177e4 538 priv->speed = TLAN_SPEED_100;
c659c38b 539
1da177e4
LT		 540 debug = priv->debug = dev->mem_end;
541 } else {
542 priv->aui = aui[boards_found];
543 priv->speed = speed[boards_found];
544 priv->duplex = duplex[boards_found];
545 priv->debug = debug;
546 }
6aa20a22 547
1da177e4
LT		 548 /* This will be used when we get an adapter error from
549 * within our irq handler */
c659c38b 550 INIT_WORK(&priv->tlan_tqueue, tlan_tx_timeout_work);
1da177e4
LT		 551
552 spin_lock_init(&priv->lock);
6aa20a22 553
c659c38b 554 rc = tlan_init(dev);
1da177e4 555 if (rc) {
50624aab 556 pr_err("Could not set up device\n");
1da177e4
LT		 557 goto err_out_free_dev;
558 }
559
560 rc = register_netdev(dev);
561 if (rc) {
50624aab 562 pr_err("Could not register device\n");
1da177e4
LT		 563 goto err_out_uninit;
564 }
565
6aa20a22 566
c659c38b 567 tlan_devices_installed++;
1da177e4 568 boards_found++;
6aa20a22 569
1da177e4
LT		 570 /* pdev is NULL if this is an EISA device */
571 if (pdev)
572 tlan_have_pci++;
573 else {
c659c38b
SA		 574 priv->next_device = tlan_eisa_devices;
575 tlan_eisa_devices = dev;
1da177e4
LT		 576 tlan_have_eisa++;
577 }
6aa20a22 578
50624aab
JP		 579 netdev_info(dev, "irq=%2d, io=%04x, %s, Rev. %d\n",
580 (int)dev->irq,
581 (int)dev->base_addr,
582 priv->adapter->device_label,
583 priv->adapter_rev);
1da177e4
LT		 584 return 0;
585
586err_out_uninit:
c659c38b
SA		 587 pci_free_consistent(priv->pci_dev, priv->dma_size, priv->dma_storage,
588 priv->dma_storage_dma);
1da177e4
LT		 589err_out_free_dev:
590 free_netdev(dev);
591err_out_regions:
592#ifdef CONFIG_PCI
593 if (pdev)
594 pci_release_regions(pdev);
1da177e4 595err_out:
1e09c106 596#endif
1da177e4
LT		 597 if (pdev)
598 pci_disable_device(pdev);
599 return rc;
600}
601
602
c659c38b 603static void tlan_eisa_cleanup(void)
1da177e4
LT		 604{
605 struct net_device *dev;
c659c38b 606 struct tlan_priv *priv;
6aa20a22 607
c659c38b
SA		 608 while (tlan_have_eisa) {
609 dev = tlan_eisa_devices;
1da177e4 610 priv = netdev_priv(dev);
c659c38b
SA		 611 if (priv->dma_storage) {
612 pci_free_consistent(priv->pci_dev, priv->dma_size,
613 priv->dma_storage,
614 priv->dma_storage_dma);
1da177e4 615 }
c659c38b
SA		 616 release_region(dev->base_addr, 0x10);
617 unregister_netdev(dev);
618 tlan_eisa_devices = priv->next_device;
619 free_netdev(dev);
1da177e4
LT		 620 tlan_have_eisa--;
621 }
622}
6aa20a22
JG		 623
624
1da177e4
LT		 625static void __exit tlan_exit(void)
626{
627 pci_unregister_driver(&tlan_driver);
628
629 if (tlan_have_eisa)
c659c38b 630 tlan_eisa_cleanup();
1da177e4 631
1da177e4
LT		 632}
633
634
635/* Module loading/unloading */
636module_init(tlan_probe);
637module_exit(tlan_exit);
638
639
640
c659c38b
SA		 641/**************************************************************
642 * tlan_eisa_probe
643 *
644 * Returns: 0 on success, 1 otherwise
645 *
646 * Parms: None
647 *
648 *
649 * This functions probes for EISA devices and calls
650 * TLan_probe1 when one is found.
651 *
652 *************************************************************/
1da177e4 653
c659c38b 654static void __init tlan_eisa_probe(void)
1da177e4 655{
c659c38b
SA		 656 long ioaddr;
657 int rc = -ENODEV;
658 int irq;
1da177e4
LT		 659 u16 device_id;
660
6aa20a22 661 if (!EISA_bus) {
1da177e4
LT		 662 TLAN_DBG(TLAN_DEBUG_PROBE, "No EISA bus present\n");
663 return;
664 }
6aa20a22 665
1da177e4
LT		 666 /* Loop through all slots of the EISA bus */
667 for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) {
6aa20a22 668
c659c38b
SA		 669 TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n",
670 (int) ioaddr + 0xc80, inw(ioaddr + EISA_ID));
671 TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n",
672 (int) ioaddr + 0xc82, inw(ioaddr + EISA_ID2));
1da177e4
LT		 673
674
c659c38b
SA		 675 TLAN_DBG(TLAN_DEBUG_PROBE,
676 "Probing for EISA adapter at IO: 0x%4x : ",
677 (int) ioaddr);
678 if (request_region(ioaddr, 0x10, tlan_signature) == NULL)
1da177e4
LT		 679 goto out;
680
6aa20a22 681 if (inw(ioaddr + EISA_ID) != 0x110E) {
1da177e4
LT		 682 release_region(ioaddr, 0x10);
683 goto out;
684 }
6aa20a22 685
1da177e4 686 device_id = inw(ioaddr + EISA_ID2);
6aa20a22 687 if (device_id != 0x20F1 && device_id != 0x40F1) {
c659c38b 688 release_region(ioaddr, 0x10);
1da177e4
LT		 689 goto out;
690 }
6aa20a22 691
c659c38b
SA		 692 /* check if adapter is enabled */
693 if (inb(ioaddr + EISA_CR) != 0x1) {
694 release_region(ioaddr, 0x10);
1da177e4
LT		 695 goto out2;
696 }
6aa20a22
JG		 697
698 if (debug == 0x10)
50624aab 699 pr_info("Found one\n");
1da177e4
LT		 700
701
702 /* Get irq from board */
c659c38b
SA		 703 switch (inb(ioaddr + 0xcc0)) {
704 case(0x10):
705 irq = 5;
706 break;
707 case(0x20):
708 irq = 9;
709 break;
710 case(0x40):
711 irq = 10;
712 break;
713 case(0x80):
714 irq = 11;
715 break;
716 default:
717 goto out;
6aa20a22
JG		 718 }
719
720
1da177e4 721 /* Setup the newly found eisa adapter */
c659c38b
SA		 722 rc = tlan_probe1(NULL, ioaddr, irq,
723 12, NULL);
1da177e4 724 continue;
6aa20a22 725
c659c38b
SA		 726out:
727 if (debug == 0x10)
50624aab 728 pr_info("None found\n");
c659c38b 729 continue;
1da177e4 730
c659c38b
SA		 731out2:
732 if (debug == 0x10)
50624aab 733 pr_info("Card found but it is not enabled, skipping\n");
c659c38b 734 continue;
6aa20a22 735
1da177e4
LT		 736 }
737
c659c38b 738}
1da177e4
LT		 739
740#ifdef CONFIG_NET_POLL_CONTROLLER
c659c38b 741static void tlan_poll(struct net_device *dev)
1da177e4
LT		 742{
743 disable_irq(dev->irq);
c659c38b 744 tlan_handle_interrupt(dev->irq, dev);
1da177e4
LT		 745 enable_irq(dev->irq);
746}
747#endif
748
c659c38b
SA		 749static const struct net_device_ops tlan_netdev_ops = {
750 .ndo_open = tlan_open,
751 .ndo_stop = tlan_close,
752 .ndo_start_xmit = tlan_start_tx,
753 .ndo_tx_timeout = tlan_tx_timeout,
754 .ndo_get_stats = tlan_get_stats,
afc4b13d 755 .ndo_set_rx_mode = tlan_set_multicast_list,
c659c38b 756 .ndo_do_ioctl = tlan_ioctl,
c659c38b 757 .ndo_set_mac_address = eth_mac_addr,
391c5e6e
SH		 758 .ndo_validate_addr = eth_validate_addr,
759#ifdef CONFIG_NET_POLL_CONTROLLER
c659c38b 760 .ndo_poll_controller = tlan_poll,
391c5e6e
SH		 761#endif
762};
6aa20a22 763
e36124d4
OZ		 764static void tlan_get_drvinfo(struct net_device *dev,
765 struct ethtool_drvinfo *info)
766{
767 struct tlan_priv *priv = netdev_priv(dev);
768
769 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
770 if (priv->pci_dev)
771 strlcpy(info->bus_info, pci_name(priv->pci_dev),
772 sizeof(info->bus_info));
773 else
774 strlcpy(info->bus_info, "EISA", sizeof(info->bus_info));
e36124d4
OZ		 775}
776
777static int tlan_get_eeprom_len(struct net_device *dev)
778{
779 return TLAN_EEPROM_SIZE;
780}
1da177e4 781
e36124d4
OZ		 782static int tlan_get_eeprom(struct net_device *dev,
783 struct ethtool_eeprom *eeprom, u8 *data)
784{
785 int i;
786
787 for (i = 0; i < TLAN_EEPROM_SIZE; i++)
788 if (tlan_ee_read_byte(dev, i, &data[i]))
789 return -EIO;
790
791 return 0;
792}
793
794static const struct ethtool_ops tlan_ethtool_ops = {
795 .get_drvinfo = tlan_get_drvinfo,
796 .get_link = ethtool_op_get_link,
797 .get_eeprom_len = tlan_get_eeprom_len,
798 .get_eeprom = tlan_get_eeprom,
799};
1da177e4 800
c659c38b
SA		 801/***************************************************************
802 * tlan_init
803 *
804 * Returns:
805 * 0 on success, error code otherwise.
806 * Parms:
807 * dev The structure of the device to be
808 * init'ed.
809 *
810 * This function completes the initialization of the
811 * device structure and driver. It reserves the IO
812 * addresses, allocates memory for the lists and bounce
813 * buffers, retrieves the MAC address from the eeprom
814 * and assignes the device's methods.
815 *
816 **************************************************************/
817
818static int tlan_init(struct net_device *dev)
1da177e4
LT		 819{
820 int dma_size;
c659c38b 821 int err;
1da177e4 822 int i;
c659c38b 823 struct tlan_priv *priv;
1da177e4
LT		 824
825 priv = netdev_priv(dev);
6aa20a22 826
c659c38b
SA		 827 dma_size = (TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS)
828 * (sizeof(struct tlan_list));
829 priv->dma_storage = pci_alloc_consistent(priv->pci_dev,
830 dma_size,
831 &priv->dma_storage_dma);
832 priv->dma_size = dma_size;
833
834 if (priv->dma_storage == NULL) {
50624aab 835 pr_err("Could not allocate lists and buffers for %s\n",
c659c38b 836 dev->name);
1da177e4
LT		 837 return -ENOMEM;
838 }
c659c38b
SA		 839 priv->rx_list = (struct tlan_list *)
840 ALIGN((unsigned long)priv->dma_storage, 8);
841 priv->rx_list_dma = ALIGN(priv->dma_storage_dma, 8);
842 priv->tx_list = priv->rx_list + TLAN_NUM_RX_LISTS;
843 priv->tx_list_dma =
844 priv->rx_list_dma + sizeof(struct tlan_list)*TLAN_NUM_RX_LISTS;
93e16847 845
1da177e4 846 err = 0;
59be4ad6 847 for (i = 0; i < ETH_ALEN; i++)
c659c38b
SA		 848 err |= tlan_ee_read_byte(dev,
849 (u8) priv->adapter->addr_ofs + i,
850 (u8 *) &dev->dev_addr[i]);
851 if (err) {
50624aab
JP		 852 pr_err("%s: Error reading MAC from eeprom: %d\n",
853 dev->name, err);
1da177e4 854 }
59be4ad6
OZ		 855 /* Olicom OC-2325/OC-2326 have the address byte-swapped */
856 if (priv->adapter->addr_ofs == 0xf8) {
857 for (i = 0; i < ETH_ALEN; i += 2) {
858 char tmp = dev->dev_addr[i];
859 dev->dev_addr[i] = dev->dev_addr[i + 1];
860 dev->dev_addr[i + 1] = tmp;
861 }
862 }
1da177e4
LT		 863
864 netif_carrier_off(dev);
865
866 /* Device methods */
c659c38b 867 dev->netdev_ops = &tlan_netdev_ops;
e36124d4 868 dev->ethtool_ops = &tlan_ethtool_ops;
1da177e4
LT		 869 dev->watchdog_timeo = TX_TIMEOUT;
870
871 return 0;
872
c659c38b 873}
1da177e4
LT		 874
875
876
877
c659c38b
SA		 878/***************************************************************
879 * tlan_open
880 *
881 * Returns:
882 * 0 on success, error code otherwise.
883 * Parms:
884 * dev Structure of device to be opened.
885 *
886 * This routine puts the driver and TLAN adapter in a
887 * state where it is ready to send and receive packets.
888 * It allocates the IRQ, resets and brings the adapter
889 * out of reset, and allows interrupts. It also delays
890 * the startup for autonegotiation or sends a Rx GO
891 * command to the adapter, as appropriate.
892 *
893 **************************************************************/
1da177e4 894
c659c38b 895static int tlan_open(struct net_device *dev)
1da177e4 896{
c659c38b 897 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 898 int err;
6aa20a22 899
c659c38b
SA		 900 priv->tlan_rev = tlan_dio_read8(dev->base_addr, TLAN_DEF_REVISION);
901 err = request_irq(dev->irq, tlan_handle_interrupt, IRQF_SHARED,
902 dev->name, dev);
6aa20a22 903
c659c38b 904 if (err) {
50624aab
JP		 905 netdev_err(dev, "Cannot open because IRQ %d is already in use\n",
906 dev->irq);
1da177e4
LT		 907 return err;
908 }
6aa20a22 909
0010e3f8
KC		 910 timer_setup(&priv->timer, NULL, 0);
911 timer_setup(&priv->media_timer, tlan_phy_monitor, 0);
6aa20a22 912
fa6d5d4f 913 tlan_start(dev);
1da177e4 914
c659c38b
SA		 915 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %x\n",
916 dev->name, priv->tlan_rev);
1da177e4
LT		 917
918 return 0;
919
c659c38b 920}
1da177e4
LT		 921
922
923
c659c38b
SA		 924/**************************************************************
925 * tlan_ioctl
926 *
927 * Returns:
928 * 0 on success, error code otherwise
929 * Params:
930 * dev structure of device to receive ioctl.
931 *
932 * rq ifreq structure to hold userspace data.
933 *
934 * cmd ioctl command.
935 *
936 *
937 *************************************************************/
1da177e4 938
c659c38b 939static int tlan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1da177e4 940{
c659c38b 941 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 942 struct mii_ioctl_data *data = if_mii(rq);
c659c38b 943 u32 phy = priv->phy[priv->phy_num];
6aa20a22 944
c659c38b 945 if (!priv->phy_online)
1da177e4
LT		 946 return -EAGAIN;
947
c659c38b
SA		 948 switch (cmd) {
949 case SIOCGMIIPHY: /* get address of MII PHY in use. */
950 data->phy_id = phy;
df561f66 951 fallthrough;
1da177e4
LT		 952
953
c659c38b
SA		 954 case SIOCGMIIREG: /* read MII PHY register. */
955 tlan_mii_read_reg(dev, data->phy_id & 0x1f,
956 data->reg_num & 0x1f, &data->val_out);
957 return 0;
6aa20a22 958
1da177e4 959
c659c38b
SA		 960 case SIOCSMIIREG: /* write MII PHY register. */
961 tlan_mii_write_reg(dev, data->phy_id & 0x1f,
962 data->reg_num & 0x1f, data->val_in);
963 return 0;
964 default:
965 return -EOPNOTSUPP;
1da177e4 966 }
c659c38b 967}
1da177e4
LT		 968
969
c659c38b
SA		 970/***************************************************************
971 * tlan_tx_timeout
972 *
973 * Returns: nothing
974 *
975 * Params:
976 * dev structure of device which timed out
977 * during transmit.
978 *
979 **************************************************************/
1da177e4 980
0290bd29 981static void tlan_tx_timeout(struct net_device *dev, unsigned int txqueue)
1da177e4 982{
6aa20a22 983
c659c38b 984 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Transmit timed out.\n", dev->name);
6aa20a22 985
1da177e4 986 /* Ok so we timed out, lets see what we can do about it...*/
c659c38b
SA		 987 tlan_free_lists(dev);
988 tlan_reset_lists(dev);
989 tlan_read_and_clear_stats(dev, TLAN_IGNORE);
990 tlan_reset_adapter(dev);
860e9538 991 netif_trans_update(dev); /* prevent tx timeout */
c659c38b 992 netif_wake_queue(dev);
1da177e4
LT		 993
994}
6aa20a22 995
1da177e4 996
c659c38b
SA		 997/***************************************************************
998 * tlan_tx_timeout_work
999 *
1000 * Returns: nothing
1001 *
1002 * Params:
1003 * work work item of device which timed out
1004 *
1005 **************************************************************/
c4028958 1006
c659c38b 1007static void tlan_tx_timeout_work(struct work_struct *work)
c4028958 1008{
c659c38b
SA		 1009 struct tlan_priv *priv =
1010 container_of(work, struct tlan_priv, tlan_tqueue);
c4028958 1011
0290bd29 1012 tlan_tx_timeout(priv->dev, UINT_MAX);
c4028958
DH		 1013}
1014
1015
1da177e4 1016
c659c38b
SA		 1017/***************************************************************
1018 * tlan_start_tx
1019 *
1020 * Returns:
1021 * 0 on success, non-zero on failure.
1022 * Parms:
1023 * skb A pointer to the sk_buff containing the
1024 * frame to be sent.
1025 * dev The device to send the data on.
1026 *
1027 * This function adds a frame to the Tx list to be sent
1028 * ASAP. First it verifies that the adapter is ready and
1029 * there is room in the queue. Then it sets up the next
1030 * available list, copies the frame to the corresponding
1031 * buffer. If the adapter Tx channel is idle, it gives
1032 * the adapter a Tx Go command on the list, otherwise it
1033 * sets the forward address of the previous list to point
1034 * to this one. Then it frees the sk_buff.
1035 *
1036 **************************************************************/
1037
1038static netdev_tx_t tlan_start_tx(struct sk_buff *skb, struct net_device *dev)
1da177e4 1039{
c659c38b 1040 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1041 dma_addr_t tail_list_phys;
c659c38b 1042 struct tlan_list *tail_list;
1da177e4 1043 unsigned long flags;
8953f128 1044 unsigned int txlen;
1da177e4 1045
c659c38b
SA		 1046 if (!priv->phy_online) {
1047 TLAN_DBG(TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n",
1048 dev->name);
1da177e4 1049 dev_kfree_skb_any(skb);
6ed10654 1050 return NETDEV_TX_OK;
1da177e4
LT		 1051 }
1052
41873e9a 1053 if (skb_padto(skb, TLAN_MIN_FRAME_SIZE))
6ed10654 1054 return NETDEV_TX_OK;
8953f128 1055 txlen = max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE);
41873e9a 1056
c659c38b
SA		 1057 tail_list = priv->tx_list + priv->tx_tail;
1058 tail_list_phys =
1059 priv->tx_list_dma + sizeof(struct tlan_list)*priv->tx_tail;
6aa20a22 1060
c659c38b
SA		 1061 if (tail_list->c_stat != TLAN_CSTAT_UNUSED) {
1062 TLAN_DBG(TLAN_DEBUG_TX,
1063 "TRANSMIT: %s is busy (Head=%d Tail=%d)\n",
1064 dev->name, priv->tx_head, priv->tx_tail);
1da177e4 1065 netif_stop_queue(dev);
c659c38b 1066 priv->tx_busy_count++;
5b548140 1067 return NETDEV_TX_BUSY;
1da177e4
LT		 1068 }
1069
1070 tail_list->forward = 0;
1071
c659c38b 1072 tail_list->buffer[0].address = pci_map_single(priv->pci_dev,
5eeabf51
SA		 1073 skb->data, txlen,
1074 PCI_DMA_TODEVICE);
c659c38b 1075 tlan_store_skb(tail_list, skb);
1da177e4 1076
c659c38b 1077 tail_list->frame_size = (u16) txlen;
8953f128 1078 tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) txlen;
41873e9a
SH		 1079 tail_list->buffer[1].count = 0;
1080 tail_list->buffer[1].address = 0;
1da177e4
LT		 1081
1082 spin_lock_irqsave(&priv->lock, flags);
c659c38b
SA		 1083 tail_list->c_stat = TLAN_CSTAT_READY;
1084 if (!priv->tx_in_progress) {
1085 priv->tx_in_progress = 1;
1086 TLAN_DBG(TLAN_DEBUG_TX,
1087 "TRANSMIT: Starting TX on buffer %d\n",
1088 priv->tx_tail);
1089 outl(tail_list_phys, dev->base_addr + TLAN_CH_PARM);
1090 outl(TLAN_HC_GO, dev->base_addr + TLAN_HOST_CMD);
1da177e4 1091 } else {
c659c38b
SA		 1092 TLAN_DBG(TLAN_DEBUG_TX,
1093 "TRANSMIT: Adding buffer %d to TX channel\n",
1094 priv->tx_tail);
1095 if (priv->tx_tail == 0) {
1096 (priv->tx_list + (TLAN_NUM_TX_LISTS - 1))->forward
dfc2c0a6 1097 = tail_list_phys;
1da177e4 1098 } else {
c659c38b 1099 (priv->tx_list + (priv->tx_tail - 1))->forward
dfc2c0a6 1100 = tail_list_phys;
1da177e4
LT		 1101 }
1102 }
1103 spin_unlock_irqrestore(&priv->lock, flags);
1104
c659c38b 1105 CIRC_INC(priv->tx_tail, TLAN_NUM_TX_LISTS);
1da177e4 1106
6ed10654 1107 return NETDEV_TX_OK;
1da177e4 1108
c659c38b 1109}
1da177e4
LT		 1110
1111
1112
1113
c659c38b
SA		 1114/***************************************************************
1115 * tlan_handle_interrupt
1116 *
1117 * Returns:
1118 * Nothing
1119 * Parms:
1120 * irq The line on which the interrupt
1121 * occurred.
1122 * dev_id A pointer to the device assigned to
1123 * this irq line.
1124 *
1125 * This function handles an interrupt generated by its
1126 * assigned TLAN adapter. The function deactivates
1127 * interrupts on its adapter, records the type of
1128 * interrupt, executes the appropriate subhandler, and
1129 * acknowdges the interrupt to the adapter (thus
1130 * re-enabling adapter interrupts.
1131 *
1132 **************************************************************/
1da177e4 1133
c659c38b 1134static irqreturn_t tlan_handle_interrupt(int irq, void *dev_id)
1da177e4 1135{
a3ccc789 1136 struct net_device *dev = dev_id;
c659c38b 1137 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1138 u16 host_int;
a3ccc789 1139 u16 type;
1da177e4
LT		 1140
1141 spin_lock(&priv->lock);
1142
c659c38b
SA		 1143 host_int = inw(dev->base_addr + TLAN_HOST_INT);
1144 type = (host_int & TLAN_HI_IT_MASK) >> 2;
1145 if (type) {
a3ccc789
SH		 1146 u32 ack;
1147 u32 host_cmd;
1da177e4 1148
c659c38b
SA		 1149 outw(host_int, dev->base_addr + TLAN_HOST_INT);
1150 ack = tlan_int_vector[type](dev, host_int);
1da177e4 1151
c659c38b
SA		 1152 if (ack) {
1153 host_cmd = TLAN_HC_ACK | ack | (type << 18);
1154 outl(host_cmd, dev->base_addr + TLAN_HOST_CMD);
a3ccc789 1155 }
1da177e4
LT		 1156 }
1157
1158 spin_unlock(&priv->lock);
1159
a3ccc789 1160 return IRQ_RETVAL(type);
c659c38b 1161}
1da177e4
LT		 1162
1163
1164
1165
c659c38b
SA		 1166/***************************************************************
1167 * tlan_close
1168 *
1169 * Returns:
1170 * An error code.
1171 * Parms:
1172 * dev The device structure of the device to
1173 * close.
1174 *
1175 * This function shuts down the adapter. It records any
1176 * stats, puts the adapter into reset state, deactivates
1177 * its time as needed, and frees the irq it is using.
1178 *
1179 **************************************************************/
1da177e4 1180
c659c38b 1181static int tlan_close(struct net_device *dev)
1da177e4 1182{
fa6d5d4f 1183 tlan_stop(dev);
6aa20a22 1184
c659c38b
SA		 1185 free_irq(dev->irq, dev);
1186 tlan_free_lists(dev);
1187 TLAN_DBG(TLAN_DEBUG_GNRL, "Device %s closed.\n", dev->name);
1da177e4
LT		 1188
1189 return 0;
1190
c659c38b 1191}
1da177e4
LT		 1192
1193
1194
1195
c659c38b
SA		 1196/***************************************************************
1197 * tlan_get_stats
1198 *
1199 * Returns:
1200 * A pointer to the device's statistics structure.
1201 * Parms:
1202 * dev The device structure to return the
1203 * stats for.
1204 *
1205 * This function updates the devices statistics by reading
1206 * the TLAN chip's onboard registers. Then it returns the
1207 * address of the statistics structure.
1208 *
1209 **************************************************************/
1da177e4 1210
c659c38b 1211static struct net_device_stats *tlan_get_stats(struct net_device *dev)
1da177e4 1212{
c659c38b 1213 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1214 int i;
1215
1216 /* Should only read stats if open ? */
c659c38b 1217 tlan_read_and_clear_stats(dev, TLAN_RECORD);
1da177e4 1218
c659c38b
SA		 1219 TLAN_DBG(TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %d\n", dev->name,
1220 priv->rx_eoc_count);
1221 TLAN_DBG(TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %d\n", dev->name,
1222 priv->tx_busy_count);
1223 if (debug & TLAN_DEBUG_GNRL) {
1224 tlan_print_dio(dev->base_addr);
1225 tlan_phy_print(dev);
1da177e4 1226 }
c659c38b
SA		 1227 if (debug & TLAN_DEBUG_LIST) {
1228 for (i = 0; i < TLAN_NUM_RX_LISTS; i++)
1229 tlan_print_list(priv->rx_list + i, "RX", i);
1230 for (i = 0; i < TLAN_NUM_TX_LISTS; i++)
1231 tlan_print_list(priv->tx_list + i, "TX", i);
1da177e4 1232 }
6aa20a22 1233
f8f31544 1234 return &dev->stats;
1da177e4 1235
c659c38b 1236}
1da177e4
LT		 1237
1238
1239
1240
c659c38b
SA		 1241/***************************************************************
1242 * tlan_set_multicast_list
1243 *
1244 * Returns:
1245 * Nothing
1246 * Parms:
1247 * dev The device structure to set the
1248 * multicast list for.
1249 *
1250 * This function sets the TLAN adaptor to various receive
1251 * modes. If the IFF_PROMISC flag is set, promiscuous
1252 * mode is acitviated. Otherwise, promiscuous mode is
1253 * turned off. If the IFF_ALLMULTI flag is set, then
1254 * the hash table is set to receive all group addresses.
1255 * Otherwise, the first three multicast addresses are
1256 * stored in AREG_1-3, and the rest are selected via the
1257 * hash table, as necessary.
1258 *
1259 **************************************************************/
1da177e4 1260
c659c38b 1261static void tlan_set_multicast_list(struct net_device *dev)
6aa20a22 1262{
22bedad3 1263 struct netdev_hw_addr *ha;
1da177e4
LT		 1264 u32 hash1 = 0;
1265 u32 hash2 = 0;
1266 int i;
1267 u32 offset;
1268 u8 tmp;
1269
c659c38b
SA		 1270 if (dev->flags & IFF_PROMISC) {
1271 tmp = tlan_dio_read8(dev->base_addr, TLAN_NET_CMD);
1272 tlan_dio_write8(dev->base_addr,
1273 TLAN_NET_CMD, tmp | TLAN_NET_CMD_CAF);
1da177e4 1274 } else {
c659c38b
SA		 1275 tmp = tlan_dio_read8(dev->base_addr, TLAN_NET_CMD);
1276 tlan_dio_write8(dev->base_addr,
1277 TLAN_NET_CMD, tmp & ~TLAN_NET_CMD_CAF);
1278 if (dev->flags & IFF_ALLMULTI) {
1279 for (i = 0; i < 3; i++)
1280 tlan_set_mac(dev, i + 1, NULL);
1281 tlan_dio_write32(dev->base_addr, TLAN_HASH_1,
1282 0xffffffff);
1283 tlan_dio_write32(dev->base_addr, TLAN_HASH_2,
1284 0xffffffff);
1da177e4 1285 } else {
567ec874 1286 i = 0;
22bedad3 1287 netdev_for_each_mc_addr(ha, dev) {
c659c38b
SA		 1288 if (i < 3) {
1289 tlan_set_mac(dev, i + 1,
22bedad3 1290 (char *) &ha->addr);
1da177e4 1291 } else {
c659c38b
SA		 1292 offset =
1293 tlan_hash_func((u8 *)&ha->addr);
1294 if (offset < 32)
1295 hash1 |= (1 << offset);
1da177e4 1296 else
c659c38b 1297 hash2 |= (1 << (offset - 32));
1da177e4 1298 }
567ec874 1299 i++;
1da177e4 1300 }
c659c38b
SA		 1301 for ( ; i < 3; i++)
1302 tlan_set_mac(dev, i + 1, NULL);
1303 tlan_dio_write32(dev->base_addr, TLAN_HASH_1, hash1);
1304 tlan_dio_write32(dev->base_addr, TLAN_HASH_2, hash2);
1da177e4
LT		 1305 }
1306 }
1307
c659c38b 1308}
1da177e4
LT		 1309
1310
1311
1312/*****************************************************************************
1313******************************************************************************
1314
c659c38b 1315ThunderLAN driver interrupt vectors and table
1da177e4 1316
c659c38b
SA		 1317please see chap. 4, "Interrupt Handling" of the "ThunderLAN
1318Programmer's Guide" for more informations on handling interrupts
1319generated by TLAN based adapters.
1da177e4
LT		 1320
1321******************************************************************************
1322*****************************************************************************/
1323
1324
1da177e4
LT		 1325
1326
c659c38b
SA		 1327/***************************************************************
1328 * tlan_handle_tx_eof
1329 *
1330 * Returns:
1331 * 1
1332 * Parms:
1333 * dev Device assigned the IRQ that was
1334 * raised.
1335 * host_int The contents of the HOST_INT
1336 * port.
1337 *
1338 * This function handles Tx EOF interrupts which are raised
1339 * by the adapter when it has completed sending the
1340 * contents of a buffer. If detemines which list/buffer
1341 * was completed and resets it. If the buffer was the last
1342 * in the channel (EOC), then the function checks to see if
1343 * another buffer is ready to send, and if so, sends a Tx
1344 * Go command. Finally, the driver activates/continues the
1345 * activity LED.
1346 *
1347 **************************************************************/
1348
1349static u32 tlan_handle_tx_eof(struct net_device *dev, u16 host_int)
1da177e4 1350{
c659c38b 1351 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1352 int eoc = 0;
c659c38b 1353 struct tlan_list *head_list;
1da177e4
LT		 1354 dma_addr_t head_list_phys;
1355 u32 ack = 0;
c659c38b 1356 u16 tmp_c_stat;
6aa20a22 1357
c659c38b
SA		 1358 TLAN_DBG(TLAN_DEBUG_TX,
1359 "TRANSMIT: Handling TX EOF (Head=%d Tail=%d)\n",
1360 priv->tx_head, priv->tx_tail);
1361 head_list = priv->tx_list + priv->tx_head;
1da177e4 1362
c659c38b
SA		 1363 while (((tmp_c_stat = head_list->c_stat) & TLAN_CSTAT_FRM_CMP)
1364 && (ack < 255)) {
1365 struct sk_buff *skb = tlan_get_skb(head_list);
5eeabf51 1366
1da177e4 1367 ack++;
c659c38b 1368 pci_unmap_single(priv->pci_dev, head_list->buffer[0].address,
5eeabf51
SA		 1369 max(skb->len,
1370 (unsigned int)TLAN_MIN_FRAME_SIZE),
1371 PCI_DMA_TODEVICE);
1372 dev_kfree_skb_any(skb);
1373 head_list->buffer[8].address = 0;
1374 head_list->buffer[9].address = 0;
6aa20a22 1375
c659c38b 1376 if (tmp_c_stat & TLAN_CSTAT_EOC)
1da177e4 1377 eoc = 1;
6aa20a22 1378
c659c38b 1379 dev->stats.tx_bytes += head_list->frame_size;
1da177e4 1380
c659c38b 1381 head_list->c_stat = TLAN_CSTAT_UNUSED;
6aa20a22 1382 netif_start_queue(dev);
c659c38b
SA		 1383 CIRC_INC(priv->tx_head, TLAN_NUM_TX_LISTS);
1384 head_list = priv->tx_list + priv->tx_head;
1da177e4
LT		 1385 }
1386
1387 if (!ack)
50624aab
JP		 1388 netdev_info(dev,
1389 "Received interrupt for uncompleted TX frame\n");
c659c38b
SA		 1390
1391 if (eoc) {
1392 TLAN_DBG(TLAN_DEBUG_TX,
1393 "TRANSMIT: handling TX EOC (Head=%d Tail=%d)\n",
1394 priv->tx_head, priv->tx_tail);
1395 head_list = priv->tx_list + priv->tx_head;
1396 head_list_phys = priv->tx_list_dma
1397 + sizeof(struct tlan_list)*priv->tx_head;
f45437ef
SA		 1398 if ((head_list->c_stat & TLAN_CSTAT_READY)
1399 == TLAN_CSTAT_READY) {
c659c38b 1400 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4
LT		 1401 ack |= TLAN_HC_GO;
1402 } else {
c659c38b 1403 priv->tx_in_progress = 0;
1da177e4
LT		 1404 }
1405 }
6aa20a22 1406
c659c38b
SA		 1407 if (priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED) {
1408 tlan_dio_write8(dev->base_addr,
1409 TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT);
1410 if (priv->timer.function == NULL) {
841b86f3 1411 priv->timer.function = tlan_timer;
c659c38b
SA		 1412 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
1413 priv->timer_set_at = jiffies;
1414 priv->timer_type = TLAN_TIMER_ACTIVITY;
1415 add_timer(&priv->timer);
1416 } else if (priv->timer_type == TLAN_TIMER_ACTIVITY) {
1417 priv->timer_set_at = jiffies;
1da177e4
LT		 1418 }
1419 }
1420
1421 return ack;
1422
c659c38b 1423}
1da177e4
LT		 1424
1425
1426
1427
c659c38b
SA		 1428/***************************************************************
1429 * TLan_HandleStatOverflow
1430 *
1431 * Returns:
1432 * 1
1433 * Parms:
1434 * dev Device assigned the IRQ that was
1435 * raised.
1436 * host_int The contents of the HOST_INT
1437 * port.
1438 *
1439 * This function handles the Statistics Overflow interrupt
1440 * which means that one or more of the TLAN statistics
1441 * registers has reached 1/2 capacity and needs to be read.
1442 *
1443 **************************************************************/
1da177e4 1444
c659c38b 1445static u32 tlan_handle_stat_overflow(struct net_device *dev, u16 host_int)
1da177e4 1446{
c659c38b 1447 tlan_read_and_clear_stats(dev, TLAN_RECORD);
1da177e4
LT		 1448
1449 return 1;
1450
c659c38b
SA		 1451}
1452
1453
1454
1455
1456/***************************************************************
1457 * TLan_HandleRxEOF
1458 *
1459 * Returns:
1460 * 1
1461 * Parms:
1462 * dev Device assigned the IRQ that was
1463 * raised.
1464 * host_int The contents of the HOST_INT
1465 * port.
1466 *
1467 * This function handles the Rx EOF interrupt which
1468 * indicates a frame has been received by the adapter from
1469 * the net and the frame has been transferred to memory.
1470 * The function determines the bounce buffer the frame has
1471 * been loaded into, creates a new sk_buff big enough to
1472 * hold the frame, and sends it to protocol stack. It
1473 * then resets the used buffer and appends it to the end
1474 * of the list. If the frame was the last in the Rx
1475 * channel (EOC), the function restarts the receive channel
1476 * by sending an Rx Go command to the adapter. Then it
1477 * activates/continues the activity LED.
1478 *
1479 **************************************************************/
1480
1481static u32 tlan_handle_rx_eof(struct net_device *dev, u16 host_int)
1da177e4 1482{
c659c38b 1483 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1484 u32 ack = 0;
1485 int eoc = 0;
c659c38b 1486 struct tlan_list *head_list;
1da177e4 1487 struct sk_buff *skb;
c659c38b
SA		 1488 struct tlan_list *tail_list;
1489 u16 tmp_c_stat;
1da177e4
LT		 1490 dma_addr_t head_list_phys;
1491
c659c38b
SA		 1492 TLAN_DBG(TLAN_DEBUG_RX, "RECEIVE: handling RX EOF (Head=%d Tail=%d)\n",
1493 priv->rx_head, priv->rx_tail);
1494 head_list = priv->rx_list + priv->rx_head;
1495 head_list_phys =
1496 priv->rx_list_dma + sizeof(struct tlan_list)*priv->rx_head;
6aa20a22 1497
c659c38b
SA		 1498 while (((tmp_c_stat = head_list->c_stat) & TLAN_CSTAT_FRM_CMP)
1499 && (ack < 255)) {
1500 dma_addr_t frame_dma = head_list->buffer[0].address;
1501 u32 frame_size = head_list->frame_size;
5eeabf51
SA		 1502 struct sk_buff *new_skb;
1503
1da177e4 1504 ack++;
c659c38b 1505 if (tmp_c_stat & TLAN_CSTAT_EOC)
1da177e4 1506 eoc = 1;
6aa20a22 1507
89d71a66
ED		 1508 new_skb = netdev_alloc_skb_ip_align(dev,
1509 TLAN_MAX_FRAME_SIZE + 5);
c659c38b 1510 if (!new_skb)
5eeabf51 1511 goto drop_and_reuse;
6aa20a22 1512
c659c38b
SA		 1513 skb = tlan_get_skb(head_list);
1514 pci_unmap_single(priv->pci_dev, frame_dma,
5eeabf51 1515 TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
c659c38b 1516 skb_put(skb, frame_size);
1da177e4 1517
c659c38b 1518 dev->stats.rx_bytes += frame_size;
1da177e4 1519
c659c38b
SA		 1520 skb->protocol = eth_type_trans(skb, dev);
1521 netif_rx(skb);
6aa20a22 1522
c659c38b
SA		 1523 head_list->buffer[0].address =
1524 pci_map_single(priv->pci_dev, new_skb->data,
1525 TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
93e16847 1526
c659c38b 1527 tlan_store_skb(head_list, new_skb);
dfc2c0a6 1528drop_and_reuse:
1da177e4 1529 head_list->forward = 0;
c659c38b
SA		 1530 head_list->c_stat = 0;
1531 tail_list = priv->rx_list + priv->rx_tail;
1da177e4
LT		 1532 tail_list->forward = head_list_phys;
1533
c659c38b
SA		 1534 CIRC_INC(priv->rx_head, TLAN_NUM_RX_LISTS);
1535 CIRC_INC(priv->rx_tail, TLAN_NUM_RX_LISTS);
1536 head_list = priv->rx_list + priv->rx_head;
1537 head_list_phys = priv->rx_list_dma
1538 + sizeof(struct tlan_list)*priv->rx_head;
1da177e4
LT		 1539 }
1540
1541 if (!ack)
50624aab
JP		 1542 netdev_info(dev,
1543 "Received interrupt for uncompleted RX frame\n");
c659c38b
SA		 1544
1545
1546 if (eoc) {
1547 TLAN_DBG(TLAN_DEBUG_RX,
1548 "RECEIVE: handling RX EOC (Head=%d Tail=%d)\n",
1549 priv->rx_head, priv->rx_tail);
1550 head_list = priv->rx_list + priv->rx_head;
1551 head_list_phys = priv->rx_list_dma
1552 + sizeof(struct tlan_list)*priv->rx_head;
1553 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4 1554 ack |= TLAN_HC_GO | TLAN_HC_RT;
c659c38b 1555 priv->rx_eoc_count++;
1da177e4
LT		 1556 }
1557
c659c38b
SA		 1558 if (priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED) {
1559 tlan_dio_write8(dev->base_addr,
1560 TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT);
1561 if (priv->timer.function == NULL) {
841b86f3 1562 priv->timer.function = tlan_timer;
1da177e4 1563 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
c659c38b
SA		 1564 priv->timer_set_at = jiffies;
1565 priv->timer_type = TLAN_TIMER_ACTIVITY;
1da177e4 1566 add_timer(&priv->timer);
c659c38b
SA		 1567 } else if (priv->timer_type == TLAN_TIMER_ACTIVITY) {
1568 priv->timer_set_at = jiffies;
1da177e4
LT		 1569 }
1570 }
1571
1da177e4
LT		 1572 return ack;
1573
c659c38b 1574}
1da177e4
LT		 1575
1576
1577
1578
c659c38b
SA		 1579/***************************************************************
1580 * tlan_handle_dummy
1581 *
1582 * Returns:
1583 * 1
1584 * Parms:
1585 * dev Device assigned the IRQ that was
1586 * raised.
1587 * host_int The contents of the HOST_INT
1588 * port.
1589 *
1590 * This function handles the Dummy interrupt, which is
1591 * raised whenever a test interrupt is generated by setting
1592 * the Req_Int bit of HOST_CMD to 1.
1593 *
1594 **************************************************************/
1da177e4 1595
c659c38b 1596static u32 tlan_handle_dummy(struct net_device *dev, u16 host_int)
1da177e4 1597{
50624aab 1598 netdev_info(dev, "Test interrupt\n");
1da177e4
LT		 1599 return 1;
1600
c659c38b 1601}
1da177e4
LT		 1602
1603
1604
1605
c659c38b
SA		 1606/***************************************************************
1607 * tlan_handle_tx_eoc
1608 *
1609 * Returns:
1610 * 1
1611 * Parms:
1612 * dev Device assigned the IRQ that was
1613 * raised.
1614 * host_int The contents of the HOST_INT
1615 * port.
1616 *
1617 * This driver is structured to determine EOC occurrences by
1618 * reading the CSTAT member of the list structure. Tx EOC
1619 * interrupts are disabled via the DIO INTDIS register.
1620 * However, TLAN chips before revision 3.0 didn't have this
1621 * functionality, so process EOC events if this is the
1622 * case.
1623 *
1624 **************************************************************/
1da177e4 1625
c659c38b 1626static u32 tlan_handle_tx_eoc(struct net_device *dev, u16 host_int)
1da177e4 1627{
c659c38b
SA		 1628 struct tlan_priv *priv = netdev_priv(dev);
1629 struct tlan_list *head_list;
1da177e4
LT		 1630 dma_addr_t head_list_phys;
1631 u32 ack = 1;
6aa20a22 1632
c659c38b
SA		 1633 if (priv->tlan_rev < 0x30) {
1634 TLAN_DBG(TLAN_DEBUG_TX,
1635 "TRANSMIT: handling TX EOC (Head=%d Tail=%d) -- IRQ\n",
1636 priv->tx_head, priv->tx_tail);
1637 head_list = priv->tx_list + priv->tx_head;
1638 head_list_phys = priv->tx_list_dma
1639 + sizeof(struct tlan_list)*priv->tx_head;
f45437ef
SA		 1640 if ((head_list->c_stat & TLAN_CSTAT_READY)
1641 == TLAN_CSTAT_READY) {
1da177e4 1642 netif_stop_queue(dev);
c659c38b 1643 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4
LT		 1644 ack |= TLAN_HC_GO;
1645 } else {
c659c38b 1646 priv->tx_in_progress = 0;
1da177e4
LT		 1647 }
1648 }
1649
1650 return ack;
1651
c659c38b 1652}
1da177e4
LT		 1653
1654
1655
1656
c659c38b
SA		 1657/***************************************************************
1658 * tlan_handle_status_check
1659 *
1660 * Returns:
1661 * 0 if Adapter check, 1 if Network Status check.
1662 * Parms:
1663 * dev Device assigned the IRQ that was
1664 * raised.
1665 * host_int The contents of the HOST_INT
1666 * port.
1667 *
1668 * This function handles Adapter Check/Network Status
1669 * interrupts generated by the adapter. It checks the
1670 * vector in the HOST_INT register to determine if it is
1671 * an Adapter Check interrupt. If so, it resets the
1672 * adapter. Otherwise it clears the status registers
1673 * and services the PHY.
1674 *
1675 **************************************************************/
1da177e4 1676
c659c38b 1677static u32 tlan_handle_status_check(struct net_device *dev, u16 host_int)
6aa20a22 1678{
c659c38b 1679 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1680 u32 ack;
1681 u32 error;
1682 u8 net_sts;
1683 u32 phy;
1684 u16 tlphy_ctl;
1685 u16 tlphy_sts;
6aa20a22 1686
1da177e4 1687 ack = 1;
c659c38b
SA		 1688 if (host_int & TLAN_HI_IV_MASK) {
1689 netif_stop_queue(dev);
1690 error = inl(dev->base_addr + TLAN_CH_PARM);
50624aab 1691 netdev_info(dev, "Adaptor Error = 0x%x\n", error);
c659c38b
SA		 1692 tlan_read_and_clear_stats(dev, TLAN_RECORD);
1693 outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD);
1da177e4
LT		 1694
1695 schedule_work(&priv->tlan_tqueue);
1696
1697 netif_wake_queue(dev);
1698 ack = 0;
1699 } else {
c659c38b
SA		 1700 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Status Check\n", dev->name);
1701 phy = priv->phy[priv->phy_num];
1702
1703 net_sts = tlan_dio_read8(dev->base_addr, TLAN_NET_STS);
1704 if (net_sts) {
1705 tlan_dio_write8(dev->base_addr, TLAN_NET_STS, net_sts);
1706 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Net_Sts = %x\n",
1707 dev->name, (unsigned) net_sts);
1da177e4 1708 }
c659c38b
SA		 1709 if ((net_sts & TLAN_NET_STS_MIRQ) && (priv->phy_num == 0)) {
1710 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_STS, &tlphy_sts);
1711 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl);
1712 if (!(tlphy_sts & TLAN_TS_POLOK) &&
1713 !(tlphy_ctl & TLAN_TC_SWAPOL)) {
1714 tlphy_ctl |= TLAN_TC_SWAPOL;
1715 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL,
1716 tlphy_ctl);
1717 } else if ((tlphy_sts & TLAN_TS_POLOK) &&
1718 (tlphy_ctl & TLAN_TC_SWAPOL)) {
1719 tlphy_ctl &= ~TLAN_TC_SWAPOL;
1720 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL,
1721 tlphy_ctl);
1da177e4 1722 }
c659c38b
SA		 1723
1724 if (debug)
1725 tlan_phy_print(dev);
1da177e4
LT		 1726 }
1727 }
1728
1729 return ack;
1730
c659c38b 1731}
1da177e4
LT		 1732
1733
1734
1735
c659c38b
SA		 1736/***************************************************************
1737 * tlan_handle_rx_eoc
1738 *
1739 * Returns:
1740 * 1
1741 * Parms:
1742 * dev Device assigned the IRQ that was
1743 * raised.
1744 * host_int The contents of the HOST_INT
1745 * port.
1746 *
1747 * This driver is structured to determine EOC occurrences by
1748 * reading the CSTAT member of the list structure. Rx EOC
1749 * interrupts are disabled via the DIO INTDIS register.
1750 * However, TLAN chips before revision 3.0 didn't have this
1751 * CSTAT member or a INTDIS register, so if this chip is
1752 * pre-3.0, process EOC interrupts normally.
1753 *
1754 **************************************************************/
1da177e4 1755
c659c38b 1756static u32 tlan_handle_rx_eoc(struct net_device *dev, u16 host_int)
1da177e4 1757{
c659c38b 1758 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1759 dma_addr_t head_list_phys;
1760 u32 ack = 1;
1761
c659c38b
SA		 1762 if (priv->tlan_rev < 0x30) {
1763 TLAN_DBG(TLAN_DEBUG_RX,
1764 "RECEIVE: Handling RX EOC (head=%d tail=%d) -- IRQ\n",
1765 priv->rx_head, priv->rx_tail);
1766 head_list_phys = priv->rx_list_dma
1767 + sizeof(struct tlan_list)*priv->rx_head;
1768 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4 1769 ack |= TLAN_HC_GO | TLAN_HC_RT;
c659c38b 1770 priv->rx_eoc_count++;
1da177e4
LT		 1771 }
1772
1773 return ack;
1774
c659c38b 1775}
1da177e4
LT		 1776
1777
1778
1779
1780/*****************************************************************************
1781******************************************************************************
1782
c659c38b 1783ThunderLAN driver timer function
1da177e4
LT		 1784
1785******************************************************************************
1786*****************************************************************************/
1787
1788
c659c38b
SA		 1789/***************************************************************
1790 * tlan_timer
1791 *
1792 * Returns:
1793 * Nothing
1794 * Parms:
1795 * data A value given to add timer when
1796 * add_timer was called.
1797 *
1798 * This function handles timed functionality for the
1799 * TLAN driver. The two current timer uses are for
1800 * delaying for autonegotionation and driving the ACT LED.
1801 * - Autonegotiation requires being allowed about
1802 * 2 1/2 seconds before attempting to transmit a
1803 * packet. It would be a very bad thing to hang
1804 * the kernel this long, so the driver doesn't
1805 * allow transmission 'til after this time, for
1806 * certain PHYs. It would be much nicer if all
1807 * PHYs were interrupt-capable like the internal
1808 * PHY.
1809 * - The ACT LED, which shows adapter activity, is
1810 * driven by the driver, and so must be left on
1811 * for a short period to power up the LED so it
1812 * can be seen. This delay can be changed by
1813 * changing the TLAN_TIMER_ACT_DELAY in tlan.h,
1814 * if desired. 100 ms produces a slightly
1815 * sluggish response.
1816 *
1817 **************************************************************/
1818
0010e3f8 1819static void tlan_timer(struct timer_list *t)
1da177e4 1820{
0010e3f8
KC		 1821 struct tlan_priv *priv = from_timer(priv, t, timer);
1822 struct net_device *dev = priv->dev;
1da177e4
LT		 1823 u32 elapsed;
1824 unsigned long flags = 0;
1825
1826 priv->timer.function = NULL;
1827
c659c38b 1828 switch (priv->timer_type) {
c659c38b
SA		 1829 case TLAN_TIMER_PHY_PDOWN:
1830 tlan_phy_power_down(dev);
1831 break;
1832 case TLAN_TIMER_PHY_PUP:
1833 tlan_phy_power_up(dev);
1834 break;
1835 case TLAN_TIMER_PHY_RESET:
1836 tlan_phy_reset(dev);
1837 break;
1838 case TLAN_TIMER_PHY_START_LINK:
1839 tlan_phy_start_link(dev);
1840 break;
1841 case TLAN_TIMER_PHY_FINISH_AN:
1842 tlan_phy_finish_auto_neg(dev);
1843 break;
1844 case TLAN_TIMER_FINISH_RESET:
1845 tlan_finish_reset(dev);
1846 break;
1847 case TLAN_TIMER_ACTIVITY:
1848 spin_lock_irqsave(&priv->lock, flags);
1849 if (priv->timer.function == NULL) {
1850 elapsed = jiffies - priv->timer_set_at;
1851 if (elapsed >= TLAN_TIMER_ACT_DELAY) {
1852 tlan_dio_write8(dev->base_addr,
1853 TLAN_LED_REG, TLAN_LED_LINK);
1854 } else {
c659c38b
SA		 1855 priv->timer.expires = priv->timer_set_at
1856 + TLAN_TIMER_ACT_DELAY;
1857 spin_unlock_irqrestore(&priv->lock, flags);
1858 add_timer(&priv->timer);
1859 break;
1da177e4 1860 }
c659c38b
SA		 1861 }
1862 spin_unlock_irqrestore(&priv->lock, flags);
1863 break;
1864 default:
1865 break;
1da177e4
LT		 1866 }
1867
c659c38b 1868}
1da177e4
LT		 1869
1870
1da177e4
LT		 1871/*****************************************************************************
1872******************************************************************************
1873
c659c38b 1874ThunderLAN driver adapter related routines
1da177e4
LT		 1875
1876******************************************************************************
1877*****************************************************************************/
1878
1879
c659c38b
SA		 1880/***************************************************************
1881 * tlan_reset_lists
1882 *
1883 * Returns:
1884 * Nothing
1885 * Parms:
1886 * dev The device structure with the list
b903036a 1887 * structures to be reset.
c659c38b
SA		 1888 *
1889 * This routine sets the variables associated with managing
1890 * the TLAN lists to their initial values.
1891 *
1892 **************************************************************/
1893
1894static void tlan_reset_lists(struct net_device *dev)
1da177e4 1895{
c659c38b 1896 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1897 int i;
c659c38b 1898 struct tlan_list *list;
1da177e4
LT		 1899 dma_addr_t list_phys;
1900 struct sk_buff *skb;
1da177e4 1901
c659c38b
SA		 1902 priv->tx_head = 0;
1903 priv->tx_tail = 0;
1904 for (i = 0; i < TLAN_NUM_TX_LISTS; i++) {
1905 list = priv->tx_list + i;
1906 list->c_stat = TLAN_CSTAT_UNUSED;
5eeabf51 1907 list->buffer[0].address = 0;
1da177e4
LT		 1908 list->buffer[2].count = 0;
1909 list->buffer[2].address = 0;
1910 list->buffer[8].address = 0;
1911 list->buffer[9].address = 0;
1912 }
1913
c659c38b
SA		 1914 priv->rx_head = 0;
1915 priv->rx_tail = TLAN_NUM_RX_LISTS - 1;
1916 for (i = 0; i < TLAN_NUM_RX_LISTS; i++) {
1917 list = priv->rx_list + i;
1918 list_phys = priv->rx_list_dma + sizeof(struct tlan_list)*i;
1919 list->c_stat = TLAN_CSTAT_READY;
1920 list->frame_size = TLAN_MAX_FRAME_SIZE;
1da177e4 1921 list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER;
89d71a66 1922 skb = netdev_alloc_skb_ip_align(dev, TLAN_MAX_FRAME_SIZE + 5);
720a43ef 1923 if (!skb)
5eeabf51 1924 break;
5eeabf51 1925
c659c38b 1926 list->buffer[0].address = pci_map_single(priv->pci_dev,
5eeabf51
SA		 1927 skb->data,
1928 TLAN_MAX_FRAME_SIZE,
1929 PCI_DMA_FROMDEVICE);
c659c38b 1930 tlan_store_skb(list, skb);
1da177e4
LT		 1931 list->buffer[1].count = 0;
1932 list->buffer[1].address = 0;
c659c38b 1933 list->forward = list_phys + sizeof(struct tlan_list);
9ded65a1
SH		 1934 }
1935
1936 /* in case ran out of memory early, clear bits */
1937 while (i < TLAN_NUM_RX_LISTS) {
c659c38b 1938 tlan_store_skb(priv->rx_list + i, NULL);
9ded65a1 1939 ++i;
1da177e4 1940 }
9ded65a1 1941 list->forward = 0;
1da177e4 1942
c659c38b 1943}
1da177e4
LT		 1944
1945
c659c38b 1946static void tlan_free_lists(struct net_device *dev)
1da177e4 1947{
c659c38b 1948 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1949 int i;
c659c38b 1950 struct tlan_list *list;
1da177e4
LT		 1951 struct sk_buff *skb;
1952
c659c38b
SA		 1953 for (i = 0; i < TLAN_NUM_TX_LISTS; i++) {
1954 list = priv->tx_list + i;
1955 skb = tlan_get_skb(list);
1956 if (skb) {
5eeabf51 1957 pci_unmap_single(
c659c38b 1958 priv->pci_dev,
5eeabf51
SA		 1959 list->buffer[0].address,
1960 max(skb->len,
1961 (unsigned int)TLAN_MIN_FRAME_SIZE),
1962 PCI_DMA_TODEVICE);
c659c38b 1963 dev_kfree_skb_any(skb);
5eeabf51
SA		 1964 list->buffer[8].address = 0;
1965 list->buffer[9].address = 0;
1da177e4 1966 }
5eeabf51 1967 }
1da177e4 1968
c659c38b
SA		 1969 for (i = 0; i < TLAN_NUM_RX_LISTS; i++) {
1970 list = priv->rx_list + i;
1971 skb = tlan_get_skb(list);
1972 if (skb) {
1973 pci_unmap_single(priv->pci_dev,
5eeabf51
SA		 1974 list->buffer[0].address,
1975 TLAN_MAX_FRAME_SIZE,
1976 PCI_DMA_FROMDEVICE);
c659c38b 1977 dev_kfree_skb_any(skb);
5eeabf51
SA		 1978 list->buffer[8].address = 0;
1979 list->buffer[9].address = 0;
1da177e4
LT		 1980 }
1981 }
c659c38b 1982}
1da177e4
LT		 1983
1984
1985
1986
c659c38b
SA		 1987/***************************************************************
1988 * tlan_print_dio
1989 *
1990 * Returns:
1991 * Nothing
1992 * Parms:
1993 * io_base Base IO port of the device of
1994 * which to print DIO registers.
1995 *
1996 * This function prints out all the internal (DIO)
1997 * registers of a TLAN chip.
1998 *
1999 **************************************************************/
1da177e4 2000
c659c38b 2001static void tlan_print_dio(u16 io_base)
1da177e4
LT		 2002{
2003 u32 data0, data1;
2004 int i;
2005
50624aab
JP		 2006 pr_info("Contents of internal registers for io base 0x%04hx\n",
2007 io_base);
2008 pr_info("Off. +0 +4\n");
c659c38b
SA		 2009 for (i = 0; i < 0x4C; i += 8) {
2010 data0 = tlan_dio_read32(io_base, i);
2011 data1 = tlan_dio_read32(io_base, i + 0x4);
50624aab 2012 pr_info("0x%02x 0x%08x 0x%08x\n", i, data0, data1);
1da177e4
LT		 2013 }
2014
c659c38b 2015}
1da177e4
LT		 2016
2017
2018
2019
c659c38b
SA		 2020/***************************************************************
2021 * TLan_PrintList
2022 *
2023 * Returns:
2024 * Nothing
2025 * Parms:
2026 * list A pointer to the struct tlan_list structure to
2027 * be printed.
2028 * type A string to designate type of list,
2029 * "Rx" or "Tx".
2030 * num The index of the list.
2031 *
2032 * This function prints out the contents of the list
2033 * pointed to by the list parameter.
2034 *
2035 **************************************************************/
1da177e4 2036
c659c38b 2037static void tlan_print_list(struct tlan_list *list, char *type, int num)
1da177e4
LT		 2038{
2039 int i;
2040
50624aab
JP		 2041 pr_info("%s List %d at %p\n", type, num, list);
2042 pr_info(" Forward = 0x%08x\n", list->forward);
2043 pr_info(" CSTAT = 0x%04hx\n", list->c_stat);
2044 pr_info(" Frame Size = 0x%04hx\n", list->frame_size);
c659c38b
SA		 2045 /* for (i = 0; i < 10; i++) { */
2046 for (i = 0; i < 2; i++) {
50624aab
JP		 2047 pr_info(" Buffer[%d].count, addr = 0x%08x, 0x%08x\n",
2048 i, list->buffer[i].count, list->buffer[i].address);
1da177e4
LT		 2049 }
2050
c659c38b 2051}
1da177e4
LT		 2052
2053
2054
2055
c659c38b
SA		 2056/***************************************************************
2057 * tlan_read_and_clear_stats
2058 *
2059 * Returns:
2060 * Nothing
2061 * Parms:
2062 * dev Pointer to device structure of adapter
2063 * to which to read stats.
2064 * record Flag indicating whether to add
2065 *
2066 * This functions reads all the internal status registers
2067 * of the TLAN chip, which clears them as a side effect.
2068 * It then either adds the values to the device's status
2069 * struct, or discards them, depending on whether record
2070 * is TLAN_RECORD (!=0) or TLAN_IGNORE (==0).
2071 *
2072 **************************************************************/
1da177e4 2073
c659c38b 2074static void tlan_read_and_clear_stats(struct net_device *dev, int record)
1da177e4 2075{
1da177e4
LT		 2076 u32 tx_good, tx_under;
2077 u32 rx_good, rx_over;
2078 u32 def_tx, crc, code;
2079 u32 multi_col, single_col;
2080 u32 excess_col, late_col, loss;
2081
c659c38b
SA		 2082 outw(TLAN_GOOD_TX_FRMS, dev->base_addr + TLAN_DIO_ADR);
2083 tx_good = inb(dev->base_addr + TLAN_DIO_DATA);
2084 tx_good += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2085 tx_good += inb(dev->base_addr + TLAN_DIO_DATA + 2) << 16;
2086 tx_under = inb(dev->base_addr + TLAN_DIO_DATA + 3);
2087
2088 outw(TLAN_GOOD_RX_FRMS, dev->base_addr + TLAN_DIO_ADR);
2089 rx_good = inb(dev->base_addr + TLAN_DIO_DATA);
2090 rx_good += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2091 rx_good += inb(dev->base_addr + TLAN_DIO_DATA + 2) << 16;
2092 rx_over = inb(dev->base_addr + TLAN_DIO_DATA + 3);
2093
2094 outw(TLAN_DEFERRED_TX, dev->base_addr + TLAN_DIO_ADR);
2095 def_tx = inb(dev->base_addr + TLAN_DIO_DATA);
2096 def_tx += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2097 crc = inb(dev->base_addr + TLAN_DIO_DATA + 2);
2098 code = inb(dev->base_addr + TLAN_DIO_DATA + 3);
2099
2100 outw(TLAN_MULTICOL_FRMS, dev->base_addr + TLAN_DIO_ADR);
2101 multi_col = inb(dev->base_addr + TLAN_DIO_DATA);
2102 multi_col += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2103 single_col = inb(dev->base_addr + TLAN_DIO_DATA + 2);
2104 single_col += inb(dev->base_addr + TLAN_DIO_DATA + 3) << 8;
2105
2106 outw(TLAN_EXCESSCOL_FRMS, dev->base_addr + TLAN_DIO_ADR);
2107 excess_col = inb(dev->base_addr + TLAN_DIO_DATA);
2108 late_col = inb(dev->base_addr + TLAN_DIO_DATA + 1);
2109 loss = inb(dev->base_addr + TLAN_DIO_DATA + 2);
2110
2111 if (record) {
f8f31544
SH		 2112 dev->stats.rx_packets += rx_good;
2113 dev->stats.rx_errors += rx_over + crc + code;
2114 dev->stats.tx_packets += tx_good;
2115 dev->stats.tx_errors += tx_under + loss;
c659c38b
SA		 2116 dev->stats.collisions += multi_col
2117 + single_col + excess_col + late_col;
f8f31544
SH		 2118
2119 dev->stats.rx_over_errors += rx_over;
2120 dev->stats.rx_crc_errors += crc;
2121 dev->stats.rx_frame_errors += code;
2122
2123 dev->stats.tx_aborted_errors += tx_under;
2124 dev->stats.tx_carrier_errors += loss;
1da177e4 2125 }
6aa20a22 2126
c659c38b 2127}
1da177e4
LT		 2128
2129
2130
2131
c659c38b
SA		 2132/***************************************************************
2133 * TLan_Reset
2134 *
2135 * Returns:
2136 * 0
2137 * Parms:
2138 * dev Pointer to device structure of adapter
2139 * to be reset.
2140 *
2141 * This function resets the adapter and it's physical
2142 * device. See Chap. 3, pp. 9-10 of the "ThunderLAN
2143 * Programmer's Guide" for details. The routine tries to
2144 * implement what is detailed there, though adjustments
2145 * have been made.
2146 *
2147 **************************************************************/
1da177e4 2148
98e0f521 2149static void
c659c38b 2150tlan_reset_adapter(struct net_device *dev)
1da177e4 2151{
c659c38b 2152 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2153 int i;
2154 u32 addr;
2155 u32 data;
2156 u8 data8;
2157
c659c38b
SA		 2158 priv->tlan_full_duplex = false;
2159 priv->phy_online = 0;
1da177e4
LT		 2160 netif_carrier_off(dev);
2161
2162/* 1. Assert reset bit. */
2163
2164 data = inl(dev->base_addr + TLAN_HOST_CMD);
2165 data |= TLAN_HC_AD_RST;
2166 outl(data, dev->base_addr + TLAN_HOST_CMD);
6aa20a22 2167
1da177e4
LT		 2168 udelay(1000);
2169
c659c38b 2170/* 2. Turn off interrupts. (Probably isn't necessary) */
1da177e4
LT		 2171
2172 data = inl(dev->base_addr + TLAN_HOST_CMD);
2173 data |= TLAN_HC_INT_OFF;
2174 outl(data, dev->base_addr + TLAN_HOST_CMD);
2175
2176/* 3. Clear AREGs and HASHs. */
2177
c659c38b
SA		 2178 for (i = TLAN_AREG_0; i <= TLAN_HASH_2; i += 4)
2179 tlan_dio_write32(dev->base_addr, (u16) i, 0);
1da177e4
LT		 2180
2181/* 4. Setup NetConfig register. */
2182
2183 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
c659c38b 2184 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, (u16) data);
1da177e4
LT		 2185
2186/* 5. Load Ld_Tmr and Ld_Thr in HOST_CMD. */
2187
c659c38b
SA		 2188 outl(TLAN_HC_LD_TMR | 0x3f, dev->base_addr + TLAN_HOST_CMD);
2189 outl(TLAN_HC_LD_THR | 0x9, dev->base_addr + TLAN_HOST_CMD);
1da177e4
LT		 2190
2191/* 6. Unreset the MII by setting NMRST (in NetSio) to 1. */
2192
c659c38b 2193 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
1da177e4 2194 addr = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
c659c38b 2195 tlan_set_bit(TLAN_NET_SIO_NMRST, addr);
1da177e4
LT		 2196
2197/* 7. Setup the remaining registers. */
2198
c659c38b 2199 if (priv->tlan_rev >= 0x30) {
1da177e4 2200 data8 = TLAN_ID_TX_EOC | TLAN_ID_RX_EOC;
c659c38b 2201 tlan_dio_write8(dev->base_addr, TLAN_INT_DIS, data8);
1da177e4 2202 }
c659c38b 2203 tlan_phy_detect(dev);
1da177e4 2204 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN;
6aa20a22 2205
c659c38b 2206 if (priv->adapter->flags & TLAN_ADAPTER_BIT_RATE_PHY) {
1da177e4 2207 data |= TLAN_NET_CFG_BIT;
c659c38b
SA		 2208 if (priv->aui == 1) {
2209 tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x0a);
2210 } else if (priv->duplex == TLAN_DUPLEX_FULL) {
2211 tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x00);
2212 priv->tlan_full_duplex = true;
1da177e4 2213 } else {
c659c38b 2214 tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x08);
1da177e4
LT		 2215 }
2216 }
2217
7a72eddc
OZ		 2218 /* don't power down internal PHY if we're going to use it */
2219 if (priv->phy_num == 0 ||
2220 (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10))
1da177e4 2221 data |= TLAN_NET_CFG_PHY_EN;
c659c38b 2222 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, (u16) data);
1da177e4 2223
c659c38b
SA		 2224 if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY)
2225 tlan_finish_reset(dev);
2226 else
2227 tlan_phy_power_down(dev);
1da177e4 2228
c659c38b 2229}
1da177e4
LT		 2230
2231
2232
2233
98e0f521 2234static void
c659c38b 2235tlan_finish_reset(struct net_device *dev)
1da177e4 2236{
c659c38b 2237 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2238 u8 data;
2239 u32 phy;
2240 u8 sio;
2241 u16 status;
2242 u16 partner;
2243 u16 tlphy_ctl;
c659c38b 2244 u16 tlphy_par;
1da177e4 2245 u16 tlphy_id1, tlphy_id2;
c659c38b 2246 int i;
1da177e4 2247
c659c38b 2248 phy = priv->phy[priv->phy_num];
1da177e4
LT		 2249
2250 data = TLAN_NET_CMD_NRESET | TLAN_NET_CMD_NWRAP;
c659c38b 2251 if (priv->tlan_full_duplex)
1da177e4 2252 data |= TLAN_NET_CMD_DUPLEX;
c659c38b 2253 tlan_dio_write8(dev->base_addr, TLAN_NET_CMD, data);
6aa20a22 2254 data = TLAN_NET_MASK_MASK4 | TLAN_NET_MASK_MASK5;
c659c38b 2255 if (priv->phy_num == 0)
6aa20a22 2256 data |= TLAN_NET_MASK_MASK7;
c659c38b
SA		 2257 tlan_dio_write8(dev->base_addr, TLAN_NET_MASK, data);
2258 tlan_dio_write16(dev->base_addr, TLAN_MAX_RX, ((1536)+7)&~7);
2259 tlan_mii_read_reg(dev, phy, MII_GEN_ID_HI, &tlphy_id1);
2260 tlan_mii_read_reg(dev, phy, MII_GEN_ID_LO, &tlphy_id2);
6aa20a22 2261
c659c38b
SA		 2262 if ((priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) ||
2263 (priv->aui)) {
1da177e4 2264 status = MII_GS_LINK;
50624aab 2265 netdev_info(dev, "Link forced\n");
1da177e4 2266 } else {
c659c38b
SA		 2267 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2268 udelay(1000);
2269 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
c0a87c22
OZ		 2270 if (status & MII_GS_LINK) {
2271 /* We only support link info on Nat.Sem. PHY's */
2272 if ((tlphy_id1 == NAT_SEM_ID1) &&
2273 (tlphy_id2 == NAT_SEM_ID2)) {
2274 tlan_mii_read_reg(dev, phy, MII_AN_LPA,
2275 &partner);
2276 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_PAR,
2277 &tlphy_par);
2278
2279 netdev_info(dev,
2280 "Link active, %s %uMbps %s-Duplex\n",
2281 !(tlphy_par & TLAN_PHY_AN_EN_STAT)
2282 ? "forced" : "Autonegotiation enabled,",
2283 tlphy_par & TLAN_PHY_SPEED_100
2284 ? 100 : 10,
2285 tlphy_par & TLAN_PHY_DUPLEX_FULL
2286 ? "Full" : "Half");
2287
2288 if (tlphy_par & TLAN_PHY_AN_EN_STAT) {
2289 netdev_info(dev, "Partner capability:");
2290 for (i = 5; i < 10; i++)
2291 if (partner & (1 << i))
2292 pr_cont(" %s",
2293 media[i-5]);
2294 pr_cont("\n");
2295 }
2296 } else
2297 netdev_info(dev, "Link active\n");
2298 /* Enabling link beat monitoring */
c0a87c22
OZ		 2299 priv->media_timer.expires = jiffies + HZ;
2300 add_timer(&priv->media_timer);
1da177e4
LT		 2301 }
2302 }
2303
c659c38b
SA		 2304 if (priv->phy_num == 0) {
2305 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl);
2306 tlphy_ctl |= TLAN_TC_INTEN;
2307 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, tlphy_ctl);
2308 sio = tlan_dio_read8(dev->base_addr, TLAN_NET_SIO);
2309 sio |= TLAN_NET_SIO_MINTEN;
2310 tlan_dio_write8(dev->base_addr, TLAN_NET_SIO, sio);
2311 }
2312
2313 if (status & MII_GS_LINK) {
2314 tlan_set_mac(dev, 0, dev->dev_addr);
2315 priv->phy_online = 1;
2316 outb((TLAN_HC_INT_ON >> 8), dev->base_addr + TLAN_HOST_CMD + 1);
2317 if (debug >= 1 && debug != TLAN_DEBUG_PROBE)
2318 outb((TLAN_HC_REQ_INT >> 8),
2319 dev->base_addr + TLAN_HOST_CMD + 1);
2320 outl(priv->rx_list_dma, dev->base_addr + TLAN_CH_PARM);
2321 outl(TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD);
c0a87c22 2322 tlan_dio_write8(dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK);
1da177e4
LT		 2323 netif_carrier_on(dev);
2324 } else {
50624aab 2325 netdev_info(dev, "Link inactive, will retry in 10 secs...\n");
c659c38b 2326 tlan_set_timer(dev, (10*HZ), TLAN_TIMER_FINISH_RESET);
1da177e4
LT		 2327 return;
2328 }
c659c38b 2329 tlan_set_multicast_list(dev);
1da177e4 2330
c659c38b 2331}
1da177e4
LT		 2332
2333
2334
2335
c659c38b
SA		 2336/***************************************************************
2337 * tlan_set_mac
2338 *
2339 * Returns:
2340 * Nothing
2341 * Parms:
2342 * dev Pointer to device structure of adapter
2343 * on which to change the AREG.
2344 * areg The AREG to set the address in (0 - 3).
2345 * mac A pointer to an array of chars. Each
2346 * element stores one byte of the address.
2347 * IE, it isn't in ascii.
2348 *
2349 * This function transfers a MAC address to one of the
2350 * TLAN AREGs (address registers). The TLAN chip locks
2351 * the register on writing to offset 0 and unlocks the
2352 * register after writing to offset 5. If NULL is passed
2353 * in mac, then the AREG is filled with 0's.
2354 *
2355 **************************************************************/
1da177e4 2356
c659c38b 2357static void tlan_set_mac(struct net_device *dev, int areg, char *mac)
1da177e4
LT		 2358{
2359 int i;
6aa20a22 2360
1da177e4
LT		 2361 areg *= 6;
2362
c659c38b
SA		 2363 if (mac != NULL) {
2364 for (i = 0; i < 6; i++)
2365 tlan_dio_write8(dev->base_addr,
2366 TLAN_AREG_0 + areg + i, mac[i]);
1da177e4 2367 } else {
c659c38b
SA		 2368 for (i = 0; i < 6; i++)
2369 tlan_dio_write8(dev->base_addr,
2370 TLAN_AREG_0 + areg + i, 0);
1da177e4
LT		 2371 }
2372
c659c38b 2373}
1da177e4
LT		 2374
2375
2376
2377
2378/*****************************************************************************
2379******************************************************************************
2380
c659c38b 2381ThunderLAN driver PHY layer routines
1da177e4
LT		 2382
2383******************************************************************************
2384*****************************************************************************/
2385
2386
2387
c659c38b
SA		 2388/*********************************************************************
2389 * tlan_phy_print
2390 *
2391 * Returns:
2392 * Nothing
2393 * Parms:
2394 * dev A pointer to the device structure of the
2395 * TLAN device having the PHYs to be detailed.
2396 *
2397 * This function prints the registers a PHY (aka transceiver).
2398 *
2399 ********************************************************************/
1da177e4 2400
c659c38b 2401static void tlan_phy_print(struct net_device *dev)
1da177e4 2402{
c659c38b 2403 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2404 u16 i, data0, data1, data2, data3, phy;
2405
c659c38b
SA		 2406 phy = priv->phy[priv->phy_num];
2407
2408 if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) {
50624aab 2409 netdev_info(dev, "Unmanaged PHY\n");
c659c38b 2410 } else if (phy <= TLAN_PHY_MAX_ADDR) {
50624aab
JP		 2411 netdev_info(dev, "PHY 0x%02x\n", phy);
2412 pr_info(" Off. +0 +1 +2 +3\n");
c659c38b 2413 for (i = 0; i < 0x20; i += 4) {
c659c38b 2414 tlan_mii_read_reg(dev, phy, i, &data0);
c659c38b 2415 tlan_mii_read_reg(dev, phy, i + 1, &data1);
c659c38b 2416 tlan_mii_read_reg(dev, phy, i + 2, &data2);
c659c38b 2417 tlan_mii_read_reg(dev, phy, i + 3, &data3);
50624aab
JP		 2418 pr_info(" 0x%02x 0x%04hx 0x%04hx 0x%04hx 0x%04hx\n",
2419 i, data0, data1, data2, data3);
1da177e4
LT		 2420 }
2421 } else {
50624aab 2422 netdev_info(dev, "Invalid PHY\n");
1da177e4
LT		 2423 }
2424
c659c38b 2425}
1da177e4
LT		 2426
2427
2428
2429
c659c38b
SA		 2430/*********************************************************************
2431 * tlan_phy_detect
2432 *
2433 * Returns:
2434 * Nothing
2435 * Parms:
2436 * dev A pointer to the device structure of the adapter
2437 * for which the PHY needs determined.
2438 *
2439 * So far I've found that adapters which have external PHYs
2440 * may also use the internal PHY for part of the functionality.
2441 * (eg, AUI/Thinnet). This function finds out if this TLAN
2442 * chip has an internal PHY, and then finds the first external
2443 * PHY (starting from address 0) if it exists).
2444 *
2445 ********************************************************************/
1da177e4 2446
c659c38b 2447static void tlan_phy_detect(struct net_device *dev)
1da177e4 2448{
c659c38b 2449 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2450 u16 control;
2451 u16 hi;
2452 u16 lo;
2453 u32 phy;
2454
c659c38b
SA		 2455 if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) {
2456 priv->phy_num = 0xffff;
1da177e4
LT		 2457 return;
2458 }
2459
c659c38b 2460 tlan_mii_read_reg(dev, TLAN_PHY_MAX_ADDR, MII_GEN_ID_HI, &hi);
6aa20a22 2461
c659c38b 2462 if (hi != 0xffff)
1da177e4 2463 priv->phy[0] = TLAN_PHY_MAX_ADDR;
c659c38b 2464 else
1da177e4 2465 priv->phy[0] = TLAN_PHY_NONE;
1da177e4
LT		 2466
2467 priv->phy[1] = TLAN_PHY_NONE;
c659c38b
SA		 2468 for (phy = 0; phy <= TLAN_PHY_MAX_ADDR; phy++) {
2469 tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &control);
2470 tlan_mii_read_reg(dev, phy, MII_GEN_ID_HI, &hi);
2471 tlan_mii_read_reg(dev, phy, MII_GEN_ID_LO, &lo);
2472 if ((control != 0xffff) ||
2473 (hi != 0xffff) || (lo != 0xffff)) {
2474 TLAN_DBG(TLAN_DEBUG_GNRL,
2475 "PHY found at %02x %04x %04x %04x\n",
2476 phy, control, hi, lo);
2477 if ((priv->phy[1] == TLAN_PHY_NONE) &&
2478 (phy != TLAN_PHY_MAX_ADDR)) {
1da177e4
LT		 2479 priv->phy[1] = phy;
2480 }
2481 }
2482 }
2483
c659c38b
SA		 2484 if (priv->phy[1] != TLAN_PHY_NONE)
2485 priv->phy_num = 1;
2486 else if (priv->phy[0] != TLAN_PHY_NONE)
2487 priv->phy_num = 0;
2488 else
50624aab 2489 netdev_info(dev, "Cannot initialize device, no PHY was found!\n");
1da177e4 2490
c659c38b 2491}
1da177e4
LT		 2492
2493
2494
2495
c659c38b 2496static void tlan_phy_power_down(struct net_device *dev)
1da177e4 2497{
c659c38b 2498 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2499 u16 value;
2500
c659c38b 2501 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Powering down PHY(s).\n", dev->name);
1da177e4 2502 value = MII_GC_PDOWN | MII_GC_LOOPBK | MII_GC_ISOLATE;
c659c38b
SA		 2503 tlan_mii_sync(dev->base_addr);
2504 tlan_mii_write_reg(dev, priv->phy[priv->phy_num], MII_GEN_CTL, value);
9162e7e5
OZ		 2505 if ((priv->phy_num == 0) && (priv->phy[1] != TLAN_PHY_NONE)) {
2506 /* if using internal PHY, the external PHY must be powered on */
2507 if (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10)
2508 value = MII_GC_ISOLATE; /* just isolate it from MII */
c659c38b
SA		 2509 tlan_mii_sync(dev->base_addr);
2510 tlan_mii_write_reg(dev, priv->phy[1], MII_GEN_CTL, value);
1da177e4
LT		 2511 }
2512
2513 /* Wait for 50 ms and powerup
2514 * This is abitrary. It is intended to make sure the
2515 * transceiver settles.
2516 */
51fd9471 2517 tlan_set_timer(dev, msecs_to_jiffies(50), TLAN_TIMER_PHY_PUP);
1da177e4 2518
c659c38b 2519}
1da177e4
LT		 2520
2521
2522
2523
c659c38b 2524static void tlan_phy_power_up(struct net_device *dev)
1da177e4 2525{
c659c38b 2526 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2527 u16 value;
2528
c659c38b
SA		 2529 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Powering up PHY.\n", dev->name);
2530 tlan_mii_sync(dev->base_addr);
1da177e4 2531 value = MII_GC_LOOPBK;
c659c38b
SA		 2532 tlan_mii_write_reg(dev, priv->phy[priv->phy_num], MII_GEN_CTL, value);
2533 tlan_mii_sync(dev->base_addr);
1da177e4
LT		 2534 /* Wait for 500 ms and reset the
2535 * transceiver. The TLAN docs say both 50 ms and
2536 * 500 ms, so do the longer, just in case.
2537 */
b5057dd7 2538 tlan_set_timer(dev, msecs_to_jiffies(500), TLAN_TIMER_PHY_RESET);
1da177e4 2539
c659c38b 2540}
1da177e4
LT		 2541
2542
2543
2544
c659c38b 2545static void tlan_phy_reset(struct net_device *dev)
1da177e4 2546{
c659c38b 2547 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2548 u16 phy;
2549 u16 value;
9cff441e 2550 unsigned long timeout = jiffies + HZ;
1da177e4 2551
c659c38b 2552 phy = priv->phy[priv->phy_num];
1da177e4 2553
fd9071ec 2554 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Resetting PHY.\n", dev->name);
c659c38b 2555 tlan_mii_sync(dev->base_addr);
1da177e4 2556 value = MII_GC_LOOPBK | MII_GC_RESET;
c659c38b 2557 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, value);
9cff441e 2558 do {
c659c38b 2559 tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &value);
9cff441e
OZ		 2560 if (time_after(jiffies, timeout)) {
2561 netdev_err(dev, "PHY reset timeout\n");
2562 return;
2563 }
2564 } while (value & MII_GC_RESET);
1da177e4
LT		 2565
2566 /* Wait for 500 ms and initialize.
2567 * I don't remember why I wait this long.
2568 * I've changed this to 50ms, as it seems long enough.
2569 */
51fd9471 2570 tlan_set_timer(dev, msecs_to_jiffies(50), TLAN_TIMER_PHY_START_LINK);
1da177e4 2571
c659c38b 2572}
1da177e4
LT		 2573
2574
2575
2576
c659c38b 2577static void tlan_phy_start_link(struct net_device *dev)
1da177e4 2578{
c659c38b 2579 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2580 u16 ability;
2581 u16 control;
2582 u16 data;
2583 u16 phy;
2584 u16 status;
2585 u16 tctl;
2586
c659c38b
SA		 2587 phy = priv->phy[priv->phy_num];
2588 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Trying to activate link.\n", dev->name);
2589 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2590 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &ability);
1da177e4 2591
c659c38b
SA		 2592 if ((status & MII_GS_AUTONEG) &&
2593 (!priv->aui)) {
1da177e4 2594 ability = status >> 11;
c659c38b
SA		 2595 if (priv->speed == TLAN_SPEED_10 &&
2596 priv->duplex == TLAN_DUPLEX_HALF) {
2597 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x0000);
2598 } else if (priv->speed == TLAN_SPEED_10 &&
2599 priv->duplex == TLAN_DUPLEX_FULL) {
2600 priv->tlan_full_duplex = true;
2601 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x0100);
2602 } else if (priv->speed == TLAN_SPEED_100 &&
2603 priv->duplex == TLAN_DUPLEX_HALF) {
2604 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x2000);
2605 } else if (priv->speed == TLAN_SPEED_100 &&
2606 priv->duplex == TLAN_DUPLEX_FULL) {
2607 priv->tlan_full_duplex = true;
2608 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x2100);
1da177e4 2609 } else {
6aa20a22 2610
1da177e4 2611 /* Set Auto-Neg advertisement */
c659c38b
SA		 2612 tlan_mii_write_reg(dev, phy, MII_AN_ADV,
2613 (ability << 5) | 1);
1da177e4 2614 /* Enablee Auto-Neg */
c659c38b 2615 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x1000);
1da177e4 2616 /* Restart Auto-Neg */
c659c38b 2617 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x1200);
1da177e4 2618 /* Wait for 4 sec for autonegotiation
c659c38b
SA		 2619 * to complete. The max spec time is less than this
2620 * but the card need additional time to start AN.
2621 * .5 sec should be plenty extra.
2622 */
50624aab 2623 netdev_info(dev, "Starting autonegotiation\n");
c659c38b 2624 tlan_set_timer(dev, (2*HZ), TLAN_TIMER_PHY_FINISH_AN);
1da177e4
LT		 2625 return;
2626 }
6aa20a22
JG		 2627
2628 }
2629
c659c38b
SA		 2630 if ((priv->aui) && (priv->phy_num != 0)) {
2631 priv->phy_num = 0;
2632 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN
2633 | TLAN_NET_CFG_PHY_EN;
2634 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, data);
51fd9471 2635 tlan_set_timer(dev, msecs_to_jiffies(40), TLAN_TIMER_PHY_PDOWN);
1da177e4 2636 return;
c659c38b 2637 } else if (priv->phy_num == 0) {
1da177e4 2638 control = 0;
c659c38b
SA		 2639 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tctl);
2640 if (priv->aui) {
2641 tctl |= TLAN_TC_AUISEL;
6aa20a22 2642 } else {
c659c38b
SA		 2643 tctl &= ~TLAN_TC_AUISEL;
2644 if (priv->duplex == TLAN_DUPLEX_FULL) {
1da177e4 2645 control |= MII_GC_DUPLEX;
c659c38b 2646 priv->tlan_full_duplex = true;
1da177e4 2647 }
c659c38b 2648 if (priv->speed == TLAN_SPEED_100)
1da177e4 2649 control |= MII_GC_SPEEDSEL;
1da177e4 2650 }
c659c38b
SA		 2651 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, control);
2652 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, tctl);
1da177e4
LT		 2653 }
2654
2655 /* Wait for 2 sec to give the transceiver time
2656 * to establish link.
2657 */
c659c38b 2658 tlan_set_timer(dev, (4*HZ), TLAN_TIMER_FINISH_RESET);
1da177e4 2659
c659c38b 2660}
1da177e4
LT		 2661
2662
2663
2664
c659c38b 2665static void tlan_phy_finish_auto_neg(struct net_device *dev)
1da177e4 2666{
c659c38b 2667 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2668 u16 an_adv;
2669 u16 an_lpa;
1da177e4
LT		 2670 u16 mode;
2671 u16 phy;
2672 u16 status;
6aa20a22 2673
c659c38b 2674 phy = priv->phy[priv->phy_num];
1da177e4 2675
c659c38b
SA		 2676 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2677 udelay(1000);
2678 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
1da177e4 2679
c659c38b 2680 if (!(status & MII_GS_AUTOCMPLT)) {
1da177e4
LT		 2681 /* Wait for 8 sec to give the process
2682 * more time. Perhaps we should fail after a while.
2683 */
278e48b0 2684 tlan_set_timer(dev, 2 * HZ, TLAN_TIMER_PHY_FINISH_AN);
1da177e4
LT		 2685 return;
2686 }
2687
50624aab 2688 netdev_info(dev, "Autonegotiation complete\n");
c659c38b
SA		 2689 tlan_mii_read_reg(dev, phy, MII_AN_ADV, &an_adv);
2690 tlan_mii_read_reg(dev, phy, MII_AN_LPA, &an_lpa);
1da177e4 2691 mode = an_adv & an_lpa & 0x03E0;
c659c38b
SA		 2692 if (mode & 0x0100)
2693 priv->tlan_full_duplex = true;
2694 else if (!(mode & 0x0080) && (mode & 0x0040))
2695 priv->tlan_full_duplex = true;
2696
36bbe2f4 2697 /* switch to internal PHY for 10 Mbps */
c659c38b
SA		 2698 if ((!(mode & 0x0180)) &&
2699 (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10) &&
2700 (priv->phy_num != 0)) {
2701 priv->phy_num = 0;
51fd9471 2702 tlan_set_timer(dev, msecs_to_jiffies(400), TLAN_TIMER_PHY_PDOWN);
1da177e4
LT		 2703 return;
2704 }
2705
c659c38b
SA		 2706 if (priv->phy_num == 0) {
2707 if ((priv->duplex == TLAN_DUPLEX_FULL) ||
2708 (an_adv & an_lpa & 0x0040)) {
2709 tlan_mii_write_reg(dev, phy, MII_GEN_CTL,
2710 MII_GC_AUTOENB | MII_GC_DUPLEX);
50624aab 2711 netdev_info(dev, "Starting internal PHY with FULL-DUPLEX\n");
1da177e4 2712 } else {
c659c38b
SA		 2713 tlan_mii_write_reg(dev, phy, MII_GEN_CTL,
2714 MII_GC_AUTOENB);
50624aab 2715 netdev_info(dev, "Starting internal PHY with HALF-DUPLEX\n");
1da177e4
LT		 2716 }
2717 }
2718
2719 /* Wait for 100 ms. No reason in partiticular.
2720 */
51fd9471 2721 tlan_set_timer(dev, msecs_to_jiffies(100), TLAN_TIMER_FINISH_RESET);
6aa20a22 2722
c659c38b 2723}
1da177e4 2724
1da177e4 2725
c659c38b
SA		 2726/*********************************************************************
2727 *
2728 * tlan_phy_monitor
2729 *
2730 * Returns:
2731 * None
2732 *
2733 * Params:
c0a87c22 2734 * data The device structure of this device.
c659c38b
SA		 2735 *
2736 *
2737 * This function monitors PHY condition by reading the status
c0a87c22
OZ		 2738 * register via the MII bus, controls LINK LED and notifies the
2739 * kernel about link state.
c659c38b
SA		 2740 *
2741 *******************************************************************/
2742
0010e3f8 2743static void tlan_phy_monitor(struct timer_list *t)
1da177e4 2744{
0010e3f8
KC		 2745 struct tlan_priv *priv = from_timer(priv, t, media_timer);
2746 struct net_device *dev = 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)) {
c0a87c22 2757 if (netif_carrier_ok(dev)) {
c659c38b
SA		 2758 printk(KERN_DEBUG "TLAN: %s has lost link\n",
2759 dev->name);
c0a87c22 2760 tlan_dio_write8(dev->base_addr, TLAN_LED_REG, 0);
c659c38b 2761 netif_carrier_off(dev);
36bbe2f4
OZ		 2762 if (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10) {
2763 /* power down internal PHY */
2764 u16 data = MII_GC_PDOWN | MII_GC_LOOPBK |
2765 MII_GC_ISOLATE;
2766
2767 tlan_mii_sync(dev->base_addr);
2768 tlan_mii_write_reg(dev, priv->phy[0],
2769 MII_GEN_CTL, data);
2770 /* set to external PHY */
2771 priv->phy_num = 1;
2772 /* restart autonegotiation */
51fd9471 2773 tlan_set_timer(dev, msecs_to_jiffies(400),
36bbe2f4
OZ		 2774 TLAN_TIMER_PHY_PDOWN);
2775 return;
2776 }
1da177e4
LT		 2777 }
2778 }
2779
c659c38b 2780 /* Link restablished? */
c0a87c22
OZ		 2781 if ((phy_status & MII_GS_LINK) && !netif_carrier_ok(dev)) {
2782 tlan_dio_write8(dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK);
c659c38b
SA		 2783 printk(KERN_DEBUG "TLAN: %s has reestablished link\n",
2784 dev->name);
7d17c1d6 2785 netif_carrier_on(dev);
c659c38b 2786 }
c0a87c22
OZ		 2787 priv->media_timer.expires = jiffies + HZ;
2788 add_timer(&priv->media_timer);
6aa20a22 2789}
1da177e4 2790
1da177e4
LT		 2791
2792/*****************************************************************************
2793******************************************************************************
2794
c659c38b 2795ThunderLAN driver MII routines
1da177e4 2796
c659c38b
SA		 2797these routines are based on the information in chap. 2 of the
2798"ThunderLAN Programmer's Guide", pp. 15-24.
1da177e4
LT		 2799
2800******************************************************************************
2801*****************************************************************************/
2802
2803
c659c38b
SA		 2804/***************************************************************
2805 * tlan_mii_read_reg
2806 *
2807 * Returns:
2808 * false if ack received ok
2809 * true if no ack received or other error
2810 *
2811 * Parms:
2812 * dev The device structure containing
2813 * The io address and interrupt count
2814 * for this device.
2815 * phy The address of the PHY to be queried.
2816 * reg The register whose contents are to be
2817 * retrieved.
2818 * val A pointer to a variable to store the
2819 * retrieved value.
2820 *
2821 * This function uses the TLAN's MII bus to retrieve the contents
2822 * of a given register on a PHY. It sends the appropriate info
2823 * and then reads the 16-bit register value from the MII bus via
2824 * the TLAN SIO register.
2825 *
2826 **************************************************************/
2827
2828static bool
2829tlan_mii_read_reg(struct net_device *dev, u16 phy, u16 reg, u16 *val)
1da177e4
LT		 2830{
2831 u8 nack;
2832 u16 sio, tmp;
c659c38b 2833 u32 i;
37fce430 2834 bool err;
1da177e4 2835 int minten;
c659c38b 2836 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2837 unsigned long flags = 0;
2838
37fce430 2839 err = false;
1da177e4
LT		 2840 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
2841 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
6aa20a22 2842
1da177e4
LT		 2843 if (!in_irq())
2844 spin_lock_irqsave(&priv->lock, flags);
2845
c659c38b 2846 tlan_mii_sync(dev->base_addr);
1da177e4 2847
c659c38b
SA		 2848 minten = tlan_get_bit(TLAN_NET_SIO_MINTEN, sio);
2849 if (minten)
2850 tlan_clear_bit(TLAN_NET_SIO_MINTEN, sio);
1da177e4 2851
c659c38b
SA		 2852 tlan_mii_send_data(dev->base_addr, 0x1, 2); /* start (01b) */
2853 tlan_mii_send_data(dev->base_addr, 0x2, 2); /* read (10b) */
2854 tlan_mii_send_data(dev->base_addr, phy, 5); /* device # */
2855 tlan_mii_send_data(dev->base_addr, reg, 5); /* register # */
1da177e4
LT		 2856
2857
c659c38b 2858 tlan_clear_bit(TLAN_NET_SIO_MTXEN, sio); /* change direction */
1da177e4 2859
c659c38b
SA		 2860 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* clock idle bit */
2861 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
2862 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* wait 300ns */
1da177e4 2863
c659c38b
SA		 2864 nack = tlan_get_bit(TLAN_NET_SIO_MDATA, sio); /* check for ACK */
2865 tlan_set_bit(TLAN_NET_SIO_MCLK, sio); /* finish ACK */
2866 if (nack) { /* no ACK, so fake it */
1da177e4 2867 for (i = 0; i < 16; i++) {
c659c38b
SA		 2868 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2869 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2870 }
2871 tmp = 0xffff;
37fce430 2872 err = true;
1da177e4
LT		 2873 } else { /* ACK, so read data */
2874 for (tmp = 0, i = 0x8000; i; i >>= 1) {
c659c38b
SA		 2875 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2876 if (tlan_get_bit(TLAN_NET_SIO_MDATA, sio))
1da177e4 2877 tmp |= i;
c659c38b 2878 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2879 }
2880 }
2881
2882
c659c38b
SA		 2883 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* idle cycle */
2884 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4 2885
c659c38b
SA		 2886 if (minten)
2887 tlan_set_bit(TLAN_NET_SIO_MINTEN, sio);
1da177e4
LT		 2888
2889 *val = tmp;
6aa20a22 2890
1da177e4
LT		 2891 if (!in_irq())
2892 spin_unlock_irqrestore(&priv->lock, flags);
2893
2894 return err;
2895
c659c38b 2896}
1da177e4
LT		 2897
2898
2899
2900
c659c38b
SA		 2901/***************************************************************
2902 * tlan_mii_send_data
2903 *
2904 * Returns:
2905 * Nothing
2906 * Parms:
2907 * base_port The base IO port of the adapter in
2908 * question.
2909 * dev The address of the PHY to be queried.
2910 * data The value to be placed on the MII bus.
2911 * num_bits The number of bits in data that are to
2912 * be placed on the MII bus.
2913 *
2914 * This function sends on sequence of bits on the MII
2915 * configuration bus.
2916 *
2917 **************************************************************/
1da177e4 2918
c659c38b 2919static void tlan_mii_send_data(u16 base_port, u32 data, unsigned num_bits)
1da177e4
LT		 2920{
2921 u16 sio;
2922 u32 i;
2923
c659c38b 2924 if (num_bits == 0)
1da177e4
LT		 2925 return;
2926
c659c38b 2927 outw(TLAN_NET_SIO, base_port + TLAN_DIO_ADR);
1da177e4 2928 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
c659c38b 2929 tlan_set_bit(TLAN_NET_SIO_MTXEN, sio);
1da177e4 2930
c659c38b
SA		 2931 for (i = (0x1 << (num_bits - 1)); i; i >>= 1) {
2932 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2933 (void) tlan_get_bit(TLAN_NET_SIO_MCLK, sio);
2934 if (data & i)
2935 tlan_set_bit(TLAN_NET_SIO_MDATA, sio);
1da177e4 2936 else
c659c38b
SA		 2937 tlan_clear_bit(TLAN_NET_SIO_MDATA, sio);
2938 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
2939 (void) tlan_get_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2940 }
2941
c659c38b 2942}
1da177e4
LT		 2943
2944
2945
2946
c659c38b
SA		 2947/***************************************************************
2948 * TLan_MiiSync
2949 *
2950 * Returns:
2951 * Nothing
2952 * Parms:
2953 * base_port The base IO port of the adapter in
2954 * question.
2955 *
2956 * This functions syncs all PHYs in terms of the MII configuration
2957 * bus.
2958 *
2959 **************************************************************/
1da177e4 2960
c659c38b 2961static void tlan_mii_sync(u16 base_port)
1da177e4
LT		 2962{
2963 int i;
2964 u16 sio;
2965
c659c38b 2966 outw(TLAN_NET_SIO, base_port + TLAN_DIO_ADR);
1da177e4
LT		 2967 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
2968
c659c38b
SA		 2969 tlan_clear_bit(TLAN_NET_SIO_MTXEN, sio);
2970 for (i = 0; i < 32; i++) {
2971 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2972 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2973 }
2974
c659c38b 2975}
1da177e4
LT		 2976
2977
2978
2979
c659c38b
SA		 2980/***************************************************************
2981 * tlan_mii_write_reg
2982 *
2983 * Returns:
2984 * Nothing
2985 * Parms:
2986 * dev The device structure for the device
2987 * to write to.
2988 * phy The address of the PHY to be written to.
2989 * reg The register whose contents are to be
2990 * written.
2991 * val The value to be written to the register.
2992 *
2993 * This function uses the TLAN's MII bus to write the contents of a
2994 * given register on a PHY. It sends the appropriate info and then
2995 * writes the 16-bit register value from the MII configuration bus
2996 * via the TLAN SIO register.
2997 *
2998 **************************************************************/
1da177e4 2999
c659c38b
SA		 3000static void
3001tlan_mii_write_reg(struct net_device *dev, u16 phy, u16 reg, u16 val)
1da177e4
LT		 3002{
3003 u16 sio;
3004 int minten;
3005 unsigned long flags = 0;
c659c38b 3006 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 3007
3008 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
3009 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
6aa20a22 3010
1da177e4
LT		 3011 if (!in_irq())
3012 spin_lock_irqsave(&priv->lock, flags);
3013
c659c38b 3014 tlan_mii_sync(dev->base_addr);
1da177e4 3015
c659c38b
SA		 3016 minten = tlan_get_bit(TLAN_NET_SIO_MINTEN, sio);
3017 if (minten)
3018 tlan_clear_bit(TLAN_NET_SIO_MINTEN, sio);
1da177e4 3019
c659c38b
SA		 3020 tlan_mii_send_data(dev->base_addr, 0x1, 2); /* start (01b) */
3021 tlan_mii_send_data(dev->base_addr, 0x1, 2); /* write (01b) */
3022 tlan_mii_send_data(dev->base_addr, phy, 5); /* device # */
3023 tlan_mii_send_data(dev->base_addr, reg, 5); /* register # */
1da177e4 3024
c659c38b
SA		 3025 tlan_mii_send_data(dev->base_addr, 0x2, 2); /* send ACK */
3026 tlan_mii_send_data(dev->base_addr, val, 16); /* send data */
1da177e4 3027
c659c38b
SA		 3028 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* idle cycle */
3029 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4 3030
c659c38b
SA		 3031 if (minten)
3032 tlan_set_bit(TLAN_NET_SIO_MINTEN, sio);
6aa20a22 3033
1da177e4
LT		 3034 if (!in_irq())
3035 spin_unlock_irqrestore(&priv->lock, flags);
3036
c659c38b 3037}
1da177e4
LT		 3038
3039
3040
3041
3042/*****************************************************************************
3043******************************************************************************
3044
c659c38b 3045ThunderLAN driver eeprom routines
1da177e4 3046
c659c38b
SA		 3047the Compaq netelligent 10 and 10/100 cards use a microchip 24C02A
3048EEPROM. these functions are based on information in microchip's
3049data sheet. I don't know how well this functions will work with
3050other Eeproms.
1da177e4
LT		 3051
3052******************************************************************************
3053*****************************************************************************/
3054
3055
c659c38b
SA		 3056/***************************************************************
3057 * tlan_ee_send_start
3058 *
3059 * Returns:
3060 * Nothing
3061 * Parms:
3062 * io_base The IO port base address for the
3063 * TLAN device with the EEPROM to
3064 * use.
3065 *
3066 * This function sends a start cycle to an EEPROM attached
3067 * to a TLAN chip.
3068 *
3069 **************************************************************/
3070
3071static void tlan_ee_send_start(u16 io_base)
1da177e4
LT		 3072{
3073 u16 sio;
3074
c659c38b 3075 outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
1da177e4
LT		 3076 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3077
c659c38b
SA		 3078 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3079 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
3080 tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
3081 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3082 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
3083
3084}
3085
3086
3087
3088
3089/***************************************************************
3090 * tlan_ee_send_byte
3091 *
3092 * Returns:
3093 * If the correct ack was received, 0, otherwise 1
3094 * Parms: io_base The IO port base address for the
3095 * TLAN device with the EEPROM to
3096 * use.
3097 * data The 8 bits of information to
3098 * send to the EEPROM.
3099 * stop If TLAN_EEPROM_STOP is passed, a
3100 * stop cycle is sent after the
3101 * byte is sent after the ack is
3102 * read.
3103 *
3104 * This function sends a byte on the serial EEPROM line,
3105 * driving the clock to send each bit. The function then
3106 * reverses transmission direction and reads an acknowledge
3107 * bit.
3108 *
3109 **************************************************************/
3110
3111static int tlan_ee_send_byte(u16 io_base, u8 data, int stop)
1da177e4
LT		 3112{
3113 int err;
3114 u8 place;
3115 u16 sio;
3116
c659c38b 3117 outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
1da177e4
LT		 3118 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3119
3120 /* Assume clock is low, tx is enabled; */
c659c38b
SA		 3121 for (place = 0x80; place != 0; place >>= 1) {
3122 if (place & data)
3123 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
1da177e4 3124 else
c659c38b
SA		 3125 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3126 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3127 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
1da177e4 3128 }
c659c38b
SA		 3129 tlan_clear_bit(TLAN_NET_SIO_ETXEN, sio);
3130 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3131 err = tlan_get_bit(TLAN_NET_SIO_EDATA, sio);
3132 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
3133 tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
1da177e4 3134
c659c38b 3135 if ((!err) && stop) {
dfc2c0a6 3136 /* STOP, raise data while clock is high */
c659c38b
SA		 3137 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3138 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3139 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
1da177e4
LT		 3140 }
3141
807540ba 3142 return err;
1da177e4 3143
c659c38b
SA		 3144}
3145
3146
3147
3148
3149/***************************************************************
3150 * tlan_ee_receive_byte
3151 *
3152 * Returns:
3153 * Nothing
3154 * Parms:
3155 * io_base The IO port base address for the
3156 * TLAN device with the EEPROM to
3157 * use.
3158 * data An address to a char to hold the
3159 * data sent from the EEPROM.
3160 * stop If TLAN_EEPROM_STOP is passed, a
3161 * stop cycle is sent after the
3162 * byte is received, and no ack is
3163 * sent.
3164 *
3165 * This function receives 8 bits of data from the EEPROM
3166 * over the serial link. It then sends and ack bit, or no
3167 * ack and a stop bit. This function is used to retrieve
3168 * data after the address of a byte in the EEPROM has been
3169 * sent.
3170 *
3171 **************************************************************/
3172
3173static void tlan_ee_receive_byte(u16 io_base, u8 *data, int stop)
1da177e4
LT		 3174{
3175 u8 place;
3176 u16 sio;
3177
c659c38b 3178 outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
1da177e4
LT		 3179 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3180 *data = 0;
3181
3182 /* Assume clock is low, tx is enabled; */
c659c38b
SA		 3183 tlan_clear_bit(TLAN_NET_SIO_ETXEN, sio);
3184 for (place = 0x80; place; place >>= 1) {
3185 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3186 if (tlan_get_bit(TLAN_NET_SIO_EDATA, sio))
1da177e4 3187 *data |= place;
c659c38b 3188 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
1da177e4
LT		 3189 }
3190
c659c38b
SA		 3191 tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
3192 if (!stop) {
3193 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio); /* ack = 0 */
3194 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3195 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
1da177e4 3196 } else {
c659c38b
SA		 3197 tlan_set_bit(TLAN_NET_SIO_EDATA, sio); /* no ack = 1 (?) */
3198 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3199 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
dfc2c0a6 3200 /* STOP, raise data while clock is high */
c659c38b
SA		 3201 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3202 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3203 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
3204 }
3205
3206}
3207
3208
3209
3210
3211/***************************************************************
3212 * tlan_ee_read_byte
3213 *
3214 * Returns:
3215 * No error = 0, else, the stage at which the error
3216 * occurred.
3217 * Parms:
3218 * io_base The IO port base address for the
3219 * TLAN device with the EEPROM to
3220 * use.
3221 * ee_addr The address of the byte in the
3222 * EEPROM whose contents are to be
3223 * retrieved.
3224 * data An address to a char to hold the
3225 * data obtained from the EEPROM.
3226 *
3227 * This function reads a byte of information from an byte
3228 * cell in the EEPROM.
3229 *
3230 **************************************************************/
3231
3232static int tlan_ee_read_byte(struct net_device *dev, u8 ee_addr, u8 *data)
1da177e4
LT		 3233{
3234 int err;
c659c38b 3235 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 3236 unsigned long flags = 0;
c659c38b 3237 int ret = 0;
1da177e4
LT		 3238
3239 spin_lock_irqsave(&priv->lock, flags);
3240
c659c38b
SA		 3241 tlan_ee_send_start(dev->base_addr);
3242 err = tlan_ee_send_byte(dev->base_addr, 0xa0, TLAN_EEPROM_ACK);
3243 if (err) {
3244 ret = 1;
1da177e4
LT		 3245 goto fail;
3246 }
c659c38b
SA		 3247 err = tlan_ee_send_byte(dev->base_addr, ee_addr, TLAN_EEPROM_ACK);
3248 if (err) {
3249 ret = 2;
1da177e4
LT		 3250 goto fail;
3251 }
c659c38b
SA		 3252 tlan_ee_send_start(dev->base_addr);
3253 err = tlan_ee_send_byte(dev->base_addr, 0xa1, TLAN_EEPROM_ACK);
3254 if (err) {
3255 ret = 3;
1da177e4
LT		 3256 goto fail;
3257 }
c659c38b 3258 tlan_ee_receive_byte(dev->base_addr, data, TLAN_EEPROM_STOP);
1da177e4
LT		 3259fail:
3260 spin_unlock_irqrestore(&priv->lock, flags);
3261
3262 return ret;
3263
c659c38b 3264}
1da177e4
LT		 3265
3266
3267
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