Commit | Line | Data |
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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 | 51 | static struct net_device *tlan_eisa_devices; |
1da177e4 | 52 | |
c659c38b | 53 | static int tlan_devices_installed; |
1da177e4 LT |
54 | |
55 | /* Set speed, duplex and aui settings */ | |
56 | static int aui[MAX_TLAN_BOARDS]; | |
57 | static int duplex[MAX_TLAN_BOARDS]; | |
58 | static int speed[MAX_TLAN_BOARDS]; | |
59 | static int boards_found; | |
15efa9bb SH |
60 | module_param_array(aui, int, NULL, 0); |
61 | module_param_array(duplex, int, NULL, 0); | |
62 | module_param_array(speed, int, NULL, 0); | |
63 | MODULE_PARM_DESC(aui, "ThunderLAN use AUI port(s) (0-1)"); | |
c659c38b SA |
64 | MODULE_PARM_DESC(duplex, |
65 | "ThunderLAN duplex setting(s) (0-default, 1-half, 2-full)"); | |
50624aab | 66 | MODULE_PARM_DESC(speed, "ThunderLAN port speed setting(s) (0,10,100)"); |
1da177e4 LT |
67 | |
68 | MODULE_AUTHOR("Maintainer: Samuel Chessman <chessman@tux.org>"); | |
69 | MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters"); | |
70 | MODULE_LICENSE("GPL"); | |
71 | ||
1da177e4 LT |
72 | /* Turn on debugging. See Documentation/networking/tlan.txt for details */ |
73 | static int debug; | |
15efa9bb SH |
74 | module_param(debug, int, 0); |
75 | MODULE_PARM_DESC(debug, "ThunderLAN debug mask"); | |
1da177e4 | 76 | |
c659c38b | 77 | static const char tlan_signature[] = "TLAN"; |
fa6d5d4f | 78 | static const char tlan_banner[] = "ThunderLAN driver v1.17\n"; |
1da177e4 LT |
79 | static int tlan_have_pci; |
80 | static int tlan_have_eisa; | |
81 | ||
c659c38b SA |
82 | static const char * const media[] = { |
83 | "10BaseT-HD", "10BaseT-FD", "100baseTx-HD", | |
84 | "100BaseTx-FD", "100BaseT4", NULL | |
1da177e4 LT |
85 | }; |
86 | ||
87 | static struct board { | |
c659c38b SA |
88 | const char *device_label; |
89 | u32 flags; | |
90 | u16 addr_ofs; | |
1da177e4 LT |
91 | } board_info[] = { |
92 | { "Compaq Netelligent 10 T PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, | |
c659c38b SA |
93 | { "Compaq Netelligent 10/100 TX PCI UTP", |
94 | TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, | |
1da177e4 | 95 | { "Compaq Integrated NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 }, |
dfc2c0a6 SH |
96 | { "Compaq NetFlex-3/P", |
97 | TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 }, | |
1da177e4 | 98 | { "Compaq NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 }, |
dfc2c0a6 SH |
99 | { "Compaq Netelligent Integrated 10/100 TX UTP", |
100 | TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, | |
c659c38b SA |
101 | { "Compaq Netelligent Dual 10/100 TX PCI UTP", |
102 | TLAN_ADAPTER_NONE, 0x83 }, | |
103 | { "Compaq Netelligent 10/100 TX Embedded UTP", | |
104 | TLAN_ADAPTER_NONE, 0x83 }, | |
1da177e4 | 105 | { "Olicom OC-2183/2185", TLAN_ADAPTER_USE_INTERN_10, 0x83 }, |
eb522bb4 OZ |
106 | { "Olicom OC-2325", TLAN_ADAPTER_ACTIVITY_LED | |
107 | TLAN_ADAPTER_UNMANAGED_PHY, 0xf8 }, | |
108 | { "Olicom OC-2326", TLAN_ADAPTER_ACTIVITY_LED | | |
109 | TLAN_ADAPTER_USE_INTERN_10, 0xf8 }, | |
1da177e4 | 110 | { "Compaq Netelligent 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, |
c659c38b | 111 | { "Compaq Netelligent 10 T/2 PCI UTP/coax", TLAN_ADAPTER_NONE, 0x83 }, |
dfc2c0a6 | 112 | { "Compaq NetFlex-3/E", |
c659c38b | 113 | TLAN_ADAPTER_ACTIVITY_LED | /* EISA card */ |
dfc2c0a6 | 114 | TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 }, |
c659c38b SA |
115 | { "Compaq NetFlex-3/E", |
116 | TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, /* EISA card */ | |
1da177e4 LT |
117 | }; |
118 | ||
9baa3c34 | 119 | static const struct pci_device_id tlan_pci_tbl[] = { |
1da177e4 | 120 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL10, |
c659c38b | 121 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, |
1da177e4 | 122 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100, |
c659c38b | 123 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 }, |
1da177e4 | 124 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3I, |
c659c38b | 125 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 }, |
1da177e4 | 126 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_THUNDER, |
c659c38b | 127 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 }, |
1da177e4 | 128 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3B, |
c659c38b | 129 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 }, |
1da177e4 | 130 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100PI, |
c659c38b | 131 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 }, |
1da177e4 | 132 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100D, |
c659c38b | 133 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6 }, |
1da177e4 | 134 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100I, |
c659c38b | 135 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 }, |
1da177e4 | 136 | { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2183, |
c659c38b | 137 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 }, |
1da177e4 | 138 | { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2325, |
c659c38b | 139 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 }, |
1da177e4 | 140 | { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2326, |
c659c38b | 141 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 }, |
1da177e4 | 142 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100, |
c659c38b | 143 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 }, |
1da177e4 | 144 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_T2, |
c659c38b | 145 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 }, |
1da177e4 LT |
146 | { 0,} |
147 | }; | |
6aa20a22 | 148 | MODULE_DEVICE_TABLE(pci, tlan_pci_tbl); |
1da177e4 | 149 | |
c659c38b SA |
150 | static void tlan_eisa_probe(void); |
151 | static void tlan_eisa_cleanup(void); | |
152 | static int tlan_init(struct net_device *); | |
153 | static int tlan_open(struct net_device *dev); | |
154 | static netdev_tx_t tlan_start_tx(struct sk_buff *, struct net_device *); | |
155 | static irqreturn_t tlan_handle_interrupt(int, void *); | |
156 | static int tlan_close(struct net_device *); | |
157 | static struct net_device_stats *tlan_get_stats(struct net_device *); | |
158 | static void tlan_set_multicast_list(struct net_device *); | |
159 | static int tlan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); | |
160 | static int tlan_probe1(struct pci_dev *pdev, long ioaddr, | |
161 | int irq, int rev, const struct pci_device_id *ent); | |
162 | static void tlan_tx_timeout(struct net_device *dev); | |
163 | static void tlan_tx_timeout_work(struct work_struct *work); | |
164 | static int tlan_init_one(struct pci_dev *pdev, | |
165 | const struct pci_device_id *ent); | |
166 | ||
167 | static u32 tlan_handle_tx_eof(struct net_device *, u16); | |
168 | static u32 tlan_handle_stat_overflow(struct net_device *, u16); | |
169 | static u32 tlan_handle_rx_eof(struct net_device *, u16); | |
170 | static u32 tlan_handle_dummy(struct net_device *, u16); | |
171 | static u32 tlan_handle_tx_eoc(struct net_device *, u16); | |
172 | static u32 tlan_handle_status_check(struct net_device *, u16); | |
173 | static u32 tlan_handle_rx_eoc(struct net_device *, u16); | |
174 | ||
175 | static void tlan_timer(unsigned long); | |
176 | ||
177 | static void tlan_reset_lists(struct net_device *); | |
178 | static void tlan_free_lists(struct net_device *); | |
179 | static void tlan_print_dio(u16); | |
180 | static void tlan_print_list(struct tlan_list *, char *, int); | |
181 | static void tlan_read_and_clear_stats(struct net_device *, int); | |
182 | static void tlan_reset_adapter(struct net_device *); | |
183 | static void tlan_finish_reset(struct net_device *); | |
184 | static void tlan_set_mac(struct net_device *, int areg, char *mac); | |
185 | ||
186 | static void tlan_phy_print(struct net_device *); | |
187 | static void tlan_phy_detect(struct net_device *); | |
188 | static void tlan_phy_power_down(struct net_device *); | |
189 | static void tlan_phy_power_up(struct net_device *); | |
190 | static void tlan_phy_reset(struct net_device *); | |
191 | static void tlan_phy_start_link(struct net_device *); | |
192 | static void tlan_phy_finish_auto_neg(struct net_device *); | |
c0a87c22 | 193 | static void tlan_phy_monitor(unsigned long); |
1da177e4 LT |
194 | |
195 | /* | |
c659c38b SA |
196 | static int tlan_phy_nop(struct net_device *); |
197 | static int tlan_phy_internal_check(struct net_device *); | |
198 | static int tlan_phy_internal_service(struct net_device *); | |
199 | static int tlan_phy_dp83840a_check(struct net_device *); | |
1da177e4 LT |
200 | */ |
201 | ||
c659c38b SA |
202 | static bool tlan_mii_read_reg(struct net_device *, u16, u16, u16 *); |
203 | static void tlan_mii_send_data(u16, u32, unsigned); | |
204 | static void tlan_mii_sync(u16); | |
205 | static void tlan_mii_write_reg(struct net_device *, u16, u16, u16); | |
1da177e4 | 206 | |
c659c38b SA |
207 | static void tlan_ee_send_start(u16); |
208 | static int tlan_ee_send_byte(u16, u8, int); | |
209 | static void tlan_ee_receive_byte(u16, u8 *, int); | |
210 | static int tlan_ee_read_byte(struct net_device *, u8, u8 *); | |
1da177e4 LT |
211 | |
212 | ||
93e16847 | 213 | static inline void |
c659c38b | 214 | tlan_store_skb(struct tlan_list *tag, struct sk_buff *skb) |
1da177e4 LT |
215 | { |
216 | unsigned long addr = (unsigned long)skb; | |
93e16847 SH |
217 | tag->buffer[9].address = addr; |
218 | tag->buffer[8].address = upper_32_bits(addr); | |
1da177e4 LT |
219 | } |
220 | ||
93e16847 | 221 | static inline struct sk_buff * |
c659c38b | 222 | tlan_get_skb(const struct tlan_list *tag) |
1da177e4 | 223 | { |
93e16847 SH |
224 | unsigned long addr; |
225 | ||
0d63bea2 | 226 | addr = tag->buffer[9].address; |
da3a9e9e | 227 | addr |= ((unsigned long) tag->buffer[8].address << 16) << 16; |
1da177e4 LT |
228 | return (struct sk_buff *) addr; |
229 | } | |
230 | ||
c659c38b SA |
231 | static u32 |
232 | (*tlan_int_vector[TLAN_INT_NUMBER_OF_INTS])(struct net_device *, u16) = { | |
a3ccc789 | 233 | NULL, |
c659c38b SA |
234 | tlan_handle_tx_eof, |
235 | tlan_handle_stat_overflow, | |
236 | tlan_handle_rx_eof, | |
237 | tlan_handle_dummy, | |
238 | tlan_handle_tx_eoc, | |
239 | tlan_handle_status_check, | |
240 | tlan_handle_rx_eoc | |
1da177e4 LT |
241 | }; |
242 | ||
243 | static inline void | |
c659c38b | 244 | tlan_set_timer(struct net_device *dev, u32 ticks, u32 type) |
1da177e4 | 245 | { |
c659c38b | 246 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 | 247 | unsigned long flags = 0; |
6aa20a22 | 248 | |
1da177e4 LT |
249 | if (!in_irq()) |
250 | spin_lock_irqsave(&priv->lock, flags); | |
c659c38b SA |
251 | if (priv->timer.function != NULL && |
252 | priv->timer_type != TLAN_TIMER_ACTIVITY) { | |
1da177e4 LT |
253 | if (!in_irq()) |
254 | spin_unlock_irqrestore(&priv->lock, flags); | |
255 | return; | |
256 | } | |
c659c38b | 257 | priv->timer.function = tlan_timer; |
1da177e4 LT |
258 | if (!in_irq()) |
259 | spin_unlock_irqrestore(&priv->lock, flags); | |
260 | ||
261 | priv->timer.data = (unsigned long) dev; | |
c659c38b SA |
262 | priv->timer_set_at = jiffies; |
263 | priv->timer_type = type; | |
1da177e4 | 264 | mod_timer(&priv->timer, jiffies + ticks); |
6aa20a22 | 265 | |
c659c38b | 266 | } |
1da177e4 LT |
267 | |
268 | ||
269 | /***************************************************************************** | |
270 | ****************************************************************************** | |
271 | ||
c659c38b | 272 | ThunderLAN driver primary functions |
1da177e4 | 273 | |
c659c38b | 274 | these functions are more or less common to all linux network drivers. |
1da177e4 LT |
275 | |
276 | ****************************************************************************** | |
277 | *****************************************************************************/ | |
278 | ||
279 | ||
280 | ||
281 | ||
282 | ||
c659c38b SA |
283 | /*************************************************************** |
284 | * tlan_remove_one | |
285 | * | |
286 | * Returns: | |
287 | * Nothing | |
288 | * Parms: | |
289 | * None | |
290 | * | |
291 | * Goes through the TLanDevices list and frees the device | |
292 | * structs and memory associated with each device (lists | |
293 | * and buffers). It also ureserves the IO port regions | |
294 | * associated with this device. | |
295 | * | |
296 | **************************************************************/ | |
1da177e4 LT |
297 | |
298 | ||
36915876 | 299 | static void tlan_remove_one(struct pci_dev *pdev) |
1da177e4 | 300 | { |
c659c38b SA |
301 | struct net_device *dev = pci_get_drvdata(pdev); |
302 | struct tlan_priv *priv = netdev_priv(dev); | |
6aa20a22 | 303 | |
c659c38b | 304 | unregister_netdev(dev); |
1da177e4 | 305 | |
c659c38b SA |
306 | if (priv->dma_storage) { |
307 | pci_free_consistent(priv->pci_dev, | |
308 | priv->dma_size, priv->dma_storage, | |
309 | priv->dma_storage_dma); | |
1da177e4 LT |
310 | } |
311 | ||
312 | #ifdef CONFIG_PCI | |
313 | pci_release_regions(pdev); | |
314 | #endif | |
6aa20a22 | 315 | |
c659c38b | 316 | free_netdev(dev); |
6aa20a22 | 317 | |
1e0a8b13 | 318 | cancel_work_sync(&priv->tlan_tqueue); |
6aa20a22 | 319 | } |
1da177e4 | 320 | |
fa6d5d4f SA |
321 | static void tlan_start(struct net_device *dev) |
322 | { | |
323 | tlan_reset_lists(dev); | |
324 | /* NOTE: It might not be necessary to read the stats before a | |
325 | reset if you don't care what the values are. | |
326 | */ | |
327 | tlan_read_and_clear_stats(dev, TLAN_IGNORE); | |
328 | tlan_reset_adapter(dev); | |
329 | netif_wake_queue(dev); | |
330 | } | |
331 | ||
332 | static void tlan_stop(struct net_device *dev) | |
333 | { | |
334 | struct tlan_priv *priv = netdev_priv(dev); | |
335 | ||
c0a87c22 | 336 | del_timer_sync(&priv->media_timer); |
fa6d5d4f SA |
337 | tlan_read_and_clear_stats(dev, TLAN_RECORD); |
338 | outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD); | |
339 | /* Reset and power down phy */ | |
340 | tlan_reset_adapter(dev); | |
341 | if (priv->timer.function != NULL) { | |
342 | del_timer_sync(&priv->timer); | |
343 | priv->timer.function = NULL; | |
344 | } | |
345 | } | |
346 | ||
347 | #ifdef CONFIG_PM | |
348 | ||
349 | static int tlan_suspend(struct pci_dev *pdev, pm_message_t state) | |
350 | { | |
351 | struct net_device *dev = pci_get_drvdata(pdev); | |
352 | ||
353 | if (netif_running(dev)) | |
354 | tlan_stop(dev); | |
355 | ||
356 | netif_device_detach(dev); | |
357 | pci_save_state(pdev); | |
358 | pci_disable_device(pdev); | |
359 | pci_wake_from_d3(pdev, false); | |
360 | pci_set_power_state(pdev, PCI_D3hot); | |
361 | ||
362 | return 0; | |
363 | } | |
364 | ||
365 | static int tlan_resume(struct pci_dev *pdev) | |
366 | { | |
367 | struct net_device *dev = pci_get_drvdata(pdev); | |
e697b16b | 368 | int rc = pci_enable_device(pdev); |
fa6d5d4f | 369 | |
e697b16b OZ |
370 | if (rc) |
371 | return rc; | |
fa6d5d4f | 372 | pci_restore_state(pdev); |
1ca01512 | 373 | pci_enable_wake(pdev, PCI_D0, 0); |
fa6d5d4f SA |
374 | netif_device_attach(dev); |
375 | ||
376 | if (netif_running(dev)) | |
377 | tlan_start(dev); | |
378 | ||
379 | return 0; | |
380 | } | |
381 | ||
382 | #else /* CONFIG_PM */ | |
383 | ||
384 | #define tlan_suspend NULL | |
385 | #define tlan_resume NULL | |
386 | ||
387 | #endif /* CONFIG_PM */ | |
388 | ||
389 | ||
1da177e4 LT |
390 | static struct pci_driver tlan_driver = { |
391 | .name = "tlan", | |
392 | .id_table = tlan_pci_tbl, | |
393 | .probe = tlan_init_one, | |
36915876 | 394 | .remove = tlan_remove_one, |
fa6d5d4f SA |
395 | .suspend = tlan_suspend, |
396 | .resume = tlan_resume, | |
1da177e4 LT |
397 | }; |
398 | ||
399 | static int __init tlan_probe(void) | |
400 | { | |
6c04a515 | 401 | int rc = -ENODEV; |
6aa20a22 | 402 | |
50624aab | 403 | pr_info("%s", tlan_banner); |
6aa20a22 | 404 | |
1da177e4 | 405 | TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n"); |
6aa20a22 | 406 | |
1da177e4 LT |
407 | /* Use new style PCI probing. Now the kernel will |
408 | do most of this for us */ | |
6c04a515 LP |
409 | rc = pci_register_driver(&tlan_driver); |
410 | ||
411 | if (rc != 0) { | |
50624aab | 412 | pr_err("Could not register pci driver\n"); |
6c04a515 LP |
413 | goto err_out_pci_free; |
414 | } | |
1da177e4 LT |
415 | |
416 | TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n"); | |
c659c38b | 417 | tlan_eisa_probe(); |
6aa20a22 | 418 | |
50624aab JP |
419 | pr_info("%d device%s installed, PCI: %d EISA: %d\n", |
420 | tlan_devices_installed, tlan_devices_installed == 1 ? "" : "s", | |
421 | tlan_have_pci, tlan_have_eisa); | |
1da177e4 | 422 | |
c659c38b | 423 | if (tlan_devices_installed == 0) { |
6c04a515 LP |
424 | rc = -ENODEV; |
425 | goto err_out_pci_unreg; | |
1da177e4 LT |
426 | } |
427 | return 0; | |
6c04a515 LP |
428 | |
429 | err_out_pci_unreg: | |
430 | pci_unregister_driver(&tlan_driver); | |
431 | err_out_pci_free: | |
6c04a515 | 432 | return rc; |
1da177e4 | 433 | } |
6aa20a22 | 434 | |
1da177e4 | 435 | |
36915876 | 436 | static int tlan_init_one(struct pci_dev *pdev, |
c659c38b | 437 | const struct pci_device_id *ent) |
1da177e4 | 438 | { |
c659c38b | 439 | return tlan_probe1(pdev, -1, -1, 0, ent); |
1da177e4 LT |
440 | } |
441 | ||
442 | ||
443 | /* | |
c659c38b SA |
444 | *************************************************************** |
445 | * tlan_probe1 | |
446 | * | |
447 | * Returns: | |
448 | * 0 on success, error code on error | |
449 | * Parms: | |
450 | * none | |
451 | * | |
452 | * The name is lower case to fit in with all the rest of | |
453 | * the netcard_probe names. This function looks for | |
454 | * another TLan based adapter, setting it up with the | |
455 | * allocated device struct if one is found. | |
456 | * tlan_probe has been ported to the new net API and | |
457 | * now allocates its own device structure. This function | |
458 | * is also used by modules. | |
459 | * | |
460 | **************************************************************/ | |
461 | ||
1dd06ae8 GKH |
462 | static int tlan_probe1(struct pci_dev *pdev, long ioaddr, int irq, int rev, |
463 | const struct pci_device_id *ent) | |
1da177e4 LT |
464 | { |
465 | ||
466 | struct net_device *dev; | |
c659c38b | 467 | struct tlan_priv *priv; |
1da177e4 LT |
468 | u16 device_id; |
469 | int reg, rc = -ENODEV; | |
470 | ||
ad9f6713 | 471 | #ifdef CONFIG_PCI |
1da177e4 LT |
472 | if (pdev) { |
473 | rc = pci_enable_device(pdev); | |
474 | if (rc) | |
475 | return rc; | |
476 | ||
c659c38b | 477 | rc = pci_request_regions(pdev, tlan_signature); |
1da177e4 | 478 | if (rc) { |
50624aab | 479 | pr_err("Could not reserve IO regions\n"); |
1da177e4 LT |
480 | goto err_out; |
481 | } | |
482 | } | |
ad9f6713 | 483 | #endif /* CONFIG_PCI */ |
1da177e4 | 484 | |
c659c38b | 485 | dev = alloc_etherdev(sizeof(struct tlan_priv)); |
1da177e4 | 486 | if (dev == NULL) { |
1da177e4 LT |
487 | rc = -ENOMEM; |
488 | goto err_out_regions; | |
489 | } | |
1da177e4 | 490 | SET_NETDEV_DEV(dev, &pdev->dev); |
6aa20a22 | 491 | |
1da177e4 LT |
492 | priv = netdev_priv(dev); |
493 | ||
c659c38b | 494 | priv->pci_dev = pdev; |
c4028958 | 495 | priv->dev = dev; |
6aa20a22 | 496 | |
1da177e4 LT |
497 | /* Is this a PCI device? */ |
498 | if (pdev) { | |
c659c38b | 499 | u32 pci_io_base = 0; |
1da177e4 LT |
500 | |
501 | priv->adapter = &board_info[ent->driver_data]; | |
502 | ||
284901a9 | 503 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
1da177e4 | 504 | if (rc) { |
50624aab | 505 | pr_err("No suitable PCI mapping available\n"); |
1da177e4 LT |
506 | goto err_out_free_dev; |
507 | } | |
508 | ||
c659c38b | 509 | for (reg = 0; reg <= 5; reg++) { |
1da177e4 LT |
510 | if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) { |
511 | pci_io_base = pci_resource_start(pdev, reg); | |
c659c38b SA |
512 | TLAN_DBG(TLAN_DEBUG_GNRL, |
513 | "IO mapping is available at %x.\n", | |
514 | pci_io_base); | |
1da177e4 LT |
515 | break; |
516 | } | |
517 | } | |
518 | if (!pci_io_base) { | |
50624aab | 519 | pr_err("No IO mappings available\n"); |
1da177e4 LT |
520 | rc = -EIO; |
521 | goto err_out_free_dev; | |
522 | } | |
6aa20a22 | 523 | |
1da177e4 LT |
524 | dev->base_addr = pci_io_base; |
525 | dev->irq = pdev->irq; | |
c659c38b | 526 | priv->adapter_rev = pdev->revision; |
1da177e4 LT |
527 | pci_set_master(pdev); |
528 | pci_set_drvdata(pdev, dev); | |
529 | ||
530 | } else { /* EISA card */ | |
531 | /* This is a hack. We need to know which board structure | |
532 | * is suited for this adapter */ | |
533 | device_id = inw(ioaddr + EISA_ID2); | |
1da177e4 | 534 | if (device_id == 0x20F1) { |
c659c38b SA |
535 | priv->adapter = &board_info[13]; /* NetFlex-3/E */ |
536 | priv->adapter_rev = 23; /* TLAN 2.3 */ | |
1da177e4 LT |
537 | } else { |
538 | priv->adapter = &board_info[14]; | |
c659c38b | 539 | priv->adapter_rev = 10; /* TLAN 1.0 */ |
1da177e4 LT |
540 | } |
541 | dev->base_addr = ioaddr; | |
542 | dev->irq = irq; | |
543 | } | |
544 | ||
545 | /* Kernel parameters */ | |
546 | if (dev->mem_start) { | |
547 | priv->aui = dev->mem_start & 0x01; | |
dfc2c0a6 SH |
548 | priv->duplex = ((dev->mem_start & 0x06) == 0x06) ? 0 |
549 | : (dev->mem_start & 0x06) >> 1; | |
550 | priv->speed = ((dev->mem_start & 0x18) == 0x18) ? 0 | |
551 | : (dev->mem_start & 0x18) >> 3; | |
6aa20a22 | 552 | |
c659c38b | 553 | if (priv->speed == 0x1) |
1da177e4 | 554 | priv->speed = TLAN_SPEED_10; |
c659c38b | 555 | else if (priv->speed == 0x2) |
1da177e4 | 556 | priv->speed = TLAN_SPEED_100; |
c659c38b | 557 | |
1da177e4 LT |
558 | debug = priv->debug = dev->mem_end; |
559 | } else { | |
560 | priv->aui = aui[boards_found]; | |
561 | priv->speed = speed[boards_found]; | |
562 | priv->duplex = duplex[boards_found]; | |
563 | priv->debug = debug; | |
564 | } | |
6aa20a22 | 565 | |
1da177e4 LT |
566 | /* This will be used when we get an adapter error from |
567 | * within our irq handler */ | |
c659c38b | 568 | INIT_WORK(&priv->tlan_tqueue, tlan_tx_timeout_work); |
1da177e4 LT |
569 | |
570 | spin_lock_init(&priv->lock); | |
6aa20a22 | 571 | |
c659c38b | 572 | rc = tlan_init(dev); |
1da177e4 | 573 | if (rc) { |
50624aab | 574 | pr_err("Could not set up device\n"); |
1da177e4 LT |
575 | goto err_out_free_dev; |
576 | } | |
577 | ||
578 | rc = register_netdev(dev); | |
579 | if (rc) { | |
50624aab | 580 | pr_err("Could not register device\n"); |
1da177e4 LT |
581 | goto err_out_uninit; |
582 | } | |
583 | ||
6aa20a22 | 584 | |
c659c38b | 585 | tlan_devices_installed++; |
1da177e4 | 586 | boards_found++; |
6aa20a22 | 587 | |
1da177e4 LT |
588 | /* pdev is NULL if this is an EISA device */ |
589 | if (pdev) | |
590 | tlan_have_pci++; | |
591 | else { | |
c659c38b SA |
592 | priv->next_device = tlan_eisa_devices; |
593 | tlan_eisa_devices = dev; | |
1da177e4 LT |
594 | tlan_have_eisa++; |
595 | } | |
6aa20a22 | 596 | |
50624aab JP |
597 | netdev_info(dev, "irq=%2d, io=%04x, %s, Rev. %d\n", |
598 | (int)dev->irq, | |
599 | (int)dev->base_addr, | |
600 | priv->adapter->device_label, | |
601 | priv->adapter_rev); | |
1da177e4 LT |
602 | return 0; |
603 | ||
604 | err_out_uninit: | |
c659c38b SA |
605 | pci_free_consistent(priv->pci_dev, priv->dma_size, priv->dma_storage, |
606 | priv->dma_storage_dma); | |
1da177e4 LT |
607 | err_out_free_dev: |
608 | free_netdev(dev); | |
609 | err_out_regions: | |
610 | #ifdef CONFIG_PCI | |
611 | if (pdev) | |
612 | pci_release_regions(pdev); | |
613 | #endif | |
614 | err_out: | |
615 | if (pdev) | |
616 | pci_disable_device(pdev); | |
617 | return rc; | |
618 | } | |
619 | ||
620 | ||
c659c38b | 621 | static void tlan_eisa_cleanup(void) |
1da177e4 LT |
622 | { |
623 | struct net_device *dev; | |
c659c38b | 624 | struct tlan_priv *priv; |
6aa20a22 | 625 | |
c659c38b SA |
626 | while (tlan_have_eisa) { |
627 | dev = tlan_eisa_devices; | |
1da177e4 | 628 | priv = netdev_priv(dev); |
c659c38b SA |
629 | if (priv->dma_storage) { |
630 | pci_free_consistent(priv->pci_dev, priv->dma_size, | |
631 | priv->dma_storage, | |
632 | priv->dma_storage_dma); | |
1da177e4 | 633 | } |
c659c38b SA |
634 | release_region(dev->base_addr, 0x10); |
635 | unregister_netdev(dev); | |
636 | tlan_eisa_devices = priv->next_device; | |
637 | free_netdev(dev); | |
1da177e4 LT |
638 | tlan_have_eisa--; |
639 | } | |
640 | } | |
6aa20a22 JG |
641 | |
642 | ||
1da177e4 LT |
643 | static void __exit tlan_exit(void) |
644 | { | |
645 | pci_unregister_driver(&tlan_driver); | |
646 | ||
647 | if (tlan_have_eisa) | |
c659c38b | 648 | tlan_eisa_cleanup(); |
1da177e4 | 649 | |
1da177e4 LT |
650 | } |
651 | ||
652 | ||
653 | /* Module loading/unloading */ | |
654 | module_init(tlan_probe); | |
655 | module_exit(tlan_exit); | |
656 | ||
657 | ||
658 | ||
c659c38b SA |
659 | /************************************************************** |
660 | * tlan_eisa_probe | |
661 | * | |
662 | * Returns: 0 on success, 1 otherwise | |
663 | * | |
664 | * Parms: None | |
665 | * | |
666 | * | |
667 | * This functions probes for EISA devices and calls | |
668 | * TLan_probe1 when one is found. | |
669 | * | |
670 | *************************************************************/ | |
1da177e4 | 671 | |
c659c38b | 672 | static void __init tlan_eisa_probe(void) |
1da177e4 | 673 | { |
c659c38b SA |
674 | long ioaddr; |
675 | int rc = -ENODEV; | |
676 | int irq; | |
1da177e4 LT |
677 | u16 device_id; |
678 | ||
6aa20a22 | 679 | if (!EISA_bus) { |
1da177e4 LT |
680 | TLAN_DBG(TLAN_DEBUG_PROBE, "No EISA bus present\n"); |
681 | return; | |
682 | } | |
6aa20a22 | 683 | |
1da177e4 LT |
684 | /* Loop through all slots of the EISA bus */ |
685 | for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) { | |
6aa20a22 | 686 | |
c659c38b SA |
687 | TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n", |
688 | (int) ioaddr + 0xc80, inw(ioaddr + EISA_ID)); | |
689 | TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n", | |
690 | (int) ioaddr + 0xc82, inw(ioaddr + EISA_ID2)); | |
1da177e4 LT |
691 | |
692 | ||
c659c38b SA |
693 | TLAN_DBG(TLAN_DEBUG_PROBE, |
694 | "Probing for EISA adapter at IO: 0x%4x : ", | |
695 | (int) ioaddr); | |
696 | if (request_region(ioaddr, 0x10, tlan_signature) == NULL) | |
1da177e4 LT |
697 | goto out; |
698 | ||
6aa20a22 | 699 | if (inw(ioaddr + EISA_ID) != 0x110E) { |
1da177e4 LT |
700 | release_region(ioaddr, 0x10); |
701 | goto out; | |
702 | } | |
6aa20a22 | 703 | |
1da177e4 | 704 | device_id = inw(ioaddr + EISA_ID2); |
6aa20a22 | 705 | if (device_id != 0x20F1 && device_id != 0x40F1) { |
c659c38b | 706 | release_region(ioaddr, 0x10); |
1da177e4 LT |
707 | goto out; |
708 | } | |
6aa20a22 | 709 | |
c659c38b SA |
710 | /* check if adapter is enabled */ |
711 | if (inb(ioaddr + EISA_CR) != 0x1) { | |
712 | release_region(ioaddr, 0x10); | |
1da177e4 LT |
713 | goto out2; |
714 | } | |
6aa20a22 JG |
715 | |
716 | if (debug == 0x10) | |
50624aab | 717 | pr_info("Found one\n"); |
1da177e4 LT |
718 | |
719 | ||
720 | /* Get irq from board */ | |
c659c38b SA |
721 | switch (inb(ioaddr + 0xcc0)) { |
722 | case(0x10): | |
723 | irq = 5; | |
724 | break; | |
725 | case(0x20): | |
726 | irq = 9; | |
727 | break; | |
728 | case(0x40): | |
729 | irq = 10; | |
730 | break; | |
731 | case(0x80): | |
732 | irq = 11; | |
733 | break; | |
734 | default: | |
735 | goto out; | |
6aa20a22 JG |
736 | } |
737 | ||
738 | ||
1da177e4 | 739 | /* Setup the newly found eisa adapter */ |
c659c38b SA |
740 | rc = tlan_probe1(NULL, ioaddr, irq, |
741 | 12, NULL); | |
1da177e4 | 742 | continue; |
6aa20a22 | 743 | |
c659c38b SA |
744 | out: |
745 | if (debug == 0x10) | |
50624aab | 746 | pr_info("None found\n"); |
c659c38b | 747 | continue; |
1da177e4 | 748 | |
c659c38b SA |
749 | out2: |
750 | if (debug == 0x10) | |
50624aab | 751 | pr_info("Card found but it is not enabled, skipping\n"); |
c659c38b | 752 | continue; |
6aa20a22 | 753 | |
1da177e4 LT |
754 | } |
755 | ||
c659c38b | 756 | } |
1da177e4 LT |
757 | |
758 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
c659c38b | 759 | static void tlan_poll(struct net_device *dev) |
1da177e4 LT |
760 | { |
761 | disable_irq(dev->irq); | |
c659c38b | 762 | tlan_handle_interrupt(dev->irq, dev); |
1da177e4 LT |
763 | enable_irq(dev->irq); |
764 | } | |
765 | #endif | |
766 | ||
c659c38b SA |
767 | static const struct net_device_ops tlan_netdev_ops = { |
768 | .ndo_open = tlan_open, | |
769 | .ndo_stop = tlan_close, | |
770 | .ndo_start_xmit = tlan_start_tx, | |
771 | .ndo_tx_timeout = tlan_tx_timeout, | |
772 | .ndo_get_stats = tlan_get_stats, | |
afc4b13d | 773 | .ndo_set_rx_mode = tlan_set_multicast_list, |
c659c38b | 774 | .ndo_do_ioctl = tlan_ioctl, |
391c5e6e | 775 | .ndo_change_mtu = eth_change_mtu, |
c659c38b | 776 | .ndo_set_mac_address = eth_mac_addr, |
391c5e6e SH |
777 | .ndo_validate_addr = eth_validate_addr, |
778 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
c659c38b | 779 | .ndo_poll_controller = tlan_poll, |
391c5e6e SH |
780 | #endif |
781 | }; | |
6aa20a22 | 782 | |
e36124d4 OZ |
783 | static void tlan_get_drvinfo(struct net_device *dev, |
784 | struct ethtool_drvinfo *info) | |
785 | { | |
786 | struct tlan_priv *priv = netdev_priv(dev); | |
787 | ||
788 | strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); | |
789 | if (priv->pci_dev) | |
790 | strlcpy(info->bus_info, pci_name(priv->pci_dev), | |
791 | sizeof(info->bus_info)); | |
792 | else | |
793 | strlcpy(info->bus_info, "EISA", sizeof(info->bus_info)); | |
e36124d4 OZ |
794 | } |
795 | ||
796 | static int tlan_get_eeprom_len(struct net_device *dev) | |
797 | { | |
798 | return TLAN_EEPROM_SIZE; | |
799 | } | |
1da177e4 | 800 | |
e36124d4 OZ |
801 | static int tlan_get_eeprom(struct net_device *dev, |
802 | struct ethtool_eeprom *eeprom, u8 *data) | |
803 | { | |
804 | int i; | |
805 | ||
806 | for (i = 0; i < TLAN_EEPROM_SIZE; i++) | |
807 | if (tlan_ee_read_byte(dev, i, &data[i])) | |
808 | return -EIO; | |
809 | ||
810 | return 0; | |
811 | } | |
812 | ||
813 | static const struct ethtool_ops tlan_ethtool_ops = { | |
814 | .get_drvinfo = tlan_get_drvinfo, | |
815 | .get_link = ethtool_op_get_link, | |
816 | .get_eeprom_len = tlan_get_eeprom_len, | |
817 | .get_eeprom = tlan_get_eeprom, | |
818 | }; | |
1da177e4 | 819 | |
c659c38b SA |
820 | /*************************************************************** |
821 | * tlan_init | |
822 | * | |
823 | * Returns: | |
824 | * 0 on success, error code otherwise. | |
825 | * Parms: | |
826 | * dev The structure of the device to be | |
827 | * init'ed. | |
828 | * | |
829 | * This function completes the initialization of the | |
830 | * device structure and driver. It reserves the IO | |
831 | * addresses, allocates memory for the lists and bounce | |
832 | * buffers, retrieves the MAC address from the eeprom | |
833 | * and assignes the device's methods. | |
834 | * | |
835 | **************************************************************/ | |
836 | ||
837 | static int tlan_init(struct net_device *dev) | |
1da177e4 LT |
838 | { |
839 | int dma_size; | |
c659c38b | 840 | int err; |
1da177e4 | 841 | int i; |
c659c38b | 842 | struct tlan_priv *priv; |
1da177e4 LT |
843 | |
844 | priv = netdev_priv(dev); | |
6aa20a22 | 845 | |
c659c38b SA |
846 | dma_size = (TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS) |
847 | * (sizeof(struct tlan_list)); | |
848 | priv->dma_storage = pci_alloc_consistent(priv->pci_dev, | |
849 | dma_size, | |
850 | &priv->dma_storage_dma); | |
851 | priv->dma_size = dma_size; | |
852 | ||
853 | if (priv->dma_storage == NULL) { | |
50624aab | 854 | pr_err("Could not allocate lists and buffers for %s\n", |
c659c38b | 855 | dev->name); |
1da177e4 LT |
856 | return -ENOMEM; |
857 | } | |
c659c38b SA |
858 | memset(priv->dma_storage, 0, dma_size); |
859 | priv->rx_list = (struct tlan_list *) | |
860 | ALIGN((unsigned long)priv->dma_storage, 8); | |
861 | priv->rx_list_dma = ALIGN(priv->dma_storage_dma, 8); | |
862 | priv->tx_list = priv->rx_list + TLAN_NUM_RX_LISTS; | |
863 | priv->tx_list_dma = | |
864 | priv->rx_list_dma + sizeof(struct tlan_list)*TLAN_NUM_RX_LISTS; | |
93e16847 | 865 | |
1da177e4 | 866 | err = 0; |
59be4ad6 | 867 | for (i = 0; i < ETH_ALEN; i++) |
c659c38b SA |
868 | err |= tlan_ee_read_byte(dev, |
869 | (u8) priv->adapter->addr_ofs + i, | |
870 | (u8 *) &dev->dev_addr[i]); | |
871 | if (err) { | |
50624aab JP |
872 | pr_err("%s: Error reading MAC from eeprom: %d\n", |
873 | dev->name, err); | |
1da177e4 | 874 | } |
59be4ad6 OZ |
875 | /* Olicom OC-2325/OC-2326 have the address byte-swapped */ |
876 | if (priv->adapter->addr_ofs == 0xf8) { | |
877 | for (i = 0; i < ETH_ALEN; i += 2) { | |
878 | char tmp = dev->dev_addr[i]; | |
879 | dev->dev_addr[i] = dev->dev_addr[i + 1]; | |
880 | dev->dev_addr[i + 1] = tmp; | |
881 | } | |
882 | } | |
1da177e4 LT |
883 | |
884 | netif_carrier_off(dev); | |
885 | ||
886 | /* Device methods */ | |
c659c38b | 887 | dev->netdev_ops = &tlan_netdev_ops; |
e36124d4 | 888 | dev->ethtool_ops = &tlan_ethtool_ops; |
1da177e4 LT |
889 | dev->watchdog_timeo = TX_TIMEOUT; |
890 | ||
891 | return 0; | |
892 | ||
c659c38b | 893 | } |
1da177e4 LT |
894 | |
895 | ||
896 | ||
897 | ||
c659c38b SA |
898 | /*************************************************************** |
899 | * tlan_open | |
900 | * | |
901 | * Returns: | |
902 | * 0 on success, error code otherwise. | |
903 | * Parms: | |
904 | * dev Structure of device to be opened. | |
905 | * | |
906 | * This routine puts the driver and TLAN adapter in a | |
907 | * state where it is ready to send and receive packets. | |
908 | * It allocates the IRQ, resets and brings the adapter | |
909 | * out of reset, and allows interrupts. It also delays | |
910 | * the startup for autonegotiation or sends a Rx GO | |
911 | * command to the adapter, as appropriate. | |
912 | * | |
913 | **************************************************************/ | |
1da177e4 | 914 | |
c659c38b | 915 | static int tlan_open(struct net_device *dev) |
1da177e4 | 916 | { |
c659c38b | 917 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 | 918 | int err; |
6aa20a22 | 919 | |
c659c38b SA |
920 | priv->tlan_rev = tlan_dio_read8(dev->base_addr, TLAN_DEF_REVISION); |
921 | err = request_irq(dev->irq, tlan_handle_interrupt, IRQF_SHARED, | |
922 | dev->name, dev); | |
6aa20a22 | 923 | |
c659c38b | 924 | if (err) { |
50624aab JP |
925 | netdev_err(dev, "Cannot open because IRQ %d is already in use\n", |
926 | dev->irq); | |
1da177e4 LT |
927 | return err; |
928 | } | |
6aa20a22 | 929 | |
1da177e4 | 930 | init_timer(&priv->timer); |
c0a87c22 | 931 | init_timer(&priv->media_timer); |
6aa20a22 | 932 | |
fa6d5d4f | 933 | tlan_start(dev); |
1da177e4 | 934 | |
c659c38b SA |
935 | TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %x\n", |
936 | dev->name, priv->tlan_rev); | |
1da177e4 LT |
937 | |
938 | return 0; | |
939 | ||
c659c38b | 940 | } |
1da177e4 LT |
941 | |
942 | ||
943 | ||
c659c38b SA |
944 | /************************************************************** |
945 | * tlan_ioctl | |
946 | * | |
947 | * Returns: | |
948 | * 0 on success, error code otherwise | |
949 | * Params: | |
950 | * dev structure of device to receive ioctl. | |
951 | * | |
952 | * rq ifreq structure to hold userspace data. | |
953 | * | |
954 | * cmd ioctl command. | |
955 | * | |
956 | * | |
957 | *************************************************************/ | |
1da177e4 | 958 | |
c659c38b | 959 | static int tlan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
1da177e4 | 960 | { |
c659c38b | 961 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 | 962 | struct mii_ioctl_data *data = if_mii(rq); |
c659c38b | 963 | u32 phy = priv->phy[priv->phy_num]; |
6aa20a22 | 964 | |
c659c38b | 965 | if (!priv->phy_online) |
1da177e4 LT |
966 | return -EAGAIN; |
967 | ||
c659c38b SA |
968 | switch (cmd) { |
969 | case SIOCGMIIPHY: /* get address of MII PHY in use. */ | |
970 | data->phy_id = phy; | |
1da177e4 LT |
971 | |
972 | ||
c659c38b SA |
973 | case SIOCGMIIREG: /* read MII PHY register. */ |
974 | tlan_mii_read_reg(dev, data->phy_id & 0x1f, | |
975 | data->reg_num & 0x1f, &data->val_out); | |
976 | return 0; | |
6aa20a22 | 977 | |
1da177e4 | 978 | |
c659c38b SA |
979 | case SIOCSMIIREG: /* write MII PHY register. */ |
980 | tlan_mii_write_reg(dev, data->phy_id & 0x1f, | |
981 | data->reg_num & 0x1f, data->val_in); | |
982 | return 0; | |
983 | default: | |
984 | return -EOPNOTSUPP; | |
1da177e4 | 985 | } |
c659c38b | 986 | } |
1da177e4 LT |
987 | |
988 | ||
c659c38b SA |
989 | /*************************************************************** |
990 | * tlan_tx_timeout | |
991 | * | |
992 | * Returns: nothing | |
993 | * | |
994 | * Params: | |
995 | * dev structure of device which timed out | |
996 | * during transmit. | |
997 | * | |
998 | **************************************************************/ | |
1da177e4 | 999 | |
c659c38b | 1000 | static void tlan_tx_timeout(struct net_device *dev) |
1da177e4 | 1001 | { |
6aa20a22 | 1002 | |
c659c38b | 1003 | TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Transmit timed out.\n", dev->name); |
6aa20a22 | 1004 | |
1da177e4 | 1005 | /* Ok so we timed out, lets see what we can do about it...*/ |
c659c38b SA |
1006 | tlan_free_lists(dev); |
1007 | tlan_reset_lists(dev); | |
1008 | tlan_read_and_clear_stats(dev, TLAN_IGNORE); | |
1009 | tlan_reset_adapter(dev); | |
860e9538 | 1010 | netif_trans_update(dev); /* prevent tx timeout */ |
c659c38b | 1011 | netif_wake_queue(dev); |
1da177e4 LT |
1012 | |
1013 | } | |
6aa20a22 | 1014 | |
1da177e4 | 1015 | |
c659c38b SA |
1016 | /*************************************************************** |
1017 | * tlan_tx_timeout_work | |
1018 | * | |
1019 | * Returns: nothing | |
1020 | * | |
1021 | * Params: | |
1022 | * work work item of device which timed out | |
1023 | * | |
1024 | **************************************************************/ | |
c4028958 | 1025 | |
c659c38b | 1026 | static void tlan_tx_timeout_work(struct work_struct *work) |
c4028958 | 1027 | { |
c659c38b SA |
1028 | struct tlan_priv *priv = |
1029 | container_of(work, struct tlan_priv, tlan_tqueue); | |
c4028958 | 1030 | |
c659c38b | 1031 | tlan_tx_timeout(priv->dev); |
c4028958 DH |
1032 | } |
1033 | ||
1034 | ||
1da177e4 | 1035 | |
c659c38b SA |
1036 | /*************************************************************** |
1037 | * tlan_start_tx | |
1038 | * | |
1039 | * Returns: | |
1040 | * 0 on success, non-zero on failure. | |
1041 | * Parms: | |
1042 | * skb A pointer to the sk_buff containing the | |
1043 | * frame to be sent. | |
1044 | * dev The device to send the data on. | |
1045 | * | |
1046 | * This function adds a frame to the Tx list to be sent | |
1047 | * ASAP. First it verifies that the adapter is ready and | |
1048 | * there is room in the queue. Then it sets up the next | |
1049 | * available list, copies the frame to the corresponding | |
1050 | * buffer. If the adapter Tx channel is idle, it gives | |
1051 | * the adapter a Tx Go command on the list, otherwise it | |
1052 | * sets the forward address of the previous list to point | |
1053 | * to this one. Then it frees the sk_buff. | |
1054 | * | |
1055 | **************************************************************/ | |
1056 | ||
1057 | static netdev_tx_t tlan_start_tx(struct sk_buff *skb, struct net_device *dev) | |
1da177e4 | 1058 | { |
c659c38b | 1059 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 | 1060 | dma_addr_t tail_list_phys; |
c659c38b | 1061 | struct tlan_list *tail_list; |
1da177e4 | 1062 | unsigned long flags; |
8953f128 | 1063 | unsigned int txlen; |
1da177e4 | 1064 | |
c659c38b SA |
1065 | if (!priv->phy_online) { |
1066 | TLAN_DBG(TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n", | |
1067 | dev->name); | |
1da177e4 | 1068 | dev_kfree_skb_any(skb); |
6ed10654 | 1069 | return NETDEV_TX_OK; |
1da177e4 LT |
1070 | } |
1071 | ||
41873e9a | 1072 | if (skb_padto(skb, TLAN_MIN_FRAME_SIZE)) |
6ed10654 | 1073 | return NETDEV_TX_OK; |
8953f128 | 1074 | txlen = max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE); |
41873e9a | 1075 | |
c659c38b SA |
1076 | tail_list = priv->tx_list + priv->tx_tail; |
1077 | tail_list_phys = | |
1078 | priv->tx_list_dma + sizeof(struct tlan_list)*priv->tx_tail; | |
6aa20a22 | 1079 | |
c659c38b SA |
1080 | if (tail_list->c_stat != TLAN_CSTAT_UNUSED) { |
1081 | TLAN_DBG(TLAN_DEBUG_TX, | |
1082 | "TRANSMIT: %s is busy (Head=%d Tail=%d)\n", | |
1083 | dev->name, priv->tx_head, priv->tx_tail); | |
1da177e4 | 1084 | netif_stop_queue(dev); |
c659c38b | 1085 | priv->tx_busy_count++; |
5b548140 | 1086 | return NETDEV_TX_BUSY; |
1da177e4 LT |
1087 | } |
1088 | ||
1089 | tail_list->forward = 0; | |
1090 | ||
c659c38b | 1091 | tail_list->buffer[0].address = pci_map_single(priv->pci_dev, |
5eeabf51 SA |
1092 | skb->data, txlen, |
1093 | PCI_DMA_TODEVICE); | |
c659c38b | 1094 | tlan_store_skb(tail_list, skb); |
1da177e4 | 1095 | |
c659c38b | 1096 | tail_list->frame_size = (u16) txlen; |
8953f128 | 1097 | tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) txlen; |
41873e9a SH |
1098 | tail_list->buffer[1].count = 0; |
1099 | tail_list->buffer[1].address = 0; | |
1da177e4 LT |
1100 | |
1101 | spin_lock_irqsave(&priv->lock, flags); | |
c659c38b SA |
1102 | tail_list->c_stat = TLAN_CSTAT_READY; |
1103 | if (!priv->tx_in_progress) { | |
1104 | priv->tx_in_progress = 1; | |
1105 | TLAN_DBG(TLAN_DEBUG_TX, | |
1106 | "TRANSMIT: Starting TX on buffer %d\n", | |
1107 | priv->tx_tail); | |
1108 | outl(tail_list_phys, dev->base_addr + TLAN_CH_PARM); | |
1109 | outl(TLAN_HC_GO, dev->base_addr + TLAN_HOST_CMD); | |
1da177e4 | 1110 | } else { |
c659c38b SA |
1111 | TLAN_DBG(TLAN_DEBUG_TX, |
1112 | "TRANSMIT: Adding buffer %d to TX channel\n", | |
1113 | priv->tx_tail); | |
1114 | if (priv->tx_tail == 0) { | |
1115 | (priv->tx_list + (TLAN_NUM_TX_LISTS - 1))->forward | |
dfc2c0a6 | 1116 | = tail_list_phys; |
1da177e4 | 1117 | } else { |
c659c38b | 1118 | (priv->tx_list + (priv->tx_tail - 1))->forward |
dfc2c0a6 | 1119 | = tail_list_phys; |
1da177e4 LT |
1120 | } |
1121 | } | |
1122 | spin_unlock_irqrestore(&priv->lock, flags); | |
1123 | ||
c659c38b | 1124 | CIRC_INC(priv->tx_tail, TLAN_NUM_TX_LISTS); |
1da177e4 | 1125 | |
6ed10654 | 1126 | return NETDEV_TX_OK; |
1da177e4 | 1127 | |
c659c38b | 1128 | } |
1da177e4 LT |
1129 | |
1130 | ||
1131 | ||
1132 | ||
c659c38b SA |
1133 | /*************************************************************** |
1134 | * tlan_handle_interrupt | |
1135 | * | |
1136 | * Returns: | |
1137 | * Nothing | |
1138 | * Parms: | |
1139 | * irq The line on which the interrupt | |
1140 | * occurred. | |
1141 | * dev_id A pointer to the device assigned to | |
1142 | * this irq line. | |
1143 | * | |
1144 | * This function handles an interrupt generated by its | |
1145 | * assigned TLAN adapter. The function deactivates | |
1146 | * interrupts on its adapter, records the type of | |
1147 | * interrupt, executes the appropriate subhandler, and | |
1148 | * acknowdges the interrupt to the adapter (thus | |
1149 | * re-enabling adapter interrupts. | |
1150 | * | |
1151 | **************************************************************/ | |
1da177e4 | 1152 | |
c659c38b | 1153 | static irqreturn_t tlan_handle_interrupt(int irq, void *dev_id) |
1da177e4 | 1154 | { |
a3ccc789 | 1155 | struct net_device *dev = dev_id; |
c659c38b | 1156 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 | 1157 | u16 host_int; |
a3ccc789 | 1158 | u16 type; |
1da177e4 LT |
1159 | |
1160 | spin_lock(&priv->lock); | |
1161 | ||
c659c38b SA |
1162 | host_int = inw(dev->base_addr + TLAN_HOST_INT); |
1163 | type = (host_int & TLAN_HI_IT_MASK) >> 2; | |
1164 | if (type) { | |
a3ccc789 SH |
1165 | u32 ack; |
1166 | u32 host_cmd; | |
1da177e4 | 1167 | |
c659c38b SA |
1168 | outw(host_int, dev->base_addr + TLAN_HOST_INT); |
1169 | ack = tlan_int_vector[type](dev, host_int); | |
1da177e4 | 1170 | |
c659c38b SA |
1171 | if (ack) { |
1172 | host_cmd = TLAN_HC_ACK | ack | (type << 18); | |
1173 | outl(host_cmd, dev->base_addr + TLAN_HOST_CMD); | |
a3ccc789 | 1174 | } |
1da177e4 LT |
1175 | } |
1176 | ||
1177 | spin_unlock(&priv->lock); | |
1178 | ||
a3ccc789 | 1179 | return IRQ_RETVAL(type); |
c659c38b | 1180 | } |
1da177e4 LT |
1181 | |
1182 | ||
1183 | ||
1184 | ||
c659c38b SA |
1185 | /*************************************************************** |
1186 | * tlan_close | |
1187 | * | |
1188 | * Returns: | |
1189 | * An error code. | |
1190 | * Parms: | |
1191 | * dev The device structure of the device to | |
1192 | * close. | |
1193 | * | |
1194 | * This function shuts down the adapter. It records any | |
1195 | * stats, puts the adapter into reset state, deactivates | |
1196 | * its time as needed, and frees the irq it is using. | |
1197 | * | |
1198 | **************************************************************/ | |
1da177e4 | 1199 | |
c659c38b | 1200 | static int tlan_close(struct net_device *dev) |
1da177e4 | 1201 | { |
fa6d5d4f | 1202 | tlan_stop(dev); |
6aa20a22 | 1203 | |
c659c38b SA |
1204 | free_irq(dev->irq, dev); |
1205 | tlan_free_lists(dev); | |
1206 | TLAN_DBG(TLAN_DEBUG_GNRL, "Device %s closed.\n", dev->name); | |
1da177e4 LT |
1207 | |
1208 | return 0; | |
1209 | ||
c659c38b | 1210 | } |
1da177e4 LT |
1211 | |
1212 | ||
1213 | ||
1214 | ||
c659c38b SA |
1215 | /*************************************************************** |
1216 | * tlan_get_stats | |
1217 | * | |
1218 | * Returns: | |
1219 | * A pointer to the device's statistics structure. | |
1220 | * Parms: | |
1221 | * dev The device structure to return the | |
1222 | * stats for. | |
1223 | * | |
1224 | * This function updates the devices statistics by reading | |
1225 | * the TLAN chip's onboard registers. Then it returns the | |
1226 | * address of the statistics structure. | |
1227 | * | |
1228 | **************************************************************/ | |
1da177e4 | 1229 | |
c659c38b | 1230 | static struct net_device_stats *tlan_get_stats(struct net_device *dev) |
1da177e4 | 1231 | { |
c659c38b | 1232 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
1233 | int i; |
1234 | ||
1235 | /* Should only read stats if open ? */ | |
c659c38b | 1236 | tlan_read_and_clear_stats(dev, TLAN_RECORD); |
1da177e4 | 1237 | |
c659c38b SA |
1238 | TLAN_DBG(TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %d\n", dev->name, |
1239 | priv->rx_eoc_count); | |
1240 | TLAN_DBG(TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %d\n", dev->name, | |
1241 | priv->tx_busy_count); | |
1242 | if (debug & TLAN_DEBUG_GNRL) { | |
1243 | tlan_print_dio(dev->base_addr); | |
1244 | tlan_phy_print(dev); | |
1da177e4 | 1245 | } |
c659c38b SA |
1246 | if (debug & TLAN_DEBUG_LIST) { |
1247 | for (i = 0; i < TLAN_NUM_RX_LISTS; i++) | |
1248 | tlan_print_list(priv->rx_list + i, "RX", i); | |
1249 | for (i = 0; i < TLAN_NUM_TX_LISTS; i++) | |
1250 | tlan_print_list(priv->tx_list + i, "TX", i); | |
1da177e4 | 1251 | } |
6aa20a22 | 1252 | |
f8f31544 | 1253 | return &dev->stats; |
1da177e4 | 1254 | |
c659c38b | 1255 | } |
1da177e4 LT |
1256 | |
1257 | ||
1258 | ||
1259 | ||
c659c38b SA |
1260 | /*************************************************************** |
1261 | * tlan_set_multicast_list | |
1262 | * | |
1263 | * Returns: | |
1264 | * Nothing | |
1265 | * Parms: | |
1266 | * dev The device structure to set the | |
1267 | * multicast list for. | |
1268 | * | |
1269 | * This function sets the TLAN adaptor to various receive | |
1270 | * modes. If the IFF_PROMISC flag is set, promiscuous | |
1271 | * mode is acitviated. Otherwise, promiscuous mode is | |
1272 | * turned off. If the IFF_ALLMULTI flag is set, then | |
1273 | * the hash table is set to receive all group addresses. | |
1274 | * Otherwise, the first three multicast addresses are | |
1275 | * stored in AREG_1-3, and the rest are selected via the | |
1276 | * hash table, as necessary. | |
1277 | * | |
1278 | **************************************************************/ | |
1da177e4 | 1279 | |
c659c38b | 1280 | static void tlan_set_multicast_list(struct net_device *dev) |
6aa20a22 | 1281 | { |
22bedad3 | 1282 | struct netdev_hw_addr *ha; |
1da177e4 LT |
1283 | u32 hash1 = 0; |
1284 | u32 hash2 = 0; | |
1285 | int i; | |
1286 | u32 offset; | |
1287 | u8 tmp; | |
1288 | ||
c659c38b SA |
1289 | if (dev->flags & IFF_PROMISC) { |
1290 | tmp = tlan_dio_read8(dev->base_addr, TLAN_NET_CMD); | |
1291 | tlan_dio_write8(dev->base_addr, | |
1292 | TLAN_NET_CMD, tmp | TLAN_NET_CMD_CAF); | |
1da177e4 | 1293 | } else { |
c659c38b SA |
1294 | tmp = tlan_dio_read8(dev->base_addr, TLAN_NET_CMD); |
1295 | tlan_dio_write8(dev->base_addr, | |
1296 | TLAN_NET_CMD, tmp & ~TLAN_NET_CMD_CAF); | |
1297 | if (dev->flags & IFF_ALLMULTI) { | |
1298 | for (i = 0; i < 3; i++) | |
1299 | tlan_set_mac(dev, i + 1, NULL); | |
1300 | tlan_dio_write32(dev->base_addr, TLAN_HASH_1, | |
1301 | 0xffffffff); | |
1302 | tlan_dio_write32(dev->base_addr, TLAN_HASH_2, | |
1303 | 0xffffffff); | |
1da177e4 | 1304 | } else { |
567ec874 | 1305 | i = 0; |
22bedad3 | 1306 | netdev_for_each_mc_addr(ha, dev) { |
c659c38b SA |
1307 | if (i < 3) { |
1308 | tlan_set_mac(dev, i + 1, | |
22bedad3 | 1309 | (char *) &ha->addr); |
1da177e4 | 1310 | } else { |
c659c38b SA |
1311 | offset = |
1312 | tlan_hash_func((u8 *)&ha->addr); | |
1313 | if (offset < 32) | |
1314 | hash1 |= (1 << offset); | |
1da177e4 | 1315 | else |
c659c38b | 1316 | hash2 |= (1 << (offset - 32)); |
1da177e4 | 1317 | } |
567ec874 | 1318 | i++; |
1da177e4 | 1319 | } |
c659c38b SA |
1320 | for ( ; i < 3; i++) |
1321 | tlan_set_mac(dev, i + 1, NULL); | |
1322 | tlan_dio_write32(dev->base_addr, TLAN_HASH_1, hash1); | |
1323 | tlan_dio_write32(dev->base_addr, TLAN_HASH_2, hash2); | |
1da177e4 LT |
1324 | } |
1325 | } | |
1326 | ||
c659c38b | 1327 | } |
1da177e4 LT |
1328 | |
1329 | ||
1330 | ||
1331 | /***************************************************************************** | |
1332 | ****************************************************************************** | |
1333 | ||
c659c38b | 1334 | ThunderLAN driver interrupt vectors and table |
1da177e4 | 1335 | |
c659c38b SA |
1336 | please see chap. 4, "Interrupt Handling" of the "ThunderLAN |
1337 | Programmer's Guide" for more informations on handling interrupts | |
1338 | generated by TLAN based adapters. | |
1da177e4 LT |
1339 | |
1340 | ****************************************************************************** | |
1341 | *****************************************************************************/ | |
1342 | ||
1343 | ||
1da177e4 LT |
1344 | |
1345 | ||
c659c38b SA |
1346 | /*************************************************************** |
1347 | * tlan_handle_tx_eof | |
1348 | * | |
1349 | * Returns: | |
1350 | * 1 | |
1351 | * Parms: | |
1352 | * dev Device assigned the IRQ that was | |
1353 | * raised. | |
1354 | * host_int The contents of the HOST_INT | |
1355 | * port. | |
1356 | * | |
1357 | * This function handles Tx EOF interrupts which are raised | |
1358 | * by the adapter when it has completed sending the | |
1359 | * contents of a buffer. If detemines which list/buffer | |
1360 | * was completed and resets it. If the buffer was the last | |
1361 | * in the channel (EOC), then the function checks to see if | |
1362 | * another buffer is ready to send, and if so, sends a Tx | |
1363 | * Go command. Finally, the driver activates/continues the | |
1364 | * activity LED. | |
1365 | * | |
1366 | **************************************************************/ | |
1367 | ||
1368 | static u32 tlan_handle_tx_eof(struct net_device *dev, u16 host_int) | |
1da177e4 | 1369 | { |
c659c38b | 1370 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 | 1371 | int eoc = 0; |
c659c38b | 1372 | struct tlan_list *head_list; |
1da177e4 LT |
1373 | dma_addr_t head_list_phys; |
1374 | u32 ack = 0; | |
c659c38b | 1375 | u16 tmp_c_stat; |
6aa20a22 | 1376 | |
c659c38b SA |
1377 | TLAN_DBG(TLAN_DEBUG_TX, |
1378 | "TRANSMIT: Handling TX EOF (Head=%d Tail=%d)\n", | |
1379 | priv->tx_head, priv->tx_tail); | |
1380 | head_list = priv->tx_list + priv->tx_head; | |
1da177e4 | 1381 | |
c659c38b SA |
1382 | while (((tmp_c_stat = head_list->c_stat) & TLAN_CSTAT_FRM_CMP) |
1383 | && (ack < 255)) { | |
1384 | struct sk_buff *skb = tlan_get_skb(head_list); | |
5eeabf51 | 1385 | |
1da177e4 | 1386 | ack++; |
c659c38b | 1387 | pci_unmap_single(priv->pci_dev, head_list->buffer[0].address, |
5eeabf51 SA |
1388 | max(skb->len, |
1389 | (unsigned int)TLAN_MIN_FRAME_SIZE), | |
1390 | PCI_DMA_TODEVICE); | |
1391 | dev_kfree_skb_any(skb); | |
1392 | head_list->buffer[8].address = 0; | |
1393 | head_list->buffer[9].address = 0; | |
6aa20a22 | 1394 | |
c659c38b | 1395 | if (tmp_c_stat & TLAN_CSTAT_EOC) |
1da177e4 | 1396 | eoc = 1; |
6aa20a22 | 1397 | |
c659c38b | 1398 | dev->stats.tx_bytes += head_list->frame_size; |
1da177e4 | 1399 | |
c659c38b | 1400 | head_list->c_stat = TLAN_CSTAT_UNUSED; |
6aa20a22 | 1401 | netif_start_queue(dev); |
c659c38b SA |
1402 | CIRC_INC(priv->tx_head, TLAN_NUM_TX_LISTS); |
1403 | head_list = priv->tx_list + priv->tx_head; | |
1da177e4 LT |
1404 | } |
1405 | ||
1406 | if (!ack) | |
50624aab JP |
1407 | netdev_info(dev, |
1408 | "Received interrupt for uncompleted TX frame\n"); | |
c659c38b SA |
1409 | |
1410 | if (eoc) { | |
1411 | TLAN_DBG(TLAN_DEBUG_TX, | |
1412 | "TRANSMIT: handling TX EOC (Head=%d Tail=%d)\n", | |
1413 | priv->tx_head, priv->tx_tail); | |
1414 | head_list = priv->tx_list + priv->tx_head; | |
1415 | head_list_phys = priv->tx_list_dma | |
1416 | + sizeof(struct tlan_list)*priv->tx_head; | |
f45437ef SA |
1417 | if ((head_list->c_stat & TLAN_CSTAT_READY) |
1418 | == TLAN_CSTAT_READY) { | |
c659c38b | 1419 | outl(head_list_phys, dev->base_addr + TLAN_CH_PARM); |
1da177e4 LT |
1420 | ack |= TLAN_HC_GO; |
1421 | } else { | |
c659c38b | 1422 | priv->tx_in_progress = 0; |
1da177e4 LT |
1423 | } |
1424 | } | |
6aa20a22 | 1425 | |
c659c38b SA |
1426 | if (priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED) { |
1427 | tlan_dio_write8(dev->base_addr, | |
1428 | TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT); | |
1429 | if (priv->timer.function == NULL) { | |
1430 | priv->timer.function = tlan_timer; | |
1431 | priv->timer.data = (unsigned long) dev; | |
1432 | priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY; | |
1433 | priv->timer_set_at = jiffies; | |
1434 | priv->timer_type = TLAN_TIMER_ACTIVITY; | |
1435 | add_timer(&priv->timer); | |
1436 | } else if (priv->timer_type == TLAN_TIMER_ACTIVITY) { | |
1437 | priv->timer_set_at = jiffies; | |
1da177e4 LT |
1438 | } |
1439 | } | |
1440 | ||
1441 | return ack; | |
1442 | ||
c659c38b | 1443 | } |
1da177e4 LT |
1444 | |
1445 | ||
1446 | ||
1447 | ||
c659c38b SA |
1448 | /*************************************************************** |
1449 | * TLan_HandleStatOverflow | |
1450 | * | |
1451 | * Returns: | |
1452 | * 1 | |
1453 | * Parms: | |
1454 | * dev Device assigned the IRQ that was | |
1455 | * raised. | |
1456 | * host_int The contents of the HOST_INT | |
1457 | * port. | |
1458 | * | |
1459 | * This function handles the Statistics Overflow interrupt | |
1460 | * which means that one or more of the TLAN statistics | |
1461 | * registers has reached 1/2 capacity and needs to be read. | |
1462 | * | |
1463 | **************************************************************/ | |
1da177e4 | 1464 | |
c659c38b | 1465 | static u32 tlan_handle_stat_overflow(struct net_device *dev, u16 host_int) |
1da177e4 | 1466 | { |
c659c38b | 1467 | tlan_read_and_clear_stats(dev, TLAN_RECORD); |
1da177e4 LT |
1468 | |
1469 | return 1; | |
1470 | ||
c659c38b SA |
1471 | } |
1472 | ||
1473 | ||
1474 | ||
1475 | ||
1476 | /*************************************************************** | |
1477 | * TLan_HandleRxEOF | |
1478 | * | |
1479 | * Returns: | |
1480 | * 1 | |
1481 | * Parms: | |
1482 | * dev Device assigned the IRQ that was | |
1483 | * raised. | |
1484 | * host_int The contents of the HOST_INT | |
1485 | * port. | |
1486 | * | |
1487 | * This function handles the Rx EOF interrupt which | |
1488 | * indicates a frame has been received by the adapter from | |
1489 | * the net and the frame has been transferred to memory. | |
1490 | * The function determines the bounce buffer the frame has | |
1491 | * been loaded into, creates a new sk_buff big enough to | |
1492 | * hold the frame, and sends it to protocol stack. It | |
1493 | * then resets the used buffer and appends it to the end | |
1494 | * of the list. If the frame was the last in the Rx | |
1495 | * channel (EOC), the function restarts the receive channel | |
1496 | * by sending an Rx Go command to the adapter. Then it | |
1497 | * activates/continues the activity LED. | |
1498 | * | |
1499 | **************************************************************/ | |
1500 | ||
1501 | static u32 tlan_handle_rx_eof(struct net_device *dev, u16 host_int) | |
1da177e4 | 1502 | { |
c659c38b | 1503 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
1504 | u32 ack = 0; |
1505 | int eoc = 0; | |
c659c38b | 1506 | struct tlan_list *head_list; |
1da177e4 | 1507 | struct sk_buff *skb; |
c659c38b SA |
1508 | struct tlan_list *tail_list; |
1509 | u16 tmp_c_stat; | |
1da177e4 LT |
1510 | dma_addr_t head_list_phys; |
1511 | ||
c659c38b SA |
1512 | TLAN_DBG(TLAN_DEBUG_RX, "RECEIVE: handling RX EOF (Head=%d Tail=%d)\n", |
1513 | priv->rx_head, priv->rx_tail); | |
1514 | head_list = priv->rx_list + priv->rx_head; | |
1515 | head_list_phys = | |
1516 | priv->rx_list_dma + sizeof(struct tlan_list)*priv->rx_head; | |
6aa20a22 | 1517 | |
c659c38b SA |
1518 | while (((tmp_c_stat = head_list->c_stat) & TLAN_CSTAT_FRM_CMP) |
1519 | && (ack < 255)) { | |
1520 | dma_addr_t frame_dma = head_list->buffer[0].address; | |
1521 | u32 frame_size = head_list->frame_size; | |
5eeabf51 SA |
1522 | struct sk_buff *new_skb; |
1523 | ||
1da177e4 | 1524 | ack++; |
c659c38b | 1525 | if (tmp_c_stat & TLAN_CSTAT_EOC) |
1da177e4 | 1526 | eoc = 1; |
6aa20a22 | 1527 | |
89d71a66 ED |
1528 | new_skb = netdev_alloc_skb_ip_align(dev, |
1529 | TLAN_MAX_FRAME_SIZE + 5); | |
c659c38b | 1530 | if (!new_skb) |
5eeabf51 | 1531 | goto drop_and_reuse; |
6aa20a22 | 1532 | |
c659c38b SA |
1533 | skb = tlan_get_skb(head_list); |
1534 | pci_unmap_single(priv->pci_dev, frame_dma, | |
5eeabf51 | 1535 | TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); |
c659c38b | 1536 | skb_put(skb, frame_size); |
1da177e4 | 1537 | |
c659c38b | 1538 | dev->stats.rx_bytes += frame_size; |
1da177e4 | 1539 | |
c659c38b SA |
1540 | skb->protocol = eth_type_trans(skb, dev); |
1541 | netif_rx(skb); | |
6aa20a22 | 1542 | |
c659c38b SA |
1543 | head_list->buffer[0].address = |
1544 | pci_map_single(priv->pci_dev, new_skb->data, | |
1545 | TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); | |
93e16847 | 1546 | |
c659c38b | 1547 | tlan_store_skb(head_list, new_skb); |
dfc2c0a6 | 1548 | drop_and_reuse: |
1da177e4 | 1549 | head_list->forward = 0; |
c659c38b SA |
1550 | head_list->c_stat = 0; |
1551 | tail_list = priv->rx_list + priv->rx_tail; | |
1da177e4 LT |
1552 | tail_list->forward = head_list_phys; |
1553 | ||
c659c38b SA |
1554 | CIRC_INC(priv->rx_head, TLAN_NUM_RX_LISTS); |
1555 | CIRC_INC(priv->rx_tail, TLAN_NUM_RX_LISTS); | |
1556 | head_list = priv->rx_list + priv->rx_head; | |
1557 | head_list_phys = priv->rx_list_dma | |
1558 | + sizeof(struct tlan_list)*priv->rx_head; | |
1da177e4 LT |
1559 | } |
1560 | ||
1561 | if (!ack) | |
50624aab JP |
1562 | netdev_info(dev, |
1563 | "Received interrupt for uncompleted RX frame\n"); | |
c659c38b SA |
1564 | |
1565 | ||
1566 | if (eoc) { | |
1567 | TLAN_DBG(TLAN_DEBUG_RX, | |
1568 | "RECEIVE: handling RX EOC (Head=%d Tail=%d)\n", | |
1569 | priv->rx_head, priv->rx_tail); | |
1570 | head_list = priv->rx_list + priv->rx_head; | |
1571 | head_list_phys = priv->rx_list_dma | |
1572 | + sizeof(struct tlan_list)*priv->rx_head; | |
1573 | outl(head_list_phys, dev->base_addr + TLAN_CH_PARM); | |
1da177e4 | 1574 | ack |= TLAN_HC_GO | TLAN_HC_RT; |
c659c38b | 1575 | priv->rx_eoc_count++; |
1da177e4 LT |
1576 | } |
1577 | ||
c659c38b SA |
1578 | if (priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED) { |
1579 | tlan_dio_write8(dev->base_addr, | |
1580 | TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT); | |
1581 | if (priv->timer.function == NULL) { | |
1582 | priv->timer.function = tlan_timer; | |
1da177e4 LT |
1583 | priv->timer.data = (unsigned long) dev; |
1584 | priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY; | |
c659c38b SA |
1585 | priv->timer_set_at = jiffies; |
1586 | priv->timer_type = TLAN_TIMER_ACTIVITY; | |
1da177e4 | 1587 | add_timer(&priv->timer); |
c659c38b SA |
1588 | } else if (priv->timer_type == TLAN_TIMER_ACTIVITY) { |
1589 | priv->timer_set_at = jiffies; | |
1da177e4 LT |
1590 | } |
1591 | } | |
1592 | ||
1da177e4 LT |
1593 | return ack; |
1594 | ||
c659c38b | 1595 | } |
1da177e4 LT |
1596 | |
1597 | ||
1598 | ||
1599 | ||
c659c38b SA |
1600 | /*************************************************************** |
1601 | * tlan_handle_dummy | |
1602 | * | |
1603 | * Returns: | |
1604 | * 1 | |
1605 | * Parms: | |
1606 | * dev Device assigned the IRQ that was | |
1607 | * raised. | |
1608 | * host_int The contents of the HOST_INT | |
1609 | * port. | |
1610 | * | |
1611 | * This function handles the Dummy interrupt, which is | |
1612 | * raised whenever a test interrupt is generated by setting | |
1613 | * the Req_Int bit of HOST_CMD to 1. | |
1614 | * | |
1615 | **************************************************************/ | |
1da177e4 | 1616 | |
c659c38b | 1617 | static u32 tlan_handle_dummy(struct net_device *dev, u16 host_int) |
1da177e4 | 1618 | { |
50624aab | 1619 | netdev_info(dev, "Test interrupt\n"); |
1da177e4 LT |
1620 | return 1; |
1621 | ||
c659c38b | 1622 | } |
1da177e4 LT |
1623 | |
1624 | ||
1625 | ||
1626 | ||
c659c38b SA |
1627 | /*************************************************************** |
1628 | * tlan_handle_tx_eoc | |
1629 | * | |
1630 | * Returns: | |
1631 | * 1 | |
1632 | * Parms: | |
1633 | * dev Device assigned the IRQ that was | |
1634 | * raised. | |
1635 | * host_int The contents of the HOST_INT | |
1636 | * port. | |
1637 | * | |
1638 | * This driver is structured to determine EOC occurrences by | |
1639 | * reading the CSTAT member of the list structure. Tx EOC | |
1640 | * interrupts are disabled via the DIO INTDIS register. | |
1641 | * However, TLAN chips before revision 3.0 didn't have this | |
1642 | * functionality, so process EOC events if this is the | |
1643 | * case. | |
1644 | * | |
1645 | **************************************************************/ | |
1da177e4 | 1646 | |
c659c38b | 1647 | static u32 tlan_handle_tx_eoc(struct net_device *dev, u16 host_int) |
1da177e4 | 1648 | { |
c659c38b SA |
1649 | struct tlan_priv *priv = netdev_priv(dev); |
1650 | struct tlan_list *head_list; | |
1da177e4 LT |
1651 | dma_addr_t head_list_phys; |
1652 | u32 ack = 1; | |
6aa20a22 | 1653 | |
1da177e4 | 1654 | host_int = 0; |
c659c38b SA |
1655 | if (priv->tlan_rev < 0x30) { |
1656 | TLAN_DBG(TLAN_DEBUG_TX, | |
1657 | "TRANSMIT: handling TX EOC (Head=%d Tail=%d) -- IRQ\n", | |
1658 | priv->tx_head, priv->tx_tail); | |
1659 | head_list = priv->tx_list + priv->tx_head; | |
1660 | head_list_phys = priv->tx_list_dma | |
1661 | + sizeof(struct tlan_list)*priv->tx_head; | |
f45437ef SA |
1662 | if ((head_list->c_stat & TLAN_CSTAT_READY) |
1663 | == TLAN_CSTAT_READY) { | |
1da177e4 | 1664 | netif_stop_queue(dev); |
c659c38b | 1665 | outl(head_list_phys, dev->base_addr + TLAN_CH_PARM); |
1da177e4 LT |
1666 | ack |= TLAN_HC_GO; |
1667 | } else { | |
c659c38b | 1668 | priv->tx_in_progress = 0; |
1da177e4 LT |
1669 | } |
1670 | } | |
1671 | ||
1672 | return ack; | |
1673 | ||
c659c38b | 1674 | } |
1da177e4 LT |
1675 | |
1676 | ||
1677 | ||
1678 | ||
c659c38b SA |
1679 | /*************************************************************** |
1680 | * tlan_handle_status_check | |
1681 | * | |
1682 | * Returns: | |
1683 | * 0 if Adapter check, 1 if Network Status check. | |
1684 | * Parms: | |
1685 | * dev Device assigned the IRQ that was | |
1686 | * raised. | |
1687 | * host_int The contents of the HOST_INT | |
1688 | * port. | |
1689 | * | |
1690 | * This function handles Adapter Check/Network Status | |
1691 | * interrupts generated by the adapter. It checks the | |
1692 | * vector in the HOST_INT register to determine if it is | |
1693 | * an Adapter Check interrupt. If so, it resets the | |
1694 | * adapter. Otherwise it clears the status registers | |
1695 | * and services the PHY. | |
1696 | * | |
1697 | **************************************************************/ | |
1da177e4 | 1698 | |
c659c38b | 1699 | static u32 tlan_handle_status_check(struct net_device *dev, u16 host_int) |
6aa20a22 | 1700 | { |
c659c38b | 1701 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
1702 | u32 ack; |
1703 | u32 error; | |
1704 | u8 net_sts; | |
1705 | u32 phy; | |
1706 | u16 tlphy_ctl; | |
1707 | u16 tlphy_sts; | |
6aa20a22 | 1708 | |
1da177e4 | 1709 | ack = 1; |
c659c38b SA |
1710 | if (host_int & TLAN_HI_IV_MASK) { |
1711 | netif_stop_queue(dev); | |
1712 | error = inl(dev->base_addr + TLAN_CH_PARM); | |
50624aab | 1713 | netdev_info(dev, "Adaptor Error = 0x%x\n", error); |
c659c38b SA |
1714 | tlan_read_and_clear_stats(dev, TLAN_RECORD); |
1715 | outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD); | |
1da177e4 LT |
1716 | |
1717 | schedule_work(&priv->tlan_tqueue); | |
1718 | ||
1719 | netif_wake_queue(dev); | |
1720 | ack = 0; | |
1721 | } else { | |
c659c38b SA |
1722 | TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Status Check\n", dev->name); |
1723 | phy = priv->phy[priv->phy_num]; | |
1724 | ||
1725 | net_sts = tlan_dio_read8(dev->base_addr, TLAN_NET_STS); | |
1726 | if (net_sts) { | |
1727 | tlan_dio_write8(dev->base_addr, TLAN_NET_STS, net_sts); | |
1728 | TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Net_Sts = %x\n", | |
1729 | dev->name, (unsigned) net_sts); | |
1da177e4 | 1730 | } |
c659c38b SA |
1731 | if ((net_sts & TLAN_NET_STS_MIRQ) && (priv->phy_num == 0)) { |
1732 | tlan_mii_read_reg(dev, phy, TLAN_TLPHY_STS, &tlphy_sts); | |
1733 | tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl); | |
1734 | if (!(tlphy_sts & TLAN_TS_POLOK) && | |
1735 | !(tlphy_ctl & TLAN_TC_SWAPOL)) { | |
1736 | tlphy_ctl |= TLAN_TC_SWAPOL; | |
1737 | tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, | |
1738 | tlphy_ctl); | |
1739 | } else if ((tlphy_sts & TLAN_TS_POLOK) && | |
1740 | (tlphy_ctl & TLAN_TC_SWAPOL)) { | |
1741 | tlphy_ctl &= ~TLAN_TC_SWAPOL; | |
1742 | tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, | |
1743 | tlphy_ctl); | |
1da177e4 | 1744 | } |
c659c38b SA |
1745 | |
1746 | if (debug) | |
1747 | tlan_phy_print(dev); | |
1da177e4 LT |
1748 | } |
1749 | } | |
1750 | ||
1751 | return ack; | |
1752 | ||
c659c38b | 1753 | } |
1da177e4 LT |
1754 | |
1755 | ||
1756 | ||
1757 | ||
c659c38b SA |
1758 | /*************************************************************** |
1759 | * tlan_handle_rx_eoc | |
1760 | * | |
1761 | * Returns: | |
1762 | * 1 | |
1763 | * Parms: | |
1764 | * dev Device assigned the IRQ that was | |
1765 | * raised. | |
1766 | * host_int The contents of the HOST_INT | |
1767 | * port. | |
1768 | * | |
1769 | * This driver is structured to determine EOC occurrences by | |
1770 | * reading the CSTAT member of the list structure. Rx EOC | |
1771 | * interrupts are disabled via the DIO INTDIS register. | |
1772 | * However, TLAN chips before revision 3.0 didn't have this | |
1773 | * CSTAT member or a INTDIS register, so if this chip is | |
1774 | * pre-3.0, process EOC interrupts normally. | |
1775 | * | |
1776 | **************************************************************/ | |
1da177e4 | 1777 | |
c659c38b | 1778 | static u32 tlan_handle_rx_eoc(struct net_device *dev, u16 host_int) |
1da177e4 | 1779 | { |
c659c38b | 1780 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
1781 | dma_addr_t head_list_phys; |
1782 | u32 ack = 1; | |
1783 | ||
c659c38b SA |
1784 | if (priv->tlan_rev < 0x30) { |
1785 | TLAN_DBG(TLAN_DEBUG_RX, | |
1786 | "RECEIVE: Handling RX EOC (head=%d tail=%d) -- IRQ\n", | |
1787 | priv->rx_head, priv->rx_tail); | |
1788 | head_list_phys = priv->rx_list_dma | |
1789 | + sizeof(struct tlan_list)*priv->rx_head; | |
1790 | outl(head_list_phys, dev->base_addr + TLAN_CH_PARM); | |
1da177e4 | 1791 | ack |= TLAN_HC_GO | TLAN_HC_RT; |
c659c38b | 1792 | priv->rx_eoc_count++; |
1da177e4 LT |
1793 | } |
1794 | ||
1795 | return ack; | |
1796 | ||
c659c38b | 1797 | } |
1da177e4 LT |
1798 | |
1799 | ||
1800 | ||
1801 | ||
1802 | /***************************************************************************** | |
1803 | ****************************************************************************** | |
1804 | ||
c659c38b | 1805 | ThunderLAN driver timer function |
1da177e4 LT |
1806 | |
1807 | ****************************************************************************** | |
1808 | *****************************************************************************/ | |
1809 | ||
1810 | ||
c659c38b SA |
1811 | /*************************************************************** |
1812 | * tlan_timer | |
1813 | * | |
1814 | * Returns: | |
1815 | * Nothing | |
1816 | * Parms: | |
1817 | * data A value given to add timer when | |
1818 | * add_timer was called. | |
1819 | * | |
1820 | * This function handles timed functionality for the | |
1821 | * TLAN driver. The two current timer uses are for | |
1822 | * delaying for autonegotionation and driving the ACT LED. | |
1823 | * - Autonegotiation requires being allowed about | |
1824 | * 2 1/2 seconds before attempting to transmit a | |
1825 | * packet. It would be a very bad thing to hang | |
1826 | * the kernel this long, so the driver doesn't | |
1827 | * allow transmission 'til after this time, for | |
1828 | * certain PHYs. It would be much nicer if all | |
1829 | * PHYs were interrupt-capable like the internal | |
1830 | * PHY. | |
1831 | * - The ACT LED, which shows adapter activity, is | |
1832 | * driven by the driver, and so must be left on | |
1833 | * for a short period to power up the LED so it | |
1834 | * can be seen. This delay can be changed by | |
1835 | * changing the TLAN_TIMER_ACT_DELAY in tlan.h, | |
1836 | * if desired. 100 ms produces a slightly | |
1837 | * sluggish response. | |
1838 | * | |
1839 | **************************************************************/ | |
1840 | ||
1841 | static void tlan_timer(unsigned long data) | |
1da177e4 LT |
1842 | { |
1843 | struct net_device *dev = (struct net_device *) data; | |
c659c38b | 1844 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
1845 | u32 elapsed; |
1846 | unsigned long flags = 0; | |
1847 | ||
1848 | priv->timer.function = NULL; | |
1849 | ||
c659c38b | 1850 | switch (priv->timer_type) { |
c659c38b SA |
1851 | case TLAN_TIMER_PHY_PDOWN: |
1852 | tlan_phy_power_down(dev); | |
1853 | break; | |
1854 | case TLAN_TIMER_PHY_PUP: | |
1855 | tlan_phy_power_up(dev); | |
1856 | break; | |
1857 | case TLAN_TIMER_PHY_RESET: | |
1858 | tlan_phy_reset(dev); | |
1859 | break; | |
1860 | case TLAN_TIMER_PHY_START_LINK: | |
1861 | tlan_phy_start_link(dev); | |
1862 | break; | |
1863 | case TLAN_TIMER_PHY_FINISH_AN: | |
1864 | tlan_phy_finish_auto_neg(dev); | |
1865 | break; | |
1866 | case TLAN_TIMER_FINISH_RESET: | |
1867 | tlan_finish_reset(dev); | |
1868 | break; | |
1869 | case TLAN_TIMER_ACTIVITY: | |
1870 | spin_lock_irqsave(&priv->lock, flags); | |
1871 | if (priv->timer.function == NULL) { | |
1872 | elapsed = jiffies - priv->timer_set_at; | |
1873 | if (elapsed >= TLAN_TIMER_ACT_DELAY) { | |
1874 | tlan_dio_write8(dev->base_addr, | |
1875 | TLAN_LED_REG, TLAN_LED_LINK); | |
1876 | } else { | |
1877 | priv->timer.function = tlan_timer; | |
1878 | priv->timer.expires = priv->timer_set_at | |
1879 | + TLAN_TIMER_ACT_DELAY; | |
1880 | spin_unlock_irqrestore(&priv->lock, flags); | |
1881 | add_timer(&priv->timer); | |
1882 | break; | |
1da177e4 | 1883 | } |
c659c38b SA |
1884 | } |
1885 | spin_unlock_irqrestore(&priv->lock, flags); | |
1886 | break; | |
1887 | default: | |
1888 | break; | |
1da177e4 LT |
1889 | } |
1890 | ||
c659c38b | 1891 | } |
1da177e4 LT |
1892 | |
1893 | ||
1da177e4 LT |
1894 | /***************************************************************************** |
1895 | ****************************************************************************** | |
1896 | ||
c659c38b | 1897 | ThunderLAN driver adapter related routines |
1da177e4 LT |
1898 | |
1899 | ****************************************************************************** | |
1900 | *****************************************************************************/ | |
1901 | ||
1902 | ||
c659c38b SA |
1903 | /*************************************************************** |
1904 | * tlan_reset_lists | |
1905 | * | |
1906 | * Returns: | |
1907 | * Nothing | |
1908 | * Parms: | |
1909 | * dev The device structure with the list | |
1910 | * stuctures to be reset. | |
1911 | * | |
1912 | * This routine sets the variables associated with managing | |
1913 | * the TLAN lists to their initial values. | |
1914 | * | |
1915 | **************************************************************/ | |
1916 | ||
1917 | static void tlan_reset_lists(struct net_device *dev) | |
1da177e4 | 1918 | { |
c659c38b | 1919 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 | 1920 | int i; |
c659c38b | 1921 | struct tlan_list *list; |
1da177e4 LT |
1922 | dma_addr_t list_phys; |
1923 | struct sk_buff *skb; | |
1da177e4 | 1924 | |
c659c38b SA |
1925 | priv->tx_head = 0; |
1926 | priv->tx_tail = 0; | |
1927 | for (i = 0; i < TLAN_NUM_TX_LISTS; i++) { | |
1928 | list = priv->tx_list + i; | |
1929 | list->c_stat = TLAN_CSTAT_UNUSED; | |
5eeabf51 | 1930 | list->buffer[0].address = 0; |
1da177e4 LT |
1931 | list->buffer[2].count = 0; |
1932 | list->buffer[2].address = 0; | |
1933 | list->buffer[8].address = 0; | |
1934 | list->buffer[9].address = 0; | |
1935 | } | |
1936 | ||
c659c38b SA |
1937 | priv->rx_head = 0; |
1938 | priv->rx_tail = TLAN_NUM_RX_LISTS - 1; | |
1939 | for (i = 0; i < TLAN_NUM_RX_LISTS; i++) { | |
1940 | list = priv->rx_list + i; | |
1941 | list_phys = priv->rx_list_dma + sizeof(struct tlan_list)*i; | |
1942 | list->c_stat = TLAN_CSTAT_READY; | |
1943 | list->frame_size = TLAN_MAX_FRAME_SIZE; | |
1da177e4 | 1944 | list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER; |
89d71a66 | 1945 | skb = netdev_alloc_skb_ip_align(dev, TLAN_MAX_FRAME_SIZE + 5); |
720a43ef | 1946 | if (!skb) |
5eeabf51 | 1947 | break; |
5eeabf51 | 1948 | |
c659c38b | 1949 | list->buffer[0].address = pci_map_single(priv->pci_dev, |
5eeabf51 SA |
1950 | skb->data, |
1951 | TLAN_MAX_FRAME_SIZE, | |
1952 | PCI_DMA_FROMDEVICE); | |
c659c38b | 1953 | tlan_store_skb(list, skb); |
1da177e4 LT |
1954 | list->buffer[1].count = 0; |
1955 | list->buffer[1].address = 0; | |
c659c38b | 1956 | list->forward = list_phys + sizeof(struct tlan_list); |
9ded65a1 SH |
1957 | } |
1958 | ||
1959 | /* in case ran out of memory early, clear bits */ | |
1960 | while (i < TLAN_NUM_RX_LISTS) { | |
c659c38b | 1961 | tlan_store_skb(priv->rx_list + i, NULL); |
9ded65a1 | 1962 | ++i; |
1da177e4 | 1963 | } |
9ded65a1 | 1964 | list->forward = 0; |
1da177e4 | 1965 | |
c659c38b | 1966 | } |
1da177e4 LT |
1967 | |
1968 | ||
c659c38b | 1969 | static void tlan_free_lists(struct net_device *dev) |
1da177e4 | 1970 | { |
c659c38b | 1971 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 | 1972 | int i; |
c659c38b | 1973 | struct tlan_list *list; |
1da177e4 LT |
1974 | struct sk_buff *skb; |
1975 | ||
c659c38b SA |
1976 | for (i = 0; i < TLAN_NUM_TX_LISTS; i++) { |
1977 | list = priv->tx_list + i; | |
1978 | skb = tlan_get_skb(list); | |
1979 | if (skb) { | |
5eeabf51 | 1980 | pci_unmap_single( |
c659c38b | 1981 | priv->pci_dev, |
5eeabf51 SA |
1982 | list->buffer[0].address, |
1983 | max(skb->len, | |
1984 | (unsigned int)TLAN_MIN_FRAME_SIZE), | |
1985 | PCI_DMA_TODEVICE); | |
c659c38b | 1986 | dev_kfree_skb_any(skb); |
5eeabf51 SA |
1987 | list->buffer[8].address = 0; |
1988 | list->buffer[9].address = 0; | |
1da177e4 | 1989 | } |
5eeabf51 | 1990 | } |
1da177e4 | 1991 | |
c659c38b SA |
1992 | for (i = 0; i < TLAN_NUM_RX_LISTS; i++) { |
1993 | list = priv->rx_list + i; | |
1994 | skb = tlan_get_skb(list); | |
1995 | if (skb) { | |
1996 | pci_unmap_single(priv->pci_dev, | |
5eeabf51 SA |
1997 | list->buffer[0].address, |
1998 | TLAN_MAX_FRAME_SIZE, | |
1999 | PCI_DMA_FROMDEVICE); | |
c659c38b | 2000 | dev_kfree_skb_any(skb); |
5eeabf51 SA |
2001 | list->buffer[8].address = 0; |
2002 | list->buffer[9].address = 0; | |
1da177e4 LT |
2003 | } |
2004 | } | |
c659c38b | 2005 | } |
1da177e4 LT |
2006 | |
2007 | ||
2008 | ||
2009 | ||
c659c38b SA |
2010 | /*************************************************************** |
2011 | * tlan_print_dio | |
2012 | * | |
2013 | * Returns: | |
2014 | * Nothing | |
2015 | * Parms: | |
2016 | * io_base Base IO port of the device of | |
2017 | * which to print DIO registers. | |
2018 | * | |
2019 | * This function prints out all the internal (DIO) | |
2020 | * registers of a TLAN chip. | |
2021 | * | |
2022 | **************************************************************/ | |
1da177e4 | 2023 | |
c659c38b | 2024 | static void tlan_print_dio(u16 io_base) |
1da177e4 LT |
2025 | { |
2026 | u32 data0, data1; | |
2027 | int i; | |
2028 | ||
50624aab JP |
2029 | pr_info("Contents of internal registers for io base 0x%04hx\n", |
2030 | io_base); | |
2031 | pr_info("Off. +0 +4\n"); | |
c659c38b SA |
2032 | for (i = 0; i < 0x4C; i += 8) { |
2033 | data0 = tlan_dio_read32(io_base, i); | |
2034 | data1 = tlan_dio_read32(io_base, i + 0x4); | |
50624aab | 2035 | pr_info("0x%02x 0x%08x 0x%08x\n", i, data0, data1); |
1da177e4 LT |
2036 | } |
2037 | ||
c659c38b | 2038 | } |
1da177e4 LT |
2039 | |
2040 | ||
2041 | ||
2042 | ||
c659c38b SA |
2043 | /*************************************************************** |
2044 | * TLan_PrintList | |
2045 | * | |
2046 | * Returns: | |
2047 | * Nothing | |
2048 | * Parms: | |
2049 | * list A pointer to the struct tlan_list structure to | |
2050 | * be printed. | |
2051 | * type A string to designate type of list, | |
2052 | * "Rx" or "Tx". | |
2053 | * num The index of the list. | |
2054 | * | |
2055 | * This function prints out the contents of the list | |
2056 | * pointed to by the list parameter. | |
2057 | * | |
2058 | **************************************************************/ | |
1da177e4 | 2059 | |
c659c38b | 2060 | static void tlan_print_list(struct tlan_list *list, char *type, int num) |
1da177e4 LT |
2061 | { |
2062 | int i; | |
2063 | ||
50624aab JP |
2064 | pr_info("%s List %d at %p\n", type, num, list); |
2065 | pr_info(" Forward = 0x%08x\n", list->forward); | |
2066 | pr_info(" CSTAT = 0x%04hx\n", list->c_stat); | |
2067 | pr_info(" Frame Size = 0x%04hx\n", list->frame_size); | |
c659c38b SA |
2068 | /* for (i = 0; i < 10; i++) { */ |
2069 | for (i = 0; i < 2; i++) { | |
50624aab JP |
2070 | pr_info(" Buffer[%d].count, addr = 0x%08x, 0x%08x\n", |
2071 | i, list->buffer[i].count, list->buffer[i].address); | |
1da177e4 LT |
2072 | } |
2073 | ||
c659c38b | 2074 | } |
1da177e4 LT |
2075 | |
2076 | ||
2077 | ||
2078 | ||
c659c38b SA |
2079 | /*************************************************************** |
2080 | * tlan_read_and_clear_stats | |
2081 | * | |
2082 | * Returns: | |
2083 | * Nothing | |
2084 | * Parms: | |
2085 | * dev Pointer to device structure of adapter | |
2086 | * to which to read stats. | |
2087 | * record Flag indicating whether to add | |
2088 | * | |
2089 | * This functions reads all the internal status registers | |
2090 | * of the TLAN chip, which clears them as a side effect. | |
2091 | * It then either adds the values to the device's status | |
2092 | * struct, or discards them, depending on whether record | |
2093 | * is TLAN_RECORD (!=0) or TLAN_IGNORE (==0). | |
2094 | * | |
2095 | **************************************************************/ | |
1da177e4 | 2096 | |
c659c38b | 2097 | static void tlan_read_and_clear_stats(struct net_device *dev, int record) |
1da177e4 | 2098 | { |
1da177e4 LT |
2099 | u32 tx_good, tx_under; |
2100 | u32 rx_good, rx_over; | |
2101 | u32 def_tx, crc, code; | |
2102 | u32 multi_col, single_col; | |
2103 | u32 excess_col, late_col, loss; | |
2104 | ||
c659c38b SA |
2105 | outw(TLAN_GOOD_TX_FRMS, dev->base_addr + TLAN_DIO_ADR); |
2106 | tx_good = inb(dev->base_addr + TLAN_DIO_DATA); | |
2107 | tx_good += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8; | |
2108 | tx_good += inb(dev->base_addr + TLAN_DIO_DATA + 2) << 16; | |
2109 | tx_under = inb(dev->base_addr + TLAN_DIO_DATA + 3); | |
2110 | ||
2111 | outw(TLAN_GOOD_RX_FRMS, dev->base_addr + TLAN_DIO_ADR); | |
2112 | rx_good = inb(dev->base_addr + TLAN_DIO_DATA); | |
2113 | rx_good += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8; | |
2114 | rx_good += inb(dev->base_addr + TLAN_DIO_DATA + 2) << 16; | |
2115 | rx_over = inb(dev->base_addr + TLAN_DIO_DATA + 3); | |
2116 | ||
2117 | outw(TLAN_DEFERRED_TX, dev->base_addr + TLAN_DIO_ADR); | |
2118 | def_tx = inb(dev->base_addr + TLAN_DIO_DATA); | |
2119 | def_tx += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8; | |
2120 | crc = inb(dev->base_addr + TLAN_DIO_DATA + 2); | |
2121 | code = inb(dev->base_addr + TLAN_DIO_DATA + 3); | |
2122 | ||
2123 | outw(TLAN_MULTICOL_FRMS, dev->base_addr + TLAN_DIO_ADR); | |
2124 | multi_col = inb(dev->base_addr + TLAN_DIO_DATA); | |
2125 | multi_col += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8; | |
2126 | single_col = inb(dev->base_addr + TLAN_DIO_DATA + 2); | |
2127 | single_col += inb(dev->base_addr + TLAN_DIO_DATA + 3) << 8; | |
2128 | ||
2129 | outw(TLAN_EXCESSCOL_FRMS, dev->base_addr + TLAN_DIO_ADR); | |
2130 | excess_col = inb(dev->base_addr + TLAN_DIO_DATA); | |
2131 | late_col = inb(dev->base_addr + TLAN_DIO_DATA + 1); | |
2132 | loss = inb(dev->base_addr + TLAN_DIO_DATA + 2); | |
2133 | ||
2134 | if (record) { | |
f8f31544 SH |
2135 | dev->stats.rx_packets += rx_good; |
2136 | dev->stats.rx_errors += rx_over + crc + code; | |
2137 | dev->stats.tx_packets += tx_good; | |
2138 | dev->stats.tx_errors += tx_under + loss; | |
c659c38b SA |
2139 | dev->stats.collisions += multi_col |
2140 | + single_col + excess_col + late_col; | |
f8f31544 SH |
2141 | |
2142 | dev->stats.rx_over_errors += rx_over; | |
2143 | dev->stats.rx_crc_errors += crc; | |
2144 | dev->stats.rx_frame_errors += code; | |
2145 | ||
2146 | dev->stats.tx_aborted_errors += tx_under; | |
2147 | dev->stats.tx_carrier_errors += loss; | |
1da177e4 | 2148 | } |
6aa20a22 | 2149 | |
c659c38b | 2150 | } |
1da177e4 LT |
2151 | |
2152 | ||
2153 | ||
2154 | ||
c659c38b SA |
2155 | /*************************************************************** |
2156 | * TLan_Reset | |
2157 | * | |
2158 | * Returns: | |
2159 | * 0 | |
2160 | * Parms: | |
2161 | * dev Pointer to device structure of adapter | |
2162 | * to be reset. | |
2163 | * | |
2164 | * This function resets the adapter and it's physical | |
2165 | * device. See Chap. 3, pp. 9-10 of the "ThunderLAN | |
2166 | * Programmer's Guide" for details. The routine tries to | |
2167 | * implement what is detailed there, though adjustments | |
2168 | * have been made. | |
2169 | * | |
2170 | **************************************************************/ | |
1da177e4 | 2171 | |
98e0f521 | 2172 | static void |
c659c38b | 2173 | tlan_reset_adapter(struct net_device *dev) |
1da177e4 | 2174 | { |
c659c38b | 2175 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
2176 | int i; |
2177 | u32 addr; | |
2178 | u32 data; | |
2179 | u8 data8; | |
2180 | ||
c659c38b SA |
2181 | priv->tlan_full_duplex = false; |
2182 | priv->phy_online = 0; | |
1da177e4 LT |
2183 | netif_carrier_off(dev); |
2184 | ||
2185 | /* 1. Assert reset bit. */ | |
2186 | ||
2187 | data = inl(dev->base_addr + TLAN_HOST_CMD); | |
2188 | data |= TLAN_HC_AD_RST; | |
2189 | outl(data, dev->base_addr + TLAN_HOST_CMD); | |
6aa20a22 | 2190 | |
1da177e4 LT |
2191 | udelay(1000); |
2192 | ||
c659c38b | 2193 | /* 2. Turn off interrupts. (Probably isn't necessary) */ |
1da177e4 LT |
2194 | |
2195 | data = inl(dev->base_addr + TLAN_HOST_CMD); | |
2196 | data |= TLAN_HC_INT_OFF; | |
2197 | outl(data, dev->base_addr + TLAN_HOST_CMD); | |
2198 | ||
2199 | /* 3. Clear AREGs and HASHs. */ | |
2200 | ||
c659c38b SA |
2201 | for (i = TLAN_AREG_0; i <= TLAN_HASH_2; i += 4) |
2202 | tlan_dio_write32(dev->base_addr, (u16) i, 0); | |
1da177e4 LT |
2203 | |
2204 | /* 4. Setup NetConfig register. */ | |
2205 | ||
2206 | data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN; | |
c659c38b | 2207 | tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, (u16) data); |
1da177e4 LT |
2208 | |
2209 | /* 5. Load Ld_Tmr and Ld_Thr in HOST_CMD. */ | |
2210 | ||
c659c38b SA |
2211 | outl(TLAN_HC_LD_TMR | 0x3f, dev->base_addr + TLAN_HOST_CMD); |
2212 | outl(TLAN_HC_LD_THR | 0x9, dev->base_addr + TLAN_HOST_CMD); | |
1da177e4 LT |
2213 | |
2214 | /* 6. Unreset the MII by setting NMRST (in NetSio) to 1. */ | |
2215 | ||
c659c38b | 2216 | outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR); |
1da177e4 | 2217 | addr = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO; |
c659c38b | 2218 | tlan_set_bit(TLAN_NET_SIO_NMRST, addr); |
1da177e4 LT |
2219 | |
2220 | /* 7. Setup the remaining registers. */ | |
2221 | ||
c659c38b | 2222 | if (priv->tlan_rev >= 0x30) { |
1da177e4 | 2223 | data8 = TLAN_ID_TX_EOC | TLAN_ID_RX_EOC; |
c659c38b | 2224 | tlan_dio_write8(dev->base_addr, TLAN_INT_DIS, data8); |
1da177e4 | 2225 | } |
c659c38b | 2226 | tlan_phy_detect(dev); |
1da177e4 | 2227 | data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN; |
6aa20a22 | 2228 | |
c659c38b | 2229 | if (priv->adapter->flags & TLAN_ADAPTER_BIT_RATE_PHY) { |
1da177e4 | 2230 | data |= TLAN_NET_CFG_BIT; |
c659c38b SA |
2231 | if (priv->aui == 1) { |
2232 | tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x0a); | |
2233 | } else if (priv->duplex == TLAN_DUPLEX_FULL) { | |
2234 | tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x00); | |
2235 | priv->tlan_full_duplex = true; | |
1da177e4 | 2236 | } else { |
c659c38b | 2237 | tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x08); |
1da177e4 LT |
2238 | } |
2239 | } | |
2240 | ||
7a72eddc OZ |
2241 | /* don't power down internal PHY if we're going to use it */ |
2242 | if (priv->phy_num == 0 || | |
2243 | (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10)) | |
1da177e4 | 2244 | data |= TLAN_NET_CFG_PHY_EN; |
c659c38b | 2245 | tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, (u16) data); |
1da177e4 | 2246 | |
c659c38b SA |
2247 | if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) |
2248 | tlan_finish_reset(dev); | |
2249 | else | |
2250 | tlan_phy_power_down(dev); | |
1da177e4 | 2251 | |
c659c38b | 2252 | } |
1da177e4 LT |
2253 | |
2254 | ||
2255 | ||
2256 | ||
98e0f521 | 2257 | static void |
c659c38b | 2258 | tlan_finish_reset(struct net_device *dev) |
1da177e4 | 2259 | { |
c659c38b | 2260 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
2261 | u8 data; |
2262 | u32 phy; | |
2263 | u8 sio; | |
2264 | u16 status; | |
2265 | u16 partner; | |
2266 | u16 tlphy_ctl; | |
c659c38b | 2267 | u16 tlphy_par; |
1da177e4 | 2268 | u16 tlphy_id1, tlphy_id2; |
c659c38b | 2269 | int i; |
1da177e4 | 2270 | |
c659c38b | 2271 | phy = priv->phy[priv->phy_num]; |
1da177e4 LT |
2272 | |
2273 | data = TLAN_NET_CMD_NRESET | TLAN_NET_CMD_NWRAP; | |
c659c38b | 2274 | if (priv->tlan_full_duplex) |
1da177e4 | 2275 | data |= TLAN_NET_CMD_DUPLEX; |
c659c38b | 2276 | tlan_dio_write8(dev->base_addr, TLAN_NET_CMD, data); |
6aa20a22 | 2277 | data = TLAN_NET_MASK_MASK4 | TLAN_NET_MASK_MASK5; |
c659c38b | 2278 | if (priv->phy_num == 0) |
6aa20a22 | 2279 | data |= TLAN_NET_MASK_MASK7; |
c659c38b SA |
2280 | tlan_dio_write8(dev->base_addr, TLAN_NET_MASK, data); |
2281 | tlan_dio_write16(dev->base_addr, TLAN_MAX_RX, ((1536)+7)&~7); | |
2282 | tlan_mii_read_reg(dev, phy, MII_GEN_ID_HI, &tlphy_id1); | |
2283 | tlan_mii_read_reg(dev, phy, MII_GEN_ID_LO, &tlphy_id2); | |
6aa20a22 | 2284 | |
c659c38b SA |
2285 | if ((priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) || |
2286 | (priv->aui)) { | |
1da177e4 | 2287 | status = MII_GS_LINK; |
50624aab | 2288 | netdev_info(dev, "Link forced\n"); |
1da177e4 | 2289 | } else { |
c659c38b SA |
2290 | tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status); |
2291 | udelay(1000); | |
2292 | tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status); | |
c0a87c22 OZ |
2293 | if (status & MII_GS_LINK) { |
2294 | /* We only support link info on Nat.Sem. PHY's */ | |
2295 | if ((tlphy_id1 == NAT_SEM_ID1) && | |
2296 | (tlphy_id2 == NAT_SEM_ID2)) { | |
2297 | tlan_mii_read_reg(dev, phy, MII_AN_LPA, | |
2298 | &partner); | |
2299 | tlan_mii_read_reg(dev, phy, TLAN_TLPHY_PAR, | |
2300 | &tlphy_par); | |
2301 | ||
2302 | netdev_info(dev, | |
2303 | "Link active, %s %uMbps %s-Duplex\n", | |
2304 | !(tlphy_par & TLAN_PHY_AN_EN_STAT) | |
2305 | ? "forced" : "Autonegotiation enabled,", | |
2306 | tlphy_par & TLAN_PHY_SPEED_100 | |
2307 | ? 100 : 10, | |
2308 | tlphy_par & TLAN_PHY_DUPLEX_FULL | |
2309 | ? "Full" : "Half"); | |
2310 | ||
2311 | if (tlphy_par & TLAN_PHY_AN_EN_STAT) { | |
2312 | netdev_info(dev, "Partner capability:"); | |
2313 | for (i = 5; i < 10; i++) | |
2314 | if (partner & (1 << i)) | |
2315 | pr_cont(" %s", | |
2316 | media[i-5]); | |
2317 | pr_cont("\n"); | |
2318 | } | |
2319 | } else | |
2320 | netdev_info(dev, "Link active\n"); | |
2321 | /* Enabling link beat monitoring */ | |
2322 | priv->media_timer.function = tlan_phy_monitor; | |
2323 | priv->media_timer.data = (unsigned long) dev; | |
2324 | priv->media_timer.expires = jiffies + HZ; | |
2325 | add_timer(&priv->media_timer); | |
1da177e4 LT |
2326 | } |
2327 | } | |
2328 | ||
c659c38b SA |
2329 | if (priv->phy_num == 0) { |
2330 | tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl); | |
2331 | tlphy_ctl |= TLAN_TC_INTEN; | |
2332 | tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, tlphy_ctl); | |
2333 | sio = tlan_dio_read8(dev->base_addr, TLAN_NET_SIO); | |
2334 | sio |= TLAN_NET_SIO_MINTEN; | |
2335 | tlan_dio_write8(dev->base_addr, TLAN_NET_SIO, sio); | |
2336 | } | |
2337 | ||
2338 | if (status & MII_GS_LINK) { | |
2339 | tlan_set_mac(dev, 0, dev->dev_addr); | |
2340 | priv->phy_online = 1; | |
2341 | outb((TLAN_HC_INT_ON >> 8), dev->base_addr + TLAN_HOST_CMD + 1); | |
2342 | if (debug >= 1 && debug != TLAN_DEBUG_PROBE) | |
2343 | outb((TLAN_HC_REQ_INT >> 8), | |
2344 | dev->base_addr + TLAN_HOST_CMD + 1); | |
2345 | outl(priv->rx_list_dma, dev->base_addr + TLAN_CH_PARM); | |
2346 | outl(TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD); | |
c0a87c22 | 2347 | tlan_dio_write8(dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK); |
1da177e4 LT |
2348 | netif_carrier_on(dev); |
2349 | } else { | |
50624aab | 2350 | netdev_info(dev, "Link inactive, will retry in 10 secs...\n"); |
c659c38b | 2351 | tlan_set_timer(dev, (10*HZ), TLAN_TIMER_FINISH_RESET); |
1da177e4 LT |
2352 | return; |
2353 | } | |
c659c38b | 2354 | tlan_set_multicast_list(dev); |
1da177e4 | 2355 | |
c659c38b | 2356 | } |
1da177e4 LT |
2357 | |
2358 | ||
2359 | ||
2360 | ||
c659c38b SA |
2361 | /*************************************************************** |
2362 | * tlan_set_mac | |
2363 | * | |
2364 | * Returns: | |
2365 | * Nothing | |
2366 | * Parms: | |
2367 | * dev Pointer to device structure of adapter | |
2368 | * on which to change the AREG. | |
2369 | * areg The AREG to set the address in (0 - 3). | |
2370 | * mac A pointer to an array of chars. Each | |
2371 | * element stores one byte of the address. | |
2372 | * IE, it isn't in ascii. | |
2373 | * | |
2374 | * This function transfers a MAC address to one of the | |
2375 | * TLAN AREGs (address registers). The TLAN chip locks | |
2376 | * the register on writing to offset 0 and unlocks the | |
2377 | * register after writing to offset 5. If NULL is passed | |
2378 | * in mac, then the AREG is filled with 0's. | |
2379 | * | |
2380 | **************************************************************/ | |
1da177e4 | 2381 | |
c659c38b | 2382 | static void tlan_set_mac(struct net_device *dev, int areg, char *mac) |
1da177e4 LT |
2383 | { |
2384 | int i; | |
6aa20a22 | 2385 | |
1da177e4 LT |
2386 | areg *= 6; |
2387 | ||
c659c38b SA |
2388 | if (mac != NULL) { |
2389 | for (i = 0; i < 6; i++) | |
2390 | tlan_dio_write8(dev->base_addr, | |
2391 | TLAN_AREG_0 + areg + i, mac[i]); | |
1da177e4 | 2392 | } else { |
c659c38b SA |
2393 | for (i = 0; i < 6; i++) |
2394 | tlan_dio_write8(dev->base_addr, | |
2395 | TLAN_AREG_0 + areg + i, 0); | |
1da177e4 LT |
2396 | } |
2397 | ||
c659c38b | 2398 | } |
1da177e4 LT |
2399 | |
2400 | ||
2401 | ||
2402 | ||
2403 | /***************************************************************************** | |
2404 | ****************************************************************************** | |
2405 | ||
c659c38b | 2406 | ThunderLAN driver PHY layer routines |
1da177e4 LT |
2407 | |
2408 | ****************************************************************************** | |
2409 | *****************************************************************************/ | |
2410 | ||
2411 | ||
2412 | ||
c659c38b SA |
2413 | /********************************************************************* |
2414 | * tlan_phy_print | |
2415 | * | |
2416 | * Returns: | |
2417 | * Nothing | |
2418 | * Parms: | |
2419 | * dev A pointer to the device structure of the | |
2420 | * TLAN device having the PHYs to be detailed. | |
2421 | * | |
2422 | * This function prints the registers a PHY (aka transceiver). | |
2423 | * | |
2424 | ********************************************************************/ | |
1da177e4 | 2425 | |
c659c38b | 2426 | static void tlan_phy_print(struct net_device *dev) |
1da177e4 | 2427 | { |
c659c38b | 2428 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
2429 | u16 i, data0, data1, data2, data3, phy; |
2430 | ||
c659c38b SA |
2431 | phy = priv->phy[priv->phy_num]; |
2432 | ||
2433 | if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) { | |
50624aab | 2434 | netdev_info(dev, "Unmanaged PHY\n"); |
c659c38b | 2435 | } else if (phy <= TLAN_PHY_MAX_ADDR) { |
50624aab JP |
2436 | netdev_info(dev, "PHY 0x%02x\n", phy); |
2437 | pr_info(" Off. +0 +1 +2 +3\n"); | |
c659c38b | 2438 | for (i = 0; i < 0x20; i += 4) { |
c659c38b | 2439 | tlan_mii_read_reg(dev, phy, i, &data0); |
c659c38b | 2440 | tlan_mii_read_reg(dev, phy, i + 1, &data1); |
c659c38b | 2441 | tlan_mii_read_reg(dev, phy, i + 2, &data2); |
c659c38b | 2442 | tlan_mii_read_reg(dev, phy, i + 3, &data3); |
50624aab JP |
2443 | pr_info(" 0x%02x 0x%04hx 0x%04hx 0x%04hx 0x%04hx\n", |
2444 | i, data0, data1, data2, data3); | |
1da177e4 LT |
2445 | } |
2446 | } else { | |
50624aab | 2447 | netdev_info(dev, "Invalid PHY\n"); |
1da177e4 LT |
2448 | } |
2449 | ||
c659c38b | 2450 | } |
1da177e4 LT |
2451 | |
2452 | ||
2453 | ||
2454 | ||
c659c38b SA |
2455 | /********************************************************************* |
2456 | * tlan_phy_detect | |
2457 | * | |
2458 | * Returns: | |
2459 | * Nothing | |
2460 | * Parms: | |
2461 | * dev A pointer to the device structure of the adapter | |
2462 | * for which the PHY needs determined. | |
2463 | * | |
2464 | * So far I've found that adapters which have external PHYs | |
2465 | * may also use the internal PHY for part of the functionality. | |
2466 | * (eg, AUI/Thinnet). This function finds out if this TLAN | |
2467 | * chip has an internal PHY, and then finds the first external | |
2468 | * PHY (starting from address 0) if it exists). | |
2469 | * | |
2470 | ********************************************************************/ | |
1da177e4 | 2471 | |
c659c38b | 2472 | static void tlan_phy_detect(struct net_device *dev) |
1da177e4 | 2473 | { |
c659c38b | 2474 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
2475 | u16 control; |
2476 | u16 hi; | |
2477 | u16 lo; | |
2478 | u32 phy; | |
2479 | ||
c659c38b SA |
2480 | if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) { |
2481 | priv->phy_num = 0xffff; | |
1da177e4 LT |
2482 | return; |
2483 | } | |
2484 | ||
c659c38b | 2485 | tlan_mii_read_reg(dev, TLAN_PHY_MAX_ADDR, MII_GEN_ID_HI, &hi); |
6aa20a22 | 2486 | |
c659c38b | 2487 | if (hi != 0xffff) |
1da177e4 | 2488 | priv->phy[0] = TLAN_PHY_MAX_ADDR; |
c659c38b | 2489 | else |
1da177e4 | 2490 | priv->phy[0] = TLAN_PHY_NONE; |
1da177e4 LT |
2491 | |
2492 | priv->phy[1] = TLAN_PHY_NONE; | |
c659c38b SA |
2493 | for (phy = 0; phy <= TLAN_PHY_MAX_ADDR; phy++) { |
2494 | tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &control); | |
2495 | tlan_mii_read_reg(dev, phy, MII_GEN_ID_HI, &hi); | |
2496 | tlan_mii_read_reg(dev, phy, MII_GEN_ID_LO, &lo); | |
2497 | if ((control != 0xffff) || | |
2498 | (hi != 0xffff) || (lo != 0xffff)) { | |
2499 | TLAN_DBG(TLAN_DEBUG_GNRL, | |
2500 | "PHY found at %02x %04x %04x %04x\n", | |
2501 | phy, control, hi, lo); | |
2502 | if ((priv->phy[1] == TLAN_PHY_NONE) && | |
2503 | (phy != TLAN_PHY_MAX_ADDR)) { | |
1da177e4 LT |
2504 | priv->phy[1] = phy; |
2505 | } | |
2506 | } | |
2507 | } | |
2508 | ||
c659c38b SA |
2509 | if (priv->phy[1] != TLAN_PHY_NONE) |
2510 | priv->phy_num = 1; | |
2511 | else if (priv->phy[0] != TLAN_PHY_NONE) | |
2512 | priv->phy_num = 0; | |
2513 | else | |
50624aab | 2514 | netdev_info(dev, "Cannot initialize device, no PHY was found!\n"); |
1da177e4 | 2515 | |
c659c38b | 2516 | } |
1da177e4 LT |
2517 | |
2518 | ||
2519 | ||
2520 | ||
c659c38b | 2521 | static void tlan_phy_power_down(struct net_device *dev) |
1da177e4 | 2522 | { |
c659c38b | 2523 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
2524 | u16 value; |
2525 | ||
c659c38b | 2526 | TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Powering down PHY(s).\n", dev->name); |
1da177e4 | 2527 | value = MII_GC_PDOWN | MII_GC_LOOPBK | MII_GC_ISOLATE; |
c659c38b SA |
2528 | tlan_mii_sync(dev->base_addr); |
2529 | tlan_mii_write_reg(dev, priv->phy[priv->phy_num], MII_GEN_CTL, value); | |
9162e7e5 OZ |
2530 | if ((priv->phy_num == 0) && (priv->phy[1] != TLAN_PHY_NONE)) { |
2531 | /* if using internal PHY, the external PHY must be powered on */ | |
2532 | if (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10) | |
2533 | value = MII_GC_ISOLATE; /* just isolate it from MII */ | |
c659c38b SA |
2534 | tlan_mii_sync(dev->base_addr); |
2535 | tlan_mii_write_reg(dev, priv->phy[1], MII_GEN_CTL, value); | |
1da177e4 LT |
2536 | } |
2537 | ||
2538 | /* Wait for 50 ms and powerup | |
2539 | * This is abitrary. It is intended to make sure the | |
2540 | * transceiver settles. | |
2541 | */ | |
51fd9471 | 2542 | tlan_set_timer(dev, msecs_to_jiffies(50), TLAN_TIMER_PHY_PUP); |
1da177e4 | 2543 | |
c659c38b | 2544 | } |
1da177e4 LT |
2545 | |
2546 | ||
2547 | ||
2548 | ||
c659c38b | 2549 | static void tlan_phy_power_up(struct net_device *dev) |
1da177e4 | 2550 | { |
c659c38b | 2551 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
2552 | u16 value; |
2553 | ||
c659c38b SA |
2554 | TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Powering up PHY.\n", dev->name); |
2555 | tlan_mii_sync(dev->base_addr); | |
1da177e4 | 2556 | value = MII_GC_LOOPBK; |
c659c38b SA |
2557 | tlan_mii_write_reg(dev, priv->phy[priv->phy_num], MII_GEN_CTL, value); |
2558 | tlan_mii_sync(dev->base_addr); | |
1da177e4 LT |
2559 | /* Wait for 500 ms and reset the |
2560 | * transceiver. The TLAN docs say both 50 ms and | |
2561 | * 500 ms, so do the longer, just in case. | |
2562 | */ | |
b5057dd7 | 2563 | tlan_set_timer(dev, msecs_to_jiffies(500), TLAN_TIMER_PHY_RESET); |
1da177e4 | 2564 | |
c659c38b | 2565 | } |
1da177e4 LT |
2566 | |
2567 | ||
2568 | ||
2569 | ||
c659c38b | 2570 | static void tlan_phy_reset(struct net_device *dev) |
1da177e4 | 2571 | { |
c659c38b | 2572 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
2573 | u16 phy; |
2574 | u16 value; | |
9cff441e | 2575 | unsigned long timeout = jiffies + HZ; |
1da177e4 | 2576 | |
c659c38b | 2577 | phy = priv->phy[priv->phy_num]; |
1da177e4 | 2578 | |
fd9071ec | 2579 | TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Resetting PHY.\n", dev->name); |
c659c38b | 2580 | tlan_mii_sync(dev->base_addr); |
1da177e4 | 2581 | value = MII_GC_LOOPBK | MII_GC_RESET; |
c659c38b | 2582 | tlan_mii_write_reg(dev, phy, MII_GEN_CTL, value); |
9cff441e | 2583 | do { |
c659c38b | 2584 | tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &value); |
9cff441e OZ |
2585 | if (time_after(jiffies, timeout)) { |
2586 | netdev_err(dev, "PHY reset timeout\n"); | |
2587 | return; | |
2588 | } | |
2589 | } while (value & MII_GC_RESET); | |
1da177e4 LT |
2590 | |
2591 | /* Wait for 500 ms and initialize. | |
2592 | * I don't remember why I wait this long. | |
2593 | * I've changed this to 50ms, as it seems long enough. | |
2594 | */ | |
51fd9471 | 2595 | tlan_set_timer(dev, msecs_to_jiffies(50), TLAN_TIMER_PHY_START_LINK); |
1da177e4 | 2596 | |
c659c38b | 2597 | } |
1da177e4 LT |
2598 | |
2599 | ||
2600 | ||
2601 | ||
c659c38b | 2602 | static void tlan_phy_start_link(struct net_device *dev) |
1da177e4 | 2603 | { |
c659c38b | 2604 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
2605 | u16 ability; |
2606 | u16 control; | |
2607 | u16 data; | |
2608 | u16 phy; | |
2609 | u16 status; | |
2610 | u16 tctl; | |
2611 | ||
c659c38b SA |
2612 | phy = priv->phy[priv->phy_num]; |
2613 | TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Trying to activate link.\n", dev->name); | |
2614 | tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status); | |
2615 | tlan_mii_read_reg(dev, phy, MII_GEN_STS, &ability); | |
1da177e4 | 2616 | |
c659c38b SA |
2617 | if ((status & MII_GS_AUTONEG) && |
2618 | (!priv->aui)) { | |
1da177e4 | 2619 | ability = status >> 11; |
c659c38b SA |
2620 | if (priv->speed == TLAN_SPEED_10 && |
2621 | priv->duplex == TLAN_DUPLEX_HALF) { | |
2622 | tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x0000); | |
2623 | } else if (priv->speed == TLAN_SPEED_10 && | |
2624 | priv->duplex == TLAN_DUPLEX_FULL) { | |
2625 | priv->tlan_full_duplex = true; | |
2626 | tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x0100); | |
2627 | } else if (priv->speed == TLAN_SPEED_100 && | |
2628 | priv->duplex == TLAN_DUPLEX_HALF) { | |
2629 | tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x2000); | |
2630 | } else if (priv->speed == TLAN_SPEED_100 && | |
2631 | priv->duplex == TLAN_DUPLEX_FULL) { | |
2632 | priv->tlan_full_duplex = true; | |
2633 | tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x2100); | |
1da177e4 | 2634 | } else { |
6aa20a22 | 2635 | |
1da177e4 | 2636 | /* Set Auto-Neg advertisement */ |
c659c38b SA |
2637 | tlan_mii_write_reg(dev, phy, MII_AN_ADV, |
2638 | (ability << 5) | 1); | |
1da177e4 | 2639 | /* Enablee Auto-Neg */ |
c659c38b | 2640 | tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x1000); |
1da177e4 | 2641 | /* Restart Auto-Neg */ |
c659c38b | 2642 | tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x1200); |
1da177e4 | 2643 | /* Wait for 4 sec for autonegotiation |
c659c38b SA |
2644 | * to complete. The max spec time is less than this |
2645 | * but the card need additional time to start AN. | |
2646 | * .5 sec should be plenty extra. | |
2647 | */ | |
50624aab | 2648 | netdev_info(dev, "Starting autonegotiation\n"); |
c659c38b | 2649 | tlan_set_timer(dev, (2*HZ), TLAN_TIMER_PHY_FINISH_AN); |
1da177e4 LT |
2650 | return; |
2651 | } | |
6aa20a22 JG |
2652 | |
2653 | } | |
2654 | ||
c659c38b SA |
2655 | if ((priv->aui) && (priv->phy_num != 0)) { |
2656 | priv->phy_num = 0; | |
2657 | data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | |
2658 | | TLAN_NET_CFG_PHY_EN; | |
2659 | tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, data); | |
51fd9471 | 2660 | tlan_set_timer(dev, msecs_to_jiffies(40), TLAN_TIMER_PHY_PDOWN); |
1da177e4 | 2661 | return; |
c659c38b | 2662 | } else if (priv->phy_num == 0) { |
1da177e4 | 2663 | control = 0; |
c659c38b SA |
2664 | tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tctl); |
2665 | if (priv->aui) { | |
2666 | tctl |= TLAN_TC_AUISEL; | |
6aa20a22 | 2667 | } else { |
c659c38b SA |
2668 | tctl &= ~TLAN_TC_AUISEL; |
2669 | if (priv->duplex == TLAN_DUPLEX_FULL) { | |
1da177e4 | 2670 | control |= MII_GC_DUPLEX; |
c659c38b | 2671 | priv->tlan_full_duplex = true; |
1da177e4 | 2672 | } |
c659c38b | 2673 | if (priv->speed == TLAN_SPEED_100) |
1da177e4 | 2674 | control |= MII_GC_SPEEDSEL; |
1da177e4 | 2675 | } |
c659c38b SA |
2676 | tlan_mii_write_reg(dev, phy, MII_GEN_CTL, control); |
2677 | tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, tctl); | |
1da177e4 LT |
2678 | } |
2679 | ||
2680 | /* Wait for 2 sec to give the transceiver time | |
2681 | * to establish link. | |
2682 | */ | |
c659c38b | 2683 | tlan_set_timer(dev, (4*HZ), TLAN_TIMER_FINISH_RESET); |
1da177e4 | 2684 | |
c659c38b | 2685 | } |
1da177e4 LT |
2686 | |
2687 | ||
2688 | ||
2689 | ||
c659c38b | 2690 | static void tlan_phy_finish_auto_neg(struct net_device *dev) |
1da177e4 | 2691 | { |
c659c38b | 2692 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
2693 | u16 an_adv; |
2694 | u16 an_lpa; | |
1da177e4 LT |
2695 | u16 mode; |
2696 | u16 phy; | |
2697 | u16 status; | |
6aa20a22 | 2698 | |
c659c38b | 2699 | phy = priv->phy[priv->phy_num]; |
1da177e4 | 2700 | |
c659c38b SA |
2701 | tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status); |
2702 | udelay(1000); | |
2703 | tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status); | |
1da177e4 | 2704 | |
c659c38b | 2705 | if (!(status & MII_GS_AUTOCMPLT)) { |
1da177e4 LT |
2706 | /* Wait for 8 sec to give the process |
2707 | * more time. Perhaps we should fail after a while. | |
2708 | */ | |
278e48b0 | 2709 | tlan_set_timer(dev, 2 * HZ, TLAN_TIMER_PHY_FINISH_AN); |
1da177e4 LT |
2710 | return; |
2711 | } | |
2712 | ||
50624aab | 2713 | netdev_info(dev, "Autonegotiation complete\n"); |
c659c38b SA |
2714 | tlan_mii_read_reg(dev, phy, MII_AN_ADV, &an_adv); |
2715 | tlan_mii_read_reg(dev, phy, MII_AN_LPA, &an_lpa); | |
1da177e4 | 2716 | mode = an_adv & an_lpa & 0x03E0; |
c659c38b SA |
2717 | if (mode & 0x0100) |
2718 | priv->tlan_full_duplex = true; | |
2719 | else if (!(mode & 0x0080) && (mode & 0x0040)) | |
2720 | priv->tlan_full_duplex = true; | |
2721 | ||
36bbe2f4 | 2722 | /* switch to internal PHY for 10 Mbps */ |
c659c38b SA |
2723 | if ((!(mode & 0x0180)) && |
2724 | (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10) && | |
2725 | (priv->phy_num != 0)) { | |
2726 | priv->phy_num = 0; | |
51fd9471 | 2727 | tlan_set_timer(dev, msecs_to_jiffies(400), TLAN_TIMER_PHY_PDOWN); |
1da177e4 LT |
2728 | return; |
2729 | } | |
2730 | ||
c659c38b SA |
2731 | if (priv->phy_num == 0) { |
2732 | if ((priv->duplex == TLAN_DUPLEX_FULL) || | |
2733 | (an_adv & an_lpa & 0x0040)) { | |
2734 | tlan_mii_write_reg(dev, phy, MII_GEN_CTL, | |
2735 | MII_GC_AUTOENB | MII_GC_DUPLEX); | |
50624aab | 2736 | netdev_info(dev, "Starting internal PHY with FULL-DUPLEX\n"); |
1da177e4 | 2737 | } else { |
c659c38b SA |
2738 | tlan_mii_write_reg(dev, phy, MII_GEN_CTL, |
2739 | MII_GC_AUTOENB); | |
50624aab | 2740 | netdev_info(dev, "Starting internal PHY with HALF-DUPLEX\n"); |
1da177e4 LT |
2741 | } |
2742 | } | |
2743 | ||
2744 | /* Wait for 100 ms. No reason in partiticular. | |
2745 | */ | |
51fd9471 | 2746 | tlan_set_timer(dev, msecs_to_jiffies(100), TLAN_TIMER_FINISH_RESET); |
6aa20a22 | 2747 | |
c659c38b | 2748 | } |
1da177e4 | 2749 | |
1da177e4 | 2750 | |
c659c38b SA |
2751 | /********************************************************************* |
2752 | * | |
2753 | * tlan_phy_monitor | |
2754 | * | |
2755 | * Returns: | |
2756 | * None | |
2757 | * | |
2758 | * Params: | |
c0a87c22 | 2759 | * data The device structure of this device. |
c659c38b SA |
2760 | * |
2761 | * | |
2762 | * This function monitors PHY condition by reading the status | |
c0a87c22 OZ |
2763 | * register via the MII bus, controls LINK LED and notifies the |
2764 | * kernel about link state. | |
c659c38b SA |
2765 | * |
2766 | *******************************************************************/ | |
2767 | ||
c0a87c22 | 2768 | static void tlan_phy_monitor(unsigned long data) |
1da177e4 | 2769 | { |
c0a87c22 | 2770 | struct net_device *dev = (struct net_device *) data; |
c659c38b | 2771 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
2772 | u16 phy; |
2773 | u16 phy_status; | |
2774 | ||
c659c38b | 2775 | phy = priv->phy[priv->phy_num]; |
1da177e4 | 2776 | |
c659c38b SA |
2777 | /* Get PHY status register */ |
2778 | tlan_mii_read_reg(dev, phy, MII_GEN_STS, &phy_status); | |
1da177e4 | 2779 | |
c659c38b SA |
2780 | /* Check if link has been lost */ |
2781 | if (!(phy_status & MII_GS_LINK)) { | |
c0a87c22 | 2782 | if (netif_carrier_ok(dev)) { |
c659c38b SA |
2783 | printk(KERN_DEBUG "TLAN: %s has lost link\n", |
2784 | dev->name); | |
c0a87c22 | 2785 | tlan_dio_write8(dev->base_addr, TLAN_LED_REG, 0); |
c659c38b | 2786 | netif_carrier_off(dev); |
36bbe2f4 OZ |
2787 | if (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10) { |
2788 | /* power down internal PHY */ | |
2789 | u16 data = MII_GC_PDOWN | MII_GC_LOOPBK | | |
2790 | MII_GC_ISOLATE; | |
2791 | ||
2792 | tlan_mii_sync(dev->base_addr); | |
2793 | tlan_mii_write_reg(dev, priv->phy[0], | |
2794 | MII_GEN_CTL, data); | |
2795 | /* set to external PHY */ | |
2796 | priv->phy_num = 1; | |
2797 | /* restart autonegotiation */ | |
51fd9471 | 2798 | tlan_set_timer(dev, msecs_to_jiffies(400), |
36bbe2f4 OZ |
2799 | TLAN_TIMER_PHY_PDOWN); |
2800 | return; | |
2801 | } | |
1da177e4 LT |
2802 | } |
2803 | } | |
2804 | ||
c659c38b | 2805 | /* Link restablished? */ |
c0a87c22 OZ |
2806 | if ((phy_status & MII_GS_LINK) && !netif_carrier_ok(dev)) { |
2807 | tlan_dio_write8(dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK); | |
c659c38b SA |
2808 | printk(KERN_DEBUG "TLAN: %s has reestablished link\n", |
2809 | dev->name); | |
7d17c1d6 | 2810 | netif_carrier_on(dev); |
c659c38b | 2811 | } |
c0a87c22 OZ |
2812 | priv->media_timer.expires = jiffies + HZ; |
2813 | add_timer(&priv->media_timer); | |
6aa20a22 | 2814 | } |
1da177e4 | 2815 | |
1da177e4 LT |
2816 | |
2817 | /***************************************************************************** | |
2818 | ****************************************************************************** | |
2819 | ||
c659c38b | 2820 | ThunderLAN driver MII routines |
1da177e4 | 2821 | |
c659c38b SA |
2822 | these routines are based on the information in chap. 2 of the |
2823 | "ThunderLAN Programmer's Guide", pp. 15-24. | |
1da177e4 LT |
2824 | |
2825 | ****************************************************************************** | |
2826 | *****************************************************************************/ | |
2827 | ||
2828 | ||
c659c38b SA |
2829 | /*************************************************************** |
2830 | * tlan_mii_read_reg | |
2831 | * | |
2832 | * Returns: | |
2833 | * false if ack received ok | |
2834 | * true if no ack received or other error | |
2835 | * | |
2836 | * Parms: | |
2837 | * dev The device structure containing | |
2838 | * The io address and interrupt count | |
2839 | * for this device. | |
2840 | * phy The address of the PHY to be queried. | |
2841 | * reg The register whose contents are to be | |
2842 | * retrieved. | |
2843 | * val A pointer to a variable to store the | |
2844 | * retrieved value. | |
2845 | * | |
2846 | * This function uses the TLAN's MII bus to retrieve the contents | |
2847 | * of a given register on a PHY. It sends the appropriate info | |
2848 | * and then reads the 16-bit register value from the MII bus via | |
2849 | * the TLAN SIO register. | |
2850 | * | |
2851 | **************************************************************/ | |
2852 | ||
2853 | static bool | |
2854 | tlan_mii_read_reg(struct net_device *dev, u16 phy, u16 reg, u16 *val) | |
1da177e4 LT |
2855 | { |
2856 | u8 nack; | |
2857 | u16 sio, tmp; | |
c659c38b | 2858 | u32 i; |
37fce430 | 2859 | bool err; |
1da177e4 | 2860 | int minten; |
c659c38b | 2861 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
2862 | unsigned long flags = 0; |
2863 | ||
37fce430 | 2864 | err = false; |
1da177e4 LT |
2865 | outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR); |
2866 | sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO; | |
6aa20a22 | 2867 | |
1da177e4 LT |
2868 | if (!in_irq()) |
2869 | spin_lock_irqsave(&priv->lock, flags); | |
2870 | ||
c659c38b | 2871 | tlan_mii_sync(dev->base_addr); |
1da177e4 | 2872 | |
c659c38b SA |
2873 | minten = tlan_get_bit(TLAN_NET_SIO_MINTEN, sio); |
2874 | if (minten) | |
2875 | tlan_clear_bit(TLAN_NET_SIO_MINTEN, sio); | |
1da177e4 | 2876 | |
c659c38b SA |
2877 | tlan_mii_send_data(dev->base_addr, 0x1, 2); /* start (01b) */ |
2878 | tlan_mii_send_data(dev->base_addr, 0x2, 2); /* read (10b) */ | |
2879 | tlan_mii_send_data(dev->base_addr, phy, 5); /* device # */ | |
2880 | tlan_mii_send_data(dev->base_addr, reg, 5); /* register # */ | |
1da177e4 LT |
2881 | |
2882 | ||
c659c38b | 2883 | tlan_clear_bit(TLAN_NET_SIO_MTXEN, sio); /* change direction */ |
1da177e4 | 2884 | |
c659c38b SA |
2885 | tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* clock idle bit */ |
2886 | tlan_set_bit(TLAN_NET_SIO_MCLK, sio); | |
2887 | tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* wait 300ns */ | |
1da177e4 | 2888 | |
c659c38b SA |
2889 | nack = tlan_get_bit(TLAN_NET_SIO_MDATA, sio); /* check for ACK */ |
2890 | tlan_set_bit(TLAN_NET_SIO_MCLK, sio); /* finish ACK */ | |
2891 | if (nack) { /* no ACK, so fake it */ | |
1da177e4 | 2892 | for (i = 0; i < 16; i++) { |
c659c38b SA |
2893 | tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); |
2894 | tlan_set_bit(TLAN_NET_SIO_MCLK, sio); | |
1da177e4 LT |
2895 | } |
2896 | tmp = 0xffff; | |
37fce430 | 2897 | err = true; |
1da177e4 LT |
2898 | } else { /* ACK, so read data */ |
2899 | for (tmp = 0, i = 0x8000; i; i >>= 1) { | |
c659c38b SA |
2900 | tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); |
2901 | if (tlan_get_bit(TLAN_NET_SIO_MDATA, sio)) | |
1da177e4 | 2902 | tmp |= i; |
c659c38b | 2903 | tlan_set_bit(TLAN_NET_SIO_MCLK, sio); |
1da177e4 LT |
2904 | } |
2905 | } | |
2906 | ||
2907 | ||
c659c38b SA |
2908 | tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* idle cycle */ |
2909 | tlan_set_bit(TLAN_NET_SIO_MCLK, sio); | |
1da177e4 | 2910 | |
c659c38b SA |
2911 | if (minten) |
2912 | tlan_set_bit(TLAN_NET_SIO_MINTEN, sio); | |
1da177e4 LT |
2913 | |
2914 | *val = tmp; | |
6aa20a22 | 2915 | |
1da177e4 LT |
2916 | if (!in_irq()) |
2917 | spin_unlock_irqrestore(&priv->lock, flags); | |
2918 | ||
2919 | return err; | |
2920 | ||
c659c38b | 2921 | } |
1da177e4 LT |
2922 | |
2923 | ||
2924 | ||
2925 | ||
c659c38b SA |
2926 | /*************************************************************** |
2927 | * tlan_mii_send_data | |
2928 | * | |
2929 | * Returns: | |
2930 | * Nothing | |
2931 | * Parms: | |
2932 | * base_port The base IO port of the adapter in | |
2933 | * question. | |
2934 | * dev The address of the PHY to be queried. | |
2935 | * data The value to be placed on the MII bus. | |
2936 | * num_bits The number of bits in data that are to | |
2937 | * be placed on the MII bus. | |
2938 | * | |
2939 | * This function sends on sequence of bits on the MII | |
2940 | * configuration bus. | |
2941 | * | |
2942 | **************************************************************/ | |
1da177e4 | 2943 | |
c659c38b | 2944 | static void tlan_mii_send_data(u16 base_port, u32 data, unsigned num_bits) |
1da177e4 LT |
2945 | { |
2946 | u16 sio; | |
2947 | u32 i; | |
2948 | ||
c659c38b | 2949 | if (num_bits == 0) |
1da177e4 LT |
2950 | return; |
2951 | ||
c659c38b | 2952 | outw(TLAN_NET_SIO, base_port + TLAN_DIO_ADR); |
1da177e4 | 2953 | sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO; |
c659c38b | 2954 | tlan_set_bit(TLAN_NET_SIO_MTXEN, sio); |
1da177e4 | 2955 | |
c659c38b SA |
2956 | for (i = (0x1 << (num_bits - 1)); i; i >>= 1) { |
2957 | tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); | |
2958 | (void) tlan_get_bit(TLAN_NET_SIO_MCLK, sio); | |
2959 | if (data & i) | |
2960 | tlan_set_bit(TLAN_NET_SIO_MDATA, sio); | |
1da177e4 | 2961 | else |
c659c38b SA |
2962 | tlan_clear_bit(TLAN_NET_SIO_MDATA, sio); |
2963 | tlan_set_bit(TLAN_NET_SIO_MCLK, sio); | |
2964 | (void) tlan_get_bit(TLAN_NET_SIO_MCLK, sio); | |
1da177e4 LT |
2965 | } |
2966 | ||
c659c38b | 2967 | } |
1da177e4 LT |
2968 | |
2969 | ||
2970 | ||
2971 | ||
c659c38b SA |
2972 | /*************************************************************** |
2973 | * TLan_MiiSync | |
2974 | * | |
2975 | * Returns: | |
2976 | * Nothing | |
2977 | * Parms: | |
2978 | * base_port The base IO port of the adapter in | |
2979 | * question. | |
2980 | * | |
2981 | * This functions syncs all PHYs in terms of the MII configuration | |
2982 | * bus. | |
2983 | * | |
2984 | **************************************************************/ | |
1da177e4 | 2985 | |
c659c38b | 2986 | static void tlan_mii_sync(u16 base_port) |
1da177e4 LT |
2987 | { |
2988 | int i; | |
2989 | u16 sio; | |
2990 | ||
c659c38b | 2991 | outw(TLAN_NET_SIO, base_port + TLAN_DIO_ADR); |
1da177e4 LT |
2992 | sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO; |
2993 | ||
c659c38b SA |
2994 | tlan_clear_bit(TLAN_NET_SIO_MTXEN, sio); |
2995 | for (i = 0; i < 32; i++) { | |
2996 | tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); | |
2997 | tlan_set_bit(TLAN_NET_SIO_MCLK, sio); | |
1da177e4 LT |
2998 | } |
2999 | ||
c659c38b | 3000 | } |
1da177e4 LT |
3001 | |
3002 | ||
3003 | ||
3004 | ||
c659c38b SA |
3005 | /*************************************************************** |
3006 | * tlan_mii_write_reg | |
3007 | * | |
3008 | * Returns: | |
3009 | * Nothing | |
3010 | * Parms: | |
3011 | * dev The device structure for the device | |
3012 | * to write to. | |
3013 | * phy The address of the PHY to be written to. | |
3014 | * reg The register whose contents are to be | |
3015 | * written. | |
3016 | * val The value to be written to the register. | |
3017 | * | |
3018 | * This function uses the TLAN's MII bus to write the contents of a | |
3019 | * given register on a PHY. It sends the appropriate info and then | |
3020 | * writes the 16-bit register value from the MII configuration bus | |
3021 | * via the TLAN SIO register. | |
3022 | * | |
3023 | **************************************************************/ | |
1da177e4 | 3024 | |
c659c38b SA |
3025 | static void |
3026 | tlan_mii_write_reg(struct net_device *dev, u16 phy, u16 reg, u16 val) | |
1da177e4 LT |
3027 | { |
3028 | u16 sio; | |
3029 | int minten; | |
3030 | unsigned long flags = 0; | |
c659c38b | 3031 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
3032 | |
3033 | outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR); | |
3034 | sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO; | |
6aa20a22 | 3035 | |
1da177e4 LT |
3036 | if (!in_irq()) |
3037 | spin_lock_irqsave(&priv->lock, flags); | |
3038 | ||
c659c38b | 3039 | tlan_mii_sync(dev->base_addr); |
1da177e4 | 3040 | |
c659c38b SA |
3041 | minten = tlan_get_bit(TLAN_NET_SIO_MINTEN, sio); |
3042 | if (minten) | |
3043 | tlan_clear_bit(TLAN_NET_SIO_MINTEN, sio); | |
1da177e4 | 3044 | |
c659c38b SA |
3045 | tlan_mii_send_data(dev->base_addr, 0x1, 2); /* start (01b) */ |
3046 | tlan_mii_send_data(dev->base_addr, 0x1, 2); /* write (01b) */ | |
3047 | tlan_mii_send_data(dev->base_addr, phy, 5); /* device # */ | |
3048 | tlan_mii_send_data(dev->base_addr, reg, 5); /* register # */ | |
1da177e4 | 3049 | |
c659c38b SA |
3050 | tlan_mii_send_data(dev->base_addr, 0x2, 2); /* send ACK */ |
3051 | tlan_mii_send_data(dev->base_addr, val, 16); /* send data */ | |
1da177e4 | 3052 | |
c659c38b SA |
3053 | tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* idle cycle */ |
3054 | tlan_set_bit(TLAN_NET_SIO_MCLK, sio); | |
1da177e4 | 3055 | |
c659c38b SA |
3056 | if (minten) |
3057 | tlan_set_bit(TLAN_NET_SIO_MINTEN, sio); | |
6aa20a22 | 3058 | |
1da177e4 LT |
3059 | if (!in_irq()) |
3060 | spin_unlock_irqrestore(&priv->lock, flags); | |
3061 | ||
c659c38b | 3062 | } |
1da177e4 LT |
3063 | |
3064 | ||
3065 | ||
3066 | ||
3067 | /***************************************************************************** | |
3068 | ****************************************************************************** | |
3069 | ||
c659c38b | 3070 | ThunderLAN driver eeprom routines |
1da177e4 | 3071 | |
c659c38b SA |
3072 | the Compaq netelligent 10 and 10/100 cards use a microchip 24C02A |
3073 | EEPROM. these functions are based on information in microchip's | |
3074 | data sheet. I don't know how well this functions will work with | |
3075 | other Eeproms. | |
1da177e4 LT |
3076 | |
3077 | ****************************************************************************** | |
3078 | *****************************************************************************/ | |
3079 | ||
3080 | ||
c659c38b SA |
3081 | /*************************************************************** |
3082 | * tlan_ee_send_start | |
3083 | * | |
3084 | * Returns: | |
3085 | * Nothing | |
3086 | * Parms: | |
3087 | * io_base The IO port base address for the | |
3088 | * TLAN device with the EEPROM to | |
3089 | * use. | |
3090 | * | |
3091 | * This function sends a start cycle to an EEPROM attached | |
3092 | * to a TLAN chip. | |
3093 | * | |
3094 | **************************************************************/ | |
3095 | ||
3096 | static void tlan_ee_send_start(u16 io_base) | |
1da177e4 LT |
3097 | { |
3098 | u16 sio; | |
3099 | ||
c659c38b | 3100 | outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR); |
1da177e4 LT |
3101 | sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO; |
3102 | ||
c659c38b SA |
3103 | tlan_set_bit(TLAN_NET_SIO_ECLOK, sio); |
3104 | tlan_set_bit(TLAN_NET_SIO_EDATA, sio); | |
3105 | tlan_set_bit(TLAN_NET_SIO_ETXEN, sio); | |
3106 | tlan_clear_bit(TLAN_NET_SIO_EDATA, sio); | |
3107 | tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio); | |
3108 | ||
3109 | } | |
3110 | ||
3111 | ||
3112 | ||
3113 | ||
3114 | /*************************************************************** | |
3115 | * tlan_ee_send_byte | |
3116 | * | |
3117 | * Returns: | |
3118 | * If the correct ack was received, 0, otherwise 1 | |
3119 | * Parms: io_base The IO port base address for the | |
3120 | * TLAN device with the EEPROM to | |
3121 | * use. | |
3122 | * data The 8 bits of information to | |
3123 | * send to the EEPROM. | |
3124 | * stop If TLAN_EEPROM_STOP is passed, a | |
3125 | * stop cycle is sent after the | |
3126 | * byte is sent after the ack is | |
3127 | * read. | |
3128 | * | |
3129 | * This function sends a byte on the serial EEPROM line, | |
3130 | * driving the clock to send each bit. The function then | |
3131 | * reverses transmission direction and reads an acknowledge | |
3132 | * bit. | |
3133 | * | |
3134 | **************************************************************/ | |
3135 | ||
3136 | static int tlan_ee_send_byte(u16 io_base, u8 data, int stop) | |
1da177e4 LT |
3137 | { |
3138 | int err; | |
3139 | u8 place; | |
3140 | u16 sio; | |
3141 | ||
c659c38b | 3142 | outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR); |
1da177e4 LT |
3143 | sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO; |
3144 | ||
3145 | /* Assume clock is low, tx is enabled; */ | |
c659c38b SA |
3146 | for (place = 0x80; place != 0; place >>= 1) { |
3147 | if (place & data) | |
3148 | tlan_set_bit(TLAN_NET_SIO_EDATA, sio); | |
1da177e4 | 3149 | else |
c659c38b SA |
3150 | tlan_clear_bit(TLAN_NET_SIO_EDATA, sio); |
3151 | tlan_set_bit(TLAN_NET_SIO_ECLOK, sio); | |
3152 | tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio); | |
1da177e4 | 3153 | } |
c659c38b SA |
3154 | tlan_clear_bit(TLAN_NET_SIO_ETXEN, sio); |
3155 | tlan_set_bit(TLAN_NET_SIO_ECLOK, sio); | |
3156 | err = tlan_get_bit(TLAN_NET_SIO_EDATA, sio); | |
3157 | tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio); | |
3158 | tlan_set_bit(TLAN_NET_SIO_ETXEN, sio); | |
1da177e4 | 3159 | |
c659c38b | 3160 | if ((!err) && stop) { |
dfc2c0a6 | 3161 | /* STOP, raise data while clock is high */ |
c659c38b SA |
3162 | tlan_clear_bit(TLAN_NET_SIO_EDATA, sio); |
3163 | tlan_set_bit(TLAN_NET_SIO_ECLOK, sio); | |
3164 | tlan_set_bit(TLAN_NET_SIO_EDATA, sio); | |
1da177e4 LT |
3165 | } |
3166 | ||
807540ba | 3167 | return err; |
1da177e4 | 3168 | |
c659c38b SA |
3169 | } |
3170 | ||
3171 | ||
3172 | ||
3173 | ||
3174 | /*************************************************************** | |
3175 | * tlan_ee_receive_byte | |
3176 | * | |
3177 | * Returns: | |
3178 | * Nothing | |
3179 | * Parms: | |
3180 | * io_base The IO port base address for the | |
3181 | * TLAN device with the EEPROM to | |
3182 | * use. | |
3183 | * data An address to a char to hold the | |
3184 | * data sent from the EEPROM. | |
3185 | * stop If TLAN_EEPROM_STOP is passed, a | |
3186 | * stop cycle is sent after the | |
3187 | * byte is received, and no ack is | |
3188 | * sent. | |
3189 | * | |
3190 | * This function receives 8 bits of data from the EEPROM | |
3191 | * over the serial link. It then sends and ack bit, or no | |
3192 | * ack and a stop bit. This function is used to retrieve | |
3193 | * data after the address of a byte in the EEPROM has been | |
3194 | * sent. | |
3195 | * | |
3196 | **************************************************************/ | |
3197 | ||
3198 | static void tlan_ee_receive_byte(u16 io_base, u8 *data, int stop) | |
1da177e4 LT |
3199 | { |
3200 | u8 place; | |
3201 | u16 sio; | |
3202 | ||
c659c38b | 3203 | outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR); |
1da177e4 LT |
3204 | sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO; |
3205 | *data = 0; | |
3206 | ||
3207 | /* Assume clock is low, tx is enabled; */ | |
c659c38b SA |
3208 | tlan_clear_bit(TLAN_NET_SIO_ETXEN, sio); |
3209 | for (place = 0x80; place; place >>= 1) { | |
3210 | tlan_set_bit(TLAN_NET_SIO_ECLOK, sio); | |
3211 | if (tlan_get_bit(TLAN_NET_SIO_EDATA, sio)) | |
1da177e4 | 3212 | *data |= place; |
c659c38b | 3213 | tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio); |
1da177e4 LT |
3214 | } |
3215 | ||
c659c38b SA |
3216 | tlan_set_bit(TLAN_NET_SIO_ETXEN, sio); |
3217 | if (!stop) { | |
3218 | tlan_clear_bit(TLAN_NET_SIO_EDATA, sio); /* ack = 0 */ | |
3219 | tlan_set_bit(TLAN_NET_SIO_ECLOK, sio); | |
3220 | tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio); | |
1da177e4 | 3221 | } else { |
c659c38b SA |
3222 | tlan_set_bit(TLAN_NET_SIO_EDATA, sio); /* no ack = 1 (?) */ |
3223 | tlan_set_bit(TLAN_NET_SIO_ECLOK, sio); | |
3224 | tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio); | |
dfc2c0a6 | 3225 | /* STOP, raise data while clock is high */ |
c659c38b SA |
3226 | tlan_clear_bit(TLAN_NET_SIO_EDATA, sio); |
3227 | tlan_set_bit(TLAN_NET_SIO_ECLOK, sio); | |
3228 | tlan_set_bit(TLAN_NET_SIO_EDATA, sio); | |
3229 | } | |
3230 | ||
3231 | } | |
3232 | ||
3233 | ||
3234 | ||
3235 | ||
3236 | /*************************************************************** | |
3237 | * tlan_ee_read_byte | |
3238 | * | |
3239 | * Returns: | |
3240 | * No error = 0, else, the stage at which the error | |
3241 | * occurred. | |
3242 | * Parms: | |
3243 | * io_base The IO port base address for the | |
3244 | * TLAN device with the EEPROM to | |
3245 | * use. | |
3246 | * ee_addr The address of the byte in the | |
3247 | * EEPROM whose contents are to be | |
3248 | * retrieved. | |
3249 | * data An address to a char to hold the | |
3250 | * data obtained from the EEPROM. | |
3251 | * | |
3252 | * This function reads a byte of information from an byte | |
3253 | * cell in the EEPROM. | |
3254 | * | |
3255 | **************************************************************/ | |
3256 | ||
3257 | static int tlan_ee_read_byte(struct net_device *dev, u8 ee_addr, u8 *data) | |
1da177e4 LT |
3258 | { |
3259 | int err; | |
c659c38b | 3260 | struct tlan_priv *priv = netdev_priv(dev); |
1da177e4 | 3261 | unsigned long flags = 0; |
c659c38b | 3262 | int ret = 0; |
1da177e4 LT |
3263 | |
3264 | spin_lock_irqsave(&priv->lock, flags); | |
3265 | ||
c659c38b SA |
3266 | tlan_ee_send_start(dev->base_addr); |
3267 | err = tlan_ee_send_byte(dev->base_addr, 0xa0, TLAN_EEPROM_ACK); | |
3268 | if (err) { | |
3269 | ret = 1; | |
1da177e4 LT |
3270 | goto fail; |
3271 | } | |
c659c38b SA |
3272 | err = tlan_ee_send_byte(dev->base_addr, ee_addr, TLAN_EEPROM_ACK); |
3273 | if (err) { | |
3274 | ret = 2; | |
1da177e4 LT |
3275 | goto fail; |
3276 | } | |
c659c38b SA |
3277 | tlan_ee_send_start(dev->base_addr); |
3278 | err = tlan_ee_send_byte(dev->base_addr, 0xa1, TLAN_EEPROM_ACK); | |
3279 | if (err) { | |
3280 | ret = 3; | |
1da177e4 LT |
3281 | goto fail; |
3282 | } | |
c659c38b | 3283 | tlan_ee_receive_byte(dev->base_addr, data, TLAN_EEPROM_STOP); |
1da177e4 LT |
3284 | fail: |
3285 | spin_unlock_irqrestore(&priv->lock, flags); | |
3286 | ||
3287 | return ret; | |
3288 | ||
c659c38b | 3289 | } |
1da177e4 LT |
3290 | |
3291 | ||
3292 |