1 | /*====================================================================== |
2 | |
3 | A PCMCIA ethernet driver for SMC91c92-based cards. |
4 | |
5 | This driver supports Megahertz PCMCIA ethernet cards; and |
6 | Megahertz, Motorola, Ositech, and Psion Dacom ethernet/modem |
7 | multifunction cards. |
8 | |
9 | Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net |
10 | |
11 | smc91c92_cs.c 1.122 2002/10/25 06:26:39 |
12 | |
13 | This driver contains code written by Donald Becker |
14 | (becker@scyld.com), Rowan Hughes (x-csrdh@jcu.edu.au), |
15 | David Hinds (dahinds@users.sourceforge.net), and Erik Stahlman |
16 | (erik@vt.edu). Donald wrote the SMC 91c92 code using parts of |
17 | Erik's SMC 91c94 driver. Rowan wrote a similar driver, and I've |
18 | incorporated some parts of his driver here. I (Dave) wrote most |
19 | of the PCMCIA glue code, and the Ositech support code. Kelly |
20 | Stephens (kstephen@holli.com) added support for the Motorola |
21 | Mariner, with help from Allen Brost. |
22 | |
23 | This software may be used and distributed according to the terms of |
24 | the GNU General Public License, incorporated herein by reference. |
25 | |
26 | ======================================================================*/ |
27 | |
28 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
29 | |
30 | #include <linux/module.h> |
31 | #include <linux/kernel.h> |
32 | #include <linux/slab.h> |
33 | #include <linux/string.h> |
34 | #include <linux/timer.h> |
35 | #include <linux/interrupt.h> |
36 | #include <linux/delay.h> |
37 | #include <linux/crc32.h> |
38 | #include <linux/netdevice.h> |
39 | #include <linux/etherdevice.h> |
40 | #include <linux/skbuff.h> |
41 | #include <linux/if_arp.h> |
42 | #include <linux/ioport.h> |
43 | #include <linux/ethtool.h> |
44 | #include <linux/mii.h> |
45 | #include <linux/jiffies.h> |
46 | #include <linux/firmware.h> |
47 | |
48 | #include <pcmcia/cistpl.h> |
49 | #include <pcmcia/cisreg.h> |
50 | #include <pcmcia/ciscode.h> |
51 | #include <pcmcia/ds.h> |
52 | #include <pcmcia/ss.h> |
53 | |
54 | #include <asm/io.h> |
55 | #include <linux/uaccess.h> |
56 | |
57 | /*====================================================================*/ |
58 | |
59 | static const char *if_names[] = { "auto" , "10baseT" , "10base2" }; |
60 | |
61 | /* Firmware name */ |
62 | #define FIRMWARE_NAME "ositech/Xilinx7OD.bin" |
63 | |
64 | /* Module parameters */ |
65 | |
66 | MODULE_DESCRIPTION("SMC 91c92 series PCMCIA ethernet driver" ); |
67 | MODULE_LICENSE("GPL" ); |
68 | MODULE_FIRMWARE(FIRMWARE_NAME); |
69 | |
70 | #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0) |
71 | |
72 | /* |
73 | Transceiver/media type. |
74 | 0 = auto |
75 | 1 = 10baseT (and autoselect if #define AUTOSELECT), |
76 | 2 = AUI/10base2, |
77 | */ |
78 | INT_MODULE_PARM(if_port, 0); |
79 | |
80 | |
81 | #define DRV_NAME "smc91c92_cs" |
82 | #define DRV_VERSION "1.123" |
83 | |
84 | /*====================================================================*/ |
85 | |
86 | /* Operational parameter that usually are not changed. */ |
87 | |
88 | /* Time in jiffies before concluding Tx hung */ |
89 | #define TX_TIMEOUT ((400*HZ)/1000) |
90 | |
91 | /* Maximum events (Rx packets, etc.) to handle at each interrupt. */ |
92 | #define INTR_WORK 4 |
93 | |
94 | /* Times to check the check the chip before concluding that it doesn't |
95 | currently have room for another Tx packet. */ |
96 | #define MEMORY_WAIT_TIME 8 |
97 | |
98 | struct smc_private { |
99 | struct pcmcia_device *p_dev; |
100 | spinlock_t lock; |
101 | u_short manfid; |
102 | u_short cardid; |
103 | |
104 | struct sk_buff *saved_skb; |
105 | int packets_waiting; |
106 | void __iomem *base; |
107 | u_short cfg; |
108 | struct timer_list media; |
109 | int watchdog, tx_err; |
110 | u_short media_status; |
111 | u_short fast_poll; |
112 | u_short link_status; |
113 | struct mii_if_info mii_if; |
114 | int duplex; |
115 | int rx_ovrn; |
116 | unsigned long last_rx; |
117 | }; |
118 | |
119 | /* Special definitions for Megahertz multifunction cards */ |
120 | #define MEGAHERTZ_ISR 0x0380 |
121 | |
122 | /* Special function registers for Motorola Mariner */ |
123 | #define MOT_LAN 0x0000 |
124 | #define MOT_UART 0x0020 |
125 | #define MOT_EEPROM 0x20 |
126 | |
127 | #define MOT_NORMAL \ |
128 | (COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA) |
129 | |
130 | /* Special function registers for Ositech cards */ |
131 | #define OSITECH_AUI_CTL 0x0c |
132 | #define OSITECH_PWRDOWN 0x0d |
133 | #define OSITECH_RESET 0x0e |
134 | #define OSITECH_ISR 0x0f |
135 | #define OSITECH_AUI_PWR 0x0c |
136 | #define OSITECH_RESET_ISR 0x0e |
137 | |
138 | #define OSI_AUI_PWR 0x40 |
139 | #define OSI_LAN_PWRDOWN 0x02 |
140 | #define OSI_MODEM_PWRDOWN 0x01 |
141 | #define OSI_LAN_RESET 0x02 |
142 | #define OSI_MODEM_RESET 0x01 |
143 | |
144 | /* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */ |
145 | #define BANK_SELECT 14 /* Window select register. */ |
146 | #define SMC_SELECT_BANK(x) { outw(x, ioaddr + BANK_SELECT); } |
147 | |
148 | /* Bank 0 registers. */ |
149 | #define TCR 0 /* transmit control register */ |
150 | #define TCR_CLEAR 0 /* do NOTHING */ |
151 | #define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */ |
152 | #define TCR_PAD_EN 0x0080 /* pads short packets to 64 bytes */ |
153 | #define TCR_MONCSN 0x0400 /* Monitor Carrier. */ |
154 | #define TCR_FDUPLX 0x0800 /* Full duplex mode. */ |
155 | #define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN |
156 | |
157 | #define EPH 2 /* Ethernet Protocol Handler report. */ |
158 | #define EPH_TX_SUC 0x0001 |
159 | #define EPH_SNGLCOL 0x0002 |
160 | #define EPH_MULCOL 0x0004 |
161 | #define EPH_LTX_MULT 0x0008 |
162 | #define EPH_16COL 0x0010 |
163 | #define EPH_SQET 0x0020 |
164 | #define EPH_LTX_BRD 0x0040 |
165 | #define EPH_TX_DEFR 0x0080 |
166 | #define EPH_LAT_COL 0x0200 |
167 | #define EPH_LOST_CAR 0x0400 |
168 | #define EPH_EXC_DEF 0x0800 |
169 | #define EPH_CTR_ROL 0x1000 |
170 | #define EPH_RX_OVRN 0x2000 |
171 | #define EPH_LINK_OK 0x4000 |
172 | #define EPH_TX_UNRN 0x8000 |
173 | #define MEMINFO 8 /* Memory Information Register */ |
174 | #define MEMCFG 10 /* Memory Configuration Register */ |
175 | |
176 | /* Bank 1 registers. */ |
177 | #define CONFIG 0 |
178 | #define CFG_MII_SELECT 0x8000 /* 91C100 only */ |
179 | #define CFG_NO_WAIT 0x1000 |
180 | #define CFG_FULL_STEP 0x0400 |
181 | #define CFG_SET_SQLCH 0x0200 |
182 | #define CFG_AUI_SELECT 0x0100 |
183 | #define CFG_16BIT 0x0080 |
184 | #define CFG_DIS_LINK 0x0040 |
185 | #define CFG_STATIC 0x0030 |
186 | #define CFG_IRQ_SEL_1 0x0004 |
187 | #define CFG_IRQ_SEL_0 0x0002 |
188 | #define BASE_ADDR 2 |
189 | #define ADDR0 4 |
190 | #define GENERAL 10 |
191 | #define CONTROL 12 |
192 | #define CTL_STORE 0x0001 |
193 | #define CTL_RELOAD 0x0002 |
194 | #define CTL_EE_SELECT 0x0004 |
195 | #define CTL_TE_ENABLE 0x0020 |
196 | #define CTL_CR_ENABLE 0x0040 |
197 | #define CTL_LE_ENABLE 0x0080 |
198 | #define CTL_AUTO_RELEASE 0x0800 |
199 | #define CTL_POWERDOWN 0x2000 |
200 | |
201 | /* Bank 2 registers. */ |
202 | #define MMU_CMD 0 |
203 | #define MC_ALLOC 0x20 /* or with number of 256 byte packets */ |
204 | #define MC_RESET 0x40 |
205 | #define MC_RELEASE 0x80 /* remove and release the current rx packet */ |
206 | #define MC_FREEPKT 0xA0 /* Release packet in PNR register */ |
207 | #define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */ |
208 | #define PNR_ARR 2 |
209 | #define FIFO_PORTS 4 |
210 | #define FP_RXEMPTY 0x8000 |
211 | #define POINTER 6 |
212 | #define PTR_AUTO_INC 0x0040 |
213 | #define PTR_READ 0x2000 |
214 | #define PTR_AUTOINC 0x4000 |
215 | #define PTR_RCV 0x8000 |
216 | #define DATA_1 8 |
217 | #define INTERRUPT 12 |
218 | #define IM_RCV_INT 0x1 |
219 | #define IM_TX_INT 0x2 |
220 | #define IM_TX_EMPTY_INT 0x4 |
221 | #define IM_ALLOC_INT 0x8 |
222 | #define IM_RX_OVRN_INT 0x10 |
223 | #define IM_EPH_INT 0x20 |
224 | |
225 | #define RCR 4 |
226 | enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002, |
227 | RxEnable = 0x0100, RxStripCRC = 0x0200}; |
228 | #define RCR_SOFTRESET 0x8000 /* resets the chip */ |
229 | #define RCR_STRIP_CRC 0x200 /* strips CRC */ |
230 | #define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */ |
231 | #define RCR_ALMUL 0x4 /* receive all multicast packets */ |
232 | #define RCR_PROMISC 0x2 /* enable promiscuous mode */ |
233 | |
234 | /* the normal settings for the RCR register : */ |
235 | #define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE) |
236 | #define RCR_CLEAR 0x0 /* set it to a base state */ |
237 | #define COUNTER 6 |
238 | |
239 | /* BANK 3 -- not the same values as in smc9194! */ |
240 | #define MULTICAST0 0 |
241 | #define MULTICAST2 2 |
242 | #define MULTICAST4 4 |
243 | #define MULTICAST6 6 |
244 | #define MGMT 8 |
245 | #define REVISION 0x0a |
246 | |
247 | /* Transmit status bits. */ |
248 | #define TS_SUCCESS 0x0001 |
249 | #define TS_16COL 0x0010 |
250 | #define TS_LATCOL 0x0200 |
251 | #define TS_LOSTCAR 0x0400 |
252 | |
253 | /* Receive status bits. */ |
254 | #define RS_ALGNERR 0x8000 |
255 | #define RS_BADCRC 0x2000 |
256 | #define RS_ODDFRAME 0x1000 |
257 | #define RS_TOOLONG 0x0800 |
258 | #define RS_TOOSHORT 0x0400 |
259 | #define RS_MULTICAST 0x0001 |
260 | #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT) |
261 | |
262 | #define set_bits(v, p) outw(inw(p)|(v), (p)) |
263 | #define mask_bits(v, p) outw(inw(p)&(v), (p)) |
264 | |
265 | /*====================================================================*/ |
266 | |
267 | static void smc91c92_detach(struct pcmcia_device *p_dev); |
268 | static int smc91c92_config(struct pcmcia_device *link); |
269 | static void smc91c92_release(struct pcmcia_device *link); |
270 | |
271 | static int smc_open(struct net_device *dev); |
272 | static int smc_close(struct net_device *dev); |
273 | static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
274 | static void smc_tx_timeout(struct net_device *dev, unsigned int txqueue); |
275 | static netdev_tx_t smc_start_xmit(struct sk_buff *skb, |
276 | struct net_device *dev); |
277 | static irqreturn_t smc_interrupt(int irq, void *dev_id); |
278 | static void smc_rx(struct net_device *dev); |
279 | static void set_rx_mode(struct net_device *dev); |
280 | static int s9k_config(struct net_device *dev, struct ifmap *map); |
281 | static void smc_set_xcvr(struct net_device *dev, int if_port); |
282 | static void smc_reset(struct net_device *dev); |
283 | static void media_check(struct timer_list *t); |
284 | static void mdio_sync(unsigned int addr); |
285 | static int mdio_read(struct net_device *dev, int phy_id, int loc); |
286 | static void mdio_write(struct net_device *dev, int phy_id, int loc, int value); |
287 | static int smc_link_ok(struct net_device *dev); |
288 | static const struct ethtool_ops ethtool_ops; |
289 | |
290 | static const struct net_device_ops smc_netdev_ops = { |
291 | .ndo_open = smc_open, |
292 | .ndo_stop = smc_close, |
293 | .ndo_start_xmit = smc_start_xmit, |
294 | .ndo_tx_timeout = smc_tx_timeout, |
295 | .ndo_set_config = s9k_config, |
296 | .ndo_set_rx_mode = set_rx_mode, |
297 | .ndo_eth_ioctl = smc_ioctl, |
298 | .ndo_set_mac_address = eth_mac_addr, |
299 | .ndo_validate_addr = eth_validate_addr, |
300 | }; |
301 | |
302 | static int smc91c92_probe(struct pcmcia_device *link) |
303 | { |
304 | struct smc_private *smc; |
305 | struct net_device *dev; |
306 | |
307 | dev_dbg(&link->dev, "smc91c92_attach()\n" ); |
308 | |
309 | /* Create new ethernet device */ |
310 | dev = alloc_etherdev(sizeof(struct smc_private)); |
311 | if (!dev) |
312 | return -ENOMEM; |
313 | smc = netdev_priv(dev); |
314 | smc->p_dev = link; |
315 | link->priv = dev; |
316 | |
317 | spin_lock_init(&smc->lock); |
318 | |
319 | /* The SMC91c92-specific entries in the device structure. */ |
320 | dev->netdev_ops = &smc_netdev_ops; |
321 | dev->ethtool_ops = ðtool_ops; |
322 | dev->watchdog_timeo = TX_TIMEOUT; |
323 | |
324 | smc->mii_if.dev = dev; |
325 | smc->mii_if.mdio_read = mdio_read; |
326 | smc->mii_if.mdio_write = mdio_write; |
327 | smc->mii_if.phy_id_mask = 0x1f; |
328 | smc->mii_if.reg_num_mask = 0x1f; |
329 | |
330 | return smc91c92_config(link); |
331 | } /* smc91c92_attach */ |
332 | |
333 | static void smc91c92_detach(struct pcmcia_device *link) |
334 | { |
335 | struct net_device *dev = link->priv; |
336 | |
337 | dev_dbg(&link->dev, "smc91c92_detach\n" ); |
338 | |
339 | unregister_netdev(dev); |
340 | |
341 | smc91c92_release(link); |
342 | |
343 | free_netdev(dev); |
344 | } /* smc91c92_detach */ |
345 | |
346 | /*====================================================================*/ |
347 | |
348 | static int cvt_ascii_address(struct net_device *dev, char *s) |
349 | { |
350 | u8 mac[ETH_ALEN]; |
351 | int i, j, da, c; |
352 | |
353 | if (strlen(s) != 12) |
354 | return -1; |
355 | for (i = 0; i < 6; i++) { |
356 | da = 0; |
357 | for (j = 0; j < 2; j++) { |
358 | c = *s++; |
359 | da <<= 4; |
360 | da += ((c >= '0') && (c <= '9')) ? |
361 | (c - '0') : ((c & 0x0f) + 9); |
362 | } |
363 | mac[i] = da; |
364 | } |
365 | eth_hw_addr_set(dev, addr: mac); |
366 | return 0; |
367 | } |
368 | |
369 | /*==================================================================== |
370 | |
371 | Configuration stuff for Megahertz cards |
372 | |
373 | mhz_3288_power() is used to power up a 3288's ethernet chip. |
374 | mhz_mfc_config() handles socket setup for multifunction (1144 |
375 | and 3288) cards. mhz_setup() gets a card's hardware ethernet |
376 | address. |
377 | |
378 | ======================================================================*/ |
379 | |
380 | static int mhz_3288_power(struct pcmcia_device *link) |
381 | { |
382 | struct net_device *dev = link->priv; |
383 | struct smc_private *smc = netdev_priv(dev); |
384 | u_char tmp; |
385 | |
386 | /* Read the ISR twice... */ |
387 | readb(addr: smc->base+MEGAHERTZ_ISR); |
388 | udelay(5); |
389 | readb(addr: smc->base+MEGAHERTZ_ISR); |
390 | |
391 | /* Pause 200ms... */ |
392 | mdelay(200); |
393 | |
394 | /* Now read and write the COR... */ |
395 | tmp = readb(addr: smc->base + link->config_base + CISREG_COR); |
396 | udelay(5); |
397 | writeb(val: tmp, addr: smc->base + link->config_base + CISREG_COR); |
398 | |
399 | return 0; |
400 | } |
401 | |
402 | static int mhz_mfc_config_check(struct pcmcia_device *p_dev, void *priv_data) |
403 | { |
404 | int k; |
405 | p_dev->io_lines = 16; |
406 | p_dev->resource[1]->start = p_dev->resource[0]->start; |
407 | p_dev->resource[1]->end = 8; |
408 | p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH; |
409 | p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; |
410 | p_dev->resource[0]->end = 16; |
411 | p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; |
412 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; |
413 | for (k = 0; k < 0x400; k += 0x10) { |
414 | if (k & 0x80) |
415 | continue; |
416 | p_dev->resource[0]->start = k ^ 0x300; |
417 | if (!pcmcia_request_io(p_dev)) |
418 | return 0; |
419 | } |
420 | return -ENODEV; |
421 | } |
422 | |
423 | static int mhz_mfc_config(struct pcmcia_device *link) |
424 | { |
425 | struct net_device *dev = link->priv; |
426 | struct smc_private *smc = netdev_priv(dev); |
427 | unsigned int offset; |
428 | int i; |
429 | |
430 | link->config_flags |= CONF_ENABLE_SPKR | CONF_ENABLE_IRQ | |
431 | CONF_AUTO_SET_IO; |
432 | |
433 | /* The Megahertz combo cards have modem-like CIS entries, so |
434 | we have to explicitly try a bunch of port combinations. */ |
435 | if (pcmcia_loop_config(p_dev: link, conf_check: mhz_mfc_config_check, NULL)) |
436 | return -ENODEV; |
437 | |
438 | dev->base_addr = link->resource[0]->start; |
439 | |
440 | /* Allocate a memory window, for accessing the ISR */ |
441 | link->resource[2]->flags = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE; |
442 | link->resource[2]->start = link->resource[2]->end = 0; |
443 | i = pcmcia_request_window(p_dev: link, res: link->resource[2], speed: 0); |
444 | if (i != 0) |
445 | return -ENODEV; |
446 | |
447 | smc->base = ioremap(offset: link->resource[2]->start, |
448 | size: resource_size(res: link->resource[2])); |
449 | offset = (smc->manfid == MANFID_MOTOROLA) ? link->config_base : 0; |
450 | i = pcmcia_map_mem_page(p_dev: link, res: link->resource[2], offset); |
451 | if ((i == 0) && |
452 | (smc->manfid == MANFID_MEGAHERTZ) && |
453 | (smc->cardid == PRODID_MEGAHERTZ_EM3288)) |
454 | mhz_3288_power(link); |
455 | |
456 | return 0; |
457 | } |
458 | |
459 | static int pcmcia_get_versmac(struct pcmcia_device *p_dev, |
460 | tuple_t *tuple, |
461 | void *priv) |
462 | { |
463 | struct net_device *dev = priv; |
464 | cisparse_t parse; |
465 | u8 *buf; |
466 | |
467 | if (pcmcia_parse_tuple(tuple, parse: &parse)) |
468 | return -EINVAL; |
469 | |
470 | buf = parse.version_1.str + parse.version_1.ofs[3]; |
471 | |
472 | if ((parse.version_1.ns > 3) && (cvt_ascii_address(dev, s: buf) == 0)) |
473 | return 0; |
474 | |
475 | return -EINVAL; |
476 | }; |
477 | |
478 | static int mhz_setup(struct pcmcia_device *link) |
479 | { |
480 | struct net_device *dev = link->priv; |
481 | size_t len; |
482 | u8 *buf; |
483 | int rc; |
484 | |
485 | /* Read the station address from the CIS. It is stored as the last |
486 | (fourth) string in the Version 1 Version/ID tuple. */ |
487 | if ((link->prod_id[3]) && |
488 | (cvt_ascii_address(dev, s: link->prod_id[3]) == 0)) |
489 | return 0; |
490 | |
491 | /* Workarounds for broken cards start here. */ |
492 | /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */ |
493 | if (!pcmcia_loop_tuple(p_dev: link, CISTPL_VERS_1, loop_tuple: pcmcia_get_versmac, priv_data: dev)) |
494 | return 0; |
495 | |
496 | /* Another possibility: for the EM3288, in a special tuple */ |
497 | rc = -1; |
498 | len = pcmcia_get_tuple(p_dev: link, code: 0x81, buf: &buf); |
499 | if (buf && len >= 13) { |
500 | buf[12] = '\0'; |
501 | if (cvt_ascii_address(dev, s: buf) == 0) |
502 | rc = 0; |
503 | } |
504 | kfree(objp: buf); |
505 | |
506 | return rc; |
507 | }; |
508 | |
509 | /*====================================================================== |
510 | |
511 | Configuration stuff for the Motorola Mariner |
512 | |
513 | mot_config() writes directly to the Mariner configuration |
514 | registers because the CIS is just bogus. |
515 | |
516 | ======================================================================*/ |
517 | |
518 | static void mot_config(struct pcmcia_device *link) |
519 | { |
520 | struct net_device *dev = link->priv; |
521 | struct smc_private *smc = netdev_priv(dev); |
522 | unsigned int ioaddr = dev->base_addr; |
523 | unsigned int iouart = link->resource[1]->start; |
524 | |
525 | /* Set UART base address and force map with COR bit 1 */ |
526 | writeb(val: iouart & 0xff, addr: smc->base + MOT_UART + CISREG_IOBASE_0); |
527 | writeb(val: (iouart >> 8) & 0xff, addr: smc->base + MOT_UART + CISREG_IOBASE_1); |
528 | writeb(MOT_NORMAL, addr: smc->base + MOT_UART + CISREG_COR); |
529 | |
530 | /* Set SMC base address and force map with COR bit 1 */ |
531 | writeb(val: ioaddr & 0xff, addr: smc->base + MOT_LAN + CISREG_IOBASE_0); |
532 | writeb(val: (ioaddr >> 8) & 0xff, addr: smc->base + MOT_LAN + CISREG_IOBASE_1); |
533 | writeb(MOT_NORMAL, addr: smc->base + MOT_LAN + CISREG_COR); |
534 | |
535 | /* Wait for things to settle down */ |
536 | mdelay(100); |
537 | } |
538 | |
539 | static int mot_setup(struct pcmcia_device *link) |
540 | { |
541 | struct net_device *dev = link->priv; |
542 | unsigned int ioaddr = dev->base_addr; |
543 | int i, wait, loop; |
544 | u8 mac[ETH_ALEN]; |
545 | u_int addr; |
546 | |
547 | /* Read Ethernet address from Serial EEPROM */ |
548 | |
549 | for (i = 0; i < 3; i++) { |
550 | SMC_SELECT_BANK(2); |
551 | outw(MOT_EEPROM + i, port: ioaddr + POINTER); |
552 | SMC_SELECT_BANK(1); |
553 | outw(value: (CTL_RELOAD | CTL_EE_SELECT), port: ioaddr + CONTROL); |
554 | |
555 | for (loop = wait = 0; loop < 200; loop++) { |
556 | udelay(10); |
557 | wait = ((CTL_RELOAD | CTL_STORE) & inw(port: ioaddr + CONTROL)); |
558 | if (wait == 0) break; |
559 | } |
560 | |
561 | if (wait) |
562 | return -1; |
563 | |
564 | addr = inw(port: ioaddr + GENERAL); |
565 | mac[2*i] = addr & 0xff; |
566 | mac[2*i+1] = (addr >> 8) & 0xff; |
567 | } |
568 | eth_hw_addr_set(dev, addr: mac); |
569 | |
570 | return 0; |
571 | } |
572 | |
573 | /*====================================================================*/ |
574 | |
575 | static int smc_configcheck(struct pcmcia_device *p_dev, void *priv_data) |
576 | { |
577 | p_dev->resource[0]->end = 16; |
578 | p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; |
579 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; |
580 | |
581 | return pcmcia_request_io(p_dev); |
582 | } |
583 | |
584 | static int smc_config(struct pcmcia_device *link) |
585 | { |
586 | struct net_device *dev = link->priv; |
587 | int i; |
588 | |
589 | link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; |
590 | |
591 | i = pcmcia_loop_config(p_dev: link, conf_check: smc_configcheck, NULL); |
592 | if (!i) |
593 | dev->base_addr = link->resource[0]->start; |
594 | |
595 | return i; |
596 | } |
597 | |
598 | |
599 | static int smc_setup(struct pcmcia_device *link) |
600 | { |
601 | struct net_device *dev = link->priv; |
602 | |
603 | /* Check for a LAN function extension tuple */ |
604 | if (!pcmcia_get_mac_from_cis(p_dev: link, dev)) |
605 | return 0; |
606 | |
607 | /* Try the third string in the Version 1 Version/ID tuple. */ |
608 | if (link->prod_id[2]) { |
609 | if (cvt_ascii_address(dev, s: link->prod_id[2]) == 0) |
610 | return 0; |
611 | } |
612 | return -1; |
613 | } |
614 | |
615 | /*====================================================================*/ |
616 | |
617 | static int osi_config(struct pcmcia_device *link) |
618 | { |
619 | struct net_device *dev = link->priv; |
620 | static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 }; |
621 | int i, j; |
622 | |
623 | link->config_flags |= CONF_ENABLE_SPKR | CONF_ENABLE_IRQ; |
624 | link->resource[0]->end = 64; |
625 | link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; |
626 | link->resource[1]->end = 8; |
627 | |
628 | /* Enable Hard Decode, LAN, Modem */ |
629 | link->io_lines = 16; |
630 | link->config_index = 0x23; |
631 | |
632 | for (i = j = 0; j < 4; j++) { |
633 | link->resource[1]->start = com[j]; |
634 | i = pcmcia_request_io(p_dev: link); |
635 | if (i == 0) |
636 | break; |
637 | } |
638 | if (i != 0) { |
639 | /* Fallback: turn off hard decode */ |
640 | link->config_index = 0x03; |
641 | link->resource[1]->end = 0; |
642 | i = pcmcia_request_io(p_dev: link); |
643 | } |
644 | dev->base_addr = link->resource[0]->start + 0x10; |
645 | return i; |
646 | } |
647 | |
648 | static int osi_load_firmware(struct pcmcia_device *link) |
649 | { |
650 | const struct firmware *fw; |
651 | int i, err; |
652 | |
653 | err = request_firmware(fw: &fw, FIRMWARE_NAME, device: &link->dev); |
654 | if (err) { |
655 | pr_err("Failed to load firmware \"%s\"\n" , FIRMWARE_NAME); |
656 | return err; |
657 | } |
658 | |
659 | /* Download the Seven of Diamonds firmware */ |
660 | for (i = 0; i < fw->size; i++) { |
661 | outb(value: fw->data[i], port: link->resource[0]->start + 2); |
662 | udelay(50); |
663 | } |
664 | release_firmware(fw); |
665 | return err; |
666 | } |
667 | |
668 | static int pcmcia_osi_mac(struct pcmcia_device *p_dev, |
669 | tuple_t *tuple, |
670 | void *priv) |
671 | { |
672 | struct net_device *dev = priv; |
673 | |
674 | if (tuple->TupleDataLen < 8) |
675 | return -EINVAL; |
676 | if (tuple->TupleData[0] != 0x04) |
677 | return -EINVAL; |
678 | |
679 | eth_hw_addr_set(dev, addr: &tuple->TupleData[2]); |
680 | return 0; |
681 | }; |
682 | |
683 | |
684 | static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid) |
685 | { |
686 | struct net_device *dev = link->priv; |
687 | int rc; |
688 | |
689 | /* Read the station address from tuple 0x90, subtuple 0x04 */ |
690 | if (pcmcia_loop_tuple(p_dev: link, code: 0x90, loop_tuple: pcmcia_osi_mac, priv_data: dev)) |
691 | return -1; |
692 | |
693 | if (((manfid == MANFID_OSITECH) && |
694 | (cardid == PRODID_OSITECH_SEVEN)) || |
695 | ((manfid == MANFID_PSION) && |
696 | (cardid == PRODID_PSION_NET100))) { |
697 | rc = osi_load_firmware(link); |
698 | if (rc) |
699 | return rc; |
700 | } else if (manfid == MANFID_OSITECH) { |
701 | /* Make sure both functions are powered up */ |
702 | set_bits(0x300, link->resource[0]->start + OSITECH_AUI_PWR); |
703 | /* Now, turn on the interrupt for both card functions */ |
704 | set_bits(0x300, link->resource[0]->start + OSITECH_RESET_ISR); |
705 | dev_dbg(&link->dev, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n" , |
706 | inw(link->resource[0]->start + OSITECH_AUI_PWR), |
707 | inw(link->resource[0]->start + OSITECH_RESET_ISR)); |
708 | } |
709 | return 0; |
710 | } |
711 | |
712 | static int smc91c92_suspend(struct pcmcia_device *link) |
713 | { |
714 | struct net_device *dev = link->priv; |
715 | |
716 | if (link->open) |
717 | netif_device_detach(dev); |
718 | |
719 | return 0; |
720 | } |
721 | |
722 | static int smc91c92_resume(struct pcmcia_device *link) |
723 | { |
724 | struct net_device *dev = link->priv; |
725 | struct smc_private *smc = netdev_priv(dev); |
726 | int i; |
727 | |
728 | if ((smc->manfid == MANFID_MEGAHERTZ) && |
729 | (smc->cardid == PRODID_MEGAHERTZ_EM3288)) |
730 | mhz_3288_power(link); |
731 | if (smc->manfid == MANFID_MOTOROLA) |
732 | mot_config(link); |
733 | if ((smc->manfid == MANFID_OSITECH) && |
734 | (smc->cardid != PRODID_OSITECH_SEVEN)) { |
735 | /* Power up the card and enable interrupts */ |
736 | set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR); |
737 | set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR); |
738 | } |
739 | if (((smc->manfid == MANFID_OSITECH) && |
740 | (smc->cardid == PRODID_OSITECH_SEVEN)) || |
741 | ((smc->manfid == MANFID_PSION) && |
742 | (smc->cardid == PRODID_PSION_NET100))) { |
743 | i = osi_load_firmware(link); |
744 | if (i) { |
745 | netdev_err(dev, format: "Failed to load firmware\n" ); |
746 | return i; |
747 | } |
748 | } |
749 | if (link->open) { |
750 | smc_reset(dev); |
751 | netif_device_attach(dev); |
752 | } |
753 | |
754 | return 0; |
755 | } |
756 | |
757 | |
758 | /*====================================================================== |
759 | |
760 | This verifies that the chip is some SMC91cXX variant, and returns |
761 | the revision code if successful. Otherwise, it returns -ENODEV. |
762 | |
763 | ======================================================================*/ |
764 | |
765 | static int check_sig(struct pcmcia_device *link) |
766 | { |
767 | struct net_device *dev = link->priv; |
768 | unsigned int ioaddr = dev->base_addr; |
769 | int width; |
770 | u_short s; |
771 | |
772 | SMC_SELECT_BANK(1); |
773 | if (inw(port: ioaddr + BANK_SELECT) >> 8 != 0x33) { |
774 | /* Try powering up the chip */ |
775 | outw(value: 0, port: ioaddr + CONTROL); |
776 | mdelay(55); |
777 | } |
778 | |
779 | /* Try setting bus width */ |
780 | width = (link->resource[0]->flags == IO_DATA_PATH_WIDTH_AUTO); |
781 | s = inb(port: ioaddr + CONFIG); |
782 | if (width) |
783 | s |= CFG_16BIT; |
784 | else |
785 | s &= ~CFG_16BIT; |
786 | outb(value: s, port: ioaddr + CONFIG); |
787 | |
788 | /* Check Base Address Register to make sure bus width is OK */ |
789 | s = inw(port: ioaddr + BASE_ADDR); |
790 | if ((inw(port: ioaddr + BANK_SELECT) >> 8 == 0x33) && |
791 | ((s >> 8) != (s & 0xff))) { |
792 | SMC_SELECT_BANK(3); |
793 | s = inw(port: ioaddr + REVISION); |
794 | return s & 0xff; |
795 | } |
796 | |
797 | if (width) { |
798 | netdev_info(dev, format: "using 8-bit IO window\n" ); |
799 | |
800 | smc91c92_suspend(link); |
801 | pcmcia_fixup_iowidth(p_dev: link); |
802 | smc91c92_resume(link); |
803 | return check_sig(link); |
804 | } |
805 | return -ENODEV; |
806 | } |
807 | |
808 | static int smc91c92_config(struct pcmcia_device *link) |
809 | { |
810 | struct net_device *dev = link->priv; |
811 | struct smc_private *smc = netdev_priv(dev); |
812 | char *name; |
813 | int i, rev, j = 0; |
814 | unsigned int ioaddr; |
815 | u_long mir; |
816 | |
817 | dev_dbg(&link->dev, "smc91c92_config\n" ); |
818 | |
819 | smc->manfid = link->manf_id; |
820 | smc->cardid = link->card_id; |
821 | |
822 | if ((smc->manfid == MANFID_OSITECH) && |
823 | (smc->cardid != PRODID_OSITECH_SEVEN)) { |
824 | i = osi_config(link); |
825 | } else if ((smc->manfid == MANFID_MOTOROLA) || |
826 | ((smc->manfid == MANFID_MEGAHERTZ) && |
827 | ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) || |
828 | (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) { |
829 | i = mhz_mfc_config(link); |
830 | } else { |
831 | i = smc_config(link); |
832 | } |
833 | if (i) |
834 | goto config_failed; |
835 | |
836 | i = pcmcia_request_irq(p_dev: link, handler: smc_interrupt); |
837 | if (i) |
838 | goto config_failed; |
839 | i = pcmcia_enable_device(p_dev: link); |
840 | if (i) |
841 | goto config_failed; |
842 | |
843 | if (smc->manfid == MANFID_MOTOROLA) |
844 | mot_config(link); |
845 | |
846 | dev->irq = link->irq; |
847 | |
848 | if ((if_port >= 0) && (if_port <= 2)) |
849 | dev->if_port = if_port; |
850 | else |
851 | dev_notice(&link->dev, "invalid if_port requested\n" ); |
852 | |
853 | switch (smc->manfid) { |
854 | case MANFID_OSITECH: |
855 | case MANFID_PSION: |
856 | i = osi_setup(link, manfid: smc->manfid, cardid: smc->cardid); break; |
857 | case MANFID_SMC: |
858 | case MANFID_NEW_MEDIA: |
859 | i = smc_setup(link); break; |
860 | case 0x128: /* For broken Megahertz cards */ |
861 | case MANFID_MEGAHERTZ: |
862 | i = mhz_setup(link); break; |
863 | case MANFID_MOTOROLA: |
864 | default: /* get the hw address from EEPROM */ |
865 | i = mot_setup(link); break; |
866 | } |
867 | |
868 | if (i != 0) { |
869 | dev_notice(&link->dev, "Unable to find hardware address.\n" ); |
870 | goto config_failed; |
871 | } |
872 | |
873 | smc->duplex = 0; |
874 | smc->rx_ovrn = 0; |
875 | |
876 | rev = check_sig(link); |
877 | name = "???" ; |
878 | if (rev > 0) |
879 | switch (rev >> 4) { |
880 | case 3: name = "92" ; break; |
881 | case 4: name = ((rev & 15) >= 6) ? "96" : "94" ; break; |
882 | case 5: name = "95" ; break; |
883 | case 7: name = "100" ; break; |
884 | case 8: name = "100-FD" ; break; |
885 | case 9: name = "110" ; break; |
886 | } |
887 | |
888 | ioaddr = dev->base_addr; |
889 | if (rev > 0) { |
890 | u_long mcr; |
891 | SMC_SELECT_BANK(0); |
892 | mir = inw(port: ioaddr + MEMINFO) & 0xff; |
893 | if (mir == 0xff) mir++; |
894 | /* Get scale factor for memory size */ |
895 | mcr = ((rev >> 4) > 3) ? inw(port: ioaddr + MEMCFG) : 0x0200; |
896 | mir *= 128 * (1<<((mcr >> 9) & 7)); |
897 | SMC_SELECT_BANK(1); |
898 | smc->cfg = inw(port: ioaddr + CONFIG) & ~CFG_AUI_SELECT; |
899 | smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC; |
900 | if (smc->manfid == MANFID_OSITECH) |
901 | smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0; |
902 | if ((rev >> 4) >= 7) |
903 | smc->cfg |= CFG_MII_SELECT; |
904 | } else |
905 | mir = 0; |
906 | |
907 | if (smc->cfg & CFG_MII_SELECT) { |
908 | SMC_SELECT_BANK(3); |
909 | |
910 | for (i = 0; i < 32; i++) { |
911 | j = mdio_read(dev, phy_id: i, loc: 1); |
912 | if ((j != 0) && (j != 0xffff)) break; |
913 | } |
914 | smc->mii_if.phy_id = (i < 32) ? i : -1; |
915 | |
916 | SMC_SELECT_BANK(0); |
917 | } |
918 | |
919 | SET_NETDEV_DEV(dev, &link->dev); |
920 | |
921 | if (register_netdev(dev) != 0) { |
922 | dev_err(&link->dev, "register_netdev() failed\n" ); |
923 | goto config_undo; |
924 | } |
925 | |
926 | netdev_info(dev, format: "smc91c%s rev %d: io %#3lx, irq %d, hw_addr %pM\n" , |
927 | name, (rev & 0x0f), dev->base_addr, dev->irq, dev->dev_addr); |
928 | |
929 | if (rev > 0) { |
930 | if (mir & 0x3ff) |
931 | netdev_info(dev, format: " %lu byte" , mir); |
932 | else |
933 | netdev_info(dev, format: " %lu kb" , mir>>10); |
934 | pr_cont(" buffer, %s xcvr\n" , |
935 | (smc->cfg & CFG_MII_SELECT) ? "MII" : if_names[dev->if_port]); |
936 | } |
937 | |
938 | if (smc->cfg & CFG_MII_SELECT) { |
939 | if (smc->mii_if.phy_id != -1) { |
940 | netdev_dbg(dev, " MII transceiver at index %d, status %x\n" , |
941 | smc->mii_if.phy_id, j); |
942 | } else { |
943 | netdev_notice(dev, format: " No MII transceivers found!\n" ); |
944 | } |
945 | } |
946 | return 0; |
947 | |
948 | config_undo: |
949 | unregister_netdev(dev); |
950 | config_failed: |
951 | smc91c92_release(link); |
952 | free_netdev(dev); |
953 | return -ENODEV; |
954 | } /* smc91c92_config */ |
955 | |
956 | static void smc91c92_release(struct pcmcia_device *link) |
957 | { |
958 | dev_dbg(&link->dev, "smc91c92_release\n" ); |
959 | if (link->resource[2]->end) { |
960 | struct net_device *dev = link->priv; |
961 | struct smc_private *smc = netdev_priv(dev); |
962 | iounmap(addr: smc->base); |
963 | } |
964 | pcmcia_disable_device(p_dev: link); |
965 | } |
966 | |
967 | /*====================================================================== |
968 | |
969 | MII interface support for SMC91cXX based cards |
970 | ======================================================================*/ |
971 | |
972 | #define MDIO_SHIFT_CLK 0x04 |
973 | #define MDIO_DATA_OUT 0x01 |
974 | #define MDIO_DIR_WRITE 0x08 |
975 | #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE) |
976 | #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT) |
977 | #define MDIO_DATA_READ 0x02 |
978 | |
979 | static void mdio_sync(unsigned int addr) |
980 | { |
981 | int bits; |
982 | for (bits = 0; bits < 32; bits++) { |
983 | outb(MDIO_DATA_WRITE1, port: addr); |
984 | outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, port: addr); |
985 | } |
986 | } |
987 | |
988 | static int mdio_read(struct net_device *dev, int phy_id, int loc) |
989 | { |
990 | unsigned int addr = dev->base_addr + MGMT; |
991 | u_int cmd = (0x06<<10)|(phy_id<<5)|loc; |
992 | int i, retval = 0; |
993 | |
994 | mdio_sync(addr); |
995 | for (i = 13; i >= 0; i--) { |
996 | int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0; |
997 | outb(value: dat, port: addr); |
998 | outb(value: dat | MDIO_SHIFT_CLK, port: addr); |
999 | } |
1000 | for (i = 19; i > 0; i--) { |
1001 | outb(value: 0, port: addr); |
1002 | retval = (retval << 1) | ((inb(port: addr) & MDIO_DATA_READ) != 0); |
1003 | outb(MDIO_SHIFT_CLK, port: addr); |
1004 | } |
1005 | return (retval>>1) & 0xffff; |
1006 | } |
1007 | |
1008 | static void mdio_write(struct net_device *dev, int phy_id, int loc, int value) |
1009 | { |
1010 | unsigned int addr = dev->base_addr + MGMT; |
1011 | u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value; |
1012 | int i; |
1013 | |
1014 | mdio_sync(addr); |
1015 | for (i = 31; i >= 0; i--) { |
1016 | int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0; |
1017 | outb(value: dat, port: addr); |
1018 | outb(value: dat | MDIO_SHIFT_CLK, port: addr); |
1019 | } |
1020 | for (i = 1; i >= 0; i--) { |
1021 | outb(value: 0, port: addr); |
1022 | outb(MDIO_SHIFT_CLK, port: addr); |
1023 | } |
1024 | } |
1025 | |
1026 | /*====================================================================== |
1027 | |
1028 | The driver core code, most of which should be common with a |
1029 | non-PCMCIA implementation. |
1030 | |
1031 | ======================================================================*/ |
1032 | |
1033 | #ifdef PCMCIA_DEBUG |
1034 | static void smc_dump(struct net_device *dev) |
1035 | { |
1036 | unsigned int ioaddr = dev->base_addr; |
1037 | u_short i, w, save; |
1038 | save = inw(ioaddr + BANK_SELECT); |
1039 | for (w = 0; w < 4; w++) { |
1040 | SMC_SELECT_BANK(w); |
1041 | netdev_dbg(dev, "bank %d: " , w); |
1042 | for (i = 0; i < 14; i += 2) |
1043 | pr_cont(" %04x" , inw(ioaddr + i)); |
1044 | pr_cont("\n" ); |
1045 | } |
1046 | outw(save, ioaddr + BANK_SELECT); |
1047 | } |
1048 | #endif |
1049 | |
1050 | static int smc_open(struct net_device *dev) |
1051 | { |
1052 | struct smc_private *smc = netdev_priv(dev); |
1053 | struct pcmcia_device *link = smc->p_dev; |
1054 | |
1055 | dev_dbg(&link->dev, "%s: smc_open(%p), ID/Window %4.4x.\n" , |
1056 | dev->name, dev, inw(dev->base_addr + BANK_SELECT)); |
1057 | #ifdef PCMCIA_DEBUG |
1058 | smc_dump(dev); |
1059 | #endif |
1060 | |
1061 | /* Check that the PCMCIA card is still here. */ |
1062 | if (!pcmcia_dev_present(p_dev: link)) |
1063 | return -ENODEV; |
1064 | /* Physical device present signature. */ |
1065 | if (check_sig(link) < 0) { |
1066 | netdev_info(dev, format: "Yikes! Bad chip signature!\n" ); |
1067 | return -ENODEV; |
1068 | } |
1069 | link->open++; |
1070 | |
1071 | netif_start_queue(dev); |
1072 | smc->saved_skb = NULL; |
1073 | smc->packets_waiting = 0; |
1074 | |
1075 | smc_reset(dev); |
1076 | timer_setup(&smc->media, media_check, 0); |
1077 | mod_timer(timer: &smc->media, expires: jiffies + HZ); |
1078 | |
1079 | return 0; |
1080 | } /* smc_open */ |
1081 | |
1082 | /*====================================================================*/ |
1083 | |
1084 | static int smc_close(struct net_device *dev) |
1085 | { |
1086 | struct smc_private *smc = netdev_priv(dev); |
1087 | struct pcmcia_device *link = smc->p_dev; |
1088 | unsigned int ioaddr = dev->base_addr; |
1089 | |
1090 | dev_dbg(&link->dev, "%s: smc_close(), status %4.4x.\n" , |
1091 | dev->name, inw(ioaddr + BANK_SELECT)); |
1092 | |
1093 | netif_stop_queue(dev); |
1094 | |
1095 | /* Shut off all interrupts, and turn off the Tx and Rx sections. |
1096 | Don't bother to check for chip present. */ |
1097 | SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */ |
1098 | outw(value: 0, port: ioaddr + INTERRUPT); |
1099 | SMC_SELECT_BANK(0); |
1100 | mask_bits(0xff00, ioaddr + RCR); |
1101 | mask_bits(0xff00, ioaddr + TCR); |
1102 | |
1103 | /* Put the chip into power-down mode. */ |
1104 | SMC_SELECT_BANK(1); |
1105 | outw(CTL_POWERDOWN, port: ioaddr + CONTROL ); |
1106 | |
1107 | link->open--; |
1108 | del_timer_sync(timer: &smc->media); |
1109 | |
1110 | return 0; |
1111 | } /* smc_close */ |
1112 | |
1113 | /*====================================================================== |
1114 | |
1115 | Transfer a packet to the hardware and trigger the packet send. |
1116 | This may be called at either from either the Tx queue code |
1117 | or the interrupt handler. |
1118 | |
1119 | ======================================================================*/ |
1120 | |
1121 | static void smc_hardware_send_packet(struct net_device * dev) |
1122 | { |
1123 | struct smc_private *smc = netdev_priv(dev); |
1124 | struct sk_buff *skb = smc->saved_skb; |
1125 | unsigned int ioaddr = dev->base_addr; |
1126 | u_char packet_no; |
1127 | |
1128 | if (!skb) { |
1129 | netdev_err(dev, format: "In XMIT with no packet to send\n" ); |
1130 | return; |
1131 | } |
1132 | |
1133 | /* There should be a packet slot waiting. */ |
1134 | packet_no = inw(port: ioaddr + PNR_ARR) >> 8; |
1135 | if (packet_no & 0x80) { |
1136 | /* If not, there is a hardware problem! Likely an ejected card. */ |
1137 | netdev_warn(dev, format: "hardware Tx buffer allocation failed, status %#2.2x\n" , |
1138 | packet_no); |
1139 | dev_kfree_skb_irq(skb); |
1140 | smc->saved_skb = NULL; |
1141 | netif_start_queue(dev); |
1142 | return; |
1143 | } |
1144 | |
1145 | dev->stats.tx_bytes += skb->len; |
1146 | /* The card should use the just-allocated buffer. */ |
1147 | outw(value: packet_no, port: ioaddr + PNR_ARR); |
1148 | /* point to the beginning of the packet */ |
1149 | outw(PTR_AUTOINC , port: ioaddr + POINTER); |
1150 | |
1151 | /* Send the packet length (+6 for status, length and ctl byte) |
1152 | and the status word (set to zeros). */ |
1153 | { |
1154 | u_char *buf = skb->data; |
1155 | u_int length = skb->len; /* The chip will pad to ethernet min. */ |
1156 | |
1157 | netdev_dbg(dev, "Trying to xmit packet of length %d\n" , length); |
1158 | |
1159 | /* send the packet length: +6 for status word, length, and ctl */ |
1160 | outw(value: 0, port: ioaddr + DATA_1); |
1161 | outw(value: length + 6, port: ioaddr + DATA_1); |
1162 | outsw(port: ioaddr + DATA_1, addr: buf, count: length >> 1); |
1163 | |
1164 | /* The odd last byte, if there is one, goes in the control word. */ |
1165 | outw(value: (length & 1) ? 0x2000 | buf[length-1] : 0, port: ioaddr + DATA_1); |
1166 | } |
1167 | |
1168 | /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */ |
1169 | outw(value: ((IM_TX_INT|IM_TX_EMPTY_INT)<<8) | |
1170 | (inw(port: ioaddr + INTERRUPT) & 0xff00), |
1171 | port: ioaddr + INTERRUPT); |
1172 | |
1173 | /* The chip does the rest of the work. */ |
1174 | outw(MC_ENQUEUE , port: ioaddr + MMU_CMD); |
1175 | |
1176 | smc->saved_skb = NULL; |
1177 | dev_kfree_skb_irq(skb); |
1178 | netif_trans_update(dev); |
1179 | netif_start_queue(dev); |
1180 | } |
1181 | |
1182 | /*====================================================================*/ |
1183 | |
1184 | static void smc_tx_timeout(struct net_device *dev, unsigned int txqueue) |
1185 | { |
1186 | struct smc_private *smc = netdev_priv(dev); |
1187 | unsigned int ioaddr = dev->base_addr; |
1188 | |
1189 | netdev_notice(dev, format: "transmit timed out, Tx_status %2.2x status %4.4x.\n" , |
1190 | inw(port: ioaddr)&0xff, inw(port: ioaddr + 2)); |
1191 | dev->stats.tx_errors++; |
1192 | smc_reset(dev); |
1193 | netif_trans_update(dev); /* prevent tx timeout */ |
1194 | smc->saved_skb = NULL; |
1195 | netif_wake_queue(dev); |
1196 | } |
1197 | |
1198 | static netdev_tx_t smc_start_xmit(struct sk_buff *skb, |
1199 | struct net_device *dev) |
1200 | { |
1201 | struct smc_private *smc = netdev_priv(dev); |
1202 | unsigned int ioaddr = dev->base_addr; |
1203 | u_short num_pages; |
1204 | short time_out, ir; |
1205 | unsigned long flags; |
1206 | |
1207 | netif_stop_queue(dev); |
1208 | |
1209 | netdev_dbg(dev, "smc_start_xmit(length = %d) called, status %04x\n" , |
1210 | skb->len, inw(ioaddr + 2)); |
1211 | |
1212 | if (smc->saved_skb) { |
1213 | /* THIS SHOULD NEVER HAPPEN. */ |
1214 | dev->stats.tx_aborted_errors++; |
1215 | netdev_dbg(dev, "Internal error -- sent packet while busy\n" ); |
1216 | return NETDEV_TX_BUSY; |
1217 | } |
1218 | smc->saved_skb = skb; |
1219 | |
1220 | num_pages = skb->len >> 8; |
1221 | |
1222 | if (num_pages > 7) { |
1223 | netdev_err(dev, format: "Far too big packet error: %d pages\n" , num_pages); |
1224 | dev_kfree_skb (skb); |
1225 | smc->saved_skb = NULL; |
1226 | dev->stats.tx_dropped++; |
1227 | return NETDEV_TX_OK; /* Do not re-queue this packet. */ |
1228 | } |
1229 | /* A packet is now waiting. */ |
1230 | smc->packets_waiting++; |
1231 | |
1232 | spin_lock_irqsave(&smc->lock, flags); |
1233 | SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */ |
1234 | |
1235 | /* need MC_RESET to keep the memory consistent. errata? */ |
1236 | if (smc->rx_ovrn) { |
1237 | outw(MC_RESET, port: ioaddr + MMU_CMD); |
1238 | smc->rx_ovrn = 0; |
1239 | } |
1240 | |
1241 | /* Allocate the memory; send the packet now if we win. */ |
1242 | outw(MC_ALLOC | num_pages, port: ioaddr + MMU_CMD); |
1243 | for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) { |
1244 | ir = inw(port: ioaddr+INTERRUPT); |
1245 | if (ir & IM_ALLOC_INT) { |
1246 | /* Acknowledge the interrupt, send the packet. */ |
1247 | outw(value: (ir&0xff00) | IM_ALLOC_INT, port: ioaddr + INTERRUPT); |
1248 | smc_hardware_send_packet(dev); /* Send the packet now.. */ |
1249 | spin_unlock_irqrestore(lock: &smc->lock, flags); |
1250 | return NETDEV_TX_OK; |
1251 | } |
1252 | } |
1253 | |
1254 | /* Otherwise defer until the Tx-space-allocated interrupt. */ |
1255 | netdev_dbg(dev, "memory allocation deferred.\n" ); |
1256 | outw(value: (IM_ALLOC_INT << 8) | (ir & 0xff00), port: ioaddr + INTERRUPT); |
1257 | spin_unlock_irqrestore(lock: &smc->lock, flags); |
1258 | |
1259 | return NETDEV_TX_OK; |
1260 | } |
1261 | |
1262 | /*====================================================================== |
1263 | |
1264 | Handle a Tx anomalous event. Entered while in Window 2. |
1265 | |
1266 | ======================================================================*/ |
1267 | |
1268 | static void smc_tx_err(struct net_device * dev) |
1269 | { |
1270 | struct smc_private *smc = netdev_priv(dev); |
1271 | unsigned int ioaddr = dev->base_addr; |
1272 | int saved_packet = inw(port: ioaddr + PNR_ARR) & 0xff; |
1273 | int packet_no = inw(port: ioaddr + FIFO_PORTS) & 0x7f; |
1274 | int tx_status; |
1275 | |
1276 | /* select this as the packet to read from */ |
1277 | outw(value: packet_no, port: ioaddr + PNR_ARR); |
1278 | |
1279 | /* read the first word from this packet */ |
1280 | outw(PTR_AUTOINC | PTR_READ | 0, port: ioaddr + POINTER); |
1281 | |
1282 | tx_status = inw(port: ioaddr + DATA_1); |
1283 | |
1284 | dev->stats.tx_errors++; |
1285 | if (tx_status & TS_LOSTCAR) dev->stats.tx_carrier_errors++; |
1286 | if (tx_status & TS_LATCOL) dev->stats.tx_window_errors++; |
1287 | if (tx_status & TS_16COL) { |
1288 | dev->stats.tx_aborted_errors++; |
1289 | smc->tx_err++; |
1290 | } |
1291 | |
1292 | if (tx_status & TS_SUCCESS) { |
1293 | netdev_notice(dev, format: "Successful packet caused error interrupt?\n" ); |
1294 | } |
1295 | /* re-enable transmit */ |
1296 | SMC_SELECT_BANK(0); |
1297 | outw(inw(port: ioaddr + TCR) | TCR_ENABLE | smc->duplex, port: ioaddr + TCR); |
1298 | SMC_SELECT_BANK(2); |
1299 | |
1300 | outw(MC_FREEPKT, port: ioaddr + MMU_CMD); /* Free the packet memory. */ |
1301 | |
1302 | /* one less packet waiting for me */ |
1303 | smc->packets_waiting--; |
1304 | |
1305 | outw(value: saved_packet, port: ioaddr + PNR_ARR); |
1306 | } |
1307 | |
1308 | /*====================================================================*/ |
1309 | |
1310 | static void smc_eph_irq(struct net_device *dev) |
1311 | { |
1312 | struct smc_private *smc = netdev_priv(dev); |
1313 | unsigned int ioaddr = dev->base_addr; |
1314 | u_short card_stats, ephs; |
1315 | |
1316 | SMC_SELECT_BANK(0); |
1317 | ephs = inw(port: ioaddr + EPH); |
1318 | netdev_dbg(dev, "Ethernet protocol handler interrupt, status %4.4x.\n" , |
1319 | ephs); |
1320 | /* Could be a counter roll-over warning: update stats. */ |
1321 | card_stats = inw(port: ioaddr + COUNTER); |
1322 | /* single collisions */ |
1323 | dev->stats.collisions += card_stats & 0xF; |
1324 | card_stats >>= 4; |
1325 | /* multiple collisions */ |
1326 | dev->stats.collisions += card_stats & 0xF; |
1327 | #if 0 /* These are for when linux supports these statistics */ |
1328 | card_stats >>= 4; /* deferred */ |
1329 | card_stats >>= 4; /* excess deferred */ |
1330 | #endif |
1331 | /* If we had a transmit error we must re-enable the transmitter. */ |
1332 | outw(inw(port: ioaddr + TCR) | TCR_ENABLE | smc->duplex, port: ioaddr + TCR); |
1333 | |
1334 | /* Clear a link error interrupt. */ |
1335 | SMC_SELECT_BANK(1); |
1336 | outw(CTL_AUTO_RELEASE | 0x0000, port: ioaddr + CONTROL); |
1337 | outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE, |
1338 | port: ioaddr + CONTROL); |
1339 | SMC_SELECT_BANK(2); |
1340 | } |
1341 | |
1342 | /*====================================================================*/ |
1343 | |
1344 | static irqreturn_t smc_interrupt(int irq, void *dev_id) |
1345 | { |
1346 | struct net_device *dev = dev_id; |
1347 | struct smc_private *smc = netdev_priv(dev); |
1348 | unsigned int ioaddr; |
1349 | u_short saved_bank, saved_pointer, mask, status; |
1350 | unsigned int handled = 1; |
1351 | char bogus_cnt = INTR_WORK; /* Work we are willing to do. */ |
1352 | |
1353 | if (!netif_device_present(dev)) |
1354 | return IRQ_NONE; |
1355 | |
1356 | ioaddr = dev->base_addr; |
1357 | |
1358 | netdev_dbg(dev, "SMC91c92 interrupt %d at %#x.\n" , |
1359 | irq, ioaddr); |
1360 | |
1361 | spin_lock(lock: &smc->lock); |
1362 | smc->watchdog = 0; |
1363 | saved_bank = inw(port: ioaddr + BANK_SELECT); |
1364 | if ((saved_bank & 0xff00) != 0x3300) { |
1365 | /* The device does not exist -- the card could be off-line, or |
1366 | maybe it has been ejected. */ |
1367 | netdev_dbg(dev, "SMC91c92 interrupt %d for non-existent/ejected device.\n" , |
1368 | irq); |
1369 | handled = 0; |
1370 | goto irq_done; |
1371 | } |
1372 | |
1373 | SMC_SELECT_BANK(2); |
1374 | saved_pointer = inw(port: ioaddr + POINTER); |
1375 | mask = inw(port: ioaddr + INTERRUPT) >> 8; |
1376 | /* clear all interrupts */ |
1377 | outw(value: 0, port: ioaddr + INTERRUPT); |
1378 | |
1379 | do { /* read the status flag, and mask it */ |
1380 | status = inw(port: ioaddr + INTERRUPT) & 0xff; |
1381 | netdev_dbg(dev, "Status is %#2.2x (mask %#2.2x).\n" , |
1382 | status, mask); |
1383 | if ((status & mask) == 0) { |
1384 | if (bogus_cnt == INTR_WORK) |
1385 | handled = 0; |
1386 | break; |
1387 | } |
1388 | if (status & IM_RCV_INT) { |
1389 | /* Got a packet(s). */ |
1390 | smc_rx(dev); |
1391 | } |
1392 | if (status & IM_TX_INT) { |
1393 | smc_tx_err(dev); |
1394 | outw(IM_TX_INT, port: ioaddr + INTERRUPT); |
1395 | } |
1396 | status &= mask; |
1397 | if (status & IM_TX_EMPTY_INT) { |
1398 | outw(IM_TX_EMPTY_INT, port: ioaddr + INTERRUPT); |
1399 | mask &= ~IM_TX_EMPTY_INT; |
1400 | dev->stats.tx_packets += smc->packets_waiting; |
1401 | smc->packets_waiting = 0; |
1402 | } |
1403 | if (status & IM_ALLOC_INT) { |
1404 | /* Clear this interrupt so it doesn't happen again */ |
1405 | mask &= ~IM_ALLOC_INT; |
1406 | |
1407 | smc_hardware_send_packet(dev); |
1408 | |
1409 | /* enable xmit interrupts based on this */ |
1410 | mask |= (IM_TX_EMPTY_INT | IM_TX_INT); |
1411 | |
1412 | /* and let the card send more packets to me */ |
1413 | netif_wake_queue(dev); |
1414 | } |
1415 | if (status & IM_RX_OVRN_INT) { |
1416 | dev->stats.rx_errors++; |
1417 | dev->stats.rx_fifo_errors++; |
1418 | if (smc->duplex) |
1419 | smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */ |
1420 | outw(IM_RX_OVRN_INT, port: ioaddr + INTERRUPT); |
1421 | } |
1422 | if (status & IM_EPH_INT) |
1423 | smc_eph_irq(dev); |
1424 | } while (--bogus_cnt); |
1425 | |
1426 | netdev_dbg(dev, " Restoring saved registers mask %2.2x bank %4.4x pointer %4.4x.\n" , |
1427 | mask, saved_bank, saved_pointer); |
1428 | |
1429 | /* restore state register */ |
1430 | outw(value: (mask<<8), port: ioaddr + INTERRUPT); |
1431 | outw(value: saved_pointer, port: ioaddr + POINTER); |
1432 | SMC_SELECT_BANK(saved_bank); |
1433 | |
1434 | netdev_dbg(dev, "Exiting interrupt IRQ%d.\n" , irq); |
1435 | |
1436 | irq_done: |
1437 | |
1438 | if ((smc->manfid == MANFID_OSITECH) && |
1439 | (smc->cardid != PRODID_OSITECH_SEVEN)) { |
1440 | /* Retrigger interrupt if needed */ |
1441 | mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR); |
1442 | set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR); |
1443 | } |
1444 | if (smc->manfid == MANFID_MOTOROLA) { |
1445 | u_char cor; |
1446 | cor = readb(addr: smc->base + MOT_UART + CISREG_COR); |
1447 | writeb(val: cor & ~COR_IREQ_ENA, addr: smc->base + MOT_UART + CISREG_COR); |
1448 | writeb(val: cor, addr: smc->base + MOT_UART + CISREG_COR); |
1449 | cor = readb(addr: smc->base + MOT_LAN + CISREG_COR); |
1450 | writeb(val: cor & ~COR_IREQ_ENA, addr: smc->base + MOT_LAN + CISREG_COR); |
1451 | writeb(val: cor, addr: smc->base + MOT_LAN + CISREG_COR); |
1452 | } |
1453 | |
1454 | if ((smc->base != NULL) && /* Megahertz MFC's */ |
1455 | (smc->manfid == MANFID_MEGAHERTZ) && |
1456 | (smc->cardid == PRODID_MEGAHERTZ_EM3288)) { |
1457 | |
1458 | u_char tmp; |
1459 | tmp = readb(addr: smc->base+MEGAHERTZ_ISR); |
1460 | tmp = readb(addr: smc->base+MEGAHERTZ_ISR); |
1461 | |
1462 | /* Retrigger interrupt if needed */ |
1463 | writeb(val: tmp, addr: smc->base + MEGAHERTZ_ISR); |
1464 | writeb(val: tmp, addr: smc->base + MEGAHERTZ_ISR); |
1465 | } |
1466 | |
1467 | spin_unlock(lock: &smc->lock); |
1468 | return IRQ_RETVAL(handled); |
1469 | } |
1470 | |
1471 | /*====================================================================*/ |
1472 | |
1473 | static void smc_rx(struct net_device *dev) |
1474 | { |
1475 | unsigned int ioaddr = dev->base_addr; |
1476 | int rx_status; |
1477 | int packet_length; /* Caution: not frame length, rather words |
1478 | to transfer from the chip. */ |
1479 | |
1480 | /* Assertion: we are in Window 2. */ |
1481 | |
1482 | if (inw(port: ioaddr + FIFO_PORTS) & FP_RXEMPTY) { |
1483 | netdev_err(dev, format: "smc_rx() with nothing on Rx FIFO\n" ); |
1484 | return; |
1485 | } |
1486 | |
1487 | /* Reset the read pointer, and read the status and packet length. */ |
1488 | outw(PTR_READ | PTR_RCV | PTR_AUTOINC, port: ioaddr + POINTER); |
1489 | rx_status = inw(port: ioaddr + DATA_1); |
1490 | packet_length = inw(port: ioaddr + DATA_1) & 0x07ff; |
1491 | |
1492 | netdev_dbg(dev, "Receive status %4.4x length %d.\n" , |
1493 | rx_status, packet_length); |
1494 | |
1495 | if (!(rx_status & RS_ERRORS)) { |
1496 | /* do stuff to make a new packet */ |
1497 | struct sk_buff *skb; |
1498 | struct smc_private *smc = netdev_priv(dev); |
1499 | |
1500 | /* Note: packet_length adds 5 or 6 extra bytes here! */ |
1501 | skb = netdev_alloc_skb(dev, length: packet_length+2); |
1502 | |
1503 | if (skb == NULL) { |
1504 | netdev_dbg(dev, "Low memory, packet dropped.\n" ); |
1505 | dev->stats.rx_dropped++; |
1506 | outw(MC_RELEASE, port: ioaddr + MMU_CMD); |
1507 | return; |
1508 | } |
1509 | |
1510 | packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6); |
1511 | skb_reserve(skb, len: 2); |
1512 | insw(port: ioaddr+DATA_1, addr: skb_put(skb, len: packet_length), |
1513 | count: (packet_length+1)>>1); |
1514 | skb->protocol = eth_type_trans(skb, dev); |
1515 | |
1516 | netif_rx(skb); |
1517 | smc->last_rx = jiffies; |
1518 | dev->stats.rx_packets++; |
1519 | dev->stats.rx_bytes += packet_length; |
1520 | if (rx_status & RS_MULTICAST) |
1521 | dev->stats.multicast++; |
1522 | } else { |
1523 | /* error ... */ |
1524 | dev->stats.rx_errors++; |
1525 | |
1526 | if (rx_status & RS_ALGNERR) dev->stats.rx_frame_errors++; |
1527 | if (rx_status & (RS_TOOSHORT | RS_TOOLONG)) |
1528 | dev->stats.rx_length_errors++; |
1529 | if (rx_status & RS_BADCRC) dev->stats.rx_crc_errors++; |
1530 | } |
1531 | /* Let the MMU free the memory of this packet. */ |
1532 | outw(MC_RELEASE, port: ioaddr + MMU_CMD); |
1533 | } |
1534 | |
1535 | /*====================================================================== |
1536 | |
1537 | Set the receive mode. |
1538 | |
1539 | This routine is used by both the protocol level to notify us of |
1540 | promiscuous/multicast mode changes, and by the open/reset code to |
1541 | initialize the Rx registers. We always set the multicast list and |
1542 | leave the receiver running. |
1543 | |
1544 | ======================================================================*/ |
1545 | |
1546 | static void set_rx_mode(struct net_device *dev) |
1547 | { |
1548 | unsigned int ioaddr = dev->base_addr; |
1549 | struct smc_private *smc = netdev_priv(dev); |
1550 | unsigned char multicast_table[8]; |
1551 | unsigned long flags; |
1552 | u_short rx_cfg_setting; |
1553 | int i; |
1554 | |
1555 | memset(multicast_table, 0, sizeof(multicast_table)); |
1556 | |
1557 | if (dev->flags & IFF_PROMISC) { |
1558 | rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti; |
1559 | } else if (dev->flags & IFF_ALLMULTI) |
1560 | rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti; |
1561 | else { |
1562 | if (!netdev_mc_empty(dev)) { |
1563 | struct netdev_hw_addr *ha; |
1564 | |
1565 | netdev_for_each_mc_addr(ha, dev) { |
1566 | u_int position = ether_crc(6, ha->addr); |
1567 | multicast_table[position >> 29] |= 1 << ((position >> 26) & 7); |
1568 | } |
1569 | } |
1570 | rx_cfg_setting = RxStripCRC | RxEnable; |
1571 | } |
1572 | |
1573 | /* Load MC table and Rx setting into the chip without interrupts. */ |
1574 | spin_lock_irqsave(&smc->lock, flags); |
1575 | SMC_SELECT_BANK(3); |
1576 | for (i = 0; i < 8; i++) |
1577 | outb(value: multicast_table[i], port: ioaddr + MULTICAST0 + i); |
1578 | SMC_SELECT_BANK(0); |
1579 | outw(value: rx_cfg_setting, port: ioaddr + RCR); |
1580 | SMC_SELECT_BANK(2); |
1581 | spin_unlock_irqrestore(lock: &smc->lock, flags); |
1582 | } |
1583 | |
1584 | /*====================================================================== |
1585 | |
1586 | Senses when a card's config changes. Here, it's coax or TP. |
1587 | |
1588 | ======================================================================*/ |
1589 | |
1590 | static int s9k_config(struct net_device *dev, struct ifmap *map) |
1591 | { |
1592 | struct smc_private *smc = netdev_priv(dev); |
1593 | if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) { |
1594 | if (smc->cfg & CFG_MII_SELECT) |
1595 | return -EOPNOTSUPP; |
1596 | else if (map->port > 2) |
1597 | return -EINVAL; |
1598 | dev->if_port = map->port; |
1599 | netdev_info(dev, format: "switched to %s port\n" , if_names[dev->if_port]); |
1600 | smc_reset(dev); |
1601 | } |
1602 | return 0; |
1603 | } |
1604 | |
1605 | /*====================================================================== |
1606 | |
1607 | Reset the chip, reloading every register that might be corrupted. |
1608 | |
1609 | ======================================================================*/ |
1610 | |
1611 | /* |
1612 | Set transceiver type, perhaps to something other than what the user |
1613 | specified in dev->if_port. |
1614 | */ |
1615 | static void smc_set_xcvr(struct net_device *dev, int if_port) |
1616 | { |
1617 | struct smc_private *smc = netdev_priv(dev); |
1618 | unsigned int ioaddr = dev->base_addr; |
1619 | u_short saved_bank; |
1620 | |
1621 | saved_bank = inw(port: ioaddr + BANK_SELECT); |
1622 | SMC_SELECT_BANK(1); |
1623 | if (if_port == 2) { |
1624 | outw(value: smc->cfg | CFG_AUI_SELECT, port: ioaddr + CONFIG); |
1625 | if ((smc->manfid == MANFID_OSITECH) && |
1626 | (smc->cardid != PRODID_OSITECH_SEVEN)) |
1627 | set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR); |
1628 | smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002); |
1629 | } else { |
1630 | outw(value: smc->cfg, port: ioaddr + CONFIG); |
1631 | if ((smc->manfid == MANFID_OSITECH) && |
1632 | (smc->cardid != PRODID_OSITECH_SEVEN)) |
1633 | mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR); |
1634 | smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001); |
1635 | } |
1636 | SMC_SELECT_BANK(saved_bank); |
1637 | } |
1638 | |
1639 | static void smc_reset(struct net_device *dev) |
1640 | { |
1641 | unsigned int ioaddr = dev->base_addr; |
1642 | struct smc_private *smc = netdev_priv(dev); |
1643 | int i; |
1644 | |
1645 | netdev_dbg(dev, "smc91c92 reset called.\n" ); |
1646 | |
1647 | /* The first interaction must be a write to bring the chip out |
1648 | of sleep mode. */ |
1649 | SMC_SELECT_BANK(0); |
1650 | /* Reset the chip. */ |
1651 | outw(RCR_SOFTRESET, port: ioaddr + RCR); |
1652 | udelay(10); |
1653 | |
1654 | /* Clear the transmit and receive configuration registers. */ |
1655 | outw(RCR_CLEAR, port: ioaddr + RCR); |
1656 | outw(TCR_CLEAR, port: ioaddr + TCR); |
1657 | |
1658 | /* Set the Window 1 control, configuration and station addr registers. |
1659 | No point in writing the I/O base register ;-> */ |
1660 | SMC_SELECT_BANK(1); |
1661 | /* Automatically release successfully transmitted packets, |
1662 | Accept link errors, counter and Tx error interrupts. */ |
1663 | outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE, |
1664 | port: ioaddr + CONTROL); |
1665 | smc_set_xcvr(dev, if_port: dev->if_port); |
1666 | if ((smc->manfid == MANFID_OSITECH) && |
1667 | (smc->cardid != PRODID_OSITECH_SEVEN)) |
1668 | outw(value: (dev->if_port == 2 ? OSI_AUI_PWR : 0) | |
1669 | (inw(port: ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00), |
1670 | port: ioaddr - 0x10 + OSITECH_AUI_PWR); |
1671 | |
1672 | /* Fill in the physical address. The databook is wrong about the order! */ |
1673 | for (i = 0; i < 6; i += 2) |
1674 | outw(value: (dev->dev_addr[i+1]<<8)+dev->dev_addr[i], |
1675 | port: ioaddr + ADDR0 + i); |
1676 | |
1677 | /* Reset the MMU */ |
1678 | SMC_SELECT_BANK(2); |
1679 | outw(MC_RESET, port: ioaddr + MMU_CMD); |
1680 | outw(value: 0, port: ioaddr + INTERRUPT); |
1681 | |
1682 | /* Re-enable the chip. */ |
1683 | SMC_SELECT_BANK(0); |
1684 | outw(value: ((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) | |
1685 | TCR_ENABLE | TCR_PAD_EN | smc->duplex, port: ioaddr + TCR); |
1686 | set_rx_mode(dev); |
1687 | |
1688 | if (smc->cfg & CFG_MII_SELECT) { |
1689 | SMC_SELECT_BANK(3); |
1690 | |
1691 | /* Reset MII */ |
1692 | mdio_write(dev, phy_id: smc->mii_if.phy_id, loc: 0, value: 0x8000); |
1693 | |
1694 | /* Advertise 100F, 100H, 10F, 10H */ |
1695 | mdio_write(dev, phy_id: smc->mii_if.phy_id, loc: 4, value: 0x01e1); |
1696 | |
1697 | /* Restart MII autonegotiation */ |
1698 | mdio_write(dev, phy_id: smc->mii_if.phy_id, loc: 0, value: 0x0000); |
1699 | mdio_write(dev, phy_id: smc->mii_if.phy_id, loc: 0, value: 0x1200); |
1700 | } |
1701 | |
1702 | /* Enable interrupts. */ |
1703 | SMC_SELECT_BANK(2); |
1704 | outw(value: (IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8, |
1705 | port: ioaddr + INTERRUPT); |
1706 | } |
1707 | |
1708 | /*====================================================================== |
1709 | |
1710 | Media selection timer routine |
1711 | |
1712 | ======================================================================*/ |
1713 | |
1714 | static void media_check(struct timer_list *t) |
1715 | { |
1716 | struct smc_private *smc = from_timer(smc, t, media); |
1717 | struct net_device *dev = smc->mii_if.dev; |
1718 | unsigned int ioaddr = dev->base_addr; |
1719 | u_short i, media, saved_bank; |
1720 | u_short link; |
1721 | unsigned long flags; |
1722 | |
1723 | spin_lock_irqsave(&smc->lock, flags); |
1724 | |
1725 | saved_bank = inw(port: ioaddr + BANK_SELECT); |
1726 | |
1727 | if (!netif_device_present(dev)) |
1728 | goto reschedule; |
1729 | |
1730 | SMC_SELECT_BANK(2); |
1731 | |
1732 | /* need MC_RESET to keep the memory consistent. errata? */ |
1733 | if (smc->rx_ovrn) { |
1734 | outw(MC_RESET, port: ioaddr + MMU_CMD); |
1735 | smc->rx_ovrn = 0; |
1736 | } |
1737 | i = inw(port: ioaddr + INTERRUPT); |
1738 | SMC_SELECT_BANK(0); |
1739 | media = inw(port: ioaddr + EPH) & EPH_LINK_OK; |
1740 | SMC_SELECT_BANK(1); |
1741 | media |= (inw(port: ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1; |
1742 | |
1743 | SMC_SELECT_BANK(saved_bank); |
1744 | spin_unlock_irqrestore(lock: &smc->lock, flags); |
1745 | |
1746 | /* Check for pending interrupt with watchdog flag set: with |
1747 | this, we can limp along even if the interrupt is blocked */ |
1748 | if (smc->watchdog++ && ((i>>8) & i)) { |
1749 | if (!smc->fast_poll) |
1750 | netdev_info(dev, format: "interrupt(s) dropped!\n" ); |
1751 | local_irq_save(flags); |
1752 | smc_interrupt(irq: dev->irq, dev_id: dev); |
1753 | local_irq_restore(flags); |
1754 | smc->fast_poll = HZ; |
1755 | } |
1756 | if (smc->fast_poll) { |
1757 | smc->fast_poll--; |
1758 | smc->media.expires = jiffies + HZ/100; |
1759 | add_timer(timer: &smc->media); |
1760 | return; |
1761 | } |
1762 | |
1763 | spin_lock_irqsave(&smc->lock, flags); |
1764 | |
1765 | saved_bank = inw(port: ioaddr + BANK_SELECT); |
1766 | |
1767 | if (smc->cfg & CFG_MII_SELECT) { |
1768 | if (smc->mii_if.phy_id < 0) |
1769 | goto reschedule; |
1770 | |
1771 | SMC_SELECT_BANK(3); |
1772 | link = mdio_read(dev, phy_id: smc->mii_if.phy_id, loc: 1); |
1773 | if (!link || (link == 0xffff)) { |
1774 | netdev_info(dev, format: "MII is missing!\n" ); |
1775 | smc->mii_if.phy_id = -1; |
1776 | goto reschedule; |
1777 | } |
1778 | |
1779 | link &= 0x0004; |
1780 | if (link != smc->link_status) { |
1781 | u_short p = mdio_read(dev, phy_id: smc->mii_if.phy_id, loc: 5); |
1782 | netdev_info(dev, format: "%s link beat\n" , link ? "found" : "lost" ); |
1783 | smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40)) |
1784 | ? TCR_FDUPLX : 0); |
1785 | if (link) { |
1786 | netdev_info(dev, format: "autonegotiation complete: " |
1787 | "%dbaseT-%cD selected\n" , |
1788 | (p & 0x0180) ? 100 : 10, smc->duplex ? 'F' : 'H'); |
1789 | } |
1790 | SMC_SELECT_BANK(0); |
1791 | outw(inw(port: ioaddr + TCR) | smc->duplex, port: ioaddr + TCR); |
1792 | smc->link_status = link; |
1793 | } |
1794 | goto reschedule; |
1795 | } |
1796 | |
1797 | /* Ignore collisions unless we've had no rx's recently */ |
1798 | if (time_after(jiffies, smc->last_rx + HZ)) { |
1799 | if (smc->tx_err || (smc->media_status & EPH_16COL)) |
1800 | media |= EPH_16COL; |
1801 | } |
1802 | smc->tx_err = 0; |
1803 | |
1804 | if (media != smc->media_status) { |
1805 | if ((media & smc->media_status & 1) && |
1806 | ((smc->media_status ^ media) & EPH_LINK_OK)) |
1807 | netdev_info(dev, format: "%s link beat\n" , |
1808 | smc->media_status & EPH_LINK_OK ? "lost" : "found" ); |
1809 | else if ((media & smc->media_status & 2) && |
1810 | ((smc->media_status ^ media) & EPH_16COL)) |
1811 | netdev_info(dev, format: "coax cable %s\n" , |
1812 | media & EPH_16COL ? "problem" : "ok" ); |
1813 | if (dev->if_port == 0) { |
1814 | if (media & 1) { |
1815 | if (media & EPH_LINK_OK) |
1816 | netdev_info(dev, format: "flipped to 10baseT\n" ); |
1817 | else |
1818 | smc_set_xcvr(dev, if_port: 2); |
1819 | } else { |
1820 | if (media & EPH_16COL) |
1821 | smc_set_xcvr(dev, if_port: 1); |
1822 | else |
1823 | netdev_info(dev, format: "flipped to 10base2\n" ); |
1824 | } |
1825 | } |
1826 | smc->media_status = media; |
1827 | } |
1828 | |
1829 | reschedule: |
1830 | smc->media.expires = jiffies + HZ; |
1831 | add_timer(timer: &smc->media); |
1832 | SMC_SELECT_BANK(saved_bank); |
1833 | spin_unlock_irqrestore(lock: &smc->lock, flags); |
1834 | } |
1835 | |
1836 | static int smc_link_ok(struct net_device *dev) |
1837 | { |
1838 | unsigned int ioaddr = dev->base_addr; |
1839 | struct smc_private *smc = netdev_priv(dev); |
1840 | |
1841 | if (smc->cfg & CFG_MII_SELECT) { |
1842 | return mii_link_ok(mii: &smc->mii_if); |
1843 | } else { |
1844 | SMC_SELECT_BANK(0); |
1845 | return inw(port: ioaddr + EPH) & EPH_LINK_OK; |
1846 | } |
1847 | } |
1848 | |
1849 | static void smc_netdev_get_ecmd(struct net_device *dev, |
1850 | struct ethtool_link_ksettings *ecmd) |
1851 | { |
1852 | u16 tmp; |
1853 | unsigned int ioaddr = dev->base_addr; |
1854 | u32 supported; |
1855 | |
1856 | supported = (SUPPORTED_TP | SUPPORTED_AUI | |
1857 | SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full); |
1858 | |
1859 | SMC_SELECT_BANK(1); |
1860 | tmp = inw(port: ioaddr + CONFIG); |
1861 | ecmd->base.port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP; |
1862 | ecmd->base.speed = SPEED_10; |
1863 | ecmd->base.phy_address = ioaddr + MGMT; |
1864 | |
1865 | SMC_SELECT_BANK(0); |
1866 | tmp = inw(port: ioaddr + TCR); |
1867 | ecmd->base.duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF; |
1868 | |
1869 | ethtool_convert_legacy_u32_to_link_mode(dst: ecmd->link_modes.supported, |
1870 | legacy_u32: supported); |
1871 | } |
1872 | |
1873 | static int smc_netdev_set_ecmd(struct net_device *dev, |
1874 | const struct ethtool_link_ksettings *ecmd) |
1875 | { |
1876 | u16 tmp; |
1877 | unsigned int ioaddr = dev->base_addr; |
1878 | |
1879 | if (ecmd->base.speed != SPEED_10) |
1880 | return -EINVAL; |
1881 | if (ecmd->base.duplex != DUPLEX_HALF && |
1882 | ecmd->base.duplex != DUPLEX_FULL) |
1883 | return -EINVAL; |
1884 | if (ecmd->base.port != PORT_TP && ecmd->base.port != PORT_AUI) |
1885 | return -EINVAL; |
1886 | |
1887 | if (ecmd->base.port == PORT_AUI) |
1888 | smc_set_xcvr(dev, if_port: 1); |
1889 | else |
1890 | smc_set_xcvr(dev, if_port: 0); |
1891 | |
1892 | SMC_SELECT_BANK(0); |
1893 | tmp = inw(port: ioaddr + TCR); |
1894 | if (ecmd->base.duplex == DUPLEX_FULL) |
1895 | tmp |= TCR_FDUPLX; |
1896 | else |
1897 | tmp &= ~TCR_FDUPLX; |
1898 | outw(value: tmp, port: ioaddr + TCR); |
1899 | |
1900 | return 0; |
1901 | } |
1902 | |
1903 | static int check_if_running(struct net_device *dev) |
1904 | { |
1905 | if (!netif_running(dev)) |
1906 | return -EINVAL; |
1907 | return 0; |
1908 | } |
1909 | |
1910 | static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
1911 | { |
1912 | strscpy(p: info->driver, DRV_NAME, size: sizeof(info->driver)); |
1913 | strscpy(p: info->version, DRV_VERSION, size: sizeof(info->version)); |
1914 | } |
1915 | |
1916 | static int smc_get_link_ksettings(struct net_device *dev, |
1917 | struct ethtool_link_ksettings *ecmd) |
1918 | { |
1919 | struct smc_private *smc = netdev_priv(dev); |
1920 | unsigned int ioaddr = dev->base_addr; |
1921 | u16 saved_bank = inw(port: ioaddr + BANK_SELECT); |
1922 | unsigned long flags; |
1923 | |
1924 | spin_lock_irqsave(&smc->lock, flags); |
1925 | SMC_SELECT_BANK(3); |
1926 | if (smc->cfg & CFG_MII_SELECT) |
1927 | mii_ethtool_get_link_ksettings(mii: &smc->mii_if, cmd: ecmd); |
1928 | else |
1929 | smc_netdev_get_ecmd(dev, ecmd); |
1930 | SMC_SELECT_BANK(saved_bank); |
1931 | spin_unlock_irqrestore(lock: &smc->lock, flags); |
1932 | return 0; |
1933 | } |
1934 | |
1935 | static int smc_set_link_ksettings(struct net_device *dev, |
1936 | const struct ethtool_link_ksettings *ecmd) |
1937 | { |
1938 | struct smc_private *smc = netdev_priv(dev); |
1939 | unsigned int ioaddr = dev->base_addr; |
1940 | u16 saved_bank = inw(port: ioaddr + BANK_SELECT); |
1941 | int ret; |
1942 | unsigned long flags; |
1943 | |
1944 | spin_lock_irqsave(&smc->lock, flags); |
1945 | SMC_SELECT_BANK(3); |
1946 | if (smc->cfg & CFG_MII_SELECT) |
1947 | ret = mii_ethtool_set_link_ksettings(mii: &smc->mii_if, cmd: ecmd); |
1948 | else |
1949 | ret = smc_netdev_set_ecmd(dev, ecmd); |
1950 | SMC_SELECT_BANK(saved_bank); |
1951 | spin_unlock_irqrestore(lock: &smc->lock, flags); |
1952 | return ret; |
1953 | } |
1954 | |
1955 | static u32 smc_get_link(struct net_device *dev) |
1956 | { |
1957 | struct smc_private *smc = netdev_priv(dev); |
1958 | unsigned int ioaddr = dev->base_addr; |
1959 | u16 saved_bank = inw(port: ioaddr + BANK_SELECT); |
1960 | u32 ret; |
1961 | unsigned long flags; |
1962 | |
1963 | spin_lock_irqsave(&smc->lock, flags); |
1964 | SMC_SELECT_BANK(3); |
1965 | ret = smc_link_ok(dev); |
1966 | SMC_SELECT_BANK(saved_bank); |
1967 | spin_unlock_irqrestore(lock: &smc->lock, flags); |
1968 | return ret; |
1969 | } |
1970 | |
1971 | static int smc_nway_reset(struct net_device *dev) |
1972 | { |
1973 | struct smc_private *smc = netdev_priv(dev); |
1974 | if (smc->cfg & CFG_MII_SELECT) { |
1975 | unsigned int ioaddr = dev->base_addr; |
1976 | u16 saved_bank = inw(port: ioaddr + BANK_SELECT); |
1977 | int res; |
1978 | |
1979 | SMC_SELECT_BANK(3); |
1980 | res = mii_nway_restart(mii: &smc->mii_if); |
1981 | SMC_SELECT_BANK(saved_bank); |
1982 | |
1983 | return res; |
1984 | } else |
1985 | return -EOPNOTSUPP; |
1986 | } |
1987 | |
1988 | static const struct ethtool_ops ethtool_ops = { |
1989 | .begin = check_if_running, |
1990 | .get_drvinfo = smc_get_drvinfo, |
1991 | .get_link = smc_get_link, |
1992 | .nway_reset = smc_nway_reset, |
1993 | .get_link_ksettings = smc_get_link_ksettings, |
1994 | .set_link_ksettings = smc_set_link_ksettings, |
1995 | }; |
1996 | |
1997 | static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd) |
1998 | { |
1999 | struct smc_private *smc = netdev_priv(dev); |
2000 | struct mii_ioctl_data *mii = if_mii(rq); |
2001 | int rc = 0; |
2002 | u16 saved_bank; |
2003 | unsigned int ioaddr = dev->base_addr; |
2004 | unsigned long flags; |
2005 | |
2006 | if (!netif_running(dev)) |
2007 | return -EINVAL; |
2008 | |
2009 | spin_lock_irqsave(&smc->lock, flags); |
2010 | saved_bank = inw(port: ioaddr + BANK_SELECT); |
2011 | SMC_SELECT_BANK(3); |
2012 | rc = generic_mii_ioctl(mii_if: &smc->mii_if, mii_data: mii, cmd, NULL); |
2013 | SMC_SELECT_BANK(saved_bank); |
2014 | spin_unlock_irqrestore(lock: &smc->lock, flags); |
2015 | return rc; |
2016 | } |
2017 | |
2018 | static const struct pcmcia_device_id smc91c92_ids[] = { |
2019 | PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501), |
2020 | PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a), |
2021 | PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ" , "CC/XJEM3288" , "DATA/FAX/CELL ETHERNET MODEM" , 0xf510db04, 0x04cd2988, 0x46a52d63), |
2022 | PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ" , "CC/XJEM3336" , "DATA/FAX/CELL ETHERNET MODEM" , 0xf510db04, 0x0143b773, 0x46a52d63), |
2023 | PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ" , "EM1144T" , "PCMCIA MODEM" , 0xf510db04, 0x856d66c8, 0xbd6c43ef), |
2024 | PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ" , "XJEM1144/CCEM1144" , "PCMCIA MODEM" , 0xf510db04, 0x52d21e1e, 0xbd6c43ef), |
2025 | PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000" , "XJEM3336" , 0xdd9989be, 0x662c394c), |
2026 | PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ" , "XJEM1144/CCEM1144" , 0xf510db04, 0x52d21e1e), |
2027 | PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech" , "Trumpcard:Jack of Diamonds Modem+Ethernet" , 0xc2f80cd, 0x656947b9), |
2028 | PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech" , "Trumpcard:Jack of Hearts Modem+Ethernet" , 0xc2f80cd, 0xdc9ba5ed), |
2029 | PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020), |
2030 | PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023), |
2031 | PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation" , "Ethernet" , "SMC91C94" , 0x23c78a9d, 0x00b2e941, 0xcef397fb), |
2032 | PCMCIA_DEVICE_PROD_ID12("ARGOSY" , "Fast Ethernet PCCard" , 0x78f308dc, 0xdcea68bc), |
2033 | PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd." , "PC Card-10/100BTX" , 0xe59365c8, 0x6a2161d1), |
2034 | PCMCIA_DEVICE_PROD_ID12("DYNALINK" , "L100C" , 0x6a26d1cf, 0xc16ce9c5), |
2035 | PCMCIA_DEVICE_PROD_ID12("Farallon" , "Farallon Enet" , 0x58d93fc4, 0x244734e9), |
2036 | PCMCIA_DEVICE_PROD_ID12("Megahertz" , "CC10BT/2" , 0x33234748, 0x3c95b953), |
2037 | PCMCIA_DEVICE_PROD_ID12("MELCO/SMC" , "LPC-TX" , 0xa2cd8e6d, 0x42da662a), |
2038 | PCMCIA_DEVICE_PROD_ID12("Ositech" , "Trumpcard:Four of Diamonds Ethernet" , 0xc2f80cd, 0xb3466314), |
2039 | PCMCIA_DEVICE_PROD_ID12("Ositech" , "Trumpcard:Seven of Diamonds Ethernet" , 0xc2f80cd, 0x194b650a), |
2040 | PCMCIA_DEVICE_PROD_ID12("PCMCIA" , "Fast Ethernet PCCard" , 0x281f1c5d, 0xdcea68bc), |
2041 | PCMCIA_DEVICE_PROD_ID12("Psion" , "10Mb Ethernet" , 0x4ef00b21, 0x844be9e9), |
2042 | PCMCIA_DEVICE_PROD_ID12("SMC" , "EtherEZ Ethernet 8020" , 0xc4f8b18b, 0x4a0eeb2d), |
2043 | /* These conflict with other cards! */ |
2044 | /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */ |
2045 | /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */ |
2046 | PCMCIA_DEVICE_NULL, |
2047 | }; |
2048 | MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids); |
2049 | |
2050 | static struct pcmcia_driver smc91c92_cs_driver = { |
2051 | .owner = THIS_MODULE, |
2052 | .name = "smc91c92_cs" , |
2053 | .probe = smc91c92_probe, |
2054 | .remove = smc91c92_detach, |
2055 | .id_table = smc91c92_ids, |
2056 | .suspend = smc91c92_suspend, |
2057 | .resume = smc91c92_resume, |
2058 | }; |
2059 | module_pcmcia_driver(smc91c92_cs_driver); |
2060 | |