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1 | /*====================================================================== |
2 | ||
3 | A PCMCIA ethernet driver for NS8390-based cards | |
4 | ||
5 | This driver supports the D-Link DE-650 and Linksys EthernetCard | |
6 | cards, the newer D-Link and Linksys combo cards, Accton EN2212 | |
7 | cards, the RPTI EP400, and the PreMax PE-200 in non-shared-memory | |
8 | mode, and the IBM Credit Card Adapter, the NE4100, the Thomas | |
9 | Conrad ethernet card, and the Kingston KNE-PCM/x in shared-memory | |
10 | mode. It will also handle the Socket EA card in either mode. | |
11 | ||
12 | Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net | |
13 | ||
14 | pcnet_cs.c 1.153 2003/11/09 18:53:09 | |
15 | ||
16 | The network driver code is based on Donald Becker's NE2000 code: | |
17 | ||
18 | Written 1992,1993 by Donald Becker. | |
19 | Copyright 1993 United States Government as represented by the | |
20 | Director, National Security Agency. This software may be used and | |
21 | distributed according to the terms of the GNU General Public License, | |
22 | incorporated herein by reference. | |
23 | Donald Becker may be reached at becker@scyld.com | |
24 | ||
25 | Based also on Keith Moore's changes to Don Becker's code, for IBM | |
26 | CCAE support. Drivers merged back together, and shared-memory | |
27 | Socket EA support added, by Ken Raeburn, September 1995. | |
28 | ||
29 | ======================================================================*/ | |
30 | ||
31 | #include <linux/kernel.h> | |
32 | #include <linux/module.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/ptrace.h> | |
35 | #include <linux/slab.h> | |
36 | #include <linux/string.h> | |
37 | #include <linux/timer.h> | |
38 | #include <linux/delay.h> | |
39 | #include <linux/ethtool.h> | |
40 | #include <linux/netdevice.h> | |
41 | #include <../drivers/net/8390.h> | |
42 | ||
43 | #include <pcmcia/version.h> | |
44 | #include <pcmcia/cs_types.h> | |
45 | #include <pcmcia/cs.h> | |
46 | #include <pcmcia/cistpl.h> | |
47 | #include <pcmcia/ciscode.h> | |
48 | #include <pcmcia/ds.h> | |
49 | #include <pcmcia/cisreg.h> | |
50 | ||
51 | #include <asm/io.h> | |
52 | #include <asm/system.h> | |
53 | #include <asm/byteorder.h> | |
54 | #include <asm/uaccess.h> | |
55 | ||
56 | #define PCNET_CMD 0x00 | |
57 | #define PCNET_DATAPORT 0x10 /* NatSemi-defined port window offset. */ | |
58 | #define PCNET_RESET 0x1f /* Issue a read to reset, a write to clear. */ | |
59 | #define PCNET_MISC 0x18 /* For IBM CCAE and Socket EA cards */ | |
60 | ||
61 | #define PCNET_START_PG 0x40 /* First page of TX buffer */ | |
62 | #define PCNET_STOP_PG 0x80 /* Last page +1 of RX ring */ | |
63 | ||
64 | /* Socket EA cards have a larger packet buffer */ | |
65 | #define SOCKET_START_PG 0x01 | |
66 | #define SOCKET_STOP_PG 0xff | |
67 | ||
68 | #define PCNET_RDC_TIMEOUT (2*HZ/100) /* Max wait in jiffies for Tx RDC */ | |
69 | ||
70 | static char *if_names[] = { "auto", "10baseT", "10base2"}; | |
71 | ||
72 | #ifdef PCMCIA_DEBUG | |
73 | static int pc_debug = PCMCIA_DEBUG; | |
74 | module_param(pc_debug, int, 0); | |
75 | #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) | |
76 | static char *version = | |
77 | "pcnet_cs.c 1.153 2003/11/09 18:53:09 (David Hinds)"; | |
78 | #else | |
79 | #define DEBUG(n, args...) | |
80 | #endif | |
81 | ||
82 | /*====================================================================*/ | |
83 | ||
84 | /* Module parameters */ | |
85 | ||
86 | MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); | |
87 | MODULE_DESCRIPTION("NE2000 compatible PCMCIA ethernet driver"); | |
88 | MODULE_LICENSE("GPL"); | |
89 | ||
90 | #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0) | |
91 | ||
92 | INT_MODULE_PARM(if_port, 1); /* Transceiver type */ | |
93 | INT_MODULE_PARM(use_big_buf, 1); /* use 64K packet buffer? */ | |
94 | INT_MODULE_PARM(mem_speed, 0); /* shared mem speed, in ns */ | |
95 | INT_MODULE_PARM(delay_output, 0); /* pause after xmit? */ | |
96 | INT_MODULE_PARM(delay_time, 4); /* in usec */ | |
97 | INT_MODULE_PARM(use_shmem, -1); /* use shared memory? */ | |
98 | INT_MODULE_PARM(full_duplex, 0); /* full duplex? */ | |
99 | ||
100 | /* Ugh! Let the user hardwire the hardware address for queer cards */ | |
101 | static int hw_addr[6] = { 0, /* ... */ }; | |
102 | module_param_array(hw_addr, int, NULL, 0); | |
103 | ||
104 | /*====================================================================*/ | |
105 | ||
106 | static void mii_phy_probe(struct net_device *dev); | |
107 | static void pcnet_config(dev_link_t *link); | |
108 | static void pcnet_release(dev_link_t *link); | |
109 | static int pcnet_event(event_t event, int priority, | |
110 | event_callback_args_t *args); | |
111 | static int pcnet_open(struct net_device *dev); | |
112 | static int pcnet_close(struct net_device *dev); | |
113 | static int ei_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); | |
114 | static struct ethtool_ops netdev_ethtool_ops; | |
115 | static irqreturn_t ei_irq_wrapper(int irq, void *dev_id, struct pt_regs *regs); | |
116 | static void ei_watchdog(u_long arg); | |
117 | static void pcnet_reset_8390(struct net_device *dev); | |
118 | static int set_config(struct net_device *dev, struct ifmap *map); | |
119 | static int setup_shmem_window(dev_link_t *link, int start_pg, | |
120 | int stop_pg, int cm_offset); | |
121 | static int setup_dma_config(dev_link_t *link, int start_pg, | |
122 | int stop_pg); | |
123 | ||
124 | static dev_link_t *pcnet_attach(void); | |
125 | static void pcnet_detach(dev_link_t *); | |
126 | ||
127 | static dev_info_t dev_info = "pcnet_cs"; | |
128 | static dev_link_t *dev_list; | |
129 | ||
130 | /*====================================================================*/ | |
131 | ||
132 | typedef struct hw_info_t { | |
133 | u_int offset; | |
134 | u_char a0, a1, a2; | |
135 | u_int flags; | |
136 | } hw_info_t; | |
137 | ||
138 | #define DELAY_OUTPUT 0x01 | |
139 | #define HAS_MISC_REG 0x02 | |
140 | #define USE_BIG_BUF 0x04 | |
141 | #define HAS_IBM_MISC 0x08 | |
142 | #define IS_DL10019 0x10 | |
143 | #define IS_DL10022 0x20 | |
144 | #define HAS_MII 0x40 | |
145 | #define USE_SHMEM 0x80 /* autodetected */ | |
146 | ||
147 | #define AM79C9XX_HOME_PHY 0x00006B90 /* HomePNA PHY */ | |
148 | #define AM79C9XX_ETH_PHY 0x00006B70 /* 10baseT PHY */ | |
149 | #define MII_PHYID_REV_MASK 0xfffffff0 | |
150 | #define MII_PHYID_REG1 0x02 | |
151 | #define MII_PHYID_REG2 0x03 | |
152 | ||
153 | static hw_info_t hw_info[] = { | |
154 | { /* Accton EN2212 */ 0x0ff0, 0x00, 0x00, 0xe8, DELAY_OUTPUT }, | |
155 | { /* Allied Telesis LA-PCM */ 0x0ff0, 0x00, 0x00, 0xf4, 0 }, | |
156 | { /* APEX MultiCard */ 0x03f4, 0x00, 0x20, 0xe5, 0 }, | |
157 | { /* ASANTE FriendlyNet */ 0x4910, 0x00, 0x00, 0x94, | |
158 | DELAY_OUTPUT | HAS_IBM_MISC }, | |
159 | { /* Danpex EN-6200P2 */ 0x0110, 0x00, 0x40, 0xc7, 0 }, | |
160 | { /* DataTrek NetCard */ 0x0ff0, 0x00, 0x20, 0xe8, 0 }, | |
161 | { /* Dayna CommuniCard E */ 0x0110, 0x00, 0x80, 0x19, 0 }, | |
162 | { /* D-Link DE-650 */ 0x0040, 0x00, 0x80, 0xc8, 0 }, | |
163 | { /* EP-210 Ethernet */ 0x0110, 0x00, 0x40, 0x33, 0 }, | |
164 | { /* EP4000 Ethernet */ 0x01c0, 0x00, 0x00, 0xb4, 0 }, | |
165 | { /* Epson EEN10B */ 0x0ff0, 0x00, 0x00, 0x48, | |
166 | HAS_MISC_REG | HAS_IBM_MISC }, | |
167 | { /* ELECOM Laneed LD-CDWA */ 0xb8, 0x08, 0x00, 0x42, 0 }, | |
168 | { /* Hypertec Ethernet */ 0x01c0, 0x00, 0x40, 0x4c, 0 }, | |
169 | { /* IBM CCAE */ 0x0ff0, 0x08, 0x00, 0x5a, | |
170 | HAS_MISC_REG | HAS_IBM_MISC }, | |
171 | { /* IBM CCAE */ 0x0ff0, 0x00, 0x04, 0xac, | |
172 | HAS_MISC_REG | HAS_IBM_MISC }, | |
173 | { /* IBM CCAE */ 0x0ff0, 0x00, 0x06, 0x29, | |
174 | HAS_MISC_REG | HAS_IBM_MISC }, | |
175 | { /* IBM FME */ 0x0374, 0x08, 0x00, 0x5a, | |
176 | HAS_MISC_REG | HAS_IBM_MISC }, | |
177 | { /* IBM FME */ 0x0374, 0x00, 0x04, 0xac, | |
178 | HAS_MISC_REG | HAS_IBM_MISC }, | |
179 | { /* Kansai KLA-PCM/T */ 0x0ff0, 0x00, 0x60, 0x87, | |
180 | HAS_MISC_REG | HAS_IBM_MISC }, | |
181 | { /* NSC DP83903 */ 0x0374, 0x08, 0x00, 0x17, | |
182 | HAS_MISC_REG | HAS_IBM_MISC }, | |
183 | { /* NSC DP83903 */ 0x0374, 0x00, 0xc0, 0xa8, | |
184 | HAS_MISC_REG | HAS_IBM_MISC }, | |
185 | { /* NSC DP83903 */ 0x0374, 0x00, 0xa0, 0xb0, | |
186 | HAS_MISC_REG | HAS_IBM_MISC }, | |
187 | { /* NSC DP83903 */ 0x0198, 0x00, 0x20, 0xe0, | |
188 | HAS_MISC_REG | HAS_IBM_MISC }, | |
189 | { /* I-O DATA PCLA/T */ 0x0ff0, 0x00, 0xa0, 0xb0, 0 }, | |
190 | { /* Katron PE-520 */ 0x0110, 0x00, 0x40, 0xf6, 0 }, | |
191 | { /* Kingston KNE-PCM/x */ 0x0ff0, 0x00, 0xc0, 0xf0, | |
192 | HAS_MISC_REG | HAS_IBM_MISC }, | |
193 | { /* Kingston KNE-PCM/x */ 0x0ff0, 0xe2, 0x0c, 0x0f, | |
194 | HAS_MISC_REG | HAS_IBM_MISC }, | |
195 | { /* Kingston KNE-PC2 */ 0x0180, 0x00, 0xc0, 0xf0, 0 }, | |
196 | { /* Maxtech PCN2000 */ 0x5000, 0x00, 0x00, 0xe8, 0 }, | |
197 | { /* NDC Instant-Link */ 0x003a, 0x00, 0x80, 0xc6, 0 }, | |
198 | { /* NE2000 Compatible */ 0x0ff0, 0x00, 0xa0, 0x0c, 0 }, | |
199 | { /* Network General Sniffer */ 0x0ff0, 0x00, 0x00, 0x65, | |
200 | HAS_MISC_REG | HAS_IBM_MISC }, | |
201 | { /* Panasonic VEL211 */ 0x0ff0, 0x00, 0x80, 0x45, | |
202 | HAS_MISC_REG | HAS_IBM_MISC }, | |
203 | { /* PreMax PE-200 */ 0x07f0, 0x00, 0x20, 0xe0, 0 }, | |
204 | { /* RPTI EP400 */ 0x0110, 0x00, 0x40, 0x95, 0 }, | |
205 | { /* SCM Ethernet */ 0x0ff0, 0x00, 0x20, 0xcb, 0 }, | |
206 | { /* Socket EA */ 0x4000, 0x00, 0xc0, 0x1b, | |
207 | DELAY_OUTPUT | HAS_MISC_REG | USE_BIG_BUF }, | |
208 | { /* Socket LP-E CF+ */ 0x01c0, 0x00, 0xc0, 0x1b, 0 }, | |
209 | { /* SuperSocket RE450T */ 0x0110, 0x00, 0xe0, 0x98, 0 }, | |
210 | { /* Volktek NPL-402CT */ 0x0060, 0x00, 0x40, 0x05, 0 }, | |
211 | { /* NEC PC-9801N-J12 */ 0x0ff0, 0x00, 0x00, 0x4c, 0 }, | |
212 | { /* PCMCIA Technology OEM */ 0x01c8, 0x00, 0xa0, 0x0c, 0 } | |
213 | }; | |
214 | ||
215 | #define NR_INFO (sizeof(hw_info)/sizeof(hw_info_t)) | |
216 | ||
217 | static hw_info_t default_info = { 0, 0, 0, 0, 0 }; | |
218 | static hw_info_t dl10019_info = { 0, 0, 0, 0, IS_DL10019|HAS_MII }; | |
219 | static hw_info_t dl10022_info = { 0, 0, 0, 0, IS_DL10022|HAS_MII }; | |
220 | ||
221 | typedef struct pcnet_dev_t { | |
222 | dev_link_t link; | |
223 | dev_node_t node; | |
224 | u_int flags; | |
225 | void __iomem *base; | |
226 | struct timer_list watchdog; | |
227 | int stale, fast_poll; | |
228 | u_char phy_id; | |
229 | u_char eth_phy, pna_phy; | |
230 | u_short link_status; | |
231 | u_long mii_reset; | |
232 | } pcnet_dev_t; | |
233 | ||
234 | static inline pcnet_dev_t *PRIV(struct net_device *dev) | |
235 | { | |
236 | char *p = netdev_priv(dev); | |
237 | return (pcnet_dev_t *)(p + sizeof(struct ei_device)); | |
238 | } | |
239 | ||
240 | /*====================================================================== | |
241 | ||
242 | pcnet_attach() creates an "instance" of the driver, allocating | |
243 | local data structures for one device. The device is registered | |
244 | with Card Services. | |
245 | ||
246 | ======================================================================*/ | |
247 | ||
248 | static dev_link_t *pcnet_attach(void) | |
249 | { | |
250 | pcnet_dev_t *info; | |
251 | dev_link_t *link; | |
252 | struct net_device *dev; | |
253 | client_reg_t client_reg; | |
254 | int ret; | |
255 | ||
256 | DEBUG(0, "pcnet_attach()\n"); | |
257 | ||
258 | /* Create new ethernet device */ | |
259 | dev = __alloc_ei_netdev(sizeof(pcnet_dev_t)); | |
260 | if (!dev) return NULL; | |
261 | info = PRIV(dev); | |
262 | link = &info->link; | |
263 | link->priv = dev; | |
264 | ||
265 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; | |
266 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; | |
267 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
268 | link->conf.IntType = INT_MEMORY_AND_IO; | |
269 | ||
270 | SET_MODULE_OWNER(dev); | |
271 | dev->open = &pcnet_open; | |
272 | dev->stop = &pcnet_close; | |
273 | dev->set_config = &set_config; | |
274 | ||
275 | /* Register with Card Services */ | |
276 | link->next = dev_list; | |
277 | dev_list = link; | |
278 | client_reg.dev_info = &dev_info; | |
279 | client_reg.EventMask = | |
280 | CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL | | |
281 | CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET | | |
282 | CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME; | |
283 | client_reg.event_handler = &pcnet_event; | |
284 | client_reg.Version = 0x0210; | |
285 | client_reg.event_callback_args.client_data = link; | |
286 | ret = pcmcia_register_client(&link->handle, &client_reg); | |
287 | if (ret != CS_SUCCESS) { | |
288 | cs_error(link->handle, RegisterClient, ret); | |
289 | pcnet_detach(link); | |
290 | return NULL; | |
291 | } | |
292 | ||
293 | return link; | |
294 | } /* pcnet_attach */ | |
295 | ||
296 | /*====================================================================== | |
297 | ||
298 | This deletes a driver "instance". The device is de-registered | |
299 | with Card Services. If it has been released, all local data | |
300 | structures are freed. Otherwise, the structures will be freed | |
301 | when the device is released. | |
302 | ||
303 | ======================================================================*/ | |
304 | ||
305 | static void pcnet_detach(dev_link_t *link) | |
306 | { | |
307 | struct net_device *dev = link->priv; | |
308 | dev_link_t **linkp; | |
309 | ||
310 | DEBUG(0, "pcnet_detach(0x%p)\n", link); | |
311 | ||
312 | /* Locate device structure */ | |
313 | for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) | |
314 | if (*linkp == link) break; | |
315 | if (*linkp == NULL) | |
316 | return; | |
317 | ||
318 | if (link->dev) | |
319 | unregister_netdev(dev); | |
320 | ||
321 | if (link->state & DEV_CONFIG) | |
322 | pcnet_release(link); | |
323 | ||
324 | if (link->handle) | |
325 | pcmcia_deregister_client(link->handle); | |
326 | ||
327 | /* Unlink device structure, free bits */ | |
328 | *linkp = link->next; | |
329 | free_netdev(dev); | |
330 | } /* pcnet_detach */ | |
331 | ||
332 | /*====================================================================== | |
333 | ||
334 | This probes for a card's hardware address, for card types that | |
335 | encode this information in their CIS. | |
336 | ||
337 | ======================================================================*/ | |
338 | ||
339 | static hw_info_t *get_hwinfo(dev_link_t *link) | |
340 | { | |
341 | struct net_device *dev = link->priv; | |
342 | win_req_t req; | |
343 | memreq_t mem; | |
344 | u_char __iomem *base, *virt; | |
345 | int i, j; | |
346 | ||
347 | /* Allocate a small memory window */ | |
348 | req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE; | |
349 | req.Base = 0; req.Size = 0; | |
350 | req.AccessSpeed = 0; | |
351 | i = pcmcia_request_window(&link->handle, &req, &link->win); | |
352 | if (i != CS_SUCCESS) { | |
353 | cs_error(link->handle, RequestWindow, i); | |
354 | return NULL; | |
355 | } | |
356 | ||
357 | virt = ioremap(req.Base, req.Size); | |
358 | mem.Page = 0; | |
359 | for (i = 0; i < NR_INFO; i++) { | |
360 | mem.CardOffset = hw_info[i].offset & ~(req.Size-1); | |
361 | pcmcia_map_mem_page(link->win, &mem); | |
362 | base = &virt[hw_info[i].offset & (req.Size-1)]; | |
363 | if ((readb(base+0) == hw_info[i].a0) && | |
364 | (readb(base+2) == hw_info[i].a1) && | |
365 | (readb(base+4) == hw_info[i].a2)) | |
366 | break; | |
367 | } | |
368 | if (i < NR_INFO) { | |
369 | for (j = 0; j < 6; j++) | |
370 | dev->dev_addr[j] = readb(base + (j<<1)); | |
371 | } | |
372 | ||
373 | iounmap(virt); | |
374 | j = pcmcia_release_window(link->win); | |
375 | if (j != CS_SUCCESS) | |
376 | cs_error(link->handle, ReleaseWindow, j); | |
377 | return (i < NR_INFO) ? hw_info+i : NULL; | |
378 | } /* get_hwinfo */ | |
379 | ||
380 | /*====================================================================== | |
381 | ||
382 | This probes for a card's hardware address by reading the PROM. | |
383 | It checks the address against a list of known types, then falls | |
384 | back to a simple NE2000 clone signature check. | |
385 | ||
386 | ======================================================================*/ | |
387 | ||
388 | static hw_info_t *get_prom(dev_link_t *link) | |
389 | { | |
390 | struct net_device *dev = link->priv; | |
391 | kio_addr_t ioaddr = dev->base_addr; | |
392 | u_char prom[32]; | |
393 | int i, j; | |
394 | ||
395 | /* This is lifted straight from drivers/net/ne.c */ | |
396 | struct { | |
397 | u_char value, offset; | |
398 | } program_seq[] = { | |
399 | {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/ | |
400 | {0x48, EN0_DCFG}, /* Set byte-wide (0x48) access. */ | |
401 | {0x00, EN0_RCNTLO}, /* Clear the count regs. */ | |
402 | {0x00, EN0_RCNTHI}, | |
403 | {0x00, EN0_IMR}, /* Mask completion irq. */ | |
404 | {0xFF, EN0_ISR}, | |
405 | {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */ | |
406 | {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ | |
407 | {32, EN0_RCNTLO}, | |
408 | {0x00, EN0_RCNTHI}, | |
409 | {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */ | |
410 | {0x00, EN0_RSARHI}, | |
411 | {E8390_RREAD+E8390_START, E8390_CMD}, | |
412 | }; | |
413 | ||
414 | pcnet_reset_8390(dev); | |
415 | mdelay(10); | |
416 | ||
417 | for (i = 0; i < sizeof(program_seq)/sizeof(program_seq[0]); i++) | |
418 | outb_p(program_seq[i].value, ioaddr + program_seq[i].offset); | |
419 | ||
420 | for (i = 0; i < 32; i++) | |
421 | prom[i] = inb(ioaddr + PCNET_DATAPORT); | |
422 | for (i = 0; i < NR_INFO; i++) { | |
423 | if ((prom[0] == hw_info[i].a0) && | |
424 | (prom[2] == hw_info[i].a1) && | |
425 | (prom[4] == hw_info[i].a2)) | |
426 | break; | |
427 | } | |
428 | if ((i < NR_INFO) || ((prom[28] == 0x57) && (prom[30] == 0x57))) { | |
429 | for (j = 0; j < 6; j++) | |
430 | dev->dev_addr[j] = prom[j<<1]; | |
431 | return (i < NR_INFO) ? hw_info+i : &default_info; | |
432 | } | |
433 | return NULL; | |
434 | } /* get_prom */ | |
435 | ||
436 | /*====================================================================== | |
437 | ||
438 | For DL10019 based cards, like the Linksys EtherFast | |
439 | ||
440 | ======================================================================*/ | |
441 | ||
442 | static hw_info_t *get_dl10019(dev_link_t *link) | |
443 | { | |
444 | struct net_device *dev = link->priv; | |
445 | int i; | |
446 | u_char sum; | |
447 | ||
448 | for (sum = 0, i = 0x14; i < 0x1c; i++) | |
449 | sum += inb_p(dev->base_addr + i); | |
450 | if (sum != 0xff) | |
451 | return NULL; | |
452 | for (i = 0; i < 6; i++) | |
453 | dev->dev_addr[i] = inb_p(dev->base_addr + 0x14 + i); | |
454 | i = inb(dev->base_addr + 0x1f); | |
455 | return ((i == 0x91)||(i == 0x99)) ? &dl10022_info : &dl10019_info; | |
456 | } | |
457 | ||
458 | /*====================================================================== | |
459 | ||
460 | For Asix AX88190 based cards | |
461 | ||
462 | ======================================================================*/ | |
463 | ||
464 | static hw_info_t *get_ax88190(dev_link_t *link) | |
465 | { | |
466 | struct net_device *dev = link->priv; | |
467 | kio_addr_t ioaddr = dev->base_addr; | |
468 | int i, j; | |
469 | ||
470 | /* Not much of a test, but the alternatives are messy */ | |
471 | if (link->conf.ConfigBase != 0x03c0) | |
472 | return NULL; | |
473 | ||
474 | outb_p(0x01, ioaddr + EN0_DCFG); /* Set word-wide access. */ | |
475 | outb_p(0x00, ioaddr + EN0_RSARLO); /* DMA starting at 0x0400. */ | |
476 | outb_p(0x04, ioaddr + EN0_RSARHI); | |
477 | outb_p(E8390_RREAD+E8390_START, ioaddr + E8390_CMD); | |
478 | ||
479 | for (i = 0; i < 6; i += 2) { | |
480 | j = inw(ioaddr + PCNET_DATAPORT); | |
481 | dev->dev_addr[i] = j & 0xff; | |
482 | dev->dev_addr[i+1] = j >> 8; | |
483 | } | |
484 | printk(KERN_NOTICE "pcnet_cs: this is an AX88190 card!\n"); | |
485 | printk(KERN_NOTICE "pcnet_cs: use axnet_cs instead.\n"); | |
486 | return NULL; | |
487 | } | |
488 | ||
489 | /*====================================================================== | |
490 | ||
491 | This should be totally unnecessary... but when we can't figure | |
492 | out the hardware address any other way, we'll let the user hard | |
493 | wire it when the module is initialized. | |
494 | ||
495 | ======================================================================*/ | |
496 | ||
497 | static hw_info_t *get_hwired(dev_link_t *link) | |
498 | { | |
499 | struct net_device *dev = link->priv; | |
500 | int i; | |
501 | ||
502 | for (i = 0; i < 6; i++) | |
503 | if (hw_addr[i] != 0) break; | |
504 | if (i == 6) | |
505 | return NULL; | |
506 | ||
507 | for (i = 0; i < 6; i++) | |
508 | dev->dev_addr[i] = hw_addr[i]; | |
509 | ||
510 | return &default_info; | |
511 | } /* get_hwired */ | |
512 | ||
513 | /*====================================================================== | |
514 | ||
515 | pcnet_config() is scheduled to run after a CARD_INSERTION event | |
516 | is received, to configure the PCMCIA socket, and to make the | |
517 | ethernet device available to the system. | |
518 | ||
519 | ======================================================================*/ | |
520 | ||
521 | #define CS_CHECK(fn, ret) \ | |
522 | do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) | |
523 | ||
524 | static int try_io_port(dev_link_t *link) | |
525 | { | |
526 | int j, ret; | |
527 | if (link->io.NumPorts1 == 32) { | |
528 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | |
529 | if (link->io.NumPorts2 > 0) { | |
530 | /* for master/slave multifunction cards */ | |
531 | link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; | |
532 | link->irq.Attributes = | |
533 | IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED; | |
534 | } | |
535 | } else { | |
536 | /* This should be two 16-port windows */ | |
537 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
538 | link->io.Attributes2 = IO_DATA_PATH_WIDTH_16; | |
539 | } | |
540 | if (link->io.BasePort1 == 0) { | |
541 | link->io.IOAddrLines = 16; | |
542 | for (j = 0; j < 0x400; j += 0x20) { | |
543 | link->io.BasePort1 = j ^ 0x300; | |
544 | link->io.BasePort2 = (j ^ 0x300) + 0x10; | |
545 | ret = pcmcia_request_io(link->handle, &link->io); | |
546 | if (ret == CS_SUCCESS) return ret; | |
547 | } | |
548 | return ret; | |
549 | } else { | |
550 | return pcmcia_request_io(link->handle, &link->io); | |
551 | } | |
552 | } | |
553 | ||
554 | static void pcnet_config(dev_link_t *link) | |
555 | { | |
556 | client_handle_t handle = link->handle; | |
557 | struct net_device *dev = link->priv; | |
558 | pcnet_dev_t *info = PRIV(dev); | |
559 | tuple_t tuple; | |
560 | cisparse_t parse; | |
561 | int i, last_ret, last_fn, start_pg, stop_pg, cm_offset; | |
562 | int manfid = 0, prodid = 0, has_shmem = 0; | |
563 | u_short buf[64]; | |
564 | config_info_t conf; | |
565 | hw_info_t *hw_info; | |
566 | ||
567 | DEBUG(0, "pcnet_config(0x%p)\n", link); | |
568 | ||
569 | tuple.Attributes = 0; | |
570 | tuple.TupleData = (cisdata_t *)buf; | |
571 | tuple.TupleDataMax = sizeof(buf); | |
572 | tuple.TupleOffset = 0; | |
573 | tuple.DesiredTuple = CISTPL_CONFIG; | |
574 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); | |
575 | CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); | |
576 | CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse)); | |
577 | link->conf.ConfigBase = parse.config.base; | |
578 | link->conf.Present = parse.config.rmask[0]; | |
579 | ||
580 | /* Configure card */ | |
581 | link->state |= DEV_CONFIG; | |
582 | ||
583 | /* Look up current Vcc */ | |
584 | CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf)); | |
585 | link->conf.Vcc = conf.Vcc; | |
586 | ||
587 | tuple.DesiredTuple = CISTPL_MANFID; | |
588 | tuple.Attributes = TUPLE_RETURN_COMMON; | |
589 | if ((pcmcia_get_first_tuple(handle, &tuple) == CS_SUCCESS) && | |
590 | (pcmcia_get_tuple_data(handle, &tuple) == CS_SUCCESS)) { | |
591 | manfid = le16_to_cpu(buf[0]); | |
592 | prodid = le16_to_cpu(buf[1]); | |
593 | } | |
594 | ||
595 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
596 | tuple.Attributes = 0; | |
597 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); | |
598 | while (last_ret == CS_SUCCESS) { | |
599 | cistpl_cftable_entry_t *cfg = &(parse.cftable_entry); | |
600 | cistpl_io_t *io = &(parse.cftable_entry.io); | |
601 | ||
602 | if (pcmcia_get_tuple_data(handle, &tuple) != 0 || | |
603 | pcmcia_parse_tuple(handle, &tuple, &parse) != 0 || | |
604 | cfg->index == 0 || cfg->io.nwin == 0) | |
605 | goto next_entry; | |
606 | ||
607 | link->conf.ConfigIndex = cfg->index; | |
608 | /* For multifunction cards, by convention, we configure the | |
609 | network function with window 0, and serial with window 1 */ | |
610 | if (io->nwin > 1) { | |
611 | i = (io->win[1].len > io->win[0].len); | |
612 | link->io.BasePort2 = io->win[1-i].base; | |
613 | link->io.NumPorts2 = io->win[1-i].len; | |
614 | } else { | |
615 | i = link->io.NumPorts2 = 0; | |
616 | } | |
617 | has_shmem = ((cfg->mem.nwin == 1) && | |
618 | (cfg->mem.win[0].len >= 0x4000)); | |
619 | link->io.BasePort1 = io->win[i].base; | |
620 | link->io.NumPorts1 = io->win[i].len; | |
621 | link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; | |
622 | if (link->io.NumPorts1 + link->io.NumPorts2 >= 32) { | |
623 | last_ret = try_io_port(link); | |
624 | if (last_ret == CS_SUCCESS) break; | |
625 | } | |
626 | next_entry: | |
627 | last_ret = pcmcia_get_next_tuple(handle, &tuple); | |
628 | } | |
629 | if (last_ret != CS_SUCCESS) { | |
630 | cs_error(handle, RequestIO, last_ret); | |
631 | goto failed; | |
632 | } | |
633 | ||
634 | CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq)); | |
635 | ||
636 | if (link->io.NumPorts2 == 8) { | |
637 | link->conf.Attributes |= CONF_ENABLE_SPKR; | |
638 | link->conf.Status = CCSR_AUDIO_ENA; | |
639 | } | |
640 | if ((manfid == MANFID_IBM) && | |
641 | (prodid == PRODID_IBM_HOME_AND_AWAY)) | |
642 | link->conf.ConfigIndex |= 0x10; | |
643 | ||
644 | CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf)); | |
645 | dev->irq = link->irq.AssignedIRQ; | |
646 | dev->base_addr = link->io.BasePort1; | |
647 | if (info->flags & HAS_MISC_REG) { | |
648 | if ((if_port == 1) || (if_port == 2)) | |
649 | dev->if_port = if_port; | |
650 | else | |
651 | printk(KERN_NOTICE "pcnet_cs: invalid if_port requested\n"); | |
652 | } else { | |
653 | dev->if_port = 0; | |
654 | } | |
655 | ||
656 | hw_info = get_hwinfo(link); | |
657 | if (hw_info == NULL) | |
658 | hw_info = get_prom(link); | |
659 | if (hw_info == NULL) | |
660 | hw_info = get_dl10019(link); | |
661 | if (hw_info == NULL) | |
662 | hw_info = get_ax88190(link); | |
663 | if (hw_info == NULL) | |
664 | hw_info = get_hwired(link); | |
665 | ||
666 | if (hw_info == NULL) { | |
667 | printk(KERN_NOTICE "pcnet_cs: unable to read hardware net" | |
668 | " address for io base %#3lx\n", dev->base_addr); | |
669 | goto failed; | |
670 | } | |
671 | ||
672 | info->flags = hw_info->flags; | |
673 | /* Check for user overrides */ | |
674 | info->flags |= (delay_output) ? DELAY_OUTPUT : 0; | |
675 | if ((manfid == MANFID_SOCKET) && | |
676 | ((prodid == PRODID_SOCKET_LPE) || | |
677 | (prodid == PRODID_SOCKET_LPE_CF) || | |
678 | (prodid == PRODID_SOCKET_EIO))) | |
679 | info->flags &= ~USE_BIG_BUF; | |
680 | if (!use_big_buf) | |
681 | info->flags &= ~USE_BIG_BUF; | |
682 | ||
683 | if (info->flags & USE_BIG_BUF) { | |
684 | start_pg = SOCKET_START_PG; | |
685 | stop_pg = SOCKET_STOP_PG; | |
686 | cm_offset = 0x10000; | |
687 | } else { | |
688 | start_pg = PCNET_START_PG; | |
689 | stop_pg = PCNET_STOP_PG; | |
690 | cm_offset = 0; | |
691 | } | |
692 | ||
693 | /* has_shmem is ignored if use_shmem != -1 */ | |
694 | if ((use_shmem == 0) || (!has_shmem && (use_shmem == -1)) || | |
695 | (setup_shmem_window(link, start_pg, stop_pg, cm_offset) != 0)) | |
696 | setup_dma_config(link, start_pg, stop_pg); | |
697 | ||
698 | ei_status.name = "NE2000"; | |
699 | ei_status.word16 = 1; | |
700 | ei_status.reset_8390 = &pcnet_reset_8390; | |
701 | ||
702 | SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops); | |
703 | ||
704 | if (info->flags & (IS_DL10019|IS_DL10022)) { | |
705 | u_char id = inb(dev->base_addr + 0x1a); | |
706 | dev->do_ioctl = &ei_ioctl; | |
707 | mii_phy_probe(dev); | |
708 | if ((id == 0x30) && !info->pna_phy && (info->eth_phy == 4)) | |
709 | info->eth_phy = 0; | |
710 | } | |
711 | ||
712 | link->dev = &info->node; | |
713 | link->state &= ~DEV_CONFIG_PENDING; | |
714 | SET_NETDEV_DEV(dev, &handle_to_dev(handle)); | |
715 | ||
716 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
717 | dev->poll_controller = ei_poll; | |
718 | #endif | |
719 | ||
720 | if (register_netdev(dev) != 0) { | |
721 | printk(KERN_NOTICE "pcnet_cs: register_netdev() failed\n"); | |
722 | link->dev = NULL; | |
723 | goto failed; | |
724 | } | |
725 | ||
726 | strcpy(info->node.dev_name, dev->name); | |
727 | ||
728 | if (info->flags & (IS_DL10019|IS_DL10022)) { | |
729 | u_char id = inb(dev->base_addr + 0x1a); | |
730 | printk(KERN_INFO "%s: NE2000 (DL100%d rev %02x): ", | |
731 | dev->name, ((info->flags & IS_DL10022) ? 22 : 19), id); | |
732 | if (info->pna_phy) | |
733 | printk("PNA, "); | |
734 | } else { | |
735 | printk(KERN_INFO "%s: NE2000 Compatible: ", dev->name); | |
736 | } | |
737 | printk("io %#3lx, irq %d,", dev->base_addr, dev->irq); | |
738 | if (info->flags & USE_SHMEM) | |
739 | printk (" mem %#5lx,", dev->mem_start); | |
740 | if (info->flags & HAS_MISC_REG) | |
741 | printk(" %s xcvr,", if_names[dev->if_port]); | |
742 | printk(" hw_addr "); | |
743 | for (i = 0; i < 6; i++) | |
744 | printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "\n")); | |
745 | return; | |
746 | ||
747 | cs_failed: | |
748 | cs_error(link->handle, last_fn, last_ret); | |
749 | failed: | |
750 | pcnet_release(link); | |
751 | link->state &= ~DEV_CONFIG_PENDING; | |
752 | return; | |
753 | } /* pcnet_config */ | |
754 | ||
755 | /*====================================================================== | |
756 | ||
757 | After a card is removed, pcnet_release() will unregister the net | |
758 | device, and release the PCMCIA configuration. If the device is | |
759 | still open, this will be postponed until it is closed. | |
760 | ||
761 | ======================================================================*/ | |
762 | ||
763 | static void pcnet_release(dev_link_t *link) | |
764 | { | |
765 | pcnet_dev_t *info = PRIV(link->priv); | |
766 | ||
767 | DEBUG(0, "pcnet_release(0x%p)\n", link); | |
768 | ||
769 | if (info->flags & USE_SHMEM) { | |
770 | iounmap(info->base); | |
771 | pcmcia_release_window(link->win); | |
772 | } | |
773 | pcmcia_release_configuration(link->handle); | |
774 | pcmcia_release_io(link->handle, &link->io); | |
775 | pcmcia_release_irq(link->handle, &link->irq); | |
776 | ||
777 | link->state &= ~DEV_CONFIG; | |
778 | } | |
779 | ||
780 | /*====================================================================== | |
781 | ||
782 | The card status event handler. Mostly, this schedules other | |
783 | stuff to run after an event is received. A CARD_REMOVAL event | |
784 | also sets some flags to discourage the net drivers from trying | |
785 | to talk to the card any more. | |
786 | ||
787 | ======================================================================*/ | |
788 | ||
789 | static int pcnet_event(event_t event, int priority, | |
790 | event_callback_args_t *args) | |
791 | { | |
792 | dev_link_t *link = args->client_data; | |
793 | struct net_device *dev = link->priv; | |
794 | ||
795 | DEBUG(2, "pcnet_event(0x%06x)\n", event); | |
796 | ||
797 | switch (event) { | |
798 | case CS_EVENT_CARD_REMOVAL: | |
799 | link->state &= ~DEV_PRESENT; | |
800 | if (link->state & DEV_CONFIG) | |
801 | netif_device_detach(dev); | |
802 | break; | |
803 | case CS_EVENT_CARD_INSERTION: | |
804 | link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; | |
805 | pcnet_config(link); | |
806 | break; | |
807 | case CS_EVENT_PM_SUSPEND: | |
808 | link->state |= DEV_SUSPEND; | |
809 | /* Fall through... */ | |
810 | case CS_EVENT_RESET_PHYSICAL: | |
811 | if (link->state & DEV_CONFIG) { | |
812 | if (link->open) | |
813 | netif_device_detach(dev); | |
814 | pcmcia_release_configuration(link->handle); | |
815 | } | |
816 | break; | |
817 | case CS_EVENT_PM_RESUME: | |
818 | link->state &= ~DEV_SUSPEND; | |
819 | /* Fall through... */ | |
820 | case CS_EVENT_CARD_RESET: | |
821 | if (link->state & DEV_CONFIG) { | |
822 | pcmcia_request_configuration(link->handle, &link->conf); | |
823 | if (link->open) { | |
824 | pcnet_reset_8390(dev); | |
825 | NS8390_init(dev, 1); | |
826 | netif_device_attach(dev); | |
827 | } | |
828 | } | |
829 | break; | |
830 | } | |
831 | return 0; | |
832 | } /* pcnet_event */ | |
833 | ||
834 | /*====================================================================== | |
835 | ||
836 | MII interface support for DL10019 and DL10022 based cards | |
837 | ||
838 | On the DL10019, the MII IO direction bit is 0x10; on the DL10022 | |
839 | it is 0x20. Setting both bits seems to work on both card types. | |
840 | ||
841 | ======================================================================*/ | |
842 | ||
843 | #define DLINK_GPIO 0x1c | |
844 | #define DLINK_DIAG 0x1d | |
845 | #define DLINK_EEPROM 0x1e | |
846 | ||
847 | #define MDIO_SHIFT_CLK 0x80 | |
848 | #define MDIO_DATA_OUT 0x40 | |
849 | #define MDIO_DIR_WRITE 0x30 | |
850 | #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE) | |
851 | #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT) | |
852 | #define MDIO_DATA_READ 0x10 | |
853 | #define MDIO_MASK 0x0f | |
854 | ||
855 | static void mdio_sync(kio_addr_t addr) | |
856 | { | |
857 | int bits, mask = inb(addr) & MDIO_MASK; | |
858 | for (bits = 0; bits < 32; bits++) { | |
859 | outb(mask | MDIO_DATA_WRITE1, addr); | |
860 | outb(mask | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr); | |
861 | } | |
862 | } | |
863 | ||
864 | static int mdio_read(kio_addr_t addr, int phy_id, int loc) | |
865 | { | |
866 | u_int cmd = (0x06<<10)|(phy_id<<5)|loc; | |
867 | int i, retval = 0, mask = inb(addr) & MDIO_MASK; | |
868 | ||
869 | mdio_sync(addr); | |
870 | for (i = 13; i >= 0; i--) { | |
871 | int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0; | |
872 | outb(mask | dat, addr); | |
873 | outb(mask | dat | MDIO_SHIFT_CLK, addr); | |
874 | } | |
875 | for (i = 19; i > 0; i--) { | |
876 | outb(mask, addr); | |
877 | retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0); | |
878 | outb(mask | MDIO_SHIFT_CLK, addr); | |
879 | } | |
880 | return (retval>>1) & 0xffff; | |
881 | } | |
882 | ||
883 | static void mdio_write(kio_addr_t addr, int phy_id, int loc, int value) | |
884 | { | |
885 | u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value; | |
886 | int i, mask = inb(addr) & MDIO_MASK; | |
887 | ||
888 | mdio_sync(addr); | |
889 | for (i = 31; i >= 0; i--) { | |
890 | int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0; | |
891 | outb(mask | dat, addr); | |
892 | outb(mask | dat | MDIO_SHIFT_CLK, addr); | |
893 | } | |
894 | for (i = 1; i >= 0; i--) { | |
895 | outb(mask, addr); | |
896 | outb(mask | MDIO_SHIFT_CLK, addr); | |
897 | } | |
898 | } | |
899 | ||
900 | static void mdio_reset(kio_addr_t addr, int phy_id) | |
901 | { | |
902 | outb_p(0x08, addr); | |
903 | outb_p(0x0c, addr); | |
904 | outb_p(0x08, addr); | |
905 | outb_p(0x0c, addr); | |
906 | outb_p(0x00, addr); | |
907 | } | |
908 | ||
909 | /*====================================================================== | |
910 | ||
911 | EEPROM access routines for DL10019 and DL10022 based cards | |
912 | ||
913 | ======================================================================*/ | |
914 | ||
915 | #define EE_EEP 0x40 | |
916 | #define EE_ASIC 0x10 | |
917 | #define EE_CS 0x08 | |
918 | #define EE_CK 0x04 | |
919 | #define EE_DO 0x02 | |
920 | #define EE_DI 0x01 | |
921 | #define EE_ADOT 0x01 /* DataOut for ASIC */ | |
922 | #define EE_READ_CMD 0x06 | |
923 | ||
924 | #define DL19FDUPLX 0x0400 /* DL10019 Full duplex mode */ | |
925 | ||
926 | static int read_eeprom(kio_addr_t ioaddr, int location) | |
927 | { | |
928 | int i, retval = 0; | |
929 | kio_addr_t ee_addr = ioaddr + DLINK_EEPROM; | |
930 | int read_cmd = location | (EE_READ_CMD << 8); | |
931 | ||
932 | outb(0, ee_addr); | |
933 | outb(EE_EEP|EE_CS, ee_addr); | |
934 | ||
935 | /* Shift the read command bits out. */ | |
936 | for (i = 10; i >= 0; i--) { | |
937 | short dataval = (read_cmd & (1 << i)) ? EE_DO : 0; | |
938 | outb_p(EE_EEP|EE_CS|dataval, ee_addr); | |
939 | outb_p(EE_EEP|EE_CS|dataval|EE_CK, ee_addr); | |
940 | } | |
941 | outb(EE_EEP|EE_CS, ee_addr); | |
942 | ||
943 | for (i = 16; i > 0; i--) { | |
944 | outb_p(EE_EEP|EE_CS | EE_CK, ee_addr); | |
945 | retval = (retval << 1) | ((inb(ee_addr) & EE_DI) ? 1 : 0); | |
946 | outb_p(EE_EEP|EE_CS, ee_addr); | |
947 | } | |
948 | ||
949 | /* Terminate the EEPROM access. */ | |
950 | outb(0, ee_addr); | |
951 | return retval; | |
952 | } | |
953 | ||
954 | /* | |
955 | The internal ASIC registers can be changed by EEPROM READ access | |
956 | with EE_ASIC bit set. | |
957 | In ASIC mode, EE_ADOT is used to output the data to the ASIC. | |
958 | */ | |
959 | ||
960 | static void write_asic(kio_addr_t ioaddr, int location, short asic_data) | |
961 | { | |
962 | int i; | |
963 | kio_addr_t ee_addr = ioaddr + DLINK_EEPROM; | |
964 | short dataval; | |
965 | int read_cmd = location | (EE_READ_CMD << 8); | |
966 | ||
967 | asic_data |= read_eeprom(ioaddr, location); | |
968 | ||
969 | outb(0, ee_addr); | |
970 | outb(EE_ASIC|EE_CS|EE_DI, ee_addr); | |
971 | ||
972 | read_cmd = read_cmd >> 1; | |
973 | ||
974 | /* Shift the read command bits out. */ | |
975 | for (i = 9; i >= 0; i--) { | |
976 | dataval = (read_cmd & (1 << i)) ? EE_DO : 0; | |
977 | outb_p(EE_ASIC|EE_CS|EE_DI|dataval, ee_addr); | |
978 | outb_p(EE_ASIC|EE_CS|EE_DI|dataval|EE_CK, ee_addr); | |
979 | outb_p(EE_ASIC|EE_CS|EE_DI|dataval, ee_addr); | |
980 | } | |
981 | // sync | |
982 | outb(EE_ASIC|EE_CS, ee_addr); | |
983 | outb(EE_ASIC|EE_CS|EE_CK, ee_addr); | |
984 | outb(EE_ASIC|EE_CS, ee_addr); | |
985 | ||
986 | for (i = 15; i >= 0; i--) { | |
987 | dataval = (asic_data & (1 << i)) ? EE_ADOT : 0; | |
988 | outb_p(EE_ASIC|EE_CS|dataval, ee_addr); | |
989 | outb_p(EE_ASIC|EE_CS|dataval|EE_CK, ee_addr); | |
990 | outb_p(EE_ASIC|EE_CS|dataval, ee_addr); | |
991 | } | |
992 | ||
993 | /* Terminate the ASIC access. */ | |
994 | outb(EE_ASIC|EE_DI, ee_addr); | |
995 | outb(EE_ASIC|EE_DI| EE_CK, ee_addr); | |
996 | outb(EE_ASIC|EE_DI, ee_addr); | |
997 | ||
998 | outb(0, ee_addr); | |
999 | } | |
1000 | ||
1001 | /*====================================================================*/ | |
1002 | ||
1003 | static void set_misc_reg(struct net_device *dev) | |
1004 | { | |
1005 | kio_addr_t nic_base = dev->base_addr; | |
1006 | pcnet_dev_t *info = PRIV(dev); | |
1007 | u_char tmp; | |
1008 | ||
1009 | if (info->flags & HAS_MISC_REG) { | |
1010 | tmp = inb_p(nic_base + PCNET_MISC) & ~3; | |
1011 | if (dev->if_port == 2) | |
1012 | tmp |= 1; | |
1013 | if (info->flags & USE_BIG_BUF) | |
1014 | tmp |= 2; | |
1015 | if (info->flags & HAS_IBM_MISC) | |
1016 | tmp |= 8; | |
1017 | outb_p(tmp, nic_base + PCNET_MISC); | |
1018 | } | |
1019 | if (info->flags & IS_DL10022) { | |
1020 | if (info->flags & HAS_MII) { | |
1021 | mdio_reset(nic_base + DLINK_GPIO, info->eth_phy); | |
1022 | /* Restart MII autonegotiation */ | |
1023 | mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x0000); | |
1024 | mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x1200); | |
1025 | info->mii_reset = jiffies; | |
1026 | } else { | |
1027 | outb(full_duplex ? 4 : 0, nic_base + DLINK_DIAG); | |
1028 | } | |
1029 | } | |
1030 | } | |
1031 | ||
1032 | /*====================================================================*/ | |
1033 | ||
1034 | static void mii_phy_probe(struct net_device *dev) | |
1035 | { | |
1036 | pcnet_dev_t *info = PRIV(dev); | |
1037 | kio_addr_t mii_addr = dev->base_addr + DLINK_GPIO; | |
1038 | int i; | |
1039 | u_int tmp, phyid; | |
1040 | ||
1041 | for (i = 31; i >= 0; i--) { | |
1042 | tmp = mdio_read(mii_addr, i, 1); | |
1043 | if ((tmp == 0) || (tmp == 0xffff)) | |
1044 | continue; | |
1045 | tmp = mdio_read(mii_addr, i, MII_PHYID_REG1); | |
1046 | phyid = tmp << 16; | |
1047 | phyid |= mdio_read(mii_addr, i, MII_PHYID_REG2); | |
1048 | phyid &= MII_PHYID_REV_MASK; | |
1049 | DEBUG(0, "%s: MII at %d is 0x%08x\n", dev->name, i, phyid); | |
1050 | if (phyid == AM79C9XX_HOME_PHY) { | |
1051 | info->pna_phy = i; | |
1052 | } else if (phyid != AM79C9XX_ETH_PHY) { | |
1053 | info->eth_phy = i; | |
1054 | } | |
1055 | } | |
1056 | } | |
1057 | ||
1058 | static int pcnet_open(struct net_device *dev) | |
1059 | { | |
1060 | pcnet_dev_t *info = PRIV(dev); | |
1061 | dev_link_t *link = &info->link; | |
1062 | ||
1063 | DEBUG(2, "pcnet_open('%s')\n", dev->name); | |
1064 | ||
1065 | if (!DEV_OK(link)) | |
1066 | return -ENODEV; | |
1067 | ||
1068 | link->open++; | |
1069 | ||
1070 | set_misc_reg(dev); | |
1071 | request_irq(dev->irq, ei_irq_wrapper, SA_SHIRQ, dev_info, dev); | |
1072 | ||
1073 | info->phy_id = info->eth_phy; | |
1074 | info->link_status = 0x00; | |
1075 | init_timer(&info->watchdog); | |
1076 | info->watchdog.function = &ei_watchdog; | |
1077 | info->watchdog.data = (u_long)dev; | |
1078 | info->watchdog.expires = jiffies + HZ; | |
1079 | add_timer(&info->watchdog); | |
1080 | ||
1081 | return ei_open(dev); | |
1082 | } /* pcnet_open */ | |
1083 | ||
1084 | /*====================================================================*/ | |
1085 | ||
1086 | static int pcnet_close(struct net_device *dev) | |
1087 | { | |
1088 | pcnet_dev_t *info = PRIV(dev); | |
1089 | dev_link_t *link = &info->link; | |
1090 | ||
1091 | DEBUG(2, "pcnet_close('%s')\n", dev->name); | |
1092 | ||
1093 | ei_close(dev); | |
1094 | free_irq(dev->irq, dev); | |
1095 | ||
1096 | link->open--; | |
1097 | netif_stop_queue(dev); | |
1098 | del_timer_sync(&info->watchdog); | |
1099 | ||
1100 | return 0; | |
1101 | } /* pcnet_close */ | |
1102 | ||
1103 | /*====================================================================== | |
1104 | ||
1105 | Hard reset the card. This used to pause for the same period that | |
1106 | a 8390 reset command required, but that shouldn't be necessary. | |
1107 | ||
1108 | ======================================================================*/ | |
1109 | ||
1110 | static void pcnet_reset_8390(struct net_device *dev) | |
1111 | { | |
1112 | kio_addr_t nic_base = dev->base_addr; | |
1113 | int i; | |
1114 | ||
1115 | ei_status.txing = ei_status.dmaing = 0; | |
1116 | ||
1117 | outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, nic_base + E8390_CMD); | |
1118 | ||
1119 | outb(inb(nic_base + PCNET_RESET), nic_base + PCNET_RESET); | |
1120 | ||
1121 | for (i = 0; i < 100; i++) { | |
1122 | if ((inb_p(nic_base+EN0_ISR) & ENISR_RESET) != 0) | |
1123 | break; | |
1124 | udelay(100); | |
1125 | } | |
1126 | outb_p(ENISR_RESET, nic_base + EN0_ISR); /* Ack intr. */ | |
1127 | ||
1128 | if (i == 100) | |
1129 | printk(KERN_ERR "%s: pcnet_reset_8390() did not complete.\n", | |
1130 | dev->name); | |
1131 | set_misc_reg(dev); | |
1132 | ||
1133 | } /* pcnet_reset_8390 */ | |
1134 | ||
1135 | /*====================================================================*/ | |
1136 | ||
1137 | static int set_config(struct net_device *dev, struct ifmap *map) | |
1138 | { | |
1139 | pcnet_dev_t *info = PRIV(dev); | |
1140 | if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) { | |
1141 | if (!(info->flags & HAS_MISC_REG)) | |
1142 | return -EOPNOTSUPP; | |
1143 | else if ((map->port < 1) || (map->port > 2)) | |
1144 | return -EINVAL; | |
1145 | dev->if_port = map->port; | |
1146 | printk(KERN_INFO "%s: switched to %s port\n", | |
1147 | dev->name, if_names[dev->if_port]); | |
1148 | NS8390_init(dev, 1); | |
1149 | } | |
1150 | return 0; | |
1151 | } | |
1152 | ||
1153 | /*====================================================================*/ | |
1154 | ||
1155 | static irqreturn_t ei_irq_wrapper(int irq, void *dev_id, struct pt_regs *regs) | |
1156 | { | |
1157 | struct net_device *dev = dev_id; | |
93ad4fb0 | 1158 | pcnet_dev_t *info; |
1da177e4 LT |
1159 | irqreturn_t ret = ei_interrupt(irq, dev_id, regs); |
1160 | ||
93ad4fb0 AM |
1161 | if (ret == IRQ_HANDLED) { |
1162 | info = PRIV(dev); | |
1da177e4 | 1163 | info->stale = 0; |
93ad4fb0 | 1164 | } |
1da177e4 LT |
1165 | return ret; |
1166 | } | |
1167 | ||
1168 | static void ei_watchdog(u_long arg) | |
1169 | { | |
1170 | struct net_device *dev = (struct net_device *)arg; | |
1171 | pcnet_dev_t *info = PRIV(dev); | |
1172 | kio_addr_t nic_base = dev->base_addr; | |
1173 | kio_addr_t mii_addr = nic_base + DLINK_GPIO; | |
1174 | u_short link; | |
1175 | ||
1176 | if (!netif_device_present(dev)) goto reschedule; | |
1177 | ||
1178 | /* Check for pending interrupt with expired latency timer: with | |
1179 | this, we can limp along even if the interrupt is blocked */ | |
1180 | outb_p(E8390_NODMA+E8390_PAGE0, nic_base + E8390_CMD); | |
1181 | if (info->stale++ && (inb_p(nic_base + EN0_ISR) & ENISR_ALL)) { | |
1182 | if (!info->fast_poll) | |
1183 | printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name); | |
1184 | ei_irq_wrapper(dev->irq, dev, NULL); | |
1185 | info->fast_poll = HZ; | |
1186 | } | |
1187 | if (info->fast_poll) { | |
1188 | info->fast_poll--; | |
1189 | info->watchdog.expires = jiffies + 1; | |
1190 | add_timer(&info->watchdog); | |
1191 | return; | |
1192 | } | |
1193 | ||
1194 | if (!(info->flags & HAS_MII)) | |
1195 | goto reschedule; | |
1196 | ||
1197 | mdio_read(mii_addr, info->phy_id, 1); | |
1198 | link = mdio_read(mii_addr, info->phy_id, 1); | |
1199 | if (!link || (link == 0xffff)) { | |
1200 | if (info->eth_phy) { | |
1201 | info->phy_id = info->eth_phy = 0; | |
1202 | } else { | |
1203 | printk(KERN_INFO "%s: MII is missing!\n", dev->name); | |
1204 | info->flags &= ~HAS_MII; | |
1205 | } | |
1206 | goto reschedule; | |
1207 | } | |
1208 | ||
1209 | link &= 0x0004; | |
1210 | if (link != info->link_status) { | |
1211 | u_short p = mdio_read(mii_addr, info->phy_id, 5); | |
1212 | printk(KERN_INFO "%s: %s link beat\n", dev->name, | |
1213 | (link) ? "found" : "lost"); | |
1214 | if (link && (info->flags & IS_DL10022)) { | |
1215 | /* Disable collision detection on full duplex links */ | |
1216 | outb((p & 0x0140) ? 4 : 0, nic_base + DLINK_DIAG); | |
1217 | } else if (link && (info->flags & IS_DL10019)) { | |
1218 | /* Disable collision detection on full duplex links */ | |
1219 | write_asic(dev->base_addr, 4, (p & 0x140) ? DL19FDUPLX : 0); | |
1220 | } | |
1221 | if (link) { | |
1222 | if (info->phy_id == info->eth_phy) { | |
1223 | if (p) | |
1224 | printk(KERN_INFO "%s: autonegotiation complete: " | |
1225 | "%sbaseT-%cD selected\n", dev->name, | |
1226 | ((p & 0x0180) ? "100" : "10"), | |
1227 | ((p & 0x0140) ? 'F' : 'H')); | |
1228 | else | |
1229 | printk(KERN_INFO "%s: link partner did not " | |
1230 | "autonegotiate\n", dev->name); | |
1231 | } | |
1232 | NS8390_init(dev, 1); | |
1233 | } | |
1234 | info->link_status = link; | |
1235 | } | |
1236 | if (info->pna_phy && time_after(jiffies, info->mii_reset + 6*HZ)) { | |
1237 | link = mdio_read(mii_addr, info->eth_phy, 1) & 0x0004; | |
1238 | if (((info->phy_id == info->pna_phy) && link) || | |
1239 | ((info->phy_id != info->pna_phy) && !link)) { | |
1240 | /* isolate this MII and try flipping to the other one */ | |
1241 | mdio_write(mii_addr, info->phy_id, 0, 0x0400); | |
1242 | info->phy_id ^= info->pna_phy ^ info->eth_phy; | |
1243 | printk(KERN_INFO "%s: switched to %s transceiver\n", dev->name, | |
1244 | (info->phy_id == info->eth_phy) ? "ethernet" : "PNA"); | |
1245 | mdio_write(mii_addr, info->phy_id, 0, | |
1246 | (info->phy_id == info->eth_phy) ? 0x1000 : 0); | |
1247 | info->link_status = 0; | |
1248 | info->mii_reset = jiffies; | |
1249 | } | |
1250 | } | |
1251 | ||
1252 | reschedule: | |
1253 | info->watchdog.expires = jiffies + HZ; | |
1254 | add_timer(&info->watchdog); | |
1255 | } | |
1256 | ||
1257 | /*====================================================================*/ | |
1258 | ||
1259 | static void netdev_get_drvinfo(struct net_device *dev, | |
1260 | struct ethtool_drvinfo *info) | |
1261 | { | |
1262 | strcpy(info->driver, "pcnet_cs"); | |
1263 | } | |
1264 | ||
1265 | static struct ethtool_ops netdev_ethtool_ops = { | |
1266 | .get_drvinfo = netdev_get_drvinfo, | |
1267 | }; | |
1268 | ||
1269 | /*====================================================================*/ | |
1270 | ||
1271 | ||
1272 | static int ei_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
1273 | { | |
1274 | pcnet_dev_t *info = PRIV(dev); | |
1275 | u16 *data = (u16 *)&rq->ifr_ifru; | |
1276 | kio_addr_t mii_addr = dev->base_addr + DLINK_GPIO; | |
1277 | switch (cmd) { | |
1278 | case SIOCGMIIPHY: | |
1279 | data[0] = info->phy_id; | |
1280 | case SIOCGMIIREG: /* Read MII PHY register. */ | |
1281 | data[3] = mdio_read(mii_addr, data[0], data[1] & 0x1f); | |
1282 | return 0; | |
1283 | case SIOCSMIIREG: /* Write MII PHY register. */ | |
1284 | if (!capable(CAP_NET_ADMIN)) | |
1285 | return -EPERM; | |
1286 | mdio_write(mii_addr, data[0], data[1] & 0x1f, data[2]); | |
1287 | return 0; | |
1288 | } | |
1289 | return -EOPNOTSUPP; | |
1290 | } | |
1291 | ||
1292 | /*====================================================================*/ | |
1293 | ||
1294 | static void dma_get_8390_hdr(struct net_device *dev, | |
1295 | struct e8390_pkt_hdr *hdr, | |
1296 | int ring_page) | |
1297 | { | |
1298 | kio_addr_t nic_base = dev->base_addr; | |
1299 | ||
1300 | if (ei_status.dmaing) { | |
1301 | printk(KERN_NOTICE "%s: DMAing conflict in dma_block_input." | |
1302 | "[DMAstat:%1x][irqlock:%1x]\n", | |
1303 | dev->name, ei_status.dmaing, ei_status.irqlock); | |
1304 | return; | |
1305 | } | |
1306 | ||
1307 | ei_status.dmaing |= 0x01; | |
1308 | outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + PCNET_CMD); | |
1309 | outb_p(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); | |
1310 | outb_p(0, nic_base + EN0_RCNTHI); | |
1311 | outb_p(0, nic_base + EN0_RSARLO); /* On page boundary */ | |
1312 | outb_p(ring_page, nic_base + EN0_RSARHI); | |
1313 | outb_p(E8390_RREAD+E8390_START, nic_base + PCNET_CMD); | |
1314 | ||
1315 | insw(nic_base + PCNET_DATAPORT, hdr, | |
1316 | sizeof(struct e8390_pkt_hdr)>>1); | |
1317 | /* Fix for big endian systems */ | |
1318 | hdr->count = le16_to_cpu(hdr->count); | |
1319 | ||
1320 | outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | |
1321 | ei_status.dmaing &= ~0x01; | |
1322 | } | |
1323 | ||
1324 | /*====================================================================*/ | |
1325 | ||
1326 | static void dma_block_input(struct net_device *dev, int count, | |
1327 | struct sk_buff *skb, int ring_offset) | |
1328 | { | |
1329 | kio_addr_t nic_base = dev->base_addr; | |
1330 | int xfer_count = count; | |
1331 | char *buf = skb->data; | |
1332 | ||
1333 | #ifdef PCMCIA_DEBUG | |
1334 | if ((ei_debug > 4) && (count != 4)) | |
1335 | printk(KERN_DEBUG "%s: [bi=%d]\n", dev->name, count+4); | |
1336 | #endif | |
1337 | if (ei_status.dmaing) { | |
1338 | printk(KERN_NOTICE "%s: DMAing conflict in dma_block_input." | |
1339 | "[DMAstat:%1x][irqlock:%1x]\n", | |
1340 | dev->name, ei_status.dmaing, ei_status.irqlock); | |
1341 | return; | |
1342 | } | |
1343 | ei_status.dmaing |= 0x01; | |
1344 | outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + PCNET_CMD); | |
1345 | outb_p(count & 0xff, nic_base + EN0_RCNTLO); | |
1346 | outb_p(count >> 8, nic_base + EN0_RCNTHI); | |
1347 | outb_p(ring_offset & 0xff, nic_base + EN0_RSARLO); | |
1348 | outb_p(ring_offset >> 8, nic_base + EN0_RSARHI); | |
1349 | outb_p(E8390_RREAD+E8390_START, nic_base + PCNET_CMD); | |
1350 | ||
1351 | insw(nic_base + PCNET_DATAPORT,buf,count>>1); | |
1352 | if (count & 0x01) | |
1353 | buf[count-1] = inb(nic_base + PCNET_DATAPORT), xfer_count++; | |
1354 | ||
93ad4fb0 | 1355 | /* This was for the ALPHA version only, but enough people have been |
1da177e4 LT |
1356 | encountering problems that it is still here. */ |
1357 | #ifdef PCMCIA_DEBUG | |
1358 | if (ei_debug > 4) { /* DMA termination address check... */ | |
1359 | int addr, tries = 20; | |
1360 | do { | |
1361 | /* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here | |
1362 | -- it's broken for Rx on some cards! */ | |
1363 | int high = inb_p(nic_base + EN0_RSARHI); | |
1364 | int low = inb_p(nic_base + EN0_RSARLO); | |
1365 | addr = (high << 8) + low; | |
1366 | if (((ring_offset + xfer_count) & 0xff) == (addr & 0xff)) | |
1367 | break; | |
1368 | } while (--tries > 0); | |
1369 | if (tries <= 0) | |
1370 | printk(KERN_NOTICE "%s: RX transfer address mismatch," | |
1371 | "%#4.4x (expected) vs. %#4.4x (actual).\n", | |
1372 | dev->name, ring_offset + xfer_count, addr); | |
1373 | } | |
1374 | #endif | |
1375 | outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | |
1376 | ei_status.dmaing &= ~0x01; | |
1377 | } /* dma_block_input */ | |
1378 | ||
1379 | /*====================================================================*/ | |
1380 | ||
1381 | static void dma_block_output(struct net_device *dev, int count, | |
1382 | const u_char *buf, const int start_page) | |
1383 | { | |
1384 | kio_addr_t nic_base = dev->base_addr; | |
1385 | pcnet_dev_t *info = PRIV(dev); | |
1386 | #ifdef PCMCIA_DEBUG | |
1387 | int retries = 0; | |
1388 | #endif | |
1389 | u_long dma_start; | |
1390 | ||
1391 | #ifdef PCMCIA_DEBUG | |
1392 | if (ei_debug > 4) | |
1393 | printk(KERN_DEBUG "%s: [bo=%d]\n", dev->name, count); | |
1394 | #endif | |
1395 | ||
1396 | /* Round the count up for word writes. Do we need to do this? | |
1397 | What effect will an odd byte count have on the 8390? | |
1398 | I should check someday. */ | |
1399 | if (count & 0x01) | |
1400 | count++; | |
1401 | if (ei_status.dmaing) { | |
1402 | printk(KERN_NOTICE "%s: DMAing conflict in dma_block_output." | |
1403 | "[DMAstat:%1x][irqlock:%1x]\n", | |
1404 | dev->name, ei_status.dmaing, ei_status.irqlock); | |
1405 | return; | |
1406 | } | |
1407 | ei_status.dmaing |= 0x01; | |
1408 | /* We should already be in page 0, but to be safe... */ | |
1409 | outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base+PCNET_CMD); | |
1410 | ||
1411 | #ifdef PCMCIA_DEBUG | |
1412 | retry: | |
1413 | #endif | |
1414 | ||
1415 | outb_p(ENISR_RDC, nic_base + EN0_ISR); | |
1416 | ||
1417 | /* Now the normal output. */ | |
1418 | outb_p(count & 0xff, nic_base + EN0_RCNTLO); | |
1419 | outb_p(count >> 8, nic_base + EN0_RCNTHI); | |
1420 | outb_p(0x00, nic_base + EN0_RSARLO); | |
1421 | outb_p(start_page, nic_base + EN0_RSARHI); | |
1422 | ||
1423 | outb_p(E8390_RWRITE+E8390_START, nic_base + PCNET_CMD); | |
1424 | outsw(nic_base + PCNET_DATAPORT, buf, count>>1); | |
1425 | ||
1426 | dma_start = jiffies; | |
1427 | ||
1428 | #ifdef PCMCIA_DEBUG | |
93ad4fb0 | 1429 | /* This was for the ALPHA version only, but enough people have been |
1da177e4 LT |
1430 | encountering problems that it is still here. */ |
1431 | if (ei_debug > 4) { /* DMA termination address check... */ | |
1432 | int addr, tries = 20; | |
1433 | do { | |
1434 | int high = inb_p(nic_base + EN0_RSARHI); | |
1435 | int low = inb_p(nic_base + EN0_RSARLO); | |
1436 | addr = (high << 8) + low; | |
1437 | if ((start_page << 8) + count == addr) | |
1438 | break; | |
1439 | } while (--tries > 0); | |
1440 | if (tries <= 0) { | |
1441 | printk(KERN_NOTICE "%s: Tx packet transfer address mismatch," | |
1442 | "%#4.4x (expected) vs. %#4.4x (actual).\n", | |
1443 | dev->name, (start_page << 8) + count, addr); | |
1444 | if (retries++ == 0) | |
1445 | goto retry; | |
1446 | } | |
1447 | } | |
1448 | #endif | |
1449 | ||
1450 | while ((inb_p(nic_base + EN0_ISR) & ENISR_RDC) == 0) | |
1451 | if (time_after(jiffies, dma_start + PCNET_RDC_TIMEOUT)) { | |
1452 | printk(KERN_NOTICE "%s: timeout waiting for Tx RDC.\n", | |
1453 | dev->name); | |
1454 | pcnet_reset_8390(dev); | |
1455 | NS8390_init(dev, 1); | |
1456 | break; | |
1457 | } | |
1458 | ||
1459 | outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ | |
1460 | if (info->flags & DELAY_OUTPUT) | |
1461 | udelay((long)delay_time); | |
1462 | ei_status.dmaing &= ~0x01; | |
1463 | } | |
1464 | ||
1465 | /*====================================================================*/ | |
1466 | ||
1467 | static int setup_dma_config(dev_link_t *link, int start_pg, | |
1468 | int stop_pg) | |
1469 | { | |
1470 | struct net_device *dev = link->priv; | |
1471 | ||
1472 | ei_status.tx_start_page = start_pg; | |
1473 | ei_status.rx_start_page = start_pg + TX_PAGES; | |
1474 | ei_status.stop_page = stop_pg; | |
1475 | ||
1476 | /* set up block i/o functions */ | |
1477 | ei_status.get_8390_hdr = &dma_get_8390_hdr; | |
1478 | ei_status.block_input = &dma_block_input; | |
1479 | ei_status.block_output = &dma_block_output; | |
1480 | ||
1481 | return 0; | |
1482 | } | |
1483 | ||
1484 | /*====================================================================*/ | |
1485 | ||
1486 | static void copyin(void *dest, void __iomem *src, int c) | |
1487 | { | |
1488 | u_short *d = dest; | |
1489 | u_short __iomem *s = src; | |
1490 | int odd; | |
1491 | ||
1492 | if (c <= 0) | |
1493 | return; | |
1494 | odd = (c & 1); c >>= 1; | |
1495 | ||
1496 | if (c) { | |
1497 | do { *d++ = __raw_readw(s++); } while (--c); | |
1498 | } | |
1499 | /* get last byte by fetching a word and masking */ | |
1500 | if (odd) | |
1501 | *((u_char *)d) = readw(s) & 0xff; | |
1502 | } | |
1503 | ||
1504 | static void copyout(void __iomem *dest, const void *src, int c) | |
1505 | { | |
1506 | u_short __iomem *d = dest; | |
1507 | const u_short *s = src; | |
1508 | int odd; | |
1509 | ||
1510 | if (c <= 0) | |
1511 | return; | |
1512 | odd = (c & 1); c >>= 1; | |
1513 | ||
1514 | if (c) { | |
1515 | do { __raw_writew(*s++, d++); } while (--c); | |
1516 | } | |
1517 | /* copy last byte doing a read-modify-write */ | |
1518 | if (odd) | |
1519 | writew((readw(d) & 0xff00) | *(u_char *)s, d); | |
1520 | } | |
1521 | ||
1522 | /*====================================================================*/ | |
1523 | ||
1524 | static void shmem_get_8390_hdr(struct net_device *dev, | |
1525 | struct e8390_pkt_hdr *hdr, | |
1526 | int ring_page) | |
1527 | { | |
1528 | void __iomem *xfer_start = ei_status.mem + (TX_PAGES<<8) | |
1529 | + (ring_page << 8) | |
1530 | - (ei_status.rx_start_page << 8); | |
1531 | ||
1532 | copyin(hdr, xfer_start, sizeof(struct e8390_pkt_hdr)); | |
1533 | /* Fix for big endian systems */ | |
1534 | hdr->count = le16_to_cpu(hdr->count); | |
1535 | } | |
1536 | ||
1537 | /*====================================================================*/ | |
1538 | ||
1539 | static void shmem_block_input(struct net_device *dev, int count, | |
1540 | struct sk_buff *skb, int ring_offset) | |
1541 | { | |
99417769 AV |
1542 | void __iomem *base = ei_status.mem; |
1543 | unsigned long offset = (TX_PAGES<<8) + ring_offset | |
1da177e4 LT |
1544 | - (ei_status.rx_start_page << 8); |
1545 | char *buf = skb->data; | |
1546 | ||
99417769 | 1547 | if (offset + count > ei_status.priv) { |
1da177e4 | 1548 | /* We must wrap the input move. */ |
99417769 AV |
1549 | int semi_count = ei_status.priv - offset; |
1550 | copyin(buf, base + offset, semi_count); | |
1da177e4 | 1551 | buf += semi_count; |
99417769 | 1552 | offset = TX_PAGES<<8; |
1da177e4 LT |
1553 | count -= semi_count; |
1554 | } | |
99417769 | 1555 | copyin(buf, base + offset, count); |
1da177e4 LT |
1556 | } |
1557 | ||
1558 | /*====================================================================*/ | |
1559 | ||
1560 | static void shmem_block_output(struct net_device *dev, int count, | |
1561 | const u_char *buf, const int start_page) | |
1562 | { | |
1563 | void __iomem *shmem = ei_status.mem + (start_page << 8); | |
1564 | shmem -= ei_status.tx_start_page << 8; | |
1565 | copyout(shmem, buf, count); | |
1566 | } | |
1567 | ||
1568 | /*====================================================================*/ | |
1569 | ||
1570 | static int setup_shmem_window(dev_link_t *link, int start_pg, | |
1571 | int stop_pg, int cm_offset) | |
1572 | { | |
1573 | struct net_device *dev = link->priv; | |
1574 | pcnet_dev_t *info = PRIV(dev); | |
1575 | win_req_t req; | |
1576 | memreq_t mem; | |
1577 | int i, window_size, offset, last_ret, last_fn; | |
1578 | ||
1579 | window_size = (stop_pg - start_pg) << 8; | |
1580 | if (window_size > 32 * 1024) | |
1581 | window_size = 32 * 1024; | |
1582 | ||
1583 | /* Make sure it's a power of two. */ | |
1584 | while ((window_size & (window_size - 1)) != 0) | |
1585 | window_size += window_size & ~(window_size - 1); | |
1586 | ||
1587 | /* Allocate a memory window */ | |
1588 | req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE; | |
1589 | req.Attributes |= WIN_USE_WAIT; | |
1590 | req.Base = 0; req.Size = window_size; | |
1591 | req.AccessSpeed = mem_speed; | |
1592 | CS_CHECK(RequestWindow, pcmcia_request_window(&link->handle, &req, &link->win)); | |
1593 | ||
1594 | mem.CardOffset = (start_pg << 8) + cm_offset; | |
1595 | offset = mem.CardOffset % window_size; | |
1596 | mem.CardOffset -= offset; | |
1597 | mem.Page = 0; | |
1598 | CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem)); | |
1599 | ||
1600 | /* Try scribbling on the buffer */ | |
1601 | info->base = ioremap(req.Base, window_size); | |
1602 | for (i = 0; i < (TX_PAGES<<8); i += 2) | |
1603 | __raw_writew((i>>1), info->base+offset+i); | |
1604 | udelay(100); | |
1605 | for (i = 0; i < (TX_PAGES<<8); i += 2) | |
1606 | if (__raw_readw(info->base+offset+i) != (i>>1)) break; | |
1607 | pcnet_reset_8390(dev); | |
1608 | if (i != (TX_PAGES<<8)) { | |
1609 | iounmap(info->base); | |
1610 | pcmcia_release_window(link->win); | |
1611 | info->base = NULL; link->win = NULL; | |
1612 | goto failed; | |
1613 | } | |
1614 | ||
1615 | ei_status.mem = info->base + offset; | |
99417769 | 1616 | ei_status.priv = req.Size; |
1da177e4 | 1617 | dev->mem_start = (u_long)ei_status.mem; |
99417769 | 1618 | dev->mem_end = dev->mem_start + req.Size; |
1da177e4 LT |
1619 | |
1620 | ei_status.tx_start_page = start_pg; | |
1621 | ei_status.rx_start_page = start_pg + TX_PAGES; | |
1622 | ei_status.stop_page = start_pg + ((req.Size - offset) >> 8); | |
1623 | ||
1624 | /* set up block i/o functions */ | |
1625 | ei_status.get_8390_hdr = &shmem_get_8390_hdr; | |
1626 | ei_status.block_input = &shmem_block_input; | |
1627 | ei_status.block_output = &shmem_block_output; | |
1628 | ||
1629 | info->flags |= USE_SHMEM; | |
1630 | return 0; | |
1631 | ||
1632 | cs_failed: | |
1633 | cs_error(link->handle, last_fn, last_ret); | |
1634 | failed: | |
1635 | return 1; | |
1636 | } | |
1637 | ||
1638 | /*====================================================================*/ | |
1639 | ||
1640 | static struct pcmcia_driver pcnet_driver = { | |
1641 | .drv = { | |
1642 | .name = "pcnet_cs", | |
1643 | }, | |
1644 | .attach = pcnet_attach, | |
1645 | .detach = pcnet_detach, | |
1646 | .owner = THIS_MODULE, | |
1647 | }; | |
1648 | ||
1649 | static int __init init_pcnet_cs(void) | |
1650 | { | |
1651 | return pcmcia_register_driver(&pcnet_driver); | |
1652 | } | |
1653 | ||
1654 | static void __exit exit_pcnet_cs(void) | |
1655 | { | |
1656 | DEBUG(0, "pcnet_cs: unloading\n"); | |
1657 | pcmcia_unregister_driver(&pcnet_driver); | |
1658 | BUG_ON(dev_list != NULL); | |
1659 | } | |
1660 | ||
1661 | module_init(init_pcnet_cs); | |
1662 | module_exit(exit_pcnet_cs); |