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1da177e4 LT |
1 | /* cs89x0.c: A Crystal Semiconductor (Now Cirrus Logic) CS89[02]0 |
2 | * driver for linux. | |
3 | */ | |
4 | ||
5 | /* | |
6 | Written 1996 by Russell Nelson, with reference to skeleton.c | |
7 | written 1993-1994 by Donald Becker. | |
8 | ||
9 | This software may be used and distributed according to the terms | |
10 | of the GNU General Public License, incorporated herein by reference. | |
11 | ||
12 | The author may be reached at nelson@crynwr.com, Crynwr | |
13 | Software, 521 Pleasant Valley Rd., Potsdam, NY 13676 | |
14 | ||
15 | Changelog: | |
16 | ||
17 | Mike Cruse : mcruse@cti-ltd.com | |
18 | : Changes for Linux 2.0 compatibility. | |
19 | : Added dev_id parameter in net_interrupt(), | |
20 | : request_irq() and free_irq(). Just NULL for now. | |
21 | ||
22 | Mike Cruse : Added MOD_INC_USE_COUNT and MOD_DEC_USE_COUNT macros | |
23 | : in net_open() and net_close() so kerneld would know | |
24 | : that the module is in use and wouldn't eject the | |
25 | : driver prematurely. | |
26 | ||
27 | Mike Cruse : Rewrote init_module() and cleanup_module using 8390.c | |
28 | : as an example. Disabled autoprobing in init_module(), | |
29 | : not a good thing to do to other devices while Linux | |
30 | : is running from all accounts. | |
31 | ||
32 | Russ Nelson : Jul 13 1998. Added RxOnly DMA support. | |
33 | ||
34 | Melody Lee : Aug 10 1999. Changes for Linux 2.2.5 compatibility. | |
35 | : email: ethernet@crystal.cirrus.com | |
36 | ||
37 | Alan Cox : Removed 1.2 support, added 2.1 extra counters. | |
38 | ||
39 | Andrew Morton : andrewm@uow.edu.au | |
40 | : Kernel 2.3.48 | |
41 | : Handle kmalloc() failures | |
42 | : Other resource allocation fixes | |
43 | : Add SMP locks | |
44 | : Integrate Russ Nelson's ALLOW_DMA functionality back in. | |
45 | : If ALLOW_DMA is true, make DMA runtime selectable | |
46 | : Folded in changes from Cirrus (Melody Lee | |
47 | : <klee@crystal.cirrus.com>) | |
48 | : Don't call netif_wake_queue() in net_send_packet() | |
49 | : Fixed an out-of-mem bug in dma_rx() | |
50 | : Updated Documentation/networking/cs89x0.txt | |
51 | ||
52 | Andrew Morton : andrewm@uow.edu.au / Kernel 2.3.99-pre1 | |
53 | : Use skb_reserve to longword align IP header (two places) | |
54 | : Remove a delay loop from dma_rx() | |
55 | : Replace '100' with HZ | |
56 | : Clean up a couple of skb API abuses | |
57 | : Added 'cs89x0_dma=N' kernel boot option | |
58 | : Correctly initialise lp->lock in non-module compile | |
59 | ||
60 | Andrew Morton : andrewm@uow.edu.au / Kernel 2.3.99-pre4-1 | |
61 | : MOD_INC/DEC race fix (see | |
62 | : http://www.uwsg.indiana.edu/hypermail/linux/kernel/0003.3/1532.html) | |
63 | ||
64 | Andrew Morton : andrewm@uow.edu.au / Kernel 2.4.0-test7-pre2 | |
65 | : Enhanced EEPROM support to cover more devices, | |
66 | : abstracted IRQ mapping to support CONFIG_ARCH_CLPS7500 arch | |
67 | : (Jason Gunthorpe <jgg@ualberta.ca>) | |
68 | ||
69 | Andrew Morton : Kernel 2.4.0-test11-pre4 | |
70 | : Use dev->name in request_*() (Andrey Panin) | |
71 | : Fix an error-path memleak in init_module() | |
72 | : Preserve return value from request_irq() | |
73 | : Fix type of `media' module parm (Keith Owens) | |
74 | : Use SET_MODULE_OWNER() | |
75 | : Tidied up strange request_irq() abuse in net_open(). | |
76 | ||
77 | Andrew Morton : Kernel 2.4.3-pre1 | |
78 | : Request correct number of pages for DMA (Hugh Dickens) | |
79 | : Select PP_ChipID _after_ unregister_netdev in cleanup_module() | |
80 | : because unregister_netdev() calls get_stats. | |
81 | : Make `version[]' __initdata | |
82 | : Uninlined the read/write reg/word functions. | |
83 | ||
84 | Oskar Schirmer : oskar@scara.com | |
85 | : HiCO.SH4 (superh) support added (irq#1, cs89x0_media=) | |
86 | ||
87 | Deepak Saxena : dsaxena@plexity.net | |
88 | : Intel IXDP2x01 (XScale ixp2x00 NPU) platform support | |
89 | ||
032874e4 LB |
90 | Dmitry Pervushin : dpervushin@ru.mvista.com |
91 | : PNX010X platform support | |
92 | ||
9c878967 DS |
93 | Deepak Saxena : dsaxena@plexity.net |
94 | : Intel IXDP2351 platform support | |
95 | ||
5aeebe01 LB |
96 | Dmitry Pervushin : dpervushin@ru.mvista.com |
97 | : PNX010X platform support | |
98 | ||
1da177e4 LT |
99 | */ |
100 | ||
101 | /* Always include 'config.h' first in case the user wants to turn on | |
102 | or override something. */ | |
103 | #include <linux/config.h> | |
104 | #include <linux/module.h> | |
105 | ||
106 | /* | |
107 | * Set this to zero to disable DMA code | |
108 | * | |
109 | * Note that even if DMA is turned off we still support the 'dma' and 'use_dma' | |
110 | * module options so we don't break any startup scripts. | |
111 | */ | |
91e1c463 | 112 | #ifndef CONFIG_ISA_DMA_API |
1da177e4 LT |
113 | #define ALLOW_DMA 0 |
114 | #else | |
115 | #define ALLOW_DMA 1 | |
116 | #endif | |
117 | ||
118 | /* | |
119 | * Set this to zero to remove all the debug statements via | |
120 | * dead code elimination | |
121 | */ | |
122 | #define DEBUGGING 1 | |
123 | ||
124 | /* | |
125 | Sources: | |
126 | ||
127 | Crynwr packet driver epktisa. | |
128 | ||
129 | Crystal Semiconductor data sheets. | |
130 | ||
131 | */ | |
132 | ||
133 | #include <linux/errno.h> | |
134 | #include <linux/netdevice.h> | |
135 | #include <linux/etherdevice.h> | |
136 | #include <linux/kernel.h> | |
137 | #include <linux/types.h> | |
138 | #include <linux/fcntl.h> | |
139 | #include <linux/interrupt.h> | |
140 | #include <linux/ioport.h> | |
141 | #include <linux/in.h> | |
142 | #include <linux/skbuff.h> | |
143 | #include <linux/slab.h> | |
144 | #include <linux/spinlock.h> | |
145 | #include <linux/string.h> | |
146 | #include <linux/init.h> | |
147 | #include <linux/bitops.h> | |
148 | #include <linux/delay.h> | |
149 | ||
150 | #include <asm/system.h> | |
151 | #include <asm/io.h> | |
7625d483 | 152 | #include <asm/irq.h> |
1da177e4 LT |
153 | #if ALLOW_DMA |
154 | #include <asm/dma.h> | |
155 | #endif | |
156 | ||
157 | #include "cs89x0.h" | |
158 | ||
159 | static char version[] __initdata = | |
160 | "cs89x0.c: v2.4.3-pre1 Russell Nelson <nelson@crynwr.com>, Andrew Morton <andrewm@uow.edu.au>\n"; | |
161 | ||
162 | #define DRV_NAME "cs89x0" | |
163 | ||
164 | /* First, a few definitions that the brave might change. | |
165 | A zero-terminated list of I/O addresses to be probed. Some special flags.. | |
166 | Addr & 1 = Read back the address port, look for signature and reset | |
167 | the page window before probing | |
168 | Addr & 3 = Reset the page window and probe | |
169 | The CLPS eval board has the Cirrus chip at 0x80090300, in ARM IO space, | |
170 | but it is possible that a Cirrus board could be plugged into the ISA | |
171 | slots. */ | |
172 | /* The cs8900 has 4 IRQ pins, software selectable. cs8900_irq_map maps | |
173 | them to system IRQ numbers. This mapping is card specific and is set to | |
174 | the configuration of the Cirrus Eval board for this chip. */ | |
175 | #ifdef CONFIG_ARCH_CLPS7500 | |
176 | static unsigned int netcard_portlist[] __initdata = | |
177 | { 0x80090303, 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0}; | |
178 | static unsigned int cs8900_irq_map[] = {12,0,0,0}; | |
179 | #elif defined(CONFIG_SH_HICOSH4) | |
180 | static unsigned int netcard_portlist[] __initdata = | |
181 | { 0x0300, 0}; | |
182 | static unsigned int cs8900_irq_map[] = {1,0,0,0}; | |
9c878967 DS |
183 | #elif defined(CONFIG_MACH_IXDP2351) |
184 | static unsigned int netcard_portlist[] __initdata = {IXDP2351_VIRT_CS8900_BASE, 0}; | |
185 | static unsigned int cs8900_irq_map[] = {IRQ_IXDP2351_CS8900, 0, 0, 0}; | |
186 | #include <asm/irq.h> | |
1da177e4 LT |
187 | #elif defined(CONFIG_ARCH_IXDP2X01) |
188 | #include <asm/irq.h> | |
189 | static unsigned int netcard_portlist[] __initdata = {IXDP2X01_CS8900_VIRT_BASE, 0}; | |
190 | static unsigned int cs8900_irq_map[] = {IRQ_IXDP2X01_CS8900, 0, 0, 0}; | |
277cb103 | 191 | #elif defined(CONFIG_ARCH_PNX010X) |
0dd3c781 | 192 | #include <asm/irq.h> |
193 | #include <asm/arch/gpio.h> | |
194 | #define CIRRUS_DEFAULT_BASE IO_ADDRESS(EXT_STATIC2_s0_BASE + 0x200000) /* = Physical address 0x48200000 */ | |
195 | #define CIRRUS_DEFAULT_IRQ VH_INTC_INT_NUM_CASCADED_INTERRUPT_1 /* Event inputs bank 1 - ID 35/bit 3 */ | |
196 | static unsigned int netcard_portlist[] __initdata = {CIRRUS_DEFAULT_BASE, 0}; | |
197 | static unsigned int cs8900_irq_map[] = {CIRRUS_DEFAULT_IRQ, 0, 0, 0}; | |
1da177e4 LT |
198 | #else |
199 | static unsigned int netcard_portlist[] __initdata = | |
200 | { 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0}; | |
201 | static unsigned int cs8900_irq_map[] = {10,11,12,5}; | |
202 | #endif | |
203 | ||
204 | #if DEBUGGING | |
205 | static unsigned int net_debug = DEBUGGING; | |
206 | #else | |
207 | #define net_debug 0 /* gcc will remove all the debug code for us */ | |
208 | #endif | |
209 | ||
210 | /* The number of low I/O ports used by the ethercard. */ | |
211 | #define NETCARD_IO_EXTENT 16 | |
212 | ||
213 | /* we allow the user to override various values normally set in the EEPROM */ | |
214 | #define FORCE_RJ45 0x0001 /* pick one of these three */ | |
215 | #define FORCE_AUI 0x0002 | |
216 | #define FORCE_BNC 0x0004 | |
217 | ||
218 | #define FORCE_AUTO 0x0010 /* pick one of these three */ | |
219 | #define FORCE_HALF 0x0020 | |
220 | #define FORCE_FULL 0x0030 | |
221 | ||
222 | /* Information that need to be kept for each board. */ | |
223 | struct net_local { | |
224 | struct net_device_stats stats; | |
225 | int chip_type; /* one of: CS8900, CS8920, CS8920M */ | |
226 | char chip_revision; /* revision letter of the chip ('A'...) */ | |
227 | int send_cmd; /* the proper send command: TX_NOW, TX_AFTER_381, or TX_AFTER_ALL */ | |
228 | int auto_neg_cnf; /* auto-negotiation word from EEPROM */ | |
229 | int adapter_cnf; /* adapter configuration from EEPROM */ | |
230 | int isa_config; /* ISA configuration from EEPROM */ | |
231 | int irq_map; /* IRQ map from EEPROM */ | |
232 | int rx_mode; /* what mode are we in? 0, RX_MULTCAST_ACCEPT, or RX_ALL_ACCEPT */ | |
233 | int curr_rx_cfg; /* a copy of PP_RxCFG */ | |
234 | int linectl; /* either 0 or LOW_RX_SQUELCH, depending on configuration. */ | |
235 | int send_underrun; /* keep track of how many underruns in a row we get */ | |
236 | int force; /* force various values; see FORCE* above. */ | |
237 | spinlock_t lock; | |
238 | #if ALLOW_DMA | |
239 | int use_dma; /* Flag: we're using dma */ | |
240 | int dma; /* DMA channel */ | |
241 | int dmasize; /* 16 or 64 */ | |
242 | unsigned char *dma_buff; /* points to the beginning of the buffer */ | |
243 | unsigned char *end_dma_buff; /* points to the end of the buffer */ | |
244 | unsigned char *rx_dma_ptr; /* points to the next packet */ | |
245 | #endif | |
246 | }; | |
247 | ||
248 | /* Index to functions, as function prototypes. */ | |
249 | ||
250 | static int cs89x0_probe1(struct net_device *dev, int ioaddr, int modular); | |
251 | static int net_open(struct net_device *dev); | |
252 | static int net_send_packet(struct sk_buff *skb, struct net_device *dev); | |
253 | static irqreturn_t net_interrupt(int irq, void *dev_id, struct pt_regs *regs); | |
254 | static void set_multicast_list(struct net_device *dev); | |
255 | static void net_timeout(struct net_device *dev); | |
256 | static void net_rx(struct net_device *dev); | |
257 | static int net_close(struct net_device *dev); | |
258 | static struct net_device_stats *net_get_stats(struct net_device *dev); | |
259 | static void reset_chip(struct net_device *dev); | |
260 | static int get_eeprom_data(struct net_device *dev, int off, int len, int *buffer); | |
261 | static int get_eeprom_cksum(int off, int len, int *buffer); | |
262 | static int set_mac_address(struct net_device *dev, void *addr); | |
263 | static void count_rx_errors(int status, struct net_local *lp); | |
6f519165 DS |
264 | #ifdef CONFIG_NET_POLL_CONTROLLER |
265 | static void net_poll_controller(struct net_device *dev); | |
266 | #endif | |
1da177e4 LT |
267 | #if ALLOW_DMA |
268 | static void get_dma_channel(struct net_device *dev); | |
269 | static void release_dma_buff(struct net_local *lp); | |
270 | #endif | |
271 | ||
272 | /* Example routines you must write ;->. */ | |
273 | #define tx_done(dev) 1 | |
274 | ||
275 | /* | |
276 | * Permit 'cs89x0_dma=N' in the kernel boot environment | |
277 | */ | |
278 | #if !defined(MODULE) && (ALLOW_DMA != 0) | |
279 | static int g_cs89x0_dma; | |
280 | ||
281 | static int __init dma_fn(char *str) | |
282 | { | |
283 | g_cs89x0_dma = simple_strtol(str,NULL,0); | |
284 | return 1; | |
285 | } | |
286 | ||
287 | __setup("cs89x0_dma=", dma_fn); | |
288 | #endif /* !defined(MODULE) && (ALLOW_DMA != 0) */ | |
289 | ||
290 | #ifndef MODULE | |
291 | static int g_cs89x0_media__force; | |
292 | ||
293 | static int __init media_fn(char *str) | |
294 | { | |
295 | if (!strcmp(str, "rj45")) g_cs89x0_media__force = FORCE_RJ45; | |
296 | else if (!strcmp(str, "aui")) g_cs89x0_media__force = FORCE_AUI; | |
297 | else if (!strcmp(str, "bnc")) g_cs89x0_media__force = FORCE_BNC; | |
298 | return 1; | |
299 | } | |
300 | ||
301 | __setup("cs89x0_media=", media_fn); | |
302 | ||
303 | \f | |
304 | /* Check for a network adaptor of this type, and return '0' iff one exists. | |
305 | If dev->base_addr == 0, probe all likely locations. | |
306 | If dev->base_addr == 1, always return failure. | |
307 | If dev->base_addr == 2, allocate space for the device and return success | |
308 | (detachable devices only). | |
309 | Return 0 on success. | |
310 | */ | |
311 | ||
312 | struct net_device * __init cs89x0_probe(int unit) | |
313 | { | |
314 | struct net_device *dev = alloc_etherdev(sizeof(struct net_local)); | |
315 | unsigned *port; | |
316 | int err = 0; | |
317 | int irq; | |
318 | int io; | |
319 | ||
320 | if (!dev) | |
321 | return ERR_PTR(-ENODEV); | |
322 | ||
323 | sprintf(dev->name, "eth%d", unit); | |
324 | netdev_boot_setup_check(dev); | |
325 | io = dev->base_addr; | |
326 | irq = dev->irq; | |
327 | ||
328 | if (net_debug) | |
329 | printk("cs89x0:cs89x0_probe(0x%x)\n", io); | |
330 | ||
331 | if (io > 0x1ff) { /* Check a single specified location. */ | |
332 | err = cs89x0_probe1(dev, io, 0); | |
333 | } else if (io != 0) { /* Don't probe at all. */ | |
334 | err = -ENXIO; | |
335 | } else { | |
336 | for (port = netcard_portlist; *port; port++) { | |
337 | if (cs89x0_probe1(dev, *port, 0) == 0) | |
338 | break; | |
339 | dev->irq = irq; | |
340 | } | |
341 | if (!*port) | |
342 | err = -ENODEV; | |
343 | } | |
344 | if (err) | |
345 | goto out; | |
1da177e4 | 346 | return dev; |
1da177e4 LT |
347 | out: |
348 | free_netdev(dev); | |
349 | printk(KERN_WARNING "cs89x0: no cs8900 or cs8920 detected. Be sure to disable PnP with SETUP\n"); | |
350 | return ERR_PTR(err); | |
351 | } | |
352 | #endif | |
353 | ||
9c878967 DS |
354 | #if defined(CONFIG_MACH_IXDP2351) |
355 | static u16 | |
356 | readword(unsigned long base_addr, int portno) | |
357 | { | |
358 | return __raw_readw(base_addr + (portno << 1)); | |
359 | } | |
360 | ||
361 | static void | |
362 | writeword(unsigned long base_addr, int portno, u16 value) | |
363 | { | |
364 | __raw_writew(value, base_addr + (portno << 1)); | |
365 | } | |
366 | #elif defined(CONFIG_ARCH_IXDP2X01) | |
a07f0dbe | 367 | static u16 |
3b68d70d LB |
368 | readword(unsigned long base_addr, int portno) |
369 | { | |
a07f0dbe | 370 | return __raw_readl(base_addr + (portno << 1)); |
3b68d70d LB |
371 | } |
372 | ||
373 | static void | |
a07f0dbe | 374 | writeword(unsigned long base_addr, int portno, u16 value) |
3b68d70d | 375 | { |
a07f0dbe | 376 | __raw_writel(value, base_addr + (portno << 1)); |
3b68d70d | 377 | } |
580d7b8c | 378 | #elif defined(CONFIG_ARCH_PNX010X) |
a07f0dbe | 379 | static u16 |
3b68d70d LB |
380 | readword(unsigned long base_addr, int portno) |
381 | { | |
382 | return inw(base_addr + (portno << 1)); | |
383 | } | |
384 | ||
385 | static void | |
a07f0dbe | 386 | writeword(unsigned long base_addr, int portno, u16 value) |
3b68d70d LB |
387 | { |
388 | outw(value, base_addr + (portno << 1)); | |
389 | } | |
390 | #else | |
a07f0dbe | 391 | static u16 |
0d5affcf | 392 | readword(unsigned long base_addr, int portno) |
1da177e4 | 393 | { |
0d5affcf | 394 | return inw(base_addr + portno); |
1da177e4 LT |
395 | } |
396 | ||
397 | static void | |
a07f0dbe | 398 | writeword(unsigned long base_addr, int portno, u16 value) |
1da177e4 | 399 | { |
0d5affcf | 400 | outw(value, base_addr + portno); |
1da177e4 | 401 | } |
3b68d70d | 402 | #endif |
1da177e4 | 403 | |
084f746a LB |
404 | static void |
405 | readwords(unsigned long base_addr, int portno, void *buf, int length) | |
406 | { | |
407 | u8 *buf8 = (u8 *)buf; | |
408 | ||
409 | do { | |
a07f0dbe | 410 | u16 tmp16; |
084f746a | 411 | |
a07f0dbe LB |
412 | tmp16 = readword(base_addr, portno); |
413 | *buf8++ = (u8)tmp16; | |
414 | *buf8++ = (u8)(tmp16 >> 8); | |
084f746a LB |
415 | } while (--length); |
416 | } | |
417 | ||
418 | static void | |
419 | writewords(unsigned long base_addr, int portno, void *buf, int length) | |
420 | { | |
421 | u8 *buf8 = (u8 *)buf; | |
422 | ||
423 | do { | |
a07f0dbe | 424 | u16 tmp16; |
084f746a | 425 | |
a07f0dbe LB |
426 | tmp16 = *buf8++; |
427 | tmp16 |= (*buf8++) << 8; | |
428 | writeword(base_addr, portno, tmp16); | |
084f746a LB |
429 | } while (--length); |
430 | } | |
431 | ||
a07f0dbe LB |
432 | static u16 |
433 | readreg(struct net_device *dev, u16 regno) | |
1da177e4 | 434 | { |
3eaa5e7d LB |
435 | writeword(dev->base_addr, ADD_PORT, regno); |
436 | return readword(dev->base_addr, DATA_PORT); | |
1da177e4 LT |
437 | } |
438 | ||
439 | static void | |
a07f0dbe | 440 | writereg(struct net_device *dev, u16 regno, u16 value) |
1da177e4 | 441 | { |
3eaa5e7d LB |
442 | writeword(dev->base_addr, ADD_PORT, regno); |
443 | writeword(dev->base_addr, DATA_PORT, value); | |
1da177e4 LT |
444 | } |
445 | ||
446 | static int __init | |
447 | wait_eeprom_ready(struct net_device *dev) | |
448 | { | |
449 | int timeout = jiffies; | |
450 | /* check to see if the EEPROM is ready, a timeout is used - | |
451 | just in case EEPROM is ready when SI_BUSY in the | |
452 | PP_SelfST is clear */ | |
453 | while(readreg(dev, PP_SelfST) & SI_BUSY) | |
454 | if (jiffies - timeout >= 40) | |
455 | return -1; | |
456 | return 0; | |
457 | } | |
458 | ||
459 | static int __init | |
460 | get_eeprom_data(struct net_device *dev, int off, int len, int *buffer) | |
461 | { | |
462 | int i; | |
463 | ||
464 | if (net_debug > 3) printk("EEPROM data from %x for %x:\n",off,len); | |
465 | for (i = 0; i < len; i++) { | |
466 | if (wait_eeprom_ready(dev) < 0) return -1; | |
467 | /* Now send the EEPROM read command and EEPROM location to read */ | |
468 | writereg(dev, PP_EECMD, (off + i) | EEPROM_READ_CMD); | |
469 | if (wait_eeprom_ready(dev) < 0) return -1; | |
470 | buffer[i] = readreg(dev, PP_EEData); | |
471 | if (net_debug > 3) printk("%04x ", buffer[i]); | |
472 | } | |
473 | if (net_debug > 3) printk("\n"); | |
474 | return 0; | |
475 | } | |
476 | ||
477 | static int __init | |
478 | get_eeprom_cksum(int off, int len, int *buffer) | |
479 | { | |
480 | int i, cksum; | |
481 | ||
482 | cksum = 0; | |
483 | for (i = 0; i < len; i++) | |
484 | cksum += buffer[i]; | |
485 | cksum &= 0xffff; | |
486 | if (cksum == 0) | |
487 | return 0; | |
488 | return -1; | |
489 | } | |
490 | ||
6f519165 DS |
491 | #ifdef CONFIG_NET_POLL_CONTROLLER |
492 | /* | |
493 | * Polling receive - used by netconsole and other diagnostic tools | |
494 | * to allow network i/o with interrupts disabled. | |
495 | */ | |
496 | static void net_poll_controller(struct net_device *dev) | |
497 | { | |
498 | disable_irq(dev->irq); | |
499 | net_interrupt(dev->irq, dev, NULL); | |
500 | enable_irq(dev->irq); | |
501 | } | |
502 | #endif | |
503 | ||
1da177e4 LT |
504 | /* This is the real probe routine. Linux has a history of friendly device |
505 | probes on the ISA bus. A good device probes avoids doing writes, and | |
506 | verifies that the correct device exists and functions. | |
507 | Return 0 on success. | |
508 | */ | |
509 | ||
510 | static int __init | |
511 | cs89x0_probe1(struct net_device *dev, int ioaddr, int modular) | |
512 | { | |
513 | struct net_local *lp = netdev_priv(dev); | |
514 | static unsigned version_printed; | |
515 | int i; | |
01bdc033 | 516 | int tmp; |
1da177e4 LT |
517 | unsigned rev_type = 0; |
518 | int eeprom_buff[CHKSUM_LEN]; | |
519 | int retval; | |
520 | ||
521 | SET_MODULE_OWNER(dev); | |
522 | /* Initialize the device structure. */ | |
523 | if (!modular) { | |
524 | memset(lp, 0, sizeof(*lp)); | |
525 | spin_lock_init(&lp->lock); | |
526 | #ifndef MODULE | |
527 | #if ALLOW_DMA | |
528 | if (g_cs89x0_dma) { | |
529 | lp->use_dma = 1; | |
530 | lp->dma = g_cs89x0_dma; | |
531 | lp->dmasize = 16; /* Could make this an option... */ | |
532 | } | |
533 | #endif | |
534 | lp->force = g_cs89x0_media__force; | |
535 | #endif | |
536 | } | |
537 | ||
277cb103 | 538 | #ifdef CONFIG_ARCH_PNX010X |
0dd3c781 | 539 | initialize_ebi(); |
540 | ||
541 | /* Map GPIO registers for the pins connected to the CS8900a. */ | |
542 | if (map_cirrus_gpio() < 0) | |
543 | return -ENODEV; | |
544 | ||
545 | reset_cirrus(); | |
546 | ||
547 | /* Map event-router registers. */ | |
548 | if (map_event_router() < 0) | |
549 | return -ENODEV; | |
550 | ||
551 | enable_cirrus_irq(); | |
552 | ||
553 | unmap_cirrus_gpio(); | |
554 | unmap_event_router(); | |
555 | ||
556 | dev->base_addr = ioaddr; | |
557 | ||
558 | for (i = 0 ; i < 3 ; i++) | |
559 | readreg(dev, 0); | |
560 | #endif | |
561 | ||
1da177e4 LT |
562 | /* Grab the region so we can find another board if autoIRQ fails. */ |
563 | /* WTF is going on here? */ | |
564 | if (!request_region(ioaddr & ~3, NETCARD_IO_EXTENT, DRV_NAME)) { | |
565 | printk(KERN_ERR "%s: request_region(0x%x, 0x%x) failed\n", | |
566 | DRV_NAME, ioaddr, NETCARD_IO_EXTENT); | |
567 | retval = -EBUSY; | |
568 | goto out1; | |
569 | } | |
570 | ||
571 | #ifdef CONFIG_SH_HICOSH4 | |
572 | /* truely reset the chip */ | |
fc8c7d79 LB |
573 | writeword(ioaddr, ADD_PORT, 0x0114); |
574 | writeword(ioaddr, DATA_PORT, 0x0040); | |
1da177e4 LT |
575 | #endif |
576 | ||
577 | /* if they give us an odd I/O address, then do ONE write to | |
578 | the address port, to get it back to address zero, where we | |
579 | expect to find the EISA signature word. An IO with a base of 0x3 | |
580 | will skip the test for the ADD_PORT. */ | |
581 | if (ioaddr & 1) { | |
582 | if (net_debug > 1) | |
583 | printk(KERN_INFO "%s: odd ioaddr 0x%x\n", dev->name, ioaddr); | |
584 | if ((ioaddr & 2) != 2) | |
fc8c7d79 | 585 | if ((readword(ioaddr & ~3, ADD_PORT) & ADD_MASK) != ADD_SIG) { |
1da177e4 | 586 | printk(KERN_ERR "%s: bad signature 0x%x\n", |
fc8c7d79 | 587 | dev->name, readword(ioaddr & ~3, ADD_PORT)); |
1da177e4 LT |
588 | retval = -ENODEV; |
589 | goto out2; | |
590 | } | |
591 | } | |
fc8c7d79 LB |
592 | printk(KERN_DEBUG "PP_addr at %x[%x]: 0x%x\n", |
593 | ioaddr, ADD_PORT, readword(ioaddr, ADD_PORT)); | |
1da177e4 LT |
594 | |
595 | ioaddr &= ~3; | |
fc8c7d79 | 596 | writeword(ioaddr, ADD_PORT, PP_ChipID); |
1da177e4 | 597 | |
fc8c7d79 | 598 | tmp = readword(ioaddr, DATA_PORT); |
01bdc033 | 599 | if (tmp != CHIP_EISA_ID_SIG) { |
fc8c7d79 | 600 | printk(KERN_DEBUG "%s: incorrect signature at %x[%x]: 0x%x!=" |
01bdc033 | 601 | CHIP_EISA_ID_SIG_STR "\n", |
fc8c7d79 | 602 | dev->name, ioaddr, DATA_PORT, tmp); |
1da177e4 LT |
603 | retval = -ENODEV; |
604 | goto out2; | |
605 | } | |
606 | ||
607 | /* Fill in the 'dev' fields. */ | |
608 | dev->base_addr = ioaddr; | |
609 | ||
610 | /* get the chip type */ | |
611 | rev_type = readreg(dev, PRODUCT_ID_ADD); | |
612 | lp->chip_type = rev_type &~ REVISON_BITS; | |
613 | lp->chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A'; | |
614 | ||
615 | /* Check the chip type and revision in order to set the correct send command | |
616 | CS8920 revision C and CS8900 revision F can use the faster send. */ | |
617 | lp->send_cmd = TX_AFTER_381; | |
618 | if (lp->chip_type == CS8900 && lp->chip_revision >= 'F') | |
619 | lp->send_cmd = TX_NOW; | |
620 | if (lp->chip_type != CS8900 && lp->chip_revision >= 'C') | |
621 | lp->send_cmd = TX_NOW; | |
622 | ||
623 | if (net_debug && version_printed++ == 0) | |
624 | printk(version); | |
625 | ||
626 | printk(KERN_INFO "%s: cs89%c0%s rev %c found at %#3lx ", | |
627 | dev->name, | |
628 | lp->chip_type==CS8900?'0':'2', | |
629 | lp->chip_type==CS8920M?"M":"", | |
630 | lp->chip_revision, | |
631 | dev->base_addr); | |
632 | ||
633 | reset_chip(dev); | |
634 | ||
635 | /* Here we read the current configuration of the chip. If there | |
636 | is no Extended EEPROM then the idea is to not disturb the chip | |
637 | configuration, it should have been correctly setup by automatic | |
638 | EEPROM read on reset. So, if the chip says it read the EEPROM | |
639 | the driver will always do *something* instead of complain that | |
640 | adapter_cnf is 0. */ | |
641 | ||
642 | #ifdef CONFIG_SH_HICOSH4 | |
643 | if (1) { | |
644 | /* For the HiCO.SH4 board, things are different: we don't | |
645 | have EEPROM, but there is some data in flash, so we go | |
646 | get it there directly (MAC). */ | |
647 | __u16 *confd; | |
648 | short cnt; | |
649 | if (((* (volatile __u32 *) 0xa0013ff0) & 0x00ffffff) | |
650 | == 0x006c3000) { | |
651 | confd = (__u16*) 0xa0013fc0; | |
652 | } else { | |
653 | confd = (__u16*) 0xa001ffc0; | |
654 | } | |
655 | cnt = (*confd++ & 0x00ff) >> 1; | |
656 | while (--cnt > 0) { | |
657 | __u16 j = *confd++; | |
658 | ||
659 | switch (j & 0x0fff) { | |
660 | case PP_IA: | |
661 | for (i = 0; i < ETH_ALEN/2; i++) { | |
662 | dev->dev_addr[i*2] = confd[i] & 0xFF; | |
663 | dev->dev_addr[i*2+1] = confd[i] >> 8; | |
664 | } | |
665 | break; | |
666 | } | |
667 | j = (j >> 12) + 1; | |
668 | confd += j; | |
669 | cnt -= j; | |
670 | } | |
671 | } else | |
672 | #endif | |
673 | ||
674 | if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) == | |
675 | (EEPROM_OK|EEPROM_PRESENT)) { | |
676 | /* Load the MAC. */ | |
677 | for (i=0; i < ETH_ALEN/2; i++) { | |
678 | unsigned int Addr; | |
679 | Addr = readreg(dev, PP_IA+i*2); | |
680 | dev->dev_addr[i*2] = Addr & 0xFF; | |
681 | dev->dev_addr[i*2+1] = Addr >> 8; | |
682 | } | |
683 | ||
684 | /* Load the Adapter Configuration. | |
685 | Note: Barring any more specific information from some | |
686 | other source (ie EEPROM+Schematics), we would not know | |
687 | how to operate a 10Base2 interface on the AUI port. | |
688 | However, since we do read the status of HCB1 and use | |
689 | settings that always result in calls to control_dc_dc(dev,0) | |
690 | a BNC interface should work if the enable pin | |
691 | (dc/dc converter) is on HCB1. It will be called AUI | |
692 | however. */ | |
693 | ||
694 | lp->adapter_cnf = 0; | |
695 | i = readreg(dev, PP_LineCTL); | |
696 | /* Preserve the setting of the HCB1 pin. */ | |
697 | if ((i & (HCB1 | HCB1_ENBL)) == (HCB1 | HCB1_ENBL)) | |
698 | lp->adapter_cnf |= A_CNF_DC_DC_POLARITY; | |
699 | /* Save the sqelch bit */ | |
700 | if ((i & LOW_RX_SQUELCH) == LOW_RX_SQUELCH) | |
701 | lp->adapter_cnf |= A_CNF_EXTND_10B_2 | A_CNF_LOW_RX_SQUELCH; | |
702 | /* Check if the card is in 10Base-t only mode */ | |
703 | if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == 0) | |
704 | lp->adapter_cnf |= A_CNF_10B_T | A_CNF_MEDIA_10B_T; | |
705 | /* Check if the card is in AUI only mode */ | |
706 | if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUI_ONLY) | |
707 | lp->adapter_cnf |= A_CNF_AUI | A_CNF_MEDIA_AUI; | |
708 | /* Check if the card is in Auto mode. */ | |
709 | if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUTO_AUI_10BASET) | |
710 | lp->adapter_cnf |= A_CNF_AUI | A_CNF_10B_T | | |
711 | A_CNF_MEDIA_AUI | A_CNF_MEDIA_10B_T | A_CNF_MEDIA_AUTO; | |
712 | ||
713 | if (net_debug > 1) | |
714 | printk(KERN_INFO "%s: PP_LineCTL=0x%x, adapter_cnf=0x%x\n", | |
715 | dev->name, i, lp->adapter_cnf); | |
716 | ||
717 | /* IRQ. Other chips already probe, see below. */ | |
718 | if (lp->chip_type == CS8900) | |
719 | lp->isa_config = readreg(dev, PP_CS8900_ISAINT) & INT_NO_MASK; | |
720 | ||
721 | printk( "[Cirrus EEPROM] "); | |
722 | } | |
723 | ||
724 | printk("\n"); | |
725 | ||
726 | /* First check to see if an EEPROM is attached. */ | |
727 | #ifdef CONFIG_SH_HICOSH4 /* no EEPROM on HiCO, don't hazzle with it here */ | |
728 | if (1) { | |
729 | printk(KERN_NOTICE "cs89x0: No EEPROM on HiCO.SH4\n"); | |
730 | } else | |
731 | #endif | |
732 | if ((readreg(dev, PP_SelfST) & EEPROM_PRESENT) == 0) | |
733 | printk(KERN_WARNING "cs89x0: No EEPROM, relying on command line....\n"); | |
734 | else if (get_eeprom_data(dev, START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) { | |
735 | printk(KERN_WARNING "\ncs89x0: EEPROM read failed, relying on command line.\n"); | |
736 | } else if (get_eeprom_cksum(START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) { | |
737 | /* Check if the chip was able to read its own configuration starting | |
738 | at 0 in the EEPROM*/ | |
739 | if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) != | |
740 | (EEPROM_OK|EEPROM_PRESENT)) | |
741 | printk(KERN_WARNING "cs89x0: Extended EEPROM checksum bad and no Cirrus EEPROM, relying on command line\n"); | |
742 | ||
743 | } else { | |
744 | /* This reads an extended EEPROM that is not documented | |
745 | in the CS8900 datasheet. */ | |
746 | ||
747 | /* get transmission control word but keep the autonegotiation bits */ | |
748 | if (!lp->auto_neg_cnf) lp->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET/2]; | |
749 | /* Store adapter configuration */ | |
750 | if (!lp->adapter_cnf) lp->adapter_cnf = eeprom_buff[ADAPTER_CNF_OFFSET/2]; | |
751 | /* Store ISA configuration */ | |
752 | lp->isa_config = eeprom_buff[ISA_CNF_OFFSET/2]; | |
753 | dev->mem_start = eeprom_buff[PACKET_PAGE_OFFSET/2] << 8; | |
754 | ||
755 | /* eeprom_buff has 32-bit ints, so we can't just memcpy it */ | |
756 | /* store the initial memory base address */ | |
757 | for (i = 0; i < ETH_ALEN/2; i++) { | |
758 | dev->dev_addr[i*2] = eeprom_buff[i]; | |
759 | dev->dev_addr[i*2+1] = eeprom_buff[i] >> 8; | |
760 | } | |
761 | if (net_debug > 1) | |
762 | printk(KERN_DEBUG "%s: new adapter_cnf: 0x%x\n", | |
763 | dev->name, lp->adapter_cnf); | |
764 | } | |
765 | ||
766 | /* allow them to force multiple transceivers. If they force multiple, autosense */ | |
767 | { | |
768 | int count = 0; | |
769 | if (lp->force & FORCE_RJ45) {lp->adapter_cnf |= A_CNF_10B_T; count++; } | |
770 | if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_AUI; count++; } | |
771 | if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_10B_2; count++; } | |
772 | if (count > 1) {lp->adapter_cnf |= A_CNF_MEDIA_AUTO; } | |
773 | else if (lp->force & FORCE_RJ45){lp->adapter_cnf |= A_CNF_MEDIA_10B_T; } | |
774 | else if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_MEDIA_AUI; } | |
775 | else if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_MEDIA_10B_2; } | |
776 | } | |
777 | ||
778 | if (net_debug > 1) | |
779 | printk(KERN_DEBUG "%s: after force 0x%x, adapter_cnf=0x%x\n", | |
780 | dev->name, lp->force, lp->adapter_cnf); | |
781 | ||
782 | /* FIXME: We don't let you set dc-dc polarity or low RX squelch from the command line: add it here */ | |
783 | ||
784 | /* FIXME: We don't let you set the IMM bit from the command line: add it to lp->auto_neg_cnf here */ | |
785 | ||
786 | /* FIXME: we don't set the Ethernet address on the command line. Use | |
787 | ifconfig IFACE hw ether AABBCCDDEEFF */ | |
788 | ||
789 | printk(KERN_INFO "cs89x0 media %s%s%s", | |
790 | (lp->adapter_cnf & A_CNF_10B_T)?"RJ-45,":"", | |
791 | (lp->adapter_cnf & A_CNF_AUI)?"AUI,":"", | |
792 | (lp->adapter_cnf & A_CNF_10B_2)?"BNC,":""); | |
793 | ||
794 | lp->irq_map = 0xffff; | |
795 | ||
796 | /* If this is a CS8900 then no pnp soft */ | |
797 | if (lp->chip_type != CS8900 && | |
798 | /* Check if the ISA IRQ has been set */ | |
799 | (i = readreg(dev, PP_CS8920_ISAINT) & 0xff, | |
800 | (i != 0 && i < CS8920_NO_INTS))) { | |
801 | if (!dev->irq) | |
802 | dev->irq = i; | |
803 | } else { | |
804 | i = lp->isa_config & INT_NO_MASK; | |
805 | if (lp->chip_type == CS8900) { | |
9c878967 | 806 | #if defined(CONFIG_MACH_IXDP2351) || defined(CONFIG_ARCH_IXDP2X01) || defined(CONFIG_ARCH_PNX010X) |
1da177e4 LT |
807 | i = cs8900_irq_map[0]; |
808 | #else | |
809 | /* Translate the IRQ using the IRQ mapping table. */ | |
810 | if (i >= sizeof(cs8900_irq_map)/sizeof(cs8900_irq_map[0])) | |
811 | printk("\ncs89x0: invalid ISA interrupt number %d\n", i); | |
812 | else | |
813 | i = cs8900_irq_map[i]; | |
814 | ||
815 | lp->irq_map = CS8900_IRQ_MAP; /* fixed IRQ map for CS8900 */ | |
816 | } else { | |
817 | int irq_map_buff[IRQ_MAP_LEN/2]; | |
818 | ||
819 | if (get_eeprom_data(dev, IRQ_MAP_EEPROM_DATA, | |
820 | IRQ_MAP_LEN/2, | |
821 | irq_map_buff) >= 0) { | |
822 | if ((irq_map_buff[0] & 0xff) == PNP_IRQ_FRMT) | |
823 | lp->irq_map = (irq_map_buff[0]>>8) | (irq_map_buff[1] << 8); | |
824 | } | |
825 | #endif | |
826 | } | |
827 | if (!dev->irq) | |
828 | dev->irq = i; | |
829 | } | |
830 | ||
831 | printk(" IRQ %d", dev->irq); | |
832 | ||
833 | #if ALLOW_DMA | |
834 | if (lp->use_dma) { | |
835 | get_dma_channel(dev); | |
836 | printk(", DMA %d", dev->dma); | |
837 | } | |
838 | else | |
839 | #endif | |
840 | { | |
841 | printk(", programmed I/O"); | |
842 | } | |
843 | ||
844 | /* print the ethernet address. */ | |
845 | printk(", MAC"); | |
846 | for (i = 0; i < ETH_ALEN; i++) | |
847 | { | |
848 | printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]); | |
849 | } | |
850 | ||
851 | dev->open = net_open; | |
852 | dev->stop = net_close; | |
853 | dev->tx_timeout = net_timeout; | |
854 | dev->watchdog_timeo = HZ; | |
855 | dev->hard_start_xmit = net_send_packet; | |
856 | dev->get_stats = net_get_stats; | |
857 | dev->set_multicast_list = set_multicast_list; | |
858 | dev->set_mac_address = set_mac_address; | |
6f519165 DS |
859 | #ifdef CONFIG_NET_POLL_CONTROLLER |
860 | dev->poll_controller = net_poll_controller; | |
861 | #endif | |
1da177e4 LT |
862 | |
863 | printk("\n"); | |
864 | if (net_debug) | |
865 | printk("cs89x0_probe1() successful\n"); | |
b1fc5505 HX |
866 | |
867 | retval = register_netdev(dev); | |
868 | if (retval) | |
869 | goto out3; | |
1da177e4 | 870 | return 0; |
b1fc5505 | 871 | out3: |
fc8c7d79 | 872 | writeword(dev->base_addr, ADD_PORT, PP_ChipID); |
1da177e4 LT |
873 | out2: |
874 | release_region(ioaddr & ~3, NETCARD_IO_EXTENT); | |
875 | out1: | |
876 | return retval; | |
877 | } | |
878 | ||
879 | \f | |
880 | /********************************* | |
881 | * This page contains DMA routines | |
882 | **********************************/ | |
883 | ||
884 | #if ALLOW_DMA | |
885 | ||
886 | #define dma_page_eq(ptr1, ptr2) ((long)(ptr1)>>17 == (long)(ptr2)>>17) | |
887 | ||
888 | static void | |
889 | get_dma_channel(struct net_device *dev) | |
890 | { | |
891 | struct net_local *lp = netdev_priv(dev); | |
892 | ||
893 | if (lp->dma) { | |
894 | dev->dma = lp->dma; | |
895 | lp->isa_config |= ISA_RxDMA; | |
896 | } else { | |
897 | if ((lp->isa_config & ANY_ISA_DMA) == 0) | |
898 | return; | |
899 | dev->dma = lp->isa_config & DMA_NO_MASK; | |
900 | if (lp->chip_type == CS8900) | |
901 | dev->dma += 5; | |
902 | if (dev->dma < 5 || dev->dma > 7) { | |
903 | lp->isa_config &= ~ANY_ISA_DMA; | |
904 | return; | |
905 | } | |
906 | } | |
907 | return; | |
908 | } | |
909 | ||
910 | static void | |
911 | write_dma(struct net_device *dev, int chip_type, int dma) | |
912 | { | |
913 | struct net_local *lp = netdev_priv(dev); | |
914 | if ((lp->isa_config & ANY_ISA_DMA) == 0) | |
915 | return; | |
916 | if (chip_type == CS8900) { | |
917 | writereg(dev, PP_CS8900_ISADMA, dma-5); | |
918 | } else { | |
919 | writereg(dev, PP_CS8920_ISADMA, dma); | |
920 | } | |
921 | } | |
922 | ||
923 | static void | |
924 | set_dma_cfg(struct net_device *dev) | |
925 | { | |
926 | struct net_local *lp = netdev_priv(dev); | |
927 | ||
928 | if (lp->use_dma) { | |
929 | if ((lp->isa_config & ANY_ISA_DMA) == 0) { | |
930 | if (net_debug > 3) | |
931 | printk("set_dma_cfg(): no DMA\n"); | |
932 | return; | |
933 | } | |
934 | if (lp->isa_config & ISA_RxDMA) { | |
935 | lp->curr_rx_cfg |= RX_DMA_ONLY; | |
936 | if (net_debug > 3) | |
937 | printk("set_dma_cfg(): RX_DMA_ONLY\n"); | |
938 | } else { | |
939 | lp->curr_rx_cfg |= AUTO_RX_DMA; /* not that we support it... */ | |
940 | if (net_debug > 3) | |
941 | printk("set_dma_cfg(): AUTO_RX_DMA\n"); | |
942 | } | |
943 | } | |
944 | } | |
945 | ||
946 | static int | |
947 | dma_bufcfg(struct net_device *dev) | |
948 | { | |
949 | struct net_local *lp = netdev_priv(dev); | |
950 | if (lp->use_dma) | |
951 | return (lp->isa_config & ANY_ISA_DMA)? RX_DMA_ENBL : 0; | |
952 | else | |
953 | return 0; | |
954 | } | |
955 | ||
956 | static int | |
957 | dma_busctl(struct net_device *dev) | |
958 | { | |
959 | int retval = 0; | |
960 | struct net_local *lp = netdev_priv(dev); | |
961 | if (lp->use_dma) { | |
962 | if (lp->isa_config & ANY_ISA_DMA) | |
963 | retval |= RESET_RX_DMA; /* Reset the DMA pointer */ | |
964 | if (lp->isa_config & DMA_BURST) | |
965 | retval |= DMA_BURST_MODE; /* Does ISA config specify DMA burst ? */ | |
966 | if (lp->dmasize == 64) | |
967 | retval |= RX_DMA_SIZE_64K; /* did they ask for 64K? */ | |
968 | retval |= MEMORY_ON; /* we need memory enabled to use DMA. */ | |
969 | } | |
970 | return retval; | |
971 | } | |
972 | ||
973 | static void | |
974 | dma_rx(struct net_device *dev) | |
975 | { | |
976 | struct net_local *lp = netdev_priv(dev); | |
977 | struct sk_buff *skb; | |
978 | int status, length; | |
979 | unsigned char *bp = lp->rx_dma_ptr; | |
980 | ||
981 | status = bp[0] + (bp[1]<<8); | |
982 | length = bp[2] + (bp[3]<<8); | |
983 | bp += 4; | |
984 | if (net_debug > 5) { | |
985 | printk( "%s: receiving DMA packet at %lx, status %x, length %x\n", | |
986 | dev->name, (unsigned long)bp, status, length); | |
987 | } | |
988 | if ((status & RX_OK) == 0) { | |
989 | count_rx_errors(status, lp); | |
990 | goto skip_this_frame; | |
991 | } | |
992 | ||
993 | /* Malloc up new buffer. */ | |
994 | skb = dev_alloc_skb(length + 2); | |
995 | if (skb == NULL) { | |
996 | if (net_debug) /* I don't think we want to do this to a stressed system */ | |
997 | printk("%s: Memory squeeze, dropping packet.\n", dev->name); | |
998 | lp->stats.rx_dropped++; | |
999 | ||
1000 | /* AKPM: advance bp to the next frame */ | |
1001 | skip_this_frame: | |
1002 | bp += (length + 3) & ~3; | |
1003 | if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024; | |
1004 | lp->rx_dma_ptr = bp; | |
1005 | return; | |
1006 | } | |
1007 | skb_reserve(skb, 2); /* longword align L3 header */ | |
1008 | skb->dev = dev; | |
1009 | ||
1010 | if (bp + length > lp->end_dma_buff) { | |
1011 | int semi_cnt = lp->end_dma_buff - bp; | |
1012 | memcpy(skb_put(skb,semi_cnt), bp, semi_cnt); | |
1013 | memcpy(skb_put(skb,length - semi_cnt), lp->dma_buff, | |
1014 | length - semi_cnt); | |
1015 | } else { | |
1016 | memcpy(skb_put(skb,length), bp, length); | |
1017 | } | |
1018 | bp += (length + 3) & ~3; | |
1019 | if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024; | |
1020 | lp->rx_dma_ptr = bp; | |
1021 | ||
1022 | if (net_debug > 3) { | |
1023 | printk( "%s: received %d byte DMA packet of type %x\n", | |
1024 | dev->name, length, | |
1025 | (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]); | |
1026 | } | |
1027 | skb->protocol=eth_type_trans(skb,dev); | |
1028 | netif_rx(skb); | |
1029 | dev->last_rx = jiffies; | |
1030 | lp->stats.rx_packets++; | |
1031 | lp->stats.rx_bytes += length; | |
1032 | } | |
1033 | ||
1034 | #endif /* ALLOW_DMA */ | |
1035 | ||
1036 | void __init reset_chip(struct net_device *dev) | |
1037 | { | |
9c878967 | 1038 | #if !defined(CONFIG_MACH_IXDP2351) && !defined(CONFIG_ARCH_IXDP2X01) |
1da177e4 LT |
1039 | struct net_local *lp = netdev_priv(dev); |
1040 | int ioaddr = dev->base_addr; | |
1041 | #endif | |
1042 | int reset_start_time; | |
1043 | ||
1044 | writereg(dev, PP_SelfCTL, readreg(dev, PP_SelfCTL) | POWER_ON_RESET); | |
1045 | ||
1046 | /* wait 30 ms */ | |
1047 | msleep(30); | |
1048 | ||
9c878967 | 1049 | #if !defined(CONFIG_MACH_IXDP2351) && !defined(CONFIG_ARCH_IXDP2X01) |
1da177e4 LT |
1050 | if (lp->chip_type != CS8900) { |
1051 | /* Hardware problem requires PNP registers to be reconfigured after a reset */ | |
fc8c7d79 | 1052 | writeword(ioaddr, ADD_PORT, PP_CS8920_ISAINT); |
1da177e4 LT |
1053 | outb(dev->irq, ioaddr + DATA_PORT); |
1054 | outb(0, ioaddr + DATA_PORT + 1); | |
1055 | ||
fc8c7d79 | 1056 | writeword(ioaddr, ADD_PORT, PP_CS8920_ISAMemB); |
1da177e4 LT |
1057 | outb((dev->mem_start >> 16) & 0xff, ioaddr + DATA_PORT); |
1058 | outb((dev->mem_start >> 8) & 0xff, ioaddr + DATA_PORT + 1); | |
1059 | } | |
1060 | #endif /* IXDP2x01 */ | |
1061 | ||
1062 | /* Wait until the chip is reset */ | |
1063 | reset_start_time = jiffies; | |
1064 | while( (readreg(dev, PP_SelfST) & INIT_DONE) == 0 && jiffies - reset_start_time < 2) | |
1065 | ; | |
1066 | } | |
1067 | ||
1068 | \f | |
1069 | static void | |
1070 | control_dc_dc(struct net_device *dev, int on_not_off) | |
1071 | { | |
1072 | struct net_local *lp = netdev_priv(dev); | |
1073 | unsigned int selfcontrol; | |
1074 | int timenow = jiffies; | |
1075 | /* control the DC to DC convertor in the SelfControl register. | |
1076 | Note: This is hooked up to a general purpose pin, might not | |
1077 | always be a DC to DC convertor. */ | |
1078 | ||
1079 | selfcontrol = HCB1_ENBL; /* Enable the HCB1 bit as an output */ | |
1080 | if (((lp->adapter_cnf & A_CNF_DC_DC_POLARITY) != 0) ^ on_not_off) | |
1081 | selfcontrol |= HCB1; | |
1082 | else | |
1083 | selfcontrol &= ~HCB1; | |
1084 | writereg(dev, PP_SelfCTL, selfcontrol); | |
1085 | ||
1086 | /* Wait for the DC/DC converter to power up - 500ms */ | |
1087 | while (jiffies - timenow < HZ) | |
1088 | ; | |
1089 | } | |
1090 | ||
1091 | #define DETECTED_NONE 0 | |
1092 | #define DETECTED_RJ45H 1 | |
1093 | #define DETECTED_RJ45F 2 | |
1094 | #define DETECTED_AUI 3 | |
1095 | #define DETECTED_BNC 4 | |
1096 | ||
1097 | static int | |
1098 | detect_tp(struct net_device *dev) | |
1099 | { | |
1100 | struct net_local *lp = netdev_priv(dev); | |
1101 | int timenow = jiffies; | |
1102 | int fdx; | |
1103 | ||
1104 | if (net_debug > 1) printk("%s: Attempting TP\n", dev->name); | |
1105 | ||
1106 | /* If connected to another full duplex capable 10-Base-T card the link pulses | |
1107 | seem to be lost when the auto detect bit in the LineCTL is set. | |
1108 | To overcome this the auto detect bit will be cleared whilst testing the | |
1109 | 10-Base-T interface. This would not be necessary for the sparrow chip but | |
1110 | is simpler to do it anyway. */ | |
1111 | writereg(dev, PP_LineCTL, lp->linectl &~ AUI_ONLY); | |
1112 | control_dc_dc(dev, 0); | |
1113 | ||
1114 | /* Delay for the hardware to work out if the TP cable is present - 150ms */ | |
1115 | for (timenow = jiffies; jiffies - timenow < 15; ) | |
1116 | ; | |
1117 | if ((readreg(dev, PP_LineST) & LINK_OK) == 0) | |
1118 | return DETECTED_NONE; | |
1119 | ||
1120 | if (lp->chip_type == CS8900) { | |
1121 | switch (lp->force & 0xf0) { | |
1122 | #if 0 | |
1123 | case FORCE_AUTO: | |
1124 | printk("%s: cs8900 doesn't autonegotiate\n",dev->name); | |
1125 | return DETECTED_NONE; | |
1126 | #endif | |
1127 | /* CS8900 doesn't support AUTO, change to HALF*/ | |
1128 | case FORCE_AUTO: | |
1129 | lp->force &= ~FORCE_AUTO; | |
1130 | lp->force |= FORCE_HALF; | |
1131 | break; | |
1132 | case FORCE_HALF: | |
1133 | break; | |
1134 | case FORCE_FULL: | |
1135 | writereg(dev, PP_TestCTL, readreg(dev, PP_TestCTL) | FDX_8900); | |
1136 | break; | |
1137 | } | |
1138 | fdx = readreg(dev, PP_TestCTL) & FDX_8900; | |
1139 | } else { | |
1140 | switch (lp->force & 0xf0) { | |
1141 | case FORCE_AUTO: | |
1142 | lp->auto_neg_cnf = AUTO_NEG_ENABLE; | |
1143 | break; | |
1144 | case FORCE_HALF: | |
1145 | lp->auto_neg_cnf = 0; | |
1146 | break; | |
1147 | case FORCE_FULL: | |
1148 | lp->auto_neg_cnf = RE_NEG_NOW | ALLOW_FDX; | |
1149 | break; | |
1150 | } | |
1151 | ||
1152 | writereg(dev, PP_AutoNegCTL, lp->auto_neg_cnf & AUTO_NEG_MASK); | |
1153 | ||
1154 | if ((lp->auto_neg_cnf & AUTO_NEG_BITS) == AUTO_NEG_ENABLE) { | |
1155 | printk(KERN_INFO "%s: negotiating duplex...\n",dev->name); | |
1156 | while (readreg(dev, PP_AutoNegST) & AUTO_NEG_BUSY) { | |
1157 | if (jiffies - timenow > 4000) { | |
1158 | printk(KERN_ERR "**** Full / half duplex auto-negotiation timed out ****\n"); | |
1159 | break; | |
1160 | } | |
1161 | } | |
1162 | } | |
1163 | fdx = readreg(dev, PP_AutoNegST) & FDX_ACTIVE; | |
1164 | } | |
1165 | if (fdx) | |
1166 | return DETECTED_RJ45F; | |
1167 | else | |
1168 | return DETECTED_RJ45H; | |
1169 | } | |
1170 | ||
1171 | /* send a test packet - return true if carrier bits are ok */ | |
1172 | static int | |
1173 | send_test_pkt(struct net_device *dev) | |
1174 | { | |
1175 | char test_packet[] = { 0,0,0,0,0,0, 0,0,0,0,0,0, | |
1176 | 0, 46, /* A 46 in network order */ | |
1177 | 0, 0, /* DSAP=0 & SSAP=0 fields */ | |
1178 | 0xf3, 0 /* Control (Test Req + P bit set) */ }; | |
1179 | long timenow = jiffies; | |
1180 | ||
1181 | writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_TX_ON); | |
1182 | ||
1183 | memcpy(test_packet, dev->dev_addr, ETH_ALEN); | |
1184 | memcpy(test_packet+ETH_ALEN, dev->dev_addr, ETH_ALEN); | |
1185 | ||
974dffc2 LB |
1186 | writeword(dev->base_addr, TX_CMD_PORT, TX_AFTER_ALL); |
1187 | writeword(dev->base_addr, TX_LEN_PORT, ETH_ZLEN); | |
1da177e4 LT |
1188 | |
1189 | /* Test to see if the chip has allocated memory for the packet */ | |
1190 | while (jiffies - timenow < 5) | |
1191 | if (readreg(dev, PP_BusST) & READY_FOR_TX_NOW) | |
1192 | break; | |
1193 | if (jiffies - timenow >= 5) | |
1194 | return 0; /* this shouldn't happen */ | |
1195 | ||
1196 | /* Write the contents of the packet */ | |
084f746a | 1197 | writewords(dev->base_addr, TX_FRAME_PORT,test_packet,(ETH_ZLEN+1) >>1); |
1da177e4 LT |
1198 | |
1199 | if (net_debug > 1) printk("Sending test packet "); | |
1200 | /* wait a couple of jiffies for packet to be received */ | |
1201 | for (timenow = jiffies; jiffies - timenow < 3; ) | |
1202 | ; | |
1203 | if ((readreg(dev, PP_TxEvent) & TX_SEND_OK_BITS) == TX_OK) { | |
1204 | if (net_debug > 1) printk("succeeded\n"); | |
1205 | return 1; | |
1206 | } | |
1207 | if (net_debug > 1) printk("failed\n"); | |
1208 | return 0; | |
1209 | } | |
1210 | ||
1211 | ||
1212 | static int | |
1213 | detect_aui(struct net_device *dev) | |
1214 | { | |
1215 | struct net_local *lp = netdev_priv(dev); | |
1216 | ||
1217 | if (net_debug > 1) printk("%s: Attempting AUI\n", dev->name); | |
1218 | control_dc_dc(dev, 0); | |
1219 | ||
1220 | writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY); | |
1221 | ||
1222 | if (send_test_pkt(dev)) | |
1223 | return DETECTED_AUI; | |
1224 | else | |
1225 | return DETECTED_NONE; | |
1226 | } | |
1227 | ||
1228 | static int | |
1229 | detect_bnc(struct net_device *dev) | |
1230 | { | |
1231 | struct net_local *lp = netdev_priv(dev); | |
1232 | ||
1233 | if (net_debug > 1) printk("%s: Attempting BNC\n", dev->name); | |
1234 | control_dc_dc(dev, 1); | |
1235 | ||
1236 | writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY); | |
1237 | ||
1238 | if (send_test_pkt(dev)) | |
1239 | return DETECTED_BNC; | |
1240 | else | |
1241 | return DETECTED_NONE; | |
1242 | } | |
1243 | ||
1244 | \f | |
1245 | static void | |
1246 | write_irq(struct net_device *dev, int chip_type, int irq) | |
1247 | { | |
1248 | int i; | |
1249 | ||
1250 | if (chip_type == CS8900) { | |
1251 | /* Search the mapping table for the corresponding IRQ pin. */ | |
1252 | for (i = 0; i != sizeof(cs8900_irq_map)/sizeof(cs8900_irq_map[0]); i++) | |
1253 | if (cs8900_irq_map[i] == irq) | |
1254 | break; | |
1255 | /* Not found */ | |
1256 | if (i == sizeof(cs8900_irq_map)/sizeof(cs8900_irq_map[0])) | |
1257 | i = 3; | |
1258 | writereg(dev, PP_CS8900_ISAINT, i); | |
1259 | } else { | |
1260 | writereg(dev, PP_CS8920_ISAINT, irq); | |
1261 | } | |
1262 | } | |
1263 | ||
1264 | /* Open/initialize the board. This is called (in the current kernel) | |
1265 | sometime after booting when the 'ifconfig' program is run. | |
1266 | ||
1267 | This routine should set everything up anew at each open, even | |
1268 | registers that "should" only need to be set once at boot, so that | |
1269 | there is non-reboot way to recover if something goes wrong. | |
1270 | */ | |
1271 | ||
1272 | /* AKPM: do we need to do any locking here? */ | |
1273 | ||
1274 | static int | |
1275 | net_open(struct net_device *dev) | |
1276 | { | |
1277 | struct net_local *lp = netdev_priv(dev); | |
1278 | int result = 0; | |
1279 | int i; | |
1280 | int ret; | |
1281 | ||
277cb103 | 1282 | #if !defined(CONFIG_SH_HICOSH4) && !defined(CONFIG_ARCH_PNX010X) /* uses irq#1, so this won't work */ |
1da177e4 LT |
1283 | if (dev->irq < 2) { |
1284 | /* Allow interrupts to be generated by the chip */ | |
1285 | /* Cirrus' release had this: */ | |
1286 | #if 0 | |
1287 | writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ ); | |
1288 | #endif | |
1289 | /* And 2.3.47 had this: */ | |
1290 | writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON); | |
1291 | ||
1292 | for (i = 2; i < CS8920_NO_INTS; i++) { | |
1293 | if ((1 << i) & lp->irq_map) { | |
1294 | if (request_irq(i, net_interrupt, 0, dev->name, dev) == 0) { | |
1295 | dev->irq = i; | |
1296 | write_irq(dev, lp->chip_type, i); | |
1297 | /* writereg(dev, PP_BufCFG, GENERATE_SW_INTERRUPT); */ | |
1298 | break; | |
1299 | } | |
1300 | } | |
1301 | } | |
1302 | ||
1303 | if (i >= CS8920_NO_INTS) { | |
1304 | writereg(dev, PP_BusCTL, 0); /* disable interrupts. */ | |
1305 | printk(KERN_ERR "cs89x0: can't get an interrupt\n"); | |
1306 | ret = -EAGAIN; | |
1307 | goto bad_out; | |
1308 | } | |
1309 | } | |
1310 | else | |
1311 | #endif | |
1312 | { | |
9c878967 | 1313 | #if !defined(CONFIG_MACH_IXDP2351) && !defined(CONFIG_ARCH_IXDP2X01) && !defined(CONFIG_ARCH_PNX010X) |
1da177e4 LT |
1314 | if (((1 << dev->irq) & lp->irq_map) == 0) { |
1315 | printk(KERN_ERR "%s: IRQ %d is not in our map of allowable IRQs, which is %x\n", | |
1316 | dev->name, dev->irq, lp->irq_map); | |
1317 | ret = -EAGAIN; | |
1318 | goto bad_out; | |
1319 | } | |
1320 | #endif | |
1321 | /* FIXME: Cirrus' release had this: */ | |
1322 | writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ ); | |
1323 | /* And 2.3.47 had this: */ | |
1324 | #if 0 | |
1325 | writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON); | |
1326 | #endif | |
1327 | write_irq(dev, lp->chip_type, dev->irq); | |
1328 | ret = request_irq(dev->irq, &net_interrupt, 0, dev->name, dev); | |
1329 | if (ret) { | |
1330 | if (net_debug) | |
1331 | printk(KERN_DEBUG "cs89x0: request_irq(%d) failed\n", dev->irq); | |
1332 | goto bad_out; | |
1333 | } | |
1334 | } | |
1335 | ||
1336 | #if ALLOW_DMA | |
1337 | if (lp->use_dma) { | |
1338 | if (lp->isa_config & ANY_ISA_DMA) { | |
1339 | unsigned long flags; | |
1340 | lp->dma_buff = (unsigned char *)__get_dma_pages(GFP_KERNEL, | |
1341 | get_order(lp->dmasize * 1024)); | |
1342 | ||
1343 | if (!lp->dma_buff) { | |
1344 | printk(KERN_ERR "%s: cannot get %dK memory for DMA\n", dev->name, lp->dmasize); | |
1345 | goto release_irq; | |
1346 | } | |
1347 | if (net_debug > 1) { | |
1348 | printk( "%s: dma %lx %lx\n", | |
1349 | dev->name, | |
1350 | (unsigned long)lp->dma_buff, | |
1351 | (unsigned long)isa_virt_to_bus(lp->dma_buff)); | |
1352 | } | |
1353 | if ((unsigned long) lp->dma_buff >= MAX_DMA_ADDRESS || | |
1354 | !dma_page_eq(lp->dma_buff, lp->dma_buff+lp->dmasize*1024-1)) { | |
1355 | printk(KERN_ERR "%s: not usable as DMA buffer\n", dev->name); | |
1356 | goto release_irq; | |
1357 | } | |
1358 | memset(lp->dma_buff, 0, lp->dmasize * 1024); /* Why? */ | |
1359 | if (request_dma(dev->dma, dev->name)) { | |
1360 | printk(KERN_ERR "%s: cannot get dma channel %d\n", dev->name, dev->dma); | |
1361 | goto release_irq; | |
1362 | } | |
1363 | write_dma(dev, lp->chip_type, dev->dma); | |
1364 | lp->rx_dma_ptr = lp->dma_buff; | |
1365 | lp->end_dma_buff = lp->dma_buff + lp->dmasize*1024; | |
1366 | spin_lock_irqsave(&lp->lock, flags); | |
1367 | disable_dma(dev->dma); | |
1368 | clear_dma_ff(dev->dma); | |
1369 | set_dma_mode(dev->dma, 0x14); /* auto_init as well */ | |
1370 | set_dma_addr(dev->dma, isa_virt_to_bus(lp->dma_buff)); | |
1371 | set_dma_count(dev->dma, lp->dmasize*1024); | |
1372 | enable_dma(dev->dma); | |
1373 | spin_unlock_irqrestore(&lp->lock, flags); | |
1374 | } | |
1375 | } | |
1376 | #endif /* ALLOW_DMA */ | |
1377 | ||
1378 | /* set the Ethernet address */ | |
1379 | for (i=0; i < ETH_ALEN/2; i++) | |
1380 | writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8)); | |
1381 | ||
1382 | /* while we're testing the interface, leave interrupts disabled */ | |
1383 | writereg(dev, PP_BusCTL, MEMORY_ON); | |
1384 | ||
1385 | /* Set the LineCTL quintuplet based on adapter configuration read from EEPROM */ | |
1386 | if ((lp->adapter_cnf & A_CNF_EXTND_10B_2) && (lp->adapter_cnf & A_CNF_LOW_RX_SQUELCH)) | |
1387 | lp->linectl = LOW_RX_SQUELCH; | |
1388 | else | |
1389 | lp->linectl = 0; | |
1390 | ||
1391 | /* check to make sure that they have the "right" hardware available */ | |
1392 | switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) { | |
1393 | case A_CNF_MEDIA_10B_T: result = lp->adapter_cnf & A_CNF_10B_T; break; | |
1394 | case A_CNF_MEDIA_AUI: result = lp->adapter_cnf & A_CNF_AUI; break; | |
1395 | case A_CNF_MEDIA_10B_2: result = lp->adapter_cnf & A_CNF_10B_2; break; | |
1396 | default: result = lp->adapter_cnf & (A_CNF_10B_T | A_CNF_AUI | A_CNF_10B_2); | |
1397 | } | |
277cb103 | 1398 | #ifdef CONFIG_ARCH_PNX010X |
0dd3c781 | 1399 | result = A_CNF_10B_T; |
1400 | #endif | |
1da177e4 LT |
1401 | if (!result) { |
1402 | printk(KERN_ERR "%s: EEPROM is configured for unavailable media\n", dev->name); | |
1403 | release_irq: | |
1404 | #if ALLOW_DMA | |
1405 | release_dma_buff(lp); | |
1406 | #endif | |
1407 | writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) & ~(SERIAL_TX_ON | SERIAL_RX_ON)); | |
1408 | free_irq(dev->irq, dev); | |
1409 | ret = -EAGAIN; | |
1410 | goto bad_out; | |
1411 | } | |
1412 | ||
1413 | /* set the hardware to the configured choice */ | |
1414 | switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) { | |
1415 | case A_CNF_MEDIA_10B_T: | |
1416 | result = detect_tp(dev); | |
1417 | if (result==DETECTED_NONE) { | |
1418 | printk(KERN_WARNING "%s: 10Base-T (RJ-45) has no cable\n", dev->name); | |
1419 | if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */ | |
1420 | result = DETECTED_RJ45H; /* Yes! I don't care if I see a link pulse */ | |
1421 | } | |
1422 | break; | |
1423 | case A_CNF_MEDIA_AUI: | |
1424 | result = detect_aui(dev); | |
1425 | if (result==DETECTED_NONE) { | |
1426 | printk(KERN_WARNING "%s: 10Base-5 (AUI) has no cable\n", dev->name); | |
1427 | if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */ | |
1428 | result = DETECTED_AUI; /* Yes! I don't care if I see a carrrier */ | |
1429 | } | |
1430 | break; | |
1431 | case A_CNF_MEDIA_10B_2: | |
1432 | result = detect_bnc(dev); | |
1433 | if (result==DETECTED_NONE) { | |
1434 | printk(KERN_WARNING "%s: 10Base-2 (BNC) has no cable\n", dev->name); | |
1435 | if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */ | |
1436 | result = DETECTED_BNC; /* Yes! I don't care if I can xmit a packet */ | |
1437 | } | |
1438 | break; | |
1439 | case A_CNF_MEDIA_AUTO: | |
1440 | writereg(dev, PP_LineCTL, lp->linectl | AUTO_AUI_10BASET); | |
1441 | if (lp->adapter_cnf & A_CNF_10B_T) | |
1442 | if ((result = detect_tp(dev)) != DETECTED_NONE) | |
1443 | break; | |
1444 | if (lp->adapter_cnf & A_CNF_AUI) | |
1445 | if ((result = detect_aui(dev)) != DETECTED_NONE) | |
1446 | break; | |
1447 | if (lp->adapter_cnf & A_CNF_10B_2) | |
1448 | if ((result = detect_bnc(dev)) != DETECTED_NONE) | |
1449 | break; | |
1450 | printk(KERN_ERR "%s: no media detected\n", dev->name); | |
1451 | goto release_irq; | |
1452 | } | |
1453 | switch(result) { | |
1454 | case DETECTED_NONE: | |
1455 | printk(KERN_ERR "%s: no network cable attached to configured media\n", dev->name); | |
1456 | goto release_irq; | |
1457 | case DETECTED_RJ45H: | |
1458 | printk(KERN_INFO "%s: using half-duplex 10Base-T (RJ-45)\n", dev->name); | |
1459 | break; | |
1460 | case DETECTED_RJ45F: | |
1461 | printk(KERN_INFO "%s: using full-duplex 10Base-T (RJ-45)\n", dev->name); | |
1462 | break; | |
1463 | case DETECTED_AUI: | |
1464 | printk(KERN_INFO "%s: using 10Base-5 (AUI)\n", dev->name); | |
1465 | break; | |
1466 | case DETECTED_BNC: | |
1467 | printk(KERN_INFO "%s: using 10Base-2 (BNC)\n", dev->name); | |
1468 | break; | |
1469 | } | |
1470 | ||
1471 | /* Turn on both receive and transmit operations */ | |
1472 | writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_RX_ON | SERIAL_TX_ON); | |
1473 | ||
1474 | /* Receive only error free packets addressed to this card */ | |
1475 | lp->rx_mode = 0; | |
1476 | writereg(dev, PP_RxCTL, DEF_RX_ACCEPT); | |
1477 | ||
1478 | lp->curr_rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL; | |
1479 | ||
1480 | if (lp->isa_config & STREAM_TRANSFER) | |
1481 | lp->curr_rx_cfg |= RX_STREAM_ENBL; | |
1482 | #if ALLOW_DMA | |
1483 | set_dma_cfg(dev); | |
1484 | #endif | |
1485 | writereg(dev, PP_RxCFG, lp->curr_rx_cfg); | |
1486 | ||
1487 | writereg(dev, PP_TxCFG, TX_LOST_CRS_ENBL | TX_SQE_ERROR_ENBL | TX_OK_ENBL | | |
1488 | TX_LATE_COL_ENBL | TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL); | |
1489 | ||
1490 | writereg(dev, PP_BufCFG, READY_FOR_TX_ENBL | RX_MISS_COUNT_OVRFLOW_ENBL | | |
1491 | #if ALLOW_DMA | |
1492 | dma_bufcfg(dev) | | |
1493 | #endif | |
1494 | TX_COL_COUNT_OVRFLOW_ENBL | TX_UNDERRUN_ENBL); | |
1495 | ||
1496 | /* now that we've got our act together, enable everything */ | |
1497 | writereg(dev, PP_BusCTL, ENABLE_IRQ | |
1498 | | (dev->mem_start?MEMORY_ON : 0) /* turn memory on */ | |
1499 | #if ALLOW_DMA | |
1500 | | dma_busctl(dev) | |
1501 | #endif | |
1502 | ); | |
1503 | netif_start_queue(dev); | |
1504 | if (net_debug > 1) | |
1505 | printk("cs89x0: net_open() succeeded\n"); | |
1506 | return 0; | |
1507 | bad_out: | |
1508 | return ret; | |
1509 | } | |
1510 | ||
1511 | static void net_timeout(struct net_device *dev) | |
1512 | { | |
1513 | /* If we get here, some higher level has decided we are broken. | |
1514 | There should really be a "kick me" function call instead. */ | |
1515 | if (net_debug > 0) printk("%s: transmit timed out, %s?\n", dev->name, | |
1516 | tx_done(dev) ? "IRQ conflict ?" : "network cable problem"); | |
1517 | /* Try to restart the adaptor. */ | |
1518 | netif_wake_queue(dev); | |
1519 | } | |
1520 | ||
1521 | static int net_send_packet(struct sk_buff *skb, struct net_device *dev) | |
1522 | { | |
1523 | struct net_local *lp = netdev_priv(dev); | |
1524 | ||
1525 | if (net_debug > 3) { | |
1526 | printk("%s: sent %d byte packet of type %x\n", | |
1527 | dev->name, skb->len, | |
1528 | (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]); | |
1529 | } | |
1530 | ||
1531 | /* keep the upload from being interrupted, since we | |
1532 | ask the chip to start transmitting before the | |
1533 | whole packet has been completely uploaded. */ | |
1534 | ||
1535 | spin_lock_irq(&lp->lock); | |
1536 | netif_stop_queue(dev); | |
1537 | ||
1538 | /* initiate a transmit sequence */ | |
974dffc2 LB |
1539 | writeword(dev->base_addr, TX_CMD_PORT, lp->send_cmd); |
1540 | writeword(dev->base_addr, TX_LEN_PORT, skb->len); | |
1da177e4 LT |
1541 | |
1542 | /* Test to see if the chip has allocated memory for the packet */ | |
1543 | if ((readreg(dev, PP_BusST) & READY_FOR_TX_NOW) == 0) { | |
1544 | /* | |
1545 | * Gasp! It hasn't. But that shouldn't happen since | |
1546 | * we're waiting for TxOk, so return 1 and requeue this packet. | |
1547 | */ | |
1548 | ||
1549 | spin_unlock_irq(&lp->lock); | |
1550 | if (net_debug) printk("cs89x0: Tx buffer not free!\n"); | |
1551 | return 1; | |
1552 | } | |
1553 | /* Write the contents of the packet */ | |
084f746a | 1554 | writewords(dev->base_addr, TX_FRAME_PORT,skb->data,(skb->len+1) >>1); |
1da177e4 | 1555 | spin_unlock_irq(&lp->lock); |
e1699f50 | 1556 | lp->stats.tx_bytes += skb->len; |
1da177e4 LT |
1557 | dev->trans_start = jiffies; |
1558 | dev_kfree_skb (skb); | |
1559 | ||
1560 | /* | |
1561 | * We DO NOT call netif_wake_queue() here. | |
1562 | * We also DO NOT call netif_start_queue(). | |
1563 | * | |
1564 | * Either of these would cause another bottom half run through | |
1565 | * net_send_packet() before this packet has fully gone out. That causes | |
1566 | * us to hit the "Gasp!" above and the send is rescheduled. it runs like | |
1567 | * a dog. We just return and wait for the Tx completion interrupt handler | |
1568 | * to restart the netdevice layer | |
1569 | */ | |
1570 | ||
1571 | return 0; | |
1572 | } | |
1573 | \f | |
1574 | /* The typical workload of the driver: | |
1575 | Handle the network interface interrupts. */ | |
1576 | ||
1577 | static irqreturn_t net_interrupt(int irq, void *dev_id, struct pt_regs * regs) | |
1578 | { | |
1579 | struct net_device *dev = dev_id; | |
1580 | struct net_local *lp; | |
1581 | int ioaddr, status; | |
1582 | int handled = 0; | |
1583 | ||
1584 | ioaddr = dev->base_addr; | |
1585 | lp = netdev_priv(dev); | |
1586 | ||
1587 | /* we MUST read all the events out of the ISQ, otherwise we'll never | |
1588 | get interrupted again. As a consequence, we can't have any limit | |
1589 | on the number of times we loop in the interrupt handler. The | |
1590 | hardware guarantees that eventually we'll run out of events. Of | |
1591 | course, if you're on a slow machine, and packets are arriving | |
1592 | faster than you can read them off, you're screwed. Hasta la | |
1593 | vista, baby! */ | |
974dffc2 | 1594 | while ((status = readword(dev->base_addr, ISQ_PORT))) { |
1da177e4 LT |
1595 | if (net_debug > 4)printk("%s: event=%04x\n", dev->name, status); |
1596 | handled = 1; | |
1597 | switch(status & ISQ_EVENT_MASK) { | |
1598 | case ISQ_RECEIVER_EVENT: | |
1599 | /* Got a packet(s). */ | |
1600 | net_rx(dev); | |
1601 | break; | |
1602 | case ISQ_TRANSMITTER_EVENT: | |
1603 | lp->stats.tx_packets++; | |
1604 | netif_wake_queue(dev); /* Inform upper layers. */ | |
1605 | if ((status & ( TX_OK | | |
1606 | TX_LOST_CRS | | |
1607 | TX_SQE_ERROR | | |
1608 | TX_LATE_COL | | |
1609 | TX_16_COL)) != TX_OK) { | |
1610 | if ((status & TX_OK) == 0) lp->stats.tx_errors++; | |
1611 | if (status & TX_LOST_CRS) lp->stats.tx_carrier_errors++; | |
1612 | if (status & TX_SQE_ERROR) lp->stats.tx_heartbeat_errors++; | |
1613 | if (status & TX_LATE_COL) lp->stats.tx_window_errors++; | |
1614 | if (status & TX_16_COL) lp->stats.tx_aborted_errors++; | |
1615 | } | |
1616 | break; | |
1617 | case ISQ_BUFFER_EVENT: | |
1618 | if (status & READY_FOR_TX) { | |
1619 | /* we tried to transmit a packet earlier, | |
1620 | but inexplicably ran out of buffers. | |
1621 | That shouldn't happen since we only ever | |
1622 | load one packet. Shrug. Do the right | |
1623 | thing anyway. */ | |
1624 | netif_wake_queue(dev); /* Inform upper layers. */ | |
1625 | } | |
1626 | if (status & TX_UNDERRUN) { | |
1627 | if (net_debug > 0) printk("%s: transmit underrun\n", dev->name); | |
1628 | lp->send_underrun++; | |
1629 | if (lp->send_underrun == 3) lp->send_cmd = TX_AFTER_381; | |
1630 | else if (lp->send_underrun == 6) lp->send_cmd = TX_AFTER_ALL; | |
1631 | /* transmit cycle is done, although | |
1632 | frame wasn't transmitted - this | |
1633 | avoids having to wait for the upper | |
1634 | layers to timeout on us, in the | |
1635 | event of a tx underrun */ | |
1636 | netif_wake_queue(dev); /* Inform upper layers. */ | |
1637 | } | |
1638 | #if ALLOW_DMA | |
1639 | if (lp->use_dma && (status & RX_DMA)) { | |
1640 | int count = readreg(dev, PP_DmaFrameCnt); | |
1641 | while(count) { | |
1642 | if (net_debug > 5) | |
1643 | printk("%s: receiving %d DMA frames\n", dev->name, count); | |
1644 | if (net_debug > 2 && count >1) | |
1645 | printk("%s: receiving %d DMA frames\n", dev->name, count); | |
1646 | dma_rx(dev); | |
1647 | if (--count == 0) | |
1648 | count = readreg(dev, PP_DmaFrameCnt); | |
1649 | if (net_debug > 2 && count > 0) | |
1650 | printk("%s: continuing with %d DMA frames\n", dev->name, count); | |
1651 | } | |
1652 | } | |
1653 | #endif | |
1654 | break; | |
1655 | case ISQ_RX_MISS_EVENT: | |
1656 | lp->stats.rx_missed_errors += (status >>6); | |
1657 | break; | |
1658 | case ISQ_TX_COL_EVENT: | |
1659 | lp->stats.collisions += (status >>6); | |
1660 | break; | |
1661 | } | |
1662 | } | |
1663 | return IRQ_RETVAL(handled); | |
1664 | } | |
1665 | ||
1666 | static void | |
1667 | count_rx_errors(int status, struct net_local *lp) | |
1668 | { | |
1669 | lp->stats.rx_errors++; | |
1670 | if (status & RX_RUNT) lp->stats.rx_length_errors++; | |
1671 | if (status & RX_EXTRA_DATA) lp->stats.rx_length_errors++; | |
1672 | if (status & RX_CRC_ERROR) if (!(status & (RX_EXTRA_DATA|RX_RUNT))) | |
1673 | /* per str 172 */ | |
1674 | lp->stats.rx_crc_errors++; | |
1675 | if (status & RX_DRIBBLE) lp->stats.rx_frame_errors++; | |
1676 | return; | |
1677 | } | |
1678 | ||
1679 | /* We have a good packet(s), get it/them out of the buffers. */ | |
1680 | static void | |
1681 | net_rx(struct net_device *dev) | |
1682 | { | |
1683 | struct net_local *lp = netdev_priv(dev); | |
1684 | struct sk_buff *skb; | |
1685 | int status, length; | |
1686 | ||
1687 | int ioaddr = dev->base_addr; | |
fc8c7d79 LB |
1688 | status = readword(ioaddr, RX_FRAME_PORT); |
1689 | length = readword(ioaddr, RX_FRAME_PORT); | |
1da177e4 LT |
1690 | |
1691 | if ((status & RX_OK) == 0) { | |
1692 | count_rx_errors(status, lp); | |
1693 | return; | |
1694 | } | |
1695 | ||
1696 | /* Malloc up new buffer. */ | |
1697 | skb = dev_alloc_skb(length + 2); | |
1698 | if (skb == NULL) { | |
1699 | #if 0 /* Again, this seems a cruel thing to do */ | |
1700 | printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n", dev->name); | |
1701 | #endif | |
1702 | lp->stats.rx_dropped++; | |
1703 | return; | |
1704 | } | |
1705 | skb_reserve(skb, 2); /* longword align L3 header */ | |
1706 | skb->dev = dev; | |
1707 | ||
084f746a | 1708 | readwords(ioaddr, RX_FRAME_PORT, skb_put(skb, length), length >> 1); |
1da177e4 | 1709 | if (length & 1) |
fc8c7d79 | 1710 | skb->data[length-1] = readword(ioaddr, RX_FRAME_PORT); |
1da177e4 LT |
1711 | |
1712 | if (net_debug > 3) { | |
1713 | printk( "%s: received %d byte packet of type %x\n", | |
1714 | dev->name, length, | |
1715 | (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]); | |
1716 | } | |
1717 | ||
1718 | skb->protocol=eth_type_trans(skb,dev); | |
1719 | netif_rx(skb); | |
1720 | dev->last_rx = jiffies; | |
1721 | lp->stats.rx_packets++; | |
1722 | lp->stats.rx_bytes += length; | |
1723 | } | |
1724 | ||
1725 | #if ALLOW_DMA | |
1726 | static void release_dma_buff(struct net_local *lp) | |
1727 | { | |
1728 | if (lp->dma_buff) { | |
1729 | free_pages((unsigned long)(lp->dma_buff), get_order(lp->dmasize * 1024)); | |
1730 | lp->dma_buff = NULL; | |
1731 | } | |
1732 | } | |
1733 | #endif | |
1734 | ||
1735 | /* The inverse routine to net_open(). */ | |
1736 | static int | |
1737 | net_close(struct net_device *dev) | |
1738 | { | |
1739 | #if ALLOW_DMA | |
1740 | struct net_local *lp = netdev_priv(dev); | |
1741 | #endif | |
1742 | ||
1743 | netif_stop_queue(dev); | |
1744 | ||
1745 | writereg(dev, PP_RxCFG, 0); | |
1746 | writereg(dev, PP_TxCFG, 0); | |
1747 | writereg(dev, PP_BufCFG, 0); | |
1748 | writereg(dev, PP_BusCTL, 0); | |
1749 | ||
1750 | free_irq(dev->irq, dev); | |
1751 | ||
1752 | #if ALLOW_DMA | |
1753 | if (lp->use_dma && lp->dma) { | |
1754 | free_dma(dev->dma); | |
1755 | release_dma_buff(lp); | |
1756 | } | |
1757 | #endif | |
1758 | ||
1759 | /* Update the statistics here. */ | |
1760 | return 0; | |
1761 | } | |
1762 | ||
1763 | /* Get the current statistics. This may be called with the card open or | |
1764 | closed. */ | |
1765 | static struct net_device_stats * | |
1766 | net_get_stats(struct net_device *dev) | |
1767 | { | |
1768 | struct net_local *lp = netdev_priv(dev); | |
1769 | unsigned long flags; | |
1770 | ||
1771 | spin_lock_irqsave(&lp->lock, flags); | |
1772 | /* Update the statistics from the device registers. */ | |
1773 | lp->stats.rx_missed_errors += (readreg(dev, PP_RxMiss) >> 6); | |
1774 | lp->stats.collisions += (readreg(dev, PP_TxCol) >> 6); | |
1775 | spin_unlock_irqrestore(&lp->lock, flags); | |
1776 | ||
1777 | return &lp->stats; | |
1778 | } | |
1779 | ||
1780 | static void set_multicast_list(struct net_device *dev) | |
1781 | { | |
1782 | struct net_local *lp = netdev_priv(dev); | |
1783 | unsigned long flags; | |
1784 | ||
1785 | spin_lock_irqsave(&lp->lock, flags); | |
1786 | if(dev->flags&IFF_PROMISC) | |
1787 | { | |
1788 | lp->rx_mode = RX_ALL_ACCEPT; | |
1789 | } | |
1790 | else if((dev->flags&IFF_ALLMULTI)||dev->mc_list) | |
1791 | { | |
1792 | /* The multicast-accept list is initialized to accept-all, and we | |
1793 | rely on higher-level filtering for now. */ | |
1794 | lp->rx_mode = RX_MULTCAST_ACCEPT; | |
1795 | } | |
1796 | else | |
1797 | lp->rx_mode = 0; | |
1798 | ||
1799 | writereg(dev, PP_RxCTL, DEF_RX_ACCEPT | lp->rx_mode); | |
1800 | ||
1801 | /* in promiscuous mode, we accept errored packets, so we have to enable interrupts on them also */ | |
1802 | writereg(dev, PP_RxCFG, lp->curr_rx_cfg | | |
1803 | (lp->rx_mode == RX_ALL_ACCEPT? (RX_CRC_ERROR_ENBL|RX_RUNT_ENBL|RX_EXTRA_DATA_ENBL) : 0)); | |
1804 | spin_unlock_irqrestore(&lp->lock, flags); | |
1805 | } | |
1806 | ||
1807 | ||
1808 | static int set_mac_address(struct net_device *dev, void *p) | |
1809 | { | |
1810 | int i; | |
1811 | struct sockaddr *addr = p; | |
1812 | ||
1813 | ||
1814 | if (netif_running(dev)) | |
1815 | return -EBUSY; | |
1816 | ||
1817 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
1818 | ||
1819 | if (net_debug) { | |
1820 | printk("%s: Setting MAC address to ", dev->name); | |
1821 | for (i = 0; i < dev->addr_len; i++) | |
1822 | printk(" %2.2x", dev->dev_addr[i]); | |
1823 | printk(".\n"); | |
1824 | } | |
1825 | /* set the Ethernet address */ | |
1826 | for (i=0; i < ETH_ALEN/2; i++) | |
1827 | writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8)); | |
1828 | ||
1829 | return 0; | |
1830 | } | |
1831 | ||
1832 | #ifdef MODULE | |
1833 | ||
1834 | static struct net_device *dev_cs89x0; | |
1835 | ||
1836 | /* | |
1837 | * Support the 'debug' module parm even if we're compiled for non-debug to | |
1838 | * avoid breaking someone's startup scripts | |
1839 | */ | |
1840 | ||
1841 | static int io; | |
1842 | static int irq; | |
1843 | static int debug; | |
1844 | static char media[8]; | |
1845 | static int duplex=-1; | |
1846 | ||
1847 | static int use_dma; /* These generate unused var warnings if ALLOW_DMA = 0 */ | |
1848 | static int dma; | |
1849 | static int dmasize=16; /* or 64 */ | |
1850 | ||
1851 | module_param(io, int, 0); | |
1852 | module_param(irq, int, 0); | |
1853 | module_param(debug, int, 0); | |
1854 | module_param_string(media, media, sizeof(media), 0); | |
1855 | module_param(duplex, int, 0); | |
1856 | module_param(dma , int, 0); | |
1857 | module_param(dmasize , int, 0); | |
1858 | module_param(use_dma , int, 0); | |
1859 | MODULE_PARM_DESC(io, "cs89x0 I/O base address"); | |
1860 | MODULE_PARM_DESC(irq, "cs89x0 IRQ number"); | |
1861 | #if DEBUGGING | |
1862 | MODULE_PARM_DESC(debug, "cs89x0 debug level (0-6)"); | |
1863 | #else | |
1864 | MODULE_PARM_DESC(debug, "(ignored)"); | |
1865 | #endif | |
1866 | MODULE_PARM_DESC(media, "Set cs89x0 adapter(s) media type(s) (rj45,bnc,aui)"); | |
1867 | /* No other value than -1 for duplex seems to be currently interpreted */ | |
1868 | MODULE_PARM_DESC(duplex, "(ignored)"); | |
1869 | #if ALLOW_DMA | |
1870 | MODULE_PARM_DESC(dma , "cs89x0 ISA DMA channel; ignored if use_dma=0"); | |
1871 | MODULE_PARM_DESC(dmasize , "cs89x0 DMA size in kB (16,64); ignored if use_dma=0"); | |
1872 | MODULE_PARM_DESC(use_dma , "cs89x0 using DMA (0-1)"); | |
1873 | #else | |
1874 | MODULE_PARM_DESC(dma , "(ignored)"); | |
1875 | MODULE_PARM_DESC(dmasize , "(ignored)"); | |
1876 | MODULE_PARM_DESC(use_dma , "(ignored)"); | |
1877 | #endif | |
1878 | ||
1879 | MODULE_AUTHOR("Mike Cruse, Russwll Nelson <nelson@crynwr.com>, Andrew Morton <andrewm@uow.edu.au>"); | |
1880 | MODULE_LICENSE("GPL"); | |
1881 | ||
1882 | ||
1883 | /* | |
1884 | * media=t - specify media type | |
1885 | or media=2 | |
1886 | or media=aui | |
1887 | or medai=auto | |
1888 | * duplex=0 - specify forced half/full/autonegotiate duplex | |
1889 | * debug=# - debug level | |
1890 | ||
1891 | ||
1892 | * Default Chip Configuration: | |
1893 | * DMA Burst = enabled | |
1894 | * IOCHRDY Enabled = enabled | |
1895 | * UseSA = enabled | |
1896 | * CS8900 defaults to half-duplex if not specified on command-line | |
1897 | * CS8920 defaults to autoneg if not specified on command-line | |
1898 | * Use reset defaults for other config parameters | |
1899 | ||
1900 | * Assumptions: | |
1901 | * media type specified is supported (circuitry is present) | |
1902 | * if memory address is > 1MB, then required mem decode hw is present | |
1903 | * if 10B-2, then agent other than driver will enable DC/DC converter | |
1904 | (hw or software util) | |
1905 | ||
1906 | ||
1907 | */ | |
1908 | ||
1909 | int | |
1910 | init_module(void) | |
1911 | { | |
1912 | struct net_device *dev = alloc_etherdev(sizeof(struct net_local)); | |
1913 | struct net_local *lp; | |
1914 | int ret = 0; | |
1915 | ||
1916 | #if DEBUGGING | |
1917 | net_debug = debug; | |
1918 | #else | |
1919 | debug = 0; | |
1920 | #endif | |
1921 | if (!dev) | |
1922 | return -ENOMEM; | |
1923 | ||
1924 | dev->irq = irq; | |
1925 | dev->base_addr = io; | |
1926 | lp = netdev_priv(dev); | |
1927 | ||
1928 | #if ALLOW_DMA | |
1929 | if (use_dma) { | |
1930 | lp->use_dma = use_dma; | |
1931 | lp->dma = dma; | |
1932 | lp->dmasize = dmasize; | |
1933 | } | |
1934 | #endif | |
1935 | ||
1936 | spin_lock_init(&lp->lock); | |
1937 | ||
1938 | /* boy, they'd better get these right */ | |
1939 | if (!strcmp(media, "rj45")) | |
1940 | lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T; | |
1941 | else if (!strcmp(media, "aui")) | |
1942 | lp->adapter_cnf = A_CNF_MEDIA_AUI | A_CNF_AUI; | |
1943 | else if (!strcmp(media, "bnc")) | |
1944 | lp->adapter_cnf = A_CNF_MEDIA_10B_2 | A_CNF_10B_2; | |
1945 | else | |
1946 | lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T; | |
1947 | ||
1948 | if (duplex==-1) | |
1949 | lp->auto_neg_cnf = AUTO_NEG_ENABLE; | |
1950 | ||
1951 | if (io == 0) { | |
1952 | printk(KERN_ERR "cs89x0.c: Module autoprobing not allowed.\n"); | |
1953 | printk(KERN_ERR "cs89x0.c: Append io=0xNNN\n"); | |
1954 | ret = -EPERM; | |
1955 | goto out; | |
1956 | } else if (io <= 0x1ff) { | |
1957 | ret = -ENXIO; | |
1958 | goto out; | |
1959 | } | |
1960 | ||
1961 | #if ALLOW_DMA | |
1962 | if (use_dma && dmasize != 16 && dmasize != 64) { | |
1963 | printk(KERN_ERR "cs89x0.c: dma size must be either 16K or 64K, not %dK\n", dmasize); | |
1964 | ret = -EPERM; | |
1965 | goto out; | |
1966 | } | |
1967 | #endif | |
1968 | ret = cs89x0_probe1(dev, io, 1); | |
1969 | if (ret) | |
1970 | goto out; | |
1971 | ||
1da177e4 LT |
1972 | dev_cs89x0 = dev; |
1973 | return 0; | |
1974 | out: | |
1975 | free_netdev(dev); | |
1976 | return ret; | |
1977 | } | |
1978 | ||
1979 | void | |
1980 | cleanup_module(void) | |
1981 | { | |
1982 | unregister_netdev(dev_cs89x0); | |
fc8c7d79 | 1983 | writeword(dev_cs89x0->base_addr, ADD_PORT, PP_ChipID); |
1da177e4 LT |
1984 | release_region(dev_cs89x0->base_addr, NETCARD_IO_EXTENT); |
1985 | free_netdev(dev_cs89x0); | |
1986 | } | |
1987 | #endif /* MODULE */ | |
1988 | \f | |
1989 | /* | |
1990 | * Local variables: | |
1991 | * version-control: t | |
1992 | * kept-new-versions: 5 | |
1993 | * c-indent-level: 8 | |
1994 | * tab-width: 8 | |
1995 | * End: | |
1996 | * | |
1997 | */ |