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1da177e4 LT |
1 | /***************************************************************** |
2 | * | |
3 | * Filename: donauboe.c | |
4 | * Version: 2.17 | |
5 | * Description: Driver for the Toshiba OBOE (or type-O or 701) | |
6 | * FIR Chipset, also supports the DONAUOBOE (type-DO | |
7 | * or d01) FIR chipset which as far as I know is | |
8 | * register compatible. | |
9 | * Documentation: http://libxg.free.fr/irda/lib-irda.html | |
10 | * Status: Experimental. | |
11 | * Author: James McKenzie <james@fishsoup.dhs.org> | |
12 | * Created at: Sat May 8 12:35:27 1999 | |
13 | * Modified: Paul Bristow <paul.bristow@technologist.com> | |
14 | * Modified: Mon Nov 11 19:10:05 1999 | |
15 | * Modified: James McKenzie <james@fishsoup.dhs.org> | |
16 | * Modified: Thu Mar 16 12:49:00 2000 (Substantial rewrite) | |
17 | * Modified: Sat Apr 29 00:23:03 2000 (Added DONAUOBOE support) | |
18 | * Modified: Wed May 24 23:45:02 2000 (Fixed chipio_t structure) | |
19 | * Modified: 2.13 Christian Gennerat <christian.gennerat@polytechnique.org> | |
20 | * Modified: 2.13 dim jan 07 21:57:39 2001 (tested with kernel 2.4 & irnet/ppp) | |
21 | * Modified: 2.14 Christian Gennerat <christian.gennerat@polytechnique.org> | |
22 | * Modified: 2.14 lun fev 05 17:55:59 2001 (adapted to patch-2.4.1-pre8-irda1) | |
23 | * Modified: 2.15 Martin Lucina <mato@kotelna.sk> | |
24 | * Modified: 2.15 Fri Jun 21 20:40:59 2002 (sync with 2.4.18, substantial fixes) | |
25 | * Modified: 2.16 Martin Lucina <mato@kotelna.sk> | |
26 | * Modified: 2.16 Sat Jun 22 18:54:29 2002 (fix freeregion, default to verbose) | |
27 | * Modified: 2.17 Christian Gennerat <christian.gennerat@polytechnique.org> | |
28 | * Modified: 2.17 jeu sep 12 08:50:20 2002 (save_flags();cli(); replaced by spinlocks) | |
29 | * Modified: 2.18 Christian Gennerat <christian.gennerat@polytechnique.org> | |
30 | * Modified: 2.18 ven jan 10 03:14:16 2003 Change probe default options | |
31 | * | |
32 | * Copyright (c) 1999 James McKenzie, All Rights Reserved. | |
33 | * | |
34 | * This program is free software; you can redistribute it and/or | |
35 | * modify it under the terms of the GNU General Public License as | |
36 | * published by the Free Software Foundation; either version 2 of | |
37 | * the License, or (at your option) any later version. | |
38 | * | |
39 | * Neither James McKenzie nor Cambridge University admit liability nor | |
40 | * provide warranty for any of this software. This material is | |
41 | * provided "AS-IS" and at no charge. | |
42 | * | |
43 | * Applicable Models : Libretto 100/110CT and many more. | |
44 | * Toshiba refers to this chip as the type-O IR port, | |
45 | * or the type-DO IR port. | |
46 | * | |
47 | ********************************************************************/ | |
48 | ||
49 | /* Look at toshoboe.h (currently in include/net/irda) for details of */ | |
50 | /* Where to get documentation on the chip */ | |
51 | ||
1da177e4 LT |
52 | /* See below for a description of the logic in this driver */ |
53 | ||
54 | /* User servicable parts */ | |
55 | /* USE_PROBE Create the code which probes the chip and does a few tests */ | |
56 | /* do_probe module parameter Enable this code */ | |
57 | /* Probe code is very useful for understanding how the hardware works */ | |
58 | /* Use it with various combinations of TT_LEN, RX_LEN */ | |
59 | /* Strongly recomended, disable if the probe fails on your machine */ | |
60 | /* and send me <james@fishsoup.dhs.org> the output of dmesg */ | |
61 | #define USE_PROBE 1 | |
62 | #undef USE_PROBE | |
63 | ||
64 | /* Trace Transmit ring, interrupts, Receive ring or not ? */ | |
65 | #define PROBE_VERBOSE 1 | |
66 | ||
67 | /* Debug option, examine sent and received raw data */ | |
68 | /* Irdadump is better, but does not see all packets. enable it if you want. */ | |
69 | #undef DUMP_PACKETS | |
70 | ||
71 | /* MIR mode has not been tested. Some behaviour is different */ | |
72 | /* Seems to work against an Ericsson R520 for me. -Martin */ | |
73 | #define USE_MIR | |
74 | ||
75 | /* Schedule back to back hardware transmits wherever possible, otherwise */ | |
76 | /* we need an interrupt for every frame, unset if oboe works for a bit and */ | |
77 | /* then hangs */ | |
78 | #define OPTIMIZE_TX | |
79 | ||
80 | /* Set the number of slots in the rings */ | |
81 | /* If you get rx/tx fifo overflows at high bitrates, you can try increasing */ | |
82 | /* these */ | |
83 | ||
84 | #define RING_SIZE (OBOE_RING_SIZE_RX8 | OBOE_RING_SIZE_TX8) | |
85 | #define TX_SLOTS 8 | |
86 | #define RX_SLOTS 8 | |
87 | ||
88 | ||
89 | /* Less user servicable parts below here */ | |
90 | ||
91 | /* Test, Transmit and receive buffer sizes, adjust at your peril */ | |
92 | /* remarks: nfs usually needs 1k blocks */ | |
93 | /* remarks: in SIR mode, CRC is received, -> RX_LEN=TX_LEN+2 */ | |
94 | /* remarks: test accepts large blocks. Standard is 0x80 */ | |
95 | /* When TT_LEN > RX_LEN (SIR mode) data is stored in successive slots. */ | |
96 | /* When 3 or more slots are needed for each test packet, */ | |
97 | /* data received in the first slots is overwritten, even */ | |
98 | /* if OBOE_CTL_RX_HW_OWNS is not set, without any error! */ | |
99 | #define TT_LEN 0x80 | |
100 | #define TX_LEN 0xc00 | |
101 | #define RX_LEN 0xc04 | |
102 | /* Real transmitted length (SIR mode) is about 14+(2%*TX_LEN) more */ | |
103 | /* long than user-defined length (see async_wrap_skb) and is less then 4K */ | |
104 | /* Real received length is (max RX_LEN) differs from user-defined */ | |
105 | /* length only b the CRC (2 or 4 bytes) */ | |
106 | #define BUF_SAFETY 0x7a | |
107 | #define RX_BUF_SZ (RX_LEN) | |
108 | #define TX_BUF_SZ (TX_LEN+BUF_SAFETY) | |
109 | ||
110 | ||
111 | /* Logic of the netdev part of this driver */ | |
112 | ||
113 | /* The RX ring is filled with buffers, when a packet arrives */ | |
114 | /* it is DMA'd into the buffer which is marked used and RxDone called */ | |
115 | /* RxDone forms an skb (and checks the CRC if in SIR mode) and ships */ | |
116 | /* the packet off upstairs */ | |
117 | ||
118 | /* The transmitter on the oboe chip can work in one of two modes */ | |
119 | /* for each ring->tx[] the transmitter can either */ | |
120 | /* a) transmit the packet, leave the trasmitter enabled and proceed to */ | |
121 | /* the next ring */ | |
122 | /* OR */ | |
123 | /* b) transmit the packet, switch off the transmitter and issue TxDone */ | |
124 | ||
125 | /* All packets are entered into the ring in mode b), if the ring was */ | |
126 | /* empty the transmitter is started. */ | |
127 | ||
128 | /* If OPTIMIZE_TX is defined then in TxDone if the ring contains */ | |
129 | /* more than one packet, all but the last are set to mode a) [HOWEVER */ | |
130 | /* the hardware may not notice this, this is why we start in mode b) ] */ | |
131 | /* then restart the transmitter */ | |
132 | ||
133 | /* If OPTIMIZE_TX is not defined then we just restart the transmitter */ | |
134 | /* if the ring isn't empty */ | |
135 | ||
136 | /* Speed changes are delayed until the TxRing is empty */ | |
137 | /* mtt is handled by generating packets with bad CRCs, before the data */ | |
138 | ||
139 | /* TODO: */ | |
140 | /* check the mtt works ok */ | |
141 | /* finish the watchdog */ | |
142 | ||
143 | /* No user servicable parts below here */ | |
144 | ||
145 | #include <linux/module.h> | |
146 | ||
147 | #include <linux/kernel.h> | |
148 | #include <linux/types.h> | |
149 | #include <linux/skbuff.h> | |
150 | #include <linux/netdevice.h> | |
151 | #include <linux/ioport.h> | |
152 | #include <linux/delay.h> | |
153 | #include <linux/slab.h> | |
154 | #include <linux/init.h> | |
155 | #include <linux/pci.h> | |
156 | #include <linux/rtnetlink.h> | |
157 | ||
158 | #include <asm/system.h> | |
159 | #include <asm/io.h> | |
160 | ||
161 | #include <net/irda/wrapper.h> | |
162 | #include <net/irda/irda.h> | |
163 | //#include <net/irda/irmod.h> | |
164 | //#include <net/irda/irlap_frame.h> | |
165 | #include <net/irda/irda_device.h> | |
166 | #include <net/irda/crc.h> | |
167 | ||
168 | #include "donauboe.h" | |
169 | ||
170 | #define INB(port) inb_p(port) | |
171 | #define OUTB(val,port) outb_p(val,port) | |
172 | #define OUTBP(val,port) outb_p(val,port) | |
173 | ||
174 | #define PROMPT OUTB(OBOE_PROMPT_BIT,OBOE_PROMPT); | |
175 | ||
176 | #if PROBE_VERBOSE | |
177 | #define PROBE_DEBUG(args...) (printk (args)) | |
178 | #else | |
179 | #define PROBE_DEBUG(args...) ; | |
180 | #endif | |
181 | ||
182 | /* Set the DMA to be byte at a time */ | |
183 | #define CONFIG0H_DMA_OFF OBOE_CONFIG0H_RCVANY | |
184 | #define CONFIG0H_DMA_ON_NORX CONFIG0H_DMA_OFF| OBOE_CONFIG0H_ENDMAC | |
185 | #define CONFIG0H_DMA_ON CONFIG0H_DMA_ON_NORX | OBOE_CONFIG0H_ENRX | |
186 | ||
187 | static struct pci_device_id toshoboe_pci_tbl[] = { | |
188 | { PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_FIR701, PCI_ANY_ID, PCI_ANY_ID, }, | |
189 | { PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_FIRD01, PCI_ANY_ID, PCI_ANY_ID, }, | |
190 | { } /* Terminating entry */ | |
191 | }; | |
192 | MODULE_DEVICE_TABLE(pci, toshoboe_pci_tbl); | |
193 | ||
194 | #define DRIVER_NAME "toshoboe" | |
195 | static char *driver_name = DRIVER_NAME; | |
196 | ||
197 | static int max_baud = 4000000; | |
198 | #ifdef USE_PROBE | |
199 | static int do_probe = 0; | |
200 | #endif | |
201 | ||
202 | ||
203 | /**********************************************************************/ | |
204 | static int | |
205 | toshoboe_checkfcs (unsigned char *buf, int len) | |
206 | { | |
207 | int i; | |
208 | union | |
209 | { | |
210 | __u16 value; | |
211 | __u8 bytes[2]; | |
212 | } | |
213 | fcs; | |
214 | ||
215 | fcs.value = INIT_FCS; | |
216 | ||
217 | for (i = 0; i < len; ++i) | |
218 | fcs.value = irda_fcs (fcs.value, *(buf++)); | |
219 | ||
220 | return (fcs.value == GOOD_FCS); | |
221 | } | |
222 | ||
223 | /***********************************************************************/ | |
224 | /* Generic chip handling code */ | |
225 | #ifdef DUMP_PACKETS | |
226 | static unsigned char dump[50]; | |
227 | static void | |
228 | _dumpbufs (unsigned char *data, int len, char tete) | |
229 | { | |
230 | int i,j; | |
231 | char head=tete; | |
232 | for (i=0;i<len;i+=16) { | |
233 | for (j=0;j<16 && i+j<len;j++) { sprintf(&dump[3*j],"%02x.",data[i+j]); } | |
234 | dump [3*j]=0; | |
235 | IRDA_DEBUG (2, "%c%s\n",head , dump); | |
236 | head='+'; | |
237 | } | |
238 | } | |
239 | #endif | |
240 | ||
241 | #ifdef USE_PROBE | |
242 | /* Dump the registers */ | |
243 | static void | |
244 | toshoboe_dumpregs (struct toshoboe_cb *self) | |
245 | { | |
246 | __u32 ringbase; | |
247 | ||
a97a6f10 | 248 | IRDA_DEBUG (4, "%s()\n", __func__); |
1da177e4 LT |
249 | |
250 | ringbase = INB (OBOE_RING_BASE0) << 10; | |
251 | ringbase |= INB (OBOE_RING_BASE1) << 18; | |
252 | ringbase |= INB (OBOE_RING_BASE2) << 26; | |
253 | ||
254 | printk (KERN_ERR DRIVER_NAME ": Register dump:\n"); | |
255 | printk (KERN_ERR "Interrupts: Tx:%d Rx:%d TxUnder:%d RxOver:%d Sip:%d\n", | |
256 | self->int_tx, self->int_rx, self->int_txunder, self->int_rxover, | |
257 | self->int_sip); | |
258 | printk (KERN_ERR "RX %02x TX %02x RingBase %08x\n", | |
259 | INB (OBOE_RXSLOT), INB (OBOE_TXSLOT), ringbase); | |
260 | printk (KERN_ERR "RING_SIZE %02x IER %02x ISR %02x\n", | |
261 | INB (OBOE_RING_SIZE), INB (OBOE_IER), INB (OBOE_ISR)); | |
262 | printk (KERN_ERR "CONFIG1 %02x STATUS %02x\n", | |
263 | INB (OBOE_CONFIG1), INB (OBOE_STATUS)); | |
264 | printk (KERN_ERR "CONFIG0 %02x%02x ENABLE %02x%02x\n", | |
265 | INB (OBOE_CONFIG0H), INB (OBOE_CONFIG0L), | |
266 | INB (OBOE_ENABLEH), INB (OBOE_ENABLEL)); | |
267 | printk (KERN_ERR "NEW_PCONFIG %02x%02x CURR_PCONFIG %02x%02x\n", | |
268 | INB (OBOE_NEW_PCONFIGH), INB (OBOE_NEW_PCONFIGL), | |
269 | INB (OBOE_CURR_PCONFIGH), INB (OBOE_CURR_PCONFIGL)); | |
270 | printk (KERN_ERR "MAXLEN %02x%02x RXCOUNT %02x%02x\n", | |
271 | INB (OBOE_MAXLENH), INB (OBOE_MAXLENL), | |
272 | INB (OBOE_RXCOUNTL), INB (OBOE_RXCOUNTH)); | |
273 | ||
274 | if (self->ring) | |
275 | { | |
276 | int i; | |
277 | ringbase = virt_to_bus (self->ring); | |
278 | printk (KERN_ERR "Ring at %08x:\n", ringbase); | |
279 | printk (KERN_ERR "RX:"); | |
280 | for (i = 0; i < RX_SLOTS; ++i) | |
281 | printk (" (%d,%02x)",self->ring->rx[i].len,self->ring->rx[i].control); | |
282 | printk ("\n"); | |
283 | printk (KERN_ERR "TX:"); | |
284 | for (i = 0; i < RX_SLOTS; ++i) | |
285 | printk (" (%d,%02x)",self->ring->tx[i].len,self->ring->tx[i].control); | |
286 | printk ("\n"); | |
287 | } | |
288 | } | |
289 | #endif | |
290 | ||
291 | /*Don't let the chip look at memory */ | |
292 | static void | |
293 | toshoboe_disablebm (struct toshoboe_cb *self) | |
294 | { | |
295 | __u8 command; | |
a97a6f10 | 296 | IRDA_DEBUG (4, "%s()\n", __func__); |
1da177e4 LT |
297 | |
298 | pci_read_config_byte (self->pdev, PCI_COMMAND, &command); | |
299 | command &= ~PCI_COMMAND_MASTER; | |
300 | pci_write_config_byte (self->pdev, PCI_COMMAND, command); | |
301 | ||
302 | } | |
303 | ||
304 | /* Shutdown the chip and point the taskfile reg somewhere else */ | |
305 | static void | |
306 | toshoboe_stopchip (struct toshoboe_cb *self) | |
307 | { | |
a97a6f10 | 308 | IRDA_DEBUG (4, "%s()\n", __func__); |
1da177e4 LT |
309 | |
310 | /*Disable interrupts */ | |
311 | OUTB (0x0, OBOE_IER); | |
312 | /*Disable DMA, Disable Rx, Disable Tx */ | |
313 | OUTB (CONFIG0H_DMA_OFF, OBOE_CONFIG0H); | |
314 | /*Disable SIR MIR FIR, Tx and Rx */ | |
315 | OUTB (0x00, OBOE_ENABLEH); | |
316 | /*Point the ring somewhere safe */ | |
317 | OUTB (0x3f, OBOE_RING_BASE2); | |
318 | OUTB (0xff, OBOE_RING_BASE1); | |
319 | OUTB (0xff, OBOE_RING_BASE0); | |
320 | ||
321 | OUTB (RX_LEN >> 8, OBOE_MAXLENH); | |
322 | OUTB (RX_LEN & 0xff, OBOE_MAXLENL); | |
323 | ||
324 | /*Acknoledge any pending interrupts */ | |
325 | OUTB (0xff, OBOE_ISR); | |
326 | ||
327 | /*Why */ | |
328 | OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH); | |
329 | ||
330 | /*switch it off */ | |
331 | OUTB (OBOE_CONFIG1_OFF, OBOE_CONFIG1); | |
332 | ||
333 | toshoboe_disablebm (self); | |
334 | } | |
335 | ||
336 | /* Transmitter initialization */ | |
337 | static void | |
338 | toshoboe_start_DMA (struct toshoboe_cb *self, int opts) | |
339 | { | |
340 | OUTB (0x0, OBOE_ENABLEH); | |
341 | OUTB (CONFIG0H_DMA_ON | opts, OBOE_CONFIG0H); | |
342 | OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH); | |
343 | PROMPT; | |
344 | } | |
345 | ||
346 | /*Set the baud rate */ | |
347 | static void | |
348 | toshoboe_setbaud (struct toshoboe_cb *self) | |
349 | { | |
350 | __u16 pconfig = 0; | |
351 | __u8 config0l = 0; | |
352 | ||
a97a6f10 | 353 | IRDA_DEBUG (2, "%s(%d/%d)\n", __func__, self->speed, self->io.speed); |
1da177e4 LT |
354 | |
355 | switch (self->speed) | |
356 | { | |
357 | case 2400: | |
358 | case 4800: | |
359 | case 9600: | |
360 | case 19200: | |
361 | case 38400: | |
362 | case 57600: | |
363 | case 115200: | |
364 | #ifdef USE_MIR | |
365 | case 1152000: | |
366 | #endif | |
367 | case 4000000: | |
368 | break; | |
369 | default: | |
370 | ||
371 | printk (KERN_ERR DRIVER_NAME ": switch to unsupported baudrate %d\n", | |
372 | self->speed); | |
373 | return; | |
374 | } | |
375 | ||
376 | switch (self->speed) | |
377 | { | |
378 | /* For SIR the preamble is done by adding XBOFs */ | |
379 | /* to the packet */ | |
380 | /* set to filtered SIR mode, filter looks for BOF and EOF */ | |
381 | case 2400: | |
382 | pconfig |= 47 << OBOE_PCONFIG_BAUDSHIFT; | |
383 | pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT; | |
384 | break; | |
385 | case 4800: | |
386 | pconfig |= 23 << OBOE_PCONFIG_BAUDSHIFT; | |
387 | pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT; | |
388 | break; | |
389 | case 9600: | |
390 | pconfig |= 11 << OBOE_PCONFIG_BAUDSHIFT; | |
391 | pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT; | |
392 | break; | |
393 | case 19200: | |
394 | pconfig |= 5 << OBOE_PCONFIG_BAUDSHIFT; | |
395 | pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT; | |
396 | break; | |
397 | case 38400: | |
398 | pconfig |= 2 << OBOE_PCONFIG_BAUDSHIFT; | |
399 | pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT; | |
400 | break; | |
401 | case 57600: | |
402 | pconfig |= 1 << OBOE_PCONFIG_BAUDSHIFT; | |
403 | pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT; | |
404 | break; | |
405 | case 115200: | |
406 | pconfig |= 0 << OBOE_PCONFIG_BAUDSHIFT; | |
407 | pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT; | |
408 | break; | |
409 | default: | |
410 | /*Set to packet based reception */ | |
411 | OUTB (RX_LEN >> 8, OBOE_MAXLENH); | |
412 | OUTB (RX_LEN & 0xff, OBOE_MAXLENL); | |
413 | break; | |
414 | } | |
415 | ||
416 | switch (self->speed) | |
417 | { | |
418 | case 2400: | |
419 | case 4800: | |
420 | case 9600: | |
421 | case 19200: | |
422 | case 38400: | |
423 | case 57600: | |
424 | case 115200: | |
425 | config0l = OBOE_CONFIG0L_ENSIR; | |
426 | if (self->async) | |
427 | { | |
428 | /*Set to character based reception */ | |
429 | /*System will lock if MAXLEN=0 */ | |
430 | /*so have to be careful */ | |
431 | OUTB (0x01, OBOE_MAXLENH); | |
432 | OUTB (0x01, OBOE_MAXLENL); | |
433 | OUTB (0x00, OBOE_MAXLENH); | |
434 | } | |
435 | else | |
436 | { | |
437 | /*Set to packet based reception */ | |
438 | config0l |= OBOE_CONFIG0L_ENSIRF; | |
439 | OUTB (RX_LEN >> 8, OBOE_MAXLENH); | |
440 | OUTB (RX_LEN & 0xff, OBOE_MAXLENL); | |
441 | } | |
442 | break; | |
443 | ||
444 | #ifdef USE_MIR | |
445 | /* MIR mode */ | |
446 | /* Set for 16 bit CRC and enable MIR */ | |
447 | /* Preamble now handled by the chip */ | |
448 | case 1152000: | |
449 | pconfig |= 0 << OBOE_PCONFIG_BAUDSHIFT; | |
450 | pconfig |= 8 << OBOE_PCONFIG_WIDTHSHIFT; | |
451 | pconfig |= 1 << OBOE_PCONFIG_PREAMBLESHIFT; | |
452 | config0l = OBOE_CONFIG0L_CRC16 | OBOE_CONFIG0L_ENMIR; | |
453 | break; | |
454 | #endif | |
455 | /* FIR mode */ | |
456 | /* Set for 32 bit CRC and enable FIR */ | |
457 | /* Preamble handled by the chip */ | |
458 | case 4000000: | |
459 | pconfig |= 0 << OBOE_PCONFIG_BAUDSHIFT; | |
460 | /* Documentation says 14, but toshiba use 15 in their drivers */ | |
461 | pconfig |= 15 << OBOE_PCONFIG_PREAMBLESHIFT; | |
462 | config0l = OBOE_CONFIG0L_ENFIR; | |
463 | break; | |
464 | } | |
465 | ||
466 | /* Copy into new PHY config buffer */ | |
467 | OUTBP (pconfig >> 8, OBOE_NEW_PCONFIGH); | |
468 | OUTB (pconfig & 0xff, OBOE_NEW_PCONFIGL); | |
469 | OUTB (config0l, OBOE_CONFIG0L); | |
470 | ||
471 | /* Now make OBOE copy from new PHY to current PHY */ | |
472 | OUTB (0x0, OBOE_ENABLEH); | |
473 | OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH); | |
474 | PROMPT; | |
475 | ||
476 | /* speed change executed */ | |
477 | self->new_speed = 0; | |
478 | self->io.speed = self->speed; | |
479 | } | |
480 | ||
481 | /*Let the chip look at memory */ | |
482 | static void | |
483 | toshoboe_enablebm (struct toshoboe_cb *self) | |
484 | { | |
a97a6f10 | 485 | IRDA_DEBUG (4, "%s()\n", __func__); |
1da177e4 LT |
486 | pci_set_master (self->pdev); |
487 | } | |
488 | ||
489 | /*setup the ring */ | |
490 | static void | |
491 | toshoboe_initring (struct toshoboe_cb *self) | |
492 | { | |
493 | int i; | |
494 | ||
a97a6f10 | 495 | IRDA_DEBUG (4, "%s()\n", __func__); |
1da177e4 LT |
496 | |
497 | for (i = 0; i < TX_SLOTS; ++i) | |
498 | { | |
499 | self->ring->tx[i].len = 0; | |
500 | self->ring->tx[i].control = 0x00; | |
501 | self->ring->tx[i].address = virt_to_bus (self->tx_bufs[i]); | |
502 | } | |
503 | ||
504 | for (i = 0; i < RX_SLOTS; ++i) | |
505 | { | |
506 | self->ring->rx[i].len = RX_LEN; | |
507 | self->ring->rx[i].len = 0; | |
508 | self->ring->rx[i].address = virt_to_bus (self->rx_bufs[i]); | |
509 | self->ring->rx[i].control = OBOE_CTL_RX_HW_OWNS; | |
510 | } | |
511 | } | |
512 | ||
513 | static void | |
514 | toshoboe_resetptrs (struct toshoboe_cb *self) | |
515 | { | |
516 | /* Can reset pointers by twidling DMA */ | |
517 | OUTB (0x0, OBOE_ENABLEH); | |
518 | OUTBP (CONFIG0H_DMA_OFF, OBOE_CONFIG0H); | |
519 | OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH); | |
520 | ||
521 | self->rxs = inb_p (OBOE_RXSLOT) & OBOE_SLOT_MASK; | |
522 | self->txs = inb_p (OBOE_TXSLOT) & OBOE_SLOT_MASK; | |
523 | } | |
524 | ||
525 | /* Called in locked state */ | |
526 | static void | |
527 | toshoboe_initptrs (struct toshoboe_cb *self) | |
528 | { | |
529 | ||
530 | /* spin_lock_irqsave(self->spinlock, flags); */ | |
531 | /* save_flags (flags); */ | |
532 | ||
533 | /* Can reset pointers by twidling DMA */ | |
534 | toshoboe_resetptrs (self); | |
535 | ||
536 | OUTB (0x0, OBOE_ENABLEH); | |
537 | OUTB (CONFIG0H_DMA_ON, OBOE_CONFIG0H); | |
538 | OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH); | |
539 | ||
540 | self->txpending = 0; | |
541 | ||
542 | /* spin_unlock_irqrestore(self->spinlock, flags); */ | |
543 | /* restore_flags (flags); */ | |
544 | } | |
545 | ||
546 | /* Wake the chip up and get it looking at the rings */ | |
547 | /* Called in locked state */ | |
548 | static void | |
549 | toshoboe_startchip (struct toshoboe_cb *self) | |
550 | { | |
551 | __u32 physaddr; | |
552 | ||
a97a6f10 | 553 | IRDA_DEBUG (4, "%s()\n", __func__); |
1da177e4 LT |
554 | |
555 | toshoboe_initring (self); | |
556 | toshoboe_enablebm (self); | |
557 | OUTBP (OBOE_CONFIG1_RESET, OBOE_CONFIG1); | |
558 | OUTBP (OBOE_CONFIG1_ON, OBOE_CONFIG1); | |
559 | ||
560 | /* Stop the clocks */ | |
561 | OUTB (0, OBOE_ENABLEH); | |
562 | ||
563 | /*Set size of rings */ | |
564 | OUTB (RING_SIZE, OBOE_RING_SIZE); | |
565 | ||
566 | /*Acknoledge any pending interrupts */ | |
567 | OUTB (0xff, OBOE_ISR); | |
568 | ||
569 | /*Enable ints */ | |
570 | OUTB (OBOE_INT_TXDONE | OBOE_INT_RXDONE | | |
571 | OBOE_INT_TXUNDER | OBOE_INT_RXOVER | OBOE_INT_SIP , OBOE_IER); | |
572 | ||
573 | /*Acknoledge any pending interrupts */ | |
574 | OUTB (0xff, OBOE_ISR); | |
575 | ||
576 | /*Set the maximum packet length to 0xfff (4095) */ | |
577 | OUTB (RX_LEN >> 8, OBOE_MAXLENH); | |
578 | OUTB (RX_LEN & 0xff, OBOE_MAXLENL); | |
579 | ||
580 | /*Shutdown DMA */ | |
581 | OUTB (CONFIG0H_DMA_OFF, OBOE_CONFIG0H); | |
582 | ||
583 | /*Find out where the rings live */ | |
584 | physaddr = virt_to_bus (self->ring); | |
585 | ||
586 | IRDA_ASSERT ((physaddr & 0x3ff) == 0, | |
587 | printk (KERN_ERR DRIVER_NAME "ring not correctly aligned\n"); | |
588 | return;); | |
589 | ||
590 | OUTB ((physaddr >> 10) & 0xff, OBOE_RING_BASE0); | |
591 | OUTB ((physaddr >> 18) & 0xff, OBOE_RING_BASE1); | |
592 | OUTB ((physaddr >> 26) & 0x3f, OBOE_RING_BASE2); | |
593 | ||
3a4fa0a2 | 594 | /*Enable DMA controller in byte mode and RX */ |
1da177e4 LT |
595 | OUTB (CONFIG0H_DMA_ON, OBOE_CONFIG0H); |
596 | ||
597 | /* Start up the clocks */ | |
598 | OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH); | |
599 | ||
600 | /*set to sensible speed */ | |
601 | self->speed = 9600; | |
602 | toshoboe_setbaud (self); | |
603 | toshoboe_initptrs (self); | |
604 | } | |
605 | ||
606 | static void | |
607 | toshoboe_isntstuck (struct toshoboe_cb *self) | |
608 | { | |
609 | } | |
610 | ||
611 | static void | |
612 | toshoboe_checkstuck (struct toshoboe_cb *self) | |
613 | { | |
614 | unsigned long flags; | |
615 | ||
616 | if (0) | |
617 | { | |
618 | spin_lock_irqsave(&self->spinlock, flags); | |
619 | ||
620 | /* This will reset the chip completely */ | |
621 | printk (KERN_ERR DRIVER_NAME ": Resetting chip\n"); | |
622 | ||
623 | toshoboe_stopchip (self); | |
624 | toshoboe_startchip (self); | |
625 | spin_unlock_irqrestore(&self->spinlock, flags); | |
626 | } | |
627 | } | |
628 | ||
629 | /*Generate packet of about mtt us long */ | |
630 | static int | |
631 | toshoboe_makemttpacket (struct toshoboe_cb *self, void *buf, int mtt) | |
632 | { | |
633 | int xbofs; | |
634 | ||
635 | xbofs = ((int) (mtt/100)) * (int) (self->speed); | |
636 | xbofs=xbofs/80000; /*Eight bits per byte, and mtt is in us*/ | |
637 | xbofs++; | |
638 | ||
639 | IRDA_DEBUG (2, DRIVER_NAME | |
640 | ": generated mtt of %d bytes for %d us at %d baud\n" | |
641 | , xbofs,mtt,self->speed); | |
642 | ||
643 | if (xbofs > TX_LEN) | |
644 | { | |
645 | printk (KERN_ERR DRIVER_NAME ": wanted %d bytes MTT but TX_LEN is %d\n", | |
646 | xbofs, TX_LEN); | |
647 | xbofs = TX_LEN; | |
648 | } | |
649 | ||
650 | /*xbofs will do for SIR, MIR and FIR,SIR mode doesn't generate a checksum anyway */ | |
651 | memset (buf, XBOF, xbofs); | |
652 | ||
653 | return xbofs; | |
654 | } | |
655 | ||
1da177e4 LT |
656 | #ifdef USE_PROBE |
657 | /***********************************************************************/ | |
658 | /* Probe code */ | |
659 | ||
660 | static void | |
661 | toshoboe_dumptx (struct toshoboe_cb *self) | |
662 | { | |
663 | int i; | |
664 | PROBE_DEBUG(KERN_WARNING "TX:"); | |
665 | for (i = 0; i < RX_SLOTS; ++i) | |
666 | PROBE_DEBUG(" (%d,%02x)",self->ring->tx[i].len,self->ring->tx[i].control); | |
667 | PROBE_DEBUG(" [%d]\n",self->speed); | |
668 | } | |
669 | ||
670 | static void | |
671 | toshoboe_dumprx (struct toshoboe_cb *self, int score) | |
672 | { | |
673 | int i; | |
674 | PROBE_DEBUG(" %d\nRX:",score); | |
675 | for (i = 0; i < RX_SLOTS; ++i) | |
676 | PROBE_DEBUG(" (%d,%02x)",self->ring->rx[i].len,self->ring->rx[i].control); | |
677 | PROBE_DEBUG("\n"); | |
678 | } | |
679 | ||
680 | static inline int | |
681 | stuff_byte (__u8 byte, __u8 * buf) | |
682 | { | |
683 | switch (byte) | |
684 | { | |
685 | case BOF: /* FALLTHROUGH */ | |
686 | case EOF: /* FALLTHROUGH */ | |
687 | case CE: | |
688 | /* Insert transparently coded */ | |
689 | buf[0] = CE; /* Send link escape */ | |
690 | buf[1] = byte ^ IRDA_TRANS; /* Complement bit 5 */ | |
691 | return 2; | |
692 | /* break; */ | |
693 | default: | |
694 | /* Non-special value, no transparency required */ | |
695 | buf[0] = byte; | |
696 | return 1; | |
697 | /* break; */ | |
698 | } | |
699 | } | |
700 | ||
701 | static irqreturn_t | |
7d12e780 | 702 | toshoboe_probeinterrupt (int irq, void *dev_id) |
1da177e4 | 703 | { |
c31f28e7 | 704 | struct toshoboe_cb *self = dev_id; |
1da177e4 LT |
705 | __u8 irqstat; |
706 | ||
1da177e4 LT |
707 | irqstat = INB (OBOE_ISR); |
708 | ||
709 | /* was it us */ | |
710 | if (!(irqstat & OBOE_INT_MASK)) | |
711 | return IRQ_NONE; | |
712 | ||
713 | /* Ack all the interrupts */ | |
714 | OUTB (irqstat, OBOE_ISR); | |
715 | ||
716 | if (irqstat & OBOE_INT_TXDONE) | |
717 | { | |
718 | int txp; | |
719 | ||
720 | self->int_tx++; | |
721 | PROBE_DEBUG("T"); | |
722 | ||
723 | txp = INB (OBOE_TXSLOT) & OBOE_SLOT_MASK; | |
724 | if (self->ring->tx[txp].control & OBOE_CTL_TX_HW_OWNS) | |
725 | { | |
726 | self->int_tx+=100; | |
727 | PROBE_DEBUG("S"); | |
728 | toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX | OBOE_CONFIG0H_LOOP); | |
729 | } | |
730 | } | |
731 | ||
732 | if (irqstat & OBOE_INT_RXDONE) { | |
733 | self->int_rx++; | |
734 | PROBE_DEBUG("R"); } | |
735 | if (irqstat & OBOE_INT_TXUNDER) { | |
736 | self->int_txunder++; | |
737 | PROBE_DEBUG("U"); } | |
738 | if (irqstat & OBOE_INT_RXOVER) { | |
739 | self->int_rxover++; | |
740 | PROBE_DEBUG("O"); } | |
741 | if (irqstat & OBOE_INT_SIP) { | |
742 | self->int_sip++; | |
743 | PROBE_DEBUG("I"); } | |
744 | return IRQ_HANDLED; | |
745 | } | |
746 | ||
747 | static int | |
748 | toshoboe_maketestpacket (unsigned char *buf, int badcrc, int fir) | |
749 | { | |
750 | int i; | |
751 | int len = 0; | |
752 | union | |
753 | { | |
754 | __u16 value; | |
755 | __u8 bytes[2]; | |
756 | } | |
757 | fcs; | |
758 | ||
759 | if (fir) | |
760 | { | |
761 | memset (buf, 0, TT_LEN); | |
762 | return (TT_LEN); | |
763 | } | |
764 | ||
765 | fcs.value = INIT_FCS; | |
766 | ||
767 | memset (buf, XBOF, 10); | |
768 | len += 10; | |
769 | buf[len++] = BOF; | |
770 | ||
771 | for (i = 0; i < TT_LEN; ++i) | |
772 | { | |
773 | len += stuff_byte (i, buf + len); | |
774 | fcs.value = irda_fcs (fcs.value, i); | |
775 | } | |
776 | ||
777 | len += stuff_byte (fcs.bytes[0] ^ badcrc, buf + len); | |
778 | len += stuff_byte (fcs.bytes[1] ^ badcrc, buf + len); | |
779 | buf[len++] = EOF; | |
780 | len++; | |
781 | return len; | |
782 | } | |
783 | ||
784 | static int | |
785 | toshoboe_probefail (struct toshoboe_cb *self, char *msg) | |
786 | { | |
787 | printk (KERN_ERR DRIVER_NAME "probe(%d) failed %s\n",self-> speed, msg); | |
788 | toshoboe_dumpregs (self); | |
789 | toshoboe_stopchip (self); | |
790 | free_irq (self->io.irq, (void *) self); | |
791 | return 0; | |
792 | } | |
793 | ||
794 | static int | |
795 | toshoboe_numvalidrcvs (struct toshoboe_cb *self) | |
796 | { | |
797 | int i, ret = 0; | |
798 | for (i = 0; i < RX_SLOTS; ++i) | |
799 | if ((self->ring->rx[i].control & 0xe0) == 0) | |
800 | ret++; | |
801 | ||
802 | return ret; | |
803 | } | |
804 | ||
805 | static int | |
806 | toshoboe_numrcvs (struct toshoboe_cb *self) | |
807 | { | |
808 | int i, ret = 0; | |
809 | for (i = 0; i < RX_SLOTS; ++i) | |
810 | if (!(self->ring->rx[i].control & OBOE_CTL_RX_HW_OWNS)) | |
811 | ret++; | |
812 | ||
813 | return ret; | |
814 | } | |
815 | ||
816 | static int | |
817 | toshoboe_probe (struct toshoboe_cb *self) | |
818 | { | |
819 | int i, j, n; | |
820 | #ifdef USE_MIR | |
821 | int bauds[] = { 9600, 115200, 4000000, 1152000 }; | |
822 | #else | |
823 | int bauds[] = { 9600, 115200, 4000000 }; | |
824 | #endif | |
825 | unsigned long flags; | |
826 | ||
a97a6f10 | 827 | IRDA_DEBUG (4, "%s()\n", __func__); |
1da177e4 LT |
828 | |
829 | if (request_irq (self->io.irq, toshoboe_probeinterrupt, | |
830 | self->io.irqflags, "toshoboe", (void *) self)) | |
831 | { | |
832 | printk (KERN_ERR DRIVER_NAME ": probe failed to allocate irq %d\n", | |
833 | self->io.irq); | |
834 | return 0; | |
835 | } | |
836 | ||
837 | /* test 1: SIR filter and back to back */ | |
838 | ||
e9edda69 | 839 | for (j = 0; j < ARRAY_SIZE(bauds); ++j) |
1da177e4 LT |
840 | { |
841 | int fir = (j > 1); | |
842 | toshoboe_stopchip (self); | |
843 | ||
844 | ||
845 | spin_lock_irqsave(&self->spinlock, flags); | |
846 | /*Address is already setup */ | |
847 | toshoboe_startchip (self); | |
848 | self->int_rx = self->int_tx = 0; | |
849 | self->speed = bauds[j]; | |
850 | toshoboe_setbaud (self); | |
851 | toshoboe_initptrs (self); | |
852 | spin_unlock_irqrestore(&self->spinlock, flags); | |
853 | ||
854 | self->ring->tx[self->txs].control = | |
855 | /* (FIR only) OBOE_CTL_TX_SIP needed for switching to next slot */ | |
856 | /* MIR: all received data is stored in one slot */ | |
857 | (fir) ? OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX | |
858 | : OBOE_CTL_TX_HW_OWNS ; | |
859 | self->ring->tx[self->txs].len = | |
860 | toshoboe_maketestpacket (self->tx_bufs[self->txs], 0, fir); | |
861 | self->txs++; | |
862 | self->txs %= TX_SLOTS; | |
863 | ||
864 | self->ring->tx[self->txs].control = | |
865 | (fir) ? OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_SIP | |
866 | : OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX ; | |
867 | self->ring->tx[self->txs].len = | |
868 | toshoboe_maketestpacket (self->tx_bufs[self->txs], 0, fir); | |
869 | self->txs++; | |
870 | self->txs %= TX_SLOTS; | |
871 | ||
872 | self->ring->tx[self->txs].control = | |
873 | (fir) ? OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX | |
874 | : OBOE_CTL_TX_HW_OWNS ; | |
875 | self->ring->tx[self->txs].len = | |
876 | toshoboe_maketestpacket (self->tx_bufs[self->txs], 0, fir); | |
877 | self->txs++; | |
878 | self->txs %= TX_SLOTS; | |
879 | ||
880 | self->ring->tx[self->txs].control = | |
881 | (fir) ? OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX | |
882 | | OBOE_CTL_TX_SIP | OBOE_CTL_TX_BAD_CRC | |
883 | : OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX ; | |
884 | self->ring->tx[self->txs].len = | |
885 | toshoboe_maketestpacket (self->tx_bufs[self->txs], 0, fir); | |
886 | self->txs++; | |
887 | self->txs %= TX_SLOTS; | |
888 | ||
889 | toshoboe_dumptx (self); | |
890 | /* Turn on TX and RX and loopback */ | |
891 | toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX | OBOE_CONFIG0H_LOOP); | |
892 | ||
893 | i = 0; | |
894 | n = fir ? 1 : 4; | |
895 | while (toshoboe_numvalidrcvs (self) != n) | |
896 | { | |
897 | if (i > 4800) | |
898 | return toshoboe_probefail (self, "filter test"); | |
899 | udelay ((9600*(TT_LEN+16))/self->speed); | |
900 | i++; | |
901 | } | |
902 | ||
903 | n = fir ? 203 : 102; | |
904 | while ((toshoboe_numrcvs(self) != self->int_rx) || (self->int_tx != n)) | |
905 | { | |
906 | if (i > 4800) | |
907 | return toshoboe_probefail (self, "interrupt test"); | |
908 | udelay ((9600*(TT_LEN+16))/self->speed); | |
909 | i++; | |
910 | } | |
911 | toshoboe_dumprx (self,i); | |
912 | ||
913 | } | |
914 | ||
915 | /* test 2: SIR in char at a time */ | |
916 | ||
917 | toshoboe_stopchip (self); | |
918 | self->int_rx = self->int_tx = 0; | |
919 | ||
920 | spin_lock_irqsave(&self->spinlock, flags); | |
921 | toshoboe_startchip (self); | |
922 | spin_unlock_irqrestore(&self->spinlock, flags); | |
923 | ||
924 | self->async = 1; | |
925 | self->speed = 115200; | |
926 | toshoboe_setbaud (self); | |
927 | self->ring->tx[self->txs].control = | |
928 | OBOE_CTL_TX_RTCENTX | OBOE_CTL_TX_HW_OWNS; | |
929 | self->ring->tx[self->txs].len = 4; | |
930 | ||
931 | ((unsigned char *) self->tx_bufs[self->txs])[0] = 'f'; | |
932 | ((unsigned char *) self->tx_bufs[self->txs])[1] = 'i'; | |
933 | ((unsigned char *) self->tx_bufs[self->txs])[2] = 's'; | |
934 | ((unsigned char *) self->tx_bufs[self->txs])[3] = 'h'; | |
935 | toshoboe_dumptx (self); | |
936 | toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX | OBOE_CONFIG0H_LOOP); | |
937 | ||
938 | i = 0; | |
939 | while (toshoboe_numvalidrcvs (self) != 4) | |
940 | { | |
941 | if (i > 100) | |
942 | return toshoboe_probefail (self, "Async test"); | |
943 | udelay (100); | |
944 | i++; | |
945 | } | |
946 | ||
947 | while ((toshoboe_numrcvs (self) != self->int_rx) || (self->int_tx != 1)) | |
948 | { | |
949 | if (i > 100) | |
950 | return toshoboe_probefail (self, "Async interrupt test"); | |
951 | udelay (100); | |
952 | i++; | |
953 | } | |
954 | toshoboe_dumprx (self,i); | |
955 | ||
956 | self->async = 0; | |
957 | self->speed = 9600; | |
958 | toshoboe_setbaud (self); | |
959 | toshoboe_stopchip (self); | |
960 | ||
961 | free_irq (self->io.irq, (void *) self); | |
962 | ||
963 | printk (KERN_WARNING DRIVER_NAME ": Self test passed ok\n"); | |
964 | ||
965 | return 1; | |
966 | } | |
967 | #endif | |
968 | ||
969 | /******************************************************************/ | |
970 | /* Netdev style code */ | |
971 | ||
972 | /* Transmit something */ | |
6518bbb8 | 973 | static netdev_tx_t |
1da177e4 LT |
974 | toshoboe_hard_xmit (struct sk_buff *skb, struct net_device *dev) |
975 | { | |
976 | struct toshoboe_cb *self; | |
977 | __s32 speed; | |
978 | int mtt, len, ctl; | |
979 | unsigned long flags; | |
980 | struct irda_skb_cb *cb = (struct irda_skb_cb *) skb->cb; | |
981 | ||
4cf1653a | 982 | self = netdev_priv(dev); |
1da177e4 | 983 | |
ec634fe3 | 984 | IRDA_ASSERT (self != NULL, return NETDEV_TX_OK; ); |
1da177e4 | 985 | |
a97a6f10 | 986 | IRDA_DEBUG (1, "%s.tx:%x(%x)%x\n", __func__ |
1da177e4 LT |
987 | ,skb->len,self->txpending,INB (OBOE_ENABLEH)); |
988 | if (!cb->magic) { | |
a97a6f10 | 989 | IRDA_DEBUG (2, "%s.Not IrLAP:%x\n", __func__, cb->magic); |
1da177e4 LT |
990 | #ifdef DUMP_PACKETS |
991 | _dumpbufs(skb->data,skb->len,'>'); | |
992 | #endif | |
993 | } | |
994 | ||
995 | /* change speed pending, wait for its execution */ | |
996 | if (self->new_speed) | |
4bd73ae2 | 997 | return NETDEV_TX_BUSY; |
1da177e4 LT |
998 | |
999 | /* device stopped (apm) wait for restart */ | |
1000 | if (self->stopped) | |
4bd73ae2 | 1001 | return NETDEV_TX_BUSY; |
1da177e4 LT |
1002 | |
1003 | toshoboe_checkstuck (self); | |
1004 | ||
1005 | dev->trans_start = jiffies; | |
1006 | ||
1007 | /* Check if we need to change the speed */ | |
1008 | /* But not now. Wait after transmission if mtt not required */ | |
1009 | speed=irda_get_next_speed(skb); | |
1010 | if ((speed != self->io.speed) && (speed != -1)) | |
1011 | { | |
1012 | spin_lock_irqsave(&self->spinlock, flags); | |
1013 | ||
1014 | if (self->txpending || skb->len) | |
1015 | { | |
1016 | self->new_speed = speed; | |
1017 | IRDA_DEBUG (1, "%s: Queued TxDone scheduled speed change %d\n" , | |
a97a6f10 | 1018 | __func__, speed); |
1da177e4 LT |
1019 | /* if no data, that's all! */ |
1020 | if (!skb->len) | |
1021 | { | |
1022 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1023 | dev_kfree_skb (skb); | |
6ed10654 | 1024 | return NETDEV_TX_OK; |
1da177e4 LT |
1025 | } |
1026 | /* True packet, go on, but */ | |
1027 | /* do not accept anything before change speed execution */ | |
1028 | netif_stop_queue(dev); | |
1029 | /* ready to process TxDone interrupt */ | |
1030 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1031 | } | |
1032 | else | |
1033 | { | |
1034 | /* idle and no data, change speed now */ | |
1035 | self->speed = speed; | |
1036 | toshoboe_setbaud (self); | |
1037 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1038 | dev_kfree_skb (skb); | |
6ed10654 | 1039 | return NETDEV_TX_OK; |
1da177e4 LT |
1040 | } |
1041 | ||
1042 | } | |
1043 | ||
1044 | if ((mtt = irda_get_mtt(skb))) | |
1045 | { | |
1046 | /* This is fair since the queue should be empty anyway */ | |
1047 | spin_lock_irqsave(&self->spinlock, flags); | |
1048 | ||
1049 | if (self->txpending) | |
1050 | { | |
1051 | spin_unlock_irqrestore(&self->spinlock, flags); | |
4bd73ae2 | 1052 | return NETDEV_TX_BUSY; |
1da177e4 LT |
1053 | } |
1054 | ||
1055 | /* If in SIR mode we need to generate a string of XBOFs */ | |
1056 | /* In MIR and FIR we need to generate a string of data */ | |
1057 | /* which we will add a wrong checksum to */ | |
1058 | ||
1059 | mtt = toshoboe_makemttpacket (self, self->tx_bufs[self->txs], mtt); | |
a97a6f10 | 1060 | IRDA_DEBUG (1, "%s.mtt:%x(%x)%d\n", __func__ |
1da177e4 LT |
1061 | ,skb->len,mtt,self->txpending); |
1062 | if (mtt) | |
1063 | { | |
1064 | self->ring->tx[self->txs].len = mtt & 0xfff; | |
1065 | ||
1066 | ctl = OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX; | |
1067 | if (INB (OBOE_ENABLEH) & OBOE_ENABLEH_FIRON) | |
1068 | { | |
1069 | ctl |= OBOE_CTL_TX_BAD_CRC | OBOE_CTL_TX_SIP ; | |
1070 | } | |
1071 | #ifdef USE_MIR | |
1072 | else if (INB (OBOE_ENABLEH) & OBOE_ENABLEH_MIRON) | |
1073 | { | |
1074 | ctl |= OBOE_CTL_TX_BAD_CRC; | |
1075 | } | |
1076 | #endif | |
1077 | self->ring->tx[self->txs].control = ctl; | |
1078 | ||
1079 | OUTB (0x0, OBOE_ENABLEH); | |
1080 | /* It is only a timer. Do not send mtt packet outside! */ | |
1081 | toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX | OBOE_CONFIG0H_LOOP); | |
1082 | ||
1083 | self->txpending++; | |
1084 | ||
1085 | self->txs++; | |
1086 | self->txs %= TX_SLOTS; | |
1087 | ||
1088 | } | |
1089 | else | |
1090 | { | |
1091 | printk(KERN_ERR DRIVER_NAME ": problem with mtt packet - ignored\n"); | |
1092 | } | |
1093 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1094 | } | |
1095 | ||
1096 | #ifdef DUMP_PACKETS | |
1097 | dumpbufs(skb->data,skb->len,'>'); | |
1098 | #endif | |
1099 | ||
1100 | spin_lock_irqsave(&self->spinlock, flags); | |
1101 | ||
1102 | if (self->ring->tx[self->txs].control & OBOE_CTL_TX_HW_OWNS) | |
1103 | { | |
a97a6f10 | 1104 | IRDA_DEBUG (0, "%s.ful:%x(%x)%x\n", __func__ |
1da177e4 LT |
1105 | ,skb->len, self->ring->tx[self->txs].control, self->txpending); |
1106 | toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX); | |
1107 | spin_unlock_irqrestore(&self->spinlock, flags); | |
4bd73ae2 | 1108 | return NETDEV_TX_BUSY; |
1da177e4 LT |
1109 | } |
1110 | ||
1111 | if (INB (OBOE_ENABLEH) & OBOE_ENABLEH_SIRON) | |
1112 | { | |
1113 | len = async_wrap_skb (skb, self->tx_bufs[self->txs], TX_BUF_SZ); | |
1114 | } | |
1115 | else | |
1116 | { | |
1117 | len = skb->len; | |
d626f62b | 1118 | skb_copy_from_linear_data(skb, self->tx_bufs[self->txs], len); |
1da177e4 LT |
1119 | } |
1120 | self->ring->tx[self->txs].len = len & 0x0fff; | |
1121 | ||
1122 | /*Sometimes the HW doesn't see us assert RTCENTX in the interrupt code */ | |
1123 | /*later this plays safe, we garuntee the last packet to be transmitted */ | |
1124 | /*has RTCENTX set */ | |
1125 | ||
1126 | ctl = OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX; | |
1127 | if (INB (OBOE_ENABLEH) & OBOE_ENABLEH_FIRON) | |
1128 | { | |
1129 | ctl |= OBOE_CTL_TX_SIP ; | |
1130 | } | |
1131 | self->ring->tx[self->txs].control = ctl; | |
1132 | ||
1133 | /* If transmitter is idle start in one-shot mode */ | |
1134 | ||
1135 | if (!self->txpending) | |
1136 | toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX); | |
1137 | ||
1138 | self->txpending++; | |
1139 | ||
1140 | self->txs++; | |
1141 | self->txs %= TX_SLOTS; | |
1142 | ||
1143 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1144 | dev_kfree_skb (skb); | |
1145 | ||
6ed10654 | 1146 | return NETDEV_TX_OK; |
1da177e4 LT |
1147 | } |
1148 | ||
1149 | /*interrupt handler */ | |
1150 | static irqreturn_t | |
7d12e780 | 1151 | toshoboe_interrupt (int irq, void *dev_id) |
1da177e4 | 1152 | { |
15e541fe | 1153 | struct toshoboe_cb *self = dev_id; |
1da177e4 LT |
1154 | __u8 irqstat; |
1155 | struct sk_buff *skb = NULL; | |
1156 | ||
1da177e4 LT |
1157 | irqstat = INB (OBOE_ISR); |
1158 | ||
1159 | /* was it us */ | |
1160 | if (!(irqstat & OBOE_INT_MASK)) | |
1161 | return IRQ_NONE; | |
1162 | ||
1163 | /* Ack all the interrupts */ | |
1164 | OUTB (irqstat, OBOE_ISR); | |
1165 | ||
1166 | toshoboe_isntstuck (self); | |
1167 | ||
1168 | /* Txdone */ | |
1169 | if (irqstat & OBOE_INT_TXDONE) | |
1170 | { | |
1171 | int txp, txpc; | |
1172 | int i; | |
1173 | ||
1174 | txp = self->txpending; | |
1175 | self->txpending = 0; | |
1176 | ||
1177 | for (i = 0; i < TX_SLOTS; ++i) | |
1178 | { | |
1179 | if (self->ring->tx[i].control & OBOE_CTL_TX_HW_OWNS) | |
1180 | self->txpending++; | |
1181 | } | |
a97a6f10 | 1182 | IRDA_DEBUG (1, "%s.txd(%x)%x/%x\n", __func__ |
1da177e4 LT |
1183 | ,irqstat,txp,self->txpending); |
1184 | ||
1185 | txp = INB (OBOE_TXSLOT) & OBOE_SLOT_MASK; | |
1186 | ||
1187 | /* Got anything queued ? start it together */ | |
1188 | if (self->ring->tx[txp].control & OBOE_CTL_TX_HW_OWNS) | |
1189 | { | |
1190 | txpc = txp; | |
1191 | #ifdef OPTIMIZE_TX | |
1192 | while (self->ring->tx[txpc].control & OBOE_CTL_TX_HW_OWNS) | |
1193 | { | |
1194 | txp = txpc; | |
1195 | txpc++; | |
1196 | txpc %= TX_SLOTS; | |
216c32d4 | 1197 | self->netdev->stats.tx_packets++; |
1da177e4 LT |
1198 | if (self->ring->tx[txpc].control & OBOE_CTL_TX_HW_OWNS) |
1199 | self->ring->tx[txp].control &= ~OBOE_CTL_TX_RTCENTX; | |
1200 | } | |
216c32d4 | 1201 | self->netdev->stats.tx_packets--; |
1da177e4 | 1202 | #else |
216c32d4 | 1203 | self->netdev->stats.tx_packets++; |
1da177e4 LT |
1204 | #endif |
1205 | toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX); | |
1206 | } | |
1207 | ||
1208 | if ((!self->txpending) && (self->new_speed)) | |
1209 | { | |
1210 | self->speed = self->new_speed; | |
1211 | IRDA_DEBUG (1, "%s: Executed TxDone scheduled speed change %d\n", | |
a97a6f10 | 1212 | __func__, self->speed); |
1da177e4 LT |
1213 | toshoboe_setbaud (self); |
1214 | } | |
1215 | ||
1216 | /* Tell network layer that we want more frames */ | |
1217 | if (!self->new_speed) | |
1218 | netif_wake_queue(self->netdev); | |
1219 | } | |
1220 | ||
1221 | if (irqstat & OBOE_INT_RXDONE) | |
1222 | { | |
1223 | while (!(self->ring->rx[self->rxs].control & OBOE_CTL_RX_HW_OWNS)) | |
1224 | { | |
1225 | int len = self->ring->rx[self->rxs].len; | |
1226 | skb = NULL; | |
a97a6f10 | 1227 | IRDA_DEBUG (3, "%s.rcv:%x(%x)\n", __func__ |
1da177e4 LT |
1228 | ,len,self->ring->rx[self->rxs].control); |
1229 | ||
1230 | #ifdef DUMP_PACKETS | |
1231 | dumpbufs(self->rx_bufs[self->rxs],len,'<'); | |
1232 | #endif | |
1233 | ||
1234 | if (self->ring->rx[self->rxs].control == 0) | |
1235 | { | |
1236 | __u8 enable = INB (OBOE_ENABLEH); | |
1237 | ||
1238 | /* In SIR mode we need to check the CRC as this */ | |
1239 | /* hasn't been done by the hardware */ | |
1240 | if (enable & OBOE_ENABLEH_SIRON) | |
1241 | { | |
1242 | if (!toshoboe_checkfcs (self->rx_bufs[self->rxs], len)) | |
1243 | len = 0; | |
1244 | /*Trim off the CRC */ | |
1245 | if (len > 1) | |
1246 | len -= 2; | |
1247 | else | |
1248 | len = 0; | |
a97a6f10 | 1249 | IRDA_DEBUG (1, "%s.SIR:%x(%x)\n", __func__, len,enable); |
1da177e4 LT |
1250 | } |
1251 | ||
1252 | #ifdef USE_MIR | |
1253 | else if (enable & OBOE_ENABLEH_MIRON) | |
1254 | { | |
1255 | if (len > 1) | |
1256 | len -= 2; | |
1257 | else | |
1258 | len = 0; | |
a97a6f10 | 1259 | IRDA_DEBUG (2, "%s.MIR:%x(%x)\n", __func__, len,enable); |
1da177e4 LT |
1260 | } |
1261 | #endif | |
1262 | else if (enable & OBOE_ENABLEH_FIRON) | |
1263 | { | |
1264 | if (len > 3) | |
1265 | len -= 4; /*FIXME: check this */ | |
1266 | else | |
1267 | len = 0; | |
a97a6f10 | 1268 | IRDA_DEBUG (1, "%s.FIR:%x(%x)\n", __func__, len,enable); |
1da177e4 LT |
1269 | } |
1270 | else | |
a97a6f10 | 1271 | IRDA_DEBUG (0, "%s.?IR:%x(%x)\n", __func__, len,enable); |
1da177e4 LT |
1272 | |
1273 | if (len) | |
1274 | { | |
1275 | skb = dev_alloc_skb (len + 1); | |
1276 | if (skb) | |
1277 | { | |
1278 | skb_reserve (skb, 1); | |
1279 | ||
1280 | skb_put (skb, len); | |
27d7ff46 ACM |
1281 | skb_copy_to_linear_data(skb, self->rx_bufs[self->rxs], |
1282 | len); | |
216c32d4 | 1283 | self->netdev->stats.rx_packets++; |
1da177e4 | 1284 | skb->dev = self->netdev; |
459a98ed | 1285 | skb_reset_mac_header(skb); |
1da177e4 LT |
1286 | skb->protocol = htons (ETH_P_IRDA); |
1287 | } | |
1288 | else | |
1289 | { | |
1290 | printk (KERN_INFO | |
1291 | "%s(), memory squeeze, dropping frame.\n", | |
a97a6f10 | 1292 | __func__); |
1da177e4 LT |
1293 | } |
1294 | } | |
1295 | } | |
1296 | else | |
1297 | { | |
1298 | /* TODO: =========================================== */ | |
1299 | /* if OBOE_CTL_RX_LENGTH, our buffers are too small */ | |
1300 | /* (MIR or FIR) data is lost. */ | |
1301 | /* (SIR) data is splitted in several slots. */ | |
1302 | /* we have to join all the received buffers received */ | |
1303 | /*in a large buffer before checking CRC. */ | |
a97a6f10 | 1304 | IRDA_DEBUG (0, "%s.err:%x(%x)\n", __func__ |
1da177e4 LT |
1305 | ,len,self->ring->rx[self->rxs].control); |
1306 | } | |
1307 | ||
1308 | self->ring->rx[self->rxs].len = 0x0; | |
1309 | self->ring->rx[self->rxs].control = OBOE_CTL_RX_HW_OWNS; | |
1310 | ||
1311 | self->rxs++; | |
1312 | self->rxs %= RX_SLOTS; | |
1313 | ||
1314 | if (skb) | |
1315 | netif_rx (skb); | |
1316 | ||
1317 | } | |
1318 | } | |
1319 | ||
1320 | if (irqstat & OBOE_INT_TXUNDER) | |
1321 | { | |
1322 | printk (KERN_WARNING DRIVER_NAME ": tx fifo underflow\n"); | |
1323 | } | |
1324 | if (irqstat & OBOE_INT_RXOVER) | |
1325 | { | |
1326 | printk (KERN_WARNING DRIVER_NAME ": rx fifo overflow\n"); | |
1327 | } | |
1328 | /* This must be useful for something... */ | |
1329 | if (irqstat & OBOE_INT_SIP) | |
1330 | { | |
1331 | self->int_sip++; | |
a97a6f10 | 1332 | IRDA_DEBUG (1, "%s.sip:%x(%x)%x\n", __func__ |
1da177e4 LT |
1333 | ,self->int_sip,irqstat,self->txpending); |
1334 | } | |
1335 | return IRQ_HANDLED; | |
1336 | } | |
1337 | ||
1338 | ||
1339 | static int | |
1340 | toshoboe_net_open (struct net_device *dev) | |
1341 | { | |
1342 | struct toshoboe_cb *self; | |
1343 | unsigned long flags; | |
15e541fe | 1344 | int rc; |
1da177e4 | 1345 | |
a97a6f10 | 1346 | IRDA_DEBUG (4, "%s()\n", __func__); |
1da177e4 | 1347 | |
15e541fe | 1348 | self = netdev_priv(dev); |
1da177e4 LT |
1349 | |
1350 | if (self->async) | |
1351 | return -EBUSY; | |
1352 | ||
1353 | if (self->stopped) | |
1354 | return 0; | |
1355 | ||
15e541fe JG |
1356 | rc = request_irq (self->io.irq, toshoboe_interrupt, |
1357 | IRQF_SHARED | IRQF_DISABLED, dev->name, self); | |
1358 | if (rc) | |
1359 | return rc; | |
1da177e4 LT |
1360 | |
1361 | spin_lock_irqsave(&self->spinlock, flags); | |
1362 | toshoboe_startchip (self); | |
1363 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1364 | ||
1365 | /* Ready to play! */ | |
1366 | netif_start_queue(dev); | |
1367 | ||
1368 | /* | |
1369 | * Open new IrLAP layer instance, now that everything should be | |
1370 | * initialized properly | |
1371 | */ | |
1372 | self->irlap = irlap_open (dev, &self->qos, driver_name); | |
1373 | ||
1374 | self->irdad = 1; | |
1375 | ||
1376 | return 0; | |
1377 | } | |
1378 | ||
1379 | static int | |
1380 | toshoboe_net_close (struct net_device *dev) | |
1381 | { | |
1382 | struct toshoboe_cb *self; | |
1383 | ||
a97a6f10 | 1384 | IRDA_DEBUG (4, "%s()\n", __func__); |
1da177e4 LT |
1385 | |
1386 | IRDA_ASSERT (dev != NULL, return -1; ); | |
4cf1653a | 1387 | self = netdev_priv(dev); |
1da177e4 LT |
1388 | |
1389 | /* Stop device */ | |
1390 | netif_stop_queue(dev); | |
1391 | ||
1392 | /* Stop and remove instance of IrLAP */ | |
1393 | if (self->irlap) | |
1394 | irlap_close (self->irlap); | |
1395 | self->irlap = NULL; | |
1396 | ||
1397 | self->irdad = 0; | |
1398 | ||
1399 | free_irq (self->io.irq, (void *) self); | |
1400 | ||
1401 | if (!self->stopped) | |
1402 | { | |
1403 | toshoboe_stopchip (self); | |
1404 | } | |
1405 | ||
1406 | return 0; | |
1407 | } | |
1408 | ||
1409 | /* | |
1410 | * Function toshoboe_net_ioctl (dev, rq, cmd) | |
1411 | * | |
1412 | * Process IOCTL commands for this device | |
1413 | * | |
1414 | */ | |
1415 | static int | |
1416 | toshoboe_net_ioctl (struct net_device *dev, struct ifreq *rq, int cmd) | |
1417 | { | |
1418 | struct if_irda_req *irq = (struct if_irda_req *) rq; | |
1419 | struct toshoboe_cb *self; | |
1420 | unsigned long flags; | |
1421 | int ret = 0; | |
1422 | ||
1423 | IRDA_ASSERT (dev != NULL, return -1; ); | |
1424 | ||
4cf1653a | 1425 | self = netdev_priv(dev); |
1da177e4 LT |
1426 | |
1427 | IRDA_ASSERT (self != NULL, return -1; ); | |
1428 | ||
a97a6f10 | 1429 | IRDA_DEBUG (5, "%s(), %s, (cmd=0x%X)\n", __func__, dev->name, cmd); |
1da177e4 LT |
1430 | |
1431 | /* Disable interrupts & save flags */ | |
1432 | spin_lock_irqsave(&self->spinlock, flags); | |
1433 | ||
1434 | switch (cmd) | |
1435 | { | |
1436 | case SIOCSBANDWIDTH: /* Set bandwidth */ | |
1437 | /* This function will also be used by IrLAP to change the | |
1438 | * speed, so we still must allow for speed change within | |
1439 | * interrupt context. | |
1440 | */ | |
a97a6f10 | 1441 | IRDA_DEBUG (1, "%s(BANDWIDTH), %s, (%X/%ld\n", __func__ |
1da177e4 | 1442 | ,dev->name, INB (OBOE_STATUS), irq->ifr_baudrate ); |
ac7c98ec AM |
1443 | if (!in_interrupt () && !capable (CAP_NET_ADMIN)) { |
1444 | ret = -EPERM; | |
1445 | goto out; | |
1446 | } | |
1da177e4 LT |
1447 | |
1448 | /* self->speed=irq->ifr_baudrate; */ | |
1449 | /* toshoboe_setbaud(self); */ | |
1450 | /* Just change speed once - inserted by Paul Bristow */ | |
1451 | self->new_speed = irq->ifr_baudrate; | |
1452 | break; | |
1453 | case SIOCSMEDIABUSY: /* Set media busy */ | |
a97a6f10 | 1454 | IRDA_DEBUG (1, "%s(MEDIABUSY), %s, (%X/%x)\n", __func__ |
1da177e4 | 1455 | ,dev->name, INB (OBOE_STATUS), capable (CAP_NET_ADMIN) ); |
ac7c98ec AM |
1456 | if (!capable (CAP_NET_ADMIN)) { |
1457 | ret = -EPERM; | |
1458 | goto out; | |
1459 | } | |
1da177e4 LT |
1460 | irda_device_set_media_busy (self->netdev, TRUE); |
1461 | break; | |
1462 | case SIOCGRECEIVING: /* Check if we are receiving right now */ | |
1463 | irq->ifr_receiving = (INB (OBOE_STATUS) & OBOE_STATUS_RXBUSY) ? 1 : 0; | |
a97a6f10 | 1464 | IRDA_DEBUG (3, "%s(RECEIVING), %s, (%X/%x)\n", __func__ |
1da177e4 LT |
1465 | ,dev->name, INB (OBOE_STATUS), irq->ifr_receiving ); |
1466 | break; | |
1467 | default: | |
a97a6f10 | 1468 | IRDA_DEBUG (1, "%s(?), %s, (cmd=0x%X)\n", __func__, dev->name, cmd); |
1da177e4 LT |
1469 | ret = -EOPNOTSUPP; |
1470 | } | |
ac7c98ec | 1471 | out: |
1da177e4 LT |
1472 | spin_unlock_irqrestore(&self->spinlock, flags); |
1473 | return ret; | |
1474 | ||
1475 | } | |
1476 | ||
1477 | MODULE_DESCRIPTION("Toshiba OBOE IrDA Device Driver"); | |
1478 | MODULE_AUTHOR("James McKenzie <james@fishsoup.dhs.org>"); | |
1479 | MODULE_LICENSE("GPL"); | |
1480 | ||
1481 | module_param (max_baud, int, 0); | |
1482 | MODULE_PARM_DESC(max_baud, "Maximum baud rate"); | |
1483 | ||
1484 | #ifdef USE_PROBE | |
1485 | module_param (do_probe, bool, 0); | |
1486 | MODULE_PARM_DESC(do_probe, "Enable/disable chip probing and self-test"); | |
1487 | #endif | |
1488 | ||
1489 | static void | |
1490 | toshoboe_close (struct pci_dev *pci_dev) | |
1491 | { | |
1492 | int i; | |
1493 | struct toshoboe_cb *self = (struct toshoboe_cb*)pci_get_drvdata(pci_dev); | |
1494 | ||
a97a6f10 | 1495 | IRDA_DEBUG (4, "%s()\n", __func__); |
1da177e4 LT |
1496 | |
1497 | IRDA_ASSERT (self != NULL, return; ); | |
1498 | ||
1499 | if (!self->stopped) | |
1500 | { | |
1501 | toshoboe_stopchip (self); | |
1502 | } | |
1503 | ||
1504 | release_region (self->io.fir_base, self->io.fir_ext); | |
1505 | ||
1506 | for (i = 0; i < TX_SLOTS; ++i) | |
1507 | { | |
1508 | kfree (self->tx_bufs[i]); | |
1509 | self->tx_bufs[i] = NULL; | |
1510 | } | |
1511 | ||
1512 | for (i = 0; i < RX_SLOTS; ++i) | |
1513 | { | |
1514 | kfree (self->rx_bufs[i]); | |
1515 | self->rx_bufs[i] = NULL; | |
1516 | } | |
1517 | ||
1518 | unregister_netdev(self->netdev); | |
1519 | ||
1520 | kfree (self->ringbuf); | |
1521 | self->ringbuf = NULL; | |
1522 | self->ring = NULL; | |
1523 | ||
1524 | free_netdev(self->netdev); | |
1525 | } | |
1526 | ||
ddec2c89 SH |
1527 | static const struct net_device_ops toshoboe_netdev_ops = { |
1528 | .ndo_open = toshoboe_net_open, | |
1529 | .ndo_stop = toshoboe_net_close, | |
1530 | .ndo_start_xmit = toshoboe_hard_xmit, | |
1531 | .ndo_do_ioctl = toshoboe_net_ioctl, | |
1532 | }; | |
1533 | ||
1da177e4 LT |
1534 | static int |
1535 | toshoboe_open (struct pci_dev *pci_dev, const struct pci_device_id *pdid) | |
1536 | { | |
1537 | struct toshoboe_cb *self; | |
1538 | struct net_device *dev; | |
1539 | int i = 0; | |
1540 | int ok = 0; | |
1541 | int err; | |
1542 | ||
a97a6f10 | 1543 | IRDA_DEBUG (4, "%s()\n", __func__); |
1da177e4 LT |
1544 | |
1545 | if ((err=pci_enable_device(pci_dev))) | |
1546 | return err; | |
1547 | ||
1548 | dev = alloc_irdadev(sizeof (struct toshoboe_cb)); | |
1549 | if (dev == NULL) | |
1550 | { | |
1551 | printk (KERN_ERR DRIVER_NAME ": can't allocate memory for " | |
1552 | "IrDA control block\n"); | |
1553 | return -ENOMEM; | |
1554 | } | |
1555 | ||
4cf1653a | 1556 | self = netdev_priv(dev); |
1da177e4 LT |
1557 | self->netdev = dev; |
1558 | self->pdev = pci_dev; | |
1559 | self->base = pci_resource_start(pci_dev,0); | |
1560 | ||
1561 | self->io.fir_base = self->base; | |
1562 | self->io.fir_ext = OBOE_IO_EXTENT; | |
1563 | self->io.irq = pci_dev->irq; | |
1fb9df5d | 1564 | self->io.irqflags = IRQF_SHARED | IRQF_DISABLED; |
1da177e4 LT |
1565 | |
1566 | self->speed = self->io.speed = 9600; | |
1567 | self->async = 0; | |
1568 | ||
1569 | /* Lock the port that we need */ | |
1570 | if (NULL==request_region (self->io.fir_base, self->io.fir_ext, driver_name)) | |
1571 | { | |
1572 | printk (KERN_ERR DRIVER_NAME ": can't get iobase of 0x%03x\n" | |
1573 | ,self->io.fir_base); | |
1574 | err = -EBUSY; | |
1575 | goto freeself; | |
1576 | } | |
1577 | ||
1578 | spin_lock_init(&self->spinlock); | |
1579 | ||
1580 | irda_init_max_qos_capabilies (&self->qos); | |
1581 | self->qos.baud_rate.bits = 0; | |
1582 | ||
1583 | if (max_baud >= 2400) | |
1584 | self->qos.baud_rate.bits |= IR_2400; | |
1585 | /*if (max_baud>=4800) idev->qos.baud_rate.bits|=IR_4800; */ | |
1586 | if (max_baud >= 9600) | |
1587 | self->qos.baud_rate.bits |= IR_9600; | |
1588 | if (max_baud >= 19200) | |
1589 | self->qos.baud_rate.bits |= IR_19200; | |
1590 | if (max_baud >= 115200) | |
1591 | self->qos.baud_rate.bits |= IR_115200; | |
1592 | #ifdef USE_MIR | |
1593 | if (max_baud >= 1152000) | |
1594 | { | |
1595 | self->qos.baud_rate.bits |= IR_1152000; | |
1596 | } | |
1597 | #endif | |
1598 | if (max_baud >= 4000000) | |
1599 | { | |
1600 | self->qos.baud_rate.bits |= (IR_4000000 << 8); | |
1601 | } | |
1602 | ||
1603 | /*FIXME: work this out... */ | |
1604 | self->qos.min_turn_time.bits = 0xff; | |
1605 | ||
1606 | irda_qos_bits_to_value (&self->qos); | |
1607 | ||
1608 | /* Allocate twice the size to guarantee alignment */ | |
5cbded58 | 1609 | self->ringbuf = kmalloc(OBOE_RING_LEN << 1, GFP_KERNEL); |
1da177e4 LT |
1610 | if (!self->ringbuf) |
1611 | { | |
1612 | printk (KERN_ERR DRIVER_NAME ": can't allocate DMA buffers\n"); | |
1613 | err = -ENOMEM; | |
1614 | goto freeregion; | |
1615 | } | |
1616 | ||
1617 | #if (BITS_PER_LONG == 64) | |
1618 | #error broken on 64-bit: casts pointer to 32-bit, and then back to pointer. | |
1619 | #endif | |
1620 | ||
1621 | /*We need to align the taskfile on a taskfile size boundary */ | |
1622 | { | |
1623 | unsigned long addr; | |
1624 | ||
1625 | addr = (__u32) self->ringbuf; | |
1626 | addr &= ~(OBOE_RING_LEN - 1); | |
1627 | addr += OBOE_RING_LEN; | |
1628 | self->ring = (struct OboeRing *) addr; | |
1629 | } | |
1630 | ||
1631 | memset (self->ring, 0, OBOE_RING_LEN); | |
1632 | self->io.mem_base = (__u32) self->ring; | |
1633 | ||
1634 | ok = 1; | |
1635 | for (i = 0; i < TX_SLOTS; ++i) | |
1636 | { | |
1637 | self->tx_bufs[i] = kmalloc (TX_BUF_SZ, GFP_KERNEL); | |
1638 | if (!self->tx_bufs[i]) | |
1639 | ok = 0; | |
1640 | } | |
1641 | ||
1642 | for (i = 0; i < RX_SLOTS; ++i) | |
1643 | { | |
1644 | self->rx_bufs[i] = kmalloc (RX_BUF_SZ, GFP_KERNEL); | |
1645 | if (!self->rx_bufs[i]) | |
1646 | ok = 0; | |
1647 | } | |
1648 | ||
1649 | if (!ok) | |
1650 | { | |
1651 | printk (KERN_ERR DRIVER_NAME ": can't allocate rx/tx buffers\n"); | |
1652 | err = -ENOMEM; | |
1653 | goto freebufs; | |
1654 | } | |
1655 | ||
1656 | ||
1657 | #ifdef USE_PROBE | |
1658 | if (do_probe) | |
1659 | if (!toshoboe_probe (self)) | |
1660 | { | |
1661 | err = -ENODEV; | |
1662 | goto freebufs; | |
1663 | } | |
1664 | #endif | |
1665 | ||
1da177e4 | 1666 | SET_NETDEV_DEV(dev, &pci_dev->dev); |
ddec2c89 | 1667 | dev->netdev_ops = &toshoboe_netdev_ops; |
1da177e4 LT |
1668 | |
1669 | err = register_netdev(dev); | |
1670 | if (err) | |
1671 | { | |
1672 | printk (KERN_ERR DRIVER_NAME ": register_netdev() failed\n"); | |
1673 | err = -ENOMEM; | |
1674 | goto freebufs; | |
1675 | } | |
1676 | printk (KERN_INFO "IrDA: Registered device %s\n", dev->name); | |
1677 | ||
1678 | pci_set_drvdata(pci_dev,self); | |
1679 | ||
d4c3c075 | 1680 | printk (KERN_INFO DRIVER_NAME ": Using multiple tasks\n"); |
1da177e4 LT |
1681 | |
1682 | return 0; | |
1683 | ||
1684 | freebufs: | |
1685 | for (i = 0; i < TX_SLOTS; ++i) | |
b4558ea9 | 1686 | kfree (self->tx_bufs[i]); |
1da177e4 | 1687 | for (i = 0; i < RX_SLOTS; ++i) |
b4558ea9 | 1688 | kfree (self->rx_bufs[i]); |
1da177e4 LT |
1689 | kfree(self->ringbuf); |
1690 | ||
1691 | freeregion: | |
1692 | release_region (self->io.fir_base, self->io.fir_ext); | |
1693 | ||
1694 | freeself: | |
1695 | free_netdev(dev); | |
1696 | ||
1697 | return err; | |
1698 | } | |
1699 | ||
1700 | static int | |
1701 | toshoboe_gotosleep (struct pci_dev *pci_dev, pm_message_t crap) | |
1702 | { | |
1703 | struct toshoboe_cb *self = (struct toshoboe_cb*)pci_get_drvdata(pci_dev); | |
1704 | unsigned long flags; | |
1705 | int i = 10; | |
1706 | ||
a97a6f10 | 1707 | IRDA_DEBUG (4, "%s()\n", __func__); |
1da177e4 LT |
1708 | |
1709 | if (!self || self->stopped) | |
1710 | return 0; | |
1711 | ||
1712 | if ((!self->irdad) && (!self->async)) | |
1713 | return 0; | |
1714 | ||
1715 | /* Flush all packets */ | |
1716 | while ((i--) && (self->txpending)) | |
1717 | udelay (10000); | |
1718 | ||
1719 | spin_lock_irqsave(&self->spinlock, flags); | |
1720 | ||
1721 | toshoboe_stopchip (self); | |
1722 | self->stopped = 1; | |
1723 | self->txpending = 0; | |
1724 | ||
1725 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1726 | return 0; | |
1727 | } | |
1728 | ||
1729 | static int | |
1730 | toshoboe_wakeup (struct pci_dev *pci_dev) | |
1731 | { | |
1732 | struct toshoboe_cb *self = (struct toshoboe_cb*)pci_get_drvdata(pci_dev); | |
1733 | unsigned long flags; | |
1734 | ||
a97a6f10 | 1735 | IRDA_DEBUG (4, "%s()\n", __func__); |
1da177e4 LT |
1736 | |
1737 | if (!self || !self->stopped) | |
1738 | return 0; | |
1739 | ||
1740 | if ((!self->irdad) && (!self->async)) | |
1741 | return 0; | |
1742 | ||
1743 | spin_lock_irqsave(&self->spinlock, flags); | |
1744 | ||
1745 | toshoboe_startchip (self); | |
1746 | self->stopped = 0; | |
1747 | ||
1748 | netif_wake_queue(self->netdev); | |
1749 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1750 | return 0; | |
1751 | } | |
1752 | ||
1753 | static struct pci_driver donauboe_pci_driver = { | |
1754 | .name = "donauboe", | |
1755 | .id_table = toshoboe_pci_tbl, | |
1756 | .probe = toshoboe_open, | |
1757 | .remove = toshoboe_close, | |
1758 | .suspend = toshoboe_gotosleep, | |
1759 | .resume = toshoboe_wakeup | |
1760 | }; | |
1761 | ||
1762 | static int __init | |
1763 | donauboe_init (void) | |
1764 | { | |
a85d771e | 1765 | return pci_register_driver(&donauboe_pci_driver); |
1da177e4 LT |
1766 | } |
1767 | ||
1768 | static void __exit | |
1769 | donauboe_cleanup (void) | |
1770 | { | |
1771 | pci_unregister_driver(&donauboe_pci_driver); | |
1772 | } | |
1773 | ||
1774 | module_init(donauboe_init); | |
1775 | module_exit(donauboe_cleanup); |