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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 */ | |
25985edc | 59 | /* Strongly recommended, disable if the probe fails on your machine */ |
1da177e4 LT |
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> | |
a6b7a407 | 155 | #include <linux/interrupt.h> |
1da177e4 LT |
156 | #include <linux/pci.h> |
157 | #include <linux/rtnetlink.h> | |
158 | ||
1da177e4 LT |
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 | ||
9baa3c34 | 187 | static const struct pci_device_id toshoboe_pci_tbl[] = { |
1da177e4 LT |
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 | |
eb939922 | 199 | static bool do_probe = false; |
1da177e4 LT |
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 | ||
807540ba | 220 | return fcs.value == GOOD_FCS; |
1da177e4 LT |
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; | |
955a9d20 | 235 | pr_debug("%c%s\n", head, dump); |
1da177e4 LT |
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 | ||
1da177e4 LT |
248 | ringbase = INB (OBOE_RING_BASE0) << 10; |
249 | ringbase |= INB (OBOE_RING_BASE1) << 18; | |
250 | ringbase |= INB (OBOE_RING_BASE2) << 26; | |
251 | ||
252 | printk (KERN_ERR DRIVER_NAME ": Register dump:\n"); | |
253 | printk (KERN_ERR "Interrupts: Tx:%d Rx:%d TxUnder:%d RxOver:%d Sip:%d\n", | |
254 | self->int_tx, self->int_rx, self->int_txunder, self->int_rxover, | |
255 | self->int_sip); | |
256 | printk (KERN_ERR "RX %02x TX %02x RingBase %08x\n", | |
257 | INB (OBOE_RXSLOT), INB (OBOE_TXSLOT), ringbase); | |
258 | printk (KERN_ERR "RING_SIZE %02x IER %02x ISR %02x\n", | |
259 | INB (OBOE_RING_SIZE), INB (OBOE_IER), INB (OBOE_ISR)); | |
260 | printk (KERN_ERR "CONFIG1 %02x STATUS %02x\n", | |
261 | INB (OBOE_CONFIG1), INB (OBOE_STATUS)); | |
262 | printk (KERN_ERR "CONFIG0 %02x%02x ENABLE %02x%02x\n", | |
263 | INB (OBOE_CONFIG0H), INB (OBOE_CONFIG0L), | |
264 | INB (OBOE_ENABLEH), INB (OBOE_ENABLEL)); | |
265 | printk (KERN_ERR "NEW_PCONFIG %02x%02x CURR_PCONFIG %02x%02x\n", | |
266 | INB (OBOE_NEW_PCONFIGH), INB (OBOE_NEW_PCONFIGL), | |
267 | INB (OBOE_CURR_PCONFIGH), INB (OBOE_CURR_PCONFIGL)); | |
268 | printk (KERN_ERR "MAXLEN %02x%02x RXCOUNT %02x%02x\n", | |
269 | INB (OBOE_MAXLENH), INB (OBOE_MAXLENL), | |
270 | INB (OBOE_RXCOUNTL), INB (OBOE_RXCOUNTH)); | |
271 | ||
272 | if (self->ring) | |
273 | { | |
274 | int i; | |
275 | ringbase = virt_to_bus (self->ring); | |
276 | printk (KERN_ERR "Ring at %08x:\n", ringbase); | |
277 | printk (KERN_ERR "RX:"); | |
278 | for (i = 0; i < RX_SLOTS; ++i) | |
279 | printk (" (%d,%02x)",self->ring->rx[i].len,self->ring->rx[i].control); | |
280 | printk ("\n"); | |
281 | printk (KERN_ERR "TX:"); | |
282 | for (i = 0; i < RX_SLOTS; ++i) | |
283 | printk (" (%d,%02x)",self->ring->tx[i].len,self->ring->tx[i].control); | |
284 | printk ("\n"); | |
285 | } | |
286 | } | |
287 | #endif | |
288 | ||
289 | /*Don't let the chip look at memory */ | |
290 | static void | |
291 | toshoboe_disablebm (struct toshoboe_cb *self) | |
292 | { | |
293 | __u8 command; | |
1da177e4 LT |
294 | pci_read_config_byte (self->pdev, PCI_COMMAND, &command); |
295 | command &= ~PCI_COMMAND_MASTER; | |
296 | pci_write_config_byte (self->pdev, PCI_COMMAND, command); | |
297 | ||
298 | } | |
299 | ||
300 | /* Shutdown the chip and point the taskfile reg somewhere else */ | |
301 | static void | |
302 | toshoboe_stopchip (struct toshoboe_cb *self) | |
303 | { | |
1da177e4 LT |
304 | /*Disable interrupts */ |
305 | OUTB (0x0, OBOE_IER); | |
306 | /*Disable DMA, Disable Rx, Disable Tx */ | |
307 | OUTB (CONFIG0H_DMA_OFF, OBOE_CONFIG0H); | |
308 | /*Disable SIR MIR FIR, Tx and Rx */ | |
309 | OUTB (0x00, OBOE_ENABLEH); | |
310 | /*Point the ring somewhere safe */ | |
311 | OUTB (0x3f, OBOE_RING_BASE2); | |
312 | OUTB (0xff, OBOE_RING_BASE1); | |
313 | OUTB (0xff, OBOE_RING_BASE0); | |
314 | ||
315 | OUTB (RX_LEN >> 8, OBOE_MAXLENH); | |
316 | OUTB (RX_LEN & 0xff, OBOE_MAXLENL); | |
317 | ||
318 | /*Acknoledge any pending interrupts */ | |
319 | OUTB (0xff, OBOE_ISR); | |
320 | ||
321 | /*Why */ | |
322 | OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH); | |
323 | ||
324 | /*switch it off */ | |
325 | OUTB (OBOE_CONFIG1_OFF, OBOE_CONFIG1); | |
326 | ||
327 | toshoboe_disablebm (self); | |
328 | } | |
329 | ||
330 | /* Transmitter initialization */ | |
331 | static void | |
332 | toshoboe_start_DMA (struct toshoboe_cb *self, int opts) | |
333 | { | |
334 | OUTB (0x0, OBOE_ENABLEH); | |
335 | OUTB (CONFIG0H_DMA_ON | opts, OBOE_CONFIG0H); | |
336 | OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH); | |
337 | PROMPT; | |
338 | } | |
339 | ||
340 | /*Set the baud rate */ | |
341 | static void | |
342 | toshoboe_setbaud (struct toshoboe_cb *self) | |
343 | { | |
344 | __u16 pconfig = 0; | |
345 | __u8 config0l = 0; | |
346 | ||
955a9d20 | 347 | pr_debug("%s(%d/%d)\n", __func__, self->speed, self->io.speed); |
1da177e4 LT |
348 | |
349 | switch (self->speed) | |
350 | { | |
351 | case 2400: | |
352 | case 4800: | |
353 | case 9600: | |
354 | case 19200: | |
355 | case 38400: | |
356 | case 57600: | |
357 | case 115200: | |
358 | #ifdef USE_MIR | |
359 | case 1152000: | |
360 | #endif | |
361 | case 4000000: | |
362 | break; | |
363 | default: | |
364 | ||
365 | printk (KERN_ERR DRIVER_NAME ": switch to unsupported baudrate %d\n", | |
366 | self->speed); | |
367 | return; | |
368 | } | |
369 | ||
370 | switch (self->speed) | |
371 | { | |
372 | /* For SIR the preamble is done by adding XBOFs */ | |
373 | /* to the packet */ | |
374 | /* set to filtered SIR mode, filter looks for BOF and EOF */ | |
375 | case 2400: | |
376 | pconfig |= 47 << OBOE_PCONFIG_BAUDSHIFT; | |
377 | pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT; | |
378 | break; | |
379 | case 4800: | |
380 | pconfig |= 23 << OBOE_PCONFIG_BAUDSHIFT; | |
381 | pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT; | |
382 | break; | |
383 | case 9600: | |
384 | pconfig |= 11 << OBOE_PCONFIG_BAUDSHIFT; | |
385 | pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT; | |
386 | break; | |
387 | case 19200: | |
388 | pconfig |= 5 << OBOE_PCONFIG_BAUDSHIFT; | |
389 | pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT; | |
390 | break; | |
391 | case 38400: | |
392 | pconfig |= 2 << OBOE_PCONFIG_BAUDSHIFT; | |
393 | pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT; | |
394 | break; | |
395 | case 57600: | |
396 | pconfig |= 1 << OBOE_PCONFIG_BAUDSHIFT; | |
397 | pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT; | |
398 | break; | |
399 | case 115200: | |
400 | pconfig |= 0 << OBOE_PCONFIG_BAUDSHIFT; | |
401 | pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT; | |
402 | break; | |
403 | default: | |
404 | /*Set to packet based reception */ | |
405 | OUTB (RX_LEN >> 8, OBOE_MAXLENH); | |
406 | OUTB (RX_LEN & 0xff, OBOE_MAXLENL); | |
407 | break; | |
408 | } | |
409 | ||
410 | switch (self->speed) | |
411 | { | |
412 | case 2400: | |
413 | case 4800: | |
414 | case 9600: | |
415 | case 19200: | |
416 | case 38400: | |
417 | case 57600: | |
418 | case 115200: | |
419 | config0l = OBOE_CONFIG0L_ENSIR; | |
420 | if (self->async) | |
421 | { | |
422 | /*Set to character based reception */ | |
423 | /*System will lock if MAXLEN=0 */ | |
424 | /*so have to be careful */ | |
425 | OUTB (0x01, OBOE_MAXLENH); | |
426 | OUTB (0x01, OBOE_MAXLENL); | |
427 | OUTB (0x00, OBOE_MAXLENH); | |
428 | } | |
429 | else | |
430 | { | |
431 | /*Set to packet based reception */ | |
432 | config0l |= OBOE_CONFIG0L_ENSIRF; | |
433 | OUTB (RX_LEN >> 8, OBOE_MAXLENH); | |
434 | OUTB (RX_LEN & 0xff, OBOE_MAXLENL); | |
435 | } | |
436 | break; | |
437 | ||
438 | #ifdef USE_MIR | |
439 | /* MIR mode */ | |
440 | /* Set for 16 bit CRC and enable MIR */ | |
441 | /* Preamble now handled by the chip */ | |
442 | case 1152000: | |
443 | pconfig |= 0 << OBOE_PCONFIG_BAUDSHIFT; | |
444 | pconfig |= 8 << OBOE_PCONFIG_WIDTHSHIFT; | |
445 | pconfig |= 1 << OBOE_PCONFIG_PREAMBLESHIFT; | |
446 | config0l = OBOE_CONFIG0L_CRC16 | OBOE_CONFIG0L_ENMIR; | |
447 | break; | |
448 | #endif | |
449 | /* FIR mode */ | |
450 | /* Set for 32 bit CRC and enable FIR */ | |
451 | /* Preamble handled by the chip */ | |
452 | case 4000000: | |
453 | pconfig |= 0 << OBOE_PCONFIG_BAUDSHIFT; | |
454 | /* Documentation says 14, but toshiba use 15 in their drivers */ | |
455 | pconfig |= 15 << OBOE_PCONFIG_PREAMBLESHIFT; | |
456 | config0l = OBOE_CONFIG0L_ENFIR; | |
457 | break; | |
458 | } | |
459 | ||
460 | /* Copy into new PHY config buffer */ | |
461 | OUTBP (pconfig >> 8, OBOE_NEW_PCONFIGH); | |
462 | OUTB (pconfig & 0xff, OBOE_NEW_PCONFIGL); | |
463 | OUTB (config0l, OBOE_CONFIG0L); | |
464 | ||
465 | /* Now make OBOE copy from new PHY to current PHY */ | |
466 | OUTB (0x0, OBOE_ENABLEH); | |
467 | OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH); | |
468 | PROMPT; | |
469 | ||
470 | /* speed change executed */ | |
471 | self->new_speed = 0; | |
472 | self->io.speed = self->speed; | |
473 | } | |
474 | ||
475 | /*Let the chip look at memory */ | |
476 | static void | |
477 | toshoboe_enablebm (struct toshoboe_cb *self) | |
478 | { | |
1da177e4 LT |
479 | pci_set_master (self->pdev); |
480 | } | |
481 | ||
482 | /*setup the ring */ | |
483 | static void | |
484 | toshoboe_initring (struct toshoboe_cb *self) | |
485 | { | |
486 | int i; | |
487 | ||
1da177e4 LT |
488 | for (i = 0; i < TX_SLOTS; ++i) |
489 | { | |
490 | self->ring->tx[i].len = 0; | |
491 | self->ring->tx[i].control = 0x00; | |
492 | self->ring->tx[i].address = virt_to_bus (self->tx_bufs[i]); | |
493 | } | |
494 | ||
495 | for (i = 0; i < RX_SLOTS; ++i) | |
496 | { | |
497 | self->ring->rx[i].len = RX_LEN; | |
498 | self->ring->rx[i].len = 0; | |
499 | self->ring->rx[i].address = virt_to_bus (self->rx_bufs[i]); | |
500 | self->ring->rx[i].control = OBOE_CTL_RX_HW_OWNS; | |
501 | } | |
502 | } | |
503 | ||
504 | static void | |
505 | toshoboe_resetptrs (struct toshoboe_cb *self) | |
506 | { | |
507 | /* Can reset pointers by twidling DMA */ | |
508 | OUTB (0x0, OBOE_ENABLEH); | |
509 | OUTBP (CONFIG0H_DMA_OFF, OBOE_CONFIG0H); | |
510 | OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH); | |
511 | ||
512 | self->rxs = inb_p (OBOE_RXSLOT) & OBOE_SLOT_MASK; | |
513 | self->txs = inb_p (OBOE_TXSLOT) & OBOE_SLOT_MASK; | |
514 | } | |
515 | ||
516 | /* Called in locked state */ | |
517 | static void | |
518 | toshoboe_initptrs (struct toshoboe_cb *self) | |
519 | { | |
520 | ||
521 | /* spin_lock_irqsave(self->spinlock, flags); */ | |
522 | /* save_flags (flags); */ | |
523 | ||
524 | /* Can reset pointers by twidling DMA */ | |
525 | toshoboe_resetptrs (self); | |
526 | ||
527 | OUTB (0x0, OBOE_ENABLEH); | |
528 | OUTB (CONFIG0H_DMA_ON, OBOE_CONFIG0H); | |
529 | OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH); | |
530 | ||
531 | self->txpending = 0; | |
532 | ||
533 | /* spin_unlock_irqrestore(self->spinlock, flags); */ | |
534 | /* restore_flags (flags); */ | |
535 | } | |
536 | ||
537 | /* Wake the chip up and get it looking at the rings */ | |
538 | /* Called in locked state */ | |
539 | static void | |
540 | toshoboe_startchip (struct toshoboe_cb *self) | |
541 | { | |
542 | __u32 physaddr; | |
543 | ||
1da177e4 LT |
544 | toshoboe_initring (self); |
545 | toshoboe_enablebm (self); | |
546 | OUTBP (OBOE_CONFIG1_RESET, OBOE_CONFIG1); | |
547 | OUTBP (OBOE_CONFIG1_ON, OBOE_CONFIG1); | |
548 | ||
549 | /* Stop the clocks */ | |
550 | OUTB (0, OBOE_ENABLEH); | |
551 | ||
552 | /*Set size of rings */ | |
553 | OUTB (RING_SIZE, OBOE_RING_SIZE); | |
554 | ||
555 | /*Acknoledge any pending interrupts */ | |
556 | OUTB (0xff, OBOE_ISR); | |
557 | ||
558 | /*Enable ints */ | |
559 | OUTB (OBOE_INT_TXDONE | OBOE_INT_RXDONE | | |
560 | OBOE_INT_TXUNDER | OBOE_INT_RXOVER | OBOE_INT_SIP , OBOE_IER); | |
561 | ||
562 | /*Acknoledge any pending interrupts */ | |
563 | OUTB (0xff, OBOE_ISR); | |
564 | ||
565 | /*Set the maximum packet length to 0xfff (4095) */ | |
566 | OUTB (RX_LEN >> 8, OBOE_MAXLENH); | |
567 | OUTB (RX_LEN & 0xff, OBOE_MAXLENL); | |
568 | ||
569 | /*Shutdown DMA */ | |
570 | OUTB (CONFIG0H_DMA_OFF, OBOE_CONFIG0H); | |
571 | ||
572 | /*Find out where the rings live */ | |
573 | physaddr = virt_to_bus (self->ring); | |
574 | ||
575 | IRDA_ASSERT ((physaddr & 0x3ff) == 0, | |
576 | printk (KERN_ERR DRIVER_NAME "ring not correctly aligned\n"); | |
577 | return;); | |
578 | ||
579 | OUTB ((physaddr >> 10) & 0xff, OBOE_RING_BASE0); | |
580 | OUTB ((physaddr >> 18) & 0xff, OBOE_RING_BASE1); | |
581 | OUTB ((physaddr >> 26) & 0x3f, OBOE_RING_BASE2); | |
582 | ||
3a4fa0a2 | 583 | /*Enable DMA controller in byte mode and RX */ |
1da177e4 LT |
584 | OUTB (CONFIG0H_DMA_ON, OBOE_CONFIG0H); |
585 | ||
586 | /* Start up the clocks */ | |
587 | OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH); | |
588 | ||
589 | /*set to sensible speed */ | |
590 | self->speed = 9600; | |
591 | toshoboe_setbaud (self); | |
592 | toshoboe_initptrs (self); | |
593 | } | |
594 | ||
595 | static void | |
596 | toshoboe_isntstuck (struct toshoboe_cb *self) | |
597 | { | |
598 | } | |
599 | ||
600 | static void | |
601 | toshoboe_checkstuck (struct toshoboe_cb *self) | |
602 | { | |
603 | unsigned long flags; | |
604 | ||
605 | if (0) | |
606 | { | |
607 | spin_lock_irqsave(&self->spinlock, flags); | |
608 | ||
609 | /* This will reset the chip completely */ | |
610 | printk (KERN_ERR DRIVER_NAME ": Resetting chip\n"); | |
611 | ||
612 | toshoboe_stopchip (self); | |
613 | toshoboe_startchip (self); | |
614 | spin_unlock_irqrestore(&self->spinlock, flags); | |
615 | } | |
616 | } | |
617 | ||
618 | /*Generate packet of about mtt us long */ | |
619 | static int | |
620 | toshoboe_makemttpacket (struct toshoboe_cb *self, void *buf, int mtt) | |
621 | { | |
622 | int xbofs; | |
623 | ||
624 | xbofs = ((int) (mtt/100)) * (int) (self->speed); | |
625 | xbofs=xbofs/80000; /*Eight bits per byte, and mtt is in us*/ | |
626 | xbofs++; | |
627 | ||
955a9d20 JP |
628 | pr_debug(DRIVER_NAME ": generated mtt of %d bytes for %d us at %d baud\n", |
629 | xbofs, mtt, self->speed); | |
1da177e4 LT |
630 | |
631 | if (xbofs > TX_LEN) | |
632 | { | |
633 | printk (KERN_ERR DRIVER_NAME ": wanted %d bytes MTT but TX_LEN is %d\n", | |
634 | xbofs, TX_LEN); | |
635 | xbofs = TX_LEN; | |
636 | } | |
637 | ||
638 | /*xbofs will do for SIR, MIR and FIR,SIR mode doesn't generate a checksum anyway */ | |
639 | memset (buf, XBOF, xbofs); | |
640 | ||
641 | return xbofs; | |
642 | } | |
643 | ||
1da177e4 LT |
644 | #ifdef USE_PROBE |
645 | /***********************************************************************/ | |
646 | /* Probe code */ | |
647 | ||
648 | static void | |
649 | toshoboe_dumptx (struct toshoboe_cb *self) | |
650 | { | |
651 | int i; | |
652 | PROBE_DEBUG(KERN_WARNING "TX:"); | |
653 | for (i = 0; i < RX_SLOTS; ++i) | |
654 | PROBE_DEBUG(" (%d,%02x)",self->ring->tx[i].len,self->ring->tx[i].control); | |
655 | PROBE_DEBUG(" [%d]\n",self->speed); | |
656 | } | |
657 | ||
658 | static void | |
659 | toshoboe_dumprx (struct toshoboe_cb *self, int score) | |
660 | { | |
661 | int i; | |
662 | PROBE_DEBUG(" %d\nRX:",score); | |
663 | for (i = 0; i < RX_SLOTS; ++i) | |
664 | PROBE_DEBUG(" (%d,%02x)",self->ring->rx[i].len,self->ring->rx[i].control); | |
665 | PROBE_DEBUG("\n"); | |
666 | } | |
667 | ||
668 | static inline int | |
669 | stuff_byte (__u8 byte, __u8 * buf) | |
670 | { | |
671 | switch (byte) | |
672 | { | |
673 | case BOF: /* FALLTHROUGH */ | |
674 | case EOF: /* FALLTHROUGH */ | |
675 | case CE: | |
676 | /* Insert transparently coded */ | |
677 | buf[0] = CE; /* Send link escape */ | |
678 | buf[1] = byte ^ IRDA_TRANS; /* Complement bit 5 */ | |
679 | return 2; | |
680 | /* break; */ | |
681 | default: | |
682 | /* Non-special value, no transparency required */ | |
683 | buf[0] = byte; | |
684 | return 1; | |
685 | /* break; */ | |
686 | } | |
687 | } | |
688 | ||
689 | static irqreturn_t | |
7d12e780 | 690 | toshoboe_probeinterrupt (int irq, void *dev_id) |
1da177e4 | 691 | { |
c31f28e7 | 692 | struct toshoboe_cb *self = dev_id; |
1da177e4 LT |
693 | __u8 irqstat; |
694 | ||
1da177e4 LT |
695 | irqstat = INB (OBOE_ISR); |
696 | ||
697 | /* was it us */ | |
698 | if (!(irqstat & OBOE_INT_MASK)) | |
699 | return IRQ_NONE; | |
700 | ||
701 | /* Ack all the interrupts */ | |
702 | OUTB (irqstat, OBOE_ISR); | |
703 | ||
704 | if (irqstat & OBOE_INT_TXDONE) | |
705 | { | |
706 | int txp; | |
707 | ||
708 | self->int_tx++; | |
709 | PROBE_DEBUG("T"); | |
710 | ||
711 | txp = INB (OBOE_TXSLOT) & OBOE_SLOT_MASK; | |
712 | if (self->ring->tx[txp].control & OBOE_CTL_TX_HW_OWNS) | |
713 | { | |
714 | self->int_tx+=100; | |
715 | PROBE_DEBUG("S"); | |
716 | toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX | OBOE_CONFIG0H_LOOP); | |
717 | } | |
718 | } | |
719 | ||
720 | if (irqstat & OBOE_INT_RXDONE) { | |
721 | self->int_rx++; | |
722 | PROBE_DEBUG("R"); } | |
723 | if (irqstat & OBOE_INT_TXUNDER) { | |
724 | self->int_txunder++; | |
725 | PROBE_DEBUG("U"); } | |
726 | if (irqstat & OBOE_INT_RXOVER) { | |
727 | self->int_rxover++; | |
728 | PROBE_DEBUG("O"); } | |
729 | if (irqstat & OBOE_INT_SIP) { | |
730 | self->int_sip++; | |
731 | PROBE_DEBUG("I"); } | |
732 | return IRQ_HANDLED; | |
733 | } | |
734 | ||
735 | static int | |
736 | toshoboe_maketestpacket (unsigned char *buf, int badcrc, int fir) | |
737 | { | |
738 | int i; | |
739 | int len = 0; | |
740 | union | |
741 | { | |
742 | __u16 value; | |
743 | __u8 bytes[2]; | |
744 | } | |
745 | fcs; | |
746 | ||
747 | if (fir) | |
748 | { | |
749 | memset (buf, 0, TT_LEN); | |
807540ba | 750 | return TT_LEN; |
1da177e4 LT |
751 | } |
752 | ||
753 | fcs.value = INIT_FCS; | |
754 | ||
755 | memset (buf, XBOF, 10); | |
756 | len += 10; | |
757 | buf[len++] = BOF; | |
758 | ||
759 | for (i = 0; i < TT_LEN; ++i) | |
760 | { | |
761 | len += stuff_byte (i, buf + len); | |
762 | fcs.value = irda_fcs (fcs.value, i); | |
763 | } | |
764 | ||
765 | len += stuff_byte (fcs.bytes[0] ^ badcrc, buf + len); | |
766 | len += stuff_byte (fcs.bytes[1] ^ badcrc, buf + len); | |
767 | buf[len++] = EOF; | |
768 | len++; | |
769 | return len; | |
770 | } | |
771 | ||
772 | static int | |
773 | toshoboe_probefail (struct toshoboe_cb *self, char *msg) | |
774 | { | |
775 | printk (KERN_ERR DRIVER_NAME "probe(%d) failed %s\n",self-> speed, msg); | |
776 | toshoboe_dumpregs (self); | |
777 | toshoboe_stopchip (self); | |
778 | free_irq (self->io.irq, (void *) self); | |
779 | return 0; | |
780 | } | |
781 | ||
782 | static int | |
783 | toshoboe_numvalidrcvs (struct toshoboe_cb *self) | |
784 | { | |
785 | int i, ret = 0; | |
786 | for (i = 0; i < RX_SLOTS; ++i) | |
787 | if ((self->ring->rx[i].control & 0xe0) == 0) | |
788 | ret++; | |
789 | ||
790 | return ret; | |
791 | } | |
792 | ||
793 | static int | |
794 | toshoboe_numrcvs (struct toshoboe_cb *self) | |
795 | { | |
796 | int i, ret = 0; | |
797 | for (i = 0; i < RX_SLOTS; ++i) | |
798 | if (!(self->ring->rx[i].control & OBOE_CTL_RX_HW_OWNS)) | |
799 | ret++; | |
800 | ||
801 | return ret; | |
802 | } | |
803 | ||
804 | static int | |
805 | toshoboe_probe (struct toshoboe_cb *self) | |
806 | { | |
807 | int i, j, n; | |
808 | #ifdef USE_MIR | |
215faf9c | 809 | static const int bauds[] = { 9600, 115200, 4000000, 1152000 }; |
1da177e4 | 810 | #else |
215faf9c | 811 | static const int bauds[] = { 9600, 115200, 4000000 }; |
1da177e4 LT |
812 | #endif |
813 | unsigned long flags; | |
814 | ||
1da177e4 LT |
815 | if (request_irq (self->io.irq, toshoboe_probeinterrupt, |
816 | self->io.irqflags, "toshoboe", (void *) self)) | |
817 | { | |
818 | printk (KERN_ERR DRIVER_NAME ": probe failed to allocate irq %d\n", | |
819 | self->io.irq); | |
820 | return 0; | |
821 | } | |
822 | ||
823 | /* test 1: SIR filter and back to back */ | |
824 | ||
e9edda69 | 825 | for (j = 0; j < ARRAY_SIZE(bauds); ++j) |
1da177e4 LT |
826 | { |
827 | int fir = (j > 1); | |
828 | toshoboe_stopchip (self); | |
829 | ||
830 | ||
831 | spin_lock_irqsave(&self->spinlock, flags); | |
832 | /*Address is already setup */ | |
833 | toshoboe_startchip (self); | |
834 | self->int_rx = self->int_tx = 0; | |
835 | self->speed = bauds[j]; | |
836 | toshoboe_setbaud (self); | |
837 | toshoboe_initptrs (self); | |
838 | spin_unlock_irqrestore(&self->spinlock, flags); | |
839 | ||
840 | self->ring->tx[self->txs].control = | |
841 | /* (FIR only) OBOE_CTL_TX_SIP needed for switching to next slot */ | |
842 | /* MIR: all received data is stored in one slot */ | |
843 | (fir) ? OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX | |
844 | : OBOE_CTL_TX_HW_OWNS ; | |
845 | self->ring->tx[self->txs].len = | |
846 | toshoboe_maketestpacket (self->tx_bufs[self->txs], 0, fir); | |
847 | self->txs++; | |
848 | self->txs %= TX_SLOTS; | |
849 | ||
850 | self->ring->tx[self->txs].control = | |
851 | (fir) ? OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_SIP | |
852 | : OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX ; | |
853 | self->ring->tx[self->txs].len = | |
854 | toshoboe_maketestpacket (self->tx_bufs[self->txs], 0, fir); | |
855 | self->txs++; | |
856 | self->txs %= TX_SLOTS; | |
857 | ||
858 | self->ring->tx[self->txs].control = | |
859 | (fir) ? OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX | |
860 | : OBOE_CTL_TX_HW_OWNS ; | |
861 | self->ring->tx[self->txs].len = | |
862 | toshoboe_maketestpacket (self->tx_bufs[self->txs], 0, fir); | |
863 | self->txs++; | |
864 | self->txs %= TX_SLOTS; | |
865 | ||
866 | self->ring->tx[self->txs].control = | |
867 | (fir) ? OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX | |
868 | | OBOE_CTL_TX_SIP | OBOE_CTL_TX_BAD_CRC | |
869 | : OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX ; | |
870 | self->ring->tx[self->txs].len = | |
871 | toshoboe_maketestpacket (self->tx_bufs[self->txs], 0, fir); | |
872 | self->txs++; | |
873 | self->txs %= TX_SLOTS; | |
874 | ||
875 | toshoboe_dumptx (self); | |
876 | /* Turn on TX and RX and loopback */ | |
877 | toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX | OBOE_CONFIG0H_LOOP); | |
878 | ||
879 | i = 0; | |
880 | n = fir ? 1 : 4; | |
881 | while (toshoboe_numvalidrcvs (self) != n) | |
882 | { | |
883 | if (i > 4800) | |
884 | return toshoboe_probefail (self, "filter test"); | |
885 | udelay ((9600*(TT_LEN+16))/self->speed); | |
886 | i++; | |
887 | } | |
888 | ||
889 | n = fir ? 203 : 102; | |
890 | while ((toshoboe_numrcvs(self) != self->int_rx) || (self->int_tx != n)) | |
891 | { | |
892 | if (i > 4800) | |
893 | return toshoboe_probefail (self, "interrupt test"); | |
894 | udelay ((9600*(TT_LEN+16))/self->speed); | |
895 | i++; | |
896 | } | |
897 | toshoboe_dumprx (self,i); | |
898 | ||
899 | } | |
900 | ||
901 | /* test 2: SIR in char at a time */ | |
902 | ||
903 | toshoboe_stopchip (self); | |
904 | self->int_rx = self->int_tx = 0; | |
905 | ||
906 | spin_lock_irqsave(&self->spinlock, flags); | |
907 | toshoboe_startchip (self); | |
908 | spin_unlock_irqrestore(&self->spinlock, flags); | |
909 | ||
910 | self->async = 1; | |
911 | self->speed = 115200; | |
912 | toshoboe_setbaud (self); | |
913 | self->ring->tx[self->txs].control = | |
914 | OBOE_CTL_TX_RTCENTX | OBOE_CTL_TX_HW_OWNS; | |
915 | self->ring->tx[self->txs].len = 4; | |
916 | ||
917 | ((unsigned char *) self->tx_bufs[self->txs])[0] = 'f'; | |
918 | ((unsigned char *) self->tx_bufs[self->txs])[1] = 'i'; | |
919 | ((unsigned char *) self->tx_bufs[self->txs])[2] = 's'; | |
920 | ((unsigned char *) self->tx_bufs[self->txs])[3] = 'h'; | |
921 | toshoboe_dumptx (self); | |
922 | toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX | OBOE_CONFIG0H_LOOP); | |
923 | ||
924 | i = 0; | |
925 | while (toshoboe_numvalidrcvs (self) != 4) | |
926 | { | |
927 | if (i > 100) | |
928 | return toshoboe_probefail (self, "Async test"); | |
929 | udelay (100); | |
930 | i++; | |
931 | } | |
932 | ||
933 | while ((toshoboe_numrcvs (self) != self->int_rx) || (self->int_tx != 1)) | |
934 | { | |
935 | if (i > 100) | |
936 | return toshoboe_probefail (self, "Async interrupt test"); | |
937 | udelay (100); | |
938 | i++; | |
939 | } | |
940 | toshoboe_dumprx (self,i); | |
941 | ||
942 | self->async = 0; | |
943 | self->speed = 9600; | |
944 | toshoboe_setbaud (self); | |
945 | toshoboe_stopchip (self); | |
946 | ||
947 | free_irq (self->io.irq, (void *) self); | |
948 | ||
949 | printk (KERN_WARNING DRIVER_NAME ": Self test passed ok\n"); | |
950 | ||
951 | return 1; | |
952 | } | |
953 | #endif | |
954 | ||
955 | /******************************************************************/ | |
956 | /* Netdev style code */ | |
957 | ||
958 | /* Transmit something */ | |
6518bbb8 | 959 | static netdev_tx_t |
1da177e4 LT |
960 | toshoboe_hard_xmit (struct sk_buff *skb, struct net_device *dev) |
961 | { | |
962 | struct toshoboe_cb *self; | |
963 | __s32 speed; | |
964 | int mtt, len, ctl; | |
965 | unsigned long flags; | |
966 | struct irda_skb_cb *cb = (struct irda_skb_cb *) skb->cb; | |
967 | ||
4cf1653a | 968 | self = netdev_priv(dev); |
1da177e4 | 969 | |
ec634fe3 | 970 | IRDA_ASSERT (self != NULL, return NETDEV_TX_OK; ); |
1da177e4 | 971 | |
955a9d20 JP |
972 | pr_debug("%s.tx:%x(%x)%x\n", |
973 | __func__, skb->len, self->txpending, INB(OBOE_ENABLEH)); | |
1da177e4 | 974 | if (!cb->magic) { |
955a9d20 | 975 | pr_debug("%s.Not IrLAP:%x\n", __func__, cb->magic); |
1da177e4 LT |
976 | #ifdef DUMP_PACKETS |
977 | _dumpbufs(skb->data,skb->len,'>'); | |
978 | #endif | |
979 | } | |
980 | ||
981 | /* change speed pending, wait for its execution */ | |
982 | if (self->new_speed) | |
4bd73ae2 | 983 | return NETDEV_TX_BUSY; |
1da177e4 LT |
984 | |
985 | /* device stopped (apm) wait for restart */ | |
986 | if (self->stopped) | |
4bd73ae2 | 987 | return NETDEV_TX_BUSY; |
1da177e4 LT |
988 | |
989 | toshoboe_checkstuck (self); | |
990 | ||
1da177e4 LT |
991 | /* Check if we need to change the speed */ |
992 | /* But not now. Wait after transmission if mtt not required */ | |
993 | speed=irda_get_next_speed(skb); | |
994 | if ((speed != self->io.speed) && (speed != -1)) | |
995 | { | |
996 | spin_lock_irqsave(&self->spinlock, flags); | |
997 | ||
998 | if (self->txpending || skb->len) | |
999 | { | |
1000 | self->new_speed = speed; | |
955a9d20 JP |
1001 | pr_debug("%s: Queued TxDone scheduled speed change %d\n" , |
1002 | __func__, speed); | |
1da177e4 LT |
1003 | /* if no data, that's all! */ |
1004 | if (!skb->len) | |
1005 | { | |
1006 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1007 | dev_kfree_skb (skb); | |
6ed10654 | 1008 | return NETDEV_TX_OK; |
1da177e4 LT |
1009 | } |
1010 | /* True packet, go on, but */ | |
1011 | /* do not accept anything before change speed execution */ | |
1012 | netif_stop_queue(dev); | |
1013 | /* ready to process TxDone interrupt */ | |
1014 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1015 | } | |
1016 | else | |
1017 | { | |
1018 | /* idle and no data, change speed now */ | |
1019 | self->speed = speed; | |
1020 | toshoboe_setbaud (self); | |
1021 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1022 | dev_kfree_skb (skb); | |
6ed10654 | 1023 | return NETDEV_TX_OK; |
1da177e4 LT |
1024 | } |
1025 | ||
1026 | } | |
1027 | ||
1028 | if ((mtt = irda_get_mtt(skb))) | |
1029 | { | |
1030 | /* This is fair since the queue should be empty anyway */ | |
1031 | spin_lock_irqsave(&self->spinlock, flags); | |
1032 | ||
1033 | if (self->txpending) | |
1034 | { | |
1035 | spin_unlock_irqrestore(&self->spinlock, flags); | |
4bd73ae2 | 1036 | return NETDEV_TX_BUSY; |
1da177e4 LT |
1037 | } |
1038 | ||
1039 | /* If in SIR mode we need to generate a string of XBOFs */ | |
1040 | /* In MIR and FIR we need to generate a string of data */ | |
1041 | /* which we will add a wrong checksum to */ | |
1042 | ||
1043 | mtt = toshoboe_makemttpacket (self, self->tx_bufs[self->txs], mtt); | |
955a9d20 | 1044 | pr_debug("%s.mtt:%x(%x)%d\n", __func__, skb->len, mtt, self->txpending); |
1da177e4 LT |
1045 | if (mtt) |
1046 | { | |
1047 | self->ring->tx[self->txs].len = mtt & 0xfff; | |
1048 | ||
1049 | ctl = OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX; | |
1050 | if (INB (OBOE_ENABLEH) & OBOE_ENABLEH_FIRON) | |
1051 | { | |
1052 | ctl |= OBOE_CTL_TX_BAD_CRC | OBOE_CTL_TX_SIP ; | |
1053 | } | |
1054 | #ifdef USE_MIR | |
1055 | else if (INB (OBOE_ENABLEH) & OBOE_ENABLEH_MIRON) | |
1056 | { | |
1057 | ctl |= OBOE_CTL_TX_BAD_CRC; | |
1058 | } | |
1059 | #endif | |
1060 | self->ring->tx[self->txs].control = ctl; | |
1061 | ||
1062 | OUTB (0x0, OBOE_ENABLEH); | |
1063 | /* It is only a timer. Do not send mtt packet outside! */ | |
1064 | toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX | OBOE_CONFIG0H_LOOP); | |
1065 | ||
1066 | self->txpending++; | |
1067 | ||
1068 | self->txs++; | |
1069 | self->txs %= TX_SLOTS; | |
1070 | ||
1071 | } | |
1072 | else | |
1073 | { | |
1074 | printk(KERN_ERR DRIVER_NAME ": problem with mtt packet - ignored\n"); | |
1075 | } | |
1076 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1077 | } | |
1078 | ||
1079 | #ifdef DUMP_PACKETS | |
1080 | dumpbufs(skb->data,skb->len,'>'); | |
1081 | #endif | |
1082 | ||
1083 | spin_lock_irqsave(&self->spinlock, flags); | |
1084 | ||
1085 | if (self->ring->tx[self->txs].control & OBOE_CTL_TX_HW_OWNS) | |
1086 | { | |
955a9d20 JP |
1087 | pr_debug("%s.ful:%x(%x)%x\n", |
1088 | __func__, skb->len, self->ring->tx[self->txs].control, | |
1089 | self->txpending); | |
1da177e4 LT |
1090 | toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX); |
1091 | spin_unlock_irqrestore(&self->spinlock, flags); | |
4bd73ae2 | 1092 | return NETDEV_TX_BUSY; |
1da177e4 LT |
1093 | } |
1094 | ||
1095 | if (INB (OBOE_ENABLEH) & OBOE_ENABLEH_SIRON) | |
1096 | { | |
1097 | len = async_wrap_skb (skb, self->tx_bufs[self->txs], TX_BUF_SZ); | |
1098 | } | |
1099 | else | |
1100 | { | |
1101 | len = skb->len; | |
d626f62b | 1102 | skb_copy_from_linear_data(skb, self->tx_bufs[self->txs], len); |
1da177e4 LT |
1103 | } |
1104 | self->ring->tx[self->txs].len = len & 0x0fff; | |
1105 | ||
1106 | /*Sometimes the HW doesn't see us assert RTCENTX in the interrupt code */ | |
1107 | /*later this plays safe, we garuntee the last packet to be transmitted */ | |
1108 | /*has RTCENTX set */ | |
1109 | ||
1110 | ctl = OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX; | |
1111 | if (INB (OBOE_ENABLEH) & OBOE_ENABLEH_FIRON) | |
1112 | { | |
1113 | ctl |= OBOE_CTL_TX_SIP ; | |
1114 | } | |
1115 | self->ring->tx[self->txs].control = ctl; | |
1116 | ||
1117 | /* If transmitter is idle start in one-shot mode */ | |
1118 | ||
1119 | if (!self->txpending) | |
1120 | toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX); | |
1121 | ||
1122 | self->txpending++; | |
1123 | ||
1124 | self->txs++; | |
1125 | self->txs %= TX_SLOTS; | |
1126 | ||
1127 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1128 | dev_kfree_skb (skb); | |
1129 | ||
6ed10654 | 1130 | return NETDEV_TX_OK; |
1da177e4 LT |
1131 | } |
1132 | ||
1133 | /*interrupt handler */ | |
1134 | static irqreturn_t | |
7d12e780 | 1135 | toshoboe_interrupt (int irq, void *dev_id) |
1da177e4 | 1136 | { |
15e541fe | 1137 | struct toshoboe_cb *self = dev_id; |
1da177e4 LT |
1138 | __u8 irqstat; |
1139 | struct sk_buff *skb = NULL; | |
1140 | ||
1da177e4 LT |
1141 | irqstat = INB (OBOE_ISR); |
1142 | ||
1143 | /* was it us */ | |
1144 | if (!(irqstat & OBOE_INT_MASK)) | |
1145 | return IRQ_NONE; | |
1146 | ||
1147 | /* Ack all the interrupts */ | |
1148 | OUTB (irqstat, OBOE_ISR); | |
1149 | ||
1150 | toshoboe_isntstuck (self); | |
1151 | ||
1152 | /* Txdone */ | |
1153 | if (irqstat & OBOE_INT_TXDONE) | |
1154 | { | |
1155 | int txp, txpc; | |
1156 | int i; | |
1157 | ||
1158 | txp = self->txpending; | |
1159 | self->txpending = 0; | |
1160 | ||
1161 | for (i = 0; i < TX_SLOTS; ++i) | |
1162 | { | |
1163 | if (self->ring->tx[i].control & OBOE_CTL_TX_HW_OWNS) | |
1164 | self->txpending++; | |
1165 | } | |
955a9d20 | 1166 | pr_debug("%s.txd(%x)%x/%x\n", __func__, irqstat, txp, self->txpending); |
1da177e4 LT |
1167 | |
1168 | txp = INB (OBOE_TXSLOT) & OBOE_SLOT_MASK; | |
1169 | ||
1170 | /* Got anything queued ? start it together */ | |
1171 | if (self->ring->tx[txp].control & OBOE_CTL_TX_HW_OWNS) | |
1172 | { | |
1173 | txpc = txp; | |
1174 | #ifdef OPTIMIZE_TX | |
1175 | while (self->ring->tx[txpc].control & OBOE_CTL_TX_HW_OWNS) | |
1176 | { | |
1177 | txp = txpc; | |
1178 | txpc++; | |
1179 | txpc %= TX_SLOTS; | |
216c32d4 | 1180 | self->netdev->stats.tx_packets++; |
1da177e4 LT |
1181 | if (self->ring->tx[txpc].control & OBOE_CTL_TX_HW_OWNS) |
1182 | self->ring->tx[txp].control &= ~OBOE_CTL_TX_RTCENTX; | |
1183 | } | |
216c32d4 | 1184 | self->netdev->stats.tx_packets--; |
1da177e4 | 1185 | #else |
216c32d4 | 1186 | self->netdev->stats.tx_packets++; |
1da177e4 LT |
1187 | #endif |
1188 | toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX); | |
1189 | } | |
1190 | ||
1191 | if ((!self->txpending) && (self->new_speed)) | |
1192 | { | |
1193 | self->speed = self->new_speed; | |
955a9d20 JP |
1194 | pr_debug("%s: Executed TxDone scheduled speed change %d\n", |
1195 | __func__, self->speed); | |
1da177e4 LT |
1196 | toshoboe_setbaud (self); |
1197 | } | |
1198 | ||
1199 | /* Tell network layer that we want more frames */ | |
1200 | if (!self->new_speed) | |
1201 | netif_wake_queue(self->netdev); | |
1202 | } | |
1203 | ||
1204 | if (irqstat & OBOE_INT_RXDONE) | |
1205 | { | |
1206 | while (!(self->ring->rx[self->rxs].control & OBOE_CTL_RX_HW_OWNS)) | |
1207 | { | |
1208 | int len = self->ring->rx[self->rxs].len; | |
1209 | skb = NULL; | |
955a9d20 JP |
1210 | pr_debug("%s.rcv:%x(%x)\n", __func__ |
1211 | , len, self->ring->rx[self->rxs].control); | |
1da177e4 LT |
1212 | |
1213 | #ifdef DUMP_PACKETS | |
1214 | dumpbufs(self->rx_bufs[self->rxs],len,'<'); | |
1215 | #endif | |
1216 | ||
1217 | if (self->ring->rx[self->rxs].control == 0) | |
1218 | { | |
1219 | __u8 enable = INB (OBOE_ENABLEH); | |
1220 | ||
1221 | /* In SIR mode we need to check the CRC as this */ | |
1222 | /* hasn't been done by the hardware */ | |
1223 | if (enable & OBOE_ENABLEH_SIRON) | |
1224 | { | |
1225 | if (!toshoboe_checkfcs (self->rx_bufs[self->rxs], len)) | |
1226 | len = 0; | |
1227 | /*Trim off the CRC */ | |
1228 | if (len > 1) | |
1229 | len -= 2; | |
1230 | else | |
1231 | len = 0; | |
955a9d20 | 1232 | pr_debug("%s.SIR:%x(%x)\n", __func__, len, enable); |
1da177e4 LT |
1233 | } |
1234 | ||
1235 | #ifdef USE_MIR | |
1236 | else if (enable & OBOE_ENABLEH_MIRON) | |
1237 | { | |
1238 | if (len > 1) | |
1239 | len -= 2; | |
1240 | else | |
1241 | len = 0; | |
955a9d20 | 1242 | pr_debug("%s.MIR:%x(%x)\n", __func__, len, enable); |
1da177e4 LT |
1243 | } |
1244 | #endif | |
1245 | else if (enable & OBOE_ENABLEH_FIRON) | |
1246 | { | |
1247 | if (len > 3) | |
1248 | len -= 4; /*FIXME: check this */ | |
1249 | else | |
1250 | len = 0; | |
955a9d20 | 1251 | pr_debug("%s.FIR:%x(%x)\n", __func__, len, enable); |
1da177e4 LT |
1252 | } |
1253 | else | |
955a9d20 | 1254 | pr_debug("%s.?IR:%x(%x)\n", __func__, len, enable); |
1da177e4 LT |
1255 | |
1256 | if (len) | |
1257 | { | |
1258 | skb = dev_alloc_skb (len + 1); | |
1259 | if (skb) | |
1260 | { | |
1261 | skb_reserve (skb, 1); | |
1262 | ||
1263 | skb_put (skb, len); | |
27d7ff46 ACM |
1264 | skb_copy_to_linear_data(skb, self->rx_bufs[self->rxs], |
1265 | len); | |
216c32d4 | 1266 | self->netdev->stats.rx_packets++; |
1da177e4 | 1267 | skb->dev = self->netdev; |
459a98ed | 1268 | skb_reset_mac_header(skb); |
1da177e4 LT |
1269 | skb->protocol = htons (ETH_P_IRDA); |
1270 | } | |
1271 | else | |
1272 | { | |
1273 | printk (KERN_INFO | |
1274 | "%s(), memory squeeze, dropping frame.\n", | |
a97a6f10 | 1275 | __func__); |
1da177e4 LT |
1276 | } |
1277 | } | |
1278 | } | |
1279 | else | |
1280 | { | |
1281 | /* TODO: =========================================== */ | |
1282 | /* if OBOE_CTL_RX_LENGTH, our buffers are too small */ | |
1283 | /* (MIR or FIR) data is lost. */ | |
1284 | /* (SIR) data is splitted in several slots. */ | |
1285 | /* we have to join all the received buffers received */ | |
1286 | /*in a large buffer before checking CRC. */ | |
955a9d20 JP |
1287 | pr_debug("%s.err:%x(%x)\n", __func__ |
1288 | , len, self->ring->rx[self->rxs].control); | |
1da177e4 LT |
1289 | } |
1290 | ||
1291 | self->ring->rx[self->rxs].len = 0x0; | |
1292 | self->ring->rx[self->rxs].control = OBOE_CTL_RX_HW_OWNS; | |
1293 | ||
1294 | self->rxs++; | |
1295 | self->rxs %= RX_SLOTS; | |
1296 | ||
1297 | if (skb) | |
1298 | netif_rx (skb); | |
1299 | ||
1300 | } | |
1301 | } | |
1302 | ||
1303 | if (irqstat & OBOE_INT_TXUNDER) | |
1304 | { | |
1305 | printk (KERN_WARNING DRIVER_NAME ": tx fifo underflow\n"); | |
1306 | } | |
1307 | if (irqstat & OBOE_INT_RXOVER) | |
1308 | { | |
1309 | printk (KERN_WARNING DRIVER_NAME ": rx fifo overflow\n"); | |
1310 | } | |
1311 | /* This must be useful for something... */ | |
1312 | if (irqstat & OBOE_INT_SIP) | |
1313 | { | |
1314 | self->int_sip++; | |
955a9d20 JP |
1315 | pr_debug("%s.sip:%x(%x)%x\n", |
1316 | __func__, self->int_sip, irqstat, self->txpending); | |
1da177e4 LT |
1317 | } |
1318 | return IRQ_HANDLED; | |
1319 | } | |
1320 | ||
1321 | ||
1322 | static int | |
1323 | toshoboe_net_open (struct net_device *dev) | |
1324 | { | |
1325 | struct toshoboe_cb *self; | |
1326 | unsigned long flags; | |
15e541fe | 1327 | int rc; |
1da177e4 | 1328 | |
15e541fe | 1329 | self = netdev_priv(dev); |
1da177e4 LT |
1330 | |
1331 | if (self->async) | |
1332 | return -EBUSY; | |
1333 | ||
1334 | if (self->stopped) | |
1335 | return 0; | |
1336 | ||
15e541fe | 1337 | rc = request_irq (self->io.irq, toshoboe_interrupt, |
2c20ae68 | 1338 | IRQF_SHARED, dev->name, self); |
15e541fe JG |
1339 | if (rc) |
1340 | return rc; | |
1da177e4 LT |
1341 | |
1342 | spin_lock_irqsave(&self->spinlock, flags); | |
1343 | toshoboe_startchip (self); | |
1344 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1345 | ||
1346 | /* Ready to play! */ | |
1347 | netif_start_queue(dev); | |
1348 | ||
1349 | /* | |
1350 | * Open new IrLAP layer instance, now that everything should be | |
1351 | * initialized properly | |
1352 | */ | |
1353 | self->irlap = irlap_open (dev, &self->qos, driver_name); | |
1354 | ||
1355 | self->irdad = 1; | |
1356 | ||
1357 | return 0; | |
1358 | } | |
1359 | ||
1360 | static int | |
1361 | toshoboe_net_close (struct net_device *dev) | |
1362 | { | |
1363 | struct toshoboe_cb *self; | |
1364 | ||
1da177e4 | 1365 | IRDA_ASSERT (dev != NULL, return -1; ); |
4cf1653a | 1366 | self = netdev_priv(dev); |
1da177e4 LT |
1367 | |
1368 | /* Stop device */ | |
1369 | netif_stop_queue(dev); | |
1370 | ||
1371 | /* Stop and remove instance of IrLAP */ | |
1372 | if (self->irlap) | |
1373 | irlap_close (self->irlap); | |
1374 | self->irlap = NULL; | |
1375 | ||
1376 | self->irdad = 0; | |
1377 | ||
1378 | free_irq (self->io.irq, (void *) self); | |
1379 | ||
1380 | if (!self->stopped) | |
1381 | { | |
1382 | toshoboe_stopchip (self); | |
1383 | } | |
1384 | ||
1385 | return 0; | |
1386 | } | |
1387 | ||
1388 | /* | |
1389 | * Function toshoboe_net_ioctl (dev, rq, cmd) | |
1390 | * | |
1391 | * Process IOCTL commands for this device | |
1392 | * | |
1393 | */ | |
1394 | static int | |
1395 | toshoboe_net_ioctl (struct net_device *dev, struct ifreq *rq, int cmd) | |
1396 | { | |
1397 | struct if_irda_req *irq = (struct if_irda_req *) rq; | |
1398 | struct toshoboe_cb *self; | |
1399 | unsigned long flags; | |
1400 | int ret = 0; | |
1401 | ||
1402 | IRDA_ASSERT (dev != NULL, return -1; ); | |
1403 | ||
4cf1653a | 1404 | self = netdev_priv(dev); |
1da177e4 LT |
1405 | |
1406 | IRDA_ASSERT (self != NULL, return -1; ); | |
1407 | ||
955a9d20 | 1408 | pr_debug("%s(), %s, (cmd=0x%X)\n", __func__, dev->name, cmd); |
1da177e4 LT |
1409 | |
1410 | /* Disable interrupts & save flags */ | |
1411 | spin_lock_irqsave(&self->spinlock, flags); | |
1412 | ||
1413 | switch (cmd) | |
1414 | { | |
1415 | case SIOCSBANDWIDTH: /* Set bandwidth */ | |
1416 | /* This function will also be used by IrLAP to change the | |
1417 | * speed, so we still must allow for speed change within | |
1418 | * interrupt context. | |
1419 | */ | |
955a9d20 JP |
1420 | pr_debug("%s(BANDWIDTH), %s, (%X/%ld\n", |
1421 | __func__, dev->name, INB(OBOE_STATUS), irq->ifr_baudrate); | |
ac7c98ec AM |
1422 | if (!in_interrupt () && !capable (CAP_NET_ADMIN)) { |
1423 | ret = -EPERM; | |
1424 | goto out; | |
1425 | } | |
1da177e4 LT |
1426 | |
1427 | /* self->speed=irq->ifr_baudrate; */ | |
1428 | /* toshoboe_setbaud(self); */ | |
1429 | /* Just change speed once - inserted by Paul Bristow */ | |
1430 | self->new_speed = irq->ifr_baudrate; | |
1431 | break; | |
1432 | case SIOCSMEDIABUSY: /* Set media busy */ | |
955a9d20 JP |
1433 | pr_debug("%s(MEDIABUSY), %s, (%X/%x)\n", |
1434 | __func__, dev->name, | |
1435 | INB(OBOE_STATUS), capable(CAP_NET_ADMIN)); | |
ac7c98ec AM |
1436 | if (!capable (CAP_NET_ADMIN)) { |
1437 | ret = -EPERM; | |
1438 | goto out; | |
1439 | } | |
1da177e4 LT |
1440 | irda_device_set_media_busy (self->netdev, TRUE); |
1441 | break; | |
1442 | case SIOCGRECEIVING: /* Check if we are receiving right now */ | |
1443 | irq->ifr_receiving = (INB (OBOE_STATUS) & OBOE_STATUS_RXBUSY) ? 1 : 0; | |
955a9d20 JP |
1444 | pr_debug("%s(RECEIVING), %s, (%X/%x)\n", |
1445 | __func__, dev->name, INB(OBOE_STATUS), irq->ifr_receiving); | |
1da177e4 LT |
1446 | break; |
1447 | default: | |
955a9d20 | 1448 | pr_debug("%s(?), %s, (cmd=0x%X)\n", __func__, dev->name, cmd); |
1da177e4 LT |
1449 | ret = -EOPNOTSUPP; |
1450 | } | |
ac7c98ec | 1451 | out: |
1da177e4 LT |
1452 | spin_unlock_irqrestore(&self->spinlock, flags); |
1453 | return ret; | |
1454 | ||
1455 | } | |
1456 | ||
1457 | MODULE_DESCRIPTION("Toshiba OBOE IrDA Device Driver"); | |
1458 | MODULE_AUTHOR("James McKenzie <james@fishsoup.dhs.org>"); | |
1459 | MODULE_LICENSE("GPL"); | |
1460 | ||
1461 | module_param (max_baud, int, 0); | |
1462 | MODULE_PARM_DESC(max_baud, "Maximum baud rate"); | |
1463 | ||
1464 | #ifdef USE_PROBE | |
1465 | module_param (do_probe, bool, 0); | |
1466 | MODULE_PARM_DESC(do_probe, "Enable/disable chip probing and self-test"); | |
1467 | #endif | |
1468 | ||
1469 | static void | |
1470 | toshoboe_close (struct pci_dev *pci_dev) | |
1471 | { | |
1472 | int i; | |
e015b443 | 1473 | struct toshoboe_cb *self = pci_get_drvdata(pci_dev); |
1da177e4 | 1474 | |
1da177e4 LT |
1475 | IRDA_ASSERT (self != NULL, return; ); |
1476 | ||
1477 | if (!self->stopped) | |
1478 | { | |
1479 | toshoboe_stopchip (self); | |
1480 | } | |
1481 | ||
1482 | release_region (self->io.fir_base, self->io.fir_ext); | |
1483 | ||
1484 | for (i = 0; i < TX_SLOTS; ++i) | |
1485 | { | |
1486 | kfree (self->tx_bufs[i]); | |
1487 | self->tx_bufs[i] = NULL; | |
1488 | } | |
1489 | ||
1490 | for (i = 0; i < RX_SLOTS; ++i) | |
1491 | { | |
1492 | kfree (self->rx_bufs[i]); | |
1493 | self->rx_bufs[i] = NULL; | |
1494 | } | |
1495 | ||
1496 | unregister_netdev(self->netdev); | |
1497 | ||
1498 | kfree (self->ringbuf); | |
1499 | self->ringbuf = NULL; | |
1500 | self->ring = NULL; | |
1501 | ||
1502 | free_netdev(self->netdev); | |
1503 | } | |
1504 | ||
ddec2c89 SH |
1505 | static const struct net_device_ops toshoboe_netdev_ops = { |
1506 | .ndo_open = toshoboe_net_open, | |
1507 | .ndo_stop = toshoboe_net_close, | |
1508 | .ndo_start_xmit = toshoboe_hard_xmit, | |
1509 | .ndo_do_ioctl = toshoboe_net_ioctl, | |
1510 | }; | |
1511 | ||
1da177e4 LT |
1512 | static int |
1513 | toshoboe_open (struct pci_dev *pci_dev, const struct pci_device_id *pdid) | |
1514 | { | |
1515 | struct toshoboe_cb *self; | |
1516 | struct net_device *dev; | |
1517 | int i = 0; | |
1518 | int ok = 0; | |
1519 | int err; | |
1520 | ||
1da177e4 LT |
1521 | if ((err=pci_enable_device(pci_dev))) |
1522 | return err; | |
1523 | ||
1524 | dev = alloc_irdadev(sizeof (struct toshoboe_cb)); | |
1525 | if (dev == NULL) | |
1526 | { | |
1527 | printk (KERN_ERR DRIVER_NAME ": can't allocate memory for " | |
1528 | "IrDA control block\n"); | |
1529 | return -ENOMEM; | |
1530 | } | |
1531 | ||
4cf1653a | 1532 | self = netdev_priv(dev); |
1da177e4 LT |
1533 | self->netdev = dev; |
1534 | self->pdev = pci_dev; | |
1535 | self->base = pci_resource_start(pci_dev,0); | |
1536 | ||
1537 | self->io.fir_base = self->base; | |
1538 | self->io.fir_ext = OBOE_IO_EXTENT; | |
1539 | self->io.irq = pci_dev->irq; | |
2c20ae68 | 1540 | self->io.irqflags = IRQF_SHARED; |
1da177e4 LT |
1541 | |
1542 | self->speed = self->io.speed = 9600; | |
1543 | self->async = 0; | |
1544 | ||
1545 | /* Lock the port that we need */ | |
1546 | if (NULL==request_region (self->io.fir_base, self->io.fir_ext, driver_name)) | |
1547 | { | |
1548 | printk (KERN_ERR DRIVER_NAME ": can't get iobase of 0x%03x\n" | |
1549 | ,self->io.fir_base); | |
1550 | err = -EBUSY; | |
1551 | goto freeself; | |
1552 | } | |
1553 | ||
1554 | spin_lock_init(&self->spinlock); | |
1555 | ||
1556 | irda_init_max_qos_capabilies (&self->qos); | |
1557 | self->qos.baud_rate.bits = 0; | |
1558 | ||
1559 | if (max_baud >= 2400) | |
1560 | self->qos.baud_rate.bits |= IR_2400; | |
1561 | /*if (max_baud>=4800) idev->qos.baud_rate.bits|=IR_4800; */ | |
1562 | if (max_baud >= 9600) | |
1563 | self->qos.baud_rate.bits |= IR_9600; | |
1564 | if (max_baud >= 19200) | |
1565 | self->qos.baud_rate.bits |= IR_19200; | |
1566 | if (max_baud >= 115200) | |
1567 | self->qos.baud_rate.bits |= IR_115200; | |
1568 | #ifdef USE_MIR | |
1569 | if (max_baud >= 1152000) | |
1570 | { | |
1571 | self->qos.baud_rate.bits |= IR_1152000; | |
1572 | } | |
1573 | #endif | |
1574 | if (max_baud >= 4000000) | |
1575 | { | |
1576 | self->qos.baud_rate.bits |= (IR_4000000 << 8); | |
1577 | } | |
1578 | ||
1579 | /*FIXME: work this out... */ | |
1580 | self->qos.min_turn_time.bits = 0xff; | |
1581 | ||
1582 | irda_qos_bits_to_value (&self->qos); | |
1583 | ||
1584 | /* Allocate twice the size to guarantee alignment */ | |
5cbded58 | 1585 | self->ringbuf = kmalloc(OBOE_RING_LEN << 1, GFP_KERNEL); |
1da177e4 LT |
1586 | if (!self->ringbuf) |
1587 | { | |
1da177e4 LT |
1588 | err = -ENOMEM; |
1589 | goto freeregion; | |
1590 | } | |
1591 | ||
1592 | #if (BITS_PER_LONG == 64) | |
1593 | #error broken on 64-bit: casts pointer to 32-bit, and then back to pointer. | |
1594 | #endif | |
1595 | ||
1596 | /*We need to align the taskfile on a taskfile size boundary */ | |
1597 | { | |
1598 | unsigned long addr; | |
1599 | ||
1600 | addr = (__u32) self->ringbuf; | |
1601 | addr &= ~(OBOE_RING_LEN - 1); | |
1602 | addr += OBOE_RING_LEN; | |
1603 | self->ring = (struct OboeRing *) addr; | |
1604 | } | |
1605 | ||
1606 | memset (self->ring, 0, OBOE_RING_LEN); | |
1607 | self->io.mem_base = (__u32) self->ring; | |
1608 | ||
1609 | ok = 1; | |
1610 | for (i = 0; i < TX_SLOTS; ++i) | |
1611 | { | |
1612 | self->tx_bufs[i] = kmalloc (TX_BUF_SZ, GFP_KERNEL); | |
1613 | if (!self->tx_bufs[i]) | |
1614 | ok = 0; | |
1615 | } | |
1616 | ||
1617 | for (i = 0; i < RX_SLOTS; ++i) | |
1618 | { | |
1619 | self->rx_bufs[i] = kmalloc (RX_BUF_SZ, GFP_KERNEL); | |
1620 | if (!self->rx_bufs[i]) | |
1621 | ok = 0; | |
1622 | } | |
1623 | ||
1624 | if (!ok) | |
1625 | { | |
1da177e4 LT |
1626 | err = -ENOMEM; |
1627 | goto freebufs; | |
1628 | } | |
1629 | ||
1630 | ||
1631 | #ifdef USE_PROBE | |
1632 | if (do_probe) | |
1633 | if (!toshoboe_probe (self)) | |
1634 | { | |
1635 | err = -ENODEV; | |
1636 | goto freebufs; | |
1637 | } | |
1638 | #endif | |
1639 | ||
1da177e4 | 1640 | SET_NETDEV_DEV(dev, &pci_dev->dev); |
ddec2c89 | 1641 | dev->netdev_ops = &toshoboe_netdev_ops; |
1da177e4 LT |
1642 | |
1643 | err = register_netdev(dev); | |
1644 | if (err) | |
1645 | { | |
1646 | printk (KERN_ERR DRIVER_NAME ": register_netdev() failed\n"); | |
1647 | err = -ENOMEM; | |
1648 | goto freebufs; | |
1649 | } | |
1650 | printk (KERN_INFO "IrDA: Registered device %s\n", dev->name); | |
1651 | ||
1652 | pci_set_drvdata(pci_dev,self); | |
1653 | ||
d4c3c075 | 1654 | printk (KERN_INFO DRIVER_NAME ": Using multiple tasks\n"); |
1da177e4 LT |
1655 | |
1656 | return 0; | |
1657 | ||
1658 | freebufs: | |
1659 | for (i = 0; i < TX_SLOTS; ++i) | |
b4558ea9 | 1660 | kfree (self->tx_bufs[i]); |
1da177e4 | 1661 | for (i = 0; i < RX_SLOTS; ++i) |
b4558ea9 | 1662 | kfree (self->rx_bufs[i]); |
1da177e4 LT |
1663 | kfree(self->ringbuf); |
1664 | ||
1665 | freeregion: | |
1666 | release_region (self->io.fir_base, self->io.fir_ext); | |
1667 | ||
1668 | freeself: | |
1669 | free_netdev(dev); | |
1670 | ||
1671 | return err; | |
1672 | } | |
1673 | ||
1674 | static int | |
1675 | toshoboe_gotosleep (struct pci_dev *pci_dev, pm_message_t crap) | |
1676 | { | |
e015b443 | 1677 | struct toshoboe_cb *self = pci_get_drvdata(pci_dev); |
1da177e4 LT |
1678 | unsigned long flags; |
1679 | int i = 10; | |
1680 | ||
1da177e4 LT |
1681 | if (!self || self->stopped) |
1682 | return 0; | |
1683 | ||
1684 | if ((!self->irdad) && (!self->async)) | |
1685 | return 0; | |
1686 | ||
1687 | /* Flush all packets */ | |
1688 | while ((i--) && (self->txpending)) | |
32fd32a5 | 1689 | msleep(10); |
1da177e4 LT |
1690 | |
1691 | spin_lock_irqsave(&self->spinlock, flags); | |
1692 | ||
1693 | toshoboe_stopchip (self); | |
1694 | self->stopped = 1; | |
1695 | self->txpending = 0; | |
1696 | ||
1697 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1698 | return 0; | |
1699 | } | |
1700 | ||
1701 | static int | |
1702 | toshoboe_wakeup (struct pci_dev *pci_dev) | |
1703 | { | |
e015b443 | 1704 | struct toshoboe_cb *self = pci_get_drvdata(pci_dev); |
1da177e4 LT |
1705 | unsigned long flags; |
1706 | ||
1da177e4 LT |
1707 | if (!self || !self->stopped) |
1708 | return 0; | |
1709 | ||
1710 | if ((!self->irdad) && (!self->async)) | |
1711 | return 0; | |
1712 | ||
1713 | spin_lock_irqsave(&self->spinlock, flags); | |
1714 | ||
1715 | toshoboe_startchip (self); | |
1716 | self->stopped = 0; | |
1717 | ||
1718 | netif_wake_queue(self->netdev); | |
1719 | spin_unlock_irqrestore(&self->spinlock, flags); | |
1720 | return 0; | |
1721 | } | |
1722 | ||
1723 | static struct pci_driver donauboe_pci_driver = { | |
1724 | .name = "donauboe", | |
1725 | .id_table = toshoboe_pci_tbl, | |
1726 | .probe = toshoboe_open, | |
1727 | .remove = toshoboe_close, | |
1728 | .suspend = toshoboe_gotosleep, | |
1729 | .resume = toshoboe_wakeup | |
1730 | }; | |
1731 | ||
cd094927 | 1732 | module_pci_driver(donauboe_pci_driver); |