Version:  2.0.40 2.2.26 2.4.37 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16

Linux/drivers/tty/serial/8250/8250_pnp.c

  1 /*
  2  *  Probe for 8250/16550-type ISAPNP serial ports.
  3  *
  4  *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
  5  *
  6  *  Copyright (C) 2001 Russell King, All Rights Reserved.
  7  *
  8  *  Ported to the Linux PnP Layer - (C) Adam Belay.
  9  *
 10  * This program is free software; you can redistribute it and/or modify
 11  * it under the terms of the GNU General Public License as published by
 12  * the Free Software Foundation; either version 2 of the License.
 13  */
 14 #include <linux/module.h>
 15 #include <linux/pci.h>
 16 #include <linux/pnp.h>
 17 #include <linux/string.h>
 18 #include <linux/kernel.h>
 19 #include <linux/serial_core.h>
 20 #include <linux/bitops.h>
 21 
 22 #include <asm/byteorder.h>
 23 
 24 #include "8250.h"
 25 
 26 #define UNKNOWN_DEV 0x3000
 27 #define CIR_PORT        0x0800
 28 
 29 static const struct pnp_device_id pnp_dev_table[] = {
 30         /* Archtek America Corp. */
 31         /* Archtek SmartLink Modem 3334BT Plug & Play */
 32         {       "AAC000F",              0       },
 33         /* Anchor Datacomm BV */
 34         /* SXPro 144 External Data Fax Modem Plug & Play */
 35         {       "ADC0001",              0       },
 36         /* SXPro 288 External Data Fax Modem Plug & Play */
 37         {       "ADC0002",              0       },
 38         /* PROLiNK 1456VH ISA PnP K56flex Fax Modem */
 39         {       "AEI0250",              0       },
 40         /* Actiontec ISA PNP 56K X2 Fax Modem */
 41         {       "AEI1240",              0       },
 42         /* Rockwell 56K ACF II Fax+Data+Voice Modem */
 43         {       "AKY1021",              0 /*SPCI_FL_NO_SHIRQ*/  },
 44         /* AZT3005 PnP SOUND DEVICE */
 45         {       "AZT4001",              0       },
 46         /* Best Data Products Inc. Smart One 336F PnP Modem */
 47         {       "BDP3336",              0       },
 48         /*  Boca Research */
 49         /* Boca Complete Ofc Communicator 14.4 Data-FAX */
 50         {       "BRI0A49",              0       },
 51         /* Boca Research 33,600 ACF Modem */
 52         {       "BRI1400",              0       },
 53         /* Boca 33.6 Kbps Internal FD34FSVD */
 54         {       "BRI3400",              0       },
 55         /* Boca 33.6 Kbps Internal FD34FSVD */
 56         {       "BRI0A49",              0       },
 57         /* Best Data Products Inc. Smart One 336F PnP Modem */
 58         {       "BDP3336",              0       },
 59         /* Computer Peripherals Inc */
 60         /* EuroViVa CommCenter-33.6 SP PnP */
 61         {       "CPI4050",              0       },
 62         /* Creative Labs */
 63         /* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */
 64         {       "CTL3001",              0       },
 65         /* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
 66         {       "CTL3011",              0       },
 67         /* Davicom ISA 33.6K Modem */
 68         {       "DAV0336",              0       },
 69         /* Creative */
 70         /* Creative Modem Blaster Flash56 DI5601-1 */
 71         {       "DMB1032",              0       },
 72         /* Creative Modem Blaster V.90 DI5660 */
 73         {       "DMB2001",              0       },
 74         /* E-Tech */
 75         /* E-Tech CyberBULLET PC56RVP */
 76         {       "ETT0002",              0       },
 77         /* FUJITSU */
 78         /* Fujitsu 33600 PnP-I2 R Plug & Play */
 79         {       "FUJ0202",              0       },
 80         /* Fujitsu FMV-FX431 Plug & Play */
 81         {       "FUJ0205",              0       },
 82         /* Fujitsu 33600 PnP-I4 R Plug & Play */
 83         {       "FUJ0206",              0       },
 84         /* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */
 85         {       "FUJ0209",              0       },
 86         /* Archtek America Corp. */
 87         /* Archtek SmartLink Modem 3334BT Plug & Play */
 88         {       "GVC000F",              0       },
 89         /* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */
 90         {       "GVC0303",              0       },
 91         /* Hayes */
 92         /* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */
 93         {       "HAY0001",              0       },
 94         /* Hayes Optima 336 V.34 + FAX + Voice PnP */
 95         {       "HAY000C",              0       },
 96         /* Hayes Optima 336B V.34 + FAX + Voice PnP */
 97         {       "HAY000D",              0       },
 98         /* Hayes Accura 56K Ext Fax Modem PnP */
 99         {       "HAY5670",              0       },
100         /* Hayes Accura 56K Ext Fax Modem PnP */
101         {       "HAY5674",              0       },
102         /* Hayes Accura 56K Fax Modem PnP */
103         {       "HAY5675",              0       },
104         /* Hayes 288, V.34 + FAX */
105         {       "HAYF000",              0       },
106         /* Hayes Optima 288 V.34 + FAX + Voice, Plug & Play */
107         {       "HAYF001",              0       },
108         /* IBM */
109         /* IBM Thinkpad 701 Internal Modem Voice */
110         {       "IBM0033",              0       },
111         /* Intermec */
112         /* Intermec CV60 touchscreen port */
113         {       "PNP4972",              0       },
114         /* Intertex */
115         /* Intertex 28k8 33k6 Voice EXT PnP */
116         {       "IXDC801",              0       },
117         /* Intertex 33k6 56k Voice EXT PnP */
118         {       "IXDC901",              0       },
119         /* Intertex 28k8 33k6 Voice SP EXT PnP */
120         {       "IXDD801",              0       },
121         /* Intertex 33k6 56k Voice SP EXT PnP */
122         {       "IXDD901",              0       },
123         /* Intertex 28k8 33k6 Voice SP INT PnP */
124         {       "IXDF401",              0       },
125         /* Intertex 28k8 33k6 Voice SP EXT PnP */
126         {       "IXDF801",              0       },
127         /* Intertex 33k6 56k Voice SP EXT PnP */
128         {       "IXDF901",              0       },
129         /* Kortex International */
130         /* KORTEX 28800 Externe PnP */
131         {       "KOR4522",              0       },
132         /* KXPro 33.6 Vocal ASVD PnP */
133         {       "KORF661",              0       },
134         /* Lasat */
135         /* LASAT Internet 33600 PnP */
136         {       "LAS4040",              0       },
137         /* Lasat Safire 560 PnP */
138         {       "LAS4540",              0       },
139         /* Lasat Safire 336  PnP */
140         {       "LAS5440",              0       },
141         /* Microcom, Inc. */
142         /* Microcom TravelPorte FAST V.34 Plug & Play */
143         {       "MNP0281",              0       },
144         /* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */
145         {       "MNP0336",              0       },
146         /* Microcom DeskPorte FAST EP 28.8 Plug & Play */
147         {       "MNP0339",              0       },
148         /* Microcom DeskPorte 28.8P Plug & Play */
149         {       "MNP0342",              0       },
150         /* Microcom DeskPorte FAST ES 28.8 Plug & Play */
151         {       "MNP0500",              0       },
152         /* Microcom DeskPorte FAST ES 28.8 Plug & Play */
153         {       "MNP0501",              0       },
154         /* Microcom DeskPorte 28.8S Internal Plug & Play */
155         {       "MNP0502",              0       },
156         /* Motorola */
157         /* Motorola BitSURFR Plug & Play */
158         {       "MOT1105",              0       },
159         /* Motorola TA210 Plug & Play */
160         {       "MOT1111",              0       },
161         /* Motorola HMTA 200 (ISDN) Plug & Play */
162         {       "MOT1114",              0       },
163         /* Motorola BitSURFR Plug & Play */
164         {       "MOT1115",              0       },
165         /* Motorola Lifestyle 28.8 Internal */
166         {       "MOT1190",              0       },
167         /* Motorola V.3400 Plug & Play */
168         {       "MOT1501",              0       },
169         /* Motorola Lifestyle 28.8 V.34 Plug & Play */
170         {       "MOT1502",              0       },
171         /* Motorola Power 28.8 V.34 Plug & Play */
172         {       "MOT1505",              0       },
173         /* Motorola ModemSURFR External 28.8 Plug & Play */
174         {       "MOT1509",              0       },
175         /* Motorola Premier 33.6 Desktop Plug & Play */
176         {       "MOT150A",              0       },
177         /* Motorola VoiceSURFR 56K External PnP */
178         {       "MOT150F",              0       },
179         /* Motorola ModemSURFR 56K External PnP */
180         {       "MOT1510",              0       },
181         /* Motorola ModemSURFR 56K Internal PnP */
182         {       "MOT1550",              0       },
183         /* Motorola ModemSURFR Internal 28.8 Plug & Play */
184         {       "MOT1560",              0       },
185         /* Motorola Premier 33.6 Internal Plug & Play */
186         {       "MOT1580",              0       },
187         /* Motorola OnlineSURFR 28.8 Internal Plug & Play */
188         {       "MOT15B0",              0       },
189         /* Motorola VoiceSURFR 56K Internal PnP */
190         {       "MOT15F0",              0       },
191         /* Com 1 */
192         /*  Deskline K56 Phone System PnP */
193         {       "MVX00A1",              0       },
194         /* PC Rider K56 Phone System PnP */
195         {       "MVX00F2",              0       },
196         /* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */
197         {       "nEC8241",              0       },
198         /* Pace 56 Voice Internal Plug & Play Modem */
199         {       "PMC2430",              0       },
200         /* Generic */
201         /* Generic standard PC COM port  */
202         {       "PNP0500",              0       },
203         /* Generic 16550A-compatible COM port */
204         {       "PNP0501",              0       },
205         /* Compaq 14400 Modem */
206         {       "PNPC000",              0       },
207         /* Compaq 2400/9600 Modem */
208         {       "PNPC001",              0       },
209         /* Dial-Up Networking Serial Cable between 2 PCs */
210         {       "PNPC031",              0       },
211         /* Dial-Up Networking Parallel Cable between 2 PCs */
212         {       "PNPC032",              0       },
213         /* Standard 9600 bps Modem */
214         {       "PNPC100",              0       },
215         /* Standard 14400 bps Modem */
216         {       "PNPC101",              0       },
217         /*  Standard 28800 bps Modem*/
218         {       "PNPC102",              0       },
219         /*  Standard Modem*/
220         {       "PNPC103",              0       },
221         /*  Standard 9600 bps Modem*/
222         {       "PNPC104",              0       },
223         /*  Standard 14400 bps Modem*/
224         {       "PNPC105",              0       },
225         /*  Standard 28800 bps Modem*/
226         {       "PNPC106",              0       },
227         /*  Standard Modem */
228         {       "PNPC107",              0       },
229         /* Standard 9600 bps Modem */
230         {       "PNPC108",              0       },
231         /* Standard 14400 bps Modem */
232         {       "PNPC109",              0       },
233         /* Standard 28800 bps Modem */
234         {       "PNPC10A",              0       },
235         /* Standard Modem */
236         {       "PNPC10B",              0       },
237         /* Standard 9600 bps Modem */
238         {       "PNPC10C",              0       },
239         /* Standard 14400 bps Modem */
240         {       "PNPC10D",              0       },
241         /* Standard 28800 bps Modem */
242         {       "PNPC10E",              0       },
243         /* Standard Modem */
244         {       "PNPC10F",              0       },
245         /* Standard PCMCIA Card Modem */
246         {       "PNP2000",              0       },
247         /* Rockwell */
248         /* Modular Technology */
249         /* Rockwell 33.6 DPF Internal PnP */
250         /* Modular Technology 33.6 Internal PnP */
251         {       "ROK0030",              0       },
252         /* Kortex International */
253         /* KORTEX 14400 Externe PnP */
254         {       "ROK0100",              0       },
255         /* Rockwell 28.8 */
256         {       "ROK4120",              0       },
257         /* Viking Components, Inc */
258         /* Viking 28.8 INTERNAL Fax+Data+Voice PnP */
259         {       "ROK4920",              0       },
260         /* Rockwell */
261         /* British Telecom */
262         /* Modular Technology */
263         /* Rockwell 33.6 DPF External PnP */
264         /* BT Prologue 33.6 External PnP */
265         /* Modular Technology 33.6 External PnP */
266         {       "RSS00A0",              0       },
267         /* Viking 56K FAX INT */
268         {       "RSS0262",              0       },
269         /* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */
270         {       "RSS0250",              0       },
271         /* SupraExpress 28.8 Data/Fax PnP modem */
272         {       "SUP1310",              0       },
273         /* SupraExpress 336i PnP Voice Modem */
274         {       "SUP1381",              0       },
275         /* SupraExpress 33.6 Data/Fax PnP modem */
276         {       "SUP1421",              0       },
277         /* SupraExpress 33.6 Data/Fax PnP modem */
278         {       "SUP1590",              0       },
279         /* SupraExpress 336i Sp ASVD */
280         {       "SUP1620",              0       },
281         /* SupraExpress 33.6 Data/Fax PnP modem */
282         {       "SUP1760",              0       },
283         /* SupraExpress 56i Sp Intl */
284         {       "SUP2171",              0       },
285         /* Phoebe Micro */
286         /* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */
287         {       "TEX0011",              0       },
288         /* Archtek America Corp. */
289         /* Archtek SmartLink Modem 3334BT Plug & Play */
290         {       "UAC000F",              0       },
291         /* 3Com Corp. */
292         /* Gateway Telepath IIvi 33.6 */
293         {       "USR0000",              0       },
294         /* U.S. Robotics Sporster 33.6K Fax INT PnP */
295         {       "USR0002",              0       },
296         /*  Sportster Vi 14.4 PnP FAX Voicemail */
297         {       "USR0004",              0       },
298         /* U.S. Robotics 33.6K Voice INT PnP */
299         {       "USR0006",              0       },
300         /* U.S. Robotics 33.6K Voice EXT PnP */
301         {       "USR0007",              0       },
302         /* U.S. Robotics Courier V.Everything INT PnP */
303         {       "USR0009",              0       },
304         /* U.S. Robotics 33.6K Voice INT PnP */
305         {       "USR2002",              0       },
306         /* U.S. Robotics 56K Voice INT PnP */
307         {       "USR2070",              0       },
308         /* U.S. Robotics 56K Voice EXT PnP */
309         {       "USR2080",              0       },
310         /* U.S. Robotics 56K FAX INT */
311         {       "USR3031",              0       },
312         /* U.S. Robotics 56K FAX INT */
313         {       "USR3050",              0       },
314         /* U.S. Robotics 56K Voice INT PnP */
315         {       "USR3070",              0       },
316         /* U.S. Robotics 56K Voice EXT PnP */
317         {       "USR3080",              0       },
318         /* U.S. Robotics 56K Voice INT PnP */
319         {       "USR3090",              0       },
320         /* U.S. Robotics 56K Message  */
321         {       "USR9100",              0       },
322         /* U.S. Robotics 56K FAX EXT PnP*/
323         {       "USR9160",              0       },
324         /* U.S. Robotics 56K FAX INT PnP*/
325         {       "USR9170",              0       },
326         /* U.S. Robotics 56K Voice EXT PnP*/
327         {       "USR9180",              0       },
328         /* U.S. Robotics 56K Voice INT PnP*/
329         {       "USR9190",              0       },
330         /* Wacom tablets */
331         {       "WACFXXX",              0       },
332         /* Compaq touchscreen */
333         {       "FPI2002",              0 },
334         /* Fujitsu Stylistic touchscreens */
335         {       "FUJ02B2",              0 },
336         {       "FUJ02B3",              0 },
337         /* Fujitsu Stylistic LT touchscreens */
338         {       "FUJ02B4",              0 },
339         /* Passive Fujitsu Stylistic touchscreens */
340         {       "FUJ02B6",              0 },
341         {       "FUJ02B7",              0 },
342         {       "FUJ02B8",              0 },
343         {       "FUJ02B9",              0 },
344         {       "FUJ02BC",              0 },
345         /* Fujitsu Wacom Tablet PC device */
346         {       "FUJ02E5",              0       },
347         /* Fujitsu P-series tablet PC device */
348         {       "FUJ02E6",              0       },
349         /* Fujitsu Wacom 2FGT Tablet PC device */
350         {       "FUJ02E7",              0       },
351         /* Fujitsu Wacom 1FGT Tablet PC device */
352         {       "FUJ02E9",              0       },
353         /*
354          * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6 in
355          * disguise)
356          */
357         {       "LTS0001",              0       },
358         /* Rockwell's (PORALiNK) 33600 INT PNP */
359         {       "WCI0003",              0       },
360         /* Unknown PnP modems */
361         {       "PNPCXXX",              UNKNOWN_DEV     },
362         /* More unknown PnP modems */
363         {       "PNPDXXX",              UNKNOWN_DEV     },
364         /* Winbond CIR port, should not be probed. We should keep track
365            of it to prevent the legacy serial driver from probing it */
366         {       "WEC1022",              CIR_PORT        },
367         {       "",                     0       }
368 };
369 
370 MODULE_DEVICE_TABLE(pnp, pnp_dev_table);
371 
372 static char *modem_names[] = {
373         "MODEM", "Modem", "modem", "FAX", "Fax", "fax",
374         "56K", "56k", "K56", "33.6", "28.8", "14.4",
375         "33,600", "28,800", "14,400", "33.600", "28.800", "14.400",
376         "33600", "28800", "14400", "V.90", "V.34", "V.32", NULL
377 };
378 
379 static int check_name(char *name)
380 {
381         char **tmp;
382 
383         for (tmp = modem_names; *tmp; tmp++)
384                 if (strstr(name, *tmp))
385                         return 1;
386 
387         return 0;
388 }
389 
390 static int check_resources(struct pnp_dev *dev)
391 {
392         resource_size_t base[] = {0x2f8, 0x3f8, 0x2e8, 0x3e8};
393         int i;
394 
395         for (i = 0; i < ARRAY_SIZE(base); i++) {
396                 if (pnp_possible_config(dev, IORESOURCE_IO, base[i], 8))
397                         return 1;
398         }
399 
400         return 0;
401 }
402 
403 /*
404  * Given a complete unknown PnP device, try to use some heuristics to
405  * detect modems. Currently use such heuristic set:
406  *     - dev->name or dev->bus->name must contain "modem" substring;
407  *     - device must have only one IO region (8 byte long) with base address
408  *       0x2e8, 0x3e8, 0x2f8 or 0x3f8.
409  *
410  * Such detection looks very ugly, but can detect at least some of numerous
411  * PnP modems, alternatively we must hardcode all modems in pnp_devices[]
412  * table.
413  */
414 static int serial_pnp_guess_board(struct pnp_dev *dev)
415 {
416         if (!(check_name(pnp_dev_name(dev)) ||
417                 (dev->card && check_name(dev->card->name))))
418                         return -ENODEV;
419 
420         if (check_resources(dev))
421                 return 0;
422 
423         return -ENODEV;
424 }
425 
426 static int
427 serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
428 {
429         struct uart_8250_port uart;
430         int ret, line, flags = dev_id->driver_data;
431 
432         if (flags & UNKNOWN_DEV) {
433                 ret = serial_pnp_guess_board(dev);
434                 if (ret < 0)
435                         return ret;
436         }
437 
438         memset(&uart, 0, sizeof(uart));
439         if (pnp_irq_valid(dev, 0))
440                 uart.port.irq = pnp_irq(dev, 0);
441         if ((flags & CIR_PORT) && pnp_port_valid(dev, 2)) {
442                 uart.port.iobase = pnp_port_start(dev, 2);
443                 uart.port.iotype = UPIO_PORT;
444         } else if (pnp_port_valid(dev, 0)) {
445                 uart.port.iobase = pnp_port_start(dev, 0);
446                 uart.port.iotype = UPIO_PORT;
447         } else if (pnp_mem_valid(dev, 0)) {
448                 uart.port.mapbase = pnp_mem_start(dev, 0);
449                 uart.port.iotype = UPIO_MEM;
450                 uart.port.flags = UPF_IOREMAP;
451         } else
452                 return -ENODEV;
453 
454 #ifdef SERIAL_DEBUG_PNP
455         printk(KERN_DEBUG
456                 "Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
457                        uart.port.iobase, uart.port.mapbase, uart.port.irq, uart.port.iotype);
458 #endif
459         if (flags & CIR_PORT) {
460                 uart.port.flags |= UPF_FIXED_PORT | UPF_FIXED_TYPE;
461                 uart.port.type = PORT_8250_CIR;
462         }
463 
464         uart.port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
465         if (pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE)
466                 uart.port.flags |= UPF_SHARE_IRQ;
467         uart.port.uartclk = 1843200;
468         uart.port.dev = &dev->dev;
469 
470         line = serial8250_register_8250_port(&uart);
471         if (line < 0 || (flags & CIR_PORT))
472                 return -ENODEV;
473 
474         pnp_set_drvdata(dev, (void *)((long)line + 1));
475         return 0;
476 }
477 
478 static void serial_pnp_remove(struct pnp_dev *dev)
479 {
480         long line = (long)pnp_get_drvdata(dev);
481         if (line)
482                 serial8250_unregister_port(line - 1);
483 }
484 
485 #ifdef CONFIG_PM
486 static int serial_pnp_suspend(struct pnp_dev *dev, pm_message_t state)
487 {
488         long line = (long)pnp_get_drvdata(dev);
489 
490         if (!line)
491                 return -ENODEV;
492         serial8250_suspend_port(line - 1);
493         return 0;
494 }
495 
496 static int serial_pnp_resume(struct pnp_dev *dev)
497 {
498         long line = (long)pnp_get_drvdata(dev);
499 
500         if (!line)
501                 return -ENODEV;
502         serial8250_resume_port(line - 1);
503         return 0;
504 }
505 #else
506 #define serial_pnp_suspend NULL
507 #define serial_pnp_resume NULL
508 #endif /* CONFIG_PM */
509 
510 static struct pnp_driver serial_pnp_driver = {
511         .name           = "serial",
512         .probe          = serial_pnp_probe,
513         .remove         = serial_pnp_remove,
514         .suspend        = serial_pnp_suspend,
515         .resume         = serial_pnp_resume,
516         .id_table       = pnp_dev_table,
517 };
518 
519 int serial8250_pnp_init(void)
520 {
521         return pnp_register_driver(&serial_pnp_driver);
522 }
523 
524 void serial8250_pnp_exit(void)
525 {
526         pnp_unregister_driver(&serial_pnp_driver);
527 }
528 
529 

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