Root/drivers/parport/parport_serial.c

1/*
2 * Support for common PCI multi-I/O cards (which is most of them)
3 *
4 * Copyright (C) 2001 Tim Waugh <twaugh@redhat.com>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 *
12 * Multi-function PCI cards are supposed to present separate logical
13 * devices on the bus. A common thing to do seems to be to just use
14 * one logical device with lots of base address registers for both
15 * parallel ports and serial ports. This driver is for dealing with
16 * that.
17 *
18 */
19
20#include <linux/types.h>
21#include <linux/module.h>
22#include <linux/init.h>
23#include <linux/slab.h>
24#include <linux/pci.h>
25#include <linux/interrupt.h>
26#include <linux/parport.h>
27#include <linux/parport_pc.h>
28#include <linux/8250_pci.h>
29
30enum parport_pc_pci_cards {
31    titan_110l = 0,
32    titan_210l,
33    netmos_9xx5_combo,
34    netmos_9855,
35    netmos_9855_2p,
36    netmos_9900,
37    netmos_9900_2p,
38    netmos_99xx_1p,
39    avlab_1s1p,
40    avlab_1s2p,
41    avlab_2s1p,
42    siig_1s1p_10x,
43    siig_2s1p_10x,
44    siig_2p1s_20x,
45    siig_1s1p_20x,
46    siig_2s1p_20x,
47    timedia_4078a,
48    timedia_4079h,
49    timedia_4085h,
50    timedia_4088a,
51    timedia_4089a,
52    timedia_4095a,
53    timedia_4096a,
54    timedia_4078u,
55    timedia_4079a,
56    timedia_4085u,
57    timedia_4079r,
58    timedia_4079s,
59    timedia_4079d,
60    timedia_4079e,
61    timedia_4079f,
62    timedia_9079a,
63    timedia_9079b,
64    timedia_9079c,
65};
66
67/* each element directly indexed from enum list, above */
68struct parport_pc_pci {
69    int numports;
70    struct { /* BAR (base address registers) numbers in the config
71                    space header */
72        int lo;
73        int hi; /* -1 if not there, >6 for offset-method (max
74                           BAR is 6) */
75    } addr[4];
76
77    /* If set, this is called immediately after pci_enable_device.
78     * If it returns non-zero, no probing will take place and the
79     * ports will not be used. */
80    int (*preinit_hook) (struct pci_dev *pdev, struct parport_pc_pci *card,
81                int autoirq, int autodma);
82
83    /* If set, this is called after probing for ports. If 'failed'
84     * is non-zero we couldn't use any of the ports. */
85    void (*postinit_hook) (struct pci_dev *pdev,
86                struct parport_pc_pci *card, int failed);
87};
88
89static int __devinit netmos_parallel_init(struct pci_dev *dev, struct parport_pc_pci *par, int autoirq, int autodma)
90{
91    /* the rule described below doesn't hold for this device */
92    if (dev->device == PCI_DEVICE_ID_NETMOS_9835 &&
93            dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
94            dev->subsystem_device == 0x0299)
95        return -ENODEV;
96
97    if (dev->device == PCI_DEVICE_ID_NETMOS_9912) {
98        par->numports = 1;
99    } else {
100        /*
101         * Netmos uses the subdevice ID to indicate the number of parallel
102         * and serial ports. The form is 0x00PS, where <P> is the number of
103         * parallel ports and <S> is the number of serial ports.
104         */
105        par->numports = (dev->subsystem_device & 0xf0) >> 4;
106        if (par->numports > ARRAY_SIZE(par->addr))
107            par->numports = ARRAY_SIZE(par->addr);
108    }
109
110    return 0;
111}
112
113static struct parport_pc_pci cards[] __devinitdata = {
114    /* titan_110l */ { 1, { { 3, -1 }, } },
115    /* titan_210l */ { 1, { { 3, -1 }, } },
116    /* netmos_9xx5_combo */ { 1, { { 2, -1 }, }, netmos_parallel_init },
117    /* netmos_9855 */ { 1, { { 0, -1 }, }, netmos_parallel_init },
118    /* netmos_9855_2p */ { 2, { { 0, -1 }, { 2, -1 }, } },
119    /* netmos_9900 */ {1, { { 3, 4 }, }, netmos_parallel_init },
120    /* netmos_9900_2p */ {2, { { 0, 1 }, { 3, 4 }, } },
121    /* netmos_99xx_1p */ {1, { { 0, 1 }, } },
122    /* avlab_1s1p */ { 1, { { 1, 2}, } },
123    /* avlab_1s2p */ { 2, { { 1, 2}, { 3, 4 },} },
124    /* avlab_2s1p */ { 1, { { 2, 3}, } },
125    /* siig_1s1p_10x */ { 1, { { 3, 4 }, } },
126    /* siig_2s1p_10x */ { 1, { { 4, 5 }, } },
127    /* siig_2p1s_20x */ { 2, { { 1, 2 }, { 3, 4 }, } },
128    /* siig_1s1p_20x */ { 1, { { 1, 2 }, } },
129    /* siig_2s1p_20x */ { 1, { { 2, 3 }, } },
130    /* timedia_4078a */ { 1, { { 2, -1 }, } },
131    /* timedia_4079h */ { 1, { { 2, 3 }, } },
132    /* timedia_4085h */ { 2, { { 2, -1 }, { 4, -1 }, } },
133    /* timedia_4088a */ { 2, { { 2, 3 }, { 4, 5 }, } },
134    /* timedia_4089a */ { 2, { { 2, 3 }, { 4, 5 }, } },
135    /* timedia_4095a */ { 2, { { 2, 3 }, { 4, 5 }, } },
136    /* timedia_4096a */ { 2, { { 2, 3 }, { 4, 5 }, } },
137    /* timedia_4078u */ { 1, { { 2, -1 }, } },
138    /* timedia_4079a */ { 1, { { 2, 3 }, } },
139    /* timedia_4085u */ { 2, { { 2, -1 }, { 4, -1 }, } },
140    /* timedia_4079r */ { 1, { { 2, 3 }, } },
141    /* timedia_4079s */ { 1, { { 2, 3 }, } },
142    /* timedia_4079d */ { 1, { { 2, 3 }, } },
143    /* timedia_4079e */ { 1, { { 2, 3 }, } },
144    /* timedia_4079f */ { 1, { { 2, 3 }, } },
145    /* timedia_9079a */ { 1, { { 2, 3 }, } },
146    /* timedia_9079b */ { 1, { { 2, 3 }, } },
147    /* timedia_9079c */ { 1, { { 2, 3 }, } },
148};
149
150static struct pci_device_id parport_serial_pci_tbl[] = {
151    /* PCI cards */
152    { PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_110L,
153      PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_110l },
154    { PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_210L,
155      PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_210l },
156    { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9735,
157      PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
158    { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9745,
159      PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
160    { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835,
161      PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
162    { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9845,
163      PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
164    { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
165      0x1000, 0x0020, 0, 0, netmos_9855_2p },
166    { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
167      0x1000, 0x0022, 0, 0, netmos_9855_2p },
168    { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
169      PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9855 },
170    { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9900,
171      0xA000, 0x3011, 0, 0, netmos_9900 },
172    { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9900,
173      0xA000, 0x3012, 0, 0, netmos_9900 },
174    { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9900,
175      0xA000, 0x3020, 0, 0, netmos_9900_2p },
176    { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9912,
177      0xA000, 0x2000, 0, 0, netmos_99xx_1p },
178    /* PCI_VENDOR_ID_AVLAB/Intek21 has another bunch of cards ...*/
179    { PCI_VENDOR_ID_AFAVLAB, 0x2110,
180      PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p },
181    { PCI_VENDOR_ID_AFAVLAB, 0x2111,
182      PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p },
183    { PCI_VENDOR_ID_AFAVLAB, 0x2112,
184      PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p },
185    { PCI_VENDOR_ID_AFAVLAB, 0x2140,
186      PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p },
187    { PCI_VENDOR_ID_AFAVLAB, 0x2141,
188      PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p },
189    { PCI_VENDOR_ID_AFAVLAB, 0x2142,
190      PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p },
191    { PCI_VENDOR_ID_AFAVLAB, 0x2160,
192      PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p },
193    { PCI_VENDOR_ID_AFAVLAB, 0x2161,
194      PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p },
195    { PCI_VENDOR_ID_AFAVLAB, 0x2162,
196      PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p },
197    { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_550,
198      PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
199    { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_650,
200      PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
201    { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_850,
202      PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
203    { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_550,
204      PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
205    { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_650,
206      PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
207    { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_850,
208      PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
209    { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_550,
210      PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
211    { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_650,
212      PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
213    { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_850,
214      PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
215    { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_550,
216      PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
217    { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_650,
218      PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
219    { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_850,
220      PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
221    { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_550,
222      PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
223    { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_650,
224      PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
225    { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_850,
226      PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
227    /* PCI_VENDOR_ID_TIMEDIA/SUNIX has many differing cards ...*/
228    { 0x1409, 0x7168, 0x1409, 0x4078, 0, 0, timedia_4078a },
229    { 0x1409, 0x7168, 0x1409, 0x4079, 0, 0, timedia_4079h },
230    { 0x1409, 0x7168, 0x1409, 0x4085, 0, 0, timedia_4085h },
231    { 0x1409, 0x7168, 0x1409, 0x4088, 0, 0, timedia_4088a },
232    { 0x1409, 0x7168, 0x1409, 0x4089, 0, 0, timedia_4089a },
233    { 0x1409, 0x7168, 0x1409, 0x4095, 0, 0, timedia_4095a },
234    { 0x1409, 0x7168, 0x1409, 0x4096, 0, 0, timedia_4096a },
235    { 0x1409, 0x7168, 0x1409, 0x5078, 0, 0, timedia_4078u },
236    { 0x1409, 0x7168, 0x1409, 0x5079, 0, 0, timedia_4079a },
237    { 0x1409, 0x7168, 0x1409, 0x5085, 0, 0, timedia_4085u },
238    { 0x1409, 0x7168, 0x1409, 0x6079, 0, 0, timedia_4079r },
239    { 0x1409, 0x7168, 0x1409, 0x7079, 0, 0, timedia_4079s },
240    { 0x1409, 0x7168, 0x1409, 0x8079, 0, 0, timedia_4079d },
241    { 0x1409, 0x7168, 0x1409, 0x9079, 0, 0, timedia_4079e },
242    { 0x1409, 0x7168, 0x1409, 0xa079, 0, 0, timedia_4079f },
243    { 0x1409, 0x7168, 0x1409, 0xb079, 0, 0, timedia_9079a },
244    { 0x1409, 0x7168, 0x1409, 0xc079, 0, 0, timedia_9079b },
245    { 0x1409, 0x7168, 0x1409, 0xd079, 0, 0, timedia_9079c },
246
247    { 0, } /* terminate list */
248};
249MODULE_DEVICE_TABLE(pci,parport_serial_pci_tbl);
250
251/*
252 * This table describes the serial "geometry" of these boards. Any
253 * quirks for these can be found in drivers/serial/8250_pci.c
254 *
255 * Cards not tested are marked n/t
256 * If you have one of these cards and it works for you, please tell me..
257 */
258static struct pciserial_board pci_parport_serial_boards[] __devinitdata = {
259    [titan_110l] = {
260        .flags = FL_BASE1 | FL_BASE_BARS,
261        .num_ports = 1,
262        .base_baud = 921600,
263        .uart_offset = 8,
264    },
265    [titan_210l] = {
266        .flags = FL_BASE1 | FL_BASE_BARS,
267        .num_ports = 2,
268        .base_baud = 921600,
269        .uart_offset = 8,
270    },
271    [netmos_9xx5_combo] = {
272        .flags = FL_BASE0 | FL_BASE_BARS,
273        .num_ports = 1,
274        .base_baud = 115200,
275        .uart_offset = 8,
276    },
277    [netmos_9855] = {
278        .flags = FL_BASE2 | FL_BASE_BARS,
279        .num_ports = 1,
280        .base_baud = 115200,
281        .uart_offset = 8,
282    },
283    [netmos_9855_2p] = {
284        .flags = FL_BASE4 | FL_BASE_BARS,
285        .num_ports = 1,
286        .base_baud = 115200,
287        .uart_offset = 8,
288    },
289    [netmos_9900] = { /* n/t */
290        .flags = FL_BASE0 | FL_BASE_BARS,
291        .num_ports = 1,
292        .base_baud = 115200,
293        .uart_offset = 8,
294    },
295    [netmos_9900_2p] = { /* parallel only */ /* n/t */
296        .flags = FL_BASE0,
297        .num_ports = 0,
298        .base_baud = 115200,
299        .uart_offset = 8,
300    },
301    [netmos_99xx_1p] = { /* parallel only */ /* n/t */
302        .flags = FL_BASE0,
303        .num_ports = 0,
304        .base_baud = 115200,
305        .uart_offset = 8,
306    },
307    [avlab_1s1p] = { /* n/t */
308        .flags = FL_BASE0 | FL_BASE_BARS,
309        .num_ports = 1,
310        .base_baud = 115200,
311        .uart_offset = 8,
312    },
313    [avlab_1s2p] = { /* n/t */
314        .flags = FL_BASE0 | FL_BASE_BARS,
315        .num_ports = 1,
316        .base_baud = 115200,
317        .uart_offset = 8,
318    },
319    [avlab_2s1p] = { /* n/t */
320        .flags = FL_BASE0 | FL_BASE_BARS,
321        .num_ports = 2,
322        .base_baud = 115200,
323        .uart_offset = 8,
324    },
325    [siig_1s1p_10x] = {
326        .flags = FL_BASE2,
327        .num_ports = 1,
328        .base_baud = 460800,
329        .uart_offset = 8,
330    },
331    [siig_2s1p_10x] = {
332        .flags = FL_BASE2,
333        .num_ports = 1,
334        .base_baud = 921600,
335        .uart_offset = 8,
336    },
337    [siig_2p1s_20x] = {
338        .flags = FL_BASE0,
339        .num_ports = 1,
340        .base_baud = 921600,
341        .uart_offset = 8,
342    },
343    [siig_1s1p_20x] = {
344        .flags = FL_BASE0,
345        .num_ports = 1,
346        .base_baud = 921600,
347        .uart_offset = 8,
348    },
349    [siig_2s1p_20x] = {
350        .flags = FL_BASE0,
351        .num_ports = 1,
352        .base_baud = 921600,
353        .uart_offset = 8,
354    },
355    [timedia_4078a] = {
356        .flags = FL_BASE0|FL_BASE_BARS,
357        .num_ports = 1,
358        .base_baud = 921600,
359        .uart_offset = 8,
360    },
361    [timedia_4079h] = {
362        .flags = FL_BASE0|FL_BASE_BARS,
363        .num_ports = 1,
364        .base_baud = 921600,
365        .uart_offset = 8,
366    },
367    [timedia_4085h] = {
368        .flags = FL_BASE0|FL_BASE_BARS,
369        .num_ports = 1,
370        .base_baud = 921600,
371        .uart_offset = 8,
372    },
373    [timedia_4088a] = {
374        .flags = FL_BASE0|FL_BASE_BARS,
375        .num_ports = 1,
376        .base_baud = 921600,
377        .uart_offset = 8,
378    },
379    [timedia_4089a] = {
380        .flags = FL_BASE0|FL_BASE_BARS,
381        .num_ports = 1,
382        .base_baud = 921600,
383        .uart_offset = 8,
384    },
385    [timedia_4095a] = {
386        .flags = FL_BASE0|FL_BASE_BARS,
387        .num_ports = 1,
388        .base_baud = 921600,
389        .uart_offset = 8,
390    },
391    [timedia_4096a] = {
392        .flags = FL_BASE0|FL_BASE_BARS,
393        .num_ports = 1,
394        .base_baud = 921600,
395        .uart_offset = 8,
396    },
397    [timedia_4078u] = {
398        .flags = FL_BASE0|FL_BASE_BARS,
399        .num_ports = 1,
400        .base_baud = 921600,
401        .uart_offset = 8,
402    },
403    [timedia_4079a] = {
404        .flags = FL_BASE0|FL_BASE_BARS,
405        .num_ports = 1,
406        .base_baud = 921600,
407        .uart_offset = 8,
408    },
409    [timedia_4085u] = {
410        .flags = FL_BASE0|FL_BASE_BARS,
411        .num_ports = 1,
412        .base_baud = 921600,
413        .uart_offset = 8,
414    },
415    [timedia_4079r] = {
416        .flags = FL_BASE0|FL_BASE_BARS,
417        .num_ports = 1,
418        .base_baud = 921600,
419        .uart_offset = 8,
420    },
421    [timedia_4079s] = {
422        .flags = FL_BASE0|FL_BASE_BARS,
423        .num_ports = 1,
424        .base_baud = 921600,
425        .uart_offset = 8,
426    },
427    [timedia_4079d] = {
428        .flags = FL_BASE0|FL_BASE_BARS,
429        .num_ports = 1,
430        .base_baud = 921600,
431        .uart_offset = 8,
432    },
433    [timedia_4079e] = {
434        .flags = FL_BASE0|FL_BASE_BARS,
435        .num_ports = 1,
436        .base_baud = 921600,
437        .uart_offset = 8,
438    },
439    [timedia_4079f] = {
440        .flags = FL_BASE0|FL_BASE_BARS,
441        .num_ports = 1,
442        .base_baud = 921600,
443        .uart_offset = 8,
444    },
445    [timedia_9079a] = {
446        .flags = FL_BASE0|FL_BASE_BARS,
447        .num_ports = 1,
448        .base_baud = 921600,
449        .uart_offset = 8,
450    },
451    [timedia_9079b] = {
452        .flags = FL_BASE0|FL_BASE_BARS,
453        .num_ports = 1,
454        .base_baud = 921600,
455        .uart_offset = 8,
456    },
457    [timedia_9079c] = {
458        .flags = FL_BASE0|FL_BASE_BARS,
459        .num_ports = 1,
460        .base_baud = 921600,
461        .uart_offset = 8,
462    },
463};
464
465struct parport_serial_private {
466    struct serial_private *serial;
467    int num_par;
468    struct parport *port[PARPORT_MAX];
469    struct parport_pc_pci par;
470};
471
472/* Register the serial port(s) of a PCI card. */
473static int __devinit serial_register (struct pci_dev *dev,
474                      const struct pci_device_id *id)
475{
476    struct parport_serial_private *priv = pci_get_drvdata (dev);
477    struct pciserial_board *board;
478    struct serial_private *serial;
479
480    board = &pci_parport_serial_boards[id->driver_data];
481
482    if (board->num_ports == 0)
483        return 0;
484
485    serial = pciserial_init_ports(dev, board);
486
487    if (IS_ERR(serial))
488        return PTR_ERR(serial);
489
490    priv->serial = serial;
491    return 0;
492}
493
494/* Register the parallel port(s) of a PCI card. */
495static int __devinit parport_register (struct pci_dev *dev,
496                       const struct pci_device_id *id)
497{
498    struct parport_pc_pci *card;
499    struct parport_serial_private *priv = pci_get_drvdata (dev);
500    int n, success = 0;
501
502    priv->par = cards[id->driver_data];
503    card = &priv->par;
504    if (card->preinit_hook &&
505        card->preinit_hook (dev, card, PARPORT_IRQ_NONE, PARPORT_DMA_NONE))
506        return -ENODEV;
507
508    for (n = 0; n < card->numports; n++) {
509        struct parport *port;
510        int lo = card->addr[n].lo;
511        int hi = card->addr[n].hi;
512        unsigned long io_lo, io_hi;
513        int irq;
514
515        if (priv->num_par == ARRAY_SIZE (priv->port)) {
516            printk (KERN_WARNING
517                "parport_serial: %s: only %zu parallel ports "
518                "supported (%d reported)\n", pci_name (dev),
519                ARRAY_SIZE(priv->port), card->numports);
520            break;
521        }
522
523        io_lo = pci_resource_start (dev, lo);
524        io_hi = 0;
525        if ((hi >= 0) && (hi <= 6))
526            io_hi = pci_resource_start (dev, hi);
527        else if (hi > 6)
528            io_lo += hi; /* Reinterpret the meaning of
529                                        "hi" as an offset (see SYBA
530                                        def.) */
531        /* TODO: test if sharing interrupts works */
532        irq = dev->irq;
533        if (irq == IRQ_NONE) {
534            dev_dbg(&dev->dev,
535            "PCI parallel port detected: I/O at %#lx(%#lx)\n",
536                io_lo, io_hi);
537            irq = PARPORT_IRQ_NONE;
538        } else {
539            dev_dbg(&dev->dev,
540        "PCI parallel port detected: I/O at %#lx(%#lx), IRQ %d\n",
541                io_lo, io_hi, irq);
542        }
543        port = parport_pc_probe_port (io_lo, io_hi, irq,
544                  PARPORT_DMA_NONE, &dev->dev, IRQF_SHARED);
545        if (port) {
546            priv->port[priv->num_par++] = port;
547            success = 1;
548        }
549    }
550
551    if (card->postinit_hook)
552        card->postinit_hook (dev, card, !success);
553
554    return 0;
555}
556
557static int __devinit parport_serial_pci_probe (struct pci_dev *dev,
558                           const struct pci_device_id *id)
559{
560    struct parport_serial_private *priv;
561    int err;
562
563    priv = kzalloc (sizeof *priv, GFP_KERNEL);
564    if (!priv)
565        return -ENOMEM;
566    pci_set_drvdata (dev, priv);
567
568    err = pci_enable_device (dev);
569    if (err) {
570        pci_set_drvdata (dev, NULL);
571        kfree (priv);
572        return err;
573    }
574
575    if (parport_register (dev, id)) {
576        pci_set_drvdata (dev, NULL);
577        kfree (priv);
578        return -ENODEV;
579    }
580
581    if (serial_register (dev, id)) {
582        int i;
583        for (i = 0; i < priv->num_par; i++)
584            parport_pc_unregister_port (priv->port[i]);
585        pci_set_drvdata (dev, NULL);
586        kfree (priv);
587        return -ENODEV;
588    }
589
590    return 0;
591}
592
593static void __devexit parport_serial_pci_remove (struct pci_dev *dev)
594{
595    struct parport_serial_private *priv = pci_get_drvdata (dev);
596    int i;
597
598    pci_set_drvdata(dev, NULL);
599
600    // Serial ports
601    if (priv->serial)
602        pciserial_remove_ports(priv->serial);
603
604    // Parallel ports
605    for (i = 0; i < priv->num_par; i++)
606        parport_pc_unregister_port (priv->port[i]);
607
608    kfree (priv);
609    return;
610}
611
612#ifdef CONFIG_PM
613static int parport_serial_pci_suspend(struct pci_dev *dev, pm_message_t state)
614{
615    struct parport_serial_private *priv = pci_get_drvdata(dev);
616
617    if (priv->serial)
618        pciserial_suspend_ports(priv->serial);
619
620    /* FIXME: What about parport? */
621
622    pci_save_state(dev);
623    pci_set_power_state(dev, pci_choose_state(dev, state));
624    return 0;
625}
626
627static int parport_serial_pci_resume(struct pci_dev *dev)
628{
629    struct parport_serial_private *priv = pci_get_drvdata(dev);
630    int err;
631
632    pci_set_power_state(dev, PCI_D0);
633    pci_restore_state(dev);
634
635    /*
636     * The device may have been disabled. Re-enable it.
637     */
638    err = pci_enable_device(dev);
639    if (err) {
640        printk(KERN_ERR "parport_serial: %s: error enabling "
641            "device for resume (%d)\n", pci_name(dev), err);
642        return err;
643    }
644
645    if (priv->serial)
646        pciserial_resume_ports(priv->serial);
647
648    /* FIXME: What about parport? */
649
650    return 0;
651}
652#endif
653
654static struct pci_driver parport_serial_pci_driver = {
655    .name = "parport_serial",
656    .id_table = parport_serial_pci_tbl,
657    .probe = parport_serial_pci_probe,
658    .remove = __devexit_p(parport_serial_pci_remove),
659#ifdef CONFIG_PM
660    .suspend = parport_serial_pci_suspend,
661    .resume = parport_serial_pci_resume,
662#endif
663};
664
665
666static int __init parport_serial_init (void)
667{
668    return pci_register_driver (&parport_serial_pci_driver);
669}
670
671static void __exit parport_serial_exit (void)
672{
673    pci_unregister_driver (&parport_serial_pci_driver);
674    return;
675}
676
677MODULE_AUTHOR("Tim Waugh <twaugh@redhat.com>");
678MODULE_DESCRIPTION("Driver for common parallel+serial multi-I/O PCI cards");
679MODULE_LICENSE("GPL");
680
681module_init(parport_serial_init);
682module_exit(parport_serial_exit);
683

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