2 * speedfax.c low level stuff for Sedlbauer Speedfax+ cards
3 * based on the ISAR DSP
4 * Thanks to Sedlbauer AG for informations and HW
6 * Author Karsten Keil <keil@isdn4linux.de>
8 * Copyright 2009 by Karsten Keil <keil@isdn4linux.de>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include <linux/module.h>
26 #include <linux/pci.h>
27 #include <linux/delay.h>
28 #include <linux/mISDNhw.h>
29 #include <linux/firmware.h>
33 #define SPEEDFAX_REV "2.0"
35 #define PCI_SUBVENDOR_SPEEDFAX_PYRAMID 0x51
36 #define PCI_SUBVENDOR_SPEEDFAX_PCI 0x54
37 #define PCI_SUB_ID_SEDLBAUER 0x01
39 #define SFAX_PCI_ADDR 0xc8
40 #define SFAX_PCI_ISAC 0xd0
41 #define SFAX_PCI_ISAR 0xe0
43 /* TIGER 100 Registers */
45 #define TIGER_RESET_ADDR 0x00
46 #define TIGER_EXTERN_RESET_ON 0x01
47 #define TIGER_EXTERN_RESET_OFF 0x00
48 #define TIGER_AUX_CTRL 0x02
49 #define TIGER_AUX_DATA 0x03
50 #define TIGER_AUX_IRQMASK 0x05
51 #define TIGER_AUX_STATUS 0x07
54 #define SFAX_AUX_IOMASK 0xdd /* 1 and 5 are inputs */
55 #define SFAX_ISAR_RESET_BIT_OFF 0x00
56 #define SFAX_ISAR_RESET_BIT_ON 0x01
57 #define SFAX_TIGER_IRQ_BIT 0x02
58 #define SFAX_LED1_BIT 0x08
59 #define SFAX_LED2_BIT 0x10
61 #define SFAX_PCI_RESET_ON (SFAX_ISAR_RESET_BIT_ON)
62 #define SFAX_PCI_RESET_OFF (SFAX_LED1_BIT | SFAX_LED2_BIT)
66 static u32 irqloops = 4;
69 struct list_head list;
71 char name[MISDN_MAX_IDLEN];
75 struct _ioport p_isac;
76 struct _ioport p_isar;
78 spinlock_t lock; /* HW access lock */
83 static LIST_HEAD(Cards);
84 static DEFINE_RWLOCK(card_lock); /* protect Cards */
87 _set_debug(struct sfax_hw *card)
89 card->isac.dch.debug = debug;
90 card->isar.ch[0].bch.debug = debug;
91 card->isar.ch[1].bch.debug = debug;
95 set_debug(const char *val, struct kernel_param *kp)
100 ret = param_set_uint(val, kp);
102 read_lock(&card_lock);
103 list_for_each_entry(card, &Cards, list)
105 read_unlock(&card_lock);
110 MODULE_AUTHOR("Karsten Keil");
111 MODULE_LICENSE("GPL v2");
112 MODULE_VERSION(SPEEDFAX_REV);
113 MODULE_FIRMWARE("isdn/ISAR.BIN");
114 module_param_call(debug, set_debug, param_get_uint, &debug, S_IRUGO | S_IWUSR);
115 MODULE_PARM_DESC(debug, "Speedfax debug mask");
116 module_param(irqloops, uint, S_IRUGO | S_IWUSR);
117 MODULE_PARM_DESC(irqloops, "Speedfax maximal irqloops (default 4)");
119 IOFUNC_IND(ISAC, sfax_hw, p_isac)
120 IOFUNC_IND(ISAR, sfax_hw, p_isar)
123 speedfax_irq(int intno, void *dev_id)
125 struct sfax_hw *sf = dev_id;
129 spin_lock(&sf->lock);
130 val = inb(sf->cfg + TIGER_AUX_STATUS);
131 if (val & SFAX_TIGER_IRQ_BIT) { /* for us or shared ? */
132 spin_unlock(&sf->lock);
133 return IRQ_NONE; /* shared */
136 val = ReadISAR_IND(sf, ISAR_IRQBIT);
138 if (val & ISAR_IRQSTA)
139 mISDNisar_irq(&sf->isar);
140 val = ReadISAC_IND(sf, ISAC_ISTA);
142 mISDNisac_irq(&sf->isac, val);
143 val = ReadISAR_IND(sf, ISAR_IRQBIT);
144 if ((val & ISAR_IRQSTA) && cnt--)
147 pr_debug("%s: %d irqloops cpu%d\n", sf->name,
148 irqloops - cnt, smp_processor_id());
149 if (irqloops && !cnt)
150 pr_notice("%s: %d IRQ LOOP cpu%d\n", sf->name,
151 irqloops, smp_processor_id());
152 spin_unlock(&sf->lock);
157 enable_hwirq(struct sfax_hw *sf)
159 WriteISAC_IND(sf, ISAC_MASK, 0);
160 WriteISAR_IND(sf, ISAR_IRQBIT, ISAR_IRQMSK);
161 outb(SFAX_TIGER_IRQ_BIT, sf->cfg + TIGER_AUX_IRQMASK);
165 disable_hwirq(struct sfax_hw *sf)
167 WriteISAC_IND(sf, ISAC_MASK, 0xFF);
168 WriteISAR_IND(sf, ISAR_IRQBIT, 0);
169 outb(0, sf->cfg + TIGER_AUX_IRQMASK);
173 reset_speedfax(struct sfax_hw *sf)
176 pr_debug("%s: resetting card\n", sf->name);
177 outb(TIGER_EXTERN_RESET_ON, sf->cfg + TIGER_RESET_ADDR);
178 outb(SFAX_PCI_RESET_ON, sf->cfg + TIGER_AUX_DATA);
180 outb(TIGER_EXTERN_RESET_OFF, sf->cfg + TIGER_RESET_ADDR);
181 sf->aux_data = SFAX_PCI_RESET_OFF;
182 outb(sf->aux_data, sf->cfg + TIGER_AUX_DATA);
187 sfax_ctrl(struct sfax_hw *sf, u32 cmd, u_long arg)
195 case HW_ACTIVATE_IND:
197 sf->aux_data &= ~SFAX_LED1_BIT;
199 sf->aux_data &= ~SFAX_LED2_BIT;
200 outb(sf->aux_data, sf->cfg + TIGER_AUX_DATA);
204 sf->aux_data |= SFAX_LED1_BIT;
206 sf->aux_data |= SFAX_LED2_BIT;
207 outb(sf->aux_data, sf->cfg + TIGER_AUX_DATA);
210 pr_info("%s: %s unknown command %x %lx\n",
211 sf->name, __func__, cmd, arg);
219 channel_ctrl(struct sfax_hw *sf, struct mISDN_ctrl_req *cq)
224 case MISDN_CTRL_GETOP:
225 cq->op = MISDN_CTRL_LOOP;
227 case MISDN_CTRL_LOOP:
228 /* cq->channel: 0 disable, 1 B1 loop 2 B2 loop, 3 both */
229 if (cq->channel < 0 || cq->channel > 3) {
233 ret = sf->isac.ctrl(&sf->isac, HW_TESTLOOP, cq->channel);
236 pr_info("%s: unknown Op %x\n", sf->name, cq->op);
244 sfax_dctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
246 struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
247 struct dchannel *dch = container_of(dev, struct dchannel, dev);
248 struct sfax_hw *sf = dch->hw;
249 struct channel_req *rq;
252 pr_debug("%s: cmd:%x %p\n", sf->name, cmd, arg);
256 if (rq->protocol == ISDN_P_TE_S0)
257 err = sf->isac.open(&sf->isac, rq);
259 err = sf->isar.open(&sf->isar, rq);
262 if (!try_module_get(THIS_MODULE))
263 pr_info("%s: cannot get module\n", sf->name);
266 pr_debug("%s: dev(%d) close from %p\n", sf->name,
267 dch->dev.id, __builtin_return_address(0));
268 module_put(THIS_MODULE);
270 case CONTROL_CHANNEL:
271 err = channel_ctrl(sf, arg);
274 pr_debug("%s: unknown command %x\n", sf->name, cmd);
281 init_card(struct sfax_hw *sf)
286 ret = request_irq(sf->irq, speedfax_irq, IRQF_SHARED, sf->name, sf);
288 pr_info("%s: couldn't get interrupt %d\n", sf->name, sf->irq);
292 spin_lock_irqsave(&sf->lock, flags);
293 ret = sf->isac.init(&sf->isac);
295 spin_unlock_irqrestore(&sf->lock, flags);
296 pr_info("%s: ISAC init failed with %d\n",
301 /* RESET Receiver and Transmitter */
302 WriteISAC_IND(sf, ISAC_CMDR, 0x41);
303 spin_unlock_irqrestore(&sf->lock, flags);
304 msleep_interruptible(10);
305 if (debug & DEBUG_HW)
306 pr_notice("%s: IRQ %d count %d\n", sf->name,
307 sf->irq, sf->irqcnt);
309 pr_info("%s: IRQ(%d) got no requests during init %d\n",
310 sf->name, sf->irq, 3 - cnt);
314 free_irq(sf->irq, sf);
320 setup_speedfax(struct sfax_hw *sf)
324 if (!request_region(sf->cfg, 256, sf->name)) {
325 pr_info("mISDN: %s config port %x-%x already in use\n",
326 sf->name, sf->cfg, sf->cfg + 255);
331 outb(0xdd, sf->cfg + TIGER_AUX_CTRL);
332 outb(0, sf->cfg + TIGER_AUX_IRQMASK);
334 sf->isac.type = IPAC_TYPE_ISAC;
335 sf->p_isac.ale = sf->cfg + SFAX_PCI_ADDR;
336 sf->p_isac.port = sf->cfg + SFAX_PCI_ISAC;
337 sf->p_isar.ale = sf->cfg + SFAX_PCI_ADDR;
338 sf->p_isar.port = sf->cfg + SFAX_PCI_ISAR;
339 ASSIGN_FUNC(IND, ISAC, sf->isac);
340 ASSIGN_FUNC(IND, ISAR, sf->isar);
341 spin_lock_irqsave(&sf->lock, flags);
344 spin_unlock_irqrestore(&sf->lock, flags);
349 release_card(struct sfax_hw *card) {
352 spin_lock_irqsave(&card->lock, flags);
354 spin_unlock_irqrestore(&card->lock, flags);
355 card->isac.release(&card->isac);
356 free_irq(card->irq, card);
357 card->isar.release(&card->isar);
358 mISDN_unregister_device(&card->isac.dch.dev);
359 release_region(card->cfg, 256);
360 pci_disable_device(card->pdev);
361 pci_set_drvdata(card->pdev, NULL);
362 write_lock_irqsave(&card_lock, flags);
363 list_del(&card->list);
364 write_unlock_irqrestore(&card_lock, flags);
370 setup_instance(struct sfax_hw *card)
372 const struct firmware *firmware;
376 snprintf(card->name, MISDN_MAX_IDLEN - 1, "Speedfax.%d", sfax_cnt + 1);
377 write_lock_irqsave(&card_lock, flags);
378 list_add_tail(&card->list, &Cards);
379 write_unlock_irqrestore(&card_lock, flags);
381 spin_lock_init(&card->lock);
382 card->isac.hwlock = &card->lock;
383 card->isar.hwlock = &card->lock;
384 card->isar.ctrl = (void *)&sfax_ctrl;
385 card->isac.name = card->name;
386 card->isar.name = card->name;
387 card->isar.owner = THIS_MODULE;
389 err = request_firmware(&firmware, "isdn/ISAR.BIN", &card->pdev->dev);
391 pr_info("%s: firmware request failed %d\n",
395 if (debug & DEBUG_HW)
396 pr_notice("%s: got firmware %zu bytes\n",
397 card->name, firmware->size);
399 mISDNisac_init(&card->isac, card);
401 card->isac.dch.dev.D.ctrl = sfax_dctrl;
402 card->isac.dch.dev.Bprotocols =
403 mISDNisar_init(&card->isar, card);
404 for (i = 0; i < 2; i++) {
405 set_channelmap(i + 1, card->isac.dch.dev.channelmap);
406 list_add(&card->isar.ch[i].bch.ch.list,
407 &card->isac.dch.dev.bchannels);
410 err = setup_speedfax(card);
413 err = card->isar.init(&card->isar);
416 err = mISDN_register_device(&card->isac.dch.dev,
417 &card->pdev->dev, card->name);
420 err = init_card(card);
423 err = card->isar.firmware(&card->isar, firmware->data, firmware->size);
425 release_firmware(firmware);
427 pr_notice("SpeedFax %d cards installed\n", sfax_cnt);
431 free_irq(card->irq, card);
433 mISDN_unregister_device(&card->isac.dch.dev);
435 release_region(card->cfg, 256);
437 card->isac.release(&card->isac);
438 card->isar.release(&card->isar);
439 release_firmware(firmware);
441 pci_disable_device(card->pdev);
442 write_lock_irqsave(&card_lock, flags);
443 list_del(&card->list);
444 write_unlock_irqrestore(&card_lock, flags);
450 sfaxpci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
453 struct sfax_hw *card = kzalloc(sizeof(struct sfax_hw), GFP_KERNEL);
456 pr_info("No memory for Speedfax+ PCI\n");
460 err = pci_enable_device(pdev);
466 pr_notice("mISDN: Speedfax found adapter %s at %s\n",
467 (char *)ent->driver_data, pci_name(pdev));
469 card->cfg = pci_resource_start(pdev, 0);
470 card->irq = pdev->irq;
471 pci_set_drvdata(pdev, card);
472 err = setup_instance(card);
474 pci_set_drvdata(pdev, NULL);
478 static void __devexit
479 sfax_remove_pci(struct pci_dev *pdev)
481 struct sfax_hw *card = pci_get_drvdata(pdev);
486 pr_debug("%s: drvdata allready removed\n", __func__);
489 static struct pci_device_id sfaxpci_ids[] __devinitdata = {
490 { PCI_VENDOR_ID_TIGERJET, PCI_DEVICE_ID_TIGERJET_100,
491 PCI_SUBVENDOR_SPEEDFAX_PYRAMID, PCI_SUB_ID_SEDLBAUER,
492 0, 0, (unsigned long) "Pyramid Speedfax + PCI"
494 { PCI_VENDOR_ID_TIGERJET, PCI_DEVICE_ID_TIGERJET_100,
495 PCI_SUBVENDOR_SPEEDFAX_PCI, PCI_SUB_ID_SEDLBAUER,
496 0, 0, (unsigned long) "Sedlbauer Speedfax + PCI"
500 MODULE_DEVICE_TABLE(pci, sfaxpci_ids);
502 static struct pci_driver sfaxpci_driver = {
503 .name = "speedfax+ pci",
504 .probe = sfaxpci_probe,
505 .remove = __devexit_p(sfax_remove_pci),
506 .id_table = sfaxpci_ids,
514 pr_notice("Sedlbauer Speedfax+ Driver Rev. %s\n",
516 err = pci_register_driver(&sfaxpci_driver);
521 Speedfax_cleanup(void)
523 pci_unregister_driver(&sfaxpci_driver);
526 module_init(Speedfax_init);
527 module_exit(Speedfax_cleanup);