1 /* $Id: divasmain.c,v 1.55.4.6 2005/02/09 19:28:20 armin Exp $
3 * Low level driver for Eicon DIVA Server ISDN cards.
5 * Copyright 2000-2003 by Armin Schindler (mac@melware.de)
6 * Copyright 2000-2003 Cytronics & Melware (info@melware.de)
8 * This software may be used and distributed according to the terms
9 * of the GNU General Public License, incorporated herein by reference.
12 #include <linux/module.h>
13 #include <linux/init.h>
14 #include <linux/kernel.h>
15 #include <linux/sched.h>
16 #include <asm/uaccess.h>
18 #include <linux/ioport.h>
19 #include <linux/workqueue.h>
20 #include <linux/pci.h>
21 #include <linux/smp_lock.h>
22 #include <linux/interrupt.h>
23 #include <linux/list.h>
24 #include <linux/poll.h>
25 #include <linux/kmod.h>
37 #include "xdi_adapter.h"
42 static char *main_revision = "$Revision: 1.55.4.6 $";
48 MODULE_DESCRIPTION("Kernel driver for Eicon DIVA Server cards");
49 MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
50 MODULE_LICENSE("GPL");
52 module_param(dbgmask, int, 0);
53 MODULE_PARM_DESC(dbgmask, "initial debug mask");
55 static char *DRIVERNAME =
56 "Eicon DIVA Server driver (http://www.melware.net)";
57 static char *DRIVERLNAME = "divas";
58 static char *DEVNAME = "Divas";
59 char *DRIVERRELEASE_DIVAS = "2.0";
61 extern irqreturn_t diva_os_irq_wrapper(int irq, void *context);
62 extern int create_divas_proc(void);
63 extern void remove_divas_proc(void);
64 extern void diva_get_vserial_number(PISDN_ADAPTER IoAdapter, char *buf);
65 extern int divasfunc_init(int dbgmask);
66 extern void divasfunc_exit(void);
68 typedef struct _diva_os_thread_dpc {
69 struct tasklet_struct divas_task;
70 diva_os_soft_isr_t *psoft_isr;
71 } diva_os_thread_dpc_t;
73 /* --------------------------------------------------------------------------
74 PCI driver interface section
75 -------------------------------------------------------------------------- */
77 vendor, device Vendor and device ID to match (or PCI_ANY_ID)
78 subvendor, Subsystem vendor and device ID to match (or PCI_ANY_ID)
80 class, Device class to match. The class_mask tells which bits
81 class_mask of the class are honored during the comparison.
82 driver_data Data private to the driver.
85 #if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2)
86 #define PCI_DEVICE_ID_EICON_MAESTRAP_2 0xE015
89 #if !defined(PCI_DEVICE_ID_EICON_4BRI_VOIP)
90 #define PCI_DEVICE_ID_EICON_4BRI_VOIP 0xE016
93 #if !defined(PCI_DEVICE_ID_EICON_4BRI_2_VOIP)
94 #define PCI_DEVICE_ID_EICON_4BRI_2_VOIP 0xE017
97 #if !defined(PCI_DEVICE_ID_EICON_BRI2M_2)
98 #define PCI_DEVICE_ID_EICON_BRI2M_2 0xE018
101 #if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP)
102 #define PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP 0xE019
105 #if !defined(PCI_DEVICE_ID_EICON_2F)
106 #define PCI_DEVICE_ID_EICON_2F 0xE01A
109 #if !defined(PCI_DEVICE_ID_EICON_BRI2M_2_VOIP)
110 #define PCI_DEVICE_ID_EICON_BRI2M_2_VOIP 0xE01B
114 This table should be sorted by PCI device ID
116 static struct pci_device_id divas_pci_tbl[] = {
117 /* Diva Server BRI-2M PCI 0xE010 */
118 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRA,
119 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_MAESTRA_PCI},
120 /* Diva Server 4BRI-8M PCI 0xE012 */
121 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAQ,
122 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_Q_8M_PCI},
123 /* Diva Server 4BRI-8M 2.0 PCI 0xE013 */
124 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAQ_U,
125 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_Q_8M_V2_PCI},
126 /* Diva Server PRI-30M PCI 0xE014 */
127 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP,
128 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_P_30M_PCI},
129 /* Diva Server PRI 2.0 adapter 0xE015 */
130 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2,
131 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_P_30M_V2_PCI},
132 /* Diva Server Voice 4BRI-8M PCI 0xE016 */
133 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_4BRI_VOIP,
134 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_Q_8M_PCI},
135 /* Diva Server Voice 4BRI-8M 2.0 PCI 0xE017 */
136 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_4BRI_2_VOIP,
137 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_Q_8M_V2_PCI},
138 /* Diva Server BRI-2M 2.0 PCI 0xE018 */
139 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_BRI2M_2,
140 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_B_2M_V2_PCI},
141 /* Diva Server Voice PRI 2.0 PCI 0xE019 */
142 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP,
143 PCI_ANY_ID, PCI_ANY_ID, 0, 0,
144 CARDTYPE_DIVASRV_VOICE_P_30M_V2_PCI},
145 /* Diva Server 2FX 0xE01A */
146 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_2F,
147 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_B_2F_PCI},
148 /* Diva Server Voice BRI-2M 2.0 PCI 0xE01B */
149 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_BRI2M_2_VOIP,
150 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_B_2M_V2_PCI},
151 {0,} /* 0 terminated list. */
153 MODULE_DEVICE_TABLE(pci, divas_pci_tbl);
155 static int divas_init_one(struct pci_dev *pdev,
156 const struct pci_device_id *ent);
157 static void __devexit divas_remove_one(struct pci_dev *pdev);
159 static struct pci_driver diva_pci_driver = {
161 .probe = divas_init_one,
162 .remove = __devexit_p(divas_remove_one),
163 .id_table = divas_pci_tbl,
166 /*********************************************************
167 ** little helper functions
168 *********************************************************/
169 static char *getrev(const char *revision)
173 if ((p = strchr(revision, ':'))) {
175 p = strchr(rev, '$');
182 void diva_log_info(unsigned char *format, ...)
185 unsigned char line[160];
187 va_start(args, format);
188 vsnprintf(line, sizeof(line), format, args);
191 printk(KERN_INFO "%s: %s\n", DRIVERLNAME, line);
194 void divas_get_version(char *p)
198 strcpy(tmprev, main_revision);
199 sprintf(p, "%s: %s(%s) %s(%s) major=%d\n", DRIVERLNAME, DRIVERRELEASE_DIVAS,
200 getrev(tmprev), diva_xdi_common_code_build, DIVA_BUILD, major);
203 /* --------------------------------------------------------------------------
205 -------------------------------------------------------------------------- */
206 byte diva_os_get_pci_bus(void *pci_dev_handle)
208 struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle;
209 return ((byte) pdev->bus->number);
212 byte diva_os_get_pci_func(void *pci_dev_handle)
214 struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle;
215 return ((byte) pdev->devfn);
218 unsigned long divasa_get_pci_irq(unsigned char bus, unsigned char func,
219 void *pci_dev_handle)
221 unsigned char irq = 0;
222 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
226 return ((unsigned long) irq);
229 unsigned long divasa_get_pci_bar(unsigned char bus, unsigned char func,
230 int bar, void *pci_dev_handle)
232 unsigned long ret = 0;
233 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
236 ret = dev->resource[bar].start;
239 DBG_TRC(("GOT BAR[%d]=%08x", bar, ret));
242 unsigned long type = (ret & 0x00000001);
243 if (type & PCI_BASE_ADDRESS_SPACE_IO) {
245 ret &= PCI_BASE_ADDRESS_IO_MASK;
247 DBG_TRC((" memory"));
248 ret &= PCI_BASE_ADDRESS_MEM_MASK;
250 DBG_TRC((" final=%08x", ret));
256 void PCIwrite(byte bus, byte func, int offset, void *data, int length,
257 void *pci_dev_handle)
259 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
263 pci_write_config_byte(dev, offset,
264 *(unsigned char *) data);
267 pci_write_config_word(dev, offset,
268 *(unsigned short *) data);
271 pci_write_config_dword(dev, offset,
272 *(unsigned int *) data);
275 default: /* buffer */
276 if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */
277 dword *p = (dword *) data;
281 pci_write_config_dword(dev, offset,
285 } else { /* copy as byte stream */
286 byte *p = (byte *) data;
289 pci_write_config_byte(dev, offset,
297 void PCIread(byte bus, byte func, int offset, void *data, int length,
298 void *pci_dev_handle)
300 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
304 pci_read_config_byte(dev, offset, (unsigned char *) data);
307 pci_read_config_word(dev, offset, (unsigned short *) data);
310 pci_read_config_dword(dev, offset, (unsigned int *) data);
313 default: /* buffer */
314 if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */
315 dword *p = (dword *) data;
319 pci_read_config_dword(dev, offset,
323 } else { /* copy as byte stream */
324 byte *p = (byte *) data;
327 pci_read_config_byte(dev, offset,
336 Init map with DMA pages. It is not problem if some allocations fail -
337 the channels that will not get one DMA page will use standard PIO
340 static void *diva_pci_alloc_consistent(struct pci_dev *hwdev,
342 dma_addr_t * dma_handle,
345 void *addr = pci_alloc_consistent(hwdev, size, dma_handle);
352 void diva_init_dma_map(void *hdev,
353 struct _diva_dma_map_entry **ppmap, int nentries)
355 struct pci_dev *pdev = (struct pci_dev *) hdev;
356 struct _diva_dma_map_entry *pmap =
357 diva_alloc_dma_map(hdev, nentries);
361 dma_addr_t dma_handle;
365 for (i = 0; i < nentries; i++) {
366 if (!(cpu_addr = diva_pci_alloc_consistent(pdev,
373 diva_init_dma_map_entry(pmap, i, cpu_addr,
376 DBG_TRC(("dma map alloc [%d]=(%08lx:%08x:%08lx)",
377 i, (unsigned long) cpu_addr,
379 (unsigned long) addr_handle))}
386 Free all contained in the map entries and memory used by the map
387 Should be always called after adapter removal from DIDD array
389 void diva_free_dma_map(void *hdev, struct _diva_dma_map_entry *pmap)
391 struct pci_dev *pdev = (struct pci_dev *) hdev;
395 dma_addr_t dma_handle;
398 for (i = 0; (pmap != 0); i++) {
399 diva_get_dma_map_entry(pmap, i, &cpu_addr, &phys_addr);
403 addr_handle = diva_get_entry_handle(pmap, i);
404 dma_handle = (dma_addr_t) phys_addr;
405 pci_free_consistent(pdev, PAGE_SIZE, addr_handle,
407 DBG_TRC(("dma map free [%d]=(%08lx:%08x:%08lx)", i,
408 (unsigned long) cpu_addr, (dword) dma_handle,
409 (unsigned long) addr_handle))
412 diva_free_dma_mapping(pmap);
416 /*********************************************************
417 ** I/O port utilities
418 *********************************************************/
421 diva_os_register_io_port(void *adapter, int on, unsigned long port,
422 unsigned long length, const char *name, int id)
425 if (!request_region(port, length, name)) {
426 DBG_ERR(("A: I/O: can't register port=%08x", port))
430 release_region(port, length);
435 void __iomem *divasa_remap_pci_bar(diva_os_xdi_adapter_t *a, int id, unsigned long bar, unsigned long area_length)
437 void __iomem *ret = ioremap(bar, area_length);
438 DBG_TRC(("remap(%08x)->%p", bar, ret));
442 void divasa_unmap_pci_bar(void __iomem *bar)
449 /*********************************************************
451 *********************************************************/
452 byte __inline__ inpp(void __iomem *addr)
454 return (inb((unsigned long) addr));
457 word __inline__ inppw(void __iomem *addr)
459 return (inw((unsigned long) addr));
462 void __inline__ inppw_buffer(void __iomem *addr, void *P, int length)
464 insw((unsigned long) addr, (word *) P, length >> 1);
467 void __inline__ outppw_buffer(void __iomem *addr, void *P, int length)
469 outsw((unsigned long) addr, (word *) P, length >> 1);
472 void __inline__ outppw(void __iomem *addr, word w)
474 outw(w, (unsigned long) addr);
477 void __inline__ outpp(void __iomem *addr, word p)
479 outb(p, (unsigned long) addr);
482 /* --------------------------------------------------------------------------
484 -------------------------------------------------------------------------- */
485 int diva_os_register_irq(void *context, byte irq, const char *name)
487 int result = request_irq(irq, diva_os_irq_wrapper,
488 IRQF_DISABLED | IRQF_SHARED, name, context);
492 void diva_os_remove_irq(void *context, byte irq)
494 free_irq(irq, context);
497 /* --------------------------------------------------------------------------
498 DPC framework implementation
499 -------------------------------------------------------------------------- */
500 static void diva_os_dpc_proc(unsigned long context)
502 diva_os_thread_dpc_t *psoft_isr = (diva_os_thread_dpc_t *) context;
503 diva_os_soft_isr_t *pisr = psoft_isr->psoft_isr;
505 (*(pisr->callback)) (pisr, pisr->callback_context);
508 int diva_os_initialize_soft_isr(diva_os_soft_isr_t * psoft_isr,
509 diva_os_soft_isr_callback_t callback,
510 void *callback_context)
512 diva_os_thread_dpc_t *pdpc;
514 pdpc = (diva_os_thread_dpc_t *) diva_os_malloc(0, sizeof(*pdpc));
515 if (!(psoft_isr->object = pdpc)) {
518 memset(pdpc, 0x00, sizeof(*pdpc));
519 psoft_isr->callback = callback;
520 psoft_isr->callback_context = callback_context;
521 pdpc->psoft_isr = psoft_isr;
522 tasklet_init(&pdpc->divas_task, diva_os_dpc_proc, (unsigned long)pdpc);
527 int diva_os_schedule_soft_isr(diva_os_soft_isr_t * psoft_isr)
529 if (psoft_isr && psoft_isr->object) {
530 diva_os_thread_dpc_t *pdpc =
531 (diva_os_thread_dpc_t *) psoft_isr->object;
533 tasklet_schedule(&pdpc->divas_task);
539 int diva_os_cancel_soft_isr(diva_os_soft_isr_t * psoft_isr)
544 void diva_os_remove_soft_isr(diva_os_soft_isr_t * psoft_isr)
546 if (psoft_isr && psoft_isr->object) {
547 diva_os_thread_dpc_t *pdpc =
548 (diva_os_thread_dpc_t *) psoft_isr->object;
551 tasklet_kill(&pdpc->divas_task);
552 flush_scheduled_work();
553 mem = psoft_isr->object;
554 psoft_isr->object = NULL;
555 diva_os_free(0, mem);
560 * kernel/user space copy functions
563 xdi_copy_to_user(void *os_handle, void __user *dst, const void *src, int length)
565 if (copy_to_user(dst, src, length)) {
572 xdi_copy_from_user(void *os_handle, void *dst, const void __user *src, int length)
574 if (copy_from_user(dst, src, length)) {
581 * device node operations
583 static int divas_open(struct inode *inode, struct file *file)
588 static int divas_release(struct inode *inode, struct file *file)
590 if (file->private_data) {
591 diva_xdi_close_adapter(file->private_data, file);
596 static ssize_t divas_write(struct file *file, const char __user *buf,
597 size_t count, loff_t * ppos)
601 if (!file->private_data) {
602 file->private_data = diva_xdi_open_adapter(file, buf,
606 if (!file->private_data) {
610 ret = diva_xdi_write(file->private_data, file,
611 buf, count, xdi_copy_from_user);
613 case -1: /* Message should be removed from rx mailbox first */
616 case -2: /* invalid adapter was specified in this call */
623 DBG_TRC(("write: ret %d", ret));
627 static ssize_t divas_read(struct file *file, char __user *buf,
628 size_t count, loff_t * ppos)
632 if (!file->private_data) {
633 file->private_data = diva_xdi_open_adapter(file, buf,
637 if (!file->private_data) {
641 ret = diva_xdi_read(file->private_data, file,
642 buf, count, xdi_copy_to_user);
644 case -1: /* RX mailbox is empty */
647 case -2: /* no memory, mailbox was cleared, last command is failed */
650 case -3: /* can't copy to user, retry */
654 DBG_TRC(("read: ret %d", ret));
658 static unsigned int divas_poll(struct file *file, poll_table * wait)
660 if (!file->private_data) {
663 return (POLLIN | POLLRDNORM);
666 static const struct file_operations divas_fops = {
667 .owner = THIS_MODULE,
670 .write = divas_write,
673 .release = divas_release
676 static void divas_unregister_chrdev(void)
678 unregister_chrdev(major, DEVNAME);
681 static int DIVA_INIT_FUNCTION divas_register_chrdev(void)
683 if ((major = register_chrdev(0, DEVNAME, &divas_fops)) < 0)
685 printk(KERN_ERR "%s: failed to create /dev entry.\n",
693 /* --------------------------------------------------------------------------
695 -------------------------------------------------------------------------- */
696 static int __devinit divas_init_one(struct pci_dev *pdev,
697 const struct pci_device_id *ent)
703 DBG_TRC(("%s bus: %08x fn: %08x insertion.\n",
704 CardProperties[ent->driver_data].Name,
705 pdev->bus->number, pdev->devfn))
706 printk(KERN_INFO "%s: %s bus: %08x fn: %08x insertion.\n",
707 DRIVERLNAME, CardProperties[ent->driver_data].Name,
708 pdev->bus->number, pdev->devfn);
710 if (pci_enable_device(pdev)) {
711 DBG_TRC(("%s: %s bus: %08x fn: %08x device init failed.\n",
713 CardProperties[ent->driver_data].Name,
717 "%s: %s bus: %08x fn: %08x device init failed.\n",
719 CardProperties[ent->driver_data].
720 Name, pdev->bus->number,
725 pci_set_master(pdev);
727 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
729 DBG_TRC(("%s: bus: %08x fn: %08x fix latency.\n",
730 DRIVERLNAME, pdev->bus->number, pdev->devfn))
732 "%s: bus: %08x fn: %08x fix latency.\n",
733 DRIVERLNAME, pdev->bus->number, pdev->devfn);
734 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency);
737 if (!(pdiva = diva_driver_add_card(pdev, ent->driver_data))) {
738 DBG_TRC(("%s: %s bus: %08x fn: %08x card init failed.\n",
740 CardProperties[ent->driver_data].Name,
744 "%s: %s bus: %08x fn: %08x card init failed.\n",
746 CardProperties[ent->driver_data].
747 Name, pdev->bus->number,
752 pci_set_drvdata(pdev, pdiva);
757 static void __devexit divas_remove_one(struct pci_dev *pdev)
759 void *pdiva = pci_get_drvdata(pdev);
761 DBG_TRC(("bus: %08x fn: %08x removal.\n",
762 pdev->bus->number, pdev->devfn))
763 printk(KERN_INFO "%s: bus: %08x fn: %08x removal.\n",
764 DRIVERLNAME, pdev->bus->number, pdev->devfn);
767 diva_driver_remove_card(pdiva);
772 /* --------------------------------------------------------------------------
773 Driver Load / Startup
774 -------------------------------------------------------------------------- */
775 static int DIVA_INIT_FUNCTION divas_init(void)
780 printk(KERN_INFO "%s\n", DRIVERNAME);
781 printk(KERN_INFO "%s: Rel:%s Rev:", DRIVERLNAME, DRIVERRELEASE_DIVAS);
782 strcpy(tmprev, main_revision);
783 printk("%s Build: %s(%s)\n", getrev(tmprev),
784 diva_xdi_common_code_build, DIVA_BUILD);
785 printk(KERN_INFO "%s: support for: ", DRIVERLNAME);
786 #ifdef CONFIG_ISDN_DIVAS_BRIPCI
789 #ifdef CONFIG_ISDN_DIVAS_PRIPCI
792 printk("adapters\n");
794 if (!divasfunc_init(dbgmask)) {
795 printk(KERN_ERR "%s: failed to connect to DIDD.\n",
801 if (!divas_register_chrdev()) {
809 if (!create_divas_proc()) {
812 divas_unregister_chrdev();
815 printk(KERN_ERR "%s: failed to create proc entry.\n",
821 if ((ret = pci_register_driver(&diva_pci_driver))) {
824 divas_unregister_chrdev();
827 printk(KERN_ERR "%s: failed to init pci driver.\n",
831 printk(KERN_INFO "%s: started with major %d\n", DRIVERLNAME, major);
837 /* --------------------------------------------------------------------------
839 -------------------------------------------------------------------------- */
840 static void DIVA_EXIT_FUNCTION divas_exit(void)
842 pci_unregister_driver(&diva_pci_driver);
844 divas_unregister_chrdev();
847 printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
850 module_init(divas_init);
851 module_exit(divas_exit);