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 <asm/uaccess.h>
17 #include <linux/ioport.h>
18 #include <linux/workqueue.h>
19 #include <linux/pci.h>
20 #include <linux/smp_lock.h>
21 #include <linux/interrupt.h>
22 #include <linux/list.h>
23 #include <linux/poll.h>
24 #include <linux/kmod.h>
36 #include "xdi_adapter.h"
41 static char *main_revision = "$Revision: 1.55.4.6 $";
47 MODULE_DESCRIPTION("Kernel driver for Eicon DIVA Server cards");
48 MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
49 MODULE_LICENSE("GPL");
51 module_param(dbgmask, int, 0);
52 MODULE_PARM_DESC(dbgmask, "initial debug mask");
54 static char *DRIVERNAME =
55 "Eicon DIVA Server driver (http://www.melware.net)";
56 static char *DRIVERLNAME = "divas";
57 static char *DEVNAME = "Divas";
58 char *DRIVERRELEASE_DIVAS = "2.0";
60 extern irqreturn_t diva_os_irq_wrapper(int irq, void *context);
61 extern int create_divas_proc(void);
62 extern void remove_divas_proc(void);
63 extern void diva_get_vserial_number(PISDN_ADAPTER IoAdapter, char *buf);
64 extern int divasfunc_init(int dbgmask);
65 extern void divasfunc_exit(void);
67 typedef struct _diva_os_thread_dpc {
68 struct tasklet_struct divas_task;
69 diva_os_soft_isr_t *psoft_isr;
70 } diva_os_thread_dpc_t;
72 /* --------------------------------------------------------------------------
73 PCI driver interface section
74 -------------------------------------------------------------------------- */
76 vendor, device Vendor and device ID to match (or PCI_ANY_ID)
77 subvendor, Subsystem vendor and device ID to match (or PCI_ANY_ID)
79 class, Device class to match. The class_mask tells which bits
80 class_mask of the class are honored during the comparison.
81 driver_data Data private to the driver.
84 #if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2)
85 #define PCI_DEVICE_ID_EICON_MAESTRAP_2 0xE015
88 #if !defined(PCI_DEVICE_ID_EICON_4BRI_VOIP)
89 #define PCI_DEVICE_ID_EICON_4BRI_VOIP 0xE016
92 #if !defined(PCI_DEVICE_ID_EICON_4BRI_2_VOIP)
93 #define PCI_DEVICE_ID_EICON_4BRI_2_VOIP 0xE017
96 #if !defined(PCI_DEVICE_ID_EICON_BRI2M_2)
97 #define PCI_DEVICE_ID_EICON_BRI2M_2 0xE018
100 #if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP)
101 #define PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP 0xE019
104 #if !defined(PCI_DEVICE_ID_EICON_2F)
105 #define PCI_DEVICE_ID_EICON_2F 0xE01A
108 #if !defined(PCI_DEVICE_ID_EICON_BRI2M_2_VOIP)
109 #define PCI_DEVICE_ID_EICON_BRI2M_2_VOIP 0xE01B
113 This table should be sorted by PCI device ID
115 static struct pci_device_id divas_pci_tbl[] = {
116 /* Diva Server BRI-2M PCI 0xE010 */
117 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRA,
118 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_MAESTRA_PCI},
119 /* Diva Server 4BRI-8M PCI 0xE012 */
120 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAQ,
121 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_Q_8M_PCI},
122 /* Diva Server 4BRI-8M 2.0 PCI 0xE013 */
123 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAQ_U,
124 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_Q_8M_V2_PCI},
125 /* Diva Server PRI-30M PCI 0xE014 */
126 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP,
127 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_P_30M_PCI},
128 /* Diva Server PRI 2.0 adapter 0xE015 */
129 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2,
130 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_P_30M_V2_PCI},
131 /* Diva Server Voice 4BRI-8M PCI 0xE016 */
132 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_4BRI_VOIP,
133 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_Q_8M_PCI},
134 /* Diva Server Voice 4BRI-8M 2.0 PCI 0xE017 */
135 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_4BRI_2_VOIP,
136 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_Q_8M_V2_PCI},
137 /* Diva Server BRI-2M 2.0 PCI 0xE018 */
138 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_BRI2M_2,
139 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_B_2M_V2_PCI},
140 /* Diva Server Voice PRI 2.0 PCI 0xE019 */
141 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP,
142 PCI_ANY_ID, PCI_ANY_ID, 0, 0,
143 CARDTYPE_DIVASRV_VOICE_P_30M_V2_PCI},
144 /* Diva Server 2FX 0xE01A */
145 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_2F,
146 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_B_2F_PCI},
147 /* Diva Server Voice BRI-2M 2.0 PCI 0xE01B */
148 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_BRI2M_2_VOIP,
149 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_B_2M_V2_PCI},
150 {0,} /* 0 terminated list. */
152 MODULE_DEVICE_TABLE(pci, divas_pci_tbl);
154 static int divas_init_one(struct pci_dev *pdev,
155 const struct pci_device_id *ent);
156 static void __devexit divas_remove_one(struct pci_dev *pdev);
158 static struct pci_driver diva_pci_driver = {
160 .probe = divas_init_one,
161 .remove = __devexit_p(divas_remove_one),
162 .id_table = divas_pci_tbl,
165 /*********************************************************
166 ** little helper functions
167 *********************************************************/
168 static char *getrev(const char *revision)
172 if ((p = strchr(revision, ':'))) {
174 p = strchr(rev, '$');
181 void diva_log_info(unsigned char *format, ...)
184 unsigned char line[160];
186 va_start(args, format);
187 vsnprintf(line, sizeof(line), format, args);
190 printk(KERN_INFO "%s: %s\n", DRIVERLNAME, line);
193 void divas_get_version(char *p)
197 strcpy(tmprev, main_revision);
198 sprintf(p, "%s: %s(%s) %s(%s) major=%d\n", DRIVERLNAME, DRIVERRELEASE_DIVAS,
199 getrev(tmprev), diva_xdi_common_code_build, DIVA_BUILD, major);
202 /* --------------------------------------------------------------------------
204 -------------------------------------------------------------------------- */
205 byte diva_os_get_pci_bus(void *pci_dev_handle)
207 struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle;
208 return ((byte) pdev->bus->number);
211 byte diva_os_get_pci_func(void *pci_dev_handle)
213 struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle;
214 return ((byte) pdev->devfn);
217 unsigned long divasa_get_pci_irq(unsigned char bus, unsigned char func,
218 void *pci_dev_handle)
220 unsigned char irq = 0;
221 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
225 return ((unsigned long) irq);
228 unsigned long divasa_get_pci_bar(unsigned char bus, unsigned char func,
229 int bar, void *pci_dev_handle)
231 unsigned long ret = 0;
232 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
235 ret = dev->resource[bar].start;
238 DBG_TRC(("GOT BAR[%d]=%08x", bar, ret));
241 unsigned long type = (ret & 0x00000001);
242 if (type & PCI_BASE_ADDRESS_SPACE_IO) {
244 ret &= PCI_BASE_ADDRESS_IO_MASK;
246 DBG_TRC((" memory"));
247 ret &= PCI_BASE_ADDRESS_MEM_MASK;
249 DBG_TRC((" final=%08x", ret));
255 void PCIwrite(byte bus, byte func, int offset, void *data, int length,
256 void *pci_dev_handle)
258 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
262 pci_write_config_byte(dev, offset,
263 *(unsigned char *) data);
266 pci_write_config_word(dev, offset,
267 *(unsigned short *) data);
270 pci_write_config_dword(dev, offset,
271 *(unsigned int *) data);
274 default: /* buffer */
275 if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */
276 dword *p = (dword *) data;
280 pci_write_config_dword(dev, offset,
284 } else { /* copy as byte stream */
285 byte *p = (byte *) data;
288 pci_write_config_byte(dev, offset,
296 void PCIread(byte bus, byte func, int offset, void *data, int length,
297 void *pci_dev_handle)
299 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
303 pci_read_config_byte(dev, offset, (unsigned char *) data);
306 pci_read_config_word(dev, offset, (unsigned short *) data);
309 pci_read_config_dword(dev, offset, (unsigned int *) data);
312 default: /* buffer */
313 if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */
314 dword *p = (dword *) data;
318 pci_read_config_dword(dev, offset,
322 } else { /* copy as byte stream */
323 byte *p = (byte *) data;
326 pci_read_config_byte(dev, offset,
335 Init map with DMA pages. It is not problem if some allocations fail -
336 the channels that will not get one DMA page will use standard PIO
339 static void *diva_pci_alloc_consistent(struct pci_dev *hwdev,
341 dma_addr_t * dma_handle,
344 void *addr = pci_alloc_consistent(hwdev, size, dma_handle);
351 void diva_init_dma_map(void *hdev,
352 struct _diva_dma_map_entry **ppmap, int nentries)
354 struct pci_dev *pdev = (struct pci_dev *) hdev;
355 struct _diva_dma_map_entry *pmap =
356 diva_alloc_dma_map(hdev, nentries);
360 dma_addr_t dma_handle;
364 for (i = 0; i < nentries; i++) {
365 if (!(cpu_addr = diva_pci_alloc_consistent(pdev,
372 diva_init_dma_map_entry(pmap, i, cpu_addr,
375 DBG_TRC(("dma map alloc [%d]=(%08lx:%08x:%08lx)",
376 i, (unsigned long) cpu_addr,
378 (unsigned long) addr_handle))}
385 Free all contained in the map entries and memory used by the map
386 Should be always called after adapter removal from DIDD array
388 void diva_free_dma_map(void *hdev, struct _diva_dma_map_entry *pmap)
390 struct pci_dev *pdev = (struct pci_dev *) hdev;
394 dma_addr_t dma_handle;
397 for (i = 0; (pmap != 0); i++) {
398 diva_get_dma_map_entry(pmap, i, &cpu_addr, &phys_addr);
402 addr_handle = diva_get_entry_handle(pmap, i);
403 dma_handle = (dma_addr_t) phys_addr;
404 pci_free_consistent(pdev, PAGE_SIZE, addr_handle,
406 DBG_TRC(("dma map free [%d]=(%08lx:%08x:%08lx)", i,
407 (unsigned long) cpu_addr, (dword) dma_handle,
408 (unsigned long) addr_handle))
411 diva_free_dma_mapping(pmap);
415 /*********************************************************
416 ** I/O port utilities
417 *********************************************************/
420 diva_os_register_io_port(void *adapter, int on, unsigned long port,
421 unsigned long length, const char *name, int id)
424 if (!request_region(port, length, name)) {
425 DBG_ERR(("A: I/O: can't register port=%08x", port))
429 release_region(port, length);
434 void __iomem *divasa_remap_pci_bar(diva_os_xdi_adapter_t *a, int id, unsigned long bar, unsigned long area_length)
436 void __iomem *ret = ioremap(bar, area_length);
437 DBG_TRC(("remap(%08x)->%p", bar, ret));
441 void divasa_unmap_pci_bar(void __iomem *bar)
448 /*********************************************************
450 *********************************************************/
451 byte __inline__ inpp(void __iomem *addr)
453 return (inb((unsigned long) addr));
456 word __inline__ inppw(void __iomem *addr)
458 return (inw((unsigned long) addr));
461 void __inline__ inppw_buffer(void __iomem *addr, void *P, int length)
463 insw((unsigned long) addr, (word *) P, length >> 1);
466 void __inline__ outppw_buffer(void __iomem *addr, void *P, int length)
468 outsw((unsigned long) addr, (word *) P, length >> 1);
471 void __inline__ outppw(void __iomem *addr, word w)
473 outw(w, (unsigned long) addr);
476 void __inline__ outpp(void __iomem *addr, word p)
478 outb(p, (unsigned long) addr);
481 /* --------------------------------------------------------------------------
483 -------------------------------------------------------------------------- */
484 int diva_os_register_irq(void *context, byte irq, const char *name)
486 int result = request_irq(irq, diva_os_irq_wrapper,
487 IRQF_DISABLED | IRQF_SHARED, name, context);
491 void diva_os_remove_irq(void *context, byte irq)
493 free_irq(irq, context);
496 /* --------------------------------------------------------------------------
497 DPC framework implementation
498 -------------------------------------------------------------------------- */
499 static void diva_os_dpc_proc(unsigned long context)
501 diva_os_thread_dpc_t *psoft_isr = (diva_os_thread_dpc_t *) context;
502 diva_os_soft_isr_t *pisr = psoft_isr->psoft_isr;
504 (*(pisr->callback)) (pisr, pisr->callback_context);
507 int diva_os_initialize_soft_isr(diva_os_soft_isr_t * psoft_isr,
508 diva_os_soft_isr_callback_t callback,
509 void *callback_context)
511 diva_os_thread_dpc_t *pdpc;
513 pdpc = (diva_os_thread_dpc_t *) diva_os_malloc(0, sizeof(*pdpc));
514 if (!(psoft_isr->object = pdpc)) {
517 memset(pdpc, 0x00, sizeof(*pdpc));
518 psoft_isr->callback = callback;
519 psoft_isr->callback_context = callback_context;
520 pdpc->psoft_isr = psoft_isr;
521 tasklet_init(&pdpc->divas_task, diva_os_dpc_proc, (unsigned long)pdpc);
526 int diva_os_schedule_soft_isr(diva_os_soft_isr_t * psoft_isr)
528 if (psoft_isr && psoft_isr->object) {
529 diva_os_thread_dpc_t *pdpc =
530 (diva_os_thread_dpc_t *) psoft_isr->object;
532 tasklet_schedule(&pdpc->divas_task);
538 int diva_os_cancel_soft_isr(diva_os_soft_isr_t * psoft_isr)
543 void diva_os_remove_soft_isr(diva_os_soft_isr_t * psoft_isr)
545 if (psoft_isr && psoft_isr->object) {
546 diva_os_thread_dpc_t *pdpc =
547 (diva_os_thread_dpc_t *) psoft_isr->object;
550 tasklet_kill(&pdpc->divas_task);
551 flush_scheduled_work();
552 mem = psoft_isr->object;
553 psoft_isr->object = NULL;
554 diva_os_free(0, mem);
559 * kernel/user space copy functions
562 xdi_copy_to_user(void *os_handle, void __user *dst, const void *src, int length)
564 if (copy_to_user(dst, src, length)) {
571 xdi_copy_from_user(void *os_handle, void *dst, const void __user *src, int length)
573 if (copy_from_user(dst, src, length)) {
580 * device node operations
582 static int divas_open(struct inode *inode, struct file *file)
587 static int divas_release(struct inode *inode, struct file *file)
589 if (file->private_data) {
590 diva_xdi_close_adapter(file->private_data, file);
595 static ssize_t divas_write(struct file *file, const char __user *buf,
596 size_t count, loff_t * ppos)
600 if (!file->private_data) {
601 file->private_data = diva_xdi_open_adapter(file, buf,
605 if (!file->private_data) {
609 ret = diva_xdi_write(file->private_data, file,
610 buf, count, xdi_copy_from_user);
612 case -1: /* Message should be removed from rx mailbox first */
615 case -2: /* invalid adapter was specified in this call */
622 DBG_TRC(("write: ret %d", ret));
626 static ssize_t divas_read(struct file *file, char __user *buf,
627 size_t count, loff_t * ppos)
631 if (!file->private_data) {
632 file->private_data = diva_xdi_open_adapter(file, buf,
636 if (!file->private_data) {
640 ret = diva_xdi_read(file->private_data, file,
641 buf, count, xdi_copy_to_user);
643 case -1: /* RX mailbox is empty */
646 case -2: /* no memory, mailbox was cleared, last command is failed */
649 case -3: /* can't copy to user, retry */
653 DBG_TRC(("read: ret %d", ret));
657 static unsigned int divas_poll(struct file *file, poll_table * wait)
659 if (!file->private_data) {
662 return (POLLIN | POLLRDNORM);
665 static const struct file_operations divas_fops = {
666 .owner = THIS_MODULE,
669 .write = divas_write,
672 .release = divas_release
675 static void divas_unregister_chrdev(void)
677 unregister_chrdev(major, DEVNAME);
680 static int DIVA_INIT_FUNCTION divas_register_chrdev(void)
682 if ((major = register_chrdev(0, DEVNAME, &divas_fops)) < 0)
684 printk(KERN_ERR "%s: failed to create /dev entry.\n",
692 /* --------------------------------------------------------------------------
694 -------------------------------------------------------------------------- */
695 static int __devinit divas_init_one(struct pci_dev *pdev,
696 const struct pci_device_id *ent)
702 DBG_TRC(("%s bus: %08x fn: %08x insertion.\n",
703 CardProperties[ent->driver_data].Name,
704 pdev->bus->number, pdev->devfn))
705 printk(KERN_INFO "%s: %s bus: %08x fn: %08x insertion.\n",
706 DRIVERLNAME, CardProperties[ent->driver_data].Name,
707 pdev->bus->number, pdev->devfn);
709 if (pci_enable_device(pdev)) {
710 DBG_TRC(("%s: %s bus: %08x fn: %08x device init failed.\n",
712 CardProperties[ent->driver_data].Name,
716 "%s: %s bus: %08x fn: %08x device init failed.\n",
718 CardProperties[ent->driver_data].
719 Name, pdev->bus->number,
724 pci_set_master(pdev);
726 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
728 DBG_TRC(("%s: bus: %08x fn: %08x fix latency.\n",
729 DRIVERLNAME, pdev->bus->number, pdev->devfn))
731 "%s: bus: %08x fn: %08x fix latency.\n",
732 DRIVERLNAME, pdev->bus->number, pdev->devfn);
733 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency);
736 if (!(pdiva = diva_driver_add_card(pdev, ent->driver_data))) {
737 DBG_TRC(("%s: %s bus: %08x fn: %08x card init failed.\n",
739 CardProperties[ent->driver_data].Name,
743 "%s: %s bus: %08x fn: %08x card init failed.\n",
745 CardProperties[ent->driver_data].
746 Name, pdev->bus->number,
751 pci_set_drvdata(pdev, pdiva);
756 static void __devexit divas_remove_one(struct pci_dev *pdev)
758 void *pdiva = pci_get_drvdata(pdev);
760 DBG_TRC(("bus: %08x fn: %08x removal.\n",
761 pdev->bus->number, pdev->devfn))
762 printk(KERN_INFO "%s: bus: %08x fn: %08x removal.\n",
763 DRIVERLNAME, pdev->bus->number, pdev->devfn);
766 diva_driver_remove_card(pdiva);
771 /* --------------------------------------------------------------------------
772 Driver Load / Startup
773 -------------------------------------------------------------------------- */
774 static int DIVA_INIT_FUNCTION divas_init(void)
779 printk(KERN_INFO "%s\n", DRIVERNAME);
780 printk(KERN_INFO "%s: Rel:%s Rev:", DRIVERLNAME, DRIVERRELEASE_DIVAS);
781 strcpy(tmprev, main_revision);
782 printk("%s Build: %s(%s)\n", getrev(tmprev),
783 diva_xdi_common_code_build, DIVA_BUILD);
784 printk(KERN_INFO "%s: support for: ", DRIVERLNAME);
785 #ifdef CONFIG_ISDN_DIVAS_BRIPCI
788 #ifdef CONFIG_ISDN_DIVAS_PRIPCI
791 printk("adapters\n");
793 if (!divasfunc_init(dbgmask)) {
794 printk(KERN_ERR "%s: failed to connect to DIDD.\n",
800 if (!divas_register_chrdev()) {
808 if (!create_divas_proc()) {
811 divas_unregister_chrdev();
814 printk(KERN_ERR "%s: failed to create proc entry.\n",
820 if ((ret = pci_register_driver(&diva_pci_driver))) {
823 divas_unregister_chrdev();
826 printk(KERN_ERR "%s: failed to init pci driver.\n",
830 printk(KERN_INFO "%s: started with major %d\n", DRIVERLNAME, major);
836 /* --------------------------------------------------------------------------
838 -------------------------------------------------------------------------- */
839 static void DIVA_EXIT_FUNCTION divas_exit(void)
841 pci_unregister_driver(&diva_pci_driver);
843 divas_unregister_chrdev();
846 printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
849 module_init(divas_init);
850 module_exit(divas_exit);