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/pci.h>
19 #include <linux/interrupt.h>
20 #include <linux/list.h>
21 #include <linux/poll.h>
22 #include <linux/kmod.h>
34 #include "xdi_adapter.h"
39 static char *main_revision = "$Revision: 1.55.4.6 $";
45 MODULE_DESCRIPTION("Kernel driver for Eicon DIVA Server cards");
46 MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
47 MODULE_LICENSE("GPL");
49 module_param(dbgmask, int, 0);
50 MODULE_PARM_DESC(dbgmask, "initial debug mask");
52 static char *DRIVERNAME =
53 "Eicon DIVA Server driver (http://www.melware.net)";
54 static char *DRIVERLNAME = "divas";
55 static char *DEVNAME = "Divas";
56 char *DRIVERRELEASE_DIVAS = "2.0";
58 extern irqreturn_t diva_os_irq_wrapper(int irq, void *context);
59 extern int create_divas_proc(void);
60 extern void remove_divas_proc(void);
61 extern void diva_get_vserial_number(PISDN_ADAPTER IoAdapter, char *buf);
62 extern int divasfunc_init(int dbgmask);
63 extern void divasfunc_exit(void);
65 typedef struct _diva_os_thread_dpc {
66 struct tasklet_struct divas_task;
67 diva_os_soft_isr_t *psoft_isr;
68 } diva_os_thread_dpc_t;
70 /* --------------------------------------------------------------------------
71 PCI driver interface section
72 -------------------------------------------------------------------------- */
74 vendor, device Vendor and device ID to match (or PCI_ANY_ID)
75 subvendor, Subsystem vendor and device ID to match (or PCI_ANY_ID)
77 class, Device class to match. The class_mask tells which bits
78 class_mask of the class are honored during the comparison.
79 driver_data Data private to the driver.
82 #if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2)
83 #define PCI_DEVICE_ID_EICON_MAESTRAP_2 0xE015
86 #if !defined(PCI_DEVICE_ID_EICON_4BRI_VOIP)
87 #define PCI_DEVICE_ID_EICON_4BRI_VOIP 0xE016
90 #if !defined(PCI_DEVICE_ID_EICON_4BRI_2_VOIP)
91 #define PCI_DEVICE_ID_EICON_4BRI_2_VOIP 0xE017
94 #if !defined(PCI_DEVICE_ID_EICON_BRI2M_2)
95 #define PCI_DEVICE_ID_EICON_BRI2M_2 0xE018
98 #if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP)
99 #define PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP 0xE019
102 #if !defined(PCI_DEVICE_ID_EICON_2F)
103 #define PCI_DEVICE_ID_EICON_2F 0xE01A
106 #if !defined(PCI_DEVICE_ID_EICON_BRI2M_2_VOIP)
107 #define PCI_DEVICE_ID_EICON_BRI2M_2_VOIP 0xE01B
111 This table should be sorted by PCI device ID
113 static struct pci_device_id divas_pci_tbl[] = {
114 /* Diva Server BRI-2M PCI 0xE010 */
115 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRA),
116 CARDTYPE_MAESTRA_PCI },
117 /* Diva Server 4BRI-8M PCI 0xE012 */
118 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRAQ),
119 CARDTYPE_DIVASRV_Q_8M_PCI },
120 /* Diva Server 4BRI-8M 2.0 PCI 0xE013 */
121 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRAQ_U),
122 CARDTYPE_DIVASRV_Q_8M_V2_PCI },
123 /* Diva Server PRI-30M PCI 0xE014 */
124 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRAP),
125 CARDTYPE_DIVASRV_P_30M_PCI },
126 /* Diva Server PRI 2.0 adapter 0xE015 */
127 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2),
128 CARDTYPE_DIVASRV_P_30M_V2_PCI },
129 /* Diva Server Voice 4BRI-8M PCI 0xE016 */
130 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_4BRI_VOIP),
131 CARDTYPE_DIVASRV_VOICE_Q_8M_PCI },
132 /* Diva Server Voice 4BRI-8M 2.0 PCI 0xE017 */
133 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_4BRI_2_VOIP),
134 CARDTYPE_DIVASRV_VOICE_Q_8M_V2_PCI },
135 /* Diva Server BRI-2M 2.0 PCI 0xE018 */
136 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_BRI2M_2),
137 CARDTYPE_DIVASRV_B_2M_V2_PCI },
138 /* Diva Server Voice PRI 2.0 PCI 0xE019 */
139 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP),
140 CARDTYPE_DIVASRV_VOICE_P_30M_V2_PCI },
141 /* Diva Server 2FX 0xE01A */
142 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_2F),
143 CARDTYPE_DIVASRV_B_2F_PCI },
144 /* Diva Server Voice BRI-2M 2.0 PCI 0xE01B */
145 { PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_BRI2M_2_VOIP),
146 CARDTYPE_DIVASRV_VOICE_B_2M_V2_PCI },
147 { 0, } /* 0 terminated list. */
149 MODULE_DEVICE_TABLE(pci, divas_pci_tbl);
151 static int divas_init_one(struct pci_dev *pdev,
152 const struct pci_device_id *ent);
153 static void divas_remove_one(struct pci_dev *pdev);
155 static struct pci_driver diva_pci_driver = {
157 .probe = divas_init_one,
158 .remove = divas_remove_one,
159 .id_table = divas_pci_tbl,
162 /*********************************************************
163 ** little helper functions
164 *********************************************************/
165 static char *getrev(const char *revision)
169 if ((p = strchr(revision, ':'))) {
171 p = strchr(rev, '$');
178 void diva_log_info(unsigned char *format, ...)
181 unsigned char line[160];
183 va_start(args, format);
184 vsnprintf(line, sizeof(line), format, args);
187 printk(KERN_INFO "%s: %s\n", DRIVERLNAME, line);
190 void divas_get_version(char *p)
194 strcpy(tmprev, main_revision);
195 sprintf(p, "%s: %s(%s) %s(%s) major=%d\n", DRIVERLNAME, DRIVERRELEASE_DIVAS,
196 getrev(tmprev), diva_xdi_common_code_build, DIVA_BUILD, major);
199 /* --------------------------------------------------------------------------
201 -------------------------------------------------------------------------- */
202 byte diva_os_get_pci_bus(void *pci_dev_handle)
204 struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle;
205 return ((byte) pdev->bus->number);
208 byte diva_os_get_pci_func(void *pci_dev_handle)
210 struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle;
211 return ((byte) pdev->devfn);
214 unsigned long divasa_get_pci_irq(unsigned char bus, unsigned char func,
215 void *pci_dev_handle)
217 unsigned char irq = 0;
218 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
222 return ((unsigned long) irq);
225 unsigned long divasa_get_pci_bar(unsigned char bus, unsigned char func,
226 int bar, void *pci_dev_handle)
228 unsigned long ret = 0;
229 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
232 ret = dev->resource[bar].start;
235 DBG_TRC(("GOT BAR[%d]=%08x", bar, ret));
238 unsigned long type = (ret & 0x00000001);
239 if (type & PCI_BASE_ADDRESS_SPACE_IO) {
241 ret &= PCI_BASE_ADDRESS_IO_MASK;
243 DBG_TRC((" memory"));
244 ret &= PCI_BASE_ADDRESS_MEM_MASK;
246 DBG_TRC((" final=%08x", ret));
252 void PCIwrite(byte bus, byte func, int offset, void *data, int length,
253 void *pci_dev_handle)
255 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
259 pci_write_config_byte(dev, offset,
260 *(unsigned char *) data);
263 pci_write_config_word(dev, offset,
264 *(unsigned short *) data);
267 pci_write_config_dword(dev, offset,
268 *(unsigned int *) data);
271 default: /* buffer */
272 if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */
273 dword *p = (dword *) data;
277 pci_write_config_dword(dev, offset,
281 } else { /* copy as byte stream */
282 byte *p = (byte *) data;
285 pci_write_config_byte(dev, offset,
293 void PCIread(byte bus, byte func, int offset, void *data, int length,
294 void *pci_dev_handle)
296 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
300 pci_read_config_byte(dev, offset, (unsigned char *) data);
303 pci_read_config_word(dev, offset, (unsigned short *) data);
306 pci_read_config_dword(dev, offset, (unsigned int *) data);
309 default: /* buffer */
310 if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */
311 dword *p = (dword *) data;
315 pci_read_config_dword(dev, offset,
319 } else { /* copy as byte stream */
320 byte *p = (byte *) data;
323 pci_read_config_byte(dev, offset,
332 Init map with DMA pages. It is not problem if some allocations fail -
333 the channels that will not get one DMA page will use standard PIO
336 static void *diva_pci_alloc_consistent(struct pci_dev *hwdev,
338 dma_addr_t *dma_handle,
341 void *addr = pci_alloc_consistent(hwdev, size, dma_handle);
348 void diva_init_dma_map(void *hdev,
349 struct _diva_dma_map_entry **ppmap, int nentries)
351 struct pci_dev *pdev = (struct pci_dev *) hdev;
352 struct _diva_dma_map_entry *pmap =
353 diva_alloc_dma_map(hdev, nentries);
357 dma_addr_t dma_handle;
361 for (i = 0; i < nentries; i++) {
362 if (!(cpu_addr = diva_pci_alloc_consistent(pdev,
369 diva_init_dma_map_entry(pmap, i, cpu_addr,
372 DBG_TRC(("dma map alloc [%d]=(%08lx:%08x:%08lx)",
373 i, (unsigned long) cpu_addr,
375 (unsigned long) addr_handle))}
382 Free all contained in the map entries and memory used by the map
383 Should be always called after adapter removal from DIDD array
385 void diva_free_dma_map(void *hdev, struct _diva_dma_map_entry *pmap)
387 struct pci_dev *pdev = (struct pci_dev *) hdev;
391 dma_addr_t dma_handle;
394 for (i = 0; (pmap != NULL); i++) {
395 diva_get_dma_map_entry(pmap, i, &cpu_addr, &phys_addr);
399 addr_handle = diva_get_entry_handle(pmap, i);
400 dma_handle = (dma_addr_t) phys_addr;
401 pci_free_consistent(pdev, PAGE_SIZE, addr_handle,
403 DBG_TRC(("dma map free [%d]=(%08lx:%08x:%08lx)", i,
404 (unsigned long) cpu_addr, (dword) dma_handle,
405 (unsigned long) addr_handle))
408 diva_free_dma_mapping(pmap);
412 /*********************************************************
413 ** I/O port utilities
414 *********************************************************/
417 diva_os_register_io_port(void *adapter, int on, unsigned long port,
418 unsigned long length, const char *name, int id)
421 if (!request_region(port, length, name)) {
422 DBG_ERR(("A: I/O: can't register port=%08x", port))
426 release_region(port, length);
431 void __iomem *divasa_remap_pci_bar(diva_os_xdi_adapter_t *a, int id, unsigned long bar, unsigned long area_length)
433 void __iomem *ret = ioremap(bar, area_length);
434 DBG_TRC(("remap(%08x)->%p", bar, ret));
438 void divasa_unmap_pci_bar(void __iomem *bar)
445 /*********************************************************
447 *********************************************************/
448 inline byte inpp(void __iomem *addr)
450 return (inb((unsigned long) addr));
453 inline word inppw(void __iomem *addr)
455 return (inw((unsigned long) addr));
458 inline void inppw_buffer(void __iomem *addr, void *P, int length)
460 insw((unsigned long) addr, (word *) P, length >> 1);
463 inline void outppw_buffer(void __iomem *addr, void *P, int length)
465 outsw((unsigned long) addr, (word *) P, length >> 1);
468 inline void outppw(void __iomem *addr, word w)
470 outw(w, (unsigned long) addr);
473 inline void outpp(void __iomem *addr, word p)
475 outb(p, (unsigned long) addr);
478 /* --------------------------------------------------------------------------
480 -------------------------------------------------------------------------- */
481 int diva_os_register_irq(void *context, byte irq, const char *name)
483 int result = request_irq(irq, diva_os_irq_wrapper,
484 IRQF_SHARED, name, context);
488 void diva_os_remove_irq(void *context, byte irq)
490 free_irq(irq, context);
493 /* --------------------------------------------------------------------------
494 DPC framework implementation
495 -------------------------------------------------------------------------- */
496 static void diva_os_dpc_proc(unsigned long context)
498 diva_os_thread_dpc_t *psoft_isr = (diva_os_thread_dpc_t *) context;
499 diva_os_soft_isr_t *pisr = psoft_isr->psoft_isr;
501 (*(pisr->callback)) (pisr, pisr->callback_context);
504 int diva_os_initialize_soft_isr(diva_os_soft_isr_t *psoft_isr,
505 diva_os_soft_isr_callback_t callback,
506 void *callback_context)
508 diva_os_thread_dpc_t *pdpc;
510 pdpc = (diva_os_thread_dpc_t *) diva_os_malloc(0, sizeof(*pdpc));
511 if (!(psoft_isr->object = pdpc)) {
514 memset(pdpc, 0x00, sizeof(*pdpc));
515 psoft_isr->callback = callback;
516 psoft_isr->callback_context = callback_context;
517 pdpc->psoft_isr = psoft_isr;
518 tasklet_init(&pdpc->divas_task, diva_os_dpc_proc, (unsigned long)pdpc);
523 int diva_os_schedule_soft_isr(diva_os_soft_isr_t *psoft_isr)
525 if (psoft_isr && psoft_isr->object) {
526 diva_os_thread_dpc_t *pdpc =
527 (diva_os_thread_dpc_t *) psoft_isr->object;
529 tasklet_schedule(&pdpc->divas_task);
535 int diva_os_cancel_soft_isr(diva_os_soft_isr_t *psoft_isr)
540 void diva_os_remove_soft_isr(diva_os_soft_isr_t *psoft_isr)
542 if (psoft_isr && psoft_isr->object) {
543 diva_os_thread_dpc_t *pdpc =
544 (diva_os_thread_dpc_t *) psoft_isr->object;
547 tasklet_kill(&pdpc->divas_task);
548 mem = psoft_isr->object;
549 psoft_isr->object = NULL;
550 diva_os_free(0, mem);
555 * kernel/user space copy functions
558 xdi_copy_to_user(void *os_handle, void __user *dst, const void *src, int length)
560 if (copy_to_user(dst, src, length)) {
567 xdi_copy_from_user(void *os_handle, void *dst, const void __user *src, int length)
569 if (copy_from_user(dst, src, length)) {
576 * device node operations
578 static int divas_open(struct inode *inode, struct file *file)
583 static int divas_release(struct inode *inode, struct file *file)
585 if (file->private_data) {
586 diva_xdi_close_adapter(file->private_data, file);
591 static ssize_t divas_write(struct file *file, const char __user *buf,
592 size_t count, loff_t *ppos)
594 diva_xdi_um_cfg_cmd_t msg;
597 if (!file->private_data) {
598 file->private_data = diva_xdi_open_adapter(file, buf,
601 if (!file->private_data)
603 ret = diva_xdi_write(file->private_data, file,
604 buf, count, &msg, xdi_copy_from_user);
606 ret = diva_xdi_write(file->private_data, file,
607 buf, count, NULL, xdi_copy_from_user);
611 case -1: /* Message should be removed from rx mailbox first */
614 case -2: /* invalid adapter was specified in this call */
621 DBG_TRC(("write: ret %d", ret));
625 static ssize_t divas_read(struct file *file, char __user *buf,
626 size_t count, loff_t *ppos)
628 diva_xdi_um_cfg_cmd_t msg;
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 __init 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 divas_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
701 DBG_TRC(("%s bus: %08x fn: %08x insertion.\n",
702 CardProperties[ent->driver_data].Name,
703 pdev->bus->number, pdev->devfn))
704 printk(KERN_INFO "%s: %s bus: %08x fn: %08x insertion.\n",
705 DRIVERLNAME, CardProperties[ent->driver_data].Name,
706 pdev->bus->number, pdev->devfn);
708 if (pci_enable_device(pdev)) {
709 DBG_TRC(("%s: %s bus: %08x fn: %08x device init failed.\n",
711 CardProperties[ent->driver_data].Name,
715 "%s: %s bus: %08x fn: %08x device init failed.\n",
717 CardProperties[ent->driver_data].
718 Name, pdev->bus->number,
723 pci_set_master(pdev);
725 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
727 DBG_TRC(("%s: bus: %08x fn: %08x fix latency.\n",
728 DRIVERLNAME, pdev->bus->number, pdev->devfn))
730 "%s: bus: %08x fn: %08x fix latency.\n",
731 DRIVERLNAME, pdev->bus->number, pdev->devfn);
732 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency);
735 if (!(pdiva = diva_driver_add_card(pdev, ent->driver_data))) {
736 DBG_TRC(("%s: %s bus: %08x fn: %08x card init failed.\n",
738 CardProperties[ent->driver_data].Name,
742 "%s: %s bus: %08x fn: %08x card init failed.\n",
744 CardProperties[ent->driver_data].
745 Name, pdev->bus->number,
750 pci_set_drvdata(pdev, pdiva);
755 static void divas_remove_one(struct pci_dev *pdev)
757 void *pdiva = pci_get_drvdata(pdev);
759 DBG_TRC(("bus: %08x fn: %08x removal.\n",
760 pdev->bus->number, pdev->devfn))
761 printk(KERN_INFO "%s: bus: %08x fn: %08x removal.\n",
762 DRIVERLNAME, pdev->bus->number, pdev->devfn);
765 diva_driver_remove_card(pdiva);
770 /* --------------------------------------------------------------------------
771 Driver Load / Startup
772 -------------------------------------------------------------------------- */
773 static int __init divas_init(void)
778 printk(KERN_INFO "%s\n", DRIVERNAME);
779 printk(KERN_INFO "%s: Rel:%s Rev:", DRIVERLNAME, DRIVERRELEASE_DIVAS);
780 strcpy(tmprev, main_revision);
781 printk("%s Build: %s(%s)\n", getrev(tmprev),
782 diva_xdi_common_code_build, DIVA_BUILD);
783 printk(KERN_INFO "%s: support for: ", DRIVERLNAME);
784 #ifdef CONFIG_ISDN_DIVAS_BRIPCI
787 #ifdef CONFIG_ISDN_DIVAS_PRIPCI
790 printk("adapters\n");
792 if (!divasfunc_init(dbgmask)) {
793 printk(KERN_ERR "%s: failed to connect to DIDD.\n",
799 if (!divas_register_chrdev()) {
807 if (!create_divas_proc()) {
809 divas_unregister_chrdev();
812 printk(KERN_ERR "%s: failed to create proc entry.\n",
818 if ((ret = pci_register_driver(&diva_pci_driver))) {
821 divas_unregister_chrdev();
824 printk(KERN_ERR "%s: failed to init pci driver.\n",
828 printk(KERN_INFO "%s: started with major %d\n", DRIVERLNAME, major);
834 /* --------------------------------------------------------------------------
836 -------------------------------------------------------------------------- */
837 static void __exit divas_exit(void)
839 pci_unregister_driver(&diva_pci_driver);
841 divas_unregister_chrdev();
844 printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
847 module_init(divas_init);
848 module_exit(divas_exit);