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 struct pt_regs *regs);
63 extern int create_divas_proc(void);
64 extern void remove_divas_proc(void);
65 extern void diva_get_vserial_number(PISDN_ADAPTER IoAdapter, char *buf);
66 extern int divasfunc_init(int dbgmask);
67 extern void divasfunc_exit(void);
69 typedef struct _diva_os_thread_dpc {
70 struct tasklet_struct divas_task;
71 diva_os_soft_isr_t *psoft_isr;
72 } diva_os_thread_dpc_t;
74 /* --------------------------------------------------------------------------
75 PCI driver interface section
76 -------------------------------------------------------------------------- */
78 vendor, device Vendor and device ID to match (or PCI_ANY_ID)
79 subvendor, Subsystem vendor and device ID to match (or PCI_ANY_ID)
81 class, Device class to match. The class_mask tells which bits
82 class_mask of the class are honored during the comparison.
83 driver_data Data private to the driver.
86 #if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2)
87 #define PCI_DEVICE_ID_EICON_MAESTRAP_2 0xE015
90 #if !defined(PCI_DEVICE_ID_EICON_4BRI_VOIP)
91 #define PCI_DEVICE_ID_EICON_4BRI_VOIP 0xE016
94 #if !defined(PCI_DEVICE_ID_EICON_4BRI_2_VOIP)
95 #define PCI_DEVICE_ID_EICON_4BRI_2_VOIP 0xE017
98 #if !defined(PCI_DEVICE_ID_EICON_BRI2M_2)
99 #define PCI_DEVICE_ID_EICON_BRI2M_2 0xE018
102 #if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP)
103 #define PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP 0xE019
106 #if !defined(PCI_DEVICE_ID_EICON_2F)
107 #define PCI_DEVICE_ID_EICON_2F 0xE01A
110 #if !defined(PCI_DEVICE_ID_EICON_BRI2M_2_VOIP)
111 #define PCI_DEVICE_ID_EICON_BRI2M_2_VOIP 0xE01B
115 This table should be sorted by PCI device ID
117 static struct pci_device_id divas_pci_tbl[] = {
118 /* Diva Server BRI-2M PCI 0xE010 */
119 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRA,
120 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_MAESTRA_PCI},
121 /* Diva Server 4BRI-8M PCI 0xE012 */
122 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAQ,
123 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_Q_8M_PCI},
124 /* Diva Server 4BRI-8M 2.0 PCI 0xE013 */
125 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAQ_U,
126 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_Q_8M_V2_PCI},
127 /* Diva Server PRI-30M PCI 0xE014 */
128 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP,
129 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_P_30M_PCI},
130 /* Diva Server PRI 2.0 adapter 0xE015 */
131 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2,
132 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_P_30M_V2_PCI},
133 /* Diva Server Voice 4BRI-8M PCI 0xE016 */
134 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_4BRI_VOIP,
135 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_Q_8M_PCI},
136 /* Diva Server Voice 4BRI-8M 2.0 PCI 0xE017 */
137 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_4BRI_2_VOIP,
138 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_Q_8M_V2_PCI},
139 /* Diva Server BRI-2M 2.0 PCI 0xE018 */
140 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_BRI2M_2,
141 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_B_2M_V2_PCI},
142 /* Diva Server Voice PRI 2.0 PCI 0xE019 */
143 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP,
144 PCI_ANY_ID, PCI_ANY_ID, 0, 0,
145 CARDTYPE_DIVASRV_VOICE_P_30M_V2_PCI},
146 /* Diva Server 2FX 0xE01A */
147 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_2F,
148 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_B_2F_PCI},
149 /* Diva Server Voice BRI-2M 2.0 PCI 0xE01B */
150 {PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_BRI2M_2_VOIP,
151 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_B_2M_V2_PCI},
152 {0,} /* 0 terminated list. */
154 MODULE_DEVICE_TABLE(pci, divas_pci_tbl);
156 static int divas_init_one(struct pci_dev *pdev,
157 const struct pci_device_id *ent);
158 static void __devexit divas_remove_one(struct pci_dev *pdev);
160 static struct pci_driver diva_pci_driver = {
162 .probe = divas_init_one,
163 .remove = __devexit_p(divas_remove_one),
164 .id_table = divas_pci_tbl,
167 /*********************************************************
168 ** little helper functions
169 *********************************************************/
170 static char *getrev(const char *revision)
174 if ((p = strchr(revision, ':'))) {
176 p = strchr(rev, '$');
183 void diva_log_info(unsigned char *format, ...)
186 unsigned char line[160];
188 va_start(args, format);
189 vsprintf(line, format, args);
192 printk(KERN_INFO "%s: %s\n", DRIVERLNAME, line);
195 void divas_get_version(char *p)
199 strcpy(tmprev, main_revision);
200 sprintf(p, "%s: %s(%s) %s(%s) major=%d\n", DRIVERLNAME, DRIVERRELEASE_DIVAS,
201 getrev(tmprev), diva_xdi_common_code_build, DIVA_BUILD, major);
204 /* --------------------------------------------------------------------------
206 -------------------------------------------------------------------------- */
207 byte diva_os_get_pci_bus(void *pci_dev_handle)
209 struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle;
210 return ((byte) pdev->bus->number);
213 byte diva_os_get_pci_func(void *pci_dev_handle)
215 struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle;
216 return ((byte) pdev->devfn);
219 unsigned long divasa_get_pci_irq(unsigned char bus, unsigned char func,
220 void *pci_dev_handle)
222 unsigned char irq = 0;
223 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
227 return ((unsigned long) irq);
230 unsigned long divasa_get_pci_bar(unsigned char bus, unsigned char func,
231 int bar, void *pci_dev_handle)
233 unsigned long ret = 0;
234 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
237 ret = dev->resource[bar].start;
240 DBG_TRC(("GOT BAR[%d]=%08x", bar, ret));
243 unsigned long type = (ret & 0x00000001);
244 if (type & PCI_BASE_ADDRESS_SPACE_IO) {
246 ret &= PCI_BASE_ADDRESS_IO_MASK;
248 DBG_TRC((" memory"));
249 ret &= PCI_BASE_ADDRESS_MEM_MASK;
251 DBG_TRC((" final=%08x", ret));
257 void PCIwrite(byte bus, byte func, int offset, void *data, int length,
258 void *pci_dev_handle)
260 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
264 pci_write_config_byte(dev, offset,
265 *(unsigned char *) data);
268 pci_write_config_word(dev, offset,
269 *(unsigned short *) data);
272 pci_write_config_dword(dev, offset,
273 *(unsigned int *) data);
276 default: /* buffer */
277 if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */
278 dword *p = (dword *) data;
282 pci_write_config_dword(dev, offset,
286 } else { /* copy as byte stream */
287 byte *p = (byte *) data;
290 pci_write_config_byte(dev, offset,
298 void PCIread(byte bus, byte func, int offset, void *data, int length,
299 void *pci_dev_handle)
301 struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
305 pci_read_config_byte(dev, offset, (unsigned char *) data);
308 pci_read_config_word(dev, offset, (unsigned short *) data);
311 pci_read_config_dword(dev, offset, (unsigned int *) data);
314 default: /* buffer */
315 if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */
316 dword *p = (dword *) data;
320 pci_read_config_dword(dev, offset,
324 } else { /* copy as byte stream */
325 byte *p = (byte *) data;
328 pci_read_config_byte(dev, offset,
337 Init map with DMA pages. It is not problem if some allocations fail -
338 the channels that will not get one DMA page will use standard PIO
341 static void *diva_pci_alloc_consistent(struct pci_dev *hwdev,
343 dma_addr_t * dma_handle,
346 void *addr = pci_alloc_consistent(hwdev, size, dma_handle);
353 void diva_init_dma_map(void *hdev,
354 struct _diva_dma_map_entry **ppmap, int nentries)
356 struct pci_dev *pdev = (struct pci_dev *) hdev;
357 struct _diva_dma_map_entry *pmap =
358 diva_alloc_dma_map(hdev, nentries);
362 dma_addr_t dma_handle;
366 for (i = 0; i < nentries; i++) {
367 if (!(cpu_addr = diva_pci_alloc_consistent(pdev,
374 diva_init_dma_map_entry(pmap, i, cpu_addr,
377 DBG_TRC(("dma map alloc [%d]=(%08lx:%08x:%08lx)",
378 i, (unsigned long) cpu_addr,
380 (unsigned long) addr_handle))}
387 Free all contained in the map entries and memory used by the map
388 Should be always called after adapter removal from DIDD array
390 void diva_free_dma_map(void *hdev, struct _diva_dma_map_entry *pmap)
392 struct pci_dev *pdev = (struct pci_dev *) hdev;
396 dma_addr_t dma_handle;
399 for (i = 0; (pmap != 0); i++) {
400 diva_get_dma_map_entry(pmap, i, &cpu_addr, &phys_addr);
404 addr_handle = diva_get_entry_handle(pmap, i);
405 dma_handle = (dma_addr_t) phys_addr;
406 pci_free_consistent(pdev, PAGE_SIZE, addr_handle,
408 DBG_TRC(("dma map free [%d]=(%08lx:%08x:%08lx)", i,
409 (unsigned long) cpu_addr, (dword) dma_handle,
410 (unsigned long) addr_handle))
413 diva_free_dma_mapping(pmap);
417 /*********************************************************
418 ** I/O port utilities
419 *********************************************************/
422 diva_os_register_io_port(void *adapter, int on, unsigned long port,
423 unsigned long length, const char *name, int id)
426 if (!request_region(port, length, name)) {
427 DBG_ERR(("A: I/O: can't register port=%08x", port))
431 release_region(port, length);
436 void __iomem *divasa_remap_pci_bar(diva_os_xdi_adapter_t *a, int id, unsigned long bar, unsigned long area_length)
438 void __iomem *ret = ioremap(bar, area_length);
439 DBG_TRC(("remap(%08x)->%p", bar, ret));
443 void divasa_unmap_pci_bar(void __iomem *bar)
450 /*********************************************************
452 *********************************************************/
453 byte __inline__ inpp(void __iomem *addr)
455 return (inb((unsigned long) addr));
458 word __inline__ inppw(void __iomem *addr)
460 return (inw((unsigned long) addr));
463 void __inline__ inppw_buffer(void __iomem *addr, void *P, int length)
465 insw((unsigned long) addr, (word *) P, length >> 1);
468 void __inline__ outppw_buffer(void __iomem *addr, void *P, int length)
470 outsw((unsigned long) addr, (word *) P, length >> 1);
473 void __inline__ outppw(void __iomem *addr, word w)
475 outw(w, (unsigned long) addr);
478 void __inline__ outpp(void __iomem *addr, word p)
480 outb(p, (unsigned long) addr);
483 /* --------------------------------------------------------------------------
485 -------------------------------------------------------------------------- */
486 int diva_os_register_irq(void *context, byte irq, const char *name)
488 int result = request_irq(irq, diva_os_irq_wrapper,
489 IRQF_DISABLED | IRQF_SHARED, name, context);
493 void diva_os_remove_irq(void *context, byte irq)
495 free_irq(irq, context);
498 /* --------------------------------------------------------------------------
499 DPC framework implementation
500 -------------------------------------------------------------------------- */
501 static void diva_os_dpc_proc(unsigned long context)
503 diva_os_thread_dpc_t *psoft_isr = (diva_os_thread_dpc_t *) context;
504 diva_os_soft_isr_t *pisr = psoft_isr->psoft_isr;
506 (*(pisr->callback)) (pisr, pisr->callback_context);
509 int diva_os_initialize_soft_isr(diva_os_soft_isr_t * psoft_isr,
510 diva_os_soft_isr_callback_t callback,
511 void *callback_context)
513 diva_os_thread_dpc_t *pdpc;
515 pdpc = (diva_os_thread_dpc_t *) diva_os_malloc(0, sizeof(*pdpc));
516 if (!(psoft_isr->object = pdpc)) {
519 memset(pdpc, 0x00, sizeof(*pdpc));
520 psoft_isr->callback = callback;
521 psoft_isr->callback_context = callback_context;
522 pdpc->psoft_isr = psoft_isr;
523 tasklet_init(&pdpc->divas_task, diva_os_dpc_proc, (unsigned long)pdpc);
528 int diva_os_schedule_soft_isr(diva_os_soft_isr_t * psoft_isr)
530 if (psoft_isr && psoft_isr->object) {
531 diva_os_thread_dpc_t *pdpc =
532 (diva_os_thread_dpc_t *) psoft_isr->object;
534 tasklet_schedule(&pdpc->divas_task);
540 int diva_os_cancel_soft_isr(diva_os_soft_isr_t * psoft_isr)
545 void diva_os_remove_soft_isr(diva_os_soft_isr_t * psoft_isr)
547 if (psoft_isr && psoft_isr->object) {
548 diva_os_thread_dpc_t *pdpc =
549 (diva_os_thread_dpc_t *) psoft_isr->object;
552 tasklet_kill(&pdpc->divas_task);
553 flush_scheduled_work();
554 mem = psoft_isr->object;
555 psoft_isr->object = NULL;
556 diva_os_free(0, mem);
561 * kernel/user space copy functions
564 xdi_copy_to_user(void *os_handle, void __user *dst, const void *src, int length)
566 if (copy_to_user(dst, src, length)) {
573 xdi_copy_from_user(void *os_handle, void *dst, const void __user *src, int length)
575 if (copy_from_user(dst, src, length)) {
582 * device node operations
584 static int divas_open(struct inode *inode, struct file *file)
589 static int divas_release(struct inode *inode, struct file *file)
591 if (file->private_data) {
592 diva_xdi_close_adapter(file->private_data, file);
597 static ssize_t divas_write(struct file *file, const char __user *buf,
598 size_t count, loff_t * ppos)
602 if (!file->private_data) {
603 file->private_data = diva_xdi_open_adapter(file, buf,
607 if (!file->private_data) {
611 ret = diva_xdi_write(file->private_data, file,
612 buf, count, xdi_copy_from_user);
614 case -1: /* Message should be removed from rx mailbox first */
617 case -2: /* invalid adapter was specified in this call */
624 DBG_TRC(("write: ret %d", ret));
628 static ssize_t divas_read(struct file *file, char __user *buf,
629 size_t count, loff_t * ppos)
633 if (!file->private_data) {
634 file->private_data = diva_xdi_open_adapter(file, buf,
638 if (!file->private_data) {
642 ret = diva_xdi_read(file->private_data, file,
643 buf, count, xdi_copy_to_user);
645 case -1: /* RX mailbox is empty */
648 case -2: /* no memory, mailbox was cleared, last command is failed */
651 case -3: /* can't copy to user, retry */
655 DBG_TRC(("read: ret %d", ret));
659 static unsigned int divas_poll(struct file *file, poll_table * wait)
661 if (!file->private_data) {
664 return (POLLIN | POLLRDNORM);
667 static struct file_operations divas_fops = {
668 .owner = THIS_MODULE,
671 .write = divas_write,
674 .release = divas_release
677 static void divas_unregister_chrdev(void)
679 unregister_chrdev(major, DEVNAME);
682 static int DIVA_INIT_FUNCTION divas_register_chrdev(void)
684 if ((major = register_chrdev(0, DEVNAME, &divas_fops)) < 0)
686 printk(KERN_ERR "%s: failed to create /dev entry.\n",
694 /* --------------------------------------------------------------------------
696 -------------------------------------------------------------------------- */
697 static int __devinit divas_init_one(struct pci_dev *pdev,
698 const struct pci_device_id *ent)
704 DBG_TRC(("%s bus: %08x fn: %08x insertion.\n",
705 CardProperties[ent->driver_data].Name,
706 pdev->bus->number, pdev->devfn))
707 printk(KERN_INFO "%s: %s bus: %08x fn: %08x insertion.\n",
708 DRIVERLNAME, CardProperties[ent->driver_data].Name,
709 pdev->bus->number, pdev->devfn);
711 if (pci_enable_device(pdev)) {
712 DBG_TRC(("%s: %s bus: %08x fn: %08x device init failed.\n",
714 CardProperties[ent->driver_data].Name,
718 "%s: %s bus: %08x fn: %08x device init failed.\n",
720 CardProperties[ent->driver_data].
721 Name, pdev->bus->number,
726 pci_set_master(pdev);
728 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
730 DBG_TRC(("%s: bus: %08x fn: %08x fix latency.\n",
731 DRIVERLNAME, pdev->bus->number, pdev->devfn))
733 "%s: bus: %08x fn: %08x fix latency.\n",
734 DRIVERLNAME, pdev->bus->number, pdev->devfn);
735 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency);
738 if (!(pdiva = diva_driver_add_card(pdev, ent->driver_data))) {
739 DBG_TRC(("%s: %s bus: %08x fn: %08x card init failed.\n",
741 CardProperties[ent->driver_data].Name,
745 "%s: %s bus: %08x fn: %08x card init failed.\n",
747 CardProperties[ent->driver_data].
748 Name, pdev->bus->number,
753 pci_set_drvdata(pdev, pdiva);
758 static void __devexit divas_remove_one(struct pci_dev *pdev)
760 void *pdiva = pci_get_drvdata(pdev);
762 DBG_TRC(("bus: %08x fn: %08x removal.\n",
763 pdev->bus->number, pdev->devfn))
764 printk(KERN_INFO "%s: bus: %08x fn: %08x removal.\n",
765 DRIVERLNAME, pdev->bus->number, pdev->devfn);
768 diva_driver_remove_card(pdiva);
773 /* --------------------------------------------------------------------------
774 Driver Load / Startup
775 -------------------------------------------------------------------------- */
776 static int DIVA_INIT_FUNCTION divas_init(void)
781 printk(KERN_INFO "%s\n", DRIVERNAME);
782 printk(KERN_INFO "%s: Rel:%s Rev:", DRIVERLNAME, DRIVERRELEASE_DIVAS);
783 strcpy(tmprev, main_revision);
784 printk("%s Build: %s(%s)\n", getrev(tmprev),
785 diva_xdi_common_code_build, DIVA_BUILD);
786 printk(KERN_INFO "%s: support for: ", DRIVERLNAME);
787 #ifdef CONFIG_ISDN_DIVAS_BRIPCI
790 #ifdef CONFIG_ISDN_DIVAS_PRIPCI
793 printk("adapters\n");
795 if (!divasfunc_init(dbgmask)) {
796 printk(KERN_ERR "%s: failed to connect to DIDD.\n",
802 if (!divas_register_chrdev()) {
810 if (!create_divas_proc()) {
813 divas_unregister_chrdev();
816 printk(KERN_ERR "%s: failed to create proc entry.\n",
822 if ((ret = pci_register_driver(&diva_pci_driver))) {
825 divas_unregister_chrdev();
828 printk(KERN_ERR "%s: failed to init pci driver.\n",
832 printk(KERN_INFO "%s: started with major %d\n", DRIVERLNAME, major);
838 /* --------------------------------------------------------------------------
840 -------------------------------------------------------------------------- */
841 static void DIVA_EXIT_FUNCTION divas_exit(void)
843 pci_unregister_driver(&diva_pci_driver);
845 divas_unregister_chrdev();
848 printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
851 module_init(divas_init);
852 module_exit(divas_exit);