1 /* $Id: divasmain.c,v 1.55.4.6 2005/02/09 19:28:20 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/interrupt.h>
21 #include <linux/list.h>
22 #include <linux/poll.h>
23 #include <linux/kmod.h>
35 #include "xdi_adapter.h"
40 static char *main_revision
= "$Revision: 1.55.4.6 $";
46 MODULE_DESCRIPTION("Kernel driver for Eicon DIVA Server cards");
47 MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
48 MODULE_LICENSE("GPL");
50 module_param(dbgmask
, int, 0);
51 MODULE_PARM_DESC(dbgmask
, "initial debug mask");
53 static char *DRIVERNAME
=
54 "Eicon DIVA Server driver (http://www.melware.net)";
55 static char *DRIVERLNAME
= "divas";
56 static char *DEVNAME
= "Divas";
57 char *DRIVERRELEASE_DIVAS
= "2.0";
59 extern irqreturn_t
diva_os_irq_wrapper(int irq
, void *context
);
60 extern int create_divas_proc(void);
61 extern void remove_divas_proc(void);
62 extern void diva_get_vserial_number(PISDN_ADAPTER IoAdapter
, char *buf
);
63 extern int divasfunc_init(int dbgmask
);
64 extern void divasfunc_exit(void);
66 typedef struct _diva_os_thread_dpc
{
67 struct tasklet_struct divas_task
;
68 diva_os_soft_isr_t
*psoft_isr
;
69 } diva_os_thread_dpc_t
;
71 /* --------------------------------------------------------------------------
72 PCI driver interface section
73 -------------------------------------------------------------------------- */
75 vendor, device Vendor and device ID to match (or PCI_ANY_ID)
76 subvendor, Subsystem vendor and device ID to match (or PCI_ANY_ID)
78 class, Device class to match. The class_mask tells which bits
79 class_mask of the class are honored during the comparison.
80 driver_data Data private to the driver.
83 #if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2)
84 #define PCI_DEVICE_ID_EICON_MAESTRAP_2 0xE015
87 #if !defined(PCI_DEVICE_ID_EICON_4BRI_VOIP)
88 #define PCI_DEVICE_ID_EICON_4BRI_VOIP 0xE016
91 #if !defined(PCI_DEVICE_ID_EICON_4BRI_2_VOIP)
92 #define PCI_DEVICE_ID_EICON_4BRI_2_VOIP 0xE017
95 #if !defined(PCI_DEVICE_ID_EICON_BRI2M_2)
96 #define PCI_DEVICE_ID_EICON_BRI2M_2 0xE018
99 #if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP)
100 #define PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP 0xE019
103 #if !defined(PCI_DEVICE_ID_EICON_2F)
104 #define PCI_DEVICE_ID_EICON_2F 0xE01A
107 #if !defined(PCI_DEVICE_ID_EICON_BRI2M_2_VOIP)
108 #define PCI_DEVICE_ID_EICON_BRI2M_2_VOIP 0xE01B
112 This table should be sorted by PCI device ID
114 static struct pci_device_id divas_pci_tbl
[] = {
115 /* Diva Server BRI-2M PCI 0xE010 */
116 { PCI_VDEVICE(EICON
, PCI_DEVICE_ID_EICON_MAESTRA
),
117 CARDTYPE_MAESTRA_PCI
},
118 /* Diva Server 4BRI-8M PCI 0xE012 */
119 { PCI_VDEVICE(EICON
, PCI_DEVICE_ID_EICON_MAESTRAQ
),
120 CARDTYPE_DIVASRV_Q_8M_PCI
},
121 /* Diva Server 4BRI-8M 2.0 PCI 0xE013 */
122 { PCI_VDEVICE(EICON
, PCI_DEVICE_ID_EICON_MAESTRAQ_U
),
123 CARDTYPE_DIVASRV_Q_8M_V2_PCI
},
124 /* Diva Server PRI-30M PCI 0xE014 */
125 { PCI_VDEVICE(EICON
, PCI_DEVICE_ID_EICON_MAESTRAP
),
126 CARDTYPE_DIVASRV_P_30M_PCI
},
127 /* Diva Server PRI 2.0 adapter 0xE015 */
128 { PCI_VDEVICE(EICON
, PCI_DEVICE_ID_EICON_MAESTRAP_2
),
129 CARDTYPE_DIVASRV_P_30M_V2_PCI
},
130 /* Diva Server Voice 4BRI-8M PCI 0xE016 */
131 { PCI_VDEVICE(EICON
, PCI_DEVICE_ID_EICON_4BRI_VOIP
),
132 CARDTYPE_DIVASRV_VOICE_Q_8M_PCI
},
133 /* Diva Server Voice 4BRI-8M 2.0 PCI 0xE017 */
134 { PCI_VDEVICE(EICON
, PCI_DEVICE_ID_EICON_4BRI_2_VOIP
),
135 CARDTYPE_DIVASRV_VOICE_Q_8M_V2_PCI
},
136 /* Diva Server BRI-2M 2.0 PCI 0xE018 */
137 { PCI_VDEVICE(EICON
, PCI_DEVICE_ID_EICON_BRI2M_2
),
138 CARDTYPE_DIVASRV_B_2M_V2_PCI
},
139 /* Diva Server Voice PRI 2.0 PCI 0xE019 */
140 { PCI_VDEVICE(EICON
, PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP
),
141 CARDTYPE_DIVASRV_VOICE_P_30M_V2_PCI
},
142 /* Diva Server 2FX 0xE01A */
143 { PCI_VDEVICE(EICON
, PCI_DEVICE_ID_EICON_2F
),
144 CARDTYPE_DIVASRV_B_2F_PCI
},
145 /* Diva Server Voice BRI-2M 2.0 PCI 0xE01B */
146 { PCI_VDEVICE(EICON
, PCI_DEVICE_ID_EICON_BRI2M_2_VOIP
),
147 CARDTYPE_DIVASRV_VOICE_B_2M_V2_PCI
},
148 { 0, } /* 0 terminated list. */
150 MODULE_DEVICE_TABLE(pci
, divas_pci_tbl
);
152 static int divas_init_one(struct pci_dev
*pdev
,
153 const struct pci_device_id
*ent
);
154 static void __devexit
divas_remove_one(struct pci_dev
*pdev
);
156 static struct pci_driver diva_pci_driver
= {
158 .probe
= divas_init_one
,
159 .remove
= __devexit_p(divas_remove_one
),
160 .id_table
= divas_pci_tbl
,
163 /*********************************************************
164 ** little helper functions
165 *********************************************************/
166 static char *getrev(const char *revision
)
170 if ((p
= strchr(revision
, ':'))) {
172 p
= strchr(rev
, '$');
179 void diva_log_info(unsigned char *format
, ...)
182 unsigned char line
[160];
184 va_start(args
, format
);
185 vsnprintf(line
, sizeof(line
), format
, args
);
188 printk(KERN_INFO
"%s: %s\n", DRIVERLNAME
, line
);
191 void divas_get_version(char *p
)
195 strcpy(tmprev
, main_revision
);
196 sprintf(p
, "%s: %s(%s) %s(%s) major=%d\n", DRIVERLNAME
, DRIVERRELEASE_DIVAS
,
197 getrev(tmprev
), diva_xdi_common_code_build
, DIVA_BUILD
, major
);
200 /* --------------------------------------------------------------------------
202 -------------------------------------------------------------------------- */
203 byte
diva_os_get_pci_bus(void *pci_dev_handle
)
205 struct pci_dev
*pdev
= (struct pci_dev
*) pci_dev_handle
;
206 return ((byte
) pdev
->bus
->number
);
209 byte
diva_os_get_pci_func(void *pci_dev_handle
)
211 struct pci_dev
*pdev
= (struct pci_dev
*) pci_dev_handle
;
212 return ((byte
) pdev
->devfn
);
215 unsigned long divasa_get_pci_irq(unsigned char bus
, unsigned char func
,
216 void *pci_dev_handle
)
218 unsigned char irq
= 0;
219 struct pci_dev
*dev
= (struct pci_dev
*) pci_dev_handle
;
223 return ((unsigned long) irq
);
226 unsigned long divasa_get_pci_bar(unsigned char bus
, unsigned char func
,
227 int bar
, void *pci_dev_handle
)
229 unsigned long ret
= 0;
230 struct pci_dev
*dev
= (struct pci_dev
*) pci_dev_handle
;
233 ret
= dev
->resource
[bar
].start
;
236 DBG_TRC(("GOT BAR[%d]=%08x", bar
, ret
));
239 unsigned long type
= (ret
& 0x00000001);
240 if (type
& PCI_BASE_ADDRESS_SPACE_IO
) {
242 ret
&= PCI_BASE_ADDRESS_IO_MASK
;
244 DBG_TRC((" memory"));
245 ret
&= PCI_BASE_ADDRESS_MEM_MASK
;
247 DBG_TRC((" final=%08x", ret
));
253 void PCIwrite(byte bus
, byte func
, int offset
, void *data
, int length
,
254 void *pci_dev_handle
)
256 struct pci_dev
*dev
= (struct pci_dev
*) pci_dev_handle
;
260 pci_write_config_byte(dev
, offset
,
261 *(unsigned char *) data
);
264 pci_write_config_word(dev
, offset
,
265 *(unsigned short *) data
);
268 pci_write_config_dword(dev
, offset
,
269 *(unsigned int *) data
);
272 default: /* buffer */
273 if (!(length
% 4) && !(length
& 0x03)) { /* Copy as dword */
274 dword
*p
= (dword
*) data
;
278 pci_write_config_dword(dev
, offset
,
282 } else { /* copy as byte stream */
283 byte
*p
= (byte
*) data
;
286 pci_write_config_byte(dev
, offset
,
294 void PCIread(byte bus
, byte func
, int offset
, void *data
, int length
,
295 void *pci_dev_handle
)
297 struct pci_dev
*dev
= (struct pci_dev
*) pci_dev_handle
;
301 pci_read_config_byte(dev
, offset
, (unsigned char *) data
);
304 pci_read_config_word(dev
, offset
, (unsigned short *) data
);
307 pci_read_config_dword(dev
, offset
, (unsigned int *) data
);
310 default: /* buffer */
311 if (!(length
% 4) && !(length
& 0x03)) { /* Copy as dword */
312 dword
*p
= (dword
*) data
;
316 pci_read_config_dword(dev
, offset
,
320 } else { /* copy as byte stream */
321 byte
*p
= (byte
*) data
;
324 pci_read_config_byte(dev
, offset
,
333 Init map with DMA pages. It is not problem if some allocations fail -
334 the channels that will not get one DMA page will use standard PIO
337 static void *diva_pci_alloc_consistent(struct pci_dev
*hwdev
,
339 dma_addr_t
* dma_handle
,
342 void *addr
= pci_alloc_consistent(hwdev
, size
, dma_handle
);
349 void diva_init_dma_map(void *hdev
,
350 struct _diva_dma_map_entry
**ppmap
, int nentries
)
352 struct pci_dev
*pdev
= (struct pci_dev
*) hdev
;
353 struct _diva_dma_map_entry
*pmap
=
354 diva_alloc_dma_map(hdev
, nentries
);
358 dma_addr_t dma_handle
;
362 for (i
= 0; i
< nentries
; i
++) {
363 if (!(cpu_addr
= diva_pci_alloc_consistent(pdev
,
370 diva_init_dma_map_entry(pmap
, i
, cpu_addr
,
373 DBG_TRC(("dma map alloc [%d]=(%08lx:%08x:%08lx)",
374 i
, (unsigned long) cpu_addr
,
376 (unsigned long) addr_handle
))}
383 Free all contained in the map entries and memory used by the map
384 Should be always called after adapter removal from DIDD array
386 void diva_free_dma_map(void *hdev
, struct _diva_dma_map_entry
*pmap
)
388 struct pci_dev
*pdev
= (struct pci_dev
*) hdev
;
392 dma_addr_t dma_handle
;
395 for (i
= 0; (pmap
!= NULL
); i
++) {
396 diva_get_dma_map_entry(pmap
, i
, &cpu_addr
, &phys_addr
);
400 addr_handle
= diva_get_entry_handle(pmap
, i
);
401 dma_handle
= (dma_addr_t
) phys_addr
;
402 pci_free_consistent(pdev
, PAGE_SIZE
, addr_handle
,
404 DBG_TRC(("dma map free [%d]=(%08lx:%08x:%08lx)", i
,
405 (unsigned long) cpu_addr
, (dword
) dma_handle
,
406 (unsigned long) addr_handle
))
409 diva_free_dma_mapping(pmap
);
413 /*********************************************************
414 ** I/O port utilities
415 *********************************************************/
418 diva_os_register_io_port(void *adapter
, int on
, unsigned long port
,
419 unsigned long length
, const char *name
, int id
)
422 if (!request_region(port
, length
, name
)) {
423 DBG_ERR(("A: I/O: can't register port=%08x", port
))
427 release_region(port
, length
);
432 void __iomem
*divasa_remap_pci_bar(diva_os_xdi_adapter_t
*a
, int id
, unsigned long bar
, unsigned long area_length
)
434 void __iomem
*ret
= ioremap(bar
, area_length
);
435 DBG_TRC(("remap(%08x)->%p", bar
, ret
));
439 void divasa_unmap_pci_bar(void __iomem
*bar
)
446 /*********************************************************
448 *********************************************************/
449 byte __inline__
inpp(void __iomem
*addr
)
451 return (inb((unsigned long) addr
));
454 word __inline__
inppw(void __iomem
*addr
)
456 return (inw((unsigned long) addr
));
459 void __inline__
inppw_buffer(void __iomem
*addr
, void *P
, int length
)
461 insw((unsigned long) addr
, (word
*) P
, length
>> 1);
464 void __inline__
outppw_buffer(void __iomem
*addr
, void *P
, int length
)
466 outsw((unsigned long) addr
, (word
*) P
, length
>> 1);
469 void __inline__
outppw(void __iomem
*addr
, word w
)
471 outw(w
, (unsigned long) addr
);
474 void __inline__
outpp(void __iomem
*addr
, word p
)
476 outb(p
, (unsigned long) addr
);
479 /* --------------------------------------------------------------------------
481 -------------------------------------------------------------------------- */
482 int diva_os_register_irq(void *context
, byte irq
, const char *name
)
484 int result
= request_irq(irq
, diva_os_irq_wrapper
,
485 IRQF_DISABLED
| IRQF_SHARED
, name
, context
);
489 void diva_os_remove_irq(void *context
, byte irq
)
491 free_irq(irq
, context
);
494 /* --------------------------------------------------------------------------
495 DPC framework implementation
496 -------------------------------------------------------------------------- */
497 static void diva_os_dpc_proc(unsigned long context
)
499 diva_os_thread_dpc_t
*psoft_isr
= (diva_os_thread_dpc_t
*) context
;
500 diva_os_soft_isr_t
*pisr
= psoft_isr
->psoft_isr
;
502 (*(pisr
->callback
)) (pisr
, pisr
->callback_context
);
505 int diva_os_initialize_soft_isr(diva_os_soft_isr_t
* psoft_isr
,
506 diva_os_soft_isr_callback_t callback
,
507 void *callback_context
)
509 diva_os_thread_dpc_t
*pdpc
;
511 pdpc
= (diva_os_thread_dpc_t
*) diva_os_malloc(0, sizeof(*pdpc
));
512 if (!(psoft_isr
->object
= pdpc
)) {
515 memset(pdpc
, 0x00, sizeof(*pdpc
));
516 psoft_isr
->callback
= callback
;
517 psoft_isr
->callback_context
= callback_context
;
518 pdpc
->psoft_isr
= psoft_isr
;
519 tasklet_init(&pdpc
->divas_task
, diva_os_dpc_proc
, (unsigned long)pdpc
);
524 int diva_os_schedule_soft_isr(diva_os_soft_isr_t
* psoft_isr
)
526 if (psoft_isr
&& psoft_isr
->object
) {
527 diva_os_thread_dpc_t
*pdpc
=
528 (diva_os_thread_dpc_t
*) psoft_isr
->object
;
530 tasklet_schedule(&pdpc
->divas_task
);
536 int diva_os_cancel_soft_isr(diva_os_soft_isr_t
* psoft_isr
)
541 void diva_os_remove_soft_isr(diva_os_soft_isr_t
* psoft_isr
)
543 if (psoft_isr
&& psoft_isr
->object
) {
544 diva_os_thread_dpc_t
*pdpc
=
545 (diva_os_thread_dpc_t
*) psoft_isr
->object
;
548 tasklet_kill(&pdpc
->divas_task
);
549 flush_scheduled_work();
550 mem
= psoft_isr
->object
;
551 psoft_isr
->object
= NULL
;
552 diva_os_free(0, mem
);
557 * kernel/user space copy functions
560 xdi_copy_to_user(void *os_handle
, void __user
*dst
, const void *src
, int length
)
562 if (copy_to_user(dst
, src
, length
)) {
569 xdi_copy_from_user(void *os_handle
, void *dst
, const void __user
*src
, int length
)
571 if (copy_from_user(dst
, src
, length
)) {
578 * device node operations
580 static int divas_open(struct inode
*inode
, struct file
*file
)
585 static int divas_release(struct inode
*inode
, struct file
*file
)
587 if (file
->private_data
) {
588 diva_xdi_close_adapter(file
->private_data
, file
);
593 static ssize_t
divas_write(struct file
*file
, const char __user
*buf
,
594 size_t count
, loff_t
* ppos
)
598 if (!file
->private_data
) {
599 file
->private_data
= diva_xdi_open_adapter(file
, buf
,
603 if (!file
->private_data
) {
607 ret
= diva_xdi_write(file
->private_data
, file
,
608 buf
, count
, xdi_copy_from_user
);
610 case -1: /* Message should be removed from rx mailbox first */
613 case -2: /* invalid adapter was specified in this call */
620 DBG_TRC(("write: ret %d", ret
));
624 static ssize_t
divas_read(struct file
*file
, char __user
*buf
,
625 size_t count
, loff_t
* ppos
)
629 if (!file
->private_data
) {
630 file
->private_data
= diva_xdi_open_adapter(file
, buf
,
634 if (!file
->private_data
) {
638 ret
= diva_xdi_read(file
->private_data
, file
,
639 buf
, count
, xdi_copy_to_user
);
641 case -1: /* RX mailbox is empty */
644 case -2: /* no memory, mailbox was cleared, last command is failed */
647 case -3: /* can't copy to user, retry */
651 DBG_TRC(("read: ret %d", ret
));
655 static unsigned int divas_poll(struct file
*file
, poll_table
* wait
)
657 if (!file
->private_data
) {
660 return (POLLIN
| POLLRDNORM
);
663 static const struct file_operations divas_fops
= {
664 .owner
= THIS_MODULE
,
667 .write
= divas_write
,
670 .release
= divas_release
673 static void divas_unregister_chrdev(void)
675 unregister_chrdev(major
, DEVNAME
);
678 static int DIVA_INIT_FUNCTION
divas_register_chrdev(void)
680 if ((major
= register_chrdev(0, DEVNAME
, &divas_fops
)) < 0)
682 printk(KERN_ERR
"%s: failed to create /dev entry.\n",
690 /* --------------------------------------------------------------------------
692 -------------------------------------------------------------------------- */
693 static int __devinit
divas_init_one(struct pci_dev
*pdev
,
694 const struct pci_device_id
*ent
)
700 DBG_TRC(("%s bus: %08x fn: %08x insertion.\n",
701 CardProperties
[ent
->driver_data
].Name
,
702 pdev
->bus
->number
, pdev
->devfn
))
703 printk(KERN_INFO
"%s: %s bus: %08x fn: %08x insertion.\n",
704 DRIVERLNAME
, CardProperties
[ent
->driver_data
].Name
,
705 pdev
->bus
->number
, pdev
->devfn
);
707 if (pci_enable_device(pdev
)) {
708 DBG_TRC(("%s: %s bus: %08x fn: %08x device init failed.\n",
710 CardProperties
[ent
->driver_data
].Name
,
714 "%s: %s bus: %08x fn: %08x device init failed.\n",
716 CardProperties
[ent
->driver_data
].
717 Name
, pdev
->bus
->number
,
722 pci_set_master(pdev
);
724 pci_read_config_byte(pdev
, PCI_LATENCY_TIMER
, &pci_latency
);
726 DBG_TRC(("%s: bus: %08x fn: %08x fix latency.\n",
727 DRIVERLNAME
, pdev
->bus
->number
, pdev
->devfn
))
729 "%s: bus: %08x fn: %08x fix latency.\n",
730 DRIVERLNAME
, pdev
->bus
->number
, pdev
->devfn
);
731 pci_write_config_byte(pdev
, PCI_LATENCY_TIMER
, new_latency
);
734 if (!(pdiva
= diva_driver_add_card(pdev
, ent
->driver_data
))) {
735 DBG_TRC(("%s: %s bus: %08x fn: %08x card init failed.\n",
737 CardProperties
[ent
->driver_data
].Name
,
741 "%s: %s bus: %08x fn: %08x card init failed.\n",
743 CardProperties
[ent
->driver_data
].
744 Name
, pdev
->bus
->number
,
749 pci_set_drvdata(pdev
, pdiva
);
754 static void __devexit
divas_remove_one(struct pci_dev
*pdev
)
756 void *pdiva
= pci_get_drvdata(pdev
);
758 DBG_TRC(("bus: %08x fn: %08x removal.\n",
759 pdev
->bus
->number
, pdev
->devfn
))
760 printk(KERN_INFO
"%s: bus: %08x fn: %08x removal.\n",
761 DRIVERLNAME
, pdev
->bus
->number
, pdev
->devfn
);
764 diva_driver_remove_card(pdiva
);
769 /* --------------------------------------------------------------------------
770 Driver Load / Startup
771 -------------------------------------------------------------------------- */
772 static int DIVA_INIT_FUNCTION
divas_init(void)
777 printk(KERN_INFO
"%s\n", DRIVERNAME
);
778 printk(KERN_INFO
"%s: Rel:%s Rev:", DRIVERLNAME
, DRIVERRELEASE_DIVAS
);
779 strcpy(tmprev
, main_revision
);
780 printk("%s Build: %s(%s)\n", getrev(tmprev
),
781 diva_xdi_common_code_build
, DIVA_BUILD
);
782 printk(KERN_INFO
"%s: support for: ", DRIVERLNAME
);
783 #ifdef CONFIG_ISDN_DIVAS_BRIPCI
786 #ifdef CONFIG_ISDN_DIVAS_PRIPCI
789 printk("adapters\n");
791 if (!divasfunc_init(dbgmask
)) {
792 printk(KERN_ERR
"%s: failed to connect to DIDD.\n",
798 if (!divas_register_chrdev()) {
806 if (!create_divas_proc()) {
808 divas_unregister_chrdev();
811 printk(KERN_ERR
"%s: failed to create proc entry.\n",
817 if ((ret
= pci_register_driver(&diva_pci_driver
))) {
820 divas_unregister_chrdev();
823 printk(KERN_ERR
"%s: failed to init pci driver.\n",
827 printk(KERN_INFO
"%s: started with major %d\n", DRIVERLNAME
, major
);
833 /* --------------------------------------------------------------------------
835 -------------------------------------------------------------------------- */
836 static void DIVA_EXIT_FUNCTION
divas_exit(void)
838 pci_unregister_driver(&diva_pci_driver
);
840 divas_unregister_chrdev();
843 printk(KERN_INFO
"%s: module unloaded.\n", DRIVERLNAME
);
846 module_init(divas_init
);
847 module_exit(divas_exit
);