857 lines
21 KiB
C
857 lines
21 KiB
C
/* $Id: divasmain.c,v 1.55.4.6 2005/02/09 19:28:20 armin Exp $
|
|
*
|
|
* Low level driver for Eicon DIVA Server ISDN cards.
|
|
*
|
|
* Copyright 2000-2003 by Armin Schindler (mac@melware.de)
|
|
* Copyright 2000-2003 Cytronics & Melware (info@melware.de)
|
|
*
|
|
* This software may be used and distributed according to the terms
|
|
* of the GNU General Public License, incorporated herein by reference.
|
|
*/
|
|
|
|
#include <linux/config.h>
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/devfs_fs_kernel.h>
|
|
#include <asm/uaccess.h>
|
|
#include <asm/io.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/smp_lock.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/list.h>
|
|
#include <linux/poll.h>
|
|
#include <linux/kmod.h>
|
|
|
|
#include "platform.h"
|
|
#undef ID_MASK
|
|
#undef N_DATA
|
|
#include "pc.h"
|
|
#include "di_defs.h"
|
|
#include "divasync.h"
|
|
#include "diva.h"
|
|
#include "di.h"
|
|
#include "io.h"
|
|
#include "xdi_msg.h"
|
|
#include "xdi_adapter.h"
|
|
#include "xdi_vers.h"
|
|
#include "diva_dma.h"
|
|
#include "diva_pci.h"
|
|
|
|
static char *main_revision = "$Revision: 1.55.4.6 $";
|
|
|
|
static int major;
|
|
|
|
static int dbgmask;
|
|
|
|
MODULE_DESCRIPTION("Kernel driver for Eicon DIVA Server cards");
|
|
MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
module_param(dbgmask, int, 0);
|
|
MODULE_PARM_DESC(dbgmask, "initial debug mask");
|
|
|
|
static char *DRIVERNAME =
|
|
"Eicon DIVA Server driver (http://www.melware.net)";
|
|
static char *DRIVERLNAME = "divas";
|
|
static char *DEVNAME = "Divas";
|
|
char *DRIVERRELEASE_DIVAS = "2.0";
|
|
|
|
extern irqreturn_t diva_os_irq_wrapper(int irq, void *context,
|
|
struct pt_regs *regs);
|
|
extern int create_divas_proc(void);
|
|
extern void remove_divas_proc(void);
|
|
extern void diva_get_vserial_number(PISDN_ADAPTER IoAdapter, char *buf);
|
|
extern int divasfunc_init(int dbgmask);
|
|
extern void divasfunc_exit(void);
|
|
|
|
typedef struct _diva_os_thread_dpc {
|
|
struct tasklet_struct divas_task;
|
|
diva_os_soft_isr_t *psoft_isr;
|
|
} diva_os_thread_dpc_t;
|
|
|
|
/* --------------------------------------------------------------------------
|
|
PCI driver interface section
|
|
-------------------------------------------------------------------------- */
|
|
/*
|
|
vendor, device Vendor and device ID to match (or PCI_ANY_ID)
|
|
subvendor, Subsystem vendor and device ID to match (or PCI_ANY_ID)
|
|
subdevice
|
|
class, Device class to match. The class_mask tells which bits
|
|
class_mask of the class are honored during the comparison.
|
|
driver_data Data private to the driver.
|
|
*/
|
|
|
|
#if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2)
|
|
#define PCI_DEVICE_ID_EICON_MAESTRAP_2 0xE015
|
|
#endif
|
|
|
|
#if !defined(PCI_DEVICE_ID_EICON_4BRI_VOIP)
|
|
#define PCI_DEVICE_ID_EICON_4BRI_VOIP 0xE016
|
|
#endif
|
|
|
|
#if !defined(PCI_DEVICE_ID_EICON_4BRI_2_VOIP)
|
|
#define PCI_DEVICE_ID_EICON_4BRI_2_VOIP 0xE017
|
|
#endif
|
|
|
|
#if !defined(PCI_DEVICE_ID_EICON_BRI2M_2)
|
|
#define PCI_DEVICE_ID_EICON_BRI2M_2 0xE018
|
|
#endif
|
|
|
|
#if !defined(PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP)
|
|
#define PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP 0xE019
|
|
#endif
|
|
|
|
#if !defined(PCI_DEVICE_ID_EICON_2F)
|
|
#define PCI_DEVICE_ID_EICON_2F 0xE01A
|
|
#endif
|
|
|
|
#if !defined(PCI_DEVICE_ID_EICON_BRI2M_2_VOIP)
|
|
#define PCI_DEVICE_ID_EICON_BRI2M_2_VOIP 0xE01B
|
|
#endif
|
|
|
|
/*
|
|
This table should be sorted by PCI device ID
|
|
*/
|
|
static struct pci_device_id divas_pci_tbl[] = {
|
|
/* Diva Server BRI-2M PCI 0xE010 */
|
|
{PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRA,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_MAESTRA_PCI},
|
|
/* Diva Server 4BRI-8M PCI 0xE012 */
|
|
{PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAQ,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_Q_8M_PCI},
|
|
/* Diva Server 4BRI-8M 2.0 PCI 0xE013 */
|
|
{PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAQ_U,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_Q_8M_V2_PCI},
|
|
/* Diva Server PRI-30M PCI 0xE014 */
|
|
{PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_P_30M_PCI},
|
|
/* Diva Server PRI 2.0 adapter 0xE015 */
|
|
{PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_P_30M_V2_PCI},
|
|
/* Diva Server Voice 4BRI-8M PCI 0xE016 */
|
|
{PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_4BRI_VOIP,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_Q_8M_PCI},
|
|
/* Diva Server Voice 4BRI-8M 2.0 PCI 0xE017 */
|
|
{PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_4BRI_2_VOIP,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_Q_8M_V2_PCI},
|
|
/* Diva Server BRI-2M 2.0 PCI 0xE018 */
|
|
{PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_BRI2M_2,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_B_2M_V2_PCI},
|
|
/* Diva Server Voice PRI 2.0 PCI 0xE019 */
|
|
{PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_MAESTRAP_2_VOIP,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0,
|
|
CARDTYPE_DIVASRV_VOICE_P_30M_V2_PCI},
|
|
/* Diva Server 2FX 0xE01A */
|
|
{PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_2F,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_B_2F_PCI},
|
|
/* Diva Server Voice BRI-2M 2.0 PCI 0xE01B */
|
|
{PCI_VENDOR_ID_EICON, PCI_DEVICE_ID_EICON_BRI2M_2_VOIP,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CARDTYPE_DIVASRV_VOICE_B_2M_V2_PCI},
|
|
{0,} /* 0 terminated list. */
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, divas_pci_tbl);
|
|
|
|
static int divas_init_one(struct pci_dev *pdev,
|
|
const struct pci_device_id *ent);
|
|
static void __devexit divas_remove_one(struct pci_dev *pdev);
|
|
|
|
static struct pci_driver diva_pci_driver = {
|
|
.name = "divas",
|
|
.probe = divas_init_one,
|
|
.remove = __devexit_p(divas_remove_one),
|
|
.id_table = divas_pci_tbl,
|
|
};
|
|
|
|
/*********************************************************
|
|
** little helper functions
|
|
*********************************************************/
|
|
static char *getrev(const char *revision)
|
|
{
|
|
char *rev;
|
|
char *p;
|
|
if ((p = strchr(revision, ':'))) {
|
|
rev = p + 2;
|
|
p = strchr(rev, '$');
|
|
*--p = 0;
|
|
} else
|
|
rev = "1.0";
|
|
return rev;
|
|
}
|
|
|
|
void diva_log_info(unsigned char *format, ...)
|
|
{
|
|
va_list args;
|
|
unsigned char line[160];
|
|
|
|
va_start(args, format);
|
|
vsprintf(line, format, args);
|
|
va_end(args);
|
|
|
|
printk(KERN_INFO "%s: %s\n", DRIVERLNAME, line);
|
|
}
|
|
|
|
void divas_get_version(char *p)
|
|
{
|
|
char tmprev[32];
|
|
|
|
strcpy(tmprev, main_revision);
|
|
sprintf(p, "%s: %s(%s) %s(%s) major=%d\n", DRIVERLNAME, DRIVERRELEASE_DIVAS,
|
|
getrev(tmprev), diva_xdi_common_code_build, DIVA_BUILD, major);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------
|
|
PCI Bus services
|
|
-------------------------------------------------------------------------- */
|
|
byte diva_os_get_pci_bus(void *pci_dev_handle)
|
|
{
|
|
struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle;
|
|
return ((byte) pdev->bus->number);
|
|
}
|
|
|
|
byte diva_os_get_pci_func(void *pci_dev_handle)
|
|
{
|
|
struct pci_dev *pdev = (struct pci_dev *) pci_dev_handle;
|
|
return ((byte) pdev->devfn);
|
|
}
|
|
|
|
unsigned long divasa_get_pci_irq(unsigned char bus, unsigned char func,
|
|
void *pci_dev_handle)
|
|
{
|
|
unsigned char irq = 0;
|
|
struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
|
|
|
|
irq = dev->irq;
|
|
|
|
return ((unsigned long) irq);
|
|
}
|
|
|
|
unsigned long divasa_get_pci_bar(unsigned char bus, unsigned char func,
|
|
int bar, void *pci_dev_handle)
|
|
{
|
|
unsigned long ret = 0;
|
|
struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
|
|
|
|
if (bar < 6) {
|
|
ret = dev->resource[bar].start;
|
|
}
|
|
|
|
DBG_TRC(("GOT BAR[%d]=%08x", bar, ret));
|
|
|
|
{
|
|
unsigned long type = (ret & 0x00000001);
|
|
if (type & PCI_BASE_ADDRESS_SPACE_IO) {
|
|
DBG_TRC((" I/O"));
|
|
ret &= PCI_BASE_ADDRESS_IO_MASK;
|
|
} else {
|
|
DBG_TRC((" memory"));
|
|
ret &= PCI_BASE_ADDRESS_MEM_MASK;
|
|
}
|
|
DBG_TRC((" final=%08x", ret));
|
|
}
|
|
|
|
return (ret);
|
|
}
|
|
|
|
void PCIwrite(byte bus, byte func, int offset, void *data, int length,
|
|
void *pci_dev_handle)
|
|
{
|
|
struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
|
|
|
|
switch (length) {
|
|
case 1: /* byte */
|
|
pci_write_config_byte(dev, offset,
|
|
*(unsigned char *) data);
|
|
break;
|
|
case 2: /* word */
|
|
pci_write_config_word(dev, offset,
|
|
*(unsigned short *) data);
|
|
break;
|
|
case 4: /* dword */
|
|
pci_write_config_dword(dev, offset,
|
|
*(unsigned int *) data);
|
|
break;
|
|
|
|
default: /* buffer */
|
|
if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */
|
|
dword *p = (dword *) data;
|
|
length /= 4;
|
|
|
|
while (length--) {
|
|
pci_write_config_dword(dev, offset,
|
|
*(unsigned int *)
|
|
p++);
|
|
}
|
|
} else { /* copy as byte stream */
|
|
byte *p = (byte *) data;
|
|
|
|
while (length--) {
|
|
pci_write_config_byte(dev, offset,
|
|
*(unsigned char *)
|
|
p++);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void PCIread(byte bus, byte func, int offset, void *data, int length,
|
|
void *pci_dev_handle)
|
|
{
|
|
struct pci_dev *dev = (struct pci_dev *) pci_dev_handle;
|
|
|
|
switch (length) {
|
|
case 1: /* byte */
|
|
pci_read_config_byte(dev, offset, (unsigned char *) data);
|
|
break;
|
|
case 2: /* word */
|
|
pci_read_config_word(dev, offset, (unsigned short *) data);
|
|
break;
|
|
case 4: /* dword */
|
|
pci_read_config_dword(dev, offset, (unsigned int *) data);
|
|
break;
|
|
|
|
default: /* buffer */
|
|
if (!(length % 4) && !(length & 0x03)) { /* Copy as dword */
|
|
dword *p = (dword *) data;
|
|
length /= 4;
|
|
|
|
while (length--) {
|
|
pci_read_config_dword(dev, offset,
|
|
(unsigned int *)
|
|
p++);
|
|
}
|
|
} else { /* copy as byte stream */
|
|
byte *p = (byte *) data;
|
|
|
|
while (length--) {
|
|
pci_read_config_byte(dev, offset,
|
|
(unsigned char *)
|
|
p++);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
Init map with DMA pages. It is not problem if some allocations fail -
|
|
the channels that will not get one DMA page will use standard PIO
|
|
interface
|
|
*/
|
|
static void *diva_pci_alloc_consistent(struct pci_dev *hwdev,
|
|
size_t size,
|
|
dma_addr_t * dma_handle,
|
|
void **addr_handle)
|
|
{
|
|
void *addr = pci_alloc_consistent(hwdev, size, dma_handle);
|
|
|
|
*addr_handle = addr;
|
|
|
|
return (addr);
|
|
}
|
|
|
|
void diva_init_dma_map(void *hdev,
|
|
struct _diva_dma_map_entry **ppmap, int nentries)
|
|
{
|
|
struct pci_dev *pdev = (struct pci_dev *) hdev;
|
|
struct _diva_dma_map_entry *pmap =
|
|
diva_alloc_dma_map(hdev, nentries);
|
|
|
|
if (pmap) {
|
|
int i;
|
|
dma_addr_t dma_handle;
|
|
void *cpu_addr;
|
|
void *addr_handle;
|
|
|
|
for (i = 0; i < nentries; i++) {
|
|
if (!(cpu_addr = diva_pci_alloc_consistent(pdev,
|
|
PAGE_SIZE,
|
|
&dma_handle,
|
|
&addr_handle)))
|
|
{
|
|
break;
|
|
}
|
|
diva_init_dma_map_entry(pmap, i, cpu_addr,
|
|
(dword) dma_handle,
|
|
addr_handle);
|
|
DBG_TRC(("dma map alloc [%d]=(%08lx:%08x:%08lx)",
|
|
i, (unsigned long) cpu_addr,
|
|
(dword) dma_handle,
|
|
(unsigned long) addr_handle))}
|
|
}
|
|
|
|
*ppmap = pmap;
|
|
}
|
|
|
|
/*
|
|
Free all contained in the map entries and memory used by the map
|
|
Should be always called after adapter removal from DIDD array
|
|
*/
|
|
void diva_free_dma_map(void *hdev, struct _diva_dma_map_entry *pmap)
|
|
{
|
|
struct pci_dev *pdev = (struct pci_dev *) hdev;
|
|
int i;
|
|
dword phys_addr;
|
|
void *cpu_addr;
|
|
dma_addr_t dma_handle;
|
|
void *addr_handle;
|
|
|
|
for (i = 0; (pmap != 0); i++) {
|
|
diva_get_dma_map_entry(pmap, i, &cpu_addr, &phys_addr);
|
|
if (!cpu_addr) {
|
|
break;
|
|
}
|
|
addr_handle = diva_get_entry_handle(pmap, i);
|
|
dma_handle = (dma_addr_t) phys_addr;
|
|
pci_free_consistent(pdev, PAGE_SIZE, addr_handle,
|
|
dma_handle);
|
|
DBG_TRC(("dma map free [%d]=(%08lx:%08x:%08lx)", i,
|
|
(unsigned long) cpu_addr, (dword) dma_handle,
|
|
(unsigned long) addr_handle))
|
|
}
|
|
|
|
diva_free_dma_mapping(pmap);
|
|
}
|
|
|
|
|
|
/*********************************************************
|
|
** I/O port utilities
|
|
*********************************************************/
|
|
|
|
int
|
|
diva_os_register_io_port(void *adapter, int on, unsigned long port,
|
|
unsigned long length, const char *name, int id)
|
|
{
|
|
if (on) {
|
|
if (!request_region(port, length, name)) {
|
|
DBG_ERR(("A: I/O: can't register port=%08x", port))
|
|
return (-1);
|
|
}
|
|
} else {
|
|
release_region(port, length);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
void __iomem *divasa_remap_pci_bar(diva_os_xdi_adapter_t *a, int id, unsigned long bar, unsigned long area_length)
|
|
{
|
|
void __iomem *ret = ioremap(bar, area_length);
|
|
DBG_TRC(("remap(%08x)->%p", bar, ret));
|
|
return (ret);
|
|
}
|
|
|
|
void divasa_unmap_pci_bar(void __iomem *bar)
|
|
{
|
|
if (bar) {
|
|
iounmap(bar);
|
|
}
|
|
}
|
|
|
|
/*********************************************************
|
|
** I/O port access
|
|
*********************************************************/
|
|
byte __inline__ inpp(void __iomem *addr)
|
|
{
|
|
return (inb((unsigned long) addr));
|
|
}
|
|
|
|
word __inline__ inppw(void __iomem *addr)
|
|
{
|
|
return (inw((unsigned long) addr));
|
|
}
|
|
|
|
void __inline__ inppw_buffer(void __iomem *addr, void *P, int length)
|
|
{
|
|
insw((unsigned long) addr, (word *) P, length >> 1);
|
|
}
|
|
|
|
void __inline__ outppw_buffer(void __iomem *addr, void *P, int length)
|
|
{
|
|
outsw((unsigned long) addr, (word *) P, length >> 1);
|
|
}
|
|
|
|
void __inline__ outppw(void __iomem *addr, word w)
|
|
{
|
|
outw(w, (unsigned long) addr);
|
|
}
|
|
|
|
void __inline__ outpp(void __iomem *addr, word p)
|
|
{
|
|
outb(p, (unsigned long) addr);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------
|
|
IRQ request / remove
|
|
-------------------------------------------------------------------------- */
|
|
int diva_os_register_irq(void *context, byte irq, const char *name)
|
|
{
|
|
int result = request_irq(irq, diva_os_irq_wrapper,
|
|
SA_INTERRUPT | SA_SHIRQ, name, context);
|
|
return (result);
|
|
}
|
|
|
|
void diva_os_remove_irq(void *context, byte irq)
|
|
{
|
|
free_irq(irq, context);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------
|
|
DPC framework implementation
|
|
-------------------------------------------------------------------------- */
|
|
static void diva_os_dpc_proc(unsigned long context)
|
|
{
|
|
diva_os_thread_dpc_t *psoft_isr = (diva_os_thread_dpc_t *) context;
|
|
diva_os_soft_isr_t *pisr = psoft_isr->psoft_isr;
|
|
|
|
(*(pisr->callback)) (pisr, pisr->callback_context);
|
|
}
|
|
|
|
int diva_os_initialize_soft_isr(diva_os_soft_isr_t * psoft_isr,
|
|
diva_os_soft_isr_callback_t callback,
|
|
void *callback_context)
|
|
{
|
|
diva_os_thread_dpc_t *pdpc;
|
|
|
|
pdpc = (diva_os_thread_dpc_t *) diva_os_malloc(0, sizeof(*pdpc));
|
|
if (!(psoft_isr->object = pdpc)) {
|
|
return (-1);
|
|
}
|
|
memset(pdpc, 0x00, sizeof(*pdpc));
|
|
psoft_isr->callback = callback;
|
|
psoft_isr->callback_context = callback_context;
|
|
pdpc->psoft_isr = psoft_isr;
|
|
tasklet_init(&pdpc->divas_task, diva_os_dpc_proc, (unsigned long)pdpc);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int diva_os_schedule_soft_isr(diva_os_soft_isr_t * psoft_isr)
|
|
{
|
|
if (psoft_isr && psoft_isr->object) {
|
|
diva_os_thread_dpc_t *pdpc =
|
|
(diva_os_thread_dpc_t *) psoft_isr->object;
|
|
|
|
tasklet_schedule(&pdpc->divas_task);
|
|
}
|
|
|
|
return (1);
|
|
}
|
|
|
|
int diva_os_cancel_soft_isr(diva_os_soft_isr_t * psoft_isr)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
void diva_os_remove_soft_isr(diva_os_soft_isr_t * psoft_isr)
|
|
{
|
|
if (psoft_isr && psoft_isr->object) {
|
|
diva_os_thread_dpc_t *pdpc =
|
|
(diva_os_thread_dpc_t *) psoft_isr->object;
|
|
void *mem;
|
|
|
|
tasklet_kill(&pdpc->divas_task);
|
|
flush_scheduled_work();
|
|
mem = psoft_isr->object;
|
|
psoft_isr->object = NULL;
|
|
diva_os_free(0, mem);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* kernel/user space copy functions
|
|
*/
|
|
static int
|
|
xdi_copy_to_user(void *os_handle, void __user *dst, const void *src, int length)
|
|
{
|
|
if (copy_to_user(dst, src, length)) {
|
|
return (-EFAULT);
|
|
}
|
|
return (length);
|
|
}
|
|
|
|
static int
|
|
xdi_copy_from_user(void *os_handle, void *dst, const void __user *src, int length)
|
|
{
|
|
if (copy_from_user(dst, src, length)) {
|
|
return (-EFAULT);
|
|
}
|
|
return (length);
|
|
}
|
|
|
|
/*
|
|
* device node operations
|
|
*/
|
|
static int divas_open(struct inode *inode, struct file *file)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
static int divas_release(struct inode *inode, struct file *file)
|
|
{
|
|
if (file->private_data) {
|
|
diva_xdi_close_adapter(file->private_data, file);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static ssize_t divas_write(struct file *file, const char __user *buf,
|
|
size_t count, loff_t * ppos)
|
|
{
|
|
int ret = -EINVAL;
|
|
|
|
if (!file->private_data) {
|
|
file->private_data = diva_xdi_open_adapter(file, buf,
|
|
count,
|
|
xdi_copy_from_user);
|
|
}
|
|
if (!file->private_data) {
|
|
return (-ENODEV);
|
|
}
|
|
|
|
ret = diva_xdi_write(file->private_data, file,
|
|
buf, count, xdi_copy_from_user);
|
|
switch (ret) {
|
|
case -1: /* Message should be removed from rx mailbox first */
|
|
ret = -EBUSY;
|
|
break;
|
|
case -2: /* invalid adapter was specified in this call */
|
|
ret = -ENOMEM;
|
|
break;
|
|
case -3:
|
|
ret = -ENXIO;
|
|
break;
|
|
}
|
|
DBG_TRC(("write: ret %d", ret));
|
|
return (ret);
|
|
}
|
|
|
|
static ssize_t divas_read(struct file *file, char __user *buf,
|
|
size_t count, loff_t * ppos)
|
|
{
|
|
int ret = -EINVAL;
|
|
|
|
if (!file->private_data) {
|
|
file->private_data = diva_xdi_open_adapter(file, buf,
|
|
count,
|
|
xdi_copy_from_user);
|
|
}
|
|
if (!file->private_data) {
|
|
return (-ENODEV);
|
|
}
|
|
|
|
ret = diva_xdi_read(file->private_data, file,
|
|
buf, count, xdi_copy_to_user);
|
|
switch (ret) {
|
|
case -1: /* RX mailbox is empty */
|
|
ret = -EAGAIN;
|
|
break;
|
|
case -2: /* no memory, mailbox was cleared, last command is failed */
|
|
ret = -ENOMEM;
|
|
break;
|
|
case -3: /* can't copy to user, retry */
|
|
ret = -EFAULT;
|
|
break;
|
|
}
|
|
DBG_TRC(("read: ret %d", ret));
|
|
return (ret);
|
|
}
|
|
|
|
static unsigned int divas_poll(struct file *file, poll_table * wait)
|
|
{
|
|
if (!file->private_data) {
|
|
return (POLLERR);
|
|
}
|
|
return (POLLIN | POLLRDNORM);
|
|
}
|
|
|
|
static struct file_operations divas_fops = {
|
|
.owner = THIS_MODULE,
|
|
.llseek = no_llseek,
|
|
.read = divas_read,
|
|
.write = divas_write,
|
|
.poll = divas_poll,
|
|
.open = divas_open,
|
|
.release = divas_release
|
|
};
|
|
|
|
static void divas_unregister_chrdev(void)
|
|
{
|
|
devfs_remove(DEVNAME);
|
|
unregister_chrdev(major, DEVNAME);
|
|
}
|
|
|
|
static int DIVA_INIT_FUNCTION divas_register_chrdev(void)
|
|
{
|
|
if ((major = register_chrdev(0, DEVNAME, &divas_fops)) < 0)
|
|
{
|
|
printk(KERN_ERR "%s: failed to create /dev entry.\n",
|
|
DRIVERLNAME);
|
|
return (0);
|
|
}
|
|
devfs_mk_cdev(MKDEV(major, 0), S_IFCHR|S_IRUSR|S_IWUSR, DEVNAME);
|
|
|
|
return (1);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------
|
|
PCI driver section
|
|
-------------------------------------------------------------------------- */
|
|
static int __devinit divas_init_one(struct pci_dev *pdev,
|
|
const struct pci_device_id *ent)
|
|
{
|
|
void *pdiva = NULL;
|
|
u8 pci_latency;
|
|
u8 new_latency = 32;
|
|
|
|
DBG_TRC(("%s bus: %08x fn: %08x insertion.\n",
|
|
CardProperties[ent->driver_data].Name,
|
|
pdev->bus->number, pdev->devfn))
|
|
printk(KERN_INFO "%s: %s bus: %08x fn: %08x insertion.\n",
|
|
DRIVERLNAME, CardProperties[ent->driver_data].Name,
|
|
pdev->bus->number, pdev->devfn);
|
|
|
|
if (pci_enable_device(pdev)) {
|
|
DBG_TRC(("%s: %s bus: %08x fn: %08x device init failed.\n",
|
|
DRIVERLNAME,
|
|
CardProperties[ent->driver_data].Name,
|
|
pdev->bus->number,
|
|
pdev->devfn))
|
|
printk(KERN_ERR
|
|
"%s: %s bus: %08x fn: %08x device init failed.\n",
|
|
DRIVERLNAME,
|
|
CardProperties[ent->driver_data].
|
|
Name, pdev->bus->number,
|
|
pdev->devfn);
|
|
return (-EIO);
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
|
|
if (!pci_latency) {
|
|
DBG_TRC(("%s: bus: %08x fn: %08x fix latency.\n",
|
|
DRIVERLNAME, pdev->bus->number, pdev->devfn))
|
|
printk(KERN_INFO
|
|
"%s: bus: %08x fn: %08x fix latency.\n",
|
|
DRIVERLNAME, pdev->bus->number, pdev->devfn);
|
|
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency);
|
|
}
|
|
|
|
if (!(pdiva = diva_driver_add_card(pdev, ent->driver_data))) {
|
|
DBG_TRC(("%s: %s bus: %08x fn: %08x card init failed.\n",
|
|
DRIVERLNAME,
|
|
CardProperties[ent->driver_data].Name,
|
|
pdev->bus->number,
|
|
pdev->devfn))
|
|
printk(KERN_ERR
|
|
"%s: %s bus: %08x fn: %08x card init failed.\n",
|
|
DRIVERLNAME,
|
|
CardProperties[ent->driver_data].
|
|
Name, pdev->bus->number,
|
|
pdev->devfn);
|
|
return (-EIO);
|
|
}
|
|
|
|
pci_set_drvdata(pdev, pdiva);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void __devexit divas_remove_one(struct pci_dev *pdev)
|
|
{
|
|
void *pdiva = pci_get_drvdata(pdev);
|
|
|
|
DBG_TRC(("bus: %08x fn: %08x removal.\n",
|
|
pdev->bus->number, pdev->devfn))
|
|
printk(KERN_INFO "%s: bus: %08x fn: %08x removal.\n",
|
|
DRIVERLNAME, pdev->bus->number, pdev->devfn);
|
|
|
|
if (pdiva) {
|
|
diva_driver_remove_card(pdiva);
|
|
}
|
|
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------
|
|
Driver Load / Startup
|
|
-------------------------------------------------------------------------- */
|
|
static int DIVA_INIT_FUNCTION divas_init(void)
|
|
{
|
|
char tmprev[50];
|
|
int ret = 0;
|
|
|
|
printk(KERN_INFO "%s\n", DRIVERNAME);
|
|
printk(KERN_INFO "%s: Rel:%s Rev:", DRIVERLNAME, DRIVERRELEASE_DIVAS);
|
|
strcpy(tmprev, main_revision);
|
|
printk("%s Build: %s(%s)\n", getrev(tmprev),
|
|
diva_xdi_common_code_build, DIVA_BUILD);
|
|
printk(KERN_INFO "%s: support for: ", DRIVERLNAME);
|
|
#ifdef CONFIG_ISDN_DIVAS_BRIPCI
|
|
printk("BRI/PCI ");
|
|
#endif
|
|
#ifdef CONFIG_ISDN_DIVAS_PRIPCI
|
|
printk("PRI/PCI ");
|
|
#endif
|
|
printk("adapters\n");
|
|
|
|
if (!divasfunc_init(dbgmask)) {
|
|
printk(KERN_ERR "%s: failed to connect to DIDD.\n",
|
|
DRIVERLNAME);
|
|
ret = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
if (!divas_register_chrdev()) {
|
|
#ifdef MODULE
|
|
divasfunc_exit();
|
|
#endif
|
|
ret = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
if (!create_divas_proc()) {
|
|
#ifdef MODULE
|
|
remove_divas_proc();
|
|
divas_unregister_chrdev();
|
|
divasfunc_exit();
|
|
#endif
|
|
printk(KERN_ERR "%s: failed to create proc entry.\n",
|
|
DRIVERLNAME);
|
|
ret = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
if ((ret = pci_register_driver(&diva_pci_driver))) {
|
|
#ifdef MODULE
|
|
remove_divas_proc();
|
|
divas_unregister_chrdev();
|
|
divasfunc_exit();
|
|
#endif
|
|
printk(KERN_ERR "%s: failed to init pci driver.\n",
|
|
DRIVERLNAME);
|
|
goto out;
|
|
}
|
|
printk(KERN_INFO "%s: started with major %d\n", DRIVERLNAME, major);
|
|
|
|
out:
|
|
return (ret);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------
|
|
Driver Unload
|
|
-------------------------------------------------------------------------- */
|
|
static void DIVA_EXIT_FUNCTION divas_exit(void)
|
|
{
|
|
pci_unregister_driver(&diva_pci_driver);
|
|
remove_divas_proc();
|
|
divas_unregister_chrdev();
|
|
divasfunc_exit();
|
|
|
|
printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
|
|
}
|
|
|
|
module_init(divas_init);
|
|
module_exit(divas_exit);
|