aubrey/kernel_samsung_a34x-permissive
1
0
Fork 0
Code Issues Pull requests Actions Packages Projects Releases Wiki Activity
kernel_samsung_a34x-permissive/drivers/isdn/hardware/avm/b1.c

805 lines
20 KiB
C
Raw Permalink Normal View History

Import A346BXXU1AWB9 kernel source Android 13
2024-04-28 06:49:01 -07:00
/* $Id: b1.c,v 1.1.2.2 2004/01/16 21:09:27 keil Exp $
*
* Common module for AVM B1 cards.
*
* Copyright 1999 by Carsten Paeth <calle@calle.de>
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/skbuff.h>
#include <linux/delay.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/capi.h>
#include <linux/kernelcapi.h>
#include <linux/slab.h>
#include <asm/io.h>
#include <linux/init.h>
#include <linux/uaccess.h>
#include <linux/netdevice.h>
#include <linux/isdn/capilli.h>
#include "avmcard.h"
#include <linux/isdn/capicmd.h>
#include <linux/isdn/capiutil.h>
static char *revision = "$Revision: 1.1.2.2 $";
/* ------------------------------------------------------------- */
MODULE_DESCRIPTION("CAPI4Linux: Common support for active AVM cards");
MODULE_AUTHOR("Carsten Paeth");
MODULE_LICENSE("GPL");
/* ------------------------------------------------------------- */
int b1_irq_table[16] =
{0,
0,
0,
192, /* irq 3 */
32, /* irq 4 */
160, /* irq 5 */
96, /* irq 6 */
224, /* irq 7 */
0,
64, /* irq 9 */
80, /* irq 10 */
208, /* irq 11 */
48, /* irq 12 */
0,
0,
112, /* irq 15 */
};
/* ------------------------------------------------------------- */
avmcard *b1_alloc_card(int nr_controllers)
{
avmcard *card;
avmctrl_info *cinfo;
int i;
card = kzalloc(sizeof(*card), GFP_KERNEL);
if (!card)
return NULL;
cinfo = kcalloc(nr_controllers, sizeof(*cinfo), GFP_KERNEL);
if (!cinfo) {
kfree(card);
return NULL;
}
card->ctrlinfo = cinfo;
for (i = 0; i < nr_controllers; i++) {
INIT_LIST_HEAD(&cinfo[i].ncci_head);
cinfo[i].card = card;
}
spin_lock_init(&card->lock);
card->nr_controllers = nr_controllers;
return card;
}
/* ------------------------------------------------------------- */
void b1_free_card(avmcard *card)
{
kfree(card->ctrlinfo);
kfree(card);
}
/* ------------------------------------------------------------- */
int b1_detect(unsigned int base, enum avmcardtype cardtype)
{
int onoff, i;
/*
* Statusregister 0000 00xx
*/
if ((inb(base + B1_INSTAT) & 0xfc)
|| (inb(base + B1_OUTSTAT) & 0xfc))
return 1;
/*
* Statusregister 0000 001x
*/
b1outp(base, B1_INSTAT, 0x2); /* enable irq */
/* b1outp(base, B1_OUTSTAT, 0x2); */
if ((inb(base + B1_INSTAT) & 0xfe) != 0x2
/* || (inb(base + B1_OUTSTAT) & 0xfe) != 0x2 */)
return 2;
/*
* Statusregister 0000 000x
*/
b1outp(base, B1_INSTAT, 0x0); /* disable irq */
b1outp(base, B1_OUTSTAT, 0x0);
if ((inb(base + B1_INSTAT) & 0xfe)
|| (inb(base + B1_OUTSTAT) & 0xfe))
return 3;
for (onoff = !0, i = 0; i < 10; i++) {
b1_set_test_bit(base, cardtype, onoff);
if (b1_get_test_bit(base, cardtype) != onoff)
return 4;
onoff = !onoff;
}
if (cardtype == avm_m1)
return 0;
if ((b1_rd_reg(base, B1_STAT1(cardtype)) & 0x0f) != 0x01)
return 5;
return 0;
}
void b1_getrevision(avmcard *card)
{
card->class = inb(card->port + B1_ANALYSE);
card->revision = inb(card->port + B1_REVISION);
}
#define FWBUF_SIZE 256
int b1_load_t4file(avmcard *card, capiloaddatapart *t4file)
{
unsigned char buf[FWBUF_SIZE];
unsigned char *dp;
int i, left;
unsigned int base = card->port;
dp = t4file->data;
left = t4file->len;
while (left > FWBUF_SIZE) {
if (t4file->user) {
if (copy_from_user(buf, dp, FWBUF_SIZE))
return -EFAULT;
} else {
memcpy(buf, dp, FWBUF_SIZE);
}
for (i = 0; i < FWBUF_SIZE; i++)
if (b1_save_put_byte(base, buf[i]) < 0) {
printk(KERN_ERR "%s: corrupted firmware file ?\n",
card->name);
return -EIO;
}
left -= FWBUF_SIZE;
dp += FWBUF_SIZE;
}
if (left) {
if (t4file->user) {
if (copy_from_user(buf, dp, left))
return -EFAULT;
} else {
memcpy(buf, dp, left);
}
for (i = 0; i < left; i++)
if (b1_save_put_byte(base, buf[i]) < 0) {
printk(KERN_ERR "%s: corrupted firmware file ?\n",
card->name);
return -EIO;
}
}
return 0;
}
int b1_load_config(avmcard *card, capiloaddatapart *config)
{
unsigned char buf[FWBUF_SIZE];
unsigned char *dp;
unsigned int base = card->port;
int i, j, left;
dp = config->data;
left = config->len;
if (left) {
b1_put_byte(base, SEND_CONFIG);
b1_put_word(base, 1);
b1_put_byte(base, SEND_CONFIG);
b1_put_word(base, left);
}
while (left > FWBUF_SIZE) {
if (config->user) {
if (copy_from_user(buf, dp, FWBUF_SIZE))
return -EFAULT;
} else {
memcpy(buf, dp, FWBUF_SIZE);
}
for (i = 0; i < FWBUF_SIZE; ) {
b1_put_byte(base, SEND_CONFIG);
for (j = 0; j < 4; j++) {
b1_put_byte(base, buf[i++]);
}
}
left -= FWBUF_SIZE;
dp += FWBUF_SIZE;
}
if (left) {
if (config->user) {
if (copy_from_user(buf, dp, left))
return -EFAULT;
} else {
memcpy(buf, dp, left);
}
for (i = 0; i < left; ) {
b1_put_byte(base, SEND_CONFIG);
for (j = 0; j < 4; j++) {
if (i < left)
b1_put_byte(base, buf[i++]);
else
b1_put_byte(base, 0);
}
}
}
return 0;
}
int b1_loaded(avmcard *card)
{
unsigned int base = card->port;
unsigned long stop;
unsigned char ans;
unsigned long tout = 2;
for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) {
if (b1_tx_empty(base))
break;
}
if (!b1_tx_empty(base)) {
printk(KERN_ERR "%s: b1_loaded: tx err, corrupted t4 file ?\n",
card->name);
return 0;
}
b1_put_byte(base, SEND_POLL);
for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) {
if (b1_rx_full(base)) {
if ((ans = b1_get_byte(base)) == RECEIVE_POLL) {
return 1;
}
printk(KERN_ERR "%s: b1_loaded: got 0x%x, firmware not running\n",
card->name, ans);
return 0;
}
}
printk(KERN_ERR "%s: b1_loaded: firmware not running\n", card->name);
return 0;
}
/* ------------------------------------------------------------- */
int b1_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
unsigned int port = card->port;
unsigned long flags;
int retval;
b1_reset(port);
if ((retval = b1_load_t4file(card, &data->firmware))) {
b1_reset(port);
printk(KERN_ERR "%s: failed to load t4file!!\n",
card->name);
return retval;
}
b1_disable_irq(port);
if (data->configuration.len > 0 && data->configuration.data) {
if ((retval = b1_load_config(card, &data->configuration))) {
b1_reset(port);
printk(KERN_ERR "%s: failed to load config!!\n",
card->name);
return retval;
}
}
if (!b1_loaded(card)) {
printk(KERN_ERR "%s: failed to load t4file.\n", card->name);
return -EIO;
}
spin_lock_irqsave(&card->lock, flags);
b1_setinterrupt(port, card->irq, card->cardtype);
b1_put_byte(port, SEND_INIT);
b1_put_word(port, CAPI_MAXAPPL);
b1_put_word(port, AVM_NCCI_PER_CHANNEL * 2);
b1_put_word(port, ctrl->cnr - 1);
spin_unlock_irqrestore(&card->lock, flags);
return 0;
}
void b1_reset_ctr(struct capi_ctr *ctrl)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
unsigned int port = card->port;
unsigned long flags;
b1_reset(port);
b1_reset(port);
memset(cinfo->version, 0, sizeof(cinfo->version));
spin_lock_irqsave(&card->lock, flags);
capilib_release(&cinfo->ncci_head);
spin_unlock_irqrestore(&card->lock, flags);
capi_ctr_down(ctrl);
}
void b1_register_appl(struct capi_ctr *ctrl,
u16 appl,
capi_register_params *rp)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
unsigned int port = card->port;
unsigned long flags;
int nconn, want = rp->level3cnt;
if (want > 0) nconn = want;
else nconn = ctrl->profile.nbchannel * -want;
if (nconn == 0) nconn = ctrl->profile.nbchannel;
spin_lock_irqsave(&card->lock, flags);
b1_put_byte(port, SEND_REGISTER);
b1_put_word(port, appl);
b1_put_word(port, 1024 * (nconn + 1));
b1_put_word(port, nconn);
b1_put_word(port, rp->datablkcnt);
b1_put_word(port, rp->datablklen);
spin_unlock_irqrestore(&card->lock, flags);
}
void b1_release_appl(struct capi_ctr *ctrl, u16 appl)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
unsigned int port = card->port;
unsigned long flags;
spin_lock_irqsave(&card->lock, flags);
capilib_release_appl(&cinfo->ncci_head, appl);
b1_put_byte(port, SEND_RELEASE);
b1_put_word(port, appl);
spin_unlock_irqrestore(&card->lock, flags);
}
u16 b1_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
unsigned int port = card->port;
unsigned long flags;
u16 len = CAPIMSG_LEN(skb->data);
u8 cmd = CAPIMSG_COMMAND(skb->data);
u8 subcmd = CAPIMSG_SUBCOMMAND(skb->data);
u16 dlen, retval;
spin_lock_irqsave(&card->lock, flags);
if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) {
retval = capilib_data_b3_req(&cinfo->ncci_head,
CAPIMSG_APPID(skb->data),
CAPIMSG_NCCI(skb->data),
CAPIMSG_MSGID(skb->data));
if (retval != CAPI_NOERROR) {
spin_unlock_irqrestore(&card->lock, flags);
return retval;
}
dlen = CAPIMSG_DATALEN(skb->data);
b1_put_byte(port, SEND_DATA_B3_REQ);
b1_put_slice(port, skb->data, len);
b1_put_slice(port, skb->data + len, dlen);
} else {
b1_put_byte(port, SEND_MESSAGE);
b1_put_slice(port, skb->data, len);
}
spin_unlock_irqrestore(&card->lock, flags);
dev_kfree_skb_any(skb);
return CAPI_NOERROR;
}
/* ------------------------------------------------------------- */
void b1_parse_version(avmctrl_info *cinfo)
{
struct capi_ctr *ctrl = &cinfo->capi_ctrl;
avmcard *card = cinfo->card;
capi_profile *profp;
u8 *dversion;
u8 flag;
int i, j;
for (j = 0; j < AVM_MAXVERSION; j++)
cinfo->version[j] = "";
for (i = 0, j = 0;
j < AVM_MAXVERSION && i < cinfo->versionlen;
j++, i += cinfo->versionbuf[i] + 1)
cinfo->version[j] = &cinfo->versionbuf[i + 1];
strlcpy(ctrl->serial, cinfo->version[VER_SERIAL], sizeof(ctrl->serial));
memcpy(&ctrl->profile, cinfo->version[VER_PROFILE], sizeof(capi_profile));
strlcpy(ctrl->manu, "AVM GmbH", sizeof(ctrl->manu));
dversion = cinfo->version[VER_DRIVER];
ctrl->version.majorversion = 2;
ctrl->version.minorversion = 0;
ctrl->version.majormanuversion = (((dversion[0] - '0') & 0xf) << 4);
ctrl->version.majormanuversion |= ((dversion[2] - '0') & 0xf);
ctrl->version.minormanuversion = (dversion[3] - '0') << 4;
ctrl->version.minormanuversion |=
(dversion[5] - '0') * 10 + ((dversion[6] - '0') & 0xf);
profp = &ctrl->profile;
flag = ((u8 *)(profp->manu))[1];
switch (flag) {
case 0: if (cinfo->version[VER_CARDTYPE])
strcpy(cinfo->cardname, cinfo->version[VER_CARDTYPE]);
else strcpy(cinfo->cardname, "B1");
break;
case 3: strcpy(cinfo->cardname, "PCMCIA B"); break;
case 4: strcpy(cinfo->cardname, "PCMCIA M1"); break;
case 5: strcpy(cinfo->cardname, "PCMCIA M2"); break;
case 6: strcpy(cinfo->cardname, "B1 V3.0"); break;
case 7: strcpy(cinfo->cardname, "B1 PCI"); break;
default: sprintf(cinfo->cardname, "AVM?%u", (unsigned int)flag); break;
}
printk(KERN_NOTICE "%s: card %d \"%s\" ready.\n",
card->name, ctrl->cnr, cinfo->cardname);
flag = ((u8 *)(profp->manu))[3];
if (flag)
printk(KERN_NOTICE "%s: card %d Protocol:%s%s%s%s%s%s%s\n",
card->name,
ctrl->cnr,
(flag & 0x01) ? " DSS1" : "",
(flag & 0x02) ? " CT1" : "",
(flag & 0x04) ? " VN3" : "",
(flag & 0x08) ? " NI1" : "",
(flag & 0x10) ? " AUSTEL" : "",
(flag & 0x20) ? " ESS" : "",
(flag & 0x40) ? " 1TR6" : ""
);
flag = ((u8 *)(profp->manu))[5];
if (flag)
printk(KERN_NOTICE "%s: card %d Linetype:%s%s%s%s\n",
card->name,
ctrl->cnr,
(flag & 0x01) ? " point to point" : "",
(flag & 0x02) ? " point to multipoint" : "",
(flag & 0x08) ? " leased line without D-channel" : "",
(flag & 0x04) ? " leased line with D-channel" : ""
);
}
/* ------------------------------------------------------------- */
irqreturn_t b1_interrupt(int interrupt, void *devptr)
{
avmcard *card = devptr;
avmctrl_info *cinfo = &card->ctrlinfo[0];
struct capi_ctr *ctrl = &cinfo->capi_ctrl;
unsigned char b1cmd;
struct sk_buff *skb;
unsigned ApplId;
unsigned MsgLen;
unsigned DataB3Len;
unsigned NCCI;
unsigned WindowSize;
unsigned long flags;
spin_lock_irqsave(&card->lock, flags);
if (!b1_rx_full(card->port)) {
spin_unlock_irqrestore(&card->lock, flags);
return IRQ_NONE;
}
b1cmd = b1_get_byte(card->port);
switch (b1cmd) {
case RECEIVE_DATA_B3_IND:
ApplId = (unsigned) b1_get_word(card->port);
MsgLen = b1_get_slice(card->port, card->msgbuf);
DataB3Len = b1_get_slice(card->port, card->databuf);
spin_unlock_irqrestore(&card->lock, flags);
if (MsgLen < 30) { /* not CAPI 64Bit */
memset(card->msgbuf + MsgLen, 0, 30-MsgLen);
MsgLen = 30;
CAPIMSG_SETLEN(card->msgbuf, 30);
}
if (!(skb = alloc_skb(DataB3Len + MsgLen, GFP_ATOMIC))) {
printk(KERN_ERR "%s: incoming packet dropped\n",
card->name);
} else {
skb_put_data(skb, card->msgbuf, MsgLen);
skb_put_data(skb, card->databuf, DataB3Len);
capi_ctr_handle_message(ctrl, ApplId, skb);
}
break;
case RECEIVE_MESSAGE:
ApplId = (unsigned) b1_get_word(card->port);
MsgLen = b1_get_slice(card->port, card->msgbuf);
if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
printk(KERN_ERR "%s: incoming packet dropped\n",
card->name);
spin_unlock_irqrestore(&card->lock, flags);
} else {
skb_put_data(skb, card->msgbuf, MsgLen);
if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_CONF)
capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
CAPIMSG_NCCI(skb->data),
CAPIMSG_MSGID(skb->data));
spin_unlock_irqrestore(&card->lock, flags);
capi_ctr_handle_message(ctrl, ApplId, skb);
}
break;
case RECEIVE_NEW_NCCI:
ApplId = b1_get_word(card->port);
NCCI = b1_get_word(card->port);
WindowSize = b1_get_word(card->port);
capilib_new_ncci(&cinfo->ncci_head, ApplId, NCCI, WindowSize);
spin_unlock_irqrestore(&card->lock, flags);
break;
case RECEIVE_FREE_NCCI:
ApplId = b1_get_word(card->port);
NCCI = b1_get_word(card->port);
if (NCCI != 0xffffffff)
capilib_free_ncci(&cinfo->ncci_head, ApplId, NCCI);
spin_unlock_irqrestore(&card->lock, flags);
break;
case RECEIVE_START:
/* b1_put_byte(card->port, SEND_POLLACK); */
spin_unlock_irqrestore(&card->lock, flags);
capi_ctr_resume_output(ctrl);
break;
case RECEIVE_STOP:
spin_unlock_irqrestore(&card->lock, flags);
capi_ctr_suspend_output(ctrl);
break;
case RECEIVE_INIT:
cinfo->versionlen = b1_get_slice(card->port, cinfo->versionbuf);
spin_unlock_irqrestore(&card->lock, flags);
b1_parse_version(cinfo);
printk(KERN_INFO "%s: %s-card (%s) now active\n",
card->name,
cinfo->version[VER_CARDTYPE],
cinfo->version[VER_DRIVER]);
capi_ctr_ready(ctrl);
break;
case RECEIVE_TASK_READY:
ApplId = (unsigned) b1_get_word(card->port);
MsgLen = b1_get_slice(card->port, card->msgbuf);
spin_unlock_irqrestore(&card->lock, flags);
card->msgbuf[MsgLen] = 0;
while (MsgLen > 0
&& (card->msgbuf[MsgLen - 1] == '\n'
|| card->msgbuf[MsgLen - 1] == '\r')) {
card->msgbuf[MsgLen - 1] = 0;
MsgLen--;
}
printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
card->name, ApplId, card->msgbuf);
break;
case RECEIVE_DEBUGMSG:
MsgLen = b1_get_slice(card->port, card->msgbuf);
spin_unlock_irqrestore(&card->lock, flags);
card->msgbuf[MsgLen] = 0;
while (MsgLen > 0
&& (card->msgbuf[MsgLen - 1] == '\n'
|| card->msgbuf[MsgLen - 1] == '\r')) {
card->msgbuf[MsgLen - 1] = 0;
MsgLen--;
}
printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
break;
case 0xff:
spin_unlock_irqrestore(&card->lock, flags);
printk(KERN_ERR "%s: card removed ?\n", card->name);
return IRQ_NONE;
default:
spin_unlock_irqrestore(&card->lock, flags);
printk(KERN_ERR "%s: b1_interrupt: 0x%x ???\n",
card->name, b1cmd);
return IRQ_HANDLED;
}
return IRQ_HANDLED;
}
/* ------------------------------------------------------------- */
int b1_proc_show(struct seq_file *m, void *v)
{
struct capi_ctr *ctrl = m->private;
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
u8 flag;
char *s;
seq_printf(m, "%-16s %s\n", "name", card->name);
seq_printf(m, "%-16s 0x%x\n", "io", card->port);
seq_printf(m, "%-16s %d\n", "irq", card->irq);
switch (card->cardtype) {
case avm_b1isa: s = "B1 ISA"; break;
case avm_b1pci: s = "B1 PCI"; break;
case avm_b1pcmcia: s = "B1 PCMCIA"; break;
case avm_m1: s = "M1"; break;
case avm_m2: s = "M2"; break;
case avm_t1isa: s = "T1 ISA (HEMA)"; break;
case avm_t1pci: s = "T1 PCI"; break;
case avm_c4: s = "C4"; break;
case avm_c2: s = "C2"; break;
default: s = "???"; break;
}
seq_printf(m, "%-16s %s\n", "type", s);
if (card->cardtype == avm_t1isa)
seq_printf(m, "%-16s %d\n", "cardnr", card->cardnr);
if ((s = cinfo->version[VER_DRIVER]) != NULL)
seq_printf(m, "%-16s %s\n", "ver_driver", s);
if ((s = cinfo->version[VER_CARDTYPE]) != NULL)
seq_printf(m, "%-16s %s\n", "ver_cardtype", s);
if ((s = cinfo->version[VER_SERIAL]) != NULL)
seq_printf(m, "%-16s %s\n", "ver_serial", s);
if (card->cardtype != avm_m1) {
flag = ((u8 *)(ctrl->profile.manu))[3];
if (flag)
seq_printf(m, "%-16s%s%s%s%s%s%s%s\n",
"protocol",
(flag & 0x01) ? " DSS1" : "",
(flag & 0x02) ? " CT1" : "",
(flag & 0x04) ? " VN3" : "",
(flag & 0x08) ? " NI1" : "",
(flag & 0x10) ? " AUSTEL" : "",
(flag & 0x20) ? " ESS" : "",
(flag & 0x40) ? " 1TR6" : ""
);
}
if (card->cardtype != avm_m1) {
flag = ((u8 *)(ctrl->profile.manu))[5];
if (flag)
seq_printf(m, "%-16s%s%s%s%s\n",
"linetype",
(flag & 0x01) ? " point to point" : "",
(flag & 0x02) ? " point to multipoint" : "",
(flag & 0x08) ? " leased line without D-channel" : "",
(flag & 0x04) ? " leased line with D-channel" : ""
);
}
seq_printf(m, "%-16s %s\n", "cardname", cinfo->cardname);
return 0;
}
EXPORT_SYMBOL(b1_proc_show);
/* ------------------------------------------------------------- */
#ifdef CONFIG_PCI
avmcard_dmainfo *
avmcard_dma_alloc(char *name, struct pci_dev *pdev, long rsize, long ssize)
{
avmcard_dmainfo *p;
void *buf;
p = kzalloc(sizeof(avmcard_dmainfo), GFP_KERNEL);
if (!p) {
printk(KERN_WARNING "%s: no memory.\n", name);
goto err;
}
p->recvbuf.size = rsize;
buf = pci_alloc_consistent(pdev, rsize, &p->recvbuf.dmaaddr);
if (!buf) {
printk(KERN_WARNING "%s: allocation of receive dma buffer failed.\n", name);
goto err_kfree;
}
p->recvbuf.dmabuf = buf;
p->sendbuf.size = ssize;
buf = pci_alloc_consistent(pdev, ssize, &p->sendbuf.dmaaddr);
if (!buf) {
printk(KERN_WARNING "%s: allocation of send dma buffer failed.\n", name);
goto err_free_consistent;
}
p->sendbuf.dmabuf = buf;
skb_queue_head_init(&p->send_queue);
return p;
err_free_consistent:
pci_free_consistent(p->pcidev, p->recvbuf.size,
p->recvbuf.dmabuf, p->recvbuf.dmaaddr);
err_kfree:
kfree(p);
err:
return NULL;
}
void avmcard_dma_free(avmcard_dmainfo *p)
{
pci_free_consistent(p->pcidev, p->recvbuf.size,
p->recvbuf.dmabuf, p->recvbuf.dmaaddr);
pci_free_consistent(p->pcidev, p->sendbuf.size,
p->sendbuf.dmabuf, p->sendbuf.dmaaddr);
skb_queue_purge(&p->send_queue);
kfree(p);
}
EXPORT_SYMBOL(avmcard_dma_alloc);
EXPORT_SYMBOL(avmcard_dma_free);
#endif
EXPORT_SYMBOL(b1_irq_table);
EXPORT_SYMBOL(b1_alloc_card);
EXPORT_SYMBOL(b1_free_card);
EXPORT_SYMBOL(b1_detect);
EXPORT_SYMBOL(b1_getrevision);
EXPORT_SYMBOL(b1_load_t4file);
EXPORT_SYMBOL(b1_load_config);
EXPORT_SYMBOL(b1_loaded);
EXPORT_SYMBOL(b1_load_firmware);
EXPORT_SYMBOL(b1_reset_ctr);
EXPORT_SYMBOL(b1_register_appl);
EXPORT_SYMBOL(b1_release_appl);
EXPORT_SYMBOL(b1_send_message);
EXPORT_SYMBOL(b1_parse_version);
EXPORT_SYMBOL(b1_interrupt);
static int __init b1_init(void)
{
char *p;
char rev[32];
if ((p = strchr(revision, ':')) != NULL && p[1]) {
strlcpy(rev, p + 2, 32);
if ((p = strchr(rev, '$')) != NULL && p > rev)
*(p - 1) = 0;
} else
strcpy(rev, "1.0");
printk(KERN_INFO "b1: revision %s\n", rev);
return 0;
}
static void __exit b1_exit(void)
{
}
module_init(b1_init);
module_exit(b1_exit);
Reference in a new issue Copy permalink