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/* $Id: b1dma.c,v 1.1.4.1 2001/11/20 14:19:34 kai Exp $
*
* Common module for AVM B1 cards that support dma with AMCC
*
* Copyright 2000 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/config.h>
#include <linux/module.h>
#include <linux/kernel.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 <asm/io.h>
#include <linux/init.h>
#include <asm/uaccess.h>
#include <linux/netdevice.h>
#include "capilli.h"
#include "avmcard.h"
#include "capicmd.h"
#include "capiutil.h"
#if BITS_PER_LONG != 32
#error FIXME: driver requires 32-bit platform
#endif
static char *revision = "$Revision: 1.1.4.1 $";
/* ------------------------------------------------------------- */
MODULE_DESCRIPTION("CAPI4Linux: DMA support for active AVM cards");
MODULE_AUTHOR("Carsten Paeth");
MODULE_LICENSE("GPL");
static int suppress_pollack = 0;
MODULE_PARM(suppress_pollack, "0-1i");
/* ------------------------------------------------------------- */
static void b1dma_dispatch_tx(avmcard *card);
/* ------------------------------------------------------------- */
/* S5933 */
#define AMCC_RXPTR 0x24
#define AMCC_RXLEN 0x28
#define AMCC_TXPTR 0x2c
#define AMCC_TXLEN 0x30
#define AMCC_INTCSR 0x38
# define EN_READ_TC_INT 0x00008000L
# define EN_WRITE_TC_INT 0x00004000L
# define EN_TX_TC_INT EN_READ_TC_INT
# define EN_RX_TC_INT EN_WRITE_TC_INT
# define AVM_FLAG 0x30000000L
# define ANY_S5933_INT 0x00800000L
# define READ_TC_INT 0x00080000L
# define WRITE_TC_INT 0x00040000L
# define TX_TC_INT READ_TC_INT
# define RX_TC_INT WRITE_TC_INT
# define MASTER_ABORT_INT 0x00100000L
# define TARGET_ABORT_INT 0x00200000L
# define BUS_MASTER_INT 0x00200000L
# define ALL_INT 0x000C0000L
#define AMCC_MCSR 0x3c
# define A2P_HI_PRIORITY 0x00000100L
# define EN_A2P_TRANSFERS 0x00000400L
# define P2A_HI_PRIORITY 0x00001000L
# define EN_P2A_TRANSFERS 0x00004000L
# define RESET_A2P_FLAGS 0x04000000L
# define RESET_P2A_FLAGS 0x02000000L
/* ------------------------------------------------------------- */
#define b1dmaoutmeml(addr, value) writel(value, addr)
#define b1dmainmeml(addr) readl(addr)
#define b1dmaoutmemw(addr, value) writew(value, addr)
#define b1dmainmemw(addr) readw(addr)
#define b1dmaoutmemb(addr, value) writeb(value, addr)
#define b1dmainmemb(addr) readb(addr)
/* ------------------------------------------------------------- */
static inline int b1dma_tx_empty(unsigned int port)
{
return inb(port + 0x03) & 0x1;
}
static inline int b1dma_rx_full(unsigned int port)
{
return inb(port + 0x02) & 0x1;
}
static int b1dma_tolink(avmcard *card, void *buf, unsigned int len)
{
unsigned long stop = jiffies + 1 * HZ; /* maximum wait time 1 sec */
unsigned char *s = (unsigned char *)buf;
while (len--) {
while ( !b1dma_tx_empty(card->port)
&& time_before(jiffies, stop));
if (!b1dma_tx_empty(card->port))
return -1;
t1outp(card->port, 0x01, *s++);
}
return 0;
}
static int b1dma_fromlink(avmcard *card, void *buf, unsigned int len)
{
unsigned long stop = jiffies + 1 * HZ; /* maximum wait time 1 sec */
unsigned char *s = (unsigned char *)buf;
while (len--) {
while ( !b1dma_rx_full(card->port)
&& time_before(jiffies, stop));
if (!b1dma_rx_full(card->port))
return -1;
*s++ = t1inp(card->port, 0x00);
}
return 0;
}
static int WriteReg(avmcard *card, __u32 reg, __u8 val)
{
__u8 cmd = 0x00;
if ( b1dma_tolink(card, &cmd, 1) == 0
&& b1dma_tolink(card, ®, 4) == 0) {
__u32 tmp = val;
return b1dma_tolink(card, &tmp, 4);
}
return -1;
}
static __u8 ReadReg(avmcard *card, __u32 reg)
{
__u8 cmd = 0x01;
if ( b1dma_tolink(card, &cmd, 1) == 0
&& b1dma_tolink(card, ®, 4) == 0) {
__u32 tmp;
if (b1dma_fromlink(card, &tmp, 4) == 0)
return (__u8)tmp;
}
return 0xff;
}
/* ------------------------------------------------------------- */
static inline void _put_byte(void **pp, __u8 val)
{
__u8 *s = *pp;
*s++ = val;
*pp = s;
}
static inline void _put_word(void **pp, __u32 val)
{
__u8 *s = *pp;
*s++ = val & 0xff;
*s++ = (val >> 8) & 0xff;
*s++ = (val >> 16) & 0xff;
*s++ = (val >> 24) & 0xff;
*pp = s;
}
static inline void _put_slice(void **pp, unsigned char *dp, unsigned int len)
{
unsigned i = len;
_put_word(pp, i);
while (i-- > 0)
_put_byte(pp, *dp++);
}
static inline __u8 _get_byte(void **pp)
{
__u8 *s = *pp;
__u8 val;
val = *s++;
*pp = s;
return val;
}
static inline __u32 _get_word(void **pp)
{
__u8 *s = *pp;
__u32 val;
val = *s++;
val |= (*s++ << 8);
val |= (*s++ << 16);
val |= (*s++ << 24);
*pp = s;
return val;
}
static inline __u32 _get_slice(void **pp, unsigned char *dp)
{
unsigned int len, i;
len = i = _get_word(pp);
while (i-- > 0) *dp++ = _get_byte(pp);
return len;
}
/* ------------------------------------------------------------- */
void b1dma_reset(avmcard *card)
{
unsigned long flags;
save_flags(flags);
cli();
card->csr = 0x0;
b1dmaoutmeml(card->mbase+AMCC_INTCSR, card->csr);
b1dmaoutmeml(card->mbase+AMCC_MCSR, 0);
b1dmaoutmeml(card->mbase+AMCC_RXLEN, 0);
b1dmaoutmeml(card->mbase+AMCC_TXLEN, 0);
t1outp(card->port, 0x10, 0x00);
t1outp(card->port, 0x07, 0x00);
restore_flags(flags);
b1dmaoutmeml(card->mbase+AMCC_MCSR, 0);
mdelay(10);
b1dmaoutmeml(card->mbase+AMCC_MCSR, 0x0f000000); /* reset all */
mdelay(10);
b1dmaoutmeml(card->mbase+AMCC_MCSR, 0);
if (card->cardtype == avm_t1pci)
mdelay(42);
else
mdelay(10);
}
/* ------------------------------------------------------------- */
int b1dma_detect(avmcard *card)
{
b1dmaoutmeml(card->mbase+AMCC_MCSR, 0);
mdelay(10);
b1dmaoutmeml(card->mbase+AMCC_MCSR, 0x0f000000); /* reset all */
mdelay(10);
b1dmaoutmeml(card->mbase+AMCC_MCSR, 0);
mdelay(42);
b1dmaoutmeml(card->mbase+AMCC_RXLEN, 0);
b1dmaoutmeml(card->mbase+AMCC_TXLEN, 0);
card->csr = 0x0;
b1dmaoutmeml(card->mbase+AMCC_INTCSR, card->csr);
if (b1dmainmeml(card->mbase+AMCC_MCSR) != 0x000000E6)
return 1;
b1dmaoutmeml(card->mbase+AMCC_RXPTR, 0xffffffff);
b1dmaoutmeml(card->mbase+AMCC_TXPTR, 0xffffffff);
if ( b1dmainmeml(card->mbase+AMCC_RXPTR) != 0xfffffffc
|| b1dmainmeml(card->mbase+AMCC_TXPTR) != 0xfffffffc)
return 2;
b1dmaoutmeml(card->mbase+AMCC_RXPTR, 0x0);
b1dmaoutmeml(card->mbase+AMCC_TXPTR, 0x0);
if ( b1dmainmeml(card->mbase+AMCC_RXPTR) != 0x0
|| b1dmainmeml(card->mbase+AMCC_TXPTR) != 0x0)
return 3;
t1outp(card->port, 0x10, 0x00);
t1outp(card->port, 0x07, 0x00);
t1outp(card->port, 0x02, 0x02);
t1outp(card->port, 0x03, 0x02);
if ( (t1inp(card->port, 0x02) & 0xFE) != 0x02
|| t1inp(card->port, 0x3) != 0x03)
return 4;
t1outp(card->port, 0x02, 0x00);
t1outp(card->port, 0x03, 0x00);
if ( (t1inp(card->port, 0x02) & 0xFE) != 0x00
|| t1inp(card->port, 0x3) != 0x01)
return 5;
return 0;
}
int t1pci_detect(avmcard *card)
{
int ret;
if ((ret = b1dma_detect(card)) != 0)
return ret;
/* Transputer test */
if ( WriteReg(card, 0x80001000, 0x11) != 0
|| WriteReg(card, 0x80101000, 0x22) != 0
|| WriteReg(card, 0x80201000, 0x33) != 0
|| WriteReg(card, 0x80301000, 0x44) != 0)
return 6;
if ( ReadReg(card, 0x80001000) != 0x11
|| ReadReg(card, 0x80101000) != 0x22
|| ReadReg(card, 0x80201000) != 0x33
|| ReadReg(card, 0x80301000) != 0x44)
return 7;
if ( WriteReg(card, 0x80001000, 0x55) != 0
|| WriteReg(card, 0x80101000, 0x66) != 0
|| WriteReg(card, 0x80201000, 0x77) != 0
|| WriteReg(card, 0x80301000, 0x88) != 0)
return 8;
if ( ReadReg(card, 0x80001000) != 0x55
|| ReadReg(card, 0x80101000) != 0x66
|| ReadReg(card, 0x80201000) != 0x77
|| ReadReg(card, 0x80301000) != 0x88)
return 9;
return 0;
}
int b1pciv4_detect(avmcard *card)
{
int ret, i;
if ((ret = b1dma_detect(card)) != 0)
return ret;
for (i=0; i < 5 ; i++) {
if (WriteReg(card, 0x80A00000, 0x21) != 0)
return 6;
if ((ReadReg(card, 0x80A00000) & 0x01) != 0x01)
return 7;
}
for (i=0; i < 5 ; i++) {
if (WriteReg(card, 0x80A00000, 0x20) != 0)
return 8;
if ((ReadReg(card, 0x80A00000) & 0x01) != 0x00)
return 9;
}
return 0;
}
/* ------------------------------------------------------------- */
static void b1dma_dispatch_tx(avmcard *card)
{
avmcard_dmainfo *dma = card->dma;
unsigned long flags;
struct sk_buff *skb;
__u8 cmd, subcmd;
__u16 len;
__u32 txlen;
int inint;
void *p;
save_flags(flags);
cli();
inint = card->interrupt;
if (card->csr & EN_TX_TC_INT) { /* tx busy */
restore_flags(flags);
return;
}
skb = skb_dequeue(&dma->send_queue);
if (!skb) {
#ifdef CONFIG_B1DMA_DEBUG
printk(KERN_DEBUG "tx(%d): underrun\n", inint);
#endif
restore_flags(flags);
return;
}
len = CAPIMSG_LEN(skb->data);
if (len) {
cmd = CAPIMSG_COMMAND(skb->data);
subcmd = CAPIMSG_SUBCOMMAND(skb->data);
p = dma->sendbuf;
if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) {
__u16 dlen = CAPIMSG_DATALEN(skb->data);
_put_byte(&p, SEND_DATA_B3_REQ);
_put_slice(&p, skb->data, len);
_put_slice(&p, skb->data + len, dlen);
} else {
_put_byte(&p, SEND_MESSAGE);
_put_slice(&p, skb->data, len);
}
txlen = (__u8 *)p - (__u8 *)dma->sendbuf;
#ifdef CONFIG_B1DMA_DEBUG
printk(KERN_DEBUG "tx(%d): put msg len=%d\n",
inint, txlen);
#endif
} else {
txlen = skb->len-2;
#ifdef CONFIG_B1DMA_POLLDEBUG
if (skb->data[2] == SEND_POLLACK)
printk(KERN_INFO "%s: send ack\n", card->name);
#endif
#ifdef CONFIG_B1DMA_DEBUG
printk(KERN_DEBUG "tx(%d): put 0x%x len=%d\n",
inint, skb->data[2], txlen);
#endif
memcpy(dma->sendbuf, skb->data+2, skb->len-2);
}
txlen = (txlen + 3) & ~3;
b1dmaoutmeml(card->mbase+AMCC_TXPTR, virt_to_phys(dma->sendbuf));
b1dmaoutmeml(card->mbase+AMCC_TXLEN, txlen);
card->csr |= EN_TX_TC_INT;
if (!inint)
b1dmaoutmeml(card->mbase+AMCC_INTCSR, card->csr);
restore_flags(flags);
dev_kfree_skb_any(skb);
}
/* ------------------------------------------------------------- */
static void queue_pollack(avmcard *card)
{
struct sk_buff *skb;
void *p;
skb = alloc_skb(3, GFP_ATOMIC);
if (!skb) {
printk(KERN_CRIT "%s: no memory, lost poll ack\n",
card->name);
return;
}
p = skb->data;
_put_byte(&p, 0);
_put_byte(&p, 0);
_put_byte(&p, SEND_POLLACK);
skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
skb_queue_tail(&card->dma->send_queue, skb);
b1dma_dispatch_tx(card);
}
/* ------------------------------------------------------------- */
static void b1dma_handle_rx(avmcard *card)
{
avmctrl_info *cinfo = &card->ctrlinfo[0];
avmcard_dmainfo *dma = card->dma;
struct capi_ctr *ctrl = cinfo->capi_ctrl;
struct sk_buff *skb;
void *p = dma->recvbuf+4;
__u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize;
__u8 b1cmd = _get_byte(&p);
#ifdef CONFIG_B1DMA_DEBUG
printk(KERN_DEBUG "rx: 0x%x %lu\n", b1cmd, (unsigned long)dma->recvlen);
#endif
switch (b1cmd) {
case RECEIVE_DATA_B3_IND:
ApplId = (unsigned) _get_word(&p);
MsgLen = _get_slice(&p, card->msgbuf);
DataB3Len = _get_slice(&p, card->databuf);
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 {
memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
ctrl->handle_capimsg(ctrl, ApplId, skb);
}
break;
case RECEIVE_MESSAGE:
ApplId = (unsigned) _get_word(&p);
MsgLen = _get_slice(&p, card->msgbuf);
if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
printk(KERN_ERR "%s: incoming packet dropped\n",
card->name);
} else {
memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
ctrl->handle_capimsg(ctrl, ApplId, skb);
}
break;
case RECEIVE_NEW_NCCI:
ApplId = _get_word(&p);
NCCI = _get_word(&p);
WindowSize = _get_word(&p);
ctrl->new_ncci(ctrl, ApplId, NCCI, WindowSize);
break;
case RECEIVE_FREE_NCCI:
ApplId = _get_word(&p);
NCCI = _get_word(&p);
if (NCCI != 0xffffffff)
ctrl->free_ncci(ctrl, ApplId, NCCI);
else ctrl->appl_released(ctrl, ApplId);
break;
case RECEIVE_START:
#ifdef CONFIG_B1DMA_POLLDEBUG
printk(KERN_INFO "%s: receive poll\n", card->name);
#endif
if (!suppress_pollack)
queue_pollack(card);
ctrl->resume_output(ctrl);
break;
case RECEIVE_STOP:
ctrl->suspend_output(ctrl);
break;
case RECEIVE_INIT:
cinfo->versionlen = _get_slice(&p, cinfo->versionbuf);
b1_parse_version(cinfo);
printk(KERN_INFO "%s: %s-card (%s) now active\n",
card->name,
cinfo->version[VER_CARDTYPE],
cinfo->version[VER_DRIVER]);
ctrl->ready(ctrl);
break;
case RECEIVE_TASK_READY:
ApplId = (unsigned) _get_word(&p);
MsgLen = _get_slice(&p, card->msgbuf);
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 = _get_slice(&p, card->msgbuf);
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;
default:
printk(KERN_ERR "%s: b1dma_interrupt: 0x%x ???\n",
card->name, b1cmd);
return;
}
}
/* ------------------------------------------------------------- */
static void b1dma_handle_interrupt(avmcard *card)
{
__u32 status = b1dmainmeml(card->mbase+AMCC_INTCSR);
__u32 newcsr;
if ((status & ANY_S5933_INT) == 0)
return;
newcsr = card->csr | (status & ALL_INT);
if (status & TX_TC_INT) newcsr &= ~EN_TX_TC_INT;
if (status & RX_TC_INT) newcsr &= ~EN_RX_TC_INT;
b1dmaoutmeml(card->mbase+AMCC_INTCSR, newcsr);
if ((status & RX_TC_INT) != 0) {
__u8 *recvbuf = card->dma->recvbuf;
__u32 rxlen;
if (card->dma->recvlen == 0) {
card->dma->recvlen = *((__u32 *)recvbuf);
rxlen = (card->dma->recvlen + 3) & ~3;
b1dmaoutmeml(card->mbase+AMCC_RXPTR,
virt_to_phys(recvbuf+4));
b1dmaoutmeml(card->mbase+AMCC_RXLEN, rxlen);
} else {
b1dma_handle_rx(card);
card->dma->recvlen = 0;
b1dmaoutmeml(card->mbase+AMCC_RXPTR, virt_to_phys(recvbuf));
b1dmaoutmeml(card->mbase+AMCC_RXLEN, 4);
}
}
if ((status & TX_TC_INT) != 0) {
card->csr &= ~EN_TX_TC_INT;
b1dma_dispatch_tx(card);
}
b1dmaoutmeml(card->mbase+AMCC_INTCSR, card->csr);
}
void b1dma_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
{
avmcard *card;
card = (avmcard *) devptr;
if (!card) {
printk(KERN_WARNING "b1dma: interrupt: wrong device\n");
return;
}
if (card->interrupt) {
printk(KERN_ERR "%s: reentering interrupt hander\n", card->name);
return;
}
card->interrupt = 1;
b1dma_handle_interrupt(card);
card->interrupt = 0;
}
/* ------------------------------------------------------------- */
static int b1dma_loaded(avmcard *card)
{
unsigned long stop;
unsigned char ans;
unsigned long tout = 2;
unsigned int base = card->port;
for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) {
if (b1_tx_empty(base))
break;
}
if (!b1_tx_empty(base)) {
printk(KERN_ERR "%s: b1dma_loaded: tx err, corrupted t4 file ?\n",
card->name);
return 0;
}
b1_put_byte(base, SEND_POLLACK);
for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) {
if (b1_rx_full(base)) {
if ((ans = b1_get_byte(base)) == RECEIVE_POLLDWORD) {
return 1;
}
printk(KERN_ERR "%s: b1dma_loaded: got 0x%x, firmware not running in dword mode\n", card->name, ans);
return 0;
}
}
printk(KERN_ERR "%s: b1dma_loaded: firmware not running\n", card->name);
return 0;
}
/* ------------------------------------------------------------- */
static void b1dma_send_init(avmcard *card)
{
struct sk_buff *skb;
void *p;
skb = alloc_skb(15, GFP_ATOMIC);
if (!skb) {
printk(KERN_CRIT "%s: no memory, lost register appl.\n",
card->name);
return;
}
p = skb->data;
_put_byte(&p, 0);
_put_byte(&p, 0);
_put_byte(&p, SEND_INIT);
_put_word(&p, CAPI_MAXAPPL);
_put_word(&p, AVM_NCCI_PER_CHANNEL*30);
_put_word(&p, card->cardnr - 1);
skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
skb_queue_tail(&card->dma->send_queue, skb);
b1dma_dispatch_tx(card);
}
int b1dma_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
unsigned long flags;
int retval;
b1dma_reset(card);
if ((retval = b1_load_t4file(card, &data->firmware))) {
b1dma_reset(card);
printk(KERN_ERR "%s: failed to load t4file!!\n",
card->name);
return retval;
}
if (data->configuration.len > 0 && data->configuration.data) {
if ((retval = b1_load_config(card, &data->configuration))) {
b1dma_reset(card);
printk(KERN_ERR "%s: failed to load config!!\n",
card->name);
return retval;
}
}
if (!b1dma_loaded(card)) {
b1dma_reset(card);
printk(KERN_ERR "%s: failed to load t4file.\n", card->name);
return -EIO;
}
save_flags(flags);
cli();
card->csr = AVM_FLAG;
b1dmaoutmeml(card->mbase+AMCC_INTCSR, card->csr);
b1dmaoutmeml(card->mbase+AMCC_MCSR,
EN_A2P_TRANSFERS|EN_P2A_TRANSFERS
|A2P_HI_PRIORITY|P2A_HI_PRIORITY
|RESET_A2P_FLAGS|RESET_P2A_FLAGS);
t1outp(card->port, 0x07, 0x30);
t1outp(card->port, 0x10, 0xF0);
card->dma->recvlen = 0;
b1dmaoutmeml(card->mbase+AMCC_RXPTR, virt_to_phys(card->dma->recvbuf));
b1dmaoutmeml(card->mbase+AMCC_RXLEN, 4);
card->csr |= EN_RX_TC_INT;
b1dmaoutmeml(card->mbase+AMCC_INTCSR, card->csr);
restore_flags(flags);
b1dma_send_init(card);
return 0;
}
void b1dma_reset_ctr(struct capi_ctr *ctrl)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
b1dma_reset(card);
memset(cinfo->version, 0, sizeof(cinfo->version));
ctrl->reseted(ctrl);
}
/* ------------------------------------------------------------- */
void b1dma_register_appl(struct capi_ctr *ctrl,
__u16 appl,
capi_register_params *rp)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
struct sk_buff *skb;
int want = rp->level3cnt;
int nconn;
void *p;
if (want > 0) nconn = want;
else nconn = ctrl->profile.nbchannel * -want;
if (nconn == 0) nconn = ctrl->profile.nbchannel;
skb = alloc_skb(23, GFP_ATOMIC);
if (!skb) {
printk(KERN_CRIT "%s: no memory, lost register appl.\n",
card->name);
return;
}
p = skb->data;
_put_byte(&p, 0);
_put_byte(&p, 0);
_put_byte(&p, SEND_REGISTER);
_put_word(&p, appl);
_put_word(&p, 1024 * (nconn+1));
_put_word(&p, nconn);
_put_word(&p, rp->datablkcnt);
_put_word(&p, rp->datablklen);
skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
skb_queue_tail(&card->dma->send_queue, skb);
b1dma_dispatch_tx(card);
ctrl->appl_registered(ctrl, appl);
}
/* ------------------------------------------------------------- */
void b1dma_release_appl(struct capi_ctr *ctrl, __u16 appl)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
struct sk_buff *skb;
void *p;
skb = alloc_skb(7, GFP_ATOMIC);
if (!skb) {
printk(KERN_CRIT "%s: no memory, lost release appl.\n",
card->name);
return;
}
p = skb->data;
_put_byte(&p, 0);
_put_byte(&p, 0);
_put_byte(&p, SEND_RELEASE);
_put_word(&p, appl);
skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
skb_queue_tail(&card->dma->send_queue, skb);
b1dma_dispatch_tx(card);
}
/* ------------------------------------------------------------- */
void b1dma_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
skb_queue_tail(&card->dma->send_queue, skb);
b1dma_dispatch_tx(card);
}
/* ------------------------------------------------------------- */
int b1dmactl_read_proc(char *page, char **start, off_t off,
int count, int *eof, struct capi_ctr *ctrl)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
unsigned long flags;
__u8 flag;
int len = 0;
char *s;
__u32 txaddr, txlen, rxaddr, rxlen, csr;
len += sprintf(page+len, "%-16s %s\n", "name", card->name);
len += sprintf(page+len, "%-16s 0x%x\n", "io", card->port);
len += sprintf(page+len, "%-16s %d\n", "irq", card->irq);
len += sprintf(page+len, "%-16s 0x%lx\n", "membase", card->membase);
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;
}
len += sprintf(page+len, "%-16s %s\n", "type", s);
if ((s = cinfo->version[VER_DRIVER]) != 0)
len += sprintf(page+len, "%-16s %s\n", "ver_driver", s);
if ((s = cinfo->version[VER_CARDTYPE]) != 0)
len += sprintf(page+len, "%-16s %s\n", "ver_cardtype", s);
if ((s = cinfo->version[VER_SERIAL]) != 0)
len += sprintf(page+len, "%-16s %s\n", "ver_serial", s);
if (card->cardtype != avm_m1) {
flag = ((__u8 *)(ctrl->profile.manu))[3];
if (flag)
len += sprintf(page+len, "%-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)
len += sprintf(page+len, "%-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" : ""
);
}
len += sprintf(page+len, "%-16s %s\n", "cardname", cinfo->cardname);
save_flags(flags);
cli();
txaddr = (__u32)phys_to_virt(b1dmainmeml(card->mbase+0x2c));
txaddr -= (__u32)card->dma->sendbuf;
txlen = b1dmainmeml(card->mbase+0x30);
rxaddr = (__u32)phys_to_virt(b1dmainmeml(card->mbase+0x24));
rxaddr -= (__u32)card->dma->recvbuf;
rxlen = b1dmainmeml(card->mbase+0x28);
csr = b1dmainmeml(card->mbase+AMCC_INTCSR);
restore_flags(flags);
len += sprintf(page+len, "%-16s 0x%lx\n",
"csr (cached)", (unsigned long)card->csr);
len += sprintf(page+len, "%-16s 0x%lx\n",
"csr", (unsigned long)csr);
len += sprintf(page+len, "%-16s %lu\n",
"txoff", (unsigned long)txaddr);
len += sprintf(page+len, "%-16s %lu\n",
"txlen", (unsigned long)txlen);
len += sprintf(page+len, "%-16s %lu\n",
"rxoff", (unsigned long)rxaddr);
len += sprintf(page+len, "%-16s %lu\n",
"rxlen", (unsigned long)rxlen);
if (off+count >= len)
*eof = 1;
if (len < off)
return 0;
*start = page + off;
return ((count < len-off) ? count : len-off);
}
/* ------------------------------------------------------------- */
EXPORT_SYMBOL(b1dma_reset);
EXPORT_SYMBOL(t1pci_detect);
EXPORT_SYMBOL(b1pciv4_detect);
EXPORT_SYMBOL(b1dma_interrupt);
EXPORT_SYMBOL(b1dma_load_firmware);
EXPORT_SYMBOL(b1dma_reset_ctr);
EXPORT_SYMBOL(b1dma_register_appl);
EXPORT_SYMBOL(b1dma_release_appl);
EXPORT_SYMBOL(b1dma_send_message);
EXPORT_SYMBOL(b1dmactl_read_proc);
int b1dma_init(void)
{
char *p;
char rev[32];
if ((p = strchr(revision, ':')) != 0 && p[1]) {
strncpy(rev, p + 2, sizeof(rev));
rev[sizeof(rev)-1] = 0;
if ((p = strchr(rev, '$')) != 0 && p > rev)
*(p-1) = 0;
} else
strcpy(rev, "1.0");
printk(KERN_INFO "b1dma: revision %s\n", rev);
return 0;
}
void b1dma_exit(void)
{
}
module_init(b1dma_init);
module_exit(b1dma_exit);
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