b1dma.c
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上传日期:2013-02-24
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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): underrunn", 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=%dn",
- inint, txlen);
- #endif
- } else {
- txlen = skb->len-2;
- #ifdef CONFIG_B1DMA_POLLDEBUG
- if (skb->data[2] == SEND_POLLACK)
- printk(KERN_INFO "%s: send ackn", card->name);
- #endif
- #ifdef CONFIG_B1DMA_DEBUG
- printk(KERN_DEBUG "tx(%d): put 0x%x len=%dn",
- 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 ackn",
- 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 %lun", 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 droppedn",
- 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 droppedn",
- 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 polln", 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 activen",
- 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: %sn", 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 devicen");
- return;
- }
- if (card->interrupt) {
- printk(KERN_ERR "%s: reentering interrupt handern", 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 moden", card->name, ans);
- return 0;
- }
- }
- printk(KERN_ERR "%s: b1dma_loaded: firmware not runningn", 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 %sn", "name", card->name);
- len += sprintf(page+len, "%-16s 0x%xn", "io", card->port);
- len += sprintf(page+len, "%-16s %dn", "irq", card->irq);
- len += sprintf(page+len, "%-16s 0x%lxn", "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 %sn", "type", s);
- if ((s = cinfo->version[VER_DRIVER]) != 0)
- len += sprintf(page+len, "%-16s %sn", "ver_driver", s);
- if ((s = cinfo->version[VER_CARDTYPE]) != 0)
- len += sprintf(page+len, "%-16s %sn", "ver_cardtype", s);
- if ((s = cinfo->version[VER_SERIAL]) != 0)
- len += sprintf(page+len, "%-16s %sn", "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%sn",
- "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%sn",
- "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 %sn", "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%lxn",
- "csr (cached)", (unsigned long)card->csr);
- len += sprintf(page+len, "%-16s 0x%lxn",
- "csr", (unsigned long)csr);
- len += sprintf(page+len, "%-16s %lun",
- "txoff", (unsigned long)txaddr);
- len += sprintf(page+len, "%-16s %lun",
- "txlen", (unsigned long)txlen);
- len += sprintf(page+len, "%-16s %lun",
- "rxoff", (unsigned long)rxaddr);
- len += sprintf(page+len, "%-16s %lun",
- "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 %sn", rev);
- return 0;
- }
- void b1dma_exit(void)
- {
- }
- module_init(b1dma_init);
- module_exit(b1dma_exit);