594 lines
15 KiB
C
594 lines
15 KiB
C
/* $Id: t1isa.c,v 1.1.2.3 2004/02/10 01:07:12 keil Exp $
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*
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* Module for AVM T1 HEMA-card.
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*
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* Copyright 1999 by Carsten Paeth <calle@calle.de>
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/skbuff.h>
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#include <linux/delay.h>
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#include <linux/mm.h>
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#include <linux/interrupt.h>
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#include <linux/ioport.h>
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#include <linux/capi.h>
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#include <linux/netdevice.h>
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#include <linux/kernelcapi.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <asm/io.h>
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#include <linux/isdn/capicmd.h>
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#include <linux/isdn/capiutil.h>
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#include <linux/isdn/capilli.h>
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#include "avmcard.h"
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/* ------------------------------------------------------------- */
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static char *revision = "$Revision: 1.1.2.3 $";
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/* ------------------------------------------------------------- */
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MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM T1 HEMA ISA card");
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MODULE_AUTHOR("Carsten Paeth");
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MODULE_LICENSE("GPL");
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/* ------------------------------------------------------------- */
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static int hema_irq_table[16] =
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{0,
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0,
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0,
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0x80, /* irq 3 */
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0,
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0x90, /* irq 5 */
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0,
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0xA0, /* irq 7 */
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0,
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0xB0, /* irq 9 */
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0xC0, /* irq 10 */
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0xD0, /* irq 11 */
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0xE0, /* irq 12 */
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0,
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0,
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0xF0, /* irq 15 */
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};
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static int t1_detectandinit(unsigned int base, unsigned irq, int cardnr)
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{
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unsigned char cregs[8];
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unsigned char reverse_cardnr;
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unsigned char dummy;
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int i;
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reverse_cardnr = ((cardnr & 0x01) << 3) | ((cardnr & 0x02) << 1)
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| ((cardnr & 0x04) >> 1) | ((cardnr & 0x08) >> 3);
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cregs[0] = (HEMA_VERSION_ID << 4) | (reverse_cardnr & 0xf);
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cregs[1] = 0x00; /* fast & slow link connected to CON1 */
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cregs[2] = 0x05; /* fast link 20MBit, slow link 20 MBit */
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cregs[3] = 0;
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cregs[4] = 0x11; /* zero wait state */
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cregs[5] = hema_irq_table[irq & 0xf];
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cregs[6] = 0;
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cregs[7] = 0;
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/*
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* no one else should use the ISA bus in this moment,
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* but no function there to prevent this :-(
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* save_flags(flags); cli();
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*/
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/* board reset */
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t1outp(base, T1_RESETBOARD, 0xf);
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mdelay(100);
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dummy = t1inp(base, T1_FASTLINK+T1_OUTSTAT); /* first read */
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/* write config */
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dummy = (base >> 4) & 0xff;
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for (i=1;i<=0xf;i++) t1outp(base, i, dummy);
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t1outp(base, HEMA_PAL_ID & 0xf, dummy);
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t1outp(base, HEMA_PAL_ID >> 4, cregs[0]);
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for(i=1;i<7;i++) t1outp(base, 0, cregs[i]);
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t1outp(base, ((base >> 4)) & 0x3, cregs[7]);
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/* restore_flags(flags); */
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mdelay(100);
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t1outp(base, T1_FASTLINK+T1_RESETLINK, 0);
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t1outp(base, T1_SLOWLINK+T1_RESETLINK, 0);
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mdelay(10);
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t1outp(base, T1_FASTLINK+T1_RESETLINK, 1);
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t1outp(base, T1_SLOWLINK+T1_RESETLINK, 1);
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mdelay(100);
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t1outp(base, T1_FASTLINK+T1_RESETLINK, 0);
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t1outp(base, T1_SLOWLINK+T1_RESETLINK, 0);
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mdelay(10);
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t1outp(base, T1_FASTLINK+T1_ANALYSE, 0);
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mdelay(5);
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t1outp(base, T1_SLOWLINK+T1_ANALYSE, 0);
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if (t1inp(base, T1_FASTLINK+T1_OUTSTAT) != 0x1) /* tx empty */
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return 1;
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if (t1inp(base, T1_FASTLINK+T1_INSTAT) != 0x0) /* rx empty */
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return 2;
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if (t1inp(base, T1_FASTLINK+T1_IRQENABLE) != 0x0)
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return 3;
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if ((t1inp(base, T1_FASTLINK+T1_FIFOSTAT) & 0xf0) != 0x70)
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return 4;
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if ((t1inp(base, T1_FASTLINK+T1_IRQMASTER) & 0x0e) != 0)
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return 5;
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if ((t1inp(base, T1_FASTLINK+T1_IDENT) & 0x7d) != 1)
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return 6;
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if (t1inp(base, T1_SLOWLINK+T1_OUTSTAT) != 0x1) /* tx empty */
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return 7;
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if ((t1inp(base, T1_SLOWLINK+T1_IRQMASTER) & 0x0e) != 0)
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return 8;
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if ((t1inp(base, T1_SLOWLINK+T1_IDENT) & 0x7d) != 0)
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return 9;
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return 0;
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}
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static irqreturn_t t1isa_interrupt(int interrupt, void *devptr)
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{
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avmcard *card = devptr;
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avmctrl_info *cinfo = &card->ctrlinfo[0];
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struct capi_ctr *ctrl = &cinfo->capi_ctrl;
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unsigned char b1cmd;
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struct sk_buff *skb;
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unsigned ApplId;
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unsigned MsgLen;
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unsigned DataB3Len;
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unsigned NCCI;
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unsigned WindowSize;
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unsigned long flags;
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spin_lock_irqsave(&card->lock, flags);
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while (b1_rx_full(card->port)) {
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b1cmd = b1_get_byte(card->port);
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switch (b1cmd) {
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case RECEIVE_DATA_B3_IND:
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ApplId = (unsigned) b1_get_word(card->port);
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MsgLen = t1_get_slice(card->port, card->msgbuf);
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DataB3Len = t1_get_slice(card->port, card->databuf);
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spin_unlock_irqrestore(&card->lock, flags);
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if (MsgLen < 30) { /* not CAPI 64Bit */
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memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
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MsgLen = 30;
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CAPIMSG_SETLEN(card->msgbuf, 30);
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}
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if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
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printk(KERN_ERR "%s: incoming packet dropped\n",
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card->name);
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} else {
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memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
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memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
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capi_ctr_handle_message(ctrl, ApplId, skb);
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}
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break;
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case RECEIVE_MESSAGE:
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ApplId = (unsigned) b1_get_word(card->port);
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MsgLen = t1_get_slice(card->port, card->msgbuf);
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if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
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spin_unlock_irqrestore(&card->lock, flags);
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printk(KERN_ERR "%s: incoming packet dropped\n",
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card->name);
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} else {
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memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
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if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3)
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capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
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CAPIMSG_NCCI(skb->data),
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CAPIMSG_MSGID(skb->data));
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spin_unlock_irqrestore(&card->lock, flags);
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capi_ctr_handle_message(ctrl, ApplId, skb);
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}
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break;
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case RECEIVE_NEW_NCCI:
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ApplId = b1_get_word(card->port);
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NCCI = b1_get_word(card->port);
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WindowSize = b1_get_word(card->port);
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capilib_new_ncci(&cinfo->ncci_head, ApplId, NCCI, WindowSize);
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spin_unlock_irqrestore(&card->lock, flags);
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break;
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case RECEIVE_FREE_NCCI:
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ApplId = b1_get_word(card->port);
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NCCI = b1_get_word(card->port);
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if (NCCI != 0xffffffff)
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capilib_free_ncci(&cinfo->ncci_head, ApplId, NCCI);
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spin_unlock_irqrestore(&card->lock, flags);
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break;
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case RECEIVE_START:
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b1_put_byte(card->port, SEND_POLLACK);
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spin_unlock_irqrestore(&card->lock, flags);
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capi_ctr_resume_output(ctrl);
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break;
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case RECEIVE_STOP:
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spin_unlock_irqrestore(&card->lock, flags);
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capi_ctr_suspend_output(ctrl);
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break;
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case RECEIVE_INIT:
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cinfo->versionlen = t1_get_slice(card->port, cinfo->versionbuf);
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spin_unlock_irqrestore(&card->lock, flags);
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b1_parse_version(cinfo);
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printk(KERN_INFO "%s: %s-card (%s) now active\n",
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card->name,
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cinfo->version[VER_CARDTYPE],
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cinfo->version[VER_DRIVER]);
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capi_ctr_ready(ctrl);
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break;
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case RECEIVE_TASK_READY:
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ApplId = (unsigned) b1_get_word(card->port);
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MsgLen = t1_get_slice(card->port, card->msgbuf);
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spin_unlock_irqrestore(&card->lock, flags);
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card->msgbuf[MsgLen] = 0;
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while ( MsgLen > 0
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&& ( card->msgbuf[MsgLen-1] == '\n'
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|| card->msgbuf[MsgLen-1] == '\r')) {
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card->msgbuf[MsgLen-1] = 0;
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MsgLen--;
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}
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printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
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card->name, ApplId, card->msgbuf);
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break;
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case RECEIVE_DEBUGMSG:
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MsgLen = t1_get_slice(card->port, card->msgbuf);
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spin_unlock_irqrestore(&card->lock, flags);
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card->msgbuf[MsgLen] = 0;
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while ( MsgLen > 0
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&& ( card->msgbuf[MsgLen-1] == '\n'
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|| card->msgbuf[MsgLen-1] == '\r')) {
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card->msgbuf[MsgLen-1] = 0;
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MsgLen--;
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}
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printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
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break;
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case 0xff:
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spin_unlock_irqrestore(&card->lock, flags);
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printk(KERN_ERR "%s: card reseted ?\n", card->name);
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return IRQ_HANDLED;
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default:
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spin_unlock_irqrestore(&card->lock, flags);
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printk(KERN_ERR "%s: b1_interrupt: 0x%x ???\n",
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card->name, b1cmd);
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return IRQ_NONE;
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}
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}
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return IRQ_HANDLED;
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}
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/* ------------------------------------------------------------- */
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static int t1isa_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
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{
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avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
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avmcard *card = cinfo->card;
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unsigned int port = card->port;
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unsigned long flags;
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int retval;
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t1_disable_irq(port);
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b1_reset(port);
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if ((retval = b1_load_t4file(card, &data->firmware))) {
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b1_reset(port);
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printk(KERN_ERR "%s: failed to load t4file!!\n",
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card->name);
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return retval;
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}
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if (data->configuration.len > 0 && data->configuration.data) {
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if ((retval = b1_load_config(card, &data->configuration))) {
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b1_reset(port);
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printk(KERN_ERR "%s: failed to load config!!\n",
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card->name);
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return retval;
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}
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}
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if (!b1_loaded(card)) {
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printk(KERN_ERR "%s: failed to load t4file.\n", card->name);
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return -EIO;
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}
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spin_lock_irqsave(&card->lock, flags);
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b1_setinterrupt(port, card->irq, card->cardtype);
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b1_put_byte(port, SEND_INIT);
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b1_put_word(port, CAPI_MAXAPPL);
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b1_put_word(port, AVM_NCCI_PER_CHANNEL*30);
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b1_put_word(port, ctrl->cnr - 1);
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spin_unlock_irqrestore(&card->lock, flags);
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return 0;
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}
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static void t1isa_reset_ctr(struct capi_ctr *ctrl)
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{
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avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
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avmcard *card = cinfo->card;
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unsigned int port = card->port;
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unsigned long flags;
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t1_disable_irq(port);
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b1_reset(port);
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b1_reset(port);
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memset(cinfo->version, 0, sizeof(cinfo->version));
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spin_lock_irqsave(&card->lock, flags);
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capilib_release(&cinfo->ncci_head);
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spin_unlock_irqrestore(&card->lock, flags);
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capi_ctr_down(ctrl);
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}
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static void t1isa_remove(struct pci_dev *pdev)
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{
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avmctrl_info *cinfo = pci_get_drvdata(pdev);
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avmcard *card;
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if (!cinfo)
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return;
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card = cinfo->card;
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t1_disable_irq(card->port);
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b1_reset(card->port);
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b1_reset(card->port);
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t1_reset(card->port);
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detach_capi_ctr(&cinfo->capi_ctrl);
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free_irq(card->irq, card);
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release_region(card->port, AVMB1_PORTLEN);
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b1_free_card(card);
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}
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/* ------------------------------------------------------------- */
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static u16 t1isa_send_message(struct capi_ctr *ctrl, struct sk_buff *skb);
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static char *t1isa_procinfo(struct capi_ctr *ctrl);
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static int t1isa_probe(struct pci_dev *pdev, int cardnr)
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{
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avmctrl_info *cinfo;
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avmcard *card;
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int retval;
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card = b1_alloc_card(1);
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if (!card) {
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printk(KERN_WARNING "t1isa: no memory.\n");
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retval = -ENOMEM;
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goto err;
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}
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cinfo = card->ctrlinfo;
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card->port = pci_resource_start(pdev, 0);
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card->irq = pdev->irq;
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card->cardtype = avm_t1isa;
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card->cardnr = cardnr;
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sprintf(card->name, "t1isa-%x", card->port);
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if (!(((card->port & 0x7) == 0) && ((card->port & 0x30) != 0x30))) {
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printk(KERN_WARNING "t1isa: invalid port 0x%x.\n", card->port);
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retval = -EINVAL;
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goto err_free;
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}
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if (hema_irq_table[card->irq & 0xf] == 0) {
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printk(KERN_WARNING "t1isa: irq %d not valid.\n", card->irq);
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retval = -EINVAL;
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goto err_free;
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}
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if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
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printk(KERN_INFO "t1isa: ports 0x%03x-0x%03x in use.\n",
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card->port, card->port + AVMB1_PORTLEN);
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retval = -EBUSY;
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goto err_free;
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}
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retval = request_irq(card->irq, t1isa_interrupt, 0, card->name, card);
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if (retval) {
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printk(KERN_INFO "t1isa: unable to get IRQ %d.\n", card->irq);
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retval = -EBUSY;
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goto err_release_region;
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}
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if ((retval = t1_detectandinit(card->port, card->irq, card->cardnr)) != 0) {
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printk(KERN_INFO "t1isa: NO card at 0x%x (%d)\n",
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card->port, retval);
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retval = -ENODEV;
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goto err_free_irq;
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}
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t1_disable_irq(card->port);
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b1_reset(card->port);
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cinfo->capi_ctrl.owner = THIS_MODULE;
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cinfo->capi_ctrl.driver_name = "t1isa";
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cinfo->capi_ctrl.driverdata = cinfo;
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cinfo->capi_ctrl.register_appl = b1_register_appl;
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cinfo->capi_ctrl.release_appl = b1_release_appl;
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cinfo->capi_ctrl.send_message = t1isa_send_message;
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cinfo->capi_ctrl.load_firmware = t1isa_load_firmware;
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cinfo->capi_ctrl.reset_ctr = t1isa_reset_ctr;
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cinfo->capi_ctrl.procinfo = t1isa_procinfo;
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cinfo->capi_ctrl.ctr_read_proc = b1ctl_read_proc;
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strcpy(cinfo->capi_ctrl.name, card->name);
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retval = attach_capi_ctr(&cinfo->capi_ctrl);
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if (retval) {
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printk(KERN_INFO "t1isa: attach controller failed.\n");
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goto err_free_irq;
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}
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printk(KERN_INFO "t1isa: AVM T1 ISA at i/o %#x, irq %d, card %d\n",
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card->port, card->irq, card->cardnr);
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pci_set_drvdata(pdev, cinfo);
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return 0;
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err_free_irq:
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free_irq(card->irq, card);
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err_release_region:
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release_region(card->port, AVMB1_PORTLEN);
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err_free:
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b1_free_card(card);
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err:
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return retval;
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}
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static u16 t1isa_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
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{
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avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
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avmcard *card = cinfo->card;
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unsigned int port = card->port;
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unsigned long flags;
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u16 len = CAPIMSG_LEN(skb->data);
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u8 cmd = CAPIMSG_COMMAND(skb->data);
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u8 subcmd = CAPIMSG_SUBCOMMAND(skb->data);
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u16 dlen, retval;
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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);
|
|
t1_put_slice(port, skb->data, len);
|
|
t1_put_slice(port, skb->data + len, dlen);
|
|
} else {
|
|
b1_put_byte(port, SEND_MESSAGE);
|
|
t1_put_slice(port, skb->data, len);
|
|
}
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
dev_kfree_skb_any(skb);
|
|
return CAPI_NOERROR;
|
|
}
|
|
/* ------------------------------------------------------------- */
|
|
|
|
static char *t1isa_procinfo(struct capi_ctr *ctrl)
|
|
{
|
|
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
|
|
|
|
if (!cinfo)
|
|
return "";
|
|
sprintf(cinfo->infobuf, "%s %s 0x%x %d %d",
|
|
cinfo->cardname[0] ? cinfo->cardname : "-",
|
|
cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
|
|
cinfo->card ? cinfo->card->port : 0x0,
|
|
cinfo->card ? cinfo->card->irq : 0,
|
|
cinfo->card ? cinfo->card->cardnr : 0
|
|
);
|
|
return cinfo->infobuf;
|
|
}
|
|
|
|
|
|
/* ------------------------------------------------------------- */
|
|
|
|
#define MAX_CARDS 4
|
|
static struct pci_dev isa_dev[MAX_CARDS];
|
|
static int io[MAX_CARDS];
|
|
static int irq[MAX_CARDS];
|
|
static int cardnr[MAX_CARDS];
|
|
|
|
module_param_array(io, int, NULL, 0);
|
|
module_param_array(irq, int, NULL, 0);
|
|
module_param_array(cardnr, int, NULL, 0);
|
|
MODULE_PARM_DESC(io, "I/O base address(es)");
|
|
MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
|
|
MODULE_PARM_DESC(cardnr, "Card number(s) (as jumpered)");
|
|
|
|
static int t1isa_add_card(struct capi_driver *driver, capicardparams *data)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < MAX_CARDS; i++) {
|
|
if (isa_dev[i].resource[0].start)
|
|
continue;
|
|
|
|
isa_dev[i].resource[0].start = data->port;
|
|
isa_dev[i].irq = data->irq;
|
|
|
|
if (t1isa_probe(&isa_dev[i], data->cardnr) == 0)
|
|
return 0;
|
|
}
|
|
return -ENODEV;
|
|
}
|
|
|
|
static struct capi_driver capi_driver_t1isa = {
|
|
.name = "t1isa",
|
|
.revision = "1.0",
|
|
.add_card = t1isa_add_card,
|
|
};
|
|
|
|
static int __init t1isa_init(void)
|
|
{
|
|
char rev[32];
|
|
char *p;
|
|
int i;
|
|
|
|
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");
|
|
|
|
for (i = 0; i < MAX_CARDS; i++) {
|
|
if (!io[i])
|
|
break;
|
|
|
|
isa_dev[i].resource[0].start = io[i];
|
|
isa_dev[i].irq = irq[i];
|
|
|
|
if (t1isa_probe(&isa_dev[i], cardnr[i]) != 0)
|
|
return -ENODEV;
|
|
}
|
|
|
|
strlcpy(capi_driver_t1isa.revision, rev, 32);
|
|
register_capi_driver(&capi_driver_t1isa);
|
|
printk(KERN_INFO "t1isa: revision %s\n", rev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __exit t1isa_exit(void)
|
|
{
|
|
int i;
|
|
|
|
unregister_capi_driver(&capi_driver_t1isa);
|
|
for (i = 0; i < MAX_CARDS; i++) {
|
|
if (!io[i])
|
|
break;
|
|
|
|
t1isa_remove(&isa_dev[i]);
|
|
}
|
|
}
|
|
|
|
module_init(t1isa_init);
|
|
module_exit(t1isa_exit);
|