c4.c
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上传日期:2013-04-10
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- /* $Id: c4.c,v 1.1.4.1 2001/11/20 14:19:34 kai Exp $
- *
- * Module for AVM C4 & C2 card.
- *
- * 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/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/pci.h>
- #include <linux/capi.h>
- #include <linux/kernelcapi.h>
- #include <linux/init.h>
- #include <asm/io.h>
- #include <asm/uaccess.h>
- #include <linux/netdevice.h>
- #include "capicmd.h"
- #include "capiutil.h"
- #include "capilli.h"
- #include "avmcard.h"
- static char *revision = "$Revision: 1.1.4.1 $";
- #undef CONFIG_C4_DEBUG
- #undef CONFIG_C4_POLLDEBUG
- /* ------------------------------------------------------------- */
- static int suppress_pollack;
- static struct pci_device_id c4_pci_tbl[] __initdata = {
- { PCI_VENDOR_ID_DEC,PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C4 },
- { PCI_VENDOR_ID_DEC,PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C2 },
- { } /* Terminating entry */
- };
- MODULE_DEVICE_TABLE(pci, c4_pci_tbl);
- MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM C2/C4 cards");
- MODULE_AUTHOR("Carsten Paeth");
- MODULE_LICENSE("GPL");
- MODULE_PARM(suppress_pollack, "0-1i");
- /* ------------------------------------------------------------- */
- static struct capi_driver_interface *di;
- /* ------------------------------------------------------------- */
- static void c4_dispatch_tx(avmcard *card);
- /* ------------------------------------------------------------- */
- #define DC21285_DRAM_A0MR 0x40000000
- #define DC21285_DRAM_A1MR 0x40004000
- #define DC21285_DRAM_A2MR 0x40008000
- #define DC21285_DRAM_A3MR 0x4000C000
- #define CAS_OFFSET 0x88
- #define DC21285_ARMCSR_BASE 0x42000000
- #define PCI_OUT_INT_STATUS 0x30
- #define PCI_OUT_INT_MASK 0x34
- #define MAILBOX_0 0x50
- #define MAILBOX_1 0x54
- #define MAILBOX_2 0x58
- #define MAILBOX_3 0x5C
- #define DOORBELL 0x60
- #define DOORBELL_SETUP 0x64
- #define CHAN_1_CONTROL 0x90
- #define CHAN_2_CONTROL 0xB0
- #define DRAM_TIMING 0x10C
- #define DRAM_ADDR_SIZE_0 0x110
- #define DRAM_ADDR_SIZE_1 0x114
- #define DRAM_ADDR_SIZE_2 0x118
- #define DRAM_ADDR_SIZE_3 0x11C
- #define SA_CONTROL 0x13C
- #define XBUS_CYCLE 0x148
- #define XBUS_STROBE 0x14C
- #define DBELL_PCI_MASK 0x150
- #define DBELL_SA_MASK 0x154
- #define SDRAM_SIZE 0x1000000
- /* ------------------------------------------------------------- */
- #define MBOX_PEEK_POKE MAILBOX_0
- #define DBELL_ADDR 0x01
- #define DBELL_DATA 0x02
- #define DBELL_RNWR 0x40
- #define DBELL_INIT 0x80
- /* ------------------------------------------------------------- */
- #define MBOX_UP_ADDR MAILBOX_0
- #define MBOX_UP_LEN MAILBOX_1
- #define MBOX_DOWN_ADDR MAILBOX_2
- #define MBOX_DOWN_LEN MAILBOX_3
- #define DBELL_UP_HOST 0x00000100
- #define DBELL_UP_ARM 0x00000200
- #define DBELL_DOWN_HOST 0x00000400
- #define DBELL_DOWN_ARM 0x00000800
- #define DBELL_RESET_HOST 0x40000000
- #define DBELL_RESET_ARM 0x80000000
- /* ------------------------------------------------------------- */
- #define DRAM_TIMING_DEF 0x001A01A5
- #define DRAM_AD_SZ_DEF0 0x00000045
- #define DRAM_AD_SZ_NULL 0x00000000
- #define SA_CTL_ALLRIGHT 0x64AA0271
- #define INIT_XBUS_CYCLE 0x100016DB
- #define INIT_XBUS_STROBE 0xF1F1F1F1
- /* ------------------------------------------------------------- */
- #define RESET_TIMEOUT (15*HZ) /* 15 sec */
- #define PEEK_POKE_TIMEOUT (HZ/10) /* 0.1 sec */
- /* ------------------------------------------------------------- */
- #define c4outmeml(addr, value) writel(value, addr)
- #define c4inmeml(addr) readl(addr)
- #define c4outmemw(addr, value) writew(value, addr)
- #define c4inmemw(addr) readw(addr)
- #define c4outmemb(addr, value) writeb(value, addr)
- #define c4inmemb(addr) readb(addr)
- /* ------------------------------------------------------------- */
- static inline int wait_for_doorbell(avmcard *card, unsigned long t)
- {
- unsigned long stop;
- stop = jiffies + t;
- while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
- if (!time_before(jiffies, stop))
- return -1;
- }
- return 0;
- }
- static int c4_poke(avmcard *card, unsigned long off, unsigned long value)
- {
- if (wait_for_doorbell(card, HZ/10) < 0)
- return -1;
-
- c4outmeml(card->mbase+MBOX_PEEK_POKE, off);
- c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
- if (wait_for_doorbell(card, HZ/10) < 0)
- return -1;
- c4outmeml(card->mbase+MBOX_PEEK_POKE, value);
- c4outmeml(card->mbase+DOORBELL, DBELL_DATA | DBELL_ADDR);
- return 0;
- }
- static int c4_peek(avmcard *card, unsigned long off, unsigned long *valuep)
- {
- if (wait_for_doorbell(card, HZ/10) < 0)
- return -1;
- c4outmeml(card->mbase+MBOX_PEEK_POKE, off);
- c4outmeml(card->mbase+DOORBELL, DBELL_RNWR | DBELL_ADDR);
- if (wait_for_doorbell(card, HZ/10) < 0)
- return -1;
- *valuep = c4inmeml(card->mbase+MBOX_PEEK_POKE);
- return 0;
- }
- /* ------------------------------------------------------------- */
- static int c4_load_t4file(avmcard *card, capiloaddatapart * t4file)
- {
- __u32 val;
- unsigned char *dp;
- int left, retval;
- __u32 loadoff = 0;
- dp = t4file->data;
- left = t4file->len;
- while (left >= sizeof(__u32)) {
- if (t4file->user) {
- retval = copy_from_user(&val, dp, sizeof(val));
- if (retval)
- return -EFAULT;
- } else {
- memcpy(&val, dp, sizeof(val));
- }
- if (c4_poke(card, loadoff, val)) {
- printk(KERN_ERR "%s: corrupted firmware file ?n",
- card->name);
- return -EIO;
- }
- left -= sizeof(__u32);
- dp += sizeof(__u32);
- loadoff += sizeof(__u32);
- }
- if (left) {
- val = 0;
- if (t4file->user) {
- retval = copy_from_user(&val, dp, left);
- if (retval)
- return -EFAULT;
- } else {
- memcpy(&val, dp, left);
- }
- if (c4_poke(card, loadoff, val)) {
- printk(KERN_ERR "%s: corrupted firmware file ?n",
- card->name);
- return -EIO;
- }
- }
- return 0;
- }
- /* ------------------------------------------------------------- */
- 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;
- }
- /* ------------------------------------------------------------- */
- static void c4_reset(avmcard *card)
- {
- unsigned long stop;
- c4outmeml(card->mbase+DOORBELL, DBELL_RESET_ARM);
- stop = jiffies + HZ*10;
- while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
- if (!time_before(jiffies, stop))
- return;
- c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
- }
- c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0);
- c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0);
- }
- /* ------------------------------------------------------------- */
- static int c4_detect(avmcard *card)
- {
- unsigned long stop, dummy;
- c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c);
- if (c4inmeml(card->mbase+PCI_OUT_INT_MASK) != 0x0c)
- return 1;
- c4outmeml(card->mbase+DOORBELL, DBELL_RESET_ARM);
- stop = jiffies + HZ*10;
- while (c4inmeml(card->mbase+DOORBELL) != 0xffffffff) {
- if (!time_before(jiffies, stop))
- return 2;
- c4outmeml(card->mbase+DOORBELL, DBELL_ADDR);
- }
- c4_poke(card, DC21285_ARMCSR_BASE + CHAN_1_CONTROL, 0);
- c4_poke(card, DC21285_ARMCSR_BASE + CHAN_2_CONTROL, 0);
- c4outmeml(card->mbase+MAILBOX_0, 0x55aa55aa);
- if (c4inmeml(card->mbase+MAILBOX_0) != 0x55aa55aa) return 3;
- c4outmeml(card->mbase+MAILBOX_0, 0xaa55aa55);
- if (c4inmeml(card->mbase+MAILBOX_0) != 0xaa55aa55) return 4;
- if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_SA_MASK, 0)) return 5;
- if (c4_poke(card, DC21285_ARMCSR_BASE+DBELL_PCI_MASK, 0)) return 6;
- if (c4_poke(card, DC21285_ARMCSR_BASE+SA_CONTROL, SA_CTL_ALLRIGHT))
- return 7;
- if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_CYCLE, INIT_XBUS_CYCLE))
- return 8;
- if (c4_poke(card, DC21285_ARMCSR_BASE+XBUS_STROBE, INIT_XBUS_STROBE))
- return 8;
- if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, 0)) return 9;
- mdelay(1);
- if (c4_peek(card, DC21285_DRAM_A0MR, &dummy)) return 10;
- if (c4_peek(card, DC21285_DRAM_A1MR, &dummy)) return 11;
- if (c4_peek(card, DC21285_DRAM_A2MR, &dummy)) return 12;
- if (c4_peek(card, DC21285_DRAM_A3MR, &dummy)) return 13;
- if (c4_poke(card, DC21285_DRAM_A0MR+CAS_OFFSET, 0)) return 14;
- if (c4_poke(card, DC21285_DRAM_A1MR+CAS_OFFSET, 0)) return 15;
- if (c4_poke(card, DC21285_DRAM_A2MR+CAS_OFFSET, 0)) return 16;
- if (c4_poke(card, DC21285_DRAM_A3MR+CAS_OFFSET, 0)) return 17;
- mdelay(1);
- if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_TIMING, DRAM_TIMING_DEF))
- return 18;
- if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_0,DRAM_AD_SZ_DEF0))
- return 19;
- if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_1,DRAM_AD_SZ_NULL))
- return 20;
- if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_2,DRAM_AD_SZ_NULL))
- return 21;
- if (c4_poke(card, DC21285_ARMCSR_BASE+DRAM_ADDR_SIZE_3,DRAM_AD_SZ_NULL))
- return 22;
- /* Transputer test */
-
- if ( c4_poke(card, 0x000000, 0x11111111)
- || c4_poke(card, 0x400000, 0x22222222)
- || c4_poke(card, 0x800000, 0x33333333)
- || c4_poke(card, 0xC00000, 0x44444444))
- return 23;
- if ( c4_peek(card, 0x000000, &dummy) || dummy != 0x11111111
- || c4_peek(card, 0x400000, &dummy) || dummy != 0x22222222
- || c4_peek(card, 0x800000, &dummy) || dummy != 0x33333333
- || c4_peek(card, 0xC00000, &dummy) || dummy != 0x44444444)
- return 24;
- if ( c4_poke(card, 0x000000, 0x55555555)
- || c4_poke(card, 0x400000, 0x66666666)
- || c4_poke(card, 0x800000, 0x77777777)
- || c4_poke(card, 0xC00000, 0x88888888))
- return 25;
- if ( c4_peek(card, 0x000000, &dummy) || dummy != 0x55555555
- || c4_peek(card, 0x400000, &dummy) || dummy != 0x66666666
- || c4_peek(card, 0x800000, &dummy) || dummy != 0x77777777
- || c4_peek(card, 0xC00000, &dummy) || dummy != 0x88888888)
- return 26;
- return 0;
- }
- /* ------------------------------------------------------------- */
- static void c4_dispatch_tx(avmcard *card)
- {
- avmcard_dmainfo *dma = card->dma;
- unsigned long flags;
- struct sk_buff *skb;
- __u8 cmd, subcmd;
- __u16 len;
- __u32 txlen;
- void *p;
-
- save_flags(flags);
- cli();
- if (card->csr & DBELL_DOWN_ARM) { /* tx busy */
- restore_flags(flags);
- return;
- }
- skb = skb_dequeue(&dma->send_queue);
- if (!skb) {
- #ifdef CONFIG_C4_DEBUG
- printk(KERN_DEBUG "%s: tx underrunn", card->name);
- #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_C4_DEBUG
- printk(KERN_DEBUG "%s: tx put msg len=%dn", card->name, txlen);
- #endif
- } else {
- txlen = skb->len-2;
- #ifdef CONFIG_C4_POLLDEBUG
- if (skb->data[2] == SEND_POLLACK)
- printk(KERN_INFO "%s: ack to c4n", card->name);
- #endif
- #ifdef CONFIG_C4_DEBUG
- printk(KERN_DEBUG "%s: tx put 0x%x len=%dn",
- card->name, skb->data[2], txlen);
- #endif
- memcpy(dma->sendbuf, skb->data+2, skb->len-2);
- }
- txlen = (txlen + 3) & ~3;
- c4outmeml(card->mbase+MBOX_DOWN_ADDR, virt_to_phys(dma->sendbuf));
- c4outmeml(card->mbase+MBOX_DOWN_LEN, txlen);
- card->csr |= DBELL_DOWN_ARM;
- c4outmeml(card->mbase+DOORBELL, DBELL_DOWN_ARM);
- 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);
- c4_dispatch_tx(card);
- }
- /* ------------------------------------------------------------- */
- static void c4_handle_rx(avmcard *card)
- {
- avmcard_dmainfo *dma = card->dma;
- struct capi_ctr *ctrl;
- avmctrl_info *cinfo;
- struct sk_buff *skb;
- void *p = dma->recvbuf;
- __u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize;
- __u8 b1cmd = _get_byte(&p);
- __u32 cidx;
- #ifdef CONFIG_C4_DEBUG
- printk(KERN_DEBUG "%s: rx 0x%x len=%lun", card->name,
- 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);
- cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
- if (cidx >= card->nlogcontr) cidx = 0;
- ctrl = card->ctrlinfo[cidx].capi_ctrl;
- 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);
- cidx = CAPIMSG_CONTROLLER(card->msgbuf)-card->cardnr;
- if (cidx >= card->nlogcontr) cidx = 0;
- ctrl = card->ctrlinfo[cidx].capi_ctrl;
- 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);
- cidx = (NCCI&0x7f) - card->cardnr;
- if (cidx >= card->nlogcontr) cidx = 0;
- ctrl = card->ctrlinfo[cidx].capi_ctrl;
- ctrl->new_ncci(ctrl, ApplId, NCCI, WindowSize);
- break;
- case RECEIVE_FREE_NCCI:
- ApplId = _get_word(&p);
- NCCI = _get_word(&p);
- if (NCCI != 0xffffffff) {
- cidx = (NCCI&0x7f) - card->cardnr;
- if (cidx >= card->nlogcontr) cidx = 0;
- ctrl = card->ctrlinfo[cidx].capi_ctrl;
- if (ctrl)
- ctrl->free_ncci(ctrl, ApplId, NCCI);
- } else {
- for (cidx=0; cidx < 4; cidx++) {
- ctrl = card->ctrlinfo[cidx].capi_ctrl;
- if (ctrl)
- ctrl->appl_released(ctrl, ApplId);
- }
- }
- break;
- case RECEIVE_START:
- #ifdef CONFIG_C4_POLLDEBUG
- printk(KERN_INFO "%s: poll from c4n", card->name);
- #endif
- if (!suppress_pollack)
- queue_pollack(card);
- for (cidx=0; cidx < 4; cidx++) {
- ctrl = card->ctrlinfo[cidx].capi_ctrl;
- if (ctrl)
- ctrl->resume_output(ctrl);
- }
- break;
- case RECEIVE_STOP:
- for (cidx=0; cidx < 4; cidx++) {
- ctrl = card->ctrlinfo[cidx].capi_ctrl;
- if (ctrl)
- ctrl->suspend_output(ctrl);
- }
- break;
- case RECEIVE_INIT:
- cidx = card->nlogcontr;
- if (cidx >= 4 || !card->ctrlinfo[cidx].capi_ctrl) {
- printk(KERN_ERR "%s: card with %d controllers ??n",
- card->name, cidx+1);
- break;
- }
- card->nlogcontr++;
- cinfo = &card->ctrlinfo[cidx];
- ctrl = cinfo->capi_ctrl;
- 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(cinfo->capi_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: c4_interrupt: 0x%x ???n",
- card->name, b1cmd);
- return;
- }
- }
- /* ------------------------------------------------------------- */
- static void c4_handle_interrupt(avmcard *card)
- {
- __u32 status = c4inmeml(card->mbase+DOORBELL);
- if (status & DBELL_RESET_HOST) {
- int i;
- c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x0c);
- if (card->nlogcontr == 0)
- return;
- printk(KERN_ERR "%s: unexpected resetn", card->name);
- for (i=0; i < 4; i++) {
- avmctrl_info *cinfo = &card->ctrlinfo[i];
- memset(cinfo->version, 0, sizeof(cinfo->version));
- if (cinfo->capi_ctrl)
- cinfo->capi_ctrl->reseted(cinfo->capi_ctrl);
- }
- card->nlogcontr = 0;
- return;
- }
- status &= (DBELL_UP_HOST | DBELL_DOWN_HOST);
- if (!status)
- return;
- c4outmeml(card->mbase+DOORBELL, status);
- if ((status & DBELL_UP_HOST) != 0) {
- card->dma->recvlen = c4inmeml(card->mbase+MBOX_UP_LEN);
- c4outmeml(card->mbase+MBOX_UP_LEN, 0);
- c4_handle_rx(card);
- card->dma->recvlen = 0;
- c4outmeml(card->mbase+MBOX_UP_LEN, sizeof(card->dma->recvbuf));
- c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM);
- }
- if ((status & DBELL_DOWN_HOST) != 0) {
- card->csr &= ~DBELL_DOWN_ARM;
- c4_dispatch_tx(card);
- } else if (card->csr & DBELL_DOWN_HOST) {
- if (c4inmeml(card->mbase+MBOX_DOWN_LEN) == 0) {
- card->csr &= ~DBELL_DOWN_ARM;
- c4_dispatch_tx(card);
- }
- }
- }
- static void c4_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
- {
- avmcard *card;
- card = (avmcard *) devptr;
- if (!card) {
- printk(KERN_WARNING "%s: interrupt: wrong devicen", card->name);
- return;
- }
- if (card->interrupt) {
- printk(KERN_ERR "%s: reentering interrupt handern",
- card->name);
- return;
- }
- card->interrupt = 1;
- c4_handle_interrupt(card);
- card->interrupt = 0;
- }
- /* ------------------------------------------------------------- */
- static void c4_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);
- c4_dispatch_tx(card);
- }
- static int queue_sendconfigword(avmcard *card, __u32 val)
- {
- struct sk_buff *skb;
- void *p;
- skb = alloc_skb(3+4, GFP_ATOMIC);
- if (!skb) {
- printk(KERN_CRIT "%s: no memory, send confign",
- card->name);
- return -ENOMEM;
- }
- p = skb->data;
- _put_byte(&p, 0);
- _put_byte(&p, 0);
- _put_byte(&p, SEND_CONFIG);
- _put_word(&p, val);
- skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
- skb_queue_tail(&card->dma->send_queue, skb);
- c4_dispatch_tx(card);
- return 0;
- }
- static int queue_sendconfig(avmcard *card, char cval[4])
- {
- struct sk_buff *skb;
- void *p;
- skb = alloc_skb(3+4, GFP_ATOMIC);
- if (!skb) {
- printk(KERN_CRIT "%s: no memory, send confign",
- card->name);
- return -ENOMEM;
- }
- p = skb->data;
- _put_byte(&p, 0);
- _put_byte(&p, 0);
- _put_byte(&p, SEND_CONFIG);
- _put_byte(&p, cval[0]);
- _put_byte(&p, cval[1]);
- _put_byte(&p, cval[2]);
- _put_byte(&p, cval[3]);
- skb_put(skb, (__u8 *)p - (__u8 *)skb->data);
- skb_queue_tail(&card->dma->send_queue, skb);
- c4_dispatch_tx(card);
- return 0;
- }
- static int c4_send_config(avmcard *card, capiloaddatapart * config)
- {
- __u8 val[4];
- unsigned char *dp;
- int left, retval;
-
- if ((retval = queue_sendconfigword(card, 1)) != 0)
- return retval;
- if ((retval = queue_sendconfigword(card, config->len)) != 0)
- return retval;
- dp = config->data;
- left = config->len;
- while (left >= sizeof(__u32)) {
- if (config->user) {
- retval = copy_from_user(val, dp, sizeof(val));
- if (retval)
- return -EFAULT;
- } else {
- memcpy(val, dp, sizeof(val));
- }
- if ((retval = queue_sendconfig(card, val)) != 0)
- return retval;
- left -= sizeof(val);
- dp += sizeof(val);
- }
- if (left) {
- memset(val, 0, sizeof(val));
- if (config->user) {
- retval = copy_from_user(&val, dp, left);
- if (retval)
- return -EFAULT;
- } else {
- memcpy(&val, dp, left);
- }
- if ((retval = queue_sendconfig(card, val)) != 0)
- return retval;
- }
- return 0;
- }
- static int c4_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
- {
- avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
- avmcard *card = cinfo->card;
- unsigned long flags;
- int retval;
- if ((retval = c4_load_t4file(card, &data->firmware))) {
- printk(KERN_ERR "%s: failed to load t4file!!n",
- card->name);
- c4_reset(card);
- return retval;
- }
- save_flags(flags);
- cli();
- card->csr = 0;
- c4outmeml(card->mbase+MBOX_UP_LEN, 0);
- c4outmeml(card->mbase+MBOX_DOWN_LEN, 0);
- c4outmeml(card->mbase+DOORBELL, DBELL_INIT);
- mdelay(1);
- c4outmeml(card->mbase+DOORBELL,
- DBELL_UP_HOST | DBELL_DOWN_HOST | DBELL_RESET_HOST);
- c4outmeml(card->mbase+PCI_OUT_INT_MASK, 0x08);
- card->dma->recvlen = 0;
- c4outmeml(card->mbase+MBOX_UP_ADDR, virt_to_phys(card->dma->recvbuf));
- c4outmeml(card->mbase+MBOX_UP_LEN, sizeof(card->dma->recvbuf));
- c4outmeml(card->mbase+DOORBELL, DBELL_UP_ARM);
- restore_flags(flags);
- if (data->configuration.len > 0 && data->configuration.data) {
- retval = c4_send_config(card, &data->configuration);
- if (retval) {
- printk(KERN_ERR "%s: failed to set config!!n",
- card->name);
- c4_reset(card);
- return retval;
- }
- }
- c4_send_init(card);
- return 0;
- }
- void c4_reset_ctr(struct capi_ctr *ctrl)
- {
- avmcard *card = ((avmctrl_info *)(ctrl->driverdata))->card;
- avmctrl_info *cinfo;
- int i;
- c4_reset(card);
- for (i=0; i < 4; i++) {
- cinfo = &card->ctrlinfo[i];
- memset(cinfo->version, 0, sizeof(cinfo->version));
- if (cinfo->capi_ctrl)
- cinfo->capi_ctrl->reseted(cinfo->capi_ctrl);
- }
- card->nlogcontr = 0;
- }
- static void c4_remove_ctr(struct capi_ctr *ctrl)
- {
- avmcard *card = ((avmctrl_info *)(ctrl->driverdata))->card;
- avmctrl_info *cinfo;
- int i;
- c4_reset(card);
- for (i=0; i < 4; i++) {
- cinfo = &card->ctrlinfo[i];
- if (cinfo->capi_ctrl) {
- di->detach_ctr(cinfo->capi_ctrl);
- cinfo->capi_ctrl = NULL;
- }
- }
- free_irq(card->irq, card);
- iounmap(card->mbase);
- release_region(card->port, AVMB1_PORTLEN);
- ctrl->driverdata = 0;
- kfree(card->ctrlinfo);
- kfree(card->dma);
- kfree(card);
- MOD_DEC_USE_COUNT;
- }
- /* ------------------------------------------------------------- */
- void c4_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 (ctrl->cnr == card->cardnr) {
- if (want > 0) nconn = want;
- else nconn = ctrl->profile.nbchannel * 4 * -want;
- if (nconn == 0) nconn = ctrl->profile.nbchannel * 4;
- 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);
- c4_dispatch_tx(card);
- }
- ctrl->appl_registered(ctrl, appl);
- }
- /* ------------------------------------------------------------- */
- void c4_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;
- if (ctrl->cnr == card->cardnr) {
- 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);
- c4_dispatch_tx(card);
- }
- }
- /* ------------------------------------------------------------- */
- static void c4_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);
- c4_dispatch_tx(card);
- }
- /* ------------------------------------------------------------- */
- static char *c4_procinfo(struct capi_ctr *ctrl)
- {
- avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
- if (!cinfo)
- return "";
- sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx",
- 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->membase : 0
- );
- return cinfo->infobuf;
- }
- static int c4_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;
- __u8 flag;
- int len = 0;
- char *s;
- 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);
- if (off+count >= len)
- *eof = 1;
- if (len < off)
- return 0;
- *start = page + off;
- return ((count < len-off) ? count : len-off);
- }
- /* ------------------------------------------------------------- */
- static int c4_add_card(struct capi_driver *driver,
- struct capicardparams *p,
- int nr)
- {
- avmctrl_info *cinfo;
- avmcard *card;
- int retval;
- int i;
- MOD_INC_USE_COUNT;
- card = (avmcard *) kmalloc(sizeof(avmcard), GFP_ATOMIC);
- if (!card) {
- printk(KERN_WARNING "%s: no memory.n", driver->name);
- MOD_DEC_USE_COUNT;
- return -ENOMEM;
- }
- memset(card, 0, sizeof(avmcard));
- card->dma = (avmcard_dmainfo *) kmalloc(sizeof(avmcard_dmainfo), GFP_ATOMIC);
- if (!card->dma) {
- printk(KERN_WARNING "%s: no memory.n", driver->name);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -ENOMEM;
- }
- memset(card->dma, 0, sizeof(avmcard_dmainfo));
- cinfo = (avmctrl_info *) kmalloc(sizeof(avmctrl_info)*4, GFP_ATOMIC);
- if (!cinfo) {
- printk(KERN_WARNING "%s: no memory.n", driver->name);
- kfree(card->dma);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -ENOMEM;
- }
- memset(cinfo, 0, sizeof(avmctrl_info)*4);
- card->ctrlinfo = cinfo;
- for (i=0; i < 4; i++) {
- cinfo = &card->ctrlinfo[i];
- cinfo->card = card;
- }
- sprintf(card->name, "%s-%x", driver->name, p->port);
- card->port = p->port;
- card->irq = p->irq;
- card->membase = p->membase;
- card->cardtype = nr == 4 ? avm_c4 : avm_c2;
- if (check_region(card->port, AVMB1_PORTLEN)) {
- printk(KERN_WARNING
- "%s: ports 0x%03x-0x%03x in use.n",
- driver->name, card->port, card->port + AVMB1_PORTLEN);
- kfree(card->ctrlinfo);
- kfree(card->dma);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -EBUSY;
- }
- card->mbase = ioremap_nocache(card->membase, 128);
- if (card->mbase == 0) {
- printk(KERN_NOTICE "%s: can't remap memory at 0x%lxn",
- driver->name, card->membase);
- kfree(card->ctrlinfo);
- kfree(card->dma);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -EIO;
- }
- if ((retval = c4_detect(card)) != 0) {
- printk(KERN_NOTICE "%s: NO card at 0x%x (%d)n",
- driver->name, card->port, retval);
- iounmap(card->mbase);
- kfree(card->ctrlinfo);
- kfree(card->dma);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -EIO;
- }
- c4_reset(card);
- request_region(p->port, AVMB1_PORTLEN, card->name);
- retval = request_irq(card->irq, c4_interrupt, SA_SHIRQ, card->name, card);
- if (retval) {
- printk(KERN_ERR "%s: unable to get IRQ %d.n",
- driver->name, card->irq);
- iounmap(card->mbase);
- release_region(card->port, AVMB1_PORTLEN);
- kfree(card->ctrlinfo);
- kfree(card->dma);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -EBUSY;
- }
- for (i=0; i < nr ; i++) {
- cinfo = &card->ctrlinfo[i];
- cinfo->card = card;
- cinfo->capi_ctrl = di->attach_ctr(driver, card->name, cinfo);
- if (!cinfo->capi_ctrl) {
- printk(KERN_ERR "%s: attach controller failed (%d).n",
- driver->name, i);
- for (i--; i >= 0; i--) {
- cinfo = &card->ctrlinfo[i];
- di->detach_ctr(cinfo->capi_ctrl);
- }
- iounmap(card->mbase);
- free_irq(card->irq, card);
- release_region(card->port, AVMB1_PORTLEN);
- kfree(card->dma);
- kfree(card->ctrlinfo);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -EBUSY;
- }
- if (i == 0)
- card->cardnr = cinfo->capi_ctrl->cnr;
- }
- skb_queue_head_init(&card->dma->send_queue);
- printk(KERN_INFO
- "%s: AVM C%d at i/o %#x, irq %d, mem %#lxn",
- driver->name, nr, card->port, card->irq, card->membase);
- return 0;
- }
- /* ------------------------------------------------------------- */
- static struct capi_driver c2_driver = {
- name: "c2",
- revision: "0.0",
- load_firmware: c4_load_firmware,
- reset_ctr: c4_reset_ctr,
- remove_ctr: c4_remove_ctr,
- register_appl: c4_register_appl,
- release_appl: c4_release_appl,
- send_message: c4_send_message,
- procinfo: c4_procinfo,
- ctr_read_proc: c4_read_proc,
- driver_read_proc: 0, /* use standard driver_read_proc */
- add_card: 0, /* no add_card function */
- };
- static struct capi_driver c4_driver = {
- name: "c4",
- revision: "0.0",
- load_firmware: c4_load_firmware,
- reset_ctr: c4_reset_ctr,
- remove_ctr: c4_remove_ctr,
- register_appl: c4_register_appl,
- release_appl: c4_release_appl,
- send_message: c4_send_message,
- procinfo: c4_procinfo,
- ctr_read_proc: c4_read_proc,
- driver_read_proc: 0, /* use standard driver_read_proc */
- add_card: 0, /* no add_card function */
- };
- static int ncards = 0;
- static int c4_attach_driver (struct capi_driver * driver)
- {
- char *p;
- if ((p = strchr(revision, ':')) != 0 && p[1]) {
- strncpy(driver->revision, p + 2, sizeof(driver->revision));
- driver->revision[sizeof(driver->revision)-1] = 0;
- if ((p = strchr(driver->revision, '$')) != 0 && p > driver->revision)
- *(p-1) = 0;
- }
- printk(KERN_INFO "%s: revision %sn", driver->name, driver->revision);
- di = attach_capi_driver(driver);
- if (!di) {
- printk(KERN_ERR "%s: failed to attach capi_drivern",
- driver->name);
- MOD_DEC_USE_COUNT;
- return -ENODEV;
- }
- return 0;
- }
- static int __init search_cards(struct capi_driver * driver,
- int pci_id, int nr)
- {
- struct pci_dev * dev = NULL;
- int retval = 0;
- while ((dev = pci_find_subsys(
- PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285,
- PCI_VENDOR_ID_AVM, pci_id, dev))) {
- struct capicardparams param;
- if (pci_enable_device(dev) < 0) {
- printk(KERN_ERR "%s: failed to enable AVM-C%dn",
- driver->name, nr);
- continue;
- }
- pci_set_master(dev);
- param.port = pci_resource_start(dev, 1);
- param.irq = dev->irq;
- param.membase = pci_resource_start(dev, 0);
-
- printk(KERN_INFO
- "%s: PCI BIOS reports AVM-C%d at i/o %#x, irq %d, mem %#xn",
- driver->name, nr, param.port, param.irq, param.membase);
- retval = c4_add_card(driver, ¶m, nr);
- if (retval != 0) {
- printk(KERN_ERR
- "%s: no AVM-C%d at i/o %#x, irq %d detected, mem %#xn",
- driver->name, nr, param.port, param.irq, param.membase);
- continue;
- }
- ncards++;
- }
- return retval;
- }
- static int __init c4_init(void)
- {
- int retval;
- MOD_INC_USE_COUNT;
- retval = c4_attach_driver (&c4_driver);
- if (retval) {
- MOD_DEC_USE_COUNT;
- return retval;
- }
- retval = c4_attach_driver (&c2_driver);
- if (retval) {
- MOD_DEC_USE_COUNT;
- return retval;
- }
- retval = search_cards(&c4_driver, PCI_DEVICE_ID_AVM_C4, 4);
- if (retval && ncards == 0) {
- detach_capi_driver(&c2_driver);
- detach_capi_driver(&c4_driver);
- MOD_DEC_USE_COUNT;
- return retval;
- }
- retval = search_cards(&c2_driver, PCI_DEVICE_ID_AVM_C2, 2);
- if (retval && ncards == 0) {
- detach_capi_driver(&c2_driver);
- detach_capi_driver(&c4_driver);
- MOD_DEC_USE_COUNT;
- return retval;
- }
- if (ncards) {
- printk(KERN_INFO "%s: %d C4/C2 card(s) detectedn",
- c4_driver.name, ncards);
- MOD_DEC_USE_COUNT;
- return 0;
- }
- printk(KERN_ERR "%s: NO C4/C2 card detectedn", c4_driver.name);
- detach_capi_driver(&c4_driver);
- detach_capi_driver(&c2_driver);
- MOD_DEC_USE_COUNT;
- return -ENODEV;
- }
- static void __exit c4_exit(void)
- {
- detach_capi_driver(&c2_driver);
- detach_capi_driver(&c4_driver);
- }
- module_init(c4_init);
- module_exit(c4_exit);