diff options
Diffstat (limited to 'drivers/isdn/avmb1/b1.c')
| -rw-r--r-- | drivers/isdn/avmb1/b1.c | 693 |
1 files changed, 693 insertions, 0 deletions
diff --git a/drivers/isdn/avmb1/b1.c b/drivers/isdn/avmb1/b1.c new file mode 100644 index 000000000..c4dffdacb --- /dev/null +++ b/drivers/isdn/avmb1/b1.c @@ -0,0 +1,693 @@ +/* + * $Id: b1.c,v 1.8 1999/08/22 20:26:22 calle Exp $ + * + * Common module for AVM B1 cards. + * + * (c) Copyright 1999 by Carsten Paeth (calle@calle.in-berlin.de) + * + * $Log: b1.c,v $ + * Revision 1.8 1999/08/22 20:26:22 calle + * backported changes from kernel 2.3.14: + * - several #include "config.h" gone, others come. + * - "struct device" changed to "struct net_device" in 2.3.14, added a + * define in isdn_compat.h for older kernel versions. + * + * Revision 1.7 1999/08/04 10:10:09 calle + * Bugfix: corrected /proc functions, added structure for new AVM cards. + * + * Revision 1.6 1999/07/23 08:51:04 calle + * small fix and typo in checkin before. + * + * Revision 1.5 1999/07/23 08:41:48 calle + * prepared for new AVM cards. + * + * Revision 1.4 1999/07/09 15:05:38 keil + * compat.h is now isdn_compat.h + * + * Revision 1.3 1999/07/06 07:41:59 calle + * - changes in /proc interface + * - check and changed calls to [dev_]kfree_skb and [dev_]alloc_skb. + * + * Revision 1.2 1999/07/05 15:09:47 calle + * - renamed "appl_release" to "appl_released". + * - version und profile data now cleared on controller reset + * - extended /proc interface, to allow driver and controller specific + * informations to include by driver hackers. + * + * Revision 1.1 1999/07/01 15:26:23 calle + * complete new version (I love it): + * + new hardware independed "capi_driver" interface that will make it easy to: + * - support other controllers with CAPI-2.0 (i.e. USB Controller) + * - write a CAPI-2.0 for the passive cards + * - support serial link CAPI-2.0 boxes. + * + wrote "capi_driver" for all supported cards. + * + "capi_driver" (supported cards) now have to be configured with + * make menuconfig, in the past all supported cards where included + * at once. + * + new and better informations in /proc/capi/ + * + new ioctl to switch trace of capi messages per controller + * using "avmcapictrl trace [contr] on|off|...." + * + complete testcircle with all supported cards and also the + * PCMCIA cards (now patch for pcmcia-cs-3.0.13 needed) done. + * + * + */ + +#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 <asm/io.h> +#include <linux/isdn_compat.h> +#include "capilli.h" +#include "avmcard.h" +#include "capicmd.h" +#include "capiutil.h" + +static char *revision = "$Revision: 1.8 $"; + +/* ------------------------------------------------------------- */ + +MODULE_AUTHOR("Carsten Paeth <calle@calle.in-berlin.de>"); + +/* ------------------------------------------------------------- */ + +int b1_irq_table[16] = +{0, + 0, + 0, + 192, /* irq 3 */ + 32, /* irq 4 */ + 160, /* irq 5 */ + 96, /* irq 6 */ + 224, /* irq 7 */ + 0, + 64, /* irq 9 */ + 80, /* irq 10 */ + 208, /* irq 11 */ + 48, /* irq 12 */ + 0, + 0, + 112, /* irq 15 */ +}; + +/* ------------------------------------------------------------- */ + +int b1_detect(unsigned int base, enum avmcardtype cardtype) +{ + int onoff, i; + + /* + * Statusregister 0000 00xx + */ + if ((inb(base + B1_INSTAT) & 0xfc) + || (inb(base + B1_OUTSTAT) & 0xfc)) + return 1; + /* + * Statusregister 0000 001x + */ + b1outp(base, B1_INSTAT, 0x2); /* enable irq */ + /* b1outp(base, B1_OUTSTAT, 0x2); */ + if ((inb(base + B1_INSTAT) & 0xfe) != 0x2 + /* || (inb(base + B1_OUTSTAT) & 0xfe) != 0x2 */) + return 2; + /* + * Statusregister 0000 000x + */ + b1outp(base, B1_INSTAT, 0x0); /* disable irq */ + b1outp(base, B1_OUTSTAT, 0x0); + if ((inb(base + B1_INSTAT) & 0xfe) + || (inb(base + B1_OUTSTAT) & 0xfe)) + return 3; + + for (onoff = !0, i= 0; i < 10 ; i++) { + b1_set_test_bit(base, cardtype, onoff); + if (b1_get_test_bit(base, cardtype) != onoff) + return 4; + onoff = !onoff; + } + + if (cardtype == avm_m1) + return 0; + + if ((b1_rd_reg(base, B1_STAT1(cardtype)) & 0x0f) != 0x01) + return 5; + + return 0; +} + +int b1_load_t4file(unsigned int base, capiloaddatapart * t4file) +{ + unsigned char buf[256]; + unsigned char *dp; + int i, left, retval; + + dp = t4file->data; + left = t4file->len; + while (left > sizeof(buf)) { + if (t4file->user) { + retval = copy_from_user(buf, dp, sizeof(buf)); + if (retval) + return -EFAULT; + } else { + memcpy(buf, dp, sizeof(buf)); + } + for (i = 0; i < sizeof(buf); i++) + if (b1_save_put_byte(base, buf[i]) < 0) { + printk(KERN_ERR "b1_load_t4file: corrupted t4 file ?\n"); + return -EIO; + } + left -= sizeof(buf); + dp += sizeof(buf); + } + if (left) { + if (t4file->user) { + retval = copy_from_user(buf, dp, left); + if (retval) + return -EFAULT; + } else { + memcpy(buf, dp, left); + } + for (i = 0; i < left; i++) + if (b1_save_put_byte(base, buf[i]) < 0) { + printk(KERN_ERR "b1_load_t4file: corrupted t4 file ?\n"); + return -EIO; + } + } + return 0; +} + +int b1_load_config(unsigned int base, capiloaddatapart * config) +{ + unsigned char buf[256]; + unsigned char *dp; + int i, j, left, retval; + + dp = config->data; + left = config->len; + if (left) { + b1_put_byte(base, SEND_CONFIG); + b1_put_word(base, 1); + b1_put_byte(base, SEND_CONFIG); + b1_put_word(base, left); + } + while (left > sizeof(buf)) { + if (config->user) { + retval = copy_from_user(buf, dp, sizeof(buf)); + if (retval) + return -EFAULT; + } else { + memcpy(buf, dp, sizeof(buf)); + } + for (i = 0; i < sizeof(buf); ) { + b1_put_byte(base, SEND_CONFIG); + for (j=0; j < 4; j++) { + b1_put_byte(base, buf[i++]); + } + } + left -= sizeof(buf); + dp += sizeof(buf); + } + if (left) { + if (config->user) { + retval = copy_from_user(buf, dp, left); + if (retval) + return -EFAULT; + } else { + memcpy(buf, dp, left); + } + for (i = 0; i < left; ) { + b1_put_byte(base, SEND_CONFIG); + for (j=0; j < 4; j++) { + if (i < left) + b1_put_byte(base, buf[i++]); + else + b1_put_byte(base, 0); + } + } + } + return 0; +} + +int b1_loaded(unsigned int base) +{ + unsigned long stop; + unsigned char ans; + unsigned long tout = 2; + + for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) { + if (b1_tx_empty(base)) + break; + } + if (!b1_tx_empty(base)) { + printk(KERN_ERR "b1_loaded: tx err, corrupted t4 file ?\n"); + return 0; + } + b1_put_byte(base, SEND_POLL); + for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) { + if (b1_rx_full(base)) { + if ((ans = b1_get_byte(base)) == RECEIVE_POLL) { + return 1; + } + printk(KERN_ERR "b1_loaded: got 0x%x, firmware not running\n", ans); + return 0; + } + } + printk(KERN_ERR "b1_loaded: firmware not running\n"); + return 0; +} + +/* ------------------------------------------------------------- */ + +int b1_load_firmware(struct capi_ctr *ctrl, capiloaddata *data) +{ + avmcard *card = (avmcard *)(ctrl->driverdata); + unsigned int port = card->port; + unsigned long flags; + int retval; + + b1_reset(port); + + if ((retval = b1_load_t4file(port, &data->firmware))) { + b1_reset(port); + printk(KERN_ERR "%s: failed to load t4file!!\n", + card->name); + return retval; + } + + b1_disable_irq(port); + + if (data->configuration.len > 0 && data->configuration.data) { + if ((retval = b1_load_config(port, &data->configuration))) { + b1_reset(port); + printk(KERN_ERR "%s: failed to load config!!\n", + card->name); + return retval; + } + } + + if (!b1_loaded(port)) { + printk(KERN_ERR "%s: failed to load t4file.\n", card->name); + return -EIO; + } + + save_flags(flags); + cli(); + b1_setinterrupt(port, card->irq, card->cardtype); + b1_put_byte(port, SEND_INIT); + b1_put_word(port, AVM_NAPPS); + b1_put_word(port, AVM_NCCI_PER_CHANNEL*2); + b1_put_word(port, ctrl->cnr - 1); + restore_flags(flags); + + return 0; +} + +void b1_reset_ctr(struct capi_ctr *ctrl) +{ + avmcard *card = (avmcard *)(ctrl->driverdata); + unsigned int port = card->port; + + b1_reset(port); + b1_reset(port); + + memset(card->version, 0, sizeof(card->version)); + ctrl->reseted(ctrl); +} + +void b1_register_appl(struct capi_ctr *ctrl, + __u16 appl, + capi_register_params *rp) +{ + avmcard *card = (avmcard *)(ctrl->driverdata); + unsigned int port = card->port; + unsigned long flags; + int nconn, want = rp->level3cnt; + + if (want > 0) nconn = want; + else nconn = ctrl->profile.nbchannel * -want; + if (nconn == 0) nconn = ctrl->profile.nbchannel; + + save_flags(flags); + cli(); + b1_put_byte(port, SEND_REGISTER); + b1_put_word(port, appl); + b1_put_word(port, 1024 * (nconn+1)); + b1_put_word(port, nconn); + b1_put_word(port, rp->datablkcnt); + b1_put_word(port, rp->datablklen); + restore_flags(flags); + + ctrl->appl_registered(ctrl, appl); +} + +void b1_release_appl(struct capi_ctr *ctrl, __u16 appl) +{ + avmcard *card = (avmcard *)(ctrl->driverdata); + unsigned int port = card->port; + unsigned long flags; + + save_flags(flags); + cli(); + b1_put_byte(port, SEND_RELEASE); + b1_put_word(port, appl); + restore_flags(flags); +} + +void b1_send_message(struct capi_ctr *ctrl, struct sk_buff *skb) +{ + avmcard *card = (avmcard *)(ctrl->driverdata); + unsigned int port = card->port; + unsigned long flags; + __u16 len = CAPIMSG_LEN(skb->data); + __u8 cmd = CAPIMSG_COMMAND(skb->data); + __u8 subcmd = CAPIMSG_SUBCOMMAND(skb->data); + + save_flags(flags); + cli(); + if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) { + __u16 dlen = CAPIMSG_DATALEN(skb->data); + b1_put_byte(port, SEND_DATA_B3_REQ); + b1_put_slice(port, skb->data, len); + b1_put_slice(port, skb->data + len, dlen); + } else { + b1_put_byte(port, SEND_MESSAGE); + b1_put_slice(port, skb->data, len); + } + restore_flags(flags); + dev_kfree_skb(skb); +} + +/* ------------------------------------------------------------- */ + +void b1_parse_version(avmcard *card) +{ + struct capi_ctr *ctrl = card->ctrl; + capi_profile *profp; + __u8 *dversion; + __u8 flag; + int i, j; + + for (j = 0; j < AVM_MAXVERSION; j++) + card->version[j] = "\0\0" + 1; + for (i = 0, j = 0; + j < AVM_MAXVERSION && i < card->versionlen; + j++, i += card->versionbuf[i] + 1) + card->version[j] = &card->versionbuf[i + 1]; + + strncpy(ctrl->serial, card->version[VER_SERIAL], CAPI_SERIAL_LEN); + memcpy(&ctrl->profile, card->version[VER_PROFILE],sizeof(capi_profile)); + strncpy(ctrl->manu, "AVM GmbH", CAPI_MANUFACTURER_LEN); + dversion = card->version[VER_DRIVER]; + ctrl->version.majorversion = 2; + ctrl->version.minorversion = 0; + ctrl->version.majormanuversion = (((dversion[0] - '0') & 0xf) << 4); + ctrl->version.majormanuversion |= ((dversion[2] - '0') & 0xf); + ctrl->version.minormanuversion = (dversion[3] - '0') << 4; + ctrl->version.minormanuversion |= + (dversion[5] - '0') * 10 + ((dversion[6] - '0') & 0xf); + + profp = &ctrl->profile; + + flag = ((__u8 *)(profp->manu))[1]; + switch (flag) { + case 0: if (card->version[VER_CARDTYPE]) + strcpy(card->cardname, card->version[VER_CARDTYPE]); + else strcpy(card->cardname, "B1"); + break; + case 3: strcpy(card->cardname,"PCMCIA B"); break; + case 4: strcpy(card->cardname,"PCMCIA M1"); break; + case 5: strcpy(card->cardname,"PCMCIA M2"); break; + case 6: strcpy(card->cardname,"B1 V3.0"); break; + case 7: strcpy(card->cardname,"B1 PCI"); break; + default: sprintf(card->cardname, "AVM?%u", (unsigned int)flag); break; + } + printk(KERN_NOTICE "%s: card %d \"%s\" ready.\n", + card->name, ctrl->cnr, card->cardname); + + flag = ((__u8 *)(profp->manu))[3]; + if (flag) + printk(KERN_NOTICE "b1capi: card %d Protocol:%s%s%s%s%s%s%s\n", + ctrl->cnr, + (flag & 0x01) ? " DSS1" : "", + (flag & 0x02) ? " CT1" : "", + (flag & 0x04) ? " VN3" : "", + (flag & 0x08) ? " NI1" : "", + (flag & 0x10) ? " AUSTEL" : "", + (flag & 0x20) ? " ESS" : "", + (flag & 0x40) ? " 1TR6" : "" + ); + + flag = ((__u8 *)(profp->manu))[5]; + if (flag) + printk(KERN_NOTICE "%s: card %d Linetype:%s%s%s%s\n", + card->name, + ctrl->cnr, + (flag & 0x01) ? " point to point" : "", + (flag & 0x02) ? " point to multipoint" : "", + (flag & 0x08) ? " leased line without D-channel" : "", + (flag & 0x04) ? " leased line with D-channel" : "" + ); +} + +/* ------------------------------------------------------------- */ + +void b1_handle_interrupt(avmcard * card) +{ + struct capi_ctr *ctrl = card->ctrl; + unsigned char b1cmd; + struct sk_buff *skb; + + unsigned ApplId; + unsigned MsgLen; + unsigned DataB3Len; + unsigned NCCI; + unsigned WindowSize; + + if (!b1_rx_full(card->port)) + return; + + b1cmd = b1_get_byte(card->port); + + switch (b1cmd) { + + case RECEIVE_DATA_B3_IND: + + ApplId = (unsigned) b1_get_word(card->port); + MsgLen = b1_get_slice(card->port, card->msgbuf); + DataB3Len = b1_get_slice(card->port, card->databuf); + + if (!(skb = alloc_skb(DataB3Len + MsgLen, GFP_ATOMIC))) { + printk(KERN_ERR "%s: incoming packet dropped\n", + card->name); + } else { + memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen); + memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len); + CAPIMSG_SETDATA(skb->data, skb->data + MsgLen); + ctrl->handle_capimsg(ctrl, ApplId, skb); + } + break; + + case RECEIVE_MESSAGE: + + ApplId = (unsigned) b1_get_word(card->port); + MsgLen = b1_get_slice(card->port, card->msgbuf); + if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) { + printk(KERN_ERR "%s: incoming packet dropped\n", + card->name); + } else { + memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen); + ctrl->handle_capimsg(ctrl, ApplId, skb); + } + break; + + case RECEIVE_NEW_NCCI: + + ApplId = b1_get_word(card->port); + NCCI = b1_get_word(card->port); + WindowSize = b1_get_word(card->port); + + ctrl->new_ncci(ctrl, ApplId, NCCI, WindowSize); + + break; + + case RECEIVE_FREE_NCCI: + + ApplId = b1_get_word(card->port); + NCCI = b1_get_word(card->port); + + if (NCCI != 0xffffffff) + ctrl->free_ncci(ctrl, ApplId, NCCI); + else ctrl->appl_released(ctrl, ApplId); + break; + + case RECEIVE_START: + /* b1_put_byte(card->port, SEND_POLLACK); */ + ctrl->resume_output(ctrl); + break; + + case RECEIVE_STOP: + ctrl->suspend_output(ctrl); + break; + + case RECEIVE_INIT: + + card->versionlen = b1_get_slice(card->port, card->versionbuf); + b1_parse_version(card); + printk(KERN_INFO "%s: %s-card (%s) now active\n", + card->name, + card->version[VER_CARDTYPE], + card->version[VER_DRIVER]); + ctrl->ready(ctrl); + break; + + case RECEIVE_TASK_READY: + ApplId = (unsigned) b1_get_word(card->port); + MsgLen = b1_get_slice(card->port, card->msgbuf); + card->msgbuf[MsgLen--] = 0; + while ( MsgLen >= 0 + && ( card->msgbuf[MsgLen] == '\n' + || card->msgbuf[MsgLen] == '\r')) + card->msgbuf[MsgLen--] = 0; + printk(KERN_INFO "%s: task %d \"%s\" ready.\n", + card->name, ApplId, card->msgbuf); + break; + + case RECEIVE_DEBUGMSG: + MsgLen = b1_get_slice(card->port, card->msgbuf); + card->msgbuf[MsgLen--] = 0; + while ( MsgLen >= 0 + && ( card->msgbuf[MsgLen] == '\n' + || card->msgbuf[MsgLen] == '\r')) + card->msgbuf[MsgLen--] = 0; + printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf); + break; + + case 0xff: + printk(KERN_ERR "%s: card removed ?\n", card->name); + return; + default: + printk(KERN_ERR "%s: b1_interrupt: 0x%x ???\n", + card->name, b1cmd); + return; + } +} + +/* ------------------------------------------------------------- */ +int b1ctl_read_proc(char *page, char **start, off_t off, + int count, int *eof, struct capi_ctr *ctrl) +{ + avmcard *card = (avmcard *)(ctrl->driverdata); + __u8 flag; + int len = 0; + char *s; + + len += sprintf(page+len, "%-16s %s\n", "name", card->name); + len += sprintf(page+len, "%-16s 0x%x\n", "io", card->port); + len += sprintf(page+len, "%-16s %d\n", "irq", card->irq); + 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; + default: s = "???"; break; + } + len += sprintf(page+len, "%-16s %s\n", "type", s); + if (card->cardtype == avm_t1isa) + len += sprintf(page+len, "%-16s %d\n", "cardnr", card->cardnr); + if ((s = card->version[VER_DRIVER]) != 0) + len += sprintf(page+len, "%-16s %s\n", "ver_driver", s); + if ((s = card->version[VER_CARDTYPE]) != 0) + len += sprintf(page+len, "%-16s %s\n", "ver_cardtype", s); + if ((s = card->version[VER_SERIAL]) != 0) + len += sprintf(page+len, "%-16s %s\n", "ver_serial", s); + + if (card->cardtype != avm_m1) { + flag = ((__u8 *)(ctrl->profile.manu))[3]; + if (flag) + len += sprintf(page+len, "%-16s%s%s%s%s%s%s%s\n", + "protocol", + (flag & 0x01) ? " DSS1" : "", + (flag & 0x02) ? " CT1" : "", + (flag & 0x04) ? " VN3" : "", + (flag & 0x08) ? " NI1" : "", + (flag & 0x10) ? " AUSTEL" : "", + (flag & 0x20) ? " ESS" : "", + (flag & 0x40) ? " 1TR6" : "" + ); + } + if (card->cardtype != avm_m1) { + flag = ((__u8 *)(ctrl->profile.manu))[5]; + if (flag) + len += sprintf(page+len, "%-16s%s%s%s%s\n", + "linetype", + (flag & 0x01) ? " point to point" : "", + (flag & 0x02) ? " point to multipoint" : "", + (flag & 0x08) ? " leased line without D-channel" : "", + (flag & 0x04) ? " leased line with D-channel" : "" + ); + } + len += sprintf(page+len, "%-16s %s\n", "cardname", card->cardname); + + if (off+count >= len) + *eof = 1; + if (len < off) + return 0; + *start = page + off; + return ((count < len-off) ? count : len-off); +} + +/* ------------------------------------------------------------- */ + +EXPORT_SYMBOL(b1_irq_table); + +EXPORT_SYMBOL(b1_detect); +EXPORT_SYMBOL(b1_load_t4file); +EXPORT_SYMBOL(b1_load_config); +EXPORT_SYMBOL(b1_loaded); +EXPORT_SYMBOL(b1_load_firmware); +EXPORT_SYMBOL(b1_reset_ctr); +EXPORT_SYMBOL(b1_register_appl); +EXPORT_SYMBOL(b1_release_appl); +EXPORT_SYMBOL(b1_send_message); + +EXPORT_SYMBOL(b1_parse_version); +EXPORT_SYMBOL(b1_handle_interrupt); + +EXPORT_SYMBOL(b1ctl_read_proc); + +#ifdef MODULE +#define b1_init init_module +void cleanup_module(void); +#endif + +int b1_init(void) +{ + char *p; + char rev[10]; + + if ((p = strchr(revision, ':'))) { + strncpy(rev, p + 1, sizeof(rev)); + p = strchr(rev, '$'); + *p = 0; + } else + strcpy(rev, "1.0"); + + printk(KERN_INFO "b1: revision %s\n", rev); + + return 0; +} + +#ifdef MODULE +void cleanup_module(void) +{ +} +#endif |