1 files changed, 596 insertions, 0 deletions

diff --git a/drivers/isdn/hardware/avm/t1isa.c b/drivers/isdn/hardware/avm/t1isa.c
new file mode 100644
index 000000000000..cb9d9cee2a64
--- /dev/null
+++ b/drivers/isdn/hardware/avm/t1isa.c
@@ -0,0 +1,596 @@
+/* $Id: t1isa.c,v 1.1.2.3 2004/02/10 01:07:12 keil Exp $
+ * 
+ * Module for AVM T1 HEMA-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/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/netdevice.h>
+#include <linux/kernelcapi.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+#include <linux/isdn/capicmd.h>
+#include <linux/isdn/capiutil.h>
+#include <linux/isdn/capilli.h>
+#include "avmcard.h"
+
+/* ------------------------------------------------------------- */
+
+static char *revision = "$Revision: 1.1.2.3 $";
+
+/* ------------------------------------------------------------- */
+
+MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM T1 HEMA ISA card");
+MODULE_AUTHOR("Carsten Paeth");
+MODULE_LICENSE("GPL");
+
+/* ------------------------------------------------------------- */
+
+static int hema_irq_table[16] =
+{0,
+ 0,
+ 0,
+ 0x80,                          /* irq 3 */
+ 0,
+ 0x90,                          /* irq 5 */
+ 0,
+ 0xA0,                          /* irq 7 */
+ 0,
+ 0xB0,                          /* irq 9 */
+ 0xC0,                          /* irq 10 */
+ 0xD0,                          /* irq 11 */
+ 0xE0,                          /* irq 12 */
+ 0,
+ 0,
+ 0xF0,                          /* irq 15 */
+};
+
+static int t1_detectandinit(unsigned int base, unsigned irq, int cardnr)
+{
+        unsigned char cregs[8];
+        unsigned char reverse_cardnr;
+        unsigned char dummy;
+        int i;
+
+        reverse_cardnr =   ((cardnr & 0x01) << 3) | ((cardnr & 0x02) << 1)
+                         | ((cardnr & 0x04) >> 1) | ((cardnr & 0x08) >> 3);
+        cregs[0] = (HEMA_VERSION_ID << 4) | (reverse_cardnr & 0xf);
+        cregs[1] = 0x00; /* fast & slow link connected to CON1 */
+        cregs[2] = 0x05; /* fast link 20MBit, slow link 20 MBit */
+        cregs[3] = 0;
+        cregs[4] = 0x11; /* zero wait state */
+        cregs[5] = hema_irq_table[irq & 0xf];
+        cregs[6] = 0;
+        cregs[7] = 0;
+
+        /*
+         * no one else should use the ISA bus in this moment,
+         * but no function there to prevent this :-(
+         * save_flags(flags); cli();
+         */
+
+        /* board reset */
+        t1outp(base, T1_RESETBOARD, 0xf);
+        mdelay(100);
+        dummy = t1inp(base, T1_FASTLINK+T1_OUTSTAT); /* first read */
+
+        /* write config */
+        dummy = (base >> 4) & 0xff;
+        for (i=1;i<=0xf;i++) t1outp(base, i, dummy);
+        t1outp(base, HEMA_PAL_ID & 0xf, dummy);
+        t1outp(base, HEMA_PAL_ID >> 4, cregs[0]);
+        for(i=1;i<7;i++) t1outp(base, 0, cregs[i]);
+        t1outp(base, ((base >> 4)) & 0x3, cregs[7]);
+        /* restore_flags(flags); */
+
+        mdelay(100);
+        t1outp(base, T1_FASTLINK+T1_RESETLINK, 0);
+        t1outp(base, T1_SLOWLINK+T1_RESETLINK, 0);
+        mdelay(10);
+        t1outp(base, T1_FASTLINK+T1_RESETLINK, 1);
+        t1outp(base, T1_SLOWLINK+T1_RESETLINK, 1);
+        mdelay(100);
+        t1outp(base, T1_FASTLINK+T1_RESETLINK, 0);
+        t1outp(base, T1_SLOWLINK+T1_RESETLINK, 0);
+        mdelay(10);
+        t1outp(base, T1_FASTLINK+T1_ANALYSE, 0);
+        mdelay(5);
+        t1outp(base, T1_SLOWLINK+T1_ANALYSE, 0);
+
+        if (t1inp(base, T1_FASTLINK+T1_OUTSTAT) != 0x1) /* tx empty */
+                return 1;
+        if (t1inp(base, T1_FASTLINK+T1_INSTAT) != 0x0) /* rx empty */
+                return 2;
+        if (t1inp(base, T1_FASTLINK+T1_IRQENABLE) != 0x0)
+                return 3;
+        if ((t1inp(base, T1_FASTLINK+T1_FIFOSTAT) & 0xf0) != 0x70)
+                return 4;
+        if ((t1inp(base, T1_FASTLINK+T1_IRQMASTER) & 0x0e) != 0)
+                return 5;
+        if ((t1inp(base, T1_FASTLINK+T1_IDENT) & 0x7d) != 1)
+                return 6;
+        if (t1inp(base, T1_SLOWLINK+T1_OUTSTAT) != 0x1) /* tx empty */
+                return 7;
+        if ((t1inp(base, T1_SLOWLINK+T1_IRQMASTER) & 0x0e) != 0)
+                return 8;
+        if ((t1inp(base, T1_SLOWLINK+T1_IDENT) & 0x7d) != 0)
+                return 9;
+        return 0;
+}
+
+static irqreturn_t t1isa_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
+{
+        avmcard *card = devptr;
+        avmctrl_info *cinfo = &card->ctrlinfo[0];
+        struct capi_ctr *ctrl = &cinfo->capi_ctrl;
+        unsigned char b1cmd;
+        struct sk_buff *skb;
+
+        unsigned ApplId;
+        unsigned MsgLen;
+        unsigned DataB3Len;
+        unsigned NCCI;
+        unsigned WindowSize;
+        unsigned long flags;
+
+        spin_lock_irqsave(&card->lock, flags);
+
+        while (b1_rx_full(card->port)) {
+
+                b1cmd = b1_get_byte(card->port);
+
+                switch (b1cmd) {
+
+                case RECEIVE_DATA_B3_IND:
+
+                        ApplId = (unsigned) b1_get_word(card->port);
+                        MsgLen = t1_get_slice(card->port, card->msgbuf);
+                        DataB3Len = t1_get_slice(card->port, card->databuf);
+                        spin_unlock_irqrestore(&card->lock, flags);
+
+                        if (MsgLen < 30) { /* not CAPI 64Bit */
+                                memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
+                                MsgLen = 30;
+                                CAPIMSG_SETLEN(card->msgbuf, 30);
+                        }
+                        if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
+                                printk(KERN_ERR "%s: incoming packet dropped\n",
+                                        card->name);
+                        } else {
+                                memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
+                                memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
+                                capi_ctr_handle_message(ctrl, ApplId, skb);
+                        }
+                        break;
+
+                case RECEIVE_MESSAGE:
+
+                        ApplId = (unsigned) b1_get_word(card->port);
+                        MsgLen = t1_get_slice(card->port, card->msgbuf);
+                        spin_unlock_irqrestore(&card->lock, flags);
+                        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);
+                                if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3)
+                                        capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
+                                                             CAPIMSG_NCCI(skb->data),
+                                                             CAPIMSG_MSGID(skb->data));
+
+                                capi_ctr_handle_message(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);
+                        spin_unlock_irqrestore(&card->lock, flags);
+
+                        capilib_new_ncci(&cinfo->ncci_head, ApplId, NCCI, WindowSize);
+
+                        break;
+
+                case RECEIVE_FREE_NCCI:
+
+                        ApplId = b1_get_word(card->port);
+                        NCCI = b1_get_word(card->port);
+                        spin_unlock_irqrestore(&card->lock, flags);
+
+                        if (NCCI != 0xffffffff)
+                                capilib_free_ncci(&cinfo->ncci_head, ApplId, NCCI);
+
+                        break;
+
+                case RECEIVE_START:
+                        b1_put_byte(card->port, SEND_POLLACK);
+                        spin_unlock_irqrestore(&card->lock, flags);
+                        capi_ctr_resume_output(ctrl);
+                        break;
+
+                case RECEIVE_STOP:
+                        spin_unlock_irqrestore(&card->lock, flags);
+                        capi_ctr_suspend_output(ctrl);
+                        break;
+
+                case RECEIVE_INIT:
+
+                        cinfo->versionlen = t1_get_slice(card->port, cinfo->versionbuf);
+                        spin_unlock_irqrestore(&card->lock, flags);
+                        b1_parse_version(cinfo);
+                        printk(KERN_INFO "%s: %s-card (%s) now active\n",
+                               card->name,
+                               cinfo->version[VER_CARDTYPE],
+                               cinfo->version[VER_DRIVER]);
+                        capi_ctr_ready(ctrl);
+                        break;
+
+                case RECEIVE_TASK_READY:
+                        ApplId = (unsigned) b1_get_word(card->port);
+                        MsgLen = t1_get_slice(card->port, card->msgbuf);
+                        spin_unlock_irqrestore(&card->lock, flags);
+                        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 = t1_get_slice(card->port, card->msgbuf);
+                        spin_unlock_irqrestore(&card->lock, flags);
+                        card->msgbuf[MsgLen] = 0;
+                        while (    MsgLen > 0
+                               && (   card->msgbuf[MsgLen-1] == '\n'
+                                   || card->msgbuf[MsgLen-1] == '\r')) {
+                                card->msgbuf[MsgLen-1] = 0;
+                                MsgLen--;
+                        }
+                        printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
+                        break;
+
+
+                case 0xff:
+                        spin_unlock_irqrestore(&card->lock, flags);
+                        printk(KERN_ERR "%s: card reseted ?\n", card->name);
+                        return IRQ_HANDLED;
+                default:
+                        spin_unlock_irqrestore(&card->lock, flags);
+                        printk(KERN_ERR "%s: b1_interrupt: 0x%x ???\n",
+                                        card->name, b1cmd);
+                        return IRQ_NONE;
+                }
+        }
+        return IRQ_HANDLED;
+}
+
+/* ------------------------------------------------------------- */
+
+static int t1isa_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
+{
+        avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
+        avmcard *card = cinfo->card;
+        unsigned int port = card->port;
+        unsigned long flags;
+        int retval;
+
+        t1_disable_irq(port);
+        b1_reset(port);
+
+        if ((retval = b1_load_t4file(card, &data->firmware))) {
+                b1_reset(port);
+                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))) {
+                        b1_reset(port);
+                        printk(KERN_ERR "%s: failed to load config!!\n",
+                                        card->name);
+                        return retval;
+                }
+        }
+
+        if (!b1_loaded(card)) {
+                printk(KERN_ERR "%s: failed to load t4file.\n", card->name);
+                return -EIO;
+        }
+
+        spin_lock_irqsave(&card->lock, flags);
+        b1_setinterrupt(port, card->irq, card->cardtype);
+        b1_put_byte(port, SEND_INIT);
+        b1_put_word(port, CAPI_MAXAPPL);
+        b1_put_word(port, AVM_NCCI_PER_CHANNEL*30);
+        b1_put_word(port, ctrl->cnr - 1);
+        spin_unlock_irqrestore(&card->lock, flags);
+
+        return 0;
+}
+
+void t1isa_reset_ctr(struct capi_ctr *ctrl)
+{
+        avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
+        avmcard *card = cinfo->card;
+        unsigned int port = card->port;
+
+        t1_disable_irq(port);
+        b1_reset(port);
+        b1_reset(port);
+
+        memset(cinfo->version, 0, sizeof(cinfo->version));
+        capilib_release(&cinfo->ncci_head);
+        capi_ctr_reseted(ctrl);
+}
+
+static void t1isa_remove(struct pci_dev *pdev)
+{
+        avmctrl_info *cinfo = pci_get_drvdata(pdev);
+        avmcard *card;
+        
+        if (!cinfo)
+                return;
+
+        card = cinfo->card;
+
+        t1_disable_irq(card->port);
+        b1_reset(card->port);
+        b1_reset(card->port);
+        t1_reset(card->port);
+
+        detach_capi_ctr(&cinfo->capi_ctrl);
+        free_irq(card->irq, card);
+        release_region(card->port, AVMB1_PORTLEN);
+        b1_free_card(card);
+}
+
+/* ------------------------------------------------------------- */
+
+static u16 t1isa_send_message(struct capi_ctr *ctrl, struct sk_buff *skb);
+static char *t1isa_procinfo(struct capi_ctr *ctrl);
+
+static int t1isa_probe(struct pci_dev *pdev, int cardnr)
+{
+        avmctrl_info *cinfo;
+        avmcard *card;
+        int retval;
+
+        card = b1_alloc_card(1);
+        if (!card) {
+                printk(KERN_WARNING "t1isa: no memory.\n");
+                retval = -ENOMEM;
+                goto err;
+        }
+
+        cinfo = card->ctrlinfo;
+        card->port = pci_resource_start(pdev, 0);
+        card->irq = pdev->irq;
+        card->cardtype = avm_t1isa;
+        card->cardnr = cardnr;
+        sprintf(card->name, "t1isa-%x", card->port);
+
+        if (!(((card->port & 0x7) == 0) && ((card->port & 0x30) != 0x30))) {
+                printk(KERN_WARNING "t1isa: invalid port 0x%x.\n", card->port);
+                retval = -EINVAL;
+                goto err_free;
+        }
+        if (hema_irq_table[card->irq & 0xf] == 0) {
+                printk(KERN_WARNING "t1isa: irq %d not valid.\n", card->irq);
+                retval = -EINVAL;
+                goto err_free;
+        }
+        if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
+                printk(KERN_INFO "t1isa: ports 0x%03x-0x%03x in use.\n",
+                       card->port, card->port + AVMB1_PORTLEN);
+                retval = -EBUSY;
+                goto err_free;
+        }
+        retval = request_irq(card->irq, t1isa_interrupt, 0, card->name, card);
+        if (retval) {
+                printk(KERN_INFO "t1isa: unable to get IRQ %d.\n", card->irq);
+                retval = -EBUSY;
+                goto err_release_region;
+        }
+
+        if ((retval = t1_detectandinit(card->port, card->irq, card->cardnr)) != 0) {
+                printk(KERN_INFO "t1isa: NO card at 0x%x (%d)\n",
+                       card->port, retval);
+                retval = -ENODEV;
+                goto err_free_irq;
+        }
+        t1_disable_irq(card->port);
+        b1_reset(card->port);
+
+        cinfo->capi_ctrl.owner = THIS_MODULE;
+        cinfo->capi_ctrl.driver_name   = "t1isa";
+        cinfo->capi_ctrl.driverdata    = cinfo;
+        cinfo->capi_ctrl.register_appl = b1_register_appl;
+        cinfo->capi_ctrl.release_appl  = b1_release_appl;
+        cinfo->capi_ctrl.send_message  = t1isa_send_message;
+        cinfo->capi_ctrl.load_firmware = t1isa_load_firmware;
+        cinfo->capi_ctrl.reset_ctr     = t1isa_reset_ctr;
+        cinfo->capi_ctrl.procinfo      = t1isa_procinfo;
+        cinfo->capi_ctrl.ctr_read_proc = b1ctl_read_proc;
+        strcpy(cinfo->capi_ctrl.name, card->name);
+
+        retval = attach_capi_ctr(&cinfo->capi_ctrl);
+        if (retval) {
+                printk(KERN_INFO "t1isa: attach controller failed.\n");
+                goto err_free_irq;
+        }
+
+        printk(KERN_INFO "t1isa: AVM T1 ISA at i/o %#x, irq %d, card %d\n",
+               card->port, card->irq, card->cardnr);
+
+        pci_set_drvdata(pdev, cinfo);
+        return 0;
+
+ err_free_irq:
+        free_irq(card->irq, card);
+ err_release_region:
+        release_region(card->port, AVMB1_PORTLEN);
+ err_free:
+        b1_free_card(card);
+ err:
+        return retval;
+}
+
+static u16 t1isa_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
+{
+        avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
+        avmcard *card = cinfo->card;
+        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);
+        u16 dlen, retval;
+
+        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) 
+                        return retval;
+
+                dlen = CAPIMSG_DATALEN(skb->data);
+
+                spin_lock_irqsave(&card->lock, flags);
+                b1_put_byte(port, SEND_DATA_B3_REQ);
+                t1_put_slice(port, skb->data, len);
+                t1_put_slice(port, skb->data + len, dlen);
+                spin_unlock_irqrestore(&card->lock, flags);
+        } else {
+
+                spin_lock_irqsave(&card->lock, flags);
+                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_PARM(io, "1-" __MODULE_STRING(MAX_CARDS) "i");
+MODULE_PARM(irq, "1-" __MODULE_STRING(MAX_CARDS) "i");
+MODULE_PARM(cardnr, "1-" __MODULE_STRING(MAX_CARDS) "i");
+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, ':')) != 0 && p[1]) {
+                strlcpy(rev, p + 2, 32);
+                if ((p = strchr(rev, '$')) != 0 && 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;
+
+        for (i = 0; i < MAX_CARDS; i++) {
+                if (!io[i])
+                        break;
+
+                t1isa_remove(&isa_dev[i]);
+        }
+}
+
+module_init(t1isa_init);
+module_exit(t1isa_exit);