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path: root/drivers/isdn/hardware/avm/t1isa.c
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Diffstat (limited to 'drivers/isdn/hardware/avm/t1isa.c')
-rw-r--r--drivers/isdn/hardware/avm/t1isa.c594
1 files changed, 594 insertions, 0 deletions
diff --git a/drivers/isdn/hardware/avm/t1isa.c b/drivers/isdn/hardware/avm/t1isa.c
new file mode 100644
index 000000000..72ef18853
--- /dev/null
+++ b/drivers/isdn/hardware/avm/t1isa.c
@@ -0,0 +1,594 @@
+/* $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 <linux/gfp.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)
+{
+ 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);
+ if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
+ spin_unlock_irqrestore(&card->lock, flags);
+ 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));
+ spin_unlock_irqrestore(&card->lock, flags);
+ 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);
+ capilib_new_ncci(&cinfo->ncci_head, ApplId, NCCI, WindowSize);
+ spin_unlock_irqrestore(&card->lock, flags);
+ break;
+
+ case RECEIVE_FREE_NCCI:
+
+ ApplId = b1_get_word(card->port);
+ NCCI = b1_get_word(card->port);
+ if (NCCI != 0xffffffff)
+ capilib_free_ncci(&cinfo->ncci_head, ApplId, NCCI);
+ spin_unlock_irqrestore(&card->lock, flags);
+ 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;
+}
+
+static void t1isa_reset_ctr(struct capi_ctr *ctrl)
+{
+ avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
+ avmcard *card = cinfo->card;
+ unsigned int port = card->port;
+ unsigned long flags;
+
+ t1_disable_irq(port);
+ b1_reset(port);
+ b1_reset(port);
+
+ memset(cinfo->version, 0, sizeof(cinfo->version));
+ spin_lock_irqsave(&card->lock, flags);
+ capilib_release(&cinfo->ncci_head);
+ spin_unlock_irqrestore(&card->lock, flags);
+ capi_ctr_down(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.proc_fops = &b1ctl_proc_fops;
+ 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;
+
+ 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);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-16 05:26:40 +0000