--- /dev/null
+/*
+ * Driver for AVM Fritz!PCI, Fritz!PCI v2, Fritz!PnP ISDN cards
+ *
+ * Author Kai Germaschewski
+ * Copyright 2001 by Kai Germaschewski <kai.germaschewski@gmx.de>
+ * 2001 by Karsten Keil <keil@isdn4linux.de>
+ *
+ * based upon Karsten Keil's original avm_pci.c driver
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ * Thanks to Wizard Computersysteme GmbH, Bremervoerde and
+ * SoHaNet Technology GmbH, Berlin
+ * for supporting the development of this driver
+ */
+
+
+/* TODO:
+ *
+ * o POWER PC
+ * o clean up debugging
+ * o tx_skb at PH_DEACTIVATE time
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/isapnp.h>
+#include <linux/kmod.h>
+#include <linux/slab.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/delay.h>
+
+#include <asm/io.h>
+
+#include "hisax_fcpcipnp.h"
+
+// debugging cruft
+#define __debug_variable debug
+#include "hisax_debug.h"
+
+#ifdef CONFIG_HISAX_DEBUG
+static int debug = 0;
+/* static int hdlcfifosize = 32; */
+module_param(debug, int, 0);
+/* module_param(hdlcfifosize, int, 0); */
+#endif
+
+MODULE_AUTHOR("Kai Germaschewski <kai.germaschewski@gmx.de>/Karsten Keil <kkeil@suse.de>");
+MODULE_DESCRIPTION("AVM Fritz!PCI/PnP ISDN driver");
+
+static struct pci_device_id fcpci_ids[] = {
+ { .vendor = PCI_VENDOR_ID_AVM,
+ .device = PCI_DEVICE_ID_AVM_A1,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = (unsigned long) "Fritz!Card PCI",
+ },
+ { .vendor = PCI_VENDOR_ID_AVM,
+ .device = PCI_DEVICE_ID_AVM_A1_V2,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = (unsigned long) "Fritz!Card PCI v2" },
+ {}
+};
+
+MODULE_DEVICE_TABLE(pci, fcpci_ids);
+
+#ifdef CONFIG_PNP
+static struct pnp_device_id fcpnp_ids[] = {
+ {
+ .id = "AVM0900",
+ .driver_data = (unsigned long) "Fritz!Card PnP",
+ },
+ { .id = "" }
+};
+
+MODULE_DEVICE_TABLE(pnp, fcpnp_ids);
+#endif
+
+static int protocol = 2; /* EURO-ISDN Default */
+module_param(protocol, int, 0);
+MODULE_LICENSE("GPL");
+
+// ----------------------------------------------------------------------
+
+#define AVM_INDEX 0x04
+#define AVM_DATA 0x10
+
+#define AVM_IDX_HDLC_1 0x00
+#define AVM_IDX_HDLC_2 0x01
+#define AVM_IDX_ISAC_FIFO 0x02
+#define AVM_IDX_ISAC_REG_LOW 0x04
+#define AVM_IDX_ISAC_REG_HIGH 0x06
+
+#define AVM_STATUS0 0x02
+
+#define AVM_STATUS0_IRQ_ISAC 0x01
+#define AVM_STATUS0_IRQ_HDLC 0x02
+#define AVM_STATUS0_IRQ_TIMER 0x04
+#define AVM_STATUS0_IRQ_MASK 0x07
+
+#define AVM_STATUS0_RESET 0x01
+#define AVM_STATUS0_DIS_TIMER 0x02
+#define AVM_STATUS0_RES_TIMER 0x04
+#define AVM_STATUS0_ENA_IRQ 0x08
+#define AVM_STATUS0_TESTBIT 0x10
+
+#define AVM_STATUS1 0x03
+#define AVM_STATUS1_ENA_IOM 0x80
+
+#define HDLC_FIFO 0x0
+#define HDLC_STATUS 0x4
+#define HDLC_CTRL 0x4
+
+#define HDLC_MODE_ITF_FLG 0x01
+#define HDLC_MODE_TRANS 0x02
+#define HDLC_MODE_CCR_7 0x04
+#define HDLC_MODE_CCR_16 0x08
+#define HDLC_MODE_TESTLOOP 0x80
+
+#define HDLC_INT_XPR 0x80
+#define HDLC_INT_XDU 0x40
+#define HDLC_INT_RPR 0x20
+#define HDLC_INT_MASK 0xE0
+
+#define HDLC_STAT_RME 0x01
+#define HDLC_STAT_RDO 0x10
+#define HDLC_STAT_CRCVFRRAB 0x0E
+#define HDLC_STAT_CRCVFR 0x06
+#define HDLC_STAT_RML_MASK 0xff00
+
+#define HDLC_CMD_XRS 0x80
+#define HDLC_CMD_XME 0x01
+#define HDLC_CMD_RRS 0x20
+#define HDLC_CMD_XML_MASK 0xff00
+
+#define AVM_HDLC_FIFO_1 0x10
+#define AVM_HDLC_FIFO_2 0x18
+
+#define AVM_HDLC_STATUS_1 0x14
+#define AVM_HDLC_STATUS_2 0x1c
+
+#define AVM_ISACSX_INDEX 0x04
+#define AVM_ISACSX_DATA 0x08
+
+// ----------------------------------------------------------------------
+// Fritz!PCI
+
+static unsigned char fcpci_read_isac(struct isac *isac, unsigned char offset)
+{
+ struct fritz_adapter *adapter = isac->priv;
+ unsigned char idx = (offset > 0x2f) ?
+ AVM_IDX_ISAC_REG_HIGH : AVM_IDX_ISAC_REG_LOW;
+ unsigned char val;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->hw_lock, flags);
+ outb(idx, adapter->io + AVM_INDEX);
+ val = inb(adapter->io + AVM_DATA + (offset & 0xf));
+ spin_unlock_irqrestore(&adapter->hw_lock, flags);
+ DBG(0x1000, " port %#x, value %#x",
+ offset, val);
+ return val;
+}
+
+static void fcpci_write_isac(struct isac *isac, unsigned char offset,
+ unsigned char value)
+{
+ struct fritz_adapter *adapter = isac->priv;
+ unsigned char idx = (offset > 0x2f) ?
+ AVM_IDX_ISAC_REG_HIGH : AVM_IDX_ISAC_REG_LOW;
+ unsigned long flags;
+
+ DBG(0x1000, " port %#x, value %#x",
+ offset, value);
+ spin_lock_irqsave(&adapter->hw_lock, flags);
+ outb(idx, adapter->io + AVM_INDEX);
+ outb(value, adapter->io + AVM_DATA + (offset & 0xf));
+ spin_unlock_irqrestore(&adapter->hw_lock, flags);
+}
+
+static void fcpci_read_isac_fifo(struct isac *isac, unsigned char *data,
+ int size)
+{
+ struct fritz_adapter *adapter = isac->priv;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->hw_lock, flags);
+ outb(AVM_IDX_ISAC_FIFO, adapter->io + AVM_INDEX);
+ insb(adapter->io + AVM_DATA, data, size);
+ spin_unlock_irqrestore(&adapter->hw_lock, flags);
+}
+
+static void fcpci_write_isac_fifo(struct isac *isac, unsigned char *data,
+ int size)
+{
+ struct fritz_adapter *adapter = isac->priv;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->hw_lock, flags);
+ outb(AVM_IDX_ISAC_FIFO, adapter->io + AVM_INDEX);
+ outsb(adapter->io + AVM_DATA, data, size);
+ spin_unlock_irqrestore(&adapter->hw_lock, flags);
+}
+
+static u32 fcpci_read_hdlc_status(struct fritz_adapter *adapter, int nr)
+{
+ u32 val;
+ int idx = nr ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->hw_lock, flags);
+ outl(idx, adapter->io + AVM_INDEX);
+ val = inl(adapter->io + AVM_DATA + HDLC_STATUS);
+ spin_unlock_irqrestore(&adapter->hw_lock, flags);
+ return val;
+}
+
+static void __fcpci_write_ctrl(struct fritz_bcs *bcs, int which)
+{
+ struct fritz_adapter *adapter = bcs->adapter;
+ int idx = bcs->channel ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
+
+ DBG(0x40, "hdlc %c wr%x ctrl %x",
+ 'A' + bcs->channel, which, bcs->ctrl.ctrl);
+
+ outl(idx, adapter->io + AVM_INDEX);
+ outl(bcs->ctrl.ctrl, adapter->io + AVM_DATA + HDLC_CTRL);
+}
+
+static void fcpci_write_ctrl(struct fritz_bcs *bcs, int which)
+{
+ struct fritz_adapter *adapter = bcs->adapter;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->hw_lock, flags);
+ __fcpci_write_ctrl(bcs, which);
+ spin_unlock_irqrestore(&adapter->hw_lock, flags);
+}
+
+// ----------------------------------------------------------------------
+// Fritz!PCI v2
+
+static unsigned char fcpci2_read_isac(struct isac *isac, unsigned char offset)
+{
+ struct fritz_adapter *adapter = isac->priv;
+ unsigned char val;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->hw_lock, flags);
+ outl(offset, adapter->io + AVM_ISACSX_INDEX);
+ val = inl(adapter->io + AVM_ISACSX_DATA);
+ spin_unlock_irqrestore(&adapter->hw_lock, flags);
+ DBG(0x1000, " port %#x, value %#x",
+ offset, val);
+
+ return val;
+}
+
+static void fcpci2_write_isac(struct isac *isac, unsigned char offset,
+ unsigned char value)
+{
+ struct fritz_adapter *adapter = isac->priv;
+ unsigned long flags;
+
+ DBG(0x1000, " port %#x, value %#x",
+ offset, value);
+ spin_lock_irqsave(&adapter->hw_lock, flags);
+ outl(offset, adapter->io + AVM_ISACSX_INDEX);
+ outl(value, adapter->io + AVM_ISACSX_DATA);
+ spin_unlock_irqrestore(&adapter->hw_lock, flags);
+}
+
+static void fcpci2_read_isac_fifo(struct isac *isac, unsigned char *data,
+ int size)
+{
+ struct fritz_adapter *adapter = isac->priv;
+ int i;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->hw_lock, flags);
+ outl(0, adapter->io + AVM_ISACSX_INDEX);
+ for (i = 0; i < size; i++)
+ data[i] = inl(adapter->io + AVM_ISACSX_DATA);
+ spin_unlock_irqrestore(&adapter->hw_lock, flags);
+}
+
+static void fcpci2_write_isac_fifo(struct isac *isac, unsigned char *data,
+ int size)
+{
+ struct fritz_adapter *adapter = isac->priv;
+ int i;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->hw_lock, flags);
+ outl(0, adapter->io + AVM_ISACSX_INDEX);
+ for (i = 0; i < size; i++)
+ outl(data[i], adapter->io + AVM_ISACSX_DATA);
+ spin_unlock_irqrestore(&adapter->hw_lock, flags);
+}
+
+static u32 fcpci2_read_hdlc_status(struct fritz_adapter *adapter, int nr)
+{
+ int offset = nr ? AVM_HDLC_STATUS_2 : AVM_HDLC_STATUS_1;
+
+ return inl(adapter->io + offset);
+}
+
+static void fcpci2_write_ctrl(struct fritz_bcs *bcs, int which)
+{
+ struct fritz_adapter *adapter = bcs->adapter;
+ int offset = bcs->channel ? AVM_HDLC_STATUS_2 : AVM_HDLC_STATUS_1;
+
+ DBG(0x40, "hdlc %c wr%x ctrl %x",
+ 'A' + bcs->channel, which, bcs->ctrl.ctrl);
+
+ outl(bcs->ctrl.ctrl, adapter->io + offset);
+}
+
+// ----------------------------------------------------------------------
+// Fritz!PnP (ISAC access as for Fritz!PCI)
+
+static u32 fcpnp_read_hdlc_status(struct fritz_adapter *adapter, int nr)
+{
+ unsigned char idx = nr ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
+ u32 val;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->hw_lock, flags);
+ outb(idx, adapter->io + AVM_INDEX);
+ val = inb(adapter->io + AVM_DATA + HDLC_STATUS);
+ if (val & HDLC_INT_RPR)
+ val |= inb(adapter->io + AVM_DATA + HDLC_STATUS + 1) << 8;
+ spin_unlock_irqrestore(&adapter->hw_lock, flags);
+ return val;
+}
+
+static void __fcpnp_write_ctrl(struct fritz_bcs *bcs, int which)
+{
+ struct fritz_adapter *adapter = bcs->adapter;
+ unsigned char idx = bcs->channel ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
+
+ DBG(0x40, "hdlc %c wr%x ctrl %x",
+ 'A' + bcs->channel, which, bcs->ctrl.ctrl);
+
+ outb(idx, adapter->io + AVM_INDEX);
+ if (which & 4)
+ outb(bcs->ctrl.sr.mode,
+ adapter->io + AVM_DATA + HDLC_STATUS + 2);
+ if (which & 2)
+ outb(bcs->ctrl.sr.xml,
+ adapter->io + AVM_DATA + HDLC_STATUS + 1);
+ if (which & 1)
+ outb(bcs->ctrl.sr.cmd,
+ adapter->io + AVM_DATA + HDLC_STATUS + 0);
+}
+
+static void fcpnp_write_ctrl(struct fritz_bcs *bcs, int which)
+{
+ struct fritz_adapter *adapter = bcs->adapter;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->hw_lock, flags);
+ __fcpnp_write_ctrl(bcs, which);
+ spin_unlock_irqrestore(&adapter->hw_lock, flags);
+}
+
+// ----------------------------------------------------------------------
+
+static inline void B_L1L2(struct fritz_bcs *bcs, int pr, void *arg)
+{
+ struct hisax_if *ifc = (struct hisax_if *) &bcs->b_if;
+
+ DBG(2, "pr %#x", pr);
+ ifc->l1l2(ifc, pr, arg);
+}
+
+static void hdlc_fill_fifo(struct fritz_bcs *bcs)
+{
+ struct fritz_adapter *adapter = bcs->adapter;
+ struct sk_buff *skb = bcs->tx_skb;
+ int count;
+ unsigned long flags;
+ unsigned char *p;
+
+ DBG(0x40, "hdlc_fill_fifo");
+
+ BUG_ON(skb->len == 0);
+
+ bcs->ctrl.sr.cmd &= ~HDLC_CMD_XME;
+ if (bcs->tx_skb->len > bcs->fifo_size) {
+ count = bcs->fifo_size;
+ } else {
+ count = bcs->tx_skb->len;
+ if (bcs->mode != L1_MODE_TRANS)
+ bcs->ctrl.sr.cmd |= HDLC_CMD_XME;
+ }
+ DBG(0x40, "hdlc_fill_fifo %d/%d", count, bcs->tx_skb->len);
+ p = bcs->tx_skb->data;
+ skb_pull(bcs->tx_skb, count);
+ bcs->tx_cnt += count;
+ bcs->ctrl.sr.xml = ((count == bcs->fifo_size) ? 0 : count);
+
+ switch (adapter->type) {
+ case AVM_FRITZ_PCI:
+ spin_lock_irqsave(&adapter->hw_lock, flags);
+ // sets the correct AVM_INDEX, too
+ __fcpci_write_ctrl(bcs, 3);
+ outsl(adapter->io + AVM_DATA + HDLC_FIFO,
+ p, (count + 3) / 4);
+ spin_unlock_irqrestore(&adapter->hw_lock, flags);
+ break;
+ case AVM_FRITZ_PCIV2:
+ fcpci2_write_ctrl(bcs, 3);
+ outsl(adapter->io +
+ (bcs->channel ? AVM_HDLC_FIFO_2 : AVM_HDLC_FIFO_1),
+ p, (count + 3) / 4);
+ break;
+ case AVM_FRITZ_PNP:
+ spin_lock_irqsave(&adapter->hw_lock, flags);
+ // sets the correct AVM_INDEX, too
+ __fcpnp_write_ctrl(bcs, 3);
+ outsb(adapter->io + AVM_DATA, p, count);
+ spin_unlock_irqrestore(&adapter->hw_lock, flags);
+ break;
+ }
+}
+
+static inline void hdlc_empty_fifo(struct fritz_bcs *bcs, int count)
+{
+ struct fritz_adapter *adapter = bcs->adapter;
+ unsigned char *p;
+ unsigned char idx = bcs->channel ? AVM_IDX_HDLC_2 : AVM_IDX_HDLC_1;
+
+ DBG(0x10, "hdlc_empty_fifo %d", count);
+ if (bcs->rcvidx + count > HSCX_BUFMAX) {
+ DBG(0x10, "hdlc_empty_fifo: incoming packet too large");
+ return;
+ }
+ p = bcs->rcvbuf + bcs->rcvidx;
+ bcs->rcvidx += count;
+ switch (adapter->type) {
+ case AVM_FRITZ_PCI:
+ spin_lock(&adapter->hw_lock);
+ outl(idx, adapter->io + AVM_INDEX);
+ insl(adapter->io + AVM_DATA + HDLC_FIFO,
+ p, (count + 3) / 4);
+ spin_unlock(&adapter->hw_lock);
+ break;
+ case AVM_FRITZ_PCIV2:
+ insl(adapter->io +
+ (bcs->channel ? AVM_HDLC_FIFO_2 : AVM_HDLC_FIFO_1),
+ p, (count + 3) / 4);
+ break;
+ case AVM_FRITZ_PNP:
+ spin_lock(&adapter->hw_lock);
+ outb(idx, adapter->io + AVM_INDEX);
+ insb(adapter->io + AVM_DATA, p, count);
+ spin_unlock(&adapter->hw_lock);
+ break;
+ }
+}
+
+static inline void hdlc_rpr_irq(struct fritz_bcs *bcs, u32 stat)
+{
+ struct fritz_adapter *adapter = bcs->adapter;
+ struct sk_buff *skb;
+ int len;
+
+ if (stat & HDLC_STAT_RDO) {
+ DBG(0x10, "RDO");
+ bcs->ctrl.sr.xml = 0;
+ bcs->ctrl.sr.cmd |= HDLC_CMD_RRS;
+ adapter->write_ctrl(bcs, 1);
+ bcs->ctrl.sr.cmd &= ~HDLC_CMD_RRS;
+ adapter->write_ctrl(bcs, 1);
+ bcs->rcvidx = 0;
+ return;
+ }
+
+ len = (stat & HDLC_STAT_RML_MASK) >> 8;
+ if (len == 0)
+ len = bcs->fifo_size;
+
+ hdlc_empty_fifo(bcs, len);
+
+ if ((stat & HDLC_STAT_RME) || (bcs->mode == L1_MODE_TRANS)) {
+ if (((stat & HDLC_STAT_CRCVFRRAB) == HDLC_STAT_CRCVFR) ||
+ (bcs->mode == L1_MODE_TRANS)) {
+ skb = dev_alloc_skb(bcs->rcvidx);
+ if (!skb) {
+ printk(KERN_WARNING "HDLC: receive out of memory\n");
+ } else {
+ memcpy(skb_put(skb, bcs->rcvidx), bcs->rcvbuf,
+ bcs->rcvidx);
+ DBG_SKB(1, skb);
+ B_L1L2(bcs, PH_DATA | INDICATION, skb);
+ }
+ bcs->rcvidx = 0;
+ } else {
+ DBG(0x10, "ch%d invalid frame %#x",
+ bcs->channel, stat);
+ bcs->rcvidx = 0;
+ }
+ }
+}
+
+static inline void hdlc_xdu_irq(struct fritz_bcs *bcs)
+{
+ struct fritz_adapter *adapter = bcs->adapter;
+
+
+ /* Here we lost an TX interrupt, so
+ * restart transmitting the whole frame.
+ */
+ bcs->ctrl.sr.xml = 0;
+ bcs->ctrl.sr.cmd |= HDLC_CMD_XRS;
+ adapter->write_ctrl(bcs, 1);
+ bcs->ctrl.sr.cmd &= ~HDLC_CMD_XRS;
+
+ if (!bcs->tx_skb) {
+ DBG(0x10, "XDU without skb");
+ adapter->write_ctrl(bcs, 1);
+ return;
+ }
+ /* only hdlc restarts the frame, transparent mode must continue */
+ if (bcs->mode == L1_MODE_HDLC) {
+ skb_push(bcs->tx_skb, bcs->tx_cnt);
+ bcs->tx_cnt = 0;
+ }
+}
+
+static inline void hdlc_xpr_irq(struct fritz_bcs *bcs)
+{
+ struct sk_buff *skb;
+
+ skb = bcs->tx_skb;
+ if (!skb)
+ return;
+
+ if (skb->len) {
+ hdlc_fill_fifo(bcs);
+ return;
+ }
+ bcs->tx_cnt = 0;
+ bcs->tx_skb = NULL;
+ B_L1L2(bcs, PH_DATA | CONFIRM, (void *)(unsigned long)skb->truesize);
+ dev_kfree_skb_irq(skb);
+}
+
+static void hdlc_irq_one(struct fritz_bcs *bcs, u32 stat)
+{
+ DBG(0x10, "ch%d stat %#x", bcs->channel, stat);
+ if (stat & HDLC_INT_RPR) {
+ DBG(0x10, "RPR");
+ hdlc_rpr_irq(bcs, stat);
+ }
+ if (stat & HDLC_INT_XDU) {
+ DBG(0x10, "XDU");
+ hdlc_xdu_irq(bcs);
+ hdlc_xpr_irq(bcs);
+ return;
+ }
+ if (stat & HDLC_INT_XPR) {
+ DBG(0x10, "XPR");
+ hdlc_xpr_irq(bcs);
+ }
+}
+
+static inline void hdlc_irq(struct fritz_adapter *adapter)
+{
+ int nr;
+ u32 stat;
+
+ for (nr = 0; nr < 2; nr++) {
+ stat = adapter->read_hdlc_status(adapter, nr);
+ DBG(0x10, "HDLC %c stat %#x", 'A' + nr, stat);
+ if (stat & HDLC_INT_MASK)
+ hdlc_irq_one(&adapter->bcs[nr], stat);
+ }
+}
+
+static void modehdlc(struct fritz_bcs *bcs, int mode)
+{
+ struct fritz_adapter *adapter = bcs->adapter;
+
+ DBG(0x40, "hdlc %c mode %d --> %d",
+ 'A' + bcs->channel, bcs->mode, mode);
+
+ if (bcs->mode == mode)
+ return;
+
+ bcs->fifo_size = 32;
+ bcs->ctrl.ctrl = 0;
+ bcs->ctrl.sr.cmd = HDLC_CMD_XRS | HDLC_CMD_RRS;
+ switch (mode) {
+ case L1_MODE_NULL:
+ bcs->ctrl.sr.mode = HDLC_MODE_TRANS;
+ adapter->write_ctrl(bcs, 5);
+ break;
+ case L1_MODE_TRANS:
+ case L1_MODE_HDLC:
+ bcs->rcvidx = 0;
+ bcs->tx_cnt = 0;
+ bcs->tx_skb = NULL;
+ if (mode == L1_MODE_TRANS) {
+ bcs->ctrl.sr.mode = HDLC_MODE_TRANS;
+ } else {
+ bcs->ctrl.sr.mode = HDLC_MODE_ITF_FLG;
+ }
+ adapter->write_ctrl(bcs, 5);
+ bcs->ctrl.sr.cmd = HDLC_CMD_XRS;
+ adapter->write_ctrl(bcs, 1);
+ bcs->ctrl.sr.cmd = 0;
+ break;
+ }
+ bcs->mode = mode;
+}
+
+static void fritz_b_l2l1(struct hisax_if *ifc, int pr, void *arg)
+{
+ struct fritz_bcs *bcs = ifc->priv;
+ struct sk_buff *skb = arg;
+ int mode;
+
+ DBG(0x10, "pr %#x", pr);
+
+ switch (pr) {
+ case PH_DATA | REQUEST:
+ BUG_ON(bcs->tx_skb);
+ bcs->tx_skb = skb;
+ DBG_SKB(1, skb);
+ hdlc_fill_fifo(bcs);
+ break;
+ case PH_ACTIVATE | REQUEST:
+ mode = (long) arg;
+ DBG(4, "B%d,PH_ACTIVATE_REQUEST %d", bcs->channel + 1, mode);
+ modehdlc(bcs, mode);
+ B_L1L2(bcs, PH_ACTIVATE | INDICATION, NULL);
+ break;
+ case PH_DEACTIVATE | REQUEST:
+ DBG(4, "B%d,PH_DEACTIVATE_REQUEST", bcs->channel + 1);
+ modehdlc(bcs, L1_MODE_NULL);
+ B_L1L2(bcs, PH_DEACTIVATE | INDICATION, NULL);
+ break;
+ }
+}
+
+// ----------------------------------------------------------------------
+
+static irqreturn_t
+fcpci2_irq(int intno, void *dev)
+{
+ struct fritz_adapter *adapter = dev;
+ unsigned char val;
+
+ val = inb(adapter->io + AVM_STATUS0);
+ if (!(val & AVM_STATUS0_IRQ_MASK))
+ /* hopefully a shared IRQ reqest */
+ return IRQ_NONE;
+ DBG(2, "STATUS0 %#x", val);
+ if (val & AVM_STATUS0_IRQ_ISAC)
+ isacsx_irq(&adapter->isac);
+ if (val & AVM_STATUS0_IRQ_HDLC)
+ hdlc_irq(adapter);
+ if (val & AVM_STATUS0_IRQ_ISAC)
+ isacsx_irq(&adapter->isac);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t
+fcpci_irq(int intno, void *dev)
+{
+ struct fritz_adapter *adapter = dev;
+ unsigned char sval;
+
+ sval = inb(adapter->io + 2);
+ if ((sval & AVM_STATUS0_IRQ_MASK) == AVM_STATUS0_IRQ_MASK)
+ /* possibly a shared IRQ reqest */
+ return IRQ_NONE;
+ DBG(2, "sval %#x", sval);
+ if (!(sval & AVM_STATUS0_IRQ_ISAC))
+ isac_irq(&adapter->isac);
+
+ if (!(sval & AVM_STATUS0_IRQ_HDLC))
+ hdlc_irq(adapter);
+ return IRQ_HANDLED;
+}
+
+// ----------------------------------------------------------------------
+
+static inline void fcpci2_init(struct fritz_adapter *adapter)
+{
+ outb(AVM_STATUS0_RES_TIMER, adapter->io + AVM_STATUS0);
+ outb(AVM_STATUS0_ENA_IRQ, adapter->io + AVM_STATUS0);
+
+}
+
+static inline void fcpci_init(struct fritz_adapter *adapter)
+{
+ outb(AVM_STATUS0_DIS_TIMER | AVM_STATUS0_RES_TIMER |
+ AVM_STATUS0_ENA_IRQ, adapter->io + AVM_STATUS0);
+
+ outb(AVM_STATUS1_ENA_IOM | adapter->irq,
+ adapter->io + AVM_STATUS1);
+ mdelay(10);
+}
+
+// ----------------------------------------------------------------------
+
+static int fcpcipnp_setup(struct fritz_adapter *adapter)
+{
+ u32 val = 0;
+ int retval;
+
+ DBG(1, "");
+
+ isac_init(&adapter->isac); // FIXME is this okay now
+
+ retval = -EBUSY;
+ if (!request_region(adapter->io, 32, "fcpcipnp"))
+ goto err;
+
+ switch (adapter->type) {
+ case AVM_FRITZ_PCIV2:
+ case AVM_FRITZ_PCI:
+ val = inl(adapter->io);
+ break;
+ case AVM_FRITZ_PNP:
+ val = inb(adapter->io);
+ val |= inb(adapter->io + 1) << 8;
+ break;
+ }
+
+ DBG(1, "stat %#x Class %X Rev %d",
+ val, val & 0xff, (val >> 8) & 0xff);
+
+ spin_lock_init(&adapter->hw_lock);
+ adapter->isac.priv = adapter;
+ switch (adapter->type) {
+ case AVM_FRITZ_PCIV2:
+ adapter->isac.read_isac = &fcpci2_read_isac;
+ adapter->isac.write_isac = &fcpci2_write_isac;
+ adapter->isac.read_isac_fifo = &fcpci2_read_isac_fifo;
+ adapter->isac.write_isac_fifo = &fcpci2_write_isac_fifo;
+
+ adapter->read_hdlc_status = &fcpci2_read_hdlc_status;
+ adapter->write_ctrl = &fcpci2_write_ctrl;
+ break;
+ case AVM_FRITZ_PCI:
+ adapter->isac.read_isac = &fcpci_read_isac;
+ adapter->isac.write_isac = &fcpci_write_isac;
+ adapter->isac.read_isac_fifo = &fcpci_read_isac_fifo;
+ adapter->isac.write_isac_fifo = &fcpci_write_isac_fifo;
+
+ adapter->read_hdlc_status = &fcpci_read_hdlc_status;
+ adapter->write_ctrl = &fcpci_write_ctrl;
+ break;
+ case AVM_FRITZ_PNP:
+ adapter->isac.read_isac = &fcpci_read_isac;
+ adapter->isac.write_isac = &fcpci_write_isac;
+ adapter->isac.read_isac_fifo = &fcpci_read_isac_fifo;
+ adapter->isac.write_isac_fifo = &fcpci_write_isac_fifo;
+
+ adapter->read_hdlc_status = &fcpnp_read_hdlc_status;
+ adapter->write_ctrl = &fcpnp_write_ctrl;
+ break;
+ }
+
+ // Reset
+ outb(0, adapter->io + AVM_STATUS0);
+ mdelay(10);
+ outb(AVM_STATUS0_RESET, adapter->io + AVM_STATUS0);
+ mdelay(10);
+ outb(0, adapter->io + AVM_STATUS0);
+ mdelay(10);
+
+ switch (adapter->type) {
+ case AVM_FRITZ_PCIV2:
+ retval = request_irq(adapter->irq, fcpci2_irq, IRQF_SHARED,
+ "fcpcipnp", adapter);
+ break;
+ case AVM_FRITZ_PCI:
+ retval = request_irq(adapter->irq, fcpci_irq, IRQF_SHARED,
+ "fcpcipnp", adapter);
+ break;
+ case AVM_FRITZ_PNP:
+ retval = request_irq(adapter->irq, fcpci_irq, 0,
+ "fcpcipnp", adapter);
+ break;
+ }
+ if (retval)
+ goto err_region;
+
+ switch (adapter->type) {
+ case AVM_FRITZ_PCIV2:
+ fcpci2_init(adapter);
+ isacsx_setup(&adapter->isac);
+ break;
+ case AVM_FRITZ_PCI:
+ case AVM_FRITZ_PNP:
+ fcpci_init(adapter);
+ isac_setup(&adapter->isac);
+ break;
+ }
+ val = adapter->read_hdlc_status(adapter, 0);
+ DBG(0x20, "HDLC A STA %x", val);
+ val = adapter->read_hdlc_status(adapter, 1);
+ DBG(0x20, "HDLC B STA %x", val);
+
+ adapter->bcs[0].mode = -1;
+ adapter->bcs[1].mode = -1;
+ modehdlc(&adapter->bcs[0], L1_MODE_NULL);
+ modehdlc(&adapter->bcs[1], L1_MODE_NULL);
+
+ return 0;
+
+err_region:
+ release_region(adapter->io, 32);
+err:
+ return retval;
+}
+
+static void fcpcipnp_release(struct fritz_adapter *adapter)
+{
+ DBG(1, "");
+
+ outb(0, adapter->io + AVM_STATUS0);
+ free_irq(adapter->irq, adapter);
+ release_region(adapter->io, 32);
+}
+
+// ----------------------------------------------------------------------
+
+static struct fritz_adapter *new_adapter(void)
+{
+ struct fritz_adapter *adapter;
+ struct hisax_b_if *b_if[2];
+ int i;
+
+ adapter = kzalloc(sizeof(struct fritz_adapter), GFP_KERNEL);
+ if (!adapter)
+ return NULL;
+
+ adapter->isac.hisax_d_if.owner = THIS_MODULE;
+ adapter->isac.hisax_d_if.ifc.priv = &adapter->isac;
+ adapter->isac.hisax_d_if.ifc.l2l1 = isac_d_l2l1;
+
+ for (i = 0; i < 2; i++) {
+ adapter->bcs[i].adapter = adapter;
+ adapter->bcs[i].channel = i;
+ adapter->bcs[i].b_if.ifc.priv = &adapter->bcs[i];
+ adapter->bcs[i].b_if.ifc.l2l1 = fritz_b_l2l1;
+ }
+
+ for (i = 0; i < 2; i++)
+ b_if[i] = &adapter->bcs[i].b_if;
+
+ if (hisax_register(&adapter->isac.hisax_d_if, b_if, "fcpcipnp",
+ protocol) != 0) {
+ kfree(adapter);
+ adapter = NULL;
+ }
+
+ return adapter;
+}
+
+static void delete_adapter(struct fritz_adapter *adapter)
+{
+ hisax_unregister(&adapter->isac.hisax_d_if);
+ kfree(adapter);
+}
+
+static int fcpci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ struct fritz_adapter *adapter;
+ int retval;
+
+ retval = -ENOMEM;
+ adapter = new_adapter();
+ if (!adapter)
+ goto err;
+
+ pci_set_drvdata(pdev, adapter);
+
+ if (pdev->device == PCI_DEVICE_ID_AVM_A1_V2)
+ adapter->type = AVM_FRITZ_PCIV2;
+ else
+ adapter->type = AVM_FRITZ_PCI;
+
+ retval = pci_enable_device(pdev);
+ if (retval)
+ goto err_free;
+
+ adapter->io = pci_resource_start(pdev, 1);
+ adapter->irq = pdev->irq;
+
+ printk(KERN_INFO "hisax_fcpcipnp: found adapter %s at %s\n",
+ (char *) ent->driver_data, pci_name(pdev));
+
+ retval = fcpcipnp_setup(adapter);
+ if (retval)
+ goto err_free;
+
+ return 0;
+
+err_free:
+ delete_adapter(adapter);
+err:
+ return retval;
+}
+
+#ifdef CONFIG_PNP
+static int fcpnp_probe(struct pnp_dev *pdev, const struct pnp_device_id *dev_id)
+{
+ struct fritz_adapter *adapter;
+ int retval;
+
+ if (!pdev)
+ return (-ENODEV);
+
+ retval = -ENOMEM;
+ adapter = new_adapter();
+ if (!adapter)
+ goto err;
+
+ pnp_set_drvdata(pdev, adapter);
+
+ adapter->type = AVM_FRITZ_PNP;
+
+ pnp_disable_dev(pdev);
+ retval = pnp_activate_dev(pdev);
+ if (retval < 0) {
+ printk(KERN_WARNING "%s: pnp_activate_dev(%s) ret(%d)\n", __func__,
+ (char *)dev_id->driver_data, retval);
+ goto err_free;
+ }
+ adapter->io = pnp_port_start(pdev, 0);
+ adapter->irq = pnp_irq(pdev, 0);
+
+ printk(KERN_INFO "hisax_fcpcipnp: found adapter %s at IO %#x irq %d\n",
+ (char *) dev_id->driver_data, adapter->io, adapter->irq);
+
+ retval = fcpcipnp_setup(adapter);
+ if (retval)
+ goto err_free;
+
+ return 0;
+
+err_free:
+ delete_adapter(adapter);
+err:
+ return retval;
+}
+
+static void fcpnp_remove(struct pnp_dev *pdev)
+{
+ struct fritz_adapter *adapter = pnp_get_drvdata(pdev);
+
+ if (adapter) {
+ fcpcipnp_release(adapter);
+ delete_adapter(adapter);
+ }
+ pnp_disable_dev(pdev);
+}
+
+static struct pnp_driver fcpnp_driver = {
+ .name = "fcpnp",
+ .probe = fcpnp_probe,
+ .remove = fcpnp_remove,
+ .id_table = fcpnp_ids,
+};
+#endif
+
+static void fcpci_remove(struct pci_dev *pdev)
+{
+ struct fritz_adapter *adapter = pci_get_drvdata(pdev);
+
+ fcpcipnp_release(adapter);
+ pci_disable_device(pdev);
+ delete_adapter(adapter);
+}
+
+static struct pci_driver fcpci_driver = {
+ .name = "fcpci",
+ .probe = fcpci_probe,
+ .remove = fcpci_remove,
+ .id_table = fcpci_ids,
+};
+
+static int __init hisax_fcpcipnp_init(void)
+{
+ int retval;
+
+ printk(KERN_INFO "hisax_fcpcipnp: Fritz!Card PCI/PCIv2/PnP ISDN driver v0.0.1\n");
+
+ retval = pci_register_driver(&fcpci_driver);
+ if (retval)
+ return retval;
+#ifdef CONFIG_PNP
+ retval = pnp_register_driver(&fcpnp_driver);
+ if (retval < 0) {
+ pci_unregister_driver(&fcpci_driver);
+ return retval;
+ }
+#endif
+ return 0;
+}
+
+static void __exit hisax_fcpcipnp_exit(void)
+{
+#ifdef CONFIG_PNP
+ pnp_unregister_driver(&fcpnp_driver);
+#endif
+ pci_unregister_driver(&fcpci_driver);
+}
+
+module_init(hisax_fcpcipnp_init);
+module_exit(hisax_fcpcipnp_exit);
Code Review / kvmfornfv.git / blobdiff