Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/isdn/hisax/isurf.c b/drivers/isdn/hisax/isurf.c
new file mode 100644
index 0000000..af5171d
--- /dev/null
+++ b/drivers/isdn/hisax/isurf.c
@@ -0,0 +1,306 @@
+/* $Id: isurf.c,v 1.12.2.4 2004/01/13 21:46:03 keil Exp $
+ *
+ * low level stuff for Siemens I-Surf/I-Talk cards
+ *
+ * Author Karsten Keil
+ * Copyright by Karsten Keil <keil@isdn4linux.de>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/init.h>
+#include "hisax.h"
+#include "isac.h"
+#include "isar.h"
+#include "isdnl1.h"
+#include <linux/isapnp.h>
+
+extern const char *CardType[];
+
+static const char *ISurf_revision = "$Revision: 1.12.2.4 $";
+
+#define byteout(addr,val) outb(val,addr)
+#define bytein(addr) inb(addr)
+
+#define ISURF_ISAR_RESET 1
+#define ISURF_ISAC_RESET 2
+#define ISURF_ISAR_EA 4
+#define ISURF_ARCOFI_RESET 8
+#define ISURF_RESET (ISURF_ISAR_RESET | ISURF_ISAC_RESET | ISURF_ARCOFI_RESET)
+
+#define ISURF_ISAR_OFFSET 0
+#define ISURF_ISAC_OFFSET 0x100
+#define ISURF_IOMEM_SIZE 0x400
+/* Interface functions */
+
+static u_char
+ReadISAC(struct IsdnCardState *cs, u_char offset)
+{
+ return (readb(cs->hw.isurf.isac + offset));
+}
+
+static void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+ writeb(value, cs->hw.isurf.isac + offset); mb();
+}
+
+static void
+ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+ register int i;
+ for (i = 0; i < size; i++)
+ data[i] = readb(cs->hw.isurf.isac);
+}
+
+static void
+WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+ register int i;
+ for (i = 0; i < size; i++){
+ writeb(data[i], cs->hw.isurf.isac);mb();
+ }
+}
+
+/* ISAR access routines
+ * mode = 0 access with IRQ on
+ * mode = 1 access with IRQ off
+ * mode = 2 access with IRQ off and using last offset
+ */
+
+static u_char
+ReadISAR(struct IsdnCardState *cs, int mode, u_char offset)
+{
+ return(readb(cs->hw.isurf.isar + offset));
+}
+
+static void
+WriteISAR(struct IsdnCardState *cs, int mode, u_char offset, u_char value)
+{
+ writeb(value, cs->hw.isurf.isar + offset);mb();
+}
+
+static irqreturn_t
+isurf_interrupt(int intno, void *dev_id, struct pt_regs *regs)
+{
+ struct IsdnCardState *cs = dev_id;
+ u_char val;
+ int cnt = 5;
+ u_long flags;
+
+ spin_lock_irqsave(&cs->lock, flags);
+ val = readb(cs->hw.isurf.isar + ISAR_IRQBIT);
+ Start_ISAR:
+ if (val & ISAR_IRQSTA)
+ isar_int_main(cs);
+ val = readb(cs->hw.isurf.isac + ISAC_ISTA);
+ Start_ISAC:
+ if (val)
+ isac_interrupt(cs, val);
+ val = readb(cs->hw.isurf.isar + ISAR_IRQBIT);
+ if ((val & ISAR_IRQSTA) && --cnt) {
+ if (cs->debug & L1_DEB_HSCX)
+ debugl1(cs, "ISAR IntStat after IntRoutine");
+ goto Start_ISAR;
+ }
+ val = readb(cs->hw.isurf.isac + ISAC_ISTA);
+ if (val && --cnt) {
+ if (cs->debug & L1_DEB_ISAC)
+ debugl1(cs, "ISAC IntStat after IntRoutine");
+ goto Start_ISAC;
+ }
+ if (!cnt)
+ printk(KERN_WARNING "ISurf IRQ LOOP\n");
+
+ writeb(0, cs->hw.isurf.isar + ISAR_IRQBIT); mb();
+ writeb(0xFF, cs->hw.isurf.isac + ISAC_MASK);mb();
+ writeb(0, cs->hw.isurf.isac + ISAC_MASK);mb();
+ writeb(ISAR_IRQMSK, cs->hw.isurf.isar + ISAR_IRQBIT); mb();
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return IRQ_HANDLED;
+}
+
+void
+release_io_isurf(struct IsdnCardState *cs)
+{
+ release_region(cs->hw.isurf.reset, 1);
+ iounmap(cs->hw.isurf.isar);
+ release_mem_region(cs->hw.isurf.phymem, ISURF_IOMEM_SIZE);
+}
+
+static void
+reset_isurf(struct IsdnCardState *cs, u_char chips)
+{
+ printk(KERN_INFO "ISurf: resetting card\n");
+
+ byteout(cs->hw.isurf.reset, chips); /* Reset On */
+ mdelay(10);
+ byteout(cs->hw.isurf.reset, ISURF_ISAR_EA); /* Reset Off */
+ mdelay(10);
+}
+
+static int
+ISurf_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+ u_long flags;
+
+ switch (mt) {
+ case CARD_RESET:
+ spin_lock_irqsave(&cs->lock, flags);
+ reset_isurf(cs, ISURF_RESET);
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return(0);
+ case CARD_RELEASE:
+ release_io_isurf(cs);
+ return(0);
+ case CARD_INIT:
+ spin_lock_irqsave(&cs->lock, flags);
+ reset_isurf(cs, ISURF_RESET);
+ clear_pending_isac_ints(cs);
+ writeb(0, cs->hw.isurf.isar+ISAR_IRQBIT);mb();
+ initisac(cs);
+ initisar(cs);
+ /* Reenable ISAC IRQ */
+ cs->writeisac(cs, ISAC_MASK, 0);
+ /* RESET Receiver and Transmitter */
+ cs->writeisac(cs, ISAC_CMDR, 0x41);
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return(0);
+ case CARD_TEST:
+ return(0);
+ }
+ return(0);
+}
+
+static int
+isurf_auxcmd(struct IsdnCardState *cs, isdn_ctrl *ic) {
+ int ret;
+ u_long flags;
+
+ if ((ic->command == ISDN_CMD_IOCTL) && (ic->arg == 9)) {
+ ret = isar_auxcmd(cs, ic);
+ spin_lock_irqsave(&cs->lock, flags);
+ if (!ret) {
+ reset_isurf(cs, ISURF_ISAR_EA | ISURF_ISAC_RESET |
+ ISURF_ARCOFI_RESET);
+ initisac(cs);
+ cs->writeisac(cs, ISAC_MASK, 0);
+ cs->writeisac(cs, ISAC_CMDR, 0x41);
+ }
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return(ret);
+ }
+ return(isar_auxcmd(cs, ic));
+}
+
+#ifdef __ISAPNP__
+static struct pnp_card *pnp_c __initdata = NULL;
+#endif
+
+int __init
+setup_isurf(struct IsdnCard *card)
+{
+ int ver;
+ struct IsdnCardState *cs = card->cs;
+ char tmp[64];
+
+ strcpy(tmp, ISurf_revision);
+ printk(KERN_INFO "HiSax: ISurf driver Rev. %s\n", HiSax_getrev(tmp));
+
+ if (cs->typ != ISDN_CTYPE_ISURF)
+ return(0);
+ if (card->para[1] && card->para[2]) {
+ cs->hw.isurf.reset = card->para[1];
+ cs->hw.isurf.phymem = card->para[2];
+ cs->irq = card->para[0];
+ } else {
+#ifdef __ISAPNP__
+ if (isapnp_present()) {
+ struct pnp_dev *pnp_d = NULL;
+ int err;
+
+ cs->subtyp = 0;
+ if ((pnp_c = pnp_find_card(
+ ISAPNP_VENDOR('S', 'I', 'E'),
+ ISAPNP_FUNCTION(0x0010), pnp_c))) {
+ if (!(pnp_d = pnp_find_dev(pnp_c,
+ ISAPNP_VENDOR('S', 'I', 'E'),
+ ISAPNP_FUNCTION(0x0010), pnp_d))) {
+ printk(KERN_ERR "ISurfPnP: PnP error card found, no device\n");
+ return (0);
+ }
+ pnp_disable_dev(pnp_d);
+ err = pnp_activate_dev(pnp_d);
+ cs->hw.isurf.reset = pnp_port_start(pnp_d, 0);
+ cs->hw.isurf.phymem = pnp_mem_start(pnp_d, 1);
+ cs->irq = pnp_irq(pnp_d, 0);
+ if (!cs->irq || !cs->hw.isurf.reset || !cs->hw.isurf.phymem) {
+ printk(KERN_ERR "ISurfPnP:some resources are missing %d/%x/%lx\n",
+ cs->irq, cs->hw.isurf.reset, cs->hw.isurf.phymem);
+ pnp_disable_dev(pnp_d);
+ return(0);
+ }
+ } else {
+ printk(KERN_INFO "ISurfPnP: no ISAPnP card found\n");
+ return(0);
+ }
+ } else {
+ printk(KERN_INFO "ISurfPnP: no ISAPnP bus found\n");
+ return(0);
+ }
+#else
+ printk(KERN_WARNING "HiSax: %s port/mem not set\n",
+ CardType[card->typ]);
+ return (0);
+#endif
+ }
+ if (!request_region(cs->hw.isurf.reset, 1, "isurf isdn")) {
+ printk(KERN_WARNING
+ "HiSax: %s config port %x already in use\n",
+ CardType[card->typ],
+ cs->hw.isurf.reset);
+ return (0);
+ }
+ if (!request_region(cs->hw.isurf.phymem, ISURF_IOMEM_SIZE, "isurf iomem")) {
+ printk(KERN_WARNING
+ "HiSax: %s memory region %lx-%lx already in use\n",
+ CardType[card->typ],
+ cs->hw.isurf.phymem,
+ cs->hw.isurf.phymem + ISURF_IOMEM_SIZE);
+ release_region(cs->hw.isurf.reset, 1);
+ return (0);
+ }
+ cs->hw.isurf.isar = ioremap(cs->hw.isurf.phymem, ISURF_IOMEM_SIZE);
+ cs->hw.isurf.isac = cs->hw.isurf.isar + ISURF_ISAC_OFFSET;
+ printk(KERN_INFO
+ "ISurf: defined at 0x%x 0x%lx IRQ %d\n",
+ cs->hw.isurf.reset,
+ cs->hw.isurf.phymem,
+ cs->irq);
+
+ setup_isac(cs);
+ cs->cardmsg = &ISurf_card_msg;
+ cs->irq_func = &isurf_interrupt;
+ cs->auxcmd = &isurf_auxcmd;
+ cs->readisac = &ReadISAC;
+ cs->writeisac = &WriteISAC;
+ cs->readisacfifo = &ReadISACfifo;
+ cs->writeisacfifo = &WriteISACfifo;
+ cs->bcs[0].hw.isar.reg = &cs->hw.isurf.isar_r;
+ cs->bcs[1].hw.isar.reg = &cs->hw.isurf.isar_r;
+ test_and_set_bit(HW_ISAR, &cs->HW_Flags);
+ ISACVersion(cs, "ISurf:");
+ cs->BC_Read_Reg = &ReadISAR;
+ cs->BC_Write_Reg = &WriteISAR;
+ cs->BC_Send_Data = &isar_fill_fifo;
+ ver = ISARVersion(cs, "ISurf:");
+ if (ver < 0) {
+ printk(KERN_WARNING
+ "ISurf: wrong ISAR version (ret = %d)\n", ver);
+ release_io_isurf(cs);
+ return (0);
+ }
+ return (1);
+}