Index: dahdi-linux-2.1.0.4/drivers/dahdi/zaphfc.h
===================================================================
--- dahdi-linux-2.1.0.4.orig/drivers/dahdi/zaphfc.h 2009-03-17 18:13:54.000000000 +0200
+++ dahdi-linux-2.1.0.4/drivers/dahdi/zaphfc.h 2009-03-17 18:14:44.000000000 +0200
@@ -135,8 +135,12 @@
/* bits in HFCD_MST_MODE */
#define hfc_MST_MODE_MASTER 0x01
#define hfc_MST_MODE_SLAVE 0x00
+#define hfc_MST_MODE_F0_LONG_DURATION 0x08
/* remaining bits are for codecs control */
+/* bits in HFCD_MST_EMOD */
+#define hfc_MST_EMOD_SLOW_CLOCK_ADJ 0x01
+
/* bits in HFCD_SCTRL */
#define hfc_SCTRL_B1_ENA 0x01
#define hfc_SCTRL_B2_ENA 0x02
@@ -236,6 +240,9 @@
#define hfc_BTRANS_THRESHOLD 128
#define hfc_BTRANS_THRESMASK 0x00
+#define hfc_FIFO_MEM_SIZE_BYTES (32*1024)
+#define hfc_FIFO_MEM_SIZE_PAGES ((hfc_FIFO_MEM_SIZE_BYTES+PAGE_SIZE-1)/PAGE_SIZE)
+
/* Structures */
typedef struct hfc_regs {
@@ -249,20 +256,67 @@
unsigned char connect;
unsigned char trm;
unsigned char mst_mode;
+ unsigned char mst_emod;
unsigned char bswapped;
unsigned char nt_mode;
unsigned char int_drec;
} hfc_regs;
+struct bch {
+ int fill_fifo,checkcnt,initialized;
+ struct {
+ u16 z2;
+ struct {
+ volatile u16 *z1p;
+ volatile u8 *fifo_base;
+ int filled;
+ } c[2];
+ int diff;
+ } rx;
+ struct {
+ u16 z1;
+ struct {
+ volatile u16 *z1p,*z2p;
+ volatile u8 *fifo_base;
+ int filled;
+ } c[2];
+ int diff;
+ } tx;
+};
+
+struct dch {
+ struct {
+ struct {
+ volatile u8 *p;
+ } f1;
+ struct {
+ u8 v;
+ struct {
+ u16 v;
+ } z2;
+ } f2;
+ } rx;
+ struct {
+ struct {
+ u8 v;
+ volatile u8 *p;
+ struct {
+ u16 v;
+ } z1;
+ } f1;
+ struct {
+ volatile u8 *p;
+ } f2;
+ } tx;
+};
+
typedef struct hfc_card {
spinlock_t lock;
unsigned int irq;
unsigned int iomem;
int ticks;
- int clicks;
unsigned char *pci_io;
- void *fifomem; // start of the shared mem
- volatile void *fifos; // 32k aligned mem for the fifos
+ void *fifos; // 32k aligned mem for the fifos
struct hfc_regs regs;
unsigned int pcibus;
unsigned int pcidevfn;
@@ -274,6 +328,9 @@
unsigned char brecbuf[2][DAHDI_CHUNKSIZE];
unsigned char btransbuf[2][DAHDI_CHUNKSIZE];
unsigned char cardno;
+ int active;
+ struct bch bch;
+ struct dch dch;
struct hfc_card *next;
} hfc_card;
@@ -285,6 +342,3 @@
struct hfc_card *card;
} dahdi_hfc;
-/* tune this */
-#define hfc_BCHAN_BUFFER 8
-#define hfc_MAX_CARDS 8
Index: dahdi-linux-2.1.0.4/drivers/dahdi/zaphfc.c
===================================================================
--- dahdi-linux-2.1.0.4.orig/drivers/dahdi/zaphfc.c 2009-03-17 18:52:47.000000000 +0200
+++ dahdi-linux-2.1.0.4/drivers/dahdi/zaphfc.c 2009-03-17 18:53:43.000000000 +0200
@@ -7,19 +7,21 @@
*
* Klaus-Peter Junghanns <kpj@junghanns.net>
*
+ * Copyright (C) 2004, 2005, 2006 Florian Zumbiehl <florz@gmx.de>
+ * - support for slave mode of the HFC-S chip which allows it to
+ * sync its sample clock to an external source/another HFC chip
+ * - support for "interrupt bundling" (let only one card generate
+ * 8 kHz timing interrupt no matter how many cards there are
+ * in the system)
+ * - interrupt loss tolerant b channel handling
+ *
* This program is free software and may be modified and
- * distributed under the terms of the GNU Public License.
+ * distributed under the terms of the GNU General Public License.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
-#ifdef RTAITIMING
-#include <asm/io.h>
-#include <rtai.h>
-#include <rtai_sched.h>
-#include <rtai_fifos.h>
-#endif
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/interrupt.h>
@@ -29,6 +31,8 @@
#include <linux/moduleparam.h>
+#define log2(n) ffz(~(n))
+
#if CONFIG_PCI
#define CLKDEL_TE 0x0f /* CLKDEL in TE mode */
@@ -70,42 +74,31 @@
static struct hfc_card *hfc_dev_list = NULL;
static int hfc_dev_count = 0;
static int modes = 0; // all TE
+static int sync_slave = 0; // all master
+static int timer_card = 0;
+static int jitterbuffer = 1;
static int debug = 0;
static struct pci_dev *multi_hfc = NULL;
static spinlock_t registerlock = SPIN_LOCK_UNLOCKED;
-void hfc_shutdownCard(struct hfc_card *hfctmp) {
- unsigned long flags;
-
- if (hfctmp == NULL) {
- return;
- }
-
- if (hfctmp->pci_io == NULL) {
- return;
- }
-
- spin_lock_irqsave(&hfctmp->lock,flags);
-
+void hfc_shutdownCard1(struct hfc_card *hfctmp) {
printk(KERN_INFO "zaphfc: shutting down card at %p.\n",hfctmp->pci_io);
/* Clear interrupt mask */
hfctmp->regs.int_m2 = 0;
hfc_outb(hfctmp, hfc_INT_M2, hfctmp->regs.int_m2);
- /* Reset pending interrupts */
- hfc_inb(hfctmp, hfc_INT_S1);
+ /* Remove interrupt handler */
+ free_irq(hfctmp->irq,hfctmp);
+}
+
+void hfc_shutdownCard2(struct hfc_card *hfctmp) {
+ unsigned long flags;
- /* Wait for interrupts that might still be pending */
- spin_unlock_irqrestore(&hfctmp->lock, flags);
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout((30 * HZ) / 1000); // wait 30 ms
spin_lock_irqsave(&hfctmp->lock,flags);
- /* Remove interrupt handler */
- if (hfctmp->irq) {
- free_irq(hfctmp->irq, hfctmp);
- }
+ /* Reset pending interrupts */
+ hfc_inb(hfctmp, hfc_INT_S1);
/* Soft-reset the card */
hfc_outb(hfctmp, hfc_CIRM, hfc_CIRM_RESET); // softreset on
@@ -119,8 +112,8 @@
pci_write_config_word(hfctmp->pcidev, PCI_COMMAND, 0); // disable memio and bustmaster
- if (hfctmp->fifomem != NULL) {
- kfree(hfctmp->fifomem);
+ if (hfctmp->fifos != NULL) {
+ free_pages((unsigned long)hfctmp->fifos,log2(hfc_FIFO_MEM_SIZE_PAGES));
}
iounmap((void *) hfctmp->pci_io);
hfctmp->pci_io = NULL;
@@ -130,11 +123,24 @@
spin_unlock_irqrestore(&hfctmp->lock,flags);
if (hfctmp->ztdev != NULL) {
dahdi_unregister(&hfctmp->ztdev->span);
- kfree(hfctmp->ztdev);
+ vfree(hfctmp->ztdev);
printk(KERN_INFO "unregistered from DAHDI.\n");
}
}
+void hfc_shutdownCard(struct hfc_card *hfctmp) {
+ if (hfctmp == NULL) {
+ return;
+ }
+
+ if (hfctmp->pci_io == NULL) {
+ return;
+ }
+
+ hfc_shutdownCard1(hfctmp);
+ hfc_shutdownCard2(hfctmp);
+}
+
void hfc_resetCard(struct hfc_card *hfctmp) {
unsigned long flags;
@@ -178,14 +184,14 @@
hfctmp->regs.ctmt = hfc_CTMT_TRANSB1 | hfc_CTMT_TRANSB2; // all bchans are transparent , no freaking hdlc
hfc_outb(hfctmp, hfc_CTMT, hfctmp->regs.ctmt);
- hfctmp->regs.int_m1 = 0;
+ hfctmp->regs.int_m1=hfc_INTS_L1STATE;
+ if(hfctmp->cardno==timer_card){
+ hfctmp->regs.int_m2=hfc_M2_PROC_TRANS;
+ }else{
+ hfctmp->regs.int_m1|=hfc_INTS_DREC;
+ hfctmp->regs.int_m2=0;
+ }
hfc_outb(hfctmp, hfc_INT_M1, hfctmp->regs.int_m1);
-
-#ifdef RTAITIMING
- hfctmp->regs.int_m2 = 0;
-#else
- hfctmp->regs.int_m2 = hfc_M2_PROC_TRANS;
-#endif
hfc_outb(hfctmp, hfc_INT_M2, hfctmp->regs.int_m2);
/* Clear already pending ints */
@@ -197,8 +203,8 @@
hfctmp->regs.sctrl = 3 | hfc_SCTRL_NONE_CAP | hfc_SCTRL_MODE_TE; /* set tx_lo mode, error in datasheet ! */
}
- hfctmp->regs.mst_mode = hfc_MST_MODE_MASTER; /* HFC Master Mode */
hfc_outb(hfctmp, hfc_MST_MODE, hfctmp->regs.mst_mode);
+ hfc_outb(hfctmp, hfc_MST_EMOD, hfctmp->regs.mst_emod);
hfc_outb(hfctmp, hfc_SCTRL, hfctmp->regs.sctrl);
hfctmp->regs.sctrl_r = 3;
@@ -210,10 +216,8 @@
hfc_outb(hfctmp, hfc_CIRM, 0x80 | 0x40); // bit order
/* Finally enable IRQ output */
-#ifndef RTAITIMING
hfctmp->regs.int_m2 |= hfc_M2_IRQ_ENABLE;
hfc_outb(hfctmp, hfc_INT_M2, hfctmp->regs.int_m2);
-#endif
/* clear pending ints */
hfc_inb(hfctmp, hfc_INT_S1);
@@ -230,368 +234,210 @@
spin_unlock(®isterlock);
}
-static void hfc_btrans(struct hfc_card *hfctmp, char whichB) {
- // we are called with irqs disabled from the irq handler
- int count, maxlen, total;
- unsigned char *f1, *f2;
- unsigned short *z1, *z2, newz1;
- int freebytes;
-
- if (whichB == 1) {
- f1 = (char *)(hfctmp->fifos + hfc_FIFO_B1TX_F1);
- f2 = (char *)(hfctmp->fifos + hfc_FIFO_B1TX_F2);
- z1 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_B1TX_Z1 + (*f1 * 4));
- z2 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_B1TX_Z2 + (*f1 * 4));
- } else {
- f1 = (char *)(hfctmp->fifos + hfc_FIFO_B2TX_F1);
- f2 = (char *)(hfctmp->fifos + hfc_FIFO_B2TX_F2);
- z1 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_B2TX_Z1 + (*f1 * 4));
- z2 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_B2TX_Z2 + (*f1 * 4));
- }
-
- freebytes = *z2 - *z1;
- if (freebytes <= 0) {
- freebytes += hfc_B_FIFO_SIZE;
- }
- count = DAHDI_CHUNKSIZE;
-
- total = count;
- if (freebytes < count) {
- hfctmp->clicks++;
- /* only spit out this warning once per second to not make things worse! */
- if (hfctmp->clicks > 100) {
- printk(KERN_CRIT "zaphfc: bchan tx fifo full, dropping audio! (z1=%d, z2=%d)\n",*z1,*z2);
- hfctmp->clicks = 0;
- }
- return;
- }
-
- maxlen = (hfc_B_FIFO_SIZE + hfc_B_SUB_VAL) - *z1;
- if (maxlen > count) {
- maxlen = count;
- }
- newz1 = *z1 + total;
- if (newz1 >= (hfc_B_FIFO_SIZE + hfc_B_SUB_VAL)) { newz1 -= hfc_B_FIFO_SIZE; }
+/*===========================================================================*/
- if (whichB == 1) {
- memcpy((char *)(hfctmp->fifos + hfc_FIFO_B1TX_ZOFF + *z1),hfctmp->ztdev->chans[0].writechunk, maxlen);
- } else {
- memcpy((char *)(hfctmp->fifos + hfc_FIFO_B2TX_ZOFF + *z1),hfctmp->ztdev->chans[1].writechunk, maxlen);
- }
-
- count -= maxlen;
- if (count > 0) {
- // Buffer wrap
- if (whichB == 1) {
- memcpy((char *)(hfctmp->fifos + hfc_FIFO_B1TX_ZOFF + hfc_B_SUB_VAL),hfctmp->ztdev->chans[0].writechunk+maxlen, count);
- } else {
- memcpy((char *)(hfctmp->fifos + hfc_FIFO_B2TX_ZOFF + hfc_B_SUB_VAL),hfctmp->ztdev->chans[1].writechunk+maxlen, count);
- }
- }
+#if hfc_B_FIFO_SIZE%DAHDI_CHUNKSIZE
+#error hfc_B_FIFO_SIZE is not a multiple of DAHDI_CHUNKSIZE even though the code assumes this
+#endif
+
+static void hfc_dch_init(struct hfc_card *hfctmp){
+ struct dch *chtmp=&hfctmp->dch;
- *z1 = newz1; /* send it now */
+ chtmp->rx.f1.p=(u8 *)(hfctmp->fifos+hfc_FIFO_DRX_F1);
+ chtmp->rx.f2.v=0x1f;
+ chtmp->rx.f2.z2.v=0x1ff;
-// if (count > 0) printk(KERN_CRIT "zaphfc: bchan tx fifo (f1=%d, f2=%d, z1=%d, z2=%d)\n",(*f1) & hfc_FMASK,(*f2) & hfc_FMASK, *z1, *z2);
- return;
+ chtmp->tx.f1.p=(u8 *)(hfctmp->fifos+hfc_FIFO_DTX_F1);
+ chtmp->tx.f1.v=0x1f;
+ chtmp->tx.f1.z1.v=0x1ff;
+ chtmp->tx.f2.p=(u8 *)(hfctmp->fifos+hfc_FIFO_DTX_F2);
}
-static void hfc_brec(struct hfc_card *hfctmp, char whichB) {
- // we are called with irqs disabled from the irq handler
- int count, maxlen, drop;
- volatile unsigned char *f1, *f2;
- volatile unsigned short *z1, *z2, newz2;
- int bytes = 0;
-
- if (whichB == 1) {
- f1 = (char *)(hfctmp->fifos + hfc_FIFO_B1RX_F1);
- f2 = (char *)(hfctmp->fifos + hfc_FIFO_B1RX_F2);
- z1 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_B1RX_Z1 + (*f1 * 4));
- z2 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_B1RX_Z2 + (*f1 * 4));
- } else {
- f1 = (char *)(hfctmp->fifos + hfc_FIFO_B2RX_F1);
- f2 = (char *)(hfctmp->fifos + hfc_FIFO_B2RX_F2);
- z1 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_B2RX_Z1 + (*f1 * 4));
- z2 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_B2RX_Z2 + (*f1 * 4));
- }
+static void hfc_bch_init(struct hfc_card *hfctmp){
+ struct bch *chtmp=&hfctmp->bch;
- bytes = *z1 - *z2;
- if (bytes < 0) {
- bytes += hfc_B_FIFO_SIZE;
- }
- count = DAHDI_CHUNKSIZE;
-
- if (bytes < DAHDI_CHUNKSIZE) {
-#ifndef RTAITIMING
- printk(KERN_CRIT "zaphfc: bchan rx fifo not enough bytes to receive! (z1=%d, z2=%d, wanted %d got %d), probably a buffer overrun.\n",*z1,*z2,DAHDI_CHUNKSIZE,bytes);
-#endif
- return;
- }
+ chtmp->checkcnt=0;
+ chtmp->fill_fifo=0;
- /* allowing the buffering of hfc_BCHAN_BUFFER bytes of audio data works around irq jitter */
- if (bytes > hfc_BCHAN_BUFFER + DAHDI_CHUNKSIZE) {
- /* if the system is too slow to handle it, we will have to drop it all (except 1 DAHDI chunk) */
- drop = bytes - DAHDI_CHUNKSIZE;
- hfctmp->clicks++;
- /* only spit out this warning once per second to not make things worse! */
- if (hfctmp->clicks > 100) {
- printk(KERN_CRIT "zaphfc: dropped audio (z1=%d, z2=%d, wanted %d got %d, dropped %d).\n",*z1,*z2,count,bytes,drop);
- hfctmp->clicks = 0;
- }
- /* hm, we are processing the b chan data tooooo slowly... let's drop the lost audio */
- newz2 = *z2 + drop;
- if (newz2 >= (hfc_B_FIFO_SIZE + hfc_B_SUB_VAL)) {
- newz2 -= hfc_B_FIFO_SIZE;
- }
- *z2 = newz2;
- }
+ chtmp->rx.c[0].z1p=(unsigned short *)(hfctmp->fifos+hfc_FIFO_B1RX_Z1+0x1f*4);
+ chtmp->rx.c[0].fifo_base=(char *)(hfctmp->fifos+hfc_FIFO_B1RX_ZOFF);
+ chtmp->rx.c[1].z1p=(unsigned short *)(hfctmp->fifos+hfc_FIFO_B2RX_Z1+0x1f*4);
+ chtmp->rx.c[1].fifo_base=(char *)(hfctmp->fifos+hfc_FIFO_B2RX_ZOFF);
+ chtmp->rx.z2=hfc_B_SUB_VAL;
+ chtmp->rx.diff=0;
-
- maxlen = (hfc_B_FIFO_SIZE + hfc_B_SUB_VAL) - *z2;
- if (maxlen > count) {
- maxlen = count;
- }
- if (whichB == 1) {
- memcpy(hfctmp->ztdev->chans[0].readchunk,(char *)(hfctmp->fifos + hfc_FIFO_B1RX_ZOFF + *z2), maxlen);
- } else {
- memcpy(hfctmp->ztdev->chans[1].readchunk,(char *)(hfctmp->fifos + hfc_FIFO_B2RX_ZOFF + *z2), maxlen);
- }
- newz2 = *z2 + count;
- if (newz2 >= (hfc_B_FIFO_SIZE + hfc_B_SUB_VAL)) {
- newz2 -= hfc_B_FIFO_SIZE;
+ chtmp->tx.c[0].z1p=(unsigned short *)(hfctmp->fifos+hfc_FIFO_B1TX_Z1+0x1f*4);
+ chtmp->tx.c[0].z2p=(unsigned short *)(hfctmp->fifos+hfc_FIFO_B1TX_Z2+0x1f*4);
+ chtmp->tx.c[0].fifo_base=(char *)(hfctmp->fifos+hfc_FIFO_B1TX_ZOFF);
+ chtmp->tx.c[0].filled=0;
+ chtmp->tx.c[1].z1p=(unsigned short *)(hfctmp->fifos+hfc_FIFO_B2TX_Z1+0x1f*4);
+ chtmp->tx.c[1].z2p=(unsigned short *)(hfctmp->fifos+hfc_FIFO_B2TX_Z2+0x1f*4);
+ chtmp->tx.c[1].fifo_base=(char *)(hfctmp->fifos+hfc_FIFO_B2TX_ZOFF);
+ chtmp->tx.c[1].filled=0;
+ chtmp->tx.z1=hfc_B_SUB_VAL;
+ chtmp->tx.diff=0;
+
+ hfc_dch_init(hfctmp);
+
+ chtmp->initialized=0;
+}
+
+static int hfc_bch_check(struct hfc_card *hfctmp){
+ struct bch *chtmp=&hfctmp->bch;
+ int x,r;
+
+ for(x=0;x<2;x++){
+ chtmp->tx.c[x].filled=(chtmp->tx.z1-*chtmp->tx.c[x].z2p+hfc_B_FIFO_SIZE)%hfc_B_FIFO_SIZE;
+ chtmp->rx.c[x].filled=(*chtmp->rx.c[x].z1p-chtmp->rx.z2+hfc_B_FIFO_SIZE)%hfc_B_FIFO_SIZE;
}
- *z2 = newz2;
-
- count -= maxlen;
- if (count > 0) {
- // Buffer wrap
- if (whichB == 1) {
- z2 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_B1RX_Z2 + (*f1 * 4));
- memcpy(hfctmp->ztdev->chans[0].readchunk + maxlen,(char *)(hfctmp->fifos + hfc_FIFO_B1RX_ZOFF + hfc_B_SUB_VAL), count);
- } else {
- z2 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_B2RX_Z2 + (*f1 * 4));
- memcpy(hfctmp->ztdev->chans[1].readchunk + maxlen,(char *)(hfctmp->fifos + hfc_FIFO_B2RX_ZOFF + hfc_B_SUB_VAL), count);
- }
- newz2 = *z2 + count;
- if (newz2 >= (hfc_B_FIFO_SIZE + hfc_B_SUB_VAL)) {
- newz2 -= hfc_B_FIFO_SIZE;
+ if(chtmp->fill_fifo){
+ chtmp->checkcnt++;
+ chtmp->checkcnt%=DAHDI_CHUNKSIZE;
+ r=!chtmp->checkcnt;
+ }else{
+ x=chtmp->tx.c[0].filled-chtmp->tx.c[1].filled;
+ if(abs(x-chtmp->tx.diff)>1){
+ printk(KERN_CRIT "zaphfc[%d]: tx sync changed: %d, %d\n",hfctmp->cardno,chtmp->tx.c[0].filled,chtmp->tx.c[1].filled);
+ chtmp->tx.diff=x;
}
+ r=chtmp->tx.c[0].filled<=DAHDI_CHUNKSIZE*jitterbuffer&&chtmp->tx.c[1].filled<=DAHDI_CHUNKSIZE*jitterbuffer;
}
+ return(r);
+}
+#define hfc_bch_inc_z(a,b) (a)=((a)-hfc_B_SUB_VAL+(b))%hfc_B_FIFO_SIZE+hfc_B_SUB_VAL
- if (whichB == 1) {
- dahdi_ec_chunk(&hfctmp->ztdev->chans[0], hfctmp->ztdev->chans[0].readchunk, hfctmp->ztdev->chans[0].writechunk);
- } else {
- dahdi_ec_chunk(&hfctmp->ztdev->chans[1], hfctmp->ztdev->chans[1].readchunk, hfctmp->ztdev->chans[1].writechunk);
+static void hfc_bch_tx(struct hfc_card *hfctmp){
+ struct bch *chtmp=&hfctmp->bch;
+ int x;
+
+ for(x=0;x<2;x++)
+ memcpy((void *)(chtmp->tx.c[x].fifo_base+chtmp->tx.z1),hfctmp->ztdev->chans[x].writechunk,DAHDI_CHUNKSIZE);
+ hfc_bch_inc_z(chtmp->tx.z1,DAHDI_CHUNKSIZE);
+ if(chtmp->fill_fifo){
+ chtmp->fill_fifo--;
+ }else if(chtmp->tx.c[0].filled<=1||chtmp->tx.c[1].filled<=1){
+ chtmp->fill_fifo=jitterbuffer;
+ if(chtmp->initialized)
+ printk(KERN_CRIT "zaphfc[%d]: b channel buffer underrun: %d, %d\n",hfctmp->cardno,chtmp->tx.c[0].filled,chtmp->tx.c[1].filled);
}
- return;
+ if(!chtmp->fill_fifo)
+ for(x=0;x<2;x++)*chtmp->tx.c[x].z1p=chtmp->tx.z1;
}
-
-static void hfc_dtrans(struct hfc_card *hfctmp) {
- // we are called with irqs disabled from the irq handler
+static void hfc_bch_rx(struct hfc_card *hfctmp){
+ struct bch *chtmp=&hfctmp->bch;
int x;
- int count, maxlen, total;
- unsigned char *f1, *f2, newf1;
- unsigned short *z1, *z2, newz1;
- int frames, freebytes;
- if (hfctmp->ztdev->chans[2].bytes2transmit == 0) {
- return;
+ x=chtmp->rx.c[0].filled-chtmp->rx.c[1].filled;
+ if(abs(x-chtmp->rx.diff)>1){
+ printk(KERN_CRIT "zaphfc[%d]: rx sync changed: %d, %d\n",hfctmp->cardno,chtmp->rx.c[0].filled,chtmp->rx.c[1].filled);
+ chtmp->rx.diff=x;
}
-
- f1 = (char *)(hfctmp->fifos + hfc_FIFO_DTX_F1);
- f2 = (char *)(hfctmp->fifos + hfc_FIFO_DTX_F2);
- z1 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_DTX_Z1 + (*f1 * 4));
- z2 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_DTX_Z2 + (*f1 * 4));
-
- frames = (*f1 - *f2) & hfc_FMASK;
- if (frames < 0) {
- frames += hfc_MAX_DFRAMES + 1;
+ if(chtmp->rx.c[0].filled>=DAHDI_CHUNKSIZE&&chtmp->rx.c[1].filled>=DAHDI_CHUNKSIZE){
+ if((chtmp->rx.c[0].filled>=DAHDI_CHUNKSIZE*(jitterbuffer+2)&&chtmp->rx.c[1].filled>=DAHDI_CHUNKSIZE*(jitterbuffer+2))||!chtmp->initialized){
+ if(chtmp->initialized)
+ printk(KERN_CRIT "zaphfc[%d]: b channel buffer overflow: %d, %d\n",hfctmp->cardno,chtmp->rx.c[0].filled,chtmp->rx.c[1].filled);
+ hfc_bch_inc_z(chtmp->rx.z2,chtmp->rx.c[0].filled-chtmp->rx.c[0].filled%DAHDI_CHUNKSIZE-DAHDI_CHUNKSIZE);
+ chtmp->initialized=1;
+ }
+ for(x=0;x<2;x++){
+ memcpy(hfctmp->ztdev->chans[x].readchunk,(void *)(chtmp->rx.c[x].fifo_base+chtmp->rx.z2),DAHDI_CHUNKSIZE);
+ dahdi_ec_chunk(&hfctmp->ztdev->chans[x],hfctmp->ztdev->chans[x].readchunk,hfctmp->ztdev->chans[x].writechunk);
+ }
+ hfc_bch_inc_z(chtmp->rx.z2,DAHDI_CHUNKSIZE);
}
+}
- if (frames >= hfc_MAX_DFRAMES) {
- printk(KERN_CRIT "zaphfc: dchan tx fifo total number of frames exceeded!\n");
- return;
- }
+/*===========================================================================*/
- freebytes = *z2 - *z1;
- if (freebytes <= 0) {
- freebytes += hfc_D_FIFO_SIZE;
- }
- count = hfctmp->ztdev->chans[2].bytes2transmit;
-
- total = count;
- if (freebytes < count) {
- printk(KERN_CRIT "zaphfc: dchan tx fifo not enough free bytes! (z1=%d, z2=%d)\n",*z1,*z2);
- return;
- }
-
- newz1 = (*z1 + count) & hfc_ZMASK;
- newf1 = ((*f1 + 1) & hfc_MAX_DFRAMES) | (hfc_MAX_DFRAMES + 1); // next frame
-
- if (count > 0) {
- if (debug) {
- printk(KERN_CRIT "zaphfc: card %d TX [ ", hfctmp->cardno);
- for (x=0; x<count; x++) {
+static void hfc_dch_tx(struct hfc_card *hfctmp){
+ struct dch *chtmp=&hfctmp->dch;
+ u8 tx_f2_v;
+ u16 x;
+
+ if(hfctmp->ztdev->chans[2].bytes2transmit){
+ if(debug){
+ printk(KERN_CRIT "zaphfc[%d]: card TX [ ",hfctmp->cardno);
+ for(x=0;x<hfctmp->ztdev->chans[2].bytes2transmit;x++){
printk("%#2x ",hfctmp->dtransbuf[x]);
}
- if (hfctmp->ztdev->chans[2].eoftx == 1) {
- printk("] %d bytes\n", count);
- } else {
- printk("..] %d bytes\n", count);
- }
- }
- maxlen = hfc_D_FIFO_SIZE - *z1;
- if (maxlen > count) {
- maxlen = count;
+ printk("] %d bytes\n",hfctmp->ztdev->chans[2].bytes2transmit);
}
- memcpy((char *)(hfctmp->fifos + hfc_FIFO_DTX_ZOFF + *z1),hfctmp->ztdev->chans[2].writechunk, maxlen);
- count -= maxlen;
- if (count > 0) {
- memcpy((char *)(hfctmp->fifos + hfc_FIFO_DTX_ZOFF),(char *)(hfctmp->ztdev->chans[2].writechunk + maxlen), count);
+ tx_f2_v=*chtmp->tx.f2.p;
+ if(!(tx_f2_v-chtmp->tx.f1.v+hfc_MAX_DFRAMES+1-1)&(hfc_MAX_DFRAMES+1-1)){
+ printk(KERN_CRIT "zaphfc[%d]: dchan tx fifo total number of frames exceeded!\n",hfctmp->cardno);
+ }else{
+ if(((*(volatile u16 *)(hfctmp->fifos+hfc_FIFO_DTX_Z2+tx_f2_v*4)-chtmp->tx.f1.z1.v+hfc_D_FIFO_SIZE-1)&(hfc_D_FIFO_SIZE-1))<hfctmp->ztdev->chans[2].bytes2transmit){
+ printk(KERN_CRIT "zaphfc[%d]: dchan tx fifo not enough space for frame!\n",hfctmp->cardno);
+ }else{
+ chtmp->tx.f1.v=((chtmp->tx.f1.v+1)&hfc_MAX_DFRAMES)|(hfc_MAX_DFRAMES+1);
+ x=min(hfctmp->ztdev->chans[2].bytes2transmit,hfc_D_FIFO_SIZE-chtmp->tx.f1.z1.v);
+ memcpy(hfctmp->fifos+hfc_FIFO_DTX_ZOFF+chtmp->tx.f1.z1.v,hfctmp->ztdev->chans[2].writechunk,x);
+ memcpy(hfctmp->fifos+hfc_FIFO_DTX_ZOFF,hfctmp->ztdev->chans[2].writechunk+x,hfctmp->ztdev->chans[2].bytes2transmit-x);
+ *(volatile u16 *)(hfctmp->fifos+hfc_FIFO_DTX_Z2+chtmp->tx.f1.v*4)=chtmp->tx.f1.z1.v;
+ chtmp->tx.f1.z1.v=(chtmp->tx.f1.z1.v+hfctmp->ztdev->chans[2].bytes2transmit+hfc_D_FIFO_SIZE)&(hfc_D_FIFO_SIZE-1);
+ *(volatile u16 *)(hfctmp->fifos+hfc_FIFO_DTX_Z1+chtmp->tx.f1.v*4)=chtmp->tx.f1.z1.v;
+ *chtmp->tx.f1.p=chtmp->tx.f1.v;
+ }
}
}
-
- *z1 = newz1;
-
- if (hfctmp->ztdev->chans[2].eoftx == 1) {
- *f1 = newf1;
- z1 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_DTX_Z1 + (*f1 * 4));
- *z1 = newz1;
- hfctmp->ztdev->chans[2].eoftx = 0;
- }
-// printk(KERN_CRIT "zaphfc: dchan tx fifo (f1=%d, f2=%d, z1=%d, z2=%d)\n",(*f1) & hfc_FMASK,(*f2) & hfc_FMASK, *z1, *z2);
- return;
}
-/* receive a complete hdlc frame, skip broken or short frames */
-static void hfc_drec(struct hfc_card *hfctmp) {
- int count=0, maxlen=0, framelen=0;
- unsigned char *f1, *f2, *crcstat;
- unsigned short *z1, *z2, oldz2, newz2;
+static void hfc_dch_rx(struct hfc_card *hfctmp){
+ struct dch *chtmp=&hfctmp->dch;
+ u16 size;
hfctmp->ztdev->chans[2].bytes2receive=0;
- hfctmp->ztdev->chans[2].eofrx = 0;
-
- /* put the received data into the DAHDI buffer
- we'll call dahdi_receive() later when the timer fires. */
- f1 = (char *)(hfctmp->fifos + hfc_FIFO_DRX_F1);
- f2 = (char *)(hfctmp->fifos + hfc_FIFO_DRX_F2);
-
- if (*f1 == *f2) return; /* nothing received, strange eh? */
-
- z1 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_DRX_Z1 + (*f2 * 4));
- z2 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_DRX_Z2 + (*f2 * 4));
-
- /* calculate length of frame, including 2 bytes CRC and 1 byte STAT */
- count = *z1 - *z2;
-
- if (count < 0) {
- count += hfc_D_FIFO_SIZE; /* ring buffer wrapped */
- }
- count++;
- framelen = count;
-
- crcstat = (char *)(hfctmp->fifos + hfc_FIFO_DRX_ZOFF + *z1);
-
- if ((framelen < 4) || (*crcstat != 0x0)) {
- /* the frame is too short for a valid HDLC frame or the CRC is borked */
- printk(KERN_CRIT "zaphfc: empty HDLC frame or bad CRC received (framelen = %d, stat = %#x, card = %d).\n", framelen, *crcstat, hfctmp->cardno);
- oldz2 = *z2;
- *f2 = ((*f2 + 1) & hfc_MAX_DFRAMES) | (hfc_MAX_DFRAMES + 1); /* NEXT!!! */
- // recalculate z2, because Z2 is a function of F2 Z2(F2) and we INCed F2!!!
- z2 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_DRX_Z2 + (*f2 * 4));
- *z2 = (oldz2 + framelen) & hfc_ZMASK;
- hfctmp->drecinframe = 0;
- hfctmp->regs.int_drec--;
- /* skip short or broken frames */
- hfctmp->ztdev->chans[2].bytes2receive = 0;
- return;
- }
-
- count -= 1; /* strip STAT */
- hfctmp->ztdev->chans[2].eofrx = 1;
-
- if (count + *z2 <= hfc_D_FIFO_SIZE) {
- maxlen = count;
- } else {
- maxlen = hfc_D_FIFO_SIZE - *z2;
+ hfctmp->ztdev->chans[2].eofrx=0;
+ if(*chtmp->rx.f1.p==chtmp->rx.f2.v){
+ hfctmp->regs.int_drec=0;
+ }else{
+ size=((*(volatile u16 *)(hfctmp->fifos+hfc_FIFO_DRX_Z1+chtmp->rx.f2.v*4)-chtmp->rx.f2.z2.v+hfc_D_FIFO_SIZE)&(hfc_D_FIFO_SIZE-1))+1;
+ if(size<4){
+ printk(KERN_CRIT "zaphfc[%d]: empty HDLC frame received.\n",hfctmp->cardno);
+ }else{
+ u16 x=min(size,(u16)(hfc_D_FIFO_SIZE-chtmp->rx.f2.z2.v));
+ memcpy(hfctmp->drecbuf,hfctmp->fifos+hfc_FIFO_DRX_ZOFF+chtmp->rx.f2.z2.v,x);
+ memcpy(hfctmp->drecbuf+x,hfctmp->fifos+hfc_FIFO_DRX_ZOFF,size-x);
+ if(hfctmp->drecbuf[size-1]){
+ printk(KERN_CRIT "zaphfc[%d]: received d channel frame with bad CRC.\n",hfctmp->cardno);
+ }else{
+ hfctmp->ztdev->chans[2].bytes2receive=size-1;
+ hfctmp->ztdev->chans[2].eofrx=1;
+ }
+ }
+ chtmp->rx.f2.z2.v=(chtmp->rx.f2.z2.v+size)&(hfc_D_FIFO_SIZE-1);
+ chtmp->rx.f2.v=((chtmp->rx.f2.v+1)&hfc_MAX_DFRAMES)|(hfc_MAX_DFRAMES+1);
}
-
- /* copy first part */
- memcpy(hfctmp->drecbuf, (char *)(hfctmp->fifos + hfc_FIFO_DRX_ZOFF + *z2), maxlen);
- hfctmp->ztdev->chans[2].bytes2receive += maxlen;
-
- count -= maxlen;
- if (count > 0) {
- /* ring buffer wrapped, copy rest from start of d fifo */
- memcpy(hfctmp->drecbuf + maxlen, (char *)(hfctmp->fifos + hfc_FIFO_DRX_ZOFF), count);
- hfctmp->ztdev->chans[2].bytes2receive += count;
- }
-
- /* frame read */
- oldz2 = *z2;
- newz2 = (oldz2 + framelen) & hfc_ZMASK;
- *f2 = ((*f2 + 1) & hfc_MAX_DFRAMES) | (hfc_MAX_DFRAMES + 1); /* NEXT!!! */
- /* recalculate z2, because Z2 is a function of F2 Z2(F2) and we INCed F2!!! */
- z2 = (unsigned short *)(hfctmp->fifos + hfc_FIFO_DRX_Z2 + (*f2 * 4));
- *z2 = newz2;
- hfctmp->drecinframe = 0;
- hfctmp->regs.int_drec--;
}
-#ifndef RTAITIMING
DAHDI_IRQ_HANDLER(hfc_interrupt) {
struct hfc_card *hfctmp = dev_id;
- unsigned long flags = 0;
- unsigned char stat;
-#else
-static void hfc_service(struct hfc_card *hfctmp) {
-#endif
+ struct hfc_card *hfctmp2;
struct dahdi_hfc *zthfc;
- unsigned char s1, s2, l1state;
+ unsigned char stat, s1, s2, l1state;
+ unsigned long flags = 0;
+ unsigned long flags2 = 0;
int x;
if (!hfctmp) {
-#ifndef RTAITIMING
- return IRQ_NONE;
-#else
- /* rtai */
- return;
-#endif
+ return IRQ_NONE;
}
if (!hfctmp->pci_io) {
printk(KERN_WARNING "%s: IO-mem disabled, cannot handle interrupt\n",
__FUNCTION__);
-#ifndef RTAITIMING
return IRQ_NONE;
-#else
- /* rtai */
- return;
-#endif
}
- /* we assume a few things in this irq handler:
- - the hfc-pci will only generate "timer" irqs (proc/non-proc)
- - we need to use every 8th IRQ (to generate 1khz timing)
- OR
- - if we use rtai for timing the hfc-pci will not generate ANY irq,
- instead rtai will call this "fake" irq with a 1khz realtime timer. :)
- - rtai will directly service the card, not like it used to by triggering
- the linux irq
- */
-
-#ifndef RTAITIMING
spin_lock_irqsave(&hfctmp->lock, flags);
stat = hfc_inb(hfctmp, hfc_STATUS);
-
if ((stat & hfc_STATUS_ANYINT) == 0) {
// maybe we are sharing the irq
spin_unlock_irqrestore(&hfctmp->lock,flags);
return IRQ_NONE;
}
-#endif
s1 = hfc_inb(hfctmp, hfc_INT_S1);
s2 = hfc_inb(hfctmp, hfc_INT_S2);
@@ -611,18 +457,10 @@
}
switch (l1state) {
case 3:
-#ifdef RTAITIMING
- sprintf(zthfc->span.desc, "HFC-S PCI A ISDN card %d [NT] layer 1 ACTIVATED (G%d) [realtime]", hfctmp->cardno, l1state);
-#else
sprintf(zthfc->span.desc, "HFC-S PCI A ISDN card %d [NT] layer 1 ACTIVATED (G%d)", hfctmp->cardno, l1state);
-#endif
break;
default:
-#ifdef RTAITIMING
- sprintf(zthfc->span.desc, "HFC-S PCI A ISDN card %d [NT] layer 1 DEACTIVATED (G%d) [realtime]", hfctmp->cardno, l1state);
-#else
sprintf(zthfc->span.desc, "HFC-S PCI A ISDN card %d [NT] layer 1 DEACTIVATED (G%d)", hfctmp->cardno, l1state);
-#endif
}
if (l1state == 2) {
hfc_outb(hfctmp, hfc_STATES, hfc_STATES_ACTIVATE | hfc_STATES_DO_ACTION | hfc_STATES_NT_G2_G3);
@@ -636,18 +474,10 @@
}
switch (l1state) {
case 7:
-#ifdef RTAITIMING
- sprintf(zthfc->span.desc, "HFC-S PCI A ISDN card %d [TE] layer 1 ACTIVATED (F%d) [realtime]", hfctmp->cardno, l1state);
-#else
sprintf(zthfc->span.desc, "HFC-S PCI A ISDN card %d [TE] layer 1 ACTIVATED (F%d)", hfctmp->cardno, l1state);
-#endif
break;
default:
-#ifdef RTAITIMING
- sprintf(zthfc->span.desc, "HFC-S PCI A ISDN card %d [TE] layer 1 DEACTIVATED (F%d) [realtime]", hfctmp->cardno, l1state);
-#else
sprintf(zthfc->span.desc, "HFC-S PCI A ISDN card %d [TE] layer 1 DEACTIVATED (F%d)", hfctmp->cardno, l1state);
-#endif
}
if (l1state == 3) {
hfc_outb(hfctmp, hfc_STATES, hfc_STATES_DO_ACTION | hfc_STATES_ACTIVATE);
@@ -657,7 +487,7 @@
}
if (s1 & hfc_INTS_DREC) {
// D chan RX (bit 5)
- hfctmp->regs.int_drec++;
+ hfctmp->regs.int_drec = 1;
// mr. zapata there is something for you!
// printk(KERN_CRIT "d chan rx\n");
}
@@ -678,14 +508,10 @@
// B1 chan TX (bit 0)
}
}
-#ifdef RTAITIMING
- /* fake an irq */
- s2 |= hfc_M2_PROC_TRANS;
-#endif
if (s2 != 0) {
if (s2 & hfc_M2_PMESEL) {
// kaboom irq (bit 7)
- printk(KERN_CRIT "zaphfc: sync lost, pci performance too low. you might have some cpu throtteling enabled.\n");
+ //printk(KERN_CRIT "zaphfc: sync lost, pci performance too low. you might have some cpu throtteling enabled.\n");
}
if (s2 & hfc_M2_GCI_MON_REC) {
// RxR monitor channel (bit 2)
@@ -693,32 +519,31 @@
if (s2 & hfc_M2_GCI_I_CHG) {
// GCI I-change (bit 1)
}
- if (s2 & hfc_M2_PROC_TRANS) {
+ if((s2&hfc_M2_PROC_TRANS)&&(hfctmp->cardno==timer_card)){
// processing/non-processing transition (bit 0)
- hfctmp->ticks++;
-#ifndef RTAITIMING
- if (hfctmp->ticks > 7) {
- // welcome to DAHDI timing :)
-#endif
- hfctmp->ticks = 0;
-
- if (hfctmp->ztdev->span.flags & DAHDI_FLAG_RUNNING) {
+ hfctmp2=hfctmp;
+ hfctmp=hfc_dev_list;
+ while(hfctmp){
+ if(hfctmp->active){
+ if(hfctmp!=hfctmp2)spin_lock_irqsave(&hfctmp->lock, flags2);
+ if(hfc_bch_check(hfctmp)){
+ if (hfctmp->ztdev->span.flags & DAHDI_FLAG_RUNNING) {
// clear dchan buffer
+ // memset(hfctmp->drecbuf, 0x0, sizeof(hfctmp->drecbuf));
+
hfctmp->ztdev->chans[2].bytes2transmit = 0;
hfctmp->ztdev->chans[2].maxbytes2transmit = hfc_D_FIFO_SIZE;
dahdi_transmit(&(hfctmp->ztdev->span));
- hfc_btrans(hfctmp,1);
- hfc_btrans(hfctmp,2);
- hfc_dtrans(hfctmp);
+ hfc_bch_tx(hfctmp);
+ hfc_dch_tx(hfctmp);
}
- hfc_brec(hfctmp,1);
- hfc_brec(hfctmp,2);
- if (hfctmp->regs.int_drec > 0) {
+ hfc_bch_rx(hfctmp);
+ if (hfctmp->regs.int_drec) {
// dchan data to read
- hfc_drec(hfctmp);
+ hfc_dch_rx(hfctmp);
if (hfctmp->ztdev->chans[2].bytes2receive > 0) {
if (debug) {
printk(KERN_CRIT "zaphfc: card %d RX [ ", hfctmp->cardno);
@@ -743,17 +568,16 @@
if (hfctmp->ztdev->span.flags & DAHDI_FLAG_RUNNING) {
dahdi_receive(&(hfctmp->ztdev->span));
}
-
-#ifndef RTAITIMING
}
-#endif
+ if(hfctmp!=hfctmp2)spin_unlock_irqrestore(&hfctmp->lock,flags2);
+ }
+ hfctmp=hfctmp->next;
+ }
+ hfctmp=hfctmp2;
}
-
}
-#ifndef RTAITIMING
spin_unlock_irqrestore(&hfctmp->lock,flags);
- return IRQ_RETVAL(1);
-#endif
+ return IRQ_RETVAL(1);
}
@@ -802,22 +626,22 @@
}
alreadyrunning = span->flags & DAHDI_FLAG_RUNNING;
- if (!alreadyrunning) {
- span->chans[2]->flags &= ~DAHDI_FLAG_HDLC;
- span->chans[2]->flags |= DAHDI_FLAG_BRIDCHAN;
-
- span->flags |= DAHDI_FLAG_RUNNING;
+ if (alreadyrunning) return 0;
- hfctmp->ticks = -2;
- hfctmp->clicks = 0;
- hfctmp->regs.fifo_en = hfc_FIFOEN_D | hfc_FIFOEN_B1 | hfc_FIFOEN_B2;
- hfc_outb(hfctmp, hfc_FIFO_EN, hfctmp->regs.fifo_en);
- } else {
- return 0;
- }
+ span->chans[2]->flags &= ~DAHDI_FLAG_HDLC;
+ span->chans[2]->flags |= DAHDI_FLAG_BRIDCHAN;
+
+ span->flags |= DAHDI_FLAG_RUNNING;
+
+ hfctmp->ticks = -2;
+ hfctmp->regs.fifo_en = hfc_FIFOEN_D | hfc_FIFOEN_B1 | hfc_FIFOEN_B2;
+ hfc_outb(hfctmp, hfc_FIFO_EN, hfctmp->regs.fifo_en);
+
+ hfc_bch_init(hfctmp);
// drivers, start engines!
hfc_outb(hfctmp, hfc_STATES, hfc_STATES_DO_ACTION | hfc_STATES_ACTIVATE);
+ hfctmp->active=1;
return 0;
}
@@ -847,17 +671,9 @@
sprintf(zthfc->span.name, "ZTHFC%d", hfc_dev_count + 1);
if (hfctmp->regs.nt_mode == 1) {
-#ifdef RTAITIMING
- sprintf(zthfc->span.desc, "HFC-S PCI A ISDN card %d [NT] [realtime]", hfc_dev_count + 1);
-#else
sprintf(zthfc->span.desc, "HFC-S PCI A ISDN card %d [NT]", hfc_dev_count + 1);
-#endif
} else {
-#ifdef RTAITIMING
- sprintf(zthfc->span.desc, "HFC-S PCI A ISDN card %d [TE] [realtime]", hfc_dev_count + 1);
-#else
sprintf(zthfc->span.desc, "HFC-S PCI A ISDN card %d [TE]", hfc_dev_count + 1);
-#endif
}
zthfc->span.spanconfig = zthfc_spanconfig;
@@ -897,32 +713,6 @@
return 0;
}
-#ifdef RTAITIMING
-#define TICK_PERIOD 1000000
-#define TICK_PERIOD2 1000000000
-#define TASK_PRIORITY 1
-#define STACK_SIZE 10000
-
-static RT_TASK rt_task;
-static struct hfc_card *rtai_hfc_list[hfc_MAX_CARDS];
-static unsigned char rtai_hfc_counter = 0;
-
-static void rtai_register_hfc(struct hfc_card *hfctmp) {
- rtai_hfc_list[rtai_hfc_counter++] = hfctmp;
-}
-
-static void rtai_loop(int t) {
- int i=0;
- for (;;) {
- for (i=0; i < rtai_hfc_counter; i++) {
- if (rtai_hfc_list[i] != NULL)
- hfc_service(rtai_hfc_list[i]);
- }
- rt_task_wait_period();
- }
-}
-#endif
-
int hfc_findCards(int pcivendor, int pcidevice, char *vendor_name, char *card_name) {
struct pci_dev *tmp;
struct hfc_card *hfctmp = NULL;
@@ -938,9 +728,9 @@
}
pci_set_master(tmp);
- hfctmp = kmalloc(sizeof(struct hfc_card), GFP_KERNEL);
+ hfctmp = vmalloc(sizeof(struct hfc_card));
if (!hfctmp) {
- printk(KERN_WARNING "zaphfc: unable to kmalloc!\n");
+ printk(KERN_WARNING "zaphfc: unable to vmalloc!\n");
pci_disable_device(tmp);
multi_hfc = NULL;
return -ENOMEM;
@@ -948,6 +738,7 @@
memset(hfctmp, 0x0, sizeof(struct hfc_card));
spin_lock_init(&hfctmp->lock);
+ hfctmp->active=0;
hfctmp->pcidev = tmp;
hfctmp->pcibus = tmp->bus->number;
hfctmp->pcidevfn = tmp->devfn;
@@ -961,49 +752,39 @@
hfctmp->pci_io = (char *) tmp->resource[1].start;
if (!hfctmp->pci_io) {
printk(KERN_WARNING "zaphfc: no iomem!\n");
- kfree(hfctmp);
+ vfree(hfctmp);
pci_disable_device(tmp);
multi_hfc = NULL;
return -1;
}
-
- hfctmp->fifomem = kmalloc(65536, GFP_KERNEL);
- if (!hfctmp->fifomem) {
- printk(KERN_WARNING "zaphfc: unable to kmalloc fifomem!\n");
- kfree(hfctmp);
+
+ hfctmp->fifos=(void *)__get_free_pages(GFP_KERNEL,log2(hfc_FIFO_MEM_SIZE_PAGES));
+ if (!hfctmp->fifos) {
+ printk(KERN_WARNING "zaphfc: unable to __get_free_pages fifomem!\n");
+ vfree(hfctmp);
pci_disable_device(tmp);
multi_hfc = NULL;
return -ENOMEM;
} else {
- memset(hfctmp->fifomem, 0x0, 65536);
- hfctmp->fifos = (void *)(((ulong) hfctmp->fifomem) & ~0x7FFF) + 0x8000;
pci_write_config_dword(hfctmp->pcidev, 0x80, (u_int) virt_to_bus(hfctmp->fifos));
hfctmp->pci_io = ioremap((ulong) hfctmp->pci_io, 256);
}
-#ifdef RTAITIMING
- /* we need no stinking irq */
- hfctmp->irq = 0;
-#else
if (request_irq(hfctmp->irq, &hfc_interrupt, DAHDI_IRQ_SHARED, "zaphfc", hfctmp)) {
printk(KERN_WARNING "zaphfc: unable to register irq\n");
- kfree(hfctmp->fifomem);
- kfree(hfctmp);
+ free_pages((unsigned long)hfctmp->fifos,log2(hfc_FIFO_MEM_SIZE_PAGES));
+ vfree(hfctmp);
iounmap((void *) hfctmp->pci_io);
pci_disable_device(tmp);
multi_hfc = NULL;
return -EIO;
}
-#endif
-#ifdef RTAITIMING
- rtai_register_hfc(hfctmp);
-#endif
printk(KERN_INFO
- "zaphfc: %s %s configured at mem %lx fifo %lx(%#x) IRQ %d HZ %d\n",
+ "zaphfc: %s %s configured at mem %#x fifo %#x(%#x) IRQ %d HZ %d\n",
vendor_name, card_name,
- (unsigned long) hfctmp->pci_io,
- (unsigned long) hfctmp->fifos,
+ (u_int) hfctmp->pci_io,
+ (u_int) hfctmp->fifos,
(u_int) virt_to_bus(hfctmp->fifos),
hfctmp->irq, HZ);
pci_write_config_word(hfctmp->pcidev, PCI_COMMAND, PCI_COMMAND_MEMORY); // enable memio
@@ -1020,11 +801,21 @@
hfctmp->regs.nt_mode = 0;
}
- zthfc = kmalloc(sizeof(struct dahdi_hfc),GFP_KERNEL);
+ if(sync_slave&(1<<hfc_dev_count)){
+ printk(KERN_INFO "zaphfc: Card %d configured for slave mode\n",hfc_dev_count);
+ hfctmp->regs.mst_mode=hfc_MST_MODE_SLAVE|hfc_MST_MODE_F0_LONG_DURATION;
+ hfctmp->regs.mst_emod=hfc_MST_EMOD_SLOW_CLOCK_ADJ;
+ }else{
+ printk(KERN_INFO "zaphfc: Card %d configured for master mode\n",hfc_dev_count);
+ hfctmp->regs.mst_mode=hfc_MST_MODE_MASTER|hfc_MST_MODE_F0_LONG_DURATION;
+ hfctmp->regs.mst_emod=0;
+ }
+
+ zthfc = vmalloc(sizeof(struct dahdi_hfc));
if (!zthfc) {
- printk(KERN_CRIT "zaphfc: unable to kmalloc!\n");
+ printk(KERN_CRIT "zaphfc: unable to vmalloc!\n");
hfc_shutdownCard(hfctmp);
- kfree(hfctmp);
+ vfree(hfctmp);
multi_hfc = NULL;
return -ENOMEM;
}
@@ -1050,7 +841,6 @@
memset(hfctmp->btransbuf[1], 0x0, sizeof(hfctmp->btransbuf[1]));
hfctmp->ztdev->chans[1].writechunk = hfctmp->btransbuf[1];
-
hfc_registerCard(hfctmp);
hfc_resetCard(hfctmp);
tmp = pci_get_device(pcivendor, pcidevice, multi_hfc);
@@ -1058,58 +848,42 @@
return 0;
}
-
-
int init_module(void) {
int i = 0;
-#ifdef RTAITIMING
- RTIME tick_period;
- for (i=0; i < hfc_MAX_CARDS; i++) {
- rtai_hfc_list[i] = NULL;
+ if(jitterbuffer<1){
+ printk(KERN_INFO "zaphfc: invalid jitterbuffer size specified: %d - changing to minimum of 1\n",jitterbuffer);
+ jitterbuffer=1;
+ }else if(jitterbuffer>500){
+ printk(KERN_INFO "zaphfc: invalid jitterbuffer size specified: %d - changing to maximum of 500\n",jitterbuffer);
+ jitterbuffer=500;
}
- rt_set_periodic_mode();
-#endif
- i = 0;
+ printk(KERN_INFO "zaphfc: jitterbuffer size: %d\n",jitterbuffer);
while (id_list[i].vendor_id) {
multi_hfc = NULL;
hfc_findCards(id_list[i].vendor_id, id_list[i].device_id, id_list[i].vendor_name, id_list[i].card_name);
i++;
}
-#ifdef RTAITIMING
- for (i=0; i < hfc_MAX_CARDS; i++) {
- if (rtai_hfc_list[i]) {
- printk(KERN_INFO
- "zaphfc: configured %d at mem %#x fifo %#x(%#x) for realtime servicing\n",
- rtai_hfc_list[i]->cardno,
- (u_int) rtai_hfc_list[i]->pci_io,
- (u_int) rtai_hfc_list[i]->fifos,
- (u_int) virt_to_bus(rtai_hfc_list[i]->fifos));
-
- }
- }
- rt_task_init(&rt_task, rtai_loop, 1, STACK_SIZE, TASK_PRIORITY, 0, 0);
- tick_period = start_rt_timer(nano2count(TICK_PERIOD));
- rt_task_make_periodic(&rt_task, rt_get_time() + tick_period, tick_period);
-#endif
printk(KERN_INFO "zaphfc: %d hfc-pci card(s) in this box.\n", hfc_dev_count);
return 0;
}
void cleanup_module(void) {
struct hfc_card *tmpcard;
-#ifdef RTAITIMING
- stop_rt_timer();
- rt_task_delete(&rt_task);
-#endif
+
printk(KERN_INFO "zaphfc: stop\n");
// spin_lock(®isterlock);
+ tmpcard=hfc_dev_list;
+ while(tmpcard){
+ hfc_shutdownCard1(tmpcard);
+ tmpcard=tmpcard->next;
+ }
while (hfc_dev_list != NULL) {
if (hfc_dev_list == NULL) break;
- hfc_shutdownCard(hfc_dev_list);
+ hfc_shutdownCard2(hfc_dev_list);
tmpcard = hfc_dev_list;
hfc_dev_list = hfc_dev_list->next;
if (tmpcard != NULL) {
- kfree(tmpcard);
+ vfree(tmpcard);
tmpcard = NULL;
printk(KERN_INFO "zaphfc: freed one card.\n");
}
@@ -1119,8 +893,11 @@
#endif
-module_param(modes, int, 0600);
+module_param(modes, int, 0400);
module_param(debug, int, 0600);
+module_param(sync_slave, int, 0400);
+module_param(timer_card, int, 0400);
+module_param(jitterbuffer, int, 0400);
MODULE_DESCRIPTION("HFC-S PCI A Zaptel Driver");
MODULE_AUTHOR("Klaus-Peter Junghanns <kpj@junghanns.net>");