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added 125us irq to clock ztdummy from zaptel, so they can be synchronized from our hfc chip and finally from the ISDN line. to enable this you need to add timer=1 as modparm to hfcmulti

This commit is contained in:
Chrisian Richter 2007-01-23 15:01:40 +00:00
parent b6351ddb11
commit 6e6702b4df
1 changed files with 41 additions and 1 deletions
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42
drivers/isdn/hardware/mISDN/hfc_multi.c
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@ -137,6 +137,11 @@ static mISDNobject_t HFCM_obj;
static char HFCName[] = "HFC_multi";
extern void ztdummy_extern_interrupt(void);
static void (* hfc_interrupt)(void);
extern void ztdummy_register_interrupt(void);
static void (* register_interrupt)(void);
/* table entry in the PCI devices list */
typedef struct {
int vendor_id;
@ -243,6 +248,7 @@ static u_int protocol[MAX_PORTS];
static int layermask[MAX_PORTS];
static int debug;
static int poll;
static int timer;
#ifdef MODULE
@ -253,6 +259,7 @@ MODULE_LICENSE("GPL");
#ifdef OLD_MODULE_PARAM
MODULE_PARM(debug, "1i");
MODULE_PARM(poll, "1i");
MODULE_PARM(timer, "1i");
#define MODULE_PARM_T "1-128i"
MODULE_PARM(protocol, MODULE_PARM_T);
MODULE_PARM(layermask, MODULE_PARM_T);
@ -261,6 +268,7 @@ MODULE_PARM(pcm, MODULE_PARM_T);
#else
module_param(debug, uint, S_IRUGO | S_IWUSR);
module_param(poll, uint, S_IRUGO | S_IWUSR);
module_param(timer, uint, S_IRUGO | S_IWUSR);
#ifdef OLD_MODULE_PARAM_ARRAY
@ -854,6 +862,16 @@ init_chip(hfc_multi_t *hc)
HFC_outb(hc, R_TI_WD, poll_timer);
hc->hw.r_irqmsk_misc |= V_TI_IRQMSK;
/* set up 125us interrupt, only if function pointer is available
and module parameter timer is set */
if (timer!=0 && hfc_interrupt && register_interrupt) {
/* only one chip should use this interrupt */
timer = 0;
hc->hw.r_irqmsk_misc |= V_PROC_IRQMSK;
/* deactivate other interrupts in ztdummy */
register_interrupt();
}
/* set E1 state machine IRQ */
if (hc->type == 1)
hc->hw.r_irqmsk_misc |= V_STA_IRQMSK;
@ -1845,6 +1863,7 @@ hfcmulti_interrupt(int intno, void *dev_id, struct pt_regs *regs)
#ifdef IRQCOUNT_DEBUG
static int iq1=0,iq2=0,iq3=0,iq4=0,iq5=0,iq6=0,iqcnt=0;
#endif
static int count=0;
hfc_multi_t *hc = dev_id;
channel_t *chan;
u_char r_irq_statech, status, r_irq_misc, r_irq_oview, r_irq_fifo_bl;
@ -1965,6 +1984,17 @@ hfcmulti_interrupt(int intno, void *dev_id, struct pt_regs *regs)
/* -> DTMF IRQ */
hfcmulti_dtmf(hc);
}
if (r_irq_misc & V_IRQ_PROC) {
/* IRQ every 125us */
count++;
/* generate 1kHz signal */
if(count==8) {
if (hfc_interrupt)
hfc_interrupt();
count = 0;
}
}
}
if (status & V_FR_IRQSTA) {
/* FIFO IRQ */
@ -4162,9 +4192,9 @@ static int __devinit hfcpci_probe(struct pci_dev *pdev, const struct pci_device_
else
chan = hc->chan[(pt<<2)+2].ch;
if ((ret_err = mISDN_ctrl(NULL, MGR_NEWSTACK | REQUEST, &chan->inst))) {
int i=0;
printk(KERN_ERR "MGR_ADDSTACK REQUEST dch err(%d)\n", ret_err);
int i=0;
free_release:
/* all ports, hc is free */
for (i=0; i<hc->ports; i++)
@ -4344,6 +4374,13 @@ HFCmulti_cleanup(void)
mISDN_module_unregister(THIS_MODULE);
/* unload interrupt function symbol*/
if (hfc_interrupt) {
symbol_put(ztdummy_extern_interrupt);
}
if (register_interrupt) {
symbol_put(ztdummy_register_interrupt);
}
/* unregister mISDN object */
if (debug & DEBUG_HFCMULTI_INIT)
printk(KERN_DEBUG "%s: entered (refcnt = %d HFC_cnt = %d)\n", __FUNCTION__, HFCM_obj.refcnt, HFC_cnt);
@ -4393,6 +4430,9 @@ HFCmulti_init(void)
#error "not running on big endian machines now"
#endif
strcpy(tmpstr, hfcmulti_revision);
/* get interrupt function pointer */
hfc_interrupt = symbol_get(ztdummy_extern_interrupt);
register_interrupt = symbol_get(ztdummy_register_interrupt);
printk(KERN_INFO "mISDN: HFC-multi driver Rev. %s\n", mISDN_getrev(tmpstr));
switch(poll) {