diff options
| author | Matthew Fredrickson <creslin@digium.com> | 2010-06-30 20:23:24 +0000 |
|---|---|---|
| committer | Matthew Fredrickson <creslin@digium.com> | 2010-06-30 20:23:24 +0000 |
| commit | 6895cb097ce32fffe7a8995fae3598b7864da59d (patch) | |
| tree | 885a8a40ca0369e6efaae4ebda7be5f6f488e068 /drivers/dahdi/wct4xxp | |
| parent | e421d2712f10b1bff80ac63a441f4513dd6a9260 (diff) | |
Fix for circumstances where the framer needs extra help to reset itself.
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@8841 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Diffstat (limited to 'drivers/dahdi/wct4xxp')
| -rw-r--r-- | drivers/dahdi/wct4xxp/base.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/dahdi/wct4xxp/base.c b/drivers/dahdi/wct4xxp/base.c index 421fbad..de20706 100644 --- a/drivers/dahdi/wct4xxp/base.c +++ b/drivers/dahdi/wct4xxp/base.c @@ -176,6 +176,7 @@ static int alarmdebounce = 2500; /* LOF/LFA def to 2.5s AT&T TR54016*/ static int losalarmdebounce = 2500;/* LOS def to 2.5s AT&T TR54016*/ static int aisalarmdebounce = 2500;/* AIS(blue) def to 2.5s AT&T TR54016*/ static int yelalarmdebounce = 500;/* RAI(yellow) def to 0.5s AT&T devguide */ +static int extendedreset = 0; #ifdef VPM_SUPPORT static int vpmsupport = 1; /* If set to auto, vpmdtmfsupport is enabled for VPM400M and disabled for VPM450M */ @@ -4017,6 +4018,33 @@ static void t4_tsi_unassign(struct t4 *wc, int tospan, int tochan) spin_unlock_irqrestore(&wc->reglock, flags); } +static void t4_extended_reset(struct t4 *wc) +{ + unsigned int oldreg = t4_pci_in(wc, 0x4); + + udelay(1000); + + t4_pci_out(wc, 0x4, 0x42000000); + t4_pci_out(wc, 0xa, 0x42000000); + t4_pci_out(wc, 0xa, 0x00080000); + t4_pci_out(wc, 0xa, 0x00080000); + t4_pci_out(wc, 0xa, 0x00080000); + t4_pci_out(wc, 0xa, 0x00180000); + t4_pci_out(wc, 0xa, 0x00080000); + t4_pci_out(wc, 0xa, 0x00180000); + t4_pci_out(wc, 0xa, 0x00080000); + t4_pci_out(wc, 0xa, 0x00180000); + t4_pci_out(wc, 0xa, 0x00080000); + t4_pci_out(wc, 0xa, 0x00180000); + t4_pci_out(wc, 0xa, 0x00080000); + t4_pci_out(wc, 0xa, 0x00180000); + t4_pci_out(wc, 0xa, 0x00080000); + t4_pci_out(wc, 0xa, 0x00180000); + t4_pci_out(wc, 0x4, oldreg); + + udelay(1000); +} + static int t4_hardware_init_1(struct t4 *wc, unsigned int cardflags) { unsigned int version; @@ -4027,6 +4055,11 @@ static int t4_hardware_init_1(struct t4 *wc, unsigned int cardflags) printk(KERN_INFO "TE%dXXP running with work queues.\n", wc->numspans); #endif + if (extendedreset) { + t4_extended_reset(wc); + } + + /* Make sure DMA engine is not running and interrupts are acknowledged */ wc->dmactrl = 0x0; t4_pci_out(wc, WC_DMACTRL, wc->dmactrl); @@ -4522,6 +4555,7 @@ module_param(j1mode, int, 0600); module_param(sigmode, int, 0600); module_param(latency, int, 0600); module_param(ms_per_irq, int, 0600); +module_param(extendedreset, int, 0600); #ifdef VPM_SUPPORT module_param(vpmsupport, int, 0600); module_param(vpmdtmfsupport, int, 0600); |