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| author | simokawa <simokawa@FreeBSD.org> | 2007-04-30 12:38:50 +0000 |
|---|---|---|
| committer | simokawa <simokawa@FreeBSD.org> | 2007-04-30 12:38:50 +0000 |
| commit | 28a59d2af66983e458924f52236e0459b03075cf (patch) | |
| tree | 45d30455ee2c794d785001be5de1119459e3d389 /sys/dev/firewire/fwohci.c | |
| parent | 48d173f859228ffcbd274502a824767b08a302a5 (diff) | |
| download | FreeBSD-src-28a59d2af66983e458924f52236e0459b03075cf.zip FreeBSD-src-28a59d2af66983e458924f52236e0459b03075cf.tar.gz | |
MFp4: Add a sysctl knob to disable cycle master mode and add some comments.
MFC after: 1 week
Diffstat (limited to 'sys/dev/firewire/fwohci.c')
| -rw-r--r-- | sys/dev/firewire/fwohci.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sys/dev/firewire/fwohci.c b/sys/dev/firewire/fwohci.c index b44862d..18d31b6 100644 --- a/sys/dev/firewire/fwohci.c +++ b/sys/dev/firewire/fwohci.c @@ -47,6 +47,7 @@ #include <sys/mbuf.h> #include <sys/malloc.h> #include <sys/sockio.h> +#include <sys/sysctl.h> #include <sys/bus.h> #include <sys/kernel.h> #include <sys/conf.h> @@ -76,6 +77,11 @@ #undef OHCI_DEBUG +static int nocyclemaster = 0; +SYSCTL_DECL(_hw_firewire); +SYSCTL_INT(_hw_firewire, OID_AUTO, nocyclemaster, CTLFLAG_RW, &nocyclemaster, 0, + "Do not send cycle start packets"); + static char dbcode[16][0x10]={"OUTM", "OUTL","INPM","INPL", "STOR","LOAD","NOP ","STOP",}; @@ -1900,8 +1906,10 @@ busresetout: /* Allow async. request to us */ OWRITE(sc, OHCI_AREQHI, 1 << 31); /* XXX insecure ?? */ + /* allow from all nodes */ OWRITE(sc, OHCI_PREQHI, 0x7fffffff); OWRITE(sc, OHCI_PREQLO, 0xffffffff); + /* 0 to 4GB regison */ OWRITE(sc, OHCI_PREQUPPER, 0x10000); /* Set ATRetries register */ OWRITE(sc, OHCI_ATRETRY, 1<<(13+16) | 0xfff); @@ -1922,7 +1930,7 @@ busresetout: /* cycle timer */ sc->cycle_lost = 0; OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_CYC_LOST); - if (node_id & OHCI_NODE_ROOT) { + if ((node_id & OHCI_NODE_ROOT) && !nocyclemaster) { printf("CYCLEMASTER mode\n"); OWRITE(sc, OHCI_LNKCTL, OHCI_CNTL_CYCMTR | OHCI_CNTL_CYCTIMER); |
