hi
Days ago i sent to misc@ a problem with write uhid0 [1], uhid0 has
connected to an
I/O card.
Later, after found dev/usb/TODO, move to ugen driver.
i test 3 programs:
w.c
-------------------------------------------------------------------------------
int
main(void)
{
int fd;
int ret;
u_char buff[21];
fd = open("/dev/ugen0.01", O_RWONLY);
ret = write(fd, buff, sizeof(buff));
if (ret != 21)
err(1, NULL);
}
-----------------------------------------------------------------------------------
w.c work ok, send correct data and I/O card work ok
r.c
-------------------------------------------------------------------------------
int
main(void)
{
int fd;
int ret;
u_char buff[31];
fd = open("/dev/ugen0.01", O_RDONLY);
ret = read(fd, buff, sizeof(buff));
if (ret != 31)
err(1, NULL);
}
-----------------------------------------------------------------------------------
r.c work ok, receive correct data from I/O card
rloop.c
---------------------------------------------------------------------------
int
main(void)
{
u_char buff[31];
int fd;
long ret;
int i = 0;
int c = 1;
fd = open("/dev/ugen0.01", O_RDONLY);
if (fd == -1)
err(1, NULL);
while (!usleep(1000000)) {
bzero(buff, sizeof(buff));
ret = read(fd, buff, sizeof(buff));
if (ret != 31)
err(1, NULL);
printf("%02i:", c);
for (i = 0; i < sizeof(buff); i++)
printf(" %02x", buff[i]);
printf("\n");
c++;
}
}
-----------------------------------------------------------------------------------
rloop.c work ok until c = 32.
rloop
-----------------------------------------------------------------------------
01: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
02: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
03: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
04: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
05: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
06: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
07: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
08: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
09: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
10: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
11: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
12: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
13: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
14: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
15: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
16: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
17: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
18: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
19: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
20: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
21: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
22: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
23: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
24: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
25: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
26: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
27: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
28: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
29: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
30: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
31: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
32: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 00 00 01
33: 0d 16 64 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f
ff 0f ff 0f 00 00 0d 16 64
34: 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f ff
0f 00 00 00 00 01 0d 16 64
.
.
XX: 39 39 0d 16 64 ff 00 ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f ff 0f ff
0f 00 00 00 00 01 0d 16 64
-----------------------------------------------------------------------------------
line 01: data ok.
.
.
line 32: data ok.
line 33: data with last 3 bad u_char ( first 3 from c_cs )
line 34: q_to_b() return moved data
ugenopen() call clalloc() with UGEN_IBSIZE to malloc sce->q.c_cs,
1020-31*33 = -3
I think they are 2 problems with q_to_b() and b_to_q() usage in the
ugen interrupt
driver when read(2) is called from a loop.
1.- q_to_b() return moved data:
At first read(2), c_cc == 0, b_to_q() build c_cs.
But when c_cc == 992 (31*32) c_cs can only save 28 u_char more.
33rd read(2) implies q_to_b() buffer return with (28 u_char ok) last 3
u_char bad
(from 3 first c_cs).
the following q_to_b() return moved data (c_cf +3 addr)
2.- c_cs is outdated:
ugen_do_read() call q_to_b() before b_to_q(), this implies return
buffer is old.
To get recent I/O card changes i need call +33 read(2) (loop on c_cs).
a probable solution? (i'm not a C/kernel/usb professional)
I include ndflush(&sce->q, sce->q.c_cc) at ugen_do_read() to fix this error in
rloop.c - (rebuild c_cs at every read(2))
--- /sys/dev/usb/ugen.c.orig Tue Feb 8 10:23:39 2011
+++ /sys/dev/usb/ugen.c Tue Feb 8 10:24:25 2011
@@ -508,6 +508,7 @@
switch (sce->edesc->bmAttributes & UE_XFERTYPE) {
case UE_INTERRUPT:
+ ndflush(&sce->q, sce->q.c_cc);
/* Block until activity occurred. */
s = splusb();
while (sce->q.c_cc == 0) {
thanks for your time
E.
[1]: http://marc.info/?l=openbsd-misc&m=126647415831421&w=2
dmesg:
OpenBSD 4.9-beta (GENERIC.MP) #0: Tue Feb 8 09:55:53 ART 2011
[email protected]:/usr/src/sys/arch/i386/compile/GENERIC.MP
cpu0: Pentium(R) Dual-Core CPU T4300 @ 2.10GHz ("GenuineIntel"
686-class) 2.10 GHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,EST,TM2,SSSE3,CX16,xTPR,PDCM,XSAVE
real mem = 2104799232 (2007MB)
avail mem = 2060206080 (1964MB)
mainbus0 at root
bios0 at mainbus0: AT/286+ BIOS, date 08/21/09, BIOS32 rev. 0 @
0xfdc01, SMBIOS rev. 2.5 @ 0xdc010 (25 entries)
bios0: vendor LENOVO version "18CN33WW(V2.06)" date 08/21/2009
bios0: LENOVO 2958
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP HPET MCFG SLIC DBGP APIC BOOT SSDT SSDT SSDT
acpi0: wakeup devices LID0(S3) P0P2(S4) P0P1(S4) USB0(S3) USB2(S3)
EHC1(S3) EHC2(S3) HDEF(S0) RP02(S4) RP04(S3) PXSX(S4)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpihpet0 at acpi0: 14318179 Hz
acpimcfg0 at acpi0 addr 0xe0000000, bus 0-255
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: apic clock running at 199MHz
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Pentium(R) Dual-Core CPU T4300 @ 2.10GHz ("GenuineIntel"
686-class) 2.10 GHz
cpu1:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,EST,TM2,SSSE3,CX16,xTPR,PDCM,XSAVE
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (P0P2)
acpiprt2 at acpi0: bus 2 (RP01)
acpiprt3 at acpi0: bus 3 (RP02)
acpiprt4 at acpi0: bus 4 (RP03)
acpiprt5 at acpi0: bus 5 (RP04)
acpiprt6 at acpi0: bus -1 (RP05)
acpiprt7 at acpi0: bus 7 (RP06)
acpiec0 at acpi0
acpicpu0 at acpi0: C2, C1, PSS
acpicpu1 at acpi0: C2, C1, PSS
acpitz0 at acpi0: critical temperature 119 degC
acpibtn0 at acpi0: LID0
acpibtn1 at acpi0: PWRB
acpibtn2 at acpi0: SLPB
acpibat0 at acpi0: BAT1 model "PABAS024" serial 3658Q type LION oem "SANYO "
acpiac0 at acpi0: AC unit online
acpivideo0 at acpi0: VGA_
acpivideo1 at acpi0: GFX0
bios0: ROM list: 0xc0000/0xfc00! 0xd0000/0x1e00 0xdc000/0x4000! 0xe0000/0x1800!
cpu0: Enhanced SpeedStep 2095 MHz: speeds: 2100, 1600, 1200 MHz
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 0 function 0 "Intel GM45 Host" rev 0x09
vga1 at pci0 dev 2 function 0 "Intel GM45 Video" rev 0x09
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
intagp0 at vga1
agp0 at intagp0: aperture at 0xd0000000, size 0x10000000
inteldrm0 at vga1: apic 2 int 16 (irq 5)
drm0 at inteldrm0
"Intel GM45 Video" rev 0x09 at pci0 dev 2 function 1 not configured
uhci0 at pci0 dev 26 function 0 "Intel 82801I USB" rev 0x03: apic 2
int 16 (irq 5)
uhci1 at pci0 dev 26 function 1 "Intel 82801I USB" rev 0x03: apic 2
int 21 (irq 11)
uhci2 at pci0 dev 26 function 2 "Intel 82801I USB" rev 0x03: apic 2
int 20 (irq 7)
ehci0 at pci0 dev 26 function 7 "Intel 82801I USB" rev 0x03: apic 2
int 20 (irq 7)
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
azalia0 at pci0 dev 27 function 0 "Intel 82801I HD Audio" rev 0x03:
apic 2 int 22 (irq 10)
azalia0: codecs: Conexant CX20561
audio0 at azalia0
ppb0 at pci0 dev 28 function 0 "Intel 82801I PCIE" rev 0x03: apic 2
int 17 (irq 11)
pci1 at ppb0 bus 2
ppb1 at pci0 dev 28 function 1 "Intel 82801I PCIE" rev 0x03: apic 2
int 16 (irq 5)
pci2 at ppb1 bus 3
ppb2 at pci0 dev 28 function 2 "Intel 82801I PCIE" rev 0x03: apic 2
int 18 (irq 3)
pci3 at ppb2 bus 4
"Broadcom BCM4315" rev 0x01 at pci3 dev 0 function 0 not configured
ppb3 at pci0 dev 28 function 3 "Intel 82801I PCIE" rev 0x03: apic 2
int 19 (irq 10)
pci4 at ppb3 bus 5
ppb4 at pci0 dev 28 function 5 "Intel 82801I PCIE" rev 0x03: apic 2
int 16 (irq 5)
pci5 at ppb4 bus 7
bge0 at pci5 dev 0 function 0 "Broadcom BCM5906M" rev 0x02, BCM5906 A2
(0xc002): apic 2 int 17 (irq 11), address 00:26:22:ca:3c:d1
brgphy0 at bge0 phy 1: BCM5906 10/100baseTX PHY, rev. 0
uhci3 at pci0 dev 29 function 0 "Intel 82801I USB" rev 0x03: apic 2
int 23 (irq 4)
uhci4 at pci0 dev 29 function 1 "Intel 82801I USB" rev 0x03: apic 2
int 19 (irq 10)
uhci5 at pci0 dev 29 function 2 "Intel 82801I USB" rev 0x03: apic 2
int 18 (irq 3)
ehci1 at pci0 dev 29 function 7 "Intel 82801I USB" rev 0x03: apic 2
int 23 (irq 4)
usb1 at ehci1: USB revision 2.0
uhub1 at usb1 "Intel EHCI root hub" rev 2.00/1.00 addr 1
ppb5 at pci0 dev 30 function 0 "Intel 82801BAM Hub-to-PCI" rev 0x93
pci6 at ppb5 bus 8
pcib0 at pci0 dev 31 function 0 "Intel 82801IBM LPC" rev 0x03
pciide0 at pci0 dev 31 function 2 "Intel 82801I SATA" rev 0x03: DMA,
channel 0 configured to native-PCI, channel 1 configured to native-PCI
pciide0: using apic 2 int 19 (irq 10) for native-PCI interrupt
wd0 at pciide0 channel 0 drive 0: <Hitachi HTS543225L9A300>
wd0: 16-sector PIO, LBA48, 238475MB, 488397168 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 6
atapiscsi0 at pciide0 channel 1 drive 0
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 0 lun 0: <Optiarc, DVD RW AD-7580S, F820> ATAPI
5/cdrom removable
cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 5
ichiic0 at pci0 dev 31 function 3 "Intel 82801I SMBus" rev 0x03: apic
2 int 19 (irq 10)
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 2GB DDR3 SDRAM PC3-8500 SO-DIMM
pciide1 at pci0 dev 31 function 5 "Intel 82801I SATA" rev 0x03: DMA,
channel 0 wired to native-PCI, channel 1 wired to native-PCI
pciide1: using apic 2 int 19 (irq 10) for native-PCI interrupt
"Intel 82801I Thermal" rev 0x03 at pci0 dev 31 function 6 not configured
usb2 at uhci0: USB revision 1.0
uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb3 at uhci1: USB revision 1.0
uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb4 at uhci2: USB revision 1.0
uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb5 at uhci3: USB revision 1.0
uhub5 at usb5 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb6 at uhci4: USB revision 1.0
uhub6 at usb6 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb7 at uhci5: USB revision 1.0
uhub7 at usb7 "Intel UHCI root hub" rev 1.00/1.00 addr 1
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
mtrr: Pentium Pro MTRR support
uvideo0 at uhub1 port 3 configuration 1 interface 0 "Bison Electronics
Inc. Lenovo EasyCamera" rev 2.00/14.10 addr 2
video0 at uvideo0
ugen0 at uhub7 port 1 "Anchor Chips product 0x7453" rev 2.00/0.00 addr 2
vscsi0 at root
scsibus1 at vscsi0: 256 targets
softraid0 at root
root on wd0a swap on wd0b dump on wd0b
