Re: Problems with the sound card.
On Thu, 2 Sep 1999, Luoqi Chen wrote:
That's exactly what I have. This is just so weird. I am now reading the
debug register chapter of intel's manual, it is virtually impossible to
pinpoint the location by single-stepping through the code...
The debug register trick worked, and the discovery was quite unexpected:
because the isa bus is hanging off the pci bus, bus_release_resource()
call by a isa device, eventually reaches the pci_release_resource(),
where the device is blindly assumed to be a pci device and its isa_device
struct overwritten as if it were a struct pci_devinfo. pci_release_resource()
should check for pass-thru releases.
How about this patch:
Index: pci.c
===
RCS file: /home/ncvs/src/sys/pci/pci.c,v
retrieving revision 1.116
diff -u -r1.116 pci.c
--- pci.c 1999/08/28 00:51:03 1.116
+++ pci.c 1999/09/03 07:59:44
@@ -1375,40 +1375,42 @@
int rv;
struct pci_devinfo *dinfo = device_get_ivars(child);
pcicfgregs *cfg = dinfo-cfg;
+ int passthrough = (device_get_parent(child) != dev);
int map = 0;
- switch (type) {
- case SYS_RES_IRQ:
- if (rid != 0)
- return EINVAL;
- break;
+ if (!passthrough)
+ switch (type) {
+ case SYS_RES_IRQ:
+ if (rid != 0)
+ return EINVAL;
+ break;
- case SYS_RES_DRQ: /* passthru for child isa */
- break;
+ case SYS_RES_DRQ: /* passthru for child isa */
+ break;
#ifdef __alpha__
- case SYS_RES_DENSE:
- case SYS_RES_BWX:
+ case SYS_RES_DENSE:
+ case SYS_RES_BWX:
#endif
- case SYS_RES_MEMORY:
- case SYS_RES_IOPORT:
- /*
+ case SYS_RES_MEMORY:
+ case SYS_RES_IOPORT:
+ /*
* Only check the map registers if this is a direct
* descendant.
*/
- if (device_get_parent(child) == dev)
- map = pci_mapno(cfg, rid);
- else
- map = -1;
- break;
-
- default:
- return (ENOENT);
- }
+ if (device_get_parent(child) == dev)
+ map = pci_mapno(cfg, rid);
+ else
+ map = -1;
+ break;
+
+ default:
+ return (ENOENT);
+ }
rv = BUS_RELEASE_RESOURCE(device_get_parent(dev), child, type, rid, r);
- if (rv == 0) {
+ if (!passthrough rv == 0) {
switch (type) {
case SYS_RES_IRQ:
cfg-irqres = 0;
--
Doug Rabson Mail: [EMAIL PROTECTED]
Nonlinear Systems Ltd. Phone: +44 181 442 9037
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-current" in the body of the message
Re: Problems with the sound card.
On Thu, 2 Sep 1999, Ollivier Robert wrote: According to Doug Rabson: changing over to the pcm driver. Since your card is a PnP one, you should be able to put just "device pcm0" in your kernel config. Even for ISA ones ? I though only PCI sound cards let you use the shorter form... The new ISA PnP code uses it too. -- Doug Rabson Mail: [EMAIL PROTECTED] Nonlinear Systems Ltd. Phone: +44 181 442 9037 To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: Problems with the sound card.
What about documenting what you do here? It's not quite obvious to me why the dev is not the parent of the child in some cases. Cheers, Nick pcicfgregs *cfg = dinfo-cfg; +int passthrough = (device_get_parent(child) != dev); int map = 0; -- ISIS/STA, T.P.270, Joint Research Centre, 21020 Ispra, Italy To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: Problems with the sound card.
On Fri, 3 Sep 1999, Nick Hibma wrote: What about documenting what you do here? It's not quite obvious to me why the dev is not the parent of the child in some cases. It may be a great-grandchild. For instance in this case, the child is isab0, the grandchild is isa0 and the great-grandchild is pcm0. -- Doug Rabson Mail: [EMAIL PROTECTED] Nonlinear Systems Ltd. Phone: +44 181 442 9037 To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: Problems with the sound card.
Could you send the output of dmesg. It could be that your BIOS has rearranged the irq settings and has put another card on that IRQ. Is the sound card PNP? If not, could you check that the card's IRQ is marked as legacy in the BIOS? Nick My sound card used to work, and with a backup kernel it still did ( I lost it ) but after doing a make update world yesturday I came to the realization that it no longer works. Did someone break the sb drivers? I get a drq / irq conflict error, but they are set to the sound card's settings. Arthur H. Johnson II http://www.linuxberg.com Linuxberg Manager [EMAIL PROTECTED] To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message -- ISIS/STA, T.P.270, Joint Research Centre, 21020 Ispra, Italy To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: Problems with the sound card.
here it is: Copyright (c) 1992-1999 The FreeBSD Project. Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. FreeBSD 4.0-CURRENT #4: Thu Sep 2 10:45:54 EDT 1999 [EMAIL PROTECTED]:/usr/src/sys/compile/ARTHUR Timecounter "i8254" frequency 1193182 Hz CPU: Pentium/P55C (167.05-MHz 586-class CPU) Origin = "GenuineIntel" Id = 0x543 Stepping = 3 Features=0x8001bfFPU,VME,DE,PSE,TSC,MSR,MCE,CX8,MMX real memory = 67108864 (65536K bytes) avail memory = 62173184 (60716K bytes) Preloaded elf kernel "kernel" at 0xc02d1000. Intel Pentium detected, installing workaround for F00F bug npx0: math processor on motherboard npx0: INT 16 interface pcib0: Host to PCI bridge on motherboard pci0: PCI bus on pcib0 isab0: Intel 82371SB PCI to ISA bridge at device 7.0 on pci0 isa0: ISA bus on isab0 ide_pci0: Intel PIIX3 Bus-master IDE controller at device 7.1 on pci0 vga-pci0: Matrox MGA 1024SG/1064SG/1164SG graphics accelerator irq 10 at device 10.0 on pci0 xl0: 3Com 3c905B-TX Fast Etherlink XL irq 11 at device 11.0 on pci0 xl0: Ethernet address: 00:10:4b:c5:24:df miibus0: MII bus on xl0 xlphy0: 3Com internal media interface on miibus0 xlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto fdc0: NEC 72065B or clone at port 0x3f0-0x3f7 irq 6 drq 2 on isa0 fdc0: FIFO enabled, 8 bytes threshold fd0: 1440-KB 3.5" drive on fdc0 drive 0 wdc0 at port 0x1f0-0x1f7 irq 14 on isa0 wdc0: unit 0 (wd0): WDC AC23200L wd0: 3098MB (6346368 sectors), 6296 cyls, 16 heads, 63 S/T, 512 B/S wdc1 at port 0x170-0x177 irq 15 on isa0 wdc1: unit 0 (atapi): E285XA/1.00, removable, dma, iordis wcd0: drive speed 1377KB/sec, 240KB cache wcd0: supported read types: CD-DA wcd0: Audio: play, 255 volume levels wcd0: Mechanism: ejectable tray wcd0: Medium: no/blank disc inside, unlocked atkbdc0: keyboard controller (i8042) at port 0x60-0x6f on isa0 atkbd0: AT Keyboard irq 1 on atkbdc0 vga0: Generic ISA VGA at port 0x3b0-0x3df iomem 0xa-0xb on isa0 sc0: System console on isa0 sc0: VGA 16 virtual consoles, flags=0x200 sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0 sio0: type 16550A sio1 at port 0x2f8-0x2ff irq 3 on isa0 sio1: type 16550A ppc0 at port 0x378-0x37f irq 7 flags 0x40 on isa0 ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode ppc0: FIFO with 16/16/16 bytes threshold ppi0: generic parallel i/o on ppbus 0 sb0 at port 0x220 irq 5 drq 1 on isa0 snd0: SoundBlaster 16 4.13 sbxvi0 at port 0x drq 5 on isa0 isa_compat: didn't get ports for sbxvi snd0: SoundBlaster 16 4.13 WARNING: "snd" is usurping "snd"'s cdevsw[] unknown0: Game on isa0 unknown1: Audio at port 0x221-0x230,0x300-0x301,0x388-0x38b irq 9 drq 3,7 on isa0 changing root device to wd0s1a Sound: DMA (output) timed out - IRQ/DRQ config error? Sound: DMA (output) timed out - IRQ/DRQ config error? Sound: DMA (output) timed out - IRQ/DRQ config error? thanks. Arthur H. Johnson II http://www.linuxberg.com Linuxberg Manager [EMAIL PROTECTED] On Thu, 2 Sep 1999, Nick Hibma wrote: Could you send the output of dmesg. It could be that your BIOS has rearranged the irq settings and has put another card on that IRQ. Is the sound card PNP? If not, could you check that the card's IRQ is marked as legacy in the BIOS? Nick My sound card used to work, and with a backup kernel it still did ( I lost it ) but after doing a make update world yesturday I came to the realization that it no longer works. Did someone break the sb drivers? I get a drq / irq conflict error, but they are set to the sound card's settings. Arthur H. Johnson II http://www.linuxberg.com Linuxberg Manager [EMAIL PROTECTED] To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message -- ISIS/STA, T.P.270, Joint Research Centre, 21020 Ispra, Italy To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: Problems with the sound card.
Could you send the output of dmesg. It could be that your BIOS has rearranged the irq settings and has put another card on that IRQ. Is the sound card PNP? If not, could you check that the card's IRQ is marked as legacy in the BIOS? Nick My sound card used to work, and with a backup kernel it still did ( I lost it ) but after doing a make update world yesturday I came to the realization that it no longer works. Did someone break the sb drivers? I get a drq / irq conflict error, but they are set to the sound card's settings. Arthur H. Johnson II http://www.linuxberg.com Linuxberg Manager [EMAIL PROTECTED] I too have problems with my on board CS4236 sound chip and it is of a very strange nature: in the new isa pnp code, function isa_assign_resources() mysteriously overwrites the isa_device structure and sets logical_id to 0, and as a result subsequent probe would not recognize it any more. I have narrowed it down to the bus_release_resource() call at the end of isa_find_irq(). It was so convoluted beyond that point and I gave up. I'd like to see someone more familiar with the code to continue. -lq To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: Problems with the sound card.
On Thu, 2 Sep 1999, Luoqi Chen wrote: Could you send the output of dmesg. It could be that your BIOS has rearranged the irq settings and has put another card on that IRQ. Is the sound card PNP? If not, could you check that the card's IRQ is marked as legacy in the BIOS? Nick My sound card used to work, and with a backup kernel it still did ( I lost it ) but after doing a make update world yesturday I came to the realization that it no longer works. Did someone break the sb drivers? I get a drq / irq conflict error, but they are set to the sound card's settings. Arthur H. Johnson II http://www.linuxberg.com Linuxberg Manager [EMAIL PROTECTED] I too have problems with my on board CS4236 sound chip and it is of a very strange nature: in the new isa pnp code, function isa_assign_resources() mysteriously overwrites the isa_device structure and sets logical_id to 0, and as a result subsequent probe would not recognize it any more. I have narrowed it down to the bus_release_resource() call at the end of isa_find_irq(). It was so convoluted beyond that point and I gave up. I'd like to see someone more familiar with the code to continue. This sounds pretty strange. What do you have in your kernel config? For PnP cards, you just need: device pcm0 in the config file (i.e. no explicit bus location or resource assignments). -- Doug Rabson Mail: [EMAIL PROTECTED] Nonlinear Systems Ltd. Phone: +44 181 442 9037 To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: Problems with the sound card.
I too have problems with my on board CS4236 sound chip and it is of a very strange nature: in the new isa pnp code, function isa_assign_resources() mysteriously overwrites the isa_device structure and sets logical_id to 0, and as a result subsequent probe would not recognize it any more. I have narrowed it down to the bus_release_resource() call at the end of isa_find_irq(). It was so convoluted beyond that point and I gave up. I'd like to see someone more familiar with the code to continue. This sounds pretty strange. What do you have in your kernel config? For PnP cards, you just need: device pcm0 in the config file (i.e. no explicit bus location or resource assignments). That's exactly what I have. This is just so weird. I am now reading the debug register chapter of intel's manual, it is virtually impossible to pinpoint the location by single-stepping through the code... -lq To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: Problems with the sound card.
That's exactly what I have. This is just so weird. I am now reading the debug register chapter of intel's manual, it is virtually impossible to pinpoint the location by single-stepping through the code... The debug register trick worked, and the discovery was quite unexpected: because the isa bus is hanging off the pci bus, bus_release_resource() call by a isa device, eventually reaches the pci_release_resource(), where the device is blindly assumed to be a pci device and its isa_device struct overwritten as if it were a struct pci_devinfo. pci_release_resource() should check for pass-thru releases. -lq To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
