* Re: Lava dual parallel PCI card IRQ problem
[not found] <20090318143921.22B5B13A4B0@koiott.tartu-labor>
@ 2009-03-19 13:04 ` Meelis Roos
2009-03-19 13:10 ` Alan Cox
0 siblings, 1 reply; 10+ messages in thread
From: Meelis Roos @ 2009-03-19 13:04 UTC (permalink / raw)
To: Alan Cox; +Cc: linux-kernel
> First cut to try
>
> parport: Use the PCI IRQ if offered
>
> From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Doesn't seem to do anything here on a 1-port Lava PCI parallel card
parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,COMPAT,ECP,DMA]
ACPI: PCI Interrupt Link [LNKH] enabled at IRQ 11
parport_pc 0000:01:0b.0: PCI INT A -> Link[LNKH] -> GSI 11 (level, low) -> IRQ 11
PCI parallel port detected: 1407:8000, I/O at 0xdff0(0x0), IRQ 11
parport1: PC-style at 0xdff0 [PCSPP,TRISTATE,EPP]
[...]
lp0: using parport0 (interrupt-driven).
lp1: using parport1 (polling).
lspci tells this:
01:0b.0 Parallel controller [0701]: Lava Computer mfg Inc Lava Parallel [1407:8000] (prog-if 01 [BiDir])
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 11
Region 0: I/O ports at dff0 [size=8]
Kernel driver in use: parport_pc
--
Meelis Roos (mroos@linux.ee)
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Lava dual parallel PCI card IRQ problem
2009-03-19 13:04 ` Lava dual parallel PCI card IRQ problem Meelis Roos
@ 2009-03-19 13:10 ` Alan Cox
2009-03-19 13:33 ` Meelis Roos
0 siblings, 1 reply; 10+ messages in thread
From: Alan Cox @ 2009-03-19 13:10 UTC (permalink / raw)
To: Meelis Roos; +Cc: linux-kernel
> PCI parallel port detected: 1407:8000, I/O at 0xdff0(0x0), IRQ 11
Well we are half way there - it has detected the port and IRQ properly.
> parport1: PC-style at 0xdff0 [PCSPP,TRISTATE,EPP]
> [...]
> lp0: using parport0 (interrupt-driven).
> lp1: using parport1 (polling).
You may need to stick a few printks in the port registration path to see
why it made that decision.
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Lava dual parallel PCI card IRQ problem
2009-03-19 13:10 ` Alan Cox
@ 2009-03-19 13:33 ` Meelis Roos
2009-03-19 13:49 ` Meelis Roos
0 siblings, 1 reply; 10+ messages in thread
From: Meelis Roos @ 2009-03-19 13:33 UTC (permalink / raw)
To: Alan Cox; +Cc: linux-kernel
> You may need to stick a few printks in the port registration path to see
> why it made that decision.
Got it - it's a simple copypaste mistake:
+ irq = dev->irq;
+ if (irq == IRQ_NONE) {
+ printk (KERN_DEBUG
+ "PCI parallel port detected: %04x:%04x, I/O at %#lx(%#lx)\n",
+ parport_pc_pci_tbl[i + last_sio].vendor,
+ parport_pc_pci_tbl[i + last_sio].device,
+ io_lo, io_hi);
+ irq = PARPORT_IRQ_NONE;
+ } else {
+ printk (KERN_DEBUG
+ "PCI parallel port detected: %04x:%04x, I/O at %#lx(%#lx), IRQ %d\n",
+ parport_pc_pci_tbl[i + last_sio].vendor,
+ parport_pc_pci_tbl[i + last_sio].device,
+ io_lo, io_hi, irq);
+ irq = PARPORT_IRQ_NONE;
+ }
If I remove the second "irq = PARPORT_IRQ_NONE;" it starts to load fine.
Will test later with a rela printer attached.
--
Meelis Roos (mroos@linux.ee)
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Lava dual parallel PCI card IRQ problem
2009-03-19 13:33 ` Meelis Roos
@ 2009-03-19 13:49 ` Meelis Roos
2009-03-20 7:36 ` Meelis Roos
0 siblings, 1 reply; 10+ messages in thread
From: Meelis Roos @ 2009-03-19 13:49 UTC (permalink / raw)
To: Alan Cox; +Cc: Linux Kernel list
> If I remove the second "irq = PARPORT_IRQ_NONE;" it starts to load fine.
> Will test later with a rela printer attached.
Printer prints without the patch.
The whole system hangs hard when trying to print with the patch applied.
100% repeatable, and with loglevel 9, nothing appears on the console.
IRQ 11 is shared with many other PCI devices.
--
Meelis Roos (mroos@linux.ee)
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Lava dual parallel PCI card IRQ problem
2009-03-19 13:49 ` Meelis Roos
@ 2009-03-20 7:36 ` Meelis Roos
0 siblings, 0 replies; 10+ messages in thread
From: Meelis Roos @ 2009-03-20 7:36 UTC (permalink / raw)
To: Alan Cox; +Cc: Linux Kernel list
> Printer prints without the patch.
>
> The whole system hangs hard when trying to print with the patch applied.
> 100% repeatable, and with loglevel 9, nothing appears on the console.
Recompiled the kernels with most debug options turned on under kernel
hacking menu, still no messages.
--
Meelis Roos (mroos@linux.ee)
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Lava dual parallel PCI card IRQ problem
2009-03-18 11:35 ` Alan Cox
@ 2009-03-19 20:41 ` Gabor Kovacs
0 siblings, 0 replies; 10+ messages in thread
From: Gabor Kovacs @ 2009-03-19 20:41 UTC (permalink / raw)
To: Alan Cox; +Cc: linux-kernel
Hi Alan,
Your patch looks good. IRQ detection works on my dual parallel port.
[ 3131.988489] pnp: the driver 'parport_pc' has been registered
[ 3131.988510] parport_pc 00:04: current resources: before
pnp_assign_resources
[ 3131.988513] parport_pc 00:04: irq 7 flags 0x401
[ 3131.988516] parport_pc 00:04: io 0x378-0x37f flags 0x101
[ 3131.988521] parport_pc 00:04: assigning independent options
[ 3131.988524] parport_pc 00:04: assigning dependent option 1
[ 3131.988527] parport_pc 00:04: io 0 already set to 0x378-0x37f flags 0x101
[ 3131.988530] parport_pc 00:04: irq 0 already set to 7 flags 0x401
[ 3131.988532] parport_pc 00:04: current resources: after pnp_assign_resources
[ 3131.988535] parport_pc 00:04: irq 7 flags 0x401
[ 3131.988538] parport_pc 00:04: io 0x378-0x37f flags 0x101
[ 3131.988542] parport_pc 00:04: current resources: pnp_start_dev
[ 3131.988546] parport_pc 00:04: irq 7 flags 0x401
[ 3131.988549] parport_pc 00:04: io 0x378-0x37f flags 0x101
[ 3131.988553] parport_pc 00:04: set resources
[ 3131.989987] parport_pc 00:04: encode 3 resources
[ 3131.989990] parport_pc 00:04: encode io 0x378-0x37f decode 0x1
[ 3131.989993] parport_pc 00:04: encode irq 7 edge high exclusive (2-byte
descriptor)
[ 3131.989996] parport_pc 00:04: encode dma -1 type 0x0 transfer 0x0 master
0
[ 3131.990898] parport_pc 00:04: activated
[ 3131.990898] parport_pc 00:04: reported by Plug and Play ACPI
[ 3131.990898] parport0: PC-style at 0x378, irq 7 [PCSPP]
[ 3132.093522] parport_pc 00:04: driver attached
[ 3132.094824] PCI parallel port detected: 1407:8002, I/O at 0xb880(0x0), IRQ
17
[ 3132.094824] parport1: PC-style at 0xb880 [PCSPP,TRISTATE,EPP]
[ 3132.185524] PCI parallel port detected: 1407:8003, I/O at 0xb800(0x0), IRQ
17
[ 3132.185547] parport2: PC-style at 0xb800 [PCSPP,TRISTATE,EPP]
======
01:07.0 Parallel controller: Lava Computer mfg Inc Lava Dual Parallel port A
(rev 03) (prog-if 01 [BiDir])
Subsystem: Lava Computer mfg Inc Lava Dual Parallel port A
Flags: medium devsel, IRQ 17
I/O ports at b880 [size=8]
Kernel driver in use: parport_pc
Kernel modules: parport_pc
01:07.1 Parallel controller: Lava Computer mfg Inc Lava Dual Parallel port B
(rev 03) (prog-if 01 [BiDir])
Subsystem: Lava Computer mfg Inc Lava Dual Parallel port B
Flags: medium devsel, IRQ 17
I/O ports at b800 [size=8]
Kernel driver in use: parport_pc
Kernel modules: parport_pc
......
06:00.0 Ethernet controller: VIA Technologies, Inc. VT6120/VT6121/VT6122
Gigabit Ethernet Adapter (rev 82)
Subsystem: VIA Technologies, Inc. Device 0110
Flags: bus master, fast devsel, latency 0, IRQ 17
I/O ports at e800 [size=256]
Memory at febffc00 (64-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 3
Capabilities: [90] Express Endpoint, MSI 00
Capabilities: [c0] Message Signalled Interrupts: Mask+ 64bit+
Queue=0/0 Enable-
Kernel driver in use: via-velocity
Kernel modules: via-velocity
===
I also tried commenting out "irq = PARPORT_IRQ_NONE;" Interrupts are working,
of course, driver is not yet aware of irq sharing. Each time I have some
network traffic, I get an interrupt on parport, too. I guess the two ports on
Lava card cannot be distinguished either.
Looking forward to the next part.
-- Gabor
On Wednesday 18 March 2009 07:35:59 Alan Cox wrote:
> First cut to try
>
> parport: Use the PCI IRQ if offered
>
> From: Alan Cox <alan@lxorguk.ukuu.org.uk>
>
> parport: Use the PCI IRQ if offered
>
> From: Alan Cox <alan@lxorguk.ukuu.org.uk>
>
>
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Lava dual parallel PCI card IRQ problem
2009-03-17 22:52 ` Gabor Kovacs
@ 2009-03-18 11:35 ` Alan Cox
2009-03-19 20:41 ` Gabor Kovacs
0 siblings, 1 reply; 10+ messages in thread
From: Alan Cox @ 2009-03-18 11:35 UTC (permalink / raw)
To: Gabor Kovacs; +Cc: linux-kernel
First cut to try
parport: Use the PCI IRQ if offered
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
parport: Use the PCI IRQ if offered
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
---
drivers/parport/parport_cs.c | 3 +-
drivers/parport/parport_pc.c | 58 ++++++++++++++++++++++++--------------
drivers/parport/parport_serial.c | 20 ++++++++++---
include/linux/parport_pc.h | 11 ++++---
4 files changed, 61 insertions(+), 31 deletions(-)
diff --git a/drivers/parport/parport_cs.c b/drivers/parport/parport_cs.c
index 0cd5fbc..8fdfa4f 100644
--- a/drivers/parport/parport_cs.c
+++ b/drivers/parport/parport_cs.c
@@ -43,6 +43,7 @@
#include <linux/timer.h>
#include <linux/ioport.h>
#include <linux/major.h>
+#include <linux/interrupt.h>
#include <linux/parport.h>
#include <linux/parport_pc.h>
@@ -192,7 +193,7 @@ static int parport_config(struct pcmcia_device *link)
p = parport_pc_probe_port(link->io.BasePort1, link->io.BasePort2,
link->irq.AssignedIRQ, PARPORT_DMA_NONE,
- &link->dev);
+ &link->dev, IRQF_SHARED);
if (p == NULL) {
printk(KERN_NOTICE "parport_cs: parport_pc_probe_port() at "
"0x%3x, irq %u failed\n", link->io.BasePort1,
diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index 96f3bdf..ff01d01 100644
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -2170,10 +2170,11 @@ static int parport_dma_probe (struct parport *p)
static LIST_HEAD(ports_list);
static DEFINE_SPINLOCK(ports_lock);
-struct parport *parport_pc_probe_port (unsigned long int base,
- unsigned long int base_hi,
- int irq, int dma,
- struct device *dev)
+struct parport *parport_pc_probe_port(unsigned long int base,
+ unsigned long int base_hi,
+ int irq, int dma,
+ struct device *dev,
+ int irqflags)
{
struct parport_pc_private *priv;
struct parport_operations *ops;
@@ -2194,11 +2195,11 @@ struct parport *parport_pc_probe_port (unsigned long int base,
dev = &pdev->dev;
}
- ops = kmalloc(sizeof (struct parport_operations), GFP_KERNEL);
+ ops = kmalloc(sizeof(struct parport_operations), GFP_KERNEL);
if (!ops)
goto out1;
- priv = kmalloc (sizeof (struct parport_pc_private), GFP_KERNEL);
+ priv = kmalloc(sizeof(struct parport_pc_private), GFP_KERNEL);
if (!priv)
goto out2;
@@ -2325,8 +2326,8 @@ struct parport *parport_pc_probe_port (unsigned long int base,
EPP_res = NULL;
}
if (p->irq != PARPORT_IRQ_NONE) {
- if (request_irq (p->irq, parport_irq_handler,
- 0, p->name, p)) {
+ if (request_irq(p->irq, parport_irq_handler,
+ irqflags, p->name, p)) {
printk (KERN_WARNING "%s: irq %d in use, "
"resorting to polled operation\n",
p->name, p->irq);
@@ -2530,7 +2531,7 @@ static int __devinit sio_ite_8872_probe (struct pci_dev *pdev, int autoirq,
*/
release_resource(base_res);
if (parport_pc_probe_port (ite8872_lpt, ite8872_lpthi,
- irq, PARPORT_DMA_NONE, &pdev->dev)) {
+ irq, PARPORT_DMA_NONE, &pdev->dev, 0)) {
printk (KERN_INFO
"parport_pc: ITE 8872 parallel port: io=0x%X",
ite8872_lpt);
@@ -2713,7 +2714,7 @@ static int __devinit sio_via_probe (struct pci_dev *pdev, int autoirq,
}
/* finally, do the probe with values obtained */
- if (parport_pc_probe_port (port1, port2, irq, dma, &pdev->dev)) {
+ if (parport_pc_probe_port (port1, port2, irq, dma, &pdev->dev, 0)) {
printk (KERN_INFO
"parport_pc: VIA parallel port: io=0x%X", port1);
if (irq != PARPORT_IRQ_NONE)
@@ -3018,6 +3019,7 @@ static int parport_pc_pci_probe (struct pci_dev *dev,
for (n = 0; n < cards[i].numports; n++) {
int lo = cards[i].addr[n].lo;
int hi = cards[i].addr[n].hi;
+ int irq;
unsigned long io_lo, io_hi;
io_lo = pci_resource_start (dev, lo);
io_hi = 0;
@@ -3028,13 +3030,26 @@ static int parport_pc_pci_probe (struct pci_dev *dev,
"hi" as an offset (see SYBA
def.) */
/* TODO: test if sharing interrupts works */
- printk (KERN_DEBUG "PCI parallel port detected: %04x:%04x, "
- "I/O at %#lx(%#lx)\n",
- parport_pc_pci_tbl[i + last_sio].vendor,
- parport_pc_pci_tbl[i + last_sio].device, io_lo, io_hi);
+ irq = dev->irq;
+ if (irq == IRQ_NONE) {
+ printk (KERN_DEBUG
+ "PCI parallel port detected: %04x:%04x, I/O at %#lx(%#lx)\n",
+ parport_pc_pci_tbl[i + last_sio].vendor,
+ parport_pc_pci_tbl[i + last_sio].device,
+ io_lo, io_hi);
+ irq = PARPORT_IRQ_NONE;
+ } else {
+ printk (KERN_DEBUG
+ "PCI parallel port detected: %04x:%04x, I/O at %#lx(%#lx), IRQ %d\n",
+ parport_pc_pci_tbl[i + last_sio].vendor,
+ parport_pc_pci_tbl[i + last_sio].device,
+ io_lo, io_hi, irq);
+ irq = PARPORT_IRQ_NONE;
+ }
data->ports[count] =
- parport_pc_probe_port (io_lo, io_hi, PARPORT_IRQ_NONE,
- PARPORT_DMA_NONE, &dev->dev);
+ parport_pc_probe_port(io_lo, io_hi, irq,
+ PARPORT_DMA_NONE, &dev->dev,
+ IRQF_SHARED);
if (data->ports[count])
count++;
}
@@ -3143,7 +3158,8 @@ static int parport_pc_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id
dma = PARPORT_DMA_NONE;
dev_info(&dev->dev, "reported by %s\n", dev->protocol->name);
- if (!(pdata = parport_pc_probe_port (io_lo, io_hi, irq, dma, &dev->dev)))
+ if (!(pdata = parport_pc_probe_port(io_lo, io_hi,
+ irq, dma, &dev->dev, 0)))
return -ENODEV;
pnp_set_drvdata(dev,pdata);
@@ -3192,11 +3208,11 @@ parport_pc_find_isa_ports (int autoirq, int autodma)
{
int count = 0;
- if (parport_pc_probe_port(0x3bc, 0x7bc, autoirq, autodma, NULL))
+ if (parport_pc_probe_port(0x3bc, 0x7bc, autoirq, autodma, NULL, 0))
count++;
- if (parport_pc_probe_port(0x378, 0x778, autoirq, autodma, NULL))
+ if (parport_pc_probe_port(0x378, 0x778, autoirq, autodma, NULL, 0))
count++;
- if (parport_pc_probe_port(0x278, 0x678, autoirq, autodma, NULL))
+ if (parport_pc_probe_port(0x278, 0x678, autoirq, autodma, NULL, 0))
count++;
return count;
@@ -3481,7 +3497,7 @@ static int __init parport_pc_init(void)
if ((io_hi[i]) == PARPORT_IOHI_AUTO)
io_hi[i] = 0x400 + io[i];
parport_pc_probe_port(io[i], io_hi[i],
- irqval[i], dmaval[i], NULL);
+ irqval[i], dmaval[i], NULL, 0);
}
} else
parport_pc_find_ports (irqval[0], dmaval[0]);
diff --git a/drivers/parport/parport_serial.c b/drivers/parport/parport_serial.c
index 032db81..030f5a6 100644
--- a/drivers/parport/parport_serial.c
+++ b/drivers/parport/parport_serial.c
@@ -21,6 +21,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
+#include <linux/interrupt.h>
#include <linux/parport.h>
#include <linux/parport_pc.h>
#include <linux/8250_pci.h>
@@ -291,6 +292,7 @@ static int __devinit parport_register (struct pci_dev *dev,
int lo = card->addr[n].lo;
int hi = card->addr[n].hi;
unsigned long io_lo, io_hi;
+ int irq;
if (priv->num_par == ARRAY_SIZE (priv->port)) {
printk (KERN_WARNING
@@ -309,10 +311,20 @@ static int __devinit parport_register (struct pci_dev *dev,
"hi" as an offset (see SYBA
def.) */
/* TODO: test if sharing interrupts works */
- dev_dbg(&dev->dev, "PCI parallel port detected: I/O at "
- "%#lx(%#lx)\n", io_lo, io_hi);
- port = parport_pc_probe_port (io_lo, io_hi, PARPORT_IRQ_NONE,
- PARPORT_DMA_NONE, &dev->dev);
+ irq = dev->irq;
+ if (irq == IRQ_NONE) {
+ dev_dbg(&dev->dev,
+ "PCI parallel port detected: I/O at %#lx(%#lx)\n",
+ io_lo, io_hi);
+ irq = PARPORT_IRQ_NONE;
+ } else {
+ dev_dbg(&dev->dev,
+ "PCI parallel port detected: I/O at %#lx(%#lx), IRQ %d\n",
+ io_lo, io_hi, irq);
+ irq = PARPORT_IRQ_NONE;
+ }
+ port = parport_pc_probe_port (io_lo, io_hi, irq,
+ PARPORT_DMA_NONE, &dev->dev, IRQF_SHARED);
if (port) {
priv->port[priv->num_par++] = port;
success = 1;
diff --git a/include/linux/parport_pc.h b/include/linux/parport_pc.h
index ea8c6d8..cc1767f 100644
--- a/include/linux/parport_pc.h
+++ b/include/linux/parport_pc.h
@@ -228,10 +228,11 @@ extern void parport_pc_release_resources(struct parport *p);
extern int parport_pc_claim_resources(struct parport *p);
/* PCMCIA code will want to get us to look at a port. Provide a mechanism. */
-extern struct parport *parport_pc_probe_port (unsigned long base,
- unsigned long base_hi,
- int irq, int dma,
- struct device *dev);
-extern void parport_pc_unregister_port (struct parport *p);
+extern struct parport *parport_pc_probe_port(unsigned long base,
+ unsigned long base_hi,
+ int irq, int dma,
+ struct device *dev,
+ int irqflags);
+extern void parport_pc_unregister_port(struct parport *p);
#endif
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Lava dual parallel PCI card IRQ problem
2009-03-16 10:57 ` Alan Cox
@ 2009-03-17 22:52 ` Gabor Kovacs
2009-03-18 11:35 ` Alan Cox
0 siblings, 1 reply; 10+ messages in thread
From: Gabor Kovacs @ 2009-03-17 22:52 UTC (permalink / raw)
To: Alan Cox; +Cc: linux-kernel
On Monday 16 March 2009 06:57:28 Alan Cox wrote:
> On Fri, 13 Mar 2009 00:51:18 -0400
>
> Gabor Kovacs <kgabor@bolyai.elte.hu> wrote:
> > Hi All,
> >
> > I have problems in setting up IRQ mode operation of parallel ports using
> > onboard port and a LAVA dual parallel PCI card. IRQ is needed to catch
> > events of an external instrument.
>
> The current driver never tries to initialise IRQ support for parallel PCI
> ports and never has. I am not sure why this should be the case but I can
> send you a patch to see what happens if we enable it.
Thanks, that would be great. Indeed, I also looked a bit into parport_pc.c and
found that there is no autodetection. There is some irq detection code in
irq_probe_EPP (disabled by ADVANCED_DETECT macro), but enabling it gives
compile error.
Gabor
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: Lava dual parallel PCI card IRQ problem
2009-03-13 4:51 Gabor Kovacs
@ 2009-03-16 10:57 ` Alan Cox
2009-03-17 22:52 ` Gabor Kovacs
0 siblings, 1 reply; 10+ messages in thread
From: Alan Cox @ 2009-03-16 10:57 UTC (permalink / raw)
To: Gabor Kovacs; +Cc: linux-kernel
On Fri, 13 Mar 2009 00:51:18 -0400
Gabor Kovacs <kgabor@bolyai.elte.hu> wrote:
> Hi All,
>
> I have problems in setting up IRQ mode operation of parallel ports using
> onboard port and a LAVA dual parallel PCI card. IRQ is needed to catch events
> of an external instrument.
The current driver never tries to initialise IRQ support for parallel PCI
ports and never has. I am not sure why this should be the case but I can
send you a patch to see what happens if we enable it.
^ permalink raw reply [flat|nested] 10+ messages in thread
* Lava dual parallel PCI card IRQ problem
@ 2009-03-13 4:51 Gabor Kovacs
2009-03-16 10:57 ` Alan Cox
0 siblings, 1 reply; 10+ messages in thread
From: Gabor Kovacs @ 2009-03-13 4:51 UTC (permalink / raw)
To: linux-kernel
Hi All,
I have problems in setting up IRQ mode operation of parallel ports using
onboard port and a LAVA dual parallel PCI card. IRQ is needed to catch events
of an external instrument.
Motherboard is a K9N2G-Neo (MS-7511) with one onboard parallel port, x86_64
Debian lenny, kernel custom compiled 2.6.26.5.
In the example below, parport_pc is loaded without any arguments, onboard port
works OK in IRQ mode. LAVA card ports are detected but do not have IRQs, work
in polled operation:
modprobe parport_pc
===
parport_pc 00:04: reported by Plug and Play ACPI
parport0: PC-style at 0x378, irq 7 [PCSPP]
ACPI: Power Button (CM) [PWRB]
parport_pc 00:04: driver attached
ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 16
ACPI: PCI Interrupt 0000:01:06.0[A] -> Link [LNKC] -> GSI 16 (level, low) ->
IRQ 16
PCI parallel port detected: 1407:8002, I/O at 0xb400(0x0)
parport1: PC-style at 0xb400 [PCSPP,TRISTATE,EPP]
ACPI: PCI Interrupt 0000:01:06.1[A] -> Link [LNKC] -> GSI 16 (level, low) ->
IRQ 16
PCI parallel port detected: 1407:8003, I/O at 0xb080(0x0)
parport2: PC-style at 0xb080 [PCSPP,TRISTATE,EPP]
If "io" and "irq" options are specified, parport_pc falls back to some "dumb"
mode. Onboard port does not work at all (lack of PNP/ACPI initialization ?),
LAVA card may work if proper IRQ and IO address are specified (reported by
lspci -v). In most cases, however, this IRQ is already used by an NEC USB
card in my box. Actually, I could not find any way to control IRQ assignment
for cards. The only way is to remove some cards or playing with card order
in slots.
- Is there a way to autodetect and activate LAVA card in IRQ mode?
- What kind of PnP/ACPI initialization steps are omitted if IO/IRQ parameters
are passed to parport_pc?
- Why can't parport_pc share IRQ? (Other devices apparently share IRQs in the
box. See irq 17 below)
Thanks
Gabor Kovacs
===========
Scenarios:
Lava card works in polled operation, onboard port does not work at all:
modprobe parport_pc io=0x378,0xb400,0xb080 irq=auto,auto,auto
===
parport 0x378 (WARNING): CTR: wrote 0x0c, read 0xff
parport 0x378 (WARNING): DATA: wrote 0xaa, read 0xff
parport 0x378: You gave this address, but there is probably no parallel port
there!
parport0: PC-style at 0x378 [PCSPP,TRISTATE]
parport1: PC-style at 0xb400 [PCSPP,TRISTATE,EPP]
parport2: PC-style at 0xb080 [PCSPP,TRISTATE,EPP]
=========
IRQ conflict is reported by parport_pc:
modprobe parport_pc io=0xb400,0xb080 irq=auto,16
===
parport0: PC-style at 0xb400 [PCSPP,TRISTATE,EPP]
parport1: PC-style at 0xb080, irq 16 [PCSPP,TRISTATE,EPP]
parport1: irq 16 in use, resorting to polled operation
cat /proc/interrupts:
CPU0 CPU1 CPU2 CPU3
0: 37 0 0 0 IO-APIC-edge timer
1: 0 0 0 676 IO-APIC-edge i8042
7: 2 0 0 0 IO-APIC-edge
9: 0 0 0 0 IO-APIC-fasteoi acpi
12: 0 0 8 5194 IO-APIC-edge i8042
14: 0 0 0 0 IO-APIC-edge pata_amd
15: 0 0 0 0 IO-APIC-edge pata_amd
16: 0 0 0 0 IO-APIC-fasteoi
ohci_hcd:usb1
17: 0 0 0 4 IO-APIC-fasteoi
18: 0 0 0 0 IO-APIC-fasteoi
ehci_hcd:usb3
19: 0 0 0 0 IO-APIC-fasteoi
ohci_hcd:usb2
507: 0 0 238 2024744 PCI-MSI-edge eth0
508: 0 0 60 176614 PCI-MSI-edge ahci
NMI: 0 0 0 0 Non-maskable interrupts
LOC: 4898793 4898779 4898752 4898724 Local timer interrupts
RES: 20033 12217 15650 29497 Rescheduling interrupts
CAL: 517 602 607 137 function call interrupts
TLB: 1200 992 869 796 TLB shootdowns
TRM: 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 Threshold APIC interrupts
SPU: 0 0 0 0 Spurious interrupts
ERR: 1
lspci -v:
========
00:00.0 RAM memory: nVidia Corporation MCP78S [GeForce 8200] Memory Controller
(rev a2)
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: bus master, 66MHz, fast devsel, latency 0
Capabilities: [94] HyperTransport: #1a
Capabilities: [60] HyperTransport: Retry Mode
Capabilities: [44] HyperTransport: Slave or Primary Interface
Capabilities: [d0] HyperTransport: #1c
00:01.0 ISA bridge: nVidia Corporation MCP78S [GeForce 8200] LPC Bridge (rev
a2)
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: bus master, 66MHz, fast devsel, latency 0
I/O ports at 2f00 [size=256]
00:01.1 SMBus: nVidia Corporation MCP78S [GeForce 8200] SMBus (rev a1)
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: 66MHz, fast devsel, IRQ 11
I/O ports at 2900 [size=64]
I/O ports at 2d00 [size=64]
I/O ports at 2e00 [size=64]
Capabilities: [44] Power Management version 2
00:01.2 RAM memory: nVidia Corporation MCP78S [GeForce 8200] Memory Controller
(rev a1)
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: 66MHz, fast devsel
00:01.3 Co-processor: nVidia Corporation MCP78S [GeForce 8200] Co-Processor
(rev a2)
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 15
Memory at fcf80000 (32-bit, non-prefetchable) [size=512K]
00:01.4 RAM memory: nVidia Corporation MCP78S [GeForce 8200] Memory Controller
(rev a1)
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: 66MHz, fast devsel
00:06.0 IDE interface: nVidia Corporation MCP78S [GeForce 8200] IDE (rev a1)
(prog-if 8a [Master SecP PriP])
Subsystem: Device f462:7511
Flags: bus master, 66MHz, fast devsel, latency 0
[virtual] Memory at 000001f0 (32-bit, non-prefetchable) [disabled]
[size=8]
[virtual] Memory at 000003f0 (type 3, non-prefetchable) [disabled]
[size=1]
[virtual] Memory at 00000170 (32-bit, non-prefetchable) [disabled]
[size=8]
[virtual] Memory at 00000370 (type 3, non-prefetchable) [disabled]
[size=1]
I/O ports at ffa0 [size=16]
Capabilities: [44] Power Management version 2
Kernel driver in use: pata_amd
Kernel modules: pata_amd, ide-pci-generic
00:08.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Bridge (rev
a1) (prog-if 01 [Subtractive decode])
Flags: bus master, 66MHz, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
I/O behind bridge: 0000b000-0000bfff
Capabilities: [b8] Subsystem: Micro-Star International Co., Ltd.
Device 7511
Capabilities: [8c] HyperTransport: MSI Mapping Enable+ Fixed-
00:09.0 SATA controller: nVidia Corporation MCP78S [GeForce 8200] AHCI
Controller (rev a2) (prog-if 01 [AHCI 1.0])
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 508
I/O ports at a480 [size=8]
I/O ports at a400 [size=4]
I/O ports at a080 [size=8]
I/O ports at a000 [size=4]
I/O ports at 9c00 [size=16]
Memory at fcf7e000 (32-bit, non-prefetchable) [size=8K]
Capabilities: [44] Power Management version 2
Capabilities: [8c] SATA HBA <?>
Capabilities: [b0] Message Signalled Interrupts: Mask- 64bit+
Queue=0/3 Enable+
Capabilities: [ec] HyperTransport: MSI Mapping Enable+ Fixed+
Kernel driver in use: ahci
Kernel modules: ahci
00:0a.0 Ethernet controller: nVidia Corporation MCP78S [GeForce 8200] Ethernet
(rev a2)
Subsystem: Micro-Star International Co., Ltd. Device 511c
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 507
Memory at fcf7d000 (32-bit, non-prefetchable) [size=4K]
I/O ports at 9880 [size=8]
Memory at fcf7cc00 (32-bit, non-prefetchable) [size=256]
Memory at fcf7c800 (32-bit, non-prefetchable) [size=16]
Capabilities: [44] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+
Queue=0/4 Enable+
Capabilities: [6c] HyperTransport: MSI Mapping Enable+ Fixed+
Kernel driver in use: forcedeth
Kernel modules: forcedeth
00:0b.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Express
Bridge (rev a1) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: fd000000-fe8fffff
Prefetchable memory behind bridge: 00000000ce000000-00000000dfffffff
Capabilities: [40] Subsystem: Micro-Star International Co., Ltd.
Device 7511
Capabilities: [48] Power Management version 2
Capabilities: [60] HyperTransport: MSI Mapping Enable+ Fixed-
00:10.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Express
Bridge (rev a1) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=03, subordinate=04, sec-latency=0
Memory behind bridge: fe900000-fe9fffff
Capabilities: [40] Subsystem: Micro-Star International Co., Ltd.
Device 7511
Capabilities: [48] Power Management version 3
Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+
Queue=0/1 Enable+
Capabilities: [60] HyperTransport: MSI Mapping Enable+ Fixed-
Capabilities: [80] Express Root Port (Slot+), MSI 00
Kernel driver in use: pcieport-driver
00:13.0 PCI bridge: nVidia Corporation Device 077a (rev a1) (prog-if 00
[Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=05, subordinate=05, sec-latency=0
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fea00000-feafffff
Capabilities: [40] Subsystem: Micro-Star International Co., Ltd.
Device 7511
Capabilities: [48] Power Management version 3
Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+
Queue=0/1 Enable+
Capabilities: [60] HyperTransport: MSI Mapping Enable+ Fixed-
Capabilities: [80] Express Root Port (Slot+), MSI 00
Kernel driver in use: pcieport-driver
00:14.0 PCI bridge: nVidia Corporation Device 077a (rev a1) (prog-if 00
[Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=06, subordinate=06, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: feb00000-febfffff
Capabilities: [40] Subsystem: Micro-Star International Co., Ltd.
Device 7511
Capabilities: [48] Power Management version 3
Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+
Queue=0/1 Enable+
Capabilities: [60] HyperTransport: MSI Mapping Enable+ Fixed-
Capabilities: [80] Express Root Port (Slot+), MSI 00
Kernel driver in use: pcieport-driver
00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron,
Athlon64, Sempron] HyperTransport Configuration
Flags: fast devsel
Capabilities: [80] HyperTransport: Host or Secondary Interface
00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron,
Athlon64, Sempron] Address Map
Flags: fast devsel
00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron,
Athlon64, Sempron] DRAM Controller
Flags: fast devsel
00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron,
Athlon64, Sempron] Miscellaneous Control
Flags: fast devsel
Capabilities: [f0] Secure device <?>
00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron,
Athlon64, Sempron] Link Control
Flags: fast devsel
01:05.0 Serial controller: Lava Computer mfg Inc Quattro-PCI A (rev 03)
(prog-if 02 [16550])
Subsystem: Lava Computer mfg Inc Quattro-PCI A
Flags: medium devsel, IRQ 17
I/O ports at bc00 [size=8]
I/O ports at b880 [size=8]
Kernel driver in use: serial
Kernel modules: 8250_pci
01:05.1 Serial controller: Lava Computer mfg Inc Quattro-PCI B (rev 03)
(prog-if 02 [16550])
Subsystem: Lava Computer mfg Inc Quattro-PCI B
Flags: medium devsel, IRQ 17
I/O ports at b800 [size=8]
I/O ports at b480 [size=8]
Kernel driver in use: serial
Kernel modules: 8250_pci
01:06.0 Parallel controller: Lava Computer mfg Inc Lava Dual Parallel port A
(rev 03) (prog-if 01 [BiDir])
Subsystem: Lava Computer mfg Inc Lava Dual Parallel port A
Flags: medium devsel, IRQ 16
I/O ports at b400 [size=8]
Kernel modules: parport_pc
01:06.1 Parallel controller: Lava Computer mfg Inc Lava Dual Parallel port B
(rev 03) (prog-if 01 [BiDir])
Subsystem: Lava Computer mfg Inc Lava Dual Parallel port B
Flags: medium devsel, IRQ 16
I/O ports at b080 [size=8]
Kernel modules: parport_pc
01:07.0 DPIO module: Quicklogic Corporation PC Watchdog (rev 01)
Subsystem: Device 161c:046a
Flags: medium devsel
I/O ports at b000 [size=8]
Kernel driver in use: pcwd_pci
Kernel modules: pcwd_pci
02:00.0 VGA compatible controller: nVidia Corporation GeForce 8200 (rev a2)
(prog-if 00 [VGA controller])
Subsystem: Micro-Star International Co., Ltd. Device 7511
Flags: bus master, fast devsel, latency 0, IRQ 10
Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
Memory at d0000000 (64-bit, prefetchable) [size=256M]
Memory at ce000000 (64-bit, prefetchable) [size=32M]
I/O ports at cc00 [size=128]
Expansion ROM at fe8e0000 [disabled] [size=128K]
Capabilities: [60] Power Management version 2
Capabilities: [68] Message Signalled Interrupts: Mask- 64bit+
Queue=0/0 Enable-
Kernel modules: nvidiafb, nvidia
03:00.0 PCI bridge: Texas Instruments XIO2000(A)/XIO2200(A) PCI Express-to-PCI
Bridge (rev 03) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=03, secondary=04, subordinate=04, sec-latency=64
Memory behind bridge: fe900000-fe9fffff
Capabilities: [50] Power Management version 2
Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+
Queue=0/4 Enable-
Capabilities: [80] Subsystem: Gammagraphx, Inc. Device 0000
Capabilities: [90] Express PCI/PCI-X Bridge, MSI 00
04:01.0 USB Controller: NEC Corporation USB (rev 43) (prog-if 10 [OHCI])
Subsystem: NEC Corporation Hama USB 2.0 CardBus
Flags: bus master, medium devsel, latency 64, IRQ 16
Memory at fe9ff000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [40] Power Management version 2
Kernel driver in use: ohci_hcd
Kernel modules: ohci-hcd
04:01.1 USB Controller: NEC Corporation USB (rev 43) (prog-if 10 [OHCI])
Subsystem: NEC Corporation Hama USB 2.0 CardBus
Flags: bus master, medium devsel, latency 64, IRQ 19
Memory at fe9fe000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [40] Power Management version 2
Kernel driver in use: ohci_hcd
Kernel modules: ohci-hcd
04:01.2 USB Controller: NEC Corporation USB 2.0 (rev 04) (prog-if 20 [EHCI])
Subsystem: Device 1838:1074
Flags: bus master, medium devsel, latency 64, IRQ 18
Memory at fe9fdc00 (32-bit, non-prefetchable) [size=256]
Capabilities: [40] Power Management version 2
Kernel driver in use: ehci_hcd
Kernel modules: ehci-hcd
05:00.0 Ethernet controller: VIA Technologies, Inc. VT6120/VT6121/VT6122
Gigabit Ethernet Adapter (rev 81)
Subsystem: VIA Technologies, Inc. Device 0110
Flags: fast devsel, IRQ 18
I/O ports at d800 [size=256]
Memory at feaffc00 (64-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 3
Capabilities: [90] Express Endpoint, MSI 00
Capabilities: [c0] Message Signalled Interrupts: Mask+ 64bit+
Queue=0/0 Enable-
Kernel driver in use: via-velocity
Kernel modules: via-velocity
06:00.0 Ethernet controller: VIA Technologies, Inc. VT6120/VT6121/VT6122
Gigabit Ethernet Adapter (rev 82)
Subsystem: VIA Technologies, Inc. Device 0110
Flags: fast devsel, IRQ 17
I/O ports at e800 [size=256]
Memory at febffc00 (64-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 3
Capabilities: [90] Express Endpoint, MSI 00
Capabilities: [c0] Message Signalled Interrupts: Mask+ 64bit+
Queue=0/0 Enable-
Kernel driver in use: via-velocity
Kernel modules: via-velocity
=========
When the conflicting USB card is removed, Lava card works with IRQ if proper
IO and IRQ are specified:
modprobe parport_pc io=0xcc00,0xc880 irq=none,16
===
parport0: PC-style at 0xcc00 [PCSPP,TRISTATE,EPP]
parport1: PC-style at 0xc880, irq 16 [PCSPP,TRISTATE,EPP]
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2009-03-20 7:36 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <20090318143921.22B5B13A4B0@koiott.tartu-labor>
2009-03-19 13:04 ` Lava dual parallel PCI card IRQ problem Meelis Roos
2009-03-19 13:10 ` Alan Cox
2009-03-19 13:33 ` Meelis Roos
2009-03-19 13:49 ` Meelis Roos
2009-03-20 7:36 ` Meelis Roos
2009-03-13 4:51 Gabor Kovacs
2009-03-16 10:57 ` Alan Cox
2009-03-17 22:52 ` Gabor Kovacs
2009-03-18 11:35 ` Alan Cox
2009-03-19 20:41 ` Gabor Kovacs
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