Re: yenta_socket rapid fires interrupts

From: DHollenbeck
Date: Wed Jan 12 2005 - 18:54:05 EST



And the dmesg output. Please look at intctl. Is this our unsatisfied noise maker?



Hmm. It has I365_PC_RESET set, which does indeed not look right. Could you try just forcing it to zero in the initialization path? In fact, that's there in the 16-bit card case, but not in the CBCARD case. Something like this:

--- 1.65/drivers/pcmcia/yenta_socket.c 2004-12-01 00:14:04 -08:00
+++ edited/drivers/pcmcia/yenta_socket.c 2005-01-11 16:02:45 -08:00
@@ -260,7 +260,7 @@

/* ISA interrupt control? */
intr = exca_readb(socket, I365_INTCTL);
- intr = (intr & ~0xf);
+ intr &= I365_RING_ENA | I365_INTR_ENA;
if (!socket->cb_irq) {
intr |= state->io_irq;
bridge |= CB_BRIDGE_INTR;

should hopefully take care of it.

Linus




Linus, unfortunately that did not fix it. And I no longer think the "cause" of the interrupt is this I365_PC_RESET bit being on. At first after adding your patch, the same symptoms existed, and since both interrupts handlers were called in immediate sequence (because of the shared IRQ 11 for the two sockets), the events printk mis-led me into believing that the I386_PC_RESET bit was still the cause. (The interrupt stream begins towards the end of probing for the first socket, before the second socket is programmed. and in the events printk I could still see the I386_PC_RESET bit for the 2nd socket.) Eventually I put code into the interrupt handler to turn off that bit whenever I saw it on, regardless of which socket's interrupt handler was executing. Still the interrupt stream persists.

I thank you for your help. I have done about all I can do here, and I think there could be a bug in the yenta driver's initialization scenario. Before bailing on this card, I can go this bit further. While the list ponders this post, I am going to once again try this card in a different machine to see if it is still good. It was at last check. Please review the attached dmesg output, which I got by patching the debug printk's. The format is:

<calling function> [ <source file line number> ] <io func> <io func data args>

see below for more hints on how to interpret...

Linux Kernel Card Services
options: [pci] [cardbus]
PCI: Found IRQ 11 for device 0000:00:0d.0
PCI: Sharing IRQ 11 with 0000:00:0d.1
Yenta: CardBus bridge found at 0000:00:0d.0 [0000:0000]
yenta_config_init[ 921]config_writel_ c187a400 0044 00000000
yenta_config_init[ 922]config_writel_ c187a400 0010 fe002000
yenta_config_init[ 927]config_writew_ c187a400 0004 0087
yenta_config_init[ 930]config_writeb_ c187a400 000c 20
yenta_config_init[ 931]config_writeb_ c187a400 000d a8
yenta_config_init[ 936]config_writel_ c187a400 0018 b0040100
yenta_config_init[ 944] config_readw_ c187a400 003e 0340
yenta_config_init[ 947]config_writew_ c187a400 003e 0580
yenta_probe[1013] cb_writel_ c187a400 0004 00000000
yenta_allocate_res[ 602] config_readl_ c187a400 001c 00000000
yenta_allocate_res[ 603] config_readl_ c187a400 0020 00000000
yenta_allocate_res[ 642]config_writel_ c187a400 001c 10000000
yenta_allocate_res[ 643]config_writel_ c187a400 0020 103fffff
yenta_allocate_res[ 602] config_readl_ c187a400 0024 00000000
yenta_allocate_res[ 603] config_readl_ c187a400 0028 00000000
yenta_allocate_res[ 642]config_writel_ c187a400 0024 10400000
yenta_allocate_res[ 643]config_writel_ c187a400 0028 107fffff
yenta_allocate_res[ 602] config_readl_ c187a400 002c 00000000
yenta_allocate_res[ 603] config_readl_ c187a400 0030 00000000
yenta_allocate_res[ 642]config_writel_ c187a400 002c 00004000
yenta_allocate_res[ 643]config_writel_ c187a400 0030 000040ff
yenta_allocate_res[ 602] config_readl_ c187a400 0034 00000000
yenta_allocate_res[ 603] config_readl_ c187a400 0038 00000000
yenta_allocate_res[ 642]config_writel_ c187a400 0034 00004400
yenta_allocate_res[ 643]config_writel_ c187a400 0038 000044ff
ti12xx_override[ 598] config_readl_ c187a400 0080 28449060
Yenta: Enabling burst memory read transactions
ti12xx_override[ 602]config_writel_ c187a400 0080 2844d060
ti12xx_override[ 619] config_readb_ c187a400 0093 60
Yenta: Using CSCINT to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
ti12xx_irqroute_func0[ 335] config_readl_ c187a400 008c 00001022
ti12xx_irqroute_func0[ 336] config_readb_ c187a400 0092 64
Yenta TI: socket 0000:00:0d.0, mfunc 0x00001022, devctl 0x64
ti_init[ 291] exca_readb_ c187a400 0003 00
ti_init[ 297] exca_writeb_ c187a400 0003 10
yenta_probe_cb_irq[ 866] config_readw_ c187a400 003e 05c0
yenta_probe_cb_irq[ 868]config_writew_ c187a400 003e 0540
yenta_probe_cb_irq[ 876] exca_writeb_ c187a400 0005 01
yenta_probe_cb_irq[ 877] cb_writel_ c187a400 0000 ffffffff
yenta_probe_cb_irq[ 878] cb_writel_ c187a400 0004 00000001
yenta_probe_cb_irq[ 879] cb_writel_ c187a400 000c 00000001
yenta_probe_handler[ 843] cb_readl_ c187a400 0000 00000001
yenta_probe_handler[ 844] cb_writel_ c187a400 0000 ffffffff
yenta_probe_handler[ 845] exca_readb_ c187a400 0004 00
yenta_probe_cb_irq[ 884] cb_writel_ c187a400 0004 00000000
yenta_probe_cb_irq[ 885] exca_writeb_ c187a400 0005 00
yenta_probe_cb_irq[ 886] cb_writel_ c187a400 0000 ffffffff
yenta_probe_cb_irq[ 887] exca_readb_ c187a400 0004 00
Yenta: ti12xx_override(): socket->dev->device=ac55
Yenta: resetting I365_INTCTL's I365_RESET
ti12xx_override[ 639] exca_readb_ c187a400 0003 10
ti12xx_override[ 641] exca_writeb_ c187a400 0003 10
ti_override[ 303] exca_readb_ c187a400 0003 10
ti_override[ 307] exca_writeb_ c187a400 0003 00
yenta_probe_irq[ 801] config_readw_ c187a400 003e 0540
yenta_probe_irq[ 804]config_writew_ c187a400 003e 05c0
yenta_probe_irq[ 811] cb_writel_ c187a400 0000 ffffffff
yenta_probe_irq[ 812] cb_writel_ c187a400 0004 00000001
yenta_probe_irq[ 813] exca_writeb_ c187a400 0005 00
yenta_probe_irq[ 818] exca_writeb_ c187a400 0005 31
yenta_probe_irq[ 819] cb_writel_ c187a400 000c 00000001
yenta_probe_irq[ 821] cb_writel_ c187a400 0000 ffffffff
yenta_probe_irq[ 818] exca_writeb_ c187a400 0005 51
yenta_probe_irq[ 819] cb_writel_ c187a400 000c 00000001
yenta_probe_irq[ 821] cb_writel_ c187a400 0000 ffffffff
yenta_probe_irq[ 818] exca_writeb_ c187a400 0005 61
yenta_probe_irq[ 819] cb_writel_ c187a400 000c 00000001
yenta_probe_irq[ 821] cb_writel_ c187a400 0000 ffffffff
yenta_probe_irq[ 818] exca_writeb_ c187a400 0005 71
yenta_probe_irq[ 819] cb_writel_ c187a400 000c 00000001
yenta_probe_irq[ 821] cb_writel_ c187a400 0000 ffffffff
yenta_probe_irq[ 818] exca_writeb_ c187a400 0005 a1
yenta_probe_irq[ 819] cb_writel_ c187a400 000c 00000001
yenta_probe_irq[ 821] cb_writel_ c187a400 0000 ffffffff
yenta_probe_irq[ 823] cb_writel_ c187a400 0004 00000000
yenta_probe_irq[ 824] exca_writeb_ c187a400 0005 00
yenta_probe_irq[ 829]config_writew_ c187a400 003e 0540
Yenta: ISA IRQ mask 0x00a8, PCI irq 11
yenta_probe[1044] cb_readl_ c187a400 0008 30000006
Socket status: 30000006
yenta_sock_init[ 523] config_readw_ c187a400 003e 0540
yenta_sock_init[ 526]config_writew_ c187a400 003e 0540
yenta_sock_init[ 528] exca_writeb_ c187a400 001e 00
yenta_sock_init[ 529] exca_writeb_ c187a400 0016 00
yenta_sock_init[ 532] cb_readl_ c187a400 0008 30000006
yenta_set_power[ 264] cb_readl_ c187a400 0010 00000400
yenta_set_power[ 265] cb_writel_ c187a400 0010 00000000
yenta_set_socket[ 275] config_readw_ c187a400 003e 0540
yenta_set_socket[ 276] cb_readl_ c187a400 0008 30000006
yenta_set_socket[ 294] exca_readb_ c187a400 0003 00
yenta_set_socket[ 301] exca_writeb_ c187a400 0003 40
yenta_set_socket[ 303] exca_readb_ c187a400 0002 00
yenta_set_socket[ 307] exca_readb_ c187a400 0002 00
yenta_set_socket[ 308] exca_writeb_ c187a400 0002 40
yenta_set_socket[ 319] exca_writeb_ c187a400 0005 08
yenta_set_socket[ 320] exca_readb_ c187a400 0004 00
yenta_set_socket[ 324]config_writew_ c187a400 003e 0580
yenta_set_socket[ 326] cb_writel_ c187a400 0000 ffffffff
yenta_set_socket[ 327] cb_writel_ c187a400 0004 00000006
yenta_set_io_map[ 343] exca_readb_ c187a400 0006 00
yenta_set_io_map[ 351] exca_writew_ c187a400 0008 0000
yenta_set_io_map[ 352] exca_writew_ c187a400 000a 0001
yenta_set_io_map[ 354] exca_readb_ c187a400 0007 00
yenta_set_io_map[ 358] exca_writeb_ c187a400 0007 00
yenta_set_io_map[ 343] exca_readb_ c187a400 0006 00
yenta_set_io_map[ 351] exca_writew_ c187a400 000c 0000
yenta_set_io_map[ 352] exca_writew_ c187a400 000e 0001
yenta_set_io_map[ 354] exca_readb_ c187a400 0007 00
yenta_set_io_map[ 358] exca_writeb_ c187a400 0007 00
yenta_set_mem_map[ 386] exca_readb_ c187a400 0006 00
yenta_set_mem_map[ 392] exca_writeb_ c187a400 0040 00
yenta_set_mem_map[ 399] exca_writew_ c187a400 0010 0000
yenta_set_mem_map[ 408] exca_writew_ c187a400 0012 0000
yenta_set_mem_map[ 415] exca_writew_ c187a400 0014 0000
yenta_set_mem_map[ 386] exca_readb_ c187a400 0006 00
yenta_set_mem_map[ 392] exca_writeb_ c187a400 0041 00
yenta_set_mem_map[ 399] exca_writew_ c187a400 0018 0000
yenta_set_mem_map[ 408] exca_writew_ c187a400 001a 0000
yenta_set_mem_map[ 415] exca_writew_ c187a400 001c 0000
yenta_set_mem_map[ 386] exca_readb_ c187a400 0006 00
yenta_set_mem_map[ 392] exca_writeb_ c187a400 0042 00
yenta_set_mem_map[ 399] exca_writew_ c187a400 0020 0000
yenta_set_mem_map[ 408] exca_writew_ c187a400 0022 0000
yenta_set_mem_map[ 415] exca_writew_ c187a400 0024 0000
yenta_set_mem_map[ 386] exca_readb_ c187a400 0006 00
yenta_set_mem_map[ 392] exca_writeb_ c187a400 0043 00
yenta_set_mem_map[ 399] exca_writew_ c187a400 0028 0000
yenta_set_mem_map[ 408] exca_writew_ c187a400 002a 0000
yenta_set_mem_map[ 415] exca_writew_ c187a400 002c 0000
yenta_set_mem_map[ 386] exca_readb_ c187a400 0006 00
yenta_set_mem_map[ 392] exca_writeb_ c187a400 0044 00
yenta_set_mem_map[ 399] exca_writew_ c187a400 0030 0000
yenta_set_mem_map[ 408] exca_writew_ c187a400 0032 0000
yenta_set_mem_map[ 415] exca_writew_ c187a400 0034 0000
ti_init[ 291] exca_readb_ c187a400 0003 40
ti_init[ 297] exca_writeb_ c187a400 0003 10
yenta_sock_init[ 543] cb_writel_ c187a400 0004 00000006
yenta_set_power[ 264] cb_readl_ c187a400 0010 00000400
yenta_set_power[ 265] cb_writel_ c187a400 0010 00000000
yenta_set_socket[ 275] config_readw_ c187a400 003e 05c0
yenta_set_socket[ 276] cb_readl_ c187a400 0008 30000006
yenta_set_socket[ 294] exca_readb_ c187a400 0003 10
yenta_set_socket[ 301] exca_writeb_ c187a400 0003 50
yenta_set_socket[ 303] exca_readb_ c187a400 0002 00
yenta_set_socket[ 307] exca_readb_ c187a400 0002 00
yenta_set_socket[ 308] exca_writeb_ c187a400 0002 40
yenta_set_socket[ 319] exca_writeb_ c187a400 0005 08
yenta_set_socket[ 320] exca_readb_ c187a400 0004 00
yenta_set_socket[ 324]config_writew_ c187a400 003e 0580
yenta_set_socket[ 326] cb_writel_ c187a400 0000 ffffffff
yenta_set_socket[ 327] cb_writel_ c187a400 0004 00000006
PCI: Found IRQ 11 for device 0000:00:0d.1
PCI: Sharing IRQ 11 with 0000:00:0d.0
Yenta: CardBus bridge found at 0000:00:0d.1 [0000:0000]
yenta_config_init[ 921]config_writel_ c187a000 0044 00000000
yenta_config_init[ 922]config_writel_ c187a000 0010 fe003000
yenta_config_init[ 927]config_writew_ c187a000 0004 0087
yenta_config_init[ 930]config_writeb_ c187a000 000c 20
yenta_config_init[ 931]config_writeb_ c187a000 000d a8
yenta_config_init[ 936]config_writel_ c187a000 0018 b0080500
yenta_config_init[ 944] config_readw_ c187a000 003e 0340
yenta_config_init[ 947]config_writew_ c187a000 003e 0580
yenta_probe[1013] cb_writel_ c187a000 0004 00000000
yenta_allocate_res[ 602] config_readl_ c187a000 001c 00000000
yenta_allocate_res[ 603] config_readl_ c187a000 0020 00000000
yenta_allocate_res[ 642]config_writel_ c187a000 001c 10800000
yenta_allocate_res[ 643]config_writel_ c187a000 0020 10bfffff
yenta_allocate_res[ 602] config_readl_ c187a000 0024 00000000
yenta_allocate_res[ 603] config_readl_ c187a000 0028 00000000
yenta_allocate_res[ 642]config_writel_ c187a000 0024 10c00000
yenta_allocate_res[ 643]config_writel_ c187a000 0028 10ffffff
yenta_allocate_res[ 602] config_readl_ c187a000 002c 00000000
yenta_allocate_res[ 603] config_readl_ c187a000 0030 00000000
yenta_allocate_res[ 642]config_writel_ c187a000 002c 00004800
yenta_allocate_res[ 643]config_writel_ c187a000 0030 000048ff
yenta_allocate_res[ 602] config_readl_ c187a000 0034 00000000
yenta_allocate_res[ 603] config_readl_ c187a000 0038 00000000
yenta_allocate_res[ 642]config_writel_ c187a000 0034 00004c00
yenta_allocate_res[ 643]config_writel_ c187a000 0038 00004cff
ti12xx_override[ 598] config_readl_ c187a000 0080 2844d060
ti12xx_override[ 619] config_readb_ c187a000 0093 60
Yenta: Using CSCINT to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
ti12xx_irqroute_func1[ 494] config_readl_ c187a000 008c 00001022
ti12xx_irqroute_func1[ 495] config_readb_ c187a000 0092 64
Yenta TI: socket 0000:00:0d.1, mfunc 0x00001022, devctl 0x64
ti_init[ 291] exca_readb_ c187a000 0003 00
ti_init[ 297] exca_writeb_ c187a000 0003 10
yenta_probe_cb_irq[ 866] config_readw_ c187a000 003e 05c0
yenta_probe_cb_irq[ 868]config_writew_ c187a000 003e 0540
yenta_probe_cb_irq[ 876] exca_writeb_ c187a000 0005 01
yenta_probe_cb_irq[ 877] cb_writel_ c187a000 0000 ffffffff
yenta_probe_cb_irq[ 878] cb_writel_ c187a000 0004 00000001
yenta_probe_cb_irq[ 879] cb_writel_ c187a000 000c 00000001
yenta_events[ 430] cb_readl_ c187a400 0000 00000000
yenta_events[ 431] cb_writel_ c187a400 0000 00000000
yenta_events[ 433] exca_readb_ c187a400 0004 00
yenta_events[ 437] exca_readb_ c187a400 0003 50
yenta_events[ 441] exca_writeb_ c187a400 0003 10
yenta_events[ 463] cb_readl_ c187a400 0008 30000006
yenta: c187a400 cb_event 00000000 state 30000006 csc 00 intctl 50 events 00000040
yenta_probe_handler[ 843] cb_readl_ c187a000 0000 00000001
yenta_probe_handler[ 844] cb_writel_ c187a000 0000 ffffffff
yenta_probe_handler[ 845] exca_readb_ c187a000 0004 00
yenta_get_status[ 161] cb_readl_ c187a400 0008 30000006
yenta_get_status[ 174] exca_readb_ c187a400 0001 00
yenta_get_status[ 176] exca_readb_ c187a400 0003 10
yenta_probe_cb_irq[ 884] cb_writel_ c187a000 0004 00000000
yenta_probe_cb_irq[ 885] exca_writeb_ c187a000 0005 00
yenta_probe_cb_irq[ 886] cb_writel_ c187a000 0000 ffffffff
yenta_probe_cb_irq[ 887] exca_readb_ c187a000 0004 00
Yenta: ti12xx_override(): socket->dev->device=ac55
Yenta: resetting I365_INTCTL's I365_RESET
ti12xx_override[ 639] exca_readb_ c187a000 0003 10
ti12xx_override[ 641] exca_writeb_ c187a000 0003 10
ti_override[ 303] exca_readb_ c187a000 0003 10
ti_override[ 307] exca_writeb_ c187a000 0003 00
yenta_probe_irq[ 801] config_readw_ c187a000 003e 0540
yenta_probe_irq[ 804]config_writew_ c187a000 003e 05c0
yenta_probe_irq[ 811] cb_writel_ c187a000 0000 ffffffff
yenta_probe_irq[ 812] cb_writel_ c187a000 0004 00000001
yenta_probe_irq[ 813] exca_writeb_ c187a000 0005 00
yenta_probe_irq[ 818] exca_writeb_ c187a000 0005 31
yenta_probe_irq[ 819] cb_writel_ c187a000 000c 00000001
yenta_probe_irq[ 821] cb_writel_ c187a000 0000 ffffffff
yenta_probe_irq[ 818] exca_writeb_ c187a000 0005 51
yenta_probe_irq[ 819] cb_writel_ c187a000 000c 00000001
yenta_probe_irq[ 821] cb_writel_ c187a000 0000 ffffffff
yenta_probe_irq[ 818] exca_writeb_ c187a000 0005 61
yenta_probe_irq[ 819] cb_writel_ c187a000 000c 00000001
yenta_probe_irq[ 821] cb_writel_ c187a000 0000 ffffffff
yenta_probe_irq[ 818] exca_writeb_ c187a000 0005 71
yenta_probe_irq[ 819] cb_writel_ c187a000 000c 00000001
yenta_probe_irq[ 821] cb_writel_ c187a000 0000 ffffffff
yenta_probe_irq[ 818] exca_writeb_ c187a000 0005 a1
yenta_probe_irq[ 819] cb_writel_ c187a000 000c 00000001
yenta_probe_irq[ 821] cb_writel_ c187a000 0000 ffffffff
yenta_probe_irq[ 823] cb_writel_ c187a000 0004 00000000
yenta_probe_irq[ 824] exca_writeb_ c187a000 0005 00
yenta_probe_irq[ 829]config_writew_ c187a000 003e 0540
Yenta: ISA IRQ mask 0x00a8, PCI irq 11
yenta_probe[1044] cb_readl_ c187a000 0008 30000020
Socket status: 30000020
yenta_sock_init[ 523] config_readw_ c187a000 003e 0540
yenta_sock_init[ 526]config_writew_ c187a000 003e 0540
yenta_sock_init[ 528] exca_writeb_ c187a000 001e 00
yenta_sock_init[ 529] exca_writeb_ c187a000 0016 00
yenta_sock_init[ 532] cb_readl_ c187a000 0008 30000020
yenta_sock_init[ 535] cb_writel_ c187a000 000c 00004000
yenta_set_power[ 264] cb_readl_ c187a000 0010 00000400
yenta_set_power[ 265] cb_writel_ c187a000 0010 00000000
yenta_set_socket[ 275] config_readw_ c187a000 003e 0540
yenta_set_socket[ 276] cb_readl_ c187a000 0008 30000820
yenta_set_socket[ 281] exca_readb_ c187a000 0003 00
yenta: CBCARD: I365_INTCTL=00 state->io_irq=00
yenta_set_socket[ 290] exca_writeb_ c187a000 0003 00
yenta_set_socket[ 324]config_writew_ c187a000 003e 0500
yenta_set_socket[ 326] cb_writel_ c187a000 0000 ffffffff
yenta_set_socket[ 327] cb_writel_ c187a000 0004 00000006
yenta_set_io_map[ 343] exca_readb_ c187a000 0006 00
yenta_set_io_map[ 351] exca_writew_ c187a000 0008 0000
yenta_set_io_map[ 352] exca_writew_ c187a000 000a 0001
yenta_set_io_map[ 354] exca_readb_ c187a000 0007 00
yenta_set_io_map[ 358] exca_writeb_ c187a000 0007 00
yenta_set_io_map[ 343] exca_readb_ c187a000 0006 00
yenta_set_io_map[ 351] exca_writew_ c187a000 000c 0000
yenta_set_io_map[ 352] exca_writew_ c187a000 000e 0001
yenta_set_io_map[ 354] exca_readb_ c187a000 0007 00
yenta_set_io_map[ 358] exca_writeb_ c187a000 0007 00
yenta_set_mem_map[ 386] exca_readb_ c187a000 0006 00
yenta_set_mem_map[ 392] exca_writeb_ c187a000 0040 00
yenta_set_mem_map[ 399] exca_writew_ c187a000 0010 0000
yenta_set_mem_map[ 408] exca_writew_ c187a000 0012 0000
yenta_set_mem_map[ 415] exca_writew_ c187a000 0014 0000
yenta_set_mem_map[ 386] exca_readb_ c187a000 0006 00
yenta_set_mem_map[ 392] exca_writeb_ c187a000 0041 00
yenta_set_mem_map[ 399] exca_writew_ c187a000 0018 0000
yenta_set_mem_map[ 408] exca_writew_ c187a000 001a 0000
yenta_set_mem_map[ 415] exca_writew_ c187a000 001c 0000
yenta_set_mem_map[ 386] exca_readb_ c187a000 0006 00
yenta_set_mem_map[ 392] exca_writeb_ c187a000 0042 00
yenta_set_mem_map[ 399] exca_writew_ c187a000 0020 0000
yenta_set_mem_map[ 408] exca_writew_ c187a000 0022 0000
yenta_set_mem_map[ 415] exca_writew_ c187a000 0024 0000
yenta_set_mem_map[ 386] exca_readb_ c187a000 0006 00
yenta_set_mem_map[ 392] exca_writeb_ c187a000 0043 00
yenta_set_mem_map[ 399] exca_writew_ c187a000 0028 0000
yenta_set_mem_map[ 408] exca_writew_ c187a000 002a 0000
yenta_set_mem_map[ 415] exca_writew_ c187a000 002c 0000
yenta_set_mem_map[ 386] exca_readb_ c187a000 0006 00
yenta_set_mem_map[ 392] exca_writeb_ c187a000 0044 00
yenta_set_mem_map[ 399] exca_writew_ c187a000 0030 0000
yenta_set_mem_map[ 408] exca_writew_ c187a000 0032 0000
yenta_set_mem_map[ 415] exca_writew_ c187a000 0034 0000
ti_init[ 291] exca_readb_ c187a000 0003 00
ti_init[ 297] exca_writeb_ c187a000 0003 10
yenta_sock_init[ 543] cb_writel_ c187a000 0004 00000006
yenta_set_power[ 264] cb_readl_ c187a000 0010 00000400
yenta_set_power[ 265] cb_writel_ c187a000 0010 00000000
yenta_set_socket[ 275] config_readw_ c187a000 003e 0540
yenta_set_socket[ 276] cb_readl_ c187a000 0008 30000820
yenta_set_socket[ 281] exca_readb_ c187a000 0003 10
yenta: CBCARD: I365_INTCTL=10 state->io_irq=00
yenta_set_socket[ 290] exca_writeb_ c187a000 0003 10
yenta_set_socket[ 324]config_writew_ c187a000 003e 0500
yenta_set_socket[ 326] cb_writel_ c187a000 0000 ffffffff
yenta_set_socket[ 327] cb_writel_ c187a000 0004 00000006
yenta_get_status[ 161] cb_readl_ c187a000 0008 30000820
yenta_get_status[ 161] cb_readl_ c187a000 0008 30000820
yenta_get_status[ 161] cb_readl_ c187a000 0008 30000820
yenta_set_power[ 264] cb_readl_ c187a000 0010 00000400
yenta_set_power[ 265] cb_writel_ c187a000 0010 00000033
yenta_set_socket[ 275] config_readw_ c187a000 003e 0540
yenta_set_socket[ 276] cb_readl_ c187a000 0008 30000820
yenta_set_socket[ 281] exca_readb_ c187a000 0003 10
yenta: CBCARD: I365_INTCTL=10 state->io_irq=00
yenta_set_socket[ 290] exca_writeb_ c187a000 0003 10
yenta_set_socket[ 324]config_writew_ c187a000 003e 0500
yenta_set_socket[ 326] cb_writel_ c187a000 0000 ffffffff
yenta_set_socket[ 327] cb_writel_ c187a000 0004 00000006
yenta_events[ 430] cb_readl_ c187a400 0000 00000000
yenta_events[ 431] cb_writel_ c187a400 0000 00000000
yenta_events[ 433] exca_readb_ c187a400 0004 00
yenta_events[ 437] exca_readb_ c187a400 0003 10
yenta_events[ 463] cb_readl_ c187a400 0008 30000006
yenta: c187a400 cb_event 00000000 state 30000006 csc 00 intctl 10 events 00000000
yenta_events[ 430] cb_readl_ c187a000 0000 00000008
yenta_events[ 431] cb_writel_ c187a000 0000 00000008
yenta_events[ 433] exca_readb_ c187a000 0004 00
yenta_events[ 437] exca_readb_ c187a000 0003 10
yenta_events[ 463] cb_readl_ c187a000 0008 30000829
yenta: c187a000 cb_event 00000008 state 30000829 csc 00 intctl 10 events 00000000
yenta_events[ 430] cb_readl_ c187a400 0000 00000000
yenta_events[ 431] cb_writel_ c187a400 0000 00000000
yenta_events[ 433] exca_readb_ c187a400 0004 00
yenta_events[ 437] exca_readb_ c187a400 0003 10
yenta_events[ 463] cb_readl_ c187a400 0008 30000006
yenta: c187a400 cb_event 00000000 state 30000006 csc 00 intctl 10 events 00000000
yenta_events[ 430] cb_readl_ c187a000 0000 00000000
yenta_events[ 431] cb_writel_ c187a000 0000 00000000
yenta_events[ 433] exca_readb_ c187a000 0004 00
yenta_events[ 437] exca_readb_ c187a000 0003 10
irq 11: nobody cared (try booting with the "irqpoll" option.
[<c012b752>] __report_bad_irq+0x22/0x90
[<c012b868>] note_interrupt+0x78/0xc0
[<c012b11d>] __do_IRQ+0x13d/0x160
[<c0104aba>] do_IRQ+0x1a/0x30
[<c010337a>] common_interrupt+0x1a/0x20
[<c012007b>] sys_getresgid+0xb/0xa0
[<c0117750>] __do_softirq+0x30/0xa0
[<c0120060>] sys_setresgid+0x120/0x130
[<c01177f5>] do_softirq+0x35/0x40
[<c012af65>] irq_exit+0x35/0x40
[<c0104abf>] do_IRQ+0x1f/0x30
[<c010337a>] common_interrupt+0x1a/0x20
[<c01005b0>] default_idle+0x0/0x40
[<c038007b>] ic_setup_if+0xcb/0xd0
[<c01005d3>] default_idle+0x23/0x40
[<c010064c>] cpu_idle+0x1c/0x50
[<c036873c>] start_kernel+0x13c/0x160
handlers:
[<c284f5c0>] (yenta_interrupt+0x0/0x40 [yenta_socket])
[<c284f5c0>] (yenta_interrupt+0x0/0x40 [yenta_socket])
Disabling IRQ #11
yenta: CBCARD: I365_INTCTL=10 state->io_irq=00
yenta: CBCARD: I365_INTCTL=10 state->io_irq=00
root@EMBEDDED[~]#
root@EMBEDDED[~]#


To make sense of the line numbers, you could take a copy of yenta_socket.c 2.6.10 out of tree to a tmp dir, and apply the following patch. Some of the line numbers are header file relative, but most all are based in yenta_socket.c.

--- yenta_socket..orig 2004-12-24 15:35:00.000000000 -0600
+++ yenta_socket.c 2005-01-12 14:58:24.000000000 -0600
@@ -29,12 +29,6 @@
#include "i82365.h"


-#if 0
-#define debug(x,args...) printk(KERN_DEBUG "%s: " x, __func__ , ##args)
-#else
-#define debug(x,args...)
-#endif
-
/* Don't ask.. */
#define to_cycles(ns) ((ns)/120)
#define to_ns(cycles) ((cycles)*120)
@@ -42,95 +36,120 @@
static int yenta_probe_cb_irq(struct yenta_socket *socket);


+#if 1
+static int debugOn=1;
+#define debug(f,l,x,args...) do { if(debugOn) printk(KERN_DEBUG "%20s[%4d]%14s " x,f, l,__func__,##args); } while(0)
+#else
+#define debug(f,l,x,args...)
+#endif
+
+/* pass "line" numbers to inline static functions for debugging output */
+#define cb_readl(s, r) cb_readl_(__func__,__LINE__,s,r)
+#define cb_writel(s,r,v) cb_writel_(__func__,__LINE__,s,r,v)
+
+#define config_readb(s,o) config_readb_(__func__,__LINE__,s,o)
+#define config_writeb(s,o,v) config_writeb_(__func__,__LINE__,s,o,v)
+#define config_readw(s,o) config_readw_(__func__,__LINE__,s,o)
+#define config_writew(s,o,v) config_writew_(__func__,__LINE__,s,o,v)
+#define config_readl(s,o) config_readl_(__func__,__LINE__,s,o)
+#define config_writel(s,o,v) config_writel_(__func__,__LINE__,s,o,v)
+
+#define exca_readb(s,r) exca_readb_(__func__,__LINE__,s,r)
+#define exca_readw(s,r) exca_readw_(__func__,__LINE__,s,r)
+#define exca_writeb(s,r,v) exca_writeb_(__func__,__LINE__,s,r,v)
+#define exca_writew(s,r,v) exca_writew_(__func__,__LINE__,s,r,v)
+
+
/*
* Generate easy-to-use ways of reading a cardbus sockets
* regular memory space ("cb_xxx"), configuration space
* ("config_xxx") and compatibility space ("exca_xxxx")
*/
-static inline u32 cb_readl(struct yenta_socket *socket, unsigned reg)
+static inline u32 cb_readl_(const char* f, int line, struct yenta_socket *socket, unsigned reg)
{
u32 val = readl(socket->base + reg);
- debug("%p %04x %08x\n", socket, reg, val);
+ debug(f,line, "%p %04x %08x\n", socket, reg, val);
return val;
}

-static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val)
+static inline void cb_writel_(const char* f, int line, struct yenta_socket *socket, unsigned reg, u32 val)
{
- debug("%p %04x %08x\n", socket, reg, val);
+ debug(f,line, "%p %04x %08x\n", socket, reg, val);
writel(val, socket->base + reg);
}

-static inline u8 config_readb(struct yenta_socket *socket, unsigned offset)
+static inline u8 config_readb_(const char* f, int line, struct yenta_socket *socket, unsigned offset)
{
u8 val;
pci_read_config_byte(socket->dev, offset, &val);
- debug("%p %04x %02x\n", socket, offset, val);
+ debug(f,line, "%p %04x %02x\n", socket, offset, val);
return val;
}

-static inline u16 config_readw(struct yenta_socket *socket, unsigned offset)
+static inline u16 config_readw_(const char* f, int line, struct yenta_socket *socket, unsigned offset)
{
u16 val;
pci_read_config_word(socket->dev, offset, &val);
- debug("%p %04x %04x\n", socket, offset, val);
+ debug(f,line, "%p %04x %04x\n", socket, offset, val);
return val;
}

-static inline u32 config_readl(struct yenta_socket *socket, unsigned offset)
+static inline u32 config_readl_(const char* f, int line, struct yenta_socket *socket, unsigned offset)
{
u32 val;
pci_read_config_dword(socket->dev, offset, &val);
- debug("%p %04x %08x\n", socket, offset, val);
+ debug(f,line, "%p %04x %08x\n", socket, offset, val);
return val;
}

-static inline void config_writeb(struct yenta_socket *socket, unsigned offset, u8 val)
+static inline void config_writeb_(const char* f, int line, struct yenta_socket *socket, unsigned offset, u8 val)
{
- debug("%p %04x %02x\n", socket, offset, val);
+ debug(f,line, "%p %04x %02x\n", socket, offset, val);
pci_write_config_byte(socket->dev, offset, val);
}

-static inline void config_writew(struct yenta_socket *socket, unsigned offset, u16 val)
+static inline void config_writew_(const char* f, int line, struct yenta_socket *socket, unsigned offset, u16 val)
{
- debug("%p %04x %04x\n", socket, offset, val);
+ debug(f,line, "%p %04x %04x\n", socket, offset, val);
pci_write_config_word(socket->dev, offset, val);
}

-static inline void config_writel(struct yenta_socket *socket, unsigned offset, u32 val)
+static inline void config_writel_(const char* f, int line, struct yenta_socket *socket, unsigned offset, u32 val)
{
- debug("%p %04x %08x\n", socket, offset, val);
+ debug(f,line, "%p %04x %08x\n", socket, offset, val);
pci_write_config_dword(socket->dev, offset, val);
}

-static inline u8 exca_readb(struct yenta_socket *socket, unsigned reg)
+static inline u8 exca_readb_(const char* f, int line, struct yenta_socket *socket, unsigned reg)
{
u8 val = readb(socket->base + 0x800 + reg);
- debug("%p %04x %02x\n", socket, reg, val);
+ debug(f,line, "%p %04x %02x\n", socket, reg, val);
return val;
}

-static inline u8 exca_readw(struct yenta_socket *socket, unsigned reg)
+static inline u8 exca_readw_(const char* f, int line, struct yenta_socket *socket, unsigned reg)
{
u16 val;
val = readb(socket->base + 0x800 + reg);
val |= readb(socket->base + 0x800 + reg + 1) << 8;
- debug("%p %04x %04x\n", socket, reg, val);
+ debug(f,line, "%p %04x %04x\n", socket, reg, val);
return val;
}

-static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val)
+static inline void exca_writeb_(const char* f, int line, struct yenta_socket *socket, unsigned reg, u8 val)
{
- debug("%p %04x %02x\n", socket, reg, val);
+ debug(f,line, "%p %04x %02x\n", socket, reg, val);
writeb(val, socket->base + 0x800 + reg);
}

-static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val)
+static void exca_writew_(const char* f, int line, struct yenta_socket *socket, unsigned reg, u16 val)
{
- debug("%p %04x %04x\n", socket, reg, val);
+ debug(f,line, "%p %04x %04x\n", socket, reg, val);
writeb(val, socket->base + 0x800 + reg);
writeb(val >> 8, socket->base + 0x800 + reg + 1);
}

+
/*
* Ugh, mixed-mode cardbus and 16-bit pccard state: things depend
* on what kind of card is inserted..
@@ -260,11 +279,14 @@

/* ISA interrupt control? */
intr = exca_readb(socket, I365_INTCTL);
- intr = (intr & ~0xf);
+// intr = (intr & ~0xf);
+ intr &= I365_RING_ENA | I365_INTR_ENA; if (!socket->cb_irq) {
intr |= state->io_irq;
bridge |= CB_BRIDGE_INTR;
}
+ printk("yenta: CBCARD: I365_INTCTL=%02x state->io_irq=%02x\n",
+ intr, state->io_irq );
exca_writeb(socket, I365_INTCTL, intr);
} else {
u8 reg;
@@ -401,7 +423,7 @@
static unsigned int yenta_events(struct yenta_socket *socket)
{
u8 csc;
- u32 cb_event;
+ u32 cb_event, intctl;
unsigned int events;

/* Clear interrupt status for the event */
@@ -412,13 +434,41 @@

events = (cb_event & (CB_CD1EVENT | CB_CD2EVENT)) ? SS_DETECT : 0 ;
events |= (csc & I365_CSC_DETECT) ? SS_DETECT : 0;
- if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) {
+ intctl = exca_readb(socket, I365_INTCTL);
+
+ if (intctl & I365_PC_RESET ) {
+ events |= SS_READY; /* ensure a non-zero return */
+ exca_writeb(socket, I365_INTCTL, intctl & ~I365_PC_RESET);
+ } + + if (intctl & I365_PC_IOCARD) {
events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0;
+ } else {
events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0;
events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0;
events |= (csc & I365_CSC_READY) ? SS_READY : 0;
}
+ +/* RHH: per Linus */
+#if 1
+ {
+ u32 cb_state;
+ + static int intCount = 4;
+ + if( intCount > 0 )
+ {
+ --intCount;
+ cb_state = cb_readl(socket, CB_SOCKET_STATE);
+ printk("yenta: %p cb_event %08x state %08x csc %02x intctl %02x events %08x\n",
+ socket, cb_event, cb_state, csc, intctl, events );
+ }
+ else
+ debugOn = 0;
+ }
+#endif + return events;
}


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