Hans-Frieder, > Hi Peter, hi List, > > attached is a patch that enables MSI on the cx23885. I tested this patch for a > while now on a Dvico FusionHDTV Dual Express and have not found any side > effects. It works on versions 2.6.27.x and 2.6.28. 2.6.28-gitx not tried yet. I applied your patch against trunk v4l-dvb tree on stock Ubuntu kernel 2.6.27-9. While the module loads properly when passed enable_msi=1 and /proc/interrupts as well as lspci tell me that everything should be set up fine, I am not getting any interrupts delivered as per attached output of: cat /proc/interrupts For troubleshooting purposes I have also attached the output of: dmesg | egrep -i "tv|dvb|haupp|cx|tda" /peter
CPU0 CPU1 CPU2 CPU3 0: 97 0 0 0 IO-APIC-edge timer 1: 2 0 0 0 IO-APIC-edge i8042 7: 1 0 0 0 IO-APIC-edge 8: 1 0 0 0 IO-APIC-edge rtc0 9: 0 0 0 0 IO-APIC-fasteoi acpi 14: 0 0 0 0 IO-APIC-edge pata_amd 15: 0 0 0 0 IO-APIC-edge pata_amd 19: 3 0 0 0 IO-APIC-fasteoi ohci1394 22: 0 0 0 0 IO-APIC-fasteoi ohci_hcd:usb2 23: 36617 0 0 0 IO-APIC-fasteoi ehci_hcd:usb1 2296: 80049 0 0 0 PCI-MSI-edge eth0 2297: 28609 0 0 0 PCI-MSI-edge nvidia 2298: 0 0 0 0 PCI-MSI-edge cx23885[0] 2299: 93157 0 0 0 PCI-MSI-edge HDA Intel 2300: 40654 0 0 0 PCI-MSI-edge ahci NMI: 0 0 0 0 Non-maskable interrupts LOC: 71788 53748 36915 41838 Local timer interrupts RES: 1833 1221 2251 1362 Rescheduling interrupts CAL: 8509 14113 12544 12361 function call interrupts TLB: 904 2409 1062 2674 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
[ 10.300582] cx23885 driver version 0.0.1 loaded [ 10.301146] cx23885 0000:04:00.0: PCI INT A -> Link[APC8] -> GSI 16 (level, low) -> IRQ 16 [ 10.301284] CORE cx23885[0]: subsystem: 0070:71d3, board: Hauppauge WinTV-HVR1200 [card=7,autodetected] [ 10.467050] tveeprom 0-0050: Hauppauge model 71949, rev H2E9, serial# 3390611 [ 10.467120] tveeprom 0-0050: MAC address is 00-0D-FE-33-BC-93 [ 10.467185] tveeprom 0-0050: tuner model is Philips 18271_8295 (idx 149, type 54) [ 10.467259] tveeprom 0-0050: TV standards PAL(B/G) PAL(I) SECAM(L/L') PAL(D/D1/K) ATSC/DVB Digital (eeprom 0xf4) [ 10.467337] tveeprom 0-0050: audio processor is CX23885 (idx 39) [ 10.467402] tveeprom 0-0050: decoder processor is CX23885 (idx 33) [ 10.467468] tveeprom 0-0050: has no radio [ 10.467531] cx23885[0]: hauppauge eeprom: model=71949 [ 10.467597] cx23885_dvb_register() allocating 1 frontend(s) [ 10.467687] cx23885[0]: cx23885 based dvb card [ 10.926369] tda829x 1-0042: type set to tda8295 [ 11.068189] tda18271 1-0060: creating new instance [ 11.104359] TDA18271HD/C1 detected @ 1-0060 [ 12.165988] DVB: registering new adapter (cx23885[0]) [ 12.166056] DVB: registering adapter 0 frontend 0 (NXP TDA10048HN DVB-T)... [ 12.166548] cx23885_dev_checkrevision() Hardware revision = 0xb0 [ 12.166617] cx23885[0]/0: found at 0000:04:00.0, rev: 2, irq: 16, latency: 0, mmio: 0xef800000 [ 12.166697] cx23885 0000:04:00.0: setting latency timer to 64 [ 373.247511] tda10048_firmware_upload: waiting for firmware upload (dvb-fe-tda10048-1.0.fw)... [ 373.247518] firmware: requesting dvb-fe-tda10048-1.0.fw [ 373.262265] tda10048_firmware_upload: firmware read 24878 bytes. [ 373.262270] tda10048_firmware_upload: firmware uploading [ 375.822028] tda10048_firmware_upload: firmware uploaded
04:00.0 Multimedia video controller: Conexant Systems, Inc. CX23885 PCI Video and Audio Decoder (rev 02) Subsystem: Hauppauge computer works Inc. Device 71d3 Flags: bus master, fast devsel, latency 0, IRQ 2298 Memory at ef800000 (64-bit, non-prefetchable) [size=2M] Capabilities: [40] Express Endpoint, MSI 00 Capabilities: [80] Power Management version 2 Capabilities: [90] Vital Product Data <?> Capabilities: [a0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable+ Capabilities: [100] Advanced Error Reporting <?> Capabilities: [200] Virtual Channel <?> Kernel driver in use: cx23885 Kernel modules: cx23885
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