Hi, My name is Martin van Es and I just subscribed to the DVB mailinglist because I'm currently facing a challenge that's beyond my knowledge so I hope to find some cooperative minds in the list who could point me in the right direction.
My problem is that I try to build a dual DVB-C tuner HTPC, based on an Intel D945GSEJT mini-itx motherboard. This board is equipped with only 1 PCI slot, so a PCI riser is the only solution (no single board dual DVB-C solutions exist today). The case I've bought came with a riser but that didn't work so my first attempt was to order this riser, which, they say is specifically designed for the D945GSEJT: http://www.tranquilpc-shop.co.uk/acatalog/PCI_Risers.html (top one, it's based on a IT8209R PCI Arbiter). When that didn't work I suspected there's more to this than correct hardware and started looking for solutions, including mailing a knowledgable PCI expert but even that didn't bring much relief. I must add that I'm technically inclined, just lack a background in low-level (PC) hardware programming. So far my quest has revealed the following: My 2 tunercards both get assigned a unique GSI on PCI interrupt A. Both cards get detected correctly, but as soon as the second card starts initialising the front-end it fails due to read/write timeouts on the saa7146 (i2c). The interrupt counter assigned to the second card never shows any activity (cat /proc/interrupts counter for irq 17 is 0). Here are the (most) relevant pieces of dmesg output: First the PCI initialisation. Mind the mentioning of both 0000:05:* devices (the riser slots): [ 0.234259] ACPI: PCI Root Bridge [PCI0] (0000:00) [ 0.234500] pci 0000:00:02.0: reg 10 32bit mmio: [0xdfe80000-0xdfefffff] [ 0.234520] pci 0000:00:02.0: reg 14 io port: [0xf150-0xf157] [ 0.234537] pci 0000:00:02.0: reg 18 32bit mmio pref: [0xc0000000-0xcfffffff] [ 0.234555] pci 0000:00:02.0: reg 1c 32bit mmio: [0xdff00000-0xdff3ffff] [ 0.234641] pci 0000:00:02.1: reg 10 32bit mmio: [0xdfe00000-0xdfe7ffff] [ 0.234799] pci 0000:00:1b.0: reg 10 64bit mmio: [0xffe00000-0xffe03fff] [ 0.234875] pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold [ 0.234889] pci 0000:00:1b.0: PME# disabled [ 0.235003] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold [ 0.235016] pci 0000:00:1c.0: PME# disabled [ 0.235131] pci 0000:00:1c.1: PME# supported from D0 D3hot D3cold [ 0.235144] pci 0000:00:1c.1: PME# disabled [ 0.235259] pci 0000:00:1c.2: PME# supported from D0 D3hot D3cold [ 0.235272] pci 0000:00:1c.2: PME# disabled [ 0.235387] pci 0000:00:1c.3: PME# supported from D0 D3hot D3cold [ 0.235400] pci 0000:00:1c.3: PME# disabled [ 0.235488] pci 0000:00:1d.0: reg 20 io port: [0xf0a0-0xf0bf] [ 0.235578] pci 0000:00:1d.1: reg 20 io port: [0xf080-0xf09f] [ 0.235669] pci 0000:00:1d.2: reg 20 io port: [0xf060-0xf07f] [ 0.235759] pci 0000:00:1d.3: reg 20 io port: [0xf040-0xf05f] [ 0.235856] pci 0000:00:1d.7: reg 10 32bit mmio: [0xdff41000-0xdff413ff] [ 0.235940] pci 0000:00:1d.7: PME# supported from D0 D3hot D3cold [ 0.235954] pci 0000:00:1d.7: PME# disabled [ 0.236202] pci 0000:00:1f.0: Force enabled HPET at 0xfed00000 [ 0.236221] pci 0000:00:1f.0: quirk: region 0400-047f claimed by ICH6 ACPI/GPIO/TCO [ 0.236236] pci 0000:00:1f.0: quirk: region 0500-053f claimed by ICH6 GPIO [ 0.236251] pci 0000:00:1f.0: ICH7 LPC Generic IO decode 1 PIO at 0a00 (mask 007f) [ 0.236265] pci 0000:00:1f.0: ICH7 LPC Generic IO decode 2 PIO at 1640 (mask 000f) [ 0.236352] pci 0000:00:1f.1: reg 10 io port: [0xf140-0xf147] [ 0.236371] pci 0000:00:1f.1: reg 14 io port: [0xf130-0xf133] [ 0.236390] pci 0000:00:1f.1: reg 18 io port: [0xf120-0xf127] [ 0.236408] pci 0000:00:1f.1: reg 1c io port: [0xf110-0xf113] [ 0.236426] pci 0000:00:1f.1: reg 20 io port: [0xf100-0xf10f] [ 0.236524] pci 0000:00:1f.2: reg 10 io port: [0xf0f0-0xf0f7] [ 0.236542] pci 0000:00:1f.2: reg 14 io port: [0xf0e0-0xf0e3] [ 0.236560] pci 0000:00:1f.2: reg 18 io port: [0xf0d0-0xf0d7] [ 0.236578] pci 0000:00:1f.2: reg 1c io port: [0xf0c0-0xf0c3] [ 0.236595] pci 0000:00:1f.2: reg 20 io port: [0xf020-0xf03f] [ 0.236614] pci 0000:00:1f.2: reg 24 32bit mmio: [0xdff40000-0xdff403ff] [ 0.236668] pci 0000:00:1f.2: PME# supported from D3hot [ 0.236681] pci 0000:00:1f.2: PME# disabled [ 0.236765] pci 0000:00:1f.3: reg 20 io port: [0x1180-0x119f] [ 0.236891] pci 0000:01:00.0: reg 10 io port: [0xe000-0xe0ff] [ 0.236929] pci 0000:01:00.0: reg 18 64bit mmio pref: [0xffd04000-0xffd04fff] [ 0.236959] pci 0000:01:00.0: reg 20 64bit mmio pref: [0xffd00000-0xffd03fff] [ 0.236980] pci 0000:01:00.0: reg 30 32bit mmio pref: [0xdfd00000-0xdfd1ffff] [ 0.237045] pci 0000:01:00.0: supports D1 D2 [ 0.237055] pci 0000:01:00.0: PME# supported from D0 D1 D2 D3hot D3cold [ 0.237069] pci 0000:01:00.0: PME# disabled [ 0.237163] pci 0000:00:1c.0: bridge io port: [0xe000-0xefff] [ 0.237178] pci 0000:00:1c.0: bridge 32bit mmio: [0xdfd00000-0xdfdfffff] [ 0.237198] pci 0000:00:1c.0: bridge 64bit mmio pref: [0xffd00000-0xffdfffff] [ 0.237469] pci 0000:05:00.0: reg 10 32bit mmio: [0xdfc01000-0xdfc011ff] [ 0.237578] pci 0000:05:08.0: reg 10 32bit mmio: [0xdfc00000-0xdfc001ff] [ 0.237683] pci 0000:00:1e.0: transparent bridge [ 0.237700] pci 0000:00:1e.0: bridge 32bit mmio: [0xdfc00000-0xdfcfffff] [ 0.237750] pci_bus 0000:00: on NUMA node 0 [ 0.237771] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT] [ 0.238344] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P1._PRT] [ 0.238626] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P4._PRT] [ 0.238822] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P5._PRT] [ 0.280835] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 10 *11 12 14 15) [ 0.281203] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 *10 11 12 14 15) [ 0.281564] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 *7 10 11 12 14 15) [ 0.281920] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 10 *11 12 14 15) [ 0.282279] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 *7 10 11 12 14 15) [ 0.282640] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled. [ 0.283003] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled. [ 0.283367] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 *10 11 12 14 15) And finally the initialisation of both budget_ci cards, of which only the first one succeeds: [ 9.364122] saa7146: register extension 'budget_ci dvb'. [ 9.364253] budget_ci dvb 0000:05:00.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [ 9.364334] IRQ 20/: IRQF_DISABLED is not guaranteed on shared IRQs [ 9.364417] saa7146: found saa7146 @ mem f8bd0000 (revision 1, irq 20) (0x13c2,0x101a). [ 9.364451] saa7146 (0): dma buffer size 192512 [ 9.364463] DVB: registering new adapter (TT-Budget C-1501 PCI) [ 9.404001] adapter has MAC addr = 00:d0:5c:cd:53:57 [ 9.405808] input: Budget-CI dvb ir receiver saa7146 (0) as /devices/pci0000:00/0000:00:1e.0/0000:05:00.0/input/input7 [ 9.558977] DVB: registering adapter 0 frontend 0 (Philips TDA10023 DVB-C)... [ 9.559245] budget_ci dvb 0000:05:08.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [ 9.559339] IRQ 17/: IRQF_DISABLED is not guaranteed on shared IRQs [ 9.559404] saa7146: found saa7146 @ mem f8dfa000 (revision 1, irq 17) (0x13c2,0x101a). [ 9.559429] saa7146 (1): dma buffer size 192512 [ 9.559438] DVB: registering new adapter (TT-Budget C-1501 PCI) [ 9.604093] saa7146 (1) saa7146_i2c_writeout [irq]: timed out waiting for end of xfer [ 9.632093] saa7146 (1) saa7146_i2c_writeout [irq]: timed out waiting for end of xfer [ 9.660155] saa7146 (1) saa7146_i2c_writeout [irq]: timed out waiting for end of xfer [ 9.688088] saa7146 (1) saa7146_i2c_writeout [irq]: timed out waiting for end of xfer [ 9.704110] Couldn't read from EEPROM: not there? [ 9.706068] input: Budget-CI dvb ir receiver saa7146 (1) as /devices/pci0000:00/0000:00:1e.0/0000:05:08.0/input/input9 [ 9.716109] saa7146 (1) saa7146_i2c_writeout [irq]: timed out waiting for end of xfer [ 9.744091] saa7146 (1) saa7146_i2c_writeout [irq]: timed out waiting for end of xfer [ 9.772100] saa7146 (1) saa7146_i2c_writeout [irq]: timed out waiting for end of xfer [ 9.800093] saa7146 (1) saa7146_i2c_writeout [irq]: timed out waiting for end of xfer [ 9.816139] DVB: TDA10023(-1): tda10023_writereg, writereg error (reg == 0x00, val == 0x33, ret == -5) [ 9.828080] saa7146 (1) saa7146_i2c_writeout [irq]: timed out waiting for end of xfer [ 9.856084] saa7146 (1) saa7146_i2c_writeout [irq]: timed out waiting for end of xfer [ 9.884088] saa7146 (1) saa7146_i2c_writeout [irq]: timed out waiting for end of xfer [ 9.912084] saa7146 (1) saa7146_i2c_writeout [irq]: timed out waiting for end of xfer [ 9.928117] DVB: TDA10023(-1): tda10023_readreg: readreg error (reg == 0x1a, ret == -5) [ 9.928778] budget-ci: A frontend driver was not found for device [1131:7146] subsystem [13c2:101a] Does anybody have a clue where to start looking? BIOS? (is flashed to latest!). PCI initialisation routines (which)? Or is something simply missing in the budget_ci code to catch this specific setup? Regards, Martin van Es -- if but was of any use, it would be a logic operator -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
