Hi. There was a discussion regarding support of OXCB950 in 2.4.x http://groups.google.com/group/mlist.linux.serial/browse_frm/thread/baf6d48e25662c5/8ab3b1ea12a43420?tvc=1&q=OXCB950#8ab3b1ea12a43420 Somehow changes did not go into the kernel. Now detailed data sheet is freely available at http://www.oxsemi.com/oxford/documents/download/standard/dsheets/oxcb950ds.pdf I own ST Lab RS232 serial port, model C-130. It is a CardBus Type II, 32-bit, 3.3V. After looking into that old discussion I've made the same changes for 2.6.16 kernel: diff -ru linux-2.6.16-orig/drivers/serial/8250_pci.c linux-2.6.16/drivers/serial/8250_pci.c --- linux-2.6.16-orig/drivers/serial/8250_pci.c 2006-03-23 13:32:17.000000000 +0200 +++ linux-2.6.16/drivers/serial/8250_pci.c 2006-03-23 13:39:08.000000000 +0200 @@ -2045,6 +2045,9 @@ { PCI_VENDOR_ID_OXSEMI, 0x950a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_b0_2_1130000 }, + { PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_CB950, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, + pbn_b0_bt_1_115200 }, { PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI954, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_b0_4_115200 }, diff -ru linux-2.6.16-orig/include/linux/pci_ids.h linux-2.6.16/include/linux/pci_ids.h --- linux-2.6.16-orig/include/linux/pci_ids.h 2006-03-23 13:32:24.000000000 +0200 +++ linux-2.6.16/include/linux/pci_ids.h 2006-03-23 13:40:32.000000000 +0200 @@ -1808,6 +1808,7 @@ #define PCI_VENDOR_ID_OXSEMI 0x1415 #define PCI_DEVICE_ID_OXSEMI_12PCI840 0x8403 #define PCI_DEVICE_ID_OXSEMI_16PCI954 0x9501 +#define PCI_DEVICE_ID_OXSEMI_CB950 0x950B /* OXCB950 Cardbus 16950 UART */ #define PCI_DEVICE_ID_OXSEMI_16PCI95N 0x9511 #define PCI_DEVICE_ID_OXSEMI_16PCI954PP 0x9513 #define PCI_DEVICE_ID_OXSEMI_16PCI952 0x9521 Is it enough for such card to work? (Unfortunately, I do not have enough experience to implement complex kernel things) After applying the patch driver recognizes the card: pccard: CardBus card inserted into slot 0 PCI: Enabling device 0000:07:00.0 (0000 -> 0003) ACPI: PCI Interrupt 0000:07:00.0[A] -> Link [LNKA] -> GSI 11 (level,low) -> IRQ 11 ttyS4: detected caps 00000700 should be 00000100 0000:07:00.0: ttyS4 at I/O 0x3010 (irq = 11) is a 16C950/954 The problem is that card only works with baud rates from 50 to 2400. The card is connected to a common external modem, which is known to work with any reasonable rates in other PC. C-Kermit>set line /dev/ttyS4 C-Kermit>set carrier-watch off C-Kermit>set speed 2400 C-Kermit>connect works... but setting any higher rate results in non responding modem. I've also tried connecting the card to devices with fixed serial parameters: 9600 8N1. No response too. Using wvdial with ANY Baud from 300 to 2400 results in: "CONNECT 230400/V34/LAPM/V42B/TX=28800/RX=31200" On Baud=2400 download speed easily exceeds 2400bps, but Baud=300 and baud=1200 speed is limited as it should be. Very strange behavior. That leads to an idea of changing divider... 'User Manual' supplied with the card says that I should use 'Automatic Crystal Detection' in WinME and '1.8432 MHz' in 2K/XP. Baud rate divider(prescaler) value in both cases should be '8.625'. It works in XP with suggested settings. As far as I know setting such things with setserial for CardBus devices is not a good idea. Any suggestions? Relevant lspci entry: 07:00.0 Serial controller: Oxford Semiconductor Ltd OXCB950 Cardbus 16950 UART (prog-if 06 [16950]) Subsystem: Oxford Semiconductor Ltd Unknown device 0001 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at 3010 [size=8] Region 1: Memory at 34000000 (32-bit, non-prefetchable) [size=4K] Region 2: I/O ports at 3000 [size=16] Region 3: Memory at 34001000 (32-bit, non-prefetchable) [size=4K] Region 4: Memory at 34002000 (32-bit, non-prefetchable) [size=4K] Capabilities: [40] Power Management version 1 Flags: PMEClk- DSI- D1- D2+ AuxCurrent=0mA PME(D0+,D1-,D2+,D3hot+,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- -- Mikhail Kolesnik ICQ: 260259143 IRC: mike_k at freenode/#crux, rusnet/#yalta Jabber: mike_k@xxxxxxxxxxxxxxxx NIC handle: MKK83-UANIC - To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
