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    SubjectRe: 2.6.22-rc: regression: no irda0 interface (2.6.21 was OK), smsc does not find chip
    Date
    On Saturday 16 June 2007 10:38:56 am Andrey Borzenkov wrote:
    > it appears that quirk is not even applied because PnP tells us device is not
    > active:
    >
    > [ 571.118483] pnp: PnP ACPI init
    > [ 571.118611] ACPI: bus type pnp registered
    > [ 571.158828] quirk_smc_enable: active = 0
    > [ 571.182090] pnp: PnP ACPI: found 12 devices

    Yup. That could probably be improved.

    _CRS definitely reports SIR and FIR backwards from most platforms.

    I can make the device talk by configuring it "by hand," e.g.,

    # cd /sys/bus/pnp/devices/00:0a
    # echo "set io 0x2e8-0x2ef io 0x100-0x107 irq 5 dma 1" > resources
    # echo activate > resources
    # ~/smsc
    smsc_dump: 0x24 0xfe UART1 config
    smsc_dump: 0x25 0xba SIR base (0x2e8)
    smsc_dump: 0x28 0x45 UART IRQ
    smsc_dump: 0x2b 0x20 FIR base (0x100)
    smsc_dump: 0x2c 0x01 FIR DMA
    smsc_dump: 0x0c 0x0e IRDA mode
    smsc_dump: 0x07 0x50 powerdown mode
    smsc_dump: 0x0a 0x40 toshiba mystery
    # ~/inb 0x100 8 0x100
    selecting bank 3 (fir at 0x100)
    0x0100: 0x10 0xb8 0xf2 0x00 0x51 0x00 0x00 0x03

    ("smsc" and "inb" are little test programs (attached). "smsc" dumps
    the SIO configuration, and "inb" dumps I/O ports. In this case,
    I'm looking at the FIR ports, and the values there are what smsc-ircc2
    expects.)

    Seems like it should be simple to do the same thing automatically
    in the driver or a quirk, but I haven't been able to get that to work.

    I'll be out of the office most of the time from now until July 5, but
    I'll get back to this when I return.

    Bjorn


    P.S. "reboot" doesn't seem to work on my box. I tried "reboot=b",
    "reboot=c", "reboot=h", and none of them seems to work. Does it work
    on yours?
    /*
    * Dump SMSC/LPC47N227 config, typically IRDA config
    */


    #include <stdio.h>
    #include <stdlib.h>
    #include <sys/io.h>

    /******************************************
    Keys. They should work with every SMsC SIO
    ******************************************/

    #define SMSCSIO_CFGACCESSKEY 0x55
    #define SMSCSIO_CFGEXITKEY 0xaa

    /*****************************
    * Generic SIO Flat (!?) *
    *****************************/

    /* Register 0x0d */
    #define SMSCSIOFLAT_DEVICEID_REG 0x0d

    /* Register 0x0c */
    #define SMSCSIOFLAT_UARTMODE0C_REG 0x0c
    #define SMSCSIOFLAT_UART2MODE_MASK 0x38
    #define SMSCSIOFLAT_UART2MODE_VAL_COM 0x00
    #define SMSCSIOFLAT_UART2MODE_VAL_IRDA 0x08
    #define SMSCSIOFLAT_UART2MODE_VAL_ASKIR 0x10

    /* Register 0x25 */
    #define SMSCSIOFLAT_UART2BASEADDR_REG 0x25

    /* Register 0x2b */
    #define SMSCSIOFLAT_FIRBASEADDR_REG 0x2b

    /* Register 0x2c */
    #define SMSCSIOFLAT_FIRDMASELECT_REG 0x2c
    #define SMSCSIOFLAT_FIRDMASELECT_MASK 0x0f

    /* Register 0x28 */
    #define SMSCSIOFLAT_UARTIRQSELECT_REG 0x28
    #define SMSCSIOFLAT_UART2IRQSELECT_MASK 0x0f
    #define SMSCSIOFLAT_UART1IRQSELECT_MASK 0xf0
    #define SMSCSIOFLAT_UARTIRQSELECT_VAL_NONE 0x00


    /*********************
    * LPC47N227 *
    *********************/

    #define LPC47N227_CFGACCESSKEY 0x55
    #define LPC47N227_CFGEXITKEY 0xaa

    /* Register 0x00 */
    #define LPC47N227_FDCPOWERVALIDCONF_REG 0x00
    #define LPC47N227_FDCPOWER_MASK 0x08
    #define LPC47N227_VALID_MASK 0x80

    /* Register 0x02 */
    #define LPC47N227_UART12POWER_REG 0x02
    #define LPC47N227_UART1POWERDOWN_MASK 0x08
    #define LPC47N227_UART2POWERDOWN_MASK 0x80

    /* Register 0x07 */
    #define LPC47N227_APMBOOTDRIVE_REG 0x07
    #define LPC47N227_PARPORT2AUTOPWRDOWN_MASK 0x10 /* auto power down on if set */
    #define LPC47N227_UART2AUTOPWRDOWN_MASK 0x20 /* auto power down on if set */
    #define LPC47N227_UART1AUTOPWRDOWN_MASK 0x40 /* auto power down on if set */

    /* Register 0x0c */
    #define LPC47N227_UARTMODE0C_REG 0x0c
    #define LPC47N227_UART2MODE_MASK 0x38
    #define LPC47N227_UART2MODE_VAL_COM 0x00
    #define LPC47N227_UART2MODE_VAL_IRDA 0x08
    #define LPC47N227_UART2MODE_VAL_ASKIR 0x10

    /* Register 0x0d */
    #define LPC47N227_DEVICEID_REG 0x0d
    #define LPC47N227_DEVICEID_DEFVAL 0x5a

    /* Register 0x0e */
    #define LPC47N227_REVISIONID_REG 0x0e

    /* Register 0x25 */
    #define LPC47N227_UART2BASEADDR_REG 0x25

    /* Register 0x28 */
    #define LPC47N227_UARTIRQSELECT_REG 0x28
    #define LPC47N227_UART2IRQSELECT_MASK 0x0f
    #define LPC47N227_UART1IRQSELECT_MASK 0xf0
    #define LPC47N227_UARTIRQSELECT_VAL_NONE 0x00

    /* Register 0x2b */
    #define LPC47N227_FIRBASEADDR_REG 0x2b

    /* Register 0x2c */
    #define LPC47N227_FIRDMASELECT_REG 0x2c
    #define LPC47N227_FIRDMASELECT_MASK 0x0f
    #define LPC47N227_FIRDMASELECT_VAL_DMA1 0x01 /* 47n227 has three dma channels */
    #define LPC47N227_FIRDMASELECT_VAL_DMA2 0x02
    #define LPC47N227_FIRDMASELECT_VAL_DMA3 0x03
    #define LPC47N227_FIRDMASELECT_VAL_NONE 0x0f

    static inline unsigned int smsc_read(unsigned int port, unsigned int reg)
    {
    outb(reg, port);
    return inb(port + 1);
    }

    static inline void smsc_write(unsigned int port, unsigned int reg, unsigned int
    val)
    {
    outb(reg, port);
    outb(val, port + 1);
    }

    static void smsc_dump(unsigned int iobase)
    {
    unsigned char val;

    outb(LPC47N227_CFGACCESSKEY, iobase); // enter configuration state

    val = smsc_read(iobase, 0x24);
    printf("%s: 0x%02x 0x%02x UART1 config\n", __FUNCTION__, 0x24, val);

    val = smsc_read(iobase, SMSCSIOFLAT_UART2BASEADDR_REG);
    printf("%s: 0x%02x 0x%02x SIR base (0x%x)\n", __FUNCTION__, SMSCSIOFLAT_UART2BASEADDR_REG, val, val << 2);

    val = smsc_read(iobase, SMSCSIOFLAT_UARTIRQSELECT_REG);
    printf("%s: 0x%02x 0x%02x UART IRQ\n", __FUNCTION__, SMSCSIOFLAT_UARTIRQSELECT_REG, val);

    val = smsc_read(iobase, SMSCSIOFLAT_FIRBASEADDR_REG);
    printf("%s: 0x%02x 0x%02x FIR base (0x%x)\n", __FUNCTION__, SMSCSIOFLAT_FIRBASEADDR_REG, val, val << 3);

    val = smsc_read(iobase, SMSCSIOFLAT_FIRDMASELECT_REG);
    printf("%s: 0x%02x 0x%02x FIR DMA\n", __FUNCTION__, SMSCSIOFLAT_FIRDMASELECT_REG, val);

    val = smsc_read(iobase, SMSCSIOFLAT_UARTMODE0C_REG);
    printf("%s: 0x%02x 0x%02x IRDA mode\n", __FUNCTION__, SMSCSIOFLAT_UARTMODE0C_REG, val);

    val = smsc_read(iobase, LPC47N227_APMBOOTDRIVE_REG);
    printf("%s: 0x%02x 0x%02x powerdown mode\n", __FUNCTION__, LPC47N227_APMBOOTDRIVE_REG, val);

    val = smsc_read(iobase, 0x0a);
    printf("%s: 0x%02x 0x%02x toshiba mystery\n", __FUNCTION__, 0x0a, val);

    outb(LPC47N227_CFGEXITKEY, iobase); // leave configuration state
    }

    main()
    {
    if (iopl(3) < 0) {
    perror("iopl");
    exit(-1);
    }

    /* see smsc-ircc2.c for typical addresses */
    smsc_dump(0x2e);
    exit(0);
    }
    #include <stdio.h>
    #include <stdlib.h>
    #include <sys/io.h>

    main(int argc, char **argv)
    {
    int port, length, fir;
    int val;
    unsigned char bank;

    if (argc < 3)
    exit(-1);

    port = strtoul(argv[1], NULL, 0);
    length = strtoul(argv[2], NULL, 0);

    if (iopl(3) < 0) {
    perror("iopl");
    exit(-1);
    }

    if (argc > 3) {
    fir = strtoul(argv[3], NULL, 0);
    printf("selecting bank 3 (fir at 0x%x)\n", fir);
    bank = inb(fir + 7);
    bank &= 0xf0;
    bank |= 3;
    outb(bank, fir + 7);
    }

    while (length--) {
    val = inb(port);
    if ((port & 0x7) == 0)
    printf("0x%04x:", port);
    printf(" 0x%02x", val & 0xff);
    if ((port & 0x7) == 0x7)
    printf("\n");
    port++;
    }

    exit(0);
    }
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      Last update: 2007-06-20 01:35    [W:4.267 / U:0.092 seconds]
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