Messages in this thread | | | From | Bjorn Helgaas <> | Subject | Re: 2.6.22-rc: regression: no irda0 interface (2.6.21 was OK), smsc does not find chip | Date | Tue, 19 Jun 2007 17:31:23 -0600 |
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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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