dmi_scan.c

内核linux2.4.20,可跟rtlinux3.2打补丁 组成实时linux系统,编译内核

	dmi_broken |= BROKEN_ACPI_Sx;
	return 0;
}

/*
 * Toshiba keyboard likes to repeat keys when they are not repeated.
 */

static __init int broken_toshiba_keyboard(struct dmi_blacklist *d)
{
	printk(KERN_WARNING "Toshiba with broken keyboard detected. If your keyboard sometimes generates 3 keypresses instead of one, contact [e-mail]\n");
	return 0;
}

/*
 * Toshiba fails to preserve interrupts over S1
 */

static __init int init_ints_after_s1(struct dmi_blacklist *d)
{
	printk(KERN_WARNING "Toshiba with broken S1 detected.\n");
	dmi_broken |= BROKEN_INIT_AFTER_S1;
	return 0;
}

/*
 * Some Bioses enable the PS/2 mouse (touchpad) at resume, even if it
 * was disabled before the suspend. Linux gets terribly confused by that.
 */

typedef void (pm_kbd_func) (void);

static __init int broken_ps2_resume(struct dmi_blacklist *d)
{
#ifdef CONFIG_VT
	if (pm_kbd_request_override == NULL)
	{
		pm_kbd_request_override = pckbd_pm_resume;
		printk(KERN_INFO "%s machine detected. Mousepad Resume Bug workaround enabled.\n", d->ident);
	}
#endif
	return 0;
}


/*
 *	Simple "print if true" callback
 */
 
static __init int print_if_true(struct dmi_blacklist *d)
{
	printk("%s\n", d->ident);
	return 0;
}

/*
 *	Process the DMI blacklists
 */
 

/*
 *	This will be expanded over time to force things like the APM 
 *	interrupt mask settings according to the laptop
 */
 
static __initdata struct dmi_blacklist dmi_blacklist[]={
#if 0
	{ disable_ide_dma, "KT7", {	/* Overbroad right now - kill DMA on problem KT7 boards */
			MATCH(DMI_PRODUCT_NAME, "KT7-RAID"),
			NO_MATCH, NO_MATCH, NO_MATCH
			} },
#endif			
	{ broken_ps2_resume, "Dell Latitude C600", {	/* Handle problems with APM on the C600 */
		        MATCH(DMI_SYS_VENDOR, "Dell"),
			MATCH(DMI_PRODUCT_NAME, "Latitude C600"),
			NO_MATCH, NO_MATCH
	                } },
	{ broken_apm_power, "Dell Inspiron 5000e", {	/* Handle problems with APM on Inspiron 5000e */
			MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
			MATCH(DMI_BIOS_VERSION, "A04"),
			MATCH(DMI_BIOS_DATE, "08/24/2000"), NO_MATCH
			} },
	{ set_realmode_power_off, "Award Software v4.60 PGMA", {	/* broken PM poweroff bios */
			MATCH(DMI_BIOS_VENDOR, "Award Software International, Inc."),
			MATCH(DMI_BIOS_VERSION, "4.60 PGMA"),
			MATCH(DMI_BIOS_DATE, "134526184"), NO_MATCH
			} },
	{ set_smp_bios_reboot, "Dell PowerEdge 1300", {	/* Handle problems with rebooting on Dell 1300's */
			MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
			MATCH(DMI_PRODUCT_NAME, "PowerEdge 1300/"),
			NO_MATCH, NO_MATCH
			} },
	{ set_bios_reboot, "Dell PowerEdge 300", {	/* Handle problems with rebooting on Dell 1300's */
			MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
			MATCH(DMI_PRODUCT_NAME, "PowerEdge 300/"),
			NO_MATCH, NO_MATCH
			} },
	{ set_bios_reboot, "Dell PowerEdge 2400", {  /* Handle problems with rebooting on Dell 300/800's */
			MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
			MATCH(DMI_PRODUCT_NAME, "PowerEdge 2400"),
			NO_MATCH, NO_MATCH
			} },
	{ set_apm_ints, "Dell Inspiron", {	/* Allow interrupts during suspend on Dell Inspiron laptops*/
			MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
			MATCH(DMI_PRODUCT_NAME, "Inspiron 4000"),
			NO_MATCH, NO_MATCH
			} },
	{ set_apm_ints, "Compaq 12XL125", {	/* Allow interrupts during suspend on Compaq Laptops*/
			MATCH(DMI_SYS_VENDOR, "Compaq"),
			MATCH(DMI_PRODUCT_NAME, "Compaq PC"),
			MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
			MATCH(DMI_BIOS_VERSION,"4.06")
			} },
	{ set_apm_ints, "ASUSTeK", {   /* Allow interrupts during APM or the clock goes slow */
			MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
			MATCH(DMI_PRODUCT_NAME, "L8400K series Notebook PC"),
			NO_MATCH, NO_MATCH
			} },					
	{ apm_is_horked, "Trigem Delhi3", { /* APM crashes */
			MATCH(DMI_SYS_VENDOR, "TriGem Computer, Inc"),
			MATCH(DMI_PRODUCT_NAME, "Delhi3"),
			NO_MATCH, NO_MATCH,
			} },
	{ apm_is_horked, "Sharp PC-PJ/AX", { /* APM crashes */
			MATCH(DMI_SYS_VENDOR, "SHARP"),
			MATCH(DMI_PRODUCT_NAME, "PC-PJ/AX"),
			MATCH(DMI_BIOS_VENDOR,"SystemSoft"),
			MATCH(DMI_BIOS_VERSION,"Version R2.08")
			} },
	{ sony_vaio_laptop, "Sony Vaio", { /* This is a Sony Vaio laptop */
			MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
			MATCH(DMI_PRODUCT_NAME, "PCG-"),
			NO_MATCH, NO_MATCH,
			} },
	{ swab_apm_power_in_minutes, "Sony VAIO", { /* Handle problems with APM on Sony Vaio PCG-N505X(DE) */
			MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
			MATCH(DMI_BIOS_VERSION, "R0206H"),
			MATCH(DMI_BIOS_DATE, "08/23/99"), NO_MATCH
	} },

	{ swab_apm_power_in_minutes, "Sony VAIO", { /* Handle problems with APM on Sony Vaio PCG-N505VX */
			MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
			MATCH(DMI_BIOS_VERSION, "W2K06H0"),
			MATCH(DMI_BIOS_DATE, "02/03/00"), NO_MATCH
			} },
			
	{ swab_apm_power_in_minutes, "Sony VAIO", {	/* Handle problems with APM on Sony Vaio PCG-XG29 */
			MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
			MATCH(DMI_BIOS_VERSION, "R0117A0"),
			MATCH(DMI_BIOS_DATE, "04/25/00"), NO_MATCH
			} },

	{ swab_apm_power_in_minutes, "Sony VAIO", {	/* Handle problems with APM on Sony Vaio PCG-Z600NE */
			MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
			MATCH(DMI_BIOS_VERSION, "R0121Z1"),
			MATCH(DMI_BIOS_DATE, "05/11/00"), NO_MATCH
			} },

	{ swab_apm_power_in_minutes, "Sony VAIO", {	/* Handle problems with APM on Sony Vaio PCG-Z600NE */
			MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
			MATCH(DMI_BIOS_VERSION, "WME01Z1"),
			MATCH(DMI_BIOS_DATE, "08/11/00"), NO_MATCH
			} },

	{ swab_apm_power_in_minutes, "Sony VAIO", {	/* Handle problems with APM on Sony Vaio PCG-Z505LS */
			MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
			MATCH(DMI_BIOS_VERSION, "R0203D0"),
			MATCH(DMI_BIOS_DATE, "05/12/00"), NO_MATCH
			} },

	{ swab_apm_power_in_minutes, "Sony VAIO", {	/* Handle problems with APM on Sony Vaio PCG-Z505LS */
			MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
			MATCH(DMI_BIOS_VERSION, "R0203Z3"),
			MATCH(DMI_BIOS_DATE, "08/25/00"), NO_MATCH
			} },
	
	{ swab_apm_power_in_minutes, "Sony VAIO", {	/* Handle problems with APM on Sony Vaio PCG-F104K */
			MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
			MATCH(DMI_BIOS_VERSION, "R0204K2"),
			MATCH(DMI_BIOS_DATE, "08/28/00"), NO_MATCH
			} },
	
	{ swab_apm_power_in_minutes, "Sony VAIO", {	/* Handle problems with APM on Sony Vaio PCG-C1VN/C1VE */
			MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
			MATCH(DMI_BIOS_VERSION, "R0208P1"),
			MATCH(DMI_BIOS_DATE, "11/09/00"), NO_MATCH
			} },
	{ swab_apm_power_in_minutes, "Sony VAIO", {	/* Handle problems with APM on Sony Vaio PCG-C1VE */
			MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
			MATCH(DMI_BIOS_VERSION, "R0204P1"),
			MATCH(DMI_BIOS_DATE, "09/12/00"), NO_MATCH
			} },

	/* Problem Intel 440GX bioses */

	{ broken_pirq, "SABR1 Bios", {			/* Bad $PIR */
			MATCH(DMI_BIOS_VENDOR, "Intel Corporation"),
			MATCH(DMI_BIOS_VERSION,"SABR1"),
			NO_MATCH, NO_MATCH
			} },
	{ broken_pirq, "l44GX Bios", {        		/* Bad $PIR */
			MATCH(DMI_BIOS_VENDOR, "Intel Corporation"),
			MATCH(DMI_BIOS_VERSION,"L440GX0.86B.0094.P10"),
			NO_MATCH, NO_MATCH
                        } },
	{ broken_pirq, "l44GX Bios", {        		/* Bad $PIR */
			MATCH(DMI_BIOS_VENDOR, "Intel Corporation"),
			MATCH(DMI_BIOS_VERSION,"L440GX0.86B.0120.P12"),
			NO_MATCH, NO_MATCH
                        } },
	{ broken_pirq, "l44GX Bios", {		/* Bad $PIR */
			MATCH(DMI_BIOS_VENDOR, "Intel Corporation"),
			MATCH(DMI_BIOS_VERSION,"L440GX0.86B.0125.P13"),
			NO_MATCH, NO_MATCH
			} },
	{ broken_pirq, "l44GX Bios", {		/* Bad $PIR */
			MATCH(DMI_BIOS_VENDOR, "Intel Corporation"),
			MATCH(DMI_BIOS_VERSION,"L440GX0.86B.0066.P07.9906041405"),
			NO_MATCH, NO_MATCH
			} },
                        
	/* Intel in disgiuse - In this case they can't hide and they don't run
	   too well either... */
	{ broken_pirq, "Dell PowerEdge 8450", {		/* Bad $PIR */
			MATCH(DMI_PRODUCT_NAME, "Dell PowerEdge 8450"),
			NO_MATCH, NO_MATCH, NO_MATCH
			} },
			
	{ broken_acpi_Sx, "ASUS K7V-RM", {		/* Bad ACPI Sx table */
			MATCH(DMI_BIOS_VERSION,"ASUS K7V-RM ACPI BIOS Revision 1003A"),
			MATCH(DMI_BOARD_NAME, "<K7V-RM>"),
			NO_MATCH, NO_MATCH
			} },
			
	{ broken_toshiba_keyboard, "Toshiba Satellite 4030cdt", { /* Keyboard generates spurious repeats */
			MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"),
			NO_MATCH, NO_MATCH, NO_MATCH
			} },
	{ init_ints_after_s1, "Toshiba Satellite 4030cdt", { /* Reinitialization of 8259 is needed after S1 resume */
			MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"),
			NO_MATCH, NO_MATCH, NO_MATCH
			} },

	{ print_if_true, KERN_WARNING "IBM T23 - BIOS 1.03b+ and controller firmware 1.02+ may be needed for Linux APM.", {
			MATCH(DMI_SYS_VENDOR, "IBM"),
			MATCH(DMI_BIOS_VERSION, "1AET38WW (1.01b)"),
			NO_MATCH, NO_MATCH
			} },
	 
			
	/*
	 *	Generic per vendor APM settings
	 */
	 
	{ set_apm_ints, "IBM", {	/* Allow interrupts during suspend on IBM laptops */
			MATCH(DMI_SYS_VENDOR, "IBM"),
			NO_MATCH, NO_MATCH, NO_MATCH
			} },

	{ NULL, }
};
	
	
/*
 *	Walk the blacklist table running matching functions until someone 
 *	returns 1 or we hit the end.
 */
 
static __init void dmi_check_blacklist(void)
{
	struct dmi_blacklist *d;
	int i;
		
	d=&dmi_blacklist[0];
	while(d->callback)
	{
		for(i=0;i<4;i++)
		{
			int s = d->matches[i].slot;
			if(s==NONE)
				continue;
			if(dmi_ident[s] && strstr(dmi_ident[s], d->matches[i].substr))
				continue;
			/* No match */
			goto fail;
		}
		if(d->callback(d))
			return;
fail:			
		d++;
	}
}

	

/*
 *	Process a DMI table entry. Right now all we care about are the BIOS
 *	and machine entries. For 2.5 we should pull the smbus controller info
 *	out of here.
 */

static void __init dmi_decode(struct dmi_header *dm)
{
	u8 *data = (u8 *)dm;
	char *p;
	
	switch(dm->type)
	{
		case  0:
			p=dmi_string(dm,data[4]);
			if(*p)
			{
				dmi_printk(("BIOS Vendor: %s\n", p));
				dmi_save_ident(dm, DMI_BIOS_VENDOR, 4);
				dmi_printk(("BIOS Version: %s\n", 
					dmi_string(dm, data[5])));
				dmi_save_ident(dm, DMI_BIOS_VERSION, 5);
				dmi_printk(("BIOS Release: %s\n",
					dmi_string(dm, data[8])));
				dmi_save_ident(dm, DMI_BIOS_DATE, 8);
			}
			break;
			
		case 1:
			p=dmi_string(dm,data[4]);
			if(*p)
			{
				dmi_printk(("System Vendor: %s.\n",p));
				dmi_save_ident(dm, DMI_SYS_VENDOR, 4);
				dmi_printk(("Product Name: %s.\n",
					dmi_string(dm, data[5])));
				dmi_save_ident(dm, DMI_PRODUCT_NAME, 5);
				dmi_printk(("Version %s.\n",
					dmi_string(dm, data[6])));
				dmi_save_ident(dm, DMI_PRODUCT_VERSION, 6);
				dmi_printk(("Serial Number %s.\n",
					dmi_string(dm, data[7])));
			}
			break;
		case 2:
			p=dmi_string(dm,data[4]);
			if(*p)
			{
				dmi_printk(("Board Vendor: %s.\n",p));
				dmi_save_ident(dm, DMI_BOARD_VENDOR, 4);
				dmi_printk(("Board Name: %s.\n",
					dmi_string(dm, data[5])));
				dmi_save_ident(dm, DMI_BOARD_NAME, 5);
				dmi_printk(("Board Version: %s.\n",
					dmi_string(dm, data[6])));
				dmi_save_ident(dm, DMI_BOARD_VERSION, 6);
			}
			break;
		case 3:
			p=dmi_string(dm,data[8]);
			if(*p && *p!=' ')
				dmi_printk(("Asset Tag: %s.\n", p));
			break;
	}
}

static int __init dmi_scan_machine(void)
{
	int err = dmi_iterate(dmi_decode);
	if(err == 0)
		dmi_check_blacklist();
	return err;
}

module_init(dmi_scan_machine);