[PATCH] Toshiba Laptop Support and IRQ Locks

[John Weber]

Hi,

Toshiba laptop support is broken.  Here's my rookie attempt at fixing it.

--- linux-2.5.30/drivers/char/toshiba.c	2002-08-01 17:16:39.000000000 -0400
+++ linux-bleed/drivers/char/toshiba.c	2002-08-02 11:37:14.000000000 -0400
@@ -82,6 +82,8 @@

  static int tosh_fn = 0;

+extern rwlock_t tosh_lock;
+
  MODULE_PARM(tosh_fn, "i");

  MODULE_LICENSE("GPL");
@@ -114,11 +116,10 @@
  	if (tosh_fn!=0) {
  		scan = inb(tosh_fn);
  	} else {
- 
	save_flags(flags);
- 
	cli();
+ 
         write_lock_irq(&tosh_lock);
  		outb(0x8e, 0xe4);
  		scan = inb(0xe5);
- 
	restore_flags(flags);
+ 
	write_unlock_irq(&tosh_lock);
  	}

          return (int) scan;
@@ -141,35 +142,32 @@
  	if (tosh_id==0xfccb) {
  		if (eax==0xfe00) {
  	 
	/* fan status */
- 
		save_flags(flags);
- 
		cli();
+ 
	        write_lock_irq(&tosh_lock);
  	 
	outb(0xbe, 0xe4);
  	 
	al = inb(0xe5);
- 
		restore_flags(flags);
+ 
		write_unlock_irq(&tosh_lock);
  	 
	regs->eax = 0x00;
  	 
	regs->ecx = (unsigned int) (al & 0x01);
  		}
  		if ((eax==0xff00) && (ecx==0x0000)) {
  	 
	/* fan off */
- 
		save_flags(flags);
- 
		cli();
+ 
	        write_lock_irq(&tosh_lock);
  	 
	outb(0xbe, 0xe4);
  	 
	al = inb(0xe5);
  	 
	outb(0xbe, 0xe4);
  	 
	outb (al | 0x01, 0xe5);
- 
		restore_flags(flags);
+ 
		write_unlock_irq(&tosh_lock);
  	 
	regs->eax = 0x00;
  	 
	regs->ecx = 0x00;
  		}
  		if ((eax==0xff00) && (ecx==0x0001)) {
  	 
	/* fan on */
- 
		save_flags(flags);
- 
		cli();
+ 
	        write_lock_irq(&tosh_lock);
  	 
	outb(0xbe, 0xe4);
  	 
	al = inb(0xe5);
  	 
	outb(0xbe, 0xe4);
  	 
	outb(al & 0xfe, 0xe5);
- 
		restore_flags(flags);
+ 
		write_unlock_irq(&tosh_lock);
  	 
	regs->eax = 0x00;
  	 
	regs->ecx = 0x01;
  		}
@@ -180,33 +178,30 @@
  	if (tosh_id==0xfccc) {
  		if (eax==0xfe00) {
  	 
	/* fan status */
- 
		save_flags(flags);
- 
		cli();
+ 
	        write_lock_irq(&tosh_lock);
  	 
	outb(0xe0, 0xe4);
  	 
	al = inb(0xe5);
- 
		restore_flags(flags);
+ 
		write_unlock_irq(&tosh_lock);
  	 
	regs->eax = 0x00;
  	 
	regs->ecx = al & 0x01;
  		}
  		if ((eax==0xff00) && (ecx==0x0000)) {
  	 
	/* fan off */
- 
		save_flags(flags);
- 
		cli();
+ 
	        write_lock_irq(&tosh_lock);
  	 
	outb(0xe0, 0xe4);
  	 
	al = inb(0xe5);
  	 
	outw(0xe0 | ((al & 0xfe) << 8), 0xe4);
- 
		restore_flags(flags);
+ 
		write_unlock_irq(&tosh_lock);
  	 
	regs->eax = 0x00;
  	 
	regs->ecx = 0x00;
  		}
  		if ((eax==0xff00) && (ecx==0x0001)) {
  	 
	/* fan on */
- 
		save_flags(flags);
- 
		cli();
+ 
	        write_lock_irq(&tosh_lock);
  	 
	outb(0xe0, 0xe4);
  	 
	al = inb(0xe5);
  	 
	outw(0xe0 | ((al | 0x01) << 8), 0xe4);
- 
		restore_flags(flags);
+ 
		write_unlock_irq(&tosh_lock);
  	 
	regs->eax = 0x00;
  	 
	regs->ecx = 0x01;
  		}