[PATCH] Toshiba Laptop Support and IRQ Locks

From: John Weber (john.weber@linux.org)
Date: Fri Aug 02 2002 - 11:03:31 EST


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;
                  }

-
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This archive was generated by hypermail 2b29 : Wed Aug 07 2002 - 22:00:19 EST