#include <linux/delay.h>
#include <linux/module.h>
-#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/rcupdate.h>
#include <linux/platform_device.h>
+#include <linux/i8042.h>
#include <asm/io.h>
module_param_named(panicblink, i8042_blink_frequency, uint, 0600);
MODULE_PARM_DESC(panicblink, "Frequency with which keyboard LEDs should blink when kernel panics");
+#ifdef CONFIG_X86
+static unsigned int i8042_dritek;
+module_param_named(dritek, i8042_dritek, bool, 0);
+MODULE_PARM_DESC(dritek, "Force enable the Dritek keyboard extension");
+#endif
+
#ifdef CONFIG_PNP
static int i8042_nopnp;
module_param_named(nopnp, i8042_nopnp, bool, 0);
return 0;
}
-static int i8042_command(unsigned char *param, int command)
+int i8042_command(unsigned char *param, int command)
{
unsigned long flags;
int retval;
return retval;
}
+EXPORT_SYMBOL(i8042_command);
/*
* i8042_kbd_write() sends a byte out through the keyboard interface.
struct i8042_port *port = serio->port_data;
port->exists = 0;
- synchronize_sched();
+
+ /*
+ * We synchronize with both AUX and KBD IRQs because there is
+ * a (very unlikely) chance that AUX IRQ is raised for KBD port
+ * and vice versa.
+ */
+ synchronize_irq(I8042_AUX_IRQ);
+ synchronize_irq(I8042_KBD_IRQ);
port->serio = NULL;
}
#undef DELAY
+#ifdef CONFIG_X86
+static void i8042_dritek_enable(void)
+{
+ char param = 0x90;
+ int error;
+
+ error = i8042_command(¶m, 0x1059);
+ if (error)
+ printk(KERN_WARNING
+ "Failed to enable DRITEK extension: %d\n",
+ error);
+}
+#endif
+
#ifdef CONFIG_PM
/*
* Here we try to restore the original BIOS settings. We only want to
return -EIO;
}
+
+#ifdef CONFIG_X86
+ if (i8042_dritek)
+ i8042_dritek_enable();
+#endif
+
if (i8042_mux_present) {
if (i8042_set_mux_mode(1, NULL) || i8042_enable_mux_ports())
printk(KERN_WARNING
if (error)
return error;
+#ifdef CONFIG_X86
+ if (i8042_dritek)
+ i8042_dritek_enable();
+#endif
+
if (!i8042_noaux) {
error = i8042_setup_aux();
if (error && error != -ENODEV && error != -EBUSY)
if (error)
goto out_fail;
}
-
/*
* Ok, everything is ready, let's register all serio ports
*/