bitkeeper revision 1.178.2.1 (3ead095fnpL5TUgwn6hztSXztuDhxQ)

PS/2 keyboard and mouse support

1 files changed, 95 insertions, 0 deletions

diff --git a/xenolinux-2.4.21-pre4-sparse/include/asm-xeno/keyboard.h b/xenolinux-2.4.21-pre4-sparse/include/asm-xeno/keyboard.h
new file mode 100644
index 0000000000..263aa595a1
--- /dev/null
+++ b/xenolinux-2.4.21-pre4-sparse/include/asm-xeno/keyboard.h
@@ -0,0 +1,95 @@
+/* xenolinux/include/asm-xeno/keyboard.h */
+/* Portions copyright (c) 2003 James Scott, Intel Research Cambridge */
+/* Talks to hypervisor to get PS/2 keyboard and mouse events, and send keyboard and mouse commands */
+
+/*  Based on:
+ *  linux/include/asm-i386/keyboard.h
+ *
+ *  Created 3 Nov 1996 by Geert Uytterhoeven
+ */
+
+#ifndef _XENO_KEYBOARD_H
+#define _XENO_KEYBOARD_H
+
+#ifdef __KERNEL__
+
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/kd.h>
+#include <linux/pm.h>
+#include <asm/io.h>
+
+
+#define KEYBOARD_IRQ _EVENT_KBD
+#define AUX_IRQ _EVENT_KBD
+
+/* THIS SECTION RELATIVELY UNTOUCHED */
+
+extern int pckbd_setkeycode(unsigned int scancode, unsigned int keycode);
+extern int pckbd_getkeycode(unsigned int scancode);
+extern int pckbd_translate(unsigned char scancode, unsigned char *keycode,
+			   char raw_mode);
+extern char pckbd_unexpected_up(unsigned char keycode);
+extern void pckbd_leds(unsigned char leds);
+extern void pckbd_init_hw(void);
+extern int pckbd_pm_resume(struct pm_dev *, pm_request_t, void *);
+
+extern pm_callback pm_kbd_request_override;
+extern unsigned char pckbd_sysrq_xlate[128];
+
+#define kbd_setkeycode		pckbd_setkeycode
+#define kbd_getkeycode		pckbd_getkeycode
+#define kbd_translate		pckbd_translate
+#define kbd_unexpected_up	pckbd_unexpected_up
+#define kbd_leds		pckbd_leds
+#define kbd_init_hw		pckbd_init_hw
+#define kbd_sysrq_xlate		pckbd_sysrq_xlate
+
+#define SYSRQ_KEY 0x54
+
+
+/* THIS SECTION TALKS TO XEN TO DO PS2 SUPPORT */
+#include <asm/hypervisor-ifs/kbd.h>
+#include <asm/hypervisor-ifs/hypervisor-if.h>
+
+/* resource allocation */
+#define kbd_request_region() do { } while (0)
+#define kbd_request_irq(handler) request_irq(_EVENT_KBD, handler, 0, "PS/2 kbd", NULL)
+
+// could implement these with command to xen to filter mouse stuff...
+#define aux_request_irq(hand, dev_id) 0
+#define aux_free_irq(dev_id) do { } while(0)
+
+/* Some stoneage hardware needs delays after some operations.  */
+#define kbd_pause() do { } while(0)
+
+
+static unsigned char kbd_current_scancode = 0;
+
+static unsigned char kbd_read_input(void) 
+{
+  //printk("kbd_read_input: returning scancode 0x%2x\n", kbd_current_scancode);
+  return kbd_current_scancode;
+}
+
+static unsigned char kbd_read_status(void) 
+{
+  long res;
+  res = HYPERVISOR_kbd_op(KBD_OP_READ,0);
+  if(res<0) {
+    //printk("kbd_read_status: error from hypervisor: %d", res);
+    kbd_current_scancode = 0;
+    return 0; // error with our request - wrong domain?
+  }
+  kbd_current_scancode = KBD_CODE_SCANCODE(res);
+  //printk("kbd_read_status: returning status 0x%2x\n", KBD_CODE_STATUS(res));
+  return KBD_CODE_STATUS(res);
+}
+
+
+#define kbd_write_output(val)  HYPERVISOR_kbd_op(KBD_OP_WRITEOUTPUT, val);
+#define kbd_write_command(val) HYPERVISOR_kbd_op(KBD_OP_WRITECOMMAND, val);
+
+
+#endif /* __KERNEL__ */
+#endif /* _XENO_KEYBOARD_H */