Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / input / mouse / atarimouse.c

diff --git a/kernel/drivers/input/mouse/atarimouse.c b/kernel/drivers/input/mouse/atarimouse.c
new file mode 100644 (file)
index 0000000..d1c4323
--- /dev/null
+++ b/kernel/drivers/input/mouse/atarimouse.c
@@ -0,0 +1,158 @@
+/*
+ *  Atari mouse driver for Linux/m68k
+ *
+ *  Copyright (c) 2005 Michael Schmitz
+ *
+ *  Based on:
+ *  Amiga mouse driver for Linux/m68k
+ *
+ *  Copyright (c) 2000-2002 Vojtech Pavlik
+ *
+ */
+/*
+ * The low level init and interrupt stuff is handled in arch/mm68k/atari/atakeyb.c
+ * (the keyboard ACIA also handles the mouse and joystick data, and the keyboard
+ * interrupt is shared with the MIDI ACIA so MIDI data also get handled there).
+ * This driver only deals with handing key events off to the input layer.
+ *
+ * Largely based on the old:
+ *
+ * Atari Mouse Driver for Linux
+ * by Robert de Vries (robert@and.nl) 19Jul93
+ *
+ * 16 Nov 1994 Andreas Schwab
+ * Compatibility with busmouse
+ * Support for three button mouse (shamelessly stolen from MiNT)
+ * third button wired to one of the joystick directions on joystick 1
+ *
+ * 1996/02/11 Andreas Schwab
+ * Module support
+ * Allow multiple open's
+ *
+ * Converted to use new generic busmouse code.  5 Apr 1998
+ *   Russell King <rmk@arm.uk.linux.org>
+ */
+
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+
+#include <asm/irq.h>
+#include <asm/setup.h>
+#include <asm/uaccess.h>
+#include <asm/atarihw.h>
+#include <asm/atarikb.h>
+#include <asm/atariints.h>
+
+MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>");
+MODULE_DESCRIPTION("Atari mouse driver");
+MODULE_LICENSE("GPL");
+
+static int mouse_threshold[2] = {2, 2};
+module_param_array(mouse_threshold, int, NULL, 0);
+
+#ifdef FIXED_ATARI_JOYSTICK
+extern int atari_mouse_buttons;
+#endif
+
+static struct input_dev *atamouse_dev;
+
+static void atamouse_interrupt(char *buf)
+{
+       int buttons, dx, dy;
+
+       buttons = (buf[0] & 1) | ((buf[0] & 2) << 1);
+#ifdef FIXED_ATARI_JOYSTICK
+       buttons |= atari_mouse_buttons & 2;
+       atari_mouse_buttons = buttons;
+#endif
+
+       /* only relative events get here */
+       dx = buf[1];
+       dy = buf[2];
+
+       input_report_rel(atamouse_dev, REL_X, dx);
+       input_report_rel(atamouse_dev, REL_Y, dy);
+
+       input_report_key(atamouse_dev, BTN_LEFT,   buttons & 0x4);
+       input_report_key(atamouse_dev, BTN_MIDDLE, buttons & 0x2);
+       input_report_key(atamouse_dev, BTN_RIGHT,  buttons & 0x1);
+
+       input_sync(atamouse_dev);
+
+       return;
+}
+
+static int atamouse_open(struct input_dev *dev)
+{
+#ifdef FIXED_ATARI_JOYSTICK
+       atari_mouse_buttons = 0;
+#endif
+       ikbd_mouse_y0_top();
+       ikbd_mouse_thresh(mouse_threshold[0], mouse_threshold[1]);
+       ikbd_mouse_rel_pos();
+       atari_input_mouse_interrupt_hook = atamouse_interrupt;
+
+       return 0;
+}
+
+static void atamouse_close(struct input_dev *dev)
+{
+       ikbd_mouse_disable();
+       atari_input_mouse_interrupt_hook = NULL;
+}
+
+static int __init atamouse_init(void)
+{
+       int error;
+
+       if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP))
+               return -ENODEV;
+
+       error = atari_keyb_init();
+       if (error)
+               return error;
+
+       atamouse_dev = input_allocate_device();
+       if (!atamouse_dev)
+               return -ENOMEM;
+
+       atamouse_dev->name = "Atari mouse";
+       atamouse_dev->phys = "atamouse/input0";
+       atamouse_dev->id.bustype = BUS_HOST;
+       atamouse_dev->id.vendor = 0x0001;
+       atamouse_dev->id.product = 0x0002;
+       atamouse_dev->id.version = 0x0100;
+
+       atamouse_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+       atamouse_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+       atamouse_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
+               BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
+
+       atamouse_dev->open = atamouse_open;
+       atamouse_dev->close = atamouse_close;
+
+       error = input_register_device(atamouse_dev);
+       if (error) {
+               input_free_device(atamouse_dev);
+               return error;
+       }
+
+       return 0;
+}
+
+static void __exit atamouse_exit(void)
+{
+       input_unregister_device(atamouse_dev);
+}
+
+module_init(atamouse_init);
+module_exit(atamouse_exit);