m68k: Atari keyboard and mouse support.

Atari keyboard and mouse support. (reformating and Kconfig fixes by Roman Zippel) Signed-off-by: Michael Schmitz <schmitz@debian.org> Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

m68k: Atari keyboard and mouse support.
Atari keyboard and mouse support. (reformating and Kconfig fixes by Roman Zippel) Signed-off-by: Michael Schmitz <schmitz@debian.org> Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michael Schmitz · Linus Torvalds
1 parent 3130d905ba
Showing 11 changed files with 1059 additions and 0 deletions Side-by-side Diff
arch/m68k/Kconfig
arch/m68k/atari/Makefile
arch/m68k/atari/atakeyb.c
drivers/input/keyboard/Kconfig
drivers/input/keyboard/Makefile
drivers/input/keyboard/atakbd.c
drivers/input/mouse/Kconfig
drivers/input/mouse/Makefile
drivers/input/mouse/atarimouse.c
include/asm-m68k/atarikb.h
include/linux/input.h
@@ -409,6 +409,9 @@
 	help
 	  Say Y here to report ST-RAM usage statistics in /proc/stram.
  
+config ATARI_KBD_CORE
+	bool
+
 config HEARTBEAT
 	bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40
 	default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300
@@ -8,4 +8,5 @@
 ifeq ($(CONFIG_PCI),y)
 obj-$(CONFIG_HADES)	+= hades-pci.o
 endif
+obj-$(CONFIG_ATARI_KBD_CORE)	+= atakeyb.o
+/*
+ * linux/atari/atakeyb.c
+ *
+ * Atari Keyboard driver for 680x0 Linux
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+/*
+ * Atari support by Robert de Vries
+ * enhanced by Bjoern Brauel and Roman Hodek
+ */
+
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/errno.h>
+#include <linux/keyboard.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/kd.h>
+#include <linux/random.h>
+#include <linux/init.h>
+#include <linux/kbd_kern.h>
+
+#include <asm/atariints.h>
+#include <asm/atarihw.h>
+#include <asm/atarikb.h>
+#include <asm/atari_joystick.h>
+#include <asm/irq.h>
+
+static void atakeyb_rep(unsigned long ignore);
+extern unsigned int keymap_count;
+
+/* Hook for MIDI serial driver */
+void (*atari_MIDI_interrupt_hook) (void);
+/* Hook for mouse driver */
+void (*atari_mouse_interrupt_hook) (char *);
+/* Hook for keyboard inputdev  driver */
+void (*atari_input_keyboard_interrupt_hook) (unsigned char, char);
+/* Hook for mouse inputdev  driver */
+void (*atari_input_mouse_interrupt_hook) (char *);
+
+/* variables for IKBD self test: */
+
+/* state: 0: off; >0: in progress; >1: 0xf1 received */
+static volatile int ikbd_self_test;
+/* timestamp when last received a char */
+static volatile unsigned long self_test_last_rcv;
+/* bitmap of keys reported as broken */
+static unsigned long broken_keys[128/(sizeof(unsigned long)*8)] = { 0, };
+
+#define BREAK_MASK	(0x80)
+
+/*
+ * ++roman: The following changes were applied manually:
+ *
+ *  - The Alt (= Meta) key works in combination with Shift and
+ *    Control, e.g. Alt+Shift+a sends Meta-A (0xc1), Alt+Control+A sends
+ *    Meta-Ctrl-A (0x81) ...
+ *
+ *  - The parentheses on the keypad send '(' and ')' with all
+ *    modifiers (as would do e.g. keypad '+'), but they cannot be used as
+ *    application keys (i.e. sending Esc O c).
+ *
+ *  - HELP and UNDO are mapped to be F21 and F24, resp, that send the
+ *    codes "\E[M" and "\E[P". (This is better than the old mapping to
+ *    F11 and F12, because these codes are on Shift+F1/2 anyway.) This
+ *    way, applications that allow their own keyboard mappings
+ *    (e.g. tcsh, X Windows) can be configured to use them in the way
+ *    the label suggests (providing help or undoing).
+ *
+ *  - Console switching is done with Alt+Fx (consoles 1..10) and
+ *    Shift+Alt+Fx (consoles 11..20).
+ *
+ *  - The misc. special function implemented in the kernel are mapped
+ *    to the following key combinations:
+ *
+ *      ClrHome          -> Home/Find
+ *      Shift + ClrHome  -> End/Select
+ *      Shift + Up       -> Page Up
+ *      Shift + Down     -> Page Down
+ *      Alt + Help       -> show system status
+ *      Shift + Help     -> show memory info
+ *      Ctrl + Help      -> show registers
+ *      Ctrl + Alt + Del -> Reboot
+ *      Alt + Undo       -> switch to last console
+ *      Shift + Undo     -> send interrupt
+ *      Alt + Insert     -> stop/start output (same as ^S/^Q)
+ *      Alt + Up         -> Scroll back console (if implemented)
+ *      Alt + Down       -> Scroll forward console (if implemented)
+ *      Alt + CapsLock   -> NumLock
+ *
+ * ++Andreas:
+ *
+ *  - Help mapped to K_HELP
+ *  - Undo mapped to K_UNDO (= K_F246)
+ *  - Keypad Left/Right Parenthesis mapped to new K_PPAREN[LR]
+ */
+
+static u_short ataplain_map[NR_KEYS] __initdata = {
+	0xf200, 0xf01b, 0xf031, 0xf032, 0xf033, 0xf034, 0xf035, 0xf036,
+	0xf037, 0xf038, 0xf039, 0xf030, 0xf02d, 0xf03d, 0xf008, 0xf009,
+	0xfb71, 0xfb77, 0xfb65, 0xfb72, 0xfb74, 0xfb79, 0xfb75, 0xfb69,
+	0xfb6f, 0xfb70, 0xf05b, 0xf05d, 0xf201, 0xf702, 0xfb61, 0xfb73,
+	0xfb64, 0xfb66, 0xfb67, 0xfb68, 0xfb6a, 0xfb6b, 0xfb6c, 0xf03b,
+	0xf027, 0xf060, 0xf700, 0xf05c, 0xfb7a, 0xfb78, 0xfb63, 0xfb76,
+	0xfb62, 0xfb6e, 0xfb6d, 0xf02c, 0xf02e, 0xf02f, 0xf700, 0xf200,
+	0xf703, 0xf020, 0xf207, 0xf100, 0xf101, 0xf102, 0xf103, 0xf104,
+	0xf105, 0xf106, 0xf107, 0xf108, 0xf109, 0xf200, 0xf200, 0xf114,
+	0xf603, 0xf200, 0xf30b, 0xf601, 0xf200, 0xf602, 0xf30a, 0xf200,
+	0xf600, 0xf200, 0xf115, 0xf07f, 0xf200, 0xf200, 0xf200, 0xf200,
+	0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+	0xf200, 0xf1ff, 0xf11b, 0xf312, 0xf313, 0xf30d, 0xf30c, 0xf307,
+	0xf308, 0xf309, 0xf304, 0xf305, 0xf306, 0xf301, 0xf302, 0xf303,
+	0xf300, 0xf310, 0xf30e, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+	0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200
+};
+
+typedef enum kb_state_t {
+	KEYBOARD, AMOUSE, RMOUSE, JOYSTICK, CLOCK, RESYNC
+} KB_STATE_T;
+
+#define	IS_SYNC_CODE(sc)	((sc) >= 0x04 && (sc) <= 0xfb)
+
+typedef struct keyboard_state {
+	unsigned char buf[6];
+	int len;
+	KB_STATE_T state;
+} KEYBOARD_STATE;
+
+KEYBOARD_STATE kb_state;
+
+#define	DEFAULT_KEYB_REP_DELAY	(HZ/4)
+#define	DEFAULT_KEYB_REP_RATE	(HZ/25)
+
+/* These could be settable by some ioctl() in future... */
+static unsigned int key_repeat_delay = DEFAULT_KEYB_REP_DELAY;
+static unsigned int key_repeat_rate = DEFAULT_KEYB_REP_RATE;
+
+static unsigned char rep_scancode;
+static struct timer_list atakeyb_rep_timer = {
+	.function = atakeyb_rep,
+};
+
+static void atakeyb_rep(unsigned long ignore)
+{
+	/* Disable keyboard for the time we call handle_scancode(), else a race
+	 * in the keyboard tty queue may happen */
+	atari_disable_irq(IRQ_MFP_ACIA);
+	del_timer(&atakeyb_rep_timer);
+
+	/* A keyboard int may have come in before we disabled the irq, so
+	 * double-check whether rep_scancode is still != 0 */
+	if (rep_scancode) {
+		init_timer(&atakeyb_rep_timer);
+		atakeyb_rep_timer.expires = jiffies + key_repeat_rate;
+		add_timer(&atakeyb_rep_timer);
+
+		//handle_scancode(rep_scancode, 1);
+		if (atari_input_keyboard_interrupt_hook)
+			atari_input_keyboard_interrupt_hook(rep_scancode, 1);
+	}
+
+	atari_enable_irq(IRQ_MFP_ACIA);
+}
+
+
+/* ++roman: If a keyboard overrun happened, we can't tell in general how much
+ * bytes have been lost and in which state of the packet structure we are now.
+ * This usually causes keyboards bytes to be interpreted as mouse movements
+ * and vice versa, which is very annoying. It seems better to throw away some
+ * bytes (that are usually mouse bytes) than to misinterpret them. Therefor I
+ * introduced the RESYNC state for IKBD data. In this state, the bytes up to
+ * one that really looks like a key event (0x04..0xf2) or the start of a mouse
+ * packet (0xf8..0xfb) are thrown away, but at most 2 bytes. This at least
+ * speeds up the resynchronization of the event structure, even if maybe a
+ * mouse movement is lost. However, nothing is perfect. For bytes 0x01..0x03,
+ * it's really hard to decide whether they're mouse or keyboard bytes. Since
+ * overruns usually occur when moving the Atari mouse rapidly, they're seen as
+ * mouse bytes here. If this is wrong, only a make code of the keyboard gets
+ * lost, which isn't too bad. Loosing a break code would be disastrous,
+ * because then the keyboard repeat strikes...
+ */
+
+static irqreturn_t atari_keyboard_interrupt(int irq, void *dummy)
+{
+	u_char acia_stat;
+	int scancode;
+	int break_flag;
+
+repeat:
+	if (acia.mid_ctrl & ACIA_IRQ)
+		if (atari_MIDI_interrupt_hook)
+			atari_MIDI_interrupt_hook();
+	acia_stat = acia.key_ctrl;
+	/* check out if the interrupt came from this ACIA */
+	if (!((acia_stat | acia.mid_ctrl) & ACIA_IRQ))
+		return IRQ_HANDLED;
+
+	if (acia_stat & ACIA_OVRN) {
+		/* a very fast typist or a slow system, give a warning */
+		/* ...happens often if interrupts were disabled for too long */
+		printk(KERN_DEBUG "Keyboard overrun\n");
+		scancode = acia.key_data;
+		/* Turn off autorepeating in case a break code has been lost */
+		del_timer(&atakeyb_rep_timer);
+		rep_scancode = 0;
+		if (ikbd_self_test)
+			/* During self test, don't do resyncing, just process the code */
+			goto interpret_scancode;
+		else if (IS_SYNC_CODE(scancode)) {
+			/* This code seem already to be the start of a new packet or a
+			 * single scancode */
+			kb_state.state = KEYBOARD;
+			goto interpret_scancode;
+		} else {
+			/* Go to RESYNC state and skip this byte */
+			kb_state.state = RESYNC;
+			kb_state.len = 1;	/* skip max. 1 another byte */
+			goto repeat;
+		}
+	}
+
+	if (acia_stat & ACIA_RDRF) {
+		/* received a character */
+		scancode = acia.key_data;	/* get it or reset the ACIA, I'll get it! */
+		tasklet_schedule(&keyboard_tasklet);
+	interpret_scancode:
+		switch (kb_state.state) {
+		case KEYBOARD:
+			switch (scancode) {
+			case 0xF7:
+				kb_state.state = AMOUSE;
+				kb_state.len = 0;
+				break;
+
+			case 0xF8:
+			case 0xF9:
+			case 0xFA:
+			case 0xFB:
+				kb_state.state = RMOUSE;
+				kb_state.len = 1;
+				kb_state.buf[0] = scancode;
+				break;
+
+			case 0xFC:
+				kb_state.state = CLOCK;
+				kb_state.len = 0;
+				break;
+
+			case 0xFE:
+			case 0xFF:
+				kb_state.state = JOYSTICK;
+				kb_state.len = 1;
+				kb_state.buf[0] = scancode;
+				break;
+
+			case 0xF1:
+				/* during self-test, note that 0xf1 received */
+				if (ikbd_self_test) {
+					++ikbd_self_test;
+					self_test_last_rcv = jiffies;
+					break;
+				}
+				/* FALL THROUGH */
+
+			default:
+				break_flag = scancode & BREAK_MASK;
+				scancode &= ~BREAK_MASK;
+				if (ikbd_self_test) {
+					/* Scancodes sent during the self-test stand for broken
+					 * keys (keys being down). The code *should* be a break
+					 * code, but nevertheless some AT keyboard interfaces send
+					 * make codes instead. Therefore, simply ignore
+					 * break_flag...
+					 */
+					int keyval = plain_map[scancode], keytyp;
+
+					set_bit(scancode, broken_keys);
+					self_test_last_rcv = jiffies;
+					keyval = plain_map[scancode];
+					keytyp = KTYP(keyval) - 0xf0;
+					keyval = KVAL(keyval);
+
+					printk(KERN_WARNING "Key with scancode %d ", scancode);
+					if (keytyp == KT_LATIN || keytyp == KT_LETTER) {
+						if (keyval < ' ')
+							printk("('^%c') ", keyval + '@');
+						else
+							printk("('%c') ", keyval);
+					}
+					printk("is broken -- will be ignored.\n");
+					break;
+				} else if (test_bit(scancode, broken_keys))
+					break;
+
+#if 0	// FIXME; hangs at boot
+				if (break_flag) {
+					del_timer(&atakeyb_rep_timer);
+					rep_scancode = 0;
+				} else {
+					del_timer(&atakeyb_rep_timer);
+					rep_scancode = scancode;
+					atakeyb_rep_timer.expires = jiffies + key_repeat_delay;
+					add_timer(&atakeyb_rep_timer);
+				}
+#endif
+
+				// handle_scancode(scancode, !break_flag);
+				if (atari_input_keyboard_interrupt_hook)
+					atari_input_keyboard_interrupt_hook((unsigned char)scancode, !break_flag);
+				break;
+			}
+			break;
+
+		case AMOUSE:
+			kb_state.buf[kb_state.len++] = scancode;
+			if (kb_state.len == 5) {
+				kb_state.state = KEYBOARD;
+				/* not yet used */
+				/* wake up someone waiting for this */
+			}
+			break;
+
+		case RMOUSE:
+			kb_state.buf[kb_state.len++] = scancode;
+			if (kb_state.len == 3) {
+				kb_state.state = KEYBOARD;
+				if (atari_mouse_interrupt_hook)
+					atari_mouse_interrupt_hook(kb_state.buf);
+			}
+			break;
+
+		case JOYSTICK:
+			kb_state.buf[1] = scancode;
+			kb_state.state = KEYBOARD;
+#ifdef FIXED_ATARI_JOYSTICK
+			atari_joystick_interrupt(kb_state.buf);
+#endif
+			break;
+
+		case CLOCK:
+			kb_state.buf[kb_state.len++] = scancode;
+			if (kb_state.len == 6) {
+				kb_state.state = KEYBOARD;
+				/* wake up someone waiting for this.
+				   But will this ever be used, as Linux keeps its own time.
+				   Perhaps for synchronization purposes? */
+				/* wake_up_interruptible(&clock_wait); */
+			}
+			break;
+
+		case RESYNC:
+			if (kb_state.len <= 0 || IS_SYNC_CODE(scancode)) {
+				kb_state.state = KEYBOARD;
+				goto interpret_scancode;
+			}
+			kb_state.len--;
+			break;
+		}
+	}
+
+#if 0
+	if (acia_stat & ACIA_CTS)
+		/* cannot happen */;
+#endif
+
+	if (acia_stat & (ACIA_FE | ACIA_PE)) {
+		printk("Error in keyboard communication\n");
+	}
+
+	/* handle_scancode() can take a lot of time, so check again if
+	 * some character arrived
+	 */
+	goto repeat;
+}
+
+/*
+ * I write to the keyboard without using interrupts, I poll instead.
+ * This takes for the maximum length string allowed (7) at 7812.5 baud
+ * 8 data 1 start 1 stop bit: 9.0 ms
+ * If this takes too long for normal operation, interrupt driven writing
+ * is the solution. (I made a feeble attempt in that direction but I
+ * kept it simple for now.)
+ */
+void ikbd_write(const char *str, int len)
+{
+	u_char acia_stat;
+
+	if ((len < 1) || (len > 7))
+		panic("ikbd: maximum string length exceeded");
+	while (len) {
+		acia_stat = acia.key_ctrl;
+		if (acia_stat & ACIA_TDRE) {
+			acia.key_data = *str++;
+			len--;
+		}
+	}
+}
+
+/* Reset (without touching the clock) */
+void ikbd_reset(void)
+{
+	static const char cmd[2] = { 0x80, 0x01 };
+
+	ikbd_write(cmd, 2);
+
+	/*
+	 * if all's well code 0xF1 is returned, else the break codes of
+	 * all keys making contact
+	 */
+}
+
+/* Set mouse button action */
+void ikbd_mouse_button_action(int mode)
+{
+	char cmd[2] = { 0x07, mode };
+
+	ikbd_write(cmd, 2);
+}
+
+/* Set relative mouse position reporting */
+void ikbd_mouse_rel_pos(void)
+{
+	static const char cmd[1] = { 0x08 };
+
+	ikbd_write(cmd, 1);
+}
+
+/* Set absolute mouse position reporting */
+void ikbd_mouse_abs_pos(int xmax, int ymax)
+{
+	char cmd[5] = { 0x09, xmax>>8, xmax&0xFF, ymax>>8, ymax&0xFF };
+
+	ikbd_write(cmd, 5);
+}
+
+/* Set mouse keycode mode */
+void ikbd_mouse_kbd_mode(int dx, int dy)
+{
+	char cmd[3] = { 0x0A, dx, dy };
+
+	ikbd_write(cmd, 3);
+}
+
+/* Set mouse threshold */
+void ikbd_mouse_thresh(int x, int y)
+{
+	char cmd[3] = { 0x0B, x, y };
+
+	ikbd_write(cmd, 3);
+}
+
+/* Set mouse scale */
+void ikbd_mouse_scale(int x, int y)
+{
+	char cmd[3] = { 0x0C, x, y };
+
+	ikbd_write(cmd, 3);
+}
+
+/* Interrogate mouse position */
+void ikbd_mouse_pos_get(int *x, int *y)
+{
+	static const char cmd[1] = { 0x0D };
+
+	ikbd_write(cmd, 1);
+
+	/* wait for returning bytes */
+}
+
+/* Load mouse position */
+void ikbd_mouse_pos_set(int x, int y)
+{
+	char cmd[6] = { 0x0E, 0x00, x>>8, x&0xFF, y>>8, y&0xFF };
+
+	ikbd_write(cmd, 6);
+}
+
+/* Set Y=0 at bottom */
+void ikbd_mouse_y0_bot(void)
+{
+	static const char cmd[1] = { 0x0F };
+
+	ikbd_write(cmd, 1);
+}
+
+/* Set Y=0 at top */
+void ikbd_mouse_y0_top(void)
+{
+	static const char cmd[1] = { 0x10 };
+
+	ikbd_write(cmd, 1);
+}
+
+/* Resume */
+void ikbd_resume(void)
+{
+	static const char cmd[1] = { 0x11 };
+
+	ikbd_write(cmd, 1);
+}
+
+/* Disable mouse */
+void ikbd_mouse_disable(void)
+{
+	static const char cmd[1] = { 0x12 };
+
+	ikbd_write(cmd, 1);
+}
+
+/* Pause output */
+void ikbd_pause(void)
+{
+	static const char cmd[1] = { 0x13 };
+
+	ikbd_write(cmd, 1);
+}
+
+/* Set joystick event reporting */
+void ikbd_joystick_event_on(void)
+{
+	static const char cmd[1] = { 0x14 };
+
+	ikbd_write(cmd, 1);
+}
+
+/* Set joystick interrogation mode */
+void ikbd_joystick_event_off(void)
+{
+	static const char cmd[1] = { 0x15 };
+
+	ikbd_write(cmd, 1);
+}
+
+/* Joystick interrogation */
+void ikbd_joystick_get_state(void)
+{
+	static const char cmd[1] = { 0x16 };
+
+	ikbd_write(cmd, 1);
+}
+
+#if 0
+/* This disables all other ikbd activities !!!! */
+/* Set joystick monitoring */
+void ikbd_joystick_monitor(int rate)
+{
+	static const char cmd[2] = { 0x17, rate };
+
+	ikbd_write(cmd, 2);
+
+	kb_state.state = JOYSTICK_MONITOR;
+}
+#endif
+
+/* some joystick routines not in yet (0x18-0x19) */
+
+/* Disable joysticks */
+void ikbd_joystick_disable(void)
+{
+	static const char cmd[1] = { 0x1A };
+
+	ikbd_write(cmd, 1);
+}
+
+/* Time-of-day clock set */
+void ikbd_clock_set(int year, int month, int day, int hour, int minute, int second)
+{
+	char cmd[7] = { 0x1B, year, month, day, hour, minute, second };
+
+	ikbd_write(cmd, 7);
+}
+
+/* Interrogate time-of-day clock */
+void ikbd_clock_get(int *year, int *month, int *day, int *hour, int *minute, int second)
+{
+	static const char cmd[1] = { 0x1C };
+
+	ikbd_write(cmd, 1);
+}
+
+/* Memory load */
+void ikbd_mem_write(int address, int size, char *data)
+{
+	panic("Attempt to write data into keyboard memory");
+}
+
+/* Memory read */
+void ikbd_mem_read(int address, char data[6])
+{
+	char cmd[3] = { 0x21, address>>8, address&0xFF };
+
+	ikbd_write(cmd, 3);
+
+	/* receive data and put it in data */
+}
+
+/* Controller execute */
+void ikbd_exec(int address)
+{
+	char cmd[3] = { 0x22, address>>8, address&0xFF };
+
+	ikbd_write(cmd, 3);
+}
+
+/* Status inquiries (0x87-0x9A) not yet implemented */
+
+/* Set the state of the caps lock led. */
+void atari_kbd_leds(unsigned int leds)
+{
+	char cmd[6] = {32, 0, 4, 1, 254 + ((leds & 4) != 0), 0};
+
+	ikbd_write(cmd, 6);
+}
+
+/*
+ * The original code sometimes left the interrupt line of
+ * the ACIAs low forever. I hope, it is fixed now.
+ *
+ * Martin Rogge, 20 Aug 1995
+ */
+
+static int atari_keyb_done = 0;
+
+int __init atari_keyb_init(void)
+{
+	if (atari_keyb_done)
+		return 0;
+
+	/* setup key map */
+	memcpy(key_maps[0], ataplain_map, sizeof(plain_map));
+
+	kb_state.state = KEYBOARD;
+	kb_state.len = 0;
+
+	request_irq(IRQ_MFP_ACIA, atari_keyboard_interrupt, IRQ_TYPE_SLOW,
+		    "keyboard/mouse/MIDI", atari_keyboard_interrupt);
+
+	atari_turnoff_irq(IRQ_MFP_ACIA);
+	do {
+		/* reset IKBD ACIA */
+		acia.key_ctrl = ACIA_RESET |
+				(atari_switches & ATARI_SWITCH_IKBD) ? ACIA_RHTID : 0;
+		(void)acia.key_ctrl;
+		(void)acia.key_data;
+
+		/* reset MIDI ACIA */
+		acia.mid_ctrl = ACIA_RESET |
+				(atari_switches & ATARI_SWITCH_MIDI) ? ACIA_RHTID : 0;
+		(void)acia.mid_ctrl;
+		(void)acia.mid_data;
+
+		/* divide 500kHz by 64 gives 7812.5 baud */
+		/* 8 data no parity 1 start 1 stop bit */
+		/* receive interrupt enabled */
+		/* RTS low (except if switch selected), transmit interrupt disabled */
+		acia.key_ctrl = (ACIA_DIV64|ACIA_D8N1S|ACIA_RIE) |
+				((atari_switches & ATARI_SWITCH_IKBD) ?
+				 ACIA_RHTID : ACIA_RLTID);
+
+		acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S |
+				(atari_switches & ATARI_SWITCH_MIDI) ? ACIA_RHTID : 0;
+
+	/* make sure the interrupt line is up */
+	} while ((mfp.par_dt_reg & 0x10) == 0);
+
+	/* enable ACIA Interrupts */
+	mfp.active_edge &= ~0x10;
+	atari_turnon_irq(IRQ_MFP_ACIA);
+
+	ikbd_self_test = 1;
+	ikbd_reset();
+	/* wait for a period of inactivity (here: 0.25s), then assume the IKBD's
+	 * self-test is finished */
+	self_test_last_rcv = jiffies;
+	while (time_before(jiffies, self_test_last_rcv + HZ/4))
+		barrier();
+	/* if not incremented: no 0xf1 received */
+	if (ikbd_self_test == 1)
+		printk(KERN_ERR "WARNING: keyboard self test failed!\n");
+	ikbd_self_test = 0;
+
+	ikbd_mouse_disable();
+	ikbd_joystick_disable();
+
+#ifdef FIXED_ATARI_JOYSTICK
+	atari_joystick_init();
+#endif
+
+	// flag init done
+	atari_keyb_done = 1;
+	return 0;
+}
+
+
+int atari_kbdrate(struct kbd_repeat *k)
+{
+	if (k->delay > 0) {
+		/* convert from msec to jiffies */
+		key_repeat_delay = (k->delay * HZ + 500) / 1000;
+		if (key_repeat_delay < 1)
+			key_repeat_delay = 1;
+	}
+	if (k->period > 0) {
+		key_repeat_rate = (k->period * HZ + 500) / 1000;
+		if (key_repeat_rate < 1)
+			key_repeat_rate = 1;
+	}
+
+	k->delay  = key_repeat_delay * 1000 / HZ;
+	k->period = key_repeat_rate  * 1000 / HZ;
+
+	return 0;
+}
+
+int atari_kbd_translate(unsigned char keycode, unsigned char *keycodep, char raw_mode)
+{
+#ifdef CONFIG_MAGIC_SYSRQ
+	/* ALT+HELP pressed? */
+	if ((keycode == 98) && ((shift_state & 0xff) == 8))
+		*keycodep = 0xff;
+	else
+#endif
+		*keycodep = keycode;
+	return 1;
+}
@@ -164,6 +164,17 @@
 	  To compile this driver as a module, choose M here: the
 	  module will be called amikbd.
  
+config KEYBOARD_ATARI
+	tristate "Atari keyboard"
+	depends on ATARI
+	select ATARI_KBD_CORE
+	help
+	  Say Y here if you are running Linux on any Atari and have a keyboard
+	  attached.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called atakbd.
+
 config KEYBOARD_HIL_OLD
 	tristate "HP HIL keyboard support (simple driver)"
 	depends on GSC || HP300
@@ -9,6 +9,7 @@
 obj-$(CONFIG_KEYBOARD_LKKBD)		+= lkkbd.o
 obj-$(CONFIG_KEYBOARD_XTKBD)		+= xtkbd.o
 obj-$(CONFIG_KEYBOARD_AMIGA)		+= amikbd.o
+obj-$(CONFIG_KEYBOARD_ATARI)		+= atakbd.o
 obj-$(CONFIG_KEYBOARD_LOCOMO)		+= locomokbd.o
 obj-$(CONFIG_KEYBOARD_NEWTON)		+= newtonkbd.o
 obj-$(CONFIG_KEYBOARD_STOWAWAY)		+= stowaway.o
+/*
+ *  atakbd.c
+ *
+ *  Copyright (c) 2005 Michael Schmitz
+ *
+ * Based on amikbd.c, which is
+ *
+ *  Copyright (c) 2000-2001 Vojtech Pavlik
+ *
+ *  Based on the work of:
+ *	Hamish Macdonald
+ */
+
+/*
+ * Atari keyboard driver for Linux/m68k
+ *
+ * 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.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+
+#include <asm/atariints.h>
+#include <asm/atarihw.h>
+#include <asm/atarikb.h>
+#include <asm/irq.h>
+
+MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>");
+MODULE_DESCRIPTION("Atari keyboard driver");
+MODULE_LICENSE("GPL");
+
+static unsigned char atakbd_keycode[0x72];
+
+static struct input_dev *atakbd_dev;
+
+static void atakbd_interrupt(unsigned char scancode, char down)
+{
+
+	if (scancode < 0x72) {		/* scancodes < 0xf2 are keys */
+
+		// report raw events here?
+
+		scancode = atakbd_keycode[scancode];
+
+		if (scancode == KEY_CAPSLOCK) {	/* CapsLock is a toggle switch key on Amiga */
+			input_report_key(atakbd_dev, scancode, 1);
+			input_report_key(atakbd_dev, scancode, 0);
+			input_sync(atakbd_dev);
+		} else {
+			input_report_key(atakbd_dev, scancode, down);
+			input_sync(atakbd_dev);
+		}
+	} else				/* scancodes >= 0xf2 are mouse data, most likely */
+		printk(KERN_INFO "atakbd: unhandled scancode %x\n", scancode);
+
+	return;
+}
+
+static int __init atakbd_init(void)
+{
+	int i;
+
+	if (!ATARIHW_PRESENT(ST_MFP))
+		return -EIO;
+
+	// TODO: request_mem_region if not done in arch code
+
+	if (!(atakbd_dev = input_allocate_device()))
+		return -ENOMEM;
+
+	// need to init core driver if not already done so
+	if (atari_keyb_init())
+		return -ENODEV;
+
+	atakbd_dev->name = "Atari Keyboard";
+	atakbd_dev->phys = "atakbd/input0";
+	atakbd_dev->id.bustype = BUS_ATARI;
+	atakbd_dev->id.vendor = 0x0001;
+	atakbd_dev->id.product = 0x0001;
+	atakbd_dev->id.version = 0x0100;
+
+	atakbd_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
+	atakbd_dev->keycode = atakbd_keycode;
+	atakbd_dev->keycodesize = sizeof(unsigned char);
+	atakbd_dev->keycodemax = ARRAY_SIZE(atakbd_keycode);
+
+	for (i = 1; i < 0x72; i++) {
+		atakbd_keycode[i] = i;
+		set_bit(atakbd_keycode[i], atakbd_dev->keybit);
+	}
+
+	input_register_device(atakbd_dev);
+
+	atari_input_keyboard_interrupt_hook = atakbd_interrupt;
+
+	printk(KERN_INFO "input: %s at IKBD ACIA\n", atakbd_dev->name);
+
+	return 0;
+}
+
+static void __exit atakbd_exit(void)
+{
+	atari_input_keyboard_interrupt_hook = NULL;
+	input_unregister_device(atakbd_dev);
+}
+
+module_init(atakbd_init);
+module_exit(atakbd_exit);
@@ -96,6 +96,17 @@
 	  To compile this driver as a module, choose M here: the
 	  module will be called amimouse.
  
+config MOUSE_ATARI
+	tristate "Atari mouse"
+	depends on ATARI
+	select ATARI_KBD_CORE
+	help
+	  Say Y here if you have an Atari and want its native mouse
+	  supported by the kernel.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called atarimouse.
+
 config MOUSE_RISCPC
 	tristate "Acorn RiscPC mouse"
 	depends on ARCH_ACORN
@@ -5,6 +5,7 @@
 # Each configuration option enables a list of files.
  
 obj-$(CONFIG_MOUSE_AMIGA)	+= amimouse.o
+obj-$(CONFIG_MOUSE_ATARI)	+= atarimouse.o
 obj-$(CONFIG_MOUSE_RISCPC)	+= rpcmouse.o
 obj-$(CONFIG_MOUSE_INPORT)	+= inport.o
 obj-$(CONFIG_MOUSE_LOGIBM)	+= logibm.o
+/*
+ *  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/system.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};
+
+#ifdef __MODULE__
+MODULE_PARM(mouse_threshold, "2i");
+#endif
+#ifdef FIXED_ATARI_JOYSTICK
+extern int atari_mouse_buttons;
+#endif
+static int atamouse_used = 0;
+
+static struct input_dev *atamouse_dev;
+
+static void atamouse_interrupt(char *buf)
+{
+	int buttons, dx, dy;
+
+/*	ikbd_mouse_disable(); */
+
+	buttons = (buf[0] & 1) | ((buf[0] & 2) << 1);
+#ifdef FIXED_ATARI_JOYSTICK
+	buttons |= atari_mouse_buttons & 2;
+	atari_mouse_buttons = buttons;
+#endif
+/*	ikbd_mouse_rel_pos(); */
+
+	/* 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 & 0x1);
+	input_report_key(atamouse_dev, BTN_MIDDLE, buttons & 0x2);
+	input_report_key(atamouse_dev, BTN_RIGHT,  buttons & 0x4);
+
+	input_sync(atamouse_dev);
+
+	return;
+}
+
+static int atamouse_open(struct input_dev *dev)
+{
+	if (atamouse_used++)
+		return 0;
+
+#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)
+{
+	if (!--atamouse_used) {
+		ikbd_mouse_disable();
+		atari_mouse_interrupt_hook = NULL;
+	}
+}
+
+static int __init atamouse_init(void)
+{
+	if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP))
+		return -ENODEV;
+
+	if (!(atamouse_dev = input_allocate_device()))
+		return -ENOMEM;
+
+	if (!(atari_keyb_init()))
+		return -ENODEV;
+
+	atamouse_dev->name = "Atari mouse";
+	atamouse_dev->phys = "atamouse/input0";
+	atamouse_dev->id.bustype = BUS_ATARI;
+	atamouse_dev->id.vendor = 0x0001;
+	atamouse_dev->id.product = 0x0002;
+	atamouse_dev->id.version = 0x0100;
+
+	atamouse_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
+	atamouse_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
+	atamouse_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
+	atamouse_dev->open = atamouse_open;
+	atamouse_dev->close = atamouse_close;
+
+	input_register_device(atamouse_dev);
+
+	printk(KERN_INFO "input: %s at keyboard ACIA\n", atamouse_dev->name);
+	return 0;
+}
+
+static void __exit atamouse_exit(void)
+{
+	input_unregister_device(atamouse_dev);
+}
+
+module_init(atamouse_init);
+module_exit(atamouse_exit);
@@ -36,6 +36,12 @@
 extern void (*atari_MIDI_interrupt_hook) (void);
 /* Hook for mouse driver */
 extern void (*atari_mouse_interrupt_hook) (char *);
+/* Hook for keyboard inputdev  driver */
+extern void (*atari_input_keyboard_interrupt_hook) (unsigned char, char);
+/* Hook for mouse inputdev  driver */
+extern void (*atari_input_mouse_interrupt_hook) (char *);
+
+int atari_keyb_init(void);
  
 #endif /* _LINUX_ATARIKB_H */
@@ -676,6 +676,7 @@
 #define BUS_I2C			0x18
 #define BUS_HOST		0x19
 #define BUS_GSC			0x1A
+#define BUS_ATARI		0x1B
  
 /*
  * Values describing the status of a force-feedback effect
...	...	@@ -409,6 +409,9 @@
409	409	help
410	410	Say Y here to report ST-RAM usage statistics in /proc/stram.
411	411
	412	+config ATARI_KBD_CORE
	413	+ bool
	414	+
412	415	config HEARTBEAT
413	416	bool "Use power LED as a heartbeat" if AMIGA \|\| APOLLO \|\| ATARI \|\| MAC \|\|Q40
414	417	default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300
...	...	@@ -8,4 +8,5 @@
8	8	ifeq ($(CONFIG_PCI),y)
9	9	obj-$(CONFIG_HADES) += hades-pci.o
10	10	endif
	11	+obj-$(CONFIG_ATARI_KBD_CORE) += atakeyb.o
...	...	@@ -164,6 +164,17 @@
164	164	To compile this driver as a module, choose M here: the
165	165	module will be called amikbd.
166	166
	167	+config KEYBOARD_ATARI
	168	+ tristate "Atari keyboard"
	169	+ depends on ATARI
	170	+ select ATARI_KBD_CORE
	171	+ help
	172	+ Say Y here if you are running Linux on any Atari and have a keyboard
	173	+ attached.
	174	+
	175	+ To compile this driver as a module, choose M here: the
	176	+ module will be called atakbd.
	177	+
167	178	config KEYBOARD_HIL_OLD
168	179	tristate "HP HIL keyboard support (simple driver)"
169	180	depends on GSC \|\| HP300
...	...	@@ -9,6 +9,7 @@
9	9	obj-$(CONFIG_KEYBOARD_LKKBD) += lkkbd.o
10	10	obj-$(CONFIG_KEYBOARD_XTKBD) += xtkbd.o
11	11	obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o
	12	+obj-$(CONFIG_KEYBOARD_ATARI) += atakbd.o
12	13	obj-$(CONFIG_KEYBOARD_LOCOMO) += locomokbd.o
13	14	obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o
14	15	obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o
	1	+/*
	2	+ * atakbd.c
	3	+ *
	4	+ * Copyright (c) 2005 Michael Schmitz
	5	+ *
	6	+ * Based on amikbd.c, which is
	7	+ *
	8	+ * Copyright (c) 2000-2001 Vojtech Pavlik
	9	+ *
	10	+ * Based on the work of:
	11	+ * Hamish Macdonald
	12	+ */
	13	+
	14	+/*
	15	+ * Atari keyboard driver for Linux/m68k
	16	+ *
	17	+ * The low level init and interrupt stuff is handled in arch/mm68k/atari/atakeyb.c
	18	+ * (the keyboard ACIA also handles the mouse and joystick data, and the keyboard
	19	+ * interrupt is shared with the MIDI ACIA so MIDI data also get handled there).
	20	+ * This driver only deals with handing key events off to the input layer.
	21	+ */
	22	+
	23	+/*
	24	+ * This program is free software; you can redistribute it and/or modify
	25	+ * it under the terms of the GNU General Public License as published by
	26	+ * the Free Software Foundation; either version 2 of the License, or
	27	+ * (at your option) any later version.
	28	+ *
	29	+ * This program is distributed in the hope that it will be useful,
	30	+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
	31	+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	32	+ * GNU General Public License for more details.
	33	+ *
	34	+ * You should have received a copy of the GNU General Public License
	35	+ * along with this program; if not, write to the Free Software
	36	+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	37	+ *
	38	+ * Should you need to contact me, the author, you can do so either by
	39	+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
	40	+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
	41	+ */
	42	+
	43	+#include <linux/module.h>
	44	+#include <linux/init.h>
	45	+#include <linux/input.h>
	46	+#include <linux/delay.h>
	47	+#include <linux/interrupt.h>
	48	+
	49	+#include <asm/atariints.h>
	50	+#include <asm/atarihw.h>
	51	+#include <asm/atarikb.h>
	52	+#include <asm/irq.h>
	53	+
	54	+MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>");
	55	+MODULE_DESCRIPTION("Atari keyboard driver");
	56	+MODULE_LICENSE("GPL");
	57	+
	58	+static unsigned char atakbd_keycode[0x72];
	59	+
	60	+static struct input_dev *atakbd_dev;
	61	+
	62	+static void atakbd_interrupt(unsigned char scancode, char down)
	63	+{
	64	+
	65	+ if (scancode < 0x72) { /* scancodes < 0xf2 are keys */
	66	+
	67	+ // report raw events here?
	68	+
	69	+ scancode = atakbd_keycode[scancode];
	70	+
	71	+ if (scancode == KEY_CAPSLOCK) { /* CapsLock is a toggle switch key on Amiga */
	72	+ input_report_key(atakbd_dev, scancode, 1);
	73	+ input_report_key(atakbd_dev, scancode, 0);
	74	+ input_sync(atakbd_dev);
	75	+ } else {
	76	+ input_report_key(atakbd_dev, scancode, down);
	77	+ input_sync(atakbd_dev);
	78	+ }
	79	+ } else /* scancodes >= 0xf2 are mouse data, most likely */
	80	+ printk(KERN_INFO "atakbd: unhandled scancode %x\n", scancode);
	81	+
	82	+ return;
	83	+}
	84	+
	85	+static int __init atakbd_init(void)
	86	+{
	87	+ int i;
	88	+
	89	+ if (!ATARIHW_PRESENT(ST_MFP))
	90	+ return -EIO;
	91	+
	92	+ // TODO: request_mem_region if not done in arch code
	93	+
	94	+ if (!(atakbd_dev = input_allocate_device()))
	95	+ return -ENOMEM;
	96	+
	97	+ // need to init core driver if not already done so
	98	+ if (atari_keyb_init())
	99	+ return -ENODEV;
	100	+
	101	+ atakbd_dev->name = "Atari Keyboard";
	102	+ atakbd_dev->phys = "atakbd/input0";
	103	+ atakbd_dev->id.bustype = BUS_ATARI;
	104	+ atakbd_dev->id.vendor = 0x0001;
	105	+ atakbd_dev->id.product = 0x0001;
	106	+ atakbd_dev->id.version = 0x0100;
	107	+
	108	+ atakbd_dev->evbit[0] = BIT(EV_KEY) \| BIT(EV_REP);
	109	+ atakbd_dev->keycode = atakbd_keycode;
	110	+ atakbd_dev->keycodesize = sizeof(unsigned char);
	111	+ atakbd_dev->keycodemax = ARRAY_SIZE(atakbd_keycode);
	112	+
	113	+ for (i = 1; i < 0x72; i++) {
	114	+ atakbd_keycode[i] = i;
	115	+ set_bit(atakbd_keycode[i], atakbd_dev->keybit);
	116	+ }
	117	+
	118	+ input_register_device(atakbd_dev);
	119	+
	120	+ atari_input_keyboard_interrupt_hook = atakbd_interrupt;
	121	+
	122	+ printk(KERN_INFO "input: %s at IKBD ACIA\n", atakbd_dev->name);
	123	+
	124	+ return 0;
	125	+}
	126	+
	127	+static void __exit atakbd_exit(void)
	128	+{
	129	+ atari_input_keyboard_interrupt_hook = NULL;
	130	+ input_unregister_device(atakbd_dev);
	131	+}
	132	+
	133	+module_init(atakbd_init);
	134	+module_exit(atakbd_exit);
...	...	@@ -96,6 +96,17 @@
96	96	To compile this driver as a module, choose M here: the
97	97	module will be called amimouse.
98	98
	99	+config MOUSE_ATARI
	100	+ tristate "Atari mouse"
	101	+ depends on ATARI
	102	+ select ATARI_KBD_CORE
	103	+ help
	104	+ Say Y here if you have an Atari and want its native mouse
	105	+ supported by the kernel.
	106	+
	107	+ To compile this driver as a module, choose M here: the
	108	+ module will be called atarimouse.
	109	+
99	110	config MOUSE_RISCPC
100	111	tristate "Acorn RiscPC mouse"
101	112	depends on ARCH_ACORN
...	...	@@ -5,6 +5,7 @@
5	5	# Each configuration option enables a list of files.
6	6
7	7	obj-$(CONFIG_MOUSE_AMIGA) += amimouse.o
	8	+obj-$(CONFIG_MOUSE_ATARI) += atarimouse.o
8	9	obj-$(CONFIG_MOUSE_RISCPC) += rpcmouse.o
9	10	obj-$(CONFIG_MOUSE_INPORT) += inport.o
10	11	obj-$(CONFIG_MOUSE_LOGIBM) += logibm.o
	1	+/*
	2	+ * Atari mouse driver for Linux/m68k
	3	+ *
	4	+ * Copyright (c) 2005 Michael Schmitz
	5	+ *
	6	+ * Based on:
	7	+ * Amiga mouse driver for Linux/m68k
	8	+ *
	9	+ * Copyright (c) 2000-2002 Vojtech Pavlik
	10	+ *
	11	+ */
	12	+/*
	13	+ * The low level init and interrupt stuff is handled in arch/mm68k/atari/atakeyb.c
	14	+ * (the keyboard ACIA also handles the mouse and joystick data, and the keyboard
	15	+ * interrupt is shared with the MIDI ACIA so MIDI data also get handled there).
	16	+ * This driver only deals with handing key events off to the input layer.
	17	+ *
	18	+ * Largely based on the old:
	19	+ *
	20	+ * Atari Mouse Driver for Linux
	21	+ * by Robert de Vries (robert@and.nl) 19Jul93
	22	+ *
	23	+ * 16 Nov 1994 Andreas Schwab
	24	+ * Compatibility with busmouse
	25	+ * Support for three button mouse (shamelessly stolen from MiNT)
	26	+ * third button wired to one of the joystick directions on joystick 1
	27	+ *
	28	+ * 1996/02/11 Andreas Schwab
	29	+ * Module support
	30	+ * Allow multiple open's
	31	+ *
	32	+ * Converted to use new generic busmouse code. 5 Apr 1998
	33	+ * Russell King <rmk@arm.uk.linux.org>
	34	+ */
	35	+
	36	+
	37	+/*
	38	+ * This program is free software; you can redistribute it and/or modify it
	39	+ * under the terms of the GNU General Public License version 2 as published by
	40	+ * the Free Software Foundation
	41	+ */
	42	+
	43	+#include <linux/module.h>
	44	+#include <linux/init.h>
	45	+#include <linux/input.h>
	46	+#include <linux/interrupt.h>
	47	+
	48	+#include <asm/irq.h>
	49	+#include <asm/setup.h>
	50	+#include <asm/system.h>
	51	+#include <asm/uaccess.h>
	52	+#include <asm/atarihw.h>
	53	+#include <asm/atarikb.h>
	54	+#include <asm/atariints.h>
	55	+
	56	+MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>");
	57	+MODULE_DESCRIPTION("Atari mouse driver");
	58	+MODULE_LICENSE("GPL");
	59	+
	60	+static int mouse_threshold[2] = {2,2};
	61	+
	62	+#ifdef __MODULE__
	63	+MODULE_PARM(mouse_threshold, "2i");
	64	+#endif
	65	+#ifdef FIXED_ATARI_JOYSTICK
	66	+extern int atari_mouse_buttons;
	67	+#endif
	68	+static int atamouse_used = 0;
	69	+
	70	+static struct input_dev *atamouse_dev;
	71	+
	72	+static void atamouse_interrupt(char *buf)
	73	+{
	74	+ int buttons, dx, dy;
	75	+
	76	+/* ikbd_mouse_disable(); */
	77	+
	78	+ buttons = (buf[0] & 1) \| ((buf[0] & 2) << 1);
	79	+#ifdef FIXED_ATARI_JOYSTICK
	80	+ buttons \|= atari_mouse_buttons & 2;
	81	+ atari_mouse_buttons = buttons;
	82	+#endif
	83	+/* ikbd_mouse_rel_pos(); */
	84	+
	85	+ /* only relative events get here */
	86	+ dx = buf[1];
	87	+ dy = -buf[2];
	88	+
	89	+ input_report_rel(atamouse_dev, REL_X, dx);
	90	+ input_report_rel(atamouse_dev, REL_Y, dy);
	91	+
	92	+ input_report_key(atamouse_dev, BTN_LEFT, buttons & 0x1);
	93	+ input_report_key(atamouse_dev, BTN_MIDDLE, buttons & 0x2);
	94	+ input_report_key(atamouse_dev, BTN_RIGHT, buttons & 0x4);
	95	+
	96	+ input_sync(atamouse_dev);
	97	+
	98	+ return;
	99	+}
	100	+
	101	+static int atamouse_open(struct input_dev *dev)
	102	+{
	103	+ if (atamouse_used++)
	104	+ return 0;
	105	+
	106	+#ifdef FIXED_ATARI_JOYSTICK
	107	+ atari_mouse_buttons = 0;
	108	+#endif
	109	+ ikbd_mouse_y0_top();
	110	+ ikbd_mouse_thresh(mouse_threshold[0], mouse_threshold[1]);
	111	+ ikbd_mouse_rel_pos();
	112	+ atari_input_mouse_interrupt_hook = atamouse_interrupt;
	113	+ return 0;
	114	+}
	115	+
	116	+static void atamouse_close(struct input_dev *dev)
	117	+{
	118	+ if (!--atamouse_used) {
	119	+ ikbd_mouse_disable();
	120	+ atari_mouse_interrupt_hook = NULL;
	121	+ }
	122	+}
	123	+
	124	+static int __init atamouse_init(void)
	125	+{
	126	+ if (!MACH_IS_ATARI \|\| !ATARIHW_PRESENT(ST_MFP))
	127	+ return -ENODEV;
	128	+
	129	+ if (!(atamouse_dev = input_allocate_device()))
	130	+ return -ENOMEM;
	131	+
	132	+ if (!(atari_keyb_init()))
	133	+ return -ENODEV;
	134	+
	135	+ atamouse_dev->name = "Atari mouse";
	136	+ atamouse_dev->phys = "atamouse/input0";
	137	+ atamouse_dev->id.bustype = BUS_ATARI;
	138	+ atamouse_dev->id.vendor = 0x0001;
	139	+ atamouse_dev->id.product = 0x0002;
	140	+ atamouse_dev->id.version = 0x0100;
	141	+
	142	+ atamouse_dev->evbit[0] = BIT(EV_KEY) \| BIT(EV_REL);
	143	+ atamouse_dev->relbit[0] = BIT(REL_X) \| BIT(REL_Y);
	144	+ atamouse_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) \| BIT(BTN_MIDDLE) \| BIT(BTN_RIGHT);
	145	+ atamouse_dev->open = atamouse_open;
	146	+ atamouse_dev->close = atamouse_close;
	147	+
	148	+ input_register_device(atamouse_dev);
	149	+
	150	+ printk(KERN_INFO "input: %s at keyboard ACIA\n", atamouse_dev->name);
	151	+ return 0;
	152	+}
	153	+
	154	+static void __exit atamouse_exit(void)
	155	+{
	156	+ input_unregister_device(atamouse_dev);
	157	+}
	158	+
	159	+module_init(atamouse_init);
	160	+module_exit(atamouse_exit);
...	...	@@ -36,6 +36,12 @@
36	36	extern void (*atari_MIDI_interrupt_hook) (void);
37	37	/* Hook for mouse driver */
38	38	extern void (atari_mouse_interrupt_hook) (char );
	39	+/* Hook for keyboard inputdev driver */
	40	+extern void (*atari_input_keyboard_interrupt_hook) (unsigned char, char);
	41	+/* Hook for mouse inputdev driver */
	42	+extern void (atari_input_mouse_interrupt_hook) (char );
	43	+
	44	+int atari_keyb_init(void);
39	45
40	46	#endif /* _LINUX_ATARIKB_H */
...	...	@@ -676,6 +676,7 @@
676	676	#define BUS_I2C 0x18
677	677	#define BUS_HOST 0x19
678	678	#define BUS_GSC 0x1A
	679	+#define BUS_ATARI 0x1B
679	680
680	681	/*
681	682	* Values describing the status of a force-feedback effect