mac_hid.c

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    0644, NULL, &proc_dointvec
  },
  {
    DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE,
    "mouse_button2_keycode", &mouse_button2_keycode, sizeof(int),
    0644, NULL, &proc_dointvec
  },
  {
    DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE,
    "mouse_button3_keycode", &mouse_button3_keycode, sizeof(int),
    0644, NULL, &proc_dointvec
  },
#endif
  { 0 }
};

/* dir in /proc/sys/dev */
ctl_table mac_hid_dir[] =
{
  { DEV_MAC_HID, "mac_hid", NULL, 0, 0555, mac_hid_files },
  { 0 }
};

/* /proc/sys/dev itself, in case that is not there yet */
ctl_table mac_hid_root_dir[] =
{
  { CTL_DEV, "dev", NULL, 0, 0555, mac_hid_dir },
  { 0 }
};

static struct ctl_table_header *mac_hid_sysctl_header;

#ifdef CONFIG_MAC_ADBKEYCODES
static
int mac_hid_sysctl_keycodes(ctl_table *ctl, int write, struct file * filp,
			    void *buffer, size_t *lenp)
{
	int val = keyboard_sends_linux_keycodes;
	int ret = 0;

	if (!write
	    || (write && !keyboard_lock_keycodes))
		ret = proc_dointvec(ctl, write, filp, buffer, lenp);

	if (write
	    && keyboard_sends_linux_keycodes != val) {
		if (!keyboard_sends_linux_keycodes) {
#ifdef CONFIG_MAGIC_SYSRQ
			ppc_md.ppc_kbd_sysrq_xlate   = mac_hid_kbd_sysrq_xlate;
			SYSRQ_KEY                = 0x69;
#endif
			memcpy(pc_key_maps_save, key_maps, sizeof(key_maps));
			memcpy(key_maps, mac_key_maps_save, sizeof(key_maps));
		} else {
#ifdef CONFIG_MAGIC_SYSRQ
			ppc_md.ppc_kbd_sysrq_xlate   = pckbd_sysrq_xlate;
			SYSRQ_KEY                = 0x54;
#endif
			memcpy(mac_key_maps_save, key_maps, sizeof(key_maps));
			memcpy(key_maps, pc_key_maps_save, sizeof(key_maps));
		}
	}

	return ret;
}
#endif
#endif /* endif CONFIG_SYSCTL */

int mac_hid_kbd_translate(unsigned char scancode, unsigned char *keycode,
			  char raw_mode)
{
#ifdef CONFIG_MAC_ADBKEYCODES
	if (!keyboard_sends_linux_keycodes) {
		if (!raw_mode) {
		/*
		 * Convert R-shift/control/option to L version.
		 */
			switch (scancode) {
			case 0x7b: scancode = 0x38; break; /* R-shift */
			case 0x7c: scancode = 0x3a; break; /* R-option */
			case 0x7d: scancode = 0x36; break; /* R-control */
			}
		}
		*keycode = scancode;
		return 1;
	} else
#endif
	{
		/* This code was copied from char/pc_keyb.c and will be
		 * superflous when the input layer is fully integrated.
		 * We don't need the high_keys handling, so this part
		 * has been removed.
		 */
		static int prev_scancode = 0;

		/* special prefix scancodes.. */
		if (scancode == 0xe0 || scancode == 0xe1) {
			prev_scancode = scancode;
			return 0;
		}

		scancode &= 0x7f;

		if (prev_scancode) {
			if (prev_scancode != 0xe0) {
				if (prev_scancode == 0xe1 && scancode == 0x1d) {
					prev_scancode = 0x100;
					return 0;
				} else if (prev_scancode == 0x100 && scancode == 0x45) {
					*keycode = KEY_PAUSE;
					prev_scancode = 0;
				} else {
					if (!raw_mode)
						printk(KERN_INFO "keyboard: unknown e1 escape sequence\n");
					prev_scancode = 0;
					return 0;
				}
			} else {
				prev_scancode = 0;
				if (scancode == 0x2a || scancode == 0x36)
					return 0;
			}
			if (e0_keys[scancode])
				*keycode = e0_keys[scancode];
			else {
				if (!raw_mode)
					printk(KERN_INFO "keyboard: unknown scancode e0 %02x\n",
					       scancode);
				return 0;
			}
		} else {
			switch (scancode) {
			case  91: scancode = KEY_LINEFEED; break;
			case  92: scancode = KEY_KPEQUAL; break;
			case 125: scancode = KEY_INTL1; break;
			}
			*keycode = scancode;
		}
		return 1;
	}
}

char mac_hid_kbd_unexpected_up(unsigned char keycode)
{
	if (keyboard_sends_linux_keycodes && keycode == KEY_F13)
		return 0;
	else
		return 0x80;
}

#ifdef CONFIG_MAC_ADBKEYCODES
int mac_hid_keyboard_sends_linux_keycodes(void)
{
	return keyboard_sends_linux_keycodes;
}

static int __init mac_hid_setup(char *str)
{
	int ints[2];

	str = get_options(str, ARRAY_SIZE(ints), ints);
	if (ints[0] == 1) {
		keyboard_sends_linux_keycodes = ints[1] != 0;
		keyboard_lock_keycodes = 1;
	}
	return 1;
}

__setup("keyboard_sends_linux_keycodes=", mac_hid_setup);

#endif

#ifdef CONFIG_MAC_EMUMOUSEBTN
int mac_hid_mouse_emulate_buttons(int caller, unsigned int keycode, int down)
{
	switch (caller) {
	case 1:
		/* Called from keybdev.c */
		if (mouse_emulate_buttons
		    && (keycode == mouse_button2_keycode
			|| keycode == mouse_button3_keycode)) {
			if (mouse_emulate_buttons == 1) {
			 	input_report_key(&emumousebtn,
						 keycode == mouse_button2_keycode ? BTN_MIDDLE : BTN_RIGHT,
						 down);
				return 1;
			}
			mouse_last_keycode = down ? keycode : 0;
		}
		break;
	case 2:
		/* Called from mousedev.c */
		if (mouse_emulate_buttons == 2 && keycode == 0) {
			if (mouse_last_keycode == mouse_button2_keycode)
				return 1; /* map to middle button */
			if (mouse_last_keycode == mouse_button3_keycode)
				return 2; /* map to right button */
		}
		return keycode; /* keep button */
	}
	return 0;
}

static void emumousebtn_input_register(void)
{
	emumousebtn.name = "Macintosh mouse button emulation";

	emumousebtn.evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
	emumousebtn.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
	emumousebtn.relbit[0] = BIT(REL_X) | BIT(REL_Y);

	emumousebtn.idbus = BUS_ADB;
	emumousebtn.idvendor = 0x0001;
	emumousebtn.idproduct = 0x0001;
	emumousebtn.idversion = 0x0100;

	input_register_device(&emumousebtn);

	printk(KERN_INFO "input%d: Macintosh mouse button emulation\n", emumousebtn.number);
}
#endif

void __init mac_hid_init_hw(void)
{

#ifdef CONFIG_MAC_ADBKEYCODES
	memcpy(pc_key_maps_save, key_maps, sizeof(key_maps));

	if (!keyboard_sends_linux_keycodes)
		memcpy(key_maps, mac_key_maps_save, sizeof(key_maps));
#endif

#ifdef CONFIG_MAC_EMUMOUSEBTN
	emumousebtn_input_register();
#endif

#if CONFIG_PPC
	if (_machine != _MACH_Pmac)
		pckbd_init_hw();
#endif

#if defined(CONFIG_SYSCTL) && (defined(CONFIG_MAC_ADBKEYCODES) || defined(CONFIG_MAC_EMUMOUSEBTN))
	mac_hid_sysctl_header = register_sysctl_table(mac_hid_root_dir, 1);
#endif /* CONFIG_SYSCTL */
}