cleaning up olpc patch 1

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10060 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 603 insertions, 0 deletions

diff --git a/target/linux/olpc/files/drivers/input/mouse/olpc.c b/target/linux/olpc/files/drivers/input/mouse/olpc.c
new file mode 100644
index 000000000..dc575ac06
--- /dev/null
+++ b/target/linux/olpc/files/drivers/input/mouse/olpc.c
@@ -0,0 +1,554 @@
+/*
+ * OLPC touchpad PS/2 mouse driver
+ *
+ * Copyright (c) 2006 One Laptop Per Child, inc.
+ * Authors Zephaniah E. Hull and Andres Salomon <dilinger@laptop.org>
+ *
+ * This driver is partly based on the ALPS driver, which is:
+ *
+ * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com>
+ * Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru>
+ * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
+ *
+ * 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.
+ */
+
+/*
+ * The touchpad on the OLPC is fairly wide, with the entire area usable
+ * as a tablet ("PT mode"), and the center 1/3rd also usable as a touchpad
+ * ("GS mode").
+ *
+ * Earlier version of the device had simultaneous reporting; however, that
+ * was removed.  Instead, the device now reports packets in one mode, and
+ * tells the driver when a mode switch needs to happen.
+ */
+
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/libps2.h>
+#include <linux/delay.h>
+#include <asm/olpc.h>
+
+#include "psmouse.h"
+#include "olpc.h"
+
+static int tpdebug;
+module_param(tpdebug, int, 0644);
+
+#define OLPC_GS		1	/* The GS sensor. */
+#define OLPC_PT		2	/* The PT sensor. */
+
+static struct olpc_model_info olpc_model_data[] = {
+	{ { 0x67, 0x00, 0x00 }, OLPC_GS | OLPC_PT }, /* unknown ID */
+	{ { 0x67, 0x00, 0x0a }, OLPC_GS | OLPC_PT }, /* pre-B1 */
+	{ { 0x67, 0x00, 0x14 }, OLPC_GS }, /* B1.*/
+	{ { 0x67, 0x00, 0x28 }, OLPC_GS | OLPC_PT }, /* B2 */
+	{ { 0x67, 0x00, 0x3c }, OLPC_GS | OLPC_PT }, /* B2-2 */
+	{ { 0x67, 0x00, 0x50 }, OLPC_GS | OLPC_PT }, /* C1 */
+};
+
+#define OLPC_PKT_PT	0xcf
+#define OLPC_PKT_GS	0xff
+
+static int olpc_absolute_mode(struct psmouse *psmouse, int mode);
+
+/*
+ * OLPC absolute Mode - single-mode format
+ *
+ * byte 0:      1    1    0    0    1    1     1     1
+ * byte 1:      0   x6   x5   x4   x3   x2    x1    x0
+ * byte 2(PT):  0    0   x9   x8   x7    ? pt-dsw gs-dsw
+ * byte 2(GS):  0  x10   x9   x8   x7    ? gs-dsw pt-dsw
+ * byte 3:      0   y9   y8   y7    1    0   swr   swl
+ * byte 4:      0   y6   y5   y4   y3   y2    y1    y0
+ * byte 5:      0   z6   z5   z4   z3   z2    z1    z0
+ *
+ * ?'s are not defined in the protocol spec, may vary between models.
+ *
+ * swr/swl are the left/right buttons.
+ *
+ * pt-dsw/gs-dsw indicate that the pt/gs sensor is detecting a
+ * pen/finger
+ */
+
+static void olpc_process_packet_gspt(struct psmouse *psmouse)
+{
+	struct olpc_data *priv = psmouse->private;
+	unsigned char *packet = psmouse->packet;
+	struct input_dev *dev = psmouse->dev;
+	struct input_dev *dev2 = priv->dev2;
+	int x, y, z, gs_down = 0, pt_down = 0, left, right;
+	struct timeval now_tv;
+	s64 now_ns;
+
+	left = packet[3] & 1;
+	right = packet[3] & 2;
+	x = packet[1] | ((packet[2] & 0x78) << 4);
+	y = packet[4] | ((packet[3] & 0x70) << 3);
+	z = packet[5];
+
+	if (psmouse->packet[0] == OLPC_PKT_GS) {
+		pt_down = !!(packet[2] & 1);
+		gs_down = !!(packet[2] & 2);
+	} else if (psmouse->packet[0] == OLPC_PKT_PT) {
+		gs_down = !!(packet[2] & 1);
+		pt_down = !!(packet[2] & 2);
+	}
+
+	/*
+	 * XXX: Kludge.
+	 * If it's been more than 30ms since the last packet,
+	 * assume that there was a lift we were never told about.
+	 */
+	do_gettimeofday(&now_tv);
+	now_ns = timeval_to_ns (&now_tv);
+	if (now_ns >= priv->late) {
+		input_report_key(dev, BTN_TOUCH, 0);
+		input_report_key(dev, BTN_TOOL_PEN, 0);
+		input_report_key(dev2, BTN_TOUCH, 0);
+		input_report_key(dev2, BTN_TOOL_FINGER, 0);
+
+		input_sync(dev);
+		input_sync(dev2);
+	}
+
+	priv->late = now_ns + (30 * NSEC_PER_MSEC);
+
+
+	if (tpdebug) {
+		printk(KERN_DEBUG "%s %02x %02x %02x %02x %02x %02x\n",
+		       __FUNCTION__, psmouse->packet[0], psmouse->packet[1],
+		       psmouse->packet[2], psmouse->packet[3], psmouse->packet[4],
+		       psmouse->packet[5]);
+		printk(KERN_DEBUG "l=%d r=%d p=%d g=%d x=%d y=%d z=%d\n",
+		       left, right, pt_down, gs_down, x, y, z);
+	}
+
+	if (psmouse->packet[0] == OLPC_PKT_PT) {
+		input_report_key(dev, BTN_LEFT, left);
+		input_report_key(dev, BTN_RIGHT, right);
+	} else if (psmouse->packet[0] == OLPC_PKT_GS) {
+		input_report_key(dev, BTN_LEFT, left);
+		input_report_key(dev, BTN_RIGHT, right);
+		input_report_key(dev2, BTN_LEFT, left);
+		input_report_key(dev2, BTN_RIGHT, right);
+	}
+
+	input_report_key(dev, BTN_TOUCH, pt_down);
+	input_report_key(dev, BTN_TOOL_PEN, pt_down);
+	input_report_key(dev2, BTN_TOUCH, gs_down);
+	input_report_key(dev2, BTN_TOOL_FINGER, gs_down);
+
+	input_report_abs(dev2, ABS_PRESSURE, z);
+
+	if (psmouse->packet[0] == OLPC_PKT_PT && pt_down) {
+		input_report_abs(dev, ABS_X, x);
+		input_report_abs(dev, ABS_Y, y);
+	} else if (psmouse->packet[0] == OLPC_PKT_GS && gs_down) {
+		input_report_abs(dev2, ABS_X, x);
+		input_report_abs(dev2, ABS_Y, y);
+	}
+
+	input_sync(dev);
+	input_sync(dev2);
+
+	if (priv->pending_mode == OLPC_GS &&
+			psmouse->packet[0] == OLPC_PKT_PT && pt_down) {
+		priv->pending_mode = 0;
+		cancel_delayed_work(&priv->mode_switch);
+	}
+
+	if (priv->i->flags & (OLPC_PT|OLPC_GS)) {
+		int pending = 0;
+		if (psmouse->packet[0] == OLPC_PKT_PT && !pt_down)
+			pending = OLPC_GS;
+		else if (psmouse->packet[0] == OLPC_PKT_GS && pt_down)
+			pending = OLPC_PT;
+
+		if (priv->current_mode == pending) {
+			priv->pending_mode = 0;
+			pending = priv->current_mode;
+		}
+		else if (priv->pending_mode != pending) {
+			priv->pending_mode = pending;
+			if (tpdebug)
+				printk(KERN_WARNING "Scheduling mode switch to %s.\n",
+						pending == OLPC_GS ? "GS" : "PT");
+
+			/*
+			 * Apply a de-bounce when switching from PT to GS, to allow for
+			 * spurious PT-up packets.
+			 */
+			if (priv->pending_mode == OLPC_GS)
+				queue_delayed_work(kpsmoused_wq, &priv->mode_switch, msecs_to_jiffies(50));
+			else
+				queue_delayed_work(kpsmoused_wq, &priv->mode_switch, 0);
+		}
+	}
+}
+
+static psmouse_ret_t olpc_process_byte(struct psmouse *psmouse)
+{
+	psmouse_ret_t ret = PSMOUSE_BAD_DATA;
+
+	if (psmouse->packet[0] != OLPC_PKT_PT &&
+	    psmouse->packet[0] != OLPC_PKT_GS)
+		goto out;
+
+	/* Bytes 2 - 6 should have 0 in the highest bit */
+	if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= 6 &&
+			(psmouse->packet[psmouse->pktcnt - 1] & 0x80))
+		goto out;
+
+	if (psmouse->pktcnt == 6) {
+		olpc_process_packet_gspt(psmouse);
+		ret = PSMOUSE_FULL_PACKET;
+		goto out;
+	}
+
+	ret = PSMOUSE_GOOD_DATA;
+out:
+	if (ret != PSMOUSE_GOOD_DATA && ret != PSMOUSE_FULL_PACKET)
+		printk(KERN_DEBUG "%s: (%d) %02x %02x %02x %02x %02x %02x\n",
+		       __FUNCTION__, psmouse->pktcnt, psmouse->packet[0],
+			   psmouse->packet[1], psmouse->packet[2],
+			   psmouse->packet[3], psmouse->packet[4],
+		       psmouse->packet[5]);
+	return ret;
+}
+
+static struct olpc_model_info *olpc_get_model(struct psmouse *psmouse)
+{
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
+	unsigned char param[4];
+	int i;
+
+	/*
+	 * Now try "E7 report". Allowed responses are in
+	 * olpc_model_data[].signature
+	 */
+	if (ps2_command(ps2dev,  NULL, PSMOUSE_CMD_SETSCALE21) ||
+	    ps2_command(ps2dev,  NULL, PSMOUSE_CMD_SETSCALE21) ||
+	    ps2_command(ps2dev,  NULL, PSMOUSE_CMD_SETSCALE21))
+		return NULL;
+
+	param[0] = param[1] = param[2] = 0xff;
+	if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
+		return NULL;
+
+	pr_debug("olpc.c(%d): E7 report: %2.2x %2.2x %2.2x",
+		__LINE__, param[0], param[1], param[2]);
+
+	for (i = 0; i < ARRAY_SIZE(olpc_model_data); i++) {
+		if (!memcmp(param, olpc_model_data[i].signature,
+				sizeof(olpc_model_data[i].signature))) {
+			printk(KERN_INFO __FILE__ ": OLPC touchpad revision 0x%x.\n", param[2]);
+			return olpc_model_data + i;
+		}
+	}
+
+	/* 
+	 * ALPS creates new IDs pretty frequently; rather than listing them
+	 * all, just assume they support the defaults.  We've set aside the
+	 * first entry of olpc_model_data as the catch-all.
+	 */
+	if (!memcmp(param, olpc_model_data[0].signature, 2)) {
+		printk(KERN_INFO __FILE__ ": unknown ALPS revision %x, assuming default flags.\n", param[2]);
+		return &olpc_model_data[0];
+	}
+
+	return NULL;
+}
+
+static int olpc_find_mode(struct psmouse *psmouse)
+{
+	struct olpc_data *priv = psmouse->private;
+	int mode = priv->i->flags;
+
+	if (mode & OLPC_GS)
+		mode = OLPC_GS;
+	else if (mode & OLPC_PT)
+		mode = OLPC_PT;
+	else
+		mode = -1;
+
+	return mode;
+}
+
+/*
+ * Touchpad should be disabled before calling this!
+ */
+static int olpc_new_mode(struct psmouse *psmouse, int mode)
+{
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
+	struct olpc_data *priv = psmouse->private;
+	unsigned char param;
+	int ret;
+
+	if (tpdebug)
+		printk(KERN_WARNING __FILE__ ": Switching to %d. [%lu]\n", mode, jiffies);
+
+	if ((ret = ps2_command(ps2dev, &param, 0x01F2)))
+		goto failed;
+	if ((ret = ps2_command(ps2dev, &param, 0x01F2)))
+		goto failed;
+	if ((ret = ps2_command(ps2dev, &param, 0x01F2)))
+		goto failed;
+
+	switch (mode) {
+	default:
+		printk(KERN_WARNING __FILE__ ": Invalid mode %d. Defaulting to OLPC_GS.\n", mode);
+	case OLPC_GS:
+		ret = ps2_command(ps2dev, NULL, 0xE6);
+		break;
+	case OLPC_PT:
+		ret = ps2_command(ps2dev, NULL, 0xE7);
+		break;
+	}
+	if (ret)
+		goto failed;
+
+	/* XXX: This is a bit hacky, make sure this isn't screwing stuff up. */
+	psmouse->pktcnt = psmouse->out_of_sync = 0;
+	psmouse->last = jiffies;
+	psmouse->state = PSMOUSE_ACTIVATED;
+
+	if ((ret = ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)))
+		goto failed;
+
+	priv->current_mode = mode;
+	priv->pending_mode = 0;
+	if (tpdebug)
+		printk(KERN_WARNING __FILE__ ": Switched to mode %d successful.\n", mode);
+
+failed:
+	if (ret)
+		printk(KERN_WARNING __FILE__ ": Mode switch to %d failed! (%d) [%lu]\n", mode, ret, jiffies);
+	return ret;
+}
+
+static int olpc_absolute_mode(struct psmouse *psmouse, int mode)
+{
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
+
+	/* Switch to 'Advanced mode.', four disables in a row. */
+	if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
+			ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
+			ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
+			ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE))
+		return -1;
+	
+	return olpc_new_mode(psmouse, mode);
+}
+
+/*
+ * olpc_poll() - poll the touchpad for current motion packet.
+ * Used in resync.
+ * Note: We can't poll, so always return failure.
+ */
+static int olpc_poll(struct psmouse *psmouse)
+{
+	return -1;
+}
+
+static int olpc_reconnect(struct psmouse *psmouse)
+{
+	struct olpc_data *priv = psmouse->private;
+	int mode;
+
+	if (olpc_rev_after(OLPC_REV_B2))
+		if (psmouse->ps2dev.serio->dev.power.power_state.event != PM_EVENT_ON)
+			return 0;
+
+	psmouse_reset(psmouse);
+
+	if (!(priv->i = olpc_get_model(psmouse)))
+		return -1;
+
+	mode = olpc_find_mode(psmouse);
+	if (mode < 0)
+		return -1;
+
+	if (olpc_absolute_mode(psmouse, mode)) {
+		printk(KERN_ERR __FILE__ ": Failed to reenable absolute mode.\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+static void olpc_disconnect(struct psmouse *psmouse)
+{
+	struct olpc_data *priv = psmouse->private;
+
+	psmouse_reset(psmouse);
+	input_unregister_device(priv->dev2);
+	kfree(priv);
+}
+
+static void olpc_mode_switch(struct work_struct *w)
+{
+	struct delayed_work *work = container_of(w, struct delayed_work, work);
+	struct olpc_data *priv = container_of(work, struct olpc_data, mode_switch);
+	struct psmouse *psmouse = priv->psmouse;
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
+	int pending_mode, ret;
+
+	if (priv->pending_mode == priv->current_mode) {
+		priv->pending_mode = 0;
+		printk (KERN_DEBUG __FILE__ ": In switch_mode, no target mode.\n");
+		return;
+	}
+
+	if (tpdebug)
+		printk(KERN_WARNING __FILE__ ": Disable for switch to %d. [%lu]\n", priv->pending_mode, jiffies);
+
+	/* XXX: This is a bit hacky, make sure this isn't screwing stuff up. */
+	psmouse->state = PSMOUSE_INITIALIZING;
+
+	ret = ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE);
+	if (ret) {
+		/* XXX: if this ever fails, we need to do a full reset! */
+		printk(KERN_WARNING __FILE__ ": Disable failed for switch to %d. (%d) [%lu]\n", priv->pending_mode, ret, jiffies);
+		return;
+	}
+
+	/*
+	 * ALPS tells us that it may take up to 20msec for the disable to
+	 * take effect; however, ps2_command() will wait up to 200msec for
+	 * the ACK to come back (and I'm assuming that by the time the
+	 * hardware sends back its ACK, it has stopped sending bytes).
+	 */
+	pending_mode = priv->pending_mode;
+
+	if (olpc_new_mode(psmouse, priv->pending_mode))
+		goto bad;
+
+	/*
+	 * Deal with a potential race condition.
+	 *
+	 * If there is a brief tap of a stylus or a fingernail that
+	 * triggers a mode switch to PT mode, and the stylus/fingernail is
+	 * lifted after the DISABLE above, but before we reenable in the new mode,
+	 * then we can get stuck in PT mode.
+	 */
+	if (pending_mode == OLPC_PT) {
+		priv->pending_mode = OLPC_GS;
+		queue_delayed_work(kpsmoused_wq, &priv->mode_switch, msecs_to_jiffies(50));
+	}
+
+	return;
+
+bad:
+	printk(KERN_WARNING __FILE__ ": Failure to switch modes, resetting device...\n");
+	olpc_reconnect(psmouse);
+}
+
+int olpc_init(struct psmouse *psmouse)
+{
+	struct olpc_data *priv;
+	struct input_dev *dev = psmouse->dev;
+	struct input_dev *dev2;
+	int mode;
+
+	priv = kzalloc(sizeof(struct olpc_data), GFP_KERNEL);
+	dev2 = input_allocate_device();
+	if (!priv || !dev2)
+		goto init_fail;
+
+	psmouse->private = priv;
+	priv->dev2 = dev2;
+	priv->psmouse = psmouse;
+
+	psmouse_reset(psmouse);
+	if (!(priv->i = olpc_get_model(psmouse)))
+		goto init_fail;
+
+	mode = olpc_find_mode(psmouse);
+	if (mode < 0) {
+		printk(KERN_ERR __FILE__ ": Failed to identify proper mode\n");
+		goto init_fail;
+	}
+
+	if (olpc_absolute_mode(psmouse, mode)) {
+		printk(KERN_ERR __FILE__ ": Failed to enable absolute mode\n");
+		goto init_fail;
+	}
+
+	/*
+	 * Unset some of the default bits for things we don't have.
+	 */
+	dev->evbit[LONG(EV_REL)] &= ~BIT(EV_REL);
+	dev->relbit[LONG(REL_X)] &= ~(BIT(REL_X) | BIT(REL_Y));
+	dev->keybit[LONG(BTN_MIDDLE)] &= ~BIT(BTN_MIDDLE);
+
+	dev->evbit[LONG(EV_KEY)] |= BIT(EV_KEY);
+	dev->keybit[LONG(BTN_TOUCH)] |= BIT(BTN_TOUCH);
+	dev->keybit[LONG(BTN_TOOL_PEN)] |= BIT(BTN_TOOL_PEN);
+	dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT);
+
+	dev->evbit[LONG(EV_ABS)] |= BIT(EV_ABS);
+	input_set_abs_params(dev, ABS_X, 2, 1000, 0, 0);
+	input_set_abs_params(dev, ABS_Y, 0, 717, 0, 0);
+
+	snprintf(priv->phys, sizeof(priv->phys),
+		"%s/input1", psmouse->ps2dev.serio->phys);
+	dev2->phys = priv->phys;
+	dev2->name = "OLPC ALPS GlideSensor";
+	dev2->id.bustype = BUS_I8042;
+	dev2->id.vendor  = 0x0002;
+	dev2->id.product = PSMOUSE_OLPC;
+	dev2->id.version = 0x0000;
+
+	dev2->evbit[LONG(EV_KEY)] |= BIT(EV_KEY);
+	dev2->keybit[LONG(BTN_TOUCH)] |= BIT(BTN_TOUCH);
+	dev2->keybit[LONG(BTN_TOOL_FINGER)] |= BIT(BTN_TOOL_FINGER);
+	dev2->keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT);
+
+	dev2->evbit[LONG(EV_ABS)] |= BIT(EV_ABS);
+	input_set_abs_params(dev2, ABS_X, 350, 512, 0, 0);
+	input_set_abs_params(dev2, ABS_Y, 70, 325, 0, 0);
+	input_set_abs_params(dev2, ABS_PRESSURE, 0, 63, 0, 0);
+
+	if (input_register_device(dev2)) {
+		printk(KERN_ERR __FILE__ ": Failed to register GlideSensor\n");
+		goto init_fail;
+	}
+
+	psmouse->protocol_handler = olpc_process_byte;
+	psmouse->poll = olpc_poll;
+	psmouse->disconnect = olpc_disconnect;
+	psmouse->reconnect = olpc_reconnect;
+	psmouse->pktsize = 6;
+
+	/* Disable the idle resync. */
+	psmouse->resync_time = 0;
+	/* Reset after a lot of bad bytes. */
+	psmouse->resetafter = 1024;
+
+	INIT_DELAYED_WORK(&priv->mode_switch, olpc_mode_switch);
+
+	return 0;
+
+init_fail:
+	input_free_device(dev2);
+	kfree(priv);
+	return -1;
+}
+
+int olpc_detect(struct psmouse *psmouse, int set_properties)
+{
+	if (!olpc_get_model(psmouse))
+		return -1;
+
+	if (set_properties) {
+		psmouse->vendor = "ALPS";
+		psmouse->name = "PenTablet";
+		psmouse->model = 0;
+	}
+	return 0;
+}
+
diff --git a/target/linux/olpc/files/drivers/input/mouse/olpc.h b/target/linux/olpc/files/drivers/input/mouse/olpc.h
new file mode 100644
index 000000000..426f8b4ea
--- /dev/null
+++ b/target/linux/olpc/files/drivers/input/mouse/olpc.h
@@ -0,0 +1,49 @@
+/*
+ * OLPC touchpad PS/2 mouse driver
+ *
+ * Copyright (c) 2006 One Laptop Per Child, inc.
+ *
+ * This driver is partly based on the ALPS driver.
+ * Copyright (c) 2003 Peter Osterlund <petero2@telia.com>
+ * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
+ *
+ * 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.
+ */
+
+#ifndef _OLPC_H
+#define _OLPC_H
+
+struct olpc_model_info {
+	unsigned char signature[3];
+	unsigned char flags;
+};
+
+struct olpc_data {
+	struct input_dev *dev2;		/* Relative device */
+	struct psmouse *psmouse;
+	char name[32];			/* Name */
+	char phys[32];			/* Phys */
+	struct olpc_model_info *i; /* Info */
+	int pending_mode;
+	int current_mode;
+	s64 late;
+	struct delayed_work mode_switch;
+};
+
+#ifdef CONFIG_MOUSE_PS2_OLPC
+int olpc_detect(struct psmouse *psmouse, int set_properties);
+int olpc_init(struct psmouse *psmouse);
+#else
+inline int olpc_detect(struct psmouse *psmouse, int set_properties)
+{
+	return -ENOSYS;
+}
+inline int olpc_init(struct psmouse *psmouse)
+{
+	return -ENOSYS;
+}
+#endif
+
+#endif