/*
- * Apple USB Touchpad (for post-February 2005 PowerBooks) driver
+ * Apple USB Touchpad (for post-February 2005 PowerBooks and MacBooks) driver
*
* Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
* Copyright (C) 2005 Johannes Berg (johannes@sipsolutions.net)
* Copyright (C) 2005 Frank Arnold (frank@scirocco-5v-turbo.de)
* Copyright (C) 2005 Peter Osterlund (petero2@telia.com)
* Copyright (C) 2005 Michael Hanselmann (linux-kernel@hansmi.ch)
+ * Copyright (C) 2006 Nicolas Boichat (nicolas@boichat.ch)
*
* Thanks to Alex Harper <basilisk@foobox.net> for his inputs.
*
*
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
-#include <linux/usb.h>
-#include <linux/input.h>
-#include <linux/usb_input.h>
+#include <linux/usb/input.h>
/* Apple has powerbooks which have the keyboard with different Product IDs */
#define APPLE_VENDOR_ID 0x05AC
/* These names come from Info.plist in AppleUSBTrackpad.kext */
-#define GEYSER_ANSI_PRODUCT_ID 0x0214
-#define GEYSER_ISO_PRODUCT_ID 0x0215
-#define GEYSER_JIS_PRODUCT_ID 0x0216
+#define FOUNTAIN_ANSI_PRODUCT_ID 0x020E
+#define FOUNTAIN_ISO_PRODUCT_ID 0x020F
+
+#define FOUNTAIN_TP_ONLY_PRODUCT_ID 0x030A
+
+#define GEYSER1_TP_ONLY_PRODUCT_ID 0x030B
+
+#define GEYSER_ANSI_PRODUCT_ID 0x0214
+#define GEYSER_ISO_PRODUCT_ID 0x0215
+#define GEYSER_JIS_PRODUCT_ID 0x0216
+
+/* MacBook devices */
+#define GEYSER3_ANSI_PRODUCT_ID 0x0217
+#define GEYSER3_ISO_PRODUCT_ID 0x0218
+#define GEYSER3_JIS_PRODUCT_ID 0x0219
+
+/*
+ * Geyser IV: same as Geyser III according to Info.plist in AppleUSBTrackpad.kext
+ * -> same IOClass (AppleUSBGrIIITrackpad), same acceleration tables
+ */
+#define GEYSER4_ANSI_PRODUCT_ID 0x021A
+#define GEYSER4_ISO_PRODUCT_ID 0x021B
+#define GEYSER4_JIS_PRODUCT_ID 0x021C
#define ATP_DEVICE(prod) \
.match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
/* table of devices that work with this driver */
static struct usb_device_id atp_table [] = {
- { ATP_DEVICE(0x020E) },
- { ATP_DEVICE(0x020F) },
- { ATP_DEVICE(0x030A) },
- { ATP_DEVICE(0x030B) },
+ { ATP_DEVICE(FOUNTAIN_ANSI_PRODUCT_ID) },
+ { ATP_DEVICE(FOUNTAIN_ISO_PRODUCT_ID) },
+ { ATP_DEVICE(FOUNTAIN_TP_ONLY_PRODUCT_ID) },
+ { ATP_DEVICE(GEYSER1_TP_ONLY_PRODUCT_ID) },
/* PowerBooks Oct 2005 */
{ ATP_DEVICE(GEYSER_ANSI_PRODUCT_ID) },
{ ATP_DEVICE(GEYSER_ISO_PRODUCT_ID) },
{ ATP_DEVICE(GEYSER_JIS_PRODUCT_ID) },
+ /* Core Duo MacBook & MacBook Pro */
+ { ATP_DEVICE(GEYSER3_ANSI_PRODUCT_ID) },
+ { ATP_DEVICE(GEYSER3_ISO_PRODUCT_ID) },
+ { ATP_DEVICE(GEYSER3_JIS_PRODUCT_ID) },
+
+ /* Core2 Duo MacBook & MacBook Pro */
+ { ATP_DEVICE(GEYSER4_ANSI_PRODUCT_ID) },
+ { ATP_DEVICE(GEYSER4_ISO_PRODUCT_ID) },
+ { ATP_DEVICE(GEYSER4_JIS_PRODUCT_ID) },
+
/* Terminating entry */
{ }
};
*/
#define ATP_THRESHOLD 5
+/* MacBook Pro (Geyser 3 & 4) initialization constants */
+#define ATP_GEYSER3_MODE_READ_REQUEST_ID 1
+#define ATP_GEYSER3_MODE_WRITE_REQUEST_ID 9
+#define ATP_GEYSER3_MODE_REQUEST_VALUE 0x300
+#define ATP_GEYSER3_MODE_REQUEST_INDEX 0
+#define ATP_GEYSER3_MODE_VENDOR_VALUE 0x04
+
/* Structure to hold all of our device specific stuff */
struct atp {
char phys[64];
MODULE_DESCRIPTION("Apple PowerBooks USB touchpad driver");
MODULE_LICENSE("GPL");
+/*
+ * Make the threshold a module parameter
+ */
+static int threshold = ATP_THRESHOLD;
+module_param(threshold, int, 0644);
+MODULE_PARM_DESC(threshold, "Discards any change in data from a sensor (trackpad has hundreds of these sensors) less than this value");
+
static int debug = 1;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Activate debugging output");
/* Checks if the device a Geyser 2 (ANSI, ISO, JIS) */
static inline int atp_is_geyser_2(struct atp *dev)
{
- int16_t productId = le16_to_cpu(dev->udev->descriptor.idProduct);
+ u16 productId = le16_to_cpu(dev->udev->descriptor.idProduct);
return (productId == GEYSER_ANSI_PRODUCT_ID) ||
(productId == GEYSER_ISO_PRODUCT_ID) ||
(productId == GEYSER_JIS_PRODUCT_ID);
}
+static inline int atp_is_geyser_3(struct atp *dev)
+{
+ u16 productId = le16_to_cpu(dev->udev->descriptor.idProduct);
+
+ return (productId == GEYSER3_ANSI_PRODUCT_ID) ||
+ (productId == GEYSER3_ISO_PRODUCT_ID) ||
+ (productId == GEYSER3_JIS_PRODUCT_ID) ||
+ (productId == GEYSER4_ANSI_PRODUCT_ID) ||
+ (productId == GEYSER4_ISO_PRODUCT_ID) ||
+ (productId == GEYSER4_JIS_PRODUCT_ID);
+}
+
static int atp_calculate_abs(int *xy_sensors, int nb_sensors, int fact,
int *z, int *fingers)
{
int i;
/* values to calculate mean */
int pcum = 0, psum = 0;
+ int is_increasing = 0;
*fingers = 0;
for (i = 0; i < nb_sensors; i++) {
- if (xy_sensors[i] < ATP_THRESHOLD)
+ if (xy_sensors[i] < threshold) {
+ if (is_increasing)
+ is_increasing = 0;
+
continue;
- if ((i - 1 < 0) || (xy_sensors[i - 1] < ATP_THRESHOLD))
+ }
+
+ /*
+ * Makes the finger detection more versatile. For example,
+ * two fingers with no gap will be detected. Also, my
+ * tests show it less likely to have intermittent loss
+ * of multiple finger readings while moving around (scrolling).
+ *
+ * Changes the multiple finger detection to counting humps on
+ * sensors (transitions from nonincreasing to increasing)
+ * instead of counting transitions from low sensors (no
+ * finger reading) to high sensors (finger above
+ * sensor)
+ *
+ * - Jason Parekh <jasonparekh@gmail.com>
+ */
+ if (i < 1 || (!is_increasing && xy_sensors[i - 1] < xy_sensors[i])) {
(*fingers)++;
- pcum += xy_sensors[i] * i;
- psum += xy_sensors[i];
+ is_increasing = 1;
+ } else if (i > 0 && xy_sensors[i - 1] >= xy_sensors[i]) {
+ is_increasing = 0;
+ }
+
+ /*
+ * Subtracts threshold so a high sensor that just passes the threshold
+ * won't skew the calculated absolute coordinate. Fixes an issue
+ * where slowly moving the mouse would occassionaly jump a number of
+ * pixels (let me restate--slowly moving the mouse makes this issue
+ * most apparent).
+ */
+ pcum += (xy_sensors[i] - threshold) * i;
+ psum += (xy_sensors[i] - threshold);
}
if (psum > 0) {
input_report_key(input, BTN_TOOL_TRIPLETAP, fingers > 2);
}
-static void atp_complete(struct urb* urb, struct pt_regs* regs)
+static void atp_complete(struct urb* urb)
{
int x, y, x_z, y_z, x_f, y_f;
int retval, i, j;
/* drop incomplete datasets */
if (dev->urb->actual_length != dev->datalen) {
- dprintk("appletouch: incomplete data package.\n");
+ dprintk("appletouch: incomplete data package"
+ " (first byte: %d, length: %d).\n",
+ dev->data[0], dev->urb->actual_length);
goto exit;
}
/* reorder the sensors values */
- if (atp_is_geyser_2(dev)) {
+ if (atp_is_geyser_3(dev)) {
+ memset(dev->xy_cur, 0, sizeof(dev->xy_cur));
+
+ /*
+ * The values are laid out like this:
+ * -, Y1, Y2, -, Y3, Y4, -, ..., -, X1, X2, -, X3, X4, ...
+ * '-' is an unused value.
+ */
+
+ /* read X values */
+ for (i = 0, j = 19; i < 20; i += 2, j += 3) {
+ dev->xy_cur[i] = dev->data[j + 1];
+ dev->xy_cur[i + 1] = dev->data[j + 2];
+ }
+ /* read Y values */
+ for (i = 0, j = 1; i < 9; i += 2, j += 3) {
+ dev->xy_cur[ATP_XSENSORS + i] = dev->data[j + 1];
+ dev->xy_cur[ATP_XSENSORS + i + 1] = dev->data[j + 2];
+ }
+ } else if (atp_is_geyser_2(dev)) {
memset(dev->xy_cur, 0, sizeof(dev->xy_cur));
/*
dev->x_old = dev->y_old = -1;
memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old));
+ if (atp_is_geyser_3(dev)) /* No 17" Macbooks (yet) */
+ goto exit;
+
/* 17" Powerbooks have extra X sensors */
for (i = (atp_is_geyser_2(dev)?15:16); i < ATP_XSENSORS; i++) {
if (!dev->xy_cur[i]) continue;
iface_desc = iface->cur_altsetting;
for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
endpoint = &iface_desc->endpoint[i].desc;
- if (!int_in_endpointAddr &&
- (endpoint->bEndpointAddress & USB_DIR_IN) &&
- ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
- == USB_ENDPOINT_XFER_INT)) {
+ if (!int_in_endpointAddr && usb_endpoint_is_int_in(endpoint)) {
/* we found an interrupt in endpoint */
int_in_endpointAddr = endpoint->bEndpointAddress;
break;
dev->udev = udev;
dev->input = input_dev;
dev->overflowwarn = 0;
- dev->datalen = (atp_is_geyser_2(dev)?64:81);
+ if (atp_is_geyser_3(dev))
+ dev->datalen = 64;
+ else if (atp_is_geyser_2(dev))
+ dev->datalen = 64;
+ else
+ dev->datalen = 81;
+
+ if (atp_is_geyser_3(dev)) {
+ /*
+ * By default Geyser 3 device sends standard USB HID mouse
+ * packets (Report ID 2). This code changes device mode, so it
+ * sends raw sensor reports (Report ID 5).
+ */
+ char data[8];
+ int size;
+
+ size = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+ ATP_GEYSER3_MODE_READ_REQUEST_ID,
+ USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ ATP_GEYSER3_MODE_REQUEST_VALUE,
+ ATP_GEYSER3_MODE_REQUEST_INDEX, &data, 8, 5000);
+
+ if (size != 8) {
+ err("Could not do mode read request from device"
+ " (Geyser 3 mode)");
+ goto err_free_devs;
+ }
+
+ /* Apply the mode switch */
+ data[0] = ATP_GEYSER3_MODE_VENDOR_VALUE;
+
+ size = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+ ATP_GEYSER3_MODE_WRITE_REQUEST_ID,
+ USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ ATP_GEYSER3_MODE_REQUEST_VALUE,
+ ATP_GEYSER3_MODE_REQUEST_INDEX, &data, 8, 5000);
+
+ if (size != 8) {
+ err("Could not do mode write request to device"
+ " (Geyser 3 mode)");
+ goto err_free_devs;
+ }
+ printk("appletouch Geyser 3 inited.\n");
+ }
dev->urb = usb_alloc_urb(0, GFP_KERNEL);
if (!dev->urb) {
set_bit(EV_ABS, input_dev->evbit);
- if (atp_is_geyser_2(dev)) {
+ if (atp_is_geyser_3(dev)) {
+ /*
+ * MacBook have 20 X sensors, 10 Y sensors
+ */
+ input_set_abs_params(input_dev, ABS_X, 0,
+ ((20 - 1) * ATP_XFACT) - 1, ATP_FUZZ, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0,
+ ((10 - 1) * ATP_YFACT) - 1, ATP_FUZZ, 0);
+ } else if (atp_is_geyser_2(dev)) {
/*
* Oct 2005 15" PowerBooks have 15 X sensors, 17" are detected
* later.
if (dev) {
usb_kill_urb(dev->urb);
input_unregister_device(dev->input);
- usb_free_urb(dev->urb);
usb_buffer_free(dev->udev, dev->datalen,
dev->data, dev->urb->transfer_dma);
+ usb_free_urb(dev->urb);
kfree(dev);
}
printk(KERN_INFO "input: appletouch disconnected\n");
git://git.onelab.eu / linux-2.6.git / blobdiff