summaryrefslogtreecommitdiffstats
path: root/drivers/usb/input/appletouch.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/input/appletouch.c')
-rw-r--r--drivers/usb/input/appletouch.c113
1 files changed, 107 insertions, 6 deletions
diff --git a/drivers/usb/input/appletouch.c b/drivers/usb/input/appletouch.c
index c222ed13deab..4eff8d7a79d4 100644
--- a/drivers/usb/input/appletouch.c
+++ b/drivers/usb/input/appletouch.c
@@ -1,5 +1,5 @@
/*
- * 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)
@@ -7,6 +7,7 @@
* 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.
*
@@ -44,6 +45,11 @@
#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
+
#define ATP_DEVICE(prod) \
.match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
USB_DEVICE_ID_MATCH_INT_CLASS | \
@@ -65,6 +71,10 @@ static struct usb_device_id atp_table [] = {
{ ATP_DEVICE(GEYSER_ISO_PRODUCT_ID) },
{ ATP_DEVICE(GEYSER_JIS_PRODUCT_ID) },
+ { ATP_DEVICE(GEYSER3_ANSI_PRODUCT_ID) },
+ { ATP_DEVICE(GEYSER3_ISO_PRODUCT_ID) },
+ { ATP_DEVICE(GEYSER3_JIS_PRODUCT_ID) },
+
/* Terminating entry */
{ }
};
@@ -101,6 +111,13 @@ MODULE_DEVICE_TABLE (usb, atp_table);
*/
#define ATP_THRESHOLD 5
+/* MacBook Pro (Geyser 3) 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];
@@ -147,13 +164,22 @@ 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);
+}
+
static int atp_calculate_abs(int *xy_sensors, int nb_sensors, int fact,
int *z, int *fingers)
{
@@ -219,12 +245,33 @@ static void atp_complete(struct urb* urb, struct pt_regs* regs)
/* 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));
/*
@@ -267,6 +314,9 @@ static void atp_complete(struct urb* urb, struct pt_regs* regs)
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;
@@ -414,7 +464,50 @@ static int atp_probe(struct usb_interface *iface, const struct usb_device_id *id
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) {
@@ -447,7 +540,15 @@ static int atp_probe(struct usb_interface *iface, const struct usb_device_id *id
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.
OpenPOWER on IntegriCloud