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Input: appletouch - add support for Geyser 2

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This patch adds support for the Geyser 2 touchpads used on post Oct 2005
Apple PowerBooks to the appletouch driver.

Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch>
Acked-by: Rene Nussbaumer <linux-kernel@killerfox.forkbomb.ch>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Michael Hanselmann
2005-12-21 00:50:23 -05:00
committed by Dmitry Torokhov
parent 041387d984
commit e1e02c9f76
2 changed files with 111 additions and 37 deletions
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143
drivers/usb/input/appletouch.c
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@@ -6,6 +6,7 @@
* Copyright (C) 2005 Stelian Pop (stelian@popies.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)
*
* Thanks to Alex Harper <basilisk@foobox.net> for his inputs.
*
@@ -38,6 +39,11 @@
/* 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 ATP_DEVICE(prod) \
.match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
USB_DEVICE_ID_MATCH_INT_CLASS | \
@@ -53,13 +59,17 @@ static struct usb_device_id atp_table [] = {
{ ATP_DEVICE(0x020F) },
{ ATP_DEVICE(0x030A) },
{ ATP_DEVICE(0x030B) },
{ } /* Terminating entry */
/* PowerBooks Oct 2005 */
{ ATP_DEVICE(GEYSER_ANSI_PRODUCT_ID) },
{ ATP_DEVICE(GEYSER_ISO_PRODUCT_ID) },
{ ATP_DEVICE(GEYSER_JIS_PRODUCT_ID) },
/* Terminating entry */
{ }
};
MODULE_DEVICE_TABLE (usb, atp_table);
/* size of a USB urb transfer */
#define ATP_DATASIZE 81
/*
* number of sensors. Note that only 16 instead of 26 X (horizontal)
* sensors exist on 12" and 15" PowerBooks. All models have 16 Y
@@ -108,6 +118,8 @@ struct atp {
signed char xy_old[ATP_XSENSORS + ATP_YSENSORS];
/* accumulated sensors */
int xy_acc[ATP_XSENSORS + ATP_YSENSORS];
int overflowwarn; /* overflow warning printed? */
int datalen; /* size of an USB urb transfer */
};
#define dbg_dump(msg, tab) \
@@ -124,7 +136,7 @@ struct atp {
if (debug) printk(format, ##a); \
} while (0)
MODULE_AUTHOR("Johannes Berg, Stelian Pop, Frank Arnold");
MODULE_AUTHOR("Johannes Berg, Stelian Pop, Frank Arnold, Michael Hanselmann");
MODULE_DESCRIPTION("Apple PowerBooks USB touchpad driver");
MODULE_LICENSE("GPL");
@@ -132,6 +144,16 @@ 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);
return (productId == GEYSER_ANSI_PRODUCT_ID) ||
(productId == GEYSER_ISO_PRODUCT_ID) ||
(productId == GEYSER_JIS_PRODUCT_ID);
}
static int atp_calculate_abs(int *xy_sensors, int nb_sensors, int fact,
int *z, int *fingers)
{
@@ -168,13 +190,20 @@ static inline void atp_report_fingers(struct input_dev *input, int fingers)
static void atp_complete(struct urb* urb, struct pt_regs* regs)
{
int x, y, x_z, y_z, x_f, y_f;
int retval, i;
int retval, i, j;
struct atp *dev = urb->context;
switch (urb->status) {
case 0:
/* success */
break;
case -EOVERFLOW:
if(!dev->overflowwarn) {
printk("appletouch: OVERFLOW with data "
"length %d, actual length is %d\n",
dev->datalen, dev->urb->actual_length);
dev->overflowwarn = 1;
}
case -ECONNRESET:
case -ENOENT:
case -ESHUTDOWN:
@@ -189,23 +218,45 @@ static void atp_complete(struct urb* urb, struct pt_regs* regs)
}
/* drop incomplete datasets */
if (dev->urb->actual_length != ATP_DATASIZE) {
if (dev->urb->actual_length != dev->datalen) {
dprintk("appletouch: incomplete data package.\n");
goto exit;
}
/* reorder the sensors values */
for (i = 0; i < 8; i++) {
/* X values */
dev->xy_cur[i ] = dev->data[5 * i + 2];
dev->xy_cur[i + 8] = dev->data[5 * i + 4];
dev->xy_cur[i + 16] = dev->data[5 * i + 42];
if (i < 2)
dev->xy_cur[i + 24] = dev->data[5 * i + 44];
if (atp_is_geyser_2(dev)) {
memset(dev->xy_cur, 0, sizeof(dev->xy_cur));
/* Y values */
dev->xy_cur[i + 26] = dev->data[5 * i + 1];
dev->xy_cur[i + 34] = dev->data[5 * i + 3];
/*
* 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];
dev->xy_cur[i + 1] = dev->data[j + 1];
}
/* read Y values */
for (i = 0, j = 1; i < 9; i += 2, j += 3) {
dev->xy_cur[ATP_XSENSORS + i] = dev->data[j];
dev->xy_cur[ATP_XSENSORS + i + 1] = dev->data[j + 1];
}
} else {
for (i = 0; i < 8; i++) {
/* X values */
dev->xy_cur[i ] = dev->data[5 * i + 2];
dev->xy_cur[i + 8] = dev->data[5 * i + 4];
dev->xy_cur[i + 16] = dev->data[5 * i + 42];
if (i < 2)
dev->xy_cur[i + 24] = dev->data[5 * i + 44];
/* Y values */
dev->xy_cur[i + 26] = dev->data[5 * i + 1];
dev->xy_cur[i + 34] = dev->data[5 * i + 3];
}
}
dbg_dump("sample", dev->xy_cur);
@@ -216,16 +267,24 @@ 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));
/* 17" Powerbooks have 10 extra X sensors */
for (i = 16; i < ATP_XSENSORS; i++)
if (dev->xy_cur[i]) {
printk("appletouch: 17\" model detected.\n");
/* 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;
printk("appletouch: 17\" model detected.\n");
if(atp_is_geyser_2(dev))
input_set_abs_params(dev->input, ABS_X, 0,
(20 - 1) *
ATP_XFACT - 1,
ATP_FUZZ, 0);
else
input_set_abs_params(dev->input, ABS_X, 0,
(ATP_XSENSORS - 1) *
ATP_XFACT - 1,
ATP_FUZZ, 0);
break;
}
break;
}
goto exit;
}
@@ -282,7 +341,8 @@ static void atp_complete(struct urb* urb, struct pt_regs* regs)
memset(dev->xy_acc, 0, sizeof(dev->xy_acc));
}
input_report_key(dev->input, BTN_LEFT, !!dev->data[80]);
input_report_key(dev->input, BTN_LEFT,
!!dev->data[dev->datalen - 1]);
input_sync(dev->input);
@@ -353,6 +413,8 @@ 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);
dev->urb = usb_alloc_urb(0, GFP_KERNEL);
if (!dev->urb) {
@@ -360,7 +422,7 @@ static int atp_probe(struct usb_interface *iface, const struct usb_device_id *id
goto err_free_devs;
}
dev->data = usb_buffer_alloc(dev->udev, ATP_DATASIZE, GFP_KERNEL,
dev->data = usb_buffer_alloc(dev->udev, dev->datalen, GFP_KERNEL,
&dev->urb->transfer_dma);
if (!dev->data) {
retval = -ENOMEM;
@@ -369,7 +431,7 @@ static int atp_probe(struct usb_interface *iface, const struct usb_device_id *id
usb_fill_int_urb(dev->urb, udev,
usb_rcvintpipe(udev, int_in_endpointAddr),
dev->data, ATP_DATASIZE, atp_complete, dev, 1);
dev->data, dev->datalen, atp_complete, dev, 1);
usb_make_path(udev, dev->phys, sizeof(dev->phys));
strlcat(dev->phys, "/input0", sizeof(dev->phys));
@@ -385,14 +447,25 @@ static int atp_probe(struct usb_interface *iface, const struct usb_device_id *id
set_bit(EV_ABS, input_dev->evbit);
/*
* 12" and 15" Powerbooks only have 16 x sensors,
* 17" models are detected later.
*/
input_set_abs_params(input_dev, ABS_X, 0,
(16 - 1) * ATP_XFACT - 1, ATP_FUZZ, 0);
input_set_abs_params(input_dev, ABS_Y, 0,
(ATP_YSENSORS - 1) * ATP_YFACT - 1, ATP_FUZZ, 0);
if (atp_is_geyser_2(dev)) {
/*
* Oct 2005 15" PowerBooks have 15 X sensors, 17" are detected
* later.
*/
input_set_abs_params(input_dev, ABS_X, 0,
((15 - 1) * ATP_XFACT) - 1, ATP_FUZZ, 0);
input_set_abs_params(input_dev, ABS_Y, 0,
((9 - 1) * ATP_YFACT) - 1, ATP_FUZZ, 0);
} else {
/*
* 12" and 15" Powerbooks only have 16 x sensors,
* 17" models are detected later.
*/
input_set_abs_params(input_dev, ABS_X, 0,
(16 - 1) * ATP_XFACT - 1, ATP_FUZZ, 0);
input_set_abs_params(input_dev, ABS_Y, 0,
(ATP_YSENSORS - 1) * ATP_YFACT - 1, ATP_FUZZ, 0);
}
input_set_abs_params(input_dev, ABS_PRESSURE, 0, ATP_PRESSURE, 0, 0);
set_bit(EV_KEY, input_dev->evbit);
@@ -427,7 +500,7 @@ static void atp_disconnect(struct usb_interface *iface)
usb_kill_urb(dev->urb);
input_unregister_device(dev->input);
usb_free_urb(dev->urb);
usb_buffer_free(dev->udev, ATP_DATASIZE,
usb_buffer_free(dev->udev, dev->datalen,
dev->data, dev->urb->transfer_dma);
kfree(dev);
}