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|
New appletouch driver.
From: Sven Anders <anders@anduras.de>
---
drivers/input/mouse/appletouch.c | 160 +++++++++++++++++++++++++++++---------
1 files changed, 121 insertions(+), 39 deletions(-)
diff --git a/drivers/input/mouse/appletouch.c b/drivers/input/mouse/appletouch.c
index dcd9a0d..5a3459c 100644
--- a/drivers/input/mouse/appletouch.c
+++ b/drivers/input/mouse/appletouch.c
@@ -8,6 +8,7 @@
* 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)
+ * Copyright (C) 2007-2008 Sven Anders (anders@anduras.de)
*
* Thanks to Alex Harper <basilisk@foobox.net> for his inputs.
*
@@ -38,16 +39,18 @@
#define APPLE_VENDOR_ID 0x05AC
/* These names come from Info.plist in AppleUSBTrackpad.kext */
+
+/* PowerBooks Feb 2005 / iBooks */
#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
+/* PowerBooks Oct 2005 */
+#define GEYSER2_ANSI_PRODUCT_ID 0x0214
+#define GEYSER2_ISO_PRODUCT_ID 0x0215
+#define GEYSER2_JIS_PRODUCT_ID 0x0216
/* MacBook devices */
#define GEYSER3_ANSI_PRODUCT_ID 0x0217
@@ -58,9 +61,14 @@
* 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 GEYSER4_ANSI_PRODUCT_ID 0x021A
+#define GEYSER4_ISO_PRODUCT_ID 0x021B
+#define GEYSER4_JIS_PRODUCT_ID 0x021C
+
+/* Macbook3,1 devices */
+#define GEYSER4_HF_ANSI_PRODUCT_ID 0x0229
+#define GEYSER4_HF_ISO_PRODUCT_ID 0x022A
+#define GEYSER4_HF_JIS_PRODUCT_ID 0x021B
/* Macbook3,1 devices */
#define GEYSER4_HF_ANSI_PRODUCT_ID 0x0229
@@ -78,15 +86,17 @@
/* table of devices that work with this driver */
static struct usb_device_id atp_table [] = {
+
+ /* PowerBooks Feb 2005, iBooks G4 */
{ 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) },
+ { ATP_DEVICE(GEYSER2_ANSI_PRODUCT_ID) },
+ { ATP_DEVICE(GEYSER2_ISO_PRODUCT_ID) },
+ { ATP_DEVICE(GEYSER2_JIS_PRODUCT_ID) },
/* Core Duo MacBook & MacBook Pro */
{ ATP_DEVICE(GEYSER3_ANSI_PRODUCT_ID) },
@@ -103,6 +113,11 @@ static struct usb_device_id atp_table [] = {
{ ATP_DEVICE(GEYSER4_HF_ISO_PRODUCT_ID) },
{ ATP_DEVICE(GEYSER4_HF_JIS_PRODUCT_ID) },
+ /* Core2 Duo MacBook3,1 */
+ { ATP_DEVICE(GEYSER4_HF_ANSI_PRODUCT_ID) },
+ { ATP_DEVICE(GEYSER4_HF_ISO_PRODUCT_ID) },
+ { ATP_DEVICE(GEYSER4_HF_JIS_PRODUCT_ID) },
+
/* Terminating entry */
{ }
};
@@ -146,12 +161,21 @@ MODULE_DEVICE_TABLE (usb, atp_table);
#define ATP_GEYSER_MODE_REQUEST_INDEX 0
#define ATP_GEYSER_MODE_VENDOR_VALUE 0x04
+/*
+ * Meaning of the status bits (only Geyser 3/4?)
+ */
+#define ATP_STATUS_BIT_BUTTON 0x01 /* The button was pressed */
+#define ATP_STATUS_BIT_UNKNOWN1 0x02 /* Unknown or unused */
+#define ATP_STATUS_BIT_BASE_UPDATE 0x04 /* Update of the base values (untouched pad) */
+#define ATP_STATUS_BIT_UNKNOWN2 0x08 /* Unknown or unused */
+#define ATP_STATUS_BIT_FROM_RESET 0x10 /* Reset previously performed */
+
/* Structure to hold all of our device specific stuff */
struct atp {
char phys[64];
struct usb_device * udev; /* usb device */
struct urb * urb; /* usb request block */
- signed char * data; /* transferred data */
+ u8 * data; /* transferred data */
struct input_dev * input; /* input dev */
unsigned char open; /* non-zero if opened */
unsigned char valid; /* are the sensors valid ? */
@@ -166,8 +190,8 @@ struct atp {
/* accumulated sensors */
int xy_acc[ATP_XSENSORS + ATP_YSENSORS];
int datalen; /* size of an USB urb transfer */
- int idlecount; /* number of empty packets */
- struct work_struct work;
+ int idle_counter; /* number of empty packets */
+ struct work_struct work; /* kernel workqueue entry (for re-init) */
};
#define dbg_dump(msg, tab) \
@@ -184,8 +208,12 @@ struct atp {
if (debug) printk(KERN_DEBUG format, ##a); \
} while (0)
-MODULE_AUTHOR("Johannes Berg, Stelian Pop, Frank Arnold, Michael Hanselmann");
-MODULE_DESCRIPTION("Apple PowerBooks USB touchpad driver");
+MODULE_AUTHOR("Johannes Berg");
+MODULE_AUTHOR("Stelian Pop");
+MODULE_AUTHOR("Frank Arnold");
+MODULE_AUTHOR("Michael Hanselmann");
+MODULE_AUTHOR("Sven Anders");
+MODULE_DESCRIPTION("Apple PowerBook and MacBook USB touchpad driver");
MODULE_LICENSE("GPL");
/*
@@ -195,7 +223,7 @@ 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;
+static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Activate debugging output");
@@ -213,12 +241,12 @@ static inline int atp_is_geyser_2(struct atp *dev)
{
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);
+ return (productId == GEYSER2_ANSI_PRODUCT_ID) ||
+ (productId == GEYSER2_ISO_PRODUCT_ID) ||
+ (productId == GEYSER2_JIS_PRODUCT_ID);
}
-static inline int atp_is_geyser_3(struct atp *dev)
+static inline int atp_is_geyser_3_4(struct atp *dev)
{
u16 productId = le16_to_cpu(dev->udev->descriptor.idProduct);
@@ -242,7 +270,7 @@ static int atp_geyser_init(struct usb_device *udev)
{
char data[8];
int size;
-
+
size = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
ATP_GEYSER_MODE_READ_REQUEST_ID,
USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
@@ -250,6 +278,13 @@ static int atp_geyser_init(struct usb_device *udev)
ATP_GEYSER_MODE_REQUEST_INDEX, &data, 8, 5000);
if (size != 8) {
+ if (debug)
+ {
+ int i;
+ printk("appletouch atp_geyser_init READ error\n");
+ for (i=0; i<8; i++)
+ printk("appletouch[%d]: %d\n", i, (int) data[i]);
+ }
err("Could not do mode read request from device"
" (Geyser Raw mode)");
return -EIO;
@@ -265,6 +300,13 @@ static int atp_geyser_init(struct usb_device *udev)
ATP_GEYSER_MODE_REQUEST_INDEX, &data, 8, 5000);
if (size != 8) {
+ if (debug)
+ {
+ int i;
+ printk("appletouch atp_geyser_init WRITE error\n");
+ for (i=0; i<8; i++)
+ printk("appletouch[%d]: %d\n", i, (int) data[i]);
+ }
err("Could not do mode write request to device"
" (Geyser Raw mode)");
return -EIO;
@@ -282,8 +324,7 @@ static void atp_reinit(struct work_struct *work)
struct usb_device *udev = dev->udev;
int retval;
- dev->idlecount = 0;
-
+ dprintk("appletouch: putting appletouch to sleep (reinit)\n");
atp_geyser_init(udev);
retval = usb_submit_urb(dev->urb, GFP_ATOMIC);
@@ -398,7 +439,7 @@ static void atp_complete(struct urb* urb)
}
/* reorder the sensors values */
- if (atp_is_geyser_3(dev)) {
+ if (atp_is_geyser_3_4(dev)) {
memset(dev->xy_cur, 0, sizeof(dev->xy_cur));
/*
@@ -455,13 +496,20 @@ static void atp_complete(struct urb* urb)
dbg_dump("sample", dev->xy_cur);
if (!dev->valid) {
- /* first sample */
+ /* first sample after init or resume */
dev->valid = 1;
dev->x_old = dev->y_old = -1;
memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old));
+ dev->idle_counter = 0;
+
+ /* store first sample on older Geyser */
+ if ((dev->data[dev->datalen-1] & ATP_STATUS_BIT_BASE_UPDATE) ||
+ !atp_is_geyser_3_4(dev))
+ memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old));
+
if (dev->size_detect_done ||
- atp_is_geyser_3(dev)) /* No 17" Macbooks (yet) */
+ atp_is_geyser_3_4(dev)) /* No 17" Macbooks (yet) */
goto exit;
/* 17" Powerbooks have extra X sensors */
@@ -487,26 +535,47 @@ static void atp_complete(struct urb* urb)
goto exit;
}
+ /* Just update the base values (i.e. touchpad in untouched state) */
+ if (dev->data[dev->datalen-1] & ATP_STATUS_BIT_BASE_UPDATE)
+ {
+ if (debug > 0) printk("appletouch: updated base values\n");
+
+ memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old));
+ goto exit;
+ }
+
for (i = 0; i < ATP_XSENSORS + ATP_YSENSORS; i++) {
- /* accumulate the change */
- signed char change = dev->xy_old[i] - dev->xy_cur[i];
- dev->xy_acc[i] -= change;
+ /* calculate the change */
+ dev->xy_acc[i] = dev->xy_cur[i] - dev->xy_old[i];
+
+ /* this is a round-robin value, so couple with that */
+ if (dev->xy_acc[i] > 127)
+ dev->xy_acc[i] -= 256;
+
+ if (dev->xy_acc[i] < -127)
+ dev->xy_acc[i] += 256;
+
+ /* Needed for the older Geyser */
+ if (!atp_is_geyser_3_4(dev))
+ {
+ /* store new 'untouched' value, if any new */
+ if (dev->xy_acc[i] < -1)
+ dev->xy_old[i] = dev->xy_cur[i];
+ }
/* prevent down drifting */
if (dev->xy_acc[i] < 0)
dev->xy_acc[i] = 0;
}
- memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old));
-
dbg_dump("accumulator", dev->xy_acc);
x = atp_calculate_abs(dev->xy_acc, ATP_XSENSORS,
ATP_XFACT, &x_z, &x_f);
y = atp_calculate_abs(dev->xy_acc + ATP_XSENSORS, ATP_YSENSORS,
ATP_YFACT, &y_z, &y_f);
- key = dev->data[dev->datalen - 1] & 1;
-
+ key = dev->data[dev->datalen - 1] & ATP_STATUS_BIT_BUTTON;
+
if (x && y) {
if (dev->x_old != -1) {
x = (dev->x_old * 3 + x) >> 2;
@@ -551,16 +620,28 @@ static void atp_complete(struct urb* urb)
* work on Fountain touchpads.
*/
if (!atp_is_fountain(dev)) {
+
+ /* Button must not be pressed when entering suspend,
+ otherwise we will never release the button. */
if (!x && !y && !key) {
- dev->idlecount++;
- if (dev->idlecount == 10) {
- dev->valid = 0;
+
+ /* Idle counter */
+ dev->idle_counter++;
+
+ /* Wait for 10 more packages before suspending */
+ if (dev->idle_counter > 10) {
+
+ /* Reset counter */
+ dev->idle_counter = 0;
+
+ /* Prepare for device reset */
schedule_work(&dev->work);
+
/* Don't resubmit urb here, wait for reinit */
return;
}
} else
- dev->idlecount = 0;
+ dev->idle_counter = 0;
}
exit:
@@ -628,7 +709,7 @@ static int atp_probe(struct usb_interface *iface, const struct usb_device_id *id
dev->udev = udev;
dev->input = input_dev;
dev->overflowwarn = 0;
- if (atp_is_geyser_3(dev))
+ if (atp_is_geyser_3_4(dev))
dev->datalen = 64;
else if (atp_is_geyser_2(dev))
dev->datalen = 64;
@@ -671,7 +752,7 @@ 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_3(dev)) {
+ if (atp_is_geyser_3_4(dev)) {
/*
* MacBook have 20 X sensors, 10 Y sensors
*/
@@ -714,6 +795,7 @@ static int atp_probe(struct usb_interface *iface, const struct usb_device_id *id
/* save our data pointer in this interface device */
usb_set_intfdata(iface, dev);
+ /* initialize kernel work queue for re-init out of interrupt context */
INIT_WORK(&dev->work, atp_reinit);
return 0;
|