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Input: bcm5974 - Add support for the Macbook 5 (Unibody)

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This patch adds support for the new unibody Macbook, with physically
integrated button and trackpad. Since the integrated button changes
the logic for touch-and-click, a device capability bit mask is now
reported in input_id.version, which can be picked up by user space
via a EVIOCGID call.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Tested-by: David M. Lary <dmlary@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Henrik Rydberg 2009-04-28 07:03:54 -07:00 committed by Dmitry Torokhov
parent 6916d97f6e
commit 158e928741
1 changed files with 43 additions and 2 deletions
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45
drivers/input/mouse/bcm5974.c
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@ -51,6 +51,10 @@
#define USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI 0x0230
#define USB_DEVICE_ID_APPLE_WELLSPRING2_ISO 0x0231
#define USB_DEVICE_ID_APPLE_WELLSPRING2_JIS 0x0232
/* Macbook5,1 (unibody), aka wellspring3 */
#define USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI 0x0236
#define USB_DEVICE_ID_APPLE_WELLSPRING3_ISO 0x0237
#define USB_DEVICE_ID_APPLE_WELLSPRING3_JIS 0x0238
#define BCM5974_DEVICE(prod) { \
.match_flags = (USB_DEVICE_ID_MATCH_DEVICE | \
@ -72,6 +76,10 @@ static const struct usb_device_id bcm5974_table[] = {
BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI),
BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ISO),
BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_JIS),
/* Macbook5,1 */
BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI),
BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ISO),
BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_JIS),
/* Terminating entry */
{}
};
@ -98,11 +106,19 @@ struct bt_data {
/* trackpad header types */
enum tp_type {
TYPE1 /* plain trackpad */
TYPE1, /* plain trackpad */
TYPE2 /* button integrated in trackpad */
};
/* trackpad finger data offsets, le16-aligned */
#define FINGER_TYPE1 (13 * sizeof(__le16))
#define FINGER_TYPE2 (15 * sizeof(__le16))
/* trackpad button data offsets */
#define BUTTON_TYPE2 15
/* list of device capability bits */
#define HAS_INTEGRATED_BUTTON 1
/* trackpad finger structure, le16-aligned */
struct tp_finger {
@ -135,6 +151,7 @@ struct bcm5974_param {
/* device-specific configuration */
struct bcm5974_config {
int ansi, iso, jis; /* the product id of this device */
int caps; /* device capability bitmask */
int bt_ep; /* the endpoint of the button interface */
int bt_datalen; /* data length of the button interface */
int tp_ep; /* the endpoint of the trackpad interface */
@ -184,6 +201,7 @@ static const struct bcm5974_config bcm5974_config_table[] = {
USB_DEVICE_ID_APPLE_WELLSPRING_ANSI,
USB_DEVICE_ID_APPLE_WELLSPRING_ISO,
USB_DEVICE_ID_APPLE_WELLSPRING_JIS,
0,
0x84, sizeof(struct bt_data),
0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS,
{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 256 },
@ -195,6 +213,7 @@ static const struct bcm5974_config bcm5974_config_table[] = {
USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI,
USB_DEVICE_ID_APPLE_WELLSPRING2_ISO,
USB_DEVICE_ID_APPLE_WELLSPRING2_JIS,
0,
0x84, sizeof(struct bt_data),
0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS,
{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 256 },
@ -202,6 +221,18 @@ static const struct bcm5974_config bcm5974_config_table[] = {
{ DIM_X, DIM_X / SN_COORD, -4824, 4824 },
{ DIM_Y, DIM_Y / SN_COORD, -172, 4290 }
},
{
USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI,
USB_DEVICE_ID_APPLE_WELLSPRING3_ISO,
USB_DEVICE_ID_APPLE_WELLSPRING3_JIS,
HAS_INTEGRATED_BUTTON,
0x84, sizeof(struct bt_data),
0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
{ DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
{ DIM_X, DIM_X / SN_COORD, -4460, 5166 },
{ DIM_Y, DIM_Y / SN_COORD, -75, 6700 }
},
{}
};
@ -281,7 +312,7 @@ static int report_tp_state(struct bcm5974 *dev, int size)
const struct tp_finger *f;
struct input_dev *input = dev->input;
int raw_p, raw_w, raw_x, raw_y, raw_n;
int ptest = 0, origin = 0, nmin = 0, nmax = 0;
int ptest = 0, origin = 0, ibt = 0, nmin = 0, nmax = 0;
int abs_p = 0, abs_w = 0, abs_x = 0, abs_y = 0;
if (size < c->tp_offset || (size - c->tp_offset) % SIZEOF_FINGER != 0)
@ -304,6 +335,10 @@ static int report_tp_state(struct bcm5974 *dev, int size)
ptest = int2bound(&c->p, raw_p);
origin = raw2int(f->origin);
/* set the integrated button if applicable */
if (c->tp_type == TYPE2)
ibt = raw2int(dev->tp_data[BUTTON_TYPE2]);
}
/* while tracking finger still valid, count all fingers */
@ -347,6 +382,10 @@ static int report_tp_state(struct bcm5974 *dev, int size)
}
/* type 2 reports button events via ibt only */
if (c->tp_type == TYPE2)
input_report_key(input, BTN_LEFT, ibt);
input_sync(input);
return 0;
@ -656,6 +695,8 @@ static int bcm5974_probe(struct usb_interface *iface,
input_dev->name = "bcm5974";
input_dev->phys = dev->phys;
usb_to_input_id(dev->udev, &input_dev->id);
/* report driver capabilities via the version field */
input_dev->id.version = cfg->caps;
input_dev->dev.parent = &iface->dev;
input_set_drvdata(input_dev, dev);