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@xxxxxxxxxxx>
Tested-by: David M. Lary <dmlary@xxxxxxxxx>
---
drivers/input/mouse/bcm5974.c | 45 +++++++++++++++++++++++++++++++++++++++-
1 files changed, 43 insertions(+), 2 deletions(-)
diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index a170574..7c44199 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -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 */
#define FINGER_TYPE1 26
+#define FINGER_TYPE2 30
+
+/* trackpad button data offsets */
+#define BUTTON_TYPE2 15
+
+/* list of device capability bits */
+#define HAS_INTEGRATED_BUTTON 1
/* trackpad finger structure */
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)
@@ -303,6 +334,10 @@ 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 */
@@ -346,6 +381,10 @@ 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;
@@ -655,6 +694,8 @@ 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);
--
1.5.6.3
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