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path: root/drivers/input/mouse/bcm5974.c
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Diffstat (limited to 'drivers/input/mouse/bcm5974.c')
-rw-r--r--drivers/input/mouse/bcm5974.c132
1 files changed, 81 insertions, 51 deletions
diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index b10709f04615..a596b9b9d604 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -184,17 +184,37 @@ enum tp_type {
};
/* trackpad finger data offsets, le16-aligned */
-#define FINGER_TYPE1 (13 * sizeof(__le16))
-#define FINGER_TYPE2 (15 * sizeof(__le16))
-#define FINGER_TYPE3 (19 * sizeof(__le16))
+#define HEADER_TYPE1 (13 * sizeof(__le16))
+#define HEADER_TYPE2 (15 * sizeof(__le16))
+#define HEADER_TYPE3 (19 * sizeof(__le16))
/* trackpad button data offsets */
+#define BUTTON_TYPE1 0
#define BUTTON_TYPE2 15
#define BUTTON_TYPE3 23
/* list of device capability bits */
#define HAS_INTEGRATED_BUTTON 1
+/* trackpad finger data block size */
+#define FSIZE_TYPE1 (14 * sizeof(__le16))
+#define FSIZE_TYPE2 (14 * sizeof(__le16))
+#define FSIZE_TYPE3 (14 * sizeof(__le16))
+
+/* offset from header to finger struct */
+#define DELTA_TYPE1 (0 * sizeof(__le16))
+#define DELTA_TYPE2 (0 * sizeof(__le16))
+#define DELTA_TYPE3 (0 * sizeof(__le16))
+
+/* usb control message mode switch data */
+#define USBMSG_TYPE1 8, 0x300, 0, 0, 0x1, 0x8
+#define USBMSG_TYPE2 8, 0x300, 0, 0, 0x1, 0x8
+#define USBMSG_TYPE3 8, 0x300, 0, 0, 0x1, 0x8
+
+/* Wellspring initialization constants */
+#define BCM5974_WELLSPRING_MODE_READ_REQUEST_ID 1
+#define BCM5974_WELLSPRING_MODE_WRITE_REQUEST_ID 9
+
/* trackpad finger structure, le16-aligned */
struct tp_finger {
__le16 origin; /* zero when switching track finger */
@@ -213,8 +233,6 @@ struct tp_finger {
/* trackpad finger data size, empirically at least ten fingers */
#define MAX_FINGERS 16
-#define SIZEOF_FINGER sizeof(struct tp_finger)
-#define SIZEOF_ALL_FINGERS (MAX_FINGERS * SIZEOF_FINGER)
#define MAX_FINGER_ORIENTATION 16384
/* device-specific parameters */
@@ -232,8 +250,17 @@ struct bcm5974_config {
int bt_datalen; /* data length of the button interface */
int tp_ep; /* the endpoint of the trackpad interface */
enum tp_type tp_type; /* type of trackpad interface */
- int tp_offset; /* offset to trackpad finger data */
+ int tp_header; /* bytes in header block */
int tp_datalen; /* data length of the trackpad interface */
+ int tp_button; /* offset to button data */
+ int tp_fsize; /* bytes in single finger block */
+ int tp_delta; /* offset from header to finger struct */
+ int um_size; /* usb control message length */
+ int um_req_val; /* usb control message value */
+ int um_req_idx; /* usb control message index */
+ int um_switch_idx; /* usb control message mode switch index */
+ int um_switch_on; /* usb control message mode switch on */
+ int um_switch_off; /* usb control message mode switch off */
struct bcm5974_param p; /* finger pressure limits */
struct bcm5974_param w; /* finger width limits */
struct bcm5974_param x; /* horizontal limits */
@@ -259,6 +286,24 @@ struct bcm5974 {
int slots[MAX_FINGERS]; /* slot assignments */
};
+/* trackpad finger block data, le16-aligned */
+static const struct tp_finger *get_tp_finger(const struct bcm5974 *dev, int i)
+{
+ const struct bcm5974_config *c = &dev->cfg;
+ u8 *f_base = dev->tp_data + c->tp_header + c->tp_delta;
+
+ return (const struct tp_finger *)(f_base + i * c->tp_fsize);
+}
+
+#define DATAFORMAT(type) \
+ type, \
+ HEADER_##type, \
+ HEADER_##type + (MAX_FINGERS) * (FSIZE_##type), \
+ BUTTON_##type, \
+ FSIZE_##type, \
+ DELTA_##type, \
+ USBMSG_##type
+
/* logical signal quality */
#define SN_PRESSURE 45 /* pressure signal-to-noise ratio */
#define SN_WIDTH 25 /* width signal-to-noise ratio */
@@ -273,7 +318,7 @@ static const struct bcm5974_config bcm5974_config_table[] = {
USB_DEVICE_ID_APPLE_WELLSPRING_JIS,
0,
0x84, sizeof(struct bt_data),
- 0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS,
+ 0x81, DATAFORMAT(TYPE1),
{ SN_PRESSURE, 0, 256 },
{ SN_WIDTH, 0, 2048 },
{ SN_COORD, -4824, 5342 },
@@ -286,7 +331,7 @@ static const struct bcm5974_config bcm5974_config_table[] = {
USB_DEVICE_ID_APPLE_WELLSPRING2_JIS,
0,
0x84, sizeof(struct bt_data),
- 0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS,
+ 0x81, DATAFORMAT(TYPE1),
{ SN_PRESSURE, 0, 256 },
{ SN_WIDTH, 0, 2048 },
{ SN_COORD, -4824, 4824 },
@@ -299,7 +344,7 @@ static const struct bcm5974_config bcm5974_config_table[] = {
USB_DEVICE_ID_APPLE_WELLSPRING3_JIS,
HAS_INTEGRATED_BUTTON,
0x84, sizeof(struct bt_data),
- 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ 0x81, DATAFORMAT(TYPE2),
{ SN_PRESSURE, 0, 300 },
{ SN_WIDTH, 0, 2048 },
{ SN_COORD, -4460, 5166 },
@@ -312,7 +357,7 @@ static const struct bcm5974_config bcm5974_config_table[] = {
USB_DEVICE_ID_APPLE_WELLSPRING4_JIS,
HAS_INTEGRATED_BUTTON,
0x84, sizeof(struct bt_data),
- 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ 0x81, DATAFORMAT(TYPE2),
{ SN_PRESSURE, 0, 300 },
{ SN_WIDTH, 0, 2048 },
{ SN_COORD, -4620, 5140 },
@@ -325,7 +370,7 @@ static const struct bcm5974_config bcm5974_config_table[] = {
USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS,
HAS_INTEGRATED_BUTTON,
0x84, sizeof(struct bt_data),
- 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ 0x81, DATAFORMAT(TYPE2),
{ SN_PRESSURE, 0, 300 },
{ SN_WIDTH, 0, 2048 },
{ SN_COORD, -4616, 5112 },
@@ -338,7 +383,7 @@ static const struct bcm5974_config bcm5974_config_table[] = {
USB_DEVICE_ID_APPLE_WELLSPRING5_JIS,
HAS_INTEGRATED_BUTTON,
0x84, sizeof(struct bt_data),
- 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ 0x81, DATAFORMAT(TYPE2),
{ SN_PRESSURE, 0, 300 },
{ SN_WIDTH, 0, 2048 },
{ SN_COORD, -4415, 5050 },
@@ -351,7 +396,7 @@ static const struct bcm5974_config bcm5974_config_table[] = {
USB_DEVICE_ID_APPLE_WELLSPRING6_JIS,
HAS_INTEGRATED_BUTTON,
0x84, sizeof(struct bt_data),
- 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ 0x81, DATAFORMAT(TYPE2),
{ SN_PRESSURE, 0, 300 },
{ SN_WIDTH, 0, 2048 },
{ SN_COORD, -4620, 5140 },
@@ -364,7 +409,7 @@ static const struct bcm5974_config bcm5974_config_table[] = {
USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS,
HAS_INTEGRATED_BUTTON,
0x84, sizeof(struct bt_data),
- 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ 0x81, DATAFORMAT(TYPE2),
{ SN_PRESSURE, 0, 300 },
{ SN_WIDTH, 0, 2048 },
{ SN_COORD, -4750, 5280 },
@@ -377,7 +422,7 @@ static const struct bcm5974_config bcm5974_config_table[] = {
USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS,
HAS_INTEGRATED_BUTTON,
0x84, sizeof(struct bt_data),
- 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ 0x81, DATAFORMAT(TYPE2),
{ SN_PRESSURE, 0, 300 },
{ SN_WIDTH, 0, 2048 },
{ SN_COORD, -4620, 5140 },
@@ -390,7 +435,7 @@ static const struct bcm5974_config bcm5974_config_table[] = {
USB_DEVICE_ID_APPLE_WELLSPRING7_JIS,
HAS_INTEGRATED_BUTTON,
0x84, sizeof(struct bt_data),
- 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ 0x81, DATAFORMAT(TYPE2),
{ SN_PRESSURE, 0, 300 },
{ SN_WIDTH, 0, 2048 },
{ SN_COORD, -4750, 5280 },
@@ -403,7 +448,7 @@ static const struct bcm5974_config bcm5974_config_table[] = {
USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS,
HAS_INTEGRATED_BUTTON,
0x84, sizeof(struct bt_data),
- 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ 0x81, DATAFORMAT(TYPE2),
{ SN_PRESSURE, 0, 300 },
{ SN_WIDTH, 0, 2048 },
{ SN_COORD, -4750, 5280 },
@@ -416,7 +461,7 @@ static const struct bcm5974_config bcm5974_config_table[] = {
USB_DEVICE_ID_APPLE_WELLSPRING8_JIS,
HAS_INTEGRATED_BUTTON,
0, sizeof(struct bt_data),
- 0x83, TYPE3, FINGER_TYPE3, FINGER_TYPE3 + SIZEOF_ALL_FINGERS,
+ 0x83, DATAFORMAT(TYPE3),
{ SN_PRESSURE, 0, 300 },
{ SN_WIDTH, 0, 2048 },
{ SN_COORD, -4620, 5140 },
@@ -549,19 +594,18 @@ static int report_tp_state(struct bcm5974 *dev, int size)
struct input_dev *input = dev->input;
int raw_n, i, n = 0;
- if (size < c->tp_offset || (size - c->tp_offset) % SIZEOF_FINGER != 0)
+ if (size < c->tp_header || (size - c->tp_header) % c->tp_fsize != 0)
return -EIO;
- /* finger data, le16-aligned */
- f = (const struct tp_finger *)(dev->tp_data + c->tp_offset);
- raw_n = (size - c->tp_offset) / SIZEOF_FINGER;
+ raw_n = (size - c->tp_header) / c->tp_fsize;
for (i = 0; i < raw_n; i++) {
- if (raw2int(f[i].touch_major) == 0)
+ f = get_tp_finger(dev, i);
+ if (raw2int(f->touch_major) == 0)
continue;
- dev->pos[n].x = raw2int(f[i].abs_x);
- dev->pos[n].y = c->y.min + c->y.max - raw2int(f[i].abs_y);
- dev->index[n++] = &f[i];
+ dev->pos[n].x = raw2int(f->abs_x);
+ dev->pos[n].y = c->y.min + c->y.max - raw2int(f->abs_y);
+ dev->index[n++] = f;
}
input_mt_assign_slots(input, dev->slots, dev->pos, n, 0);
@@ -572,32 +616,22 @@ static int report_tp_state(struct bcm5974 *dev, int size)
input_mt_sync_frame(input);
- report_synaptics_data(input, c, f, raw_n);
+ report_synaptics_data(input, c, get_tp_finger(dev, 0), raw_n);
- /* type 2 reports button events via ibt only */
- if (c->tp_type == TYPE2) {
- int ibt = raw2int(dev->tp_data[BUTTON_TYPE2]);
+ /* later types report button events via integrated button only */
+ if (c->caps & HAS_INTEGRATED_BUTTON) {
+ int ibt = raw2int(dev->tp_data[c->tp_button]);
input_report_key(input, BTN_LEFT, ibt);
}
- if (c->tp_type == TYPE3)
- input_report_key(input, BTN_LEFT, dev->tp_data[BUTTON_TYPE3]);
-
input_sync(input);
return 0;
}
-/* Wellspring initialization constants */
-#define BCM5974_WELLSPRING_MODE_READ_REQUEST_ID 1
-#define BCM5974_WELLSPRING_MODE_WRITE_REQUEST_ID 9
-#define BCM5974_WELLSPRING_MODE_REQUEST_VALUE 0x300
-#define BCM5974_WELLSPRING_MODE_REQUEST_INDEX 0
-#define BCM5974_WELLSPRING_MODE_VENDOR_VALUE 0x01
-#define BCM5974_WELLSPRING_MODE_NORMAL_VALUE 0x08
-
static int bcm5974_wellspring_mode(struct bcm5974 *dev, bool on)
{
+ const struct bcm5974_config *c = &dev->cfg;
int retval = 0, size;
char *data;
@@ -605,7 +639,7 @@ static int bcm5974_wellspring_mode(struct bcm5974 *dev, bool on)
if (dev->cfg.tp_type == TYPE3)
return 0;
- data = kmalloc(8, GFP_KERNEL);
+ data = kmalloc(c->um_size, GFP_KERNEL);
if (!data) {
dev_err(&dev->intf->dev, "out of memory\n");
retval = -ENOMEM;
@@ -616,28 +650,24 @@ static int bcm5974_wellspring_mode(struct bcm5974 *dev, bool on)
size = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
BCM5974_WELLSPRING_MODE_READ_REQUEST_ID,
USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
- BCM5974_WELLSPRING_MODE_REQUEST_VALUE,
- BCM5974_WELLSPRING_MODE_REQUEST_INDEX, data, 8, 5000);
+ c->um_req_val, c->um_req_idx, data, c->um_size, 5000);
- if (size != 8) {
+ if (size != c->um_size) {
dev_err(&dev->intf->dev, "could not read from device\n");
retval = -EIO;
goto out;
}
/* apply the mode switch */
- data[0] = on ?
- BCM5974_WELLSPRING_MODE_VENDOR_VALUE :
- BCM5974_WELLSPRING_MODE_NORMAL_VALUE;
+ data[c->um_switch_idx] = on ? c->um_switch_on : c->um_switch_off;
/* write configuration */
size = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
BCM5974_WELLSPRING_MODE_WRITE_REQUEST_ID,
USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
- BCM5974_WELLSPRING_MODE_REQUEST_VALUE,
- BCM5974_WELLSPRING_MODE_REQUEST_INDEX, data, 8, 5000);
+ c->um_req_val, c->um_req_idx, data, c->um_size, 5000);
- if (size != 8) {
+ if (size != c->um_size) {
dev_err(&dev->intf->dev, "could not write to device\n");
retval = -EIO;
goto out;
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-25 22:36:31 +0300