#include <linux/input/mt.h>
#include <linux/serio.h>
#include <linux/libps2.h>
+#include <linux/dmi.h>
#include "psmouse.h"
#include "alps.h"
#define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */
#define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with
6-byte ALPS packet */
+#define ALPS_STICK_BITS 0x100 /* separate stick button bits */
#define ALPS_BUTTONPAD 0x200 /* device is a clickpad */
static const struct alps_model_info alps_model_data[] = {
ALPS_PROTO_V8, 0x18, 0x18, 0
};
+/*
+ * Some v2 models report the stick buttons in separate bits
+ */
+static const struct dmi_system_id alps_dmi_has_separate_stick_buttons[] = {
+#if defined(CONFIG_DMI) && defined(CONFIG_X86)
+ {
+ /* Extrapolated from other entries */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D420"),
+ },
+ },
+ {
+ /* Reported-by: Hans de Bruin <jmdebruin@xmsnet.nl> */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D430"),
+ },
+ },
+ {
+ /* Reported-by: Hans de Goede <hdegoede@redhat.com> */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D620"),
+ },
+ },
+ {
+ /* Extrapolated from other entries */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D630"),
+ },
+ },
+#endif
+ { }
+};
+
static void alps_set_abs_params_st(struct alps_data *priv,
struct input_dev *dev1);
-static void alps_set_abs_params_mt(struct alps_data *priv,
- struct input_dev *dev1);
+static void alps_set_abs_params_semi_mt(struct alps_data *priv,
+ struct input_dev *dev1);
static void alps_set_abs_params_v7(struct alps_data *priv,
struct input_dev *dev1);
static void alps_set_abs_params_ss4_v2(struct alps_data *priv,
return;
}
- /* Non interleaved V2 dualpoint has separate stick button bits */
- if (priv->proto_version == ALPS_PROTO_V2 &&
- priv->flags == (ALPS_PASS | ALPS_DUALPOINT)) {
+ /* Some models have separate stick button bits */
+ if (priv->flags & ALPS_STICK_BITS) {
left |= packet[0] & 1;
right |= packet[0] & 2;
middle |= packet[0] & 4;
input_sync(dev);
}
-/*
- * Process bitmap data for V5 protocols. Return value is null.
- *
- * The bitmaps don't have enough data to track fingers, so this function
- * only generates points representing a bounding box of at most two contacts.
- * These two points are returned in fields->mt.
- */
-static void alps_process_bitmap_dolphin(struct alps_data *priv,
- struct alps_fields *fields)
-{
- int box_middle_x, box_middle_y;
- unsigned int x_map, y_map;
- unsigned char start_bit, end_bit;
- unsigned char x_msb, x_lsb, y_msb, y_lsb;
-
- x_map = fields->x_map;
- y_map = fields->y_map;
-
- if (!x_map || !y_map)
- return;
-
- /* Get Most-significant and Least-significant bit */
- x_msb = fls(x_map);
- x_lsb = ffs(x_map);
- y_msb = fls(y_map);
- y_lsb = ffs(y_map);
-
- /* Most-significant bit should never exceed max sensor line number */
- if (x_msb > priv->x_bits || y_msb > priv->y_bits)
- return;
-
- if (fields->fingers > 1) {
- start_bit = priv->x_bits - x_msb;
- end_bit = priv->x_bits - x_lsb;
- box_middle_x = (priv->x_max * (start_bit + end_bit)) /
- (2 * (priv->x_bits - 1));
-
- start_bit = y_lsb - 1;
- end_bit = y_msb - 1;
- box_middle_y = (priv->y_max * (start_bit + end_bit)) /
- (2 * (priv->y_bits - 1));
- fields->mt[0] = fields->st;
- fields->mt[1].x = 2 * box_middle_x - fields->mt[0].x;
- fields->mt[1].y = 2 * box_middle_y - fields->mt[0].y;
- }
-}
-
static void alps_get_bitmap_points(unsigned int map,
struct alps_bitmap_point *low,
struct alps_bitmap_point *high,
}
/*
- * Process bitmap data from v3 and v4 protocols. Returns the number of
+ * Process bitmap data from semi-mt protocols. Returns the number of
* fingers detected. A return value of 0 means at least one of the
* bitmaps was empty.
*
static int alps_process_bitmap(struct alps_data *priv,
struct alps_fields *fields)
{
- int i, fingers_x = 0, fingers_y = 0, fingers;
+ int i, fingers_x = 0, fingers_y = 0, fingers, closest;
struct alps_bitmap_point x_low = {0,}, x_high = {0,};
struct alps_bitmap_point y_low = {0,}, y_high = {0,};
+ struct input_mt_pos corner[4];
if (!fields->x_map || !fields->y_map)
return 0;
y_high.num_bits = max(i, 1);
}
- fields->mt[0].x =
+ /* top-left corner */
+ corner[0].x =
(priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) /
(2 * (priv->x_bits - 1));
- fields->mt[0].y =
+ corner[0].y =
(priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) /
(2 * (priv->y_bits - 1));
- fields->mt[1].x =
+ /* top-right corner */
+ corner[1].x =
(priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) /
(2 * (priv->x_bits - 1));
- fields->mt[1].y =
+ corner[1].y =
+ (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) /
+ (2 * (priv->y_bits - 1));
+
+ /* bottom-right corner */
+ corner[2].x =
+ (priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) /
+ (2 * (priv->x_bits - 1));
+ corner[2].y =
+ (priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) /
+ (2 * (priv->y_bits - 1));
+
+ /* bottom-left corner */
+ corner[3].x =
+ (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) /
+ (2 * (priv->x_bits - 1));
+ corner[3].y =
(priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) /
(2 * (priv->y_bits - 1));
- /* y-bitmap order is reversed, except on rushmore */
- if (priv->proto_version != ALPS_PROTO_V3_RUSHMORE) {
- fields->mt[0].y = priv->y_max - fields->mt[0].y;
- fields->mt[1].y = priv->y_max - fields->mt[1].y;
+ /* x-bitmap order is reversed on v5 touchpads */
+ if (priv->proto_version == ALPS_PROTO_V5) {
+ for (i = 0; i < 4; i++)
+ corner[i].x = priv->x_max - corner[i].x;
+ }
+
+ /* y-bitmap order is reversed on v3 and v4 touchpads */
+ if (priv->proto_version == ALPS_PROTO_V3 ||
+ priv->proto_version == ALPS_PROTO_V4) {
+ for (i = 0; i < 4; i++)
+ corner[i].y = priv->y_max - corner[i].y;
+ }
+
+ /*
+ * We only select a corner for the second touch once per 2 finger
+ * touch sequence to avoid the chosen corner (and thus the coordinates)
+ * jumping around when the first touch is in the middle.
+ */
+ if (priv->second_touch == -1) {
+ /* Find corner closest to our st coordinates */
+ closest = 0x7fffffff;
+ for (i = 0; i < 4; i++) {
+ int dx = fields->st.x - corner[i].x;
+ int dy = fields->st.y - corner[i].y;
+ int distance = dx * dx + dy * dy;
+
+ if (distance < closest) {
+ priv->second_touch = i;
+ closest = distance;
+ }
+ }
+ /* And select the opposite corner to use for the 2nd touch */
+ priv->second_touch = (priv->second_touch + 2) % 4;
}
+ fields->mt[0] = fields->st;
+ fields->mt[1] = corner[priv->second_touch];
+
return fingers;
}
f->mt[0].x = f->st.x;
f->mt[0].y = f->st.y;
fingers = f->pressure > 0 ? 1 : 0;
+ priv->second_touch = -1;
}
- alps_report_mt_data(psmouse, (fingers <= 2) ? fingers : 2);
+ if (fingers >= 1)
+ alps_set_slot(dev, 0, f->mt[0].x, f->mt[0].y);
+ if (fingers >= 2)
+ alps_set_slot(dev, 1, f->mt[1].x, f->mt[1].y);
+ input_mt_sync_frame(dev);
input_mt_report_finger_count(dev, fingers);
f->first_mp = !!(p[4] & 0x40);
f->is_mp = !!(p[0] & 0x40);
- f->fingers = (p[5] & 0x3) + 1;
- f->x_map = ((p[4] & 0x7e) << 8) |
- ((p[1] & 0x7f) << 2) |
- ((p[0] & 0x30) >> 4);
- f->y_map = ((p[3] & 0x70) << 4) |
- ((p[2] & 0x7f) << 1) |
- (p[4] & 0x01);
-
- f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) |
- ((p[0] & 0x30) >> 4);
- f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f);
- f->pressure = p[5] & 0x7f;
+ if (f->is_mp) {
+ f->fingers = (p[5] & 0x3) + 1;
+ f->x_map = ((p[4] & 0x7e) << 8) |
+ ((p[1] & 0x7f) << 2) |
+ ((p[0] & 0x30) >> 4);
+ f->y_map = ((p[3] & 0x70) << 4) |
+ ((p[2] & 0x7f) << 1) |
+ (p[4] & 0x01);
+ } else {
+ f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) |
+ ((p[0] & 0x30) >> 4);
+ f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f);
+ f->pressure = p[5] & 0x7f;
- alps_decode_buttons_v3(f, p);
+ alps_decode_buttons_v3(f, p);
+ }
return 0;
}
static int alps_decode_rushmore(struct alps_fields *f, unsigned char *p,
struct psmouse *psmouse)
{
- alps_decode_pinnacle(f, p, psmouse);
-
- /* Rushmore's packet decode has a bit difference with Pinnacle's */
+ f->first_mp = !!(p[4] & 0x40);
f->is_mp = !!(p[5] & 0x40);
- f->fingers = max((p[5] & 0x3), ((p[5] >> 2) & 0x3)) + 1;
- f->x_map |= (p[5] & 0x10) << 11;
- f->y_map |= (p[5] & 0x20) << 6;
+
+ if (f->is_mp) {
+ f->fingers = max((p[5] & 0x3), ((p[5] >> 2) & 0x3)) + 1;
+ f->x_map = ((p[5] & 0x10) << 11) |
+ ((p[4] & 0x7e) << 8) |
+ ((p[1] & 0x7f) << 2) |
+ ((p[0] & 0x30) >> 4);
+ f->y_map = ((p[5] & 0x20) << 6) |
+ ((p[3] & 0x70) << 4) |
+ ((p[2] & 0x7f) << 1) |
+ (p[4] & 0x01);
+ } else {
+ f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) |
+ ((p[0] & 0x30) >> 4);
+ f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f);
+ f->pressure = p[5] & 0x7f;
+
+ alps_decode_buttons_v3(f, p);
+ }
return 0;
}
*/
if (f->is_mp) {
fingers = f->fingers;
- if (priv->proto_version == ALPS_PROTO_V3 ||
- priv->proto_version == ALPS_PROTO_V3_RUSHMORE) {
- if (alps_process_bitmap(priv, f) == 0)
- fingers = 0; /* Use st data */
-
- /* Now process position packet */
- priv->decode_fields(f, priv->multi_data,
- psmouse);
- } else {
- /*
- * Because Dolphin uses position packet's
- * coordinate data as Pt1 and uses it to
- * calculate Pt2, so we need to do position
- * packet decode first.
- */
- priv->decode_fields(f, priv->multi_data,
- psmouse);
-
- /*
- * Since Dolphin's finger number is reliable,
- * there is no need to compare with bmap_fn.
- */
- alps_process_bitmap_dolphin(priv, f);
- }
+ /*
+ * Bitmap processing uses position packet's coordinate
+ * data, so we need to do decode it first.
+ */
+ priv->decode_fields(f, priv->multi_data, psmouse);
+ if (alps_process_bitmap(priv, f) == 0)
+ fingers = 0; /* Use st data */
} else {
priv->multi_packet = 0;
}
priv->multi_data[offset] = packet[6];
priv->multi_data[offset + 1] = packet[7];
+ f->left = !!(packet[4] & 0x01);
+ f->right = !!(packet[4] & 0x02);
+
+ f->st.x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) |
+ ((packet[0] & 0x30) >> 4);
+ f->st.y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f);
+ f->pressure = packet[5] & 0x7f;
+
if (++priv->multi_packet > 2) {
priv->multi_packet = 0;
f->fingers = alps_process_bitmap(priv, f);
}
- f->left = !!(packet[4] & 0x01);
- f->right = !!(packet[4] & 0x02);
-
- f->st.x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) |
- ((packet[0] & 0x30) >> 4);
- f->st.y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f);
- f->pressure = packet[5] & 0x7f;
-
alps_report_semi_mt_data(psmouse, f->fingers);
}
priv->set_abs_params = alps_set_abs_params_st;
priv->x_max = 1023;
priv->y_max = 767;
+ if (dmi_check_system(alps_dmi_has_separate_stick_buttons))
+ priv->flags |= ALPS_STICK_BITS;
break;
case ALPS_PROTO_V3:
priv->hw_init = alps_hw_init_v3;
priv->process_packet = alps_process_packet_v3;
- priv->set_abs_params = alps_set_abs_params_mt;
+ priv->set_abs_params = alps_set_abs_params_semi_mt;
priv->decode_fields = alps_decode_pinnacle;
priv->nibble_commands = alps_v3_nibble_commands;
priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
case ALPS_PROTO_V3_RUSHMORE:
priv->hw_init = alps_hw_init_rushmore_v3;
priv->process_packet = alps_process_packet_v3;
- priv->set_abs_params = alps_set_abs_params_mt;
+ priv->set_abs_params = alps_set_abs_params_semi_mt;
priv->decode_fields = alps_decode_rushmore;
priv->nibble_commands = alps_v3_nibble_commands;
priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
case ALPS_PROTO_V4:
priv->hw_init = alps_hw_init_v4;
priv->process_packet = alps_process_packet_v4;
- priv->set_abs_params = alps_set_abs_params_mt;
+ priv->set_abs_params = alps_set_abs_params_semi_mt;
priv->nibble_commands = alps_v4_nibble_commands;
priv->addr_command = PSMOUSE_CMD_DISABLE;
break;
priv->hw_init = alps_hw_init_dolphin_v1;
priv->process_packet = alps_process_touchpad_packet_v3_v5;
priv->decode_fields = alps_decode_dolphin;
- priv->set_abs_params = alps_set_abs_params_mt;
+ priv->set_abs_params = alps_set_abs_params_semi_mt;
priv->nibble_commands = alps_v3_nibble_commands;
priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
priv->x_bits = 23;
set_bit(BTN_TOOL_QUADTAP, dev1->keybit);
}
-static void alps_set_abs_params_mt(struct alps_data *priv,
- struct input_dev *dev1)
+static void alps_set_abs_params_semi_mt(struct alps_data *priv,
+ struct input_dev *dev1)
{
alps_set_abs_params_mt_common(priv, dev1);
input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
input_mt_init_slots(dev1, MAX_TOUCHES,
INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED |
- INPUT_MT_TRACK | INPUT_MT_SEMI_MT);
+ INPUT_MT_SEMI_MT);
}
static void alps_set_abs_params_v7(struct alps_data *priv,
projects / karo-tx-linux.git / blobdiff