diff options
Diffstat (limited to 'drivers/input/mouse/alps.c')
| -rw-r--r-- | drivers/input/mouse/alps.c | 199 |
1 files changed, 90 insertions, 109 deletions
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c index 1c9917828956..8c3017a92788 100644 --- a/drivers/input/mouse/alps.c +++ b/drivers/input/mouse/alps.c @@ -282,11 +282,10 @@ static void alps_process_packet_v1_v2(struct psmouse *psmouse) * * 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 x1, y1, x2, and y2. + * These two points are returned in fields->mt. */ static void alps_process_bitmap_dolphin(struct alps_data *priv, - struct alps_fields *fields, - int *x1, int *y1, int *x2, int *y2) + struct alps_fields *fields) { int box_middle_x, box_middle_y; unsigned int x_map, y_map; @@ -309,8 +308,6 @@ static void alps_process_bitmap_dolphin(struct alps_data *priv, if (x_msb > priv->x_bits || y_msb > priv->y_bits) return; - *x1 = *y1 = *x2 = *y2 = 0; - if (fields->fingers > 1) { start_bit = priv->x_bits - x_msb; end_bit = priv->x_bits - x_lsb; @@ -321,10 +318,9 @@ static void alps_process_bitmap_dolphin(struct alps_data *priv, end_bit = y_msb - 1; box_middle_y = (priv->y_max * (start_bit + end_bit)) / (2 * (priv->y_bits - 1)); - *x1 = fields->x; - *y1 = fields->y; - *x2 = 2 * box_middle_x - *x1; - *y2 = 2 * box_middle_y - *y1; + 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; } } @@ -361,24 +357,21 @@ static void alps_get_bitmap_points(unsigned int map, * * The bitmaps don't have enough data to track fingers, so this function * only generates points representing a bounding box of all contacts. - * These points are returned in x1, y1, x2, and y2 when the return value + * These points are returned in fields->mt when the return value * is greater than 0. */ static int alps_process_bitmap(struct alps_data *priv, - unsigned int x_map, unsigned int y_map, - int *x1, int *y1, int *x2, int *y2) + struct alps_fields *fields) { int i, fingers_x = 0, fingers_y = 0, fingers; struct alps_bitmap_point x_low = {0,}, x_high = {0,}; struct alps_bitmap_point y_low = {0,}, y_high = {0,}; - if (!x_map || !y_map) + if (!fields->x_map || !fields->y_map) return 0; - *x1 = *y1 = *x2 = *y2 = 0; - - alps_get_bitmap_points(x_map, &x_low, &x_high, &fingers_x); - alps_get_bitmap_points(y_map, &y_low, &y_high, &fingers_y); + alps_get_bitmap_points(fields->x_map, &x_low, &x_high, &fingers_x); + alps_get_bitmap_points(fields->y_map, &y_low, &y_high, &fingers_y); /* * Fingers can overlap, so we use the maximum count of fingers @@ -403,22 +396,24 @@ static int alps_process_bitmap(struct alps_data *priv, y_high.num_bits = max(i, 1); } - *x1 = (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) / - (2 * (priv->x_bits - 1)); - *y1 = (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) / - (2 * (priv->y_bits - 1)); + fields->mt[0].x = + (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) / + (2 * (priv->x_bits - 1)); + fields->mt[0].y = + (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) / + (2 * (priv->y_bits - 1)); - *x2 = (priv->x_max * - (2 * x_high.start_bit + x_high.num_bits - 1)) / - (2 * (priv->x_bits - 1)); - *y2 = (priv->y_max * - (2 * y_high.start_bit + y_high.num_bits - 1)) / - (2 * (priv->y_bits - 1)); + fields->mt[1].x = + (priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) / + (2 * (priv->x_bits - 1)); + fields->mt[1].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->flags & ALPS_IS_RUSHMORE)) { - *y1 = priv->y_max - *y1; - *y2 = priv->y_max - *y2; + fields->mt[0].y = priv->y_max - fields->mt[0].y; + fields->mt[1].y = priv->y_max - fields->mt[1].y; } return fingers; @@ -435,11 +430,14 @@ static void alps_set_slot(struct input_dev *dev, int slot, bool active, } } -static void alps_report_semi_mt_data(struct input_dev *dev, int num_fingers, - int x1, int y1, int x2, int y2) +static void alps_report_semi_mt_data(struct psmouse *psmouse, int num_fingers) { - alps_set_slot(dev, 0, num_fingers != 0, x1, y1); - alps_set_slot(dev, 1, num_fingers == 2, x2, y2); + struct alps_data *priv = psmouse->private; + struct input_dev *dev = psmouse->dev; + struct alps_fields *f = &priv->f; + + alps_set_slot(dev, 0, num_fingers != 0, f->mt[0].x, f->mt[0].y); + alps_set_slot(dev, 1, num_fingers == 2, f->mt[1].x, f->mt[1].y); } static void alps_process_trackstick_packet_v3(struct psmouse *psmouse) @@ -527,10 +525,10 @@ static void alps_decode_pinnacle(struct alps_fields *f, unsigned char *p, ((p[2] & 0x7f) << 1) | (p[4] & 0x01); - f->x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) | + f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) | ((p[0] & 0x30) >> 4); - f->y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f); - f->z = p[5] & 0x7f; + f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f); + f->pressure = p[5] & 0x7f; alps_decode_buttons_v3(f, p); } @@ -557,9 +555,9 @@ static void alps_decode_dolphin(struct alps_fields *f, unsigned char *p, f->is_mp = !!(p[0] & 0x20); if (!f->is_mp) { - f->x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7)); - f->y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3)); - f->z = (p[0] & 4) ? 0 : p[5] & 0x7f; + f->st.x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7)); + f->st.y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3)); + f->pressure = (p[0] & 4) ? 0 : p[5] & 0x7f; alps_decode_buttons_v3(f, p); } else { f->fingers = ((p[0] & 0x6) >> 1 | @@ -588,10 +586,12 @@ static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) unsigned char *packet = psmouse->packet; struct input_dev *dev = psmouse->dev; struct input_dev *dev2 = priv->dev2; - int x1 = 0, y1 = 0, x2 = 0, y2 = 0, fingers = 0; - struct alps_fields f = {0}; + struct alps_fields *f = &priv->f; + int fingers = 0; + + memset(f, 0, sizeof(*f)); - priv->decode_fields(&f, packet, psmouse); + priv->decode_fields(f, packet, psmouse); /* * There's no single feature of touchpad position and bitmap packets @@ -606,16 +606,14 @@ static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) * packet. Check for this, and when it happens process the * position packet as usual. */ - if (f.is_mp) { - fingers = f.fingers; + if (f->is_mp) { + fingers = f->fingers; if (priv->proto_version == ALPS_PROTO_V3) { - if (alps_process_bitmap(priv, f.x_map, - f.y_map, &x1, &y1, - &x2, &y2) == 0) + if (alps_process_bitmap(priv, f) == 0) fingers = 0; /* Use st data */ /* Now process position packet */ - priv->decode_fields(&f, priv->multi_data, + priv->decode_fields(f, priv->multi_data, psmouse); } else { /* @@ -624,15 +622,14 @@ static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) * calculate Pt2, so we need to do position * packet decode first. */ - priv->decode_fields(&f, priv->multi_data, + 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, &x1, &y1, - &x2, &y2); + alps_process_bitmap_dolphin(priv, f); } } else { priv->multi_packet = 0; @@ -647,10 +644,10 @@ static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) * out misidentified bitmap packets, we reject anything with this * bit set. */ - if (f.is_mp) + if (f->is_mp) return; - if (!priv->multi_packet && f.first_mp) { + if (!priv->multi_packet && f->first_mp) { priv->multi_packet = 1; memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); return; @@ -664,7 +661,7 @@ static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) * with x, y, and z all zero, so these seem to be flukes. * Ignore them. */ - if (f.x && f.y && !f.z) + if (f->st.x && f->st.y && !f->pressure) return; /* @@ -672,36 +669,36 @@ static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) * to rely on ST data. */ if (!fingers) { - x1 = f.x; - y1 = f.y; - fingers = f.z > 0 ? 1 : 0; + f->mt[0].x = f->st.x; + f->mt[0].y = f->st.y; + fingers = f->pressure > 0 ? 1 : 0; } - if (f.z >= 64) + if (f->pressure >= 64) input_report_key(dev, BTN_TOUCH, 1); else input_report_key(dev, BTN_TOUCH, 0); - alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2); + alps_report_semi_mt_data(psmouse, fingers); input_mt_report_finger_count(dev, fingers); - input_report_key(dev, BTN_LEFT, f.left); - input_report_key(dev, BTN_RIGHT, f.right); - input_report_key(dev, BTN_MIDDLE, f.middle); + input_report_key(dev, BTN_LEFT, f->left); + input_report_key(dev, BTN_RIGHT, f->right); + input_report_key(dev, BTN_MIDDLE, f->middle); - if (f.z > 0) { - input_report_abs(dev, ABS_X, f.x); - input_report_abs(dev, ABS_Y, f.y); + if (f->pressure > 0) { + input_report_abs(dev, ABS_X, f->st.x); + input_report_abs(dev, ABS_Y, f->st.y); } - input_report_abs(dev, ABS_PRESSURE, f.z); + input_report_abs(dev, ABS_PRESSURE, f->pressure); input_sync(dev); if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) { - input_report_key(dev2, BTN_LEFT, f.ts_left); - input_report_key(dev2, BTN_RIGHT, f.ts_right); - input_report_key(dev2, BTN_MIDDLE, f.ts_middle); + input_report_key(dev2, BTN_LEFT, f->ts_left); + input_report_key(dev2, BTN_RIGHT, f->ts_right); + input_report_key(dev2, BTN_MIDDLE, f->ts_middle); input_sync(dev2); } } @@ -801,12 +798,8 @@ static void alps_process_packet_v4(struct psmouse *psmouse) struct alps_data *priv = psmouse->private; unsigned char *packet = psmouse->packet; struct input_dev *dev = psmouse->dev; - int offset; - int x, y, z; - int left, right; - int x1, y1, x2, y2; - int fingers = 0; - unsigned int x_bitmap, y_bitmap; + struct alps_fields *f = &priv->f; + int offset, fingers = 0; /* * v4 has a 6-byte encoding for bitmap data, but this data is @@ -828,67 +821,55 @@ static void alps_process_packet_v4(struct psmouse *psmouse) if (++priv->multi_packet > 2) { priv->multi_packet = 0; - x_bitmap = ((priv->multi_data[2] & 0x1f) << 10) | + f->x_map = ((priv->multi_data[2] & 0x1f) << 10) | ((priv->multi_data[3] & 0x60) << 3) | ((priv->multi_data[0] & 0x3f) << 2) | ((priv->multi_data[1] & 0x60) >> 5); - y_bitmap = ((priv->multi_data[5] & 0x01) << 10) | + f->y_map = ((priv->multi_data[5] & 0x01) << 10) | ((priv->multi_data[3] & 0x1f) << 5) | (priv->multi_data[1] & 0x1f); - fingers = alps_process_bitmap(priv, x_bitmap, y_bitmap, - &x1, &y1, &x2, &y2); - - /* Store MT data.*/ - priv->fingers = fingers; - priv->x1 = x1; - priv->x2 = x2; - priv->y1 = y1; - priv->y2 = y2; + f->fingers = alps_process_bitmap(priv, f); } - left = packet[4] & 0x01; - right = packet[4] & 0x02; + f->left = packet[4] & 0x01; + f->right = packet[4] & 0x02; - x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) | - ((packet[0] & 0x30) >> 4); - y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f); - z = packet[5] & 0x7f; + 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 there were no contacts in the bitmap, use ST * points in MT reports. * If there were two contacts or more, report MT data. */ - if (priv->fingers < 2) { - x1 = x; - y1 = y; - fingers = z > 0 ? 1 : 0; + if (f->fingers < 2) { + f->mt[0].x = f->st.x; + f->mt[0].y = f->st.y; + fingers = f->pressure > 0 ? 1 : 0; } else { - fingers = priv->fingers; - x1 = priv->x1; - x2 = priv->x2; - y1 = priv->y1; - y2 = priv->y2; + fingers = f->fingers; } - if (z >= 64) + if (f->pressure >= 64) input_report_key(dev, BTN_TOUCH, 1); else input_report_key(dev, BTN_TOUCH, 0); - alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2); + alps_report_semi_mt_data(psmouse, fingers); input_mt_report_finger_count(dev, fingers); - input_report_key(dev, BTN_LEFT, left); - input_report_key(dev, BTN_RIGHT, right); + input_report_key(dev, BTN_LEFT, f->left); + input_report_key(dev, BTN_RIGHT, f->right); - if (z > 0) { - input_report_abs(dev, ABS_X, x); - input_report_abs(dev, ABS_Y, y); + if (f->pressure > 0) { + input_report_abs(dev, ABS_X, f->st.x); + input_report_abs(dev, ABS_Y, f->st.y); } - input_report_abs(dev, ABS_PRESSURE, z); + input_report_abs(dev, ABS_PRESSURE, f->pressure); input_sync(dev); } |