diff options
| author | Ben Gamari <ben@smart-cactus.org> | 2016-10-04 11:33:25 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2016-10-04 11:46:41 -0700 |
| commit | 4777ac220c430173e297237b896932ed5fd8aaf3 (patch) | |
| tree | 86fde151cee555985888c9b1aa8578accb2a1580 /drivers/input/mouse/alps.c | |
| parent | f9a703a54d16ba2470391c4b12236ee56591d50c (diff) | |
Input: ALPS - add touchstick support for SS5 hardware
Add touchstick support for the so-called SS5 hardware, which uses a
variant of the SS4 protocol.
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Ben Gamari <ben@smart-cactus.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/mouse/alps.c')
| -rw-r--r-- | drivers/input/mouse/alps.c | 65 |
1 files changed, 54 insertions, 11 deletions
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c index 936f07a4e35f..8e15783d2932 100644 --- a/drivers/input/mouse/alps.c +++ b/drivers/input/mouse/alps.c @@ -1156,15 +1156,28 @@ static unsigned char alps_get_pkt_id_ss4_v2(unsigned char *byte) { unsigned char pkt_id = SS4_PACKET_ID_IDLE; - if (byte[0] == 0x18 && byte[1] == 0x10 && byte[2] == 0x00 && - (byte[3] & 0x88) == 0x08 && byte[4] == 0x10 && byte[5] == 0x00) { - pkt_id = SS4_PACKET_ID_IDLE; - } else if (!(byte[3] & 0x10)) { - pkt_id = SS4_PACKET_ID_ONE; - } else if (!(byte[3] & 0x20)) { + switch (byte[3] & 0x30) { + case 0x00: + if (byte[0] == 0x18 && byte[1] == 0x10 && byte[2] == 0x00 && + (byte[3] & 0x88) == 0x08 && byte[4] == 0x10 && + byte[5] == 0x00) { + pkt_id = SS4_PACKET_ID_IDLE; + } else { + pkt_id = SS4_PACKET_ID_ONE; + } + break; + case 0x10: + /* two-finger finger positions */ pkt_id = SS4_PACKET_ID_TWO; - } else { + break; + case 0x20: + /* stick pointer */ + pkt_id = SS4_PACKET_ID_STICK; + break; + case 0x30: + /* third and fourth finger positions */ pkt_id = SS4_PACKET_ID_MULTI; + break; } return pkt_id; @@ -1246,16 +1259,38 @@ static int alps_decode_ss4_v2(struct alps_fields *f, } break; + case SS4_PACKET_ID_STICK: + if (!(priv->flags & ALPS_DUALPOINT)) { + psmouse_warn(psmouse, + "Rejected trackstick packet from non DualPoint device"); + } else { + int x = (s8)(((p[0] & 1) << 7) | (p[1] & 0x7f)); + int y = (s8)(((p[3] & 1) << 7) | (p[2] & 0x7f)); + + input_report_rel(priv->dev2, REL_X, x); + input_report_rel(priv->dev2, REL_Y, -y); + } + break; + case SS4_PACKET_ID_IDLE: default: memset(f, 0, sizeof(struct alps_fields)); break; } - f->left = !!(SS4_BTN_V2(p) & 0x01); - if (!(priv->flags & ALPS_BUTTONPAD)) { - f->right = !!(SS4_BTN_V2(p) & 0x02); - f->middle = !!(SS4_BTN_V2(p) & 0x04); + /* handle buttons */ + if (pkt_id == SS4_PACKET_ID_STICK) { + f->ts_left = !!(SS4_BTN_V2(p) & 0x01); + if (!(priv->flags & ALPS_BUTTONPAD)) { + f->ts_right = !!(SS4_BTN_V2(p) & 0x02); + f->ts_middle = !!(SS4_BTN_V2(p) & 0x04); + } + } else { + f->left = !!(SS4_BTN_V2(p) & 0x01); + if (!(priv->flags & ALPS_BUTTONPAD)) { + f->right = !!(SS4_BTN_V2(p) & 0x02); + f->middle = !!(SS4_BTN_V2(p) & 0x04); + } } return 0; @@ -1266,6 +1301,7 @@ static void alps_process_packet_ss4_v2(struct psmouse *psmouse) struct alps_data *priv = psmouse->private; unsigned char *packet = psmouse->packet; struct input_dev *dev = psmouse->dev; + struct input_dev *dev2 = priv->dev2; struct alps_fields *f = &priv->f; memset(f, 0, sizeof(struct alps_fields)); @@ -1311,6 +1347,13 @@ static void alps_process_packet_ss4_v2(struct psmouse *psmouse) input_report_abs(dev, ABS_PRESSURE, f->pressure); input_sync(dev); + + if (priv->flags & ALPS_DUALPOINT) { + 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); + } } static bool alps_is_valid_package_ss4_v2(struct psmouse *psmouse) |