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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-05-24 09:30:15 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-05-24 09:30:15 -0700 |
| commit | 754451342fc5954061ede74b0a8485ec4a4c6eaa (patch) | |
| tree | 82daccba5779de492631c42e47a614bd9d4cddd2 /drivers/input/mouse/alps.c | |
| parent | bf232e460a3530adf17da7d7f1332347b73a3d08 (diff) | |
| parent | 771c577c23bac90597c685971d7297ea00f99d11 (diff) | |
Merge tag 'v4.17-rc6' into next
Sync up with mainline to bring in Atmel controller changes for Caroline.
Diffstat (limited to 'drivers/input/mouse/alps.c')
| -rw-r--r-- | drivers/input/mouse/alps.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c index adf7f05c643a..cb5579716dba 100644 --- a/drivers/input/mouse/alps.c +++ b/drivers/input/mouse/alps.c @@ -583,7 +583,7 @@ static void alps_process_trackstick_packet_v3(struct psmouse *psmouse) x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f)); y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f)); - z = packet[4] & 0x7c; + z = packet[4] & 0x7f; /* * The x and y values tend to be quite large, and when used @@ -2548,13 +2548,31 @@ static int alps_update_btn_info_ss4_v2(unsigned char otp[][4], } static int alps_update_dual_info_ss4_v2(unsigned char otp[][4], - struct alps_data *priv) + struct alps_data *priv, + struct psmouse *psmouse) { bool is_dual = false; + int reg_val = 0; + struct ps2dev *ps2dev = &psmouse->ps2dev; - if (IS_SS4PLUS_DEV(priv->dev_id)) + if (IS_SS4PLUS_DEV(priv->dev_id)) { is_dual = (otp[0][0] >> 4) & 0x01; + if (!is_dual) { + /* For support TrackStick of Thinkpad L/E series */ + if (alps_exit_command_mode(psmouse) == 0 && + alps_enter_command_mode(psmouse) == 0) { + reg_val = alps_command_mode_read_reg(psmouse, + 0xD7); + } + alps_exit_command_mode(psmouse); + ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); + + if (reg_val == 0x0C || reg_val == 0x1D) + is_dual = true; + } + } + if (is_dual) priv->flags |= ALPS_DUALPOINT | ALPS_DUALPOINT_WITH_PRESSURE; @@ -2577,7 +2595,7 @@ static int alps_set_defaults_ss4_v2(struct psmouse *psmouse, alps_update_btn_info_ss4_v2(otp, priv); - alps_update_dual_info_ss4_v2(otp, priv); + alps_update_dual_info_ss4_v2(otp, priv, psmouse); return 0; } |