| /* |
| * ALPS touchpad PS/2 mouse driver |
| * |
| * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au> |
| * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com> |
| * Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru> |
| * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz> |
| * Copyright (c) 2009 Sebastian Kapfer <sebastian_kapfer@gmx.net> |
| * |
| * ALPS detection, tap switching and status querying info is taken from |
| * tpconfig utility (by C. Scott Ananian and Bruce Kall). |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 as published by |
| * the Free Software Foundation. |
| */ |
| |
| #include <linux/slab.h> |
| #include <linux/input.h> |
| #include <linux/serio.h> |
| #include <linux/libps2.h> |
| |
| #include "psmouse.h" |
| #include "alps.h" |
| |
| #define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */ |
| #define ALPS_PASS 0x04 /* device has a pass-through port */ |
| |
| #define ALPS_WHEEL 0x08 /* hardware wheel present */ |
| #define ALPS_FW_BK_1 0x10 /* front & back buttons present */ |
| #define ALPS_FW_BK_2 0x20 /* front & back buttons present */ |
| #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 */ |
| |
| static const struct alps_model_info alps_model_data[] = { |
| { { 0x32, 0x02, 0x14 }, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */ |
| { { 0x33, 0x02, 0x0a }, ALPS_PROTO_V1, 0x88, 0xf8, 0 }, /* UMAX-530T */ |
| { { 0x53, 0x02, 0x0a }, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, |
| { { 0x53, 0x02, 0x14 }, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, |
| { { 0x60, 0x03, 0xc8 }, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, /* HP ze1115 */ |
| { { 0x63, 0x02, 0x0a }, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, |
| { { 0x63, 0x02, 0x14 }, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, |
| { { 0x63, 0x02, 0x28 }, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */ |
| { { 0x63, 0x02, 0x3c }, ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */ |
| { { 0x63, 0x02, 0x50 }, ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */ |
| { { 0x63, 0x02, 0x64 }, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, |
| { { 0x63, 0x03, 0xc8 }, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */ |
| { { 0x73, 0x00, 0x0a }, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */ |
| { { 0x73, 0x02, 0x0a }, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, |
| { { 0x73, 0x02, 0x14 }, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */ |
| { { 0x20, 0x02, 0x0e }, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */ |
| { { 0x22, 0x02, 0x0a }, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, |
| { { 0x22, 0x02, 0x14 }, ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */ |
| /* Dell Latitude E5500, E6400, E6500, Precision M4400 */ |
| { { 0x62, 0x02, 0x14 }, ALPS_PROTO_V2, 0xcf, 0xcf, |
| ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, |
| { { 0x73, 0x02, 0x50 }, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */ |
| { { 0x52, 0x01, 0x14 }, ALPS_PROTO_V2, 0xff, 0xff, |
| ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, /* Toshiba Tecra A11-11L */ |
| }; |
| |
| /* |
| * XXX - this entry is suspicious. First byte has zero lower nibble, |
| * which is what a normal mouse would report. Also, the value 0x0e |
| * isn't valid per PS/2 spec. |
| */ |
| |
| /* Packet formats are described in Documentation/input/alps.txt */ |
| |
| static bool alps_is_valid_first_byte(const struct alps_model_info *model, |
| unsigned char data) |
| { |
| return (data & model->mask0) == model->byte0; |
| } |
| |
| static void alps_report_buttons(struct psmouse *psmouse, |
| struct input_dev *dev1, struct input_dev *dev2, |
| int left, int right, int middle) |
| { |
| struct input_dev *dev; |
| |
| /* |
| * If shared button has already been reported on the |
| * other device (dev2) then this event should be also |
| * sent through that device. |
| */ |
| dev = test_bit(BTN_LEFT, dev2->key) ? dev2 : dev1; |
| input_report_key(dev, BTN_LEFT, left); |
| |
| dev = test_bit(BTN_RIGHT, dev2->key) ? dev2 : dev1; |
| input_report_key(dev, BTN_RIGHT, right); |
| |
| dev = test_bit(BTN_MIDDLE, dev2->key) ? dev2 : dev1; |
| input_report_key(dev, BTN_MIDDLE, middle); |
| |
| /* |
| * Sync the _other_ device now, we'll do the first |
| * device later once we report the rest of the events. |
| */ |
| input_sync(dev2); |
| } |
| |
| static void alps_process_packet(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| const struct alps_model_info *model = priv->i; |
| unsigned char *packet = psmouse->packet; |
| struct input_dev *dev = psmouse->dev; |
| struct input_dev *dev2 = priv->dev2; |
| int x, y, z, ges, fin, left, right, middle; |
| int back = 0, forward = 0; |
| |
| if (model->proto_version == ALPS_PROTO_V1) { |
| left = packet[2] & 0x10; |
| right = packet[2] & 0x08; |
| middle = 0; |
| x = packet[1] | ((packet[0] & 0x07) << 7); |
| y = packet[4] | ((packet[3] & 0x07) << 7); |
| z = packet[5]; |
| } else { |
| left = packet[3] & 1; |
| right = packet[3] & 2; |
| middle = packet[3] & 4; |
| x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); |
| y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); |
| z = packet[5]; |
| } |
| |
| if (model->flags & ALPS_FW_BK_1) { |
| back = packet[0] & 0x10; |
| forward = packet[2] & 4; |
| } |
| |
| if (model->flags & ALPS_FW_BK_2) { |
| back = packet[3] & 4; |
| forward = packet[2] & 4; |
| if ((middle = forward && back)) |
| forward = back = 0; |
| } |
| |
| ges = packet[2] & 1; |
| fin = packet[2] & 2; |
| |
| if ((model->flags & ALPS_DUALPOINT) && z == 127) { |
| input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); |
| input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); |
| |
| alps_report_buttons(psmouse, dev2, dev, left, right, middle); |
| |
| input_sync(dev2); |
| return; |
| } |
| |
| alps_report_buttons(psmouse, dev, dev2, left, right, middle); |
| |
| /* Convert hardware tap to a reasonable Z value */ |
| if (ges && !fin) |
| z = 40; |
| |
| /* |
| * A "tap and drag" operation is reported by the hardware as a transition |
| * from (!fin && ges) to (fin && ges). This should be translated to the |
| * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. |
| */ |
| if (ges && fin && !priv->prev_fin) { |
| input_report_abs(dev, ABS_X, x); |
| input_report_abs(dev, ABS_Y, y); |
| input_report_abs(dev, ABS_PRESSURE, 0); |
| input_report_key(dev, BTN_TOOL_FINGER, 0); |
| input_sync(dev); |
| } |
| priv->prev_fin = fin; |
| |
| if (z > 30) |
| input_report_key(dev, BTN_TOUCH, 1); |
| if (z < 25) |
| input_report_key(dev, BTN_TOUCH, 0); |
| |
| if (z > 0) { |
| input_report_abs(dev, ABS_X, x); |
| input_report_abs(dev, ABS_Y, y); |
| } |
| |
| input_report_abs(dev, ABS_PRESSURE, z); |
| input_report_key(dev, BTN_TOOL_FINGER, z > 0); |
| |
| if (model->flags & ALPS_WHEEL) |
| input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07)); |
| |
| if (model->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { |
| input_report_key(dev, BTN_FORWARD, forward); |
| input_report_key(dev, BTN_BACK, back); |
| } |
| |
| if (model->flags & ALPS_FOUR_BUTTONS) { |
| input_report_key(dev, BTN_0, packet[2] & 4); |
| input_report_key(dev, BTN_1, packet[0] & 0x10); |
| input_report_key(dev, BTN_2, packet[3] & 4); |
| input_report_key(dev, BTN_3, packet[0] & 0x20); |
| } |
| |
| input_sync(dev); |
| } |
| |
| static void alps_report_bare_ps2_packet(struct psmouse *psmouse, |
| unsigned char packet[], |
| bool report_buttons) |
| { |
| struct alps_data *priv = psmouse->private; |
| struct input_dev *dev2 = priv->dev2; |
| |
| if (report_buttons) |
| alps_report_buttons(psmouse, dev2, psmouse->dev, |
| packet[0] & 1, packet[0] & 2, packet[0] & 4); |
| |
| input_report_rel(dev2, REL_X, |
| packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0); |
| input_report_rel(dev2, REL_Y, |
| packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0); |
| |
| input_sync(dev2); |
| } |
| |
| static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| |
| if (psmouse->pktcnt < 6) |
| return PSMOUSE_GOOD_DATA; |
| |
| if (psmouse->pktcnt == 6) { |
| /* |
| * Start a timer to flush the packet if it ends up last |
| * 6-byte packet in the stream. Timer needs to fire |
| * psmouse core times out itself. 20 ms should be enough |
| * to decide if we are getting more data or not. |
| */ |
| mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20)); |
| return PSMOUSE_GOOD_DATA; |
| } |
| |
| del_timer(&priv->timer); |
| |
| if (psmouse->packet[6] & 0x80) { |
| |
| /* |
| * Highest bit is set - that means we either had |
| * complete ALPS packet and this is start of the |
| * next packet or we got garbage. |
| */ |
| |
| if (((psmouse->packet[3] | |
| psmouse->packet[4] | |
| psmouse->packet[5]) & 0x80) || |
| (!alps_is_valid_first_byte(priv->i, psmouse->packet[6]))) { |
| psmouse_dbg(psmouse, |
| "refusing packet %x %x %x %x (suspected interleaved ps/2)\n", |
| psmouse->packet[3], psmouse->packet[4], |
| psmouse->packet[5], psmouse->packet[6]); |
| return PSMOUSE_BAD_DATA; |
| } |
| |
| alps_process_packet(psmouse); |
| |
| /* Continue with the next packet */ |
| psmouse->packet[0] = psmouse->packet[6]; |
| psmouse->pktcnt = 1; |
| |
| } else { |
| |
| /* |
| * High bit is 0 - that means that we indeed got a PS/2 |
| * packet in the middle of ALPS packet. |
| * |
| * There is also possibility that we got 6-byte ALPS |
| * packet followed by 3-byte packet from trackpoint. We |
| * can not distinguish between these 2 scenarios but |
| * because the latter is unlikely to happen in course of |
| * normal operation (user would need to press all |
| * buttons on the pad and start moving trackpoint |
| * without touching the pad surface) we assume former. |
| * Even if we are wrong the wost thing that would happen |
| * the cursor would jump but we should not get protocol |
| * de-synchronization. |
| */ |
| |
| alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3], |
| false); |
| |
| /* |
| * Continue with the standard ALPS protocol handling, |
| * but make sure we won't process it as an interleaved |
| * packet again, which may happen if all buttons are |
| * pressed. To avoid this let's reset the 4th bit which |
| * is normally 1. |
| */ |
| psmouse->packet[3] = psmouse->packet[6] & 0xf7; |
| psmouse->pktcnt = 4; |
| } |
| |
| return PSMOUSE_GOOD_DATA; |
| } |
| |
| static void alps_flush_packet(unsigned long data) |
| { |
| struct psmouse *psmouse = (struct psmouse *)data; |
| |
| serio_pause_rx(psmouse->ps2dev.serio); |
| |
| if (psmouse->pktcnt == psmouse->pktsize) { |
| |
| /* |
| * We did not any more data in reasonable amount of time. |
| * Validate the last 3 bytes and process as a standard |
| * ALPS packet. |
| */ |
| if ((psmouse->packet[3] | |
| psmouse->packet[4] | |
| psmouse->packet[5]) & 0x80) { |
| psmouse_dbg(psmouse, |
| "refusing packet %x %x %x (suspected interleaved ps/2)\n", |
| psmouse->packet[3], psmouse->packet[4], |
| psmouse->packet[5]); |
| } else { |
| alps_process_packet(psmouse); |
| } |
| psmouse->pktcnt = 0; |
| } |
| |
| serio_continue_rx(psmouse->ps2dev.serio); |
| } |
| |
| static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| const struct alps_model_info *model = priv->i; |
| |
| if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */ |
| if (psmouse->pktcnt == 3) { |
| alps_report_bare_ps2_packet(psmouse, psmouse->packet, |
| true); |
| return PSMOUSE_FULL_PACKET; |
| } |
| return PSMOUSE_GOOD_DATA; |
| } |
| |
| /* Check for PS/2 packet stuffed in the middle of ALPS packet. */ |
| |
| if ((model->flags & ALPS_PS2_INTERLEAVED) && |
| psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) { |
| return alps_handle_interleaved_ps2(psmouse); |
| } |
| |
| if (!alps_is_valid_first_byte(model, psmouse->packet[0])) { |
| psmouse_dbg(psmouse, |
| "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n", |
| psmouse->packet[0], model->mask0, model->byte0); |
| return PSMOUSE_BAD_DATA; |
| } |
| |
| /* Bytes 2 - pktsize should have 0 in the highest bit */ |
| if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize && |
| (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) { |
| psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", |
| psmouse->pktcnt - 1, |
| psmouse->packet[psmouse->pktcnt - 1]); |
| return PSMOUSE_BAD_DATA; |
| } |
| |
| if (psmouse->pktcnt == psmouse->pktsize) { |
| alps_process_packet(psmouse); |
| return PSMOUSE_FULL_PACKET; |
| } |
| |
| return PSMOUSE_GOOD_DATA; |
| } |
| |
| static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| static const unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 }; |
| unsigned char param[4]; |
| int i; |
| |
| /* |
| * First try "E6 report". |
| * ALPS should return 0,0,10 or 0,0,100 |
| */ |
| param[0] = 0; |
| if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11)) |
| return NULL; |
| |
| param[0] = param[1] = param[2] = 0xff; |
| if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) |
| return NULL; |
| |
| psmouse_dbg(psmouse, "E6 report: %2.2x %2.2x %2.2x", |
| param[0], param[1], param[2]); |
| |
| if (param[0] != 0 || param[1] != 0 || (param[2] != 10 && param[2] != 100)) |
| return NULL; |
| |
| /* |
| * Now try "E7 report". Allowed responses are in |
| * alps_model_data[].signature |
| */ |
| param[0] = 0; |
| if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21)) |
| return NULL; |
| |
| param[0] = param[1] = param[2] = 0xff; |
| if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) |
| return NULL; |
| |
| psmouse_dbg(psmouse, "E7 report: %2.2x %2.2x %2.2x", |
| param[0], param[1], param[2]); |
| |
| if (version) { |
| for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++) |
| /* empty */; |
| *version = (param[0] << 8) | (param[1] << 4) | i; |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) |
| if (!memcmp(param, alps_model_data[i].signature, |
| sizeof(alps_model_data[i].signature))) |
| return alps_model_data + i; |
| |
| return NULL; |
| } |
| |
| /* |
| * For DualPoint devices select the device that should respond to |
| * subsequent commands. It looks like glidepad is behind stickpointer, |
| * I'd thought it would be other way around... |
| */ |
| static int alps_passthrough_mode(struct psmouse *psmouse, bool enable) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; |
| |
| if (ps2_command(ps2dev, NULL, cmd) || |
| ps2_command(ps2dev, NULL, cmd) || |
| ps2_command(ps2dev, NULL, cmd) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) |
| return -1; |
| |
| /* we may get 3 more bytes, just ignore them */ |
| ps2_drain(ps2dev, 3, 100); |
| |
| return 0; |
| } |
| |
| static int alps_absolute_mode(struct psmouse *psmouse) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| |
| /* Try ALPS magic knock - 4 disable before enable */ |
| if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) |
| return -1; |
| |
| /* |
| * Switch mouse to poll (remote) mode so motion data will not |
| * get in our way |
| */ |
| return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL); |
| } |
| |
| static int alps_get_status(struct psmouse *psmouse, char *param) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| |
| /* Get status: 0xF5 0xF5 0xF5 0xE9 */ |
| if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) |
| return -1; |
| |
| psmouse_dbg(psmouse, "Status: %2.2x %2.2x %2.2x", |
| param[0], param[1], param[2]); |
| |
| return 0; |
| } |
| |
| /* |
| * Turn touchpad tapping on or off. The sequences are: |
| * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, |
| * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. |
| * My guess that 0xE9 (GetInfo) is here as a sync point. |
| * For models that also have stickpointer (DualPoints) its tapping |
| * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but |
| * we don't fiddle with it. |
| */ |
| static int alps_tap_mode(struct psmouse *psmouse, int enable) |
| { |
| struct ps2dev *ps2dev = &psmouse->ps2dev; |
| int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; |
| unsigned char tap_arg = enable ? 0x0A : 0x00; |
| unsigned char param[4]; |
| |
| if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || |
| ps2_command(ps2dev, &tap_arg, cmd)) |
| return -1; |
| |
| if (alps_get_status(psmouse, param)) |
| return -1; |
| |
| return 0; |
| } |
| |
| /* |
| * alps_poll() - poll the touchpad for current motion packet. |
| * Used in resync. |
| */ |
| static int alps_poll(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| unsigned char buf[sizeof(psmouse->packet)]; |
| bool poll_failed; |
| |
| if (priv->i->flags & ALPS_PASS) |
| alps_passthrough_mode(psmouse, true); |
| |
| poll_failed = ps2_command(&psmouse->ps2dev, buf, |
| PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0; |
| |
| if (priv->i->flags & ALPS_PASS) |
| alps_passthrough_mode(psmouse, false); |
| |
| if (poll_failed || (buf[0] & priv->i->mask0) != priv->i->byte0) |
| return -1; |
| |
| if ((psmouse->badbyte & 0xc8) == 0x08) { |
| /* |
| * Poll the track stick ... |
| */ |
| if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8))) |
| return -1; |
| } |
| |
| memcpy(psmouse->packet, buf, sizeof(buf)); |
| return 0; |
| } |
| |
| static int alps_hw_init(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| const struct alps_model_info *model = priv->i; |
| |
| if ((model->flags & ALPS_PASS) && |
| alps_passthrough_mode(psmouse, true)) { |
| return -1; |
| } |
| |
| if (alps_tap_mode(psmouse, true)) { |
| psmouse_warn(psmouse, "Failed to enable hardware tapping\n"); |
| return -1; |
| } |
| |
| if (alps_absolute_mode(psmouse)) { |
| psmouse_err(psmouse, "Failed to enable absolute mode\n"); |
| return -1; |
| } |
| |
| if ((model->flags & ALPS_PASS) && |
| alps_passthrough_mode(psmouse, false)) { |
| return -1; |
| } |
| |
| /* ALPS needs stream mode, otherwise it won't report any data */ |
| if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) { |
| psmouse_err(psmouse, "Failed to enable stream mode\n"); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| static int alps_reconnect(struct psmouse *psmouse) |
| { |
| const struct alps_model_info *model; |
| |
| psmouse_reset(psmouse); |
| |
| model = alps_get_model(psmouse, NULL); |
| if (!model) |
| return -1; |
| |
| return alps_hw_init(psmouse); |
| } |
| |
| static void alps_disconnect(struct psmouse *psmouse) |
| { |
| struct alps_data *priv = psmouse->private; |
| |
| psmouse_reset(psmouse); |
| del_timer_sync(&priv->timer); |
| input_unregister_device(priv->dev2); |
| kfree(priv); |
| } |
| |
| int alps_init(struct psmouse *psmouse) |
| { |
| struct alps_data *priv; |
| const struct alps_model_info *model; |
| struct input_dev *dev1 = psmouse->dev, *dev2; |
| int version; |
| |
| priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL); |
| dev2 = input_allocate_device(); |
| if (!priv || !dev2) |
| goto init_fail; |
| |
| priv->dev2 = dev2; |
| setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse); |
| |
| psmouse->private = priv; |
| |
| model = alps_get_model(psmouse, &version); |
| if (!model) |
| goto init_fail; |
| |
| priv->i = model; |
| |
| if (alps_hw_init(psmouse)) |
| goto init_fail; |
| |
| /* |
| * Undo part of setup done for us by psmouse core since touchpad |
| * is not a relative device. |
| */ |
| __clear_bit(EV_REL, dev1->evbit); |
| __clear_bit(REL_X, dev1->relbit); |
| __clear_bit(REL_Y, dev1->relbit); |
| |
| /* |
| * Now set up our capabilities. |
| */ |
| dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY); |
| dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH); |
| dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER); |
| dev1->keybit[BIT_WORD(BTN_LEFT)] |= |
| BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); |
| |
| dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS); |
| input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0); |
| input_set_abs_params(dev1, ABS_Y, 0, 767, 0, 0); |
| input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); |
| |
| if (model->flags & ALPS_WHEEL) { |
| dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL); |
| dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL); |
| } |
| |
| if (model->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { |
| dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD); |
| dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK); |
| } |
| |
| if (model->flags & ALPS_FOUR_BUTTONS) { |
| dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0); |
| dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1); |
| dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2); |
| dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3); |
| } else { |
| dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE); |
| } |
| |
| snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys); |
| dev2->phys = priv->phys; |
| dev2->name = (model->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse"; |
| dev2->id.bustype = BUS_I8042; |
| dev2->id.vendor = 0x0002; |
| dev2->id.product = PSMOUSE_ALPS; |
| dev2->id.version = 0x0000; |
| dev2->dev.parent = &psmouse->ps2dev.serio->dev; |
| |
| dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); |
| dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); |
| dev2->keybit[BIT_WORD(BTN_LEFT)] = |
| BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); |
| |
| if (input_register_device(priv->dev2)) |
| goto init_fail; |
| |
| psmouse->protocol_handler = alps_process_byte; |
| psmouse->poll = alps_poll; |
| psmouse->disconnect = alps_disconnect; |
| psmouse->reconnect = alps_reconnect; |
| psmouse->pktsize = 6; |
| |
| /* We are having trouble resyncing ALPS touchpads so disable it for now */ |
| psmouse->resync_time = 0; |
| |
| return 0; |
| |
| init_fail: |
| psmouse_reset(psmouse); |
| input_free_device(dev2); |
| kfree(priv); |
| psmouse->private = NULL; |
| return -1; |
| } |
| |
| int alps_detect(struct psmouse *psmouse, bool set_properties) |
| { |
| int version; |
| const struct alps_model_info *model; |
| |
| model = alps_get_model(psmouse, &version); |
| if (!model) |
| return -1; |
| |
| if (set_properties) { |
| psmouse->vendor = "ALPS"; |
| psmouse->name = model->flags & ALPS_DUALPOINT ? |
| "DualPoint TouchPad" : "GlidePoint"; |
| psmouse->model = version; |
| } |
| return 0; |
| } |
| |