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Input: ALPS - add support for protocol versions 3 and 4
This patch adds support for two ALPS touchpad protocols not supported currently by the driver, which I am arbitrarily naming version 3 and version 4. Support is single-touch only at this time, although both protocols are capable of limited multitouch support. Thanks to Andrew Skalski, who did the initial reverse-engineering of the v3 protocol. Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Acked-by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Seth Forshee
Dmitry Torokhov
parent
b46615fe92
commit
25bded7cd6
@ -23,6 +23,50 @@
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#include "psmouse.h"
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#include "alps.h"
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/*
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* Definitions for ALPS version 3 and 4 command mode protocol
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*/
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#define ALPS_CMD_NIBBLE_10 0x01f2
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static const struct alps_nibble_commands alps_v3_nibble_commands[] = {
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{ PSMOUSE_CMD_SETPOLL, 0x00 }, /* 0 */
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{ PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */
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{ PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */
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{ PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */
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{ PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */
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{ PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */
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{ PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */
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{ PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */
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{ PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */
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{ PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */
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{ ALPS_CMD_NIBBLE_10, 0x00 }, /* a */
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{ PSMOUSE_CMD_SETRES, 0x00 }, /* b */
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{ PSMOUSE_CMD_SETRES, 0x01 }, /* c */
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{ PSMOUSE_CMD_SETRES, 0x02 }, /* d */
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{ PSMOUSE_CMD_SETRES, 0x03 }, /* e */
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{ PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */
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};
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static const struct alps_nibble_commands alps_v4_nibble_commands[] = {
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{ PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */
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{ PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */
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{ PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */
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{ PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */
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{ PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */
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{ PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */
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{ PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */
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{ PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */
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{ PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */
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{ PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */
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{ ALPS_CMD_NIBBLE_10, 0x00 }, /* a */
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{ PSMOUSE_CMD_SETRES, 0x00 }, /* b */
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{ PSMOUSE_CMD_SETRES, 0x01 }, /* c */
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{ PSMOUSE_CMD_SETRES, 0x02 }, /* d */
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{ PSMOUSE_CMD_SETRES, 0x03 }, /* e */
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{ PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */
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};
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#define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */
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#define ALPS_PASS 0x04 /* device has a pass-through port */
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@ -34,30 +78,33 @@
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6-byte ALPS packet */
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static const struct alps_model_info alps_model_data[] = {
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{ { 0x32, 0x02, 0x14 }, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */
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{ { 0x33, 0x02, 0x0a }, ALPS_PROTO_V1, 0x88, 0xf8, 0 }, /* UMAX-530T */
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{ { 0x53, 0x02, 0x0a }, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x53, 0x02, 0x14 }, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x60, 0x03, 0xc8 }, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, /* HP ze1115 */
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{ { 0x63, 0x02, 0x0a }, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x63, 0x02, 0x14 }, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x63, 0x02, 0x28 }, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */
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{ { 0x63, 0x02, 0x3c }, ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */
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{ { 0x63, 0x02, 0x50 }, ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */
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{ { 0x63, 0x02, 0x64 }, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x63, 0x03, 0xc8 }, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */
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{ { 0x73, 0x00, 0x0a }, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */
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{ { 0x73, 0x02, 0x0a }, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x73, 0x02, 0x14 }, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */
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{ { 0x20, 0x02, 0x0e }, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */
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{ { 0x22, 0x02, 0x0a }, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT },
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{ { 0x22, 0x02, 0x14 }, ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */
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{ { 0x32, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */
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{ { 0x33, 0x02, 0x0a }, 0x00, ALPS_PROTO_V1, 0x88, 0xf8, 0 }, /* UMAX-530T */
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{ { 0x53, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x53, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x60, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, /* HP ze1115 */
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{ { 0x63, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x63, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x63, 0x02, 0x28 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */
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{ { 0x63, 0x02, 0x3c }, 0x00, ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */
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{ { 0x63, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */
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{ { 0x63, 0x02, 0x64 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x63, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */
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{ { 0x73, 0x00, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */
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{ { 0x73, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
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{ { 0x73, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */
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{ { 0x20, 0x02, 0x0e }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */
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{ { 0x22, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT },
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{ { 0x22, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */
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/* Dell Latitude E5500, E6400, E6500, Precision M4400 */
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{ { 0x62, 0x02, 0x14 }, ALPS_PROTO_V2, 0xcf, 0xcf,
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{ { 0x62, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf,
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ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },
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{ { 0x73, 0x02, 0x50 }, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */
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{ { 0x52, 0x01, 0x14 }, ALPS_PROTO_V2, 0xff, 0xff,
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ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, /* Toshiba Tecra A11-11L */
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{ { 0x73, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */
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{ { 0x52, 0x01, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff,
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ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, /* Toshiba Tecra A11-11L */
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{ { 0x73, 0x02, 0x64 }, 0x9b, ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT },
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{ { 0x73, 0x02, 0x64 }, 0x9d, ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT },
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{ { 0x73, 0x02, 0x64 }, 0x8a, ALPS_PROTO_V4, 0x8f, 0x8f, 0 },
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};
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/*
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@ -101,7 +148,7 @@ static void alps_report_buttons(struct psmouse *psmouse,
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input_sync(dev2);
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}
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static void alps_process_packet(struct psmouse *psmouse)
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static void alps_process_packet_v1_v2(struct psmouse *psmouse)
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{
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struct alps_data *priv = psmouse->private;
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const struct alps_model_info *model = priv->i;
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@ -203,6 +250,224 @@ static void alps_process_packet(struct psmouse *psmouse)
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input_sync(dev);
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}
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static void alps_process_trackstick_packet_v3(struct psmouse *psmouse)
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{
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struct alps_data *priv = psmouse->private;
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unsigned char *packet = psmouse->packet;
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struct input_dev *dev = priv->dev2;
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int x, y, z, left, right, middle;
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/* Sanity check packet */
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if (!(packet[0] & 0x40)) {
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psmouse_dbg(psmouse, "Bad trackstick packet, discarding\n");
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return;
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}
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/*
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* There's a special packet that seems to indicate the end
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* of a stream of trackstick data. Filter these out.
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*/
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if (packet[1] == 0x7f && packet[2] == 0x7f && packet[4] == 0x7f)
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return;
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x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f));
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y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f));
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z = (packet[4] & 0x7c) >> 2;
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/*
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* The x and y values tend to be quite large, and when used
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* alone the trackstick is difficult to use. Scale them down
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* to compensate.
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*/
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x /= 8;
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y /= 8;
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input_report_rel(dev, REL_X, x);
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input_report_rel(dev, REL_Y, -y);
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/*
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* Most ALPS models report the trackstick buttons in the touchpad
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* packets, but a few report them here. No reliable way has been
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* found to differentiate between the models upfront, so we enable
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* the quirk in response to seeing a button press in the trackstick
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* packet.
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*/
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left = packet[3] & 0x01;
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right = packet[3] & 0x02;
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middle = packet[3] & 0x04;
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if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) &&
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(left || right || middle))
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priv->quirks |= ALPS_QUIRK_TRACKSTICK_BUTTONS;
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if (priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) {
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input_report_key(dev, BTN_LEFT, left);
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input_report_key(dev, BTN_RIGHT, right);
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input_report_key(dev, BTN_MIDDLE, middle);
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}
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input_sync(dev);
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return;
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}
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static void alps_process_touchpad_packet_v3(struct psmouse *psmouse)
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{
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struct alps_data *priv = psmouse->private;
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unsigned char *packet = psmouse->packet;
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struct input_dev *dev = psmouse->dev;
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struct input_dev *dev2 = priv->dev2;
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int x, y, z;
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int left, right, middle;
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/*
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* There's no single feature of touchpad position and bitmap
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* packets that can be used to distinguish between them. We
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* rely on the fact that a bitmap packet should always follow
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* a position packet with bit 6 of packet[4] set.
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*/
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if (priv->multi_packet) {
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priv->multi_packet = 0;
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/*
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* Sometimes a position packet will indicate a multi-packet
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* sequence, but then what follows is another position
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* packet. Check for this, and when it happens process the
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* position packet as usual.
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*/
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if (packet[0] & 0x40) {
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/*
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* Bitmap packets are not yet supported, so for now
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* just ignore them.
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*/
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return;
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}
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}
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if (!priv->multi_packet && (packet[4] & 0x40))
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priv->multi_packet = 1;
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else
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priv->multi_packet = 0;
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left = packet[3] & 0x01;
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right = packet[3] & 0x02;
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middle = packet[3] & 0x04;
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x = ((packet[1] & 0x7f) << 4) | ((packet[4] & 0x30) >> 2) |
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((packet[0] & 0x30) >> 4);
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y = ((packet[2] & 0x7f) << 4) | (packet[4] & 0x0f);
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z = packet[5] & 0x7f;
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/*
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* Sometimes the hardware sends a single packet with z = 0
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* in the middle of a stream. Real releases generate packets
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* with x, y, and z all zero, so these seem to be flukes.
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* Ignore them.
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*/
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if (x && y && !z)
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return;
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if (z >= 64)
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input_report_key(dev, BTN_TOUCH, 1);
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else
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input_report_key(dev, BTN_TOUCH, 0);
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if (z > 0) {
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input_report_abs(dev, ABS_X, x);
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input_report_abs(dev, ABS_Y, y);
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}
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input_report_abs(dev, ABS_PRESSURE, z);
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input_report_key(dev, BTN_TOOL_FINGER, z > 0);
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input_report_key(dev, BTN_LEFT, left);
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input_report_key(dev, BTN_RIGHT, right);
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input_report_key(dev, BTN_MIDDLE, middle);
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input_sync(dev);
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if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) {
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left = packet[3] & 0x10;
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right = packet[3] & 0x20;
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middle = packet[3] & 0x40;
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input_report_key(dev2, BTN_LEFT, left);
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input_report_key(dev2, BTN_RIGHT, right);
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input_report_key(dev2, BTN_MIDDLE, middle);
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input_sync(dev2);
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}
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}
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static void alps_process_packet_v3(struct psmouse *psmouse)
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{
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unsigned char *packet = psmouse->packet;
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/*
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* v3 protocol packets come in three types, two representing
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* touchpad data and one representing trackstick data.
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* Trackstick packets seem to be distinguished by always
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* having 0x3f in the last byte. This value has never been
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* observed in the last byte of either of the other types
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* of packets.
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*/
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if (packet[5] == 0x3f) {
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alps_process_trackstick_packet_v3(psmouse);
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return;
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}
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alps_process_touchpad_packet_v3(psmouse);
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}
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static void alps_process_packet_v4(struct psmouse *psmouse)
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{
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unsigned char *packet = psmouse->packet;
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struct input_dev *dev = psmouse->dev;
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int x, y, z;
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int left, right;
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left = packet[4] & 0x01;
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right = packet[4] & 0x02;
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x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) |
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((packet[0] & 0x30) >> 4);
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y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f);
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z = packet[5] & 0x7f;
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if (z >= 64)
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input_report_key(dev, BTN_TOUCH, 1);
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else
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input_report_key(dev, BTN_TOUCH, 0);
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if (z > 0) {
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input_report_abs(dev, ABS_X, x);
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input_report_abs(dev, ABS_Y, y);
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}
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input_report_abs(dev, ABS_PRESSURE, z);
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input_report_key(dev, BTN_TOOL_FINGER, z > 0);
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input_report_key(dev, BTN_LEFT, left);
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input_report_key(dev, BTN_RIGHT, right);
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input_sync(dev);
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}
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static void alps_process_packet(struct psmouse *psmouse)
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{
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struct alps_data *priv = psmouse->private;
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const struct alps_model_info *model = priv->i;
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switch (model->proto_version) {
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case ALPS_PROTO_V1:
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case ALPS_PROTO_V2:
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alps_process_packet_v1_v2(psmouse);
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break;
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case ALPS_PROTO_V3:
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alps_process_packet_v3(psmouse);
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break;
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case ALPS_PROTO_V4:
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alps_process_packet_v4(psmouse);
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break;
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}
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}
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static void alps_report_bare_ps2_packet(struct psmouse *psmouse,
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unsigned char packet[],
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bool report_buttons)
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@ -376,11 +641,127 @@ static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
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return PSMOUSE_GOOD_DATA;
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}
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|
||||
static int alps_command_mode_send_nibble(struct psmouse *psmouse, int nibble)
|
||||
{
|
||||
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
||||
struct alps_data *priv = psmouse->private;
|
||||
int command;
|
||||
unsigned char *param;
|
||||
unsigned char dummy[4];
|
||||
|
||||
BUG_ON(nibble > 0xf);
|
||||
|
||||
command = priv->nibble_commands[nibble].command;
|
||||
param = (command & 0x0f00) ?
|
||||
dummy : (unsigned char *)&priv->nibble_commands[nibble].data;
|
||||
|
||||
if (ps2_command(ps2dev, param, command))
|
||||
return -1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int alps_command_mode_set_addr(struct psmouse *psmouse, int addr)
|
||||
{
|
||||
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
||||
struct alps_data *priv = psmouse->private;
|
||||
int i, nibble;
|
||||
|
||||
if (ps2_command(ps2dev, NULL, priv->addr_command))
|
||||
return -1;
|
||||
|
||||
for (i = 12; i >= 0; i -= 4) {
|
||||
nibble = (addr >> i) & 0xf;
|
||||
if (alps_command_mode_send_nibble(psmouse, nibble))
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __alps_command_mode_read_reg(struct psmouse *psmouse, int addr)
|
||||
{
|
||||
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
||||
unsigned char param[4];
|
||||
|
||||
if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
|
||||
return -1;
|
||||
|
||||
/*
|
||||
* The address being read is returned in the first two bytes
|
||||
* of the result. Check that this address matches the expected
|
||||
* address.
|
||||
*/
|
||||
if (addr != ((param[0] << 8) | param[1]))
|
||||
return -1;
|
||||
|
||||
return param[2];
|
||||
}
|
||||
|
||||
static int alps_command_mode_read_reg(struct psmouse *psmouse, int addr)
|
||||
{
|
||||
if (alps_command_mode_set_addr(psmouse, addr))
|
||||
return -1;
|
||||
return __alps_command_mode_read_reg(psmouse, addr);
|
||||
}
|
||||
|
||||
static int __alps_command_mode_write_reg(struct psmouse *psmouse, u8 value)
|
||||
{
|
||||
if (alps_command_mode_send_nibble(psmouse, (value >> 4) & 0xf))
|
||||
return -1;
|
||||
if (alps_command_mode_send_nibble(psmouse, value & 0xf))
|
||||
return -1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int alps_command_mode_write_reg(struct psmouse *psmouse, int addr,
|
||||
u8 value)
|
||||
{
|
||||
if (alps_command_mode_set_addr(psmouse, addr))
|
||||
return -1;
|
||||
return __alps_command_mode_write_reg(psmouse, value);
|
||||
}
|
||||
|
||||
static int alps_enter_command_mode(struct psmouse *psmouse,
|
||||
unsigned char *resp)
|
||||
{
|
||||
unsigned char param[4];
|
||||
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
||||
|
||||
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) ||
|
||||
ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) ||
|
||||
ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) ||
|
||||
ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) {
|
||||
psmouse_err(psmouse, "failed to enter command mode\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (param[0] != 0x88 && param[1] != 0x07) {
|
||||
psmouse_dbg(psmouse,
|
||||
"unknown response while entering command mode: %2.2x %2.2x %2.2x\n",
|
||||
param[0], param[1], param[2]);
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (resp)
|
||||
*resp = param[2];
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline int alps_exit_command_mode(struct psmouse *psmouse)
|
||||
{
|
||||
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
||||
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM))
|
||||
return -1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
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];
|
||||
const struct alps_model_info *model = NULL;
|
||||
int i;
|
||||
|
||||
/*
|
||||
@ -428,12 +809,41 @@ static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int
|
||||
*version = (param[0] << 8) | (param[1] << 4) | i;
|
||||
}
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(alps_model_data); 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;
|
||||
sizeof(alps_model_data[i].signature))) {
|
||||
model = alps_model_data + i;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return NULL;
|
||||
if (model && model->proto_version > ALPS_PROTO_V2) {
|
||||
/*
|
||||
* Need to check command mode response to identify
|
||||
* model
|
||||
*/
|
||||
model = NULL;
|
||||
if (alps_enter_command_mode(psmouse, param)) {
|
||||
psmouse_warn(psmouse,
|
||||
"touchpad failed to enter command mode\n");
|
||||
} else {
|
||||
for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) {
|
||||
if (alps_model_data[i].proto_version > ALPS_PROTO_V2 &&
|
||||
alps_model_data[i].command_mode_resp == param[0]) {
|
||||
model = alps_model_data + i;
|
||||
break;
|
||||
}
|
||||
}
|
||||
alps_exit_command_mode(psmouse);
|
||||
|
||||
if (!model)
|
||||
psmouse_dbg(psmouse,
|
||||
"Unknown command mode response %2.2x\n",
|
||||
param[0]);
|
||||
}
|
||||
}
|
||||
|
||||
return model;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -441,7 +851,7 @@ static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int
|
||||
* 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)
|
||||
static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable)
|
||||
{
|
||||
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
||||
int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11;
|
||||
@ -458,7 +868,7 @@ static int alps_passthrough_mode(struct psmouse *psmouse, bool enable)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int alps_absolute_mode(struct psmouse *psmouse)
|
||||
static int alps_absolute_mode_v1_v2(struct psmouse *psmouse)
|
||||
{
|
||||
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
||||
|
||||
@ -533,13 +943,13 @@ static int alps_poll(struct psmouse *psmouse)
|
||||
bool poll_failed;
|
||||
|
||||
if (priv->i->flags & ALPS_PASS)
|
||||
alps_passthrough_mode(psmouse, true);
|
||||
alps_passthrough_mode_v2(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);
|
||||
alps_passthrough_mode_v2(psmouse, false);
|
||||
|
||||
if (poll_failed || (buf[0] & priv->i->mask0) != priv->i->byte0)
|
||||
return -1;
|
||||
@ -556,13 +966,13 @@ static int alps_poll(struct psmouse *psmouse)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int alps_hw_init(struct psmouse *psmouse)
|
||||
static int alps_hw_init_v1_v2(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)) {
|
||||
alps_passthrough_mode_v2(psmouse, true)) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
@ -571,13 +981,13 @@ static int alps_hw_init(struct psmouse *psmouse)
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (alps_absolute_mode(psmouse)) {
|
||||
if (alps_absolute_mode_v1_v2(psmouse)) {
|
||||
psmouse_err(psmouse, "Failed to enable absolute mode\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
if ((model->flags & ALPS_PASS) &&
|
||||
alps_passthrough_mode(psmouse, false)) {
|
||||
alps_passthrough_mode_v2(psmouse, false)) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
@ -590,6 +1000,297 @@ static int alps_hw_init(struct psmouse *psmouse)
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Enable or disable passthrough mode to the trackstick. Must be in
|
||||
* command mode when calling this function.
|
||||
*/
|
||||
static int alps_passthrough_mode_v3(struct psmouse *psmouse, bool enable)
|
||||
{
|
||||
int reg_val;
|
||||
|
||||
reg_val = alps_command_mode_read_reg(psmouse, 0x0008);
|
||||
if (reg_val == -1)
|
||||
return -1;
|
||||
|
||||
if (enable)
|
||||
reg_val |= 0x01;
|
||||
else
|
||||
reg_val &= ~0x01;
|
||||
|
||||
if (__alps_command_mode_write_reg(psmouse, reg_val))
|
||||
return -1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Must be in command mode when calling this function */
|
||||
static int alps_absolute_mode_v3(struct psmouse *psmouse)
|
||||
{
|
||||
int reg_val;
|
||||
|
||||
reg_val = alps_command_mode_read_reg(psmouse, 0x0004);
|
||||
if (reg_val == -1)
|
||||
return -1;
|
||||
|
||||
reg_val |= 0x06;
|
||||
if (__alps_command_mode_write_reg(psmouse, reg_val))
|
||||
return -1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int alps_hw_init_v3(struct psmouse *psmouse)
|
||||
{
|
||||
struct alps_data *priv = psmouse->private;
|
||||
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
||||
int reg_val;
|
||||
unsigned char param[4];
|
||||
|
||||
priv->nibble_commands = alps_v3_nibble_commands;
|
||||
priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
|
||||
|
||||
if (alps_enter_command_mode(psmouse, NULL))
|
||||
goto error;
|
||||
|
||||
/* Check for trackstick */
|
||||
reg_val = alps_command_mode_read_reg(psmouse, 0x0008);
|
||||
if (reg_val == -1)
|
||||
goto error;
|
||||
if (reg_val & 0x80) {
|
||||
if (alps_passthrough_mode_v3(psmouse, true))
|
||||
goto error;
|
||||
if (alps_exit_command_mode(psmouse))
|
||||
goto error;
|
||||
|
||||
/*
|
||||
* E7 report for the trackstick
|
||||
*
|
||||
* There have been reports of failures to seem to trace back
|
||||
* to the above trackstick check failing. When these occur
|
||||
* this E7 report fails, so when that happens we continue
|
||||
* with the assumption that there isn't a trackstick after
|
||||
* all.
|
||||
*/
|
||||
param[0] = 0x64;
|
||||
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
|
||||
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
|
||||
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
|
||||
ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) {
|
||||
psmouse_warn(psmouse, "trackstick E7 report failed\n");
|
||||
} else {
|
||||
psmouse_dbg(psmouse,
|
||||
"trackstick E7 report: %2.2x %2.2x %2.2x\n",
|
||||
param[0], param[1], param[2]);
|
||||
|
||||
/*
|
||||
* Not sure what this does, but it is absolutely
|
||||
* essential. Without it, the touchpad does not
|
||||
* work at all and the trackstick just emits normal
|
||||
* PS/2 packets.
|
||||
*/
|
||||
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
|
||||
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
|
||||
ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
|
||||
alps_command_mode_send_nibble(psmouse, 0x9) ||
|
||||
alps_command_mode_send_nibble(psmouse, 0x4)) {
|
||||
psmouse_err(psmouse,
|
||||
"Error sending magic E6 sequence\n");
|
||||
goto error_passthrough;
|
||||
}
|
||||
}
|
||||
|
||||
if (alps_enter_command_mode(psmouse, NULL))
|
||||
goto error_passthrough;
|
||||
if (alps_passthrough_mode_v3(psmouse, false))
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (alps_absolute_mode_v3(psmouse)) {
|
||||
psmouse_err(psmouse, "Failed to enter absolute mode\n");
|
||||
goto error;
|
||||
}
|
||||
|
||||
reg_val = alps_command_mode_read_reg(psmouse, 0x0006);
|
||||
if (reg_val == -1)
|
||||
goto error;
|
||||
if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01))
|
||||
goto error;
|
||||
|
||||
reg_val = alps_command_mode_read_reg(psmouse, 0x0007);
|
||||
if (reg_val == -1)
|
||||
goto error;
|
||||
if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01))
|
||||
goto error;
|
||||
|
||||
if (alps_command_mode_read_reg(psmouse, 0x0144) == -1)
|
||||
goto error;
|
||||
if (__alps_command_mode_write_reg(psmouse, 0x04))
|
||||
goto error;
|
||||
|
||||
if (alps_command_mode_read_reg(psmouse, 0x0159) == -1)
|
||||
goto error;
|
||||
if (__alps_command_mode_write_reg(psmouse, 0x03))
|
||||
goto error;
|
||||
|
||||
if (alps_command_mode_read_reg(psmouse, 0x0163) == -1)
|
||||
goto error;
|
||||
if (alps_command_mode_write_reg(psmouse, 0x0163, 0x03))
|
||||
goto error;
|
||||
|
||||
if (alps_command_mode_read_reg(psmouse, 0x0162) == -1)
|
||||
goto error;
|
||||
if (alps_command_mode_write_reg(psmouse, 0x0162, 0x04))
|
||||
goto error;
|
||||
|
||||
/*
|
||||
* This ensures the trackstick packets are in the format
|
||||
* supported by this driver. If bit 1 isn't set the packet
|
||||
* format is different.
|
||||
*/
|
||||
if (alps_command_mode_write_reg(psmouse, 0x0008, 0x82))
|
||||
goto error;
|
||||
|
||||
alps_exit_command_mode(psmouse);
|
||||
|
||||
/* Set rate and enable data reporting */
|
||||
param[0] = 0x64;
|
||||
if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) ||
|
||||
ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) {
|
||||
psmouse_err(psmouse, "Failed to enable data reporting\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
error_passthrough:
|
||||
/* Something failed while in passthrough mode, so try to get out */
|
||||
if (!alps_enter_command_mode(psmouse, NULL))
|
||||
alps_passthrough_mode_v3(psmouse, false);
|
||||
error:
|
||||
/*
|
||||
* Leaving the touchpad in command mode will essentially render
|
||||
* it unusable until the machine reboots, so exit it here just
|
||||
* to be safe
|
||||
*/
|
||||
alps_exit_command_mode(psmouse);
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* Must be in command mode when calling this function */
|
||||
static int alps_absolute_mode_v4(struct psmouse *psmouse)
|
||||
{
|
||||
int reg_val;
|
||||
|
||||
reg_val = alps_command_mode_read_reg(psmouse, 0x0004);
|
||||
if (reg_val == -1)
|
||||
return -1;
|
||||
|
||||
reg_val |= 0x02;
|
||||
if (__alps_command_mode_write_reg(psmouse, reg_val))
|
||||
return -1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int alps_hw_init_v4(struct psmouse *psmouse)
|
||||
{
|
||||
struct alps_data *priv = psmouse->private;
|
||||
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
||||
unsigned char param[4];
|
||||
|
||||
priv->nibble_commands = alps_v4_nibble_commands;
|
||||
priv->addr_command = PSMOUSE_CMD_DISABLE;
|
||||
|
||||
if (alps_enter_command_mode(psmouse, NULL))
|
||||
goto error;
|
||||
|
||||
if (alps_absolute_mode_v4(psmouse)) {
|
||||
psmouse_err(psmouse, "Failed to enter absolute mode\n");
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (alps_command_mode_write_reg(psmouse, 0x0007, 0x8c))
|
||||
goto error;
|
||||
|
||||
if (alps_command_mode_write_reg(psmouse, 0x0149, 0x03))
|
||||
goto error;
|
||||
|
||||
if (alps_command_mode_write_reg(psmouse, 0x0160, 0x03))
|
||||
goto error;
|
||||
|
||||
if (alps_command_mode_write_reg(psmouse, 0x017f, 0x15))
|
||||
goto error;
|
||||
|
||||
if (alps_command_mode_write_reg(psmouse, 0x0151, 0x01))
|
||||
goto error;
|
||||
|
||||
if (alps_command_mode_write_reg(psmouse, 0x0168, 0x03))
|
||||
goto error;
|
||||
|
||||
if (alps_command_mode_write_reg(psmouse, 0x014a, 0x03))
|
||||
goto error;
|
||||
|
||||
if (alps_command_mode_write_reg(psmouse, 0x0161, 0x03))
|
||||
goto error;
|
||||
|
||||
alps_exit_command_mode(psmouse);
|
||||
|
||||
/*
|
||||
* This sequence changes the output from a 9-byte to an
|
||||
* 8-byte format. All the same data seems to be present,
|
||||
* just in a more compact format.
|
||||
*/
|
||||
param[0] = 0xc8;
|
||||
param[1] = 0x64;
|
||||
param[2] = 0x50;
|
||||
if (ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) ||
|
||||
ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE) ||
|
||||
ps2_command(ps2dev, ¶m[2], PSMOUSE_CMD_SETRATE) ||
|
||||
ps2_command(ps2dev, param, PSMOUSE_CMD_GETID))
|
||||
return -1;
|
||||
|
||||
/* Set rate and enable data reporting */
|
||||
param[0] = 0x64;
|
||||
if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) ||
|
||||
ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) {
|
||||
psmouse_err(psmouse, "Failed to enable data reporting\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
error:
|
||||
/*
|
||||
* Leaving the touchpad in command mode will essentially render
|
||||
* it unusable until the machine reboots, so exit it here just
|
||||
* to be safe
|
||||
*/
|
||||
alps_exit_command_mode(psmouse);
|
||||
return -1;
|
||||
}
|
||||
|
||||
static int alps_hw_init(struct psmouse *psmouse)
|
||||
{
|
||||
struct alps_data *priv = psmouse->private;
|
||||
const struct alps_model_info *model = priv->i;
|
||||
int ret = -1;
|
||||
|
||||
switch (model->proto_version) {
|
||||
case ALPS_PROTO_V1:
|
||||
case ALPS_PROTO_V2:
|
||||
ret = alps_hw_init_v1_v2(psmouse);
|
||||
break;
|
||||
case ALPS_PROTO_V3:
|
||||
ret = alps_hw_init_v3(psmouse);
|
||||
break;
|
||||
case ALPS_PROTO_V4:
|
||||
ret = alps_hw_init_v4(psmouse);
|
||||
break;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int alps_reconnect(struct psmouse *psmouse)
|
||||
{
|
||||
const struct alps_model_info *model;
|
||||
@ -630,6 +1331,8 @@ int alps_init(struct psmouse *psmouse)
|
||||
|
||||
psmouse->private = priv;
|
||||
|
||||
psmouse_reset(psmouse);
|
||||
|
||||
model = alps_get_model(psmouse, &version);
|
||||
if (!model)
|
||||
goto init_fail;
|
||||
@ -657,8 +1360,20 @@ int alps_init(struct psmouse *psmouse)
|
||||
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);
|
||||
|
||||
switch (model->proto_version) {
|
||||
case ALPS_PROTO_V1:
|
||||
case ALPS_PROTO_V2:
|
||||
input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0);
|
||||
input_set_abs_params(dev1, ABS_Y, 0, 767, 0, 0);
|
||||
break;
|
||||
case ALPS_PROTO_V3:
|
||||
case ALPS_PROTO_V4:
|
||||
input_set_abs_params(dev1, ABS_X, 0, 2000, 0, 0);
|
||||
input_set_abs_params(dev1, ABS_Y, 0, 1400, 0, 0);
|
||||
break;
|
||||
}
|
||||
|
||||
input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
|
||||
|
||||
if (model->flags & ALPS_WHEEL) {
|
||||
@ -701,7 +1416,7 @@ int alps_init(struct psmouse *psmouse)
|
||||
psmouse->poll = alps_poll;
|
||||
psmouse->disconnect = alps_disconnect;
|
||||
psmouse->reconnect = alps_reconnect;
|
||||
psmouse->pktsize = 6;
|
||||
psmouse->pktsize = model->proto_version == ALPS_PROTO_V4 ? 8 : 6;
|
||||
|
||||
/* We are having trouble resyncing ALPS touchpads so disable it for now */
|
||||
psmouse->resync_time = 0;
|
||||
|
||||
@ -14,22 +14,36 @@
|
||||
|
||||
#define ALPS_PROTO_V1 0
|
||||
#define ALPS_PROTO_V2 1
|
||||
#define ALPS_PROTO_V3 2
|
||||
#define ALPS_PROTO_V4 3
|
||||
|
||||
struct alps_model_info {
|
||||
unsigned char signature[3];
|
||||
unsigned char command_mode_resp; /* v3/v4 only */
|
||||
unsigned char proto_version;
|
||||
unsigned char byte0, mask0;
|
||||
unsigned char flags;
|
||||
};
|
||||
|
||||
struct alps_nibble_commands {
|
||||
int command;
|
||||
unsigned char data;
|
||||
};
|
||||
|
||||
struct alps_data {
|
||||
struct input_dev *dev2; /* Relative device */
|
||||
char phys[32]; /* Phys */
|
||||
const struct alps_model_info *i;/* Info */
|
||||
const struct alps_nibble_commands *nibble_commands;
|
||||
int addr_command; /* Command to set register address */
|
||||
int prev_fin; /* Finger bit from previous packet */
|
||||
int multi_packet; /* Multi-packet data in progress */
|
||||
u8 quirks;
|
||||
struct timer_list timer;
|
||||
};
|
||||
|
||||
#define ALPS_QUIRK_TRACKSTICK_BUTTONS 1 /* trakcstick buttons in trackstick packet */
|
||||
|
||||
#ifdef CONFIG_MOUSE_PS2_ALPS
|
||||
int alps_detect(struct psmouse *psmouse, bool set_properties);
|
||||
int alps_init(struct psmouse *psmouse);
|
||||
|
||||
@ -8,6 +8,7 @@
|
||||
#define PSMOUSE_CMD_SETSTREAM 0x00ea
|
||||
#define PSMOUSE_CMD_SETPOLL 0x00f0
|
||||
#define PSMOUSE_CMD_POLL 0x00eb /* caller sets number of bytes to receive */
|
||||
#define PSMOUSE_CMD_RESET_WRAP 0x00ec
|
||||
#define PSMOUSE_CMD_GETID 0x02f2
|
||||
#define PSMOUSE_CMD_SETRATE 0x10f3
|
||||
#define PSMOUSE_CMD_ENABLE 0x00f4
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user