1d2912cb1SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
21da177e4SLinus Torvalds /*
31da177e4SLinus Torvalds * Logitech PS/2++ mouse driver
41da177e4SLinus Torvalds *
51da177e4SLinus Torvalds * Copyright (c) 1999-2003 Vojtech Pavlik <vojtech@suse.cz>
61da177e4SLinus Torvalds * Copyright (c) 2003 Eric Wong <eric@yhbt.net>
71da177e4SLinus Torvalds */
81da177e4SLinus Torvalds
9592c352bSDmitry Torokhov #include <linux/bitops.h>
101da177e4SLinus Torvalds #include <linux/input.h>
111da177e4SLinus Torvalds #include <linux/serio.h>
121da177e4SLinus Torvalds #include <linux/libps2.h>
13592c352bSDmitry Torokhov #include <linux/types.h>
141da177e4SLinus Torvalds #include "psmouse.h"
151da177e4SLinus Torvalds #include "logips2pp.h"
161da177e4SLinus Torvalds
171da177e4SLinus Torvalds /* Logitech mouse types */
181da177e4SLinus Torvalds #define PS2PP_KIND_WHEEL 1
191da177e4SLinus Torvalds #define PS2PP_KIND_MX 2
201da177e4SLinus Torvalds #define PS2PP_KIND_TP3 3
214f8b05efSZbigniew Luszpinski #define PS2PP_KIND_TRACKMAN 4
221da177e4SLinus Torvalds
231da177e4SLinus Torvalds /* Logitech mouse features */
24592c352bSDmitry Torokhov #define PS2PP_WHEEL BIT(0)
25592c352bSDmitry Torokhov #define PS2PP_HWHEEL BIT(1)
26592c352bSDmitry Torokhov #define PS2PP_SIDE_BTN BIT(2)
27592c352bSDmitry Torokhov #define PS2PP_EXTRA_BTN BIT(3)
28592c352bSDmitry Torokhov #define PS2PP_TASK_BTN BIT(4)
29592c352bSDmitry Torokhov #define PS2PP_NAV_BTN BIT(5)
301da177e4SLinus Torvalds
311da177e4SLinus Torvalds struct ps2pp_info {
32e3882bb5SHelge Deller u8 model;
33e3882bb5SHelge Deller u8 kind;
34e3882bb5SHelge Deller u16 features;
351da177e4SLinus Torvalds };
361da177e4SLinus Torvalds
371da177e4SLinus Torvalds /*
381da177e4SLinus Torvalds * Process a PS2++ or PS2T++ packet.
391da177e4SLinus Torvalds */
401da177e4SLinus Torvalds
ps2pp_process_byte(struct psmouse * psmouse)417d12e780SDavid Howells static psmouse_ret_t ps2pp_process_byte(struct psmouse *psmouse)
421da177e4SLinus Torvalds {
432e5b636bSDmitry Torokhov struct input_dev *dev = psmouse->dev;
44592c352bSDmitry Torokhov u8 *packet = psmouse->packet;
451da177e4SLinus Torvalds
461da177e4SLinus Torvalds if (psmouse->pktcnt < 3)
471da177e4SLinus Torvalds return PSMOUSE_GOOD_DATA;
481da177e4SLinus Torvalds
491da177e4SLinus Torvalds /*
501da177e4SLinus Torvalds * Full packet accumulated, process it
511da177e4SLinus Torvalds */
521da177e4SLinus Torvalds
531da177e4SLinus Torvalds if ((packet[0] & 0x48) == 0x48 && (packet[1] & 0x02) == 0x02) {
541da177e4SLinus Torvalds
551da177e4SLinus Torvalds /* Logitech extended packet */
561da177e4SLinus Torvalds switch ((packet[1] >> 4) | (packet[0] & 0x30)) {
571da177e4SLinus Torvalds
581da177e4SLinus Torvalds case 0x0d: /* Mouse extra info */
591da177e4SLinus Torvalds
60592c352bSDmitry Torokhov input_report_rel(dev,
61592c352bSDmitry Torokhov packet[2] & 0x80 ? REL_HWHEEL : REL_WHEEL,
62592c352bSDmitry Torokhov -sign_extend32(packet[2], 3));
63592c352bSDmitry Torokhov input_report_key(dev, BTN_SIDE, packet[2] & BIT(4));
64592c352bSDmitry Torokhov input_report_key(dev, BTN_EXTRA, packet[2] & BIT(5));
651da177e4SLinus Torvalds
661da177e4SLinus Torvalds break;
671da177e4SLinus Torvalds
681da177e4SLinus Torvalds case 0x0e: /* buttons 4, 5, 6, 7, 8, 9, 10 info */
691da177e4SLinus Torvalds
70592c352bSDmitry Torokhov input_report_key(dev, BTN_SIDE, packet[2] & BIT(0));
71592c352bSDmitry Torokhov input_report_key(dev, BTN_EXTRA, packet[2] & BIT(1));
72592c352bSDmitry Torokhov input_report_key(dev, BTN_TASK, packet[2] & BIT(2));
73592c352bSDmitry Torokhov input_report_key(dev, BTN_BACK, packet[2] & BIT(3));
74592c352bSDmitry Torokhov input_report_key(dev, BTN_FORWARD, packet[2] & BIT(4));
751da177e4SLinus Torvalds
761da177e4SLinus Torvalds break;
771da177e4SLinus Torvalds
781da177e4SLinus Torvalds case 0x0f: /* TouchPad extra info */
791da177e4SLinus Torvalds
80592c352bSDmitry Torokhov input_report_rel(dev,
81592c352bSDmitry Torokhov packet[2] & 0x08 ? REL_HWHEEL : REL_WHEEL,
82592c352bSDmitry Torokhov -sign_extend32(packet[2] >> 4, 3));
83592c352bSDmitry Torokhov packet[0] = packet[2] | BIT(3);
841da177e4SLinus Torvalds break;
851da177e4SLinus Torvalds
861da177e4SLinus Torvalds default:
87b5d21704SDmitry Torokhov psmouse_dbg(psmouse,
88b5d21704SDmitry Torokhov "Received PS2++ packet #%x, but don't know how to handle.\n",
891da177e4SLinus Torvalds (packet[1] >> 4) | (packet[0] & 0x30));
90b5d21704SDmitry Torokhov break;
911da177e4SLinus Torvalds }
921ef85805SDmitry Torokhov
931ef85805SDmitry Torokhov psmouse_report_standard_buttons(dev, packet[0]);
941ef85805SDmitry Torokhov
951da177e4SLinus Torvalds } else {
961da177e4SLinus Torvalds /* Standard PS/2 motion data */
971ef85805SDmitry Torokhov psmouse_report_standard_packet(dev, packet);
981da177e4SLinus Torvalds }
991da177e4SLinus Torvalds
1001da177e4SLinus Torvalds input_sync(dev);
1011da177e4SLinus Torvalds
1021da177e4SLinus Torvalds return PSMOUSE_FULL_PACKET;
1031da177e4SLinus Torvalds
1041da177e4SLinus Torvalds }
1051da177e4SLinus Torvalds
1061da177e4SLinus Torvalds /*
1071da177e4SLinus Torvalds * ps2pp_cmd() sends a PS2++ command, sliced into two bit
1081da177e4SLinus Torvalds * pieces through the SETRES command. This is needed to send extended
1091da177e4SLinus Torvalds * commands to mice on notebooks that try to understand the PS/2 protocol
1101da177e4SLinus Torvalds * Ugly.
1111da177e4SLinus Torvalds */
1121da177e4SLinus Torvalds
ps2pp_cmd(struct psmouse * psmouse,u8 * param,u8 command)113592c352bSDmitry Torokhov static int ps2pp_cmd(struct psmouse *psmouse, u8 *param, u8 command)
1141da177e4SLinus Torvalds {
115592c352bSDmitry Torokhov int error;
1161da177e4SLinus Torvalds
11708be954bSDmitry Torokhov error = ps2_sliced_command(&psmouse->ps2dev, command);
118592c352bSDmitry Torokhov if (error)
119592c352bSDmitry Torokhov return error;
120592c352bSDmitry Torokhov
121592c352bSDmitry Torokhov error = ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_POLL | 0x0300);
122592c352bSDmitry Torokhov if (error)
123592c352bSDmitry Torokhov return error;
1241da177e4SLinus Torvalds
1251da177e4SLinus Torvalds return 0;
1261da177e4SLinus Torvalds }
1271da177e4SLinus Torvalds
1281da177e4SLinus Torvalds /*
1291da177e4SLinus Torvalds * SmartScroll / CruiseControl for some newer Logitech mice Defaults to
1301da177e4SLinus Torvalds * enabled if we do nothing to it. Of course I put this in because I want it
1311da177e4SLinus Torvalds * disabled :P
1321da177e4SLinus Torvalds * 1 - enabled (if previously disabled, also default)
1331da177e4SLinus Torvalds * 0 - disabled
1341da177e4SLinus Torvalds */
1351da177e4SLinus Torvalds
ps2pp_set_smartscroll(struct psmouse * psmouse,bool smartscroll)136b7802c5cSDmitry Torokhov static void ps2pp_set_smartscroll(struct psmouse *psmouse, bool smartscroll)
1371da177e4SLinus Torvalds {
1381da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev;
139592c352bSDmitry Torokhov u8 param[4];
1401da177e4SLinus Torvalds
1411da177e4SLinus Torvalds ps2pp_cmd(psmouse, param, 0x32);
1421da177e4SLinus Torvalds
1431da177e4SLinus Torvalds param[0] = 0;
1441da177e4SLinus Torvalds ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
1451da177e4SLinus Torvalds ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
1461da177e4SLinus Torvalds ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
1471da177e4SLinus Torvalds
1481da177e4SLinus Torvalds param[0] = smartscroll;
1491da177e4SLinus Torvalds ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
1501da177e4SLinus Torvalds }
1511da177e4SLinus Torvalds
ps2pp_attr_show_smartscroll(struct psmouse * psmouse,void * data,char * buf)152b7802c5cSDmitry Torokhov static ssize_t ps2pp_attr_show_smartscroll(struct psmouse *psmouse,
153b7802c5cSDmitry Torokhov void *data, char *buf)
1541da177e4SLinus Torvalds {
155b7802c5cSDmitry Torokhov return sprintf(buf, "%d\n", psmouse->smartscroll);
1561da177e4SLinus Torvalds }
1571da177e4SLinus Torvalds
ps2pp_attr_set_smartscroll(struct psmouse * psmouse,void * data,const char * buf,size_t count)158b7802c5cSDmitry Torokhov static ssize_t ps2pp_attr_set_smartscroll(struct psmouse *psmouse, void *data,
159b7802c5cSDmitry Torokhov const char *buf, size_t count)
1601da177e4SLinus Torvalds {
16176496e7aSJJ Ding unsigned int value;
16276496e7aSJJ Ding int err;
1631da177e4SLinus Torvalds
16476496e7aSJJ Ding err = kstrtouint(buf, 10, &value);
16576496e7aSJJ Ding if (err)
16676496e7aSJJ Ding return err;
16776496e7aSJJ Ding
16876496e7aSJJ Ding if (value > 1)
1691da177e4SLinus Torvalds return -EINVAL;
1701da177e4SLinus Torvalds
1711da177e4SLinus Torvalds ps2pp_set_smartscroll(psmouse, value);
1721da177e4SLinus Torvalds psmouse->smartscroll = value;
1731da177e4SLinus Torvalds return count;
1741da177e4SLinus Torvalds }
1751da177e4SLinus Torvalds
176cfe9e888SDmitry Torokhov PSMOUSE_DEFINE_ATTR(smartscroll, S_IWUSR | S_IRUGO, NULL,
177cfe9e888SDmitry Torokhov ps2pp_attr_show_smartscroll, ps2pp_attr_set_smartscroll);
1781da177e4SLinus Torvalds
1791da177e4SLinus Torvalds /*
1801da177e4SLinus Torvalds * Support 800 dpi resolution _only_ if the user wants it (there are good
1811da177e4SLinus Torvalds * reasons to not use it even if the mouse supports it, and of course there are
1821da177e4SLinus Torvalds * also good reasons to use it, let the user decide).
1831da177e4SLinus Torvalds */
1841da177e4SLinus Torvalds
ps2pp_set_resolution(struct psmouse * psmouse,unsigned int resolution)185592c352bSDmitry Torokhov static void ps2pp_set_resolution(struct psmouse *psmouse,
186592c352bSDmitry Torokhov unsigned int resolution)
1871da177e4SLinus Torvalds {
1881da177e4SLinus Torvalds if (resolution > 400) {
1891da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev;
190592c352bSDmitry Torokhov u8 param = 3;
1911da177e4SLinus Torvalds
1921da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
1931da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
1941da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
1951da177e4SLinus Torvalds ps2_command(ps2dev, ¶m, PSMOUSE_CMD_SETRES);
1961da177e4SLinus Torvalds psmouse->resolution = 800;
1971da177e4SLinus Torvalds } else
1981da177e4SLinus Torvalds psmouse_set_resolution(psmouse, resolution);
1991da177e4SLinus Torvalds }
2001da177e4SLinus Torvalds
ps2pp_disconnect(struct psmouse * psmouse)2011da177e4SLinus Torvalds static void ps2pp_disconnect(struct psmouse *psmouse)
2021da177e4SLinus Torvalds {
203592c352bSDmitry Torokhov device_remove_file(&psmouse->ps2dev.serio->dev,
204592c352bSDmitry Torokhov &psmouse_attr_smartscroll.dattr);
2051da177e4SLinus Torvalds }
2061da177e4SLinus Torvalds
get_model_info(unsigned char model)207e3882bb5SHelge Deller static const struct ps2pp_info *get_model_info(unsigned char model)
2081da177e4SLinus Torvalds {
209e3882bb5SHelge Deller static const struct ps2pp_info ps2pp_list[] = {
21021298f71SDmitry Torokhov { 1, 0, 0 }, /* Simple 2-button mouse */
2111da177e4SLinus Torvalds { 12, 0, PS2PP_SIDE_BTN},
2121da177e4SLinus Torvalds { 13, 0, 0 },
2131da177e4SLinus Torvalds { 15, PS2PP_KIND_MX, /* MX1000 */
2141da177e4SLinus Torvalds PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
2151da177e4SLinus Torvalds PS2PP_EXTRA_BTN | PS2PP_NAV_BTN | PS2PP_HWHEEL },
2161da177e4SLinus Torvalds { 40, 0, PS2PP_SIDE_BTN },
2171da177e4SLinus Torvalds { 41, 0, PS2PP_SIDE_BTN },
2181da177e4SLinus Torvalds { 42, 0, PS2PP_SIDE_BTN },
2191da177e4SLinus Torvalds { 43, 0, PS2PP_SIDE_BTN },
2201da177e4SLinus Torvalds { 50, 0, 0 },
2211da177e4SLinus Torvalds { 51, 0, 0 },
2221da177e4SLinus Torvalds { 52, PS2PP_KIND_WHEEL, PS2PP_SIDE_BTN | PS2PP_WHEEL },
2231da177e4SLinus Torvalds { 53, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
224e3882bb5SHelge Deller { 56, PS2PP_KIND_WHEEL, PS2PP_SIDE_BTN | PS2PP_WHEEL }, /* Cordless MouseMan Wheel */
2251da177e4SLinus Torvalds { 61, PS2PP_KIND_MX, /* MX700 */
2261da177e4SLinus Torvalds PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
2271da177e4SLinus Torvalds PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
22825fd3176SGeert Uytterhoeven { 66, PS2PP_KIND_MX, /* MX3100 receiver */
22914a48b44SMirco Macrelli PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
23014a48b44SMirco Macrelli PS2PP_EXTRA_BTN | PS2PP_NAV_BTN | PS2PP_HWHEEL },
23118cc6757SPeter Samuelson { 72, PS2PP_KIND_TRACKMAN, 0 }, /* T-CH11: TrackMan Marble */
2324f7802d0SDmitry Torokhov { 73, PS2PP_KIND_TRACKMAN, PS2PP_SIDE_BTN }, /* TrackMan FX */
2331da177e4SLinus Torvalds { 75, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
2341da177e4SLinus Torvalds { 76, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
2354f8b05efSZbigniew Luszpinski { 79, PS2PP_KIND_TRACKMAN, PS2PP_WHEEL }, /* TrackMan with wheel */
2361da177e4SLinus Torvalds { 80, PS2PP_KIND_WHEEL, PS2PP_SIDE_BTN | PS2PP_WHEEL },
2371da177e4SLinus Torvalds { 81, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
2381da177e4SLinus Torvalds { 83, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
23958057b9eSJasper Spaans { 85, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
240d2b5ffcaSVojtech Pavlik { 86, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
2418ea3694fSDmitry Torokhov { 87, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
2421da177e4SLinus Torvalds { 88, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
2431da177e4SLinus Torvalds { 96, 0, 0 },
2441da177e4SLinus Torvalds { 97, PS2PP_KIND_TP3, PS2PP_WHEEL | PS2PP_HWHEEL },
24550f6dde0SMeelis Roos { 99, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
2461da177e4SLinus Torvalds { 100, PS2PP_KIND_MX, /* MX510 */
2471da177e4SLinus Torvalds PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
2481da177e4SLinus Torvalds PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
2490c19fcd8SRoberto Castagnola { 111, PS2PP_KIND_MX, PS2PP_WHEEL | PS2PP_SIDE_BTN }, /* MX300 reports task button as side */
2501da177e4SLinus Torvalds { 112, PS2PP_KIND_MX, /* MX500 */
2511da177e4SLinus Torvalds PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
2521da177e4SLinus Torvalds PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
2531da177e4SLinus Torvalds { 114, PS2PP_KIND_MX, /* MX310 */
2541da177e4SLinus Torvalds PS2PP_WHEEL | PS2PP_SIDE_BTN |
255e3882bb5SHelge Deller PS2PP_TASK_BTN | PS2PP_EXTRA_BTN }
2561da177e4SLinus Torvalds };
2571da177e4SLinus Torvalds int i;
2581da177e4SLinus Torvalds
259e3882bb5SHelge Deller for (i = 0; i < ARRAY_SIZE(ps2pp_list); i++)
2601da177e4SLinus Torvalds if (model == ps2pp_list[i].model)
2611da177e4SLinus Torvalds return &ps2pp_list[i];
2621da177e4SLinus Torvalds
2631da177e4SLinus Torvalds return NULL;
2641da177e4SLinus Torvalds }
2651da177e4SLinus Torvalds
2661da177e4SLinus Torvalds /*
2671da177e4SLinus Torvalds * Set up input device's properties based on the detected mouse model.
2681da177e4SLinus Torvalds */
2691da177e4SLinus Torvalds
ps2pp_set_model_properties(struct psmouse * psmouse,const struct ps2pp_info * model_info,bool using_ps2pp)270e3882bb5SHelge Deller static void ps2pp_set_model_properties(struct psmouse *psmouse,
271e3882bb5SHelge Deller const struct ps2pp_info *model_info,
272b7802c5cSDmitry Torokhov bool using_ps2pp)
2731da177e4SLinus Torvalds {
2742e5b636bSDmitry Torokhov struct input_dev *input_dev = psmouse->dev;
2752e5b636bSDmitry Torokhov
2761da177e4SLinus Torvalds if (model_info->features & PS2PP_SIDE_BTN)
277592c352bSDmitry Torokhov input_set_capability(input_dev, EV_KEY, BTN_SIDE);
2781da177e4SLinus Torvalds
2791da177e4SLinus Torvalds if (model_info->features & PS2PP_EXTRA_BTN)
280592c352bSDmitry Torokhov input_set_capability(input_dev, EV_KEY, BTN_EXTRA);
2811da177e4SLinus Torvalds
2821da177e4SLinus Torvalds if (model_info->features & PS2PP_TASK_BTN)
283592c352bSDmitry Torokhov input_set_capability(input_dev, EV_KEY, BTN_TASK);
2841da177e4SLinus Torvalds
2851da177e4SLinus Torvalds if (model_info->features & PS2PP_NAV_BTN) {
286592c352bSDmitry Torokhov input_set_capability(input_dev, EV_KEY, BTN_FORWARD);
287592c352bSDmitry Torokhov input_set_capability(input_dev, EV_KEY, BTN_BACK);
2881da177e4SLinus Torvalds }
2891da177e4SLinus Torvalds
2901da177e4SLinus Torvalds if (model_info->features & PS2PP_WHEEL)
291592c352bSDmitry Torokhov input_set_capability(input_dev, EV_REL, REL_WHEEL);
2921da177e4SLinus Torvalds
2931da177e4SLinus Torvalds if (model_info->features & PS2PP_HWHEEL)
294592c352bSDmitry Torokhov input_set_capability(input_dev, EV_REL, REL_HWHEEL);
2951da177e4SLinus Torvalds
2961da177e4SLinus Torvalds switch (model_info->kind) {
297a62f0d27SDmitry Torokhov
2981da177e4SLinus Torvalds case PS2PP_KIND_WHEEL:
2991da177e4SLinus Torvalds psmouse->name = "Wheel Mouse";
3001da177e4SLinus Torvalds break;
3011da177e4SLinus Torvalds
3021da177e4SLinus Torvalds case PS2PP_KIND_MX:
3031da177e4SLinus Torvalds psmouse->name = "MX Mouse";
3041da177e4SLinus Torvalds break;
3051da177e4SLinus Torvalds
3061da177e4SLinus Torvalds case PS2PP_KIND_TP3:
3071da177e4SLinus Torvalds psmouse->name = "TouchPad 3";
3081da177e4SLinus Torvalds break;
3091da177e4SLinus Torvalds
3104f8b05efSZbigniew Luszpinski case PS2PP_KIND_TRACKMAN:
3114f8b05efSZbigniew Luszpinski psmouse->name = "TrackMan";
3124f8b05efSZbigniew Luszpinski break;
3134f8b05efSZbigniew Luszpinski
3141da177e4SLinus Torvalds default:
3151da177e4SLinus Torvalds /*
3161da177e4SLinus Torvalds * Set name to "Mouse" only when using PS2++,
3171da177e4SLinus Torvalds * otherwise let other protocols define suitable
3181da177e4SLinus Torvalds * name
3191da177e4SLinus Torvalds */
3201da177e4SLinus Torvalds if (using_ps2pp)
3211da177e4SLinus Torvalds psmouse->name = "Mouse";
3221da177e4SLinus Torvalds break;
3231da177e4SLinus Torvalds }
3241da177e4SLinus Torvalds }
3251da177e4SLinus Torvalds
ps2pp_setup_protocol(struct psmouse * psmouse,const struct ps2pp_info * model_info)326592c352bSDmitry Torokhov static int ps2pp_setup_protocol(struct psmouse *psmouse,
327592c352bSDmitry Torokhov const struct ps2pp_info *model_info)
328592c352bSDmitry Torokhov {
329592c352bSDmitry Torokhov int error;
330592c352bSDmitry Torokhov
331592c352bSDmitry Torokhov psmouse->protocol_handler = ps2pp_process_byte;
332592c352bSDmitry Torokhov psmouse->pktsize = 3;
333592c352bSDmitry Torokhov
334592c352bSDmitry Torokhov if (model_info->kind != PS2PP_KIND_TP3) {
335592c352bSDmitry Torokhov psmouse->set_resolution = ps2pp_set_resolution;
336592c352bSDmitry Torokhov psmouse->disconnect = ps2pp_disconnect;
337592c352bSDmitry Torokhov
338592c352bSDmitry Torokhov error = device_create_file(&psmouse->ps2dev.serio->dev,
339592c352bSDmitry Torokhov &psmouse_attr_smartscroll.dattr);
340592c352bSDmitry Torokhov if (error) {
341592c352bSDmitry Torokhov psmouse_err(psmouse,
342592c352bSDmitry Torokhov "failed to create smartscroll sysfs attribute, error: %d\n",
343592c352bSDmitry Torokhov error);
344592c352bSDmitry Torokhov return error;
345592c352bSDmitry Torokhov }
346592c352bSDmitry Torokhov }
347592c352bSDmitry Torokhov
348592c352bSDmitry Torokhov return 0;
349592c352bSDmitry Torokhov }
3501da177e4SLinus Torvalds
3511da177e4SLinus Torvalds /*
3521da177e4SLinus Torvalds * Logitech magic init. Detect whether the mouse is a Logitech one
3531da177e4SLinus Torvalds * and its exact model and try turning on extended protocol for ones
3541da177e4SLinus Torvalds * that support it.
3551da177e4SLinus Torvalds */
3561da177e4SLinus Torvalds
ps2pp_detect(struct psmouse * psmouse,bool set_properties)357190e2031SDmitry Torokhov int ps2pp_detect(struct psmouse *psmouse, bool set_properties)
3581da177e4SLinus Torvalds {
3591da177e4SLinus Torvalds struct ps2dev *ps2dev = &psmouse->ps2dev;
360e3882bb5SHelge Deller const struct ps2pp_info *model_info;
361592c352bSDmitry Torokhov u8 param[4];
362592c352bSDmitry Torokhov u8 model, buttons;
363b7802c5cSDmitry Torokhov bool use_ps2pp = false;
3640fea0e9aSJeff Garzik int error;
3651da177e4SLinus Torvalds
3661da177e4SLinus Torvalds param[0] = 0;
3671da177e4SLinus Torvalds ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
3681da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
3691da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
3701da177e4SLinus Torvalds ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
3711da177e4SLinus Torvalds param[1] = 0;
3721da177e4SLinus Torvalds ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
3731da177e4SLinus Torvalds
3741da177e4SLinus Torvalds model = ((param[0] >> 4) & 0x07) | ((param[0] << 3) & 0x78);
3751da177e4SLinus Torvalds buttons = param[1];
3761da177e4SLinus Torvalds
377688897b0SDmitry Torokhov if (!model || !buttons)
378592c352bSDmitry Torokhov return -ENXIO;
379688897b0SDmitry Torokhov
380a62f0d27SDmitry Torokhov model_info = get_model_info(model);
381a62f0d27SDmitry Torokhov if (model_info) {
3821da177e4SLinus Torvalds
3831da177e4SLinus Torvalds /*
3841da177e4SLinus Torvalds * Do Logitech PS2++ / PS2T++ magic init.
3851da177e4SLinus Torvalds */
386e3882bb5SHelge Deller if (model_info->kind == PS2PP_KIND_TP3) { /* Touch Pad 3 */
3871da177e4SLinus Torvalds
3881da177e4SLinus Torvalds /* Unprotect RAM */
3891da177e4SLinus Torvalds param[0] = 0x11; param[1] = 0x04; param[2] = 0x68;
3901da177e4SLinus Torvalds ps2_command(ps2dev, param, 0x30d1);
3911da177e4SLinus Torvalds /* Enable features */
3921da177e4SLinus Torvalds param[0] = 0x11; param[1] = 0x05; param[2] = 0x0b;
3931da177e4SLinus Torvalds ps2_command(ps2dev, param, 0x30d1);
3941da177e4SLinus Torvalds /* Enable PS2++ */
3951da177e4SLinus Torvalds param[0] = 0x11; param[1] = 0x09; param[2] = 0xc3;
3961da177e4SLinus Torvalds ps2_command(ps2dev, param, 0x30d1);
3971da177e4SLinus Torvalds
3981da177e4SLinus Torvalds param[0] = 0;
3991da177e4SLinus Torvalds if (!ps2_command(ps2dev, param, 0x13d1) &&
400592c352bSDmitry Torokhov param[0] == 0x06 && param[1] == 0x00 &&
401592c352bSDmitry Torokhov param[2] == 0x14) {
402b7802c5cSDmitry Torokhov use_ps2pp = true;
4031da177e4SLinus Torvalds }
4041da177e4SLinus Torvalds
4051da177e4SLinus Torvalds } else {
4061da177e4SLinus Torvalds
4071da177e4SLinus Torvalds param[0] = param[1] = param[2] = 0;
4081da177e4SLinus Torvalds ps2pp_cmd(psmouse, param, 0x39); /* Magic knock */
4091da177e4SLinus Torvalds ps2pp_cmd(psmouse, param, 0xDB);
4101da177e4SLinus Torvalds
4111da177e4SLinus Torvalds if ((param[0] & 0x78) == 0x48 &&
4121da177e4SLinus Torvalds (param[1] & 0xf3) == 0xc2 &&
4131da177e4SLinus Torvalds (param[2] & 0x03) == ((param[1] >> 2) & 3)) {
414b7802c5cSDmitry Torokhov ps2pp_set_smartscroll(psmouse, false);
415b7802c5cSDmitry Torokhov use_ps2pp = true;
4161da177e4SLinus Torvalds }
4171da177e4SLinus Torvalds }
418a62f0d27SDmitry Torokhov
419a62f0d27SDmitry Torokhov } else {
420592c352bSDmitry Torokhov psmouse_warn(psmouse,
421592c352bSDmitry Torokhov "Detected unknown Logitech mouse model %d\n",
422592c352bSDmitry Torokhov model);
4231da177e4SLinus Torvalds }
4241da177e4SLinus Torvalds
4251da177e4SLinus Torvalds if (set_properties) {
4261da177e4SLinus Torvalds psmouse->vendor = "Logitech";
4271da177e4SLinus Torvalds psmouse->model = model;
4281da177e4SLinus Torvalds
4291da177e4SLinus Torvalds if (use_ps2pp) {
430592c352bSDmitry Torokhov error = ps2pp_setup_protocol(psmouse, model_info);
431592c352bSDmitry Torokhov if (error)
432592c352bSDmitry Torokhov return error;
4331da177e4SLinus Torvalds }
4341da177e4SLinus Torvalds
435315eb996SDmitry Torokhov if (buttons >= 3)
436592c352bSDmitry Torokhov input_set_capability(psmouse->dev, EV_KEY, BTN_MIDDLE);
4371da177e4SLinus Torvalds
4381da177e4SLinus Torvalds if (model_info)
4391da177e4SLinus Torvalds ps2pp_set_model_properties(psmouse, model_info, use_ps2pp);
4401da177e4SLinus Torvalds }
4411da177e4SLinus Torvalds
442592c352bSDmitry Torokhov return use_ps2pp ? 0 : -ENXIO;
4431da177e4SLinus Torvalds }
4441da177e4SLinus Torvalds
445