4 * Copyright (c) 1999-2002 Vojtech Pavlik
5 * Copyright (c) 2003-2004 Dmitry Torokhov
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License version 2 as published by
11 * the Free Software Foundation.
14 #include <linux/delay.h>
15 #include <linux/module.h>
16 #include <linux/moduleparam.h>
17 #include <linux/slab.h>
18 #include <linux/interrupt.h>
19 #include <linux/input.h>
20 #include <linux/serio.h>
21 #include <linux/init.h>
22 #include <linux/libps2.h>
24 #include "synaptics.h"
25 #include "logips2pp.h"
29 #define DRIVER_DESC "PS/2 mouse driver"
31 MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
32 MODULE_DESCRIPTION(DRIVER_DESC);
33 MODULE_LICENSE("GPL");
35 static unsigned int psmouse_max_proto = -1U;
36 static int psmouse_set_maxproto(const char *val, struct kernel_param *kp);
37 static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp);
38 static char *psmouse_proto_abbrev[] = { NULL, "bare", NULL, NULL, NULL, "imps", "exps", NULL, NULL, "lifebook" };
39 #define param_check_proto_abbrev(name, p) __param_check(name, p, unsigned int)
40 #define param_set_proto_abbrev psmouse_set_maxproto
41 #define param_get_proto_abbrev psmouse_get_maxproto
42 module_param_named(proto, psmouse_max_proto, proto_abbrev, 0644);
43 MODULE_PARM_DESC(proto, "Highest protocol extension to probe (bare, imps, exps, lifebook, any). Useful for KVM switches.");
45 static unsigned int psmouse_resolution = 200;
46 module_param_named(resolution, psmouse_resolution, uint, 0644);
47 MODULE_PARM_DESC(resolution, "Resolution, in dpi.");
49 static unsigned int psmouse_rate = 100;
50 module_param_named(rate, psmouse_rate, uint, 0644);
51 MODULE_PARM_DESC(rate, "Report rate, in reports per second.");
53 static unsigned int psmouse_smartscroll = 1;
54 module_param_named(smartscroll, psmouse_smartscroll, bool, 0644);
55 MODULE_PARM_DESC(smartscroll, "Logitech Smartscroll autorepeat, 1 = enabled (default), 0 = disabled.");
57 static unsigned int psmouse_resetafter;
58 module_param_named(resetafter, psmouse_resetafter, uint, 0644);
59 MODULE_PARM_DESC(resetafter, "Reset device after so many bad packets (0 = never).");
61 PSMOUSE_DEFINE_ATTR(rate);
62 PSMOUSE_DEFINE_ATTR(resolution);
63 PSMOUSE_DEFINE_ATTR(resetafter);
65 __obsolete_setup("psmouse_noext");
66 __obsolete_setup("psmouse_resolution=");
67 __obsolete_setup("psmouse_smartscroll=");
68 __obsolete_setup("psmouse_resetafter=");
69 __obsolete_setup("psmouse_rate=");
71 static char *psmouse_protocols[] = { "None", "PS/2", "PS2++", "ThinkPS/2", "GenPS/2", "ImPS/2", "ImExPS/2", "SynPS/2", "AlpsPS/2", "LBPS/2" };
74 * psmouse_process_byte() analyzes the PS/2 data stream and reports
75 * relevant events to the input module once full packet has arrived.
78 static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
80 struct input_dev *dev = &psmouse->dev;
81 unsigned char *packet = psmouse->packet;
83 if (psmouse->pktcnt < psmouse->pktsize)
84 return PSMOUSE_GOOD_DATA;
87 * Full packet accumulated, process it
90 input_regs(dev, regs);
93 * Scroll wheel on IntelliMice, scroll buttons on NetMice
96 if (psmouse->type == PSMOUSE_IMPS || psmouse->type == PSMOUSE_GENPS)
97 input_report_rel(dev, REL_WHEEL, -(signed char) packet[3]);
100 * Scroll wheel and buttons on IntelliMouse Explorer
103 if (psmouse->type == PSMOUSE_IMEX) {
104 input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 8) - (int) (packet[3] & 7));
105 input_report_key(dev, BTN_SIDE, (packet[3] >> 4) & 1);
106 input_report_key(dev, BTN_EXTRA, (packet[3] >> 5) & 1);
110 * Extra buttons on Genius NewNet 3D
113 if (psmouse->type == PSMOUSE_GENPS) {
114 input_report_key(dev, BTN_SIDE, (packet[0] >> 6) & 1);
115 input_report_key(dev, BTN_EXTRA, (packet[0] >> 7) & 1);
119 * Extra button on ThinkingMouse
121 if (psmouse->type == PSMOUSE_THINKPS) {
122 input_report_key(dev, BTN_EXTRA, (packet[0] >> 3) & 1);
123 /* Without this bit of weirdness moving up gives wildly high Y changes. */
124 packet[1] |= (packet[0] & 0x40) << 1;
131 input_report_key(dev, BTN_LEFT, packet[0] & 1);
132 input_report_key(dev, BTN_MIDDLE, (packet[0] >> 2) & 1);
133 input_report_key(dev, BTN_RIGHT, (packet[0] >> 1) & 1);
135 input_report_rel(dev, REL_X, packet[1] ? (int) packet[1] - (int) ((packet[0] << 4) & 0x100) : 0);
136 input_report_rel(dev, REL_Y, packet[2] ? (int) ((packet[0] << 3) & 0x100) - (int) packet[2] : 0);
140 return PSMOUSE_FULL_PACKET;
144 * psmouse_interrupt() handles incoming characters, either gathering them into
145 * packets or passing them to the command routine as command output.
148 static irqreturn_t psmouse_interrupt(struct serio *serio,
149 unsigned char data, unsigned int flags, struct pt_regs *regs)
151 struct psmouse *psmouse = serio_get_drvdata(serio);
154 if (psmouse->state == PSMOUSE_IGNORE)
157 if (flags & (SERIO_PARITY|SERIO_TIMEOUT)) {
158 if (psmouse->state == PSMOUSE_ACTIVATED)
159 printk(KERN_WARNING "psmouse.c: bad data from KBC -%s%s\n",
160 flags & SERIO_TIMEOUT ? " timeout" : "",
161 flags & SERIO_PARITY ? " bad parity" : "");
162 ps2_cmd_aborted(&psmouse->ps2dev);
166 if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_ACK))
167 if (ps2_handle_ack(&psmouse->ps2dev, data))
170 if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_CMD))
171 if (ps2_handle_response(&psmouse->ps2dev, data))
174 if (psmouse->state == PSMOUSE_INITIALIZING)
177 if (psmouse->state == PSMOUSE_ACTIVATED &&
178 psmouse->pktcnt && time_after(jiffies, psmouse->last + HZ/2)) {
179 printk(KERN_WARNING "psmouse.c: %s at %s lost synchronization, throwing %d bytes away.\n",
180 psmouse->name, psmouse->phys, psmouse->pktcnt);
184 psmouse->last = jiffies;
185 psmouse->packet[psmouse->pktcnt++] = data;
187 if (psmouse->packet[0] == PSMOUSE_RET_BAT) {
188 if (psmouse->pktcnt == 1)
191 if (psmouse->pktcnt == 2) {
192 if (psmouse->packet[1] == PSMOUSE_RET_ID) {
193 psmouse->state = PSMOUSE_IGNORE;
194 serio_reconnect(serio);
197 if (psmouse->type == PSMOUSE_SYNAPTICS) {
198 /* neither 0xAA nor 0x00 are valid first bytes
199 * for a packet in absolute mode
207 rc = psmouse->protocol_handler(psmouse, regs);
210 case PSMOUSE_BAD_DATA:
211 printk(KERN_WARNING "psmouse.c: %s at %s lost sync at byte %d\n",
212 psmouse->name, psmouse->phys, psmouse->pktcnt);
215 if (++psmouse->out_of_sync == psmouse->resetafter) {
216 psmouse->state = PSMOUSE_IGNORE;
217 printk(KERN_NOTICE "psmouse.c: issuing reconnect request\n");
218 serio_reconnect(psmouse->ps2dev.serio);
222 case PSMOUSE_FULL_PACKET:
224 if (psmouse->out_of_sync) {
225 psmouse->out_of_sync = 0;
226 printk(KERN_NOTICE "psmouse.c: %s at %s - driver resynched.\n",
227 psmouse->name, psmouse->phys);
231 case PSMOUSE_GOOD_DATA:
240 * psmouse_sliced_command() sends an extended PS/2 command to the mouse
241 * using sliced syntax, understood by advanced devices, such as Logitech
242 * or Synaptics touchpads. The command is encoded as:
243 * 0xE6 0xE8 rr 0xE8 ss 0xE8 tt 0xE8 uu where (rr*64)+(ss*16)+(tt*4)+uu
246 int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command)
250 if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11))
253 for (i = 6; i >= 0; i -= 2) {
254 unsigned char d = (command >> i) & 3;
255 if (ps2_command(&psmouse->ps2dev, &d, PSMOUSE_CMD_SETRES))
264 * psmouse_reset() resets the mouse into power-on state.
266 int psmouse_reset(struct psmouse *psmouse)
268 unsigned char param[2];
270 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_RESET_BAT))
273 if (param[0] != PSMOUSE_RET_BAT && param[1] != PSMOUSE_RET_ID)
281 * Genius NetMouse magic init.
283 static int genius_detect(struct psmouse *psmouse, int set_properties)
285 struct ps2dev *ps2dev = &psmouse->ps2dev;
286 unsigned char param[4];
289 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
290 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
291 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
292 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
293 ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
295 if (param[0] != 0x00 || param[1] != 0x33 || param[2] != 0x55)
298 if (set_properties) {
299 set_bit(BTN_EXTRA, psmouse->dev.keybit);
300 set_bit(BTN_SIDE, psmouse->dev.keybit);
301 set_bit(REL_WHEEL, psmouse->dev.relbit);
303 psmouse->vendor = "Genius";
304 psmouse->name = "Wheel Mouse";
305 psmouse->pktsize = 4;
312 * IntelliMouse magic init.
314 static int intellimouse_detect(struct psmouse *psmouse, int set_properties)
316 struct ps2dev *ps2dev = &psmouse->ps2dev;
317 unsigned char param[2];
320 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
322 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
324 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
325 ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
330 if (set_properties) {
331 set_bit(REL_WHEEL, psmouse->dev.relbit);
333 if (!psmouse->vendor) psmouse->vendor = "Generic";
334 if (!psmouse->name) psmouse->name = "Wheel Mouse";
335 psmouse->pktsize = 4;
342 * Try IntelliMouse/Explorer magic init.
344 static int im_explorer_detect(struct psmouse *psmouse, int set_properties)
346 struct ps2dev *ps2dev = &psmouse->ps2dev;
347 unsigned char param[2];
349 intellimouse_detect(psmouse, 0);
352 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
354 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
356 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
357 ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
362 if (set_properties) {
363 set_bit(REL_WHEEL, psmouse->dev.relbit);
364 set_bit(BTN_SIDE, psmouse->dev.keybit);
365 set_bit(BTN_EXTRA, psmouse->dev.keybit);
367 if (!psmouse->vendor) psmouse->vendor = "Generic";
368 if (!psmouse->name) psmouse->name = "Explorer Mouse";
369 psmouse->pktsize = 4;
376 * Kensington ThinkingMouse / ExpertMouse magic init.
378 static int thinking_detect(struct psmouse *psmouse, int set_properties)
380 struct ps2dev *ps2dev = &psmouse->ps2dev;
381 unsigned char param[2];
382 unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20, 0 };
386 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
388 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
389 for (i = 0; seq[i]; i++)
390 ps2_command(ps2dev, seq + i, PSMOUSE_CMD_SETRATE);
391 ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
396 if (set_properties) {
397 set_bit(BTN_EXTRA, psmouse->dev.keybit);
399 psmouse->vendor = "Kensington";
400 psmouse->name = "ThinkingMouse";
407 * Bare PS/2 protocol "detection". Always succeeds.
409 static int ps2bare_detect(struct psmouse *psmouse, int set_properties)
411 if (!psmouse->vendor) psmouse->vendor = "Generic";
412 if (!psmouse->name) psmouse->name = "Mouse";
418 * psmouse_extensions() probes for any extensions to the basic PS/2 protocol
419 * the mouse may have.
422 static int psmouse_extensions(struct psmouse *psmouse,
423 unsigned int max_proto, int set_properties)
425 int synaptics_hardware = 0;
427 if (lifebook_detect(psmouse, max_proto, set_properties) == 0)
428 return PSMOUSE_LIFEBOOK;
431 * Try Kensington ThinkingMouse (we try first, because synaptics probe
432 * upsets the thinkingmouse).
435 if (max_proto > PSMOUSE_IMEX && thinking_detect(psmouse, set_properties) == 0)
436 return PSMOUSE_THINKPS;
439 * Try Synaptics TouchPad
441 if (max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse, set_properties) == 0) {
442 synaptics_hardware = 1;
444 if (max_proto > PSMOUSE_IMEX) {
445 if (!set_properties || synaptics_init(psmouse) == 0)
446 return PSMOUSE_SYNAPTICS;
448 * Some Synaptics touchpads can emulate extended protocols (like IMPS/2).
449 * Unfortunately Logitech/Genius probes confuse some firmware versions so
450 * we'll have to skip them.
452 max_proto = PSMOUSE_IMEX;
455 * Make sure that touchpad is in relative mode, gestures (taps) are enabled
457 synaptics_reset(psmouse);
463 if (max_proto > PSMOUSE_IMEX) {
464 ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
465 if (alps_detect(psmouse, set_properties) == 0) {
466 if (!set_properties || alps_init(psmouse) == 0)
469 * Init failed, try basic relative protocols
471 max_proto = PSMOUSE_IMEX;
475 if (max_proto > PSMOUSE_IMEX && genius_detect(psmouse, set_properties) == 0)
476 return PSMOUSE_GENPS;
478 if (max_proto > PSMOUSE_IMEX && ps2pp_init(psmouse, set_properties) == 0)
479 return PSMOUSE_PS2PP;
482 * Reset to defaults in case the device got confused by extended
485 ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
487 if (max_proto >= PSMOUSE_IMEX && im_explorer_detect(psmouse, set_properties) == 0)
490 if (max_proto >= PSMOUSE_IMPS && intellimouse_detect(psmouse, set_properties) == 0)
494 * Okay, all failed, we have a standard mouse here. The number of the buttons
495 * is still a question, though. We assume 3.
497 ps2bare_detect(psmouse, set_properties);
499 if (synaptics_hardware) {
501 * We detected Synaptics hardware but it did not respond to IMPS/2 probes.
502 * We need to reset the touchpad because if there is a track point on the
503 * pass through port it could get disabled while probing for protocol
506 psmouse_reset(psmouse);
507 ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
514 * psmouse_probe() probes for a PS/2 mouse.
517 static int psmouse_probe(struct psmouse *psmouse)
519 struct ps2dev *ps2dev = &psmouse->ps2dev;
520 unsigned char param[2];
523 * First, we check if it's a mouse. It should send 0x00 or 0x03
524 * in case of an IntelliMouse in 4-byte mode or 0x04 for IM Explorer.
525 * Sunrex K8561 IR Keyboard/Mouse reports 0xff on second and subsequent
526 * ID queries, probably due to a firmware bug.
530 if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETID))
533 if (param[0] != 0x00 && param[0] != 0x03 &&
534 param[0] != 0x04 && param[0] != 0xff)
538 * Then we reset and disable the mouse so that it doesn't generate events.
541 if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_DIS))
542 printk(KERN_WARNING "psmouse.c: Failed to reset mouse on %s\n", ps2dev->serio->phys);
548 * Here we set the mouse resolution.
551 void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
553 unsigned char params[] = { 0, 1, 2, 2, 3 };
555 if (resolution == 0 || resolution > 200)
558 ps2_command(&psmouse->ps2dev, ¶ms[resolution / 50], PSMOUSE_CMD_SETRES);
559 psmouse->resolution = 25 << params[resolution / 50];
563 * Here we set the mouse report rate.
566 static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
568 unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
571 while (rates[i] > rate) i++;
572 ps2_command(&psmouse->ps2dev, &rates[i], PSMOUSE_CMD_SETRATE);
573 psmouse->rate = rates[i];
577 * psmouse_initialize() initializes the mouse to a sane state.
580 static void psmouse_initialize(struct psmouse *psmouse)
583 * We set the mouse into streaming mode.
586 ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM);
589 * We set the mouse report rate, resolution and scaling.
592 if (psmouse_max_proto != PSMOUSE_PS2) {
593 psmouse->set_rate(psmouse, psmouse->rate);
594 psmouse->set_resolution(psmouse, psmouse->resolution);
595 ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
600 * psmouse_set_state() sets new psmouse state and resets all flags and
601 * counters while holding serio lock so fighting with interrupt handler
605 static void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
607 serio_pause_rx(psmouse->ps2dev.serio);
608 psmouse->state = new_state;
609 psmouse->pktcnt = psmouse->out_of_sync = 0;
610 psmouse->ps2dev.flags = 0;
611 serio_continue_rx(psmouse->ps2dev.serio);
615 * psmouse_activate() enables the mouse so that we get motion reports from it.
618 static void psmouse_activate(struct psmouse *psmouse)
620 if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE))
621 printk(KERN_WARNING "psmouse.c: Failed to enable mouse on %s\n",
622 psmouse->ps2dev.serio->phys);
624 psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
629 * psmouse_deactivate() puts the mouse into poll mode so that we don't get motion
630 * reports from it unless we explicitely request it.
633 static void psmouse_deactivate(struct psmouse *psmouse)
635 if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE))
636 printk(KERN_WARNING "psmouse.c: Failed to deactivate mouse on %s\n",
637 psmouse->ps2dev.serio->phys);
639 psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
644 * psmouse_cleanup() resets the mouse into power-on state.
647 static void psmouse_cleanup(struct serio *serio)
649 struct psmouse *psmouse = serio_get_drvdata(serio);
651 psmouse_reset(psmouse);
655 * psmouse_disconnect() closes and frees.
658 static void psmouse_disconnect(struct serio *serio)
660 struct psmouse *psmouse, *parent;
662 device_remove_file(&serio->dev, &psmouse_attr_rate);
663 device_remove_file(&serio->dev, &psmouse_attr_resolution);
664 device_remove_file(&serio->dev, &psmouse_attr_resetafter);
666 psmouse = serio_get_drvdata(serio);
667 psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
669 if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
670 parent = serio_get_drvdata(serio->parent);
671 if (parent->pt_deactivate)
672 parent->pt_deactivate(parent);
675 if (psmouse->disconnect)
676 psmouse->disconnect(psmouse);
678 psmouse_set_state(psmouse, PSMOUSE_IGNORE);
680 input_unregister_device(&psmouse->dev);
682 serio_set_drvdata(serio, NULL);
687 * psmouse_connect() is a callback from the serio module when
688 * an unhandled serio port is found.
690 static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
692 struct psmouse *psmouse, *parent = NULL;
696 * If this is a pass-through port deactivate parent so the device
697 * connected to this port can be successfully identified
699 if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
700 parent = serio_get_drvdata(serio->parent);
701 psmouse_deactivate(parent);
704 if (!(psmouse = kmalloc(sizeof(struct psmouse), GFP_KERNEL))) {
709 memset(psmouse, 0, sizeof(struct psmouse));
711 ps2_init(&psmouse->ps2dev, serio);
712 sprintf(psmouse->phys, "%s/input0", serio->phys);
713 psmouse->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
714 psmouse->dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
715 psmouse->dev.relbit[0] = BIT(REL_X) | BIT(REL_Y);
716 psmouse->dev.private = psmouse;
717 psmouse->dev.dev = &serio->dev;
718 psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
720 serio_set_drvdata(serio, psmouse);
722 retval = serio_open(serio, drv);
724 serio_set_drvdata(serio, NULL);
729 if (psmouse_probe(psmouse) < 0) {
731 serio_set_drvdata(serio, NULL);
737 psmouse->rate = psmouse_rate;
738 psmouse->resolution = psmouse_resolution;
739 psmouse->resetafter = psmouse_resetafter;
740 psmouse->smartscroll = psmouse_smartscroll;
741 psmouse->set_rate = psmouse_set_rate;
742 psmouse->set_resolution = psmouse_set_resolution;
743 psmouse->protocol_handler = psmouse_process_byte;
744 psmouse->pktsize = 3;
746 psmouse->type = psmouse_extensions(psmouse, psmouse_max_proto, 1);
748 sprintf(psmouse->devname, "%s %s %s",
749 psmouse_protocols[psmouse->type], psmouse->vendor, psmouse->name);
751 psmouse->dev.name = psmouse->devname;
752 psmouse->dev.phys = psmouse->phys;
753 psmouse->dev.id.bustype = BUS_I8042;
754 psmouse->dev.id.vendor = 0x0002;
755 psmouse->dev.id.product = psmouse->type;
756 psmouse->dev.id.version = psmouse->model;
758 input_register_device(&psmouse->dev);
760 printk(KERN_INFO "input: %s on %s\n", psmouse->devname, serio->phys);
762 psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
764 psmouse_initialize(psmouse);
766 if (parent && parent->pt_activate)
767 parent->pt_activate(parent);
769 device_create_file(&serio->dev, &psmouse_attr_rate);
770 device_create_file(&serio->dev, &psmouse_attr_resolution);
771 device_create_file(&serio->dev, &psmouse_attr_resetafter);
773 psmouse_activate(psmouse);
778 /* If this is a pass-through port the parent awaits to be activated */
780 psmouse_activate(parent);
786 static int psmouse_reconnect(struct serio *serio)
788 struct psmouse *psmouse = serio_get_drvdata(serio);
789 struct psmouse *parent = NULL;
790 struct serio_driver *drv = serio->drv;
793 if (!drv || !psmouse) {
794 printk(KERN_DEBUG "psmouse: reconnect request, but serio is disconnected, ignoring...\n");
798 if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
799 parent = serio_get_drvdata(serio->parent);
800 psmouse_deactivate(parent);
803 psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
805 if (psmouse->reconnect) {
806 if (psmouse->reconnect(psmouse))
808 } else if (psmouse_probe(psmouse) < 0 ||
809 psmouse->type != psmouse_extensions(psmouse, psmouse_max_proto, 0))
812 /* ok, the device type (and capabilities) match the old one,
813 * we can continue using it, complete intialization
815 psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
817 psmouse_initialize(psmouse);
819 if (parent && parent->pt_activate)
820 parent->pt_activate(parent);
822 psmouse_activate(psmouse);
826 /* If this is a pass-through port the parent waits to be activated */
828 psmouse_activate(parent);
833 static struct serio_device_id psmouse_serio_ids[] = {
841 .type = SERIO_PS_PSTHRU,
849 MODULE_DEVICE_TABLE(serio, psmouse_serio_ids);
851 static struct serio_driver psmouse_drv = {
855 .description = DRIVER_DESC,
856 .id_table = psmouse_serio_ids,
857 .interrupt = psmouse_interrupt,
858 .connect = psmouse_connect,
859 .reconnect = psmouse_reconnect,
860 .disconnect = psmouse_disconnect,
861 .cleanup = psmouse_cleanup,
864 ssize_t psmouse_attr_show_helper(struct device *dev, char *buf,
865 ssize_t (*handler)(struct psmouse *, char *))
867 struct serio *serio = to_serio_port(dev);
870 retval = serio_pin_driver(serio);
874 if (serio->drv != &psmouse_drv) {
879 retval = handler(serio_get_drvdata(serio), buf);
882 serio_unpin_driver(serio);
886 ssize_t psmouse_attr_set_helper(struct device *dev, const char *buf, size_t count,
887 ssize_t (*handler)(struct psmouse *, const char *, size_t))
889 struct serio *serio = to_serio_port(dev);
890 struct psmouse *psmouse = serio_get_drvdata(serio);
891 struct psmouse *parent = NULL;
894 retval = serio_pin_driver(serio);
898 if (serio->drv != &psmouse_drv) {
903 if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
904 parent = serio_get_drvdata(serio->parent);
905 psmouse_deactivate(parent);
907 psmouse_deactivate(psmouse);
909 retval = handler(psmouse, buf, count);
911 psmouse_activate(psmouse);
913 psmouse_activate(parent);
916 serio_unpin_driver(serio);
920 static ssize_t psmouse_attr_show_rate(struct psmouse *psmouse, char *buf)
922 return sprintf(buf, "%d\n", psmouse->rate);
925 static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, const char *buf, size_t count)
930 value = simple_strtoul(buf, &rest, 10);
934 psmouse->set_rate(psmouse, value);
938 static ssize_t psmouse_attr_show_resolution(struct psmouse *psmouse, char *buf)
940 return sprintf(buf, "%d\n", psmouse->resolution);
943 static ssize_t psmouse_attr_set_resolution(struct psmouse *psmouse, const char *buf, size_t count)
948 value = simple_strtoul(buf, &rest, 10);
952 psmouse->set_resolution(psmouse, value);
956 static ssize_t psmouse_attr_show_resetafter(struct psmouse *psmouse, char *buf)
958 return sprintf(buf, "%d\n", psmouse->resetafter);
961 static ssize_t psmouse_attr_set_resetafter(struct psmouse *psmouse, const char *buf, size_t count)
966 value = simple_strtoul(buf, &rest, 10);
970 psmouse->resetafter = value;
974 static int psmouse_set_maxproto(const char *val, struct kernel_param *kp)
981 if (!strncmp(val, "any", 3)) {
982 *((unsigned int *)kp->arg) = -1U;
986 for (i = 0; i < ARRAY_SIZE(psmouse_proto_abbrev); i++) {
987 if (!psmouse_proto_abbrev[i])
990 if (!strncmp(val, psmouse_proto_abbrev[i], strlen(psmouse_proto_abbrev[i]))) {
991 *((unsigned int *)kp->arg) = i;
999 static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp)
1001 return sprintf(buffer, "%s\n",
1002 psmouse_max_proto < ARRAY_SIZE(psmouse_proto_abbrev) ?
1003 psmouse_proto_abbrev[psmouse_max_proto] : "any");
1006 static int __init psmouse_init(void)
1008 serio_register_driver(&psmouse_drv);
1012 static void __exit psmouse_exit(void)
1014 serio_unregister_driver(&psmouse_drv);
1017 module_init(psmouse_init);
1018 module_exit(psmouse_exit);