/* * PS/2 mouse driver * * Copyright (c) 1999-2002 Vojtech Pavlik * Copyright (c) 2003-2004 Dmitry Torokhov */ /* * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. */ #include <linux/delay.h>#include <linux/module.h>#include <linux/moduleparam.h>#include <linux/slab.h>#include <linux/interrupt.h>#include <linux/input.h>#include <linux/serio.h>#include <linux/init.h>#include <linux/libps2.h>#include "psmouse.h"#include "synaptics.h"#include "logips2pp.h"#include "alps.h"#include "lifebook.h" #define DRIVER_DESC "PS/2 mouse driver" MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");MODULE_DESCRIPTION(DRIVER_DESC);MODULE_LICENSE("GPL"); static unsigned int psmouse_max_proto = PSMOUSE_AUTO;static int psmouse_set_maxproto(const char *val, struct kernel_param *kp);static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp);#define param_check_proto_abbrev(name, p) __param_check(name, p, unsigned int)#define param_set_proto_abbrev psmouse_set_maxproto#define param_get_proto_abbrev psmouse_get_maxprotomodule_param_named(proto, psmouse_max_proto, proto_abbrev, 0644);MODULE_PARM_DESC(proto, "Highest protocol extension to probe (bare, imps, exps, any). Useful for KVM switches."); static unsigned int psmouse_resolution = 200;module_param_named(resolution, psmouse_resolution, uint, 0644);MODULE_PARM_DESC(resolution, "Resolution, in dpi."); static unsigned int psmouse_rate = 100;module_param_named(rate, psmouse_rate, uint, 0644);MODULE_PARM_DESC(rate, "Report rate, in reports per second."); static unsigned int psmouse_smartscroll = 1;module_param_named(smartscroll, psmouse_smartscroll, bool, 0644);MODULE_PARM_DESC(smartscroll, "Logitech Smartscroll autorepeat, 1 = enabled (default), 0 = disabled."); static unsigned int psmouse_resetafter;module_param_named(resetafter, psmouse_resetafter, uint, 0644);MODULE_PARM_DESC(resetafter, "Reset device after so many bad packets (0 = never)."); PSMOUSE_DEFINE_ATTR(protocol);PSMOUSE_DEFINE_ATTR(rate);PSMOUSE_DEFINE_ATTR(resolution);PSMOUSE_DEFINE_ATTR(resetafter); __obsolete_setup("psmouse_noext");__obsolete_setup("psmouse_resolution=");__obsolete_setup("psmouse_smartscroll=");__obsolete_setup("psmouse_resetafter=");__obsolete_setup("psmouse_rate="); /* * psmouse_sem protects all operations changing state of mouse * (connecting, disconnecting, changing rate or resolution via * sysfs). We could use a per-device semaphore but since there * rarely more than one PS/2 mouse connected and since semaphore * is taken in "slow" paths it is not worth it. */static DECLARE_MUTEX(psmouse_sem); struct psmouse_protocol { enum psmouse_type type; char *name; char *alias; int maxproto; int (*detect)(struct psmouse *, int); int (*init)(struct psmouse *);}; /* * psmouse_process_byte() analyzes the PS/2 data stream and reports * relevant events to the input module once full packet has arrived. */ static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse, struct pt_regs *regs){ struct input_dev *dev = &psmouse->dev; unsigned char *packet = psmouse->packet; if (psmouse->pktcnt < psmouse->pktsize) return PSMOUSE_GOOD_DATA; /* * Full packet accumulated, process it */ input_regs(dev, regs); /* * Scroll wheel on IntelliMice, scroll buttons on NetMice */ if (psmouse->type == PSMOUSE_IMPS || psmouse->type == PSMOUSE_GENPS) input_report_rel(dev, REL_WHEEL, -(signed char) packet[3]); /* * Scroll wheel and buttons on IntelliMouse Explorer */ if (psmouse->type == PSMOUSE_IMEX) { input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 8) - (int) (packet[3] & 7)); input_report_key(dev, BTN_SIDE, (packet[3] >> 4) & 1); input_report_key(dev, BTN_EXTRA, (packet[3] >> 5) & 1); } /* * Extra buttons on Genius NewNet 3D */ if (psmouse->type == PSMOUSE_GENPS) { input_report_key(dev, BTN_SIDE, (packet[0] >> 6) & 1); input_report_key(dev, BTN_EXTRA, (packet[0] >> 7) & 1); } /* * Extra button on ThinkingMouse */ if (psmouse->type == PSMOUSE_THINKPS) { input_report_key(dev, BTN_EXTRA, (packet[0] >> 3) & 1); /* Without this bit of weirdness moving up gives wildly high Y changes. */ packet[1] |= (packet[0] & 0x40) << 1; } /* * Generic PS/2 Mouse */ input_report_key(dev, BTN_LEFT, packet[0] & 1); input_report_key(dev, BTN_MIDDLE, (packet[0] >> 2) & 1); input_report_key(dev, BTN_RIGHT, (packet[0] >> 1) & 1); input_report_rel(dev, REL_X, packet[1] ? (int) packet[1] - (int) ((packet[0] << 4) & 0x100) : 0); input_report_rel(dev, REL_Y, packet[2] ? (int) ((packet[0] << 3) & 0x100) - (int) packet[2] : 0); input_sync(dev); return PSMOUSE_FULL_PACKET;} /* * psmouse_interrupt() handles incoming characters, either gathering them into * packets or passing them to the command routine as command output. */ static irqreturn_t psmouse_interrupt(struct serio *serio, unsigned char data, unsigned int flags, struct pt_regs *regs){ struct psmouse *psmouse = serio_get_drvdata(serio); psmouse_ret_t rc; if (psmouse->state == PSMOUSE_IGNORE) goto out; if (flags & (SERIO_PARITY|SERIO_TIMEOUT)) { if (psmouse->state == PSMOUSE_ACTIVATED) printk(KERN_WARNING "psmouse.c: bad data from KBC -%s%s\n", flags & SERIO_TIMEOUT ? " timeout" : "", flags & SERIO_PARITY ? " bad parity" : ""); ps2_cmd_aborted(&psmouse->ps2dev); goto out; } if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_ACK)) if (ps2_handle_ack(&psmouse->ps2dev, data)) goto out; if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_CMD)) if (ps2_handle_response(&psmouse->ps2dev, data)) goto out; if (psmouse->state == PSMOUSE_INITIALIZING) goto out; if (psmouse->state == PSMOUSE_ACTIVATED && psmouse->pktcnt && time_after(jiffies, psmouse->last + HZ/2)) { printk(KERN_WARNING "psmouse.c: %s at %s lost synchronization, throwing %d bytes away.\n", psmouse->name, psmouse->phys, psmouse->pktcnt); psmouse->pktcnt = 0; } psmouse->last = jiffies; psmouse->packet[psmouse->pktcnt++] = data; if (psmouse->packet[0] == PSMOUSE_RET_BAT) { if (psmouse->pktcnt == 1) goto out; if (psmouse->pktcnt == 2) { if (psmouse->packet[1] == PSMOUSE_RET_ID) { psmouse->state = PSMOUSE_IGNORE; serio_reconnect(serio); goto out; } if (psmouse->type == PSMOUSE_SYNAPTICS) { /* neither 0xAA nor 0x00 are valid first bytes * for a packet in absolute mode */ psmouse->pktcnt = 0; goto out; } } } rc = psmouse->protocol_handler(psmouse, regs); switch (rc) { case PSMOUSE_BAD_DATA: printk(KERN_WARNING "psmouse.c: %s at %s lost sync at byte %d\n", psmouse->name, psmouse->phys, psmouse->pktcnt); psmouse->pktcnt = 0; if (++psmouse->out_of_sync == psmouse->resetafter) { psmouse->state = PSMOUSE_IGNORE; printk(KERN_NOTICE "psmouse.c: issuing reconnect request\n"); serio_reconnect(psmouse->ps2dev.serio); } break; case PSMOUSE_FULL_PACKET: psmouse->pktcnt = 0; if (psmouse->out_of_sync) { psmouse->out_of_sync = 0; printk(KERN_NOTICE "psmouse.c: %s at %s - driver resynched.\n", psmouse->name, psmouse->phys); } break; case PSMOUSE_GOOD_DATA: break; }out: return IRQ_HANDLED;} /* * psmouse_sliced_command() sends an extended PS/2 command to the mouse * using sliced syntax, understood by advanced devices, such as Logitech * or Synaptics touchpads. The command is encoded as: * 0xE6 0xE8 rr 0xE8 ss 0xE8 tt 0xE8 uu where (rr*64)+(ss*16)+(tt*4)+uu * is the command. */int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command){ int i; if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11)) return -1; for (i = 6; i >= 0; i -= 2) { unsigned char d = (command >> i) & 3; if (ps2_command(&psmouse->ps2dev, &d, PSMOUSE_CMD_SETRES)) return -1; } return 0;} /* * psmouse_reset() resets the mouse into power-on state. */int psmouse_reset(struct psmouse *psmouse){ unsigned char param[2]; if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_RESET_BAT)) return -1; if (param[0] != PSMOUSE_RET_BAT && param[1] != PSMOUSE_RET_ID) return -1; return 0;} /* * Genius NetMouse magic init. */static int genius_detect(struct psmouse *psmouse, int set_properties){ struct ps2dev *ps2dev = &psmouse->ps2dev; unsigned char param[4]; param[0] = 3; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); if (param[0] != 0x00 || param[1] != 0x33 || param[2] != 0x55) return -1; if (set_properties) { set_bit(BTN_EXTRA, psmouse->dev.keybit); set_bit(BTN_SIDE, psmouse->dev.keybit); set_bit(REL_WHEEL, psmouse->dev.relbit); psmouse->vendor = "Genius"; psmouse->name = "Wheel Mouse"; psmouse->pktsize = 4; } return 0;} /* * IntelliMouse magic init. */static int intellimouse_detect(struct psmouse *psmouse, int set_properties){ struct ps2dev *ps2dev = &psmouse->ps2dev; unsigned char param[2]; param[0] = 200; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); param[0] = 100; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); param[0] = 80; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); ps2_command(ps2dev, param, PSMOUSE_CMD_GETID); if (param[0] != 3) return -1; if (set_properties) { set_bit(BTN_MIDDLE, psmouse->dev.keybit); set_bit(REL_WHEEL, psmouse->dev.relbit); if (!psmouse->vendor) psmouse->vendor = "Generic"; if (!psmouse->name) psmouse->name = "Wheel Mouse"; psmouse->pktsize = 4; } return 0;} /* * Try IntelliMouse/Explorer magic init. */static int im_explorer_detect(struct psmouse *psmouse, int set_properties){ struct ps2dev *ps2dev = &psmouse->ps2dev; unsigned char param[2]; intellimouse_detect(psmouse, 0); param[0] = 200; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); param[0] = 200; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); param[0] = 80; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); ps2_command(ps2dev, param, PSMOUSE_CMD_GETID); if (param[0] != 4) return -1; if (set_properties) { set_bit(BTN_MIDDLE, psmouse->dev.keybit); set_bit(REL_WHEEL, psmouse->dev.relbit); set_bit(BTN_SIDE, psmouse->dev.keybit); set_bit(BTN_EXTRA, psmouse->dev.keybit); if (!psmouse->vendor) psmouse->vendor = "Generic"; if (!psmouse->name) psmouse->name = "Explorer Mouse"; psmouse->pktsize = 4; } return 0;} /* * Kensington ThinkingMouse / ExpertMouse magic init. */static int thinking_detect(struct psmouse *psmouse, int set_properties){ struct ps2dev *ps2dev = &psmouse->ps2dev; unsigned char param[2]; unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20, 0 }; int i; param[0] = 10; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); param[0] = 0; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); for (i = 0; seq[i]; i++) ps2_command(ps2dev, seq + i, PSMOUSE_CMD_SETRATE); ps2_command(ps2dev, param, PSMOUSE_CMD_GETID); if (param[0] != 2) return -1; if (set_properties) { set_bit(BTN_EXTRA, psmouse->dev.keybit); psmouse->vendor = "Kensington"; psmouse->name = "ThinkingMouse"; } return 0;} /* * Bare PS/2 protocol "detection". Always succeeds. */static int ps2bare_detect(struct psmouse *psmouse, int set_properties){ if (set_properties) { if (!psmouse->vendor) psmouse->vendor = "Generic"; if (!psmouse->name) psmouse->name = "Mouse"; } return 0;} /* * psmouse_extensions() probes for any extensions to the basic PS/2 protocol * the mouse may have. */ static int psmouse_extensions(struct psmouse *psmouse, unsigned int max_proto, int set_properties){ int synaptics_hardware = 0; /* * We always check for lifebook because it does not disturb mouse * (it only checks DMI information). */ if (lifebook_detect(psmouse, set_properties) == 0) { if (max_proto > PSMOUSE_IMEX) { if (!set_properties || lifebook_init(psmouse) == 0) return PSMOUSE_LIFEBOOK; } } /* * Try Kensington ThinkingMouse (we try first, because synaptics probe * upsets the thinkingmouse). */ if (max_proto > PSMOUSE_IMEX && thinking_detect(psmouse, set_properties) == 0) return PSMOUSE_THINKPS; /* * Try Synaptics TouchPad */ if (max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse, set_properties) == 0) { synaptics_hardware = 1; if (max_proto > PSMOUSE_IMEX) { if (!set_properties || synaptics_init(psmouse) == 0) return PSMOUSE_SYNAPTICS;/* * Some Synaptics touchpads can emulate extended protocols (like IMPS/2). * Unfortunately Logitech/Genius probes confuse some firmware versions so * we'll have to skip them. */ max_proto = PSMOUSE_IMEX; }/* * Make sure that touchpad is in relative mode, gestures (taps) are enabled */ synaptics_reset(psmouse); } /* * Try ALPS TouchPad */ if (max_proto > PSMOUSE_IMEX) { ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS); if (alps_detect(psmouse, set_properties) == 0) { if (!set_properties || alps_init(psmouse) == 0) return PSMOUSE_ALPS;/* * Init failed, try basic relative protocols */ max_proto = PSMOUSE_IMEX;Lines 1–500 of 1259. 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/* * PS/2 mouse driver * * Copyright (c) 1999-2002 Vojtech Pavlik * Copyright (c) 2003-2004 Dmitry Torokhov */ /* * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. */ #include <linux/delay.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/slab.h> #include <linux/interrupt.h> #include <linux/input.h> #include <linux/serio.h> #include <linux/init.h> #include <linux/libps2.h> #include "psmouse.h" #include "synaptics.h" #include "logips2pp.h" #include "alps.h" #include "lifebook.h" #define DRIVER_DESC "PS/2 mouse driver" MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>"); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); static unsigned int psmouse_max_proto = PSMOUSE_AUTO; static int psmouse_set_maxproto(const char *val, struct kernel_param *kp); static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp); #define param_check_proto_abbrev(name, p) __param_check(name, p, unsigned int) #define param_set_proto_abbrev psmouse_set_maxproto #define param_get_proto_abbrev psmouse_get_maxproto module_param_named(proto, psmouse_max_proto, proto_abbrev, 0644); MODULE_PARM_DESC(proto, "Highest protocol extension to probe (bare, imps, exps, any). Useful for KVM switches."); static unsigned int psmouse_resolution = 200; module_param_named(resolution, psmouse_resolution, uint, 0644); MODULE_PARM_DESC(resolution, "Resolution, in dpi."); static unsigned int psmouse_rate = 100; module_param_named(rate, psmouse_rate, uint, 0644); MODULE_PARM_DESC(rate, "Report rate, in reports per second."); static unsigned int psmouse_smartscroll = 1; module_param_named(smartscroll, psmouse_smartscroll, bool, 0644); MODULE_PARM_DESC(smartscroll, "Logitech Smartscroll autorepeat, 1 = enabled (default), 0 = disabled."); static unsigned int psmouse_resetafter; module_param_named(resetafter, psmouse_resetafter, uint, 0644); MODULE_PARM_DESC(resetafter, "Reset device after so many bad packets (0 = never)."); PSMOUSE_DEFINE_ATTR(protocol); PSMOUSE_DEFINE_ATTR(rate); PSMOUSE_DEFINE_ATTR(resolution); PSMOUSE_DEFINE_ATTR(resetafter); __obsolete_setup("psmouse_noext"); __obsolete_setup("psmouse_resolution="); __obsolete_setup("psmouse_smartscroll="); __obsolete_setup("psmouse_resetafter="); __obsolete_setup("psmouse_rate="); /* * psmouse_sem protects all operations changing state of mouse * (connecting, disconnecting, changing rate or resolution via * sysfs). We could use a per-device semaphore but since there * rarely more than one PS/2 mouse connected and since semaphore * is taken in "slow" paths it is not worth it. */ static DECLARE_MUTEX(psmouse_sem); struct psmouse_protocol { enum psmouse_type type; char *name; char *alias; int maxproto; int (*detect)(struct psmouse *, int); int (*init)(struct psmouse *); }; /* * psmouse_process_byte() analyzes the PS/2 data stream and reports * relevant events to the input module once full packet has arrived. */ static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse, struct pt_regs *regs) { struct input_dev *dev = &psmouse->dev; unsigned char *packet = psmouse->packet; if (psmouse->pktcnt < psmouse->pktsize) return PSMOUSE_GOOD_DATA; /* * Full packet accumulated, process it */ input_regs(dev, regs); /* * Scroll wheel on IntelliMice, scroll buttons on NetMice */ if (psmouse->type == PSMOUSE_IMPS || psmouse->type == PSMOUSE_GENPS) input_report_rel(dev, REL_WHEEL, -(signed char) packet[3]); /* * Scroll wheel and buttons on IntelliMouse Explorer */ if (psmouse->type == PSMOUSE_IMEX) { input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 8) - (int) (packet[3] & 7)); input_report_key(dev, BTN_SIDE, (packet[3] >> 4) & 1); input_report_key(dev, BTN_EXTRA, (packet[3] >> 5) & 1); } /* * Extra buttons on Genius NewNet 3D */ if (psmouse->type == PSMOUSE_GENPS) { input_report_key(dev, BTN_SIDE, (packet[0] >> 6) & 1); input_report_key(dev, BTN_EXTRA, (packet[0] >> 7) & 1); } /* * Extra button on ThinkingMouse */ if (psmouse->type == PSMOUSE_THINKPS) { input_report_key(dev, BTN_EXTRA, (packet[0] >> 3) & 1); /* Without this bit of weirdness moving up gives wildly high Y changes. */ packet[1] |= (packet[0] & 0x40) << 1; } /* * Generic PS/2 Mouse */ input_report_key(dev, BTN_LEFT, packet[0] & 1); input_report_key(dev, BTN_MIDDLE, (packet[0] >> 2) & 1); input_report_key(dev, BTN_RIGHT, (packet[0] >> 1) & 1); input_report_rel(dev, REL_X, packet[1] ? (int) packet[1] - (int) ((packet[0] << 4) & 0x100) : 0); input_report_rel(dev, REL_Y, packet[2] ? (int) ((packet[0] << 3) & 0x100) - (int) packet[2] : 0); input_sync(dev); return PSMOUSE_FULL_PACKET; } /* * psmouse_interrupt() handles incoming characters, either gathering them into * packets or passing them to the command routine as command output. */ static irqreturn_t psmouse_interrupt(struct serio *serio, unsigned char data, unsigned int flags, struct pt_regs *regs) { struct psmouse *psmouse = serio_get_drvdata(serio); psmouse_ret_t rc; if (psmouse->state == PSMOUSE_IGNORE) goto out; if (flags & (SERIO_PARITY|SERIO_TIMEOUT)) { if (psmouse->state == PSMOUSE_ACTIVATED) printk(KERN_WARNING "psmouse.c: bad data from KBC -%s%s\n", flags & SERIO_TIMEOUT ? " timeout" : "", flags & SERIO_PARITY ? " bad parity" : ""); ps2_cmd_aborted(&psmouse->ps2dev); goto out; } if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_ACK)) if (ps2_handle_ack(&psmouse->ps2dev, data)) goto out; if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_CMD)) if (ps2_handle_response(&psmouse->ps2dev, data)) goto out; if (psmouse->state == PSMOUSE_INITIALIZING) goto out; if (psmouse->state == PSMOUSE_ACTIVATED && psmouse->pktcnt && time_after(jiffies, psmouse->last + HZ/2)) { printk(KERN_WARNING "psmouse.c: %s at %s lost synchronization, throwing %d bytes away.\n", psmouse->name, psmouse->phys, psmouse->pktcnt); psmouse->pktcnt = 0; } psmouse->last = jiffies; psmouse->packet[psmouse->pktcnt++] = data; if (psmouse->packet[0] == PSMOUSE_RET_BAT) { if (psmouse->pktcnt == 1) goto out; if (psmouse->pktcnt == 2) { if (psmouse->packet[1] == PSMOUSE_RET_ID) { psmouse->state = PSMOUSE_IGNORE; serio_reconnect(serio); goto out; } if (psmouse->type == PSMOUSE_SYNAPTICS) { /* neither 0xAA nor 0x00 are valid first bytes * for a packet in absolute mode */ psmouse->pktcnt = 0; goto out; } } } rc = psmouse->protocol_handler(psmouse, regs); switch (rc) { case PSMOUSE_BAD_DATA: printk(KERN_WARNING "psmouse.c: %s at %s lost sync at byte %d\n", psmouse->name, psmouse->phys, psmouse->pktcnt); psmouse->pktcnt = 0; if (++psmouse->out_of_sync == psmouse->resetafter) { psmouse->state = PSMOUSE_IGNORE; printk(KERN_NOTICE "psmouse.c: issuing reconnect request\n"); serio_reconnect(psmouse->ps2dev.serio); } break; case PSMOUSE_FULL_PACKET: psmouse->pktcnt = 0; if (psmouse->out_of_sync) { psmouse->out_of_sync = 0; printk(KERN_NOTICE "psmouse.c: %s at %s - driver resynched.\n", psmouse->name, psmouse->phys); } break; case PSMOUSE_GOOD_DATA: break; } out: return IRQ_HANDLED; } /* * psmouse_sliced_command() sends an extended PS/2 command to the mouse * using sliced syntax, understood by advanced devices, such as Logitech * or Synaptics touchpads. The command is encoded as: * 0xE6 0xE8 rr 0xE8 ss 0xE8 tt 0xE8 uu where (rr*64)+(ss*16)+(tt*4)+uu * is the command. */ int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command) { int i; if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11)) return -1; for (i = 6; i >= 0; i -= 2) { unsigned char d = (command >> i) & 3; if (ps2_command(&psmouse->ps2dev, &d, PSMOUSE_CMD_SETRES)) return -1; } return 0; } /* * psmouse_reset() resets the mouse into power-on state. */ int psmouse_reset(struct psmouse *psmouse) { unsigned char param[2]; if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_RESET_BAT)) return -1; if (param[0] != PSMOUSE_RET_BAT && param[1] != PSMOUSE_RET_ID) return -1; return 0; } /* * Genius NetMouse magic init. */ static int genius_detect(struct psmouse *psmouse, int set_properties) { struct ps2dev *ps2dev = &psmouse->ps2dev; unsigned char param[4]; param[0] = 3; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); if (param[0] != 0x00 || param[1] != 0x33 || param[2] != 0x55) return -1; if (set_properties) { set_bit(BTN_EXTRA, psmouse->dev.keybit); set_bit(BTN_SIDE, psmouse->dev.keybit); set_bit(REL_WHEEL, psmouse->dev.relbit); psmouse->vendor = "Genius"; psmouse->name = "Wheel Mouse"; psmouse->pktsize = 4; } return 0; } /* * IntelliMouse magic init. */ static int intellimouse_detect(struct psmouse *psmouse, int set_properties) { struct ps2dev *ps2dev = &psmouse->ps2dev; unsigned char param[2]; param[0] = 200; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); param[0] = 100; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); param[0] = 80; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); ps2_command(ps2dev, param, PSMOUSE_CMD_GETID); if (param[0] != 3) return -1; if (set_properties) { set_bit(BTN_MIDDLE, psmouse->dev.keybit); set_bit(REL_WHEEL, psmouse->dev.relbit); if (!psmouse->vendor) psmouse->vendor = "Generic"; if (!psmouse->name) psmouse->name = "Wheel Mouse"; psmouse->pktsize = 4; } return 0; } /* * Try IntelliMouse/Explorer magic init. */ static int im_explorer_detect(struct psmouse *psmouse, int set_properties) { struct ps2dev *ps2dev = &psmouse->ps2dev; unsigned char param[2]; intellimouse_detect(psmouse, 0); param[0] = 200; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); param[0] = 200; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); param[0] = 80; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); ps2_command(ps2dev, param, PSMOUSE_CMD_GETID); if (param[0] != 4) return -1; if (set_properties) { set_bit(BTN_MIDDLE, psmouse->dev.keybit); set_bit(REL_WHEEL, psmouse->dev.relbit); set_bit(BTN_SIDE, psmouse->dev.keybit); set_bit(BTN_EXTRA, psmouse->dev.keybit); if (!psmouse->vendor) psmouse->vendor = "Generic"; if (!psmouse->name) psmouse->name = "Explorer Mouse"; psmouse->pktsize = 4; } return 0; } /* * Kensington ThinkingMouse / ExpertMouse magic init. */ static int thinking_detect(struct psmouse *psmouse, int set_properties) { struct ps2dev *ps2dev = &psmouse->ps2dev; unsigned char param[2]; unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20, 0 }; int i; param[0] = 10; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); param[0] = 0; ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); for (i = 0; seq[i]; i++) ps2_command(ps2dev, seq + i, PSMOUSE_CMD_SETRATE); ps2_command(ps2dev, param, PSMOUSE_CMD_GETID); if (param[0] != 2) return -1; if (set_properties) { set_bit(BTN_EXTRA, psmouse->dev.keybit); psmouse->vendor = "Kensington"; psmouse->name = "ThinkingMouse"; } return 0; } /* * Bare PS/2 protocol "detection". Always succeeds. */ static int ps2bare_detect(struct psmouse *psmouse, int set_properties) { if (set_properties) { if (!psmouse->vendor) psmouse->vendor = "Generic"; if (!psmouse->name) psmouse->name = "Mouse"; } return 0; } /* * psmouse_extensions() probes for any extensions to the basic PS/2 protocol * the mouse may have. */ static int psmouse_extensions(struct psmouse *psmouse, unsigned int max_proto, int set_properties) { int synaptics_hardware = 0; /* * We always check for lifebook because it does not disturb mouse * (it only checks DMI information). */ if (lifebook_detect(psmouse, set_properties) == 0) { if (max_proto > PSMOUSE_IMEX) { if (!set_properties || lifebook_init(psmouse) == 0) return PSMOUSE_LIFEBOOK; } } /* * Try Kensington ThinkingMouse (we try first, because synaptics probe * upsets the thinkingmouse). */ if (max_proto > PSMOUSE_IMEX && thinking_detect(psmouse, set_properties) == 0) return PSMOUSE_THINKPS; /* * Try Synaptics TouchPad */ if (max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse, set_properties) == 0) { synaptics_hardware = 1; if (max_proto > PSMOUSE_IMEX) { if (!set_properties || synaptics_init(psmouse) == 0) return PSMOUSE_SYNAPTICS; /* * Some Synaptics touchpads can emulate extended protocols (like IMPS/2). * Unfortunately Logitech/Genius probes confuse some firmware versions so * we'll have to skip them. */ max_proto = PSMOUSE_IMEX; } /* * Make sure that touchpad is in relative mode, gestures (taps) are enabled */ synaptics_reset(psmouse); } /* * Try ALPS TouchPad */ if (max_proto > PSMOUSE_IMEX) { ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS); if (alps_detect(psmouse, set_properties) == 0) { if (!set_properties || alps_init(psmouse) == 0) return PSMOUSE_ALPS; /* * Init failed, try basic relative protocols */ max_proto = PSMOUSE_IMEX;