diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/input/mouse/Makefile | 2 | ||||
| -rw-r--r-- | drivers/input/mouse/psmouse-base.c | 15 | ||||
| -rw-r--r-- | drivers/input/mouse/psmouse.h | 1 | ||||
| -rw-r--r-- | drivers/input/mouse/trackpoint.c | 297 | ||||
| -rw-r--r-- | drivers/input/mouse/trackpoint.h | 147 |
5 files changed, 460 insertions, 2 deletions
diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile index c4909b49337..82b330bbf06 100644 --- a/drivers/input/mouse/Makefile +++ b/drivers/input/mouse/Makefile @@ -15,4 +15,4 @@ obj-$(CONFIG_MOUSE_SERIAL) += sermouse.o obj-$(CONFIG_MOUSE_HIL) += hil_ptr.o obj-$(CONFIG_MOUSE_VSXXXAA) += vsxxxaa.o -psmouse-objs := psmouse-base.o alps.o logips2pp.o synaptics.o lifebook.o +psmouse-objs := psmouse-base.o alps.o logips2pp.o synaptics.o lifebook.o trackpoint.o diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c index 2bb2fe78bdc..b3508276785 100644 --- a/drivers/input/mouse/psmouse-base.c +++ b/drivers/input/mouse/psmouse-base.c @@ -25,6 +25,7 @@ #include "logips2pp.h" #include "alps.h" #include "lifebook.h" +#include "trackpoint.h" #define DRIVER_DESC "PS/2 mouse driver" @@ -520,6 +521,12 @@ static int psmouse_extensions(struct psmouse *psmouse, return PSMOUSE_IMPS; /* + * Try to initialize the IBM TrackPoint + */ + if (max_proto > PSMOUSE_IMEX && trackpoint_detect(psmouse, set_properties) == 0) + return PSMOUSE_TRACKPOINT; + +/* * Okay, all failed, we have a standard mouse here. The number of the buttons * is still a question, though. We assume 3. */ @@ -600,6 +607,12 @@ static struct psmouse_protocol psmouse_protocols[] = { .init = lifebook_init, }, { + .type = PSMOUSE_TRACKPOINT, + .name = "TPPS/2", + .alias = "trackpoint", + .detect = trackpoint_detect, + }, + { .type = PSMOUSE_AUTO, .name = "auto", .alias = "any", @@ -1234,7 +1247,7 @@ static int psmouse_set_maxproto(const char *val, struct kernel_param *kp) *((unsigned int *)kp->arg) = proto->type; - return 0; \ + return 0; } static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp) diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h index 86691cf4343..e312a6b4168 100644 --- a/drivers/input/mouse/psmouse.h +++ b/drivers/input/mouse/psmouse.h @@ -78,6 +78,7 @@ enum psmouse_type { PSMOUSE_SYNAPTICS, PSMOUSE_ALPS, PSMOUSE_LIFEBOOK, + PSMOUSE_TRACKPOINT, PSMOUSE_AUTO /* This one should always be last */ }; diff --git a/drivers/input/mouse/trackpoint.c b/drivers/input/mouse/trackpoint.c new file mode 100644 index 00000000000..aee3b24a910 --- /dev/null +++ b/drivers/input/mouse/trackpoint.c @@ -0,0 +1,297 @@ +/* + * Stephen Evanchik <evanchsa@gmail.com> + * + * 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. + * + * Trademarks are the property of their respective owners. + */ + +#include <linux/delay.h> +#include <linux/serio.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/input.h> +#include <linux/libps2.h> +#include <linux/proc_fs.h> +#include <asm/uaccess.h> +#include "psmouse.h" +#include "trackpoint.h" + +PSMOUSE_DEFINE_ATTR(sensitivity); +PSMOUSE_DEFINE_ATTR(speed); +PSMOUSE_DEFINE_ATTR(inertia); +PSMOUSE_DEFINE_ATTR(reach); +PSMOUSE_DEFINE_ATTR(draghys); +PSMOUSE_DEFINE_ATTR(mindrag); +PSMOUSE_DEFINE_ATTR(thresh); +PSMOUSE_DEFINE_ATTR(upthresh); +PSMOUSE_DEFINE_ATTR(ztime); +PSMOUSE_DEFINE_ATTR(jenks); +PSMOUSE_DEFINE_ATTR(press_to_select); +PSMOUSE_DEFINE_ATTR(skipback); +PSMOUSE_DEFINE_ATTR(ext_dev); + +#define MAKE_ATTR_READ(_item) \ + static ssize_t psmouse_attr_show_##_item(struct psmouse *psmouse, char *buf) \ + { \ + struct trackpoint_data *tp = psmouse->private; \ + return sprintf(buf, "%lu\n", (unsigned long)tp->_item); \ + } + +#define MAKE_ATTR_WRITE(_item, command) \ + static ssize_t psmouse_attr_set_##_item(struct psmouse *psmouse, const char *buf, size_t count) \ + { \ + char *rest; \ + unsigned long value; \ + struct trackpoint_data *tp = psmouse->private; \ + value = simple_strtoul(buf, &rest, 10); \ + if (*rest) \ + return -EINVAL; \ + tp->_item = value; \ + trackpoint_write(&psmouse->ps2dev, command, tp->_item); \ + return count; \ + } + +#define MAKE_ATTR_TOGGLE(_item, command, mask) \ + static ssize_t psmouse_attr_set_##_item(struct psmouse *psmouse, const char *buf, size_t count) \ + { \ + unsigned char toggle; \ + struct trackpoint_data *tp = psmouse->private; \ + toggle = (buf[0] == '1') ? 1 : 0; \ + if (toggle != tp->_item) { \ + tp->_item = toggle; \ + trackpoint_toggle_bit(&psmouse->ps2dev, command, mask); \ + } \ + return count; \ + } + +/* + * Device IO: read, write and toggle bit + */ +static int trackpoint_read(struct ps2dev *ps2dev, unsigned char loc, unsigned char *results) +{ + if (ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_COMMAND)) || + ps2_command(ps2dev, results, MAKE_PS2_CMD(0, 1, loc))) { + return -1; + } + + return 0; +} + +static int trackpoint_write(struct ps2dev *ps2dev, unsigned char loc, unsigned char val) +{ + if (ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_COMMAND)) || + ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_WRITE_MEM)) || + ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, loc)) || + ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, val))) { + return -1; + } + + return 0; +} + +static int trackpoint_toggle_bit(struct ps2dev *ps2dev, unsigned char loc, unsigned char mask) +{ + /* Bad things will happen if the loc param isn't in this range */ + if (loc < 0x20 || loc >= 0x2F) + return -1; + + if (ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_COMMAND)) || + ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_TOGGLE)) || + ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, loc)) || + ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, mask))) { + return -1; + } + + return 0; +} + +MAKE_ATTR_WRITE(sensitivity, TP_SENS); +MAKE_ATTR_READ(sensitivity); + +MAKE_ATTR_WRITE(speed, TP_SPEED); +MAKE_ATTR_READ(speed); + +MAKE_ATTR_WRITE(inertia, TP_INERTIA); +MAKE_ATTR_READ(inertia); + +MAKE_ATTR_WRITE(reach, TP_REACH); +MAKE_ATTR_READ(reach); + +MAKE_ATTR_WRITE(draghys, TP_DRAGHYS); +MAKE_ATTR_READ(draghys); + +MAKE_ATTR_WRITE(mindrag, TP_MINDRAG); +MAKE_ATTR_READ(mindrag); + +MAKE_ATTR_WRITE(thresh, TP_THRESH); +MAKE_ATTR_READ(thresh); + +MAKE_ATTR_WRITE(upthresh, TP_UP_THRESH); +MAKE_ATTR_READ(upthresh); + +MAKE_ATTR_WRITE(ztime, TP_Z_TIME); +MAKE_ATTR_READ(ztime); + +MAKE_ATTR_WRITE(jenks, TP_JENKS_CURV); +MAKE_ATTR_READ(jenks); + +MAKE_ATTR_TOGGLE(press_to_select, TP_TOGGLE_PTSON, TP_MASK_PTSON); +MAKE_ATTR_READ(press_to_select); + +MAKE_ATTR_TOGGLE(skipback, TP_TOGGLE_SKIPBACK, TP_MASK_SKIPBACK); +MAKE_ATTR_READ(skipback); + +MAKE_ATTR_TOGGLE(ext_dev, TP_TOGGLE_EXT_DEV, TP_MASK_EXT_DEV); +MAKE_ATTR_READ(ext_dev); + +static struct attribute *trackpoint_attrs[] = { + &psmouse_attr_sensitivity.attr, + &psmouse_attr_speed.attr, + &psmouse_attr_inertia.attr, + &psmouse_attr_reach.attr, + &psmouse_attr_draghys.attr, + &psmouse_attr_mindrag.attr, + &psmouse_attr_thresh.attr, + &psmouse_attr_upthresh.attr, + &psmouse_attr_ztime.attr, + &psmouse_attr_jenks.attr, + &psmouse_attr_press_to_select.attr, + &psmouse_attr_skipback.attr, + &psmouse_attr_ext_dev.attr, + NULL +}; + +static struct attribute_group trackpoint_attr_group = { + .attrs = trackpoint_attrs, +}; + +static void trackpoint_disconnect(struct psmouse *psmouse) +{ + sysfs_remove_group(&psmouse->ps2dev.serio->dev.kobj, &trackpoint_attr_group); + + kfree(psmouse->private); + psmouse->private = NULL; +} + +static int trackpoint_sync(struct psmouse *psmouse) +{ + unsigned char toggle; + struct trackpoint_data *tp = psmouse->private; + + if (!tp) + return -1; + + /* Disable features that may make device unusable with this driver */ + trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_TWOHAND, &toggle); + if (toggle & TP_MASK_TWOHAND) + trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_TWOHAND, TP_MASK_TWOHAND); + + trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_SOURCE_TAG, &toggle); + if (toggle & TP_MASK_SOURCE_TAG) + trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_SOURCE_TAG, TP_MASK_SOURCE_TAG); + + trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_MB, &toggle); + if (toggle & TP_MASK_MB) + trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_MB, TP_MASK_MB); + + /* Push the config to the device */ + trackpoint_write(&psmouse->ps2dev, TP_SENS, tp->sensitivity); + trackpoint_write(&psmouse->ps2dev, TP_INERTIA, tp->inertia); + trackpoint_write(&psmouse->ps2dev, TP_SPEED, tp->speed); + + trackpoint_write(&psmouse->ps2dev, TP_REACH, tp->reach); + trackpoint_write(&psmouse->ps2dev, TP_DRAGHYS, tp->draghys); + trackpoint_write(&psmouse->ps2dev, TP_MINDRAG, tp->mindrag); + + trackpoint_write(&psmouse->ps2dev, TP_THRESH, tp->thresh); + trackpoint_write(&psmouse->ps2dev, TP_UP_THRESH, tp->upthresh); + + trackpoint_write(&psmouse->ps2dev, TP_Z_TIME, tp->ztime); + trackpoint_write(&psmouse->ps2dev, TP_JENKS_CURV, tp->jenks); + + trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_PTSON, &toggle); + if (((toggle & TP_MASK_PTSON) == TP_MASK_PTSON) != tp->press_to_select) + trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_PTSON, TP_MASK_PTSON); + + trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_SKIPBACK, &toggle); + if (((toggle & TP_MASK_SKIPBACK) == TP_MASK_SKIPBACK) != tp->skipback) + trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_SKIPBACK, TP_MASK_SKIPBACK); + + trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_EXT_DEV, &toggle); + if (((toggle & TP_MASK_EXT_DEV) == TP_MASK_EXT_DEV) != tp->ext_dev) + trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_EXT_DEV, TP_MASK_EXT_DEV); + + return 0; +} + +static void trackpoint_defaults(struct trackpoint_data *tp) +{ + tp->press_to_select = TP_DEF_PTSON; + tp->sensitivity = TP_DEF_SENS; + tp->speed = TP_DEF_SPEED; + tp->reach = TP_DEF_REACH; + + tp->draghys = TP_DEF_DRAGHYS; + tp->mindrag = TP_DEF_MINDRAG; + + tp->thresh = TP_DEF_THRESH; + tp->upthresh = TP_DEF_UP_THRESH; + + tp->ztime = TP_DEF_Z_TIME; + tp->jenks = TP_DEF_JENKS_CURV; + + tp->inertia = TP_DEF_INERTIA; + tp->skipback = TP_DEF_SKIPBACK; + tp->ext_dev = TP_DEF_EXT_DEV; +} + +int trackpoint_detect(struct psmouse *psmouse, int set_properties) +{ + struct trackpoint_data *priv; + struct ps2dev *ps2dev = &psmouse->ps2dev; + unsigned char firmware_id; + unsigned char button_info; + unsigned char param[2]; + + param[0] = param[1] = 0; + + if (ps2_command(ps2dev, param, MAKE_PS2_CMD(0, 2, TP_READ_ID))) + return -1; + + if (param[0] != TP_MAGIC_IDENT) + return -1; + + if (!set_properties) + return 0; + + firmware_id = param[1]; + + if (trackpoint_read(&psmouse->ps2dev, TP_EXT_BTN, &button_info)) { + printk(KERN_WARNING "trackpoint.c: failed to get extended button data\n"); + button_info = 0; + } + + psmouse->private = priv = kcalloc(1, sizeof(struct trackpoint_data), GFP_KERNEL); + if (!priv) + return -1; + + psmouse->vendor = "IBM"; + psmouse->name = "TrackPoint"; + + psmouse->reconnect = trackpoint_sync; + psmouse->disconnect = trackpoint_disconnect; + + trackpoint_defaults(priv); + trackpoint_sync(psmouse); + + sysfs_create_group(&ps2dev->serio->dev.kobj, &trackpoint_attr_group); + + printk(KERN_INFO "IBM TrackPoint firmware: 0x%02x, buttons: %d/%d\n", + firmware_id, (button_info & 0xf0) >> 4, button_info & 0x0f); + + return 0; +} + diff --git a/drivers/input/mouse/trackpoint.h b/drivers/input/mouse/trackpoint.h new file mode 100644 index 00000000000..9857d8b6ad6 --- /dev/null +++ b/drivers/input/mouse/trackpoint.h @@ -0,0 +1,147 @@ +/* + * IBM TrackPoint PS/2 mouse driver + * + * Stephen Evanchik <evanchsa@gmail.com> + * + * 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. + */ + +#ifndef _TRACKPOINT_H +#define _TRACKPOINT_H + +/* + * These constants are from the TrackPoint System + * Engineering documentation Version 4 from IBM Watson + * research: + * http://wwwcssrv.almaden.ibm.com/trackpoint/download.html + */ + +#define TP_COMMAND 0xE2 /* Commands start with this */ + +#define TP_READ_ID 0xE1 /* Sent for device identification */ +#define TP_MAGIC_IDENT 0x01 /* Sent after a TP_READ_ID followed */ + /* by the firmware ID */ + + +/* + * Commands + */ +#define TP_RECALIB 0x51 /* Recalibrate */ +#define TP_POWER_DOWN 0x44 /* Can only be undone through HW reset */ +#define TP_EXT_DEV 0x21 /* Determines if external device is connected (RO) */ +#define TP_EXT_BTN 0x4B /* Read extended button status */ +#define TP_POR 0x7F /* Execute Power on Reset */ +#define TP_POR_RESULTS 0x25 /* Read Power on Self test results */ +#define TP_DISABLE_EXT 0x40 /* Disable external pointing device */ +#define TP_ENABLE_EXT 0x41 /* Enable external pointing device */ + +/* + * Mode manipulation + */ +#define TP_SET_SOFT_TRANS 0x4E /* Set mode */ +#define TP_CANCEL_SOFT_TRANS 0xB9 /* Cancel mode */ +#define TP_SET_HARD_TRANS 0x45 /* Mode can only be set */ + + +/* + * Register oriented commands/properties + */ +#define TP_WRITE_MEM 0x81 +#define TP_READ_MEM 0x80 /* Not used in this implementation */ + +/* +* RAM Locations for properties + */ +#define TP_SENS 0x4A /* Sensitivity */ +#define TP_MB 0x4C /* Read Middle Button Status (RO) */ +#define TP_INERTIA 0x4D /* Negative Inertia */ +#define TP_SPEED 0x60 /* Speed of TP Cursor */ +#define TP_REACH 0x57 /* Backup for Z-axis press */ +#define TP_DRAGHYS 0x58 /* Drag Hysteresis */ + /* (how hard it is to drag */ + /* with Z-axis pressed) */ + +#define TP_MINDRAG 0x59 /* Minimum amount of force needed */ + /* to trigger dragging */ + +#define TP_THRESH 0x5C /* Minimum value for a Z-axis press */ +#define TP_UP_THRESH 0x5A /* Used to generate a 'click' on Z-axis */ +#define TP_Z_TIME 0x5E /* How sharp of a press */ +#define TP_JENKS_CURV 0x5D /* Minimum curvature for double click */ + +/* + * Toggling Flag bits + */ +#define TP_TOGGLE 0x47 /* Toggle command */ + +#define TP_TOGGLE_MB 0x23 /* Disable/Enable Middle Button */ +#define TP_MASK_MB 0x01 +#define TP_TOGGLE_EXT_DEV 0x23 /* Toggle external device */ +#define TP_MASK_EXT_DEV 0x02 +#define TP_TOGGLE_DRIFT 0x23 /* Drift Correction */ +#define TP_MASK_DRIFT 0x80 +#define TP_TOGGLE_BURST 0x28 /* Burst Mode */ +#define TP_MASK_BURST 0x80 +#define TP_TOGGLE_PTSON 0x2C /* Press to Select */ +#define TP_MASK_PTSON 0x01 +#define TP_TOGGLE_HARD_TRANS 0x2C /* Alternate method to set Hard Transparency */ +#define TP_MASK_HARD_TRANS 0x80 +#define TP_TOGGLE_TWOHAND 0x2D /* Two handed */ +#define TP_MASK_TWOHAND 0x01 +#define TP_TOGGLE_STICKY_TWO 0x2D /* Sticky two handed */ +#define TP_MASK_STICKY_TWO 0x04 +#define TP_TOGGLE_SKIPBACK 0x2D /* Suppress movement after drag release */ +#define TP_MASK_SKIPBACK 0x08 +#define TP_TOGGLE_SOURCE_TAG 0x20 /* Bit 3 of the first packet will be set to + to the origin of the packet (external or TP) */ +#define TP_MASK_SOURCE_TAG 0x80 +#define TP_TOGGLE_EXT_TAG 0x22 /* Bit 3 of the first packet coming from the + external device will be forced to 1 */ +#define TP_MASK_EXT_TAG 0x04 + + +/* Power on Self Test Results */ +#define TP_POR_SUCCESS 0x3B + +/* + * Default power on values + */ +#define TP_DEF_SENS 0x80 +#define TP_DEF_INERTIA 0x06 +#define TP_DEF_SPEED 0x61 +#define TP_DEF_REACH 0x0A + +#define TP_DEF_DRAGHYS 0xFF +#define TP_DEF_MINDRAG 0x14 + +#define TP_DEF_THRESH 0x08 +#define TP_DEF_UP_THRESH 0xFF +#define TP_DEF_Z_TIME 0x26 +#define TP_DEF_JENKS_CURV 0x87 + +/* Toggles */ +#define TP_DEF_MB 0x00 +#define TP_DEF_PTSON 0x00 +#define TP_DEF_SKIPBACK 0x00 +#define TP_DEF_EXT_DEV 0x01 + +#define MAKE_PS2_CMD(params, results, cmd) ((params<<12) | (results<<8) | (cmd)) + +struct trackpoint_data +{ + unsigned char sensitivity, speed, inertia, reach; + unsigned char draghys, mindrag; + unsigned char thresh, upthresh; + unsigned char ztime, jenks; + + unsigned char press_to_select; + unsigned char skipback; + + unsigned char ext_dev; +}; + +extern int trackpoint_detect(struct psmouse *psmouse, int set_properties); + +#endif /* _TRACKPOINT_H */ |