forked from Minki/linux
7b4019d048
There are wheel mice that respond to Logitech probes and report that they have only 2 buttons (such as e-Aser mouse) and this stops the wheel from being used as a middle button. Change the driver to always report BTN_MIDDLE capability if a wheel is present. Also, never reset BTN_RIGHT capability in logips2pp code - there are no Logitech mice that have only one button and if some other mice happen to respond to Logitech's query we could do the wrong thing. Signed-off-by: Vojtech Pavlik <vojtech@suse.cz> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
1260 lines
30 KiB
C
1260 lines
30 KiB
C
/*
|
|
* 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;
|
|
}
|
|
}
|
|
|
|
if (max_proto > PSMOUSE_IMEX && genius_detect(psmouse, set_properties) == 0)
|
|
return PSMOUSE_GENPS;
|
|
|
|
if (max_proto > PSMOUSE_IMEX && ps2pp_init(psmouse, set_properties) == 0)
|
|
return PSMOUSE_PS2PP;
|
|
|
|
/*
|
|
* Reset to defaults in case the device got confused by extended
|
|
* protocol probes.
|
|
*/
|
|
ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
|
|
|
|
if (max_proto >= PSMOUSE_IMEX && im_explorer_detect(psmouse, set_properties) == 0)
|
|
return PSMOUSE_IMEX;
|
|
|
|
if (max_proto >= PSMOUSE_IMPS && intellimouse_detect(psmouse, set_properties) == 0)
|
|
return PSMOUSE_IMPS;
|
|
|
|
/*
|
|
* Okay, all failed, we have a standard mouse here. The number of the buttons
|
|
* is still a question, though. We assume 3.
|
|
*/
|
|
ps2bare_detect(psmouse, set_properties);
|
|
|
|
if (synaptics_hardware) {
|
|
/*
|
|
* We detected Synaptics hardware but it did not respond to IMPS/2 probes.
|
|
* We need to reset the touchpad because if there is a track point on the
|
|
* pass through port it could get disabled while probing for protocol
|
|
* extensions.
|
|
*/
|
|
psmouse_reset(psmouse);
|
|
ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
|
|
}
|
|
|
|
return PSMOUSE_PS2;
|
|
}
|
|
|
|
static struct psmouse_protocol psmouse_protocols[] = {
|
|
{
|
|
.type = PSMOUSE_PS2,
|
|
.name = "PS/2",
|
|
.alias = "bare",
|
|
.maxproto = 1,
|
|
.detect = ps2bare_detect,
|
|
},
|
|
{
|
|
.type = PSMOUSE_PS2PP,
|
|
.name = "PS2++",
|
|
.alias = "logitech",
|
|
.detect = ps2pp_init,
|
|
},
|
|
{
|
|
.type = PSMOUSE_THINKPS,
|
|
.name = "ThinkPS/2",
|
|
.alias = "thinkps",
|
|
.detect = thinking_detect,
|
|
},
|
|
{
|
|
.type = PSMOUSE_GENPS,
|
|
.name = "GenPS/2",
|
|
.alias = "genius",
|
|
.detect = genius_detect,
|
|
},
|
|
{
|
|
.type = PSMOUSE_IMPS,
|
|
.name = "ImPS/2",
|
|
.alias = "imps",
|
|
.maxproto = 1,
|
|
.detect = intellimouse_detect,
|
|
},
|
|
{
|
|
.type = PSMOUSE_IMEX,
|
|
.name = "ImExPS/2",
|
|
.alias = "exps",
|
|
.maxproto = 1,
|
|
.detect = im_explorer_detect,
|
|
},
|
|
{
|
|
.type = PSMOUSE_SYNAPTICS,
|
|
.name = "SynPS/2",
|
|
.alias = "synaptics",
|
|
.detect = synaptics_detect,
|
|
.init = synaptics_init,
|
|
},
|
|
{
|
|
.type = PSMOUSE_ALPS,
|
|
.name = "AlpsPS/2",
|
|
.alias = "alps",
|
|
.detect = alps_detect,
|
|
.init = alps_init,
|
|
},
|
|
{
|
|
.type = PSMOUSE_LIFEBOOK,
|
|
.name = "LBPS/2",
|
|
.alias = "lifebook",
|
|
.init = lifebook_init,
|
|
},
|
|
{
|
|
.type = PSMOUSE_AUTO,
|
|
.name = "auto",
|
|
.alias = "any",
|
|
.maxproto = 1,
|
|
},
|
|
};
|
|
|
|
static struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(psmouse_protocols); i++)
|
|
if (psmouse_protocols[i].type == type)
|
|
return &psmouse_protocols[i];
|
|
|
|
WARN_ON(1);
|
|
return &psmouse_protocols[0];
|
|
}
|
|
|
|
static struct psmouse_protocol *psmouse_protocol_by_name(const char *name, size_t len)
|
|
{
|
|
struct psmouse_protocol *p;
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(psmouse_protocols); i++) {
|
|
p = &psmouse_protocols[i];
|
|
|
|
if ((strlen(p->name) == len && !strncmp(p->name, name, len)) ||
|
|
(strlen(p->alias) == len && !strncmp(p->alias, name, len)))
|
|
return &psmouse_protocols[i];
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/*
|
|
* psmouse_probe() probes for a PS/2 mouse.
|
|
*/
|
|
|
|
static int psmouse_probe(struct psmouse *psmouse)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
unsigned char param[2];
|
|
|
|
/*
|
|
* First, we check if it's a mouse. It should send 0x00 or 0x03
|
|
* in case of an IntelliMouse in 4-byte mode or 0x04 for IM Explorer.
|
|
* Sunrex K8561 IR Keyboard/Mouse reports 0xff on second and subsequent
|
|
* ID queries, probably due to a firmware bug.
|
|
*/
|
|
|
|
param[0] = 0xa5;
|
|
if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETID))
|
|
return -1;
|
|
|
|
if (param[0] != 0x00 && param[0] != 0x03 &&
|
|
param[0] != 0x04 && param[0] != 0xff)
|
|
return -1;
|
|
|
|
/*
|
|
* Then we reset and disable the mouse so that it doesn't generate events.
|
|
*/
|
|
|
|
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_DIS))
|
|
printk(KERN_WARNING "psmouse.c: Failed to reset mouse on %s\n", ps2dev->serio->phys);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Here we set the mouse resolution.
|
|
*/
|
|
|
|
void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
|
|
{
|
|
unsigned char params[] = { 0, 1, 2, 2, 3 };
|
|
|
|
if (resolution == 0 || resolution > 200)
|
|
resolution = 200;
|
|
|
|
ps2_command(&psmouse->ps2dev, ¶ms[resolution / 50], PSMOUSE_CMD_SETRES);
|
|
psmouse->resolution = 25 << params[resolution / 50];
|
|
}
|
|
|
|
/*
|
|
* Here we set the mouse report rate.
|
|
*/
|
|
|
|
static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
|
|
{
|
|
unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
|
|
int i = 0;
|
|
|
|
while (rates[i] > rate) i++;
|
|
ps2_command(&psmouse->ps2dev, &rates[i], PSMOUSE_CMD_SETRATE);
|
|
psmouse->rate = rates[i];
|
|
}
|
|
|
|
/*
|
|
* psmouse_initialize() initializes the mouse to a sane state.
|
|
*/
|
|
|
|
static void psmouse_initialize(struct psmouse *psmouse)
|
|
{
|
|
/*
|
|
* We set the mouse into streaming mode.
|
|
*/
|
|
|
|
ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM);
|
|
|
|
/*
|
|
* We set the mouse report rate, resolution and scaling.
|
|
*/
|
|
|
|
if (psmouse_max_proto != PSMOUSE_PS2) {
|
|
psmouse->set_rate(psmouse, psmouse->rate);
|
|
psmouse->set_resolution(psmouse, psmouse->resolution);
|
|
ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* psmouse_set_state() sets new psmouse state and resets all flags and
|
|
* counters while holding serio lock so fighting with interrupt handler
|
|
* is not a concern.
|
|
*/
|
|
|
|
static void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
|
|
{
|
|
serio_pause_rx(psmouse->ps2dev.serio);
|
|
psmouse->state = new_state;
|
|
psmouse->pktcnt = psmouse->out_of_sync = 0;
|
|
psmouse->ps2dev.flags = 0;
|
|
serio_continue_rx(psmouse->ps2dev.serio);
|
|
}
|
|
|
|
/*
|
|
* psmouse_activate() enables the mouse so that we get motion reports from it.
|
|
*/
|
|
|
|
static void psmouse_activate(struct psmouse *psmouse)
|
|
{
|
|
if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE))
|
|
printk(KERN_WARNING "psmouse.c: Failed to enable mouse on %s\n",
|
|
psmouse->ps2dev.serio->phys);
|
|
|
|
psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
|
|
}
|
|
|
|
|
|
/*
|
|
* psmouse_deactivate() puts the mouse into poll mode so that we don't get motion
|
|
* reports from it unless we explicitely request it.
|
|
*/
|
|
|
|
static void psmouse_deactivate(struct psmouse *psmouse)
|
|
{
|
|
if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE))
|
|
printk(KERN_WARNING "psmouse.c: Failed to deactivate mouse on %s\n",
|
|
psmouse->ps2dev.serio->phys);
|
|
|
|
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
|
|
}
|
|
|
|
|
|
/*
|
|
* psmouse_cleanup() resets the mouse into power-on state.
|
|
*/
|
|
|
|
static void psmouse_cleanup(struct serio *serio)
|
|
{
|
|
struct psmouse *psmouse = serio_get_drvdata(serio);
|
|
|
|
psmouse_reset(psmouse);
|
|
}
|
|
|
|
/*
|
|
* psmouse_disconnect() closes and frees.
|
|
*/
|
|
|
|
static void psmouse_disconnect(struct serio *serio)
|
|
{
|
|
struct psmouse *psmouse, *parent = NULL;
|
|
|
|
psmouse = serio_get_drvdata(serio);
|
|
|
|
device_remove_file(&serio->dev, &psmouse_attr_protocol);
|
|
device_remove_file(&serio->dev, &psmouse_attr_rate);
|
|
device_remove_file(&serio->dev, &psmouse_attr_resolution);
|
|
device_remove_file(&serio->dev, &psmouse_attr_resetafter);
|
|
|
|
down(&psmouse_sem);
|
|
|
|
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
|
|
|
|
if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
|
|
parent = serio_get_drvdata(serio->parent);
|
|
psmouse_deactivate(parent);
|
|
}
|
|
|
|
if (psmouse->disconnect)
|
|
psmouse->disconnect(psmouse);
|
|
|
|
if (parent && parent->pt_deactivate)
|
|
parent->pt_deactivate(parent);
|
|
|
|
psmouse_set_state(psmouse, PSMOUSE_IGNORE);
|
|
|
|
input_unregister_device(&psmouse->dev);
|
|
serio_close(serio);
|
|
serio_set_drvdata(serio, NULL);
|
|
kfree(psmouse);
|
|
|
|
if (parent)
|
|
psmouse_activate(parent);
|
|
|
|
up(&psmouse_sem);
|
|
}
|
|
|
|
static int psmouse_switch_protocol(struct psmouse *psmouse, struct psmouse_protocol *proto)
|
|
{
|
|
memset(&psmouse->dev, 0, sizeof(struct input_dev));
|
|
|
|
init_input_dev(&psmouse->dev);
|
|
|
|
psmouse->dev.private = psmouse;
|
|
psmouse->dev.dev = &psmouse->ps2dev.serio->dev;
|
|
|
|
psmouse->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
|
|
psmouse->dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
|
|
psmouse->dev.relbit[0] = BIT(REL_X) | BIT(REL_Y);
|
|
|
|
psmouse->set_rate = psmouse_set_rate;
|
|
psmouse->set_resolution = psmouse_set_resolution;
|
|
psmouse->protocol_handler = psmouse_process_byte;
|
|
psmouse->pktsize = 3;
|
|
|
|
if (proto && (proto->detect || proto->init)) {
|
|
if (proto->detect && proto->detect(psmouse, 1) < 0)
|
|
return -1;
|
|
|
|
if (proto->init && proto->init(psmouse) < 0)
|
|
return -1;
|
|
|
|
psmouse->type = proto->type;
|
|
}
|
|
else
|
|
psmouse->type = psmouse_extensions(psmouse, psmouse_max_proto, 1);
|
|
|
|
sprintf(psmouse->devname, "%s %s %s",
|
|
psmouse_protocol_by_type(psmouse->type)->name, psmouse->vendor, psmouse->name);
|
|
|
|
psmouse->dev.name = psmouse->devname;
|
|
psmouse->dev.phys = psmouse->phys;
|
|
psmouse->dev.id.bustype = BUS_I8042;
|
|
psmouse->dev.id.vendor = 0x0002;
|
|
psmouse->dev.id.product = psmouse->type;
|
|
psmouse->dev.id.version = psmouse->model;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* psmouse_connect() is a callback from the serio module when
|
|
* an unhandled serio port is found.
|
|
*/
|
|
static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
|
|
{
|
|
struct psmouse *psmouse, *parent = NULL;
|
|
int retval;
|
|
|
|
down(&psmouse_sem);
|
|
|
|
/*
|
|
* If this is a pass-through port deactivate parent so the device
|
|
* connected to this port can be successfully identified
|
|
*/
|
|
if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
|
|
parent = serio_get_drvdata(serio->parent);
|
|
psmouse_deactivate(parent);
|
|
}
|
|
|
|
if (!(psmouse = kcalloc(1, sizeof(struct psmouse), GFP_KERNEL))) {
|
|
retval = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
ps2_init(&psmouse->ps2dev, serio);
|
|
sprintf(psmouse->phys, "%s/input0", serio->phys);
|
|
|
|
psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
|
|
|
|
serio_set_drvdata(serio, psmouse);
|
|
|
|
retval = serio_open(serio, drv);
|
|
if (retval) {
|
|
serio_set_drvdata(serio, NULL);
|
|
kfree(psmouse);
|
|
goto out;
|
|
}
|
|
|
|
if (psmouse_probe(psmouse) < 0) {
|
|
serio_close(serio);
|
|
serio_set_drvdata(serio, NULL);
|
|
kfree(psmouse);
|
|
retval = -ENODEV;
|
|
goto out;
|
|
}
|
|
|
|
psmouse->rate = psmouse_rate;
|
|
psmouse->resolution = psmouse_resolution;
|
|
psmouse->resetafter = psmouse_resetafter;
|
|
psmouse->smartscroll = psmouse_smartscroll;
|
|
|
|
psmouse_switch_protocol(psmouse, NULL);
|
|
|
|
input_register_device(&psmouse->dev);
|
|
printk(KERN_INFO "input: %s on %s\n", psmouse->devname, serio->phys);
|
|
|
|
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
|
|
|
|
psmouse_initialize(psmouse);
|
|
|
|
if (parent && parent->pt_activate)
|
|
parent->pt_activate(parent);
|
|
|
|
device_create_file(&serio->dev, &psmouse_attr_protocol);
|
|
device_create_file(&serio->dev, &psmouse_attr_rate);
|
|
device_create_file(&serio->dev, &psmouse_attr_resolution);
|
|
device_create_file(&serio->dev, &psmouse_attr_resetafter);
|
|
|
|
psmouse_activate(psmouse);
|
|
|
|
retval = 0;
|
|
|
|
out:
|
|
/* If this is a pass-through port the parent needs to be re-activated */
|
|
if (parent)
|
|
psmouse_activate(parent);
|
|
|
|
up(&psmouse_sem);
|
|
return retval;
|
|
}
|
|
|
|
|
|
static int psmouse_reconnect(struct serio *serio)
|
|
{
|
|
struct psmouse *psmouse = serio_get_drvdata(serio);
|
|
struct psmouse *parent = NULL;
|
|
struct serio_driver *drv = serio->drv;
|
|
int rc = -1;
|
|
|
|
if (!drv || !psmouse) {
|
|
printk(KERN_DEBUG "psmouse: reconnect request, but serio is disconnected, ignoring...\n");
|
|
return -1;
|
|
}
|
|
|
|
down(&psmouse_sem);
|
|
|
|
if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
|
|
parent = serio_get_drvdata(serio->parent);
|
|
psmouse_deactivate(parent);
|
|
}
|
|
|
|
psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
|
|
|
|
if (psmouse->reconnect) {
|
|
if (psmouse->reconnect(psmouse))
|
|
goto out;
|
|
} else if (psmouse_probe(psmouse) < 0 ||
|
|
psmouse->type != psmouse_extensions(psmouse, psmouse_max_proto, 0))
|
|
goto out;
|
|
|
|
/* ok, the device type (and capabilities) match the old one,
|
|
* we can continue using it, complete intialization
|
|
*/
|
|
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
|
|
|
|
psmouse_initialize(psmouse);
|
|
|
|
if (parent && parent->pt_activate)
|
|
parent->pt_activate(parent);
|
|
|
|
psmouse_activate(psmouse);
|
|
rc = 0;
|
|
|
|
out:
|
|
/* If this is a pass-through port the parent waits to be activated */
|
|
if (parent)
|
|
psmouse_activate(parent);
|
|
|
|
up(&psmouse_sem);
|
|
return rc;
|
|
}
|
|
|
|
static struct serio_device_id psmouse_serio_ids[] = {
|
|
{
|
|
.type = SERIO_8042,
|
|
.proto = SERIO_ANY,
|
|
.id = SERIO_ANY,
|
|
.extra = SERIO_ANY,
|
|
},
|
|
{
|
|
.type = SERIO_PS_PSTHRU,
|
|
.proto = SERIO_ANY,
|
|
.id = SERIO_ANY,
|
|
.extra = SERIO_ANY,
|
|
},
|
|
{ 0 }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(serio, psmouse_serio_ids);
|
|
|
|
static struct serio_driver psmouse_drv = {
|
|
.driver = {
|
|
.name = "psmouse",
|
|
},
|
|
.description = DRIVER_DESC,
|
|
.id_table = psmouse_serio_ids,
|
|
.interrupt = psmouse_interrupt,
|
|
.connect = psmouse_connect,
|
|
.reconnect = psmouse_reconnect,
|
|
.disconnect = psmouse_disconnect,
|
|
.cleanup = psmouse_cleanup,
|
|
};
|
|
|
|
ssize_t psmouse_attr_show_helper(struct device *dev, char *buf,
|
|
ssize_t (*handler)(struct psmouse *, char *))
|
|
{
|
|
struct serio *serio = to_serio_port(dev);
|
|
int retval;
|
|
|
|
retval = serio_pin_driver(serio);
|
|
if (retval)
|
|
return retval;
|
|
|
|
if (serio->drv != &psmouse_drv) {
|
|
retval = -ENODEV;
|
|
goto out;
|
|
}
|
|
|
|
retval = handler(serio_get_drvdata(serio), buf);
|
|
|
|
out:
|
|
serio_unpin_driver(serio);
|
|
return retval;
|
|
}
|
|
|
|
ssize_t psmouse_attr_set_helper(struct device *dev, const char *buf, size_t count,
|
|
ssize_t (*handler)(struct psmouse *, const char *, size_t))
|
|
{
|
|
struct serio *serio = to_serio_port(dev);
|
|
struct psmouse *psmouse = serio_get_drvdata(serio);
|
|
struct psmouse *parent = NULL;
|
|
int retval;
|
|
|
|
retval = serio_pin_driver(serio);
|
|
if (retval)
|
|
return retval;
|
|
|
|
if (serio->drv != &psmouse_drv) {
|
|
retval = -ENODEV;
|
|
goto out_unpin;
|
|
}
|
|
|
|
retval = down_interruptible(&psmouse_sem);
|
|
if (retval)
|
|
goto out_unpin;
|
|
|
|
if (psmouse->state == PSMOUSE_IGNORE) {
|
|
retval = -ENODEV;
|
|
goto out_up;
|
|
}
|
|
|
|
if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
|
|
parent = serio_get_drvdata(serio->parent);
|
|
psmouse_deactivate(parent);
|
|
}
|
|
|
|
psmouse_deactivate(psmouse);
|
|
|
|
retval = handler(psmouse, buf, count);
|
|
|
|
if (retval != -ENODEV)
|
|
psmouse_activate(psmouse);
|
|
|
|
if (parent)
|
|
psmouse_activate(parent);
|
|
|
|
out_up:
|
|
up(&psmouse_sem);
|
|
out_unpin:
|
|
serio_unpin_driver(serio);
|
|
return retval;
|
|
}
|
|
|
|
static ssize_t psmouse_attr_show_protocol(struct psmouse *psmouse, char *buf)
|
|
{
|
|
return sprintf(buf, "%s\n", psmouse_protocol_by_type(psmouse->type)->name);
|
|
}
|
|
|
|
static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, const char *buf, size_t count)
|
|
{
|
|
struct serio *serio = psmouse->ps2dev.serio;
|
|
struct psmouse *parent = NULL;
|
|
struct psmouse_protocol *proto;
|
|
int retry = 0;
|
|
|
|
if (!(proto = psmouse_protocol_by_name(buf, count)))
|
|
return -EINVAL;
|
|
|
|
if (psmouse->type == proto->type)
|
|
return count;
|
|
|
|
while (serio->child) {
|
|
if (++retry > 3) {
|
|
printk(KERN_WARNING "psmouse: failed to destroy child port, protocol change aborted.\n");
|
|
return -EIO;
|
|
}
|
|
|
|
up(&psmouse_sem);
|
|
serio_unpin_driver(serio);
|
|
serio_unregister_child_port(serio);
|
|
serio_pin_driver_uninterruptible(serio);
|
|
down(&psmouse_sem);
|
|
|
|
if (serio->drv != &psmouse_drv)
|
|
return -ENODEV;
|
|
|
|
if (psmouse->type == proto->type)
|
|
return count; /* switched by other thread */
|
|
}
|
|
|
|
if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
|
|
parent = serio_get_drvdata(serio->parent);
|
|
if (parent->pt_deactivate)
|
|
parent->pt_deactivate(parent);
|
|
}
|
|
|
|
if (psmouse->disconnect)
|
|
psmouse->disconnect(psmouse);
|
|
|
|
psmouse_set_state(psmouse, PSMOUSE_IGNORE);
|
|
input_unregister_device(&psmouse->dev);
|
|
|
|
psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
|
|
|
|
if (psmouse_switch_protocol(psmouse, proto) < 0) {
|
|
psmouse_reset(psmouse);
|
|
/* default to PSMOUSE_PS2 */
|
|
psmouse_switch_protocol(psmouse, &psmouse_protocols[0]);
|
|
}
|
|
|
|
psmouse_initialize(psmouse);
|
|
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
|
|
|
|
input_register_device(&psmouse->dev);
|
|
printk(KERN_INFO "input: %s on %s\n", psmouse->devname, serio->phys);
|
|
|
|
if (parent && parent->pt_activate)
|
|
parent->pt_activate(parent);
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t psmouse_attr_show_rate(struct psmouse *psmouse, char *buf)
|
|
{
|
|
return sprintf(buf, "%d\n", psmouse->rate);
|
|
}
|
|
|
|
static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, const char *buf, size_t count)
|
|
{
|
|
unsigned long value;
|
|
char *rest;
|
|
|
|
value = simple_strtoul(buf, &rest, 10);
|
|
if (*rest)
|
|
return -EINVAL;
|
|
|
|
psmouse->set_rate(psmouse, value);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t psmouse_attr_show_resolution(struct psmouse *psmouse, char *buf)
|
|
{
|
|
return sprintf(buf, "%d\n", psmouse->resolution);
|
|
}
|
|
|
|
static ssize_t psmouse_attr_set_resolution(struct psmouse *psmouse, const char *buf, size_t count)
|
|
{
|
|
unsigned long value;
|
|
char *rest;
|
|
|
|
value = simple_strtoul(buf, &rest, 10);
|
|
if (*rest)
|
|
return -EINVAL;
|
|
|
|
psmouse->set_resolution(psmouse, value);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t psmouse_attr_show_resetafter(struct psmouse *psmouse, char *buf)
|
|
{
|
|
return sprintf(buf, "%d\n", psmouse->resetafter);
|
|
}
|
|
|
|
static ssize_t psmouse_attr_set_resetafter(struct psmouse *psmouse, const char *buf, size_t count)
|
|
{
|
|
unsigned long value;
|
|
char *rest;
|
|
|
|
value = simple_strtoul(buf, &rest, 10);
|
|
if (*rest)
|
|
return -EINVAL;
|
|
|
|
psmouse->resetafter = value;
|
|
return count;
|
|
}
|
|
|
|
static int psmouse_set_maxproto(const char *val, struct kernel_param *kp)
|
|
{
|
|
struct psmouse_protocol *proto;
|
|
|
|
if (!val)
|
|
return -EINVAL;
|
|
|
|
proto = psmouse_protocol_by_name(val, strlen(val));
|
|
|
|
if (!proto || !proto->maxproto)
|
|
return -EINVAL;
|
|
|
|
*((unsigned int *)kp->arg) = proto->type;
|
|
|
|
return 0; \
|
|
}
|
|
|
|
static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp)
|
|
{
|
|
int type = *((unsigned int *)kp->arg);
|
|
|
|
return sprintf(buffer, "%s\n", psmouse_protocol_by_type(type)->name);
|
|
}
|
|
|
|
static int __init psmouse_init(void)
|
|
{
|
|
serio_register_driver(&psmouse_drv);
|
|
return 0;
|
|
}
|
|
|
|
static void __exit psmouse_exit(void)
|
|
{
|
|
serio_unregister_driver(&psmouse_drv);
|
|
}
|
|
|
|
module_init(psmouse_init);
|
|
module_exit(psmouse_exit);
|