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Input: combine hil_kbd and hil_ptr drivers

Browse source 
hil_kbd and hil_ptr look like twins so it makes sense to combine them
into a single driver.

[deller@gmx.de: add MODULE_ALIAS() entry for mouse]
Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2009-08-07 23:17:47 -07:00
parent 1437dc3089
commit fa71c605c2
5 changed files with 219 additions and 493 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
drivers/input/keyboard/Kconfig
View file

@ -187,7 +187,7 @@ config KEYBOARD_HIL_OLD
submenu.
config KEYBOARD_HIL
tristate "HP HIL keyboard support"
tristate "HP HIL keyboard/pointer support"
depends on GSC || HP300
default y
select HP_SDC
@ -196,7 +196,8 @@ config KEYBOARD_HIL
help
The "Human Interface Loop" is a older, 8-channel USB-like
controller used in several Hewlett Packard models.
This driver implements support for HIL-keyboards attached
This driver implements support for HIL-keyboards and pointing
devices (mice, tablets, touchscreens) attached
to your machine, so normally you should say Y here.
config KEYBOARD_HP6XX

251
drivers/input/keyboard/hil_kbd.c
View file

@ -41,13 +41,13 @@
#include <linux/slab.h>
#include <linux/pci_ids.h>
#define PREFIX "HIL KEYB: "
#define HIL_GENERIC_NAME "HIL keyboard"
#define PREFIX "HIL: "
MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
MODULE_DESCRIPTION(HIL_GENERIC_NAME " driver");
MODULE_DESCRIPTION("HIL keyboard/mouse driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_ALIAS("serio:ty03pr25id00ex*");
MODULE_ALIAS("serio:ty03pr25id00ex*"); /* HIL keyboard */
MODULE_ALIAS("serio:ty03pr25id0Fex*"); /* HIL mouse */
#define HIL_PACKET_MAX_LENGTH 16
@ -82,6 +82,11 @@ struct hil_dev {
char rnm[HIL_PACKET_MAX_LENGTH + 1]; /* RNM record + NULL term. */
struct completion cmd_done;
bool is_pointer;
/* Extra device details needed for pointing devices. */
unsigned int nbtn, naxes;
unsigned int btnmap[7];
};
static bool hil_dev_is_command_response(hil_packet p)
@ -139,7 +144,7 @@ static void hil_dev_handle_command_response(struct hil_dev *dev)
complete(&dev->cmd_done);
}
static void hil_dev_handle_key_events(struct hil_dev *kbd)
static void hil_dev_handle_kbd_events(struct hil_dev *kbd)
{
struct input_dev *dev = kbd->dev;
int idx = kbd->idx4 / 4;
@ -198,6 +203,67 @@ static void hil_dev_handle_key_events(struct hil_dev *kbd)
input_sync(dev);
}
static void hil_dev_handle_ptr_events(struct hil_dev *ptr)
{
struct input_dev *dev = ptr->dev;
int idx = ptr->idx4 / 4;
hil_packet p = ptr->data[idx - 1];
int i, cnt, laxis;
bool absdev, ax16;
if ((p & HIL_CMDCT_POL) != idx - 1) {
printk(KERN_WARNING PREFIX
"Malformed poll packet %x (idx = %i)\n", p, idx);
return;
}
i = (p & HIL_POL_AXIS_ALT) ? 3 : 0;
laxis = (p & HIL_POL_NUM_AXES_MASK) + i;
ax16 = ptr->idd[1] & HIL_IDD_HEADER_16BIT; /* 8 or 16bit resolution */
absdev = ptr->idd[1] & HIL_IDD_HEADER_ABS;
for (cnt = 1; i < laxis; i++) {
unsigned int lo, hi, val;
lo = ptr->data[cnt++] & HIL_PKT_DATA_MASK;
hi = ax16 ? (ptr->data[cnt++] & HIL_PKT_DATA_MASK) : 0;
if (absdev) {
val = lo + (hi << 8);
#ifdef TABLET_AUTOADJUST
if (val < dev->absmin[ABS_X + i])
dev->absmin[ABS_X + i] = val;
if (val > dev->absmax[ABS_X + i])
dev->absmax[ABS_X + i] = val;
#endif
if (i%3) val = dev->absmax[ABS_X + i] - val;
input_report_abs(dev, ABS_X + i, val);
} else {
val = (int) (((int8_t)lo) | ((int8_t)hi << 8));
if (i % 3)
val *= -1;
input_report_rel(dev, REL_X + i, val);
}
}
while (cnt < idx - 1) {
unsigned int btn = ptr->data[cnt++];
int up = btn & 1;
btn &= 0xfe;
if (btn == 0x8e)
continue; /* TODO: proximity == touch? */
if (btn > 0x8c || btn < 0x80)
continue;
btn = (btn - 0x80) >> 1;
btn = ptr->btnmap[btn];
input_report_key(dev, btn, !up);
}
input_sync(dev);
}
static void hil_dev_process_err(struct hil_dev *dev)
{
printk(KERN_WARNING PREFIX "errored HIL packet\n");
@ -234,8 +300,10 @@ static irqreturn_t hil_dev_interrupt(struct serio *serio,
} else if (packet & HIL_PKT_CMD) {
if (hil_dev_is_command_response(packet))
hil_dev_handle_command_response(dev);
else if (dev->is_pointer)
hil_dev_handle_ptr_events(dev);
else
hil_dev_handle_key_events(dev);
hil_dev_handle_kbd_events(dev);
dev->idx4 = 0;
}
}
@ -251,15 +319,130 @@ static void hil_dev_disconnect(struct serio *serio)
serio_close(serio);
input_unregister_device(dev->dev);
serio_set_drvdata(serio, NULL);
kfree(dev);
}
static void hil_dev_keyboard_setup(struct hil_dev *kbd)
{
struct input_dev *input_dev = kbd->dev;
uint8_t did = kbd->idd[0];
int i;
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
input_dev->ledbit[0] = BIT_MASK(LED_NUML) | BIT_MASK(LED_CAPSL) |
BIT_MASK(LED_SCROLLL);
for (i = 0; i < 128; i++) {
__set_bit(hil_kbd_set1[i], input_dev->keybit);
__set_bit(hil_kbd_set3[i], input_dev->keybit);
}
__clear_bit(KEY_RESERVED, input_dev->keybit);
input_dev->keycodemax = HIL_KEYCODES_SET1_TBLSIZE;
input_dev->keycodesize = sizeof(hil_kbd_set1[0]);
input_dev->keycode = hil_kbd_set1;
input_dev->name = strlen(kbd->rnm) ? kbd->rnm : "HIL keyboard";
input_dev->phys = "hpkbd/input0";
printk(KERN_INFO PREFIX "HIL keyboard found (did = 0x%02x, lang = %s)\n",
did, hil_language[did & HIL_IDD_DID_TYPE_KB_LANG_MASK]);
}
static void hil_dev_pointer_setup(struct hil_dev *ptr)
{
struct input_dev *input_dev = ptr->dev;
uint8_t did = ptr->idd[0];
uint8_t *idd = ptr->idd + 1;
unsigned int naxsets = HIL_IDD_NUM_AXSETS(*idd);
unsigned int i, btntype;
const char *txt;
ptr->naxes = HIL_IDD_NUM_AXES_PER_SET(*idd);
switch (did & HIL_IDD_DID_TYPE_MASK) {
case HIL_IDD_DID_TYPE_REL:
input_dev->evbit[0] = BIT_MASK(EV_REL);
for (i = 0; i < ptr->naxes; i++)
__set_bit(REL_X + i, input_dev->relbit);
for (i = 3; naxsets > 1 && i < ptr->naxes + 3; i++)
__set_bit(REL_X + i, input_dev->relbit);
txt = "relative";
break;
case HIL_IDD_DID_TYPE_ABS:
input_dev->evbit[0] = BIT_MASK(EV_ABS);
for (i = 0; i < ptr->naxes; i++)
input_set_abs_params(input_dev, ABS_X + i,
0, HIL_IDD_AXIS_MAX(idd, i), 0, 0);
for (i = 3; naxsets > 1 && i < ptr->naxes + 3; i++)
input_set_abs_params(input_dev, ABS_X + i,
0, HIL_IDD_AXIS_MAX(idd, i - 3), 0, 0);
#ifdef TABLET_AUTOADJUST
for (i = 0; i < ABS_MAX; i++) {
int diff = input_dev->absmax[ABS_X + i] / 10;
input_dev->absmin[ABS_X + i] += diff;
input_dev->absmax[ABS_X + i] -= diff;
}
#endif
txt = "absolute";
break;
default:
BUG();
}
ptr->nbtn = HIL_IDD_NUM_BUTTONS(idd);
if (ptr->nbtn)
input_dev->evbit[0] |= BIT_MASK(EV_KEY);
btntype = BTN_MISC;
if ((did & HIL_IDD_DID_ABS_TABLET_MASK) == HIL_IDD_DID_ABS_TABLET)
#ifdef TABLET_SIMULATES_MOUSE
btntype = BTN_TOUCH;
#else
btntype = BTN_DIGI;
#endif
if ((did & HIL_IDD_DID_ABS_TSCREEN_MASK) == HIL_IDD_DID_ABS_TSCREEN)
btntype = BTN_TOUCH;
if ((did & HIL_IDD_DID_REL_MOUSE_MASK) == HIL_IDD_DID_REL_MOUSE)
btntype = BTN_MOUSE;
for (i = 0; i < ptr->nbtn; i++) {
__set_bit(btntype | i, input_dev->keybit);
ptr->btnmap[i] = btntype | i;
}
if (btntype == BTN_MOUSE) {
/* Swap buttons 2 and 3 */
ptr->btnmap[1] = BTN_MIDDLE;
ptr->btnmap[2] = BTN_RIGHT;
}
input_dev->name = strlen(ptr->rnm) ? ptr->rnm : "HIL pointer device";
printk(KERN_INFO PREFIX
"HIL pointer device found (did: 0x%02x, axis: %s)\n",
did, txt);
printk(KERN_INFO PREFIX
"HIL pointer has %i buttons and %i sets of %i axes\n",
ptr->nbtn, naxsets, ptr->naxes);
}
static int hil_dev_connect(struct serio *serio, struct serio_driver *drv)
{
struct hil_dev *dev;
struct input_dev *input_dev;
uint8_t did, *idd;
int i;
int error;
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
@ -317,49 +500,47 @@ static int hil_dev_connect(struct serio *serio, struct serio_driver *drv)
did = dev->idd[0];
idd = dev->idd + 1;
switch (did & HIL_IDD_DID_TYPE_MASK) {
case HIL_IDD_DID_TYPE_KB_INTEGRAL:
case HIL_IDD_DID_TYPE_KB_ITF:
case HIL_IDD_DID_TYPE_KB_RSVD:
case HIL_IDD_DID_TYPE_CHAR:
printk(KERN_INFO PREFIX "HIL keyboard found (did = 0x%02x, lang = %s)\n",
did, hil_language[did & HIL_IDD_DID_TYPE_KB_LANG_MASK]);
if (HIL_IDD_NUM_BUTTONS(idd) ||
HIL_IDD_NUM_AXES_PER_SET(*idd)) {
printk(KERN_INFO PREFIX
"combo devices are not supported.\n");
goto bail1;
}
dev->is_pointer = false;
hil_dev_keyboard_setup(dev);
break;
case HIL_IDD_DID_TYPE_REL:
case HIL_IDD_DID_TYPE_ABS:
dev->is_pointer = true;
hil_dev_pointer_setup(dev);
break;
default:
goto bail1;
}
if (HIL_IDD_NUM_BUTTONS(idd) || HIL_IDD_NUM_AXES_PER_SET(*idd)) {
printk(KERN_INFO PREFIX "keyboards only, no combo devices supported.\n");
goto bail1;
}
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
input_dev->ledbit[0] = BIT_MASK(LED_NUML) | BIT_MASK(LED_CAPSL) |
BIT_MASK(LED_SCROLLL);
input_dev->keycodemax = HIL_KEYCODES_SET1_TBLSIZE;
input_dev->keycodesize = sizeof(hil_kbd_set1[0]);
input_dev->keycode = hil_kbd_set1;
input_dev->name = strlen(dev->rnm) ? dev->rnm : HIL_GENERIC_NAME;
input_dev->phys = "hpkbd/input0"; /* XXX */
input_dev->id.bustype = BUS_HIL;
input_dev->id.vendor = PCI_VENDOR_ID_HP;
input_dev->id.product = 0x0001; /* TODO: get from kbd->rsc */
input_dev->id.version = 0x0100; /* TODO: get from kbd->rsc */
input_dev->dev.parent = &serio->dev;
for (i = 0; i < 128; i++) {
__set_bit(hil_kbd_set1[i], input_dev->keybit);
__set_bit(hil_kbd_set3[i], input_dev->keybit);
if (!dev->is_pointer) {
serio_write(serio, 0);
serio_write(serio, 0);
serio_write(serio, HIL_PKT_CMD >> 8);
/* Enable Keyswitch Autorepeat 1 */
serio_write(serio, HIL_CMD_EK1);
/* No need to wait for completion */
}
__clear_bit(KEY_RESERVED, input_dev->keybit);
serio_write(serio, 0);
serio_write(serio, 0);
serio_write(serio, HIL_PKT_CMD >> 8);
serio_write(serio, HIL_CMD_EK1); /* Enable Keyswitch Autorepeat 1 */
/* No need to wait for completion */
error = input_register_device(input_dev);
if (error)
@ -388,9 +569,9 @@ static struct serio_device_id hil_dev_ids[] = {
static struct serio_driver hil_serio_drv = {
.driver = {
.name = "hil_kbd",
.name = "hil_dev",
},
.description = "HP HIL keyboard driver",
.description = "HP HIL keyboard/mouse/tablet driver",
.id_table = hil_dev_ids,
.connect = hil_dev_connect,
.disconnect = hil_dev_disconnect,

8
drivers/input/mouse/Kconfig
View file

@ -262,14 +262,6 @@ config MOUSE_VSXXXAA
described in the source file). This driver also works with the
digitizer (VSXXX-AB) DEC produced.
config MOUSE_HIL
tristate "HIL pointers (mice etc)."
depends on GSC || HP300
select HP_SDC
select HIL_MLC
help
Say Y here to support HIL pointers.
config MOUSE_GPIO
tristate "GPIO mouse"
depends on GENERIC_GPIO

1
drivers/input/mouse/Makefile
View file

@ -9,7 +9,6 @@ obj-$(CONFIG_MOUSE_APPLETOUCH) += appletouch.o
obj-$(CONFIG_MOUSE_ATARI) += atarimouse.o
obj-$(CONFIG_MOUSE_BCM5974) += bcm5974.o
obj-$(CONFIG_MOUSE_GPIO) += gpio_mouse.o
obj-$(CONFIG_MOUSE_HIL) += hil_ptr.o
obj-$(CONFIG_MOUSE_INPORT) += inport.o
obj-$(CONFIG_MOUSE_LOGIBM) += logibm.o
obj-$(CONFIG_MOUSE_MAPLE) += maplemouse.o

447
drivers/input/mouse/hil_ptr.c
View file

@ -1,447 +0,0 @@
/*
* Generic linux-input device driver for axis-bearing devices
*
* Copyright (c) 2001 Brian S. Julin
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL").
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
*
* References:
* HP-HIL Technical Reference Manual. Hewlett Packard Product No. 45918A
*
*/
#include <linux/hil.h>
#include <linux/input.h>
#include <linux/serio.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/pci_ids.h>
#define PREFIX "HIL PTR: "
#define HIL_GENERIC_NAME "HIL pointer device"
MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
MODULE_DESCRIPTION(HIL_GENERIC_NAME " driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_ALIAS("serio:ty03pr25id0Fex*");
#define TABLET_SIMULATES_MOUSE /* allow tablet to be used as mouse */
#undef TABLET_AUTOADJUST /* auto-adjust valid tablet ranges */
#define HIL_PTR_MAX_LENGTH 16
struct hil_ptr {
struct input_dev *dev;
struct serio *serio;
/* Input buffer and index for packets from HIL bus. */
hil_packet data[HIL_PTR_MAX_LENGTH];
int idx4; /* four counts per packet */
/* Raw device info records from HIL bus, see hil.h for fields. */
char idd[HIL_PTR_MAX_LENGTH]; /* DID byte and IDD record */
char rsc[HIL_PTR_MAX_LENGTH]; /* RSC record */
char exd[HIL_PTR_MAX_LENGTH]; /* EXD record */
char rnm[HIL_PTR_MAX_LENGTH + 1]; /* RNM record + NULL term. */
/* Extra device details not contained in struct input_dev. */
unsigned int nbtn, naxes;
unsigned int btnmap[7];
/* Something to sleep around with. */
struct semaphore sem;
};
/* Process a complete packet after transfer from the HIL */
static void hil_ptr_process_record(struct hil_ptr *ptr)
{
struct input_dev *dev = ptr->dev;
hil_packet *data = ptr->data;
hil_packet p;
int idx, i, cnt, laxis;
int ax16, absdev;
idx = ptr->idx4/4;
p = data[idx - 1];
if ((p & ~HIL_CMDCT_POL) ==
(HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_POL))
goto report;
if ((p & ~HIL_CMDCT_RPL) ==
(HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_RPL))
goto report;
/* Not a poll response. See if we are loading config records. */
switch (p & HIL_PKT_DATA_MASK) {
case HIL_CMD_IDD:
for (i = 0; i < idx; i++)
ptr->idd[i] = ptr->data[i] & HIL_PKT_DATA_MASK;
for (; i < HIL_PTR_MAX_LENGTH; i++)
ptr->idd[i] = 0;
break;
case HIL_CMD_RSC:
for (i = 0; i < idx; i++)
ptr->rsc[i] = ptr->data[i] & HIL_PKT_DATA_MASK;
for (; i < HIL_PTR_MAX_LENGTH; i++)
ptr->rsc[i] = 0;
break;
case HIL_CMD_EXD:
for (i = 0; i < idx; i++)
ptr->exd[i] = ptr->data[i] & HIL_PKT_DATA_MASK;
for (; i < HIL_PTR_MAX_LENGTH; i++)
ptr->exd[i] = 0;
break;
case HIL_CMD_RNM:
for (i = 0; i < idx; i++)
ptr->rnm[i] = ptr->data[i] & HIL_PKT_DATA_MASK;
for (; i < HIL_PTR_MAX_LENGTH + 1; i++)
ptr->rnm[i] = 0;
break;
default:
/* These occur when device isn't present */
if (p == (HIL_ERR_INT | HIL_PKT_CMD))
break;
/* Anything else we'd like to know about. */
printk(KERN_WARNING PREFIX "Device sent unknown record %x\n", p);
break;
}
goto out;
report:
if ((p & HIL_CMDCT_POL) != idx - 1) {
printk(KERN_WARNING PREFIX
"Malformed poll packet %x (idx = %i)\n", p, idx);
goto out;
}
i = (ptr->data[0] & HIL_POL_AXIS_ALT) ? 3 : 0;
laxis = ptr->data[0] & HIL_POL_NUM_AXES_MASK;
laxis += i;
ax16 = ptr->idd[1] & HIL_IDD_HEADER_16BIT; /* 8 or 16bit resolution */
absdev = ptr->idd[1] & HIL_IDD_HEADER_ABS;
for (cnt = 1; i < laxis; i++) {
unsigned int lo,hi,val;
lo = ptr->data[cnt++] & HIL_PKT_DATA_MASK;
hi = ax16 ? (ptr->data[cnt++] & HIL_PKT_DATA_MASK) : 0;
if (absdev) {
val = lo + (hi<<8);
#ifdef TABLET_AUTOADJUST
if (val < dev->absmin[ABS_X + i])
dev->absmin[ABS_X + i] = val;
if (val > dev->absmax[ABS_X + i])
dev->absmax[ABS_X + i] = val;
#endif
if (i%3) val = dev->absmax[ABS_X + i] - val;
input_report_abs(dev, ABS_X + i, val);
} else {
val = (int) (((int8_t)lo) | ((int8_t)hi<<8));
if (i%3)
val *= -1;
input_report_rel(dev, REL_X + i, val);
}
}
while (cnt < idx - 1) {
unsigned int btn;
int up;
btn = ptr->data[cnt++];
up = btn & 1;
btn &= 0xfe;
if (btn == 0x8e)
continue; /* TODO: proximity == touch? */
else
if ((btn > 0x8c) || (btn < 0x80))
continue;
btn = (btn - 0x80) >> 1;
btn = ptr->btnmap[btn];
input_report_key(dev, btn, !up);
}
input_sync(dev);
out:
ptr->idx4 = 0;
up(&ptr->sem);
}
static void hil_ptr_process_err(struct hil_ptr *ptr)
{
printk(KERN_WARNING PREFIX "errored HIL packet\n");
ptr->idx4 = 0;
up(&ptr->sem);
}
static irqreturn_t hil_ptr_interrupt(struct serio *serio,
unsigned char data, unsigned int flags)
{
struct hil_ptr *ptr;
hil_packet packet;
int idx;
ptr = serio_get_drvdata(serio);
BUG_ON(ptr == NULL);
if (ptr->idx4 >= (HIL_PTR_MAX_LENGTH * sizeof(hil_packet))) {
hil_ptr_process_err(ptr);
return IRQ_HANDLED;
}
idx = ptr->idx4/4;
if (!(ptr->idx4 % 4))
ptr->data[idx] = 0;
packet = ptr->data[idx];
packet |= ((hil_packet)data) << ((3 - (ptr->idx4 % 4)) * 8);
ptr->data[idx] = packet;
/* Records of N 4-byte hil_packets must terminate with a command. */
if ((++(ptr->idx4)) % 4)
return IRQ_HANDLED;
if ((packet & 0xffff0000) != HIL_ERR_INT) {
hil_ptr_process_err(ptr);
return IRQ_HANDLED;
}
if (packet & HIL_PKT_CMD)
hil_ptr_process_record(ptr);
return IRQ_HANDLED;
}
static void hil_ptr_disconnect(struct serio *serio)
{
struct hil_ptr *ptr;
ptr = serio_get_drvdata(serio);
BUG_ON(ptr == NULL);
serio_close(serio);
input_unregister_device(ptr->dev);
kfree(ptr);
}
static int hil_ptr_connect(struct serio *serio, struct serio_driver *driver)
{
struct hil_ptr *ptr;
const char *txt;
unsigned int i, naxsets, btntype;
uint8_t did, *idd;
int error;
ptr = kzalloc(sizeof(struct hil_ptr), GFP_KERNEL);
if (!ptr)
return -ENOMEM;
ptr->dev = input_allocate_device();
if (!ptr->dev) {
error = -ENOMEM;
goto bail0;
}
error = serio_open(serio, driver);
if (error)
goto bail1;
serio_set_drvdata(serio, ptr);
ptr->serio = serio;
init_MUTEX_LOCKED(&ptr->sem);
/* Get device info. MLC driver supplies devid/status/etc. */
serio_write(serio, 0);
serio_write(serio, 0);
serio_write(serio, HIL_PKT_CMD >> 8);
serio_write(serio, HIL_CMD_IDD);
down(&ptr->sem);
serio_write(serio, 0);
serio_write(serio, 0);
serio_write(serio, HIL_PKT_CMD >> 8);
serio_write(serio, HIL_CMD_RSC);
down(&ptr->sem);
serio_write(serio, 0);
serio_write(serio, 0);
serio_write(serio, HIL_PKT_CMD >> 8);
serio_write(serio, HIL_CMD_RNM);
down(&ptr->sem);
serio_write(serio, 0);
serio_write(serio, 0);
serio_write(serio, HIL_PKT_CMD >> 8);
serio_write(serio, HIL_CMD_EXD);
down(&ptr->sem);
up(&ptr->sem);
did = ptr->idd[0];
idd = ptr->idd + 1;
txt = "unknown";
if ((did & HIL_IDD_DID_TYPE_MASK) == HIL_IDD_DID_TYPE_REL) {
ptr->dev->evbit[0] = BIT_MASK(EV_REL);
txt = "relative";
}
if ((did & HIL_IDD_DID_TYPE_MASK) == HIL_IDD_DID_TYPE_ABS) {
ptr->dev->evbit[0] = BIT_MASK(EV_ABS);
txt = "absolute";
}
if (!ptr->dev->evbit[0]) {
error = -ENODEV;
goto bail2;
}
ptr->nbtn = HIL_IDD_NUM_BUTTONS(idd);
if (ptr->nbtn)
ptr->dev->evbit[0] |= BIT_MASK(EV_KEY);
naxsets = HIL_IDD_NUM_AXSETS(*idd);
ptr->naxes = HIL_IDD_NUM_AXES_PER_SET(*idd);
printk(KERN_INFO PREFIX "HIL pointer device found (did: 0x%02x, axis: %s)\n",
did, txt);
printk(KERN_INFO PREFIX "HIL pointer has %i buttons and %i sets of %i axes\n",
ptr->nbtn, naxsets, ptr->naxes);
btntype = BTN_MISC;
if ((did & HIL_IDD_DID_ABS_TABLET_MASK) == HIL_IDD_DID_ABS_TABLET)
#ifdef TABLET_SIMULATES_MOUSE
btntype = BTN_TOUCH;
#else
btntype = BTN_DIGI;
#endif
if ((did & HIL_IDD_DID_ABS_TSCREEN_MASK) == HIL_IDD_DID_ABS_TSCREEN)
btntype = BTN_TOUCH;
if ((did & HIL_IDD_DID_REL_MOUSE_MASK) == HIL_IDD_DID_REL_MOUSE)
btntype = BTN_MOUSE;
for (i = 0; i < ptr->nbtn; i++) {
set_bit(btntype | i, ptr->dev->keybit);
ptr->btnmap[i] = btntype | i;
}
if (btntype == BTN_MOUSE) {
/* Swap buttons 2 and 3 */
ptr->btnmap[1] = BTN_MIDDLE;
ptr->btnmap[2] = BTN_RIGHT;
}
if ((did & HIL_IDD_DID_TYPE_MASK) == HIL_IDD_DID_TYPE_REL) {
for (i = 0; i < ptr->naxes; i++)
set_bit(REL_X + i, ptr->dev->relbit);
for (i = 3; (i < ptr->naxes + 3) && (naxsets > 1); i++)
set_bit(REL_X + i, ptr->dev->relbit);
} else {
for (i = 0; i < ptr->naxes; i++) {
set_bit(ABS_X + i, ptr->dev->absbit);
ptr->dev->absmin[ABS_X + i] = 0;
ptr->dev->absmax[ABS_X + i] =
HIL_IDD_AXIS_MAX((ptr->idd + 1), i);
}
for (i = 3; (i < ptr->naxes + 3) && (naxsets > 1); i++) {
set_bit(ABS_X + i, ptr->dev->absbit);
ptr->dev->absmin[ABS_X + i] = 0;
ptr->dev->absmax[ABS_X + i] =
HIL_IDD_AXIS_MAX((ptr->idd + 1), (i - 3));
}
#ifdef TABLET_AUTOADJUST
for (i = 0; i < ABS_MAX; i++) {
int diff = ptr->dev->absmax[ABS_X + i] / 10;
ptr->dev->absmin[ABS_X + i] += diff;
ptr->dev->absmax[ABS_X + i] -= diff;
}
#endif
}
ptr->dev->name = strlen(ptr->rnm) ? ptr->rnm : HIL_GENERIC_NAME;
ptr->dev->id.bustype = BUS_HIL;
ptr->dev->id.vendor = PCI_VENDOR_ID_HP;
ptr->dev->id.product = 0x0001; /* TODO: get from ptr->rsc */
ptr->dev->id.version = 0x0100; /* TODO: get from ptr->rsc */
ptr->dev->dev.parent = &serio->dev;
error = input_register_device(ptr->dev);
if (error) {
printk(KERN_INFO PREFIX "Unable to register input device\n");
goto bail2;
}
printk(KERN_INFO "input: %s (%s), ID: %d\n",
ptr->dev->name,
(btntype == BTN_MOUSE) ? "HIL mouse":"HIL tablet or touchpad",
did);
return 0;
bail2:
serio_close(serio);
bail1:
input_free_device(ptr->dev);
bail0:
kfree(ptr);
serio_set_drvdata(serio, NULL);
return error;
}
static struct serio_device_id hil_ptr_ids[] = {
{
.type = SERIO_HIL_MLC,
.proto = SERIO_HIL,
.id = SERIO_ANY,
.extra = SERIO_ANY,
},
{ 0 }
};
static struct serio_driver hil_ptr_serio_driver = {
.driver = {
.name = "hil_ptr",
},
.description = "HP HIL mouse/tablet driver",
.id_table = hil_ptr_ids,
.connect = hil_ptr_connect,
.disconnect = hil_ptr_disconnect,
.interrupt = hil_ptr_interrupt
};
static int __init hil_ptr_init(void)
{
return serio_register_driver(&hil_ptr_serio_driver);
}
static void __exit hil_ptr_exit(void)
{
serio_unregister_driver(&hil_ptr_serio_driver);
}
module_init(hil_ptr_init);
module_exit(hil_ptr_exit);