forked from luck/tmp_suning_uos_patched
1d08811d0c
I moved to a different town and my old snail-mail address is invalid now. Also, there's no need at all to have any address like that in the sources, so remove it completely. Signed-off-by: Jan-Benedict Glaw <jbglaw@lug-owl.de>
765 lines
19 KiB
C
765 lines
19 KiB
C
/*
|
|
* Copyright (C) 2004 by Jan-Benedict Glaw <jbglaw@lug-owl.de>
|
|
*/
|
|
|
|
/*
|
|
* LK keyboard driver for Linux, based on sunkbd.c (C) by Vojtech Pavlik
|
|
*/
|
|
|
|
/*
|
|
* DEC LK201 and LK401 keyboard driver for Linux (primary for DECstations
|
|
* and VAXstations, but can also be used on any standard RS232 with an
|
|
* adaptor).
|
|
*
|
|
* DISCLAIMER: This works for _me_. If you break anything by using the
|
|
* information given below, I will _not_ be liable!
|
|
*
|
|
* RJ10 pinout: To DE9: Or DB25:
|
|
* 1 - RxD <----> Pin 3 (TxD) <-> Pin 2 (TxD)
|
|
* 2 - GND <----> Pin 5 (GND) <-> Pin 7 (GND)
|
|
* 4 - TxD <----> Pin 2 (RxD) <-> Pin 3 (RxD)
|
|
* 3 - +12V (from HDD drive connector), DON'T connect to DE9 or DB25!!!
|
|
*
|
|
* Pin numbers for DE9 and DB25 are noted on the plug (quite small:). For
|
|
* RJ10, it's like this:
|
|
*
|
|
* __=__ Hold the plug in front of you, cable downwards,
|
|
* /___/| nose is hidden behind the plug. Now, pin 1 is at
|
|
* |1234|| the left side, pin 4 at the right and 2 and 3 are
|
|
* |IIII|| in between, of course:)
|
|
* | ||
|
|
* |____|/
|
|
* || So the adaptor consists of three connected cables
|
|
* || for data transmission (RxD and TxD) and signal ground.
|
|
* Additionally, you have to get +12V from somewhere.
|
|
* Most easily, you'll get that from a floppy or HDD power connector.
|
|
* It's the yellow cable there (black is ground and red is +5V).
|
|
*
|
|
* The keyboard and all the commands it understands are documented in
|
|
* "VCB02 Video Subsystem - Technical Manual", EK-104AA-TM-001. This
|
|
* document is LK201 specific, but LK401 is mostly compatible. It comes
|
|
* up in LK201 mode and doesn't report any of the additional keys it
|
|
* has. These need to be switched on with the LK_CMD_ENABLE_LK401
|
|
* command. You'll find this document (scanned .pdf file) on MANX,
|
|
* a search engine specific to DEC documentation. Try
|
|
* http://www.vt100.net/manx/details?pn=EK-104AA-TM-001;id=21;cp=1
|
|
*/
|
|
|
|
/*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <linux/delay.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/init.h>
|
|
#include <linux/input.h>
|
|
#include <linux/serio.h>
|
|
#include <linux/workqueue.h>
|
|
|
|
#define DRIVER_DESC "LK keyboard driver"
|
|
|
|
MODULE_AUTHOR ("Jan-Benedict Glaw <jbglaw@lug-owl.de>");
|
|
MODULE_DESCRIPTION (DRIVER_DESC);
|
|
MODULE_LICENSE ("GPL");
|
|
|
|
/*
|
|
* Known parameters:
|
|
* bell_volume
|
|
* keyclick_volume
|
|
* ctrlclick_volume
|
|
*
|
|
* Please notice that there's not yet an API to set these at runtime.
|
|
*/
|
|
static int bell_volume = 100; /* % */
|
|
module_param (bell_volume, int, 0);
|
|
MODULE_PARM_DESC (bell_volume, "Bell volume (in %). default is 100%");
|
|
|
|
static int keyclick_volume = 100; /* % */
|
|
module_param (keyclick_volume, int, 0);
|
|
MODULE_PARM_DESC (keyclick_volume, "Keyclick volume (in %), default is 100%");
|
|
|
|
static int ctrlclick_volume = 100; /* % */
|
|
module_param (ctrlclick_volume, int, 0);
|
|
MODULE_PARM_DESC (ctrlclick_volume, "Ctrlclick volume (in %), default is 100%");
|
|
|
|
static int lk201_compose_is_alt;
|
|
module_param (lk201_compose_is_alt, int, 0);
|
|
MODULE_PARM_DESC (lk201_compose_is_alt, "If set non-zero, LK201' Compose key "
|
|
"will act as an Alt key");
|
|
|
|
|
|
|
|
#undef LKKBD_DEBUG
|
|
#ifdef LKKBD_DEBUG
|
|
#define DBG(x...) printk (x)
|
|
#else
|
|
#define DBG(x...) do {} while (0)
|
|
#endif
|
|
|
|
/* LED control */
|
|
#define LK_LED_WAIT 0x81
|
|
#define LK_LED_COMPOSE 0x82
|
|
#define LK_LED_SHIFTLOCK 0x84
|
|
#define LK_LED_SCROLLLOCK 0x88
|
|
#define LK_CMD_LED_ON 0x13
|
|
#define LK_CMD_LED_OFF 0x11
|
|
|
|
/* Mode control */
|
|
#define LK_MODE_DOWN 0x80
|
|
#define LK_MODE_AUTODOWN 0x82
|
|
#define LK_MODE_UPDOWN 0x86
|
|
#define LK_CMD_SET_MODE(mode,div) ((mode) | ((div) << 3))
|
|
|
|
/* Misc commands */
|
|
#define LK_CMD_ENABLE_KEYCLICK 0x1b
|
|
#define LK_CMD_DISABLE_KEYCLICK 0x99
|
|
#define LK_CMD_DISABLE_BELL 0xa1
|
|
#define LK_CMD_SOUND_BELL 0xa7
|
|
#define LK_CMD_ENABLE_BELL 0x23
|
|
#define LK_CMD_DISABLE_CTRCLICK 0xb9
|
|
#define LK_CMD_ENABLE_CTRCLICK 0xbb
|
|
#define LK_CMD_SET_DEFAULTS 0xd3
|
|
#define LK_CMD_POWERCYCLE_RESET 0xfd
|
|
#define LK_CMD_ENABLE_LK401 0xe9
|
|
#define LK_CMD_REQUEST_ID 0xab
|
|
|
|
/* Misc responses from keyboard */
|
|
#define LK_STUCK_KEY 0x3d
|
|
#define LK_SELFTEST_FAILED 0x3e
|
|
#define LK_ALL_KEYS_UP 0xb3
|
|
#define LK_METRONOME 0xb4
|
|
#define LK_OUTPUT_ERROR 0xb5
|
|
#define LK_INPUT_ERROR 0xb6
|
|
#define LK_KBD_LOCKED 0xb7
|
|
#define LK_KBD_TEST_MODE_ACK 0xb8
|
|
#define LK_PREFIX_KEY_DOWN 0xb9
|
|
#define LK_MODE_CHANGE_ACK 0xba
|
|
#define LK_RESPONSE_RESERVED 0xbb
|
|
|
|
#define LK_NUM_KEYCODES 256
|
|
#define LK_NUM_IGNORE_BYTES 6
|
|
typedef u_int16_t lk_keycode_t;
|
|
|
|
|
|
|
|
static lk_keycode_t lkkbd_keycode[LK_NUM_KEYCODES] = {
|
|
[0x56] = KEY_F1,
|
|
[0x57] = KEY_F2,
|
|
[0x58] = KEY_F3,
|
|
[0x59] = KEY_F4,
|
|
[0x5a] = KEY_F5,
|
|
[0x64] = KEY_F6,
|
|
[0x65] = KEY_F7,
|
|
[0x66] = KEY_F8,
|
|
[0x67] = KEY_F9,
|
|
[0x68] = KEY_F10,
|
|
[0x71] = KEY_F11,
|
|
[0x72] = KEY_F12,
|
|
[0x73] = KEY_F13,
|
|
[0x74] = KEY_F14,
|
|
[0x7c] = KEY_F15,
|
|
[0x7d] = KEY_F16,
|
|
[0x80] = KEY_F17,
|
|
[0x81] = KEY_F18,
|
|
[0x82] = KEY_F19,
|
|
[0x83] = KEY_F20,
|
|
[0x8a] = KEY_FIND,
|
|
[0x8b] = KEY_INSERT,
|
|
[0x8c] = KEY_DELETE,
|
|
[0x8d] = KEY_SELECT,
|
|
[0x8e] = KEY_PAGEUP,
|
|
[0x8f] = KEY_PAGEDOWN,
|
|
[0x92] = KEY_KP0,
|
|
[0x94] = KEY_KPDOT,
|
|
[0x95] = KEY_KPENTER,
|
|
[0x96] = KEY_KP1,
|
|
[0x97] = KEY_KP2,
|
|
[0x98] = KEY_KP3,
|
|
[0x99] = KEY_KP4,
|
|
[0x9a] = KEY_KP5,
|
|
[0x9b] = KEY_KP6,
|
|
[0x9c] = KEY_KPCOMMA,
|
|
[0x9d] = KEY_KP7,
|
|
[0x9e] = KEY_KP8,
|
|
[0x9f] = KEY_KP9,
|
|
[0xa0] = KEY_KPMINUS,
|
|
[0xa1] = KEY_PROG1,
|
|
[0xa2] = KEY_PROG2,
|
|
[0xa3] = KEY_PROG3,
|
|
[0xa4] = KEY_PROG4,
|
|
[0xa7] = KEY_LEFT,
|
|
[0xa8] = KEY_RIGHT,
|
|
[0xa9] = KEY_DOWN,
|
|
[0xaa] = KEY_UP,
|
|
[0xab] = KEY_RIGHTSHIFT,
|
|
[0xac] = KEY_LEFTALT,
|
|
[0xad] = KEY_COMPOSE, /* Right Compose, that is. */
|
|
[0xae] = KEY_LEFTSHIFT, /* Same as KEY_RIGHTSHIFT on LK201 */
|
|
[0xaf] = KEY_LEFTCTRL,
|
|
[0xb0] = KEY_CAPSLOCK,
|
|
[0xb1] = KEY_COMPOSE, /* Left Compose, that is. */
|
|
[0xb2] = KEY_RIGHTALT,
|
|
[0xbc] = KEY_BACKSPACE,
|
|
[0xbd] = KEY_ENTER,
|
|
[0xbe] = KEY_TAB,
|
|
[0xbf] = KEY_ESC,
|
|
[0xc0] = KEY_1,
|
|
[0xc1] = KEY_Q,
|
|
[0xc2] = KEY_A,
|
|
[0xc3] = KEY_Z,
|
|
[0xc5] = KEY_2,
|
|
[0xc6] = KEY_W,
|
|
[0xc7] = KEY_S,
|
|
[0xc8] = KEY_X,
|
|
[0xc9] = KEY_102ND,
|
|
[0xcb] = KEY_3,
|
|
[0xcc] = KEY_E,
|
|
[0xcd] = KEY_D,
|
|
[0xce] = KEY_C,
|
|
[0xd0] = KEY_4,
|
|
[0xd1] = KEY_R,
|
|
[0xd2] = KEY_F,
|
|
[0xd3] = KEY_V,
|
|
[0xd4] = KEY_SPACE,
|
|
[0xd6] = KEY_5,
|
|
[0xd7] = KEY_T,
|
|
[0xd8] = KEY_G,
|
|
[0xd9] = KEY_B,
|
|
[0xdb] = KEY_6,
|
|
[0xdc] = KEY_Y,
|
|
[0xdd] = KEY_H,
|
|
[0xde] = KEY_N,
|
|
[0xe0] = KEY_7,
|
|
[0xe1] = KEY_U,
|
|
[0xe2] = KEY_J,
|
|
[0xe3] = KEY_M,
|
|
[0xe5] = KEY_8,
|
|
[0xe6] = KEY_I,
|
|
[0xe7] = KEY_K,
|
|
[0xe8] = KEY_COMMA,
|
|
[0xea] = KEY_9,
|
|
[0xeb] = KEY_O,
|
|
[0xec] = KEY_L,
|
|
[0xed] = KEY_DOT,
|
|
[0xef] = KEY_0,
|
|
[0xf0] = KEY_P,
|
|
[0xf2] = KEY_SEMICOLON,
|
|
[0xf3] = KEY_SLASH,
|
|
[0xf5] = KEY_EQUAL,
|
|
[0xf6] = KEY_RIGHTBRACE,
|
|
[0xf7] = KEY_BACKSLASH,
|
|
[0xf9] = KEY_MINUS,
|
|
[0xfa] = KEY_LEFTBRACE,
|
|
[0xfb] = KEY_APOSTROPHE,
|
|
};
|
|
|
|
#define CHECK_LED(LK, VAR_ON, VAR_OFF, LED, BITS) do { \
|
|
if (test_bit (LED, (LK)->dev->led)) \
|
|
VAR_ON |= BITS; \
|
|
else \
|
|
VAR_OFF |= BITS; \
|
|
} while (0)
|
|
|
|
/*
|
|
* Per-keyboard data
|
|
*/
|
|
struct lkkbd {
|
|
lk_keycode_t keycode[LK_NUM_KEYCODES];
|
|
int ignore_bytes;
|
|
unsigned char id[LK_NUM_IGNORE_BYTES];
|
|
struct input_dev *dev;
|
|
struct serio *serio;
|
|
struct work_struct tq;
|
|
char name[64];
|
|
char phys[32];
|
|
char type;
|
|
int bell_volume;
|
|
int keyclick_volume;
|
|
int ctrlclick_volume;
|
|
};
|
|
|
|
#ifdef LKKBD_DEBUG
|
|
/*
|
|
* Responses from the keyboard and mapping back to their names.
|
|
*/
|
|
static struct {
|
|
unsigned char value;
|
|
unsigned char *name;
|
|
} lk_response[] = {
|
|
#define RESPONSE(x) { .value = (x), .name = #x, }
|
|
RESPONSE (LK_STUCK_KEY),
|
|
RESPONSE (LK_SELFTEST_FAILED),
|
|
RESPONSE (LK_ALL_KEYS_UP),
|
|
RESPONSE (LK_METRONOME),
|
|
RESPONSE (LK_OUTPUT_ERROR),
|
|
RESPONSE (LK_INPUT_ERROR),
|
|
RESPONSE (LK_KBD_LOCKED),
|
|
RESPONSE (LK_KBD_TEST_MODE_ACK),
|
|
RESPONSE (LK_PREFIX_KEY_DOWN),
|
|
RESPONSE (LK_MODE_CHANGE_ACK),
|
|
RESPONSE (LK_RESPONSE_RESERVED),
|
|
#undef RESPONSE
|
|
};
|
|
|
|
static unsigned char *
|
|
response_name (unsigned char value)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE (lk_response); i++)
|
|
if (lk_response[i].value == value)
|
|
return lk_response[i].name;
|
|
|
|
return "<unknown>";
|
|
}
|
|
#endif /* LKKBD_DEBUG */
|
|
|
|
/*
|
|
* Calculate volume parameter byte for a given volume.
|
|
*/
|
|
static unsigned char
|
|
volume_to_hw (int volume_percent)
|
|
{
|
|
unsigned char ret = 0;
|
|
|
|
if (volume_percent < 0)
|
|
volume_percent = 0;
|
|
if (volume_percent > 100)
|
|
volume_percent = 100;
|
|
|
|
if (volume_percent >= 0)
|
|
ret = 7;
|
|
if (volume_percent >= 13) /* 12.5 */
|
|
ret = 6;
|
|
if (volume_percent >= 25)
|
|
ret = 5;
|
|
if (volume_percent >= 38) /* 37.5 */
|
|
ret = 4;
|
|
if (volume_percent >= 50)
|
|
ret = 3;
|
|
if (volume_percent >= 63) /* 62.5 */
|
|
ret = 2; /* This is the default volume */
|
|
if (volume_percent >= 75)
|
|
ret = 1;
|
|
if (volume_percent >= 88) /* 87.5 */
|
|
ret = 0;
|
|
|
|
ret |= 0x80;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
lkkbd_detection_done (struct lkkbd *lk)
|
|
{
|
|
int i;
|
|
|
|
/*
|
|
* Reset setting for Compose key. Let Compose be KEY_COMPOSE.
|
|
*/
|
|
lk->keycode[0xb1] = KEY_COMPOSE;
|
|
|
|
/*
|
|
* Print keyboard name and modify Compose=Alt on user's request.
|
|
*/
|
|
switch (lk->id[4]) {
|
|
case 1:
|
|
strlcpy (lk->name, "DEC LK201 keyboard",
|
|
sizeof (lk->name));
|
|
|
|
if (lk201_compose_is_alt)
|
|
lk->keycode[0xb1] = KEY_LEFTALT;
|
|
break;
|
|
|
|
case 2:
|
|
strlcpy (lk->name, "DEC LK401 keyboard",
|
|
sizeof (lk->name));
|
|
break;
|
|
|
|
default:
|
|
strlcpy (lk->name, "Unknown DEC keyboard",
|
|
sizeof (lk->name));
|
|
printk (KERN_ERR "lkkbd: keyboard on %s is unknown, "
|
|
"please report to Jan-Benedict Glaw "
|
|
"<jbglaw@lug-owl.de>\n", lk->phys);
|
|
printk (KERN_ERR "lkkbd: keyboard ID'ed as:");
|
|
for (i = 0; i < LK_NUM_IGNORE_BYTES; i++)
|
|
printk (" 0x%02x", lk->id[i]);
|
|
printk ("\n");
|
|
break;
|
|
}
|
|
printk (KERN_INFO "lkkbd: keyboard on %s identified as: %s\n",
|
|
lk->phys, lk->name);
|
|
|
|
/*
|
|
* Report errors during keyboard boot-up.
|
|
*/
|
|
switch (lk->id[2]) {
|
|
case 0x00:
|
|
/* All okay */
|
|
break;
|
|
|
|
case LK_STUCK_KEY:
|
|
printk (KERN_ERR "lkkbd: Stuck key on keyboard at "
|
|
"%s\n", lk->phys);
|
|
break;
|
|
|
|
case LK_SELFTEST_FAILED:
|
|
printk (KERN_ERR "lkkbd: Selftest failed on keyboard "
|
|
"at %s, keyboard may not work "
|
|
"properly\n", lk->phys);
|
|
break;
|
|
|
|
default:
|
|
printk (KERN_ERR "lkkbd: Unknown error %02x on "
|
|
"keyboard at %s\n", lk->id[2],
|
|
lk->phys);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Try to hint user if there's a stuck key.
|
|
*/
|
|
if (lk->id[2] == LK_STUCK_KEY && lk->id[3] != 0)
|
|
printk (KERN_ERR "Scancode of stuck key is 0x%02x, keycode "
|
|
"is 0x%04x\n", lk->id[3],
|
|
lk->keycode[lk->id[3]]);
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* lkkbd_interrupt() is called by the low level driver when a character
|
|
* is received.
|
|
*/
|
|
static irqreturn_t
|
|
lkkbd_interrupt (struct serio *serio, unsigned char data, unsigned int flags)
|
|
{
|
|
struct lkkbd *lk = serio_get_drvdata (serio);
|
|
int i;
|
|
|
|
DBG (KERN_INFO "Got byte 0x%02x\n", data);
|
|
|
|
if (lk->ignore_bytes > 0) {
|
|
DBG (KERN_INFO "Ignoring a byte on %s\n", lk->name);
|
|
lk->id[LK_NUM_IGNORE_BYTES - lk->ignore_bytes--] = data;
|
|
|
|
if (lk->ignore_bytes == 0)
|
|
lkkbd_detection_done (lk);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
switch (data) {
|
|
case LK_ALL_KEYS_UP:
|
|
for (i = 0; i < ARRAY_SIZE (lkkbd_keycode); i++)
|
|
if (lk->keycode[i] != KEY_RESERVED)
|
|
input_report_key (lk->dev, lk->keycode[i], 0);
|
|
input_sync (lk->dev);
|
|
break;
|
|
|
|
case 0x01:
|
|
DBG (KERN_INFO "Got 0x01, scheduling re-initialization\n");
|
|
lk->ignore_bytes = LK_NUM_IGNORE_BYTES;
|
|
lk->id[LK_NUM_IGNORE_BYTES - lk->ignore_bytes--] = data;
|
|
schedule_work (&lk->tq);
|
|
break;
|
|
|
|
case LK_METRONOME:
|
|
case LK_OUTPUT_ERROR:
|
|
case LK_INPUT_ERROR:
|
|
case LK_KBD_LOCKED:
|
|
case LK_KBD_TEST_MODE_ACK:
|
|
case LK_PREFIX_KEY_DOWN:
|
|
case LK_MODE_CHANGE_ACK:
|
|
case LK_RESPONSE_RESERVED:
|
|
DBG (KERN_INFO "Got %s and don't know how to handle...\n",
|
|
response_name (data));
|
|
break;
|
|
|
|
default:
|
|
if (lk->keycode[data] != KEY_RESERVED) {
|
|
if (!test_bit (lk->keycode[data], lk->dev->key))
|
|
input_report_key (lk->dev, lk->keycode[data], 1);
|
|
else
|
|
input_report_key (lk->dev, lk->keycode[data], 0);
|
|
input_sync (lk->dev);
|
|
} else
|
|
printk (KERN_WARNING "%s: Unknown key with "
|
|
"scancode 0x%02x on %s.\n",
|
|
__FILE__, data, lk->name);
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/*
|
|
* lkkbd_event() handles events from the input module.
|
|
*/
|
|
static int
|
|
lkkbd_event (struct input_dev *dev, unsigned int type, unsigned int code,
|
|
int value)
|
|
{
|
|
struct lkkbd *lk = dev->private;
|
|
unsigned char leds_on = 0;
|
|
unsigned char leds_off = 0;
|
|
|
|
switch (type) {
|
|
case EV_LED:
|
|
CHECK_LED (lk, leds_on, leds_off, LED_CAPSL, LK_LED_SHIFTLOCK);
|
|
CHECK_LED (lk, leds_on, leds_off, LED_COMPOSE, LK_LED_COMPOSE);
|
|
CHECK_LED (lk, leds_on, leds_off, LED_SCROLLL, LK_LED_SCROLLLOCK);
|
|
CHECK_LED (lk, leds_on, leds_off, LED_SLEEP, LK_LED_WAIT);
|
|
if (leds_on != 0) {
|
|
lk->serio->write (lk->serio, LK_CMD_LED_ON);
|
|
lk->serio->write (lk->serio, leds_on);
|
|
}
|
|
if (leds_off != 0) {
|
|
lk->serio->write (lk->serio, LK_CMD_LED_OFF);
|
|
lk->serio->write (lk->serio, leds_off);
|
|
}
|
|
return 0;
|
|
|
|
case EV_SND:
|
|
switch (code) {
|
|
case SND_CLICK:
|
|
if (value == 0) {
|
|
DBG ("%s: Deactivating key clicks\n", __FUNCTION__);
|
|
lk->serio->write (lk->serio, LK_CMD_DISABLE_KEYCLICK);
|
|
lk->serio->write (lk->serio, LK_CMD_DISABLE_CTRCLICK);
|
|
} else {
|
|
DBG ("%s: Activating key clicks\n", __FUNCTION__);
|
|
lk->serio->write (lk->serio, LK_CMD_ENABLE_KEYCLICK);
|
|
lk->serio->write (lk->serio, volume_to_hw (lk->keyclick_volume));
|
|
lk->serio->write (lk->serio, LK_CMD_ENABLE_CTRCLICK);
|
|
lk->serio->write (lk->serio, volume_to_hw (lk->ctrlclick_volume));
|
|
}
|
|
return 0;
|
|
|
|
case SND_BELL:
|
|
if (value != 0)
|
|
lk->serio->write (lk->serio, LK_CMD_SOUND_BELL);
|
|
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
printk (KERN_ERR "%s (): Got unknown type %d, code %d, value %d\n",
|
|
__FUNCTION__, type, code, value);
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* lkkbd_reinit() sets leds and beeps to a state the computer remembers they
|
|
* were in.
|
|
*/
|
|
static void
|
|
lkkbd_reinit (void *data)
|
|
{
|
|
struct lkkbd *lk = data;
|
|
int division;
|
|
unsigned char leds_on = 0;
|
|
unsigned char leds_off = 0;
|
|
|
|
/* Ask for ID */
|
|
lk->serio->write (lk->serio, LK_CMD_REQUEST_ID);
|
|
|
|
/* Reset parameters */
|
|
lk->serio->write (lk->serio, LK_CMD_SET_DEFAULTS);
|
|
|
|
/* Set LEDs */
|
|
CHECK_LED (lk, leds_on, leds_off, LED_CAPSL, LK_LED_SHIFTLOCK);
|
|
CHECK_LED (lk, leds_on, leds_off, LED_COMPOSE, LK_LED_COMPOSE);
|
|
CHECK_LED (lk, leds_on, leds_off, LED_SCROLLL, LK_LED_SCROLLLOCK);
|
|
CHECK_LED (lk, leds_on, leds_off, LED_SLEEP, LK_LED_WAIT);
|
|
if (leds_on != 0) {
|
|
lk->serio->write (lk->serio, LK_CMD_LED_ON);
|
|
lk->serio->write (lk->serio, leds_on);
|
|
}
|
|
if (leds_off != 0) {
|
|
lk->serio->write (lk->serio, LK_CMD_LED_OFF);
|
|
lk->serio->write (lk->serio, leds_off);
|
|
}
|
|
|
|
/*
|
|
* Try to activate extended LK401 mode. This command will
|
|
* only work with a LK401 keyboard and grants access to
|
|
* LAlt, RAlt, RCompose and RShift.
|
|
*/
|
|
lk->serio->write (lk->serio, LK_CMD_ENABLE_LK401);
|
|
|
|
/* Set all keys to UPDOWN mode */
|
|
for (division = 1; division <= 14; division++)
|
|
lk->serio->write (lk->serio, LK_CMD_SET_MODE (LK_MODE_UPDOWN,
|
|
division));
|
|
|
|
/* Enable bell and set volume */
|
|
lk->serio->write (lk->serio, LK_CMD_ENABLE_BELL);
|
|
lk->serio->write (lk->serio, volume_to_hw (lk->bell_volume));
|
|
|
|
/* Enable/disable keyclick (and possibly set volume) */
|
|
if (test_bit (SND_CLICK, lk->dev->snd)) {
|
|
lk->serio->write (lk->serio, LK_CMD_ENABLE_KEYCLICK);
|
|
lk->serio->write (lk->serio, volume_to_hw (lk->keyclick_volume));
|
|
lk->serio->write (lk->serio, LK_CMD_ENABLE_CTRCLICK);
|
|
lk->serio->write (lk->serio, volume_to_hw (lk->ctrlclick_volume));
|
|
} else {
|
|
lk->serio->write (lk->serio, LK_CMD_DISABLE_KEYCLICK);
|
|
lk->serio->write (lk->serio, LK_CMD_DISABLE_CTRCLICK);
|
|
}
|
|
|
|
/* Sound the bell if needed */
|
|
if (test_bit (SND_BELL, lk->dev->snd))
|
|
lk->serio->write (lk->serio, LK_CMD_SOUND_BELL);
|
|
}
|
|
|
|
/*
|
|
* lkkbd_connect() probes for a LK keyboard and fills the necessary structures.
|
|
*/
|
|
static int
|
|
lkkbd_connect (struct serio *serio, struct serio_driver *drv)
|
|
{
|
|
struct lkkbd *lk;
|
|
struct input_dev *input_dev;
|
|
int i;
|
|
int err;
|
|
|
|
lk = kzalloc (sizeof (struct lkkbd), GFP_KERNEL);
|
|
input_dev = input_allocate_device ();
|
|
if (!lk || !input_dev) {
|
|
err = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
lk->serio = serio;
|
|
lk->dev = input_dev;
|
|
INIT_WORK (&lk->tq, lkkbd_reinit, lk);
|
|
lk->bell_volume = bell_volume;
|
|
lk->keyclick_volume = keyclick_volume;
|
|
lk->ctrlclick_volume = ctrlclick_volume;
|
|
memcpy (lk->keycode, lkkbd_keycode, sizeof (lk_keycode_t) * LK_NUM_KEYCODES);
|
|
|
|
strlcpy (lk->name, "DEC LK keyboard", sizeof(lk->name));
|
|
snprintf (lk->phys, sizeof(lk->phys), "%s/input0", serio->phys);
|
|
|
|
input_dev->name = lk->name;
|
|
input_dev->phys = lk->phys;
|
|
input_dev->id.bustype = BUS_RS232;
|
|
input_dev->id.vendor = SERIO_LKKBD;
|
|
input_dev->id.product = 0;
|
|
input_dev->id.version = 0x0100;
|
|
input_dev->cdev.dev = &serio->dev;
|
|
input_dev->event = lkkbd_event;
|
|
input_dev->private = lk;
|
|
|
|
set_bit (EV_KEY, input_dev->evbit);
|
|
set_bit (EV_LED, input_dev->evbit);
|
|
set_bit (EV_SND, input_dev->evbit);
|
|
set_bit (EV_REP, input_dev->evbit);
|
|
set_bit (LED_CAPSL, input_dev->ledbit);
|
|
set_bit (LED_SLEEP, input_dev->ledbit);
|
|
set_bit (LED_COMPOSE, input_dev->ledbit);
|
|
set_bit (LED_SCROLLL, input_dev->ledbit);
|
|
set_bit (SND_BELL, input_dev->sndbit);
|
|
set_bit (SND_CLICK, input_dev->sndbit);
|
|
|
|
input_dev->keycode = lk->keycode;
|
|
input_dev->keycodesize = sizeof (lk_keycode_t);
|
|
input_dev->keycodemax = LK_NUM_KEYCODES;
|
|
for (i = 0; i < LK_NUM_KEYCODES; i++)
|
|
set_bit (lk->keycode[i], input_dev->keybit);
|
|
|
|
serio_set_drvdata (serio, lk);
|
|
|
|
err = serio_open (serio, drv);
|
|
if (err)
|
|
goto fail;
|
|
|
|
input_register_device (lk->dev);
|
|
lk->serio->write (lk->serio, LK_CMD_POWERCYCLE_RESET);
|
|
|
|
return 0;
|
|
|
|
fail: serio_set_drvdata (serio, NULL);
|
|
input_free_device (input_dev);
|
|
kfree (lk);
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* lkkbd_disconnect() unregisters and closes behind us.
|
|
*/
|
|
static void
|
|
lkkbd_disconnect (struct serio *serio)
|
|
{
|
|
struct lkkbd *lk = serio_get_drvdata (serio);
|
|
|
|
input_get_device (lk->dev);
|
|
input_unregister_device (lk->dev);
|
|
serio_close (serio);
|
|
serio_set_drvdata (serio, NULL);
|
|
input_put_device (lk->dev);
|
|
kfree (lk);
|
|
}
|
|
|
|
static struct serio_device_id lkkbd_serio_ids[] = {
|
|
{
|
|
.type = SERIO_RS232,
|
|
.proto = SERIO_LKKBD,
|
|
.id = SERIO_ANY,
|
|
.extra = SERIO_ANY,
|
|
},
|
|
{ 0 }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(serio, lkkbd_serio_ids);
|
|
|
|
static struct serio_driver lkkbd_drv = {
|
|
.driver = {
|
|
.name = "lkkbd",
|
|
},
|
|
.description = DRIVER_DESC,
|
|
.id_table = lkkbd_serio_ids,
|
|
.connect = lkkbd_connect,
|
|
.disconnect = lkkbd_disconnect,
|
|
.interrupt = lkkbd_interrupt,
|
|
};
|
|
|
|
/*
|
|
* The functions for insering/removing us as a module.
|
|
*/
|
|
static int __init
|
|
lkkbd_init (void)
|
|
{
|
|
serio_register_driver(&lkkbd_drv);
|
|
return 0;
|
|
}
|
|
|
|
static void __exit
|
|
lkkbd_exit (void)
|
|
{
|
|
serio_unregister_driver(&lkkbd_drv);
|
|
}
|
|
|
|
module_init (lkkbd_init);
|
|
module_exit (lkkbd_exit);
|
|
|