| /* |
| * 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 |
| * |
| * Should you need to contact me, the author, you can do so either by |
| * email or by paper mail: |
| * Jan-Benedict Glaw, Lilienstraße 16, 33790 Hörste (near Halle/Westf.), |
| * Germany. |
| */ |
| |
| #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 fail1; |
| } |
| |
| 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 fail2; |
| |
| err = input_register_device (lk->dev); |
| if (err) |
| goto fail3; |
| |
| lk->serio->write (lk->serio, LK_CMD_POWERCYCLE_RESET); |
| |
| return 0; |
| |
| fail3: serio_close (serio); |
| fail2: serio_set_drvdata (serio, NULL); |
| fail1: 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) |
| { |
| return serio_register_driver(&lkkbd_drv); |
| } |
| |
| static void __exit |
| lkkbd_exit (void) |
| { |
| serio_unregister_driver(&lkkbd_drv); |
| } |
| |
| module_init (lkkbd_init); |
| module_exit (lkkbd_exit); |
| |