diff options
Diffstat (limited to 'protocol/iwrap')
| -rw-r--r-- | protocol/iwrap/iWRAP.txt | 376 | ||||
| -rw-r--r-- | protocol/iwrap/iwrap.c | 467 | ||||
| -rw-r--r-- | protocol/iwrap/iwrap.h | 49 | ||||
| -rw-r--r-- | protocol/iwrap/main.c | 378 | ||||
| -rw-r--r-- | protocol/iwrap/suart.S | 156 | ||||
| -rw-r--r-- | protocol/iwrap/suart.h | 8 | ||||
| -rw-r--r-- | protocol/iwrap/wd.h | 159 |
7 files changed, 1593 insertions, 0 deletions
diff --git a/protocol/iwrap/iWRAP.txt b/protocol/iwrap/iWRAP.txt new file mode 100644 index 000000000..2a062d9d9 --- /dev/null +++ b/protocol/iwrap/iWRAP.txt @@ -0,0 +1,376 @@ +Bulegiga WT12 +============= +WT12 is a bluetooth module from Bluegiga. http://www.bluegiga.com/ + +iWRAP + higher layer interface for bluetooth firmware + communicate with UART + +iWRAP HID +default setting + 115200 8bit/n/1/n + + +TODO +---- +KiCAD circuit/PCB design +power saving + AVR sleep(15ms by watch dog timer) + WT12 sleep + measuring current consumption + measuring battery life of normal usage/idle/intensive usage +software reset/bootloarder +LED indicator(chaging/paring/connecting) +license confirmation of suart.c +consumer page is not working +authenticate method/SSP +SPP keyboard support +SPP debug console support +mouse wheel feature request to Bluegiga + + +Problems +-------- +power consumption +no consumer page support(bug?) +no mouse wheel support +no paring management +no interactive auth method + + +UART hardware flow control +-------------------------- +(iWRAP4 User Guide 9.5) +Hardware flow control is enabled by default and it should not be disabled unless mandatory, because without the hardware flow control the data transmission may not be reliable. +If the hardware flow control is enabled from PS-keys, but no flow control is used, the following steps should be implemented in the hardware design: +- CTS pin must be grounded +- RTS pin must be left floating + + +Power Saving +------------ +power consume + without opimization: 4hr to shutdown(310mAh) + 2011/08/25: 9hr(310mAh) SNIFF MASTER sleep/WDTO_120MS + +measure current consumption + HHKB keyswitch matrix board + idle + scanning + Bluegiga WT12 module + SLEEP command + deep sleep on/off in config bits + +HHKB keyswich + how to power off + I/O pin configuration when sleeping + FET switch for 5V regulator + +Bluetooth module + power off when in USB mode + power off by FET switch + +AVR configuration + unused pins + ADC + + + +SET CONTROL CONFIG +------------------ + SET CONTROL CONFIG 4810 + SET CONTROL CONFIG LIST + SET CONTROL CONFIG 0000 0000 4910 DEEP_SLEEP KLUDGE INTERACTIVE_PIN UART_LATENCY + + Bit14 UART low latency + Bit11 Interactive pairing mode + Bit04 Deep sleep + + +Reconnection +------------ +SET CONTROL AUTOCALL 1124 5000 HID + 1124 HID service class + 5000 interval ms + +HID profile +----------- +This is needed to configure only once. + SET PROFILE HID ON + RESET + +HID class +--------- + SET BT CLASS 005C0 // keyboard/mouse combined devie + +Pairing Security +---------------- +Secure Simple Pairing(SSP) + SET BT SSP 2 0 // Enables SSP for keyboard and Man-in-the-middle protection + SET BT SSP 3 0 // Enables SSP just works mode + +for keyboard with SSP + SET BT AUTH * 0000 + SET BT SSP 2 0 + SET CONTROL CONFIG 800 + RESET + +for keyboard without SSP + SET BT AUTH * 0000 + SET CONTROL CONFIG 800 + RESET + +AUTH + AUTH xx:xx:xx:xx:xx:xx? // Pairing request event + AUTH xx:xx:xx:xx:xx:xx 0000 + + SSP PASSKEY 78:dd:08:b7:e4:a2 ? + SSP PASSKEY 78:dd:08:b7:e4:a2 xxxxx + (SSP COMPLETE 78:dd:08:b7:e4:a2 HCI_ERROR_AUTH_FAIL // failed) + RING 0 78:dd:08:b7:e4:a2 11 HID + +Connecton + RING xx:xx:xx:xx:xx:xx xx HID // connection event + + KILL xx:xx:xx:xx:xx:xx + +Mode +---- +Command mode +Data mode + Raw mode + (Simple mode not for a real keyboard) + +Raw mode + Keyboard: + 0x9f, length(10), 0xa1, 0x01, mods, 0x00, key1, key2, key3, key4, key5, key6 + + Mouse: + 0x9f, length(5), 0xa1, 0x02, buttons, X, Y + + Consumer page: + 0x9f, length(5), 0xa1, 0x03, bitfield1, bitfield2, bitfield3 + + consumer page suage + Bitfield 1: + 0x01 Volume Increment + 0x02 Volume Decrement + 0x04 Mute + 0x08 Play/Pause + 0x10 Scan Next Track + 0x20 Scan Previous Track + 0x40 Stop + 0x80 Eject + Bitfield 2: + 0x01 Email Reader + 0x02 Application Control Search + 0x04 AC Bookmarks + 0x08 AC Home + 0x10 AC Back + 0x20 AC Forward + 0x40 AC Stop + 0x80 AC Refresh + Bitfield 3: + 0x01 Application Launch Generic Consumer Control + 0x02 AL Internet Browser + 0x04 AL Calculator + 0x08 AL Terminal Lock / Screensaver + 0x10 AL Local Machine Browser + 0x20 AC Minimize + 0x40 Record + 0x80 Rewind + + + + + +2011/07/13 +set +SET BT BDADDR 00:07:80:47:22:14 +SET BT NAME HHKB pro BT +SET BT CLASS 0005c0 +SET BT AUTH * 0000 +SET BT IDENT BT:47 f000 4.1.0 Bluegiga iWRAP +SET BT LAP 9e8b33 +SET BT PAGEMODE 4 2000 1 +SET BT PAIR 78:dd:08:b7:e4:a2 a191189cd7e51030ad6a07848ce879bb +SET BT POWER 3 3 3 +SET BT ROLE 0 f 7d00 +SET BT SNIFF 0 20 1 8 +SET BT SSP 2 1 +SET BT MTU 667 +SET CONTROL AUTOCALL 1124 3000 HID +SET CONTROL BAUD 38400,8n1 +SET CONTROL CD 00 0 +SET CONTROL ECHO 7 +SET CONTROL ESCAPE 43 00 1 +SET CONTROL GAIN 0 5 +SET CONTROL INIT SET CONTROL MUX 0 +SET CONTROL MSC DTE 00 00 00 00 00 00 +SET CONTROL MUX 1 +SET CONTROL PIO 00 00 +SET CONTROL READY 00 +SET PROFILE HID f HID +SET + +info config + +!!! THIS IS BETA RELEASE AND MAY BE USED FOR EVALUATION PURPOSES ONLY !!! + +WRAP THOR AI (4.1.0 build 435) +Copyright (c) 2003-2011 Bluegiga Technologies Inc. +Compiled on Jun 28 2011 17:19:51, running on WT12-A module, psr v31 + AVRCP BGIO FTP HFP HFP_AG HID HID_CONSUMER_PAGE HSP LEDS MAP OTA PBAP PIO=0x00fc SSP SUBRATE TEST VOLUME + - BOCK3 version 435 (Jun 28 2011 17:19:37) (max acl/sco 7/1) + - Bluetooth version 2.1, Power class 2 + - Loader 4279, firmware 6297 (56-bit encryption), native execution mode + - up 0 days, 06:23, 2 connections (pool 2) + - User configuration: +&028a = 0001 0000 0000 0011 0024 0000 0000 0010 0000 0080 0000 0000 0080 005f 009b 0034 00fb 0006 +&028b = 0000 0bb8 +&028d = 0001 +&0295 = 0000 0005 000b 0000 0003 0000 0000 0000 0000 0000 0000 +&0298 = a006 +&0299 = 0000 0000 +&02a3 = 0030 0030 0030 0030 +&02a4 = 009d 0000 +&02a5 = 0053 0045 0054 0020 0043 004f 004e 0054 0052 004f 004c 0020 004d 0055 0058 0020 0030 +&02a7 = 0000 05c0 +&02a8 = 4910 0000 0000 +&02aa = 0004 2000 0001 0033 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 +&02ac = 0000 0000 002b 0000 0000 0000 0000 0000 0000 0000 0002 0000 0000 0000 0010 0000 0000 0000 0000 029b 0000 0000 0000 0000 +&02ad = 4848 424b 7020 6f72 4220 0054 +&02b3 = 0005 0003 0003 0003 0003 0003 0003 0003 0003 0003 0003 0003 0003 0003 0003 0003 +&02b7 = 000f 4948 0044 +&02bb = 8000 +READY. + + + + +2011/07/07 settings: +set +SET BT BDADDR 00:07:80:47:22:14 +SET BT NAME HHKB Pro BT +SET BT CLASS 0005c0 +SET BT AUTH * 000 +SET BT IDENT BT:47 f000 4.0.0 Bluegiga iWRAP +SET BT LAP 9e8b33 +SET BT PAGEMODE 4 2000 1 +SET BT PAIR 78:dd:08:b7:e4:a2 9e54d0aabb1b4d73cfccddb1ea4ef2d6 +SET BT POWER 3 3 3 +SET BT ROLE 0 f 7d00 +SET BT SNIFF 0 20 1 8 +SET BT SSP 3 0 +SET BT MTU 667 +SET CONTROL BAUD 38400,8n1 +SET CONTROL CD 00 0 +SET CONTROL ECHO 7 +SET CONTROL ESCAPE 255 00 1 +SET CONTROL GAIN 0 5 +SET CONTROL INIT set control mux 0 +SET CONTROL MSC DTE 00 00 00 00 00 00 +SET CONTROL PREAMP 1 1 +SET CONTROL READY 00 +SET PROFILE HID HID +SET PROFILE SPP Bluetooth Serial Port +SET + +info config +WRAP THOR AI (4.0.0 build 317) +Copyright (c) 2003-2010 Bluegiga Technologies Inc. +Compiled on Apr 20 2010 16:44:28, running on WT12-A module, psr v31 + AVRCP FTP PBAP PIO=0x00fc SSP SUBRATE VOLUME + - BOCK3 version 317 (Apr 20 2010 16:44:21) (max acl/sco 7/1) + - Bluetooth version 2.1, Power class 2 + - Loader 4279, firmware 6297 (56-bit encryption), native execution mode + - up 0 days, 00:00, 0 connections (pool 1) + - User configuration: +&028c = 0001 0020 0000 0001 0008 0000 +&028d = 0000 +&0296 = 0047 0001 f000 0400 6c42 6575 6967 6167 6920 5257 5041 +&0298 = c006 +&02a3 = 0030 0030 0030 +&02a4 = 009d 0000 +&02a5 = 0073 0065 0074 0020 0063 006f 006e 0074 0072 006f 006c 0020 006d 0075 0078 0020 0030 +&02a7 = 0000 05c0 +&02a8 = 0800 0000 0000 +&02ac = 0000 0000 00ff 0000 0000 0000 0000 0000 0000 0000 0002 0000 0000 0000 0010 0000 0000 0000 0000 029b 0000 0000 0000 0000 +&02ad = 4848 424b 5020 6f72 4220 0054 +&02b3 = 0004 0003 0003 0003 0003 0003 0003 0003 0003 0003 0003 0003 0003 0003 0003 0003 +&02b7 = 0000 +&02bb = 6c42 6575 6f74 746f 2068 6553 6972 6c61 5020 726f 0074 +READY. + + + +2011/08/23: +SET BT BDADDR 00:07:80:47:22:14 +SET BT NAME HHKB pro BT +SET BT CLASS 0005c0 +SET BT AUTH * 0000 +SET BT IDENT BT:47 f000 4.1.0 Bluegiga iWRAP +SET BT LAP 9e8b33 +SET BT PAGEMODE 4 2000 1 +SET BT PAIRCOUNT 4 +SET BT POWER 3 3 3 +SET BT ROLE 1 f 12c0 +SET BT SNIFF 10 2 1 8 +SET BT SSP 3 0 +SET BT MTU 667 +SET CONTROL BAUD 38400,8n1 +SET CONTROL CD 00 0 +SET CONTROL ECHO 7 +SET CONTROL ESCAPE 43 00 1 +SET CONTROL GAIN 0 5 +SET CONTROL INIT SET CONTROL MUX 0 +SET CONTROL MSC DTE 00 00 00 00 00 00 +SET CONTROL MUX 1 +SET CONTROL PIO 00 00 +SET CONTROL READY 00 +SET PROFILE HID 7 HIDKeyboardMouse +SET + +SET CONTROL CONFIG 0000 0004 481e CLOCK_CACHE INTERLACED_INQ INTERLACED_PAGE DEEP_SLEEP INTERACTIVE_PIN UART_LATENCY 23D_NOKLUDGE + + + +2011/08/25: +SET BT BDADDR 00:07:80:47:22:14 +SET BT NAME HHKB pro BT +SET BT CLASS 0005c0 + +SET BT IDENT BT:47 f000 4.1.0 Bluegiga iWRAP +SET BT LAP 9e8b33 +SET BT PAGEMODE 4 2000 1 +SET BT PAIRCOUNT 4 +SET BT PAIR 78:dd:08:b7:e4:a2 0be83335a03fed8ededae42e99554e28 +SET BT POWER 3 3 3 +SET BT ROLE 1 f 12c0 +SET BT SNIFF 100 20 1 8 +SET BT SSP 3 0 +SET BT MTU 667 +SET CONTROL BAUD 38400,8n1 +SET CONTROL CD 00 0 +SET CONTROL ECHO 7 +SET CONTROL ESCAPE - 20 1 +SET CONTROL GAIN 0 5 +SET CONTROL INIT SET CONTROL MUX 0 +SET CONTROL MSC DTE 00 00 00 00 00 00 +SET CONTROL MUX 1 +SET CONTROL PIO 00 00 +SET CONTROL READY 00 +SET PROFILE HID f HIDKeyboardMouse +SET + + +SET CONTROL CONFIG 0000 0000 490e CLOCK_CACHE INTERLACED_INQ INTERLACED_PAGE KLUDGE INTERACTIVE_PIN UART_LATENCY + + +2011/09/08: +SET CONTROL CONFIG 0000 0000 410e CLOCK_CACHE INTERLACED_INQ INTERLACED_PAGE KLUDGE UART_LATENCY + + Removed INTERACTIVE_PIN to avoid interactive auth and use SET BT AUTH pin(0000). + + +EOF diff --git a/protocol/iwrap/iwrap.c b/protocol/iwrap/iwrap.c new file mode 100644 index 000000000..9c68761bf --- /dev/null +++ b/protocol/iwrap/iwrap.c @@ -0,0 +1,467 @@ +/* +Copyright 2011 Jun Wako <wakojun@gmail.com> + +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, see <http://www.gnu.org/licenses/>. +*/ + +/* host driver for Bulegiga iWRAP */ +/* Bluegiga BT12 + * Connections + * Hardware UART Software UART BlueTooth + * PC=====UART=======AVR=====SUART====iWRAP(BT12)-----------PC + * + * - Hardware UART for Debug Console to communicate iWRAP + * - Software UART for iWRAP control to send keyboard/mouse data + */ + +#include <stdint.h> +#include <string.h> +#include <avr/interrupt.h> +#include <util/delay.h> +#include "usb_keycodes.h" +#include "suart.h" +#include "uart.h" +#include "report.h" +#include "host_driver.h" +#include "iwrap.h" +#include "print.h" + + +/* iWRAP MUX mode utils. 3.10 HID raw mode(iWRAP_HID_Application_Note.pdf) */ +#define MUX_HEADER(LINK, LENGTH) do { \ + xmit(0xbf); /* SOF */ \ + xmit(LINK); /* Link */ \ + xmit(0x00); /* Flags */ \ + xmit(LENGTH); /* Length */ \ +} while (0) +#define MUX_FOOTER(LINK) xmit(LINK^0xff) + + +static uint8_t connected = 0; +//static uint8_t channel = 1; + +/* iWRAP buffer */ +#define MUX_BUF_SIZE 64 +static char buf[MUX_BUF_SIZE]; +static uint8_t snd_pos = 0; + +#define MUX_RCV_BUF_SIZE 256 +static char rcv_buf[MUX_RCV_BUF_SIZE]; +static uint8_t rcv_head = 0; +static uint8_t rcv_tail = 0; + + +/* receive buffer */ +static void rcv_enq(char c) +{ + uint8_t next = (rcv_head + 1) % MUX_RCV_BUF_SIZE; + if (next != rcv_tail) { + rcv_buf[rcv_head] = c; + rcv_head = next; + } +} + +static char rcv_deq(void) +{ + char c = 0; + if (rcv_head != rcv_tail) { + c = rcv_buf[rcv_tail++]; + rcv_tail %= MUX_RCV_BUF_SIZE; + } + return c; +} + +/* +static char rcv_peek(void) +{ + if (rcv_head == rcv_tail) + return 0; + return rcv_buf[rcv_tail]; +} +*/ + +static void rcv_clear(void) +{ + rcv_tail = rcv_head = 0; +} + +/* iWRAP response */ +ISR(PCINT1_vect, ISR_BLOCK) // recv() runs away in case of ISR_NOBLOCK +{ + if ((SUART_IN_PIN & (1<<SUART_IN_BIT))) + return; + + static volatile uint8_t mux_state = 0xff; + static volatile uint8_t mux_link = 0xff; + uint8_t c = recv(); + switch (mux_state) { + case 0xff: // SOF + if (c == 0xbf) + mux_state--; + break; + case 0xfe: // Link + mux_state--; + mux_link = c; + break; + case 0xfd: // Flags + mux_state--; + break; + case 0xfc: // Length + mux_state = c; + break; + case 0x00: + mux_state = 0xff; + mux_link = 0xff; + break; + default: + if (mux_state--) { + uart_putchar(c); + rcv_enq(c); + } + } +} + + +/*------------------------------------------------------------------* + * iWRAP communication + *------------------------------------------------------------------*/ +void iwrap_init(void) +{ + // reset iWRAP if in already MUX mode after AVR software-reset + iwrap_send("RESET"); + iwrap_mux_send("RESET"); + _delay_ms(3000); + iwrap_send("\r\nSET CONTROL MUX 1\r\n"); + _delay_ms(500); + iwrap_check_connection(); +} + +void iwrap_mux_send(const char *s) +{ + rcv_clear(); + MUX_HEADER(0xff, strlen((char *)s)); + iwrap_send(s); + MUX_FOOTER(0xff); +} + +void iwrap_send(const char *s) +{ + while (*s) + xmit(*s++); +} + +/* send buffer */ +void iwrap_buf_add(uint8_t c) +{ + // need space for '\0' + if (snd_pos < MUX_BUF_SIZE-1) + buf[snd_pos++] = c; +} + +void iwrap_buf_del(void) +{ + if (snd_pos) + snd_pos--; +} + +void iwrap_buf_send(void) +{ + buf[snd_pos] = '\0'; + snd_pos = 0; + iwrap_mux_send(buf); +} + +void iwrap_call(void) +{ + char *p; + + iwrap_mux_send("SET BT PAIR"); + _delay_ms(500); + + p = rcv_buf + rcv_tail; + while (!strncmp(p, "SET BT PAIR", 11)) { + p += 7; + strncpy(p, "CALL", 4); + strncpy(p+22, " 11 HID\n\0", 9); + print_S(p); + iwrap_mux_send(p); + // TODO: skip to next line + p += 57; + + DEBUG_LED_CONFIG; + DEBUG_LED_ON; + _delay_ms(500); + DEBUG_LED_OFF; + _delay_ms(500); + DEBUG_LED_ON; + _delay_ms(500); + DEBUG_LED_OFF; + _delay_ms(500); + DEBUG_LED_ON; + _delay_ms(500); + DEBUG_LED_OFF; + _delay_ms(500); + DEBUG_LED_ON; + _delay_ms(500); + DEBUG_LED_OFF; + _delay_ms(500); + DEBUG_LED_ON; + _delay_ms(500); + DEBUG_LED_OFF; + _delay_ms(500); + } + iwrap_check_connection(); +} + +void iwrap_kill(void) +{ + char c; + iwrap_mux_send("LIST"); + _delay_ms(500); + + while ((c = rcv_deq()) && c != '\n') ; + if (strncmp(rcv_buf + rcv_tail, "LIST ", 5)) { + print("no connection to kill.\n"); + return; + } + // skip 10 'space' chars + for (uint8_t i = 10; i; i--) + while ((c = rcv_deq()) && c != ' ') ; + + char *p = rcv_buf + rcv_tail - 5; + strncpy(p, "KILL ", 5); + strncpy(p + 22, "\n\0", 2); + print_S(p); + iwrap_mux_send(p); + _delay_ms(500); + + iwrap_check_connection(); +} + +void iwrap_unpair(void) +{ + iwrap_mux_send("SET BT PAIR"); + _delay_ms(500); + + char *p = rcv_buf + rcv_tail; + if (!strncmp(p, "SET BT PAIR", 11)) { + strncpy(p+29, "\n\0", 2); + print_S(p); + iwrap_mux_send(p); + } +} + +void iwrap_sleep(void) +{ + iwrap_mux_send("SLEEP"); +} + +void iwrap_sniff(void) +{ +} + +void iwrap_subrate(void) +{ +} + +bool iwrap_failed(void) +{ + if (strncmp(rcv_buf, "SYNTAX ERROR", 12)) + return true; + else + return false; +} + +uint8_t iwrap_connected(void) +{ + return connected; +} + +uint8_t iwrap_check_connection(void) +{ + iwrap_mux_send("LIST"); + _delay_ms(100); + + if (strncmp(rcv_buf, "LIST ", 5) || !strncmp(rcv_buf, "LIST 0", 6)) + connected = 0; + else + connected = 1; + return connected; +} + + +/*------------------------------------------------------------------* + * Host driver + *------------------------------------------------------------------*/ +static uint8_t keyboard_leds(void); +static void send_keyboard(report_keyboard_t *report); +static void send_mouse(report_mouse_t *report); +static void send_system(uint16_t data); +static void send_consumer(uint16_t data); + +static host_driver_t driver = { + keyboard_leds, + send_keyboard, + send_mouse, + send_system, + send_consumer +}; + +host_driver_t *iwrap_driver(void) +{ + return &driver; +} + +static uint8_t keyboard_leds(void) { + return 0; +} + +static void send_keyboard(report_keyboard_t *report) +{ + if (!iwrap_connected() && !iwrap_check_connection()) return; + MUX_HEADER(0x01, 0x0c); + // HID raw mode header + xmit(0x9f); + xmit(0x0a); // Length + xmit(0xa1); // keyboard report + xmit(0x01); + xmit(report->mods); + xmit(0x00); // reserved byte(always 0) + xmit(report->keys[0]); + xmit(report->keys[1]); + xmit(report->keys[2]); + xmit(report->keys[3]); + xmit(report->keys[4]); + xmit(report->keys[5]); + MUX_FOOTER(0x01); +} + +static void send_mouse(report_mouse_t *report) +{ +#if defined(MOUSEKEY_ENABLE) || defined(PS2_MOUSE_ENABLE) + if (!iwrap_connected() && !iwrap_check_connection()) return; + MUX_HEADER(0x01, 0x07); + // HID raw mode header + xmit(0x9f); + xmit(0x05); // Length + xmit(0xa1); // mouse report + xmit(0x02); + xmit(report->buttons); + xmit(report->x); + xmit(report->y); + MUX_FOOTER(0x01); +#endif +} + +static void send_system(uint16_t data) +{ + /* not supported */ +} + +static void send_consumer(uint16_t data) +{ +#ifdef EXTRAKEY_ENABLE + static uint16_t last_data = 0; + uint8_t bits1 = 0; + uint8_t bits2 = 0; + uint8_t bits3 = 0; + + if (!iwrap_connected() && !iwrap_check_connection()) return; + if (data == last_data) return; + last_data = data; + + // 3.10 HID raw mode(iWRAP_HID_Application_Note.pdf) + switch (data) { + case AUDIO_VOL_UP: + bits1 = 0x01; + break; + case AUDIO_VOL_DOWN: + bits1 = 0x02; + break; + case AUDIO_MUTE: + bits1 = 0x04; + break; + case TRANSPORT_PLAY_PAUSE: + bits1 = 0x08; + break; + case TRANSPORT_NEXT_TRACK: + bits1 = 0x10; + break; + case TRANSPORT_PREV_TRACK: + bits1 = 0x20; + break; + case TRANSPORT_STOP: + bits1 = 0x40; + break; + case TRANSPORT_EJECT: + bits1 = 0x80; + break; + case AL_EMAIL: + bits2 = 0x01; + break; + case AC_SEARCH: + bits2 = 0x02; + break; + case AC_BOOKMARKS: + bits2 = 0x04; + break; + case AC_HOME: + bits2 = 0x08; + break; + case AC_BACK: + bits2 = 0x10; + break; + case AC_FORWARD: + bits2 = 0x20; + break; + case AC_STOP: + bits2 = 0x40; + break; + case AC_REFRESH: + bits2 = 0x80; + break; + case AL_CC_CONFIG: + bits3 = 0x01; + break; + case AL_CALCULATOR: + bits3 = 0x04; + break; + case AL_LOCK: + bits3 = 0x08; + break; + case AL_LOCAL_BROWSER: + bits3 = 0x10; + break; + case AC_MINIMIZE: + bits3 = 0x20; + break; + case TRANSPORT_RECORD: + bits3 = 0x40; + break; + case TRANSPORT_REWIND: + bits3 = 0x80; + break; + } + + MUX_HEADER(0x01, 0x07); + xmit(0x9f); + xmit(0x05); // Length + xmit(0xa1); // consumer report + xmit(0x03); + xmit(bits1); + xmit(bits2); + xmit(bits3); + MUX_FOOTER(0x01); +#endif +} diff --git a/protocol/iwrap/iwrap.h b/protocol/iwrap/iwrap.h new file mode 100644 index 000000000..ffaad9395 --- /dev/null +++ b/protocol/iwrap/iwrap.h @@ -0,0 +1,49 @@ +/* +Copyright 2011 Jun Wako <wakojun@gmail.com> + +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, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef IWRAP_H +#define IWRAP_H + +#include <stdint.h> +#include <stdbool.h> +#include "host_driver.h" + + +/* enable iWRAP MUX mode */ +#define MUX_MODE + + +host_driver_t *iwrap_driver(void); + +void iwrap_init(void); +void iwrap_send(const char *s); +void iwrap_mux_send(const char *s); +void iwrap_buf_send(void); +void iwrap_buf_add(uint8_t c); +void iwrap_buf_del(void); + +void iwrap_call(void); +void iwrap_kill(void); +void iwrap_unpair(void); +void iwrap_sleep(void); +void iwrap_sniff(void); +void iwrap_subrate(void); +bool iwrap_failed(void); +uint8_t iwrap_connected(void); +uint8_t iwrap_check_connection(void); + +#endif diff --git a/protocol/iwrap/main.c b/protocol/iwrap/main.c new file mode 100644 index 000000000..a552afb67 --- /dev/null +++ b/protocol/iwrap/main.c @@ -0,0 +1,378 @@ +/* +Copyright 2011 Jun Wako <wakojun@gmail.com> + +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, see <http://www.gnu.org/licenses/>. +*/ +#include <stdint.h> +#include <avr/interrupt.h> +#include <avr/io.h> +//#include <avr/wdt.h> +#include "wd.h" // in order to use watchdog in interrupt mode +#include <avr/sleep.h> +#include <util/delay.h> +#include <avr/power.h> +#include "keyboard.h" +#include "matrix.h" +#include "host.h" +#include "iwrap.h" +#ifdef HOST_VUSB +# include "vusb.h" +# include "usbdrv.h" +#endif +#include "uart.h" +#include "suart.h" +#include "timer.h" +#include "debug.h" +#include "usb_keycodes.h" +#include "command.h" + + +static void sleep(uint8_t term); +static bool console(void); +static uint8_t console_command(uint8_t c); +static uint8_t key2asc(uint8_t key); + + +/* +static void set_prr(void) +{ + power_adc_disable(); + power_spi_disable(); + power_twi_disable(); +#ifndef TIMER_H + //power_timer0_disable(); // used in timer.c +#endif + power_timer1_disable(); + power_timer2_disable(); +} +*/ + +/* +static void pullup_pins(void) +{ + // DDRs are set to 0(input) by default. +#ifdef PORTA + PORTA = 0xFF; +#endif + PORTB = 0xFF; + PORTC = 0xFF; + PORTD = 0xFF; +#ifdef PORTE + PORTE = 0xFF; +#endif +#ifdef PORTE + PORTF = 0xFF; +#endif +} +*/ + + +#ifdef HOST_VUSB +static void disable_vusb(void) +{ + // disable interrupt & disconnect to prevent host from enumerating + USB_INTR_ENABLE &= ~(1 << USB_INTR_ENABLE_BIT); + usbDeviceDisconnect(); +} + +static void enable_vusb(void) +{ + USB_INTR_ENABLE |= (1 << USB_INTR_ENABLE_BIT); + usbDeviceConnect(); +} + +static void init_vusb(void) +{ + uint8_t i = 0; + + usbInit(); + disable_vusb(); + /* fake USB disconnect for > 250 ms */ + while(--i){ + _delay_ms(1); + } + enable_vusb(); +} +#endif + +void change_driver(host_driver_t *driver) +{ + host_clear_keyboard_report(); + host_swap_keyboard_report(); + host_clear_keyboard_report(); + host_send_keyboard_report(); + _delay_ms(1000); + host_set_driver(driver); +} + + +static bool sleeping = false; +static bool insomniac = false; // TODO: should be false for power saving +static uint16_t last_timer = 0; + +int main(void) +{ + MCUSR = 0; + clock_prescale_set(clock_div_1); + WD_SET(WD_OFF); + + // power saving: the result is worse than nothing... why? + //pullup_pins(); + //set_prr(); + + print_enable = true; + debug_enable = false; + +#ifdef HOST_VUSB + disable_vusb(); +#endif + uart_init(115200); + keyboard_init(); + print("\nSend BREAK for UART Console Commands.\n"); + + // TODO: move to iWRAP/suart file + print("suart init\n"); + // suart init + // PC4: Tx Output IDLE(Hi) + PORTC |= (1<<4); + DDRC |= (1<<4); + // PC5: Rx Input(pull-up) + PORTC |= (1<<5); + DDRC &= ~(1<<5); + // suart receive interrut(PC5/PCINT13) + PCMSK1 = 0b00100000; + PCICR = 0b00000010; + + host_set_driver(iwrap_driver()); + + print("iwrap_init()\n"); + iwrap_init(); + iwrap_call(); + + last_timer = timer_read(); + while (true) { +#ifdef HOST_VUSB + if (host_get_driver() == vusb_driver()) + usbPoll(); +#endif + keyboard_proc(); +#ifdef HOST_VUSB + if (host_get_driver() == vusb_driver()) + vusb_transfer_keyboard(); +#endif + if (matrix_is_modified() || console()) { + last_timer = timer_read(); + sleeping = false; + } else if (!sleeping && timer_elapsed(last_timer) > 4000) { + sleeping = true; + iwrap_check_connection(); + } + + if (host_get_driver() == iwrap_driver()) { + if (sleeping && !insomniac) { + _delay_ms(1); // wait for UART to send + iwrap_sleep(); + sleep(WDTO_60MS); + } + } + } +} + +static void sleep(uint8_t term) +{ + WD_SET(WD_IRQ, term); + + cli(); + set_sleep_mode(SLEEP_MODE_PWR_DOWN); + sleep_enable(); + sleep_bod_disable(); + sei(); + sleep_cpu(); + sleep_disable(); + + WD_SET(WD_OFF); +} + +ISR(WDT_vect) +{ + // wake up +} + +static bool console(void) +{ + // Send to Bluetoot module WT12 + static bool breaked = false; + if (!uart_available()) + return false; + else { + uint8_t c; + c = uart_getchar(); + uart_putchar(c); + switch (c) { + case 0x00: // BREAK signal + if (!breaked) { + print("break(? for help): "); + breaked = true; + } + break; + case '\r': + uart_putchar('\n'); + iwrap_buf_send(); + break; + case '\b': + iwrap_buf_del(); + break; + default: + if (breaked) { + print("\n"); + console_command(c); + breaked = false; + } else { + iwrap_buf_add(c); + } + break; + } + return true; + } +} + +uint8_t command_extra() +{ + return console_command(key2asc(host_get_first_key())); +} + +static uint8_t console_command(uint8_t c) +{ + switch (c) { + case 'h': + case '?': + print("\nCommands for Bluetooth(WT12/iWRAP):\n"); + print("r: reset. software reset by watchdog\n"); + print("i: insomniac. prevent KB from sleeping\n"); + print("c: iwrap_call. CALL for BT connection.\n"); +#ifdef HOST_VUSB + print("u: USB mode. switch to USB.\n"); + print("w: BT mode. switch to Bluetooth.\n"); +#endif + print("k: kill first connection.\n"); + print("Del: unpair first pairing.\n"); + print("\n"); + return 0; + case 'r': + print("reset\n"); + WD_AVR_RESET(); + return 1; + case 'i': + insomniac = !insomniac; + if (insomniac) + print("insomniac\n"); + else + print("not insomniac\n"); + return 1; + case 'c': + print("iwrap_call()\n"); + iwrap_call(); + return 1; +#ifdef HOST_VUSB + case 'u': + print("USB mode\n"); + init_vusb(); + change_driver(vusb_driver()); + //iwrap_kill(); + //iwrap_sleep(); + // disable suart receive interrut(PC5/PCINT13) + PCMSK1 &= ~(0b00100000); + PCICR &= ~(0b00000010); + return 1; + case 'w': + print("iWRAP mode\n"); + change_driver(iwrap_driver()); + disable_vusb(); + // enable suart receive interrut(PC5/PCINT13) + PCMSK1 |= 0b00100000; + PCICR |= 0b00000010; + return 1; +#endif + case 'k': + print("kill\n"); + iwrap_kill(); + return 1; + case 0x7F: // DELETE + print("unpair\n"); + iwrap_unpair(); + return 1; + } + return 0; +} + +// convert keycode into ascii charactor +static uint8_t key2asc(uint8_t key) +{ + switch (key) { + case KB_A: return 'a'; + case KB_B: return 'b'; + case KB_C: return 'c'; + case KB_D: return 'd'; + case KB_E: return 'e'; + case KB_F: return 'f'; + case KB_G: return 'g'; + case KB_H: return 'h'; + case KB_I: return 'i'; + case KB_J: return 'j'; + case KB_K: return 'k'; + case KB_L: return 'l'; + case KB_M: return 'm'; + case KB_N: return 'n'; + case KB_O: return 'o'; + case KB_P: return 'p'; + case KB_Q: return 'q'; + case KB_R: return 'r'; + case KB_S: return 's'; + case KB_T: return 't'; + case KB_U: return 'u'; + case KB_V: return 'v'; + case KB_W: return 'w'; + case KB_X: return 'x'; + case KB_Y: return 'y'; + case KB_Z: return 'z'; + case KB_1: return '1'; + case KB_2: return '2'; + case KB_3: return '3'; + case KB_4: return '4'; + case KB_5: return '5'; + case KB_6: return '6'; + case KB_7: return '7'; + case KB_8: return '8'; + case KB_9: return '9'; + case KB_0: return '0'; + case KB_ENTER: return '\n'; + case KB_ESCAPE: return 0x1B; + case KB_BSPACE: return '\b'; + case KB_TAB: return '\t'; + case KB_SPACE: return ' '; + case KB_MINUS: return '-'; + case KB_EQUAL: return '='; + case KB_LBRACKET: return '['; + case KB_RBRACKET: return ']'; + case KB_BSLASH: return '\\'; + case KB_NONUS_HASH: return '\\'; + case KB_SCOLON: return ';'; + case KB_QUOTE: return '\''; + case KB_GRAVE: return '`'; + case KB_COMMA: return ','; + case KB_DOT: return '.'; + case KB_SLASH: return '/'; + default: return 0x00; + } +} diff --git a/protocol/iwrap/suart.S b/protocol/iwrap/suart.S new file mode 100644 index 000000000..1b0290963 --- /dev/null +++ b/protocol/iwrap/suart.S @@ -0,0 +1,156 @@ +;---------------------------------------------------------------------------;
+; Software implemented UART module ;
+; (C)ChaN, 2005 (http://elm-chan.org/) ;
+;---------------------------------------------------------------------------;
+; Bit rate settings:
+;
+; 1MHz 2MHz 4MHz 6MHz 8MHz 10MHz 12MHz 16MHz 20MHz
+; 2.4kbps 138 - - - - - - - -
+; 4.8kbps 68 138 - - - - - - -
+; 9.6kbps 33 68 138 208 - - - - -
+; 19.2kbps - 33 68 102 138 173 208 - -
+; 38.4kbps - - 33 50 68 85 102 138 172
+; 57.6kbps - - 21 33 44 56 68 91 114
+; 115.2kbps - - - - 21 27 33 44 56
+
+.nolist
+#include <avr/io.h>
+.list
+
+#define BPS 102 /* Bit delay. (see above table) */
+#define BIDIR 0 /* 0:Separated Tx/Rx, 1:Shared Tx/Rx */
+
+#define OUT_1 sbi _SFR_IO_ADDR(SUART_OUT_PORT), SUART_OUT_BIT /* Output 1 */
+#define OUT_0 cbi _SFR_IO_ADDR(SUART_OUT_PORT), SUART_OUT_BIT /* Output 0 */
+#define SKIP_IN_1 sbis _SFR_IO_ADDR(SUART_IN_PIN), SUART_IN_BIT /* Skip if 1 */
+#define SKIP_IN_0 sbic _SFR_IO_ADDR(SUART_IN_PIN), SUART_IN_BIT /* Skip if 0 */
+
+
+
+#ifdef SPM_PAGESIZE
+.macro _LPMI reg
+ lpm \reg, Z+
+.endm
+.macro _MOVW dh,dl, sh,sl
+ movw \dl, \sl
+.endm
+#else
+.macro _LPMI reg
+ lpm
+ mov \reg, r0
+ adiw ZL, 1
+.endm
+.macro _MOVW dh,dl, sh,sl
+ mov \dl, \sl
+ mov \dh, \sh
+.endm
+#endif
+
+
+
+;---------------------------------------------------------------------------;
+; Transmit a byte in serial format of N81
+;
+;Prototype: void xmit (uint8_t data);
+;Size: 16 words
+
+.global xmit
+.func xmit
+xmit:
+#if BIDIR
+ ldi r23, BPS-1 ;Pre-idle time for bidirectional data line
+5: dec r23 ;
+ brne 5b ;/
+#endif
+ in r0, _SFR_IO_ADDR(SREG) ;Save flags
+
+ com r24 ;C = start bit
+ ldi r25, 10 ;Bit counter
+ cli ;Start critical section
+
+1: ldi r23, BPS-1 ;----- Bit transferring loop
+2: dec r23 ;Wait for a bit time
+ brne 2b ;/
+ brcs 3f ;MISO = bit to be sent
+ OUT_1 ;
+3: brcc 4f ;
+ OUT_0 ;/
+4: lsr r24 ;Get next bit into C
+ dec r25 ;All bits sent?
+ brne 1b ; no, coutinue
+
+ out _SFR_IO_ADDR(SREG), r0 ;End of critical section
+ ret
+.endfunc
+
+
+
+;---------------------------------------------------------------------------;
+; Receive a byte
+;
+;Prototype: uint8_t rcvr (void);
+;Size: 19 words
+
+.global rcvr
+.func rcvr
+rcvr:
+ in r0, _SFR_IO_ADDR(SREG) ;Save flags
+
+ ldi r24, 0x80 ;Receiving shift reg
+ cli ;Start critical section
+
+1: SKIP_IN_1 ;Wait for idle
+ rjmp 1b
+2: SKIP_IN_0 ;Wait for start bit
+ rjmp 2b
+ ldi r25, BPS/2 ;Wait for half bit time
+3: dec r25
+ brne 3b
+
+4: ldi r25, BPS ;----- Bit receiving loop
+5: dec r25 ;Wait for a bit time
+ brne 5b ;/
+ lsr r24 ;Next bit
+ SKIP_IN_0 ;Get a data bit into r24.7
+ ori r24, 0x80
+ brcc 4b ;All bits received? no, continue
+
+ out _SFR_IO_ADDR(SREG), r0 ;End of critical section
+ ret
+.endfunc
+
+
+; Not wait for start bit. This should be called after detecting start bit.
+.global recv
+.func recv
+recv:
+ in r0, _SFR_IO_ADDR(SREG) ;Save flags
+
+ ldi r24, 0x80 ;Receiving shift reg
+ cli ;Start critical section
+
+;1: SKIP_IN_1 ;Wait for idle
+; rjmp 1b
+;2: SKIP_IN_0 ;Wait for start bit
+; rjmp 2b
+ ldi r25, BPS/2 ;Wait for half bit time
+3: dec r25
+ brne 3b
+
+4: ldi r25, BPS ;----- Bit receiving loop
+5: dec r25 ;Wait for a bit time
+ brne 5b ;/
+ lsr r24 ;Next bit
+ SKIP_IN_0 ;Get a data bit into r24.7
+ ori r24, 0x80
+ brcc 4b ;All bits received? no, continue
+
+ ldi r25, BPS/2 ;Wait for half bit time
+6: dec r25
+ brne 6b
+7: SKIP_IN_1 ;Wait for stop bit
+ rjmp 7b
+
+ out _SFR_IO_ADDR(SREG), r0 ;End of critical section
+ ret
+.endfunc
diff --git a/protocol/iwrap/suart.h b/protocol/iwrap/suart.h new file mode 100644 index 000000000..72725b998 --- /dev/null +++ b/protocol/iwrap/suart.h @@ -0,0 +1,8 @@ +#ifndef SUART
+#define SUART
+
+void xmit(uint8_t);
+uint8_t rcvr(void);
+uint8_t recv(void);
+
+#endif /* SUART */
diff --git a/protocol/iwrap/wd.h b/protocol/iwrap/wd.h new file mode 100644 index 000000000..99058f033 --- /dev/null +++ b/protocol/iwrap/wd.h @@ -0,0 +1,159 @@ +/* This is from http://www.mtcnet.net/~henryvm/wdt/ */
+#ifndef _AVR_WD_H_
+#define _AVR_WD_H_
+
+#include <avr/io.h>
+
+/*
+Copyright (c) 2009, Curt Van Maanen
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+include usage-
+ #include "wd.h" //if in same directory as project
+ #include <avr/wd.h> //if wd.h is in avr directory
+
+set watchdog modes and prescale
+
+usage-
+ WD_SET(mode,[timeout]); //prescale always set
+
+modes-
+ WD_OFF disabled
+ WD_RST normal reset mode
+ WD_IRQ interrupt only mode (if supported)
+ WD_RST_IRQ interrupt+reset mode (if supported)
+
+timeout-
+ WDTO_15MS default if no timeout provided
+ WDTO_30MS
+ WDTO_60MS
+ WDTO_120MS
+ WDTO_250MS
+ WDTO_500MS
+ WDTO_1S
+ WDTO_2S
+ WDTO_4S (if supported)
+ WDTO_8S (if supported)
+
+examples-
+ WD_SET(WD_RST,WDTO_1S); //reset mode, 1s timeout
+ WD_SET(WD_OFF); //watchdog disabled (if not fused on)
+ WD_SET(WD_RST); //reset mode, 15ms (default timeout)
+ WD_SET(WD_IRQ,WDTO_120MS); //interrupt only mode, 120ms timeout
+ WD_SET(WD_RST_IRQ,WDTO_2S); //interrupt+reset mode, 2S timeout
+
+
+for enhanced watchdogs, if the watchdog is not being used WDRF should be
+cleared on every power up or reset, along with disabling the watchdog-
+ WD_DISABLE(); //clear WDRF, then turn off watchdog
+
+*/
+
+//reset registers to the same name (MCUCSR)
+#if !defined(MCUCSR)
+#define MCUCSR MCUSR
+#endif
+
+//watchdog registers to the same name (WDTCSR)
+#if !defined(WDTCSR)
+#define WDTCSR WDTCR
+#endif
+
+//if enhanced watchdog, define irq values, create disable macro
+#if defined(WDIF)
+#define WD_IRQ 0xC0
+#define WD_RST_IRQ 0xC8
+#define WD_DISABLE() do{ \
+ MCUCSR &= ~(1<<WDRF); \
+ WD_SET(WD_OFF); \
+ }while(0)
+#endif
+
+//all watchdogs
+#define WD_RST 8
+#define WD_OFF 0
+
+//prescale values
+#define WDTO_15MS 0
+#define WDTO_30MS 1
+#define WDTO_60MS 2
+#define WDTO_120MS 3
+#define WDTO_250MS 4
+#define WDTO_500MS 5
+#define WDTO_1S 6
+#define WDTO_2S 7
+
+//prescale values for avrs with WDP3
+#if defined(WDP3)
+#define WDTO_4S 0x20
+#define WDTO_8S 0x21
+#endif
+
+//watchdog reset
+#define WDR() __asm__ __volatile__("wdr")
+
+//avr reset using watchdog
+#define WD_AVR_RESET() do{ \
+ __asm__ __volatile__("cli"); \
+ WD_SET_UNSAFE(WD_RST); \
+ while(1); \
+ }while(0)
+
+/*set the watchdog-
+1. save SREG
+2. turn off irq's
+3. reset watchdog timer
+4. enable watchdog change
+5. write watchdog value
+6. restore SREG (restoring irq status)
+*/
+#define WD_SET(val,...) \
+ __asm__ __volatile__( \
+ "in __tmp_reg__,__SREG__" "\n\t" \
+ "cli" "\n\t" \
+ "wdr" "\n\t" \
+ "sts %[wdreg],%[wden]" "\n\t" \
+ "sts %[wdreg],%[wdval]" "\n\t" \
+ "out __SREG__,__tmp_reg__" "\n\t" \
+ : \
+ : [wdreg] "M" (&WDTCSR), \
+ [wden] "r" ((uint8_t)(0x18)), \
+ [wdval] "r" ((uint8_t)(val|(__VA_ARGS__+0))) \
+ : "r0" \
+)
+
+/*set the watchdog when I bit in SREG known to be clear-
+1. reset watchdog timer
+2. enable watchdog change
+5. write watchdog value
+*/
+#define WD_SET_UNSAFE(val,...) \
+ __asm__ __volatile__( \
+ "wdr" "\n\t" \
+ "sts %[wdreg],%[wden]" "\n\t" \
+ "sts %[wdreg],%[wdval]" "\n\t" \
+ : \
+ : [wdreg] "M" (&WDTCSR), \
+ [wden] "r" ((uint8_t)(0x18)), \
+ [wdval] "r" ((uint8_t)(val|(__VA_ARGS__+0))) \
+)
+
+
+//for compatibility with avr/wdt.h
+#define wdt_enable(val) WD_SET(WD_RST,val)
+#define wdt_disable() WD_SET(WD_OFF)
+
+
+#endif /* _AVR_WD_H_ */
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