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-rw-r--r--tmk_core/protocol/iwrap/iwrap.c469
1 files changed, 469 insertions, 0 deletions
diff --git a/tmk_core/protocol/iwrap/iwrap.c b/tmk_core/protocol/iwrap/iwrap.c
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+++ b/tmk_core/protocol/iwrap/iwrap.c
@@ -0,0 +1,469 @@
+/*
+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 "keycode.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); // DATA(Input)
+ xmit(0x01); // Report ID
+ 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, 0x09);
+ // HID raw mode header
+ xmit(0x9f);
+ xmit(0x07); // Length
+ xmit(0xa1); // DATA(Input)
+ xmit(0x02); // Report ID
+ xmit(report->buttons);
+ xmit(report->x);
+ xmit(report->y);
+ xmit(report->v);
+ xmit(report->h);
+ 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); // DATA(Input)
+ xmit(0x03); // Report ID
+ xmit(bits1);
+ xmit(bits2);
+ xmit(bits3);
+ MUX_FOOTER(0x01);
+#endif
+}
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