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- #include <stdint.h>
- #include "keycode.h"
- #include "serial.h"
- #include "host.h"
- #include "action.h"
- #include "action_util.h"
- #include "lufa.h"
- #include "rn42_task.h"
- #include "print.h"
- #include "timer.h"
- #include "command.h"
-
- static bool config_mode = false;
- static bool force_usb = false;
-
- static void battery_adc_init(void)
- {
- ADMUX = (1<<REFS1) | (1<<REFS0); // Ref:2.56V band-gap, Input:ADC0(PF0)
- ADCSRA = (1<<ADPS2) | (1<<ADPS1) | (1<<ADPS0); // Prescale:128 16MHz/128=125KHz
- ADCSRA |= (1<<ADEN); // enable ADC
- }
-
- static uint16_t battery_adc(void)
- {
- volatile uint16_t bat;
- ADCSRA |= (1<<ADEN);
-
- // discard first result
- ADCSRA |= (1<<ADSC);
- while (ADCSRA & (1<<ADSC)) ;
- bat = ADC;
-
- // discard second result
- ADCSRA |= (1<<ADSC);
- while (ADCSRA & (1<<ADSC)) ;
- bat = ADC;
-
- ADCSRA |= (1<<ADSC);
- while (ADCSRA & (1<<ADSC)) ;
- bat = ADC;
-
- ADCSRA &= ~(1<<ADEN);
- return bat;
- }
-
-
- void rn42_task_init(void)
- {
- battery_adc_init();
- }
-
- void rn42_task(void)
- {
- int16_t c;
- if (config_mode) {
- // Config mode: print output from RN-42
- while ((c = serial_recv2()) != -1) {
- // without flow control it'll fail to receive data when flooded
- xprintf("%c", c);
- }
- } else {
- // Raw mode: interpret output report of LED state
- while ((c = serial_recv2()) != -1) {
- // LED Out report: 0xFE, 0x02, 0x01, <leds>
- // To get the report over UART set bit3 with SH, command.
- static enum {LED_INIT, LED_FE, LED_02, LED_01} state = LED_INIT;
- xprintf("%02X\n", c);
- switch (state) {
- case LED_INIT:
- if (c == 0xFE) state = LED_FE;
- else state = LED_INIT;
- break;
- case LED_FE:
- if (c == 0x02) state = LED_02;
- else state = LED_INIT;
- break;
- case LED_02:
- if (c == 0x01) state = LED_01;
- else state = LED_INIT;
- break;
- case LED_01:
- // TODO: move to rn42.c and make accessible with keyboard_leds()
- xprintf("LED status: %02X\n", c);
- state = LED_INIT;
- break;
- default:
- state = LED_INIT;
- }
- }
- }
-
- /* Bluetooth mode when ready */
- if (!config_mode && !force_usb) {
- if (!rn42_rts() && host_get_driver() != &rn42_driver) {
- clear_keyboard();
- host_set_driver(&rn42_driver);
- } else if (rn42_rts() && host_get_driver() != &lufa_driver) {
- clear_keyboard();
- host_set_driver(&lufa_driver);
- }
- }
- }
-
-
-
- /******************************************************************************
- * Command
- ******************************************************************************/
- bool command_extra(uint8_t code)
- {
- static host_driver_t *prev_driver = &rn42_driver;
- switch (code) {
- case KC_H:
- case KC_SLASH: /* ? */
- print("\n\n----- Bluetooth RN-42 Help -----\n");
- print("Del: enter/exit config mode(auto_connect/disconnect)\n");
- print("i: RN-42 info\n");
- print("b: battery voltage\n");
-
- if (config_mode) {
- return true;
- } else {
- print("u: Force USB mode\n");
- return false; // to display default command help
- }
- case KC_DELETE:
- if (rn42_autoconnecting()) {
- prev_driver = host_get_driver();
- clear_keyboard();
- _delay_ms(500);
- host_set_driver(&rn42_config_driver); // null driver; not to send a key to host
- rn42_disconnect();
- print("\nRN-42: disconnect\n");
- print("Enter config mode\n");
- print("type $$$ to start and + for local echo\n");
- command_state = CONSOLE;
- config_mode = true;
- } else {
- rn42_autoconnect();
- print("\nRN-42: auto_connect\n");
- print("Exit config mode\n");
- command_state = ONESHOT;
- config_mode = false;
- //clear_keyboard();
- host_set_driver(prev_driver);
- }
- return true;
- case KC_U:
- if (config_mode) return false;
- if (force_usb) {
- print("Auto mode\n");
- force_usb = false;
- } else {
- print("USB mode\n");
- force_usb = true;
- clear_keyboard();
- host_set_driver(&lufa_driver);
- }
- return true;
- case KC_I:
- print("\n----- RN-42 info -----\n");
- xprintf("protocol: %s\n", (host_get_driver() == &rn42_driver) ? "RN-42" : "LUFA");
- xprintf("force_usb: %X\n", force_usb);
- xprintf("rn42_autoconnecting(): %X\n", rn42_autoconnecting());
- xprintf("rn42_rts(): %X\n", rn42_rts());
- xprintf("config_mode: %X\n", config_mode);
- return true;
- case KC_B:
- // battery monitor
- xprintf("BAT: %04X(%08lX)\n", battery_adc(), timer_read32());
- return true;
- default:
- if (config_mode)
- return true;
- else
- return false; // exec default command
- }
- return true;
- }
-
- static uint8_t code2asc(uint8_t code);
- bool command_console_extra(uint8_t code)
- {
- switch (code) {
- default:
- rn42_putc(code2asc(code));
- return true;
- }
- return false;
- }
-
- // convert keycode into ascii charactor
- static uint8_t code2asc(uint8_t code)
- {
- bool shifted = (get_mods() & (MOD_BIT(KC_LSHIFT)|MOD_BIT(KC_RSHIFT))) ? true : false;
- switch (code) {
- case KC_A: return (shifted ? 'A' : 'a');
- case KC_B: return (shifted ? 'B' : 'b');
- case KC_C: return (shifted ? 'C' : 'c');
- case KC_D: return (shifted ? 'D' : 'd');
- case KC_E: return (shifted ? 'E' : 'e');
- case KC_F: return (shifted ? 'F' : 'f');
- case KC_G: return (shifted ? 'G' : 'g');
- case KC_H: return (shifted ? 'H' : 'h');
- case KC_I: return (shifted ? 'I' : 'i');
- case KC_J: return (shifted ? 'J' : 'j');
- case KC_K: return (shifted ? 'K' : 'k');
- case KC_L: return (shifted ? 'L' : 'l');
- case KC_M: return (shifted ? 'M' : 'm');
- case KC_N: return (shifted ? 'N' : 'n');
- case KC_O: return (shifted ? 'O' : 'o');
- case KC_P: return (shifted ? 'P' : 'p');
- case KC_Q: return (shifted ? 'Q' : 'q');
- case KC_R: return (shifted ? 'R' : 'r');
- case KC_S: return (shifted ? 'S' : 's');
- case KC_T: return (shifted ? 'T' : 't');
- case KC_U: return (shifted ? 'U' : 'u');
- case KC_V: return (shifted ? 'V' : 'v');
- case KC_W: return (shifted ? 'W' : 'w');
- case KC_X: return (shifted ? 'X' : 'x');
- case KC_Y: return (shifted ? 'Y' : 'y');
- case KC_Z: return (shifted ? 'Z' : 'z');
- case KC_1: return (shifted ? '!' : '1');
- case KC_2: return (shifted ? '@' : '2');
- case KC_3: return (shifted ? '#' : '3');
- case KC_4: return (shifted ? '$' : '4');
- case KC_5: return (shifted ? '%' : '5');
- case KC_6: return (shifted ? '^' : '6');
- case KC_7: return (shifted ? '&' : '7');
- case KC_8: return (shifted ? '*' : '8');
- case KC_9: return (shifted ? '(' : '9');
- case KC_0: return (shifted ? ')' : '0');
- case KC_ENTER: return '\n';
- case KC_ESCAPE: return 0x1B;
- case KC_BSPACE: return '\b';
- case KC_TAB: return '\t';
- case KC_SPACE: return ' ';
- case KC_MINUS: return (shifted ? '_' : '-');
- case KC_EQUAL: return (shifted ? '+' : '=');
- case KC_LBRACKET: return (shifted ? '{' : '[');
- case KC_RBRACKET: return (shifted ? '}' : ']');
- case KC_BSLASH: return (shifted ? '|' : '\\');
- case KC_NONUS_HASH: return (shifted ? '|' : '\\');
- case KC_SCOLON: return (shifted ? ':' : ';');
- case KC_QUOTE: return (shifted ? '"' : '\'');
- case KC_GRAVE: return (shifted ? '~' : '`');
- case KC_COMMA: return (shifted ? '<' : ',');
- case KC_DOT: return (shifted ? '>' : '.');
- case KC_SLASH: return (shifted ? '?' : '/');
- case KC_DELETE: return '\0'; // Delete to disconnect
- default: return ' ';
- }
- }
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