309 lines
9.7 KiB
C
309 lines
9.7 KiB
C
#include <stdint.h>
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#include "keycode.h"
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#include "serial.h"
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#include "host.h"
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#include "action.h"
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#include "action_util.h"
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#include "lufa.h"
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#include "rn42_task.h"
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#include "print.h"
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#include "timer.h"
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#include "command.h"
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static bool config_mode = false;
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static bool force_usb = false;
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static void status_led(bool on)
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{
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if (on) {
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DDRE |= (1<<6);
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PORTE &= ~(1<<6);
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} else {
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DDRE |= (1<<6);
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PORTE |= (1<<6);
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}
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}
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static void battery_adc_init(void)
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{
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ADMUX = (1<<REFS1) | (1<<REFS0); // Ref:2.56V band-gap, Input:ADC0(PF0)
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ADCSRA = (1<<ADPS2) | (1<<ADPS1) | (1<<ADPS0); // Prescale:128 16MHz/128=125KHz
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ADCSRA |= (1<<ADEN); // enable ADC
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}
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static uint16_t battery_adc(void)
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{
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volatile uint16_t bat;
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ADCSRA |= (1<<ADEN);
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// discard first result
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ADCSRA |= (1<<ADSC);
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while (ADCSRA & (1<<ADSC)) ;
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bat = ADC;
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// discard second result
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ADCSRA |= (1<<ADSC);
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while (ADCSRA & (1<<ADSC)) ;
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bat = ADC;
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ADCSRA |= (1<<ADSC);
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while (ADCSRA & (1<<ADSC)) ;
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bat = ADC;
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ADCSRA &= ~(1<<ADEN);
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return bat;
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}
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static void battery_led(bool on)
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{
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if (on) {
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DDRF |= (1<<5);
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PORTF &= ~(1<<5); // Low
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} else {
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DDRF &= ~(1<<5);
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PORTF &= ~(1<<5); // HiZ
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}
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}
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static bool battery_charging(void)
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{
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// MCP73831:STAT
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// Hi-Z: Shutdown/No Battery
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// Low: Charging
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// Hi: Charged
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DDRF &= ~(1<<5);
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PORTF |= (1<<5);
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return PINF&(1<<5) ? false : true;
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}
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void rn42_task_init(void)
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{
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battery_adc_init();
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// battery charging(HiZ)
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DDRF &= ~(1<<5);
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PORTF &= ~(1<<5);
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}
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void rn42_task(void)
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{
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int16_t c;
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if (config_mode) {
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// Config mode: print output from RN-42
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while ((c = serial_recv2()) != -1) {
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// without flow control it'll fail to receive data when flooded
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xprintf("%c", c);
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}
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} else {
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// Raw mode: interpret output report of LED state
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while ((c = serial_recv2()) != -1) {
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// LED Out report: 0xFE, 0x02, 0x01, <leds>
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// To get the report over UART set bit3 with SH, command.
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static enum {LED_INIT, LED_FE, LED_02, LED_01} state = LED_INIT;
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xprintf("%02X\n", c);
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switch (state) {
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case LED_INIT:
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if (c == 0xFE) state = LED_FE;
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else state = LED_INIT;
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break;
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case LED_FE:
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if (c == 0x02) state = LED_02;
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else state = LED_INIT;
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break;
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case LED_02:
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if (c == 0x01) state = LED_01;
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else state = LED_INIT;
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break;
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case LED_01:
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// TODO: move to rn42.c and make accessible with keyboard_leds()
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xprintf("LED status: %02X\n", c);
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state = LED_INIT;
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break;
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default:
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state = LED_INIT;
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}
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}
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}
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/* Bluetooth mode when ready */
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if (!config_mode && !force_usb) {
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if (!rn42_rts() && host_get_driver() != &rn42_driver) {
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clear_keyboard();
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host_set_driver(&rn42_driver);
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} else if (rn42_rts() && host_get_driver() != &lufa_driver) {
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clear_keyboard();
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host_set_driver(&lufa_driver);
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}
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}
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/* Battery monitor */
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/* Connection monitor */
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if (rn42_linked()) {
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status_led(true);
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} else {
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status_led(false);
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}
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}
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/******************************************************************************
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* Command
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******************************************************************************/
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bool command_extra(uint8_t code)
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{
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uint32_t t;
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uint16_t b;
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static host_driver_t *prev_driver = &rn42_driver;
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switch (code) {
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case KC_H:
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case KC_SLASH: /* ? */
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print("\n\n----- Bluetooth RN-42 Help -----\n");
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print("Del: enter/exit config mode(auto_connect/disconnect)\n");
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print("i: RN-42 info\n");
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print("b: battery voltage\n");
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if (config_mode) {
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return true;
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} else {
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print("u: Force USB mode\n");
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return false; // to display default command help
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}
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case KC_DELETE:
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if (rn42_autoconnecting()) {
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prev_driver = host_get_driver();
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clear_keyboard();
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_delay_ms(500);
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host_set_driver(&rn42_config_driver); // null driver; not to send a key to host
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rn42_disconnect();
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print("\nRN-42: disconnect\n");
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print("Enter config mode\n");
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print("type $$$ to start and + for local echo\n");
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command_state = CONSOLE;
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config_mode = true;
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} else {
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rn42_autoconnect();
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print("\nRN-42: auto_connect\n");
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print("Exit config mode\n");
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command_state = ONESHOT;
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config_mode = false;
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//clear_keyboard();
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host_set_driver(prev_driver);
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}
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return true;
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case KC_U:
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if (config_mode) return false;
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if (force_usb) {
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print("Auto mode\n");
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force_usb = false;
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} else {
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print("USB mode\n");
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force_usb = true;
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clear_keyboard();
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host_set_driver(&lufa_driver);
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}
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return true;
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case KC_I:
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print("\n----- RN-42 info -----\n");
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xprintf("protocol: %s\n", (host_get_driver() == &rn42_driver) ? "RN-42" : "LUFA");
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xprintf("force_usb: %X\n", force_usb);
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xprintf("rn42_autoconnecting(): %X\n", rn42_autoconnecting());
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xprintf("rn42_linked(): %X\n", rn42_linked());
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xprintf("rn42_rts(): %X\n", rn42_rts());
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xprintf("config_mode: %X\n", config_mode);
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xprintf("VBUS: %X\n", USBSTA&(1<<VBUS));
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xprintf("battery_charging: %X\n", battery_charging());
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return true;
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case KC_B:
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// battery monitor
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t = timer_read32()/1000;
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b = battery_adc();
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xprintf("BAT: %umV(%04X)\t", (b-16)*5, b);
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xprintf("%02u:", t/3600);
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xprintf("%02u:", t%3600/60);
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xprintf("%02u\n", t%60);
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return true;
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default:
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if (config_mode)
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return true;
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else
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return false; // exec default command
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}
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return true;
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}
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static uint8_t code2asc(uint8_t code);
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bool command_console_extra(uint8_t code)
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{
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switch (code) {
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default:
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rn42_putc(code2asc(code));
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return true;
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}
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return false;
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}
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// convert keycode into ascii charactor
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static uint8_t code2asc(uint8_t code)
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{
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bool shifted = (get_mods() & (MOD_BIT(KC_LSHIFT)|MOD_BIT(KC_RSHIFT))) ? true : false;
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switch (code) {
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case KC_A: return (shifted ? 'A' : 'a');
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case KC_B: return (shifted ? 'B' : 'b');
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case KC_C: return (shifted ? 'C' : 'c');
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case KC_D: return (shifted ? 'D' : 'd');
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case KC_E: return (shifted ? 'E' : 'e');
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case KC_F: return (shifted ? 'F' : 'f');
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case KC_G: return (shifted ? 'G' : 'g');
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case KC_H: return (shifted ? 'H' : 'h');
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case KC_I: return (shifted ? 'I' : 'i');
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case KC_J: return (shifted ? 'J' : 'j');
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case KC_K: return (shifted ? 'K' : 'k');
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case KC_L: return (shifted ? 'L' : 'l');
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case KC_M: return (shifted ? 'M' : 'm');
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case KC_N: return (shifted ? 'N' : 'n');
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case KC_O: return (shifted ? 'O' : 'o');
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case KC_P: return (shifted ? 'P' : 'p');
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case KC_Q: return (shifted ? 'Q' : 'q');
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case KC_R: return (shifted ? 'R' : 'r');
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case KC_S: return (shifted ? 'S' : 's');
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case KC_T: return (shifted ? 'T' : 't');
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case KC_U: return (shifted ? 'U' : 'u');
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case KC_V: return (shifted ? 'V' : 'v');
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case KC_W: return (shifted ? 'W' : 'w');
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case KC_X: return (shifted ? 'X' : 'x');
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case KC_Y: return (shifted ? 'Y' : 'y');
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case KC_Z: return (shifted ? 'Z' : 'z');
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case KC_1: return (shifted ? '!' : '1');
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case KC_2: return (shifted ? '@' : '2');
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case KC_3: return (shifted ? '#' : '3');
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case KC_4: return (shifted ? '$' : '4');
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case KC_5: return (shifted ? '%' : '5');
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case KC_6: return (shifted ? '^' : '6');
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case KC_7: return (shifted ? '&' : '7');
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case KC_8: return (shifted ? '*' : '8');
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case KC_9: return (shifted ? '(' : '9');
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case KC_0: return (shifted ? ')' : '0');
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case KC_ENTER: return '\n';
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case KC_ESCAPE: return 0x1B;
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case KC_BSPACE: return '\b';
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case KC_TAB: return '\t';
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case KC_SPACE: return ' ';
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case KC_MINUS: return (shifted ? '_' : '-');
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case KC_EQUAL: return (shifted ? '+' : '=');
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case KC_LBRACKET: return (shifted ? '{' : '[');
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case KC_RBRACKET: return (shifted ? '}' : ']');
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case KC_BSLASH: return (shifted ? '|' : '\\');
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case KC_NONUS_HASH: return (shifted ? '|' : '\\');
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case KC_SCOLON: return (shifted ? ':' : ';');
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case KC_QUOTE: return (shifted ? '"' : '\'');
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case KC_GRAVE: return (shifted ? '~' : '`');
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case KC_COMMA: return (shifted ? '<' : ',');
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case KC_DOT: return (shifted ? '>' : '.');
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case KC_SLASH: return (shifted ? '?' : '/');
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case KC_DELETE: return '\0'; // Delete to disconnect
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default: return ' ';
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}
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}
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