diff options
Diffstat (limited to 'keyboard/hhkb/rn42/rn42.c')
| -rw-r--r-- | keyboard/hhkb/rn42/rn42.c | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/keyboard/hhkb/rn42/rn42.c b/keyboard/hhkb/rn42/rn42.c new file mode 100644 index 000000000..756285d7b --- /dev/null +++ b/keyboard/hhkb/rn42/rn42.c @@ -0,0 +1,237 @@ +#include <avr/io.h> +#include "host.h" +#include "host_driver.h" +#include "serial.h" +#include "rn42.h" +#include "print.h" +#include "timer.h" +#include "wait.h" + + +/* 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); + +host_driver_t rn42_driver = { + keyboard_leds, + send_keyboard, + send_mouse, + send_system, + send_consumer +}; + + +void rn42_init(void) +{ + // JTAG disable for PORT F. write JTD bit twice within four cycles. + MCUCR |= (1<<JTD); + MCUCR |= (1<<JTD); + + // PF7: BT connection control(high: connect, low: disconnect) + rn42_autoconnect(); + + // PF6: linked(input without pull-up) + DDRF &= ~(1<<6); + PORTF |= (1<<6); + + // PF1: RTS(low: allowed to send, high: not allowed) + DDRF &= ~(1<<1); + PORTF &= ~(1<<1); + + // PD5: CTS(low: allow to send, high:not allow) + DDRD |= (1<<5); + PORTD &= ~(1<<5); + + serial_init(); +} + +int16_t rn42_getc(void) +{ + return serial_recv2(); +} + +const char *rn42_gets(uint16_t timeout) +{ + static char s[24]; + uint16_t t = timer_read(); + uint8_t i = 0; + int16_t c; + while (i < 23 && timer_elapsed(t) < timeout) { + if ((c = rn42_getc()) != -1) { + if ((char)c == '\r') continue; + if ((char)c == '\n') break; + s[i++] = c; + } + } + s[i] = '\0'; + return s; +} + +void rn42_putc(uint8_t c) +{ + serial_send(c); +} + +void rn42_puts(char *s) +{ + while (*s) + serial_send(*s++); +} + +bool rn42_autoconnecting(void) +{ + // GPIO6 for control connection(high: auto connect, low: disconnect) + // Note that this needs config: SM,4(Auto-Connect DTR Mode) + return (PORTF & (1<<7) ? true : false); +} + +void rn42_autoconnect(void) +{ + // hi to auto connect + DDRF |= (1<<7); + PORTF |= (1<<7); +} + +void rn42_disconnect(void) +{ + // low to disconnect + DDRF |= (1<<7); + PORTF &= ~(1<<7); +} + +bool rn42_rts(void) +{ + // low when RN-42 is powered and ready to receive + return PINF&(1<<1); +} + +void rn42_cts_hi(void) +{ + // not allow to send + PORTD |= (1<<5); +} + +void rn42_cts_lo(void) +{ + // allow to send + PORTD &= ~(1<<5); +} + +bool rn42_linked(void) +{ + // RN-42 GPIO2 + // Hi-Z: Not powered + // High: Linked + // Low: Connecting + return PINF&(1<<6); +} + + +static uint8_t leds = 0; +static uint8_t keyboard_leds(void) { return leds; } +void rn42_set_leds(uint8_t l) { leds = l; } + +static void send_keyboard(report_keyboard_t *report) +{ + // wake from deep sleep +/* + PORTD |= (1<<5); // high + wait_ms(5); + PORTD &= ~(1<<5); // low +*/ + + serial_send(0xFD); // Raw report mode + serial_send(9); // length + serial_send(1); // descriptor type + serial_send(report->mods); + serial_send(0x00); + serial_send(report->keys[0]); + serial_send(report->keys[1]); + serial_send(report->keys[2]); + serial_send(report->keys[3]); + serial_send(report->keys[4]); + serial_send(report->keys[5]); +} + +static void send_mouse(report_mouse_t *report) +{ + // wake from deep sleep +/* + PORTD |= (1<<5); // high + wait_ms(5); + PORTD &= ~(1<<5); // low +*/ + + serial_send(0xFD); // Raw report mode + serial_send(5); // length + serial_send(2); // descriptor type + serial_send(report->buttons); + serial_send(report->x); + serial_send(report->y); + serial_send(report->v); +} + +static void send_system(uint16_t data) +{ + // Table 5-6 of RN-BT-DATA-UB + // 81,82,83 scan codes can be used? +} + + +static uint16_t usage2bits(uint16_t usage) +{ + switch (usage) { + case AC_HOME: return 0x01; + case AL_EMAIL: return 0x02; + case AC_SEARCH: return 0x04; + //case AL_KBD_LAYOUT: return 0x08; // Apple virtual keybaord toggle + case AUDIO_VOL_UP: return 0x10; + case AUDIO_VOL_DOWN: return 0x20; + case AUDIO_MUTE: return 0x40; + case TRANSPORT_PLAY_PAUSE: return 0x80; + case TRANSPORT_NEXT_TRACK: return 0x100; + case TRANSPORT_PREV_TRACK: return 0x200; + case TRANSPORT_STOP: return 0x400; + case TRANSPORT_STOP_EJECT: return 0x800; + //case return 0x1000; // Fast forward + //case return 0x2000; // Rewind + //case return 0x4000; // Stop/eject + //case return 0x8000; // Internet browser + }; + return 0; +} + +static void send_consumer(uint16_t data) +{ + uint16_t bits = usage2bits(data); + serial_send(0xFD); // Raw report mode + serial_send(3); // length + serial_send(3); // descriptor type + serial_send(bits&0xFF); + serial_send((bits>>8)&0xFF); +} + + +/* Null driver for config_mode */ +static uint8_t config_keyboard_leds(void); +static void config_send_keyboard(report_keyboard_t *report); +static void config_send_mouse(report_mouse_t *report); +static void config_send_system(uint16_t data); +static void config_send_consumer(uint16_t data); + +host_driver_t rn42_config_driver = { + config_keyboard_leds, + config_send_keyboard, + config_send_mouse, + config_send_system, + config_send_consumer +}; + +static uint8_t config_keyboard_leds(void) { return leds; } +static void config_send_keyboard(report_keyboard_t *report) {} +static void config_send_mouse(report_mouse_t *report) {} +static void config_send_system(uint16_t data) {} +static void config_send_consumer(uint16_t data) {} |