686 lines
20 KiB
C++
686 lines
20 KiB
C++
#include "bluefruit_le.h"
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <alloca.h>
|
|
#include "debug.h"
|
|
#include "timer.h"
|
|
#include "gpio.h"
|
|
#include "ringbuffer.hpp"
|
|
#include <string.h>
|
|
#include "spi_master.h"
|
|
#include "wait.h"
|
|
#include "analog.h"
|
|
#include "progmem.h"
|
|
|
|
// These are the pin assignments for the 32u4 boards.
|
|
// You may define them to something else in your config.h
|
|
// if yours is wired up differently.
|
|
#ifndef BLUEFRUIT_LE_RST_PIN
|
|
# define BLUEFRUIT_LE_RST_PIN D4
|
|
#endif
|
|
|
|
#ifndef BLUEFRUIT_LE_CS_PIN
|
|
# define BLUEFRUIT_LE_CS_PIN B4
|
|
#endif
|
|
|
|
#ifndef BLUEFRUIT_LE_IRQ_PIN
|
|
# define BLUEFRUIT_LE_IRQ_PIN E6
|
|
#endif
|
|
|
|
#ifndef BLUEFRUIT_LE_SCK_DIVISOR
|
|
# define BLUEFRUIT_LE_SCK_DIVISOR 2 // 4MHz SCK/8MHz CPU, calculated for Feather 32U4 BLE
|
|
#endif
|
|
|
|
#define SAMPLE_BATTERY
|
|
#define ConnectionUpdateInterval 1000 /* milliseconds */
|
|
|
|
#ifndef BATTERY_LEVEL_PIN
|
|
# define BATTERY_LEVEL_PIN B5
|
|
#endif
|
|
|
|
static struct {
|
|
bool is_connected;
|
|
bool initialized;
|
|
bool configured;
|
|
|
|
#define ProbedEvents 1
|
|
#define UsingEvents 2
|
|
bool event_flags;
|
|
|
|
#ifdef SAMPLE_BATTERY
|
|
uint16_t last_battery_update;
|
|
uint32_t vbat;
|
|
#endif
|
|
uint16_t last_connection_update;
|
|
} state;
|
|
|
|
// Commands are encoded using SDEP and sent via SPI
|
|
// https://github.com/adafruit/Adafruit_BluefruitLE_nRF51/blob/master/SDEP.md
|
|
|
|
#define SdepMaxPayload 16
|
|
struct sdep_msg {
|
|
uint8_t type;
|
|
uint8_t cmd_low;
|
|
uint8_t cmd_high;
|
|
struct __attribute__((packed)) {
|
|
uint8_t len : 7;
|
|
uint8_t more : 1;
|
|
};
|
|
uint8_t payload[SdepMaxPayload];
|
|
} __attribute__((packed));
|
|
|
|
// The recv latency is relatively high, so when we're hammering keys quickly,
|
|
// we want to avoid waiting for the responses in the matrix loop. We maintain
|
|
// a short queue for that. Since there is quite a lot of space overhead for
|
|
// the AT command representation wrapped up in SDEP, we queue the minimal
|
|
// information here.
|
|
|
|
enum queue_type {
|
|
QTKeyReport, // 1-byte modifier + 6-byte key report
|
|
QTConsumer, // 16-bit key code
|
|
QTMouseMove, // 4-byte mouse report
|
|
};
|
|
|
|
struct queue_item {
|
|
enum queue_type queue_type;
|
|
uint16_t added;
|
|
union __attribute__((packed)) {
|
|
struct __attribute__((packed)) {
|
|
uint8_t modifier;
|
|
uint8_t keys[6];
|
|
} key;
|
|
|
|
uint16_t consumer;
|
|
struct __attribute__((packed)) {
|
|
int8_t x, y, scroll, pan;
|
|
uint8_t buttons;
|
|
} mousemove;
|
|
};
|
|
};
|
|
|
|
// Items that we wish to send
|
|
static RingBuffer<queue_item, 40> send_buf;
|
|
// Pending response; while pending, we can't send any more requests.
|
|
// This records the time at which we sent the command for which we
|
|
// are expecting a response.
|
|
static RingBuffer<uint16_t, 2> resp_buf;
|
|
|
|
static bool process_queue_item(struct queue_item *item, uint16_t timeout);
|
|
|
|
enum sdep_type {
|
|
SdepCommand = 0x10,
|
|
SdepResponse = 0x20,
|
|
SdepAlert = 0x40,
|
|
SdepError = 0x80,
|
|
SdepSlaveNotReady = 0xFE, // Try again later
|
|
SdepSlaveOverflow = 0xFF, // You read more data than is available
|
|
};
|
|
|
|
enum ble_cmd {
|
|
BleInitialize = 0xBEEF,
|
|
BleAtWrapper = 0x0A00,
|
|
BleUartTx = 0x0A01,
|
|
BleUartRx = 0x0A02,
|
|
};
|
|
|
|
enum ble_system_event_bits {
|
|
BleSystemConnected = 0,
|
|
BleSystemDisconnected = 1,
|
|
BleSystemUartRx = 8,
|
|
BleSystemMidiRx = 10,
|
|
};
|
|
|
|
#define SdepTimeout 150 /* milliseconds */
|
|
#define SdepShortTimeout 10 /* milliseconds */
|
|
#define SdepBackOff 25 /* microseconds */
|
|
#define BatteryUpdateInterval 10000 /* milliseconds */
|
|
|
|
static bool at_command(const char *cmd, char *resp, uint16_t resplen, bool verbose, uint16_t timeout = SdepTimeout);
|
|
static bool at_command_P(const char *cmd, char *resp, uint16_t resplen, bool verbose = false);
|
|
|
|
// Send a single SDEP packet
|
|
static bool sdep_send_pkt(const struct sdep_msg *msg, uint16_t timeout) {
|
|
spi_start(BLUEFRUIT_LE_CS_PIN, false, 0, BLUEFRUIT_LE_SCK_DIVISOR);
|
|
uint16_t timerStart = timer_read();
|
|
bool success = false;
|
|
bool ready = false;
|
|
|
|
do {
|
|
ready = spi_write(msg->type) != SdepSlaveNotReady;
|
|
if (ready) {
|
|
break;
|
|
}
|
|
|
|
// Release it and let it initialize
|
|
spi_stop();
|
|
wait_us(SdepBackOff);
|
|
spi_start(BLUEFRUIT_LE_CS_PIN, false, 0, BLUEFRUIT_LE_SCK_DIVISOR);
|
|
} while (timer_elapsed(timerStart) < timeout);
|
|
|
|
if (ready) {
|
|
// Slave is ready; send the rest of the packet
|
|
spi_transmit(&msg->cmd_low, sizeof(*msg) - (1 + sizeof(msg->payload)) + msg->len);
|
|
success = true;
|
|
}
|
|
|
|
spi_stop();
|
|
|
|
return success;
|
|
}
|
|
|
|
static inline void sdep_build_pkt(struct sdep_msg *msg, uint16_t command, const uint8_t *payload, uint8_t len, bool moredata) {
|
|
msg->type = SdepCommand;
|
|
msg->cmd_low = command & 0xFF;
|
|
msg->cmd_high = command >> 8;
|
|
msg->len = len;
|
|
msg->more = (moredata && len == SdepMaxPayload) ? 1 : 0;
|
|
|
|
static_assert(sizeof(*msg) == 20, "msg is correctly packed");
|
|
|
|
memcpy(msg->payload, payload, len);
|
|
}
|
|
|
|
// Read a single SDEP packet
|
|
static bool sdep_recv_pkt(struct sdep_msg *msg, uint16_t timeout) {
|
|
bool success = false;
|
|
uint16_t timerStart = timer_read();
|
|
bool ready = false;
|
|
|
|
do {
|
|
ready = gpio_read_pin(BLUEFRUIT_LE_IRQ_PIN);
|
|
if (ready) {
|
|
break;
|
|
}
|
|
wait_us(1);
|
|
} while (timer_elapsed(timerStart) < timeout);
|
|
|
|
if (ready) {
|
|
spi_start(BLUEFRUIT_LE_CS_PIN, false, 0, BLUEFRUIT_LE_SCK_DIVISOR);
|
|
|
|
do {
|
|
// Read the command type, waiting for the data to be ready
|
|
msg->type = spi_read();
|
|
if (msg->type == SdepSlaveNotReady || msg->type == SdepSlaveOverflow) {
|
|
// Release it and let it initialize
|
|
spi_stop();
|
|
wait_us(SdepBackOff);
|
|
spi_start(BLUEFRUIT_LE_CS_PIN, false, 0, BLUEFRUIT_LE_SCK_DIVISOR);
|
|
continue;
|
|
}
|
|
|
|
// Read the rest of the header
|
|
spi_receive(&msg->cmd_low, sizeof(*msg) - (1 + sizeof(msg->payload)));
|
|
|
|
// and get the payload if there is any
|
|
if (msg->len <= SdepMaxPayload) {
|
|
spi_receive(msg->payload, msg->len);
|
|
}
|
|
success = true;
|
|
break;
|
|
} while (timer_elapsed(timerStart) < timeout);
|
|
|
|
spi_stop();
|
|
}
|
|
return success;
|
|
}
|
|
|
|
static void resp_buf_read_one(bool greedy) {
|
|
uint16_t last_send;
|
|
if (!resp_buf.peek(last_send)) {
|
|
return;
|
|
}
|
|
|
|
if (gpio_read_pin(BLUEFRUIT_LE_IRQ_PIN)) {
|
|
struct sdep_msg msg;
|
|
|
|
again:
|
|
if (sdep_recv_pkt(&msg, SdepTimeout)) {
|
|
if (!msg.more) {
|
|
// We got it; consume this entry
|
|
resp_buf.get(last_send);
|
|
dprintf("recv latency %dms\n", TIMER_DIFF_16(timer_read(), last_send));
|
|
}
|
|
|
|
if (greedy && resp_buf.peek(last_send) && gpio_read_pin(BLUEFRUIT_LE_IRQ_PIN)) {
|
|
goto again;
|
|
}
|
|
}
|
|
|
|
} else if (timer_elapsed(last_send) > SdepTimeout * 2) {
|
|
dprintf("waiting_for_result: timeout, resp_buf size %d\n", (int)resp_buf.size());
|
|
|
|
// Timed out: consume this entry
|
|
resp_buf.get(last_send);
|
|
}
|
|
}
|
|
|
|
static void send_buf_send_one(uint16_t timeout = SdepTimeout) {
|
|
struct queue_item item;
|
|
|
|
// Don't send anything more until we get an ACK
|
|
if (!resp_buf.empty()) {
|
|
return;
|
|
}
|
|
|
|
if (!send_buf.peek(item)) {
|
|
return;
|
|
}
|
|
if (process_queue_item(&item, timeout)) {
|
|
// commit that peek
|
|
send_buf.get(item);
|
|
dprintf("send_buf_send_one: have %d remaining\n", (int)send_buf.size());
|
|
} else {
|
|
dprint("failed to send, will retry\n");
|
|
wait_ms(SdepTimeout);
|
|
resp_buf_read_one(true);
|
|
}
|
|
}
|
|
|
|
static void resp_buf_wait(const char *cmd) {
|
|
bool didPrint = false;
|
|
while (!resp_buf.empty()) {
|
|
if (!didPrint) {
|
|
dprintf("wait on buf for %s\n", cmd);
|
|
didPrint = true;
|
|
}
|
|
resp_buf_read_one(true);
|
|
}
|
|
}
|
|
|
|
void bluefruit_le_init(void) {
|
|
state.initialized = false;
|
|
state.configured = false;
|
|
state.is_connected = false;
|
|
|
|
gpio_set_pin_input(BLUEFRUIT_LE_IRQ_PIN);
|
|
|
|
spi_init();
|
|
|
|
// Perform a hardware reset
|
|
gpio_set_pin_output(BLUEFRUIT_LE_RST_PIN);
|
|
gpio_write_pin_high(BLUEFRUIT_LE_RST_PIN);
|
|
gpio_write_pin_low(BLUEFRUIT_LE_RST_PIN);
|
|
wait_ms(10);
|
|
gpio_write_pin_high(BLUEFRUIT_LE_RST_PIN);
|
|
|
|
wait_ms(1000); // Give it a second to initialize
|
|
|
|
state.initialized = true;
|
|
}
|
|
|
|
static inline uint8_t min(uint8_t a, uint8_t b) {
|
|
return a < b ? a : b;
|
|
}
|
|
|
|
static bool read_response(char *resp, uint16_t resplen, bool verbose) {
|
|
char *dest = resp;
|
|
char *end = dest + resplen;
|
|
|
|
while (true) {
|
|
struct sdep_msg msg;
|
|
|
|
if (!sdep_recv_pkt(&msg, 2 * SdepTimeout)) {
|
|
dprint("sdep_recv_pkt failed\n");
|
|
return false;
|
|
}
|
|
|
|
if (msg.type != SdepResponse) {
|
|
*resp = 0;
|
|
return false;
|
|
}
|
|
|
|
uint8_t len = min(msg.len, end - dest);
|
|
if (len > 0) {
|
|
memcpy(dest, msg.payload, len);
|
|
dest += len;
|
|
}
|
|
|
|
if (!msg.more) {
|
|
// No more data is expected!
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Ensure the response is NUL terminated
|
|
*dest = 0;
|
|
|
|
// "Parse" the result text; we want to snip off the trailing OK or ERROR line
|
|
// Rewind past the possible trailing CRLF so that we can strip it
|
|
--dest;
|
|
while (dest > resp && (dest[0] == '\n' || dest[0] == '\r')) {
|
|
*dest = 0;
|
|
--dest;
|
|
}
|
|
|
|
// Look back for start of preceeding line
|
|
char *last_line = strrchr(resp, '\n');
|
|
if (last_line) {
|
|
++last_line;
|
|
} else {
|
|
last_line = resp;
|
|
}
|
|
|
|
bool success = false;
|
|
static const char kOK[] PROGMEM = "OK";
|
|
|
|
success = !strcmp_P(last_line, kOK);
|
|
|
|
if (verbose || !success) {
|
|
dprintf("result: %s\n", resp);
|
|
}
|
|
return success;
|
|
}
|
|
|
|
static bool at_command(const char *cmd, char *resp, uint16_t resplen, bool verbose, uint16_t timeout) {
|
|
const char * end = cmd + strlen(cmd);
|
|
struct sdep_msg msg;
|
|
|
|
if (verbose) {
|
|
dprintf("ble send: %s\n", cmd);
|
|
}
|
|
|
|
if (resp) {
|
|
// They want to decode the response, so we need to flush and wait
|
|
// for all pending I/O to finish before we start this one, so
|
|
// that we don't confuse the results
|
|
resp_buf_wait(cmd);
|
|
*resp = 0;
|
|
}
|
|
|
|
// Fragment the command into a series of SDEP packets
|
|
while (end - cmd > SdepMaxPayload) {
|
|
sdep_build_pkt(&msg, BleAtWrapper, (uint8_t *)cmd, SdepMaxPayload, true);
|
|
if (!sdep_send_pkt(&msg, timeout)) {
|
|
return false;
|
|
}
|
|
cmd += SdepMaxPayload;
|
|
}
|
|
|
|
sdep_build_pkt(&msg, BleAtWrapper, (uint8_t *)cmd, end - cmd, false);
|
|
if (!sdep_send_pkt(&msg, timeout)) {
|
|
return false;
|
|
}
|
|
|
|
if (resp == NULL) {
|
|
uint16_t now = timer_read();
|
|
while (!resp_buf.enqueue(now)) {
|
|
resp_buf_read_one(false);
|
|
}
|
|
uint16_t later = timer_read();
|
|
if (TIMER_DIFF_16(later, now) > 0) {
|
|
dprintf("waited %dms for resp_buf\n", TIMER_DIFF_16(later, now));
|
|
}
|
|
return true;
|
|
}
|
|
|
|
return read_response(resp, resplen, verbose);
|
|
}
|
|
|
|
bool at_command_P(const char *cmd, char *resp, uint16_t resplen, bool verbose) {
|
|
char *cmdbuf = (char *)alloca(strlen_P(cmd) + 1);
|
|
strcpy_P(cmdbuf, cmd);
|
|
return at_command(cmdbuf, resp, resplen, verbose);
|
|
}
|
|
|
|
bool bluefruit_le_is_connected(void) {
|
|
return state.is_connected;
|
|
}
|
|
|
|
bool bluefruit_le_enable_keyboard(void) {
|
|
char resbuf[128];
|
|
|
|
if (!state.initialized) {
|
|
return false;
|
|
}
|
|
|
|
state.configured = false;
|
|
|
|
// Disable command echo
|
|
static const char kEcho[] PROGMEM = "ATE=0";
|
|
// Make the advertised name match the keyboard
|
|
static const char kGapDevName[] PROGMEM = "AT+GAPDEVNAME=" PRODUCT;
|
|
// Turn on keyboard support
|
|
static const char kHidEnOn[] PROGMEM = "AT+BLEHIDEN=1";
|
|
|
|
// Adjust intervals to improve latency. This causes the "central"
|
|
// system (computer/tablet) to poll us every 10-30 ms. We can't
|
|
// set a smaller value than 10ms, and 30ms seems to be the natural
|
|
// processing time on my macbook. Keeping it constrained to that
|
|
// feels reasonable to type to.
|
|
static const char kGapIntervals[] PROGMEM = "AT+GAPINTERVALS=10,30,,";
|
|
|
|
// Reset the device so that it picks up the above changes
|
|
static const char kATZ[] PROGMEM = "ATZ";
|
|
|
|
// Turn down the power level a bit
|
|
static const char kPower[] PROGMEM = "AT+BLEPOWERLEVEL=-12";
|
|
static PGM_P const configure_commands[] PROGMEM = {
|
|
kEcho, kGapIntervals, kGapDevName, kHidEnOn, kPower, kATZ,
|
|
};
|
|
|
|
uint8_t i;
|
|
for (i = 0; i < sizeof(configure_commands) / sizeof(configure_commands[0]); ++i) {
|
|
PGM_P cmd;
|
|
memcpy_P(&cmd, configure_commands + i, sizeof(cmd));
|
|
|
|
if (!at_command_P(cmd, resbuf, sizeof(resbuf))) {
|
|
dprintf("failed BLE command: %S: %s\n", cmd, resbuf);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
state.configured = true;
|
|
|
|
// Check connection status in a little while; allow the ATZ time
|
|
// to kick in.
|
|
state.last_connection_update = timer_read();
|
|
fail:
|
|
return state.configured;
|
|
}
|
|
|
|
static void set_connected(bool connected) {
|
|
if (connected != state.is_connected) {
|
|
if (connected) {
|
|
dprint("BLE connected\n");
|
|
} else {
|
|
dprint("BLE disconnected\n");
|
|
}
|
|
state.is_connected = connected;
|
|
|
|
// TODO: if modifiers are down on the USB interface and
|
|
// we cut over to BLE or vice versa, they will remain stuck.
|
|
// This feels like a good point to do something like clearing
|
|
// the keyboard and/or generating a fake all keys up message.
|
|
// However, I've noticed that it takes a couple of seconds
|
|
// for macOS to to start recognizing key presses after BLE
|
|
// is in the connected state, so I worry that doing that
|
|
// here may not be good enough.
|
|
}
|
|
}
|
|
|
|
void bluefruit_le_task(void) {
|
|
char resbuf[48];
|
|
|
|
if (!state.configured && !bluefruit_le_enable_keyboard()) {
|
|
return;
|
|
}
|
|
resp_buf_read_one(true);
|
|
send_buf_send_one(SdepShortTimeout);
|
|
|
|
if (resp_buf.empty() && (state.event_flags & UsingEvents) && gpio_read_pin(BLUEFRUIT_LE_IRQ_PIN)) {
|
|
// Must be an event update
|
|
if (at_command_P(PSTR("AT+EVENTSTATUS"), resbuf, sizeof(resbuf))) {
|
|
uint32_t mask = strtoul(resbuf, NULL, 16);
|
|
|
|
if (mask & BleSystemConnected) {
|
|
set_connected(true);
|
|
} else if (mask & BleSystemDisconnected) {
|
|
set_connected(false);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (timer_elapsed(state.last_connection_update) > ConnectionUpdateInterval) {
|
|
bool shouldPoll = true;
|
|
if (!(state.event_flags & ProbedEvents)) {
|
|
// Request notifications about connection status changes.
|
|
// This only works in SPIFRIEND firmware > 0.6.7, which is why
|
|
// we check for this conditionally here.
|
|
// Note that at the time of writing, HID reports only work correctly
|
|
// with Apple products on firmware version 0.6.7!
|
|
// https://forums.adafruit.com/viewtopic.php?f=8&t=104052
|
|
if (at_command_P(PSTR("AT+EVENTENABLE=0x1"), resbuf, sizeof(resbuf))) {
|
|
at_command_P(PSTR("AT+EVENTENABLE=0x2"), resbuf, sizeof(resbuf));
|
|
state.event_flags |= UsingEvents;
|
|
}
|
|
state.event_flags |= ProbedEvents;
|
|
|
|
// leave shouldPoll == true so that we check at least once
|
|
// before relying solely on events
|
|
} else {
|
|
shouldPoll = false;
|
|
}
|
|
|
|
static const char kGetConn[] PROGMEM = "AT+GAPGETCONN";
|
|
state.last_connection_update = timer_read();
|
|
|
|
if (at_command_P(kGetConn, resbuf, sizeof(resbuf))) {
|
|
set_connected(atoi(resbuf));
|
|
}
|
|
}
|
|
|
|
#ifdef SAMPLE_BATTERY
|
|
if (timer_elapsed(state.last_battery_update) > BatteryUpdateInterval && resp_buf.empty()) {
|
|
state.last_battery_update = timer_read();
|
|
|
|
state.vbat = analogReadPin(BATTERY_LEVEL_PIN);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static bool process_queue_item(struct queue_item *item, uint16_t timeout) {
|
|
char cmdbuf[48];
|
|
char fmtbuf[64];
|
|
|
|
// Arrange to re-check connection after keys have settled
|
|
state.last_connection_update = timer_read();
|
|
|
|
#if 1
|
|
if (TIMER_DIFF_16(state.last_connection_update, item->added) > 0) {
|
|
dprintf("send latency %dms\n", TIMER_DIFF_16(state.last_connection_update, item->added));
|
|
}
|
|
#endif
|
|
|
|
switch (item->queue_type) {
|
|
case QTKeyReport:
|
|
strcpy_P(fmtbuf, PSTR("AT+BLEKEYBOARDCODE=%02x-00-%02x-%02x-%02x-%02x-%02x-%02x"));
|
|
snprintf(cmdbuf, sizeof(cmdbuf), fmtbuf, item->key.modifier, item->key.keys[0], item->key.keys[1], item->key.keys[2], item->key.keys[3], item->key.keys[4], item->key.keys[5]);
|
|
return at_command(cmdbuf, NULL, 0, true, timeout);
|
|
|
|
#ifdef EXTRAKEY_ENABLE
|
|
case QTConsumer:
|
|
strcpy_P(fmtbuf, PSTR("AT+BLEHIDCONTROLKEY=0x%04x"));
|
|
snprintf(cmdbuf, sizeof(cmdbuf), fmtbuf, item->consumer);
|
|
return at_command(cmdbuf, NULL, 0, true, timeout);
|
|
#endif
|
|
|
|
#ifdef MOUSE_ENABLE
|
|
case QTMouseMove:
|
|
strcpy_P(fmtbuf, PSTR("AT+BLEHIDMOUSEMOVE=%d,%d,%d,%d"));
|
|
snprintf(cmdbuf, sizeof(cmdbuf), fmtbuf, item->mousemove.x, item->mousemove.y, item->mousemove.scroll, item->mousemove.pan);
|
|
if (!at_command(cmdbuf, NULL, 0, true, timeout)) {
|
|
return false;
|
|
}
|
|
strcpy_P(cmdbuf, PSTR("AT+BLEHIDMOUSEBUTTON="));
|
|
if (item->mousemove.buttons & MOUSE_BTN1) {
|
|
strcat(cmdbuf, "L");
|
|
}
|
|
if (item->mousemove.buttons & MOUSE_BTN2) {
|
|
strcat(cmdbuf, "R");
|
|
}
|
|
if (item->mousemove.buttons & MOUSE_BTN3) {
|
|
strcat(cmdbuf, "M");
|
|
}
|
|
if (item->mousemove.buttons == 0) {
|
|
strcat(cmdbuf, "0");
|
|
}
|
|
return at_command(cmdbuf, NULL, 0, true, timeout);
|
|
#endif
|
|
default:
|
|
return true;
|
|
}
|
|
}
|
|
|
|
void bluefruit_le_send_keyboard(report_keyboard_t *report) {
|
|
struct queue_item item;
|
|
|
|
item.queue_type = QTKeyReport;
|
|
item.key.modifier = report->mods;
|
|
item.key.keys[0] = report->keys[0];
|
|
item.key.keys[1] = report->keys[1];
|
|
item.key.keys[2] = report->keys[2];
|
|
item.key.keys[3] = report->keys[3];
|
|
item.key.keys[4] = report->keys[4];
|
|
item.key.keys[5] = report->keys[5];
|
|
|
|
while (!send_buf.enqueue(item)) {
|
|
send_buf_send_one();
|
|
}
|
|
}
|
|
|
|
void bluefruit_le_send_consumer(uint16_t usage) {
|
|
struct queue_item item;
|
|
|
|
item.queue_type = QTConsumer;
|
|
item.consumer = usage;
|
|
|
|
while (!send_buf.enqueue(item)) {
|
|
send_buf_send_one();
|
|
}
|
|
}
|
|
|
|
void bluefruit_le_send_mouse(report_mouse_t *report) {
|
|
struct queue_item item;
|
|
|
|
item.queue_type = QTMouseMove;
|
|
item.mousemove.x = report->x;
|
|
item.mousemove.y = report->y;
|
|
item.mousemove.scroll = report->v;
|
|
item.mousemove.pan = report->h;
|
|
item.mousemove.buttons = report->buttons;
|
|
|
|
while (!send_buf.enqueue(item)) {
|
|
send_buf_send_one();
|
|
}
|
|
}
|
|
|
|
uint32_t bluefruit_le_read_battery_voltage(void) {
|
|
return state.vbat;
|
|
}
|
|
|
|
bool bluefruit_le_set_mode_leds(bool on) {
|
|
if (!state.configured) {
|
|
return false;
|
|
}
|
|
|
|
// The "mode" led is the red blinky one
|
|
at_command_P(on ? PSTR("AT+HWMODELED=1") : PSTR("AT+HWMODELED=0"), NULL, 0);
|
|
|
|
// Pin 19 is the blue "connected" LED; turn that off too.
|
|
// When turning LEDs back on, don't turn that LED on if we're
|
|
// not connected, as that would be confusing.
|
|
at_command_P(on && state.is_connected ? PSTR("AT+HWGPIO=19,1") : PSTR("AT+HWGPIO=19,0"), NULL, 0);
|
|
return true;
|
|
}
|
|
|
|
// https://learn.adafruit.com/adafruit-feather-32u4-bluefruit-le/ble-generic#at-plus-blepowerlevel
|
|
bool bluefruit_le_set_power_level(int8_t level) {
|
|
char cmd[46];
|
|
if (!state.configured) {
|
|
return false;
|
|
}
|
|
snprintf(cmd, sizeof(cmd), "AT+BLEPOWERLEVEL=%d", level);
|
|
return at_command(cmd, NULL, 0, false);
|
|
}
|