302 lines
10 KiB
C
302 lines
10 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include <string.h>
|
|
|
|
#include "supervisor/shared/bluetooth/bluetooth.h"
|
|
|
|
#include "shared-bindings/_bleio/__init__.h"
|
|
#include "shared-bindings/_bleio/Adapter.h"
|
|
#if defined(CIRCUITPY_BOOT_BUTTON)
|
|
#include "shared-bindings/digitalio/DigitalInOut.h"
|
|
#endif
|
|
#include "shared-bindings/microcontroller/Processor.h"
|
|
#include "shared-bindings/microcontroller/ResetReason.h"
|
|
#include "shared-module/storage/__init__.h"
|
|
|
|
#include "common-hal/_bleio/__init__.h"
|
|
|
|
#include "supervisor/shared/status_leds.h"
|
|
#include "supervisor/shared/tick.h"
|
|
|
|
#include "py/mpstate.h"
|
|
|
|
#if CIRCUITPY_BLE_FILE_SERVICE
|
|
#include "supervisor/shared/bluetooth/file_transfer.h"
|
|
#include "bluetooth/ble_drv.h"
|
|
#endif
|
|
|
|
#if CIRCUITPY_SERIAL_BLE
|
|
#include "supervisor/shared/bluetooth/serial.h"
|
|
#include "bluetooth/ble_drv.h"
|
|
#endif
|
|
|
|
// This standard advertisement advertises the CircuitPython editing service and a CIRCUITPY short name.
|
|
const uint8_t public_advertising_data[] = { 0x02, 0x01, 0x06, // 0-2 Flags
|
|
0x02, 0x0a, 0xec, // 3-5 TX power level -20
|
|
#if CIRCUITPY_BLE_FILE_SERVICE
|
|
0x03, 0x02, 0xbb, 0xfe, // 6 - 9 Incomplete service list (File Transfer service)
|
|
#endif
|
|
0x0e, 0xff, 0x22, 0x08, // 10 - 13 Adafruit Manufacturer Data
|
|
0x0a, 0x04, 0x00, // 14 - 16 Creator ID / Creation ID
|
|
CIRCUITPY_CREATOR_ID & 0xff, // 17 - 20 Creator ID
|
|
(CIRCUITPY_CREATOR_ID >> 8) & 0xff,
|
|
(CIRCUITPY_CREATOR_ID >> 16) & 0xff,
|
|
(CIRCUITPY_CREATOR_ID >> 24) & 0xff,
|
|
CIRCUITPY_CREATION_ID & 0xff, // 21 - 24 Creation ID
|
|
(CIRCUITPY_CREATION_ID >> 8) & 0xff,
|
|
(CIRCUITPY_CREATION_ID >> 16) & 0xff,
|
|
(CIRCUITPY_CREATION_ID >> 24) & 0xff,
|
|
0x05, 0x08, 0x43, 0x49, 0x52, 0x43 // 25 - 31 - Short name
|
|
};
|
|
const uint8_t private_advertising_data[] = { 0x02, 0x01, 0x06, // 0-2 Flags
|
|
0x02, 0x0a, 0x00 // 3-5 TX power level 0
|
|
};
|
|
// This scan response advertises the full CIRCPYXXXX device name.
|
|
uint8_t circuitpython_scan_response_data[] = {
|
|
0x0a, 0x09, 0x43, 0x49, 0x52, 0x50, 0x59, 0x00, 0x00, 0x00, 0x00,
|
|
#if CIRCUITPY_SERIAL_BLE
|
|
0x11, 0x06, 0x6e, 0x68, 0x74, 0x79, 0x50, 0x74, 0x69, 0x75, 0x63, 0x72, 0x69, 0x43, 0x01, 0x00, 0xaf, 0xad
|
|
#endif
|
|
};
|
|
|
|
|
|
#if CIRCUITPY_BLE_FILE_SERVICE || CIRCUITPY_SERIAL_BLE
|
|
STATIC bool boot_in_discovery_mode = false;
|
|
STATIC bool advertising = false;
|
|
STATIC bool ble_started = false;
|
|
|
|
#define WORKFLOW_UNSET 0
|
|
#define WORKFLOW_ENABLED 1
|
|
#define WORKFLOW_DISABLED 2
|
|
|
|
STATIC uint8_t workflow_state = WORKFLOW_UNSET;
|
|
STATIC bool was_connected = false;
|
|
|
|
STATIC void supervisor_bluetooth_start_advertising(void) {
|
|
if (workflow_state != WORKFLOW_ENABLED) {
|
|
return;
|
|
}
|
|
bool is_connected = common_hal_bleio_adapter_get_connected(&common_hal_bleio_adapter_obj);
|
|
if (is_connected) {
|
|
return;
|
|
}
|
|
bool bonded = common_hal_bleio_adapter_is_bonded_to_central(&common_hal_bleio_adapter_obj);
|
|
#if CIRCUITPY_USB
|
|
// Don't advertise when we have USB instead of BLE.
|
|
if (!bonded && !boot_in_discovery_mode) {
|
|
return;
|
|
}
|
|
#endif
|
|
uint32_t timeout = 0;
|
|
float interval = 0.1f;
|
|
int tx_power = 0;
|
|
const uint8_t *adv = private_advertising_data;
|
|
size_t adv_len = sizeof(private_advertising_data);
|
|
const uint8_t *scan_response = NULL;
|
|
size_t scan_response_len = 0;
|
|
// Advertise with less power when doing so publicly to reduce who can hear us. This will make it
|
|
// harder for someone with bad intentions to pair from a distance.
|
|
if (!bonded) {
|
|
tx_power = -20;
|
|
adv = public_advertising_data;
|
|
adv_len = sizeof(public_advertising_data);
|
|
scan_response = circuitpython_scan_response_data;
|
|
scan_response_len = sizeof(circuitpython_scan_response_data);
|
|
}
|
|
uint32_t status = _common_hal_bleio_adapter_start_advertising(&common_hal_bleio_adapter_obj,
|
|
true,
|
|
bonded, // Advertise anonymously if we are bonded
|
|
timeout,
|
|
interval,
|
|
adv,
|
|
adv_len,
|
|
scan_response,
|
|
scan_response_len,
|
|
tx_power,
|
|
NULL);
|
|
// This may fail if we are already advertising.
|
|
advertising = status == NRF_SUCCESS;
|
|
}
|
|
|
|
#endif // CIRCUITPY_BLE_FILE_SERVICE || CIRCUITPY_SERIAL_BLE
|
|
|
|
#define BLE_DISCOVERY_DATA_GUARD 0xbb0000bb
|
|
#define BLE_DISCOVERY_DATA_GUARD_MASK 0xff0000ff
|
|
|
|
void supervisor_bluetooth_init(void) {
|
|
#if CIRCUITPY_BLE_FILE_SERVICE || CIRCUITPY_SERIAL_BLE
|
|
uint32_t reset_state = port_get_saved_word();
|
|
uint32_t ble_mode = 0;
|
|
if ((reset_state & BLE_DISCOVERY_DATA_GUARD_MASK) == BLE_DISCOVERY_DATA_GUARD) {
|
|
ble_mode = (reset_state & ~BLE_DISCOVERY_DATA_GUARD_MASK) >> 8;
|
|
}
|
|
const mcu_reset_reason_t reset_reason = common_hal_mcu_processor_get_reset_reason();
|
|
boot_in_discovery_mode = false;
|
|
if (reset_reason != RESET_REASON_POWER_ON &&
|
|
reset_reason != RESET_REASON_RESET_PIN &&
|
|
reset_reason != RESET_REASON_UNKNOWN &&
|
|
reset_reason != RESET_REASON_SOFTWARE) {
|
|
return;
|
|
}
|
|
|
|
if (ble_mode == 0) {
|
|
port_set_saved_word(BLE_DISCOVERY_DATA_GUARD | (0x01 << 8));
|
|
}
|
|
// Wait for a while to allow for reset.
|
|
|
|
#ifdef CIRCUITPY_BOOT_BUTTON
|
|
digitalio_digitalinout_obj_t boot_button;
|
|
common_hal_digitalio_digitalinout_construct(&boot_button, CIRCUITPY_BOOT_BUTTON);
|
|
common_hal_digitalio_digitalinout_switch_to_input(&boot_button, PULL_UP);
|
|
#endif
|
|
#if CIRCUITPY_STATUS_LED
|
|
status_led_init();
|
|
#endif
|
|
uint64_t start_ticks = supervisor_ticks_ms64();
|
|
uint64_t diff = 0;
|
|
if (ble_mode != 0) {
|
|
#ifdef CIRCUITPY_STATUS_LED
|
|
new_status_color(0x0000ff);
|
|
#endif
|
|
common_hal_bleio_adapter_erase_bonding(&common_hal_bleio_adapter_obj);
|
|
boot_in_discovery_mode = true;
|
|
reset_state = 0x0;
|
|
}
|
|
#if !CIRCUITPY_USB
|
|
// Boot into discovery if USB isn't available and we aren't bonded already.
|
|
// Checking here allows us to have the status LED solidly on even if no button was
|
|
// pressed.
|
|
bool bonded = common_hal_bleio_adapter_is_bonded_to_central(&common_hal_bleio_adapter_obj);
|
|
if (!bonded) {
|
|
boot_in_discovery_mode = true;
|
|
}
|
|
#endif
|
|
while (diff < 1000) {
|
|
#ifdef CIRCUITPY_STATUS_LED
|
|
// Blink on for 50 and off for 100
|
|
bool led_on = boot_in_discovery_mode || (diff % 150) <= 50;
|
|
if (led_on) {
|
|
new_status_color(0x0000ff);
|
|
} else {
|
|
new_status_color(BLACK);
|
|
}
|
|
#endif
|
|
#ifdef CIRCUITPY_BOOT_BUTTON
|
|
if (!common_hal_digitalio_digitalinout_get_value(&boot_button)) {
|
|
boot_in_discovery_mode = true;
|
|
break;
|
|
}
|
|
#endif
|
|
diff = supervisor_ticks_ms64() - start_ticks;
|
|
}
|
|
#if CIRCUITPY_STATUS_LED
|
|
new_status_color(BLACK);
|
|
status_led_deinit();
|
|
#endif
|
|
port_set_saved_word(reset_state);
|
|
#endif
|
|
}
|
|
|
|
void supervisor_bluetooth_background(void) {
|
|
#if CIRCUITPY_BLE_FILE_SERVICE || CIRCUITPY_SERIAL_BLE
|
|
if (!ble_started) {
|
|
return;
|
|
}
|
|
bool is_connected = common_hal_bleio_adapter_get_connected(&common_hal_bleio_adapter_obj);
|
|
if (was_connected && !is_connected) {
|
|
#if CIRCUITPY_BLE_FILE_SERVICE
|
|
supervisor_bluetooth_file_transfer_disconnected();
|
|
#endif
|
|
}
|
|
was_connected = is_connected;
|
|
if (!is_connected) {
|
|
supervisor_bluetooth_start_advertising();
|
|
return;
|
|
}
|
|
|
|
#if CIRCUITPY_BLE_FILE_SERVICE
|
|
supervisor_bluetooth_file_transfer_background();
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
void supervisor_start_bluetooth(void) {
|
|
#if CIRCUITPY_BLE_FILE_SERVICE || CIRCUITPY_SERIAL_BLE
|
|
|
|
if (workflow_state != WORKFLOW_ENABLED) {
|
|
return;
|
|
}
|
|
|
|
common_hal_bleio_adapter_set_enabled(&common_hal_bleio_adapter_obj, true);
|
|
|
|
#if CIRCUITPY_BLE_FILE_SERVICE
|
|
supervisor_start_bluetooth_file_transfer();
|
|
#endif
|
|
|
|
#if CIRCUITPY_SERIAL_BLE
|
|
supervisor_start_bluetooth_serial();
|
|
#endif
|
|
|
|
// Mark as started so that the background call does something.
|
|
ble_started = true;
|
|
|
|
// Kick off advertisements
|
|
supervisor_bluetooth_background();
|
|
|
|
#endif
|
|
}
|
|
|
|
void supervisor_stop_bluetooth(void) {
|
|
#if CIRCUITPY_BLE_FILE_SERVICE || CIRCUITPY_SERIAL_BLE
|
|
|
|
if (!ble_started && workflow_state != WORKFLOW_ENABLED) {
|
|
return;
|
|
}
|
|
|
|
#if CIRCUITPY_SERIAL_BLE
|
|
supervisor_stop_bluetooth_serial();
|
|
#endif
|
|
|
|
#endif
|
|
}
|
|
|
|
void supervisor_bluetooth_enable_workflow(void) {
|
|
#if CIRCUITPY_BLE_FILE_SERVICE || CIRCUITPY_SERIAL_BLE
|
|
if (workflow_state == WORKFLOW_DISABLED) {
|
|
return;
|
|
}
|
|
|
|
workflow_state = WORKFLOW_ENABLED;
|
|
#endif
|
|
}
|
|
|
|
void supervisor_bluetooth_disable_workflow(void) {
|
|
#if CIRCUITPY_BLE_FILE_SERVICE || CIRCUITPY_SERIAL_BLE
|
|
workflow_state = WORKFLOW_DISABLED;
|
|
#endif
|
|
}
|