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Scanner working, but not very first time

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This commit is contained in:
Dan Halbert 2019-05-23 16:07:54 -04:00
parent b71f6c97ce
commit 1639354e5f
5 changed files with 56 additions and 105 deletions
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5
ports/nrf/bluetooth/ble_drv.h
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@ -30,10 +30,6 @@
#include "ble.h"
#if (BLUETOOTH_SD == 132) && (BLE_API_VERSION == 2)
#define NRF52
#endif
#define MAX_TX_IN_PROGRESS 10
#ifndef BLE_GATT_ATT_MTU_DEFAULT
@ -43,6 +39,7 @@
#define BLE_CONN_CFG_TAG_CUSTOM 1
#define MSEC_TO_UNITS(TIME, RESOLUTION) (((TIME) * 1000) / (RESOLUTION))
#define SEC_TO_UNITS(TIME, RESOLUTION) (((TIME) * 1000000) / (RESOLUTION))
// 0.625 msecs (625 usecs)
#define ADV_INTERVAL_UNIT_FLOAT_SECS (0.000625)
#define UNIT_0_625_MS (625)

26
ports/nrf/common-hal/bleio/Scanner.c
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@ -36,14 +36,12 @@
#include "shared-bindings/bleio/Scanner.h"
#include "shared-module/bleio/ScanEntry.h"
#if (BLUETOOTH_SD == 140)
static uint8_t m_scan_buffer_data[BLE_GAP_SCAN_BUFFER_MIN];
static ble_data_t m_scan_buffer = {
m_scan_buffer_data,
BLE_GAP_SCAN_BUFFER_MIN
};
#endif
STATIC void on_ble_evt(ble_evt_t *ble_evt, void *scanner_in) {
bleio_scanner_obj_t *scanner = (bleio_scanner_obj_t*)scanner_in;
@ -61,48 +59,34 @@ STATIC void on_ble_evt(ble_evt_t *ble_evt, void *scanner_in) {
entry->address.type = report->peer_addr.addr_type;
memcpy(entry->address.value, report->peer_addr.addr, BLEIO_ADDRESS_BYTES);
#if (BLUETOOTH_SD == 140)
entry->data = mp_obj_new_bytearray(report->data.len, report->data.p_data);
#else
entry->data = mp_obj_new_bytearray(report->dlen, report->data);
#endif
mp_obj_list_append(scanner->adv_reports, entry);
#if (BLUETOOTH_SD == 140)
const uint32_t err_code = sd_ble_gap_scan_start(NULL, &m_scan_buffer);
if (err_code != NRF_SUCCESS) {
mp_raise_OSError_msg_varg(translate("Failed to continue scanning, err 0x%04x"), err_code);
}
#endif
}
void common_hal_bleio_scanner_scan(bleio_scanner_obj_t *self, mp_int_t timeout) {
void common_hal_bleio_scanner_scan(bleio_scanner_obj_t *self, mp_float_t timeout, mp_float_t interval, mp_float_t window) {
ble_drv_add_event_handler(on_ble_evt, self);
ble_gap_scan_params_t scan_params = {
.interval = MSEC_TO_UNITS(self->interval, UNIT_0_625_MS),
.window = MSEC_TO_UNITS(self->window, UNIT_0_625_MS),
#if (BLUETOOTH_SD == 140)
.interval = SEC_TO_UNITS(interval, UNIT_0_625_MS),
.window = SEC_TO_UNITS(window, UNIT_0_625_MS),
.scan_phys = BLE_GAP_PHY_1MBPS,
#endif
};
common_hal_bleio_adapter_set_enabled(true);
uint32_t err_code;
#if (BLUETOOTH_SD == 140)
err_code = sd_ble_gap_scan_start(&scan_params, &m_scan_buffer);
#else
err_code = sd_ble_gap_scan_start(&scan_params);
#endif
if (err_code != NRF_SUCCESS) {
mp_raise_OSError_msg_varg(translate("Failed to start scanning, err 0x%04x"), err_code);
}
if (timeout > 0) {
mp_hal_delay_ms(timeout);
sd_ble_gap_scan_stop();
}
mp_hal_delay_ms(timeout * 1000);
sd_ble_gap_scan_stop();
}

120
shared-bindings/bleio/Scanner.c
View File

@ -30,8 +30,12 @@
#include "shared-bindings/bleio/ScanEntry.h"
#include "shared-bindings/bleio/Scanner.h"
#define DEFAULT_INTERVAL 100
#define DEFAULT_WINDOW 100
#define INTERVAL_DEFAULT (0.1f)
#define INTERVAL_MIN (0.0025f)
#define INTERVAL_MIN_STRING "0.0025"
#define INTERVAL_MAX (40.959375f)
#define INTERVAL_MAX_STRING "40.959375"
#define WINDOW_DEFAULT (0.1f)
//| .. currentmodule:: bleio
//|
@ -45,109 +49,76 @@
//| import bleio
//| scanner = bleio.Scanner()
//| entries = scanner.scan(2.5) # Scan for 2.5 seconds
//| print(entries)
//|
//| .. class:: Scanner()
//|
//| Create a new Scanner object.
//|
//| .. attribute:: interval
//|
//| The interval (in seconds) between the start of two consecutive scan windows.
//| Allowed values are between 0.010 and 10.24 sec.
//|
//| .. attribute:: window
//|
//| The duration (in seconds) in which a single BLE channel is scanned.
//| Allowed values are between 0.010 and 10.24 sec.
//|
//| .. method:: scan(timeout)
//|
//| Performs a BLE scan.
//|
//| :param float timeout: the scan timeout in seconds
//| :returns: advertising packets found
//| :rtype: list of :py:class:`bleio.ScanEntry`
//|
STATIC mp_obj_t bleio_scanner_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *all_args, mp_map_t *kw_args) {
mp_arg_check_num(n_args, kw_args, 0, 0, false);
bleio_scanner_obj_t *self = m_new_obj(bleio_scanner_obj_t);
self->base.type = type;
self->interval = DEFAULT_INTERVAL;
self->window = DEFAULT_WINDOW;
return MP_OBJ_FROM_PTR(self);
}
STATIC mp_obj_t bleio_scanner_get_interval(mp_obj_t self_in) {
bleio_scanner_obj_t *self = MP_OBJ_TO_PTR(self_in);
//| .. method:: scan(timeout, \*, interval=0.1, window=0.1)
//|
//| Performs a BLE scan.
//|
//| :param float timeout: the scan timeout in seconds
//| :param float interval: the interval (in seconds) between the start of two consecutive scan windows
//| Must be in the range 0.0025 - 40.959375 seconds.
//| :param float window: the duration (in seconds) to scan a single BLE channel
//| `window` must be <= `interval`.
//| :returns: advertising packets found
//| :rtype: list of :py:class:`bleio.ScanEntry`
//|
STATIC mp_obj_t bleio_scanner_scan(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_timeout, ARG_interval, ARG_window };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_timeout, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_interval, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_obj = MP_OBJ_NULL} },
{ MP_QSTR_window, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_obj = MP_OBJ_NULL} },
};
return mp_obj_new_int(self->interval);
}
MP_DEFINE_CONST_FUN_OBJ_1(bleio_scanner_get_interval_obj, bleio_scanner_get_interval);
bleio_scanner_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
static mp_obj_t bleio_scanner_set_interval(mp_obj_t self_in, mp_obj_t value) {
bleio_scanner_obj_t *self = MP_OBJ_TO_PTR(self_in);
const mp_float_t timeout = mp_obj_get_float(args[ARG_timeout].u_obj);
self->interval = mp_obj_get_int(value);
if (args[ARG_interval].u_obj == MP_OBJ_NULL) {
args[ARG_interval].u_obj = mp_obj_new_float(INTERVAL_DEFAULT);
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(bleio_scanner_set_interval_obj, bleio_scanner_set_interval);
if (args[ARG_window].u_obj == MP_OBJ_NULL) {
args[ARG_window].u_obj = mp_obj_new_float(WINDOW_DEFAULT);
}
const mp_obj_property_t bleio_scanner_interval_obj = {
.base.type = &mp_type_property,
.proxy = { (mp_obj_t)&bleio_scanner_get_interval_obj,
(mp_obj_t)&bleio_scanner_set_interval_obj,
(mp_obj_t)&mp_const_none_obj },
};
const mp_float_t interval = mp_obj_float_get(args[ARG_interval].u_obj);
if (interval < INTERVAL_MIN || interval > INTERVAL_MAX) {
mp_raise_ValueError_varg(translate("interval must be in range %s-%s"), INTERVAL_MIN_STRING, INTERVAL_MAX_STRING);
}
STATIC mp_obj_t scanner_scan(mp_obj_t self_in, mp_obj_t timeout_in) {
bleio_scanner_obj_t *self = MP_OBJ_TO_PTR(self_in);
const mp_int_t timeout = mp_obj_get_int(timeout_in);
const mp_float_t window = mp_obj_float_get(args[ARG_window].u_obj);
if (window > interval) {
mp_raise_ValueError(translate("window must be <= interval"));
}
self->adv_reports = mp_obj_new_list(0, NULL);
common_hal_bleio_scanner_scan(self, timeout);
common_hal_bleio_scanner_scan(self, timeout, interval, window);
return self->adv_reports;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(bleio_scanner_scan_obj, scanner_scan);
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(bleio_scanner_scan_obj, 2, bleio_scanner_scan);
STATIC mp_obj_t bleio_scanner_get_window(mp_obj_t self_in) {
bleio_scanner_obj_t *self = MP_OBJ_TO_PTR(self_in);
return mp_obj_new_int(self->window);
}
MP_DEFINE_CONST_FUN_OBJ_1(bleio_scanner_get_window_obj, bleio_scanner_get_window);
static mp_obj_t bleio_scanner_set_window(mp_obj_t self_in, mp_obj_t value) {
bleio_scanner_obj_t *self = MP_OBJ_TO_PTR(self_in);
self->window = mp_obj_get_int(value);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(bleio_scanner_set_window_obj, bleio_scanner_set_window);
const mp_obj_property_t bleio_scanner_window_obj = {
.base.type = &mp_type_property,
.proxy = { (mp_obj_t)&bleio_scanner_get_window_obj,
(mp_obj_t)&bleio_scanner_set_window_obj,
(mp_obj_t)&mp_const_none_obj },
};
STATIC const mp_rom_map_elem_t bleio_scanner_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_interval), MP_ROM_PTR(&bleio_scanner_interval_obj) },
{ MP_ROM_QSTR(MP_QSTR_scan), MP_ROM_PTR(&bleio_scanner_scan_obj) },
{ MP_ROM_QSTR(MP_QSTR_window), MP_ROM_PTR(&bleio_scanner_window_obj) },
};
STATIC MP_DEFINE_CONST_DICT(bleio_scanner_locals_dict, bleio_scanner_locals_dict_table);
@ -155,7 +126,6 @@ STATIC MP_DEFINE_CONST_DICT(bleio_scanner_locals_dict, bleio_scanner_locals_dict
const mp_obj_type_t bleio_scanner_type = {
{ &mp_type_type },
.name = MP_QSTR_Scanner,
.print = bleio_scanner_print,
.make_new = bleio_scanner_make_new,
.locals_dict = (mp_obj_dict_t*)&bleio_scanner_locals_dict
};

2
shared-bindings/bleio/Scanner.h
View File

@ -33,7 +33,7 @@
extern const mp_obj_type_t bleio_scanner_type;
extern void common_hal_bleio_scanner_scan(bleio_scanner_obj_t *self, mp_int_t timeout);
void common_hal_bleio_scanner_scan(bleio_scanner_obj_t *self, mp_float_t timeout, mp_float_t interval, mp_float_t window);
extern void common_hal_bleio_scanner_stop(bleio_scanner_obj_t *self);
#endif // MICROPY_INCLUDED_SHARED_BINDINGS_BLEIO_SCANNER_H

8
shared-bindings/bleio/__init__.c
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@ -64,8 +64,8 @@
// Descriptor
// Device
//| Peripheral
// ScanEntry
// Scanner
//| ScanEntry
//| Scanner
//| Service
//| UUID
//|
@ -86,8 +86,8 @@ STATIC const mp_rom_map_elem_t bleio_module_globals_table[] = {
// { MP_ROM_QSTR(MP_QSTR_Descriptor), MP_ROM_PTR(&bleio_descriptor_type) },
{ MP_ROM_QSTR(MP_QSTR_Peripheral), MP_ROM_PTR(&bleio_peripheral_type) },
// Hide work-in-progress.
// { MP_ROM_QSTR(MP_QSTR_ScanEntry), MP_ROM_PTR(&bleio_scanentry_type) },
// { MP_ROM_QSTR(MP_QSTR_Scanner), MP_ROM_PTR(&bleio_scanner_type) },
{ MP_ROM_QSTR(MP_QSTR_ScanEntry), MP_ROM_PTR(&bleio_scanentry_type) },
{ MP_ROM_QSTR(MP_QSTR_Scanner), MP_ROM_PTR(&bleio_scanner_type) },
{ MP_ROM_QSTR(MP_QSTR_Service), MP_ROM_PTR(&bleio_service_type) },
{ MP_ROM_QSTR(MP_QSTR_UUID), MP_ROM_PTR(&bleio_uuid_type) },