本篇文章介紹Bluetooth HID host的製作，修改BTstack hid_host_deco.c example code。
hid device(hid keyboard)使用前篇文章介紹，hid host接受hid device送來hid report顯示字元在tft display上，當按下F1鍵按鈕時清除tft display內容。
詳細製作過程請參閱「成果影片」。
詳細程式碼附於文章末尾。
- 成果影片
- 程式碼
- btstack_config.h
#ifndef _PICO_BTSTACK_BTSTACK_CONFIG_H #define _PICO_BTSTACK_BTSTACK_CONFIG_H // BTstack features that can be enabled #ifdef ENABLE_BLE #define ENABLE_LE_PERIPHERAL #define ENABLE_LE_CENTRAL #define ENABLE_L2CAP_LE_CREDIT_BASED_FLOW_CONTROL_MODE #endif #ifdef ENABLE_MESH // Mesh Config #define ENABLE_MESH_ADV_BEARER #define ENABLE_MESH_GATT_BEARER #define ENABLE_MESH_PB_ADV #define ENABLE_MESH_PB_GATT #define ENABLE_MESH_PROXY_SERVER #define ENABLE_MESH_RELAY #define ENABLE_MESH_PROVISIONER #define MAX_NR_MESH_SUBNETS 2 #define MAX_NR_MESH_TRANSPORT_KEYS 16 #define MAX_NR_MESH_VIRTUAL_ADDRESSES 16 // allow for one NetKey update #define MAX_NR_MESH_NETWORK_KEYS (MAX_NR_MESH_SUBNETS+1) #endif #define ENABLE_LOG_INFO #define ENABLE_LOG_ERROR #define ENABLE_PRINTF_HEXDUMP #define ENABLE_SCO_OVER_HCI // BTstack configuration. buffers, sizes, ... #define HCI_OUTGOING_PRE_BUFFER_SIZE 4 #define HCI_ACL_PAYLOAD_SIZE (1691 + 4) #define HCI_ACL_CHUNK_SIZE_ALIGNMENT 4 #define MAX_NR_AVDTP_CONNECTIONS 1 #define MAX_NR_AVDTP_STREAM_ENDPOINTS 1 #define MAX_NR_AVRCP_CONNECTIONS 2 #define MAX_NR_BNEP_CHANNELS 1 #define MAX_NR_BNEP_SERVICES 1 #define MAX_NR_BTSTACK_LINK_KEY_DB_MEMORY_ENTRIES 2 #define MAX_NR_GATT_CLIENTS 1 #define MAX_NR_HCI_CONNECTIONS 2 #define MAX_NR_HID_HOST_CONNECTIONS 1 #define MAX_NR_HIDS_CLIENTS 1 #define MAX_NR_HFP_CONNECTIONS 1 #define MAX_NR_L2CAP_CHANNELS 4 #define MAX_NR_L2CAP_SERVICES 3 #define MAX_NR_RFCOMM_CHANNELS 1 #define MAX_NR_RFCOMM_MULTIPLEXERS 1 #define MAX_NR_RFCOMM_SERVICES 1 #define MAX_NR_SERVICE_RECORD_ITEMS 4 #define MAX_NR_SM_LOOKUP_ENTRIES 3 #define MAX_NR_WHITELIST_ENTRIES 16 #define MAX_NR_LE_DEVICE_DB_ENTRIES 16 // Limit number of ACL/SCO Buffer to use by stack to avoid cyw43 shared bus overrun #define MAX_NR_CONTROLLER_ACL_BUFFERS 3 #define MAX_NR_CONTROLLER_SCO_PACKETS 3 // Enable and configure HCI Controller to Host Flow Control to avoid cyw43 shared bus overrun #define ENABLE_HCI_CONTROLLER_TO_HOST_FLOW_CONTROL #define HCI_HOST_ACL_PACKET_LEN 1024 #define HCI_HOST_ACL_PACKET_NUM 3 #define HCI_HOST_SCO_PACKET_LEN 120 #define HCI_HOST_SCO_PACKET_NUM 3 // Link Key DB and LE Device DB using TLV on top of Flash Sector interface #define NVM_NUM_DEVICE_DB_ENTRIES 16 #define NVM_NUM_LINK_KEYS 16 // We don't give btstack a malloc, so use a fixed-size ATT DB. #define MAX_ATT_DB_SIZE 512 // BTstack HAL configuration #define HAVE_EMBEDDED_TIME_MS // map btstack_assert onto Pico SDK assert() #define HAVE_ASSERT // Some USB dongles take longer to respond to HCI reset (e.g. BCM20702A). #define HCI_RESET_RESEND_TIMEOUT_MS 1000 #define ENABLE_SOFTWARE_AES128 #define ENABLE_MICRO_ECC_FOR_LE_SECURE_CONNECTIONS //#define HAVE_BTSTACK_STDIN // To get the audio demos working even with HCI dump at 115200, this truncates long ACL packets //#define HCI_DUMP_STDOUT_MAX_SIZE_ACL 100 #ifdef ENABLE_CLASSIC #define ENABLE_L2CAP_ENHANCED_RETRANSMISSION_MODE #endif #define HAVE_MALLOC #endif // _PICO_BTSTACK_BTSTACK_CONFIG_H
- CMakeLists.txt
# Generated Cmake Pico project file cmake_minimum_required(VERSION 3.13) set(CMAKE_C_STANDARD 11) set(CMAKE_CXX_STANDARD 17) # Initialise pico_sdk from installed location # (note this can come from environment, CMake cache etc) set(PICO_SDK_PATH "/home/duser/pico/pico-sdk") set(PICO_BOARD pico_w CACHE STRING "Board type") # Pull in Raspberry Pi Pico SDK (must be before project) include(pico_sdk_import.cmake) if (PICO_SDK_VERSION_STRING VERSION_LESS "1.4.0") message(FATAL_ERROR "Raspberry Pi Pico SDK version 1.4.0 (or later) required. Your version is ${PICO_SDK_VERSION_STRING}") endif() project(picow_hid_host C CXX ASM) # Initialise the Raspberry Pi Pico SDK pico_sdk_init() # Add executable. Default name is the project name, version 0.1 add_executable(picow_hid_host picow_hid_host.c hid_host_demo.c) pico_set_program_name(picow_hid_host "picow_hid_host") pico_set_program_version(picow_hid_host "0.1") pico_enable_stdio_uart(picow_hid_host 0) pico_enable_stdio_usb(picow_hid_host 1) # Add the standard library to the build target_link_libraries(picow_hid_host pico_stdlib pico_cyw43_arch_none pico_btstack_cyw43 pico_btstack_classic) # Add the standard include files to the build target_include_directories(picow_hid_host PRIVATE ${CMAKE_CURRENT_LIST_DIR} ${CMAKE_CURRENT_LIST_DIR}/.. # for our common lwipopts or any other standard includes, if required ) # add user library add_subdirectory(pico_tft) target_link_libraries(picow_hid_host pico_tft) pico_add_extra_outputs(picow_hid_host)
- picow_hid_host.c
#include <stdio.h> #include "pico/stdlib.h" #include "pico/cyw43_arch.h" #include "pico_tft.h" extern int btstack_main(int argc, const char * argv[]); int main() { stdio_init_all(); if (cyw43_arch_init()) { puts("cyw43 init error"); return 0; } tft_init(); btstack_main(0, NULL); while(1) { tight_loop_contents(); } return 0; }
- hid_host_demo.c(modified)
/* * Copyright (C) 2017 BlueKitchen GmbH * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the copyright holders nor the names of * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * 4. Any redistribution, use, or modification is done solely for * personal benefit and not for any commercial purpose or for * monetary gain. * * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN * GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * Please inquire about commercial licensing options at * contact@bluekitchen-gmbh.com * */ #define BTSTACK_FILE__ "hid_host_demo.c" /* * hid_host_demo.c */ /* EXAMPLE_START(hid_host_demo): HID Host Classic * * @text This example implements a HID Host. For now, it connects to a fixed device. * It will connect in Report protocol mode if this mode is supported by the HID Device, * otherwise it will fall back to BOOT protocol mode. */ #include <inttypes.h> #include <stdio.h> #include "btstack_config.h" #include "btstack.h" #define MAX_ATTRIBUTE_VALUE_SIZE 300 // HID device Bluetooth device address /* modify begin */ static const char * remote_addr_string = "28:CD:C1:01:XX:XX"; /* modify end */ /* ===add tft display begin===*/ #include "pico_tft.h" #include "tft_string.h" #include "fonts/font_fixedsys_mono_24.h" #define F1_KEY_SCAN_CODE 0x3a // F1 key scan code static uint8_t tft_x=0, tft_y=0; void tft_dislplay_clean() { tft_fill_rect(0,0, TFT_WIDTH, TFT_HEIGHT, 0xffff); tft_x=0; tft_y=0; } void tft_display(uint8_t ch) { uint8_t ch_str[2]; if (ch == '\n') { tft_x=0; tft_y+=25; } else { sprintf(ch_str, "%c", ch); tft_draw_string(tft_x, tft_y, ch_str, 0x001f, &font_fixedsys_mono_24); tft_x+=13; if (tft_x > TFT_WIDTH-13) { tft_y+=25; tft_x=0; } } if (tft_y > TFT_HEIGHT-25) tft_y=0; } /* ===add tft display end===*/ static bd_addr_t remote_addr; static btstack_packet_callback_registration_t hci_event_callback_registration; // Simplified US Keyboard with Shift modifier #define CHAR_ILLEGAL 0xff #define CHAR_RETURN '\n' #define CHAR_ESCAPE 27 #define CHAR_TAB '\t' #define CHAR_BACKSPACE 0x7f /** * English (US) */ static const uint8_t keytable_us_none [] = { CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 0-3 */ 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', /* 4-13 */ 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', /* 14-23 */ 'u', 'v', 'w', 'x', 'y', 'z', /* 24-29 */ '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', /* 30-39 */ CHAR_RETURN, CHAR_ESCAPE, CHAR_BACKSPACE, CHAR_TAB, ' ', /* 40-44 */ '-', '=', '[', ']', '\\', CHAR_ILLEGAL, ';', '\'', 0x60, ',', /* 45-54 */ '.', '/', CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 55-60 */ CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 61-64 */ CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 65-68 */ CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 69-72 */ CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 73-76 */ CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 77-80 */ CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 81-84 */ '*', '-', '+', '\n', '1', '2', '3', '4', '5', /* 85-97 */ '6', '7', '8', '9', '0', '.', 0xa7, /* 97-100 */ }; static const uint8_t keytable_us_shift[] = { CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 0-3 */ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', /* 4-13 */ 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', /* 14-23 */ 'U', 'V', 'W', 'X', 'Y', 'Z', /* 24-29 */ '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', /* 30-39 */ CHAR_RETURN, CHAR_ESCAPE, CHAR_BACKSPACE, CHAR_TAB, ' ', /* 40-44 */ '_', '+', '{', '}', '|', CHAR_ILLEGAL, ':', '"', 0x7E, '<', /* 45-54 */ '>', '?', CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 55-60 */ CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 61-64 */ CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 65-68 */ CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 69-72 */ CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 73-76 */ CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 77-80 */ CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, CHAR_ILLEGAL, /* 81-84 */ '*', '-', '+', '\n', '1', '2', '3', '4', '5', /* 85-97 */ '6', '7', '8', '9', '0', '.', 0xb1, /* 97-100 */ }; // SDP static uint8_t hid_descriptor_storage[MAX_ATTRIBUTE_VALUE_SIZE]; // App static enum { APP_IDLE, APP_CONNECTED } app_state = APP_IDLE; static uint16_t hid_host_cid = 0; static bool hid_host_descriptor_available = false; //static hid_protocol_mode_t hid_host_report_mode = HID_PROTOCOL_MODE_REPORT_WITH_FALLBACK_TO_BOOT; /* ===modify protocol begin=== */ static hid_protocol_mode_t hid_host_report_mode = HID_PROTOCOL_MODE_REPORT; //////////// /* ===modify protocol end=== */ /* @section Main application configuration * * @text In the application configuration, L2CAP and HID host are initialized, and the link policies * are set to allow sniff mode and role change. */ /* LISTING_START(PanuSetup): Panu setup */ static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); static void hid_host_setup(void){ // Initialize L2CAP l2cap_init(); #ifdef ENABLE_BLE // Initialize LE Security Manager. Needed for cross-transport key derivation sm_init(); #endif // Initialize HID Host hid_host_init(hid_descriptor_storage, sizeof(hid_descriptor_storage)); hid_host_register_packet_handler(packet_handler); // Allow sniff mode requests by HID device and support role switch gap_set_default_link_policy_settings(LM_LINK_POLICY_ENABLE_SNIFF_MODE | LM_LINK_POLICY_ENABLE_ROLE_SWITCH); // try to become master on incoming connections hci_set_master_slave_policy(HCI_ROLE_MASTER); // register for HCI events hci_event_callback_registration.callback = &packet_handler; hci_add_event_handler(&hci_event_callback_registration); // Disable stdout buffering /* uncomment */ //setvbuf(stdin, NULL, _IONBF, 0); } /* LISTING_END */ /* * @section HID Report Handler * * @text Use BTstack's compact HID Parser to process incoming HID Report in Report protocol mode. * Iterate over all fields and process fields with usage page = 0x07 / Keyboard * Check if SHIFT is down and process first character (don't handle multiple key presses) * */ #define NUM_KEYS 12 static uint8_t last_keys[NUM_KEYS]; static void hid_host_handle_interrupt_report(const uint8_t * report, uint16_t report_len){ // check if HID Input Report if (report_len < 1) return; if (*report != 0xa1) return; report++; report_len--; btstack_hid_parser_t parser; btstack_hid_parser_init(&parser, hid_descriptor_storage_get_descriptor_data(hid_host_cid), hid_descriptor_storage_get_descriptor_len(hid_host_cid), HID_REPORT_TYPE_INPUT, report, report_len); int shift = 0; uint8_t new_keys[NUM_KEYS]; memset(new_keys, 0, sizeof(new_keys)); int new_keys_count = 0; while (btstack_hid_parser_has_more(&parser)){ uint16_t usage_page; uint16_t usage; int32_t value; btstack_hid_parser_get_field(&parser, &usage_page, &usage, &value); if (usage_page != 0x07) continue; switch (usage){ case 0xe1: case 0xe6: if (value){ shift = 1; } continue; case 0x00: continue; default: break; } if (usage >= sizeof(keytable_us_none)) continue; // store new keys new_keys[new_keys_count++] = (uint8_t) usage; // check if usage was used last time (and ignore in that case) int i; for (i=0;i<NUM_KEYS;i++){ if (usage == last_keys[i]){ usage = 0; } } if (usage == 0) continue; uint8_t key; /* ===check F1_KEY====*/ if (usage == F1_KEY_SCAN_CODE) { tft_dislplay_clean(); continue; } /* ===check F1_KEY====*/ if (shift){ key = keytable_us_shift[usage]; } else { key = keytable_us_none[usage]; } if (key == CHAR_ILLEGAL) continue; if (key == CHAR_BACKSPACE){ printf("\b \b"); // go back one char, print space, go back one char again continue; } printf("%c", key); /* === modify for our Application begin===*/ tft_display(key); /* === modify for our Application end===*/ } memcpy(last_keys, new_keys, NUM_KEYS); } /* * @section Packet Handler * * @text The packet handler responds to various HID events. */ /* LISTING_START(packetHandler): Packet Handler */ static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size) { /* LISTING_PAUSE */ UNUSED(channel); UNUSED(size); uint8_t event; bd_addr_t event_addr; uint8_t status; /* LISTING_RESUME */ switch (packet_type) { case HCI_EVENT_PACKET: event = hci_event_packet_get_type(packet); switch (event) { #ifndef HAVE_BTSTACK_STDIN /* @text When BTSTACK_EVENT_STATE with state HCI_STATE_WORKING * is received and the example is started in client mode, the remote SDP HID query is started. */ case BTSTACK_EVENT_STATE: if (btstack_event_state_get_state(packet) == HCI_STATE_WORKING){ status = hid_host_connect(remote_addr, hid_host_report_mode, &hid_host_cid); if (status != ERROR_CODE_SUCCESS){ printf("HID host connect failed, status 0x%02x.\n", status); } } break; #endif /* LISTING_PAUSE */ case HCI_EVENT_PIN_CODE_REQUEST: // inform about pin code request printf("Pin code request - using '0000'\n"); hci_event_pin_code_request_get_bd_addr(packet, event_addr); gap_pin_code_response(event_addr, "0000"); break; case HCI_EVENT_USER_CONFIRMATION_REQUEST: // inform about user confirmation request printf("SSP User Confirmation Request with numeric value '%"PRIu32"'\n", little_endian_read_32(packet, 8)); printf("SSP User Confirmation Auto accept\n"); break; /* LISTING_RESUME */ case HCI_EVENT_HID_META: switch (hci_event_hid_meta_get_subevent_code(packet)){ case HID_SUBEVENT_INCOMING_CONNECTION: // There is an incoming connection: we can accept it or decline it. // The hid_host_report_mode in the hid_host_accept_connection function // allows the application to request a protocol mode. // For available protocol modes, see hid_protocol_mode_t in btstack_hid.h file. hid_host_accept_connection(hid_subevent_incoming_connection_get_hid_cid(packet), hid_host_report_mode); break; case HID_SUBEVENT_CONNECTION_OPENED: // The status field of this event indicates if the control and interrupt // connections were opened successfully. status = hid_subevent_connection_opened_get_status(packet); if (status != ERROR_CODE_SUCCESS) { printf("Connection failed, status 0x%02x\n", status); app_state = APP_IDLE; hid_host_cid = 0; return; } app_state = APP_CONNECTED; hid_host_descriptor_available = false; hid_host_cid = hid_subevent_connection_opened_get_hid_cid(packet); printf("HID Host connected.\n"); break; case HID_SUBEVENT_DESCRIPTOR_AVAILABLE: // This event will follows HID_SUBEVENT_CONNECTION_OPENED event. // For incoming connections, i.e. HID Device initiating the connection, // the HID_SUBEVENT_DESCRIPTOR_AVAILABLE is delayed, and some HID // reports may be received via HID_SUBEVENT_REPORT event. It is up to // the application if these reports should be buffered or ignored until // the HID descriptor is available. status = hid_subevent_descriptor_available_get_status(packet); if (status == ERROR_CODE_SUCCESS){ hid_host_descriptor_available = true; printf("HID Descriptor available, please start typing.\n"); tft_dislplay_clean(); } else { printf("Cannot handle input report, HID Descriptor is not available, status 0x%02x\n", status); } break; case HID_SUBEVENT_REPORT: // Handle input report. if (hid_host_descriptor_available){ hid_host_handle_interrupt_report(hid_subevent_report_get_report(packet), hid_subevent_report_get_report_len(packet)); } else { printf_hexdump(hid_subevent_report_get_report(packet), hid_subevent_report_get_report_len(packet)); } break; case HID_SUBEVENT_SET_PROTOCOL_RESPONSE: // For incoming connections, the library will set the protocol mode of the // HID Device as requested in the call to hid_host_accept_connection. The event // reports the result. For connections initiated by calling hid_host_connect, // this event will occur only if the established report mode is boot mode. status = hid_subevent_set_protocol_response_get_handshake_status(packet); if (status != HID_HANDSHAKE_PARAM_TYPE_SUCCESSFUL){ printf("Error set protocol, status 0x%02x\n", status); break; } switch ((hid_protocol_mode_t)hid_subevent_set_protocol_response_get_protocol_mode(packet)){ case HID_PROTOCOL_MODE_BOOT: printf("Protocol mode set: BOOT.\n"); break; case HID_PROTOCOL_MODE_REPORT: printf("Protocol mode set: REPORT.\n"); break; default: printf("Unknown protocol mode.\n"); break; } break; case HID_SUBEVENT_CONNECTION_CLOSED: // The connection was closed. hid_host_cid = 0; hid_host_descriptor_available = false; printf("HID Host disconnected.\n"); break; default: break; } break; default: break; } break; default: break; } } /* LISTING_END */ #ifdef HAVE_BTSTACK_STDIN static void show_usage(void){ bd_addr_t iut_address; gap_local_bd_addr(iut_address); printf("\n--- Bluetooth HID Host Console %s ---\n", bd_addr_to_str(iut_address)); printf("c - Connect to %s in report mode, with fallback to boot mode.\n", remote_addr_string); printf("C - Disconnect\n"); printf("\n"); printf("Ctrl-c - exit\n"); printf("---\n"); } static void stdin_process(char cmd){ uint8_t status = ERROR_CODE_SUCCESS; switch (cmd){ case 'c': printf("Connect to %s in report mode, with fallback to boot mode.\n", remote_addr_string); status = hid_host_connect(remote_addr, hid_host_report_mode, &hid_host_cid); break; case 'C': printf("Disconnect...\n"); hid_host_disconnect(hid_host_cid); break; case '\n': case '\r': break; default: show_usage(); break; } if (status != ERROR_CODE_SUCCESS){ printf("HID host cmd \'%c\' failed, status 0x%02x\n", cmd, status); } } #endif int btstack_main(int argc, const char * argv[]); int btstack_main(int argc, const char * argv[]){ (void)argc; (void)argv; hid_host_setup(); // parse human readable Bluetooth address sscanf_bd_addr(remote_addr_string, remote_addr); #ifdef HAVE_BTSTACK_STDIN btstack_stdin_setup(stdin_process); #endif // Turn on the device hci_power_control(HCI_POWER_ON); return 0; } /* EXAMPLE_END */
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