1 /* 2 * hci.h 3 * 4 * Created by Matthias Ringwald on 4/29/09. 5 * 6 */ 7 8 #pragma once 9 10 #include <stdint.h> 11 #include <stdlib.h> 12 13 #include "hci_transport.h" 14 15 16 // helper for BT little endian format 17 #define READ_BT_16( buffer, pos) (buffer[pos] | (buffer[pos+1] << 8)) 18 #define READ_BT_24( buffer, pos) ( ((uint32_t) buffer[pos]) | (((uint32_t)buffer[pos+1]) << 8) | (((uint32_t)buffer[pos+2]) << 16)) 19 #define READ_BT_32( buffer, pos) ( ((uint32_t) buffer[pos]) | (((uint32_t)buffer[pos+1]) << 8) | (((uint32_t)buffer[pos+2]) << 16) | (((uint32_t) buffer[pos+3])) << 24) 20 21 // #define STORE_BT_16( buffer, pos, value ) { buffer[pos] = (value) & 0xff; buffer[pos+1] = (value) >> 8; } 22 23 // packet headers 24 #define HCI_CMD_DATA_PKT_HDR 0x03 25 #define HCI_ACL_DATA_PKT_HDR 0x04 26 #define HCI_SCO_DATA_PKT_HDR 0x03 27 #define HCI_EVENT_PKT_HDR 0x02 28 29 /** 30 * @brief Length of a bluetooth device address. 31 */ 32 #define BD_ADDR_LEN 6 33 typedef uint8_t bd_addr_t[BD_ADDR_LEN]; 34 35 /** 36 * @brief The link key type 37 */ 38 #define LINK_KEY_LEN 16 39 typedef uint8_t link_key_t[LINK_KEY_LEN]; 40 41 /** 42 * @brief hci connection handle type 43 */ 44 typedef uint16_t hci_con_handle_t; 45 46 typedef enum { 47 HCI_POWER_OFF = 0, 48 HCI_POWER_ON 49 } HCI_POWER_MODE; 50 51 typedef struct { 52 uint16_t opcode; 53 const char *format; 54 } hci_cmd_t; 55 56 57 // set up HCI 58 void hci_init(hci_transport_t *transport, void *config); 59 60 // power control 61 int hci_power_control(HCI_POWER_MODE mode); 62 63 // run the hci daemon loop 64 void hci_run(); 65 66 // 67 void hexdump(uint8_t *data, int size); 68 69 // create and send hci command packet based on a template and a list of parameters 70 int hci_send_cmd(hci_cmd_t *cmd, ...); 71 72 // send ACL packet 73 int hci_send_acl_packet(uint8_t *packet, int size); 74 75 // helper 76 extern void bt_store_16(uint8_t *buffer, uint16_t pos, uint16_t value); 77 78 extern hci_cmd_t hci_inquiry; 79 extern hci_cmd_t hci_link_key_request_negative_reply; 80 extern hci_cmd_t hci_pin_code_request_reply; 81 extern hci_cmd_t hci_reset; 82 extern hci_cmd_t hci_create_connection; 83 extern hci_cmd_t hci_host_buffer_size; 84 extern hci_cmd_t hci_write_authentication_enable; 85 extern hci_cmd_t hci_write_page_timeout; 86 87 #define HCI_INQUIRY_LAP 0x9E8B33L // 0x9E8B33: General/Unlimited Inquiry Access Code (GIAC) 88