/******************************************************************************
*
* Copyright (C) 2009-2012 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/*******************************************************************************
*
* Filename: btif_hh.c
*
* Description: HID Host Profile Bluetooth Interface
*
*
******************************************************************************/
#define LOG_TAG "bt_btif_hh"
#include "btif_hh.h"
#include <base/logging.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "bt_common.h"
#include "bta_api.h"
#include "btif_common.h"
#include "btif_storage.h"
#include "btif_util.h"
#include "l2c_api.h"
#include "osi/include/log.h"
#include "osi/include/osi.h"
#define BTIF_HH_APP_ID_MI 0x01
#define BTIF_HH_APP_ID_KB 0x02
#define COD_HID_KEYBOARD 0x0540
#define COD_HID_POINTING 0x0580
#define COD_HID_COMBO 0x05C0
#define KEYSTATE_FILEPATH \
"/data/misc/bluedroid/bt_hh_ks" // keep this in sync with HID host jni
#define HID_REPORT_CAPSLOCK 0x39
#define HID_REPORT_NUMLOCK 0x53
#define HID_REPORT_SCROLLLOCK 0x47
// For Apple Magic Mouse
#define MAGICMOUSE_VENDOR_ID 0x05ac
#define MAGICMOUSE_PRODUCT_ID 0x030d
#define LOGITECH_KB_MX5500_VENDOR_ID 0x046D
#define LOGITECH_KB_MX5500_PRODUCT_ID 0xB30B
extern fixed_queue_t* btu_general_alarm_queue;
extern const int BT_UID;
extern const int BT_GID;
static int btif_hh_keylockstates = 0; // The current key state of each key
#define BTIF_HH_ID_1 0
#define BTIF_HH_DEV_DISCONNECTED 3
#define BTIF_TIMEOUT_VUP_MS (3 * 1000)
#ifndef BTUI_HH_SECURITY
#define BTUI_HH_SECURITY (BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT)
#endif
#ifndef BTUI_HH_MOUSE_SECURITY
#define BTUI_HH_MOUSE_SECURITY (BTA_SEC_NONE)
#endif
/* HH request events */
typedef enum {
BTIF_HH_CONNECT_REQ_EVT = 0,
BTIF_HH_DISCONNECT_REQ_EVT,
BTIF_HH_VUP_REQ_EVT
} btif_hh_req_evt_t;
/*******************************************************************************
* Constants & Macros
******************************************************************************/
#define BTIF_HH_SERVICES (BTA_HID_SERVICE_MASK)
/*******************************************************************************
* Local type definitions
******************************************************************************/
typedef struct hid_kb_list {
uint16_t product_id;
uint16_t version_id;
const char* kb_name;
} tHID_KB_LIST;
/*******************************************************************************
* Static variables
******************************************************************************/
btif_hh_cb_t btif_hh_cb;
static bthh_callbacks_t* bt_hh_callbacks = NULL;
/* List of HID keyboards for which the NUMLOCK state needs to be
* turned ON by default. Add devices to this list to apply the
* NUMLOCK state toggle on fpr first connect.*/
static tHID_KB_LIST hid_kb_numlock_on_list[] = {{LOGITECH_KB_MX5500_PRODUCT_ID,
LOGITECH_KB_MX5500_VENDOR_ID,
"Logitech MX5500 Keyboard"}};
#define CHECK_BTHH_INIT() \
do { \
if (bt_hh_callbacks == NULL) { \
BTIF_TRACE_WARNING("BTHH: %s: BTHH not initialized", __func__); \
return BT_STATUS_NOT_READY; \
} \
} while (0)
/*******************************************************************************
* Static functions
******************************************************************************/
/*******************************************************************************
* Externs
******************************************************************************/
extern void bta_hh_co_destroy(int fd);
extern void bta_hh_co_write(int fd, uint8_t* rpt, uint16_t len);
extern bt_status_t btif_dm_remove_bond(const bt_bdaddr_t* bd_addr);
extern void bta_hh_co_send_hid_info(btif_hh_device_t* p_dev,
const char* dev_name, uint16_t vendor_id,
uint16_t product_id, uint16_t version,
uint8_t ctry_code, int dscp_len,
uint8_t* p_dscp);
extern bool check_cod(const bt_bdaddr_t* remote_bdaddr, uint32_t cod);
extern void btif_dm_cb_remove_bond(bt_bdaddr_t* bd_addr);
extern bool check_cod_hid(const bt_bdaddr_t* remote_bdaddr);
extern int scru_ascii_2_hex(char* p_ascii, int len, uint8_t* p_hex);
extern void btif_dm_hh_open_failed(bt_bdaddr_t* bdaddr);
extern void btif_hd_service_registration();
/*****************************************************************************
* Local Function prototypes
****************************************************************************/
static void set_keylockstate(int keymask, bool isSet);
static void toggle_os_keylockstates(int fd, int changedkeystates);
static void sync_lockstate_on_connect(btif_hh_device_t* p_dev);
// static void hh_update_keyboard_lockstates(btif_hh_device_t *p_dev);
void btif_hh_timer_timeout(void* data);
void bte_hh_evt(tBTA_HH_EVT event, tBTA_HH* p_data);
/*******************************************************************************
* Functions
******************************************************************************/
static int get_keylockstates() { return btif_hh_keylockstates; }
static void set_keylockstate(int keymask, bool isSet) {
if (isSet) btif_hh_keylockstates |= keymask;
}
/*******************************************************************************
*
* Function toggle_os_keylockstates
*
* Description Function to toggle the keyboard lock states managed by the
linux.
* This function is used in by two call paths
* (1) if the lock state change occurred from an onscreen
keyboard,
* this function is called to update the lock state maintained
for the HID keyboard(s)
* (2) if a HID keyboard is disconnected and reconnected,
* this function is called to update the lock state maintained
for the HID keyboard(s)
* Returns void
******************************************************************************/
static void toggle_os_keylockstates(int fd, int changedlockstates) {
BTIF_TRACE_EVENT("%s: fd = %d, changedlockstates = 0x%x", __func__, fd,
changedlockstates);
uint8_t hidreport[9];
int reportIndex;
memset(hidreport, 0, 9);
hidreport[0] = 1;
reportIndex = 4;
if (changedlockstates & BTIF_HH_KEYSTATE_MASK_CAPSLOCK) {
BTIF_TRACE_DEBUG("%s Setting CAPSLOCK", __func__);
hidreport[reportIndex++] = (uint8_t)HID_REPORT_CAPSLOCK;
}
if (changedlockstates & BTIF_HH_KEYSTATE_MASK_NUMLOCK) {
BTIF_TRACE_DEBUG("%s Setting NUMLOCK", __func__);
hidreport[reportIndex++] = (uint8_t)HID_REPORT_NUMLOCK;
}
if (changedlockstates & BTIF_HH_KEYSTATE_MASK_SCROLLLOCK) {
BTIF_TRACE_DEBUG("%s Setting SCROLLLOCK", __func__);
hidreport[reportIndex++] = (uint8_t)HID_REPORT_SCROLLLOCK;
}
BTIF_TRACE_DEBUG(
"Writing hidreport #1 to os: "
"%s: %x %x %x",
__func__, hidreport[0], hidreport[1], hidreport[2]);
BTIF_TRACE_DEBUG("%s: %x %x %x", __func__, hidreport[3], hidreport[4],
hidreport[5]);
BTIF_TRACE_DEBUG("%s: %x %x %x", __func__, hidreport[6], hidreport[7],
hidreport[8]);
bta_hh_co_write(fd, hidreport, sizeof(hidreport));
usleep(200000);
memset(hidreport, 0, 9);
hidreport[0] = 1;
BTIF_TRACE_DEBUG(
"Writing hidreport #2 to os: "
"%s: %x %x %x",
__func__, hidreport[0], hidreport[1], hidreport[2]);
BTIF_TRACE_DEBUG("%s: %x %x %x", __func__, hidreport[3], hidreport[4],
hidreport[5]);
BTIF_TRACE_DEBUG("%s: %x %x %x ", __func__, hidreport[6], hidreport[7],
hidreport[8]);
bta_hh_co_write(fd, hidreport, sizeof(hidreport));
}
/*******************************************************************************
*
* Function create_pbuf
*
* Description Helper function to create p_buf for send_data or set_report
*
******************************************************************************/
static BT_HDR* create_pbuf(uint16_t len, uint8_t* data) {
BT_HDR* p_buf = (BT_HDR*)osi_malloc(len + BTA_HH_MIN_OFFSET + sizeof(BT_HDR));
uint8_t* pbuf_data;
p_buf->len = len;
p_buf->offset = BTA_HH_MIN_OFFSET;
pbuf_data = (uint8_t*)(p_buf + 1) + p_buf->offset;
memcpy(pbuf_data, data, len);
return p_buf;
}
/*******************************************************************************
*
* Function update_keyboard_lockstates
*
* Description Sends a report to the keyboard to set the lock states of
* keys.
*
******************************************************************************/
static void update_keyboard_lockstates(btif_hh_device_t* p_dev) {
uint8_t len = 2; /* reportid + 1 byte report*/
BD_ADDR* bda;
BT_HDR* p_buf;
uint8_t data[] = {0x01, /* report id */
static_cast<uint8_t>(btif_hh_keylockstates)}; /* keystate */
/* Set report for other keyboards */
BTIF_TRACE_EVENT("%s: setting report on dev_handle %d to 0x%x", __func__,
p_dev->dev_handle, btif_hh_keylockstates);
/* Get SetReport buffer */
p_buf = create_pbuf(len, data);
if (p_buf != NULL) {
p_buf->layer_specific = BTA_HH_RPTT_OUTPUT;
bda = (BD_ADDR*)(&p_dev->bd_addr);
BTA_HhSendData(p_dev->dev_handle, *bda, p_buf);
}
}
/*******************************************************************************
*
* Function sync_lockstate_on_connect
*
* Description Function to update the keyboard lock states managed by the
* OS when a HID keyboard is connected or disconnected and
* reconnected
*
* Returns void
******************************************************************************/
static void sync_lockstate_on_connect(btif_hh_device_t* p_dev) {
int keylockstates;
BTIF_TRACE_EVENT(
"%s: Syncing keyboard lock states after "
"reconnect...",
__func__);
/*If the device is connected, update keyboard state */
update_keyboard_lockstates(p_dev);
/*Check if the lockstate of caps,scroll,num is set.
If so, send a report to the kernel
so the lockstate is in sync */
keylockstates = get_keylockstates();
if (keylockstates) {
BTIF_TRACE_DEBUG(
"%s: Sending hid report to kernel "
"indicating lock key state 0x%x",
__func__, keylockstates);
usleep(200000);
toggle_os_keylockstates(p_dev->fd, keylockstates);
} else {
BTIF_TRACE_DEBUG(
"%s: NOT sending hid report to kernel "
"indicating lock key state 0x%x",
__func__, keylockstates);
}
}
/*******************************************************************************
*
* Function btif_hh_find_connected_dev_by_handle
*
* Description Return the connected device pointer of the specified device
* handle
*
* Returns Device entry pointer in the device table
******************************************************************************/
btif_hh_device_t* btif_hh_find_connected_dev_by_handle(uint8_t handle) {
uint32_t i;
for (i = 0; i < BTIF_HH_MAX_HID; i++) {
if (btif_hh_cb.devices[i].dev_status == BTHH_CONN_STATE_CONNECTED &&
btif_hh_cb.devices[i].dev_handle == handle) {
return &btif_hh_cb.devices[i];
}
}
return NULL;
}
/*******************************************************************************
*
* Function btif_hh_find_dev_by_bda
*
* Description Return the device pointer of the specified bt_bdaddr_t.
*
* Returns Device entry pointer in the device table
******************************************************************************/
static btif_hh_device_t* btif_hh_find_dev_by_bda(bt_bdaddr_t* bd_addr) {
uint32_t i;
for (i = 0; i < BTIF_HH_MAX_HID; i++) {
if (btif_hh_cb.devices[i].dev_status != BTHH_CONN_STATE_UNKNOWN &&
memcmp(&(btif_hh_cb.devices[i].bd_addr), bd_addr, BD_ADDR_LEN) == 0) {
return &btif_hh_cb.devices[i];
}
}
return NULL;
}
/*******************************************************************************
*
* Function btif_hh_find_connected_dev_by_bda
*
* Description Return the connected device pointer of the specified
* bt_bdaddr_t.
*
* Returns Device entry pointer in the device table
******************************************************************************/
static btif_hh_device_t* btif_hh_find_connected_dev_by_bda(
bt_bdaddr_t* bd_addr) {
uint32_t i;
for (i = 0; i < BTIF_HH_MAX_HID; i++) {
if (btif_hh_cb.devices[i].dev_status == BTHH_CONN_STATE_CONNECTED &&
memcmp(&(btif_hh_cb.devices[i].bd_addr), bd_addr, BD_ADDR_LEN) == 0) {
return &btif_hh_cb.devices[i];
}
}
return NULL;
}
/*******************************************************************************
*
* Function btif_hh_stop_vup_timer
*
* Description stop vitual unplug timer
*
* Returns void
******************************************************************************/
void btif_hh_stop_vup_timer(bt_bdaddr_t* bd_addr) {
btif_hh_device_t* p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
if (p_dev != NULL) {
BTIF_TRACE_DEBUG("stop VUP timer");
alarm_free(p_dev->vup_timer);
p_dev->vup_timer = NULL;
}
}
/*******************************************************************************
*
* Function btif_hh_start_vup_timer
*
* Description start virtual unplug timer
*
* Returns void
******************************************************************************/
void btif_hh_start_vup_timer(bt_bdaddr_t* bd_addr) {
BTIF_TRACE_DEBUG("%s", __func__);
btif_hh_device_t* p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
CHECK(p_dev != NULL);
alarm_free(p_dev->vup_timer);
p_dev->vup_timer = alarm_new("btif_hh.vup_timer");
alarm_set_on_queue(p_dev->vup_timer, BTIF_TIMEOUT_VUP_MS,
btif_hh_timer_timeout, p_dev, btu_general_alarm_queue);
}
/*******************************************************************************
*
* Function btif_hh_add_added_dev
*
* Description Add a new device to the added device list.
*
* Returns true if add successfully, otherwise false.
******************************************************************************/
bool btif_hh_add_added_dev(bt_bdaddr_t bda, tBTA_HH_ATTR_MASK attr_mask) {
int i;
for (i = 0; i < BTIF_HH_MAX_ADDED_DEV; i++) {
if (memcmp(&(btif_hh_cb.added_devices[i].bd_addr), &bda, BD_ADDR_LEN) ==
0) {
BTIF_TRACE_WARNING(" Device %02X:%02X:%02X:%02X:%02X:%02X already added",
bda.address[0], bda.address[1], bda.address[2],
bda.address[3], bda.address[4], bda.address[5]);
return false;
}
}
for (i = 0; i < BTIF_HH_MAX_ADDED_DEV; i++) {
if (btif_hh_cb.added_devices[i].bd_addr.address[0] == 0 &&
btif_hh_cb.added_devices[i].bd_addr.address[1] == 0 &&
btif_hh_cb.added_devices[i].bd_addr.address[2] == 0 &&
btif_hh_cb.added_devices[i].bd_addr.address[3] == 0 &&
btif_hh_cb.added_devices[i].bd_addr.address[4] == 0 &&
btif_hh_cb.added_devices[i].bd_addr.address[5] == 0) {
BTIF_TRACE_WARNING(" Added device %02X:%02X:%02X:%02X:%02X:%02X",
bda.address[0], bda.address[1], bda.address[2],
bda.address[3], bda.address[4], bda.address[5]);
memcpy(&(btif_hh_cb.added_devices[i].bd_addr), &bda, BD_ADDR_LEN);
btif_hh_cb.added_devices[i].dev_handle = BTA_HH_INVALID_HANDLE;
btif_hh_cb.added_devices[i].attr_mask = attr_mask;
return true;
}
}
BTIF_TRACE_WARNING("%s: Error, out of space to add device", __func__);
return false;
}
/*******************************************************************************
**
** Function btif_hh_remove_device
**
** Description Remove an added device from the stack.
**
** Returns void
******************************************************************************/
void btif_hh_remove_device(bt_bdaddr_t bd_addr) {
int i;
btif_hh_device_t* p_dev;
btif_hh_added_device_t* p_added_dev;
LOG_INFO(LOG_TAG, "%s: bda = %02x:%02x:%02x:%02x:%02x:%02x", __func__,
bd_addr.address[0], bd_addr.address[1], bd_addr.address[2],
bd_addr.address[3], bd_addr.address[4], bd_addr.address[5]);
for (i = 0; i < BTIF_HH_MAX_ADDED_DEV; i++) {
p_added_dev = &btif_hh_cb.added_devices[i];
if (memcmp(&(p_added_dev->bd_addr), &bd_addr, 6) == 0) {
BTA_HhRemoveDev(p_added_dev->dev_handle);
btif_storage_remove_hid_info(&(p_added_dev->bd_addr));
memset(&(p_added_dev->bd_addr), 0, 6);
p_added_dev->dev_handle = BTA_HH_INVALID_HANDLE;
break;
}
}
p_dev = btif_hh_find_dev_by_bda(&bd_addr);
if (p_dev == NULL) {
BTIF_TRACE_WARNING(
" Oops, can't find device [%02x:%02x:%02x:%02x:%02x:%02x]",
bd_addr.address[0], bd_addr.address[1], bd_addr.address[2],
bd_addr.address[3], bd_addr.address[4], bd_addr.address[5]);
return;
}
/* need to notify up-layer device is disconnected to avoid state out of sync
* with up-layer */
HAL_CBACK(bt_hh_callbacks, connection_state_cb, &(p_dev->bd_addr),
BTHH_CONN_STATE_DISCONNECTED);
p_dev->dev_status = BTHH_CONN_STATE_UNKNOWN;
p_dev->dev_handle = BTA_HH_INVALID_HANDLE;
p_dev->ready_for_data = false;
if (btif_hh_cb.device_num > 0) {
btif_hh_cb.device_num--;
} else {
BTIF_TRACE_WARNING("%s: device_num = 0", __func__);
}
p_dev->hh_keep_polling = 0;
p_dev->hh_poll_thread_id = -1;
BTIF_TRACE_DEBUG("%s: uhid fd = %d", __func__, p_dev->fd);
if (p_dev->fd >= 0) {
bta_hh_co_destroy(p_dev->fd);
p_dev->fd = -1;
}
}
bool btif_hh_copy_hid_info(tBTA_HH_DEV_DSCP_INFO* dest,
tBTA_HH_DEV_DSCP_INFO* src) {
dest->descriptor.dl_len = 0;
if (src->descriptor.dl_len > 0) {
dest->descriptor.dsc_list = (uint8_t*)osi_malloc(src->descriptor.dl_len);
}
memcpy(dest->descriptor.dsc_list, src->descriptor.dsc_list,
src->descriptor.dl_len);
dest->descriptor.dl_len = src->descriptor.dl_len;
dest->vendor_id = src->vendor_id;
dest->product_id = src->product_id;
dest->version = src->version;
dest->ctry_code = src->ctry_code;
dest->ssr_max_latency = src->ssr_max_latency;
dest->ssr_min_tout = src->ssr_min_tout;
return true;
}
/*******************************************************************************
*
* Function btif_hh_virtual_unplug
*
* Description Virtual unplug initiated from the BTIF thread context
* Special handling for HID mouse-
*
* Returns void
*
******************************************************************************/
bt_status_t btif_hh_virtual_unplug(bt_bdaddr_t* bd_addr) {
BTIF_TRACE_DEBUG("%s", __func__);
btif_hh_device_t* p_dev;
char bd_str[18];
snprintf(bd_str, sizeof(bd_str), "%02X:%02X:%02X:%02X:%02X:%02X",
bd_addr->address[0], bd_addr->address[1], bd_addr->address[2],
bd_addr->address[3], bd_addr->address[4], bd_addr->address[5]);
p_dev = btif_hh_find_dev_by_bda(bd_addr);
if ((p_dev != NULL) && (p_dev->dev_status == BTHH_CONN_STATE_CONNECTED) &&
(p_dev->attr_mask & HID_VIRTUAL_CABLE)) {
BTIF_TRACE_DEBUG("%s Sending BTA_HH_CTRL_VIRTUAL_CABLE_UNPLUG", __func__);
/* start the timer */
btif_hh_start_vup_timer(bd_addr);
p_dev->local_vup = true;
BTA_HhSendCtrl(p_dev->dev_handle, BTA_HH_CTRL_VIRTUAL_CABLE_UNPLUG);
return BT_STATUS_SUCCESS;
} else {
BTIF_TRACE_ERROR("%s: Error, device %s not opened.", __func__, bd_str);
return BT_STATUS_FAIL;
}
}
/*******************************************************************************
*
* Function btif_hh_connect
*
* Description connection initiated from the BTIF thread context
*
* Returns int status
*
******************************************************************************/
bt_status_t btif_hh_connect(bt_bdaddr_t* bd_addr) {
btif_hh_device_t* dev;
btif_hh_added_device_t* added_dev = NULL;
char bda_str[20];
int i;
BD_ADDR* bda = (BD_ADDR*)bd_addr;
CHECK_BTHH_INIT();
BTIF_TRACE_EVENT("BTHH: %s", __func__);
dev = btif_hh_find_dev_by_bda(bd_addr);
snprintf(bda_str, sizeof(bda_str), "%02X:%02X:%02X:%02X:%02X:%02X", (*bda)[0],
(*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
if (dev == NULL && btif_hh_cb.device_num >= BTIF_HH_MAX_HID) {
// No space for more HID device now.
BTIF_TRACE_WARNING(
"%s: Error, exceeded the maximum supported HID device number %d",
__func__, BTIF_HH_MAX_HID);
return BT_STATUS_FAIL;
}
for (i = 0; i < BTIF_HH_MAX_ADDED_DEV; i++) {
if (memcmp(&(btif_hh_cb.added_devices[i].bd_addr), bd_addr, BD_ADDR_LEN) ==
0) {
added_dev = &btif_hh_cb.added_devices[i];
BTIF_TRACE_WARNING("%s: Device %s already added, attr_mask = 0x%x",
__func__, bda_str, added_dev->attr_mask);
}
}
if (added_dev != NULL) {
if (added_dev->dev_handle == BTA_HH_INVALID_HANDLE) {
// No space for more HID device now.
BTIF_TRACE_ERROR("%s: Error, device %s added but addition failed",
__func__, bda_str);
memset(&(added_dev->bd_addr), 0, 6);
added_dev->dev_handle = BTA_HH_INVALID_HANDLE;
return BT_STATUS_FAIL;
}
}
/* Not checking the NORMALLY_Connectible flags from sdp record, and anyways
sending this
request from host, for subsequent user initiated connection. If the remote is
not in
pagescan mode, we will do 2 retries to connect before giving up */
tBTA_SEC sec_mask = BTUI_HH_SECURITY;
btif_hh_cb.status = BTIF_HH_DEV_CONNECTING;
BTA_HhOpen(*bda, BTA_HH_PROTO_RPT_MODE, sec_mask);
HAL_CBACK(bt_hh_callbacks, connection_state_cb, bd_addr,
BTHH_CONN_STATE_CONNECTING);
return BT_STATUS_SUCCESS;
}
/*******************************************************************************
*
* Function btif_hh_disconnect
*
* Description disconnection initiated from the BTIF thread context
*
* Returns void
*
******************************************************************************/
void btif_hh_disconnect(bt_bdaddr_t* bd_addr) {
btif_hh_device_t* p_dev;
p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
if (p_dev != NULL) {
BTA_HhClose(p_dev->dev_handle);
} else
BTIF_TRACE_DEBUG("%s-- Error: device not connected:", __func__);
}
/*******************************************************************************
*
* Function btif_btif_hh_setreport
*
* Description setreport initiated from the BTIF thread context
*
* Returns void
*
******************************************************************************/
void btif_hh_setreport(btif_hh_device_t* p_dev, bthh_report_type_t r_type,
uint16_t size, uint8_t* report) {
BT_HDR* p_buf = create_pbuf(size, report);
if (p_buf == NULL) {
APPL_TRACE_ERROR("%s: Error, failed to allocate RPT buffer, size = %d",
__func__, size);
return;
}
BTA_HhSetReport(p_dev->dev_handle, r_type, p_buf);
}
/*******************************************************************************
*
* Function btif_hh_service_registration
*
* Description Registers or derigisters the hid host service
*
* Returns none
*
******************************************************************************/
void btif_hh_service_registration(bool enable) {
BTIF_TRACE_API("%s", __func__);
BTIF_TRACE_API("enable = %d", enable);
if (bt_hh_callbacks == NULL) {
// The HID Host service was never initialized (it is either disabled or not
// available in this build). We should proceed directly to changing the HID
// Device service state (if needed).
if (!enable) {
btif_hd_service_registration();
}
} else if (enable) {
BTA_HhEnable(BTA_SEC_ENCRYPT, bte_hh_evt);
} else {
btif_hh_cb.service_dereg_active = TRUE;
BTA_HhDisable();
}
}
/*****************************************************************************
* Section name (Group of functions)
****************************************************************************/
/*****************************************************************************
*
* btif hh api functions (no context switch)
*
****************************************************************************/
/*******************************************************************************
*
* Function btif_hh_upstreams_evt
*
* Description Executes HH UPSTREAMS events in btif context
*
* Returns void
*
******************************************************************************/
static void btif_hh_upstreams_evt(uint16_t event, char* p_param) {
tBTA_HH* p_data = (tBTA_HH*)p_param;
btif_hh_device_t* p_dev = NULL;
int i;
int len, tmplen;
BTIF_TRACE_DEBUG("%s: event=%s dereg = %d", __func__, dump_hh_event(event),
btif_hh_cb.service_dereg_active);
switch (event) {
case BTA_HH_ENABLE_EVT:
BTIF_TRACE_DEBUG("%s: BTA_HH_ENABLE_EVT: status =%d", __func__,
p_data->status);
if (p_data->status == BTA_HH_OK) {
btif_hh_cb.status = BTIF_HH_ENABLED;
BTIF_TRACE_DEBUG("%s--Loading added devices", __func__);
/* Add hid descriptors for already bonded hid devices*/
btif_storage_load_bonded_hid_info();
} else {
btif_hh_cb.status = BTIF_HH_DISABLED;
BTIF_TRACE_WARNING(
"BTA_HH_ENABLE_EVT: Error, HH enabling failed, status = %d",
p_data->status);
}
break;
case BTA_HH_DISABLE_EVT:
btif_hh_cb.status = BTIF_HH_DISABLED;
if (btif_hh_cb.service_dereg_active) {
BTIF_TRACE_DEBUG("BTA_HH_DISABLE_EVT: enabling HID Device service");
btif_hd_service_registration();
btif_hh_cb.service_dereg_active = FALSE;
}
if (p_data->status == BTA_HH_OK) {
int i;
// Clear the control block
for (i = 0; i < BTIF_HH_MAX_HID; i++) {
alarm_free(btif_hh_cb.devices[i].vup_timer);
}
memset(&btif_hh_cb, 0, sizeof(btif_hh_cb));
for (i = 0; i < BTIF_HH_MAX_HID; i++) {
btif_hh_cb.devices[i].dev_status = BTHH_CONN_STATE_UNKNOWN;
}
} else
BTIF_TRACE_WARNING(
"BTA_HH_DISABLE_EVT: Error, HH disabling failed, status = %d",
p_data->status);
break;
case BTA_HH_OPEN_EVT:
BTIF_TRACE_WARNING("%s: BTA_HH_OPN_EVT: handle=%d, status =%d", __func__,
p_data->conn.handle, p_data->conn.status);
if (p_data->conn.status == BTA_HH_OK) {
p_dev = btif_hh_find_connected_dev_by_handle(p_data->conn.handle);
if (p_dev == NULL) {
BTIF_TRACE_WARNING(
"BTA_HH_OPEN_EVT: Error, cannot find device with handle %d",
p_data->conn.handle);
btif_hh_cb.status = (BTIF_HH_STATUS)BTIF_HH_DEV_DISCONNECTED;
// The connect request must come from device side and exceeded the
// connected
// HID device number.
BTA_HhClose(p_data->conn.handle);
HAL_CBACK(bt_hh_callbacks, connection_state_cb,
(bt_bdaddr_t*)&p_data->conn.bda,
BTHH_CONN_STATE_DISCONNECTED);
} else if (p_dev->fd < 0) {
BTIF_TRACE_WARNING(
"BTA_HH_OPEN_EVT: Error, failed to find the uhid driver...");
memcpy(&(p_dev->bd_addr), p_data->conn.bda, BD_ADDR_LEN);
// remove the connection and then try again to reconnect from the
// mouse side to recover
btif_hh_cb.status = (BTIF_HH_STATUS)BTIF_HH_DEV_DISCONNECTED;
BTA_HhClose(p_data->conn.handle);
} else {
BTIF_TRACE_WARNING(
"BTA_HH_OPEN_EVT: Found device...Getting dscp info for handle "
"... %d",
p_data->conn.handle);
memcpy(&(p_dev->bd_addr), p_data->conn.bda, BD_ADDR_LEN);
btif_hh_cb.status = (BTIF_HH_STATUS)BTIF_HH_DEV_CONNECTED;
// Send set_idle if the peer_device is a keyboard
if (check_cod((bt_bdaddr_t*)p_data->conn.bda, COD_HID_KEYBOARD) ||
check_cod((bt_bdaddr_t*)p_data->conn.bda, COD_HID_COMBO))
BTA_HhSetIdle(p_data->conn.handle, 0);
btif_hh_cb.p_curr_dev =
btif_hh_find_connected_dev_by_handle(p_data->conn.handle);
BTA_HhGetDscpInfo(p_data->conn.handle);
p_dev->dev_status = BTHH_CONN_STATE_CONNECTED;
HAL_CBACK(bt_hh_callbacks, connection_state_cb, &(p_dev->bd_addr),
p_dev->dev_status);
}
} else {
bt_bdaddr_t* bdaddr = (bt_bdaddr_t*)p_data->conn.bda;
btif_dm_hh_open_failed(bdaddr);
p_dev = btif_hh_find_dev_by_bda(bdaddr);
if (p_dev != NULL) {
btif_hh_stop_vup_timer(&(p_dev->bd_addr));
if (p_dev->fd >= 0) {
bta_hh_co_destroy(p_dev->fd);
p_dev->fd = -1;
}
p_dev->dev_status = BTHH_CONN_STATE_DISCONNECTED;
}
HAL_CBACK(bt_hh_callbacks, connection_state_cb,
(bt_bdaddr_t*)&p_data->conn.bda,
BTHH_CONN_STATE_DISCONNECTED);
btif_hh_cb.status = (BTIF_HH_STATUS)BTIF_HH_DEV_DISCONNECTED;
}
break;
case BTA_HH_CLOSE_EVT:
BTIF_TRACE_DEBUG("BTA_HH_CLOSE_EVT: status = %d, handle = %d",
p_data->dev_status.status, p_data->dev_status.handle);
p_dev = btif_hh_find_connected_dev_by_handle(p_data->dev_status.handle);
if (p_dev != NULL) {
BTIF_TRACE_DEBUG("%s: uhid fd=%d local_vup=%d", __func__, p_dev->fd,
p_dev->local_vup);
btif_hh_stop_vup_timer(&(p_dev->bd_addr));
/* If this is a locally initiated VUP, remove the bond as ACL got
* disconnected while VUP being processed.
*/
if (p_dev->local_vup) {
p_dev->local_vup = false;
BTA_DmRemoveDevice((uint8_t*)p_dev->bd_addr.address);
}
btif_hh_cb.status = (BTIF_HH_STATUS)BTIF_HH_DEV_DISCONNECTED;
p_dev->dev_status = BTHH_CONN_STATE_DISCONNECTED;
if (p_dev->fd >= 0) {
bta_hh_co_destroy(p_dev->fd);
p_dev->fd = -1;
}
HAL_CBACK(bt_hh_callbacks, connection_state_cb, &(p_dev->bd_addr),
p_dev->dev_status);
} else {
BTIF_TRACE_WARNING("Error: cannot find device with handle %d",
p_data->dev_status.handle);
}
break;
case BTA_HH_GET_RPT_EVT: {
BT_HDR* hdr = p_data->hs_data.rsp_data.p_rpt_data;
uint8_t* data = NULL;
uint16_t len = 0;
BTIF_TRACE_DEBUG("BTA_HH_GET_RPT_EVT: status = %d, handle = %d",
p_data->hs_data.status, p_data->hs_data.handle);
p_dev = btif_hh_find_connected_dev_by_handle(p_data->hs_data.handle);
if (p_dev) {
/* p_rpt_data is NULL in HANDSHAKE response case */
if (hdr) {
data = (uint8_t*)(hdr + 1) + hdr->offset;
len = hdr->len;
HAL_CBACK(bt_hh_callbacks, get_report_cb,
(bt_bdaddr_t*)&(p_dev->bd_addr),
(bthh_status_t)p_data->hs_data.status, data, len);
} else {
HAL_CBACK(bt_hh_callbacks, handshake_cb,
(bt_bdaddr_t*)&(p_dev->bd_addr),
(bthh_status_t)p_data->hs_data.status);
}
} else {
BTIF_TRACE_WARNING("Error: cannot find device with handle %d",
p_data->hs_data.handle);
}
break;
}
case BTA_HH_SET_RPT_EVT:
BTIF_TRACE_DEBUG("BTA_HH_SET_RPT_EVT: status = %d, handle = %d",
p_data->dev_status.status, p_data->dev_status.handle);
p_dev = btif_hh_find_connected_dev_by_handle(p_data->dev_status.handle);
if (p_dev != NULL) {
HAL_CBACK(bt_hh_callbacks, handshake_cb,
(bt_bdaddr_t*)&(p_dev->bd_addr),
(bthh_status_t)p_data->hs_data.status);
}
break;
case BTA_HH_GET_PROTO_EVT:
p_dev = btif_hh_find_connected_dev_by_handle(p_data->dev_status.handle);
BTIF_TRACE_WARNING(
"BTA_HH_GET_PROTO_EVT: status = %d, handle = %d, proto = [%d], %s",
p_data->hs_data.status, p_data->hs_data.handle,
p_data->hs_data.rsp_data.proto_mode,
(p_data->hs_data.rsp_data.proto_mode == BTA_HH_PROTO_RPT_MODE)
? "Report Mode"
: (p_data->hs_data.rsp_data.proto_mode == BTA_HH_PROTO_BOOT_MODE)
? "Boot Mode"
: "Unsupported");
if (p_data->hs_data.rsp_data.proto_mode != BTA_HH_PROTO_UNKNOWN) {
HAL_CBACK(bt_hh_callbacks, protocol_mode_cb,
(bt_bdaddr_t*)&(p_dev->bd_addr),
(bthh_status_t)p_data->hs_data.status,
(bthh_protocol_mode_t)p_data->hs_data.rsp_data.proto_mode);
} else {
HAL_CBACK(bt_hh_callbacks, handshake_cb,
(bt_bdaddr_t*)&(p_dev->bd_addr),
(bthh_status_t)p_data->hs_data.status);
}
break;
case BTA_HH_SET_PROTO_EVT:
BTIF_TRACE_DEBUG("BTA_HH_SET_PROTO_EVT: status = %d, handle = %d",
p_data->dev_status.status, p_data->dev_status.handle);
p_dev = btif_hh_find_connected_dev_by_handle(p_data->dev_status.handle);
if (p_dev) {
HAL_CBACK(bt_hh_callbacks, handshake_cb,
(bt_bdaddr_t*)&(p_dev->bd_addr),
(bthh_status_t)p_data->hs_data.status);
}
break;
case BTA_HH_GET_IDLE_EVT:
BTIF_TRACE_DEBUG(
"BTA_HH_GET_IDLE_EVT: handle = %d, status = %d, rate = %d",
p_data->hs_data.handle, p_data->hs_data.status,
p_data->hs_data.rsp_data.idle_rate);
break;
case BTA_HH_SET_IDLE_EVT:
BTIF_TRACE_DEBUG("BTA_HH_SET_IDLE_EVT: status = %d, handle = %d",
p_data->dev_status.status, p_data->dev_status.handle);
break;
case BTA_HH_GET_DSCP_EVT:
len = p_data->dscp_info.descriptor.dl_len;
BTIF_TRACE_DEBUG("BTA_HH_GET_DSCP_EVT: len = %d", len);
p_dev = btif_hh_cb.p_curr_dev;
if (p_dev == NULL) {
BTIF_TRACE_ERROR(
"BTA_HH_GET_DSCP_EVT: No HID device is currently connected");
return;
}
if (p_dev->fd < 0) {
LOG_ERROR(
LOG_TAG,
"BTA_HH_GET_DSCP_EVT: Error, failed to find the uhid driver...");
return;
}
{
const char* cached_name = NULL;
bt_bdname_t bdname;
bt_property_t prop_name;
BTIF_STORAGE_FILL_PROPERTY(&prop_name, BT_PROPERTY_BDNAME,
sizeof(bt_bdname_t), &bdname);
if (btif_storage_get_remote_device_property(
&p_dev->bd_addr, &prop_name) == BT_STATUS_SUCCESS) {
cached_name = (char*)bdname.name;
} else {
cached_name = "Bluetooth HID";
}
BTIF_TRACE_WARNING("%s: name = %s", __func__, cached_name);
bta_hh_co_send_hid_info(p_dev, cached_name, p_data->dscp_info.vendor_id,
p_data->dscp_info.product_id,
p_data->dscp_info.version,
p_data->dscp_info.ctry_code, len,
p_data->dscp_info.descriptor.dsc_list);
if (btif_hh_add_added_dev(p_dev->bd_addr, p_dev->attr_mask)) {
BD_ADDR bda;
bdcpy(bda, p_dev->bd_addr.address);
tBTA_HH_DEV_DSCP_INFO dscp_info;
bt_status_t ret;
bdcpy(bda, p_dev->bd_addr.address);
btif_hh_copy_hid_info(&dscp_info, &p_data->dscp_info);
BTIF_TRACE_DEBUG(
"BTA_HH_GET_DSCP_EVT:bda = %02x:%02x:%02x:%02x:%02x:%02x",
p_dev->bd_addr.address[0], p_dev->bd_addr.address[1],
p_dev->bd_addr.address[2], p_dev->bd_addr.address[3],
p_dev->bd_addr.address[4], p_dev->bd_addr.address[5]);
BTA_HhAddDev(bda, p_dev->attr_mask, p_dev->sub_class, p_dev->app_id,
dscp_info);
// write hid info to nvram
ret = btif_storage_add_hid_device_info(
&(p_dev->bd_addr), p_dev->attr_mask, p_dev->sub_class,
p_dev->app_id, p_data->dscp_info.vendor_id,
p_data->dscp_info.product_id, p_data->dscp_info.version,
p_data->dscp_info.ctry_code, p_data->dscp_info.ssr_max_latency,
p_data->dscp_info.ssr_min_tout, len,
p_data->dscp_info.descriptor.dsc_list);
ASSERTC(ret == BT_STATUS_SUCCESS, "storing hid info failed", ret);
BTIF_TRACE_WARNING("BTA_HH_GET_DSCP_EVT: Called add device");
// Free buffer created for dscp_info;
if (dscp_info.descriptor.dl_len > 0 &&
dscp_info.descriptor.dsc_list != NULL) {
osi_free_and_reset((void**)&dscp_info.descriptor.dsc_list);
dscp_info.descriptor.dl_len = 0;
}
} else {
// Device already added.
BTIF_TRACE_WARNING("%s: Device already added ", __func__);
}
/*Sync HID Keyboard lockstates */
tmplen = sizeof(hid_kb_numlock_on_list) / sizeof(tHID_KB_LIST);
for (i = 0; i < tmplen; i++) {
if (p_data->dscp_info.vendor_id ==
hid_kb_numlock_on_list[i].version_id &&
p_data->dscp_info.product_id ==
hid_kb_numlock_on_list[i].product_id) {
BTIF_TRACE_DEBUG(
"%s() idx[%d] Enabling "
"NUMLOCK for device :: %s",
__func__, i, hid_kb_numlock_on_list[i].kb_name);
/* Enable NUMLOCK by default so that numeric
keys work from first keyboard connect */
set_keylockstate(BTIF_HH_KEYSTATE_MASK_NUMLOCK, true);
sync_lockstate_on_connect(p_dev);
/* End Sync HID Keyboard lockstates */
break;
}
}
}
break;
case BTA_HH_ADD_DEV_EVT:
BTIF_TRACE_WARNING("BTA_HH_ADD_DEV_EVT: status = %d, handle = %d",
p_data->dev_info.status, p_data->dev_info.handle);
int i;
for (i = 0; i < BTIF_HH_MAX_ADDED_DEV; i++) {
if (memcmp(btif_hh_cb.added_devices[i].bd_addr.address,
p_data->dev_info.bda, 6) == 0) {
if (p_data->dev_info.status == BTA_HH_OK) {
btif_hh_cb.added_devices[i].dev_handle = p_data->dev_info.handle;
} else {
memset(btif_hh_cb.added_devices[i].bd_addr.address, 0, 6);
btif_hh_cb.added_devices[i].dev_handle = BTA_HH_INVALID_HANDLE;
}
break;
}
}
break;
case BTA_HH_RMV_DEV_EVT:
BTIF_TRACE_DEBUG("BTA_HH_RMV_DEV_EVT: status = %d, handle = %d",
p_data->dev_info.status, p_data->dev_info.handle);
BTIF_TRACE_DEBUG("BTA_HH_RMV_DEV_EVT:bda = %02x:%02x:%02x:%02x:%02x:%02x",
p_data->dev_info.bda[0], p_data->dev_info.bda[1],
p_data->dev_info.bda[2], p_data->dev_info.bda[3],
p_data->dev_info.bda[4], p_data->dev_info.bda[5]);
break;
case BTA_HH_VC_UNPLUG_EVT:
BTIF_TRACE_DEBUG("BTA_HH_VC_UNPLUG_EVT: status = %d, handle = %d",
p_data->dev_status.status, p_data->dev_status.handle);
p_dev = btif_hh_find_connected_dev_by_handle(p_data->dev_status.handle);
btif_hh_cb.status = (BTIF_HH_STATUS)BTIF_HH_DEV_DISCONNECTED;
if (p_dev != NULL) {
BTIF_TRACE_DEBUG(
"BTA_HH_VC_UNPLUG_EVT:bda = %02x:%02x:%02x:%02x:%02x:%02x",
p_dev->bd_addr.address[0], p_dev->bd_addr.address[1],
p_dev->bd_addr.address[2], p_dev->bd_addr.address[3],
p_dev->bd_addr.address[4], p_dev->bd_addr.address[5]);
/* Stop the VUP timer */
btif_hh_stop_vup_timer(&(p_dev->bd_addr));
p_dev->dev_status = BTHH_CONN_STATE_DISCONNECTED;
BTIF_TRACE_DEBUG("%s---Sending connection state change", __func__);
HAL_CBACK(bt_hh_callbacks, connection_state_cb, &(p_dev->bd_addr),
p_dev->dev_status);
BTIF_TRACE_DEBUG("%s---Removing HID bond", __func__);
/* If it is locally initiated VUP or remote device has its major COD as
Peripheral removed the bond.*/
if (p_dev->local_vup || check_cod_hid(&(p_dev->bd_addr))) {
p_dev->local_vup = false;
BTA_DmRemoveDevice((uint8_t*)p_dev->bd_addr.address);
} else
btif_hh_remove_device(p_dev->bd_addr);
HAL_CBACK(bt_hh_callbacks, virtual_unplug_cb, &(p_dev->bd_addr),
(bthh_status_t)p_data->dev_status.status);
}
break;
case BTA_HH_API_ERR_EVT:
LOG_INFO(LOG_TAG, "BTA_HH API_ERR");
break;
default:
BTIF_TRACE_WARNING("%s: Unhandled event: %d", __func__, event);
break;
}
}
/*******************************************************************************
*
* Function bte_hh_evt
*
* Description Switches context from BTE to BTIF for all HH events
*
* Returns void
*
******************************************************************************/
void bte_hh_evt(tBTA_HH_EVT event, tBTA_HH* p_data) {
bt_status_t status;
int param_len = 0;
if (BTA_HH_ENABLE_EVT == event)
param_len = sizeof(tBTA_HH_STATUS);
else if (BTA_HH_OPEN_EVT == event)
param_len = sizeof(tBTA_HH_CONN);
else if (BTA_HH_DISABLE_EVT == event)
param_len = sizeof(tBTA_HH_STATUS);
else if (BTA_HH_CLOSE_EVT == event)
param_len = sizeof(tBTA_HH_CBDATA);
else if (BTA_HH_GET_DSCP_EVT == event)
param_len = sizeof(tBTA_HH_DEV_DSCP_INFO);
else if ((BTA_HH_GET_PROTO_EVT == event) || (BTA_HH_GET_RPT_EVT == event) ||
(BTA_HH_GET_IDLE_EVT == event))
param_len = sizeof(tBTA_HH_HSDATA);
else if ((BTA_HH_SET_PROTO_EVT == event) || (BTA_HH_SET_RPT_EVT == event) ||
(BTA_HH_VC_UNPLUG_EVT == event) || (BTA_HH_SET_IDLE_EVT == event))
param_len = sizeof(tBTA_HH_CBDATA);
else if ((BTA_HH_ADD_DEV_EVT == event) || (BTA_HH_RMV_DEV_EVT == event))
param_len = sizeof(tBTA_HH_DEV_INFO);
else if (BTA_HH_API_ERR_EVT == event)
param_len = 0;
/* switch context to btif task context (copy full union size for convenience)
*/
status = btif_transfer_context(btif_hh_upstreams_evt, (uint16_t)event,
(char*)p_data, param_len, NULL);
/* catch any failed context transfers */
ASSERTC(status == BT_STATUS_SUCCESS, "context transfer failed", status);
}
/*******************************************************************************
*
* Function btif_hh_handle_evt
*
* Description Switches context for immediate callback
*
* Returns void
*
******************************************************************************/
static void btif_hh_handle_evt(uint16_t event, char* p_param) {
bt_bdaddr_t* bd_addr = (bt_bdaddr_t*)p_param;
BTIF_TRACE_EVENT("%s: event=%d", __func__, event);
int ret;
switch (event) {
case BTIF_HH_CONNECT_REQ_EVT: {
ret = btif_hh_connect(bd_addr);
if (ret == BT_STATUS_SUCCESS) {
HAL_CBACK(bt_hh_callbacks, connection_state_cb, bd_addr,
BTHH_CONN_STATE_CONNECTING);
} else
HAL_CBACK(bt_hh_callbacks, connection_state_cb, bd_addr,
BTHH_CONN_STATE_DISCONNECTED);
} break;
case BTIF_HH_DISCONNECT_REQ_EVT: {
BTIF_TRACE_EVENT("%s: event=%d", __func__, event);
btif_hh_disconnect(bd_addr);
HAL_CBACK(bt_hh_callbacks, connection_state_cb, bd_addr,
BTHH_CONN_STATE_DISCONNECTING);
} break;
case BTIF_HH_VUP_REQ_EVT: {
BTIF_TRACE_EVENT("%s: event=%d", __func__, event);
ret = btif_hh_virtual_unplug(bd_addr);
} break;
default: {
BTIF_TRACE_WARNING("%s : Unknown event 0x%x", __func__, event);
} break;
}
}
/*******************************************************************************
*
* Function btif_hh_timer_timeout
*
* Description Process timer timeout
*
* Returns void
******************************************************************************/
void btif_hh_timer_timeout(void* data) {
btif_hh_device_t* p_dev = (btif_hh_device_t*)data;
tBTA_HH_EVT event = BTA_HH_VC_UNPLUG_EVT;
tBTA_HH p_data;
int param_len = sizeof(tBTA_HH_CBDATA);
BTIF_TRACE_DEBUG("%s", __func__);
if (p_dev->dev_status != BTHH_CONN_STATE_CONNECTED) return;
memset(&p_data, 0, sizeof(tBTA_HH));
p_data.dev_status.status = BTHH_ERR;
p_data.dev_status.handle = p_dev->dev_handle;
/* switch context to btif task context */
btif_transfer_context(btif_hh_upstreams_evt, (uint16_t)event, (char*)&p_data,
param_len, NULL);
}
/*******************************************************************************
*
* Function btif_hh_init
*
* Description initializes the hh interface
*
* Returns bt_status_t
*
******************************************************************************/
static bt_status_t init(bthh_callbacks_t* callbacks) {
uint32_t i;
BTIF_TRACE_EVENT("%s", __func__);
bt_hh_callbacks = callbacks;
memset(&btif_hh_cb, 0, sizeof(btif_hh_cb));
for (i = 0; i < BTIF_HH_MAX_HID; i++) {
btif_hh_cb.devices[i].dev_status = BTHH_CONN_STATE_UNKNOWN;
}
/* Invoke the enable service API to the core to set the appropriate service_id
*/
btif_enable_service(BTA_HID_SERVICE_ID);
return BT_STATUS_SUCCESS;
}
/*******************************************************************************
*
* Function connect
*
* Description connect to hid device
*
* Returns bt_status_t
*
******************************************************************************/
static bt_status_t connect(bt_bdaddr_t* bd_addr) {
if (btif_hh_cb.status != BTIF_HH_DEV_CONNECTING) {
btif_transfer_context(btif_hh_handle_evt, BTIF_HH_CONNECT_REQ_EVT,
(char*)bd_addr, sizeof(bt_bdaddr_t), NULL);
return BT_STATUS_SUCCESS;
} else
return BT_STATUS_BUSY;
}
/*******************************************************************************
*
* Function disconnect
*
* Description disconnect from hid device
*
* Returns bt_status_t
*
******************************************************************************/
static bt_status_t disconnect(bt_bdaddr_t* bd_addr) {
CHECK_BTHH_INIT();
BTIF_TRACE_EVENT("BTHH: %s", __func__);
btif_hh_device_t* p_dev;
if (btif_hh_cb.status == BTIF_HH_DISABLED) {
BTIF_TRACE_WARNING("%s: Error, HH status = %d", __func__,
btif_hh_cb.status);
return BT_STATUS_FAIL;
}
p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
if (p_dev != NULL) {
return btif_transfer_context(btif_hh_handle_evt, BTIF_HH_DISCONNECT_REQ_EVT,
(char*)bd_addr, sizeof(bt_bdaddr_t), NULL);
} else {
BTIF_TRACE_WARNING("%s: Error, device not opened.", __func__);
return BT_STATUS_FAIL;
}
}
/*******************************************************************************
*
* Function virtual_unplug
*
* Description Virtual UnPlug (VUP) the specified HID device.
*
* Returns bt_status_t
*
******************************************************************************/
static bt_status_t virtual_unplug(bt_bdaddr_t* bd_addr) {
CHECK_BTHH_INIT();
BTIF_TRACE_EVENT("BTHH: %s", __func__);
btif_hh_device_t* p_dev;
char bd_str[18];
snprintf(bd_str, sizeof(bd_str), "%02X:%02X:%02X:%02X:%02X:%02X",
bd_addr->address[0], bd_addr->address[1], bd_addr->address[2],
bd_addr->address[3], bd_addr->address[4], bd_addr->address[5]);
if (btif_hh_cb.status == BTIF_HH_DISABLED) {
BTIF_TRACE_ERROR("%s: Error, HH status = %d", __func__, btif_hh_cb.status);
return BT_STATUS_FAIL;
}
p_dev = btif_hh_find_dev_by_bda(bd_addr);
if (!p_dev) {
BTIF_TRACE_ERROR("%s: Error, device %s not opened.", __func__, bd_str);
return BT_STATUS_FAIL;
}
btif_transfer_context(btif_hh_handle_evt, BTIF_HH_VUP_REQ_EVT, (char*)bd_addr,
sizeof(bt_bdaddr_t), NULL);
return BT_STATUS_SUCCESS;
}
/*******************************************************************************
*
* Function set_info
*
* Description Set the HID device descriptor for the specified HID device.
*
* Returns bt_status_t
*
******************************************************************************/
static bt_status_t set_info(bt_bdaddr_t* bd_addr, bthh_hid_info_t hid_info) {
CHECK_BTHH_INIT();
tBTA_HH_DEV_DSCP_INFO dscp_info;
BD_ADDR* bda = (BD_ADDR*)bd_addr;
BTIF_TRACE_DEBUG("BTHH: %s: addr = %02X:%02X:%02X:%02X:%02X:%02X", __func__,
(*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4],
(*bda)[5]);
BTIF_TRACE_DEBUG(
"BTHH: %s: sub_class = 0x%02x, app_id = %d, vendor_id = 0x%04x, "
"product_id = 0x%04x, version= 0x%04x",
__func__, hid_info.sub_class, hid_info.app_id, hid_info.vendor_id,
hid_info.product_id, hid_info.version);
if (btif_hh_cb.status == BTIF_HH_DISABLED) {
BTIF_TRACE_ERROR("%s: Error, HH status = %d", __func__, btif_hh_cb.status);
return BT_STATUS_FAIL;
}
dscp_info.vendor_id = hid_info.vendor_id;
dscp_info.product_id = hid_info.product_id;
dscp_info.version = hid_info.version;
dscp_info.ctry_code = hid_info.ctry_code;
dscp_info.descriptor.dl_len = hid_info.dl_len;
dscp_info.descriptor.dsc_list =
(uint8_t*)osi_malloc(dscp_info.descriptor.dl_len);
memcpy(dscp_info.descriptor.dsc_list, &(hid_info.dsc_list), hid_info.dl_len);
if (btif_hh_add_added_dev(*bd_addr, hid_info.attr_mask)) {
BTA_HhAddDev(*bda, hid_info.attr_mask, hid_info.sub_class, hid_info.app_id,
dscp_info);
}
osi_free_and_reset((void**)&dscp_info.descriptor.dsc_list);
return BT_STATUS_SUCCESS;
}
/*******************************************************************************
*
* Function get_protocol
*
* Description Get the HID proto mode.
*
* Returns bt_status_t
*
******************************************************************************/
static bt_status_t get_protocol(bt_bdaddr_t* bd_addr,
UNUSED_ATTR bthh_protocol_mode_t protocolMode) {
CHECK_BTHH_INIT();
btif_hh_device_t* p_dev;
BD_ADDR* bda = (BD_ADDR*)bd_addr;
BTIF_TRACE_DEBUG("BTHH: %s: addr = %02X:%02X:%02X:%02X:%02X:%02X", __func__,
(*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4],
(*bda)[5]);
if (btif_hh_cb.status == BTIF_HH_DISABLED) {
BTIF_TRACE_ERROR("%s: Error, HH status = %d", __func__, btif_hh_cb.status);
return BT_STATUS_FAIL;
}
p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
if (p_dev != NULL) {
BTA_HhGetProtoMode(p_dev->dev_handle);
} else {
return BT_STATUS_FAIL;
}
return BT_STATUS_SUCCESS;
}
/*******************************************************************************
*
* Function set_protocol
*
* Description Set the HID proto mode.
*
* Returns bt_status_t
*
******************************************************************************/
static bt_status_t set_protocol(bt_bdaddr_t* bd_addr,
bthh_protocol_mode_t protocolMode) {
CHECK_BTHH_INIT();
btif_hh_device_t* p_dev;
uint8_t proto_mode = protocolMode;
BD_ADDR* bda = (BD_ADDR*)bd_addr;
BTIF_TRACE_DEBUG(
"BTHH: %s: proto_mode = %d"
" addr = %02X:%02X:%02X:%02X:%02X:%02X",
__func__, protocolMode, (*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3],
(*bda)[4], (*bda)[5]);
if (btif_hh_cb.status == BTIF_HH_DISABLED) {
BTIF_TRACE_ERROR("%s: Error, HH status = %d", __func__, btif_hh_cb.status);
return BT_STATUS_FAIL;
}
p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
if (p_dev == NULL) {
BTIF_TRACE_WARNING(
" Error, device %02X:%02X:%02X:%02X:%02X:%02X not opened.", (*bda)[0],
(*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
return BT_STATUS_FAIL;
} else if (protocolMode != BTA_HH_PROTO_RPT_MODE &&
protocolMode != BTA_HH_PROTO_BOOT_MODE) {
BTIF_TRACE_WARNING("%s: Error, device proto_mode = %d.", __func__,
proto_mode);
return BT_STATUS_FAIL;
} else {
BTA_HhSetProtoMode(p_dev->dev_handle, protocolMode);
}
return BT_STATUS_SUCCESS;
}
/*******************************************************************************
*
* Function get_report
*
* Description Send a GET_REPORT to HID device.
*
* Returns bt_status_t
*
******************************************************************************/
static bt_status_t get_report(bt_bdaddr_t* bd_addr,
bthh_report_type_t reportType, uint8_t reportId,
int bufferSize) {
CHECK_BTHH_INIT();
btif_hh_device_t* p_dev;
BD_ADDR* bda = (BD_ADDR*)bd_addr;
BTIF_TRACE_DEBUG(
"BTHH: %s: r_type = %d, rpt_id = %d, buf_size = %d"
" addr = %02X:%02X:%02X:%02X:%02X:%02X",
__func__, reportType, reportId, bufferSize, (*bda)[0], (*bda)[1],
(*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
if (btif_hh_cb.status == BTIF_HH_DISABLED) {
BTIF_TRACE_ERROR("%s: Error, HH status = %d", __func__, btif_hh_cb.status);
return BT_STATUS_FAIL;
}
p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
if (p_dev == NULL) {
BTIF_TRACE_ERROR(
"%s: Error, device %02X:%02X:%02X:%02X:%02X:%02X not opened.", __func__,
(*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
return BT_STATUS_FAIL;
} else if (((int)reportType) <= BTA_HH_RPTT_RESRV ||
((int)reportType) > BTA_HH_RPTT_FEATURE) {
BTIF_TRACE_ERROR(" Error, device %02X:%02X:%02X:%02X:%02X:%02X not opened.",
(*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4],
(*bda)[5]);
return BT_STATUS_FAIL;
} else {
BTA_HhGetReport(p_dev->dev_handle, reportType, reportId, bufferSize);
}
return BT_STATUS_SUCCESS;
}
/*******************************************************************************
*
* Function set_report
*
* Description Send a SET_REPORT to HID device.
*
* Returns bt_status_t
*
******************************************************************************/
static bt_status_t set_report(bt_bdaddr_t* bd_addr,
bthh_report_type_t reportType, char* report) {
CHECK_BTHH_INIT();
btif_hh_device_t* p_dev;
BD_ADDR* bda = (BD_ADDR*)bd_addr;
BTIF_TRACE_DEBUG(
"BTHH %s: reportType = %d"
" addr = %02X:%02X:%02X:%02X:%02X:%02X",
__func__, reportType, (*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3],
(*bda)[4], (*bda)[5]);
if (btif_hh_cb.status == BTIF_HH_DISABLED) {
BTIF_TRACE_ERROR("%s: Error, HH status = %d", __func__, btif_hh_cb.status);
return BT_STATUS_FAIL;
}
p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
if (p_dev == NULL) {
BTIF_TRACE_ERROR(
"%s: Error, device %02X:%02X:%02X:%02X:%02X:%02X not opened.", __func__,
(*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
return BT_STATUS_FAIL;
} else if (((int)reportType) <= BTA_HH_RPTT_RESRV ||
((int)reportType) > BTA_HH_RPTT_FEATURE) {
BTIF_TRACE_ERROR(" Error, device %02X:%02X:%02X:%02X:%02X:%02X not opened.",
(*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4],
(*bda)[5]);
return BT_STATUS_FAIL;
} else {
int hex_bytes_filled;
size_t len = (strlen(report) + 1) / 2;
uint8_t* hexbuf = (uint8_t*)osi_calloc(len);
/* Build a SetReport data buffer */
// TODO
hex_bytes_filled = ascii_2_hex(report, len, hexbuf);
LOG_INFO(LOG_TAG, "Hex bytes filled, hex value: %d", hex_bytes_filled);
if (hex_bytes_filled) {
BT_HDR* p_buf = create_pbuf(hex_bytes_filled, hexbuf);
if (p_buf == NULL) {
BTIF_TRACE_ERROR("%s: Error, failed to allocate RPT buffer, len = %d",
__func__, hex_bytes_filled);
osi_free(hexbuf);
return BT_STATUS_FAIL;
}
BTA_HhSetReport(p_dev->dev_handle, reportType, p_buf);
osi_free(hexbuf);
return BT_STATUS_SUCCESS;
}
osi_free(hexbuf);
return BT_STATUS_FAIL;
}
}
/*******************************************************************************
*
* Function send_data
*
* Description Send a SEND_DATA to HID device.
*
* Returns bt_status_t
*
******************************************************************************/
static bt_status_t send_data(bt_bdaddr_t* bd_addr, char* data) {
CHECK_BTHH_INIT();
btif_hh_device_t* p_dev;
BD_ADDR* bda = (BD_ADDR*)bd_addr;
BTIF_TRACE_DEBUG("BTHH %s: addr = %02X:%02X:%02X:%02X:%02X:%02X", __func__,
(*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4],
(*bda)[5]);
if (btif_hh_cb.status == BTIF_HH_DISABLED) {
BTIF_TRACE_ERROR("%s: Error, HH status = %d", __func__, btif_hh_cb.status);
return BT_STATUS_FAIL;
}
p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
if (p_dev == NULL) {
BTIF_TRACE_ERROR(
"%s: Error, device %02X:%02X:%02X:%02X:%02X:%02X not opened.", __func__,
(*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
return BT_STATUS_FAIL;
}
else {
int hex_bytes_filled;
size_t len = (strlen(data) + 1) / 2;
uint8_t* hexbuf = (uint8_t*)osi_calloc(len);
/* Build a SendData data buffer */
hex_bytes_filled = ascii_2_hex(data, len, hexbuf);
BTIF_TRACE_ERROR("Hex bytes filled, hex value: %d, %d", hex_bytes_filled,
len);
if (hex_bytes_filled) {
BT_HDR* p_buf = create_pbuf(hex_bytes_filled, hexbuf);
if (p_buf == NULL) {
BTIF_TRACE_ERROR("%s: Error, failed to allocate RPT buffer, len = %d",
__func__, hex_bytes_filled);
osi_free(hexbuf);
return BT_STATUS_FAIL;
}
p_buf->layer_specific = BTA_HH_RPTT_OUTPUT;
BTA_HhSendData(p_dev->dev_handle, *bda, p_buf);
osi_free(hexbuf);
return BT_STATUS_SUCCESS;
}
osi_free(hexbuf);
return BT_STATUS_FAIL;
}
}
/*******************************************************************************
*
* Function cleanup
*
* Description Closes the HH interface
*
* Returns bt_status_t
*
******************************************************************************/
static void cleanup(void) {
BTIF_TRACE_EVENT("%s", __func__);
btif_hh_device_t* p_dev;
int i;
if (btif_hh_cb.status == BTIF_HH_DISABLED) {
BTIF_TRACE_WARNING("%s: HH disabling or disabled already, status = %d",
__func__, btif_hh_cb.status);
return;
}
if (bt_hh_callbacks) {
btif_hh_cb.status = BTIF_HH_DISABLING;
/* update flag, not to enable hid device service now as BT is switching off
*/
btif_hh_cb.service_dereg_active = FALSE;
btif_disable_service(BTA_HID_SERVICE_ID);
bt_hh_callbacks = NULL;
}
for (i = 0; i < BTIF_HH_MAX_HID; i++) {
p_dev = &btif_hh_cb.devices[i];
if (p_dev->dev_status != BTHH_CONN_STATE_UNKNOWN && p_dev->fd >= 0) {
BTIF_TRACE_DEBUG("%s: Closing uhid fd = %d", __func__, p_dev->fd);
if (p_dev->fd >= 0) {
bta_hh_co_destroy(p_dev->fd);
p_dev->fd = -1;
}
p_dev->hh_keep_polling = 0;
p_dev->hh_poll_thread_id = -1;
}
}
}
static const bthh_interface_t bthhInterface = {
sizeof(bthhInterface), init, connect, disconnect, virtual_unplug, set_info,
get_protocol, set_protocol,
// get_idle_time,
// set_idle_time,
get_report, set_report, send_data, cleanup,
};
/*******************************************************************************
*
* Function btif_hh_execute_service
*
* Description Initializes/Shuts down the service
*
* Returns BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise
*
******************************************************************************/
bt_status_t btif_hh_execute_service(bool b_enable) {
if (b_enable) {
/* Enable and register with BTA-HH */
BTA_HhEnable(BTUI_HH_SECURITY, bte_hh_evt);
} else {
/* Disable HH */
BTA_HhDisable();
}
return BT_STATUS_SUCCESS;
}
/*******************************************************************************
*
* Function btif_hh_get_interface
*
* Description Get the hh callback interface
*
* Returns bthh_interface_t
*
******************************************************************************/
const bthh_interface_t* btif_hh_get_interface() {
BTIF_TRACE_EVENT("%s", __func__);
return &bthhInterface;
}