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/******************************************************************************
*
* Copyright (C) 2005-2012 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.
*
******************************************************************************/
/******************************************************************************
*
* This file contains the HID HOST API in the subsystem of BTA.
*
******************************************************************************/
#include "common/bt_target.h"
#if defined(BTA_HH_INCLUDED) && (BTA_HH_INCLUDED == TRUE)
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "bta/bta_hh_api.h"
#include "bta_hh_int.h"
#include "stack/l2c_api.h"
#include "bta/utl.h"
#include "osi/allocator.h"
/*****************************************************************************
** Constants
*****************************************************************************/
static const tBTA_SYS_REG bta_hh_reg = {
bta_hh_hdl_event,
BTA_HhDisable
};
/*******************************************************************************
**
** Function BTA_HhEnable
**
** Description Enable the HID host. This function must be called before
** any other functions in the HID host API are called. When the
** enable operation is complete the callback function will be
** called with BTA_HH_ENABLE_EVT.
**
**
** Returns void
**
*******************************************************************************/
void BTA_HhEnable(tBTA_SEC sec_mask, tBTA_HH_CBACK *p_cback)
{
tBTA_HH_API_ENABLE *p_buf;
/* register with BTA system manager */
bta_sys_register(BTA_ID_HH, &bta_hh_reg);
APPL_TRACE_API("%s sec_mask:0x%x p_cback:%p", __func__, sec_mask, p_cback);
p_buf = (tBTA_HH_API_ENABLE *)osi_malloc((UINT16)sizeof(tBTA_HH_API_ENABLE));
if (p_buf != NULL) {
memset(p_buf, 0, sizeof(tBTA_HH_API_ENABLE));
p_buf->hdr.event = BTA_HH_API_ENABLE_EVT;
p_buf->p_cback = p_cback;
p_buf->sec_mask = sec_mask;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_HhDisable
**
** Description Disable the HID host. If the server is currently
** connected, the connection will be closed.
**
** Returns void
**
*******************************************************************************/
void BTA_HhDisable(void)
{
BT_HDR *p_buf;
bta_sys_deregister(BTA_ID_HH);
if ((p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR))) != NULL) {
p_buf->event = BTA_HH_API_DISABLE_EVT;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_HhClose
**
** Description Disconnect a connection.
**
** Returns void
**
*******************************************************************************/
void BTA_HhClose(UINT8 dev_handle)
{
BT_HDR *p_buf;
if ((p_buf = (BT_HDR *)osi_malloc((UINT16)sizeof(BT_HDR))) != NULL) {
memset(p_buf, 0, sizeof(BT_HDR));
p_buf->event = BTA_HH_API_CLOSE_EVT;
p_buf->layer_specific = (UINT16) dev_handle;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_HhOpen
**
** Description Connect to a device of specified BD address in specified
** protocol mode and security level.
**
** Returns void
**
*******************************************************************************/
void BTA_HhOpen(BD_ADDR dev_bda, tBTA_HH_PROTO_MODE mode, tBTA_SEC sec_mask)
{
tBTA_HH_API_CONN *p_buf;
p_buf = (tBTA_HH_API_CONN *)osi_malloc((UINT16)sizeof(tBTA_HH_API_CONN));
if (p_buf != NULL) {
memset((void *)p_buf, 0, sizeof(tBTA_HH_API_CONN));
p_buf->hdr.event = BTA_HH_API_OPEN_EVT;
p_buf->hdr.layer_specific = BTA_HH_INVALID_HANDLE;
p_buf->sec_mask = sec_mask;
p_buf->mode = mode;
bdcpy(p_buf->bd_addr, dev_bda);
bta_sys_sendmsg((void *)p_buf);
} else {
APPL_TRACE_ERROR("No resource to send HID host Connect request.");
}
}
/*******************************************************************************
**
** Function bta_hh_snd_write_dev
**
*******************************************************************************/
static void bta_hh_snd_write_dev(UINT8 dev_handle, UINT8 t_type, UINT8 param,
UINT16 data, UINT8 rpt_id, BT_HDR *p_data)
{
tBTA_HH_CMD_DATA *p_buf;
UINT16 len = (UINT16) (sizeof(tBTA_HH_CMD_DATA) );
if ((p_buf = (tBTA_HH_CMD_DATA *)osi_malloc(len)) != NULL) {
memset(p_buf, 0, sizeof(tBTA_HH_CMD_DATA));
p_buf->hdr.event = BTA_HH_API_WRITE_DEV_EVT;
p_buf->hdr.layer_specific = (UINT16) dev_handle;
p_buf->t_type = t_type;
p_buf->data = data;
p_buf->param = param;
p_buf->p_data = p_data;
p_buf->rpt_id = rpt_id;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_HhSetReport
**
** Description send SET_REPORT to device.
**
** Parameter dev_handle: device handle
** r_type: report type, could be BTA_HH_RPTT_OUTPUT or
** BTA_HH_RPTT_FEATURE.
** Returns void
**
*******************************************************************************/
void BTA_HhSetReport(UINT8 dev_handle, tBTA_HH_RPT_TYPE r_type, BT_HDR *p_data)
{
bta_hh_snd_write_dev(dev_handle, HID_TRANS_SET_REPORT, r_type, 0, 0, p_data);
}
/*******************************************************************************
**
** Function BTA_HhGetReport
**
** Description Send a GET_REPORT to HID device.
**
** Returns void
**
*******************************************************************************/
void BTA_HhGetReport(UINT8 dev_handle, tBTA_HH_RPT_TYPE r_type, UINT8 rpt_id, UINT16 buf_size)
{
UINT8 param = (buf_size) ? (r_type | 0x08) : r_type;
bta_hh_snd_write_dev(dev_handle, HID_TRANS_GET_REPORT, param,
buf_size, rpt_id, NULL);
}
/*******************************************************************************
**
** Function BTA_HhSetProtoMode
**
** Description This function set the protocol mode at specified HID handle
**
** Returns void
**
*******************************************************************************/
void BTA_HhSetProtoMode(UINT8 dev_handle, tBTA_HH_PROTO_MODE p_type)
{
bta_hh_snd_write_dev(dev_handle, HID_TRANS_SET_PROTOCOL, (UINT8)p_type,
0, 0, NULL);
}
/*******************************************************************************
**
** Function BTA_HhGetProtoMode
**
** Description This function get protocol mode information.
**
** Returns void
**
*******************************************************************************/
void BTA_HhGetProtoMode(UINT8 dev_handle)
{
bta_hh_snd_write_dev(dev_handle, HID_TRANS_GET_PROTOCOL, 0, 0, 0, NULL);
}
/*******************************************************************************
**
** Function BTA_HhSetIdle
**
** Description send SET_IDLE to device.
**
** Returns void
**
*******************************************************************************/
void BTA_HhSetIdle(UINT8 dev_handle, UINT16 idle_rate)
{
bta_hh_snd_write_dev(dev_handle, HID_TRANS_SET_IDLE, 0, idle_rate, 0, NULL);
}
/*******************************************************************************
**
** Function BTA_HhGetIdle
**
** Description Send a GET_IDLE from HID device.
**
** Returns void
**
*******************************************************************************/
void BTA_HhGetIdle(UINT8 dev_handle)
{
bta_hh_snd_write_dev(dev_handle, HID_TRANS_GET_IDLE, 0, 0, 0, NULL);
}
/*******************************************************************************
**
** Function BTA_HhSendCtrl
**
** Description Send a control command to HID device.
**
** Returns void
**
*******************************************************************************/
void BTA_HhSendCtrl(UINT8 dev_handle, tBTA_HH_TRANS_CTRL_TYPE c_type)
{
bta_hh_snd_write_dev(dev_handle, HID_TRANS_CONTROL, (UINT8)c_type, 0, 0, NULL);
}
/*******************************************************************************
**
** Function BTA_HhSendData
**
** Description This function send DATA transaction to HID device.
**
** Parameter dev_handle: device handle
** dev_bda: remote device address
** p_data: data to be sent in the DATA transaction; or
** the data to be write into the Output Report of a LE HID
** device. The report is identified the report ID which is
** the value of the byte (UINT8 *)(p_buf + 1) + p_buf->offset.
** p_data->layer_specific needs to be set to the report type,
** it can be OUTPUT report, or FEATURE report.
**
** Returns void
**
*******************************************************************************/
void BTA_HhSendData(UINT8 dev_handle, BD_ADDR dev_bda, BT_HDR *p_data)
{
UNUSED(dev_bda);
#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
if (p_data->layer_specific != BTA_HH_RPTT_OUTPUT) {
APPL_TRACE_ERROR("ERROR! Wrong report type! Write Command only valid for output report!");
return;
}
#endif
bta_hh_snd_write_dev(dev_handle, HID_TRANS_DATA, (UINT8)p_data->layer_specific, 0, 0, p_data);
}
/*******************************************************************************
**
** Function BTA_HhGetDscpInfo
**
** Description Get HID device report descriptor
**
** Returns void
**
*******************************************************************************/
void BTA_HhGetDscpInfo(UINT8 dev_handle)
{
BT_HDR *p_buf;
if ((p_buf = (BT_HDR *)osi_malloc((UINT16)sizeof(BT_HDR))) != NULL) {
memset(p_buf, 0, sizeof(BT_HDR));
p_buf->event = BTA_HH_API_GET_DSCP_EVT;
p_buf->layer_specific = (UINT16) dev_handle;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_HhAddDev
**
** Description Add a virtually cabled device into HID-Host device list
** to manage and assign a device handle for future API call,
** host applciation call this API at start-up to initialize its
** virtually cabled devices.
**
** Returns void
**
*******************************************************************************/
void BTA_HhAddDev(BD_ADDR bda, tBTA_HH_ATTR_MASK attr_mask, UINT8 sub_class,
UINT8 app_id, tBTA_HH_DEV_DSCP_INFO dscp_info)
{
tBTA_HH_MAINT_DEV *p_buf;
UINT16 len = sizeof(tBTA_HH_MAINT_DEV) + dscp_info.descriptor.dl_len;
p_buf = (tBTA_HH_MAINT_DEV *)osi_malloc(len);
if (p_buf != NULL) {
memset(p_buf, 0, sizeof(tBTA_HH_MAINT_DEV));
p_buf->hdr.event = BTA_HH_API_MAINT_DEV_EVT;
p_buf->sub_event = BTA_HH_ADD_DEV_EVT;
p_buf->hdr.layer_specific = BTA_HH_INVALID_HANDLE;
p_buf->attr_mask = (UINT16) attr_mask;
p_buf->sub_class = sub_class;
p_buf->app_id = app_id;
bdcpy(p_buf->bda, bda);
memcpy(&p_buf->dscp_info, &dscp_info, sizeof(tBTA_HH_DEV_DSCP_INFO));
if ( dscp_info.descriptor.dl_len != 0 && dscp_info.descriptor.dsc_list) {
p_buf->dscp_info.descriptor.dl_len = dscp_info.descriptor.dl_len;
p_buf->dscp_info.descriptor.dsc_list = (UINT8 *)(p_buf + 1);
memcpy(p_buf->dscp_info.descriptor.dsc_list, dscp_info.descriptor.dsc_list, dscp_info.descriptor.dl_len);
} else {
p_buf->dscp_info.descriptor.dsc_list = NULL;
p_buf->dscp_info.descriptor.dl_len = 0;
}
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_HhRemoveDev
**
** Description Remove a device from the HID host devices list.
**
** Returns void
**
*******************************************************************************/
void BTA_HhRemoveDev(UINT8 dev_handle )
{
tBTA_HH_MAINT_DEV *p_buf;
p_buf = (tBTA_HH_MAINT_DEV *)osi_malloc((UINT16)sizeof(tBTA_HH_MAINT_DEV));
if (p_buf != NULL) {
memset(p_buf, 0, sizeof(tBTA_HH_MAINT_DEV));
p_buf->hdr.event = BTA_HH_API_MAINT_DEV_EVT;
p_buf->sub_event = BTA_HH_RMV_DEV_EVT;
p_buf->hdr.layer_specific = (UINT16) dev_handle;
bta_sys_sendmsg(p_buf);
}
}
#if BTA_HH_LE_INCLUDED == TRUE
/*******************************************************************************
**
** Function BTA_HhUpdateLeScanParam
**
** Description Update the scan paramteters if connected to a LE hid device as
** report host.
**
** Returns void
**
*******************************************************************************/
void BTA_HhUpdateLeScanParam(UINT8 dev_handle, UINT16 scan_int, UINT16 scan_win)
{
tBTA_HH_SCPP_UPDATE *p_buf;
p_buf = (tBTA_HH_SCPP_UPDATE *)osi_malloc((UINT16)sizeof(tBTA_HH_SCPP_UPDATE));
if (p_buf != NULL) {
memset(p_buf, 0, sizeof(tBTA_HH_SCPP_UPDATE));
p_buf->hdr.event = BTA_HH_API_SCPP_UPDATE_EVT;
p_buf->hdr.layer_specific = (UINT16) dev_handle;
p_buf->scan_int = scan_int;
p_buf->scan_win = scan_win;
bta_sys_sendmsg(p_buf);
}
}
#endif
/*******************************************************************************/
/* Utility Function */
/*******************************************************************************/
/*******************************************************************************
**
** Function BTA_HhParseBootRpt
**
** Description This utility function parse a boot mode report.
** For keyboard report, report data will carry the keycode max
** up to 6 key press in one report. Application need to convert
** the keycode into keypress character according to keyboard
** language.
**
** Returns void
**
*******************************************************************************/
void BTA_HhParseBootRpt(tBTA_HH_BOOT_RPT *p_data, UINT8 *p_report,
UINT16 report_len)
{
p_data->dev_type = BTA_HH_DEVT_UNKNOWN;
if (p_report) {
/* first byte is report ID */
switch (p_report[0]) {
case BTA_HH_KEYBD_RPT_ID: /* key board report ID */
p_data->dev_type = p_report[0];
bta_hh_parse_keybd_rpt(p_data, p_report + 1, (UINT16)(report_len - 1));
break;
case BTA_HH_MOUSE_RPT_ID: /* mouse report ID */
p_data->dev_type = p_report[0];
bta_hh_parse_mice_rpt(p_data, p_report + 1, (UINT16)(report_len - 1));
break;
default:
APPL_TRACE_DEBUG("Unknown boot report: %d", p_report[0]);;
break;
}
}
return;
}
#endif /* BTA_HH_INCLUDED */
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