1 /******************************************************************************
3 * Copyright (C) 2005-2012 Broadcom Corporation
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 ******************************************************************************/
19 /******************************************************************************
21 * This file contains the HID HOST API in the subsystem of BTA.
23 ******************************************************************************/
25 #define LOG_TAG "bt_bta_hh"
27 #include "bta_hh_api.h"
29 #include "bt_target.h"
31 #if defined(BTA_HH_INCLUDED) && (BTA_HH_INCLUDED == TRUE)
37 #include "bta_hh_int.h"
39 #include "osi/include/log.h"
42 /*****************************************************************************
44 *****************************************************************************/
46 static const tBTA_SYS_REG bta_hh_reg =
52 /*******************************************************************************
54 ** Function BTA_HhEnable
56 ** Description Enable the HID host. This function must be called before
57 ** any other functions in the HID host API are called. When the
58 ** enable operation is complete the callback function will be
59 ** called with BTA_HH_ENABLE_EVT.
64 *******************************************************************************/
65 void BTA_HhEnable(tBTA_SEC sec_mask, tBTA_HH_CBACK *p_cback)
67 tBTA_HH_API_ENABLE *p_buf =
68 (tBTA_HH_API_ENABLE *)osi_calloc(sizeof(tBTA_HH_API_ENABLE));
70 LOG_INFO(LOG_TAG, "%s sec_mask:0x%x p_cback:%p", __func__, sec_mask,
73 /* register with BTA system manager */
74 bta_sys_register(BTA_ID_HH, &bta_hh_reg);
76 p_buf->hdr.event = BTA_HH_API_ENABLE_EVT;
77 p_buf->p_cback = p_cback;
78 p_buf->sec_mask = sec_mask;
80 bta_sys_sendmsg(p_buf);
83 /*******************************************************************************
85 ** Function BTA_HhDisable
87 ** Description Disable the HID host. If the server is currently
88 ** connected, the connection will be closed.
92 *******************************************************************************/
93 void BTA_HhDisable(void)
95 BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
97 bta_sys_deregister(BTA_ID_HH);
98 p_buf->event = BTA_HH_API_DISABLE_EVT;
100 bta_sys_sendmsg(p_buf);
103 /*******************************************************************************
105 ** Function BTA_HhClose
107 ** Description Disconnect a connection.
111 *******************************************************************************/
112 void BTA_HhClose(UINT8 dev_handle)
114 BT_HDR *p_buf = (BT_HDR *)osi_calloc(sizeof(BT_HDR));
116 p_buf->event = BTA_HH_API_CLOSE_EVT;
117 p_buf->layer_specific = (UINT16)dev_handle;
119 bta_sys_sendmsg(p_buf);
122 /*******************************************************************************
124 ** Function BTA_HhOpen
126 ** Description Connect to a device of specified BD address in specified
127 ** protocol mode and security level.
131 *******************************************************************************/
132 void BTA_HhOpen(BD_ADDR dev_bda, tBTA_HH_PROTO_MODE mode, tBTA_SEC sec_mask)
134 tBTA_HH_API_CONN *p_buf =
135 (tBTA_HH_API_CONN *)osi_calloc(sizeof(tBTA_HH_API_CONN));
137 p_buf->hdr.event = BTA_HH_API_OPEN_EVT;
138 p_buf->hdr.layer_specific = BTA_HH_INVALID_HANDLE;
139 p_buf->sec_mask = sec_mask;
141 bdcpy(p_buf->bd_addr, dev_bda);
143 bta_sys_sendmsg((void *)p_buf);
146 /*******************************************************************************
148 ** Function bta_hh_snd_write_dev
150 *******************************************************************************/
151 static void bta_hh_snd_write_dev(UINT8 dev_handle, UINT8 t_type, UINT8 param,
152 UINT16 data, UINT8 rpt_id, BT_HDR *p_data)
154 tBTA_HH_CMD_DATA *p_buf =
155 (tBTA_HH_CMD_DATA *)osi_calloc(sizeof(tBTA_HH_CMD_DATA));
157 p_buf->hdr.event = BTA_HH_API_WRITE_DEV_EVT;
158 p_buf->hdr.layer_specific = (UINT16)dev_handle;
159 p_buf->t_type = t_type;
161 p_buf->param = param;
162 p_buf->p_data = p_data;
163 p_buf->rpt_id = rpt_id;
165 bta_sys_sendmsg(p_buf);
168 /*******************************************************************************
170 ** Function BTA_HhSetReport
172 ** Description send SET_REPORT to device.
174 ** Parameter dev_handle: device handle
175 ** r_type: report type, could be BTA_HH_RPTT_OUTPUT or
176 ** BTA_HH_RPTT_FEATURE.
179 *******************************************************************************/
180 void BTA_HhSetReport(UINT8 dev_handle, tBTA_HH_RPT_TYPE r_type, BT_HDR *p_data)
182 bta_hh_snd_write_dev(dev_handle, HID_TRANS_SET_REPORT, r_type, 0, 0, p_data);
184 /*******************************************************************************
186 ** Function BTA_HhGetReport
188 ** Description Send a GET_REPORT to HID device.
192 *******************************************************************************/
193 void BTA_HhGetReport(UINT8 dev_handle, tBTA_HH_RPT_TYPE r_type, UINT8 rpt_id, UINT16 buf_size)
195 UINT8 param = (buf_size) ? (r_type | 0x08) : r_type;
197 bta_hh_snd_write_dev(dev_handle, HID_TRANS_GET_REPORT, param,
198 buf_size, rpt_id, NULL);
200 /*******************************************************************************
202 ** Function BTA_HhSetProtoMode
204 ** Description This function set the protocol mode at specified HID handle
208 *******************************************************************************/
209 void BTA_HhSetProtoMode(UINT8 dev_handle, tBTA_HH_PROTO_MODE p_type)
211 bta_hh_snd_write_dev(dev_handle, HID_TRANS_SET_PROTOCOL, (UINT8)p_type,
214 /*******************************************************************************
216 ** Function BTA_HhGetProtoMode
218 ** Description This function get protocol mode information.
222 *******************************************************************************/
223 void BTA_HhGetProtoMode(UINT8 dev_handle)
225 bta_hh_snd_write_dev(dev_handle, HID_TRANS_GET_PROTOCOL, 0, 0, 0, NULL);
227 /*******************************************************************************
229 ** Function BTA_HhSetIdle
231 ** Description send SET_IDLE to device.
235 *******************************************************************************/
236 void BTA_HhSetIdle(UINT8 dev_handle, UINT16 idle_rate)
238 bta_hh_snd_write_dev(dev_handle, HID_TRANS_SET_IDLE, 0, idle_rate, 0, NULL);
241 /*******************************************************************************
243 ** Function BTA_HhGetIdle
245 ** Description Send a GET_IDLE from HID device.
249 *******************************************************************************/
250 void BTA_HhGetIdle(UINT8 dev_handle)
252 bta_hh_snd_write_dev(dev_handle, HID_TRANS_GET_IDLE, 0, 0, 0, NULL);
254 /*******************************************************************************
256 ** Function BTA_HhSendCtrl
258 ** Description Send a control command to HID device.
262 *******************************************************************************/
263 void BTA_HhSendCtrl(UINT8 dev_handle, tBTA_HH_TRANS_CTRL_TYPE c_type)
265 bta_hh_snd_write_dev(dev_handle, HID_TRANS_CONTROL, (UINT8)c_type, 0, 0, NULL);
267 /*******************************************************************************
269 ** Function BTA_HhSendData
271 ** Description This function send DATA transaction to HID device.
273 ** Parameter dev_handle: device handle
274 ** dev_bda: remote device address
275 ** p_data: data to be sent in the DATA transaction; or
276 ** the data to be write into the Output Report of a LE HID
277 ** device. The report is identified the report ID which is
278 ** the value of the byte (UINT8 *)(p_buf + 1) + p_buf->offset.
279 ** p_data->layer_specific needs to be set to the report type,
280 ** it can be OUTPUT report, or FEATURE report.
284 *******************************************************************************/
285 void BTA_HhSendData(UINT8 dev_handle, BD_ADDR dev_bda, BT_HDR *p_data)
288 #if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
289 if (p_data->layer_specific != BTA_HH_RPTT_OUTPUT)
291 APPL_TRACE_ERROR("ERROR! Wrong report type! Write Command only valid for output report!");
295 bta_hh_snd_write_dev(dev_handle, HID_TRANS_DATA, (UINT8)p_data->layer_specific, 0, 0, p_data);
298 /*******************************************************************************
300 ** Function BTA_HhGetDscpInfo
302 ** Description Get HID device report descriptor
306 *******************************************************************************/
307 void BTA_HhGetDscpInfo(UINT8 dev_handle)
309 BT_HDR *p_buf = (BT_HDR *)osi_calloc(sizeof(BT_HDR));
311 p_buf->event = BTA_HH_API_GET_DSCP_EVT;
312 p_buf->layer_specific = (UINT16)dev_handle;
314 bta_sys_sendmsg(p_buf);
317 /*******************************************************************************
319 ** Function BTA_HhAddDev
321 ** Description Add a virtually cabled device into HID-Host device list
322 ** to manage and assign a device handle for future API call,
323 ** host applciation call this API at start-up to initialize its
324 ** virtually cabled devices.
328 *******************************************************************************/
329 void BTA_HhAddDev(BD_ADDR bda, tBTA_HH_ATTR_MASK attr_mask, UINT8 sub_class,
330 UINT8 app_id, tBTA_HH_DEV_DSCP_INFO dscp_info)
332 size_t len = sizeof(tBTA_HH_MAINT_DEV) + dscp_info.descriptor.dl_len;
333 tBTA_HH_MAINT_DEV *p_buf = (tBTA_HH_MAINT_DEV *)osi_calloc(len);
335 p_buf->hdr.event = BTA_HH_API_MAINT_DEV_EVT;
336 p_buf->sub_event = BTA_HH_ADD_DEV_EVT;
337 p_buf->hdr.layer_specific = BTA_HH_INVALID_HANDLE;
339 p_buf->attr_mask = (UINT16) attr_mask;
340 p_buf->sub_class = sub_class;
341 p_buf->app_id = app_id;
342 bdcpy(p_buf->bda, bda);
344 memcpy(&p_buf->dscp_info, &dscp_info, sizeof(tBTA_HH_DEV_DSCP_INFO));
345 if ( dscp_info.descriptor.dl_len != 0 && dscp_info.descriptor.dsc_list) {
346 p_buf->dscp_info.descriptor.dl_len = dscp_info.descriptor.dl_len;
347 p_buf->dscp_info.descriptor.dsc_list = (UINT8 *)(p_buf + 1);
348 memcpy(p_buf->dscp_info.descriptor.dsc_list,
349 dscp_info.descriptor.dsc_list,
350 dscp_info.descriptor.dl_len);
352 p_buf->dscp_info.descriptor.dsc_list = NULL;
353 p_buf->dscp_info.descriptor.dl_len = 0;
356 bta_sys_sendmsg(p_buf);
359 /*******************************************************************************
361 ** Function BTA_HhRemoveDev
363 ** Description Remove a device from the HID host devices list.
367 *******************************************************************************/
368 void BTA_HhRemoveDev(UINT8 dev_handle )
370 tBTA_HH_MAINT_DEV *p_buf =
371 (tBTA_HH_MAINT_DEV *)osi_calloc(sizeof(tBTA_HH_MAINT_DEV));
373 p_buf->hdr.event = BTA_HH_API_MAINT_DEV_EVT;
374 p_buf->sub_event = BTA_HH_RMV_DEV_EVT;
375 p_buf->hdr.layer_specific = (UINT16)dev_handle;
377 bta_sys_sendmsg(p_buf);
380 #if BTA_HH_LE_INCLUDED == TRUE
382 /*******************************************************************************
384 ** Function BTA_HhUpdateLeScanParam
386 ** Description Update the scan paramteters if connected to a LE hid device as
391 *******************************************************************************/
392 void BTA_HhUpdateLeScanParam(UINT8 dev_handle, UINT16 scan_int, UINT16 scan_win)
394 tBTA_HH_SCPP_UPDATE *p_buf =
395 (tBTA_HH_SCPP_UPDATE *)osi_calloc(sizeof(tBTA_HH_SCPP_UPDATE));
397 p_buf->hdr.event = BTA_HH_API_SCPP_UPDATE_EVT;
398 p_buf->hdr.layer_specific = (UINT16)dev_handle;
399 p_buf->scan_int = scan_int;
400 p_buf->scan_win = scan_win;
402 bta_sys_sendmsg(p_buf);
406 /*******************************************************************************/
407 /* Utility Function */
408 /*******************************************************************************/
410 /*******************************************************************************
412 ** Function BTA_HhParseBootRpt
414 ** Description This utility function parse a boot mode report.
415 ** For keyboard report, report data will carry the keycode max
416 ** up to 6 key press in one report. Application need to convert
417 ** the keycode into keypress character according to keyboard
422 *******************************************************************************/
423 void BTA_HhParseBootRpt(tBTA_HH_BOOT_RPT *p_data, UINT8 *p_report,
426 p_data->dev_type = BTA_HH_DEVT_UNKNOWN;
430 /* first byte is report ID */
433 case BTA_HH_KEYBD_RPT_ID: /* key board report ID */
434 p_data->dev_type = p_report[0];
435 bta_hh_parse_keybd_rpt(p_data, p_report + 1, (UINT16)(report_len -1));
438 case BTA_HH_MOUSE_RPT_ID: /* mouse report ID */
439 p_data->dev_type = p_report[0];
440 bta_hh_parse_mice_rpt(p_data, p_report + 1, (UINT16)(report_len - 1));
444 APPL_TRACE_DEBUG("Unknown boot report: %d", p_report[0]);;
452 #endif /* BTA_HH_INCLUDED */