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;
69 /* register with BTA system manager */
70 bta_sys_register(BTA_ID_HH, &bta_hh_reg);
72 LOG_INFO(LOG_TAG, "%s sec_mask:0x%x p_cback:%p", __func__, sec_mask, p_cback);
73 p_buf = (tBTA_HH_API_ENABLE *)GKI_getbuf((UINT16)sizeof(tBTA_HH_API_ENABLE));
77 memset(p_buf, 0, sizeof(tBTA_HH_API_ENABLE));
79 p_buf->hdr.event = BTA_HH_API_ENABLE_EVT;
80 p_buf->p_cback = p_cback;
81 p_buf->sec_mask = sec_mask;
83 bta_sys_sendmsg(p_buf);
87 /*******************************************************************************
89 ** Function BTA_HhDisable
91 ** Description Disable the HID host. If the server is currently
92 ** connected, the connection will be closed.
96 *******************************************************************************/
97 void BTA_HhDisable(void)
101 bta_sys_deregister(BTA_ID_HH);
102 if ((p_buf = (BT_HDR *)GKI_getbuf(sizeof(BT_HDR))) != NULL)
104 p_buf->event = BTA_HH_API_DISABLE_EVT;
105 bta_sys_sendmsg(p_buf);
109 /*******************************************************************************
111 ** Function BTA_HhClose
113 ** Description Disconnect a connection.
117 *******************************************************************************/
118 void BTA_HhClose(UINT8 dev_handle)
122 if ((p_buf = (BT_HDR *)GKI_getbuf((UINT16)sizeof(BT_HDR))) != NULL)
124 memset(p_buf, 0, sizeof(BT_HDR));
125 p_buf->event = BTA_HH_API_CLOSE_EVT;
126 p_buf->layer_specific = (UINT16) dev_handle;
128 bta_sys_sendmsg(p_buf);
132 /*******************************************************************************
134 ** Function BTA_HhOpen
136 ** Description Connect to a device of specified BD address in specified
137 ** protocol mode and security level.
141 *******************************************************************************/
142 void BTA_HhOpen(BD_ADDR dev_bda, tBTA_HH_PROTO_MODE mode, tBTA_SEC sec_mask)
144 tBTA_HH_API_CONN *p_buf;
146 p_buf = (tBTA_HH_API_CONN *)GKI_getbuf((UINT16)sizeof(tBTA_HH_API_CONN));
150 memset((void *)p_buf, 0, sizeof(tBTA_HH_API_CONN));
152 p_buf->hdr.event = BTA_HH_API_OPEN_EVT;
153 p_buf->hdr.layer_specific = BTA_HH_INVALID_HANDLE;
154 p_buf->sec_mask = sec_mask;
156 bdcpy(p_buf->bd_addr, dev_bda);
158 bta_sys_sendmsg((void *)p_buf);
162 APPL_TRACE_ERROR("No resource to send HID host Connect request.");
166 /*******************************************************************************
168 ** Function bta_hh_snd_write_dev
170 *******************************************************************************/
171 static void bta_hh_snd_write_dev(UINT8 dev_handle, UINT8 t_type, UINT8 param,
172 UINT16 data, UINT8 rpt_id, BT_HDR *p_data)
174 tBTA_HH_CMD_DATA *p_buf;
175 UINT16 len = (UINT16) (sizeof(tBTA_HH_CMD_DATA) );
177 if ((p_buf = (tBTA_HH_CMD_DATA *)GKI_getbuf(len))!= NULL)
179 memset(p_buf, 0, sizeof(tBTA_HH_CMD_DATA));
181 p_buf->hdr.event = BTA_HH_API_WRITE_DEV_EVT;
182 p_buf->hdr.layer_specific = (UINT16) dev_handle;
183 p_buf->t_type = t_type;
185 p_buf->param = param;
186 p_buf->p_data = p_data;
187 p_buf->rpt_id = rpt_id;
189 bta_sys_sendmsg(p_buf);
192 /*******************************************************************************
194 ** Function BTA_HhSetReport
196 ** Description send SET_REPORT to device.
198 ** Parameter dev_handle: device handle
199 ** r_type: report type, could be BTA_HH_RPTT_OUTPUT or
200 ** BTA_HH_RPTT_FEATURE.
203 *******************************************************************************/
204 void BTA_HhSetReport(UINT8 dev_handle, tBTA_HH_RPT_TYPE r_type, BT_HDR *p_data)
206 bta_hh_snd_write_dev(dev_handle, HID_TRANS_SET_REPORT, r_type, 0, 0, p_data);
208 /*******************************************************************************
210 ** Function BTA_HhGetReport
212 ** Description Send a GET_REPORT to HID device.
216 *******************************************************************************/
217 void BTA_HhGetReport(UINT8 dev_handle, tBTA_HH_RPT_TYPE r_type, UINT8 rpt_id, UINT16 buf_size)
219 UINT8 param = (buf_size) ? (r_type | 0x08) : r_type;
221 bta_hh_snd_write_dev(dev_handle, HID_TRANS_GET_REPORT, param,
222 buf_size, rpt_id, NULL);
224 /*******************************************************************************
226 ** Function BTA_HhSetProtoMode
228 ** Description This function set the protocol mode at specified HID handle
232 *******************************************************************************/
233 void BTA_HhSetProtoMode(UINT8 dev_handle, tBTA_HH_PROTO_MODE p_type)
235 bta_hh_snd_write_dev(dev_handle, HID_TRANS_SET_PROTOCOL, (UINT8)p_type,
238 /*******************************************************************************
240 ** Function BTA_HhGetProtoMode
242 ** Description This function get protocol mode information.
246 *******************************************************************************/
247 void BTA_HhGetProtoMode(UINT8 dev_handle)
249 bta_hh_snd_write_dev(dev_handle, HID_TRANS_GET_PROTOCOL, 0, 0, 0, NULL);
251 /*******************************************************************************
253 ** Function BTA_HhSetIdle
255 ** Description send SET_IDLE to device.
259 *******************************************************************************/
260 void BTA_HhSetIdle(UINT8 dev_handle, UINT16 idle_rate)
262 bta_hh_snd_write_dev(dev_handle, HID_TRANS_SET_IDLE, 0, idle_rate, 0, NULL);
265 /*******************************************************************************
267 ** Function BTA_HhGetIdle
269 ** Description Send a GET_IDLE from HID device.
273 *******************************************************************************/
274 void BTA_HhGetIdle(UINT8 dev_handle)
276 bta_hh_snd_write_dev(dev_handle, HID_TRANS_GET_IDLE, 0, 0, 0, NULL);
278 /*******************************************************************************
280 ** Function BTA_HhSendCtrl
282 ** Description Send a control command to HID device.
286 *******************************************************************************/
287 void BTA_HhSendCtrl(UINT8 dev_handle, tBTA_HH_TRANS_CTRL_TYPE c_type)
289 bta_hh_snd_write_dev(dev_handle, HID_TRANS_CONTROL, (UINT8)c_type, 0, 0, NULL);
291 /*******************************************************************************
293 ** Function BTA_HhSendData
295 ** Description This function send DATA transaction to HID device.
297 ** Parameter dev_handle: device handle
298 ** dev_bda: remote device address
299 ** p_data: data to be sent in the DATA transaction; or
300 ** the data to be write into the Output Report of a LE HID
301 ** device. The report is identified the report ID which is
302 ** the value of the byte (UINT8 *)(p_buf + 1) + p_buf->offset.
303 ** p_data->layer_specific needs to be set to the report type,
304 ** it can be OUTPUT report, or FEATURE report.
308 *******************************************************************************/
309 void BTA_HhSendData(UINT8 dev_handle, BD_ADDR dev_bda, BT_HDR *p_data)
312 #if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
313 if (p_data->layer_specific != BTA_HH_RPTT_OUTPUT)
315 APPL_TRACE_ERROR("ERROR! Wrong report type! Write Command only valid for output report!");
319 bta_hh_snd_write_dev(dev_handle, HID_TRANS_DATA, (UINT8)p_data->layer_specific, 0, 0, p_data);
322 /*******************************************************************************
324 ** Function BTA_HhGetDscpInfo
326 ** Description Get HID device report descriptor
330 *******************************************************************************/
331 void BTA_HhGetDscpInfo(UINT8 dev_handle)
335 if ((p_buf = (BT_HDR *)GKI_getbuf((UINT16)sizeof(BT_HDR))) != NULL)
337 memset(p_buf, 0, sizeof(BT_HDR));
338 p_buf->event = BTA_HH_API_GET_DSCP_EVT;
339 p_buf->layer_specific = (UINT16) dev_handle;
341 bta_sys_sendmsg(p_buf);
345 /*******************************************************************************
347 ** Function BTA_HhAddDev
349 ** Description Add a virtually cabled device into HID-Host device list
350 ** to manage and assign a device handle for future API call,
351 ** host applciation call this API at start-up to initialize its
352 ** virtually cabled devices.
356 *******************************************************************************/
357 void BTA_HhAddDev(BD_ADDR bda, tBTA_HH_ATTR_MASK attr_mask, UINT8 sub_class,
358 UINT8 app_id, tBTA_HH_DEV_DSCP_INFO dscp_info)
360 tBTA_HH_MAINT_DEV *p_buf;
361 UINT16 len = sizeof(tBTA_HH_MAINT_DEV) + dscp_info.descriptor.dl_len;
363 p_buf = (tBTA_HH_MAINT_DEV *)GKI_getbuf(len);
367 memset(p_buf, 0, sizeof(tBTA_HH_MAINT_DEV));
369 p_buf->hdr.event = BTA_HH_API_MAINT_DEV_EVT;
370 p_buf->sub_event = BTA_HH_ADD_DEV_EVT;
371 p_buf->hdr.layer_specific = BTA_HH_INVALID_HANDLE;
373 p_buf->attr_mask = (UINT16) attr_mask;
374 p_buf->sub_class = sub_class;
375 p_buf->app_id = app_id;
376 bdcpy(p_buf->bda, bda);
378 memcpy(&p_buf->dscp_info, &dscp_info, sizeof(tBTA_HH_DEV_DSCP_INFO));
379 if ( dscp_info.descriptor.dl_len != 0 && dscp_info.descriptor.dsc_list)
381 p_buf->dscp_info.descriptor.dl_len = dscp_info.descriptor.dl_len;
382 p_buf->dscp_info.descriptor.dsc_list = (UINT8 *)(p_buf + 1);
383 memcpy(p_buf->dscp_info.descriptor.dsc_list, dscp_info.descriptor.dsc_list, dscp_info.descriptor.dl_len);
387 p_buf->dscp_info.descriptor.dsc_list = NULL;
388 p_buf->dscp_info.descriptor.dl_len = 0;
391 bta_sys_sendmsg(p_buf);
394 /*******************************************************************************
396 ** Function BTA_HhRemoveDev
398 ** Description Remove a device from the HID host devices list.
402 *******************************************************************************/
403 void BTA_HhRemoveDev(UINT8 dev_handle )
405 tBTA_HH_MAINT_DEV *p_buf;
407 p_buf = (tBTA_HH_MAINT_DEV *)GKI_getbuf((UINT16)sizeof(tBTA_HH_MAINT_DEV));
411 memset(p_buf, 0, sizeof(tBTA_HH_MAINT_DEV));
413 p_buf->hdr.event = BTA_HH_API_MAINT_DEV_EVT;
414 p_buf->sub_event = BTA_HH_RMV_DEV_EVT;
415 p_buf->hdr.layer_specific = (UINT16) dev_handle;
417 bta_sys_sendmsg(p_buf);
420 #if BTA_HH_LE_INCLUDED == TRUE
422 /*******************************************************************************
424 ** Function BTA_HhUpdateLeScanParam
426 ** Description Update the scan paramteters if connected to a LE hid device as
431 *******************************************************************************/
432 void BTA_HhUpdateLeScanParam(UINT8 dev_handle, UINT16 scan_int, UINT16 scan_win)
434 tBTA_HH_SCPP_UPDATE *p_buf;
436 p_buf = (tBTA_HH_SCPP_UPDATE *)GKI_getbuf((UINT16)sizeof(tBTA_HH_SCPP_UPDATE));
440 memset(p_buf, 0, sizeof(tBTA_HH_SCPP_UPDATE));
442 p_buf->hdr.event = BTA_HH_API_SCPP_UPDATE_EVT;
443 p_buf->hdr.layer_specific = (UINT16) dev_handle;
444 p_buf->scan_int = scan_int;
445 p_buf->scan_win = scan_win;
447 bta_sys_sendmsg(p_buf);
451 /*******************************************************************************/
452 /* Utility Function */
453 /*******************************************************************************/
455 /*******************************************************************************
457 ** Function BTA_HhParseBootRpt
459 ** Description This utility function parse a boot mode report.
460 ** For keyboard report, report data will carry the keycode max
461 ** up to 6 key press in one report. Application need to convert
462 ** the keycode into keypress character according to keyboard
467 *******************************************************************************/
468 void BTA_HhParseBootRpt(tBTA_HH_BOOT_RPT *p_data, UINT8 *p_report,
471 p_data->dev_type = BTA_HH_DEVT_UNKNOWN;
475 /* first byte is report ID */
478 case BTA_HH_KEYBD_RPT_ID: /* key board report ID */
479 p_data->dev_type = p_report[0];
480 bta_hh_parse_keybd_rpt(p_data, p_report + 1, (UINT16)(report_len -1));
483 case BTA_HH_MOUSE_RPT_ID: /* mouse report ID */
484 p_data->dev_type = p_report[0];
485 bta_hh_parse_mice_rpt(p_data, p_report + 1, (UINT16)(report_len - 1));
489 APPL_TRACE_DEBUG("Unknown boot report: %d", p_report[0]);;
497 #endif /* BTA_HH_INCLUDED */