1 /******************************************************************************
2 *
3 * Copyright (C) 2005-2012 Broadcom Corporation
4 *
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:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
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.
16 *
17 ******************************************************************************/
18
19 /******************************************************************************
20 *
21 * This file contains the HID HOST API in the subsystem of BTA.
22 *
23 ******************************************************************************/
24
25 #define LOG_TAG "bt_bta_hh"
26
27 #include "bta_hh_api.h"
28
29 #include "bt_target.h"
30
31 #if defined(BTA_HH_INCLUDED) && (BTA_HH_INCLUDED == TRUE)
32
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <string.h>
36
37 #include "bta_hh_int.h"
38 #include "l2c_api.h"
39 #include "osi/include/log.h"
40 #include "utl.h"
41
42 /*****************************************************************************
43 ** Constants
44 *****************************************************************************/
45
46 static const tBTA_SYS_REG bta_hh_reg =
47 {
48 bta_hh_hdl_event,
49 BTA_HhDisable
50 };
51
52 /*******************************************************************************
53 **
54 ** Function BTA_HhEnable
55 **
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.
60 **
61 **
62 ** Returns void
63 **
64 *******************************************************************************/
BTA_HhEnable(tBTA_SEC sec_mask,tBTA_HH_CBACK * p_cback)65 void BTA_HhEnable(tBTA_SEC sec_mask, tBTA_HH_CBACK *p_cback)
66 {
67 tBTA_HH_API_ENABLE *p_buf =
68 (tBTA_HH_API_ENABLE *)osi_calloc(sizeof(tBTA_HH_API_ENABLE));
69
70 LOG_INFO(LOG_TAG, "%s sec_mask:0x%x p_cback:%p", __func__, sec_mask,
71 p_cback);
72
73 /* register with BTA system manager */
74 bta_sys_register(BTA_ID_HH, &bta_hh_reg);
75
76 p_buf->hdr.event = BTA_HH_API_ENABLE_EVT;
77 p_buf->p_cback = p_cback;
78 p_buf->sec_mask = sec_mask;
79
80 bta_sys_sendmsg(p_buf);
81 }
82
83 /*******************************************************************************
84 **
85 ** Function BTA_HhDisable
86 **
87 ** Description Disable the HID host. If the server is currently
88 ** connected, the connection will be closed.
89 **
90 ** Returns void
91 **
92 *******************************************************************************/
BTA_HhDisable(void)93 void BTA_HhDisable(void)
94 {
95 BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
96
97 bta_sys_deregister(BTA_ID_HH);
98 p_buf->event = BTA_HH_API_DISABLE_EVT;
99
100 bta_sys_sendmsg(p_buf);
101 }
102
103 /*******************************************************************************
104 **
105 ** Function BTA_HhClose
106 **
107 ** Description Disconnect a connection.
108 **
109 ** Returns void
110 **
111 *******************************************************************************/
BTA_HhClose(UINT8 dev_handle)112 void BTA_HhClose(UINT8 dev_handle)
113 {
114 BT_HDR *p_buf = (BT_HDR *)osi_calloc(sizeof(BT_HDR));
115
116 p_buf->event = BTA_HH_API_CLOSE_EVT;
117 p_buf->layer_specific = (UINT16)dev_handle;
118
119 bta_sys_sendmsg(p_buf);
120 }
121
122 /*******************************************************************************
123 **
124 ** Function BTA_HhOpen
125 **
126 ** Description Connect to a device of specified BD address in specified
127 ** protocol mode and security level.
128 **
129 ** Returns void
130 **
131 *******************************************************************************/
BTA_HhOpen(BD_ADDR dev_bda,tBTA_HH_PROTO_MODE mode,tBTA_SEC sec_mask)132 void BTA_HhOpen(BD_ADDR dev_bda, tBTA_HH_PROTO_MODE mode, tBTA_SEC sec_mask)
133 {
134 tBTA_HH_API_CONN *p_buf =
135 (tBTA_HH_API_CONN *)osi_calloc(sizeof(tBTA_HH_API_CONN));
136
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;
140 p_buf->mode = mode;
141 bdcpy(p_buf->bd_addr, dev_bda);
142
143 bta_sys_sendmsg((void *)p_buf);
144 }
145
146 /*******************************************************************************
147 **
148 ** Function bta_hh_snd_write_dev
149 **
150 *******************************************************************************/
bta_hh_snd_write_dev(UINT8 dev_handle,UINT8 t_type,UINT8 param,UINT16 data,UINT8 rpt_id,BT_HDR * p_data)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)
153 {
154 tBTA_HH_CMD_DATA *p_buf =
155 (tBTA_HH_CMD_DATA *)osi_calloc(sizeof(tBTA_HH_CMD_DATA));
156
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;
160 p_buf->data = data;
161 p_buf->param = param;
162 p_buf->p_data = p_data;
163 p_buf->rpt_id = rpt_id;
164
165 bta_sys_sendmsg(p_buf);
166 }
167
168 /*******************************************************************************
169 **
170 ** Function BTA_HhSetReport
171 **
172 ** Description send SET_REPORT to device.
173 **
174 ** Parameter dev_handle: device handle
175 ** r_type: report type, could be BTA_HH_RPTT_OUTPUT or
176 ** BTA_HH_RPTT_FEATURE.
177 ** Returns void
178 **
179 *******************************************************************************/
BTA_HhSetReport(UINT8 dev_handle,tBTA_HH_RPT_TYPE r_type,BT_HDR * p_data)180 void BTA_HhSetReport(UINT8 dev_handle, tBTA_HH_RPT_TYPE r_type, BT_HDR *p_data)
181 {
182 bta_hh_snd_write_dev(dev_handle, HID_TRANS_SET_REPORT, r_type, 0, 0, p_data);
183 }
184 /*******************************************************************************
185 **
186 ** Function BTA_HhGetReport
187 **
188 ** Description Send a GET_REPORT to HID device.
189 **
190 ** Returns void
191 **
192 *******************************************************************************/
BTA_HhGetReport(UINT8 dev_handle,tBTA_HH_RPT_TYPE r_type,UINT8 rpt_id,UINT16 buf_size)193 void BTA_HhGetReport(UINT8 dev_handle, tBTA_HH_RPT_TYPE r_type, UINT8 rpt_id, UINT16 buf_size)
194 {
195 UINT8 param = (buf_size) ? (r_type | 0x08) : r_type;
196
197 bta_hh_snd_write_dev(dev_handle, HID_TRANS_GET_REPORT, param,
198 buf_size, rpt_id, NULL);
199 }
200 /*******************************************************************************
201 **
202 ** Function BTA_HhSetProtoMode
203 **
204 ** Description This function set the protocol mode at specified HID handle
205 **
206 ** Returns void
207 **
208 *******************************************************************************/
BTA_HhSetProtoMode(UINT8 dev_handle,tBTA_HH_PROTO_MODE p_type)209 void BTA_HhSetProtoMode(UINT8 dev_handle, tBTA_HH_PROTO_MODE p_type)
210 {
211 bta_hh_snd_write_dev(dev_handle, HID_TRANS_SET_PROTOCOL, (UINT8)p_type,
212 0, 0, NULL);
213 }
214 /*******************************************************************************
215 **
216 ** Function BTA_HhGetProtoMode
217 **
218 ** Description This function get protocol mode information.
219 **
220 ** Returns void
221 **
222 *******************************************************************************/
BTA_HhGetProtoMode(UINT8 dev_handle)223 void BTA_HhGetProtoMode(UINT8 dev_handle)
224 {
225 bta_hh_snd_write_dev(dev_handle, HID_TRANS_GET_PROTOCOL, 0, 0, 0, NULL);
226 }
227 /*******************************************************************************
228 **
229 ** Function BTA_HhSetIdle
230 **
231 ** Description send SET_IDLE to device.
232 **
233 ** Returns void
234 **
235 *******************************************************************************/
BTA_HhSetIdle(UINT8 dev_handle,UINT16 idle_rate)236 void BTA_HhSetIdle(UINT8 dev_handle, UINT16 idle_rate)
237 {
238 bta_hh_snd_write_dev(dev_handle, HID_TRANS_SET_IDLE, 0, idle_rate, 0, NULL);
239 }
240
241 /*******************************************************************************
242 **
243 ** Function BTA_HhGetIdle
244 **
245 ** Description Send a GET_IDLE from HID device.
246 **
247 ** Returns void
248 **
249 *******************************************************************************/
BTA_HhGetIdle(UINT8 dev_handle)250 void BTA_HhGetIdle(UINT8 dev_handle)
251 {
252 bta_hh_snd_write_dev(dev_handle, HID_TRANS_GET_IDLE, 0, 0, 0, NULL);
253 }
254 /*******************************************************************************
255 **
256 ** Function BTA_HhSendCtrl
257 **
258 ** Description Send a control command to HID device.
259 **
260 ** Returns void
261 **
262 *******************************************************************************/
BTA_HhSendCtrl(UINT8 dev_handle,tBTA_HH_TRANS_CTRL_TYPE c_type)263 void BTA_HhSendCtrl(UINT8 dev_handle, tBTA_HH_TRANS_CTRL_TYPE c_type)
264 {
265 bta_hh_snd_write_dev(dev_handle, HID_TRANS_CONTROL, (UINT8)c_type, 0, 0, NULL);
266 }
267 /*******************************************************************************
268 **
269 ** Function BTA_HhSendData
270 **
271 ** Description This function send DATA transaction to HID device.
272 **
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.
281 **
282 ** Returns void
283 **
284 *******************************************************************************/
BTA_HhSendData(UINT8 dev_handle,BD_ADDR dev_bda,BT_HDR * p_data)285 void BTA_HhSendData(UINT8 dev_handle, BD_ADDR dev_bda, BT_HDR *p_data)
286 {
287 UNUSED(dev_bda);
288 #if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
289 if (p_data->layer_specific != BTA_HH_RPTT_OUTPUT)
290 {
291 APPL_TRACE_ERROR("ERROR! Wrong report type! Write Command only valid for output report!");
292 return;
293 }
294 #endif
295 bta_hh_snd_write_dev(dev_handle, HID_TRANS_DATA, (UINT8)p_data->layer_specific, 0, 0, p_data);
296 }
297
298 /*******************************************************************************
299 **
300 ** Function BTA_HhGetDscpInfo
301 **
302 ** Description Get HID device report descriptor
303 **
304 ** Returns void
305 **
306 *******************************************************************************/
BTA_HhGetDscpInfo(UINT8 dev_handle)307 void BTA_HhGetDscpInfo(UINT8 dev_handle)
308 {
309 BT_HDR *p_buf = (BT_HDR *)osi_calloc(sizeof(BT_HDR));
310
311 p_buf->event = BTA_HH_API_GET_DSCP_EVT;
312 p_buf->layer_specific = (UINT16)dev_handle;
313
314 bta_sys_sendmsg(p_buf);
315 }
316
317 /*******************************************************************************
318 **
319 ** Function BTA_HhAddDev
320 **
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.
325 **
326 ** Returns void
327 **
328 *******************************************************************************/
BTA_HhAddDev(BD_ADDR bda,tBTA_HH_ATTR_MASK attr_mask,UINT8 sub_class,UINT8 app_id,tBTA_HH_DEV_DSCP_INFO dscp_info)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)
331 {
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);
334
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;
338
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);
343
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);
351 } else {
352 p_buf->dscp_info.descriptor.dsc_list = NULL;
353 p_buf->dscp_info.descriptor.dl_len = 0;
354 }
355
356 bta_sys_sendmsg(p_buf);
357 }
358
359 /*******************************************************************************
360 **
361 ** Function BTA_HhRemoveDev
362 **
363 ** Description Remove a device from the HID host devices list.
364 **
365 ** Returns void
366 **
367 *******************************************************************************/
BTA_HhRemoveDev(UINT8 dev_handle)368 void BTA_HhRemoveDev(UINT8 dev_handle )
369 {
370 tBTA_HH_MAINT_DEV *p_buf =
371 (tBTA_HH_MAINT_DEV *)osi_calloc(sizeof(tBTA_HH_MAINT_DEV));
372
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;
376
377 bta_sys_sendmsg(p_buf);
378 }
379
380 #if BTA_HH_LE_INCLUDED == TRUE
381
382 /*******************************************************************************
383 **
384 ** Function BTA_HhUpdateLeScanParam
385 **
386 ** Description Update the scan paramteters if connected to a LE hid device as
387 ** report host.
388 **
389 ** Returns void
390 **
391 *******************************************************************************/
BTA_HhUpdateLeScanParam(UINT8 dev_handle,UINT16 scan_int,UINT16 scan_win)392 void BTA_HhUpdateLeScanParam(UINT8 dev_handle, UINT16 scan_int, UINT16 scan_win)
393 {
394 tBTA_HH_SCPP_UPDATE *p_buf =
395 (tBTA_HH_SCPP_UPDATE *)osi_calloc(sizeof(tBTA_HH_SCPP_UPDATE));
396
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;
401
402 bta_sys_sendmsg(p_buf);
403 }
404 #endif
405
406 /*******************************************************************************/
407 /* Utility Function */
408 /*******************************************************************************/
409
410 /*******************************************************************************
411 **
412 ** Function BTA_HhParseBootRpt
413 **
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
418 ** language.
419 **
420 ** Returns void
421 **
422 *******************************************************************************/
BTA_HhParseBootRpt(tBTA_HH_BOOT_RPT * p_data,UINT8 * p_report,UINT16 report_len)423 void BTA_HhParseBootRpt(tBTA_HH_BOOT_RPT *p_data, UINT8 *p_report,
424 UINT16 report_len)
425 {
426 p_data->dev_type = BTA_HH_DEVT_UNKNOWN;
427
428 if (p_report)
429 {
430 /* first byte is report ID */
431 switch (p_report[0])
432 {
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));
436 break;
437
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));
441 break;
442
443 default:
444 APPL_TRACE_DEBUG("Unknown boot report: %d", p_report[0]);;
445 break;
446 }
447 }
448
449 return;
450 }
451
452 #endif /* BTA_HH_INCLUDED */
453