mirror of
https://github.com/espressif/esp-idf.git
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540 lines
17 KiB
C
540 lines
17 KiB
C
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/******************************************************************************
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*
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* Copyright (C) 2005-2012 Broadcom Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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#include <string.h>
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#include "bt_target.h"
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#if defined(BTA_HH_INCLUDED) && (BTA_HH_INCLUDED == TRUE)
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#include "bta_hh_int.h"
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/* if SSR max latency is not defined by remote device, set the default value
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as half of the link supervision timeout */
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#define BTA_HH_GET_DEF_SSR_MAX_LAT(x) ((x)>> 1)
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/*****************************************************************************
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** Constants
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*****************************************************************************/
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#define BTA_HH_KB_CTRL_MASK 0x11
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#define BTA_HH_KB_SHIFT_MASK 0x22
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#define BTA_HH_KB_ALT_MASK 0x44
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#define BTA_HH_KB_GUI_MASK 0x88
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#define BTA_HH_KB_CAPS_LOCK 0x39 /* caps lock */
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#define BTA_HH_KB_NUM_LOCK 0x53 /* num lock */
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#define BTA_HH_MAX_RPT_CHARS 8
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static const UINT8 bta_hh_mod_key_mask[BTA_HH_MOD_MAX_KEY] =
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{
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BTA_HH_KB_CTRL_MASK,
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BTA_HH_KB_SHIFT_MASK,
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BTA_HH_KB_ALT_MASK,
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BTA_HH_KB_GUI_MASK
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};
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/*******************************************************************************
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**
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** Function bta_hh_find_cb
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**
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** Description Find best available control block according to BD address.
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**
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**
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** Returns void
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**
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*******************************************************************************/
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UINT8 bta_hh_find_cb(BD_ADDR bda)
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{
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UINT8 xx;
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/* See how many active devices there are. */
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for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx++)
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{
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/* check if any active/known devices is a match */
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if ((!bdcmp (bda, bta_hh_cb.kdev[xx].addr) &&
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bdcmp(bda, bd_addr_null) != 0) )
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{
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#if BTA_HH_DEBUG
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APPL_TRACE_DEBUG("found kdev_cb[%d] hid_handle = %d ", xx,
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bta_hh_cb.kdev[xx].hid_handle)
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#endif
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return xx;
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}
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#if BTA_HH_DEBUG
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else
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APPL_TRACE_DEBUG("in_use ? [%d] kdev[%d].hid_handle = %d state = [%d]",
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bta_hh_cb.kdev[xx].in_use, xx,
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bta_hh_cb.kdev[xx].hid_handle,
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bta_hh_cb.kdev[xx].state);
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#endif
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}
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/* if no active device match, find a spot for it */
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for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx++)
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{
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if (!bta_hh_cb.kdev[xx].in_use)
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{
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bdcpy(bta_hh_cb.kdev[xx].addr, bda);
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break;
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}
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}
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/* If device list full, report BTA_HH_IDX_INVALID */
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#if BTA_HH_DEBUG
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APPL_TRACE_DEBUG("bta_hh_find_cb:: index = %d while max = %d",
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xx, BTA_HH_MAX_DEVICE);
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#endif
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if (xx == BTA_HH_MAX_DEVICE)
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xx = BTA_HH_IDX_INVALID;
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return xx;
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}
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/*******************************************************************************
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**
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** Function bta_hh_clean_up_kdev
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**
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** Description Clean up device control block when device is removed from
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** manitainace list, and update control block index map.
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**
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** Returns void
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**
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*******************************************************************************/
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void bta_hh_clean_up_kdev(tBTA_HH_DEV_CB *p_cb)
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{
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UINT8 index;
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if (p_cb->hid_handle != BTA_HH_INVALID_HANDLE )
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{
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#if BTA_HH_LE_INCLUDED == TRUE
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if (p_cb->is_le_device)
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bta_hh_cb.le_cb_index[BTA_HH_GET_LE_CB_IDX(p_cb->hid_handle)] = BTA_HH_IDX_INVALID;
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else
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#endif
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bta_hh_cb.cb_index[p_cb->hid_handle] = BTA_HH_IDX_INVALID;
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}
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/* reset device control block */
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index = p_cb->index; /* Preserve index for this control block */
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/* Free buffer for report descriptor info */
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utl_freebuf((void **)&p_cb->dscp_info.descriptor.dsc_list);
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memset(p_cb, 0, sizeof (tBTA_HH_DEV_CB)); /* Reset control block */
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p_cb->index = index; /* Restore index for this control block */
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p_cb->state = BTA_HH_IDLE_ST;
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p_cb->hid_handle = BTA_HH_INVALID_HANDLE;
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}
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/*******************************************************************************
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**
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** Function bta_hh_update_di_info
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**
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** Description Maintain a known device list for BTA HH.
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**
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** Returns void
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**
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*******************************************************************************/
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void bta_hh_update_di_info(tBTA_HH_DEV_CB *p_cb, UINT16 vendor_id, UINT16 product_id,
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UINT16 version, UINT8 flag)
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{
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#if BTA_HH_DEBUG
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APPL_TRACE_DEBUG("vendor_id = 0x%2x product_id = 0x%2x version = 0x%2x",
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vendor_id, product_id, version);
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#endif
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p_cb->dscp_info.vendor_id = vendor_id;
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p_cb->dscp_info.product_id = product_id;
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p_cb->dscp_info.version = version;
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#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
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p_cb->dscp_info.flag = flag;
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#else
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UNUSED(flag);
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#endif
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}
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/*******************************************************************************
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**
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** Function bta_hh_add_device_to_list
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**
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** Description Maintain a known device list for BTA HH.
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**
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** Returns void
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**
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*******************************************************************************/
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void bta_hh_add_device_to_list(tBTA_HH_DEV_CB *p_cb, UINT8 handle,
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UINT16 attr_mask,
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tHID_DEV_DSCP_INFO *p_dscp_info,
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UINT8 sub_class,
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UINT16 ssr_max_latency,
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UINT16 ssr_min_tout,
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UINT8 app_id)
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{
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#if BTA_HH_DEBUG
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APPL_TRACE_DEBUG("subclass = 0x%2x", sub_class);
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#endif
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p_cb->hid_handle = handle;
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p_cb->in_use = TRUE;
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p_cb->attr_mask = attr_mask;
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p_cb->sub_class = sub_class;
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p_cb->app_id = app_id;
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p_cb->dscp_info.ssr_max_latency = ssr_max_latency;
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p_cb->dscp_info.ssr_min_tout = ssr_min_tout;
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/* store report descriptor info */
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if ( p_dscp_info)
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{
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utl_freebuf((void **)&p_cb->dscp_info.descriptor.dsc_list);
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if (p_dscp_info->dl_len &&
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(p_cb->dscp_info.descriptor.dsc_list =
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(UINT8 *)GKI_getbuf(p_dscp_info->dl_len)) != NULL)
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{
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p_cb->dscp_info.descriptor.dl_len = p_dscp_info->dl_len;
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memcpy(p_cb->dscp_info.descriptor.dsc_list, p_dscp_info->dsc_list,
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p_dscp_info->dl_len);
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}
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}
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return;
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}
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/*******************************************************************************
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**
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** Function bta_hh_tod_spt
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**
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** Description Check to see if this type of device is supported
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**
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** Returns
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**
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*******************************************************************************/
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BOOLEAN bta_hh_tod_spt(tBTA_HH_DEV_CB *p_cb,UINT8 sub_class)
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{
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UINT8 xx;
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UINT8 cod = (sub_class >> 2); /* lower two bits are reserved */
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for (xx = 0 ; xx < p_bta_hh_cfg->max_devt_spt; xx ++)
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{
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if (cod == (UINT8) p_bta_hh_cfg->p_devt_list[xx].tod)
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{
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p_cb->app_id = p_bta_hh_cfg->p_devt_list[xx].app_id;
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#if BTA_HH_DEBUG
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APPL_TRACE_EVENT("bta_hh_tod_spt sub_class:0x%x supported", sub_class);
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#endif
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return TRUE;
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}
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}
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#if BTA_HH_DEBUG
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APPL_TRACE_EVENT("bta_hh_tod_spt sub_class:0x%x NOT supported", sub_class);
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#endif
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return FALSE;
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}
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/*******************************************************************************
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**
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** Function bta_hh_parse_keybd_rpt
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**
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** Description This utility function parse a boot mode keyboard report.
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**
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** Returns void
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**
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*******************************************************************************/
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void bta_hh_parse_keybd_rpt(tBTA_HH_BOOT_RPT *p_kb_data, UINT8 *p_report,
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UINT16 report_len)
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{
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tBTA_HH_KB_CB *p_kb = &bta_hh_cb.kb_cb;
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tBTA_HH_KEYBD_RPT *p_data = &p_kb_data->data_rpt.keybd_rpt;
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UINT8 this_char, ctl_shift;
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UINT16 xx, yy, key_idx = 0;
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UINT8 this_report[BTA_HH_MAX_RPT_CHARS];
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#if BTA_HH_DEBUG
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APPL_TRACE_DEBUG("bta_hh_parse_keybd_rpt: (report=%p, report_len=%d) called",
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p_report, report_len);
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#endif
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if (report_len < 2)
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return;
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ctl_shift = *p_report++;
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report_len--;
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if (report_len > BTA_HH_MAX_RPT_CHARS)
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report_len = BTA_HH_MAX_RPT_CHARS;
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memset (this_report, 0, BTA_HH_MAX_RPT_CHARS);
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memset (p_data, 0, sizeof(tBTA_HH_KEYBD_RPT));
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memcpy (this_report, p_report, report_len);
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/* Take care of shift, control, GUI and alt, modifier keys */
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for (xx = 0; xx < BTA_HH_MOD_MAX_KEY; xx ++ )
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{
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if (ctl_shift & bta_hh_mod_key_mask[xx])
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{
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APPL_TRACE_DEBUG("Mod Key[%02x] pressed", bta_hh_mod_key_mask[xx] );
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p_kb->mod_key[xx] = TRUE;
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}
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else if (p_kb->mod_key[xx])
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{
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p_kb->mod_key[xx] = FALSE;
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}
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/* control key flag is set */
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p_data->mod_key[xx] = p_kb->mod_key[xx];
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}
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/***************************************************************************/
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/* First step is to remove all characters we saw in the last report */
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/***************************************************************************/
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for (xx = 0; xx < report_len; xx++)
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{
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for (yy = 0; yy < BTA_HH_MAX_RPT_CHARS; yy++)
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{
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if (this_report[xx] == p_kb->last_report[yy])
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{
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this_report[xx] = 0;
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}
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}
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}
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/***************************************************************************/
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/* Now, process all the characters in the report, up to 6 keycodes */
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/***************************************************************************/
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for (xx = 0; xx < report_len; xx++)
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{
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#if BTA_HH_DEBUG
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APPL_TRACE_DEBUG("this_char = %02x", this_report[xx]);
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#endif
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if ((this_char = this_report[xx]) == 0)
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continue;
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/* take the key code as the report data */
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if (this_report[xx] == BTA_HH_KB_CAPS_LOCK)
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p_kb->caps_lock = p_kb->caps_lock ? FALSE : TRUE;
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else if (this_report[xx] == BTA_HH_KB_NUM_LOCK)
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p_kb->num_lock = p_kb->num_lock ? FALSE : TRUE;
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else
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p_data->this_char[key_idx ++] = this_char;
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#if BTA_HH_DEBUG
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APPL_TRACE_DEBUG("found keycode %02x ", this_report[xx]);
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#endif
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p_data->caps_lock = p_kb->caps_lock;
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p_data->num_lock = p_kb->num_lock;
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}
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memset (p_kb->last_report, 0, BTA_HH_MAX_RPT_CHARS);
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memcpy (p_kb->last_report, p_report, report_len);
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return;
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}
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/*******************************************************************************
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**
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** Function bta_hh_parse_mice_rpt
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**
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** Description This utility function parse a boot mode mouse report.
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**
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** Returns void
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**
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*******************************************************************************/
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void bta_hh_parse_mice_rpt(tBTA_HH_BOOT_RPT *p_mice_data, UINT8 *p_report,
|
||
|
|
UINT16 report_len)
|
||
|
|
{
|
||
|
|
tBTA_HH_MICE_RPT *p_data = &p_mice_data->data_rpt.mice_rpt;
|
||
|
|
#if BTA_HH_DEBUG
|
||
|
|
UINT8 xx;
|
||
|
|
|
||
|
|
APPL_TRACE_DEBUG("bta_hh_parse_mice_rpt: bta_keybd_rpt_rcvd(report=%p, \
|
||
|
|
report_len=%d) called", p_report, report_len);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if (report_len < 3)
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (report_len > BTA_HH_MAX_RPT_CHARS)
|
||
|
|
report_len = BTA_HH_MAX_RPT_CHARS;
|
||
|
|
|
||
|
|
#if BTA_HH_DEBUG
|
||
|
|
for (xx = 0; xx < report_len; xx++)
|
||
|
|
{
|
||
|
|
APPL_TRACE_DEBUG("this_char = %02x", p_report[xx]);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* only first bytes lower 3 bits valid */
|
||
|
|
p_data->mouse_button = (p_report[0] & 0x07);
|
||
|
|
|
||
|
|
/* x displacement */
|
||
|
|
p_data->delta_x = p_report[1];
|
||
|
|
|
||
|
|
/* y displacement */
|
||
|
|
p_data->delta_y = p_report[2];
|
||
|
|
|
||
|
|
#if BTA_HH_DEBUG
|
||
|
|
APPL_TRACE_DEBUG("mice button: 0x%2x", p_data->mouse_button);
|
||
|
|
APPL_TRACE_DEBUG("mice move: x = %d y = %d", p_data->delta_x,
|
||
|
|
p_data->delta_y );
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
**
|
||
|
|
** Function bta_hh_read_ssr_param
|
||
|
|
**
|
||
|
|
** Description Read the SSR Parameter for the remote device
|
||
|
|
**
|
||
|
|
** Returns tBTA_HH_STATUS operation status
|
||
|
|
**
|
||
|
|
*******************************************************************************/
|
||
|
|
tBTA_HH_STATUS bta_hh_read_ssr_param(BD_ADDR bd_addr, UINT16 *p_max_ssr_lat, UINT16 *p_min_ssr_tout)
|
||
|
|
{
|
||
|
|
tBTA_HH_STATUS status = BTA_HH_ERR;
|
||
|
|
tBTA_HH_CB *p_cb = &bta_hh_cb;
|
||
|
|
UINT8 i;
|
||
|
|
UINT16 ssr_max_latency;
|
||
|
|
for (i = 0; i < BTA_HH_MAX_KNOWN; i ++)
|
||
|
|
{
|
||
|
|
if (memcmp(p_cb->kdev[i].addr, bd_addr, BD_ADDR_LEN) == 0)
|
||
|
|
{
|
||
|
|
|
||
|
|
/* if remote device does not have HIDSSRHostMaxLatency attribute in SDP,
|
||
|
|
set SSR max latency default value here. */
|
||
|
|
if (p_cb->kdev[i].dscp_info.ssr_max_latency == HID_SSR_PARAM_INVALID)
|
||
|
|
{
|
||
|
|
/* The default is calculated as half of link supervision timeout.*/
|
||
|
|
|
||
|
|
BTM_GetLinkSuperTout(p_cb->kdev[i].addr, &ssr_max_latency) ;
|
||
|
|
ssr_max_latency = BTA_HH_GET_DEF_SSR_MAX_LAT(ssr_max_latency);
|
||
|
|
|
||
|
|
/* per 1.1 spec, if the newly calculated max latency is greater than
|
||
|
|
BTA_HH_SSR_MAX_LATENCY_DEF which is 500ms, use BTA_HH_SSR_MAX_LATENCY_DEF */
|
||
|
|
if (ssr_max_latency > BTA_HH_SSR_MAX_LATENCY_DEF)
|
||
|
|
ssr_max_latency = BTA_HH_SSR_MAX_LATENCY_DEF;
|
||
|
|
|
||
|
|
* p_max_ssr_lat = ssr_max_latency;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
* p_max_ssr_lat = p_cb->kdev[i].dscp_info.ssr_max_latency;
|
||
|
|
|
||
|
|
if (p_cb->kdev[i].dscp_info.ssr_min_tout == HID_SSR_PARAM_INVALID)
|
||
|
|
* p_min_ssr_tout = BTA_HH_SSR_MIN_TOUT_DEF;
|
||
|
|
else
|
||
|
|
* p_min_ssr_tout = p_cb->kdev[i].dscp_info.ssr_min_tout;
|
||
|
|
|
||
|
|
status = BTA_HH_OK;
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
**
|
||
|
|
** Function bta_hh_cleanup_disable
|
||
|
|
**
|
||
|
|
** Description when disable finished, cleanup control block and send callback
|
||
|
|
**
|
||
|
|
**
|
||
|
|
** Returns void
|
||
|
|
**
|
||
|
|
*******************************************************************************/
|
||
|
|
void bta_hh_cleanup_disable(tBTA_HH_STATUS status)
|
||
|
|
{
|
||
|
|
UINT8 xx;
|
||
|
|
/* free buffer in CB holding report descriptors */
|
||
|
|
for(xx = 0; xx < BTA_HH_MAX_DEVICE; xx ++)
|
||
|
|
{
|
||
|
|
utl_freebuf((void **)&bta_hh_cb.kdev[xx].dscp_info.descriptor.dsc_list);
|
||
|
|
}
|
||
|
|
utl_freebuf((void **)&bta_hh_cb.p_disc_db);
|
||
|
|
|
||
|
|
(* bta_hh_cb.p_cback)(BTA_HH_DISABLE_EVT, (tBTA_HH *)&status);
|
||
|
|
/* all connections are down, no waiting for diconnect */
|
||
|
|
memset(&bta_hh_cb, 0, sizeof(tBTA_HH_CB));
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
**
|
||
|
|
** Function bta_hh_dev_handle_to_cb_idx
|
||
|
|
**
|
||
|
|
** Description convert a HID device handle to the device control block index.
|
||
|
|
**
|
||
|
|
**
|
||
|
|
** Returns UINT8: index of the device control block.
|
||
|
|
**
|
||
|
|
*******************************************************************************/
|
||
|
|
UINT8 bta_hh_dev_handle_to_cb_idx(UINT8 dev_handle)
|
||
|
|
{
|
||
|
|
UINT8 index = BTA_HH_IDX_INVALID;
|
||
|
|
|
||
|
|
#if BTA_HH_LE_INCLUDED == TRUE
|
||
|
|
if (BTA_HH_IS_LE_DEV_HDL(dev_handle))
|
||
|
|
{
|
||
|
|
if (BTA_HH_IS_LE_DEV_HDL_VALID(dev_handle))
|
||
|
|
index = bta_hh_cb.le_cb_index[BTA_HH_GET_LE_CB_IDX(dev_handle)];
|
||
|
|
#if BTA_HH_DEBUG == TRUE
|
||
|
|
APPL_TRACE_DEBUG("bta_hh_dev_handle_to_cb_idx dev_handle = %d index = %d", dev_handle, index);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
else
|
||
|
|
#endif
|
||
|
|
/* regular HID device checking */
|
||
|
|
if (dev_handle < BTA_HH_MAX_KNOWN )
|
||
|
|
index = bta_hh_cb.cb_index[dev_handle];
|
||
|
|
|
||
|
|
return index;
|
||
|
|
|
||
|
|
}
|
||
|
|
#if BTA_HH_DEBUG
|
||
|
|
/*******************************************************************************
|
||
|
|
**
|
||
|
|
** Function bta_hh_trace_dev_db
|
||
|
|
**
|
||
|
|
** Description Check to see if this type of device is supported
|
||
|
|
**
|
||
|
|
** Returns
|
||
|
|
**
|
||
|
|
*******************************************************************************/
|
||
|
|
void bta_hh_trace_dev_db(void)
|
||
|
|
{
|
||
|
|
UINT8 xx;
|
||
|
|
|
||
|
|
APPL_TRACE_DEBUG("bta_hh_trace_dev_db:: Device DB list********************");
|
||
|
|
|
||
|
|
for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx++)
|
||
|
|
{
|
||
|
|
APPL_TRACE_DEBUG("kdev[%d] in_use[%d] handle[%d] ",xx,
|
||
|
|
bta_hh_cb.kdev[xx].in_use, bta_hh_cb.kdev[xx].hid_handle);
|
||
|
|
|
||
|
|
APPL_TRACE_DEBUG("\t\t\t attr_mask[%04x] state [%d] sub_class[%02x] index = %d",
|
||
|
|
bta_hh_cb.kdev[xx].attr_mask, bta_hh_cb.kdev[xx].state,
|
||
|
|
bta_hh_cb.kdev[xx].sub_class, bta_hh_cb.kdev[xx].index);
|
||
|
|
}
|
||
|
|
APPL_TRACE_DEBUG("*********************************************************");
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif /* HL_INCLUDED */
|