diff options
Diffstat (limited to 'bta/hh/bta_hh_utils.c')
| -rw-r--r-- | bta/hh/bta_hh_utils.c | 136 |
1 files changed, 120 insertions, 16 deletions
diff --git a/bta/hh/bta_hh_utils.c b/bta/hh/bta_hh_utils.c index 43492824d..bea0f2b81 100644 --- a/bta/hh/bta_hh_utils.c +++ b/bta/hh/bta_hh_utils.c @@ -23,6 +23,10 @@ #include "bta_hh_int.h" +/* if SSR max latency is not defined by remote device, set the default value + as half of the link supervision timeout */ +#define BTA_HH_GET_DEF_SSR_MAX_LAT(x) ((x)>> 1) + /***************************************************************************** ** Constants *****************************************************************************/ @@ -61,7 +65,7 @@ UINT8 bta_hh_find_cb(BD_ADDR bda) UINT8 xx; /* See how many active devices there are. */ - for (xx = 0; xx < BTA_HH_MAX_KNOWN; xx++) + for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx++) { /* check if any active/known devices is a match */ if ((!bdcmp (bda, bta_hh_cb.kdev[xx].addr) && @@ -83,7 +87,7 @@ UINT8 bta_hh_find_cb(BD_ADDR bda) } /* if no active device match, find a spot for it */ - for (xx = 0; xx < BTA_HH_MAX_KNOWN; xx++) + for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx++) { if (!bta_hh_cb.kdev[xx].in_use) { @@ -91,12 +95,15 @@ UINT8 bta_hh_find_cb(BD_ADDR bda) break; } } - /* If device list full, report BTA_HH_MAX_KNOWN */ + /* If device list full, report BTA_HH_IDX_INVALID */ #if BTA_HH_DEBUG APPL_TRACE_DEBUG2("bta_hh_find_cb:: index = %d while max = %d", - xx, BTA_HH_MAX_KNOWN); + xx, BTA_HH_MAX_DEVICE); #endif + if (xx == BTA_HH_MAX_DEVICE) + xx = BTA_HH_IDX_INVALID; + return xx; } @@ -115,7 +122,9 @@ void bta_hh_clean_up_kdev(tBTA_HH_DEV_CB *p_cb) UINT8 index; if (p_cb->hid_handle != BTA_HH_INVALID_HANDLE ) - bta_hh_cb.cb_index[p_cb->hid_handle] = BTA_HH_MAX_KNOWN; + { + bta_hh_cb.cb_index[p_cb->hid_handle] = BTA_HH_IDX_INVALID; + } /* reset device control block */ index = p_cb->index; /* Preserve index for this control block */ @@ -140,7 +149,7 @@ void bta_hh_clean_up_kdev(tBTA_HH_DEV_CB *p_cb) ** *******************************************************************************/ void bta_hh_update_di_info(tBTA_HH_DEV_CB *p_cb, UINT16 vendor_id, UINT16 product_id, - UINT16 version) + UINT16 version, UINT8 flag) { #if BTA_HH_DEBUG APPL_TRACE_DEBUG3("vendor_id = 0x%2x product_id = 0x%2x version = 0x%2x", @@ -178,15 +187,8 @@ void bta_hh_add_device_to_list(tBTA_HH_DEV_CB *p_cb, UINT8 handle, p_cb->sub_class = sub_class; p_cb->app_id = app_id; - if (ssr_max_latency == HID_SSR_PARAM_INVALID) - p_cb->dscp_info.ssr_max_latency = BTA_HH_SSR_MAX_LATENCY_DEF; - else - p_cb->dscp_info.ssr_max_latency = ssr_max_latency; - - if (ssr_min_tout == HID_SSR_PARAM_INVALID) - p_cb->dscp_info.ssr_min_tout = BTA_HH_SSR_MIN_TOUT_DEF; - else - p_cb->dscp_info.ssr_min_tout = ssr_min_tout; + p_cb->dscp_info.ssr_max_latency = ssr_max_latency; + p_cb->dscp_info.ssr_min_tout = ssr_min_tout; /* store report descriptor info */ if ( p_dscp_info) @@ -386,6 +388,108 @@ void bta_hh_parse_mice_rpt(tBTA_HH_BOOT_RPT *p_mice_data, UINT8 *p_report, } +/******************************************************************************* +** +** 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; + /* lock other GKI task */ + GKI_sched_lock(); + 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; + } + } + GKI_sched_unlock(); + + 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; + + /* 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 /******************************************************************************* ** @@ -402,7 +506,7 @@ void bta_hh_trace_dev_db(void) APPL_TRACE_DEBUG0("bta_hh_trace_dev_db:: Device DB list********************"); - for (xx = 0; xx < BTA_HH_MAX_KNOWN; xx++) + for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx++) { APPL_TRACE_DEBUG3("kdev[%d] in_use[%d] handle[%d] ",xx, bta_hh_cb.kdev[xx].in_use, bta_hh_cb.kdev[xx].hid_handle); |