| /****************************************************************************** |
| * |
| * Copyright (C) 2010-2012 Broadcom Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ******************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * This is the main implementation file for the NFA system manager. |
| * |
| ******************************************************************************/ |
| #include <string.h> |
| #include "nfa_api.h" |
| #include "nfa_sys.h" |
| #include "nfa_sys_int.h" |
| #include "nfa_sys_ptim.h" |
| #include "nfa_dm_int.h" |
| |
| /* protocol timer update period, in milliseconds */ |
| #ifndef NFA_SYS_TIMER_PERIOD |
| #define NFA_SYS_TIMER_PERIOD 10 |
| #endif |
| |
| /* system manager control block definition */ |
| #if NFA_DYNAMIC_MEMORY == FALSE |
| tNFA_SYS_CB nfa_sys_cb = {0}; /* nfa_sys control block. statically initialize 'flags' field to 0 */ |
| #endif |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_init |
| ** |
| ** Description NFA initialization; called from task initialization. |
| ** |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void nfa_sys_init (void) |
| { |
| memset (&nfa_sys_cb, 0, sizeof (tNFA_SYS_CB)); |
| nfa_sys_cb.flags |= NFA_SYS_FL_INITIALIZED; |
| nfa_sys_ptim_init (&nfa_sys_cb.ptim_cb, NFA_SYS_TIMER_PERIOD, p_nfa_sys_cfg->timer); |
| nfa_sys_cb.trace_level = p_nfa_sys_cfg->trace_level; |
| } |
| |
| |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_event |
| ** |
| ** Description BTA event handler; called from task event handler. |
| ** |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void nfa_sys_event (BT_HDR *p_msg) |
| { |
| UINT8 id; |
| BOOLEAN freebuf = TRUE; |
| |
| NFA_TRACE_EVENT1 ("NFA got event 0x%04X", p_msg->event); |
| |
| /* get subsystem id from event */ |
| id = (UINT8) (p_msg->event >> 8); |
| |
| /* verify id and call subsystem event handler */ |
| if ((id < NFA_ID_MAX) && (nfa_sys_cb.is_reg[id])) |
| { |
| freebuf = (*nfa_sys_cb.reg[id]->evt_hdlr) (p_msg); |
| } |
| else |
| { |
| NFA_TRACE_WARNING1 ("NFA got unregistered event id %d", id); |
| } |
| |
| if (freebuf) |
| { |
| GKI_freebuf (p_msg); |
| } |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_timer_update |
| ** |
| ** Description Update the BTA timer list and handle expired timers. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void nfa_sys_timer_update (void) |
| { |
| if (!nfa_sys_cb.timers_disabled) |
| { |
| nfa_sys_ptim_timer_update (&nfa_sys_cb.ptim_cb); |
| } |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_register |
| ** |
| ** Description Called by other BTA subsystems to register their event |
| ** handler. |
| ** |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void nfa_sys_register (UINT8 id, const tNFA_SYS_REG *p_reg) |
| { |
| nfa_sys_cb.reg[id] = (tNFA_SYS_REG *) p_reg; |
| nfa_sys_cb.is_reg[id] = TRUE; |
| |
| if ((id != NFA_ID_DM) && (id != NFA_ID_SYS)) |
| nfa_sys_cb.enable_cplt_mask |= (0x0001 << id); |
| |
| if (id != NFA_ID_SYS) |
| { |
| if (p_reg->proc_nfcc_pwr_mode) |
| nfa_sys_cb.proc_nfcc_pwr_mode_cplt_mask |= (0x0001 << id); |
| } |
| |
| NFA_TRACE_DEBUG2 ("nfa_sys_register () id=%i, enable_cplt_mask=0x%x", |
| id, nfa_sys_cb.enable_cplt_mask); |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_check_disabled |
| ** |
| ** Description If all subsystems above DM have been disabled, then |
| ** disable DM. Called during NFA shutdown |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void nfa_sys_check_disabled (void) |
| { |
| UINT8 id; |
| UINT8 done = TRUE; |
| |
| /* Check if all subsystems above DM have been disabled. */ |
| for (id = (NFA_ID_DM+1); id < NFA_ID_MAX; id++) |
| { |
| if (nfa_sys_cb.is_reg[id]) |
| { |
| /* as long as one subsystem is not done */ |
| done = FALSE; |
| break; |
| } |
| } |
| |
| /* All subsystems disabled. disable DM */ |
| if ((done) && (nfa_sys_cb.is_reg[NFA_ID_DM])) |
| { |
| (*nfa_sys_cb.reg[NFA_ID_DM]->disable) (); |
| } |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_deregister |
| ** |
| ** Description Called by other BTA subsystems to de-register |
| ** handler. |
| ** |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void nfa_sys_deregister (UINT8 id) |
| { |
| NFA_TRACE_DEBUG1 ("nfa_sys: deregistering subsystem %i", id); |
| |
| nfa_sys_cb.is_reg[id] = FALSE; |
| |
| /* If not deregistering DM, then check if any other subsystems above DM are still */ |
| /* registered. */ |
| if (id != NFA_ID_DM) |
| { |
| /* If all subsystems above NFA_DM have been disabled, then okay to disable DM */ |
| nfa_sys_check_disabled (); |
| } |
| else |
| { |
| /* DM (the final sub-system) is deregistering. Clear pending timer events in nfa_sys. */ |
| nfa_sys_ptim_init (&nfa_sys_cb.ptim_cb, NFA_SYS_TIMER_PERIOD, p_nfa_sys_cfg->timer); |
| } |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_is_register |
| ** |
| ** Description Called by other BTA subsystems to get registeration |
| ** status. |
| ** |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| BOOLEAN nfa_sys_is_register (UINT8 id) |
| { |
| return nfa_sys_cb.is_reg[id]; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_is_graceful_disable |
| ** |
| ** Description Called by other BTA subsystems to get disable |
| ** parameter. |
| ** |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| BOOLEAN nfa_sys_is_graceful_disable (void) |
| { |
| return nfa_sys_cb.graceful_disable; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_enable_subsystems |
| ** |
| ** Description Call on NFA Start up |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void nfa_sys_enable_subsystems (void) |
| { |
| UINT8 id; |
| |
| NFA_TRACE_DEBUG0 ("nfa_sys: enabling subsystems"); |
| |
| /* Enable all subsystems except SYS */ |
| for (id = NFA_ID_DM; id < NFA_ID_MAX; id++) |
| { |
| if (nfa_sys_cb.is_reg[id]) |
| { |
| if (nfa_sys_cb.reg[id]->enable != NULL) |
| { |
| /* Subsytem has a Disable funciton. Call it now */ |
| (*nfa_sys_cb.reg[id]->enable) (); |
| } |
| else |
| { |
| /* Subsytem does not have a Enable function. Report Enable on behalf of subsystem */ |
| nfa_sys_cback_notify_enable_complete (id); |
| } |
| } |
| } |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_disable_subsystems |
| ** |
| ** Description Call on NFA shutdown. Disable all subsystems above NFA_DM |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void nfa_sys_disable_subsystems (BOOLEAN graceful) |
| { |
| UINT8 id; |
| BOOLEAN done = TRUE; |
| |
| NFA_TRACE_DEBUG1 ("nfa_sys: disabling subsystems:%d", graceful); |
| nfa_sys_cb.graceful_disable = graceful; |
| |
| /* Disable all subsystems above NFA_DM. (NFA_DM and NFA_SYS will be disabled last) */ |
| for (id = (NFA_ID_DM+1); id < NFA_ID_MAX; id++) |
| { |
| if (nfa_sys_cb.is_reg[id]) |
| { |
| done = FALSE; |
| if (nfa_sys_cb.reg[id]->disable != NULL) |
| { |
| /* Subsytem has a Disable funciton. Call it now */ |
| (*nfa_sys_cb.reg[id]->disable) (); |
| } |
| else |
| { |
| /* Subsytem does not have a Disable function. Deregister on behalf of subsystem */ |
| nfa_sys_deregister (id); |
| } |
| } |
| } |
| |
| /* If All subsystems disabled. disable DM */ |
| if ((done) && (nfa_sys_cb.is_reg[NFA_ID_DM])) |
| { |
| (*nfa_sys_cb.reg[NFA_ID_DM]->disable) (); |
| } |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_notify_nfcc_power_mode |
| ** |
| ** Description Call to notify NFCC power mode to NFA sub-modules |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void nfa_sys_notify_nfcc_power_mode (UINT8 nfcc_power_mode) |
| { |
| UINT8 id; |
| |
| NFA_TRACE_DEBUG1 ("nfa_sys: notify NFCC power mode(%d) to subsystems", nfcc_power_mode); |
| |
| /* Notify NFCC power state to all subsystems except NFA_SYS */ |
| for (id = NFA_ID_DM; id < NFA_ID_MAX; id++) |
| { |
| if ((nfa_sys_cb.is_reg[id]) && (nfa_sys_cb.reg[id]->proc_nfcc_pwr_mode)) |
| { |
| /* Subsytem has a funciton for processing NFCC power mode. Call it now */ |
| (*nfa_sys_cb.reg[id]->proc_nfcc_pwr_mode) (nfcc_power_mode); |
| } |
| } |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_sendmsg |
| ** |
| ** Description Send a GKI message to BTA. This function is designed to |
| ** optimize sending of messages to BTA. It is called by BTA |
| ** API functions and call-in functions. |
| ** |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void nfa_sys_sendmsg (void *p_msg) |
| { |
| GKI_send_msg (NFC_TASK, p_nfa_sys_cfg->mbox, p_msg); |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_start_timer |
| ** |
| ** Description Start a protocol timer for the specified amount |
| ** of time in milliseconds. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void nfa_sys_start_timer (TIMER_LIST_ENT *p_tle, UINT16 type, INT32 timeout) |
| { |
| nfa_sys_ptim_start_timer (&nfa_sys_cb.ptim_cb, p_tle, type, timeout); |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_stop_timer |
| ** |
| ** Description Stop a BTA timer. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void nfa_sys_stop_timer (TIMER_LIST_ENT *p_tle) |
| { |
| nfa_sys_ptim_stop_timer (&nfa_sys_cb.ptim_cb, p_tle); |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_disable_timers |
| ** |
| ** Description Disable sys timer event handling |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void nfa_sys_disable_timers (void) |
| { |
| nfa_sys_cb.timers_disabled = TRUE; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function nfa_sys_set_trace_level |
| ** |
| ** Description Set trace level for BTA |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void nfa_sys_set_trace_level (UINT8 level) |
| { |
| nfa_sys_cb.trace_level = level; |
| } |