| /****************************************************************************** |
| * |
| * Copyright (C) 2009-2012 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. |
| * |
| ******************************************************************************/ |
| |
| |
| /***************************************************************************** |
| * |
| * Filename: btif_rc.c |
| * |
| * Description: Bluetooth AVRC implementation |
| * |
| *****************************************************************************/ |
| #include <hardware/bluetooth.h> |
| #include <fcntl.h> |
| #include "bta_api.h" |
| #include "bta_av_api.h" |
| #include "avrc_defs.h" |
| #include "bd.h" |
| #include "gki.h" |
| |
| #define LOG_TAG "BTIF_RC" |
| #include "btif_common.h" |
| #include "btif_util.h" |
| #include "btif_av.h" |
| #include "hardware/bt_rc.h" |
| #include "uinput.h" |
| |
| /***************************************************************************** |
| ** Constants & Macros |
| ******************************************************************************/ |
| |
| /* cod value for Headsets */ |
| #define COD_AV_HEADSETS 0x0404 |
| /* for AVRC 1.4 need to change this */ |
| #define MAX_RC_NOTIFICATIONS AVRC_EVT_APP_SETTING_CHANGE |
| |
| #define IDX_GET_PLAY_STATUS_RSP 0 |
| #define IDX_LIST_APP_ATTR_RSP 1 |
| #define IDX_LIST_APP_VALUE_RSP 2 |
| #define IDX_GET_CURR_APP_VAL_RSP 3 |
| #define IDX_SET_APP_VAL_RSP 4 |
| #define IDX_GET_APP_ATTR_TXT_RSP 5 |
| #define IDX_GET_APP_VAL_TXT_RSP 6 |
| #define IDX_GET_ELEMENT_ATTR_RSP 7 |
| #define MAX_VOLUME 128 |
| #define MAX_LABEL 16 |
| #define MAX_TRANSACTIONS_PER_SESSION 16 |
| #define MAX_CMD_QUEUE_LEN 8 |
| |
| #define CHECK_RC_CONNECTED \ |
| BTIF_TRACE_DEBUG1("## %s ##", __FUNCTION__); \ |
| if(btif_rc_cb.rc_connected == FALSE) \ |
| { \ |
| BTIF_TRACE_WARNING1("Function %s() called when RC is not connected", __FUNCTION__); \ |
| return BT_STATUS_NOT_READY; \ |
| } |
| |
| #define FILL_PDU_QUEUE(index, ctype, label, pending) \ |
| { \ |
| btif_rc_cb.rc_pdu_info[index].ctype = ctype; \ |
| btif_rc_cb.rc_pdu_info[index].label = label; \ |
| btif_rc_cb.rc_pdu_info[index].is_rsp_pending = pending; \ |
| } |
| |
| #define SEND_METAMSG_RSP(index, avrc_rsp) \ |
| { \ |
| if(btif_rc_cb.rc_pdu_info[index].is_rsp_pending == FALSE) \ |
| { \ |
| BTIF_TRACE_WARNING1("%s Not sending response as no PDU was registered", __FUNCTION__); \ |
| return BT_STATUS_UNHANDLED; \ |
| } \ |
| send_metamsg_rsp(btif_rc_cb.rc_handle, btif_rc_cb.rc_pdu_info[index].label, \ |
| btif_rc_cb.rc_pdu_info[index].ctype, avrc_rsp); \ |
| btif_rc_cb.rc_pdu_info[index].ctype = 0; \ |
| btif_rc_cb.rc_pdu_info[index].label = 0; \ |
| btif_rc_cb.rc_pdu_info[index].is_rsp_pending = FALSE; \ |
| } |
| |
| /***************************************************************************** |
| ** Local type definitions |
| ******************************************************************************/ |
| typedef struct { |
| UINT8 bNotify; |
| UINT8 label; |
| } btif_rc_reg_notifications_t; |
| |
| typedef struct |
| { |
| UINT8 label; |
| UINT8 ctype; |
| BOOLEAN is_rsp_pending; |
| } btif_rc_cmd_ctxt_t; |
| |
| /* TODO : Merge btif_rc_reg_notifications_t and btif_rc_cmd_ctxt_t to a single struct */ |
| typedef struct { |
| BOOLEAN rc_connected; |
| UINT8 rc_handle; |
| tBTA_AV_FEAT rc_features; |
| BD_ADDR rc_addr; |
| UINT16 rc_pending_play; |
| btif_rc_cmd_ctxt_t rc_pdu_info[MAX_CMD_QUEUE_LEN]; |
| btif_rc_reg_notifications_t rc_notif[MAX_RC_NOTIFICATIONS]; |
| unsigned int rc_volume; |
| uint8_t rc_vol_label; |
| } btif_rc_cb_t; |
| |
| typedef struct { |
| BOOLEAN in_use; |
| UINT8 lbl; |
| UINT8 handle; |
| } rc_transaction_t; |
| |
| typedef struct |
| { |
| pthread_mutex_t lbllock; |
| rc_transaction_t transaction[MAX_TRANSACTIONS_PER_SESSION]; |
| } rc_device_t; |
| |
| |
| rc_device_t device; |
| |
| #define MAX_UINPUT_PATHS 3 |
| static const char* uinput_dev_path[] = |
| {"/dev/uinput", "/dev/input/uinput", "/dev/misc/uinput" }; |
| static int uinput_fd = -1; |
| |
| static int send_event (int fd, uint16_t type, uint16_t code, int32_t value); |
| static void send_key (int fd, uint16_t key, int pressed); |
| static int uinput_driver_check(); |
| static int uinput_create(char *name); |
| static int init_uinput (void); |
| static void close_uinput (void); |
| static BOOLEAN dev_blacklisted_for_absolute_volume(BD_ADDR peer_dev); |
| |
| static const struct { |
| const char *name; |
| uint8_t avrcp; |
| uint16_t mapped_id; |
| uint8_t release_quirk; |
| } key_map[] = { |
| { "PLAY", AVRC_ID_PLAY, KEY_PLAYCD, 1 }, |
| { "STOP", AVRC_ID_STOP, KEY_STOPCD, 0 }, |
| { "PAUSE", AVRC_ID_PAUSE, KEY_PAUSECD, 1 }, |
| { "FORWARD", AVRC_ID_FORWARD, KEY_NEXTSONG, 0 }, |
| { "BACKWARD", AVRC_ID_BACKWARD, KEY_PREVIOUSSONG, 0 }, |
| { "REWIND", AVRC_ID_REWIND, KEY_REWIND, 0 }, |
| { "FAST FORWARD", AVRC_ID_FAST_FOR, KEY_FAST_FORWARD, 0 }, |
| { NULL, 0, 0, 0 } |
| }; |
| |
| /* the rc_black_addr_prefix and rc_white_addr_prefix are used to correct |
| * IOP issues of absolute volume feature |
| * We encoutered A2DP headsets/carkits advertising absolute volume but buggy. |
| * We would like to blacklist those devices. |
| * But we donot have a full list of the bad devices. So as a temp fix, we |
| * are blacklisting all the devices except the devices we have well tested, |
| * the ones in the whitelist. |
| * |
| * For now, only the rc_white_addr_prefix is used in the code while |
| * rc_black_addr_prefix is kept here for future long term solution. |
| */ |
| static const UINT8 rc_black_addr_prefix[][3] = { |
| {0x0, 0x18, 0x6B}, // LG HBS-730 |
| {0x0, 0x26, 0x7E} // VW Passat |
| }; |
| |
| static const UINT8 rc_white_addr_prefix[][3] = { |
| {0x94, 0xCE, 0x2C}, // Sony SBH50 |
| {0x30, 0x17, 0xC8} // Sony wm600 |
| }; |
| |
| static void send_reject_response (UINT8 rc_handle, UINT8 label, |
| UINT8 pdu, UINT8 status); |
| static UINT8 opcode_from_pdu(UINT8 pdu); |
| static void send_metamsg_rsp (UINT8 rc_handle, UINT8 label, |
| tBTA_AV_CODE code, tAVRC_RESPONSE *pmetamsg_resp); |
| static void register_volumechange(UINT8 label); |
| static void lbl_init(); |
| static void lbl_destroy(); |
| static void init_all_transactions(); |
| static bt_status_t get_transaction(rc_transaction_t **ptransaction); |
| static void release_transaction(UINT8 label); |
| static rc_transaction_t* get_transaction_by_lbl(UINT8 label); |
| static void handle_rc_metamsg_rsp(tBTA_AV_META_MSG *pmeta_msg); |
| static void btif_rc_upstreams_evt(UINT16 event, tAVRC_COMMAND* p_param, UINT8 ctype, UINT8 label); |
| static void btif_rc_upstreams_rsp_evt(UINT16 event, tAVRC_RESPONSE *pavrc_resp, UINT8 ctype, UINT8 label); |
| |
| /***************************************************************************** |
| ** Static variables |
| ******************************************************************************/ |
| static btif_rc_cb_t btif_rc_cb; |
| static btrc_callbacks_t *bt_rc_callbacks = NULL; |
| |
| /***************************************************************************** |
| ** Static functions |
| ******************************************************************************/ |
| |
| /***************************************************************************** |
| ** Externs |
| ******************************************************************************/ |
| extern BOOLEAN btif_hf_call_terminated_recently(); |
| extern BOOLEAN check_cod(const bt_bdaddr_t *remote_bdaddr, uint32_t cod); |
| |
| |
| /***************************************************************************** |
| ** Functions |
| ******************************************************************************/ |
| |
| /***************************************************************************** |
| ** Local uinput helper functions |
| ******************************************************************************/ |
| int send_event (int fd, uint16_t type, uint16_t code, int32_t value) |
| { |
| struct uinput_event event; |
| BTIF_TRACE_DEBUG4("%s type:%u code:%u value:%d", __FUNCTION__, |
| type, code, value); |
| memset(&event, 0, sizeof(event)); |
| event.type = type; |
| event.code = code; |
| event.value = value; |
| |
| return write(fd, &event, sizeof(event)); |
| } |
| |
| void send_key (int fd, uint16_t key, int pressed) |
| { |
| BTIF_TRACE_DEBUG4("%s fd:%d key:%u pressed:%d", __FUNCTION__, |
| fd, key, pressed); |
| |
| if (fd < 0) |
| { |
| return; |
| } |
| |
| BTIF_TRACE_DEBUG3("AVRCP: Send key %d (%d) fd=%d", key, pressed, fd); |
| send_event(fd, EV_KEY, key, pressed); |
| send_event(fd, EV_SYN, SYN_REPORT, 0); |
| } |
| |
| /************** uinput related functions **************/ |
| int uinput_driver_check() |
| { |
| uint32_t i; |
| for (i=0; i < MAX_UINPUT_PATHS; i++) |
| { |
| if (access(uinput_dev_path[i], O_RDWR) == 0) { |
| return 0; |
| } |
| } |
| BTIF_TRACE_ERROR1("%s ERROR: uinput device is not in the system", __FUNCTION__); |
| return -1; |
| } |
| |
| int uinput_create(char *name) |
| { |
| struct uinput_dev dev; |
| int fd, err, x = 0; |
| |
| for(x=0; x < MAX_UINPUT_PATHS; x++) |
| { |
| fd = open(uinput_dev_path[x], O_RDWR); |
| if (fd < 0) |
| continue; |
| break; |
| } |
| if (x == MAX_UINPUT_PATHS) { |
| BTIF_TRACE_ERROR1("%s ERROR: uinput device open failed", __FUNCTION__); |
| return -1; |
| } |
| memset(&dev, 0, sizeof(dev)); |
| if (name) |
| strncpy(dev.name, name, UINPUT_MAX_NAME_SIZE); |
| |
| dev.id.bustype = BUS_BLUETOOTH; |
| dev.id.vendor = 0x0000; |
| dev.id.product = 0x0000; |
| dev.id.version = 0x0000; |
| |
| if (write(fd, &dev, sizeof(dev)) < 0) { |
| BTIF_TRACE_ERROR1("%s Unable to write device information", __FUNCTION__); |
| close(fd); |
| return -1; |
| } |
| |
| ioctl(fd, UI_SET_EVBIT, EV_KEY); |
| ioctl(fd, UI_SET_EVBIT, EV_REL); |
| ioctl(fd, UI_SET_EVBIT, EV_SYN); |
| |
| for (x = 0; key_map[x].name != NULL; x++) |
| ioctl(fd, UI_SET_KEYBIT, key_map[x].mapped_id); |
| |
| for(x = 0; x < KEY_MAX; x++) |
| ioctl(fd, UI_SET_KEYBIT, x); |
| |
| if (ioctl(fd, UI_DEV_CREATE, NULL) < 0) { |
| BTIF_TRACE_ERROR1("%s Unable to create uinput device", __FUNCTION__); |
| close(fd); |
| return -1; |
| } |
| return fd; |
| } |
| |
| int init_uinput (void) |
| { |
| char *name = "AVRCP"; |
| |
| BTIF_TRACE_DEBUG1("%s", __FUNCTION__); |
| uinput_fd = uinput_create(name); |
| if (uinput_fd < 0) { |
| BTIF_TRACE_ERROR3("%s AVRCP: Failed to initialize uinput for %s (%d)", |
| __FUNCTION__, name, uinput_fd); |
| } else { |
| BTIF_TRACE_DEBUG3("%s AVRCP: Initialized uinput for %s (fd=%d)", |
| __FUNCTION__, name, uinput_fd); |
| } |
| return uinput_fd; |
| } |
| |
| void close_uinput (void) |
| { |
| BTIF_TRACE_DEBUG1("%s", __FUNCTION__); |
| if (uinput_fd > 0) { |
| ioctl(uinput_fd, UI_DEV_DESTROY); |
| |
| close(uinput_fd); |
| uinput_fd = -1; |
| } |
| } |
| |
| void handle_rc_features() |
| { |
| btrc_remote_features_t rc_features = BTRC_FEAT_NONE; |
| bt_bdaddr_t rc_addr; |
| bdcpy(rc_addr.address, btif_rc_cb.rc_addr); |
| |
| if (dev_blacklisted_for_absolute_volume(btif_rc_cb.rc_addr)) |
| { |
| btif_rc_cb.rc_features &= ~BTA_AV_FEAT_ADV_CTRL; |
| } |
| |
| if (btif_rc_cb.rc_features & BTA_AV_FEAT_BROWSE) |
| { |
| rc_features |= BTRC_FEAT_BROWSE; |
| } |
| if ( (btif_rc_cb.rc_features & BTA_AV_FEAT_ADV_CTRL) && |
| (btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG)) |
| { |
| rc_features |= BTRC_FEAT_ABSOLUTE_VOLUME; |
| } |
| if (btif_rc_cb.rc_features & BTA_AV_FEAT_METADATA) |
| { |
| rc_features |= BTRC_FEAT_METADATA; |
| } |
| BTIF_TRACE_DEBUG2("%s: rc_features=0x%x", __FUNCTION__, rc_features); |
| HAL_CBACK(bt_rc_callbacks, remote_features_cb, &rc_addr, rc_features) |
| |
| #if (AVRC_ADV_CTRL_INCLUDED == TRUE) |
| BTIF_TRACE_DEBUG1("Checking for feature flags in btif_rc_handler with label %d", |
| btif_rc_cb.rc_vol_label); |
| // Register for volume change on connect |
| if(btif_rc_cb.rc_features & BTA_AV_FEAT_ADV_CTRL && |
| btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG) |
| { |
| rc_transaction_t *p_transaction=NULL; |
| bt_status_t status = BT_STATUS_NOT_READY; |
| if(MAX_LABEL==btif_rc_cb.rc_vol_label) |
| { |
| status=get_transaction(&p_transaction); |
| } |
| else |
| { |
| p_transaction=get_transaction_by_lbl(btif_rc_cb.rc_vol_label); |
| if(NULL!=p_transaction) |
| { |
| BTIF_TRACE_DEBUG1("register_volumechange already in progress for label %d", |
| btif_rc_cb.rc_vol_label); |
| return; |
| } |
| else |
| status=get_transaction(&p_transaction); |
| } |
| |
| if(BT_STATUS_SUCCESS == status && NULL!=p_transaction) |
| { |
| btif_rc_cb.rc_vol_label=p_transaction->lbl; |
| register_volumechange(btif_rc_cb.rc_vol_label); |
| } |
| } |
| #endif |
| } |
| |
| |
| /*************************************************************************** |
| * Function handle_rc_connect |
| * |
| * - Argument: tBTA_AV_RC_OPEN RC open data structure |
| * |
| * - Description: RC connection event handler |
| * |
| ***************************************************************************/ |
| void handle_rc_connect (tBTA_AV_RC_OPEN *p_rc_open) |
| { |
| BTIF_TRACE_DEBUG2("%s: rc_handle: %d", __FUNCTION__, p_rc_open->rc_handle); |
| bt_status_t result = BT_STATUS_SUCCESS; |
| int i; |
| char bd_str[18]; |
| |
| if(p_rc_open->status == BTA_AV_SUCCESS) |
| { |
| memcpy(btif_rc_cb.rc_addr, p_rc_open->peer_addr, sizeof(BD_ADDR)); |
| btif_rc_cb.rc_features = p_rc_open->peer_features; |
| btif_rc_cb.rc_vol_label=MAX_LABEL; |
| btif_rc_cb.rc_volume=MAX_VOLUME; |
| |
| btif_rc_cb.rc_connected = TRUE; |
| btif_rc_cb.rc_handle = p_rc_open->rc_handle; |
| |
| /* on locally initiated connection we will get remote features as part of connect */ |
| if (btif_rc_cb.rc_features != 0) |
| handle_rc_features(); |
| |
| result = uinput_driver_check(); |
| if(result == BT_STATUS_SUCCESS) |
| { |
| init_uinput(); |
| } |
| } |
| else |
| { |
| BTIF_TRACE_ERROR2("%s Connect failed with error code: %d", |
| __FUNCTION__, p_rc_open->status); |
| btif_rc_cb.rc_connected = FALSE; |
| } |
| } |
| |
| /*************************************************************************** |
| * Function handle_rc_disconnect |
| * |
| * - Argument: tBTA_AV_RC_CLOSE RC close data structure |
| * |
| * - Description: RC disconnection event handler |
| * |
| ***************************************************************************/ |
| void handle_rc_disconnect (tBTA_AV_RC_CLOSE *p_rc_close) |
| { |
| BTIF_TRACE_DEBUG2("%s: rc_handle: %d", __FUNCTION__, p_rc_close->rc_handle); |
| |
| btif_rc_cb.rc_handle = 0; |
| btif_rc_cb.rc_connected = FALSE; |
| memset(btif_rc_cb.rc_addr, 0, sizeof(BD_ADDR)); |
| btif_rc_cb.rc_features = 0; |
| btif_rc_cb.rc_vol_label=MAX_LABEL; |
| btif_rc_cb.rc_volume=MAX_VOLUME; |
| init_all_transactions(); |
| close_uinput(); |
| } |
| |
| /*************************************************************************** |
| * Function handle_rc_passthrough_cmd |
| * |
| * - Argument: tBTA_AV_RC rc_id remote control command ID |
| * tBTA_AV_STATE key_state status of key press |
| * |
| * - Description: Remote control command handler |
| * |
| ***************************************************************************/ |
| void handle_rc_passthrough_cmd ( tBTA_AV_REMOTE_CMD *p_remote_cmd) |
| { |
| const char *status; |
| int pressed, i; |
| |
| BTIF_TRACE_DEBUG2("%s: p_remote_cmd->rc_id=%d", __FUNCTION__, p_remote_cmd->rc_id); |
| |
| /* If AVRC is open and peer sends PLAY but there is no AVDT, then we queue-up this PLAY */ |
| if (p_remote_cmd) |
| { |
| /* queue AVRC PLAY if GAVDTP Open notification to app is pending (2 second timer) */ |
| if ((p_remote_cmd->rc_id == BTA_AV_RC_PLAY) && (!btif_av_is_connected())) |
| { |
| if (p_remote_cmd->key_state == AVRC_STATE_PRESS) |
| { |
| APPL_TRACE_WARNING1("%s: AVDT not open, queuing the PLAY command", __FUNCTION__); |
| btif_rc_cb.rc_pending_play = TRUE; |
| } |
| return; |
| } |
| |
| if ((p_remote_cmd->rc_id == BTA_AV_RC_PAUSE) && (btif_rc_cb.rc_pending_play)) |
| { |
| APPL_TRACE_WARNING1("%s: Clear the pending PLAY on PAUSE received", __FUNCTION__); |
| btif_rc_cb.rc_pending_play = FALSE; |
| return; |
| } |
| } |
| if (p_remote_cmd->key_state == AVRC_STATE_RELEASE) { |
| status = "released"; |
| pressed = 0; |
| } else { |
| status = "pressed"; |
| pressed = 1; |
| } |
| |
| /* If this is Play/Pause command (press or release) before processing, check the following |
| * a voice call has ended recently |
| * the remote device is not of type headset |
| * If the above conditions meet, drop the Play/Pause command |
| * This fix is to interop with certain carkits which sends an automatic PLAY or PAUSE |
| * commands right after call ends |
| */ |
| if((p_remote_cmd->rc_id == BTA_AV_RC_PLAY || p_remote_cmd->rc_id == BTA_AV_RC_PAUSE)&& |
| (btif_hf_call_terminated_recently() == TRUE) && |
| (check_cod( (const bt_bdaddr_t*)&(btif_rc_cb.rc_addr), COD_AV_HEADSETS) != TRUE)) |
| { |
| BTIF_TRACE_DEBUG2("%s:Dropping the play/Pause command received right after call end cmd:%d", |
| __FUNCTION__,p_remote_cmd->rc_id); |
| return; |
| } |
| |
| if (p_remote_cmd->rc_id == BTA_AV_RC_FAST_FOR || p_remote_cmd->rc_id == BTA_AV_RC_REWIND) { |
| HAL_CBACK(bt_rc_callbacks, passthrough_cmd_cb, p_remote_cmd->rc_id, pressed); |
| return; |
| } |
| |
| for (i = 0; key_map[i].name != NULL; i++) { |
| if (p_remote_cmd->rc_id == key_map[i].avrcp) { |
| BTIF_TRACE_DEBUG3("%s: %s %s", __FUNCTION__, key_map[i].name, status); |
| |
| /* MusicPlayer uses a long_press_timeout of 1 second for PLAYPAUSE button |
| * and maps that to autoshuffle. So if for some reason release for PLAY/PAUSE |
| * comes 1 second after the press, the MediaPlayer UI goes into a bad state. |
| * The reason for the delay could be sniff mode exit or some AVDTP procedure etc. |
| * The fix is to generate a release right after the press and drown the 'actual' |
| * release. |
| */ |
| if ((key_map[i].release_quirk == 1) && (pressed == 0)) |
| { |
| BTIF_TRACE_DEBUG2("%s: AVRC %s Release Faked earlier, drowned now", |
| __FUNCTION__, key_map[i].name); |
| return; |
| } |
| send_key(uinput_fd, key_map[i].mapped_id, pressed); |
| if ((key_map[i].release_quirk == 1) && (pressed == 1)) |
| { |
| GKI_delay(30); // 30ms |
| BTIF_TRACE_DEBUG2("%s: AVRC %s Release quirk enabled, send release now", |
| __FUNCTION__, key_map[i].name); |
| send_key(uinput_fd, key_map[i].mapped_id, 0); |
| } |
| break; |
| } |
| } |
| |
| if (key_map[i].name == NULL) |
| BTIF_TRACE_ERROR3("%s AVRCP: unknown button 0x%02X %s", __FUNCTION__, |
| p_remote_cmd->rc_id, status); |
| } |
| |
| void handle_uid_changed_notification(tBTA_AV_META_MSG *pmeta_msg, tAVRC_COMMAND *pavrc_command) |
| { |
| tAVRC_RESPONSE avrc_rsp = {0}; |
| avrc_rsp.rsp.pdu = pavrc_command->pdu; |
| avrc_rsp.rsp.status = AVRC_STS_NO_ERROR; |
| avrc_rsp.rsp.opcode = pavrc_command->cmd.opcode; |
| |
| avrc_rsp.reg_notif.event_id = pavrc_command->reg_notif.event_id; |
| avrc_rsp.reg_notif.param.uid_counter = 0; |
| |
| send_metamsg_rsp(pmeta_msg->rc_handle, pmeta_msg->label, AVRC_RSP_INTERIM, &avrc_rsp); |
| send_metamsg_rsp(pmeta_msg->rc_handle, pmeta_msg->label, AVRC_RSP_CHANGED, &avrc_rsp); |
| |
| } |
| |
| |
| /*************************************************************************** |
| * Function handle_rc_metamsg_cmd |
| * |
| * - Argument: tBTA_AV_VENDOR Structure containing the received |
| * metamsg command |
| * |
| * - Description: Remote control metamsg command handler (AVRCP 1.3) |
| * |
| ***************************************************************************/ |
| void handle_rc_metamsg_cmd (tBTA_AV_META_MSG *pmeta_msg) |
| { |
| /* Parse the metamsg command and pass it on to BTL-IFS */ |
| UINT8 scratch_buf[512] = {0}; |
| tAVRC_COMMAND avrc_command = {0}; |
| tAVRC_STS status; |
| int param_len; |
| |
| BTIF_TRACE_EVENT1("+ %s", __FUNCTION__); |
| |
| if (pmeta_msg->p_msg->hdr.opcode != AVRC_OP_VENDOR) |
| { |
| BTIF_TRACE_WARNING1("Invalid opcode: %x", pmeta_msg->p_msg->hdr.opcode); |
| return; |
| } |
| if (pmeta_msg->len < 3) |
| { |
| BTIF_TRACE_WARNING2("Invalid length.Opcode: 0x%x, len: 0x%x", pmeta_msg->p_msg->hdr.opcode, |
| pmeta_msg->len); |
| return; |
| } |
| |
| if (pmeta_msg->code >= AVRC_RSP_NOT_IMPL) |
| { |
| #if (AVRC_ADV_CTRL_INCLUDED == TRUE) |
| { |
| rc_transaction_t *transaction=NULL; |
| transaction=get_transaction_by_lbl(pmeta_msg->label); |
| if(NULL!=transaction) |
| { |
| handle_rc_metamsg_rsp(pmeta_msg); |
| } |
| else |
| { |
| BTIF_TRACE_DEBUG3("%s:Discard vendor dependent rsp. code: %d label:%d.", |
| __FUNCTION__, pmeta_msg->code, pmeta_msg->label); |
| } |
| return; |
| } |
| #else |
| { |
| BTIF_TRACE_DEBUG3("%s:Received vendor dependent rsp. code: %d len: %d. Not processing it.", |
| __FUNCTION__, pmeta_msg->code, pmeta_msg->len); |
| return; |
| } |
| #endif |
| } |
| |
| status=AVRC_ParsCommand(pmeta_msg->p_msg, &avrc_command, scratch_buf, sizeof(scratch_buf)); |
| BTIF_TRACE_DEBUG3("Received vendor command.code,PDU and label: %d, %d,%d",pmeta_msg->code, |
| avrc_command.cmd.pdu, pmeta_msg->label); |
| |
| if (status != AVRC_STS_NO_ERROR) |
| { |
| /* return error */ |
| BTIF_TRACE_WARNING2("%s: Error in parsing received metamsg command. status: 0x%02x", |
| __FUNCTION__, status); |
| send_reject_response(pmeta_msg->rc_handle, pmeta_msg->label, avrc_command.pdu, status); |
| } |
| else |
| { |
| /* if RegisterNotification, add it to our registered queue */ |
| |
| if (avrc_command.cmd.pdu == AVRC_PDU_REGISTER_NOTIFICATION) |
| { |
| UINT8 event_id = avrc_command.reg_notif.event_id; |
| param_len = sizeof(tAVRC_REG_NOTIF_CMD); |
| BTIF_TRACE_EVENT4("%s:New register notification received.event_id:%s,label:0x%x,code:%x", |
| __FUNCTION__,dump_rc_notification_event_id(event_id), pmeta_msg->label,pmeta_msg->code); |
| btif_rc_cb.rc_notif[event_id-1].bNotify = TRUE; |
| btif_rc_cb.rc_notif[event_id-1].label = pmeta_msg->label; |
| |
| if(event_id == AVRC_EVT_UIDS_CHANGE) |
| { |
| handle_uid_changed_notification(pmeta_msg, &avrc_command); |
| return; |
| } |
| |
| } |
| |
| BTIF_TRACE_EVENT2("%s: Passing received metamsg command to app. pdu: %s", |
| __FUNCTION__, dump_rc_pdu(avrc_command.cmd.pdu)); |
| |
| /* Since handle_rc_metamsg_cmd() itself is called from |
| *btif context, no context switching is required. Invoke |
| * btif_rc_upstreams_evt directly from here. */ |
| btif_rc_upstreams_evt((uint16_t)avrc_command.cmd.pdu, &avrc_command, pmeta_msg->code, |
| pmeta_msg->label); |
| } |
| } |
| |
| /*************************************************************************** |
| ** |
| ** Function btif_rc_handler |
| ** |
| ** Description RC event handler |
| ** |
| ***************************************************************************/ |
| void btif_rc_handler(tBTA_AV_EVT event, tBTA_AV *p_data) |
| { |
| BTIF_TRACE_DEBUG2 ("%s event:%s", __FUNCTION__, dump_rc_event(event)); |
| switch (event) |
| { |
| case BTA_AV_RC_OPEN_EVT: |
| { |
| BTIF_TRACE_DEBUG1("Peer_features:%x", p_data->rc_open.peer_features); |
| handle_rc_connect( &(p_data->rc_open) ); |
| }break; |
| |
| case BTA_AV_RC_CLOSE_EVT: |
| { |
| handle_rc_disconnect( &(p_data->rc_close) ); |
| }break; |
| |
| case BTA_AV_REMOTE_CMD_EVT: |
| { |
| BTIF_TRACE_DEBUG2("rc_id:0x%x key_state:%d", p_data->remote_cmd.rc_id, |
| p_data->remote_cmd.key_state); |
| handle_rc_passthrough_cmd( (&p_data->remote_cmd) ); |
| } |
| break; |
| case BTA_AV_RC_FEAT_EVT: |
| { |
| BTIF_TRACE_DEBUG1("Peer_features:%x", p_data->rc_feat.peer_features); |
| btif_rc_cb.rc_features = p_data->rc_feat.peer_features; |
| handle_rc_features(); |
| } |
| break; |
| case BTA_AV_META_MSG_EVT: |
| { |
| BTIF_TRACE_DEBUG2("BTA_AV_META_MSG_EVT code:%d label:%d", p_data->meta_msg.code, |
| p_data->meta_msg.label); |
| BTIF_TRACE_DEBUG3(" company_id:0x%x len:%d handle:%d", p_data->meta_msg.company_id, |
| p_data->meta_msg.len, p_data->meta_msg.rc_handle); |
| /* handle the metamsg command */ |
| handle_rc_metamsg_cmd(&(p_data->meta_msg)); |
| } |
| break; |
| default: |
| BTIF_TRACE_DEBUG1("Unhandled RC event : 0x%x", event); |
| } |
| } |
| |
| /*************************************************************************** |
| ** |
| ** Function btif_rc_get_connected_peer |
| ** |
| ** Description Fetches the connected headset's BD_ADDR if any |
| ** |
| ***************************************************************************/ |
| BOOLEAN btif_rc_get_connected_peer(BD_ADDR peer_addr) |
| { |
| if (btif_rc_cb.rc_connected == TRUE) { |
| bdcpy(peer_addr, btif_rc_cb.rc_addr); |
| return TRUE; |
| } |
| return FALSE; |
| } |
| |
| /*************************************************************************** |
| ** |
| ** Function btif_rc_check_handle_pending_play |
| ** |
| ** Description Clears the queued PLAY command. if bSend is TRUE, forwards to app |
| ** |
| ***************************************************************************/ |
| |
| /* clear the queued PLAY command. if bSend is TRUE, forward to app */ |
| void btif_rc_check_handle_pending_play (BD_ADDR peer_addr, BOOLEAN bSendToApp) |
| { |
| BTIF_TRACE_DEBUG2("%s: bSendToApp=%d", __FUNCTION__, bSendToApp); |
| if (btif_rc_cb.rc_pending_play) |
| { |
| if (bSendToApp) |
| { |
| tBTA_AV_REMOTE_CMD remote_cmd; |
| APPL_TRACE_DEBUG1("%s: Sending queued PLAYED event to app", __FUNCTION__); |
| |
| memset (&remote_cmd, 0, sizeof(tBTA_AV_REMOTE_CMD)); |
| remote_cmd.rc_handle = btif_rc_cb.rc_handle; |
| remote_cmd.rc_id = AVRC_ID_PLAY; |
| remote_cmd.hdr.ctype = AVRC_CMD_CTRL; |
| remote_cmd.hdr.opcode = AVRC_OP_PASS_THRU; |
| |
| /* delay sending to app, else there is a timing issue in the framework, |
| ** which causes the audio to be on th device's speaker. Delay between |
| ** OPEN & RC_PLAYs |
| */ |
| GKI_delay (200); |
| /* send to app - both PRESSED & RELEASED */ |
| remote_cmd.key_state = AVRC_STATE_PRESS; |
| handle_rc_passthrough_cmd( &remote_cmd ); |
| |
| GKI_delay (100); |
| |
| remote_cmd.key_state = AVRC_STATE_RELEASE; |
| handle_rc_passthrough_cmd( &remote_cmd ); |
| } |
| btif_rc_cb.rc_pending_play = FALSE; |
| } |
| } |
| |
| /* Generic reject response */ |
| static void send_reject_response (UINT8 rc_handle, UINT8 label, UINT8 pdu, UINT8 status) |
| { |
| UINT8 ctype = AVRC_RSP_REJ; |
| tAVRC_RESPONSE avrc_rsp; |
| BT_HDR *p_msg = NULL; |
| memset (&avrc_rsp, 0, sizeof(tAVRC_RESPONSE)); |
| |
| avrc_rsp.rsp.opcode = opcode_from_pdu(pdu); |
| avrc_rsp.rsp.pdu = pdu; |
| avrc_rsp.rsp.status = status; |
| |
| if (AVRC_STS_NO_ERROR == (status = AVRC_BldResponse(rc_handle, &avrc_rsp, &p_msg)) ) |
| { |
| BTIF_TRACE_DEBUG4("%s:Sending error notification to handle:%d. pdu:%s,status:0x%02x", |
| __FUNCTION__, rc_handle, dump_rc_pdu(pdu), status); |
| BTA_AvMetaRsp(rc_handle, label, ctype, p_msg); |
| } |
| } |
| |
| /*************************************************************************** |
| * Function send_metamsg_rsp |
| * |
| * - Argument: |
| * rc_handle RC handle corresponding to the connected RC |
| * label Label of the RC response |
| * code Response type |
| * pmetamsg_resp Vendor response |
| * |
| * - Description: Remote control metamsg response handler (AVRCP 1.3) |
| * |
| ***************************************************************************/ |
| static void send_metamsg_rsp (UINT8 rc_handle, UINT8 label, tBTA_AV_CODE code, |
| tAVRC_RESPONSE *pmetamsg_resp) |
| { |
| UINT8 ctype; |
| tAVRC_STS status; |
| |
| if (!pmetamsg_resp) |
| { |
| BTIF_TRACE_WARNING1("%s: Invalid response received from application", __FUNCTION__); |
| return; |
| } |
| |
| BTIF_TRACE_EVENT5("+%s: rc_handle: %d, label: %d, code: 0x%02x, pdu: %s", __FUNCTION__, |
| rc_handle, label, code, dump_rc_pdu(pmetamsg_resp->rsp.pdu)); |
| |
| if (pmetamsg_resp->rsp.status != AVRC_STS_NO_ERROR) |
| { |
| ctype = AVRC_RSP_REJ; |
| } |
| else |
| { |
| if ( code < AVRC_RSP_NOT_IMPL) |
| { |
| if (code == AVRC_CMD_NOTIF) |
| { |
| ctype = AVRC_RSP_INTERIM; |
| } |
| else if (code == AVRC_CMD_STATUS) |
| { |
| ctype = AVRC_RSP_IMPL_STBL; |
| } |
| else |
| { |
| ctype = AVRC_RSP_ACCEPT; |
| } |
| } |
| else |
| { |
| ctype = code; |
| } |
| } |
| /* if response is for register_notification, make sure the rc has |
| actually registered for this */ |
| if((pmetamsg_resp->rsp.pdu == AVRC_PDU_REGISTER_NOTIFICATION) && (code == AVRC_RSP_CHANGED)) |
| { |
| BOOLEAN bSent = FALSE; |
| UINT8 event_id = pmetamsg_resp->reg_notif.event_id; |
| BOOLEAN bNotify = (btif_rc_cb.rc_connected) && (btif_rc_cb.rc_notif[event_id-1].bNotify); |
| |
| /* de-register this notification for a CHANGED response */ |
| btif_rc_cb.rc_notif[event_id-1].bNotify = FALSE; |
| BTIF_TRACE_DEBUG4("%s rc_handle: %d. event_id: 0x%02d bNotify:%u", __FUNCTION__, |
| btif_rc_cb.rc_handle, event_id, bNotify); |
| if (bNotify) |
| { |
| BT_HDR *p_msg = NULL; |
| tAVRC_STS status; |
| |
| if (AVRC_STS_NO_ERROR == (status = AVRC_BldResponse(btif_rc_cb.rc_handle, |
| pmetamsg_resp, &p_msg)) ) |
| { |
| BTIF_TRACE_DEBUG3("%s Sending notification to rc_handle: %d. event_id: 0x%02d", |
| __FUNCTION__, btif_rc_cb.rc_handle, event_id); |
| bSent = TRUE; |
| BTA_AvMetaRsp(btif_rc_cb.rc_handle, btif_rc_cb.rc_notif[event_id-1].label, |
| ctype, p_msg); |
| } |
| else |
| { |
| BTIF_TRACE_WARNING2("%s failed to build metamsg response. status: 0x%02x", |
| __FUNCTION__, status); |
| } |
| |
| } |
| |
| if (!bSent) |
| { |
| BTIF_TRACE_DEBUG2("%s: Notification not sent, as there are no RC connections or the \ |
| CT has not subscribed for event_id: %s", __FUNCTION__, dump_rc_notification_event_id(event_id)); |
| } |
| } |
| else |
| { |
| /* All other commands go here */ |
| |
| BT_HDR *p_msg = NULL; |
| tAVRC_STS status; |
| |
| status = AVRC_BldResponse(rc_handle, pmetamsg_resp, &p_msg); |
| |
| if (status == AVRC_STS_NO_ERROR) |
| { |
| BTA_AvMetaRsp(rc_handle, label, ctype, p_msg); |
| } |
| else |
| { |
| BTIF_TRACE_ERROR2("%s: failed to build metamsg response. status: 0x%02x", |
| __FUNCTION__, status); |
| } |
| } |
| } |
| |
| static UINT8 opcode_from_pdu(UINT8 pdu) |
| { |
| UINT8 opcode = 0; |
| |
| switch (pdu) |
| { |
| case AVRC_PDU_NEXT_GROUP: |
| case AVRC_PDU_PREV_GROUP: /* pass thru */ |
| opcode = AVRC_OP_PASS_THRU; |
| break; |
| |
| default: /* vendor */ |
| opcode = AVRC_OP_VENDOR; |
| break; |
| } |
| |
| return opcode; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function btif_rc_upstreams_evt |
| ** |
| ** Description Executes AVRC UPSTREAMS events in btif context. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| static void btif_rc_upstreams_evt(UINT16 event, tAVRC_COMMAND *pavrc_cmd, UINT8 ctype, UINT8 label) |
| { |
| BTIF_TRACE_EVENT5("%s pdu: %s handle: 0x%x ctype:%x label:%x", __FUNCTION__, |
| dump_rc_pdu(pavrc_cmd->pdu), btif_rc_cb.rc_handle, ctype, label); |
| |
| switch (event) |
| { |
| case AVRC_PDU_GET_PLAY_STATUS: |
| { |
| FILL_PDU_QUEUE(IDX_GET_PLAY_STATUS_RSP, ctype, label, TRUE) |
| HAL_CBACK(bt_rc_callbacks, get_play_status_cb); |
| } |
| break; |
| case AVRC_PDU_LIST_PLAYER_APP_ATTR: |
| case AVRC_PDU_LIST_PLAYER_APP_VALUES: |
| case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE: |
| case AVRC_PDU_SET_PLAYER_APP_VALUE: |
| case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT: |
| case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT: |
| { |
| /* TODO: Add support for Application Settings */ |
| send_reject_response (btif_rc_cb.rc_handle, label, pavrc_cmd->pdu, AVRC_STS_BAD_CMD); |
| } |
| break; |
| case AVRC_PDU_GET_ELEMENT_ATTR: |
| { |
| btrc_media_attr_t element_attrs[BTRC_MAX_ELEM_ATTR_SIZE]; |
| UINT8 num_attr; |
| memset(&element_attrs, 0, sizeof(element_attrs)); |
| if (pavrc_cmd->get_elem_attrs.num_attr == 0) |
| { |
| /* CT requests for all attributes */ |
| int attr_cnt; |
| num_attr = BTRC_MAX_ELEM_ATTR_SIZE; |
| for (attr_cnt = 0; attr_cnt < BTRC_MAX_ELEM_ATTR_SIZE; attr_cnt++) |
| { |
| element_attrs[attr_cnt] = attr_cnt + 1; |
| } |
| } |
| else if (pavrc_cmd->get_elem_attrs.num_attr == 0xFF) |
| { |
| /* 0xff indicates, no attributes requested - reject */ |
| send_reject_response (btif_rc_cb.rc_handle, label, pavrc_cmd->pdu, |
| AVRC_STS_BAD_PARAM); |
| return; |
| } |
| else |
| { |
| num_attr = pavrc_cmd->get_elem_attrs.num_attr; |
| memcpy(element_attrs, pavrc_cmd->get_elem_attrs.attrs, sizeof(UINT32) |
| *pavrc_cmd->get_elem_attrs.num_attr); |
| } |
| FILL_PDU_QUEUE(IDX_GET_ELEMENT_ATTR_RSP, ctype, label, TRUE); |
| HAL_CBACK(bt_rc_callbacks, get_element_attr_cb, num_attr, element_attrs); |
| } |
| break; |
| case AVRC_PDU_REGISTER_NOTIFICATION: |
| { |
| if(pavrc_cmd->reg_notif.event_id == BTRC_EVT_PLAY_POS_CHANGED && |
| pavrc_cmd->reg_notif.param == 0) |
| { |
| BTIF_TRACE_WARNING1("%s Device registering position changed with illegal param 0.", |
| __FUNCTION__); |
| send_reject_response (btif_rc_cb.rc_handle, label, pavrc_cmd->pdu, AVRC_STS_BAD_PARAM); |
| /* de-register this notification for a rejected response */ |
| btif_rc_cb.rc_notif[BTRC_EVT_PLAY_POS_CHANGED - 1].bNotify = FALSE; |
| return; |
| } |
| HAL_CBACK(bt_rc_callbacks, register_notification_cb, pavrc_cmd->reg_notif.event_id, |
| pavrc_cmd->reg_notif.param); |
| } |
| break; |
| case AVRC_PDU_INFORM_DISPLAY_CHARSET: |
| { |
| tAVRC_RESPONSE avrc_rsp; |
| BTIF_TRACE_EVENT1("%s() AVRC_PDU_INFORM_DISPLAY_CHARSET", __FUNCTION__); |
| if(btif_rc_cb.rc_connected == TRUE) |
| { |
| memset(&(avrc_rsp.inform_charset), 0, sizeof(tAVRC_RSP)); |
| avrc_rsp.inform_charset.opcode=opcode_from_pdu(AVRC_PDU_INFORM_DISPLAY_CHARSET); |
| avrc_rsp.inform_charset.pdu=AVRC_PDU_INFORM_DISPLAY_CHARSET; |
| avrc_rsp.inform_charset.status=AVRC_STS_NO_ERROR; |
| send_metamsg_rsp(btif_rc_cb.rc_handle, label, ctype, &avrc_rsp); |
| } |
| } |
| break; |
| default: |
| { |
| send_reject_response (btif_rc_cb.rc_handle, label, pavrc_cmd->pdu, |
| (pavrc_cmd->pdu == AVRC_PDU_SEARCH)?AVRC_STS_SEARCH_NOT_SUP:AVRC_STS_BAD_CMD); |
| return; |
| } |
| break; |
| } |
| |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function btif_rc_upstreams_rsp_evt |
| ** |
| ** Description Executes AVRC UPSTREAMS response events in btif context. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| static void btif_rc_upstreams_rsp_evt(UINT16 event, tAVRC_RESPONSE *pavrc_resp, UINT8 ctype, UINT8 label) |
| { |
| BTIF_TRACE_EVENT5("%s pdu: %s handle: 0x%x ctype:%x label:%x", __FUNCTION__, |
| dump_rc_pdu(pavrc_resp->pdu), btif_rc_cb.rc_handle, ctype, label); |
| |
| #if (AVRC_ADV_CTRL_INCLUDED == TRUE) |
| switch (event) |
| { |
| case AVRC_PDU_REGISTER_NOTIFICATION: |
| { |
| if(AVRC_RSP_CHANGED==ctype) |
| btif_rc_cb.rc_volume=pavrc_resp->reg_notif.param.volume; |
| HAL_CBACK(bt_rc_callbacks, volume_change_cb, pavrc_resp->reg_notif.param.volume,ctype) |
| } |
| break; |
| |
| case AVRC_PDU_SET_ABSOLUTE_VOLUME: |
| { |
| BTIF_TRACE_DEBUG2("Set absolute volume change event received: volume %d,ctype %d", |
| pavrc_resp->volume.volume,ctype); |
| if(AVRC_RSP_ACCEPT==ctype) |
| btif_rc_cb.rc_volume=pavrc_resp->volume.volume; |
| HAL_CBACK(bt_rc_callbacks,volume_change_cb,pavrc_resp->volume.volume,ctype) |
| } |
| break; |
| |
| default: |
| return; |
| } |
| #endif |
| } |
| |
| /************************************************************************************ |
| ** AVRCP API Functions |
| ************************************************************************************/ |
| |
| /******************************************************************************* |
| ** |
| ** Function init |
| ** |
| ** Description Initializes the AVRC interface |
| ** |
| ** Returns bt_status_t |
| ** |
| *******************************************************************************/ |
| static bt_status_t init(btrc_callbacks_t* callbacks ) |
| { |
| BTIF_TRACE_EVENT1("## %s ##", __FUNCTION__); |
| bt_status_t result = BT_STATUS_SUCCESS; |
| |
| if (bt_rc_callbacks) |
| return BT_STATUS_DONE; |
| |
| bt_rc_callbacks = callbacks; |
| memset (&btif_rc_cb, 0, sizeof(btif_rc_cb)); |
| btif_rc_cb.rc_vol_label=MAX_LABEL; |
| btif_rc_cb.rc_volume=MAX_VOLUME; |
| lbl_init(); |
| |
| return result; |
| } |
| |
| /*************************************************************************** |
| ** |
| ** Function get_play_status_rsp |
| ** |
| ** Description Returns the current play status. |
| ** This method is called in response to |
| ** GetPlayStatus request. |
| ** |
| ** Returns bt_status_t |
| ** |
| ***************************************************************************/ |
| static bt_status_t get_play_status_rsp(btrc_play_status_t play_status, uint32_t song_len, |
| uint32_t song_pos) |
| { |
| tAVRC_RESPONSE avrc_rsp; |
| UINT32 i; |
| CHECK_RC_CONNECTED |
| memset(&(avrc_rsp.get_play_status), 0, sizeof(tAVRC_GET_PLAY_STATUS_RSP)); |
| avrc_rsp.get_play_status.song_len = song_len; |
| avrc_rsp.get_play_status.song_pos = song_pos; |
| avrc_rsp.get_play_status.play_status = play_status; |
| |
| avrc_rsp.get_play_status.pdu = AVRC_PDU_GET_PLAY_STATUS; |
| avrc_rsp.get_play_status.opcode = opcode_from_pdu(AVRC_PDU_GET_PLAY_STATUS); |
| avrc_rsp.get_play_status.status = AVRC_STS_NO_ERROR; |
| /* Send the response */ |
| SEND_METAMSG_RSP(IDX_GET_PLAY_STATUS_RSP, &avrc_rsp); |
| return BT_STATUS_SUCCESS; |
| } |
| |
| /*************************************************************************** |
| ** |
| ** Function get_element_attr_rsp |
| ** |
| ** Description Returns the current songs' element attributes |
| ** in text. |
| ** |
| ** Returns bt_status_t |
| ** |
| ***************************************************************************/ |
| static bt_status_t get_element_attr_rsp(uint8_t num_attr, btrc_element_attr_val_t *p_attrs) |
| { |
| tAVRC_RESPONSE avrc_rsp; |
| UINT32 i; |
| uint8_t j; |
| tAVRC_ATTR_ENTRY element_attrs[BTRC_MAX_ELEM_ATTR_SIZE]; |
| CHECK_RC_CONNECTED |
| memset(element_attrs, 0, sizeof(tAVRC_ATTR_ENTRY) * num_attr); |
| |
| if (num_attr == 0) |
| { |
| avrc_rsp.get_play_status.status = AVRC_STS_BAD_PARAM; |
| } |
| else |
| { |
| for (i=0; i<num_attr; i++) { |
| element_attrs[i].attr_id = p_attrs[i].attr_id; |
| element_attrs[i].name.charset_id = AVRC_CHARSET_ID_UTF8; |
| element_attrs[i].name.str_len = (UINT16)strlen((char *)p_attrs[i].text); |
| element_attrs[i].name.p_str = p_attrs[i].text; |
| BTIF_TRACE_DEBUG5("%s attr_id:0x%x, charset_id:0x%x, str_len:%d, str:%s", |
| __FUNCTION__, (unsigned int)element_attrs[i].attr_id, |
| element_attrs[i].name.charset_id, element_attrs[i].name.str_len, |
| element_attrs[i].name.p_str); |
| } |
| avrc_rsp.get_play_status.status = AVRC_STS_NO_ERROR; |
| } |
| avrc_rsp.get_elem_attrs.num_attr = num_attr; |
| avrc_rsp.get_elem_attrs.p_attrs = element_attrs; |
| avrc_rsp.get_elem_attrs.pdu = AVRC_PDU_GET_ELEMENT_ATTR; |
| avrc_rsp.get_elem_attrs.opcode = opcode_from_pdu(AVRC_PDU_GET_ELEMENT_ATTR); |
| /* Send the response */ |
| SEND_METAMSG_RSP(IDX_GET_ELEMENT_ATTR_RSP, &avrc_rsp); |
| return BT_STATUS_SUCCESS; |
| } |
| |
| /*************************************************************************** |
| ** |
| ** Function register_notification_rsp |
| ** |
| ** Description Response to the register notification request. |
| ** in text. |
| ** |
| ** Returns bt_status_t |
| ** |
| ***************************************************************************/ |
| static bt_status_t register_notification_rsp(btrc_event_id_t event_id, |
| btrc_notification_type_t type, btrc_register_notification_t *p_param) |
| { |
| tAVRC_RESPONSE avrc_rsp; |
| CHECK_RC_CONNECTED |
| BTIF_TRACE_EVENT2("## %s ## event_id:%s", __FUNCTION__, dump_rc_notification_event_id(event_id)); |
| memset(&(avrc_rsp.reg_notif), 0, sizeof(tAVRC_REG_NOTIF_RSP)); |
| avrc_rsp.reg_notif.event_id = event_id; |
| |
| switch(event_id) |
| { |
| case BTRC_EVT_PLAY_STATUS_CHANGED: |
| avrc_rsp.reg_notif.param.play_status = p_param->play_status; |
| break; |
| case BTRC_EVT_TRACK_CHANGE: |
| memcpy(&(avrc_rsp.reg_notif.param.track), &(p_param->track), sizeof(btrc_uid_t)); |
| break; |
| case BTRC_EVT_PLAY_POS_CHANGED: |
| avrc_rsp.reg_notif.param.play_pos = p_param->song_pos; |
| break; |
| default: |
| BTIF_TRACE_WARNING2("%s : Unhandled event ID : 0x%x", __FUNCTION__, event_id); |
| return BT_STATUS_UNHANDLED; |
| } |
| |
| avrc_rsp.reg_notif.pdu = AVRC_PDU_REGISTER_NOTIFICATION; |
| avrc_rsp.reg_notif.opcode = opcode_from_pdu(AVRC_PDU_REGISTER_NOTIFICATION); |
| avrc_rsp.get_play_status.status = AVRC_STS_NO_ERROR; |
| |
| /* Send the response. */ |
| send_metamsg_rsp(btif_rc_cb.rc_handle, btif_rc_cb.rc_notif[event_id-1].label, |
| ((type == BTRC_NOTIFICATION_TYPE_INTERIM)?AVRC_CMD_NOTIF:AVRC_RSP_CHANGED), &avrc_rsp); |
| return BT_STATUS_SUCCESS; |
| } |
| |
| /*************************************************************************** |
| ** |
| ** Function set_volume |
| ** |
| ** Description Send current volume setting to remote side. |
| ** Support limited to SetAbsoluteVolume |
| ** This can be enhanced to support Relative Volume (AVRCP 1.0). |
| ** With RelateVolume, we will send VOLUME_UP/VOLUME_DOWN |
| ** as opposed to absolute volume level |
| ** volume: Should be in the range 0-127. bit7 is reseved and cannot be set |
| ** |
| ** Returns bt_status_t |
| ** |
| ***************************************************************************/ |
| static bt_status_t set_volume(uint8_t volume) |
| { |
| BTIF_TRACE_DEBUG1("%s", __FUNCTION__); |
| CHECK_RC_CONNECTED |
| tAVRC_STS status = BT_STATUS_UNSUPPORTED; |
| rc_transaction_t *p_transaction=NULL; |
| |
| if(btif_rc_cb.rc_volume==volume) |
| { |
| status=BT_STATUS_DONE; |
| BTIF_TRACE_ERROR2("%s: volume value already set earlier: 0x%02x",__FUNCTION__, volume); |
| return status; |
| } |
| |
| if ((btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG) && |
| (btif_rc_cb.rc_features & BTA_AV_FEAT_ADV_CTRL)) |
| { |
| tAVRC_COMMAND avrc_cmd = {0}; |
| BT_HDR *p_msg = NULL; |
| |
| BTIF_TRACE_DEBUG2("%s: Peer supports absolute volume. newVolume=%d", __FUNCTION__, volume); |
| avrc_cmd.volume.opcode = AVRC_OP_VENDOR; |
| avrc_cmd.volume.pdu = AVRC_PDU_SET_ABSOLUTE_VOLUME; |
| avrc_cmd.volume.status = AVRC_STS_NO_ERROR; |
| avrc_cmd.volume.volume = volume; |
| |
| if (AVRC_BldCommand(&avrc_cmd, &p_msg) == AVRC_STS_NO_ERROR) |
| { |
| bt_status_t tran_status=get_transaction(&p_transaction); |
| if(BT_STATUS_SUCCESS == tran_status && NULL!=p_transaction) |
| { |
| BTIF_TRACE_DEBUG2("%s msgreq being sent out with label %d", |
| __FUNCTION__,p_transaction->lbl); |
| BTA_AvMetaCmd(btif_rc_cb.rc_handle,p_transaction->lbl, AVRC_CMD_CTRL, p_msg); |
| status = BT_STATUS_SUCCESS; |
| } |
| else |
| { |
| if(NULL!=p_msg) |
| GKI_freebuf(p_msg); |
| BTIF_TRACE_ERROR2("%s: failed to obtain transaction details. status: 0x%02x", |
| __FUNCTION__, tran_status); |
| status = BT_STATUS_FAIL; |
| } |
| } |
| else |
| { |
| BTIF_TRACE_ERROR2("%s: failed to build absolute volume command. status: 0x%02x", |
| __FUNCTION__, status); |
| status = BT_STATUS_FAIL; |
| } |
| } |
| else |
| status=BT_STATUS_NOT_READY; |
| return status; |
| } |
| |
| |
| /*************************************************************************** |
| ** |
| ** Function register_volumechange |
| ** |
| ** Description Register for volume change notification from remote side. |
| ** |
| ** Returns void |
| ** |
| ***************************************************************************/ |
| |
| static void register_volumechange (UINT8 lbl) |
| { |
| tAVRC_COMMAND avrc_cmd = {0}; |
| BT_HDR *p_msg = NULL; |
| tAVRC_STS BldResp=AVRC_STS_BAD_CMD; |
| UINT16 rv = 0; |
| bt_status_t tran_status; |
| rc_transaction_t *p_transaction=NULL; |
| |
| BTIF_TRACE_DEBUG2("%s called with label:%d",__FUNCTION__,lbl); |
| |
| avrc_cmd.cmd.opcode=0x00; |
| avrc_cmd.pdu = AVRC_PDU_REGISTER_NOTIFICATION; |
| avrc_cmd.reg_notif.event_id = AVRC_EVT_VOLUME_CHANGE; |
| avrc_cmd.reg_notif.status = AVRC_STS_NO_ERROR; |
| |
| BldResp=AVRC_BldCommand(&avrc_cmd, &p_msg); |
| if(AVRC_STS_NO_ERROR==BldResp && p_msg) |
| { |
| p_transaction=get_transaction_by_lbl(lbl); |
| if(NULL!=p_transaction) |
| { |
| BTA_AvMetaCmd(btif_rc_cb.rc_handle,p_transaction->lbl, AVRC_CMD_NOTIF, p_msg); |
| BTIF_TRACE_DEBUG1("%s:BTA_AvMetaCmd called",__FUNCTION__); |
| } |
| else |
| { |
| if(NULL!=p_msg) |
| GKI_freebuf(p_msg); |
| BTIF_TRACE_ERROR2("%s transaction not obtained with label: %d",__FUNCTION__,lbl); |
| } |
| } |
| else |
| BTIF_TRACE_ERROR2("%s failed to build command:%d",__FUNCTION__,BldResp); |
| } |
| |
| |
| /*************************************************************************** |
| ** |
| ** Function handle_rc_metamsg_rsp |
| ** |
| ** Description Handle RC metamessage response |
| ** |
| ** Returns void |
| ** |
| ***************************************************************************/ |
| static void handle_rc_metamsg_rsp(tBTA_AV_META_MSG *pmeta_msg) |
| { |
| tAVRC_RESPONSE avrc_response = {0}; |
| UINT8 scratch_buf[512] = {0}; |
| tAVRC_STS status = BT_STATUS_UNSUPPORTED; |
| |
| if(AVRC_OP_VENDOR==pmeta_msg->p_msg->hdr.opcode &&(AVRC_RSP_CHANGED==pmeta_msg->code |
| || AVRC_RSP_INTERIM==pmeta_msg->code || AVRC_RSP_ACCEPT==pmeta_msg->code |
| || AVRC_RSP_REJ==pmeta_msg->code || AVRC_RSP_NOT_IMPL==pmeta_msg->code)) |
| { |
| status=AVRC_ParsResponse(pmeta_msg->p_msg, &avrc_response, scratch_buf, sizeof(scratch_buf)); |
| BTIF_TRACE_DEBUG6("%s: code %d,event ID %d,PDU %x,parsing status %d, label:%d", |
| __FUNCTION__,pmeta_msg->code,avrc_response.reg_notif.event_id,avrc_response.reg_notif.pdu, |
| status, pmeta_msg->label); |
| |
| if (status != AVRC_STS_NO_ERROR) |
| { |
| if(AVRC_PDU_REGISTER_NOTIFICATION==avrc_response.rsp.pdu |
| && AVRC_EVT_VOLUME_CHANGE==avrc_response.reg_notif.event_id |
| && btif_rc_cb.rc_vol_label==pmeta_msg->label) |
| { |
| btif_rc_cb.rc_vol_label=MAX_LABEL; |
| release_transaction(btif_rc_cb.rc_vol_label); |
| } |
| else if(AVRC_PDU_SET_ABSOLUTE_VOLUME==avrc_response.rsp.pdu) |
| { |
| release_transaction(pmeta_msg->label); |
| } |
| return; |
| } |
| else if(AVRC_PDU_REGISTER_NOTIFICATION==avrc_response.rsp.pdu |
| && AVRC_EVT_VOLUME_CHANGE==avrc_response.reg_notif.event_id |
| && btif_rc_cb.rc_vol_label!=pmeta_msg->label) |
| { |
| // Just discard the message, if the device sends back with an incorrect label |
| BTIF_TRACE_DEBUG3("%s:Discarding register notfn in rsp.code: %d and label %d", |
| __FUNCTION__, pmeta_msg->code, pmeta_msg->label); |
| return; |
| } |
| } |
| else |
| { |
| BTIF_TRACE_DEBUG3("%s:Received vendor dependent in adv ctrl rsp. code: %d len: %d. Not processing it.", |
| __FUNCTION__, pmeta_msg->code, pmeta_msg->len); |
| return; |
| } |
| |
| if(AVRC_PDU_REGISTER_NOTIFICATION==avrc_response.rsp.pdu |
| && AVRC_EVT_VOLUME_CHANGE==avrc_response.reg_notif.event_id |
| && AVRC_RSP_CHANGED==pmeta_msg->code) |
| { |
| /* re-register for volume change notification */ |
| // Do not re-register for rejected case, as it might get into endless loop |
| register_volumechange(btif_rc_cb.rc_vol_label); |
| } |
| else if(AVRC_PDU_SET_ABSOLUTE_VOLUME==avrc_response.rsp.pdu) |
| { |
| /* free up the label here */ |
| release_transaction(pmeta_msg->label); |
| } |
| |
| BTIF_TRACE_EVENT2("%s: Passing received metamsg response to app. pdu: %s", |
| __FUNCTION__, dump_rc_pdu(avrc_response.pdu)); |
| btif_rc_upstreams_rsp_evt((uint16_t)avrc_response.rsp.pdu, &avrc_response, pmeta_msg->code, |
| pmeta_msg->label); |
| } |
| |
| |
| /*************************************************************************** |
| ** |
| ** Function cleanup |
| ** |
| ** Description Closes the AVRC interface |
| ** |
| ** Returns void |
| ** |
| ***************************************************************************/ |
| static void cleanup() |
| { |
| BTIF_TRACE_EVENT1("## %s ##", __FUNCTION__); |
| close_uinput(); |
| if (bt_rc_callbacks) |
| { |
| bt_rc_callbacks = NULL; |
| } |
| memset(&btif_rc_cb, 0, sizeof(btif_rc_cb_t)); |
| lbl_destroy(); |
| } |
| |
| |
| static const btrc_interface_t bt_rc_interface = { |
| sizeof(bt_rc_interface), |
| init, |
| get_play_status_rsp, |
| NULL, /* list_player_app_attr_rsp */ |
| NULL, /* list_player_app_value_rsp */ |
| NULL, /* get_player_app_value_rsp */ |
| NULL, /* get_player_app_attr_text_rsp */ |
| NULL, /* get_player_app_value_text_rsp */ |
| get_element_attr_rsp, |
| NULL, /* set_player_app_value_rsp */ |
| register_notification_rsp, |
| set_volume, |
| cleanup, |
| }; |
| |
| /******************************************************************************* |
| ** |
| ** Function btif_rc_get_interface |
| ** |
| ** Description Get the AVRCP callback interface |
| ** |
| ** Returns btav_interface_t |
| ** |
| *******************************************************************************/ |
| const btrc_interface_t *btif_rc_get_interface(void) |
| { |
| BTIF_TRACE_EVENT1("%s", __FUNCTION__); |
| return &bt_rc_interface; |
| } |
| |
| /******************************************************************************* |
| ** Function initialize_transaction |
| ** |
| ** Description Initializes fields of the transaction structure |
| ** |
| ** Returns void |
| *******************************************************************************/ |
| static void initialize_transaction(int lbl) |
| { |
| pthread_mutex_lock(&device.lbllock); |
| if(lbl < MAX_TRANSACTIONS_PER_SESSION) |
| { |
| device.transaction[lbl].lbl = lbl; |
| device.transaction[lbl].in_use=FALSE; |
| device.transaction[lbl].handle=0; |
| } |
| pthread_mutex_unlock(&device.lbllock); |
| } |
| |
| /******************************************************************************* |
| ** Function lbl_init |
| ** |
| ** Description Initializes label structures and mutexes. |
| ** |
| ** Returns void |
| *******************************************************************************/ |
| void lbl_init() |
| { |
| memset(&device,0,sizeof(rc_device_t)); |
| pthread_mutexattr_t attr; |
| pthread_mutexattr_init(&attr); |
| pthread_mutex_init(&(device.lbllock), &attr); |
| pthread_mutexattr_destroy(&attr); |
| init_all_transactions(); |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function init_all_transactions |
| ** |
| ** Description Initializes all transactions |
| ** |
| ** Returns void |
| *******************************************************************************/ |
| void init_all_transactions() |
| { |
| UINT8 txn_indx=0; |
| for(txn_indx=0; txn_indx < MAX_TRANSACTIONS_PER_SESSION; txn_indx++) |
| { |
| initialize_transaction(txn_indx); |
| } |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function get_transaction_by_lbl |
| ** |
| ** Description Will return a transaction based on the label. If not inuse |
| ** will return an error. |
| ** |
| ** Returns bt_status_t |
| *******************************************************************************/ |
| rc_transaction_t *get_transaction_by_lbl(UINT8 lbl) |
| { |
| rc_transaction_t *transaction = NULL; |
| pthread_mutex_lock(&device.lbllock); |
| |
| /* Determine if this is a valid label */ |
| if (lbl < MAX_TRANSACTIONS_PER_SESSION) |
| { |
| if (FALSE==device.transaction[lbl].in_use) |
| { |
| transaction = NULL; |
| } |
| else |
| { |
| transaction = &(device.transaction[lbl]); |
| BTIF_TRACE_DEBUG2("%s: Got transaction.label: %d",__FUNCTION__,lbl); |
| } |
| } |
| |
| pthread_mutex_unlock(&device.lbllock); |
| return transaction; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function get_transaction |
| ** |
| ** Description Obtains the transaction details. |
| ** |
| ** Returns bt_status_t |
| *******************************************************************************/ |
| |
| bt_status_t get_transaction(rc_transaction_t **ptransaction) |
| { |
| bt_status_t result = BT_STATUS_NOMEM; |
| UINT8 i=0; |
| pthread_mutex_lock(&device.lbllock); |
| |
| // Check for unused transactions |
| for (i=0; i<MAX_TRANSACTIONS_PER_SESSION; i++) |
| { |
| if (FALSE==device.transaction[i].in_use) |
| { |
| BTIF_TRACE_DEBUG2("%s:Got transaction.label: %d",__FUNCTION__,device.transaction[i].lbl); |
| device.transaction[i].in_use = TRUE; |
| *ptransaction = &(device.transaction[i]); |
| result = BT_STATUS_SUCCESS; |
| break; |
| } |
| } |
| |
| pthread_mutex_unlock(&device.lbllock); |
| return result; |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function release_transaction |
| ** |
| ** Description Will release a transaction for reuse |
| ** |
| ** Returns bt_status_t |
| *******************************************************************************/ |
| void release_transaction(UINT8 lbl) |
| { |
| rc_transaction_t *transaction = get_transaction_by_lbl(lbl); |
| |
| /* If the transaction is in use... */ |
| if (transaction != NULL) |
| { |
| BTIF_TRACE_DEBUG2("%s: lbl: %d", __FUNCTION__, lbl); |
| initialize_transaction(lbl); |
| } |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function lbl_destroy |
| ** |
| ** Description Cleanup of the mutex |
| ** |
| ** Returns void |
| *******************************************************************************/ |
| void lbl_destroy() |
| { |
| pthread_mutex_destroy(&(device.lbllock)); |
| } |
| |
| /******************************************************************************* |
| ** Function dev_blacklisted_for_absolute_volume |
| ** |
| ** Description Blacklist Devices that donot handle absolute volume well |
| ** We are blacklisting all the devices that are not in whitelist |
| ** |
| ** Returns True if the device is in the list |
| *******************************************************************************/ |
| static BOOLEAN dev_blacklisted_for_absolute_volume(BD_ADDR peer_dev) |
| { |
| int i; |
| int whitelist_size = sizeof(rc_white_addr_prefix)/sizeof(rc_white_addr_prefix[0]); |
| for (i = 0; i < whitelist_size; i++) { |
| if (rc_white_addr_prefix[i][0] == peer_dev[0] && |
| rc_white_addr_prefix[i][1] == peer_dev[1] && |
| rc_white_addr_prefix[i][2] == peer_dev[2]) { |
| BTIF_TRACE_DEBUG3("whitelist absolute volume for %02x:%02x:%02x", |
| peer_dev[0], peer_dev[1], peer_dev[2]); |
| return FALSE; |
| } |
| } |
| BTIF_TRACE_WARNING3("blacklist absolute volume for %02x:%02x:%02x", |
| peer_dev[0], peer_dev[1], peer_dev[2]); |
| return TRUE; |
| } |
