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644 lines
23 KiB
644 lines
23 KiB
/******************************************************************************
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*
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* Copyright 2003-2016 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 "avrc_api.h"
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#include "avrc_defs.h"
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#include "avrc_int.h"
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#include "bt_common.h"
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#include "osi/include/log.h"
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/*****************************************************************************
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* Global data
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****************************************************************************/
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/*******************************************************************************
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*
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* Function avrc_ctrl_pars_vendor_cmd
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*
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* Description This function parses the vendor specific commands defined by
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* Bluetooth SIG for AVRCP Conroller.
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*
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* Returns AVRC_STS_NO_ERROR, if the message in p_data is parsed
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* successfully.
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* Otherwise, the error code defined by AVRCP 1.4
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*
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******************************************************************************/
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static tAVRC_STS avrc_ctrl_pars_vendor_cmd(tAVRC_MSG_VENDOR* p_msg,
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tAVRC_COMMAND* p_result) {
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tAVRC_STS status = AVRC_STS_NO_ERROR;
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if (p_msg->vendor_len < 4) { // 4 == pdu + reserved byte + len as uint16
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AVRC_TRACE_WARNING("%s: message length %d too short: must be at least 4",
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__func__, p_msg->vendor_len);
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android_errorWriteLog(0x534e4554, "205571133");
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return AVRC_STS_INTERNAL_ERR;
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}
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uint8_t* p = p_msg->p_vendor_data;
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p_result->pdu = *p++;
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AVRC_TRACE_DEBUG("%s pdu:0x%x", __func__, p_result->pdu);
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if (!AVRC_IsValidAvcType(p_result->pdu, p_msg->hdr.ctype)) {
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AVRC_TRACE_DEBUG("%s detects wrong AV/C type!", __func__);
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status = AVRC_STS_BAD_CMD;
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}
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p++; /* skip the reserved byte */
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uint16_t len;
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BE_STREAM_TO_UINT16(len, p);
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if ((len + 4) != (p_msg->vendor_len)) {
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status = AVRC_STS_INTERNAL_ERR;
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}
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if (status != AVRC_STS_NO_ERROR) return status;
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switch (p_result->pdu) {
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case AVRC_PDU_SET_ABSOLUTE_VOLUME: {
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if (len != 1)
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status = AVRC_STS_INTERNAL_ERR;
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else {
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BE_STREAM_TO_UINT8(p_result->volume.volume, p);
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p_result->volume.volume = AVRC_MAX_VOLUME & p_result->volume.volume;
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}
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break;
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}
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case AVRC_PDU_REGISTER_NOTIFICATION: /* 0x31 */
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if (len < 5) return AVRC_STS_INTERNAL_ERR;
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BE_STREAM_TO_UINT8(p_result->reg_notif.event_id, p);
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BE_STREAM_TO_UINT32(p_result->reg_notif.param, p);
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if (p_result->reg_notif.event_id == 0 ||
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p_result->reg_notif.event_id > AVRC_NUM_NOTIF_EVENTS) {
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android_errorWriteLog(0x534e4554, "181860042");
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status = AVRC_STS_BAD_PARAM;
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}
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break;
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default:
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status = AVRC_STS_BAD_CMD;
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break;
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}
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return status;
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}
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/*******************************************************************************
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*
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* Function avrc_pars_vendor_cmd
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*
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* Description This function parses the vendor specific commands defined by
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* Bluetooth SIG
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*
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* Returns AVRC_STS_NO_ERROR, if the message in p_data is parsed
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* successfully.
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* Otherwise, the error code defined by AVRCP 1.4
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*
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******************************************************************************/
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static tAVRC_STS avrc_pars_vendor_cmd(tAVRC_MSG_VENDOR* p_msg,
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tAVRC_COMMAND* p_result, uint8_t* p_buf,
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uint16_t buf_len) {
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tAVRC_STS status = AVRC_STS_NO_ERROR;
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uint8_t* p;
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uint16_t len;
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uint8_t xx, yy;
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uint8_t* p_u8;
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uint16_t* p_u16;
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uint32_t u32, u32_2, *p_u32;
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tAVRC_APP_SETTING* p_app_set;
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uint16_t size_needed;
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/* Check the vendor data */
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if (p_msg->vendor_len == 0) return AVRC_STS_NO_ERROR;
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if (p_msg->p_vendor_data == NULL) return AVRC_STS_INTERNAL_ERR;
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if (p_msg->vendor_len < 4) {
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android_errorWriteLog(0x534e4554, "168712382");
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AVRC_TRACE_WARNING("%s: message length %d too short: must be at least 4",
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__func__, p_msg->vendor_len);
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return AVRC_STS_INTERNAL_ERR;
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}
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p = p_msg->p_vendor_data;
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p_result->pdu = *p++;
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AVRC_TRACE_DEBUG("%s pdu:0x%x", __func__, p_result->pdu);
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if (!AVRC_IsValidAvcType(p_result->pdu, p_msg->hdr.ctype)) {
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AVRC_TRACE_DEBUG("%s detects wrong AV/C type(0x%x)!", __func__,
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p_msg->hdr.ctype);
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status = AVRC_STS_BAD_CMD;
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}
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p++; /* skip the reserved byte */
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BE_STREAM_TO_UINT16(len, p);
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if ((len + 4) != (p_msg->vendor_len)) {
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AVRC_TRACE_ERROR("%s incorrect length :%d, %d", __func__, len,
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p_msg->vendor_len);
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status = AVRC_STS_INTERNAL_ERR;
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}
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if (status != AVRC_STS_NO_ERROR) return status;
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switch (p_result->pdu) {
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case AVRC_PDU_GET_CAPABILITIES: /* 0x10 */
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p_result->get_caps.capability_id = *p++;
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if (!AVRC_IS_VALID_CAP_ID(p_result->get_caps.capability_id))
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status = AVRC_STS_BAD_PARAM;
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else if (len != 1)
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return AVRC_STS_INTERNAL_ERR;
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break;
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case AVRC_PDU_LIST_PLAYER_APP_ATTR: /* 0x11 */
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/* no additional parameters */
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if (len != 0) return AVRC_STS_INTERNAL_ERR;
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break;
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case AVRC_PDU_LIST_PLAYER_APP_VALUES: /* 0x12 */
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if (len == 0) return AVRC_STS_INTERNAL_ERR;
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p_result->list_app_values.attr_id = *p++;
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if (!AVRC_IS_VALID_ATTRIBUTE(p_result->list_app_values.attr_id))
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status = AVRC_STS_BAD_PARAM;
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else if (len != 1)
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status = AVRC_STS_INTERNAL_ERR;
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break;
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case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE: /* 0x13 */
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case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT: /* 0x15 */
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if (len == 0) return AVRC_STS_INTERNAL_ERR;
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BE_STREAM_TO_UINT8(p_result->get_cur_app_val.num_attr, p);
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if (len != (p_result->get_cur_app_val.num_attr + 1)) {
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status = AVRC_STS_INTERNAL_ERR;
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break;
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}
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if (p_result->get_cur_app_val.num_attr > AVRC_MAX_APP_ATTR_SIZE) {
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android_errorWriteLog(0x534e4554, "63146237");
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p_result->get_cur_app_val.num_attr = AVRC_MAX_APP_ATTR_SIZE;
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}
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p_u8 = p_result->get_cur_app_val.attrs;
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for (xx = 0, yy = 0; xx < p_result->get_cur_app_val.num_attr; xx++) {
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/* only report the valid player app attributes */
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if (AVRC_IsValidPlayerAttr(*p)) p_u8[yy++] = *p;
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p++;
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}
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p_result->get_cur_app_val.num_attr = yy;
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if (yy == 0) {
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status = AVRC_STS_BAD_PARAM;
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}
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break;
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case AVRC_PDU_SET_PLAYER_APP_VALUE: /* 0x14 */
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if (len == 0) return AVRC_STS_INTERNAL_ERR;
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BE_STREAM_TO_UINT8(p_result->set_app_val.num_val, p);
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size_needed = sizeof(tAVRC_APP_SETTING);
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if (p_buf && (len == ((p_result->set_app_val.num_val << 1) + 1))) {
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p_result->set_app_val.p_vals = (tAVRC_APP_SETTING*)p_buf;
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p_app_set = p_result->set_app_val.p_vals;
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for (xx = 0;
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((xx < p_result->set_app_val.num_val) && (buf_len > size_needed));
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xx++) {
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p_app_set[xx].attr_id = *p++;
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p_app_set[xx].attr_val = *p++;
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if (!avrc_is_valid_player_attrib_value(p_app_set[xx].attr_id,
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p_app_set[xx].attr_val))
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status = AVRC_STS_BAD_PARAM;
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}
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if (xx != p_result->set_app_val.num_val) {
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AVRC_TRACE_ERROR(
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"%s AVRC_PDU_SET_PLAYER_APP_VALUE not enough room:%d orig "
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"num_val:%d",
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__func__, xx, p_result->set_app_val.num_val);
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p_result->set_app_val.num_val = xx;
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}
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} else {
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AVRC_TRACE_ERROR(
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"%s AVRC_PDU_SET_PLAYER_APP_VALUE NULL decode buffer or bad len",
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__func__);
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status = AVRC_STS_INTERNAL_ERR;
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}
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break;
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case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT: /* 0x16 */
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if (len < 3)
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return AVRC_STS_INTERNAL_ERR;
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else {
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BE_STREAM_TO_UINT8(p_result->get_app_val_txt.attr_id, p);
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if (!AVRC_IS_VALID_ATTRIBUTE(p_result->get_app_val_txt.attr_id))
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status = AVRC_STS_BAD_PARAM;
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else {
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BE_STREAM_TO_UINT8(p_result->get_app_val_txt.num_val, p);
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if ((len - 2 /* attr_id & num_val */) !=
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p_result->get_app_val_txt.num_val)
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status = AVRC_STS_INTERNAL_ERR;
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else {
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if (p_result->get_app_val_txt.num_val > AVRC_MAX_APP_ATTR_SIZE) {
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android_errorWriteLog(0x534e4554, "63146237");
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p_result->get_app_val_txt.num_val = AVRC_MAX_APP_ATTR_SIZE;
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}
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p_u8 = p_result->get_app_val_txt.vals;
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for (xx = 0; xx < p_result->get_app_val_txt.num_val; xx++) {
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p_u8[xx] = *p++;
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if (!avrc_is_valid_player_attrib_value(
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p_result->get_app_val_txt.attr_id, p_u8[xx])) {
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status = AVRC_STS_BAD_PARAM;
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break;
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}
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}
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}
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}
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}
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break;
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case AVRC_PDU_INFORM_DISPLAY_CHARSET: /* 0x17 */
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if (len < 3)
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return AVRC_STS_INTERNAL_ERR;
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else {
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BE_STREAM_TO_UINT8(p_result->inform_charset.num_id, p);
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if ((len - 1 /* num_id */) != p_result->inform_charset.num_id * 2)
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status = AVRC_STS_INTERNAL_ERR;
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else {
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p_u16 = p_result->inform_charset.charsets;
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if (p_result->inform_charset.num_id > AVRC_MAX_CHARSET_SIZE)
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p_result->inform_charset.num_id = AVRC_MAX_CHARSET_SIZE;
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for (xx = 0; xx < p_result->inform_charset.num_id; xx++) {
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BE_STREAM_TO_UINT16(p_u16[xx], p);
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}
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}
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}
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break;
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case AVRC_PDU_INFORM_BATTERY_STAT_OF_CT: /* 0x18 */
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if (len != 1)
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return AVRC_STS_INTERNAL_ERR;
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else {
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p_result->inform_battery_status.battery_status = *p++;
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if (!AVRC_IS_VALID_BATTERY_STATUS(
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p_result->inform_battery_status.battery_status))
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status = AVRC_STS_BAD_PARAM;
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}
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break;
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case AVRC_PDU_GET_ELEMENT_ATTR: /* 0x20 */
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if (len < 9) /* UID/8 and num_attr/1 */
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return AVRC_STS_INTERNAL_ERR;
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else {
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BE_STREAM_TO_UINT32(u32, p);
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BE_STREAM_TO_UINT32(u32_2, p);
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if (u32 == 0 && u32_2 == 0) {
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BE_STREAM_TO_UINT8(p_result->get_elem_attrs.num_attr, p);
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if ((len - 9 /* UID/8 and num_attr/1 */) !=
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(p_result->get_elem_attrs.num_attr * 4))
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status = AVRC_STS_INTERNAL_ERR;
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else {
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p_u32 = p_result->get_elem_attrs.attrs;
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if (p_result->get_elem_attrs.num_attr > AVRC_MAX_ELEM_ATTR_SIZE)
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p_result->get_elem_attrs.num_attr = AVRC_MAX_ELEM_ATTR_SIZE;
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for (xx = 0; xx < p_result->get_elem_attrs.num_attr; xx++) {
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BE_STREAM_TO_UINT32(p_u32[xx], p);
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}
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}
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} else
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status = AVRC_STS_NOT_FOUND;
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}
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break;
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case AVRC_PDU_GET_PLAY_STATUS: /* 0x30 */
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/* no additional parameters */
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if (len != 0) return AVRC_STS_INTERNAL_ERR;
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break;
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case AVRC_PDU_REGISTER_NOTIFICATION: /* 0x31 */
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if (len != 5)
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return AVRC_STS_INTERNAL_ERR;
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else {
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BE_STREAM_TO_UINT8(p_result->reg_notif.event_id, p);
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if (!AVRC_IS_VALID_EVENT_ID(p_result->reg_notif.event_id)) {
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android_errorWriteLog(0x534e4554, "168802990");
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AVRC_TRACE_ERROR("%s: Invalid event id: %d", __func__,
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p_result->reg_notif.event_id);
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return AVRC_STS_BAD_PARAM;
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}
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BE_STREAM_TO_UINT32(p_result->reg_notif.param, p);
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}
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break;
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case AVRC_PDU_SET_ABSOLUTE_VOLUME: /* 0x50 */
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if (len != 1)
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return AVRC_STS_INTERNAL_ERR;
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else
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p_result->volume.volume = *p++;
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break;
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case AVRC_PDU_REQUEST_CONTINUATION_RSP: /* 0x40 */
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if (len != 1) {
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return AVRC_STS_INTERNAL_ERR;
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}
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BE_STREAM_TO_UINT8(p_result->continu.target_pdu, p);
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break;
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case AVRC_PDU_ABORT_CONTINUATION_RSP: /* 0x41 */
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if (len != 1) {
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return AVRC_STS_INTERNAL_ERR;
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}
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BE_STREAM_TO_UINT8(p_result->abort.target_pdu, p);
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break;
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case AVRC_PDU_SET_ADDRESSED_PLAYER: /* 0x60 */
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if (len != 2) {
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AVRC_TRACE_ERROR("AVRC_PDU_SET_ADDRESSED_PLAYER length is incorrect:%d",
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len);
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return AVRC_STS_INTERNAL_ERR;
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}
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BE_STREAM_TO_UINT16(p_result->addr_player.player_id, p);
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break;
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case AVRC_PDU_PLAY_ITEM: /* 0x74 */
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case AVRC_PDU_ADD_TO_NOW_PLAYING: /* 0x90 */
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if (len != (AVRC_UID_SIZE + 3)) return AVRC_STS_INTERNAL_ERR;
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BE_STREAM_TO_UINT8(p_result->play_item.scope, p);
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if (p_result->play_item.scope > AVRC_SCOPE_NOW_PLAYING) {
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status = AVRC_STS_BAD_SCOPE;
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}
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BE_STREAM_TO_ARRAY(p, p_result->play_item.uid, AVRC_UID_SIZE);
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BE_STREAM_TO_UINT16(p_result->play_item.uid_counter, p);
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break;
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default:
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status = AVRC_STS_BAD_CMD;
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break;
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}
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return status;
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}
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/*******************************************************************************
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*
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* Function AVRC_Ctrl_ParsCommand
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*
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* Description This function is used to parse cmds received for CTRL
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* Currently it is for SetAbsVolume and Volume Change
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* Notification.
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*
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* Returns AVRC_STS_NO_ERROR, if the message in p_data is parsed
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* successfully.
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* Otherwise, the error code defined by AVRCP 1.4
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*
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******************************************************************************/
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tAVRC_STS AVRC_Ctrl_ParsCommand(tAVRC_MSG* p_msg, tAVRC_COMMAND* p_result) {
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tAVRC_STS status = AVRC_STS_INTERNAL_ERR;
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if (p_msg && p_result) {
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switch (p_msg->hdr.opcode) {
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case AVRC_OP_VENDOR: /* 0x00 Vendor-dependent commands */
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status = avrc_ctrl_pars_vendor_cmd(&p_msg->vendor, p_result);
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break;
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default:
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AVRC_TRACE_ERROR("%s unknown opcode:0x%x", __func__, p_msg->hdr.opcode);
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break;
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}
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p_result->cmd.opcode = p_msg->hdr.opcode;
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p_result->cmd.status = status;
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}
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AVRC_TRACE_DEBUG("%s return status:0x%x", __func__, status);
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return status;
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}
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#define RETURN_STATUS_IF_FALSE(_status_, _b_, _msg_, ...) \
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if (!(_b_)) { \
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AVRC_TRACE_DEBUG(_msg_, ##__VA_ARGS__); \
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return _status_; \
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}
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|
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/*******************************************************************************
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*
|
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* Function avrc_pars_browsing_cmd
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*
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* Description This function parses the commands that go through the
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* browsing channel
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*
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* Returns AVRC_STS_NO_ERROR, if the message in p_data is parsed
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* successfully.
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* Otherwise, the error code defined by AVRCP+1
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*
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******************************************************************************/
|
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static tAVRC_STS avrc_pars_browsing_cmd(tAVRC_MSG_BROWSE* p_msg,
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tAVRC_COMMAND* p_result, uint8_t* p_buf,
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uint16_t buf_len) {
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tAVRC_STS status = AVRC_STS_NO_ERROR;
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|
uint8_t* p = p_msg->p_browse_data;
|
|
int count;
|
|
|
|
uint32_t min_len = 3;
|
|
RETURN_STATUS_IF_FALSE(AVRC_STS_BAD_CMD, (p_msg->browse_len >= min_len),
|
|
"msg too short");
|
|
|
|
p_result->pdu = *p++;
|
|
AVRC_TRACE_DEBUG("avrc_pars_browsing_cmd() pdu:0x%x", p_result->pdu);
|
|
/* skip over len */
|
|
p += 2;
|
|
|
|
switch (p_result->pdu) {
|
|
case AVRC_PDU_SET_BROWSED_PLAYER: /* 0x70 */
|
|
min_len += 2;
|
|
RETURN_STATUS_IF_FALSE(AVRC_STS_BAD_CMD, (p_msg->browse_len >= min_len),
|
|
"msg too short");
|
|
|
|
// For current implementation all players are browsable.
|
|
BE_STREAM_TO_UINT16(p_result->br_player.player_id, p);
|
|
break;
|
|
|
|
case AVRC_PDU_GET_FOLDER_ITEMS: /* 0x71 */
|
|
|
|
min_len += 10;
|
|
RETURN_STATUS_IF_FALSE(AVRC_STS_BAD_CMD, (p_msg->browse_len >= min_len),
|
|
"msg too short");
|
|
|
|
STREAM_TO_UINT8(p_result->get_items.scope, p);
|
|
// To be modified later here (Scope) when all browsing commands are
|
|
// supported
|
|
if (p_result->get_items.scope > AVRC_SCOPE_NOW_PLAYING) {
|
|
status = AVRC_STS_BAD_SCOPE;
|
|
}
|
|
BE_STREAM_TO_UINT32(p_result->get_items.start_item, p);
|
|
BE_STREAM_TO_UINT32(p_result->get_items.end_item, p);
|
|
if (p_result->get_items.start_item > p_result->get_items.end_item) {
|
|
status = AVRC_STS_BAD_RANGE;
|
|
}
|
|
STREAM_TO_UINT8(p_result->get_items.attr_count, p);
|
|
p_result->get_items.p_attr_list = NULL;
|
|
if (p_result->get_items.attr_count && p_buf &&
|
|
(p_result->get_items.attr_count != AVRC_FOLDER_ITEM_COUNT_NONE)) {
|
|
p_result->get_items.p_attr_list = (uint32_t*)p_buf;
|
|
count = p_result->get_items.attr_count;
|
|
if (buf_len < (count << 2))
|
|
p_result->get_items.attr_count = count = (buf_len >> 2);
|
|
for (int idx = 0; idx < count; idx++) {
|
|
min_len += 4;
|
|
RETURN_STATUS_IF_FALSE(AVRC_STS_BAD_CMD,
|
|
(p_msg->browse_len >= min_len),
|
|
"msg too short");
|
|
|
|
BE_STREAM_TO_UINT32(p_result->get_items.p_attr_list[idx], p);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case AVRC_PDU_CHANGE_PATH: /* 0x72 */
|
|
min_len += 11;
|
|
RETURN_STATUS_IF_FALSE(AVRC_STS_BAD_CMD, (p_msg->browse_len >= min_len),
|
|
"msg too short");
|
|
|
|
BE_STREAM_TO_UINT16(p_result->chg_path.uid_counter, p);
|
|
BE_STREAM_TO_UINT8(p_result->chg_path.direction, p);
|
|
if (p_result->chg_path.direction != AVRC_DIR_UP &&
|
|
p_result->chg_path.direction != AVRC_DIR_DOWN) {
|
|
status = AVRC_STS_BAD_DIR;
|
|
}
|
|
BE_STREAM_TO_ARRAY(p, p_result->chg_path.folder_uid, AVRC_UID_SIZE);
|
|
break;
|
|
|
|
case AVRC_PDU_GET_ITEM_ATTRIBUTES: /* 0x73 */
|
|
min_len += 12;
|
|
RETURN_STATUS_IF_FALSE(AVRC_STS_BAD_CMD, (p_msg->browse_len >= min_len),
|
|
"msg too short");
|
|
|
|
BE_STREAM_TO_UINT8(p_result->get_attrs.scope, p);
|
|
|
|
if (p_result->get_attrs.scope > AVRC_SCOPE_NOW_PLAYING) {
|
|
status = AVRC_STS_BAD_SCOPE;
|
|
break;
|
|
}
|
|
BE_STREAM_TO_ARRAY(p, p_result->get_attrs.uid, AVRC_UID_SIZE);
|
|
BE_STREAM_TO_UINT16(p_result->get_attrs.uid_counter, p);
|
|
BE_STREAM_TO_UINT8(p_result->get_attrs.attr_count, p);
|
|
p_result->get_attrs.p_attr_list = NULL;
|
|
if (p_result->get_attrs.attr_count && p_buf) {
|
|
p_result->get_attrs.p_attr_list = (uint32_t*)p_buf;
|
|
count = p_result->get_attrs.attr_count;
|
|
if (buf_len < (count << 2))
|
|
p_result->get_attrs.attr_count = count = (buf_len >> 2);
|
|
for (int idx = 0, count = 0; idx < p_result->get_attrs.attr_count;
|
|
idx++) {
|
|
min_len += 4;
|
|
RETURN_STATUS_IF_FALSE(AVRC_STS_BAD_CMD,
|
|
(p_msg->browse_len >= min_len),
|
|
"msg too short");
|
|
|
|
BE_STREAM_TO_UINT32(p_result->get_attrs.p_attr_list[count], p);
|
|
if (AVRC_IS_VALID_MEDIA_ATTRIBUTE(
|
|
p_result->get_attrs.p_attr_list[count])) {
|
|
count++;
|
|
}
|
|
}
|
|
|
|
if (p_result->get_attrs.attr_count != count && count == 0)
|
|
status = AVRC_STS_BAD_PARAM;
|
|
else
|
|
p_result->get_attrs.attr_count = count;
|
|
}
|
|
break;
|
|
|
|
case AVRC_PDU_GET_TOTAL_NUM_OF_ITEMS: /* 0x75 */
|
|
++min_len;
|
|
RETURN_STATUS_IF_FALSE(AVRC_STS_BAD_CMD, (p_msg->browse_len >= min_len),
|
|
"msg too short");
|
|
|
|
BE_STREAM_TO_UINT8(p_result->get_num_of_items.scope, p);
|
|
if (p_result->get_num_of_items.scope > AVRC_SCOPE_NOW_PLAYING) {
|
|
status = AVRC_STS_BAD_SCOPE;
|
|
}
|
|
break;
|
|
|
|
case AVRC_PDU_SEARCH: /* 0x80 */
|
|
min_len += 4;
|
|
RETURN_STATUS_IF_FALSE(AVRC_STS_BAD_CMD, (p_msg->browse_len >= min_len),
|
|
"msg too short");
|
|
|
|
BE_STREAM_TO_UINT16(p_result->search.string.charset_id, p);
|
|
BE_STREAM_TO_UINT16(p_result->search.string.str_len, p);
|
|
p_result->search.string.p_str = p_buf;
|
|
if (p_buf) {
|
|
if (p_result->search.string.str_len > buf_len) {
|
|
p_result->search.string.str_len = buf_len;
|
|
} else {
|
|
android_errorWriteLog(0x534e4554, "63146237");
|
|
}
|
|
min_len += p_result->search.string.str_len;
|
|
RETURN_STATUS_IF_FALSE(AVRC_STS_BAD_CMD, (p_msg->browse_len >= min_len),
|
|
"msg too short");
|
|
|
|
BE_STREAM_TO_ARRAY(p, p_buf, p_result->search.string.str_len);
|
|
} else {
|
|
status = AVRC_STS_INTERNAL_ERR;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
status = AVRC_STS_BAD_CMD;
|
|
break;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function AVRC_ParsCommand
|
|
*
|
|
* Description This function is a superset of AVRC_ParsMetadata to parse
|
|
* the command.
|
|
*
|
|
* Returns AVRC_STS_NO_ERROR, if the message in p_data is parsed
|
|
* successfully.
|
|
* Otherwise, the error code defined by AVRCP 1.4
|
|
*
|
|
******************************************************************************/
|
|
tAVRC_STS AVRC_ParsCommand(tAVRC_MSG* p_msg, tAVRC_COMMAND* p_result,
|
|
uint8_t* p_buf, uint16_t buf_len) {
|
|
tAVRC_STS status = AVRC_STS_INTERNAL_ERR;
|
|
uint16_t id;
|
|
|
|
if (p_msg && p_result) {
|
|
switch (p_msg->hdr.opcode) {
|
|
case AVRC_OP_VENDOR: /* 0x00 Vendor-dependent commands */
|
|
status = avrc_pars_vendor_cmd(&p_msg->vendor, p_result, p_buf, buf_len);
|
|
break;
|
|
|
|
case AVRC_OP_PASS_THRU: /* 0x7C panel subunit opcode */
|
|
status = avrc_pars_pass_thru(&p_msg->pass, &id);
|
|
if (status == AVRC_STS_NO_ERROR) {
|
|
p_result->pdu = (uint8_t)id;
|
|
}
|
|
break;
|
|
|
|
case AVRC_OP_BROWSE:
|
|
status =
|
|
avrc_pars_browsing_cmd(&p_msg->browse, p_result, p_buf, buf_len);
|
|
break;
|
|
|
|
default:
|
|
AVRC_TRACE_ERROR("%s unknown opcode:0x%x", __func__, p_msg->hdr.opcode);
|
|
break;
|
|
}
|
|
p_result->cmd.opcode = p_msg->hdr.opcode;
|
|
p_result->cmd.status = status;
|
|
}
|
|
AVRC_TRACE_DEBUG("%s return status:0x%x", __func__, status);
|
|
return status;
|
|
}
|