diff options
Diffstat (limited to 'stack/avrc/avrc_utils.c')
| -rw-r--r-- | stack/avrc/avrc_utils.c | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/stack/avrc/avrc_utils.c b/stack/avrc/avrc_utils.c new file mode 100644 index 0000000..b9eef9b --- /dev/null +++ b/stack/avrc/avrc_utils.c @@ -0,0 +1,254 @@ +/***************************************************************************** +** +** Name: avrc_utils.c +** +** Description: Utility functions to validate AVRC command/response paramaters +** +** Copyright (c) 2003-2008, Broadcom Corp., All Rights Reserved. +** Broadcom Bluetooth Core. Proprietary and confidential. +** +*****************************************************************************/ +#include <string.h> + +#include "gki.h" +#include "avrc_api.h" +#include "avrc_int.h" + + +#if (AVRC_METADATA_INCLUDED == TRUE) + +/************************************************************************** +** +** Function AVRC_IsValidAvcType +** +** Description Check if correct AVC type is specified +** +** Returns returns TRUE if it is valid +** +** +*******************************************************************************/ +BOOLEAN AVRC_IsValidAvcType(UINT8 pdu_id, UINT8 avc_type) +{ + BOOLEAN result=FALSE; + + if (avc_type < AVRC_RSP_NOT_IMPL) /* command msg */ + { + switch (pdu_id) + { + case AVRC_PDU_GET_CAPABILITIES: /* 0x10 */ + case AVRC_PDU_LIST_PLAYER_APP_ATTR: /* 0x11 */ + case AVRC_PDU_LIST_PLAYER_APP_VALUES: /* 0x12 */ + case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE: /* 0x13 */ + case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT: /* 0x15 */ + case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT: /* 0x16 */ + case AVRC_PDU_GET_ELEMENT_ATTR: /* 0x20 */ + case AVRC_PDU_GET_PLAY_STATUS: /* 0x30 */ + if (avc_type == AVRC_CMD_STATUS) + result=TRUE; + break; + + case AVRC_PDU_SET_PLAYER_APP_VALUE: /* 0x14 */ + case AVRC_PDU_INFORM_DISPLAY_CHARSET: /* 0x17 */ + case AVRC_PDU_INFORM_BATTERY_STAT_OF_CT: /* 0x18 */ + case AVRC_PDU_REQUEST_CONTINUATION_RSP: /* 0x40 */ + case AVRC_PDU_ABORT_CONTINUATION_RSP: /* 0x41 */ + if (avc_type == AVRC_CMD_CTRL) + result=TRUE; + break; + + case AVRC_PDU_REGISTER_NOTIFICATION: /* 0x31 */ + if (avc_type == AVRC_CMD_NOTIF) + result=TRUE; + break; + +#if (AVRC_ADV_CTRL_INCLUDED == TRUE) + case AVRC_PDU_SET_ABSOLUTE_VOLUME: /* 0x50 */ + case AVRC_PDU_SET_ADDRESSED_PLAYER: /* 0x60 */ + case AVRC_PDU_PLAY_ITEM: /* 0x74 */ + case AVRC_PDU_ADD_TO_NOW_PLAYING: /* 0x90 */ + if (avc_type == AVRC_CMD_CTRL) + result=TRUE; + break; +#endif + } + } + else /* response msg */ + { + if (avc_type >= AVRC_RSP_NOT_IMPL && + avc_type <= AVRC_RSP_INTERIM ) + result=TRUE; + } + + return result; +} + +/******************************************************************************* +** +** Function avrc_is_valid_player_attrib_value +** +** Description Check if the given attrib value is valid for its attribute +** +** +** Returns returns TRUE if it is valid +** +*******************************************************************************/ +BOOLEAN avrc_is_valid_player_attrib_value(UINT8 attrib, UINT8 value) +{ + BOOLEAN result=FALSE; + + switch(attrib) + { + case AVRC_PLAYER_SETTING_EQUALIZER: + if ((value > 0) && + (value <= AVRC_PLAYER_VAL_ON)) + result=TRUE; + break; + + case AVRC_PLAYER_SETTING_REPEAT: + if ((value > 0) && + (value <= AVRC_PLAYER_VAL_GROUP_REPEAT)) + result=TRUE; + break; + + case AVRC_PLAYER_SETTING_SHUFFLE: + case AVRC_PLAYER_SETTING_SCAN: + if ((value > 0) && + (value <= AVRC_PLAYER_VAL_GROUP_SHUFFLE)) + result=TRUE; + break; + } + + if (attrib >= AVRC_PLAYER_SETTING_LOW_MENU_EXT && + attrib <= AVRC_PLAYER_SETTING_HIGH_MENU_EXT) + result = TRUE; + + if (!result) + AVRC_TRACE_ERROR2("avrc_is_valid_player_attrib_value() found not matching attrib(x%x)-value(x%x) pair!", attrib, value); + + return result; +} + +/******************************************************************************* +** +** Function AVRC_IsValidPlayerAttr +** +** Description Check if the given attrib value is a valid one +** +** +** Returns returns TRUE if it is valid +** +*******************************************************************************/ +BOOLEAN AVRC_IsValidPlayerAttr(UINT8 attr) +{ + BOOLEAN result=FALSE; + + if ( (attr >= AVRC_PLAYER_SETTING_EQUALIZER && attr <= AVRC_PLAYER_SETTING_SCAN) || + (attr >= AVRC_PLAYER_SETTING_LOW_MENU_EXT && attr <= AVRC_PLAYER_SETTING_HIGH_MENU_EXT) ) + { + result = TRUE; + } + + return result; +} + + + +/******************************************************************************* +** +** Function avrc_pars_pass_thru +** +** Description This function parses the pass thru commands defined by +** Bluetooth SIG +** +** 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_pars_pass_thru(tAVRC_MSG_PASS *p_msg, UINT16 *p_vendor_unique_id) +{ + UINT8 *p_data; + UINT32 co_id; + UINT16 id; + tAVRC_STS status = AVRC_STS_BAD_CMD; + + if (p_msg->op_id == AVRC_ID_VENDOR && p_msg->pass_len == AVRC_PASS_THRU_GROUP_LEN) + { + p_data = p_msg->p_pass_data; + AVRC_BE_STREAM_TO_CO_ID (co_id, p_data); + if (co_id == AVRC_CO_METADATA) + { + BE_STREAM_TO_UINT16 (id, p_data); + if (AVRC_IS_VALID_GROUP(id)) + { + *p_vendor_unique_id = id; + status = AVRC_STS_NO_ERROR; + } + } + } + return status; +} + +/******************************************************************************* +** +** Function avrc_opcode_from_pdu +** +** Description This function returns the opcode of the given pdu +** +** Returns AVRC_OP_VENDOR, AVRC_OP_PASS_THRU or AVRC_OP_BROWSE +** +*******************************************************************************/ +UINT8 avrc_opcode_from_pdu(UINT8 pdu) +{ + UINT8 opcode = 0; + + switch (pdu) + { +#if (AVCT_BROWSE_INCLUDED == TRUE) + case AVRC_PDU_SET_BROWSED_PLAYER: + case AVRC_PDU_GET_FOLDER_ITEMS: + case AVRC_PDU_CHANGE_PATH: + case AVRC_PDU_GET_ITEM_ATTRIBUTES: + case AVRC_PDU_SEARCH: + case AVRC_PDU_GENERAL_REJECT: + opcode = AVRC_OP_BROWSE; + break; +#endif /* AVCT_BROWSE_INCLUDED */ + + 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 avrc_is_valid_opcode +** +** Description This function returns the opcode of the given pdu +** +** Returns AVRC_OP_VENDOR, AVRC_OP_PASS_THRU or AVRC_OP_BROWSE +** +*******************************************************************************/ +BOOLEAN avrc_is_valid_opcode(UINT8 opcode) +{ + BOOLEAN is_valid = FALSE; + switch (opcode) + { + case AVRC_OP_BROWSE: + case AVRC_OP_PASS_THRU: + case AVRC_OP_VENDOR: + is_valid = TRUE; + break; + } + return is_valid; +} + +#endif /* (AVRC_METADATA_INCLUDED == TRUE) */ + |