/*******************************************************************************
**
** Function avrc_prs_get_elem_attrs_rsp
**
** Description This function parses the Get Element Attributes
** response.
**
** Returns AVRC_STS_NO_ERROR, if the response is parsed successfully
** Otherwise, the error code.
**
*******************************************************************************/
static tAVRC_STS avrc_prs_get_elem_attrs_rsp (tAVRC_GET_ELEM_ATTRS_RSP *p_rsp, UINT8 *p_data)
{
UINT8 *p_start, *p_len, *p_count;
UINT16 len;
UINT8 xx;
UINT32 attr_id;
if (p_rsp->num_attr == 0)
return AVRC_STS_NO_ERROR;
AVRC_TRACE_API("avrc_prs_get_elem_attrs_rsp num_attr: %d", p_rsp->num_attr);
p_rsp->p_attrs = (tAVRC_ATTR_ENTRY*)malloc(sizeof(tAVRC_ATTR_ENTRY) * p_rsp->num_attr);
for (xx=0; xx<p_rsp->num_attr; xx++)
{
BE_STREAM_TO_UINT32(attr_id, p_data);
if (!AVRC_IS_VALID_MEDIA_ATTRIBUTE(attr_id))
{
AVRC_TRACE_ERROR("avrc_prs_get_elem_attrs_rsp invalid attr id[%d]: %d", xx, attr_id);
continue;
}
p_rsp->p_attrs[xx].attr_id = attr_id;
BE_STREAM_TO_UINT16(p_rsp->p_attrs[xx].name.charset_id, p_data);
BE_STREAM_TO_UINT16(p_rsp->p_attrs[xx].name.str_len, p_data);
p_rsp->p_attrs[xx].name.p_str = (UINT8*)malloc(sizeof(UINT8) * p_rsp->p_attrs[xx].name.str_len);
BE_STREAM_TO_ARRAY(p_data, p_rsp->p_attrs[xx].name.p_str, p_rsp->p_attrs[xx].name.str_len);
AVRC_TRACE_DEBUG("avrc_prs_get_elem_attrs_rsp str_len: %d, str: %s", p_rsp->p_attrs[xx].name.str_len, p_rsp->p_attrs[xx].name.p_str);
}
return AVRC_STS_NO_ERROR;
}
/*******************************************************************************
**
** Function avrc_pars_vendor_cmd
**
** Description This function parses the vendor specific 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
**
*******************************************************************************/
static tAVRC_STS avrc_pars_vendor_cmd(tAVRC_MSG_VENDOR *p_msg, tAVRC_COMMAND *p_result,
UINT8 *p_buf, UINT16 buf_len)
{
tAVRC_STS status = AVRC_STS_NO_ERROR;
UINT8 *p;
UINT16 len;
UINT8 xx, yy;
UINT8 *p_u8;
UINT16 *p_u16;
UINT32 u32, u32_2, *p_u32;
tAVRC_APP_SETTING *p_app_set;
UINT16 size_needed;
/* Check the vendor data */
if (p_msg->vendor_len == 0) {
return AVRC_STS_NO_ERROR;
}
if (p_msg->p_vendor_data == NULL) {
return AVRC_STS_INTERNAL_ERR;
}
p = p_msg->p_vendor_data;
p_result->pdu = *p++;
AVRC_TRACE_DEBUG("avrc_pars_vendor_cmd() pdu:0x%x", p_result->pdu);
if (!AVRC_IsValidAvcType (p_result->pdu, p_msg->hdr.ctype)) {
AVRC_TRACE_DEBUG("avrc_pars_vendor_cmd() detects wrong AV/C type!");
status = AVRC_STS_BAD_CMD;
}
p++; /* skip the reserved byte */
BE_STREAM_TO_UINT16 (len, p);
if ((len + 4) != (p_msg->vendor_len)) {
status = AVRC_STS_INTERNAL_ERR;
}
if (status != AVRC_STS_NO_ERROR) {
return status;
}
switch (p_result->pdu) {
case AVRC_PDU_GET_CAPABILITIES: /* 0x10 */
p_result->get_caps.capability_id = *p++;
if (!AVRC_IS_VALID_CAP_ID(p_result->get_caps.capability_id)) {
status = AVRC_STS_BAD_PARAM;
} else if (len != 1) {
status = AVRC_STS_INTERNAL_ERR;
}
break;
case AVRC_PDU_LIST_PLAYER_APP_ATTR: /* 0x11 */
/* no additional parameters */
if (len != 0) {
status = AVRC_STS_INTERNAL_ERR;
}
break;
case AVRC_PDU_LIST_PLAYER_APP_VALUES: /* 0x12 */
p_result->list_app_values.attr_id = *p++;
if (!AVRC_IS_VALID_ATTRIBUTE(p_result->list_app_values.attr_id)) {
status = AVRC_STS_BAD_PARAM;
} else if (len != 1) {
status = AVRC_STS_INTERNAL_ERR;
}
break;
case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE: /* 0x13 */
case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT: /* 0x15 */
BE_STREAM_TO_UINT8 (p_result->get_cur_app_val.num_attr, p);
if (len != (p_result->get_cur_app_val.num_attr + 1)) {
status = AVRC_STS_INTERNAL_ERR;
break;
}
p_u8 = p_result->get_cur_app_val.attrs;
for (xx = 0, yy = 0; xx < p_result->get_cur_app_val.num_attr; xx++) {
/* only report the valid player app attributes */
if (AVRC_IsValidPlayerAttr(*p)) {
p_u8[yy++] = *p;
}
p++;
}
p_result->get_cur_app_val.num_attr = yy;
if (yy == 0) {
status = AVRC_STS_BAD_PARAM;
}
break;
case AVRC_PDU_SET_PLAYER_APP_VALUE: /* 0x14 */
BE_STREAM_TO_UINT8 (p_result->set_app_val.num_val, p);
size_needed = sizeof(tAVRC_APP_SETTING);
if (p_buf && (len == ((p_result->set_app_val.num_val << 1) + 1))) {
p_result->set_app_val.p_vals = (tAVRC_APP_SETTING *)p_buf;
p_app_set = p_result->set_app_val.p_vals;
for (xx = 0; ((xx < p_result->set_app_val.num_val) && (buf_len > size_needed)); xx++) {
p_app_set[xx].attr_id = *p++;
p_app_set[xx].attr_val = *p++;
if (!avrc_is_valid_player_attrib_value(p_app_set[xx].attr_id, p_app_set[xx].attr_val)) {
status = AVRC_STS_BAD_PARAM;
}
}
if (xx != p_result->set_app_val.num_val) {
AVRC_TRACE_ERROR("AVRC_PDU_SET_PLAYER_APP_VALUE not enough room:%d orig num_val:%d",
xx, p_result->set_app_val.num_val);
p_result->set_app_val.num_val = xx;
}
} else {
AVRC_TRACE_ERROR("AVRC_PDU_SET_PLAYER_APP_VALUE NULL decode buffer or bad len");
status = AVRC_STS_INTERNAL_ERR;
}
break;
case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT:/* 0x16 */
if (len < 3) {
status = AVRC_STS_INTERNAL_ERR;
} else {
BE_STREAM_TO_UINT8 (p_result->get_app_val_txt.attr_id, p);
if (!AVRC_IS_VALID_ATTRIBUTE(p_result->get_app_val_txt.attr_id)) {
status = AVRC_STS_BAD_PARAM;
} else {
BE_STREAM_TO_UINT8 (p_result->get_app_val_txt.num_val, p);
if ( (len - 2/* attr_id & num_val */) != p_result->get_app_val_txt.num_val) {
status = AVRC_STS_INTERNAL_ERR;
} else {
p_u8 = p_result->get_app_val_txt.vals;
for (xx = 0; xx < p_result->get_app_val_txt.num_val; xx++) {
p_u8[xx] = *p++;
if (!avrc_is_valid_player_attrib_value(p_result->get_app_val_txt.attr_id,
p_u8[xx])) {
status = AVRC_STS_BAD_PARAM;
break;
}
}
}
}
}
break;
case AVRC_PDU_INFORM_DISPLAY_CHARSET: /* 0x17 */
if (len < 3) {
status = AVRC_STS_INTERNAL_ERR;
} else {
BE_STREAM_TO_UINT8 (p_result->inform_charset.num_id, p);
if ( (len - 1/* num_id */) != p_result->inform_charset.num_id * 2) {
status = AVRC_STS_INTERNAL_ERR;
} else {
p_u16 = p_result->inform_charset.charsets;
if (p_result->inform_charset.num_id > AVRC_MAX_CHARSET_SIZE) {
p_result->inform_charset.num_id = AVRC_MAX_CHARSET_SIZE;
}
for (xx = 0; xx < p_result->inform_charset.num_id; xx++) {
BE_STREAM_TO_UINT16 (p_u16[xx], p);
}
}
}
break;
case AVRC_PDU_INFORM_BATTERY_STAT_OF_CT:/* 0x18 */
if (len != 1) {
status = AVRC_STS_INTERNAL_ERR;
} else {
p_result->inform_battery_status.battery_status = *p++;
if (!AVRC_IS_VALID_BATTERY_STATUS(p_result->inform_battery_status.battery_status)) {
status = AVRC_STS_BAD_PARAM;
}
}
break;
case AVRC_PDU_GET_ELEMENT_ATTR: /* 0x20 */
if (len < 9) { /* UID/8 and num_attr/1 */
status = AVRC_STS_INTERNAL_ERR;
} else {
BE_STREAM_TO_UINT32 (u32, p);
BE_STREAM_TO_UINT32 (u32_2, p);
if (u32 == 0 && u32_2 == 0) {
BE_STREAM_TO_UINT8 (p_result->get_elem_attrs.num_attr, p);
if ( (len - 9/* UID/8 and num_attr/1 */) != (p_result->get_elem_attrs.num_attr * 4)) {
status = AVRC_STS_INTERNAL_ERR;
} else {
p_u32 = p_result->get_elem_attrs.attrs;
if (p_result->get_elem_attrs.num_attr > AVRC_MAX_ELEM_ATTR_SIZE) {
p_result->get_elem_attrs.num_attr = AVRC_MAX_ELEM_ATTR_SIZE;
}
for (xx = 0; xx < p_result->get_elem_attrs.num_attr; xx++) {
BE_STREAM_TO_UINT32 (p_u32[xx], p);
}
}
} else {
status = AVRC_STS_NOT_FOUND;
}
}
break;
case AVRC_PDU_GET_PLAY_STATUS: /* 0x30 */
/* no additional parameters */
if (len != 0) {
status = AVRC_STS_INTERNAL_ERR;
}
break;
case AVRC_PDU_REGISTER_NOTIFICATION: /* 0x31 */
if (len != 5) {
status = AVRC_STS_INTERNAL_ERR;
} else {
BE_STREAM_TO_UINT8 (p_result->reg_notif.event_id, p);
BE_STREAM_TO_UINT32 (p_result->reg_notif.param, p);
}
break;
case AVRC_PDU_SET_ABSOLUTE_VOLUME: {
if (len != 1) {
status = AVRC_STS_INTERNAL_ERR;
}
break;
}
/* case AVRC_PDU_REQUEST_CONTINUATION_RSP: 0x40 */
/* case AVRC_PDU_ABORT_CONTINUATION_RSP: 0x41 */
default:
status = AVRC_STS_BAD_CMD;
break;
}
return status;
}
