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/****************************************************************************
* (C) Copyright 2008 Samsung Electronics Co., Ltd., All rights reserved
*
* [File Name] : NonPeriodicTransfer.c
* [Description] : This source file implements the functions to be defined at NonPeriodicTransfer Module.
* [Author] : Yang Soon Yeal { syatom.yang@samsung.com }
* [Department] : System LSI Division/System SW Lab
* [Created Date]: 2008/06/09
* [Revision History]
* (1) 2008/06/09 by Yang Soon Yeal { syatom.yang@samsung.com }
* - Created this file and implements some functions of PeriodicTransfer.
* -# Jul 15,2008 v1.2 by SeungSoo Yang (ss1.yang@samsung.com) \n
* : Optimizing for performance \n
*
****************************************************************************/
/****************************************************************************
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
****************************************************************************/
#include "s3c-otg-transfer-transfer.h"
/******************************************************************************/
/*!
* @name int init_perio_stransfer( bool f_is_isoch_transfer,
* td_t *parent_td)
*
* @brief this function initiates the parent_td->cur_stransfer for Periodic Transfer and
* inserts this init_td_p to init_td_p->parent_ed_p.
*
* @param [IN] f_is_isoch_transfer = indicates whether this transfer is Isochronous or not.
* [IN] parent_td = indicates the address of td_t to be initiated.
*
* @return USB_ERR_SUCCESS -if success to update the STranfer of pUpdateTD.
* USB_ERR_FAIL -if fail to update the STranfer of pUpdateTD.
*/
/******************************************************************************/
int init_perio_stransfer( bool f_is_isoch_transfer,
td_t *parent_td)
{
parent_td->cur_stransfer.ed_desc_p = &parent_td->parent_ed_p->ed_desc;
parent_td->cur_stransfer.ed_status_p = &parent_td->parent_ed_p->ed_status;
parent_td->cur_stransfer.alloc_chnum = CH_NONE;
parent_td->cur_stransfer.parent_td = (u32)parent_td;
parent_td->cur_stransfer.stransfer_id = (u32)&parent_td->cur_stransfer;
otg_mem_set(&parent_td->cur_stransfer.hc_reg, 0, sizeof(hc_reg_t));
parent_td->cur_stransfer.hc_reg.hc_int_msk.b.chhltd = 1;
if(f_is_isoch_transfer)
{
// initiates the STransfer usinb the IsochPacketDesc[0].
parent_td->cur_stransfer.buf_size =parent_td->isoch_packet_desc_p[0].buf_size;
parent_td->cur_stransfer.start_phy_buf_addr =parent_td->phy_buf_addr + parent_td->isoch_packet_desc_p[0].isoch_packiet_start_addr;
parent_td->cur_stransfer.start_vir_buf_addr =parent_td->vir_buf_addr + parent_td->isoch_packet_desc_p[0].isoch_packiet_start_addr;
}
else
{
parent_td->cur_stransfer.buf_size =(parent_td->buf_size>MAX_CH_TRANSFER_SIZE)
?MAX_CH_TRANSFER_SIZE
:parent_td->buf_size;
parent_td->cur_stransfer.start_phy_buf_addr =parent_td->phy_buf_addr;
parent_td->cur_stransfer.start_vir_buf_addr =parent_td->vir_buf_addr;
}
parent_td->cur_stransfer.packet_cnt = calc_packet_cnt(parent_td->cur_stransfer.buf_size, parent_td->parent_ed_p->ed_desc.max_packet_size);
return USB_ERR_SUCCESS;
}
/******************************************************************************/
/*!
* @name void update_perio_stransfer(td_t *parent_td)
*
* @brief this function updates the parent_td->cur_stransfer to be used by S3COCI.
* the STransfer of parent_td is for Periodic Transfer.
*
* @param [IN/OUT]parent_td = indicates the pointer of td_t to store the STranser to be updated.
*
* @return USB_ERR_SUCCESS -if success to update the parent_td->cur_stransfer.
* USB_ERR_FAIL -if fail to update the parent_td->cur_stransfer.
*/
/******************************************************************************/
void update_perio_stransfer(td_t *parent_td)
{
switch(parent_td->parent_ed_p->ed_desc.endpoint_type) {
case INT_TRANSFER:
parent_td->cur_stransfer.start_phy_buf_addr = parent_td->phy_buf_addr+parent_td->transferred_szie;
parent_td->cur_stransfer.start_vir_buf_addr = parent_td->vir_buf_addr+parent_td->transferred_szie;
parent_td->cur_stransfer.buf_size = (parent_td->buf_size>MAX_CH_TRANSFER_SIZE)
?MAX_CH_TRANSFER_SIZE :parent_td->buf_size;
break;
case ISOCH_TRANSFER:
parent_td->cur_stransfer.start_phy_buf_addr = parent_td->phy_buf_addr
+parent_td->isoch_packet_desc_p[parent_td->isoch_packet_index].isoch_packiet_start_addr
+parent_td->isoch_packet_position;
parent_td->cur_stransfer.start_vir_buf_addr = parent_td->vir_buf_addr
+parent_td->isoch_packet_desc_p[parent_td->isoch_packet_index].isoch_packiet_start_addr
+parent_td->isoch_packet_position;
parent_td->cur_stransfer.buf_size = (parent_td->isoch_packet_desc_p[parent_td->isoch_packet_index].buf_size - parent_td->isoch_packet_position)>MAX_CH_TRANSFER_SIZE
?MAX_CH_TRANSFER_SIZE
:parent_td->isoch_packet_desc_p[parent_td->isoch_packet_index].buf_size - parent_td->isoch_packet_position;
break;
default:
break;
}
}
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