drivers/staging/rts_pstor/rtsx_transport.h

   1 /* Driver for Realtek PCI-Express card reader
   2  * Header file
   3  *
   4  * Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2, or (at your option) any
   9  * later version.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, see <http://www.gnu.org/licenses/>.
  18  *
  19  * Author:
  20  *   wwang (wei_wang@realsil.com.cn)
  21  *   No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China
  22  */
  23
  24 #ifndef __REALTEK_RTSX_TRANSPORT_H
  25 #define __REALTEK_RTSX_TRANSPORT_H
  26
  27 #include "rtsx.h"
  28 #include "rtsx_chip.h"
  29
  30 #define WAIT_TIME       2000
  31
  32 unsigned int rtsx_stor_access_xfer_buf(unsigned char *buffer,
  33         unsigned int buflen, struct scsi_cmnd *srb, unsigned int *index,
  34         unsigned int *offset, enum xfer_buf_dir dir);
  35 void rtsx_stor_set_xfer_buf(unsigned char *buffer,
  36         unsigned int buflen, struct scsi_cmnd *srb);
  37 void rtsx_stor_get_xfer_buf(unsigned char *buffer,
  38         unsigned int buflen, struct scsi_cmnd *srb);
  39 void rtsx_invoke_transport(struct scsi_cmnd *srb, struct rtsx_chip *chip);
  40
  41
  42 #define rtsx_init_cmd(chip)                     ((chip)->ci = 0)
  43
  44 void rtsx_add_cmd(struct rtsx_chip *chip,
  45                 u8 cmd_type, u16 reg_addr, u8 mask, u8 data);
  46 void rtsx_send_cmd_no_wait(struct rtsx_chip *chip);
  47 int rtsx_send_cmd(struct rtsx_chip *chip, u8 card, int timeout);
  48
  49 extern inline u8 *rtsx_get_cmd_data(struct rtsx_chip *chip)
  50 {
  51 #ifdef CMD_USING_SG
  52         return (u8 *)(chip->host_sg_tbl_ptr);
  53 #else
  54         return (u8 *)(chip->host_cmds_ptr);
  55 #endif
  56 }
  57
  58 int rtsx_transfer_data(struct rtsx_chip *chip, u8 card, void *buf, size_t len,
  59                 int use_sg, enum dma_data_direction dma_dir, int timeout);
  60
  61 int rtsx_transfer_data_partial(struct rtsx_chip *chip, u8 card, void *buf, size_t len,
  62                 int use_sg, unsigned int *index, unsigned int *offset,
  63                 enum dma_data_direction dma_dir, int timeout);
  64
  65 #endif   /* __REALTEK_RTSX_TRANSPORT_H */
  66