LXR linux/drivers/staging/rts5208/rtsx

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * Driver for Realtek PCI-Express card reader
   4 *
   5 * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
   6 *
   7 * Author:
   8 *   Wei WANG (wei_wang@realsil.com.cn)
   9 *   Micky Ching (micky_ching@realsil.com.cn)
  10 */
  11
  12#ifndef __REALTEK_RTSX_TRANSPORT_H
  13#define __REALTEK_RTSX_TRANSPORT_H
  14
  15#include "rtsx.h"
  16#include "rtsx_chip.h"
  17
  18#define WAIT_TIME       2000
  19
  20unsigned int rtsx_stor_access_xfer_buf(unsigned char *buffer,
  21                                       unsigned int buflen,
  22                                       struct scsi_cmnd *srb,
  23                                       unsigned int *index,
  24                                       unsigned int *offset,
  25                                       enum xfer_buf_dir dir);
  26void rtsx_stor_set_xfer_buf(unsigned char *buffer, unsigned int buflen,
  27                            struct scsi_cmnd *srb);
  28void rtsx_stor_get_xfer_buf(unsigned char *buffer, unsigned int buflen,
  29                            struct scsi_cmnd *srb);
  30void rtsx_invoke_transport(struct scsi_cmnd *srb, struct rtsx_chip *chip);
  31
  32#define rtsx_init_cmd(chip)                     ((chip)->ci = 0)
  33
  34void rtsx_add_cmd(struct rtsx_chip *chip, u8 cmd_type, u16 reg_addr, u8 mask,
  35                  u8 data);
  36void rtsx_send_cmd_no_wait(struct rtsx_chip *chip);
  37int rtsx_send_cmd(struct rtsx_chip *chip, u8 card, int timeout);
  38
  39static inline u8 *rtsx_get_cmd_data(struct rtsx_chip *chip)
  40{
  41#ifdef CMD_USING_SG
  42        return (u8 *)(chip->host_sg_tbl_ptr);
  43#else
  44        return (u8 *)(chip->host_cmds_ptr);
  45#endif
  46}
  47
  48int rtsx_transfer_data(struct rtsx_chip *chip, u8 card, void *buf, size_t len,
  49                       int use_sg, enum dma_data_direction dma_dir,
  50                       int timeout);
  51
  52int rtsx_transfer_data_partial(struct rtsx_chip *chip, u8 card, void *buf,
  53                               size_t len, int use_sg, unsigned int *index,
  54                               unsigned int *offset,
  55                               enum dma_data_direction dma_dir, int timeout);
  56
  57#endif   /* __REALTEK_RTSX_TRANSPORT_H */
  58