drivers/staging/rts5208/rtsx_transport.h

   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
  20 unsigned 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);
  26 void rtsx_stor_set_xfer_buf(unsigned char *buffer, unsigned int buflen,
  27                             struct scsi_cmnd *srb);
  28 void rtsx_stor_get_xfer_buf(unsigned char *buffer, unsigned int buflen,
  29                             struct scsi_cmnd *srb);
  30 void rtsx_invoke_transport(struct scsi_cmnd *srb, struct rtsx_chip *chip);
  31
  32 #define rtsx_init_cmd(chip)                     ((chip)->ci = 0)
  33
  34 void rtsx_add_cmd(struct rtsx_chip *chip, u8 cmd_type, u16 reg_addr, u8 mask,
  35                   u8 data);
  36 void rtsx_send_cmd_no_wait(struct rtsx_chip *chip);
  37 int rtsx_send_cmd(struct rtsx_chip *chip, u8 card, int timeout);
  38
  39 static 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
  48 int 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
  52 int 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 */