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730876be25
Realtek USB card reader provides a channel to transfer command or data to flash memory cards. This driver exports host instances for mmc and memstick subsystems and handles basic works. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Roger Tseng <rogerable@realtek.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
628 lines
16 KiB
C
628 lines
16 KiB
C
/* Driver for Realtek RTS5139 USB card reader
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*
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* Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author:
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* Roger Tseng <rogerable@realtek.com>
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*/
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#ifndef __RTSX_USB_H
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#define __RTSX_USB_H
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#include <linux/usb.h>
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/* related module names */
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#define RTSX_USB_SD_CARD 0
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#define RTSX_USB_MS_CARD 1
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/* endpoint numbers */
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#define EP_BULK_OUT 1
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#define EP_BULK_IN 2
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#define EP_INTR_IN 3
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/* USB vendor requests */
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#define RTSX_USB_REQ_REG_OP 0x00
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#define RTSX_USB_REQ_POLL 0x02
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/* miscellaneous parameters */
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#define MIN_DIV_N 60
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#define MAX_DIV_N 120
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#define MAX_PHASE 15
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#define RX_TUNING_CNT 3
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#define QFN24 0
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#define LQFP48 1
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#define CHECK_PKG(ucr, pkg) ((ucr)->package == (pkg))
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/* data structures */
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struct rtsx_ucr {
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u16 vendor_id;
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u16 product_id;
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int package;
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u8 ic_version;
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bool is_rts5179;
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unsigned int cur_clk;
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u8 *cmd_buf;
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unsigned int cmd_idx;
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u8 *rsp_buf;
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struct usb_device *pusb_dev;
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struct usb_interface *pusb_intf;
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struct usb_sg_request current_sg;
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unsigned char *iobuf;
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dma_addr_t iobuf_dma;
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struct timer_list sg_timer;
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struct mutex dev_mutex;
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};
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/* buffer size */
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#define IOBUF_SIZE 1024
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/* prototypes of exported functions */
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extern int rtsx_usb_get_card_status(struct rtsx_ucr *ucr, u16 *status);
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extern int rtsx_usb_read_register(struct rtsx_ucr *ucr, u16 addr, u8 *data);
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extern int rtsx_usb_write_register(struct rtsx_ucr *ucr, u16 addr, u8 mask,
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u8 data);
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extern int rtsx_usb_ep0_write_register(struct rtsx_ucr *ucr, u16 addr, u8 mask,
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u8 data);
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extern int rtsx_usb_ep0_read_register(struct rtsx_ucr *ucr, u16 addr,
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u8 *data);
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extern void rtsx_usb_add_cmd(struct rtsx_ucr *ucr, u8 cmd_type,
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u16 reg_addr, u8 mask, u8 data);
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extern int rtsx_usb_send_cmd(struct rtsx_ucr *ucr, u8 flag, int timeout);
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extern int rtsx_usb_get_rsp(struct rtsx_ucr *ucr, int rsp_len, int timeout);
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extern int rtsx_usb_transfer_data(struct rtsx_ucr *ucr, unsigned int pipe,
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void *buf, unsigned int len, int use_sg,
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unsigned int *act_len, int timeout);
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extern int rtsx_usb_read_ppbuf(struct rtsx_ucr *ucr, u8 *buf, int buf_len);
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extern int rtsx_usb_write_ppbuf(struct rtsx_ucr *ucr, u8 *buf, int buf_len);
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extern int rtsx_usb_switch_clock(struct rtsx_ucr *ucr, unsigned int card_clock,
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u8 ssc_depth, bool initial_mode, bool double_clk, bool vpclk);
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extern int rtsx_usb_card_exclusive_check(struct rtsx_ucr *ucr, int card);
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/* card status */
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#define SD_CD 0x01
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#define MS_CD 0x02
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#define XD_CD 0x04
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#define CD_MASK (SD_CD | MS_CD | XD_CD)
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#define SD_WP 0x08
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/* reader command field offset & parameters */
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#define READ_REG_CMD 0
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#define WRITE_REG_CMD 1
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#define CHECK_REG_CMD 2
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#define PACKET_TYPE 4
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#define CNT_H 5
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#define CNT_L 6
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#define STAGE_FLAG 7
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#define CMD_OFFSET 8
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#define SEQ_WRITE_DATA_OFFSET 12
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#define BATCH_CMD 0
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#define SEQ_READ 1
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#define SEQ_WRITE 2
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#define STAGE_R 0x01
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#define STAGE_DI 0x02
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#define STAGE_DO 0x04
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#define STAGE_MS_STATUS 0x08
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#define STAGE_XD_STATUS 0x10
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#define MODE_C 0x00
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#define MODE_CR (STAGE_R)
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#define MODE_CDIR (STAGE_R | STAGE_DI)
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#define MODE_CDOR (STAGE_R | STAGE_DO)
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#define EP0_OP_SHIFT 14
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#define EP0_READ_REG_CMD 2
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#define EP0_WRITE_REG_CMD 3
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#define rtsx_usb_cmd_hdr_tag(ucr) \
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do { \
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ucr->cmd_buf[0] = 'R'; \
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ucr->cmd_buf[1] = 'T'; \
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ucr->cmd_buf[2] = 'C'; \
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ucr->cmd_buf[3] = 'R'; \
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} while (0)
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static inline void rtsx_usb_init_cmd(struct rtsx_ucr *ucr)
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{
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rtsx_usb_cmd_hdr_tag(ucr);
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ucr->cmd_idx = 0;
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ucr->cmd_buf[PACKET_TYPE] = BATCH_CMD;
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}
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/* internal register address */
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#define FPDCTL 0xFC00
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#define SSC_DIV_N_0 0xFC07
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#define SSC_CTL1 0xFC09
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#define SSC_CTL2 0xFC0A
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#define CFG_MODE 0xFC0E
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#define CFG_MODE_1 0xFC0F
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#define RCCTL 0xFC14
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#define SOF_WDOG 0xFC28
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#define SYS_DUMMY0 0xFC30
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#define MS_BLKEND 0xFD30
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#define MS_READ_START 0xFD31
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#define MS_READ_COUNT 0xFD32
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#define MS_WRITE_START 0xFD33
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#define MS_WRITE_COUNT 0xFD34
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#define MS_COMMAND 0xFD35
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#define MS_OLD_BLOCK_0 0xFD36
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#define MS_OLD_BLOCK_1 0xFD37
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#define MS_NEW_BLOCK_0 0xFD38
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#define MS_NEW_BLOCK_1 0xFD39
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#define MS_LOG_BLOCK_0 0xFD3A
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#define MS_LOG_BLOCK_1 0xFD3B
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#define MS_BUS_WIDTH 0xFD3C
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#define MS_PAGE_START 0xFD3D
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#define MS_PAGE_LENGTH 0xFD3E
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#define MS_CFG 0xFD40
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#define MS_TPC 0xFD41
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#define MS_TRANS_CFG 0xFD42
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#define MS_TRANSFER 0xFD43
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#define MS_INT_REG 0xFD44
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#define MS_BYTE_CNT 0xFD45
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#define MS_SECTOR_CNT_L 0xFD46
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#define MS_SECTOR_CNT_H 0xFD47
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#define MS_DBUS_H 0xFD48
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#define CARD_DMA1_CTL 0xFD5C
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#define CARD_PULL_CTL1 0xFD60
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#define CARD_PULL_CTL2 0xFD61
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#define CARD_PULL_CTL3 0xFD62
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#define CARD_PULL_CTL4 0xFD63
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#define CARD_PULL_CTL5 0xFD64
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#define CARD_PULL_CTL6 0xFD65
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#define CARD_EXIST 0xFD6F
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#define CARD_INT_PEND 0xFD71
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#define LDO_POWER_CFG 0xFD7B
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#define SD_CFG1 0xFDA0
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#define SD_CFG2 0xFDA1
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#define SD_CFG3 0xFDA2
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#define SD_STAT1 0xFDA3
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#define SD_STAT2 0xFDA4
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#define SD_BUS_STAT 0xFDA5
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#define SD_PAD_CTL 0xFDA6
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#define SD_SAMPLE_POINT_CTL 0xFDA7
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#define SD_PUSH_POINT_CTL 0xFDA8
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#define SD_CMD0 0xFDA9
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#define SD_CMD1 0xFDAA
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#define SD_CMD2 0xFDAB
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#define SD_CMD3 0xFDAC
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#define SD_CMD4 0xFDAD
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#define SD_CMD5 0xFDAE
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#define SD_BYTE_CNT_L 0xFDAF
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#define SD_BYTE_CNT_H 0xFDB0
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#define SD_BLOCK_CNT_L 0xFDB1
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#define SD_BLOCK_CNT_H 0xFDB2
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#define SD_TRANSFER 0xFDB3
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#define SD_CMD_STATE 0xFDB5
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#define SD_DATA_STATE 0xFDB6
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#define SD_VPCLK0_CTL 0xFC2A
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#define SD_VPCLK1_CTL 0xFC2B
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#define SD_DCMPS0_CTL 0xFC2C
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#define SD_DCMPS1_CTL 0xFC2D
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#define CARD_DMA1_CTL 0xFD5C
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#define HW_VERSION 0xFC01
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#define SSC_CLK_FPGA_SEL 0xFC02
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#define CLK_DIV 0xFC03
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#define SFSM_ED 0xFC04
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#define CD_DEGLITCH_WIDTH 0xFC20
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#define CD_DEGLITCH_EN 0xFC21
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#define AUTO_DELINK_EN 0xFC23
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#define FPGA_PULL_CTL 0xFC1D
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#define CARD_CLK_SOURCE 0xFC2E
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#define CARD_SHARE_MODE 0xFD51
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#define CARD_DRIVE_SEL 0xFD52
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#define CARD_STOP 0xFD53
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#define CARD_OE 0xFD54
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#define CARD_AUTO_BLINK 0xFD55
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#define CARD_GPIO 0xFD56
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#define SD30_DRIVE_SEL 0xFD57
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#define CARD_DATA_SOURCE 0xFD5D
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#define CARD_SELECT 0xFD5E
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#define CARD_CLK_EN 0xFD79
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#define CARD_PWR_CTL 0xFD7A
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#define OCPCTL 0xFD80
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#define OCPPARA1 0xFD81
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#define OCPPARA2 0xFD82
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#define OCPSTAT 0xFD83
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#define HS_USB_STAT 0xFE01
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#define HS_VCONTROL 0xFE26
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#define HS_VSTAIN 0xFE27
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#define HS_VLOADM 0xFE28
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#define HS_VSTAOUT 0xFE29
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#define MC_IRQ 0xFF00
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#define MC_IRQEN 0xFF01
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#define MC_FIFO_CTL 0xFF02
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#define MC_FIFO_BC0 0xFF03
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#define MC_FIFO_BC1 0xFF04
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#define MC_FIFO_STAT 0xFF05
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#define MC_FIFO_MODE 0xFF06
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#define MC_FIFO_RD_PTR0 0xFF07
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#define MC_FIFO_RD_PTR1 0xFF08
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#define MC_DMA_CTL 0xFF10
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#define MC_DMA_TC0 0xFF11
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#define MC_DMA_TC1 0xFF12
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#define MC_DMA_TC2 0xFF13
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#define MC_DMA_TC3 0xFF14
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#define MC_DMA_RST 0xFF15
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#define RBUF_SIZE_MASK 0xFBFF
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#define RBUF_BASE 0xF000
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#define PPBUF_BASE1 0xF800
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#define PPBUF_BASE2 0xFA00
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/* internal register value macros */
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#define POWER_OFF 0x03
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#define PARTIAL_POWER_ON 0x02
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#define POWER_ON 0x00
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#define POWER_MASK 0x03
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#define LDO3318_PWR_MASK 0x0C
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#define LDO_ON 0x00
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#define LDO_SUSPEND 0x08
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#define LDO_OFF 0x0C
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#define DV3318_AUTO_PWR_OFF 0x10
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#define FORCE_LDO_POWERB 0x60
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/* LDO_POWER_CFG */
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#define TUNE_SD18_MASK 0x1C
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#define TUNE_SD18_1V7 0x00
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#define TUNE_SD18_1V8 (0x01 << 2)
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#define TUNE_SD18_1V9 (0x02 << 2)
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#define TUNE_SD18_2V0 (0x03 << 2)
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#define TUNE_SD18_2V7 (0x04 << 2)
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#define TUNE_SD18_2V8 (0x05 << 2)
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#define TUNE_SD18_2V9 (0x06 << 2)
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#define TUNE_SD18_3V3 (0x07 << 2)
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/* CLK_DIV */
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#define CLK_CHANGE 0x80
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#define CLK_DIV_1 0x00
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#define CLK_DIV_2 0x01
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#define CLK_DIV_4 0x02
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#define CLK_DIV_8 0x03
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#define SSC_POWER_MASK 0x01
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#define SSC_POWER_DOWN 0x01
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#define SSC_POWER_ON 0x00
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#define FPGA_VER 0x80
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#define HW_VER_MASK 0x0F
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#define EXTEND_DMA1_ASYNC_SIGNAL 0x02
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/* CFG_MODE*/
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#define XTAL_FREE 0x80
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#define CLK_MODE_MASK 0x03
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#define CLK_MODE_12M_XTAL 0x00
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#define CLK_MODE_NON_XTAL 0x01
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#define CLK_MODE_24M_OSC 0x02
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#define CLK_MODE_48M_OSC 0x03
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/* CFG_MODE_1*/
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#define RTS5179 0x02
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#define NYET_EN 0x01
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#define NYET_MSAK 0x01
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#define SD30_DRIVE_MASK 0x07
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#define SD20_DRIVE_MASK 0x03
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#define DISABLE_SD_CD 0x08
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#define DISABLE_MS_CD 0x10
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#define DISABLE_XD_CD 0x20
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#define SD_CD_DEGLITCH_EN 0x01
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#define MS_CD_DEGLITCH_EN 0x02
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#define XD_CD_DEGLITCH_EN 0x04
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#define CARD_SHARE_LQFP48 0x04
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#define CARD_SHARE_QFN24 0x00
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#define CARD_SHARE_LQFP_SEL 0x04
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#define CARD_SHARE_XD 0x00
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#define CARD_SHARE_SD 0x01
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#define CARD_SHARE_MS 0x02
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#define CARD_SHARE_MASK 0x03
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/* SD30_DRIVE_SEL */
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#define DRIVER_TYPE_A 0x05
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#define DRIVER_TYPE_B 0x03
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#define DRIVER_TYPE_C 0x02
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#define DRIVER_TYPE_D 0x01
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/* SD_BUS_STAT */
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#define SD_CLK_TOGGLE_EN 0x80
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#define SD_CLK_FORCE_STOP 0x40
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#define SD_DAT3_STATUS 0x10
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#define SD_DAT2_STATUS 0x08
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#define SD_DAT1_STATUS 0x04
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#define SD_DAT0_STATUS 0x02
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#define SD_CMD_STATUS 0x01
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/* SD_PAD_CTL */
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#define SD_IO_USING_1V8 0x80
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#define SD_IO_USING_3V3 0x7F
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#define TYPE_A_DRIVING 0x00
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#define TYPE_B_DRIVING 0x01
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#define TYPE_C_DRIVING 0x02
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#define TYPE_D_DRIVING 0x03
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/* CARD_CLK_EN */
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#define SD_CLK_EN 0x04
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#define MS_CLK_EN 0x08
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/* CARD_SELECT */
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#define SD_MOD_SEL 2
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#define MS_MOD_SEL 3
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/* CARD_SHARE_MODE */
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#define CARD_SHARE_LQFP48 0x04
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#define CARD_SHARE_QFN24 0x00
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#define CARD_SHARE_LQFP_SEL 0x04
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#define CARD_SHARE_XD 0x00
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#define CARD_SHARE_SD 0x01
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#define CARD_SHARE_MS 0x02
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#define CARD_SHARE_MASK 0x03
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/* SSC_CTL1 */
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#define SSC_RSTB 0x80
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#define SSC_8X_EN 0x40
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#define SSC_FIX_FRAC 0x20
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#define SSC_SEL_1M 0x00
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#define SSC_SEL_2M 0x08
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#define SSC_SEL_4M 0x10
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#define SSC_SEL_8M 0x18
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/* SSC_CTL2 */
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#define SSC_DEPTH_MASK 0x03
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#define SSC_DEPTH_DISALBE 0x00
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#define SSC_DEPTH_2M 0x01
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#define SSC_DEPTH_1M 0x02
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#define SSC_DEPTH_512K 0x03
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/* SD_VPCLK0_CTL */
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#define PHASE_CHANGE 0x80
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#define PHASE_NOT_RESET 0x40
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/* SD_TRANSFER */
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#define SD_TRANSFER_START 0x80
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#define SD_TRANSFER_END 0x40
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#define SD_STAT_IDLE 0x20
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#define SD_TRANSFER_ERR 0x10
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#define SD_TM_NORMAL_WRITE 0x00
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#define SD_TM_AUTO_WRITE_3 0x01
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#define SD_TM_AUTO_WRITE_4 0x02
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#define SD_TM_AUTO_READ_3 0x05
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#define SD_TM_AUTO_READ_4 0x06
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#define SD_TM_CMD_RSP 0x08
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#define SD_TM_AUTO_WRITE_1 0x09
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#define SD_TM_AUTO_WRITE_2 0x0A
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#define SD_TM_NORMAL_READ 0x0C
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#define SD_TM_AUTO_READ_1 0x0D
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#define SD_TM_AUTO_READ_2 0x0E
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#define SD_TM_AUTO_TUNING 0x0F
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/* SD_CFG1 */
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#define SD_CLK_DIVIDE_0 0x00
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#define SD_CLK_DIVIDE_256 0xC0
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#define SD_CLK_DIVIDE_128 0x80
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#define SD_CLK_DIVIDE_MASK 0xC0
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#define SD_BUS_WIDTH_1BIT 0x00
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#define SD_BUS_WIDTH_4BIT 0x01
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#define SD_BUS_WIDTH_8BIT 0x02
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#define SD_ASYNC_FIFO_RST 0x10
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#define SD_20_MODE 0x00
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#define SD_DDR_MODE 0x04
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#define SD_30_MODE 0x08
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/* SD_CFG2 */
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#define SD_CALCULATE_CRC7 0x00
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#define SD_NO_CALCULATE_CRC7 0x80
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#define SD_CHECK_CRC16 0x00
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#define SD_NO_CHECK_CRC16 0x40
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#define SD_WAIT_CRC_TO_EN 0x20
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#define SD_WAIT_BUSY_END 0x08
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#define SD_NO_WAIT_BUSY_END 0x00
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#define SD_CHECK_CRC7 0x00
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#define SD_NO_CHECK_CRC7 0x04
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#define SD_RSP_LEN_0 0x00
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#define SD_RSP_LEN_6 0x01
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#define SD_RSP_LEN_17 0x02
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#define SD_RSP_TYPE_R0 0x04
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#define SD_RSP_TYPE_R1 0x01
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#define SD_RSP_TYPE_R1b 0x09
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#define SD_RSP_TYPE_R2 0x02
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#define SD_RSP_TYPE_R3 0x05
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#define SD_RSP_TYPE_R4 0x05
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#define SD_RSP_TYPE_R5 0x01
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#define SD_RSP_TYPE_R6 0x01
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#define SD_RSP_TYPE_R7 0x01
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/* SD_STAT1 */
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#define SD_CRC7_ERR 0x80
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#define SD_CRC16_ERR 0x40
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#define SD_CRC_WRITE_ERR 0x20
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#define SD_CRC_WRITE_ERR_MASK 0x1C
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#define GET_CRC_TIME_OUT 0x02
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#define SD_TUNING_COMPARE_ERR 0x01
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/* SD_DATA_STATE */
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#define SD_DATA_IDLE 0x80
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/* CARD_DATA_SOURCE */
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#define PINGPONG_BUFFER 0x01
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#define RING_BUFFER 0x00
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/* CARD_OE */
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#define SD_OUTPUT_EN 0x04
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#define MS_OUTPUT_EN 0x08
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/* CARD_STOP */
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#define SD_STOP 0x04
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#define MS_STOP 0x08
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#define SD_CLR_ERR 0x40
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#define MS_CLR_ERR 0x80
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/* CARD_CLK_SOURCE */
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#define CRC_FIX_CLK (0x00 << 0)
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#define CRC_VAR_CLK0 (0x01 << 0)
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#define CRC_VAR_CLK1 (0x02 << 0)
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#define SD30_FIX_CLK (0x00 << 2)
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#define SD30_VAR_CLK0 (0x01 << 2)
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#define SD30_VAR_CLK1 (0x02 << 2)
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#define SAMPLE_FIX_CLK (0x00 << 4)
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#define SAMPLE_VAR_CLK0 (0x01 << 4)
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#define SAMPLE_VAR_CLK1 (0x02 << 4)
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/* SD_SAMPLE_POINT_CTL */
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#define DDR_FIX_RX_DAT 0x00
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#define DDR_VAR_RX_DAT 0x80
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#define DDR_FIX_RX_DAT_EDGE 0x00
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#define DDR_FIX_RX_DAT_14_DELAY 0x40
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#define DDR_FIX_RX_CMD 0x00
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#define DDR_VAR_RX_CMD 0x20
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#define DDR_FIX_RX_CMD_POS_EDGE 0x00
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#define DDR_FIX_RX_CMD_14_DELAY 0x10
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#define SD20_RX_POS_EDGE 0x00
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#define SD20_RX_14_DELAY 0x08
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#define SD20_RX_SEL_MASK 0x08
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/* SD_PUSH_POINT_CTL */
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#define DDR_FIX_TX_CMD_DAT 0x00
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#define DDR_VAR_TX_CMD_DAT 0x80
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#define DDR_FIX_TX_DAT_14_TSU 0x00
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#define DDR_FIX_TX_DAT_12_TSU 0x40
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#define DDR_FIX_TX_CMD_NEG_EDGE 0x00
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#define DDR_FIX_TX_CMD_14_AHEAD 0x20
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#define SD20_TX_NEG_EDGE 0x00
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#define SD20_TX_14_AHEAD 0x10
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#define SD20_TX_SEL_MASK 0x10
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#define DDR_VAR_SDCLK_POL_SWAP 0x01
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/* MS_CFG */
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#define SAMPLE_TIME_RISING 0x00
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#define SAMPLE_TIME_FALLING 0x80
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#define PUSH_TIME_DEFAULT 0x00
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#define PUSH_TIME_ODD 0x40
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#define NO_EXTEND_TOGGLE 0x00
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#define EXTEND_TOGGLE_CHK 0x20
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#define MS_BUS_WIDTH_1 0x00
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#define MS_BUS_WIDTH_4 0x10
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#define MS_BUS_WIDTH_8 0x18
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#define MS_2K_SECTOR_MODE 0x04
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#define MS_512_SECTOR_MODE 0x00
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#define MS_TOGGLE_TIMEOUT_EN 0x00
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#define MS_TOGGLE_TIMEOUT_DISEN 0x01
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#define MS_NO_CHECK_INT 0x02
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/* MS_TRANS_CFG */
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#define WAIT_INT 0x80
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#define NO_WAIT_INT 0x00
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#define NO_AUTO_READ_INT_REG 0x00
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#define AUTO_READ_INT_REG 0x40
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#define MS_CRC16_ERR 0x20
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#define MS_RDY_TIMEOUT 0x10
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#define MS_INT_CMDNK 0x08
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#define MS_INT_BREQ 0x04
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#define MS_INT_ERR 0x02
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#define MS_INT_CED 0x01
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/* MS_TRANSFER */
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#define MS_TRANSFER_START 0x80
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#define MS_TRANSFER_END 0x40
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#define MS_TRANSFER_ERR 0x20
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#define MS_BS_STATE 0x10
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#define MS_TM_READ_BYTES 0x00
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#define MS_TM_NORMAL_READ 0x01
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#define MS_TM_WRITE_BYTES 0x04
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#define MS_TM_NORMAL_WRITE 0x05
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#define MS_TM_AUTO_READ 0x08
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#define MS_TM_AUTO_WRITE 0x0C
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#define MS_TM_SET_CMD 0x06
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#define MS_TM_COPY_PAGE 0x07
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#define MS_TM_MULTI_READ 0x02
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#define MS_TM_MULTI_WRITE 0x03
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/* MC_FIFO_CTL */
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#define FIFO_FLUSH 0x01
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/* MC_DMA_RST */
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#define DMA_RESET 0x01
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/* MC_DMA_CTL */
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#define DMA_TC_EQ_0 0x80
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#define DMA_DIR_TO_CARD 0x00
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#define DMA_DIR_FROM_CARD 0x02
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#define DMA_EN 0x01
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#define DMA_128 (0 << 2)
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#define DMA_256 (1 << 2)
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#define DMA_512 (2 << 2)
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#define DMA_1024 (3 << 2)
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#define DMA_PACK_SIZE_MASK 0x0C
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/* CARD_INT_PEND */
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#define XD_INT 0x10
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#define MS_INT 0x08
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#define SD_INT 0x04
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/* LED operations*/
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static inline int rtsx_usb_turn_on_led(struct rtsx_ucr *ucr)
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{
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return rtsx_usb_ep0_write_register(ucr, CARD_GPIO, 0x03, 0x02);
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}
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static inline int rtsx_usb_turn_off_led(struct rtsx_ucr *ucr)
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{
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return rtsx_usb_ep0_write_register(ucr, CARD_GPIO, 0x03, 0x03);
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}
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/* HW error clearing */
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static inline void rtsx_usb_clear_fsm_err(struct rtsx_ucr *ucr)
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{
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rtsx_usb_ep0_write_register(ucr, SFSM_ED, 0xf8, 0xf8);
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}
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static inline void rtsx_usb_clear_dma_err(struct rtsx_ucr *ucr)
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{
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rtsx_usb_ep0_write_register(ucr, MC_FIFO_CTL,
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FIFO_FLUSH, FIFO_FLUSH);
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rtsx_usb_ep0_write_register(ucr, MC_DMA_RST, DMA_RESET, DMA_RESET);
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}
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#endif /* __RTS51139_H */
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