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rtsx_usb.h
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/* SPDX-License-Identifier: GPL-2.0-only */ /* Driver for Realtek RTS5139 USB card reader * * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved. * * Author: * Roger Tseng <rogerable@realtek.com> */ #ifndef __RTSX_USB_H #define __RTSX_USB_H #include <linux/usb.h> /* related module names */ #define RTSX_USB_SD_CARD 0 #define RTSX_USB_MS_CARD 1 /* endpoint numbers */ #define EP_BULK_OUT 1 #define EP_BULK_IN 2 #define EP_INTR_IN 3 /* USB vendor requests */ #define RTSX_USB_REQ_REG_OP 0x00 #define RTSX_USB_REQ_POLL 0x02 /* miscellaneous parameters */ #define MIN_DIV_N 60 #define MAX_DIV_N 120 #define MAX_PHASE 15 #define RX_TUNING_CNT 3 #define QFN24 0 #define LQFP48 1 #define CHECK_PKG(ucr, pkg) ((ucr)->package == (pkg)) /* data structures */ struct rtsx_ucr { u16 vendor_id; u16 product_id; int package; u8 ic_version; bool is_rts5179; unsigned int cur_clk; u8 *cmd_buf; unsigned int cmd_idx; u8 *rsp_buf; struct usb_device *pusb_dev; struct usb_interface *pusb_intf; struct usb_sg_request current_sg; struct timer_list sg_timer; struct mutex dev_mutex; }; /* buffer size */ #define IOBUF_SIZE 1024 /* prototypes of exported functions */ extern int rtsx_usb_get_card_status(struct rtsx_ucr *ucr, u16 *status); extern int rtsx_usb_read_register(struct rtsx_ucr *ucr, u16 addr, u8 *data); extern int rtsx_usb_write_register(struct rtsx_ucr *ucr, u16 addr, u8 mask, u8 data); extern int rtsx_usb_ep0_write_register(struct rtsx_ucr *ucr, u16 addr, u8 mask, u8 data); extern int rtsx_usb_ep0_read_register(struct rtsx_ucr *ucr, u16 addr, u8 *data); extern void rtsx_usb_add_cmd(struct rtsx_ucr *ucr, u8 cmd_type, u16 reg_addr, u8 mask, u8 data); extern int rtsx_usb_send_cmd(struct rtsx_ucr *ucr, u8 flag, int timeout); extern int rtsx_usb_get_rsp(struct rtsx_ucr *ucr, int rsp_len, int timeout); extern int rtsx_usb_transfer_data(struct rtsx_ucr *ucr, unsigned int pipe, void *buf, unsigned int len, int use_sg, unsigned int *act_len, int timeout); extern int rtsx_usb_read_ppbuf(struct rtsx_ucr *ucr, u8 *buf, int buf_len); extern int rtsx_usb_write_ppbuf(struct rtsx_ucr *ucr, u8 *buf, int buf_len); extern int rtsx_usb_switch_clock(struct rtsx_ucr *ucr, unsigned int card_clock, u8 ssc_depth, bool initial_mode, bool double_clk, bool vpclk); extern int rtsx_usb_card_exclusive_check(struct rtsx_ucr *ucr, int card); /* card status */ #define SD_CD 0x01 #define MS_CD 0x02 #define XD_CD 0x04 #define CD_MASK (SD_CD | MS_CD | XD_CD) #define SD_WP 0x08 /* reader command field offset & parameters */ #define READ_REG_CMD 0 #define WRITE_REG_CMD 1 #define CHECK_REG_CMD 2 #define PACKET_TYPE 4 #define CNT_H 5 #define CNT_L 6 #define STAGE_FLAG 7 #define CMD_OFFSET 8 #define SEQ_WRITE_DATA_OFFSET 12 #define BATCH_CMD 0 #define SEQ_READ 1 #define SEQ_WRITE 2 #define STAGE_R 0x01 #define STAGE_DI 0x02 #define STAGE_DO 0x04 #define STAGE_MS_STATUS 0x08 #define STAGE_XD_STATUS 0x10 #define MODE_C 0x00 #define MODE_CR (STAGE_R) #define MODE_CDIR (STAGE_R | STAGE_DI) #define MODE_CDOR (STAGE_R | STAGE_DO) #define EP0_OP_SHIFT 14 #define EP0_READ_REG_CMD 2 #define EP0_WRITE_REG_CMD 3 #define rtsx_usb_cmd_hdr_tag(ucr) \ do { \ ucr->cmd_buf[0] = 'R'; \ ucr->cmd_buf[1] = 'T'; \ ucr->cmd_buf[2] = 'C'; \ ucr->cmd_buf[3] = 'R'; \ } while (0) static inline void rtsx_usb_init_cmd(struct rtsx_ucr *ucr) { rtsx_usb_cmd_hdr_tag(ucr); ucr->cmd_idx = 0; ucr->cmd_buf[PACKET_TYPE] = BATCH_CMD; } /* internal register address */ #define FPDCTL 0xFC00 #define SSC_DIV_N_0 0xFC07 #define SSC_CTL1 0xFC09 #define SSC_CTL2 0xFC0A #define CFG_MODE 0xFC0E #define CFG_MODE_1 0xFC0F #define RCCTL 0xFC14 #define SOF_WDOG 0xFC28 #define SYS_DUMMY0 0xFC30 #define MS_BLKEND 0xFD30 #define MS_READ_START 0xFD31 #define MS_READ_COUNT 0xFD32 #define MS_WRITE_START 0xFD33 #define MS_WRITE_COUNT 0xFD34 #define MS_COMMAND 0xFD35 #define MS_OLD_BLOCK_0 0xFD36 #define MS_OLD_BLOCK_1 0xFD37 #define MS_NEW_BLOCK_0 0xFD38 #define MS_NEW_BLOCK_1 0xFD39 #define MS_LOG_BLOCK_0 0xFD3A #define MS_LOG_BLOCK_1 0xFD3B #define MS_BUS_WIDTH 0xFD3C #define MS_PAGE_START 0xFD3D #define MS_PAGE_LENGTH 0xFD3E #define MS_CFG 0xFD40 #define MS_TPC 0xFD41 #define MS_TRANS_CFG 0xFD42 #define MS_TRANSFER 0xFD43 #define MS_INT_REG 0xFD44 #define MS_BYTE_CNT 0xFD45 #define MS_SECTOR_CNT_L 0xFD46 #define MS_SECTOR_CNT_H 0xFD47 #define MS_DBUS_H 0xFD48 #define CARD_DMA1_CTL 0xFD5C #define CARD_PULL_CTL1 0xFD60 #define CARD_PULL_CTL2 0xFD61 #define CARD_PULL_CTL3 0xFD62 #define CARD_PULL_CTL4 0xFD63 #define CARD_PULL_CTL5 0xFD64 #define CARD_PULL_CTL6 0xFD65 #define CARD_EXIST 0xFD6F #define CARD_INT_PEND 0xFD71 #define LDO_POWER_CFG 0xFD7B #define SD_CFG1 0xFDA0 #define SD_CFG2 0xFDA1 #define SD_CFG3 0xFDA2 #define SD_STAT1 0xFDA3 #define SD_STAT2 0xFDA4 #define SD_BUS_STAT 0xFDA5 #define SD_PAD_CTL 0xFDA6 #define SD_SAMPLE_POINT_CTL 0xFDA7 #define SD_PUSH_POINT_CTL 0xFDA8 #define SD_CMD0 0xFDA9 #define SD_CMD1 0xFDAA #define SD_CMD2 0xFDAB #define SD_CMD3 0xFDAC #define SD_CMD4 0xFDAD #define SD_CMD5 0xFDAE #define SD_BYTE_CNT_L 0xFDAF #define SD_BYTE_CNT_H 0xFDB0 #define SD_BLOCK_CNT_L 0xFDB1 #define SD_BLOCK_CNT_H 0xFDB2 #define SD_TRANSFER 0xFDB3 #define SD_CMD_STATE 0xFDB5 #define SD_DATA_STATE 0xFDB6 #define SD_VPCLK0_CTL 0xFC2A #define SD_VPCLK1_CTL 0xFC2B #define SD_DCMPS0_CTL 0xFC2C #define SD_DCMPS1_CTL 0xFC2D #define CARD_DMA1_CTL 0xFD5C #define HW_VERSION 0xFC01 #define SSC_CLK_FPGA_SEL 0xFC02 #define CLK_DIV 0xFC03 #define SFSM_ED 0xFC04 #define CD_DEGLITCH_WIDTH 0xFC20 #define CD_DEGLITCH_EN 0xFC21 #define AUTO_DELINK_EN 0xFC23 #define FPGA_PULL_CTL 0xFC1D #define CARD_CLK_SOURCE 0xFC2E #define CARD_SHARE_MODE 0xFD51 #define CARD_DRIVE_SEL 0xFD52 #define CARD_STOP 0xFD53 #define CARD_OE 0xFD54 #define CARD_AUTO_BLINK 0xFD55 #define CARD_GPIO 0xFD56 #define SD30_DRIVE_SEL 0xFD57 #define CARD_DATA_SOURCE 0xFD5D #define CARD_SELECT 0xFD5E #define CARD_CLK_EN 0xFD79 #define CARD_PWR_CTL 0xFD7A #define OCPCTL 0xFD80 #define OCPPARA1 0xFD81 #define OCPPARA2 0xFD82 #define OCPSTAT 0xFD83 #define HS_USB_STAT 0xFE01 #define HS_VCONTROL 0xFE26 #define HS_VSTAIN 0xFE27 #define HS_VLOADM 0xFE28 #define HS_VSTAOUT 0xFE29 #define MC_IRQ 0xFF00 #define MC_IRQEN 0xFF01 #define MC_FIFO_CTL 0xFF02 #define MC_FIFO_BC0 0xFF03 #define MC_FIFO_BC1 0xFF04 #define MC_FIFO_STAT 0xFF05 #define MC_FIFO_MODE 0xFF06 #define MC_FIFO_RD_PTR0 0xFF07 #define MC_FIFO_RD_PTR1 0xFF08 #define MC_DMA_CTL 0xFF10 #define MC_DMA_TC0 0xFF11 #define MC_DMA_TC1 0xFF12 #define MC_DMA_TC2 0xFF13 #define MC_DMA_TC3 0xFF14 #define MC_DMA_RST 0xFF15 #define RBUF_SIZE_MASK 0xFBFF #define RBUF_BASE 0xF000 #define PPBUF_BASE1 0xF800 #define PPBUF_BASE2 0xFA00 /* internal register value macros */ #define POWER_OFF 0x03 #define PARTIAL_POWER_ON 0x02 #define POWER_ON 0x00 #define POWER_MASK 0x03 #define LDO3318_PWR_MASK 0x0C #define LDO_ON 0x00 #define LDO_SUSPEND 0x08 #define LDO_OFF 0x0C #define DV3318_AUTO_PWR_OFF 0x10 #define FORCE_LDO_POWERB 0x60 /* LDO_POWER_CFG */ #define TUNE_SD18_MASK 0x1C #define TUNE_SD18_1V7 0x00 #define TUNE_SD18_1V8 (0x01 << 2) #define TUNE_SD18_1V9 (0x02 << 2) #define TUNE_SD18_2V0 (0x03 << 2) #define TUNE_SD18_2V7 (0x04 << 2) #define TUNE_SD18_2V8 (0x05 << 2) #define TUNE_SD18_2V9 (0x06 << 2) #define TUNE_SD18_3V3 (0x07 << 2) /* CLK_DIV */ #define CLK_CHANGE 0x80 #define CLK_DIV_1 0x00 #define CLK_DIV_2 0x01 #define CLK_DIV_4 0x02 #define CLK_DIV_8 0x03 #define SSC_POWER_MASK 0x01 #define SSC_POWER_DOWN 0x01 #define SSC_POWER_ON 0x00 #define FPGA_VER 0x80 #define HW_VER_MASK 0x0F #define EXTEND_DMA1_ASYNC_SIGNAL 0x02 /* CFG_MODE*/ #define XTAL_FREE 0x80 #define CLK_MODE_MASK 0x03 #define CLK_MODE_12M_XTAL 0x00 #define CLK_MODE_NON_XTAL 0x01 #define CLK_MODE_24M_OSC 0x02 #define CLK_MODE_48M_OSC 0x03 /* CFG_MODE_1*/ #define RTS5179 0x02 #define NYET_EN 0x01 #define NYET_MSAK 0x01 #define SD30_DRIVE_MASK 0x07 #define SD20_DRIVE_MASK 0x03 #define DISABLE_SD_CD 0x08 #define DISABLE_MS_CD 0x10 #define DISABLE_XD_CD 0x20 #define SD_CD_DEGLITCH_EN 0x01 #define MS_CD_DEGLITCH_EN 0x02 #define XD_CD_DEGLITCH_EN 0x04 #define CARD_SHARE_LQFP48 0x04 #define CARD_SHARE_QFN24 0x00 #define CARD_SHARE_LQFP_SEL 0x04 #define CARD_SHARE_XD 0x00 #define CARD_SHARE_SD 0x01 #define CARD_SHARE_MS 0x02 #define CARD_SHARE_MASK 0x03 /* SD30_DRIVE_SEL */ #define DRIVER_TYPE_A 0x05 #define DRIVER_TYPE_B 0x03 #define DRIVER_TYPE_C 0x02 #define DRIVER_TYPE_D 0x01 /* SD_BUS_STAT */ #define SD_CLK_TOGGLE_EN 0x80 #define SD_CLK_FORCE_STOP 0x40 #define SD_DAT3_STATUS 0x10 #define SD_DAT2_STATUS 0x08 #define SD_DAT1_STATUS 0x04 #define SD_DAT0_STATUS 0x02 #define SD_CMD_STATUS 0x01 /* SD_PAD_CTL */ #define SD_IO_USING_1V8 0x80 #define SD_IO_USING_3V3 0x7F #define TYPE_A_DRIVING 0x00 #define TYPE_B_DRIVING 0x01 #define TYPE_C_DRIVING 0x02 #define TYPE_D_DRIVING 0x03 /* CARD_CLK_EN */ #define SD_CLK_EN 0x04 #define MS_CLK_EN 0x08 /* CARD_SELECT */ #define SD_MOD_SEL 2 #define MS_MOD_SEL 3 /* CARD_SHARE_MODE */ #define CARD_SHARE_LQFP48 0x04 #define CARD_SHARE_QFN24 0x00 #define CARD_SHARE_LQFP_SEL 0x04 #define CARD_SHARE_XD 0x00 #define CARD_SHARE_SD 0x01 #define CARD_SHARE_MS 0x02 #define CARD_SHARE_MASK 0x03 /* SSC_CTL1 */ #define SSC_RSTB 0x80 #define SSC_8X_EN 0x40 #define SSC_FIX_FRAC 0x20 #define SSC_SEL_1M 0x00 #define SSC_SEL_2M 0x08 #define SSC_SEL_4M 0x10 #define SSC_SEL_8M 0x18 /* SSC_CTL2 */ #define SSC_DEPTH_MASK 0x03 #define SSC_DEPTH_DISALBE 0x00 #define SSC_DEPTH_2M 0x01 #define SSC_DEPTH_1M 0x02 #define SSC_DEPTH_512K 0x03 /* SD_VPCLK0_CTL */ #define PHASE_CHANGE 0x80 #define PHASE_NOT_RESET 0x40 /* SD_TRANSFER */ #define SD_TRANSFER_START 0x80 #define SD_TRANSFER_END 0x40 #define SD_STAT_IDLE 0x20 #define SD_TRANSFER_ERR 0x10 #define SD_TM_NORMAL_WRITE 0x00 #define SD_TM_AUTO_WRITE_3 0x01 #define SD_TM_AUTO_WRITE_4 0x02 #define SD_TM_AUTO_READ_3 0x05 #define SD_TM_AUTO_READ_4 0x06 #define SD_TM_CMD_RSP 0x08 #define SD_TM_AUTO_WRITE_1 0x09 #define SD_TM_AUTO_WRITE_2 0x0A #define SD_TM_NORMAL_READ 0x0C #define SD_TM_AUTO_READ_1 0x0D #define SD_TM_AUTO_READ_2 0x0E #define SD_TM_AUTO_TUNING 0x0F /* SD_CFG1 */ #define SD_CLK_DIVIDE_0 0x00 #define SD_CLK_DIVIDE_256 0xC0 #define SD_CLK_DIVIDE_128 0x80 #define SD_CLK_DIVIDE_MASK 0xC0 #define SD_BUS_WIDTH_1BIT 0x00 #define SD_BUS_WIDTH_4BIT 0x01 #define SD_BUS_WIDTH_8BIT 0x02 #define SD_ASYNC_FIFO_RST 0x10 #define SD_20_MODE 0x00 #define SD_DDR_MODE 0x04 #define SD_30_MODE 0x08 /* SD_CFG2 */ #define SD_CALCULATE_CRC7 0x00 #define SD_NO_CALCULATE_CRC7 0x80 #define SD_CHECK_CRC16 0x00 #define SD_NO_CHECK_CRC16 0x40 #define SD_WAIT_CRC_TO_EN 0x20 #define SD_WAIT_BUSY_END 0x08 #define SD_NO_WAIT_BUSY_END 0x00 #define SD_CHECK_CRC7 0x00 #define SD_NO_CHECK_CRC7 0x04 #define SD_RSP_LEN_0 0x00 #define SD_RSP_LEN_6 0x01 #define SD_RSP_LEN_17 0x02 #define SD_RSP_TYPE_R0 0x04 #define SD_RSP_TYPE_R1 0x01 #define SD_RSP_TYPE_R1b 0x09 #define SD_RSP_TYPE_R2 0x02 #define SD_RSP_TYPE_R3 0x05 #define SD_RSP_TYPE_R4 0x05 #define SD_RSP_TYPE_R5 0x01 #define SD_RSP_TYPE_R6 0x01 #define SD_RSP_TYPE_R7 0x01 /* SD_STAT1 */ #define SD_CRC7_ERR 0x80 #define SD_CRC16_ERR 0x40 #define SD_CRC_WRITE_ERR 0x20 #define SD_CRC_WRITE_ERR_MASK 0x1C #define GET_CRC_TIME_OUT 0x02 #define SD_TUNING_COMPARE_ERR 0x01 /* SD_DATA_STATE */ #define SD_DATA_IDLE 0x80 /* CARD_DATA_SOURCE */ #define PINGPONG_BUFFER 0x01 #define RING_BUFFER 0x00 /* CARD_OE */ #define SD_OUTPUT_EN 0x04 #define MS_OUTPUT_EN 0x08 /* CARD_STOP */ #define SD_STOP 0x04 #define MS_STOP 0x08 #define SD_CLR_ERR 0x40 #define MS_CLR_ERR 0x80 /* CARD_CLK_SOURCE */ #define CRC_FIX_CLK (0x00 << 0) #define CRC_VAR_CLK0 (0x01 << 0) #define CRC_VAR_CLK1 (0x02 << 0) #define SD30_FIX_CLK (0x00 << 2) #define SD30_VAR_CLK0 (0x01 << 2) #define SD30_VAR_CLK1 (0x02 << 2) #define SAMPLE_FIX_CLK (0x00 << 4) #define SAMPLE_VAR_CLK0 (0x01 << 4) #define SAMPLE_VAR_CLK1 (0x02 << 4) /* SD_SAMPLE_POINT_CTL */ #define DDR_FIX_RX_DAT 0x00 #define DDR_VAR_RX_DAT 0x80 #define DDR_FIX_RX_DAT_EDGE 0x00 #define DDR_FIX_RX_DAT_14_DELAY 0x40 #define DDR_FIX_RX_CMD 0x00 #define DDR_VAR_RX_CMD 0x20 #define DDR_FIX_RX_CMD_POS_EDGE 0x00 #define DDR_FIX_RX_CMD_14_DELAY 0x10 #define SD20_RX_POS_EDGE 0x00 #define SD20_RX_14_DELAY 0x08 #define SD20_RX_SEL_MASK 0x08 /* SD_PUSH_POINT_CTL */ #define DDR_FIX_TX_CMD_DAT 0x00 #define DDR_VAR_TX_CMD_DAT 0x80 #define DDR_FIX_TX_DAT_14_TSU 0x00 #define DDR_FIX_TX_DAT_12_TSU 0x40 #define DDR_FIX_TX_CMD_NEG_EDGE 0x00 #define DDR_FIX_TX_CMD_14_AHEAD 0x20 #define SD20_TX_NEG_EDGE 0x00 #define SD20_TX_14_AHEAD 0x10 #define SD20_TX_SEL_MASK 0x10 #define DDR_VAR_SDCLK_POL_SWAP 0x01 /* MS_CFG */ #define SAMPLE_TIME_RISING 0x00 #define SAMPLE_TIME_FALLING 0x80 #define PUSH_TIME_DEFAULT 0x00 #define PUSH_TIME_ODD 0x40 #define NO_EXTEND_TOGGLE 0x00 #define EXTEND_TOGGLE_CHK 0x20 #define MS_BUS_WIDTH_1 0x00 #define MS_BUS_WIDTH_4 0x10 #define MS_BUS_WIDTH_8 0x18 #define MS_2K_SECTOR_MODE 0x04 #define MS_512_SECTOR_MODE 0x00 #define MS_TOGGLE_TIMEOUT_EN 0x00 #define MS_TOGGLE_TIMEOUT_DISEN 0x01 #define MS_NO_CHECK_INT 0x02 /* MS_TRANS_CFG */ #define WAIT_INT 0x80 #define NO_WAIT_INT 0x00 #define NO_AUTO_READ_INT_REG 0x00 #define AUTO_READ_INT_REG 0x40 #define MS_CRC16_ERR 0x20 #define MS_RDY_TIMEOUT 0x10 #define MS_INT_CMDNK 0x08 #define MS_INT_BREQ 0x04 #define MS_INT_ERR 0x02 #define MS_INT_CED 0x01 /* MS_TRANSFER */ #define MS_TRANSFER_START 0x80 #define MS_TRANSFER_END 0x40 #define MS_TRANSFER_ERR 0x20 #define MS_BS_STATE 0x10 #define MS_TM_READ_BYTES 0x00 #define MS_TM_NORMAL_READ 0x01 #define MS_TM_WRITE_BYTES 0x04 #define MS_TM_NORMAL_WRITE 0x05 #define MS_TM_AUTO_READ 0x08 #define MS_TM_AUTO_WRITE 0x0C #define MS_TM_SET_CMD 0x06 #define MS_TM_COPY_PAGE 0x07 #define MS_TM_MULTI_READ 0x02 #define MS_TM_MULTI_WRITE 0x03 /* MC_FIFO_CTL */ #define FIFO_FLUSH 0x01 /* MC_DMA_RST */ #define DMA_RESET 0x01 /* MC_DMA_CTL */ #define DMA_TC_EQ_0 0x80 #define DMA_DIR_TO_CARD 0x00 #define DMA_DIR_FROM_CARD 0x02 #define DMA_EN 0x01 #define DMA_128 (0 << 2) #define DMA_256 (1 << 2) #define DMA_512 (2 << 2) #define DMA_1024 (3 << 2) #define DMA_PACK_SIZE_MASK 0x0C /* CARD_INT_PEND */ #define XD_INT 0x10 #define MS_INT 0x08 #define SD_INT 0x04 /* LED operations*/ static inline int rtsx_usb_turn_on_led(struct rtsx_ucr *ucr) { return rtsx_usb_ep0_write_register(ucr, CARD_GPIO, 0x03, 0x02); } static inline int rtsx_usb_turn_off_led(struct rtsx_ucr *ucr) { return rtsx_usb_ep0_write_register(ucr, CARD_GPIO, 0x03, 0x03); } /* HW error clearing */ static inline void rtsx_usb_clear_fsm_err(struct rtsx_ucr *ucr) { rtsx_usb_ep0_write_register(ucr, SFSM_ED, 0xf8, 0xf8); } static inline void rtsx_usb_clear_dma_err(struct rtsx_ucr *ucr) { rtsx_usb_ep0_write_register(ucr, MC_FIFO_CTL, FIFO_FLUSH, FIFO_FLUSH); rtsx_usb_ep0_write_register(ucr, MC_DMA_RST, DMA_RESET, DMA_RESET); } #endif /* __RTS51139_H */