/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2011-06-09     weety      first version
 */

#ifndef __AT91_MCI_H__
#define __AT91_MCI_H__

#define AT91_MCI_CR     0x00        /* Control Register */
#define     AT91_MCI_MCIEN      (1 <<  0)   /* Multi-Media Interface Enable */
#define     AT91_MCI_MCIDIS     (1 <<  1)   /* Multi-Media Interface Disable */
#define     AT91_MCI_PWSEN      (1 <<  2)   /* Power Save Mode Enable */
#define     AT91_MCI_PWSDIS     (1 <<  3)   /* Power Save Mode Disable */
#define     AT91_MCI_SWRST      (1 <<  7)   /* Software Reset */

#define AT91_MCI_MR     0x04        /* Mode Register */
#define     AT91_MCI_CLKDIV     (0xff  <<  0)   /* Clock Divider */
#define     AT91_MCI_PWSDIV     (7     <<  8)   /* Power Saving Divider */
#define     AT91_MCI_RDPROOF    (1     << 11)   /* Read Proof Enable [SAM926[03] only] */
#define     AT91_MCI_WRPROOF    (1     << 12)   /* Write Proof Enable [SAM926[03] only] */
#define     AT91_MCI_PDCFBYTE   (1     << 13)   /* PDC Force Byte Transfer [SAM926[03] only] */
#define     AT91_MCI_PDCPADV    (1     << 14)   /* PDC Padding Value */
#define     AT91_MCI_PDCMODE    (1     << 15)   /* PDC-orientated Mode */
#define     AT91_MCI_BLKLEN     (0xfff << 18)   /* Data Block Length */

#define AT91_MCI_DTOR       0x08        /* Data Timeout Register */
#define     AT91_MCI_DTOCYC     (0xf << 0)  /* Data Timeout Cycle Number */
#define     AT91_MCI_DTOMUL     (7   << 4)  /* Data Timeout Multiplier */
#define     AT91_MCI_DTOMUL_1       (0 <<  4)
#define     AT91_MCI_DTOMUL_16      (1 <<  4)
#define     AT91_MCI_DTOMUL_128     (2 <<  4)
#define     AT91_MCI_DTOMUL_256     (3 <<  4)
#define     AT91_MCI_DTOMUL_1K      (4 <<  4)
#define     AT91_MCI_DTOMUL_4K      (5 <<  4)
#define     AT91_MCI_DTOMUL_64K     (6 <<  4)
#define     AT91_MCI_DTOMUL_1M      (7 <<  4)

#define AT91_MCI_SDCR       0x0c        /* SD Card Register */
#define     AT91_MCI_SDCSEL     (3 << 0)    /* SD Card Selector */
#define     AT91_MCI_SDCBUS     (1 << 7)    /* 1-bit or 4-bit bus */

#define AT91_MCI_ARGR       0x10        /* Argument Register */

#define AT91_MCI_CMDR       0x14        /* Command Register */
#define     AT91_MCI_CMDNB      (0x3f << 0) /* Command Number */
#define     AT91_MCI_RSPTYP     (3    << 6) /* Response Type */
#define         AT91_MCI_RSPTYP_NONE    (0 <<  6)
#define         AT91_MCI_RSPTYP_48  (1 <<  6)
#define         AT91_MCI_RSPTYP_136 (2 <<  6)
#define     AT91_MCI_SPCMD      (7    << 8) /* Special Command */
#define         AT91_MCI_SPCMD_NONE (0 <<  8)
#define         AT91_MCI_SPCMD_INIT (1 <<  8)
#define         AT91_MCI_SPCMD_SYNC (2 <<  8)
#define         AT91_MCI_SPCMD_ICMD (4 <<  8)
#define         AT91_MCI_SPCMD_IRESP    (5 <<  8)
#define     AT91_MCI_OPDCMD     (1 << 11)   /* Open Drain Command */
#define     AT91_MCI_MAXLAT     (1 << 12)   /* Max Latency for Command to Response */
#define     AT91_MCI_TRCMD      (3 << 16)   /* Transfer Command */
#define         AT91_MCI_TRCMD_NONE (0 << 16)
#define         AT91_MCI_TRCMD_START    (1 << 16)
#define         AT91_MCI_TRCMD_STOP (2 << 16)
#define     AT91_MCI_TRDIR      (1 << 18)   /* Transfer Direction */
#define     AT91_MCI_TRTYP      (3 << 19)   /* Transfer Type */
#define         AT91_MCI_TRTYP_BLOCK    (0 << 19)
#define         AT91_MCI_TRTYP_MULTIPLE (1 << 19)
#define         AT91_MCI_TRTYP_STREAM   (2 << 19)

#define AT91_MCI_BLKR       0x18        /* Block Register */
#define     AT91_MCI_BLKR_BCNT(n)   ((0xffff & (n)) << 0)   /* Block count */
#define     AT91_MCI_BLKR_BLKLEN(n) ((0xffff & (n)) << 16)  /* Block lenght */

#define AT91_MCI_RSPR(n)    (0x20 + ((n) * 4))  /* Response Registers 0-3 */
#define AT91_MCR_RDR        0x30        /* Receive Data Register */
#define AT91_MCR_TDR        0x34        /* Transmit Data Register */

#define AT91_MCI_SR     0x40        /* Status Register */
#define     AT91_MCI_CMDRDY     (1U <<  0)  /* Command Ready */
#define     AT91_MCI_RXRDY      (1U <<  1)  /* Receiver Ready */
#define     AT91_MCI_TXRDY      (1U <<  2)  /* Transmit Ready */
#define     AT91_MCI_BLKE       (1U <<  3)  /* Data Block Ended */
#define     AT91_MCI_DTIP       (1U <<  4)  /* Data Transfer in Progress */
#define     AT91_MCI_NOTBUSY    (1U <<  5)  /* Data Not Busy */
#define     AT91_MCI_ENDRX      (1U <<  6)  /* End of RX Buffer */
#define     AT91_MCI_ENDTX      (1U <<  7)  /* End fo TX Buffer */
#define     AT91_MCI_SDIOIRQA   (1U <<  8)  /* SDIO Interrupt for Slot A */
#define     AT91_MCI_SDIOIRQB   (1U <<  9)  /* SDIO Interrupt for Slot B */
#define     AT91_MCI_RXBUFF     (1U << 14)  /* RX Buffer Full */
#define     AT91_MCI_TXBUFE     (1U << 15)  /* TX Buffer Empty */
#define     AT91_MCI_RINDE      (1U << 16)  /* Response Index Error */
#define     AT91_MCI_RDIRE      (1U << 17)  /* Response Direction Error */
#define     AT91_MCI_RCRCE      (1U << 18)  /* Response CRC Error */
#define     AT91_MCI_RENDE      (1U << 19)  /* Response End Bit Error */
#define     AT91_MCI_RTOE       (1U << 20)  /* Reponse Time-out Error */
#define     AT91_MCI_DCRCE      (1U << 21)  /* Data CRC Error */
#define     AT91_MCI_DTOE       (1U << 22)  /* Data Time-out Error */
#define     AT91_MCI_OVRE       (1U << 30)  /* Overrun */
#define     AT91_MCI_UNRE       (1U << 31)  /* Underrun */

#define AT91_MCI_IER        0x44        /* Interrupt Enable Register */
#define AT91_MCI_IDR        0x48        /* Interrupt Disable Register */
#define AT91_MCI_IMR        0x4c        /* Interrupt Mask Register */

extern int at91_mci_init(void);

#endif