root/drivers/mmc/host/cb710-mmc.h
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *  cb710/cb710-mmc.h
 *
 *  Copyright by Michał Mirosław, 2008-2009
 */
#ifndef LINUX_CB710_MMC_H
#define LINUX_CB710_MMC_H

#include <linux/cb710.h>
#include <linux/workqueue.h>

/* per-MMC-reader structure */
struct cb710_mmc_reader {
        struct work_struct finish_req_bh_work;
        struct mmc_request *mrq;
        spinlock_t irq_lock;
        unsigned char last_power_mode;
};

/* some device struct walking */

static inline struct mmc_host *cb710_slot_to_mmc(struct cb710_slot *slot)
{
        return platform_get_drvdata(&slot->pdev);
}

static inline struct cb710_slot *cb710_mmc_to_slot(struct mmc_host *mmc)
{
        struct platform_device *pdev = to_platform_device(mmc_dev(mmc));
        return cb710_pdev_to_slot(pdev);
}

/* registers (this might be all wrong ;) */

#define CB710_MMC_DATA_PORT             0x00

#define CB710_MMC_CONFIG_PORT           0x04
#define CB710_MMC_CONFIG0_PORT          0x04
#define CB710_MMC_CONFIG1_PORT          0x05
#define   CB710_MMC_C1_4BIT_DATA_BUS            0x40
#define CB710_MMC_CONFIG2_PORT          0x06
#define   CB710_MMC_C2_READ_PIO_SIZE_MASK       0x0F    /* N-1 */
#define CB710_MMC_CONFIG3_PORT          0x07

#define CB710_MMC_CONFIGB_PORT          0x08

#define CB710_MMC_IRQ_ENABLE_PORT       0x0C
#define   CB710_MMC_IE_TEST_MASK                0x00BF
#define   CB710_MMC_IE_CARD_INSERTION_STATUS    0x1000
#define   CB710_MMC_IE_IRQ_ENABLE               0x8000
#define   CB710_MMC_IE_CISTATUS_MASK            \
                (CB710_MMC_IE_CARD_INSERTION_STATUS|CB710_MMC_IE_IRQ_ENABLE)

#define CB710_MMC_STATUS_PORT           0x10
#define   CB710_MMC_STATUS_ERROR_EVENTS         0x60FF
#define CB710_MMC_STATUS0_PORT          0x10
#define   CB710_MMC_S0_FIFO_UNDERFLOW           0x40
#define CB710_MMC_STATUS1_PORT          0x11
#define   CB710_MMC_S1_COMMAND_SENT             0x01
#define   CB710_MMC_S1_DATA_TRANSFER_DONE       0x02
#define   CB710_MMC_S1_PIO_TRANSFER_DONE        0x04
#define   CB710_MMC_S1_CARD_CHANGED             0x10
#define   CB710_MMC_S1_RESET                    0x20
#define CB710_MMC_STATUS2_PORT          0x12
#define   CB710_MMC_S2_FIFO_READY               0x01
#define   CB710_MMC_S2_FIFO_EMPTY               0x02
#define   CB710_MMC_S2_BUSY_10                  0x10
#define   CB710_MMC_S2_BUSY_20                  0x20
#define CB710_MMC_STATUS3_PORT          0x13
#define   CB710_MMC_S3_CARD_DETECTED            0x02
#define   CB710_MMC_S3_WRITE_PROTECTED          0x04

#define CB710_MMC_CMD_TYPE_PORT         0x14
#define   CB710_MMC_RSP_TYPE_MASK               0x0007
#define     CB710_MMC_RSP_R1                    (0)
#define     CB710_MMC_RSP_136                   (5)
#define     CB710_MMC_RSP_NO_CRC                (2)
#define   CB710_MMC_RSP_PRESENT_MASK            0x0018
#define     CB710_MMC_RSP_NONE                  (0 << 3)
#define     CB710_MMC_RSP_PRESENT               (1 << 3)
#define     CB710_MMC_RSP_PRESENT_X             (2 << 3)
#define   CB710_MMC_CMD_TYPE_MASK               0x0060
#define     CB710_MMC_CMD_BC                    (0 << 5)
#define     CB710_MMC_CMD_BCR                   (1 << 5)
#define     CB710_MMC_CMD_AC                    (2 << 5)
#define     CB710_MMC_CMD_ADTC                  (3 << 5)
#define   CB710_MMC_DATA_READ                   0x0080
#define   CB710_MMC_CMD_CODE_MASK               0x3F00
#define   CB710_MMC_CMD_CODE_SHIFT              8
#define   CB710_MMC_IS_APP_CMD                  0x4000
#define   CB710_MMC_RSP_BUSY                    0x8000

#define CB710_MMC_CMD_PARAM_PORT        0x18
#define CB710_MMC_TRANSFER_SIZE_PORT    0x1C
#define CB710_MMC_RESPONSE0_PORT        0x20
#define CB710_MMC_RESPONSE1_PORT        0x24
#define CB710_MMC_RESPONSE2_PORT        0x28
#define CB710_MMC_RESPONSE3_PORT        0x2C

#endif /* LINUX_CB710_MMC_H */