// SPDX-License-Identifier: GPL-2.0-only /* * tifm_sd.c - TI FlashMedia driver * * Copyright (C) 2006 Alex Dubov <[email protected]> * * Special thanks to Brad Campbell for extensive testing of this driver. */ #include <linux/tifm.h> #include <linux/mmc/host.h> #include <linux/highmem.h> #include <linux/scatterlist.h> #include <linux/module.h> #include <linux/workqueue.h> #include <asm/io.h> #define DRIVER_NAME … #define DRIVER_VERSION … static bool no_dma = …; static bool fixed_timeout = …; module_param(no_dma, bool, 0644); module_param(fixed_timeout, bool, 0644); /* Constants here are mostly from OMAP5912 datasheet */ #define TIFM_MMCSD_RESET … #define TIFM_MMCSD_CLKMASK … #define TIFM_MMCSD_POWER … #define TIFM_MMCSD_4BBUS … #define TIFM_MMCSD_RXDE … #define TIFM_MMCSD_TXDE … #define TIFM_MMCSD_BUFINT … #define TIFM_MMCSD_DPE … #define TIFM_MMCSD_INAB … #define TIFM_MMCSD_READ … #define TIFM_MMCSD_ERRMASK … #define TIFM_MMCSD_EOC … #define TIFM_MMCSD_CD … #define TIFM_MMCSD_CB … #define TIFM_MMCSD_BRS … #define TIFM_MMCSD_EOFB … #define TIFM_MMCSD_DTO … #define TIFM_MMCSD_DCRC … #define TIFM_MMCSD_CTO … #define TIFM_MMCSD_CCRC … #define TIFM_MMCSD_AF … #define TIFM_MMCSD_AE … #define TIFM_MMCSD_OCRB … #define TIFM_MMCSD_CIRQ … #define TIFM_MMCSD_CERR … #define TIFM_MMCSD_ODTO … #define TIFM_MMCSD_CARD_RO … #define TIFM_MMCSD_FIFO_SIZE … #define TIFM_MMCSD_RSP_R0 … #define TIFM_MMCSD_RSP_R1 … #define TIFM_MMCSD_RSP_R2 … #define TIFM_MMCSD_RSP_R3 … #define TIFM_MMCSD_RSP_R4 … #define TIFM_MMCSD_RSP_R5 … #define TIFM_MMCSD_RSP_R6 … #define TIFM_MMCSD_RSP_BUSY … #define TIFM_MMCSD_CMD_BC … #define TIFM_MMCSD_CMD_BCR … #define TIFM_MMCSD_CMD_AC … #define TIFM_MMCSD_CMD_ADTC … #define TIFM_MMCSD_MAX_BLOCK_SIZE … #define TIFM_MMCSD_REQ_TIMEOUT_MS … enum { … }; struct tifm_sd { … }; /* for some reason, host won't respond correctly to readw/writew */ static void tifm_sd_read_fifo(struct tifm_sd *host, struct page *pg, unsigned int off, unsigned int cnt) { … } static void tifm_sd_write_fifo(struct tifm_sd *host, struct page *pg, unsigned int off, unsigned int cnt) { … } static void tifm_sd_transfer_data(struct tifm_sd *host) { … } static void tifm_sd_copy_page(struct page *dst, unsigned int dst_off, struct page *src, unsigned int src_off, unsigned int count) { … } static void tifm_sd_bounce_block(struct tifm_sd *host, struct mmc_data *r_data) { … } static int tifm_sd_set_dma_data(struct tifm_sd *host, struct mmc_data *r_data) { … } static unsigned int tifm_sd_op_flags(struct mmc_command *cmd) { … } static void tifm_sd_exec(struct tifm_sd *host, struct mmc_command *cmd) { … } static void tifm_sd_fetch_resp(struct mmc_command *cmd, struct tifm_dev *sock) { … } static void tifm_sd_check_status(struct tifm_sd *host) { … } /* Called from interrupt handler */ static void tifm_sd_data_event(struct tifm_dev *sock) { … } /* Called from interrupt handler */ static void tifm_sd_card_event(struct tifm_dev *sock) { … } static void tifm_sd_set_data_timeout(struct tifm_sd *host, struct mmc_data *data) { … } static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq) { … } static void tifm_sd_end_cmd(struct work_struct *t) { … } static void tifm_sd_abort(struct timer_list *t) { … } static void tifm_sd_ios(struct mmc_host *mmc, struct mmc_ios *ios) { … } static int tifm_sd_ro(struct mmc_host *mmc) { … } static const struct mmc_host_ops tifm_sd_ops = …; static int tifm_sd_initialize_host(struct tifm_sd *host) { … } static int tifm_sd_probe(struct tifm_dev *sock) { … } static void tifm_sd_remove(struct tifm_dev *sock) { … } #ifdef CONFIG_PM static int tifm_sd_suspend(struct tifm_dev *sock, pm_message_t state) { … } static int tifm_sd_resume(struct tifm_dev *sock) { … } #else #define tifm_sd_suspend … #define tifm_sd_resume … #endif /* CONFIG_PM */ static struct tifm_device_id tifm_sd_id_tbl[] = …; static struct tifm_driver tifm_sd_driver = …; static int __init tifm_sd_init(void) { … } static void __exit tifm_sd_exit(void) { … } MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_DEVICE_TABLE(tifm, tifm_sd_id_tbl); MODULE_VERSION(…); module_init(…) …; module_exit(tifm_sd_exit);
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