// SPDX-License-Identifier: GPL-2.0-or-later /* * sdricoh_cs.c - driver for Ricoh Secure Digital Card Readers that can be * found on some Ricoh RL5c476 II cardbus bridge * * Copyright (C) 2006 - 2008 Sascha Sommer <[email protected]> */ /* #define DEBUG #define VERBOSE_DEBUG */ #include <linux/delay.h> #include <linux/highmem.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/ioport.h> #include <linux/iopoll.h> #include <linux/scatterlist.h> #include <pcmcia/cistpl.h> #include <pcmcia/ds.h> #include <linux/io.h> #include <linux/mmc/host.h> #include <linux/mmc/mmc.h> #define DRIVER_NAME … static unsigned int switchlocked; /* i/o region */ #define SDRICOH_PCI_REGION … #define SDRICOH_PCI_REGION_SIZE … /* registers */ #define R104_VERSION … #define R200_CMD … #define R204_CMD_ARG … #define R208_DATAIO … #define R20C_RESP … #define R21C_STATUS … #define R2E0_INIT … #define R2E4_STATUS_RESP … #define R2F0_RESET … #define R224_MODE … #define R226_BLOCKSIZE … #define R228_POWER … #define R230_DATA … /* flags for the R21C_STATUS register */ #define STATUS_CMD_FINISHED … #define STATUS_TRANSFER_FINISHED … #define STATUS_CARD_INSERTED … #define STATUS_CARD_LOCKED … #define STATUS_CMD_TIMEOUT … #define STATUS_READY_TO_READ … #define STATUS_READY_TO_WRITE … #define STATUS_BUSY … /* timeouts */ #define SDRICOH_CMD_TIMEOUT_US … #define SDRICOH_DATA_TIMEOUT_US … /* list of supported pcmcia devices */ static const struct pcmcia_device_id pcmcia_ids[] = …; MODULE_DEVICE_TABLE(pcmcia, pcmcia_ids); /* mmc privdata */ struct sdricoh_host { … }; /***************** register i/o helper functions *****************************/ static inline unsigned int sdricoh_readl(struct sdricoh_host *host, unsigned int reg) { … } static inline void sdricoh_writel(struct sdricoh_host *host, unsigned int reg, unsigned int value) { … } static inline void sdricoh_writew(struct sdricoh_host *host, unsigned int reg, unsigned short value) { … } static inline unsigned int sdricoh_readb(struct sdricoh_host *host, unsigned int reg) { … } static bool sdricoh_status_ok(struct sdricoh_host *host, unsigned int status, unsigned int wanted) { … } static int sdricoh_query_status(struct sdricoh_host *host, unsigned int wanted) { … } static int sdricoh_mmc_cmd(struct sdricoh_host *host, struct mmc_command *cmd) { … } static int sdricoh_reset(struct sdricoh_host *host) { … } static int sdricoh_blockio(struct sdricoh_host *host, int read, u8 *buf, int len) { … } static void sdricoh_request(struct mmc_host *mmc, struct mmc_request *mrq) { … } static void sdricoh_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) { … } static int sdricoh_get_ro(struct mmc_host *mmc) { … } static const struct mmc_host_ops sdricoh_ops = …; /* initialize the control and register it to the mmc framework */ static int sdricoh_init_mmc(struct pci_dev *pci_dev, struct pcmcia_device *pcmcia_dev) { … } /* search for supported mmc controllers */ static int sdricoh_pcmcia_probe(struct pcmcia_device *pcmcia_dev) { … } static void sdricoh_pcmcia_detach(struct pcmcia_device *link) { … } #ifdef CONFIG_PM static int sdricoh_pcmcia_suspend(struct pcmcia_device *link) { … } static int sdricoh_pcmcia_resume(struct pcmcia_device *link) { … } #else #define sdricoh_pcmcia_suspend … #define sdricoh_pcmcia_resume … #endif static struct pcmcia_driver sdricoh_driver = …; module_pcmcia_driver(…); module_param(switchlocked, uint, 0444); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_PARM_DESC(…) …;
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