linux/drivers/char/tpm/tpm_nsc.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2004 IBM Corporation
 *
 * Authors:
 * Leendert van Doorn <[email protected]>
 * Dave Safford <[email protected]>
 * Reiner Sailer <[email protected]>
 * Kylene Hall <[email protected]>
 *
 * Maintained by: <[email protected]>
 *
 * Device driver for TCG/TCPA TPM (trusted platform module).
 * Specifications at www.trustedcomputinggroup.org	 
 */

#include <linux/platform_device.h>
#include <linux/slab.h>
#include "tpm.h"

/* National definitions */
enum tpm_nsc_addr{ … };

enum tpm_nsc_index { … };

enum tpm_nsc_status_loc { … };

/* status bits */
enum tpm_nsc_status { … };

/* command bits */
enum tpm_nsc_cmd_mode { … };

struct tpm_nsc_priv { … };

/*
 * Wait for a certain status to appear
 */
static int wait_for_stat(struct tpm_chip *chip, u8 mask, u8 val, u8 * data)
{ … }

static int nsc_wait_for_ready(struct tpm_chip *chip)
{ … }


static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
{ … }

static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count)
{ … }

static void tpm_nsc_cancel(struct tpm_chip *chip)
{ … }

static u8 tpm_nsc_status(struct tpm_chip *chip)
{ … }

static bool tpm_nsc_req_canceled(struct tpm_chip *chip, u8 status)
{ … }

static const struct tpm_class_ops tpm_nsc = …;

static struct platform_device *pdev = …;

static void tpm_nsc_remove(struct device *dev)
{ … }

static SIMPLE_DEV_PM_OPS(tpm_nsc_pm, tpm_pm_suspend, tpm_pm_resume);

static struct platform_driver nsc_drv = …;

static inline int tpm_read_index(int base, int index)
{ … }

static inline void tpm_write_index(int base, int index, int value)
{ … }

static int __init init_nsc(void)
{ … }

static void __exit cleanup_nsc(void)
{ … }

module_init(…) …;
module_exit(cleanup_nsc);

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_VERSION(…) …;
MODULE_LICENSE(…) …;