linux/drivers/platform/cznic/turris-omnia-mcu-base.c

// SPDX-License-Identifier: GPL-2.0
/*
 * CZ.NIC's Turris Omnia MCU driver
 *
 * 2024 by Marek Behún <[email protected]>
 */

#include <linux/array_size.h>
#include <linux/bits.h>
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/hex.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/sysfs.h>
#include <linux/types.h>

#include <linux/turris-omnia-mcu-interface.h>
#include "turris-omnia-mcu.h"

#define OMNIA_FW_VERSION_LEN …
#define OMNIA_FW_VERSION_HEX_LEN …
#define OMNIA_BOARD_INFO_LEN …

int omnia_cmd_write_read(const struct i2c_client *client,
			 void *cmd, unsigned int cmd_len,
			 void *reply, unsigned int reply_len)
{ … }

static int omnia_get_version_hash(struct omnia_mcu *mcu, bool bootloader,
				  char version[static OMNIA_FW_VERSION_HEX_LEN])
{ … }

static ssize_t fw_version_hash_show(struct device *dev, char *buf,
				    bool bootloader)
{ … }

static ssize_t fw_version_hash_application_show(struct device *dev,
						struct device_attribute *a,
						char *buf)
{ … }
static DEVICE_ATTR_RO(fw_version_hash_application);

static ssize_t fw_version_hash_bootloader_show(struct device *dev,
					       struct device_attribute *a,
					       char *buf)
{ … }
static DEVICE_ATTR_RO(fw_version_hash_bootloader);

static ssize_t fw_features_show(struct device *dev, struct device_attribute *a,
				char *buf)
{ … }
static DEVICE_ATTR_RO(fw_features);

static ssize_t mcu_type_show(struct device *dev, struct device_attribute *a,
			     char *buf)
{ … }
static DEVICE_ATTR_RO(mcu_type);

static ssize_t reset_selector_show(struct device *dev,
				   struct device_attribute *a, char *buf)
{ … }
static DEVICE_ATTR_RO(reset_selector);

static ssize_t serial_number_show(struct device *dev,
				  struct device_attribute *a, char *buf)
{ … }
static DEVICE_ATTR_RO(serial_number);

static ssize_t first_mac_address_show(struct device *dev,
				      struct device_attribute *a, char *buf)
{ … }
static DEVICE_ATTR_RO(first_mac_address);

static ssize_t board_revision_show(struct device *dev,
				   struct device_attribute *a, char *buf)
{ … }
static DEVICE_ATTR_RO(board_revision);

static struct attribute *omnia_mcu_base_attrs[] = …;

static umode_t omnia_mcu_base_attrs_visible(struct kobject *kobj,
					    struct attribute *a, int n)
{ … }

static const struct attribute_group omnia_mcu_base_group = …;

static const struct attribute_group *omnia_mcu_groups[] = …;

static void omnia_mcu_print_version_hash(struct omnia_mcu *mcu, bool bootloader)
{ … }

static const char *omnia_status_to_mcu_type(u16 status)
{ … }

static void omnia_info_missing_feature(struct device *dev, const char *feature)
{ … }

static int omnia_mcu_read_features(struct omnia_mcu *mcu)
{ … }

static int omnia_mcu_read_board_info(struct omnia_mcu *mcu)
{ … }

static int omnia_mcu_probe(struct i2c_client *client)
{ … }

static const struct of_device_id of_omnia_mcu_match[] = …;

static struct i2c_driver omnia_mcu_driver = …;
module_i2c_driver(…) …;

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