linux/drivers/i2c/busses/i2c-amd8111.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * SMBus 2.0 driver for AMD-8111 IO-Hub.
 *
 * Copyright (c) 2002 Vojtech Pavlik
 */

#include <linux/module.h>
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/stddef.h>
#include <linux/ioport.h>
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/acpi.h>
#include <linux/slab.h>
#include <linux/io.h>

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

struct amd_smbus { … };

static struct pci_driver amd8111_driver;

/*
 * AMD PCI control registers definitions.
 */

#define AMD_PCI_MISC …

#define AMD_PCI_MISC_SCI …
#define AMD_PCI_MISC_INT …
#define AMD_PCI_MISC_SPEEDUP …

/*
 * ACPI 2.0 chapter 13 PCI interface definitions.
 */

#define AMD_EC_DATA …
#define AMD_EC_SC …
#define AMD_EC_CMD …
#define AMD_EC_ICR …

#define AMD_EC_SC_SMI …
#define AMD_EC_SC_SCI …
#define AMD_EC_SC_BURST …
#define AMD_EC_SC_CMD …
#define AMD_EC_SC_IBF …
#define AMD_EC_SC_OBF …

#define AMD_EC_CMD_RD …
#define AMD_EC_CMD_WR …
#define AMD_EC_CMD_BE …
#define AMD_EC_CMD_BD …
#define AMD_EC_CMD_QR …

/*
 * ACPI 2.0 chapter 13 access of registers of the EC
 */

static int amd_ec_wait_write(struct amd_smbus *smbus)
{ … }

static int amd_ec_wait_read(struct amd_smbus *smbus)
{ … }

static int amd_ec_read(struct amd_smbus *smbus, unsigned char address,
		unsigned char *data)
{ … }

static int amd_ec_write(struct amd_smbus *smbus, unsigned char address,
		unsigned char data)
{ … }

/*
 * ACPI 2.0 chapter 13 SMBus 2.0 EC register model
 */

#define AMD_SMB_PRTCL …
#define AMD_SMB_STS …
#define AMD_SMB_ADDR …
#define AMD_SMB_CMD …
#define AMD_SMB_DATA …
#define AMD_SMB_BCNT …
#define AMD_SMB_ALRM_A …
#define AMD_SMB_ALRM_D …

#define AMD_SMB_STS_DONE …
#define AMD_SMB_STS_ALRM …
#define AMD_SMB_STS_RES …
#define AMD_SMB_STS_STATUS …

#define AMD_SMB_STATUS_OK …
#define AMD_SMB_STATUS_FAIL …
#define AMD_SMB_STATUS_DNAK …
#define AMD_SMB_STATUS_DERR …
#define AMD_SMB_STATUS_CMD_DENY …
#define AMD_SMB_STATUS_UNKNOWN …
#define AMD_SMB_STATUS_ACC_DENY …
#define AMD_SMB_STATUS_TIMEOUT …
#define AMD_SMB_STATUS_NOTSUP …
#define AMD_SMB_STATUS_BUSY …
#define AMD_SMB_STATUS_PEC …

#define AMD_SMB_PRTCL_WRITE …
#define AMD_SMB_PRTCL_READ …
#define AMD_SMB_PRTCL_QUICK …
#define AMD_SMB_PRTCL_BYTE …
#define AMD_SMB_PRTCL_BYTE_DATA …
#define AMD_SMB_PRTCL_WORD_DATA …
#define AMD_SMB_PRTCL_BLOCK_DATA …
#define AMD_SMB_PRTCL_PROC_CALL …
#define AMD_SMB_PRTCL_BLOCK_PROC_CALL …
#define AMD_SMB_PRTCL_I2C_BLOCK_DATA …
#define AMD_SMB_PRTCL_PEC …


static s32 amd8111_access(struct i2c_adapter *adap, u16 addr,
		unsigned short flags, char read_write, u8 command, int size,
		union i2c_smbus_data *data)
{ … }


static u32 amd8111_func(struct i2c_adapter *adapter)
{ … }

static const struct i2c_algorithm smbus_algorithm = …;


static const struct pci_device_id amd8111_ids[] = …;

MODULE_DEVICE_TABLE (pci, amd8111_ids);

static int amd8111_probe(struct pci_dev *dev, const struct pci_device_id *id)
{ … }

static void amd8111_remove(struct pci_dev *dev)
{ … }

static struct pci_driver amd8111_driver = …;

module_pci_driver(…) …;