// SPDX-License-Identifier: GPL-2.0-or-later /* Copyright (c) 1999-2002 Merlin Hughes <[email protected]> Shamelessly ripped from i2c-piix4.c: Copyright (c) 1998, 1999 Frodo Looijaard <[email protected]> and Philip Edelbrock <[email protected]> */ /* 2002-04-08: Added nForce support. (Csaba Halasz) 2002-10-03: Fixed nForce PnP I/O port. (Michael Steil) 2002-12-28: Rewritten into something that resembles a Linux driver (hch) 2003-11-29: Added back AMD8111 removed by the previous rewrite. (Philip Pokorny) */ /* Supports AMD756, AMD766, AMD768, AMD8111 and nVidia nForce Note: we assume there can only be one device, with one SMBus interface. */ #include <linux/module.h> #include <linux/pci.h> #include <linux/kernel.h> #include <linux/delay.h> #include <linux/stddef.h> #include <linux/ioport.h> #include <linux/i2c.h> #include <linux/acpi.h> #include <linux/io.h> /* AMD756 SMBus address offsets */ #define SMB_ADDR_OFFSET … #define SMB_IOSIZE … #define SMB_GLOBAL_STATUS … #define SMB_GLOBAL_ENABLE … #define SMB_HOST_ADDRESS … #define SMB_HOST_DATA … #define SMB_HOST_COMMAND … #define SMB_HOST_BLOCK_DATA … #define SMB_HAS_DATA … #define SMB_HAS_DEVICE_ADDRESS … #define SMB_HAS_HOST_ADDRESS … #define SMB_SNOOP_ADDRESS … /* PCI Address Constants */ /* address of I/O space */ #define SMBBA … #define SMBBANFORCE … /* general configuration */ #define SMBGCFG … /* silicon revision code */ #define SMBREV … /* Other settings */ #define MAX_TIMEOUT … /* AMD756 constants */ #define AMD756_QUICK … #define AMD756_BYTE … #define AMD756_BYTE_DATA … #define AMD756_WORD_DATA … #define AMD756_PROCESS_CALL … #define AMD756_BLOCK_DATA … static struct pci_driver amd756_driver; static unsigned short amd756_ioport; /* SMBUS event = I/O 28-29 bit 11 see E0 for the status bits and enabled in E2 */ #define GS_ABRT_STS … #define GS_COL_STS … #define GS_PRERR_STS … #define GS_HST_STS … #define GS_HCYC_STS … #define GS_TO_STS … #define GS_SMB_STS … #define GS_CLEAR_STS … #define GE_CYC_TYPE_MASK … #define GE_HOST_STC … #define GE_ABORT … static int amd756_transaction(struct i2c_adapter *adap) { … } /* Return negative errno on error. */ static s32 amd756_access(struct i2c_adapter * adap, u16 addr, unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data * data) { … } static u32 amd756_func(struct i2c_adapter *adapter) { … } static const struct i2c_algorithm smbus_algorithm = …; struct i2c_adapter amd756_smbus = …; enum chiptype { … }; static const char* chipname[] = …; static const struct pci_device_id amd756_ids[] = …; MODULE_DEVICE_TABLE (pci, amd756_ids); static int amd756_probe(struct pci_dev *pdev, const struct pci_device_id *id) { … } static void amd756_remove(struct pci_dev *dev) { … } static struct pci_driver amd756_driver = …; module_pci_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; EXPORT_SYMBOL(…);
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