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path: root/drivers/i2c/busses/i2c-i801.c
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Diffstat (limited to 'drivers/i2c/busses/i2c-i801.c')
-rw-r--r--drivers/i2c/busses/i2c-i801.c613
1 files changed, 613 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
new file mode 100644
index 000000000000..6ec8b21965e2
--- /dev/null
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -0,0 +1,613 @@
+/*
+ i801.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+ Copyright (c) 1998 - 2002 Frodo Looijaard <frodol@dds.nl>,
+ Philip Edelbrock <phil@netroedge.com>, and Mark D. Studebaker
+ <mdsxyz123@yahoo.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ SUPPORTED DEVICES PCI ID
+ 82801AA 2413
+ 82801AB 2423
+ 82801BA 2443
+ 82801CA/CAM 2483
+ 82801DB 24C3 (HW PEC supported, 32 byte buffer not supported)
+ 82801EB 24D3 (HW PEC supported, 32 byte buffer not supported)
+ 6300ESB 25A4
+ ICH6 266A
+ ICH7 27DA
+ This driver supports several versions of Intel's I/O Controller Hubs (ICH).
+ For SMBus support, they are similar to the PIIX4 and are part
+ of Intel's '810' and other chipsets.
+ See the doc/busses/i2c-i801 file for details.
+ I2C Block Read and Process Call are not supported.
+*/
+
+/* Note: we assume there can only be one I801, with one SMBus interface */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/stddef.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <asm/io.h>
+
+#ifdef I2C_FUNC_SMBUS_BLOCK_DATA_PEC
+#define HAVE_PEC
+#endif
+
+/* I801 SMBus address offsets */
+#define SMBHSTSTS (0 + i801_smba)
+#define SMBHSTCNT (2 + i801_smba)
+#define SMBHSTCMD (3 + i801_smba)
+#define SMBHSTADD (4 + i801_smba)
+#define SMBHSTDAT0 (5 + i801_smba)
+#define SMBHSTDAT1 (6 + i801_smba)
+#define SMBBLKDAT (7 + i801_smba)
+#define SMBPEC (8 + i801_smba) /* ICH4 only */
+#define SMBAUXSTS (12 + i801_smba) /* ICH4 only */
+#define SMBAUXCTL (13 + i801_smba) /* ICH4 only */
+
+/* PCI Address Constants */
+#define SMBBA 0x020
+#define SMBHSTCFG 0x040
+#define SMBREV 0x008
+
+/* Host configuration bits for SMBHSTCFG */
+#define SMBHSTCFG_HST_EN 1
+#define SMBHSTCFG_SMB_SMI_EN 2
+#define SMBHSTCFG_I2C_EN 4
+
+/* Other settings */
+#define MAX_TIMEOUT 100
+#define ENABLE_INT9 0 /* set to 0x01 to enable - untested */
+
+/* I801 command constants */
+#define I801_QUICK 0x00
+#define I801_BYTE 0x04
+#define I801_BYTE_DATA 0x08
+#define I801_WORD_DATA 0x0C
+#define I801_PROC_CALL 0x10 /* later chips only, unimplemented */
+#define I801_BLOCK_DATA 0x14
+#define I801_I2C_BLOCK_DATA 0x18 /* unimplemented */
+#define I801_BLOCK_LAST 0x34
+#define I801_I2C_BLOCK_LAST 0x38 /* unimplemented */
+#define I801_START 0x40
+#define I801_PEC_EN 0x80 /* ICH4 only */
+
+/* insmod parameters */
+
+/* If force_addr is set to anything different from 0, we forcibly enable
+ the I801 at the given address. VERY DANGEROUS! */
+static u16 force_addr;
+module_param(force_addr, ushort, 0);
+MODULE_PARM_DESC(force_addr,
+ "Forcibly enable the I801 at the given address. "
+ "EXTREMELY DANGEROUS!");
+
+static int i801_transaction(void);
+static int i801_block_transaction(union i2c_smbus_data *data,
+ char read_write, int command);
+
+static unsigned short i801_smba;
+static struct pci_dev *I801_dev;
+static int isich4;
+
+static int i801_setup(struct pci_dev *dev)
+{
+ int error_return = 0;
+ unsigned char temp;
+
+ /* Note: we keep on searching until we have found 'function 3' */
+ if(PCI_FUNC(dev->devfn) != 3)
+ return -ENODEV;
+
+ I801_dev = dev;
+ if ((dev->device == PCI_DEVICE_ID_INTEL_82801DB_3) ||
+ (dev->device == PCI_DEVICE_ID_INTEL_82801EB_3) ||
+ (dev->device == PCI_DEVICE_ID_INTEL_ESB_4))
+ isich4 = 1;
+ else
+ isich4 = 0;
+
+ /* Determine the address of the SMBus areas */
+ if (force_addr) {
+ i801_smba = force_addr & 0xfff0;
+ } else {
+ pci_read_config_word(I801_dev, SMBBA, &i801_smba);
+ i801_smba &= 0xfff0;
+ if(i801_smba == 0) {
+ dev_err(&dev->dev, "SMB base address uninitialized"
+ "- upgrade BIOS or use force_addr=0xaddr\n");
+ return -ENODEV;
+ }
+ }
+
+ if (!request_region(i801_smba, (isich4 ? 16 : 8), "i801-smbus")) {
+ dev_err(&dev->dev, "I801_smb region 0x%x already in use!\n",
+ i801_smba);
+ error_return = -EBUSY;
+ goto END;
+ }
+
+ pci_read_config_byte(I801_dev, SMBHSTCFG, &temp);
+ temp &= ~SMBHSTCFG_I2C_EN; /* SMBus timing */
+ pci_write_config_byte(I801_dev, SMBHSTCFG, temp);
+
+ /* If force_addr is set, we program the new address here. Just to make
+ sure, we disable the device first. */
+ if (force_addr) {
+ pci_write_config_byte(I801_dev, SMBHSTCFG, temp & 0xfe);
+ pci_write_config_word(I801_dev, SMBBA, i801_smba);
+ pci_write_config_byte(I801_dev, SMBHSTCFG, temp | 0x01);
+ dev_warn(&dev->dev, "WARNING: I801 SMBus interface set to "
+ "new address %04x!\n", i801_smba);
+ } else if ((temp & 1) == 0) {
+ pci_write_config_byte(I801_dev, SMBHSTCFG, temp | 1);
+ dev_warn(&dev->dev, "enabling SMBus device\n");
+ }
+
+ if (temp & 0x02)
+ dev_dbg(&dev->dev, "I801 using Interrupt SMI# for SMBus.\n");
+ else
+ dev_dbg(&dev->dev, "I801 using PCI Interrupt for SMBus.\n");
+
+ pci_read_config_byte(I801_dev, SMBREV, &temp);
+ dev_dbg(&dev->dev, "SMBREV = 0x%X\n", temp);
+ dev_dbg(&dev->dev, "I801_smba = 0x%X\n", i801_smba);
+
+END:
+ return error_return;
+}
+
+static int i801_transaction(void)
+{
+ int temp;
+ int result = 0;
+ int timeout = 0;
+
+ dev_dbg(&I801_dev->dev, "Transaction (pre): CNT=%02x, CMD=%02x,"
+ "ADD=%02x, DAT0=%02x, DAT1=%02x\n", inb_p(SMBHSTCNT),
+ inb_p(SMBHSTCMD), inb_p(SMBHSTADD), inb_p(SMBHSTDAT0),
+ inb_p(SMBHSTDAT1));
+
+ /* Make sure the SMBus host is ready to start transmitting */
+ /* 0x1f = Failed, Bus_Err, Dev_Err, Intr, Host_Busy */
+ if ((temp = (0x1f & inb_p(SMBHSTSTS))) != 0x00) {
+ dev_dbg(&I801_dev->dev, "SMBus busy (%02x). Resetting... \n",
+ temp);
+ outb_p(temp, SMBHSTSTS);
+ if ((temp = (0x1f & inb_p(SMBHSTSTS))) != 0x00) {
+ dev_dbg(&I801_dev->dev, "Failed! (%02x)\n", temp);
+ return -1;
+ } else {
+ dev_dbg(&I801_dev->dev, "Successfull!\n");
+ }
+ }
+
+ outb_p(inb(SMBHSTCNT) | I801_START, SMBHSTCNT);
+
+ /* We will always wait for a fraction of a second! */
+ do {
+ msleep(1);
+ temp = inb_p(SMBHSTSTS);
+ } while ((temp & 0x01) && (timeout++ < MAX_TIMEOUT));
+
+ /* If the SMBus is still busy, we give up */
+ if (timeout >= MAX_TIMEOUT) {
+ dev_dbg(&I801_dev->dev, "SMBus Timeout!\n");
+ result = -1;
+ }
+
+ if (temp & 0x10) {
+ result = -1;
+ dev_dbg(&I801_dev->dev, "Error: Failed bus transaction\n");
+ }
+
+ if (temp & 0x08) {
+ result = -1;
+ dev_err(&I801_dev->dev, "Bus collision! SMBus may be locked "
+ "until next hard reset. (sorry!)\n");
+ /* Clock stops and slave is stuck in mid-transmission */
+ }
+
+ if (temp & 0x04) {
+ result = -1;
+ dev_dbg(&I801_dev->dev, "Error: no response!\n");
+ }
+
+ if ((inb_p(SMBHSTSTS) & 0x1f) != 0x00)
+ outb_p(inb(SMBHSTSTS), SMBHSTSTS);
+
+ if ((temp = (0x1f & inb_p(SMBHSTSTS))) != 0x00) {
+ dev_dbg(&I801_dev->dev, "Failed reset at end of transaction"
+ "(%02x)\n", temp);
+ }
+ dev_dbg(&I801_dev->dev, "Transaction (post): CNT=%02x, CMD=%02x, "
+ "ADD=%02x, DAT0=%02x, DAT1=%02x\n", inb_p(SMBHSTCNT),
+ inb_p(SMBHSTCMD), inb_p(SMBHSTADD), inb_p(SMBHSTDAT0),
+ inb_p(SMBHSTDAT1));
+ return result;
+}
+
+/* All-inclusive block transaction function */
+static int i801_block_transaction(union i2c_smbus_data *data, char read_write,
+ int command)
+{
+ int i, len;
+ int smbcmd;
+ int temp;
+ int result = 0;
+ int timeout;
+ unsigned char hostc, errmask;
+
+ if (command == I2C_SMBUS_I2C_BLOCK_DATA) {
+ if (read_write == I2C_SMBUS_WRITE) {
+ /* set I2C_EN bit in configuration register */
+ pci_read_config_byte(I801_dev, SMBHSTCFG, &hostc);
+ pci_write_config_byte(I801_dev, SMBHSTCFG,
+ hostc | SMBHSTCFG_I2C_EN);
+ } else {
+ dev_err(&I801_dev->dev,
+ "I2C_SMBUS_I2C_BLOCK_READ not DB!\n");
+ return -1;
+ }
+ }
+
+ if (read_write == I2C_SMBUS_WRITE) {
+ len = data->block[0];
+ if (len < 1)
+ len = 1;
+ if (len > 32)
+ len = 32;
+ outb_p(len, SMBHSTDAT0);
+ outb_p(data->block[1], SMBBLKDAT);
+ } else {
+ len = 32; /* max for reads */
+ }
+
+ if(isich4 && command != I2C_SMBUS_I2C_BLOCK_DATA) {
+ /* set 32 byte buffer */
+ }
+
+ for (i = 1; i <= len; i++) {
+ if (i == len && read_write == I2C_SMBUS_READ)
+ smbcmd = I801_BLOCK_LAST;
+ else
+ smbcmd = I801_BLOCK_DATA;
+ outb_p(smbcmd | ENABLE_INT9, SMBHSTCNT);
+
+ dev_dbg(&I801_dev->dev, "Block (pre %d): CNT=%02x, CMD=%02x, "
+ "ADD=%02x, DAT0=%02x, BLKDAT=%02x\n", i,
+ inb_p(SMBHSTCNT), inb_p(SMBHSTCMD), inb_p(SMBHSTADD),
+ inb_p(SMBHSTDAT0), inb_p(SMBBLKDAT));
+
+ /* Make sure the SMBus host is ready to start transmitting */
+ temp = inb_p(SMBHSTSTS);
+ if (i == 1) {
+ /* Erronenous conditions before transaction:
+ * Byte_Done, Failed, Bus_Err, Dev_Err, Intr, Host_Busy */
+ errmask=0x9f;
+ } else {
+ /* Erronenous conditions during transaction:
+ * Failed, Bus_Err, Dev_Err, Intr */
+ errmask=0x1e;
+ }
+ if (temp & errmask) {
+ dev_dbg(&I801_dev->dev, "SMBus busy (%02x). "
+ "Resetting... \n", temp);
+ outb_p(temp, SMBHSTSTS);
+ if (((temp = inb_p(SMBHSTSTS)) & errmask) != 0x00) {
+ dev_err(&I801_dev->dev,
+ "Reset failed! (%02x)\n", temp);
+ result = -1;
+ goto END;
+ }
+ if (i != 1) {
+ /* if die in middle of block transaction, fail */
+ result = -1;
+ goto END;
+ }
+ }
+
+ if (i == 1)
+ outb_p(inb(SMBHSTCNT) | I801_START, SMBHSTCNT);
+
+ /* We will always wait for a fraction of a second! */
+ timeout = 0;
+ do {
+ temp = inb_p(SMBHSTSTS);
+ msleep(1);
+ }
+ while ((!(temp & 0x80))
+ && (timeout++ < MAX_TIMEOUT));
+
+ /* If the SMBus is still busy, we give up */
+ if (timeout >= MAX_TIMEOUT) {
+ result = -1;
+ dev_dbg(&I801_dev->dev, "SMBus Timeout!\n");
+ }
+
+ if (temp & 0x10) {
+ result = -1;
+ dev_dbg(&I801_dev->dev,
+ "Error: Failed bus transaction\n");
+ } else if (temp & 0x08) {
+ result = -1;
+ dev_err(&I801_dev->dev, "Bus collision!\n");
+ } else if (temp & 0x04) {
+ result = -1;
+ dev_dbg(&I801_dev->dev, "Error: no response!\n");
+ }
+
+ if (i == 1 && read_write == I2C_SMBUS_READ) {
+ len = inb_p(SMBHSTDAT0);
+ if (len < 1)
+ len = 1;
+ if (len > 32)
+ len = 32;
+ data->block[0] = len;
+ }
+
+ /* Retrieve/store value in SMBBLKDAT */
+ if (read_write == I2C_SMBUS_READ)
+ data->block[i] = inb_p(SMBBLKDAT);
+ if (read_write == I2C_SMBUS_WRITE && i+1 <= len)
+ outb_p(data->block[i+1], SMBBLKDAT);
+ if ((temp & 0x9e) != 0x00)
+ outb_p(temp, SMBHSTSTS); /* signals SMBBLKDAT ready */
+
+ if ((temp = (0x1e & inb_p(SMBHSTSTS))) != 0x00) {
+ dev_dbg(&I801_dev->dev,
+ "Bad status (%02x) at end of transaction\n",
+ temp);
+ }
+ dev_dbg(&I801_dev->dev, "Block (post %d): CNT=%02x, CMD=%02x, "
+ "ADD=%02x, DAT0=%02x, BLKDAT=%02x\n", i,
+ inb_p(SMBHSTCNT), inb_p(SMBHSTCMD), inb_p(SMBHSTADD),
+ inb_p(SMBHSTDAT0), inb_p(SMBBLKDAT));
+
+ if (result < 0)
+ goto END;
+ }
+
+#ifdef HAVE_PEC
+ if(isich4 && command == I2C_SMBUS_BLOCK_DATA_PEC) {
+ /* wait for INTR bit as advised by Intel */
+ timeout = 0;
+ do {
+ temp = inb_p(SMBHSTSTS);
+ msleep(1);
+ } while ((!(temp & 0x02))
+ && (timeout++ < MAX_TIMEOUT));
+
+ if (timeout >= MAX_TIMEOUT) {
+ dev_dbg(&I801_dev->dev, "PEC Timeout!\n");
+ }
+ outb_p(temp, SMBHSTSTS);
+ }
+#endif
+ result = 0;
+END:
+ if (command == I2C_SMBUS_I2C_BLOCK_DATA) {
+ /* restore saved configuration register value */
+ pci_write_config_byte(I801_dev, SMBHSTCFG, hostc);
+ }
+ return result;
+}
+
+/* Return -1 on error. */
+static s32 i801_access(struct i2c_adapter * adap, u16 addr,
+ unsigned short flags, char read_write, u8 command,
+ int size, union i2c_smbus_data * data)
+{
+ int hwpec = 0;
+ int block = 0;
+ int ret, xact = 0;
+
+#ifdef HAVE_PEC
+ if(isich4)
+ hwpec = (flags & I2C_CLIENT_PEC) != 0;
+#endif
+
+ switch (size) {
+ case I2C_SMBUS_QUICK:
+ outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
+ SMBHSTADD);
+ xact = I801_QUICK;
+ break;
+ case I2C_SMBUS_BYTE:
+ outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
+ SMBHSTADD);
+ if (read_write == I2C_SMBUS_WRITE)
+ outb_p(command, SMBHSTCMD);
+ xact = I801_BYTE;
+ break;
+ case I2C_SMBUS_BYTE_DATA:
+ outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
+ SMBHSTADD);
+ outb_p(command, SMBHSTCMD);
+ if (read_write == I2C_SMBUS_WRITE)
+ outb_p(data->byte, SMBHSTDAT0);
+ xact = I801_BYTE_DATA;
+ break;
+ case I2C_SMBUS_WORD_DATA:
+ outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
+ SMBHSTADD);
+ outb_p(command, SMBHSTCMD);
+ if (read_write == I2C_SMBUS_WRITE) {
+ outb_p(data->word & 0xff, SMBHSTDAT0);
+ outb_p((data->word & 0xff00) >> 8, SMBHSTDAT1);
+ }
+ xact = I801_WORD_DATA;
+ break;
+ case I2C_SMBUS_BLOCK_DATA:
+ case I2C_SMBUS_I2C_BLOCK_DATA:
+#ifdef HAVE_PEC
+ case I2C_SMBUS_BLOCK_DATA_PEC:
+ if(hwpec && size == I2C_SMBUS_BLOCK_DATA)
+ size = I2C_SMBUS_BLOCK_DATA_PEC;
+#endif
+ outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
+ SMBHSTADD);
+ outb_p(command, SMBHSTCMD);
+ block = 1;
+ break;
+ case I2C_SMBUS_PROC_CALL:
+ default:
+ dev_err(&I801_dev->dev, "Unsupported transaction %d\n", size);
+ return -1;
+ }
+
+#ifdef HAVE_PEC
+ if(isich4 && hwpec) {
+ if(size != I2C_SMBUS_QUICK &&
+ size != I2C_SMBUS_I2C_BLOCK_DATA)
+ outb_p(1, SMBAUXCTL); /* enable HW PEC */
+ }
+#endif
+ if(block)
+ ret = i801_block_transaction(data, read_write, size);
+ else {
+ outb_p(xact | ENABLE_INT9, SMBHSTCNT);
+ ret = i801_transaction();
+ }
+
+#ifdef HAVE_PEC
+ if(isich4 && hwpec) {
+ if(size != I2C_SMBUS_QUICK &&
+ size != I2C_SMBUS_I2C_BLOCK_DATA)
+ outb_p(0, SMBAUXCTL);
+ }
+#endif
+
+ if(block)
+ return ret;
+ if(ret)
+ return -1;
+ if ((read_write == I2C_SMBUS_WRITE) || (xact == I801_QUICK))
+ return 0;
+
+ switch (xact & 0x7f) {
+ case I801_BYTE: /* Result put in SMBHSTDAT0 */
+ case I801_BYTE_DATA:
+ data->byte = inb_p(SMBHSTDAT0);
+ break;
+ case I801_WORD_DATA:
+ data->word = inb_p(SMBHSTDAT0) + (inb_p(SMBHSTDAT1) << 8);
+ break;
+ }
+ return 0;
+}
+
+
+static u32 i801_func(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
+ I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
+ I2C_FUNC_SMBUS_BLOCK_DATA | I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
+#ifdef HAVE_PEC
+ | (isich4 ? I2C_FUNC_SMBUS_BLOCK_DATA_PEC |
+ I2C_FUNC_SMBUS_HWPEC_CALC
+ : 0)
+#endif
+ ;
+}
+
+static struct i2c_algorithm smbus_algorithm = {
+ .name = "Non-I2C SMBus adapter",
+ .id = I2C_ALGO_SMBUS,
+ .smbus_xfer = i801_access,
+ .functionality = i801_func,
+};
+
+static struct i2c_adapter i801_adapter = {
+ .owner = THIS_MODULE,
+ .class = I2C_CLASS_HWMON,
+ .algo = &smbus_algorithm,
+ .name = "unset",
+};
+
+static struct pci_device_id i801_ids[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_3) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_3) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_2) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_3) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_3) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_3) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_4) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_16) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_17) },
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE (pci, i801_ids);
+
+static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
+{
+
+ if (i801_setup(dev)) {
+ dev_warn(&dev->dev,
+ "I801 not detected, module not inserted.\n");
+ return -ENODEV;
+ }
+
+ /* set up the driverfs linkage to our parent device */
+ i801_adapter.dev.parent = &dev->dev;
+
+ snprintf(i801_adapter.name, I2C_NAME_SIZE,
+ "SMBus I801 adapter at %04x", i801_smba);
+ return i2c_add_adapter(&i801_adapter);
+}
+
+static void __devexit i801_remove(struct pci_dev *dev)
+{
+ i2c_del_adapter(&i801_adapter);
+ release_region(i801_smba, (isich4 ? 16 : 8));
+}
+
+static struct pci_driver i801_driver = {
+ .name = "i801_smbus",
+ .id_table = i801_ids,
+ .probe = i801_probe,
+ .remove = __devexit_p(i801_remove),
+};
+
+static int __init i2c_i801_init(void)
+{
+ return pci_register_driver(&i801_driver);
+}
+
+static void __exit i2c_i801_exit(void)
+{
+ pci_unregister_driver(&i801_driver);
+}
+
+MODULE_AUTHOR ("Frodo Looijaard <frodol@dds.nl>, "
+ "Philip Edelbrock <phil@netroedge.com>, "
+ "and Mark D. Studebaker <mdsxyz123@yahoo.com>");
+MODULE_DESCRIPTION("I801 SMBus driver");
+MODULE_LICENSE("GPL");
+
+module_init(i2c_i801_init);
+module_exit(i2c_i801_exit);
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-14 15:08:50 +0000