2019-06-01 08:08:42 +00:00
|
|
|
// SPDX-License-Identifier: GPL-2.0-only
|
2021-05-20 19:00:52 +00:00
|
|
|
/*
|
2005-04-16 22:20:36 +00:00
|
|
|
* i2c-ali1563.c - i2c driver for the ALi 1563 Southbridge
|
|
|
|
*
|
|
|
|
* Copyright (C) 2004 Patrick Mochel
|
2006-12-12 17:18:30 +00:00
|
|
|
* 2005 Rudolf Marek <r.marek@assembler.cz>
|
2005-04-16 22:20:36 +00:00
|
|
|
*
|
|
|
|
* The 1563 southbridge is deceptively similar to the 1533, with a
|
|
|
|
* few notable exceptions. One of those happens to be the fact they
|
|
|
|
* upgraded the i2c core to be 2.0 compliant, and happens to be almost
|
|
|
|
* identical to the i2c controller found in the Intel 801 south
|
|
|
|
* bridges.
|
|
|
|
*
|
|
|
|
* This driver is based on a mix of the 15x3, 1535, and i801 drivers,
|
|
|
|
* with a little help from the ALi 1563 spec.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/delay.h>
|
|
|
|
#include <linux/i2c.h>
|
|
|
|
#include <linux/pci.h>
|
2008-07-14 20:38:33 +00:00
|
|
|
#include <linux/acpi.h>
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
#define ALI1563_MAX_TIMEOUT 500
|
|
|
|
#define ALI1563_SMBBA 0x80
|
|
|
|
#define ALI1563_SMB_IOEN 1
|
|
|
|
#define ALI1563_SMB_HOSTEN 2
|
|
|
|
#define ALI1563_SMB_IOSIZE 16
|
|
|
|
|
|
|
|
#define SMB_HST_STS (ali1563_smba + 0)
|
|
|
|
#define SMB_HST_CNTL1 (ali1563_smba + 1)
|
|
|
|
#define SMB_HST_CNTL2 (ali1563_smba + 2)
|
|
|
|
#define SMB_HST_CMD (ali1563_smba + 3)
|
|
|
|
#define SMB_HST_ADD (ali1563_smba + 4)
|
|
|
|
#define SMB_HST_DAT0 (ali1563_smba + 5)
|
|
|
|
#define SMB_HST_DAT1 (ali1563_smba + 6)
|
|
|
|
#define SMB_BLK_DAT (ali1563_smba + 7)
|
|
|
|
|
|
|
|
#define HST_STS_BUSY 0x01
|
|
|
|
#define HST_STS_INTR 0x02
|
|
|
|
#define HST_STS_DEVERR 0x04
|
|
|
|
#define HST_STS_BUSERR 0x08
|
|
|
|
#define HST_STS_FAIL 0x10
|
|
|
|
#define HST_STS_DONE 0x80
|
|
|
|
#define HST_STS_BAD 0x1c
|
|
|
|
|
|
|
|
|
|
|
|
#define HST_CNTL1_TIMEOUT 0x80
|
|
|
|
#define HST_CNTL1_LAST 0x40
|
|
|
|
|
|
|
|
#define HST_CNTL2_KILL 0x04
|
|
|
|
#define HST_CNTL2_START 0x40
|
|
|
|
#define HST_CNTL2_QUICK 0x00
|
|
|
|
#define HST_CNTL2_BYTE 0x01
|
|
|
|
#define HST_CNTL2_BYTE_DATA 0x02
|
|
|
|
#define HST_CNTL2_WORD_DATA 0x03
|
|
|
|
#define HST_CNTL2_BLOCK 0x05
|
|
|
|
|
|
|
|
|
2005-04-21 09:07:56 +00:00
|
|
|
#define HST_CNTL2_SIZEMASK 0x38
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2005-09-25 14:37:04 +00:00
|
|
|
static struct pci_driver ali1563_pci_driver;
|
2005-04-16 22:20:36 +00:00
|
|
|
static unsigned short ali1563_smba;
|
|
|
|
|
2014-04-11 11:44:44 +00:00
|
|
|
static int ali1563_transaction(struct i2c_adapter *a, int size)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
|
|
|
u32 data;
|
|
|
|
int timeout;
|
2008-07-14 20:38:25 +00:00
|
|
|
int status = -EIO;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
dev_dbg(&a->dev, "Transaction (pre): STS=%02x, CNTL1=%02x, "
|
|
|
|
"CNTL2=%02x, CMD=%02x, ADD=%02x, DAT0=%02x, DAT1=%02x\n",
|
|
|
|
inb_p(SMB_HST_STS), inb_p(SMB_HST_CNTL1), inb_p(SMB_HST_CNTL2),
|
|
|
|
inb_p(SMB_HST_CMD), inb_p(SMB_HST_ADD), inb_p(SMB_HST_DAT0),
|
|
|
|
inb_p(SMB_HST_DAT1));
|
|
|
|
|
|
|
|
data = inb_p(SMB_HST_STS);
|
|
|
|
if (data & HST_STS_BAD) {
|
2005-04-21 09:07:56 +00:00
|
|
|
dev_err(&a->dev, "ali1563: Trying to reset busy device\n");
|
2014-04-11 11:44:44 +00:00
|
|
|
outb_p(data | HST_STS_BAD, SMB_HST_STS);
|
2005-04-16 22:20:36 +00:00
|
|
|
data = inb_p(SMB_HST_STS);
|
|
|
|
if (data & HST_STS_BAD)
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
outb_p(inb_p(SMB_HST_CNTL2) | HST_CNTL2_START, SMB_HST_CNTL2);
|
|
|
|
|
|
|
|
timeout = ALI1563_MAX_TIMEOUT;
|
2010-01-16 19:43:13 +00:00
|
|
|
do {
|
2005-04-16 22:20:36 +00:00
|
|
|
msleep(1);
|
2010-01-16 19:43:13 +00:00
|
|
|
} while (((data = inb_p(SMB_HST_STS)) & HST_STS_BUSY) && --timeout);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
dev_dbg(&a->dev, "Transaction (post): STS=%02x, CNTL1=%02x, "
|
|
|
|
"CNTL2=%02x, CMD=%02x, ADD=%02x, DAT0=%02x, DAT1=%02x\n",
|
|
|
|
inb_p(SMB_HST_STS), inb_p(SMB_HST_CNTL1), inb_p(SMB_HST_CNTL2),
|
|
|
|
inb_p(SMB_HST_CMD), inb_p(SMB_HST_ADD), inb_p(SMB_HST_DAT0),
|
|
|
|
inb_p(SMB_HST_DAT1));
|
|
|
|
|
|
|
|
if (timeout && !(data & HST_STS_BAD))
|
|
|
|
return 0;
|
|
|
|
|
2005-04-21 09:07:56 +00:00
|
|
|
if (!timeout) {
|
|
|
|
dev_err(&a->dev, "Timeout - Trying to KILL transaction!\n");
|
2005-04-16 22:20:36 +00:00
|
|
|
/* Issue 'kill' to host controller */
|
2014-04-11 11:44:44 +00:00
|
|
|
outb_p(HST_CNTL2_KILL, SMB_HST_CNTL2);
|
2005-04-21 09:07:56 +00:00
|
|
|
data = inb_p(SMB_HST_STS);
|
2008-07-14 20:38:25 +00:00
|
|
|
status = -ETIMEDOUT;
|
2014-04-11 11:44:44 +00:00
|
|
|
}
|
2005-04-21 09:07:56 +00:00
|
|
|
|
|
|
|
/* device error - no response, ignore the autodetection case */
|
2008-07-14 20:38:25 +00:00
|
|
|
if (data & HST_STS_DEVERR) {
|
|
|
|
if (size != HST_CNTL2_QUICK)
|
|
|
|
dev_err(&a->dev, "Device error!\n");
|
|
|
|
status = -ENXIO;
|
2005-04-21 09:07:56 +00:00
|
|
|
}
|
|
|
|
/* bus collision */
|
|
|
|
if (data & HST_STS_BUSERR) {
|
|
|
|
dev_err(&a->dev, "Bus collision!\n");
|
|
|
|
/* Issue timeout, hoping it helps */
|
2014-04-11 11:44:44 +00:00
|
|
|
outb_p(HST_CNTL1_TIMEOUT, SMB_HST_CNTL1);
|
2005-04-21 09:07:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if (data & HST_STS_FAIL) {
|
|
|
|
dev_err(&a->dev, "Cleaning fail after KILL!\n");
|
2014-04-11 11:44:44 +00:00
|
|
|
outb_p(0x0, SMB_HST_CNTL2);
|
2005-04-21 09:07:56 +00:00
|
|
|
}
|
|
|
|
|
2008-07-14 20:38:25 +00:00
|
|
|
return status;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2014-04-11 11:44:44 +00:00
|
|
|
static int ali1563_block_start(struct i2c_adapter *a)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
|
|
|
u32 data;
|
|
|
|
int timeout;
|
2008-07-14 20:38:25 +00:00
|
|
|
int status = -EIO;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
dev_dbg(&a->dev, "Block (pre): STS=%02x, CNTL1=%02x, "
|
|
|
|
"CNTL2=%02x, CMD=%02x, ADD=%02x, DAT0=%02x, DAT1=%02x\n",
|
|
|
|
inb_p(SMB_HST_STS), inb_p(SMB_HST_CNTL1), inb_p(SMB_HST_CNTL2),
|
|
|
|
inb_p(SMB_HST_CMD), inb_p(SMB_HST_ADD), inb_p(SMB_HST_DAT0),
|
|
|
|
inb_p(SMB_HST_DAT1));
|
|
|
|
|
|
|
|
data = inb_p(SMB_HST_STS);
|
|
|
|
if (data & HST_STS_BAD) {
|
2014-04-11 11:44:44 +00:00
|
|
|
dev_warn(&a->dev, "ali1563: Trying to reset busy device\n");
|
|
|
|
outb_p(data | HST_STS_BAD, SMB_HST_STS);
|
2005-04-16 22:20:36 +00:00
|
|
|
data = inb_p(SMB_HST_STS);
|
|
|
|
if (data & HST_STS_BAD)
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Clear byte-ready bit */
|
|
|
|
outb_p(data | HST_STS_DONE, SMB_HST_STS);
|
|
|
|
|
|
|
|
/* Start transaction and wait for byte-ready bit to be set */
|
|
|
|
outb_p(inb_p(SMB_HST_CNTL2) | HST_CNTL2_START, SMB_HST_CNTL2);
|
|
|
|
|
|
|
|
timeout = ALI1563_MAX_TIMEOUT;
|
2010-01-16 19:43:13 +00:00
|
|
|
do {
|
2005-04-16 22:20:36 +00:00
|
|
|
msleep(1);
|
2010-01-16 19:43:13 +00:00
|
|
|
} while (!((data = inb_p(SMB_HST_STS)) & HST_STS_DONE) && --timeout);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
dev_dbg(&a->dev, "Block (post): STS=%02x, CNTL1=%02x, "
|
|
|
|
"CNTL2=%02x, CMD=%02x, ADD=%02x, DAT0=%02x, DAT1=%02x\n",
|
|
|
|
inb_p(SMB_HST_STS), inb_p(SMB_HST_CNTL1), inb_p(SMB_HST_CNTL2),
|
|
|
|
inb_p(SMB_HST_CMD), inb_p(SMB_HST_ADD), inb_p(SMB_HST_DAT0),
|
|
|
|
inb_p(SMB_HST_DAT1));
|
|
|
|
|
|
|
|
if (timeout && !(data & HST_STS_BAD))
|
|
|
|
return 0;
|
2008-07-14 20:38:25 +00:00
|
|
|
|
|
|
|
if (timeout == 0)
|
|
|
|
status = -ETIMEDOUT;
|
|
|
|
|
|
|
|
if (data & HST_STS_DEVERR)
|
|
|
|
status = -ENXIO;
|
|
|
|
|
2005-04-21 09:07:56 +00:00
|
|
|
dev_err(&a->dev, "SMBus Error: %s%s%s%s%s\n",
|
2008-07-14 20:38:25 +00:00
|
|
|
timeout ? "" : "Timeout ",
|
2005-04-16 22:20:36 +00:00
|
|
|
data & HST_STS_FAIL ? "Transaction Failed " : "",
|
|
|
|
data & HST_STS_BUSERR ? "No response or Bus Collision " : "",
|
|
|
|
data & HST_STS_DEVERR ? "Device Error " : "",
|
|
|
|
!(data & HST_STS_DONE) ? "Transaction Never Finished " : "");
|
2008-07-14 20:38:25 +00:00
|
|
|
return status;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2014-04-11 11:44:44 +00:00
|
|
|
static int ali1563_block(struct i2c_adapter *a,
|
|
|
|
union i2c_smbus_data *data, u8 rw)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
|
|
|
int i, len;
|
|
|
|
int error = 0;
|
|
|
|
|
|
|
|
/* Do we need this? */
|
2014-04-11 11:44:44 +00:00
|
|
|
outb_p(HST_CNTL1_LAST, SMB_HST_CNTL1);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
if (rw == I2C_SMBUS_WRITE) {
|
|
|
|
len = data->block[0];
|
|
|
|
if (len < 1)
|
|
|
|
len = 1;
|
|
|
|
else if (len > 32)
|
|
|
|
len = 32;
|
2014-04-11 11:44:44 +00:00
|
|
|
outb_p(len, SMB_HST_DAT0);
|
|
|
|
outb_p(data->block[1], SMB_BLK_DAT);
|
2005-04-16 22:20:36 +00:00
|
|
|
} else
|
|
|
|
len = 32;
|
|
|
|
|
|
|
|
outb_p(inb_p(SMB_HST_CNTL2) | HST_CNTL2_BLOCK, SMB_HST_CNTL2);
|
|
|
|
|
|
|
|
for (i = 0; i < len; i++) {
|
|
|
|
if (rw == I2C_SMBUS_WRITE) {
|
|
|
|
outb_p(data->block[i + 1], SMB_BLK_DAT);
|
2014-04-11 11:44:44 +00:00
|
|
|
error = ali1563_block_start(a);
|
|
|
|
if (error)
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
} else {
|
2014-04-11 11:44:44 +00:00
|
|
|
error = ali1563_block_start(a);
|
|
|
|
if (error)
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
if (i == 0) {
|
|
|
|
len = inb_p(SMB_HST_DAT0);
|
|
|
|
if (len < 1)
|
|
|
|
len = 1;
|
|
|
|
else if (len > 32)
|
|
|
|
len = 32;
|
|
|
|
}
|
|
|
|
data->block[i+1] = inb_p(SMB_BLK_DAT);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/* Do we need this? */
|
2014-04-11 11:44:44 +00:00
|
|
|
outb_p(HST_CNTL1_LAST, SMB_HST_CNTL1);
|
2005-04-16 22:20:36 +00:00
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
2014-04-11 11:44:44 +00:00
|
|
|
static s32 ali1563_access(struct i2c_adapter *a, u16 addr,
|
2005-04-16 22:20:36 +00:00
|
|
|
unsigned short flags, char rw, u8 cmd,
|
2014-04-11 11:44:44 +00:00
|
|
|
int size, union i2c_smbus_data *data)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
|
|
|
int error = 0;
|
|
|
|
int timeout;
|
|
|
|
u32 reg;
|
|
|
|
|
|
|
|
for (timeout = ALI1563_MAX_TIMEOUT; timeout; timeout--) {
|
2014-04-11 11:44:44 +00:00
|
|
|
reg = inb_p(SMB_HST_STS);
|
|
|
|
if (!(reg & HST_STS_BUSY))
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (!timeout)
|
2014-04-11 11:44:44 +00:00
|
|
|
dev_warn(&a->dev, "SMBus not idle. HST_STS = %02x\n", reg);
|
|
|
|
outb_p(0xff, SMB_HST_STS);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
/* Map the size to what the chip understands */
|
|
|
|
switch (size) {
|
|
|
|
case I2C_SMBUS_QUICK:
|
|
|
|
size = HST_CNTL2_QUICK;
|
|
|
|
break;
|
|
|
|
case I2C_SMBUS_BYTE:
|
|
|
|
size = HST_CNTL2_BYTE;
|
|
|
|
break;
|
|
|
|
case I2C_SMBUS_BYTE_DATA:
|
|
|
|
size = HST_CNTL2_BYTE_DATA;
|
|
|
|
break;
|
|
|
|
case I2C_SMBUS_WORD_DATA:
|
|
|
|
size = HST_CNTL2_WORD_DATA;
|
|
|
|
break;
|
|
|
|
case I2C_SMBUS_BLOCK_DATA:
|
|
|
|
size = HST_CNTL2_BLOCK;
|
|
|
|
break;
|
2008-07-14 20:38:25 +00:00
|
|
|
default:
|
|
|
|
dev_warn(&a->dev, "Unsupported transaction %d\n", size);
|
|
|
|
error = -EOPNOTSUPP;
|
|
|
|
goto Done;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
outb_p(((addr & 0x7f) << 1) | (rw & 0x01), SMB_HST_ADD);
|
2014-04-11 11:44:44 +00:00
|
|
|
outb_p((inb_p(SMB_HST_CNTL2) & ~HST_CNTL2_SIZEMASK) |
|
|
|
|
(size << 3), SMB_HST_CNTL2);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
/* Write the command register */
|
2005-04-21 09:07:56 +00:00
|
|
|
|
2014-04-11 11:44:44 +00:00
|
|
|
switch (size) {
|
2005-04-16 22:20:36 +00:00
|
|
|
case HST_CNTL2_BYTE:
|
2014-04-11 11:44:44 +00:00
|
|
|
if (rw == I2C_SMBUS_WRITE)
|
2005-04-21 09:07:56 +00:00
|
|
|
/* Beware it uses DAT0 register and not CMD! */
|
|
|
|
outb_p(cmd, SMB_HST_DAT0);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case HST_CNTL2_BYTE_DATA:
|
|
|
|
outb_p(cmd, SMB_HST_CMD);
|
|
|
|
if (rw == I2C_SMBUS_WRITE)
|
|
|
|
outb_p(data->byte, SMB_HST_DAT0);
|
|
|
|
break;
|
|
|
|
case HST_CNTL2_WORD_DATA:
|
|
|
|
outb_p(cmd, SMB_HST_CMD);
|
|
|
|
if (rw == I2C_SMBUS_WRITE) {
|
|
|
|
outb_p(data->word & 0xff, SMB_HST_DAT0);
|
|
|
|
outb_p((data->word & 0xff00) >> 8, SMB_HST_DAT1);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case HST_CNTL2_BLOCK:
|
|
|
|
outb_p(cmd, SMB_HST_CMD);
|
2014-04-11 11:44:44 +00:00
|
|
|
error = ali1563_block(a, data, rw);
|
2005-04-16 22:20:36 +00:00
|
|
|
goto Done;
|
|
|
|
}
|
|
|
|
|
2014-04-11 11:44:44 +00:00
|
|
|
error = ali1563_transaction(a, size);
|
|
|
|
if (error)
|
2005-04-16 22:20:36 +00:00
|
|
|
goto Done;
|
|
|
|
|
|
|
|
if ((rw == I2C_SMBUS_WRITE) || (size == HST_CNTL2_QUICK))
|
|
|
|
goto Done;
|
|
|
|
|
|
|
|
switch (size) {
|
|
|
|
case HST_CNTL2_BYTE: /* Result put in SMBHSTDAT0 */
|
|
|
|
data->byte = inb_p(SMB_HST_DAT0);
|
|
|
|
break;
|
|
|
|
case HST_CNTL2_BYTE_DATA:
|
|
|
|
data->byte = inb_p(SMB_HST_DAT0);
|
|
|
|
break;
|
|
|
|
case HST_CNTL2_WORD_DATA:
|
|
|
|
data->word = inb_p(SMB_HST_DAT0) + (inb_p(SMB_HST_DAT1) << 8);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
Done:
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
2014-04-11 11:44:44 +00:00
|
|
|
static u32 ali1563_func(struct i2c_adapter *a)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
|
|
|
return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
|
|
|
|
I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
|
|
|
|
I2C_FUNC_SMBUS_BLOCK_DATA;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2012-11-27 20:59:38 +00:00
|
|
|
static int ali1563_setup(struct pci_dev *dev)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
|
|
|
u16 ctrl;
|
|
|
|
|
2014-04-11 11:44:44 +00:00
|
|
|
pci_read_config_word(dev, ALI1563_SMBBA, &ctrl);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
/* SMB I/O Base in high 12 bits and must be aligned with the
|
|
|
|
* size of the I/O space. */
|
|
|
|
ali1563_smba = ctrl & ~(ALI1563_SMB_IOSIZE - 1);
|
|
|
|
if (!ali1563_smba) {
|
2014-04-11 11:44:44 +00:00
|
|
|
dev_warn(&dev->dev, "ali1563_smba Uninitialized\n");
|
2005-04-16 22:20:36 +00:00
|
|
|
goto Err;
|
|
|
|
}
|
2007-02-13 21:08:57 +00:00
|
|
|
|
|
|
|
/* Check if device is enabled */
|
|
|
|
if (!(ctrl & ALI1563_SMB_HOSTEN)) {
|
|
|
|
dev_warn(&dev->dev, "Host Controller not enabled\n");
|
|
|
|
goto Err;
|
|
|
|
}
|
|
|
|
if (!(ctrl & ALI1563_SMB_IOEN)) {
|
|
|
|
dev_warn(&dev->dev, "I/O space not enabled, trying manually\n");
|
|
|
|
pci_write_config_word(dev, ALI1563_SMBBA,
|
|
|
|
ctrl | ALI1563_SMB_IOEN);
|
|
|
|
pci_read_config_word(dev, ALI1563_SMBBA, &ctrl);
|
|
|
|
if (!(ctrl & ALI1563_SMB_IOEN)) {
|
2014-04-11 11:44:44 +00:00
|
|
|
dev_err(&dev->dev,
|
|
|
|
"I/O space still not enabled, giving up\n");
|
2007-02-13 21:08:57 +00:00
|
|
|
goto Err;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-07-14 20:38:33 +00:00
|
|
|
if (acpi_check_region(ali1563_smba, ALI1563_SMB_IOSIZE,
|
|
|
|
ali1563_pci_driver.name))
|
|
|
|
goto Err;
|
|
|
|
|
2005-09-25 14:37:04 +00:00
|
|
|
if (!request_region(ali1563_smba, ALI1563_SMB_IOSIZE,
|
|
|
|
ali1563_pci_driver.name)) {
|
2007-02-13 21:08:57 +00:00
|
|
|
dev_err(&dev->dev, "Could not allocate I/O space at 0x%04x\n",
|
|
|
|
ali1563_smba);
|
2005-04-16 22:20:36 +00:00
|
|
|
goto Err;
|
|
|
|
}
|
2007-02-13 21:08:57 +00:00
|
|
|
dev_info(&dev->dev, "Found ALi1563 SMBus at 0x%04x\n", ali1563_smba);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
Err:
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ali1563_shutdown(struct pci_dev *dev)
|
|
|
|
{
|
2014-04-11 11:44:44 +00:00
|
|
|
release_region(ali1563_smba, ALI1563_SMB_IOSIZE);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2006-09-03 20:39:46 +00:00
|
|
|
static const struct i2c_algorithm ali1563_algorithm = {
|
2005-04-16 22:20:36 +00:00
|
|
|
.smbus_xfer = ali1563_access,
|
|
|
|
.functionality = ali1563_func,
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct i2c_adapter ali1563_adapter = {
|
|
|
|
.owner = THIS_MODULE,
|
2008-07-14 20:38:29 +00:00
|
|
|
.class = I2C_CLASS_HWMON | I2C_CLASS_SPD,
|
2005-04-16 22:20:36 +00:00
|
|
|
.algo = &ali1563_algorithm,
|
|
|
|
};
|
|
|
|
|
2012-11-27 20:59:38 +00:00
|
|
|
static int ali1563_probe(struct pci_dev *dev,
|
|
|
|
const struct pci_device_id *id_table)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
|
|
|
int error;
|
|
|
|
|
2014-04-11 11:44:44 +00:00
|
|
|
error = ali1563_setup(dev);
|
|
|
|
if (error)
|
2007-02-13 21:08:57 +00:00
|
|
|
goto exit;
|
2005-04-16 22:20:36 +00:00
|
|
|
ali1563_adapter.dev.parent = &dev->dev;
|
2009-01-07 13:29:18 +00:00
|
|
|
snprintf(ali1563_adapter.name, sizeof(ali1563_adapter.name),
|
|
|
|
"SMBus ALi 1563 Adapter @ %04x", ali1563_smba);
|
2014-04-11 11:44:44 +00:00
|
|
|
error = i2c_add_adapter(&ali1563_adapter);
|
|
|
|
if (error)
|
2007-02-13 21:08:57 +00:00
|
|
|
goto exit_shutdown;
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
exit_shutdown:
|
|
|
|
ali1563_shutdown(dev);
|
|
|
|
exit:
|
|
|
|
dev_warn(&dev->dev, "ALi1563 SMBus probe failed (%d)\n", error);
|
2005-04-16 22:20:36 +00:00
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
2012-11-27 20:59:38 +00:00
|
|
|
static void ali1563_remove(struct pci_dev *dev)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
|
|
|
i2c_del_adapter(&ali1563_adapter);
|
|
|
|
ali1563_shutdown(dev);
|
|
|
|
}
|
|
|
|
|
2013-12-02 23:11:20 +00:00
|
|
|
static const struct pci_device_id ali1563_id_table[] = {
|
2005-04-16 22:20:36 +00:00
|
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1563) },
|
|
|
|
{},
|
|
|
|
};
|
|
|
|
|
2014-04-11 11:44:44 +00:00
|
|
|
MODULE_DEVICE_TABLE(pci, ali1563_id_table);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
static struct pci_driver ali1563_pci_driver = {
|
2014-04-11 11:44:44 +00:00
|
|
|
.name = "ali1563_smbus",
|
2005-04-16 22:20:36 +00:00
|
|
|
.id_table = ali1563_id_table,
|
2014-04-11 11:44:44 +00:00
|
|
|
.probe = ali1563_probe,
|
2012-11-27 20:59:38 +00:00
|
|
|
.remove = ali1563_remove,
|
2005-04-16 22:20:36 +00:00
|
|
|
};
|
|
|
|
|
2012-07-24 12:13:56 +00:00
|
|
|
module_pci_driver(ali1563_pci_driver);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
MODULE_LICENSE("GPL");
|