1 files changed, 0 insertions, 448 deletions
diff --git a/ANDROID_3.4.5/drivers/i2c/busses/i2c-ali1563.c b/ANDROID_3.4.5/drivers/i2c/busses/i2c-ali1563.c
deleted file mode 100644
index 47ae0091..00000000
--- a/ANDROID_3.4.5/drivers/i2c/busses/i2c-ali1563.c
+++ /dev/null
@@ -1,448 +0,0 @@
-/**
- *	i2c-ali1563.c - i2c driver for the ALi 1563 Southbridge
- *
- *	Copyright (C) 2004 Patrick Mochel
- *		      2005 Rudolf Marek <r.marek@assembler.cz>
- *
- *	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.
- *
- *	This file is released under the GPLv2
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/i2c.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/acpi.h>
-
-#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
-
-
-#define HST_CNTL2_SIZEMASK	0x38
-
-static struct pci_driver ali1563_pci_driver;
-static unsigned short ali1563_smba;
-
-static int ali1563_transaction(struct i2c_adapter * a, int size)
-{
-	u32 data;
-	int timeout;
-	int status = -EIO;
-
-	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) {
-		dev_err(&a->dev, "ali1563: Trying to reset busy device\n");
-		outb_p(data | HST_STS_BAD,SMB_HST_STS);
-		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;
-	do {
-		msleep(1);
-	} while (((data = inb_p(SMB_HST_STS)) & HST_STS_BUSY) && --timeout);
-
-	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;
-
-	if (!timeout) {
-		dev_err(&a->dev, "Timeout - Trying to KILL transaction!\n");
-		/* Issue 'kill' to host controller */
-		outb_p(HST_CNTL2_KILL,SMB_HST_CNTL2);
-		data = inb_p(SMB_HST_STS);
-		status = -ETIMEDOUT;
- 	}
-
-	/* device error - no response, ignore the autodetection case */
-	if (data & HST_STS_DEVERR) {
-		if (size != HST_CNTL2_QUICK)
-			dev_err(&a->dev, "Device error!\n");
-		status = -ENXIO;
-	}
-	/* bus collision */
-	if (data & HST_STS_BUSERR) {
-		dev_err(&a->dev, "Bus collision!\n");
-		/* Issue timeout, hoping it helps */
-		outb_p(HST_CNTL1_TIMEOUT,SMB_HST_CNTL1);
-	}
-
-	if (data & HST_STS_FAIL) {
-		dev_err(&a->dev, "Cleaning fail after KILL!\n");
-		outb_p(0x0,SMB_HST_CNTL2);
-	}
-
-	return status;
-}
-
-static int ali1563_block_start(struct i2c_adapter * a)
-{
-	u32 data;
-	int timeout;
-	int status = -EIO;
-
-	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) {
-		dev_warn(&a->dev,"ali1563: Trying to reset busy device\n");
-		outb_p(data | HST_STS_BAD,SMB_HST_STS);
-		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;
-	do {
-		msleep(1);
-	} while (!((data = inb_p(SMB_HST_STS)) & HST_STS_DONE) && --timeout);
-
-	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;
-
-	if (timeout == 0)
-		status = -ETIMEDOUT;
-
-	if (data & HST_STS_DEVERR)
-		status = -ENXIO;
-
-	dev_err(&a->dev, "SMBus Error: %s%s%s%s%s\n",
-		timeout ? "" : "Timeout ",
-		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 " : "");
-	return status;
-}
-
-static int ali1563_block(struct i2c_adapter * a, union i2c_smbus_data * data, u8 rw)
-{
-	int i, len;
-	int error = 0;
-
-	/* Do we need this? */
-	outb_p(HST_CNTL1_LAST,SMB_HST_CNTL1);
-
-	if (rw == I2C_SMBUS_WRITE) {
-		len = data->block[0];
-		if (len < 1)
-			len = 1;
-		else if (len > 32)
-			len = 32;
-		outb_p(len,SMB_HST_DAT0);
-		outb_p(data->block[1],SMB_BLK_DAT);
-	} 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);
-			if ((error = ali1563_block_start(a)))
-				break;
-		} else {
-			if ((error = ali1563_block_start(a)))
-				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? */
-	outb_p(HST_CNTL1_LAST,SMB_HST_CNTL1);
-	return error;
-}
-
-static s32 ali1563_access(struct i2c_adapter * a, u16 addr,
-			  unsigned short flags, char rw, u8 cmd,
-			  int size, union i2c_smbus_data * data)
-{
-	int error = 0;
-	int timeout;
-	u32 reg;
-
-	for (timeout = ALI1563_MAX_TIMEOUT; timeout; timeout--) {
-		if (!(reg = inb_p(SMB_HST_STS) & HST_STS_BUSY))
-			break;
-	}
-	if (!timeout)
-		dev_warn(&a->dev,"SMBus not idle. HST_STS = %02x\n",reg);
-	outb_p(0xff,SMB_HST_STS);
-
-	/* 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;
-	default:
-		dev_warn(&a->dev, "Unsupported transaction %d\n", size);
-		error = -EOPNOTSUPP;
-		goto Done;
-	}
-
-	outb_p(((addr & 0x7f) << 1) | (rw & 0x01), SMB_HST_ADD);
-	outb_p((inb_p(SMB_HST_CNTL2) & ~HST_CNTL2_SIZEMASK) | (size << 3), SMB_HST_CNTL2);
-
-	/* Write the command register */
-
-	switch(size) {
-	case HST_CNTL2_BYTE:
-		if (rw== I2C_SMBUS_WRITE)
-			/* Beware it uses DAT0 register and not CMD! */
-			outb_p(cmd, SMB_HST_DAT0);
-		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);
-		error = ali1563_block(a,data,rw);
-		goto Done;
-	}
-
-	if ((error = ali1563_transaction(a, size)))
-		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;
-}
-
-static u32 ali1563_func(struct i2c_adapter * a)
-{
-	return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
-	    I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
-	    I2C_FUNC_SMBUS_BLOCK_DATA;
-}
-
-
-static int __devinit ali1563_setup(struct pci_dev * dev)
-{
-	u16 ctrl;
-
-	pci_read_config_word(dev,ALI1563_SMBBA,&ctrl);
-
-	/* 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) {
-		dev_warn(&dev->dev,"ali1563_smba Uninitialized\n");
-		goto Err;
-	}
-
-	/* 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)) {
-			dev_err(&dev->dev, "I/O space still not enabled, "
-				"giving up\n");
-			goto Err;
-		}
-	}
-
-	if (acpi_check_region(ali1563_smba, ALI1563_SMB_IOSIZE,
-			      ali1563_pci_driver.name))
-		goto Err;
-
-	if (!request_region(ali1563_smba, ALI1563_SMB_IOSIZE,
-			    ali1563_pci_driver.name)) {
-		dev_err(&dev->dev, "Could not allocate I/O space at 0x%04x\n",
-			ali1563_smba);
-		goto Err;
-	}
-	dev_info(&dev->dev, "Found ALi1563 SMBus at 0x%04x\n", ali1563_smba);
-
-	return 0;
-Err:
-	return -ENODEV;
-}
-
-static void ali1563_shutdown(struct pci_dev *dev)
-{
-	release_region(ali1563_smba,ALI1563_SMB_IOSIZE);
-}
-
-static const struct i2c_algorithm ali1563_algorithm = {
-	.smbus_xfer	= ali1563_access,
-	.functionality	= ali1563_func,
-};
-
-static struct i2c_adapter ali1563_adapter = {
-	.owner	= THIS_MODULE,
-	.class	= I2C_CLASS_HWMON | I2C_CLASS_SPD,
-	.algo	= &ali1563_algorithm,
-};
-
-static int __devinit ali1563_probe(struct pci_dev * dev,
-				const struct pci_device_id * id_table)
-{
-	int error;
-
-	if ((error = ali1563_setup(dev)))
-		goto exit;
-	ali1563_adapter.dev.parent = &dev->dev;
-	snprintf(ali1563_adapter.name, sizeof(ali1563_adapter.name),
-		 "SMBus ALi 1563 Adapter @ %04x", ali1563_smba);
-	if ((error = i2c_add_adapter(&ali1563_adapter)))
-		goto exit_shutdown;
-	return 0;
-
-exit_shutdown:
-	ali1563_shutdown(dev);
-exit:
-	dev_warn(&dev->dev, "ALi1563 SMBus probe failed (%d)\n", error);
-	return error;
-}
-
-static void __devexit ali1563_remove(struct pci_dev * dev)
-{
-	i2c_del_adapter(&ali1563_adapter);
-	ali1563_shutdown(dev);
-}
-
-static DEFINE_PCI_DEVICE_TABLE(ali1563_id_table) = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1563) },
-	{},
-};
-
-MODULE_DEVICE_TABLE (pci, ali1563_id_table);
-
-static struct pci_driver ali1563_pci_driver = {
- 	.name		= "ali1563_smbus",
-	.id_table	= ali1563_id_table,
- 	.probe		= ali1563_probe,
-	.remove		= __devexit_p(ali1563_remove),
-};
-
-static int __init ali1563_init(void)
-{
-	return pci_register_driver(&ali1563_pci_driver);
-}
-
-module_init(ali1563_init);
-
-static void __exit ali1563_exit(void)
-{
-	pci_unregister_driver(&ali1563_pci_driver);
-}
-
-module_exit(ali1563_exit);
-
-MODULE_LICENSE("GPL");