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/*
* hsic_usb3503.c - HSIC to USB for ODROID
*/
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/gpio.h>
#include <linux/earlysuspend.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/usb/hsic_usb3503.h>
#include <plat/gpio-cfg.h>
#include <plat/devs.h>
#include <plat/ehci.h>
#define USB3503_VERSION "1.0.0"
#define USB3503_NAME "usb3503"
extern int s5p_ehci_port_power_on(struct platform_device *pdev);
extern int s5p_ohci_port_power_on(struct platform_device *pdev);
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
/*
* driver private data
*/
struct usb3503_chip {
struct i2c_client *i2c;
struct usb3503_platform_data *pdata;
};
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
static irqreturn_t irq_handler(int irq, void *dev_id)
{
printk(" %s [%d]...\n",__func__,__LINE__);
return IRQ_HANDLED;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
static int usb3503_hw_init(struct usb3503_chip *chip)
{
struct i2c_client *client = chip->i2c;
int ret =0;
unsigned val=0;
ret = gpio_is_valid(chip->pdata->irq_gpio);
if (ret) {
ret = gpio_request(chip->pdata->irq_gpio, "irq_gpio");
if (ret) {
dev_err(&client->dev, "gpio %d request failed\n",
chip->pdata->irq_gpio);
return -EIO;
}
ret = gpio_direction_output(chip->pdata->irq_gpio, 1);
if (ret) {
dev_err(&client->dev, "gpio %d set direction failed\n",
chip->pdata->irq_gpio);
return -EIO;
}
mdelay(10);
}
else return -EIO;
ret = gpio_is_valid(chip->pdata->gpio_hub_con);
if (ret) {
ret = gpio_request(chip->pdata->gpio_hub_con, "gpio_hub_con");
if (ret) {
dev_err(&client->dev, "gpio %d request failed\n",
chip->pdata->gpio_hub_con);
return -EIO;
}
ret = gpio_direction_output(chip->pdata->gpio_hub_con, 0);
if (ret) {
dev_err(&client->dev, "gpio %d set direction failed\n",
chip->pdata->gpio_hub_con);
return -EIO;
}
mdelay(10);
}
else return -EIO;
// RESET_N = 0 -> 1 : Standby Mode -> Configuration start
ret = gpio_is_valid(chip->pdata->gpio_reset);
if (ret) {
ret = gpio_request(chip->pdata->gpio_reset, "gpio_reset");
if (ret) {
dev_err(&client->dev, "gpio %d request failed\n",
chip->pdata->gpio_reset);
return -EIO;
}
s3c_gpio_setpull(chip->pdata->gpio_reset, S3C_GPIO_PULL_NONE);
ret = gpio_direction_output(chip->pdata->gpio_reset, 1);
if (ret) {
dev_err(&client->dev, "gpio %d set direction failed\n",
chip->pdata->gpio_reset);
return -EIO;
}
mdelay(10);
gpio_set_value(chip->pdata->gpio_reset, 0);
mdelay(10);
gpio_set_value(chip->pdata->gpio_reset, 1);
gpio_free(chip->pdata->gpio_reset);
}
else return -EIO;
// Hub Wait RefClk stage
mdelay(10);
// Hub Configuration Stage
val = i2c_smbus_read_byte_data(client, USB3503_SP_ILOCK);
printk("%s : read val = 0x%02x\n",__func__,val);
// if(val&0x01) ; //Device will remain Hub Mode, PRTPWR Output
// else i2c_smbus_write_byte_data(client, USB3503_SP_ILOCK, val|0x01); //Device will remain Hub Mode, PRTPWR Output
//
// while(1) {
// mdelay(10);
// val = i2c_smbus_read_byte_data(client, USB3503_SP_ILOCK);
// printk("%s : read val = 0x%02x\n",__func__,val);
// if(val&0x01)
// }
// i2c_smbus_write_byte_data(client, USB3503_SP_ILOCK, 0x33); //Device will remain Hub Mode, PRTPWR Output
mdelay(100);
i2c_smbus_write_byte_data(client, USB3503_INT_MASK, 0x0C);
// SMSC VID/PID/DID
i2c_smbus_write_byte_data(client, USB3503_VIDL, 0x24);
i2c_smbus_write_byte_data(client, USB3503_VIDM, 0x04);
i2c_smbus_write_byte_data(client, USB3503_PIDL, 0x03);
i2c_smbus_write_byte_data(client, USB3503_PIDM, 0x35);
i2c_smbus_write_byte_data(client, USB3503_DIDL, 0xA0);
i2c_smbus_write_byte_data(client, USB3503_DIDM, 0xA1);
i2c_smbus_write_byte_data(client, USB3503_CFG1, 0x80);
i2c_smbus_write_byte_data(client, USB3503_CFG2, 0x28);
i2c_smbus_write_byte_data(client, USB3503_CFG3, 0x03);
i2c_smbus_write_byte_data(client, USB3503_NRD, 0x04);
// i2c_smbus_write_byte_data(client, USB3503_PDS, 0x00);
// i2c_smbus_write_byte_data(client, USB3503_PDB, 0x0E);
// i2c_smbus_write_byte_data(client, USB3503_MAXPS, 0xFA);
// i2c_smbus_write_byte_data(client, USB3503_MAXPB, 0x00);
// i2c_smbus_write_byte_data(client, USB3503_HCMCS, 0x32);
// i2c_smbus_write_byte_data(client, USB3503_HCMCB, 0x00);
// i2c_smbus_write_byte_data(client, USB3503_PWRT, 0x00);
// i2c_smbus_write_byte_data(client, USB3503_LANGIDH, 0x04);
// i2c_smbus_write_byte_data(client, USB3503_LANGIDL, 0x09);
// i2c_smbus_write_byte_data(client, USB3503_OCS, 0x00);
i2c_smbus_write_byte_data(client, USB3503_VSNSUP3, 0x06);
i2c_smbus_write_byte_data(client, USB3503_VSNS21, 0x66);
i2c_smbus_write_byte_data(client, USB3503_BSTUP3, 0x06);
i2c_smbus_write_byte_data(client, USB3503_BST21, 0x66);
// i2c_smbus_write_byte_data(client, USB3503_PRTSP, 0x02);
// i2c_smbus_write_byte_data(client, USB3503_SP_ILOCK, 0x32); //Device will remain Hub Mode, PRTPWR Output
// i2c_smbus_write_byte_data(client, USB3503_MFRSL, 1);
// i2c_smbus_write_byte_data(client, USB3503_PRDSL, 1);
// i2c_smbus_write_byte_data(client, USB3503_SERSL, 1);
// i2c_smbus_write_byte_data(client, USB3503_MANSTR, 'a');
// i2c_smbus_write_byte_data(client, USB3503_PRDSTR, 'b');
// i2c_smbus_write_byte_data(client, USB3503_SERSTR, 'c');
mdelay(100);
gpio_set_value(chip->pdata->gpio_hub_con, 1);
gpio_free(chip->pdata->gpio_hub_con);
mdelay(30);
i2c_smbus_write_byte_data(client, USB3503_SP_ILOCK, val|0x01); //Device will remain Hub Mode, PRTPWR Output
mdelay(100);
gpio_direction_input(chip->pdata->irq_gpio);
gpio_free(chip->pdata->irq_gpio);
return 0;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
static int usb3503_i2c_probe (struct i2c_client *client, const struct i2c_device_id *id)
{
struct usb3503_chip *chip;
struct device *dev = &client->dev;
int ret=0;
/* setup i2c client */
if (!i2c_check_functionality (client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
dev_err(&client->dev, "i2c byte data not supported\n");
return -EIO;
}
if (!client->dev.platform_data) {
dev_err(&client->dev, "pdata is not available\n");
return -EINVAL;
}
chip = kzalloc (sizeof (struct usb3503_chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
chip->pdata = client->dev.platform_data;
chip->i2c = client;
i2c_set_clientdata (client, chip);
usb3503_hw_init(chip);
ret = request_irq(chip->pdata->sys_irq, irq_handler, IRQF_DISABLED, "usb3503-irq", NULL);
if (ret < 0) {
printk(KERN_ERR "USB3503 : Failed to register sys_irq.\n");
return -EIO;
}
irq_set_irq_type(chip->pdata->sys_irq, IRQ_TYPE_EDGE_BOTH);
dev_set_drvdata(dev, chip);
return 0;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
static int usb3503_i2c_remove (struct i2c_client *client)
{
struct usb3503_chip *usb3503 = i2c_get_clientdata (client);
i2c_set_clientdata (client, NULL);
kfree (usb3503);
return 0;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
#ifdef CONFIG_PM
#ifdef CONFIG_HAS_EARLYSUSPEND
static void usb3503_early_suspend(struct early_suspend *h)
{
return;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
static void usb3503_late_resume(struct early_suspend *h)
{
return;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
static struct early_suspend usb3503_early_suspend_desc = {
.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN,
.suspend = usb3503_early_suspend,
.resume = usb3503_late_resume
};
#endif //CONFIG_HAS_EARLYSUSPEND
#endif //CONFIG_PM
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
static const struct i2c_device_id usb3503_id[] = {
{USB3503_NAME, 0},
{},
};
MODULE_DEVICE_TABLE (i2c, usb3503_id);
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
struct i2c_driver usb3503_driver = {
.driver = {
.name = USB3503_NAME,
.owner = THIS_MODULE,
},
.probe = usb3503_i2c_probe,
.remove = usb3503_i2c_remove,
.id_table = usb3503_id,
};
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
static int __init usb3503_init (void)
{
int ret;
ret = i2c_add_driver (&usb3503_driver);
if (ret) {
printk(KERN_ERR "i2c add driver Failed %d\n", ret);
return -1;
}
#ifdef CONFIG_HAS_EARLYSUSPEND
register_early_suspend(&usb3503_early_suspend_desc);
#endif
return 0;
}
module_init (usb3503_init);
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
static void __exit usb3503_exit (void)
{
#ifdef CONFIG_HAS_EARLYSUSPEND
unregister_early_suspend(&usb3503_early_suspend_desc);
#endif
i2c_del_driver (&usb3503_driver);
}
module_exit (usb3503_exit);
MODULE_LICENSE ("GPL");
MODULE_DESCRIPTION ("USB3503 linear virbrator driver");
MODULE_VERSION (USB3503_VERSION);
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