static int f7188x_gpio_direction_out(struct gpio_chip *chip,
unsigned offset, int value)
{
int err;
struct f7188x_gpio_bank *bank =
container_of(chip, struct f7188x_gpio_bank, chip);
struct f7188x_sio *sio = bank->data->sio;
u8 dir, data_out;
err = superio_enter(sio->addr);
if (err)
return err;
superio_select(sio->addr, SIO_LD_GPIO);
data_out = superio_inb(sio->addr, gpio_data_out(bank->regbase));
if (value)
data_out |= (1 << offset);
else
data_out &= ~(1 << offset);
superio_outb(sio->addr, gpio_data_out(bank->regbase), data_out);
dir = superio_inb(sio->addr, gpio_dir(bank->regbase));
dir |= (1 << offset);
superio_outb(sio->addr, gpio_dir(bank->regbase), dir);
superio_exit(sio->addr);
return 0;
}
static void wdt_stop(void)
{
unsigned long flags;
spin_lock_irqsave(&spinlock, flags);
superio_enter();
superio_select(GPIO);
superio_outb(0x00, WDTCTRL);
superio_outb(WDT_TOV1, WDTCFG);
superio_outb(0x00, WDTVALMSB);
superio_outb(0x00, WDTVALLSB);
superio_exit();
spin_unlock_irqrestore(&spinlock, flags);
}
static void select_pin(unsigned iminor)
{
/* select GPIO port/pin from device minor number */
device_select(SIO_GPIO_UNIT);
superio_outb(SIO_GPIO_PIN_SELECT,
((iminor << 1) & 0xF0) | (iminor & 0x7));
}
static void select_pin(unsigned iminor)
{
device_select(SIO_GPIO_UNIT);
superio_outb(SIO_GPIO_PIN_SELECT,
((iminor << 1) & 0xF0) | (iminor & 0x7));
}
static ssize_t
beep_enable_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6683_data *data = dev_get_drvdata(dev);
unsigned long val;
u8 reg;
int ret;
if (kstrtoul(buf, 10, &val) || (val != 0 && val != 1))
return -EINVAL;
mutex_lock(&data->update_lock);
ret = superio_enter(data->sioreg);
if (ret) {
count = ret;
goto error;
}
superio_select(data->sioreg, NCT6683_LD_HWM);
reg = superio_inb(data->sioreg, NCT6683_REG_CR_BEEP);
if (val)
reg |= NCT6683_CR_BEEP_MASK;
else
reg &= ~NCT6683_CR_BEEP_MASK;
superio_outb(data->sioreg, NCT6683_REG_CR_BEEP, reg);
superio_exit(data->sioreg);
error:
mutex_unlock(&data->update_lock);
return count;
}
/*
* The Nuvoton NCT6102D starts per default after reset with both,
* the internal watchdog and the internal legacy UART enabled. This
* code provides a function to disable the watchdog.
*/
int nct6102d_wdt_disable(void)
{
superio_enter();
/* Select logical device for WDT */
superio_select(NCT6102D_LD_WDT);
superio_outb(NCT6102D_WDT_TIMEOUT, 0x00);
superio_exit();
return 0;
}
static void wdt_start(void)
{
unsigned long flags;
spin_lock_irqsave(&spinlock, flags);
superio_enter();
superio_select(GPIO);
if (test_bit(WDTS_USE_GP, &wdt_status))
superio_outb(WDT_GAMEPORT, WDTCTRL);
else
superio_outb(WDT_CIRINT, WDTCTRL);
if (!testmode)
superio_outb(WDT_TOV1 | WDT_KRST | WDT_PWROK, WDTCFG);
else
superio_outb(WDT_TOV1, WDTCFG);
superio_outb(timeout>>8, WDTVALMSB);
superio_outb(timeout, WDTVALLSB);
superio_exit();
spin_unlock_irqrestore(&spinlock, flags);
}
static int __init nct6683_find(int sioaddr, struct nct6683_sio_data *sio_data)
{
int addr;
u16 val;
int err;
err = superio_enter(sioaddr);
if (err)
return err;
val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
| superio_inb(sioaddr, SIO_REG_DEVID + 1);
switch (val & SIO_ID_MASK) {
case SIO_NCT6683_ID:
sio_data->kind = nct6683;
break;
default:
if (val != 0xffff)
pr_debug("unsupported chip ID: 0x%04x\n", val);
goto fail;
}
/* We have a known chip, find the HWM I/O address */
superio_select(sioaddr, NCT6683_LD_HWM);
val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
| superio_inb(sioaddr, SIO_REG_ADDR + 1);
addr = val & IOREGION_ALIGNMENT;
if (addr == 0) {
pr_err("EC base I/O port unconfigured\n");
goto fail;
}
/* Activate logical device if needed */
val = superio_inb(sioaddr, SIO_REG_ENABLE);
if (!(val & 0x01)) {
pr_warn("Forcibly enabling EC access. Data may be unusable.\n");
superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
}
superio_exit(sioaddr);
pr_info("Found %s or compatible chip at %#x:%#x\n",
nct6683_chip_names[sio_data->kind], sioaddr, addr);
sio_data->sioreg = sioaddr;
return addr;
fail:
superio_exit(sioaddr);
return -ENODEV;
}
static ssize_t
intrusion0_alarm_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6683_data *data = dev_get_drvdata(dev);
unsigned long val;
u8 reg;
int ret;
if (kstrtoul(buf, 10, &val) || val != 0)
return -EINVAL;
mutex_lock(&data->update_lock);
/*
* Use CR registers to clear caseopen status.
* Caseopen is activ low, clear by writing 1 into the register.
*/
ret = superio_enter(data->sioreg);
if (ret) {
count = ret;
goto error;
}
superio_select(data->sioreg, NCT6683_LD_ACPI);
reg = superio_inb(data->sioreg, NCT6683_REG_CR_CASEOPEN);
reg |= NCT6683_CR_CASEOPEN_MASK;
superio_outb(data->sioreg, NCT6683_REG_CR_CASEOPEN, reg);
reg &= ~NCT6683_CR_CASEOPEN_MASK;
superio_outb(data->sioreg, NCT6683_REG_CR_CASEOPEN, reg);
superio_exit(data->sioreg);
data->valid = false; /* Force cache refresh */
error:
mutex_unlock(&data->update_lock);
return count;
}
static int wdt_set_time(unsigned int timeout)
{
int ret;
ret = superio_enter();
if (ret)
return ret;
superio_select(W83627HF_LD_WDT);
superio_outb(cr_wdt_timeout, timeout);
superio_exit();
return 0;
}
static int wdt_set_timeout(int t)
{
unsigned long flags;
if (t < 1 || t > 65535)
return -EINVAL;
timeout = t;
spin_lock_irqsave(&spinlock, flags);
if (test_bit(WDTS_TIMER_RUN, &wdt_status)) {
superio_enter();
superio_select(GPIO);
superio_outb(t>>8, WDTVALMSB);
superio_outb(t, WDTVALLSB);
superio_exit();
}
static int __init qnap_gpio_button_init(void)
{
u16 chip_type;
u8 chip_rev;
unsigned long flags;
int err = -ENODEV;
int tmp;
spin_lock_irqsave(&spinlock, flags);
superio_enter();
chip_type = superio_inw(SIO_CHIP_ID);
chip_rev = superio_inb(SIO_CHIP_REV) & 0x0f;
if (chip_type != SIO_IT8718_ID)
goto exit;
superio_select(SIO_GPIO_LDN);
gpio_base_address = superio_inw(GPIO_ADDR_MSB_REG);
// GP16 GP17
tmp = superio_inb(GPIO_SET1_SEL_REG);
superio_outb(GPIO_SET1_SEL_REG, tmp | 0xc0); //select GPIO Set1 function
tmp = superio_inb(GPIO_SET1_ENABLE_REG);
superio_outb(GPIO_SET1_ENABLE_REG, tmp | 0xc0); //enable simple IO function
tmp = superio_inb(GPIO_SET1_OUTPUT_EN_REG);
superio_outb(GPIO_SET1_OUTPUT_EN_REG, tmp & 0x3f); //enable input direction
superio_outb(GPIO_DBOUNCE_SEL_REG, 0x03); // set De-Bounce
tmp = superio_inb(GPIO_SMI_STATUS_REG);
superio_outb(GPIO_SMI_STATUS_REG, tmp | 0xc0); /* reset panel button de-bounce status */
superio_outb(GPIO_BTN0_MAPPING_REG, 0x4e); /* GP16 = 001110 */
superio_outb(GPIO_BTN1_MAPPING_REG, 0x4f); /* GP17 = 001111 */
err = 0;
exit:
superio_exit();
spin_unlock_irqrestore(&spinlock, flags);
return err;
}
static int f7188x_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
{
int err;
struct f7188x_gpio_bank *bank = gpiochip_get_data(chip);
struct f7188x_sio *sio = bank->data->sio;
u8 dir;
err = superio_enter(sio->addr);
if (err)
return err;
superio_select(sio->addr, SIO_LD_GPIO);
dir = superio_inb(sio->addr, gpio_dir(bank->regbase));
dir &= ~(1 << offset);
superio_outb(sio->addr, gpio_dir(bank->regbase), dir);
superio_exit(sio->addr);
return 0;
}
static void f7188x_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
int err;
struct f7188x_gpio_bank *bank = gpiochip_get_data(chip);
struct f7188x_sio *sio = bank->data->sio;
u8 data_out;
err = superio_enter(sio->addr);
if (err)
return;
superio_select(sio->addr, SIO_LD_GPIO);
data_out = superio_inb(sio->addr, gpio_data_out(bank->regbase));
if (value)
data_out |= (1 << offset);
else
data_out &= ~(1 << offset);
superio_outb(sio->addr, gpio_data_out(bank->regbase), data_out);
superio_exit(sio->addr);
}
static inline u32 pc8736x_gpio_configure_fn(unsigned index, u32 mask, u32 bits,
u32 func_slct)
{
u32 config, new_config;
mutex_lock(&pc8736x_gpio_config_lock);
device_select(SIO_GPIO_UNIT);
select_pin(index);
/* read current config value */
config = superio_inb(func_slct);
/* set new config */
new_config = (config & mask) | bits;
superio_outb(func_slct, new_config);
mutex_unlock(&pc8736x_gpio_config_lock);
return config;
}
static void qnap_timer(unsigned long data)
{
int tmp;
unsigned long flags;
struct input_dev *qnap_input = (struct input_dev *) data;
spin_lock_irqsave(&spinlock, flags);
superio_enter();
superio_select(SIO_GPIO_LDN);
tmp = inb(gpio_base_address);
input_report_key(qnap_input, KEY_ARCHIVE, (tmp & 0x40) >> 6 ); /* USB Copy Button */
input_report_key(qnap_input, KEY_RESTART, (tmp & 0x80) >> 7 ); /* RESET Button */
input_sync(qnap_input);
superio_outb(GPIO_SMI_STATUS_REG, tmp | 0xc0);
superio_exit();
spin_unlock_irqrestore(&spinlock, flags);
}
static int w83627hf_init(struct watchdog_device *wdog, enum chips chip)
{
int ret;
unsigned char t;
ret = superio_enter();
if (ret)
return ret;
superio_select(W83627HF_LD_WDT);
/* set CR30 bit 0 to activate GPIO2 */
t = superio_inb(0x30);
if (!(t & 0x01))
superio_outb(0x30, t | 0x01);
switch (chip) {
case w83627hf:
case w83627s:
t = superio_inb(0x2B) & ~0x10;
superio_outb(0x2B, t); /* set GPIO24 to WDT0 */
break;
case w83697hf:
/* Set pin 119 to WDTO# mode (= CR29, WDT0) */
t = superio_inb(0x29) & ~0x60;
t |= 0x20;
superio_outb(0x29, t);
break;
case w83697ug:
/* Set pin 118 to WDTO# mode */
t = superio_inb(0x2b) & ~0x04;
superio_outb(0x2b, t);
break;
case w83627thf:
t = (superio_inb(0x2B) & ~0x08) | 0x04;
superio_outb(0x2B, t); /* set GPIO3 to WDT0 */
break;
case w83627dhg:
case w83627dhg_p:
t = superio_inb(0x2D) & ~0x01; /* PIN77 -> WDT0# */
superio_outb(0x2D, t); /* set GPIO5 to WDT0 */
t = superio_inb(cr_wdt_control);
t |= 0x02; /* enable the WDTO# output low pulse
* to the KBRST# pin */
superio_outb(cr_wdt_control, t);
break;
case w83637hf:
break;
case w83687thf:
t = superio_inb(0x2C) & ~0x80; /* PIN47 -> WDT0# */
superio_outb(0x2C, t);
break;
case w83627ehf:
case w83627uhg:
case w83667hg:
case w83667hg_b:
case nct6775:
case nct6776:
case nct6779:
/*
* These chips have a fixed WDTO# output pin (W83627UHG),
* or support more than one WDTO# output pin.
* Don't touch its configuration, and hope the BIOS
* does the right thing.
*/
t = superio_inb(cr_wdt_control);
t |= 0x02; /* enable the WDTO# output low pulse
* to the KBRST# pin */
superio_outb(cr_wdt_control, t);
break;
default:
break;
}
t = superio_inb(cr_wdt_timeout);
if (t != 0) {
pr_info("Watchdog already running. Resetting timeout to %d sec\n",
wdog->timeout);
superio_outb(cr_wdt_timeout, wdog->timeout);
}
/* set second mode & disable keyboard turning off watchdog */
t = superio_inb(cr_wdt_control) & ~0x0C;
superio_outb(cr_wdt_control, t);
/* reset trigger, disable keyboard & mouse turning off watchdog */
t = superio_inb(0xF7) & ~0xD0;
superio_outb(0xF7, t);
superio_exit();
return 0;
}
static void device_select(unsigned devldn)
{
superio_outb(SIO_UNIT_SEL, devldn);
selected_device = devldn;
}
static void superio_select(int ld)
{
superio_outb(NCT_LD_SELECT_REG, ld);
}
static int __init pc87427_device_add(unsigned short address)
{
struct resource res = {
.start = address,
.end = address + REGION_LENGTH - 1,
.name = logdev_str[0],
.flags = IORESOURCE_IO,
};
int err;
err = acpi_check_resource_conflict(&res);
if (err)
goto exit;
pdev = platform_device_alloc(DRVNAME, address);
if (!pdev) {
err = -ENOMEM;
printk(KERN_ERR DRVNAME ": Device allocation failed\n");
goto exit;
}
err = platform_device_add_resources(pdev, &res, 1);
if (err) {
printk(KERN_ERR DRVNAME ": Device resource addition failed "
"(%d)\n", err);
goto exit_device_put;
}
err = platform_device_add(pdev);
if (err) {
printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
err);
goto exit_device_put;
}
return 0;
exit_device_put:
platform_device_put(pdev);
exit:
return err;
}
static int __init pc87427_find(int sioaddr, unsigned short *address)
{
u16 val;
int i, err = 0;
/* Identify device */
val = force_id ? force_id : superio_inb(sioaddr, SIOREG_DEVID);
if (val != 0xf2) { /* PC87427 */
err = -ENODEV;
goto exit;
}
for (i = 0; i < 2; i++) {
address[i] = 0;
/* Select logical device */
superio_outb(sioaddr, SIOREG_LDSEL, logdev[i]);
val = superio_inb(sioaddr, SIOREG_ACT);
if (!(val & 0x01)) {
printk(KERN_INFO DRVNAME ": Logical device 0x%02x "
"not activated\n", logdev[i]);
continue;
}
val = superio_inb(sioaddr, SIOREG_MAP);
if (val & 0x01) {
printk(KERN_WARNING DRVNAME ": Logical device 0x%02x "
"is memory-mapped, can't use\n", logdev[i]);
continue;
}
val = (superio_inb(sioaddr, SIOREG_IOBASE) << 8)
| superio_inb(sioaddr, SIOREG_IOBASE + 1);
if (!val) {
printk(KERN_INFO DRVNAME ": I/O base address not set "
"for logical device 0x%02x\n", logdev[i]);
continue;
}
address[i] = val;
}
exit:
superio_exit(sioaddr);
return err;
}
static void superio_select(int ld)
{
superio_outb(0x07, ld);
}