diff options
Diffstat (limited to 'drivers/platform/x86/toshiba_acpi.c')
| -rw-r--r-- | drivers/platform/x86/toshiba_acpi.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index a8b719f481f9..0f1b7a8ed802 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -155,6 +155,7 @@ MODULE_LICENSE("GPL"); #define SCI_USB_CHARGE_BAT_LVL_OFF 0x1 #define SCI_USB_CHARGE_BAT_LVL_ON 0x4 #define SCI_USB_CHARGE_BAT_LVL 0x0200 +#define SCI_USB_CHARGE_RAPID_DSP 0x0300 struct toshiba_acpi_dev { struct acpi_device *acpi_dev; @@ -188,6 +189,7 @@ struct toshiba_acpi_dev { unsigned int eco_supported:1; unsigned int accelerometer_supported:1; unsigned int usb_sleep_charge_supported:1; + unsigned int usb_rapid_charge_supported:1; unsigned int sysfs_created:1; struct mutex mutex; @@ -873,6 +875,60 @@ static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev, return 0; } +static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev, + u32 *state) +{ + u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; + u32 out[TCI_WORDS]; + acpi_status status; + + if (!sci_open(dev)) + return -EIO; + + in[5] = SCI_USB_CHARGE_RAPID_DSP; + status = tci_raw(dev, in, out); + sci_close(dev); + if (ACPI_FAILURE(status) || out[0] == TOS_FAILURE) { + pr_err("ACPI call to get USB S&C battery level failed\n"); + return -EIO; + } else if (out[0] == TOS_NOT_SUPPORTED || + out[0] == TOS_INPUT_DATA_ERROR) { + pr_info("USB Sleep and Charge not supported\n"); + return -ENODEV; + } + + *state = out[2]; + + return 0; +} + +static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev, + u32 state) +{ + u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; + u32 out[TCI_WORDS]; + acpi_status status; + + if (!sci_open(dev)) + return -EIO; + + in[2] = state; + in[5] = SCI_USB_CHARGE_RAPID_DSP; + status = tci_raw(dev, in, out); + sci_close(dev); + if (ACPI_FAILURE(status) || out[0] == TOS_FAILURE) { + pr_err("ACPI call to set USB S&C battery level failed\n"); + return -EIO; + } else if (out[0] == TOS_NOT_SUPPORTED) { + pr_info("USB Sleep and Charge not supported\n"); + return -ENODEV; + } else if (out[0] == TOS_INPUT_DATA_ERROR) { + return -EIO; + } + + return 0; +} + /* Bluetooth rfkill handlers */ static u32 hci_get_bt_present(struct toshiba_acpi_dev *dev, bool *present) @@ -1438,6 +1494,12 @@ static ssize_t sleep_functions_on_battery_show(struct device *dev, static ssize_t sleep_functions_on_battery_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count); +static ssize_t toshiba_usb_rapid_charge_show(struct device *dev, + struct device_attribute *attr, + char *buf); +static ssize_t toshiba_usb_rapid_charge_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count); static DEVICE_ATTR(kbd_backlight_mode, S_IRUGO | S_IWUSR, toshiba_kbd_bl_mode_show, toshiba_kbd_bl_mode_store); @@ -1455,6 +1517,9 @@ static DEVICE_ATTR(usb_sleep_charge, S_IRUGO | S_IWUSR, static DEVICE_ATTR(sleep_functions_on_battery, S_IRUGO | S_IWUSR, sleep_functions_on_battery_show, sleep_functions_on_battery_store); +static DEVICE_ATTR(usb_rapid_charge, S_IRUGO | S_IWUSR, + toshiba_usb_rapid_charge_show, + toshiba_usb_rapid_charge_store); static struct attribute *toshiba_attributes[] = { &dev_attr_kbd_backlight_mode.attr, @@ -1465,6 +1530,7 @@ static struct attribute *toshiba_attributes[] = { &dev_attr_position.attr, &dev_attr_usb_sleep_charge.attr, &dev_attr_sleep_functions_on_battery.attr, + &dev_attr_usb_rapid_charge.attr, NULL, }; @@ -1793,6 +1859,42 @@ static ssize_t sleep_functions_on_battery_store(struct device *dev, return count; } +static ssize_t toshiba_usb_rapid_charge_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); + u32 state; + int ret; + + ret = toshiba_usb_rapid_charge_get(toshiba, &state); + if (ret < 0) + return ret; + + return sprintf(buf, "%d\n", state); +} + +static ssize_t toshiba_usb_rapid_charge_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); + int state; + int ret; + + ret = kstrtoint(buf, 0, &state); + if (ret) + return ret; + if (state != 0 && state != 1) + return -EINVAL; + + ret = toshiba_usb_rapid_charge_set(toshiba, state); + if (ret) + return ret; + + return count; +} + static umode_t toshiba_sysfs_is_visible(struct kobject *kobj, struct attribute *attr, int idx) { @@ -1812,6 +1914,8 @@ static umode_t toshiba_sysfs_is_visible(struct kobject *kobj, exists = (drv->usb_sleep_charge_supported) ? true : false; else if (attr == &dev_attr_sleep_functions_on_battery.attr) exists = (drv->usb_sleep_charge_supported) ? true : false; + else if (attr == &dev_attr_usb_rapid_charge.attr) + exists = (drv->usb_rapid_charge_supported) ? true : false; return exists ? attr->mode : 0; } @@ -2224,6 +2328,9 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev) ret = toshiba_usb_sleep_charge_get(dev, &dummy); dev->usb_sleep_charge_supported = !ret; + ret = toshiba_usb_rapid_charge_get(dev, &dummy); + dev->usb_rapid_charge_supported = !ret; + /* Determine whether or not BIOS supports fan and video interfaces */ ret = get_video_status(dev, &dummy); |
