#define PROC_INTERFACE_VERSION 1
#include <linux/compiler.h>
+#include <linux/dmi.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
MODULE_LICENSE("GPL");
+int turn_on_panel_on_resume = -1;
+module_param(turn_on_panel_on_resume, int, 0644);
+MODULE_PARM_DESC(turn_on_panel_on_resume,
+ "Call HCI_PANEL_POWER_ON on resume (-1 = auto, 0 = no, 1 = yes");
+
#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
/* Scan code for Fn key on TOS1900 models */
#define TOS_NOT_INSTALLED 0x8e00
/* Registers */
+#define HCI_PANEL_POWER_ON 0x0002
#define HCI_FAN 0x0004
#define HCI_TR_BACKLIGHT 0x0005
#define HCI_SYSTEM_EVENT 0x0016
return NULL;
}
+/*
+ * Some Toshibas have a broken acpi-video interface for brightness control,
+ * these are quirked in drivers/acpi/video_detect.c to use the GPU native
+ * (/sys/class/backlight/intel_backlight) instead.
+ * But these need a HCI_SET call to actually turn the panel back on at resume,
+ * without this call the screen stays black at resume.
+ * Either HCI_LCD_BRIGHTNESS (used by acpi_video's _BCM) or HCI_PANEL_POWER_ON
+ * works. toshiba_acpi_resume() uses HCI_PANEL_POWER_ON to avoid changing
+ * the configured brightness level.
+ */
+static const struct dmi_system_id turn_on_panel_on_resume_dmi_ids[] = {
+ {
+ /* Toshiba Portégé R700 */
+ /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
+ },
+ },
+ {
+ /* Toshiba Satellite/Portégé R830 */
+ /* Portégé: https://bugs.freedesktop.org/show_bug.cgi?id=82634 */
+ /* Satellite: https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "R830"),
+ },
+ },
+ {
+ /* Toshiba Satellite/Portégé Z830 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Z830"),
+ },
+ },
+};
+
static int toshiba_acpi_add(struct acpi_device *acpi_dev)
{
struct toshiba_acpi_dev *dev;
}
#endif
+ if (turn_on_panel_on_resume == -1)
+ turn_on_panel_on_resume = dmi_check_system(turn_on_panel_on_resume_dmi_ids);
+
toshiba_wwan_available(dev);
if (dev->wwan_supported)
toshiba_acpi_setup_wwan_rfkill(dev);
rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
}
+ if (turn_on_panel_on_resume)
+ hci_write(dev, HCI_PANEL_POWER_ON, 1);
+
return 0;
}
#endif