/* * thinkpad_acpi.h - ThinkPad ACPI Extras * * * Copyright (C) 2004-2005 Borislav Deianov * Copyright (C) 2006-2007 Henrique de Moraes Holschuh * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA. */ #ifndef __THINKPAD_ACPI_H__ #define __THINKPAD_ACPI_H__ #include #include #include #include #include #include #include #include #include #include #include #include #include #include /**************************************************************************** * Main driver */ #define IBM_NAME "thinkpad" #define IBM_DESC "ThinkPad ACPI Extras" #define IBM_FILE "thinkpad_acpi" #define IBM_URL "http://ibm-acpi.sf.net/" #define IBM_DIR "ibm" #define IBM_ACPI_EVENT_PREFIX "ibm" #define IBM_LOG IBM_FILE ": " #define IBM_ERR KERN_ERR IBM_LOG #define IBM_NOTICE KERN_NOTICE IBM_LOG #define IBM_INFO KERN_INFO IBM_LOG #define IBM_DEBUG KERN_DEBUG IBM_LOG #define IBM_MAX_ACPI_ARGS 3 /* ThinkPad CMOS commands */ #define TP_CMOS_VOLUME_DOWN 0 #define TP_CMOS_VOLUME_UP 1 #define TP_CMOS_VOLUME_MUTE 2 #define TP_CMOS_BRIGHTNESS_UP 4 #define TP_CMOS_BRIGHTNESS_DOWN 5 #define onoff(status,bit) ((status) & (1 << (bit)) ? "on" : "off") #define enabled(status,bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") #define strlencmp(a,b) (strncmp((a), (b), strlen(b))) /* ACPI HIDs */ #define IBM_HKEY_HID "IBM0068" #define IBM_PCI_HID "PNP0A03" /* ACPI helpers */ static int acpi_evalf(acpi_handle handle, void *res, char *method, char *fmt, ...); static int acpi_ec_read(int i, u8 * p); static int acpi_ec_write(int i, u8 v); static int _sta(acpi_handle handle); /* ACPI handles */ static acpi_handle root_handle; /* root namespace */ static acpi_handle ec_handle; /* EC */ static acpi_handle ecrd_handle, ecwr_handle; /* 570 EC access */ static acpi_handle cmos_handle, hkey_handle; /* basic thinkpad handles */ static void ibm_handle_init(char *name, acpi_handle * handle, acpi_handle parent, char **paths, int num_paths, char **path); #define IBM_HANDLE_INIT(object) \ ibm_handle_init(#object, &object##_handle, *object##_parent, \ object##_paths, ARRAY_SIZE(object##_paths), &object##_path) /* procfs support */ static struct proc_dir_entry *proc_dir; static int thinkpad_acpi_driver_init(void); static int thinkpad_acpi_driver_read(char *p); /* procfs helpers */ static int dispatch_read(char *page, char **start, off_t off, int count, int *eof, void *data); static int dispatch_write(struct file *file, const char __user * userbuf, unsigned long count, void *data); static char *next_cmd(char **cmds); /* Module */ static int experimental; static char *ibm_thinkpad_ec_found; static char* check_dmi_for_ec(void); static int thinkpad_acpi_module_init(void); static void thinkpad_acpi_module_exit(void); /**************************************************************************** * Subdrivers */ struct ibm_struct { char *name; char param[32]; char *hid; struct acpi_driver *driver; int (*init) (void); int (*read) (char *); int (*write) (char *); void (*exit) (void); void (*notify) (struct ibm_struct *, u32); acpi_handle *handle; int type; struct acpi_device *device; int driver_registered; int proc_created; int init_called; int notify_installed; int experimental; }; static struct ibm_struct ibms[]; static int set_ibm_param(const char *val, struct kernel_param *kp); static int ibm_init(struct ibm_struct *ibm); static void ibm_exit(struct ibm_struct *ibm); /* ACPI devices */ static void dispatch_notify(acpi_handle handle, u32 event, void *data); static int setup_notify(struct ibm_struct *ibm); static int ibm_device_add(struct acpi_device *device); static int register_tpacpi_subdriver(struct ibm_struct *ibm); /* * Bay subdriver */ #ifdef CONFIG_THINKPAD_ACPI_BAY static int bay_status_supported, bay_eject_supported; static int bay_status2_supported, bay_eject2_supported; static acpi_handle bay_handle, bay_ej_handle; static acpi_handle bay2_handle, bay2_ej_handle; static int bay_init(void); static void bay_notify(struct ibm_struct *ibm, u32 event); static int bay_read(char *p); static int bay_write(char *buf); #endif /* CONFIG_THINKPAD_ACPI_BAY */ /* * Beep subdriver */ static acpi_handle beep_handle; static int beep_read(char *p); static int beep_write(char *buf); /* * Bluetooth subdriver */ static int bluetooth_supported; static int bluetooth_init(void); static int bluetooth_status(void); static int bluetooth_read(char *p); static int bluetooth_write(char *buf); /* * Brightness (backlight) subdriver */ static struct backlight_device *ibm_backlight_device; static int brightness_offset = 0x31; static int brightness_init(void); static void brightness_exit(void); static int brightness_get(struct backlight_device *bd); static int brightness_set(int value); static int brightness_update_status(struct backlight_device *bd); static int brightness_read(char *p); static int brightness_write(char *buf); /* * CMOS subdriver */ static int cmos_eval(int cmos_cmd); static int cmos_read(char *p); static int cmos_write(char *buf); /* * Dock subdriver */ static acpi_handle pci_handle; #ifdef CONFIG_THINKPAD_ACPI_DOCK static acpi_handle dock_handle; static void dock_notify(struct ibm_struct *ibm, u32 event); static int dock_read(char *p); static int dock_write(char *buf); #endif /* CONFIG_THINKPAD_ACPI_DOCK */ /* * EC dump subdriver */ static int ecdump_read(char *p) ; static int ecdump_write(char *buf); /* * Fan subdriver */ enum { /* Fan control constants */ fan_status_offset = 0x2f, /* EC register 0x2f */ fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) * 0x84 must be read before 0x85 */ IBMACPI_FAN_EC_DISENGAGED = 0x40, /* EC mode: tachometer * disengaged */ IBMACPI_FAN_EC_AUTO = 0x80, /* EC mode: auto fan * control */ }; enum fan_status_access_mode { IBMACPI_FAN_NONE = 0, /* No fan status or control */ IBMACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ IBMACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ }; enum fan_control_access_mode { IBMACPI_FAN_WR_NONE = 0, /* No fan control */ IBMACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ IBMACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ IBMACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ }; enum fan_control_commands { IBMACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ IBMACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ IBMACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, * and also watchdog cmd */ }; static enum fan_status_access_mode fan_status_access_mode; static enum fan_control_access_mode fan_control_access_mode; static enum fan_control_commands fan_control_commands; static int fan_control_status_known; static u8 fan_control_initial_status; static int fan_watchdog_maxinterval; static acpi_handle fans_handle, gfan_handle, sfan_handle; static int fan_init(void); static void fan_exit(void); static int fan_get_status(u8 *status); static int fan_get_speed(unsigned int *speed); static void fan_watchdog_fire(struct work_struct *ignored); static void fan_watchdog_reset(void); static int fan_set_level(int level); static int fan_set_enable(void); static int fan_set_disable(void); static int fan_set_speed(int speed); static int fan_read(char *p); static int fan_write(char *buf); static int fan_write_cmd_level(const char *cmd, int *rc); static int fan_write_cmd_enable(const char *cmd, int *rc); static int fan_write_cmd_disable(const char *cmd, int *rc); static int fan_write_cmd_speed(const char *cmd, int *rc); static int fan_write_cmd_watchdog(const char *cmd, int *rc); /* * Hotkey subdriver */ static int hotkey_supported; static int hotkey_mask_supported; static int hotkey_orig_status; static int hotkey_orig_mask; static int hotkey_init(void); static void hotkey_exit(void); static int hotkey_get(int *status, int *mask); static int hotkey_set(int status, int mask); static void hotkey_notify(struct ibm_struct *ibm, u32 event); static int hotkey_read(char *p); static int hotkey_write(char *buf); /* * LED subdriver */ enum led_access_mode { IBMACPI_LED_NONE = 0, IBMACPI_LED_570, /* 570 */ IBMACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ IBMACPI_LED_NEW, /* all others */ }; enum { /* For IBMACPI_LED_OLD */ IBMACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ IBMACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ IBMACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ }; static enum led_access_mode led_supported; static acpi_handle led_handle; static int led_init(void); static int led_read(char *p); static int led_write(char *buf); /* * Light (thinklight) subdriver */ static int light_supported; static int light_status_supported; static acpi_handle lght_handle, ledb_handle; static int light_init(void); static int light_read(char *p); static int light_write(char *buf); /* * Thermal subdriver */ enum thermal_access_mode { IBMACPI_THERMAL_NONE = 0, /* No thermal support */ IBMACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ IBMACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ IBMACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ IBMACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ }; #define IBMACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ struct ibm_thermal_sensors_struct { s32 temp[IBMACPI_MAX_THERMAL_SENSORS]; }; static int thermal_init(void); static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s); static int thermal_read(char *p); /* * Video subdriver */ enum video_access_mode { IBMACPI_VIDEO_NONE = 0, IBMACPI_VIDEO_570, /* 570 */ IBMACPI_VIDEO_770, /* 600e/x, 770e, 770x */ IBMACPI_VIDEO_NEW, /* all others */ }; static enum video_access_mode video_supported; static int video_orig_autosw; static acpi_handle vid_handle, vid2_handle; static int video_init(void); static void video_exit(void); static int video_status(void); static int video_autosw(void); static int video_switch(void); static int video_switch2(int status); static int video_expand(void); static int video_read(char *p); static int video_write(char *buf); /* * Volume subdriver */ static int volume_offset = 0x30; static int volume_read(char *p); static int volume_write(char *buf); /* * Wan subdriver */ static int wan_supported; static int wan_init(void); static int wan_status(void); static int wan_read(char *p); static int wan_write(char *buf); #endif /* __THINKPAD_ACPI_H */