| /* |
| * thinkpad_acpi.h - ThinkPad ACPI Extras |
| * |
| * |
| * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
| * Copyright (C) 2006-2007 Henrique de Moraes Holschuh <hmh@hmh.eng.br> |
| * |
| * 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 <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/types.h> |
| #include <linux/string.h> |
| |
| #include <linux/proc_fs.h> |
| #include <linux/backlight.h> |
| #include <linux/fb.h> |
| #include <asm/uaccess.h> |
| |
| #include <linux/dmi.h> |
| #include <linux/jiffies.h> |
| #include <linux/workqueue.h> |
| |
| #include <acpi/acpi_drivers.h> |
| #include <acpi/acnamesp.h> |
| |
| |
| /**************************************************************************** |
| * 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 acpi_ibm_init(void); |
| static void acpi_ibm_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_ibmacpi_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 */ |