From 837ca6ddb440c186eaa8e01b69486581d3457f2c Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Fri, 23 Mar 2007 17:33:54 -0300 Subject: ACPI: ibm-acpi: kill trailing whitespace I shall protect the ibm-acpi city against the invasion of the barbarian blanks! To the unforgiving jaws of sed s/[[:blank:]]\+$// they go! Signed-off-by: Henrique de Moraes Holschuh Signed-off-by: Len Brown --- drivers/acpi/ibm_acpi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c index dc10966..60aaed9 100644 --- a/drivers/acpi/ibm_acpi.c +++ b/drivers/acpi/ibm_acpi.c @@ -28,7 +28,7 @@ * 2006-11-22 0.13 new maintainer * changelog now lives in git commit history, and will * not be updated further in-file. - * + * * 2005-08-17 0.12 fix compilation on 2.6.13-rc kernels * 2005-03-17 0.11 support for 600e, 770x * thanks to Jamie Lentin @@ -38,7 +38,7 @@ * experimental brightness control * experimental volume control * experimental fan enable/disable - * 2005-01-16 0.10 fix module loading on R30, R31 + * 2005-01-16 0.10 fix module loading on R30, R31 * 2005-01-16 0.9 support for 570, R30, R31 * ultrabay support on A22p, A3x * limit arg for cmos, led, beep, drop experimental status @@ -161,7 +161,7 @@ IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ #ifdef CONFIG_ACPI_IBM_BAY IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ - "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ + "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ ); /* A21e, R30, R31 */ -- cgit v1.1 From e062e0343871a41e8ec408f1c1e8ac3b0310da9d Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Fri, 23 Mar 2007 17:33:55 -0300 Subject: ACPI: ibm-acpi: rename some identifiers Rename some identifiers so that they are more in tune with the rest of the driver code, or less generic. Signed-off-by: Henrique de Moraes Holschuh Signed-off-by: Len Brown --- drivers/acpi/ibm_acpi.c | 43 ++++++++++++++++++++++++------------------- 1 file changed, 24 insertions(+), 19 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c index 60aaed9..41c46b0 100644 --- a/drivers/acpi/ibm_acpi.c +++ b/drivers/acpi/ibm_acpi.c @@ -506,7 +506,7 @@ static int ibm_acpi_driver_init(void) return 0; } -static int driver_read(char *p) +static int ibm_acpi_driver_read(char *p) { int len = 0; @@ -1310,9 +1310,9 @@ static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; -#define EC_HLCL 0x0c -#define EC_HLBL 0x0d -#define EC_HLMS 0x0e +#define IBMACPI_LED_EC_HLCL 0x0c +#define IBMACPI_LED_EC_HLBL 0x0d +#define IBMACPI_LED_EC_HLMS 0x0e static int led_write(char *buf) { @@ -1344,13 +1344,15 @@ static int led_write(char *buf) } else if (led_supported == IBMACPI_LED_OLD) { /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ led = 1 << led; - ret = ec_write(EC_HLMS, led); + ret = ec_write(IBMACPI_LED_EC_HLMS, led); if (ret >= 0) ret = - ec_write(EC_HLBL, led * led_exp_hlbl[ind]); + ec_write(IBMACPI_LED_EC_HLBL, + led * led_exp_hlbl[ind]); if (ret >= 0) ret = - ec_write(EC_HLCL, led * led_exp_hlcl[ind]); + ec_write(IBMACPI_LED_EC_HLCL, + led * led_exp_hlcl[ind]); if (ret < 0) return ret; } else { @@ -1657,8 +1659,8 @@ static int brightness_read(char *p) return len; } -#define BRIGHTNESS_UP 4 -#define BRIGHTNESS_DOWN 5 +#define TP_CMOS_BRIGHTNESS_UP 4 +#define TP_CMOS_BRIGHTNESS_DOWN 5 static int brightness_set(int value) { @@ -1667,7 +1669,8 @@ static int brightness_set(int value) value &= 7; - cmos_cmd = value > current_value ? BRIGHTNESS_UP : BRIGHTNESS_DOWN; + cmos_cmd = value > current_value ? + TP_CMOS_BRIGHTNESS_UP : TP_CMOS_BRIGHTNESS_DOWN; inc = value > current_value ? 1 : -1; for (i = current_value; i != value; i += inc) { if (!cmos_eval(cmos_cmd)) @@ -1769,9 +1772,9 @@ static int volume_read(char *p) return len; } -#define VOLUME_DOWN 0 -#define VOLUME_UP 1 -#define VOLUME_MUTE 2 +#define TP_CMOS_VOLUME_DOWN 0 +#define TP_CMOS_VOLUME_UP 1 +#define TP_CMOS_VOLUME_MUTE 2 static int volume_write(char *buf) { @@ -1805,7 +1808,8 @@ static int volume_write(char *buf) return -EINVAL; if (new_level != level) { /* mute doesn't change */ - cmos_cmd = new_level > level ? VOLUME_UP : VOLUME_DOWN; + cmos_cmd = new_level > level ? + TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; inc = new_level > level ? 1 : -1; if (mute && (!cmos_eval(cmos_cmd) || @@ -1817,14 +1821,15 @@ static int volume_write(char *buf) !acpi_ec_write(volume_offset, i + inc)) return -EIO; - if (mute && (!cmos_eval(VOLUME_MUTE) || + if (mute && (!cmos_eval(TP_CMOS_VOLUME_MUTE) || !acpi_ec_write(volume_offset, new_level + mute))) return -EIO; } if (new_mute != mute) { /* level doesn't change */ - cmos_cmd = new_mute ? VOLUME_MUTE : VOLUME_UP; + cmos_cmd = new_mute ? + TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; if (!cmos_eval(cmos_cmd) || !acpi_ec_write(volume_offset, level + new_mute)) @@ -2315,7 +2320,7 @@ static struct ibm_struct ibms[] = { { .name = "driver", .init = ibm_acpi_driver_init, - .read = driver_read, + .read = ibm_acpi_driver_read, }, { .name = "hotkey", @@ -2534,7 +2539,7 @@ static int __init ibm_device_add(struct acpi_device *device) return 0; } -static int __init register_driver(struct ibm_struct *ibm) +static int __init register_ibmacpi_subdriver(struct ibm_struct *ibm) { int ret; @@ -2569,7 +2574,7 @@ static int __init ibm_init(struct ibm_struct *ibm) return 0; if (ibm->hid) { - ret = register_driver(ibm); + ret = register_ibmacpi_subdriver(ibm); if (ret < 0) return ret; ibm->driver_registered = 1; -- cgit v1.1 From 1406cdd1760743106278c1f02a0f445159c8f400 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Fri, 23 Mar 2007 17:33:56 -0300 Subject: ACPI: ibm-acpi: add header file Add a (private) header file for ibm-acpi, and move type definitions and ThinkPad driver constants to the new header file. This patch has no functional changes. Signed-off-by: Henrique de Moraes Holschuh Signed-off-by: Len Brown --- drivers/acpi/ibm_acpi.c | 139 +-------------- drivers/acpi/ibm_acpi.h | 437 ++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 438 insertions(+), 138 deletions(-) create mode 100644 drivers/acpi/ibm_acpi.h (limited to 'drivers/acpi') diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c index 41c46b0..e2da954 100644 --- a/drivers/acpi/ibm_acpi.c +++ b/drivers/acpi/ibm_acpi.c @@ -78,44 +78,13 @@ * 2004-08-09 0.1 initial release, support for X series */ -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -#include -#include -#include - -#include -#include - -#define IBM_NAME "ibm" -#define IBM_DESC "IBM ThinkPad ACPI Extras" -#define IBM_FILE "ibm_acpi" -#define IBM_URL "http://ibm-acpi.sf.net/" +#include "ibm_acpi.h" MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); MODULE_DESCRIPTION(IBM_DESC); MODULE_VERSION(IBM_VERSION); MODULE_LICENSE("GPL"); -#define IBM_DIR IBM_NAME - -#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 - #define __unused __attribute__ ((unused)) static int experimental; @@ -207,22 +176,6 @@ IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ "JFNS", /* 770x-JL */ ); /* all others */ -#define IBM_HKEY_HID "IBM0068" -#define IBM_PCI_HID "PNP0A03" - -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]; -}; - /* * FAN ACCESS MODES * @@ -323,72 +276,12 @@ struct ibm_thermal_sensors_struct { * but the ACPI tables just mention level 7. */ -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 */ -}; - -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 */ -}; - static char *ibm_thinkpad_ec_found = NULL; -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 proc_dir_entry *proc_dir = NULL; static struct backlight_device *ibm_backlight_device = NULL; -#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))) - static int acpi_evalf(acpi_handle handle, void *res, char *method, char *fmt, ...) { @@ -775,13 +668,6 @@ static int wan_write(char *buf) return 0; } -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; @@ -1248,12 +1134,6 @@ static int cmos_write(char *buf) return 0; } -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 */ -}; static enum led_access_mode led_supported; static int led_init(void) @@ -1310,10 +1190,6 @@ static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; -#define IBMACPI_LED_EC_HLCL 0x0c -#define IBMACPI_LED_EC_HLBL 0x0d -#define IBMACPI_LED_EC_HLMS 0x0e - static int led_write(char *buf) { char *cmd; @@ -1629,8 +1505,6 @@ static int ecdump_write(char *buf) return 0; } -static int brightness_offset = 0x31; - static int brightness_get(struct backlight_device *bd) { u8 level; @@ -1659,9 +1533,6 @@ static int brightness_read(char *p) return len; } -#define TP_CMOS_BRIGHTNESS_UP 4 -#define TP_CMOS_BRIGHTNESS_DOWN 5 - static int brightness_set(int value) { int cmos_cmd, inc, i; @@ -1752,8 +1623,6 @@ static void brightness_exit(void) } } -static int volume_offset = 0x30; - static int volume_read(char *p) { int len = 0; @@ -1772,10 +1641,6 @@ static int volume_read(char *p) return len; } -#define TP_CMOS_VOLUME_DOWN 0 -#define TP_CMOS_VOLUME_UP 1 -#define TP_CMOS_VOLUME_MUTE 2 - static int volume_write(char *buf) { int cmos_cmd, inc, i; @@ -2563,8 +2428,6 @@ static int __init register_ibmacpi_subdriver(struct ibm_struct *ibm) return ret; } -static void ibm_exit(struct ibm_struct *ibm); - static int __init ibm_init(struct ibm_struct *ibm) { int ret; diff --git a/drivers/acpi/ibm_acpi.h b/drivers/acpi/ibm_acpi.h new file mode 100644 index 0000000..7ebaaa4 --- /dev/null +++ b/drivers/acpi/ibm_acpi.h @@ -0,0 +1,437 @@ +/* + * ibm_acpi.h - IBM 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 __IBM_ACPI_H__ +#define __IBM_ACPI_H__ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include +#include + +#include +#include + + +/**************************************************************************** + * Main driver + */ + +#define IBM_NAME "ibm" +#define IBM_DESC "IBM ThinkPad ACPI Extras" +#define IBM_FILE "ibm_acpi" +#define IBM_URL "http://ibm-acpi.sf.net/" + +#define IBM_DIR IBM_NAME + +#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 ibm_acpi_driver_init(void); +static int ibm_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_ACPI_IBM_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_ACPI_IBM_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_ACPI_IBM_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_ACPI_IBM_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 /* __IBM_ACPI_H */ -- cgit v1.1 From 56b6aeb05890f219895197f5166637b3d7a6f679 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Fri, 23 Mar 2007 17:33:57 -0300 Subject: ACPI: ibm-acpi: organize code Shuffle code around to better organize the driver code inside the ibm-acpi.c file. This patch adds no functional changes. It is pure fluff that will make me a bit more productive. Signed-off-by: Henrique de Moraes Holschuh Signed-off-by: Len Brown --- drivers/acpi/ibm_acpi.c | 1476 +++++++++++++++++++++++++---------------------- 1 file changed, 796 insertions(+), 680 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c index e2da954..984ec81 100644 --- a/drivers/acpi/ibm_acpi.c +++ b/drivers/acpi/ibm_acpi.c @@ -87,8 +87,17 @@ MODULE_LICENSE("GPL"); #define __unused __attribute__ ((unused)) -static int experimental; -module_param(experimental, int, 0); +/**************************************************************************** + **************************************************************************** + * + * ACPI Helpers and device model + * + **************************************************************************** + ****************************************************************************/ + +/************************************************************************* + * ACPI basic handles + */ static acpi_handle root_handle = NULL; @@ -105,183 +114,31 @@ IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ "\\_SB.PCI0.ICH3.EC0", /* R31 */ "\\_SB.PCI0.LPC.EC", /* all others */ - ); + ); -IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ - "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ - "\\_SB.PCI0.VID0", /* 770e */ - "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ - "\\_SB.PCI0.AGP.VID", /* all others */ - ); /* R30, R31 */ +IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */ +IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */ -IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ + +/************************************************************************* + * Misc ACPI handles + */ IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */ "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ "\\CMS", /* R40, R40e */ - ); /* all others */ -#ifdef CONFIG_ACPI_IBM_DOCK -IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ - "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ - "\\_SB.PCI0.PCI1.DOCK", /* all others */ - "\\_SB.PCI.ISA.SLCE", /* 570 */ - ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ -#endif -#ifdef CONFIG_ACPI_IBM_BAY -IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ - "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ - "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ - "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ - ); /* A21e, R30, R31 */ - -IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ - "_EJ0", /* all others */ - ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ - -IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ - "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ - ); /* all others */ - -IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ - "_EJ0", /* 770x */ - ); /* all others */ -#endif /* CONFIG_ACPI_IBM_BAY */ - -/* don't list other alternatives as we install a notify handler on the 570 */ -IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ + ); /* all others */ IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ "^HKEY", /* R30, R31 */ "HKEY", /* all others */ - ); /* 570 */ + ); /* 570 */ -IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ -IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ -IBM_HANDLE(led, ec, "SLED", /* 570 */ - "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ - "LED", /* all others */ - ); /* R30, R31 */ - -IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ -IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */ -IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */ -IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ - -IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ - "\\FSPD", /* 600e/x, 770e, 770x */ - ); /* all others */ - -IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ - "JFNS", /* 770x-JL */ - ); /* all others */ - -/* - * FAN ACCESS MODES - * - * IBMACPI_FAN_RD_ACPI_GFAN: - * ACPI GFAN method: returns fan level - * - * see IBMACPI_FAN_WR_ACPI_SFAN - * EC 0x2f not available if GFAN exists - * - * IBMACPI_FAN_WR_ACPI_SFAN: - * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) - * - * EC 0x2f might be available *for reading*, but never for writing. - * - * IBMACPI_FAN_WR_TPEC: - * ThinkPad EC register 0x2f (HFSP): fan control loop mode Supported - * on almost all ThinkPads - * - * Fan speed changes of any sort (including those caused by the - * disengaged mode) are usually done slowly by the firmware as the - * maximum ammount of fan duty cycle change per second seems to be - * limited. - * - * Reading is not available if GFAN exists. - * Writing is not available if SFAN exists. - * - * Bits - * 7 automatic mode engaged; - * (default operation mode of the ThinkPad) - * fan level is ignored in this mode. - * 6 disengage mode (takes precedence over bit 7); - * not available on all thinkpads. May disable - * the tachometer, and speeds up fan to 100% duty-cycle, - * which speeds it up far above the standard RPM - * levels. It is not impossible that it could cause - * hardware damage. - * 5-3 unused in some models. Extra bits for fan level - * in others, but still useless as all values above - * 7 map to the same speed as level 7 in these models. - * 2-0 fan level (0..7 usually) - * 0x00 = stop - * 0x07 = max (set when temperatures critical) - * Some ThinkPads may have other levels, see - * IBMACPI_FAN_WR_ACPI_FANS (X31/X40/X41) - * - * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at - * boot. Apparently the EC does not intialize it, so unless ACPI DSDT - * does so, its initial value is meaningless (0x07). - * - * For firmware bugs, refer to: - * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues - * - * ---- - * - * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): - * Main fan tachometer reading (in RPM) - * - * This register is present on all ThinkPads with a new-style EC, and - * it is known not to be present on the A21m/e, and T22, as there is - * something else in offset 0x84 according to the ACPI DSDT. Other - * ThinkPads from this same time period (and earlier) probably lack the - * tachometer as well. - * - * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare - * was never fixed by IBM to report the EC firmware version string - * probably support the tachometer (like the early X models), so - * detecting it is quite hard. We need more data to know for sure. - * - * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings - * might result. - * - * FIRMWARE BUG: when EC 0x2f bit 6 is set (disengaged mode), this - * register is not invalidated in ThinkPads that disable tachometer - * readings. Thus, the tachometer readings go stale. - * - * For firmware bugs, refer to: - * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues - * - * IBMACPI_FAN_WR_ACPI_FANS: - * ThinkPad X31, X40, X41. Not available in the X60. - * - * FANS ACPI handle: takes three arguments: low speed, medium speed, - * high speed. ACPI DSDT seems to map these three speeds to levels - * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH - * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") - * - * The speeds are stored on handles - * (FANA:FAN9), (FANC:FANB), (FANE:FAND). - * - * There are three default speed sets, acessible as handles: - * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H - * - * ACPI DSDT switches which set is in use depending on various - * factors. - * - * IBMACPI_FAN_WR_TPEC is also available and should be used to - * command the fan. The X31/X40/X41 seems to have 8 fan levels, - * but the ACPI tables just mention level 7. +/************************************************************************* + * ACPI helpers */ -static char *ibm_thinkpad_ec_found = NULL; - -static struct proc_dir_entry *proc_dir = NULL; - -static struct backlight_device *ibm_backlight_device = NULL; - static int acpi_evalf(acpi_handle handle, void *res, char *method, char *fmt, ...) { @@ -354,21 +211,218 @@ static int acpi_evalf(acpi_handle handle, return 0; } - if (!success && !quiet) - printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", - method, fmt0, status); + if (!success && !quiet) + printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", + method, fmt0, status); + + return success; +} + +static void __unused acpi_print_int(acpi_handle handle, char *method) +{ + int i; + + if (acpi_evalf(handle, &i, method, "d")) + printk(IBM_INFO "%s = 0x%x\n", method, i); + else + printk(IBM_ERR "error calling %s\n", method); +} + +static int acpi_ec_read(int i, u8 * p) +{ + int v; + + if (ecrd_handle) { + if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) + return 0; + *p = v; + } else { + if (ec_read(i, p) < 0) + return 0; + } + + return 1; +} + +static int acpi_ec_write(int i, u8 v) +{ + if (ecwr_handle) { + if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) + return 0; + } else { + if (ec_write(i, v) < 0) + return 0; + } + + return 1; +} + +static int _sta(acpi_handle handle) +{ + int status; + + if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) + status = 0; + + return status; +} + +/************************************************************************* + * ACPI device model + */ + +static void __init ibm_handle_init(char *name, + acpi_handle * handle, acpi_handle parent, + char **paths, int num_paths, char **path) +{ + int i; + acpi_status status; + + for (i = 0; i < num_paths; i++) { + status = acpi_get_handle(parent, paths[i], handle); + if (ACPI_SUCCESS(status)) { + *path = paths[i]; + return; + } + } + + *handle = NULL; +} + +static void dispatch_notify(acpi_handle handle, u32 event, void *data) +{ + struct ibm_struct *ibm = data; + + if (!ibm || !ibm->notify) + return; + + ibm->notify(ibm, event); +} + +static int __init setup_notify(struct ibm_struct *ibm) +{ + acpi_status status; + int ret; + + if (!*ibm->handle) + return 0; + + ret = acpi_bus_get_device(*ibm->handle, &ibm->device); + if (ret < 0) { + printk(IBM_ERR "%s device not present\n", ibm->name); + return -ENODEV; + } + + acpi_driver_data(ibm->device) = ibm; + sprintf(acpi_device_class(ibm->device), "%s/%s", IBM_NAME, ibm->name); + + status = acpi_install_notify_handler(*ibm->handle, ibm->type, + dispatch_notify, ibm); + if (ACPI_FAILURE(status)) { + if (status == AE_ALREADY_EXISTS) { + printk(IBM_NOTICE "another device driver is already handling %s events\n", + ibm->name); + } else { + printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n", + ibm->name, status); + } + return -ENODEV; + } + ibm->notify_installed = 1; + return 0; +} + +static int __init ibm_device_add(struct acpi_device *device) +{ + return 0; +} + +static int __init register_ibmacpi_subdriver(struct ibm_struct *ibm) +{ + int ret; + + ibm->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); + if (!ibm->driver) { + printk(IBM_ERR "kmalloc(ibm->driver) failed\n"); + return -1; + } + + sprintf(ibm->driver->name, "%s_%s", IBM_NAME, ibm->name); + ibm->driver->ids = ibm->hid; + ibm->driver->ops.add = &ibm_device_add; + + ret = acpi_bus_register_driver(ibm->driver); + if (ret < 0) { + printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", + ibm->hid, ret); + kfree(ibm->driver); + } + + return ret; +} + + +/**************************************************************************** + **************************************************************************** + * + * Procfs Helpers + * + **************************************************************************** + ****************************************************************************/ + +static int dispatch_read(char *page, char **start, off_t off, int count, + int *eof, void *data) +{ + struct ibm_struct *ibm = data; + int len; + + if (!ibm || !ibm->read) + return -EINVAL; + + len = ibm->read(page); + if (len < 0) + return len; + + if (len <= off + count) + *eof = 1; + *start = page + off; + len -= off; + if (len > count) + len = count; + if (len < 0) + len = 0; + + return len; +} + +static int dispatch_write(struct file *file, const char __user * userbuf, + unsigned long count, void *data) +{ + struct ibm_struct *ibm = data; + char *kernbuf; + int ret; + + if (!ibm || !ibm->write) + return -EINVAL; + + kernbuf = kmalloc(count + 2, GFP_KERNEL); + if (!kernbuf) + return -ENOMEM; - return success; -} + if (copy_from_user(kernbuf, userbuf, count)) { + kfree(kernbuf); + return -EFAULT; + } -static void __unused acpi_print_int(acpi_handle handle, char *method) -{ - int i; + kernbuf[count] = 0; + strcat(kernbuf, ","); + ret = ibm->write(kernbuf); + if (ret == 0) + ret = count; - if (acpi_evalf(handle, &i, method, "d")) - printk(IBM_INFO "%s = 0x%x\n", method, i); - else - printk(IBM_ERR "error calling %s\n", method); + kfree(kernbuf); + + return ret; } static char *next_cmd(char **cmds) @@ -387,6 +441,19 @@ static char *next_cmd(char **cmds) return start; } + +/**************************************************************************** + **************************************************************************** + * + * Subdrivers + * + **************************************************************************** + ****************************************************************************/ + +/************************************************************************* + * ibm-acpi init subdriver + */ + static int ibm_acpi_driver_init(void) { printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); @@ -409,11 +476,51 @@ static int ibm_acpi_driver_read(char *p) return len; } +/************************************************************************* + * 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) +{ + /* hotkey not supported on 570 */ + hotkey_supported = hkey_handle != NULL; + + if (hotkey_supported) { + /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, + A30, R30, R31, T20-22, X20-21, X22-24 */ + hotkey_mask_supported = + acpi_evalf(hkey_handle, NULL, "DHKN", "qv"); + + if (!hotkey_get(&hotkey_orig_status, &hotkey_orig_mask)) + return -ENODEV; + } + + return 0; +} + +static void hotkey_exit(void) +{ + if (hotkey_supported) + hotkey_set(hotkey_orig_status, hotkey_orig_mask); +} + +static void hotkey_notify(struct ibm_struct *ibm, u32 event) +{ + int hkey; + + if (acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) + acpi_bus_generate_event(ibm->device, event, hkey); + else { + printk(IBM_ERR "unknown hotkey event %d\n", event); + acpi_bus_generate_event(ibm->device, event, 0); + } +} + static int hotkey_get(int *status, int *mask) { if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) @@ -444,24 +551,6 @@ static int hotkey_set(int status, int mask) return 1; } -static int hotkey_init(void) -{ - /* hotkey not supported on 570 */ - hotkey_supported = hkey_handle != NULL; - - if (hotkey_supported) { - /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, - A30, R30, R31, T20-22, X20-21, X22-24 */ - hotkey_mask_supported = - acpi_evalf(hkey_handle, NULL, "DHKN", "qv"); - - if (!hotkey_get(&hotkey_orig_status, &hotkey_orig_mask)) - return -ENODEV; - } - - return 0; -} - static int hotkey_read(char *p) { int status, mask; @@ -523,23 +612,9 @@ static int hotkey_write(char *buf) return 0; } -static void hotkey_exit(void) -{ - if (hotkey_supported) - hotkey_set(hotkey_orig_status, hotkey_orig_mask); -} - -static void hotkey_notify(struct ibm_struct *ibm, u32 event) -{ - int hkey; - - if (acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) - acpi_bus_generate_event(ibm->device, event, hkey); - else { - printk(IBM_ERR "unknown hotkey event %d\n", event); - acpi_bus_generate_event(ibm->device, event, 0); - } -} +/************************************************************************* + * Bluetooth subdriver + */ static int bluetooth_supported; @@ -606,6 +681,10 @@ static int bluetooth_write(char *buf) return 0; } +/************************************************************************* + * Wan subdriver + */ + static int wan_supported; static int wan_init(void) @@ -668,9 +747,22 @@ static int wan_write(char *buf) return 0; } +/************************************************************************* + * Video subdriver + */ + static enum video_access_mode video_supported; static int video_orig_autosw; +IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ + "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ + "\\_SB.PCI0.VID0", /* 770e */ + "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ + "\\_SB.PCI0.AGP.VID", /* all others */ + ); /* R30, R31 */ + +IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ + static int video_init(void) { int ivga; @@ -695,6 +787,11 @@ static int video_init(void) return 0; } +static void video_exit(void) +{ + acpi_evalf(vid_handle, NULL, "_DOS", "vd", video_orig_autosw); +} + static int video_status(void) { int status = 0; @@ -736,33 +833,6 @@ static int video_autosw(void) return autosw & 1; } -static int video_read(char *p) -{ - int status = video_status(); - int autosw = video_autosw(); - int len = 0; - - if (!video_supported) { - len += sprintf(p + len, "status:\t\tnot supported\n"); - return len; - } - - len += sprintf(p + len, "status:\t\tsupported\n"); - len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); - len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); - if (video_supported == IBMACPI_VIDEO_NEW) - len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); - len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); - len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); - len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); - if (video_supported == IBMACPI_VIDEO_NEW) - len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); - len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); - len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); - - return len; -} - static int video_switch(void) { int autosw = video_autosw(); @@ -812,6 +882,33 @@ static int video_switch2(int status) return ret; } +static int video_read(char *p) +{ + int status = video_status(); + int autosw = video_autosw(); + int len = 0; + + if (!video_supported) { + len += sprintf(p + len, "status:\t\tnot supported\n"); + return len; + } + + len += sprintf(p + len, "status:\t\tsupported\n"); + len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); + len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); + if (video_supported == IBMACPI_VIDEO_NEW) + len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); + len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); + len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); + len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); + if (video_supported == IBMACPI_VIDEO_NEW) + len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); + len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); + len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); + + return len; +} + static int video_write(char *buf) { char *cmd; @@ -862,14 +959,16 @@ static int video_write(char *buf) return 0; } -static void video_exit(void) -{ - acpi_evalf(vid_handle, NULL, "_DOS", "vd", video_orig_autosw); -} +/************************************************************************* + * Light (thinklight) subdriver + */ static int light_supported; static int light_status_supported; +IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ +IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ + static int light_init(void) { /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ @@ -933,21 +1032,45 @@ static int light_write(char *buf) return 0; } -#if defined(CONFIG_ACPI_IBM_DOCK) || defined(CONFIG_ACPI_IBM_BAY) -static int _sta(acpi_handle handle) -{ - int status; - - if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) - status = 0; +/************************************************************************* + * Dock subdriver + */ - return status; -} -#endif +/* don't list other alternatives as we install a notify handler on the 570 */ +IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ #ifdef CONFIG_ACPI_IBM_DOCK + +IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ + "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ + "\\_SB.PCI0.PCI1.DOCK", /* all others */ + "\\_SB.PCI.ISA.SLCE", /* 570 */ + ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ + #define dock_docked() (_sta(dock_handle) & 1) +static void dock_notify(struct ibm_struct *ibm, u32 event) +{ + int docked = dock_docked(); + int pci = ibm->hid && strstr(ibm->hid, IBM_PCI_HID); + + if (event == 1 && !pci) /* 570 */ + acpi_bus_generate_event(ibm->device, event, 1); /* button */ + else if (event == 1 && pci) /* 570 */ + acpi_bus_generate_event(ibm->device, event, 3); /* dock */ + else if (event == 3 && docked) + acpi_bus_generate_event(ibm->device, event, 1); /* button */ + else if (event == 3 && !docked) + acpi_bus_generate_event(ibm->device, event, 2); /* undock */ + else if (event == 0 && docked) + acpi_bus_generate_event(ibm->device, event, 3); /* dock */ + else { + printk(IBM_ERR "unknown dock event %d, status %d\n", + event, _sta(dock_handle)); + acpi_bus_generate_event(ibm->device, event, 0); /* unknown */ + } +} + static int dock_read(char *p) { int len = 0; @@ -976,39 +1099,22 @@ static int dock_write(char *buf) if (strlencmp(cmd, "undock") == 0) { if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) - return -EIO; - } else if (strlencmp(cmd, "dock") == 0) { - if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) - return -EIO; - } else - return -EINVAL; - } - - return 0; -} - -static void dock_notify(struct ibm_struct *ibm, u32 event) -{ - int docked = dock_docked(); - int pci = ibm->hid && strstr(ibm->hid, IBM_PCI_HID); - - if (event == 1 && !pci) /* 570 */ - acpi_bus_generate_event(ibm->device, event, 1); /* button */ - else if (event == 1 && pci) /* 570 */ - acpi_bus_generate_event(ibm->device, event, 3); /* dock */ - else if (event == 3 && docked) - acpi_bus_generate_event(ibm->device, event, 1); /* button */ - else if (event == 3 && !docked) - acpi_bus_generate_event(ibm->device, event, 2); /* undock */ - else if (event == 0 && docked) - acpi_bus_generate_event(ibm->device, event, 3); /* dock */ - else { - printk(IBM_ERR "unknown dock event %d, status %d\n", - event, _sta(dock_handle)); - acpi_bus_generate_event(ibm->device, event, 0); /* unknown */ + return -EIO; + } else if (strlencmp(cmd, "dock") == 0) { + if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) + return -EIO; + } else + return -EINVAL; } + + return 0; } -#endif + +#endif /* CONFIG_ACPI_IBM_DOCK */ + +/************************************************************************* + * Bay subdriver + */ #ifdef CONFIG_ACPI_IBM_BAY static int bay_status_supported; @@ -1016,6 +1122,21 @@ static int bay_status2_supported; static int bay_eject_supported; static int bay_eject2_supported; +IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ + "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ + "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ + "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ + ); /* A21e, R30, R31 */ +IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ + "_EJ0", /* all others */ + ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ +IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ + "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ + ); /* all others */ +IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ + "_EJ0", /* 770x */ + ); /* all others */ + static int bay_init(void) { bay_status_supported = bay_handle && @@ -1031,6 +1152,11 @@ static int bay_init(void) return 0; } +static void bay_notify(struct ibm_struct *ibm, u32 event) +{ + acpi_bus_generate_event(ibm->device, event, 0); +} + #define bay_occupied(b) (_sta(b##_handle) & 1) static int bay_read(char *p) @@ -1081,12 +1207,19 @@ static int bay_write(char *buf) return 0; } +#endif /* CONFIG_ACPI_IBM_BAY */ -static void bay_notify(struct ibm_struct *ibm, u32 event) +/************************************************************************* + * CMOS subdriver + */ + +static int cmos_eval(int cmos_cmd) { - acpi_bus_generate_event(ibm->device, event, 0); + if (cmos_handle) + return acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd); + else + return 1; } -#endif /* CONFIG_ACPI_IBM_BAY */ static int cmos_read(char *p) { @@ -1104,14 +1237,6 @@ static int cmos_read(char *p) return len; } -static int cmos_eval(int cmos_cmd) -{ - if (cmos_handle) - return acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd); - else - return 1; -} - static int cmos_write(char *buf) { char *cmd; @@ -1134,8 +1259,18 @@ static int cmos_write(char *buf) return 0; } + +/************************************************************************* + * LED subdriver + */ + static enum led_access_mode led_supported; +IBM_HANDLE(led, ec, "SLED", /* 570 */ + "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ + "LED", /* all others */ + ); /* R30, R31 */ + static int led_init(void) { if (!led_handle) @@ -1242,6 +1377,12 @@ static int led_write(char *buf) return 0; } +/************************************************************************* + * Beep subdriver + */ + +IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ + static int beep_read(char *p) { int len = 0; @@ -1277,34 +1418,9 @@ static int beep_write(char *buf) return 0; } -static int acpi_ec_read(int i, u8 * p) -{ - int v; - - if (ecrd_handle) { - if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) - return 0; - *p = v; - } else { - if (ec_read(i, p) < 0) - return 0; - } - - return 1; -} - -static int acpi_ec_write(int i, u8 v) -{ - if (ecwr_handle) { - if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) - return 0; - } else { - if (ec_write(i, v) < 0) - return 0; - } - - return 1; -} +/************************************************************************* + * Thermal subdriver + */ static enum thermal_access_mode thermal_read_mode; @@ -1446,6 +1562,10 @@ static int thermal_read(char *p) return len; } +/************************************************************************* + * EC Dump subdriver + */ + static u8 ecdump_regs[256]; static int ecdump_read(char *p) @@ -1505,6 +1625,55 @@ static int ecdump_write(char *buf) return 0; } +/************************************************************************* + * Backlight/brightness subdriver + */ + +static struct backlight_device *ibm_backlight_device = NULL; + +static struct backlight_ops ibm_backlight_data = { + .get_brightness = brightness_get, + .update_status = brightness_update_status, +}; + +static int brightness_init(void) +{ + int b; + + b = brightness_get(NULL); + if (b < 0) + return b; + + ibm_backlight_device = backlight_device_register("ibm", NULL, NULL, + &ibm_backlight_data); + if (IS_ERR(ibm_backlight_device)) { + printk(IBM_ERR "Could not register backlight device\n"); + return PTR_ERR(ibm_backlight_device); + } + + ibm_backlight_device->props.max_brightness = 7; + ibm_backlight_device->props.brightness = b; + backlight_update_status(ibm_backlight_device); + + return 0; +} + +static void brightness_exit(void) +{ + if (ibm_backlight_device) { + backlight_device_unregister(ibm_backlight_device); + ibm_backlight_device = NULL; + } +} + +static int brightness_update_status(struct backlight_device *bd) +{ + return brightness_set( + (bd->props.fb_blank == FB_BLANK_UNBLANK && + bd->props.power == FB_BLANK_UNBLANK) ? + bd->props.brightness : 0); +} + static int brightness_get(struct backlight_device *bd) { u8 level; @@ -1516,23 +1685,6 @@ static int brightness_get(struct backlight_device *bd) return level; } -static int brightness_read(char *p) -{ - int len = 0; - int level; - - if ((level = brightness_get(NULL)) < 0) { - len += sprintf(p + len, "level:\t\tunreadable\n"); - } else { - len += sprintf(p + len, "level:\t\t%d\n", level & 0x7); - len += sprintf(p + len, "commands:\tup, down\n"); - len += sprintf(p + len, "commands:\tlevel " - " ( is 0-7)\n"); - } - - return len; -} - static int brightness_set(int value) { int cmos_cmd, inc, i; @@ -1540,8 +1692,7 @@ static int brightness_set(int value) value &= 7; - cmos_cmd = value > current_value ? - TP_CMOS_BRIGHTNESS_UP : TP_CMOS_BRIGHTNESS_DOWN; + cmos_cmd = value > current_value ? TP_CMOS_BRIGHTNESS_UP : TP_CMOS_BRIGHTNESS_DOWN; inc = value > current_value ? 1 : -1; for (i = current_value; i != value; i += inc) { if (!cmos_eval(cmos_cmd)) @@ -1553,6 +1704,23 @@ static int brightness_set(int value) return 0; } +static int brightness_read(char *p) +{ + int len = 0; + int level; + + if ((level = brightness_get(NULL)) < 0) { + len += sprintf(p + len, "level:\t\tunreadable\n"); + } else { + len += sprintf(p + len, "level:\t\t%d\n", level & 0x7); + len += sprintf(p + len, "commands:\tup, down\n"); + len += sprintf(p + len, "commands:\tlevel " + " ( is 0-7)\n"); + } + + return len; +} + static int brightness_write(char *buf) { int level; @@ -1580,48 +1748,9 @@ static int brightness_write(char *buf) return 0; } -static int brightness_update_status(struct backlight_device *bd) -{ - return brightness_set( - (bd->props.fb_blank == FB_BLANK_UNBLANK && - bd->props.power == FB_BLANK_UNBLANK) ? - bd->props.brightness : 0); -} - -static struct backlight_ops ibm_backlight_data = { - .get_brightness = brightness_get, - .update_status = brightness_update_status, -}; - -static int brightness_init(void) -{ - int b; - - b = brightness_get(NULL); - if (b < 0) - return b; - - ibm_backlight_device = backlight_device_register("ibm", NULL, NULL, - &ibm_backlight_data); - if (IS_ERR(ibm_backlight_device)) { - printk(IBM_ERR "Could not register backlight device\n"); - return PTR_ERR(ibm_backlight_device); - } - - ibm_backlight_device->props.max_brightness = 7; - ibm_backlight_device->props.brightness = b; - backlight_update_status(ibm_backlight_device); - - return 0; -} - -static void brightness_exit(void) -{ - if (ibm_backlight_device) { - backlight_device_unregister(ibm_backlight_device); - ibm_backlight_device = NULL; - } -} +/************************************************************************* + * Volume subdriver + */ static int volume_read(char *p) { @@ -1673,8 +1802,7 @@ static int volume_write(char *buf) return -EINVAL; if (new_level != level) { /* mute doesn't change */ - cmos_cmd = new_level > level ? - TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; + cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; inc = new_level > level ? 1 : -1; if (mute && (!cmos_eval(cmos_cmd) || @@ -1693,8 +1821,7 @@ static int volume_write(char *buf) } if (new_mute != mute) { /* level doesn't change */ - cmos_cmd = new_mute ? - TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; + cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; if (!cmos_eval(cmos_cmd) || !acpi_ec_write(volume_offset, level + new_mute)) @@ -1705,6 +1832,111 @@ static int volume_write(char *buf) return 0; } + +/************************************************************************* + * Fan subdriver + */ + +/* + * FAN ACCESS MODES + * + * IBMACPI_FAN_RD_ACPI_GFAN: + * ACPI GFAN method: returns fan level + * + * see IBMACPI_FAN_WR_ACPI_SFAN + * EC 0x2f not available if GFAN exists + * + * IBMACPI_FAN_WR_ACPI_SFAN: + * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) + * + * EC 0x2f might be available *for reading*, but never for writing. + * + * IBMACPI_FAN_WR_TPEC: + * ThinkPad EC register 0x2f (HFSP): fan control loop mode Supported + * on almost all ThinkPads + * + * Fan speed changes of any sort (including those caused by the + * disengaged mode) are usually done slowly by the firmware as the + * maximum ammount of fan duty cycle change per second seems to be + * limited. + * + * Reading is not available if GFAN exists. + * Writing is not available if SFAN exists. + * + * Bits + * 7 automatic mode engaged; + * (default operation mode of the ThinkPad) + * fan level is ignored in this mode. + * 6 disengage mode (takes precedence over bit 7); + * not available on all thinkpads. May disable + * the tachometer, and speeds up fan to 100% duty-cycle, + * which speeds it up far above the standard RPM + * levels. It is not impossible that it could cause + * hardware damage. + * 5-3 unused in some models. Extra bits for fan level + * in others, but still useless as all values above + * 7 map to the same speed as level 7 in these models. + * 2-0 fan level (0..7 usually) + * 0x00 = stop + * 0x07 = max (set when temperatures critical) + * Some ThinkPads may have other levels, see + * IBMACPI_FAN_WR_ACPI_FANS (X31/X40/X41) + * + * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at + * boot. Apparently the EC does not intialize it, so unless ACPI DSDT + * does so, its initial value is meaningless (0x07). + * + * For firmware bugs, refer to: + * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues + * + * ---- + * + * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): + * Main fan tachometer reading (in RPM) + * + * This register is present on all ThinkPads with a new-style EC, and + * it is known not to be present on the A21m/e, and T22, as there is + * something else in offset 0x84 according to the ACPI DSDT. Other + * ThinkPads from this same time period (and earlier) probably lack the + * tachometer as well. + * + * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare + * was never fixed by IBM to report the EC firmware version string + * probably support the tachometer (like the early X models), so + * detecting it is quite hard. We need more data to know for sure. + * + * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings + * might result. + * + * FIRMWARE BUG: when EC 0x2f bit 6 is set (disengaged mode), this + * register is not invalidated in ThinkPads that disable tachometer + * readings. Thus, the tachometer readings go stale. + * + * For firmware bugs, refer to: + * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues + * + * IBMACPI_FAN_WR_ACPI_FANS: + * ThinkPad X31, X40, X41. Not available in the X60. + * + * FANS ACPI handle: takes three arguments: low speed, medium speed, + * high speed. ACPI DSDT seems to map these three speeds to levels + * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH + * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") + * + * The speeds are stored on handles + * (FANA:FAN9), (FANC:FANB), (FANE:FAND). + * + * There are three default speed sets, acessible as handles: + * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H + * + * ACPI DSDT switches which set is in use depending on various + * factors. + * + * IBMACPI_FAN_WR_TPEC is also available and should be used to + * command the fan. The X31/X40/X41 seems to have 8 fan levels, + * but the ACPI tables just mention level 7. + */ + 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; @@ -1716,6 +1948,14 @@ static void fan_watchdog_fire(struct work_struct *ignored); static int fan_watchdog_maxinterval; static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); +IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ +IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ + "\\FSPD", /* 600e/x, 770e, 770x */ + ); /* all others */ +IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ + "JFNS", /* 770x-JL */ + ); /* all others */ + static int fan_init(void) { fan_status_access_mode = IBMACPI_FAN_NONE; @@ -1831,6 +2071,12 @@ static int fan_get_status(u8 *status) return 0; } +static void fan_exit(void) +{ + cancel_delayed_work(&fan_watchdog_task); + flush_scheduled_work(); +} + static int fan_get_speed(unsigned int *speed) { u8 hi, lo; @@ -1854,10 +2100,14 @@ static int fan_get_speed(unsigned int *speed) return 0; } -static void fan_exit(void) +static void fan_watchdog_fire(struct work_struct *ignored) { - cancel_delayed_work(&fan_watchdog_task); - flush_scheduled_work(); + printk(IBM_NOTICE "fan watchdog: enabling fan\n"); + if (fan_set_enable()) { + printk(IBM_ERR "fan watchdog: error while enabling fan\n"); + /* reschedule for later */ + fan_watchdog_reset(); + } } static void fan_watchdog_reset(void) @@ -1879,90 +2129,6 @@ static void fan_watchdog_reset(void) fan_watchdog_active = 0; } -static int fan_read(char *p) -{ - int len = 0; - int rc; - u8 status; - unsigned int speed = 0; - - switch (fan_status_access_mode) { - case IBMACPI_FAN_RD_ACPI_GFAN: - /* 570, 600e/x, 770e, 770x */ - if ((rc = fan_get_status(&status)) < 0) - return rc; - - len += sprintf(p + len, "status:\t\t%s\n" - "level:\t\t%d\n", - (status != 0) ? "enabled" : "disabled", status); - break; - - case IBMACPI_FAN_RD_TPEC: - /* all except 570, 600e/x, 770e, 770x */ - if ((rc = fan_get_status(&status)) < 0) - return rc; - - if (unlikely(!fan_control_status_known)) { - if (status != fan_control_initial_status) - fan_control_status_known = 1; - else - /* Return most likely status. In fact, it - * might be the only possible status */ - status = IBMACPI_FAN_EC_AUTO; - } - - len += sprintf(p + len, "status:\t\t%s\n", - (status != 0) ? "enabled" : "disabled"); - - /* No ThinkPad boots on disengaged mode, we can safely - * assume the tachometer is online if fan control status - * was unknown */ - if ((rc = fan_get_speed(&speed)) < 0) - return rc; - - len += sprintf(p + len, "speed:\t\t%d\n", speed); - - if (status & IBMACPI_FAN_EC_DISENGAGED) - /* Disengaged mode takes precedence */ - len += sprintf(p + len, "level:\t\tdisengaged\n"); - else if (status & IBMACPI_FAN_EC_AUTO) - len += sprintf(p + len, "level:\t\tauto\n"); - else - len += sprintf(p + len, "level:\t\t%d\n", status); - break; - - case IBMACPI_FAN_NONE: - default: - len += sprintf(p + len, "status:\t\tnot supported\n"); - } - - if (fan_control_commands & IBMACPI_FAN_CMD_LEVEL) { - len += sprintf(p + len, "commands:\tlevel "); - - switch (fan_control_access_mode) { - case IBMACPI_FAN_WR_ACPI_SFAN: - len += sprintf(p + len, " ( is 0-7)\n"); - break; - - default: - len += sprintf(p + len, " ( is 0-7, " - "auto, disengaged)\n"); - break; - } - } - - if (fan_control_commands & IBMACPI_FAN_CMD_ENABLE) - len += sprintf(p + len, "commands:\tenable, disable\n" - "commands:\twatchdog ( is 0 (off), " - "1-120 (seconds))\n"); - - if (fan_control_commands & IBMACPI_FAN_CMD_SPEED) - len += sprintf(p + len, "commands:\tspeed " - " ( is 0-65535)\n"); - - return len; -} - static int fan_set_level(int level) { switch (fan_control_access_mode) { @@ -2053,25 +2219,109 @@ static int fan_set_disable(void) default: return -ENXIO; } - return 0; -} + return 0; +} + +static int fan_set_speed(int speed) +{ + switch (fan_control_access_mode) { + case IBMACPI_FAN_WR_ACPI_FANS: + if (speed >= 0 && speed <= 65535) { + if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", + speed, speed, speed)) + return -EIO; + } else + return -EINVAL; + break; + + default: + return -ENXIO; + } + return 0; +} + +static int fan_read(char *p) +{ + int len = 0; + int rc; + u8 status; + unsigned int speed = 0; + + switch (fan_status_access_mode) { + case IBMACPI_FAN_RD_ACPI_GFAN: + /* 570, 600e/x, 770e, 770x */ + if ((rc = fan_get_status(&status)) < 0) + return rc; + + len += sprintf(p + len, "status:\t\t%s\n" + "level:\t\t%d\n", + (status != 0) ? "enabled" : "disabled", status); + break; + + case IBMACPI_FAN_RD_TPEC: + /* all except 570, 600e/x, 770e, 770x */ + if ((rc = fan_get_status(&status)) < 0) + return rc; + + if (unlikely(!fan_control_status_known)) { + if (status != fan_control_initial_status) + fan_control_status_known = 1; + else + /* Return most likely status. In fact, it + * might be the only possible status */ + status = IBMACPI_FAN_EC_AUTO; + } + + len += sprintf(p + len, "status:\t\t%s\n", + (status != 0) ? "enabled" : "disabled"); + + /* No ThinkPad boots on disengaged mode, we can safely + * assume the tachometer is online if fan control status + * was unknown */ + if ((rc = fan_get_speed(&speed)) < 0) + return rc; + + len += sprintf(p + len, "speed:\t\t%d\n", speed); + + if (status & IBMACPI_FAN_EC_DISENGAGED) + /* Disengaged mode takes precedence */ + len += sprintf(p + len, "level:\t\tdisengaged\n"); + else if (status & IBMACPI_FAN_EC_AUTO) + len += sprintf(p + len, "level:\t\tauto\n"); + else + len += sprintf(p + len, "level:\t\t%d\n", status); + break; + + case IBMACPI_FAN_NONE: + default: + len += sprintf(p + len, "status:\t\tnot supported\n"); + } + + if (fan_control_commands & IBMACPI_FAN_CMD_LEVEL) { + len += sprintf(p + len, "commands:\tlevel "); + + switch (fan_control_access_mode) { + case IBMACPI_FAN_WR_ACPI_SFAN: + len += sprintf(p + len, " ( is 0-7)\n"); + break; + + default: + len += sprintf(p + len, " ( is 0-7, " + "auto, disengaged)\n"); + break; + } + } -static int fan_set_speed(int speed) -{ - switch (fan_control_access_mode) { - case IBMACPI_FAN_WR_ACPI_FANS: - if (speed >= 0 && speed <= 65535) { - if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", - speed, speed, speed)) - return -EIO; - } else - return -EINVAL; - break; + if (fan_control_commands & IBMACPI_FAN_CMD_ENABLE) + len += sprintf(p + len, "commands:\tenable, disable\n" + "commands:\twatchdog ( is 0 (off), " + "1-120 (seconds))\n"); - default: - return -ENXIO; - } - return 0; + if (fan_control_commands & IBMACPI_FAN_CMD_SPEED) + len += sprintf(p + len, "commands:\tspeed " + " ( is 0-65535)\n"); + + return len; } static int fan_write_cmd_level(const char *cmd, int *rc) @@ -2171,16 +2421,18 @@ static int fan_write(char *buf) return rc; } -static void fan_watchdog_fire(struct work_struct *ignored) -{ - printk(IBM_NOTICE "fan watchdog: enabling fan\n"); - if (fan_set_enable()) { - printk(IBM_ERR "fan watchdog: error while enabling fan\n"); - /* reschedule for later */ - fan_watchdog_reset(); - } -} +/**************************************************************************** + **************************************************************************** + * + * Infrastructure + * + **************************************************************************** + ****************************************************************************/ + +/* /proc support */ +static struct proc_dir_entry *proc_dir = NULL; +/* Subdriver registry */ static struct ibm_struct ibms[] = { { .name = "driver", @@ -2301,132 +2553,9 @@ static struct ibm_struct ibms[] = { }, }; -static int dispatch_read(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - struct ibm_struct *ibm = data; - int len; - - if (!ibm || !ibm->read) - return -EINVAL; - - len = ibm->read(page); - if (len < 0) - return len; - - if (len <= off + count) - *eof = 1; - *start = page + off; - len -= off; - if (len > count) - len = count; - if (len < 0) - len = 0; - - return len; -} - -static int dispatch_write(struct file *file, const char __user * userbuf, - unsigned long count, void *data) -{ - struct ibm_struct *ibm = data; - char *kernbuf; - int ret; - - if (!ibm || !ibm->write) - return -EINVAL; - - kernbuf = kmalloc(count + 2, GFP_KERNEL); - if (!kernbuf) - return -ENOMEM; - - if (copy_from_user(kernbuf, userbuf, count)) { - kfree(kernbuf); - return -EFAULT; - } - - kernbuf[count] = 0; - strcat(kernbuf, ","); - ret = ibm->write(kernbuf); - if (ret == 0) - ret = count; - - kfree(kernbuf); - - return ret; -} - -static void dispatch_notify(acpi_handle handle, u32 event, void *data) -{ - struct ibm_struct *ibm = data; - - if (!ibm || !ibm->notify) - return; - - ibm->notify(ibm, event); -} - -static int __init setup_notify(struct ibm_struct *ibm) -{ - acpi_status status; - int ret; - - if (!*ibm->handle) - return 0; - - ret = acpi_bus_get_device(*ibm->handle, &ibm->device); - if (ret < 0) { - printk(IBM_ERR "%s device not present\n", ibm->name); - return -ENODEV; - } - - acpi_driver_data(ibm->device) = ibm; - sprintf(acpi_device_class(ibm->device), "%s/%s", IBM_NAME, ibm->name); - - status = acpi_install_notify_handler(*ibm->handle, ibm->type, - dispatch_notify, ibm); - if (ACPI_FAILURE(status)) { - if (status == AE_ALREADY_EXISTS) { - printk(IBM_NOTICE "another device driver is already handling %s events\n", - ibm->name); - } else { - printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n", - ibm->name, status); - } - return -ENODEV; - } - ibm->notify_installed = 1; - return 0; -} - -static int __init ibm_device_add(struct acpi_device *device) -{ - return 0; -} - -static int __init register_ibmacpi_subdriver(struct ibm_struct *ibm) -{ - int ret; - - ibm->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); - if (!ibm->driver) { - printk(IBM_ERR "kmalloc(ibm->driver) failed\n"); - return -1; - } - - sprintf(ibm->driver->name, "%s_%s", IBM_NAME, ibm->name); - ibm->driver->ids = ibm->hid; - ibm->driver->ops.add = &ibm_device_add; - - ret = acpi_bus_register_driver(ibm->driver); - if (ret < 0) { - printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", - ibm->hid, ret); - kfree(ibm->driver); - } - - return ret; -} +/* + * Module and infrastructure proble, init and exit handling + */ static int __init ibm_init(struct ibm_struct *ibm) { @@ -2500,27 +2629,35 @@ static void ibm_exit(struct ibm_struct *ibm) } } -static void __init ibm_handle_init(char *name, - acpi_handle * handle, acpi_handle parent, - char **paths, int num_paths, char **path) +/* Probing */ + +static char *ibm_thinkpad_ec_found = NULL; + +static char* __init check_dmi_for_ec(void) { - int i; - acpi_status status; + struct dmi_device *dev = NULL; + char ec_fw_string[18]; - for (i = 0; i < num_paths; i++) { - status = acpi_get_handle(parent, paths[i], handle); - if (ACPI_SUCCESS(status)) { - *path = paths[i]; - return; + /* + * ThinkPad T23 or newer, A31 or newer, R50e or newer, + * X32 or newer, all Z series; Some models must have an + * up-to-date BIOS or they will not be detected. + * + * See http://thinkwiki.org/wiki/List_of_DMI_IDs + */ + while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { + if (sscanf(dev->name, + "IBM ThinkPad Embedded Controller -[%17c", + ec_fw_string) == 1) { + ec_fw_string[sizeof(ec_fw_string) - 1] = 0; + ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; + return kstrdup(ec_fw_string, GFP_KERNEL); } } - - *handle = NULL; + return NULL; } -#define IBM_HANDLE_INIT(object) \ - ibm_handle_init(#object, &object##_handle, *object##_parent, \ - object##_paths, ARRAY_SIZE(object##_paths), &object##_path) +/* Module init, exit, parameters */ static int __init set_ibm_param(const char *val, struct kernel_param *kp) { @@ -2538,6 +2675,9 @@ static int __init set_ibm_param(const char *val, struct kernel_param *kp) return -EINVAL; } +static int experimental; +module_param(experimental, int, 0); + #define IBM_PARAM(feature) \ module_param_call(feature, set_ibm_param, NULL, NULL, 0) @@ -2559,44 +2699,6 @@ IBM_PARAM(brightness); IBM_PARAM(volume); IBM_PARAM(fan); -static void acpi_ibm_exit(void) -{ - int i; - - for (i = ARRAY_SIZE(ibms) - 1; i >= 0; i--) - ibm_exit(&ibms[i]); - - if (proc_dir) - remove_proc_entry(IBM_DIR, acpi_root_dir); - - if (ibm_thinkpad_ec_found) - kfree(ibm_thinkpad_ec_found); -} - -static char* __init check_dmi_for_ec(void) -{ - struct dmi_device *dev = NULL; - char ec_fw_string[18]; - - /* - * ThinkPad T23 or newer, A31 or newer, R50e or newer, - * X32 or newer, all Z series; Some models must have an - * up-to-date BIOS or they will not be detected. - * - * See http://thinkwiki.org/wiki/List_of_DMI_IDs - */ - while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { - if (sscanf(dev->name, - "IBM ThinkPad Embedded Controller -[%17c", - ec_fw_string) == 1) { - ec_fw_string[sizeof(ec_fw_string) - 1] = 0; - ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; - return kstrdup(ec_fw_string, GFP_KERNEL); - } - } - return NULL; -} - static int __init acpi_ibm_init(void) { int ret, i; @@ -2662,5 +2764,19 @@ static int __init acpi_ibm_init(void) return 0; } +static void acpi_ibm_exit(void) +{ + int i; + + for (i = ARRAY_SIZE(ibms) - 1; i >= 0; i--) + ibm_exit(&ibms[i]); + + if (proc_dir) + remove_proc_entry(IBM_DIR, acpi_root_dir); + + if (ibm_thinkpad_ec_found) + kfree(ibm_thinkpad_ec_found); +} + module_init(acpi_ibm_init); module_exit(acpi_ibm_exit); -- cgit v1.1 From a62bc916cf48caaf9efa2fed20440fd617647c6c Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Fri, 23 Mar 2007 17:33:58 -0300 Subject: ACPI: ibm-acpi: update copyright notice Update copyright and license info on the source code comments. No functional changes. Signed-off-by: Henrique de Moraes Holschuh Signed-off-by: Len Brown --- drivers/acpi/ibm_acpi.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c index 984ec81..ae03b8f 100644 --- a/drivers/acpi/ibm_acpi.c +++ b/drivers/acpi/ibm_acpi.c @@ -3,7 +3,7 @@ * * * Copyright (C) 2004-2005 Borislav Deianov - * Copyright (C) 2006 Henrique de Moraes Holschuh + * 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 @@ -17,7 +17,8 @@ * * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. */ #define IBM_VERSION "0.13" -- cgit v1.1 From 3ede41c718c7845905231019e42d05a3ed329515 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Fri, 23 Mar 2007 17:34:00 -0300 Subject: ACPI: ibm-acpi: move driver to drivers/misc hierarchy ibm-acpi is not an ACPICA driver, so move it to drivers/misc as per Len Brown's request. Signed-off-by: Henrique de Moraes Holschuh Signed-off-by: Len Brown --- drivers/acpi/Kconfig | 37 - drivers/acpi/Makefile | 1 - drivers/acpi/ibm_acpi.c | 2783 ----------------------------------------------- drivers/acpi/ibm_acpi.h | 437 -------- 4 files changed, 3258 deletions(-) delete mode 100644 drivers/acpi/ibm_acpi.c delete mode 100644 drivers/acpi/ibm_acpi.h (limited to 'drivers/acpi') diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index e2ce4a9..45c4315 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -218,43 +218,6 @@ config ACPI_ASUS NOTE: This driver is deprecated and will probably be removed soon, use asus-laptop instead. -config ACPI_IBM - tristate "IBM ThinkPad Laptop Extras" - depends on X86 - select BACKLIGHT_CLASS_DEVICE - ---help--- - This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds - support for Fn-Fx key combinations, Bluetooth control, video - output switching, ThinkLight control, UltraBay eject and more. - For more information about this driver see - and . - - If you have an IBM ThinkPad laptop, say Y or M here. - -config ACPI_IBM_DOCK - bool "Legacy Docking Station Support" - depends on ACPI_IBM - depends on ACPI_DOCK=n - default n - ---help--- - Allows the ibm_acpi driver to handle docking station events. - This support is obsoleted by CONFIG_HOTPLUG_PCI_ACPI. It will - allow locking and removing the laptop from the docking station, - but will not properly connect PCI devices. - - If you are not sure, say N here. - -config ACPI_IBM_BAY - bool "Legacy Removable Bay Support" - depends on ACPI_IBM - default y - ---help--- - Allows the ibm_acpi driver to handle removable bays. It will allow - disabling the device in the bay, and also generate notifications when - the bay lever is ejected or inserted. - - If you are not sure, say Y here. - config ACPI_TOSHIBA tristate "Toshiba Laptop Extras" depends on X86 diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 5956e9f..92642ab 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -55,7 +55,6 @@ obj-$(CONFIG_ACPI_SYSTEM) += system.o event.o obj-$(CONFIG_ACPI_DEBUG) += debug.o obj-$(CONFIG_ACPI_NUMA) += numa.o obj-$(CONFIG_ACPI_ASUS) += asus_acpi.o -obj-$(CONFIG_ACPI_IBM) += ibm_acpi.o obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o obj-$(CONFIG_ACPI_HOTPLUG_MEMORY) += acpi_memhotplug.o obj-y += cm_sbs.o diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c deleted file mode 100644 index ae03b8f..0000000 --- a/drivers/acpi/ibm_acpi.c +++ /dev/null @@ -1,2783 +0,0 @@ -/* - * ibm_acpi.c - IBM 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. - */ - -#define IBM_VERSION "0.13" - -/* - * Changelog: - * - * 2006-11-22 0.13 new maintainer - * changelog now lives in git commit history, and will - * not be updated further in-file. - * - * 2005-08-17 0.12 fix compilation on 2.6.13-rc kernels - * 2005-03-17 0.11 support for 600e, 770x - * thanks to Jamie Lentin - * support for 770e, G41 - * G40 and G41 don't have a thinklight - * temperatures no longer experimental - * experimental brightness control - * experimental volume control - * experimental fan enable/disable - * 2005-01-16 0.10 fix module loading on R30, R31 - * 2005-01-16 0.9 support for 570, R30, R31 - * ultrabay support on A22p, A3x - * limit arg for cmos, led, beep, drop experimental status - * more capable led control on A21e, A22p, T20-22, X20 - * experimental temperatures and fan speed - * experimental embedded controller register dump - * mark more functions as __init, drop incorrect __exit - * use MODULE_VERSION - * thanks to Henrik Brix Andersen - * fix parameter passing on module loading - * thanks to Rusty Russell - * thanks to Jim Radford - * 2004-11-08 0.8 fix init error case, don't return from a macro - * thanks to Chris Wright - * 2004-10-23 0.7 fix module loading on A21e, A22p, T20, T21, X20 - * fix led control on A21e - * 2004-10-19 0.6 use acpi_bus_register_driver() to claim HKEY device - * 2004-10-18 0.5 thinklight support on A21e, G40, R32, T20, T21, X20 - * proc file format changed - * video_switch command - * experimental cmos control - * experimental led control - * experimental acpi sounds - * 2004-09-16 0.4 support for module parameters - * hotkey mask can be prefixed by 0x - * video output switching - * video expansion control - * ultrabay eject support - * removed lcd brightness/on/off control, didn't work - * 2004-08-17 0.3 support for R40 - * lcd off, brightness control - * thinklight on/off - * 2004-08-14 0.2 support for T series, X20 - * bluetooth enable/disable - * hotkey events disabled by default - * removed fan control, currently useless - * 2004-08-09 0.1 initial release, support for X series - */ - -#include "ibm_acpi.h" - -MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); -MODULE_DESCRIPTION(IBM_DESC); -MODULE_VERSION(IBM_VERSION); -MODULE_LICENSE("GPL"); - -#define __unused __attribute__ ((unused)) - -/**************************************************************************** - **************************************************************************** - * - * ACPI Helpers and device model - * - **************************************************************************** - ****************************************************************************/ - -/************************************************************************* - * ACPI basic handles - */ - -static acpi_handle root_handle = NULL; - -#define IBM_HANDLE(object, parent, paths...) \ - static acpi_handle object##_handle; \ - static acpi_handle *object##_parent = &parent##_handle; \ - static char *object##_path; \ - static char *object##_paths[] = { paths } - -IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ - "\\_SB.PCI.ISA.EC", /* 570 */ - "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ - "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ - "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ - "\\_SB.PCI0.ICH3.EC0", /* R31 */ - "\\_SB.PCI0.LPC.EC", /* all others */ - ); - -IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */ -IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */ - - -/************************************************************************* - * Misc ACPI handles - */ - -IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */ - "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ - "\\CMS", /* R40, R40e */ - ); /* all others */ - -IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ - "^HKEY", /* R30, R31 */ - "HKEY", /* all others */ - ); /* 570 */ - - -/************************************************************************* - * ACPI helpers - */ - -static int acpi_evalf(acpi_handle handle, - void *res, char *method, char *fmt, ...) -{ - char *fmt0 = fmt; - struct acpi_object_list params; - union acpi_object in_objs[IBM_MAX_ACPI_ARGS]; - struct acpi_buffer result, *resultp; - union acpi_object out_obj; - acpi_status status; - va_list ap; - char res_type; - int success; - int quiet; - - if (!*fmt) { - printk(IBM_ERR "acpi_evalf() called with empty format\n"); - return 0; - } - - if (*fmt == 'q') { - quiet = 1; - fmt++; - } else - quiet = 0; - - res_type = *(fmt++); - - params.count = 0; - params.pointer = &in_objs[0]; - - va_start(ap, fmt); - while (*fmt) { - char c = *(fmt++); - switch (c) { - case 'd': /* int */ - in_objs[params.count].integer.value = va_arg(ap, int); - in_objs[params.count++].type = ACPI_TYPE_INTEGER; - break; - /* add more types as needed */ - default: - printk(IBM_ERR "acpi_evalf() called " - "with invalid format character '%c'\n", c); - return 0; - } - } - va_end(ap); - - if (res_type != 'v') { - result.length = sizeof(out_obj); - result.pointer = &out_obj; - resultp = &result; - } else - resultp = NULL; - - status = acpi_evaluate_object(handle, method, ¶ms, resultp); - - switch (res_type) { - case 'd': /* int */ - if (res) - *(int *)res = out_obj.integer.value; - success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; - break; - case 'v': /* void */ - success = status == AE_OK; - break; - /* add more types as needed */ - default: - printk(IBM_ERR "acpi_evalf() called " - "with invalid format character '%c'\n", res_type); - return 0; - } - - if (!success && !quiet) - printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", - method, fmt0, status); - - return success; -} - -static void __unused acpi_print_int(acpi_handle handle, char *method) -{ - int i; - - if (acpi_evalf(handle, &i, method, "d")) - printk(IBM_INFO "%s = 0x%x\n", method, i); - else - printk(IBM_ERR "error calling %s\n", method); -} - -static int acpi_ec_read(int i, u8 * p) -{ - int v; - - if (ecrd_handle) { - if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) - return 0; - *p = v; - } else { - if (ec_read(i, p) < 0) - return 0; - } - - return 1; -} - -static int acpi_ec_write(int i, u8 v) -{ - if (ecwr_handle) { - if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) - return 0; - } else { - if (ec_write(i, v) < 0) - return 0; - } - - return 1; -} - -static int _sta(acpi_handle handle) -{ - int status; - - if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) - status = 0; - - return status; -} - -/************************************************************************* - * ACPI device model - */ - -static void __init ibm_handle_init(char *name, - acpi_handle * handle, acpi_handle parent, - char **paths, int num_paths, char **path) -{ - int i; - acpi_status status; - - for (i = 0; i < num_paths; i++) { - status = acpi_get_handle(parent, paths[i], handle); - if (ACPI_SUCCESS(status)) { - *path = paths[i]; - return; - } - } - - *handle = NULL; -} - -static void dispatch_notify(acpi_handle handle, u32 event, void *data) -{ - struct ibm_struct *ibm = data; - - if (!ibm || !ibm->notify) - return; - - ibm->notify(ibm, event); -} - -static int __init setup_notify(struct ibm_struct *ibm) -{ - acpi_status status; - int ret; - - if (!*ibm->handle) - return 0; - - ret = acpi_bus_get_device(*ibm->handle, &ibm->device); - if (ret < 0) { - printk(IBM_ERR "%s device not present\n", ibm->name); - return -ENODEV; - } - - acpi_driver_data(ibm->device) = ibm; - sprintf(acpi_device_class(ibm->device), "%s/%s", IBM_NAME, ibm->name); - - status = acpi_install_notify_handler(*ibm->handle, ibm->type, - dispatch_notify, ibm); - if (ACPI_FAILURE(status)) { - if (status == AE_ALREADY_EXISTS) { - printk(IBM_NOTICE "another device driver is already handling %s events\n", - ibm->name); - } else { - printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n", - ibm->name, status); - } - return -ENODEV; - } - ibm->notify_installed = 1; - return 0; -} - -static int __init ibm_device_add(struct acpi_device *device) -{ - return 0; -} - -static int __init register_ibmacpi_subdriver(struct ibm_struct *ibm) -{ - int ret; - - ibm->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); - if (!ibm->driver) { - printk(IBM_ERR "kmalloc(ibm->driver) failed\n"); - return -1; - } - - sprintf(ibm->driver->name, "%s_%s", IBM_NAME, ibm->name); - ibm->driver->ids = ibm->hid; - ibm->driver->ops.add = &ibm_device_add; - - ret = acpi_bus_register_driver(ibm->driver); - if (ret < 0) { - printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", - ibm->hid, ret); - kfree(ibm->driver); - } - - return ret; -} - - -/**************************************************************************** - **************************************************************************** - * - * Procfs Helpers - * - **************************************************************************** - ****************************************************************************/ - -static int dispatch_read(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - struct ibm_struct *ibm = data; - int len; - - if (!ibm || !ibm->read) - return -EINVAL; - - len = ibm->read(page); - if (len < 0) - return len; - - if (len <= off + count) - *eof = 1; - *start = page + off; - len -= off; - if (len > count) - len = count; - if (len < 0) - len = 0; - - return len; -} - -static int dispatch_write(struct file *file, const char __user * userbuf, - unsigned long count, void *data) -{ - struct ibm_struct *ibm = data; - char *kernbuf; - int ret; - - if (!ibm || !ibm->write) - return -EINVAL; - - kernbuf = kmalloc(count + 2, GFP_KERNEL); - if (!kernbuf) - return -ENOMEM; - - if (copy_from_user(kernbuf, userbuf, count)) { - kfree(kernbuf); - return -EFAULT; - } - - kernbuf[count] = 0; - strcat(kernbuf, ","); - ret = ibm->write(kernbuf); - if (ret == 0) - ret = count; - - kfree(kernbuf); - - return ret; -} - -static char *next_cmd(char **cmds) -{ - char *start = *cmds; - char *end; - - while ((end = strchr(start, ',')) && end == start) - start = end + 1; - - if (!end) - return NULL; - - *end = 0; - *cmds = end + 1; - return start; -} - - -/**************************************************************************** - **************************************************************************** - * - * Subdrivers - * - **************************************************************************** - ****************************************************************************/ - -/************************************************************************* - * ibm-acpi init subdriver - */ - -static int ibm_acpi_driver_init(void) -{ - printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); - printk(IBM_INFO "%s\n", IBM_URL); - - if (ibm_thinkpad_ec_found) - printk(IBM_INFO "ThinkPad EC firmware %s\n", - ibm_thinkpad_ec_found); - - return 0; -} - -static int ibm_acpi_driver_read(char *p) -{ - int len = 0; - - len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC); - len += sprintf(p + len, "version:\t%s\n", IBM_VERSION); - - return len; -} - -/************************************************************************* - * 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) -{ - /* hotkey not supported on 570 */ - hotkey_supported = hkey_handle != NULL; - - if (hotkey_supported) { - /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, - A30, R30, R31, T20-22, X20-21, X22-24 */ - hotkey_mask_supported = - acpi_evalf(hkey_handle, NULL, "DHKN", "qv"); - - if (!hotkey_get(&hotkey_orig_status, &hotkey_orig_mask)) - return -ENODEV; - } - - return 0; -} - -static void hotkey_exit(void) -{ - if (hotkey_supported) - hotkey_set(hotkey_orig_status, hotkey_orig_mask); -} - -static void hotkey_notify(struct ibm_struct *ibm, u32 event) -{ - int hkey; - - if (acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) - acpi_bus_generate_event(ibm->device, event, hkey); - else { - printk(IBM_ERR "unknown hotkey event %d\n", event); - acpi_bus_generate_event(ibm->device, event, 0); - } -} - -static int hotkey_get(int *status, int *mask) -{ - if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) - return 0; - - if (hotkey_mask_supported) - if (!acpi_evalf(hkey_handle, mask, "DHKN", "d")) - return 0; - - return 1; -} - -static int hotkey_set(int status, int mask) -{ - int i; - - if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) - return 0; - - if (hotkey_mask_supported) - for (i = 0; i < 32; i++) { - int bit = ((1 << i) & mask) != 0; - if (!acpi_evalf(hkey_handle, - NULL, "MHKM", "vdd", i + 1, bit)) - return 0; - } - - return 1; -} - -static int hotkey_read(char *p) -{ - int status, mask; - int len = 0; - - if (!hotkey_supported) { - len += sprintf(p + len, "status:\t\tnot supported\n"); - return len; - } - - if (!hotkey_get(&status, &mask)) - return -EIO; - - len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); - if (hotkey_mask_supported) { - len += sprintf(p + len, "mask:\t\t0x%04x\n", mask); - len += sprintf(p + len, - "commands:\tenable, disable, reset, \n"); - } else { - len += sprintf(p + len, "mask:\t\tnot supported\n"); - len += sprintf(p + len, "commands:\tenable, disable, reset\n"); - } - - return len; -} - -static int hotkey_write(char *buf) -{ - int status, mask; - char *cmd; - int do_cmd = 0; - - if (!hotkey_supported) - return -ENODEV; - - if (!hotkey_get(&status, &mask)) - return -EIO; - - while ((cmd = next_cmd(&buf))) { - if (strlencmp(cmd, "enable") == 0) { - status = 1; - } else if (strlencmp(cmd, "disable") == 0) { - status = 0; - } else if (strlencmp(cmd, "reset") == 0) { - status = hotkey_orig_status; - mask = hotkey_orig_mask; - } else if (sscanf(cmd, "0x%x", &mask) == 1) { - /* mask set */ - } else if (sscanf(cmd, "%x", &mask) == 1) { - /* mask set */ - } else - return -EINVAL; - do_cmd = 1; - } - - if (do_cmd && !hotkey_set(status, mask)) - return -EIO; - - return 0; -} - -/************************************************************************* - * Bluetooth subdriver - */ - -static int bluetooth_supported; - -static int bluetooth_init(void) -{ - /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, - G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ - bluetooth_supported = hkey_handle && - acpi_evalf(hkey_handle, NULL, "GBDC", "qv"); - - return 0; -} - -static int bluetooth_status(void) -{ - int status; - - if (!bluetooth_supported || - !acpi_evalf(hkey_handle, &status, "GBDC", "d")) - status = 0; - - return status; -} - -static int bluetooth_read(char *p) -{ - int len = 0; - int status = bluetooth_status(); - - if (!bluetooth_supported) - len += sprintf(p + len, "status:\t\tnot supported\n"); - else if (!(status & 1)) - len += sprintf(p + len, "status:\t\tnot installed\n"); - else { - len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 1)); - len += sprintf(p + len, "commands:\tenable, disable\n"); - } - - return len; -} - -static int bluetooth_write(char *buf) -{ - int status = bluetooth_status(); - char *cmd; - int do_cmd = 0; - - if (!bluetooth_supported) - return -ENODEV; - - while ((cmd = next_cmd(&buf))) { - if (strlencmp(cmd, "enable") == 0) { - status |= 2; - } else if (strlencmp(cmd, "disable") == 0) { - status &= ~2; - } else - return -EINVAL; - do_cmd = 1; - } - - if (do_cmd && !acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) - return -EIO; - - return 0; -} - -/************************************************************************* - * Wan subdriver - */ - -static int wan_supported; - -static int wan_init(void) -{ - wan_supported = hkey_handle && - acpi_evalf(hkey_handle, NULL, "GWAN", "qv"); - - return 0; -} - -static int wan_status(void) -{ - int status; - - if (!wan_supported || !acpi_evalf(hkey_handle, &status, "GWAN", "d")) - status = 0; - - return status; -} - -static int wan_read(char *p) -{ - int len = 0; - int status = wan_status(); - - if (!wan_supported) - len += sprintf(p + len, "status:\t\tnot supported\n"); - else if (!(status & 1)) - len += sprintf(p + len, "status:\t\tnot installed\n"); - else { - len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 1)); - len += sprintf(p + len, "commands:\tenable, disable\n"); - } - - return len; -} - -static int wan_write(char *buf) -{ - int status = wan_status(); - char *cmd; - int do_cmd = 0; - - if (!wan_supported) - return -ENODEV; - - while ((cmd = next_cmd(&buf))) { - if (strlencmp(cmd, "enable") == 0) { - status |= 2; - } else if (strlencmp(cmd, "disable") == 0) { - status &= ~2; - } else - return -EINVAL; - do_cmd = 1; - } - - if (do_cmd && !acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) - return -EIO; - - return 0; -} - -/************************************************************************* - * Video subdriver - */ - -static enum video_access_mode video_supported; -static int video_orig_autosw; - -IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ - "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ - "\\_SB.PCI0.VID0", /* 770e */ - "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ - "\\_SB.PCI0.AGP.VID", /* all others */ - ); /* R30, R31 */ - -IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ - -static int video_init(void) -{ - int ivga; - - if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) - /* G41, assume IVGA doesn't change */ - vid_handle = vid2_handle; - - if (!vid_handle) - /* video switching not supported on R30, R31 */ - video_supported = IBMACPI_VIDEO_NONE; - else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) - /* 570 */ - video_supported = IBMACPI_VIDEO_570; - else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) - /* 600e/x, 770e, 770x */ - video_supported = IBMACPI_VIDEO_770; - else - /* all others */ - video_supported = IBMACPI_VIDEO_NEW; - - return 0; -} - -static void video_exit(void) -{ - acpi_evalf(vid_handle, NULL, "_DOS", "vd", video_orig_autosw); -} - -static int video_status(void) -{ - int status = 0; - int i; - - if (video_supported == IBMACPI_VIDEO_570) { - if (acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", 0x87)) - status = i & 3; - } else if (video_supported == IBMACPI_VIDEO_770) { - if (acpi_evalf(NULL, &i, "\\VCDL", "d")) - status |= 0x01 * i; - if (acpi_evalf(NULL, &i, "\\VCDC", "d")) - status |= 0x02 * i; - } else if (video_supported == IBMACPI_VIDEO_NEW) { - acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1); - if (acpi_evalf(NULL, &i, "\\VCDC", "d")) - status |= 0x02 * i; - - acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0); - if (acpi_evalf(NULL, &i, "\\VCDL", "d")) - status |= 0x01 * i; - if (acpi_evalf(NULL, &i, "\\VCDD", "d")) - status |= 0x08 * i; - } - - return status; -} - -static int video_autosw(void) -{ - int autosw = 0; - - if (video_supported == IBMACPI_VIDEO_570) - acpi_evalf(vid_handle, &autosw, "SWIT", "d"); - else if (video_supported == IBMACPI_VIDEO_770 || - video_supported == IBMACPI_VIDEO_NEW) - acpi_evalf(vid_handle, &autosw, "^VDEE", "d"); - - return autosw & 1; -} - -static int video_switch(void) -{ - int autosw = video_autosw(); - int ret; - - if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) - return -EIO; - ret = video_supported == IBMACPI_VIDEO_570 ? - acpi_evalf(ec_handle, NULL, "_Q16", "v") : - acpi_evalf(vid_handle, NULL, "VSWT", "v"); - acpi_evalf(vid_handle, NULL, "_DOS", "vd", autosw); - - return ret; -} - -static int video_expand(void) -{ - if (video_supported == IBMACPI_VIDEO_570) - return acpi_evalf(ec_handle, NULL, "_Q17", "v"); - else if (video_supported == IBMACPI_VIDEO_770) - return acpi_evalf(vid_handle, NULL, "VEXP", "v"); - else - return acpi_evalf(NULL, NULL, "\\VEXP", "v"); -} - -static int video_switch2(int status) -{ - int ret; - - if (video_supported == IBMACPI_VIDEO_570) { - ret = acpi_evalf(NULL, NULL, - "\\_SB.PHS2", "vdd", 0x8b, status | 0x80); - } else if (video_supported == IBMACPI_VIDEO_770) { - int autosw = video_autosw(); - if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) - return -EIO; - - ret = acpi_evalf(vid_handle, NULL, - "ASWT", "vdd", status * 0x100, 0); - - acpi_evalf(vid_handle, NULL, "_DOS", "vd", autosw); - } else { - ret = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && - acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); - } - - return ret; -} - -static int video_read(char *p) -{ - int status = video_status(); - int autosw = video_autosw(); - int len = 0; - - if (!video_supported) { - len += sprintf(p + len, "status:\t\tnot supported\n"); - return len; - } - - len += sprintf(p + len, "status:\t\tsupported\n"); - len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); - len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); - if (video_supported == IBMACPI_VIDEO_NEW) - len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); - len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); - len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); - len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); - if (video_supported == IBMACPI_VIDEO_NEW) - len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); - len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); - len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); - - return len; -} - -static int video_write(char *buf) -{ - char *cmd; - int enable, disable, status; - - if (!video_supported) - return -ENODEV; - - enable = disable = 0; - - while ((cmd = next_cmd(&buf))) { - if (strlencmp(cmd, "lcd_enable") == 0) { - enable |= 0x01; - } else if (strlencmp(cmd, "lcd_disable") == 0) { - disable |= 0x01; - } else if (strlencmp(cmd, "crt_enable") == 0) { - enable |= 0x02; - } else if (strlencmp(cmd, "crt_disable") == 0) { - disable |= 0x02; - } else if (video_supported == IBMACPI_VIDEO_NEW && - strlencmp(cmd, "dvi_enable") == 0) { - enable |= 0x08; - } else if (video_supported == IBMACPI_VIDEO_NEW && - strlencmp(cmd, "dvi_disable") == 0) { - disable |= 0x08; - } else if (strlencmp(cmd, "auto_enable") == 0) { - if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 1)) - return -EIO; - } else if (strlencmp(cmd, "auto_disable") == 0) { - if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", 0)) - return -EIO; - } else if (strlencmp(cmd, "video_switch") == 0) { - if (!video_switch()) - return -EIO; - } else if (strlencmp(cmd, "expand_toggle") == 0) { - if (!video_expand()) - return -EIO; - } else - return -EINVAL; - } - - if (enable || disable) { - status = (video_status() & 0x0f & ~disable) | enable; - if (!video_switch2(status)) - return -EIO; - } - - return 0; -} - -/************************************************************************* - * Light (thinklight) subdriver - */ - -static int light_supported; -static int light_status_supported; - -IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ -IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ - -static int light_init(void) -{ - /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ - light_supported = (cmos_handle || lght_handle) && !ledb_handle; - - if (light_supported) - /* light status not supported on - 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ - light_status_supported = acpi_evalf(ec_handle, NULL, - "KBLT", "qv"); - - return 0; -} - -static int light_read(char *p) -{ - int len = 0; - int status = 0; - - if (!light_supported) { - len += sprintf(p + len, "status:\t\tnot supported\n"); - } else if (!light_status_supported) { - len += sprintf(p + len, "status:\t\tunknown\n"); - len += sprintf(p + len, "commands:\ton, off\n"); - } else { - if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) - return -EIO; - len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); - len += sprintf(p + len, "commands:\ton, off\n"); - } - - return len; -} - -static int light_write(char *buf) -{ - int cmos_cmd, lght_cmd; - char *cmd; - int success; - - if (!light_supported) - return -ENODEV; - - while ((cmd = next_cmd(&buf))) { - if (strlencmp(cmd, "on") == 0) { - cmos_cmd = 0x0c; - lght_cmd = 1; - } else if (strlencmp(cmd, "off") == 0) { - cmos_cmd = 0x0d; - lght_cmd = 0; - } else - return -EINVAL; - - success = cmos_handle ? - acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) : - acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd); - if (!success) - return -EIO; - } - - return 0; -} - -/************************************************************************* - * Dock subdriver - */ - -/* don't list other alternatives as we install a notify handler on the 570 */ -IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ - -#ifdef CONFIG_ACPI_IBM_DOCK - -IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ - "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ - "\\_SB.PCI0.PCI1.DOCK", /* all others */ - "\\_SB.PCI.ISA.SLCE", /* 570 */ - ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ - -#define dock_docked() (_sta(dock_handle) & 1) - -static void dock_notify(struct ibm_struct *ibm, u32 event) -{ - int docked = dock_docked(); - int pci = ibm->hid && strstr(ibm->hid, IBM_PCI_HID); - - if (event == 1 && !pci) /* 570 */ - acpi_bus_generate_event(ibm->device, event, 1); /* button */ - else if (event == 1 && pci) /* 570 */ - acpi_bus_generate_event(ibm->device, event, 3); /* dock */ - else if (event == 3 && docked) - acpi_bus_generate_event(ibm->device, event, 1); /* button */ - else if (event == 3 && !docked) - acpi_bus_generate_event(ibm->device, event, 2); /* undock */ - else if (event == 0 && docked) - acpi_bus_generate_event(ibm->device, event, 3); /* dock */ - else { - printk(IBM_ERR "unknown dock event %d, status %d\n", - event, _sta(dock_handle)); - acpi_bus_generate_event(ibm->device, event, 0); /* unknown */ - } -} - -static int dock_read(char *p) -{ - int len = 0; - int docked = dock_docked(); - - if (!dock_handle) - len += sprintf(p + len, "status:\t\tnot supported\n"); - else if (!docked) - len += sprintf(p + len, "status:\t\tundocked\n"); - else { - len += sprintf(p + len, "status:\t\tdocked\n"); - len += sprintf(p + len, "commands:\tdock, undock\n"); - } - - return len; -} - -static int dock_write(char *buf) -{ - char *cmd; - - if (!dock_docked()) - return -ENODEV; - - while ((cmd = next_cmd(&buf))) { - if (strlencmp(cmd, "undock") == 0) { - if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || - !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) - return -EIO; - } else if (strlencmp(cmd, "dock") == 0) { - if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) - return -EIO; - } else - return -EINVAL; - } - - return 0; -} - -#endif /* CONFIG_ACPI_IBM_DOCK */ - -/************************************************************************* - * Bay subdriver - */ - -#ifdef CONFIG_ACPI_IBM_BAY -static int bay_status_supported; -static int bay_status2_supported; -static int bay_eject_supported; -static int bay_eject2_supported; - -IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ - "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ - "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ - "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ - ); /* A21e, R30, R31 */ -IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ - "_EJ0", /* all others */ - ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ -IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ - "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ - ); /* all others */ -IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ - "_EJ0", /* 770x */ - ); /* all others */ - -static int bay_init(void) -{ - bay_status_supported = bay_handle && - acpi_evalf(bay_handle, NULL, "_STA", "qv"); - bay_status2_supported = bay2_handle && - acpi_evalf(bay2_handle, NULL, "_STA", "qv"); - - bay_eject_supported = bay_handle && bay_ej_handle && - (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); - bay_eject2_supported = bay2_handle && bay2_ej_handle && - (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); - - return 0; -} - -static void bay_notify(struct ibm_struct *ibm, u32 event) -{ - acpi_bus_generate_event(ibm->device, event, 0); -} - -#define bay_occupied(b) (_sta(b##_handle) & 1) - -static int bay_read(char *p) -{ - int len = 0; - int occupied = bay_occupied(bay); - int occupied2 = bay_occupied(bay2); - int eject, eject2; - - len += sprintf(p + len, "status:\t\t%s\n", bay_status_supported ? - (occupied ? "occupied" : "unoccupied") : - "not supported"); - if (bay_status2_supported) - len += sprintf(p + len, "status2:\t%s\n", occupied2 ? - "occupied" : "unoccupied"); - - eject = bay_eject_supported && occupied; - eject2 = bay_eject2_supported && occupied2; - - if (eject && eject2) - len += sprintf(p + len, "commands:\teject, eject2\n"); - else if (eject) - len += sprintf(p + len, "commands:\teject\n"); - else if (eject2) - len += sprintf(p + len, "commands:\teject2\n"); - - return len; -} - -static int bay_write(char *buf) -{ - char *cmd; - - if (!bay_eject_supported && !bay_eject2_supported) - return -ENODEV; - - while ((cmd = next_cmd(&buf))) { - if (bay_eject_supported && strlencmp(cmd, "eject") == 0) { - if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) - return -EIO; - } else if (bay_eject2_supported && - strlencmp(cmd, "eject2") == 0) { - if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) - return -EIO; - } else - return -EINVAL; - } - - return 0; -} -#endif /* CONFIG_ACPI_IBM_BAY */ - -/************************************************************************* - * CMOS subdriver - */ - -static int cmos_eval(int cmos_cmd) -{ - if (cmos_handle) - return acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd); - else - return 1; -} - -static int cmos_read(char *p) -{ - int len = 0; - - /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, - R30, R31, T20-22, X20-21 */ - if (!cmos_handle) - len += sprintf(p + len, "status:\t\tnot supported\n"); - else { - len += sprintf(p + len, "status:\t\tsupported\n"); - len += sprintf(p + len, "commands:\t ( is 0-21)\n"); - } - - return len; -} - -static int cmos_write(char *buf) -{ - char *cmd; - int cmos_cmd; - - if (!cmos_handle) - return -EINVAL; - - while ((cmd = next_cmd(&buf))) { - if (sscanf(cmd, "%u", &cmos_cmd) == 1 && - cmos_cmd >= 0 && cmos_cmd <= 21) { - /* cmos_cmd set */ - } else - return -EINVAL; - - if (!cmos_eval(cmos_cmd)) - return -EIO; - } - - return 0; -} - - -/************************************************************************* - * LED subdriver - */ - -static enum led_access_mode led_supported; - -IBM_HANDLE(led, ec, "SLED", /* 570 */ - "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ - "LED", /* all others */ - ); /* R30, R31 */ - -static int led_init(void) -{ - if (!led_handle) - /* led not supported on R30, R31 */ - led_supported = IBMACPI_LED_NONE; - else if (strlencmp(led_path, "SLED") == 0) - /* 570 */ - led_supported = IBMACPI_LED_570; - else if (strlencmp(led_path, "SYSL") == 0) - /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ - led_supported = IBMACPI_LED_OLD; - else - /* all others */ - led_supported = IBMACPI_LED_NEW; - - return 0; -} - -#define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking")) - -static int led_read(char *p) -{ - int len = 0; - - if (!led_supported) { - len += sprintf(p + len, "status:\t\tnot supported\n"); - return len; - } - len += sprintf(p + len, "status:\t\tsupported\n"); - - if (led_supported == IBMACPI_LED_570) { - /* 570 */ - int i, status; - for (i = 0; i < 8; i++) { - if (!acpi_evalf(ec_handle, - &status, "GLED", "dd", 1 << i)) - return -EIO; - len += sprintf(p + len, "%d:\t\t%s\n", - i, led_status(status)); - } - } - - len += sprintf(p + len, "commands:\t" - " on, off, blink ( is 0-7)\n"); - - return len; -} - -/* off, on, blink */ -static const int led_sled_arg1[] = { 0, 1, 3 }; -static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */ -static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */ -static const int led_led_arg1[] = { 0, 0x80, 0xc0 }; - -static int led_write(char *buf) -{ - char *cmd; - int led, ind, ret; - - if (!led_supported) - return -ENODEV; - - while ((cmd = next_cmd(&buf))) { - if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) - return -EINVAL; - - if (strstr(cmd, "off")) { - ind = 0; - } else if (strstr(cmd, "on")) { - ind = 1; - } else if (strstr(cmd, "blink")) { - ind = 2; - } else - return -EINVAL; - - if (led_supported == IBMACPI_LED_570) { - /* 570 */ - led = 1 << led; - if (!acpi_evalf(led_handle, NULL, NULL, "vdd", - led, led_sled_arg1[ind])) - return -EIO; - } else if (led_supported == IBMACPI_LED_OLD) { - /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ - led = 1 << led; - ret = ec_write(IBMACPI_LED_EC_HLMS, led); - if (ret >= 0) - ret = - ec_write(IBMACPI_LED_EC_HLBL, - led * led_exp_hlbl[ind]); - if (ret >= 0) - ret = - ec_write(IBMACPI_LED_EC_HLCL, - led * led_exp_hlcl[ind]); - if (ret < 0) - return ret; - } else { - /* all others */ - if (!acpi_evalf(led_handle, NULL, NULL, "vdd", - led, led_led_arg1[ind])) - return -EIO; - } - } - - return 0; -} - -/************************************************************************* - * Beep subdriver - */ - -IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ - -static int beep_read(char *p) -{ - int len = 0; - - if (!beep_handle) - len += sprintf(p + len, "status:\t\tnot supported\n"); - else { - len += sprintf(p + len, "status:\t\tsupported\n"); - len += sprintf(p + len, "commands:\t ( is 0-17)\n"); - } - - return len; -} - -static int beep_write(char *buf) -{ - char *cmd; - int beep_cmd; - - if (!beep_handle) - return -ENODEV; - - while ((cmd = next_cmd(&buf))) { - if (sscanf(cmd, "%u", &beep_cmd) == 1 && - beep_cmd >= 0 && beep_cmd <= 17) { - /* beep_cmd set */ - } else - return -EINVAL; - if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) - return -EIO; - } - - return 0; -} - -/************************************************************************* - * Thermal subdriver - */ - -static enum thermal_access_mode thermal_read_mode; - -static int thermal_init(void) -{ - u8 t, ta1, ta2; - int i; - int acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); - - if (ibm_thinkpad_ec_found && experimental) { - /* - * Direct EC access mode: sensors at registers - * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for - * non-implemented, thermal sensors return 0x80 when - * not available - */ - - ta1 = ta2 = 0; - for (i = 0; i < 8; i++) { - if (likely(acpi_ec_read(0x78 + i, &t))) { - ta1 |= t; - } else { - ta1 = 0; - break; - } - if (likely(acpi_ec_read(0xC0 + i, &t))) { - ta2 |= t; - } else { - ta1 = 0; - break; - } - } - if (ta1 == 0) { - /* This is sheer paranoia, but we handle it anyway */ - if (acpi_tmp7) { - printk(IBM_ERR - "ThinkPad ACPI EC access misbehaving, " - "falling back to ACPI TMPx access mode\n"); - thermal_read_mode = IBMACPI_THERMAL_ACPI_TMP07; - } else { - printk(IBM_ERR - "ThinkPad ACPI EC access misbehaving, " - "disabling thermal sensors access\n"); - thermal_read_mode = IBMACPI_THERMAL_NONE; - } - } else { - thermal_read_mode = - (ta2 != 0) ? - IBMACPI_THERMAL_TPEC_16 : IBMACPI_THERMAL_TPEC_8; - } - } else if (acpi_tmp7) { - if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { - /* 600e/x, 770e, 770x */ - thermal_read_mode = IBMACPI_THERMAL_ACPI_UPDT; - } else { - /* Standard ACPI TMPx access, max 8 sensors */ - thermal_read_mode = IBMACPI_THERMAL_ACPI_TMP07; - } - } else { - /* temperatures not supported on 570, G4x, R30, R31, R32 */ - thermal_read_mode = IBMACPI_THERMAL_NONE; - } - - return 0; -} - -static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) -{ - int i, t; - s8 tmp; - char tmpi[] = "TMPi"; - - if (!s) - return -EINVAL; - - switch (thermal_read_mode) { -#if IBMACPI_MAX_THERMAL_SENSORS >= 16 - case IBMACPI_THERMAL_TPEC_16: - for (i = 0; i < 8; i++) { - if (!acpi_ec_read(0xC0 + i, &tmp)) - return -EIO; - s->temp[i + 8] = tmp * 1000; - } - /* fallthrough */ -#endif - case IBMACPI_THERMAL_TPEC_8: - for (i = 0; i < 8; i++) { - if (!acpi_ec_read(0x78 + i, &tmp)) - return -EIO; - s->temp[i] = tmp * 1000; - } - return (thermal_read_mode == IBMACPI_THERMAL_TPEC_16) ? 16 : 8; - - case IBMACPI_THERMAL_ACPI_UPDT: - if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) - return -EIO; - for (i = 0; i < 8; i++) { - tmpi[3] = '0' + i; - if (!acpi_evalf(ec_handle, &t, tmpi, "d")) - return -EIO; - s->temp[i] = (t - 2732) * 100; - } - return 8; - - case IBMACPI_THERMAL_ACPI_TMP07: - for (i = 0; i < 8; i++) { - tmpi[3] = '0' + i; - if (!acpi_evalf(ec_handle, &t, tmpi, "d")) - return -EIO; - s->temp[i] = t * 1000; - } - return 8; - - case IBMACPI_THERMAL_NONE: - default: - return 0; - } -} - -static int thermal_read(char *p) -{ - int len = 0; - int n, i; - struct ibm_thermal_sensors_struct t; - - n = thermal_get_sensors(&t); - if (unlikely(n < 0)) - return n; - - len += sprintf(p + len, "temperatures:\t"); - - if (n > 0) { - for (i = 0; i < (n - 1); i++) - len += sprintf(p + len, "%d ", t.temp[i] / 1000); - len += sprintf(p + len, "%d\n", t.temp[i] / 1000); - } else - len += sprintf(p + len, "not supported\n"); - - return len; -} - -/************************************************************************* - * EC Dump subdriver - */ - -static u8 ecdump_regs[256]; - -static int ecdump_read(char *p) -{ - int len = 0; - int i, j; - u8 v; - - len += sprintf(p + len, "EC " - " +00 +01 +02 +03 +04 +05 +06 +07" - " +08 +09 +0a +0b +0c +0d +0e +0f\n"); - for (i = 0; i < 256; i += 16) { - len += sprintf(p + len, "EC 0x%02x:", i); - for (j = 0; j < 16; j++) { - if (!acpi_ec_read(i + j, &v)) - break; - if (v != ecdump_regs[i + j]) - len += sprintf(p + len, " *%02x", v); - else - len += sprintf(p + len, " %02x", v); - ecdump_regs[i + j] = v; - } - len += sprintf(p + len, "\n"); - if (j != 16) - break; - } - - /* These are way too dangerous to advertise openly... */ -#if 0 - len += sprintf(p + len, "commands:\t0x 0x" - " ( is 00-ff, is 00-ff)\n"); - len += sprintf(p + len, "commands:\t0x " - " ( is 00-ff, is 0-255)\n"); -#endif - return len; -} - -static int ecdump_write(char *buf) -{ - char *cmd; - int i, v; - - while ((cmd = next_cmd(&buf))) { - if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { - /* i and v set */ - } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { - /* i and v set */ - } else - return -EINVAL; - if (i >= 0 && i < 256 && v >= 0 && v < 256) { - if (!acpi_ec_write(i, v)) - return -EIO; - } else - return -EINVAL; - } - - return 0; -} - -/************************************************************************* - * Backlight/brightness subdriver - */ - -static struct backlight_device *ibm_backlight_device = NULL; - -static struct backlight_ops ibm_backlight_data = { - .get_brightness = brightness_get, - .update_status = brightness_update_status, -}; - -static int brightness_init(void) -{ - int b; - - b = brightness_get(NULL); - if (b < 0) - return b; - - ibm_backlight_device = backlight_device_register("ibm", NULL, NULL, - &ibm_backlight_data); - if (IS_ERR(ibm_backlight_device)) { - printk(IBM_ERR "Could not register backlight device\n"); - return PTR_ERR(ibm_backlight_device); - } - - ibm_backlight_device->props.max_brightness = 7; - ibm_backlight_device->props.brightness = b; - backlight_update_status(ibm_backlight_device); - - return 0; -} - -static void brightness_exit(void) -{ - if (ibm_backlight_device) { - backlight_device_unregister(ibm_backlight_device); - ibm_backlight_device = NULL; - } -} - -static int brightness_update_status(struct backlight_device *bd) -{ - return brightness_set( - (bd->props.fb_blank == FB_BLANK_UNBLANK && - bd->props.power == FB_BLANK_UNBLANK) ? - bd->props.brightness : 0); -} - -static int brightness_get(struct backlight_device *bd) -{ - u8 level; - if (!acpi_ec_read(brightness_offset, &level)) - return -EIO; - - level &= 0x7; - - return level; -} - -static int brightness_set(int value) -{ - int cmos_cmd, inc, i; - int current_value = brightness_get(NULL); - - value &= 7; - - cmos_cmd = value > current_value ? TP_CMOS_BRIGHTNESS_UP : TP_CMOS_BRIGHTNESS_DOWN; - inc = value > current_value ? 1 : -1; - for (i = current_value; i != value; i += inc) { - if (!cmos_eval(cmos_cmd)) - return -EIO; - if (!acpi_ec_write(brightness_offset, i + inc)) - return -EIO; - } - - return 0; -} - -static int brightness_read(char *p) -{ - int len = 0; - int level; - - if ((level = brightness_get(NULL)) < 0) { - len += sprintf(p + len, "level:\t\tunreadable\n"); - } else { - len += sprintf(p + len, "level:\t\t%d\n", level & 0x7); - len += sprintf(p + len, "commands:\tup, down\n"); - len += sprintf(p + len, "commands:\tlevel " - " ( is 0-7)\n"); - } - - return len; -} - -static int brightness_write(char *buf) -{ - int level; - int new_level; - char *cmd; - - while ((cmd = next_cmd(&buf))) { - if ((level = brightness_get(NULL)) < 0) - return level; - level &= 7; - - if (strlencmp(cmd, "up") == 0) { - new_level = level == 7 ? 7 : level + 1; - } else if (strlencmp(cmd, "down") == 0) { - new_level = level == 0 ? 0 : level - 1; - } else if (sscanf(cmd, "level %d", &new_level) == 1 && - new_level >= 0 && new_level <= 7) { - /* new_level set */ - } else - return -EINVAL; - - brightness_set(new_level); - } - - return 0; -} - -/************************************************************************* - * Volume subdriver - */ - -static int volume_read(char *p) -{ - int len = 0; - u8 level; - - if (!acpi_ec_read(volume_offset, &level)) { - len += sprintf(p + len, "level:\t\tunreadable\n"); - } else { - len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); - len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); - len += sprintf(p + len, "commands:\tup, down, mute\n"); - len += sprintf(p + len, "commands:\tlevel " - " ( is 0-15)\n"); - } - - return len; -} - -static int volume_write(char *buf) -{ - int cmos_cmd, inc, i; - u8 level, mute; - int new_level, new_mute; - char *cmd; - - while ((cmd = next_cmd(&buf))) { - if (!acpi_ec_read(volume_offset, &level)) - return -EIO; - new_mute = mute = level & 0x40; - new_level = level = level & 0xf; - - if (strlencmp(cmd, "up") == 0) { - if (mute) - new_mute = 0; - else - new_level = level == 15 ? 15 : level + 1; - } else if (strlencmp(cmd, "down") == 0) { - if (mute) - new_mute = 0; - else - new_level = level == 0 ? 0 : level - 1; - } else if (sscanf(cmd, "level %d", &new_level) == 1 && - new_level >= 0 && new_level <= 15) { - /* new_level set */ - } else if (strlencmp(cmd, "mute") == 0) { - new_mute = 0x40; - } else - return -EINVAL; - - if (new_level != level) { /* mute doesn't change */ - cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; - inc = new_level > level ? 1 : -1; - - if (mute && (!cmos_eval(cmos_cmd) || - !acpi_ec_write(volume_offset, level))) - return -EIO; - - for (i = level; i != new_level; i += inc) - if (!cmos_eval(cmos_cmd) || - !acpi_ec_write(volume_offset, i + inc)) - return -EIO; - - if (mute && (!cmos_eval(TP_CMOS_VOLUME_MUTE) || - !acpi_ec_write(volume_offset, - new_level + mute))) - return -EIO; - } - - if (new_mute != mute) { /* level doesn't change */ - cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; - - if (!cmos_eval(cmos_cmd) || - !acpi_ec_write(volume_offset, level + new_mute)) - return -EIO; - } - } - - return 0; -} - - -/************************************************************************* - * Fan subdriver - */ - -/* - * FAN ACCESS MODES - * - * IBMACPI_FAN_RD_ACPI_GFAN: - * ACPI GFAN method: returns fan level - * - * see IBMACPI_FAN_WR_ACPI_SFAN - * EC 0x2f not available if GFAN exists - * - * IBMACPI_FAN_WR_ACPI_SFAN: - * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) - * - * EC 0x2f might be available *for reading*, but never for writing. - * - * IBMACPI_FAN_WR_TPEC: - * ThinkPad EC register 0x2f (HFSP): fan control loop mode Supported - * on almost all ThinkPads - * - * Fan speed changes of any sort (including those caused by the - * disengaged mode) are usually done slowly by the firmware as the - * maximum ammount of fan duty cycle change per second seems to be - * limited. - * - * Reading is not available if GFAN exists. - * Writing is not available if SFAN exists. - * - * Bits - * 7 automatic mode engaged; - * (default operation mode of the ThinkPad) - * fan level is ignored in this mode. - * 6 disengage mode (takes precedence over bit 7); - * not available on all thinkpads. May disable - * the tachometer, and speeds up fan to 100% duty-cycle, - * which speeds it up far above the standard RPM - * levels. It is not impossible that it could cause - * hardware damage. - * 5-3 unused in some models. Extra bits for fan level - * in others, but still useless as all values above - * 7 map to the same speed as level 7 in these models. - * 2-0 fan level (0..7 usually) - * 0x00 = stop - * 0x07 = max (set when temperatures critical) - * Some ThinkPads may have other levels, see - * IBMACPI_FAN_WR_ACPI_FANS (X31/X40/X41) - * - * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at - * boot. Apparently the EC does not intialize it, so unless ACPI DSDT - * does so, its initial value is meaningless (0x07). - * - * For firmware bugs, refer to: - * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues - * - * ---- - * - * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): - * Main fan tachometer reading (in RPM) - * - * This register is present on all ThinkPads with a new-style EC, and - * it is known not to be present on the A21m/e, and T22, as there is - * something else in offset 0x84 according to the ACPI DSDT. Other - * ThinkPads from this same time period (and earlier) probably lack the - * tachometer as well. - * - * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare - * was never fixed by IBM to report the EC firmware version string - * probably support the tachometer (like the early X models), so - * detecting it is quite hard. We need more data to know for sure. - * - * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings - * might result. - * - * FIRMWARE BUG: when EC 0x2f bit 6 is set (disengaged mode), this - * register is not invalidated in ThinkPads that disable tachometer - * readings. Thus, the tachometer readings go stale. - * - * For firmware bugs, refer to: - * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues - * - * IBMACPI_FAN_WR_ACPI_FANS: - * ThinkPad X31, X40, X41. Not available in the X60. - * - * FANS ACPI handle: takes three arguments: low speed, medium speed, - * high speed. ACPI DSDT seems to map these three speeds to levels - * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH - * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") - * - * The speeds are stored on handles - * (FANA:FAN9), (FANC:FANB), (FANE:FAND). - * - * There are three default speed sets, acessible as handles: - * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H - * - * ACPI DSDT switches which set is in use depending on various - * factors. - * - * IBMACPI_FAN_WR_TPEC is also available and should be used to - * command the fan. The X31/X40/X41 seems to have 8 fan levels, - * but the ACPI tables just mention level 7. - */ - -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 void fan_watchdog_fire(struct work_struct *ignored); -static int fan_watchdog_maxinterval; -static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); - -IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ -IBM_HANDLE(gfan, ec, "GFAN", /* 570 */ - "\\FSPD", /* 600e/x, 770e, 770x */ - ); /* all others */ -IBM_HANDLE(sfan, ec, "SFAN", /* 570 */ - "JFNS", /* 770x-JL */ - ); /* all others */ - -static int fan_init(void) -{ - fan_status_access_mode = IBMACPI_FAN_NONE; - fan_control_access_mode = IBMACPI_FAN_WR_NONE; - fan_control_commands = 0; - fan_control_status_known = 1; - fan_watchdog_maxinterval = 0; - - if (gfan_handle) { - /* 570, 600e/x, 770e, 770x */ - fan_status_access_mode = IBMACPI_FAN_RD_ACPI_GFAN; - } else { - /* all other ThinkPads: note that even old-style - * ThinkPad ECs supports the fan control register */ - if (likely(acpi_ec_read(fan_status_offset, - &fan_control_initial_status))) { - fan_status_access_mode = IBMACPI_FAN_RD_TPEC; - - /* In some ThinkPads, neither the EC nor the ACPI - * DSDT initialize the fan status, and it ends up - * being set to 0x07 when it *could* be either - * 0x07 or 0x80. - * - * Enable for TP-1Y (T43), TP-78 (R51e), - * TP-76 (R52), TP-70 (T43, R52), which are known - * to be buggy. */ - if (fan_control_initial_status == 0x07 && - ibm_thinkpad_ec_found && - ((ibm_thinkpad_ec_found[0] == '1' && - ibm_thinkpad_ec_found[1] == 'Y') || - (ibm_thinkpad_ec_found[0] == '7' && - (ibm_thinkpad_ec_found[1] == '6' || - ibm_thinkpad_ec_found[1] == '8' || - ibm_thinkpad_ec_found[1] == '0')) - )) { - printk(IBM_NOTICE - "fan_init: initial fan status is " - "unknown, assuming it is in auto " - "mode\n"); - fan_control_status_known = 0; - } - } else { - printk(IBM_ERR - "ThinkPad ACPI EC access misbehaving, " - "fan status and control unavailable\n"); - return 0; - } - } - - if (sfan_handle) { - /* 570, 770x-JL */ - fan_control_access_mode = IBMACPI_FAN_WR_ACPI_SFAN; - fan_control_commands |= - IBMACPI_FAN_CMD_LEVEL | IBMACPI_FAN_CMD_ENABLE; - } else { - if (!gfan_handle) { - /* gfan without sfan means no fan control */ - /* all other models implement TP EC 0x2f control */ - - if (fans_handle) { - /* X31, X40, X41 */ - fan_control_access_mode = - IBMACPI_FAN_WR_ACPI_FANS; - fan_control_commands |= - IBMACPI_FAN_CMD_SPEED | - IBMACPI_FAN_CMD_LEVEL | - IBMACPI_FAN_CMD_ENABLE; - } else { - fan_control_access_mode = IBMACPI_FAN_WR_TPEC; - fan_control_commands |= - IBMACPI_FAN_CMD_LEVEL | - IBMACPI_FAN_CMD_ENABLE; - } - } - } - - return 0; -} - -static int fan_get_status(u8 *status) -{ - u8 s; - - /* TODO: - * Add IBMACPI_FAN_RD_ACPI_FANS ? */ - - switch (fan_status_access_mode) { - case IBMACPI_FAN_RD_ACPI_GFAN: - /* 570, 600e/x, 770e, 770x */ - - if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) - return -EIO; - - if (likely(status)) - *status = s & 0x07; - - break; - - case IBMACPI_FAN_RD_TPEC: - /* all except 570, 600e/x, 770e, 770x */ - if (unlikely(!acpi_ec_read(fan_status_offset, &s))) - return -EIO; - - if (likely(status)) - *status = s; - - break; - - default: - return -ENXIO; - } - - return 0; -} - -static void fan_exit(void) -{ - cancel_delayed_work(&fan_watchdog_task); - flush_scheduled_work(); -} - -static int fan_get_speed(unsigned int *speed) -{ - u8 hi, lo; - - switch (fan_status_access_mode) { - case IBMACPI_FAN_RD_TPEC: - /* all except 570, 600e/x, 770e, 770x */ - if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || - !acpi_ec_read(fan_rpm_offset + 1, &hi))) - return -EIO; - - if (likely(speed)) - *speed = (hi << 8) | lo; - - break; - - default: - return -ENXIO; - } - - return 0; -} - -static void fan_watchdog_fire(struct work_struct *ignored) -{ - printk(IBM_NOTICE "fan watchdog: enabling fan\n"); - if (fan_set_enable()) { - printk(IBM_ERR "fan watchdog: error while enabling fan\n"); - /* reschedule for later */ - fan_watchdog_reset(); - } -} - -static void fan_watchdog_reset(void) -{ - static int fan_watchdog_active = 0; - - if (fan_watchdog_active) - cancel_delayed_work(&fan_watchdog_task); - - if (fan_watchdog_maxinterval > 0) { - fan_watchdog_active = 1; - if (!schedule_delayed_work(&fan_watchdog_task, - msecs_to_jiffies(fan_watchdog_maxinterval - * 1000))) { - printk(IBM_ERR "failed to schedule the fan watchdog, " - "watchdog will not trigger\n"); - } - } else - fan_watchdog_active = 0; -} - -static int fan_set_level(int level) -{ - switch (fan_control_access_mode) { - case IBMACPI_FAN_WR_ACPI_SFAN: - if (level >= 0 && level <= 7) { - if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) - return -EIO; - } else - return -EINVAL; - break; - - case IBMACPI_FAN_WR_ACPI_FANS: - case IBMACPI_FAN_WR_TPEC: - if ((level != IBMACPI_FAN_EC_AUTO) && - (level != IBMACPI_FAN_EC_DISENGAGED) && - ((level < 0) || (level > 7))) - return -EINVAL; - - if (!acpi_ec_write(fan_status_offset, level)) - return -EIO; - else - fan_control_status_known = 1; - break; - - default: - return -ENXIO; - } - return 0; -} - -static int fan_set_enable(void) -{ - u8 s; - int rc; - - switch (fan_control_access_mode) { - case IBMACPI_FAN_WR_ACPI_FANS: - case IBMACPI_FAN_WR_TPEC: - if ((rc = fan_get_status(&s)) < 0) - return rc; - - /* Don't go out of emergency fan mode */ - if (s != 7) - s = IBMACPI_FAN_EC_AUTO; - - if (!acpi_ec_write(fan_status_offset, s)) - return -EIO; - else - fan_control_status_known = 1; - break; - - case IBMACPI_FAN_WR_ACPI_SFAN: - if ((rc = fan_get_status(&s)) < 0) - return rc; - - s &= 0x07; - - /* Set fan to at least level 4 */ - if (s < 4) - s = 4; - - if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) - return -EIO; - break; - - default: - return -ENXIO; - } - return 0; -} - -static int fan_set_disable(void) -{ - switch (fan_control_access_mode) { - case IBMACPI_FAN_WR_ACPI_FANS: - case IBMACPI_FAN_WR_TPEC: - if (!acpi_ec_write(fan_status_offset, 0x00)) - return -EIO; - else - fan_control_status_known = 1; - break; - - case IBMACPI_FAN_WR_ACPI_SFAN: - if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) - return -EIO; - break; - - default: - return -ENXIO; - } - return 0; -} - -static int fan_set_speed(int speed) -{ - switch (fan_control_access_mode) { - case IBMACPI_FAN_WR_ACPI_FANS: - if (speed >= 0 && speed <= 65535) { - if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", - speed, speed, speed)) - return -EIO; - } else - return -EINVAL; - break; - - default: - return -ENXIO; - } - return 0; -} - -static int fan_read(char *p) -{ - int len = 0; - int rc; - u8 status; - unsigned int speed = 0; - - switch (fan_status_access_mode) { - case IBMACPI_FAN_RD_ACPI_GFAN: - /* 570, 600e/x, 770e, 770x */ - if ((rc = fan_get_status(&status)) < 0) - return rc; - - len += sprintf(p + len, "status:\t\t%s\n" - "level:\t\t%d\n", - (status != 0) ? "enabled" : "disabled", status); - break; - - case IBMACPI_FAN_RD_TPEC: - /* all except 570, 600e/x, 770e, 770x */ - if ((rc = fan_get_status(&status)) < 0) - return rc; - - if (unlikely(!fan_control_status_known)) { - if (status != fan_control_initial_status) - fan_control_status_known = 1; - else - /* Return most likely status. In fact, it - * might be the only possible status */ - status = IBMACPI_FAN_EC_AUTO; - } - - len += sprintf(p + len, "status:\t\t%s\n", - (status != 0) ? "enabled" : "disabled"); - - /* No ThinkPad boots on disengaged mode, we can safely - * assume the tachometer is online if fan control status - * was unknown */ - if ((rc = fan_get_speed(&speed)) < 0) - return rc; - - len += sprintf(p + len, "speed:\t\t%d\n", speed); - - if (status & IBMACPI_FAN_EC_DISENGAGED) - /* Disengaged mode takes precedence */ - len += sprintf(p + len, "level:\t\tdisengaged\n"); - else if (status & IBMACPI_FAN_EC_AUTO) - len += sprintf(p + len, "level:\t\tauto\n"); - else - len += sprintf(p + len, "level:\t\t%d\n", status); - break; - - case IBMACPI_FAN_NONE: - default: - len += sprintf(p + len, "status:\t\tnot supported\n"); - } - - if (fan_control_commands & IBMACPI_FAN_CMD_LEVEL) { - len += sprintf(p + len, "commands:\tlevel "); - - switch (fan_control_access_mode) { - case IBMACPI_FAN_WR_ACPI_SFAN: - len += sprintf(p + len, " ( is 0-7)\n"); - break; - - default: - len += sprintf(p + len, " ( is 0-7, " - "auto, disengaged)\n"); - break; - } - } - - if (fan_control_commands & IBMACPI_FAN_CMD_ENABLE) - len += sprintf(p + len, "commands:\tenable, disable\n" - "commands:\twatchdog ( is 0 (off), " - "1-120 (seconds))\n"); - - if (fan_control_commands & IBMACPI_FAN_CMD_SPEED) - len += sprintf(p + len, "commands:\tspeed " - " ( is 0-65535)\n"); - - return len; -} - -static int fan_write_cmd_level(const char *cmd, int *rc) -{ - int level; - - if (strlencmp(cmd, "level auto") == 0) - level = IBMACPI_FAN_EC_AUTO; - else if (strlencmp(cmd, "level disengaged") == 0) - level = IBMACPI_FAN_EC_DISENGAGED; - else if (sscanf(cmd, "level %d", &level) != 1) - return 0; - - if ((*rc = fan_set_level(level)) == -ENXIO) - printk(IBM_ERR "level command accepted for unsupported " - "access mode %d", fan_control_access_mode); - - return 1; -} - -static int fan_write_cmd_enable(const char *cmd, int *rc) -{ - if (strlencmp(cmd, "enable") != 0) - return 0; - - if ((*rc = fan_set_enable()) == -ENXIO) - printk(IBM_ERR "enable command accepted for unsupported " - "access mode %d", fan_control_access_mode); - - return 1; -} - -static int fan_write_cmd_disable(const char *cmd, int *rc) -{ - if (strlencmp(cmd, "disable") != 0) - return 0; - - if ((*rc = fan_set_disable()) == -ENXIO) - printk(IBM_ERR "disable command accepted for unsupported " - "access mode %d", fan_control_access_mode); - - return 1; -} - -static int fan_write_cmd_speed(const char *cmd, int *rc) -{ - int speed; - - /* TODO: - * Support speed ? */ - - if (sscanf(cmd, "speed %d", &speed) != 1) - return 0; - - if ((*rc = fan_set_speed(speed)) == -ENXIO) - printk(IBM_ERR "speed command accepted for unsupported " - "access mode %d", fan_control_access_mode); - - return 1; -} - -static int fan_write_cmd_watchdog(const char *cmd, int *rc) -{ - int interval; - - if (sscanf(cmd, "watchdog %d", &interval) != 1) - return 0; - - if (interval < 0 || interval > 120) - *rc = -EINVAL; - else - fan_watchdog_maxinterval = interval; - - return 1; -} - -static int fan_write(char *buf) -{ - char *cmd; - int rc = 0; - - while (!rc && (cmd = next_cmd(&buf))) { - if (!((fan_control_commands & IBMACPI_FAN_CMD_LEVEL) && - fan_write_cmd_level(cmd, &rc)) && - !((fan_control_commands & IBMACPI_FAN_CMD_ENABLE) && - (fan_write_cmd_enable(cmd, &rc) || - fan_write_cmd_disable(cmd, &rc) || - fan_write_cmd_watchdog(cmd, &rc))) && - !((fan_control_commands & IBMACPI_FAN_CMD_SPEED) && - fan_write_cmd_speed(cmd, &rc)) - ) - rc = -EINVAL; - else if (!rc) - fan_watchdog_reset(); - } - - return rc; -} - -/**************************************************************************** - **************************************************************************** - * - * Infrastructure - * - **************************************************************************** - ****************************************************************************/ - -/* /proc support */ -static struct proc_dir_entry *proc_dir = NULL; - -/* Subdriver registry */ -static struct ibm_struct ibms[] = { - { - .name = "driver", - .init = ibm_acpi_driver_init, - .read = ibm_acpi_driver_read, - }, - { - .name = "hotkey", - .hid = IBM_HKEY_HID, - .init = hotkey_init, - .read = hotkey_read, - .write = hotkey_write, - .exit = hotkey_exit, - .notify = hotkey_notify, - .handle = &hkey_handle, - .type = ACPI_DEVICE_NOTIFY, - }, - { - .name = "bluetooth", - .init = bluetooth_init, - .read = bluetooth_read, - .write = bluetooth_write, - }, - { - .name = "wan", - .init = wan_init, - .read = wan_read, - .write = wan_write, - .experimental = 1, - }, - { - .name = "video", - .init = video_init, - .read = video_read, - .write = video_write, - .exit = video_exit, - }, - { - .name = "light", - .init = light_init, - .read = light_read, - .write = light_write, - }, -#ifdef CONFIG_ACPI_IBM_DOCK - { - .name = "dock", - .read = dock_read, - .write = dock_write, - .notify = dock_notify, - .handle = &dock_handle, - .type = ACPI_SYSTEM_NOTIFY, - }, - { - .name = "dock", - .hid = IBM_PCI_HID, - .notify = dock_notify, - .handle = &pci_handle, - .type = ACPI_SYSTEM_NOTIFY, - }, -#endif -#ifdef CONFIG_ACPI_IBM_BAY - { - .name = "bay", - .init = bay_init, - .read = bay_read, - .write = bay_write, - .notify = bay_notify, - .handle = &bay_handle, - .type = ACPI_SYSTEM_NOTIFY, - }, -#endif /* CONFIG_ACPI_IBM_BAY */ - { - .name = "cmos", - .read = cmos_read, - .write = cmos_write, - }, - { - .name = "led", - .init = led_init, - .read = led_read, - .write = led_write, - }, - { - .name = "beep", - .read = beep_read, - .write = beep_write, - }, - { - .name = "thermal", - .init = thermal_init, - .read = thermal_read, - }, - { - .name = "ecdump", - .read = ecdump_read, - .write = ecdump_write, - .experimental = 1, - }, - { - .name = "brightness", - .read = brightness_read, - .write = brightness_write, - .init = brightness_init, - .exit = brightness_exit, - }, - { - .name = "volume", - .read = volume_read, - .write = volume_write, - }, - { - .name = "fan", - .read = fan_read, - .write = fan_write, - .init = fan_init, - .exit = fan_exit, - .experimental = 1, - }, -}; - -/* - * Module and infrastructure proble, init and exit handling - */ - -static int __init ibm_init(struct ibm_struct *ibm) -{ - int ret; - struct proc_dir_entry *entry; - - if (ibm->experimental && !experimental) - return 0; - - if (ibm->hid) { - ret = register_ibmacpi_subdriver(ibm); - if (ret < 0) - return ret; - ibm->driver_registered = 1; - } - - if (ibm->init) { - ret = ibm->init(); - if (ret != 0) - return ret; - ibm->init_called = 1; - } - - if (ibm->read) { - entry = create_proc_entry(ibm->name, - S_IFREG | S_IRUGO | S_IWUSR, - proc_dir); - if (!entry) { - printk(IBM_ERR "unable to create proc entry %s\n", - ibm->name); - return -ENODEV; - } - entry->owner = THIS_MODULE; - entry->data = ibm; - entry->read_proc = &dispatch_read; - if (ibm->write) - entry->write_proc = &dispatch_write; - ibm->proc_created = 1; - } - - if (ibm->notify) { - ret = setup_notify(ibm); - if (ret == -ENODEV) { - printk(IBM_NOTICE "disabling subdriver %s\n", - ibm->name); - ibm_exit(ibm); - return 0; - } - if (ret < 0) - return ret; - } - - return 0; -} - -static void ibm_exit(struct ibm_struct *ibm) -{ - if (ibm->notify_installed) - acpi_remove_notify_handler(*ibm->handle, ibm->type, - dispatch_notify); - - if (ibm->proc_created) - remove_proc_entry(ibm->name, proc_dir); - - if (ibm->init_called && ibm->exit) - ibm->exit(); - - if (ibm->driver_registered) { - acpi_bus_unregister_driver(ibm->driver); - kfree(ibm->driver); - } -} - -/* Probing */ - -static char *ibm_thinkpad_ec_found = NULL; - -static char* __init check_dmi_for_ec(void) -{ - struct dmi_device *dev = NULL; - char ec_fw_string[18]; - - /* - * ThinkPad T23 or newer, A31 or newer, R50e or newer, - * X32 or newer, all Z series; Some models must have an - * up-to-date BIOS or they will not be detected. - * - * See http://thinkwiki.org/wiki/List_of_DMI_IDs - */ - while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { - if (sscanf(dev->name, - "IBM ThinkPad Embedded Controller -[%17c", - ec_fw_string) == 1) { - ec_fw_string[sizeof(ec_fw_string) - 1] = 0; - ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; - return kstrdup(ec_fw_string, GFP_KERNEL); - } - } - return NULL; -} - -/* Module init, exit, parameters */ - -static int __init set_ibm_param(const char *val, struct kernel_param *kp) -{ - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(ibms); i++) - if (strcmp(ibms[i].name, kp->name) == 0 && ibms[i].write) { - if (strlen(val) > sizeof(ibms[i].param) - 2) - return -ENOSPC; - strcpy(ibms[i].param, val); - strcat(ibms[i].param, ","); - return 0; - } - - return -EINVAL; -} - -static int experimental; -module_param(experimental, int, 0); - -#define IBM_PARAM(feature) \ - module_param_call(feature, set_ibm_param, NULL, NULL, 0) - -IBM_PARAM(hotkey); -IBM_PARAM(bluetooth); -IBM_PARAM(video); -IBM_PARAM(light); -#ifdef CONFIG_ACPI_IBM_DOCK -IBM_PARAM(dock); -#endif -#ifdef CONFIG_ACPI_IBM_BAY -IBM_PARAM(bay); -#endif /* CONFIG_ACPI_IBM_BAY */ -IBM_PARAM(cmos); -IBM_PARAM(led); -IBM_PARAM(beep); -IBM_PARAM(ecdump); -IBM_PARAM(brightness); -IBM_PARAM(volume); -IBM_PARAM(fan); - -static int __init acpi_ibm_init(void) -{ - int ret, i; - - if (acpi_disabled) - return -ENODEV; - - /* ec is required because many other handles are relative to it */ - IBM_HANDLE_INIT(ec); - if (!ec_handle) { - printk(IBM_ERR "ec object not found\n"); - return -ENODEV; - } - - /* Models with newer firmware report the EC in DMI */ - ibm_thinkpad_ec_found = check_dmi_for_ec(); - - /* these handles are not required */ - IBM_HANDLE_INIT(vid); - IBM_HANDLE_INIT(vid2); - IBM_HANDLE_INIT(ledb); - IBM_HANDLE_INIT(led); - IBM_HANDLE_INIT(hkey); - IBM_HANDLE_INIT(lght); - IBM_HANDLE_INIT(cmos); -#ifdef CONFIG_ACPI_IBM_DOCK - IBM_HANDLE_INIT(dock); -#endif - IBM_HANDLE_INIT(pci); -#ifdef CONFIG_ACPI_IBM_BAY - IBM_HANDLE_INIT(bay); - if (bay_handle) - IBM_HANDLE_INIT(bay_ej); - IBM_HANDLE_INIT(bay2); - if (bay2_handle) - IBM_HANDLE_INIT(bay2_ej); -#endif /* CONFIG_ACPI_IBM_BAY */ - IBM_HANDLE_INIT(beep); - IBM_HANDLE_INIT(ecrd); - IBM_HANDLE_INIT(ecwr); - IBM_HANDLE_INIT(fans); - IBM_HANDLE_INIT(gfan); - IBM_HANDLE_INIT(sfan); - - proc_dir = proc_mkdir(IBM_DIR, acpi_root_dir); - if (!proc_dir) { - printk(IBM_ERR "unable to create proc dir %s", IBM_DIR); - acpi_ibm_exit(); - return -ENODEV; - } - proc_dir->owner = THIS_MODULE; - - for (i = 0; i < ARRAY_SIZE(ibms); i++) { - ret = ibm_init(&ibms[i]); - if (ret >= 0 && *ibms[i].param) - ret = ibms[i].write(ibms[i].param); - if (ret < 0) { - acpi_ibm_exit(); - return ret; - } - } - - return 0; -} - -static void acpi_ibm_exit(void) -{ - int i; - - for (i = ARRAY_SIZE(ibms) - 1; i >= 0; i--) - ibm_exit(&ibms[i]); - - if (proc_dir) - remove_proc_entry(IBM_DIR, acpi_root_dir); - - if (ibm_thinkpad_ec_found) - kfree(ibm_thinkpad_ec_found); -} - -module_init(acpi_ibm_init); -module_exit(acpi_ibm_exit); diff --git a/drivers/acpi/ibm_acpi.h b/drivers/acpi/ibm_acpi.h deleted file mode 100644 index 7ebaaa4..0000000 --- a/drivers/acpi/ibm_acpi.h +++ /dev/null @@ -1,437 +0,0 @@ -/* - * ibm_acpi.h - IBM 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 __IBM_ACPI_H__ -#define __IBM_ACPI_H__ - -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -#include -#include -#include - -#include -#include - - -/**************************************************************************** - * Main driver - */ - -#define IBM_NAME "ibm" -#define IBM_DESC "IBM ThinkPad ACPI Extras" -#define IBM_FILE "ibm_acpi" -#define IBM_URL "http://ibm-acpi.sf.net/" - -#define IBM_DIR IBM_NAME - -#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 ibm_acpi_driver_init(void); -static int ibm_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_ACPI_IBM_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_ACPI_IBM_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_ACPI_IBM_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_ACPI_IBM_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 /* __IBM_ACPI_H */ -- cgit v1.1