/* * thinkpad_acpi.c - 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 "0.16" #define TPACPI_SYSFS_VERSION 0x020000 /* * Changelog: * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to * drivers/misc. * * 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 "thinkpad_acpi.h" MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); MODULE_DESCRIPTION(IBM_DESC); MODULE_VERSION(IBM_VERSION); MODULE_LICENSE("GPL"); /* Please remove this in year 2009 */ MODULE_ALIAS("ibm_acpi"); /* * DMI matching for module autoloading * * See http://thinkwiki.org/wiki/List_of_DMI_IDs * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads * * Only models listed in thinkwiki will be supported, so add yours * if it is not there yet. */ #define IBM_BIOS_MODULE_ALIAS(__type) \ MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") /* Non-ancient thinkpads */ MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); /* Ancient thinkpad BIOSes have to be identified by * BIOS type or model number, and there are far less * BIOS types than model numbers... */ IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); #define __unused __attribute__ ((unused)) static enum { TPACPI_LIFE_INIT = 0, TPACPI_LIFE_RUNNING, TPACPI_LIFE_EXITING, } tpacpi_lifecycle; /**************************************************************************** **************************************************************************** * * ACPI Helpers and device model * **************************************************************************** ****************************************************************************/ /************************************************************************* * ACPI basic handles */ static acpi_handle root_handle; #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; } static int issue_thinkpad_cmos_command(int cmos_cmd) { if (!cmos_handle) return -ENXIO; if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) return -EIO; return 0; } /************************************************************************* * ACPI device model */ static void drv_acpi_handle_init(char *name, acpi_handle *handle, acpi_handle parent, char **paths, int num_paths, char **path) { int i; acpi_status status; vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", name); for (i = 0; i < num_paths; i++) { status = acpi_get_handle(parent, paths[i], handle); if (ACPI_SUCCESS(status)) { *path = paths[i]; dbg_printk(TPACPI_DBG_INIT, "Found ACPI handle %s for %s\n", *path, name); return; } } vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", name); *handle = NULL; } static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) { struct ibm_struct *ibm = data; if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) return; if (!ibm || !ibm->acpi || !ibm->acpi->notify) return; ibm->acpi->notify(ibm, event); } static int __init setup_acpi_notify(struct ibm_struct *ibm) { acpi_status status; int rc; BUG_ON(!ibm->acpi); if (!*ibm->acpi->handle) return 0; vdbg_printk(TPACPI_DBG_INIT, "setting up ACPI notify for %s\n", ibm->name); rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); if (rc < 0) { printk(IBM_ERR "acpi_bus_get_device(%s) failed: %d\n", ibm->name, rc); return -ENODEV; } acpi_driver_data(ibm->acpi->device) = ibm; sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", IBM_ACPI_EVENT_PREFIX, ibm->name); status = acpi_install_notify_handler(*ibm->acpi->handle, ibm->acpi->type, dispatch_acpi_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->flags.acpi_notify_installed = 1; return 0; } static int __init tpacpi_device_add(struct acpi_device *device) { return 0; } static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) { int rc; dbg_printk(TPACPI_DBG_INIT, "registering %s as an ACPI driver\n", ibm->name); BUG_ON(!ibm->acpi); ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); if (!ibm->acpi->driver) { printk(IBM_ERR "kzalloc(ibm->driver) failed\n"); return -ENOMEM; } sprintf(ibm->acpi->driver->name, "%s_%s", IBM_NAME, ibm->name); ibm->acpi->driver->ids = ibm->acpi->hid; ibm->acpi->driver->ops.add = &tpacpi_device_add; rc = acpi_bus_register_driver(ibm->acpi->driver); if (rc < 0) { printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n", ibm->name, rc); kfree(ibm->acpi->driver); ibm->acpi->driver = NULL; } else if (!rc) ibm->flags.acpi_driver_registered = 1; return rc; } /**************************************************************************** **************************************************************************** * * Procfs Helpers * **************************************************************************** ****************************************************************************/ static int dispatch_procfs_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_procfs_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; } /**************************************************************************** **************************************************************************** * * Device model: input, hwmon and platform * **************************************************************************** ****************************************************************************/ static struct platform_device *tpacpi_pdev; static struct platform_device *tpacpi_sensors_pdev; static struct device *tpacpi_hwmon; static struct input_dev *tpacpi_inputdev; static struct mutex tpacpi_inputdev_send_mutex; static int tpacpi_resume_handler(struct platform_device *pdev) { struct ibm_struct *ibm, *itmp; list_for_each_entry_safe(ibm, itmp, &tpacpi_all_drivers, all_drivers) { if (ibm->resume) (ibm->resume)(); } return 0; } static struct platform_driver tpacpi_pdriver = { .driver = { .name = IBM_DRVR_NAME, .owner = THIS_MODULE, }, .resume = tpacpi_resume_handler, }; static struct platform_driver tpacpi_hwmon_pdriver = { .driver = { .name = IBM_HWMON_DRVR_NAME, .owner = THIS_MODULE, }, }; /************************************************************************* * thinkpad-acpi driver attributes */ /* interface_version --------------------------------------------------- */ static ssize_t tpacpi_driver_interface_version_show( struct device_driver *drv, char *buf) { return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); } static DRIVER_ATTR(interface_version, S_IRUGO, tpacpi_driver_interface_version_show, NULL); /* debug_level --------------------------------------------------------- */ static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, char *buf) { return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); } static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, const char *buf, size_t count) { unsigned long t; if (parse_strtoul(buf, 0xffff, &t)) return -EINVAL; dbg_level = t; return count; } static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, tpacpi_driver_debug_show, tpacpi_driver_debug_store); /* version ------------------------------------------------------------- */ static ssize_t tpacpi_driver_version_show(struct device_driver *drv, char *buf) { return snprintf(buf, PAGE_SIZE, "%s v%s\n", IBM_DESC, IBM_VERSION); } static DRIVER_ATTR(version, S_IRUGO, tpacpi_driver_version_show, NULL); /* --------------------------------------------------------------------- */ static struct driver_attribute* tpacpi_driver_attributes[] = { &driver_attr_debug_level, &driver_attr_version, &driver_attr_interface_version, }; static int __init tpacpi_create_driver_attributes(struct device_driver *drv) { int i, res; i = 0; res = 0; while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { res = driver_create_file(drv, tpacpi_driver_attributes[i]); i++; } return res; } static void tpacpi_remove_driver_attributes(struct device_driver *drv) { int i; for(i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) driver_remove_file(drv, tpacpi_driver_attributes[i]); } /************************************************************************* * sysfs support helpers */ struct attribute_set_obj { struct attribute_set s; struct attribute *a; } __attribute__((packed)); static struct attribute_set *create_attr_set(unsigned int max_members, const char* name) { struct attribute_set_obj *sobj; if (max_members == 0) return NULL; /* Allocates space for implicit NULL at the end too */ sobj = kzalloc(sizeof(struct attribute_set_obj) + max_members * sizeof(struct attribute *), GFP_KERNEL); if (!sobj) return NULL; sobj->s.max_members = max_members; sobj->s.group.attrs = &sobj->a; sobj->s.group.name = name; return &sobj->s; } /* not multi-threaded safe, use it in a single thread per set */ static int add_to_attr_set(struct attribute_set* s, struct attribute *attr) { if (!s || !attr) return -EINVAL; if (s->members >= s->max_members) return -ENOMEM; s->group.attrs[s->members] = attr; s->members++; return 0; } static int add_many_to_attr_set(struct attribute_set* s, struct attribute **attr, unsigned int count) { int i, res; for (i = 0; i < count; i++) { res = add_to_attr_set(s, attr[i]); if (res) return res; } return 0; } static void delete_attr_set(struct attribute_set* s, struct kobject *kobj) { sysfs_remove_group(kobj, &s->group); destroy_attr_set(s); } static int parse_strtoul(const char *buf, unsigned long max, unsigned long *value) { char *endp; while (*buf && isspace(*buf)) buf++; *value = simple_strtoul(buf, &endp, 0); while (*endp && isspace(*endp)) endp++; if (*endp || *value > max) return -EINVAL; return 0; } /**************************************************************************** **************************************************************************** * * Subdrivers * **************************************************************************** ****************************************************************************/ /************************************************************************* * thinkpad-acpi init subdriver */ static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) { printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION); printk(IBM_INFO "%s\n", IBM_URL); printk(IBM_INFO "ThinkPad BIOS %s, EC %s\n", (thinkpad_id.bios_version_str) ? thinkpad_id.bios_version_str : "unknown", (thinkpad_id.ec_version_str) ? thinkpad_id.ec_version_str : "unknown"); if (thinkpad_id.vendor && thinkpad_id.model_str) printk(IBM_INFO "%s %s\n", (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? "IBM" : ((thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) ? "Lenovo" : "Unknown vendor"), thinkpad_id.model_str); return 0; } static int thinkpad_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; } static struct ibm_struct thinkpad_acpi_driver_data = { .name = "driver", .read = thinkpad_acpi_driver_read, }; /************************************************************************* * Hotkey subdriver */ static int hotkey_orig_status; static u32 hotkey_orig_mask; static u32 hotkey_all_mask; static u32 hotkey_reserved_mask; static u16 *hotkey_keycode_map; static struct attribute_set *hotkey_dev_attributes; static int hotkey_get_wlsw(int *status) { if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) return -EIO; return 0; } /* sysfs hotkey enable ------------------------------------------------- */ static ssize_t hotkey_enable_show(struct device *dev, struct device_attribute *attr, char *buf) { int res, status; u32 mask; res = hotkey_get(&status, &mask); if (res) return res; return snprintf(buf, PAGE_SIZE, "%d\n", status); } static ssize_t hotkey_enable_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { unsigned long t; int res, status; u32 mask; if (parse_strtoul(buf, 1, &t)) return -EINVAL; res = hotkey_get(&status, &mask); if (!res) res = hotkey_set(t, mask); return (res) ? res : count; } static struct device_attribute dev_attr_hotkey_enable = __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, hotkey_enable_show, hotkey_enable_store); /* sysfs hotkey mask --------------------------------------------------- */ static ssize_t hotkey_mask_show(struct device *dev, struct device_attribute *attr, char *buf) { int res, status; u32 mask; res = hotkey_get(&status, &mask); if (res) return res; return snprintf(buf, PAGE_SIZE, "0x%08x\n", mask); } static ssize_t hotkey_mask_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { unsigned long t; int res, status; u32 mask; if (parse_strtoul(buf, 0xffffffffUL, &t)) return -EINVAL; res = hotkey_get(&status, &mask); if (!res) hotkey_set(status, t); return (res) ? res : count; } static struct device_attribute dev_attr_hotkey_mask = __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, hotkey_mask_show, hotkey_mask_store); /* sysfs hotkey bios_enabled ------------------------------------------- */ static ssize_t hotkey_bios_enabled_show(struct device *dev, struct device_attribute *attr, char *buf) { return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); } static struct device_attribute dev_attr_hotkey_bios_enabled = __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); /* sysfs hotkey bios_mask ---------------------------------------------- */ static ssize_t hotkey_bios_mask_show(struct device *dev, struct device_attribute *attr, char *buf) { return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); } static struct device_attribute dev_attr_hotkey_bios_mask = __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); /* sysfs hotkey all_mask ----------------------------------------------- */ static ssize_t hotkey_all_mask_show(struct device *dev, struct device_attribute *attr, char *buf) { return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_all_mask); } static struct device_attribute dev_attr_hotkey_all_mask = __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); /* sysfs hotkey recommended_mask --------------------------------------- */ static ssize_t hotkey_recommended_mask_show(struct device *dev, struct device_attribute *attr, char *buf) { return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_all_mask & ~hotkey_reserved_mask); } static struct device_attribute dev_attr_hotkey_recommended_mask = __ATTR(hotkey_recommended_mask, S_IRUGO, hotkey_recommended_mask_show, NULL); /* sysfs hotkey radio_sw ----------------------------------------------- */ static ssize_t hotkey_radio_sw_show(struct device *dev, struct device_attribute *attr, char *buf) { int res, s; res = hotkey_get_wlsw(&s); if (res < 0) return res; return snprintf(buf, PAGE_SIZE, "%d\n", !!s); } static struct device_attribute dev_attr_hotkey_radio_sw = __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); /* sysfs hotkey report_mode -------------------------------------------- */ static ssize_t hotkey_report_mode_show(struct device *dev, struct device_attribute *attr, char *buf) { return snprintf(buf, PAGE_SIZE, "%d\n", (hotkey_report_mode != 0) ? hotkey_report_mode : 1); } static struct device_attribute dev_attr_hotkey_report_mode = __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); /* --------------------------------------------------------------------- */ static struct attribute *hotkey_attributes[] __initdata = { &dev_attr_hotkey_enable.attr, &dev_attr_hotkey_report_mode.attr, }; static struct attribute *hotkey_mask_attributes[] __initdata = { &dev_attr_hotkey_mask.attr, &dev_attr_hotkey_bios_enabled.attr, &dev_attr_hotkey_bios_mask.attr, &dev_attr_hotkey_all_mask.attr, &dev_attr_hotkey_recommended_mask.attr, }; static int __init hotkey_init(struct ibm_init_struct *iibm) { static u16 ibm_keycode_map[] __initdata = { /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, /* Scan codes 0x0C to 0x0F: Other ACPI HKEY hot keys */ KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ KEY_UNKNOWN, /* 0x0D: FN+INSERT */ KEY_UNKNOWN, /* 0x0E: FN+DELETE */ KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ /* Scan codes 0x10 to 0x1F: Extended ACPI HKEY hot keys */ KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ KEY_VOLUMEUP, /* 0x14: VOLUME UP */ KEY_VOLUMEDOWN, /* 0x15: VOLUME DOWN */ KEY_MUTE, /* 0x16: MUTE */ KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ /* (assignments unknown, please report if found) */ KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, }; static u16 lenovo_keycode_map[] __initdata = { /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, /* Scan codes 0x0C to 0x0F: Other ACPI HKEY hot keys */ KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ KEY_UNKNOWN, /* 0x0D: FN+INSERT */ KEY_UNKNOWN, /* 0x0E: FN+DELETE */ KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ /* Scan codes 0x10 to 0x1F: Extended ACPI HKEY hot keys */ KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ KEY_VOLUMEUP, /* 0x14: VOLUME UP */ KEY_VOLUMEDOWN, /* 0x15: VOLUME DOWN */ KEY_MUTE, /* 0x16: MUTE */ KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ /* (assignments unknown, please report if found) */ KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, }; #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) int res, i; int status; int hkeyv; vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); BUG_ON(!tpacpi_inputdev); IBM_ACPIHANDLE_INIT(hkey); mutex_init(&hotkey_mutex); /* hotkey not supported on 570 */ tp_features.hotkey = hkey_handle != NULL; vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", str_supported(tp_features.hotkey)); if (tp_features.hotkey) { hotkey_dev_attributes = create_attr_set(8, NULL); if (!hotkey_dev_attributes) return -ENOMEM; res = add_many_to_attr_set(hotkey_dev_attributes, hotkey_attributes, ARRAY_SIZE(hotkey_attributes)); if (res) return res; /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking for HKEY interface version 0x100 */ if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { if ((hkeyv >> 8) != 1) { printk(IBM_ERR "unknown version of the " "HKEY interface: 0x%x\n", hkeyv); printk(IBM_ERR "please report this to %s\n", IBM_MAIL); } else { /* * MHKV 0x100 in A31, R40, R40e, * T4x, X31, and later * */ tp_features.hotkey_mask = 1; } } vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", str_supported(tp_features.hotkey_mask)); if (tp_features.hotkey_mask) { if (!acpi_evalf(hkey_handle, &hotkey_all_mask, "MHKA", "qd")) { printk(IBM_ERR "missing MHKA handler, " "please report this to %s\n", IBM_MAIL); hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ } } res = hotkey_get(&hotkey_orig_status, &hotkey_orig_mask); if (!res && tp_features.hotkey_mask) { res = add_many_to_attr_set(hotkey_dev_attributes, hotkey_mask_attributes, ARRAY_SIZE(hotkey_mask_attributes)); } /* Not all thinkpads have a hardware radio switch */ if (!res && acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { tp_features.hotkey_wlsw = 1; printk(IBM_INFO "radio switch found; radios are %s\n", enabled(status, 0)); res = add_to_attr_set(hotkey_dev_attributes, &dev_attr_hotkey_radio_sw.attr); } if (!res) res = register_attr_set_with_sysfs( hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); if (res) return res; /* Set up key map */ hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, GFP_KERNEL); if (!hotkey_keycode_map) { printk(IBM_ERR "failed to allocate memory for key map\n"); return -ENOMEM; } if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { dbg_printk(TPACPI_DBG_INIT, "using Lenovo default hot key map\n"); memcpy(hotkey_keycode_map, &lenovo_keycode_map, TPACPI_HOTKEY_MAP_SIZE); } else { dbg_printk(TPACPI_DBG_INIT, "using IBM default hot key map\n"); memcpy(hotkey_keycode_map, &ibm_keycode_map, TPACPI_HOTKEY_MAP_SIZE); } set_bit(EV_KEY, tpacpi_inputdev->evbit); set_bit(EV_MSC, tpacpi_inputdev->evbit); set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; tpacpi_inputdev->keycode = hotkey_keycode_map; for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { if (hotkey_keycode_map[i] != KEY_RESERVED) { set_bit(hotkey_keycode_map[i], tpacpi_inputdev->keybit); } else { if (i < sizeof(hotkey_reserved_mask)*8) hotkey_reserved_mask |= 1 << i; } } if (tp_features.hotkey_wlsw) { set_bit(EV_SW, tpacpi_inputdev->evbit); set_bit(SW_RADIO, tpacpi_inputdev->swbit); } dbg_printk(TPACPI_DBG_INIT, "enabling hot key handling\n"); res = hotkey_set(1, (hotkey_all_mask & ~hotkey_reserved_mask) | hotkey_orig_mask); if (res) return res; dbg_printk(TPACPI_DBG_INIT, "legacy hot key reporting over procfs %s\n", (hotkey_report_mode < 2) ? "enabled" : "disabled"); } return (tp_features.hotkey)? 0 : 1; } static void hotkey_exit(void) { int res; if (tp_features.hotkey) { dbg_printk(TPACPI_DBG_EXIT, "restoring original hotkey mask\n"); res = hotkey_set(hotkey_orig_status, hotkey_orig_mask); if (res) printk(IBM_ERR "failed to restore hotkey to BIOS defaults\n"); } if (hotkey_dev_attributes) { delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); hotkey_dev_attributes = NULL; } } static void tpacpi_input_send_key(unsigned int scancode, unsigned int keycode) { if (keycode != KEY_RESERVED) { mutex_lock(&tpacpi_inputdev_send_mutex); input_report_key(tpacpi_inputdev, keycode, 1); if (keycode == KEY_UNKNOWN) input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); input_sync(tpacpi_inputdev); input_report_key(tpacpi_inputdev, keycode, 0); if (keycode == KEY_UNKNOWN) input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); input_sync(tpacpi_inputdev); mutex_unlock(&tpacpi_inputdev_send_mutex); } } static void tpacpi_input_send_radiosw(void) { int wlsw; mutex_lock(&tpacpi_inputdev_send_mutex); if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { input_report_switch(tpacpi_inputdev, SW_RADIO, !!wlsw); input_sync(tpacpi_inputdev); } mutex_unlock(&tpacpi_inputdev_send_mutex); } static void hotkey_notify(struct ibm_struct *ibm, u32 event) { u32 hkey; unsigned int keycode, scancode; int send_acpi_ev; int ignore_acpi_ev; if (event != 0x80) { printk(IBM_ERR "unknown HKEY notification event %d\n", event); /* forward it to userspace, maybe it knows how to handle it */ acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, ibm->acpi->device->dev.bus_id, event, 0); return; } while (1) { if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { printk(IBM_ERR "failed to retrieve HKEY event\n"); return; } if (hkey == 0) { /* queue empty */ return; } send_acpi_ev = 0; ignore_acpi_ev = 0; switch (hkey >> 12) { case 1: /* 0x1000-0x1FFF: key presses */ scancode = hkey & 0xfff; if (scancode > 0 && scancode < 0x21) { scancode--; keycode = hotkey_keycode_map[scancode]; tpacpi_input_send_key(scancode, keycode); } else { printk(IBM_ERR "hotkey 0x%04x out of range for keyboard map\n", hkey); send_acpi_ev = 1; } break; case 5: /* 0x5000-0x5FFF: LID */ /* we don't handle it through this path, just * eat up known LID events */ if (hkey != 0x5001 && hkey != 0x5002) { printk(IBM_ERR "unknown LID-related HKEY event: 0x%04x\n", hkey); send_acpi_ev = 1; } else { ignore_acpi_ev = 1; } break; case 7: /* 0x7000-0x7FFF: misc */ if (tp_features.hotkey_wlsw && hkey == 0x7000) { tpacpi_input_send_radiosw(); break; } /* fallthrough to default */ default: /* case 2: dock-related */ /* 0x2305 - T43 waking up due to bay lever eject while aslept */ /* case 3: ultra-bay related. maybe bay in dock? */ /* 0x3003 - T43 after wake up by bay lever eject (0x2305) */ printk(IBM_NOTICE "unhandled HKEY event 0x%04x\n", hkey); send_acpi_ev = 1; } /* Legacy events */ if (!ignore_acpi_ev && (send_acpi_ev || hotkey_report_mode < 2)) { acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey); } /* netlink events */ if (!ignore_acpi_ev && send_acpi_ev) { acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, ibm->acpi->device->dev.bus_id, event, hkey); } } } static void hotkey_resume(void) { tpacpi_input_send_radiosw(); } /* * Call with hotkey_mutex held */ static int hotkey_get(int *status, u32 *mask) { if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) return -EIO; if (tp_features.hotkey_mask) if (!acpi_evalf(hkey_handle, mask, "DHKN", "d")) return -EIO; return 0; } /* * Call with hotkey_mutex held */ static int hotkey_set(int status, u32 mask) { int i; if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) return -EIO; if (tp_features.hotkey_mask) for (i = 0; i < 32; i++) { int bit = ((1 << i) & mask) != 0; if (!acpi_evalf(hkey_handle, NULL, "MHKM", "vdd", i + 1, bit)) return -EIO; } return 0; } /* procfs -------------------------------------------------------------- */ static int hotkey_read(char *p) { int res, status; u32 mask; int len = 0; if (!tp_features.hotkey) { len += sprintf(p + len, "status:\t\tnot supported\n"); return len; } res = mutex_lock_interruptible(&hotkey_mutex); if (res < 0) return res; res = hotkey_get(&status, &mask); mutex_unlock(&hotkey_mutex); if (res) return res; len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); if (tp_features.hotkey_mask) { len += sprintf(p + len, "mask:\t\t0x%08x\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 res, status; u32 mask; char *cmd; int do_cmd = 0; if (!tp_features.hotkey) return -ENODEV; res = mutex_lock_interruptible(&hotkey_mutex); if (res < 0) return res; res = hotkey_get(&status, &mask); if (res) goto errexit; res = 0; 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 { res = -EINVAL; goto errexit; } do_cmd = 1; } if (do_cmd) res = hotkey_set(status, mask); errexit: mutex_unlock(&hotkey_mutex); return res; } static const struct acpi_device_id ibm_htk_device_ids[] = { {IBM_HKEY_HID, 0}, {"", 0}, }; static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { .hid = ibm_htk_device_ids, .notify = hotkey_notify, .handle = &hkey_handle, .type = ACPI_DEVICE_NOTIFY, }; static struct ibm_struct hotkey_driver_data = { .name = "hotkey", .read = hotkey_read, .write = hotkey_write, .exit = hotkey_exit, .resume = hotkey_resume, .acpi = &ibm_hotkey_acpidriver, }; /************************************************************************* * Bluetooth subdriver */ /* sysfs bluetooth enable ---------------------------------------------- */ static ssize_t bluetooth_enable_show(struct device *dev, struct device_attribute *attr, char *buf) { int status; status = bluetooth_get_radiosw(); if (status < 0) return status; return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); } static ssize_t bluetooth_enable_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { unsigned long t; int res; if (parse_strtoul(buf, 1, &t)) return -EINVAL; res = bluetooth_set_radiosw(t); return (res) ? res : count; } static struct device_attribute dev_attr_bluetooth_enable = __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, bluetooth_enable_show, bluetooth_enable_store); /* --------------------------------------------------------------------- */ static struct attribute *bluetooth_attributes[] = { &dev_attr_bluetooth_enable.attr, NULL }; static const struct attribute_group bluetooth_attr_group = { .attrs = bluetooth_attributes, }; static int __init bluetooth_init(struct ibm_init_struct *iibm) { int res; int status = 0; vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); IBM_ACPIHANDLE_INIT(hkey); /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ tp_features.bluetooth = hkey_handle && acpi_evalf(hkey_handle, &status, "GBDC", "qd"); vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", str_supported(tp_features.bluetooth), status); if (tp_features.bluetooth) { if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { /* no bluetooth hardware present in system */ tp_features.bluetooth = 0; dbg_printk(TPACPI_DBG_INIT, "bluetooth hardware not installed\n"); } else { res = sysfs_create_group(&tpacpi_pdev->dev.kobj, &bluetooth_attr_group); if (res) return res; } } return (tp_features.bluetooth)? 0 : 1; } static void bluetooth_exit(void) { sysfs_remove_group(&tpacpi_pdev->dev.kobj, &bluetooth_attr_group); } static int bluetooth_get_radiosw(void) { int status; if (!tp_features.bluetooth) return -ENODEV; if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) return -EIO; return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); } static int bluetooth_set_radiosw(int radio_on) { int status; if (!tp_features.bluetooth) return -ENODEV; if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) return -EIO; if (radio_on) status |= TP_ACPI_BLUETOOTH_RADIOSSW; else status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) return -EIO; return 0; } /* procfs -------------------------------------------------------------- */ static int bluetooth_read(char *p) { int len = 0; int status = bluetooth_get_radiosw(); if (!tp_features.bluetooth) len += sprintf(p + len, "status:\t\tnot supported\n"); else { len += sprintf(p + len, "status:\t\t%s\n", (status)? "enabled" : "disabled"); len += sprintf(p + len, "commands:\tenable, disable\n"); } return len; } static int bluetooth_write(char *buf) { char *cmd; if (!tp_features.bluetooth) return -ENODEV; while ((cmd = next_cmd(&buf))) { if (strlencmp(cmd, "enable") == 0) { bluetooth_set_radiosw(1); } else if (strlencmp(cmd, "disable") == 0) { bluetooth_set_radiosw(0); } else return -EINVAL; } return 0; } static struct ibm_struct bluetooth_driver_data = { .name = "bluetooth", .read = bluetooth_read, .write = bluetooth_write, .exit = bluetooth_exit, }; /************************************************************************* * Wan subdriver */ /* sysfs wan enable ---------------------------------------------------- */ static ssize_t wan_enable_show(struct device *dev, struct device_attribute *attr, char *buf) { int status; status = wan_get_radiosw(); if (status < 0) return status; return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); } static ssize_t wan_enable_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { unsigned long t; int res; if (parse_strtoul(buf, 1, &t)) return -EINVAL; res = wan_set_radiosw(t); return (res) ? res : count; } static struct device_attribute dev_attr_wan_enable = __ATTR(wwan_enable, S_IWUSR | S_IRUGO, wan_enable_show, wan_enable_store); /* --------------------------------------------------------------------- */ static struct attribute *wan_attributes[] = { &dev_attr_wan_enable.attr, NULL }; static const struct attribute_group wan_attr_group = { .attrs = wan_attributes, }; static int __init wan_init(struct ibm_init_struct *iibm) { int res; int status = 0; vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); IBM_ACPIHANDLE_INIT(hkey); tp_features.wan = hkey_handle && acpi_evalf(hkey_handle, &status, "GWAN", "qd"); vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", str_supported(tp_features.wan), status); if (tp_features.wan) { if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { /* no wan hardware present in system */ tp_features.wan = 0; dbg_printk(TPACPI_DBG_INIT, "wan hardware not installed\n"); } else { res = sysfs_create_group(&tpacpi_pdev->dev.kobj, &wan_attr_group); if (res) return res; } } return (tp_features.wan)? 0 : 1; } static void wan_exit(void) { sysfs_remove_group(&tpacpi_pdev->dev.kobj, &wan_attr_group); } static int wan_get_radiosw(void) { int status; if (!tp_features.wan) return -ENODEV; if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) return -EIO; return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); } static int wan_set_radiosw(int radio_on) { int status; if (!tp_features.wan) return -ENODEV; if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) return -EIO; if (radio_on) status |= TP_ACPI_WANCARD_RADIOSSW; else status &= ~TP_ACPI_WANCARD_RADIOSSW; if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) return -EIO; return 0; } /* procfs -------------------------------------------------------------- */ static int wan_read(char *p) { int len = 0; int status = wan_get_radiosw(); if (!tp_features.wan) len += sprintf(p + len, "status:\t\tnot supported\n"); else { len += sprintf(p + len, "status:\t\t%s\n", (status)? "enabled" : "disabled"); len += sprintf(p + len, "commands:\tenable, disable\n"); } return len; } static int wan_write(char *buf) { char *cmd; if (!tp_features.wan) return -ENODEV; while ((cmd = next_cmd(&buf))) { if (strlencmp(cmd, "enable") == 0) { wan_set_radiosw(1); } else if (strlencmp(cmd, "disable") == 0) { wan_set_radiosw(0); } else return -EINVAL; } return 0; } static struct ibm_struct wan_driver_data = { .name = "wan", .read = wan_read, .write = wan_write, .exit = wan_exit, .flags.experimental = 1, }; /************************************************************************* * 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 __init video_init(struct ibm_init_struct *iibm) { int ivga; vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); IBM_ACPIHANDLE_INIT(vid); IBM_ACPIHANDLE_INIT(vid2); 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 = TPACPI_VIDEO_NONE; else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) /* 570 */ video_supported = TPACPI_VIDEO_570; else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) /* 600e/x, 770e, 770x */ video_supported = TPACPI_VIDEO_770; else /* all others */ video_supported = TPACPI_VIDEO_NEW; vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", str_supported(video_supported != TPACPI_VIDEO_NONE), video_supported); return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; } static void video_exit(void) { dbg_printk(TPACPI_DBG_EXIT, "restoring original video autoswitch mode\n"); if (video_autosw_set(video_orig_autosw)) printk(IBM_ERR "error while trying to restore original " "video autoswitch mode\n"); } static int video_outputsw_get(void) { int status = 0; int i; switch (video_supported) { case TPACPI_VIDEO_570: if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", TP_ACPI_VIDEO_570_PHSCMD)) return -EIO; status = i & TP_ACPI_VIDEO_570_PHSMASK; break; case TPACPI_VIDEO_770: if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) return -EIO; if (i) status |= TP_ACPI_VIDEO_S_LCD; if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) return -EIO; if (i) status |= TP_ACPI_VIDEO_S_CRT; break; case TPACPI_VIDEO_NEW: if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || !acpi_evalf(NULL, &i, "\\VCDC", "d")) return -EIO; if (i) status |= TP_ACPI_VIDEO_S_CRT; if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || !acpi_evalf(NULL, &i, "\\VCDL", "d")) return -EIO; if (i) status |= TP_ACPI_VIDEO_S_LCD; if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) return -EIO; if (i) status |= TP_ACPI_VIDEO_S_DVI; break; default: return -ENOSYS; } return status; } static int video_outputsw_set(int status) { int autosw; int res = 0; switch (video_supported) { case TPACPI_VIDEO_570: res = acpi_evalf(NULL, NULL, "\\_SB.PHS2", "vdd", TP_ACPI_VIDEO_570_PHS2CMD, status | TP_ACPI_VIDEO_570_PHS2SET); break; case TPACPI_VIDEO_770: autosw = video_autosw_get(); if (autosw < 0) return autosw; res = video_autosw_set(1); if (res) return res; res = acpi_evalf(vid_handle, NULL, "ASWT", "vdd", status * 0x100, 0); if (!autosw && video_autosw_set(autosw)) { printk(IBM_ERR "video auto-switch left enabled due to error\n"); return -EIO; } break; case TPACPI_VIDEO_NEW: res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); break; default: return -ENOSYS; } return (res)? 0 : -EIO; } static int video_autosw_get(void) { int autosw = 0; switch (video_supported) { case TPACPI_VIDEO_570: if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) return -EIO; break; case TPACPI_VIDEO_770: case TPACPI_VIDEO_NEW: if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) return -EIO; break; default: return -ENOSYS; } return autosw & 1; } static int video_autosw_set(int enable) { if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) return -EIO; return 0; } static int video_outputsw_cycle(void) { int autosw = video_autosw_get(); int res; if (autosw < 0) return autosw; switch (video_supported) { case TPACPI_VIDEO_570: res = video_autosw_set(1); if (res) return res; res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); break; case TPACPI_VIDEO_770: case TPACPI_VIDEO_NEW: res = video_autosw_set(1); if (res) return res; res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); break; default: return -ENOSYS; } if (!autosw && video_autosw_set(autosw)) { printk(IBM_ERR "video auto-switch left enabled due to error\n"); return -EIO; } return (res)? 0 : -EIO; } static int video_expand_toggle(void) { switch (video_supported) { case TPACPI_VIDEO_570: return acpi_evalf(ec_handle, NULL, "_Q17", "v")? 0 : -EIO; case TPACPI_VIDEO_770: return acpi_evalf(vid_handle, NULL, "VEXP", "v")? 0 : -EIO; case TPACPI_VIDEO_NEW: return acpi_evalf(NULL, NULL, "\\VEXP", "v")? 0 : -EIO; default: return -ENOSYS; } /* not reached */ } static int video_read(char *p) { int status, autosw; int len = 0; if (video_supported == TPACPI_VIDEO_NONE) { len += sprintf(p + len, "status:\t\tnot supported\n"); return len; } status = video_outputsw_get(); if (status < 0) return status; autosw = video_autosw_get(); if (autosw < 0) return autosw; 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 == TPACPI_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 == TPACPI_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; int res; if (video_supported == TPACPI_VIDEO_NONE) return -ENODEV; enable = 0; disable = 0; while ((cmd = next_cmd(&buf))) { if (strlencmp(cmd, "lcd_enable") == 0) { enable |= TP_ACPI_VIDEO_S_LCD; } else if (strlencmp(cmd, "lcd_disable") == 0) { disable |= TP_ACPI_VIDEO_S_LCD; } else if (strlencmp(cmd, "crt_enable") == 0) { enable |= TP_ACPI_VIDEO_S_CRT; } else if (strlencmp(cmd, "crt_disable") == 0) { disable |= TP_ACPI_VIDEO_S_CRT; } else if (video_supported == TPACPI_VIDEO_NEW && strlencmp(cmd, "dvi_enable") == 0) { enable |= TP_ACPI_VIDEO_S_DVI; } else if (video_supported == TPACPI_VIDEO_NEW && strlencmp(cmd, "dvi_disable") == 0) { disable |= TP_ACPI_VIDEO_S_DVI; } else if (strlencmp(cmd, "auto_enable") == 0) { res = video_autosw_set(1); if (res) return res; } else if (strlencmp(cmd, "auto_disable") == 0) { res = video_autosw_set(0); if (res) return res; } else if (strlencmp(cmd, "video_switch") == 0) { res = video_outputsw_cycle(); if (res) return res; } else if (strlencmp(cmd, "expand_toggle") == 0) { res = video_expand_toggle(); if (res) return res; } else return -EINVAL; } if (enable || disable) { status = video_outputsw_get(); if (status < 0) return status; res = video_outputsw_set((status & ~disable) | enable); if (res) return res; } return 0; } static struct ibm_struct video_driver_data = { .name = "video", .read = video_read, .write = video_write, .exit = video_exit, }; /************************************************************************* * Light (thinklight) subdriver */ IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */ static int __init light_init(struct ibm_init_struct *iibm) { vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); IBM_ACPIHANDLE_INIT(ledb); IBM_ACPIHANDLE_INIT(lght); IBM_ACPIHANDLE_INIT(cmos); /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; if (tp_features.light) /* light status not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ tp_features.light_status = acpi_evalf(ec_handle, NULL, "KBLT", "qv"); vdbg_printk(TPACPI_DBG_INIT, "light is %s\n", str_supported(tp_features.light)); return (tp_features.light)? 0 : 1; } static int light_read(char *p) { int len = 0; int status = 0; if (!tp_features.light) { len += sprintf(p + len, "status:\t\tnot supported\n"); } else if (!tp_features.light_status) { 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 (!tp_features.light) 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; } static struct ibm_struct light_driver_data = { .name = "light", .read = light_read, .write = light_write, }; /************************************************************************* * Dock subdriver */ #ifdef CONFIG_THINKPAD_ACPI_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 */ /* don't list other alternatives as we install a notify handler on the 570 */ IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ static const struct acpi_device_id ibm_pci_device_ids[] = { {PCI_ROOT_HID_STRING, 0}, {"", 0}, }; static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { { .notify = dock_notify, .handle = &dock_handle, .type = ACPI_SYSTEM_NOTIFY, }, { /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. * We just use it to get notifications of dock hotplug * in very old thinkpads */ .hid = ibm_pci_device_ids, .notify = dock_notify, .handle = &pci_handle, .type = ACPI_SYSTEM_NOTIFY, }, }; static struct ibm_struct dock_driver_data[2] = { { .name = "dock", .read = dock_read, .write = dock_write, .acpi = &ibm_dock_acpidriver[0], }, { .name = "dock", .acpi = &ibm_dock_acpidriver[1], }, }; #define dock_docked() (_sta(dock_handle) & 1) static int __init dock_init(struct ibm_init_struct *iibm) { vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); IBM_ACPIHANDLE_INIT(dock); vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", str_supported(dock_handle != NULL)); return (dock_handle)? 0 : 1; } static int __init dock_init2(struct ibm_init_struct *iibm) { int dock2_needed; vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); if (dock_driver_data[0].flags.acpi_driver_registered && dock_driver_data[0].flags.acpi_notify_installed) { IBM_ACPIHANDLE_INIT(pci); dock2_needed = (pci_handle != NULL); vdbg_printk(TPACPI_DBG_INIT, "dock PCI handler for the TP 570 is %s\n", str_supported(dock2_needed)); } else { vdbg_printk(TPACPI_DBG_INIT, "dock subdriver part 2 not required\n"); dock2_needed = 0; } return (dock2_needed)? 0 : 1; } static void dock_notify(struct ibm_struct *ibm, u32 event) { int docked = dock_docked(); int pci = ibm->acpi->hid && ibm->acpi->device && acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); int data; if (event == 1 && !pci) /* 570 */ data = 1; /* button */ else if (event == 1 && pci) /* 570 */ data = 3; /* dock */ else if (event == 3 && docked) data = 1; /* button */ else if (event == 3 && !docked) data = 2; /* undock */ else if (event == 0 && docked) data = 3; /* dock */ else { printk(IBM_ERR "unknown dock event %d, status %d\n", event, _sta(dock_handle)); data = 0; /* unknown */ } acpi_bus_generate_proc_event(ibm->acpi->device, event, data); acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, ibm->acpi->device->dev.bus_id, event, data); } 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_THINKPAD_ACPI_DOCK */ /************************************************************************* * Bay subdriver */ #ifdef CONFIG_THINKPAD_ACPI_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 */ static int __init bay_init(struct ibm_init_struct *iibm) { vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); IBM_ACPIHANDLE_INIT(bay); if (bay_handle) IBM_ACPIHANDLE_INIT(bay_ej); IBM_ACPIHANDLE_INIT(bay2); if (bay2_handle) IBM_ACPIHANDLE_INIT(bay2_ej); tp_features.bay_status = bay_handle && acpi_evalf(bay_handle, NULL, "_STA", "qv"); tp_features.bay_status2 = bay2_handle && acpi_evalf(bay2_handle, NULL, "_STA", "qv"); tp_features.bay_eject = bay_handle && bay_ej_handle && (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); vdbg_printk(TPACPI_DBG_INIT, "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", str_supported(tp_features.bay_status), str_supported(tp_features.bay_eject), str_supported(tp_features.bay_status2), str_supported(tp_features.bay_eject2)); return (tp_features.bay_status || tp_features.bay_eject || tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; } static void bay_notify(struct ibm_struct *ibm, u32 event) { acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, ibm->acpi->device->dev.bus_id, 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", tp_features.bay_status ? (occupied ? "occupied" : "unoccupied") : "not supported"); if (tp_features.bay_status2) len += sprintf(p + len, "status2:\t%s\n", occupied2 ? "occupied" : "unoccupied"); eject = tp_features.bay_eject && occupied; eject2 = tp_features.bay_eject2 && 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 (!tp_features.bay_eject && !tp_features.bay_eject2) return -ENODEV; while ((cmd = next_cmd(&buf))) { if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) return -EIO; } else if (tp_features.bay_eject2 && strlencmp(cmd, "eject2") == 0) { if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) return -EIO; } else return -EINVAL; } return 0; } static struct tp_acpi_drv_struct ibm_bay_acpidriver = { .notify = bay_notify, .handle = &bay_handle, .type = ACPI_SYSTEM_NOTIFY, }; static struct ibm_struct bay_driver_data = { .name = "bay", .read = bay_read, .write = bay_write, .acpi = &ibm_bay_acpidriver, }; #endif /* CONFIG_THINKPAD_ACPI_BAY */ /************************************************************************* * CMOS subdriver */ /* sysfs cmos_command -------------------------------------------------- */ static ssize_t cmos_command_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { unsigned long cmos_cmd; int res; if (parse_strtoul(buf, 21, &cmos_cmd)) return -EINVAL; res = issue_thinkpad_cmos_command(cmos_cmd); return (res)? res : count; } static struct device_attribute dev_attr_cmos_command = __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); /* --------------------------------------------------------------------- */ static int __init cmos_init(struct ibm_init_struct *iibm) { int res; vdbg_printk(TPACPI_DBG_INIT, "initializing cmos commands subdriver\n"); IBM_ACPIHANDLE_INIT(cmos); vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", str_supported(cmos_handle != NULL)); res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); if (res) return res; return (cmos_handle)? 0 : 1; } static void cmos_exit(void) { device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); } 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, res; while ((cmd = next_cmd(&buf))) { if (sscanf(cmd, "%u", &cmos_cmd) == 1 && cmos_cmd >= 0 && cmos_cmd <= 21) { /* cmos_cmd set */ } else return -EINVAL; res = issue_thinkpad_cmos_command(cmos_cmd); if (res) return res; } return 0; } static struct ibm_struct cmos_driver_data = { .name = "cmos", .read = cmos_read, .write = cmos_write, .exit = cmos_exit, }; /************************************************************************* * 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 __init led_init(struct ibm_init_struct *iibm) { vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); IBM_ACPIHANDLE_INIT(led); if (!led_handle) /* led not supported on R30, R31 */ led_supported = TPACPI_LED_NONE; else if (strlencmp(led_path, "SLED") == 0) /* 570 */ led_supported = TPACPI_LED_570; else if (strlencmp(led_path, "SYSL") == 0) /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ led_supported = TPACPI_LED_OLD; else /* all others */ led_supported = TPACPI_LED_NEW; vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", str_supported(led_supported), led_supported); return (led_supported != TPACPI_LED_NONE)? 0 : 1; } #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 == TPACPI_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; whi