diff options
Diffstat (limited to 'drivers/misc/thinkpad_acpi.c')
| -rw-r--r-- | drivers/misc/thinkpad_acpi.c | 4815 |
1 files changed, 0 insertions, 4815 deletions
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c deleted file mode 100644 index 6c0b2f0a51a..00000000000 --- a/drivers/misc/thinkpad_acpi.c +++ /dev/null @@ -1,4815 +0,0 @@ -/* - * thinkpad_acpi.c - ThinkPad ACPI Extras - * - * - * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> - * Copyright (C) 2006-2007 Henrique de Moraes Holschuh <hmh@hmh.eng.br> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -#define IBM_VERSION "0.16" -#define TPACPI_SYSFS_VERSION 0x010000 - -/* - * 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 <lentinj@dial.pipex.com> - * 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 <brix@gentoo.org> - * fix parameter passing on module loading - * thanks to Rusty Russell <rusty@rustcorp.com.au> - * thanks to Jim Radford <radford@blackbean.org> - * 2004-11-08 0.8 fix init error case, don't return from a macro - * thanks to Chris Wright <chrisw@osdl.org> - * 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)) - -/**************************************************************************** - **************************************************************************** - * - * 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 (!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 class_device *tpacpi_hwmon; -static struct input_dev *tpacpi_inputdev; - - -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, -}; - - -/************************************************************************* - * 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; - - *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_RESERVED, /* 0x0F: FN+HOME (brightness up) */ - /* Scan codes 0x10 to 0x1F: Extended ACPI HKEY hot keys */ - KEY_RESERVED, /* 0x10: FN+END (brightness down) */ - KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ - KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ - KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ - KEY_RESERVED, /* 0x14: VOLUME UP */ - KEY_RESERVED, /* 0x15: VOLUME DOWN */ - KEY_RESERVED, /* 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_RESERVED, /* 0x14: VOLUME UP */ - KEY_RESERVED, /* 0x15: VOLUME DOWN */ - KEY_RESERVED, /* 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; - - 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 */ - tp_features.hotkey_mask = - acpi_evalf(hkey_handle, NULL, "DHKN", "qv"); - - vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", - str_supported(tp_features.hotkey_mask)); - - if (tp_features.hotkey_mask) { - /* MHKA available in A31, R40, R40e, T4x, X31, and later */ - if (!acpi_evalf(hkey_handle, &hotkey_all_mask, - "MHKA", "qd")) - 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) { - 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); - } -} - -static void tpacpi_input_send_radiosw(void) -{ - int wlsw; - - if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) - input_report_switch(tpacpi_inputdev, - SW_RADIO, !!wlsw); -} - -static void hotkey_notify(struct ibm_struct *ibm, u32 event) -{ - u32 hkey; - unsigned int keycode, scancode; - int send_acpi_ev = 0; - - if (event == 0x80 && acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { - 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 hotkey event: 0x%04x\n", - hkey); - send_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; - } - } else { - printk(IBM_ERR "unknown hotkey notification event %d\n", event); - hkey = 0; - send_acpi_ev = 1; - } - - /* Legacy events */ - if (send_acpi_ev || hotkey_report_mode < 2) - acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey); - - /* netlink events */ - if (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, <mask>\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<cmd> (<cmd> 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" - "<led> on, <led> off, <led> blink (<led> 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 == TPACPI_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 == TPACPI_LED_OLD) { - /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ - led = 1 << led; - ret = ec_write(TPACPI_LED_EC_HLMS, led); - if (ret >= 0) - ret = - ec_write(TPACPI_LED_EC_HLBL, - led * led_exp_hlbl[ind]); - if (ret >= 0) - ret = - ec_write(TPACPI_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; -} - -static struct ibm_struct led_driver_data = { - .name = "led", - .read = led_read, - .write = led_write, -}; - -/************************************************************************* - * Beep subdriver - */ - -IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ - -static int __init beep_init(struct ibm_init_struct *iibm) -{ - vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); - - IBM_ACPIHANDLE_INIT(beep); - - vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", - str_supported(beep_handle != NULL)); - - return (beep_handle)? 0 : 1; -} - -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<cmd> (<cmd> 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; -} - -static struct ibm_struct beep_driver_data = { - .name = "beep", - .read = beep_read, - .write = beep_write, -}; - -/************************************************************************* - * Thermal subdriver - */ - -static enum thermal_access_mode thermal_read_mode; - -/* sysfs temp##_input -------------------------------------------------- */ - -static ssize_t thermal_temp_input_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct sensor_device_attribute *sensor_attr = - to_sensor_dev_attr(attr); - int idx = sensor_attr->index; - s32 value; - int res; - - res = thermal_get_sensor(idx, &value); - if (res) - return res; - if (value == TP_EC_THERMAL_TMP_NA * 1000) - return -ENXIO; - - return snprintf(buf, PAGE_SIZE, "%d\n", value); -} - -#define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ - SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, thermal_temp_input_show, NULL, _idxB) - -static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { - THERMAL_SENSOR_ATTR_TEMP(1, 0), - THERMAL_SENSOR_ATTR_TEMP(2, 1), - THERMAL_SENSOR_ATTR_TEMP(3, 2), - THERMAL_SENSOR_ATTR_TEMP(4, 3), - THERMAL_SENSOR_ATTR_TEMP(5, 4), - THERMAL_SENSOR_ATTR_TEMP(6, 5), - THERMAL_SENSOR_ATTR_TEMP(7, 6), - THERMAL_SENSOR_ATTR_TEMP(8, 7), - THERMAL_SENSOR_ATTR_TEMP(9, 8), - THERMAL_SENSOR_ATTR_TEMP(10, 9), - THERMAL_SENSOR_ATTR_TEMP(11, 10), - THERMAL_SENSOR_ATTR_TEMP(12, 11), - THERMAL_SENSOR_ATTR_TEMP(13, 12), - THERMAL_SENSOR_ATTR_TEMP(14, 13), - THERMAL_SENSOR_ATTR_TEMP(15, 14), - THERMAL_SENSOR_ATTR_TEMP(16, 15), -}; - -#define THERMAL_ATTRS(X) \ - &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr - -static struct attribute *thermal_temp_input_attr[] = { - THERMAL_ATTRS(8), - THERMAL_ATTRS(9), - THERMAL_ATTRS(10), - THERMAL_ATTRS(11), - THERMAL_ATTRS(12), - THERMAL_ATTRS(13), - THERMAL_ATTRS(14), - THERMAL_ATTRS(15), - THERMAL_ATTRS(0), - THERMAL_ATTRS(1), - THERMAL_ATTRS(2), - THERMAL_ATTRS(3), - THERMAL_ATTRS(4), - THERMAL_ATTRS(5), - THERMAL_ATTRS(6), - THERMAL_ATTRS(7), - NULL -}; - -static const struct attribute_group thermal_temp_input16_group = { - .attrs = thermal_temp_input_attr -}; - -static const struct attribute_group thermal_temp_input8_group = { - .attrs = &thermal_temp_input_attr[8] -}; - -#undef THERMAL_SENSOR_ATTR_TEMP -#undef THERMAL_ATTRS - -/* --------------------------------------------------------------------- */ - -static int __init thermal_init(struct ibm_init_struct *iibm) -{ - u8 t, ta1, ta2; - int i; - int acpi_tmp7; - int res; - - vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); - - acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); - - if (thinkpad_id.ec_model) { - /* - * 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 (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { - ta1 |= t; - } else { - ta1 = 0; - break; - } - if (acpi_ec_read(TP_EC_THERMAL_TMP8 + 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 = TPACPI_THERMAL_ACPI_TMP07; - } else { - printk(IBM_ERR - "ThinkPad ACPI EC access misbehaving, " - "disabling thermal sensors access\n"); - thermal_read_mode = TPACPI_THERMAL_NONE; - } - } else { - thermal_read_mode = - (ta2 != 0) ? - TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; - } - } else if (acpi_tmp7) { - if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { - /* 600e/x, 770e, 770x */ - thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; - } else { - /* Standard ACPI TMPx access, max 8 sensors */ - thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; - } - } else { - /* temperatures not supported on 570, G4x, R30, R31, R32 */ - thermal_read_mode = TPACPI_THERMAL_NONE; - } - - vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", - str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), - thermal_read_mode); - - switch(thermal_read_mode) { - case TPACPI_THERMAL_TPEC_16: - res = sysfs_create_group(&tpacpi_pdev->dev.kobj, - &thermal_temp_input16_group); - if (res) - return res; - break; - case TPACPI_THERMAL_TPEC_8: - case TPACPI_THERMAL_ACPI_TMP07: - case TPACPI_THERMAL_ACPI_UPDT: - res = sysfs_create_group(&tpacpi_pdev->dev.kobj, - &thermal_temp_input8_group); - if (res) - return res; - break; - case TPACPI_THERMAL_NONE: - default: - return 1; - } - - return 0; -} - -static void thermal_exit(void) -{ - switch(thermal_read_mode) { - case TPACPI_THERMAL_TPEC_16: - sysfs_remove_group(&tpacpi_pdev->dev.kobj, - &thermal_temp_input16_group); - break; - case TPACPI_THERMAL_TPEC_8: - case TPACPI_THERMAL_ACPI_TMP07: - case TPACPI_THERMAL_ACPI_UPDT: - sysfs_remove_group(&tpacpi_pdev->dev.kobj, - &thermal_temp_input16_group); - break; - case TPACPI_THERMAL_NONE: - default: - break; - } -} - -/* idx is zero-based */ -static int thermal_get_sensor(int idx, s32 *value) -{ - int t; - s8 tmp; - char tmpi[5]; - - t = TP_EC_THERMAL_TMP0; - - switch (thermal_read_mode) { -#if TPACPI_MAX_THERMAL_SENSORS >= 16 - case TPACPI_THERMAL_TPEC_16: - if (idx >= 8 && idx <= 15) { - t = TP_EC_THERMAL_TMP8; - idx -= 8; - } - /* fallthrough */ -#endif - case TPACPI_THERMAL_TPEC_8: - if (idx <= 7) { - if (!acpi_ec_read(t + idx, &tmp)) - return -EIO; - *value = tmp * 1000; - return 0; - } - break; - - case TPACPI_THERMAL_ACPI_UPDT: - if (idx <= 7) { - snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); - if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) - return -EIO; - if (!acpi_evalf(ec_handle, &t, tmpi, "d")) - return -EIO; - *value = (t - 2732) * 100; - return 0; - } - break; - - case TPACPI_THERMAL_ACPI_TMP07: - if (idx <= 7) { - snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); - if (!acpi_evalf(ec_handle, &t, tmpi, "d")) - return -EIO; - if (t > 127 || t < -127) - t = TP_EC_THERMAL_TMP_NA; - *value = t * 1000; - return 0; - } - break; - - case TPACPI_THERMAL_NONE: - default: - return -ENOSYS; - } - - return -EINVAL; -} - -static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) -{ - int res, i; - int n; - - n = 8; - i = 0; - - if (!s) - return -EINVAL; - - if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) - n = 16; - - for(i = 0 ; i < n; i++) { - res = thermal_get_sensor(i, &s->temp[i]); - if (res) - return res; - } - - return n; -} - -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; -} - -static struct ibm_struct thermal_driver_data = { - .name = "thermal", - .read = thermal_read, - .exit = thermal_exit, -}; - -/************************************************************************* - * 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<offset> 0x<value>" - " (<offset> is 00-ff, <value> is 00-ff)\n"); - len += sprintf(p + len, "commands:\t0x<offset> <value> " - " (<offset> is 00-ff, <value> 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; -} - -static struct ibm_struct ecdump_driver_data = { - .name = "ecdump", - .read = ecdump_read, - .write = ecdump_write, - .flags.experimental = 1, -}; - -/************************************************************************* - * Backlight/brightness subdriver - */ - -static struct backlight_device *ibm_backlight_device; - -static struct backlight_ops ibm_backlight_data = { - .get_brightness = brightness_get, - .update_status = brightness_update_status, -}; - -static struct mutex brightness_mutex; - -static int __init brightness_init(struct ibm_init_struct *iibm) -{ - int b; - - vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); - - mutex_init(&brightness_mutex); - - if (!brightness_mode) { - if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) - brightness_mode = 2; - else - brightness_mode = 3; - - dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", - brightness_mode); - } - - if (brightness_mode > 3) - return -EINVAL; - - b = brightness_get(NULL); - if (b < 0) - return 1; - - ibm_backlight_device = backlight_device_register( - TPACPI_BACKLIGHT_DEV_NAME, 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); - } - vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); - - 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) { - vdbg_printk(TPACPI_DBG_EXIT, - "calling backlight_device_unregister()\n"); - 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); -} - -/* - * ThinkPads can read brightness from two places: EC 0x31, or - * CMOS NVRAM byte 0x5E, bits 0-3. - */ -static int brightness_get(struct backlight_device *bd) -{ - u8 lec = 0, lcmos = 0, level = 0; - - if (brightness_mode & 1) { - if (!acpi_ec_read(brightness_offset, &lec)) - return -EIO; - lec &= 7; - level = lec; - }; - if (brightness_mode & 2) { - lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) - & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) - >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; - level = lcmos; - } - - if (brightness_mode == 3 && lec != lcmos) { - printk(IBM_ERR - "CMOS NVRAM (%u) and EC (%u) do not agree " - "on display brightness level\n", - (unsigned int) lcmos, - (unsigned int) lec); - return -EIO; - } - - return level; -} - -static int brightness_set(int value) -{ - int cmos_cmd, inc, i, res; - int current_value; - - if (value > 7) - return -EINVAL; - - res = mutex_lock_interruptible(&brightness_mutex); - if (res < 0) - return res; - - current_value = brightness_get(NULL); - if (current_value < 0) { - res = current_value; - goto errout; - } - - cmos_cmd = value > current_value ? - TP_CMOS_BRIGHTNESS_UP : - TP_CMOS_BRIGHTNESS_DOWN; - inc = value > current_value ? 1 : -1; - - res = 0; - for (i = current_value; i != value; i += inc) { - if ((brightness_mode & 2) && - issue_thinkpad_cmos_command(cmos_cmd)) { - res = -EIO; - goto errout; - } - if ((brightness_mode & 1) && - !acpi_ec_write(brightness_offset, i + inc)) { - res = -EIO; - goto errout;; - } - } - -errout: - mutex_unlock(&brightness_mutex); - return res; -} - -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 <level>" - " (<level> 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; -} - -static struct ibm_struct brightness_driver_data = { - .name = "brightness", - .read = brightness_read, - .write = brightness_write, - .exit = brightness_exit, -}; - -/************************************************************************* - * 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 <level>" - " (<level> 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 && (issue_thinkpad_cmos_command(cmos_cmd) || - !acpi_ec_write(volume_offset, level))) - return -EIO; - - for (i = level; i != new_level; i += inc) - if (issue_thinkpad_cmos_command(cmos_cmd) || - !acpi_ec_write(volume_offset, i + inc)) - return -EIO; - - if (mute && (issue_thinkpad_cmos_command(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 (issue_thinkpad_cmos_command(cmos_cmd) || - !acpi_ec_write(volume_offset, level + new_mute)) - return -EIO; - } - } - - return 0; -} - -static struct ibm_struct volume_driver_data = { - .name = "volume", - .read = volume_read, - .write = volume_write, -}; - -/************************************************************************* - * Fan subdriver - */ - -/* - * FAN ACCESS MODES - * - * TPACPI_FAN_RD_ACPI_GFAN: - * ACPI GFAN method: returns fan level - * - * see TPACPI_FAN_WR_ACPI_SFAN - * EC 0x2f (HFSP) not available if GFAN exists - * - * TPACPI_FAN_WR_ACPI_SFAN: - * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) - * - * EC 0x2f (HFSP) might be available *for reading*, but do not use - * it for writing. - * - * TPACPI_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 full speed mode (takes precedence over bit 7); - * not available on all thinkpads. May disable - * the tachometer while the fan controller ramps up - * the speed (which can take up to a few *minutes*). - * Speeds up fan to 100% duty-cycle, which is 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 - * TPACPI_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: may go stale while the EC is switching to full speed - * mode. - * - * For firmware bugs, refer to: - * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues - * - * TPACPI_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. - * - * TPACPI_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 u8 fan_control_initial_status; -static u8 fan_control_desired_level; - -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 */ - -/* - * SYSFS fan layout: hwmon compatible (device) - * - * pwm*_enable: - * 0: "disengaged" mode - * 1: manual mode - * 2: native EC "auto" mode (recommended, hardware default) - * - * pwm*: set speed in manual mode, ignored otherwise. - * 0 is level 0; 255 is level 7. Intermediate points done with linear - * interpolation. - * - * fan*_input: tachometer reading, RPM - * - * - * SYSFS fan layout: extensions - * - * fan_watchdog (driver): - * fan watchdog interval in seconds, 0 disables (default), max 120 - */ - -/* sysfs fan pwm1_enable ----------------------------------------------- */ -static ssize_t fan_pwm1_enable_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - int res, mode; - u8 status; - - res = fan_get_status_safe(&status); - if (res) - return res; - - if (unlikely(tp_features.fan_ctrl_status_undef)) { - if (status != fan_control_initial_status) { - tp_features.fan_ctrl_status_undef = 0; - } else { - /* Return most likely status. In fact, it - * might be the only possible status */ - status = TP_EC_FAN_AUTO; - } - } - - if (status & TP_EC_FAN_FULLSPEED) { - mode = 0; - } else if (status & TP_EC_FAN_AUTO) { - mode = 2; - } else - mode = 1; - - return snprintf(buf, PAGE_SIZE, "%d\n", mode); -} - -static ssize_t fan_pwm1_enable_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - unsigned long t; - int res, level; - - if (parse_strtoul(buf, 2, &t)) - return -EINVAL; - - switch (t) { - case 0: - level = TP_EC_FAN_FULLSPEED; - break; - case 1: - level = TPACPI_FAN_LAST_LEVEL; - break; - case 2: - level = TP_EC_FAN_AUTO; - break; - case 3: - /* reserved for software-controlled auto mode */ - return -ENOSYS; - default: - return -EINVAL; - } - - res = fan_set_level_safe(level); - if (res == -ENXIO) - return -EINVAL; - else if (res < 0) - return res; - - fan_watchdog_reset(); - - return count; -} - -static struct device_attribute dev_attr_fan_pwm1_enable = - __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, - fan_pwm1_enable_show, fan_pwm1_enable_store); - -/* sysfs fan pwm1 ------------------------------------------------------ */ -static ssize_t fan_pwm1_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - int res; - u8 status; - - res = fan_get_status_safe(&status); - if (res) - return res; - - if (unlikely(tp_features.fan_ctrl_status_undef)) { - if (status != fan_control_initial_status) { - tp_features.fan_ctrl_status_undef = 0; - } else { - status = TP_EC_FAN_AUTO; - } - } - - if ((status & - (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) - status = fan_control_desired_level; - - if (status > 7) - status = 7; - - return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); -} - -static ssize_t fan_pwm1_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - unsigned long s; - int rc; - u8 status, newlevel; - - if (parse_strtoul(buf, 255, &s)) - return -EINVAL; - - /* scale down from 0-255 to 0-7 */ - newlevel = (s >> 5) & 0x07; - - rc = mutex_lock_interruptible(&fan_mutex); - if (rc < 0) - return rc; - - rc = fan_get_status(&status); - if (!rc && (status & - (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { - rc = fan_set_level(newlevel); - if (rc == -ENXIO) - rc = -EINVAL; - else if (!rc) { - fan_update_desired_level(newlevel); - fan_watchdog_reset(); - } - } - - mutex_unlock(&fan_mutex); - return (rc)? rc : count; -} - -static struct device_attribute dev_attr_fan_pwm1 = - __ATTR(pwm1, S_IWUSR | S_IRUGO, - fan_pwm1_show, fan_pwm1_store); - -/* sysfs fan fan1_input ------------------------------------------------ */ -static ssize_t fan_fan1_input_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - int res; - unsigned int speed; - - res = fan_get_speed(&speed); - if (res < 0) - return res; - - return snprintf(buf, PAGE_SIZE, "%u\n", speed); -} - -static struct device_attribute dev_attr_fan_fan1_input = - __ATTR(fan1_input, S_IRUGO, - fan_fan1_input_show, NULL); - -/* sysfs fan fan_watchdog (driver) ------------------------------------- */ -static ssize_t fan_fan_watchdog_show(struct device_driver *drv, - char *buf) -{ - return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); -} - -static ssize_t fan_fan_watchdog_store(struct device_driver *drv, - const char *buf, size_t count) -{ - unsigned long t; - - if (parse_strtoul(buf, 120, &t)) - return -EINVAL; - - if (!fan_control_allowed) - return -EPERM; - - fan_watchdog_maxinterval = t; - fan_watchdog_reset(); - - return count; -} - -static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, - fan_fan_watchdog_show, fan_fan_watchdog_store); - -/* --------------------------------------------------------------------- */ -static struct attribute *fan_attributes[] = { - &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, - &dev_attr_fan_fan1_input.attr, - NULL -}; - -static const struct attribute_group fan_attr_group = { - .attrs = fan_attributes, -}; - -static int __init fan_init(struct ibm_init_struct *iibm) -{ - int rc; - - vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); - - mutex_init(&fan_mutex); - fan_status_access_mode = TPACPI_FAN_NONE; - fan_control_access_mode = TPACPI_FAN_WR_NONE; - fan_control_commands = 0; - fan_watchdog_maxinterval = 0; - tp_features.fan_ctrl_status_undef = 0; - fan_control_desired_level = 7; - - IBM_ACPIHANDLE_INIT(fans); - IBM_ACPIHANDLE_INIT(gfan); - IBM_ACPIHANDLE_INIT(sfan); - - if (gfan_handle) { - /* 570, 600e/x, 770e, 770x */ - fan_status_access_mode = TPACPI_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 = TPACPI_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) { - switch (thinkpad_id.ec_model) { - case 0x5931: /* TP-1Y */ - case 0x3837: /* TP-78 */ - case 0x3637: /* TP-76 */ - case 0x3037: /* TP-70 */ - printk(IBM_NOTICE - "fan_init: initial fan status is " - "unknown, assuming it is in auto " - "mode\n"); - tp_features.fan_ctrl_status_undef = 1; - ;; - } - } - } else { - printk(IBM_ERR - "ThinkPad ACPI EC access misbehaving, " - "fan status and control unavailable\n"); - return 1; - } - } - - if (sfan_handle) { - /* 570, 770x-JL */ - fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; - fan_control_commands |= - TPACPI_FAN_CMD_LEVEL | TPACPI_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 = - TPACPI_FAN_WR_ACPI_FANS; - fan_control_commands |= - TPACPI_FAN_CMD_SPEED | - TPACPI_FAN_CMD_LEVEL | - TPACPI_FAN_CMD_ENABLE; - } else { - fan_control_access_mode = TPACPI_FAN_WR_TPEC; - fan_control_commands |= - TPACPI_FAN_CMD_LEVEL | - TPACPI_FAN_CMD_ENABLE; - } - } - } - - vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", - str_supported(fan_status_access_mode != TPACPI_FAN_NONE || - fan_control_access_mode != TPACPI_FAN_WR_NONE), - fan_status_access_mode, fan_control_access_mode); - - /* fan control master switch */ - if (!fan_control_allowed) { - fan_control_access_mode = TPACPI_FAN_WR_NONE; - fan_control_commands = 0; - dbg_printk(TPACPI_DBG_INIT, - "fan control features disabled by parameter\n"); - } - - /* update fan_control_desired_level */ - if (fan_status_access_mode != TPACPI_FAN_NONE) - fan_get_status_safe(NULL); - - if (fan_status_access_mode != TPACPI_FAN_NONE || - fan_control_access_mode != TPACPI_FAN_WR_NONE) { - rc = sysfs_create_group(&tpacpi_pdev->dev.kobj, - &fan_attr_group); - if (!(rc < 0)) - rc = driver_create_file(&tpacpi_pdriver.driver, - &driver_attr_fan_watchdog); - if (rc < 0) - return rc; - return 0; - } else - return 1; -} - -/* - * Call with fan_mutex held - */ -static void fan_update_desired_level(u8 status) -{ - if ((status & - (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { - if (status > 7) - fan_control_desired_level = 7; - else - fan_control_desired_level = status; - } -} - -static int fan_get_status(u8 *status) -{ - u8 s; - - /* TODO: - * Add TPACPI_FAN_RD_ACPI_FANS ? */ - - switch (fan_status_access_mode) { - case TPACPI_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 TPACPI_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 int fan_get_status_safe(u8 *status) -{ - int rc; - u8 s; - - rc = mutex_lock_interruptible(&fan_mutex); - if (rc < 0) - return rc; - rc = fan_get_status(&s); - if (!rc) - fan_update_desired_level(s); - mutex_unlock(&fan_mutex); - - if (status) - *status = s; - - return rc; -} - -static void fan_exit(void) -{ - vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n"); - - /* FIXME: can we really do this unconditionally? */ - sysfs_remove_group(&tpacpi_pdev->dev.kobj, &fan_attr_group); - driver_remove_file(&tpacpi_pdriver.driver, &driver_attr_fan_watchdog); - - 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 TPACPI_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) -{ - int rc; - - printk(IBM_NOTICE "fan watchdog: enabling fan\n"); - rc = fan_set_enable(); - if (rc < 0) { - printk(IBM_ERR "fan watchdog: error %d while enabling fan, " - "will try again later...\n", -rc); - /* reschedule for later */ - fan_watchdog_reset(); - } -} - -static void fan_watchdog_reset(void) -{ - static int fan_watchdog_active; - - if (fan_control_access_mode == TPACPI_FAN_WR_NONE) - return; - - 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) -{ - if (!fan_control_allowed) - return -EPERM; - - switch (fan_control_access_mode) { - case TPACPI_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 TPACPI_FAN_WR_ACPI_FANS: - case TPACPI_FAN_WR_TPEC: - if ((level != TP_EC_FAN_AUTO) && - (level != TP_EC_FAN_FULLSPEED) && - ((level < 0) || (level > 7))) - return -EINVAL; - - /* safety net should the EC not support AUTO - * or FULLSPEED mode bits and just ignore them */ - if (level & TP_EC_FAN_FULLSPEED) - level |= 7; /* safety min speed 7 */ - else if (level & TP_EC_FAN_FULLSPEED) - level |= 4; /* safety min speed 4 */ - - if (!acpi_ec_write(fan_status_offset, level)) - return -EIO; - else - tp_features.fan_ctrl_status_undef = 0; - break; - - default: - return -ENXIO; - } - return 0; -} - -static int fan_set_level_safe(int level) -{ - int rc; - - if (!fan_control_allowed) - return -EPERM; - - rc = mutex_lock_interruptible(&fan_mutex); - if (rc < 0) - return rc; - - if (level == TPACPI_FAN_LAST_LEVEL) - level = fan_control_desired_level; - - rc = fan_set_level(level); - if (!rc) - fan_update_desired_level(level); - - mutex_unlock(&fan_mutex); - return rc; -} - -static int fan_set_enable(void) -{ - u8 s; - int rc; - - if (!fan_control_allowed) - return -EPERM; - - rc = mutex_lock_interruptible(&fan_mutex); - if (rc < 0) - return rc; - - switch (fan_control_access_mode) { - case TPACPI_FAN_WR_ACPI_FANS: - case TPACPI_FAN_WR_TPEC: - rc = fan_get_status(&s); - if (rc < 0) - break; - - /* Don't go out of emergency fan mode */ - if (s != 7) { - s &= 0x07; - s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ - } - - if (!acpi_ec_write(fan_status_offset, s)) - rc = -EIO; - else { - tp_features.fan_ctrl_status_undef = 0; - rc = 0; - } - break; - - case TPACPI_FAN_WR_ACPI_SFAN: - rc = fan_get_status(&s); - if (rc < 0) - break; - - s &= 0x07; - - /* Set fan to at least level 4 */ - s |= 4; - - if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) - rc= -EIO; - else - rc = 0; - break; - - default: - rc = -ENXIO; - } - - mutex_unlock(&fan_mutex); - return rc; -} - -static int fan_set_disable(void) -{ - int rc; - - if (!fan_control_allowed) - return -EPERM; - - rc = mutex_lock_interruptible(&fan_mutex); - if (rc < 0) - return rc; - - rc = 0; - switch (fan_control_access_mode) { - case TPACPI_FAN_WR_ACPI_FANS: - case TPACPI_FAN_WR_TPEC: - if (!acpi_ec_write(fan_status_offset, 0x00)) - rc = -EIO; - else { - fan_control_desired_level = 0; - tp_features.fan_ctrl_status_undef = 0; - } - break; - - case TPACPI_FAN_WR_ACPI_SFAN: - if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) - rc = -EIO; - else - fan_control_desired_level = 0; - break; - - default: - rc = -ENXIO; - } - - - mutex_unlock(&fan_mutex); - return rc; -} - -static int fan_set_speed(int speed) -{ - int rc; - - if (!fan_control_allowed) - return -EPERM; - - rc = mutex_lock_interruptible(&fan_mutex); - if (rc < 0) - return rc; - - rc = 0; - switch (fan_control_access_mode) { - case TPACPI_FAN_WR_ACPI_FANS: - if (speed >= 0 && speed <= 65535) { - if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", - speed, speed, speed)) - rc = -EIO; - } else - rc = -EINVAL; - break; - - default: - rc = -ENXIO; - } - - mutex_unlock(&fan_mutex); - return rc; -} - -static int fan_read(char *p) -{ - int len = 0; - int rc; - u8 status; - unsigned int speed = 0; - - switch (fan_status_access_mode) { - case TPACPI_FAN_RD_ACPI_GFAN: - /* 570, 600e/x, 770e, 770x */ - if ((rc = fan_get_status_safe(&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 TPACPI_FAN_RD_TPEC: - /* all except 570, 600e/x, 770e, 770x */ - if ((rc = fan_get_status_safe(&status)) < 0) - return rc; - - if (unlikely(tp_features.fan_ctrl_status_undef)) { - if (status != fan_control_initial_status) - tp_features.fan_ctrl_status_undef = 0; - else - /* Return most likely status. In fact, it - * might be the only possible status */ - status = TP_EC_FAN_AUTO; - } - - len += sprintf(p + len, "status:\t\t%s\n", - (status != 0) ? "enabled" : "disabled"); - - if ((rc = fan_get_speed(&speed)) < 0) - return rc; - - len += sprintf(p + len, "speed:\t\t%d\n", speed); - - if (status & TP_EC_FAN_FULLSPEED) - /* Disengaged mode takes precedence */ - len += sprintf(p + len, "level:\t\tdisengaged\n"); - else if (status & TP_EC_FAN_AUTO) - len += sprintf(p + len, "level:\t\tauto\n"); - else - len += sprintf(p + len, "level:\t\t%d\n", status); - break; - - case TPACPI_FAN_NONE: - default: - len += sprintf(p + len, "status:\t\tnot supported\n"); - } - - if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { - len += sprintf(p + len, "commands:\tlevel <level>"); - - switch (fan_control_access_mode) { - case TPACPI_FAN_WR_ACPI_SFAN: - len += sprintf(p + len, " (<level> is 0-7)\n"); - break; - - default: - len += sprintf(p + len, " (<level> is 0-7, " - "auto, disengaged, full-speed)\n"); - break; - } - } - - if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) - len += sprintf(p + len, "commands:\tenable, disable\n" - "commands:\twatchdog <timeout> (<timeout> is 0 (off), " - "1-120 (seconds))\n"); - - if (fan_control_commands & TPACPI_FAN_CMD_SPEED) - len += sprintf(p + len, "commands:\tspeed <speed>" - " (<speed> 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 = TP_EC_FAN_AUTO; - else if ((strlencmp(cmd, "level disengaged") == 0) | - (strlencmp(cmd, "level full-speed") == 0)) - level = TP_EC_FAN_FULLSPEED; - else if (sscanf(cmd, "level %d", &level) != 1) - return 0; - - if ((*rc = fan_set_level_safe(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 <low> <medium> <high> ? */ - - 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 & TPACPI_FAN_CMD_LEVEL) && - fan_write_cmd_level(cmd, &rc)) && - !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && - (fan_write_cmd_enable(cmd, &rc) || - fan_write_cmd_disable(cmd, &rc) || - fan_write_cmd_watchdog(cmd, &rc))) && - !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && - fan_write_cmd_speed(cmd, &rc)) - ) - rc = -EINVAL; - else if (!rc) - fan_watchdog_reset(); - } - - return rc; -} - -static struct ibm_struct fan_driver_data = { - .name = "fan", - .read = fan_read, - .write = fan_write, - .exit = fan_exit, -}; - -/**************************************************************************** - **************************************************************************** - * - * Infrastructure - * - **************************************************************************** - ****************************************************************************/ - -/* /proc support */ -static struct proc_dir_entry *proc_dir; - -/* Subdriver registry */ -static LIST_HEAD(tpacpi_all_drivers); - - -/* - * Module and infrastructure proble, init and exit handling - */ - -#ifdef CONFIG_THINKPAD_ACPI_DEBUG -static const char * __init str_supported(int is_supported) -{ - static char text_unsupported[] __initdata = "not supported"; - - return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; -} -#endif /* CONFIG_THINKPAD_ACPI_DEBUG */ - -static int __init ibm_init(struct ibm_init_struct *iibm) -{ - int ret; - struct ibm_struct *ibm = iibm->data; - struct proc_dir_entry *entry; - - BUG_ON(ibm == NULL); - - INIT_LIST_HEAD(&ibm->all_drivers); - - if (ibm->flags.experimental && !experimental) - return 0; - - dbg_printk(TPACPI_DBG_INIT, - "probing for %s\n", ibm->name); - - if (iibm->init) { - ret = iibm->init(iibm); - if (ret > 0) - return 0; /* probe failed */ - if (ret) - return ret; - - ibm->flags.init_called = 1; - } - - if (ibm->acpi) { - if (ibm->acpi->hid) { - ret = register_tpacpi_subdriver(ibm); - if (ret) - goto err_out; - } - - if (ibm->acpi->notify) { - ret = setup_acpi_notify(ibm); - if (ret == -ENODEV) { - printk(IBM_NOTICE "disabling subdriver %s\n", - ibm->name); - ret = 0; - goto err_out; - } - if (ret < 0) - goto err_out; - } - } - - dbg_printk(TPACPI_DBG_INIT, - "%s installed\n", ibm->name); - - 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); - ret = -ENODEV; - goto err_out; - } - entry->owner = THIS_MODULE; - entry->data = ibm; - entry->read_proc = &dispatch_procfs_read; - if (ibm->write) - entry->write_proc = &dispatch_procfs_write; - ibm->flags.proc_created = 1; - } - - list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); - - return 0; - -err_out: - dbg_printk(TPACPI_DBG_INIT, - "%s: at error exit path with result %d\n", - ibm->name, ret); - - ibm_exit(ibm); - return (ret < 0)? ret : 0; -} - -static void ibm_exit(struct ibm_struct *ibm) -{ - dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); - - list_del_init(&ibm->all_drivers); - - if (ibm->flags.acpi_notify_installed) { - dbg_printk(TPACPI_DBG_EXIT, - "%s: acpi_remove_notify_handler\n", ibm->name); - BUG_ON(!ibm->acpi); - acpi_remove_notify_handler(*ibm->acpi->handle, - ibm->acpi->type, - dispatch_acpi_notify); - ibm->flags.acpi_notify_installed = 0; - ibm->flags.acpi_notify_installed = 0; - } - - if (ibm->flags.proc_created) { - dbg_printk(TPACPI_DBG_EXIT, - "%s: remove_proc_entry\n", ibm->name); - remove_proc_entry(ibm->name, proc_dir); - ibm->flags.proc_created = 0; - } - - if (ibm->flags.acpi_driver_registered) { - dbg_printk(TPACPI_DBG_EXIT, - "%s: acpi_bus_unregister_driver\n", ibm->name); - BUG_ON(!ibm->acpi); - acpi_bus_unregister_driver(ibm->acpi->driver); - kfree(ibm->acpi->driver); - ibm->acpi->driver = NULL; - ibm->flags.acpi_driver_registered = 0; - } - - if (ibm->flags.init_called && ibm->exit) { - ibm->exit(); - ibm->flags.init_called = 0; - } - - dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); -} - -/* Probing */ - -static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) -{ - const struct dmi_device *dev = NULL; - char ec_fw_string[18]; - - if (!tp) - return; - - memset(tp, 0, sizeof(*tp)); - - if (dmi_name_in_vendors("IBM")) - tp->vendor = PCI_VENDOR_ID_IBM; - else if (dmi_name_in_vendors("LENOVO")) - tp->vendor = PCI_VENDOR_ID_LENOVO; - else - return; - - tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), - GFP_KERNEL); - if (!tp->bios_version_str) - return; - tp->bios_model = tp->bios_version_str[0] - | (tp->bios_version_str[1] << 8); - - /* - * 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; - - tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); - tp->ec_model = ec_fw_string[0] - | (ec_fw_string[1] << 8); - break; - } - } - - tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), - GFP_KERNEL); - if (strnicmp(tp->model_str, "ThinkPad", 8) != 0) { - kfree(tp->model_str); - tp->model_str = NULL; - } -} - -static int __init probe_for_thinkpad(void) -{ - int is_thinkpad; - - if (acpi_disabled) - return -ENODEV; - - /* - * Non-ancient models have better DMI tagging, but very old models - * don't. - */ - is_thinkpad = (thinkpad_id.model_str != NULL); - - /* ec is required because many other handles are relative to it */ - IBM_ACPIHANDLE_INIT(ec); - if (!ec_handle) { - if (is_thinkpad) - printk(IBM_ERR - "Not yet supported ThinkPad detected!\n"); - return -ENODEV; - } - - /* - * Risks a regression on very old machines, but reduces potential - * false positives a damn great deal - */ - if (!is_thinkpad) - is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); - - if (!is_thinkpad && !force_load) - return -ENODEV; - - return 0; -} - - -/* Module init, exit, parameters */ - -static struct ibm_init_struct ibms_init[] __initdata = { - { - .init = thinkpad_acpi_driver_init, - .data = &thinkpad_acpi_driver_data, - }, - { - .init = hotkey_init, - .data = &hotkey_driver_data, - }, - { - .init = bluetooth_init, - .data = &bluetooth_driver_data, - }, - { - .init = wan_init, - .data = &wan_driver_data, - }, - { - .init = video_init, - .data = &video_driver_data, - }, - { - .init = light_init, - .data = &light_driver_data, - }, -#ifdef CONFIG_THINKPAD_ACPI_DOCK - { - .init = dock_init, - .data = &dock_driver_data[0], - }, - { - .init = dock_init2, - .data = &dock_driver_data[1], - }, -#endif -#ifdef CONFIG_THINKPAD_ACPI_BAY - { - .init = bay_init, - .data = &bay_driver_data, - }, -#endif - { - .init = cmos_init, - .data = &cmos_driver_data, - }, - { - .init = led_init, - .data = &led_driver_data, - }, - { - .init = beep_init, - .data = &beep_driver_data, - }, - { - .init = thermal_init, - .data = &thermal_driver_data, - }, - { - .data = &ecdump_driver_data, - }, - { - .init = brightness_init, - .data = &brightness_driver_data, - }, - { - .data = &volume_driver_data, - }, - { - .init = fan_init, - .data = &fan_driver_data, - }, -}; - -static int __init set_ibm_param(const char *val, struct kernel_param *kp) -{ - unsigned int i; - struct ibm_struct *ibm; - - for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { - ibm = ibms_init[i].data; - BUG_ON(ibm == NULL); - - if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { - if (strlen(val) > sizeof(ibms_init[i].param) - 2) - return -ENOSPC; - strcpy(ibms_init[i].param, val); - strcat(ibms_init[i].param, ","); - return 0; - } - } - - return -EINVAL; -} - -static int experimental; -module_param(experimental, int, 0); - -static u32 dbg_level; -module_param_named(debug, dbg_level, uint, 0); - -static int force_load; -module_param(force_load, bool, 0); - -static int fan_control_allowed; -module_param_named(fan_control, fan_control_allowed, bool, 0); - -static int brightness_mode; -module_param_named(brightness_mode, brightness_mode, int, 0); - -static unsigned int hotkey_report_mode; -module_param(hotkey_report_mode, uint, 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_THINKPAD_ACPI_DOCK -IBM_PARAM(dock); -#endif -#ifdef CONFIG_THINKPAD_ACPI_BAY -IBM_PARAM(bay); -#endif /* CONFIG_THINKPAD_ACPI_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 thinkpad_acpi_module_init(void) -{ - int ret, i; - - /* Parameter checking */ - if (hotkey_report_mode > 2) - return -EINVAL; - - /* Driver-level probe */ - - get_thinkpad_model_data(&thinkpad_id); - ret = probe_for_thinkpad(); - if (ret) { - thinkpad_acpi_module_exit(); - return ret; - } - - /* Driver initialization */ - - IBM_ACPIHANDLE_INIT(ecrd); - IBM_ACPIHANDLE_INIT(ecwr); - - proc_dir = proc_mkdir(IBM_PROC_DIR, acpi_root_dir); - if (!proc_dir) { - printk(IBM_ERR "unable to create proc dir " IBM_PROC_DIR); - thinkpad_acpi_module_exit(); - return -ENODEV; - } - proc_dir->owner = THIS_MODULE; - - ret = platform_driver_register(&tpacpi_pdriver); - if (ret) { - printk(IBM_ERR "unable to register platform driver\n"); - thinkpad_acpi_module_exit(); - return ret; - } - tp_features.platform_drv_registered = 1; - - ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); - if (ret) { - printk(IBM_ERR "unable to create sysfs driver attributes\n"); - thinkpad_acpi_module_exit(); - return ret; - } - tp_features.platform_drv_attrs_registered = 1; - - - /* Device initialization */ - tpacpi_pdev = platform_device_register_simple(IBM_DRVR_NAME, -1, - NULL, 0); - if (IS_ERR(tpacpi_pdev)) { - ret = PTR_ERR(tpacpi_pdev); - tpacpi_pdev = NULL; - printk(IBM_ERR "unable to register platform device\n"); - thinkpad_acpi_module_exit(); - return ret; - } - tpacpi_hwmon = hwmon_device_register(&tpacpi_pdev->dev); - if (IS_ERR(tpacpi_hwmon)) { - ret = PTR_ERR(tpacpi_hwmon); - tpacpi_hwmon = NULL; - printk(IBM_ERR "unable to register hwmon device\n"); - thinkpad_acpi_module_exit(); - return ret; - } - tpacpi_inputdev = input_allocate_device(); - if (!tpacpi_inputdev) { - printk(IBM_ERR "unable to allocate input device\n"); - thinkpad_acpi_module_exit(); - return -ENOMEM; - } else { - /* Prepare input device, but don't register */ - tpacpi_inputdev->name = "ThinkPad Extra Buttons"; - tpacpi_inputdev->phys = IBM_DRVR_NAME "/input0"; - tpacpi_inputdev->id.bustype = BUS_HOST; - tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? - thinkpad_id.vendor : - PCI_VENDOR_ID_IBM; - tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; - tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; - } - for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { - ret = ibm_init(&ibms_init[i]); - if (ret >= 0 && *ibms_init[i].param) - ret = ibms_init[i].data->write(ibms_init[i].param); - if (ret < 0) { - thinkpad_acpi_module_exit(); - return ret; - } - } - ret = input_register_device(tpacpi_inputdev); - if (ret < 0) { - printk(IBM_ERR "unable to register input device\n"); - thinkpad_acpi_module_exit(); - return ret; - } else { - tp_features.input_device_registered = 1; - } - - return 0; -} - -static void thinkpad_acpi_module_exit(void) -{ - struct ibm_struct *ibm, *itmp; - - list_for_each_entry_safe_reverse(ibm, itmp, - &tpacpi_all_drivers, - all_drivers) { - ibm_exit(ibm); - } - - dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); - - if (tpacpi_inputdev) { - if (tp_features.input_device_registered) - input_unregister_device(tpacpi_inputdev); - else - input_free_device(tpacpi_inputdev); - } - - if (tpacpi_hwmon) - hwmon_device_unregister(tpacpi_hwmon); - - if (tpacpi_pdev) - platform_device_unregister(tpacpi_pdev); - - if (tp_features.platform_drv_attrs_registered) - tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); - - if (tp_features.platform_drv_registered) - platform_driver_unregister(&tpacpi_pdriver); - - if (proc_dir) - remove_proc_entry(IBM_PROC_DIR, acpi_root_dir); - - kfree(thinkpad_id.bios_version_str); - kfree(thinkpad_id.ec_version_str); - kfree(thinkpad_id.model_str); -} - -module_init(thinkpad_acpi_module_init); -module_exit(thinkpad_acpi_module_exit); |