| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Harald Welte | 1988 | 82.01% | 3 | 12.50% |
| Dmitry Torokhov | 182 | 7.51% | 1 | 4.17% |
| Rafael J. Wysocki | 58 | 2.39% | 2 | 8.33% |
| Matthew Garrett | 57 | 2.35% | 2 | 8.33% |
| Stefan Seyfried | 53 | 2.19% | 1 | 4.17% |
| Björn Helgaas | 23 | 0.95% | 1 | 4.17% |
| Jean Delvare | 13 | 0.54% | 2 | 8.33% |
| Bruno Prémont | 12 | 0.50% | 1 | 4.17% |
| Axel Lin | 9 | 0.37% | 2 | 8.33% |
| Michał Kępień | 7 | 0.29% | 1 | 4.17% |
| Kees Cook | 5 | 0.21% | 1 | 4.17% |
| Xi Wang | 5 | 0.21% | 1 | 4.17% |
| Len Brown | 4 | 0.17% | 1 | 4.17% |
| Tejun Heo | 3 | 0.12% | 1 | 4.17% |
| Andy Shevchenko | 2 | 0.08% | 1 | 4.17% |
| Hannes Eder | 1 | 0.04% | 1 | 4.17% |
| Arvind Yadav | 1 | 0.04% | 1 | 4.17% |
| Lv Zheng | 1 | 0.04% | 1 | 4.17% |
| Total | 2424 | 24 |
/* * Panasonic HotKey and LCD brightness control driver * (C) 2004 Hiroshi Miura <miura@da-cha.org> * (C) 2004 NTT DATA Intellilink Co. http://www.intellilink.co.jp/ * (C) YOKOTA Hiroshi <yokota (at) netlab. is. tsukuba. ac. jp> * (C) 2004 David Bronaugh <dbronaugh> * (C) 2006-2008 Harald Welte <laforge@gnumonks.org> * * derived from toshiba_acpi.c, Copyright (C) 2002-2004 John Belmonte * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * publicshed by the Free Software Foundation. * * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * *--------------------------------------------------------------------------- * * ChangeLog: * Sep.23, 2008 Harald Welte <laforge@gnumonks.org> * -v0.95 rename driver from drivers/acpi/pcc_acpi.c to * drivers/misc/panasonic-laptop.c * * Jul.04, 2008 Harald Welte <laforge@gnumonks.org> * -v0.94 replace /proc interface with device attributes * support {set,get}keycode on th input device * * Jun.27, 2008 Harald Welte <laforge@gnumonks.org> * -v0.92 merge with 2.6.26-rc6 input API changes * remove broken <= 2.6.15 kernel support * resolve all compiler warnings * various coding style fixes (checkpatch.pl) * add support for backlight api * major code restructuring * * Dac.28, 2007 Harald Welte <laforge@gnumonks.org> * -v0.91 merge with 2.6.24-rc6 ACPI changes * * Nov.04, 2006 Hiroshi Miura <miura@da-cha.org> * -v0.9 remove warning about section reference. * remove acpi_os_free * add /proc/acpi/pcc/brightness interface for HAL access * merge dbronaugh's enhancement * Aug.17, 2004 David Bronaugh (dbronaugh) * - Added screen brightness setting interface * Thanks to FreeBSD crew (acpi_panasonic.c) * for the ideas I needed to accomplish it * * May.29, 2006 Hiroshi Miura <miura@da-cha.org> * -v0.8.4 follow to change keyinput structure * thanks Fabian Yamaguchi <fabs@cs.tu-berlin.de>, * Jacob Bower <jacob.bower@ic.ac.uk> and * Hiroshi Yokota for providing solutions. * * Oct.02, 2004 Hiroshi Miura <miura@da-cha.org> * -v0.8.2 merge code of YOKOTA Hiroshi * <yokota@netlab.is.tsukuba.ac.jp>. * Add sticky key mode interface. * Refactoring acpi_pcc_generate_keyinput(). * * Sep.15, 2004 Hiroshi Miura <miura@da-cha.org> * -v0.8 Generate key input event on input subsystem. * This is based on yet another driver written by * Ryuta Nakanishi. * * Sep.10, 2004 Hiroshi Miura <miura@da-cha.org> * -v0.7 Change proc interface functions using seq_file * facility as same as other ACPI drivers. * * Aug.28, 2004 Hiroshi Miura <miura@da-cha.org> * -v0.6.4 Fix a silly error with status checking * * Aug.25, 2004 Hiroshi Miura <miura@da-cha.org> * -v0.6.3 replace read_acpi_int by standard function * acpi_evaluate_integer * some clean up and make smart copyright notice. * fix return value of pcc_acpi_get_key() * fix checking return value of acpi_bus_register_driver() * * Aug.22, 2004 David Bronaugh <dbronaugh@linuxboxen.org> * -v0.6.2 Add check on ACPI data (num_sifr) * Coding style cleanups, better error messages/handling * Fixed an off-by-one error in memory allocation * * Aug.21, 2004 David Bronaugh <dbronaugh@linuxboxen.org> * -v0.6.1 Fix a silly error with status checking * * Aug.20, 2004 David Bronaugh <dbronaugh@linuxboxen.org> * - v0.6 Correct brightness controls to reflect reality * based on information gleaned by Hiroshi Miura * and discussions with Hiroshi Miura * * Aug.10, 2004 Hiroshi Miura <miura@da-cha.org> * - v0.5 support LCD brightness control * based on the disclosed information by MEI. * * Jul.25, 2004 Hiroshi Miura <miura@da-cha.org> * - v0.4 first post version * add function to retrive SIFR * * Jul.24, 2004 Hiroshi Miura <miura@da-cha.org> * - v0.3 get proper status of hotkey * * Jul.22, 2004 Hiroshi Miura <miura@da-cha.org> * - v0.2 add HotKey handler * * Jul.17, 2004 Hiroshi Miura <miura@da-cha.org> * - v0.1 start from toshiba_acpi driver written by John Belmonte * */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> #include <linux/types.h> #include <linux/backlight.h> #include <linux/ctype.h> #include <linux/seq_file.h> #include <linux/uaccess.h> #include <linux/slab.h> #include <linux/acpi.h> #include <linux/input.h> #include <linux/input/sparse-keymap.h> #ifndef ACPI_HOTKEY_COMPONENT #define ACPI_HOTKEY_COMPONENT 0x10000000 #endif #define _COMPONENT ACPI_HOTKEY_COMPONENT MODULE_AUTHOR("Hiroshi Miura, David Bronaugh and Harald Welte"); MODULE_DESCRIPTION("ACPI HotKey driver for Panasonic Let's Note laptops"); MODULE_LICENSE("GPL"); #define LOGPREFIX "pcc_acpi: " /* Define ACPI PATHs */ /* Lets note hotkeys */ #define METHOD_HKEY_QUERY "HINF" #define METHOD_HKEY_SQTY "SQTY" #define METHOD_HKEY_SINF "SINF" #define METHOD_HKEY_SSET "SSET" #define HKEY_NOTIFY 0x80 #define ACPI_PCC_DRIVER_NAME "Panasonic Laptop Support" #define ACPI_PCC_DEVICE_NAME "Hotkey" #define ACPI_PCC_CLASS "pcc" #define ACPI_PCC_INPUT_PHYS "panasonic/hkey0" /* LCD_TYPEs: 0 = Normal, 1 = Semi-transparent ENV_STATEs: Normal temp=0x01, High temp=0x81, N/A=0x00 */ enum SINF_BITS { SINF_NUM_BATTERIES = 0, SINF_LCD_TYPE, SINF_AC_MAX_BRIGHT, SINF_AC_MIN_BRIGHT, SINF_AC_CUR_BRIGHT, SINF_DC_MAX_BRIGHT, SINF_DC_MIN_BRIGHT, SINF_DC_CUR_BRIGHT, SINF_MUTE, SINF_RESERVED, SINF_ENV_STATE, SINF_STICKY_KEY = 0x80, }; /* R1 handles SINF_AC_CUR_BRIGHT as SINF_CUR_BRIGHT, doesn't know AC state */ static int acpi_pcc_hotkey_add(struct acpi_device *device); static int acpi_pcc_hotkey_remove(struct acpi_device *device); static void acpi_pcc_hotkey_notify(struct acpi_device *device, u32 event); static const struct acpi_device_id pcc_device_ids[] = { { "MAT0012", 0}, { "MAT0013", 0}, { "MAT0018", 0}, { "MAT0019", 0}, { "", 0}, }; MODULE_DEVICE_TABLE(acpi, pcc_device_ids); #ifdef CONFIG_PM_SLEEP static int acpi_pcc_hotkey_resume(struct device *dev); #endif static SIMPLE_DEV_PM_OPS(acpi_pcc_hotkey_pm, NULL, acpi_pcc_hotkey_resume); static struct acpi_driver acpi_pcc_driver = { .name = ACPI_PCC_DRIVER_NAME, .class = ACPI_PCC_CLASS, .ids = pcc_device_ids, .ops = { .add = acpi_pcc_hotkey_add, .remove = acpi_pcc_hotkey_remove, .notify = acpi_pcc_hotkey_notify, }, .drv.pm = &acpi_pcc_hotkey_pm, }; static const struct key_entry panasonic_keymap[] = { { KE_KEY, 0, { KEY_RESERVED } }, { KE_KEY, 1, { KEY_BRIGHTNESSDOWN } }, { KE_KEY, 2, { KEY_BRIGHTNESSUP } }, { KE_KEY, 3, { KEY_DISPLAYTOGGLE } }, { KE_KEY, 4, { KEY_MUTE } }, { KE_KEY, 5, { KEY_VOLUMEDOWN } }, { KE_KEY, 6, { KEY_VOLUMEUP } }, { KE_KEY, 7, { KEY_SLEEP } }, { KE_KEY, 8, { KEY_PROG1 } }, /* Change CPU boost */ { KE_KEY, 9, { KEY_BATTERY } }, { KE_KEY, 10, { KEY_SUSPEND } }, { KE_END, 0 } }; struct pcc_acpi { acpi_handle handle; unsigned long num_sifr; int sticky_mode; u32 *sinf; struct acpi_device *device; struct input_dev *input_dev; struct backlight_device *backlight; }; /* method access functions */ static int acpi_pcc_write_sset(struct pcc_acpi *pcc, int func, int val) { union acpi_object in_objs[] = { { .integer.type = ACPI_TYPE_INTEGER, .integer.value = func, }, { .integer.type = ACPI_TYPE_INTEGER, .integer.value = val, }, }; struct acpi_object_list params = { .count = ARRAY_SIZE(in_objs), .pointer = in_objs, }; acpi_status status = AE_OK; status = acpi_evaluate_object(pcc->handle, METHOD_HKEY_SSET, ¶ms, NULL); return (status == AE_OK) ? 0 : -EIO; } static inline int acpi_pcc_get_sqty(struct acpi_device *device) { unsigned long long s; acpi_status status; status = acpi_evaluate_integer(device->handle, METHOD_HKEY_SQTY, NULL, &s); if (ACPI_SUCCESS(status)) return s; else { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "evaluation error HKEY.SQTY\n")); return -EINVAL; } } static int acpi_pcc_retrieve_biosdata(struct pcc_acpi *pcc) { acpi_status status; struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; union acpi_object *hkey = NULL; int i; status = acpi_evaluate_object(pcc->handle, METHOD_HKEY_SINF, NULL, &buffer); if (ACPI_FAILURE(status)) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "evaluation error HKEY.SINF\n")); return 0; } hkey = buffer.pointer; if (!hkey || (hkey->type != ACPI_TYPE_PACKAGE)) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid HKEY.SINF\n")); status = AE_ERROR; goto end; } if (pcc->num_sifr < hkey->package.count) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "SQTY reports bad SINF length\n")); status = AE_ERROR; goto end; } for (i = 0; i < hkey->package.count; i++) { union acpi_object *element = &(hkey->package.elements[i]); if (likely(element->type == ACPI_TYPE_INTEGER)) { pcc->sinf[i] = element->integer.value; } else ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid HKEY.SINF data\n")); } pcc->sinf[hkey->package.count] = -1; end: kfree(buffer.pointer); return status == AE_OK; } /* backlight API interface functions */ /* This driver currently treats AC and DC brightness identical, * since we don't need to invent an interface to the core ACPI * logic to receive events in case a power supply is plugged in * or removed */ static int bl_get(struct backlight_device *bd) { struct pcc_acpi *pcc = bl_get_data(bd); if (!acpi_pcc_retrieve_biosdata(pcc)) return -EIO; return pcc->sinf[SINF_AC_CUR_BRIGHT]; } static int bl_set_status(struct backlight_device *bd) { struct pcc_acpi *pcc = bl_get_data(bd); int bright = bd->props.brightness; int rc; if (!acpi_pcc_retrieve_biosdata(pcc)) return -EIO; if (bright < pcc->sinf[SINF_AC_MIN_BRIGHT]) bright = pcc->sinf[SINF_AC_MIN_BRIGHT]; if (bright < pcc->sinf[SINF_DC_MIN_BRIGHT]) bright = pcc->sinf[SINF_DC_MIN_BRIGHT]; if (bright < pcc->sinf[SINF_AC_MIN_BRIGHT] || bright > pcc->sinf[SINF_AC_MAX_BRIGHT]) return -EINVAL; rc = acpi_pcc_write_sset(pcc, SINF_AC_CUR_BRIGHT, bright); if (rc < 0) return rc; return acpi_pcc_write_sset(pcc, SINF_DC_CUR_BRIGHT, bright); } static const struct backlight_ops pcc_backlight_ops = { .get_brightness = bl_get, .update_status = bl_set_status, }; /* sysfs user interface functions */ static ssize_t show_numbatt(struct device *dev, struct device_attribute *attr, char *buf) { struct acpi_device *acpi = to_acpi_device(dev); struct pcc_acpi *pcc = acpi_driver_data(acpi); if (!acpi_pcc_retrieve_biosdata(pcc)) return -EIO; return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sinf[SINF_NUM_BATTERIES]); } static ssize_t show_lcdtype(struct device *dev, struct device_attribute *attr, char *buf) { struct acpi_device *acpi = to_acpi_device(dev); struct pcc_acpi *pcc = acpi_driver_data(acpi); if (!acpi_pcc_retrieve_biosdata(pcc)) return -EIO; return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sinf[SINF_LCD_TYPE]); } static ssize_t show_mute(struct device *dev, struct device_attribute *attr, char *buf) { struct acpi_device *acpi = to_acpi_device(dev); struct pcc_acpi *pcc = acpi_driver_data(acpi); if (!acpi_pcc_retrieve_biosdata(pcc)) return -EIO; return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sinf[SINF_MUTE]); } static ssize_t show_sticky(struct device *dev, struct device_attribute *attr, char *buf) { struct acpi_device *acpi = to_acpi_device(dev); struct pcc_acpi *pcc = acpi_driver_data(acpi); if (!acpi_pcc_retrieve_biosdata(pcc)) return -EIO; return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sinf[SINF_STICKY_KEY]); } static ssize_t set_sticky(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct acpi_device *acpi = to_acpi_device(dev); struct pcc_acpi *pcc = acpi_driver_data(acpi); int val; if (count && sscanf(buf, "%i", &val) == 1 && (val == 0 || val == 1)) { acpi_pcc_write_sset(pcc, SINF_STICKY_KEY, val); pcc->sticky_mode = val; } return count; } static DEVICE_ATTR(numbatt, S_IRUGO, show_numbatt, NULL); static DEVICE_ATTR(lcdtype, S_IRUGO, show_lcdtype, NULL); static DEVICE_ATTR(mute, S_IRUGO, show_mute, NULL); static DEVICE_ATTR(sticky_key, S_IRUGO | S_IWUSR, show_sticky, set_sticky); static struct attribute *pcc_sysfs_entries[] = { &dev_attr_numbatt.attr, &dev_attr_lcdtype.attr, &dev_attr_mute.attr, &dev_attr_sticky_key.attr, NULL, }; static const struct attribute_group pcc_attr_group = { .name = NULL, /* put in device directory */ .attrs = pcc_sysfs_entries, }; /* hotkey input device driver */ static int sleep_keydown_seen; static void acpi_pcc_generate_keyinput(struct pcc_acpi *pcc) { struct input_dev *hotk_input_dev = pcc->input_dev; int rc; unsigned long long result; rc = acpi_evaluate_integer(pcc->handle, METHOD_HKEY_QUERY, NULL, &result); if (ACPI_FAILURE(rc)) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "error getting hotkey status\n")); return; } /* hack: some firmware sends no key down for sleep / hibernate */ if ((result & 0xf) == 0x7 || (result & 0xf) == 0xa) { if (result & 0x80) sleep_keydown_seen = 1; if (!sleep_keydown_seen) sparse_keymap_report_event(hotk_input_dev, result & 0xf, 0x80, false); } if (!sparse_keymap_report_event(hotk_input_dev, result & 0xf, result & 0x80, false)) ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unknown hotkey event: %d\n", result)); } static void acpi_pcc_hotkey_notify(struct acpi_device *device, u32 event) { struct pcc_acpi *pcc = acpi_driver_data(device); switch (event) { case HKEY_NOTIFY: acpi_pcc_generate_keyinput(pcc); break; default: /* nothing to do */ break; } } static int acpi_pcc_init_input(struct pcc_acpi *pcc) { struct input_dev *input_dev; int error; input_dev = input_allocate_device(); if (!input_dev) return -ENOMEM; input_dev->name = ACPI_PCC_DRIVER_NAME; input_dev->phys = ACPI_PCC_INPUT_PHYS; input_dev->id.bustype = BUS_HOST; input_dev->id.vendor = 0x0001; input_dev->id.product = 0x0001; input_dev->id.version = 0x0100; error = sparse_keymap_setup(input_dev, panasonic_keymap, NULL); if (error) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unable to setup input device keymap\n")); goto err_free_dev; } error = input_register_device(input_dev); if (error) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unable to register input device\n")); goto err_free_dev; } pcc->input_dev = input_dev; return 0; err_free_dev: input_free_device(input_dev); return error; } /* kernel module interface */ #ifdef CONFIG_PM_SLEEP static int acpi_pcc_hotkey_resume(struct device *dev) { struct pcc_acpi *pcc; if (!dev) return -EINVAL; pcc = acpi_driver_data(to_acpi_device(dev)); if (!pcc) return -EINVAL; ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Sticky mode restore: %d\n", pcc->sticky_mode)); return acpi_pcc_write_sset(pcc, SINF_STICKY_KEY, pcc->sticky_mode); } #endif static int acpi_pcc_hotkey_add(struct acpi_device *device) { struct backlight_properties props; struct pcc_acpi *pcc; int num_sifr, result; if (!device) return -EINVAL; num_sifr = acpi_pcc_get_sqty(device); if (num_sifr < 0 || num_sifr > 255) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "num_sifr out of range")); return -ENODEV; } pcc = kzalloc(sizeof(struct pcc_acpi), GFP_KERNEL); if (!pcc) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Couldn't allocate mem for pcc")); return -ENOMEM; } pcc->sinf = kcalloc(num_sifr + 1, sizeof(u32), GFP_KERNEL); if (!pcc->sinf) { result = -ENOMEM; goto out_hotkey; } pcc->device = device; pcc->handle = device->handle; pcc->num_sifr = num_sifr; device->driver_data = pcc; strcpy(acpi_device_name(device), ACPI_PCC_DEVICE_NAME); strcpy(acpi_device_class(device), ACPI_PCC_CLASS); result = acpi_pcc_init_input(pcc); if (result) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error installing keyinput handler\n")); goto out_sinf; } if (!acpi_pcc_retrieve_biosdata(pcc)) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Couldn't retrieve BIOS data\n")); result = -EIO; goto out_input; } /* initialize backlight */ memset(&props, 0, sizeof(struct backlight_properties)); props.type = BACKLIGHT_PLATFORM; props.max_brightness = pcc->sinf[SINF_AC_MAX_BRIGHT]; pcc->backlight = backlight_device_register("panasonic", NULL, pcc, &pcc_backlight_ops, &props); if (IS_ERR(pcc->backlight)) { result = PTR_ERR(pcc->backlight); goto out_input; } /* read the initial brightness setting from the hardware */ pcc->backlight->props.brightness = pcc->sinf[SINF_AC_CUR_BRIGHT]; /* read the initial sticky key mode from the hardware */ pcc->sticky_mode = pcc->sinf[SINF_STICKY_KEY]; /* add sysfs attributes */ result = sysfs_create_group(&device->dev.kobj, &pcc_attr_group); if (result) goto out_backlight; return 0; out_backlight: backlight_device_unregister(pcc->backlight); out_input: input_unregister_device(pcc->input_dev); out_sinf: kfree(pcc->sinf); out_hotkey: kfree(pcc); return result; } static int acpi_pcc_hotkey_remove(struct acpi_device *device) { struct pcc_acpi *pcc = acpi_driver_data(device); if (!device || !pcc) return -EINVAL; sysfs_remove_group(&device->dev.kobj, &pcc_attr_group); backlight_device_unregister(pcc->backlight); input_unregister_device(pcc->input_dev); kfree(pcc->sinf); kfree(pcc); return 0; } module_acpi_driver(acpi_pcc_driver);
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