/* * ACPI Sony Notebook Control Driver (SNC and SPIC) * * Copyright (C) 2004-2005 Stelian Pop * Copyright (C) 2007 Mattia Dongili * * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c * which are copyrighted by their respective authors. * * The SNY6001 driver part is based on the sonypi driver which includes * material from: * * Copyright (C) 2001-2005 Stelian Pop * * Copyright (C) 2005 Narayanan R S * * Copyright (C) 2001-2002 Alcôve * * Copyright (C) 2001 Michael Ashley * * Copyright (C) 2001 Junichi Morita * * Copyright (C) 2000 Takaya Kinjo * * Copyright (C) 2000 Andrew Tridgell * * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras. * * 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., 675 Mass Ave, Cambridge, MA 02139, USA. * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef CONFIG_SONYPI_COMPAT #include #include #endif #define DRV_PFX "sony-laptop: " #define dprintk(msg...) do { \ if (debug) printk(KERN_WARNING DRV_PFX msg); \ } while (0) #define SONY_LAPTOP_DRIVER_VERSION "0.6" #define SONY_NC_CLASS "sony-nc" #define SONY_NC_HID "SNY5001" #define SONY_NC_DRIVER_NAME "Sony Notebook Control Driver" #define SONY_PIC_CLASS "sony-pic" #define SONY_PIC_HID "SNY6001" #define SONY_PIC_DRIVER_NAME "Sony Programmable IO Control Driver" MODULE_AUTHOR("Stelian Pop, Mattia Dongili"); MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)"); MODULE_LICENSE("GPL"); MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION); static int debug; module_param(debug, int, 0); MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help " "the development of this driver"); static int no_spic; /* = 0 */ module_param(no_spic, int, 0444); MODULE_PARM_DESC(no_spic, "set this if you don't want to enable the SPIC device"); static int compat; /* = 0 */ module_param(compat, int, 0444); MODULE_PARM_DESC(compat, "set this if you want to enable backward compatibility mode"); static unsigned long mask = 0xffffffff; module_param(mask, ulong, 0644); MODULE_PARM_DESC(mask, "set this to the mask of event you want to enable (see doc)"); static int camera; /* = 0 */ module_param(camera, int, 0444); MODULE_PARM_DESC(camera, "set this to 1 to enable Motion Eye camera controls " "(only use it if you have a C1VE or C1VN model)"); #ifdef CONFIG_SONYPI_COMPAT static int minor = -1; module_param(minor, int, 0); MODULE_PARM_DESC(minor, "minor number of the misc device for the SPIC compatibility code, " "default is -1 (automatic)"); #endif enum sony_nc_rfkill { SONY_WIFI, SONY_BLUETOOTH, SONY_WWAN, SONY_WIMAX, SONY_RFKILL_MAX, }; static struct rfkill *sony_rfkill_devices[SONY_RFKILL_MAX]; static int sony_rfkill_address[SONY_RFKILL_MAX] = {0x300, 0x500, 0x700, 0x900}; static void sony_nc_rfkill_update(void); /*********** Input Devices ***********/ #define SONY_LAPTOP_BUF_SIZE 128 struct sony_laptop_input_s { atomic_t users; struct input_dev *jog_dev; struct input_dev *key_dev; struct kfifo *fifo; spinlock_t fifo_lock; struct workqueue_struct *wq; }; static struct sony_laptop_input_s sony_laptop_input = { .users = ATOMIC_INIT(0), }; struct sony_laptop_keypress { struct input_dev *dev; int key; }; /* Correspondance table between sonypi events * and input layer indexes in the keymap */ static int sony_laptop_input_index[] = { -1, /* 0 no event */ -1, /* 1 SONYPI_EVENT_JOGDIAL_DOWN */ -1, /* 2 SONYPI_EVENT_JOGDIAL_UP */ -1, /* 3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */ -1, /* 4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */ -1, /* 5 SONYPI_EVENT_JOGDIAL_PRESSED */ -1, /* 6 SONYPI_EVENT_JOGDIAL_RELEASED */ 0, /* 7 SONYPI_EVENT_CAPTURE_PRESSED */ 1, /* 8 SONYPI_EVENT_CAPTURE_RELEASED */ 2, /* 9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */ 3, /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */ 4, /* 11 SONYPI_EVENT_FNKEY_ESC */ 5, /* 12 SONYPI_EVENT_FNKEY_F1 */ 6, /* 13 SONYPI_EVENT_FNKEY_F2 */ 7, /* 14 SONYPI_EVENT_FNKEY_F3 */ 8, /* 15 SONYPI_EVENT_FNKEY_F4 */ 9, /* 16 SONYPI_EVENT_FNKEY_F5 */ 10, /* 17 SONYPI_EVENT_FNKEY_F6 */ 11, /* 18 SONYPI_EVENT_FNKEY_F7 */ 12, /* 19 SONYPI_EVENT_FNKEY_F8 */ 13, /* 20 SONYPI_EVENT_FNKEY_F9 */ 14, /* 21 SONYPI_EVENT_FNKEY_F10 */ 15, /* 22 SONYPI_EVENT_FNKEY_F11 */ 16, /* 23 SONYPI_EVENT_FNKEY_F12 */ 17, /* 24 SONYPI_EVENT_FNKEY_1 */ 18, /* 25 SONYPI_EVENT_FNKEY_2 */ 19, /* 26 SONYPI_EVENT_FNKEY_D */ 20, /* 27 SONYPI_EVENT_FNKEY_E */ 21, /* 28 SONYPI_EVENT_FNKEY_F */ 22, /* 29 SONYPI_EVENT_FNKEY_S */ 23, /* 30 SONYPI_EVENT_FNKEY_B */ 24, /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */ 25, /* 32 SONYPI_EVENT_PKEY_P1 */ 26, /* 33 SONYPI_EVENT_PKEY_P2 */ 27, /* 34 SONYPI_EVENT_PKEY_P3 */ 28, /* 35 SONYPI_EVENT_BACK_PRESSED */ -1, /* 36 SONYPI_EVENT_LID_CLOSED */ -1, /* 37 SONYPI_EVENT_LID_OPENED */ 29, /* 38 SONYPI_EVENT_BLUETOOTH_ON */ 30, /* 39 SONYPI_EVENT_BLUETOOTH_OFF */ 31, /* 40 SONYPI_EVENT_HELP_PRESSED */ 32, /* 41 SONYPI_EVENT_FNKEY_ONLY */ 33, /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */ 34, /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */ 35, /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */ 36, /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */ 37, /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */ 38, /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */ 39, /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */ 40, /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */ 41, /* 50 SONYPI_EVENT_ZOOM_PRESSED */ 42, /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */ 43, /* 52 SONYPI_EVENT_MEYE_FACE */ 44, /* 53 SONYPI_EVENT_MEYE_OPPOSITE */ 45, /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */ 46, /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */ -1, /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */ -1, /* 57 SONYPI_EVENT_BATTERY_INSERT */ -1, /* 58 SONYPI_EVENT_BATTERY_REMOVE */ -1, /* 59 SONYPI_EVENT_FNKEY_RELEASED */ 47, /* 60 SONYPI_EVENT_WIRELESS_ON */ 48, /* 61 SONYPI_EVENT_WIRELESS_OFF */ 49, /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */ 50, /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */ 51, /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */ 52, /* 65 SONYPI_EVENT_MODEKEY_PRESSED */ 53, /* 66 SONYPI_EVENT_PKEY_P4 */ 54, /* 67 SONYPI_EVENT_PKEY_P5 */ 55, /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */ 56, /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */ 57, /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */ -1, /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */ }; static int sony_laptop_input_keycode_map[] = { KEY_CAMERA, /* 0 SONYPI_EVENT_CAPTURE_PRESSED */ KEY_RESERVED, /* 1 SONYPI_EVENT_CAPTURE_RELEASED */ KEY_RESERVED, /* 2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */ KEY_RESERVED, /* 3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */ KEY_FN_ESC, /* 4 SONYPI_EVENT_FNKEY_ESC */ KEY_FN_F1, /* 5 SONYPI_EVENT_FNKEY_F1 */ KEY_FN_F2, /* 6 SONYPI_EVENT_FNKEY_F2 */ KEY_FN_F3, /* 7 SONYPI_EVENT_FNKEY_F3 */ KEY_FN_F4, /* 8 SONYPI_EVENT_FNKEY_F4 */ KEY_FN_F5, /* 9 SONYPI_EVENT_FNKEY_F5 */ KEY_FN_F6, /* 10 SONYPI_EVENT_FNKEY_F6 */ KEY_FN_F7, /* 11 SONYPI_EVENT_FNKEY_F7 */ KEY_FN_F8, /* 12 SONYPI_EVENT_FNKEY_F8 */ KEY_FN_F9, /* 13 SONYPI_EVENT_FNKEY_F9 */ KEY_FN_F10, /* 14 SONYPI_EVENT_FNKEY_F10 */ KEY_FN_F11, /* 15 SONYPI_EVENT_FNKEY_F11 */ KEY_FN_F12, /* 16 SONYPI_EVENT_FNKEY_F12 */ KEY_FN_F1, /* 17 SONYPI_EVENT_FNKEY_1 */ KEY_FN_F2, /* 18 SONYPI_EVENT_FNKEY_2 */ KEY_FN_D, /* 19 SONYPI_EVENT_FNKEY_D */ KEY_FN_E, /* 20 SONYPI_EVENT_FNKEY_E */ KEY_FN_F, /* 21 SONYPI_EVENT_FNKEY_F */ KEY_FN_S, /* 22 SONYPI_EVENT_FNKEY_S */ KEY_FN_B, /* 23 SONYPI_EVENT_FNKEY_B */ KEY_BLUETOOTH, /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */ KEY_PROG1, /* 25 SONYPI_EVENT_PKEY_P1 */ KEY_PROG2, /* 26 SONYPI_EVENT_PKEY_P2 */ KEY_PROG3, /* 27 SONYPI_EVENT_PKEY_P3 */ KEY_BACK, /* 28 SONYPI_EVENT_BACK_PRESSED */ KEY_BLUETOOTH, /* 29 SONYPI_EVENT_BLUETOOTH_ON */ KEY_BLUETOOTH, /* 30 SONYPI_EVENT_BLUETOOTH_OFF */ KEY_HELP, /* 31 SONYPI_EVENT_HELP_PRESSED */ KEY_FN, /* 32 SONYPI_EVENT_FNKEY_ONLY */ KEY_RESERVED, /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */ KEY_RESERVED, /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */ KEY_RESERVED, /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */ KEY_RESERVED, /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */ KEY_RESERVED, /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */ KEY_RESERVED, /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */ KEY_RESERVED, /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */ KEY_RESERVED, /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */ KEY_ZOOM, /* 41 SONYPI_EVENT_ZOOM_PRESSED */ BTN_THUMB, /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */ KEY_RESERVED, /* 43 SONYPI_EVENT_MEYE_FACE */ KEY_RESERVED, /* 44 SONYPI_EVENT_MEYE_OPPOSITE */ KEY_RESERVED, /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */ KEY_RESERVED, /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */ KEY_WLAN, /* 47 SONYPI_EVENT_WIRELESS_ON */ KEY_WLAN, /* 48 SONYPI_EVENT_WIRELESS_OFF */ KEY_ZOOMIN, /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */ KEY_ZOOMOUT, /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */ KEY_EJECTCD, /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */ KEY_F13, /* 52 SONYPI_EVENT_MODEKEY_PRESSED */ KEY_PROG4, /* 53 SONYPI_EVENT_PKEY_P4 */ KEY_F14, /* 54 SONYPI_EVENT_PKEY_P5 */ KEY_F15, /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */ KEY_VOLUMEUP, /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */ KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */ }; /* release buttons after a short delay if pressed */ static void do_sony_laptop_release_key(struct work_struct *work) { struct sony_laptop_keypress kp; while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) { msleep(10); input_report_key(kp.dev, kp.key, 0); input_sync(kp.dev); } } static DECLARE_WORK(sony_laptop_release_key_work, do_sony_laptop_release_key); /* forward event to the input subsystem */ static void sony_laptop_report_input_event(u8 event) { struct input_dev *jog_dev = sony_laptop_input.jog_dev; struct input_dev *key_dev = sony_laptop_input.key_dev; struct sony_laptop_keypress kp = { NULL }; if (event == SONYPI_EVENT_FNKEY_RELEASED) { /* Nothing, not all VAIOs generate this event */ return; } /* report events */ switch (event) { /* jog_dev events */ case SONYPI_EVENT_JOGDIAL_UP: case SONYPI_EVENT_JOGDIAL_UP_PRESSED: input_report_rel(jog_dev, REL_WHEEL, 1); input_sync(jog_dev); return; case SONYPI_EVENT_JOGDIAL_DOWN: case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED: input_report_rel(jog_dev, REL_WHEEL, -1); input_sync(jog_dev); return; /* key_dev events */ case SONYPI_EVENT_JOGDIAL_PRESSED: kp.key = BTN_MIDDLE; kp.dev = jog_dev; break; default: if (event >= ARRAY_SIZE(sony_laptop_input_index)) { dprintk("sony_laptop_report_input_event, event not known: %d\n", event); break; } if (sony_laptop_input_index[event] != -1) { kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]]; if (kp.key != KEY_UNKNOWN) kp.dev = key_dev; } break; } if (kp.dev) { input_report_key(kp.dev, kp.key, 1); /* we emit the scancode so we can always remap the key */ input_event(kp.dev, EV_MSC, MSC_SCAN, event); input_sync(kp.dev); kfifo_put(sony_laptop_input.fifo, (unsigned char *)&kp, sizeof(kp)); if (!work_pending(&sony_laptop_release_key_work)) queue_work(sony_laptop_input.wq, &sony_laptop_release_key_work); } else dprintk("unknown input event %.2x\n", event); } static int sony_laptop_setup_input(struct acpi_device *acpi_device) { struct input_dev *jog_dev; struct input_dev *key_dev; int i; int error; /* don't run again if already initialized */ if (atomic_add_return(1, &sony_laptop_input.users) > 1) return 0; /* kfifo */ spin_lock_init(&sony_laptop_input.fifo_lock); sony_laptop_input.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL, &sony_laptop_input.fifo_lock); if (IS_ERR(sony_laptop_input.fifo)) { printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n"); error = PTR_ERR(sony_laptop_input.fifo); goto err_dec_users; } /* init workqueue */ sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop"); if (!sony_laptop_input.wq) { printk(KERN_ERR DRV_PFX "Unabe to create workqueue.\n"); error = -ENXIO; goto err_free_kfifo; } /* input keys */ key_dev = input_allocate_device(); if (!key_dev) { error = -ENOMEM; goto err_destroy_wq; } key_dev->name = "Sony Vaio Keys"; key_dev->id.bustype = BUS_ISA; key_dev->id.vendor = PCI_VENDOR_ID_SONY; key_dev->dev.parent = &acpi_device->dev; /* Initialize the Input Drivers: special keys */ set_bit(EV_KEY, key_dev->evbit); set_bit(EV_MSC, key_dev->evbit); set_bit(MSC_SCAN, key_dev->mscbit); key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]); key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map); key_dev->keycode = &sony_laptop_input_keycode_map; for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) { if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) { set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit); } } error = input_register_device(key_dev); if (error) goto err_free_keydev; sony_laptop_input.key_dev = key_dev; /* jogdial */ jog_dev = input_allocate_device(); if (!jog_dev) { error = -ENOMEM; goto err_unregister_keydev; } jog_dev->name = "Sony Vaio Jogdial"; jog_dev->id.bustype = BUS_ISA; jog_dev->id.vendor = PCI_VENDOR_ID_SONY; key_dev->dev.parent = &acpi_device->dev; jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE); jog_dev->relbit[0] = BIT_MASK(REL_WHEEL); error = input_register_device(jog_dev); if (error) goto err_free_jogdev; sony_laptop_input.jog_dev = jog_dev; return 0; err_free_jogdev: input_free_device(jog_dev); err_unregister_keydev: input_unregister_device(key_dev); /* to avoid kref underflow below at input_free_device */ key_dev = NULL; err_free_keydev: input_free_device(key_dev); err_destroy_wq: destroy_workqueue(sony_laptop_input.wq); err_free_kfifo: kfifo_free(sony_laptop_input.fifo); err_dec_users: atomic_dec(&sony_laptop_input.users); return error; } static void sony_laptop_remove_input(void) { /* cleanup only after the last user has gone */ if (!atomic_dec_and_test(&sony_laptop_input.users)) return; /* flush workqueue first */ flush_workqueue(sony_laptop_input.wq); /* destroy input devs */ input_unregister_device(sony_laptop_input.key_dev); sony_laptop_input.key_dev = NULL; if (sony_laptop_input.jog_dev) { input_unregister_device(sony_laptop_input.jog_dev); sony_laptop_input.jog_dev = NULL; } destroy_workqueue(sony_laptop_input.wq); kfifo_free(sony_laptop_input.fifo); } /*********** Platform Device ***********/ static atomic_t sony_pf_users = ATOMIC_INIT(0); static struct platform_driver sony_pf_driver = { .driver = { .name = "sony-laptop", .owner = THIS_MODULE, } }; static struct platform_device *sony_pf_device; static int sony_pf_add(void) { int ret = 0; /* don't run again if already initialized */ if (atomic_add_return(1, &sony_pf_users) > 1) return 0; ret = platform_driver_register(&sony_pf_driver); if (ret) goto out; sony_pf_device = platform_device_alloc("sony-laptop", -1); if (!sony_pf_device) { ret = -ENOMEM; goto out_platform_registered; } ret = platform_device_add(sony_pf_device); if (ret) goto out_platform_alloced; return 0; out_platform_alloced: platform_device_put(sony_pf_device); sony_pf_device = NULL; out_platform_registered: platform_driver_unregister(&sony_pf_driver); out: atomic_dec(&sony_pf_users); return ret; } static void sony_pf_remove(void) { /* deregister only after the last user has gone */ if (!atomic_dec_and_test(&sony_pf_users)) return; platform_device_del(sony_pf_device); platform_device_put(sony_pf_device); platform_driver_unregister(&sony_pf_driver); } /*********** SNC (SNY5001) Device ***********/ /* the device uses 1-based values, while the backlight subsystem uses 0-based values */ #define SONY_MAX_BRIGHTNESS 8 #define SNC_VALIDATE_IN 0 #define SNC_VALIDATE_OUT 1 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *, char *); static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *, const char *, size_t); static int boolean_validate(const int, const int); static int brightness_default_validate(const int, const int); struct sony_nc_value { char *name; /* name of the entry */ char **acpiget; /* names of the ACPI get function */ char **acpiset; /* names of the ACPI set function */ int (*validate)(const int, const int); /* input/output validation */ int value; /* current setting */ int valid; /* Has ever been set */ int debug; /* active only in debug mode ? */ struct device_attribute devattr; /* sysfs atribute */ }; #define SNC_HANDLE_NAMES(_name, _values...) \ static char *snc_##_name[] = { _values, NULL } #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \ { \ .name = __stringify(_name), \ .acpiget = _getters, \ .acpiset = _setters, \ .validate = _validate, \ .debug = _debug, \ .devattr = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \ } #define SNC_HANDLE_NULL { .name = NULL } SNC_HANDLE_NAMES(fnkey_get, "GHKE"); SNC_HANDLE_NAMES(brightness_def_get, "GPBR"); SNC_HANDLE_NAMES(brightness_def_set, "SPBR"); SNC_HANDLE_NAMES(cdpower_get, "GCDP"); SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW"); SNC_HANDLE_NAMES(audiopower_get, "GAZP"); SNC_HANDLE_NAMES(audiopower_set, "AZPW"); SNC_HANDLE_NAMES(lanpower_get, "GLNP"); SNC_HANDLE_NAMES(lanpower_set, "LNPW"); SNC_HANDLE_NAMES(lidstate_get, "GLID"); SNC_HANDLE_NAMES(indicatorlamp_get, "GILS"); SNC_HANDLE_NAMES(indicatorlamp_set, "SILS"); SNC_HANDLE_NAMES(gainbass_get, "GMGB"); SNC_HANDLE_NAMES(gainbass_set, "CMGB"); SNC_HANDLE_NAMES(PID_get, "GPID"); SNC_HANDLE_NAMES(CTR_get, "GCTR"); SNC_HANDLE_NAMES(CTR_set, "SCTR"); SNC_HANDLE_NAMES(PCR_get, "GPCR"); SNC_HANDLE_NAMES(PCR_set, "SPCR"); SNC_HANDLE_NAMES(CMI_get, "GCMI"); SNC_HANDLE_NAMES(CMI_set, "SCMI"); static struct sony_nc_value sony_nc_values[] = { SNC_HANDLE(brightness_default, snc_brightness_def_get, snc_brightness_def_set, brightness_default_validate, 0), SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0), SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0), SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set, boolean_validate, 0), SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set, boolean_validate, 1), SNC_HANDLE(lidstate, snc_lidstate_get, NULL, boolean_validate, 0), SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set, boolean_validate, 0), SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set, boolean_validate, 0), /* unknown methods */ SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1), SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1), SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1), SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1), SNC_HANDLE_NULL }; static acpi_handle sony_nc_acpi_handle; static struct acpi_device *sony_nc_acpi_device = NULL; /* * acpi_evaluate_object wrappers */ static int acpi_callgetfunc(acpi_handle handle, char *name, int *result) { struct acpi_buffer output; union acpi_object out_obj; acpi_status status; output.length = sizeof(out_obj); output.pointer = &out_obj; status = acpi_evaluate_object(handle, name, NULL, &output); if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) { *result = out_obj.integer.value; return 0; } printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n"); return -1; } static int acpi_callsetfunc(acpi_handle handle, char *name, int value, int *result) { struct acpi_object_list params; union acpi_object in_obj; struct acpi_buffer output; union acpi_object out_obj; acpi_status status; params.count = 1; params.pointer = &in_obj; in_obj.type = ACPI_TYPE_INTEGER; in_obj.integer.value = value; output.length = sizeof(out_obj); output.pointer = &out_obj; status = acpi_evaluate_object(handle, name, ¶ms, &output); if (status == AE_OK) { if (result != NULL) { if (out_obj.type != ACPI_TYPE_INTEGER) { printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad " "return type\n"); return -1; } *result = out_obj.integer.value; } return 0; } printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n"); return -1; } static int sony_find_snc_handle(int handle) { int i; int result; for (i = 0x20; i < 0x30; i++) { acpi_callsetfunc(sony_nc_acpi_handle, "SN00", i, &result); if (result == handle) return i-0x20; } return -1; } static int sony_call_snc_handle(int handle, int argument, int *result) { int offset = sony_find_snc_handle(handle); if (offset < 0) return -1; return acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument, result); } /* * sony_nc_values input/output validate functions */ /* brightness_default_validate: * * manipulate input output values to keep consistency with the * backlight framework for which brightness values are 0-based. */ static int brightness_default_validate(const int direction, const int value) { switch (direction) { case SNC_VALIDATE_OUT: return value - 1; case SNC_VALIDATE_IN: if (value >= 0 && value < SONY_MAX_BRIGHTNESS) return value + 1; } return -EINVAL; } /* boolean_validate: * * on input validate boolean values 0/1, on output just pass the * received value. */ static int boolean_validate(const int direction, const int value) { if (direction == SNC_VALIDATE_IN) { if (value != 0 && value != 1) return -EINVAL; } return value; } /* * Sysfs show/store common to all sony_nc_values */ static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr, char *buffer) { int value; struct sony_nc_value *item = container_of(attr, struct sony_nc_value, devattr); if (!*item->acpiget) return -EIO; if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0) return -EIO; if (item->validate) value = item->validate(SNC_VALIDATE_OUT, value); return snprintf(buffer, PAGE_SIZE, "%d\n", value); } static ssize_t sony_nc_sysfs_store(struct device *dev, struct device_attribute *attr, const char *buffer, size_t count) { int value; struct sony_nc_value *item = container_of(attr, struct sony_nc_value, devattr); if (!item->acpiset) return -EIO; if (count > 31) return -EINVAL; value = simple_strtoul(buffer, NULL, 10); if (item->validate) value = item->validate(SNC_VALIDATE_IN, value); if (value < 0) return value; if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0) return -EIO; item->value = value; item->valid = 1; return count; } /* * Backlight device */ static int sony_backlight_update_status(struct backlight_device *bd) { return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT", bd->props.brightness + 1, NULL); } static int sony_backlight_get_brightness(struct backlight_device *bd) { int value; if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) return 0; /* brightness levels are 1-based, while backlight ones are 0-based */ return value - 1; } static struct backlight_device *sony_backlight_device; static struct backlight_ops sony_backlight_ops = { .update_status = sony_backlight_update_status, .get_brightness = sony_backlight_get_brightness, }; /* * New SNC-only Vaios event mapping to driver known keys */ struct sony_nc_event { u8 data; u8 event; }; static struct sony_nc_event sony_100_events[] = { { 0x90, SONYPI_EVENT_PKEY_P1 }, { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED }, { 0x91, SONYPI_EVENT_PKEY_P1 }, { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED }, { 0x81, SONYPI_EVENT_FNKEY_F1 }, { 0x01, SONYPI_EVENT_FNKEY_RELEASED }, { 0x85, SONYPI_EVENT_FNKEY_F5 }, { 0x05, SONYPI_EVENT_FNKEY_RELEASED }, { 0x86, SONYPI_EVENT_FNKEY_F6 }, { 0x06, SONYPI_EVENT_FNKEY_RELEASED }, { 0x87, SONYPI_EVENT_FNKEY_F7 }, { 0x07, SONYPI_EVENT_FNKEY_RELEASED }, { 0x89, SONYPI_EVENT_FNKEY_F9 }, { 0x09, SONYPI_EVENT_FNKEY_RELEASED }, { 0x8A, SONYPI_EVENT_FNKEY_F10 }, { 0x0A, SONYPI_EVENT_FNKEY_RELEASED }, { 0x8C, SONYPI_EVENT_FNKEY_F12 }, { 0x0C, SONYPI_EVENT_FNKEY_RELEASED }, { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED }, { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED }, { 0, 0 }, }; static struct sony_nc_event sony_127_events[] = { { 0x81, SONYPI_EVENT_MODEKEY_PRESSED }, { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED }, { 0x82, SONYPI_EVENT_PKEY_P1 }, { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED }, { 0x83, SONYPI_EVENT_PKEY_P2 }, { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED }, { 0x84, SONYPI_EVENT_PKEY_P3 }, { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED }, { 0x85, SONYPI_EVENT_PKEY_P4 }, { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED }, { 0x86, SONYPI_EVENT_PKEY_P5 }, { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED }, { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED }, { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED }, { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED }, { 0, 0 }, }; /* * ACPI callbacks */ static void sony_acpi_notify(acpi_handle handle, u32 event, void *data) { u32 ev = event; int result; if (ev >= 0x90) { /* New-style event */ int key_handle = 0; ev -= 0x90; if (sony_find_snc_handle(0x100) == ev) key_handle = 0x100; if (sony_find_snc_handle(0x127) == ev) key_handle = 0x127; if (handle) { struct sony_nc_event *key_event; if (sony_call_snc_handle(key_handle, 0x200, &result)) dprintk("sony_acpi_notify, unable to decode" " event 0x%.2x 0x%.2x\n", key_handle, ev); else ev = result & 0xFF; if (key_handle == 0x100) key_event = sony_100_events; else key_event = sony_127_events; for (; key_event->data; key_event++) { if (key_event->data == ev) { ev = key_event->event; break; } } if (!key_event->data) { printk(KERN_INFO DRV_PFX "Unknown event: 0x%x 0x%x\n", key_handle, ev); } } else if (sony_find_snc_handle(0x124) == ev) { sony_nc_rfkill_update(); return; } } dprintk("sony_acpi_notify, event: 0x%.2x\n", ev); sony_laptop_report_input_event(ev); acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev); } static acpi_status sony_walk_callback(acpi_handle handle, u32 level, void *context, void **return_value) { struct acpi_device_info *info; struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; if (ACPI_SUCCESS(acpi_get_object_info(handle, &buffer))) { info = buffer.pointer; printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", (char *)&info->name, info->param_count); kfree(buffer.pointer); } return AE_OK; } /* * ACPI device */ static int sony_nc_function_setup(struct acpi_device *device) { int result; /* Enable all events */ acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result); /* Setup hotkeys */ sony_call_snc_handle(0x0100, 0, &result); sony_call_snc_handle(0x0101, 0, &result); sony_call_snc_handle(0x0102, 0x100, &result); return 0; } static int sony_nc_resume(struct acpi_device *device) { struct sony_nc_value *item; acpi_handle handle; for (item = sony_nc_values; item->name; item++) { int ret; if (!item->valid) continue; ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, item->value, NULL); if (ret < 0) { printk("%s: %d\n", __func__, ret); break; } } if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON", &handle))) { if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL)) dprintk("ECON Method failed\n"); } if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00", &handle))) { dprintk("Doing SNC setup\n"); sony_nc_function_setup(device); } /* set the last requested brightness level */ if (sony_backlight_device && !sony_backlight_update_status(sony_backlight_device)) printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n"); return 0; } static void sony_nc_rfkill_cleanup(void) { int i; for (i = 0; i < SONY_RFKILL_MAX; i++) { if (sony_rfkill_devices[i]) rfkill_unregister(sony_rfkill_devices[i]); } } static int sony_nc_rfkill_get(void *data, enum rfkill_state *state) { int result; int argument = sony_rfkill_address[(long) data]; sony_call_snc_handle(0x124, 0x200, &result); if (result & 0x1) { sony_call_snc_handle(0x124, argument, &result); if (result & 0xf) *state = RFKILL_STATE_UNBLOCKED; else *state = RFKILL_STATE_SOFT_BLOCKED; } else { *state = RFKILL_STATE_HARD_BLOCKED; } return 0; } static int sony_nc_rfkill_set(void *data, enum rfkill_state state) { int result; int argument = sony_rfkill_address[(long) data] + 0x100; if (state == RFKILL_STATE_UNBLOCKED) argument |= 0xff0000; return sony_call_snc_handle(0x124, argument, &result); } static int sony_nc_setup_wifi_rfkill(struct acpi_device *device) { int err = 0; struct rfkill *sony_wifi_rfkill; sony_wifi_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WLAN); if (!sony_wifi_rfkill) return -1; sony_wifi_rfkill->name = "sony-wifi"; sony_wifi_rfkill->toggle_radio = sony_nc_rfkill_set; sony_wifi_rfkill->get_state = sony_nc_rfkill_get; sony_wifi_rfkill->user_claim_unsupported = 1; sony_wifi_rfkill->data = (void *)SONY_WIFI; err = rfkill_register(sony_wifi_rfkill); if (err) rfkill_free(sony_wifi_rfkill); else sony_rfkill_devices[SONY_WIFI] = sony_wifi_rfkill; return err; } static int sony_nc_setup_bluetooth_rfkill(struct acpi_device *device) { int err = 0; struct rfkill *sony_bluetooth_rfkill; sony_bluetooth_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_BLUETOOTH); if (!sony_bluetooth_rfkill) return -1; sony_bluetooth_rfkill->name = "sony-bluetooth"; sony_bluetooth_rfkill->toggle_radio = sony_nc_rfkill_set; sony_bluetooth_rfkill->get_state = sony_nc_rfkill_get; sony_bluetooth_rfkill->user_claim_unsupported = 1; sony_bluetooth_rfkill->data = (void *)SONY_BLUETOOTH; err = rfkill_register(sony_bluetooth_rfkill); if (err) rfkill_free(sony_bluetooth_rfkill); else sony_rfkill_devices[SONY_BLUETOOTH] = sony_bluetooth_rfkill; return err; } static int sony_nc_setup_wwan_rfkill(struct acpi_device *device) { int err = 0; struct rfkill *sony_wwan_rfkill; sony_wwan_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WWAN); if (!sony_wwan_rfkill) return -1; sony_wwan_rfkill->name = "sony-wwan"; sony_wwan_rfkill->toggle_radio = sony_nc_rfkill_set; sony_wwan_rfkill->get_state = sony_nc_rfkill_get; sony_wwan_rfkill->user_claim_unsupported = 1; sony_wwan_rfkill->data = (void *)SONY_WWAN; err = rfkill_register(sony_wwan_rfkill); if (err) rfkill_free(sony_wwan_rfkill); else sony_rfkill_devices[SONY_WWAN] = sony_wwan_rfkill; return err; } static int sony_nc_setup_wimax_rfkill(struct acpi_device *device) { int err = 0; struct rfkill *sony_wimax_rfkill; sony_wimax_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WIMAX); if (!sony_wimax_rfkill) return -1; sony_wimax_rfkill->name = "sony-wimax"; sony_wimax_rfkill->toggle_radio = sony_nc_rfkill_set; sony_wimax_rfkill->get_state = sony_nc_rfkill_get; sony_wimax_rfkill->user_claim_unsupported = 1; sony_wimax_rfkill->data = (void *)SONY_WIMAX; err = rfkill_register(sony_wimax_rfkill); if (err) rfkill_free(sony_wimax_rfkill); else sony_rfkill_devices[SONY_WIMAX] = sony_wimax_rfkill; return err; } static void sony_nc_rfkill_update() { int i; enum rfkill_state state; for (i = 0; i < SONY_RFKILL_MAX; i++) { if (sony_rfkill_devices[i]) { sony_rfkill_devices[i]-> get_state(sony_rfkill_devices[i]->data, &state); rfkill_force_state(sony_rfkill_devices[i], state); } } } static int sony_nc_rfkill_setup(struct acpi_device *device) { int result, ret; if (sony_find_snc_handle(0x124) == -1) return -1; ret = sony_call_snc_handle(0x124, 0xb00, &result); if (ret) { printk(KERN_INFO DRV_PFX "Unable to enumerate rfkill devices: %x\n", ret); return ret; } if (result & 0x1) sony_nc_setup_wifi_rfkill(device); if (result & 0x2) sony_nc_setup_bluetooth_rfkill(device); if (result & 0x1c) sony_nc_setup_wwan_rfkill(device); if (result & 0x20) sony_nc_setup_wimax_rfkill(device); return 0; } static int sony_nc_add(struct acpi_device *device) { acpi_status status; int result = 0; acpi_handle handle; struct sony_nc_value *item; printk(KERN_INFO DRV_PFX "%s v%s.\n", SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION); sony_nc_acpi_device = device; strcpy(acpi_device_class(device), "sony/hotkey"); sony_nc_acpi_handle = device->handle; /* read device status */ result = acpi_bus_get_status(device); /* bail IFF the above call was successful and the device is not present */ if (!result && !device->status.present) { dprintk("Device not present\n"); result = -ENODEV; goto outwalk; } if (debug) { status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle, 1, sony_walk_callback, NULL, NULL); if (ACPI_FAILURE(status)) { printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n"); result = -ENODEV; goto outwalk; } } /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1 * should be respected as we already checked for the device presence above */ if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) { dprintk("Invoking _INI\n"); if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI, NULL, NULL))) dprintk("_INI Method failed\n"); } if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON", &handle))) { if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL)) dprintk("ECON Method failed\n"); } if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00", &handle))) { dprintk("Doing SNC setup\n"); sony_nc_function_setup(device); sony_nc_rfkill_setup(device); } /* setup input devices and helper fifo */ result = sony_laptop_setup_input(device); if (result) { printk(KERN_ERR DRV_PFX "Unabe to create input devices.\n"); goto outwalk; } status = acpi_install_notify_handler(sony_nc_acpi_handle, ACPI_DEVICE_NOTIFY, sony_acpi_notify, NULL); if (ACPI_FAILURE(status)) { printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status); result = -ENODEV; goto outinput; } if (acpi_video_backlight_support()) { printk(KERN_INFO DRV_PFX "brightness ignored, must be " "controlled by ACPI video driver\n"); } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) { sony_backlight_device = backlight_device_register("sony", NULL, NULL, &sony_backlight_ops); if (IS_ERR(sony_backlight_device)) { printk(KERN_WARNING DRV_PFX "unable to register backlight device\n"); sony_backlight_device = NULL; } else { sony_backlight_device->props.brightness = sony_backlight_get_brightness (sony_backlight_device); sony_backlight_device->props.max_brightness = SONY_MAX_BRIGHTNESS - 1; } } result = sony_pf_add(); if (result) goto outbacklight; /* create sony_pf sysfs attributes related to the SNC device */ for (item = sony_nc_values; item->name; ++item) { if (!debug && item->debug) continue; /* find the available acpiget as described in the DSDT */ for (; item->acpiget && *item->acpiget; ++item->acpiget) { if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, *item->acpiget, &handle))) { dprintk("Found %s getter: %s\n", item->name, *item->acpiget); item->devattr.attr.mode |= S_IRUGO; break; } } /* find the available acpiset as described in the DSDT */ for (; item->acpiset && *item->acpiset; ++item->acpiset) { if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, *item->acpiset, &handle))) { dprintk("Found %s setter: %s\n", item->name, *item->acpiset); item->devattr.attr.mode |= S_IWUSR; break; } } if (item->devattr.attr.mode != 0) { result = device_create_file(&sony_pf_device->dev, &item->devattr); if (result) goto out_sysfs; } } return 0; out_sysfs: for (item = sony_nc_values; item->name; ++item) { device_remove_file(&sony_pf_device->dev, &item->devattr); } sony_pf_remove(); outbacklight: if (sony_backlight_device) backlight_device_unregister(sony_backlight_device); status = acpi_remove_notify_handler(sony_nc_acpi_handle, ACPI_DEVICE_NOTIFY, sony_acpi_notify); if (ACPI_FAILURE(status)) printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n"); outinput: sony_laptop_remove_input(); outwalk: sony_nc_rfkill_cleanup(); return result; } static int sony_nc_remove(struct acpi_device *device, int type) { acpi_status status; struct sony_nc_value *item; if (sony_backlight_device) backlight_device_unregister(sony_backlight_device); sony_nc_acpi_device = NULL; status = acpi_remove_notify_handler(sony_nc_acpi_handle, ACPI_DEVICE_NOTIFY, sony_acpi_notify); if (ACPI_FAILURE(status)) printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n"); for (item = sony_nc_values; item->name; ++item) { device_remove_file(&sony_pf_device->dev, &item->devattr); } sony_pf_remove(); sony_laptop_remove_input(); sony_nc_rfkill_cleanup(); dprintk(SONY_NC_DRIVER_NAME " removed.\n"); return 0; } static const struct acpi_device_id sony_device_ids[] = { {SONY_NC_HID, 0}, {SONY_PIC_HID, 0}, {"", 0}, }; MODULE_DEVICE_TABLE(acpi, sony_device_ids); static const struct acpi_device_id sony_nc_device_ids[] = { {SONY_NC_HID, 0}, {"", 0}, }; static struct acpi_driver sony_nc_driver = { .name = SONY_NC_DRIVER_NAME, .class = SONY_NC_CLASS, .ids = sony_nc_device_ids, .owner = THIS_MODULE, .ops = { .add = sony_nc_add, .remove = sony_nc_remove, .resume = sony_nc_resume, }, }; /*********** SPIC (SNY6001) Device ***********/ #define SONYPI_DEVICE_TYPE1 0x00000001 #define SONYPI_DEVICE_TYPE2 0x00000002 #define SONYPI_DEVICE_TYPE3 0x00000004 #define SONYPI_DEVICE_TYPE4 0x00000008 #define SONYPI_TYPE1_OFFSET 0x04 #define SONYPI_TYPE2_OFFSET 0x12 #define SONYPI_TYPE3_OFFSET 0x12 struct sony_pic_ioport { struct acpi_resource_io io1; struct acpi_resource_io io2; struct list_head list; }; struct sony_pic_irq { struct acpi_resource_irq irq; struct list_head list; }; struct sonypi_eventtypes { u8 data; unsigned long mask; struct sonypi_event *events; }; struct device_ctrl { int model; int (*handle_irq)(const u8, const u8); u16 evport_offset; u8 has_camera; u8 has_bluetooth; u8 has_wwan; struct sonypi_eventtypes *event_types; }; struct sony_pic_dev { struct device_ctrl *control; struct acpi_device *acpi_dev; struct sony_pic_irq *cur_irq; struct sony_pic_ioport *cur_ioport; struct list_head interrupts; struct list_head ioports; struct mutex lock; u8 camera_power; u8 bluetooth_power; u8 wwan_power; }; static struct sony_pic_dev spic_dev = { .interrupts = LIST_HEAD_INIT(spic_dev.interrupts), .ioports = LIST_HEAD_INIT(spic_dev.ioports), }; /* Event masks */ #define SONYPI_JOGGER_MASK 0x00000001 #define SONYPI_CAPTURE_MASK 0x00000002 #define SONYPI_FNKEY_MASK 0x00000004 #define SONYPI_BLUETOOTH_MASK 0x00000008 #define SONYPI_PKEY_MASK 0x00000010 #define SONYPI_BACK_MASK 0x00000020 #define SONYPI_HELP_MASK 0x00000040 #define SONYPI_LID_MASK 0x00000080 #define SONYPI_ZOOM_MASK 0x00000100 #define SONYPI_THUMBPHRASE_MASK 0x00000200 #define SONYPI_MEYE_MASK 0x00000400 #define SONYPI_MEMORYSTICK_MASK 0x00000800 #define SONYPI_BATTERY_MASK 0x00001000 #define SONYPI_WIRELESS_MASK 0x00002000 struct sonypi_event { u8 data; u8 event; }; /* The set of possible button release events */ static struct sonypi_event sonypi_releaseev[] = { { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED }, { 0, 0 } }; /* The set of possible jogger events */ static struct sonypi_event sonypi_joggerev[] = { { 0x1f, SONYPI_EVENT_JOGDIAL_UP }, { 0x01, SONYPI_EVENT_JOGDIAL_DOWN }, { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED }, { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED }, { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP }, { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN }, { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED }, { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED }, { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP }, { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN }, { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED }, { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED }, { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED }, { 0, 0 } }; /* The set of possible capture button events */ static struct sonypi_event sonypi_captureev[] = { { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED }, { 0x07, SONYPI_EVENT_CAPTURE_PRESSED }, { 0x40, SONYPI_EVENT_CAPTURE_PRESSED }, { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED }, { 0, 0 } }; /* The set of possible fnkeys events */ static struct sonypi_event sonypi_fnkeyev[] = { { 0x10, SONYPI_EVENT_FNKEY_ESC }, { 0x11, SONYPI_EVENT_FNKEY_F1 }, { 0x12, SONYPI_EVENT_FNKEY_F2 }, { 0x13, SONYPI_EVENT_FNKEY_F3 }, { 0x14, SONYPI_EVENT_FNKEY_F4 }, { 0x15, SONYPI_EVENT_FNKEY_F5 }, { 0x16, SONYPI_EVENT_FNKEY_F6 }, { 0x17, SONYPI_EVENT_FNKEY_F7 }, { 0x18, SONYPI_EVENT_FNKEY_F8 }, { 0x19, SONYPI_EVENT_FNKEY_F9 }, { 0x1a, SONYPI_EVENT_FNKEY_F10 }, { 0x1b, SONYPI_EVENT_FNKEY_F11 }, { 0x1c, SONYPI_EVENT_FNKEY_F12 }, { 0x1f, SONYPI_EVENT_FNKEY_RELEASED }, { 0x21, SONYPI_EVENT_FNKEY_1 }, { 0x22, SONYPI_EVENT_FNKEY_2 }, { 0x31, SONYPI_EVENT_FNKEY_D }, { 0x32, SONYPI_EVENT_FNKEY_E }, { 0x33, SONYPI_EVENT_FNKEY_F }, { 0x34, SONYPI_EVENT_FNKEY_S }, { 0x35, SONYPI_EVENT_FNKEY_B }, { 0x36, SONYPI_EVENT_FNKEY_ONLY }, { 0, 0 } }; /* The set of possible program key events */ static struct sonypi_event sonypi_pkeyev[] = { { 0x01, SONYPI_EVENT_PKEY_P1 }, { 0x02, SONYPI_EVENT_PKEY_P2 }, { 0x04, SONYPI_EVENT_PKEY_P3 }, { 0x20, SONYPI_EVENT_PKEY_P1 }, { 0, 0 } }; /* The set of possible bluetooth events */ static struct sonypi_event sonypi_blueev[] = { { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED }, { 0x59, SONYPI_EVENT_BLUETOOTH_ON }, { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF }, { 0, 0 } }; /* The set of possible wireless events */ static struct sonypi_event sonypi_wlessev[] = { { 0x59, SONYPI_EVENT_WIRELESS_ON }, { 0x5a, SONYPI_EVENT_WIRELESS_OFF }, { 0, 0 } }; /* The set of possible back button events */ static struct sonypi_event sonypi_backev[] = { { 0x20, SONYPI_EVENT_BACK_PRESSED }, { 0, 0 } }; /* The set of possible help button events */ static struct sonypi_event sonypi_helpev[] = { { 0x3b, SONYPI_EVENT_HELP_PRESSED }, { 0, 0 } }; /* The set of possible lid events */ static struct sonypi_event sonypi_lidev[] = { { 0x51, SONYPI_EVENT_LID_CLOSED }, { 0x50, SONYPI_EVENT_LID_OPENED }, { 0, 0 } }; /* The set of possible zoom events */ static struct sonypi_event sonypi_zoomev[] = { { 0x39, SONYPI_EVENT_ZOOM_PRESSED }, { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED }, { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED }, { 0x04, SONYPI_EVENT_ZOOM_PRESSED }, { 0, 0 } }; /* The set of possible thumbphrase events */ static struct sonypi_event sonypi_thumbphraseev[] = { { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED }, { 0, 0 } }; /* The set of possible motioneye camera events */ static struct sonypi_event sonypi_meyeev[] = { { 0x00, SONYPI_EVENT_MEYE_FACE }, { 0x01, SONYPI_EVENT_MEYE_OPPOSITE }, { 0, 0 } }; /* The set of possible memorystick events */ static struct sonypi_event sonypi_memorystickev[] = { { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT }, { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT }, { 0, 0 } }; /* The set of possible battery events */ static struct sonypi_event sonypi_batteryev[] = { { 0x20, SONYPI_EVENT_BATTERY_INSERT }, { 0x30, SONYPI_EVENT_BATTERY_REMOVE }, { 0, 0 } }; /* The set of possible volume events */ static struct sonypi_event sonypi_volumeev[] = { { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED }, { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED }, { 0, 0 } }; /* The set of possible brightness events */ static struct sonypi_event sonypi_brightnessev[] = { { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED }, { 0, 0 } }; static struct sonypi_eventtypes type1_events[] = { { 0, 0xffffffff, sonypi_releaseev }, { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev }, { 0x30, SONYPI_LID_MASK, sonypi_lidev }, { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev }, { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev }, { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev }, { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev }, { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev }, { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev }, { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev }, { 0 }, }; static struct sonypi_eventtypes type2_events[] = { { 0, 0xffffffff, sonypi_releaseev }, { 0x38, SONYPI_LID_MASK, sonypi_lidev }, { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev }, { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev }, { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev }, { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev }, { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev }, { 0x11, SONYPI_BACK_MASK, sonypi_backev }, { 0x21, SONYPI_HELP_MASK, sonypi_helpev }, { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev }, { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev }, { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev }, { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev }, { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev }, { 0 }, }; static struct sonypi_eventtypes type3_events[] = { { 0, 0xffffffff, sonypi_releaseev }, { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev }, { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev }, { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev }, { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev }, { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev }, { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev }, { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev }, { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev }, { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev }, { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev }, { 0 }, }; /* low level spic calls */ #define ITERATIONS_LONG 10000 #define ITERATIONS_SHORT 10 #define wait_on_command(command, iterations) { \ unsigned int n = iterations; \ while (--n && (command)) \ udelay(1); \ if (!n) \ dprintk("command failed at %s : %s (line %d)\n", \ __FILE__, __func__, __LINE__); \ } static u8 sony_pic_call1(u8 dev) { u8 v1, v2; wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG); outb(dev, spic_dev.cur_ioport->io1.minimum + 4); v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4); v2 = inb_p(spic_dev.cur_ioport->io1.minimum); dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1); return v2; } static u8 sony_pic_call2(u8 dev, u8 fn) { u8 v1; wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG); outb(dev, spic_dev.cur_ioport->io1.minimum + 4); wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG); outb(fn, spic_dev.cur_ioport->io1.minimum); v1 = inb_p(spic_dev.cur_ioport->io1.minimum); dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1); return v1; } static u8 sony_pic_call3(u8 dev, u8 fn, u8 v) { u8 v1; wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG); outb(dev, spic_dev.cur_ioport->io1.minimum + 4); wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG); outb(fn, spic_dev.cur_ioport->io1.minimum); wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG); outb(v, spic_dev.cur_ioport->io1.minimum); v1 = inb_p(spic_dev.cur_ioport->io1.minimum); dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v, v1); return v1; } /* * minidrivers for SPIC models */ static int type3_handle_irq(const u8 data_mask, const u8 ev) { /* * 0x31 could mean we have to take some extra action and wait for * the next irq for some Type3 models, it will generate a new * irq and we can read new data from the device: * - 0x5c and 0x5f requires 0xA0 * - 0x61 requires 0xB3 */ if (data_mask == 0x31) { if (ev == 0x5c || ev == 0x5f) sony_pic_call1(0xA0); else if (ev == 0x61) sony_pic_call1(0xB3); return 0; } return 1; } static struct device_ctrl spic_types[] = { { .model = SONYPI_DEVICE_TYPE1, .handle_irq = NULL, .evport_offset = SONYPI_TYPE1_OFFSET, .event_types = type1_events, }, { .model = SONYPI_DEVICE_TYPE2, .handle_irq = NULL, .evport_offset = SONYPI_TYPE2_OFFSET, .event_types = type2_events, }, { .model = SONYPI_DEVICE_TYPE3, .handle_irq = type3_handle_irq, .evport_offset = SONYPI_TYPE3_OFFSET, .event_types = type3_events, }, }; static void sony_pic_detect_device_type(struct sony_pic_dev *dev) { struct pci_dev *pcidev; pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, NULL); if (pcidev) { dev->control = &spic_types[0]; goto out; } pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, NULL); if (pcidev) { dev->control = &spic_types[2]; goto out; } pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, NULL); if (pcidev) { dev->control = &spic_types[2]; goto out; } pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, NULL); if (pcidev) { dev->control = &spic_types[2]; goto out; } pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_1, NULL); if (pcidev) { dev->control = &spic_types[2]; goto out; } /* default */ dev->control = &spic_types[1]; out: if (pcidev) pci_dev_put(pcidev); printk(KERN_INFO DRV_PFX "detected Type%d model\n", dev->control->model == SONYPI_DEVICE_TYPE1 ? 1 : dev->control->model == SONYPI_DEVICE_TYPE2 ? 2 : 3); } /* camera tests and poweron/poweroff */ #define SONYPI_CAMERA_PICTURE 5 #define SONYPI_CAMERA_CONTROL 0x10 #define SONYPI_CAMERA_BRIGHTNESS 0 #define SONYPI_CAMERA_CONTRAST 1 #define SONYPI_CAMERA_HUE 2 #define SONYPI_CAMERA_COLOR 3 #define SONYPI_CAMERA_SHARPNESS 4 #define SONYPI_CAMERA_EXPOSURE_MASK 0xC #define SONYPI_CAMERA_WHITE_BALANCE_MASK 0x3 #define SONYPI_CAMERA_PICTURE_MODE_MASK 0x30 #define SONYPI_CAMERA_MUTE_MASK 0x40 /* the rest don't need a loop until not 0xff */ #define SONYPI_CAMERA_AGC 6 #define SONYPI_CAMERA_AGC_MASK 0x30 #define SONYPI_CAMERA_SHUTTER_MASK 0x7 #define SONYPI_CAMERA_SHUTDOWN_REQUEST 7 #define SONYPI_CAMERA_CONTROL 0x10 #define SONYPI_CAMERA_STATUS 7 #define SONYPI_CAMERA_STATUS_READY 0x2 #define SONYPI_CAMERA_STATUS_POSITION 0x4 #define SONYPI_DIRECTION_BACKWARDS 0x4 #define SONYPI_CAMERA_REVISION 8 #define SONYPI_CAMERA_ROMVERSION 9 static int __sony_pic_camera_ready(void) { u8 v; v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS); return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY)); } static int __sony_pic_camera_off(void) { if (!camera) { printk(KERN_WARNING DRV_PFX "camera control not enabled\n"); return -ENODEV; } wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, SONYPI_CAMERA_MUTE_MASK), ITERATIONS_SHORT); if (spic_dev.camera_power) { sony_pic_call2(0x91, 0); spic_dev.camera_power = 0; } return 0; } static int __sony_pic_camera_on(void) { int i, j, x; if (!camera) { printk(KERN_WARNING DRV_PFX "camera control not enabled\n"); return -ENODEV; } if (spic_dev.camera_power) return 0; for (j = 5; j > 0; j--) { for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++) msleep(10); sony_pic_call1(0x93); for (i = 400; i > 0; i--) { if (__sony_pic_camera_ready()) break; msleep(10); } if (i) break; } if (j == 0) { printk(KERN_WARNING DRV_PFX "failed to power on camera\n"); return -ENODEV; } wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL, 0x5a), ITERATIONS_SHORT); spic_dev.camera_power = 1; return 0; } /* External camera command (exported to the motion eye v4l driver) */ int sony_pic_camera_command(int command, u8 value) { if (!camera) return -EIO; mutex_lock(&spic_dev.lock); switch (command) { case SONY_PIC_COMMAND_SETCAMERA: if (value) __sony_pic_camera_on(); else __sony_pic_camera_off(); break; case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS: wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value), ITERATIONS_SHORT); break; case SONY_PIC_COMMAND_SETCAMERACONTRAST: wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value), ITERATIONS_SHORT); break; case SONY_PIC_COMMAND_SETCAMERAHUE: wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value), ITERATIONS_SHORT); break; case SONY_PIC_COMMAND_SETCAMERACOLOR: wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value), ITERATIONS_SHORT); break; case SONY_PIC_COMMAND_SETCAMERASHARPNESS: wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value), ITERATIONS_SHORT); break; case SONY_PIC_COMMAND_SETCAMERAPICTURE: wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value), ITERATIONS_SHORT); break; case SONY_PIC_COMMAND_SETCAMERAAGC: wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value), ITERATIONS_SHORT); break; default: printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n", command); break; } mutex_unlock(&spic_dev.lock); return 0; } EXPORT_SYMBOL(sony_pic_camera_command); /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */ static void sony_pic_set_wwanpower(u8 state) { state = !!state; mutex_lock(&spic_dev.lock); if (spic_dev.wwan_power == state) { mutex_unlock(&spic_dev.lock); return; } sony_pic_call2(0xB0, state); spic_dev.wwan_power = state; mutex_unlock(&spic_dev.lock); } static ssize_t sony_pic_wwanpower_store(struct device *dev, struct device_attribute *attr, const char *buffer, size_t count) { unsigned long value; if (count > 31) return -EINVAL; value = simple_strtoul(buffer, NULL, 10); sony_pic_set_wwanpower(value); return count; } static ssize_t sony_pic_wwanpower_show(struct device *dev, struct device_attribute *attr, char *buffer) { ssize_t count; mutex_lock(&spic_dev.lock); count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power); mutex_unlock(&spic_dev.lock); return count; } /* bluetooth subsystem power state */ static void __sony_pic_set_bluetoothpower(u8 state) { state = !!state; if (spic_dev.bluetooth_power == state) return; sony_pic_call2(0x96, state); sony_pic_call1(0x82); spic_dev.bluetooth_power = state; } static ssize_t sony_pic_bluetoothpower_store(struct device *dev, struct device_attribute *attr, const char *buffer, size_t count) { unsigned long value; if (count > 31) return -EINVAL; value = simple_strtoul(buffer, NULL, 10); mutex_lock(&spic_dev.lock); __sony_pic_set_bluetoothpower(value); mutex_unlock(&spic_dev.lock); return count; } static ssize_t sony_pic_bluetoothpower_show(struct device *dev, struct device_attribute *attr, char *buffer) { ssize_t count = 0; mutex_lock(&spic_dev.lock); count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power); mutex_unlock(&spic_dev.lock); return count; } /* fan speed */ /* FAN0 information (reverse engineered from ACPI tables) */ #define SONY_PIC_FAN0_STATUS 0x93 static int sony_pic_set_fanspeed(unsigned long value) { return ec_write(SONY_PIC_FAN0_STATUS, value); } static int sony_pic_get_fanspeed(u8 *value) { return ec_read(SONY_PIC_FAN0_STATUS, value); } static ssize_t sony_pic_fanspeed_store(struct device *dev, struct device_attribute *attr, const char *buffer, size_t count) { unsigned long value; if (count > 31) return -EINVAL; value = simple_strtoul(buffer, NULL, 10); if (sony_pic_set_fanspeed(value)) return -EIO; return count; } static ssize_t sony_pic_fanspeed_show(struct device *dev, struct device_attribute *attr, char *buffer) { u8 value = 0; if (sony_pic_get_fanspeed(&value)) return -EIO; return snprintf(buffer, PAGE_SIZE, "%d\n", value); } #define SPIC_ATTR(_name, _mode) \ struct device_attribute spic_attr_##_name = __ATTR(_name, \ _mode, sony_pic_## _name ##_show, \ sony_pic_## _name ##_store) static SPIC_ATTR(bluetoothpower, 0644); static SPIC_ATTR(wwanpower, 0644); static SPIC_ATTR(fanspeed, 0644); static struct attribute *spic_attributes[] = { &spic_attr_bluetoothpower.attr, &spic_attr_wwanpower.attr, &spic_attr_fanspeed.attr, NULL }; static struct attribute_group spic_attribute_group = { .attrs = spic_attributes }; /******** SONYPI compatibility **********/ #ifdef CONFIG_SONYPI_COMPAT /* battery / brightness / temperature addresses */ #define SONYPI_BAT_FLAGS 0x81 #define SONYPI_LCD_LIGHT 0x96 #define SONYPI_BAT1_PCTRM 0xa0 #define SONYPI_BAT1_LEFT 0xa2 #define SONYPI_BAT1_MAXRT 0xa4 #define SONYPI_BAT2_PCTRM 0xa8 #define SONYPI_BAT2_LEFT 0xaa #define SONYPI_BAT2_MAXRT 0xac #define SONYPI_BAT1_MAXTK 0xb0 #define SONYPI_BAT1_FULL 0xb2 #define SONYPI_BAT2_MAXTK 0xb8 #define SONYPI_BAT2_FULL 0xba #define SONYPI_TEMP_STATUS 0xC1 struct sonypi_compat_s { struct fasync_struct *fifo_async; struct kfifo *fifo; spinlock_t fifo_lock; wait_queue_head_t fifo_proc_list; atomic_t open_count; }; static struct sonypi_compat_s sonypi_compat = { .open_count = ATOMIC_INIT(0), }; static int sonypi_misc_fasync(int fd, struct file *filp, int on) { int retval; retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async); if (retval < 0) return retval; return 0; } static int sonypi_misc_release(struct inode *inode, struct file *file) { atomic_dec(&sonypi_compat.open_count); return 0; } static int sonypi_misc_open(struct inode *inode, struct file *file) { /* Flush input queue on first open */ lock_kernel(); if (atomic_inc_return(&sonypi_compat.open_count) == 1) kfifo_reset(sonypi_compat.fifo); unlock_kernel(); return 0; } static ssize_t sonypi_misc_read(struct file *file, char __user *buf, size_t count, loff_t *pos) { ssize_t ret; unsigned char c; if ((kfifo_len(sonypi_compat.fifo) == 0) && (file->f_flags & O_NONBLOCK)) return -EAGAIN; ret = wait_event_interruptible(sonypi_compat.fifo_proc_list, kfifo_len(sonypi_compat.fifo) != 0); if (ret) return ret; while (ret < count && (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) { if (put_user(c, buf++)) return -EFAULT; ret++; } if (ret > 0) { struct inode *inode = file->f_path.dentry->d_inode; inode->i_atime = current_fs_time(inode->i_sb); } return ret; } static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait) { poll_wait(file, &sonypi_compat.fifo_proc_list, wait); if (kfifo_len(sonypi_compat.fifo)) return POLLIN | POLLRDNORM; return 0; } static int ec_read16(u8 addr, u16 *value) { u8 val_lb, val_hb; if (ec_read(addr, &val_lb)) return -1; if (ec_read(addr + 1, &val_hb)) return -1; *value = val_lb | (val_hb << 8); return 0; } static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) { int ret = 0; void __user *argp = (void __user *)arg; u8 val8; u16 val16; int value; mutex_lock(&spic_dev.lock); switch (cmd) { case SONYPI_IOCGBRT: if (sony_backlight_device == NULL) { ret = -EIO; break; } if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) { ret = -EIO; break; } val8 = ((value & 0xff) - 1) << 5; if (copy_to_user(argp, &val8, sizeof(val8))) ret = -EFAULT; break; case SONYPI_IOCSBRT: if (sony_backlight_device == NULL) { ret = -EIO; break; } if (copy_from_user(&val8, argp, sizeof(val8))) { ret = -EFAULT; break; } if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT", (val8 >> 5) + 1, NULL)) { ret = -EIO; break; } /* sync the backlight device status */ sony_backlight_device->props.brightness = sony_backlight_get_brightness(sony_backlight_device); break; case SONYPI_IOCGBAT1CAP: if (ec_read16(SONYPI_BAT1_FULL, &val16)) { ret = -EIO; break; } if (copy_to_user(argp, &val16, sizeof(val16))) ret = -EFAULT; break; case SONYPI_IOCGBAT1REM: if (ec_read16(SONYPI_BAT1_LEFT, &val16)) { ret = -EIO; break; } if (copy_to_user(argp, &val16, sizeof(val16))) ret = -EFAULT; break; case SONYPI_IOCGBAT2CAP: if (ec_read16(SONYPI_BAT2_FULL, &val16)) { ret = -EIO; break; } if (copy_to_user(argp, &val16, sizeof(val16))) ret = -EFAULT; break; case SONYPI_IOCGBAT2REM: if (ec_read16(SONYPI_BAT2_LEFT, &val16)) { ret = -EIO; break; } if (copy_to_user(argp, &val16, sizeof(val16))) ret = -EFAULT; break; case SONYPI_IOCGBATFLAGS: if (ec_read(SONYPI_BAT_FLAGS, &val8)) { ret = -EIO; break; } val8 &= 0x07; if (copy_to_user(argp, &val8, sizeof(val8))) ret = -EFAULT; break; case SONYPI_IOCGBLUE: val8 = spic_dev.bluetooth_power; if (copy_to_user(argp, &val8, sizeof(val8))) ret = -EFAULT; break; case SONYPI_IOCSBLUE: if (copy_from_user(&val8, argp, sizeof(val8))) { ret = -EFAULT; break; } __sony_pic_set_bluetoothpower(val8); break; /* FAN Controls */ case SONYPI_IOCGFAN: if (sony_pic_get_fanspeed(&val8)) { ret = -EIO; break; } if (copy_to_user(argp, &val8, sizeof(val8))) ret = -EFAULT; break; case SONYPI_IOCSFAN: if (copy_from_user(&val8, argp, sizeof(val8))) { ret = -EFAULT; break; } if (sony_pic_set_fanspeed(val8)) ret = -EIO; break; /* GET Temperature (useful under APM) */ case SONYPI_IOCGTEMP: if (ec_read(SONYPI_TEMP_STATUS, &val8)) { ret = -EIO; break; } if (copy_to_user(argp, &val8, sizeof(val8))) ret = -EFAULT; break; default: ret = -EINVAL; } mutex_unlock(&spic_dev.lock); return ret; } static const struct file_operations sonypi_misc_fops = { .owner = THIS_MODULE, .read = sonypi_misc_read, .poll = sonypi_misc_poll, .open = sonypi_misc_open, .release = sonypi_misc_release, .fasync = sonypi_misc_fasync, .unlocked_ioctl = sonypi_misc_ioctl, }; static struct miscdevice sonypi_misc_device = { .minor = MISC_DYNAMIC_MINOR, .name = "sonypi", .fops = &sonypi_misc_fops, }; static void sonypi_compat_report_event(u8 event) { kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event)); kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN); wake_up_interruptible(&sonypi_compat.fifo_proc_list); } static int sonypi_compat_init(void) { int error; spin_lock_init(&sonypi_compat.fifo_lock); sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL, &sonypi_compat.fifo_lock); if (IS_ERR(sonypi_compat.fifo)) { printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n"); return PTR_ERR(sonypi_compat.fifo); } init_waitqueue_head(&sonypi_compat.fifo_proc_list); if (minor != -1) sonypi_misc_device.minor = minor; error = misc_register(&sonypi_misc_device); if (error) { printk(KERN_ERR DRV_PFX "misc_register failed\n"); goto err_free_kfifo; } if (minor == -1) printk(KERN_INFO DRV_PFX "device allocated minor is %d\n", sonypi_misc_device.minor); return 0; err_free_kfifo: kfifo_free(sonypi_compat.fifo); return error; } static void sonypi_compat_exit(void) { misc_deregister(&sonypi_misc_device); kfifo_free(sonypi_compat.fifo); } #else static int sonypi_compat_init(void) { return 0; } static void sonypi_compat_exit(void) { } static void sonypi_compat_report_event(u8 event) { } #endif /* CONFIG_SONYPI_COMPAT */ /* * ACPI callbacks */ static acpi_status sony_pic_read_possible_resource(struct acpi_resource *resource, void *context) { u32 i; struct sony_pic_dev *dev = (struct sony_pic_dev *)context; switch (resource->type) { case ACPI_RESOURCE_TYPE_START_DEPENDENT: { /* start IO enumeration */ struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL); if (!ioport) return AE_ERROR; list_add(&ioport->list, &dev->ioports); return AE_OK; } case ACPI_RESOURCE_TYPE_END_DEPENDENT: /* end IO enumeration */ return AE_OK; case ACPI_RESOURCE_TYPE_IRQ: { struct acpi_resource_irq *p = &resource->data.irq; struct sony_pic_irq *interrupt = NULL; if (!p || !p->interrupt_count) { /* * IRQ descriptors may have no IRQ# bits set, * particularly those those w/ _STA disabled */ dprintk("Blank IRQ resource\n"); return AE_OK; } for (i = 0; i < p->interrupt_count; i++) { if (!p->interrupts[i]) { printk(KERN_WARNING DRV_PFX "Invalid IRQ %d\n", p->interrupts[i]); continue; } interrupt = kzalloc(sizeof(*interrupt), GFP_KERNEL); if (!interrupt) return AE_ERROR; list_add(&interrupt->list, &dev->interrupts); interrupt->irq.triggering = p->triggering; interrupt->irq.polarity = p->polarity; interrupt->irq.sharable = p->sharable; interrupt->irq.interrupt_count = 1; interrupt->irq.interrupts[0] = p->interrupts[i]; } return AE_OK; } case ACPI_RESOURCE_TYPE_IO: { struct acpi_resource_io *io = &resource->data.io; struct sony_pic_ioport *ioport = list_first_entry(&dev->ioports, struct sony_pic_ioport, list); if (!io) { dprintk("Blank IO resource\n"); return AE_OK; } if (!ioport->io1.minimum) { memcpy(&ioport->io1, io, sizeof(*io)); dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum, ioport->io1.address_length); } else if (!ioport->io2.minimum) { memcpy(&ioport->io2, io, sizeof(*io)); dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum, ioport->io2.address_length); } else { printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n"); return AE_ERROR; } return AE_OK; } default: dprintk("Resource %d isn't an IRQ nor an IO port\n", resource->type); case ACPI_RESOURCE_TYPE_END_TAG: return AE_OK; } return AE_CTRL_TERMINATE; } static int sony_pic_possible_resources(struct acpi_device *device) { int result = 0; acpi_status status = AE_OK; if (!device) return -EINVAL; /* get device status */ /* see acpi_pci_link_get_current acpi_pci_link_get_possible */ dprintk("Evaluating _STA\n"); result = acpi_bus_get_status(device); if (result) { printk(KERN_WARNING DRV_PFX "Unable to read status\n"); goto end; } if (!device->status.enabled) dprintk("Device disabled\n"); else dprintk("Device enabled\n"); /* * Query and parse 'method' */ dprintk("Evaluating %s\n", METHOD_NAME__PRS); status = acpi_walk_resources(device->handle, METHOD_NAME__PRS, sony_pic_read_possible_resource, &spic_dev); if (ACPI_FAILURE(status)) { printk(KERN_WARNING DRV_PFX "Failure evaluating %s\n", METHOD_NAME__PRS); result = -ENODEV; } end: return result; } /* * Disable the spic device by calling its _DIS method */ static int sony_pic_disable(struct acpi_device *device) { acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL, NULL); if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND) return -ENXIO; dprintk("Device disabled\n"); return 0; } /* * Based on drivers/acpi/pci_link.c:acpi_pci_link_set * * Call _SRS to set current resources */ static int sony_pic_enable(struct acpi_device *device, struct sony_pic_ioport *ioport, struct sony_pic_irq *irq) { acpi_status status; int result = 0; /* Type 1 resource layout is: * IO * IO * IRQNoFlags * End * * Type 2 and 3 resource layout is: * IO * IRQNoFlags * End */ struct { struct acpi_resource res1; struct acpi_resource res2; struct acpi_resource res3; struct acpi_resource res4; } *resource; struct acpi_buffer buffer = { 0, NULL }; if (!ioport || !irq) return -EINVAL; /* init acpi_buffer */ resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL); if (!resource) return -ENOMEM; buffer.length = sizeof(*resource) + 1; buffer.pointer = resource; /* setup Type 1 resources */ if (spic_dev.control->model == SONYPI_DEVICE_TYPE1) { /* setup io resources */ resource->res1.type = ACPI_RESOURCE_TYPE_IO; resource->res1.length = sizeof(struct acpi_resource); memcpy(&resource->res1.data.io, &ioport->io1, sizeof(struct acpi_resource_io)); resource->res2.type = ACPI_RESOURCE_TYPE_IO; resource->res2.length = sizeof(struct acpi_resource); memcpy(&resource->res2.data.io, &ioport->io2, sizeof(struct acpi_resource_io)); /* setup irq resource */ resource->res3.type = ACPI_RESOURCE_TYPE_IRQ; resource->res3.length = sizeof(struct acpi_resource); memcpy(&resource->res3.data.irq, &irq->irq, sizeof(struct acpi_resource_irq)); /* we requested a shared irq */ resource->res3.data.irq.sharable = ACPI_SHARED; resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG; } /* setup Type 2/3 resources */ else { /* setup io resource */ resource->res1.type = ACPI_RESOURCE_TYPE_IO; resource->res1.length = sizeof(struct acpi_resource); memcpy(&resource->res1.data.io, &ioport->io1, sizeof(struct acpi_resource_io)); /* setup irq resource */ resource->res2.type = ACPI_RESOURCE_TYPE_IRQ; resource->res2.length = sizeof(struct acpi_resource); memcpy(&resource->res2.data.irq, &irq->irq, sizeof(struct acpi_resource_irq)); /* we requested a shared irq */ resource->res2.data.irq.sharable = ACPI_SHARED; resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG; } /* Attempt to set the resource */ dprintk("Evaluating _SRS\n"); status = acpi_set_current_resources(device->handle, &buffer); /* check for total failure */ if (ACPI_FAILURE(status)) { printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n"); result = -ENODEV; goto end; } /* Necessary device initializations calls (from sonypi) */ sony_pic_call1(0x82); sony_pic_call2(0x81, 0xff); sony_pic_call1(compat ? 0x92 : 0x82); end: kfree(resource); return result; } /***************** * * ISR: some event is available * *****************/ static irqreturn_t sony_pic_irq(int irq, void *dev_id) { int i, j; u8 ev = 0; u8 data_mask = 0; u8 device_event = 0; struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id; ev = inb_p(dev->cur_ioport->io1.minimum); if (dev->cur_ioport->io2.minimum) data_mask = inb_p(dev->cur_ioport->io2.minimum); else data_mask = inb_p(dev->cur_ioport->io1.minimum + dev->control->evport_offset); dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n", ev, data_mask, dev->cur_ioport->io1.minimum, dev->control->evport_offset); if (ev == 0x00 || ev == 0xff) return IRQ_HANDLED; for (i = 0; dev->control->event_types[i].mask; i++) { if ((data_mask & dev->control->event_types[i].data) != dev->control->event_types[i].data) continue; if (!(mask & dev->control->event_types[i].mask)) continue; for (j = 0; dev->control->event_types[i].events[j].event; j++) { if (ev == dev->control->event_types[i].events[j].data) { device_event = dev->control-> event_types[i].events[j].event; goto found; } } } /* Still not able to decode the event try to pass * it over to the minidriver */ if (dev->control->handle_irq && dev->control->handle_irq(data_mask, ev) == 0) return IRQ_HANDLED; dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n", ev, data_mask, dev->cur_ioport->io1.minimum, dev->control->evport_offset); return IRQ_HANDLED; found: sony_laptop_report_input_event(device_event); acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event); sonypi_compat_report_event(device_event); return IRQ_HANDLED; } /***************** * * ACPI driver * *****************/ static int sony_pic_remove(struct acpi_device *device, int type) { struct sony_pic_ioport *io, *tmp_io; struct sony_pic_irq *irq, *tmp_irq; if (sony_pic_disable(device)) { printk(KERN_ERR DRV_PFX "Couldn't disable device.\n"); return -ENXIO; } free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev); release_region(spic_dev.cur_ioport->io1.minimum, spic_dev.cur_ioport->io1.address_length); if (spic_dev.cur_ioport->io2.minimum) release_region(spic_dev.cur_ioport->io2.minimum, spic_dev.cur_ioport->io2.address_length); sonypi_compat_exit(); sony_laptop_remove_input(); /* pf attrs */ sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group); sony_pf_remove(); list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) { list_del(&io->list); kfree(io); } list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) { list_del(&irq->list); kfree(irq); } spic_dev.cur_ioport = NULL; spic_dev.cur_irq = NULL; dprintk(SONY_PIC_DRIVER_NAME " removed.\n"); return 0; } static int sony_pic_add(struct acpi_device *device) { int result; struct sony_pic_ioport *io, *tmp_io; struct sony_pic_irq *irq, *tmp_irq; printk(KERN_INFO DRV_PFX "%s v%s.\n", SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION); spic_dev.acpi_dev = device; strcpy(acpi_device_class(device), "sony/hotkey"); sony_pic_detect_device_type(&spic_dev); mutex_init(&spic_dev.lock); /* read _PRS resources */ result = sony_pic_possible_resources(device); if (result) { printk(KERN_ERR DRV_PFX "Unabe to read possible resources.\n"); goto err_free_resources; } /* setup input devices and helper fifo */ result = sony_laptop_setup_input(device); if (result) { printk(KERN_ERR DRV_PFX "Unabe to create input devices.\n"); goto err_free_resources; } if (sonypi_compat_init()) goto err_remove_input; /* request io port */ list_for_each_entry_reverse(io, &spic_dev.ioports, list) { if (request_region(io->io1.minimum, io->io1.address_length, "Sony Programable I/O Device")) { dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n", io->io1.minimum, io->io1.maximum, io->io1.address_length); /* Type 1 have 2 ioports */ if (io->io2.minimum) { if (request_region(io->io2.minimum, io->io2.address_length, "Sony Programable I/O Device")) { dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n", io->io2.minimum, io->io2.maximum, io->io2.address_length); spic_dev.cur_ioport = io; break; } else { dprintk("Unable to get I/O port2: " "0x%.4x (0x%.4x) + 0x%.2x\n", io->io2.minimum, io->io2.maximum, io->io2.address_length); release_region(io->io1.minimum, io->io1.address_length); } } else { spic_dev.cur_ioport = io; break; } } } if (!spic_dev.cur_ioport) { printk(KERN_ERR DRV_PFX "Failed to request_region.\n"); result = -ENODEV; goto err_remove_compat; } /* request IRQ */ list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) { if (!request_irq(irq->irq.interrupts[0], sony_pic_irq, IRQF_SHARED, "sony-laptop", &spic_dev)) { dprintk("IRQ: %d - triggering: %d - " "polarity: %d - shr: %d\n", irq->irq.interrupts[0], irq->irq.triggering, irq->irq.polarity, irq->irq.sharable); spic_dev.cur_irq = irq; break; } } if (!spic_dev.cur_irq) { printk(KERN_ERR DRV_PFX "Failed to request_irq.\n"); result = -ENODEV; goto err_release_region; } /* set resource status _SRS */ result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq); if (result) { printk(KERN_ERR DRV_PFX "Couldn't enable device.\n"); goto err_free_irq; } spic_dev.bluetooth_power = -1; /* create device attributes */ result = sony_pf_add(); if (result) goto err_disable_device; result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group); if (result) goto err_remove_pf; return 0; err_remove_pf: sony_pf_remove(); err_disable_device: sony_pic_disable(device); err_free_irq: free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev); err_release_region: release_region(spic_dev.cur_ioport->io1.minimum, spic_dev.cur_ioport->io1.address_length); if (spic_dev.cur_ioport->io2.minimum) release_region(spic_dev.cur_ioport->io2.minimum, spic_dev.cur_ioport->io2.address_length); err_remove_compat: sonypi_compat_exit(); err_remove_input: sony_laptop_remove_input(); err_free_resources: list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) { list_del(&io->list); kfree(io); } list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) { list_del(&irq->list); kfree(irq); } spic_dev.cur_ioport = NULL; spic_dev.cur_irq = NULL; return result; } static int sony_pic_suspend(struct acpi_device *device, pm_message_t state) { if (sony_pic_disable(device)) return -ENXIO; return 0; } static int sony_pic_resume(struct acpi_device *device) { sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq); return 0; } static const struct acpi_device_id sony_pic_device_ids[] = { {SONY_PIC_HID, 0}, {"", 0}, }; static struct acpi_driver sony_pic_driver = { .name = SONY_PIC_DRIVER_NAME, .class = SONY_PIC_CLASS, .ids = sony_pic_device_ids, .owner = THIS_MODULE, .ops = { .add = sony_pic_add, .remove = sony_pic_remove, .suspend = sony_pic_suspend, .resume = sony_pic_resume, }, }; static struct dmi_system_id __initdata sonypi_dmi_table[] = { { .ident = "Sony Vaio", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"), }, }, { .ident = "Sony Vaio", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"), }, }, { } }; static int __init sony_laptop_init(void) { int result; if (!no_spic && dmi_check_system(sonypi_dmi_table)) { result = acpi_bus_register_driver(&sony_pic_driver); if (result) { printk(KERN_ERR DRV_PFX "Unable to register SPIC driver."); goto out; } } result = acpi_bus_register_driver(&sony_nc_driver); if (result) { printk(KERN_ERR DRV_PFX "Unable to register SNC driver."); goto out_unregister_pic; } return 0; out_unregister_pic: if (!no_spic) acpi_bus_unregister_driver(&sony_pic_driver); out: return result; } static void __exit sony_laptop_exit(void) { acpi_bus_unregister_driver(&sony_nc_driver); if (!no_spic) acpi_bus_unregister_driver(&sony_pic_driver); } module_init(sony_laptop_init); module_exit(sony_laptop_exit);