/* * Sony Programmable I/O Control Device driver for VAIO * * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net> * * Copyright (C) 2005 Narayanan R S <nars@kadamba.org> * * Copyright (C) 2001-2002 Alc�ve <www.alcove.com> * * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au> * * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp> * * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp> * * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com> * * 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 <linux/config.h> #include <linux/module.h> #include <linux/input.h> #include <linux/pci.h> #include <linux/sched.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/miscdevice.h> #include <linux/poll.h> #include <linux/delay.h> #include <linux/wait.h> #include <linux/acpi.h> #include <linux/dmi.h> #include <linux/err.h> #include <linux/kfifo.h> #include <asm/uaccess.h> #include <asm/io.h> #include <asm/system.h> #include <linux/sonypi.h> #define SONYPI_DRIVER_VERSION "1.26" MODULE_AUTHOR("Stelian Pop <stelian@popies.net>"); MODULE_DESCRIPTION("Sony Programmable I/O Control Device driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(SONYPI_DRIVER_VERSION); static int minor = -1; module_param(minor, int, 0); MODULE_PARM_DESC(minor, "minor number of the misc device, default is -1 (automatic)"); static int verbose; /* = 0 */ module_param(verbose, int, 0644); MODULE_PARM_DESC(verbose, "be verbose, default is 0 (no)"); static int fnkeyinit; /* = 0 */ module_param(fnkeyinit, int, 0444); MODULE_PARM_DESC(fnkeyinit, "set this if your Fn keys do not generate any event"); static int camera; /* = 0 */ module_param(camera, int, 0444); MODULE_PARM_DESC(camera, "set this if you have a MotionEye camera (PictureBook series)"); 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 useinput = 1; module_param(useinput, int, 0444); MODULE_PARM_DESC(useinput, "set this if you would like sonypi to feed events to the input subsystem"); #define SONYPI_DEVICE_MODEL_TYPE1 1 #define SONYPI_DEVICE_MODEL_TYPE2 2 /* type1 models use those */ #define SONYPI_IRQ_PORT 0x8034 #define SONYPI_IRQ_SHIFT 22 #define SONYPI_BASE 0x50 #define SONYPI_G10A (SONYPI_BASE+0x14) #define SONYPI_TYPE1_REGION_SIZE 0x08 #define SONYPI_TYPE1_EVTYPE_OFFSET 0x04 /* type2 series specifics */ #define SONYPI_SIRQ 0x9b #define SONYPI_SLOB 0x9c #define SONYPI_SHIB 0x9d #define SONYPI_TYPE2_REGION_SIZE 0x20 #define SONYPI_TYPE2_EVTYPE_OFFSET 0x12 /* battery / brightness 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 /* FAN0 information (reverse engineered from ACPI tables) */ #define SONYPI_FAN0_STATUS 0x93 #define SONYPI_TEMP_STATUS 0xC1 /* ioports used for brightness and type2 events */ #define SONYPI_DATA_IOPORT 0x62 #define SONYPI_CST_IOPORT 0x66 /* The set of possible ioports */ struct sonypi_ioport_list { u16 port1; u16 port2; }; static struct sonypi_ioport_list sonypi_type1_ioport_list[] = { { 0x10c0, 0x10c4 }, /* looks like the default on C1Vx */ { 0x1080, 0x1084 }, { 0x1090, 0x1094 }, { 0x10a0, 0x10a4 }, { 0x10b0, 0x10b4 }, { 0x0, 0x0 } }; static struct sonypi_ioport_list sonypi_type2_ioport_list[] = { { 0x1080, 0x1084 }, { 0x10a0, 0x10a4 }, { 0x10c0, 0x10c4 }, { 0x10e0, 0x10e4 }, { 0x0, 0x0 } }; /* The set of possible interrupts */ struct sonypi_irq_list { u16 irq; u16 bits; }; static struct sonypi_irq_list sonypi_type1_irq_list[] = { { 11, 0x2 }, /* IRQ 11, GO22=0,GO23=1 in AML */ { 10, 0x1 }, /* IRQ 10, GO22=1,GO23=0 in AML */ { 5, 0x0 }, /* IRQ 5, GO22=0,GO23=0 in AML */ { 0, 0x3 } /* no IRQ, GO22=1,GO23=1 in AML */ }; static struct sonypi_irq_list sonypi_type2_irq_list[] = { { 11, 0x80 }, /* IRQ 11, 0x80 in SIRQ in AML */ { 10, 0x40 }, /* IRQ 10, 0x40 in SIRQ in AML */ { 9, 0x20 }, /* IRQ 9, 0x20 in SIRQ in AML */ { 6, 0x10 }, /* IRQ 6, 0x10 in SIRQ in AML */ { 0, 0x00 } /* no IRQ, 0x00 in SIRQ in AML */ }; #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_PICTURE 5 #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 /* 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 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 }, { 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 }, { 0x5c, 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 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 }, { 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 } }; static struct sonypi_eventtypes { int model; u8 data; unsigned long mask; struct sonypi_event * events; } sonypi_eventtypes[] = { { SONYPI_DEVICE_MODEL_TYPE1, 0, 0xffffffff, sonypi_releaseev }, { SONYPI_DEVICE_MODEL_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev }, { SONYPI_DEVICE_MODEL_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev }, { SONYPI_DEVICE_MODEL_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev }, { SONYPI_DEVICE_MODEL_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev }, { SONYPI_DEVICE_MODEL_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev }, { SONYPI_DEVICE_MODEL_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev }, { SONYPI_DEVICE_MODEL_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev }, { SONYPI_DEVICE_MODEL_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev }, { SONYPI_DEVICE_MODEL_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev }, { SONYPI_DEVICE_MODEL_TYPE2, 0, 0xffffffff, sonypi_releaseev }, { SONYPI_DEVICE_MODEL_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev }, { SONYPI_DEVICE_MODEL_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev }, { SONYPI_DEVICE_MODEL_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev }, { SONYPI_DEVICE_MODEL_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev }, { SONYPI_DEVICE_MODEL_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev }, { SONYPI_DEVICE_MODEL_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev }, { SONYPI_DEVICE_MODEL_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev }, { SONYPI_DEVICE_MODEL_TYPE2, 0x08, SONYPI_HELP_MASK, sonypi_helpev }, { SONYPI_DEVICE_MODEL_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev }, { SONYPI_DEVICE_MODEL_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev }, { SONYPI_DEVICE_MODEL_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev }, { SONYPI_DEVICE_MODEL_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev }, { SONYPI_DEVICE_MODEL_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev }, { SONYPI_DEVICE_MODEL_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev }, { 0 } }; #define SONYPI_BUF_SIZE 128 /* The name of the devices for the input device drivers */ #define SONYPI_JOG_INPUTNAME "Sony Vaio Jogdial" #define SONYPI_KEY_INPUTNAME "Sony Vaio Keys" /* Correspondance table between sonypi events and input layer events */ static struct { int sonypiev; int inputev; } sonypi_inputkeys[] = { { SONYPI_EVENT_CAPTURE_PRESSED, KEY_CAMERA }, { SONYPI_EVENT_FNKEY_ONLY, KEY_FN }, { SONYPI_EVENT_FNKEY_ESC, KEY_FN_ESC }, { SONYPI_EVENT_FNKEY_F1, KEY_FN_F1 }, { SONYPI_EVENT_FNKEY_F2, KEY_FN_F2 }, { SONYPI_EVENT_FNKEY_F3, KEY_FN_F3 }, { SONYPI_EVENT_FNKEY_F4, KEY_FN_F4 }, { SONYPI_EVENT_FNKEY_F5, KEY_FN_F5 }, { SONYPI_EVENT_FNKEY_F6, KEY_FN_F6 }, { SONYPI_EVENT_FNKEY_F7, KEY_FN_F7 }, { SONYPI_EVENT_FNKEY_F8, KEY_FN_F8 }, { SONYPI_EVENT_FNKEY_F9, KEY_FN_F9 }, { SONYPI_EVENT_FNKEY_F10, KEY_FN_F10 }, { SONYPI_EVENT_FNKEY_F11, KEY_FN_F11 }, { SONYPI_EVENT_FNKEY_F12, KEY_FN_F12 }, { SONYPI_EVENT_FNKEY_1, KEY_FN_1 }, { SONYPI_EVENT_FNKEY_2, KEY_FN_2 }, { SONYPI_EVENT_FNKEY_D, KEY_FN_D }, { SONYPI_EVENT_FNKEY_E, KEY_FN_E }, { SONYPI_EVENT_FNKEY_F, KEY_FN_F }, { SONYPI_EVENT_FNKEY_S, KEY_FN_S }, { SONYPI_EVENT_FNKEY_B, KEY_FN_B }, { SONYPI_EVENT_BLUETOOTH_PRESSED, KEY_BLUE }, { SONYPI_EVENT_BLUETOOTH_ON, KEY_BLUE }, { SONYPI_EVENT_PKEY_P1, KEY_PROG1 }, { SONYPI_EVENT_PKEY_P2, KEY_PROG2 }, { SONYPI_EVENT_PKEY_P3, KEY_PROG3 }, { SONYPI_EVENT_BACK_PRESSED, KEY_BACK }, { SONYPI_EVENT_HELP_PRESSED, KEY_HELP }, { SONYPI_EVENT_ZOOM_PRESSED, KEY_ZOOM }, { SONYPI_EVENT_THUMBPHRASE_PRESSED, BTN_THUMB }, { 0, 0 }, }; struct sonypi_keypress { struct input_dev *dev; int key; }; static struct sonypi_device { struct pci_dev *dev; struct platform_device *pdev; u16 irq; u16 bits; u16 ioport1; u16 ioport2; u16 region_size; u16 evtype_offset; int camera_power; int bluetooth_power; struct semaphore lock; struct kfifo *fifo; spinlock_t fifo_lock; wait_queue_head_t fifo_proc_list; struct fasync_struct *fifo_async; int open_count; int model; struct input_dev input_jog_dev; struct input_dev input_key_dev; struct work_struct input_work; struct kfifo *input_fifo; spinlock_t input_fifo_lock; } sonypi_device; #define ITERATIONS_LONG 10000 #define ITERATIONS_SHORT 10 #define wait_on_command(quiet, command, iterations) { \ unsigned int n = iterations; \ while (--n && (command)) \ udelay(1); \ if (!n && (verbose || !quiet)) \ printk(KERN_WARNING "sonypi command failed at %s : %s (line %d)\n", __FILE__, __FUNCTION__, __LINE__); \ } #ifdef CONFIG_ACPI #define SONYPI_ACPI_ACTIVE (!acpi_disabled) #else #define SONYPI_ACPI_ACTIVE 0 #endif /* CONFIG_ACPI */ static int sonypi_ec_write(u8 addr, u8 value) { #ifdef CONFIG_ACPI_EC if (SONYPI_ACPI_ACTIVE) return ec_write(addr, value); #endif wait_on_command(1, inb_p(SONYPI_CST_IOPORT) & 3, ITERATIONS_LONG); outb_p(0x81, SONYPI_CST_IOPORT); wait_on_command(0, inb_p(SONYPI_CST_IOPORT) & 2, ITERATIONS_LONG); outb_p(addr, SONYPI_DATA_IOPORT); wait_on_command(0, inb_p(SONYPI_CST_IOPORT) & 2, ITERATIONS_LONG); outb_p(value, SONYPI_DATA_IOPORT); wait_on_command(0, inb_p(SONYPI_CST_IOPORT) & 2, ITERATIONS_LONG); return 0; } static int sonypi_ec_read(u8 addr, u8 *value) { #ifdef CONFIG_ACPI_EC if (SONYPI_ACPI_ACTIVE) return ec_read(addr, value); #endif wait_on_command(1, inb_p(SONYPI_CST_IOPORT) & 3, ITERATIONS_LONG); outb_p(0x80, SONYPI_CST_IOPORT); wait_on_command(0, inb_p(SONYPI_CST_IOPORT) & 2, ITERATIONS_LONG); outb_p(addr, SONYPI_DATA_IOPORT); wait_on_command(0, inb_p(SONYPI_CST_IOPORT) & 2, ITERATIONS_LONG); *value = inb_p(SONYPI_DATA_IOPORT); return 0; } static int ec_read16(u8 addr, u16 *value) { u8 val_lb, val_hb; if (sonypi_ec_read(addr, &val_lb)) return -1; if (sonypi_ec_read(addr + 1, &val_hb)) return -1; *value = val_lb | (val_hb << 8); return 0; } /* Initializes the device - this comes from the AML code in the ACPI bios */ static void sonypi_type1_srs(void) { u32 v; pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v); v = (v & 0xFFFF0000) | ((u32) sonypi_device.ioport1); pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v); pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v); v = (v & 0xFFF0FFFF) | (((u32) sonypi_device.ioport1 ^ sonypi_device.ioport2) << 16); pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v); v = inl(SONYPI_IRQ_PORT); v &= ~(((u32) 0x3) << SONYPI_IRQ_SHIFT); v |= (((u32) sonypi_device.bits) << SONYPI_IRQ_SHIFT); outl(v, SONYPI_IRQ_PORT); pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v); v = (v & 0xFF1FFFFF) | 0x00C00000; pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v); } static void sonypi_type2_srs(void) { if (sonypi_ec_write(SONYPI_SHIB, (sonypi_device.ioport1 & 0xFF00) >> 8)) printk(KERN_WARNING "ec_write failed\n"); if (sonypi_ec_write(SONYPI_SLOB, sonypi_device.ioport1 & 0x00FF)) printk(KERN_WARNING "ec_write failed\n"); if (sonypi_ec_write(SONYPI_SIRQ, sonypi_device.bits)) printk(KERN_WARNING "ec_write failed\n"); udelay(10); } /* Disables the device - this comes from the AML code in the ACPI bios */ static void sonypi_type1_dis(void) { u32 v; pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v); v = v & 0xFF3FFFFF; pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v); v = inl(SONYPI_IRQ_PORT); v |= (0x3 << SONYPI_IRQ_SHIFT); outl(v, SONYPI_IRQ_PORT); } static void sonypi_type2_dis(void) { if (sonypi_ec_write(SONYPI_SHIB, 0)) printk(KERN_WARNING "ec_write failed\n"); if (sonypi_ec_write(SONYPI_SLOB, 0)) printk(KERN_WARNING "ec_write failed\n"); if (sonypi_ec_write(SONYPI_SIRQ, 0)) printk(KERN_WARNING "ec_write failed\n"); } static u8 sonypi_call1(u8 dev) { u8 v1, v2; wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG); outb(dev, sonypi_device.ioport2); v1 = inb_p(sonypi_device.ioport2); v2 = inb_p(sonypi_device.ioport1); return v2; } static u8 sonypi_call2(u8 dev, u8 fn) { u8 v1; wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG); outb(dev, sonypi_device.ioport2); wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG); outb(fn, sonypi_device.ioport1); v1 = inb_p(sonypi_device.ioport1); return v1; } static u8 sonypi_call3(u8 dev, u8 fn, u8 v) { u8 v1; wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG); outb(dev, sonypi_device.ioport2); wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG); outb(fn, sonypi_device.ioport1); wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG); outb(v, sonypi_device.ioport1); v1 = inb_p(sonypi_device.ioport1); return v1; } #if 0 /* Get brightness, hue etc. Unreliable... */ static u8 sonypi_read(u8 fn) { u8 v1, v2; int n = 100; while (n--) { v1 = sonypi_call2(0x8f, fn); v2 = sonypi_call2(0x8f, fn); if (v1 == v2 && v1 != 0xff) return v1; } return 0xff; } #endif /* Set brightness, hue etc */ static void sonypi_set(u8 fn, u8 v) { wait_on_command(0, sonypi_call3(0x90, fn, v), ITERATIONS_SHORT); } /* Tests if the camera is ready */ static int sonypi_camera_ready(void) { u8 v; v = sonypi_call2(0x8f, SONYPI_CAMERA_STATUS); return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY)); } /* Turns the camera off */ static void sonypi_camera_off(void) { sonypi_set(SONYPI_CAMERA_PICTURE, SONYPI_CAMERA_MUTE_MASK); if (!sonypi_device.camera_power) return; sonypi_call2(0x91, 0); sonypi_device.camera_power = 0; } /* Turns the camera on */ static void sonypi_camera_on(void) { int i, j; if (sonypi_device.camera_power) return; for (j = 5; j > 0; j--) { while (sonypi_call2(0x91, 0x1)) msleep(10); sonypi_call1(0x93); for (i = 400; i > 0; i--) { if (sonypi_camera_ready()) break; msleep(10); } if (i) break; } if (j == 0) { printk(KERN_WARNING "sonypi: failed to power on camera\n"); return; } sonypi_set(0x10, 0x5a); sonypi_device.camera_power = 1; } /* sets the bluetooth subsystem power state */ static void sonypi_setbluetoothpower(u8 state) { state = !!state; if (sonypi_device.bluetooth_power == state) return; sonypi_call2(0x96, state); sonypi_call1(0x82); sonypi_device.bluetooth_power = state; } static void input_keyrelease(void *data) { struct sonypi_keypress kp; while (kfifo_get(sonypi_device.input_fifo, (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) { msleep(10); input_report_key(kp.dev, kp.key, 0); input_sync(kp.dev); } } static void sonypi_report_input_event(u8 event) { struct input_dev *jog_dev = &sonypi_device.input_jog_dev; struct input_dev *key_dev = &sonypi_device.input_key_dev; struct sonypi_keypress kp = { NULL }; int i; switch (event) { case SONYPI_EVENT_JOGDIAL_UP: case SONYPI_EVENT_JOGDIAL_UP_PRESSED: input_report_rel(jog_dev, REL_WHEEL, 1); input_sync(jog_dev); break; case SONYPI_EVENT_JOGDIAL_DOWN: case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED: input_report_rel(jog_dev, REL_WHEEL, -1); input_sync(jog_dev); break; case SONYPI_EVENT_JOGDIAL_PRESSED: kp.key = BTN_MIDDLE; kp.dev = jog_dev; break; case SONYPI_EVENT_FNKEY_RELEASED: /* Nothing, not all VAIOs generate this event */ break; default: for (i = 0; sonypi_inputkeys[i].sonypiev; i++) if (event == sonypi_inputkeys[i].sonypiev) { kp.dev = key_dev; kp.key = sonypi_inputkeys[i].inputev; break; } break; } if (kp.dev) { input_report_key(kp.dev, kp.key, 1); input_sync(kp.dev); kfifo_put(sonypi_device.input_fifo, (unsigned char *)&kp, sizeof(kp)); schedule_work(&sonypi_device.input_work); } } /* Interrupt handler: some event is available */ static irqreturn_t sonypi_irq(int irq, void *dev_id, struct pt_regs *regs) { u8 v1, v2, event = 0; int i, j; v1 = inb_p(sonypi_device.ioport1); v2 = inb_p(sonypi_device.ioport1 + sonypi_device.evtype_offset); for (i = 0; sonypi_eventtypes[i].model; i++) { if (sonypi_device.model != sonypi_eventtypes[i].model) continue; if ((v2 & sonypi_eventtypes[i].data) != sonypi_eventtypes[i].data) continue; if (!(mask & sonypi_eventtypes[i].mask)) continue; for (j = 0; sonypi_eventtypes[i].events[j].event; j++) { if (v1 == sonypi_eventtypes[i].events[j].data) { event = sonypi_eventtypes[i].events[j].event; goto found; } } } if (verbose) printk(KERN_WARNING "sonypi: unknown event port1=0x%02x,port2=0x%02x\n", v1, v2); /* We need to return IRQ_HANDLED here because there *are* * events belonging to the sonypi device we don't know about, * but we still don't want those to pollute the logs... */ return IRQ_HANDLED; found: if (verbose > 1) printk(KERN_INFO "sonypi: event port1=0x%02x,port2=0x%02x\n", v1, v2); if (useinput) sonypi_report_input_event(event); kfifo_put(sonypi_device.fifo, (unsigned char *)&event, sizeof(event)); kill_fasync(&sonypi_device.fifo_async, SIGIO, POLL_IN); wake_up_interruptible(&sonypi_device.fifo_proc_list); return IRQ_HANDLED; } /* External camera command (exported to the motion eye v4l driver) */ int sonypi_camera_command(int command, u8 value) { if (!camera) return -EIO; down(&sonypi_device.lock); switch (command) { case SONYPI_COMMAND_SETCAMERA: if (value) sonypi_camera_on(); else sonypi_camera_off(); break; case SONYPI_COMMAND_SETCAMERABRIGHTNESS: sonypi_set(SONYPI_CAMERA_BRIGHTNESS, value); break; case SONYPI_COMMAND_SETCAMERACONTRAST: sonypi_set(SONYPI_CAMERA_CONTRAST, value); break; case SONYPI_COMMAND_SETCAMERAHUE: sonypi_set(SONYPI_CAMERA_HUE, value); break; case SONYPI_COMMAND_SETCAMERACOLOR: sonypi_set(SONYPI_CAMERA_COLOR, value); break; case SONYPI_COMMAND_SETCAMERASHARPNESS: sonypi_set(SONYPI_CAMERA_SHARPNESS, value); break; case SONYPI_COMMAND_SETCAMERAPICTURE: sonypi_set(SONYPI_CAMERA_PICTURE, value); break; case SONYPI_COMMAND_SETCAMERAAGC: sonypi_set(SONYPI_CAMERA_AGC, value); break; default: printk(KERN_ERR "sonypi: sonypi_camera_command invalid: %d\n", command); break; } up(&sonypi_device.lock); return 0; } EXPORT_SYMBOL(sonypi_camera_command); static int sonypi_misc_fasync(int fd, struct file *filp, int on) { int retval; retval = fasync_helper(fd, filp, on, &sonypi_device.fifo_async); if (retval < 0) return retval; return 0; } static int sonypi_misc_release(struct inode *inode, struct file *file) { sonypi_misc_fasync(-1, file, 0); down(&sonypi_device.lock); sonypi_device.open_count--; up(&sonypi_device.lock); return 0; } static int sonypi_misc_open(struct inode *inode, struct file *file) { down(&sonypi_device.lock); /* Flush input queue on first open */ if (!sonypi_device.open_count) kfifo_reset(sonypi_device.fifo); sonypi_device.open_count++; up(&sonypi_device.lock); 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_device.fifo) == 0) && (file->f_flags & O_NONBLOCK)) return -EAGAIN; ret = wait_event_interruptible(sonypi_device.fifo_proc_list, kfifo_len(sonypi_device.fifo) != 0); if (ret) return ret; while (ret < count && (kfifo_get(sonypi_device.fifo, &c, sizeof(c)) == sizeof(c))) { if (put_user(c, buf++)) return -EFAULT; ret++; } if (ret > 0) { struct inode *inode = file->f_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_device.fifo_proc_list, wait); if (kfifo_len(sonypi_device.fifo)) return POLLIN | POLLRDNORM; return 0; } static int sonypi_misc_ioctl(struct inode *ip, struct file *fp, unsigned int cmd, unsigned long arg) { int ret = 0; void __user *argp = (void __user *)arg; u8 val8; u16 val16; down(&sonypi_device.lock); switch (cmd) { case SONYPI_IOCGBRT: if (sonypi_ec_read(SONYPI_LCD_LIGHT, &val8)) { ret = -EIO; break; } if (copy_to_user(argp, &val8, sizeof(val8))) ret = -EFAULT; break; case SONYPI_IOCSBRT: if (copy_from_user(&val8, argp, sizeof(val8))) { ret = -EFAULT; break; } if (sonypi_ec_write(SONYPI_LCD_LIGHT, val8)) ret = -EIO; 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 (sonypi_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 = sonypi_device.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; } sonypi_setbluetoothpower(val8); break; /* FAN Controls */ case SONYPI_IOCGFAN: if (sonypi_ec_read(SONYPI_FAN0_STATUS, &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 (sonypi_ec_write(SONYPI_FAN0_STATUS, val8)) ret = -EIO; break; /* GET Temperature (useful under APM) */ case SONYPI_IOCGTEMP: if (sonypi_ec_read(SONYPI_TEMP_STATUS, &val8)) { ret = -EIO; break; } if (copy_to_user(argp, &val8, sizeof(val8))) ret = -EFAULT; break; default: ret = -EINVAL; } up(&sonypi_device.lock); return ret; } static 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, .ioctl = sonypi_misc_ioctl, }; static struct miscdevice sonypi_misc_device = { .minor = MISC_DYNAMIC_MINOR, .name = "sonypi", .fops = &sonypi_misc_fops, }; static void sonypi_enable(unsigned int camera_on) { if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2) sonypi_type2_srs(); else sonypi_type1_srs(); sonypi_call1(0x82); sonypi_call2(0x81, 0xff); sonypi_call1(compat ? 0x92 : 0x82); /* Enable ACPI mode to get Fn key events */ if (!SONYPI_ACPI_ACTIVE && fnkeyinit) outb(0xf0, 0xb2); if (camera && camera_on) sonypi_camera_on(); } static int sonypi_disable(void) { sonypi_call2(0x81, 0); /* make sure we don't get any more events */ if (camera) sonypi_camera_off(); /* disable ACPI mode */ if (!SONYPI_ACPI_ACTIVE && fnkeyinit) outb(0xf1, 0xb2); if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2) sonypi_type2_dis(); else sonypi_type1_dis(); return 0; } #ifdef CONFIG_PM static int old_camera_power; static int sonypi_suspend(struct device *dev, pm_message_t state, u32 level) { if (level == SUSPEND_DISABLE) { old_camera_power = sonypi_device.camera_power; sonypi_disable(); } return 0; } static int sonypi_resume(struct device *dev, u32 level) { if (level == RESUME_ENABLE) sonypi_enable(old_camera_power); return 0; } #endif static void sonypi_shutdown(struct device *dev) { sonypi_disable(); } static struct device_driver sonypi_driver = { .name = "sonypi", .bus = &platform_bus_type, #ifdef CONFIG_PM .suspend = sonypi_suspend, .resume = sonypi_resume, #endif .shutdown = sonypi_shutdown, }; static int __devinit sonypi_probe(void) { int i, ret; struct sonypi_ioport_list *ioport_list; struct sonypi_irq_list *irq_list; struct pci_dev *pcidev; pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, NULL); sonypi_device.dev = pcidev; sonypi_device.model = pcidev ? SONYPI_DEVICE_MODEL_TYPE1 : SONYPI_DEVICE_MODEL_TYPE2; spin_lock_init(&sonypi_device.fifo_lock); sonypi_device.fifo = kfifo_alloc(SONYPI_BUF_SIZE, GFP_KERNEL, &sonypi_device.fifo_lock); if (IS_ERR(sonypi_device.fifo)) { printk(KERN_ERR "sonypi: kfifo_alloc failed\n"); ret = PTR_ERR(sonypi_device.fifo); goto out_fifo; } init_waitqueue_head(&sonypi_device.fifo_proc_list); init_MUTEX(&sonypi_device.lock); sonypi_device.bluetooth_power = -1; if (pcidev && pci_enable_device(pcidev)) { printk(KERN_ERR "sonypi: pci_enable_device failed\n"); ret = -EIO; goto out_pcienable; } if (minor != -1) sonypi_misc_device.minor = minor; if ((ret = misc_register(&sonypi_misc_device))) { printk(KERN_ERR "sonypi: misc_register failed\n"); goto out_miscreg; } if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2) { ioport_list = sonypi_type2_ioport_list; sonypi_device.region_size = SONYPI_TYPE2_REGION_SIZE; sonypi_device.evtype_offset = SONYPI_TYPE2_EVTYPE_OFFSET; irq_list = sonypi_type2_irq_list; } else { ioport_list = sonypi_type1_ioport_list; sonypi_device.region_size = SONYPI_TYPE1_REGION_SIZE; sonypi_device.evtype_offset = SONYPI_TYPE1_EVTYPE_OFFSET; irq_list = sonypi_type1_irq_list; } for (i = 0; ioport_list[i].port1; i++) { if (request_region(ioport_list[i].port1, sonypi_device.region_size, "Sony Programable I/O Device")) { /* get the ioport */ sonypi_device.ioport1 = ioport_list[i].port1; sonypi_device.ioport2 = ioport_list[i].port2; break; } } if (!sonypi_device.ioport1) { printk(KERN_ERR "sonypi: request_region failed\n"); ret = -ENODEV; goto out_reqreg; } for (i = 0; irq_list[i].irq; i++) { sonypi_device.irq = irq_list[i].irq; sonypi_device.bits = irq_list[i].bits; if (!request_irq(sonypi_device.irq, sonypi_irq, SA_SHIRQ, "sonypi", sonypi_irq)) break; } if (!irq_list[i].irq) { printk(KERN_ERR "sonypi: request_irq failed\n"); ret = -ENODEV; goto out_reqirq; } if (useinput) { /* Initialize the Input Drivers: jogdial */ int i; sonypi_device.input_jog_dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REL); sonypi_device.input_jog_dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_MIDDLE); sonypi_device.input_jog_dev.relbit[0] = BIT(REL_WHEEL); sonypi_device.input_jog_dev.name = SONYPI_JOG_INPUTNAME; sonypi_device.input_jog_dev.id.bustype = BUS_ISA; sonypi_device.input_jog_dev.id.vendor = PCI_VENDOR_ID_SONY; input_register_device(&sonypi_device.input_jog_dev); printk(KERN_INFO "%s input method installed.\n", sonypi_device.input_jog_dev.name); /* Initialize the Input Drivers: special keys */ sonypi_device.input_key_dev.evbit[0] = BIT(EV_KEY); for (i = 0; sonypi_inputkeys[i].sonypiev; i++) if (sonypi_inputkeys[i].inputev) set_bit(sonypi_inputkeys[i].inputev, sonypi_device.input_key_dev.keybit); sonypi_device.input_key_dev.name = SONYPI_KEY_INPUTNAME; sonypi_device.input_key_dev.id.bustype = BUS_ISA; sonypi_device.input_key_dev.id.vendor = PCI_VENDOR_ID_SONY; input_register_device(&sonypi_device.input_key_dev); printk(KERN_INFO "%s input method installed.\n", sonypi_device.input_key_dev.name); spin_lock_init(&sonypi_device.input_fifo_lock); sonypi_device.input_fifo = kfifo_alloc(SONYPI_BUF_SIZE, GFP_KERNEL, &sonypi_device.input_fifo_lock); if (IS_ERR(sonypi_device.input_fifo)) { printk(KERN_ERR "sonypi: kfifo_alloc failed\n"); ret = PTR_ERR(sonypi_device.input_fifo); goto out_infifo; } INIT_WORK(&sonypi_device.input_work, input_keyrelease, NULL); } sonypi_device.pdev = platform_device_register_simple("sonypi", -1, NULL, 0); if (IS_ERR(sonypi_device.pdev)) { ret = PTR_ERR(sonypi_device.pdev); goto out_platformdev; } sonypi_enable(0); printk(KERN_INFO "sonypi: Sony Programmable I/O Controller Driver" "v%s.\n", SONYPI_DRIVER_VERSION); printk(KERN_INFO "sonypi: detected %s model, " "verbose = %d, fnkeyinit = %s, camera = %s, " "compat = %s, mask = 0x%08lx, useinput = %s, acpi = %s\n", (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE1) ? "type1" : "type2", verbose, fnkeyinit ? "on" : "off", camera ? "on" : "off", compat ? "on" : "off", mask, useinput ? "on" : "off", SONYPI_ACPI_ACTIVE ? "on" : "off"); printk(KERN_INFO "sonypi: enabled at irq=%d, port1=0x%x, port2=0x%x\n", sonypi_device.irq, sonypi_device.ioport1, sonypi_device.ioport2); if (minor == -1) printk(KERN_INFO "sonypi: device allocated minor is %d\n", sonypi_misc_device.minor); return 0; out_platformdev: kfifo_free(sonypi_device.input_fifo); out_infifo: input_unregister_device(&sonypi_device.input_key_dev); input_unregister_device(&sonypi_device.input_jog_dev); free_irq(sonypi_device.irq, sonypi_irq); out_reqirq: release_region(sonypi_device.ioport1, sonypi_device.region_size); out_reqreg: misc_deregister(&sonypi_misc_device); out_miscreg: if (pcidev) pci_disable_device(pcidev); out_pcienable: kfifo_free(sonypi_device.fifo); out_fifo: pci_dev_put(sonypi_device.dev); return ret; } static void __devexit sonypi_remove(void) { sonypi_disable(); synchronize_sched(); /* Allow sonypi interrupt to complete. */ flush_scheduled_work(); platform_device_unregister(sonypi_device.pdev); if (useinput) { input_unregister_device(&sonypi_device.input_key_dev); input_unregister_device(&sonypi_device.input_jog_dev); kfifo_free(sonypi_device.input_fifo); } free_irq(sonypi_device.irq, sonypi_irq); release_region(sonypi_device.ioport1, sonypi_device.region_size); misc_deregister(&sonypi_misc_device); if (sonypi_device.dev) pci_disable_device(sonypi_device.dev); kfifo_free(sonypi_device.fifo); pci_dev_put(sonypi_device.dev); printk(KERN_INFO "sonypi: removed.\n"); } 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 sonypi_init(void) { int ret; if (!dmi_check_system(sonypi_dmi_table)) return -ENODEV; ret = driver_register(&sonypi_driver); if (ret) return ret; ret = sonypi_probe(); if (ret) driver_unregister(&sonypi_driver); return ret; } static void __exit sonypi_exit(void) { driver_unregister(&sonypi_driver); sonypi_remove(); } module_init(sonypi_init); module_exit(sonypi_exit);