diff options
Diffstat (limited to 'drivers/platform/x86/toshiba_acpi.c')
| -rw-r--r-- | drivers/platform/x86/toshiba_acpi.c | 863 |
1 files changed, 863 insertions, 0 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c new file mode 100644 index 0000000..40e60fc --- /dev/null +++ b/drivers/platform/x86/toshiba_acpi.c @@ -0,0 +1,863 @@ +/* + * toshiba_acpi.c - Toshiba Laptop ACPI Extras + * + * + * Copyright (C) 2002-2004 John Belmonte + * Copyright (C) 2008 Philip Langdale + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * + * The devolpment page for this driver is located at + * http://memebeam.org/toys/ToshibaAcpiDriver. + * + * Credits: + * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse + * engineering the Windows drivers + * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5 + * Rob Miller - TV out and hotkeys help + * + * + * TODO + * + */ + +#define TOSHIBA_ACPI_VERSION "0.19" +#define PROC_INTERFACE_VERSION 1 + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/proc_fs.h> +#include <linux/backlight.h> +#include <linux/platform_device.h> +#include <linux/rfkill.h> +#include <linux/input-polldev.h> + +#include <asm/uaccess.h> + +#include <acpi/acpi_drivers.h> + +MODULE_AUTHOR("John Belmonte"); +MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver"); +MODULE_LICENSE("GPL"); + +#define MY_LOGPREFIX "toshiba_acpi: " +#define MY_ERR KERN_ERR MY_LOGPREFIX +#define MY_NOTICE KERN_NOTICE MY_LOGPREFIX +#define MY_INFO KERN_INFO MY_LOGPREFIX + +/* Toshiba ACPI method paths */ +#define METHOD_LCD_BRIGHTNESS "\\_SB_.PCI0.VGA_.LCD_._BCM" +#define METHOD_HCI_1 "\\_SB_.VALD.GHCI" +#define METHOD_HCI_2 "\\_SB_.VALZ.GHCI" +#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX" + +/* Toshiba HCI interface definitions + * + * HCI is Toshiba's "Hardware Control Interface" which is supposed to + * be uniform across all their models. Ideally we would just call + * dedicated ACPI methods instead of using this primitive interface. + * However the ACPI methods seem to be incomplete in some areas (for + * example they allow setting, but not reading, the LCD brightness value), + * so this is still useful. + */ + +#define HCI_WORDS 6 + +/* operations */ +#define HCI_SET 0xff00 +#define HCI_GET 0xfe00 + +/* return codes */ +#define HCI_SUCCESS 0x0000 +#define HCI_FAILURE 0x1000 +#define HCI_NOT_SUPPORTED 0x8000 +#define HCI_EMPTY 0x8c00 + +/* registers */ +#define HCI_FAN 0x0004 +#define HCI_SYSTEM_EVENT 0x0016 +#define HCI_VIDEO_OUT 0x001c +#define HCI_HOTKEY_EVENT 0x001e +#define HCI_LCD_BRIGHTNESS 0x002a +#define HCI_WIRELESS 0x0056 + +/* field definitions */ +#define HCI_LCD_BRIGHTNESS_BITS 3 +#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS) +#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS) +#define HCI_VIDEO_OUT_LCD 0x1 +#define HCI_VIDEO_OUT_CRT 0x2 +#define HCI_VIDEO_OUT_TV 0x4 +#define HCI_WIRELESS_KILL_SWITCH 0x01 +#define HCI_WIRELESS_BT_PRESENT 0x0f +#define HCI_WIRELESS_BT_ATTACH 0x40 +#define HCI_WIRELESS_BT_POWER 0x80 + +static const struct acpi_device_id toshiba_device_ids[] = { + {"TOS6200", 0}, + {"TOS6208", 0}, + {"TOS1900", 0}, + {"", 0}, +}; +MODULE_DEVICE_TABLE(acpi, toshiba_device_ids); + +/* utility + */ + +static __inline__ void _set_bit(u32 * word, u32 mask, int value) +{ + *word = (*word & ~mask) | (mask * value); +} + +/* acpi interface wrappers + */ + +static int is_valid_acpi_path(const char *methodName) +{ + acpi_handle handle; + acpi_status status; + + status = acpi_get_handle(NULL, (char *)methodName, &handle); + return !ACPI_FAILURE(status); +} + +static int write_acpi_int(const char *methodName, int val) +{ + struct acpi_object_list params; + union acpi_object in_objs[1]; + acpi_status status; + + params.count = ARRAY_SIZE(in_objs); + params.pointer = in_objs; + in_objs[0].type = ACPI_TYPE_INTEGER; + in_objs[0].integer.value = val; + + status = acpi_evaluate_object(NULL, (char *)methodName, ¶ms, NULL); + return (status == AE_OK); +} + +#if 0 +static int read_acpi_int(const char *methodName, int *pVal) +{ + struct acpi_buffer results; + union acpi_object out_objs[1]; + acpi_status status; + + results.length = sizeof(out_objs); + results.pointer = out_objs; + + status = acpi_evaluate_object(0, (char *)methodName, 0, &results); + *pVal = out_objs[0].integer.value; + + return (status == AE_OK) && (out_objs[0].type == ACPI_TYPE_INTEGER); +} +#endif + +static const char *method_hci /*= 0*/ ; + +/* Perform a raw HCI call. Here we don't care about input or output buffer + * format. + */ +static acpi_status hci_raw(const u32 in[HCI_WORDS], u32 out[HCI_WORDS]) +{ + struct acpi_object_list params; + union acpi_object in_objs[HCI_WORDS]; + struct acpi_buffer results; + union acpi_object out_objs[HCI_WORDS + 1]; + acpi_status status; + int i; + + params.count = HCI_WORDS; + params.pointer = in_objs; + for (i = 0; i < HCI_WORDS; ++i) { + in_objs[i].type = ACPI_TYPE_INTEGER; + in_objs[i].integer.value = in[i]; + } + + results.length = sizeof(out_objs); + results.pointer = out_objs; + + status = acpi_evaluate_object(NULL, (char *)method_hci, ¶ms, + &results); + if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) { + for (i = 0; i < out_objs->package.count; ++i) { + out[i] = out_objs->package.elements[i].integer.value; + } + } + + return status; +} + +/* common hci tasks (get or set one or two value) + * + * In addition to the ACPI status, the HCI system returns a result which + * may be useful (such as "not supported"). + */ + +static acpi_status hci_write1(u32 reg, u32 in1, u32 * result) +{ + u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 }; + u32 out[HCI_WORDS]; + acpi_status status = hci_raw(in, out); + *result = (status == AE_OK) ? out[0] : HCI_FAILURE; + return status; +} + +static acpi_status hci_read1(u32 reg, u32 * out1, u32 * result) +{ + u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 }; + u32 out[HCI_WORDS]; + acpi_status status = hci_raw(in, out); + *out1 = out[2]; + *result = (status == AE_OK) ? out[0] : HCI_FAILURE; + return status; +} + +static acpi_status hci_write2(u32 reg, u32 in1, u32 in2, u32 *result) +{ + u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 }; + u32 out[HCI_WORDS]; + acpi_status status = hci_raw(in, out); + *result = (status == AE_OK) ? out[0] : HCI_FAILURE; + return status; +} + +static acpi_status hci_read2(u32 reg, u32 *out1, u32 *out2, u32 *result) +{ + u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 }; + u32 out[HCI_WORDS]; + acpi_status status = hci_raw(in, out); + *out1 = out[2]; + *out2 = out[3]; + *result = (status == AE_OK) ? out[0] : HCI_FAILURE; + return status; +} + +struct toshiba_acpi_dev { + struct platform_device *p_dev; + struct rfkill *rfk_dev; + struct input_polled_dev *poll_dev; + + const char *bt_name; + const char *rfk_name; + + bool last_rfk_state; + + struct mutex mutex; +}; + +static struct toshiba_acpi_dev toshiba_acpi = { + .bt_name = "Toshiba Bluetooth", + .rfk_name = "Toshiba RFKill Switch", + .last_rfk_state = false, +}; + +/* Bluetooth rfkill handlers */ + +static u32 hci_get_bt_present(bool *present) +{ + u32 hci_result; + u32 value, value2; + + value = 0; + value2 = 0; + hci_read2(HCI_WIRELESS, &value, &value2, &hci_result); + if (hci_result == HCI_SUCCESS) + *present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false; + + return hci_result; +} + +static u32 hci_get_bt_on(bool *on) +{ + u32 hci_result; + u32 value, value2; + + value = 0; + value2 = 0x0001; + hci_read2(HCI_WIRELESS, &value, &value2, &hci_result); + if (hci_result == HCI_SUCCESS) + *on = (value & HCI_WIRELESS_BT_POWER) && + (value & HCI_WIRELESS_BT_ATTACH); + + return hci_result; +} + +static u32 hci_get_radio_state(bool *radio_state) +{ + u32 hci_result; + u32 value, value2; + + value = 0; + value2 = 0x0001; + hci_read2(HCI_WIRELESS, &value, &value2, &hci_result); + + *radio_state = value & HCI_WIRELESS_KILL_SWITCH; + return hci_result; +} + +static int bt_rfkill_toggle_radio(void *data, enum rfkill_state state) +{ + u32 result1, result2; + u32 value; + bool radio_state; + struct toshiba_acpi_dev *dev = data; + + value = (state == RFKILL_STATE_UNBLOCKED); + + if (hci_get_radio_state(&radio_state) != HCI_SUCCESS) + return -EFAULT; + + switch (state) { + case RFKILL_STATE_UNBLOCKED: + if (!radio_state) + return -EPERM; + break; + case RFKILL_STATE_SOFT_BLOCKED: + break; + default: + return -EINVAL; + } + + mutex_lock(&dev->mutex); + hci_write2(HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER, &result1); + hci_write2(HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH, &result2); + mutex_unlock(&dev->mutex); + + if (result1 != HCI_SUCCESS || result2 != HCI_SUCCESS) + return -EFAULT; + + return 0; +} + +static void bt_poll_rfkill(struct input_polled_dev *poll_dev) +{ + bool state_changed; + bool new_rfk_state; + bool value; + u32 hci_result; + struct toshiba_acpi_dev *dev = poll_dev->private; + + hci_result = hci_get_radio_state(&value); + if (hci_result != HCI_SUCCESS) + return; /* Can't do anything useful */ + + new_rfk_state = value; + + mutex_lock(&dev->mutex); + state_changed = new_rfk_state != dev->last_rfk_state; + dev->last_rfk_state = new_rfk_state; + mutex_unlock(&dev->mutex); + + if (unlikely(state_changed)) { + rfkill_force_state(dev->rfk_dev, + new_rfk_state ? + RFKILL_STATE_SOFT_BLOCKED : + RFKILL_STATE_HARD_BLOCKED); + input_report_switch(poll_dev->input, SW_RFKILL_ALL, + new_rfk_state); + input_sync(poll_dev->input); + } +} + +static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ; +static struct backlight_device *toshiba_backlight_device; +static int force_fan; +static int last_key_event; +static int key_event_valid; + +typedef struct _ProcItem { + const char *name; + char *(*read_func) (char *); + unsigned long (*write_func) (const char *, unsigned long); +} ProcItem; + +/* proc file handlers + */ + +static int +dispatch_read(char *page, char **start, off_t off, int count, int *eof, + ProcItem * item) +{ + char *p = page; + int len; + + if (off == 0) + p = item->read_func(p); + + /* ISSUE: I don't understand this code */ + len = (p - page); + if (len <= off + count) + *eof = 1; + *start = page + off; + len -= off; + if (len > count) + len = count; + if (len < 0) + len = 0; + return len; +} + +static int +dispatch_write(struct file *file, const char __user * buffer, + unsigned long count, ProcItem * item) +{ + int result; + char *tmp_buffer; + + /* Arg buffer points to userspace memory, which can't be accessed + * directly. Since we're making a copy, zero-terminate the + * destination so that sscanf can be used on it safely. + */ + tmp_buffer = kmalloc(count + 1, GFP_KERNEL); + if (!tmp_buffer) + return -ENOMEM; + + if (copy_from_user(tmp_buffer, buffer, count)) { + result = -EFAULT; + } else { + tmp_buffer[count] = 0; + result = item->write_func(tmp_buffer, count); + } + kfree(tmp_buffer); + return result; +} + +static int get_lcd(struct backlight_device *bd) +{ + u32 hci_result; + u32 value; + + hci_read1(HCI_LCD_BRIGHTNESS, &value, &hci_result); + if (hci_result == HCI_SUCCESS) { + return (value >> HCI_LCD_BRIGHTNESS_SHIFT); + } else + return -EFAULT; +} + +static char *read_lcd(char *p) +{ + int value = get_lcd(NULL); + + if (value >= 0) { + p += sprintf(p, "brightness: %d\n", value); + p += sprintf(p, "brightness_levels: %d\n", + HCI_LCD_BRIGHTNESS_LEVELS); + } else { + printk(MY_ERR "Error reading LCD brightness\n"); + } + + return p; +} + +static int set_lcd(int value) +{ + u32 hci_result; + + value = value << HCI_LCD_BRIGHTNESS_SHIFT; + hci_write1(HCI_LCD_BRIGHTNESS, value, &hci_result); + if (hci_result != HCI_SUCCESS) + return -EFAULT; + + return 0; +} + +static int set_lcd_status(struct backlight_device *bd) +{ + return set_lcd(bd->props.brightness); +} + +static unsigned long write_lcd(const char *buffer, unsigned long count) +{ + int value; + int ret; + + if (sscanf(buffer, " brightness : %i", &value) == 1 && + value >= 0 && value < HCI_LCD_BRIGHTNESS_LEVELS) { + ret = set_lcd(value); + if (ret == 0) + ret = count; + } else { + ret = -EINVAL; + } + return ret; +} + +static char *read_video(char *p) +{ + u32 hci_result; + u32 value; + + hci_read1(HCI_VIDEO_OUT, &value, &hci_result); + if (hci_result == HCI_SUCCESS) { + int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0; + int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0; + int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0; + p += sprintf(p, "lcd_out: %d\n", is_lcd); + p += sprintf(p, "crt_out: %d\n", is_crt); + p += sprintf(p, "tv_out: %d\n", is_tv); + } else { + printk(MY_ERR "Error reading video out status\n"); + } + + return p; +} + +static unsigned long write_video(const char *buffer, unsigned long count) +{ + int value; + int remain = count; + int lcd_out = -1; + int crt_out = -1; + int tv_out = -1; + u32 hci_result; + u32 video_out; + + /* scan expression. Multiple expressions may be delimited with ; + * + * NOTE: to keep scanning simple, invalid fields are ignored + */ + while (remain) { + if (sscanf(buffer, " lcd_out : %i", &value) == 1) + lcd_out = value & 1; + else if (sscanf(buffer, " crt_out : %i", &value) == 1) + crt_out = value & 1; + else if (sscanf(buffer, " tv_out : %i", &value) == 1) + tv_out = value & 1; + /* advance to one character past the next ; */ + do { + ++buffer; + --remain; + } + while (remain && *(buffer - 1) != ';'); + } + + hci_read1(HCI_VIDEO_OUT, &video_out, &hci_result); + if (hci_result == HCI_SUCCESS) { + unsigned int new_video_out = video_out; + if (lcd_out != -1) + _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out); + if (crt_out != -1) + _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out); + if (tv_out != -1) + _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out); + /* To avoid unnecessary video disruption, only write the new + * video setting if something changed. */ + if (new_video_out != video_out) + write_acpi_int(METHOD_VIDEO_OUT, new_video_out); + } else { + return -EFAULT; + } + + return count; +} + +static char *read_fan(char *p) +{ + u32 hci_result; + u32 value; + + hci_read1(HCI_FAN, &value, &hci_result); + if (hci_result == HCI_SUCCESS) { + p += sprintf(p, "running: %d\n", (value > 0)); + p += sprintf(p, "force_on: %d\n", force_fan); + } else { + printk(MY_ERR "Error reading fan status\n"); + } + + return p; +} + +static unsigned long write_fan(const char *buffer, unsigned long count) +{ + int value; + u32 hci_result; + + if (sscanf(buffer, " force_on : %i", &value) == 1 && + value >= 0 && value <= 1) { + hci_write1(HCI_FAN, value, &hci_result); + if (hci_result != HCI_SUCCESS) + return -EFAULT; + else + force_fan = value; + } else { + return -EINVAL; + } + + return count; +} + +static char *read_keys(char *p) +{ + u32 hci_result; + u32 value; + + if (!key_event_valid) { + hci_read1(HCI_SYSTEM_EVENT, &value, &hci_result); + if (hci_result == HCI_SUCCESS) { + key_event_valid = 1; + last_key_event = value; + } else if (hci_result == HCI_EMPTY) { + /* better luck next time */ + } else if (hci_result == HCI_NOT_SUPPORTED) { + /* This is a workaround for an unresolved issue on + * some machines where system events sporadically + * become disabled. */ + hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result); + printk(MY_NOTICE "Re-enabled hotkeys\n"); + } else { + printk(MY_ERR "Error reading hotkey status\n"); + goto end; + } + } + + p += sprintf(p, "hotkey_ready: %d\n", key_event_valid); + p += sprintf(p, "hotkey: 0x%04x\n", last_key_event); + + end: + return p; +} + +static unsigned long write_keys(const char *buffer, unsigned long count) +{ + int value; + + if (sscanf(buffer, " hotkey_ready : %i", &value) == 1 && value == 0) { + key_event_valid = 0; + } else { + return -EINVAL; + } + + return count; +} + +static char *read_version(char *p) +{ + p += sprintf(p, "driver: %s\n", TOSHIBA_ACPI_VERSION); + p += sprintf(p, "proc_interface: %d\n", + PROC_INTERFACE_VERSION); + return p; +} + +/* proc and module init + */ + +#define PROC_TOSHIBA "toshiba" + +static ProcItem proc_items[] = { + {"lcd", read_lcd, write_lcd}, + {"video", read_video, write_video}, + {"fan", read_fan, write_fan}, + {"keys", read_keys, write_keys}, + {"version", read_version, NULL}, + {NULL} +}; + +static acpi_status __init add_device(void) +{ + struct proc_dir_entry *proc; + ProcItem *item; + + for (item = proc_items; item->name; ++item) { + proc = create_proc_read_entry(item->name, + S_IFREG | S_IRUGO | S_IWUSR, + toshiba_proc_dir, + (read_proc_t *) dispatch_read, + item); + if (proc) + proc->owner = THIS_MODULE; + if (proc && item->write_func) + proc->write_proc = (write_proc_t *) dispatch_write; + } + + return AE_OK; +} + +static acpi_status remove_device(void) +{ + ProcItem *item; + + for (item = proc_items; item->name; ++item) + remove_proc_entry(item->name, toshiba_proc_dir); + return AE_OK; +} + +static struct backlight_ops toshiba_backlight_data = { + .get_brightness = get_lcd, + .update_status = set_lcd_status, +}; + +static void toshiba_acpi_exit(void) +{ + if (toshiba_acpi.poll_dev) { + input_unregister_polled_device(toshiba_acpi.poll_dev); + input_free_polled_device(toshiba_acpi.poll_dev); + } + + if (toshiba_acpi.rfk_dev) + rfkill_unregister(toshiba_acpi.rfk_dev); + + if (toshiba_backlight_device) + backlight_device_unregister(toshiba_backlight_device); + + remove_device(); + + if (toshiba_proc_dir) + remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); + + platform_device_unregister(toshiba_acpi.p_dev); + + return; +} + +static int __init toshiba_acpi_init(void) +{ + acpi_status status = AE_OK; + u32 hci_result; + bool bt_present; + bool bt_on; + bool radio_on; + int ret = 0; + + if (acpi_disabled) + return -ENODEV; + + /* simple device detection: look for HCI method */ + if (is_valid_acpi_path(METHOD_HCI_1)) + method_hci = METHOD_HCI_1; + else if (is_valid_acpi_path(METHOD_HCI_2)) + method_hci = METHOD_HCI_2; + else + return -ENODEV; + + printk(MY_INFO "Toshiba Laptop ACPI Extras version %s\n", + TOSHIBA_ACPI_VERSION); + printk(MY_INFO " HCI method: %s\n", method_hci); + + mutex_init(&toshiba_acpi.mutex); + + toshiba_acpi.p_dev = platform_device_register_simple("toshiba_acpi", + -1, NULL, 0); + if (IS_ERR(toshiba_acpi.p_dev)) { + ret = PTR_ERR(toshiba_acpi.p_dev); + printk(MY_ERR "unable to register platform device\n"); + toshiba_acpi.p_dev = NULL; + toshiba_acpi_exit(); + return ret; + } + + force_fan = 0; + key_event_valid = 0; + + /* enable event fifo */ + hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result); + + toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir); + if (!toshiba_proc_dir) { + toshiba_acpi_exit(); + return -ENODEV; + } else { + toshiba_proc_dir->owner = THIS_MODULE; + status = add_device(); + if (ACPI_FAILURE(status)) { + toshiba_acpi_exit(); + return -ENODEV; + } + } + + toshiba_backlight_device = backlight_device_register("toshiba", + &toshiba_acpi.p_dev->dev, + NULL, + &toshiba_backlight_data); + if (IS_ERR(toshiba_backlight_device)) { + ret = PTR_ERR(toshiba_backlight_device); + + printk(KERN_ERR "Could not register toshiba backlight device\n"); + toshiba_backlight_device = NULL; + toshiba_acpi_exit(); + return ret; + } + toshiba_backlight_device->props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1; + + /* Register rfkill switch for Bluetooth */ + if (hci_get_bt_present(&bt_present) == HCI_SUCCESS && bt_present) { + toshiba_acpi.rfk_dev = rfkill_allocate(&toshiba_acpi.p_dev->dev, + RFKILL_TYPE_BLUETOOTH); + if (!toshiba_acpi.rfk_dev) { + printk(MY_ERR "unable to allocate rfkill device\n"); + toshiba_acpi_exit(); + return -ENOMEM; + } + + toshiba_acpi.rfk_dev->name = toshiba_acpi.bt_name; + toshiba_acpi.rfk_dev->toggle_radio = bt_rfkill_toggle_radio; + toshiba_acpi.rfk_dev->user_claim_unsupported = 1; + toshiba_acpi.rfk_dev->data = &toshiba_acpi; + + if (hci_get_bt_on(&bt_on) == HCI_SUCCESS && bt_on) { + toshiba_acpi.rfk_dev->state = RFKILL_STATE_UNBLOCKED; + } else if (hci_get_radio_state(&radio_on) == HCI_SUCCESS && + radio_on) { + toshiba_acpi.rfk_dev->state = RFKILL_STATE_SOFT_BLOCKED; + } else { + toshiba_acpi.rfk_dev->state = RFKILL_STATE_HARD_BLOCKED; + } + + ret = rfkill_register(toshiba_acpi.rfk_dev); + if (ret) { + printk(MY_ERR "unable to register rfkill device\n"); + toshiba_acpi_exit(); + return -ENOMEM; + } + + /* Register input device for kill switch */ + toshiba_acpi.poll_dev = input_allocate_polled_device(); + if (!toshiba_acpi.poll_dev) { + printk(MY_ERR + "unable to allocate kill-switch input device\n"); + toshiba_acpi_exit(); + return -ENOMEM; + } + toshiba_acpi.poll_dev->private = &toshiba_acpi; + toshiba_acpi.poll_dev->poll = bt_poll_rfkill; + toshiba_acpi.poll_dev->poll_interval = 1000; /* msecs */ + + toshiba_acpi.poll_dev->input->name = toshiba_acpi.rfk_name; + toshiba_acpi.poll_dev->input->id.bustype = BUS_HOST; + /* Toshiba USB ID */ + toshiba_acpi.poll_dev->input->id.vendor = 0x0930; + set_bit(EV_SW, toshiba_acpi.poll_dev->input->evbit); + set_bit(SW_RFKILL_ALL, toshiba_acpi.poll_dev->input->swbit); + input_report_switch(toshiba_acpi.poll_dev->input, + SW_RFKILL_ALL, TRUE); + input_sync(toshiba_acpi.poll_dev->input); + + ret = input_register_polled_device(toshiba_acpi.poll_dev); + if (ret) { + printk(MY_ERR + "unable to register kill-switch input device\n"); + toshiba_acpi_exit(); + return ret; + } + } + + return 0; +} + +module_init(toshiba_acpi_init); +module_exit(toshiba_acpi_exit); |
