diff options
author | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2013-04-17 18:15:15 +0200 |
---|---|---|
committer | Jiri Kosina <jkosina@suse.cz> | 2013-04-18 19:06:20 -0700 |
commit | 9a4a5574ce427c364d81746fc7fb82d86b5f1a7e (patch) | |
tree | 7ae94c441dc066b689447b6c7e39173c8f089112 /drivers | |
parent | 014642cb0a08d1b12c6089c48c7ba6002a0f6811 (diff) |
HID: appleir: add support for Apple ir devices
This driver was originally written by James McKenzie, updated by
Greg Kroah-Hartman, further updated by Bastien Nocera, with suspend
support added.
I ported it to the HID subsystem, in order to simplify it a litle
and allow lirc to use it through hiddev.
More recent versions of the IR receiver are also supported through
a patch by Alex Karpenko. The patch also adds support for the 2nd
and 5th generation of the controller, and the menu key on newer
brushed metal remotes.
Tested-by: Fabien André <fabien.andre@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/hid/Kconfig | 11 | ||||
-rw-r--r-- | drivers/hid/Makefile | 1 | ||||
-rw-r--r-- | drivers/hid/hid-apple.c | 4 | ||||
-rw-r--r-- | drivers/hid/hid-appleir.c | 352 | ||||
-rw-r--r-- | drivers/hid/hid-core.c | 7 | ||||
-rw-r--r-- | drivers/hid/hid-ids.h | 5 |
6 files changed, 373 insertions, 7 deletions
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 5f07d85c418..7f5e0aa5fe5 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -122,6 +122,17 @@ config HID_APPLE Say Y here if you want support for keyboards of Apple iBooks, PowerBooks, MacBooks, MacBook Pros and Apple Aluminum. +config HID_APPLEIR + tristate "Apple infrared receiver" + depends on (USB_HID) + ---help--- + Support for Apple infrared remote control. All the Apple computers from + 2005 onwards include such a port, except the unibody Macbook (2009), + and Mac Pros. This receiver is also used in the Apple TV set-top box + prior to the 2010 model. + + Say Y here if you want support for Apple infrared remote control. + config HID_AUREAL tristate "Aureal" depends on USB_HID diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile index 72d1b0bc0a9..cec36715a45 100644 --- a/drivers/hid/Makefile +++ b/drivers/hid/Makefile @@ -39,6 +39,7 @@ endif obj-$(CONFIG_HID_A4TECH) += hid-a4tech.o obj-$(CONFIG_HID_ACRUX) += hid-axff.o obj-$(CONFIG_HID_APPLE) += hid-apple.o +obj-$(CONFIG_HID_APPLEIR) += hid-appleir.o obj-$(CONFIG_HID_AUREAL) += hid-aureal.o obj-$(CONFIG_HID_BELKIN) += hid-belkin.o obj-$(CONFIG_HID_CHERRY) += hid-cherry.o diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c index 320a958d413..5c5c57b6d59 100644 --- a/drivers/hid/hid-apple.c +++ b/drivers/hid/hid-apple.c @@ -390,10 +390,6 @@ static void apple_remove(struct hid_device *hdev) } static const struct hid_device_id apple_devices[] = { - { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL), - .driver_data = APPLE_HIDDEV | APPLE_IGNORE_HIDINPUT }, - { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4), - .driver_data = APPLE_HIDDEV | APPLE_IGNORE_HIDINPUT }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE), .driver_data = APPLE_MIGHTYMOUSE | APPLE_INVERT_HWHEEL }, diff --git a/drivers/hid/hid-appleir.c b/drivers/hid/hid-appleir.c new file mode 100644 index 00000000000..a42e6a394c5 --- /dev/null +++ b/drivers/hid/hid-appleir.c @@ -0,0 +1,352 @@ +/* + * HID driver for the apple ir device + * + * Original driver written by James McKenzie + * Ported to recent 2.6 kernel versions by Greg Kroah-Hartman <gregkh@suse.de> + * Updated to support newer remotes by Bastien Nocera <hadess@hadess.net> + * Ported to HID subsystem by Benjamin Tissoires <benjamin.tissoires@gmail.com> + * + * Copyright (C) 2006 James McKenzie + * Copyright (C) 2008 Greg Kroah-Hartman <greg@kroah.com> + * Copyright (C) 2008 Novell Inc. + * Copyright (C) 2010, 2012 Bastien Nocera <hadess@hadess.net> + * Copyright (C) 2013 Benjamin Tissoires <benjamin.tissoires@gmail.com> + * Copyright (C) 2013 Red Hat Inc. All Rights Reserved + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + */ + +#include <linux/device.h> +#include <linux/hid.h> +#include <linux/module.h> +#include "hid-ids.h" + +MODULE_AUTHOR("James McKenzie"); +MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@redhat.com>"); +MODULE_DESCRIPTION("HID Apple IR remote controls"); +MODULE_LICENSE("GPL"); + +#define KEY_MASK 0x0F +#define TWO_PACKETS_MASK 0x40 + +/* + * James McKenzie has two devices both of which report the following + * 25 87 ee 83 0a + + * 25 87 ee 83 0c - + * 25 87 ee 83 09 << + * 25 87 ee 83 06 >> + * 25 87 ee 83 05 >" + * 25 87 ee 83 03 menu + * 26 00 00 00 00 for key repeat + */ + +/* + * Thomas Glanzmann reports the following responses + * 25 87 ee ca 0b + + * 25 87 ee ca 0d - + * 25 87 ee ca 08 << + * 25 87 ee ca 07 >> + * 25 87 ee ca 04 >" + * 25 87 ee ca 02 menu + * 26 00 00 00 00 for key repeat + * + * He also observes the following event sometimes + * sent after a key is release, which I interpret + * as a flat battery message + * 25 87 e0 ca 06 flat battery + */ + +/* + * Alexandre Karpenko reports the following responses for Device ID 0x8242 + * 25 87 ee 47 0b + + * 25 87 ee 47 0d - + * 25 87 ee 47 08 << + * 25 87 ee 47 07 >> + * 25 87 ee 47 04 >" + * 25 87 ee 47 02 menu + * 26 87 ee 47 ** for key repeat (** is the code of the key being held) + */ + +/* + * Bastien Nocera's remote + * 25 87 ee 91 5f followed by + * 25 87 ee 91 05 gives you >" + * + * 25 87 ee 91 5c followed by + * 25 87 ee 91 05 gives you the middle button + */ + +/* + * Fabien Andre's remote + * 25 87 ee a3 5e followed by + * 25 87 ee a3 04 gives you >" + * + * 25 87 ee a3 5d followed by + * 25 87 ee a3 04 gives you the middle button + */ + +static const unsigned short appleir_key_table[] = { + KEY_RESERVED, + KEY_MENU, + KEY_PLAYPAUSE, + KEY_FORWARD, + KEY_BACK, + KEY_VOLUMEUP, + KEY_VOLUMEDOWN, + KEY_RESERVED, + KEY_RESERVED, + KEY_RESERVED, + KEY_RESERVED, + KEY_RESERVED, + KEY_RESERVED, + KEY_RESERVED, + KEY_ENTER, + KEY_PLAYPAUSE, + KEY_RESERVED, +}; + +struct appleir { + struct input_dev *input_dev; + struct hid_device *hid; + unsigned short keymap[ARRAY_SIZE(appleir_key_table)]; + struct timer_list key_up_timer; /* timer for key up */ + spinlock_t lock; /* protects .current_key */ + int current_key; /* the currently pressed key */ + int prev_key_idx; /* key index in a 2 packets message */ +}; + +static int get_key(int data) +{ + /* + * The key is coded accross bits 2..9: + * + * 0x00 or 0x01 ( ) key: 0 -> KEY_RESERVED + * 0x02 or 0x03 ( menu ) key: 1 -> KEY_MENU + * 0x04 or 0x05 ( >" ) key: 2 -> KEY_PLAYPAUSE + * 0x06 or 0x07 ( >> ) key: 3 -> KEY_FORWARD + * 0x08 or 0x09 ( << ) key: 4 -> KEY_BACK + * 0x0a or 0x0b ( + ) key: 5 -> KEY_VOLUMEUP + * 0x0c or 0x0d ( - ) key: 6 -> KEY_VOLUMEDOWN + * 0x0e or 0x0f ( ) key: 7 -> KEY_RESERVED + * 0x50 or 0x51 ( ) key: 8 -> KEY_RESERVED + * 0x52 or 0x53 ( ) key: 9 -> KEY_RESERVED + * 0x54 or 0x55 ( ) key: 10 -> KEY_RESERVED + * 0x56 or 0x57 ( ) key: 11 -> KEY_RESERVED + * 0x58 or 0x59 ( ) key: 12 -> KEY_RESERVED + * 0x5a or 0x5b ( ) key: 13 -> KEY_RESERVED + * 0x5c or 0x5d ( middle ) key: 14 -> KEY_ENTER + * 0x5e or 0x5f ( >" ) key: 15 -> KEY_PLAYPAUSE + * + * Packets starting with 0x5 are part of a two-packets message, + * we notify the caller by sending a negative value. + */ + int key = (data >> 1) & KEY_MASK; + + if ((data & TWO_PACKETS_MASK)) + /* Part of a 2 packets-command */ + key = -key; + + return key; +} + +static void key_up(struct hid_device *hid, struct appleir *appleir, int key) +{ + input_report_key(appleir->input_dev, key, 0); + input_sync(appleir->input_dev); +} + +static void key_down(struct hid_device *hid, struct appleir *appleir, int key) +{ + input_report_key(appleir->input_dev, key, 1); + input_sync(appleir->input_dev); +} + +static void battery_flat(struct appleir *appleir) +{ + dev_err(&appleir->input_dev->dev, "possible flat battery?\n"); +} + +static void key_up_tick(unsigned long data) +{ + struct appleir *appleir = (struct appleir *)data; + struct hid_device *hid = appleir->hid; + unsigned long flags; + + spin_lock_irqsave(&appleir->lock, flags); + if (appleir->current_key) { + key_up(hid, appleir, appleir->current_key); + appleir->current_key = 0; + } + spin_unlock_irqrestore(&appleir->lock, flags); +} + +static int appleir_raw_event(struct hid_device *hid, struct hid_report *report, + u8 *data, int len) +{ + struct appleir *appleir = hid_get_drvdata(hid); + static const u8 keydown[] = { 0x25, 0x87, 0xee }; + static const u8 keyrepeat[] = { 0x26, }; + static const u8 flatbattery[] = { 0x25, 0x87, 0xe0 }; + unsigned long flags; + + if (len != 5) + goto out; + + if (!memcmp(data, keydown, sizeof(keydown))) { + int index; + + spin_lock_irqsave(&appleir->lock, flags); + /* + * If we already have a key down, take it up before marking + * this one down + */ + if (appleir->current_key) + key_up(hid, appleir, appleir->current_key); + + /* Handle dual packet commands */ + if (appleir->prev_key_idx > 0) + index = appleir->prev_key_idx; + else + index = get_key(data[4]); + + if (index >= 0) { + appleir->current_key = appleir->keymap[index]; + + key_down(hid, appleir, appleir->current_key); + /* + * Remote doesn't do key up, either pull them up, in + * the test above, or here set a timer which pulls + * them up after 1/8 s + */ + mod_timer(&appleir->key_up_timer, jiffies + HZ / 8); + appleir->prev_key_idx = 0; + } else + /* Remember key for next packet */ + appleir->prev_key_idx = -index; + spin_unlock_irqrestore(&appleir->lock, flags); + goto out; + } + + appleir->prev_key_idx = 0; + + if (!memcmp(data, keyrepeat, sizeof(keyrepeat))) { + key_down(hid, appleir, appleir->current_key); + /* + * Remote doesn't do key up, either pull them up, in the test + * above, or here set a timer which pulls them up after 1/8 s + */ + mod_timer(&appleir->key_up_timer, jiffies + HZ / 8); + goto out; + } + + if (!memcmp(data, flatbattery, sizeof(flatbattery))) { + battery_flat(appleir); + /* Fall through */ + } + +out: + /* let hidraw and hiddev handle the report */ + return 0; +} + +static void appleir_input_configured(struct hid_device *hid, + struct hid_input *hidinput) +{ + struct input_dev *input_dev = hidinput->input; + struct appleir *appleir = hid_get_drvdata(hid); + int i; + + appleir->input_dev = input_dev; + + input_dev->keycode = appleir->keymap; + input_dev->keycodesize = sizeof(unsigned short); + input_dev->keycodemax = ARRAY_SIZE(appleir->keymap); + + input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); + + memcpy(appleir->keymap, appleir_key_table, sizeof(appleir->keymap)); + for (i = 0; i < ARRAY_SIZE(appleir_key_table); i++) + set_bit(appleir->keymap[i], input_dev->keybit); + clear_bit(KEY_RESERVED, input_dev->keybit); +} + +static int appleir_input_mapping(struct hid_device *hid, + struct hid_input *hi, struct hid_field *field, + struct hid_usage *usage, unsigned long **bit, int *max) +{ + return -1; +} + +static int appleir_probe(struct hid_device *hid, const struct hid_device_id *id) +{ + int ret; + struct appleir *appleir; + + appleir = kzalloc(sizeof(struct appleir), GFP_KERNEL); + if (!appleir) { + ret = -ENOMEM; + goto allocfail; + } + + appleir->hid = hid; + + spin_lock_init(&appleir->lock); + setup_timer(&appleir->key_up_timer, + key_up_tick, (unsigned long) appleir); + + hid_set_drvdata(hid, appleir); + + ret = hid_parse(hid); + if (ret) { + hid_err(hid, "parse failed\n"); + goto fail; + } + + ret = hid_hw_start(hid, HID_CONNECT_DEFAULT | HID_CONNECT_HIDDEV_FORCE); + if (ret) { + hid_err(hid, "hw start failed\n"); + goto fail; + } + + return 0; +fail: + kfree(appleir); +allocfail: + return ret; +} + +static void appleir_remove(struct hid_device *hid) +{ + struct appleir *appleir = hid_get_drvdata(hid); + hid_hw_stop(hid); + del_timer_sync(&appleir->key_up_timer); + kfree(appleir); +} + +static const struct hid_device_id appleir_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) }, + { } +}; +MODULE_DEVICE_TABLE(hid, appleir_devices); + +static struct hid_driver appleir_driver = { + .name = "appleir", + .id_table = appleir_devices, + .raw_event = appleir_raw_event, + .input_configured = appleir_input_configured, + .probe = appleir_probe, + .remove = appleir_remove, + .input_mapping = appleir_input_mapping, +}; +module_hid_driver(appleir_driver); diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index aa341d13586..bf434a0f813 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1502,8 +1502,6 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) }, { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) }, { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) }, - { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) }, - { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) }, @@ -1527,6 +1525,11 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) }, diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 5309fd5eb0e..68a73740ac9 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -137,8 +137,11 @@ #define USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO 0x0256 #define USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY 0x030a #define USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY 0x030b -#define USB_DEVICE_ID_APPLE_ATV_IRCONTROL 0x8241 +#define USB_DEVICE_ID_APPLE_IRCONTROL 0x8240 +#define USB_DEVICE_ID_APPLE_IRCONTROL2 0x1440 +#define USB_DEVICE_ID_APPLE_IRCONTROL3 0x8241 #define USB_DEVICE_ID_APPLE_IRCONTROL4 0x8242 +#define USB_DEVICE_ID_APPLE_IRCONTROL5 0x8243 #define USB_VENDOR_ID_ASUS 0x0486 #define USB_DEVICE_ID_ASUS_T91MT 0x0185 |