Commit Graph

9 Commits

Author SHA1 Message Date
Heiner Kallweit 3d1355b3cf HID: hid-led: fix issue with transfer buffer not being dma capable
The hid-led driver works fine under 4.8.0, however with the next
kernel from today I get this:

------------[ cut here ]------------
WARNING: CPU: 0 PID: 2578 at drivers/usb/core/hcd.c:1584 usb_hcd_map_urb_for_dma+0x373/0x550 [usbcore]
transfer buffer not dma capable
Modules linked in: hid_led(+) usbhid vfat fat ir_sony_decoder iwlmvm led_class mac80211 snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal iwlwifi crc32c_intel snd_hda_codec_hdmi i2c_i801 i2c_smbus snd_hda_intel cfg80211 snd_hda_codec snd_hda_core snd_pcm r8169 snd_timer mei_me mii snd mei ir_lirc_codec lirc_dev nuvoton_cir rc_core btusb btintel bluetooth rfkill usb_storage efivarfs ipv6 ehci_pci ehci_hcd xhci_pci xhci_hcd usbcore usb_common ext4 jbd2 mbcache ahci libahci libata
CPU: 0 PID: 2578 Comm: systemd-udevd Not tainted 4.8.0-rc8-next-20161003 #1
Hardware name: ZOTAC ZBOX-CI321NANO/ZBOX-CI321NANO, BIOS B246P105 06/01/2015
 ffffc90003dbb7e0 ffffffff81280425 ffffc90003dbb830 0000000000000000
 ffffc90003dbb820 ffffffff8105b086 0000063003dbb800 ffff88006f374480
 0000000000000000 0000000000000000 0000000000000001 ffff880079544000
Call Trace:
 [<ffffffff81280425>] dump_stack+0x68/0x93
 [<ffffffff8105b086>] __warn+0xc6/0xe0
 [<ffffffff8105b0ea>] warn_slowpath_fmt+0x4a/0x50
 [<ffffffffa0143a43>] usb_hcd_map_urb_for_dma+0x373/0x550 [usbcore]
 [<ffffffffa01441b6>] usb_hcd_submit_urb+0x316/0x9c0 [usbcore]
 [<ffffffff810bce80>] ? rcu_read_lock_sched_held+0x40/0x80
 [<ffffffff810e0043>] ? module_assert_mutex_or_preempt+0x13/0x50
 [<ffffffff810e0c07>] ? __module_address+0x27/0xf0
 [<ffffffffa01456e4>] usb_submit_urb+0x2c4/0x520 [usbcore]
 [<ffffffffa0145fea>] usb_start_wait_urb+0x5a/0xe0 [usbcore]
 [<ffffffffa014612c>] usb_control_msg+0xbc/0xf0 [usbcore]
 [<ffffffff810e0c07>] ? __module_address+0x27/0xf0
 [<ffffffffa079a724>] usbhid_raw_request+0xa4/0x180 [usbhid]
 [<ffffffffa07a93b1>] hidled_recv+0x71/0xe0 [hid_led]
 [<ffffffffa07a947d>] thingm_init+0x2d/0x50 [hid_led]
 [<ffffffffa07a969b>] hidled_probe+0xcb/0x24a [hid_led]
 [<ffffffff814d96f2>] hid_device_probe+0xd2/0x150
 [<ffffffff8146023d>] driver_probe_device+0x1fd/0x2c0
 [<ffffffff8146039a>] __driver_attach+0x9a/0xa0
 [<ffffffff81460300>] ? driver_probe_device+0x2c0/0x2c0
 [<ffffffff8145e25d>] bus_for_each_dev+0x5d/0x90
 [<ffffffff8145fa79>] driver_attach+0x19/0x20
 [<ffffffff8145f5ff>] bus_add_driver+0x11f/0x220
 [<ffffffffa07ac000>] ? 0xffffffffa07ac000
 [<ffffffff8146086b>] driver_register+0x5b/0xd0
 [<ffffffffa07ac000>] ? 0xffffffffa07ac000
 [<ffffffff814d83d1>] __hid_register_driver+0x61/0xa0
 [<ffffffffa07ac01e>] hidled_driver_init+0x1e/0x20 [hid_led]
 [<ffffffff81000408>] do_one_initcall+0x38/0x150
 [<ffffffff810bce80>] ? rcu_read_lock_sched_held+0x40/0x80
 [<ffffffff81194ca0>] ? kmem_cache_alloc_trace+0x1d0/0x230
 [<ffffffff811342f9>] do_init_module+0x5a/0x1cb
 [<ffffffff810e3862>] load_module+0x1e42/0x2530
 [<ffffffff810e0990>] ? __symbol_put+0x50/0x50
 [<ffffffff810dfc50>] ? show_coresize+0x30/0x30
 [<ffffffff811ad650>] ? kernel_read_file+0x100/0x190
 [<ffffffff811ad794>] ? kernel_read_file_from_fd+0x44/0x70
 [<ffffffff810e415a>] SYSC_finit_module+0xba/0xc0
 [<ffffffff810e4179>] SyS_finit_module+0x9/0x10
 [<ffffffff815e082a>] entry_SYSCALL_64_fastpath+0x18/0xad
---[ end trace c9e6ea27003ecf9e ]---

Fix this by using a kmalloc'ed buffer when calling hid_hw_raw_request.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-10-10 10:47:03 +02:00
Heiner Kallweit f4c109b660 HID: hid-led: fix Delcom support on big endian systems
Properly handle this __le16 value on big endian systems.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-07-08 12:36:03 +02:00
Heiner Kallweit 9d1e048cc8 HID: hid-led: add support for Greynut Luxafor
Add support for Greynut Luxafor. This device has two groups of three
independent LED's each.

Successfully tested with such a device.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-07-07 11:20:59 +02:00
Heiner Kallweit de9086509e HID: hid-led: add support for Delcom Visual Signal Indicator G2
Add support for the HID-compliant Delcom Visual Signal Indicator
generation 2 devices.

Successfully tested with part no 904000 from the family of these devices.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-07-07 11:17:12 +02:00
Heiner Kallweit 34d9810b31 HID: hid-led: remove report id from struct hidled_config
Delcom uses the report id to submit command information. To be able to
use the hidled framework also for Delcom devices we have to remove the
report id from struct hidled_config.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-07-07 11:17:11 +02:00
Heiner Kallweit 007414e8fb HID: hid-led: add support for ThingM blink(1)
Add support for ThingM blink(1) and make the dedicated ThingM driver
obsolete.

Successfully tested with a blink(1) mk2.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-06-23 08:47:41 +02:00
Heiner Kallweit 4374573008 HID: hid-led: add support for reading from LED devices
Add support for reading data from LED devices.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-06-23 08:47:40 +02:00
Heiner Kallweit 5bc839367b HID: hid-led: add support for devices with multiple independent LEDs
Add generic support for devices with multiple independent LED's.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-06-23 08:47:40 +02:00
Heiner Kallweit 6c7ad07e9e HID: migrate USB LED driver from usb misc to hid
This patch migrates the USB LED driver to the HID subsystem.
Supported are Dream Cheeky Webmail Notifier / Friends Alert
and Riso Kagaku Webmail Notifier.

Benefits:
- Avoid using USB low-level calls and use the HID subsystem instead
  (as this device provides a USB HID interface)
- Use standard LED subsystem instead of proprietary sysfs entries,
  this allows e.g. to use the device with features like triggers

Successfully tested with a Dream Cheeky Webmail Notifier and a
Riso Kagaku Webmail Notifier compatible device.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-06-17 22:28:32 +02:00