Commit b7b8e368 authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid

Pull HID updates from Jiri Kosina:

 - fix for some modern devices that return multi-byte battery report,
   from Grant Likely

 - fix for devices with Resolution Multiplier, from Peter Hutterer

 - device probing speed increase, from Dmitry Torokhov

 - ThinkPad 10 Ultrabook Keyboard support, from Hans de Goede

 - other small assorted fixes and device ID additions

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: quirks: add NOGET quirk for Logitech GROUP
  HID: Replace HTTP links with HTTPS ones
  HID: udraw-ps3: Replace HTTP links with HTTPS ones
  HID: mcp2221: Replace HTTP links with HTTPS ones
  HID: input: Fix devices that return multiple bytes in battery report
  HID: lenovo: Fix spurious F23 key press report during resume from suspend
  HID: lenovo: Add ThinkPad 10 Ultrabook Keyboard fn_lock support
  HID: lenovo: Add ThinkPad 10 Ultrabook Keyboard support
  HID: lenovo: Rename fn_lock sysfs attr handlers to make them generic
  HID: lenovo: Factor out generic parts of the LED code
  HID: lenovo: Merge tpkbd and cptkbd data structures
  HID: intel-ish-hid: Replace PCI_DEV_FLAGS_NO_D3 with pci_save_state
  HID: Wiimote: Treat the d-pad as an analogue stick
  HID: input: do not run GET_REPORT unless there's a Resolution Multiplier
  HID: usbhid: remove redundant assignment to variable retval
  HID: usbhid: do not sleep when opening device
parents fc80c51f e6b6e19a
...@@ -20,7 +20,7 @@ config HID ...@@ -20,7 +20,7 @@ config HID
removed from the HID bus by the transport-layer drivers, such as removed from the HID bus by the transport-layer drivers, such as
usbhid (USB_HID) and hidp (BT_HIDP). usbhid (USB_HID) and hidp (BT_HIDP).
For docs and specs, see http://www.usb.org/developers/hidpage/ For docs and specs, see https://www.usb.org/developers/hidpage/
If unsure, say Y. If unsure, say Y.
......
...@@ -11,7 +11,7 @@ ...@@ -11,7 +11,7 @@
* host communicates with the CP2112 via raw HID reports. * host communicates with the CP2112 via raw HID reports.
* *
* Data Sheet: * Data Sheet:
* http://www.silabs.com/Support%20Documents/TechnicalDocs/CP2112.pdf * https://www.silabs.com/Support%20Documents/TechnicalDocs/CP2112.pdf
* Programming Interface Specification: * Programming Interface Specification:
* https://www.silabs.com/documents/public/application-notes/an495-cp2112-interface-specification.pdf * https://www.silabs.com/documents/public/application-notes/an495-cp2112-interface-specification.pdf
*/ */
......
...@@ -724,6 +724,7 @@ ...@@ -724,6 +724,7 @@
#define USB_DEVICE_ID_LENOVO_CUSBKBD 0x6047 #define USB_DEVICE_ID_LENOVO_CUSBKBD 0x6047
#define USB_DEVICE_ID_LENOVO_CBTKBD 0x6048 #define USB_DEVICE_ID_LENOVO_CBTKBD 0x6048
#define USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL 0x6049 #define USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL 0x6049
#define USB_DEVICE_ID_LENOVO_TP10UBKBD 0x6062
#define USB_DEVICE_ID_LENOVO_TPPRODOCK 0x6067 #define USB_DEVICE_ID_LENOVO_TPPRODOCK 0x6067
#define USB_DEVICE_ID_LENOVO_X1_COVER 0x6085 #define USB_DEVICE_ID_LENOVO_X1_COVER 0x6085
#define USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_608D 0x608d #define USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_608D 0x608d
...@@ -773,6 +774,7 @@ ...@@ -773,6 +774,7 @@
#define USB_DEVICE_ID_LOGITECH_G27_WHEEL 0xc29b #define USB_DEVICE_ID_LOGITECH_G27_WHEEL 0xc29b
#define USB_DEVICE_ID_LOGITECH_WII_WHEEL 0xc29c #define USB_DEVICE_ID_LOGITECH_WII_WHEEL 0xc29c
#define USB_DEVICE_ID_LOGITECH_ELITE_KBD 0xc30a #define USB_DEVICE_ID_LOGITECH_ELITE_KBD 0xc30a
#define USB_DEVICE_ID_LOGITECH_GROUP_AUDIO 0x0882
#define USB_DEVICE_ID_S510_RECEIVER 0xc50c #define USB_DEVICE_ID_S510_RECEIVER 0xc50c
#define USB_DEVICE_ID_S510_RECEIVER_2 0xc517 #define USB_DEVICE_ID_S510_RECEIVER_2 0xc517
#define USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500 0xc512 #define USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500 0xc512
......
...@@ -350,13 +350,13 @@ static int hidinput_query_battery_capacity(struct hid_device *dev) ...@@ -350,13 +350,13 @@ static int hidinput_query_battery_capacity(struct hid_device *dev)
u8 *buf; u8 *buf;
int ret; int ret;
buf = kmalloc(2, GFP_KERNEL); buf = kmalloc(4, GFP_KERNEL);
if (!buf) if (!buf)
return -ENOMEM; return -ENOMEM;
ret = hid_hw_raw_request(dev, dev->battery_report_id, buf, 2, ret = hid_hw_raw_request(dev, dev->battery_report_id, buf, 4,
dev->battery_report_type, HID_REQ_GET_REPORT); dev->battery_report_type, HID_REQ_GET_REPORT);
if (ret != 2) { if (ret < 2) {
kfree(buf); kfree(buf);
return -ENODATA; return -ENODATA;
} }
...@@ -1560,21 +1560,12 @@ static bool __hidinput_change_resolution_multipliers(struct hid_device *hid, ...@@ -1560,21 +1560,12 @@ static bool __hidinput_change_resolution_multipliers(struct hid_device *hid,
{ {
struct hid_usage *usage; struct hid_usage *usage;
bool update_needed = false; bool update_needed = false;
bool get_report_completed = false;
int i, j; int i, j;
if (report->maxfield == 0) if (report->maxfield == 0)
return false; return false;
/*
* If we have more than one feature within this report we
* need to fill in the bits from the others before we can
* overwrite the ones for the Resolution Multiplier.
*/
if (report->maxfield > 1) {
hid_hw_request(hid, report, HID_REQ_GET_REPORT);
hid_hw_wait(hid);
}
for (i = 0; i < report->maxfield; i++) { for (i = 0; i < report->maxfield; i++) {
__s32 value = use_logical_max ? __s32 value = use_logical_max ?
report->field[i]->logical_maximum : report->field[i]->logical_maximum :
...@@ -1593,6 +1584,25 @@ static bool __hidinput_change_resolution_multipliers(struct hid_device *hid, ...@@ -1593,6 +1584,25 @@ static bool __hidinput_change_resolution_multipliers(struct hid_device *hid,
if (usage->hid != HID_GD_RESOLUTION_MULTIPLIER) if (usage->hid != HID_GD_RESOLUTION_MULTIPLIER)
continue; continue;
/*
* If we have more than one feature within this
* report we need to fill in the bits from the
* others before we can overwrite the ones for the
* Resolution Multiplier.
*
* But if we're not allowed to read from the device,
* we just bail. Such a device should not exist
* anyway.
*/
if (!get_report_completed && report->maxfield > 1) {
if (hid->quirks & HID_QUIRK_NO_INIT_REPORTS)
return update_needed;
hid_hw_request(hid, report, HID_REQ_GET_REPORT);
hid_hw_wait(hid);
get_report_completed = true;
}
report->field[i]->value[j] = value; report->field[i]->value[j] = value;
update_needed = true; update_needed = true;
} }
......
This diff is collapsed.
...@@ -4,7 +4,7 @@ ...@@ -4,7 +4,7 @@
* *
* Copyright (c) 2020, Rishi Gupta <gupt21@gmail.com> * Copyright (c) 2020, Rishi Gupta <gupt21@gmail.com>
* *
* Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/20005565B.pdf * Datasheet: https://ww1.microchip.com/downloads/en/DeviceDoc/20005565B.pdf
*/ */
#include <linux/module.h> #include <linux/module.h>
......
...@@ -179,6 +179,7 @@ static const struct hid_device_id hid_quirks[] = { ...@@ -179,6 +179,7 @@ static const struct hid_device_id hid_quirks[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD2, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS), HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT }, { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD2, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS), HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD), HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT }, { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD), HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE), HID_QUIRK_MULTI_INPUT }, { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_GROUP_AUDIO), HID_QUIRK_NOGET },
{ 0 } { 0 }
}; };
......
...@@ -16,7 +16,7 @@ MODULE_LICENSE("GPL"); ...@@ -16,7 +16,7 @@ MODULE_LICENSE("GPL");
/* /*
* Protocol information from: * Protocol information from:
* http://brandonw.net/udraw/ * https://brandonw.net/udraw/
* and the source code of: * and the source code of:
* https://vvvv.org/contribution/udraw-hid * https://vvvv.org/contribution/udraw-hid
*/ */
......
...@@ -1870,6 +1870,11 @@ static const struct hid_device_id wiimote_hid_devices[] = { ...@@ -1870,6 +1870,11 @@ static const struct hid_device_id wiimote_hid_devices[] = {
USB_DEVICE_ID_NINTENDO_WIIMOTE2) }, USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
{ } { }
}; };
bool wiimote_dpad_as_analog = false;
module_param_named(dpad_as_analog, wiimote_dpad_as_analog, bool, 0644);
MODULE_PARM_DESC(dpad_as_analog, "Use D-Pad as main analog input");
MODULE_DEVICE_TABLE(hid, wiimote_hid_devices); MODULE_DEVICE_TABLE(hid, wiimote_hid_devices);
static struct hid_driver wiimote_hid_driver = { static struct hid_driver wiimote_hid_driver = {
......
...@@ -1088,12 +1088,28 @@ static void wiimod_classic_in_ext(struct wiimote_data *wdata, const __u8 *ext) ...@@ -1088,12 +1088,28 @@ static void wiimod_classic_in_ext(struct wiimote_data *wdata, const __u8 *ext)
* is the same as before. * is the same as before.
*/ */
static const s8 digital_to_analog[3] = {0x20, 0, -0x20};
if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) { if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
lx = ext[0] & 0x3e; if (wiimote_dpad_as_analog) {
ly = ext[1] & 0x3e; lx = digital_to_analog[1 - !(ext[4] & 0x80)
+ !(ext[1] & 0x01)];
ly = digital_to_analog[1 - !(ext[4] & 0x40)
+ !(ext[0] & 0x01)];
} else {
lx = (ext[0] & 0x3e) - 0x20;
ly = (ext[1] & 0x3e) - 0x20;
}
} else { } else {
lx = ext[0] & 0x3f; if (wiimote_dpad_as_analog) {
ly = ext[1] & 0x3f; lx = digital_to_analog[1 - !(ext[4] & 0x80)
+ !(ext[5] & 0x02)];
ly = digital_to_analog[1 - !(ext[4] & 0x40)
+ !(ext[5] & 0x01)];
} else {
lx = (ext[0] & 0x3f) - 0x20;
ly = (ext[1] & 0x3f) - 0x20;
}
} }
rx = (ext[0] >> 3) & 0x18; rx = (ext[0] >> 3) & 0x18;
...@@ -1110,19 +1126,13 @@ static void wiimod_classic_in_ext(struct wiimote_data *wdata, const __u8 *ext) ...@@ -1110,19 +1126,13 @@ static void wiimod_classic_in_ext(struct wiimote_data *wdata, const __u8 *ext)
rt <<= 1; rt <<= 1;
lt <<= 1; lt <<= 1;
input_report_abs(wdata->extension.input, ABS_HAT1X, lx - 0x20); input_report_abs(wdata->extension.input, ABS_HAT1X, lx);
input_report_abs(wdata->extension.input, ABS_HAT1Y, ly - 0x20); input_report_abs(wdata->extension.input, ABS_HAT1Y, ly);
input_report_abs(wdata->extension.input, ABS_HAT2X, rx - 0x20); input_report_abs(wdata->extension.input, ABS_HAT2X, rx - 0x20);
input_report_abs(wdata->extension.input, ABS_HAT2Y, ry - 0x20); input_report_abs(wdata->extension.input, ABS_HAT2Y, ry - 0x20);
input_report_abs(wdata->extension.input, ABS_HAT3X, rt); input_report_abs(wdata->extension.input, ABS_HAT3X, rt);
input_report_abs(wdata->extension.input, ABS_HAT3Y, lt); input_report_abs(wdata->extension.input, ABS_HAT3Y, lt);
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_RIGHT],
!(ext[4] & 0x80));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_DOWN],
!(ext[4] & 0x40));
input_report_key(wdata->extension.input, input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_LT], wiimod_classic_map[WIIMOD_CLASSIC_KEY_LT],
!(ext[4] & 0x20)); !(ext[4] & 0x20));
...@@ -1157,6 +1167,14 @@ static void wiimod_classic_in_ext(struct wiimote_data *wdata, const __u8 *ext) ...@@ -1157,6 +1167,14 @@ static void wiimod_classic_in_ext(struct wiimote_data *wdata, const __u8 *ext)
wiimod_classic_map[WIIMOD_CLASSIC_KEY_ZR], wiimod_classic_map[WIIMOD_CLASSIC_KEY_ZR],
!(ext[5] & 0x04)); !(ext[5] & 0x04));
if (!wiimote_dpad_as_analog) {
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_RIGHT],
!(ext[4] & 0x80));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_DOWN],
!(ext[4] & 0x40));
if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) { if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
input_report_key(wdata->extension.input, input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_LEFT], wiimod_classic_map[WIIMOD_CLASSIC_KEY_LEFT],
...@@ -1172,6 +1190,7 @@ static void wiimod_classic_in_ext(struct wiimote_data *wdata, const __u8 *ext) ...@@ -1172,6 +1190,7 @@ static void wiimod_classic_in_ext(struct wiimote_data *wdata, const __u8 *ext)
wiimod_classic_map[WIIMOD_CLASSIC_KEY_UP], wiimod_classic_map[WIIMOD_CLASSIC_KEY_UP],
!(ext[5] & 0x01)); !(ext[5] & 0x01));
} }
}
input_sync(wdata->extension.input); input_sync(wdata->extension.input);
} }
......
...@@ -162,6 +162,8 @@ struct wiimote_data { ...@@ -162,6 +162,8 @@ struct wiimote_data {
struct work_struct init_worker; struct work_struct init_worker;
}; };
extern bool wiimote_dpad_as_analog;
/* wiimote modules */ /* wiimote modules */
enum wiimod_module { enum wiimod_module {
......
...@@ -106,6 +106,11 @@ static inline bool ish_should_enter_d0i3(struct pci_dev *pdev) ...@@ -106,6 +106,11 @@ static inline bool ish_should_enter_d0i3(struct pci_dev *pdev)
return !pm_suspend_via_firmware() || pdev->device == CHV_DEVICE_ID; return !pm_suspend_via_firmware() || pdev->device == CHV_DEVICE_ID;
} }
static inline bool ish_should_leave_d0i3(struct pci_dev *pdev)
{
return !pm_resume_via_firmware() || pdev->device == CHV_DEVICE_ID;
}
/** /**
* ish_probe() - PCI driver probe callback * ish_probe() - PCI driver probe callback
* @pdev: pci device * @pdev: pci device
...@@ -215,9 +220,7 @@ static void __maybe_unused ish_resume_handler(struct work_struct *work) ...@@ -215,9 +220,7 @@ static void __maybe_unused ish_resume_handler(struct work_struct *work)
struct ishtp_device *dev = pci_get_drvdata(pdev); struct ishtp_device *dev = pci_get_drvdata(pdev);
int ret; int ret;
/* Check the NO_D3 flag to distinguish the resume paths */ if (ish_should_leave_d0i3(pdev) && !dev->suspend_flag) {
if (pdev->dev_flags & PCI_DEV_FLAGS_NO_D3) {
pdev->dev_flags &= ~PCI_DEV_FLAGS_NO_D3;
disable_irq_wake(pdev->irq); disable_irq_wake(pdev->irq);
ishtp_send_resume(dev); ishtp_send_resume(dev);
...@@ -281,8 +284,11 @@ static int __maybe_unused ish_suspend(struct device *device) ...@@ -281,8 +284,11 @@ static int __maybe_unused ish_suspend(struct device *device)
*/ */
ish_disable_dma(dev); ish_disable_dma(dev);
} else { } else {
/* Set the NO_D3 flag, the ISH would enter D0i3 */ /*
pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3; * Save state so PCI core will keep the device at D0,
* the ISH would enter D0i3
*/
pci_save_state(pdev);
enable_irq_wake(pdev->irq); enable_irq_wake(pdev->irq);
} }
......
...@@ -26,6 +26,7 @@ ...@@ -26,6 +26,7 @@
#include <linux/wait.h> #include <linux/wait.h>
#include <linux/workqueue.h> #include <linux/workqueue.h>
#include <linux/string.h> #include <linux/string.h>
#include <linux/timekeeping.h>
#include <linux/usb.h> #include <linux/usb.h>
...@@ -95,6 +96,18 @@ static int hid_start_in(struct hid_device *hid) ...@@ -95,6 +96,18 @@ static int hid_start_in(struct hid_device *hid)
set_bit(HID_NO_BANDWIDTH, &usbhid->iofl); set_bit(HID_NO_BANDWIDTH, &usbhid->iofl);
} else { } else {
clear_bit(HID_NO_BANDWIDTH, &usbhid->iofl); clear_bit(HID_NO_BANDWIDTH, &usbhid->iofl);
if (test_bit(HID_RESUME_RUNNING, &usbhid->iofl)) {
/*
* In case events are generated while nobody was
* listening, some are released when the device
* is re-opened. Wait 50 msec for the queue to
* empty before allowing events to go through
* hid.
*/
usbhid->input_start_time =
ktime_add_ms(ktime_get_coarse(), 50);
}
} }
} }
spin_unlock_irqrestore(&usbhid->lock, flags); spin_unlock_irqrestore(&usbhid->lock, flags);
...@@ -280,10 +293,14 @@ static void hid_irq_in(struct urb *urb) ...@@ -280,10 +293,14 @@ static void hid_irq_in(struct urb *urb)
if (!test_bit(HID_OPENED, &usbhid->iofl)) if (!test_bit(HID_OPENED, &usbhid->iofl))
break; break;
usbhid_mark_busy(usbhid); usbhid_mark_busy(usbhid);
if (!test_bit(HID_RESUME_RUNNING, &usbhid->iofl)) { if (test_bit(HID_RESUME_RUNNING, &usbhid->iofl)) {
if (ktime_before(ktime_get_coarse(),
usbhid->input_start_time))
break;
clear_bit(HID_RESUME_RUNNING, &usbhid->iofl);
}
hid_input_report(urb->context, HID_INPUT_REPORT, hid_input_report(urb->context, HID_INPUT_REPORT,
urb->transfer_buffer, urb->transfer_buffer, urb->actual_length, 1);
urb->actual_length, 1);
/* /*
* autosuspend refused while keys are pressed * autosuspend refused while keys are pressed
* because most keyboards don't wake up when * because most keyboards don't wake up when
...@@ -293,7 +310,6 @@ static void hid_irq_in(struct urb *urb) ...@@ -293,7 +310,6 @@ static void hid_irq_in(struct urb *urb)
set_bit(HID_KEYS_PRESSED, &usbhid->iofl); set_bit(HID_KEYS_PRESSED, &usbhid->iofl);
else else
clear_bit(HID_KEYS_PRESSED, &usbhid->iofl); clear_bit(HID_KEYS_PRESSED, &usbhid->iofl);
}
break; break;
case -EPIPE: /* stall */ case -EPIPE: /* stall */
usbhid_mark_busy(usbhid); usbhid_mark_busy(usbhid);
...@@ -720,17 +736,6 @@ static int usbhid_open(struct hid_device *hid) ...@@ -720,17 +736,6 @@ static int usbhid_open(struct hid_device *hid)
usb_autopm_put_interface(usbhid->intf); usb_autopm_put_interface(usbhid->intf);
/*
* In case events are generated while nobody was listening,
* some are released when the device is re-opened.
* Wait 50 msec for the queue to empty before allowing events
* to go through hid.
*/
if (res == 0)
msleep(50);
clear_bit(HID_RESUME_RUNNING, &usbhid->iofl);
Done: Done:
mutex_unlock(&usbhid->mutex); mutex_unlock(&usbhid->mutex);
return res; return res;
...@@ -1667,7 +1672,7 @@ struct usb_interface *usbhid_find_interface(int minor) ...@@ -1667,7 +1672,7 @@ struct usb_interface *usbhid_find_interface(int minor)
static int __init hid_init(void) static int __init hid_init(void)
{ {
int retval = -ENOMEM; int retval;
retval = hid_quirks_init(quirks_param, BUS_USB, MAX_USBHID_BOOT_QUIRKS); retval = hid_quirks_init(quirks_param, BUS_USB, MAX_USBHID_BOOT_QUIRKS);
if (retval) if (retval)
......
...@@ -13,6 +13,7 @@ ...@@ -13,6 +13,7 @@
#include <linux/types.h> #include <linux/types.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/ktime.h>
#include <linux/list.h> #include <linux/list.h>
#include <linux/mutex.h> #include <linux/mutex.h>
#include <linux/timer.h> #include <linux/timer.h>
...@@ -83,6 +84,7 @@ struct usbhid_device { ...@@ -83,6 +84,7 @@ struct usbhid_device {
struct mutex mutex; /* start/stop/open/close */ struct mutex mutex; /* start/stop/open/close */
spinlock_t lock; /* fifo spinlock */ spinlock_t lock; /* fifo spinlock */
unsigned long iofl; /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */ unsigned long iofl; /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */
ktime_t input_start_time; /* When to start handling input */
struct timer_list io_retry; /* Retry timer */ struct timer_list io_retry; /* Retry timer */
unsigned long stop_retry; /* Time to give up, in jiffies */ unsigned long stop_retry; /* Time to give up, in jiffies */
unsigned int retry_delay; /* Delay length in ms */ unsigned int retry_delay; /* Delay length in ms */
......
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