diff options
Diffstat (limited to 'drivers/staging/mei/wd.c')
| -rw-r--r-- | drivers/staging/mei/wd.c | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/drivers/staging/mei/wd.c b/drivers/staging/mei/wd.c index ffca7ca32658..8094941a98f1 100644 --- a/drivers/staging/mei/wd.c +++ b/drivers/staging/mei/wd.c @@ -35,12 +35,16 @@ const u8 mei_wd_state_independence_msg[3][4] = { {0x07, 0x02, 0x01, 0x10} }; +/* + * AMT Watchdog Device + */ +#define INTEL_AMT_WATCHDOG_ID "INTCAMT" + /* UUIDs for AMT F/W clients */ const uuid_le mei_wd_guid = UUID_LE(0x05B79A6F, 0x4628, 0x4D7F, 0x89, 0x9D, 0xA9, 0x15, 0x14, 0xCB, 0x32, 0xAB); - void mei_wd_set_start_timeout(struct mei_device *dev, u16 timeout) { dev_dbg(&dev->pdev->dev, "timeout=%d.\n", timeout); @@ -331,14 +335,14 @@ static int mei_wd_ops_set_timeout(struct watchdog_device *wd_dev, unsigned int t /* * Watchdog Device structs */ -const struct watchdog_ops wd_ops = { +static const struct watchdog_ops wd_ops = { .owner = THIS_MODULE, .start = mei_wd_ops_start, .stop = mei_wd_ops_stop, .ping = mei_wd_ops_ping, .set_timeout = mei_wd_ops_set_timeout, }; -const struct watchdog_info wd_info = { +static const struct watchdog_info wd_info = { .identity = INTEL_AMT_WATCHDOG_ID, .options = WDIOF_KEEPALIVEPING, }; @@ -352,3 +356,25 @@ struct watchdog_device amt_wd_dev = { }; +void mei_watchdog_register(struct mei_device *dev) +{ + dev_dbg(&dev->pdev->dev, "dev->wd_timeout =%d.\n", dev->wd_timeout); + + dev->wd_due_counter = !!dev->wd_timeout; + + if (watchdog_register_device(&amt_wd_dev)) { + dev_err(&dev->pdev->dev, "unable to register watchdog device.\n"); + dev->wd_interface_reg = false; + } else { + dev_dbg(&dev->pdev->dev, "successfully register watchdog interface.\n"); + dev->wd_interface_reg = true; + } +} + +void mei_watchdog_unregister(struct mei_device *dev) +{ + if (dev->wd_interface_reg) + watchdog_unregister_device(&amt_wd_dev); + dev->wd_interface_reg = false; +} + |