diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mld/ptp.h')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mld/ptp.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mld/ptp.h b/drivers/net/wireless/intel/iwlwifi/mld/ptp.h new file mode 100644 index 000000000000..f3d18dd304e5 --- /dev/null +++ b/drivers/net/wireless/intel/iwlwifi/mld/ptp.h @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* + * Copyright (C) 2025 Intel Corporation + */ +#ifndef __iwl_mld_ptp_h__ +#define __iwl_mld_ptp_h__ + +#include <linux/ptp_clock_kernel.h> + +/** + * struct ptp_data - PTP hardware clock data + * + * @ptp_clock: struct ptp_clock pointer returned by the ptp_clock_register() + * function. + * @ptp_clock_info: struct ptp_clock_info that describes a PTP hardware clock + * @lock: protects the time adjustments data + * @delta: delta between hardware clock and ptp clock in nanoseconds + * @scale_update_gp2: GP2 time when the scale was last updated + * @scale_update_adj_time_ns: adjusted time when the scale was last updated, + * in nanoseconds + * @scaled_freq: clock frequency offset, scaled to 65536000000 + * @last_gp2: the last GP2 reading from the hardware, used for tracking GP2 + * wraparounds + * @wrap_counter: number of wraparounds since scale_update_adj_time_ns + * @dwork: worker scheduled every 1 hour to detect workarounds + */ +struct ptp_data { + struct ptp_clock *ptp_clock; + struct ptp_clock_info ptp_clock_info; + + spinlock_t lock; + s64 delta; + u32 scale_update_gp2; + u64 scale_update_adj_time_ns; + u64 scaled_freq; + u32 last_gp2; + u32 wrap_counter; + struct delayed_work dwork; +}; + +void iwl_mld_ptp_init(struct iwl_mld *mld); +void iwl_mld_ptp_remove(struct iwl_mld *mld); +u64 iwl_mld_ptp_get_adj_time(struct iwl_mld *mld, u64 base_time_ns); + +#endif /* __iwl_mld_ptp_h__ */ |