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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1afd01db1a
This adds trace events for the recently introduced waveform callbacks. With the introduction of some helper macros consistency among the different events is ensured. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Link: https://lore.kernel.org/r/1d71879b0de3bf01459c7a9d0f040d43eb5ace56.1726819463.git.u.kleine-koenig@baylibre.com Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
179 lines
3.8 KiB
C
179 lines
3.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM pwm
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#if !defined(_TRACE_PWM_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_PWM_H
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#include <linux/pwm.h>
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#include <linux/tracepoint.h>
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#define TP_PROTO_pwm(args...) \
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TP_PROTO(struct pwm_device *pwm, args)
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#define TP_ARGS_pwm(args...) \
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TP_ARGS(pwm, args)
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#define TP_STRUCT__entry_pwm(args...) \
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TP_STRUCT__entry( \
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__field(unsigned int, chipid) \
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__field(unsigned int, hwpwm) \
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args)
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#define TP_fast_assign_pwm(args...) \
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TP_fast_assign( \
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__entry->chipid = pwm->chip->id; \
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__entry->hwpwm = pwm->hwpwm; \
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args)
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#define TP_printk_pwm(fmt, args...) \
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TP_printk("pwmchip%u.%u: " fmt, __entry->chipid, __entry->hwpwm, args)
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#define __field_pwmwf(wf) \
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__field(u64, wf ## _period_length_ns) \
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__field(u64, wf ## _duty_length_ns) \
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__field(u64, wf ## _duty_offset_ns) \
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#define fast_assign_pwmwf(wf) \
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__entry->wf ## _period_length_ns = wf->period_length_ns; \
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__entry->wf ## _duty_length_ns = wf->duty_length_ns; \
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__entry->wf ## _duty_offset_ns = wf->duty_offset_ns
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#define printk_pwmwf_format(wf) \
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"%lld/%lld [+%lld]"
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#define printk_pwmwf_formatargs(wf) \
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__entry->wf ## _duty_length_ns, __entry->wf ## _period_length_ns, __entry->wf ## _duty_offset_ns
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TRACE_EVENT(pwm_round_waveform_tohw,
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TP_PROTO_pwm(const struct pwm_waveform *wf, void *wfhw, int err),
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TP_ARGS_pwm(wf, wfhw, err),
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TP_STRUCT__entry_pwm(
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__field_pwmwf(wf)
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__field(void *, wfhw)
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__field(int, err)
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),
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TP_fast_assign_pwm(
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fast_assign_pwmwf(wf);
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__entry->wfhw = wfhw;
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__entry->err = err;
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),
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TP_printk_pwm(printk_pwmwf_format(wf) " > %p err=%d",
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printk_pwmwf_formatargs(wf), __entry->wfhw, __entry->err)
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);
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TRACE_EVENT(pwm_round_waveform_fromhw,
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TP_PROTO_pwm(const void *wfhw, struct pwm_waveform *wf, int err),
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TP_ARGS_pwm(wfhw, wf, err),
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TP_STRUCT__entry_pwm(
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__field(const void *, wfhw)
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__field_pwmwf(wf)
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__field(int, err)
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),
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TP_fast_assign_pwm(
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__entry->wfhw = wfhw;
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fast_assign_pwmwf(wf);
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__entry->err = err;
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),
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TP_printk_pwm("%p > " printk_pwmwf_format(wf) " err=%d",
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__entry->wfhw, printk_pwmwf_formatargs(wf), __entry->err)
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);
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TRACE_EVENT(pwm_read_waveform,
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TP_PROTO_pwm(void *wfhw, int err),
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TP_ARGS_pwm(wfhw, err),
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TP_STRUCT__entry_pwm(
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__field(void *, wfhw)
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__field(int, err)
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),
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TP_fast_assign_pwm(
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__entry->wfhw = wfhw;
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__entry->err = err;
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),
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TP_printk_pwm("%p err=%d",
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__entry->wfhw, __entry->err)
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);
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TRACE_EVENT(pwm_write_waveform,
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TP_PROTO_pwm(const void *wfhw, int err),
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TP_ARGS_pwm(wfhw, err),
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TP_STRUCT__entry_pwm(
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__field(const void *, wfhw)
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__field(int, err)
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),
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TP_fast_assign_pwm(
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__entry->wfhw = wfhw;
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__entry->err = err;
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),
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TP_printk_pwm("%p err=%d",
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__entry->wfhw, __entry->err)
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);
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DECLARE_EVENT_CLASS(pwm,
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TP_PROTO(struct pwm_device *pwm, const struct pwm_state *state, int err),
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TP_ARGS(pwm, state, err),
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TP_STRUCT__entry_pwm(
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__field(u64, period)
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__field(u64, duty_cycle)
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__field(enum pwm_polarity, polarity)
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__field(bool, enabled)
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__field(int, err)
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),
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TP_fast_assign_pwm(
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__entry->period = state->period;
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__entry->duty_cycle = state->duty_cycle;
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__entry->polarity = state->polarity;
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__entry->enabled = state->enabled;
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__entry->err = err;
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),
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TP_printk_pwm("period=%llu duty_cycle=%llu polarity=%d enabled=%d err=%d",
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__entry->period, __entry->duty_cycle,
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__entry->polarity, __entry->enabled, __entry->err)
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);
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DEFINE_EVENT(pwm, pwm_apply,
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TP_PROTO(struct pwm_device *pwm, const struct pwm_state *state, int err),
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TP_ARGS(pwm, state, err)
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);
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DEFINE_EVENT(pwm, pwm_get,
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TP_PROTO(struct pwm_device *pwm, const struct pwm_state *state, int err),
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TP_ARGS(pwm, state, err)
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);
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#endif /* _TRACE_PWM_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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