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revert hardware_clocks change as now unused

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This commit is contained in:
graham sanderson 2023-01-25 18:34:58 -06:00
parent abb0d35cc8
commit b9953fa3b7
2 changed files with 2 additions and 16 deletions
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9
src/rp2_common/hardware_clocks/clocks.c
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@ -216,10 +216,6 @@ void clock_set_reported_hz(enum clock_index clk_index, uint hz) {
/// \tag::frequency_count_khz[]
uint32_t frequency_count_khz(uint src) {
return frequency_count_raw(src, clock_get_hz(clk_ref) / 1000) >> CLOCKS_FC0_RESULT_KHZ_LSB;
}
uint32_t frequency_count_raw(uint src, uint ref_khz) {
fc_hw_t *fc = &clocks_hw->fc0;
// If frequency counter is running need to wait for it. It runs even if the source is NULL
@ -228,7 +224,7 @@ uint32_t frequency_count_raw(uint src, uint ref_khz) {
}
// Set reference freq
fc->ref_khz = ref_khz;
fc->ref_khz = clock_get_hz(clk_ref) / 1000;
// FIXME: Don't pick random interval. Use best interval
fc->interval = 10;
@ -245,11 +241,10 @@ uint32_t frequency_count_raw(uint src, uint ref_khz) {
}
// Return the result
return fc->result;
return fc->result >> CLOCKS_FC0_RESULT_KHZ_LSB;
}
/// \end::frequency_count_khz[]
static void clocks_handle_resus(void) {
// Set clk_sys back to the ref clock rather than it being forced to clk_ref
// by resus. Call the user's resus callback if they have set one

9
src/rp2_common/hardware_clocks/include/hardware/clocks.h
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@ -137,15 +137,6 @@ uint32_t clock_get_hz(enum clock_index clk_index);
*/
uint32_t frequency_count_khz(uint src);
/*! \brief Measure a clocks frequency using the Frequency counter, returning the raw register value
* \ingroup hardware_clocks
*
* Uses the inbuilt frequency counter to measure the specified clocks frequency.
*
* \return the value of the CLOCKS_FC0_RESULT register
*/
uint32_t frequency_count_raw(uint src, uint ref_khz);
/*! \brief Set the "current frequency" of the clock as reported by clock_get_hz without actually changing the clock
* \ingroup hardware_clocks
*