Commit Graph

22 Commits

Author SHA1 Message Date
morris
6c1d98d556 systimer: assign counter and alarm in esp_hw_support 2023-01-10 17:05:49 +08:00
KonstantinKondrashov
54b06ecb62 esp_timer: Fix the stop alarm triggering when the timer list is empty
Related to ESP32-C6 chip only because this chip can power down the digital domain
during the light sleep. And after wakes up, systimer gets resumed,
and the alarm value < count value, so it leads the alarm fired immediately.
We get one unnecessary interrupt at light sleep exit time.

Other chips do not power down the digital domain related to systimer.
2022-11-17 14:32:16 +00:00
morris
d94432fea8 systimer: refactor hal to accomodate more xtal choices 2022-07-25 16:08:52 +08:00
Jakob Hasse
1f75fc0aa1 bugfix (esp_timer): made os spinlock static 2022-07-19 15:35:32 +08:00
Ivan Grokhotkov
5b54ae76d4 esp_timer, hal: add support for non-integer systimer frequency
When ESP32-C2 is paired with a 26 MHz XTAL, the systimer tick
frequency becomes equal to 26 / 2.5 = 10.4 MHz. Previously we always
assumed that systimer tick frequency is integer (and 1 MHz * power of
two, above that!).
This commit introduces a new LL macro, SYSTIMER_LL_TICKS_PER_US_DIV.
It should be set in such a way that:

1. SYSTIMER_LL_TICKS_PER_US / SYSTIMER_LL_TICKS_PER_US_DIV equals the
   actual systimer tick frequency,
2. and SYSTIMER_LL_TICKS_PER_US is integer.

For ESP32-C2 this means that SYSTIMER_LL_TICKS_PER_US = 52 and
SYSTIMER_LL_TICKS_PER_US_DIV = 5.

This introduced two possible issues:

1. Overflow when multiplying systimer counter by 5
   - Should not be an issue, since systimer counter is 52-bit, so
     counter * 5 is no more than 55-bit.
2. The code needs to perform:
   - divide by 5: when converting from microseconds to ticks
   - divide by 52: when converting from ticks to microseconds
   The latter potentially introduces a performance issue for the
   esp_timer_get_time function.
2022-07-11 12:24:37 +08:00
jingli
30e7af2ffb system/sleep: simplify code for time compensation when wakeup from light sleep 2022-06-14 14:49:26 +08:00
songruo
60bb5c913d clk_tree: prework of introducing clk subsystem control
1. Clean up clk usage in IDF, replace rtc_clk_xtal/apb_freq_get with
   upper level API esp_clk_xtal/apb_freq
2. Fix small errors and wrong comments related to clock
3. Add clk_tree_defs.h to provide an unified clock id for each chip
   Modify the NGed drivers to adopt new clock ids
2022-04-11 12:09:06 +08:00
Cao Sen Miao
b0123199da esp_timer: init rtc timer and system timer in early init 2021-10-26 19:07:34 +08:00
Ivan Grokhotkov
249abb3fe8 esp_timer: allow querying the timer before esp_timer_init is called 2021-10-26 19:07:34 +08:00
Konstantin Kondrashov
29f581fc70 freertos(esp32s3): SysTick uses systimer 2021-08-04 20:33:44 +08:00
morris
988c88a6b1 systimer: optimise esp_timer_get_time 2021-04-26 11:54:02 +08:00
morris
ec898b771e systimer: strip hal driver 2021-04-22 21:08:39 +08:00
KonstantinKondrashov
63d4911cdb esp_timer: Add ESP_TIMER_ISR dispatch method
Using own spinlock for each list (TASK and ISR disp method)
Reduced the dependency of ISR on the TASK dispatch method
2021-02-08 19:10:11 +08:00
KonstantinKondrashov
bcbee89030 esp_timer: Add a Kconfig option to configure the interrupt level 2021-02-08 18:27:10 +08:00
Angus Gratton
7c08be5771 hal: Add initial ESP32-C3 support
From internal commit 7761d6e8
2020-11-30 15:23:15 +11:00
Michael (XIAO Xufeng)
1966f00f0b soc: updates caps usage
We should define caps as 1 if true. When use the caps macros, #if and
 #if ! should be used instead of #ifdef/#ifndef.
2020-10-17 16:10:17 +08:00
morris
61f89b97c6 bringup esp32-s3 on FPGA 2020-09-22 15:15:03 +08:00
Renz Bagaporo
e70f240e12 esp_timer: do init check in timer implementation 2020-09-01 15:01:11 +08:00
Renz Bagaporo
da88671491 esp_system: link time, not runtime, dependency on esp_timer 2020-08-11 17:52:36 +08:00
morris
890fc0fe67 esp_timer: alias esp_timer_get_time
alias esp_timer_get_time to improve performance
2020-04-01 16:51:43 +08:00
morris
2d1885b906 systimer: add HAL layer 2020-04-01 16:51:43 +08:00
Konstantin Kondrashov
739eb05bb9 esp32: add implementation of esp_timer based on TG0 LAC timer
Closes: IDF-979
2020-02-06 14:00:18 +08:00