zephyr
/
esp-idf
mirror of https://github.com/zephyrproject-rtos/esp-idf.git
1
0
Fork 0
Code Issues Releases Wiki Activity

pm: support for tracing using GPIOs

This commit is contained in:
Ivan Grokhotkov 2017-09-22 23:26:09 +08:00
parent 535695f0b9
commit 3f818f4862
4 changed files with 115 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
components/esp32/pm_trace.c Normal file
View File

@ -0,0 +1,51 @@
// Copyright 2016-2017 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "pm_trace.h"
#include "driver/gpio.h"
#include "soc/gpio_reg.h"
/* GPIOs to use for tracing of esp_pm events.
* Two entries in the array for each type, one for each CPU.
* Feel free to change when debugging.
*/
static const int DRAM_ATTR s_trace_io[] = {
BIT(4), BIT(5), // ESP_PM_TRACE_IDLE
BIT(16), BIT(17), // ESP_PM_TRACE_TICK
BIT(18), BIT(18), // ESP_PM_TRACE_FREQ_SWITCH
BIT(19), BIT(19), // ESP_PM_TRACE_CCOMPARE_UPDATE
BIT(25), BIT(26), // ESP_PM_TRACE_ISR_HOOK
};
void esp_pm_trace_init()
{
for (size_t i = 0; i < sizeof(s_trace_io)/sizeof(s_trace_io[0]); ++i) {
int io = __builtin_ffs(s_trace_io[i]);
if (io == 0) {
continue;
}
gpio_set_direction(io - 1, GPIO_MODE_OUTPUT);
}
}
void IRAM_ATTR esp_pm_trace_enter(esp_pm_trace_event_t event, int core_id)
{
REG_WRITE(GPIO_OUT_W1TS_REG, s_trace_io[2 * event + core_id]);
}
void IRAM_ATTR esp_pm_trace_exit(esp_pm_trace_event_t event, int core_id)
{
REG_WRITE(GPIO_OUT_W1TC_REG, s_trace_io[2 * event + core_id]);
}

44
components/esp32/pm_trace.h Normal file
View File

@ -0,0 +1,44 @@
// Copyright 2016-2017 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include "sdkconfig.h"
typedef enum {
ESP_PM_TRACE_IDLE,
ESP_PM_TRACE_TICK,
ESP_PM_TRACE_FREQ_SWITCH,
ESP_PM_TRACE_CCOMPARE_UPDATE,
ESP_PM_TRACE_ISR_HOOK,
ESP_PM_TRACE_TYPE_MAX
} esp_pm_trace_event_t;
void esp_pm_trace_init();
void esp_pm_trace_enter(esp_pm_trace_event_t event, int core_id);
void esp_pm_trace_exit(esp_pm_trace_event_t event, int core_id);
#ifdef CONFIG_PM_TRACE
#define ESP_PM_TRACE_ENTER(event, core_id) \
esp_pm_trace_enter(ESP_PM_TRACE_ ## event, core_id)
#define ESP_PM_TRACE_EXIT(event, core_id) \
esp_pm_trace_exit(ESP_PM_TRACE_ ## event, core_id)
#else // CONFIG_PM_TRACE
#define ESP_PM_TRACE_ENTER(type, core_id) do { (void) core_id; } while(0);
#define ESP_PM_TRACE_EXIT(type, core_id) do { (void) core_id; } while(0);
#endif // CONFIG_PM_TRACE

13
components/freertos/portasm.S
View File

@ -24,6 +24,7 @@
*/
#include "xtensa_rtos.h"
#include "sdkconfig.h"
#define TOPOFSTACK_OFFS 0x00 /* StackType_t *pxTopOfStack */
#define CP_TOPOFSTACK_OFFS 0x04 /* xMPU_SETTINGS.coproc_area */
@ -269,6 +270,12 @@ _frxt_timer_int:
ENTRY(16)
#ifdef CONFIG_PM_TRACE
movi a6, 1 /* = ESP_PM_TRACE_TICK */
getcoreid a7
call4 esp_pm_trace_enter
#endif // CONFIG_PM_TRACE
.L_xt_timer_int_catchup:
/* Update the timer comparator for the next tick. */
@ -308,6 +315,12 @@ _frxt_timer_int:
sub a4, a4, a3 /* diff = ccount - old comparator */
blt a2, a4, .L_xt_timer_int_catchup /* repeat while diff > divisor */
#ifdef CONFIG_PM_TRACE
movi a6, 1 /* = ESP_PM_TRACE_TICK */
getcoreid a7
call4 esp_pm_trace_exit
#endif // CONFIG_PM_TRACE
RET(16)
/*

8
components/freertos/xtensa_vectors.S
View File

@ -175,7 +175,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
NOTE: For CALL0 ABI, a12-a15 have not yet been saved.
NOTE: This macro will use registers a0 and a2-a6. The arguments are:
NOTE: This macro will use registers a0 and a2-a7. The arguments are:
level -- interrupt level
mask -- interrupt bitmask for this level
--------------------------------------------------------------------------------
@ -183,6 +183,12 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
.macro dispatch_c_isr level mask
#ifdef CONFIG_PM_TRACE
movi a6, 0 /* = ESP_PM_TRACE_IDLE */
getcoreid a7
call4 esp_pm_trace_exit
#endif // CONFIG_PM_TRACE
/* Get mask of pending, enabled interrupts at this level into a2. */
.L_xt_user_int_&level&: