michaelh/zephyr
1
0
Fork 0
Code Releases Activity

drivers: flash: esp32xx: use K_NO_WAIT when in ISR

Browse source 
Avoid timeout when taking semaphores in ISR.

This enables flash operations inside interrupted context
such as exceptions, allowing operations like saving core
dump to flash for instance.

Signed-off-by: Lucas Tamborrino <lucas.tamborrino@espressif.com>
This commit is contained in:
Lucas Tamborrino 2023-05-19 16:07:29 -03:00 • committed by Anas Nashif
commit 8acedc61d1
1 changed files with 3 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

4
drivers/flash/flash_esp32.c
View file

@ -57,6 +57,8 @@
#include <zephyr/logging/log.h> #include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(flash_esp32, CONFIG_FLASH_LOG_LEVEL); LOG_MODULE_REGISTER(flash_esp32, CONFIG_FLASH_LOG_LEVEL);
#define FLASH_SEM_TIMEOUT (k_is_in_isr() ? K_NO_WAIT : K_FOREVER)
struct flash_esp32_dev_config { struct flash_esp32_dev_config {
spi_dev_t *controller; spi_dev_t *controller;
}; };
@ -77,7 +79,7 @@ static inline void flash_esp32_sem_take(const struct device *dev)
{ {
struct flash_esp32_dev_data *data = dev->data; struct flash_esp32_dev_data *data = dev->data;
k_sem_take(&data->sem, K_FOREVER); k_sem_take(&data->sem, FLASH_SEM_TIMEOUT);
} }
static inline void flash_esp32_sem_give(const struct device *dev) static inline void flash_esp32_sem_give(const struct device *dev)