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rahix authored
Multiple tasks might access the i2c bus simultaneously. To prevent
race conditions, this patch introduces a lock which tasks should
acquire before accessing the bus.
Signed-off-by: 
Rahix <rahix@rahix.de> modules.h 1.27 KiB
#ifndef MODULES_H
#define MODULES_H
/* ---------- FAT fs ------------------------------------------------------ */
/* Number of bits to use for indexing into our internal pool of files/directories
* This indirectly specifies the size of the pool as 1^EPIC_FAT_FD_INDEX_BITS
* Increase if number of open file descriptors is not enough, but be aware of
* memory usage of the pool!
*/
#define EPIC_FAT_FD_INDEX_BITS 8
#define EPIC_FAT_STATIC_SEMAPHORE 1
void fatfs_init(void);
/* ---------- Serial ------------------------------------------------------- */
#define SERIAL_READ_BUFFER_SIZE 128
void vSerialTask(void *pvParameters);
/* ---------- PMIC --------------------------------------------------------- */
/* In 1/10s */
#define PMIC_PRESS_SLEEP 20
#define PMIC_PRESS_POWEROFF 40
void vPmicTask(void *pvParameters);
/* ---------- BHI160 ------------------------------------------------------- */
#define BHI160_FIFO_SIZE 128
#define BHI160_MUTEX_WAIT_MS 50
void vBhi160Task(void *pvParameters);
/* ---------- I2C ---------------------------------------------------------- */
int i2c_init(void);
int i2c_lock(void);
void i2c_unlock(void);
// Forces an unlock of the display. Only to be used in epicardium
void disp_forcelock();
#endif /* MODULES_H */