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#ifndef VALVES_H_
#define VALVES_H_
#include "util.h"
#include "main.h"
#include <stdint.h>
/* Global valves state */
enum valves_global_state {
VALVES_IDLE,
VALVES_FLOW_IN,
VALVES_FLOW_OUT,
};
/* State for one valve. */
enum valve_state {
VALVE_STATE_IDLE,
VALVE_STATE_12,
VALVE_STATE_14,
};
struct valves {
uint16_t ddr; /* DDRx */
uint16_t port; /* PORTx */
uint8_t bit_0_14; /* Valve 0: Pin for valve position 14 */
uint8_t bit_0_12; /* Valve 0: Pin for valve position 12 */
uint8_t bit_1_14; /* Valve 1: Pin for valve position 14 */
uint8_t bit_1_12; /* Valve 1: Pin for valve position 12 */
uint8_t current_global_state; /* enum valves_global_state */
bool need_switch_to_idle; /* Need transition to VALVE_STATE_IDLE. */
jiffies_t switch_to_idle_time; /* Deadline for VALVE_STATE_IDLE transition. */
};
#define DEFINE_VALVE(name, portid, bit0_14, bit0_12, bit1_14, bit1_12) \
struct valves name = { \
.ddr = _SFR_ADDR(DDR##portid), \
.port = _SFR_ADDR(PORT##portid), \
.bit_0_14 = bit0_14, \
.bit_0_12 = bit0_12, \
.bit_1_14 = bit1_14, \
.bit_1_12 = bit1_12, \
}
#define VALVE_TOGGLE_MSEC 10
/* Wait for the valve to toggle from one position to another. */
static inline void valve_wait_toggle(struct valves *v)
{
mdelay(VALVE_TOGGLE_MSEC);
}
void valves_init(struct valves *v);
void valves_work(struct valves *v);
void valves_emergency_state(struct valves *v);
void valves_shutdown(struct valves *v);
void valves_global_switch(struct valves *v, uint8_t global_state);
void __valves_global_switch(struct valves *v, uint8_t global_state);
static inline void valves_disarm_auto_idle(struct valves *v)
{
v->need_switch_to_idle = 0;
}
static inline uint8_t valves_get_global_state(struct valves *v)
{
return v->current_global_state;
}
void valve0_switch(struct valves *v, uint8_t state);
void valve1_switch(struct valves *v, uint8_t state);
#endif /* VALVES_H_ */
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