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Cache UHK module state variables and only tranfer them when changed.

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This commit is contained in:
László Monda
2017-09-28 01:30:27 +02:00
parent 5769f66994
commit d4124d8331
1 changed files with 29 additions and 12 deletions
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41
right/src/slave_drivers/uhk_module_driver.c
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@@ -9,6 +9,7 @@
#include "crc16.h" #include "crc16.h"
uhk_module_state_t UhkModuleStates[UHK_MODULE_MAX_COUNT]; uhk_module_state_t UhkModuleStates[UHK_MODULE_MAX_COUNT];
static uhk_module_state_t UhkModuleTargetStates[UHK_MODULE_MAX_COUNT];
uhk_module_phase_t uhkModulePhase = UhkModulePhase_RequestKeyStates; uhk_module_phase_t uhkModulePhase = UhkModulePhase_RequestKeyStates;
i2c_message_t rxMessage; i2c_message_t rxMessage;
@@ -24,15 +25,21 @@ status_t rx() {
void UhkModuleSlaveDriver_Init(uint8_t uhkModuleId) void UhkModuleSlaveDriver_Init(uint8_t uhkModuleId)
{ {
uhk_module_state_t* uhkModuleState = UhkModuleStates + uhkModuleId; uhk_module_state_t* uhkModuleSourceState = UhkModuleStates + uhkModuleId;
uhkModuleState->isTestLedOn = true; uhk_module_state_t* uhkModuleTargetState = UhkModuleTargetStates + uhkModuleId;
uhkModuleState->ledPwmBrightness = 0x64;
uhkModuleSourceState->isTestLedOn = true;
uhkModuleTargetState->isTestLedOn = false;
uhkModuleSourceState->ledPwmBrightness = 0x64;
uhkModuleTargetState->ledPwmBrightness = 0;
} }
status_t UhkModuleSlaveDriver_Update(uint8_t uhkModuleId) status_t UhkModuleSlaveDriver_Update(uint8_t uhkModuleId)
{ {
status_t status = kStatus_Uhk_IdleSlave; status_t status = kStatus_Uhk_IdleSlave;
uhk_module_state_t *uhkModuleInternalState = UhkModuleStates + uhkModuleId; uhk_module_state_t *uhkModuleSourceState = UhkModuleStates + uhkModuleId;
uhk_module_state_t *uhkModuleTargetState = UhkModuleTargetStates + uhkModuleId;
switch (uhkModulePhase) { switch (uhkModulePhase) {
case UhkModulePhase_RequestKeyStates: case UhkModulePhase_RequestKeyStates:
@@ -53,17 +60,27 @@ status_t UhkModuleSlaveDriver_Update(uint8_t uhkModuleId)
uhkModulePhase = UhkModulePhase_SetTestLed; uhkModulePhase = UhkModulePhase_SetTestLed;
break; break;
case UhkModulePhase_SetTestLed: case UhkModulePhase_SetTestLed:
txMessage.data[0] = SlaveCommand_SetTestLed; if (uhkModuleSourceState->isTestLedOn == uhkModuleTargetState->isTestLedOn) {
txMessage.data[1] = uhkModuleInternalState->isTestLedOn; status = kStatus_Uhk_NoOp;
txMessage.length = 2; } else {
status = tx(); txMessage.data[0] = SlaveCommand_SetTestLed;
txMessage.data[1] = uhkModuleSourceState->isTestLedOn;
txMessage.length = 2;
status = tx();
uhkModuleTargetState->isTestLedOn = uhkModuleSourceState->isTestLedOn;
}
uhkModulePhase = UhkModulePhase_SetLedPwmBrightness; uhkModulePhase = UhkModulePhase_SetLedPwmBrightness;
break; break;
case UhkModulePhase_SetLedPwmBrightness: case UhkModulePhase_SetLedPwmBrightness:
txMessage.data[0] = SlaveCommand_SetLedPwmBrightness; if (uhkModuleSourceState->ledPwmBrightness == uhkModuleTargetState->ledPwmBrightness) {
txMessage.data[1] = uhkModuleInternalState->ledPwmBrightness; status = kStatus_Uhk_NoOp;
txMessage.length = 2; } else {
status = tx(); txMessage.data[0] = SlaveCommand_SetLedPwmBrightness;
txMessage.data[1] = uhkModuleSourceState->ledPwmBrightness;
txMessage.length = 2;
status = tx();
uhkModuleTargetState->ledPwmBrightness = uhkModuleSourceState->ledPwmBrightness;
}
uhkModulePhase = UhkModulePhase_RequestKeyStates; uhkModulePhase = UhkModulePhase_RequestKeyStates;
break; break;
} }