flywithu/Toyota-AVC-LAN
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Code Issues Releases Wiki Activity

Add muteing functionality and avoid unnecessary work when muted

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This commit is contained in:
Allen Hill 2023-10-25 14:10:42 -04:00
parent dea335af7f
commit b0b3d9f34e
3 changed files with 111 additions and 69 deletions
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165
src/avclandrv.c
View File

@ -309,13 +309,11 @@ void AVCLAN_init() {
loop_until_bit_is_clear(RTC_PITSTATUS, RTC_CTRLBUSY_bp); loop_until_bit_is_clear(RTC_PITSTATUS, RTC_CTRLBUSY_bp);
RTC.PITCTRLA = RTC_PERIOD_CYC32768_gc | RTC_PITEN_bm; RTC.PITCTRLA = RTC_PERIOD_CYC32768_gc | RTC_PITEN_bm;
// Set PA4 and PC0 as outputs
PORTA.DIRSET = PIN4_bm;
PORTC.DIRSET = PIN0_bm;
// Set bus output pins to idle // Set bus output pins to idle
AVC_SET_LOGICAL_1(); AVC_SET_LOGICAL_1();
AVCLAN_muteDevice(0); // unmute AVCLAN bus TX
answerReq = cm_Null; answerReq = cm_Null;
cd_status.cd1 = 1; cd_status.cd1 = 1;
@ -368,6 +366,33 @@ ISR(RTC_PIT_vect) {
RTC.PITINTFLAGS |= RTC_PI_bm; RTC.PITINTFLAGS |= RTC_PI_bm;
} }
// Mute device TX on AVCLAN bus
void AVCLAN_muteDevice(uint8_t mute) {
if (mute) {
// clang-format off
__asm__ __volatile__("cbi %[vporta_dir], 4; \n\t"
"cbi %[vportc_dir], 0; \n\t"
::
[vporta_dir] "I"(_SFR_IO_ADDR(VPORTA_DIR)),
[vportc_dir] "I"(_SFR_IO_ADDR(VPORTC_DIR)));
// clang-format on
} else {
// clang-format off
__asm__ __volatile__("sbi %[vporta_dir], 4; \n\t"
"sbi %[vportc_dir], 0; \n\t"
::
[vporta_dir] "I"(_SFR_IO_ADDR(VPORTA_DIR)),
[vportc_dir] "I"(_SFR_IO_ADDR(VPORTC_DIR)));
// clang-format on
}
}
// Returns true if device TX is muted on AVCLAN bus
uint8_t AVCLAN_ismuted() {
return (((VPORTA_DIR & PIN4_bm) | (VPORTA_DIR & PIN0_bm)) == 0);
}
// Set AVC bus to `val` (logical 1 or 0) for `period` ticks of TCB1
void set_AVC_logic_for(uint8_t val, uint16_t period) { void set_AVC_logic_for(uint8_t val, uint16_t period) {
TCB1.CNT = 0; TCB1.CNT = 0;
if (val) { if (val) {
@ -646,7 +671,7 @@ uint8_t AVCLAN_readframe() {
} }
// is this command for me ? // is this command for me ?
for_me = (frame.peripheral_addr == CD_ID); for_me = !AVCLAN_ismuted() && (frame.peripheral_addr == CD_ID);
if (for_me) if (for_me)
AVCLAN_sendbit_ACK(); AVCLAN_sendbit_ACK();
@ -731,72 +756,75 @@ uint8_t AVCLAN_readframe() {
if (printAllFrames) if (printAllFrames)
AVCLAN_printframe(&frame, printBinary); AVCLAN_printframe(&frame, printBinary);
if (for_me) { if (!AVCLAN_ismuted()) {
if (CheckCmd(&frame, stat1, sizeof(stat1))) { if (for_me) {
answerReq = cm_Status1; if (CheckCmd(&frame, stat1, sizeof(stat1))) {
return 1; answerReq = cm_Status1;
} return 1;
if (CheckCmd(&frame, stat2, sizeof(stat2))) { }
answerReq = cm_Status2; if (CheckCmd(&frame, stat2, sizeof(stat2))) {
return 1; answerReq = cm_Status2;
} return 1;
if (CheckCmd(&frame, stat3, sizeof(stat3))) { }
answerReq = cm_Status3; if (CheckCmd(&frame, stat3, sizeof(stat3))) {
return 1; answerReq = cm_Status3;
} return 1;
if (CheckCmd(&frame, stat4, sizeof(stat4))) { }
answerReq = cm_Status4; if (CheckCmd(&frame, stat4, sizeof(stat4))) {
return 1; answerReq = cm_Status4;
} return 1;
// if (CheckCmd((uint8_t*)stat5)) { }
// answerReq = cm_Status5; // if (CheckCmd((uint8_t*)stat5)) {
// return 1; // answerReq = cm_Status5;
// } // return 1;
// }
if (CheckCmd(&frame, play_req1, sizeof(play_req1))) { if (CheckCmd(&frame, play_req1, sizeof(play_req1))) {
answerReq = cm_PlayReq1; answerReq = cm_PlayReq1;
return 1; return 1;
} }
if (CheckCmd(&frame, play_req2, sizeof(play_req2))) { if (CheckCmd(&frame, play_req2, sizeof(play_req2))) {
answerReq = cm_PlayReq2; answerReq = cm_PlayReq2;
return 1; return 1;
} }
if (CheckCmd(&frame, play_req3, sizeof(play_req3))) { if (CheckCmd(&frame, play_req3, sizeof(play_req3))) {
answerReq = cm_PlayReq3; answerReq = cm_PlayReq3;
return 1; return 1;
} }
if (CheckCmd(&frame, stop_req, sizeof(stop_req))) { if (CheckCmd(&frame, stop_req, sizeof(stop_req))) {
answerReq = cm_StopReq; answerReq = cm_StopReq;
return 1; return 1;
} }
if (CheckCmd(&frame, stop_req2, sizeof(stop_req2))) { if (CheckCmd(&frame, stop_req2, sizeof(stop_req2))) {
answerReq = cm_StopReq2; answerReq = cm_StopReq2;
return 1; return 1;
} }
} else { // broadcast check } else { // broadcast check
if (CheckCmd(&frame, lan_playit, sizeof(lan_playit))) { if (CheckCmd(&frame, lan_playit, sizeof(lan_playit))) {
answerReq = cm_PlayIt; answerReq = cm_PlayIt;
return 1; return 1;
} }
if (CheckCmd(&frame, lan_check, sizeof(lan_check))) { if (CheckCmd(&frame, lan_check, sizeof(lan_check))) {
answerReq = cm_Check; answerReq = cm_Check;
CMD_CHECK.data[4] = frame.data[3]; CMD_CHECK.data[4] = frame.data[3];
return 1; return 1;
} }
if (CheckCmd(&frame, lan_reg, sizeof(lan_reg))) { if (CheckCmd(&frame, lan_reg, sizeof(lan_reg))) {
answerReq = cm_Register; answerReq = cm_Register;
return 1; return 1;
} }
if (CheckCmd(&frame, lan_init, sizeof(lan_init))) { if (CheckCmd(&frame, lan_init, sizeof(lan_init))) {
answerReq = cm_Init; answerReq = cm_Init;
return 1; return 1;
} }
if (CheckCmd(&frame, lan_stat1, sizeof(lan_stat1))) { if (CheckCmd(&frame, lan_stat1, sizeof(lan_stat1))) {
answerReq = cm_Status1; answerReq = cm_Status1;
return 1; return 1;
}
} }
} }
answerReq = cm_Null; answerReq = cm_Null;
return 1; return 1;
} }
@ -839,6 +867,9 @@ AVCLAN_frame_t *AVCLAN_parseframe(const uint8_t *bytes, uint8_t len) {
} }
uint8_t AVCLAN_sendframe(const AVCLAN_frame_t *frame) { uint8_t AVCLAN_sendframe(const AVCLAN_frame_t *frame) {
if (AVCLAN_ismuted())
return 1;
STOPEvent; STOPEvent;
// wait for free line // wait for free line

5
src/avclandrv.h
View File

@ -120,7 +120,6 @@ typedef struct AVCLAN_KnownMessage_struct {
} AVCLAN_KnownMessage_t; } AVCLAN_KnownMessage_t;
typedef struct AVCLAN_frame_struct { typedef struct AVCLAN_frame_struct {
uint8_t valid;
MSG_TYPE_t broadcast; // 0 for broadcast messages MSG_TYPE_t broadcast; // 0 for broadcast messages
uint16_t controller_addr; // formerly "master" uint16_t controller_addr; // formerly "master"
uint16_t peripheral_addr; // formerly "slave" uint16_t peripheral_addr; // formerly "slave"
@ -129,6 +128,9 @@ typedef struct AVCLAN_frame_struct {
uint8_t *data; uint8_t *data;
} AVCLAN_frame_t; } AVCLAN_frame_t;
void AVCLAN_init();
void AVCLAN_muteDevice(uint8_t mute);
uint8_t AVCLAN_readframe(); uint8_t AVCLAN_readframe();
uint8_t AVCLAN_sendframe(const AVCLAN_frame_t *frame); uint8_t AVCLAN_sendframe(const AVCLAN_frame_t *frame);
@ -137,7 +139,6 @@ uint8_t AVCLAN_responseNeeded();
void AVCLAN_printframe(const AVCLAN_frame_t *frame, uint8_t binary); void AVCLAN_printframe(const AVCLAN_frame_t *frame, uint8_t binary);
AVCLAN_frame_t *AVCLAN_parseframe(const uint8_t *bytes, uint8_t len); AVCLAN_frame_t *AVCLAN_parseframe(const uint8_t *bytes, uint8_t len);
void AVCLAN_init();
void AVCLan_Send_Status(); void AVCLan_Send_Status();
void AVCLan_Register(); void AVCLan_Register();
uint8_t AVCLan_SendAnswer(); uint8_t AVCLan_SendAnswer();

10
src/sniffer.c
View File

@ -32,6 +32,7 @@
uint8_t echoCharacters; uint8_t echoCharacters;
uint8_t readBinary; uint8_t readBinary;
uint8_t muteBus;
uint8_t readkey; uint8_t readkey;
const char const *offon[] = {"OFF", "ON"}; const char const *offon[] = {"OFF", "ON"};
@ -143,6 +144,13 @@ int main() {
RS232_Print(offon[echoCharacters]); RS232_Print(offon[echoCharacters]);
RS232_Print("\n"); RS232_Print("\n");
break; break;
case 'm': // Mute mockingboard device on AVCLAN bus
muteBus ^= 1;
AVCLAN_muteDevice(muteBus);
RS232_Print("Mute device: ");
RS232_Print(offon[muteBus]);
RS232_Print("\n");
break;
case 'b': case 'b':
case 'B': // Beep case 'B': // Beep
// answerReq = cm_Beep; // answerReq = cm_Beep;
@ -277,9 +285,11 @@ void print_help() {
RS232_Print("S - read sequence\n" RS232_Print("S - read sequence\n"
"W - send command\n" "W - send command\n"
"Q - send broadcast\n" "Q - send broadcast\n"
"m - Toggle mute for mockingboard bus activity\n"
"l - Toggle message logging\n" "l - Toggle message logging\n"
"k - Toggle character echo\n" "k - Toggle character echo\n"
"R/r - register device\n" "R/r - register device\n"
"X/x - Turn binary ON or OFF, respectively\n"
"B - Beep\n" "B - Beep\n"
"v - Toggle verbose logging\n" "v - Toggle verbose logging\n"
#ifdef SOFTWARE_DEBUG #ifdef SOFTWARE_DEBUG