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

More reorganization [nfc]

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This commit is contained in:
Allen Hill 2023-09-02 22:18:11 -04:00
parent 9581957eca
commit b9bae7a65f
3 changed files with 44 additions and 133 deletions
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114
src/avclandrv.c
View File

@ -215,17 +215,18 @@ void AVC_ReleaseLine() {
AVC_OUT_DIS(); AVC_OUT_DIS();
} }
void AVCLan_Init() { void AVCLAN_init() {
PORTA.PIN6CTRL = PORT_ISC_INPUT_DISABLE_gc; // Disable input buffer;
PORTA.PIN7CTRL = PORT_ISC_INPUT_DISABLE_gc; // recommended when using AC
// Pull-ups are disabled by default // Pull-ups are disabled by default
// Set pin 6 and 7 as input // Set pin 6 and 7 as input
PORTA.DIRCLR = (PIN6_bm | PIN7_bm); PORTA.DIRCLR = (PIN6_bm | PIN7_bm);
PORTA.PIN6CTRL = PORT_ISC_INPUT_DISABLE_gc; // Disable input buffer;
PORTA.PIN7CTRL = PORT_ISC_INPUT_DISABLE_gc; // recommended when using AC
// Analog comparator // Analog comparator config
AC2.CTRLA = AC_OUTEN_bm | AC_HYSMODE_25mV_gc | AC_ENABLE_bm; AC2.CTRLA = AC_OUTEN_bm | AC_HYSMODE_25mV_gc | AC_ENABLE_bm;
PORTB.DIRSET = PIN2_bm; // Enable AC2 OUT for LED
PORTB.DIRSET = PIN2_bm; // Enable AC2 OUT for LED
PORTB.PIN2CTRL = PORT_ISC_INPUT_DISABLE_gc; // Output only
TCB1.CTRLB = TCB_ASYNC_bm | TCB_CNTMODE_SINGLE_gc; TCB1.CTRLB = TCB_ASYNC_bm | TCB_CNTMODE_SINGLE_gc;
TCB1.EVCTRL = TCB_CAPTEI_bm; TCB1.EVCTRL = TCB_CAPTEI_bm;
@ -653,111 +654,12 @@ uint8_t AVCLAN_sendframe(const AVCLAN_frame_t *frame) {
AVC_OUT_DIS(); AVC_OUT_DIS();
STARTEvent; STARTEvent;
if (showLog) if (printAllFrames)
AVCLAN_printframe(frame); AVCLAN_printframe(frame);
return 0; return 0;
} }
// uint8_t AVCLan_SendDataBroadcast() {
// uint8_t i;
// STOPEvent;
// // wait for free line
// uint8_t line_busy = 1;
// TCB1.CNT = 0;
// do {
// while (INPUT_IS_CLEAR) {
// if (TCB1.CNT >= 900)
// break;
// }
// if (TCB1.CNT > 864)
// line_busy = 0;
// } while (line_busy);
// AVC_OUT_EN();
// AVCLan_Send_StartBit();
// uint8_t broadcast_control = 0x0;
// AVCLAN_sendbits(&broadcast_control, 1); // broadcast
// uint8_t parity = 0;
// AVCLAN_sendbits(&CD_ID, 12); // CD Changer ID as sender
// AVCLan_Send_ParityBit(parity);
// uint16_t audio_addr = 0x1FF;
// AVCLAN_sendbits(&audio_addr, 12); // all audio devices
// AVCLan_Send_ParityBit(parity);
// AVCLan_Send_Bit1();
// broadcast_control = 0xF;
// AVCLAN_sendbits(&broadcast_control, 4); // 0xf - control -> COMMAND WRITE
// AVCLan_Send_ParityBit(parity);
// AVCLan_Send_Bit1();
// AVCLAN_sendbyte(&data_len); // data lenght
// AVCLan_Send_ParityBit(parity);
// AVCLan_Send_Bit1();
// for (i = 0; i < data_len; i++) {
// AVCLAN_sendbyte(&data[i]); // data uint8_t
// AVCLan_Send_ParityBit(parity);
// AVCLan_Send_Bit1();
// }
// AVC_OUT_DIS();
// STARTEvent;
// if (showLog)
// ShowOutMessage();
// return 0;
// }
// uint8_t AVCLan_SendAnswerFrame(const uint8_t *cmd) {
// uint8_t i;
// uint8_t b;
// b = *cmd++;
// data_control = 0xF;
// data_len = *cmd++;
// for (i = 0; i < data_len; i++) {
// data[i] = *cmd++;
// }
// if (b)
// return AVCLan_SendData();
// else
// return AVCLan_SendDataBroadcast();
// }
// uint8_t AVCLan_SendMyData(uint8_t *data_tmp, uint8_t s_len) {
// uint8_t i;
// uint8_t *c;
// c = data_tmp;
// data_control = 0xF;
// data_len = s_len;
// for (i = 0; i < data_len; i++) {
// data[i] = *c++;
// }
// return AVCLan_SendData();
// }
// uint8_t AVCLan_SendMyDataBroadcast(uint8_t *data_tmp, uint8_t s_len) {
// uint8_t i;
// uint8_t *c;
// c = data_tmp;
// data_control = 0xF;
// data_len = s_len;
// for (i = 0; i < data_len; i++) {
// data[i] = *c++;
// }
// return AVCLan_SendDataBroadcast();
// }
uint8_t AVCLan_SendInitCommands() { uint8_t AVCLan_SendInitCommands() {
uint8_t r; uint8_t r;
AVCLAN_frame_t frame = {.broadcast = BROADCAST, AVCLAN_frame_t frame = {.broadcast = BROADCAST,

9
src/avclandrv.h
View File

@ -106,14 +106,13 @@ typedef struct AVCLAN_frame_struct {
} AVCLAN_frame_t; } AVCLAN_frame_t;
uint8_t AVCLAN_readframe(); uint8_t AVCLAN_readframe();
void AVCLan_Send_Status(); uint8_t AVCLAN_sendframe(const AVCLAN_frame_t *frame);
void AVCLAN_printframe(const AVCLAN_frame_t *frame);
void AVCLan_Init(); void AVCLAN_init();
void AVCLan_Send_Status();
void AVCLan_Register(); void AVCLan_Register();
uint8_t AVCLan_SendAnswer(); uint8_t AVCLan_SendAnswer();
uint8_t AVCLAN_sendframe(const AVCLAN_frame_t *frame);
void AVCLAN_printframe(const AVCLAN_frame_t *frame);
uint8_t incBCD(uint8_t data); uint8_t incBCD(uint8_t data);

54
src/sniffer.c
View File

@ -34,8 +34,10 @@
#define EV_STATUS 4 #define EV_STATUS 4
uint8_t Event; uint8_t Event;
uint8_t echoCharacters;
void Setup(); void Setup();
void general_GPIO_init();
int main() { int main() {
uint8_t readSeq = 0; uint8_t readSeq = 0;
@ -215,27 +217,7 @@ void Setup() {
printAllFrames = 1; printAllFrames = 1;
echoCharacters = 1; echoCharacters = 1;
// Handle unconnected pins PA3, PB3-5 general_GPIO_init();
// Set as inputs
PORTA.DIRCLR = PIN3_bm;
PORTB.DIRCLR = (PIN3_bm | PIN4_bm | PIN5_bm);
// Enable pull-up resistor and disable input buffer (reduces any EM caused pin
// toggling and saves power)
PORTA.PIN3CTRL = PORT_PULLUPEN_bm | PORT_ISC_INPUT_DISABLE_gc;
PORTB.PIN3CTRL = PORT_PULLUPEN_bm | PORT_ISC_INPUT_DISABLE_gc;
PORTB.PIN4CTRL = PORT_PULLUPEN_bm | PORT_ISC_INPUT_DISABLE_gc;
PORTB.PIN5CTRL = PORT_PULLUPEN_bm | PORT_ISC_INPUT_DISABLE_gc;
// Output only pins: PA4-5, PC0-1, PC3, PB2
// TODO: TxD (PA1), RTS (PB0) is output only, test if RxD needs the input
// buffer or if the UART peripheral bypasses it
PORTA.PIN4CTRL = PORT_ISC_INPUT_DISABLE_gc;
PORTA.PIN5CTRL = PORT_ISC_INPUT_DISABLE_gc;
PORTC.PIN0CTRL = PORT_ISC_INPUT_DISABLE_gc;
PORTC.PIN1CTRL = PORT_ISC_INPUT_DISABLE_gc;
PORTC.PIN3CTRL = PORT_ISC_INPUT_DISABLE_gc;
PORTB.PIN2CTRL = PORT_ISC_INPUT_DISABLE_gc;
// Setup RTC as 1 sec periodic timer // Setup RTC as 1 sec periodic timer
loop_until_bit_is_clear(RTC_STATUS, RTC_CTRLABUSY_bp); loop_until_bit_is_clear(RTC_STATUS, RTC_CTRLABUSY_bp);
@ -247,12 +229,40 @@ void Setup() {
RS232_Init(); RS232_Init();
AVCLan_Init(); AVCLAN_init();
Event = EV_NOTHING; Event = EV_NOTHING;
sei(); sei();
} }
/* Configure pin settings which are not configured by peripherals */
void general_GPIO_init() {
// Set pins PC2-3, PB0,3-5 as inputs
PORTC.DIRCLR = (PIN2_bm | // Unconnected
PIN3_bm); // CTS
PORTB.DIRCLR = (PIN0_bm | // Unconnected
PIN3_bm | // IGN_SENSE
PIN4_bm | // Unused, but connected to WOC (PC0)
PIN5_bm); // Unused, but connected to WOD (PC1)
// Enable pull-up resistor and disable input buffer (reduces any EM caused pin
// toggling and saves power) for unused and unconnected pins
PORTC.PIN2CTRL = PORT_PULLUPEN_bm | PORT_ISC_INPUT_DISABLE_gc;
PORTB.PIN0CTRL = PORT_PULLUPEN_bm | PORT_ISC_INPUT_DISABLE_gc;
// Output only pins: PA3-5, PB1-2,4-5; PC0-1
// TODO: TxD (PA1), RTS (PA3) is output only, test if RxD needs the input
// buffer or if the UART peripheral bypasses it
PORTA.PIN3CTRL = PORT_ISC_INPUT_DISABLE_gc; // RTS
PORTA.PIN4CTRL = PORT_ISC_INPUT_DISABLE_gc; // WOA
PORTA.PIN5CTRL = PORT_ISC_INPUT_DISABLE_gc; // WOB
PORTB.PIN1CTRL = PORT_ISC_INPUT_DISABLE_gc; // MIC_CONTROL
PORTB.PIN4CTRL = PORT_ISC_INPUT_DISABLE_gc; // non-driving WOC
PORTB.PIN5CTRL = PORT_ISC_INPUT_DISABLE_gc; // non-driving WOD
PORTC.PIN0CTRL = PORT_ISC_INPUT_DISABLE_gc; // WOC
PORTC.PIN1CTRL = PORT_ISC_INPUT_DISABLE_gc; // WOD
}
// Periodic interrupt with a 1 sec period // Periodic interrupt with a 1 sec period
ISR(RTC_PIT_vect) { ISR(RTC_PIT_vect) {
if (CD_Mode == stPlay) { if (CD_Mode == stPlay) {