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Move RTC PIT to avclandrv and add CD status struct and answerreq

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This commit is contained in:
Allen Hill
2023-10-24 16:39:39 -04:00
parent 6d62fc4095
commit c906725a0c
3 changed files with 111 additions and 76 deletions
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src/avclandrv.c
+72 -17
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@@ -134,9 +134,11 @@ uint8_t printBinary;
uint8_t playMode;
uint8_t cd_Track;
uint8_t cd_Time_Min;
uint8_t cd_Time_Sec;
AVCLAN_CD_Status_t cd_status;
uint8_t *cd_Track;
uint8_t *cd_Time_Min;
uint8_t *cd_Time_Sec;
uint8_t answerReq;
@@ -299,6 +301,14 @@ void AVCLAN_init() {
TCB1.CCMP = 0xFFFF;
TCB1.CTRLA = TCB_CLKSEL | TCB_ENABLE_bm;
// Setup RTC as 1 sec periodic timer
loop_until_bit_is_clear(RTC_STATUS, RTC_CTRLABUSY_bp);
RTC.CTRLA = RTC_PRESCALER_DIV1_gc;
RTC.CLKSEL = RTC_CLKSEL_INT32K_gc;
RTC.PITINTCTRL = RTC_PI_bm;
loop_until_bit_is_clear(RTC_PITSTATUS, RTC_CTRLBUSY_bp);
RTC.PITCTRLA = RTC_PERIOD_CYC32768_gc | RTC_PITEN_bm;
// Set PA4 and PC0 as outputs
PORTA.DIRSET = PIN4_bm;
PORTC.DIRSET = PIN0_bm;
@@ -308,13 +318,56 @@ void AVCLAN_init() {
answerReq = cm_Null;
cd_Track = 1;
cd_Time_Min = 0;
cd_Time_Sec = 0;
cd_status.cd1 = 1;
cd_status.disc = 1;
cd_status.cd2 = cd_status.cd3 = cd_status.cd4 = cd_status.cd5 =
cd_status.cd6 = 0;
cd_status.state = cd_LOADING;
cd_status.disk_random = 0;
cd_status.random = 0;
cd_status.disk_repeat = 0;
cd_status.repeat = 0;
cd_status.scan = 0;
cd_status.track = 1;
cd_status.mins = 0;
cd_status.secs = 0;
cd_Track = &cd_status.track;
cd_Time_Min = &cd_status.mins;
cd_Time_Sec = &cd_status.secs;
playMode = 0;
CD_Mode = stStop;
}
/* Increment packed 2-digit BCD number.
WARNING: Overflow behavior is incorrect (e.g. `incBCD(0x99) != 0x00`) */
uint8_t incBCD(uint8_t data) {
if ((data & 0x9) == 0x9)
return (data + 7);
return (data + 1);
}
// Periodic interrupt with a 1 sec period
ISR(RTC_PIT_vect) {
if (CD_Mode == stPlay) {
uint8_t sec = *cd_Time_Sec;
uint8_t min = *cd_Time_Min;
sec = incBCD(sec);
if (sec == 0x60) {
*cd_Time_Sec = 0;
min = incBCD(min);
if (min == 0xA0) {
*cd_Time_Min = 0x0;
}
}
answerReq = cm_CDStatus;
}
RTC.PITINTFLAGS |= RTC_PI_bm;
}
void set_AVC_logic_for(uint8_t val, uint16_t period) {
TCB1.CNT = 0;
if (val) {
@@ -878,6 +931,8 @@ uint8_t AVCLAN_sendframe(const AVCLAN_frame_t *frame) {
return 0;
}
uint8_t AVCLAN_responseNeeded() { return (answerReq != 0); }
void AVCLAN_printframe(const AVCLAN_frame_t *frame, uint8_t binary) {
if (binary) {
RS232_SendByte(0x10); // Data Link Escape, signaling binary data forthcoming
@@ -990,9 +1045,9 @@ uint8_t AVCLan_SendInitCommands() {
void AVCLan_Send_Status() {
uint8_t STATUS[] = {0x63, 0x31, 0xF1, 0x01, 0x10, 0x01,
0x01, 0x00, 0x00, 0x00, 0x80};
STATUS[6] = cd_Track;
STATUS[7] = cd_Time_Min;
STATUS[8] = cd_Time_Sec;
STATUS[6] = *cd_Track;
STATUS[7] = *cd_Time_Min;
STATUS[8] = *cd_Time_Sec;
STATUS[9] = 0;
AVCLAN_frame_t status = {.broadcast = UNICAST,
@@ -1083,14 +1138,14 @@ uint8_t AVCLan_SendAnswer() {
frame.broadcast = CMD_PLAY_OK4.broadcast;
frame.length = CMD_PLAY_OK4.length;
frame.data = (uint8_t *)&CMD_PLAY_OK4.data[0];
CMD_PLAY_OK4.data[8] = cd_Track;
CMD_PLAY_OK4.data[9] = cd_Time_Min;
CMD_PLAY_OK4.data[10] = cd_Time_Sec;
CMD_PLAY_OK4.data[8] = *cd_Track;
CMD_PLAY_OK4.data[9] = *cd_Time_Min;
CMD_PLAY_OK4.data[10] = *cd_Time_Sec;
r = AVCLAN_sendframe(&frame);
CD_Mode = stPlay;
case cm_CDStatus:
if (!r)
AVCLan_Send_Status();
CD_Mode = stPlay;
break;
case cm_StopReq:
case cm_StopReq2:
@@ -1101,9 +1156,9 @@ uint8_t AVCLan_SendAnswer() {
frame.data = (uint8_t *)&CMD_STOP1.data[0];
r = AVCLAN_sendframe(&frame);
CMD_STOP2.data[8] = cd_Track;
CMD_STOP2.data[9] = cd_Time_Min;
CMD_STOP2.data[10] = cd_Time_Sec;
CMD_STOP2.data[8] = *cd_Track;
CMD_STOP2.data[9] = *cd_Time_Min;
CMD_STOP2.data[10] = *cd_Time_Sec;
frame.broadcast = CMD_STOP2.broadcast;
frame.length = CMD_STOP2.length;
frame.data = (uint8_t *)&CMD_STOP2.data[0];