Cool_Tools/exa-io
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implement button mapping

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This commit is contained in:
Thomas Daede 2021-03-02 19:39:16 -08:00
parent f1c4d5775e
commit 5ed576aea0
1 changed files with 64 additions and 11 deletions
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75
firmware/td-io.c
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@ -13,6 +13,8 @@ const uint PIN_SR_CLK = 5;
const uint PIN_SR_SH = 4;
const uint8_t JVS_STATUS_GOOD = 1;
const uint8_t JVS_STATUS_UNKNOWN_COMMAND = 2;
const uint8_t JVS_STATUS_CHECKSUM_ERROR = 3;
const uint8_t JVS_REPORT_GOOD = 1;
@ -20,6 +22,34 @@ const uint8_t JVS_MAX_LEN = 253; // minus two for status and checksum
uint8_t our_address = 0;
#define SR_P1_3 0
#define SR_P2_3 1
#define SR_P1_4 2
#define SR_P2_4 3
#define SR_P1_5 4
#define SR_P2_5 5
#define SR_P1_6 6
#define SR_P2_6 7
#define SR_P1_LEFT 8
#define SR_P2_LEFT 9
#define SR_P1_RIGHT 10
#define SR_P2_RIGHT 11
#define SR_P1_1 12
#define SR_P2_1 13
#define SR_P1_2 14
#define SR_P2_2 15
#define SR_C1 16
#define SR_C2 17
#define SR_P1_START 18
#define SR_P2_START 19
#define SR_P1_UP 20
#define SR_P2_UP 21
#define SR_P1_DOWN 22
#define SR_P2_DOWN 23
#define SR_SERVICE 24
#define SR_TEST 25
#define SR_TILT 26
const char id_str[] = "TD;TD-IO;v1.0;https://github.com/tdaede/td-io";
const uint8_t input_desc[] = {
@ -39,7 +69,7 @@ void stop_transmit() {
gpio_put(PIN_JVS_RE, 0); // enable receiver
}
void send_message(uint8_t* m, uint8_t msg_len) {
void send_message(uint8_t status, uint8_t* m, uint8_t msg_len) {
start_transmit();
uart_putc(uart0, 0xe0);
uint8_t checksum = 0;
@ -47,7 +77,6 @@ void send_message(uint8_t* m, uint8_t msg_len) {
checksum += 0;
uart_putc(uart0, msg_len + 2);
checksum += msg_len + 2;
uint8_t status = JVS_STATUS_GOOD;
uart_putc(uart0, status);
checksum += status;
for (int i = 0; i < msg_len; i++) {
@ -63,12 +92,12 @@ uint32_t read_switches() {
gpio_put(PIN_SR_SH, 1);
busy_wait_us(1);
for (int i = 0; i < 32; i++) {
r <<= 1;
r |= gpio_get(PIN_SR_DATA);
gpio_put(PIN_SR_CLK, 1);
busy_wait_us(1);
gpio_put(PIN_SR_CLK, 0);
busy_wait_us(1);
r <<= 1;
r |= gpio_get(PIN_SR_DATA);
}
gpio_put(PIN_SR_SH, 0);
return ~r;
@ -180,20 +209,40 @@ int main() {
msg_send[o] = JVS_REPORT_GOOD;
o++;
uint32_t switches = read_switches();
msg_send[o] = 0x00; // test switches
msg_send[o] = ((switches >> SR_TEST) & 1) << 7
| ((switches >> SR_TILT) & 1) << 7;
o++;
//printf("Got coin slot request for %02x slots\n", slots);
for (int player = 0; player < num_players; player++) {
for (int byte = 0; byte < bytes_per_player; byte++) {
uint8_t b = 0;
if ((player == 0) && (byte == 0)) {
b = switches & 0xFF;
b = ((switches >> SR_P1_2) & 1) << 0
| ((switches >> SR_P1_1) & 1) << 1
| ((switches >> SR_P1_RIGHT) & 1) << 2
| ((switches >> SR_P1_LEFT) & 1) << 3
| ((switches >> SR_P1_DOWN) & 1) << 4
| ((switches >> SR_P1_UP) & 1) << 5
| ((switches >> SR_SERVICE) & 1) << 6
| ((switches >> SR_P1_START) & 1) << 7;
} else if ((player == 0) && (byte == 1)) {
b = (switches >> 8) & 0xFF;
b = ((switches >> SR_P1_6) & 1) << 4
| ((switches >> SR_P1_5) & 1) << 5
| ((switches >> SR_P1_4) & 1) << 6
| ((switches >> SR_P1_3) & 1) << 7;
} else if ((player == 1) && (byte == 0)) {
b = (switches >> 16) & 0xFF;
b = ((switches >> SR_P2_2) & 1) << 0
| ((switches >> SR_P2_1) & 1) << 1
| ((switches >> SR_P2_RIGHT) & 1) << 2
| ((switches >> SR_P2_LEFT) & 1) << 3
| ((switches >> SR_P2_DOWN) & 1) << 4
| ((switches >> SR_P2_UP) & 1) << 5
| ((switches >> SR_P2_START) & 1) << 7;
} else if ((player == 1) && (byte == 1)) {
b = (switches >> 24) & 0xFF;
b = ((switches >> SR_P2_6) & 1) << 4
| ((switches >> SR_P2_5) & 1) << 5
| ((switches >> SR_P2_4) & 1) << 6
| ((switches >> SR_P2_3) & 1) << 7;
}
msg_send[o] = b;
o++;
@ -216,13 +265,17 @@ int main() {
printf("%02x", message[j]);
}
printf("\n");
status = JVS_STATUS_UNKNOWN_COMMAND;
break;
}
}
if (o > 0) {
send_message(msg_send, o);
if ((o > 0) || (status != JVS_STATUS_GOOD)) {
send_message(status, msg_send, o);
}
} else {
printf("Checksum mismatch: theirs: %02x ours: %02x\n", their_checksum, our_checksum);
status = JVS_STATUS_CHECKSUM_ERROR;
send_message(status, msg_send, 0);
}
} else {
//printf("Saw non-sync code %02x\n", sync);