static char* test_cbuffer_pop(void) {
CircularBuffer* mybuf = cbuffer_new();
// put us at the end of the buffer
mybuf->pos = IO_BUFFER_SIZE - 5;
mybuf->tail = IO_BUFFER_SIZE - 5;
uint32_t test_data[11] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
cbuffer_append(mybuf, test_data, 11);
Buffer* bucky = cbuffer_pop(mybuf, 5);
mu_assert_eq("size", cbuffer_size(mybuf), 6);
mu_assert_eq("content", memcmp(bucky->data, test_data,
5*sizeof(uint32_t)), 0);
Buffer* badger = cbuffer_pop(mybuf, 6);
mu_assert_eq("size2", cbuffer_size(mybuf), 0);
mu_assert_eq("content2",
memcmp(badger->data, test_data + 5, 6), 0);
// if we pop an empty collection, we get nothing.
Buffer* empty = cbuffer_pop(mybuf, 10);
mu_assert_eq("size3", empty->size, 0);
cbuffer_free(mybuf);
buffer_free(bucky);
buffer_free(badger);
buffer_free(empty);
return 0;
}
static char* test_cbuffer_transfer_data(void) {
CircularBuffer* src = cbuffer_new();
CircularBuffer* dst = cbuffer_new();
for (int i = 0; i < 200; ++i) {
cbuffer_push_back(src, i);
}
mu_assert_eq("Src buffer size", cbuffer_size(src), 200);
mu_assert_eq("Dst buffer size", cbuffer_size(dst), 0);
// transfer data from src -> dst
cbuffer_transfer_data(src, dst);
mu_assert_eq("Src buffer size post transfer",
cbuffer_size(src), 0);
mu_assert_eq("Dst buffer size post transfer",
cbuffer_size(dst), 200);
// check content
for (int i = 0; i < 200; ++i) {
mu_assert_eq("Dst content",
cbuffer_pop_front(dst), i);
}
cbuffer_free(src);
cbuffer_free(dst);
return 0;
}
int ipbus_stream_state(const CircularBuffer* input_buffer, int* swapbytes) {
if (!cbuffer_size(input_buffer)) {
return IPBUS_ISTREAM_EMPTY;
}
uint32_t firstword = cbuffer_value_at_net(input_buffer, 0);
//LOG_DEBUG("Got a word: %"PRIx32, firstword);
// check if this is a packet header
int is_pkt = ipbus_detect_packet_header(firstword);
if (is_pkt) {
// check if we want to update an endianness flag
if (swapbytes != NULL) {
if (is_pkt == IPBUS_ISTREAM_PACKET)
*swapbytes = 0;
if (is_pkt == IPBUS_ISTREAM_PACKET_SWP_ORD)
*swapbytes = 1;
}
return is_pkt;
}
// Double check if it is reasonable transaction packet
// header. We should never have the middle of a transaction
// at the header of the buffer - we always wait for a
// transaction to be in-buffer before reading it out.
ipbus_transaction_t transaction = ipbus_decode_transaction_header(
input_buffer, *swapbytes);
if ((int)cbuffer_size(input_buffer) >= (transaction.data.size + 1)) {
return IPBUS_ISTREAM_FULL_TRANS;
}
//LOG_DEBUG("Partial transaction size: %"PRIx32, cbuffer_size(input_buffer));
return IPBUS_ISTREAM_PARTIAL_TRANS;
}
static char* test_cbuffer_append_wraps(void) {
CircularBuffer* mybuf = cbuffer_new();
// put us at the end of the buffer
mybuf->pos = IO_BUFFER_SIZE - 5;
mybuf->tail = IO_BUFFER_SIZE - 5;
uint32_t test_data[11] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
cbuffer_append(mybuf, test_data, 11);
mu_assert_eq("pos", mybuf->pos, IO_BUFFER_SIZE - 5);
mu_assert_eq("size", cbuffer_size(mybuf), 11);
mu_assert_eq("tail content", memcmp(
&(mybuf->data[mybuf->pos]),
test_data,
5 * sizeof(uint32_t)), 0);
// make sure we aren't trashing the memory after the buffer.
//mu_assert_eq("tail content sanity", mybuf->data[IO_BUFFER_SIZE-1], 4);
mu_assert_eq("head content", memcmp(
mybuf->data,
test_data + 5,
6 * sizeof(uint32_t)), 0);
uint32_t test_data2[3] = {11, 12, 13};
cbuffer_append(mybuf, test_data2, 3);
mu_assert_eq("size", cbuffer_size(mybuf), 14);
mu_assert_eq("content", memcmp(&(mybuf->data[6]), test_data2, 3), 0);
cbuffer_free(mybuf);
return 0;
}
static char* test_ram2()
{
// --------------
// Setup
// --------------
CircularBuffer* pc_input = cbuffer_new();
CircularBuffer* pc_output = cbuffer_new();
CircularBuffer* orsc_input = cbuffer_new();
CircularBuffer* orsc_output = cbuffer_new();
VMEStream *pc_stream = vmestream_initialize_heap(pc_input, pc_output, 2);
VMEStream *orsc_stream = malloc(sizeof(VMEStream));
orsc_stream->input = orsc_input;
orsc_stream->output = orsc_output;
orsc_stream->local_send_size = pc_stream->remote_send_size;
orsc_stream->local_recv_size = pc_stream->remote_recv_size;
orsc_stream->remote_send_size = pc_stream->local_send_size;
orsc_stream->remote_recv_size = pc_stream->local_recv_size;
orsc_stream->recv_data = pc_stream->send_data;
orsc_stream->send_data = pc_stream->recv_data;
orsc_stream->MAXRAM = pc_stream->MAXRAM;
cbuffer_push_back(pc_input, 0xDEADBEEF);
cbuffer_push_back(orsc_input, 0xBEEFCAFE);
vmestream_transfer_data(pc_stream);
vmestream_transfer_data(orsc_stream);
vmestream_transfer_data(pc_stream);
mu_assert("Error: pc_input not empty", cbuffer_size(pc_input) == 0);
mu_assert("Error: orsc_input not empty", cbuffer_size(orsc_input) == 0);
mu_assert("Error: orsc_output.pop != DEADBEEF", cbuffer_pop_front(orsc_output));
mu_assert("Error: pc_output.pop != BEEFCAFE", cbuffer_pop_front(pc_output));
mu_assert("Error: pc_output not empty", cbuffer_size(pc_output) == 0);
mu_assert("Error: orsc_output not empty", cbuffer_size(orsc_output) == 0);
// --------------
// Tear-Down
// --------------
vmestream_destroy_heap(pc_stream);
free(orsc_stream);
cbuffer_free(pc_input);
cbuffer_free(orsc_input);
cbuffer_free(pc_output);
cbuffer_free(orsc_output);
return 0;
}
static char* test_cbuffer_size(void) {
CircularBuffer* mybuf = cbuffer_new();
mybuf->pos = IO_BUFFER_SIZE - 5;
mybuf->tail = IO_BUFFER_SIZE - 5;
mu_assert_eq("size0", cbuffer_size(mybuf), 0);
for (int i = 0; i < 15; ++i) {
cbuffer_push_back(mybuf, i);
mu_assert_eq("size", cbuffer_size(mybuf), i + 1);
}
cbuffer_free(mybuf);
return 0;
}
/**
* Push less data to the buffers than we have RAM available
*/
static char *test_ram2()
{
// local application buffers
CircularBuffer *tx1 = cbuffer_new();
CircularBuffer *rx1 = cbuffer_new();
CircularBuffer *tx2 = cbuffer_new();
CircularBuffer *rx2 = cbuffer_new();
VMEStream *test1 = vmestream_initialize(tx1, rx1, 2);
VMEStream *test2 = malloc(sizeof(VMEStream));
test2->input = tx2;
test2->output = rx2;
test2->rx_size = test1->tx_size;
test2->tx_size = test1->rx_size;
test2->rx_data = test1->tx_data;
test2->tx_data = test1->rx_data;
test2->MAXRAM = test1->MAXRAM;
// place only one word on the buffers
cbuffer_push_back(tx1, 0xDEADBEEF);
// put some output data on host #2
cbuffer_push_back(tx2, 0xBEEFCAFE);
vmestream_transfer_data(test1);
vmestream_transfer_data(test2);
vmestream_transfer_data(test1);
mu_assert("Error: tx1 not empty", 0 == cbuffer_size(tx1));
mu_assert("Error: tx2 not empty", 0 == cbuffer_size(tx2));
mu_assert("Error: 0xDEADBEEF != rx2.pop", 0xDEADBEEF == cbuffer_pop_front(rx2));
mu_assert("Error: 0xBEEFCAFE != rx1.pop", 0xBEEFCAFE == cbuffer_pop_front(rx1));
mu_assert("Error: rx2 not empty", 0 == cbuffer_size(rx2));
mu_assert("Error: rx1 not empty", 0 == cbuffer_size(rx1));
// free memory
vmestream_destroy(test1);
free(test2);
cbuffer_free(tx1);
cbuffer_free(rx1);
cbuffer_free(tx2);
cbuffer_free(rx2);
return 0;
}
int main() {
xil_printf("Master SPI oRSC echo test\n");
// initialize stdout.
init_platform();
tx_buffer = cbuffer_new();
rx_buffer = cbuffer_new();
vme_stream = vmestream_initialize_mem(
rx_buffer, tx_buffer,
(uint32_t*)ORSC_2_PC_SIZE,
(uint32_t*)PC_2_ORSC_SIZE,
(uint32_t*)ORSC_2_PC_DATA,
(uint32_t*)PC_2_ORSC_DATA,
VMERAMSIZE);
//printf("Master SPI oRSC echo test\n");
while (1) {
// transfer data
vmestream_transfer_data(vme_stream);
// now echo the data
while (cbuffer_size(rx_buffer) && cbuffer_freespace(tx_buffer)) {
cbuffer_push_back(tx_buffer, cbuffer_pop_front(rx_buffer));
}
}
return 0;
}
// Test decoding + re-encoding a transaction stream
static char* test_ipbus_decode_encode_transaction(void) {
CircularBuffer* packet = cbuffer_new();
// a read request.
uint32_t header = ipbus_transaction_header(
2, // protocol
0xACE, // transaction id
5, // number of words to read
IPBUS_READ,
IPBUS_INFO_REQUEST);
uint32_t payload = 0xBEEFFACE;
cbuffer_push_back_net(packet, header);
cbuffer_push_back_net(packet, payload);
ipbus_transaction_t decoded = ipbus_decode_transaction(packet, 0);
CircularBuffer* encoded = cbuffer_new();
ipbus_encode_transaction(encoded, &decoded, 0);
mu_assert_eq("encode-decode length", cbuffer_size(encoded), 2);
mu_assert("encode-decode", memcmp(encoded->data, packet->data, 8)==0);
return 0;
}
static char* test_ipbus_decode_encode_write_transaction(void) {
CircularBuffer* packet = cbuffer_new();
// a read request.
uint32_t header = ipbus_transaction_header(
2, // protocol
0xACE, // transaction id
5, // number of words to write
IPBUS_WRITE,
IPBUS_INFO_REQUEST);
uint32_t baseaddr = 0xBEEFFACE;
cbuffer_push_back_net(packet, header);
cbuffer_push_back_net(packet, baseaddr);
for (size_t i = 0; i < 5; ++i) {
cbuffer_push_back_net(packet, i);
}
ipbus_transaction_t decoded = ipbus_decode_transaction(packet, 0);
CircularBuffer* encoded = cbuffer_new();
ipbus_encode_transaction(encoded, &decoded, 0);
mu_assert_eq("encode-decode length", cbuffer_size(encoded), 1 + 1 + 1 * 5);
mu_assert("encode-decode", memcmp(encoded->data, packet->data, 7*4)==0);
return 0;
}
static char * test_forwardingtransaction_handle_one_transaction(void) {
// make two pipes to simulate the forwarding serial port.
int txpipefd[2];
pipe(txpipefd);
int rxpipefd[2];
pipe(rxpipefd);
// make txpipe nonblocking, so we can check if it's empty.
fcntl(txpipefd[0], F_SETFL, fcntl(txpipefd[0], F_GETFL) | O_NONBLOCK);
initialize_fowarding_fds(txpipefd[1], rxpipefd[0]);
CircularBuffer* input = cbuffer_new();
cbuffer_push_back_net(input, ipbus_transaction_header(2, 0xCAB, 1, IPBUS_RMW, IPBUS_INFO_REQUEST));
cbuffer_push_back_net(input, 0xBEEFCAFE);
cbuffer_push_back_net(input, 0xDEAFBEEF);
cbuffer_push_back_net(input, 0xFACEBEEF);
// RMW expects 1+1 words back
cbuffer_push_back_net(input, ipbus_transaction_header(2, 0xBAD, 5, IPBUS_READ, IPBUS_INFO_REQUEST));
cbuffer_push_back_net(input, 0xBEEFCAFE);
// READ expects 1+5 words back
// write some junk onto the receiving pipe so we can check
// we are reading the correct amount of return bytes.
uint32_t junkwords[8] = {
0xDEADBEEF, 0xBEEFCAFE,
0xFACEBEEF, 0x12345678, 0xDEADFACE, 0xBADEBEEF, 0x87654321, 0xABABABAB};
write(rxpipefd[1], junkwords, 8 * sizeof(uint32_t));
CircularBuffer* input_copy = cbuffer_copy(input);
CircularBuffer* output = cbuffer_new();
int words_consumed = handle_transaction_stream(input, 0, output);
// should eat both transactions
mu_assert_eq("ate everything i should", words_consumed, 6);
// Make sure it passed it along the TX pipe
ByteBuffer outputbuf = bytebuffer_ctor(NULL, 10 * sizeof(uint32_t));
// should pass along only 6 words.
read(txpipefd[0], outputbuf.buf, 10 * sizeof(uint32_t));
mu_assert("forwarded trans", memcmp(outputbuf.buf, input_copy->data, 6*sizeof(uint32_t)) == 0);
// there should no more data on the pipe
mu_assert_eq("output pipe empty", read(txpipefd[0], outputbuf.buf, sizeof(uint32_t)), -1);
// we expect header word + 1 payload word to be read from a RMW,
// 1 header + 5 data words from the READ
mu_assert_eq("output size", cbuffer_size(output), 8);
mu_assert_eq("output content header", cbuffer_value_at(output, 0), 0xDEADBEEF);
mu_assert_eq("output content payload", cbuffer_value_at(output, 1), 0xBEEFCAFE);
mu_assert_eq("output content header 2", cbuffer_value_at(output, 2), 0xFACEBEEF);
mu_assert_eq("output content payload 2", cbuffer_value_at(output, 3), 0x12345678);
return 0;
}
static char* test_cbuffer_new(void) {
CircularBuffer* mybuf = cbuffer_new();
mu_assert_eq("size", cbuffer_size(mybuf), 0);
mu_assert_eq("pos", mybuf->pos, 0);
mu_assert_eq("freespace", cbuffer_freespace(mybuf), IO_BUFFER_SIZE - 1);
mu_assert_eq("init is zero", (mybuf->data[0]), 0);
cbuffer_free(mybuf);
return 0;
}
static char* test_cbuffer_append(void) {
CircularBuffer* mybuf = cbuffer_new();
uint32_t test_data[5] = {0, 1, 2, 3, 4};
cbuffer_append(mybuf, test_data, 5);
mu_assert_eq("pos", mybuf->pos, 0);
mu_assert_eq("size", cbuffer_size(mybuf), 5);
mu_assert_eq("content", memcmp(mybuf->data, test_data, 5 * sizeof(uint32_t)), 0);
uint32_t test_data2[3] = {6, 7, 8};
cbuffer_append(mybuf, test_data2, 3);
mu_assert_eq("pos", mybuf->pos, 0);
mu_assert_eq("size", cbuffer_size(mybuf), 8);
mu_assert_eq("content2", memcmp(mybuf->data, test_data, 5 * sizeof(uint32_t)), 0);
mu_assert_eq("content3", memcmp(&(mybuf->data[5]),
test_data2, 3 * sizeof(uint32_t)), 0);
cbuffer_free(mybuf);
return 0;
}
static char* test_spi_stream_construct_tx_packet(void) {
uint32_t my_data[5] = {1, 2, 3, 4, 5};
CircularBuffer* mybuf = cbuffer_new();
cbuffer_append(mybuf, my_data, 5);
uint32_t my_pkt_expected[10] = {0xBEEF, 5, 1, 2, 3, 4, 5, 0xDEADBEEF, 0xDEADBEEF, -1};
add_checksum(my_pkt_expected, 10);
int checksum_err = -1;
spi_stream_verify_packet(my_pkt_expected, 10, &checksum_err);
mu_assert_eq("no cksum err", checksum_err, 0);
uint32_t my_pkt[10];
spi_stream_construct_tx_packet(0xBEEF, my_pkt, 10, mybuf);
// for (int i = 0; i < 10; ++i) {
// printf("%i %lx %lx\n", i, my_pkt_expected[i], my_pkt[i]);
// }
mu_assert_eq("packet", memcmp(my_pkt_expected, my_pkt, 10 * sizeof(uint32_t)), 0);
mu_assert_eq("consumed", cbuffer_size(mybuf), 0);
// put more in the buffer than we can consume at once
cbuffer_append(mybuf, my_data, 5);
cbuffer_append(mybuf, my_data, 5);
cbuffer_append(mybuf, my_data, 5);
uint32_t my_pkt_expected_2[10] = {0xBEEF, 7, 1, 2, 3, 4, 5, 1, 2, -1};
add_checksum(my_pkt_expected_2, 10);
spi_stream_verify_packet(my_pkt_expected_2, 10, &checksum_err);
mu_assert_eq("no cksum err 2", checksum_err, 0);
spi_stream_construct_tx_packet(0xBEEF, my_pkt, 10, mybuf);
mu_assert_eq("packet", memcmp(my_pkt_expected_2, my_pkt, 10 * sizeof(uint32_t)), 0);
mu_assert_eq("consumed", cbuffer_size(mybuf), 8);
spi_stream_verify_packet(my_pkt, 10, &checksum_err);
mu_assert_eq("no cksum actual", checksum_err, 0);
return 0;
}
static char* test_cbuffer_delete_front_wraps(void) {
CircularBuffer* mybuf = cbuffer_new();
uint32_t test_data[11] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
// put us at the end of the buffer
mybuf->pos = IO_BUFFER_SIZE - 5;
mybuf->tail = IO_BUFFER_SIZE - 5;
cbuffer_append(mybuf, test_data, 11);
mu_assert_eq("content", memcmp(&(mybuf->data[mybuf->pos]),
test_data, 5 * sizeof(uint32_t)), 0);
int deleted = cbuffer_deletefront(mybuf, 5);
mu_assert_eq("deleted", deleted, 5);
mu_assert_eq("pos", mybuf->pos, 0);
mu_assert_eq("size", cbuffer_size(mybuf), 6);
mu_assert_eq("item0", mybuf->data[mybuf->pos], 5);
mu_assert_eq("item1", mybuf->data[mybuf->pos+1], 6);
mu_assert_eq("item2", mybuf->data[mybuf->pos+2], 7);
mu_assert_eq("remaining content in cbuffer", memcmp(
&(mybuf->data[0]),
test_data + 5, 6 * sizeof(uint32_t)), 0);
Buffer* readout = buffer_new(NULL, 6);
cbuffer_read(mybuf, readout->data, 6);
mu_assert_eq("remaining content", memcmp(
readout->data,
(test_data + 5),
6 * sizeof(uint32_t)), 0);
// if we ask to delete everything, just return what was actually deleted.
int deleted_just_to_end = cbuffer_deletefront(mybuf, 100);
mu_assert_eq("deleted just to end", deleted_just_to_end, 6);
mu_assert_eq("pos2", mybuf->pos, 6);
mu_assert_eq("size2", cbuffer_size(mybuf), 0);
cbuffer_free(mybuf);
buffer_free(readout);
return 0;
}
static char* test_cbuffer_freespace(void) {
CircularBuffer* mybuf = cbuffer_new();
mybuf->tail = IO_BUFFER_SIZE - 5;
mu_assert_eq("freespace", cbuffer_freespace(mybuf), 4);
mu_assert_eq("size", cbuffer_size(mybuf), IO_BUFFER_SIZE - 5);
for (int i = 1; i < 5; ++i) {
cbuffer_push_back(mybuf, i);
mu_assert_eq("freespace", cbuffer_freespace(mybuf), 4 - i);
}
cbuffer_free(mybuf);
return 0;
}
static char* test_cbuffer_fd_full(void) {
// make sure we can stop reading if our read buffer is full
// make pipes
int pipefd[2];
pipe(pipefd);
// make txpipe nonblocking, so we can check if it's empty.
fcntl(pipefd[0], F_SETFL, fcntl(pipefd[0], F_GETFL) | O_NONBLOCK);
int in = pipefd[1];
int out = pipefd[0];
CircularBuffer* frombuf = cbuffer_new();
for (int i = 0; i < 200; ++i) {
cbuffer_push_back(frombuf, i);
}
mu_assert_eq("from size", cbuffer_size(frombuf), 200);
CircularBuffer* tobuf = cbuffer_new();
tobuf->pos = IO_BUFFER_SIZE - 100;
tobuf->tail = IO_BUFFER_SIZE - 100;
ssize_t written = cbuffer_write_fd(frombuf, in, 200);
mu_assert_eq("wrote to pipe", written, 200);
mu_assert_eq("from size after", cbuffer_size(frombuf), 0);
tobuf->tail += IO_BUFFER_SIZE - 100;
mu_assert_eq("to freespace", cbuffer_freespace(tobuf), 99);
ssize_t read = cbuffer_read_fd(tobuf, out, 200);
ssize_t exp = 99;
mu_assert_eq("read from pipe", (int)read, (int)exp);
cbuffer_free(frombuf);
cbuffer_free(tobuf);
return 0;
}
static char* test_cbuffer_fd_features(void) {
// make pipes
int pipefd[2];
pipe(pipefd);
// make txpipe nonblocking, so we can check if it's empty.
fcntl(pipefd[0], F_SETFL, fcntl(pipefd[0], F_GETFL) | O_NONBLOCK);
int in = pipefd[1];
int out = pipefd[0];
CircularBuffer* frombuf = cbuffer_new();
for (int i = 0; i < 200; ++i) {
cbuffer_push_back(frombuf, i);
}
mu_assert_eq("from size", cbuffer_size(frombuf), 200);
CircularBuffer* tobuf = cbuffer_new();
tobuf->pos = IO_BUFFER_SIZE - 100;
tobuf->tail = IO_BUFFER_SIZE - 100;
ssize_t written = cbuffer_write_fd(frombuf, in, 200);
mu_assert_eq("wrote to pipe", written, 200);
mu_assert_eq("from size after", cbuffer_size(frombuf), 0);
ssize_t read = cbuffer_read_fd(tobuf, out, 200);
mu_assert_eq("read from pipe", read, 200);
for (int i = 0; i < 200; ++i) {
mu_assert_eq("fd closure value", cbuffer_value_at(tobuf, i), i);
}
cbuffer_free(frombuf);
cbuffer_free(tobuf);
return 0;
}
void SendHandler(void *CallBackRef, unsigned int EventData) {
// delete the bytes which were sent previously
if (EventData % sizeof(uint32_t)) {
LOG_DEBUG("ERROR: sent data not word aligned!!!\n");
}
cbuffer_deletefront(tx_buffer, EventData / sizeof(uint32_t));
if (cbuffer_size(tx_buffer)) {
unsigned int to_send = cbuffer_contiguous_data_size(tx_buffer) * sizeof(uint32_t);
XUartLite_Send(&UartLite, (u8*)&(tx_buffer->data[tx_buffer->pos]), to_send);
LOG_DEBUG("SendHandler _Send %x\n", to_send);
currently_sending = 1;
} else {
LOG_DEBUG("SendHandler Idling\n");
currently_sending = 0;
}
LOG_DEBUG("SendHandler SENT INTR %x\n", EventData);
}
static char* test_cbuffer_copy(void) {
CircularBuffer* mybuf = cbuffer_new();
mu_assert_eq("size", cbuffer_size(mybuf), 0);
mu_assert_eq("pos", mybuf->pos, 0);
mu_assert_eq("tail", mybuf->tail, 0);
for (uint32_t i = 0; i < IO_BUFFER_SIZE - 2; ++i) {
cbuffer_push_back(mybuf, i);
}
mu_assert_eq("tail", mybuf->tail, IO_BUFFER_SIZE - 2);
CircularBuffer* copy = cbuffer_copy(mybuf);
mu_assert_eq("content", memcmp(mybuf->data, copy->data,
IO_BUFFER_SIZE * sizeof(uint32_t)), 0);
mu_assert_eq("pos copy", mybuf->pos, copy->pos);
mu_assert_eq("tail copy", mybuf->tail, copy->tail);
cbuffer_free(mybuf);
cbuffer_free(copy);
return 0;
}
static char* test_cbuffer_push_back(void) {
CircularBuffer* mybuf = cbuffer_new();
// put us at the end of the buffer
mybuf->pos = IO_BUFFER_SIZE - 2;
mybuf->tail = IO_BUFFER_SIZE - 2;
cbuffer_push_back(mybuf, 0xDEADBEEF);
cbuffer_push_back(mybuf, 0xBEEFFACE);
cbuffer_push_back(mybuf, 0xDEADFACE);
mu_assert_eq("size", cbuffer_size(mybuf), 3);
mu_assert_eq("pos", mybuf->pos, IO_BUFFER_SIZE-2);
mu_assert_eq("item0", mybuf->data[mybuf->pos], 0xDEADBEEF);
mu_assert_eq("item1", mybuf->data[mybuf->pos + 1], 0xBEEFFACE);
mu_assert_eq("item2", mybuf->data[0], 0xDEADFACE);
cbuffer_free(mybuf);
return 0;
}
static char* test_cbuffer_pop_front(void) {
CircularBuffer* mybuf = cbuffer_new();
// put us at the end of the buffer
mybuf->pos = IO_BUFFER_SIZE - 5;
mybuf->tail = IO_BUFFER_SIZE - 5;
uint32_t test_data[11] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
cbuffer_append(mybuf, test_data, 11);
for (int i = 0; i < 11; i++) {
mu_assert_eq("pre-pop size", cbuffer_size(mybuf), 11 - i);
uint32_t value = cbuffer_pop_front(mybuf);
mu_assert_eq("popped_content", (int)value, i);
}
// if we pop an empty collection, we get dead beef.
uint32_t empty = cbuffer_pop_front(mybuf);
mu_assert_eq("empty", empty, 0xDEADBEEF);
cbuffer_free(mybuf);
return 0;
}
/*
* Make sure cbuffer_fd_read handles the edge case where cbuffer->tail returns
* to the front of buffer->data
*/
static char* test_cbuffer_fd_read_edge(void) {
int pipefd[2];
pipe(pipefd);
fcntl(pipefd[0], F_SETFL, fcntl(pipefd[0], F_GETFL) | O_NONBLOCK);
int in = pipefd[1];
int out = pipefd[0];
CircularBuffer* mybuf = cbuffer_new();
// completely fill buffer
while (cbuffer_freespace(mybuf) > 0) {
mu_assert_eq("mybuf overflow", cbuffer_push_back(mybuf, 0xDEADBEEF), 0);
}
mu_assert_eq("mybuf still has free space", cbuffer_freespace(mybuf), 0);
// clear a single space in the cbuffer
// free space should be at the front of cbuffer->data
cbuffer_deletefront(mybuf, 1);
uint32_t inbuf[] = {0xCAFEBABE};
write(in, inbuf, sizeof(uint32_t));
// read a single word into the free slot in the buffer
mu_assert_eq("Could not read data", cbuffer_read_fd(mybuf, out, 1), 1);
// check the content of the cbuffer
while (cbuffer_size(mybuf) > 1) {
mu_assert_eq("Content should be 0xDEADBEEF",
cbuffer_pop_front(mybuf), 0xDEADBEEF);
}
mu_assert_eq("Content should be 0xCAFEBABE",
cbuffer_pop_front(mybuf), 0xCAFEBABE);
cbuffer_free(mybuf);
return 0;
}
int main(void) {
LOG_INFO("UART CTP FE echo test\n");
init_platform();
tx_buffer = cbuffer_new();
rx_buffer = cbuffer_new();
int Status;
u16 DeviceId = UARTLITE_DEVICE_ID;
/*
* Initialize the UartLite driver so that it's ready to use.
*/
Status = XUartLite_Initialize(&UartLite, DeviceId);
if (Status != XST_SUCCESS) {
LOG_ERROR ("Error: could not initialize UART\n");
return XST_FAILURE;
}
XUartLite_ResetFifos(&UartLite);
/*
* Perform a self-test to ensure that the hardware was built correctly.
*/
Status = XUartLite_SelfTest(&UartLite);
if (Status != XST_SUCCESS) {
LOG_ERROR ("Error: self test failed\n");
return XST_FAILURE;
}
/*
* Connect the UartLite to the interrupt subsystem such that interrupts can
* occur. This function is application specific.
*/
Status = SetupInterruptSystem(&UartLite);
if (Status != XST_SUCCESS) {
LOG_ERROR ("Error: could not setup interrupts\n");
return XST_FAILURE;
}
/*
* Setup the handlers for the UartLite that will be called from the
* interrupt context when data has been sent and received, specify a
* pointer to the UartLite driver instance as the callback reference so
* that the handlers are able to access the instance data.
*/
XUartLite_SetSendHandler(&UartLite, SendHandler, &UartLite);
XUartLite_SetRecvHandler(&UartLite, RecvHandler, &UartLite);
/*
* Enable the interrupt of the UartLite so that interrupts will occur.
*/
XUartLite_EnableInterrupt(&UartLite);
// bootstrap the READ
LOG_DEBUG("Bootstrapping READ\n");
XUartLite_Recv(&UartLite, (u8*)&rx_tmp_buffer, sizeof(uint32_t));
LOG_INFO("Starting loop\n");
/*
LOG_DEBUG("Sending 'wtf!'\n");
currently_sending = 1;
char help[4] = "wtf!";
unsigned int ret = XUartLite_Send(&UartLite, (u8*)help, 4);
LOG_DEBUG("WTF send complete return: %x\n", ret);
*/
/* echo received data forever */
unsigned int heartbeat = 0;
while (1) {
if (heartbeat++ % (1 << 8)) {
//LOG_DEBUG("bump %x\n", heartbeat);
}
while (cbuffer_size(rx_buffer) && cbuffer_freespace(tx_buffer)) {
uint32_t data = cbuffer_pop_front(rx_buffer);
//LOG_DEBUG("Echoing data word %x\n", data);
cbuffer_push_back(tx_buffer, data);
}
if (!currently_sending && cbuffer_size(tx_buffer)) {
LOG_DEBUG("\nREINT SEND\n");
currently_sending = 1;
/*
if (XUartLite_IsSending(&UartLite)) {
LOG_DEBUG("UART STAT: sending\n");
} else {
LOG_DEBUG("UART STAT: idle\n");
}
*/
unsigned int to_send = cbuffer_contiguous_data_size(tx_buffer) * sizeof(uint32_t);
u8* output_ptr = (u8*)&(tx_buffer->data[tx_buffer->pos]);
//LOG_DEBUG("REINIT %x\n", to_send);
//LOG_DEBUG("SENDADDR %x\n", output_ptr);
XUartLite_Send(&UartLite, output_ptr, to_send);
}
}
}
int main(int argc, char *argv[]) {
caught_termination = 0;
if (signal(SIGINT, sig_handler) == SIG_ERR) {
LOG_ERROR("Can't catch SIGINT");
}
if (signal(SIGTERM, sig_handler) == SIG_ERR) {
LOG_ERROR("Can't catch SIGTERM");
}
if (argc < 3) {
LOG_ERROR("Usage: %s /dev/input /dev/output", argv[0]);
return 1;
}
char * inputdevice = argv[1];
char * outputdevice = argv[2];
// initialize mapped memory block
membase_init();
LOG_INFO("serving memory @ %016" PRIxPTR " via %s-> ->%s",
(uintptr_t)membase, inputdevice, outputdevice);
int inputdevicefd = open(inputdevice, O_RDWR | O_NONBLOCK);
// in general these are probably the same.
int outputdevicefd = inputdevicefd;
// but maybe not.
if (strcmp(inputdevice, outputdevice) != 0) {
outputdevicefd = open(outputdevice, O_RDWR | O_NONBLOCK);
}
Client client;
client.inputstream = cbuffer_new();
client.outputstream = cbuffer_new();
client.inputfd = inputdevicefd;
client.outputfd = outputdevicefd;
client.byte2word = bytebuffer_ctor(NULL, 0);
client.swapbytes = 0;
while (1) {
if (caught_termination) {
break;
}
bytebuffer_read_fd(
&(client.byte2word), client.inputfd, MAX_REQ_LEN);
if (client.byte2word.bufsize > 0) {
LOG_DEBUG("Processing %i bytes", client.byte2word.bufsize);
// Data available! Process the request.
CircularBuffer *clibuf = client.inputstream;
ByteBuffer* byte2word = &(client.byte2word);
size_t nwords = byte2word->bufsize / sizeof(uint32_t);
int append_ret = cbuffer_append(clibuf, byte2word->buf, nwords);
if (append_ret == 0) {
bytebuffer_del_front(byte2word, nwords * sizeof(uint32_t));
}
ipbus_process_input_stream(&client);
// write out any response
cbuffer_write_fd(client.outputstream,
client.outputfd,
cbuffer_size(client.outputstream));
}
}
if (inputdevicefd != outputdevicefd) {
close(outputdevicefd);
}
close(inputdevicefd);
membase_close();
LOG_INFO("goodbye!\n");
return 0;
}
/* Returns number of free elements*/
uint64_t cbuffer_available(CircularBuffer *cb)
{
return (cbuffer_size(cb) - cbuffer_used(cb));
}
int main() {
xil_printf("Master SPI oRSC echo test\n");
// initialize stdout.
init_platform();
tx_buffer = cbuffer_new();
rx_buffer = cbuffer_new();
spi_stream = spi_stream_init(
tx_buffer, rx_buffer,
DoSpiTransfer, // callback which triggers a SPI transfer
0);
int Status;
XSpi_Config *ConfigPtr; /* Pointer to Configuration data */
/*
* Initialize the SPI driver so that it is ready to use.
*/
ConfigPtr = XSpi_LookupConfig(SPI_DEVICE_ID);
if (ConfigPtr == NULL) {
xil_printf ("Error: could not lookup SPI configuration\n");
return XST_DEVICE_NOT_FOUND;
}
Status = XSpi_CfgInitialize(&SpiInstance, ConfigPtr,
ConfigPtr->BaseAddress);
if (Status != XST_SUCCESS) {
xil_printf("Error: could not initialize the SPI device\n");
return XST_FAILURE;
}
Status = XSpi_SelfTest(&SpiInstance);
if (Status != XST_SUCCESS) {
xil_printf("Error: The SPI self test failed.\n");
return XST_FAILURE;
}
/*
* Connect the Spi device to the interrupt subsystem such that
* interrupts can occur. This function is application specific.
*/
Status = SpiSetupIntrSystem(&IntcInstance, &SpiInstance, SPI_IRPT_INTR);
if (Status != XST_SUCCESS) {
xil_printf("Error: Could not setup interrupt system.\n");
return XST_FAILURE;
}
/*
* Set the Spi device as a master.
*/
Status = XSpi_SetOptions(&SpiInstance, XSP_MASTER_OPTION);
if (Status != XST_SUCCESS) {
xil_printf("Error: Could not set as master\n");
return XST_FAILURE;
}
// Go!
XSpi_Start(&SpiInstance);
// Note: to disable interrupt, do: XIntc_Disconnect(&IntcInstance,
// SPI_IRPT_INTR);
u32 expected_rx = 0;
u32 current_tx = 0;
while (1) {
// fill up the transmit buffer
while (cbuffer_freespace(tx_buffer)) {
cbuffer_push_back(tx_buffer, current_tx++);
}
// check to make sure the received buffer is what we expect
while (cbuffer_size(rx_buffer)) {
u32 front = cbuffer_value_at(rx_buffer, 0);
if (front != expected_rx) {
//xil_printf("Error: expected %lx, got %lx!\n", expected_rx, front);
xil_printf("Error: data value\n");
}
expected_rx++;
cbuffer_deletefront(rx_buffer, 1);
}
}
return 0;
}
static char* test_ram1()
{
CircularBuffer* pc_input = cbuffer_new();
CircularBuffer* pc_output = cbuffer_new();
CircularBuffer* orsc_input = cbuffer_new();
CircularBuffer* orsc_output = cbuffer_new();
VMEStream *pc_stream = vmestream_initialize_heap(pc_input, pc_output, 1);
VMEStream *orsc_stream = malloc(sizeof(VMEStream));
orsc_stream->input = orsc_input;
orsc_stream->output = orsc_output;
orsc_stream->local_send_size = pc_stream->remote_send_size;
orsc_stream->local_recv_size = pc_stream->remote_recv_size;
orsc_stream->remote_send_size = pc_stream->local_send_size;
orsc_stream->remote_recv_size = pc_stream->local_recv_size;
orsc_stream->recv_data = pc_stream->send_data;
orsc_stream->send_data = pc_stream->recv_data;
orsc_stream->MAXRAM = pc_stream->MAXRAM;
for (uint32_t i = 0; i < 20; ++i) {
cbuffer_push_back(pc_input, 0xDEADBEEF + i);
cbuffer_push_back(orsc_input, 0xBEEFCAFE + i);
}
// initial transfer
vmestream_transfer_data(pc_stream);
// transfer data
vmestream_transfer_data(orsc_stream);
vmestream_transfer_data(pc_stream);
mu_assert("Error: orsc_output.pop != DEADBEEF", cbuffer_pop_front(orsc_output) == 0xDEADBEEF);
mu_assert("Error: pc_output.pop != BEEFCAFE", cbuffer_pop_front(pc_output) == 0xBEEFCAFE);
// extra transfer is needed to reset the size registers
// to zero to prepare for another transfer
vmestream_transfer_data(orsc_stream);
vmestream_transfer_data(pc_stream);
// transfer data
vmestream_transfer_data(orsc_stream);
vmestream_transfer_data(pc_stream);
mu_assert("Error: orsc_output.pop != DEADBEEF + 1", cbuffer_pop_front(orsc_output) == 0xDEADBEEF + 1);
mu_assert("Error: pc_output.pop != BEEFCAFE + 1", cbuffer_pop_front(pc_output) == 0xBEEFCAFE + 1);
/*
printf("pc_output.size: %d\n", cbuffer_size(pc_output));
printf("orsc_output.size: %d\n", cbuffer_size(orsc_output));
printf("pc_input.size: %d\n", cbuffer_size(pc_input));
printf("orsc_input.size: %d\n", cbuffer_size(orsc_input));
*/
mu_assert("Error: pc_output.size != 0", cbuffer_size(pc_output) == 0);
mu_assert("Error: orsc_output.size != 0", cbuffer_size(orsc_output) == 0);
mu_assert("Error: pc_input.size != 18", cbuffer_size(pc_input) == 18);
mu_assert("Error: orsc_input.size != 18", cbuffer_size(orsc_input) == 18);
// transfer on pc_stream 2x in a row. Nothing should happen.
vmestream_transfer_data(pc_stream);
mu_assert("Error: pc_output.size != 0", cbuffer_size(pc_output) == 0);
mu_assert("Error: orsc_output.size != 0", cbuffer_size(orsc_output) == 0);
mu_assert("Error: pc_input.size != 18", cbuffer_size(pc_input) == 18);
mu_assert("Error: orsc_input.size != 18", cbuffer_size(orsc_input) == 18);
// reset
vmestream_transfer_data(orsc_stream);
vmestream_transfer_data(pc_stream);
vmestream_transfer_data(orsc_stream);
mu_assert("Error: pc_output.size != 0", cbuffer_size(pc_output) == 0);
mu_assert("Error: orsc_output.size != 1", cbuffer_size(orsc_output) == 1);
mu_assert("Error: pc_input.size != 17", cbuffer_size(pc_input) == 17);
mu_assert("Error: orsc_input.size != 17", cbuffer_size(orsc_input) == 17);
vmestream_destroy_heap(pc_stream);
free(orsc_stream);
cbuffer_free(pc_input);
cbuffer_free(orsc_input);
cbuffer_free(pc_output);
cbuffer_free(orsc_output);
return 0;
}
static char *test_ram1()
{
// local application buffers
CircularBuffer *tx1 = cbuffer_new();
CircularBuffer *rx1 = cbuffer_new();
CircularBuffer *tx2 = cbuffer_new();
CircularBuffer *rx2 = cbuffer_new();
VMEStream *test1 = vmestream_initialize(tx1, rx1, 1);
VMEStream *test2 = malloc(sizeof(VMEStream));
test2->input = tx2;
test2->output = rx2;
test2->rx_size = test1->tx_size;
test2->tx_size = test1->rx_size;
test2->rx_data = test1->tx_data;
test2->tx_data = test1->rx_data;
test2->MAXRAM = test1->MAXRAM;
for (unsigned int i = 0; i < 20; ++i) {
// put some output data on host #1
cbuffer_push_back(tx1, 0xDEADBEEF + i);
// put some output data on host #2
cbuffer_push_back(tx2, 0xBEEFCAFE + i);
}
// do a transfer
vmestream_transfer_data(test1); // step 1
vmestream_transfer_data(test2); // step 2
// host #2 has received data, since host #1 filled it's TX buffer in step 1
// and host #2 can read it out in step 2
mu_assert("Error: 0xDEADBEEF != rx2.pop", 0xDEADBEEF == cbuffer_pop_front(rx2));
vmestream_transfer_data(test1); // step 3
// now host #1 can read the data loaded by host #2 in step 2
mu_assert("Error: 0xBEEFCAFE != rx1.pop", 0xBEEFCAFE == cbuffer_pop_front(rx1));
// do another transfer
vmestream_transfer_data(test2);
vmestream_transfer_data(test1);
mu_assert("Error: 0xBEEFCAFE+1 != rx1.pop", 0xBEEFCAFE + 1 == cbuffer_pop_front(rx1));
mu_assert("Error: 0xDEADBEEF+1 != rx2.pop", 0xDEADBEEF + 1 == cbuffer_pop_front(rx2));
// We have consumed all received data (via pop). There is a word of
// data in limbo for host #1
mu_assert("Error: 0 != rx1.size", 0 == cbuffer_size(rx1));
mu_assert("Error: 0 != rx2.size", 0 == cbuffer_size(rx2));
mu_assert("Error: 17 != tx1.size", 17 == cbuffer_size(tx1));
mu_assert("Error: 18 != tx2.size", 18 == cbuffer_size(tx2));
// call transfer on #1 twice in a row. Since it's still waiting for
// #2 to read the data, nothing happens.
vmestream_transfer_data(test1);
mu_assert("Error: 0 != rx1.size", 0 == cbuffer_size(rx1));
mu_assert("Error: 0 != rx2.size", 0 == cbuffer_size(rx2));
mu_assert("Error: 17 != tx1.size", 17 == cbuffer_size(tx1));
mu_assert("Error: 18 != tx2.size", 18 == cbuffer_size(tx2));
// #2 receives limbo data, puts one of it's words in limbo.
vmestream_transfer_data(test2);
mu_assert("Error: 0 != rx1.size", 0 == cbuffer_size(rx1));
mu_assert("Error: 1 != rx2.size", 1 == cbuffer_size(rx2));
mu_assert("Error: 17 != tx1.size", 17 == cbuffer_size(tx1));
mu_assert("Error: 17 != tx2.size", 17 == cbuffer_size(tx2));
// free memory
vmestream_destroy(test1);
free(test2);
cbuffer_free(tx1);
cbuffer_free(rx1);
cbuffer_free(tx2);
cbuffer_free(rx2);
return 0;
}
/**
* Overload buffer test
*/
static char *test_buf()
{
// local application buffers
CircularBuffer *tx1 = cbuffer_new();
CircularBuffer *rx1 = cbuffer_new();
CircularBuffer *tx2 = cbuffer_new();
CircularBuffer *rx2 = cbuffer_new();
VMEStream *test1 = vmestream_initialize(tx1, rx1, 32);
VMEStream *test2 = malloc(sizeof(VMEStream));
test2->input = tx2;
test2->output = rx2;
test2->rx_size = test1->tx_size;
test2->tx_size = test1->rx_size;
test2->rx_data = test1->tx_data;
test2->tx_data = test1->rx_data;
test2->MAXRAM = test1->MAXRAM;
cbuffer_push_back(rx2, 0xDEADBEEF);
for (int i = 0; i < 510; i++) {
cbuffer_push_back(rx2, 0xBEEFCAFE);
}
cbuffer_push_back(tx1, 0xBEEFCAFE + 1);
cbuffer_push_back(tx1, 0xBEEFCAFE + 2);
cbuffer_push_back(tx1, 0xBEEFCAFE + 3);
cbuffer_push_back(tx1, 0xBEEFCAFE + 4);
mu_assert("Error: rx2 should have no space left",
cbuffer_freespace(rx2) == 0);
// sanity check
mu_assert_eq("Error: output size != 4", cbuffer_size(tx1), 4);
// do several transfers
vmestream_transfer_data(test1);
vmestream_transfer_data(test2);
vmestream_transfer_data(test1);
vmestream_transfer_data(test2);
// no data should have been transferred
mu_assert_eq("Error: tx_size != 4", *(test1->tx_size), 4);
mu_assert("Error: rx2.pop != 0xDEADBEEF", 0xDEADBEEF == cbuffer_pop_front(rx2));
cbuffer_pop_front(rx2);
cbuffer_pop_front(rx2);
// popping off rx2 should have freed 3 words, but not enough to transfer all
// four
vmestream_transfer_data(test1);
vmestream_transfer_data(test2);
mu_assert_eq("Error: tx_size != 4", *(test1->tx_size), 4);
mu_assert("Errrr: rx2.pop not 0xBEEFCAFE", 0xBEEFCAFE == cbuffer_pop_front(rx2));
cbuffer_pop_front(rx2);
// now there is enough room for all the limbo data to be transferred to rx2
vmestream_transfer_data(test1);
vmestream_transfer_data(test2);
mu_assert("Error: tx_size != 0", *(test1->tx_size) == 0);
mu_assert("Error: tx1 not empty", 0 == cbuffer_size(tx1));
for (int i = 0; i < 4; ++i) {
mu_assert_eq("Unexpected data transferred",
cbuffer_value_at(rx2, cbuffer_size(rx2) - 4 + i), 0xBEEFCAFE + i + 1);
}
// free memory
vmestream_destroy(test1);
free(test2);
cbuffer_free(tx1);
cbuffer_free(rx1);
cbuffer_free(tx2);
cbuffer_free(rx2);
return 0;
}
