/**@brief Handler for SPI0 master events.
*
* @param[in] event SPI master event.
*/
void spi_master_0_event_handler(nrf_drv_spi_evt_type_t* event)
{
// uint32_t err_code = NRF_SUCCESS;
// uint32_t c_buff; // Temporarily store the buffer index of the buffer ready to be compressed
switch (*event)
{
// Transfer complete; store in buffer.
case NRF_DRV_SPI_EVENT_DONE:
nrf_drv_spi_uninit(&m_spi_master_0);
if (buffer_in(&db, &m_rx_data_spi[0]) == BUFFER_FULL) {
if (buffer_compress(db.buffer, db.item_cnt, transmission_buffer) != BUFFER_SUCCESS) {
// buffer_reset(&db);
printf("Error compressing data!\n");
}
intan_convert_channel++;
intan_convert_channel = intan_convert_channel % 32;
}
m_transfer_completed = true;
break;
default:
// No implementation needed.
break;
}
}
END_TEST
START_TEST(compress_success) {
const unsigned char expected_dest[] = {
0x78, 0x9c, 0x33, 0x34, 0x32, 0x36, 0x31, 0x35, 0x33, 0xb7,
0xb0, 0x34, 0x00, 0x00, 0x0b, 0x2c, 0x02, 0x0e
};
fail_unless(buffer_append(source, "1234567890", 10) == 0);
fail_unless(buffer_compress(source, dest) == 0);
fail_unless(buffer_get_size(dest) == 18);
fail_unless(memcmp(buffer_get_data(dest), expected_dest, 8) == 0);
}
static void
packet_send1(void)
{
u_char buf[8], *cp;
int i, padding, len;
u_int checksum;
u_int32_t rnd = 0;
/*
* If using packet compression, compress the payload of the outgoing
* packet.
*/
if (packet_compression) {
buffer_clear(&compression_buffer);
/* Skip padding. */
buffer_consume(&outgoing_packet, 8);
/* padding */
buffer_append(&compression_buffer, "\0\0\0\0\0\0\0\0", 8);
buffer_compress(&outgoing_packet, &compression_buffer);
buffer_clear(&outgoing_packet);
buffer_append(&outgoing_packet, buffer_ptr(&compression_buffer),
buffer_len(&compression_buffer));
}
/* Compute packet length without padding (add checksum, remove padding). */
len = buffer_len(&outgoing_packet) + 4 - 8;
/* Insert padding. Initialized to zero in packet_start1() */
padding = 8 - len % 8;
if (!send_context.plaintext) {
cp = buffer_ptr(&outgoing_packet);
for (i = 0; i < padding; i++) {
if (i % 4 == 0)
rnd = arc4random();
cp[7 - i] = rnd & 0xff;
rnd >>= 8;
}
}
END_TEST
START_TEST(compress_null_dest) {
fail_unless(buffer_compress(source, NULL) == -1);
}
