+ static const int with_diag = 0;
+
+ struct {
+ const char *desc;
+ void *bytes;
+ size_t nums, unit;
+ int is_fp, is_sign, is_be;
+ int scale, offset;
+ float *want;
+ } *item, items[] = {
+ /* Test to cover multiple values in an array, odd numbers. */
+ {
+ .desc = "float single input, native, value array",
+ .bytes = (float[]){ -12.9, -333.999, 0, 3.14, 29.7, 9898.12, },
+ .nums = 6, .unit = sizeof(float),
+ .is_fp = TRUE, .is_sign = FALSE, .is_be = host_be,
+ .scale = 1, .offset = 0,
+ .want = (float[]){ -12.9, -333.999, 0, 3.14, 29.7, 9898.12, },
+ },
+ /* Tests to cover floating point input data conversion. */
+ {
+ .desc = "float single input, native",
+ .bytes = (float[]){ 1.0, 2.0, 3.0, 4.0, },
+ .nums = 4, .unit = sizeof(float),
+ .is_fp = TRUE, .is_sign = FALSE, .is_be = host_be,
+ .scale = 1, .offset = 0,
+ .want = (float[]){ 1.0, 2.0, 3.0, 4.0, },
+ },
+ {
+ .desc = "float single input, big endian",
+ .bytes = (float[]){ 1.0, 2.0, 3.0, 4.0, },
+ .nums = 4, .unit = sizeof(float),
+ .is_fp = TRUE, .is_sign = FALSE, .is_be = TRUE,
+ .scale = 1, .offset = 0,
+ .want = (float[]){ 1.0, 2.0, 3.0, 4.0, },
+ },
+ {
+ .desc = "float single input, little endian",
+ .bytes = (float[]){ 1.0, 2.0, 3.0, 4.0, },
+ .nums = 4, .unit = sizeof(float),
+ .is_fp = TRUE, .is_sign = FALSE, .is_be = FALSE,
+ .scale = 1, .offset = 0,
+ .want = (float[]){ 1.0, 2.0, 3.0, 4.0, },
+ },
+ {
+ .desc = "float double input, native",
+ .bytes = (double[]){ 1.0, 2.0, 3.0, 4.0, },
+ .nums = 4, .unit = sizeof(double),
+ .is_fp = TRUE, .is_sign = FALSE, .is_be = host_be,
+ .scale = 1, .offset = 0,
+ .want = (float[]){ 1.0, 2.0, 3.0, 4.0, },
+ },
+ {
+ .desc = "float half input, unsupported, fake bytes",
+ .bytes = (uint16_t[]){ 0x1234, 0x5678, },
+ .nums = 2, .unit = sizeof(uint16_t),
+ .is_fp = TRUE, .is_sign = FALSE, .is_be = host_be,
+ .want = NULL,
+ },
+ {
+ .desc = "float quad input, unsupported, fake bytes",
+ .bytes = (uint64_t[]){ 0x0, 0x0, },
+ .nums = 1, .unit = 2 * sizeof(uint64_t),
+ .is_fp = TRUE, .is_sign = FALSE, .is_be = host_be,
+ .want = NULL,
+ },
+ /* Tests to cover integer input data conversion. */
+ {
+ .desc = "int u8 input",
+ .bytes = (uint8_t[]){ 1, 2, 3, 4, },
+ .nums = 4, .unit = sizeof(uint8_t),
+ .is_fp = FALSE, .is_sign = FALSE, .is_be = host_be,
+ .scale = 1, .offset = 0,
+ .want = (float[]){ 1.0, 2.0, 3.0, 4.0, },
+ },
+ {
+ .desc = "int i8 input",
+ .bytes = (int8_t[]){ -1, 2, -3, 4, },
+ .nums = 4, .unit = sizeof(int8_t),
+ .is_fp = FALSE, .is_sign = TRUE, .is_be = host_be,
+ .scale = 1, .offset = 0,
+ .want = (float[]){ -1.0, 2.0, -3.0, 4.0, },
+ },
+ {
+ .desc = "int u16 input, big endian",
+ .bytes = (uint16_t[]){ 1, 2, 3, 4, },
+ .nums = 4, .unit = sizeof(uint16_t),
+ .is_fp = FALSE, .is_sign = FALSE, .is_be = TRUE,
+ .scale = 1, .offset = 0,
+ .want = (float[]){ 1.0, 2.0, 3.0, 4.0, },
+ },
+ {
+ .desc = "int u16 input, little endian",
+ .bytes = (uint16_t[]){ 1, 2, 3, 4, },
+ .nums = 4, .unit = sizeof(uint16_t),
+ .is_fp = FALSE, .is_sign = FALSE, .is_be = FALSE,
+ .scale = 1, .offset = 0,
+ .want = (float[]){ 1.0, 2.0, 3.0, 4.0, },
+ },
+ {
+ .desc = "int i16 input, big endian",
+ .bytes = (int16_t[]){ 1, -2, 3, -4, },
+ .nums = 4, .unit = sizeof(int16_t),
+ .is_fp = FALSE, .is_sign = TRUE, .is_be = TRUE,
+ .scale = 1, .offset = 0,
+ .want = (float[]){ 1.0, -2.0, 3.0, -4.0, },
+ },
+ {
+ .desc = "int i16 input, little endian",
+ .bytes = (int16_t[]){ 1, -2, 3, -4, },
+ .nums = 4, .unit = sizeof(int16_t),
+ .is_fp = FALSE, .is_sign = TRUE, .is_be = FALSE,
+ .scale = 1, .offset = 0,
+ .want = (float[]){ 1.0, -2.0, 3.0, -4.0, },
+ },
+ {
+ .desc = "int u32 input, big endian",
+ .bytes = (uint32_t[]){ 1, 2, 3, 4, },
+ .nums = 4, .unit = sizeof(uint32_t),
+ .is_fp = FALSE, .is_sign = FALSE, .is_be = TRUE,
+ .scale = 1, .offset = 0,
+ .want = (float[]){ 1.0, 2.0, 3.0, 4.0, },
+ },
+ {
+ .desc = "int u32 input, little endian",
+ .bytes = (uint32_t[]){ 1, 2, 3, 4, },
+ .nums = 4, .unit = sizeof(uint32_t),
+ .is_fp = FALSE, .is_sign = FALSE, .is_be = FALSE,
+ .scale = 1, .offset = 0,
+ .want = (float[]){ 1.0, 2.0, 3.0, 4.0, },
+ },
+ {
+ .desc = "int i32 input, big endian",
+ .bytes = (int32_t[]){ 1, 2, -3, -4, },
+ .nums = 4, .unit = sizeof(int32_t),
+ .is_fp = FALSE, .is_sign = TRUE, .is_be = TRUE,
+ .scale = 1, .offset = 0,
+ .want = (float[]){ 1.0, 2.0, -3.0, -4.0, },
+ },
+ {
+ .desc = "int i32 input, little endian",
+ .bytes = (int32_t[]){ 1, 2, -3, -4, },
+ .nums = 4, .unit = sizeof(int32_t),
+ .is_fp = FALSE, .is_sign = TRUE, .is_be = FALSE,
+ .scale = 1, .offset = 0,
+ .want = (float[]){ 1.0, 2.0, -3.0, -4.0, },
+ },
+ {
+ .desc = "int u64 input, unsupported",
+ .bytes = (uint64_t[]){ 1, 2, 3, 4, },
+ .nums = 4, .unit = sizeof(uint64_t),
+ .is_fp = FALSE, .is_sign = FALSE, .is_be = TRUE,
+ .want = NULL,
+ },
+ /* Tests to cover scale/offset calculation. */
+ {
+ .desc = "float single input, scale + offset",
+ .bytes = (float[]){ 1.0, 2.0, 3.0, 4.0, },
+ .nums = 4, .unit = sizeof(float),
+ .is_fp = TRUE, .is_sign = FALSE, .is_be = host_be,
+ .scale = 3, .offset = 2,
+ .want = (float[]){ 5.0, 8.0, 11.0, 14.0, },
+ },
+ {
+ .desc = "int u8 input, scale + offset",
+ .bytes = (uint8_t[]){ 1, 2, 3, 4, },
+ .nums = 4, .unit = sizeof(uint8_t),
+ .is_fp = FALSE, .is_sign = FALSE, .is_be = TRUE,
+ .scale = 3, .offset = 2,
+ .want = (float[]){ 5.0, 8.0, 11.0, 14.0, },
+ },
+ };
+ const size_t max_floats = 6;
+ struct sr_channel ch = {
+ .index = 0,
+ .enabled = TRUE,
+ .type = SR_CHANNEL_LOGIC,
+ .name = "input",
+ };
+
+ size_t item_idx;
+ char item_text[32];
+ struct sr_datafeed_analog analog;
+ struct sr_analog_encoding encoding;
+ struct sr_analog_meaning meaning;
+ struct sr_analog_spec spec;
+ size_t byte_count, value_idx;
+ uint8_t f_in[max_floats * sizeof(double)], *byte_ptr;
+ float f_out[max_floats];