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| author | Sergey Alirzaev <zl29ah@gmail.com> | 2020-05-16 03:28:28 +0300 |
|---|---|---|
| committer | Steve Markgraf <steve@steve-m.de> | 2020-05-19 22:24:26 +0200 |
| commit | b82303f44fc8388817306235a673e0bfa671dd3f (patch) | |
| tree | fdedc1bb6353e533d7823b56928a2274c6ea1c13 /src | |
| parent | f05c961455f2c9aabce71ec3d9592199b07c47da (diff) | |
| download | osmo-fl2k-b82303f44fc8388817306235a673e0bfa671dd3f.tar.gz osmo-fl2k-b82303f44fc8388817306235a673e0bfa671dd3f.tar.bz2 osmo-fl2k-b82303f44fc8388817306235a673e0bfa671dd3f.zip | |
lib: implement enabling RGB332 mode
I've decided to provide a separate pointer for a raw buffer in case the
library user comes up with a non-RGB332 use case that avoids byte
rearrangement (and copying should be replaced with pulling from the
user's pointer in this case)
Diffstat (limited to 'src')
| -rw-r--r-- | src/libosmo-fl2k.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/src/libosmo-fl2k.c b/src/libosmo-fl2k.c index 9ebe130..2ac371e 100644 --- a/src/libosmo-fl2k.c +++ b/src/libosmo-fl2k.c @@ -204,6 +204,13 @@ int fl2k_deinit_device(fl2k_dev_t *dev) return r; } +int fl2k_set_rgb332(fl2k_dev_t *dev) +{ + uint32_t reg; + fl2k_read_reg(dev, 0x8004, ®); + return fl2k_write_reg(dev, 0x8004, reg | (1 << 25)); +} + static double fl2k_reg_to_freq(uint32_t reg) { double sample_clock, offset, offs_div; @@ -910,15 +917,20 @@ static void *fl2k_sample_worker(void *arg) xfer_info = (fl2k_xfer_info_t *)xfer->user_data; out_buf = (char *)xfer->buffer; - /* Re-arrange and copy bytes in buffer for DACs */ - fl2k_convert_r(out_buf, data_info.r_buf, dev->xfer_buf_len, - data_info.sampletype_signed ? 128 : 0); + if (data_info.raw_buf) { + /* Shove a pre-arranged buffer into the DACs */ + memcpy(out_buf, data_info.raw_buf, dev->xfer_buf_len); + } else { + /* Re-arrange and copy bytes in buffer for DACs */ + fl2k_convert_r(out_buf, data_info.r_buf, dev->xfer_buf_len, + data_info.sampletype_signed ? 128 : 0); - fl2k_convert_g(out_buf, data_info.g_buf, dev->xfer_buf_len, - data_info.sampletype_signed ? 128 : 0); + fl2k_convert_g(out_buf, data_info.g_buf, dev->xfer_buf_len, + data_info.sampletype_signed ? 128 : 0); - fl2k_convert_b(out_buf, data_info.b_buf, dev->xfer_buf_len, - data_info.sampletype_signed ? 128 : 0); + fl2k_convert_b(out_buf, data_info.b_buf, dev->xfer_buf_len, + data_info.sampletype_signed ? 128 : 0); + } xfer_info->seq = buf_cnt++; xfer_info->state = BUF_FILLED; |