osmo-sdr/firmware/include/fast_source.h @ master
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#include <stdint.h>
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#include "req_ctx.h"
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/* Some thoughts:
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* If we're running at 1MS/s, and the USB-HS microframe occurs every 125uS, we
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* need to transfer 125 samples at eech microframe. 125 samples with 2
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* channels of 2 bytes equals 500 bytes.
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*/
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#define AUDDLoopRecDriver_SAMPLERATE 500000
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#define AUDDLoopRecDriver_NUMCHANNELS 2
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#define AUDDLoopRecDriver_BYTESPERSAMPLE 2
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#if 0
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#define AUDDLoopRecDriver_SAMPLESPERFRAME (AUDDLoopRecDriver_SAMPLERATE / 8000 \
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* AUDDLoopRecDriver_NUMCHANNELS)
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#else
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#define AUDDLoopRecDriver_SAMPLESPERFRAME (128 * AUDDLoopRecDriver_NUMCHANNELS)
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#endif
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#define AUDDLoopRecDriver_BYTESPERFRAME (AUDDLoopRecDriver_SAMPLESPERFRAME * \
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AUDDLoopRecDriver_BYTESPERSAMPLE)
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#include <usb/common/core/USBGenericRequest.h>
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extern unsigned char fastsource_interfaces[3]; |
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void fastsource_init(void); |
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void fastsource_start(void); |
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void fastsource_dump(void); |
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void usb_submit_req_ctx(struct req_ctx *rctx); |
