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static uint | interp_index (interp_hw_t *interp) |
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| void | interp_claim_lane (interp_hw_t *interp, uint lane) |
| | Claim the interpolator lane specifiedUse this function to claim exclusive access to the specified interpolator lane. More...
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| void | interp_claim_lane_mask (interp_hw_t *interp, uint lane_mask) |
| | Claim the interpolator lanes specified in the mask. More...
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| void | interp_unclaim_lane (interp_hw_t *interp, uint lane) |
| | Release a previously claimed interpolator lane. More...
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| bool | interp_lane_is_claimed (interp_hw_t *interp, uint lane) |
| | Determine if an interpolator lane is claimed. More...
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| void | interp_unclaim_lane_mask (interp_hw_t *interp, uint lane_mask) |
| | Release previously claimed interpolator lanes. More...
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| static void | interp_config_set_shift (interp_config *c, uint shift) |
| | Set the interpolator shift valueSets the number of bits the accumulator is shifted before masking, on each iteration. More...
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| static void | interp_config_set_mask (interp_config *c, uint mask_lsb, uint mask_msb) |
| | Set the interpolator mask rangeSets the range of bits (least to most) that are allowed to pass through the interpolator. More...
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| static void | interp_config_set_cross_input (interp_config *c, bool cross_input) |
| | Enable cross inputAllows feeding of the accumulator content from the other lane back in to this lanes shift+mask hardware. This will take effect even if the interp_config_set_add_raw option is set as the cross input mux is before the shift+mask bypass. More...
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| static void | interp_config_set_cross_result (interp_config *c, bool cross_result) |
| | Enable cross resultsAllows feeding of the other lane’s result into this lane’s accumulator on a POP operation. More...
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| static void | interp_config_set_signed (interp_config *c, bool _signed) |
| | Set sign extensionEnables signed mode, where the shifted and masked accumulator value is sign-extended to 32 bits before adding to BASE1, and LANE1 PEEK/POP results appear extended to 32 bits when read by processor. More...
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| static void | interp_config_set_add_raw (interp_config *c, bool add_raw) |
| | Set raw add optionWhen enabled, mask + shift is bypassed for LANE0 result. This does not affect the FULL result. More...
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| static void | interp_config_set_blend (interp_config *c, bool blend) |
| | Set blend modeIf enabled, LANE1 result is a linear interpolation between BASE0 and BASE1, controlled by the 8 LSBs of lane 1 shift and mask value (a fractional number between 0 and 255/256ths) More...
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| static void | interp_config_set_clamp (interp_config *c, bool clamp) |
| | Set interpolator clamp mode (Interpolator 1 only)Only present on INTERP1 on each core. If CLAMP mode is enabled: More...
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| static void | interp_config_set_force_bits (interp_config *c, uint bits) |
| | Set interpolator Force bitsORed into bits 29:28 of the lane result presented to the processor on the bus. More...
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| static interp_config | interp_default_config (void) |
| | Get a default configuration. More...
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| static void | interp_set_config (interp_hw_t *interp, uint lane, interp_config *config) |
| | Send configuration to a laneIf an invalid configuration is specified (ie a lane specific item is set on wrong lane), depending on setup this function can panic. More...
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| static void | interp_set_force_bits (interp_hw_t *interp, uint lane, uint bits) |
| | Directly set the force bits on a specified laneThese bits are ORed into bits 29:28 of the lane result presented to the processor on the bus. There is no effect on the internal 32-bit datapath. More...
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| void | interp_save (interp_hw_t *interp, interp_hw_save_t *saver) |
| | Save the specified interpolator stateCan be used to save state if you need an interpolator for another purpose, state can then be recovered afterwards and continue from that point. More...
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| void | interp_restore (interp_hw_t *interp, interp_hw_save_t *saver) |
| | Restore an interpolator state. More...
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| static void | interp_set_base (interp_hw_t *interp, uint lane, uint32_t val) |
| | Sets the interpolator base register by lane. More...
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| static uint32_t | interp_get_base (interp_hw_t *interp, uint lane) |
| | Gets the content of interpolator base register by lane. More...
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| static void | interp_set_base_both (interp_hw_t *interp, uint32_t val) |
| | Sets the interpolator base registers simultaneouslyThe lower 16 bits go to BASE0, upper bits to BASE1 simultaneously. Each half is sign-extended to 32 bits if that lane’s SIGNED flag is set. More...
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| static void | interp_set_accumulator (interp_hw_t *interp, uint lane, uint32_t val) |
| | Sets the interpolator accumulator register by lane. More...
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| static uint32_t | interp_get_accumulator (interp_hw_t *interp, uint lane) |
| | Gets the content of the interpolator accumulator register by lane. More...
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| static uint32_t | interp_pop_lane_result (interp_hw_t *interp, uint lane) |
| | Read lane result, and write lane results to both accumulators to update the interpolator. More...
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| static uint32_t | interp_peek_lane_result (interp_hw_t *interp, uint lane) |
| | Read lane result. More...
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| static uint32_t | interp_pop_full_result (interp_hw_t *interp) |
| | Read lane result, and write lane results to both accumulators to update the interpolator. More...
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| static uint32_t | interp_peek_full_result (interp_hw_t *interp) |
| | Read lane result. More...
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| static void | interp_add_accumulater (interp_hw_t *interp, uint lane, uint32_t val) |
| | Add to accumulatorAtomically add the specified value to the accumulator on the specified lane. More...
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| static uint32_t | interp_get_raw (interp_hw_t *interp, uint lane) |
| | Get raw lane valueReturns the raw shift and mask value from the specified lane, BASE0 is NOT added. More...
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v1.5.0
