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Use i_sync for sync signal to CS2100 interface when AUDIO_IO_TILE != PLL_REF_TILE and S/PDIF Rx is enabled.

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This commit is contained in:
xross
2022-06-27 19:15:56 +01:00
parent f3a149076b
commit 3e0f127b92
3 changed files with 82 additions and 18 deletions
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57
lib_xua/src/core/clocking/clockgen.xc
View File

@@ -40,10 +40,10 @@ static int clockInt[NUM_CLOCKS]; /* Interupt flag for
static int clockId[NUM_CLOCKS];
[[combinable]]
void PllRefPinTask(server interface sync_if i_sync, out port p_sync)
void PllRefPinTask(server interface sync_if i_sync, out port p_pll_ref)
{
static unsigned pinVal= 0;
p_sync <: pinVal;
static unsigned short pinTime = 0;
while(1)
{
@@ -51,7 +51,30 @@ void PllRefPinTask(server interface sync_if i_sync, out port p_sync)
{
case i_sync.toggle():
pinVal = ~pinVal;
p_sync <: pinVal;
p_pll_ref <: pinVal;
break;
case i_sync.init():
p_pll_ref <: pinVal @ pinTime;
pinTime += (unsigned short)(LOCAL_CLOCK_INCREMENT - (LOCAL_CLOCK_INCREMENT/2));
p_pll_ref @ pinTime <: pinVal;
break;
case i_sync.toggle_timed(int relative):
if (!relative)
{
pinTime += (short) LOCAL_CLOCK_INCREMENT;
pinVal = !pinVal;
p_pll_ref @ pinTime <: pinVal;
}
else
{
p_pll_ref <: pinVal @ pinTime;
pinTime += (short) LOCAL_CLOCK_INCREMENT;
pinVal = !pinVal;
p_pll_ref @ pinTime <: pinVal;
}
break;
}
}
@@ -218,12 +241,19 @@ extern int samples_to_host_inputs_buff[NUM_USB_CHAN_IN];
int VendorAudCoreReqs(unsigned cmd, chanend c);
#pragma unsafe arrays
#if (AUDIO_IO_TILE == PLL_REF_TILE)
void clockGen (streaming chanend ?c_spdif_rx, chanend ?c_adat_rx, out port p, chanend c_dig_rx, chanend c_clk_ctl, chanend c_clk_int)
#else
void clockGen (streaming chanend ?c_spdif_rx, chanend ?c_adat_rx, client interface sync_if i_sync, chanend c_dig_rx, chanend c_clk_ctl, chanend c_clk_int)
#endif
{
timer t_local;
unsigned timeNextEdge, timeLastEdge, timeNextClockDetection;
#if (AUDIO_IO_TILE == PLL_REF_TILE)
unsigned pinVal = 0;
unsigned short pinTime;
#endif
unsigned clkMode = CLOCK_INTERNAL; /* Current clocking mode in operation */
unsigned tmp;
@@ -325,10 +355,15 @@ void clockGen (streaming chanend ?c_spdif_rx, chanend ?c_adat_rx, out port p, ch
outuint(c_dig_rx, 1);
#endif
#if (AUDIO_IO_TILE == PLL_REF_TILE)
/* Initial ref clock output and get timestamp */
p <: pinVal @ pinTime;
pinTime += (unsigned short)(LOCAL_CLOCK_INCREMENT - (LOCAL_CLOCK_INCREMENT/2));
p @ pinTime <: pinVal;
#else
/* TODO ideally always use interface */
i_sync.init();
#endif
while(1)
{
@@ -451,11 +486,15 @@ void clockGen (streaming chanend ?c_spdif_rx, chanend ?c_adat_rx, out port p, ch
/* Generate local clock from timer */
case t_local when timerafter(timeNextEdge) :> void:
#if (AUDIO_IO_TILE == PLL_REF_TILE)
/* Setup next local clock edge */
pinTime += (short) LOCAL_CLOCK_INCREMENT;
pinVal = !pinVal;
p @ pinTime <: pinVal;
#else
/* TODO ideally always use interface */
i_sync.toggle_timed(0);
#endif
/* Record time of edge */
timeLastEdge = timeNextEdge;
@@ -584,11 +623,16 @@ void clockGen (streaming chanend ?c_spdif_rx, chanend ?c_adat_rx, out port p, ch
/* Setup for next edge */
timeNextEdge = spdifReceivedTime + LOCAL_CLOCK_INCREMENT + LOCAL_CLOCK_MARGIN;
#if (AUDIO_IO_TILE == PLL_REF_TILE)
/* Toggle edge */
p <: pinVal @ pinTime;
pinTime += (short) LOCAL_CLOCK_INCREMENT;
pinVal = !pinVal;
p @ pinTime <: pinVal;
#else
i_sync.toggle_timed(1);
#endif
/* Reset counters */
spdifCounters.receivedSamples = 0;
@@ -693,12 +737,15 @@ void clockGen (streaming chanend ?c_spdif_rx, chanend ?c_adat_rx, out port p, ch
/* Setup for next edge */
timeNextEdge = adatReceivedTime + LOCAL_CLOCK_INCREMENT + LOCAL_CLOCK_MARGIN;
#if (AUDIO_IO_TILE == PLL_REF_TILE)
/* Toggle edge */
p <: pinVal @ pinTime;
pinTime += LOCAL_CLOCK_INCREMENT;
pinVal = !pinVal;
p @ pinTime <: pinVal;
#else
i_sync.toggle_timed(1);
#endif
/* Reset counters */
adatCounters.receivedSamples = 0;

26
lib_xua/src/core/clocking/clocking.h
View File

@@ -4,6 +4,18 @@
#ifndef _CLOCKING_H_
#define _CLOCKING_H_
interface sync_if
{
void toggle();
void init();
void toggle_timed(int relative);
};
[[combinable]]
void PllRefPinTask(server interface sync_if i_sync, out port p_sync);
/** Clock generation and digital audio I/O handling.
*
* \param c_spdif_rx channel connected to S/PDIF receive thread
@@ -15,14 +27,10 @@
* \param c_clk_int channel connected to the decouple() thread for clock
interrupts
*/
void clockGen (streaming chanend ?c_spdif_rx, chanend ?c_adat_rx, out port p, chanend c_audio, chanend c_clk_ctl, chanend c_clk_int);
interface sync_if
{
void toggle();
};
[[combinable]]
void PllRefPinTask(server interface sync_if i_sync, out port p_sync);
#if (AUDIO_IO_TILE == PLL_REF_TILE)
void clockGen(streaming chanend ?c_spdif_rx, chanend ?c_adat_rx, client interface out port p_pll_ref, chanend c_audio, chanend c_clk_ctl, chanend c_clk_int);
#else
void clockGen(streaming chanend ?c_spdif_rx, chanend ?c_adat_rx, client interface sync_if i_sync, chanend c_audio, chanend c_clk_ctl, chanend c_clk_int);
#endif
#endif

17
lib_xua/src/core/main.xc
View File

@@ -432,6 +432,9 @@ void usb_audio_io(chanend ?c_aud_in,
#endif
, chanend c_pdm_pcm
#endif
#if (XUA_SPDIF_RX_EN && (AUDIO_IO_TILE != PLL_REF_TILE))
, client interface sync_if i_sync
#endif
)
{
#ifdef MIXER
@@ -503,9 +506,13 @@ void usb_audio_io(chanend ?c_aud_in,
#if (XUA_SPDIF_RX_EN || ADAT_RX)
{
/* ClockGen must currently run on same tile as AudioHub due to shared memory buffer */
thread_speed();
#if AUDIO_IO_TILE == PLL_REF_TILE
clockGen(c_spdif_rx, c_adat_rx, p_pll_ref, c_dig_rx, c_clk_ctl, c_clk_int);
#else
clockGen(c_spdif_rx, c_adat_rx, i_sync, c_dig_rx, c_clk_ctl, c_clk_int);
#endif
}
#endif
@@ -583,7 +590,7 @@ int main()
#endif
#endif
#if (XUA_SYNCMODE == XUA_SYNCMODE_SYNC)
#if (XUA_SYNCMODE == XUA_SYNCMODE_SYNC) || (XUA_SPDIF_RX_EN && (AUDIO_IO_TILE != PLL_REF_TILE))
interface sync_if i_sync;
#endif
@@ -593,9 +600,8 @@ int main()
{
USER_MAIN_CORES
#if (XUA_SYNCMODE == XUA_SYNCMODE_SYNC)
#if (XUA_SYNCMODE == XUA_SYNCMODE_SYNC) || (XUA_SPDIF_RX_EN && (AUDIO_IO_TILE != PLL_REF_TILE))
on tile[PLL_REF_TILE]: PllRefPinTask(i_sync, p_pll_ref);
#endif
on tile[XUD_TILE]:
par
@@ -649,6 +655,9 @@ int main()
, c_ds_output
#endif
, c_pdm_pcm
#endif
#if (XUA_SPDIF_RX_EN && (AUDIO_IO_TILE != PLL_REF_TILE))
, i_sync
#endif
);
}