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Level meter LED code fixed up

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This commit is contained in:
Ross Owen
2014-08-29 12:44:56 +01:00
parent a5492e5f8a
commit 6eed7dfe6d
2 changed files with 18 additions and 7 deletions
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17
module_usb_audio/clocking/clockgen.xc
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@@ -194,7 +194,7 @@ static inline int badParity(unsigned x)
void VendorLedRefresh(unsigned levelData[]);
unsigned g_inputLevelData[NUM_USB_CHAN_IN];
extern int samples_to_host_inputs[NUM_USB_CHAN_IN];
extern int samples_to_host_inputs_buff[NUM_USB_CHAN_IN]; /* Audio transmitted to host i.e. dev inputs */
extern int samples_to_host_inputs_buff[NUM_USB_CHAN_IN];
#endif
int VendorAudCoreReqs(unsigned cmd, chanend c);
@@ -326,17 +326,24 @@ void clockGen (streaming chanend c_spdif_rx, chanend ?c_adat_rx, out port p, cha
for(int i = 0; i< NUM_USB_CHAN_IN; i++)
{
int tmp;
/* Read level data */
//g_inputLevelData[i] = samples_to_host_inputs[i];
asm("ldw %0, %1[%2]":"=r"(tmp):"r"(samples_to_host_inputs),"r"(i));
asm volatile("ldw %0, %1[%2]":"=r"(tmp):"r"((const int *)samples_to_host_inputs),"r"(i));
g_inputLevelData[i] = tmp;
/* Reset level data */
//samples_to_host_inputs[i] = 0;
asm("stw %0, %1[%2]"::"r"(0),"r"(samples_to_host_inputs),"r"(i));
asm volatile("stw %0, %1[%2]"::"r"(0),"r"((const int *)samples_to_host_inputs),"r"(i));
/* Guard against host polling slower than timer and missing peaks */
if(g_inputLevelData[i] > samples_to_host_inputs_buff[i])
asm volatile("ldw %0, %1[%2]":"=r"(tmp):"r"((const int *)samples_to_host_inputs_buff),"r"(i));
if (g_inputLevelData[i] > tmp)
//if(g_inputLevelData[i] > samples_to_host_inputs_buff[i])
{
samples_to_host_inputs_buff[i] = g_inputLevelData[i];
//samples_to_host_inputs_buff[i] = g_inputLevelData[i];
asm volatile("stw %0, %1[%2]"::"r"(tmp),"r"((const int *)samples_to_host_inputs),"r"(i));
}
}