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cleaned up

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This commit is contained in:
Markus Fröschle
2014-01-02 06:59:15 +00:00
parent c3e8171329
commit 310f612884
1 changed files with 92 additions and 2 deletions
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94
dma/dma.c
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@@ -135,16 +135,19 @@ int dma_set_initiator(int initiator)
| MCF_DMA_IMCR_IMC16_FEC0RX; | MCF_DMA_IMCR_IMC16_FEC0RX;
used_reqs[16] = DMA_FEC0_RX; used_reqs[16] = DMA_FEC0_RX;
break; break;
case DMA_FEC0_TX: case DMA_FEC0_TX:
MCF_DMA_IMCR = (MCF_DMA_IMCR & ~MCF_DMA_IMCR_IMC17(3)) MCF_DMA_IMCR = (MCF_DMA_IMCR & ~MCF_DMA_IMCR_IMC17(3))
| MCF_DMA_IMCR_IMC17_FEC0TX; | MCF_DMA_IMCR_IMC17_FEC0TX;
used_reqs[17] = DMA_FEC0_TX; used_reqs[17] = DMA_FEC0_TX;
break; break;
case DMA_FEC1_RX: case DMA_FEC1_RX:
MCF_DMA_IMCR = (MCF_DMA_IMCR & ~MCF_DMA_IMCR_IMC20(3)) MCF_DMA_IMCR = (MCF_DMA_IMCR & ~MCF_DMA_IMCR_IMC20(3))
| MCF_DMA_IMCR_IMC20_FEC1RX; | MCF_DMA_IMCR_IMC20_FEC1RX;
used_reqs[20] = DMA_FEC1_RX; used_reqs[20] = DMA_FEC1_RX;
break; break;
case DMA_FEC1_TX: case DMA_FEC1_TX:
if (used_reqs[21] == 0) if (used_reqs[21] == 0)
{ {
@@ -165,8 +168,13 @@ int dma_set_initiator(int initiator)
used_reqs[31] = DMA_FEC1_TX; used_reqs[31] = DMA_FEC1_TX;
} }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot found\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
case DMA_DREQ1: case DMA_DREQ1:
if (used_reqs[29] == 0) if (used_reqs[29] == 0)
{ {
@@ -181,8 +189,13 @@ int dma_set_initiator(int initiator)
used_reqs[21] = DMA_DREQ1; used_reqs[21] = DMA_DREQ1;
} }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
case DMA_CTM0: case DMA_CTM0:
if (used_reqs[24] == 0) if (used_reqs[24] == 0)
{ {
@@ -191,8 +204,13 @@ int dma_set_initiator(int initiator)
used_reqs[24] = DMA_CTM0; used_reqs[24] = DMA_CTM0;
} }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
case DMA_CTM1: case DMA_CTM1:
if (used_reqs[25] == 0) if (used_reqs[25] == 0)
{ {
@@ -201,8 +219,13 @@ int dma_set_initiator(int initiator)
used_reqs[25] = DMA_CTM1; used_reqs[25] = DMA_CTM1;
} }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
case DMA_CTM2: case DMA_CTM2:
if (used_reqs[26] == 0) if (used_reqs[26] == 0)
{ {
@@ -211,8 +234,13 @@ int dma_set_initiator(int initiator)
used_reqs[26] = DMA_CTM2; used_reqs[26] = DMA_CTM2;
} }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
case DMA_CTM3: case DMA_CTM3:
if (used_reqs[27] == 0) if (used_reqs[27] == 0)
{ {
@@ -221,8 +249,13 @@ int dma_set_initiator(int initiator)
used_reqs[27] = DMA_CTM3; used_reqs[27] = DMA_CTM3;
} }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
case DMA_CTM4: case DMA_CTM4:
if (used_reqs[28] == 0) if (used_reqs[28] == 0)
{ {
@@ -231,8 +264,13 @@ int dma_set_initiator(int initiator)
used_reqs[28] = DMA_CTM4; used_reqs[28] = DMA_CTM4;
} }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
case DMA_CTM5: case DMA_CTM5:
if (used_reqs[29] == 0) if (used_reqs[29] == 0)
{ {
@@ -241,8 +279,13 @@ int dma_set_initiator(int initiator)
used_reqs[29] = DMA_CTM5; used_reqs[29] = DMA_CTM5;
} }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
case DMA_CTM6: case DMA_CTM6:
if (used_reqs[30] == 0) if (used_reqs[30] == 0)
{ {
@@ -251,8 +294,13 @@ int dma_set_initiator(int initiator)
used_reqs[30] = DMA_CTM6; used_reqs[30] = DMA_CTM6;
} }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
case DMA_CTM7: case DMA_CTM7:
if (used_reqs[31] == 0) if (used_reqs[31] == 0)
{ {
@@ -261,8 +309,13 @@ int dma_set_initiator(int initiator)
used_reqs[31] = DMA_CTM7; used_reqs[31] = DMA_CTM7;
} }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
case DMA_USBEP4: case DMA_USBEP4:
if (used_reqs[26] == 0) if (used_reqs[26] == 0)
{ {
@@ -271,8 +324,13 @@ int dma_set_initiator(int initiator)
used_reqs[26] = DMA_USBEP4; used_reqs[26] = DMA_USBEP4;
} }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
case DMA_USBEP5: case DMA_USBEP5:
if (used_reqs[27] == 0) if (used_reqs[27] == 0)
{ {
@@ -281,8 +339,13 @@ int dma_set_initiator(int initiator)
used_reqs[27] = DMA_USBEP5; used_reqs[27] = DMA_USBEP5;
} }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
case DMA_USBEP6: case DMA_USBEP6:
if (used_reqs[28] == 0) if (used_reqs[28] == 0)
{ {
@@ -300,8 +363,13 @@ int dma_set_initiator(int initiator)
| MCF_DMA_IMCR_IMC28_PSC2RX; | MCF_DMA_IMCR_IMC28_PSC2RX;
used_reqs[28] = DMA_PSC2_RX; } used_reqs[28] = DMA_PSC2_RX; }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
case DMA_PSC2_TX: case DMA_PSC2_TX:
if (used_reqs[29] == 0) if (used_reqs[29] == 0)
{ {
@@ -310,8 +378,13 @@ int dma_set_initiator(int initiator)
used_reqs[29] = DMA_PSC2_TX; used_reqs[29] = DMA_PSC2_TX;
} }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
case DMA_PSC3_RX: case DMA_PSC3_RX:
if (used_reqs[30] == 0) if (used_reqs[30] == 0)
{ {
@@ -320,8 +393,13 @@ int dma_set_initiator(int initiator)
used_reqs[30] = DMA_PSC3_RX; used_reqs[30] = DMA_PSC3_RX;
} }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
case DMA_PSC3_TX: case DMA_PSC3_TX:
if (used_reqs[31] == 0) if (used_reqs[31] == 0)
{ {
@@ -330,10 +408,19 @@ int dma_set_initiator(int initiator)
used_reqs[31] = DMA_PSC3_TX; used_reqs[31] = DMA_PSC3_TX;
} }
else /* No empty slots */ else /* No empty slots */
{
dbg("%s: no free slot\r\n", __FUNCTION__);
return 1; return 1;
}
break; break;
default: default:
return 1; {
dbg("%s: don't know what to do\r\n", __FUNCTION__);
return 1;
}
} }
return 0; return 0;
} }
@@ -357,6 +444,8 @@ uint32_t dma_get_initiator(int requestor)
if (used_reqs[i] == requestor) if (used_reqs[i] == requestor)
return i; return i;
} }
dbg("%s: no initiator found for requestor %d\r\n", __FUNCTION__, requestor);
return 0; return 0;
} }
@@ -421,6 +510,7 @@ void dma_clear_channel(int channel)
{ {
dma_channel[channel].req = -1; dma_channel[channel].req = -1;
dma_channel[channel].handler = NULL; dma_channel[channel].handler = NULL;
dbg("%s: cleared DMA channel %d\r\n", __FUNCTION__, channel);
} }
} }
@@ -458,7 +548,7 @@ void dma_free_channel(int requestor)
{ {
uint32_t i; uint32_t i;
for (i=0; i < NCHANNELS; ++i) for (i = 0; i < NCHANNELS; ++i)
{ {
if (dma_channel[i].req == requestor) if (dma_channel[i].req == requestor)
{ {