Hello.
Felipe Balbi wrote:
cppi_interrupt 1173: CPPI IRQ Tx0 Rx1
cppi_dump_rx 378: RX DMA0/K: 0 left, csr 2003, 00000000 H00000000
S86eb78a0 C86eb78a0, B879eea00 L02000000 00000200 .. 86eb78a0
cppi_rx_scan 1046: C/RXBD 86eb78a0: nxt 00000000 buf 879ee800 off.len
00000200 opt.len d0000200 (0)
cppi_dump_rx 378: RX DMA0/completed: 0 left, csr 2003, 00000000
H00000000 S86eb78a0 C86eb78a0, B879eea00 L02000000 00000200 .. 86eb78a0
musb_g_rx 763: <== ep1out, rxcsr 2003 (dma) c6efdcc0
musb_g_rx 806: RXCSR1 0003, dma off, 0003, len 512, req c6efdcc0
musb_g_giveback 143: ep1out done request c6efdcc0, 512/512
gs_read_complete: req c6efdcc0
cppi_next_rx_segment 832: RX DMA0 seg, maxp 512 onepacket bds 1 (cnt
0) dma 0x879eec00 len 512 0/512
RXBD/S 86eb78c0: nxt 00000000 buf 879eec00 off.blen 00000200 opt.plen
e0000200
cppi_dump_rx 378: RX DMA0/S: 3 left, csr 0003, 00000000 H86eb78c0
S86eb78a0 C86eb78a0, B879eea00 L02000000 00000200 .. 86eb78a0
davinci_interrupt 292: IRQ 00000000
ttyGS 512 bytes to tty (c C - ... 0x2e 0x0a)
musb_gadget_queue 1148: <== to ep1out request=c6efdcc0
Sergei, do you see anything fishy wrt CPPI dma ??
Unfortunately, I'm not an expert in CPPI 3.0 DMA code...
WBR, Sergei
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