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esp32-s2_dfu
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fixed a OUT transfer did not completed multiple of the max packet size

This commit is contained in:
kkitayam 2021-03-27 16:03:04 +09:00
parent e48b2c681e
commit a1f1941c3f
1 changed files with 6 additions and 4 deletions
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6
src/portable/renesas/usba/dcd_usba.c
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@ -261,7 +261,7 @@ static int write_fifo(volatile void *fifo, pipe_state_t* pipe, unsigned mps)
return 0;
}
/* 1 if the number of bytes read is less than 64 bytes
/* 1 if the number of bytes read is less than mps bytes
* 0 otherwise */
static int read_fifo(volatile void *fifo, pipe_state_t* pipe, unsigned mps, size_t len)
{
@ -272,12 +272,14 @@ static int read_fifo(volatile void *fifo, pipe_state_t* pipe, unsigned mps, size
hw_fifo_t *reg = (hw_fifo_t*)fifo;
uintptr_t addr = pipe->addr;
while (len--) {
unsigned loop = len;
while (loop--) {
*(uint8_t *)addr = reg->u8;
++addr;
}
pipe->addr = addr;
if (rem < mps) return 1;
if (rem == len) return 2;
return 0;
}