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This commit is contained in:
hathach 2021-04-07 12:24:24 +07:00
parent 8ac156622d
commit d0fa4d5189
1 changed files with 7 additions and 7 deletions
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14
src/common/tusb_fifo.c
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@ -105,7 +105,7 @@ static inline uint16_t _ff_mod(uint16_t idx, uint16_t depth)
// Intended to be used to read from hardware USB FIFO in e.g. STM32 where all data is read from a constant address
// Code adapted from dcd_synopsis.c
// TODO generalize with configurable 1 byte or 4 byte each read
static void _tu_fifo_read_from_const_src_ptr_in_full_words(void * dst, const void * src, uint16_t len)
static void _ff_push_const_addr(void * dst, const void * src, uint16_t len)
{
volatile uint32_t * rx_fifo = (volatile uint32_t *) src;
@ -139,7 +139,7 @@ static void _tu_fifo_read_from_const_src_ptr_in_full_words(void * dst, const voi
}
// Intended to be used to write to hardware USB FIFO in e.g. STM32 where all data is written to a constant address in full word copies
static void _ff_pull_const_addr_in_full_words(void * dst, const uint8_t * src, uint16_t len)
static void _ff_pull_const_addr(void * dst, const uint8_t * src, uint16_t len)
{
volatile uint32_t * tx_fifo = (volatile uint32_t *) dst;
@ -200,7 +200,7 @@ static void _ff_push_n(tu_fifo_t* f, void const * data, uint16_t n, uint16_t wRe
if(n <= f->depth-wRel)
{
// Linear mode only
_tu_fifo_read_from_const_src_ptr_in_full_words(f->buffer + (wRel * f->item_size), data, n*f->item_size);
_ff_push_const_addr(f->buffer + (wRel * f->item_size), data, n*f->item_size);
}
else
{
@ -250,7 +250,7 @@ static void _ff_push_n(tu_fifo_t* f, void const * data, uint16_t n, uint16_t wRe
}
// Final part
if (nWrap > 0) _tu_fifo_read_from_const_src_ptr_in_full_words(dst_u8, data, nWrap);
if (nWrap > 0) _ff_push_const_addr(dst_u8, data, nWrap);
}
break;
}
@ -292,7 +292,7 @@ static void _ff_pull_n(tu_fifo_t* f, void* p_buffer, uint16_t n, uint16_t rRel,
if ( n <= nLin )
{
// Linear mode only
_ff_pull_const_addr_in_full_words(p_buffer, f->buffer + (rRel * f->item_size), n*f->item_size);
_ff_pull_const_addr(p_buffer, f->buffer + (rRel * f->item_size), n*f->item_size);
}
else
{
@ -305,7 +305,7 @@ static void _ff_pull_n(tu_fifo_t* f, void* p_buffer, uint16_t n, uint16_t rRel,
// Read data from linear part of buffer
uint16_t nLin_4n_bytes = nLin_bytes & 0xFFFC;
_ff_pull_const_addr_in_full_words(p_buffer, src, nLin_4n_bytes);
_ff_pull_const_addr(p_buffer, src, nLin_4n_bytes);
src += nLin_4n_bytes;
// There could be odd 1-3 bytes before the wrap-around boundary
@ -335,7 +335,7 @@ static void _ff_pull_n(tu_fifo_t* f, void* p_buffer, uint16_t n, uint16_t rRel,
}
// Read data wrapped part
if (nWrap_bytes > 0) _ff_pull_const_addr_in_full_words(p_buffer, src, nWrap_bytes);
if (nWrap_bytes > 0) _ff_pull_const_addr(p_buffer, src, nWrap_bytes);
}
break;