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use correct NBYTES_MAX for full and high speed

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hathach
2021-04-26 20:22:40 +07:00
parent c26875e70d
commit ba90a8cb79
2 changed files with 12 additions and 14 deletions
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25
src/portable/nxp/lpc_ip3511/dcd_lpc_ip3511.c
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@@ -76,16 +76,10 @@ typedef struct {
__I uint32_t EPTOGGLE; // Endpoint toggle register, offset: 0x34
} dcd_registers_t;
/* Although device controller are the same. Somehow only LPC134x can execute
* DMA with 1023 bytes for Bulk/Control. Others (11u, 51u, 54xxx) can only work
* with max 64 bytes
*/
// Max nbytes for each control/bulk/interrupt transfer
enum {
#if CFG_TUSB_MCU == OPT_MCU_LPC13XX
DMA_NBYTES_MAX = 1023
#else
DMA_NBYTES_MAX = 64
#endif
NBYTES_CBI_FULLSPEED_MAX = 64,
NBYTES_CBI_HIGHSPEED_MAX = 32767 // can be up to all 15-bit, but only tested with 4096
};
enum {
@@ -342,20 +336,23 @@ static void prepare_setup_packet(uint8_t rhport)
static void prepare_ep_xfer(uint8_t rhport, uint8_t ep_id, uint16_t buf_offset, uint16_t total_bytes)
{
uint16_t const nbytes = tu_min16(total_bytes, DMA_NBYTES_MAX);
_dcd.dma[ep_id].nbytes = nbytes;
uint16_t nbytes;
if (_dcd_controller[rhport].max_speed == TUSB_SPEED_FULL )
{
// TODO ISO FullSpeed can have up to 1023 bytes
nbytes = tu_min16(total_bytes, NBYTES_CBI_FULLSPEED_MAX);
_dcd.ep[ep_id][0].buffer_fs.offset = buf_offset;
_dcd.ep[ep_id][0].buffer_fs.nbytes = nbytes;
_dcd.ep[ep_id][0].buffer_fs.nbytes = nbytes;
}else
{
nbytes = tu_min16(total_bytes, NBYTES_CBI_HIGHSPEED_MAX);
_dcd.ep[ep_id][0].buffer_hs.offset = buf_offset;
_dcd.ep[ep_id][0].buffer_hs.nbytes = nbytes;
_dcd.ep[ep_id][0].buffer_hs.nbytes = nbytes;
}
_dcd.dma[ep_id].nbytes = nbytes;
_dcd.ep[ep_id][0].active = 1;
}