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dcd_msp430x5xx: Implement transmit_packet for nonzero endpoints. Untested.

This commit is contained in:
William D. Jones 2019-09-29 02:43:05 -04:00
parent 2247f132ca
commit 838b431fac
1 changed files with 37 additions and 23 deletions
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60
src/portable/ti/msp430x5xx/dcd_msp430x5xx.c
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@ -382,31 +382,31 @@ static void transmit_packet(uint8_t ep_num)
{
xfer_ctl_t * xfer = XFER_CTL_BASE(ep_num, TUSB_DIR_IN);
// First, determine whether we should even send a packet or finish
// up the xfer.
bool zlp = (xfer->total_len == 0); // By necessity, xfer->total_len will
// equal xfer->queued_len for ZLPs.
// Of course a ZLP is a short packet.
if((!zlp && (xfer->total_len == xfer->queued_len)) || xfer->short_packet)
{
dcd_event_xfer_complete(0, ep_num, xfer->queued_len, XFER_RESULT_SUCCESS, true);
return;
}
// Then actually commit to transmit a packet.
uint8_t * base = (xfer->buffer + xfer->queued_len);
uint16_t remaining = xfer->total_len - xfer->queued_len;
uint8_t xfer_size = (xfer->max_size < xfer->total_len) ? xfer->max_size : remaining;
xfer->queued_len += xfer_size;
if(xfer_size < xfer->max_size)
{
// Next "xfer complete interrupt", the transfer will end.
xfer->short_packet = true;
}
if(ep_num == 0)
{
// First, determine whether we should even send a packet or finish
// up the xfer.
bool zlp = (xfer->total_len == 0); // By necessity, xfer->total_len will
// equal xfer->queued_len for ZLPs.
// Of course a ZLP is a short packet.
if((!zlp && (xfer->total_len == xfer->queued_len)) || xfer->short_packet)
{
dcd_event_xfer_complete(0, ep_num, xfer->queued_len, XFER_RESULT_SUCCESS, true);
return;
}
// Then actually commit to transmit a packet.
uint8_t * base = (xfer->buffer + xfer->queued_len);
uint16_t remaining = xfer->total_len - xfer->queued_len;
uint8_t xfer_size = (xfer->max_size < xfer->total_len) ? xfer->max_size : remaining;
xfer->queued_len += xfer_size;
if(xfer_size < xfer->max_size)
{
// Next "xfer complete interrupt", the transfer will end.
xfer->short_packet = true;
}
volatile uint8_t * ep0in_buf = &USBIEP0BUF;
for(int i = 0; i < xfer_size; i++)
{
@ -416,6 +416,20 @@ static void transmit_packet(uint8_t ep_num)
USBIEPCNT_0 = (USBIEPCNT_0 & 0xF0) + xfer_size;
USBIEPCNT_0 &= ~NAK;
}
else
{
ep_regs_t ep_regs = EP_REGS(ep_num, TUSB_DIR_IN);
uint16_t in_buf_base = USBSTABUFF + (ep_regs[BBAX] << 3);
volatile uint8_t * ep_buf = (volatile uint8_t *) (in_buf_base);
for(int i = 0; i < xfer_size; i++)
{
ep_buf[i] = base[i];
}
ep_regs[BCTX] = (ep_regs[BCTX] & 0xF0) + xfer_size;
ep_regs[BCTX] &= ~NAK;
}
}
static void handle_setup_packet(void)