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dcd_msp430x5xx: Implement receive_packet for all endpoints, correct 

some mistakes in transmit_packet.
This commit is contained in:
William D. Jones 2019-09-29 03:58:30 -04:00
parent 549ad1d9b6
commit b623e3023e
1 changed files with 64 additions and 4 deletions
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68
src/portable/ti/msp430x5xx/dcd_msp430x5xx.c
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@ -374,8 +374,69 @@ void dcd_edpt_clear_stall (uint8_t rhport, uint8_t ep_addr)
static void receive_packet(uint8_t ep_num)
{
(void) ep_num;
xfer_ctl_t * xfer = XFER_CTL_BASE(ep_num, TUSB_DIR_OUT);
ep_regs_t ep_regs = EP_REGS(ep_num, TUSB_DIR_OUT);
uint8_t xfer_size;
if(ep_num == 0)
{
xfer_size = USBOEPCNT_0 & 0x0F;
}
else
{
xfer_size = ep_regs[BCTX] & 0x3F;
}
uint16_t remaining = xfer->total_len - xfer->queued_len;
uint16_t to_recv_size;
if(remaining <= xfer->max_size) {
// Avoid buffer overflow.
to_recv_size = (xfer_size > remaining) ? remaining : xfer_size;
} else {
// Room for full packet, choose recv_size based on what the microcontroller
// claims.
to_recv_size = (xfer_size > xfer->max_size) ? xfer->max_size : xfer_size;
}
uint8_t * base = (xfer->buffer + xfer->queued_len);
if(ep_num == 0)
{
volatile uint8_t * ep0out_buf = &USBOEP0BUF;
for(uint16_t i = 0; i < to_recv_size; i++)
{
base[i] = ep0out_buf[i];
}
}
else
{
volatile uint8_t * ep_buf = &USBSTABUFF + (ep_regs[BBAX] << 3);
for(uint16_t i = 0; i < to_recv_size ; i++)
{
base[i] = ep_buf[i];
}
}
xfer->queued_len += xfer_size;
xfer->short_packet = (xfer_size < xfer->max_size);
if((xfer->total_len == xfer->queued_len) || xfer->short_packet)
{
dcd_event_xfer_complete(0, ep_num, xfer->queued_len, XFER_RESULT_SUCCESS, true);
}
else
{
// Schedule to receive another packet.
if(ep_num == 0)
{
USBOEPCNT_0 &= ~NAK;
}
else
{
ep_regs[BCTX] &= ~NAK;
}
}
}
static void transmit_packet(uint8_t ep_num)
@ -408,7 +469,7 @@ static void transmit_packet(uint8_t ep_num)
if(ep_num == 0)
{
volatile uint8_t * ep0in_buf = &USBIEP0BUF;
for(int i = 0; i < xfer_size; i++)
for(uint16_t i = 0; i < xfer_size; i++)
{
ep0in_buf[i] = base[i];
}
@ -419,9 +480,8 @@ static void transmit_packet(uint8_t ep_num)
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 = &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];