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fomu: first stable working commit

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This appears to be stable, and works well.

Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
Sean Cross 2019-11-12 20:22:00 -08:00
parent 25d5628063
commit 3292920933
1 changed files with 27 additions and 23 deletions
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50
src/portable/foosn/fomu/dcd_fomu.c
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@ -109,7 +109,7 @@ void xfer_log_append(uint8_t ep_num, uint16_t sz) {
xfer_log[xfer_log_offset].ep_num = ep_num;
xfer_log[xfer_log_offset].size = sz;
xfer_log_offset++;
if (xfer_log_offset > sizeof(xfer_log)/sizeof(*xfer_log))
if (xfer_log_offset >= sizeof(xfer_log)/sizeof(*xfer_log))
xfer_log_offset = 0;
}
@ -117,7 +117,7 @@ void queue_log_append(uint8_t ep_num, uint16_t sz) {
queue_log[queue_log_offset].ep_num = ep_num;
queue_log[queue_log_offset].size = sz;
queue_log_offset++;
if (queue_log_offset > sizeof(queue_log)/sizeof(*queue_log))
if (queue_log_offset >= sizeof(queue_log)/sizeof(*queue_log))
queue_log_offset = 0;
}
@ -132,7 +132,7 @@ static void tx_more_data(void) {
usb_log[usb_log_offset].ep_num = tu_edpt_addr(tx_ep, TUSB_DIR_IN);
usb_log[usb_log_offset].size = added_bytes;
usb_log_offset++;
if (usb_log_offset > sizeof(usb_log)/sizeof(*usb_log))
if (usb_log_offset >= sizeof(usb_log)/sizeof(*usb_log))
usb_log_offset = 0;
// Updating the epno queues the data
@ -167,8 +167,6 @@ static void process_tx(void) {
if (!advance_tx_ep())
tx_active = false;
if ((xferred_bytes == 13) && (tx_buffer_max[tx_ep] == 512))
fomu_error(__LINE__);
xfer_log_append(tu_edpt_addr(xferred_ep, TUSB_DIR_IN), xferred_bytes);
dcd_event_xfer_complete(0, tu_edpt_addr(xferred_ep, TUSB_DIR_IN), xferred_bytes, XFER_RESULT_SUCCESS, true);
if (!tx_active)
@ -213,17 +211,19 @@ static void process_rx(void) {
total_read++;
if ((rx_buffer_offset[rx_ep] + current_offset) < rx_buffer_max[rx_ep]) {
usb_log[usb_log_offset].data[usb_log[usb_log_offset].size++] = c;
rx_buffer[rx_ep][current_offset++] = c;
if (rx_buffer[rx_ep] != (volatile uint8_t *)0xffffffff)
rx_buffer[rx_ep][current_offset++] = c;
}
}
usb_log_offset++;
if (usb_log_offset > sizeof(usb_log)/sizeof(*usb_log))
if (usb_log_offset >= sizeof(usb_log)/sizeof(*usb_log))
usb_log_offset = 0;
#if DEBUG
if (total_read > 66)
fomu_error(__LINE__);
if (total_read < 2)
fomu_error(__LINE__);
total_read = 2;
// fomu_error(__LINE__);
#endif
// Strip off the CRC16
@ -232,7 +232,11 @@ static void process_rx(void) {
rx_buffer_offset[rx_ep] = rx_buffer_max[rx_ep];
// If there's no more data, complete the transfer to tinyusb
if (rx_buffer_max[rx_ep] == rx_buffer_offset[rx_ep]) {
if ((rx_buffer_max[rx_ep] == rx_buffer_offset[rx_ep])
// ZLP with less than the total amount of data
|| ((total_read == 2) && ((rx_buffer_offset[rx_ep] & 63) == 0))
// Short read, but not a full packet
|| (((rx_buffer_offset[rx_ep] & 63) != 0) && (total_read < 66))) {
#if DEBUG
if (rx_buffer[rx_ep] == NULL)
fomu_error(__LINE__);
@ -249,10 +253,10 @@ static void process_rx(void) {
int i;
for (i = 0; i < 16; i++) {
if ((!!(ep_en_mask & (1 << i))) ^ (!!(rx_buffer[i]))) {
// uint8_t new_status = usb_out_status_read();
// // Another IRQ came in while we were processing, so ignore this endpoint.
// if ((new_status & 0x20) && ((new_status & 0xf) == i))
// continue;
uint8_t new_status = usb_out_status_read();
// Another IRQ came in while we were processing, so ignore this endpoint.
if ((new_status & 0x20) && ((new_status & 0xf) == i))
continue;
fomu_error(__LINE__);
}
}
@ -280,8 +284,8 @@ static void dcd_reset(void)
usb_in_ev_enable_write(0);
usb_out_ev_enable_write(0);
if (last_address)
asm("ebreak");
// if (last_address)
// asm("ebreak");
usb_address_write(0);
// Reset all three FIFO handlers
@ -300,9 +304,9 @@ static void dcd_reset(void)
tx_active = false;
// Enable all event handlers and clear their contents
usb_setup_ev_pending_write(-1);
usb_in_ev_pending_write(-1);
usb_out_ev_pending_write(-1);
usb_setup_ev_pending_write(0xff);
usb_in_ev_pending_write(0xff);
usb_out_ev_pending_write(0xff);
usb_in_ev_enable_write(1);
usb_out_ev_enable_write(1);
usb_setup_ev_enable_write(3);
@ -535,9 +539,9 @@ static void handle_in(void)
static void handle_reset(void)
{
uint8_t setup_pending = usb_setup_ev_pending_read() & usb_setup_ev_enable_read();
if (!(setup_pending & 2))
fomu_error(__LINE__);
// uint8_t setup_pending = usb_setup_ev_pending_read() & usb_setup_ev_enable_read();
// if (!(setup_pending & 2))
// fomu_error(__LINE__);
usb_setup_ev_pending_write(2);
// This event means a bus reset occurred. Reset everything, and
@ -592,8 +596,8 @@ void hal_dcd_isr(uint8_t rhport)
while ((next_ev = usb_next_ev_read())) {
switch (next_ev) {
case 1 << CSR_USB_NEXT_EV_IN_OFFSET:
handle_in();
break;
handle_in();
break;
case 1 << CSR_USB_NEXT_EV_OUT_OFFSET:
handle_out();
break;