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refactor rp2040 usb

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- make _hw_endpoint_xfer_sync and _hw_endpoint_start_next_buffer private
- drop prefix _ from _hw_endpoint_xfer_continue and
_hw_endpoint_reset_transfer
This commit is contained in:
hathach
2021-06-11 17:34:51 +07:00
parent 572d986a02
commit 5d6e381ef6
4 changed files with 48 additions and 112 deletions
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src/portable/raspberrypi/rp2040/hcd_rp2040.c
+3 -62
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@@ -123,7 +123,7 @@ static void hw_xfer_complete(struct hw_endpoint *ep, xfer_result_t xfer_result)
static void _handle_buff_status_bit(uint bit, struct hw_endpoint *ep)
{
usb_hw_clear->buf_status = bit;
bool done = _hw_endpoint_xfer_continue(ep);
bool done = hw_endpoint_xfer_continue(ep);
if (done)
{
hw_xfer_complete(ep, XFER_RESULT_SUCCESS);
@@ -485,65 +485,6 @@ bool hcd_edpt_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_endpoint_t const
return true;
}
// return true if double buffered
static bool xfer_start(struct hw_endpoint *ep, uint8_t *buffer, uint16_t total_len)
{
// Fill in info now that we're kicking off the hw
ep->total_len = total_len;
ep->len = 0;
// Limit by packet size
ep->user_buf = buffer;
// Buffer 0
ep->transfer_size = tu_min16(total_len, ep->wMaxPacketSize);
total_len -= ep->transfer_size;
// Buffer 1
ep->buf_1_len = tu_min16(total_len, ep->wMaxPacketSize);
total_len -= ep->buf_1_len;
ep->active = true;
// Write buffer control
// Buffer 0
uint32_t bufctrl = ep->transfer_size | USB_BUF_CTRL_AVAIL;
// Copy data to DPB if tx
if (!ep->rx)
{
// Copy data from user buffer to hw buffer
memcpy(ep->hw_data_buf, ep->user_buf, ep->transfer_size + ep->buf_1_len);
// Mark as full
bufctrl |= USB_BUF_CTRL_FULL | (ep->buf_1_len ? (USB_BUF_CTRL_FULL << 16) : 0);
}
// PID
bufctrl |= ep->next_pid ? USB_BUF_CTRL_DATA1_PID : USB_BUF_CTRL_DATA0_PID;
ep->next_pid ^= 1u;
if (ep->buf_1_len)
{
bufctrl |= (ep->buf_1_len | USB_BUF_CTRL_AVAIL) << 16;
bufctrl |= (ep->next_pid ? USB_BUF_CTRL_DATA1_PID : USB_BUF_CTRL_DATA0_PID) << 16;
ep->next_pid ^= 1u;
}
// determine which buffer is last
if (total_len == 0)
{
bufctrl |= USB_BUF_CTRL_LAST << (ep->buf_1_len ? 16 : 0);
}
print_bufctrl32(bufctrl);
_hw_endpoint_buffer_control_set_value32(ep, bufctrl);
return ep->buf_1_len > 0;
}
bool hcd_edpt_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr, uint8_t * buffer, uint16_t buflen)
{
(void) rhport;
@@ -567,7 +508,7 @@ bool hcd_edpt_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr, uint8_t *
// sie ctrl registers. Otherwise interrupt ep registers should
// already be configured
if (ep == &epx) {
_hw_endpoint_xfer_start(ep, buffer, buflen);
hw_endpoint_xfer_start(ep, buffer, buflen);
// That has set up buffer control, endpoint control etc
// for host we have to initiate the transfer
@@ -581,7 +522,7 @@ bool hcd_edpt_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr, uint8_t *
usb_hw->sie_ctrl = flags;
}else
{
_hw_endpoint_xfer_start(ep, buffer, buflen);
hw_endpoint_xfer_start(ep, buffer, buflen);
}
return true;