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double buffered work with host

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This commit is contained in:
hathach
2021-06-11 17:05:49 +07:00
parent 43656dc0a7
commit a1a03c92f6
4 changed files with 233 additions and 162 deletions
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103
src/portable/raspberrypi/rp2040/hcd_rp2040.c
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@@ -115,9 +115,9 @@ static void hw_xfer_complete(struct hw_endpoint *ep, xfer_result_t xfer_result)
// Mark transfer as done before we tell the tinyusb stack
uint8_t dev_addr = ep->dev_addr;
uint8_t ep_addr = ep->ep_addr;
uint total_len = ep->total_len;
uint xferred_len = ep->len;
hw_endpoint_reset_transfer(ep);
hcd_event_xfer_complete(dev_addr, ep_addr, total_len, xfer_result, true);
hcd_event_xfer_complete(dev_addr, ep_addr, xferred_len, xfer_result, true);
}
static void _handle_buff_status_bit(uint bit, struct hw_endpoint *ep)
@@ -141,6 +141,20 @@ static void hw_handle_buff_status(void)
{
remaining_buffers &= ~bit;
struct hw_endpoint *ep = &epx;
uint32_t ep_ctrl = *ep->endpoint_control;
if (ep_ctrl & EP_CTRL_DOUBLE_BUFFERED_BITS)
{
TU_LOG(2, "Double Buffered ");
}else
{
TU_LOG(2, "Single Buffered ");
}
if (ep_ctrl & EP_CTRL_INTERRUPT_PER_DOUBLE_BUFFER) TU_LOG(2, "Interrupt per double ");
if (ep_ctrl & EP_CTRL_INTERRUPT_PER_BUFFER) TU_LOG(2, "Interrupt per single ");
TU_LOG_HEX(2, ep_ctrl);
_handle_buff_status_bit(bit, ep);
}
@@ -277,11 +291,11 @@ static struct hw_endpoint *_hw_endpoint_allocate(uint8_t transfer_type)
assert(ep);
ep->buffer_control = &usbh_dpram->int_ep_buffer_ctrl[ep->interrupt_num].ctrl;
ep->endpoint_control = &usbh_dpram->int_ep_ctrl[ep->interrupt_num].ctrl;
// 0x180 for epx
// 0x1c0 for intep0
// 0x200 for intep1
// 0 for epx (double buffered): TODO increase to 1024 for ISO
// 2x64 for intep0
// 3x64 for intep1
// etc
ep->hw_data_buf = &usbh_dpram->epx_data[64 * (ep->interrupt_num + 1)];
ep->hw_data_buf = &usbh_dpram->epx_data[64 * (ep->interrupt_num + 2)];
}
else
{
@@ -311,7 +325,7 @@ static void _hw_endpoint_init(struct hw_endpoint *ep, uint8_t dev_addr, uint8_t
ep->rx = (dir == TUSB_DIR_IN);
// Response to a setup packet on EP0 starts with pid of 1
ep->next_pid = num == 0 ? 1u : 0u;
ep->next_pid = (num == 0 ? 1u : 0u);
ep->wMaxPacketSize = wMaxPacketSize;
ep->transfer_type = transfer_type;
@@ -340,6 +354,7 @@ static void _hw_endpoint_init(struct hw_endpoint *ep, uint8_t dev_addr, uint8_t
// preamble
uint32_t reg = dev_addr | (num << USB_ADDR_ENDP1_ENDPOINT_LSB);
// Assert the interrupt endpoint is IN_TO_HOST
// TODO Interrupt can also be OUT
assert(dir == TUSB_DIR_IN);
if (need_pre(dev_addr))
@@ -402,7 +417,6 @@ bool hcd_port_connect_status(uint8_t rhport)
tusb_speed_t hcd_port_speed_get(uint8_t rhport)
{
pico_trace("hcd_port_speed_get\n");
assert(rhport == 0);
// TODO: Should enumval this register
switch (dev_speed())
@@ -445,6 +459,10 @@ void hcd_int_disable(uint8_t rhport)
irq_set_enabled(USBCTRL_IRQ, false);
}
//--------------------------------------------------------------------+
// Endpoint API
//--------------------------------------------------------------------+
bool hcd_edpt_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_endpoint_t const * ep_desc)
{
(void) rhport;
@@ -467,6 +485,65 @@ 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;
@@ -486,13 +563,12 @@ bool hcd_edpt_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr, uint8_t *
_hw_endpoint_init(ep, dev_addr, ep_addr, ep->wMaxPacketSize, ep->transfer_type, 0);
}
// Start the transfer
_hw_endpoint_xfer_start(ep, buffer, buflen);
// If a normal transfer (non-interrupt) then initiate using
// sie ctrl registers. Otherwise interrupt ep registers should
// already be configured
if (ep == &epx) {
_hw_endpoint_xfer_start(ep, buffer, buflen);
// That has set up buffer control, endpoint control etc
// for host we have to initiate the transfer
usb_hw->dev_addr_ctrl = dev_addr | (ep_num << USB_ADDR_ENDP_ENDPOINT_LSB);
@@ -503,6 +579,9 @@ bool hcd_edpt_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr, uint8_t *
flags |= need_pre(dev_addr) ? USB_SIE_CTRL_PREAMBLE_EN_BITS : 0;
usb_hw->sie_ctrl = flags;
}else
{
_hw_endpoint_xfer_start(ep, buffer, buflen);
}
return true;
@@ -556,8 +635,8 @@ bool hcd_setup_send(uint8_t rhport, uint8_t dev_addr, uint8_t const setup_packet
bool hcd_edpt_clear_stall(uint8_t dev_addr, uint8_t ep_addr)
{
(void) rhport;
(void) dev_addr;
(void) ep_addr;
panic("hcd_clear_stall");
return true;