mirror/tinyusb
1
0
Fork 0
mirror of https://github.com/hathach/tinyusb.git synced 2025-02-22 06:40:58 +00:00
Code Issues Packages Projects Releases Wiki Activity

got interrupt in working with slave

Browse Source
This commit is contained in:
hathach 2024-11-02 20:20:27 +07:00
parent a0f75e5b67
commit 5d6d905cb0
No known key found for this signature in database
GPG Key ID: 26FAB84F615C3C52
1 changed files with 46 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
src/portable/synopsys/dwc2/hcd_dwc2.c
View File

@ -80,8 +80,9 @@ typedef struct {
volatile bool allocated;
uint8_t ep_id;
union TU_ATTR_PACKED {
uint8_t err_count : 7;
uint8_t err_count : 6;
uint8_t do_ping : 1;
uint8_t sof_schedule : 1;
};
uint8_t result;
@ -681,6 +682,31 @@ bool hcd_edpt_clear_stall(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr) {
//--------------------------------------------------------------------
// HCD Event Handler
//--------------------------------------------------------------------
static void channel_xfer_in_retry(dwc2_regs_t* dwc2, uint8_t ch_id, uint32_t hcint) {
hcd_xfer_t* xfer = &_hcd_data.xfer[ch_id];
dwc2_channel_t* channel = &dwc2->channel[ch_id];
hcd_endpoint_t* edpt = &_hcd_data.edpt[xfer->ep_id];
if (edpt_is_periodic(channel->hcchar_bm.ep_type)){
// for periodic, de-allocate channel, enable SOF set frame counter for later transfer
edpt->next_pid = channel->hctsiz_bm.pid; // save PID
edpt->frame_countdown = edpt->frame_interval;
dwc2->gintmsk |= GINTSTS_SOF;
if (hcint & HCINT_HALTED) {
// already halted, de-allocate channel (called from DMA isr)
channel_dealloc(dwc2, ch_id);
} else {
// disable channel first if not halted (called slave isr)
xfer->sof_schedule = 1;
channel_disable(dwc2, channel);
}
} else {
// for control/bulk: try again immediately
channel_send_in_token(dwc2, channel);
}
}
#if CFG_TUH_DWC2_SLAVE_ENABLE
static void handle_rxflvl_irq(uint8_t rhport) {
dwc2_regs_t* dwc2 = DWC2_REG(rhport);
@ -770,6 +796,8 @@ static bool handle_channel_in_slave(dwc2_regs_t* dwc2, uint8_t ch_id, uint32_t h
dwc2_channel_t* channel = &dwc2->channel[ch_id];
bool is_done = false;
// TU_LOG1("ch%u: ep = %u, hcint = 0x%04lX\r\n", ch_id, channel->hcchar_bm.ep_num, hcint);
if (hcint & HCINT_XFER_COMPLETE) {
xfer->result = XFER_RESULT_SUCCESS;
channel_disable(dwc2, channel);
@ -786,21 +814,23 @@ static bool handle_channel_in_slave(dwc2_regs_t* dwc2, uint8_t ch_id, uint32_t h
channel_disable(dwc2, channel);
} else if (hcint & HCINT_HALTED) {
channel->hcintmsk &= ~HCINT_HALTED;
if (xfer->result != XFER_RESULT_INVALID) {
if (xfer->sof_schedule) {
// de-allocate channel but does not complete xfer, we schedule it in the SOF interrupt
channel_dealloc(dwc2, ch_id);
} else if (xfer->result != XFER_RESULT_INVALID) {
is_done = true;
} else if (channel->hcchar_bm.err_multi_count == HCD_XFER_ERROR_MAX) {
xfer->result = XFER_RESULT_FAILED;
is_done = true;
} else {
// Re-initialize Channel
TU_ASSERT(false);
channel_xfer_in_retry(dwc2, ch_id, hcint);
}
} else if (hcint & HCINT_DATATOGGLE_ERR) {
xfer->err_count = 0;
TU_ASSERT(false);
} else if (hcint & HCINT_NAK) {
// NAK received, re-enable channel if request queue is available
channel_send_in_token(dwc2, channel);
channel_xfer_in_retry(dwc2, ch_id, hcint);
} else if (hcint & HCINT_ACK) {
xfer->err_count = 0;
channel->hcintmsk &= ~HCINT_ACK;
@ -887,31 +917,13 @@ static bool handle_channel_in_dma(dwc2_regs_t* dwc2, uint8_t ch_id, uint32_t hci
xfer->result = XFER_RESULT_FAILED;
} else {
channel->hcintmsk |= HCINT_ACK | HCINT_NAK | HCINT_DATATOGGLE_ERR;
edpt->next_pid = channel->hctsiz_bm.pid; // save PID
if (edpt_is_periodic(channel->hcchar_bm.ep_type)){
// for periodic, de-allocate channel, enable SOF set frame counter for later transfer
channel_dealloc(dwc2, ch_id);
edpt->frame_countdown = edpt->frame_interval;
dwc2->gintmsk |= GINTSTS_SOF;
} else {
// for control/bulk: try again immediately
TU_ASSERT(false);
}
channel_xfer_in_retry(dwc2, ch_id, hcint);
}
} else if (hcint & (HCINT_ACK | HCINT_NAK | HCINT_DATATOGGLE_ERR)) {
xfer->err_count = 0;
channel->hcintmsk &= ~(HCINT_ACK | HCINT_NAK | HCINT_DATATOGGLE_ERR);
if ((hcint & (HCINT_NAK | HCINT_DATATOGGLE_ERR))) {
edpt->next_pid = channel->hctsiz_bm.pid; // save PID
if (edpt_is_periodic(channel->hcchar_bm.ep_type)){
// for periodic, de-allocate channel, enable SOF set frame counter for later transfer
channel_dealloc(dwc2, ch_id);
edpt->frame_countdown = edpt->frame_interval;
dwc2->gintmsk |= GINTSTS_SOF;
} else {
// for control/bulk: try again immediately
TU_ASSERT(false);
}
channel_xfer_in_retry(dwc2, ch_id, hcint);
}
}
}
@ -1161,6 +1173,15 @@ void hcd_int_handler(uint8_t rhport, bool in_isr) {
dwc2->gintmsk &= ~GINTSTS_NPTX_FIFO_EMPTY;
}
}
if (gintsts & GINTSTS_PTX_FIFO_EMPTY) {
// PTX FIFO empty interrupt, this is read-only and cleared by hardware when FIFO is written
const bool more_ptxfe = handle_txfifo_empty(dwc2, true);
if (!more_ptxfe) {
// no more pending packet, disable interrupt
dwc2->gintmsk &= ~GINTSTS_PTX_FIFO_EMPTY;
}
}
#endif
}