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CherryUSB/port/ehci/usb_hc_ehci.c

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/*
* Copyright (c) 2022, sakumisu
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "usb_hc_ehci.h"
#ifdef CONFIG_USB_EHCI_WITH_OHCI
#include "usb_hc_ohci.h"
#endif
#define EHCI_TUNE_CERR 3 /* 0-3 qtd retries; 0 == don't stop */
#define EHCI_TUNE_RL_HS 4 /* nak throttle; see 4.9 */
#define EHCI_TUNE_RL_TT 0
#define EHCI_TUNE_MULT_HS 1 /* 1-3 transactions/uframe; 4.10.3 */
#define EHCI_TUNE_MULT_TT 1
struct ehci_hcd g_ehci_hcd[CONFIG_USBHOST_MAX_BUS];
USB_NOCACHE_RAM_SECTION struct ehci_qh_hw ehci_qh_pool[CONFIG_USBHOST_MAX_BUS][CONFIG_USB_EHCI_QH_NUM];
/* The head of the asynchronous queue */
USB_NOCACHE_RAM_SECTION struct ehci_qh_hw g_async_qh_head[CONFIG_USBHOST_MAX_BUS];
/* The head of the periodic queue */
USB_NOCACHE_RAM_SECTION struct ehci_qh_hw g_periodic_qh_head[CONFIG_USBHOST_MAX_BUS];
/* The frame list */
USB_NOCACHE_RAM_SECTION uint32_t g_framelist[CONFIG_USBHOST_MAX_BUS][USB_ALIGN_UP(CONFIG_USB_EHCI_FRAME_LIST_SIZE, 1024)] __attribute__((aligned(4096)));
static struct ehci_qh_hw *ehci_qh_alloc(struct usbh_bus *bus)
{
struct ehci_qh_hw *qh;
struct ehci_qtd_hw *qtd;
size_t flags;
flags = usb_osal_enter_critical_section();
for (uint32_t i = 0; i < CONFIG_USB_EHCI_QH_NUM; i++) {
if (!g_ehci_hcd[bus->hcd.hcd_id].ehci_qh_used[i]) {
g_ehci_hcd[bus->hcd.hcd_id].ehci_qh_used[i] = true;
usb_osal_leave_critical_section(flags);
qh = &ehci_qh_pool[bus->hcd.hcd_id][i];
memset(&qh->hw, 0, sizeof(struct ehci_qh));
qh->hw.hlp = QTD_LIST_END;
qh->hw.overlay.next_qtd = QTD_LIST_END;
qh->hw.overlay.alt_next_qtd = QTD_LIST_END;
qh->urb = NULL;
for (uint32_t j = 0; j < CONFIG_USB_EHCI_QTD_NUM; j++) {
qtd = &qh->qtd_pool[j];
qtd->hw.next_qtd = QTD_LIST_END;
qtd->hw.alt_next_qtd = QTD_LIST_END;
qtd->hw.token = QTD_TOKEN_STATUS_HALTED;
qtd->urb = NULL;
}
return qh;
}
}
usb_osal_leave_critical_section(flags);
return NULL;
}
static void ehci_qh_free(struct usbh_bus *bus, struct ehci_qh_hw *qh)
{
size_t flags;
for (uint32_t i = 0; i < CONFIG_USB_EHCI_QH_NUM; i++) {
if (&ehci_qh_pool[bus->hcd.hcd_id][i] == qh) {
flags = usb_osal_enter_critical_section();
g_ehci_hcd[bus->hcd.hcd_id].ehci_qh_used[i] = false;
usb_osal_leave_critical_section(flags);
qh->urb = NULL;
return;
}
}
}
static inline void ehci_qh_add_head(struct ehci_qh_hw *head, struct ehci_qh_hw *n)
{
n->hw.hlp = head->hw.hlp;
head->hw.hlp = QH_HLP_QH(n);
}
static inline void ehci_qh_remove(struct ehci_qh_hw *head, struct ehci_qh_hw *n)
{
struct ehci_qh_hw *tmp = head;
while (EHCI_ADDR2QH(tmp->hw.hlp) && EHCI_ADDR2QH(tmp->hw.hlp) != n) {
tmp = EHCI_ADDR2QH(tmp->hw.hlp);
}
if (tmp) {
tmp->hw.hlp = n->hw.hlp;
}
}
static int ehci_caculate_smask(int binterval)
{
int order, interval;
interval = 1;
while (binterval > 1) {
interval *= 2;
binterval--;
}
if (interval < 2) /* interval 1 */
return 0xFF;
if (interval < 4) /* interval 2 */
return 0x55;
if (interval < 8) /* interval 4 */
return 0x22;
for (order = 0; (interval > 1); order++) {
interval >>= 1;
}
return (0x1 << (order % 8));
}
static void ehci_qh_fill(struct ehci_qh_hw *qh,
uint8_t dev_addr,
uint8_t ep_addr,
uint8_t ep_type,
uint16_t ep_mps,
uint8_t ep_mult,
uint8_t ep_interval,
uint8_t speed,
uint8_t hubaddr,
uint8_t hubport)
{
uint32_t epchar = 0;
uint32_t epcap = 0;
/* QH endpoint characteristics:
*
* FIELD DESCRIPTION
* -------- -------------------------------
* DEVADDR Device address
* I Inactivate on Next Transaction
* ENDPT Endpoint number
* EPS Endpoint speed
* DTC Data toggle control
* MAXPKT Max packet size
* C Control endpoint
* RL NAK count reloaded
*/
/* QH endpoint capabilities
*
* FIELD DESCRIPTION
* -------- -------------------------------
* SSMASK Interrupt Schedule Mask
* SCMASK Split Completion Mask
* HUBADDR Hub Address
* PORT Port number
* MULT High band width multiplier
*/
epchar |= ((ep_addr & 0xf) << QH_EPCHAR_ENDPT_SHIFT);
epchar |= (dev_addr << QH_EPCHAR_DEVADDR_SHIFT);
epchar |= (ep_mps << QH_EPCHAR_MAXPKT_SHIFT);
if (ep_type == USB_ENDPOINT_TYPE_CONTROL) {
epchar |= QH_EPCHAR_DTC; /* toggle from qtd */
}
switch (speed) {
case USB_SPEED_LOW:
epchar |= QH_EPCHAR_EPS_LOW;
__attribute__((fallthrough));
case USB_SPEED_FULL:
if (ep_type == USB_ENDPOINT_TYPE_CONTROL) {
epchar |= QH_EPCHAR_C; /* for TT */
}
if (ep_type != USB_ENDPOINT_TYPE_INTERRUPT) {
epchar |= (EHCI_TUNE_RL_TT << QH_EPCHAR_RL_SHIFT);
}
epcap |= QH_EPCAPS_MULT(EHCI_TUNE_MULT_TT);
epcap |= QH_EPCAPS_HUBADDR(hubaddr);
epcap |= QH_EPCAPS_PORT(hubport);
if (ep_type == USB_ENDPOINT_TYPE_INTERRUPT) {
epcap |= QH_EPCAPS_SSMASK(2);
epcap |= QH_EPCAPS_SCMASK(0x78);
}
break;
case USB_SPEED_HIGH:
epchar |= QH_EPCHAR_EPS_HIGH;
if (ep_type == USB_ENDPOINT_TYPE_CONTROL) {
epchar |= (EHCI_TUNE_RL_HS << QH_EPCHAR_RL_SHIFT);
epcap |= QH_EPCAPS_MULT(EHCI_TUNE_MULT_HS);
} else if (ep_type == USB_ENDPOINT_TYPE_BULK) {
epcap |= QH_EPCAPS_MULT(EHCI_TUNE_MULT_HS);
} else {
/* only for interrupt ep */
epcap |= QH_EPCAPS_MULT(ep_mult);
epcap |= ehci_caculate_smask(ep_interval);
}
break;
default:
break;
}
qh->hw.epchar = epchar;
qh->hw.epcap = epcap;
}
static void ehci_qtd_bpl_fill(struct ehci_qtd_hw *qtd, uint32_t bufaddr, size_t buflen)
{
uint32_t rest;
qtd->hw.bpl[0] = bufaddr;
rest = 0x1000 - (bufaddr & 0xfff);
if (buflen < rest) {
rest = buflen;
} else {
bufaddr += 0x1000;
bufaddr &= ~0x0fff;
for (int i = 1; rest < buflen && i < 5; i++) {
qtd->hw.bpl[i] = bufaddr;
bufaddr += 0x1000;
if ((rest + 0x1000) < buflen) {
rest += 0x1000;
} else {
rest = buflen;
}
}
}
}
static void ehci_qtd_fill(struct ehci_qtd_hw *qtd, uint32_t bufaddr, size_t buflen, uint32_t token)
{
/* qTD token
*
* FIELD DESCRIPTION
* -------- -------------------------------
* STATUS Status
* PID PID Code
* CERR Error Counter
* CPAGE Current Page
* IOC Interrupt on complete
* NBYTES Total Bytes to Transfer
* TOGGLE Data Toggle
*/
qtd->hw.token = token;
ehci_qtd_bpl_fill(qtd, bufaddr, buflen);
qtd->length = buflen;
}
static struct ehci_qh_hw *ehci_control_urb_init(struct usbh_bus *bus, struct usbh_urb *urb, struct usb_setup_packet *setup, uint8_t *buffer, uint32_t buflen)
{
struct ehci_qh_hw *qh = NULL;
struct ehci_qtd_hw *qtd_setup = NULL;
struct ehci_qtd_hw *qtd_data = NULL;
struct ehci_qtd_hw *qtd_status = NULL;
uint32_t token;
size_t flags;
qh = ehci_qh_alloc(bus);
if (qh == NULL) {
return NULL;
}
qtd_setup = &qh->qtd_pool[0];
qtd_data = &qh->qtd_pool[1];
qtd_status = &qh->qtd_pool[2];
ehci_qh_fill(qh,
urb->hport->dev_addr,
urb->ep->bEndpointAddress,
USB_GET_ENDPOINT_TYPE(urb->ep->bmAttributes),
USB_GET_MAXPACKETSIZE(urb->ep->wMaxPacketSize),
0,
0,
urb->hport->speed,
urb->hport->parent->hub_addr,
urb->hport->port);
/* fill setup qtd */
token = QTD_TOKEN_STATUS_ACTIVE |
QTD_TOKEN_PID_SETUP |
((uint32_t)EHCI_TUNE_CERR << QTD_TOKEN_CERR_SHIFT) |
((uint32_t)8 << QTD_TOKEN_NBYTES_SHIFT);
ehci_qtd_fill(qtd_setup, (uintptr_t)setup, 8, token);
qtd_setup->urb = urb;
/* fill data qtd */
if (setup->wLength > 0) {
if ((setup->bmRequestType & 0x80) == 0x80) {
token = QTD_TOKEN_PID_IN;
} else {
token = QTD_TOKEN_PID_OUT;
}
token |= QTD_TOKEN_STATUS_ACTIVE |
QTD_TOKEN_PID_OUT |
QTD_TOKEN_TOGGLE |
((uint32_t)EHCI_TUNE_CERR << QTD_TOKEN_CERR_SHIFT) |
((uint32_t)buflen << QTD_TOKEN_NBYTES_SHIFT);
ehci_qtd_fill(qtd_data, (uintptr_t)buffer, buflen, token);
qtd_data->urb = urb;
qtd_setup->hw.next_qtd = EHCI_PTR2ADDR(qtd_data);
qtd_data->hw.next_qtd = EHCI_PTR2ADDR(qtd_status);
} else {
qtd_setup->hw.next_qtd = EHCI_PTR2ADDR(qtd_status);
}
/* fill status qtd */
if ((setup->bmRequestType & 0x80) == 0x80) {
token = QTD_TOKEN_PID_OUT;
} else {
token = QTD_TOKEN_PID_IN;
}
token |= QTD_TOKEN_STATUS_ACTIVE |
QTD_TOKEN_TOGGLE |
QTD_TOKEN_IOC |
((uint32_t)EHCI_TUNE_CERR << QTD_TOKEN_CERR_SHIFT) |
((uint32_t)0 << QTD_TOKEN_NBYTES_SHIFT);
ehci_qtd_fill(qtd_status, 0, 0, token);
qtd_status->urb = urb;
qtd_status->hw.next_qtd = QTD_LIST_END;
/* update qh first qtd */
qh->hw.curr_qtd = EHCI_PTR2ADDR(qtd_setup);
qh->hw.overlay.next_qtd = EHCI_PTR2ADDR(qtd_setup);
/* record qh first qtd */
qh->first_qtd = EHCI_PTR2ADDR(qtd_setup);
flags = usb_osal_enter_critical_section();
qh->urb = urb;
urb->hcpriv = qh;
/* add qh into async list */
ehci_qh_add_head(&g_async_qh_head[bus->hcd.hcd_id], qh);
EHCI_HCOR->usbcmd |= EHCI_USBCMD_ASEN;
usb_osal_leave_critical_section(flags);
return qh;
}
static struct ehci_qh_hw *ehci_bulk_urb_init(struct usbh_bus *bus, struct usbh_urb *urb, uint8_t *buffer, uint32_t buflen)
{
struct ehci_qh_hw *qh = NULL;
struct ehci_qtd_hw *qtd = NULL;
struct ehci_qtd_hw *first_qtd = NULL;
struct ehci_qtd_hw *prev_qtd = NULL;
uint32_t qtd_num = 0;
uint32_t xfer_len = 0;
uint32_t token;
size_t flags;
qh = ehci_qh_alloc(bus);
if (qh == NULL) {
return NULL;
}
ehci_qh_fill(qh,
urb->hport->dev_addr,
urb->ep->bEndpointAddress,
USB_GET_ENDPOINT_TYPE(urb->ep->bmAttributes),
USB_GET_MAXPACKETSIZE(urb->ep->wMaxPacketSize),
0,
0,
urb->hport->speed,
urb->hport->parent->hub_addr,
urb->hport->port);
while (1) {
qtd = &qh->qtd_pool[qtd_num];
if (buflen > 0x4000) {
xfer_len = 0x4000;
buflen -= 0x4000;
} else {
xfer_len = buflen;
buflen = 0;
}
if (urb->ep->bEndpointAddress & 0x80) {
token = QTD_TOKEN_PID_IN;
} else {
token = QTD_TOKEN_PID_OUT;
}
token |= QTD_TOKEN_STATUS_ACTIVE |
((uint32_t)EHCI_TUNE_CERR << QTD_TOKEN_CERR_SHIFT) |
((uint32_t)xfer_len << QTD_TOKEN_NBYTES_SHIFT);
if (buflen == 0) {
token |= QTD_TOKEN_IOC;
}
ehci_qtd_fill(qtd, (uintptr_t)buffer, xfer_len, token);
qtd->urb = urb;
qtd->hw.next_qtd = QTD_LIST_END;
buffer += xfer_len;
if (prev_qtd) {
prev_qtd->hw.next_qtd = EHCI_PTR2ADDR(qtd);
} else {
first_qtd = qtd;
}
prev_qtd = qtd;
if (buflen == 0) {
break;
}
qtd_num++;
if (qtd_num == CONFIG_USB_EHCI_QTD_NUM) {
return NULL;
}
}
/* update qh first qtd */
qh->hw.curr_qtd = EHCI_PTR2ADDR(first_qtd);
qh->hw.overlay.next_qtd = EHCI_PTR2ADDR(first_qtd);
/* update data toggle */
if (urb->data_toggle) {
qh->hw.overlay.token = QTD_TOKEN_TOGGLE;
} else {
qh->hw.overlay.token = 0;
}
/* record qh first qtd */
qh->first_qtd = EHCI_PTR2ADDR(first_qtd);
flags = usb_osal_enter_critical_section();
qh->urb = urb;
urb->hcpriv = qh;
/* add qh into async list */
ehci_qh_add_head(&g_async_qh_head[bus->hcd.hcd_id], qh);
EHCI_HCOR->usbcmd |= EHCI_USBCMD_ASEN;
usb_osal_leave_critical_section(flags);
return qh;
}
static struct ehci_qh_hw *ehci_intr_urb_init(struct usbh_bus *bus, struct usbh_urb *urb, uint8_t *buffer, uint32_t buflen)
{
struct ehci_qh_hw *qh = NULL;
struct ehci_qtd_hw *qtd = NULL;
struct ehci_qtd_hw *first_qtd = NULL;
struct ehci_qtd_hw *prev_qtd = NULL;
uint32_t qtd_num = 0;
uint32_t xfer_len = 0;
uint32_t token;
size_t flags;
qh = ehci_qh_alloc(bus);
if (qh == NULL) {
return NULL;
}
ehci_qh_fill(qh,
urb->hport->dev_addr,
urb->ep->bEndpointAddress,
USB_GET_ENDPOINT_TYPE(urb->ep->bmAttributes),
USB_GET_MAXPACKETSIZE(urb->ep->wMaxPacketSize),
USB_GET_MULT(urb->ep->wMaxPacketSize) + 1,
urb->ep->bInterval,
urb->hport->speed,
urb->hport->parent->hub_addr,
urb->hport->port);
while (1) {
qtd = &qh->qtd_pool[qtd_num];
if (buflen > 0x4000) {
xfer_len = 0x4000;
buflen -= 0x4000;
} else {
xfer_len = buflen;
buflen = 0;
}
if (urb->ep->bEndpointAddress & 0x80) {
token = QTD_TOKEN_PID_IN;
} else {
token = QTD_TOKEN_PID_OUT;
}
token |= QTD_TOKEN_STATUS_ACTIVE |
((uint32_t)EHCI_TUNE_CERR << QTD_TOKEN_CERR_SHIFT) |
((uint32_t)xfer_len << QTD_TOKEN_NBYTES_SHIFT);
if (buflen == 0) {
token |= QTD_TOKEN_IOC;
}
ehci_qtd_fill(qtd, (uintptr_t)buffer, xfer_len, token);
qtd->urb = urb;
qtd->hw.next_qtd = QTD_LIST_END;
buffer += xfer_len;
if (prev_qtd) {
prev_qtd->hw.next_qtd = EHCI_PTR2ADDR(qtd);
} else {
first_qtd = qtd;
}
prev_qtd = qtd;
if (buflen == 0) {
break;
}
qtd_num++;
if (qtd_num == CONFIG_USB_EHCI_QTD_NUM) {
return NULL;
}
}
/* update qh first qtd */
qh->hw.curr_qtd = EHCI_PTR2ADDR(first_qtd);
qh->hw.overlay.next_qtd = EHCI_PTR2ADDR(first_qtd);
/* update data toggle */
if (urb->data_toggle) {
qh->hw.overlay.token = QTD_TOKEN_TOGGLE;
} else {
qh->hw.overlay.token = 0;
}
/* record qh first qtd */
qh->first_qtd = EHCI_PTR2ADDR(first_qtd);
flags = usb_osal_enter_critical_section();
qh->urb = urb;
urb->hcpriv = qh;
/* add qh into periodic list */
ehci_qh_add_head(&g_periodic_qh_head[bus->hcd.hcd_id], qh);
EHCI_HCOR->usbcmd |= EHCI_USBCMD_PSEN;
usb_osal_leave_critical_section(flags);
return qh;
}
static void ehci_urb_waitup(struct usbh_bus *bus, struct usbh_urb *urb)
{
struct ehci_qh_hw *qh;
qh = (struct ehci_qh_hw *)urb->hcpriv;
qh->urb = NULL;
urb->hcpriv = NULL;
qh->remove_in_iaad = 0;
if (urb->timeout) {
usb_osal_sem_give(qh->waitsem);
} else {
ehci_qh_free(bus, qh);
}
if (urb->complete) {
if (urb->errorcode < 0) {
urb->complete(urb->arg, urb->errorcode);
} else {
urb->complete(urb->arg, urb->actual_length);
}
}
}
static void ehci_qh_scan_qtds(struct usbh_bus *bus, struct ehci_qh_hw *qhead, struct ehci_qh_hw *qh)
{
struct ehci_qtd_hw *qtd;
(void)bus;
ehci_qh_remove(qhead, qh);
qtd = EHCI_ADDR2QTD(qh->first_qtd);
while (qtd) {
qtd->urb->actual_length += (qtd->length - ((qtd->hw.token & QTD_TOKEN_NBYTES_MASK) >> QTD_TOKEN_NBYTES_SHIFT));
qh->first_qtd = qtd->hw.next_qtd;
qtd = EHCI_ADDR2QTD(qh->first_qtd);
}
}
static void ehci_check_qh(struct usbh_bus *bus, struct ehci_qh_hw *qhead, struct ehci_qh_hw *qh)
{
struct usbh_urb *urb;
struct ehci_qtd_hw *qtd;
uint32_t token;
qtd = EHCI_ADDR2QTD(qh->first_qtd);
if (qtd == NULL) {
return;
}
while (qtd) {
token = qtd->hw.token;
if (token & QTD_TOKEN_STATUS_ERRORS) {
break;
} else if (token & QTD_TOKEN_STATUS_ACTIVE) {
return;
}
qtd = EHCI_ADDR2QTD(qtd->hw.next_qtd);
}
urb = qh->urb;
if ((token & QTD_TOKEN_STATUS_ERRORS) == 0) {
if (token & QTD_TOKEN_TOGGLE) {
urb->data_toggle = true;
} else {
urb->data_toggle = false;
}
urb->errorcode = 0;
} else {
if (token & QTD_TOKEN_STATUS_BABBLE) {
urb->errorcode = -USB_ERR_BABBLE;
urb->data_toggle = 0;
} else if (token & QTD_TOKEN_STATUS_HALTED) {
urb->errorcode = -USB_ERR_STALL;
urb->data_toggle = 0;
} else if (token & (QTD_TOKEN_STATUS_DBERR | QTD_TOKEN_STATUS_XACTERR)) {
urb->errorcode = -USB_ERR_IO;
}
}
ehci_qh_scan_qtds(bus, qhead, qh);
if (USB_GET_ENDPOINT_TYPE(urb->ep->bmAttributes) == USB_ENDPOINT_TYPE_INTERRUPT) {
ehci_urb_waitup(bus, urb);
} else {
qh->remove_in_iaad = 1;
EHCI_HCOR->usbcmd |= EHCI_USBCMD_IAAD;
}
}
static void ehci_kill_qh(struct usbh_bus *bus, struct ehci_qh_hw *qhead, struct ehci_qh_hw *qh)
{
struct ehci_qtd_hw *qtd;
(void)bus;
ehci_qh_remove(qhead, qh);
qtd = EHCI_ADDR2QTD(qh->first_qtd);
while (qtd) {
qh->first_qtd = qtd->hw.next_qtd;
qtd = EHCI_ADDR2QTD(qh->first_qtd);
}
}
static int usbh_reset_port(struct usbh_bus *bus, const uint8_t port)
{
volatile uint32_t timeout = 0;
uint32_t regval;
#if defined(CONFIG_USB_EHCI_HPMICRO) && CONFIG_USB_EHCI_HPMICRO
if ((*(volatile uint32_t *)(bus->hcd.reg_base + 0x224) & 0xc0) == (2 << 6)) { /* Hardcode for hpm */
EHCI_HCOR->portsc[port - 1] |= (1 << 29);
} else {
EHCI_HCOR->portsc[port - 1] &= ~(1 << 29);
}
#endif
regval = EHCI_HCOR->portsc[port - 1];
regval &= ~EHCI_PORTSC_PE;
regval |= EHCI_PORTSC_RESET;
EHCI_HCOR->portsc[port - 1] = regval;
usb_osal_msleep(55);
EHCI_HCOR->portsc[port - 1] &= ~EHCI_PORTSC_RESET;
while ((EHCI_HCOR->portsc[port - 1] & EHCI_PORTSC_RESET) != 0) {
usb_osal_msleep(1);
timeout++;
if (timeout > 100) {
return -USB_ERR_TIMEOUT;
}
}
return 0;
}
__WEAK void usb_hc_low_level_init(struct usbh_bus *bus)
{
(void)bus;
}
__WEAK void usb_hc_low_level2_init(struct usbh_bus *bus)
{
(void)bus;
}
__WEAK void usb_hc_low_level_deinit(struct usbh_bus *bus)
{
(void)bus;
}
int usb_hc_init(struct usbh_bus *bus)
{
struct ehci_qh_hw *qh;
volatile uint32_t timeout = 0;
uint32_t regval;
memset(&g_ehci_hcd[bus->hcd.hcd_id], 0, sizeof(struct ehci_hcd));
memset(ehci_qh_pool[bus->hcd.hcd_id], 0, sizeof(struct ehci_qh_hw) * CONFIG_USB_EHCI_QH_NUM);
for (uint8_t index = 0; index < CONFIG_USB_EHCI_QH_NUM; index++) {
qh = &ehci_qh_pool[bus->hcd.hcd_id][index];
if ((uint32_t)&qh->hw % 32) {
USB_LOG_ERR("struct ehci_qh_hw is not align 32\r\n");
return -USB_ERR_INVAL;
}
for (uint8_t i = 0; i < CONFIG_USB_EHCI_QTD_NUM; i++) {
if ((uint32_t)&qh->qtd_pool[i] % 32) {
USB_LOG_ERR("struct ehci_qtd_hw is not align 32\r\n");
return -USB_ERR_INVAL;
}
}
}
for (uint8_t index = 0; index < CONFIG_USB_EHCI_QH_NUM; index++) {
qh = &ehci_qh_pool[bus->hcd.hcd_id][index];
qh->waitsem = usb_osal_sem_create(0);
}
memset(&g_async_qh_head[bus->hcd.hcd_id], 0, sizeof(struct ehci_qh_hw));
g_async_qh_head[bus->hcd.hcd_id].hw.hlp = QH_HLP_QH(&g_async_qh_head[bus->hcd.hcd_id]);
g_async_qh_head[bus->hcd.hcd_id].hw.epchar = QH_EPCHAR_H;
g_async_qh_head[bus->hcd.hcd_id].hw.overlay.next_qtd = QTD_LIST_END;
g_async_qh_head[bus->hcd.hcd_id].hw.overlay.alt_next_qtd = QTD_LIST_END;
g_async_qh_head[bus->hcd.hcd_id].hw.overlay.token = QTD_TOKEN_STATUS_HALTED;
g_async_qh_head[bus->hcd.hcd_id].first_qtd = QTD_LIST_END;
memset(g_framelist[bus->hcd.hcd_id], 0, sizeof(uint32_t) * CONFIG_USB_EHCI_FRAME_LIST_SIZE);
memset(&g_periodic_qh_head[bus->hcd.hcd_id], 0, sizeof(struct ehci_qh_hw));
g_periodic_qh_head[bus->hcd.hcd_id].hw.hlp = QH_HLP_END;
g_periodic_qh_head[bus->hcd.hcd_id].hw.epchar = QH_EPCAPS_SSMASK(1);
g_periodic_qh_head[bus->hcd.hcd_id].hw.overlay.next_qtd = QTD_LIST_END;
g_periodic_qh_head[bus->hcd.hcd_id].hw.overlay.alt_next_qtd = QTD_LIST_END;
g_periodic_qh_head[bus->hcd.hcd_id].hw.overlay.token = QTD_TOKEN_STATUS_HALTED;
g_periodic_qh_head[bus->hcd.hcd_id].first_qtd = QTD_LIST_END;
for (uint32_t i = 0; i < CONFIG_USB_EHCI_FRAME_LIST_SIZE; i++) {
g_framelist[bus->hcd.hcd_id][i] = QH_HLP_QH(&g_periodic_qh_head[bus->hcd.hcd_id]);
}
usb_hc_low_level_init(bus);
USB_LOG_INFO("EHCI HCIVERSION:0x%04x\r\n", (unsigned int)EHCI_HCCR->hciversion);
USB_LOG_INFO("EHCI HCSPARAMS:0x%06x\r\n", (unsigned int)EHCI_HCCR->hcsparams);
USB_LOG_INFO("EHCI HCCPARAMS:0x%04x\r\n", (unsigned int)EHCI_HCCR->hccparams);
g_ehci_hcd[bus->hcd.hcd_id].ppc = (EHCI_HCCR->hcsparams & EHCI_HCSPARAMS_PPC) ? true : false;
g_ehci_hcd[bus->hcd.hcd_id].n_ports = (EHCI_HCCR->hcsparams & EHCI_HCSPARAMS_NPORTS_MASK) >> EHCI_HCSPARAMS_NPORTS_SHIFT;
g_ehci_hcd[bus->hcd.hcd_id].n_cc = (EHCI_HCCR->hcsparams & EHCI_HCSPARAMS_NCC_MASK) >> EHCI_HCSPARAMS_NCC_SHIFT;
g_ehci_hcd[bus->hcd.hcd_id].n_pcc = (EHCI_HCCR->hcsparams & EHCI_HCSPARAMS_NPCC_MASK) >> EHCI_HCSPARAMS_NPCC_SHIFT;
g_ehci_hcd[bus->hcd.hcd_id].has_tt = g_ehci_hcd[bus->hcd.hcd_id].n_cc ? false : true;
g_ehci_hcd[bus->hcd.hcd_id].hcor_offset = EHCI_HCCR->caplength;
USB_LOG_INFO("EHCI ppc:%u, n_ports:%u, n_cc:%u, n_pcc:%u\r\n",
g_ehci_hcd[bus->hcd.hcd_id].ppc,
g_ehci_hcd[bus->hcd.hcd_id].n_ports,
g_ehci_hcd[bus->hcd.hcd_id].n_cc,
g_ehci_hcd[bus->hcd.hcd_id].n_pcc);
EHCI_HCOR->usbcmd &= ~EHCI_USBCMD_RUN;
usb_osal_msleep(2);
EHCI_HCOR->usbcmd |= EHCI_USBCMD_HCRESET;
while (EHCI_HCOR->usbcmd & EHCI_USBCMD_HCRESET) {
usb_osal_msleep(1);
timeout++;
if (timeout > 100) {
return -USB_ERR_TIMEOUT;
}
}
usb_hc_low_level2_init(bus);
EHCI_HCOR->usbintr = 0;
EHCI_HCOR->usbsts = EHCI_HCOR->usbsts;
/* Set the Current Asynchronous List Address. */
EHCI_HCOR->asynclistaddr = EHCI_PTR2ADDR(&g_async_qh_head[bus->hcd.hcd_id]);
/* Set the Periodic Frame List Base Address. */
EHCI_HCOR->periodiclistbase = EHCI_PTR2ADDR(g_framelist[bus->hcd.hcd_id]);
regval = 0;
#if CONFIG_USB_EHCI_FRAME_LIST_SIZE == 1024
regval |= EHCI_USBCMD_FLSIZE_1024;
#elif CONFIG_USB_EHCI_FRAME_LIST_SIZE == 512
regval |= EHCI_USBCMD_FLSIZE_512;
#elif CONFIG_USB_EHCI_FRAME_LIST_SIZE == 256
regval |= EHCI_USBCMD_FLSIZE_256;
#else
#error Unsupported frame size list size
#endif
regval |= EHCI_USBCMD_ITHRE_1MF;
regval |= EHCI_USBCMD_ASEN;
regval |= EHCI_USBCMD_PSEN;
regval |= EHCI_USBCMD_RUN;
EHCI_HCOR->usbcmd = regval;
#ifdef CONFIG_USB_EHCI_CONFIGFLAG
EHCI_HCOR->configflag = EHCI_CONFIGFLAG;
#endif
/* Wait for the EHCI to run (no longer report halted) */
timeout = 0;
while (EHCI_HCOR->usbsts & EHCI_USBSTS_HALTED) {
usb_osal_msleep(1);
timeout++;
if (timeout > 100) {
return -USB_ERR_TIMEOUT;
}
}
if (g_ehci_hcd[bus->hcd.hcd_id].ppc) {
for (uint8_t port = 0; port < g_ehci_hcd[bus->hcd.hcd_id].n_ports; port++) {
regval = EHCI_HCOR->portsc[port];
regval |= EHCI_PORTSC_PP;
regval &= ~(EHCI_PORTSC_CSC | EHCI_PORTSC_PEC | EHCI_PORTSC_OCC);
EHCI_HCOR->portsc[port] = regval;
}
}
if (g_ehci_hcd[bus->hcd.hcd_id].has_tt) {
#ifdef CONFIG_USB_EHCI_WITH_OHCI
USB_LOG_INFO("EHCI uses tt for ls/fs device, so cannot enable this macro\r\n");
return -USB_ERR_INVAL;
#endif
}
if (g_ehci_hcd[bus->hcd.hcd_id].has_tt) {
USB_LOG_INFO("EHCI uses tt for ls/fs device\r\n");
} else {
#ifdef CONFIG_USB_EHCI_WITH_OHCI
USB_LOG_INFO("EHCI uses companion controller for ls/fs device\r\n");
ohci_init(bus);
#else
USB_LOG_WRN("Do not enable companion controller, you should use a hub to support ls/fs device\r\n");
#endif
}
/* Enable EHCI interrupts. */
EHCI_HCOR->usbintr = EHCI_USBIE_INT | EHCI_USBIE_ERR | EHCI_USBIE_PCD | EHCI_USBIE_FATAL | EHCI_USBIE_IAA;
return 0;
}
int usb_hc_deinit(struct usbh_bus *bus)
{
struct ehci_qh_hw *qh;
volatile uint32_t timeout = 0;
uint32_t regval;
EHCI_HCOR->usbintr = 0;
regval = EHCI_HCOR->usbcmd;
regval &= ~EHCI_USBCMD_ASEN;
regval &= ~EHCI_USBCMD_PSEN;
regval &= ~EHCI_USBCMD_RUN;
EHCI_HCOR->usbcmd = regval;
while ((EHCI_HCOR->usbsts & (EHCI_USBSTS_PSS | EHCI_USBSTS_ASS)) || ((EHCI_HCOR->usbsts & EHCI_USBSTS_HALTED) == 0)) {
usb_osal_msleep(1);
timeout++;
if (timeout > 100) {
return -USB_ERR_TIMEOUT;
}
}
if (g_ehci_hcd[bus->hcd.hcd_id].ppc) {
for (uint8_t port = 0; port < g_ehci_hcd[bus->hcd.hcd_id].n_ports; port++) {
regval = EHCI_HCOR->portsc[port];
regval &= ~EHCI_PORTSC_PP;
EHCI_HCOR->portsc[port] = regval;
}
}
#ifdef CONFIG_USB_EHCI_CONFIGFLAG
EHCI_HCOR->configflag = 0;
#endif
EHCI_HCOR->usbsts = EHCI_HCOR->usbsts;
EHCI_HCOR->usbcmd |= EHCI_USBCMD_HCRESET;
for (uint8_t index = 0; index < CONFIG_USB_EHCI_QH_NUM; index++) {
qh = &ehci_qh_pool[bus->hcd.hcd_id][index];
usb_osal_sem_delete(qh->waitsem);
}
#ifdef CONFIG_USB_EHCI_WITH_OHCI
ohci_deinit(bus);
#endif
usb_hc_low_level_deinit(bus);
return 0;
}
uint16_t usbh_get_frame_number(struct usbh_bus *bus)
{
#ifdef CONFIG_USB_EHCI_WITH_OHCI
if (EHCI_HCOR->portsc[0] & EHCI_PORTSC_OWNER) {
return ohci_get_frame_number(bus);
}
#endif
return (((EHCI_HCOR->frindex & EHCI_FRINDEX_MASK) >> 3) & 0x3ff);
}
int usbh_roothub_control(struct usbh_bus *bus, struct usb_setup_packet *setup, uint8_t *buf)
{
uint8_t nports;
uint8_t port;
uint32_t temp, status;
nports = g_ehci_hcd[bus->hcd.hcd_id].n_ports;
port = setup->wIndex;
temp = EHCI_HCOR->portsc[port - 1];
#ifdef CONFIG_USB_EHCI_WITH_OHCI
if (temp & EHCI_PORTSC_OWNER) {
return ohci_roothub_control(bus, setup, buf);
}
if ((temp & EHCI_PORTSC_LSTATUS_MASK) == EHCI_PORTSC_LSTATUS_KSTATE) {
EHCI_HCOR->portsc[port - 1] |= EHCI_PORTSC_OWNER;
while (!(EHCI_HCOR->portsc[port - 1] & EHCI_PORTSC_OWNER)) {
}
return ohci_roothub_control(bus, setup, buf);
}
#endif
if (setup->bmRequestType & USB_REQUEST_RECIPIENT_DEVICE) {
switch (setup->bRequest) {
case HUB_REQUEST_CLEAR_FEATURE:
switch (setup->wValue) {
case HUB_FEATURE_HUB_C_LOCALPOWER:
break;
case HUB_FEATURE_HUB_C_OVERCURRENT:
break;
default:
return -USB_ERR_NOTSUPP;
}
break;
case HUB_REQUEST_SET_FEATURE:
switch (setup->wValue) {
case HUB_FEATURE_HUB_C_LOCALPOWER:
break;
case HUB_FEATURE_HUB_C_OVERCURRENT:
break;
default:
return -USB_ERR_NOTSUPP;
}
break;
case HUB_REQUEST_GET_DESCRIPTOR:
break;
case HUB_REQUEST_GET_STATUS:
memset(buf, 0, 4);
break;
default:
break;
}
} else if (setup->bmRequestType & USB_REQUEST_RECIPIENT_OTHER) {
switch (setup->bRequest) {
case HUB_REQUEST_CLEAR_FEATURE:
if (!port || port > nports) {
return -USB_ERR_INVAL;
}
switch (setup->wValue) {
case HUB_PORT_FEATURE_ENABLE:
EHCI_HCOR->portsc[port - 1] &= ~EHCI_PORTSC_PE;
break;
case HUB_PORT_FEATURE_SUSPEND:
EHCI_HCOR->portsc[port - 1] |= EHCI_PORTSC_RESUME;
usb_osal_msleep(20);
EHCI_HCOR->portsc[port - 1] &= ~EHCI_PORTSC_RESUME;
while (EHCI_HCOR->portsc[port - 1] & EHCI_PORTSC_RESUME) {
}
temp = EHCI_HCOR->usbcmd;
temp |= EHCI_USBCMD_ASEN;
temp |= EHCI_USBCMD_PSEN;
temp |= EHCI_USBCMD_RUN;
EHCI_HCOR->usbcmd = temp;
while ((EHCI_HCOR->usbcmd & EHCI_USBCMD_RUN) == 0) {
}
case HUB_PORT_FEATURE_C_SUSPEND:
break;
case HUB_PORT_FEATURE_POWER:
EHCI_HCOR->portsc[port - 1] &= ~EHCI_PORTSC_PP;
break;
case HUB_PORT_FEATURE_C_CONNECTION:
EHCI_HCOR->portsc[port - 1] |= EHCI_PORTSC_CSC;
break;
case HUB_PORT_FEATURE_C_ENABLE:
EHCI_HCOR->portsc[port - 1] |= EHCI_PORTSC_PEC;
break;
case HUB_PORT_FEATURE_C_OVER_CURREN:
EHCI_HCOR->portsc[port - 1] |= EHCI_PORTSC_OCC;
break;
case HUB_PORT_FEATURE_C_RESET:
break;
default:
return -USB_ERR_NOTSUPP;
}
break;
case HUB_REQUEST_SET_FEATURE:
if (!port || port > nports) {
return -USB_ERR_INVAL;
}
switch (setup->wValue) {
case HUB_PORT_FEATURE_SUSPEND:
temp = EHCI_HCOR->usbcmd;
temp &= ~EHCI_USBCMD_ASEN;
temp &= ~EHCI_USBCMD_PSEN;
temp &= ~EHCI_USBCMD_RUN;
EHCI_HCOR->usbcmd = temp;
while (EHCI_HCOR->usbcmd & EHCI_USBCMD_RUN) {
}
EHCI_HCOR->portsc[port - 1] |= EHCI_PORTSC_SUSPEND;
while ((EHCI_HCOR->portsc[port - 1] & EHCI_PORTSC_SUSPEND) == 0) {
}
break;
case HUB_PORT_FEATURE_POWER:
EHCI_HCOR->portsc[port - 1] |= EHCI_PORTSC_PP;
break;
case HUB_PORT_FEATURE_RESET:
usbh_reset_port(bus, port);
#ifdef CONFIG_USB_EHCI_WITH_OHCI
if (!(EHCI_HCOR->portsc[port - 1] & EHCI_PORTSC_PE)) {
EHCI_HCOR->portsc[port - 1] |= EHCI_PORTSC_OWNER;
while (!(EHCI_HCOR->portsc[port - 1] & EHCI_PORTSC_OWNER)) {
}
return ohci_roothub_control(bus, setup, buf);
}
#endif
break;
default:
return -USB_ERR_NOTSUPP;
}
break;
case HUB_REQUEST_GET_STATUS:
if (!port || port > nports) {
return -USB_ERR_INVAL;
}
temp = EHCI_HCOR->portsc[port - 1];
status = 0;
if (temp & EHCI_PORTSC_CSC) {
status |= (1 << HUB_PORT_FEATURE_C_CONNECTION);
}
if (temp & EHCI_PORTSC_PEC) {
status |= (1 << HUB_PORT_FEATURE_C_ENABLE);
}
if (temp & EHCI_PORTSC_OCC) {
status |= (1 << HUB_PORT_FEATURE_C_OVER_CURREN);
}
if (temp & EHCI_PORTSC_CCS) {
status |= (1 << HUB_PORT_FEATURE_CONNECTION);
}
if (temp & EHCI_PORTSC_PE) {
status |= (1 << HUB_PORT_FEATURE_ENABLE);
if (usbh_get_port_speed(bus, port) == USB_SPEED_LOW) {
status |= (1 << HUB_PORT_FEATURE_LOWSPEED);
} else if (usbh_get_port_speed(bus, port) == USB_SPEED_HIGH) {
status |= (1 << HUB_PORT_FEATURE_HIGHSPEED);
}
}
if (temp & EHCI_PORTSC_SUSPEND) {
status |= (1 << HUB_PORT_FEATURE_SUSPEND);
}
if (temp & EHCI_PORTSC_OCA) {
status |= (1 << HUB_PORT_FEATURE_OVERCURRENT);
}
if (temp & EHCI_PORTSC_RESET) {
status |= (1 << HUB_PORT_FEATURE_RESET);
}
if (temp & EHCI_PORTSC_PP || !(EHCI_HCCR->hcsparams & EHCI_HCSPARAMS_PPC) ) {
status |= (1 << HUB_PORT_FEATURE_POWER );
}
memcpy(buf, &status, 4);
break;
default:
break;
}
}
return 0;
}
int usbh_submit_urb(struct usbh_urb *urb)
{
struct ehci_qh_hw *qh = NULL;
size_t flags;
int ret = 0;
struct usbh_hub *hub;
struct usbh_hubport *hport;
struct usbh_bus *bus;
if (!urb || !urb->hport || !urb->ep || !urb->hport->bus) {
return -USB_ERR_INVAL;
}
bus = urb->hport->bus;
/* find active hubport in roothub */
hport = urb->hport;
hub = urb->hport->parent;
while (!hub->is_roothub) {
hport = hub->parent;
hub = hub->parent->parent;
}
#ifdef CONFIG_USB_EHCI_WITH_OHCI
if (EHCI_HCOR->portsc[hport->port - 1] & EHCI_PORTSC_OWNER) {
return ohci_submit_urb(urb);
}
#endif
if (!urb->hport->connected || !(EHCI_HCOR->portsc[hport->port - 1] & EHCI_PORTSC_CCS)) {
return -USB_ERR_NOTCONN;
}
if (urb->errorcode == -USB_ERR_BUSY) {
return -USB_ERR_BUSY;
}
flags = usb_osal_enter_critical_section();
urb->hcpriv = NULL;
urb->errorcode = -USB_ERR_BUSY;
urb->actual_length = 0;
usb_osal_leave_critical_section(flags);
switch (USB_GET_ENDPOINT_TYPE(urb->ep->bmAttributes)) {
case USB_ENDPOINT_TYPE_CONTROL:
qh = ehci_control_urb_init(bus, urb, urb->setup, urb->transfer_buffer, urb->transfer_buffer_length);
if (qh == NULL) {
return -USB_ERR_NOMEM;
}
break;
case USB_ENDPOINT_TYPE_BULK:
qh = ehci_bulk_urb_init(bus, urb, urb->transfer_buffer, urb->transfer_buffer_length);
if (qh == NULL) {
return -USB_ERR_NOMEM;
}
break;
case USB_ENDPOINT_TYPE_INTERRUPT:
qh = ehci_intr_urb_init(bus, urb, urb->transfer_buffer, urb->transfer_buffer_length);
if (qh == NULL) {
return -USB_ERR_NOMEM;
}
break;
case USB_ENDPOINT_TYPE_ISOCHRONOUS:
#ifdef CONFIG_USB_EHCI_ISO
ret = ehci_iso_urb_init(bus, urb);
#endif
break;
default:
break;
}
if (urb->timeout > 0) {
/* wait until timeout or sem give */
ret = usb_osal_sem_take(qh->waitsem, urb->timeout);
if (ret < 0) {
goto errout_timeout;
}
urb->timeout = 0;
ret = urb->errorcode;
/* we can free qh when waitsem is done */
ehci_qh_free(bus, qh);
}
return ret;
errout_timeout:
urb->timeout = 0;
usbh_kill_urb(urb);
return ret;
}
int usbh_kill_urb(struct usbh_urb *urb)
{
struct ehci_qh_hw *qh;
struct usbh_bus *bus;
size_t flags;
bool remove_in_iaad = false;
if (!urb || !urb->hport || !urb->hcpriv || !urb->hport->bus) {
return -USB_ERR_INVAL;
}
bus = urb->hport->bus;
#ifdef CONFIG_USB_EHCI_WITH_OHCI
if (EHCI_HCOR->portsc[urb->hport->port - 1] & EHCI_PORTSC_OWNER) {
return ohci_kill_urb(urb);
}
#endif
flags = usb_osal_enter_critical_section();
EHCI_HCOR->usbcmd &= ~(EHCI_USBCMD_PSEN | EHCI_USBCMD_ASEN);
if ((USB_GET_ENDPOINT_TYPE(urb->ep->bmAttributes) == USB_ENDPOINT_TYPE_CONTROL) || (USB_GET_ENDPOINT_TYPE(urb->ep->bmAttributes) == USB_ENDPOINT_TYPE_BULK)) {
qh = EHCI_ADDR2QH(g_async_qh_head[bus->hcd.hcd_id].hw.hlp);
while ((qh != &g_async_qh_head[bus->hcd.hcd_id]) && qh) {
if (qh->urb == urb) {
remove_in_iaad = true;
ehci_kill_qh(bus, &g_async_qh_head[bus->hcd.hcd_id], qh);
}
qh = EHCI_ADDR2QH(qh->hw.hlp);
}
} else if (USB_GET_ENDPOINT_TYPE(urb->ep->bmAttributes) == USB_ENDPOINT_TYPE_INTERRUPT) {
qh = EHCI_ADDR2QH(g_periodic_qh_head[bus->hcd.hcd_id].hw.hlp);
while (qh) {
if (qh->urb == urb) {
ehci_kill_qh(bus, &g_periodic_qh_head[bus->hcd.hcd_id], qh);
}
qh = EHCI_ADDR2QH(qh->hw.hlp);
}
} else {
#ifdef CONFIG_USB_EHCI_ISO
ehci_kill_iso_urb(bus, urb);
EHCI_HCOR->usbcmd |= (EHCI_USBCMD_PSEN | EHCI_USBCMD_ASEN);
usb_osal_leave_critical_section(flags);
return 0;
#endif
}
EHCI_HCOR->usbcmd |= (EHCI_USBCMD_PSEN | EHCI_USBCMD_ASEN);
qh = (struct ehci_qh_hw *)urb->hcpriv;
urb->hcpriv = NULL;
urb->errorcode = -USB_ERR_SHUTDOWN;
qh->urb = NULL;
if (urb->timeout) {
usb_osal_sem_give(qh->waitsem);
} else {
ehci_qh_free(bus, qh);
}
if (remove_in_iaad) {
volatile uint32_t timeout = 0;
EHCI_HCOR->usbcmd |= EHCI_USBCMD_IAAD;
while (!(EHCI_HCOR->usbsts & EHCI_USBSTS_IAA)) {
usb_osal_msleep(1);
timeout++;
if (timeout > 100) {
usb_osal_leave_critical_section(flags);
return -USB_ERR_TIMEOUT;
}
}
EHCI_HCOR->usbsts = EHCI_USBSTS_IAA;
}
usb_osal_leave_critical_section(flags);
return 0;
}
static void ehci_scan_async_list(struct usbh_bus *bus)
{
struct ehci_qh_hw *qh;
qh = EHCI_ADDR2QH(g_async_qh_head[bus->hcd.hcd_id].hw.hlp);
while ((qh != &g_async_qh_head[bus->hcd.hcd_id]) && qh) {
if (qh->urb) {
ehci_check_qh(bus, &g_async_qh_head[bus->hcd.hcd_id], qh);
}
qh = EHCI_ADDR2QH(qh->hw.hlp);
}
}
static void ehci_scan_periodic_list(struct usbh_bus *bus)
{
struct ehci_qh_hw *qh;
qh = EHCI_ADDR2QH(g_periodic_qh_head[bus->hcd.hcd_id].hw.hlp);
while (qh) {
if (qh->urb) {
ehci_check_qh(bus, &g_periodic_qh_head[bus->hcd.hcd_id], qh);
}
qh = EHCI_ADDR2QH(qh->hw.hlp);
}
}
void USBH_IRQHandler(uint8_t busid)
{
uint32_t usbsts;
struct usbh_bus *bus;
bus = &g_usbhost_bus[busid];
usbsts = EHCI_HCOR->usbsts & EHCI_HCOR->usbintr;
EHCI_HCOR->usbsts = usbsts;
if (usbsts & EHCI_USBSTS_INT) {
ehci_scan_async_list(bus);
ehci_scan_periodic_list(bus);
#ifdef CONFIG_USB_EHCI_ISO
ehci_scan_isochronous_list(bus);
#endif
}
if (usbsts & EHCI_USBSTS_ERR) {
ehci_scan_async_list(bus);
ehci_scan_periodic_list(bus);
#ifdef CONFIG_USB_EHCI_ISO
ehci_scan_isochronous_list(bus);
#endif
}
if (usbsts & EHCI_USBSTS_PCD) {
for (int port = 0; port < g_ehci_hcd[bus->hcd.hcd_id].n_ports; port++) {
uint32_t portsc = EHCI_HCOR->portsc[port];
if (portsc & EHCI_PORTSC_CSC) {
if ((portsc & EHCI_PORTSC_CCS) == EHCI_PORTSC_CCS) {
} else {
for (uint8_t index = 0; index < CONFIG_USB_EHCI_QH_NUM; index++) {
g_ehci_hcd[bus->hcd.hcd_id].ehci_qh_used[index] = false;
}
for (uint8_t index = 0; index < CONFIG_USB_EHCI_ISO_NUM; index++) {
g_ehci_hcd[bus->hcd.hcd_id].ehci_iso_used[index] = false;
}
}
bus->hcd.roothub.int_buffer[0] |= (1 << (port + 1));
usbh_hub_thread_wakeup(&bus->hcd.roothub);
}
}
}
if (usbsts & EHCI_USBSTS_IAA) {
for (uint8_t index = 0; index < CONFIG_USB_EHCI_QH_NUM; index++) {
struct ehci_qh_hw *qh = &ehci_qh_pool[bus->hcd.hcd_id][index];
if (g_ehci_hcd[bus->hcd.hcd_id].ehci_qh_used[index] && qh->remove_in_iaad) {
ehci_urb_waitup(bus, qh->urb);
}
}
}
if (usbsts & EHCI_USBSTS_FATAL) {
}
}
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