GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
commit b1928b41c0
21813 changed files with 4413081 additions and 0 deletions
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+/*
+ * Copyright (c) LOTUS. All rights reserved.
+ */
+#include "usb3_hw.h"
+#include "usb3_drv.h"
+#include <cpu_func.h>
+
+void ena_eventbuf_intr(usb3_device_t *dev)
+{
+	unsigned int eventsiz;
+
+	eventsiz = usb3_rd32(&dev->core_global_regs->geventbuf[0].geventsiz);
+	eventsiz &= ~USB3_EVENTSIZ_INT_MSK_BIT;
+	usb3_wr32(&dev->core_global_regs->geventbuf[0].geventsiz, eventsiz);
+}
+
+void dis_eventbuf_intr(usb3_device_t *dev)
+{
+	unsigned int eventsiz;
+
+	eventsiz = usb3_rd32(&dev->core_global_regs->geventbuf[0].geventsiz);
+	eventsiz |= USB3_EVENTSIZ_INT_MSK_BIT;
+	usb3_wr32(&dev->core_global_regs->geventbuf[0].geventsiz, eventsiz);
+}
+
+void usb3_dis_flush_eventbuf_intr(usb3_device_t *dev)
+{
+	unsigned int cnt;
+	unsigned int gevntsize;
+
+	dis_eventbuf_intr(dev);
+	cnt = usb3_rd32(&dev->core_global_regs->geventbuf[0].geventcnt);
+	usb3_wr32(&dev->core_global_regs->geventbuf[0].geventcnt, cnt);
+
+	if (cnt != 0) {
+		gevntsize = sizeof(dev->event_buf[0]) * USB3_EVENT_BUF_SIZE;
+		usb_info("evnt count 0x%x, evnt buf size 0x%x\n", cnt, gevntsize);
+		dev->event_ptr += cnt % gevntsize;
+	}
+}
+
+int get_eventbuf_count(usb3_device_t *dev)
+{
+	unsigned int cnt;
+
+	cnt = usb3_rd32(&dev->core_global_regs->geventbuf[0].geventcnt);
+
+	return cnt & USB3_EVENTCNT_CNT_BITS;
+}
+
+void update_eventbuf_count(usb3_device_t *dev, int cnt)
+{
+	usb3_wr32(&dev->core_global_regs->geventbuf[0].geventcnt, cnt);
+}
+
+unsigned int get_eventbuf_event(usb3_device_t *dev, int size)
+{
+	unsigned int event;
+
+	event = *dev->event_ptr++;
+
+	if (dev->event_ptr >= dev->event_buf + size)
+		dev->event_ptr = dev->event_buf;
+	return event;
+}
+
+void usb3_init_eventbuf(usb3_device_t *dev, unsigned int size, phys_addr_t dma_addr)
+{
+	dma_addr = map_to_dma_addr(dma_addr);
+
+	usb3_wr32(&dev->core_global_regs->geventbuf[0].geventadr_lo, dma_addr & 0xffffffff);
+
+	usb3_wr32(&dev->core_global_regs->geventbuf[0].geventadr_hi, 0);
+	usb3_wr32(&dev->core_global_regs->geventbuf[0].geventsiz, size << 2); /* left shift 2bit */
+
+	usb3_wr32(&dev->core_global_regs->geventbuf[0].geventcnt, 0);
+}
+
+void usb3_enable_device_interrupts(usb3_device_t *dev)
+{
+	unsigned int eventsiz;
+
+	/* Clear any pending interrupts */
+	usb3_dis_flush_eventbuf_intr(dev);
+	/* *
+	 * This routine enables the Event Buffer interrupt.
+	 */
+	eventsiz = usb3_rd32(&dev->core_global_regs->geventbuf[0].geventsiz);
+	eventsiz &= ~USB3_EVENTSIZ_INT_MSK_BIT;
+	usb3_wr32(&dev->core_global_regs->geventbuf[0].geventsiz, eventsiz);
+	/* Enable device interrupts */
+	usb3_wr32(&dev->pcd.dev_global_regs->devten, USB3_DEVTEN_DISCONN_BIT | USB3_DEVTEN_CONNDONE_BIT |
+		USB3_DEVTEN_USBRESET_BIT | USB3_DEVTEN_HIBER_REQ_EVT_BIT | USB3_DEVTEN_WKUP_BIT | USB3_DEVTEN_EOPF_BIT);
+}
+
+void usb3_handle_event(usb3_device_t *dev)
+{
+	usb3_pcd_t *pcd = &dev->pcd;
+	unsigned int event, physep;
+	int intr, count, i;
+	intr = 0;
+
+	invalidate_dcache_all();
+	count = get_eventbuf_count(dev);
+	if ((count & USB3_EVENTCNT_CNT_BITS) == USB3_EVENTCNT_CNT_BITS || count >= USB3_EVENT_BUF_SIZE * 0x4) {
+		update_eventbuf_count(dev, count);
+		count = 0;
+	}
+
+	for (i = 0; i < count; i += 0x4) {
+		event = get_eventbuf_event(dev, USB3_EVENT_BUF_SIZE);
+		update_eventbuf_count(dev, 0x4);
+		if (event == 0) {
+			/* Ignore null events */
+			continue;
+		}
+
+		if (event & USB3_EVENT_NON_EP_BIT) {
+			intr = event & USB3_EVENT_INTTYPE_BITS;
+
+			if (intr == (USB3_EVENT_DEV_INT << USB3_EVENT_INTTYPE_SHIFT)) {
+				usb3_handle_dev_intr(pcd, event);
+			} else {
+				/* @todo Handle non-Device interrupts
+				 * (OTG, CarKit, I2C)
+				 */
+			}
+		} else {
+			physep = (event >> USB3_DEPEVT_EPNUM_SHIFT) & (USB3_DEPEVT_EPNUM_BITS >> USB3_DEPEVT_EPNUM_SHIFT);
+			usb3_handle_ep_intr(pcd, physep, event);
+		}
+	}
+}