mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-22 18:09:03 +09:00
163 lines
4.2 KiB
C
163 lines
4.2 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Cadence USBSS DRD Driver.
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* Debug header file.
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*
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* Copyright (C) 2018-2019 Cadence.
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*
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* Author: Pawel Laszczak <pawell@cadence.com>
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*/
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#ifndef __LINUX_CDNS3_DEBUG
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#define __LINUX_CDNS3_DEBUG
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#include "core.h"
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#include "gadget.h"
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static inline char *cdns3_decode_usb_irq(char *str,
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enum usb_device_speed speed,
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u32 usb_ists)
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{
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int ret;
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ret = sprintf(str, "IRQ %08x = ", usb_ists);
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if (usb_ists & (USB_ISTS_CON2I | USB_ISTS_CONI)) {
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ret += sprintf(str + ret, "Connection %s\n",
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usb_speed_string(speed));
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}
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if (usb_ists & USB_ISTS_DIS2I || usb_ists & USB_ISTS_DISI)
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ret += sprintf(str + ret, "Disconnection ");
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if (usb_ists & USB_ISTS_L2ENTI)
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ret += sprintf(str + ret, "suspended ");
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if (usb_ists & USB_ISTS_L1ENTI)
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ret += sprintf(str + ret, "L1 enter ");
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if (usb_ists & USB_ISTS_L1EXTI)
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ret += sprintf(str + ret, "L1 exit ");
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if (usb_ists & USB_ISTS_L2ENTI)
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ret += sprintf(str + ret, "L2 enter ");
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if (usb_ists & USB_ISTS_L2EXTI)
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ret += sprintf(str + ret, "L2 exit ");
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if (usb_ists & USB_ISTS_U3EXTI)
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ret += sprintf(str + ret, "U3 exit ");
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if (usb_ists & USB_ISTS_UWRESI)
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ret += sprintf(str + ret, "Warm Reset ");
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if (usb_ists & USB_ISTS_UHRESI)
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ret += sprintf(str + ret, "Hot Reset ");
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if (usb_ists & USB_ISTS_U2RESI)
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ret += sprintf(str + ret, "Reset");
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return str;
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}
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static inline char *cdns3_decode_ep_irq(char *str,
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u32 ep_sts,
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const char *ep_name)
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{
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int ret;
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ret = sprintf(str, "IRQ for %s: %08x ", ep_name, ep_sts);
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if (ep_sts & EP_STS_SETUP)
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ret += sprintf(str + ret, "SETUP ");
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if (ep_sts & EP_STS_IOC)
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ret += sprintf(str + ret, "IOC ");
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if (ep_sts & EP_STS_ISP)
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ret += sprintf(str + ret, "ISP ");
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if (ep_sts & EP_STS_DESCMIS)
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ret += sprintf(str + ret, "DESCMIS ");
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if (ep_sts & EP_STS_STREAMR)
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ret += sprintf(str + ret, "STREAMR ");
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if (ep_sts & EP_STS_MD_EXIT)
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ret += sprintf(str + ret, "MD_EXIT ");
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if (ep_sts & EP_STS_TRBERR)
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ret += sprintf(str + ret, "TRBERR ");
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if (ep_sts & EP_STS_NRDY)
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ret += sprintf(str + ret, "NRDY ");
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if (ep_sts & EP_STS_PRIME)
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ret += sprintf(str + ret, "PRIME ");
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if (ep_sts & EP_STS_SIDERR)
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ret += sprintf(str + ret, "SIDERRT ");
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if (ep_sts & EP_STS_OUTSMM)
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ret += sprintf(str + ret, "OUTSMM ");
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if (ep_sts & EP_STS_ISOERR)
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ret += sprintf(str + ret, "ISOERR ");
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if (ep_sts & EP_STS_IOT)
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ret += sprintf(str + ret, "IOT ");
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return str;
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}
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static inline char *cdns3_decode_epx_irq(char *str,
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char *ep_name,
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u32 ep_sts)
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{
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return cdns3_decode_ep_irq(str, ep_sts, ep_name);
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}
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static inline char *cdns3_decode_ep0_irq(char *str,
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int dir,
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u32 ep_sts)
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{
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return cdns3_decode_ep_irq(str, ep_sts,
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dir ? "ep0IN" : "ep0OUT");
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}
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/**
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* Debug a transfer ring.
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*
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* Prints out all TRBs in the endpoint ring, even those after the Link TRB.
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*.
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*/
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static inline char *cdns3_dbg_ring(struct cdns3_endpoint *priv_ep,
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struct cdns3_trb *ring, char *str)
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{
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dma_addr_t addr = priv_ep->trb_pool_dma;
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struct cdns3_trb *trb;
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int trb_per_sector;
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int ret = 0;
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int i;
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trb_per_sector = GET_TRBS_PER_SEGMENT(priv_ep->type);
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trb = &priv_ep->trb_pool[priv_ep->dequeue];
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ret += sprintf(str + ret, "\n\t\tRing contents for %s:", priv_ep->name);
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ret += sprintf(str + ret,
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"\n\t\tRing deq index: %d, trb: %p (virt), 0x%llx (dma)\n",
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priv_ep->dequeue, trb,
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(unsigned long long)cdns3_trb_virt_to_dma(priv_ep, trb));
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trb = &priv_ep->trb_pool[priv_ep->enqueue];
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ret += sprintf(str + ret,
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"\t\tRing enq index: %d, trb: %p (virt), 0x%llx (dma)\n",
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priv_ep->enqueue, trb,
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(unsigned long long)cdns3_trb_virt_to_dma(priv_ep, trb));
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ret += sprintf(str + ret,
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"\t\tfree trbs: %d, CCS=%d, PCS=%d\n",
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priv_ep->free_trbs, priv_ep->ccs, priv_ep->pcs);
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if (trb_per_sector > TRBS_PER_SEGMENT)
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trb_per_sector = TRBS_PER_SEGMENT;
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if (trb_per_sector > TRBS_PER_SEGMENT) {
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sprintf(str + ret, "\t\tTo big transfer ring %d\n",
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trb_per_sector);
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return str;
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}
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for (i = 0; i < trb_per_sector; ++i) {
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trb = &ring[i];
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ret += sprintf(str + ret,
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"\t\t@%pad %08x %08x %08x\n", &addr,
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le32_to_cpu(trb->buffer),
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le32_to_cpu(trb->length),
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le32_to_cpu(trb->control));
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addr += sizeof(*trb);
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}
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return str;
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}
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#endif /*__LINUX_CDNS3_DEBUG*/
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