1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Cadence USBSS DRD Driver.
* Debug header file.
*
* Copyright (C) 2018-2019 Cadence.
*
* Author: Pawel Laszczak <pawell@cadence.com>
*/
#ifndef __LINUX_CDNS3_DEBUG
#define __LINUX_CDNS3_DEBUG
#include "core.h"
static inline char *cdns3_decode_usb_irq(char *str,
enum usb_device_speed speed,
u32 usb_ists)
{
int ret;
ret = sprintf(str, "IRQ %08x = ", usb_ists);
if (usb_ists & (USB_ISTS_CON2I | USB_ISTS_CONI)) {
ret += sprintf(str + ret, "Connection %s\n",
usb_speed_string(speed));
}
if (usb_ists & USB_ISTS_DIS2I || usb_ists & USB_ISTS_DISI)
ret += sprintf(str + ret, "Disconnection ");
if (usb_ists & USB_ISTS_L2ENTI)
ret += sprintf(str + ret, "suspended ");
if (usb_ists & USB_ISTS_L1ENTI)
ret += sprintf(str + ret, "L1 enter ");
if (usb_ists & USB_ISTS_L1EXTI)
ret += sprintf(str + ret, "L1 exit ");
if (usb_ists & USB_ISTS_L2ENTI)
ret += sprintf(str + ret, "L2 enter ");
if (usb_ists & USB_ISTS_L2EXTI)
ret += sprintf(str + ret, "L2 exit ");
if (usb_ists & USB_ISTS_U3EXTI)
ret += sprintf(str + ret, "U3 exit ");
if (usb_ists & USB_ISTS_UWRESI)
ret += sprintf(str + ret, "Warm Reset ");
if (usb_ists & USB_ISTS_UHRESI)
ret += sprintf(str + ret, "Hot Reset ");
if (usb_ists & USB_ISTS_U2RESI)
ret += sprintf(str + ret, "Reset");
return str;
}
static inline char *cdns3_decode_ep_irq(char *str,
u32 ep_sts,
const char *ep_name)
{
int ret;
ret = sprintf(str, "IRQ for %s: %08x ", ep_name, ep_sts);
if (ep_sts & EP_STS_SETUP)
ret += sprintf(str + ret, "SETUP ");
if (ep_sts & EP_STS_IOC)
ret += sprintf(str + ret, "IOC ");
if (ep_sts & EP_STS_ISP)
ret += sprintf(str + ret, "ISP ");
if (ep_sts & EP_STS_DESCMIS)
ret += sprintf(str + ret, "DESCMIS ");
if (ep_sts & EP_STS_STREAMR)
ret += sprintf(str + ret, "STREAMR ");
if (ep_sts & EP_STS_MD_EXIT)
ret += sprintf(str + ret, "MD_EXIT ");
if (ep_sts & EP_STS_TRBERR)
ret += sprintf(str + ret, "TRBERR ");
if (ep_sts & EP_STS_NRDY)
ret += sprintf(str + ret, "NRDY ");
if (ep_sts & EP_STS_PRIME)
ret += sprintf(str + ret, "PRIME ");
if (ep_sts & EP_STS_SIDERR)
ret += sprintf(str + ret, "SIDERRT ");
if (ep_sts & EP_STS_OUTSMM)
ret += sprintf(str + ret, "OUTSMM ");
if (ep_sts & EP_STS_ISOERR)
ret += sprintf(str + ret, "ISOERR ");
if (ep_sts & EP_STS_IOT)
ret += sprintf(str + ret, "IOT ");
return str;
}
static inline char *cdns3_decode_epx_irq(char *str,
char *ep_name,
u32 ep_sts)
{
return cdns3_decode_ep_irq(str, ep_sts, ep_name);
}
static inline char *cdns3_decode_ep0_irq(char *str,
int dir,
u32 ep_sts)
{
return cdns3_decode_ep_irq(str, ep_sts,
dir ? "ep0IN" : "ep0OUT");
}
/**
* Debug a transfer ring.
*
* Prints out all TRBs in the endpoint ring, even those after the Link TRB.
*.
*/
static inline char *cdns3_dbg_ring(struct cdns3_endpoint *priv_ep, char *str)
{
dma_addr_t addr = priv_ep->trb_pool_dma;
struct cdns3_trb *trb;
int trb_per_sector;
int ret = 0;
int i;
trb_per_sector = GET_TRBS_PER_SEGMENT(priv_ep->type);
trb = &priv_ep->trb_pool[priv_ep->dequeue];
ret += sprintf(str + ret, "\n\t\tRing contents for %s:", priv_ep->name);
ret += sprintf(str + ret,
"\n\t\tRing deq index: %d, trb: %p (virt), 0x%llx (dma)\n",
priv_ep->dequeue, trb,
(unsigned long long)cdns3_trb_virt_to_dma(priv_ep, trb));
trb = &priv_ep->trb_pool[priv_ep->enqueue];
ret += sprintf(str + ret,
"\t\tRing enq index: %d, trb: %p (virt), 0x%llx (dma)\n",
priv_ep->enqueue, trb,
(unsigned long long)cdns3_trb_virt_to_dma(priv_ep, trb));
ret += sprintf(str + ret,
"\t\tfree trbs: %d, CCS=%d, PCS=%d\n",
priv_ep->free_trbs, priv_ep->ccs, priv_ep->pcs);
if (trb_per_sector > TRBS_PER_SEGMENT) {
sprintf(str + ret, "\t\tTransfer ring %d too big\n",
trb_per_sector);
return str;
}
for (i = 0; i < trb_per_sector; ++i) {
trb = &priv_ep->trb_pool[i];
ret += sprintf(str + ret,
"\t\t@%pad %08x %08x %08x\n", &addr,
le32_to_cpu(trb->buffer),
le32_to_cpu(trb->length),
le32_to_cpu(trb->control));
addr += sizeof(*trb);
}
return str;
}
#endif /*__LINUX_CDNS3_DEBUG*/
|
