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18#include <linux/slab.h>
19#include <linux/kernel.h>
20#include <linux/debugfs.h>
21#include <linux/seq_file.h>
22
23#include "../../wusbcore/wusbhc.h"
24
25#include "whcd.h"
26
27struct whc_dbg {
28 struct dentry *di_f;
29 struct dentry *asl_f;
30 struct dentry *pzl_f;
31};
32
33static void qset_print(struct seq_file *s, struct whc_qset *qset)
34{
35 static const char *qh_type[] = {
36 "ctrl", "isoc", "bulk", "intr", "rsvd", "rsvd", "rsvd", "lpintr", };
37 struct whc_std *std;
38 struct urb *urb = NULL;
39 int i;
40
41 seq_printf(s, "qset %08x", (u32)qset->qset_dma);
42 if (&qset->list_node == qset->whc->async_list.prev) {
43 seq_printf(s, " (dummy)\n");
44 } else {
45 seq_printf(s, " ep%d%s-%s maxpkt: %d\n",
46 qset->qh.info1 & 0x0f,
47 (qset->qh.info1 >> 4) & 0x1 ? "in" : "out",
48 qh_type[(qset->qh.info1 >> 5) & 0x7],
49 (qset->qh.info1 >> 16) & 0xffff);
50 }
51 seq_printf(s, " -> %08x\n", (u32)qset->qh.link);
52 seq_printf(s, " info: %08x %08x %08x\n",
53 qset->qh.info1, qset->qh.info2, qset->qh.info3);
54 seq_printf(s, " sts: %04x errs: %d curwin: %08x\n",
55 qset->qh.status, qset->qh.err_count, qset->qh.cur_window);
56 seq_printf(s, " TD: sts: %08x opts: %08x\n",
57 qset->qh.overlay.qtd.status, qset->qh.overlay.qtd.options);
58
59 for (i = 0; i < WHCI_QSET_TD_MAX; i++) {
60 seq_printf(s, " %c%c TD[%d]: sts: %08x opts: %08x ptr: %08x\n",
61 i == qset->td_start ? 'S' : ' ',
62 i == qset->td_end ? 'E' : ' ',
63 i, qset->qtd[i].status, qset->qtd[i].options,
64 (u32)qset->qtd[i].page_list_ptr);
65 }
66 seq_printf(s, " ntds: %d\n", qset->ntds);
67 list_for_each_entry(std, &qset->stds, list_node) {
68 if (urb != std->urb) {
69 urb = std->urb;
70 seq_printf(s, " urb %p transferred: %d bytes\n", urb,
71 urb->actual_length);
72 }
73 if (std->qtd)
74 seq_printf(s, " sTD[%td]: %zu bytes @ %08x\n",
75 std->qtd - &qset->qtd[0],
76 std->len, std->num_pointers ?
77 (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr);
78 else
79 seq_printf(s, " sTD[-]: %zd bytes @ %08x\n",
80 std->len, std->num_pointers ?
81 (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr);
82 }
83}
84
85static int di_print(struct seq_file *s, void *p)
86{
87 struct whc *whc = s->private;
88 char buf[72];
89 int d;
90
91 for (d = 0; d < whc->n_devices; d++) {
92 struct di_buf_entry *di = &whc->di_buf[d];
93
94 bitmap_scnprintf(buf, sizeof(buf),
95 (unsigned long *)di->availability_info, UWB_NUM_MAS);
96
97 seq_printf(s, "DI[%d]\n", d);
98 seq_printf(s, " availability: %s\n", buf);
99 seq_printf(s, " %c%c key idx: %d dev addr: %d\n",
100 (di->addr_sec_info & WHC_DI_SECURE) ? 'S' : ' ',
101 (di->addr_sec_info & WHC_DI_DISABLE) ? 'D' : ' ',
102 (di->addr_sec_info & WHC_DI_KEY_IDX_MASK) >> 8,
103 (di->addr_sec_info & WHC_DI_DEV_ADDR_MASK));
104 }
105 return 0;
106}
107
108static int asl_print(struct seq_file *s, void *p)
109{
110 struct whc *whc = s->private;
111 struct whc_qset *qset;
112
113 list_for_each_entry(qset, &whc->async_list, list_node) {
114 qset_print(s, qset);
115 }
116
117 return 0;
118}
119
120static int pzl_print(struct seq_file *s, void *p)
121{
122 struct whc *whc = s->private;
123 struct whc_qset *qset;
124 int period;
125
126 for (period = 0; period < 5; period++) {
127 seq_printf(s, "Period %d\n", period);
128 list_for_each_entry(qset, &whc->periodic_list[period], list_node) {
129 qset_print(s, qset);
130 }
131 }
132 return 0;
133}
134
135static int di_open(struct inode *inode, struct file *file)
136{
137 return single_open(file, di_print, inode->i_private);
138}
139
140static int asl_open(struct inode *inode, struct file *file)
141{
142 return single_open(file, asl_print, inode->i_private);
143}
144
145static int pzl_open(struct inode *inode, struct file *file)
146{
147 return single_open(file, pzl_print, inode->i_private);
148}
149
150static const struct file_operations di_fops = {
151 .open = di_open,
152 .read = seq_read,
153 .llseek = seq_lseek,
154 .release = single_release,
155 .owner = THIS_MODULE,
156};
157
158static const struct file_operations asl_fops = {
159 .open = asl_open,
160 .read = seq_read,
161 .llseek = seq_lseek,
162 .release = single_release,
163 .owner = THIS_MODULE,
164};
165
166static const struct file_operations pzl_fops = {
167 .open = pzl_open,
168 .read = seq_read,
169 .llseek = seq_lseek,
170 .release = single_release,
171 .owner = THIS_MODULE,
172};
173
174void whc_dbg_init(struct whc *whc)
175{
176 if (whc->wusbhc.pal.debugfs_dir == NULL)
177 return;
178
179 whc->dbg = kzalloc(sizeof(struct whc_dbg), GFP_KERNEL);
180 if (whc->dbg == NULL)
181 return;
182
183 whc->dbg->di_f = debugfs_create_file("di", 0444,
184 whc->wusbhc.pal.debugfs_dir, whc,
185 &di_fops);
186 whc->dbg->asl_f = debugfs_create_file("asl", 0444,
187 whc->wusbhc.pal.debugfs_dir, whc,
188 &asl_fops);
189 whc->dbg->pzl_f = debugfs_create_file("pzl", 0444,
190 whc->wusbhc.pal.debugfs_dir, whc,
191 &pzl_fops);
192}
193
194void whc_dbg_clean_up(struct whc *whc)
195{
196 if (whc->dbg) {
197 debugfs_remove(whc->dbg->pzl_f);
198 debugfs_remove(whc->dbg->asl_f);
199 debugfs_remove(whc->dbg->di_f);
200 kfree(whc->dbg);
201 }
202}
203
