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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
|
#include <linux/sched.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <scsi/scsi.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_device.h>
#include "usb.h"
#include "scsiglue.h"
#include "transport.h"
#include "init.h"
/*
* ENE_InitMedia():
*/
int ENE_InitMedia(struct us_data *us)
{
int result;
BYTE MiscReg03 = 0;
dev_info(&us->pusb_dev->dev, "--- Init Media ---\n");
result = ene_read_byte(us, REG_CARD_STATUS, &MiscReg03);
if (result != USB_STOR_XFER_GOOD) {
dev_err(&us->pusb_dev->dev, "Failed to read register\n");
return USB_STOR_TRANSPORT_ERROR;
}
dev_info(&us->pusb_dev->dev, "MiscReg03 = %x\n", MiscReg03);
if (MiscReg03 & 0x02) {
if (!us->SM_Status.Ready && !us->MS_Status.Ready) {
result = ENE_SMInit(us);
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
}
}
return result;
}
/*
* ene_read_byte() :
*/
int ene_read_byte(struct us_data *us, WORD index, void *buf)
{
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
int result;
memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x01;
bcb->Flags = 0x80;
bcb->CDB[0] = 0xED;
bcb->CDB[2] = (BYTE)(index>>8);
bcb->CDB[3] = (BYTE)index;
result = ENE_SendScsiCmd(us, FDIR_READ, buf, 0);
return result;
}
/*
*ENE_SMInit()
*/
int ENE_SMInit(struct us_data *us)
{
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
int result;
BYTE buf[0x200];
dev_dbg(&us->pusb_dev->dev, "transport --- ENE_SMInit\n");
result = ENE_LoadBinCode(us, SM_INIT_PATTERN);
if (result != USB_STOR_XFER_GOOD) {
dev_info(&us->pusb_dev->dev,
"Failed to load SmartMedia init code\n: result= %x\n",
result);
return USB_STOR_TRANSPORT_ERROR;
}
memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x200;
bcb->Flags = 0x80;
bcb->CDB[0] = 0xF1;
bcb->CDB[1] = 0x01;
result = ENE_SendScsiCmd(us, FDIR_READ, &buf, 0);
if (result != USB_STOR_XFER_GOOD) {
dev_err(&us->pusb_dev->dev,
"Failed to load SmartMedia init code: result = %x\n",
result);
return USB_STOR_TRANSPORT_ERROR;
}
us->SM_Status = *(struct keucr_sm_status *)&buf[0];
us->SM_DeviceID = buf[1];
us->SM_CardID = buf[2];
if (us->SM_Status.Insert && us->SM_Status.Ready) {
dev_info(&us->pusb_dev->dev, "Insert = %x\n",
us->SM_Status.Insert);
dev_info(&us->pusb_dev->dev, "Ready = %x\n",
us->SM_Status.Ready);
dev_info(&us->pusb_dev->dev, "WtP = %x\n",
us->SM_Status.WtP);
dev_info(&us->pusb_dev->dev, "DeviceID = %x\n",
us->SM_DeviceID);
dev_info(&us->pusb_dev->dev, "CardID = %x\n",
us->SM_CardID);
MediaChange = 1;
Check_D_MediaFmt(us);
} else {
dev_err(&us->pusb_dev->dev,
"SmartMedia Card Not Ready --- %x\n", buf[0]);
return USB_STOR_TRANSPORT_ERROR;
}
return USB_STOR_TRANSPORT_GOOD;
}
/*
* ENE_LoadBinCode()
*/
int ENE_LoadBinCode(struct us_data *us, BYTE flag)
{
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
int result;
/* void *buf; */
PBYTE buf;
/* dev_info(&us->pusb_dev->dev, "transport --- ENE_LoadBinCode\n"); */
if (us->BIN_FLAG == flag)
return USB_STOR_TRANSPORT_GOOD;
buf = kmalloc(0x800, GFP_KERNEL);
if (buf == NULL)
return USB_STOR_TRANSPORT_ERROR;
switch (flag) {
/* For SS */
case SM_INIT_PATTERN:
dev_dbg(&us->pusb_dev->dev, "SM_INIT_PATTERN\n");
memcpy(buf, SM_Init, 0x800);
break;
case SM_RW_PATTERN:
dev_dbg(&us->pusb_dev->dev, "SM_RW_PATTERN\n");
memcpy(buf, SM_Rdwr, 0x800);
break;
}
memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x800;
bcb->Flags = 0x00;
bcb->CDB[0] = 0xEF;
result = ENE_SendScsiCmd(us, FDIR_WRITE, buf, 0);
kfree(buf);
us->BIN_FLAG = flag;
return result;
}
/*
* ENE_SendScsiCmd():
*/
int ENE_SendScsiCmd(struct us_data *us, BYTE fDir, void *buf, int use_sg)
{
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *) us->iobuf;
int result;
unsigned int transfer_length = bcb->DataTransferLength,
cswlen = 0, partial = 0;
unsigned int residue;
/* dev_dbg(&us->pusb_dev->dev, "transport --- ENE_SendScsiCmd\n"); */
/* send cmd to out endpoint */
result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
bcb, US_BULK_CB_WRAP_LEN, NULL);
if (result != USB_STOR_XFER_GOOD) {
dev_err(&us->pusb_dev->dev,
"send cmd to out endpoint fail ---\n");
return USB_STOR_TRANSPORT_ERROR;
}
if (buf) {
unsigned int pipe = fDir;
if (fDir == FDIR_READ)
pipe = us->recv_bulk_pipe;
else
pipe = us->send_bulk_pipe;
/* Bulk */
if (use_sg)
result = usb_stor_bulk_srb(us, pipe, us->srb);
else
result = usb_stor_bulk_transfer_sg(us, pipe, buf,
transfer_length, 0, &partial);
if (result != USB_STOR_XFER_GOOD) {
dev_err(&us->pusb_dev->dev, "data transfer fail ---\n");
return USB_STOR_TRANSPORT_ERROR;
}
}
/* Get CSW for device status */
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, bcs,
US_BULK_CS_WRAP_LEN, &cswlen);
if (result == USB_STOR_XFER_SHORT && cswlen == 0) {
dev_warn(&us->pusb_dev->dev,
"Received 0-length CSW; retrying...\n");
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
bcs, US_BULK_CS_WRAP_LEN, &cswlen);
}
if (result == USB_STOR_XFER_STALLED) {
/* get the status again */
dev_warn(&us->pusb_dev->dev,
"Attempting to get CSW (2nd try)...\n");
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
bcs, US_BULK_CS_WRAP_LEN, NULL);
}
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
/* check bulk status */
residue = le32_to_cpu(bcs->Residue);
/*
* try to compute the actual residue, based on how much data
* was really transferred and what the device tells us
*/
if (residue && !(us->fflags & US_FL_IGNORE_RESIDUE)) {
residue = min(residue, transfer_length);
if (us->srb)
scsi_set_resid(us->srb, max(scsi_get_resid(us->srb),
(int) residue));
}
if (bcs->Status != US_BULK_STAT_OK)
return USB_STOR_TRANSPORT_ERROR;
return USB_STOR_TRANSPORT_GOOD;
}
/*
* ENE_Read_Data()
*/
int ENE_Read_Data(struct us_data *us, void *buf, unsigned int length)
{
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *) us->iobuf;
int result;
/* dev_dbg(&us->pusb_dev->dev, "transport --- ENE_Read_Data\n"); */
/* set up the command wrapper */
memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = length;
bcb->Flags = 0x80;
bcb->CDB[0] = 0xED;
bcb->CDB[2] = 0xFF;
bcb->CDB[3] = 0x81;
/* send cmd to out endpoint */
result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, bcb,
US_BULK_CB_WRAP_LEN, NULL);
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
/* R/W data */
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
buf, length, NULL);
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
/* Get CSW for device status */
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, bcs,
US_BULK_CS_WRAP_LEN, NULL);
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
if (bcs->Status != US_BULK_STAT_OK)
return USB_STOR_TRANSPORT_ERROR;
return USB_STOR_TRANSPORT_GOOD;
}
/*
* ENE_Write_Data():
*/
int ENE_Write_Data(struct us_data *us, void *buf, unsigned int length)
{
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *) us->iobuf;
int result;
/* printk("transport --- ENE_Write_Data\n"); */
/* set up the command wrapper */
memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = length;
bcb->Flags = 0x00;
bcb->CDB[0] = 0xEE;
bcb->CDB[2] = 0xFF;
bcb->CDB[3] = 0x81;
/* send cmd to out endpoint */
result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, bcb,
US_BULK_CB_WRAP_LEN, NULL);
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
/* R/W data */
result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
buf, length, NULL);
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
/* Get CSW for device status */
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, bcs,
US_BULK_CS_WRAP_LEN, NULL);
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
if (bcs->Status != US_BULK_STAT_OK)
return USB_STOR_TRANSPORT_ERROR;
return USB_STOR_TRANSPORT_GOOD;
}
|
