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Merge remote-tracking branch 'cleancache/linux-next'
[linux-2.6/next.git] / drivers / staging / keucr / msscsi.c
blobd1a919b8823ad089a61ef2d7da1634078168a596
1 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
2
3 #include <linux/sched.h>
4 #include <linux/errno.h>
5 #include <linux/slab.h>
6
7 #include <scsi/scsi.h>
8 #include <scsi/scsi_eh.h>
9 #include <scsi/scsi_device.h>
10
11 #include "usb.h"
12 #include "scsiglue.h"
13 #include "transport.h"
14
15 int MS_SCSI_Test_Unit_Ready (struct us_data *us, struct scsi_cmnd *srb);
16 int MS_SCSI_Inquiry (struct us_data *us, struct scsi_cmnd *srb);
17 int MS_SCSI_Mode_Sense (struct us_data *us, struct scsi_cmnd *srb);
18 int MS_SCSI_Start_Stop (struct us_data *us, struct scsi_cmnd *srb);
19 int MS_SCSI_Read_Capacity (struct us_data *us, struct scsi_cmnd *srb);
20 int MS_SCSI_Read (struct us_data *us, struct scsi_cmnd *srb);
21 int MS_SCSI_Write (struct us_data *us, struct scsi_cmnd *srb);
22
23 //----- MS_SCSIIrp() --------------------------------------------------
24 int MS_SCSIIrp(struct us_data *us, struct scsi_cmnd *srb)
25 {
26 int result;
27
28 us->SrbStatus = SS_SUCCESS;
29 switch (srb->cmnd[0])
30 {
31 case TEST_UNIT_READY : result = MS_SCSI_Test_Unit_Ready (us, srb); break; //0x00
32 case INQUIRY : result = MS_SCSI_Inquiry (us, srb); break; //0x12
33 case MODE_SENSE : result = MS_SCSI_Mode_Sense (us, srb); break; //0x1A
34 case READ_CAPACITY : result = MS_SCSI_Read_Capacity (us, srb); break; //0x25
35 case READ_10 : result = MS_SCSI_Read (us, srb); break; //0x28
36 case WRITE_10 : result = MS_SCSI_Write (us, srb); break; //0x2A
37
38 default:
39 us->SrbStatus = SS_ILLEGAL_REQUEST;
40 result = USB_STOR_TRANSPORT_FAILED;
41 break;
42 }
43 return result;
44 }
45
46 //----- MS_SCSI_Test_Unit_Ready() --------------------------------------------------
47 int MS_SCSI_Test_Unit_Ready(struct us_data *us, struct scsi_cmnd *srb)
48 {
49 /* pr_info("MS_SCSI_Test_Unit_Ready\n"); */
50 if (us->MS_Status.Insert && us->MS_Status.Ready)
51 return USB_STOR_TRANSPORT_GOOD;
52 else
53 {
54 ENE_MSInit(us);
55 return USB_STOR_TRANSPORT_GOOD;
56 }
57
58 return USB_STOR_TRANSPORT_GOOD;
59 }
60
61 //----- MS_SCSI_Inquiry() --------------------------------------------------
62 int MS_SCSI_Inquiry(struct us_data *us, struct scsi_cmnd *srb)
63 {
64 /* pr_info("MS_SCSI_Inquiry\n"); */
65 BYTE data_ptr[36] = {0x00, 0x80, 0x02, 0x00, 0x1F, 0x00, 0x00, 0x00, 0x55, 0x53, 0x42, 0x32, 0x2E, 0x30, 0x20, 0x20, 0x43, 0x61, 0x72, 0x64, 0x52, 0x65, 0x61, 0x64, 0x65, 0x72, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x30, 0x31, 0x30, 0x30};
66
67 usb_stor_set_xfer_buf(us, data_ptr, 36, srb, TO_XFER_BUF);
68 return USB_STOR_TRANSPORT_GOOD;
69 }
70
71
72 //----- MS_SCSI_Mode_Sense() --------------------------------------------------
73 int MS_SCSI_Mode_Sense(struct us_data *us, struct scsi_cmnd *srb)
74 {
75 BYTE mediaNoWP[12] = {0x0b,0x00,0x00,0x08,0x00,0x00,0x71,0xc0,0x00,0x00,0x02,0x00};
76 BYTE mediaWP[12] = {0x0b,0x00,0x80,0x08,0x00,0x00,0x71,0xc0,0x00,0x00,0x02,0x00};
77
78 if (us->MS_Status.WtP)
79 usb_stor_set_xfer_buf(us, mediaWP, 12, srb, TO_XFER_BUF);
80 else
81 usb_stor_set_xfer_buf(us, mediaNoWP, 12, srb, TO_XFER_BUF);
82
83
84 return USB_STOR_TRANSPORT_GOOD;
85 }
86
87 //----- MS_SCSI_Read_Capacity() --------------------------------------------------
88 int MS_SCSI_Read_Capacity(struct us_data *us, struct scsi_cmnd *srb)
89 {
90 unsigned int offset = 0;
91 struct scatterlist *sg = NULL;
92 DWORD bl_num;
93 WORD bl_len;
94 BYTE buf[8];
95
96 pr_info("MS_SCSI_Read_Capacity\n");
97
98 bl_len = 0x200;
99 if ( us->MS_Status.IsMSPro )
100 bl_num = us->MSP_TotalBlock - 1;
101 else
102 bl_num = us->MS_Lib.NumberOfLogBlock * us->MS_Lib.blockSize * 2 - 1;
103
104 us->bl_num = bl_num;
105 pr_info("bl_len = %x\n", bl_len);
106 pr_info("bl_num = %x\n", bl_num);
107
108 //srb->request_bufflen = 8;
109 buf[0] = (bl_num>>24) & 0xff;
110 buf[1] = (bl_num>>16) & 0xff;
111 buf[2] = (bl_num>> 8) & 0xff;
112 buf[3] = (bl_num>> 0) & 0xff;
113 buf[4] = (bl_len>>24) & 0xff;
114 buf[5] = (bl_len>>16) & 0xff;
115 buf[6] = (bl_len>> 8) & 0xff;
116 buf[7] = (bl_len>> 0) & 0xff;
117
118 usb_stor_access_xfer_buf(us, buf, 8, srb, &sg, &offset, TO_XFER_BUF);
119 //usb_stor_set_xfer_buf(us, buf, srb->request_bufflen, srb, TO_XFER_BUF);
120
121 return USB_STOR_TRANSPORT_GOOD;
122 }
123
124 //----- MS_SCSI_Read() --------------------------------------------------
125 int MS_SCSI_Read(struct us_data *us, struct scsi_cmnd *srb)
126 {
127 struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
128 int result=0;
129 PBYTE Cdb = srb->cmnd;
130 DWORD bn = ((Cdb[2]<<24) & 0xff000000) | ((Cdb[3]<<16) & 0x00ff0000) |
131 ((Cdb[4]<< 8) & 0x0000ff00) | ((Cdb[5]<< 0) & 0x000000ff);
132 WORD blen = ((Cdb[7]<< 8) & 0xff00) | ((Cdb[8]<< 0) & 0x00ff);
133 DWORD blenByte = blen * 0x200;
134
135 /* pr_info("SCSIOP_READ --- bn = %X, blen = %X, srb->use_sg = %X\n",
136 bn, blen, srb->use_sg); */
137
138 if (bn > us->bl_num)
139 return USB_STOR_TRANSPORT_ERROR;
140
141 if (us->MS_Status.IsMSPro)
142 {
143 result = ENE_LoadBinCode(us, MSP_RW_PATTERN);
144 if (result != USB_STOR_XFER_GOOD)
145 {
146 pr_info("Load MSP RW pattern Fail !!\n");
147 return USB_STOR_TRANSPORT_ERROR;
148 }
149
150 // set up the command wrapper
151 memset(bcb, 0, sizeof(struct bulk_cb_wrap));
152 bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
153 bcb->DataTransferLength = blenByte;
154 bcb->Flags = 0x80;
155 bcb->CDB[0] = 0xF1;
156 bcb->CDB[1] = 0x02;
157 bcb->CDB[5] = (BYTE)(bn);
158 bcb->CDB[4] = (BYTE)(bn>>8);
159 bcb->CDB[3] = (BYTE)(bn>>16);
160 bcb->CDB[2] = (BYTE)(bn>>24);
161
162 result = ENE_SendScsiCmd(us, FDIR_READ, scsi_sglist(srb), 1);
163 }
164 else
165 {
166 void *buf;
167 int offset=0;
168 WORD phyblk, logblk;
169 BYTE PageNum;
170 WORD len;
171 DWORD blkno;
172
173 buf = kmalloc(blenByte, GFP_KERNEL);
174 if (buf == NULL)
175 return USB_STOR_TRANSPORT_ERROR;
176
177 result = ENE_LoadBinCode(us, MS_RW_PATTERN);
178 if (result != USB_STOR_XFER_GOOD)
179 {
180 pr_info("Load MS RW pattern Fail !!\n");
181 result = USB_STOR_TRANSPORT_ERROR;
182 goto exit;
183 }
184
185 logblk = (WORD)(bn / us->MS_Lib.PagesPerBlock);
186 PageNum = (BYTE)(bn % us->MS_Lib.PagesPerBlock);
187
188 while(1)
189 {
190 if (blen > (us->MS_Lib.PagesPerBlock-PageNum) )
191 len = us->MS_Lib.PagesPerBlock-PageNum;
192 else
193 len = blen;
194
195 phyblk = MS_LibConv2Physical(us, logblk);
196 blkno = phyblk * 0x20 + PageNum;
197
198 // set up the command wrapper
199 memset(bcb, 0, sizeof(struct bulk_cb_wrap));
200 bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
201 bcb->DataTransferLength = 0x200 * len;
202 bcb->Flags = 0x80;
203 bcb->CDB[0] = 0xF1;
204 bcb->CDB[1] = 0x02;
205 bcb->CDB[5] = (BYTE)(blkno);
206 bcb->CDB[4] = (BYTE)(blkno>>8);
207 bcb->CDB[3] = (BYTE)(blkno>>16);
208 bcb->CDB[2] = (BYTE)(blkno>>24);
209
210 result = ENE_SendScsiCmd(us, FDIR_READ, buf+offset, 0);
211 if (result != USB_STOR_XFER_GOOD)
212 {
213 pr_info("MS_SCSI_Read --- result = %x\n",
214 result);
215 result = USB_STOR_TRANSPORT_ERROR;
216 goto exit;
217 }
218
219 blen -= len;
220 if (blen<=0)
221 break;
222 logblk++;
223 PageNum = 0;
224 offset += MS_BYTES_PER_PAGE*len;
225 }
226 usb_stor_set_xfer_buf(us, buf, blenByte, srb, TO_XFER_BUF);
227 exit:
228 kfree(buf);
229 }
230 return result;
231 }
232
233 //----- MS_SCSI_Write() --------------------------------------------------
234 int MS_SCSI_Write(struct us_data *us, struct scsi_cmnd *srb)
235 {
236 struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
237 int result=0;
238 PBYTE Cdb = srb->cmnd;
239 DWORD bn = ((Cdb[2]<<24) & 0xff000000) | ((Cdb[3]<<16) & 0x00ff0000) |
240 ((Cdb[4]<< 8) & 0x0000ff00) | ((Cdb[5]<< 0) & 0x000000ff);
241 WORD blen = ((Cdb[7]<< 8) & 0xff00) | ((Cdb[8]<< 0) & 0x00ff);
242 DWORD blenByte = blen * 0x200;
243
244 if (bn > us->bl_num)
245 return USB_STOR_TRANSPORT_ERROR;
246
247 if (us->MS_Status.IsMSPro)
248 {
249 result = ENE_LoadBinCode(us, MSP_RW_PATTERN);
250 if (result != USB_STOR_XFER_GOOD)
251 {
252 pr_info("Load MSP RW pattern Fail !!\n");
253 return USB_STOR_TRANSPORT_ERROR;
254 }
255
256 // set up the command wrapper
257 memset(bcb, 0, sizeof(struct bulk_cb_wrap));
258 bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
259 bcb->DataTransferLength = blenByte;
260 bcb->Flags = 0x00;
261 bcb->CDB[0] = 0xF0;
262 bcb->CDB[1] = 0x04;
263 bcb->CDB[5] = (BYTE)(bn);
264 bcb->CDB[4] = (BYTE)(bn>>8);
265 bcb->CDB[3] = (BYTE)(bn>>16);
266 bcb->CDB[2] = (BYTE)(bn>>24);
267
268 result = ENE_SendScsiCmd(us, FDIR_WRITE, scsi_sglist(srb), 1);
269 }
270 else
271 {
272 void *buf;
273 int offset=0;
274 WORD PhyBlockAddr;
275 BYTE PageNum;
276 DWORD result;
277 WORD len, oldphy, newphy;
278
279 buf = kmalloc(blenByte, GFP_KERNEL);
280 if (buf == NULL)
281 return USB_STOR_TRANSPORT_ERROR;
282 usb_stor_set_xfer_buf(us, buf, blenByte, srb, FROM_XFER_BUF);
283
284 result = ENE_LoadBinCode(us, MS_RW_PATTERN);
285 if (result != USB_STOR_XFER_GOOD)
286 {
287 pr_info("Load MS RW pattern Fail !!\n");
288 result = USB_STOR_TRANSPORT_ERROR;
289 goto exit;
290 }
291
292 PhyBlockAddr = (WORD)(bn / us->MS_Lib.PagesPerBlock);
293 PageNum = (BYTE)(bn % us->MS_Lib.PagesPerBlock);
294
295 while(1)
296 {
297 if (blen > (us->MS_Lib.PagesPerBlock-PageNum) )
298 len = us->MS_Lib.PagesPerBlock-PageNum;
299 else
300 len = blen;
301
302 oldphy = MS_LibConv2Physical(us, PhyBlockAddr);
303 newphy = MS_LibSearchBlockFromLogical(us, PhyBlockAddr);
304
305 result = MS_ReaderCopyBlock(us, oldphy, newphy, PhyBlockAddr, PageNum, buf+offset, len);
306 if (result != USB_STOR_XFER_GOOD)
307 {
308 pr_info("MS_SCSI_Write --- result = %x\n",
309 result);
310 result = USB_STOR_TRANSPORT_ERROR;
311 goto exit;
312 }
313
314 us->MS_Lib.Phy2LogMap[oldphy] = MS_LB_NOT_USED_ERASED;
315 MS_LibForceSetLogicalPair(us, PhyBlockAddr, newphy);
316
317 blen -= len;
318 if (blen<=0)
319 break;
320 PhyBlockAddr++;
321 PageNum = 0;
322 offset += MS_BYTES_PER_PAGE*len;
323 }
324 exit:
325 kfree(buf);
326 }
327 return result;
328 }
329
linux-next