1 #include <linux/sched.h>
2 #include <linux/errno.h>
3 #include <linux/slab.h>
6 #include <scsi/scsi_eh.h>
7 #include <scsi/scsi_device.h>
11 #include "transport.h"
14 static int SM_SCSI_Test_Unit_Ready(struct us_data *us, struct scsi_cmnd *srb);
15 static int SM_SCSI_Inquiry(struct us_data *us, struct scsi_cmnd *srb);
16 static int SM_SCSI_Mode_Sense(struct us_data *us, struct scsi_cmnd *srb);
17 static int SM_SCSI_Read_Capacity(struct us_data *us, struct scsi_cmnd *srb);
18 static int SM_SCSI_Read(struct us_data *us, struct scsi_cmnd *srb);
19 static int SM_SCSI_Write(struct us_data *us, struct scsi_cmnd *srb);
21 /* ----- SM_SCSIIrp() -------------------------------------------------- */
22 int SM_SCSIIrp(struct us_data *us, struct scsi_cmnd *srb)
26 us->SrbStatus = SS_SUCCESS;
27 switch (srb->cmnd[0]) {
29 result = SM_SCSI_Test_Unit_Ready(us, srb);
32 result = SM_SCSI_Inquiry(us, srb);
35 result = SM_SCSI_Mode_Sense(us, srb);
38 result = SM_SCSI_Read_Capacity(us, srb);
41 result = SM_SCSI_Read(us, srb);
44 result = SM_SCSI_Write(us, srb);
48 us->SrbStatus = SS_ILLEGAL_REQUEST;
49 result = USB_STOR_TRANSPORT_FAILED;
55 /* ----- SM_SCSI_Test_Unit_Ready() ------------------------------------- */
56 static int SM_SCSI_Test_Unit_Ready(struct us_data *us, struct scsi_cmnd *srb)
58 if (us->SM_Status.Insert && us->SM_Status.Ready)
59 return USB_STOR_TRANSPORT_GOOD;
62 return USB_STOR_TRANSPORT_GOOD;
65 return USB_STOR_TRANSPORT_GOOD;
68 /* ----- SM_SCSI_Inquiry() --------------------------------------------- */
69 static int SM_SCSI_Inquiry(struct us_data *us, struct scsi_cmnd *srb)
71 u8 data_ptr[36] = {0x00, 0x80, 0x02, 0x00, 0x1F, 0x00, 0x00, 0x00,
72 0x55, 0x53, 0x42, 0x32, 0x2E, 0x30, 0x20,
73 0x20, 0x43, 0x61, 0x72, 0x64, 0x52, 0x65,
74 0x61, 0x64, 0x65, 0x72, 0x20, 0x20, 0x20,
75 0x20, 0x20, 0x20, 0x30, 0x31, 0x30, 0x30};
77 usb_stor_set_xfer_buf(us, data_ptr, 36, srb, TO_XFER_BUF);
78 return USB_STOR_TRANSPORT_GOOD;
82 /* ----- SM_SCSI_Mode_Sense() ------------------------------------------ */
83 static int SM_SCSI_Mode_Sense(struct us_data *us, struct scsi_cmnd *srb)
85 u8 mediaNoWP[12] = {0x0b, 0x00, 0x00, 0x08, 0x00, 0x00,
86 0x71, 0xc0, 0x00, 0x00, 0x02, 0x00};
87 u8 mediaWP[12] = {0x0b, 0x00, 0x80, 0x08, 0x00, 0x00,
88 0x71, 0xc0, 0x00, 0x00, 0x02, 0x00};
90 if (us->SM_Status.WtP)
91 usb_stor_set_xfer_buf(us, mediaWP, 12, srb, TO_XFER_BUF);
93 usb_stor_set_xfer_buf(us, mediaNoWP, 12, srb, TO_XFER_BUF);
96 return USB_STOR_TRANSPORT_GOOD;
99 /* ----- SM_SCSI_Read_Capacity() --------------------------------------- */
100 static int SM_SCSI_Read_Capacity(struct us_data *us, struct scsi_cmnd *srb)
102 unsigned int offset = 0;
103 struct scatterlist *sg = NULL;
108 dev_dbg(&us->pusb_dev->dev, "SM_SCSI_Read_Capacity\n");
111 bl_num = Ssfdc.MaxLogBlocks * Ssfdc.MaxSectors * Ssfdc.MaxZones - 1;
114 dev_dbg(&us->pusb_dev->dev, "bl_len = %x\n", bl_len);
115 dev_dbg(&us->pusb_dev->dev, "bl_num = %x\n", bl_num);
117 buf[0] = (bl_num >> 24) & 0xff;
118 buf[1] = (bl_num >> 16) & 0xff;
119 buf[2] = (bl_num >> 8) & 0xff;
120 buf[3] = (bl_num >> 0) & 0xff;
121 buf[4] = (bl_len >> 24) & 0xff;
122 buf[5] = (bl_len >> 16) & 0xff;
123 buf[6] = (bl_len >> 8) & 0xff;
124 buf[7] = (bl_len >> 0) & 0xff;
126 usb_stor_access_xfer_buf(us, buf, 8, srb, &sg, &offset, TO_XFER_BUF);
128 return USB_STOR_TRANSPORT_GOOD;
131 /* ----- SM_SCSI_Read() -------------------------------------------------- */
132 static int SM_SCSI_Read(struct us_data *us, struct scsi_cmnd *srb)
136 u32 bn = ((Cdb[2] << 24) & 0xff000000) |
137 ((Cdb[3] << 16) & 0x00ff0000) |
138 ((Cdb[4] << 8) & 0x0000ff00) |
139 ((Cdb[5] << 0) & 0x000000ff);
140 u16 blen = ((Cdb[7] << 8) & 0xff00) | ((Cdb[8] << 0) & 0x00ff);
141 u32 blenByte = blen * 0x200;
146 return USB_STOR_TRANSPORT_ERROR;
148 buf = kmalloc(blenByte, GFP_KERNEL);
150 return USB_STOR_TRANSPORT_ERROR;
151 result = Media_D_ReadSector(us, bn, blen, buf);
152 usb_stor_set_xfer_buf(us, buf, blenByte, srb, TO_XFER_BUF);
156 return USB_STOR_TRANSPORT_GOOD;
158 return USB_STOR_TRANSPORT_ERROR;
160 return USB_STOR_TRANSPORT_GOOD;
163 /* ----- SM_SCSI_Write() -------------------------------------------------- */
164 static int SM_SCSI_Write(struct us_data *us, struct scsi_cmnd *srb)
168 u32 bn = ((Cdb[2] << 24) & 0xff000000) |
169 ((Cdb[3] << 16) & 0x00ff0000) |
170 ((Cdb[4] << 8) & 0x0000ff00) |
171 ((Cdb[5] << 0) & 0x000000ff);
172 u16 blen = ((Cdb[7] << 8) & 0xff00) | ((Cdb[8] << 0) & 0x00ff);
173 u32 blenByte = blen * 0x200;
178 return USB_STOR_TRANSPORT_ERROR;
180 buf = kmalloc(blenByte, GFP_KERNEL);
182 return USB_STOR_TRANSPORT_ERROR;
183 usb_stor_set_xfer_buf(us, buf, blenByte, srb, FROM_XFER_BUF);
184 result = Media_D_CopySector(us, bn, blen, buf);
188 return USB_STOR_TRANSPORT_GOOD;
190 return USB_STOR_TRANSPORT_ERROR;
192 return USB_STOR_TRANSPORT_GOOD;