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1 | 2e5d83bb | pbrook | /*
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2 | 2e5d83bb | pbrook | * SCSI Device emulation
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3 | 2e5d83bb | pbrook | *
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4 | 2e5d83bb | pbrook | * Copyright (c) 2006 CodeSourcery.
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5 | 2e5d83bb | pbrook | * Based on code by Fabrice Bellard
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6 | 2e5d83bb | pbrook | *
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7 | 2e5d83bb | pbrook | * Written by Paul Brook
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8 | 2e5d83bb | pbrook | *
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9 | 2e5d83bb | pbrook | * This code is licenced under the LGPL.
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10 | a917d384 | pbrook | *
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11 | a917d384 | pbrook | * Note that this file only handles the SCSI architecture model and device
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12 | 1d4db89c | balrog | * commands. Emulation of interface/link layer protocols is handled by
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13 | 1d4db89c | balrog | * the host adapter emulator.
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14 | 2e5d83bb | pbrook | */
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15 | 2e5d83bb | pbrook | |
16 | 2e5d83bb | pbrook | //#define DEBUG_SCSI
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17 | 2e5d83bb | pbrook | |
18 | 2e5d83bb | pbrook | #ifdef DEBUG_SCSI
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19 | 2e5d83bb | pbrook | #define DPRINTF(fmt, args...) \
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20 | 2e5d83bb | pbrook | do { printf("scsi-disk: " fmt , ##args); } while (0) |
21 | 2e5d83bb | pbrook | #else
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22 | 2e5d83bb | pbrook | #define DPRINTF(fmt, args...) do {} while(0) |
23 | 2e5d83bb | pbrook | #endif
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24 | 2e5d83bb | pbrook | |
25 | 2e5d83bb | pbrook | #define BADF(fmt, args...) \
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26 | 2e5d83bb | pbrook | do { fprintf(stderr, "scsi-disk: " fmt , ##args); } while (0) |
27 | 2e5d83bb | pbrook | |
28 | 87ecb68b | pbrook | #include "qemu-common.h" |
29 | 87ecb68b | pbrook | #include "block.h" |
30 | 87ecb68b | pbrook | #include "scsi-disk.h" |
31 | 2e5d83bb | pbrook | |
32 | 2e5d83bb | pbrook | #define SENSE_NO_SENSE 0 |
33 | 1aacf348 | pbrook | #define SENSE_NOT_READY 2 |
34 | 4d611c9a | pbrook | #define SENSE_HARDWARE_ERROR 4 |
35 | 2e5d83bb | pbrook | #define SENSE_ILLEGAL_REQUEST 5 |
36 | 2e5d83bb | pbrook | |
37 | 22864256 | blueswir1 | #define STATUS_GOOD 0 |
38 | 22864256 | blueswir1 | #define STATUS_CHECK_CONDITION 2 |
39 | 22864256 | blueswir1 | |
40 | f0f72ffe | aurel32 | #define SCSI_DMA_BUF_SIZE 131072 |
41 | 57575058 | balrog | #define SCSI_MAX_INQUIRY_LEN 256 |
42 | a917d384 | pbrook | |
43 | a917d384 | pbrook | typedef struct SCSIRequest { |
44 | 8ccc2ace | ths | SCSIDeviceState *dev; |
45 | 2e5d83bb | pbrook | uint32_t tag; |
46 | 2e5d83bb | pbrook | /* ??? We should probably keep track of whether the data trasfer is
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47 | 2e5d83bb | pbrook | a read or a write. Currently we rely on the host getting it right. */
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48 | a917d384 | pbrook | /* Both sector and sector_count are in terms of qemu 512 byte blocks. */
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49 | 2e5d83bb | pbrook | int sector;
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50 | 2e5d83bb | pbrook | int sector_count;
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51 | a917d384 | pbrook | /* The amounnt of data in the buffer. */
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52 | 2e5d83bb | pbrook | int buf_len;
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53 | 33f00271 | balrog | uint8_t *dma_buf; |
54 | 4d611c9a | pbrook | BlockDriverAIOCB *aiocb; |
55 | a917d384 | pbrook | struct SCSIRequest *next;
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56 | a917d384 | pbrook | } SCSIRequest; |
57 | a917d384 | pbrook | |
58 | 8ccc2ace | ths | struct SCSIDeviceState
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59 | a917d384 | pbrook | { |
60 | a917d384 | pbrook | BlockDriverState *bdrv; |
61 | a917d384 | pbrook | SCSIRequest *requests; |
62 | a917d384 | pbrook | /* The qemu block layer uses a fixed 512 byte sector size.
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63 | a917d384 | pbrook | This is the number of 512 byte blocks in a single scsi sector. */
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64 | a917d384 | pbrook | int cluster_size;
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65 | a917d384 | pbrook | int sense;
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66 | a917d384 | pbrook | int tcq;
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67 | 4d611c9a | pbrook | /* Completion functions may be called from either scsi_{read,write}_data
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68 | 4d611c9a | pbrook | or from the AIO completion routines. */
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69 | 2e5d83bb | pbrook | scsi_completionfn completion; |
70 | 2e5d83bb | pbrook | void *opaque;
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71 | 2e5d83bb | pbrook | }; |
72 | 2e5d83bb | pbrook | |
73 | a917d384 | pbrook | /* Global pool of SCSIRequest structures. */
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74 | a917d384 | pbrook | static SCSIRequest *free_requests = NULL; |
75 | a917d384 | pbrook | |
76 | 8ccc2ace | ths | static SCSIRequest *scsi_new_request(SCSIDeviceState *s, uint32_t tag)
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77 | 2e5d83bb | pbrook | { |
78 | a917d384 | pbrook | SCSIRequest *r; |
79 | a917d384 | pbrook | |
80 | a917d384 | pbrook | if (free_requests) {
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81 | a917d384 | pbrook | r = free_requests; |
82 | a917d384 | pbrook | free_requests = r->next; |
83 | a917d384 | pbrook | } else {
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84 | a917d384 | pbrook | r = qemu_malloc(sizeof(SCSIRequest));
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85 | 33f00271 | balrog | r->dma_buf = qemu_memalign(512, SCSI_DMA_BUF_SIZE);
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86 | a917d384 | pbrook | } |
87 | a917d384 | pbrook | r->dev = s; |
88 | a917d384 | pbrook | r->tag = tag; |
89 | a917d384 | pbrook | r->sector_count = 0;
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90 | a917d384 | pbrook | r->buf_len = 0;
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91 | a917d384 | pbrook | r->aiocb = NULL;
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92 | a917d384 | pbrook | |
93 | a917d384 | pbrook | r->next = s->requests; |
94 | a917d384 | pbrook | s->requests = r; |
95 | a917d384 | pbrook | return r;
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96 | 2e5d83bb | pbrook | } |
97 | 2e5d83bb | pbrook | |
98 | a917d384 | pbrook | static void scsi_remove_request(SCSIRequest *r) |
99 | 4d611c9a | pbrook | { |
100 | a917d384 | pbrook | SCSIRequest *last; |
101 | 8ccc2ace | ths | SCSIDeviceState *s = r->dev; |
102 | a917d384 | pbrook | |
103 | a917d384 | pbrook | if (s->requests == r) {
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104 | a917d384 | pbrook | s->requests = r->next; |
105 | a917d384 | pbrook | } else {
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106 | a917d384 | pbrook | last = s->requests; |
107 | a917d384 | pbrook | while (last && last->next != r)
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108 | a917d384 | pbrook | last = last->next; |
109 | a917d384 | pbrook | if (last) {
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110 | a917d384 | pbrook | last->next = r->next; |
111 | a917d384 | pbrook | } else {
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112 | a917d384 | pbrook | BADF("Orphaned request\n");
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113 | a917d384 | pbrook | } |
114 | a917d384 | pbrook | } |
115 | a917d384 | pbrook | r->next = free_requests; |
116 | a917d384 | pbrook | free_requests = r; |
117 | 4d611c9a | pbrook | } |
118 | 4d611c9a | pbrook | |
119 | 8ccc2ace | ths | static SCSIRequest *scsi_find_request(SCSIDeviceState *s, uint32_t tag)
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120 | 4d611c9a | pbrook | { |
121 | a917d384 | pbrook | SCSIRequest *r; |
122 | 4d611c9a | pbrook | |
123 | a917d384 | pbrook | r = s->requests; |
124 | a917d384 | pbrook | while (r && r->tag != tag)
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125 | a917d384 | pbrook | r = r->next; |
126 | 4d611c9a | pbrook | |
127 | a917d384 | pbrook | return r;
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128 | a917d384 | pbrook | } |
129 | a917d384 | pbrook | |
130 | a917d384 | pbrook | /* Helper function for command completion. */
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131 | 22864256 | blueswir1 | static void scsi_command_complete(SCSIRequest *r, int status, int sense) |
132 | a917d384 | pbrook | { |
133 | 8ccc2ace | ths | SCSIDeviceState *s = r->dev; |
134 | a917d384 | pbrook | uint32_t tag; |
135 | 22864256 | blueswir1 | DPRINTF("Command complete tag=0x%x status=%d sense=%d\n", r->tag, status, sense);
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136 | a917d384 | pbrook | s->sense = sense; |
137 | a917d384 | pbrook | tag = r->tag; |
138 | a917d384 | pbrook | scsi_remove_request(r); |
139 | 22864256 | blueswir1 | s->completion(s->opaque, SCSI_REASON_DONE, tag, status); |
140 | 4d611c9a | pbrook | } |
141 | 4d611c9a | pbrook | |
142 | 4d611c9a | pbrook | /* Cancel a pending data transfer. */
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143 | 8ccc2ace | ths | static void scsi_cancel_io(SCSIDevice *d, uint32_t tag) |
144 | 4d611c9a | pbrook | { |
145 | 8ccc2ace | ths | SCSIDeviceState *s = d->state; |
146 | a917d384 | pbrook | SCSIRequest *r; |
147 | a917d384 | pbrook | DPRINTF("Cancel tag=0x%x\n", tag);
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148 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
149 | a917d384 | pbrook | if (r) {
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150 | a917d384 | pbrook | if (r->aiocb)
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151 | a917d384 | pbrook | bdrv_aio_cancel(r->aiocb); |
152 | a917d384 | pbrook | r->aiocb = NULL;
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153 | a917d384 | pbrook | scsi_remove_request(r); |
154 | a917d384 | pbrook | } |
155 | a917d384 | pbrook | } |
156 | a917d384 | pbrook | |
157 | a917d384 | pbrook | static void scsi_read_complete(void * opaque, int ret) |
158 | a917d384 | pbrook | { |
159 | a917d384 | pbrook | SCSIRequest *r = (SCSIRequest *)opaque; |
160 | 8ccc2ace | ths | SCSIDeviceState *s = r->dev; |
161 | a917d384 | pbrook | |
162 | a917d384 | pbrook | if (ret) {
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163 | a917d384 | pbrook | DPRINTF("IO error\n");
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164 | 22864256 | blueswir1 | s->completion(s->opaque, SCSI_REASON_DATA, r->tag, 0);
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165 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_NO_SENSE); |
166 | 4d611c9a | pbrook | return;
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167 | 4d611c9a | pbrook | } |
168 | a917d384 | pbrook | DPRINTF("Data ready tag=0x%x len=%d\n", r->tag, r->buf_len);
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169 | a917d384 | pbrook | |
170 | a917d384 | pbrook | s->completion(s->opaque, SCSI_REASON_DATA, r->tag, r->buf_len); |
171 | 4d611c9a | pbrook | } |
172 | 4d611c9a | pbrook | |
173 | a917d384 | pbrook | /* Read more data from scsi device into buffer. */
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174 | 8ccc2ace | ths | static void scsi_read_data(SCSIDevice *d, uint32_t tag) |
175 | 2e5d83bb | pbrook | { |
176 | 8ccc2ace | ths | SCSIDeviceState *s = d->state; |
177 | a917d384 | pbrook | SCSIRequest *r; |
178 | 2e5d83bb | pbrook | uint32_t n; |
179 | 2e5d83bb | pbrook | |
180 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
181 | a917d384 | pbrook | if (!r) {
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182 | a917d384 | pbrook | BADF("Bad read tag 0x%x\n", tag);
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183 | b1fa7164 | blueswir1 | /* ??? This is the wrong error. */
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184 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_HARDWARE_ERROR); |
185 | a917d384 | pbrook | return;
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186 | 2e5d83bb | pbrook | } |
187 | a917d384 | pbrook | if (r->sector_count == (uint32_t)-1) { |
188 | a917d384 | pbrook | DPRINTF("Read buf_len=%d\n", r->buf_len);
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189 | a917d384 | pbrook | r->sector_count = 0;
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190 | a917d384 | pbrook | s->completion(s->opaque, SCSI_REASON_DATA, r->tag, r->buf_len); |
191 | a917d384 | pbrook | return;
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192 | 2e5d83bb | pbrook | } |
193 | a917d384 | pbrook | DPRINTF("Read sector_count=%d\n", r->sector_count);
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194 | a917d384 | pbrook | if (r->sector_count == 0) { |
195 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_GOOD, SENSE_NO_SENSE); |
196 | a917d384 | pbrook | return;
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197 | 2e5d83bb | pbrook | } |
198 | 2e5d83bb | pbrook | |
199 | a917d384 | pbrook | n = r->sector_count; |
200 | a917d384 | pbrook | if (n > SCSI_DMA_BUF_SIZE / 512) |
201 | a917d384 | pbrook | n = SCSI_DMA_BUF_SIZE / 512;
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202 | a917d384 | pbrook | |
203 | a917d384 | pbrook | r->buf_len = n * 512;
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204 | a917d384 | pbrook | r->aiocb = bdrv_aio_read(s->bdrv, r->sector, r->dma_buf, n, |
205 | a917d384 | pbrook | scsi_read_complete, r); |
206 | a917d384 | pbrook | if (r->aiocb == NULL) |
207 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_HARDWARE_ERROR); |
208 | a917d384 | pbrook | r->sector += n; |
209 | a917d384 | pbrook | r->sector_count -= n; |
210 | 2e5d83bb | pbrook | } |
211 | 2e5d83bb | pbrook | |
212 | 4d611c9a | pbrook | static void scsi_write_complete(void * opaque, int ret) |
213 | 4d611c9a | pbrook | { |
214 | a917d384 | pbrook | SCSIRequest *r = (SCSIRequest *)opaque; |
215 | 8ccc2ace | ths | SCSIDeviceState *s = r->dev; |
216 | a917d384 | pbrook | uint32_t len; |
217 | 4d611c9a | pbrook | |
218 | 4d611c9a | pbrook | if (ret) {
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219 | 4d611c9a | pbrook | fprintf(stderr, "scsi-disc: IO write error\n");
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220 | 4d611c9a | pbrook | exit(1);
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221 | 4d611c9a | pbrook | } |
222 | 4d611c9a | pbrook | |
223 | a917d384 | pbrook | r->aiocb = NULL;
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224 | a917d384 | pbrook | if (r->sector_count == 0) { |
225 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_GOOD, SENSE_NO_SENSE); |
226 | a917d384 | pbrook | } else {
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227 | a917d384 | pbrook | len = r->sector_count * 512;
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228 | a917d384 | pbrook | if (len > SCSI_DMA_BUF_SIZE) {
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229 | a917d384 | pbrook | len = SCSI_DMA_BUF_SIZE; |
230 | a917d384 | pbrook | } |
231 | a917d384 | pbrook | r->buf_len = len; |
232 | a917d384 | pbrook | DPRINTF("Write complete tag=0x%x more=%d\n", r->tag, len);
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233 | a917d384 | pbrook | s->completion(s->opaque, SCSI_REASON_DATA, r->tag, len); |
234 | 4d611c9a | pbrook | } |
235 | 4d611c9a | pbrook | } |
236 | 4d611c9a | pbrook | |
237 | 4d611c9a | pbrook | /* Write data to a scsi device. Returns nonzero on failure.
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238 | 4d611c9a | pbrook | The transfer may complete asynchronously. */
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239 | 8ccc2ace | ths | static int scsi_write_data(SCSIDevice *d, uint32_t tag) |
240 | 2e5d83bb | pbrook | { |
241 | 8ccc2ace | ths | SCSIDeviceState *s = d->state; |
242 | a917d384 | pbrook | SCSIRequest *r; |
243 | 2e5d83bb | pbrook | uint32_t n; |
244 | 2e5d83bb | pbrook | |
245 | a917d384 | pbrook | DPRINTF("Write data tag=0x%x\n", tag);
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246 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
247 | a917d384 | pbrook | if (!r) {
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248 | a917d384 | pbrook | BADF("Bad write tag 0x%x\n", tag);
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249 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_HARDWARE_ERROR); |
250 | 2e5d83bb | pbrook | return 1; |
251 | 2e5d83bb | pbrook | } |
252 | a917d384 | pbrook | if (r->aiocb)
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253 | a917d384 | pbrook | BADF("Data transfer already in progress\n");
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254 | a917d384 | pbrook | n = r->buf_len / 512;
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255 | a917d384 | pbrook | if (n) {
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256 | a917d384 | pbrook | r->aiocb = bdrv_aio_write(s->bdrv, r->sector, r->dma_buf, n, |
257 | a917d384 | pbrook | scsi_write_complete, r); |
258 | a917d384 | pbrook | if (r->aiocb == NULL) |
259 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, |
260 | 22864256 | blueswir1 | SENSE_HARDWARE_ERROR); |
261 | a917d384 | pbrook | r->sector += n; |
262 | a917d384 | pbrook | r->sector_count -= n; |
263 | a917d384 | pbrook | } else {
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264 | a917d384 | pbrook | /* Invoke completion routine to fetch data from host. */
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265 | a917d384 | pbrook | scsi_write_complete(r, 0);
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266 | 2e5d83bb | pbrook | } |
267 | 2e5d83bb | pbrook | |
268 | a917d384 | pbrook | return 0; |
269 | a917d384 | pbrook | } |
270 | 2e5d83bb | pbrook | |
271 | a917d384 | pbrook | /* Return a pointer to the data buffer. */
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272 | 8ccc2ace | ths | static uint8_t *scsi_get_buf(SCSIDevice *d, uint32_t tag)
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273 | a917d384 | pbrook | { |
274 | 8ccc2ace | ths | SCSIDeviceState *s = d->state; |
275 | a917d384 | pbrook | SCSIRequest *r; |
276 | 2e5d83bb | pbrook | |
277 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
278 | a917d384 | pbrook | if (!r) {
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279 | a917d384 | pbrook | BADF("Bad buffer tag 0x%x\n", tag);
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280 | a917d384 | pbrook | return NULL; |
281 | 4d611c9a | pbrook | } |
282 | a917d384 | pbrook | return r->dma_buf;
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283 | 2e5d83bb | pbrook | } |
284 | 2e5d83bb | pbrook | |
285 | 2e5d83bb | pbrook | /* Execute a scsi command. Returns the length of the data expected by the
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286 | 2e5d83bb | pbrook | command. This will be Positive for data transfers from the device
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287 | 2e5d83bb | pbrook | (eg. disk reads), negative for transfers to the device (eg. disk writes),
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288 | 2e5d83bb | pbrook | and zero if the command does not transfer any data. */
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289 | 2e5d83bb | pbrook | |
290 | 8ccc2ace | ths | static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag,
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291 | 8ccc2ace | ths | uint8_t *buf, int lun)
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292 | 2e5d83bb | pbrook | { |
293 | 8ccc2ace | ths | SCSIDeviceState *s = d->state; |
294 | 96b8f136 | ths | uint64_t nb_sectors; |
295 | 2e5d83bb | pbrook | uint32_t lba; |
296 | 2e5d83bb | pbrook | uint32_t len; |
297 | 2e5d83bb | pbrook | int cmdlen;
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298 | 2e5d83bb | pbrook | int is_write;
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299 | a917d384 | pbrook | uint8_t command; |
300 | a917d384 | pbrook | uint8_t *outbuf; |
301 | a917d384 | pbrook | SCSIRequest *r; |
302 | a917d384 | pbrook | |
303 | a917d384 | pbrook | command = buf[0];
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304 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
305 | a917d384 | pbrook | if (r) {
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306 | a917d384 | pbrook | BADF("Tag 0x%x already in use\n", tag);
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307 | 8ccc2ace | ths | scsi_cancel_io(d, tag); |
308 | a917d384 | pbrook | } |
309 | a917d384 | pbrook | /* ??? Tags are not unique for different luns. We only implement a
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310 | a917d384 | pbrook | single lun, so this should not matter. */
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311 | a917d384 | pbrook | r = scsi_new_request(s, tag); |
312 | a917d384 | pbrook | outbuf = r->dma_buf; |
313 | 2e5d83bb | pbrook | is_write = 0;
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314 | a917d384 | pbrook | DPRINTF("Command: lun=%d tag=0x%x data=0x%02x", lun, tag, buf[0]); |
315 | a917d384 | pbrook | switch (command >> 5) { |
316 | 2e5d83bb | pbrook | case 0: |
317 | 2e5d83bb | pbrook | lba = buf[3] | (buf[2] << 8) | ((buf[1] & 0x1f) << 16); |
318 | 2e5d83bb | pbrook | len = buf[4];
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319 | 2e5d83bb | pbrook | cmdlen = 6;
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320 | 2e5d83bb | pbrook | break;
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321 | 2e5d83bb | pbrook | case 1: |
322 | 2e5d83bb | pbrook | case 2: |
323 | 2e5d83bb | pbrook | lba = buf[5] | (buf[4] << 8) | (buf[3] << 16) | (buf[2] << 24); |
324 | 2e5d83bb | pbrook | len = buf[8] | (buf[7] << 8); |
325 | 2e5d83bb | pbrook | cmdlen = 10;
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326 | 2e5d83bb | pbrook | break;
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327 | 2e5d83bb | pbrook | case 4: |
328 | 2e5d83bb | pbrook | lba = buf[5] | (buf[4] << 8) | (buf[3] << 16) | (buf[2] << 24); |
329 | 2e5d83bb | pbrook | len = buf[13] | (buf[12] << 8) | (buf[11] << 16) | (buf[10] << 24); |
330 | 2e5d83bb | pbrook | cmdlen = 16;
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331 | 2e5d83bb | pbrook | break;
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332 | 2e5d83bb | pbrook | case 5: |
333 | 2e5d83bb | pbrook | lba = buf[5] | (buf[4] << 8) | (buf[3] << 16) | (buf[2] << 24); |
334 | 2e5d83bb | pbrook | len = buf[9] | (buf[8] << 8) | (buf[7] << 16) | (buf[6] << 24); |
335 | 2e5d83bb | pbrook | cmdlen = 12;
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336 | 2e5d83bb | pbrook | break;
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337 | 2e5d83bb | pbrook | default:
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338 | a917d384 | pbrook | BADF("Unsupported command length, command %x\n", command);
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339 | 2e5d83bb | pbrook | goto fail;
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340 | 2e5d83bb | pbrook | } |
341 | 2e5d83bb | pbrook | #ifdef DEBUG_SCSI
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342 | 2e5d83bb | pbrook | { |
343 | 2e5d83bb | pbrook | int i;
|
344 | 2e5d83bb | pbrook | for (i = 1; i < cmdlen; i++) { |
345 | 2e5d83bb | pbrook | printf(" 0x%02x", buf[i]);
|
346 | 2e5d83bb | pbrook | } |
347 | 2e5d83bb | pbrook | printf("\n");
|
348 | 2e5d83bb | pbrook | } |
349 | 2e5d83bb | pbrook | #endif
|
350 | 0fc5c15a | pbrook | if (lun || buf[1] >> 5) { |
351 | 2e5d83bb | pbrook | /* Only LUN 0 supported. */
|
352 | 0fc5c15a | pbrook | DPRINTF("Unimplemented LUN %d\n", lun ? lun : buf[1] >> 5); |
353 | 22864256 | blueswir1 | if (command != 0x03 && command != 0x12) /* REQUEST SENSE and INQUIRY */ |
354 | 22864256 | blueswir1 | goto fail;
|
355 | 2e5d83bb | pbrook | } |
356 | a917d384 | pbrook | switch (command) {
|
357 | 2e5d83bb | pbrook | case 0x0: |
358 | 2e5d83bb | pbrook | DPRINTF("Test Unit Ready\n");
|
359 | 2e5d83bb | pbrook | break;
|
360 | 2e5d83bb | pbrook | case 0x03: |
361 | 2e5d83bb | pbrook | DPRINTF("Request Sense (len %d)\n", len);
|
362 | 2e5d83bb | pbrook | if (len < 4) |
363 | 2e5d83bb | pbrook | goto fail;
|
364 | 67cd24a8 | ths | memset(outbuf, 0, 4); |
365 | a917d384 | pbrook | outbuf[0] = 0xf0; |
366 | a917d384 | pbrook | outbuf[1] = 0; |
367 | a917d384 | pbrook | outbuf[2] = s->sense;
|
368 | a917d384 | pbrook | r->buf_len = 4;
|
369 | 2e5d83bb | pbrook | break;
|
370 | 2e5d83bb | pbrook | case 0x12: |
371 | 7d8406be | pbrook | DPRINTF("Inquiry (len %d)\n", len);
|
372 | 1d4db89c | balrog | if (buf[1] & 0x2) { |
373 | 1d4db89c | balrog | /* Command support data - optional, not implemented */
|
374 | 1d4db89c | balrog | BADF("optional INQUIRY command support request not implemented\n");
|
375 | 1d4db89c | balrog | goto fail;
|
376 | 1d4db89c | balrog | } |
377 | 1d4db89c | balrog | else if (buf[1] & 0x1) { |
378 | 1d4db89c | balrog | /* Vital product data */
|
379 | 1d4db89c | balrog | uint8_t page_code = buf[2];
|
380 | 1d4db89c | balrog | if (len < 4) { |
381 | 1d4db89c | balrog | BADF("Error: Inquiry (EVPD[%02X]) buffer size %d is "
|
382 | 1d4db89c | balrog | "less than 4\n", page_code, len);
|
383 | 1d4db89c | balrog | goto fail;
|
384 | 1d4db89c | balrog | } |
385 | 1d4db89c | balrog | |
386 | 1d4db89c | balrog | switch (page_code) {
|
387 | 1d4db89c | balrog | case 0x00: |
388 | 1d4db89c | balrog | { |
389 | 1d4db89c | balrog | /* Supported page codes, mandatory */
|
390 | 1d4db89c | balrog | DPRINTF("Inquiry EVPD[Supported pages] "
|
391 | 1d4db89c | balrog | "buffer size %d\n", len);
|
392 | 1d4db89c | balrog | |
393 | 1d4db89c | balrog | r->buf_len = 0;
|
394 | 1d4db89c | balrog | |
395 | 1d4db89c | balrog | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
|
396 | 1d4db89c | balrog | outbuf[r->buf_len++] = 5;
|
397 | 1d4db89c | balrog | } else {
|
398 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0;
|
399 | 1d4db89c | balrog | } |
400 | 1d4db89c | balrog | |
401 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0x00; // this page |
402 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0x00;
|
403 | 1d4db89c | balrog | outbuf[r->buf_len++] = 3; // number of pages |
404 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0x00; // list of supported pages (this page) |
405 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0x80; // unit serial number |
406 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0x83; // device identification |
407 | 1d4db89c | balrog | } |
408 | 1d4db89c | balrog | break;
|
409 | 1d4db89c | balrog | case 0x80: |
410 | 1d4db89c | balrog | { |
411 | 1d4db89c | balrog | /* Device serial number, optional */
|
412 | 1d4db89c | balrog | if (len < 4) { |
413 | 1d4db89c | balrog | BADF("Error: EVPD[Serial number] Inquiry buffer "
|
414 | 1d4db89c | balrog | "size %d too small, %d needed\n", len, 4); |
415 | 1d4db89c | balrog | goto fail;
|
416 | 1d4db89c | balrog | } |
417 | 1d4db89c | balrog | |
418 | 1d4db89c | balrog | DPRINTF("Inquiry EVPD[Serial number] buffer size %d\n", len);
|
419 | 1d4db89c | balrog | |
420 | 1d4db89c | balrog | r->buf_len = 0;
|
421 | 1d4db89c | balrog | |
422 | 1d4db89c | balrog | /* Supported page codes */
|
423 | 1d4db89c | balrog | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
|
424 | 1d4db89c | balrog | outbuf[r->buf_len++] = 5;
|
425 | 1d4db89c | balrog | } else {
|
426 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0;
|
427 | 1d4db89c | balrog | } |
428 | 1d4db89c | balrog | |
429 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0x80; // this page |
430 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0x00;
|
431 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0x01; // 1 byte data follow |
432 | 1d4db89c | balrog | |
433 | 1d4db89c | balrog | outbuf[r->buf_len++] = '0'; // 1 byte data follow |
434 | 1d4db89c | balrog | } |
435 | 1d4db89c | balrog | |
436 | 1d4db89c | balrog | break;
|
437 | 1d4db89c | balrog | case 0x83: |
438 | 1d4db89c | balrog | { |
439 | 1d4db89c | balrog | /* Device identification page, mandatory */
|
440 | 1d4db89c | balrog | int max_len = 255 - 8; |
441 | 1d4db89c | balrog | int id_len = strlen(bdrv_get_device_name(s->bdrv));
|
442 | 1d4db89c | balrog | if (id_len > max_len)
|
443 | 1d4db89c | balrog | id_len = max_len; |
444 | 1d4db89c | balrog | |
445 | 1d4db89c | balrog | DPRINTF("Inquiry EVPD[Device identification] "
|
446 | 1d4db89c | balrog | "buffer size %d\n", len);
|
447 | 1d4db89c | balrog | r->buf_len = 0;
|
448 | 1d4db89c | balrog | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
|
449 | 1d4db89c | balrog | outbuf[r->buf_len++] = 5;
|
450 | 1d4db89c | balrog | } else {
|
451 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0;
|
452 | 1d4db89c | balrog | } |
453 | 1d4db89c | balrog | |
454 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0x83; // this page |
455 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0x00;
|
456 | 1d4db89c | balrog | outbuf[r->buf_len++] = 3 + id_len;
|
457 | 1d4db89c | balrog | |
458 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0x2; // ASCII |
459 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0; // not officially assigned |
460 | 1d4db89c | balrog | outbuf[r->buf_len++] = 0; // reserved |
461 | 1d4db89c | balrog | outbuf[r->buf_len++] = id_len; // length of data following
|
462 | 1d4db89c | balrog | |
463 | 1d4db89c | balrog | memcpy(&outbuf[r->buf_len], |
464 | 1d4db89c | balrog | bdrv_get_device_name(s->bdrv), id_len); |
465 | 1d4db89c | balrog | r->buf_len += id_len; |
466 | 1d4db89c | balrog | } |
467 | 1d4db89c | balrog | break;
|
468 | 1d4db89c | balrog | default:
|
469 | 1d4db89c | balrog | BADF("Error: unsupported Inquiry (EVPD[%02X]) "
|
470 | 1d4db89c | balrog | "buffer size %d\n", page_code, len);
|
471 | 1d4db89c | balrog | goto fail;
|
472 | 1d4db89c | balrog | } |
473 | 1d4db89c | balrog | /* done with EVPD */
|
474 | 1d4db89c | balrog | break;
|
475 | 1d4db89c | balrog | } |
476 | 1d4db89c | balrog | else {
|
477 | 1d4db89c | balrog | /* Standard INQUIRY data */
|
478 | 1d4db89c | balrog | if (buf[2] != 0) { |
479 | 1d4db89c | balrog | BADF("Error: Inquiry (STANDARD) page or code "
|
480 | 1d4db89c | balrog | "is non-zero [%02X]\n", buf[2]); |
481 | 1d4db89c | balrog | goto fail;
|
482 | 1d4db89c | balrog | } |
483 | 1d4db89c | balrog | |
484 | 1d4db89c | balrog | /* PAGE CODE == 0 */
|
485 | 1d4db89c | balrog | if (len < 5) { |
486 | 1d4db89c | balrog | BADF("Error: Inquiry (STANDARD) buffer size %d "
|
487 | 1d4db89c | balrog | "is less than 5\n", len);
|
488 | 1d4db89c | balrog | goto fail;
|
489 | 1d4db89c | balrog | } |
490 | 1d4db89c | balrog | |
491 | 1d4db89c | balrog | if (len < 36) { |
492 | 1d4db89c | balrog | BADF("Error: Inquiry (STANDARD) buffer size %d "
|
493 | 1d4db89c | balrog | "is less than 36 (TODO: only 5 required)\n", len);
|
494 | 1d4db89c | balrog | } |
495 | 2e5d83bb | pbrook | } |
496 | 57575058 | balrog | |
497 | 57575058 | balrog | if(len > SCSI_MAX_INQUIRY_LEN)
|
498 | 57575058 | balrog | len = SCSI_MAX_INQUIRY_LEN; |
499 | 57575058 | balrog | |
500 | 57575058 | balrog | memset(outbuf, 0, len);
|
501 | 22864256 | blueswir1 | |
502 | 22864256 | blueswir1 | if (lun || buf[1] >> 5) { |
503 | 22864256 | blueswir1 | outbuf[0] = 0x7f; /* LUN not supported */ |
504 | 22864256 | blueswir1 | } else if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) { |
505 | a917d384 | pbrook | outbuf[0] = 5; |
506 | a917d384 | pbrook | outbuf[1] = 0x80; |
507 | a917d384 | pbrook | memcpy(&outbuf[16], "QEMU CD-ROM ", 16); |
508 | 2e5d83bb | pbrook | } else {
|
509 | a917d384 | pbrook | outbuf[0] = 0; |
510 | a917d384 | pbrook | memcpy(&outbuf[16], "QEMU HARDDISK ", 16); |
511 | 2e5d83bb | pbrook | } |
512 | a917d384 | pbrook | memcpy(&outbuf[8], "QEMU ", 8); |
513 | a917d384 | pbrook | memcpy(&outbuf[32], QEMU_VERSION, 4); |
514 | 17acfe32 | pbrook | /* Identify device as SCSI-3 rev 1.
|
515 | 17acfe32 | pbrook | Some later commands are also implemented. */
|
516 | a917d384 | pbrook | outbuf[2] = 3; |
517 | a917d384 | pbrook | outbuf[3] = 2; /* Format 2 */ |
518 | 57575058 | balrog | outbuf[4] = len - 5; /* Additional Length = (Len - 1) - 4 */ |
519 | a917d384 | pbrook | /* Sync data transfer and TCQ. */
|
520 | a917d384 | pbrook | outbuf[7] = 0x10 | (s->tcq ? 0x02 : 0); |
521 | 57575058 | balrog | r->buf_len = len; |
522 | 2e5d83bb | pbrook | break;
|
523 | 2e5d83bb | pbrook | case 0x16: |
524 | 2e5d83bb | pbrook | DPRINTF("Reserve(6)\n");
|
525 | 2e5d83bb | pbrook | if (buf[1] & 1) |
526 | 2e5d83bb | pbrook | goto fail;
|
527 | 2e5d83bb | pbrook | break;
|
528 | 2e5d83bb | pbrook | case 0x17: |
529 | 2e5d83bb | pbrook | DPRINTF("Release(6)\n");
|
530 | 2e5d83bb | pbrook | if (buf[1] & 1) |
531 | 2e5d83bb | pbrook | goto fail;
|
532 | 2e5d83bb | pbrook | break;
|
533 | 2e5d83bb | pbrook | case 0x1a: |
534 | 7d8406be | pbrook | case 0x5a: |
535 | 17acfe32 | pbrook | { |
536 | a917d384 | pbrook | uint8_t *p; |
537 | 17acfe32 | pbrook | int page;
|
538 | 17acfe32 | pbrook | |
539 | 17acfe32 | pbrook | page = buf[2] & 0x3f; |
540 | 17acfe32 | pbrook | DPRINTF("Mode Sense (page %d, len %d)\n", page, len);
|
541 | a917d384 | pbrook | p = outbuf; |
542 | 17acfe32 | pbrook | memset(p, 0, 4); |
543 | a917d384 | pbrook | outbuf[1] = 0; /* Default media type. */ |
544 | a917d384 | pbrook | outbuf[3] = 0; /* Block descriptor length. */ |
545 | 17acfe32 | pbrook | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
|
546 | a917d384 | pbrook | outbuf[2] = 0x80; /* Readonly. */ |
547 | 17acfe32 | pbrook | } |
548 | 17acfe32 | pbrook | p += 4;
|
549 | 5e65a310 | blueswir1 | if (page == 4) { |
550 | 5e65a310 | blueswir1 | int cylinders, heads, secs;
|
551 | 5e65a310 | blueswir1 | |
552 | 5e65a310 | blueswir1 | /* Rigid disk device geometry page. */
|
553 | 5e65a310 | blueswir1 | p[0] = 4; |
554 | 5e65a310 | blueswir1 | p[1] = 0x16; |
555 | 5e65a310 | blueswir1 | /* if a geometry hint is available, use it */
|
556 | 5e65a310 | blueswir1 | bdrv_get_geometry_hint(s->bdrv, &cylinders, &heads, &secs); |
557 | 5e65a310 | blueswir1 | p[2] = (cylinders >> 16) & 0xff; |
558 | 5e65a310 | blueswir1 | p[3] = (cylinders >> 8) & 0xff; |
559 | 5e65a310 | blueswir1 | p[4] = cylinders & 0xff; |
560 | 5e65a310 | blueswir1 | p[5] = heads & 0xff; |
561 | 5e65a310 | blueswir1 | /* Write precomp start cylinder, disabled */
|
562 | 5e65a310 | blueswir1 | p[6] = (cylinders >> 16) & 0xff; |
563 | 5e65a310 | blueswir1 | p[7] = (cylinders >> 8) & 0xff; |
564 | 5e65a310 | blueswir1 | p[8] = cylinders & 0xff; |
565 | 5e65a310 | blueswir1 | /* Reduced current start cylinder, disabled */
|
566 | 5e65a310 | blueswir1 | p[9] = (cylinders >> 16) & 0xff; |
567 | 5e65a310 | blueswir1 | p[10] = (cylinders >> 8) & 0xff; |
568 | 5e65a310 | blueswir1 | p[11] = cylinders & 0xff; |
569 | 5e65a310 | blueswir1 | /* Device step rate [ns], 200ns */
|
570 | 5e65a310 | blueswir1 | p[12] = 0; |
571 | 5e65a310 | blueswir1 | p[13] = 200; |
572 | 5e65a310 | blueswir1 | /* Landing zone cylinder */
|
573 | 5e65a310 | blueswir1 | p[14] = 0xff; |
574 | 5e65a310 | blueswir1 | p[15] = 0xff; |
575 | 5e65a310 | blueswir1 | p[16] = 0xff; |
576 | 5e65a310 | blueswir1 | /* Medium rotation rate [rpm], 5400 rpm */
|
577 | 5e65a310 | blueswir1 | p[20] = (5400 >> 8) & 0xff; |
578 | 5e65a310 | blueswir1 | p[21] = 5400 & 0xff; |
579 | 5e65a310 | blueswir1 | p += 0x16;
|
580 | 5e65a310 | blueswir1 | } else if (page == 5) { |
581 | 5e65a310 | blueswir1 | int cylinders, heads, secs;
|
582 | 5e65a310 | blueswir1 | |
583 | 5e65a310 | blueswir1 | /* Flexible disk device geometry page. */
|
584 | 5e65a310 | blueswir1 | p[0] = 5; |
585 | 5e65a310 | blueswir1 | p[1] = 0x1e; |
586 | 5e65a310 | blueswir1 | /* Transfer rate [kbit/s], 5Mbit/s */
|
587 | 5e65a310 | blueswir1 | p[2] = 5000 >> 8; |
588 | 5e65a310 | blueswir1 | p[3] = 5000 & 0xff; |
589 | 5e65a310 | blueswir1 | /* if a geometry hint is available, use it */
|
590 | 5e65a310 | blueswir1 | bdrv_get_geometry_hint(s->bdrv, &cylinders, &heads, &secs); |
591 | 5e65a310 | blueswir1 | p[4] = heads & 0xff; |
592 | 5e65a310 | blueswir1 | p[5] = secs & 0xff; |
593 | 5e65a310 | blueswir1 | p[6] = s->cluster_size * 2; |
594 | 5e65a310 | blueswir1 | p[8] = (cylinders >> 8) & 0xff; |
595 | 5e65a310 | blueswir1 | p[9] = cylinders & 0xff; |
596 | 5e65a310 | blueswir1 | /* Write precomp start cylinder, disabled */
|
597 | 5e65a310 | blueswir1 | p[10] = (cylinders >> 8) & 0xff; |
598 | 5e65a310 | blueswir1 | p[11] = cylinders & 0xff; |
599 | 5e65a310 | blueswir1 | /* Reduced current start cylinder, disabled */
|
600 | 5e65a310 | blueswir1 | p[12] = (cylinders >> 8) & 0xff; |
601 | 5e65a310 | blueswir1 | p[13] = cylinders & 0xff; |
602 | 5e65a310 | blueswir1 | /* Device step rate [100us], 100us */
|
603 | 5e65a310 | blueswir1 | p[14] = 0; |
604 | 5e65a310 | blueswir1 | p[15] = 1; |
605 | 5e65a310 | blueswir1 | /* Device step pulse width [us], 1us */
|
606 | 5e65a310 | blueswir1 | p[16] = 1; |
607 | 5e65a310 | blueswir1 | /* Device head settle delay [100us], 100us */
|
608 | 5e65a310 | blueswir1 | p[17] = 0; |
609 | 5e65a310 | blueswir1 | p[18] = 1; |
610 | 5e65a310 | blueswir1 | /* Motor on delay [0.1s], 0.1s */
|
611 | 5e65a310 | blueswir1 | p[19] = 1; |
612 | 5e65a310 | blueswir1 | /* Motor off delay [0.1s], 0.1s */
|
613 | 5e65a310 | blueswir1 | p[20] = 1; |
614 | 5e65a310 | blueswir1 | /* Medium rotation rate [rpm], 5400 rpm */
|
615 | 5e65a310 | blueswir1 | p[28] = (5400 >> 8) & 0xff; |
616 | 5e65a310 | blueswir1 | p[29] = 5400 & 0xff; |
617 | 5e65a310 | blueswir1 | p += 0x1e;
|
618 | 5e65a310 | blueswir1 | } else if ((page == 8 || page == 0x3f)) { |
619 | 17acfe32 | pbrook | /* Caching page. */
|
620 | 67cd24a8 | ths | memset(p,0,20); |
621 | 17acfe32 | pbrook | p[0] = 8; |
622 | 17acfe32 | pbrook | p[1] = 0x12; |
623 | 17acfe32 | pbrook | p[2] = 4; /* WCE */ |
624 | 67cd24a8 | ths | p += 20;
|
625 | 17acfe32 | pbrook | } |
626 | 17acfe32 | pbrook | if ((page == 0x3f || page == 0x2a) |
627 | 17acfe32 | pbrook | && (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM)) { |
628 | 17acfe32 | pbrook | /* CD Capabilities and Mechanical Status page. */
|
629 | 17acfe32 | pbrook | p[0] = 0x2a; |
630 | 17acfe32 | pbrook | p[1] = 0x14; |
631 | 17acfe32 | pbrook | p[2] = 3; // CD-R & CD-RW read |
632 | 17acfe32 | pbrook | p[3] = 0; // Writing not supported |
633 | 17acfe32 | pbrook | p[4] = 0x7f; /* Audio, composite, digital out, |
634 | 17acfe32 | pbrook | mode 2 form 1&2, multi session */
|
635 | 17acfe32 | pbrook | p[5] = 0xff; /* CD DA, DA accurate, RW supported, |
636 | 17acfe32 | pbrook | RW corrected, C2 errors, ISRC,
|
637 | 17acfe32 | pbrook | UPC, Bar code */
|
638 | 17acfe32 | pbrook | p[6] = 0x2d | (bdrv_is_locked(s->bdrv)? 2 : 0); |
639 | 17acfe32 | pbrook | /* Locking supported, jumper present, eject, tray */
|
640 | 17acfe32 | pbrook | p[7] = 0; /* no volume & mute control, no |
641 | 17acfe32 | pbrook | changer */
|
642 | 17acfe32 | pbrook | p[8] = (50 * 176) >> 8; // 50x read speed |
643 | 17acfe32 | pbrook | p[9] = (50 * 176) & 0xff; |
644 | 17acfe32 | pbrook | p[10] = 0 >> 8; // No volume |
645 | 17acfe32 | pbrook | p[11] = 0 & 0xff; |
646 | 17acfe32 | pbrook | p[12] = 2048 >> 8; // 2M buffer |
647 | 17acfe32 | pbrook | p[13] = 2048 & 0xff; |
648 | 17acfe32 | pbrook | p[14] = (16 * 176) >> 8; // 16x read speed current |
649 | 17acfe32 | pbrook | p[15] = (16 * 176) & 0xff; |
650 | 17acfe32 | pbrook | p[18] = (16 * 176) >> 8; // 16x write speed |
651 | 17acfe32 | pbrook | p[19] = (16 * 176) & 0xff; |
652 | 17acfe32 | pbrook | p[20] = (16 * 176) >> 8; // 16x write speed current |
653 | 17acfe32 | pbrook | p[21] = (16 * 176) & 0xff; |
654 | 67cd24a8 | ths | p += 22;
|
655 | 17acfe32 | pbrook | } |
656 | a917d384 | pbrook | r->buf_len = p - outbuf; |
657 | a917d384 | pbrook | outbuf[0] = r->buf_len - 4; |
658 | a917d384 | pbrook | if (r->buf_len > len)
|
659 | a917d384 | pbrook | r->buf_len = len; |
660 | 7d8406be | pbrook | } |
661 | 17acfe32 | pbrook | break;
|
662 | 17acfe32 | pbrook | case 0x1b: |
663 | 17acfe32 | pbrook | DPRINTF("Start Stop Unit\n");
|
664 | 17acfe32 | pbrook | break;
|
665 | 17acfe32 | pbrook | case 0x1e: |
666 | 17acfe32 | pbrook | DPRINTF("Prevent Allow Medium Removal (prevent = %d)\n", buf[4] & 3); |
667 | 17acfe32 | pbrook | bdrv_set_locked(s->bdrv, buf[4] & 1); |
668 | 2e5d83bb | pbrook | break;
|
669 | 2e5d83bb | pbrook | case 0x25: |
670 | 2e5d83bb | pbrook | DPRINTF("Read Capacity\n");
|
671 | 2e5d83bb | pbrook | /* The normal LEN field for this command is zero. */
|
672 | a917d384 | pbrook | memset(outbuf, 0, 8); |
673 | 2e5d83bb | pbrook | bdrv_get_geometry(s->bdrv, &nb_sectors); |
674 | 51c1ebb1 | pbrook | /* Returned value is the address of the last sector. */
|
675 | 51c1ebb1 | pbrook | if (nb_sectors) {
|
676 | 51c1ebb1 | pbrook | nb_sectors--; |
677 | a917d384 | pbrook | outbuf[0] = (nb_sectors >> 24) & 0xff; |
678 | a917d384 | pbrook | outbuf[1] = (nb_sectors >> 16) & 0xff; |
679 | a917d384 | pbrook | outbuf[2] = (nb_sectors >> 8) & 0xff; |
680 | a917d384 | pbrook | outbuf[3] = nb_sectors & 0xff; |
681 | a917d384 | pbrook | outbuf[4] = 0; |
682 | a917d384 | pbrook | outbuf[5] = 0; |
683 | a917d384 | pbrook | outbuf[6] = s->cluster_size * 2; |
684 | a917d384 | pbrook | outbuf[7] = 0; |
685 | a917d384 | pbrook | r->buf_len = 8;
|
686 | 51c1ebb1 | pbrook | } else {
|
687 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_NOT_READY); |
688 | 35f1df84 | pbrook | return 0; |
689 | 51c1ebb1 | pbrook | } |
690 | 2e5d83bb | pbrook | break;
|
691 | 2e5d83bb | pbrook | case 0x08: |
692 | 2e5d83bb | pbrook | case 0x28: |
693 | 2e5d83bb | pbrook | DPRINTF("Read (sector %d, count %d)\n", lba, len);
|
694 | a917d384 | pbrook | r->sector = lba * s->cluster_size; |
695 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
696 | 2e5d83bb | pbrook | break;
|
697 | 2e5d83bb | pbrook | case 0x0a: |
698 | 2e5d83bb | pbrook | case 0x2a: |
699 | 2e5d83bb | pbrook | DPRINTF("Write (sector %d, count %d)\n", lba, len);
|
700 | a917d384 | pbrook | r->sector = lba * s->cluster_size; |
701 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
702 | 2e5d83bb | pbrook | is_write = 1;
|
703 | 2e5d83bb | pbrook | break;
|
704 | 7d8406be | pbrook | case 0x35: |
705 | e91c8a77 | ths | DPRINTF("Synchronise cache (sector %d, count %d)\n", lba, len);
|
706 | 7a6cba61 | pbrook | bdrv_flush(s->bdrv); |
707 | 7d8406be | pbrook | break;
|
708 | 2e5d83bb | pbrook | case 0x43: |
709 | 2e5d83bb | pbrook | { |
710 | 7c22dd52 | pbrook | int start_track, format, msf, toclen;
|
711 | 2e5d83bb | pbrook | |
712 | 2e5d83bb | pbrook | msf = buf[1] & 2; |
713 | 2e5d83bb | pbrook | format = buf[2] & 0xf; |
714 | 2e5d83bb | pbrook | start_track = buf[6];
|
715 | 2e5d83bb | pbrook | bdrv_get_geometry(s->bdrv, &nb_sectors); |
716 | 2e5d83bb | pbrook | DPRINTF("Read TOC (track %d format %d msf %d)\n", start_track, format, msf >> 1); |
717 | 2e5d83bb | pbrook | switch(format) {
|
718 | 2e5d83bb | pbrook | case 0: |
719 | a917d384 | pbrook | toclen = cdrom_read_toc(nb_sectors, outbuf, msf, start_track); |
720 | 2e5d83bb | pbrook | break;
|
721 | 2e5d83bb | pbrook | case 1: |
722 | 2e5d83bb | pbrook | /* multi session : only a single session defined */
|
723 | 7c22dd52 | pbrook | toclen = 12;
|
724 | a917d384 | pbrook | memset(outbuf, 0, 12); |
725 | a917d384 | pbrook | outbuf[1] = 0x0a; |
726 | a917d384 | pbrook | outbuf[2] = 0x01; |
727 | a917d384 | pbrook | outbuf[3] = 0x01; |
728 | 2e5d83bb | pbrook | break;
|
729 | 2e5d83bb | pbrook | case 2: |
730 | a917d384 | pbrook | toclen = cdrom_read_toc_raw(nb_sectors, outbuf, msf, start_track); |
731 | 2e5d83bb | pbrook | break;
|
732 | 2e5d83bb | pbrook | default:
|
733 | 7c22dd52 | pbrook | goto error_cmd;
|
734 | 7c22dd52 | pbrook | } |
735 | 7c22dd52 | pbrook | if (toclen > 0) { |
736 | 7c22dd52 | pbrook | if (len > toclen)
|
737 | 7c22dd52 | pbrook | len = toclen; |
738 | a917d384 | pbrook | r->buf_len = len; |
739 | 7c22dd52 | pbrook | break;
|
740 | 2e5d83bb | pbrook | } |
741 | 7c22dd52 | pbrook | error_cmd:
|
742 | 7c22dd52 | pbrook | DPRINTF("Read TOC error\n");
|
743 | 7c22dd52 | pbrook | goto fail;
|
744 | 2e5d83bb | pbrook | } |
745 | 17acfe32 | pbrook | case 0x46: |
746 | 17acfe32 | pbrook | DPRINTF("Get Configuration (rt %d, maxlen %d)\n", buf[1] & 3, len); |
747 | a917d384 | pbrook | memset(outbuf, 0, 8); |
748 | 1235fc06 | ths | /* ??? This should probably return much more information. For now
|
749 | 17acfe32 | pbrook | just return the basic header indicating the CD-ROM profile. */
|
750 | a917d384 | pbrook | outbuf[7] = 8; // CD-ROM |
751 | a917d384 | pbrook | r->buf_len = 8;
|
752 | 17acfe32 | pbrook | break;
|
753 | 2e5d83bb | pbrook | case 0x56: |
754 | 2e5d83bb | pbrook | DPRINTF("Reserve(10)\n");
|
755 | 2e5d83bb | pbrook | if (buf[1] & 3) |
756 | 2e5d83bb | pbrook | goto fail;
|
757 | 2e5d83bb | pbrook | break;
|
758 | 2e5d83bb | pbrook | case 0x57: |
759 | 2e5d83bb | pbrook | DPRINTF("Release(10)\n");
|
760 | 2e5d83bb | pbrook | if (buf[1] & 3) |
761 | 2e5d83bb | pbrook | goto fail;
|
762 | 2e5d83bb | pbrook | break;
|
763 | 2e5d83bb | pbrook | case 0xa0: |
764 | 2e5d83bb | pbrook | DPRINTF("Report LUNs (len %d)\n", len);
|
765 | 2e5d83bb | pbrook | if (len < 16) |
766 | 2e5d83bb | pbrook | goto fail;
|
767 | a917d384 | pbrook | memset(outbuf, 0, 16); |
768 | a917d384 | pbrook | outbuf[3] = 8; |
769 | a917d384 | pbrook | r->buf_len = 16;
|
770 | 2e5d83bb | pbrook | break;
|
771 | 22864256 | blueswir1 | case 0x2f: |
772 | 22864256 | blueswir1 | DPRINTF("Verify (sector %d, count %d)\n", lba, len);
|
773 | 22864256 | blueswir1 | break;
|
774 | 2e5d83bb | pbrook | default:
|
775 | 2e5d83bb | pbrook | DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]); |
776 | 2e5d83bb | pbrook | fail:
|
777 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_ILLEGAL_REQUEST); |
778 | 2e5d83bb | pbrook | return 0; |
779 | 2e5d83bb | pbrook | } |
780 | a917d384 | pbrook | if (r->sector_count == 0 && r->buf_len == 0) { |
781 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_GOOD, SENSE_NO_SENSE); |
782 | a917d384 | pbrook | } |
783 | a917d384 | pbrook | len = r->sector_count * 512 + r->buf_len;
|
784 | a917d384 | pbrook | if (is_write) {
|
785 | a917d384 | pbrook | return -len;
|
786 | a917d384 | pbrook | } else {
|
787 | a917d384 | pbrook | if (!r->sector_count)
|
788 | a917d384 | pbrook | r->sector_count = -1;
|
789 | a917d384 | pbrook | return len;
|
790 | 2e5d83bb | pbrook | } |
791 | 2e5d83bb | pbrook | } |
792 | 2e5d83bb | pbrook | |
793 | 8ccc2ace | ths | static void scsi_destroy(SCSIDevice *d) |
794 | 2e5d83bb | pbrook | { |
795 | 8ccc2ace | ths | qemu_free(d->state); |
796 | 8ccc2ace | ths | qemu_free(d); |
797 | 2e5d83bb | pbrook | } |
798 | 2e5d83bb | pbrook | |
799 | 8ccc2ace | ths | SCSIDevice *scsi_disk_init(BlockDriverState *bdrv, int tcq,
|
800 | 8ccc2ace | ths | scsi_completionfn completion, void *opaque)
|
801 | 2e5d83bb | pbrook | { |
802 | 8ccc2ace | ths | SCSIDevice *d; |
803 | 8ccc2ace | ths | SCSIDeviceState *s; |
804 | 2e5d83bb | pbrook | |
805 | 8ccc2ace | ths | s = (SCSIDeviceState *)qemu_mallocz(sizeof(SCSIDeviceState));
|
806 | 2e5d83bb | pbrook | s->bdrv = bdrv; |
807 | a917d384 | pbrook | s->tcq = tcq; |
808 | 2e5d83bb | pbrook | s->completion = completion; |
809 | 2e5d83bb | pbrook | s->opaque = opaque; |
810 | 2e5d83bb | pbrook | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
|
811 | 7c22dd52 | pbrook | s->cluster_size = 4;
|
812 | 2e5d83bb | pbrook | } else {
|
813 | 7c22dd52 | pbrook | s->cluster_size = 1;
|
814 | 2e5d83bb | pbrook | } |
815 | 2e5d83bb | pbrook | |
816 | 8ccc2ace | ths | d = (SCSIDevice *)qemu_mallocz(sizeof(SCSIDevice));
|
817 | 8ccc2ace | ths | d->state = s; |
818 | 8ccc2ace | ths | d->destroy = scsi_destroy; |
819 | 8ccc2ace | ths | d->send_command = scsi_send_command; |
820 | 8ccc2ace | ths | d->read_data = scsi_read_data; |
821 | 8ccc2ace | ths | d->write_data = scsi_write_data; |
822 | 8ccc2ace | ths | d->cancel_io = scsi_cancel_io; |
823 | 8ccc2ace | ths | d->get_buf = scsi_get_buf; |
824 | 2e5d83bb | pbrook | |
825 | 8ccc2ace | ths | return d;
|
826 | 8ccc2ace | ths | } |