root / hw / scsi-disk.c @ e3b42536
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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 | fa879c64 | aliguori | #include <qemu-common.h> |
17 | fa879c64 | aliguori | #include <sysemu.h> |
18 | 2e5d83bb | pbrook | //#define DEBUG_SCSI
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19 | 2e5d83bb | pbrook | |
20 | 2e5d83bb | pbrook | #ifdef DEBUG_SCSI
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21 | 001faf32 | Blue Swirl | #define DPRINTF(fmt, ...) \
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22 | 001faf32 | Blue Swirl | do { printf("scsi-disk: " fmt , ## __VA_ARGS__); } while (0) |
23 | 2e5d83bb | pbrook | #else
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24 | 001faf32 | Blue Swirl | #define DPRINTF(fmt, ...) do {} while(0) |
25 | 2e5d83bb | pbrook | #endif
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26 | 2e5d83bb | pbrook | |
27 | 001faf32 | Blue Swirl | #define BADF(fmt, ...) \
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28 | 001faf32 | Blue Swirl | do { fprintf(stderr, "scsi-disk: " fmt , ## __VA_ARGS__); } while (0) |
29 | 2e5d83bb | pbrook | |
30 | 87ecb68b | pbrook | #include "qemu-common.h" |
31 | 87ecb68b | pbrook | #include "block.h" |
32 | 87ecb68b | pbrook | #include "scsi-disk.h" |
33 | 2e5d83bb | pbrook | |
34 | 2e5d83bb | pbrook | #define SENSE_NO_SENSE 0 |
35 | 1aacf348 | pbrook | #define SENSE_NOT_READY 2 |
36 | 4d611c9a | pbrook | #define SENSE_HARDWARE_ERROR 4 |
37 | 2e5d83bb | pbrook | #define SENSE_ILLEGAL_REQUEST 5 |
38 | 2e5d83bb | pbrook | |
39 | 22864256 | blueswir1 | #define STATUS_GOOD 0 |
40 | 22864256 | blueswir1 | #define STATUS_CHECK_CONDITION 2 |
41 | 22864256 | blueswir1 | |
42 | f0f72ffe | aurel32 | #define SCSI_DMA_BUF_SIZE 131072 |
43 | 57575058 | balrog | #define SCSI_MAX_INQUIRY_LEN 256 |
44 | a917d384 | pbrook | |
45 | ea8a5d7f | aliguori | #define SCSI_REQ_STATUS_RETRY 0x01 |
46 | ea8a5d7f | aliguori | |
47 | a917d384 | pbrook | typedef struct SCSIRequest { |
48 | 8ccc2ace | ths | SCSIDeviceState *dev; |
49 | 2e5d83bb | pbrook | uint32_t tag; |
50 | e035b43d | aliguori | /* ??? We should probably keep track of whether the data transfer is
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51 | 2e5d83bb | pbrook | a read or a write. Currently we rely on the host getting it right. */
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52 | a917d384 | pbrook | /* Both sector and sector_count are in terms of qemu 512 byte blocks. */
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53 | e035b43d | aliguori | uint64_t sector; |
54 | e035b43d | aliguori | uint32_t sector_count; |
55 | c87c0672 | aliguori | struct iovec iov;
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56 | c87c0672 | aliguori | QEMUIOVector qiov; |
57 | 4d611c9a | pbrook | BlockDriverAIOCB *aiocb; |
58 | a917d384 | pbrook | struct SCSIRequest *next;
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59 | ea8a5d7f | aliguori | uint32_t status; |
60 | a917d384 | pbrook | } SCSIRequest; |
61 | a917d384 | pbrook | |
62 | 8ccc2ace | ths | struct SCSIDeviceState
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63 | a917d384 | pbrook | { |
64 | a917d384 | pbrook | BlockDriverState *bdrv; |
65 | a917d384 | pbrook | SCSIRequest *requests; |
66 | a917d384 | pbrook | /* The qemu block layer uses a fixed 512 byte sector size.
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67 | a917d384 | pbrook | This is the number of 512 byte blocks in a single scsi sector. */
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68 | a917d384 | pbrook | int cluster_size;
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69 | 274fb0e1 | aliguori | uint64_t max_lba; |
70 | a917d384 | pbrook | int sense;
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71 | a917d384 | pbrook | int tcq;
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72 | 4d611c9a | pbrook | /* Completion functions may be called from either scsi_{read,write}_data
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73 | 4d611c9a | pbrook | or from the AIO completion routines. */
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74 | 2e5d83bb | pbrook | scsi_completionfn completion; |
75 | 2e5d83bb | pbrook | void *opaque;
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76 | fa879c64 | aliguori | char drive_serial_str[21]; |
77 | 2e5d83bb | pbrook | }; |
78 | 2e5d83bb | pbrook | |
79 | a917d384 | pbrook | /* Global pool of SCSIRequest structures. */
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80 | a917d384 | pbrook | static SCSIRequest *free_requests = NULL; |
81 | a917d384 | pbrook | |
82 | 8ccc2ace | ths | static SCSIRequest *scsi_new_request(SCSIDeviceState *s, uint32_t tag)
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83 | 2e5d83bb | pbrook | { |
84 | a917d384 | pbrook | SCSIRequest *r; |
85 | a917d384 | pbrook | |
86 | a917d384 | pbrook | if (free_requests) {
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87 | a917d384 | pbrook | r = free_requests; |
88 | a917d384 | pbrook | free_requests = r->next; |
89 | a917d384 | pbrook | } else {
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90 | a917d384 | pbrook | r = qemu_malloc(sizeof(SCSIRequest));
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91 | c87c0672 | aliguori | r->iov.iov_base = qemu_memalign(512, SCSI_DMA_BUF_SIZE);
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92 | a917d384 | pbrook | } |
93 | a917d384 | pbrook | r->dev = s; |
94 | a917d384 | pbrook | r->tag = tag; |
95 | a917d384 | pbrook | r->sector_count = 0;
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96 | c87c0672 | aliguori | r->iov.iov_len = 0;
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97 | a917d384 | pbrook | r->aiocb = NULL;
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98 | ea8a5d7f | aliguori | r->status = 0;
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99 | a917d384 | pbrook | |
100 | a917d384 | pbrook | r->next = s->requests; |
101 | a917d384 | pbrook | s->requests = r; |
102 | a917d384 | pbrook | return r;
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103 | 2e5d83bb | pbrook | } |
104 | 2e5d83bb | pbrook | |
105 | a917d384 | pbrook | static void scsi_remove_request(SCSIRequest *r) |
106 | 4d611c9a | pbrook | { |
107 | a917d384 | pbrook | SCSIRequest *last; |
108 | 8ccc2ace | ths | SCSIDeviceState *s = r->dev; |
109 | a917d384 | pbrook | |
110 | a917d384 | pbrook | if (s->requests == r) {
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111 | a917d384 | pbrook | s->requests = r->next; |
112 | a917d384 | pbrook | } else {
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113 | a917d384 | pbrook | last = s->requests; |
114 | a917d384 | pbrook | while (last && last->next != r)
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115 | a917d384 | pbrook | last = last->next; |
116 | a917d384 | pbrook | if (last) {
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117 | a917d384 | pbrook | last->next = r->next; |
118 | a917d384 | pbrook | } else {
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119 | a917d384 | pbrook | BADF("Orphaned request\n");
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120 | a917d384 | pbrook | } |
121 | a917d384 | pbrook | } |
122 | a917d384 | pbrook | r->next = free_requests; |
123 | a917d384 | pbrook | free_requests = r; |
124 | 4d611c9a | pbrook | } |
125 | 4d611c9a | pbrook | |
126 | 8ccc2ace | ths | static SCSIRequest *scsi_find_request(SCSIDeviceState *s, uint32_t tag)
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127 | 4d611c9a | pbrook | { |
128 | a917d384 | pbrook | SCSIRequest *r; |
129 | 4d611c9a | pbrook | |
130 | a917d384 | pbrook | r = s->requests; |
131 | a917d384 | pbrook | while (r && r->tag != tag)
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132 | a917d384 | pbrook | r = r->next; |
133 | 4d611c9a | pbrook | |
134 | a917d384 | pbrook | return r;
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135 | a917d384 | pbrook | } |
136 | a917d384 | pbrook | |
137 | a917d384 | pbrook | /* Helper function for command completion. */
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138 | 22864256 | blueswir1 | static void scsi_command_complete(SCSIRequest *r, int status, int sense) |
139 | a917d384 | pbrook | { |
140 | 8ccc2ace | ths | SCSIDeviceState *s = r->dev; |
141 | a917d384 | pbrook | uint32_t tag; |
142 | 22864256 | blueswir1 | DPRINTF("Command complete tag=0x%x status=%d sense=%d\n", r->tag, status, sense);
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143 | a917d384 | pbrook | s->sense = sense; |
144 | a917d384 | pbrook | tag = r->tag; |
145 | a917d384 | pbrook | scsi_remove_request(r); |
146 | 22864256 | blueswir1 | s->completion(s->opaque, SCSI_REASON_DONE, tag, status); |
147 | 4d611c9a | pbrook | } |
148 | 4d611c9a | pbrook | |
149 | 4d611c9a | pbrook | /* Cancel a pending data transfer. */
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150 | 8ccc2ace | ths | static void scsi_cancel_io(SCSIDevice *d, uint32_t tag) |
151 | 4d611c9a | pbrook | { |
152 | 8ccc2ace | ths | SCSIDeviceState *s = d->state; |
153 | a917d384 | pbrook | SCSIRequest *r; |
154 | a917d384 | pbrook | DPRINTF("Cancel tag=0x%x\n", tag);
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155 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
156 | a917d384 | pbrook | if (r) {
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157 | a917d384 | pbrook | if (r->aiocb)
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158 | a917d384 | pbrook | bdrv_aio_cancel(r->aiocb); |
159 | a917d384 | pbrook | r->aiocb = NULL;
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160 | a917d384 | pbrook | scsi_remove_request(r); |
161 | a917d384 | pbrook | } |
162 | a917d384 | pbrook | } |
163 | a917d384 | pbrook | |
164 | a917d384 | pbrook | static void scsi_read_complete(void * opaque, int ret) |
165 | a917d384 | pbrook | { |
166 | a917d384 | pbrook | SCSIRequest *r = (SCSIRequest *)opaque; |
167 | 8ccc2ace | ths | SCSIDeviceState *s = r->dev; |
168 | a917d384 | pbrook | |
169 | a917d384 | pbrook | if (ret) {
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170 | a917d384 | pbrook | DPRINTF("IO error\n");
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171 | 22864256 | blueswir1 | s->completion(s->opaque, SCSI_REASON_DATA, r->tag, 0);
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172 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_NO_SENSE); |
173 | 4d611c9a | pbrook | return;
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174 | 4d611c9a | pbrook | } |
175 | c87c0672 | aliguori | DPRINTF("Data ready tag=0x%x len=%d\n", r->tag, r->iov.iov_len);
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176 | a917d384 | pbrook | |
177 | c87c0672 | aliguori | s->completion(s->opaque, SCSI_REASON_DATA, r->tag, r->iov.iov_len); |
178 | 4d611c9a | pbrook | } |
179 | 4d611c9a | pbrook | |
180 | a917d384 | pbrook | /* Read more data from scsi device into buffer. */
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181 | 8ccc2ace | ths | static void scsi_read_data(SCSIDevice *d, uint32_t tag) |
182 | 2e5d83bb | pbrook | { |
183 | 8ccc2ace | ths | SCSIDeviceState *s = d->state; |
184 | a917d384 | pbrook | SCSIRequest *r; |
185 | 2e5d83bb | pbrook | uint32_t n; |
186 | 2e5d83bb | pbrook | |
187 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
188 | a917d384 | pbrook | if (!r) {
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189 | a917d384 | pbrook | BADF("Bad read tag 0x%x\n", tag);
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190 | b1fa7164 | blueswir1 | /* ??? This is the wrong error. */
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191 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_HARDWARE_ERROR); |
192 | a917d384 | pbrook | return;
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193 | 2e5d83bb | pbrook | } |
194 | a917d384 | pbrook | if (r->sector_count == (uint32_t)-1) { |
195 | c87c0672 | aliguori | DPRINTF("Read buf_len=%d\n", r->iov.iov_len);
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196 | a917d384 | pbrook | r->sector_count = 0;
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197 | c87c0672 | aliguori | s->completion(s->opaque, SCSI_REASON_DATA, r->tag, r->iov.iov_len); |
198 | a917d384 | pbrook | return;
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199 | 2e5d83bb | pbrook | } |
200 | a917d384 | pbrook | DPRINTF("Read sector_count=%d\n", r->sector_count);
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201 | a917d384 | pbrook | if (r->sector_count == 0) { |
202 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_GOOD, SENSE_NO_SENSE); |
203 | a917d384 | pbrook | return;
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204 | 2e5d83bb | pbrook | } |
205 | 2e5d83bb | pbrook | |
206 | a917d384 | pbrook | n = r->sector_count; |
207 | a917d384 | pbrook | if (n > SCSI_DMA_BUF_SIZE / 512) |
208 | a917d384 | pbrook | n = SCSI_DMA_BUF_SIZE / 512;
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209 | a917d384 | pbrook | |
210 | c87c0672 | aliguori | r->iov.iov_len = n * 512;
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211 | c87c0672 | aliguori | qemu_iovec_init_external(&r->qiov, &r->iov, 1);
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212 | c87c0672 | aliguori | r->aiocb = bdrv_aio_readv(s->bdrv, r->sector, &r->qiov, n, |
213 | c87c0672 | aliguori | scsi_read_complete, r); |
214 | a917d384 | pbrook | if (r->aiocb == NULL) |
215 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_HARDWARE_ERROR); |
216 | a917d384 | pbrook | r->sector += n; |
217 | a917d384 | pbrook | r->sector_count -= n; |
218 | 2e5d83bb | pbrook | } |
219 | 2e5d83bb | pbrook | |
220 | ea8a5d7f | aliguori | static int scsi_handle_write_error(SCSIRequest *r, int error) |
221 | ea8a5d7f | aliguori | { |
222 | ea8a5d7f | aliguori | BlockInterfaceErrorAction action = drive_get_onerror(r->dev->bdrv); |
223 | ea8a5d7f | aliguori | |
224 | ea8a5d7f | aliguori | if (action == BLOCK_ERR_IGNORE)
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225 | ea8a5d7f | aliguori | return 0; |
226 | ea8a5d7f | aliguori | |
227 | ea8a5d7f | aliguori | if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
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228 | ea8a5d7f | aliguori | || action == BLOCK_ERR_STOP_ANY) { |
229 | ea8a5d7f | aliguori | r->status |= SCSI_REQ_STATUS_RETRY; |
230 | ea8a5d7f | aliguori | vm_stop(0);
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231 | ea8a5d7f | aliguori | } else {
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232 | ea8a5d7f | aliguori | scsi_command_complete(r, STATUS_CHECK_CONDITION, |
233 | ea8a5d7f | aliguori | SENSE_HARDWARE_ERROR); |
234 | ea8a5d7f | aliguori | } |
235 | ea8a5d7f | aliguori | |
236 | ea8a5d7f | aliguori | return 1; |
237 | ea8a5d7f | aliguori | } |
238 | ea8a5d7f | aliguori | |
239 | 4d611c9a | pbrook | static void scsi_write_complete(void * opaque, int ret) |
240 | 4d611c9a | pbrook | { |
241 | a917d384 | pbrook | SCSIRequest *r = (SCSIRequest *)opaque; |
242 | 8ccc2ace | ths | SCSIDeviceState *s = r->dev; |
243 | a917d384 | pbrook | uint32_t len; |
244 | ea8a5d7f | aliguori | uint32_t n; |
245 | ea8a5d7f | aliguori | |
246 | ea8a5d7f | aliguori | r->aiocb = NULL;
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247 | 4d611c9a | pbrook | |
248 | 4d611c9a | pbrook | if (ret) {
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249 | ea8a5d7f | aliguori | if (scsi_handle_write_error(r, -ret))
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250 | ea8a5d7f | aliguori | return;
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251 | 4d611c9a | pbrook | } |
252 | 4d611c9a | pbrook | |
253 | c87c0672 | aliguori | n = r->iov.iov_len / 512;
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254 | ea8a5d7f | aliguori | r->sector += n; |
255 | ea8a5d7f | aliguori | r->sector_count -= n; |
256 | a917d384 | pbrook | if (r->sector_count == 0) { |
257 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_GOOD, SENSE_NO_SENSE); |
258 | a917d384 | pbrook | } else {
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259 | a917d384 | pbrook | len = r->sector_count * 512;
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260 | a917d384 | pbrook | if (len > SCSI_DMA_BUF_SIZE) {
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261 | a917d384 | pbrook | len = SCSI_DMA_BUF_SIZE; |
262 | a917d384 | pbrook | } |
263 | c87c0672 | aliguori | r->iov.iov_len = len; |
264 | a917d384 | pbrook | DPRINTF("Write complete tag=0x%x more=%d\n", r->tag, len);
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265 | a917d384 | pbrook | s->completion(s->opaque, SCSI_REASON_DATA, r->tag, len); |
266 | 4d611c9a | pbrook | } |
267 | 4d611c9a | pbrook | } |
268 | 4d611c9a | pbrook | |
269 | ea8a5d7f | aliguori | static void scsi_write_request(SCSIRequest *r) |
270 | ea8a5d7f | aliguori | { |
271 | ea8a5d7f | aliguori | SCSIDeviceState *s = r->dev; |
272 | ea8a5d7f | aliguori | uint32_t n; |
273 | ea8a5d7f | aliguori | |
274 | c87c0672 | aliguori | n = r->iov.iov_len / 512;
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275 | ea8a5d7f | aliguori | if (n) {
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276 | c87c0672 | aliguori | qemu_iovec_init_external(&r->qiov, &r->iov, 1);
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277 | c87c0672 | aliguori | r->aiocb = bdrv_aio_writev(s->bdrv, r->sector, &r->qiov, n, |
278 | c87c0672 | aliguori | scsi_write_complete, r); |
279 | ea8a5d7f | aliguori | if (r->aiocb == NULL) |
280 | ea8a5d7f | aliguori | scsi_command_complete(r, STATUS_CHECK_CONDITION, |
281 | ea8a5d7f | aliguori | SENSE_HARDWARE_ERROR); |
282 | ea8a5d7f | aliguori | } else {
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283 | ea8a5d7f | aliguori | /* Invoke completion routine to fetch data from host. */
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284 | ea8a5d7f | aliguori | scsi_write_complete(r, 0);
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285 | ea8a5d7f | aliguori | } |
286 | ea8a5d7f | aliguori | } |
287 | ea8a5d7f | aliguori | |
288 | 4d611c9a | pbrook | /* Write data to a scsi device. Returns nonzero on failure.
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289 | 4d611c9a | pbrook | The transfer may complete asynchronously. */
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290 | 8ccc2ace | ths | static int scsi_write_data(SCSIDevice *d, uint32_t tag) |
291 | 2e5d83bb | pbrook | { |
292 | 8ccc2ace | ths | SCSIDeviceState *s = d->state; |
293 | a917d384 | pbrook | SCSIRequest *r; |
294 | 2e5d83bb | pbrook | |
295 | a917d384 | pbrook | DPRINTF("Write data tag=0x%x\n", tag);
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296 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
297 | a917d384 | pbrook | if (!r) {
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298 | a917d384 | pbrook | BADF("Bad write tag 0x%x\n", tag);
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299 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_HARDWARE_ERROR); |
300 | 2e5d83bb | pbrook | return 1; |
301 | 2e5d83bb | pbrook | } |
302 | ea8a5d7f | aliguori | |
303 | a917d384 | pbrook | if (r->aiocb)
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304 | a917d384 | pbrook | BADF("Data transfer already in progress\n");
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305 | ea8a5d7f | aliguori | |
306 | ea8a5d7f | aliguori | scsi_write_request(r); |
307 | 2e5d83bb | pbrook | |
308 | a917d384 | pbrook | return 0; |
309 | a917d384 | pbrook | } |
310 | 2e5d83bb | pbrook | |
311 | ea8a5d7f | aliguori | static void scsi_dma_restart_cb(void *opaque, int running, int reason) |
312 | ea8a5d7f | aliguori | { |
313 | ea8a5d7f | aliguori | SCSIDeviceState *s = opaque; |
314 | ea8a5d7f | aliguori | SCSIRequest *r = s->requests; |
315 | ea8a5d7f | aliguori | if (!running)
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316 | ea8a5d7f | aliguori | return;
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317 | ea8a5d7f | aliguori | |
318 | ea8a5d7f | aliguori | while (r) {
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319 | ea8a5d7f | aliguori | if (r->status & SCSI_REQ_STATUS_RETRY) {
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320 | ea8a5d7f | aliguori | r->status &= ~SCSI_REQ_STATUS_RETRY; |
321 | ea8a5d7f | aliguori | scsi_write_request(r); |
322 | ea8a5d7f | aliguori | } |
323 | ea8a5d7f | aliguori | r = r->next; |
324 | ea8a5d7f | aliguori | } |
325 | ea8a5d7f | aliguori | } |
326 | ea8a5d7f | aliguori | |
327 | a917d384 | pbrook | /* Return a pointer to the data buffer. */
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328 | 8ccc2ace | ths | static uint8_t *scsi_get_buf(SCSIDevice *d, uint32_t tag)
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329 | a917d384 | pbrook | { |
330 | 8ccc2ace | ths | SCSIDeviceState *s = d->state; |
331 | a917d384 | pbrook | SCSIRequest *r; |
332 | 2e5d83bb | pbrook | |
333 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
334 | a917d384 | pbrook | if (!r) {
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335 | a917d384 | pbrook | BADF("Bad buffer tag 0x%x\n", tag);
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336 | a917d384 | pbrook | return NULL; |
337 | 4d611c9a | pbrook | } |
338 | 3f4cb3d3 | blueswir1 | return (uint8_t *)r->iov.iov_base;
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339 | 2e5d83bb | pbrook | } |
340 | 2e5d83bb | pbrook | |
341 | 2e5d83bb | pbrook | /* Execute a scsi command. Returns the length of the data expected by the
|
342 | 2e5d83bb | pbrook | command. This will be Positive for data transfers from the device
|
343 | 2e5d83bb | pbrook | (eg. disk reads), negative for transfers to the device (eg. disk writes),
|
344 | 2e5d83bb | pbrook | and zero if the command does not transfer any data. */
|
345 | 2e5d83bb | pbrook | |
346 | 8ccc2ace | ths | static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag,
|
347 | 8ccc2ace | ths | uint8_t *buf, int lun)
|
348 | 2e5d83bb | pbrook | { |
349 | 8ccc2ace | ths | SCSIDeviceState *s = d->state; |
350 | 96b8f136 | ths | uint64_t nb_sectors; |
351 | 86106e59 | aliguori | uint64_t lba; |
352 | 2e5d83bb | pbrook | uint32_t len; |
353 | 2e5d83bb | pbrook | int cmdlen;
|
354 | 2e5d83bb | pbrook | int is_write;
|
355 | a917d384 | pbrook | uint8_t command; |
356 | a917d384 | pbrook | uint8_t *outbuf; |
357 | a917d384 | pbrook | SCSIRequest *r; |
358 | a917d384 | pbrook | |
359 | a917d384 | pbrook | command = buf[0];
|
360 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
361 | a917d384 | pbrook | if (r) {
|
362 | a917d384 | pbrook | BADF("Tag 0x%x already in use\n", tag);
|
363 | 8ccc2ace | ths | scsi_cancel_io(d, tag); |
364 | a917d384 | pbrook | } |
365 | a917d384 | pbrook | /* ??? Tags are not unique for different luns. We only implement a
|
366 | a917d384 | pbrook | single lun, so this should not matter. */
|
367 | a917d384 | pbrook | r = scsi_new_request(s, tag); |
368 | 3f4cb3d3 | blueswir1 | outbuf = (uint8_t *)r->iov.iov_base; |
369 | 2e5d83bb | pbrook | is_write = 0;
|
370 | a917d384 | pbrook | DPRINTF("Command: lun=%d tag=0x%x data=0x%02x", lun, tag, buf[0]); |
371 | a917d384 | pbrook | switch (command >> 5) { |
372 | 2e5d83bb | pbrook | case 0: |
373 | 86106e59 | aliguori | lba = (uint64_t) buf[3] | ((uint64_t) buf[2] << 8) | |
374 | 86106e59 | aliguori | (((uint64_t) buf[1] & 0x1f) << 16); |
375 | 2e5d83bb | pbrook | len = buf[4];
|
376 | 2e5d83bb | pbrook | cmdlen = 6;
|
377 | 2e5d83bb | pbrook | break;
|
378 | 2e5d83bb | pbrook | case 1: |
379 | 2e5d83bb | pbrook | case 2: |
380 | 86106e59 | aliguori | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | |
381 | 86106e59 | aliguori | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); |
382 | 2e5d83bb | pbrook | len = buf[8] | (buf[7] << 8); |
383 | 2e5d83bb | pbrook | cmdlen = 10;
|
384 | 2e5d83bb | pbrook | break;
|
385 | 2e5d83bb | pbrook | case 4: |
386 | 86106e59 | aliguori | lba = (uint64_t) buf[9] | ((uint64_t) buf[8] << 8) | |
387 | 86106e59 | aliguori | ((uint64_t) buf[7] << 16) | ((uint64_t) buf[6] << 24) | |
388 | 86106e59 | aliguori | ((uint64_t) buf[5] << 32) | ((uint64_t) buf[4] << 40) | |
389 | 86106e59 | aliguori | ((uint64_t) buf[3] << 48) | ((uint64_t) buf[2] << 56); |
390 | 2e5d83bb | pbrook | len = buf[13] | (buf[12] << 8) | (buf[11] << 16) | (buf[10] << 24); |
391 | 2e5d83bb | pbrook | cmdlen = 16;
|
392 | 2e5d83bb | pbrook | break;
|
393 | 2e5d83bb | pbrook | case 5: |
394 | 86106e59 | aliguori | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | |
395 | 86106e59 | aliguori | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); |
396 | 2e5d83bb | pbrook | len = buf[9] | (buf[8] << 8) | (buf[7] << 16) | (buf[6] << 24); |
397 | 2e5d83bb | pbrook | cmdlen = 12;
|
398 | 2e5d83bb | pbrook | break;
|
399 | 2e5d83bb | pbrook | default:
|
400 | a917d384 | pbrook | BADF("Unsupported command length, command %x\n", command);
|
401 | 2e5d83bb | pbrook | goto fail;
|
402 | 2e5d83bb | pbrook | } |
403 | 2e5d83bb | pbrook | #ifdef DEBUG_SCSI
|
404 | 2e5d83bb | pbrook | { |
405 | 2e5d83bb | pbrook | int i;
|
406 | 2e5d83bb | pbrook | for (i = 1; i < cmdlen; i++) { |
407 | 2e5d83bb | pbrook | printf(" 0x%02x", buf[i]);
|
408 | 2e5d83bb | pbrook | } |
409 | 2e5d83bb | pbrook | printf("\n");
|
410 | 2e5d83bb | pbrook | } |
411 | 2e5d83bb | pbrook | #endif
|
412 | 0fc5c15a | pbrook | if (lun || buf[1] >> 5) { |
413 | 2e5d83bb | pbrook | /* Only LUN 0 supported. */
|
414 | 0fc5c15a | pbrook | DPRINTF("Unimplemented LUN %d\n", lun ? lun : buf[1] >> 5); |
415 | 22864256 | blueswir1 | if (command != 0x03 && command != 0x12) /* REQUEST SENSE and INQUIRY */ |
416 | 22864256 | blueswir1 | goto fail;
|
417 | 2e5d83bb | pbrook | } |
418 | a917d384 | pbrook | switch (command) {
|
419 | 2e5d83bb | pbrook | case 0x0: |
420 | 2e5d83bb | pbrook | DPRINTF("Test Unit Ready\n");
|
421 | 58a2c436 | blueswir1 | if (!bdrv_is_inserted(s->bdrv))
|
422 | 58a2c436 | blueswir1 | goto notready;
|
423 | 2e5d83bb | pbrook | break;
|
424 | 2e5d83bb | pbrook | case 0x03: |
425 | 2e5d83bb | pbrook | DPRINTF("Request Sense (len %d)\n", len);
|
426 | 2e5d83bb | pbrook | if (len < 4) |
427 | 2e5d83bb | pbrook | goto fail;
|
428 | 67cd24a8 | ths | memset(outbuf, 0, 4); |
429 | c87c0672 | aliguori | r->iov.iov_len = 4;
|
430 | ed6a9b30 | blueswir1 | if (s->sense == SENSE_NOT_READY && len >= 18) { |
431 | ed6a9b30 | blueswir1 | memset(outbuf, 0, 18); |
432 | c87c0672 | aliguori | r->iov.iov_len = 18;
|
433 | ed6a9b30 | blueswir1 | outbuf[7] = 10; |
434 | ed6a9b30 | blueswir1 | /* asc 0x3a, ascq 0: Medium not present */
|
435 | ed6a9b30 | blueswir1 | outbuf[12] = 0x3a; |
436 | ed6a9b30 | blueswir1 | outbuf[13] = 0; |
437 | ed6a9b30 | blueswir1 | } |
438 | a917d384 | pbrook | outbuf[0] = 0xf0; |
439 | a917d384 | pbrook | outbuf[1] = 0; |
440 | a917d384 | pbrook | outbuf[2] = s->sense;
|
441 | 2e5d83bb | pbrook | break;
|
442 | 2e5d83bb | pbrook | case 0x12: |
443 | 7d8406be | pbrook | DPRINTF("Inquiry (len %d)\n", len);
|
444 | 1d4db89c | balrog | if (buf[1] & 0x2) { |
445 | 1d4db89c | balrog | /* Command support data - optional, not implemented */
|
446 | 1d4db89c | balrog | BADF("optional INQUIRY command support request not implemented\n");
|
447 | 1d4db89c | balrog | goto fail;
|
448 | 1d4db89c | balrog | } |
449 | 1d4db89c | balrog | else if (buf[1] & 0x1) { |
450 | 1d4db89c | balrog | /* Vital product data */
|
451 | 1d4db89c | balrog | uint8_t page_code = buf[2];
|
452 | 1d4db89c | balrog | if (len < 4) { |
453 | 1d4db89c | balrog | BADF("Error: Inquiry (EVPD[%02X]) buffer size %d is "
|
454 | 1d4db89c | balrog | "less than 4\n", page_code, len);
|
455 | 1d4db89c | balrog | goto fail;
|
456 | 1d4db89c | balrog | } |
457 | 1d4db89c | balrog | |
458 | 1d4db89c | balrog | switch (page_code) {
|
459 | 1d4db89c | balrog | case 0x00: |
460 | 1d4db89c | balrog | { |
461 | 1d4db89c | balrog | /* Supported page codes, mandatory */
|
462 | 1d4db89c | balrog | DPRINTF("Inquiry EVPD[Supported pages] "
|
463 | 1d4db89c | balrog | "buffer size %d\n", len);
|
464 | 1d4db89c | balrog | |
465 | c87c0672 | aliguori | r->iov.iov_len = 0;
|
466 | 1d4db89c | balrog | |
467 | 1d4db89c | balrog | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
|
468 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 5;
|
469 | 1d4db89c | balrog | } else {
|
470 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0;
|
471 | 1d4db89c | balrog | } |
472 | 1d4db89c | balrog | |
473 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x00; // this page |
474 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x00;
|
475 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 3; // number of pages |
476 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x00; // list of supported pages (this page) |
477 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x80; // unit serial number |
478 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x83; // device identification |
479 | 1d4db89c | balrog | } |
480 | 1d4db89c | balrog | break;
|
481 | 1d4db89c | balrog | case 0x80: |
482 | 1d4db89c | balrog | { |
483 | fa879c64 | aliguori | int l;
|
484 | fa879c64 | aliguori | |
485 | 1d4db89c | balrog | /* Device serial number, optional */
|
486 | 1d4db89c | balrog | if (len < 4) { |
487 | 1d4db89c | balrog | BADF("Error: EVPD[Serial number] Inquiry buffer "
|
488 | 1d4db89c | balrog | "size %d too small, %d needed\n", len, 4); |
489 | 1d4db89c | balrog | goto fail;
|
490 | 1d4db89c | balrog | } |
491 | 1d4db89c | balrog | |
492 | 1d4db89c | balrog | DPRINTF("Inquiry EVPD[Serial number] buffer size %d\n", len);
|
493 | fa879c64 | aliguori | l = MIN(len, strlen(s->drive_serial_str)); |
494 | 1d4db89c | balrog | |
495 | c87c0672 | aliguori | r->iov.iov_len = 0;
|
496 | 1d4db89c | balrog | |
497 | 1d4db89c | balrog | /* Supported page codes */
|
498 | 1d4db89c | balrog | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
|
499 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 5;
|
500 | 1d4db89c | balrog | } else {
|
501 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0;
|
502 | 1d4db89c | balrog | } |
503 | 1d4db89c | balrog | |
504 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x80; // this page |
505 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x00;
|
506 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = l; |
507 | c87c0672 | aliguori | memcpy(&outbuf[r->iov.iov_len], s->drive_serial_str, l); |
508 | c87c0672 | aliguori | r->iov.iov_len += l; |
509 | 1d4db89c | balrog | } |
510 | 1d4db89c | balrog | |
511 | 1d4db89c | balrog | break;
|
512 | 1d4db89c | balrog | case 0x83: |
513 | 1d4db89c | balrog | { |
514 | 1d4db89c | balrog | /* Device identification page, mandatory */
|
515 | 1d4db89c | balrog | int max_len = 255 - 8; |
516 | 1d4db89c | balrog | int id_len = strlen(bdrv_get_device_name(s->bdrv));
|
517 | 1d4db89c | balrog | if (id_len > max_len)
|
518 | 1d4db89c | balrog | id_len = max_len; |
519 | 1d4db89c | balrog | |
520 | 1d4db89c | balrog | DPRINTF("Inquiry EVPD[Device identification] "
|
521 | 1d4db89c | balrog | "buffer size %d\n", len);
|
522 | c87c0672 | aliguori | r->iov.iov_len = 0;
|
523 | 1d4db89c | balrog | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
|
524 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 5;
|
525 | 1d4db89c | balrog | } else {
|
526 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0;
|
527 | 1d4db89c | balrog | } |
528 | 1d4db89c | balrog | |
529 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x83; // this page |
530 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x00;
|
531 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 3 + id_len;
|
532 | 1d4db89c | balrog | |
533 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x2; // ASCII |
534 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0; // not officially assigned |
535 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0; // reserved |
536 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = id_len; // length of data following
|
537 | 1d4db89c | balrog | |
538 | c87c0672 | aliguori | memcpy(&outbuf[r->iov.iov_len], |
539 | 1d4db89c | balrog | bdrv_get_device_name(s->bdrv), id_len); |
540 | c87c0672 | aliguori | r->iov.iov_len += id_len; |
541 | 1d4db89c | balrog | } |
542 | 1d4db89c | balrog | break;
|
543 | 1d4db89c | balrog | default:
|
544 | 1d4db89c | balrog | BADF("Error: unsupported Inquiry (EVPD[%02X]) "
|
545 | 1d4db89c | balrog | "buffer size %d\n", page_code, len);
|
546 | 1d4db89c | balrog | goto fail;
|
547 | 1d4db89c | balrog | } |
548 | 1d4db89c | balrog | /* done with EVPD */
|
549 | 1d4db89c | balrog | break;
|
550 | 1d4db89c | balrog | } |
551 | 1d4db89c | balrog | else {
|
552 | 1d4db89c | balrog | /* Standard INQUIRY data */
|
553 | 1d4db89c | balrog | if (buf[2] != 0) { |
554 | 1d4db89c | balrog | BADF("Error: Inquiry (STANDARD) page or code "
|
555 | 1d4db89c | balrog | "is non-zero [%02X]\n", buf[2]); |
556 | 1d4db89c | balrog | goto fail;
|
557 | 1d4db89c | balrog | } |
558 | 1d4db89c | balrog | |
559 | 1d4db89c | balrog | /* PAGE CODE == 0 */
|
560 | 1d4db89c | balrog | if (len < 5) { |
561 | 1d4db89c | balrog | BADF("Error: Inquiry (STANDARD) buffer size %d "
|
562 | 1d4db89c | balrog | "is less than 5\n", len);
|
563 | 1d4db89c | balrog | goto fail;
|
564 | 1d4db89c | balrog | } |
565 | 1d4db89c | balrog | |
566 | 1d4db89c | balrog | if (len < 36) { |
567 | 1d4db89c | balrog | BADF("Error: Inquiry (STANDARD) buffer size %d "
|
568 | 1d4db89c | balrog | "is less than 36 (TODO: only 5 required)\n", len);
|
569 | 1d4db89c | balrog | } |
570 | 2e5d83bb | pbrook | } |
571 | 57575058 | balrog | |
572 | 57575058 | balrog | if(len > SCSI_MAX_INQUIRY_LEN)
|
573 | 57575058 | balrog | len = SCSI_MAX_INQUIRY_LEN; |
574 | 57575058 | balrog | |
575 | 57575058 | balrog | memset(outbuf, 0, len);
|
576 | 22864256 | blueswir1 | |
577 | 22864256 | blueswir1 | if (lun || buf[1] >> 5) { |
578 | 22864256 | blueswir1 | outbuf[0] = 0x7f; /* LUN not supported */ |
579 | 22864256 | blueswir1 | } else if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) { |
580 | a917d384 | pbrook | outbuf[0] = 5; |
581 | a917d384 | pbrook | outbuf[1] = 0x80; |
582 | a917d384 | pbrook | memcpy(&outbuf[16], "QEMU CD-ROM ", 16); |
583 | 2e5d83bb | pbrook | } else {
|
584 | a917d384 | pbrook | outbuf[0] = 0; |
585 | a917d384 | pbrook | memcpy(&outbuf[16], "QEMU HARDDISK ", 16); |
586 | 2e5d83bb | pbrook | } |
587 | a917d384 | pbrook | memcpy(&outbuf[8], "QEMU ", 8); |
588 | a917d384 | pbrook | memcpy(&outbuf[32], QEMU_VERSION, 4); |
589 | 17acfe32 | pbrook | /* Identify device as SCSI-3 rev 1.
|
590 | 17acfe32 | pbrook | Some later commands are also implemented. */
|
591 | a917d384 | pbrook | outbuf[2] = 3; |
592 | a917d384 | pbrook | outbuf[3] = 2; /* Format 2 */ |
593 | 57575058 | balrog | outbuf[4] = len - 5; /* Additional Length = (Len - 1) - 4 */ |
594 | a917d384 | pbrook | /* Sync data transfer and TCQ. */
|
595 | a917d384 | pbrook | outbuf[7] = 0x10 | (s->tcq ? 0x02 : 0); |
596 | c87c0672 | aliguori | r->iov.iov_len = len; |
597 | 2e5d83bb | pbrook | break;
|
598 | 2e5d83bb | pbrook | case 0x16: |
599 | 2e5d83bb | pbrook | DPRINTF("Reserve(6)\n");
|
600 | 2e5d83bb | pbrook | if (buf[1] & 1) |
601 | 2e5d83bb | pbrook | goto fail;
|
602 | 2e5d83bb | pbrook | break;
|
603 | 2e5d83bb | pbrook | case 0x17: |
604 | 2e5d83bb | pbrook | DPRINTF("Release(6)\n");
|
605 | 2e5d83bb | pbrook | if (buf[1] & 1) |
606 | 2e5d83bb | pbrook | goto fail;
|
607 | 2e5d83bb | pbrook | break;
|
608 | 2e5d83bb | pbrook | case 0x1a: |
609 | 7d8406be | pbrook | case 0x5a: |
610 | 17acfe32 | pbrook | { |
611 | a917d384 | pbrook | uint8_t *p; |
612 | 17acfe32 | pbrook | int page;
|
613 | 17acfe32 | pbrook | |
614 | 17acfe32 | pbrook | page = buf[2] & 0x3f; |
615 | 17acfe32 | pbrook | DPRINTF("Mode Sense (page %d, len %d)\n", page, len);
|
616 | a917d384 | pbrook | p = outbuf; |
617 | 17acfe32 | pbrook | memset(p, 0, 4); |
618 | a917d384 | pbrook | outbuf[1] = 0; /* Default media type. */ |
619 | a917d384 | pbrook | outbuf[3] = 0; /* Block descriptor length. */ |
620 | 17acfe32 | pbrook | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
|
621 | a917d384 | pbrook | outbuf[2] = 0x80; /* Readonly. */ |
622 | 17acfe32 | pbrook | } |
623 | 17acfe32 | pbrook | p += 4;
|
624 | 5e65a310 | blueswir1 | if (page == 4) { |
625 | 5e65a310 | blueswir1 | int cylinders, heads, secs;
|
626 | 5e65a310 | blueswir1 | |
627 | 5e65a310 | blueswir1 | /* Rigid disk device geometry page. */
|
628 | 5e65a310 | blueswir1 | p[0] = 4; |
629 | 5e65a310 | blueswir1 | p[1] = 0x16; |
630 | 5e65a310 | blueswir1 | /* if a geometry hint is available, use it */
|
631 | 5e65a310 | blueswir1 | bdrv_get_geometry_hint(s->bdrv, &cylinders, &heads, &secs); |
632 | 5e65a310 | blueswir1 | p[2] = (cylinders >> 16) & 0xff; |
633 | 5e65a310 | blueswir1 | p[3] = (cylinders >> 8) & 0xff; |
634 | 5e65a310 | blueswir1 | p[4] = cylinders & 0xff; |
635 | 5e65a310 | blueswir1 | p[5] = heads & 0xff; |
636 | 5e65a310 | blueswir1 | /* Write precomp start cylinder, disabled */
|
637 | 5e65a310 | blueswir1 | p[6] = (cylinders >> 16) & 0xff; |
638 | 5e65a310 | blueswir1 | p[7] = (cylinders >> 8) & 0xff; |
639 | 5e65a310 | blueswir1 | p[8] = cylinders & 0xff; |
640 | 5e65a310 | blueswir1 | /* Reduced current start cylinder, disabled */
|
641 | 5e65a310 | blueswir1 | p[9] = (cylinders >> 16) & 0xff; |
642 | 5e65a310 | blueswir1 | p[10] = (cylinders >> 8) & 0xff; |
643 | 5e65a310 | blueswir1 | p[11] = cylinders & 0xff; |
644 | 5e65a310 | blueswir1 | /* Device step rate [ns], 200ns */
|
645 | 5e65a310 | blueswir1 | p[12] = 0; |
646 | 5e65a310 | blueswir1 | p[13] = 200; |
647 | 5e65a310 | blueswir1 | /* Landing zone cylinder */
|
648 | 5e65a310 | blueswir1 | p[14] = 0xff; |
649 | 5e65a310 | blueswir1 | p[15] = 0xff; |
650 | 5e65a310 | blueswir1 | p[16] = 0xff; |
651 | 5e65a310 | blueswir1 | /* Medium rotation rate [rpm], 5400 rpm */
|
652 | 5e65a310 | blueswir1 | p[20] = (5400 >> 8) & 0xff; |
653 | 5e65a310 | blueswir1 | p[21] = 5400 & 0xff; |
654 | 5e65a310 | blueswir1 | p += 0x16;
|
655 | 5e65a310 | blueswir1 | } else if (page == 5) { |
656 | 5e65a310 | blueswir1 | int cylinders, heads, secs;
|
657 | 5e65a310 | blueswir1 | |
658 | 5e65a310 | blueswir1 | /* Flexible disk device geometry page. */
|
659 | 5e65a310 | blueswir1 | p[0] = 5; |
660 | 5e65a310 | blueswir1 | p[1] = 0x1e; |
661 | 5e65a310 | blueswir1 | /* Transfer rate [kbit/s], 5Mbit/s */
|
662 | 5e65a310 | blueswir1 | p[2] = 5000 >> 8; |
663 | 5e65a310 | blueswir1 | p[3] = 5000 & 0xff; |
664 | 5e65a310 | blueswir1 | /* if a geometry hint is available, use it */
|
665 | 5e65a310 | blueswir1 | bdrv_get_geometry_hint(s->bdrv, &cylinders, &heads, &secs); |
666 | 5e65a310 | blueswir1 | p[4] = heads & 0xff; |
667 | 5e65a310 | blueswir1 | p[5] = secs & 0xff; |
668 | 5e65a310 | blueswir1 | p[6] = s->cluster_size * 2; |
669 | 5e65a310 | blueswir1 | p[8] = (cylinders >> 8) & 0xff; |
670 | 5e65a310 | blueswir1 | p[9] = cylinders & 0xff; |
671 | 5e65a310 | blueswir1 | /* Write precomp start cylinder, disabled */
|
672 | 5e65a310 | blueswir1 | p[10] = (cylinders >> 8) & 0xff; |
673 | 5e65a310 | blueswir1 | p[11] = cylinders & 0xff; |
674 | 5e65a310 | blueswir1 | /* Reduced current start cylinder, disabled */
|
675 | 5e65a310 | blueswir1 | p[12] = (cylinders >> 8) & 0xff; |
676 | 5e65a310 | blueswir1 | p[13] = cylinders & 0xff; |
677 | 5e65a310 | blueswir1 | /* Device step rate [100us], 100us */
|
678 | 5e65a310 | blueswir1 | p[14] = 0; |
679 | 5e65a310 | blueswir1 | p[15] = 1; |
680 | 5e65a310 | blueswir1 | /* Device step pulse width [us], 1us */
|
681 | 5e65a310 | blueswir1 | p[16] = 1; |
682 | 5e65a310 | blueswir1 | /* Device head settle delay [100us], 100us */
|
683 | 5e65a310 | blueswir1 | p[17] = 0; |
684 | 5e65a310 | blueswir1 | p[18] = 1; |
685 | 5e65a310 | blueswir1 | /* Motor on delay [0.1s], 0.1s */
|
686 | 5e65a310 | blueswir1 | p[19] = 1; |
687 | 5e65a310 | blueswir1 | /* Motor off delay [0.1s], 0.1s */
|
688 | 5e65a310 | blueswir1 | p[20] = 1; |
689 | 5e65a310 | blueswir1 | /* Medium rotation rate [rpm], 5400 rpm */
|
690 | 5e65a310 | blueswir1 | p[28] = (5400 >> 8) & 0xff; |
691 | 5e65a310 | blueswir1 | p[29] = 5400 & 0xff; |
692 | 5e65a310 | blueswir1 | p += 0x1e;
|
693 | 5e65a310 | blueswir1 | } else if ((page == 8 || page == 0x3f)) { |
694 | 17acfe32 | pbrook | /* Caching page. */
|
695 | 67cd24a8 | ths | memset(p,0,20); |
696 | 17acfe32 | pbrook | p[0] = 8; |
697 | 17acfe32 | pbrook | p[1] = 0x12; |
698 | 17acfe32 | pbrook | p[2] = 4; /* WCE */ |
699 | 67cd24a8 | ths | p += 20;
|
700 | 17acfe32 | pbrook | } |
701 | 17acfe32 | pbrook | if ((page == 0x3f || page == 0x2a) |
702 | 17acfe32 | pbrook | && (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM)) { |
703 | 17acfe32 | pbrook | /* CD Capabilities and Mechanical Status page. */
|
704 | 17acfe32 | pbrook | p[0] = 0x2a; |
705 | 17acfe32 | pbrook | p[1] = 0x14; |
706 | 17acfe32 | pbrook | p[2] = 3; // CD-R & CD-RW read |
707 | 17acfe32 | pbrook | p[3] = 0; // Writing not supported |
708 | 17acfe32 | pbrook | p[4] = 0x7f; /* Audio, composite, digital out, |
709 | 17acfe32 | pbrook | mode 2 form 1&2, multi session */
|
710 | 17acfe32 | pbrook | p[5] = 0xff; /* CD DA, DA accurate, RW supported, |
711 | 17acfe32 | pbrook | RW corrected, C2 errors, ISRC,
|
712 | 17acfe32 | pbrook | UPC, Bar code */
|
713 | 17acfe32 | pbrook | p[6] = 0x2d | (bdrv_is_locked(s->bdrv)? 2 : 0); |
714 | 17acfe32 | pbrook | /* Locking supported, jumper present, eject, tray */
|
715 | 17acfe32 | pbrook | p[7] = 0; /* no volume & mute control, no |
716 | 17acfe32 | pbrook | changer */
|
717 | 17acfe32 | pbrook | p[8] = (50 * 176) >> 8; // 50x read speed |
718 | 17acfe32 | pbrook | p[9] = (50 * 176) & 0xff; |
719 | 17acfe32 | pbrook | p[10] = 0 >> 8; // No volume |
720 | 17acfe32 | pbrook | p[11] = 0 & 0xff; |
721 | 17acfe32 | pbrook | p[12] = 2048 >> 8; // 2M buffer |
722 | 17acfe32 | pbrook | p[13] = 2048 & 0xff; |
723 | 17acfe32 | pbrook | p[14] = (16 * 176) >> 8; // 16x read speed current |
724 | 17acfe32 | pbrook | p[15] = (16 * 176) & 0xff; |
725 | 17acfe32 | pbrook | p[18] = (16 * 176) >> 8; // 16x write speed |
726 | 17acfe32 | pbrook | p[19] = (16 * 176) & 0xff; |
727 | 17acfe32 | pbrook | p[20] = (16 * 176) >> 8; // 16x write speed current |
728 | 17acfe32 | pbrook | p[21] = (16 * 176) & 0xff; |
729 | 67cd24a8 | ths | p += 22;
|
730 | 17acfe32 | pbrook | } |
731 | c87c0672 | aliguori | r->iov.iov_len = p - outbuf; |
732 | c87c0672 | aliguori | outbuf[0] = r->iov.iov_len - 4; |
733 | c87c0672 | aliguori | if (r->iov.iov_len > len)
|
734 | c87c0672 | aliguori | r->iov.iov_len = len; |
735 | 7d8406be | pbrook | } |
736 | 17acfe32 | pbrook | break;
|
737 | 17acfe32 | pbrook | case 0x1b: |
738 | 17acfe32 | pbrook | DPRINTF("Start Stop Unit\n");
|
739 | b2056c16 | blueswir1 | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM &&
|
740 | b2056c16 | blueswir1 | (buf[4] & 2)) |
741 | b2056c16 | blueswir1 | /* load/eject medium */
|
742 | b2056c16 | blueswir1 | bdrv_eject(s->bdrv, !(buf[4] & 1)); |
743 | 17acfe32 | pbrook | break;
|
744 | 17acfe32 | pbrook | case 0x1e: |
745 | 17acfe32 | pbrook | DPRINTF("Prevent Allow Medium Removal (prevent = %d)\n", buf[4] & 3); |
746 | 17acfe32 | pbrook | bdrv_set_locked(s->bdrv, buf[4] & 1); |
747 | 2e5d83bb | pbrook | break;
|
748 | 2e5d83bb | pbrook | case 0x25: |
749 | 2e5d83bb | pbrook | DPRINTF("Read Capacity\n");
|
750 | 2e5d83bb | pbrook | /* The normal LEN field for this command is zero. */
|
751 | a917d384 | pbrook | memset(outbuf, 0, 8); |
752 | 2e5d83bb | pbrook | bdrv_get_geometry(s->bdrv, &nb_sectors); |
753 | c1c0438c | aliguori | nb_sectors /= s->cluster_size; |
754 | 51c1ebb1 | pbrook | /* Returned value is the address of the last sector. */
|
755 | 51c1ebb1 | pbrook | if (nb_sectors) {
|
756 | 51c1ebb1 | pbrook | nb_sectors--; |
757 | 274fb0e1 | aliguori | /* Remember the new size for read/write sanity checking. */
|
758 | 274fb0e1 | aliguori | s->max_lba = nb_sectors; |
759 | e035b43d | aliguori | /* Clip to 2TB, instead of returning capacity modulo 2TB. */
|
760 | e035b43d | aliguori | if (nb_sectors > UINT32_MAX)
|
761 | e035b43d | aliguori | nb_sectors = UINT32_MAX; |
762 | a917d384 | pbrook | outbuf[0] = (nb_sectors >> 24) & 0xff; |
763 | a917d384 | pbrook | outbuf[1] = (nb_sectors >> 16) & 0xff; |
764 | a917d384 | pbrook | outbuf[2] = (nb_sectors >> 8) & 0xff; |
765 | a917d384 | pbrook | outbuf[3] = nb_sectors & 0xff; |
766 | a917d384 | pbrook | outbuf[4] = 0; |
767 | a917d384 | pbrook | outbuf[5] = 0; |
768 | a917d384 | pbrook | outbuf[6] = s->cluster_size * 2; |
769 | a917d384 | pbrook | outbuf[7] = 0; |
770 | c87c0672 | aliguori | r->iov.iov_len = 8;
|
771 | 51c1ebb1 | pbrook | } else {
|
772 | 58a2c436 | blueswir1 | notready:
|
773 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_NOT_READY); |
774 | 35f1df84 | pbrook | return 0; |
775 | 51c1ebb1 | pbrook | } |
776 | 2e5d83bb | pbrook | break;
|
777 | 2e5d83bb | pbrook | case 0x08: |
778 | 2e5d83bb | pbrook | case 0x28: |
779 | 86106e59 | aliguori | case 0x88: |
780 | 86106e59 | aliguori | DPRINTF("Read (sector %lld, count %d)\n", lba, len);
|
781 | 274fb0e1 | aliguori | if (lba > s->max_lba)
|
782 | 274fb0e1 | aliguori | goto illegal_lba;
|
783 | a917d384 | pbrook | r->sector = lba * s->cluster_size; |
784 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
785 | 2e5d83bb | pbrook | break;
|
786 | 2e5d83bb | pbrook | case 0x0a: |
787 | 2e5d83bb | pbrook | case 0x2a: |
788 | 86106e59 | aliguori | case 0x8a: |
789 | 86106e59 | aliguori | DPRINTF("Write (sector %lld, count %d)\n", lba, len);
|
790 | 274fb0e1 | aliguori | if (lba > s->max_lba)
|
791 | 274fb0e1 | aliguori | goto illegal_lba;
|
792 | a917d384 | pbrook | r->sector = lba * s->cluster_size; |
793 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
794 | 2e5d83bb | pbrook | is_write = 1;
|
795 | 2e5d83bb | pbrook | break;
|
796 | 7d8406be | pbrook | case 0x35: |
797 | e91c8a77 | ths | DPRINTF("Synchronise cache (sector %d, count %d)\n", lba, len);
|
798 | 7a6cba61 | pbrook | bdrv_flush(s->bdrv); |
799 | 7d8406be | pbrook | break;
|
800 | 2e5d83bb | pbrook | case 0x43: |
801 | 2e5d83bb | pbrook | { |
802 | 7c22dd52 | pbrook | int start_track, format, msf, toclen;
|
803 | 2e5d83bb | pbrook | |
804 | 2e5d83bb | pbrook | msf = buf[1] & 2; |
805 | 2e5d83bb | pbrook | format = buf[2] & 0xf; |
806 | 2e5d83bb | pbrook | start_track = buf[6];
|
807 | 2e5d83bb | pbrook | bdrv_get_geometry(s->bdrv, &nb_sectors); |
808 | 2e5d83bb | pbrook | DPRINTF("Read TOC (track %d format %d msf %d)\n", start_track, format, msf >> 1); |
809 | ee16b24a | blueswir1 | nb_sectors /= s->cluster_size; |
810 | 2e5d83bb | pbrook | switch(format) {
|
811 | 2e5d83bb | pbrook | case 0: |
812 | a917d384 | pbrook | toclen = cdrom_read_toc(nb_sectors, outbuf, msf, start_track); |
813 | 2e5d83bb | pbrook | break;
|
814 | 2e5d83bb | pbrook | case 1: |
815 | 2e5d83bb | pbrook | /* multi session : only a single session defined */
|
816 | 7c22dd52 | pbrook | toclen = 12;
|
817 | a917d384 | pbrook | memset(outbuf, 0, 12); |
818 | a917d384 | pbrook | outbuf[1] = 0x0a; |
819 | a917d384 | pbrook | outbuf[2] = 0x01; |
820 | a917d384 | pbrook | outbuf[3] = 0x01; |
821 | 2e5d83bb | pbrook | break;
|
822 | 2e5d83bb | pbrook | case 2: |
823 | a917d384 | pbrook | toclen = cdrom_read_toc_raw(nb_sectors, outbuf, msf, start_track); |
824 | 2e5d83bb | pbrook | break;
|
825 | 2e5d83bb | pbrook | default:
|
826 | 7c22dd52 | pbrook | goto error_cmd;
|
827 | 7c22dd52 | pbrook | } |
828 | 7c22dd52 | pbrook | if (toclen > 0) { |
829 | 7c22dd52 | pbrook | if (len > toclen)
|
830 | 7c22dd52 | pbrook | len = toclen; |
831 | c87c0672 | aliguori | r->iov.iov_len = len; |
832 | 7c22dd52 | pbrook | break;
|
833 | 2e5d83bb | pbrook | } |
834 | 7c22dd52 | pbrook | error_cmd:
|
835 | 7c22dd52 | pbrook | DPRINTF("Read TOC error\n");
|
836 | 7c22dd52 | pbrook | goto fail;
|
837 | 2e5d83bb | pbrook | } |
838 | 17acfe32 | pbrook | case 0x46: |
839 | 17acfe32 | pbrook | DPRINTF("Get Configuration (rt %d, maxlen %d)\n", buf[1] & 3, len); |
840 | a917d384 | pbrook | memset(outbuf, 0, 8); |
841 | 1235fc06 | ths | /* ??? This should probably return much more information. For now
|
842 | 17acfe32 | pbrook | just return the basic header indicating the CD-ROM profile. */
|
843 | a917d384 | pbrook | outbuf[7] = 8; // CD-ROM |
844 | c87c0672 | aliguori | r->iov.iov_len = 8;
|
845 | 17acfe32 | pbrook | break;
|
846 | 2e5d83bb | pbrook | case 0x56: |
847 | 2e5d83bb | pbrook | DPRINTF("Reserve(10)\n");
|
848 | 2e5d83bb | pbrook | if (buf[1] & 3) |
849 | 2e5d83bb | pbrook | goto fail;
|
850 | 2e5d83bb | pbrook | break;
|
851 | 2e5d83bb | pbrook | case 0x57: |
852 | 2e5d83bb | pbrook | DPRINTF("Release(10)\n");
|
853 | 2e5d83bb | pbrook | if (buf[1] & 3) |
854 | 2e5d83bb | pbrook | goto fail;
|
855 | 2e5d83bb | pbrook | break;
|
856 | 86106e59 | aliguori | case 0x9e: |
857 | 86106e59 | aliguori | /* Service Action In subcommands. */
|
858 | 86106e59 | aliguori | if ((buf[1] & 31) == 0x10) { |
859 | 86106e59 | aliguori | DPRINTF("SAI READ CAPACITY(16)\n");
|
860 | 86106e59 | aliguori | memset(outbuf, 0, len);
|
861 | 86106e59 | aliguori | bdrv_get_geometry(s->bdrv, &nb_sectors); |
862 | c1c0438c | aliguori | nb_sectors /= s->cluster_size; |
863 | 86106e59 | aliguori | /* Returned value is the address of the last sector. */
|
864 | 86106e59 | aliguori | if (nb_sectors) {
|
865 | 86106e59 | aliguori | nb_sectors--; |
866 | 274fb0e1 | aliguori | /* Remember the new size for read/write sanity checking. */
|
867 | 274fb0e1 | aliguori | s->max_lba = nb_sectors; |
868 | 86106e59 | aliguori | outbuf[0] = (nb_sectors >> 56) & 0xff; |
869 | 86106e59 | aliguori | outbuf[1] = (nb_sectors >> 48) & 0xff; |
870 | 86106e59 | aliguori | outbuf[2] = (nb_sectors >> 40) & 0xff; |
871 | 86106e59 | aliguori | outbuf[3] = (nb_sectors >> 32) & 0xff; |
872 | 86106e59 | aliguori | outbuf[4] = (nb_sectors >> 24) & 0xff; |
873 | 86106e59 | aliguori | outbuf[5] = (nb_sectors >> 16) & 0xff; |
874 | 86106e59 | aliguori | outbuf[6] = (nb_sectors >> 8) & 0xff; |
875 | 86106e59 | aliguori | outbuf[7] = nb_sectors & 0xff; |
876 | 86106e59 | aliguori | outbuf[8] = 0; |
877 | 86106e59 | aliguori | outbuf[9] = 0; |
878 | 86106e59 | aliguori | outbuf[10] = s->cluster_size * 2; |
879 | 86106e59 | aliguori | outbuf[11] = 0; |
880 | 86106e59 | aliguori | /* Protection, exponent and lowest lba field left blank. */
|
881 | c87c0672 | aliguori | r->iov.iov_len = len; |
882 | 86106e59 | aliguori | } else {
|
883 | 86106e59 | aliguori | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_NOT_READY); |
884 | 86106e59 | aliguori | return 0; |
885 | 86106e59 | aliguori | } |
886 | 86106e59 | aliguori | break;
|
887 | 86106e59 | aliguori | } |
888 | 86106e59 | aliguori | DPRINTF("Unsupported Service Action In\n");
|
889 | 86106e59 | aliguori | goto fail;
|
890 | 2e5d83bb | pbrook | case 0xa0: |
891 | 2e5d83bb | pbrook | DPRINTF("Report LUNs (len %d)\n", len);
|
892 | 2e5d83bb | pbrook | if (len < 16) |
893 | 2e5d83bb | pbrook | goto fail;
|
894 | a917d384 | pbrook | memset(outbuf, 0, 16); |
895 | a917d384 | pbrook | outbuf[3] = 8; |
896 | c87c0672 | aliguori | r->iov.iov_len = 16;
|
897 | 2e5d83bb | pbrook | break;
|
898 | 22864256 | blueswir1 | case 0x2f: |
899 | 22864256 | blueswir1 | DPRINTF("Verify (sector %d, count %d)\n", lba, len);
|
900 | 22864256 | blueswir1 | break;
|
901 | 2e5d83bb | pbrook | default:
|
902 | 2e5d83bb | pbrook | DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]); |
903 | 2e5d83bb | pbrook | fail:
|
904 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_ILLEGAL_REQUEST); |
905 | 2e5d83bb | pbrook | return 0; |
906 | 274fb0e1 | aliguori | illegal_lba:
|
907 | 274fb0e1 | aliguori | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_HARDWARE_ERROR); |
908 | 274fb0e1 | aliguori | return 0; |
909 | 2e5d83bb | pbrook | } |
910 | c87c0672 | aliguori | if (r->sector_count == 0 && r->iov.iov_len == 0) { |
911 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_GOOD, SENSE_NO_SENSE); |
912 | a917d384 | pbrook | } |
913 | c87c0672 | aliguori | len = r->sector_count * 512 + r->iov.iov_len;
|
914 | a917d384 | pbrook | if (is_write) {
|
915 | a917d384 | pbrook | return -len;
|
916 | a917d384 | pbrook | } else {
|
917 | a917d384 | pbrook | if (!r->sector_count)
|
918 | a917d384 | pbrook | r->sector_count = -1;
|
919 | a917d384 | pbrook | return len;
|
920 | 2e5d83bb | pbrook | } |
921 | 2e5d83bb | pbrook | } |
922 | 2e5d83bb | pbrook | |
923 | 8ccc2ace | ths | static void scsi_destroy(SCSIDevice *d) |
924 | 2e5d83bb | pbrook | { |
925 | 8ccc2ace | ths | qemu_free(d->state); |
926 | 8ccc2ace | ths | qemu_free(d); |
927 | 2e5d83bb | pbrook | } |
928 | 2e5d83bb | pbrook | |
929 | 8ccc2ace | ths | SCSIDevice *scsi_disk_init(BlockDriverState *bdrv, int tcq,
|
930 | 8ccc2ace | ths | scsi_completionfn completion, void *opaque)
|
931 | 2e5d83bb | pbrook | { |
932 | 8ccc2ace | ths | SCSIDevice *d; |
933 | 8ccc2ace | ths | SCSIDeviceState *s; |
934 | 274fb0e1 | aliguori | uint64_t nb_sectors; |
935 | 2e5d83bb | pbrook | |
936 | 8ccc2ace | ths | s = (SCSIDeviceState *)qemu_mallocz(sizeof(SCSIDeviceState));
|
937 | 2e5d83bb | pbrook | s->bdrv = bdrv; |
938 | a917d384 | pbrook | s->tcq = tcq; |
939 | 2e5d83bb | pbrook | s->completion = completion; |
940 | 2e5d83bb | pbrook | s->opaque = opaque; |
941 | 2e5d83bb | pbrook | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
|
942 | 7c22dd52 | pbrook | s->cluster_size = 4;
|
943 | 2e5d83bb | pbrook | } else {
|
944 | 7c22dd52 | pbrook | s->cluster_size = 1;
|
945 | 2e5d83bb | pbrook | } |
946 | 274fb0e1 | aliguori | bdrv_get_geometry(s->bdrv, &nb_sectors); |
947 | 274fb0e1 | aliguori | nb_sectors /= s->cluster_size; |
948 | 274fb0e1 | aliguori | if (nb_sectors)
|
949 | 274fb0e1 | aliguori | nb_sectors--; |
950 | 274fb0e1 | aliguori | s->max_lba = nb_sectors; |
951 | fa879c64 | aliguori | strncpy(s->drive_serial_str, drive_get_serial(s->bdrv), |
952 | fa879c64 | aliguori | sizeof(s->drive_serial_str));
|
953 | fa879c64 | aliguori | if (strlen(s->drive_serial_str) == 0) |
954 | 00766a4e | blueswir1 | pstrcpy(s->drive_serial_str, sizeof(s->drive_serial_str), "0"); |
955 | ea8a5d7f | aliguori | qemu_add_vm_change_state_handler(scsi_dma_restart_cb, s); |
956 | 8ccc2ace | ths | d = (SCSIDevice *)qemu_mallocz(sizeof(SCSIDevice));
|
957 | 8ccc2ace | ths | d->state = s; |
958 | 8ccc2ace | ths | d->destroy = scsi_destroy; |
959 | 8ccc2ace | ths | d->send_command = scsi_send_command; |
960 | 8ccc2ace | ths | d->read_data = scsi_read_data; |
961 | 8ccc2ace | ths | d->write_data = scsi_write_data; |
962 | 8ccc2ace | ths | d->cancel_io = scsi_cancel_io; |
963 | 8ccc2ace | ths | d->get_buf = scsi_get_buf; |
964 | 2e5d83bb | pbrook | |
965 | 8ccc2ace | ths | return d;
|
966 | 8ccc2ace | ths | } |