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| Rev 4440 | Rev 4442 | ||
|---|---|---|---|
| Line 56... | Line 56... | ||
| 56 | 56 | ||
| 57 | enum { |
57 | enum { |
| 58 | STATUS_FAILURE = 0 |
58 | STATUS_FAILURE = 0 |
| 59 | }; |
59 | }; |
| 60 | 60 | ||
| - | 61 | enum { |
|
| - | 62 | MAX_DISKS = 2 |
|
| - | 63 | }; |
|
| - | 64 | ||
| 61 | typedef struct { |
65 | typedef struct { |
| 62 | uint32_t offset_lo; |
66 | uint32_t offset_lo; |
| 63 | uint32_t pad0; |
67 | uint32_t pad0; |
| 64 | uint32_t offset_hi; |
68 | uint32_t offset_hi; |
| 65 | uint32_t pad1; |
69 | uint32_t pad1; |
| Line 83... | Line 87... | ||
| 83 | static size_t comm_size; |
87 | static size_t comm_size; |
| 84 | 88 | ||
| 85 | static uintptr_t dev_physical = 0x13000000; |
89 | static uintptr_t dev_physical = 0x13000000; |
| 86 | static gxe_bd_t *dev; |
90 | static gxe_bd_t *dev; |
| 87 | 91 | ||
| 88 | static uint32_t disk_id = 0; |
92 | static dev_handle_t dev_handle[MAX_DISKS]; |
| 89 | 93 | ||
| 90 | static atomic_t dev_futex = FUTEX_INITIALIZER; |
94 | static atomic_t dev_futex = FUTEX_INITIALIZER; |
| 91 | 95 | ||
| 92 | static int gxe_bd_init(void); |
96 | static int gxe_bd_init(void); |
| 93 | static void gxe_bd_connection(ipc_callid_t iid, ipc_call_t *icall); |
97 | static void gxe_bd_connection(ipc_callid_t iid, ipc_call_t *icall); |
| 94 | static int gx_bd_rdwr(ipcarg_t method, off_t offset, off_t size, void *buf); |
98 | static int gx_bd_rdwr(int disk_id, ipcarg_t method, off_t offset, off_t size, |
| - | 99 | void *buf); |
|
| 95 | static int gxe_bd_read_block(uint64_t offset, size_t size, void *buf); |
100 | static int gxe_bd_read_block(int disk_id, uint64_t offset, size_t size, |
| - | 101 | void *buf); |
|
| 96 | static int gxe_bd_write_block(uint64_t offset, size_t size, const void *buf); |
102 | static int gxe_bd_write_block(int disk_id, uint64_t offset, size_t size, |
| - | 103 | const void *buf); |
|
| 97 | 104 | ||
| 98 | int main(int argc, char **argv) |
105 | int main(int argc, char **argv) |
| 99 | { |
106 | { |
| 100 | printf(NAME ": GXemul disk driver\n"); |
107 | printf(NAME ": GXemul disk driver\n"); |
| 101 | 108 | ||
| Line 109... | Line 116... | ||
| 109 | return 0; |
116 | return 0; |
| 110 | } |
117 | } |
| 111 | 118 | ||
| 112 | static int gxe_bd_init(void) |
119 | static int gxe_bd_init(void) |
| 113 | { |
120 | { |
| 114 | dev_handle_t dev_handle; |
- | |
| 115 | void *vaddr; |
121 | void *vaddr; |
| 116 | int rc; |
122 | int rc, i; |
| - | 123 | char name[16]; |
|
| 117 | 124 | ||
| 118 | rc = devmap_driver_register(NAME, gxe_bd_connection); |
125 | rc = devmap_driver_register(NAME, gxe_bd_connection); |
| 119 | if (rc < 0) { |
126 | if (rc < 0) { |
| 120 | printf(NAME ": Unable to register driver.\n"); |
127 | printf(NAME ": Unable to register driver.\n"); |
| 121 | return rc; |
128 | return rc; |
| Line 127... | Line 134... | ||
| 127 | return rc; |
134 | return rc; |
| 128 | } |
135 | } |
| 129 | 136 | ||
| 130 | dev = vaddr; |
137 | dev = vaddr; |
| 131 | 138 | ||
| - | 139 | for (i = 0; i < MAX_DISKS; i++) { |
|
| - | 140 | snprintf(name, 16, "disk%d", i); |
|
| 132 | rc = devmap_device_register("disk0", &dev_handle); |
141 | rc = devmap_device_register(name, &dev_handle[i]); |
| 133 | if (rc != EOK) { |
142 | if (rc != EOK) { |
| 134 | devmap_hangup_phone(DEVMAP_DRIVER); |
143 | devmap_hangup_phone(DEVMAP_DRIVER); |
| 135 | printf(NAME ": Unable to register device.\n"); |
144 | printf(NAME ": Unable to register device %s.\n", |
| - | 145 | name); |
|
| 136 | return rc; |
146 | return rc; |
| - | 147 | } |
|
| 137 | } |
148 | } |
| 138 | 149 | ||
| 139 | return EOK; |
150 | return EOK; |
| 140 | } |
151 | } |
| 141 | 152 | ||
| Line 143... | Line 154... | ||
| 143 | { |
154 | { |
| 144 | void *fs_va = NULL; |
155 | void *fs_va = NULL; |
| 145 | ipc_callid_t callid; |
156 | ipc_callid_t callid; |
| 146 | ipc_call_t call; |
157 | ipc_call_t call; |
| 147 | ipcarg_t method; |
158 | ipcarg_t method; |
| - | 159 | dev_handle_t dh; |
|
| 148 | int flags; |
160 | int flags; |
| 149 | int retval; |
161 | int retval; |
| 150 | off_t idx; |
162 | off_t idx; |
| 151 | off_t size; |
163 | off_t size; |
| - | 164 | int disk_id, i; |
|
| - | 165 | ||
| - | 166 | /* Get the device handle. */ |
|
| - | 167 | dh = IPC_GET_ARG1(*icall); |
|
| - | 168 | ||
| - | 169 | /* Determine which disk device is the client connecting to. */ |
|
| - | 170 | disk_id = -1; |
|
| - | 171 | for (i = 0; i < MAX_DISKS; i++) |
|
| - | 172 | if (dev_handle[i] == dh) |
|
| - | 173 | disk_id = i; |
|
| - | 174 | ||
| - | 175 | if (disk_id < 0) { |
|
| - | 176 | ipc_answer_0(iid, EINVAL); |
|
| - | 177 | return; |
|
| - | 178 | } |
|
| 152 | 179 | ||
| 153 | /* Answer the IPC_M_CONNECT_ME_TO call. */ |
180 | /* Answer the IPC_M_CONNECT_ME_TO call. */ |
| 154 | ipc_answer_0(iid, EOK); |
181 | ipc_answer_0(iid, EOK); |
| 155 | 182 | ||
| 156 | if (!ipc_share_out_receive(&callid, &comm_size, &flags)) { |
183 | if (!ipc_share_out_receive(&callid, &comm_size, &flags)) { |
| Line 180... | Line 207... | ||
| 180 | size = IPC_GET_ARG2(call); |
207 | size = IPC_GET_ARG2(call); |
| 181 | if (size > comm_size) { |
208 | if (size > comm_size) { |
| 182 | retval = EINVAL; |
209 | retval = EINVAL; |
| 183 | break; |
210 | break; |
| 184 | } |
211 | } |
| 185 | retval = gx_bd_rdwr(method, idx * size, size, fs_va); |
212 | retval = gx_bd_rdwr(disk_id, method, idx * size, |
| - | 213 | size, fs_va); |
|
| 186 | break; |
214 | break; |
| 187 | default: |
215 | default: |
| 188 | retval = EINVAL; |
216 | retval = EINVAL; |
| 189 | break; |
217 | break; |
| 190 | } |
218 | } |
| 191 | ipc_answer_0(callid, retval); |
219 | ipc_answer_0(callid, retval); |
| 192 | } |
220 | } |
| 193 | } |
221 | } |
| 194 | 222 | ||
| 195 | static int gx_bd_rdwr(ipcarg_t method, off_t offset, off_t size, void *buf) |
223 | static int gx_bd_rdwr(int disk_id, ipcarg_t method, off_t offset, off_t size, |
| - | 224 | void *buf) |
|
| 196 | { |
225 | { |
| 197 | int rc; |
226 | int rc; |
| 198 | size_t now; |
227 | size_t now; |
| 199 | 228 | ||
| 200 | while (size > 0) { |
229 | while (size > 0) { |
| 201 | now = size < block_size ? size : block_size; |
230 | now = size < block_size ? size : block_size; |
| 202 | 231 | ||
| 203 | if (method == BD_READ_BLOCK) |
232 | if (method == BD_READ_BLOCK) |
| 204 | rc = gxe_bd_read_block(offset, now, buf); |
233 | rc = gxe_bd_read_block(disk_id, offset, now, buf); |
| 205 | else |
234 | else |
| 206 | rc = gxe_bd_write_block(offset, now, buf); |
235 | rc = gxe_bd_write_block(disk_id, offset, now, buf); |
| 207 | 236 | ||
| 208 | if (rc != EOK) |
237 | if (rc != EOK) |
| 209 | return rc; |
238 | return rc; |
| 210 | 239 | ||
| 211 | buf += block_size; |
240 | buf += block_size; |
| Line 218... | Line 247... | ||
| 218 | } |
247 | } |
| 219 | 248 | ||
| 220 | return EOK; |
249 | return EOK; |
| 221 | } |
250 | } |
| 222 | 251 | ||
| 223 | static int gxe_bd_read_block(uint64_t offset, size_t size, void *buf) |
252 | static int gxe_bd_read_block(int disk_id, uint64_t offset, size_t size, |
| - | 253 | void *buf) |
|
| 224 | { |
254 | { |
| 225 | uint32_t status; |
255 | uint32_t status; |
| 226 | size_t i; |
256 | size_t i; |
| 227 | uint32_t w; |
257 | uint32_t w; |
| 228 | 258 | ||
| Line 243... | Line 273... | ||
| 243 | 273 | ||
| 244 | futex_up(&dev_futex); |
274 | futex_up(&dev_futex); |
| 245 | return EOK; |
275 | return EOK; |
| 246 | } |
276 | } |
| 247 | 277 | ||
| 248 | static int gxe_bd_write_block(uint64_t offset, size_t size, const void *buf) |
278 | static int gxe_bd_write_block(int disk_id, uint64_t offset, size_t size, |
| - | 279 | const void *buf) |
|
| 249 | { |
280 | { |
| 250 | uint32_t status; |
281 | uint32_t status; |
| 251 | size_t i; |
282 | size_t i; |
| 252 | uint32_t w; |
- | |
| 253 | 283 | ||
| 254 | for (i = 0; i < size; i++) { |
284 | for (i = 0; i < size; i++) { |
| 255 | pio_write_8(&dev->buffer[i], ((const uint8_t *) buf)[i]); |
285 | pio_write_8(&dev->buffer[i], ((const uint8_t *) buf)[i]); |
| 256 | } |
286 | } |
| 257 | 287 | ||