Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 1 | /******************************************************************************* |
| 2 | |
| 3 | AudioScience HPI driver |
Eliot Blennerhassett | 1c073b6 | 2011-07-22 15:52:46 +1200 | [diff] [blame] | 4 | Copyright (C) 1997-2011 AudioScience Inc. <support@audioscience.com> |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of version 2 of the GNU General Public License as |
| 8 | published by the Free Software Foundation; |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; if not, write to the Free Software |
| 17 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | |
| 19 | Common Linux HPI ioctl and module probe/remove functions |
| 20 | *******************************************************************************/ |
| 21 | #define SOURCEFILE_NAME "hpioctl.c" |
| 22 | |
| 23 | #include "hpi_internal.h" |
| 24 | #include "hpimsginit.h" |
| 25 | #include "hpidebug.h" |
| 26 | #include "hpimsgx.h" |
| 27 | #include "hpioctl.h" |
Eliot Blennerhassett | 6d0b898 | 2011-04-05 20:55:47 +1200 | [diff] [blame] | 28 | #include "hpicmn.h" |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 29 | |
| 30 | #include <linux/fs.h> |
| 31 | #include <linux/slab.h> |
| 32 | #include <linux/moduleparam.h> |
| 33 | #include <asm/uaccess.h> |
Eliot Blennerhassett | 3285ea1 | 2011-02-10 17:25:58 +1300 | [diff] [blame] | 34 | #include <linux/pci.h> |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 35 | #include <linux/stringify.h> |
| 36 | |
| 37 | #ifdef MODULE_FIRMWARE |
| 38 | MODULE_FIRMWARE("asihpi/dsp5000.bin"); |
| 39 | MODULE_FIRMWARE("asihpi/dsp6200.bin"); |
| 40 | MODULE_FIRMWARE("asihpi/dsp6205.bin"); |
| 41 | MODULE_FIRMWARE("asihpi/dsp6400.bin"); |
| 42 | MODULE_FIRMWARE("asihpi/dsp6600.bin"); |
| 43 | MODULE_FIRMWARE("asihpi/dsp8700.bin"); |
| 44 | MODULE_FIRMWARE("asihpi/dsp8900.bin"); |
| 45 | #endif |
| 46 | |
| 47 | static int prealloc_stream_buf; |
| 48 | module_param(prealloc_stream_buf, int, S_IRUGO); |
| 49 | MODULE_PARM_DESC(prealloc_stream_buf, |
Eliot Blennerhassett | 3285ea1 | 2011-02-10 17:25:58 +1300 | [diff] [blame] | 50 | "Preallocate size for per-adapter stream buffer"); |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 51 | |
| 52 | /* Allow the debug level to be changed after module load. |
| 53 | E.g. echo 2 > /sys/module/asihpi/parameters/hpiDebugLevel |
| 54 | */ |
| 55 | module_param(hpi_debug_level, int, S_IRUGO | S_IWUSR); |
| 56 | MODULE_PARM_DESC(hpi_debug_level, "debug verbosity 0..5"); |
| 57 | |
| 58 | /* List of adapters found */ |
| 59 | static struct hpi_adapter adapters[HPI_MAX_ADAPTERS]; |
| 60 | |
| 61 | /* Wrapper function to HPI_Message to enable dumping of the |
| 62 | message and response types. |
| 63 | */ |
| 64 | static void hpi_send_recv_f(struct hpi_message *phm, struct hpi_response *phr, |
| 65 | struct file *file) |
| 66 | { |
| 67 | int adapter = phm->adapter_index; |
| 68 | |
| 69 | if ((adapter >= HPI_MAX_ADAPTERS || adapter < 0) |
| 70 | && (phm->object != HPI_OBJ_SUBSYSTEM)) |
| 71 | phr->error = HPI_ERROR_INVALID_OBJ_INDEX; |
| 72 | else |
| 73 | hpi_send_recv_ex(phm, phr, file); |
| 74 | } |
| 75 | |
| 76 | /* This is called from hpifunc.c functions, called by ALSA |
| 77 | * (or other kernel process) In this case there is no file descriptor |
| 78 | * available for the message cache code |
| 79 | */ |
| 80 | void hpi_send_recv(struct hpi_message *phm, struct hpi_response *phr) |
| 81 | { |
| 82 | hpi_send_recv_f(phm, phr, HOWNER_KERNEL); |
| 83 | } |
| 84 | |
| 85 | EXPORT_SYMBOL(hpi_send_recv); |
| 86 | /* for radio-asihpi */ |
| 87 | |
| 88 | int asihpi_hpi_release(struct file *file) |
| 89 | { |
| 90 | struct hpi_message hm; |
| 91 | struct hpi_response hr; |
| 92 | |
| 93 | /* HPI_DEBUG_LOG(INFO,"hpi_release file %p, pid %d\n", file, current->pid); */ |
| 94 | /* close the subsystem just in case the application forgot to. */ |
| 95 | hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, |
| 96 | HPI_SUBSYS_CLOSE); |
| 97 | hpi_send_recv_ex(&hm, &hr, file); |
| 98 | return 0; |
| 99 | } |
| 100 | |
| 101 | long asihpi_hpi_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
| 102 | { |
| 103 | struct hpi_ioctl_linux __user *phpi_ioctl_data; |
| 104 | void __user *puhm; |
| 105 | void __user *puhr; |
| 106 | union hpi_message_buffer_v1 *hm; |
| 107 | union hpi_response_buffer_v1 *hr; |
| 108 | u16 res_max_size; |
| 109 | u32 uncopied_bytes; |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 110 | int err = 0; |
| 111 | |
| 112 | if (cmd != HPI_IOCTL_LINUX) |
| 113 | return -EINVAL; |
| 114 | |
| 115 | hm = kmalloc(sizeof(*hm), GFP_KERNEL); |
| 116 | hr = kmalloc(sizeof(*hr), GFP_KERNEL); |
| 117 | if (!hm || !hr) { |
| 118 | err = -ENOMEM; |
| 119 | goto out; |
| 120 | } |
| 121 | |
| 122 | phpi_ioctl_data = (struct hpi_ioctl_linux __user *)arg; |
| 123 | |
| 124 | /* Read the message and response pointers from user space. */ |
Eliot Blennerhassett | 3285ea1 | 2011-02-10 17:25:58 +1300 | [diff] [blame] | 125 | if (get_user(puhm, &phpi_ioctl_data->phm) |
| 126 | || get_user(puhr, &phpi_ioctl_data->phr)) { |
Kulikov Vasiliy | ec9d04b | 2010-07-28 20:41:56 +0400 | [diff] [blame] | 127 | err = -EFAULT; |
| 128 | goto out; |
| 129 | } |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 130 | |
| 131 | /* Now read the message size and data from user space. */ |
Kulikov Vasiliy | ec9d04b | 2010-07-28 20:41:56 +0400 | [diff] [blame] | 132 | if (get_user(hm->h.size, (u16 __user *)puhm)) { |
| 133 | err = -EFAULT; |
| 134 | goto out; |
| 135 | } |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 136 | if (hm->h.size > sizeof(*hm)) |
| 137 | hm->h.size = sizeof(*hm); |
| 138 | |
Eliot Blennerhassett | 3285ea1 | 2011-02-10 17:25:58 +1300 | [diff] [blame] | 139 | /* printk(KERN_INFO "message size %d\n", hm->h.wSize); */ |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 140 | |
| 141 | uncopied_bytes = copy_from_user(hm, puhm, hm->h.size); |
| 142 | if (uncopied_bytes) { |
| 143 | HPI_DEBUG_LOG(ERROR, "uncopied bytes %d\n", uncopied_bytes); |
| 144 | err = -EFAULT; |
| 145 | goto out; |
| 146 | } |
| 147 | |
Kulikov Vasiliy | ec9d04b | 2010-07-28 20:41:56 +0400 | [diff] [blame] | 148 | if (get_user(res_max_size, (u16 __user *)puhr)) { |
| 149 | err = -EFAULT; |
| 150 | goto out; |
| 151 | } |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 152 | /* printk(KERN_INFO "user response size %d\n", res_max_size); */ |
| 153 | if (res_max_size < sizeof(struct hpi_response_header)) { |
| 154 | HPI_DEBUG_LOG(WARNING, "small res size %d\n", res_max_size); |
| 155 | err = -EFAULT; |
| 156 | goto out; |
| 157 | } |
| 158 | |
Eliot Blennerhassett | 6d0b898 | 2011-04-05 20:55:47 +1200 | [diff] [blame] | 159 | switch (hm->h.function) { |
| 160 | case HPI_SUBSYS_CREATE_ADAPTER: |
| 161 | case HPI_ADAPTER_DELETE: |
| 162 | /* Application must not use these functions! */ |
| 163 | hr->h.size = sizeof(hr->h); |
| 164 | hr->h.error = HPI_ERROR_INVALID_OPERATION; |
| 165 | hr->h.function = hm->h.function; |
| 166 | uncopied_bytes = copy_to_user(puhr, hr, hr->h.size); |
| 167 | if (uncopied_bytes) |
| 168 | err = -EFAULT; |
| 169 | else |
| 170 | err = 0; |
| 171 | goto out; |
| 172 | } |
| 173 | |
Eliot Blennerhassett | 3285ea1 | 2011-02-10 17:25:58 +1300 | [diff] [blame] | 174 | hr->h.size = res_max_size; |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 175 | if (hm->h.object == HPI_OBJ_SUBSYSTEM) { |
Eliot Blennerhassett | 6d0b898 | 2011-04-05 20:55:47 +1200 | [diff] [blame] | 176 | hpi_send_recv_f(&hm->m0, &hr->r0, file); |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 177 | } else { |
| 178 | u16 __user *ptr = NULL; |
| 179 | u32 size = 0; |
Eliot Blennerhassett | 08f984c | 2011-08-02 09:44:24 +1200 | [diff] [blame] | 180 | u32 adapter_present; |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 181 | /* -1=no data 0=read from user mem, 1=write to user mem */ |
| 182 | int wrflag = -1; |
Eliot Blennerhassett | 08f984c | 2011-08-02 09:44:24 +1200 | [diff] [blame] | 183 | struct hpi_adapter *pa; |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 184 | |
Eliot Blennerhassett | 08f984c | 2011-08-02 09:44:24 +1200 | [diff] [blame] | 185 | if (hm->h.adapter_index < HPI_MAX_ADAPTERS) { |
| 186 | pa = &adapters[hm->h.adapter_index]; |
| 187 | adapter_present = pa->type; |
| 188 | } else { |
| 189 | adapter_present = 0; |
| 190 | } |
| 191 | |
| 192 | if (!adapter_present) { |
| 193 | hpi_init_response(&hr->r0, hm->h.object, |
| 194 | hm->h.function, HPI_ERROR_BAD_ADAPTER_NUMBER); |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 195 | |
| 196 | uncopied_bytes = |
| 197 | copy_to_user(puhr, hr, sizeof(hr->h)); |
| 198 | if (uncopied_bytes) |
| 199 | err = -EFAULT; |
| 200 | else |
| 201 | err = 0; |
| 202 | goto out; |
| 203 | } |
| 204 | |
Eliot Blennerhassett | 767cd36 | 2011-07-27 20:03:51 +1200 | [diff] [blame] | 205 | if (mutex_lock_interruptible(&pa->mutex)) { |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 206 | err = -EINTR; |
| 207 | goto out; |
| 208 | } |
| 209 | |
| 210 | /* Dig out any pointers embedded in the message. */ |
| 211 | switch (hm->h.function) { |
| 212 | case HPI_OSTREAM_WRITE: |
| 213 | case HPI_ISTREAM_READ:{ |
| 214 | /* Yes, sparse, this is correct. */ |
| 215 | ptr = (u16 __user *)hm->m0.u.d.u.data.pb_data; |
| 216 | size = hm->m0.u.d.u.data.data_size; |
| 217 | |
| 218 | /* Allocate buffer according to application request. |
| 219 | ?Is it better to alloc/free for the duration |
| 220 | of the transaction? |
| 221 | */ |
| 222 | if (pa->buffer_size < size) { |
| 223 | HPI_DEBUG_LOG(DEBUG, |
Eliot Blennerhassett | 3285ea1 | 2011-02-10 17:25:58 +1300 | [diff] [blame] | 224 | "Realloc adapter %d stream " |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 225 | "buffer from %zd to %d\n", |
| 226 | hm->h.adapter_index, |
| 227 | pa->buffer_size, size); |
| 228 | if (pa->p_buffer) { |
| 229 | pa->buffer_size = 0; |
| 230 | vfree(pa->p_buffer); |
| 231 | } |
| 232 | pa->p_buffer = vmalloc(size); |
| 233 | if (pa->p_buffer) |
| 234 | pa->buffer_size = size; |
| 235 | else { |
| 236 | HPI_DEBUG_LOG(ERROR, |
| 237 | "HPI could not allocate " |
| 238 | "stream buffer size %d\n", |
| 239 | size); |
| 240 | |
Eliot Blennerhassett | 767cd36 | 2011-07-27 20:03:51 +1200 | [diff] [blame] | 241 | mutex_unlock(&pa->mutex); |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 242 | err = -EINVAL; |
| 243 | goto out; |
| 244 | } |
| 245 | } |
| 246 | |
| 247 | hm->m0.u.d.u.data.pb_data = pa->p_buffer; |
| 248 | if (hm->h.function == HPI_ISTREAM_READ) |
| 249 | /* from card, WRITE to user mem */ |
| 250 | wrflag = 1; |
| 251 | else |
| 252 | wrflag = 0; |
| 253 | break; |
| 254 | } |
| 255 | |
| 256 | default: |
| 257 | size = 0; |
| 258 | break; |
| 259 | } |
| 260 | |
| 261 | if (size && (wrflag == 0)) { |
| 262 | uncopied_bytes = |
| 263 | copy_from_user(pa->p_buffer, ptr, size); |
| 264 | if (uncopied_bytes) |
| 265 | HPI_DEBUG_LOG(WARNING, |
Eliot Blennerhassett | 3285ea1 | 2011-02-10 17:25:58 +1300 | [diff] [blame] | 266 | "Missed %d of %d " |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 267 | "bytes from user\n", uncopied_bytes, |
| 268 | size); |
| 269 | } |
| 270 | |
| 271 | hpi_send_recv_f(&hm->m0, &hr->r0, file); |
| 272 | |
| 273 | if (size && (wrflag == 1)) { |
| 274 | uncopied_bytes = |
| 275 | copy_to_user(ptr, pa->p_buffer, size); |
| 276 | if (uncopied_bytes) |
| 277 | HPI_DEBUG_LOG(WARNING, |
Eliot Blennerhassett | 3285ea1 | 2011-02-10 17:25:58 +1300 | [diff] [blame] | 278 | "Missed %d of %d " "bytes to user\n", |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 279 | uncopied_bytes, size); |
| 280 | } |
| 281 | |
Eliot Blennerhassett | 767cd36 | 2011-07-27 20:03:51 +1200 | [diff] [blame] | 282 | mutex_unlock(&pa->mutex); |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 283 | } |
| 284 | |
| 285 | /* on return response size must be set */ |
| 286 | /*printk(KERN_INFO "response size %d\n", hr->h.wSize); */ |
| 287 | |
| 288 | if (!hr->h.size) { |
| 289 | HPI_DEBUG_LOG(ERROR, "response zero size\n"); |
| 290 | err = -EFAULT; |
| 291 | goto out; |
| 292 | } |
| 293 | |
| 294 | if (hr->h.size > res_max_size) { |
| 295 | HPI_DEBUG_LOG(ERROR, "response too big %d %d\n", hr->h.size, |
| 296 | res_max_size); |
Eliot Blennerhassett | 3285ea1 | 2011-02-10 17:25:58 +1300 | [diff] [blame] | 297 | hr->h.error = HPI_ERROR_RESPONSE_BUFFER_TOO_SMALL; |
| 298 | hr->h.specific_error = hr->h.size; |
| 299 | hr->h.size = sizeof(hr->h); |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 300 | } |
| 301 | |
| 302 | uncopied_bytes = copy_to_user(puhr, hr, hr->h.size); |
| 303 | if (uncopied_bytes) { |
| 304 | HPI_DEBUG_LOG(ERROR, "uncopied bytes %d\n", uncopied_bytes); |
| 305 | err = -EFAULT; |
| 306 | goto out; |
| 307 | } |
| 308 | |
| 309 | out: |
| 310 | kfree(hm); |
| 311 | kfree(hr); |
| 312 | return err; |
| 313 | } |
| 314 | |
| 315 | int __devinit asihpi_adapter_probe(struct pci_dev *pci_dev, |
| 316 | const struct pci_device_id *pci_id) |
| 317 | { |
Eliot Blennerhassett | 42258da | 2011-04-05 20:55:48 +1200 | [diff] [blame] | 318 | int idx, nm; |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 319 | unsigned int memlen; |
| 320 | struct hpi_message hm; |
| 321 | struct hpi_response hr; |
| 322 | struct hpi_adapter adapter; |
| 323 | struct hpi_pci pci; |
| 324 | |
| 325 | memset(&adapter, 0, sizeof(adapter)); |
| 326 | |
Eliot Blennerhassett | 3285ea1 | 2011-02-10 17:25:58 +1300 | [diff] [blame] | 327 | dev_printk(KERN_DEBUG, &pci_dev->dev, |
| 328 | "probe %04x:%04x,%04x:%04x,%04x\n", pci_dev->vendor, |
| 329 | pci_dev->device, pci_dev->subsystem_vendor, |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 330 | pci_dev->subsystem_device, pci_dev->devfn); |
| 331 | |
Eliot Blennerhassett | 3285ea1 | 2011-02-10 17:25:58 +1300 | [diff] [blame] | 332 | if (pci_enable_device(pci_dev) < 0) { |
| 333 | dev_printk(KERN_ERR, &pci_dev->dev, |
| 334 | "pci_enable_device failed, disabling device\n"); |
| 335 | return -EIO; |
| 336 | } |
| 337 | |
| 338 | pci_set_master(pci_dev); /* also sets latency timer if < 16 */ |
| 339 | |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 340 | hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, |
| 341 | HPI_SUBSYS_CREATE_ADAPTER); |
| 342 | hpi_init_response(&hr, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_CREATE_ADAPTER, |
| 343 | HPI_ERROR_PROCESSING_MESSAGE); |
| 344 | |
Eliot Blennerhassett | 3285ea1 | 2011-02-10 17:25:58 +1300 | [diff] [blame] | 345 | hm.adapter_index = HPI_ADAPTER_INDEX_INVALID; |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 346 | |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 347 | adapter.pci = pci_dev; |
| 348 | |
| 349 | nm = HPI_MAX_ADAPTER_MEM_SPACES; |
| 350 | |
| 351 | for (idx = 0; idx < nm; idx++) { |
Eliot Blennerhassett | 42258da | 2011-04-05 20:55:48 +1200 | [diff] [blame] | 352 | HPI_DEBUG_LOG(INFO, "resource %d %pR\n", idx, |
| 353 | &pci_dev->resource[idx]); |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 354 | |
| 355 | if (pci_resource_flags(pci_dev, idx) & IORESOURCE_MEM) { |
| 356 | memlen = pci_resource_len(pci_dev, idx); |
| 357 | adapter.ap_remapped_mem_base[idx] = |
| 358 | ioremap(pci_resource_start(pci_dev, idx), |
| 359 | memlen); |
| 360 | if (!adapter.ap_remapped_mem_base[idx]) { |
| 361 | HPI_DEBUG_LOG(ERROR, |
| 362 | "ioremap failed, aborting\n"); |
| 363 | /* unmap previously mapped pci mem space */ |
| 364 | goto err; |
| 365 | } |
| 366 | } |
| 367 | |
| 368 | pci.ap_mem_base[idx] = adapter.ap_remapped_mem_base[idx]; |
| 369 | } |
| 370 | |
Eliot Blennerhassett | 3285ea1 | 2011-02-10 17:25:58 +1300 | [diff] [blame] | 371 | pci.pci_dev = pci_dev; |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 372 | hm.u.s.resource.bus_type = HPI_BUS_PCI; |
| 373 | hm.u.s.resource.r.pci = &pci; |
| 374 | |
| 375 | /* call CreateAdapterObject on the relevant hpi module */ |
| 376 | hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); |
| 377 | if (hr.error) |
| 378 | goto err; |
| 379 | |
| 380 | if (prealloc_stream_buf) { |
| 381 | adapter.p_buffer = vmalloc(prealloc_stream_buf); |
| 382 | if (!adapter.p_buffer) { |
| 383 | HPI_DEBUG_LOG(ERROR, |
| 384 | "HPI could not allocate " |
| 385 | "kernel buffer size %d\n", |
| 386 | prealloc_stream_buf); |
| 387 | goto err; |
| 388 | } |
| 389 | } |
| 390 | |
| 391 | adapter.index = hr.u.s.adapter_index; |
Eliot Blennerhassett | 2f918a6 | 2011-02-10 17:26:09 +1300 | [diff] [blame] | 392 | adapter.type = hr.u.s.adapter_type; |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 393 | |
Eliot Blennerhassett | 6d0b898 | 2011-04-05 20:55:47 +1200 | [diff] [blame] | 394 | hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, |
| 395 | HPI_ADAPTER_OPEN); |
| 396 | hm.adapter_index = adapter.index; |
| 397 | hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); |
| 398 | |
| 399 | if (hr.error) |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 400 | goto err; |
| 401 | |
| 402 | adapter.snd_card_asihpi = NULL; |
| 403 | /* WARNING can't init mutex in 'adapter' |
| 404 | * and then copy it to adapters[] ?!?! |
| 405 | */ |
Eliot Blennerhassett | 6d0b898 | 2011-04-05 20:55:47 +1200 | [diff] [blame] | 406 | adapters[adapter.index] = adapter; |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 407 | mutex_init(&adapters[adapter.index].mutex); |
| 408 | pci_set_drvdata(pci_dev, &adapters[adapter.index]); |
| 409 | |
Eliot Blennerhassett | 3285ea1 | 2011-02-10 17:25:58 +1300 | [diff] [blame] | 410 | dev_printk(KERN_INFO, &pci_dev->dev, |
| 411 | "probe succeeded for ASI%04X HPI index %d\n", adapter.type, |
| 412 | adapter.index); |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 413 | |
| 414 | return 0; |
| 415 | |
| 416 | err: |
| 417 | for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) { |
| 418 | if (adapter.ap_remapped_mem_base[idx]) { |
| 419 | iounmap(adapter.ap_remapped_mem_base[idx]); |
| 420 | adapter.ap_remapped_mem_base[idx] = NULL; |
| 421 | } |
| 422 | } |
| 423 | |
| 424 | if (adapter.p_buffer) { |
| 425 | adapter.buffer_size = 0; |
| 426 | vfree(adapter.p_buffer); |
| 427 | } |
| 428 | |
| 429 | HPI_DEBUG_LOG(ERROR, "adapter_probe failed\n"); |
| 430 | return -ENODEV; |
| 431 | } |
| 432 | |
| 433 | void __devexit asihpi_adapter_remove(struct pci_dev *pci_dev) |
| 434 | { |
| 435 | int idx; |
| 436 | struct hpi_message hm; |
| 437 | struct hpi_response hr; |
| 438 | struct hpi_adapter *pa; |
Joe Perches | 5dbea6b | 2010-11-15 12:14:02 -0800 | [diff] [blame] | 439 | pa = pci_get_drvdata(pci_dev); |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 440 | |
Eliot Blennerhassett | 6d0b898 | 2011-04-05 20:55:47 +1200 | [diff] [blame] | 441 | hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, |
| 442 | HPI_ADAPTER_DELETE); |
| 443 | hm.adapter_index = pa->index; |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 444 | hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); |
| 445 | |
| 446 | /* unmap PCI memory space, mapped during device init. */ |
| 447 | for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) { |
| 448 | if (pa->ap_remapped_mem_base[idx]) { |
| 449 | iounmap(pa->ap_remapped_mem_base[idx]); |
| 450 | pa->ap_remapped_mem_base[idx] = NULL; |
| 451 | } |
| 452 | } |
| 453 | |
Eliot Blennerhassett | c188dec | 2011-02-10 17:26:18 +1300 | [diff] [blame] | 454 | if (pa->p_buffer) |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 455 | vfree(pa->p_buffer); |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 456 | |
| 457 | pci_set_drvdata(pci_dev, NULL); |
Eliot Blennerhassett | 3285ea1 | 2011-02-10 17:25:58 +1300 | [diff] [blame] | 458 | if (1) |
| 459 | dev_printk(KERN_INFO, &pci_dev->dev, |
| 460 | "remove %04x:%04x,%04x:%04x,%04x," " HPI index %d.\n", |
| 461 | pci_dev->vendor, pci_dev->device, |
| 462 | pci_dev->subsystem_vendor, pci_dev->subsystem_device, |
| 463 | pci_dev->devfn, pa->index); |
Eliot Blennerhassett | c188dec | 2011-02-10 17:26:18 +1300 | [diff] [blame] | 464 | |
| 465 | memset(pa, 0, sizeof(*pa)); |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 466 | } |
| 467 | |
| 468 | void __init asihpi_init(void) |
| 469 | { |
| 470 | struct hpi_message hm; |
| 471 | struct hpi_response hr; |
| 472 | |
| 473 | memset(adapters, 0, sizeof(adapters)); |
| 474 | |
Eliot Blennerhassett | 1dd6aaa | 2010-07-06 08:37:07 +1200 | [diff] [blame] | 475 | printk(KERN_INFO "ASIHPI driver " HPI_VER_STRING "\n"); |
Eliot Blennerhassett | 719f82d | 2010-04-21 18:17:39 +0200 | [diff] [blame] | 476 | |
| 477 | hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, |
| 478 | HPI_SUBSYS_DRIVER_LOAD); |
| 479 | hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); |
| 480 | } |
| 481 | |
| 482 | void asihpi_exit(void) |
| 483 | { |
| 484 | struct hpi_message hm; |
| 485 | struct hpi_response hr; |
| 486 | |
| 487 | hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, |
| 488 | HPI_SUBSYS_DRIVER_UNLOAD); |
| 489 | hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); |
| 490 | } |