Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | btaudio - bt878 audio dma driver for linux 2.4.x |
| 3 | |
| 4 | (c) 2000-2002 Gerd Knorr <kraxel@bytesex.org> |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 19 | |
| 20 | */ |
| 21 | |
| 22 | #include <linux/module.h> |
| 23 | #include <linux/errno.h> |
| 24 | #include <linux/pci.h> |
| 25 | #include <linux/sched.h> |
| 26 | #include <linux/signal.h> |
| 27 | #include <linux/types.h> |
| 28 | #include <linux/interrupt.h> |
| 29 | #include <linux/init.h> |
| 30 | #include <linux/poll.h> |
| 31 | #include <linux/sound.h> |
| 32 | #include <linux/soundcard.h> |
| 33 | #include <linux/slab.h> |
| 34 | #include <linux/kdev_t.h> |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 35 | #include <linux/mutex.h> |
| 36 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | #include <asm/uaccess.h> |
| 38 | #include <asm/io.h> |
| 39 | |
| 40 | |
| 41 | /* mmio access */ |
| 42 | #define btwrite(dat,adr) writel((dat), (bta->mmio+(adr))) |
| 43 | #define btread(adr) readl(bta->mmio+(adr)) |
| 44 | |
| 45 | #define btand(dat,adr) btwrite((dat) & btread(adr), adr) |
| 46 | #define btor(dat,adr) btwrite((dat) | btread(adr), adr) |
| 47 | #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr) |
| 48 | |
| 49 | /* registers (shifted because bta->mmio is long) */ |
| 50 | #define REG_INT_STAT (0x100 >> 2) |
| 51 | #define REG_INT_MASK (0x104 >> 2) |
| 52 | #define REG_GPIO_DMA_CTL (0x10c >> 2) |
| 53 | #define REG_PACKET_LEN (0x110 >> 2) |
| 54 | #define REG_RISC_STRT_ADD (0x114 >> 2) |
| 55 | #define REG_RISC_COUNT (0x120 >> 2) |
| 56 | |
| 57 | /* IRQ bits - REG_INT_(STAT|MASK) */ |
| 58 | #define IRQ_SCERR (1 << 19) |
| 59 | #define IRQ_OCERR (1 << 18) |
| 60 | #define IRQ_PABORT (1 << 17) |
| 61 | #define IRQ_RIPERR (1 << 16) |
| 62 | #define IRQ_PPERR (1 << 15) |
| 63 | #define IRQ_FDSR (1 << 14) |
| 64 | #define IRQ_FTRGT (1 << 13) |
| 65 | #define IRQ_FBUS (1 << 12) |
| 66 | #define IRQ_RISCI (1 << 11) |
| 67 | #define IRQ_OFLOW (1 << 3) |
| 68 | |
| 69 | #define IRQ_BTAUDIO (IRQ_SCERR | IRQ_OCERR | IRQ_PABORT | IRQ_RIPERR |\ |
| 70 | IRQ_PPERR | IRQ_FDSR | IRQ_FTRGT | IRQ_FBUS |\ |
| 71 | IRQ_RISCI) |
| 72 | |
| 73 | /* REG_GPIO_DMA_CTL bits */ |
| 74 | #define DMA_CTL_A_PWRDN (1 << 26) |
| 75 | #define DMA_CTL_DA_SBR (1 << 14) |
| 76 | #define DMA_CTL_DA_ES2 (1 << 13) |
| 77 | #define DMA_CTL_ACAP_EN (1 << 4) |
| 78 | #define DMA_CTL_RISC_EN (1 << 1) |
| 79 | #define DMA_CTL_FIFO_EN (1 << 0) |
| 80 | |
| 81 | /* RISC instructions */ |
| 82 | #define RISC_WRITE (0x01 << 28) |
| 83 | #define RISC_JUMP (0x07 << 28) |
| 84 | #define RISC_SYNC (0x08 << 28) |
| 85 | |
| 86 | /* RISC bits */ |
| 87 | #define RISC_WR_SOL (1 << 27) |
| 88 | #define RISC_WR_EOL (1 << 26) |
| 89 | #define RISC_IRQ (1 << 24) |
| 90 | #define RISC_SYNC_RESYNC (1 << 15) |
| 91 | #define RISC_SYNC_FM1 0x06 |
| 92 | #define RISC_SYNC_VRO 0x0c |
| 93 | |
| 94 | #define HWBASE_AD (448000) |
| 95 | |
| 96 | /* -------------------------------------------------------------- */ |
| 97 | |
| 98 | struct btaudio { |
| 99 | /* linked list */ |
| 100 | struct btaudio *next; |
| 101 | |
| 102 | /* device info */ |
| 103 | int dsp_digital; |
| 104 | int dsp_analog; |
| 105 | int mixer_dev; |
| 106 | struct pci_dev *pci; |
| 107 | unsigned int irq; |
| 108 | unsigned long mem; |
| 109 | unsigned long __iomem *mmio; |
| 110 | |
| 111 | /* locking */ |
| 112 | int users; |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 113 | struct mutex lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | |
| 115 | /* risc instructions */ |
| 116 | unsigned int risc_size; |
| 117 | unsigned long *risc_cpu; |
| 118 | dma_addr_t risc_dma; |
| 119 | |
| 120 | /* audio data */ |
| 121 | unsigned int buf_size; |
| 122 | unsigned char *buf_cpu; |
| 123 | dma_addr_t buf_dma; |
| 124 | |
| 125 | /* buffer setup */ |
| 126 | int line_bytes; |
| 127 | int line_count; |
| 128 | int block_bytes; |
| 129 | int block_count; |
| 130 | |
| 131 | /* read fifo management */ |
| 132 | int recording; |
| 133 | int dma_block; |
| 134 | int read_offset; |
| 135 | int read_count; |
| 136 | wait_queue_head_t readq; |
| 137 | |
| 138 | /* settings */ |
| 139 | int gain[3]; |
| 140 | int source; |
| 141 | int bits; |
| 142 | int decimation; |
| 143 | int mixcount; |
| 144 | int sampleshift; |
| 145 | int channels; |
| 146 | int analog; |
| 147 | int rate; |
| 148 | }; |
| 149 | |
| 150 | struct cardinfo { |
| 151 | char *name; |
| 152 | int rate; |
| 153 | }; |
| 154 | |
| 155 | static struct btaudio *btaudios; |
| 156 | static unsigned int debug; |
| 157 | static unsigned int irq_debug; |
| 158 | |
| 159 | /* -------------------------------------------------------------- */ |
| 160 | |
| 161 | #define BUF_DEFAULT 128*1024 |
| 162 | #define BUF_MIN 8192 |
| 163 | |
| 164 | static int alloc_buffer(struct btaudio *bta) |
| 165 | { |
| 166 | if (NULL == bta->buf_cpu) { |
| 167 | for (bta->buf_size = BUF_DEFAULT; bta->buf_size >= BUF_MIN; |
| 168 | bta->buf_size = bta->buf_size >> 1) { |
| 169 | bta->buf_cpu = pci_alloc_consistent |
| 170 | (bta->pci, bta->buf_size, &bta->buf_dma); |
| 171 | if (NULL != bta->buf_cpu) |
| 172 | break; |
| 173 | } |
| 174 | if (NULL == bta->buf_cpu) |
| 175 | return -ENOMEM; |
| 176 | memset(bta->buf_cpu,0,bta->buf_size); |
| 177 | } |
| 178 | if (NULL == bta->risc_cpu) { |
| 179 | bta->risc_size = PAGE_SIZE; |
| 180 | bta->risc_cpu = pci_alloc_consistent |
| 181 | (bta->pci, bta->risc_size, &bta->risc_dma); |
| 182 | if (NULL == bta->risc_cpu) { |
| 183 | pci_free_consistent(bta->pci, bta->buf_size, bta->buf_cpu, bta->buf_dma); |
| 184 | bta->buf_cpu = NULL; |
| 185 | return -ENOMEM; |
| 186 | } |
| 187 | } |
| 188 | return 0; |
| 189 | } |
| 190 | |
| 191 | static void free_buffer(struct btaudio *bta) |
| 192 | { |
| 193 | if (NULL != bta->buf_cpu) { |
| 194 | pci_free_consistent(bta->pci, bta->buf_size, |
| 195 | bta->buf_cpu, bta->buf_dma); |
| 196 | bta->buf_cpu = NULL; |
| 197 | } |
| 198 | if (NULL != bta->risc_cpu) { |
| 199 | pci_free_consistent(bta->pci, bta->risc_size, |
| 200 | bta->risc_cpu, bta->risc_dma); |
| 201 | bta->risc_cpu = NULL; |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | static int make_risc(struct btaudio *bta) |
| 206 | { |
| 207 | int rp, bp, line, block; |
| 208 | unsigned long risc; |
| 209 | |
| 210 | bta->block_bytes = bta->buf_size >> 4; |
| 211 | bta->block_count = 1 << 4; |
| 212 | bta->line_bytes = bta->block_bytes; |
| 213 | bta->line_count = bta->block_count; |
| 214 | while (bta->line_bytes > 4095) { |
| 215 | bta->line_bytes >>= 1; |
| 216 | bta->line_count <<= 1; |
| 217 | } |
| 218 | if (bta->line_count > 255) |
| 219 | return -EINVAL; |
| 220 | if (debug) |
| 221 | printk(KERN_DEBUG |
| 222 | "btaudio: bufsize=%d - bs=%d bc=%d - ls=%d, lc=%d\n", |
| 223 | bta->buf_size,bta->block_bytes,bta->block_count, |
| 224 | bta->line_bytes,bta->line_count); |
| 225 | rp = 0; bp = 0; |
| 226 | block = 0; |
| 227 | bta->risc_cpu[rp++] = cpu_to_le32(RISC_SYNC|RISC_SYNC_FM1); |
| 228 | bta->risc_cpu[rp++] = cpu_to_le32(0); |
| 229 | for (line = 0; line < bta->line_count; line++) { |
| 230 | risc = RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL; |
| 231 | risc |= bta->line_bytes; |
| 232 | if (0 == (bp & (bta->block_bytes-1))) { |
| 233 | risc |= RISC_IRQ; |
| 234 | risc |= (block & 0x0f) << 16; |
| 235 | risc |= (~block & 0x0f) << 20; |
| 236 | block++; |
| 237 | } |
| 238 | bta->risc_cpu[rp++] = cpu_to_le32(risc); |
| 239 | bta->risc_cpu[rp++] = cpu_to_le32(bta->buf_dma + bp); |
| 240 | bp += bta->line_bytes; |
| 241 | } |
| 242 | bta->risc_cpu[rp++] = cpu_to_le32(RISC_SYNC|RISC_SYNC_VRO); |
| 243 | bta->risc_cpu[rp++] = cpu_to_le32(0); |
| 244 | bta->risc_cpu[rp++] = cpu_to_le32(RISC_JUMP); |
| 245 | bta->risc_cpu[rp++] = cpu_to_le32(bta->risc_dma); |
| 246 | return 0; |
| 247 | } |
| 248 | |
| 249 | static int start_recording(struct btaudio *bta) |
| 250 | { |
| 251 | int ret; |
| 252 | |
| 253 | if (0 != (ret = alloc_buffer(bta))) |
| 254 | return ret; |
| 255 | if (0 != (ret = make_risc(bta))) |
| 256 | return ret; |
| 257 | |
| 258 | btwrite(bta->risc_dma, REG_RISC_STRT_ADD); |
| 259 | btwrite((bta->line_count << 16) | bta->line_bytes, |
| 260 | REG_PACKET_LEN); |
| 261 | btwrite(IRQ_BTAUDIO, REG_INT_MASK); |
| 262 | if (bta->analog) { |
| 263 | btwrite(DMA_CTL_ACAP_EN | |
| 264 | DMA_CTL_RISC_EN | |
| 265 | DMA_CTL_FIFO_EN | |
| 266 | DMA_CTL_DA_ES2 | |
| 267 | ((bta->bits == 8) ? DMA_CTL_DA_SBR : 0) | |
| 268 | (bta->gain[bta->source] << 28) | |
| 269 | (bta->source << 24) | |
| 270 | (bta->decimation << 8), |
| 271 | REG_GPIO_DMA_CTL); |
| 272 | } else { |
| 273 | btwrite(DMA_CTL_ACAP_EN | |
| 274 | DMA_CTL_RISC_EN | |
| 275 | DMA_CTL_FIFO_EN | |
| 276 | DMA_CTL_DA_ES2 | |
| 277 | DMA_CTL_A_PWRDN | |
| 278 | (1 << 6) | |
| 279 | ((bta->bits == 8) ? DMA_CTL_DA_SBR : 0) | |
| 280 | (bta->gain[bta->source] << 28) | |
| 281 | (bta->source << 24) | |
| 282 | (bta->decimation << 8), |
| 283 | REG_GPIO_DMA_CTL); |
| 284 | } |
| 285 | bta->dma_block = 0; |
| 286 | bta->read_offset = 0; |
| 287 | bta->read_count = 0; |
| 288 | bta->recording = 1; |
| 289 | if (debug) |
| 290 | printk(KERN_DEBUG "btaudio: recording started\n"); |
| 291 | return 0; |
| 292 | } |
| 293 | |
| 294 | static void stop_recording(struct btaudio *bta) |
| 295 | { |
| 296 | btand(~15, REG_GPIO_DMA_CTL); |
| 297 | bta->recording = 0; |
| 298 | if (debug) |
| 299 | printk(KERN_DEBUG "btaudio: recording stopped\n"); |
| 300 | } |
| 301 | |
| 302 | |
| 303 | /* -------------------------------------------------------------- */ |
| 304 | |
| 305 | static int btaudio_mixer_open(struct inode *inode, struct file *file) |
| 306 | { |
| 307 | int minor = iminor(inode); |
| 308 | struct btaudio *bta; |
| 309 | |
| 310 | for (bta = btaudios; bta != NULL; bta = bta->next) |
| 311 | if (bta->mixer_dev == minor) |
| 312 | break; |
| 313 | if (NULL == bta) |
| 314 | return -ENODEV; |
| 315 | |
| 316 | if (debug) |
| 317 | printk("btaudio: open mixer [%d]\n",minor); |
| 318 | file->private_data = bta; |
| 319 | return 0; |
| 320 | } |
| 321 | |
| 322 | static int btaudio_mixer_release(struct inode *inode, struct file *file) |
| 323 | { |
| 324 | return 0; |
| 325 | } |
| 326 | |
| 327 | static int btaudio_mixer_ioctl(struct inode *inode, struct file *file, |
| 328 | unsigned int cmd, unsigned long arg) |
| 329 | { |
| 330 | struct btaudio *bta = file->private_data; |
| 331 | int ret,val=0,i=0; |
| 332 | void __user *argp = (void __user *)arg; |
| 333 | |
| 334 | if (cmd == SOUND_MIXER_INFO) { |
| 335 | mixer_info info; |
| 336 | memset(&info,0,sizeof(info)); |
| 337 | strlcpy(info.id,"bt878",sizeof(info.id)); |
| 338 | strlcpy(info.name,"Brooktree Bt878 audio",sizeof(info.name)); |
| 339 | info.modify_counter = bta->mixcount; |
| 340 | if (copy_to_user(argp, &info, sizeof(info))) |
| 341 | return -EFAULT; |
| 342 | return 0; |
| 343 | } |
| 344 | if (cmd == SOUND_OLD_MIXER_INFO) { |
| 345 | _old_mixer_info info; |
| 346 | memset(&info,0,sizeof(info)); |
| 347 | strlcpy(info.id,"bt878",sizeof(info.id)-1); |
| 348 | strlcpy(info.name,"Brooktree Bt878 audio",sizeof(info.name)); |
| 349 | if (copy_to_user(argp, &info, sizeof(info))) |
| 350 | return -EFAULT; |
| 351 | return 0; |
| 352 | } |
| 353 | if (cmd == OSS_GETVERSION) |
| 354 | return put_user(SOUND_VERSION, (int __user *)argp); |
| 355 | |
| 356 | /* read */ |
| 357 | if (_SIOC_DIR(cmd) & _SIOC_WRITE) |
| 358 | if (get_user(val, (int __user *)argp)) |
| 359 | return -EFAULT; |
| 360 | |
| 361 | switch (cmd) { |
| 362 | case MIXER_READ(SOUND_MIXER_CAPS): |
| 363 | ret = SOUND_CAP_EXCL_INPUT; |
| 364 | break; |
| 365 | case MIXER_READ(SOUND_MIXER_STEREODEVS): |
| 366 | ret = 0; |
| 367 | break; |
| 368 | case MIXER_READ(SOUND_MIXER_RECMASK): |
| 369 | case MIXER_READ(SOUND_MIXER_DEVMASK): |
| 370 | ret = SOUND_MASK_LINE1|SOUND_MASK_LINE2|SOUND_MASK_LINE3; |
| 371 | break; |
| 372 | |
| 373 | case MIXER_WRITE(SOUND_MIXER_RECSRC): |
| 374 | if (val & SOUND_MASK_LINE1 && bta->source != 0) |
| 375 | bta->source = 0; |
| 376 | else if (val & SOUND_MASK_LINE2 && bta->source != 1) |
| 377 | bta->source = 1; |
| 378 | else if (val & SOUND_MASK_LINE3 && bta->source != 2) |
| 379 | bta->source = 2; |
| 380 | btaor((bta->gain[bta->source] << 28) | |
| 381 | (bta->source << 24), |
| 382 | 0x0cffffff, REG_GPIO_DMA_CTL); |
| 383 | case MIXER_READ(SOUND_MIXER_RECSRC): |
| 384 | switch (bta->source) { |
| 385 | case 0: ret = SOUND_MASK_LINE1; break; |
| 386 | case 1: ret = SOUND_MASK_LINE2; break; |
| 387 | case 2: ret = SOUND_MASK_LINE3; break; |
| 388 | default: ret = 0; |
| 389 | } |
| 390 | break; |
| 391 | |
| 392 | case MIXER_WRITE(SOUND_MIXER_LINE1): |
| 393 | case MIXER_WRITE(SOUND_MIXER_LINE2): |
| 394 | case MIXER_WRITE(SOUND_MIXER_LINE3): |
| 395 | if (MIXER_WRITE(SOUND_MIXER_LINE1) == cmd) |
| 396 | i = 0; |
| 397 | if (MIXER_WRITE(SOUND_MIXER_LINE2) == cmd) |
| 398 | i = 1; |
| 399 | if (MIXER_WRITE(SOUND_MIXER_LINE3) == cmd) |
| 400 | i = 2; |
| 401 | bta->gain[i] = (val & 0xff) * 15 / 100; |
| 402 | if (bta->gain[i] > 15) bta->gain[i] = 15; |
| 403 | if (bta->gain[i] < 0) bta->gain[i] = 0; |
| 404 | if (i == bta->source) |
| 405 | btaor((bta->gain[bta->source]<<28), |
| 406 | 0x0fffffff, REG_GPIO_DMA_CTL); |
| 407 | ret = bta->gain[i] * 100 / 15; |
| 408 | ret |= ret << 8; |
| 409 | break; |
| 410 | |
| 411 | case MIXER_READ(SOUND_MIXER_LINE1): |
| 412 | case MIXER_READ(SOUND_MIXER_LINE2): |
| 413 | case MIXER_READ(SOUND_MIXER_LINE3): |
| 414 | if (MIXER_READ(SOUND_MIXER_LINE1) == cmd) |
| 415 | i = 0; |
| 416 | if (MIXER_READ(SOUND_MIXER_LINE2) == cmd) |
| 417 | i = 1; |
| 418 | if (MIXER_READ(SOUND_MIXER_LINE3) == cmd) |
| 419 | i = 2; |
| 420 | ret = bta->gain[i] * 100 / 15; |
| 421 | ret |= ret << 8; |
| 422 | break; |
| 423 | |
| 424 | default: |
| 425 | return -EINVAL; |
| 426 | } |
| 427 | if (put_user(ret, (int __user *)argp)) |
| 428 | return -EFAULT; |
| 429 | return 0; |
| 430 | } |
| 431 | |
Arjan van de Ven | 9c2e08c | 2007-02-12 00:55:37 -0800 | [diff] [blame] | 432 | static const struct file_operations btaudio_mixer_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | .owner = THIS_MODULE, |
| 434 | .llseek = no_llseek, |
| 435 | .open = btaudio_mixer_open, |
| 436 | .release = btaudio_mixer_release, |
| 437 | .ioctl = btaudio_mixer_ioctl, |
| 438 | }; |
| 439 | |
| 440 | /* -------------------------------------------------------------- */ |
| 441 | |
| 442 | static int btaudio_dsp_open(struct inode *inode, struct file *file, |
| 443 | struct btaudio *bta, int analog) |
| 444 | { |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 445 | mutex_lock(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | if (bta->users) |
| 447 | goto busy; |
| 448 | bta->users++; |
| 449 | file->private_data = bta; |
| 450 | |
| 451 | bta->analog = analog; |
| 452 | bta->dma_block = 0; |
| 453 | bta->read_offset = 0; |
| 454 | bta->read_count = 0; |
| 455 | bta->sampleshift = 0; |
| 456 | |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 457 | mutex_unlock(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | return 0; |
| 459 | |
| 460 | busy: |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 461 | mutex_unlock(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | return -EBUSY; |
| 463 | } |
| 464 | |
| 465 | static int btaudio_dsp_open_digital(struct inode *inode, struct file *file) |
| 466 | { |
| 467 | int minor = iminor(inode); |
| 468 | struct btaudio *bta; |
| 469 | |
| 470 | for (bta = btaudios; bta != NULL; bta = bta->next) |
| 471 | if (bta->dsp_digital == minor) |
| 472 | break; |
| 473 | if (NULL == bta) |
| 474 | return -ENODEV; |
| 475 | |
| 476 | if (debug) |
| 477 | printk("btaudio: open digital dsp [%d]\n",minor); |
| 478 | return btaudio_dsp_open(inode,file,bta,0); |
| 479 | } |
| 480 | |
| 481 | static int btaudio_dsp_open_analog(struct inode *inode, struct file *file) |
| 482 | { |
| 483 | int minor = iminor(inode); |
| 484 | struct btaudio *bta; |
| 485 | |
| 486 | for (bta = btaudios; bta != NULL; bta = bta->next) |
| 487 | if (bta->dsp_analog == minor) |
| 488 | break; |
| 489 | if (NULL == bta) |
| 490 | return -ENODEV; |
| 491 | |
| 492 | if (debug) |
| 493 | printk("btaudio: open analog dsp [%d]\n",minor); |
| 494 | return btaudio_dsp_open(inode,file,bta,1); |
| 495 | } |
| 496 | |
| 497 | static int btaudio_dsp_release(struct inode *inode, struct file *file) |
| 498 | { |
| 499 | struct btaudio *bta = file->private_data; |
| 500 | |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 501 | mutex_lock(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | if (bta->recording) |
| 503 | stop_recording(bta); |
| 504 | bta->users--; |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 505 | mutex_unlock(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | return 0; |
| 507 | } |
| 508 | |
| 509 | static ssize_t btaudio_dsp_read(struct file *file, char __user *buffer, |
| 510 | size_t swcount, loff_t *ppos) |
| 511 | { |
| 512 | struct btaudio *bta = file->private_data; |
| 513 | int hwcount = swcount << bta->sampleshift; |
| 514 | int nsrc, ndst, err, ret = 0; |
| 515 | DECLARE_WAITQUEUE(wait, current); |
| 516 | |
| 517 | add_wait_queue(&bta->readq, &wait); |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 518 | mutex_lock(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | while (swcount > 0) { |
| 520 | if (0 == bta->read_count) { |
| 521 | if (!bta->recording) { |
| 522 | if (0 != (err = start_recording(bta))) { |
| 523 | if (0 == ret) |
| 524 | ret = err; |
| 525 | break; |
| 526 | } |
| 527 | } |
| 528 | if (file->f_flags & O_NONBLOCK) { |
| 529 | if (0 == ret) |
| 530 | ret = -EAGAIN; |
| 531 | break; |
| 532 | } |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 533 | mutex_unlock(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | current->state = TASK_INTERRUPTIBLE; |
| 535 | schedule(); |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 536 | mutex_lock(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | if(signal_pending(current)) { |
| 538 | if (0 == ret) |
| 539 | ret = -EINTR; |
| 540 | break; |
| 541 | } |
| 542 | } |
| 543 | nsrc = (bta->read_count < hwcount) ? bta->read_count : hwcount; |
| 544 | if (nsrc > bta->buf_size - bta->read_offset) |
| 545 | nsrc = bta->buf_size - bta->read_offset; |
| 546 | ndst = nsrc >> bta->sampleshift; |
| 547 | |
| 548 | if ((bta->analog && 0 == bta->sampleshift) || |
| 549 | (!bta->analog && 2 == bta->channels)) { |
| 550 | /* just copy */ |
| 551 | if (copy_to_user(buffer + ret, bta->buf_cpu + bta->read_offset, nsrc)) { |
| 552 | if (0 == ret) |
| 553 | ret = -EFAULT; |
| 554 | break; |
| 555 | } |
| 556 | |
| 557 | } else if (!bta->analog) { |
| 558 | /* stereo => mono (digital audio) */ |
| 559 | __s16 *src = (__s16*)(bta->buf_cpu + bta->read_offset); |
| 560 | __s16 __user *dst = (__s16 __user *)(buffer + ret); |
| 561 | __s16 avg; |
| 562 | int n = ndst>>1; |
| 563 | if (!access_ok(VERIFY_WRITE, dst, ndst)) { |
| 564 | if (0 == ret) |
| 565 | ret = -EFAULT; |
| 566 | break; |
| 567 | } |
| 568 | for (; n; n--, dst++) { |
| 569 | avg = (__s16)le16_to_cpu(*src) / 2; src++; |
| 570 | avg += (__s16)le16_to_cpu(*src) / 2; src++; |
| 571 | __put_user(cpu_to_le16(avg),dst); |
| 572 | } |
| 573 | |
| 574 | } else if (8 == bta->bits) { |
| 575 | /* copy + byte downsampling (audio A/D) */ |
| 576 | __u8 *src = bta->buf_cpu + bta->read_offset; |
| 577 | __u8 __user *dst = buffer + ret; |
| 578 | int n = ndst; |
| 579 | if (!access_ok(VERIFY_WRITE, dst, ndst)) { |
| 580 | if (0 == ret) |
| 581 | ret = -EFAULT; |
| 582 | break; |
| 583 | } |
| 584 | for (; n; n--, src += (1 << bta->sampleshift), dst++) |
| 585 | __put_user(*src, dst); |
| 586 | |
| 587 | } else { |
| 588 | /* copy + word downsampling (audio A/D) */ |
| 589 | __u16 *src = (__u16*)(bta->buf_cpu + bta->read_offset); |
| 590 | __u16 __user *dst = (__u16 __user *)(buffer + ret); |
| 591 | int n = ndst>>1; |
| 592 | if (!access_ok(VERIFY_WRITE,dst,ndst)) { |
| 593 | if (0 == ret) |
| 594 | ret = -EFAULT; |
| 595 | break; |
| 596 | } |
| 597 | for (; n; n--, src += (1 << bta->sampleshift), dst++) |
| 598 | __put_user(*src, dst); |
| 599 | } |
| 600 | |
| 601 | ret += ndst; |
| 602 | swcount -= ndst; |
| 603 | hwcount -= nsrc; |
| 604 | bta->read_count -= nsrc; |
| 605 | bta->read_offset += nsrc; |
| 606 | if (bta->read_offset == bta->buf_size) |
| 607 | bta->read_offset = 0; |
| 608 | } |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 609 | mutex_unlock(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 610 | remove_wait_queue(&bta->readq, &wait); |
| 611 | current->state = TASK_RUNNING; |
| 612 | return ret; |
| 613 | } |
| 614 | |
| 615 | static ssize_t btaudio_dsp_write(struct file *file, const char __user *buffer, |
| 616 | size_t count, loff_t *ppos) |
| 617 | { |
| 618 | return -EINVAL; |
| 619 | } |
| 620 | |
| 621 | static int btaudio_dsp_ioctl(struct inode *inode, struct file *file, |
| 622 | unsigned int cmd, unsigned long arg) |
| 623 | { |
| 624 | struct btaudio *bta = file->private_data; |
| 625 | int s, i, ret, val = 0; |
| 626 | void __user *argp = (void __user *)arg; |
| 627 | int __user *p = argp; |
| 628 | |
| 629 | switch (cmd) { |
| 630 | case OSS_GETVERSION: |
| 631 | return put_user(SOUND_VERSION, p); |
| 632 | case SNDCTL_DSP_GETCAPS: |
| 633 | return 0; |
| 634 | |
| 635 | case SNDCTL_DSP_SPEED: |
| 636 | if (get_user(val, p)) |
| 637 | return -EFAULT; |
| 638 | if (bta->analog) { |
| 639 | for (s = 0; s < 16; s++) |
| 640 | if (val << s >= HWBASE_AD*4/15) |
| 641 | break; |
| 642 | for (i = 15; i >= 5; i--) |
| 643 | if (val << s <= HWBASE_AD*4/i) |
| 644 | break; |
| 645 | bta->sampleshift = s; |
| 646 | bta->decimation = i; |
| 647 | if (debug) |
| 648 | printk(KERN_DEBUG "btaudio: rate: req=%d " |
| 649 | "dec=%d shift=%d hwrate=%d swrate=%d\n", |
| 650 | val,i,s,(HWBASE_AD*4/i),(HWBASE_AD*4/i)>>s); |
| 651 | } else { |
| 652 | bta->sampleshift = (bta->channels == 2) ? 0 : 1; |
| 653 | bta->decimation = 0; |
| 654 | } |
| 655 | if (bta->recording) { |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 656 | mutex_lock(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | stop_recording(bta); |
| 658 | start_recording(bta); |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 659 | mutex_unlock(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | } |
| 661 | /* fall through */ |
| 662 | case SOUND_PCM_READ_RATE: |
| 663 | if (bta->analog) { |
| 664 | return put_user(HWBASE_AD*4/bta->decimation>>bta->sampleshift, p); |
| 665 | } else { |
| 666 | return put_user(bta->rate, p); |
| 667 | } |
| 668 | |
| 669 | case SNDCTL_DSP_STEREO: |
| 670 | if (!bta->analog) { |
| 671 | if (get_user(val, p)) |
| 672 | return -EFAULT; |
| 673 | bta->channels = (val > 0) ? 2 : 1; |
| 674 | bta->sampleshift = (bta->channels == 2) ? 0 : 1; |
| 675 | if (debug) |
| 676 | printk(KERN_INFO |
| 677 | "btaudio: stereo=%d channels=%d\n", |
| 678 | val,bta->channels); |
| 679 | } else { |
| 680 | if (val == 1) |
| 681 | return -EFAULT; |
| 682 | else { |
| 683 | bta->channels = 1; |
| 684 | if (debug) |
| 685 | printk(KERN_INFO |
| 686 | "btaudio: stereo=0 channels=1\n"); |
| 687 | } |
| 688 | } |
| 689 | return put_user((bta->channels)-1, p); |
| 690 | |
| 691 | case SNDCTL_DSP_CHANNELS: |
| 692 | if (!bta->analog) { |
| 693 | if (get_user(val, p)) |
| 694 | return -EFAULT; |
| 695 | bta->channels = (val > 1) ? 2 : 1; |
| 696 | bta->sampleshift = (bta->channels == 2) ? 0 : 1; |
| 697 | if (debug) |
| 698 | printk(KERN_DEBUG |
| 699 | "btaudio: val=%d channels=%d\n", |
| 700 | val,bta->channels); |
| 701 | } |
| 702 | /* fall through */ |
| 703 | case SOUND_PCM_READ_CHANNELS: |
| 704 | return put_user(bta->channels, p); |
| 705 | |
| 706 | case SNDCTL_DSP_GETFMTS: /* Returns a mask */ |
| 707 | if (bta->analog) |
| 708 | return put_user(AFMT_S16_LE|AFMT_S8, p); |
| 709 | else |
| 710 | return put_user(AFMT_S16_LE, p); |
| 711 | |
| 712 | case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/ |
| 713 | if (get_user(val, p)) |
| 714 | return -EFAULT; |
| 715 | if (val != AFMT_QUERY) { |
| 716 | if (bta->analog) |
| 717 | bta->bits = (val == AFMT_S8) ? 8 : 16; |
| 718 | else |
| 719 | bta->bits = 16; |
| 720 | if (bta->recording) { |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 721 | mutex_lock(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | stop_recording(bta); |
| 723 | start_recording(bta); |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 724 | mutex_unlock(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | } |
| 726 | } |
| 727 | if (debug) |
| 728 | printk(KERN_DEBUG "btaudio: fmt: bits=%d\n",bta->bits); |
| 729 | return put_user((bta->bits==16) ? AFMT_S16_LE : AFMT_S8, |
| 730 | p); |
| 731 | break; |
| 732 | case SOUND_PCM_READ_BITS: |
| 733 | return put_user(bta->bits, p); |
| 734 | |
| 735 | case SNDCTL_DSP_NONBLOCK: |
| 736 | file->f_flags |= O_NONBLOCK; |
| 737 | return 0; |
| 738 | |
| 739 | case SNDCTL_DSP_RESET: |
| 740 | if (bta->recording) { |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 741 | mutex_lock(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | stop_recording(bta); |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 743 | mutex_unlock(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | } |
| 745 | return 0; |
| 746 | case SNDCTL_DSP_GETBLKSIZE: |
| 747 | if (!bta->recording) { |
| 748 | if (0 != (ret = alloc_buffer(bta))) |
| 749 | return ret; |
| 750 | if (0 != (ret = make_risc(bta))) |
| 751 | return ret; |
| 752 | } |
| 753 | return put_user(bta->block_bytes>>bta->sampleshift,p); |
| 754 | |
| 755 | case SNDCTL_DSP_SYNC: |
| 756 | /* NOP */ |
| 757 | return 0; |
| 758 | case SNDCTL_DSP_GETISPACE: |
| 759 | { |
| 760 | audio_buf_info info; |
| 761 | if (!bta->recording) |
| 762 | return -EINVAL; |
| 763 | info.fragsize = bta->block_bytes>>bta->sampleshift; |
| 764 | info.fragstotal = bta->block_count; |
| 765 | info.bytes = bta->read_count; |
| 766 | info.fragments = info.bytes / info.fragsize; |
| 767 | if (debug) |
| 768 | printk(KERN_DEBUG "btaudio: SNDCTL_DSP_GETISPACE " |
| 769 | "returns %d/%d/%d/%d\n", |
| 770 | info.fragsize, info.fragstotal, |
| 771 | info.bytes, info.fragments); |
| 772 | if (copy_to_user(argp, &info, sizeof(info))) |
| 773 | return -EFAULT; |
| 774 | return 0; |
| 775 | } |
| 776 | #if 0 /* TODO */ |
| 777 | case SNDCTL_DSP_GETTRIGGER: |
| 778 | case SNDCTL_DSP_SETTRIGGER: |
| 779 | case SNDCTL_DSP_SETFRAGMENT: |
| 780 | #endif |
| 781 | default: |
| 782 | return -EINVAL; |
| 783 | } |
| 784 | } |
| 785 | |
| 786 | static unsigned int btaudio_dsp_poll(struct file *file, struct poll_table_struct *wait) |
| 787 | { |
| 788 | struct btaudio *bta = file->private_data; |
| 789 | unsigned int mask = 0; |
| 790 | |
| 791 | poll_wait(file, &bta->readq, wait); |
| 792 | |
| 793 | if (0 != bta->read_count) |
| 794 | mask |= (POLLIN | POLLRDNORM); |
| 795 | |
| 796 | return mask; |
| 797 | } |
| 798 | |
Arjan van de Ven | 9c2e08c | 2007-02-12 00:55:37 -0800 | [diff] [blame] | 799 | static const struct file_operations btaudio_digital_dsp_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 800 | .owner = THIS_MODULE, |
| 801 | .llseek = no_llseek, |
| 802 | .open = btaudio_dsp_open_digital, |
| 803 | .release = btaudio_dsp_release, |
| 804 | .read = btaudio_dsp_read, |
| 805 | .write = btaudio_dsp_write, |
| 806 | .ioctl = btaudio_dsp_ioctl, |
| 807 | .poll = btaudio_dsp_poll, |
| 808 | }; |
| 809 | |
Arjan van de Ven | 9c2e08c | 2007-02-12 00:55:37 -0800 | [diff] [blame] | 810 | static const struct file_operations btaudio_analog_dsp_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | .owner = THIS_MODULE, |
| 812 | .llseek = no_llseek, |
| 813 | .open = btaudio_dsp_open_analog, |
| 814 | .release = btaudio_dsp_release, |
| 815 | .read = btaudio_dsp_read, |
| 816 | .write = btaudio_dsp_write, |
| 817 | .ioctl = btaudio_dsp_ioctl, |
| 818 | .poll = btaudio_dsp_poll, |
| 819 | }; |
| 820 | |
| 821 | /* -------------------------------------------------------------- */ |
| 822 | |
| 823 | static char *irq_name[] = { "", "", "", "OFLOW", "", "", "", "", "", "", "", |
| 824 | "RISCI", "FBUS", "FTRGT", "FDSR", "PPERR", |
| 825 | "RIPERR", "PABORT", "OCERR", "SCERR" }; |
| 826 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 827 | static irqreturn_t btaudio_irq(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | { |
| 829 | int count = 0; |
| 830 | u32 stat,astat; |
| 831 | struct btaudio *bta = dev_id; |
| 832 | int handled = 0; |
| 833 | |
| 834 | for (;;) { |
| 835 | count++; |
| 836 | stat = btread(REG_INT_STAT); |
| 837 | astat = stat & btread(REG_INT_MASK); |
| 838 | if (!astat) |
| 839 | return IRQ_RETVAL(handled); |
| 840 | handled = 1; |
| 841 | btwrite(astat,REG_INT_STAT); |
| 842 | |
| 843 | if (irq_debug) { |
| 844 | int i; |
| 845 | printk(KERN_DEBUG "btaudio: irq loop=%d risc=%x, bits:", |
| 846 | count, stat>>28); |
| 847 | for (i = 0; i < (sizeof(irq_name)/sizeof(char*)); i++) { |
| 848 | if (stat & (1 << i)) |
| 849 | printk(" %s",irq_name[i]); |
| 850 | if (astat & (1 << i)) |
| 851 | printk("*"); |
| 852 | } |
| 853 | printk("\n"); |
| 854 | } |
| 855 | if (stat & IRQ_RISCI) { |
| 856 | int blocks; |
| 857 | blocks = (stat >> 28) - bta->dma_block; |
| 858 | if (blocks < 0) |
| 859 | blocks += bta->block_count; |
| 860 | bta->dma_block = stat >> 28; |
| 861 | if (bta->read_count + 2*bta->block_bytes > bta->buf_size) { |
| 862 | stop_recording(bta); |
| 863 | printk(KERN_INFO "btaudio: buffer overrun\n"); |
| 864 | } |
| 865 | if (blocks > 0) { |
| 866 | bta->read_count += blocks * bta->block_bytes; |
| 867 | wake_up_interruptible(&bta->readq); |
| 868 | } |
| 869 | } |
| 870 | if (count > 10) { |
| 871 | printk(KERN_WARNING |
| 872 | "btaudio: Oops - irq mask cleared\n"); |
| 873 | btwrite(0, REG_INT_MASK); |
| 874 | } |
| 875 | } |
| 876 | return IRQ_NONE; |
| 877 | } |
| 878 | |
| 879 | /* -------------------------------------------------------------- */ |
| 880 | |
| 881 | static unsigned int dsp1 = -1; |
| 882 | static unsigned int dsp2 = -1; |
| 883 | static unsigned int mixer = -1; |
| 884 | static int latency = -1; |
| 885 | static int digital = 1; |
| 886 | static int analog = 1; |
| 887 | static int rate; |
| 888 | |
| 889 | #define BTA_OSPREY200 1 |
| 890 | |
| 891 | static struct cardinfo cards[] = { |
| 892 | [0] = { |
| 893 | .name = "default", |
| 894 | .rate = 32000, |
| 895 | }, |
| 896 | [BTA_OSPREY200] = { |
| 897 | .name = "Osprey 200", |
| 898 | .rate = 44100, |
| 899 | }, |
| 900 | }; |
| 901 | |
| 902 | static int __devinit btaudio_probe(struct pci_dev *pci_dev, |
| 903 | const struct pci_device_id *pci_id) |
| 904 | { |
| 905 | struct btaudio *bta; |
| 906 | struct cardinfo *card = &cards[pci_id->driver_data]; |
| 907 | unsigned char revision,lat; |
| 908 | int rc = -EBUSY; |
| 909 | |
| 910 | if (pci_enable_device(pci_dev)) |
| 911 | return -EIO; |
| 912 | if (!request_mem_region(pci_resource_start(pci_dev,0), |
| 913 | pci_resource_len(pci_dev,0), |
| 914 | "btaudio")) { |
| 915 | return -EBUSY; |
| 916 | } |
| 917 | |
Robert P. J. Day | 3159f06 | 2007-02-14 00:33:16 -0800 | [diff] [blame^] | 918 | bta = kzalloc(sizeof(*bta),GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 919 | if (!bta) { |
| 920 | rc = -ENOMEM; |
| 921 | goto fail0; |
| 922 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | |
| 924 | bta->pci = pci_dev; |
| 925 | bta->irq = pci_dev->irq; |
| 926 | bta->mem = pci_resource_start(pci_dev,0); |
| 927 | bta->mmio = ioremap(pci_resource_start(pci_dev,0), |
| 928 | pci_resource_len(pci_dev,0)); |
| 929 | |
| 930 | bta->source = 1; |
| 931 | bta->bits = 8; |
| 932 | bta->channels = 1; |
| 933 | if (bta->analog) { |
| 934 | bta->decimation = 15; |
| 935 | } else { |
| 936 | bta->decimation = 0; |
| 937 | bta->sampleshift = 1; |
| 938 | } |
| 939 | |
| 940 | /* sample rate */ |
| 941 | bta->rate = card->rate; |
| 942 | if (rate) |
| 943 | bta->rate = rate; |
| 944 | |
Ingo Molnar | 910f5d2 | 2006-03-23 03:00:39 -0800 | [diff] [blame] | 945 | mutex_init(&bta->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 946 | init_waitqueue_head(&bta->readq); |
| 947 | |
| 948 | if (-1 != latency) { |
| 949 | printk(KERN_INFO "btaudio: setting pci latency timer to %d\n", |
| 950 | latency); |
| 951 | pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency); |
| 952 | } |
| 953 | pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &revision); |
| 954 | pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &lat); |
| 955 | printk(KERN_INFO "btaudio: Bt%x (rev %d) at %02x:%02x.%x, ", |
| 956 | pci_dev->device,revision,pci_dev->bus->number, |
| 957 | PCI_SLOT(pci_dev->devfn),PCI_FUNC(pci_dev->devfn)); |
| 958 | printk("irq: %d, latency: %d, mmio: 0x%lx\n", |
| 959 | bta->irq, lat, bta->mem); |
| 960 | printk("btaudio: using card config \"%s\"\n", card->name); |
| 961 | |
| 962 | /* init hw */ |
| 963 | btwrite(0, REG_GPIO_DMA_CTL); |
| 964 | btwrite(0, REG_INT_MASK); |
| 965 | btwrite(~0U, REG_INT_STAT); |
| 966 | pci_set_master(pci_dev); |
| 967 | |
Thomas Gleixner | 65ca68b | 2006-07-01 19:29:46 -0700 | [diff] [blame] | 968 | if ((rc = request_irq(bta->irq, btaudio_irq, IRQF_SHARED|IRQF_DISABLED, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 969 | "btaudio",(void *)bta)) < 0) { |
| 970 | printk(KERN_WARNING |
| 971 | "btaudio: can't request irq (rc=%d)\n",rc); |
| 972 | goto fail1; |
| 973 | } |
| 974 | |
| 975 | /* register devices */ |
| 976 | if (digital) { |
| 977 | rc = bta->dsp_digital = |
| 978 | register_sound_dsp(&btaudio_digital_dsp_fops,dsp1); |
| 979 | if (rc < 0) { |
| 980 | printk(KERN_WARNING |
| 981 | "btaudio: can't register digital dsp (rc=%d)\n",rc); |
| 982 | goto fail2; |
| 983 | } |
| 984 | printk(KERN_INFO "btaudio: registered device dsp%d [digital]\n", |
| 985 | bta->dsp_digital >> 4); |
| 986 | } |
| 987 | if (analog) { |
| 988 | rc = bta->dsp_analog = |
| 989 | register_sound_dsp(&btaudio_analog_dsp_fops,dsp2); |
| 990 | if (rc < 0) { |
| 991 | printk(KERN_WARNING |
| 992 | "btaudio: can't register analog dsp (rc=%d)\n",rc); |
| 993 | goto fail3; |
| 994 | } |
| 995 | printk(KERN_INFO "btaudio: registered device dsp%d [analog]\n", |
| 996 | bta->dsp_analog >> 4); |
| 997 | rc = bta->mixer_dev = register_sound_mixer(&btaudio_mixer_fops,mixer); |
| 998 | if (rc < 0) { |
| 999 | printk(KERN_WARNING |
| 1000 | "btaudio: can't register mixer (rc=%d)\n",rc); |
| 1001 | goto fail4; |
| 1002 | } |
| 1003 | printk(KERN_INFO "btaudio: registered device mixer%d\n", |
| 1004 | bta->mixer_dev >> 4); |
| 1005 | } |
| 1006 | |
| 1007 | /* hook into linked list */ |
| 1008 | bta->next = btaudios; |
| 1009 | btaudios = bta; |
| 1010 | |
| 1011 | pci_set_drvdata(pci_dev,bta); |
| 1012 | return 0; |
| 1013 | |
| 1014 | fail4: |
| 1015 | unregister_sound_dsp(bta->dsp_analog); |
| 1016 | fail3: |
| 1017 | if (digital) |
| 1018 | unregister_sound_dsp(bta->dsp_digital); |
| 1019 | fail2: |
| 1020 | free_irq(bta->irq,bta); |
| 1021 | fail1: |
Amol Lad | b9d85b0 | 2006-12-06 20:35:23 -0800 | [diff] [blame] | 1022 | iounmap(bta->mmio); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1023 | kfree(bta); |
| 1024 | fail0: |
| 1025 | release_mem_region(pci_resource_start(pci_dev,0), |
| 1026 | pci_resource_len(pci_dev,0)); |
| 1027 | return rc; |
| 1028 | } |
| 1029 | |
| 1030 | static void __devexit btaudio_remove(struct pci_dev *pci_dev) |
| 1031 | { |
| 1032 | struct btaudio *bta = pci_get_drvdata(pci_dev); |
| 1033 | struct btaudio *walk; |
| 1034 | |
| 1035 | /* turn off all DMA / IRQs */ |
| 1036 | btand(~15, REG_GPIO_DMA_CTL); |
| 1037 | btwrite(0, REG_INT_MASK); |
| 1038 | btwrite(~0U, REG_INT_STAT); |
| 1039 | |
| 1040 | /* unregister devices */ |
| 1041 | if (digital) { |
| 1042 | unregister_sound_dsp(bta->dsp_digital); |
| 1043 | } |
| 1044 | if (analog) { |
| 1045 | unregister_sound_dsp(bta->dsp_analog); |
| 1046 | unregister_sound_mixer(bta->mixer_dev); |
| 1047 | } |
| 1048 | |
| 1049 | /* free resources */ |
| 1050 | free_buffer(bta); |
| 1051 | free_irq(bta->irq,bta); |
| 1052 | release_mem_region(pci_resource_start(pci_dev,0), |
| 1053 | pci_resource_len(pci_dev,0)); |
Amol Lad | b9d85b0 | 2006-12-06 20:35:23 -0800 | [diff] [blame] | 1054 | iounmap(bta->mmio); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1055 | |
| 1056 | /* remove from linked list */ |
| 1057 | if (bta == btaudios) { |
| 1058 | btaudios = NULL; |
| 1059 | } else { |
| 1060 | for (walk = btaudios; walk->next != bta; walk = walk->next) |
| 1061 | ; /* if (NULL == walk->next) BUG(); */ |
| 1062 | walk->next = bta->next; |
| 1063 | } |
| 1064 | |
| 1065 | pci_set_drvdata(pci_dev, NULL); |
| 1066 | kfree(bta); |
| 1067 | return; |
| 1068 | } |
| 1069 | |
| 1070 | /* -------------------------------------------------------------- */ |
| 1071 | |
| 1072 | static struct pci_device_id btaudio_pci_tbl[] = { |
| 1073 | { |
| 1074 | .vendor = PCI_VENDOR_ID_BROOKTREE, |
| 1075 | .device = 0x0878, |
| 1076 | .subvendor = 0x0070, |
| 1077 | .subdevice = 0xff01, |
| 1078 | .driver_data = BTA_OSPREY200, |
| 1079 | },{ |
| 1080 | .vendor = PCI_VENDOR_ID_BROOKTREE, |
| 1081 | .device = 0x0878, |
| 1082 | .subvendor = PCI_ANY_ID, |
| 1083 | .subdevice = PCI_ANY_ID, |
| 1084 | },{ |
| 1085 | .vendor = PCI_VENDOR_ID_BROOKTREE, |
| 1086 | .device = 0x0878, |
| 1087 | .subvendor = PCI_ANY_ID, |
| 1088 | .subdevice = PCI_ANY_ID, |
| 1089 | },{ |
| 1090 | /* --- end of list --- */ |
| 1091 | } |
| 1092 | }; |
| 1093 | |
| 1094 | static struct pci_driver btaudio_pci_driver = { |
| 1095 | .name = "btaudio", |
| 1096 | .id_table = btaudio_pci_tbl, |
| 1097 | .probe = btaudio_probe, |
| 1098 | .remove = __devexit_p(btaudio_remove), |
| 1099 | }; |
| 1100 | |
| 1101 | static int btaudio_init_module(void) |
| 1102 | { |
| 1103 | printk(KERN_INFO "btaudio: driver version 0.7 loaded [%s%s%s]\n", |
| 1104 | digital ? "digital" : "", |
| 1105 | analog && digital ? "+" : "", |
| 1106 | analog ? "analog" : ""); |
Greg Kroah-Hartman | 4665472 | 2005-12-06 15:33:15 -0800 | [diff] [blame] | 1107 | return pci_register_driver(&btaudio_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1108 | } |
| 1109 | |
| 1110 | static void btaudio_cleanup_module(void) |
| 1111 | { |
| 1112 | pci_unregister_driver(&btaudio_pci_driver); |
| 1113 | return; |
| 1114 | } |
| 1115 | |
| 1116 | module_init(btaudio_init_module); |
| 1117 | module_exit(btaudio_cleanup_module); |
| 1118 | |
| 1119 | module_param(dsp1, int, S_IRUGO); |
| 1120 | module_param(dsp2, int, S_IRUGO); |
| 1121 | module_param(mixer, int, S_IRUGO); |
| 1122 | module_param(debug, int, S_IRUGO | S_IWUSR); |
| 1123 | module_param(irq_debug, int, S_IRUGO | S_IWUSR); |
| 1124 | module_param(digital, int, S_IRUGO); |
| 1125 | module_param(analog, int, S_IRUGO); |
| 1126 | module_param(rate, int, S_IRUGO); |
| 1127 | module_param(latency, int, S_IRUGO); |
| 1128 | MODULE_PARM_DESC(latency,"pci latency timer"); |
| 1129 | |
| 1130 | MODULE_DEVICE_TABLE(pci, btaudio_pci_tbl); |
| 1131 | MODULE_DESCRIPTION("bt878 audio dma driver"); |
| 1132 | MODULE_AUTHOR("Gerd Knorr"); |
| 1133 | MODULE_LICENSE("GPL"); |
| 1134 | |
| 1135 | /* |
| 1136 | * Local variables: |
| 1137 | * c-basic-offset: 8 |
| 1138 | * End: |
| 1139 | */ |