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[PATCH] core-dumping unreadable binaries via PT_INTERP
[linux-2.6/verdex.git] / sound / pci / intel8x0m.c
blob09dcf923b5471fdda5015daf25f8b6a4f7a239a2
1 /*
2 * ALSA modem driver for Intel ICH (i8x0) chipsets
3 *
4 * Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz>
5 *
6 * This is modified (by Sasha Khapyorsky <sashak@alsa-project.org>) version
7 * of ALSA ICH sound driver intel8x0.c .
8 *
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 */
25
26 #include <sound/driver.h>
27 #include <asm/io.h>
28 #include <linux/delay.h>
29 #include <linux/interrupt.h>
30 #include <linux/init.h>
31 #include <linux/pci.h>
32 #include <linux/slab.h>
33 #include <linux/moduleparam.h>
34 #include <sound/core.h>
35 #include <sound/pcm.h>
36 #include <sound/ac97_codec.h>
37 #include <sound/info.h>
38 #include <sound/initval.h>
39
40 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
41 MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; "
42 "SiS 7013; NVidia MCP/2/2S/3 modems");
43 MODULE_LICENSE("GPL");
44 MODULE_SUPPORTED_DEVICE("{{Intel,82801AA-ICH},"
45 "{Intel,82901AB-ICH0},"
46 "{Intel,82801BA-ICH2},"
47 "{Intel,82801CA-ICH3},"
48 "{Intel,82801DB-ICH4},"
49 "{Intel,ICH5},"
50 "{Intel,ICH6},"
51 "{Intel,ICH7},"
52 "{Intel,MX440},"
53 "{SiS,7013},"
54 "{NVidia,NForce Modem},"
55 "{NVidia,NForce2 Modem},"
56 "{NVidia,NForce2s Modem},"
57 "{NVidia,NForce3 Modem},"
58 "{AMD,AMD768}}");
59
60 static int index = -2; /* Exclude the first card */
61 static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
62 static int ac97_clock;
63
64 module_param(index, int, 0444);
65 MODULE_PARM_DESC(index, "Index value for Intel i8x0 modemcard.");
66 module_param(id, charp, 0444);
67 MODULE_PARM_DESC(id, "ID string for Intel i8x0 modemcard.");
68 module_param(ac97_clock, int, 0444);
69 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = auto-detect).");
70
71 /* just for backward compatibility */
72 static int enable;
73 module_param(enable, bool, 0444);
74
75 /*
76 * Direct registers
77 */
78 enum { DEVICE_INTEL, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
79
80 #define ICHREG(x) ICH_REG_##x
81
82 #define DEFINE_REGSET(name,base) \
83 enum { \
84 ICH_REG_##name##_BDBAR = base + 0x0, /* dword - buffer descriptor list base address */ \
85 ICH_REG_##name##_CIV = base + 0x04, /* byte - current index value */ \
86 ICH_REG_##name##_LVI = base + 0x05, /* byte - last valid index */ \
87 ICH_REG_##name##_SR = base + 0x06, /* byte - status register */ \
88 ICH_REG_##name##_PICB = base + 0x08, /* word - position in current buffer */ \
89 ICH_REG_##name##_PIV = base + 0x0a, /* byte - prefetched index value */ \
90 ICH_REG_##name##_CR = base + 0x0b, /* byte - control register */ \
91 };
92
93 /* busmaster blocks */
94 DEFINE_REGSET(OFF, 0); /* offset */
95
96 /* values for each busmaster block */
97
98 /* LVI */
99 #define ICH_REG_LVI_MASK 0x1f
100
101 /* SR */
102 #define ICH_FIFOE 0x10 /* FIFO error */
103 #define ICH_BCIS 0x08 /* buffer completion interrupt status */
104 #define ICH_LVBCI 0x04 /* last valid buffer completion interrupt */
105 #define ICH_CELV 0x02 /* current equals last valid */
106 #define ICH_DCH 0x01 /* DMA controller halted */
107
108 /* PIV */
109 #define ICH_REG_PIV_MASK 0x1f /* mask */
110
111 /* CR */
112 #define ICH_IOCE 0x10 /* interrupt on completion enable */
113 #define ICH_FEIE 0x08 /* fifo error interrupt enable */
114 #define ICH_LVBIE 0x04 /* last valid buffer interrupt enable */
115 #define ICH_RESETREGS 0x02 /* reset busmaster registers */
116 #define ICH_STARTBM 0x01 /* start busmaster operation */
117
118
119 /* global block */
120 #define ICH_REG_GLOB_CNT 0x3c /* dword - global control */
121 #define ICH_TRIE 0x00000040 /* tertiary resume interrupt enable */
122 #define ICH_SRIE 0x00000020 /* secondary resume interrupt enable */
123 #define ICH_PRIE 0x00000010 /* primary resume interrupt enable */
124 #define ICH_ACLINK 0x00000008 /* AClink shut off */
125 #define ICH_AC97WARM 0x00000004 /* AC'97 warm reset */
126 #define ICH_AC97COLD 0x00000002 /* AC'97 cold reset */
127 #define ICH_GIE 0x00000001 /* GPI interrupt enable */
128 #define ICH_REG_GLOB_STA 0x40 /* dword - global status */
129 #define ICH_TRI 0x20000000 /* ICH4: tertiary (AC_SDIN2) resume interrupt */
130 #define ICH_TCR 0x10000000 /* ICH4: tertiary (AC_SDIN2) codec ready */
131 #define ICH_BCS 0x08000000 /* ICH4: bit clock stopped */
132 #define ICH_SPINT 0x04000000 /* ICH4: S/PDIF interrupt */
133 #define ICH_P2INT 0x02000000 /* ICH4: PCM2-In interrupt */
134 #define ICH_M2INT 0x01000000 /* ICH4: Mic2-In interrupt */
135 #define ICH_SAMPLE_CAP 0x00c00000 /* ICH4: sample capability bits (RO) */
136 #define ICH_MULTICHAN_CAP 0x00300000 /* ICH4: multi-channel capability bits (RO) */
137 #define ICH_MD3 0x00020000 /* modem power down semaphore */
138 #define ICH_AD3 0x00010000 /* audio power down semaphore */
139 #define ICH_RCS 0x00008000 /* read completion status */
140 #define ICH_BIT3 0x00004000 /* bit 3 slot 12 */
141 #define ICH_BIT2 0x00002000 /* bit 2 slot 12 */
142 #define ICH_BIT1 0x00001000 /* bit 1 slot 12 */
143 #define ICH_SRI 0x00000800 /* secondary (AC_SDIN1) resume interrupt */
144 #define ICH_PRI 0x00000400 /* primary (AC_SDIN0) resume interrupt */
145 #define ICH_SCR 0x00000200 /* secondary (AC_SDIN1) codec ready */
146 #define ICH_PCR 0x00000100 /* primary (AC_SDIN0) codec ready */
147 #define ICH_MCINT 0x00000080 /* MIC capture interrupt */
148 #define ICH_POINT 0x00000040 /* playback interrupt */
149 #define ICH_PIINT 0x00000020 /* capture interrupt */
150 #define ICH_NVSPINT 0x00000010 /* nforce spdif interrupt */
151 #define ICH_MOINT 0x00000004 /* modem playback interrupt */
152 #define ICH_MIINT 0x00000002 /* modem capture interrupt */
153 #define ICH_GSCI 0x00000001 /* GPI status change interrupt */
154 #define ICH_REG_ACC_SEMA 0x44 /* byte - codec write semaphore */
155 #define ICH_CAS 0x01 /* codec access semaphore */
156
157 #define ICH_MAX_FRAGS 32 /* max hw frags */
158
159
160 /*
161 *
162 */
163
164 enum { ICHD_MDMIN, ICHD_MDMOUT, ICHD_MDMLAST = ICHD_MDMOUT };
165 enum { ALID_MDMIN, ALID_MDMOUT, ALID_MDMLAST = ALID_MDMOUT };
166
167 #define get_ichdev(substream) (substream->runtime->private_data)
168
169 struct ichdev {
170 unsigned int ichd; /* ich device number */
171 unsigned long reg_offset; /* offset to bmaddr */
172 u32 *bdbar; /* CPU address (32bit) */
173 unsigned int bdbar_addr; /* PCI bus address (32bit) */
174 struct snd_pcm_substream *substream;
175 unsigned int physbuf; /* physical address (32bit) */
176 unsigned int size;
177 unsigned int fragsize;
178 unsigned int fragsize1;
179 unsigned int position;
180 int frags;
181 int lvi;
182 int lvi_frag;
183 int civ;
184 int ack;
185 int ack_reload;
186 unsigned int ack_bit;
187 unsigned int roff_sr;
188 unsigned int roff_picb;
189 unsigned int int_sta_mask; /* interrupt status mask */
190 unsigned int ali_slot; /* ALI DMA slot */
191 struct snd_ac97 *ac97;
192 };
193
194 struct intel8x0m {
195 unsigned int device_type;
196
197 int irq;
198
199 unsigned int mmio;
200 unsigned long addr;
201 void __iomem *remap_addr;
202 unsigned int bm_mmio;
203 unsigned long bmaddr;
204 void __iomem *remap_bmaddr;
205
206 struct pci_dev *pci;
207 struct snd_card *card;
208
209 int pcm_devs;
210 struct snd_pcm *pcm[2];
211 struct ichdev ichd[2];
212
213 unsigned int in_ac97_init: 1;
214
215 struct snd_ac97_bus *ac97_bus;
216 struct snd_ac97 *ac97;
217
218 spinlock_t reg_lock;
219
220 struct snd_dma_buffer bdbars;
221 u32 bdbars_count;
222 u32 int_sta_reg; /* interrupt status register */
223 u32 int_sta_mask; /* interrupt status mask */
224 unsigned int pcm_pos_shift;
225 };
226
227 static struct pci_device_id snd_intel8x0m_ids[] = {
228 { 0x8086, 0x2416, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801AA */
229 { 0x8086, 0x2426, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82901AB */
230 { 0x8086, 0x2446, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801BA */
231 { 0x8086, 0x2486, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH3 */
232 { 0x8086, 0x24c6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH4 */
233 { 0x8086, 0x24d6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH5 */
234 { 0x8086, 0x266d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH6 */
235 { 0x8086, 0x27dd, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH7 */
236 { 0x8086, 0x7196, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 440MX */
237 { 0x1022, 0x7446, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD768 */
238 { 0x1039, 0x7013, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_SIS }, /* SI7013 */
239 { 0x10de, 0x01c1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE */
240 { 0x10de, 0x0069, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE2 */
241 { 0x10de, 0x0089, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE2s */
242 { 0x10de, 0x00d9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE3 */
243 #if 0
244 { 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD8111 */
245 { 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI }, /* Ali5455 */
246 #endif
247 { 0, }
248 };
249
250 MODULE_DEVICE_TABLE(pci, snd_intel8x0m_ids);
251
252 /*
253 * Lowlevel I/O - busmaster
254 */
255
256 static u8 igetbyte(struct intel8x0m *chip, u32 offset)
257 {
258 if (chip->bm_mmio)
259 return readb(chip->remap_bmaddr + offset);
260 else
261 return inb(chip->bmaddr + offset);
262 }
263
264 static u16 igetword(struct intel8x0m *chip, u32 offset)
265 {
266 if (chip->bm_mmio)
267 return readw(chip->remap_bmaddr + offset);
268 else
269 return inw(chip->bmaddr + offset);
270 }
271
272 static u32 igetdword(struct intel8x0m *chip, u32 offset)
273 {
274 if (chip->bm_mmio)
275 return readl(chip->remap_bmaddr + offset);
276 else
277 return inl(chip->bmaddr + offset);
278 }
279
280 static void iputbyte(struct intel8x0m *chip, u32 offset, u8 val)
281 {
282 if (chip->bm_mmio)
283 writeb(val, chip->remap_bmaddr + offset);
284 else
285 outb(val, chip->bmaddr + offset);
286 }
287
288 static void iputword(struct intel8x0m *chip, u32 offset, u16 val)
289 {
290 if (chip->bm_mmio)
291 writew(val, chip->remap_bmaddr + offset);
292 else
293 outw(val, chip->bmaddr + offset);
294 }
295
296 static void iputdword(struct intel8x0m *chip, u32 offset, u32 val)
297 {
298 if (chip->bm_mmio)
299 writel(val, chip->remap_bmaddr + offset);
300 else
301 outl(val, chip->bmaddr + offset);
302 }
303
304 /*
305 * Lowlevel I/O - AC'97 registers
306 */
307
308 static u16 iagetword(struct intel8x0m *chip, u32 offset)
309 {
310 if (chip->mmio)
311 return readw(chip->remap_addr + offset);
312 else
313 return inw(chip->addr + offset);
314 }
315
316 static void iaputword(struct intel8x0m *chip, u32 offset, u16 val)
317 {
318 if (chip->mmio)
319 writew(val, chip->remap_addr + offset);
320 else
321 outw(val, chip->addr + offset);
322 }
323
324 /*
325 * Basic I/O
326 */
327
328 /*
329 * access to AC97 codec via normal i/o (for ICH and SIS7013)
330 */
331
332 /* return the GLOB_STA bit for the corresponding codec */
333 static unsigned int get_ich_codec_bit(struct intel8x0m *chip, unsigned int codec)
334 {
335 static unsigned int codec_bit[3] = {
336 ICH_PCR, ICH_SCR, ICH_TCR
337 };
338 snd_assert(codec < 3, return ICH_PCR);
339 return codec_bit[codec];
340 }
341
342 static int snd_intel8x0m_codec_semaphore(struct intel8x0m *chip, unsigned int codec)
343 {
344 int time;
345
346 if (codec > 1)
347 return -EIO;
348 codec = get_ich_codec_bit(chip, codec);
349
350 /* codec ready ? */
351 if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
352 return -EIO;
353
354 /* Anyone holding a semaphore for 1 msec should be shot... */
355 time = 100;
356 do {
357 if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
358 return 0;
359 udelay(10);
360 } while (time--);
361
362 /* access to some forbidden (non existant) ac97 registers will not
363 * reset the semaphore. So even if you don't get the semaphore, still
364 * continue the access. We don't need the semaphore anyway. */
365 snd_printk(KERN_ERR "codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
366 igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
367 iagetword(chip, 0); /* clear semaphore flag */
368 /* I don't care about the semaphore */
369 return -EBUSY;
370 }
371
372 static void snd_intel8x0_codec_write(struct snd_ac97 *ac97,
373 unsigned short reg,
374 unsigned short val)
375 {
376 struct intel8x0m *chip = ac97->private_data;
377
378 if (snd_intel8x0m_codec_semaphore(chip, ac97->num) < 0) {
379 if (! chip->in_ac97_init)
380 snd_printk(KERN_ERR "codec_write %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
381 }
382 iaputword(chip, reg + ac97->num * 0x80, val);
383 }
384
385 static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97,
386 unsigned short reg)
387 {
388 struct intel8x0m *chip = ac97->private_data;
389 unsigned short res;
390 unsigned int tmp;
391
392 if (snd_intel8x0m_codec_semaphore(chip, ac97->num) < 0) {
393 if (! chip->in_ac97_init)
394 snd_printk(KERN_ERR "codec_read %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
395 res = 0xffff;
396 } else {
397 res = iagetword(chip, reg + ac97->num * 0x80);
398 if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
399 /* reset RCS and preserve other R/WC bits */
400 iputdword(chip, ICHREG(GLOB_STA),
401 tmp & ~(ICH_SRI|ICH_PRI|ICH_TRI|ICH_GSCI));
402 if (! chip->in_ac97_init)
403 snd_printk(KERN_ERR "codec_read %d: read timeout for register 0x%x\n", ac97->num, reg);
404 res = 0xffff;
405 }
406 }
407 if (reg == AC97_GPIO_STATUS)
408 iagetword(chip, 0); /* clear semaphore */
409 return res;
410 }
411
412
413 /*
414 * DMA I/O
415 */
416 static void snd_intel8x0_setup_periods(struct intel8x0m *chip, struct ichdev *ichdev)
417 {
418 int idx;
419 u32 *bdbar = ichdev->bdbar;
420 unsigned long port = ichdev->reg_offset;
421
422 iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
423 if (ichdev->size == ichdev->fragsize) {
424 ichdev->ack_reload = ichdev->ack = 2;
425 ichdev->fragsize1 = ichdev->fragsize >> 1;
426 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
427 bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
428 bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
429 ichdev->fragsize1 >> chip->pcm_pos_shift);
430 bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
431 bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
432 ichdev->fragsize1 >> chip->pcm_pos_shift);
433 }
434 ichdev->frags = 2;
435 } else {
436 ichdev->ack_reload = ichdev->ack = 1;
437 ichdev->fragsize1 = ichdev->fragsize;
438 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
439 bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf + (((idx >> 1) * ichdev->fragsize) % ichdev->size));
440 bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
441 ichdev->fragsize >> chip->pcm_pos_shift);
442 // printk("bdbar[%i] = 0x%x [0x%x]\n", idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
443 }
444 ichdev->frags = ichdev->size / ichdev->fragsize;
445 }
446 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
447 ichdev->civ = 0;
448 iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
449 ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
450 ichdev->position = 0;
451 #if 0
452 printk("lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
453 ichdev->lvi_frag, ichdev->frags, ichdev->fragsize, ichdev->fragsize1);
454 #endif
455 /* clear interrupts */
456 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
457 }
458
459 /*
460 * Interrupt handler
461 */
462
463 static inline void snd_intel8x0_update(struct intel8x0m *chip, struct ichdev *ichdev)
464 {
465 unsigned long port = ichdev->reg_offset;
466 int civ, i, step;
467 int ack = 0;
468
469 civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
470 if (civ == ichdev->civ) {
471 // snd_printd("civ same %d\n", civ);
472 step = 1;
473 ichdev->civ++;
474 ichdev->civ &= ICH_REG_LVI_MASK;
475 } else {
476 step = civ - ichdev->civ;
477 if (step < 0)
478 step += ICH_REG_LVI_MASK + 1;
479 // if (step != 1)
480 // snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
481 ichdev->civ = civ;
482 }
483
484 ichdev->position += step * ichdev->fragsize1;
485 ichdev->position %= ichdev->size;
486 ichdev->lvi += step;
487 ichdev->lvi &= ICH_REG_LVI_MASK;
488 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
489 for (i = 0; i < step; i++) {
490 ichdev->lvi_frag++;
491 ichdev->lvi_frag %= ichdev->frags;
492 ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf +
493 ichdev->lvi_frag *
494 ichdev->fragsize1);
495 #if 0
496 printk("new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n",
497 ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
498 ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
499 inl(port + 4), inb(port + ICH_REG_OFF_CR));
500 #endif
501 if (--ichdev->ack == 0) {
502 ichdev->ack = ichdev->ack_reload;
503 ack = 1;
504 }
505 }
506 if (ack && ichdev->substream) {
507 spin_unlock(&chip->reg_lock);
508 snd_pcm_period_elapsed(ichdev->substream);
509 spin_lock(&chip->reg_lock);
510 }
511 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
512 }
513
514 static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id)
515 {
516 struct intel8x0m *chip = dev_id;
517 struct ichdev *ichdev;
518 unsigned int status;
519 unsigned int i;
520
521 spin_lock(&chip->reg_lock);
522 status = igetdword(chip, chip->int_sta_reg);
523 if (status == 0xffffffff) { /* we are not yet resumed */
524 spin_unlock(&chip->reg_lock);
525 return IRQ_NONE;
526 }
527 if ((status & chip->int_sta_mask) == 0) {
528 if (status)
529 iputdword(chip, chip->int_sta_reg, status);
530 spin_unlock(&chip->reg_lock);
531 return IRQ_NONE;
532 }
533
534 for (i = 0; i < chip->bdbars_count; i++) {
535 ichdev = &chip->ichd[i];
536 if (status & ichdev->int_sta_mask)
537 snd_intel8x0_update(chip, ichdev);
538 }
539
540 /* ack them */
541 iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
542 spin_unlock(&chip->reg_lock);
543
544 return IRQ_HANDLED;
545 }
546
547 /*
548 * PCM part
549 */
550
551 static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
552 {
553 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
554 struct ichdev *ichdev = get_ichdev(substream);
555 unsigned char val = 0;
556 unsigned long port = ichdev->reg_offset;
557
558 switch (cmd) {
559 case SNDRV_PCM_TRIGGER_START:
560 case SNDRV_PCM_TRIGGER_RESUME:
561 val = ICH_IOCE | ICH_STARTBM;
562 break;
563 case SNDRV_PCM_TRIGGER_STOP:
564 case SNDRV_PCM_TRIGGER_SUSPEND:
565 val = 0;
566 break;
567 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
568 val = ICH_IOCE;
569 break;
570 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
571 val = ICH_IOCE | ICH_STARTBM;
572 break;
573 default:
574 return -EINVAL;
575 }
576 iputbyte(chip, port + ICH_REG_OFF_CR, val);
577 if (cmd == SNDRV_PCM_TRIGGER_STOP) {
578 /* wait until DMA stopped */
579 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
580 /* reset whole DMA things */
581 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
582 }
583 return 0;
584 }
585
586 static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream,
587 struct snd_pcm_hw_params *hw_params)
588 {
589 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
590 }
591
592 static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream)
593 {
594 return snd_pcm_lib_free_pages(substream);
595 }
596
597 static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *substream)
598 {
599 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
600 struct ichdev *ichdev = get_ichdev(substream);
601 size_t ptr1, ptr;
602
603 ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb) << chip->pcm_pos_shift;
604 if (ptr1 != 0)
605 ptr = ichdev->fragsize1 - ptr1;
606 else
607 ptr = 0;
608 ptr += ichdev->position;
609 if (ptr >= ichdev->size)
610 return 0;
611 return bytes_to_frames(substream->runtime, ptr);
612 }
613
614 static int snd_intel8x0m_pcm_prepare(struct snd_pcm_substream *substream)
615 {
616 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
617 struct snd_pcm_runtime *runtime = substream->runtime;
618 struct ichdev *ichdev = get_ichdev(substream);
619
620 ichdev->physbuf = runtime->dma_addr;
621 ichdev->size = snd_pcm_lib_buffer_bytes(substream);
622 ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
623 snd_ac97_write(ichdev->ac97, AC97_LINE1_RATE, runtime->rate);
624 snd_ac97_write(ichdev->ac97, AC97_LINE1_LEVEL, 0);
625 snd_intel8x0_setup_periods(chip, ichdev);
626 return 0;
627 }
628
629 static struct snd_pcm_hardware snd_intel8x0m_stream =
630 {
631 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
632 SNDRV_PCM_INFO_BLOCK_TRANSFER |
633 SNDRV_PCM_INFO_MMAP_VALID |
634 SNDRV_PCM_INFO_PAUSE |
635 SNDRV_PCM_INFO_RESUME),
636 .formats = SNDRV_PCM_FMTBIT_S16_LE,
637 .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_KNOT,
638 .rate_min = 8000,
639 .rate_max = 16000,
640 .channels_min = 1,
641 .channels_max = 1,
642 .buffer_bytes_max = 64 * 1024,
643 .period_bytes_min = 32,
644 .period_bytes_max = 64 * 1024,
645 .periods_min = 1,
646 .periods_max = 1024,
647 .fifo_size = 0,
648 };
649
650
651 static int snd_intel8x0m_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
652 {
653 static unsigned int rates[] = { 8000, 9600, 12000, 16000 };
654 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
655 .count = ARRAY_SIZE(rates),
656 .list = rates,
657 .mask = 0,
658 };
659 struct snd_pcm_runtime *runtime = substream->runtime;
660 int err;
661
662 ichdev->substream = substream;
663 runtime->hw = snd_intel8x0m_stream;
664 err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
665 &hw_constraints_rates);
666 if ( err < 0 )
667 return err;
668 runtime->private_data = ichdev;
669 return 0;
670 }
671
672 static int snd_intel8x0m_playback_open(struct snd_pcm_substream *substream)
673 {
674 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
675
676 return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMOUT]);
677 }
678
679 static int snd_intel8x0m_playback_close(struct snd_pcm_substream *substream)
680 {
681 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
682
683 chip->ichd[ICHD_MDMOUT].substream = NULL;
684 return 0;
685 }
686
687 static int snd_intel8x0m_capture_open(struct snd_pcm_substream *substream)
688 {
689 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
690
691 return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMIN]);
692 }
693
694 static int snd_intel8x0m_capture_close(struct snd_pcm_substream *substream)
695 {
696 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
697
698 chip->ichd[ICHD_MDMIN].substream = NULL;
699 return 0;
700 }
701
702
703 static struct snd_pcm_ops snd_intel8x0m_playback_ops = {
704 .open = snd_intel8x0m_playback_open,
705 .close = snd_intel8x0m_playback_close,
706 .ioctl = snd_pcm_lib_ioctl,
707 .hw_params = snd_intel8x0_hw_params,
708 .hw_free = snd_intel8x0_hw_free,
709 .prepare = snd_intel8x0m_pcm_prepare,
710 .trigger = snd_intel8x0_pcm_trigger,
711 .pointer = snd_intel8x0_pcm_pointer,
712 };
713
714 static struct snd_pcm_ops snd_intel8x0m_capture_ops = {
715 .open = snd_intel8x0m_capture_open,
716 .close = snd_intel8x0m_capture_close,
717 .ioctl = snd_pcm_lib_ioctl,
718 .hw_params = snd_intel8x0_hw_params,
719 .hw_free = snd_intel8x0_hw_free,
720 .prepare = snd_intel8x0m_pcm_prepare,
721 .trigger = snd_intel8x0_pcm_trigger,
722 .pointer = snd_intel8x0_pcm_pointer,
723 };
724
725
726 struct ich_pcm_table {
727 char *suffix;
728 struct snd_pcm_ops *playback_ops;
729 struct snd_pcm_ops *capture_ops;
730 size_t prealloc_size;
731 size_t prealloc_max_size;
732 int ac97_idx;
733 };
734
735 static int __devinit snd_intel8x0_pcm1(struct intel8x0m *chip, int device,
736 struct ich_pcm_table *rec)
737 {
738 struct snd_pcm *pcm;
739 int err;
740 char name[32];
741
742 if (rec->suffix)
743 sprintf(name, "Intel ICH - %s", rec->suffix);
744 else
745 strcpy(name, "Intel ICH");
746 err = snd_pcm_new(chip->card, name, device,
747 rec->playback_ops ? 1 : 0,
748 rec->capture_ops ? 1 : 0, &pcm);
749 if (err < 0)
750 return err;
751
752 if (rec->playback_ops)
753 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
754 if (rec->capture_ops)
755 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
756
757 pcm->private_data = chip;
758 pcm->info_flags = 0;
759 pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
760 if (rec->suffix)
761 sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
762 else
763 strcpy(pcm->name, chip->card->shortname);
764 chip->pcm[device] = pcm;
765
766 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
767 snd_dma_pci_data(chip->pci),
768 rec->prealloc_size,
769 rec->prealloc_max_size);
770
771 return 0;
772 }
773
774 static struct ich_pcm_table intel_pcms[] __devinitdata = {
775 {
776 .suffix = "Modem",
777 .playback_ops = &snd_intel8x0m_playback_ops,
778 .capture_ops = &snd_intel8x0m_capture_ops,
779 .prealloc_size = 32 * 1024,
780 .prealloc_max_size = 64 * 1024,
781 },
782 };
783
784 static int __devinit snd_intel8x0_pcm(struct intel8x0m *chip)
785 {
786 int i, tblsize, device, err;
787 struct ich_pcm_table *tbl, *rec;
788
789 #if 1
790 tbl = intel_pcms;
791 tblsize = 1;
792 #else
793 switch (chip->device_type) {
794 case DEVICE_NFORCE:
795 tbl = nforce_pcms;
796 tblsize = ARRAY_SIZE(nforce_pcms);
797 break;
798 case DEVICE_ALI:
799 tbl = ali_pcms;
800 tblsize = ARRAY_SIZE(ali_pcms);
801 break;
802 default:
803 tbl = intel_pcms;
804 tblsize = 2;
805 break;
806 }
807 #endif
808 device = 0;
809 for (i = 0; i < tblsize; i++) {
810 rec = tbl + i;
811 if (i > 0 && rec->ac97_idx) {
812 /* activate PCM only when associated AC'97 codec */
813 if (! chip->ichd[rec->ac97_idx].ac97)
814 continue;
815 }
816 err = snd_intel8x0_pcm1(chip, device, rec);
817 if (err < 0)
818 return err;
819 device++;
820 }
821
822 chip->pcm_devs = device;
823 return 0;
824 }
825
826
827 /*
828 * Mixer part
829 */
830
831 static void snd_intel8x0_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
832 {
833 struct intel8x0m *chip = bus->private_data;
834 chip->ac97_bus = NULL;
835 }
836
837 static void snd_intel8x0_mixer_free_ac97(struct snd_ac97 *ac97)
838 {
839 struct intel8x0m *chip = ac97->private_data;
840 chip->ac97 = NULL;
841 }
842
843
844 static int __devinit snd_intel8x0_mixer(struct intel8x0m *chip, int ac97_clock)
845 {
846 struct snd_ac97_bus *pbus;
847 struct snd_ac97_template ac97;
848 struct snd_ac97 *x97;
849 int err;
850 unsigned int glob_sta = 0;
851 static struct snd_ac97_bus_ops ops = {
852 .write = snd_intel8x0_codec_write,
853 .read = snd_intel8x0_codec_read,
854 };
855
856 chip->in_ac97_init = 1;
857
858 memset(&ac97, 0, sizeof(ac97));
859 ac97.private_data = chip;
860 ac97.private_free = snd_intel8x0_mixer_free_ac97;
861 ac97.scaps = AC97_SCAP_SKIP_AUDIO;
862
863 glob_sta = igetdword(chip, ICHREG(GLOB_STA));
864
865 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
866 goto __err;
867 pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
868 if (ac97_clock >= 8000 && ac97_clock <= 48000)
869 pbus->clock = ac97_clock;
870 chip->ac97_bus = pbus;
871
872 ac97.pci = chip->pci;
873 ac97.num = glob_sta & ICH_SCR ? 1 : 0;
874 if ((err = snd_ac97_mixer(pbus, &ac97, &x97)) < 0) {
875 snd_printk(KERN_ERR "Unable to initialize codec #%d\n", ac97.num);
876 if (ac97.num == 0)
877 goto __err;
878 return err;
879 }
880 chip->ac97 = x97;
881 if(ac97_is_modem(x97) && !chip->ichd[ICHD_MDMIN].ac97) {
882 chip->ichd[ICHD_MDMIN].ac97 = x97;
883 chip->ichd[ICHD_MDMOUT].ac97 = x97;
884 }
885
886 chip->in_ac97_init = 0;
887 return 0;
888
889 __err:
890 /* clear the cold-reset bit for the next chance */
891 if (chip->device_type != DEVICE_ALI)
892 iputdword(chip, ICHREG(GLOB_CNT),
893 igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
894 return err;
895 }
896
897
898 /*
899 *
900 */
901
902 static int snd_intel8x0m_ich_chip_init(struct intel8x0m *chip, int probing)
903 {
904 unsigned long end_time;
905 unsigned int cnt, status, nstatus;
906
907 /* put logic to right state */
908 /* first clear status bits */
909 status = ICH_RCS | ICH_MIINT | ICH_MOINT;
910 cnt = igetdword(chip, ICHREG(GLOB_STA));
911 iputdword(chip, ICHREG(GLOB_STA), cnt & status);
912
913 /* ACLink on, 2 channels */
914 cnt = igetdword(chip, ICHREG(GLOB_CNT));
915 cnt &= ~(ICH_ACLINK);
916 /* finish cold or do warm reset */
917 cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
918 iputdword(chip, ICHREG(GLOB_CNT), cnt);
919 end_time = (jiffies + (HZ / 4)) + 1;
920 do {
921 if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
922 goto __ok;
923 schedule_timeout_uninterruptible(1);
924 } while (time_after_eq(end_time, jiffies));
925 snd_printk(KERN_ERR "AC'97 warm reset still in progress? [0x%x]\n",
926 igetdword(chip, ICHREG(GLOB_CNT)));
927 return -EIO;
928
929 __ok:
930 if (probing) {
931 /* wait for any codec ready status.
932 * Once it becomes ready it should remain ready
933 * as long as we do not disable the ac97 link.
934 */
935 end_time = jiffies + HZ;
936 do {
937 status = igetdword(chip, ICHREG(GLOB_STA)) &
938 (ICH_PCR | ICH_SCR | ICH_TCR);
939 if (status)
940 break;
941 schedule_timeout_uninterruptible(1);
942 } while (time_after_eq(end_time, jiffies));
943 if (! status) {
944 /* no codec is found */
945 snd_printk(KERN_ERR "codec_ready: codec is not ready [0x%x]\n",
946 igetdword(chip, ICHREG(GLOB_STA)));
947 return -EIO;
948 }
949
950 /* up to two codecs (modem cannot be tertiary with ICH4) */
951 nstatus = ICH_PCR | ICH_SCR;
952
953 /* wait for other codecs ready status. */
954 end_time = jiffies + HZ / 4;
955 while (status != nstatus && time_after_eq(end_time, jiffies)) {
956 schedule_timeout_uninterruptible(1);
957 status |= igetdword(chip, ICHREG(GLOB_STA)) & nstatus;
958 }
959
960 } else {
961 /* resume phase */
962 status = 0;
963 if (chip->ac97)
964 status |= get_ich_codec_bit(chip, chip->ac97->num);
965 /* wait until all the probed codecs are ready */
966 end_time = jiffies + HZ;
967 do {
968 nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
969 (ICH_PCR | ICH_SCR | ICH_TCR);
970 if (status == nstatus)
971 break;
972 schedule_timeout_uninterruptible(1);
973 } while (time_after_eq(end_time, jiffies));
974 }
975
976 if (chip->device_type == DEVICE_SIS) {
977 /* unmute the output on SIS7012 */
978 iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
979 }
980
981 return 0;
982 }
983
984 static int snd_intel8x0_chip_init(struct intel8x0m *chip, int probing)
985 {
986 unsigned int i;
987 int err;
988
989 if ((err = snd_intel8x0m_ich_chip_init(chip, probing)) < 0)
990 return err;
991 iagetword(chip, 0); /* clear semaphore flag */
992
993 /* disable interrupts */
994 for (i = 0; i < chip->bdbars_count; i++)
995 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
996 /* reset channels */
997 for (i = 0; i < chip->bdbars_count; i++)
998 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
999 /* initialize Buffer Descriptor Lists */
1000 for (i = 0; i < chip->bdbars_count; i++)
1001 iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset, chip->ichd[i].bdbar_addr);
1002 return 0;
1003 }
1004
1005 static int snd_intel8x0_free(struct intel8x0m *chip)
1006 {
1007 unsigned int i;
1008
1009 if (chip->irq < 0)
1010 goto __hw_end;
1011 /* disable interrupts */
1012 for (i = 0; i < chip->bdbars_count; i++)
1013 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
1014 /* reset channels */
1015 for (i = 0; i < chip->bdbars_count; i++)
1016 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
1017 /* --- */
1018 synchronize_irq(chip->irq);
1019 __hw_end:
1020 if (chip->bdbars.area)
1021 snd_dma_free_pages(&chip->bdbars);
1022 if (chip->remap_addr)
1023 iounmap(chip->remap_addr);
1024 if (chip->remap_bmaddr)
1025 iounmap(chip->remap_bmaddr);
1026 if (chip->irq >= 0)
1027 free_irq(chip->irq, chip);
1028 pci_release_regions(chip->pci);
1029 pci_disable_device(chip->pci);
1030 kfree(chip);
1031 return 0;
1032 }
1033
1034 #ifdef CONFIG_PM
1035 /*
1036 * power management
1037 */
1038 static int intel8x0m_suspend(struct pci_dev *pci, pm_message_t state)
1039 {
1040 struct snd_card *card = pci_get_drvdata(pci);
1041 struct intel8x0m *chip = card->private_data;
1042 int i;
1043
1044 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1045 for (i = 0; i < chip->pcm_devs; i++)
1046 snd_pcm_suspend_all(chip->pcm[i]);
1047 snd_ac97_suspend(chip->ac97);
1048 if (chip->irq >= 0) {
1049 synchronize_irq(chip->irq);
1050 free_irq(chip->irq, chip);
1051 chip->irq = -1;
1052 }
1053 pci_disable_device(pci);
1054 pci_save_state(pci);
1055 pci_set_power_state(pci, pci_choose_state(pci, state));
1056 return 0;
1057 }
1058
1059 static int intel8x0m_resume(struct pci_dev *pci)
1060 {
1061 struct snd_card *card = pci_get_drvdata(pci);
1062 struct intel8x0m *chip = card->private_data;
1063
1064 pci_set_power_state(pci, PCI_D0);
1065 pci_restore_state(pci);
1066 if (pci_enable_device(pci) < 0) {
1067 printk(KERN_ERR "intel8x0m: pci_enable_device failed, "
1068 "disabling device\n");
1069 snd_card_disconnect(card);
1070 return -EIO;
1071 }
1072 pci_set_master(pci);
1073 if (request_irq(pci->irq, snd_intel8x0_interrupt,
1074 IRQF_SHARED, card->shortname, chip)) {
1075 printk(KERN_ERR "intel8x0m: unable to grab IRQ %d, "
1076 "disabling device\n", pci->irq);
1077 snd_card_disconnect(card);
1078 return -EIO;
1079 }
1080 chip->irq = pci->irq;
1081 snd_intel8x0_chip_init(chip, 0);
1082 snd_ac97_resume(chip->ac97);
1083
1084 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1085 return 0;
1086 }
1087 #endif /* CONFIG_PM */
1088
1089 #ifdef CONFIG_PROC_FS
1090 static void snd_intel8x0m_proc_read(struct snd_info_entry * entry,
1091 struct snd_info_buffer *buffer)
1092 {
1093 struct intel8x0m *chip = entry->private_data;
1094 unsigned int tmp;
1095
1096 snd_iprintf(buffer, "Intel8x0m\n\n");
1097 if (chip->device_type == DEVICE_ALI)
1098 return;
1099 tmp = igetdword(chip, ICHREG(GLOB_STA));
1100 snd_iprintf(buffer, "Global control : 0x%08x\n",
1101 igetdword(chip, ICHREG(GLOB_CNT)));
1102 snd_iprintf(buffer, "Global status : 0x%08x\n", tmp);
1103 snd_iprintf(buffer, "AC'97 codecs ready :%s%s%s%s\n",
1104 tmp & ICH_PCR ? " primary" : "",
1105 tmp & ICH_SCR ? " secondary" : "",
1106 tmp & ICH_TCR ? " tertiary" : "",
1107 (tmp & (ICH_PCR | ICH_SCR | ICH_TCR)) == 0 ? " none" : "");
1108 }
1109
1110 static void __devinit snd_intel8x0m_proc_init(struct intel8x0m * chip)
1111 {
1112 struct snd_info_entry *entry;
1113
1114 if (! snd_card_proc_new(chip->card, "intel8x0m", &entry))
1115 snd_info_set_text_ops(entry, chip, snd_intel8x0m_proc_read);
1116 }
1117 #else /* !CONFIG_PROC_FS */
1118 #define snd_intel8x0m_proc_init(chip)
1119 #endif /* CONFIG_PROC_FS */
1120
1121
1122 static int snd_intel8x0_dev_free(struct snd_device *device)
1123 {
1124 struct intel8x0m *chip = device->device_data;
1125 return snd_intel8x0_free(chip);
1126 }
1127
1128 struct ich_reg_info {
1129 unsigned int int_sta_mask;
1130 unsigned int offset;
1131 };
1132
1133 static int __devinit snd_intel8x0m_create(struct snd_card *card,
1134 struct pci_dev *pci,
1135 unsigned long device_type,
1136 struct intel8x0m ** r_intel8x0)
1137 {
1138 struct intel8x0m *chip;
1139 int err;
1140 unsigned int i;
1141 unsigned int int_sta_masks;
1142 struct ichdev *ichdev;
1143 static struct snd_device_ops ops = {
1144 .dev_free = snd_intel8x0_dev_free,
1145 };
1146 static struct ich_reg_info intel_regs[2] = {
1147 { ICH_MIINT, 0 },
1148 { ICH_MOINT, 0x10 },
1149 };
1150 struct ich_reg_info *tbl;
1151
1152 *r_intel8x0 = NULL;
1153
1154 if ((err = pci_enable_device(pci)) < 0)
1155 return err;
1156
1157 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1158 if (chip == NULL) {
1159 pci_disable_device(pci);
1160 return -ENOMEM;
1161 }
1162 spin_lock_init(&chip->reg_lock);
1163 chip->device_type = device_type;
1164 chip->card = card;
1165 chip->pci = pci;
1166 chip->irq = -1;
1167
1168 if ((err = pci_request_regions(pci, card->shortname)) < 0) {
1169 kfree(chip);
1170 pci_disable_device(pci);
1171 return err;
1172 }
1173
1174 if (device_type == DEVICE_ALI) {
1175 /* ALI5455 has no ac97 region */
1176 chip->bmaddr = pci_resource_start(pci, 0);
1177 goto port_inited;
1178 }
1179
1180 if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) { /* ICH4 and Nforce */
1181 chip->mmio = 1;
1182 chip->addr = pci_resource_start(pci, 2);
1183 chip->remap_addr = ioremap_nocache(chip->addr,
1184 pci_resource_len(pci, 2));
1185 if (chip->remap_addr == NULL) {
1186 snd_printk(KERN_ERR "AC'97 space ioremap problem\n");
1187 snd_intel8x0_free(chip);
1188 return -EIO;
1189 }
1190 } else {
1191 chip->addr = pci_resource_start(pci, 0);
1192 }
1193 if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) { /* ICH4 */
1194 chip->bm_mmio = 1;
1195 chip->bmaddr = pci_resource_start(pci, 3);
1196 chip->remap_bmaddr = ioremap_nocache(chip->bmaddr,
1197 pci_resource_len(pci, 3));
1198 if (chip->remap_bmaddr == NULL) {
1199 snd_printk(KERN_ERR "Controller space ioremap problem\n");
1200 snd_intel8x0_free(chip);
1201 return -EIO;
1202 }
1203 } else {
1204 chip->bmaddr = pci_resource_start(pci, 1);
1205 }
1206
1207 port_inited:
1208 if (request_irq(pci->irq, snd_intel8x0_interrupt, IRQF_SHARED,
1209 card->shortname, chip)) {
1210 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1211 snd_intel8x0_free(chip);
1212 return -EBUSY;
1213 }
1214 chip->irq = pci->irq;
1215 pci_set_master(pci);
1216 synchronize_irq(chip->irq);
1217
1218 /* initialize offsets */
1219 chip->bdbars_count = 2;
1220 tbl = intel_regs;
1221
1222 for (i = 0; i < chip->bdbars_count; i++) {
1223 ichdev = &chip->ichd[i];
1224 ichdev->ichd = i;
1225 ichdev->reg_offset = tbl[i].offset;
1226 ichdev->int_sta_mask = tbl[i].int_sta_mask;
1227 if (device_type == DEVICE_SIS) {
1228 /* SiS 7013 swaps the registers */
1229 ichdev->roff_sr = ICH_REG_OFF_PICB;
1230 ichdev->roff_picb = ICH_REG_OFF_SR;
1231 } else {
1232 ichdev->roff_sr = ICH_REG_OFF_SR;
1233 ichdev->roff_picb = ICH_REG_OFF_PICB;
1234 }
1235 if (device_type == DEVICE_ALI)
1236 ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
1237 }
1238 /* SIS7013 handles the pcm data in bytes, others are in words */
1239 chip->pcm_pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
1240
1241 /* allocate buffer descriptor lists */
1242 /* the start of each lists must be aligned to 8 bytes */
1243 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1244 chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
1245 &chip->bdbars) < 0) {
1246 snd_intel8x0_free(chip);
1247 return -ENOMEM;
1248 }
1249 /* tables must be aligned to 8 bytes here, but the kernel pages
1250 are much bigger, so we don't care (on i386) */
1251 int_sta_masks = 0;
1252 for (i = 0; i < chip->bdbars_count; i++) {
1253 ichdev = &chip->ichd[i];
1254 ichdev->bdbar = ((u32 *)chip->bdbars.area) + (i * ICH_MAX_FRAGS * 2);
1255 ichdev->bdbar_addr = chip->bdbars.addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
1256 int_sta_masks |= ichdev->int_sta_mask;
1257 }
1258 chip->int_sta_reg = ICH_REG_GLOB_STA;
1259 chip->int_sta_mask = int_sta_masks;
1260
1261 if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
1262 snd_intel8x0_free(chip);
1263 return err;
1264 }
1265
1266 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1267 snd_intel8x0_free(chip);
1268 return err;
1269 }
1270
1271 snd_card_set_dev(card, &pci->dev);
1272
1273 *r_intel8x0 = chip;
1274 return 0;
1275 }
1276
1277 static struct shortname_table {
1278 unsigned int id;
1279 const char *s;
1280 } shortnames[] __devinitdata = {
1281 { PCI_DEVICE_ID_INTEL_82801AA_6, "Intel 82801AA-ICH" },
1282 { PCI_DEVICE_ID_INTEL_82801AB_6, "Intel 82901AB-ICH0" },
1283 { PCI_DEVICE_ID_INTEL_82801BA_6, "Intel 82801BA-ICH2" },
1284 { PCI_DEVICE_ID_INTEL_440MX_6, "Intel 440MX" },
1285 { PCI_DEVICE_ID_INTEL_82801CA_6, "Intel 82801CA-ICH3" },
1286 { PCI_DEVICE_ID_INTEL_82801DB_6, "Intel 82801DB-ICH4" },
1287 { PCI_DEVICE_ID_INTEL_82801EB_6, "Intel ICH5" },
1288 { PCI_DEVICE_ID_INTEL_ICH6_17, "Intel ICH6" },
1289 { PCI_DEVICE_ID_INTEL_ICH7_19, "Intel ICH7" },
1290 { 0x7446, "AMD AMD768" },
1291 { PCI_DEVICE_ID_SI_7013, "SiS SI7013" },
1292 { PCI_DEVICE_ID_NVIDIA_MCP1_MODEM, "NVidia nForce" },
1293 { PCI_DEVICE_ID_NVIDIA_MCP2_MODEM, "NVidia nForce2" },
1294 { PCI_DEVICE_ID_NVIDIA_MCP2S_MODEM, "NVidia nForce2s" },
1295 { PCI_DEVICE_ID_NVIDIA_MCP3_MODEM, "NVidia nForce3" },
1296 #if 0
1297 { 0x5455, "ALi M5455" },
1298 { 0x746d, "AMD AMD8111" },
1299 #endif
1300 { 0 },
1301 };
1302
1303 static int __devinit snd_intel8x0m_probe(struct pci_dev *pci,
1304 const struct pci_device_id *pci_id)
1305 {
1306 struct snd_card *card;
1307 struct intel8x0m *chip;
1308 int err;
1309 struct shortname_table *name;
1310
1311 card = snd_card_new(index, id, THIS_MODULE, 0);
1312 if (card == NULL)
1313 return -ENOMEM;
1314
1315 strcpy(card->driver, "ICH-MODEM");
1316 strcpy(card->shortname, "Intel ICH");
1317 for (name = shortnames; name->id; name++) {
1318 if (pci->device == name->id) {
1319 strcpy(card->shortname, name->s);
1320 break;
1321 }
1322 }
1323 strcat(card->shortname," Modem");
1324
1325 if ((err = snd_intel8x0m_create(card, pci, pci_id->driver_data, &chip)) < 0) {
1326 snd_card_free(card);
1327 return err;
1328 }
1329 card->private_data = chip;
1330
1331 if ((err = snd_intel8x0_mixer(chip, ac97_clock)) < 0) {
1332 snd_card_free(card);
1333 return err;
1334 }
1335 if ((err = snd_intel8x0_pcm(chip)) < 0) {
1336 snd_card_free(card);
1337 return err;
1338 }
1339
1340 snd_intel8x0m_proc_init(chip);
1341
1342 sprintf(card->longname, "%s at 0x%lx, irq %i",
1343 card->shortname, chip->addr, chip->irq);
1344
1345 if ((err = snd_card_register(card)) < 0) {
1346 snd_card_free(card);
1347 return err;
1348 }
1349 pci_set_drvdata(pci, card);
1350 return 0;
1351 }
1352
1353 static void __devexit snd_intel8x0m_remove(struct pci_dev *pci)
1354 {
1355 snd_card_free(pci_get_drvdata(pci));
1356 pci_set_drvdata(pci, NULL);
1357 }
1358
1359 static struct pci_driver driver = {
1360 .name = "Intel ICH Modem",
1361 .id_table = snd_intel8x0m_ids,
1362 .probe = snd_intel8x0m_probe,
1363 .remove = __devexit_p(snd_intel8x0m_remove),
1364 #ifdef CONFIG_PM
1365 .suspend = intel8x0m_suspend,
1366 .resume = intel8x0m_resume,
1367 #endif
1368 };
1369
1370
1371 static int __init alsa_card_intel8x0m_init(void)
1372 {
1373 return pci_register_driver(&driver);
1374 }
1375
1376 static void __exit alsa_card_intel8x0m_exit(void)
1377 {
1378 pci_unregister_driver(&driver);
1379 }
1380
1381 module_init(alsa_card_intel8x0m_init)
1382 module_exit(alsa_card_intel8x0m_exit)
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