~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/sound/pci/intel8x0.c

Version: ~ [ linux-5.19-rc8 ] ~ [ linux-5.18.14 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.57 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.133 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.207 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.253 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.289 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.324 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.302 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.9 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 // SPDX-License-Identifier: GPL-2.0-or-later
  2 /*
  3  *   ALSA driver for Intel ICH (i8x0) chipsets
  4  *
  5  *      Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
  6  *
  7  *   This code also contains alpha support for SiS 735 chipsets provided
  8  *   by Mike Pieper <mptei@users.sourceforge.net>. We have no datasheet
  9  *   for SiS735, so the code is not fully functional.
 10  *
 11 
 12  */      
 13 
 14 #include <linux/io.h>
 15 #include <linux/delay.h>
 16 #include <linux/interrupt.h>
 17 #include <linux/init.h>
 18 #include <linux/pci.h>
 19 #include <linux/slab.h>
 20 #include <linux/module.h>
 21 #include <sound/core.h>
 22 #include <sound/pcm.h>
 23 #include <sound/ac97_codec.h>
 24 #include <sound/info.h>
 25 #include <sound/initval.h>
 26 
 27 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 28 MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455");
 29 MODULE_LICENSE("GPL");
 30 
 31 static int index = SNDRV_DEFAULT_IDX1;  /* Index 0-MAX */
 32 static char *id = SNDRV_DEFAULT_STR1;   /* ID for this card */
 33 static int ac97_clock;
 34 static char *ac97_quirk;
 35 static bool buggy_semaphore;
 36 static int buggy_irq = -1; /* auto-check */
 37 static bool xbox;
 38 static int spdif_aclink = -1;
 39 static int inside_vm = -1;
 40 
 41 module_param(index, int, 0444);
 42 MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard.");
 43 module_param(id, charp, 0444);
 44 MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard.");
 45 module_param(ac97_clock, int, 0444);
 46 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = allowlist + auto-detect, 1 = force autodetect).");
 47 module_param(ac97_quirk, charp, 0444);
 48 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
 49 module_param(buggy_semaphore, bool, 0444);
 50 MODULE_PARM_DESC(buggy_semaphore, "Enable workaround for hardwares with problematic codec semaphores.");
 51 module_param(buggy_irq, bint, 0444);
 52 MODULE_PARM_DESC(buggy_irq, "Enable workaround for buggy interrupts on some motherboards.");
 53 module_param(xbox, bool, 0444);
 54 MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection.");
 55 module_param(spdif_aclink, int, 0444);
 56 MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link.");
 57 module_param(inside_vm, bint, 0444);
 58 MODULE_PARM_DESC(inside_vm, "KVM/Parallels optimization.");
 59 
 60 /* just for backward compatibility */
 61 static bool enable;
 62 module_param(enable, bool, 0444);
 63 static int joystick;
 64 module_param(joystick, int, 0444);
 65 
 66 /*
 67  *  Direct registers
 68  */
 69 enum { DEVICE_INTEL, DEVICE_INTEL_ICH4, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
 70 
 71 #define ICHREG(x) ICH_REG_##x
 72 
 73 #define DEFINE_REGSET(name,base) \
 74 enum { \
 75         ICH_REG_##name##_BDBAR  = base + 0x0,   /* dword - buffer descriptor list base address */ \
 76         ICH_REG_##name##_CIV    = base + 0x04,  /* byte - current index value */ \
 77         ICH_REG_##name##_LVI    = base + 0x05,  /* byte - last valid index */ \
 78         ICH_REG_##name##_SR     = base + 0x06,  /* byte - status register */ \
 79         ICH_REG_##name##_PICB   = base + 0x08,  /* word - position in current buffer */ \
 80         ICH_REG_##name##_PIV    = base + 0x0a,  /* byte - prefetched index value */ \
 81         ICH_REG_##name##_CR     = base + 0x0b,  /* byte - control register */ \
 82 }
 83 
 84 /* busmaster blocks */
 85 DEFINE_REGSET(OFF, 0);          /* offset */
 86 DEFINE_REGSET(PI, 0x00);        /* PCM in */
 87 DEFINE_REGSET(PO, 0x10);        /* PCM out */
 88 DEFINE_REGSET(MC, 0x20);        /* Mic in */
 89 
 90 /* ICH4 busmaster blocks */
 91 DEFINE_REGSET(MC2, 0x40);       /* Mic in 2 */
 92 DEFINE_REGSET(PI2, 0x50);       /* PCM in 2 */
 93 DEFINE_REGSET(SP, 0x60);        /* SPDIF out */
 94 
 95 /* values for each busmaster block */
 96 
 97 /* LVI */
 98 #define ICH_REG_LVI_MASK                0x1f
 99 
100 /* SR */
101 #define ICH_FIFOE                       0x10    /* FIFO error */
102 #define ICH_BCIS                        0x08    /* buffer completion interrupt status */
103 #define ICH_LVBCI                       0x04    /* last valid buffer completion interrupt */
104 #define ICH_CELV                        0x02    /* current equals last valid */
105 #define ICH_DCH                         0x01    /* DMA controller halted */
106 
107 /* PIV */
108 #define ICH_REG_PIV_MASK                0x1f    /* mask */
109 
110 /* CR */
111 #define ICH_IOCE                        0x10    /* interrupt on completion enable */
112 #define ICH_FEIE                        0x08    /* fifo error interrupt enable */
113 #define ICH_LVBIE                       0x04    /* last valid buffer interrupt enable */
114 #define ICH_RESETREGS                   0x02    /* reset busmaster registers */
115 #define ICH_STARTBM                     0x01    /* start busmaster operation */
116 
117 
118 /* global block */
119 #define ICH_REG_GLOB_CNT                0x2c    /* dword - global control */
120 #define   ICH_PCM_SPDIF_MASK    0xc0000000      /* s/pdif pcm slot mask (ICH4) */
121 #define   ICH_PCM_SPDIF_NONE    0x00000000      /* reserved - undefined */
122 #define   ICH_PCM_SPDIF_78      0x40000000      /* s/pdif pcm on slots 7&8 */
123 #define   ICH_PCM_SPDIF_69      0x80000000      /* s/pdif pcm on slots 6&9 */
124 #define   ICH_PCM_SPDIF_1011    0xc0000000      /* s/pdif pcm on slots 10&11 */
125 #define   ICH_PCM_20BIT         0x00400000      /* 20-bit samples (ICH4) */
126 #define   ICH_PCM_246_MASK      0x00300000      /* chan mask (not all chips) */
127 #define   ICH_PCM_8             0x00300000      /* 8 channels (not all chips) */
128 #define   ICH_PCM_6             0x00200000      /* 6 channels (not all chips) */
129 #define   ICH_PCM_4             0x00100000      /* 4 channels (not all chips) */
130 #define   ICH_PCM_2             0x00000000      /* 2 channels (stereo) */
131 #define   ICH_SIS_PCM_246_MASK  0x000000c0      /* 6 channels (SIS7012) */
132 #define   ICH_SIS_PCM_6         0x00000080      /* 6 channels (SIS7012) */
133 #define   ICH_SIS_PCM_4         0x00000040      /* 4 channels (SIS7012) */
134 #define   ICH_SIS_PCM_2         0x00000000      /* 2 channels (SIS7012) */
135 #define   ICH_TRIE              0x00000040      /* tertiary resume interrupt enable */
136 #define   ICH_SRIE              0x00000020      /* secondary resume interrupt enable */
137 #define   ICH_PRIE              0x00000010      /* primary resume interrupt enable */
138 #define   ICH_ACLINK            0x00000008      /* AClink shut off */
139 #define   ICH_AC97WARM          0x00000004      /* AC'97 warm reset */
140 #define   ICH_AC97COLD          0x00000002      /* AC'97 cold reset */
141 #define   ICH_GIE               0x00000001      /* GPI interrupt enable */
142 #define ICH_REG_GLOB_STA                0x30    /* dword - global status */
143 #define   ICH_TRI               0x20000000      /* ICH4: tertiary (AC_SDIN2) resume interrupt */
144 #define   ICH_TCR               0x10000000      /* ICH4: tertiary (AC_SDIN2) codec ready */
145 #define   ICH_BCS               0x08000000      /* ICH4: bit clock stopped */
146 #define   ICH_SPINT             0x04000000      /* ICH4: S/PDIF interrupt */
147 #define   ICH_P2INT             0x02000000      /* ICH4: PCM2-In interrupt */
148 #define   ICH_M2INT             0x01000000      /* ICH4: Mic2-In interrupt */
149 #define   ICH_SAMPLE_CAP        0x00c00000      /* ICH4: sample capability bits (RO) */
150 #define   ICH_SAMPLE_16_20      0x00400000      /* ICH4: 16- and 20-bit samples */
151 #define   ICH_MULTICHAN_CAP     0x00300000      /* ICH4: multi-channel capability bits (RO) */
152 #define   ICH_SIS_TRI           0x00080000      /* SIS: tertiary resume irq */
153 #define   ICH_SIS_TCR           0x00040000      /* SIS: tertiary codec ready */
154 #define   ICH_MD3               0x00020000      /* modem power down semaphore */
155 #define   ICH_AD3               0x00010000      /* audio power down semaphore */
156 #define   ICH_RCS               0x00008000      /* read completion status */
157 #define   ICH_BIT3              0x00004000      /* bit 3 slot 12 */
158 #define   ICH_BIT2              0x00002000      /* bit 2 slot 12 */
159 #define   ICH_BIT1              0x00001000      /* bit 1 slot 12 */
160 #define   ICH_SRI               0x00000800      /* secondary (AC_SDIN1) resume interrupt */
161 #define   ICH_PRI               0x00000400      /* primary (AC_SDIN0) resume interrupt */
162 #define   ICH_SCR               0x00000200      /* secondary (AC_SDIN1) codec ready */
163 #define   ICH_PCR               0x00000100      /* primary (AC_SDIN0) codec ready */
164 #define   ICH_MCINT             0x00000080      /* MIC capture interrupt */
165 #define   ICH_POINT             0x00000040      /* playback interrupt */
166 #define   ICH_PIINT             0x00000020      /* capture interrupt */
167 #define   ICH_NVSPINT           0x00000010      /* nforce spdif interrupt */
168 #define   ICH_MOINT             0x00000004      /* modem playback interrupt */
169 #define   ICH_MIINT             0x00000002      /* modem capture interrupt */
170 #define   ICH_GSCI              0x00000001      /* GPI status change interrupt */
171 #define ICH_REG_ACC_SEMA                0x34    /* byte - codec write semaphore */
172 #define   ICH_CAS               0x01            /* codec access semaphore */
173 #define ICH_REG_SDM             0x80
174 #define   ICH_DI2L_MASK         0x000000c0      /* PCM In 2, Mic In 2 data in line */
175 #define   ICH_DI2L_SHIFT        6
176 #define   ICH_DI1L_MASK         0x00000030      /* PCM In 1, Mic In 1 data in line */
177 #define   ICH_DI1L_SHIFT        4
178 #define   ICH_SE                0x00000008      /* steer enable */
179 #define   ICH_LDI_MASK          0x00000003      /* last codec read data input */
180 
181 #define ICH_MAX_FRAGS           32              /* max hw frags */
182 
183 
184 /*
185  * registers for Ali5455
186  */
187 
188 /* ALi 5455 busmaster blocks */
189 DEFINE_REGSET(AL_PI, 0x40);     /* ALi PCM in */
190 DEFINE_REGSET(AL_PO, 0x50);     /* Ali PCM out */
191 DEFINE_REGSET(AL_MC, 0x60);     /* Ali Mic in */
192 DEFINE_REGSET(AL_CDC_SPO, 0x70);        /* Ali Codec SPDIF out */
193 DEFINE_REGSET(AL_CENTER, 0x80);         /* Ali center out */
194 DEFINE_REGSET(AL_LFE, 0x90);            /* Ali center out */
195 DEFINE_REGSET(AL_CLR_SPI, 0xa0);        /* Ali Controller SPDIF in */
196 DEFINE_REGSET(AL_CLR_SPO, 0xb0);        /* Ali Controller SPDIF out */
197 DEFINE_REGSET(AL_I2S, 0xc0);    /* Ali I2S in */
198 DEFINE_REGSET(AL_PI2, 0xd0);    /* Ali PCM2 in */
199 DEFINE_REGSET(AL_MC2, 0xe0);    /* Ali Mic2 in */
200 
201 enum {
202         ICH_REG_ALI_SCR = 0x00,         /* System Control Register */
203         ICH_REG_ALI_SSR = 0x04,         /* System Status Register  */
204         ICH_REG_ALI_DMACR = 0x08,       /* DMA Control Register    */
205         ICH_REG_ALI_FIFOCR1 = 0x0c,     /* FIFO Control Register 1  */
206         ICH_REG_ALI_INTERFACECR = 0x10, /* Interface Control Register */
207         ICH_REG_ALI_INTERRUPTCR = 0x14, /* Interrupt control Register */
208         ICH_REG_ALI_INTERRUPTSR = 0x18, /* Interrupt  Status Register */
209         ICH_REG_ALI_FIFOCR2 = 0x1c,     /* FIFO Control Register 2   */
210         ICH_REG_ALI_CPR = 0x20,         /* Command Port Register     */
211         ICH_REG_ALI_CPR_ADDR = 0x22,    /* ac97 addr write */
212         ICH_REG_ALI_SPR = 0x24,         /* Status Port Register      */
213         ICH_REG_ALI_SPR_ADDR = 0x26,    /* ac97 addr read */
214         ICH_REG_ALI_FIFOCR3 = 0x2c,     /* FIFO Control Register 3  */
215         ICH_REG_ALI_TTSR = 0x30,        /* Transmit Tag Slot Register */
216         ICH_REG_ALI_RTSR = 0x34,        /* Receive Tag Slot  Register */
217         ICH_REG_ALI_CSPSR = 0x38,       /* Command/Status Port Status Register */
218         ICH_REG_ALI_CAS = 0x3c,         /* Codec Write Semaphore Register */
219         ICH_REG_ALI_HWVOL = 0xf0,       /* hardware volume control/status */
220         ICH_REG_ALI_I2SCR = 0xf4,       /* I2S control/status */
221         ICH_REG_ALI_SPDIFCSR = 0xf8,    /* spdif channel status register  */
222         ICH_REG_ALI_SPDIFICS = 0xfc,    /* spdif interface control/status  */
223 };
224 
225 #define ALI_CAS_SEM_BUSY        0x80000000
226 #define ALI_CPR_ADDR_SECONDARY  0x100
227 #define ALI_CPR_ADDR_READ       0x80
228 #define ALI_CSPSR_CODEC_READY   0x08
229 #define ALI_CSPSR_READ_OK       0x02
230 #define ALI_CSPSR_WRITE_OK      0x01
231 
232 /* interrupts for the whole chip by interrupt status register finish */
233  
234 #define ALI_INT_MICIN2          (1<<26)
235 #define ALI_INT_PCMIN2          (1<<25)
236 #define ALI_INT_I2SIN           (1<<24)
237 #define ALI_INT_SPDIFOUT        (1<<23) /* controller spdif out INTERRUPT */
238 #define ALI_INT_SPDIFIN         (1<<22)
239 #define ALI_INT_LFEOUT          (1<<21)
240 #define ALI_INT_CENTEROUT       (1<<20)
241 #define ALI_INT_CODECSPDIFOUT   (1<<19)
242 #define ALI_INT_MICIN           (1<<18)
243 #define ALI_INT_PCMOUT          (1<<17)
244 #define ALI_INT_PCMIN           (1<<16)
245 #define ALI_INT_CPRAIS          (1<<7)  /* command port available */
246 #define ALI_INT_SPRAIS          (1<<5)  /* status port available */
247 #define ALI_INT_GPIO            (1<<1)
248 #define ALI_INT_MASK            (ALI_INT_SPDIFOUT|ALI_INT_CODECSPDIFOUT|\
249                                  ALI_INT_MICIN|ALI_INT_PCMOUT|ALI_INT_PCMIN)
250 
251 #define ICH_ALI_SC_RESET        (1<<31) /* master reset */
252 #define ICH_ALI_SC_AC97_DBL     (1<<30)
253 #define ICH_ALI_SC_CODEC_SPDF   (3<<20) /* 1=7/8, 2=6/9, 3=10/11 */
254 #define ICH_ALI_SC_IN_BITS      (3<<18)
255 #define ICH_ALI_SC_OUT_BITS     (3<<16)
256 #define ICH_ALI_SC_6CH_CFG      (3<<14)
257 #define ICH_ALI_SC_PCM_4        (1<<8)
258 #define ICH_ALI_SC_PCM_6        (2<<8)
259 #define ICH_ALI_SC_PCM_246_MASK (3<<8)
260 
261 #define ICH_ALI_SS_SEC_ID       (3<<5)
262 #define ICH_ALI_SS_PRI_ID       (3<<3)
263 
264 #define ICH_ALI_IF_AC97SP       (1<<21)
265 #define ICH_ALI_IF_MC           (1<<20)
266 #define ICH_ALI_IF_PI           (1<<19)
267 #define ICH_ALI_IF_MC2          (1<<18)
268 #define ICH_ALI_IF_PI2          (1<<17)
269 #define ICH_ALI_IF_LINE_SRC     (1<<15) /* 0/1 = slot 3/6 */
270 #define ICH_ALI_IF_MIC_SRC      (1<<14) /* 0/1 = slot 3/6 */
271 #define ICH_ALI_IF_SPDF_SRC     (3<<12) /* 00 = PCM, 01 = AC97-in, 10 = spdif-in, 11 = i2s */
272 #define ICH_ALI_IF_AC97_OUT     (3<<8)  /* 00 = PCM, 10 = spdif-in, 11 = i2s */
273 #define ICH_ALI_IF_PO_SPDF      (1<<3)
274 #define ICH_ALI_IF_PO           (1<<1)
275 
276 /*
277  *  
278  */
279 
280 enum {
281         ICHD_PCMIN,
282         ICHD_PCMOUT,
283         ICHD_MIC,
284         ICHD_MIC2,
285         ICHD_PCM2IN,
286         ICHD_SPBAR,
287         ICHD_LAST = ICHD_SPBAR
288 };
289 enum {
290         NVD_PCMIN,
291         NVD_PCMOUT,
292         NVD_MIC,
293         NVD_SPBAR,
294         NVD_LAST = NVD_SPBAR
295 };
296 enum {
297         ALID_PCMIN,
298         ALID_PCMOUT,
299         ALID_MIC,
300         ALID_AC97SPDIFOUT,
301         ALID_SPDIFIN,
302         ALID_SPDIFOUT,
303         ALID_LAST = ALID_SPDIFOUT
304 };
305 
306 #define get_ichdev(substream) (substream->runtime->private_data)
307 
308 struct ichdev {
309         unsigned int ichd;                      /* ich device number */
310         unsigned long reg_offset;               /* offset to bmaddr */
311         __le32 *bdbar;                          /* CPU address (32bit) */
312         unsigned int bdbar_addr;                /* PCI bus address (32bit) */
313         struct snd_pcm_substream *substream;
314         unsigned int physbuf;                   /* physical address (32bit) */
315         unsigned int size;
316         unsigned int fragsize;
317         unsigned int fragsize1;
318         unsigned int position;
319         unsigned int pos_shift;
320         unsigned int last_pos;
321         int frags;
322         int lvi;
323         int lvi_frag;
324         int civ;
325         int ack;
326         int ack_reload;
327         unsigned int ack_bit;
328         unsigned int roff_sr;
329         unsigned int roff_picb;
330         unsigned int int_sta_mask;              /* interrupt status mask */
331         unsigned int ali_slot;                  /* ALI DMA slot */
332         struct ac97_pcm *pcm;
333         int pcm_open_flag;
334         unsigned int prepared:1;
335         unsigned int suspended: 1;
336 };
337 
338 struct intel8x0 {
339         unsigned int device_type;
340 
341         int irq;
342 
343         void __iomem *addr;
344         void __iomem *bmaddr;
345 
346         struct pci_dev *pci;
347         struct snd_card *card;
348 
349         int pcm_devs;
350         struct snd_pcm *pcm[6];
351         struct ichdev ichd[6];
352 
353         unsigned multi4: 1,
354                  multi6: 1,
355                  multi8 :1,
356                  dra: 1,
357                  smp20bit: 1;
358         unsigned in_ac97_init: 1,
359                  in_sdin_init: 1;
360         unsigned in_measurement: 1;     /* during ac97 clock measurement */
361         unsigned fix_nocache: 1;        /* workaround for 440MX */
362         unsigned buggy_irq: 1;          /* workaround for buggy mobos */
363         unsigned xbox: 1;               /* workaround for Xbox AC'97 detection */
364         unsigned buggy_semaphore: 1;    /* workaround for buggy codec semaphore */
365         unsigned inside_vm: 1;          /* enable VM optimization */
366 
367         int spdif_idx;  /* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */
368         unsigned int sdm_saved; /* SDM reg value */
369 
370         struct snd_ac97_bus *ac97_bus;
371         struct snd_ac97 *ac97[3];
372         unsigned int ac97_sdin[3];
373         unsigned int max_codecs, ncodecs;
374         const unsigned int *codec_bit;
375         unsigned int codec_isr_bits;
376         unsigned int codec_ready_bits;
377 
378         spinlock_t reg_lock;
379         
380         u32 bdbars_count;
381         struct snd_dma_buffer bdbars;
382         u32 int_sta_reg;                /* interrupt status register */
383         u32 int_sta_mask;               /* interrupt status mask */
384 };
385 
386 static const struct pci_device_id snd_intel8x0_ids[] = {
387         { PCI_VDEVICE(INTEL, 0x2415), DEVICE_INTEL },   /* 82801AA */
388         { PCI_VDEVICE(INTEL, 0x2425), DEVICE_INTEL },   /* 82901AB */
389         { PCI_VDEVICE(INTEL, 0x2445), DEVICE_INTEL },   /* 82801BA */
390         { PCI_VDEVICE(INTEL, 0x2485), DEVICE_INTEL },   /* ICH3 */
391         { PCI_VDEVICE(INTEL, 0x24c5), DEVICE_INTEL_ICH4 }, /* ICH4 */
392         { PCI_VDEVICE(INTEL, 0x24d5), DEVICE_INTEL_ICH4 }, /* ICH5 */
393         { PCI_VDEVICE(INTEL, 0x25a6), DEVICE_INTEL_ICH4 }, /* ESB */
394         { PCI_VDEVICE(INTEL, 0x266e), DEVICE_INTEL_ICH4 }, /* ICH6 */
395         { PCI_VDEVICE(INTEL, 0x27de), DEVICE_INTEL_ICH4 }, /* ICH7 */
396         { PCI_VDEVICE(INTEL, 0x2698), DEVICE_INTEL_ICH4 }, /* ESB2 */
397         { PCI_VDEVICE(INTEL, 0x7195), DEVICE_INTEL },   /* 440MX */
398         { PCI_VDEVICE(SI, 0x7012), DEVICE_SIS },        /* SI7012 */
399         { PCI_VDEVICE(NVIDIA, 0x01b1), DEVICE_NFORCE }, /* NFORCE */
400         { PCI_VDEVICE(NVIDIA, 0x003a), DEVICE_NFORCE }, /* MCP04 */
401         { PCI_VDEVICE(NVIDIA, 0x006a), DEVICE_NFORCE }, /* NFORCE2 */
402         { PCI_VDEVICE(NVIDIA, 0x0059), DEVICE_NFORCE }, /* CK804 */
403         { PCI_VDEVICE(NVIDIA, 0x008a), DEVICE_NFORCE }, /* CK8 */
404         { PCI_VDEVICE(NVIDIA, 0x00da), DEVICE_NFORCE }, /* NFORCE3 */
405         { PCI_VDEVICE(NVIDIA, 0x00ea), DEVICE_NFORCE }, /* CK8S */
406         { PCI_VDEVICE(NVIDIA, 0x026b), DEVICE_NFORCE }, /* MCP51 */
407         { PCI_VDEVICE(AMD, 0x746d), DEVICE_INTEL },     /* AMD8111 */
408         { PCI_VDEVICE(AMD, 0x7445), DEVICE_INTEL },     /* AMD768 */
409         { PCI_VDEVICE(AL, 0x5455), DEVICE_ALI },   /* Ali5455 */
410         { 0, }
411 };
412 
413 MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
414 
415 /*
416  *  Lowlevel I/O - busmaster
417  */
418 
419 static inline u8 igetbyte(struct intel8x0 *chip, u32 offset)
420 {
421         return ioread8(chip->bmaddr + offset);
422 }
423 
424 static inline u16 igetword(struct intel8x0 *chip, u32 offset)
425 {
426         return ioread16(chip->bmaddr + offset);
427 }
428 
429 static inline u32 igetdword(struct intel8x0 *chip, u32 offset)
430 {
431         return ioread32(chip->bmaddr + offset);
432 }
433 
434 static inline void iputbyte(struct intel8x0 *chip, u32 offset, u8 val)
435 {
436         iowrite8(val, chip->bmaddr + offset);
437 }
438 
439 static inline void iputword(struct intel8x0 *chip, u32 offset, u16 val)
440 {
441         iowrite16(val, chip->bmaddr + offset);
442 }
443 
444 static inline void iputdword(struct intel8x0 *chip, u32 offset, u32 val)
445 {
446         iowrite32(val, chip->bmaddr + offset);
447 }
448 
449 /*
450  *  Lowlevel I/O - AC'97 registers
451  */
452 
453 static inline u16 iagetword(struct intel8x0 *chip, u32 offset)
454 {
455         return ioread16(chip->addr + offset);
456 }
457 
458 static inline void iaputword(struct intel8x0 *chip, u32 offset, u16 val)
459 {
460         iowrite16(val, chip->addr + offset);
461 }
462 
463 /*
464  *  Basic I/O
465  */
466 
467 /*
468  * access to AC97 codec via normal i/o (for ICH and SIS7012)
469  */
470 
471 static int snd_intel8x0_codec_semaphore(struct intel8x0 *chip, unsigned int codec)
472 {
473         int time;
474         
475         if (codec > 2)
476                 return -EIO;
477         if (chip->in_sdin_init) {
478                 /* we don't know the ready bit assignment at the moment */
479                 /* so we check any */
480                 codec = chip->codec_isr_bits;
481         } else {
482                 codec = chip->codec_bit[chip->ac97_sdin[codec]];
483         }
484 
485         /* codec ready ? */
486         if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
487                 return -EIO;
488 
489         if (chip->buggy_semaphore)
490                 return 0; /* just ignore ... */
491 
492         /* Anyone holding a semaphore for 1 msec should be shot... */
493         time = 100;
494         do {
495                 if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
496                         return 0;
497                 udelay(10);
498         } while (time--);
499 
500         /* access to some forbidden (non existent) ac97 registers will not
501          * reset the semaphore. So even if you don't get the semaphore, still
502          * continue the access. We don't need the semaphore anyway. */
503         dev_err(chip->card->dev,
504                 "codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
505                         igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
506         iagetword(chip, 0);     /* clear semaphore flag */
507         /* I don't care about the semaphore */
508         return -EBUSY;
509 }
510  
511 static void snd_intel8x0_codec_write(struct snd_ac97 *ac97,
512                                      unsigned short reg,
513                                      unsigned short val)
514 {
515         struct intel8x0 *chip = ac97->private_data;
516         
517         if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
518                 if (! chip->in_ac97_init)
519                         dev_err(chip->card->dev,
520                                 "codec_write %d: semaphore is not ready for register 0x%x\n",
521                                 ac97->num, reg);
522         }
523         iaputword(chip, reg + ac97->num * 0x80, val);
524 }
525 
526 static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97,
527                                               unsigned short reg)
528 {
529         struct intel8x0 *chip = ac97->private_data;
530         unsigned short res;
531         unsigned int tmp;
532 
533         if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
534                 if (! chip->in_ac97_init)
535                         dev_err(chip->card->dev,
536                                 "codec_read %d: semaphore is not ready for register 0x%x\n",
537                                 ac97->num, reg);
538                 res = 0xffff;
539         } else {
540                 res = iagetword(chip, reg + ac97->num * 0x80);
541                 tmp = igetdword(chip, ICHREG(GLOB_STA));
542                 if (tmp & ICH_RCS) {
543                         /* reset RCS and preserve other R/WC bits */
544                         iputdword(chip, ICHREG(GLOB_STA), tmp &
545                                   ~(chip->codec_ready_bits | ICH_GSCI));
546                         if (! chip->in_ac97_init)
547                                 dev_err(chip->card->dev,
548                                         "codec_read %d: read timeout for register 0x%x\n",
549                                         ac97->num, reg);
550                         res = 0xffff;
551                 }
552         }
553         return res;
554 }
555 
556 static void snd_intel8x0_codec_read_test(struct intel8x0 *chip,
557                                          unsigned int codec)
558 {
559         unsigned int tmp;
560 
561         if (snd_intel8x0_codec_semaphore(chip, codec) >= 0) {
562                 iagetword(chip, codec * 0x80);
563                 tmp = igetdword(chip, ICHREG(GLOB_STA));
564                 if (tmp & ICH_RCS) {
565                         /* reset RCS and preserve other R/WC bits */
566                         iputdword(chip, ICHREG(GLOB_STA), tmp &
567                                   ~(chip->codec_ready_bits | ICH_GSCI));
568                 }
569         }
570 }
571 
572 /*
573  * access to AC97 for Ali5455
574  */
575 static int snd_intel8x0_ali_codec_ready(struct intel8x0 *chip, int mask)
576 {
577         int count = 0;
578         for (count = 0; count < 0x7f; count++) {
579                 int val = igetbyte(chip, ICHREG(ALI_CSPSR));
580                 if (val & mask)
581                         return 0;
582         }
583         if (! chip->in_ac97_init)
584                 dev_warn(chip->card->dev, "AC97 codec ready timeout.\n");
585         return -EBUSY;
586 }
587 
588 static int snd_intel8x0_ali_codec_semaphore(struct intel8x0 *chip)
589 {
590         int time = 100;
591         if (chip->buggy_semaphore)
592                 return 0; /* just ignore ... */
593         while (--time && (igetdword(chip, ICHREG(ALI_CAS)) & ALI_CAS_SEM_BUSY))
594                 udelay(1);
595         if (! time && ! chip->in_ac97_init)
596                 dev_warn(chip->card->dev, "ali_codec_semaphore timeout\n");
597         return snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_CODEC_READY);
598 }
599 
600 static unsigned short snd_intel8x0_ali_codec_read(struct snd_ac97 *ac97, unsigned short reg)
601 {
602         struct intel8x0 *chip = ac97->private_data;
603         unsigned short data = 0xffff;
604 
605         if (snd_intel8x0_ali_codec_semaphore(chip))
606                 goto __err;
607         reg |= ALI_CPR_ADDR_READ;
608         if (ac97->num)
609                 reg |= ALI_CPR_ADDR_SECONDARY;
610         iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
611         if (snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_READ_OK))
612                 goto __err;
613         data = igetword(chip, ICHREG(ALI_SPR));
614  __err:
615         return data;
616 }
617 
618 static void snd_intel8x0_ali_codec_write(struct snd_ac97 *ac97, unsigned short reg,
619                                          unsigned short val)
620 {
621         struct intel8x0 *chip = ac97->private_data;
622 
623         if (snd_intel8x0_ali_codec_semaphore(chip))
624                 return;
625         iputword(chip, ICHREG(ALI_CPR), val);
626         if (ac97->num)
627                 reg |= ALI_CPR_ADDR_SECONDARY;
628         iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
629         snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_WRITE_OK);
630 }
631 
632 
633 /*
634  * DMA I/O
635  */
636 static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ichdev) 
637 {
638         int idx;
639         __le32 *bdbar = ichdev->bdbar;
640         unsigned long port = ichdev->reg_offset;
641 
642         iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
643         if (ichdev->size == ichdev->fragsize) {
644                 ichdev->ack_reload = ichdev->ack = 2;
645                 ichdev->fragsize1 = ichdev->fragsize >> 1;
646                 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
647                         bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
648                         bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
649                                                      ichdev->fragsize1 >> ichdev->pos_shift);
650                         bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
651                         bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
652                                                      ichdev->fragsize1 >> ichdev->pos_shift);
653                 }
654                 ichdev->frags = 2;
655         } else {
656                 ichdev->ack_reload = ichdev->ack = 1;
657                 ichdev->fragsize1 = ichdev->fragsize;
658                 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
659                         bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf +
660                                                      (((idx >> 1) * ichdev->fragsize) %
661                                                       ichdev->size));
662                         bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
663                                                      ichdev->fragsize >> ichdev->pos_shift);
664 #if 0
665                         dev_dbg(chip->card->dev, "bdbar[%i] = 0x%x [0x%x]\n",
666                                idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
667 #endif
668                 }
669                 ichdev->frags = ichdev->size / ichdev->fragsize;
670         }
671         iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
672         ichdev->civ = 0;
673         iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
674         ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
675         ichdev->position = 0;
676 #if 0
677         dev_dbg(chip->card->dev,
678                 "lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
679                ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
680                ichdev->fragsize1);
681 #endif
682         /* clear interrupts */
683         iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
684 }
685 
686 /*
687  *  Interrupt handler
688  */
689 
690 static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ichdev)
691 {
692         unsigned long port = ichdev->reg_offset;
693         unsigned long flags;
694         int status, civ, i, step;
695         int ack = 0;
696 
697         if (!(ichdev->prepared || chip->in_measurement) || ichdev->suspended)
698                 return;
699 
700         spin_lock_irqsave(&chip->reg_lock, flags);
701         status = igetbyte(chip, port + ichdev->roff_sr);
702         civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
703         if (!(status & ICH_BCIS)) {
704                 step = 0;
705         } else if (civ == ichdev->civ) {
706                 // snd_printd("civ same %d\n", civ);
707                 step = 1;
708                 ichdev->civ++;
709                 ichdev->civ &= ICH_REG_LVI_MASK;
710         } else {
711                 step = civ - ichdev->civ;
712                 if (step < 0)
713                         step += ICH_REG_LVI_MASK + 1;
714                 // if (step != 1)
715                 //      snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
716                 ichdev->civ = civ;
717         }
718 
719         ichdev->position += step * ichdev->fragsize1;
720         if (! chip->in_measurement)
721                 ichdev->position %= ichdev->size;
722         ichdev->lvi += step;
723         ichdev->lvi &= ICH_REG_LVI_MASK;
724         iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
725         for (i = 0; i < step; i++) {
726                 ichdev->lvi_frag++;
727                 ichdev->lvi_frag %= ichdev->frags;
728                 ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
729 #if 0
730         dev_dbg(chip->card->dev,
731                 "new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n",
732                ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
733                ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
734                inl(port + 4), inb(port + ICH_REG_OFF_CR));
735 #endif
736                 if (--ichdev->ack == 0) {
737                         ichdev->ack = ichdev->ack_reload;
738                         ack = 1;
739                 }
740         }
741         spin_unlock_irqrestore(&chip->reg_lock, flags);
742         if (ack && ichdev->substream) {
743                 snd_pcm_period_elapsed(ichdev->substream);
744         }
745         iputbyte(chip, port + ichdev->roff_sr,
746                  status & (ICH_FIFOE | ICH_BCIS | ICH_LVBCI));
747 }
748 
749 static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id)
750 {
751         struct intel8x0 *chip = dev_id;
752         struct ichdev *ichdev;
753         unsigned int status;
754         unsigned int i;
755 
756         status = igetdword(chip, chip->int_sta_reg);
757         if (status == 0xffffffff)       /* we are not yet resumed */
758                 return IRQ_NONE;
759 
760         if ((status & chip->int_sta_mask) == 0) {
761                 if (status) {
762                         /* ack */
763                         iputdword(chip, chip->int_sta_reg, status);
764                         if (! chip->buggy_irq)
765                                 status = 0;
766                 }
767                 return IRQ_RETVAL(status);
768         }
769 
770         for (i = 0; i < chip->bdbars_count; i++) {
771                 ichdev = &chip->ichd[i];
772                 if (status & ichdev->int_sta_mask)
773                         snd_intel8x0_update(chip, ichdev);
774         }
775 
776         /* ack them */
777         iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
778         
779         return IRQ_HANDLED;
780 }
781 
782 /*
783  *  PCM part
784  */
785 
786 static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
787 {
788         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
789         struct ichdev *ichdev = get_ichdev(substream);
790         unsigned char val = 0;
791         unsigned long port = ichdev->reg_offset;
792 
793         switch (cmd) {
794         case SNDRV_PCM_TRIGGER_RESUME:
795                 ichdev->suspended = 0;
796                 fallthrough;
797         case SNDRV_PCM_TRIGGER_START:
798         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
799                 val = ICH_IOCE | ICH_STARTBM;
800                 ichdev->last_pos = ichdev->position;
801                 break;
802         case SNDRV_PCM_TRIGGER_SUSPEND:
803                 ichdev->suspended = 1;
804                 fallthrough;
805         case SNDRV_PCM_TRIGGER_STOP:
806                 val = 0;
807                 break;
808         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
809                 val = ICH_IOCE;
810                 break;
811         default:
812                 return -EINVAL;
813         }
814         iputbyte(chip, port + ICH_REG_OFF_CR, val);
815         if (cmd == SNDRV_PCM_TRIGGER_STOP) {
816                 /* wait until DMA stopped */
817                 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
818                 /* reset whole DMA things */
819                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
820         }
821         return 0;
822 }
823 
824 static int snd_intel8x0_ali_trigger(struct snd_pcm_substream *substream, int cmd)
825 {
826         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
827         struct ichdev *ichdev = get_ichdev(substream);
828         unsigned long port = ichdev->reg_offset;
829         static const int fiforeg[] = {
830                 ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3)
831         };
832         unsigned int val, fifo;
833 
834         val = igetdword(chip, ICHREG(ALI_DMACR));
835         switch (cmd) {
836         case SNDRV_PCM_TRIGGER_RESUME:
837                 ichdev->suspended = 0;
838                 fallthrough;
839         case SNDRV_PCM_TRIGGER_START:
840         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
841                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
842                         /* clear FIFO for synchronization of channels */
843                         fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]);
844                         fifo &= ~(0xff << (ichdev->ali_slot % 4));  
845                         fifo |= 0x83 << (ichdev->ali_slot % 4); 
846                         iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo);
847                 }
848                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
849                 val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */
850                 /* start DMA */
851                 iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot));
852                 break;
853         case SNDRV_PCM_TRIGGER_SUSPEND:
854                 ichdev->suspended = 1;
855                 fallthrough;
856         case SNDRV_PCM_TRIGGER_STOP:
857         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
858                 /* pause */
859                 iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16)));
860                 iputbyte(chip, port + ICH_REG_OFF_CR, 0);
861                 while (igetbyte(chip, port + ICH_REG_OFF_CR))
862                         ;
863                 if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
864                         break;
865                 /* reset whole DMA things */
866                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
867                 /* clear interrupts */
868                 iputbyte(chip, port + ICH_REG_OFF_SR,
869                          igetbyte(chip, port + ICH_REG_OFF_SR) | 0x1e);
870                 iputdword(chip, ICHREG(ALI_INTERRUPTSR),
871                           igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask);
872                 break;
873         default:
874                 return -EINVAL;
875         }
876         return 0;
877 }
878 
879 static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream,
880                                   struct snd_pcm_hw_params *hw_params)
881 {
882         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
883         struct ichdev *ichdev = get_ichdev(substream);
884         int dbl = params_rate(hw_params) > 48000;
885         int err;
886 
887         if (ichdev->pcm_open_flag) {
888                 snd_ac97_pcm_close(ichdev->pcm);
889                 ichdev->pcm_open_flag = 0;
890                 ichdev->prepared = 0;
891         }
892         err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),
893                                 params_channels(hw_params),
894                                 ichdev->pcm->r[dbl].slots);
895         if (err >= 0) {
896                 ichdev->pcm_open_flag = 1;
897                 /* Force SPDIF setting */
898                 if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0)
899                         snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF,
900                                           params_rate(hw_params));
901         }
902         return err;
903 }
904 
905 static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream)
906 {
907         struct ichdev *ichdev = get_ichdev(substream);
908 
909         if (ichdev->pcm_open_flag) {
910                 snd_ac97_pcm_close(ichdev->pcm);
911                 ichdev->pcm_open_flag = 0;
912                 ichdev->prepared = 0;
913         }
914         return 0;
915 }
916 
917 static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip,
918                                        struct snd_pcm_runtime *runtime)
919 {
920         unsigned int cnt;
921         int dbl = runtime->rate > 48000;
922 
923         spin_lock_irq(&chip->reg_lock);
924         switch (chip->device_type) {
925         case DEVICE_ALI:
926                 cnt = igetdword(chip, ICHREG(ALI_SCR));
927                 cnt &= ~ICH_ALI_SC_PCM_246_MASK;
928                 if (runtime->channels == 4 || dbl)
929                         cnt |= ICH_ALI_SC_PCM_4;
930                 else if (runtime->channels == 6)
931                         cnt |= ICH_ALI_SC_PCM_6;
932                 iputdword(chip, ICHREG(ALI_SCR), cnt);
933                 break;
934         case DEVICE_SIS:
935                 cnt = igetdword(chip, ICHREG(GLOB_CNT));
936                 cnt &= ~ICH_SIS_PCM_246_MASK;
937                 if (runtime->channels == 4 || dbl)
938                         cnt |= ICH_SIS_PCM_4;
939                 else if (runtime->channels == 6)
940                         cnt |= ICH_SIS_PCM_6;
941                 iputdword(chip, ICHREG(GLOB_CNT), cnt);
942                 break;
943         default:
944                 cnt = igetdword(chip, ICHREG(GLOB_CNT));
945                 cnt &= ~(ICH_PCM_246_MASK | ICH_PCM_20BIT);
946                 if (runtime->channels == 4 || dbl)
947                         cnt |= ICH_PCM_4;
948                 else if (runtime->channels == 6)
949                         cnt |= ICH_PCM_6;
950                 else if (runtime->channels == 8)
951                         cnt |= ICH_PCM_8;
952                 if (chip->device_type == DEVICE_NFORCE) {
953                         /* reset to 2ch once to keep the 6 channel data in alignment,
954                          * to start from Front Left always
955                          */
956                         if (cnt & ICH_PCM_246_MASK) {
957                                 iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_PCM_246_MASK);
958                                 spin_unlock_irq(&chip->reg_lock);
959                                 msleep(50); /* grrr... */
960                                 spin_lock_irq(&chip->reg_lock);
961                         }
962                 } else if (chip->device_type == DEVICE_INTEL_ICH4) {
963                         if (runtime->sample_bits > 16)
964                                 cnt |= ICH_PCM_20BIT;
965                 }
966                 iputdword(chip, ICHREG(GLOB_CNT), cnt);
967                 break;
968         }
969         spin_unlock_irq(&chip->reg_lock);
970 }
971 
972 static int snd_intel8x0_pcm_prepare(struct snd_pcm_substream *substream)
973 {
974         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
975         struct snd_pcm_runtime *runtime = substream->runtime;
976         struct ichdev *ichdev = get_ichdev(substream);
977 
978         ichdev->physbuf = runtime->dma_addr;
979         ichdev->size = snd_pcm_lib_buffer_bytes(substream);
980         ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
981         if (ichdev->ichd == ICHD_PCMOUT) {
982                 snd_intel8x0_setup_pcm_out(chip, runtime);
983                 if (chip->device_type == DEVICE_INTEL_ICH4)
984                         ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
985         }
986         snd_intel8x0_setup_periods(chip, ichdev);
987         ichdev->prepared = 1;
988         return 0;
989 }
990 
991 static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *substream)
992 {
993         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
994         struct ichdev *ichdev = get_ichdev(substream);
995         size_t ptr1, ptr;
996         int civ, timeout = 10;
997         unsigned int position;
998 
999         spin_lock(&chip->reg_lock);
1000         do {
1001                 civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
1002                 ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
1003                 position = ichdev->position;
1004                 if (ptr1 == 0) {
1005                         udelay(10);
1006                         continue;
1007                 }
1008                 if (civ != igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV))
1009                         continue;
1010 
1011                 /* IO read operation is very expensive inside virtual machine
1012                  * as it is emulated. The probability that subsequent PICB read
1013                  * will return different result is high enough to loop till
1014                  * timeout here.
1015                  * Same CIV is strict enough condition to be sure that PICB
1016                  * is valid inside VM on emulated card. */
1017                 if (chip->inside_vm)
1018                         break;
1019                 if (ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
1020                         break;
1021         } while (timeout--);
1022         ptr = ichdev->last_pos;
1023         if (ptr1 != 0) {
1024                 ptr1 <<= ichdev->pos_shift;
1025                 ptr = ichdev->fragsize1 - ptr1;
1026                 ptr += position;
1027                 if (ptr < ichdev->last_pos) {
1028                         unsigned int pos_base, last_base;
1029                         pos_base = position / ichdev->fragsize1;
1030                         last_base = ichdev->last_pos / ichdev->fragsize1;
1031                         /* another sanity check; ptr1 can go back to full
1032                          * before the base position is updated
1033                          */
1034                         if (pos_base == last_base)
1035                                 ptr = ichdev->last_pos;
1036                 }
1037         }
1038         ichdev->last_pos = ptr;
1039         spin_unlock(&chip->reg_lock);
1040         if (ptr >= ichdev->size)
1041                 return 0;
1042         return bytes_to_frames(substream->runtime, ptr);
1043 }
1044 
1045 static const struct snd_pcm_hardware snd_intel8x0_stream =
1046 {
1047         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1048                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1049                                  SNDRV_PCM_INFO_MMAP_VALID |
1050                                  SNDRV_PCM_INFO_PAUSE |
1051                                  SNDRV_PCM_INFO_RESUME),
1052         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1053         .rates =                SNDRV_PCM_RATE_48000,
1054         .rate_min =             48000,
1055         .rate_max =             48000,
1056         .channels_min =         2,
1057         .channels_max =         2,
1058         .buffer_bytes_max =     128 * 1024,
1059         .period_bytes_min =     32,
1060         .period_bytes_max =     128 * 1024,
1061         .periods_min =          1,
1062         .periods_max =          1024,
1063         .fifo_size =            0,
1064 };
1065 
1066 static const unsigned int channels4[] = {
1067         2, 4,
1068 };
1069 
1070 static const struct snd_pcm_hw_constraint_list hw_constraints_channels4 = {
1071         .count = ARRAY_SIZE(channels4),
1072         .list = channels4,
1073         .mask = 0,
1074 };
1075 
1076 static const unsigned int channels6[] = {
1077         2, 4, 6,
1078 };
1079 
1080 static const struct snd_pcm_hw_constraint_list hw_constraints_channels6 = {
1081         .count = ARRAY_SIZE(channels6),
1082         .list = channels6,
1083         .mask = 0,
1084 };
1085 
1086 static const unsigned int channels8[] = {
1087         2, 4, 6, 8,
1088 };
1089 
1090 static const struct snd_pcm_hw_constraint_list hw_constraints_channels8 = {
1091         .count = ARRAY_SIZE(channels8),
1092         .list = channels8,
1093         .mask = 0,
1094 };
1095 
1096 static int snd_intel8x0_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
1097 {
1098         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1099         struct snd_pcm_runtime *runtime = substream->runtime;
1100         int err;
1101 
1102         ichdev->substream = substream;
1103         runtime->hw = snd_intel8x0_stream;
1104         runtime->hw.rates = ichdev->pcm->rates;
1105         snd_pcm_limit_hw_rates(runtime);
1106         if (chip->device_type == DEVICE_SIS) {
1107                 runtime->hw.buffer_bytes_max = 64*1024;
1108                 runtime->hw.period_bytes_max = 64*1024;
1109         }
1110         err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1111         if (err < 0)
1112                 return err;
1113         runtime->private_data = ichdev;
1114         return 0;
1115 }
1116 
1117 static int snd_intel8x0_playback_open(struct snd_pcm_substream *substream)
1118 {
1119         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1120         struct snd_pcm_runtime *runtime = substream->runtime;
1121         int err;
1122 
1123         err = snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMOUT]);
1124         if (err < 0)
1125                 return err;
1126 
1127         if (chip->multi8) {
1128                 runtime->hw.channels_max = 8;
1129                 snd_pcm_hw_constraint_list(runtime, 0,
1130                                                 SNDRV_PCM_HW_PARAM_CHANNELS,
1131                                                 &hw_constraints_channels8);
1132         } else if (chip->multi6) {
1133                 runtime->hw.channels_max = 6;
1134                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1135                                            &hw_constraints_channels6);
1136         } else if (chip->multi4) {
1137                 runtime->hw.channels_max = 4;
1138                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1139                                            &hw_constraints_channels4);
1140         }
1141         if (chip->dra) {
1142                 snd_ac97_pcm_double_rate_rules(runtime);
1143         }
1144         if (chip->smp20bit) {
1145                 runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1146                 snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
1147         }
1148         return 0;
1149 }
1150 
1151 static int snd_intel8x0_playback_close(struct snd_pcm_substream *substream)
1152 {
1153         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1154 
1155         chip->ichd[ICHD_PCMOUT].substream = NULL;
1156         return 0;
1157 }
1158 
1159 static int snd_intel8x0_capture_open(struct snd_pcm_substream *substream)
1160 {
1161         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1162 
1163         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMIN]);
1164 }
1165 
1166 static int snd_intel8x0_capture_close(struct snd_pcm_substream *substream)
1167 {
1168         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1169 
1170         chip->ichd[ICHD_PCMIN].substream = NULL;
1171         return 0;
1172 }
1173 
1174 static int snd_intel8x0_mic_open(struct snd_pcm_substream *substream)
1175 {
1176         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1177 
1178         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC]);
1179 }
1180 
1181 static int snd_intel8x0_mic_close(struct snd_pcm_substream *substream)
1182 {
1183         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1184 
1185         chip->ichd[ICHD_MIC].substream = NULL;
1186         return 0;
1187 }
1188 
1189 static int snd_intel8x0_mic2_open(struct snd_pcm_substream *substream)
1190 {
1191         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1192 
1193         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC2]);
1194 }
1195 
1196 static int snd_intel8x0_mic2_close(struct snd_pcm_substream *substream)
1197 {
1198         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1199 
1200         chip->ichd[ICHD_MIC2].substream = NULL;
1201         return 0;
1202 }
1203 
1204 static int snd_intel8x0_capture2_open(struct snd_pcm_substream *substream)
1205 {
1206         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1207 
1208         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCM2IN]);
1209 }
1210 
1211 static int snd_intel8x0_capture2_close(struct snd_pcm_substream *substream)
1212 {
1213         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1214 
1215         chip->ichd[ICHD_PCM2IN].substream = NULL;
1216         return 0;
1217 }
1218 
1219 static int snd_intel8x0_spdif_open(struct snd_pcm_substream *substream)
1220 {
1221         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1222         int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1223 
1224         return snd_intel8x0_pcm_open(substream, &chip->ichd[idx]);
1225 }
1226 
1227 static int snd_intel8x0_spdif_close(struct snd_pcm_substream *substream)
1228 {
1229         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1230         int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1231 
1232         chip->ichd[idx].substream = NULL;
1233         return 0;
1234 }
1235 
1236 static int snd_intel8x0_ali_ac97spdifout_open(struct snd_pcm_substream *substream)
1237 {
1238         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1239         unsigned int val;
1240 
1241         spin_lock_irq(&chip->reg_lock);
1242         val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1243         val |= ICH_ALI_IF_AC97SP;
1244         iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1245         /* also needs to set ALI_SC_CODEC_SPDF correctly */
1246         spin_unlock_irq(&chip->reg_lock);
1247 
1248         return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]);
1249 }
1250 
1251 static int snd_intel8x0_ali_ac97spdifout_close(struct snd_pcm_substream *substream)
1252 {
1253         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1254         unsigned int val;
1255 
1256         chip->ichd[ALID_AC97SPDIFOUT].substream = NULL;
1257         spin_lock_irq(&chip->reg_lock);
1258         val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1259         val &= ~ICH_ALI_IF_AC97SP;
1260         iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1261         spin_unlock_irq(&chip->reg_lock);
1262 
1263         return 0;
1264 }
1265 
1266 #if 0 // NYI
1267 static int snd_intel8x0_ali_spdifin_open(struct snd_pcm_substream *substream)
1268 {
1269         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1270 
1271         return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFIN]);
1272 }
1273 
1274 static int snd_intel8x0_ali_spdifin_close(struct snd_pcm_substream *substream)
1275 {
1276         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1277 
1278         chip->ichd[ALID_SPDIFIN].substream = NULL;
1279         return 0;
1280 }
1281 
1282 static int snd_intel8x0_ali_spdifout_open(struct snd_pcm_substream *substream)
1283 {
1284         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1285 
1286         return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFOUT]);
1287 }
1288 
1289 static int snd_intel8x0_ali_spdifout_close(struct snd_pcm_substream *substream)
1290 {
1291         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1292 
1293         chip->ichd[ALID_SPDIFOUT].substream = NULL;
1294         return 0;
1295 }
1296 #endif
1297 
1298 static const struct snd_pcm_ops snd_intel8x0_playback_ops = {
1299         .open =         snd_intel8x0_playback_open,
1300         .close =        snd_intel8x0_playback_close,
1301         .hw_params =    snd_intel8x0_hw_params,
1302         .hw_free =      snd_intel8x0_hw_free,
1303         .prepare =      snd_intel8x0_pcm_prepare,
1304         .trigger =      snd_intel8x0_pcm_trigger,
1305         .pointer =      snd_intel8x0_pcm_pointer,
1306 };
1307 
1308 static const struct snd_pcm_ops snd_intel8x0_capture_ops = {
1309         .open =         snd_intel8x0_capture_open,
1310         .close =        snd_intel8x0_capture_close,
1311         .hw_params =    snd_intel8x0_hw_params,
1312         .hw_free =      snd_intel8x0_hw_free,
1313         .prepare =      snd_intel8x0_pcm_prepare,
1314         .trigger =      snd_intel8x0_pcm_trigger,
1315         .pointer =      snd_intel8x0_pcm_pointer,
1316 };
1317 
1318 static const struct snd_pcm_ops snd_intel8x0_capture_mic_ops = {
1319         .open =         snd_intel8x0_mic_open,
1320         .close =        snd_intel8x0_mic_close,
1321         .hw_params =    snd_intel8x0_hw_params,
1322         .hw_free =      snd_intel8x0_hw_free,
1323         .prepare =      snd_intel8x0_pcm_prepare,
1324         .trigger =      snd_intel8x0_pcm_trigger,
1325         .pointer =      snd_intel8x0_pcm_pointer,
1326 };
1327 
1328 static const struct snd_pcm_ops snd_intel8x0_capture_mic2_ops = {
1329         .open =         snd_intel8x0_mic2_open,
1330         .close =        snd_intel8x0_mic2_close,
1331         .hw_params =    snd_intel8x0_hw_params,
1332         .hw_free =      snd_intel8x0_hw_free,
1333         .prepare =      snd_intel8x0_pcm_prepare,
1334         .trigger =      snd_intel8x0_pcm_trigger,
1335         .pointer =      snd_intel8x0_pcm_pointer,
1336 };
1337 
1338 static const struct snd_pcm_ops snd_intel8x0_capture2_ops = {
1339         .open =         snd_intel8x0_capture2_open,
1340         .close =        snd_intel8x0_capture2_close,
1341         .hw_params =    snd_intel8x0_hw_params,
1342         .hw_free =      snd_intel8x0_hw_free,
1343         .prepare =      snd_intel8x0_pcm_prepare,
1344         .trigger =      snd_intel8x0_pcm_trigger,
1345         .pointer =      snd_intel8x0_pcm_pointer,
1346 };
1347 
1348 static const struct snd_pcm_ops snd_intel8x0_spdif_ops = {
1349         .open =         snd_intel8x0_spdif_open,
1350         .close =        snd_intel8x0_spdif_close,
1351         .hw_params =    snd_intel8x0_hw_params,
1352         .hw_free =      snd_intel8x0_hw_free,
1353         .prepare =      snd_intel8x0_pcm_prepare,
1354         .trigger =      snd_intel8x0_pcm_trigger,
1355         .pointer =      snd_intel8x0_pcm_pointer,
1356 };
1357 
1358 static const struct snd_pcm_ops snd_intel8x0_ali_playback_ops = {
1359         .open =         snd_intel8x0_playback_open,
1360         .close =        snd_intel8x0_playback_close,
1361         .hw_params =    snd_intel8x0_hw_params,
1362         .hw_free =      snd_intel8x0_hw_free,
1363         .prepare =      snd_intel8x0_pcm_prepare,
1364         .trigger =      snd_intel8x0_ali_trigger,
1365         .pointer =      snd_intel8x0_pcm_pointer,
1366 };
1367 
1368 static const struct snd_pcm_ops snd_intel8x0_ali_capture_ops = {
1369         .open =         snd_intel8x0_capture_open,
1370         .close =        snd_intel8x0_capture_close,
1371         .hw_params =    snd_intel8x0_hw_params,
1372         .hw_free =      snd_intel8x0_hw_free,
1373         .prepare =      snd_intel8x0_pcm_prepare,
1374         .trigger =      snd_intel8x0_ali_trigger,
1375         .pointer =      snd_intel8x0_pcm_pointer,
1376 };
1377 
1378 static const struct snd_pcm_ops snd_intel8x0_ali_capture_mic_ops = {
1379         .open =         snd_intel8x0_mic_open,
1380         .close =        snd_intel8x0_mic_close,
1381         .hw_params =    snd_intel8x0_hw_params,
1382         .hw_free =      snd_intel8x0_hw_free,
1383         .prepare =      snd_intel8x0_pcm_prepare,
1384         .trigger =      snd_intel8x0_ali_trigger,
1385         .pointer =      snd_intel8x0_pcm_pointer,
1386 };
1387 
1388 static const struct snd_pcm_ops snd_intel8x0_ali_ac97spdifout_ops = {
1389         .open =         snd_intel8x0_ali_ac97spdifout_open,
1390         .close =        snd_intel8x0_ali_ac97spdifout_close,
1391         .hw_params =    snd_intel8x0_hw_params,
1392         .hw_free =      snd_intel8x0_hw_free,
1393         .prepare =      snd_intel8x0_pcm_prepare,
1394         .trigger =      snd_intel8x0_ali_trigger,
1395         .pointer =      snd_intel8x0_pcm_pointer,
1396 };
1397 
1398 #if 0 // NYI
1399 static struct snd_pcm_ops snd_intel8x0_ali_spdifin_ops = {
1400         .open =         snd_intel8x0_ali_spdifin_open,
1401         .close =        snd_intel8x0_ali_spdifin_close,
1402         .hw_params =    snd_intel8x0_hw_params,
1403         .hw_free =      snd_intel8x0_hw_free,
1404         .prepare =      snd_intel8x0_pcm_prepare,
1405         .trigger =      snd_intel8x0_pcm_trigger,
1406         .pointer =      snd_intel8x0_pcm_pointer,
1407 };
1408 
1409 static struct snd_pcm_ops snd_intel8x0_ali_spdifout_ops = {
1410         .open =         snd_intel8x0_ali_spdifout_open,
1411         .close =        snd_intel8x0_ali_spdifout_close,
1412         .hw_params =    snd_intel8x0_hw_params,
1413         .hw_free =      snd_intel8x0_hw_free,
1414         .prepare =      snd_intel8x0_pcm_prepare,
1415         .trigger =      snd_intel8x0_pcm_trigger,
1416         .pointer =      snd_intel8x0_pcm_pointer,
1417 };
1418 #endif // NYI
1419 
1420 struct ich_pcm_table {
1421         char *suffix;
1422         const struct snd_pcm_ops *playback_ops;
1423         const struct snd_pcm_ops *capture_ops;
1424         size_t prealloc_size;
1425         size_t prealloc_max_size;
1426         int ac97_idx;
1427 };
1428 
1429 #define intel8x0_dma_type(chip) \
1430         ((chip)->fix_nocache ? SNDRV_DMA_TYPE_DEV_UC : SNDRV_DMA_TYPE_DEV)
1431 
1432 static int snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
1433                              const struct ich_pcm_table *rec)
1434 {
1435         struct snd_pcm *pcm;
1436         int err;
1437         char name[32];
1438 
1439         if (rec->suffix)
1440                 sprintf(name, "Intel ICH - %s", rec->suffix);
1441         else
1442                 strcpy(name, "Intel ICH");
1443         err = snd_pcm_new(chip->card, name, device,
1444                           rec->playback_ops ? 1 : 0,
1445                           rec->capture_ops ? 1 : 0, &pcm);
1446         if (err < 0)
1447                 return err;
1448 
1449         if (rec->playback_ops)
1450                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
1451         if (rec->capture_ops)
1452                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
1453 
1454         pcm->private_data = chip;
1455         pcm->info_flags = 0;
1456         if (rec->suffix)
1457                 sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
1458         else
1459                 strcpy(pcm->name, chip->card->shortname);
1460         chip->pcm[device] = pcm;
1461 
1462         snd_pcm_set_managed_buffer_all(pcm, intel8x0_dma_type(chip),
1463                                        &chip->pci->dev,
1464                                        rec->prealloc_size, rec->prealloc_max_size);
1465 
1466         if (rec->playback_ops &&
1467             rec->playback_ops->open == snd_intel8x0_playback_open) {
1468                 struct snd_pcm_chmap *chmap;
1469                 int chs = 2;
1470                 if (chip->multi8)
1471                         chs = 8;
1472                 else if (chip->multi6)
1473                         chs = 6;
1474                 else if (chip->multi4)
1475                         chs = 4;
1476                 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1477                                              snd_pcm_alt_chmaps, chs, 0,
1478                                              &chmap);
1479                 if (err < 0)
1480                         return err;
1481                 chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
1482                 chip->ac97[0]->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1483         }
1484 
1485         return 0;
1486 }
1487 
1488 static const struct ich_pcm_table intel_pcms[] = {
1489         {
1490                 .playback_ops = &snd_intel8x0_playback_ops,
1491                 .capture_ops = &snd_intel8x0_capture_ops,
1492                 .prealloc_size = 64 * 1024,
1493                 .prealloc_max_size = 128 * 1024,
1494         },
1495         {
1496                 .suffix = "MIC ADC",
1497                 .capture_ops = &snd_intel8x0_capture_mic_ops,
1498                 .prealloc_size = 0,
1499                 .prealloc_max_size = 128 * 1024,
1500                 .ac97_idx = ICHD_MIC,
1501         },
1502         {
1503                 .suffix = "MIC2 ADC",
1504                 .capture_ops = &snd_intel8x0_capture_mic2_ops,
1505                 .prealloc_size = 0,
1506                 .prealloc_max_size = 128 * 1024,
1507                 .ac97_idx = ICHD_MIC2,
1508         },
1509         {
1510                 .suffix = "ADC2",
1511                 .capture_ops = &snd_intel8x0_capture2_ops,
1512                 .prealloc_size = 0,
1513                 .prealloc_max_size = 128 * 1024,
1514                 .ac97_idx = ICHD_PCM2IN,
1515         },
1516         {
1517                 .suffix = "IEC958",
1518                 .playback_ops = &snd_intel8x0_spdif_ops,
1519                 .prealloc_size = 64 * 1024,
1520                 .prealloc_max_size = 128 * 1024,
1521                 .ac97_idx = ICHD_SPBAR,
1522         },
1523 };
1524 
1525 static const struct ich_pcm_table nforce_pcms[] = {
1526         {
1527                 .playback_ops = &snd_intel8x0_playback_ops,
1528                 .capture_ops = &snd_intel8x0_capture_ops,
1529                 .prealloc_size = 64 * 1024,
1530                 .prealloc_max_size = 128 * 1024,
1531         },
1532         {
1533                 .suffix = "MIC ADC",
1534                 .capture_ops = &snd_intel8x0_capture_mic_ops,
1535                 .prealloc_size = 0,
1536                 .prealloc_max_size = 128 * 1024,
1537                 .ac97_idx = NVD_MIC,
1538         },
1539         {
1540                 .suffix = "IEC958",
1541                 .playback_ops = &snd_intel8x0_spdif_ops,
1542                 .prealloc_size = 64 * 1024,
1543                 .prealloc_max_size = 128 * 1024,
1544                 .ac97_idx = NVD_SPBAR,
1545         },
1546 };
1547 
1548 static const struct ich_pcm_table ali_pcms[] = {
1549         {
1550                 .playback_ops = &snd_intel8x0_ali_playback_ops,
1551                 .capture_ops = &snd_intel8x0_ali_capture_ops,
1552                 .prealloc_size = 64 * 1024,
1553                 .prealloc_max_size = 128 * 1024,
1554         },
1555         {
1556                 .suffix = "MIC ADC",
1557                 .capture_ops = &snd_intel8x0_ali_capture_mic_ops,
1558                 .prealloc_size = 0,
1559                 .prealloc_max_size = 128 * 1024,
1560                 .ac97_idx = ALID_MIC,
1561         },
1562         {
1563                 .suffix = "IEC958",
1564                 .playback_ops = &snd_intel8x0_ali_ac97spdifout_ops,
1565                 /* .capture_ops = &snd_intel8x0_ali_spdifin_ops, */
1566                 .prealloc_size = 64 * 1024,
1567                 .prealloc_max_size = 128 * 1024,
1568                 .ac97_idx = ALID_AC97SPDIFOUT,
1569         },
1570 #if 0 // NYI
1571         {
1572                 .suffix = "HW IEC958",
1573                 .playback_ops = &snd_intel8x0_ali_spdifout_ops,
1574                 .prealloc_size = 64 * 1024,
1575                 .prealloc_max_size = 128 * 1024,
1576         },
1577 #endif
1578 };
1579 
1580 static int snd_intel8x0_pcm(struct intel8x0 *chip)
1581 {
1582         int i, tblsize, device, err;
1583         const struct ich_pcm_table *tbl, *rec;
1584 
1585         switch (chip->device_type) {
1586         case DEVICE_INTEL_ICH4:
1587                 tbl = intel_pcms;
1588                 tblsize = ARRAY_SIZE(intel_pcms);
1589                 if (spdif_aclink)
1590                         tblsize--;
1591                 break;
1592         case DEVICE_NFORCE:
1593                 tbl = nforce_pcms;
1594                 tblsize = ARRAY_SIZE(nforce_pcms);
1595                 if (spdif_aclink)
1596                         tblsize--;
1597                 break;
1598         case DEVICE_ALI:
1599                 tbl = ali_pcms;
1600                 tblsize = ARRAY_SIZE(ali_pcms);
1601                 break;
1602         default:
1603                 tbl = intel_pcms;
1604                 tblsize = 2;
1605                 break;
1606         }
1607 
1608         device = 0;
1609         for (i = 0; i < tblsize; i++) {
1610                 rec = tbl + i;
1611                 if (i > 0 && rec->ac97_idx) {
1612                         /* activate PCM only when associated AC'97 codec */
1613                         if (! chip->ichd[rec->ac97_idx].pcm)
1614                                 continue;
1615                 }
1616                 err = snd_intel8x0_pcm1(chip, device, rec);
1617                 if (err < 0)
1618                         return err;
1619                 device++;
1620         }
1621 
1622         chip->pcm_devs = device;
1623         return 0;
1624 }
1625         
1626 
1627 /*
1628  *  Mixer part
1629  */
1630 
1631 static void snd_intel8x0_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1632 {
1633         struct intel8x0 *chip = bus->private_data;
1634         chip->ac97_bus = NULL;
1635 }
1636 
1637 static void snd_intel8x0_mixer_free_ac97(struct snd_ac97 *ac97)
1638 {
1639         struct intel8x0 *chip = ac97->private_data;
1640         chip->ac97[ac97->num] = NULL;
1641 }
1642 
1643 static const struct ac97_pcm ac97_pcm_defs[] = {
1644         /* front PCM */
1645         {
1646                 .exclusive = 1,
1647                 .r = {  {
1648                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1649                                          (1 << AC97_SLOT_PCM_RIGHT) |
1650                                          (1 << AC97_SLOT_PCM_CENTER) |
1651                                          (1 << AC97_SLOT_PCM_SLEFT) |
1652                                          (1 << AC97_SLOT_PCM_SRIGHT) |
1653                                          (1 << AC97_SLOT_LFE)
1654                         },
1655                         {
1656                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1657                                          (1 << AC97_SLOT_PCM_RIGHT) |
1658                                          (1 << AC97_SLOT_PCM_LEFT_0) |
1659                                          (1 << AC97_SLOT_PCM_RIGHT_0)
1660                         }
1661                 }
1662         },
1663         /* PCM IN #1 */
1664         {
1665                 .stream = 1,
1666                 .exclusive = 1,
1667                 .r = {  {
1668                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1669                                          (1 << AC97_SLOT_PCM_RIGHT)
1670                         }
1671                 }
1672         },
1673         /* MIC IN #1 */
1674         {
1675                 .stream = 1,
1676                 .exclusive = 1,
1677                 .r = {  {
1678                                 .slots = (1 << AC97_SLOT_MIC)
1679                         }
1680                 }
1681         },
1682         /* S/PDIF PCM */
1683         {
1684                 .exclusive = 1,
1685                 .spdif = 1,
1686                 .r = {  {
1687                                 .slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1688                                          (1 << AC97_SLOT_SPDIF_RIGHT2)
1689                         }
1690                 }
1691         },
1692         /* PCM IN #2 */
1693         {
1694                 .stream = 1,
1695                 .exclusive = 1,
1696                 .r = {  {
1697                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1698                                          (1 << AC97_SLOT_PCM_RIGHT)
1699                         }
1700                 }
1701         },
1702         /* MIC IN #2 */
1703         {
1704                 .stream = 1,
1705                 .exclusive = 1,
1706                 .r = {  {
1707                                 .slots = (1 << AC97_SLOT_MIC)
1708                         }
1709                 }
1710         },
1711 };
1712 
1713 static const struct ac97_quirk ac97_quirks[] = {
1714         {
1715                 .subvendor = 0x0e11,
1716                 .subdevice = 0x000e,
1717                 .name = "Compaq Deskpro EN",    /* AD1885 */
1718                 .type = AC97_TUNE_HP_ONLY
1719         },
1720         {
1721                 .subvendor = 0x0e11,
1722                 .subdevice = 0x008a,
1723                 .name = "Compaq Evo W4000",     /* AD1885 */
1724                 .type = AC97_TUNE_HP_ONLY
1725         },
1726         {
1727                 .subvendor = 0x0e11,
1728                 .subdevice = 0x00b8,
1729                 .name = "Compaq Evo D510C",
1730                 .type = AC97_TUNE_HP_ONLY
1731         },
1732         {
1733                 .subvendor = 0x0e11,
1734                 .subdevice = 0x0860,
1735                 .name = "HP/Compaq nx7010",
1736                 .type = AC97_TUNE_MUTE_LED
1737         },
1738         {
1739                 .subvendor = 0x1014,
1740                 .subdevice = 0x0534,
1741                 .name = "ThinkPad X31",
1742                 .type = AC97_TUNE_INV_EAPD
1743         },
1744         {
1745                 .subvendor = 0x1014,
1746                 .subdevice = 0x1f00,
1747                 .name = "MS-9128",
1748                 .type = AC97_TUNE_ALC_JACK
1749         },
1750         {
1751                 .subvendor = 0x1014,
1752                 .subdevice = 0x0267,
1753                 .name = "IBM NetVista A30p",    /* AD1981B */
1754                 .type = AC97_TUNE_HP_ONLY
1755         },
1756         {
1757                 .subvendor = 0x1025,
1758                 .subdevice = 0x0082,
1759                 .name = "Acer Travelmate 2310",
1760                 .type = AC97_TUNE_HP_ONLY
1761         },
1762         {
1763                 .subvendor = 0x1025,
1764                 .subdevice = 0x0083,
1765                 .name = "Acer Aspire 3003LCi",
1766                 .type = AC97_TUNE_HP_ONLY
1767         },
1768         {
1769                 .subvendor = 0x1028,
1770                 .subdevice = 0x00d8,
1771                 .name = "Dell Precision 530",   /* AD1885 */
1772                 .type = AC97_TUNE_HP_ONLY
1773         },
1774         {
1775                 .subvendor = 0x1028,
1776                 .subdevice = 0x010d,
1777                 .name = "Dell", /* which model?  AD1885 */
1778                 .type = AC97_TUNE_HP_ONLY
1779         },
1780         {
1781                 .subvendor = 0x1028,
1782                 .subdevice = 0x0126,
1783                 .name = "Dell Optiplex GX260",  /* AD1981A */
1784                 .type = AC97_TUNE_HP_ONLY
1785         },
1786         {
1787                 .subvendor = 0x1028,
1788                 .subdevice = 0x012c,
1789                 .name = "Dell Precision 650",   /* AD1981A */
1790                 .type = AC97_TUNE_HP_ONLY
1791         },
1792         {
1793                 .subvendor = 0x1028,
1794                 .subdevice = 0x012d,
1795                 .name = "Dell Precision 450",   /* AD1981B*/
1796                 .type = AC97_TUNE_HP_ONLY
1797         },
1798         {
1799                 .subvendor = 0x1028,
1800                 .subdevice = 0x0147,
1801                 .name = "Dell", /* which model?  AD1981B*/
1802                 .type = AC97_TUNE_HP_ONLY
1803         },
1804         {
1805                 .subvendor = 0x1028,
1806                 .subdevice = 0x0151,
1807                 .name = "Dell Optiplex GX270",  /* AD1981B */
1808                 .type = AC97_TUNE_HP_ONLY
1809         },
1810         {
1811                 .subvendor = 0x1028,
1812                 .subdevice = 0x014e,
1813                 .name = "Dell D800", /* STAC9750/51 */
1814                 .type = AC97_TUNE_HP_ONLY
1815         },
1816         {
1817                 .subvendor = 0x1028,
1818                 .subdevice = 0x0163,
1819                 .name = "Dell Unknown", /* STAC9750/51 */
1820                 .type = AC97_TUNE_HP_ONLY
1821         },
1822         {
1823                 .subvendor = 0x1028,
1824                 .subdevice = 0x016a,
1825                 .name = "Dell Inspiron 8600",   /* STAC9750/51 */
1826                 .type = AC97_TUNE_HP_ONLY
1827         },
1828         {
1829                 .subvendor = 0x1028,
1830                 .subdevice = 0x0182,
1831                 .name = "Dell Latitude D610",   /* STAC9750/51 */
1832                 .type = AC97_TUNE_HP_ONLY
1833         },
1834         {
1835                 .subvendor = 0x1028,
1836                 .subdevice = 0x0186,
1837                 .name = "Dell Latitude D810", /* cf. Malone #41015 */
1838                 .type = AC97_TUNE_HP_MUTE_LED
1839         },
1840         {
1841                 .subvendor = 0x1028,
1842                 .subdevice = 0x0188,
1843                 .name = "Dell Inspiron 6000",
1844                 .type = AC97_TUNE_HP_MUTE_LED /* cf. Malone #41015 */
1845         },
1846         {
1847                 .subvendor = 0x1028,
1848                 .subdevice = 0x0189,
1849                 .name = "Dell Inspiron 9300",
1850                 .type = AC97_TUNE_HP_MUTE_LED
1851         },
1852         {
1853                 .subvendor = 0x1028,
1854                 .subdevice = 0x0191,
1855                 .name = "Dell Inspiron 8600",
1856                 .type = AC97_TUNE_HP_ONLY
1857         },
1858         {
1859                 .subvendor = 0x103c,
1860                 .subdevice = 0x006d,
1861                 .name = "HP zv5000",
1862                 .type = AC97_TUNE_MUTE_LED      /*AD1981B*/
1863         },
1864         {       /* FIXME: which codec? */
1865                 .subvendor = 0x103c,
1866                 .subdevice = 0x00c3,
1867                 .name = "HP xw6000",
1868                 .type = AC97_TUNE_HP_ONLY
1869         },
1870         {
1871                 .subvendor = 0x103c,
1872                 .subdevice = 0x088c,
1873                 .name = "HP nc8000",
1874                 .type = AC97_TUNE_HP_MUTE_LED
1875         },
1876         {
1877                 .subvendor = 0x103c,
1878                 .subdevice = 0x0890,
1879                 .name = "HP nc6000",
1880                 .type = AC97_TUNE_MUTE_LED
1881         },
1882         {
1883                 .subvendor = 0x103c,
1884                 .subdevice = 0x129d,
1885                 .name = "HP xw8000",
1886                 .type = AC97_TUNE_HP_ONLY
1887         },
1888         {
1889                 .subvendor = 0x103c,
1890                 .subdevice = 0x0938,
1891                 .name = "HP nc4200",
1892                 .type = AC97_TUNE_HP_MUTE_LED
1893         },
1894         {
1895                 .subvendor = 0x103c,
1896                 .subdevice = 0x099c,
1897                 .name = "HP nx6110/nc6120",
1898                 .type = AC97_TUNE_HP_MUTE_LED
1899         },
1900         {
1901                 .subvendor = 0x103c,
1902                 .subdevice = 0x0944,
1903                 .name = "HP nc6220",
1904                 .type = AC97_TUNE_HP_MUTE_LED
1905         },
1906         {
1907                 .subvendor = 0x103c,
1908                 .subdevice = 0x0934,
1909                 .name = "HP nc8220",
1910                 .type = AC97_TUNE_HP_MUTE_LED
1911         },
1912         {
1913                 .subvendor = 0x103c,
1914                 .subdevice = 0x12f1,
1915                 .name = "HP xw8200",    /* AD1981B*/
1916                 .type = AC97_TUNE_HP_ONLY
1917         },
1918         {
1919                 .subvendor = 0x103c,
1920                 .subdevice = 0x12f2,
1921                 .name = "HP xw6200",
1922                 .type = AC97_TUNE_HP_ONLY
1923         },
1924         {
1925                 .subvendor = 0x103c,
1926                 .subdevice = 0x3008,
1927                 .name = "HP xw4200",    /* AD1981B*/
1928                 .type = AC97_TUNE_HP_ONLY
1929         },
1930         {
1931                 .subvendor = 0x104d,
1932                 .subdevice = 0x8144,
1933                 .name = "Sony",
1934                 .type = AC97_TUNE_INV_EAPD
1935         },
1936         {
1937                 .subvendor = 0x104d,
1938                 .subdevice = 0x8197,
1939                 .name = "Sony S1XP",
1940                 .type = AC97_TUNE_INV_EAPD
1941         },
1942         {
1943                 .subvendor = 0x104d,
1944                 .subdevice = 0x81c0,
1945                 .name = "Sony VAIO VGN-T350P", /*AD1981B*/
1946                 .type = AC97_TUNE_INV_EAPD
1947         },
1948         {
1949                 .subvendor = 0x104d,
1950                 .subdevice = 0x81c5,
1951                 .name = "Sony VAIO VGN-B1VP", /*AD1981B*/
1952                 .type = AC97_TUNE_INV_EAPD
1953         },
1954         {
1955                 .subvendor = 0x1043,
1956                 .subdevice = 0x80f3,
1957                 .name = "ASUS ICH5/AD1985",
1958                 .type = AC97_TUNE_AD_SHARING
1959         },
1960         {
1961                 .subvendor = 0x10cf,
1962                 .subdevice = 0x11c3,
1963                 .name = "Fujitsu-Siemens E4010",
1964                 .type = AC97_TUNE_HP_ONLY
1965         },
1966         {
1967                 .subvendor = 0x10cf,
1968                 .subdevice = 0x1225,
1969                 .name = "Fujitsu-Siemens T3010",
1970                 .type = AC97_TUNE_HP_ONLY
1971         },
1972         {
1973                 .subvendor = 0x10cf,
1974                 .subdevice = 0x1253,
1975                 .name = "Fujitsu S6210",        /* STAC9750/51 */
1976                 .type = AC97_TUNE_HP_ONLY
1977         },
1978         {
1979                 .subvendor = 0x10cf,
1980                 .subdevice = 0x127d,
1981                 .name = "Fujitsu Lifebook P7010",
1982                 .type = AC97_TUNE_HP_ONLY
1983         },
1984         {
1985                 .subvendor = 0x10cf,
1986                 .subdevice = 0x127e,
1987                 .name = "Fujitsu Lifebook C1211D",
1988                 .type = AC97_TUNE_HP_ONLY
1989         },
1990         {
1991                 .subvendor = 0x10cf,
1992                 .subdevice = 0x12ec,
1993                 .name = "Fujitsu-Siemens 4010",
1994                 .type = AC97_TUNE_HP_ONLY
1995         },
1996         {
1997                 .subvendor = 0x10cf,
1998                 .subdevice = 0x12f2,
1999                 .name = "Fujitsu-Siemens Celsius H320",
2000                 .type = AC97_TUNE_SWAP_HP
2001         },
2002         {
2003                 .subvendor = 0x10f1,
2004                 .subdevice = 0x2665,
2005                 .name = "Fujitsu-Siemens Celsius",      /* AD1981? */
2006                 .type = AC97_TUNE_HP_ONLY
2007         },
2008         {
2009                 .subvendor = 0x10f1,
2010                 .subdevice = 0x2885,
2011                 .name = "AMD64 Mobo",   /* ALC650 */
2012                 .type = AC97_TUNE_HP_ONLY
2013         },
2014         {
2015                 .subvendor = 0x10f1,
2016                 .subdevice = 0x2895,
2017                 .name = "Tyan Thunder K8WE",
2018                 .type = AC97_TUNE_HP_ONLY
2019         },
2020         {
2021                 .subvendor = 0x10f7,
2022                 .subdevice = 0x834c,
2023                 .name = "Panasonic CF-R4",
2024                 .type = AC97_TUNE_HP_ONLY,
2025         },
2026         {
2027                 .subvendor = 0x110a,
2028                 .subdevice = 0x0056,
2029                 .name = "Fujitsu-Siemens Scenic",       /* AD1981? */
2030                 .type = AC97_TUNE_HP_ONLY
2031         },
2032         {
2033                 .subvendor = 0x11d4,
2034                 .subdevice = 0x5375,
2035                 .name = "ADI AD1985 (discrete)",
2036                 .type = AC97_TUNE_HP_ONLY
2037         },
2038         {
2039                 .subvendor = 0x1462,
2040                 .subdevice = 0x5470,
2041                 .name = "MSI P4 ATX 645 Ultra",
2042                 .type = AC97_TUNE_HP_ONLY
2043         },
2044         {
2045                 .subvendor = 0x161f,
2046                 .subdevice = 0x202f,
2047                 .name = "Gateway M520",
2048                 .type = AC97_TUNE_INV_EAPD
2049         },
2050         {
2051                 .subvendor = 0x161f,
2052                 .subdevice = 0x203a,
2053                 .name = "Gateway 4525GZ",               /* AD1981B */
2054                 .type = AC97_TUNE_INV_EAPD
2055         },
2056         {
2057                 .subvendor = 0x1734,
2058                 .subdevice = 0x0088,
2059                 .name = "Fujitsu-Siemens D1522",        /* AD1981 */
2060                 .type = AC97_TUNE_HP_ONLY
2061         },
2062         {
2063                 .subvendor = 0x8086,
2064                 .subdevice = 0x2000,
2065                 .mask = 0xfff0,
2066                 .name = "Intel ICH5/AD1985",
2067                 .type = AC97_TUNE_AD_SHARING
2068         },
2069         {
2070                 .subvendor = 0x8086,
2071                 .subdevice = 0x4000,
2072                 .mask = 0xfff0,
2073                 .name = "Intel ICH5/AD1985",
2074                 .type = AC97_TUNE_AD_SHARING
2075         },
2076         {
2077                 .subvendor = 0x8086,
2078                 .subdevice = 0x4856,
2079                 .name = "Intel D845WN (82801BA)",
2080                 .type = AC97_TUNE_SWAP_HP
2081         },
2082         {
2083                 .subvendor = 0x8086,
2084                 .subdevice = 0x4d44,
2085                 .name = "Intel D850EMV2",       /* AD1885 */
2086                 .type = AC97_TUNE_HP_ONLY
2087         },
2088         {
2089                 .subvendor = 0x8086,
2090                 .subdevice = 0x4d56,
2091                 .name = "Intel ICH/AD1885",
2092                 .type = AC97_TUNE_HP_ONLY
2093         },
2094         {
2095                 .subvendor = 0x8086,
2096                 .subdevice = 0x6000,
2097                 .mask = 0xfff0,
2098                 .name = "Intel ICH5/AD1985",
2099                 .type = AC97_TUNE_AD_SHARING
2100         },
2101         {
2102                 .subvendor = 0x8086,
2103                 .subdevice = 0xe000,
2104                 .mask = 0xfff0,
2105                 .name = "Intel ICH5/AD1985",
2106                 .type = AC97_TUNE_AD_SHARING
2107         },
2108 #if 0 /* FIXME: this seems wrong on most boards */
2109         {
2110                 .subvendor = 0x8086,
2111                 .subdevice = 0xa000,
2112                 .mask = 0xfff0,
2113                 .name = "Intel ICH5/AD1985",
2114                 .type = AC97_TUNE_HP_ONLY
2115         },
2116 #endif
2117         { } /* terminator */
2118 };
2119 
2120 static int snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
2121                               const char *quirk_override)
2122 {
2123         struct snd_ac97_bus *pbus;
2124         struct snd_ac97_template ac97;
2125         int err;
2126         unsigned int i, codecs;
2127         unsigned int glob_sta = 0;
2128         const struct snd_ac97_bus_ops *ops;
2129         static const struct snd_ac97_bus_ops standard_bus_ops = {
2130                 .write = snd_intel8x0_codec_write,
2131                 .read = snd_intel8x0_codec_read,
2132         };
2133         static const struct snd_ac97_bus_ops ali_bus_ops = {
2134                 .write = snd_intel8x0_ali_codec_write,
2135                 .read = snd_intel8x0_ali_codec_read,
2136         };
2137 
2138         chip->spdif_idx = -1; /* use PCMOUT (or disabled) */
2139         if (!spdif_aclink) {
2140                 switch (chip->device_type) {
2141                 case DEVICE_NFORCE:
2142                         chip->spdif_idx = NVD_SPBAR;
2143                         break;
2144                 case DEVICE_ALI:
2145                         chip->spdif_idx = ALID_AC97SPDIFOUT;
2146                         break;
2147                 case DEVICE_INTEL_ICH4:
2148                         chip->spdif_idx = ICHD_SPBAR;
2149                         break;
2150                 }
2151         }
2152 
2153         chip->in_ac97_init = 1;
2154         
2155         memset(&ac97, 0, sizeof(ac97));
2156         ac97.private_data = chip;
2157         ac97.private_free = snd_intel8x0_mixer_free_ac97;
2158         ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
2159         if (chip->xbox)
2160                 ac97.scaps |= AC97_SCAP_DETECT_BY_VENDOR;
2161         if (chip->device_type != DEVICE_ALI) {
2162                 glob_sta = igetdword(chip, ICHREG(GLOB_STA));
2163                 ops = &standard_bus_ops;
2164                 chip->in_sdin_init = 1;
2165                 codecs = 0;
2166                 for (i = 0; i < chip->max_codecs; i++) {
2167                         if (! (glob_sta & chip->codec_bit[i]))
2168                                 continue;
2169                         if (chip->device_type == DEVICE_INTEL_ICH4) {
2170                                 snd_intel8x0_codec_read_test(chip, codecs);
2171                                 chip->ac97_sdin[codecs] =
2172                                         igetbyte(chip, ICHREG(SDM)) & ICH_LDI_MASK;
2173                                 if (snd_BUG_ON(chip->ac97_sdin[codecs] >= 3))
2174                                         chip->ac97_sdin[codecs] = 0;
2175                         } else
2176                                 chip->ac97_sdin[codecs] = i;
2177                         codecs++;
2178                 }
2179                 chip->in_sdin_init = 0;
2180                 if (! codecs)
2181                         codecs = 1;
2182         } else {
2183                 ops = &ali_bus_ops;
2184                 codecs = 1;
2185                 /* detect the secondary codec */
2186                 for (i = 0; i < 100; i++) {
2187                         unsigned int reg = igetdword(chip, ICHREG(ALI_RTSR));
2188                         if (reg & 0x40) {
2189                                 codecs = 2;
2190                                 break;
2191                         }
2192                         iputdword(chip, ICHREG(ALI_RTSR), reg | 0x40);
2193                         udelay(1);
2194                 }
2195         }
2196         err = snd_ac97_bus(chip->card, 0, ops, chip, &pbus);
2197         if (err < 0)
2198                 goto __err;
2199         pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
2200         if (ac97_clock >= 8000 && ac97_clock <= 48000)
2201                 pbus->clock = ac97_clock;
2202         /* FIXME: my test board doesn't work well with VRA... */
2203         if (chip->device_type == DEVICE_ALI)
2204                 pbus->no_vra = 1;
2205         else
2206                 pbus->dra = 1;
2207         chip->ac97_bus = pbus;
2208         chip->ncodecs = codecs;
2209 
2210         ac97.pci = chip->pci;
2211         for (i = 0; i < codecs; i++) {
2212                 ac97.num = i;
2213                 err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i]);
2214                 if (err < 0) {
2215                         if (err != -EACCES)
2216                                 dev_err(chip->card->dev,
2217                                         "Unable to initialize codec #%d\n", i);
2218                         if (i == 0)
2219                                 goto __err;
2220                 }
2221         }
2222         /* tune up the primary codec */
2223         snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
2224         /* enable separate SDINs for ICH4 */
2225         if (chip->device_type == DEVICE_INTEL_ICH4)
2226                 pbus->isdin = 1;
2227         /* find the available PCM streams */
2228         i = ARRAY_SIZE(ac97_pcm_defs);
2229         if (chip->device_type != DEVICE_INTEL_ICH4)
2230                 i -= 2;         /* do not allocate PCM2IN and MIC2 */
2231         if (chip->spdif_idx < 0)
2232                 i--;            /* do not allocate S/PDIF */
2233         err = snd_ac97_pcm_assign(pbus, i, ac97_pcm_defs);
2234         if (err < 0)
2235                 goto __err;
2236         chip->ichd[ICHD_PCMOUT].pcm = &pbus->pcms[0];
2237         chip->ichd[ICHD_PCMIN].pcm = &pbus->pcms[1];
2238         chip->ichd[ICHD_MIC].pcm = &pbus->pcms[2];
2239         if (chip->spdif_idx >= 0)
2240                 chip->ichd[chip->spdif_idx].pcm = &pbus->pcms[3];
2241         if (chip->device_type == DEVICE_INTEL_ICH4) {
2242                 chip->ichd[ICHD_PCM2IN].pcm = &pbus->pcms[4];
2243                 chip->ichd[ICHD_MIC2].pcm = &pbus->pcms[5];
2244         }
2245         /* enable separate SDINs for ICH4 */
2246         if (chip->device_type == DEVICE_INTEL_ICH4) {
2247                 struct ac97_pcm *pcm = chip->ichd[ICHD_PCM2IN].pcm;
2248                 u8 tmp = igetbyte(chip, ICHREG(SDM));
2249                 tmp &= ~(ICH_DI2L_MASK|ICH_DI1L_MASK);
2250                 if (pcm) {
2251                         tmp |= ICH_SE;  /* steer enable for multiple SDINs */
2252                         tmp |= chip->ac97_sdin[0] << ICH_DI1L_SHIFT;
2253                         for (i = 1; i < 4; i++) {
2254                                 if (pcm->r[0].codec[i]) {
2255                                         tmp |= chip->ac97_sdin[pcm->r[0].codec[1]->num] << ICH_DI2L_SHIFT;
2256                                         break;
2257                                 }
2258                         }
2259                 } else {
2260                         tmp &= ~ICH_SE; /* steer disable */
2261                 }
2262                 iputbyte(chip, ICHREG(SDM), tmp);
2263         }
2264         if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
2265                 chip->multi4 = 1;
2266                 if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE)) {
2267                         chip->multi6 = 1;
2268                         if (chip->ac97[0]->flags & AC97_HAS_8CH)
2269                                 chip->multi8 = 1;
2270                 }
2271         }
2272         if (pbus->pcms[0].r[1].rslots[0]) {
2273                 chip->dra = 1;
2274         }
2275         if (chip->device_type == DEVICE_INTEL_ICH4) {
2276                 if ((igetdword(chip, ICHREG(GLOB_STA)) & ICH_SAMPLE_CAP) == ICH_SAMPLE_16_20)
2277                         chip->smp20bit = 1;
2278         }
2279         if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2280                 /* 48kHz only */
2281                 chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000;
2282         }
2283         if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2284                 /* use slot 10/11 for SPDIF */
2285                 u32 val;
2286                 val = igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK;
2287                 val |= ICH_PCM_SPDIF_1011;
2288                 iputdword(chip, ICHREG(GLOB_CNT), val);
2289                 snd_ac97_update_bits(chip->ac97[0], AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
2290         }
2291         chip->in_ac97_init = 0;
2292         return 0;
2293 
2294  __err:
2295         /* clear the cold-reset bit for the next chance */
2296         if (chip->device_type != DEVICE_ALI)
2297                 iputdword(chip, ICHREG(GLOB_CNT),
2298                           igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
2299         return err;
2300 }
2301 
2302 
2303 /*
2304  *
2305  */
2306 
2307 static void do_ali_reset(struct intel8x0 *chip)
2308 {
2309         iputdword(chip, ICHREG(ALI_SCR), ICH_ALI_SC_RESET);
2310         iputdword(chip, ICHREG(ALI_FIFOCR1), 0x83838383);
2311         iputdword(chip, ICHREG(ALI_FIFOCR2), 0x83838383);
2312         iputdword(chip, ICHREG(ALI_FIFOCR3), 0x83838383);
2313         iputdword(chip, ICHREG(ALI_INTERFACECR),
2314                   ICH_ALI_IF_PI|ICH_ALI_IF_PO);
2315         iputdword(chip, ICHREG(ALI_INTERRUPTCR), 0x00000000);
2316         iputdword(chip, ICHREG(ALI_INTERRUPTSR), 0x00000000);
2317 }
2318 
2319 #ifdef CONFIG_SND_AC97_POWER_SAVE
2320 static const struct snd_pci_quirk ich_chip_reset_mode[] = {
2321         SND_PCI_QUIRK(0x1014, 0x051f, "Thinkpad R32", 1),
2322         { } /* end */
2323 };
2324 
2325 static int snd_intel8x0_ich_chip_cold_reset(struct intel8x0 *chip)
2326 {
2327         unsigned int cnt;
2328         /* ACLink on, 2 channels */
2329 
2330         if (snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2331                 return -EIO;
2332 
2333         cnt = igetdword(chip, ICHREG(GLOB_CNT));
2334         cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2335 
2336         /* do cold reset - the full ac97 powerdown may leave the controller
2337          * in a warm state but actually it cannot communicate with the codec.
2338          */
2339         iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_AC97COLD);
2340         cnt = igetdword(chip, ICHREG(GLOB_CNT));
2341         udelay(10);
2342         iputdword(chip, ICHREG(GLOB_CNT), cnt | ICH_AC97COLD);
2343         msleep(1);
2344         return 0;
2345 }
2346 #define snd_intel8x0_ich_chip_can_cold_reset(chip) \
2347         (!snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2348 #else
2349 #define snd_intel8x0_ich_chip_cold_reset(chip)  0
2350 #define snd_intel8x0_ich_chip_can_cold_reset(chip) (0)
2351 #endif
2352 
2353 static int snd_intel8x0_ich_chip_reset(struct intel8x0 *chip)
2354 {
2355         unsigned long end_time;
2356         unsigned int cnt;
2357         /* ACLink on, 2 channels */
2358         cnt = igetdword(chip, ICHREG(GLOB_CNT));
2359         cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2360         /* finish cold or do warm reset */
2361         cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
2362         iputdword(chip, ICHREG(GLOB_CNT), cnt);
2363         end_time = (jiffies + (HZ / 4)) + 1;
2364         do {
2365                 if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
2366                         return 0;
2367                 schedule_timeout_uninterruptible(1);
2368         } while (time_after_eq(end_time, jiffies));
2369         dev_err(chip->card->dev, "AC'97 warm reset still in progress? [0x%x]\n",
2370                    igetdword(chip, ICHREG(GLOB_CNT)));
2371         return -EIO;
2372 }
2373 
2374 static int snd_intel8x0_ich_chip_init(struct intel8x0 *chip, int probing)
2375 {
2376         unsigned long end_time;
2377         unsigned int status, nstatus;
2378         unsigned int cnt;
2379         int err;
2380 
2381         /* put logic to right state */
2382         /* first clear status bits */
2383         status = ICH_RCS | ICH_MCINT | ICH_POINT | ICH_PIINT;
2384         if (chip->device_type == DEVICE_NFORCE)
2385                 status |= ICH_NVSPINT;
2386         cnt = igetdword(chip, ICHREG(GLOB_STA));
2387         iputdword(chip, ICHREG(GLOB_STA), cnt & status);
2388 
2389         if (snd_intel8x0_ich_chip_can_cold_reset(chip))
2390                 err = snd_intel8x0_ich_chip_cold_reset(chip);
2391         else
2392                 err = snd_intel8x0_ich_chip_reset(chip);
2393         if (err < 0)
2394                 return err;
2395 
2396         if (probing) {
2397                 /* wait for any codec ready status.
2398                  * Once it becomes ready it should remain ready
2399                  * as long as we do not disable the ac97 link.
2400                  */
2401                 end_time = jiffies + HZ;
2402                 do {
2403                         status = igetdword(chip, ICHREG(GLOB_STA)) &
2404                                 chip->codec_isr_bits;
2405                         if (status)
2406                                 break;
2407                         schedule_timeout_uninterruptible(1);
2408                 } while (time_after_eq(end_time, jiffies));
2409                 if (! status) {
2410                         /* no codec is found */
2411                         dev_err(chip->card->dev,
2412                                 "codec_ready: codec is not ready [0x%x]\n",
2413                                    igetdword(chip, ICHREG(GLOB_STA)));
2414                         return -EIO;
2415                 }
2416 
2417                 /* wait for other codecs ready status. */
2418                 end_time = jiffies + HZ / 4;
2419                 while (status != chip->codec_isr_bits &&
2420                        time_after_eq(end_time, jiffies)) {
2421                         schedule_timeout_uninterruptible(1);
2422                         status |= igetdword(chip, ICHREG(GLOB_STA)) &
2423                                 chip->codec_isr_bits;
2424                 }
2425 
2426         } else {
2427                 /* resume phase */
2428                 int i;
2429                 status = 0;
2430                 for (i = 0; i < chip->ncodecs; i++)
2431                         if (chip->ac97[i])
2432                                 status |= chip->codec_bit[chip->ac97_sdin[i]];
2433                 /* wait until all the probed codecs are ready */
2434                 end_time = jiffies + HZ;
2435                 do {
2436                         nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
2437                                 chip->codec_isr_bits;
2438                         if (status == nstatus)
2439                                 break;
2440                         schedule_timeout_uninterruptible(1);
2441                 } while (time_after_eq(end_time, jiffies));
2442         }
2443 
2444         if (chip->device_type == DEVICE_SIS) {
2445                 /* unmute the output on SIS7012 */
2446                 iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
2447         }
2448         if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2449                 /* enable SPDIF interrupt */
2450                 unsigned int val;
2451                 pci_read_config_dword(chip->pci, 0x4c, &val);
2452                 val |= 0x1000000;
2453                 pci_write_config_dword(chip->pci, 0x4c, val);
2454         }
2455         return 0;
2456 }
2457 
2458 static int snd_intel8x0_ali_chip_init(struct intel8x0 *chip, int probing)
2459 {
2460         u32 reg;
2461         int i = 0;
2462 
2463         reg = igetdword(chip, ICHREG(ALI_SCR));
2464         if ((reg & 2) == 0)     /* Cold required */
2465                 reg |= 2;
2466         else
2467                 reg |= 1;       /* Warm */
2468         reg &= ~0x80000000;     /* ACLink on */
2469         iputdword(chip, ICHREG(ALI_SCR), reg);
2470 
2471         for (i = 0; i < HZ / 2; i++) {
2472                 if (! (igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ALI_INT_GPIO))
2473                         goto __ok;
2474                 schedule_timeout_uninterruptible(1);
2475         }
2476         dev_err(chip->card->dev, "AC'97 reset failed.\n");
2477         if (probing)
2478                 return -EIO;
2479 
2480  __ok:
2481         for (i = 0; i < HZ / 2; i++) {
2482                 reg = igetdword(chip, ICHREG(ALI_RTSR));
2483                 if (reg & 0x80) /* primary codec */
2484                         break;
2485                 iputdword(chip, ICHREG(ALI_RTSR), reg | 0x80);
2486                 schedule_timeout_uninterruptible(1);
2487         }
2488 
2489         do_ali_reset(chip);
2490         return 0;
2491 }
2492 
2493 static int snd_intel8x0_chip_init(struct intel8x0 *chip, int probing)
2494 {
2495         unsigned int i, timeout;
2496         int err;
2497         
2498         if (chip->device_type != DEVICE_ALI) {
2499                 err = snd_intel8x0_ich_chip_init(chip, probing);
2500                 if (err < 0)
2501                         return err;
2502                 iagetword(chip, 0);     /* clear semaphore flag */
2503         } else {
2504                 err = snd_intel8x0_ali_chip_init(chip, probing);
2505                 if (err < 0)
2506                         return err;
2507         }
2508 
2509         /* disable interrupts */
2510         for (i = 0; i < chip->bdbars_count; i++)
2511                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2512         /* reset channels */
2513         for (i = 0; i < chip->bdbars_count; i++)
2514                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2515         for (i = 0; i < chip->bdbars_count; i++) {
2516                 timeout = 100000;
2517                 while (--timeout != 0) {
2518                         if ((igetbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset) & ICH_RESETREGS) == 0)
2519                                 break;
2520                 }
2521                 if (timeout == 0)
2522                         dev_err(chip->card->dev, "reset of registers failed?\n");
2523         }
2524         /* initialize Buffer Descriptor Lists */
2525         for (i = 0; i < chip->bdbars_count; i++)
2526                 iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset,
2527                           chip->ichd[i].bdbar_addr);
2528         return 0;
2529 }
2530 
2531 static int snd_intel8x0_free(struct intel8x0 *chip)
2532 {
2533         unsigned int i;
2534 
2535         if (chip->irq < 0)
2536                 goto __hw_end;
2537         /* disable interrupts */
2538         for (i = 0; i < chip->bdbars_count; i++)
2539                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2540         /* reset channels */
2541         for (i = 0; i < chip->bdbars_count; i++)
2542                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2543         if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2544                 /* stop the spdif interrupt */
2545                 unsigned int val;
2546                 pci_read_config_dword(chip->pci, 0x4c, &val);
2547                 val &= ~0x1000000;
2548                 pci_write_config_dword(chip->pci, 0x4c, val);
2549         }
2550         /* --- */
2551 
2552       __hw_end:
2553         if (chip->irq >= 0)
2554                 free_irq(chip->irq, chip);
2555         if (chip->bdbars.area)
2556                 snd_dma_free_pages(&chip->bdbars);
2557         if (chip->addr)
2558                 pci_iounmap(chip->pci, chip->addr);
2559         if (chip->bmaddr)
2560                 pci_iounmap(chip->pci, chip->bmaddr);
2561         pci_release_regions(chip->pci);
2562         pci_disable_device(chip->pci);
2563         kfree(chip);
2564         return 0;
2565 }
2566 
2567 #ifdef CONFIG_PM_SLEEP
2568 /*
2569  * power management
2570  */
2571 static int intel8x0_suspend(struct device *dev)
2572 {
2573         struct snd_card *card = dev_get_drvdata(dev);
2574         struct intel8x0 *chip = card->private_data;
2575         int i;
2576 
2577         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2578         for (i = 0; i < chip->ncodecs; i++)
2579                 snd_ac97_suspend(chip->ac97[i]);
2580         if (chip->device_type == DEVICE_INTEL_ICH4)
2581                 chip->sdm_saved = igetbyte(chip, ICHREG(SDM));
2582 
2583         if (chip->irq >= 0) {
2584                 free_irq(chip->irq, chip);
2585                 chip->irq = -1;
2586                 card->sync_irq = -1;
2587         }
2588         return 0;
2589 }
2590 
2591 static int intel8x0_resume(struct device *dev)
2592 {
2593         struct pci_dev *pci = to_pci_dev(dev);
2594         struct snd_card *card = dev_get_drvdata(dev);
2595         struct intel8x0 *chip = card->private_data;
2596         int i;
2597 
2598         snd_intel8x0_chip_init(chip, 0);
2599         if (request_irq(pci->irq, snd_intel8x0_interrupt,
2600                         IRQF_SHARED, KBUILD_MODNAME, chip)) {
2601                 dev_err(dev, "unable to grab IRQ %d, disabling device\n",
2602                         pci->irq);
2603                 snd_card_disconnect(card);
2604                 return -EIO;
2605         }
2606         chip->irq = pci->irq;
2607         card->sync_irq = chip->irq;
2608 
2609         /* re-initialize mixer stuff */
2610         if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2611                 /* enable separate SDINs for ICH4 */
2612                 iputbyte(chip, ICHREG(SDM), chip->sdm_saved);
2613                 /* use slot 10/11 for SPDIF */
2614                 iputdword(chip, ICHREG(GLOB_CNT),
2615                           (igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK) |
2616                           ICH_PCM_SPDIF_1011);
2617         }
2618 
2619         for (i = 0; i < chip->ncodecs; i++)
2620                 snd_ac97_resume(chip->ac97[i]);
2621 
2622         /* resume status */
2623         for (i = 0; i < chip->bdbars_count; i++) {
2624                 struct ichdev *ichdev = &chip->ichd[i];
2625                 unsigned long port = ichdev->reg_offset;
2626                 if (! ichdev->substream || ! ichdev->suspended)
2627                         continue;
2628                 if (ichdev->ichd == ICHD_PCMOUT)
2629                         snd_intel8x0_setup_pcm_out(chip, ichdev->substream->runtime);
2630                 iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
2631                 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
2632                 iputbyte(chip, port + ICH_REG_OFF_CIV, ichdev->civ);
2633                 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
2634         }
2635 
2636         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2637         return 0;
2638 }
2639 
2640 static SIMPLE_DEV_PM_OPS(intel8x0_pm, intel8x0_suspend, intel8x0_resume);
2641 #define INTEL8X0_PM_OPS &intel8x0_pm
2642 #else
2643 #define INTEL8X0_PM_OPS NULL
2644 #endif /* CONFIG_PM_SLEEP */
2645 
2646 #define INTEL8X0_TESTBUF_SIZE   32768   /* enough large for one shot */
2647 
2648 static void intel8x0_measure_ac97_clock(struct intel8x0 *chip)
2649 {
2650         struct snd_pcm_substream *subs;
2651         struct ichdev *ichdev;
2652         unsigned long port;
2653         unsigned long pos, pos1, t;
2654         int civ, timeout = 1000, attempt = 1;
2655         ktime_t start_time, stop_time;
2656 
2657         if (chip->ac97_bus->clock != 48000)
2658                 return; /* specified in module option */
2659 
2660       __again:
2661         subs = chip->pcm[0]->streams[0].substream;
2662         if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
2663                 dev_warn(chip->card->dev,
2664                          "no playback buffer allocated - aborting measure ac97 clock\n");
2665                 return;
2666         }
2667         ichdev = &chip->ichd[ICHD_PCMOUT];
2668         ichdev->physbuf = subs->dma_buffer.addr;
2669         ichdev->size = ichdev->fragsize = INTEL8X0_TESTBUF_SIZE;
2670         ichdev->substream = NULL; /* don't process interrupts */
2671 
2672         /* set rate */
2673         if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) {
2674                 dev_err(chip->card->dev, "cannot set ac97 rate: clock = %d\n",
2675                         chip->ac97_bus->clock);
2676                 return;
2677         }
2678         snd_intel8x0_setup_periods(chip, ichdev);
2679         port = ichdev->reg_offset;
2680         spin_lock_irq(&chip->reg_lock);
2681         chip->in_measurement = 1;
2682         /* trigger */
2683         if (chip->device_type != DEVICE_ALI)
2684                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
2685         else {
2686                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
2687                 iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
2688         }
2689         start_time = ktime_get();
2690         spin_unlock_irq(&chip->reg_lock);
2691         msleep(50);
2692         spin_lock_irq(&chip->reg_lock);
2693         /* check the position */
2694         do {
2695                 civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
2696                 pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
2697                 if (pos1 == 0) {
2698                         udelay(10);
2699                         continue;
2700                 }
2701                 if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
2702                     pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
2703                         break;
2704         } while (timeout--);
2705         if (pos1 == 0) {        /* oops, this value is not reliable */
2706                 pos = 0;
2707         } else {
2708                 pos = ichdev->fragsize1;
2709                 pos -= pos1 << ichdev->pos_shift;
2710                 pos += ichdev->position;
2711         }
2712         chip->in_measurement = 0;
2713         stop_time = ktime_get();
2714         /* stop */
2715         if (chip->device_type == DEVICE_ALI) {
2716                 iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
2717                 iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2718                 while (igetbyte(chip, port + ICH_REG_OFF_CR))
2719                         ;
2720         } else {
2721                 iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2722                 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
2723                         ;
2724         }
2725         iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
2726         spin_unlock_irq(&chip->reg_lock);
2727 
2728         if (pos == 0) {
2729                 dev_err(chip->card->dev,
2730                         "measure - unreliable DMA position..\n");
2731               __retry:
2732                 if (attempt < 3) {
2733                         msleep(300);
2734                         attempt++;
2735                         goto __again;
2736                 }
2737                 goto __end;
2738         }
2739 
2740         pos /= 4;
2741         t = ktime_us_delta(stop_time, start_time);
2742         dev_info(chip->card->dev,
2743                  "%s: measured %lu usecs (%lu samples)\n", __func__, t, pos);
2744         if (t == 0) {
2745                 dev_err(chip->card->dev, "?? calculation error..\n");
2746                 goto __retry;
2747         }
2748         pos *= 1000;
2749         pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
2750         if (pos < 40000 || pos >= 60000) {
2751                 /* abnormal value. hw problem? */
2752                 dev_info(chip->card->dev, "measured clock %ld rejected\n", pos);
2753                 goto __retry;
2754         } else if (pos > 40500 && pos < 41500)
2755                 /* first exception - 41000Hz reference clock */
2756                 chip->ac97_bus->clock = 41000;
2757         else if (pos > 43600 && pos < 44600)
2758                 /* second exception - 44100HZ reference clock */
2759                 chip->ac97_bus->clock = 44100;
2760         else if (pos < 47500 || pos > 48500)
2761                 /* not 48000Hz, tuning the clock.. */
2762                 chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
2763       __end:
2764         dev_info(chip->card->dev, "clocking to %d\n", chip->ac97_bus->clock);
2765         snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0);
2766 }
2767 
2768 static const struct snd_pci_quirk intel8x0_clock_list[] = {
2769         SND_PCI_QUIRK(0x0e11, 0x008a, "AD1885", 41000),
2770         SND_PCI_QUIRK(0x1014, 0x0581, "AD1981B", 48000),
2771         SND_PCI_QUIRK(0x1028, 0x00be, "AD1885", 44100),
2772         SND_PCI_QUIRK(0x1028, 0x0177, "AD1980", 48000),
2773         SND_PCI_QUIRK(0x1028, 0x01ad, "AD1981B", 48000),
2774         SND_PCI_QUIRK(0x1043, 0x80f3, "AD1985", 48000),
2775         { }     /* terminator */
2776 };
2777 
2778 static int intel8x0_in_clock_list(struct intel8x0 *chip)
2779 {
2780         struct pci_dev *pci = chip->pci;
2781         const struct snd_pci_quirk *wl;
2782 
2783         wl = snd_pci_quirk_lookup(pci, intel8x0_clock_list);
2784         if (!wl)
2785                 return 0;
2786         dev_info(chip->card->dev, "allow list rate for %04x:%04x is %i\n",
2787                pci->subsystem_vendor, pci->subsystem_device, wl->value);
2788         chip->ac97_bus->clock = wl->value;
2789         return 1;
2790 }
2791 
2792 static void snd_intel8x0_proc_read(struct snd_info_entry * entry,
2793                                    struct snd_info_buffer *buffer)
2794 {
2795         struct intel8x0 *chip = entry->private_data;
2796         unsigned int tmp;
2797 
2798         snd_iprintf(buffer, "Intel8x0\n\n");
2799         if (chip->device_type == DEVICE_ALI)
2800                 return;
2801         tmp = igetdword(chip, ICHREG(GLOB_STA));
2802         snd_iprintf(buffer, "Global control        : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
2803         snd_iprintf(buffer, "Global status         : 0x%08x\n", tmp);
2804         if (chip->device_type == DEVICE_INTEL_ICH4)
2805                 snd_iprintf(buffer, "SDM                   : 0x%08x\n", igetdword(chip, ICHREG(SDM)));
2806         snd_iprintf(buffer, "AC'97 codecs ready    :");
2807         if (tmp & chip->codec_isr_bits) {
2808                 int i;
2809                 static const char *codecs[3] = {
2810                         "primary", "secondary", "tertiary"
2811                 };
2812                 for (i = 0; i < chip->max_codecs; i++)
2813                         if (tmp & chip->codec_bit[i])
2814                                 snd_iprintf(buffer, " %s", codecs[i]);
2815         } else
2816                 snd_iprintf(buffer, " none");
2817         snd_iprintf(buffer, "\n");
2818         if (chip->device_type == DEVICE_INTEL_ICH4 ||
2819             chip->device_type == DEVICE_SIS)
2820                 snd_iprintf(buffer, "AC'97 codecs SDIN     : %i %i %i\n",
2821                         chip->ac97_sdin[0],
2822                         chip->ac97_sdin[1],
2823                         chip->ac97_sdin[2]);
2824 }
2825 
2826 static void snd_intel8x0_proc_init(struct intel8x0 *chip)
2827 {
2828         snd_card_ro_proc_new(chip->card, "intel8x0", chip,
2829                              snd_intel8x0_proc_read);
2830 }
2831 
2832 static int snd_intel8x0_dev_free(struct snd_device *device)
2833 {
2834         struct intel8x0 *chip = device->device_data;
2835         return snd_intel8x0_free(chip);
2836 }
2837 
2838 struct ich_reg_info {
2839         unsigned int int_sta_mask;
2840         unsigned int offset;
2841 };
2842 
2843 static const unsigned int ich_codec_bits[3] = {
2844         ICH_PCR, ICH_SCR, ICH_TCR
2845 };
2846 static const unsigned int sis_codec_bits[3] = {
2847         ICH_PCR, ICH_SCR, ICH_SIS_TCR
2848 };
2849 
2850 static int snd_intel8x0_inside_vm(struct pci_dev *pci)
2851 {
2852         int result  = inside_vm;
2853         char *msg   = NULL;
2854 
2855         /* check module parameter first (override detection) */
2856         if (result >= 0) {
2857                 msg = result ? "enable (forced) VM" : "disable (forced) VM";
2858                 goto fini;
2859         }
2860 
2861         /* check for known (emulated) devices */
2862         result = 0;
2863         if (pci->subsystem_vendor == PCI_SUBVENDOR_ID_REDHAT_QUMRANET &&
2864             pci->subsystem_device == PCI_SUBDEVICE_ID_QEMU) {
2865                 /* KVM emulated sound, PCI SSID: 1af4:1100 */
2866                 msg = "enable KVM";
2867                 result = 1;
2868         } else if (pci->subsystem_vendor == 0x1ab8) {
2869                 /* Parallels VM emulated sound, PCI SSID: 1ab8:xxxx */
2870                 msg = "enable Parallels VM";
2871                 result = 1;
2872         }
2873 
2874 fini:
2875         if (msg != NULL)
2876                 dev_info(&pci->dev, "%s optimization\n", msg);
2877 
2878         return result;
2879 }
2880 
2881 static int snd_intel8x0_create(struct snd_card *card,
2882                                struct pci_dev *pci,
2883                                unsigned long device_type,
2884                                struct intel8x0 **r_intel8x0)
2885 {
2886         struct intel8x0 *chip;
2887         int err;
2888         unsigned int i;
2889         unsigned int int_sta_masks;
2890         struct ichdev *ichdev;
2891         static const struct snd_device_ops ops = {
2892                 .dev_free =     snd_intel8x0_dev_free,
2893         };
2894 
2895         static const unsigned int bdbars[] = {
2896                 3, /* DEVICE_INTEL */
2897                 6, /* DEVICE_INTEL_ICH4 */
2898                 3, /* DEVICE_SIS */
2899                 6, /* DEVICE_ALI */
2900                 4, /* DEVICE_NFORCE */
2901         };
2902         static const struct ich_reg_info intel_regs[6] = {
2903                 { ICH_PIINT, 0 },
2904                 { ICH_POINT, 0x10 },
2905                 { ICH_MCINT, 0x20 },
2906                 { ICH_M2INT, 0x40 },
2907                 { ICH_P2INT, 0x50 },
2908                 { ICH_SPINT, 0x60 },
2909         };
2910         static const struct ich_reg_info nforce_regs[4] = {
2911                 { ICH_PIINT, 0 },
2912                 { ICH_POINT, 0x10 },
2913                 { ICH_MCINT, 0x20 },
2914                 { ICH_NVSPINT, 0x70 },
2915         };
2916         static const struct ich_reg_info ali_regs[6] = {
2917                 { ALI_INT_PCMIN, 0x40 },
2918                 { ALI_INT_PCMOUT, 0x50 },
2919                 { ALI_INT_MICIN, 0x60 },
2920                 { ALI_INT_CODECSPDIFOUT, 0x70 },
2921                 { ALI_INT_SPDIFIN, 0xa0 },
2922                 { ALI_INT_SPDIFOUT, 0xb0 },
2923         };
2924         const struct ich_reg_info *tbl;
2925 
2926         *r_intel8x0 = NULL;
2927 
2928         err = pci_enable_device(pci);
2929         if (err < 0)
2930                 return err;
2931 
2932         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2933         if (chip == NULL) {
2934                 pci_disable_device(pci);
2935                 return -ENOMEM;
2936         }
2937         spin_lock_init(&chip->reg_lock);
2938         chip->device_type = device_type;
2939         chip->card = card;
2940         chip->pci = pci;
2941         chip->irq = -1;
2942 
2943         /* module parameters */
2944         chip->buggy_irq = buggy_irq;
2945         chip->buggy_semaphore = buggy_semaphore;
2946         if (xbox)
2947                 chip->xbox = 1;
2948 
2949         chip->inside_vm = snd_intel8x0_inside_vm(pci);
2950 
2951         /*
2952          * Intel 82443MX running a 100MHz processor system bus has a hardware
2953          * bug, which aborts PCI busmaster for audio transfer.  A workaround
2954          * is to set the pages as non-cached.  For details, see the errata in
2955          *     http://download.intel.com/design/chipsets/specupdt/24505108.pdf
2956          */
2957         if (pci->vendor == PCI_VENDOR_ID_INTEL &&
2958             pci->device == PCI_DEVICE_ID_INTEL_440MX)
2959                 chip->fix_nocache = 1; /* enable workaround */
2960 
2961         err = pci_request_regions(pci, card->shortname);
2962         if (err < 0) {
2963                 kfree(chip);
2964                 pci_disable_device(pci);
2965                 return err;
2966         }
2967 
2968         if (device_type == DEVICE_ALI) {
2969                 /* ALI5455 has no ac97 region */
2970                 chip->bmaddr = pci_iomap(pci, 0, 0);
2971                 goto port_inited;
2972         }
2973 
2974         if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
2975                 chip->addr = pci_iomap(pci, 2, 0);
2976         else
2977                 chip->addr = pci_iomap(pci, 0, 0);
2978         if (!chip->addr) {
2979                 dev_err(card->dev, "AC'97 space ioremap problem\n");
2980                 snd_intel8x0_free(chip);
2981                 return -EIO;
2982         }
2983         if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
2984                 chip->bmaddr = pci_iomap(pci, 3, 0);
2985         else
2986                 chip->bmaddr = pci_iomap(pci, 1, 0);
2987 
2988  port_inited:
2989         if (!chip->bmaddr) {
2990                 dev_err(card->dev, "Controller space ioremap problem\n");
2991                 snd_intel8x0_free(chip);
2992                 return -EIO;
2993         }
2994         chip->bdbars_count = bdbars[device_type];
2995 
2996         /* initialize offsets */
2997         switch (device_type) {
2998         case DEVICE_NFORCE:
2999                 tbl = nforce_regs;
3000                 break;
3001         case DEVICE_ALI:
3002                 tbl = ali_regs;
3003                 break;
3004         default:
3005                 tbl = intel_regs;
3006                 break;
3007         }
3008         for (i = 0; i < chip->bdbars_count; i++) {
3009                 ichdev = &chip->ichd[i];
3010                 ichdev->ichd = i;
3011                 ichdev->reg_offset = tbl[i].offset;
3012                 ichdev->int_sta_mask = tbl[i].int_sta_mask;
3013                 if (device_type == DEVICE_SIS) {
3014                         /* SiS 7012 swaps the registers */
3015                         ichdev->roff_sr = ICH_REG_OFF_PICB;
3016                         ichdev->roff_picb = ICH_REG_OFF_SR;
3017                 } else {
3018                         ichdev->roff_sr = ICH_REG_OFF_SR;
3019                         ichdev->roff_picb = ICH_REG_OFF_PICB;
3020                 }
3021                 if (device_type == DEVICE_ALI)
3022                         ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
3023                 /* SIS7012 handles the pcm data in bytes, others are in samples */
3024                 ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
3025         }
3026 
3027         /* allocate buffer descriptor lists */
3028         /* the start of each lists must be aligned to 8 bytes */
3029         if (snd_dma_alloc_pages(intel8x0_dma_type(chip), &pci->dev,
3030                                 chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
3031                                 &chip->bdbars) < 0) {
3032                 snd_intel8x0_free(chip);
3033                 dev_err(card->dev, "cannot allocate buffer descriptors\n");
3034                 return -ENOMEM;
3035         }
3036         /* tables must be aligned to 8 bytes here, but the kernel pages
3037            are much bigger, so we don't care (on i386) */
3038         int_sta_masks = 0;
3039         for (i = 0; i < chip->bdbars_count; i++) {
3040                 ichdev = &chip->ichd[i];
3041                 ichdev->bdbar = ((__le32 *)chip->bdbars.area) +
3042                         (i * ICH_MAX_FRAGS * 2);
3043                 ichdev->bdbar_addr = chip->bdbars.addr +
3044                         (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
3045                 int_sta_masks |= ichdev->int_sta_mask;
3046         }
3047         chip->int_sta_reg = device_type == DEVICE_ALI ?
3048                 ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
3049         chip->int_sta_mask = int_sta_masks;
3050 
3051         pci_set_master(pci);
3052 
3053         switch(chip->device_type) {
3054         case DEVICE_INTEL_ICH4:
3055                 /* ICH4 can have three codecs */
3056                 chip->max_codecs = 3;
3057                 chip->codec_bit = ich_codec_bits;
3058                 chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_TRI;
3059                 break;
3060         case DEVICE_SIS:
3061                 /* recent SIS7012 can have three codecs */
3062                 chip->max_codecs = 3;
3063                 chip->codec_bit = sis_codec_bits;
3064                 chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_SIS_TRI;
3065                 break;
3066         default:
3067                 /* others up to two codecs */
3068                 chip->max_codecs = 2;
3069                 chip->codec_bit = ich_codec_bits;
3070                 chip->codec_ready_bits = ICH_PRI | ICH_SRI;
3071                 break;
3072         }
3073         for (i = 0; i < chip->max_codecs; i++)
3074                 chip->codec_isr_bits |= chip->codec_bit[i];
3075 
3076         err = snd_intel8x0_chip_init(chip, 1);
3077         if (err < 0) {
3078                 snd_intel8x0_free(chip);
3079                 return err;
3080         }
3081 
3082         /* request irq after initializaing int_sta_mask, etc */
3083         if (request_irq(pci->irq, snd_intel8x0_interrupt,
3084                         IRQF_SHARED, KBUILD_MODNAME, chip)) {
3085                 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
3086                 snd_intel8x0_free(chip);
3087                 return -EBUSY;
3088         }
3089         chip->irq = pci->irq;
3090         card->sync_irq = chip->irq;
3091 
3092         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
3093         if (err < 0) {
3094                 snd_intel8x0_free(chip);
3095                 return err;
3096         }
3097 
3098         *r_intel8x0 = chip;
3099         return 0;
3100 }
3101 
3102 static struct shortname_table {
3103         unsigned int id;
3104         const char *s;
3105 } shortnames[] = {
3106         { PCI_DEVICE_ID_INTEL_82801AA_5, "Intel 82801AA-ICH" },
3107         { PCI_DEVICE_ID_INTEL_82801AB_5, "Intel 82901AB-ICH0" },
3108         { PCI_DEVICE_ID_INTEL_82801BA_4, "Intel 82801BA-ICH2" },
3109         { PCI_DEVICE_ID_INTEL_440MX, "Intel 440MX" },
3110         { PCI_DEVICE_ID_INTEL_82801CA_5, "Intel 82801CA-ICH3" },
3111         { PCI_DEVICE_ID_INTEL_82801DB_5, "Intel 82801DB-ICH4" },
3112         { PCI_DEVICE_ID_INTEL_82801EB_5, "Intel ICH5" },
3113         { PCI_DEVICE_ID_INTEL_ESB_5, "Intel 6300ESB" },
3114         { PCI_DEVICE_ID_INTEL_ICH6_18, "Intel ICH6" },
3115         { PCI_DEVICE_ID_INTEL_ICH7_20, "Intel ICH7" },
3116         { PCI_DEVICE_ID_INTEL_ESB2_14, "Intel ESB2" },
3117         { PCI_DEVICE_ID_SI_7012, "SiS SI7012" },
3118         { PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO, "NVidia nForce" },
3119         { PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
3120         { PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
3121         { PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO, "NVidia CK8S" },
3122         { PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, "NVidia CK804" },
3123         { PCI_DEVICE_ID_NVIDIA_CK8_AUDIO, "NVidia CK8" },
3124         { 0x003a, "NVidia MCP04" },
3125         { 0x746d, "AMD AMD8111" },
3126         { 0x7445, "AMD AMD768" },
3127         { 0x5455, "ALi M5455" },
3128         { 0, NULL },
3129 };
3130 
3131 static const struct snd_pci_quirk spdif_aclink_defaults[] = {
3132         SND_PCI_QUIRK(0x147b, 0x1c1a, "ASUS KN8", 1),
3133         { } /* end */
3134 };
3135 
3136 /* look up allow/deny list for SPDIF over ac-link */
3137 static int check_default_spdif_aclink(struct pci_dev *pci)
3138 {
3139         const struct snd_pci_quirk *w;
3140 
3141         w = snd_pci_quirk_lookup(pci, spdif_aclink_defaults);
3142         if (w) {
3143                 if (w->value)
3144                         dev_dbg(&pci->dev,
3145                                 "Using SPDIF over AC-Link for %s\n",
3146                                     snd_pci_quirk_name(w));
3147                 else
3148                         dev_dbg(&pci->dev,
3149                                 "Using integrated SPDIF DMA for %s\n",
3150                                     snd_pci_quirk_name(w));
3151                 return w->value;
3152         }
3153         return 0;
3154 }
3155 
3156 static int snd_intel8x0_probe(struct pci_dev *pci,
3157                               const struct pci_device_id *pci_id)
3158 {
3159         struct snd_card *card;
3160         struct intel8x0 *chip;
3161         int err;
3162         struct shortname_table *name;
3163 
3164         err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
3165         if (err < 0)
3166                 return err;
3167 
3168         if (spdif_aclink < 0)
3169                 spdif_aclink = check_default_spdif_aclink(pci);
3170 
3171         strcpy(card->driver, "ICH");
3172         if (!spdif_aclink) {
3173                 switch (pci_id->driver_data) {
3174                 case DEVICE_NFORCE:
3175                         strcpy(card->driver, "NFORCE");
3176                         break;
3177                 case DEVICE_INTEL_ICH4:
3178                         strcpy(card->driver, "ICH4");
3179                 }
3180         }
3181 
3182         strcpy(card->shortname, "Intel ICH");
3183         for (name = shortnames; name->id; name++) {
3184                 if (pci->device == name->id) {
3185                         strcpy(card->shortname, name->s);
3186                         break;
3187                 }
3188         }
3189 
3190         if (buggy_irq < 0) {
3191                 /* some Nforce[2] and ICH boards have problems with IRQ handling.
3192                  * Needs to return IRQ_HANDLED for unknown irqs.
3193                  */
3194                 if (pci_id->driver_data == DEVICE_NFORCE)
3195                         buggy_irq = 1;
3196                 else
3197                         buggy_irq = 0;
3198         }
3199 
3200         err = snd_intel8x0_create(card, pci, pci_id->driver_data, &chip);
3201         if (err < 0) {
3202                 snd_card_free(card);
3203                 return err;
3204         }
3205         card->private_data = chip;
3206 
3207         err = snd_intel8x0_mixer(chip, ac97_clock, ac97_quirk);
3208         if (err < 0) {
3209                 snd_card_free(card);
3210                 return err;
3211         }
3212         err = snd_intel8x0_pcm(chip);
3213         if (err < 0) {
3214                 snd_card_free(card);
3215                 return err;
3216         }
3217         
3218         snd_intel8x0_proc_init(chip);
3219 
3220         snprintf(card->longname, sizeof(card->longname),
3221                  "%s with %s at irq %i", card->shortname,
3222                  snd_ac97_get_short_name(chip->ac97[0]), chip->irq);
3223 
3224         if (ac97_clock == 0 || ac97_clock == 1) {
3225                 if (ac97_clock == 0) {
3226                         if (intel8x0_in_clock_list(chip) == 0)
3227                                 intel8x0_measure_ac97_clock(chip);
3228                 } else {
3229                         intel8x0_measure_ac97_clock(chip);
3230                 }
3231         }
3232 
3233         err = snd_card_register(card);
3234         if (err < 0) {
3235                 snd_card_free(card);
3236                 return err;
3237         }
3238         pci_set_drvdata(pci, card);
3239         return 0;
3240 }
3241 
3242 static void snd_intel8x0_remove(struct pci_dev *pci)
3243 {
3244         snd_card_free(pci_get_drvdata(pci));
3245 }
3246 
3247 static struct pci_driver intel8x0_driver = {
3248         .name = KBUILD_MODNAME,
3249         .id_table = snd_intel8x0_ids,
3250         .probe = snd_intel8x0_probe,
3251         .remove = snd_intel8x0_remove,
3252         .driver = {
3253                 .pm = INTEL8X0_PM_OPS,
3254         },
3255 };
3256 
3257 module_pci_driver(intel8x0_driver);
3258 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp