1/* SPDX-License-Identifier: GPL-2.0+
2 *
3 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
4 * Universal interface for Audio Codec '97
5 *
6 * For more details look to AC '97 component specification revision 2.1
7 * by Intel Corporation (http://developer.intel.com).
8 */
9
10#ifndef __SOUND_AC97_CODEC_H
11#define __SOUND_AC97_CODEC_H
12
13#include <linux/bitops.h>
14#include <linux/device.h>
15#include <linux/workqueue.h>
16#include <sound/ac97/regs.h>
17#include <sound/pcm.h>
18#include <sound/control.h>
19#include <sound/info.h>
20
21/* maximum number of devices on the AC97 bus */
22#define AC97_BUS_MAX_DEVICES 4
23
24/* specific - SigmaTel */
25#define AC97_SIGMATEL_OUTSEL 0x64 /* Output Select, STAC9758 */
26#define AC97_SIGMATEL_INSEL 0x66 /* Input Select, STAC9758 */
27#define AC97_SIGMATEL_IOMISC 0x68 /* STAC9758 */
28#define AC97_SIGMATEL_ANALOG 0x6c /* Analog Special */
29#define AC97_SIGMATEL_DAC2INVERT 0x6e
30#define AC97_SIGMATEL_BIAS1 0x70
31#define AC97_SIGMATEL_BIAS2 0x72
32#define AC97_SIGMATEL_VARIOUS 0x72 /* STAC9758 */
33#define AC97_SIGMATEL_MULTICHN 0x74 /* Multi-Channel programming */
34#define AC97_SIGMATEL_CIC1 0x76
35#define AC97_SIGMATEL_CIC2 0x78
36
37/* specific - Analog Devices */
38#define AC97_AD_TEST 0x5a /* test register */
39#define AC97_AD_TEST2 0x5c /* undocumented test register 2 */
40#define AC97_AD_HPFD_SHIFT 12 /* High Pass Filter Disable */
41#define AC97_AD_CODEC_CFG 0x70 /* codec configuration */
42#define AC97_AD_JACK_SPDIF 0x72 /* Jack Sense & S/PDIF */
43#define AC97_AD_SERIAL_CFG 0x74 /* Serial Configuration */
44#define AC97_AD_MISC 0x76 /* Misc Control Bits */
45#define AC97_AD_VREFD_SHIFT 2 /* V_REFOUT Disable (AD1888) */
46
47/* specific - Cirrus Logic */
48#define AC97_CSR_ACMODE 0x5e /* AC Mode Register */
49#define AC97_CSR_MISC_CRYSTAL 0x60 /* Misc Crystal Control */
50#define AC97_CSR_SPDIF 0x68 /* S/PDIF Register */
51#define AC97_CSR_SERIAL 0x6a /* Serial Port Control */
52#define AC97_CSR_SPECF_ADDR 0x6c /* Special Feature Address */
53#define AC97_CSR_SPECF_DATA 0x6e /* Special Feature Data */
54#define AC97_CSR_BDI_STATUS 0x7a /* BDI Status */
55
56/* specific - Conexant */
57#define AC97_CXR_AUDIO_MISC 0x5c
58#define AC97_CXR_SPDIFEN (1<<3)
59#define AC97_CXR_COPYRGT (1<<2)
60#define AC97_CXR_SPDIF_MASK (3<<0)
61#define AC97_CXR_SPDIF_PCM 0x0
62#define AC97_CXR_SPDIF_AC3 0x2
63
64/* specific - ALC */
65#define AC97_ALC650_SPDIF_INPUT_STATUS1 0x60
66/* S/PDIF input status 1 bit defines */
67#define AC97_ALC650_PRO 0x0001 /* Professional status */
68#define AC97_ALC650_NAUDIO 0x0002 /* Non audio stream */
69#define AC97_ALC650_COPY 0x0004 /* Copyright status */
70#define AC97_ALC650_PRE 0x0038 /* Preemphasis status */
71#define AC97_ALC650_PRE_SHIFT 3
72#define AC97_ALC650_MODE 0x00C0 /* Preemphasis status */
73#define AC97_ALC650_MODE_SHIFT 6
74#define AC97_ALC650_CC_MASK 0x7f00 /* Category Code mask */
75#define AC97_ALC650_CC_SHIFT 8
76#define AC97_ALC650_L 0x8000 /* Generation Level status */
77
78#define AC97_ALC650_SPDIF_INPUT_STATUS2 0x62
79/* S/PDIF input status 2 bit defines */
80#define AC97_ALC650_SOUCE_MASK 0x000f /* Source number */
81#define AC97_ALC650_CHANNEL_MASK 0x00f0 /* Channel number */
82#define AC97_ALC650_CHANNEL_SHIFT 4
83#define AC97_ALC650_SPSR_MASK 0x0f00 /* S/PDIF Sample Rate bits */
84#define AC97_ALC650_SPSR_SHIFT 8
85#define AC97_ALC650_SPSR_44K 0x0000 /* Use 44.1kHz Sample rate */
86#define AC97_ALC650_SPSR_48K 0x0200 /* Use 48kHz Sample rate */
87#define AC97_ALC650_SPSR_32K 0x0300 /* Use 32kHz Sample rate */
88#define AC97_ALC650_CLOCK_ACCURACY 0x3000 /* Clock accuracy */
89#define AC97_ALC650_CLOCK_SHIFT 12
90#define AC97_ALC650_CLOCK_LOCK 0x4000 /* Clock locked status */
91#define AC97_ALC650_V 0x8000 /* Validity status */
92
93#define AC97_ALC650_SURR_DAC_VOL 0x64
94#define AC97_ALC650_LFE_DAC_VOL 0x66
95#define AC97_ALC650_UNKNOWN1 0x68
96#define AC97_ALC650_MULTICH 0x6a
97#define AC97_ALC650_UNKNOWN2 0x6c
98#define AC97_ALC650_REVISION 0x6e
99#define AC97_ALC650_UNKNOWN3 0x70
100#define AC97_ALC650_UNKNOWN4 0x72
101#define AC97_ALC650_MISC 0x74
102#define AC97_ALC650_GPIO_SETUP 0x76
103#define AC97_ALC650_GPIO_STATUS 0x78
104#define AC97_ALC650_CLOCK 0x7a
105
106/* specific - Yamaha YMF7x3 */
107#define AC97_YMF7X3_DIT_CTRL 0x66 /* DIT Control (YMF743) / 2 (YMF753) */
108#define AC97_YMF7X3_3D_MODE_SEL 0x68 /* 3D Mode Select */
109
110/* specific - C-Media */
111#define AC97_CM9738_VENDOR_CTRL 0x5a
112#define AC97_CM9739_MULTI_CHAN 0x64
113#define AC97_CM9739_SPDIF_IN_STATUS 0x68 /* 32bit */
114#define AC97_CM9739_SPDIF_CTRL 0x6c
115
116/* specific - wolfson */
117#define AC97_WM97XX_FMIXER_VOL 0x72
118#define AC97_WM9704_RMIXER_VOL 0x74
119#define AC97_WM9704_TEST 0x5a
120#define AC97_WM9704_RPCM_VOL 0x70
121#define AC97_WM9711_OUT3VOL 0x16
122
123
124/* ac97->scaps */
125#define AC97_SCAP_AUDIO (1<<0) /* audio codec 97 */
126#define AC97_SCAP_MODEM (1<<1) /* modem codec 97 */
127#define AC97_SCAP_SURROUND_DAC (1<<2) /* surround L&R DACs are present */
128#define AC97_SCAP_CENTER_LFE_DAC (1<<3) /* center and LFE DACs are present */
129#define AC97_SCAP_SKIP_AUDIO (1<<4) /* skip audio part of codec */
130#define AC97_SCAP_SKIP_MODEM (1<<5) /* skip modem part of codec */
131#define AC97_SCAP_INDEP_SDIN (1<<6) /* independent SDIN */
132#define AC97_SCAP_INV_EAPD (1<<7) /* inverted EAPD */
133#define AC97_SCAP_DETECT_BY_VENDOR (1<<8) /* use vendor registers for read tests */
134#define AC97_SCAP_NO_SPDIF (1<<9) /* don't build SPDIF controls */
135#define AC97_SCAP_EAPD_LED (1<<10) /* EAPD as mute LED */
136#define AC97_SCAP_POWER_SAVE (1<<11) /* capable for aggressive power-saving */
137
138/* ac97->flags */
139#define AC97_HAS_PC_BEEP (1<<0) /* force PC Speaker usage */
140#define AC97_AD_MULTI (1<<1) /* Analog Devices - multi codecs */
141#define AC97_CS_SPDIF (1<<2) /* Cirrus Logic uses funky SPDIF */
142#define AC97_CX_SPDIF (1<<3) /* Conexant's spdif interface */
143#define AC97_STEREO_MUTES (1<<4) /* has stereo mute bits */
144#define AC97_DOUBLE_RATE (1<<5) /* supports double rate playback */
145#define AC97_HAS_NO_MASTER_VOL (1<<6) /* no Master volume */
146#define AC97_HAS_NO_PCM_VOL (1<<7) /* no PCM volume */
147#define AC97_DEFAULT_POWER_OFF (1<<8) /* no RESET write */
148#define AC97_MODEM_PATCH (1<<9) /* modem patch */
149#define AC97_HAS_NO_REC_GAIN (1<<10) /* no Record gain */
150#define AC97_HAS_NO_PHONE (1<<11) /* no PHONE volume */
151#define AC97_HAS_NO_PC_BEEP (1<<12) /* no PC Beep volume */
152#define AC97_HAS_NO_VIDEO (1<<13) /* no Video volume */
153#define AC97_HAS_NO_CD (1<<14) /* no CD volume */
154#define AC97_HAS_NO_MIC (1<<15) /* no MIC volume */
155#define AC97_HAS_NO_TONE (1<<16) /* no Tone volume */
156#define AC97_HAS_NO_STD_PCM (1<<17) /* no standard AC97 PCM volume and mute */
157#define AC97_HAS_NO_AUX (1<<18) /* no standard AC97 AUX volume and mute */
158#define AC97_HAS_8CH (1<<19) /* supports 8-channel output */
159
160/* rates indexes */
161#define AC97_RATES_FRONT_DAC 0
162#define AC97_RATES_SURR_DAC 1
163#define AC97_RATES_LFE_DAC 2
164#define AC97_RATES_ADC 3
165#define AC97_RATES_MIC_ADC 4
166#define AC97_RATES_SPDIF 5
167
168#define AC97_NUM_GPIOS 16
169/*
170 *
171 */
172
173struct snd_ac97;
174struct snd_ac97_gpio_priv;
175struct snd_pcm_chmap;
176
177struct snd_ac97_build_ops {
178 int (*build_3d) (struct snd_ac97 *ac97);
179 int (*build_specific) (struct snd_ac97 *ac97);
180 int (*build_spdif) (struct snd_ac97 *ac97);
181 int (*build_post_spdif) (struct snd_ac97 *ac97);
182#ifdef CONFIG_PM
183 void (*suspend) (struct snd_ac97 *ac97);
184 void (*resume) (struct snd_ac97 *ac97);
185#endif
186 void (*update_jacks) (struct snd_ac97 *ac97); /* for jack-sharing */
187};
188
189struct snd_ac97_bus_ops {
190 void (*reset) (struct snd_ac97 *ac97);
191 void (*warm_reset)(struct snd_ac97 *ac97);
192 void (*write) (struct snd_ac97 *ac97, unsigned short reg, unsigned short val);
193 unsigned short (*read) (struct snd_ac97 *ac97, unsigned short reg);
194 void (*wait) (struct snd_ac97 *ac97);
195 void (*init) (struct snd_ac97 *ac97);
196};
197
198struct snd_ac97_bus {
199 /* -- lowlevel (hardware) driver specific -- */
200 const struct snd_ac97_bus_ops *ops;
201 void *private_data;
202 void (*private_free) (struct snd_ac97_bus *bus);
203 /* --- */
204 struct snd_card *card;
205 unsigned short num; /* bus number */
206 unsigned short no_vra: 1, /* bridge doesn't support VRA */
207 dra: 1, /* bridge supports double rate */
208 isdin: 1;/* independent SDIN */
209 unsigned int clock; /* AC'97 base clock (usually 48000Hz) */
210 spinlock_t bus_lock; /* used mainly for slot allocation */
211 unsigned short used_slots[2][4]; /* actually used PCM slots */
212 unsigned short pcms_count; /* count of PCMs */
213 struct ac97_pcm *pcms;
214 struct snd_ac97 *codec[4];
215 struct snd_info_entry *proc;
216};
217
218/* static resolution table */
219struct snd_ac97_res_table {
220 unsigned short reg; /* register */
221 unsigned short bits; /* resolution bitmask */
222};
223
224struct snd_ac97_template {
225 void *private_data;
226 void (*private_free) (struct snd_ac97 *ac97);
227 struct pci_dev *pci; /* assigned PCI device - used for quirks */
228 unsigned short num; /* number of codec: 0 = primary, 1 = secondary */
229 unsigned short addr; /* physical address of codec [0-3] */
230 unsigned int scaps; /* driver capabilities */
231 const struct snd_ac97_res_table *res_table; /* static resolution */
232};
233
234struct snd_ac97 {
235 /* -- lowlevel (hardware) driver specific -- */
236 const struct snd_ac97_build_ops *build_ops;
237 void *private_data;
238 void (*private_free) (struct snd_ac97 *ac97);
239 /* --- */
240 struct snd_ac97_bus *bus;
241 struct pci_dev *pci; /* assigned PCI device - used for quirks */
242 struct snd_info_entry *proc;
243 struct snd_info_entry *proc_regs;
244 unsigned short subsystem_vendor;
245 unsigned short subsystem_device;
246 struct mutex reg_mutex;
247 struct mutex page_mutex; /* mutex for AD18xx multi-codecs and paging (2.3) */
248 unsigned short num; /* number of codec: 0 = primary, 1 = secondary */
249 unsigned short addr; /* physical address of codec [0-3] */
250 unsigned int id; /* identification of codec */
251 unsigned short caps; /* capabilities (register 0) */
252 unsigned short ext_id; /* extended feature identification (register 28) */
253 unsigned short ext_mid; /* extended modem ID (register 3C) */
254 const struct snd_ac97_res_table *res_table; /* static resolution */
255 unsigned int scaps; /* driver capabilities */
256 unsigned int flags; /* specific code */
257 unsigned int rates[6]; /* see AC97_RATES_* defines */
258 unsigned int spdif_status;
259 unsigned short regs[0x80]; /* register cache */
260 DECLARE_BITMAP(reg_accessed, 0x80); /* bit flags */
261 union { /* vendor specific code */
262 struct {
263 unsigned short unchained[3]; // 0 = C34, 1 = C79, 2 = C69
264 unsigned short chained[3]; // 0 = C34, 1 = C79, 2 = C69
265 unsigned short id[3]; // codec IDs (lower 16-bit word)
266 unsigned short pcmreg[3]; // PCM registers
267 unsigned short codec_cfg[3]; // CODEC_CFG bits
268 unsigned char swap_mic_linein; // AD1986/AD1986A only
269 unsigned char lo_as_master; /* LO as master */
270 } ad18xx;
271 unsigned int dev_flags; /* device specific */
272 } spec;
273 /* jack-sharing info */
274 unsigned char indep_surround;
275 unsigned char channel_mode;
276
277#ifdef CONFIG_SND_AC97_POWER_SAVE
278 unsigned int power_up; /* power states */
279 struct delayed_work power_work;
280#endif
281 struct device dev;
282 struct snd_ac97_gpio_priv *gpio_priv;
283
284 struct snd_pcm_chmap *chmaps[2]; /* channel-maps (optional) */
285};
286
287#define to_ac97_t(d) container_of(d, struct snd_ac97, dev)
288
289/* conditions */
290static inline int ac97_is_audio(struct snd_ac97 * ac97)
291{
292 return (ac97->scaps & AC97_SCAP_AUDIO);
293}
294static inline int ac97_is_modem(struct snd_ac97 * ac97)
295{
296 return (ac97->scaps & AC97_SCAP_MODEM);
297}
298static inline int ac97_is_rev22(struct snd_ac97 * ac97)
299{
300 return (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_22;
301}
302static inline int ac97_can_amap(struct snd_ac97 * ac97)
303{
304 return (ac97->ext_id & AC97_EI_AMAP) != 0;
305}
306static inline int ac97_can_spdif(struct snd_ac97 * ac97)
307{
308 return (ac97->ext_id & AC97_EI_SPDIF) != 0;
309}
310
311/* functions */
312/* create new AC97 bus */
313int snd_ac97_bus(struct snd_card *card, int num,
314 const struct snd_ac97_bus_ops *ops,
315 void *private_data, struct snd_ac97_bus **rbus);
316/* create mixer controls */
317int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template,
318 struct snd_ac97 **rac97);
319const char *snd_ac97_get_short_name(struct snd_ac97 *ac97);
320
321void snd_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short value);
322unsigned short snd_ac97_read(struct snd_ac97 *ac97, unsigned short reg);
323void snd_ac97_write_cache(struct snd_ac97 *ac97, unsigned short reg, unsigned short value);
324int snd_ac97_update(struct snd_ac97 *ac97, unsigned short reg, unsigned short value);
325int snd_ac97_update_bits(struct snd_ac97 *ac97, unsigned short reg, unsigned short mask, unsigned short value);
326#ifdef CONFIG_SND_AC97_POWER_SAVE
327int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup);
328#else
329static inline int snd_ac97_update_power(struct snd_ac97 *ac97, int reg,
330 int powerup)
331{
332 return 0;
333}
334#endif
335#ifdef CONFIG_PM
336void snd_ac97_suspend(struct snd_ac97 *ac97);
337void snd_ac97_resume(struct snd_ac97 *ac97);
338#else
339static inline void snd_ac97_suspend(struct snd_ac97 *ac97) {}
340static inline void snd_ac97_resume(struct snd_ac97 *ac97) {}
341#endif
342int snd_ac97_reset(struct snd_ac97 *ac97, bool try_warm, unsigned int id,
343 unsigned int id_mask);
344
345/* quirk types */
346enum {
347 AC97_TUNE_DEFAULT = -1, /* use default from quirk list (not valid in list) */
348 AC97_TUNE_NONE = 0, /* nothing extra to do */
349 AC97_TUNE_HP_ONLY, /* headphone (true line-out) control as master only */
350 AC97_TUNE_SWAP_HP, /* swap headphone and master controls */
351 AC97_TUNE_SWAP_SURROUND, /* swap master and surround controls */
352 AC97_TUNE_AD_SHARING, /* for AD1985, turn on OMS bit and use headphone */
353 AC97_TUNE_ALC_JACK, /* for Realtek, enable JACK detection */
354 AC97_TUNE_INV_EAPD, /* inverted EAPD implementation */
355 AC97_TUNE_MUTE_LED, /* EAPD bit works as mute LED */
356 AC97_TUNE_HP_MUTE_LED, /* EAPD bit works as mute LED, use headphone control as master */
357};
358
359struct ac97_quirk {
360 unsigned short subvendor; /* PCI subsystem vendor id */
361 unsigned short subdevice; /* PCI subsystem device id */
362 unsigned short mask; /* device id bit mask, 0 = accept all */
363 unsigned int codec_id; /* codec id (if any), 0 = accept all */
364 const char *name; /* name shown as info */
365 int type; /* quirk type above */
366};
367
368int snd_ac97_tune_hardware(struct snd_ac97 *ac97,
369 const struct ac97_quirk *quirk,
370 const char *override);
371int snd_ac97_set_rate(struct snd_ac97 *ac97, int reg, unsigned int rate);
372
373/*
374 * PCM allocation
375 */
376
377enum ac97_pcm_cfg {
378 AC97_PCM_CFG_FRONT = 2,
379 AC97_PCM_CFG_REAR = 10, /* alias surround */
380 AC97_PCM_CFG_LFE = 11, /* center + lfe */
381 AC97_PCM_CFG_40 = 4, /* front + rear */
382 AC97_PCM_CFG_51 = 6, /* front + rear + center/lfe */
383 AC97_PCM_CFG_SPDIF = 20
384};
385
386struct ac97_pcm {
387 struct snd_ac97_bus *bus;
388 unsigned int stream: 1, /* stream type: 1 = capture */
389 exclusive: 1, /* exclusive mode, don't override with other pcms */
390 copy_flag: 1, /* lowlevel driver must fill all entries */
391 spdif: 1; /* spdif pcm */
392 unsigned short aslots; /* active slots */
393 unsigned short cur_dbl; /* current double-rate state */
394 unsigned int rates; /* available rates */
395 struct {
396 unsigned short slots; /* driver input: requested AC97 slot numbers */
397 unsigned short rslots[4]; /* allocated slots per codecs */
398 unsigned char rate_table[4];
399 struct snd_ac97 *codec[4]; /* allocated codecs */
400 } r[2]; /* 0 = standard rates, 1 = double rates */
401 unsigned long private_value; /* used by the hardware driver */
402};
403
404int snd_ac97_pcm_assign(struct snd_ac97_bus *ac97,
405 unsigned short pcms_count,
406 const struct ac97_pcm *pcms);
407int snd_ac97_pcm_open(struct ac97_pcm *pcm, unsigned int rate,
408 enum ac97_pcm_cfg cfg, unsigned short slots);
409int snd_ac97_pcm_close(struct ac97_pcm *pcm);
410int snd_ac97_pcm_double_rate_rules(struct snd_pcm_runtime *runtime);
411
412/* ad hoc AC97 device driver access */
413extern const struct bus_type ac97_bus_type;
414
415/* AC97 platform_data adding function */
416static inline void snd_ac97_dev_add_pdata(struct snd_ac97 *ac97, void *data)
417{
418 ac97->dev.platform_data = data;
419}
420
421#endif /* __SOUND_AC97_CODEC_H */
422