1 #ifndef __SOUND_AZT3328_H
2 #define __SOUND_AZT3328_H
4 /* "PU" == "power-up value", as tested on PCI168 PCI rev. 10
5 * "WRITE_ONLY" == register does not indicate actual bit values */
7 /*** main I/O area port indices ***/
8 /* (only 0x70 of 0x80 bytes saved/restored by Windows driver) */
9 #define AZF_IO_SIZE_CODEC 0x80
10 #define AZF_IO_SIZE_CODEC_PM 0x70
12 /* the driver initialisation suggests a layout of 4 main areas:
13 * from 0x00 (playback), from 0x20 (recording) and from 0x40 (maybe MPU401??).
14 * And another area from 0x60 to 0x6f (DirectX timer, IRQ management,
15 * power management etc.???). */
18 #define IDX_IO_PLAY_FLAGS 0x00 /* PU:0x0000 */
19 /* able to reactivate output after output muting due to 8/16bit
20 * output change, just like 0x0002.
21 * 0x0001 is the only bit that's able to start the DMA counter */
22 #define DMA_RESUME 0x0001 /* paused if cleared ? */
23 /* 0x0002 *temporarily* set during DMA stopping. hmm
24 * both 0x0002 and 0x0004 set in playback setup. */
25 /* able to reactivate output after output muting due to 8/16bit
26 * output change, just like 0x0001. */
27 #define DMA_PLAY_SOMETHING1 0x0002 /* \ alternated (toggled) */
28 /* 0x0004: NOT able to reactivate output */
29 #define DMA_PLAY_SOMETHING2 0x0004 /* / bits */
30 #define SOMETHING_ALMOST_ALWAYS_SET 0x0008 /* ???; can be modified */
31 #define DMA_EPILOGUE_SOMETHING 0x0010
32 #define DMA_SOMETHING_ELSE 0x0020 /* ??? */
33 #define SOMETHING_UNMODIFIABLE 0xffc0 /* unused ? not modifiable */
34 #define IDX_IO_PLAY_IRQTYPE 0x02 /* PU:0x0001 */
35 /* write back to flags in case flags are set, in order to ACK IRQ in handler
36 * (bit 1 of port 0x64 indicates interrupt for one of these three types)
37 * sometimes in this case it just writes 0xffff to globally ACK all IRQs
38 * settings written are not reflected when reading back, though.
39 * seems to be IRQ, too (frequently used: port |= 0x07 !), but who knows ? */
40 #define IRQ_PLAY_SOMETHING 0x0001 /* something & ACK */
41 #define IRQ_FINISHED_PLAYBUF_1 0x0002 /* 1st dmabuf finished & ACK */
42 #define IRQ_FINISHED_PLAYBUF_2 0x0004 /* 2nd dmabuf finished & ACK */
43 #define IRQMASK_SOME_STATUS_1 0x0008 /* \ related bits */
44 #define IRQMASK_SOME_STATUS_2 0x0010 /* / (checked together in loop) */
45 #define IRQMASK_UNMODIFIABLE 0xffe0 /* unused ? not modifiable */
46 #define IDX_IO_PLAY_DMA_START_1 0x04 /* start address of 1st DMA play area, PU:0x00000000 */
47 #define IDX_IO_PLAY_DMA_START_2 0x08 /* start address of 2nd DMA play area, PU:0x00000000 */
48 #define IDX_IO_PLAY_DMA_LEN_1 0x0c /* length of 1st DMA play area, PU:0x0000 */
49 #define IDX_IO_PLAY_DMA_LEN_2 0x0e /* length of 2nd DMA play area, PU:0x0000 */
50 #define IDX_IO_PLAY_DMA_CURRPOS 0x10 /* current DMA position, PU:0x00000000 */
51 #define IDX_IO_PLAY_DMA_CURROFS 0x14 /* offset within current DMA play area, PU:0x0000 */
52 #define IDX_IO_PLAY_SOUNDFORMAT 0x16 /* PU:0x0010 */
53 /* all unspecified bits can't be modified */
54 #define SOUNDFORMAT_FREQUENCY_MASK 0x000f
55 #define SOUNDFORMAT_XTAL1 0x00
56 #define SOUNDFORMAT_XTAL2 0x01
57 /* all _SUSPECTED_ values are not used by Windows drivers, so we don't
58 * have any hard facts, only rough measurements.
59 * All we know is that the crystal used on the board has 24.576MHz,
60 * like many soundcards (which results in the frequencies below when
61 * using certain divider values selected by the values below) */
62 #define SOUNDFORMAT_FREQ_SUSPECTED_4000 0x0c | SOUNDFORMAT_XTAL1
63 #define SOUNDFORMAT_FREQ_SUSPECTED_4800 0x0a | SOUNDFORMAT_XTAL1
64 #define SOUNDFORMAT_FREQ_5510 0x0c | SOUNDFORMAT_XTAL2
65 #define SOUNDFORMAT_FREQ_6620 0x0a | SOUNDFORMAT_XTAL2
66 #define SOUNDFORMAT_FREQ_8000 0x00 | SOUNDFORMAT_XTAL1 /* also 0x0e | SOUNDFORMAT_XTAL1? */
67 #define SOUNDFORMAT_FREQ_9600 0x08 | SOUNDFORMAT_XTAL1
68 #define SOUNDFORMAT_FREQ_11025 0x00 | SOUNDFORMAT_XTAL2 /* also 0x0e | SOUNDFORMAT_XTAL2? */
69 #define SOUNDFORMAT_FREQ_SUSPECTED_13240 0x08 | SOUNDFORMAT_XTAL2 /* seems to be 6620 *2 */
70 #define SOUNDFORMAT_FREQ_16000 0x02 | SOUNDFORMAT_XTAL1
71 #define SOUNDFORMAT_FREQ_22050 0x02 | SOUNDFORMAT_XTAL2
72 #define SOUNDFORMAT_FREQ_32000 0x04 | SOUNDFORMAT_XTAL1
73 #define SOUNDFORMAT_FREQ_44100 0x04 | SOUNDFORMAT_XTAL2
74 #define SOUNDFORMAT_FREQ_48000 0x06 | SOUNDFORMAT_XTAL1
75 #define SOUNDFORMAT_FREQ_SUSPECTED_66200 0x06 | SOUNDFORMAT_XTAL2 /* 66200 (13240 * 5); 64000 may have been nicer :-\ */
76 #define SOUNDFORMAT_FLAG_16BIT 0x0010
77 #define SOUNDFORMAT_FLAG_2CHANNELS 0x0020
79 /* define frequency helpers, for maximum value safety */
81 #define AZF_FREQ(rate) AZF_FREQ_##rate = rate
99 /** recording area (see also: playback bit flag definitions) **/
100 #define IDX_IO_REC_FLAGS 0x20 /* ??, PU:0x0000 */
101 #define IDX_IO_REC_IRQTYPE 0x22 /* ??, PU:0x0000 */
102 #define IRQ_REC_SOMETHING 0x0001 /* something & ACK */
103 #define IRQ_FINISHED_RECBUF_1 0x0002 /* 1st dmabuf finished & ACK */
104 #define IRQ_FINISHED_RECBUF_2 0x0004 /* 2nd dmabuf finished & ACK */
105 /* hmm, maybe these are just the corresponding *recording* flags ?
106 * but OTOH they are most likely at port 0x22 instead */
107 #define IRQMASK_SOME_STATUS_1 0x0008 /* \ related bits */
108 #define IRQMASK_SOME_STATUS_2 0x0010 /* / (checked together in loop) */
109 #define IDX_IO_REC_DMA_START_1 0x24 /* PU:0x00000000 */
110 #define IDX_IO_REC_DMA_START_2 0x28 /* PU:0x00000000 */
111 #define IDX_IO_REC_DMA_LEN_1 0x2c /* PU:0x0000 */
112 #define IDX_IO_REC_DMA_LEN_2 0x2e /* PU:0x0000 */
113 #define IDX_IO_REC_DMA_CURRPOS 0x30 /* PU:0x00000000 */
114 #define IDX_IO_REC_DMA_CURROFS 0x34 /* PU:0x00000000 */
115 #define IDX_IO_REC_SOUNDFORMAT 0x36 /* PU:0x0000 */
117 /** hmm, what is this I/O area for? MPU401?? or external DAC via I2S?? (after playback, recording, ???, timer) **/
118 #define IDX_IO_SOMETHING_FLAGS 0x40 /* gets set to 0x34 just like port 0x0 and 0x20 on card init, PU:0x0000 */
120 #define IDX_IO_42H 0x42 /* PU:0x0001 */
122 /** DirectX timer, main interrupt area (FIXME: and something else?) **/
123 #define IDX_IO_TIMER_VALUE 0x60 /* found this timer area by pure luck :-) */
124 /* timer countdown value; triggers IRQ when timer is finished */
125 #define TIMER_VALUE_MASK 0x000fffffUL
126 /* activate timer countdown */
127 #define TIMER_COUNTDOWN_ENABLE 0x01000000UL
128 /* trigger timer IRQ on zero transition */
129 #define TIMER_IRQ_ENABLE 0x02000000UL
130 /* being set in IRQ handler in case port 0x00 (hmm, not port 0x64!?!?)
131 * had 0x0020 set upon IRQ handler */
132 #define TIMER_IRQ_ACK 0x04000000UL
133 #define IDX_IO_IRQSTATUS 0x64
134 /* some IRQ bit in here might also be used to signal a power-management timer
135 * timeout, to request shutdown of the chip (e.g. AD1815JS has such a thing).
136 * Some OPL3 hardware (e.g. in LM4560) has some special timer hardware which
137 * can trigger an OPL3 timer IRQ, so maybe there's such a thing as well... */
139 #define IRQ_PLAYBACK 0x0001
140 #define IRQ_RECORDING 0x0002
141 #define IRQ_UNKNOWN1 0x0004 /* most probably I2S port */
142 #define IRQ_GAMEPORT 0x0008 /* Interrupt of Digital(ly) Enhanced Game Port */
143 #define IRQ_MPU401 0x0010
144 #define IRQ_TIMER 0x0020 /* DirectX timer */
145 #define IRQ_UNKNOWN2 0x0040 /* probably unused, or possibly I2S port? */
146 #define IRQ_UNKNOWN3 0x0080 /* probably unused, or possibly I2S port? */
147 #define IDX_IO_66H 0x66 /* writing 0xffff returns 0x0000 */
148 /* this is set to e.g. 0x3ff or 0x300, and writable;
149 * maybe some buffer limit, but I couldn't find out more, PU:0x00ff: */
150 #define IDX_IO_SOME_VALUE 0x68
151 #define IO_68_RANDOM_TOGGLE1 0x0100 /* toggles randomly */
152 #define IO_68_RANDOM_TOGGLE2 0x0200 /* toggles randomly */
153 /* umm, nope, behaviour of these bits changes depending on what we wrote
155 * And they change upon playback/stop, too:
156 * Writing a value to 0x68 will display this exact value during playback,
157 * too but when stopped it can fall back to a rather different
158 * seemingly random value). Hmm, possibly this is a register which
159 * has a remote shadow which needs proper device supply which only exists
160 * in case playback is active? Or is this driver-induced?
163 /* this WORD can be set to have bits 0x0028 activated (FIXME: correct??);
164 * actually inhibits PCM playback!!! maybe power management??: */
165 #define IDX_IO_6AH 0x6A /* WRITE_ONLY! */
166 /* bit 5: enabling this will activate permanent counting of bytes 2/3
167 * at gameport I/O (0xb402/3) (equal values each) and cause
168 * gameport legacy I/O at 0x0200 to be _DISABLED_!
169 * Is this Digital Enhanced Game Port Enable??? Or maybe it's Testmode
170 * for Enhanced Digital Gameport (see 4D Wave DX card): */
171 #define IO_6A_SOMETHING1_GAMEPORT 0x0020
172 /* bit 8; sure, this _pauses_ playback (later resumes at same spot!),
173 * but what the heck is this really about??: */
174 #define IO_6A_PAUSE_PLAYBACK_BIT8 0x0100
175 /* bit 9; sure, this _pauses_ playback (later resumes at same spot!),
176 * but what the heck is this really about??: */
177 #define IO_6A_PAUSE_PLAYBACK_BIT9 0x0200
178 /* BIT8 and BIT9 are _NOT_ able to affect OPL3 MIDI playback,
179 * thus it suggests influence on PCM only!!
180 * However OTOH there seems to be no bit anywhere around here
181 * which is able to disable OPL3... */
182 /* bit 10: enabling this actually changes values at legacy gameport
183 * I/O address (0x200); is this enabling of the Digital Enhanced Game Port???
184 * Or maybe this simply switches off the NE558 circuit, since enabling this
185 * still lets us evaluate button states, but not axis states */
186 #define IO_6A_SOMETHING2_GAMEPORT 0x0400
187 /* writing 0x0300: causes quite some crackling during
188 * PC activity such as switching windows (PCI traffic??
189 * --> FIFO/timing settings???) */
190 /* writing 0x0100 plus/or 0x0200 inhibits playback */
191 /* since the Windows .INF file has Flag_Enable_JoyStick and
192 * Flag_Enable_SB_DOS_Emulation directly together, it stands to reason
193 * that some other bit in this same register might be responsible
194 * for SB DOS Emulation activation (note that the file did NOT define
195 * a switch for OPL3!) */
196 #define IDX_IO_6CH 0x6C /* unknown; fully read-writable */
197 #define IDX_IO_6EH 0x6E
198 /* writing 0xffff returns 0x83fe (or 0x03fe only).
199 * writing 0x83 (and only 0x83!!) to 0x6f will cause 0x6c to switch
200 * from 0000 to ffff. */
202 /* further I/O indices not saved/restored and not readable after writing,
203 * so probably not used */
206 /*** Gameport area port indices ***/
207 /* (only 0x06 of 0x08 bytes saved/restored by Windows driver) */
208 #define AZF_IO_SIZE_GAME 0x08
209 #define AZF_IO_SIZE_GAME_PM 0x06
212 AZF_GAME_LEGACY_IO_PORT = 0x200
215 #define IDX_GAME_LEGACY_COMPATIBLE 0x00
216 /* in some operation mode, writing anything to this port
217 * triggers an interrupt:
218 * yup, that's in case IDX_GAME_01H has one of the
219 * axis measurement bits enabled
220 * (and of course one needs to have GAME_HWCFG_IRQ_ENABLE, too) */
222 #define IDX_GAME_AXES_CONFIG 0x01
223 /* NOTE: layout of this register awfully similar (read: "identical??")
224 * to AD1815JS.pdf (p.29) */
226 /* enables axis 1 (X axis) measurement: */
227 #define GAME_AXES_ENABLE_1 0x01
228 /* enables axis 2 (Y axis) measurement: */
229 #define GAME_AXES_ENABLE_2 0x02
230 /* enables axis 3 (X axis) measurement: */
231 #define GAME_AXES_ENABLE_3 0x04
232 /* enables axis 4 (Y axis) measurement: */
233 #define GAME_AXES_ENABLE_4 0x08
234 /* selects the current axis to read the measured value of
235 * (at IDX_GAME_AXIS_VALUE):
236 * 00 = axis 1, 01 = axis 2, 10 = axis 3, 11 = axis 4: */
237 #define GAME_AXES_READ_MASK 0x30
238 /* enable to have the latch continuously accept ADC values
239 * (and continuously cause interrupts in case interrupts are enabled);
240 * AD1815JS.pdf says it's ~16ms interval there: */
241 #define GAME_AXES_LATCH_ENABLE 0x40
242 /* joystick data (measured axes) ready for reading: */
243 #define GAME_AXES_SAMPLING_READY 0x80
245 /* NOTE: other card specs (SiS960 and others!) state that the
246 * game position latches should be frozen when reading and be freed
247 * (== reset?) after reading!!!
248 * Freezing most likely means disabling 0x40 (GAME_AXES_LATCH_ENABLE),
249 * but how to free the value? */
250 /* An internet search for "gameport latch ADC" should provide some insight
251 * into how to program such a gameport system. */
253 /* writing 0xf0 to 01H once reset both counters to 0, in some special mode!?
254 * yup, in case 6AH 0x20 is not enabled
255 * (and 0x40 is sufficient, 0xf0 is not needed) */
257 #define IDX_GAME_AXIS_VALUE 0x02
258 /* R: value of currently configured axis (word value!);
259 * W: trigger axis measurement */
261 #define IDX_GAME_HWCONFIG 0x04
262 /* note: bits 4 to 7 are never set (== 0) when reading!
263 * --> reserved bits? */
264 /* enables IRQ notification upon axes measurement ready: */
265 #define GAME_HWCFG_IRQ_ENABLE 0x01
266 /* these bits choose a different frequency for the
267 * internal ADC counter increment.
268 * hmm, seems to be a combo of bits:
269 * 00 --> standard frequency
273 #define GAME_HWCFG_ADC_COUNTER_FREQ_MASK 0x06
275 /* enable gameport legacy I/O address (0x200)
276 * I was unable to locate any configurability for a different address: */
277 #define GAME_HWCFG_LEGACY_ADDRESS_ENABLE 0x08
280 #define AZF_IO_SIZE_MPU 0x04
281 #define AZF_IO_SIZE_MPU_PM 0x04
284 #define AZF_IO_SIZE_OPL3 0x08
285 #define AZF_IO_SIZE_OPL3_PM 0x06
286 /* hmm, given that a standard OPL3 has 4 registers only,
287 * there might be some enhanced functionality lurking at the end
288 * (especially since register 0x04 has a "non-empty" value 0xfe) */
290 /*** mixer I/O area port indices ***/
291 /* (only 0x22 of 0x40 bytes saved/restored by Windows driver)
292 * UNFORTUNATELY azf3328 is NOT truly AC97 compliant: see main file intro */
293 #define AZF_IO_SIZE_MIXER 0x40
294 #define AZF_IO_SIZE_MIXER_PM 0x22
296 #define MIXER_VOLUME_RIGHT_MASK 0x001f
297 #define MIXER_VOLUME_LEFT_MASK 0x1f00
298 #define MIXER_MUTE_MASK 0x8000
299 #define IDX_MIXER_RESET 0x00 /* does NOT seem to have AC97 ID bits */
300 #define IDX_MIXER_PLAY_MASTER 0x02
301 #define IDX_MIXER_MODEMOUT 0x04
302 #define IDX_MIXER_BASSTREBLE 0x06
303 #define MIXER_BASSTREBLE_TREBLE_VOLUME_MASK 0x000e
304 #define MIXER_BASSTREBLE_BASS_VOLUME_MASK 0x0e00
305 #define IDX_MIXER_PCBEEP 0x08
306 #define IDX_MIXER_MODEMIN 0x0a
307 #define IDX_MIXER_MIC 0x0c
308 #define MIXER_MIC_MICGAIN_20DB_ENHANCEMENT_MASK 0x0040
309 #define IDX_MIXER_LINEIN 0x0e
310 #define IDX_MIXER_CDAUDIO 0x10
311 #define IDX_MIXER_VIDEO 0x12
312 #define IDX_MIXER_AUX 0x14
313 #define IDX_MIXER_WAVEOUT 0x16
314 #define IDX_MIXER_FMSYNTH 0x18
315 #define IDX_MIXER_REC_SELECT 0x1a
316 #define MIXER_REC_SELECT_MIC 0x00
317 #define MIXER_REC_SELECT_CD 0x01
318 #define MIXER_REC_SELECT_VIDEO 0x02
319 #define MIXER_REC_SELECT_AUX 0x03
320 #define MIXER_REC_SELECT_LINEIN 0x04
321 #define MIXER_REC_SELECT_MIXSTEREO 0x05
322 #define MIXER_REC_SELECT_MIXMONO 0x06
323 #define MIXER_REC_SELECT_MONOIN 0x07
324 #define IDX_MIXER_REC_VOLUME 0x1c
325 #define IDX_MIXER_ADVCTL1 0x1e
326 /* unlisted bits are unmodifiable */
327 #define MIXER_ADVCTL1_3DWIDTH_MASK 0x000e
328 #define MIXER_ADVCTL1_HIFI3D_MASK 0x0300 /* yup, this is missing the high bit that official AC97 contains, plus it doesn't have linear bit value range behaviour but instead acts weirdly (possibly we're dealing with two *different* 3D settings here??) */
329 #define IDX_MIXER_ADVCTL2 0x20 /* subset of AC97_GENERAL_PURPOSE reg! */
330 /* unlisted bits are unmodifiable */
331 #define MIXER_ADVCTL2_LPBK 0x0080 /* Loopback mode -- Win driver: "WaveOut3DBypass"? mutes WaveOut at LineOut */
332 #define MIXER_ADVCTL2_MS 0x0100 /* Mic Select 0=Mic1, 1=Mic2 -- Win driver: "ModemOutSelect"?? */
333 #define MIXER_ADVCTL2_MIX 0x0200 /* Mono output select 0=Mix, 1=Mic; Win driver: "MonoSelectSource"?? */
334 #define MIXER_ADVCTL2_3D 0x2000 /* 3D Enhancement 1=on */
335 #define MIXER_ADVCTL2_POP 0x8000 /* Pcm Out Path, 0=pre 3D, 1=post 3D */
337 #define IDX_MIXER_SOMETHING30H 0x30 /* used, but unknown??? */
339 /* driver internal flags */
340 #define SET_CHAN_LEFT 1
341 #define SET_CHAN_RIGHT 2
343 #endif /* __SOUND_AZT3328_H */