xref: /linux/sound/pci/rme9652/hdsp.c (revision f30828a6745281edda735f642b5f814e1123ecd3)
1 /*
2  *   ALSA driver for RME Hammerfall DSP audio interface(s)
3  *
4  *      Copyright (c) 2002  Paul Davis
5  *                          Marcus Andersson
6  *                          Thomas Charbonnel
7  *
8  *   This program is free software; you can redistribute it and/or modify
9  *   it under the terms of the GNU General Public License as published by
10  *   the Free Software Foundation; either version 2 of the License, or
11  *   (at your option) any later version.
12  *
13  *   This program is distributed in the hope that it will be useful,
14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  *   GNU General Public License for more details.
17  *
18  *   You should have received a copy of the GNU General Public License
19  *   along with this program; if not, write to the Free Software
20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
21  *
22  */
23 
24 #include <linux/init.h>
25 #include <linux/delay.h>
26 #include <linux/interrupt.h>
27 #include <linux/slab.h>
28 #include <linux/pci.h>
29 #include <linux/firmware.h>
30 #include <linux/moduleparam.h>
31 
32 #include <sound/core.h>
33 #include <sound/control.h>
34 #include <sound/pcm.h>
35 #include <sound/info.h>
36 #include <sound/asoundef.h>
37 #include <sound/rawmidi.h>
38 #include <sound/hwdep.h>
39 #include <sound/initval.h>
40 #include <sound/hdsp.h>
41 
42 #include <asm/byteorder.h>
43 #include <asm/current.h>
44 #include <asm/io.h>
45 
46 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
47 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
48 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
49 
50 module_param_array(index, int, NULL, 0444);
51 MODULE_PARM_DESC(index, "Index value for RME Hammerfall DSP interface.");
52 module_param_array(id, charp, NULL, 0444);
53 MODULE_PARM_DESC(id, "ID string for RME Hammerfall DSP interface.");
54 module_param_array(enable, bool, NULL, 0444);
55 MODULE_PARM_DESC(enable, "Enable/disable specific Hammerfall DSP soundcards.");
56 MODULE_AUTHOR("Paul Davis <paul@linuxaudiosystems.com>, Marcus Andersson, Thomas Charbonnel <thomas@undata.org>");
57 MODULE_DESCRIPTION("RME Hammerfall DSP");
58 MODULE_LICENSE("GPL");
59 MODULE_SUPPORTED_DEVICE("{{RME Hammerfall-DSP},"
60 	        "{RME HDSP-9652},"
61 		"{RME HDSP-9632}}");
62 #ifdef HDSP_FW_LOADER
63 MODULE_FIRMWARE("multiface_firmware.bin");
64 MODULE_FIRMWARE("multiface_firmware_rev11.bin");
65 MODULE_FIRMWARE("digiface_firmware.bin");
66 MODULE_FIRMWARE("digiface_firmware_rev11.bin");
67 #endif
68 
69 #define HDSP_MAX_CHANNELS        26
70 #define HDSP_MAX_DS_CHANNELS     14
71 #define HDSP_MAX_QS_CHANNELS     8
72 #define DIGIFACE_SS_CHANNELS     26
73 #define DIGIFACE_DS_CHANNELS     14
74 #define MULTIFACE_SS_CHANNELS    18
75 #define MULTIFACE_DS_CHANNELS    14
76 #define H9652_SS_CHANNELS        26
77 #define H9652_DS_CHANNELS        14
78 /* This does not include possible Analog Extension Boards
79    AEBs are detected at card initialization
80 */
81 #define H9632_SS_CHANNELS	 12
82 #define H9632_DS_CHANNELS	 8
83 #define H9632_QS_CHANNELS	 4
84 
85 /* Write registers. These are defined as byte-offsets from the iobase value.
86  */
87 #define HDSP_resetPointer               0
88 #define HDSP_freqReg			0
89 #define HDSP_outputBufferAddress	32
90 #define HDSP_inputBufferAddress		36
91 #define HDSP_controlRegister		64
92 #define HDSP_interruptConfirmation	96
93 #define HDSP_outputEnable	  	128
94 #define HDSP_control2Reg		256
95 #define HDSP_midiDataOut0  		352
96 #define HDSP_midiDataOut1  		356
97 #define HDSP_fifoData  			368
98 #define HDSP_inputEnable	 	384
99 
100 /* Read registers. These are defined as byte-offsets from the iobase value
101  */
102 
103 #define HDSP_statusRegister    0
104 #define HDSP_timecode        128
105 #define HDSP_status2Register 192
106 #define HDSP_midiDataIn0     360
107 #define HDSP_midiDataIn1     364
108 #define HDSP_midiStatusOut0  384
109 #define HDSP_midiStatusOut1  388
110 #define HDSP_midiStatusIn0   392
111 #define HDSP_midiStatusIn1   396
112 #define HDSP_fifoStatus      400
113 
114 /* the meters are regular i/o-mapped registers, but offset
115    considerably from the rest. the peak registers are reset
116    when read; the least-significant 4 bits are full-scale counters;
117    the actual peak value is in the most-significant 24 bits.
118 */
119 
120 #define HDSP_playbackPeakLevel  4096  /* 26 * 32 bit values */
121 #define HDSP_inputPeakLevel     4224  /* 26 * 32 bit values */
122 #define HDSP_outputPeakLevel    4352  /* (26+2) * 32 bit values */
123 #define HDSP_playbackRmsLevel   4612  /* 26 * 64 bit values */
124 #define HDSP_inputRmsLevel      4868  /* 26 * 64 bit values */
125 
126 
127 /* This is for H9652 cards
128    Peak values are read downward from the base
129    Rms values are read upward
130    There are rms values for the outputs too
131    26*3 values are read in ss mode
132    14*3 in ds mode, with no gap between values
133 */
134 #define HDSP_9652_peakBase	7164
135 #define HDSP_9652_rmsBase	4096
136 
137 /* c.f. the hdsp_9632_meters_t struct */
138 #define HDSP_9632_metersBase	4096
139 
140 #define HDSP_IO_EXTENT     7168
141 
142 /* control2 register bits */
143 
144 #define HDSP_TMS                0x01
145 #define HDSP_TCK                0x02
146 #define HDSP_TDI                0x04
147 #define HDSP_JTAG               0x08
148 #define HDSP_PWDN               0x10
149 #define HDSP_PROGRAM	        0x020
150 #define HDSP_CONFIG_MODE_0	0x040
151 #define HDSP_CONFIG_MODE_1	0x080
152 #define HDSP_VERSION_BIT	0x100
153 #define HDSP_BIGENDIAN_MODE     0x200
154 #define HDSP_RD_MULTIPLE        0x400
155 #define HDSP_9652_ENABLE_MIXER  0x800
156 #define HDSP_TDO                0x10000000
157 
158 #define HDSP_S_PROGRAM     	(HDSP_PROGRAM|HDSP_CONFIG_MODE_0)
159 #define HDSP_S_LOAD		(HDSP_PROGRAM|HDSP_CONFIG_MODE_1)
160 
161 /* Control Register bits */
162 
163 #define HDSP_Start                (1<<0)  /* start engine */
164 #define HDSP_Latency0             (1<<1)  /* buffer size = 2^n where n is defined by Latency{2,1,0} */
165 #define HDSP_Latency1             (1<<2)  /* [ see above ] */
166 #define HDSP_Latency2             (1<<3)  /* [ see above ] */
167 #define HDSP_ClockModeMaster      (1<<4)  /* 1=Master, 0=Slave/Autosync */
168 #define HDSP_AudioInterruptEnable (1<<5)  /* what do you think ? */
169 #define HDSP_Frequency0           (1<<6)  /* 0=44.1kHz/88.2kHz/176.4kHz 1=48kHz/96kHz/192kHz */
170 #define HDSP_Frequency1           (1<<7)  /* 0=32kHz/64kHz/128kHz */
171 #define HDSP_DoubleSpeed          (1<<8)  /* 0=normal speed, 1=double speed */
172 #define HDSP_SPDIFProfessional    (1<<9)  /* 0=consumer, 1=professional */
173 #define HDSP_SPDIFEmphasis        (1<<10) /* 0=none, 1=on */
174 #define HDSP_SPDIFNonAudio        (1<<11) /* 0=off, 1=on */
175 #define HDSP_SPDIFOpticalOut      (1<<12) /* 1=use 1st ADAT connector for SPDIF, 0=do not */
176 #define HDSP_SyncRef2             (1<<13)
177 #define HDSP_SPDIFInputSelect0    (1<<14)
178 #define HDSP_SPDIFInputSelect1    (1<<15)
179 #define HDSP_SyncRef0             (1<<16)
180 #define HDSP_SyncRef1             (1<<17)
181 #define HDSP_AnalogExtensionBoard (1<<18) /* For H9632 cards */
182 #define HDSP_XLRBreakoutCable     (1<<20) /* For H9632 cards */
183 #define HDSP_Midi0InterruptEnable (1<<22)
184 #define HDSP_Midi1InterruptEnable (1<<23)
185 #define HDSP_LineOut              (1<<24)
186 #define HDSP_ADGain0		  (1<<25) /* From here : H9632 specific */
187 #define HDSP_ADGain1		  (1<<26)
188 #define HDSP_DAGain0		  (1<<27)
189 #define HDSP_DAGain1		  (1<<28)
190 #define HDSP_PhoneGain0		  (1<<29)
191 #define HDSP_PhoneGain1		  (1<<30)
192 #define HDSP_QuadSpeed	  	  (1<<31)
193 
194 #define HDSP_ADGainMask       (HDSP_ADGain0|HDSP_ADGain1)
195 #define HDSP_ADGainMinus10dBV  HDSP_ADGainMask
196 #define HDSP_ADGainPlus4dBu   (HDSP_ADGain0)
197 #define HDSP_ADGainLowGain     0
198 
199 #define HDSP_DAGainMask         (HDSP_DAGain0|HDSP_DAGain1)
200 #define HDSP_DAGainHighGain      HDSP_DAGainMask
201 #define HDSP_DAGainPlus4dBu     (HDSP_DAGain0)
202 #define HDSP_DAGainMinus10dBV    0
203 
204 #define HDSP_PhoneGainMask      (HDSP_PhoneGain0|HDSP_PhoneGain1)
205 #define HDSP_PhoneGain0dB        HDSP_PhoneGainMask
206 #define HDSP_PhoneGainMinus6dB  (HDSP_PhoneGain0)
207 #define HDSP_PhoneGainMinus12dB  0
208 
209 #define HDSP_LatencyMask    (HDSP_Latency0|HDSP_Latency1|HDSP_Latency2)
210 #define HDSP_FrequencyMask  (HDSP_Frequency0|HDSP_Frequency1|HDSP_DoubleSpeed|HDSP_QuadSpeed)
211 
212 #define HDSP_SPDIFInputMask    (HDSP_SPDIFInputSelect0|HDSP_SPDIFInputSelect1)
213 #define HDSP_SPDIFInputADAT1    0
214 #define HDSP_SPDIFInputCoaxial (HDSP_SPDIFInputSelect0)
215 #define HDSP_SPDIFInputCdrom   (HDSP_SPDIFInputSelect1)
216 #define HDSP_SPDIFInputAES     (HDSP_SPDIFInputSelect0|HDSP_SPDIFInputSelect1)
217 
218 #define HDSP_SyncRefMask        (HDSP_SyncRef0|HDSP_SyncRef1|HDSP_SyncRef2)
219 #define HDSP_SyncRef_ADAT1       0
220 #define HDSP_SyncRef_ADAT2      (HDSP_SyncRef0)
221 #define HDSP_SyncRef_ADAT3      (HDSP_SyncRef1)
222 #define HDSP_SyncRef_SPDIF      (HDSP_SyncRef0|HDSP_SyncRef1)
223 #define HDSP_SyncRef_WORD       (HDSP_SyncRef2)
224 #define HDSP_SyncRef_ADAT_SYNC  (HDSP_SyncRef0|HDSP_SyncRef2)
225 
226 /* Sample Clock Sources */
227 
228 #define HDSP_CLOCK_SOURCE_AUTOSYNC           0
229 #define HDSP_CLOCK_SOURCE_INTERNAL_32KHZ     1
230 #define HDSP_CLOCK_SOURCE_INTERNAL_44_1KHZ   2
231 #define HDSP_CLOCK_SOURCE_INTERNAL_48KHZ     3
232 #define HDSP_CLOCK_SOURCE_INTERNAL_64KHZ     4
233 #define HDSP_CLOCK_SOURCE_INTERNAL_88_2KHZ   5
234 #define HDSP_CLOCK_SOURCE_INTERNAL_96KHZ     6
235 #define HDSP_CLOCK_SOURCE_INTERNAL_128KHZ    7
236 #define HDSP_CLOCK_SOURCE_INTERNAL_176_4KHZ  8
237 #define HDSP_CLOCK_SOURCE_INTERNAL_192KHZ    9
238 
239 /* Preferred sync reference choices - used by "pref_sync_ref" control switch */
240 
241 #define HDSP_SYNC_FROM_WORD      0
242 #define HDSP_SYNC_FROM_SPDIF     1
243 #define HDSP_SYNC_FROM_ADAT1     2
244 #define HDSP_SYNC_FROM_ADAT_SYNC 3
245 #define HDSP_SYNC_FROM_ADAT2     4
246 #define HDSP_SYNC_FROM_ADAT3     5
247 
248 /* SyncCheck status */
249 
250 #define HDSP_SYNC_CHECK_NO_LOCK 0
251 #define HDSP_SYNC_CHECK_LOCK    1
252 #define HDSP_SYNC_CHECK_SYNC	2
253 
254 /* AutoSync references - used by "autosync_ref" control switch */
255 
256 #define HDSP_AUTOSYNC_FROM_WORD      0
257 #define HDSP_AUTOSYNC_FROM_ADAT_SYNC 1
258 #define HDSP_AUTOSYNC_FROM_SPDIF     2
259 #define HDSP_AUTOSYNC_FROM_NONE	     3
260 #define HDSP_AUTOSYNC_FROM_ADAT1     4
261 #define HDSP_AUTOSYNC_FROM_ADAT2     5
262 #define HDSP_AUTOSYNC_FROM_ADAT3     6
263 
264 /* Possible sources of S/PDIF input */
265 
266 #define HDSP_SPDIFIN_OPTICAL  0	/* optical  (ADAT1) */
267 #define HDSP_SPDIFIN_COAXIAL  1	/* coaxial (RCA) */
268 #define HDSP_SPDIFIN_INTERNAL 2	/* internal (CDROM) */
269 #define HDSP_SPDIFIN_AES      3 /* xlr for H9632 (AES)*/
270 
271 #define HDSP_Frequency32KHz    HDSP_Frequency0
272 #define HDSP_Frequency44_1KHz  HDSP_Frequency1
273 #define HDSP_Frequency48KHz    (HDSP_Frequency1|HDSP_Frequency0)
274 #define HDSP_Frequency64KHz    (HDSP_DoubleSpeed|HDSP_Frequency0)
275 #define HDSP_Frequency88_2KHz  (HDSP_DoubleSpeed|HDSP_Frequency1)
276 #define HDSP_Frequency96KHz    (HDSP_DoubleSpeed|HDSP_Frequency1|HDSP_Frequency0)
277 /* For H9632 cards */
278 #define HDSP_Frequency128KHz   (HDSP_QuadSpeed|HDSP_DoubleSpeed|HDSP_Frequency0)
279 #define HDSP_Frequency176_4KHz (HDSP_QuadSpeed|HDSP_DoubleSpeed|HDSP_Frequency1)
280 #define HDSP_Frequency192KHz   (HDSP_QuadSpeed|HDSP_DoubleSpeed|HDSP_Frequency1|HDSP_Frequency0)
281 /* RME says n = 104857600000000, but in the windows MADI driver, I see:
282 	return 104857600000000 / rate; // 100 MHz
283 	return 110100480000000 / rate; // 105 MHz
284 */
285 #define DDS_NUMERATOR 104857600000000ULL;  /*  =  2^20 * 10^8 */
286 
287 #define hdsp_encode_latency(x)       (((x)<<1) & HDSP_LatencyMask)
288 #define hdsp_decode_latency(x)       (((x) & HDSP_LatencyMask)>>1)
289 
290 #define hdsp_encode_spdif_in(x) (((x)&0x3)<<14)
291 #define hdsp_decode_spdif_in(x) (((x)>>14)&0x3)
292 
293 /* Status Register bits */
294 
295 #define HDSP_audioIRQPending    (1<<0)
296 #define HDSP_Lock2              (1<<1)     /* this is for Digiface and H9652 */
297 #define HDSP_spdifFrequency3	HDSP_Lock2 /* this is for H9632 only */
298 #define HDSP_Lock1              (1<<2)
299 #define HDSP_Lock0              (1<<3)
300 #define HDSP_SPDIFSync          (1<<4)
301 #define HDSP_TimecodeLock       (1<<5)
302 #define HDSP_BufferPositionMask 0x000FFC0 /* Bit 6..15 : h/w buffer pointer */
303 #define HDSP_Sync2              (1<<16)
304 #define HDSP_Sync1              (1<<17)
305 #define HDSP_Sync0              (1<<18)
306 #define HDSP_DoubleSpeedStatus  (1<<19)
307 #define HDSP_ConfigError        (1<<20)
308 #define HDSP_DllError           (1<<21)
309 #define HDSP_spdifFrequency0    (1<<22)
310 #define HDSP_spdifFrequency1    (1<<23)
311 #define HDSP_spdifFrequency2    (1<<24)
312 #define HDSP_SPDIFErrorFlag     (1<<25)
313 #define HDSP_BufferID           (1<<26)
314 #define HDSP_TimecodeSync       (1<<27)
315 #define HDSP_AEBO          	(1<<28) /* H9632 specific Analog Extension Boards */
316 #define HDSP_AEBI		(1<<29) /* 0 = present, 1 = absent */
317 #define HDSP_midi0IRQPending    (1<<30)
318 #define HDSP_midi1IRQPending    (1<<31)
319 
320 #define HDSP_spdifFrequencyMask    (HDSP_spdifFrequency0|HDSP_spdifFrequency1|HDSP_spdifFrequency2)
321 #define HDSP_spdifFrequencyMask_9632 (HDSP_spdifFrequency0|\
322 				      HDSP_spdifFrequency1|\
323 				      HDSP_spdifFrequency2|\
324 				      HDSP_spdifFrequency3)
325 
326 #define HDSP_spdifFrequency32KHz   (HDSP_spdifFrequency0)
327 #define HDSP_spdifFrequency44_1KHz (HDSP_spdifFrequency1)
328 #define HDSP_spdifFrequency48KHz   (HDSP_spdifFrequency0|HDSP_spdifFrequency1)
329 
330 #define HDSP_spdifFrequency64KHz   (HDSP_spdifFrequency2)
331 #define HDSP_spdifFrequency88_2KHz (HDSP_spdifFrequency0|HDSP_spdifFrequency2)
332 #define HDSP_spdifFrequency96KHz   (HDSP_spdifFrequency2|HDSP_spdifFrequency1)
333 
334 /* This is for H9632 cards */
335 #define HDSP_spdifFrequency128KHz   (HDSP_spdifFrequency0|\
336 				     HDSP_spdifFrequency1|\
337 				     HDSP_spdifFrequency2)
338 #define HDSP_spdifFrequency176_4KHz HDSP_spdifFrequency3
339 #define HDSP_spdifFrequency192KHz   (HDSP_spdifFrequency3|HDSP_spdifFrequency0)
340 
341 /* Status2 Register bits */
342 
343 #define HDSP_version0     (1<<0)
344 #define HDSP_version1     (1<<1)
345 #define HDSP_version2     (1<<2)
346 #define HDSP_wc_lock      (1<<3)
347 #define HDSP_wc_sync      (1<<4)
348 #define HDSP_inp_freq0    (1<<5)
349 #define HDSP_inp_freq1    (1<<6)
350 #define HDSP_inp_freq2    (1<<7)
351 #define HDSP_SelSyncRef0  (1<<8)
352 #define HDSP_SelSyncRef1  (1<<9)
353 #define HDSP_SelSyncRef2  (1<<10)
354 
355 #define HDSP_wc_valid (HDSP_wc_lock|HDSP_wc_sync)
356 
357 #define HDSP_systemFrequencyMask (HDSP_inp_freq0|HDSP_inp_freq1|HDSP_inp_freq2)
358 #define HDSP_systemFrequency32   (HDSP_inp_freq0)
359 #define HDSP_systemFrequency44_1 (HDSP_inp_freq1)
360 #define HDSP_systemFrequency48   (HDSP_inp_freq0|HDSP_inp_freq1)
361 #define HDSP_systemFrequency64   (HDSP_inp_freq2)
362 #define HDSP_systemFrequency88_2 (HDSP_inp_freq0|HDSP_inp_freq2)
363 #define HDSP_systemFrequency96   (HDSP_inp_freq1|HDSP_inp_freq2)
364 /* FIXME : more values for 9632 cards ? */
365 
366 #define HDSP_SelSyncRefMask        (HDSP_SelSyncRef0|HDSP_SelSyncRef1|HDSP_SelSyncRef2)
367 #define HDSP_SelSyncRef_ADAT1      0
368 #define HDSP_SelSyncRef_ADAT2      (HDSP_SelSyncRef0)
369 #define HDSP_SelSyncRef_ADAT3      (HDSP_SelSyncRef1)
370 #define HDSP_SelSyncRef_SPDIF      (HDSP_SelSyncRef0|HDSP_SelSyncRef1)
371 #define HDSP_SelSyncRef_WORD       (HDSP_SelSyncRef2)
372 #define HDSP_SelSyncRef_ADAT_SYNC  (HDSP_SelSyncRef0|HDSP_SelSyncRef2)
373 
374 /* Card state flags */
375 
376 #define HDSP_InitializationComplete  (1<<0)
377 #define HDSP_FirmwareLoaded	     (1<<1)
378 #define HDSP_FirmwareCached	     (1<<2)
379 
380 /* FIFO wait times, defined in terms of 1/10ths of msecs */
381 
382 #define HDSP_LONG_WAIT	 5000
383 #define HDSP_SHORT_WAIT  30
384 
385 #define UNITY_GAIN                       32768
386 #define MINUS_INFINITY_GAIN              0
387 
388 /* the size of a substream (1 mono data stream) */
389 
390 #define HDSP_CHANNEL_BUFFER_SAMPLES  (16*1024)
391 #define HDSP_CHANNEL_BUFFER_BYTES    (4*HDSP_CHANNEL_BUFFER_SAMPLES)
392 
393 /* the size of the area we need to allocate for DMA transfers. the
394    size is the same regardless of the number of channels - the
395    Multiface still uses the same memory area.
396 
397    Note that we allocate 1 more channel than is apparently needed
398    because the h/w seems to write 1 byte beyond the end of the last
399    page. Sigh.
400 */
401 
402 #define HDSP_DMA_AREA_BYTES ((HDSP_MAX_CHANNELS+1) * HDSP_CHANNEL_BUFFER_BYTES)
403 #define HDSP_DMA_AREA_KILOBYTES (HDSP_DMA_AREA_BYTES/1024)
404 
405 /* use hotplug firmeare loader? */
406 #if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
407 #if !defined(HDSP_USE_HWDEP_LOADER) && !defined(CONFIG_SND_HDSP)
408 #define HDSP_FW_LOADER
409 #endif
410 #endif
411 
412 struct hdsp_9632_meters {
413     u32 input_peak[16];
414     u32 playback_peak[16];
415     u32 output_peak[16];
416     u32 xxx_peak[16];
417     u32 padding[64];
418     u32 input_rms_low[16];
419     u32 playback_rms_low[16];
420     u32 output_rms_low[16];
421     u32 xxx_rms_low[16];
422     u32 input_rms_high[16];
423     u32 playback_rms_high[16];
424     u32 output_rms_high[16];
425     u32 xxx_rms_high[16];
426 };
427 
428 struct hdsp_midi {
429     struct hdsp             *hdsp;
430     int                      id;
431     struct snd_rawmidi           *rmidi;
432     struct snd_rawmidi_substream *input;
433     struct snd_rawmidi_substream *output;
434     char                     istimer; /* timer in use */
435     struct timer_list	     timer;
436     spinlock_t               lock;
437     int			     pending;
438 };
439 
440 struct hdsp {
441 	spinlock_t            lock;
442 	struct snd_pcm_substream *capture_substream;
443 	struct snd_pcm_substream *playback_substream;
444         struct hdsp_midi      midi[2];
445 	struct tasklet_struct midi_tasklet;
446 	int		      use_midi_tasklet;
447 	int                   precise_ptr;
448 	u32                   control_register;	     /* cached value */
449 	u32                   control2_register;     /* cached value */
450 	u32                   creg_spdif;
451 	u32                   creg_spdif_stream;
452 	int                   clock_source_locked;
453 	char                 *card_name;	     /* digiface/multiface */
454 	enum HDSP_IO_Type     io_type;               /* ditto, but for code use */
455         unsigned short        firmware_rev;
456 	unsigned short	      state;		     /* stores state bits */
457 	u32		      firmware_cache[24413]; /* this helps recover from accidental iobox power failure */
458 	size_t                period_bytes; 	     /* guess what this is */
459 	unsigned char	      max_channels;
460 	unsigned char	      qs_in_channels;	     /* quad speed mode for H9632 */
461 	unsigned char         ds_in_channels;
462 	unsigned char         ss_in_channels;	    /* different for multiface/digiface */
463 	unsigned char	      qs_out_channels;
464 	unsigned char         ds_out_channels;
465 	unsigned char         ss_out_channels;
466 
467 	struct snd_dma_buffer capture_dma_buf;
468 	struct snd_dma_buffer playback_dma_buf;
469 	unsigned char        *capture_buffer;	    /* suitably aligned address */
470 	unsigned char        *playback_buffer;	    /* suitably aligned address */
471 
472 	pid_t                 capture_pid;
473 	pid_t                 playback_pid;
474 	int                   running;
475 	int                   system_sample_rate;
476 	char                 *channel_map;
477 	int                   dev;
478 	int                   irq;
479 	unsigned long         port;
480         void __iomem         *iobase;
481 	struct snd_card *card;
482 	struct snd_pcm *pcm;
483 	struct snd_hwdep          *hwdep;
484 	struct pci_dev       *pci;
485 	struct snd_kcontrol *spdif_ctl;
486         unsigned short        mixer_matrix[HDSP_MATRIX_MIXER_SIZE];
487 	unsigned int          dds_value; /* last value written to freq register */
488 };
489 
490 /* These tables map the ALSA channels 1..N to the channels that we
491    need to use in order to find the relevant channel buffer. RME
492    refer to this kind of mapping as between "the ADAT channel and
493    the DMA channel." We index it using the logical audio channel,
494    and the value is the DMA channel (i.e. channel buffer number)
495    where the data for that channel can be read/written from/to.
496 */
497 
498 static char channel_map_df_ss[HDSP_MAX_CHANNELS] = {
499 	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
500 	18, 19, 20, 21, 22, 23, 24, 25
501 };
502 
503 static char channel_map_mf_ss[HDSP_MAX_CHANNELS] = { /* Multiface */
504 	/* Analog */
505 	0, 1, 2, 3, 4, 5, 6, 7,
506 	/* ADAT 2 */
507 	16, 17, 18, 19, 20, 21, 22, 23,
508 	/* SPDIF */
509 	24, 25,
510 	-1, -1, -1, -1, -1, -1, -1, -1
511 };
512 
513 static char channel_map_ds[HDSP_MAX_CHANNELS] = {
514 	/* ADAT channels are remapped */
515 	1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23,
516 	/* channels 12 and 13 are S/PDIF */
517 	24, 25,
518 	/* others don't exist */
519 	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
520 };
521 
522 static char channel_map_H9632_ss[HDSP_MAX_CHANNELS] = {
523 	/* ADAT channels */
524 	0, 1, 2, 3, 4, 5, 6, 7,
525 	/* SPDIF */
526 	8, 9,
527 	/* Analog */
528 	10, 11,
529 	/* AO4S-192 and AI4S-192 extension boards */
530 	12, 13, 14, 15,
531 	/* others don't exist */
532 	-1, -1, -1, -1, -1, -1, -1, -1,
533 	-1, -1
534 };
535 
536 static char channel_map_H9632_ds[HDSP_MAX_CHANNELS] = {
537 	/* ADAT */
538 	1, 3, 5, 7,
539 	/* SPDIF */
540 	8, 9,
541 	/* Analog */
542 	10, 11,
543 	/* AO4S-192 and AI4S-192 extension boards */
544 	12, 13, 14, 15,
545 	/* others don't exist */
546 	-1, -1, -1, -1, -1, -1, -1, -1,
547 	-1, -1, -1, -1, -1, -1
548 };
549 
550 static char channel_map_H9632_qs[HDSP_MAX_CHANNELS] = {
551 	/* ADAT is disabled in this mode */
552 	/* SPDIF */
553 	8, 9,
554 	/* Analog */
555 	10, 11,
556 	/* AO4S-192 and AI4S-192 extension boards */
557 	12, 13, 14, 15,
558 	/* others don't exist */
559 	-1, -1, -1, -1, -1, -1, -1, -1,
560 	-1, -1, -1, -1, -1, -1, -1, -1,
561 	-1, -1
562 };
563 
564 static int snd_hammerfall_get_buffer(struct pci_dev *pci, struct snd_dma_buffer *dmab, size_t size)
565 {
566 	dmab->dev.type = SNDRV_DMA_TYPE_DEV;
567 	dmab->dev.dev = snd_dma_pci_data(pci);
568 	if (snd_dma_get_reserved_buf(dmab, snd_dma_pci_buf_id(pci))) {
569 		if (dmab->bytes >= size)
570 			return 0;
571 	}
572 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
573 				size, dmab) < 0)
574 		return -ENOMEM;
575 	return 0;
576 }
577 
578 static void snd_hammerfall_free_buffer(struct snd_dma_buffer *dmab, struct pci_dev *pci)
579 {
580 	if (dmab->area) {
581 		dmab->dev.dev = NULL; /* make it anonymous */
582 		snd_dma_reserve_buf(dmab, snd_dma_pci_buf_id(pci));
583 	}
584 }
585 
586 
587 static struct pci_device_id snd_hdsp_ids[] = {
588 	{
589 		.vendor = PCI_VENDOR_ID_XILINX,
590 		.device = PCI_DEVICE_ID_XILINX_HAMMERFALL_DSP,
591 		.subvendor = PCI_ANY_ID,
592 		.subdevice = PCI_ANY_ID,
593 	}, /* RME Hammerfall-DSP */
594 	{ 0, },
595 };
596 
597 MODULE_DEVICE_TABLE(pci, snd_hdsp_ids);
598 
599 /* prototypes */
600 static int snd_hdsp_create_alsa_devices(struct snd_card *card, struct hdsp *hdsp);
601 static int snd_hdsp_create_pcm(struct snd_card *card, struct hdsp *hdsp);
602 static int snd_hdsp_enable_io (struct hdsp *hdsp);
603 static void snd_hdsp_initialize_midi_flush (struct hdsp *hdsp);
604 static void snd_hdsp_initialize_channels (struct hdsp *hdsp);
605 static int hdsp_fifo_wait(struct hdsp *hdsp, int count, int timeout);
606 static int hdsp_autosync_ref(struct hdsp *hdsp);
607 static int snd_hdsp_set_defaults(struct hdsp *hdsp);
608 static void snd_hdsp_9652_enable_mixer (struct hdsp *hdsp);
609 
610 static int hdsp_playback_to_output_key (struct hdsp *hdsp, int in, int out)
611 {
612 	switch (hdsp->io_type) {
613 	case Multiface:
614 	case Digiface:
615 	default:
616 		if (hdsp->firmware_rev == 0xa)
617 			return (64 * out) + (32 + (in));
618 		else
619 			return (52 * out) + (26 + (in));
620 	case H9632:
621 		return (32 * out) + (16 + (in));
622 	case H9652:
623 		return (52 * out) + (26 + (in));
624 	}
625 }
626 
627 static int hdsp_input_to_output_key (struct hdsp *hdsp, int in, int out)
628 {
629 	switch (hdsp->io_type) {
630 	case Multiface:
631 	case Digiface:
632 	default:
633 		if (hdsp->firmware_rev == 0xa)
634 			return (64 * out) + in;
635 		else
636 			return (52 * out) + in;
637 	case H9632:
638 		return (32 * out) + in;
639 	case H9652:
640 		return (52 * out) + in;
641 	}
642 }
643 
644 static void hdsp_write(struct hdsp *hdsp, int reg, int val)
645 {
646 	writel(val, hdsp->iobase + reg);
647 }
648 
649 static unsigned int hdsp_read(struct hdsp *hdsp, int reg)
650 {
651 	return readl (hdsp->iobase + reg);
652 }
653 
654 static int hdsp_check_for_iobox (struct hdsp *hdsp)
655 {
656 
657 	if (hdsp->io_type == H9652 || hdsp->io_type == H9632) return 0;
658 	if (hdsp_read (hdsp, HDSP_statusRegister) & HDSP_ConfigError) {
659 		snd_printk ("Hammerfall-DSP: no Digiface or Multiface connected!\n");
660 		hdsp->state &= ~HDSP_FirmwareLoaded;
661 		return -EIO;
662 	}
663 	return 0;
664 
665 }
666 
667 static int snd_hdsp_load_firmware_from_cache(struct hdsp *hdsp) {
668 
669 	int i;
670 	unsigned long flags;
671 
672 	if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
673 
674 		snd_printk ("Hammerfall-DSP: loading firmware\n");
675 
676 		hdsp_write (hdsp, HDSP_control2Reg, HDSP_S_PROGRAM);
677 		hdsp_write (hdsp, HDSP_fifoData, 0);
678 
679 		if (hdsp_fifo_wait (hdsp, 0, HDSP_LONG_WAIT)) {
680 			snd_printk ("Hammerfall-DSP: timeout waiting for download preparation\n");
681 			return -EIO;
682 		}
683 
684 		hdsp_write (hdsp, HDSP_control2Reg, HDSP_S_LOAD);
685 
686 		for (i = 0; i < 24413; ++i) {
687 			hdsp_write(hdsp, HDSP_fifoData, hdsp->firmware_cache[i]);
688 			if (hdsp_fifo_wait (hdsp, 127, HDSP_LONG_WAIT)) {
689 				snd_printk ("Hammerfall-DSP: timeout during firmware loading\n");
690 				return -EIO;
691 			}
692 		}
693 
694 		ssleep(3);
695 
696 		if (hdsp_fifo_wait (hdsp, 0, HDSP_LONG_WAIT)) {
697 			snd_printk ("Hammerfall-DSP: timeout at end of firmware loading\n");
698 		    	return -EIO;
699 		}
700 
701 #ifdef SNDRV_BIG_ENDIAN
702 		hdsp->control2_register = HDSP_BIGENDIAN_MODE;
703 #else
704 		hdsp->control2_register = 0;
705 #endif
706 		hdsp_write (hdsp, HDSP_control2Reg, hdsp->control2_register);
707 		snd_printk ("Hammerfall-DSP: finished firmware loading\n");
708 
709 	}
710 	if (hdsp->state & HDSP_InitializationComplete) {
711 		snd_printk(KERN_INFO "Hammerfall-DSP: firmware loaded from cache, restoring defaults\n");
712 		spin_lock_irqsave(&hdsp->lock, flags);
713 		snd_hdsp_set_defaults(hdsp);
714 		spin_unlock_irqrestore(&hdsp->lock, flags);
715 	}
716 
717 	hdsp->state |= HDSP_FirmwareLoaded;
718 
719 	return 0;
720 }
721 
722 static int hdsp_get_iobox_version (struct hdsp *hdsp)
723 {
724 	if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
725 
726 		hdsp_write (hdsp, HDSP_control2Reg, HDSP_PROGRAM);
727 		hdsp_write (hdsp, HDSP_fifoData, 0);
728 		if (hdsp_fifo_wait (hdsp, 0, HDSP_SHORT_WAIT) < 0)
729 			return -EIO;
730 
731 		hdsp_write (hdsp, HDSP_control2Reg, HDSP_S_LOAD);
732 		hdsp_write (hdsp, HDSP_fifoData, 0);
733 
734 		if (hdsp_fifo_wait (hdsp, 0, HDSP_SHORT_WAIT)) {
735 			hdsp->io_type = Multiface;
736 			hdsp_write (hdsp, HDSP_control2Reg, HDSP_VERSION_BIT);
737 			hdsp_write (hdsp, HDSP_control2Reg, HDSP_S_LOAD);
738 			hdsp_fifo_wait (hdsp, 0, HDSP_SHORT_WAIT);
739 		} else {
740 			hdsp->io_type = Digiface;
741 		}
742 	} else {
743 		/* firmware was already loaded, get iobox type */
744 		if (hdsp_read(hdsp, HDSP_status2Register) & HDSP_version1)
745 			hdsp->io_type = Multiface;
746 		else
747 			hdsp->io_type = Digiface;
748 	}
749 	return 0;
750 }
751 
752 
753 #ifdef HDSP_FW_LOADER
754 static int hdsp_request_fw_loader(struct hdsp *hdsp);
755 #endif
756 
757 static int hdsp_check_for_firmware (struct hdsp *hdsp, int load_on_demand)
758 {
759 	if (hdsp->io_type == H9652 || hdsp->io_type == H9632)
760 		return 0;
761 	if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
762 		hdsp->state &= ~HDSP_FirmwareLoaded;
763 		if (! load_on_demand)
764 			return -EIO;
765 		snd_printk(KERN_ERR "Hammerfall-DSP: firmware not present.\n");
766 		/* try to load firmware */
767 		if (! (hdsp->state & HDSP_FirmwareCached)) {
768 #ifdef HDSP_FW_LOADER
769 			if (! hdsp_request_fw_loader(hdsp))
770 				return 0;
771 #endif
772 			snd_printk(KERN_ERR
773 				   "Hammerfall-DSP: No firmware loaded nor "
774 				   "cached, please upload firmware.\n");
775 			return -EIO;
776 		}
777 		if (snd_hdsp_load_firmware_from_cache(hdsp) != 0) {
778 			snd_printk(KERN_ERR
779 				   "Hammerfall-DSP: Firmware loading from "
780 				   "cache failed, please upload manually.\n");
781 			return -EIO;
782 		}
783 	}
784 	return 0;
785 }
786 
787 
788 static int hdsp_fifo_wait(struct hdsp *hdsp, int count, int timeout)
789 {
790 	int i;
791 
792 	/* the fifoStatus registers reports on how many words
793 	   are available in the command FIFO.
794 	*/
795 
796 	for (i = 0; i < timeout; i++) {
797 
798 		if ((int)(hdsp_read (hdsp, HDSP_fifoStatus) & 0xff) <= count)
799 			return 0;
800 
801 		/* not very friendly, but we only do this during a firmware
802 		   load and changing the mixer, so we just put up with it.
803 		*/
804 
805 		udelay (100);
806 	}
807 
808 	snd_printk ("Hammerfall-DSP: wait for FIFO status <= %d failed after %d iterations\n",
809 		    count, timeout);
810 	return -1;
811 }
812 
813 static int hdsp_read_gain (struct hdsp *hdsp, unsigned int addr)
814 {
815 	if (addr >= HDSP_MATRIX_MIXER_SIZE)
816 		return 0;
817 
818 	return hdsp->mixer_matrix[addr];
819 }
820 
821 static int hdsp_write_gain(struct hdsp *hdsp, unsigned int addr, unsigned short data)
822 {
823 	unsigned int ad;
824 
825 	if (addr >= HDSP_MATRIX_MIXER_SIZE)
826 		return -1;
827 
828 	if (hdsp->io_type == H9652 || hdsp->io_type == H9632) {
829 
830 		/* from martin bjornsen:
831 
832 		   "You can only write dwords to the
833 		   mixer memory which contain two
834 		   mixer values in the low and high
835 		   word. So if you want to change
836 		   value 0 you have to read value 1
837 		   from the cache and write both to
838 		   the first dword in the mixer
839 		   memory."
840 		*/
841 
842 		if (hdsp->io_type == H9632 && addr >= 512)
843 			return 0;
844 
845 		if (hdsp->io_type == H9652 && addr >= 1352)
846 			return 0;
847 
848 		hdsp->mixer_matrix[addr] = data;
849 
850 
851 		/* `addr' addresses a 16-bit wide address, but
852 		   the address space accessed via hdsp_write
853 		   uses byte offsets. put another way, addr
854 		   varies from 0 to 1351, but to access the
855 		   corresponding memory location, we need
856 		   to access 0 to 2703 ...
857 		*/
858 		ad = addr/2;
859 
860 		hdsp_write (hdsp, 4096 + (ad*4),
861 			    (hdsp->mixer_matrix[(addr&0x7fe)+1] << 16) +
862 			    hdsp->mixer_matrix[addr&0x7fe]);
863 
864 		return 0;
865 
866 	} else {
867 
868 		ad = (addr << 16) + data;
869 
870 		if (hdsp_fifo_wait(hdsp, 127, HDSP_LONG_WAIT))
871 			return -1;
872 
873 		hdsp_write (hdsp, HDSP_fifoData, ad);
874 		hdsp->mixer_matrix[addr] = data;
875 
876 	}
877 
878 	return 0;
879 }
880 
881 static int snd_hdsp_use_is_exclusive(struct hdsp *hdsp)
882 {
883 	unsigned long flags;
884 	int ret = 1;
885 
886 	spin_lock_irqsave(&hdsp->lock, flags);
887 	if ((hdsp->playback_pid != hdsp->capture_pid) &&
888 	    (hdsp->playback_pid >= 0) && (hdsp->capture_pid >= 0))
889 		ret = 0;
890 	spin_unlock_irqrestore(&hdsp->lock, flags);
891 	return ret;
892 }
893 
894 static int hdsp_spdif_sample_rate(struct hdsp *hdsp)
895 {
896 	unsigned int status = hdsp_read(hdsp, HDSP_statusRegister);
897 	unsigned int rate_bits = (status & HDSP_spdifFrequencyMask);
898 
899 	/* For the 9632, the mask is different */
900 	if (hdsp->io_type == H9632)
901 		 rate_bits = (status & HDSP_spdifFrequencyMask_9632);
902 
903 	if (status & HDSP_SPDIFErrorFlag)
904 		return 0;
905 
906 	switch (rate_bits) {
907 	case HDSP_spdifFrequency32KHz: return 32000;
908 	case HDSP_spdifFrequency44_1KHz: return 44100;
909 	case HDSP_spdifFrequency48KHz: return 48000;
910 	case HDSP_spdifFrequency64KHz: return 64000;
911 	case HDSP_spdifFrequency88_2KHz: return 88200;
912 	case HDSP_spdifFrequency96KHz: return 96000;
913 	case HDSP_spdifFrequency128KHz:
914 		if (hdsp->io_type == H9632) return 128000;
915 		break;
916 	case HDSP_spdifFrequency176_4KHz:
917 		if (hdsp->io_type == H9632) return 176400;
918 		break;
919 	case HDSP_spdifFrequency192KHz:
920 		if (hdsp->io_type == H9632) return 192000;
921 		break;
922 	default:
923 		break;
924 	}
925 	snd_printk ("Hammerfall-DSP: unknown spdif frequency status; bits = 0x%x, status = 0x%x\n", rate_bits, status);
926 	return 0;
927 }
928 
929 static int hdsp_external_sample_rate(struct hdsp *hdsp)
930 {
931 	unsigned int status2 = hdsp_read(hdsp, HDSP_status2Register);
932 	unsigned int rate_bits = status2 & HDSP_systemFrequencyMask;
933 
934 	/* For the 9632 card, there seems to be no bit for indicating external
935 	 * sample rate greater than 96kHz. The card reports the corresponding
936 	 * single speed. So the best means seems to get spdif rate when
937 	 * autosync reference is spdif */
938 	if (hdsp->io_type == H9632 &&
939 	    hdsp_autosync_ref(hdsp) == HDSP_AUTOSYNC_FROM_SPDIF)
940 		 return hdsp_spdif_sample_rate(hdsp);
941 
942 	switch (rate_bits) {
943 	case HDSP_systemFrequency32:   return 32000;
944 	case HDSP_systemFrequency44_1: return 44100;
945 	case HDSP_systemFrequency48:   return 48000;
946 	case HDSP_systemFrequency64:   return 64000;
947 	case HDSP_systemFrequency88_2: return 88200;
948 	case HDSP_systemFrequency96:   return 96000;
949 	default:
950 		return 0;
951 	}
952 }
953 
954 static void hdsp_compute_period_size(struct hdsp *hdsp)
955 {
956 	hdsp->period_bytes = 1 << ((hdsp_decode_latency(hdsp->control_register) + 8));
957 }
958 
959 static snd_pcm_uframes_t hdsp_hw_pointer(struct hdsp *hdsp)
960 {
961 	int position;
962 
963 	position = hdsp_read(hdsp, HDSP_statusRegister);
964 
965 	if (!hdsp->precise_ptr)
966 		return (position & HDSP_BufferID) ? (hdsp->period_bytes / 4) : 0;
967 
968 	position &= HDSP_BufferPositionMask;
969 	position /= 4;
970 	position &= (hdsp->period_bytes/2) - 1;
971 	return position;
972 }
973 
974 static void hdsp_reset_hw_pointer(struct hdsp *hdsp)
975 {
976 	hdsp_write (hdsp, HDSP_resetPointer, 0);
977 	if (hdsp->io_type == H9632 && hdsp->firmware_rev >= 152)
978 		/* HDSP_resetPointer = HDSP_freqReg, which is strange and
979 		 * requires (?) to write again DDS value after a reset pointer
980 		 * (at least, it works like this) */
981 		hdsp_write (hdsp, HDSP_freqReg, hdsp->dds_value);
982 }
983 
984 static void hdsp_start_audio(struct hdsp *s)
985 {
986 	s->control_register |= (HDSP_AudioInterruptEnable | HDSP_Start);
987 	hdsp_write(s, HDSP_controlRegister, s->control_register);
988 }
989 
990 static void hdsp_stop_audio(struct hdsp *s)
991 {
992 	s->control_register &= ~(HDSP_Start | HDSP_AudioInterruptEnable);
993 	hdsp_write(s, HDSP_controlRegister, s->control_register);
994 }
995 
996 static void hdsp_silence_playback(struct hdsp *hdsp)
997 {
998 	memset(hdsp->playback_buffer, 0, HDSP_DMA_AREA_BYTES);
999 }
1000 
1001 static int hdsp_set_interrupt_interval(struct hdsp *s, unsigned int frames)
1002 {
1003 	int n;
1004 
1005 	spin_lock_irq(&s->lock);
1006 
1007 	frames >>= 7;
1008 	n = 0;
1009 	while (frames) {
1010 		n++;
1011 		frames >>= 1;
1012 	}
1013 
1014 	s->control_register &= ~HDSP_LatencyMask;
1015 	s->control_register |= hdsp_encode_latency(n);
1016 
1017 	hdsp_write(s, HDSP_controlRegister, s->control_register);
1018 
1019 	hdsp_compute_period_size(s);
1020 
1021 	spin_unlock_irq(&s->lock);
1022 
1023 	return 0;
1024 }
1025 
1026 static void hdsp_set_dds_value(struct hdsp *hdsp, int rate)
1027 {
1028 	u64 n;
1029 	u32 r;
1030 
1031 	if (rate >= 112000)
1032 		rate /= 4;
1033 	else if (rate >= 56000)
1034 		rate /= 2;
1035 
1036 	n = DDS_NUMERATOR;
1037 	div64_32(&n, rate, &r);
1038 	/* n should be less than 2^32 for being written to FREQ register */
1039 	snd_assert((n >> 32) == 0);
1040 	/* HDSP_freqReg and HDSP_resetPointer are the same, so keep the DDS
1041 	   value to write it after a reset */
1042 	hdsp->dds_value = n;
1043 	hdsp_write(hdsp, HDSP_freqReg, hdsp->dds_value);
1044 }
1045 
1046 static int hdsp_set_rate(struct hdsp *hdsp, int rate, int called_internally)
1047 {
1048 	int reject_if_open = 0;
1049 	int current_rate;
1050 	int rate_bits;
1051 
1052 	/* ASSUMPTION: hdsp->lock is either held, or
1053 	   there is no need for it (e.g. during module
1054 	   initialization).
1055 	*/
1056 
1057 	if (!(hdsp->control_register & HDSP_ClockModeMaster)) {
1058 		if (called_internally) {
1059 			/* request from ctl or card initialization */
1060 			snd_printk(KERN_ERR "Hammerfall-DSP: device is not running as a clock master: cannot set sample rate.\n");
1061 			return -1;
1062 		} else {
1063 			/* hw_param request while in AutoSync mode */
1064 			int external_freq = hdsp_external_sample_rate(hdsp);
1065 			int spdif_freq = hdsp_spdif_sample_rate(hdsp);
1066 
1067 			if ((spdif_freq == external_freq*2) && (hdsp_autosync_ref(hdsp) >= HDSP_AUTOSYNC_FROM_ADAT1))
1068 				snd_printk(KERN_INFO "Hammerfall-DSP: Detected ADAT in double speed mode\n");
1069 			else if (hdsp->io_type == H9632 && (spdif_freq == external_freq*4) && (hdsp_autosync_ref(hdsp) >= HDSP_AUTOSYNC_FROM_ADAT1))
1070 				snd_printk(KERN_INFO "Hammerfall-DSP: Detected ADAT in quad speed mode\n");
1071 			else if (rate != external_freq) {
1072 				snd_printk(KERN_INFO "Hammerfall-DSP: No AutoSync source for requested rate\n");
1073 				return -1;
1074 			}
1075 		}
1076 	}
1077 
1078 	current_rate = hdsp->system_sample_rate;
1079 
1080 	/* Changing from a "single speed" to a "double speed" rate is
1081 	   not allowed if any substreams are open. This is because
1082 	   such a change causes a shift in the location of
1083 	   the DMA buffers and a reduction in the number of available
1084 	   buffers.
1085 
1086 	   Note that a similar but essentially insoluble problem
1087 	   exists for externally-driven rate changes. All we can do
1088 	   is to flag rate changes in the read/write routines.  */
1089 
1090 	if (rate > 96000 && hdsp->io_type != H9632)
1091 		return -EINVAL;
1092 
1093 	switch (rate) {
1094 	case 32000:
1095 		if (current_rate > 48000)
1096 			reject_if_open = 1;
1097 		rate_bits = HDSP_Frequency32KHz;
1098 		break;
1099 	case 44100:
1100 		if (current_rate > 48000)
1101 			reject_if_open = 1;
1102 		rate_bits = HDSP_Frequency44_1KHz;
1103 		break;
1104 	case 48000:
1105 		if (current_rate > 48000)
1106 			reject_if_open = 1;
1107 		rate_bits = HDSP_Frequency48KHz;
1108 		break;
1109 	case 64000:
1110 		if (current_rate <= 48000 || current_rate > 96000)
1111 			reject_if_open = 1;
1112 		rate_bits = HDSP_Frequency64KHz;
1113 		break;
1114 	case 88200:
1115 		if (current_rate <= 48000 || current_rate > 96000)
1116 			reject_if_open = 1;
1117 		rate_bits = HDSP_Frequency88_2KHz;
1118 		break;
1119 	case 96000:
1120 		if (current_rate <= 48000 || current_rate > 96000)
1121 			reject_if_open = 1;
1122 		rate_bits = HDSP_Frequency96KHz;
1123 		break;
1124 	case 128000:
1125 		if (current_rate < 128000)
1126 			reject_if_open = 1;
1127 		rate_bits = HDSP_Frequency128KHz;
1128 		break;
1129 	case 176400:
1130 		if (current_rate < 128000)
1131 			reject_if_open = 1;
1132 		rate_bits = HDSP_Frequency176_4KHz;
1133 		break;
1134 	case 192000:
1135 		if (current_rate < 128000)
1136 			reject_if_open = 1;
1137 		rate_bits = HDSP_Frequency192KHz;
1138 		break;
1139 	default:
1140 		return -EINVAL;
1141 	}
1142 
1143 	if (reject_if_open && (hdsp->capture_pid >= 0 || hdsp->playback_pid >= 0)) {
1144 		snd_printk ("Hammerfall-DSP: cannot change speed mode (capture PID = %d, playback PID = %d)\n",
1145 			    hdsp->capture_pid,
1146 			    hdsp->playback_pid);
1147 		return -EBUSY;
1148 	}
1149 
1150 	hdsp->control_register &= ~HDSP_FrequencyMask;
1151 	hdsp->control_register |= rate_bits;
1152 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1153 
1154 	/* For HDSP9632 rev 152, need to set DDS value in FREQ register */
1155 	if (hdsp->io_type == H9632 && hdsp->firmware_rev >= 152)
1156 		hdsp_set_dds_value(hdsp, rate);
1157 
1158 	if (rate >= 128000) {
1159 		hdsp->channel_map = channel_map_H9632_qs;
1160 	} else if (rate > 48000) {
1161 		if (hdsp->io_type == H9632)
1162 			hdsp->channel_map = channel_map_H9632_ds;
1163 		else
1164 			hdsp->channel_map = channel_map_ds;
1165 	} else {
1166 		switch (hdsp->io_type) {
1167 		case Multiface:
1168 			hdsp->channel_map = channel_map_mf_ss;
1169 			break;
1170 		case Digiface:
1171 		case H9652:
1172 			hdsp->channel_map = channel_map_df_ss;
1173 			break;
1174 		case H9632:
1175 			hdsp->channel_map = channel_map_H9632_ss;
1176 			break;
1177 		default:
1178 			/* should never happen */
1179 			break;
1180 		}
1181 	}
1182 
1183 	hdsp->system_sample_rate = rate;
1184 
1185 	return 0;
1186 }
1187 
1188 /*----------------------------------------------------------------------------
1189    MIDI
1190   ----------------------------------------------------------------------------*/
1191 
1192 static unsigned char snd_hdsp_midi_read_byte (struct hdsp *hdsp, int id)
1193 {
1194 	/* the hardware already does the relevant bit-mask with 0xff */
1195 	if (id)
1196 		return hdsp_read(hdsp, HDSP_midiDataIn1);
1197 	else
1198 		return hdsp_read(hdsp, HDSP_midiDataIn0);
1199 }
1200 
1201 static void snd_hdsp_midi_write_byte (struct hdsp *hdsp, int id, int val)
1202 {
1203 	/* the hardware already does the relevant bit-mask with 0xff */
1204 	if (id)
1205 		hdsp_write(hdsp, HDSP_midiDataOut1, val);
1206 	else
1207 		hdsp_write(hdsp, HDSP_midiDataOut0, val);
1208 }
1209 
1210 static int snd_hdsp_midi_input_available (struct hdsp *hdsp, int id)
1211 {
1212 	if (id)
1213 		return (hdsp_read(hdsp, HDSP_midiStatusIn1) & 0xff);
1214 	else
1215 		return (hdsp_read(hdsp, HDSP_midiStatusIn0) & 0xff);
1216 }
1217 
1218 static int snd_hdsp_midi_output_possible (struct hdsp *hdsp, int id)
1219 {
1220 	int fifo_bytes_used;
1221 
1222 	if (id)
1223 		fifo_bytes_used = hdsp_read(hdsp, HDSP_midiStatusOut1) & 0xff;
1224 	else
1225 		fifo_bytes_used = hdsp_read(hdsp, HDSP_midiStatusOut0) & 0xff;
1226 
1227 	if (fifo_bytes_used < 128)
1228 		return  128 - fifo_bytes_used;
1229 	else
1230 		return 0;
1231 }
1232 
1233 static void snd_hdsp_flush_midi_input (struct hdsp *hdsp, int id)
1234 {
1235 	while (snd_hdsp_midi_input_available (hdsp, id))
1236 		snd_hdsp_midi_read_byte (hdsp, id);
1237 }
1238 
1239 static int snd_hdsp_midi_output_write (struct hdsp_midi *hmidi)
1240 {
1241 	unsigned long flags;
1242 	int n_pending;
1243 	int to_write;
1244 	int i;
1245 	unsigned char buf[128];
1246 
1247 	/* Output is not interrupt driven */
1248 
1249 	spin_lock_irqsave (&hmidi->lock, flags);
1250 	if (hmidi->output) {
1251 		if (!snd_rawmidi_transmit_empty (hmidi->output)) {
1252 			if ((n_pending = snd_hdsp_midi_output_possible (hmidi->hdsp, hmidi->id)) > 0) {
1253 				if (n_pending > (int)sizeof (buf))
1254 					n_pending = sizeof (buf);
1255 
1256 				if ((to_write = snd_rawmidi_transmit (hmidi->output, buf, n_pending)) > 0) {
1257 					for (i = 0; i < to_write; ++i)
1258 						snd_hdsp_midi_write_byte (hmidi->hdsp, hmidi->id, buf[i]);
1259 				}
1260 			}
1261 		}
1262 	}
1263 	spin_unlock_irqrestore (&hmidi->lock, flags);
1264 	return 0;
1265 }
1266 
1267 static int snd_hdsp_midi_input_read (struct hdsp_midi *hmidi)
1268 {
1269 	unsigned char buf[128]; /* this buffer is designed to match the MIDI input FIFO size */
1270 	unsigned long flags;
1271 	int n_pending;
1272 	int i;
1273 
1274 	spin_lock_irqsave (&hmidi->lock, flags);
1275 	if ((n_pending = snd_hdsp_midi_input_available (hmidi->hdsp, hmidi->id)) > 0) {
1276 		if (hmidi->input) {
1277 			if (n_pending > (int)sizeof (buf))
1278 				n_pending = sizeof (buf);
1279 			for (i = 0; i < n_pending; ++i)
1280 				buf[i] = snd_hdsp_midi_read_byte (hmidi->hdsp, hmidi->id);
1281 			if (n_pending)
1282 				snd_rawmidi_receive (hmidi->input, buf, n_pending);
1283 		} else {
1284 			/* flush the MIDI input FIFO */
1285 			while (--n_pending)
1286 				snd_hdsp_midi_read_byte (hmidi->hdsp, hmidi->id);
1287 		}
1288 	}
1289 	hmidi->pending = 0;
1290 	if (hmidi->id)
1291 		hmidi->hdsp->control_register |= HDSP_Midi1InterruptEnable;
1292 	else
1293 		hmidi->hdsp->control_register |= HDSP_Midi0InterruptEnable;
1294 	hdsp_write(hmidi->hdsp, HDSP_controlRegister, hmidi->hdsp->control_register);
1295 	spin_unlock_irqrestore (&hmidi->lock, flags);
1296 	return snd_hdsp_midi_output_write (hmidi);
1297 }
1298 
1299 static void snd_hdsp_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
1300 {
1301 	struct hdsp *hdsp;
1302 	struct hdsp_midi *hmidi;
1303 	unsigned long flags;
1304 	u32 ie;
1305 
1306 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1307 	hdsp = hmidi->hdsp;
1308 	ie = hmidi->id ? HDSP_Midi1InterruptEnable : HDSP_Midi0InterruptEnable;
1309 	spin_lock_irqsave (&hdsp->lock, flags);
1310 	if (up) {
1311 		if (!(hdsp->control_register & ie)) {
1312 			snd_hdsp_flush_midi_input (hdsp, hmidi->id);
1313 			hdsp->control_register |= ie;
1314 		}
1315 	} else {
1316 		hdsp->control_register &= ~ie;
1317 		tasklet_kill(&hdsp->midi_tasklet);
1318 	}
1319 
1320 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1321 	spin_unlock_irqrestore (&hdsp->lock, flags);
1322 }
1323 
1324 static void snd_hdsp_midi_output_timer(unsigned long data)
1325 {
1326 	struct hdsp_midi *hmidi = (struct hdsp_midi *) data;
1327 	unsigned long flags;
1328 
1329 	snd_hdsp_midi_output_write(hmidi);
1330 	spin_lock_irqsave (&hmidi->lock, flags);
1331 
1332 	/* this does not bump hmidi->istimer, because the
1333 	   kernel automatically removed the timer when it
1334 	   expired, and we are now adding it back, thus
1335 	   leaving istimer wherever it was set before.
1336 	*/
1337 
1338 	if (hmidi->istimer) {
1339 		hmidi->timer.expires = 1 + jiffies;
1340 		add_timer(&hmidi->timer);
1341 	}
1342 
1343 	spin_unlock_irqrestore (&hmidi->lock, flags);
1344 }
1345 
1346 static void snd_hdsp_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
1347 {
1348 	struct hdsp_midi *hmidi;
1349 	unsigned long flags;
1350 
1351 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1352 	spin_lock_irqsave (&hmidi->lock, flags);
1353 	if (up) {
1354 		if (!hmidi->istimer) {
1355 			init_timer(&hmidi->timer);
1356 			hmidi->timer.function = snd_hdsp_midi_output_timer;
1357 			hmidi->timer.data = (unsigned long) hmidi;
1358 			hmidi->timer.expires = 1 + jiffies;
1359 			add_timer(&hmidi->timer);
1360 			hmidi->istimer++;
1361 		}
1362 	} else {
1363 		if (hmidi->istimer && --hmidi->istimer <= 0)
1364 			del_timer (&hmidi->timer);
1365 	}
1366 	spin_unlock_irqrestore (&hmidi->lock, flags);
1367 	if (up)
1368 		snd_hdsp_midi_output_write(hmidi);
1369 }
1370 
1371 static int snd_hdsp_midi_input_open(struct snd_rawmidi_substream *substream)
1372 {
1373 	struct hdsp_midi *hmidi;
1374 
1375 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1376 	spin_lock_irq (&hmidi->lock);
1377 	snd_hdsp_flush_midi_input (hmidi->hdsp, hmidi->id);
1378 	hmidi->input = substream;
1379 	spin_unlock_irq (&hmidi->lock);
1380 
1381 	return 0;
1382 }
1383 
1384 static int snd_hdsp_midi_output_open(struct snd_rawmidi_substream *substream)
1385 {
1386 	struct hdsp_midi *hmidi;
1387 
1388 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1389 	spin_lock_irq (&hmidi->lock);
1390 	hmidi->output = substream;
1391 	spin_unlock_irq (&hmidi->lock);
1392 
1393 	return 0;
1394 }
1395 
1396 static int snd_hdsp_midi_input_close(struct snd_rawmidi_substream *substream)
1397 {
1398 	struct hdsp_midi *hmidi;
1399 
1400 	snd_hdsp_midi_input_trigger (substream, 0);
1401 
1402 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1403 	spin_lock_irq (&hmidi->lock);
1404 	hmidi->input = NULL;
1405 	spin_unlock_irq (&hmidi->lock);
1406 
1407 	return 0;
1408 }
1409 
1410 static int snd_hdsp_midi_output_close(struct snd_rawmidi_substream *substream)
1411 {
1412 	struct hdsp_midi *hmidi;
1413 
1414 	snd_hdsp_midi_output_trigger (substream, 0);
1415 
1416 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1417 	spin_lock_irq (&hmidi->lock);
1418 	hmidi->output = NULL;
1419 	spin_unlock_irq (&hmidi->lock);
1420 
1421 	return 0;
1422 }
1423 
1424 static struct snd_rawmidi_ops snd_hdsp_midi_output =
1425 {
1426 	.open =		snd_hdsp_midi_output_open,
1427 	.close =	snd_hdsp_midi_output_close,
1428 	.trigger =	snd_hdsp_midi_output_trigger,
1429 };
1430 
1431 static struct snd_rawmidi_ops snd_hdsp_midi_input =
1432 {
1433 	.open =		snd_hdsp_midi_input_open,
1434 	.close =	snd_hdsp_midi_input_close,
1435 	.trigger =	snd_hdsp_midi_input_trigger,
1436 };
1437 
1438 static int snd_hdsp_create_midi (struct snd_card *card, struct hdsp *hdsp, int id)
1439 {
1440 	char buf[32];
1441 
1442 	hdsp->midi[id].id = id;
1443 	hdsp->midi[id].rmidi = NULL;
1444 	hdsp->midi[id].input = NULL;
1445 	hdsp->midi[id].output = NULL;
1446 	hdsp->midi[id].hdsp = hdsp;
1447 	hdsp->midi[id].istimer = 0;
1448 	hdsp->midi[id].pending = 0;
1449 	spin_lock_init (&hdsp->midi[id].lock);
1450 
1451 	sprintf (buf, "%s MIDI %d", card->shortname, id+1);
1452 	if (snd_rawmidi_new (card, buf, id, 1, 1, &hdsp->midi[id].rmidi) < 0)
1453 		return -1;
1454 
1455 	sprintf (hdsp->midi[id].rmidi->name, "%s MIDI %d", card->id, id+1);
1456 	hdsp->midi[id].rmidi->private_data = &hdsp->midi[id];
1457 
1458 	snd_rawmidi_set_ops (hdsp->midi[id].rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_hdsp_midi_output);
1459 	snd_rawmidi_set_ops (hdsp->midi[id].rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_hdsp_midi_input);
1460 
1461 	hdsp->midi[id].rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
1462 		SNDRV_RAWMIDI_INFO_INPUT |
1463 		SNDRV_RAWMIDI_INFO_DUPLEX;
1464 
1465 	return 0;
1466 }
1467 
1468 /*-----------------------------------------------------------------------------
1469   Control Interface
1470   ----------------------------------------------------------------------------*/
1471 
1472 static u32 snd_hdsp_convert_from_aes(struct snd_aes_iec958 *aes)
1473 {
1474 	u32 val = 0;
1475 	val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? HDSP_SPDIFProfessional : 0;
1476 	val |= (aes->status[0] & IEC958_AES0_NONAUDIO) ? HDSP_SPDIFNonAudio : 0;
1477 	if (val & HDSP_SPDIFProfessional)
1478 		val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? HDSP_SPDIFEmphasis : 0;
1479 	else
1480 		val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? HDSP_SPDIFEmphasis : 0;
1481 	return val;
1482 }
1483 
1484 static void snd_hdsp_convert_to_aes(struct snd_aes_iec958 *aes, u32 val)
1485 {
1486 	aes->status[0] = ((val & HDSP_SPDIFProfessional) ? IEC958_AES0_PROFESSIONAL : 0) |
1487 			 ((val & HDSP_SPDIFNonAudio) ? IEC958_AES0_NONAUDIO : 0);
1488 	if (val & HDSP_SPDIFProfessional)
1489 		aes->status[0] |= (val & HDSP_SPDIFEmphasis) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
1490 	else
1491 		aes->status[0] |= (val & HDSP_SPDIFEmphasis) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
1492 }
1493 
1494 static int snd_hdsp_control_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1495 {
1496 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1497 	uinfo->count = 1;
1498 	return 0;
1499 }
1500 
1501 static int snd_hdsp_control_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1502 {
1503 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1504 
1505 	snd_hdsp_convert_to_aes(&ucontrol->value.iec958, hdsp->creg_spdif);
1506 	return 0;
1507 }
1508 
1509 static int snd_hdsp_control_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1510 {
1511 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1512 	int change;
1513 	u32 val;
1514 
1515 	val = snd_hdsp_convert_from_aes(&ucontrol->value.iec958);
1516 	spin_lock_irq(&hdsp->lock);
1517 	change = val != hdsp->creg_spdif;
1518 	hdsp->creg_spdif = val;
1519 	spin_unlock_irq(&hdsp->lock);
1520 	return change;
1521 }
1522 
1523 static int snd_hdsp_control_spdif_stream_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1524 {
1525 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1526 	uinfo->count = 1;
1527 	return 0;
1528 }
1529 
1530 static int snd_hdsp_control_spdif_stream_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1531 {
1532 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1533 
1534 	snd_hdsp_convert_to_aes(&ucontrol->value.iec958, hdsp->creg_spdif_stream);
1535 	return 0;
1536 }
1537 
1538 static int snd_hdsp_control_spdif_stream_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1539 {
1540 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1541 	int change;
1542 	u32 val;
1543 
1544 	val = snd_hdsp_convert_from_aes(&ucontrol->value.iec958);
1545 	spin_lock_irq(&hdsp->lock);
1546 	change = val != hdsp->creg_spdif_stream;
1547 	hdsp->creg_spdif_stream = val;
1548 	hdsp->control_register &= ~(HDSP_SPDIFProfessional | HDSP_SPDIFNonAudio | HDSP_SPDIFEmphasis);
1549 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register |= val);
1550 	spin_unlock_irq(&hdsp->lock);
1551 	return change;
1552 }
1553 
1554 static int snd_hdsp_control_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1555 {
1556 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1557 	uinfo->count = 1;
1558 	return 0;
1559 }
1560 
1561 static int snd_hdsp_control_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1562 {
1563 	ucontrol->value.iec958.status[0] = kcontrol->private_value;
1564 	return 0;
1565 }
1566 
1567 #define HDSP_SPDIF_IN(xname, xindex) \
1568 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1569   .name = xname, \
1570   .index = xindex, \
1571   .info = snd_hdsp_info_spdif_in, \
1572   .get = snd_hdsp_get_spdif_in, \
1573   .put = snd_hdsp_put_spdif_in }
1574 
1575 static unsigned int hdsp_spdif_in(struct hdsp *hdsp)
1576 {
1577 	return hdsp_decode_spdif_in(hdsp->control_register & HDSP_SPDIFInputMask);
1578 }
1579 
1580 static int hdsp_set_spdif_input(struct hdsp *hdsp, int in)
1581 {
1582 	hdsp->control_register &= ~HDSP_SPDIFInputMask;
1583 	hdsp->control_register |= hdsp_encode_spdif_in(in);
1584 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1585 	return 0;
1586 }
1587 
1588 static int snd_hdsp_info_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1589 {
1590 	static char *texts[4] = {"Optical", "Coaxial", "Internal", "AES"};
1591 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1592 
1593 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1594 	uinfo->count = 1;
1595 	uinfo->value.enumerated.items = ((hdsp->io_type == H9632) ? 4 : 3);
1596 	if (uinfo->value.enumerated.item > ((hdsp->io_type == H9632) ? 3 : 2))
1597 		uinfo->value.enumerated.item = ((hdsp->io_type == H9632) ? 3 : 2);
1598 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1599 	return 0;
1600 }
1601 
1602 static int snd_hdsp_get_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1603 {
1604 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1605 
1606 	ucontrol->value.enumerated.item[0] = hdsp_spdif_in(hdsp);
1607 	return 0;
1608 }
1609 
1610 static int snd_hdsp_put_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1611 {
1612 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1613 	int change;
1614 	unsigned int val;
1615 
1616 	if (!snd_hdsp_use_is_exclusive(hdsp))
1617 		return -EBUSY;
1618 	val = ucontrol->value.enumerated.item[0] % ((hdsp->io_type == H9632) ? 4 : 3);
1619 	spin_lock_irq(&hdsp->lock);
1620 	change = val != hdsp_spdif_in(hdsp);
1621 	if (change)
1622 		hdsp_set_spdif_input(hdsp, val);
1623 	spin_unlock_irq(&hdsp->lock);
1624 	return change;
1625 }
1626 
1627 #define HDSP_SPDIF_OUT(xname, xindex) \
1628 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1629   .info = snd_hdsp_info_spdif_bits, \
1630   .get = snd_hdsp_get_spdif_out, .put = snd_hdsp_put_spdif_out }
1631 
1632 static int hdsp_spdif_out(struct hdsp *hdsp)
1633 {
1634 	return (hdsp->control_register & HDSP_SPDIFOpticalOut) ? 1 : 0;
1635 }
1636 
1637 static int hdsp_set_spdif_output(struct hdsp *hdsp, int out)
1638 {
1639 	if (out)
1640 		hdsp->control_register |= HDSP_SPDIFOpticalOut;
1641 	else
1642 		hdsp->control_register &= ~HDSP_SPDIFOpticalOut;
1643 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1644 	return 0;
1645 }
1646 
1647 #define snd_hdsp_info_spdif_bits	snd_ctl_boolean_mono_info
1648 
1649 static int snd_hdsp_get_spdif_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1650 {
1651 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1652 
1653 	ucontrol->value.integer.value[0] = hdsp_spdif_out(hdsp);
1654 	return 0;
1655 }
1656 
1657 static int snd_hdsp_put_spdif_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1658 {
1659 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1660 	int change;
1661 	unsigned int val;
1662 
1663 	if (!snd_hdsp_use_is_exclusive(hdsp))
1664 		return -EBUSY;
1665 	val = ucontrol->value.integer.value[0] & 1;
1666 	spin_lock_irq(&hdsp->lock);
1667 	change = (int)val != hdsp_spdif_out(hdsp);
1668 	hdsp_set_spdif_output(hdsp, val);
1669 	spin_unlock_irq(&hdsp->lock);
1670 	return change;
1671 }
1672 
1673 #define HDSP_SPDIF_PROFESSIONAL(xname, xindex) \
1674 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1675   .info = snd_hdsp_info_spdif_bits, \
1676   .get = snd_hdsp_get_spdif_professional, .put = snd_hdsp_put_spdif_professional }
1677 
1678 static int hdsp_spdif_professional(struct hdsp *hdsp)
1679 {
1680 	return (hdsp->control_register & HDSP_SPDIFProfessional) ? 1 : 0;
1681 }
1682 
1683 static int hdsp_set_spdif_professional(struct hdsp *hdsp, int val)
1684 {
1685 	if (val)
1686 		hdsp->control_register |= HDSP_SPDIFProfessional;
1687 	else
1688 		hdsp->control_register &= ~HDSP_SPDIFProfessional;
1689 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1690 	return 0;
1691 }
1692 
1693 static int snd_hdsp_get_spdif_professional(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1694 {
1695 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1696 
1697 	ucontrol->value.integer.value[0] = hdsp_spdif_professional(hdsp);
1698 	return 0;
1699 }
1700 
1701 static int snd_hdsp_put_spdif_professional(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1702 {
1703 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1704 	int change;
1705 	unsigned int val;
1706 
1707 	if (!snd_hdsp_use_is_exclusive(hdsp))
1708 		return -EBUSY;
1709 	val = ucontrol->value.integer.value[0] & 1;
1710 	spin_lock_irq(&hdsp->lock);
1711 	change = (int)val != hdsp_spdif_professional(hdsp);
1712 	hdsp_set_spdif_professional(hdsp, val);
1713 	spin_unlock_irq(&hdsp->lock);
1714 	return change;
1715 }
1716 
1717 #define HDSP_SPDIF_EMPHASIS(xname, xindex) \
1718 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1719   .info = snd_hdsp_info_spdif_bits, \
1720   .get = snd_hdsp_get_spdif_emphasis, .put = snd_hdsp_put_spdif_emphasis }
1721 
1722 static int hdsp_spdif_emphasis(struct hdsp *hdsp)
1723 {
1724 	return (hdsp->control_register & HDSP_SPDIFEmphasis) ? 1 : 0;
1725 }
1726 
1727 static int hdsp_set_spdif_emphasis(struct hdsp *hdsp, int val)
1728 {
1729 	if (val)
1730 		hdsp->control_register |= HDSP_SPDIFEmphasis;
1731 	else
1732 		hdsp->control_register &= ~HDSP_SPDIFEmphasis;
1733 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1734 	return 0;
1735 }
1736 
1737 static int snd_hdsp_get_spdif_emphasis(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1738 {
1739 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1740 
1741 	ucontrol->value.integer.value[0] = hdsp_spdif_emphasis(hdsp);
1742 	return 0;
1743 }
1744 
1745 static int snd_hdsp_put_spdif_emphasis(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1746 {
1747 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1748 	int change;
1749 	unsigned int val;
1750 
1751 	if (!snd_hdsp_use_is_exclusive(hdsp))
1752 		return -EBUSY;
1753 	val = ucontrol->value.integer.value[0] & 1;
1754 	spin_lock_irq(&hdsp->lock);
1755 	change = (int)val != hdsp_spdif_emphasis(hdsp);
1756 	hdsp_set_spdif_emphasis(hdsp, val);
1757 	spin_unlock_irq(&hdsp->lock);
1758 	return change;
1759 }
1760 
1761 #define HDSP_SPDIF_NON_AUDIO(xname, xindex) \
1762 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1763   .info = snd_hdsp_info_spdif_bits, \
1764   .get = snd_hdsp_get_spdif_nonaudio, .put = snd_hdsp_put_spdif_nonaudio }
1765 
1766 static int hdsp_spdif_nonaudio(struct hdsp *hdsp)
1767 {
1768 	return (hdsp->control_register & HDSP_SPDIFNonAudio) ? 1 : 0;
1769 }
1770 
1771 static int hdsp_set_spdif_nonaudio(struct hdsp *hdsp, int val)
1772 {
1773 	if (val)
1774 		hdsp->control_register |= HDSP_SPDIFNonAudio;
1775 	else
1776 		hdsp->control_register &= ~HDSP_SPDIFNonAudio;
1777 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1778 	return 0;
1779 }
1780 
1781 static int snd_hdsp_get_spdif_nonaudio(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1782 {
1783 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1784 
1785 	ucontrol->value.integer.value[0] = hdsp_spdif_nonaudio(hdsp);
1786 	return 0;
1787 }
1788 
1789 static int snd_hdsp_put_spdif_nonaudio(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1790 {
1791 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1792 	int change;
1793 	unsigned int val;
1794 
1795 	if (!snd_hdsp_use_is_exclusive(hdsp))
1796 		return -EBUSY;
1797 	val = ucontrol->value.integer.value[0] & 1;
1798 	spin_lock_irq(&hdsp->lock);
1799 	change = (int)val != hdsp_spdif_nonaudio(hdsp);
1800 	hdsp_set_spdif_nonaudio(hdsp, val);
1801 	spin_unlock_irq(&hdsp->lock);
1802 	return change;
1803 }
1804 
1805 #define HDSP_SPDIF_SAMPLE_RATE(xname, xindex) \
1806 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1807   .name = xname, \
1808   .index = xindex, \
1809   .access = SNDRV_CTL_ELEM_ACCESS_READ, \
1810   .info = snd_hdsp_info_spdif_sample_rate, \
1811   .get = snd_hdsp_get_spdif_sample_rate \
1812 }
1813 
1814 static int snd_hdsp_info_spdif_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1815 {
1816 	static char *texts[] = {"32000", "44100", "48000", "64000", "88200", "96000", "None", "128000", "176400", "192000"};
1817 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1818 
1819 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1820 	uinfo->count = 1;
1821 	uinfo->value.enumerated.items = (hdsp->io_type == H9632) ? 10 : 7;
1822 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
1823 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
1824 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1825 	return 0;
1826 }
1827 
1828 static int snd_hdsp_get_spdif_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1829 {
1830 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1831 
1832 	switch (hdsp_spdif_sample_rate(hdsp)) {
1833 	case 32000:
1834 		ucontrol->value.enumerated.item[0] = 0;
1835 		break;
1836 	case 44100:
1837 		ucontrol->value.enumerated.item[0] = 1;
1838 		break;
1839 	case 48000:
1840 		ucontrol->value.enumerated.item[0] = 2;
1841 		break;
1842 	case 64000:
1843 		ucontrol->value.enumerated.item[0] = 3;
1844 		break;
1845 	case 88200:
1846 		ucontrol->value.enumerated.item[0] = 4;
1847 		break;
1848 	case 96000:
1849 		ucontrol->value.enumerated.item[0] = 5;
1850 		break;
1851 	case 128000:
1852 		ucontrol->value.enumerated.item[0] = 7;
1853 		break;
1854 	case 176400:
1855 		ucontrol->value.enumerated.item[0] = 8;
1856 		break;
1857 	case 192000:
1858 		ucontrol->value.enumerated.item[0] = 9;
1859 		break;
1860 	default:
1861 		ucontrol->value.enumerated.item[0] = 6;
1862 	}
1863 	return 0;
1864 }
1865 
1866 #define HDSP_SYSTEM_SAMPLE_RATE(xname, xindex) \
1867 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1868   .name = xname, \
1869   .index = xindex, \
1870   .access = SNDRV_CTL_ELEM_ACCESS_READ, \
1871   .info = snd_hdsp_info_system_sample_rate, \
1872   .get = snd_hdsp_get_system_sample_rate \
1873 }
1874 
1875 static int snd_hdsp_info_system_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1876 {
1877 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1878 	uinfo->count = 1;
1879 	return 0;
1880 }
1881 
1882 static int snd_hdsp_get_system_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1883 {
1884 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1885 
1886 	ucontrol->value.enumerated.item[0] = hdsp->system_sample_rate;
1887 	return 0;
1888 }
1889 
1890 #define HDSP_AUTOSYNC_SAMPLE_RATE(xname, xindex) \
1891 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1892   .name = xname, \
1893   .index = xindex, \
1894   .access = SNDRV_CTL_ELEM_ACCESS_READ, \
1895   .info = snd_hdsp_info_autosync_sample_rate, \
1896   .get = snd_hdsp_get_autosync_sample_rate \
1897 }
1898 
1899 static int snd_hdsp_info_autosync_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1900 {
1901 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1902 	static char *texts[] = {"32000", "44100", "48000", "64000", "88200", "96000", "None", "128000", "176400", "192000"};
1903 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1904 	uinfo->count = 1;
1905 	uinfo->value.enumerated.items = (hdsp->io_type == H9632) ? 10 : 7 ;
1906 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
1907 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
1908 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1909 	return 0;
1910 }
1911 
1912 static int snd_hdsp_get_autosync_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1913 {
1914 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1915 
1916 	switch (hdsp_external_sample_rate(hdsp)) {
1917 	case 32000:
1918 		ucontrol->value.enumerated.item[0] = 0;
1919 		break;
1920 	case 44100:
1921 		ucontrol->value.enumerated.item[0] = 1;
1922 		break;
1923 	case 48000:
1924 		ucontrol->value.enumerated.item[0] = 2;
1925 		break;
1926 	case 64000:
1927 		ucontrol->value.enumerated.item[0] = 3;
1928 		break;
1929 	case 88200:
1930 		ucontrol->value.enumerated.item[0] = 4;
1931 		break;
1932 	case 96000:
1933 		ucontrol->value.enumerated.item[0] = 5;
1934 		break;
1935 	case 128000:
1936 		ucontrol->value.enumerated.item[0] = 7;
1937 		break;
1938 	case 176400:
1939 		ucontrol->value.enumerated.item[0] = 8;
1940 		break;
1941 	case 192000:
1942 		ucontrol->value.enumerated.item[0] = 9;
1943 		break;
1944 	default:
1945 		ucontrol->value.enumerated.item[0] = 6;
1946 	}
1947 	return 0;
1948 }
1949 
1950 #define HDSP_SYSTEM_CLOCK_MODE(xname, xindex) \
1951 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1952   .name = xname, \
1953   .index = xindex, \
1954   .access = SNDRV_CTL_ELEM_ACCESS_READ, \
1955   .info = snd_hdsp_info_system_clock_mode, \
1956   .get = snd_hdsp_get_system_clock_mode \
1957 }
1958 
1959 static int hdsp_system_clock_mode(struct hdsp *hdsp)
1960 {
1961 	if (hdsp->control_register & HDSP_ClockModeMaster)
1962 		return 0;
1963 	else if (hdsp_external_sample_rate(hdsp) != hdsp->system_sample_rate)
1964 			return 0;
1965 	return 1;
1966 }
1967 
1968 static int snd_hdsp_info_system_clock_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1969 {
1970 	static char *texts[] = {"Master", "Slave" };
1971 
1972 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1973 	uinfo->count = 1;
1974 	uinfo->value.enumerated.items = 2;
1975 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
1976 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
1977 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1978 	return 0;
1979 }
1980 
1981 static int snd_hdsp_get_system_clock_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1982 {
1983 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1984 
1985 	ucontrol->value.enumerated.item[0] = hdsp_system_clock_mode(hdsp);
1986 	return 0;
1987 }
1988 
1989 #define HDSP_CLOCK_SOURCE(xname, xindex) \
1990 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1991   .name = xname, \
1992   .index = xindex, \
1993   .info = snd_hdsp_info_clock_source, \
1994   .get = snd_hdsp_get_clock_source, \
1995   .put = snd_hdsp_put_clock_source \
1996 }
1997 
1998 static int hdsp_clock_source(struct hdsp *hdsp)
1999 {
2000 	if (hdsp->control_register & HDSP_ClockModeMaster) {
2001 		switch (hdsp->system_sample_rate) {
2002 		case 32000:
2003 			return 1;
2004 		case 44100:
2005 			return 2;
2006 		case 48000:
2007 			return 3;
2008 		case 64000:
2009 			return 4;
2010 		case 88200:
2011 			return 5;
2012 		case 96000:
2013 			return 6;
2014 		case 128000:
2015 			return 7;
2016 		case 176400:
2017 			return 8;
2018 		case 192000:
2019 			return 9;
2020 		default:
2021 			return 3;
2022 		}
2023 	} else {
2024 		return 0;
2025 	}
2026 }
2027 
2028 static int hdsp_set_clock_source(struct hdsp *hdsp, int mode)
2029 {
2030 	int rate;
2031 	switch (mode) {
2032 	case HDSP_CLOCK_SOURCE_AUTOSYNC:
2033 		if (hdsp_external_sample_rate(hdsp) != 0) {
2034 		    if (!hdsp_set_rate(hdsp, hdsp_external_sample_rate(hdsp), 1)) {
2035 			hdsp->control_register &= ~HDSP_ClockModeMaster;
2036 			hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2037 			return 0;
2038 		    }
2039 		}
2040 		return -1;
2041 	case HDSP_CLOCK_SOURCE_INTERNAL_32KHZ:
2042 		rate = 32000;
2043 		break;
2044 	case HDSP_CLOCK_SOURCE_INTERNAL_44_1KHZ:
2045 		rate = 44100;
2046 		break;
2047 	case HDSP_CLOCK_SOURCE_INTERNAL_48KHZ:
2048 		rate = 48000;
2049 		break;
2050 	case HDSP_CLOCK_SOURCE_INTERNAL_64KHZ:
2051 		rate = 64000;
2052 		break;
2053 	case HDSP_CLOCK_SOURCE_INTERNAL_88_2KHZ:
2054 		rate = 88200;
2055 		break;
2056 	case HDSP_CLOCK_SOURCE_INTERNAL_96KHZ:
2057 		rate = 96000;
2058 		break;
2059 	case HDSP_CLOCK_SOURCE_INTERNAL_128KHZ:
2060 		rate = 128000;
2061 		break;
2062 	case HDSP_CLOCK_SOURCE_INTERNAL_176_4KHZ:
2063 		rate = 176400;
2064 		break;
2065 	case HDSP_CLOCK_SOURCE_INTERNAL_192KHZ:
2066 		rate = 192000;
2067 		break;
2068 	default:
2069 		rate = 48000;
2070 	}
2071 	hdsp->control_register |= HDSP_ClockModeMaster;
2072 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2073 	hdsp_set_rate(hdsp, rate, 1);
2074 	return 0;
2075 }
2076 
2077 static int snd_hdsp_info_clock_source(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2078 {
2079 	static char *texts[] = {"AutoSync", "Internal 32.0 kHz", "Internal 44.1 kHz", "Internal 48.0 kHz", "Internal 64.0 kHz", "Internal 88.2 kHz", "Internal 96.0 kHz", "Internal 128 kHz", "Internal 176.4 kHz", "Internal 192.0 KHz" };
2080 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2081 
2082 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2083 	uinfo->count = 1;
2084 	if (hdsp->io_type == H9632)
2085 	    uinfo->value.enumerated.items = 10;
2086 	else
2087 	    uinfo->value.enumerated.items = 7;
2088 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2089 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2090 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2091 	return 0;
2092 }
2093 
2094 static int snd_hdsp_get_clock_source(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2095 {
2096 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2097 
2098 	ucontrol->value.enumerated.item[0] = hdsp_clock_source(hdsp);
2099 	return 0;
2100 }
2101 
2102 static int snd_hdsp_put_clock_source(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2103 {
2104 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2105 	int change;
2106 	int val;
2107 
2108 	if (!snd_hdsp_use_is_exclusive(hdsp))
2109 		return -EBUSY;
2110 	val = ucontrol->value.enumerated.item[0];
2111 	if (val < 0) val = 0;
2112 	if (hdsp->io_type == H9632) {
2113 		if (val > 9)
2114 			val = 9;
2115 	} else {
2116 		if (val > 6)
2117 			val = 6;
2118 	}
2119 	spin_lock_irq(&hdsp->lock);
2120 	if (val != hdsp_clock_source(hdsp))
2121 		change = (hdsp_set_clock_source(hdsp, val) == 0) ? 1 : 0;
2122 	else
2123 		change = 0;
2124 	spin_unlock_irq(&hdsp->lock);
2125 	return change;
2126 }
2127 
2128 #define snd_hdsp_info_clock_source_lock		snd_ctl_boolean_mono_info
2129 
2130 static int snd_hdsp_get_clock_source_lock(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2131 {
2132 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2133 
2134 	ucontrol->value.integer.value[0] = hdsp->clock_source_locked;
2135 	return 0;
2136 }
2137 
2138 static int snd_hdsp_put_clock_source_lock(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2139 {
2140 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2141 	int change;
2142 
2143 	change = (int)ucontrol->value.integer.value[0] != hdsp->clock_source_locked;
2144 	if (change)
2145 		hdsp->clock_source_locked = !!ucontrol->value.integer.value[0];
2146 	return change;
2147 }
2148 
2149 #define HDSP_DA_GAIN(xname, xindex) \
2150 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2151   .name = xname, \
2152   .index = xindex, \
2153   .info = snd_hdsp_info_da_gain, \
2154   .get = snd_hdsp_get_da_gain, \
2155   .put = snd_hdsp_put_da_gain \
2156 }
2157 
2158 static int hdsp_da_gain(struct hdsp *hdsp)
2159 {
2160 	switch (hdsp->control_register & HDSP_DAGainMask) {
2161 	case HDSP_DAGainHighGain:
2162 		return 0;
2163 	case HDSP_DAGainPlus4dBu:
2164 		return 1;
2165 	case HDSP_DAGainMinus10dBV:
2166 		return 2;
2167 	default:
2168 		return 1;
2169 	}
2170 }
2171 
2172 static int hdsp_set_da_gain(struct hdsp *hdsp, int mode)
2173 {
2174 	hdsp->control_register &= ~HDSP_DAGainMask;
2175 	switch (mode) {
2176 	case 0:
2177 		hdsp->control_register |= HDSP_DAGainHighGain;
2178 		break;
2179 	case 1:
2180 		hdsp->control_register |= HDSP_DAGainPlus4dBu;
2181 		break;
2182 	case 2:
2183 		hdsp->control_register |= HDSP_DAGainMinus10dBV;
2184 		break;
2185 	default:
2186 		return -1;
2187 
2188 	}
2189 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2190 	return 0;
2191 }
2192 
2193 static int snd_hdsp_info_da_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2194 {
2195 	static char *texts[] = {"Hi Gain", "+4 dBu", "-10 dbV"};
2196 
2197 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2198 	uinfo->count = 1;
2199 	uinfo->value.enumerated.items = 3;
2200 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2201 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2202 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2203 	return 0;
2204 }
2205 
2206 static int snd_hdsp_get_da_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2207 {
2208 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2209 
2210 	ucontrol->value.enumerated.item[0] = hdsp_da_gain(hdsp);
2211 	return 0;
2212 }
2213 
2214 static int snd_hdsp_put_da_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2215 {
2216 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2217 	int change;
2218 	int val;
2219 
2220 	if (!snd_hdsp_use_is_exclusive(hdsp))
2221 		return -EBUSY;
2222 	val = ucontrol->value.enumerated.item[0];
2223 	if (val < 0) val = 0;
2224 	if (val > 2) val = 2;
2225 	spin_lock_irq(&hdsp->lock);
2226 	if (val != hdsp_da_gain(hdsp))
2227 		change = (hdsp_set_da_gain(hdsp, val) == 0) ? 1 : 0;
2228 	else
2229 		change = 0;
2230 	spin_unlock_irq(&hdsp->lock);
2231 	return change;
2232 }
2233 
2234 #define HDSP_AD_GAIN(xname, xindex) \
2235 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2236   .name = xname, \
2237   .index = xindex, \
2238   .info = snd_hdsp_info_ad_gain, \
2239   .get = snd_hdsp_get_ad_gain, \
2240   .put = snd_hdsp_put_ad_gain \
2241 }
2242 
2243 static int hdsp_ad_gain(struct hdsp *hdsp)
2244 {
2245 	switch (hdsp->control_register & HDSP_ADGainMask) {
2246 	case HDSP_ADGainMinus10dBV:
2247 		return 0;
2248 	case HDSP_ADGainPlus4dBu:
2249 		return 1;
2250 	case HDSP_ADGainLowGain:
2251 		return 2;
2252 	default:
2253 		return 1;
2254 	}
2255 }
2256 
2257 static int hdsp_set_ad_gain(struct hdsp *hdsp, int mode)
2258 {
2259 	hdsp->control_register &= ~HDSP_ADGainMask;
2260 	switch (mode) {
2261 	case 0:
2262 		hdsp->control_register |= HDSP_ADGainMinus10dBV;
2263 		break;
2264 	case 1:
2265 		hdsp->control_register |= HDSP_ADGainPlus4dBu;
2266 		break;
2267 	case 2:
2268 		hdsp->control_register |= HDSP_ADGainLowGain;
2269 		break;
2270 	default:
2271 		return -1;
2272 
2273 	}
2274 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2275 	return 0;
2276 }
2277 
2278 static int snd_hdsp_info_ad_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2279 {
2280 	static char *texts[] = {"-10 dBV", "+4 dBu", "Lo Gain"};
2281 
2282 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2283 	uinfo->count = 1;
2284 	uinfo->value.enumerated.items = 3;
2285 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2286 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2287 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2288 	return 0;
2289 }
2290 
2291 static int snd_hdsp_get_ad_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2292 {
2293 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2294 
2295 	ucontrol->value.enumerated.item[0] = hdsp_ad_gain(hdsp);
2296 	return 0;
2297 }
2298 
2299 static int snd_hdsp_put_ad_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2300 {
2301 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2302 	int change;
2303 	int val;
2304 
2305 	if (!snd_hdsp_use_is_exclusive(hdsp))
2306 		return -EBUSY;
2307 	val = ucontrol->value.enumerated.item[0];
2308 	if (val < 0) val = 0;
2309 	if (val > 2) val = 2;
2310 	spin_lock_irq(&hdsp->lock);
2311 	if (val != hdsp_ad_gain(hdsp))
2312 		change = (hdsp_set_ad_gain(hdsp, val) == 0) ? 1 : 0;
2313 	else
2314 		change = 0;
2315 	spin_unlock_irq(&hdsp->lock);
2316 	return change;
2317 }
2318 
2319 #define HDSP_PHONE_GAIN(xname, xindex) \
2320 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2321   .name = xname, \
2322   .index = xindex, \
2323   .info = snd_hdsp_info_phone_gain, \
2324   .get = snd_hdsp_get_phone_gain, \
2325   .put = snd_hdsp_put_phone_gain \
2326 }
2327 
2328 static int hdsp_phone_gain(struct hdsp *hdsp)
2329 {
2330 	switch (hdsp->control_register & HDSP_PhoneGainMask) {
2331 	case HDSP_PhoneGain0dB:
2332 		return 0;
2333 	case HDSP_PhoneGainMinus6dB:
2334 		return 1;
2335 	case HDSP_PhoneGainMinus12dB:
2336 		return 2;
2337 	default:
2338 		return 0;
2339 	}
2340 }
2341 
2342 static int hdsp_set_phone_gain(struct hdsp *hdsp, int mode)
2343 {
2344 	hdsp->control_register &= ~HDSP_PhoneGainMask;
2345 	switch (mode) {
2346 	case 0:
2347 		hdsp->control_register |= HDSP_PhoneGain0dB;
2348 		break;
2349 	case 1:
2350 		hdsp->control_register |= HDSP_PhoneGainMinus6dB;
2351 		break;
2352 	case 2:
2353 		hdsp->control_register |= HDSP_PhoneGainMinus12dB;
2354 		break;
2355 	default:
2356 		return -1;
2357 
2358 	}
2359 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2360 	return 0;
2361 }
2362 
2363 static int snd_hdsp_info_phone_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2364 {
2365 	static char *texts[] = {"0 dB", "-6 dB", "-12 dB"};
2366 
2367 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2368 	uinfo->count = 1;
2369 	uinfo->value.enumerated.items = 3;
2370 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2371 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2372 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2373 	return 0;
2374 }
2375 
2376 static int snd_hdsp_get_phone_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2377 {
2378 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2379 
2380 	ucontrol->value.enumerated.item[0] = hdsp_phone_gain(hdsp);
2381 	return 0;
2382 }
2383 
2384 static int snd_hdsp_put_phone_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2385 {
2386 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2387 	int change;
2388 	int val;
2389 
2390 	if (!snd_hdsp_use_is_exclusive(hdsp))
2391 		return -EBUSY;
2392 	val = ucontrol->value.enumerated.item[0];
2393 	if (val < 0) val = 0;
2394 	if (val > 2) val = 2;
2395 	spin_lock_irq(&hdsp->lock);
2396 	if (val != hdsp_phone_gain(hdsp))
2397 		change = (hdsp_set_phone_gain(hdsp, val) == 0) ? 1 : 0;
2398 	else
2399 		change = 0;
2400 	spin_unlock_irq(&hdsp->lock);
2401 	return change;
2402 }
2403 
2404 #define HDSP_XLR_BREAKOUT_CABLE(xname, xindex) \
2405 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2406   .name = xname, \
2407   .index = xindex, \
2408   .info = snd_hdsp_info_xlr_breakout_cable, \
2409   .get = snd_hdsp_get_xlr_breakout_cable, \
2410   .put = snd_hdsp_put_xlr_breakout_cable \
2411 }
2412 
2413 static int hdsp_xlr_breakout_cable(struct hdsp *hdsp)
2414 {
2415 	if (hdsp->control_register & HDSP_XLRBreakoutCable)
2416 		return 1;
2417 	return 0;
2418 }
2419 
2420 static int hdsp_set_xlr_breakout_cable(struct hdsp *hdsp, int mode)
2421 {
2422 	if (mode)
2423 		hdsp->control_register |= HDSP_XLRBreakoutCable;
2424 	else
2425 		hdsp->control_register &= ~HDSP_XLRBreakoutCable;
2426 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2427 	return 0;
2428 }
2429 
2430 #define snd_hdsp_info_xlr_breakout_cable	snd_ctl_boolean_mono_info
2431 
2432 static int snd_hdsp_get_xlr_breakout_cable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2433 {
2434 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2435 
2436 	ucontrol->value.enumerated.item[0] = hdsp_xlr_breakout_cable(hdsp);
2437 	return 0;
2438 }
2439 
2440 static int snd_hdsp_put_xlr_breakout_cable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2441 {
2442 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2443 	int change;
2444 	int val;
2445 
2446 	if (!snd_hdsp_use_is_exclusive(hdsp))
2447 		return -EBUSY;
2448 	val = ucontrol->value.integer.value[0] & 1;
2449 	spin_lock_irq(&hdsp->lock);
2450 	change = (int)val != hdsp_xlr_breakout_cable(hdsp);
2451 	hdsp_set_xlr_breakout_cable(hdsp, val);
2452 	spin_unlock_irq(&hdsp->lock);
2453 	return change;
2454 }
2455 
2456 /* (De)activates old RME Analog Extension Board
2457    These are connected to the internal ADAT connector
2458    Switching this on desactivates external ADAT
2459 */
2460 #define HDSP_AEB(xname, xindex) \
2461 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2462   .name = xname, \
2463   .index = xindex, \
2464   .info = snd_hdsp_info_aeb, \
2465   .get = snd_hdsp_get_aeb, \
2466   .put = snd_hdsp_put_aeb \
2467 }
2468 
2469 static int hdsp_aeb(struct hdsp *hdsp)
2470 {
2471 	if (hdsp->control_register & HDSP_AnalogExtensionBoard)
2472 		return 1;
2473 	return 0;
2474 }
2475 
2476 static int hdsp_set_aeb(struct hdsp *hdsp, int mode)
2477 {
2478 	if (mode)
2479 		hdsp->control_register |= HDSP_AnalogExtensionBoard;
2480 	else
2481 		hdsp->control_register &= ~HDSP_AnalogExtensionBoard;
2482 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2483 	return 0;
2484 }
2485 
2486 #define snd_hdsp_info_aeb		snd_ctl_boolean_mono_info
2487 
2488 static int snd_hdsp_get_aeb(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2489 {
2490 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2491 
2492 	ucontrol->value.enumerated.item[0] = hdsp_aeb(hdsp);
2493 	return 0;
2494 }
2495 
2496 static int snd_hdsp_put_aeb(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2497 {
2498 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2499 	int change;
2500 	int val;
2501 
2502 	if (!snd_hdsp_use_is_exclusive(hdsp))
2503 		return -EBUSY;
2504 	val = ucontrol->value.integer.value[0] & 1;
2505 	spin_lock_irq(&hdsp->lock);
2506 	change = (int)val != hdsp_aeb(hdsp);
2507 	hdsp_set_aeb(hdsp, val);
2508 	spin_unlock_irq(&hdsp->lock);
2509 	return change;
2510 }
2511 
2512 #define HDSP_PREF_SYNC_REF(xname, xindex) \
2513 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2514   .name = xname, \
2515   .index = xindex, \
2516   .info = snd_hdsp_info_pref_sync_ref, \
2517   .get = snd_hdsp_get_pref_sync_ref, \
2518   .put = snd_hdsp_put_pref_sync_ref \
2519 }
2520 
2521 static int hdsp_pref_sync_ref(struct hdsp *hdsp)
2522 {
2523 	/* Notice that this looks at the requested sync source,
2524 	   not the one actually in use.
2525 	*/
2526 
2527 	switch (hdsp->control_register & HDSP_SyncRefMask) {
2528 	case HDSP_SyncRef_ADAT1:
2529 		return HDSP_SYNC_FROM_ADAT1;
2530 	case HDSP_SyncRef_ADAT2:
2531 		return HDSP_SYNC_FROM_ADAT2;
2532 	case HDSP_SyncRef_ADAT3:
2533 		return HDSP_SYNC_FROM_ADAT3;
2534 	case HDSP_SyncRef_SPDIF:
2535 		return HDSP_SYNC_FROM_SPDIF;
2536 	case HDSP_SyncRef_WORD:
2537 		return HDSP_SYNC_FROM_WORD;
2538 	case HDSP_SyncRef_ADAT_SYNC:
2539 		return HDSP_SYNC_FROM_ADAT_SYNC;
2540 	default:
2541 		return HDSP_SYNC_FROM_WORD;
2542 	}
2543 	return 0;
2544 }
2545 
2546 static int hdsp_set_pref_sync_ref(struct hdsp *hdsp, int pref)
2547 {
2548 	hdsp->control_register &= ~HDSP_SyncRefMask;
2549 	switch (pref) {
2550 	case HDSP_SYNC_FROM_ADAT1:
2551 		hdsp->control_register &= ~HDSP_SyncRefMask; /* clear SyncRef bits */
2552 		break;
2553 	case HDSP_SYNC_FROM_ADAT2:
2554 		hdsp->control_register |= HDSP_SyncRef_ADAT2;
2555 		break;
2556 	case HDSP_SYNC_FROM_ADAT3:
2557 		hdsp->control_register |= HDSP_SyncRef_ADAT3;
2558 		break;
2559 	case HDSP_SYNC_FROM_SPDIF:
2560 		hdsp->control_register |= HDSP_SyncRef_SPDIF;
2561 		break;
2562 	case HDSP_SYNC_FROM_WORD:
2563 		hdsp->control_register |= HDSP_SyncRef_WORD;
2564 		break;
2565 	case HDSP_SYNC_FROM_ADAT_SYNC:
2566 		hdsp->control_register |= HDSP_SyncRef_ADAT_SYNC;
2567 		break;
2568 	default:
2569 		return -1;
2570 	}
2571 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2572 	return 0;
2573 }
2574 
2575 static int snd_hdsp_info_pref_sync_ref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2576 {
2577 	static char *texts[] = {"Word", "IEC958", "ADAT1", "ADAT Sync", "ADAT2", "ADAT3" };
2578 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2579 
2580 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2581 	uinfo->count = 1;
2582 
2583 	switch (hdsp->io_type) {
2584 	case Digiface:
2585 	case H9652:
2586 		uinfo->value.enumerated.items = 6;
2587 		break;
2588 	case Multiface:
2589 		uinfo->value.enumerated.items = 4;
2590 		break;
2591 	case H9632:
2592 		uinfo->value.enumerated.items = 3;
2593 		break;
2594 	default:
2595 		uinfo->value.enumerated.items = 0;
2596 		break;
2597 	}
2598 
2599 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2600 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2601 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2602 	return 0;
2603 }
2604 
2605 static int snd_hdsp_get_pref_sync_ref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2606 {
2607 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2608 
2609 	ucontrol->value.enumerated.item[0] = hdsp_pref_sync_ref(hdsp);
2610 	return 0;
2611 }
2612 
2613 static int snd_hdsp_put_pref_sync_ref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2614 {
2615 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2616 	int change, max;
2617 	unsigned int val;
2618 
2619 	if (!snd_hdsp_use_is_exclusive(hdsp))
2620 		return -EBUSY;
2621 
2622 	switch (hdsp->io_type) {
2623 	case Digiface:
2624 	case H9652:
2625 		max = 6;
2626 		break;
2627 	case Multiface:
2628 		max = 4;
2629 		break;
2630 	case H9632:
2631 		max = 3;
2632 		break;
2633 	default:
2634 		return -EIO;
2635 	}
2636 
2637 	val = ucontrol->value.enumerated.item[0] % max;
2638 	spin_lock_irq(&hdsp->lock);
2639 	change = (int)val != hdsp_pref_sync_ref(hdsp);
2640 	hdsp_set_pref_sync_ref(hdsp, val);
2641 	spin_unlock_irq(&hdsp->lock);
2642 	return change;
2643 }
2644 
2645 #define HDSP_AUTOSYNC_REF(xname, xindex) \
2646 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2647   .name = xname, \
2648   .index = xindex, \
2649   .access = SNDRV_CTL_ELEM_ACCESS_READ, \
2650   .info = snd_hdsp_info_autosync_ref, \
2651   .get = snd_hdsp_get_autosync_ref, \
2652 }
2653 
2654 static int hdsp_autosync_ref(struct hdsp *hdsp)
2655 {
2656 	/* This looks at the autosync selected sync reference */
2657 	unsigned int status2 = hdsp_read(hdsp, HDSP_status2Register);
2658 
2659 	switch (status2 & HDSP_SelSyncRefMask) {
2660 	case HDSP_SelSyncRef_WORD:
2661 		return HDSP_AUTOSYNC_FROM_WORD;
2662 	case HDSP_SelSyncRef_ADAT_SYNC:
2663 		return HDSP_AUTOSYNC_FROM_ADAT_SYNC;
2664 	case HDSP_SelSyncRef_SPDIF:
2665 		return HDSP_AUTOSYNC_FROM_SPDIF;
2666 	case HDSP_SelSyncRefMask:
2667 		return HDSP_AUTOSYNC_FROM_NONE;
2668 	case HDSP_SelSyncRef_ADAT1:
2669 		return HDSP_AUTOSYNC_FROM_ADAT1;
2670 	case HDSP_SelSyncRef_ADAT2:
2671 		return HDSP_AUTOSYNC_FROM_ADAT2;
2672 	case HDSP_SelSyncRef_ADAT3:
2673 		return HDSP_AUTOSYNC_FROM_ADAT3;
2674 	default:
2675 		return HDSP_AUTOSYNC_FROM_WORD;
2676 	}
2677 	return 0;
2678 }
2679 
2680 static int snd_hdsp_info_autosync_ref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2681 {
2682 	static char *texts[] = {"Word", "ADAT Sync", "IEC958", "None", "ADAT1", "ADAT2", "ADAT3" };
2683 
2684 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2685 	uinfo->count = 1;
2686 	uinfo->value.enumerated.items = 7;
2687 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2688 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2689 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2690 	return 0;
2691 }
2692 
2693 static int snd_hdsp_get_autosync_ref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2694 {
2695 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2696 
2697 	ucontrol->value.enumerated.item[0] = hdsp_autosync_ref(hdsp);
2698 	return 0;
2699 }
2700 
2701 #define HDSP_LINE_OUT(xname, xindex) \
2702 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2703   .name = xname, \
2704   .index = xindex, \
2705   .info = snd_hdsp_info_line_out, \
2706   .get = snd_hdsp_get_line_out, \
2707   .put = snd_hdsp_put_line_out \
2708 }
2709 
2710 static int hdsp_line_out(struct hdsp *hdsp)
2711 {
2712 	return (hdsp->control_register & HDSP_LineOut) ? 1 : 0;
2713 }
2714 
2715 static int hdsp_set_line_output(struct hdsp *hdsp, int out)
2716 {
2717 	if (out)
2718 		hdsp->control_register |= HDSP_LineOut;
2719 	else
2720 		hdsp->control_register &= ~HDSP_LineOut;
2721 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2722 	return 0;
2723 }
2724 
2725 #define snd_hdsp_info_line_out		snd_ctl_boolean_mono_info
2726 
2727 static int snd_hdsp_get_line_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2728 {
2729 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2730 
2731 	spin_lock_irq(&hdsp->lock);
2732 	ucontrol->value.integer.value[0] = hdsp_line_out(hdsp);
2733 	spin_unlock_irq(&hdsp->lock);
2734 	return 0;
2735 }
2736 
2737 static int snd_hdsp_put_line_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2738 {
2739 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2740 	int change;
2741 	unsigned int val;
2742 
2743 	if (!snd_hdsp_use_is_exclusive(hdsp))
2744 		return -EBUSY;
2745 	val = ucontrol->value.integer.value[0] & 1;
2746 	spin_lock_irq(&hdsp->lock);
2747 	change = (int)val != hdsp_line_out(hdsp);
2748 	hdsp_set_line_output(hdsp, val);
2749 	spin_unlock_irq(&hdsp->lock);
2750 	return change;
2751 }
2752 
2753 #define HDSP_PRECISE_POINTER(xname, xindex) \
2754 { .iface = SNDRV_CTL_ELEM_IFACE_CARD, \
2755   .name = xname, \
2756   .index = xindex, \
2757   .info = snd_hdsp_info_precise_pointer, \
2758   .get = snd_hdsp_get_precise_pointer, \
2759   .put = snd_hdsp_put_precise_pointer \
2760 }
2761 
2762 static int hdsp_set_precise_pointer(struct hdsp *hdsp, int precise)
2763 {
2764 	if (precise)
2765 		hdsp->precise_ptr = 1;
2766 	else
2767 		hdsp->precise_ptr = 0;
2768 	return 0;
2769 }
2770 
2771 #define snd_hdsp_info_precise_pointer		snd_ctl_boolean_mono_info
2772 
2773 static int snd_hdsp_get_precise_pointer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2774 {
2775 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2776 
2777 	spin_lock_irq(&hdsp->lock);
2778 	ucontrol->value.integer.value[0] = hdsp->precise_ptr;
2779 	spin_unlock_irq(&hdsp->lock);
2780 	return 0;
2781 }
2782 
2783 static int snd_hdsp_put_precise_pointer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2784 {
2785 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2786 	int change;
2787 	unsigned int val;
2788 
2789 	if (!snd_hdsp_use_is_exclusive(hdsp))
2790 		return -EBUSY;
2791 	val = ucontrol->value.integer.value[0] & 1;
2792 	spin_lock_irq(&hdsp->lock);
2793 	change = (int)val != hdsp->precise_ptr;
2794 	hdsp_set_precise_pointer(hdsp, val);
2795 	spin_unlock_irq(&hdsp->lock);
2796 	return change;
2797 }
2798 
2799 #define HDSP_USE_MIDI_TASKLET(xname, xindex) \
2800 { .iface = SNDRV_CTL_ELEM_IFACE_CARD, \
2801   .name = xname, \
2802   .index = xindex, \
2803   .info = snd_hdsp_info_use_midi_tasklet, \
2804   .get = snd_hdsp_get_use_midi_tasklet, \
2805   .put = snd_hdsp_put_use_midi_tasklet \
2806 }
2807 
2808 static int hdsp_set_use_midi_tasklet(struct hdsp *hdsp, int use_tasklet)
2809 {
2810 	if (use_tasklet)
2811 		hdsp->use_midi_tasklet = 1;
2812 	else
2813 		hdsp->use_midi_tasklet = 0;
2814 	return 0;
2815 }
2816 
2817 #define snd_hdsp_info_use_midi_tasklet		snd_ctl_boolean_mono_info
2818 
2819 static int snd_hdsp_get_use_midi_tasklet(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2820 {
2821 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2822 
2823 	spin_lock_irq(&hdsp->lock);
2824 	ucontrol->value.integer.value[0] = hdsp->use_midi_tasklet;
2825 	spin_unlock_irq(&hdsp->lock);
2826 	return 0;
2827 }
2828 
2829 static int snd_hdsp_put_use_midi_tasklet(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2830 {
2831 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2832 	int change;
2833 	unsigned int val;
2834 
2835 	if (!snd_hdsp_use_is_exclusive(hdsp))
2836 		return -EBUSY;
2837 	val = ucontrol->value.integer.value[0] & 1;
2838 	spin_lock_irq(&hdsp->lock);
2839 	change = (int)val != hdsp->use_midi_tasklet;
2840 	hdsp_set_use_midi_tasklet(hdsp, val);
2841 	spin_unlock_irq(&hdsp->lock);
2842 	return change;
2843 }
2844 
2845 #define HDSP_MIXER(xname, xindex) \
2846 { .iface = SNDRV_CTL_ELEM_IFACE_HWDEP, \
2847   .name = xname, \
2848   .index = xindex, \
2849   .device = 0, \
2850   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
2851 		 SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
2852   .info = snd_hdsp_info_mixer, \
2853   .get = snd_hdsp_get_mixer, \
2854   .put = snd_hdsp_put_mixer \
2855 }
2856 
2857 static int snd_hdsp_info_mixer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2858 {
2859 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2860 	uinfo->count = 3;
2861 	uinfo->value.integer.min = 0;
2862 	uinfo->value.integer.max = 65536;
2863 	uinfo->value.integer.step = 1;
2864 	return 0;
2865 }
2866 
2867 static int snd_hdsp_get_mixer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2868 {
2869 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2870 	int source;
2871 	int destination;
2872 	int addr;
2873 
2874 	source = ucontrol->value.integer.value[0];
2875 	destination = ucontrol->value.integer.value[1];
2876 
2877 	if (source >= hdsp->max_channels)
2878 		addr = hdsp_playback_to_output_key(hdsp,source-hdsp->max_channels,destination);
2879 	else
2880 		addr = hdsp_input_to_output_key(hdsp,source, destination);
2881 
2882 	spin_lock_irq(&hdsp->lock);
2883 	ucontrol->value.integer.value[2] = hdsp_read_gain (hdsp, addr);
2884 	spin_unlock_irq(&hdsp->lock);
2885 	return 0;
2886 }
2887 
2888 static int snd_hdsp_put_mixer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2889 {
2890 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2891 	int change;
2892 	int source;
2893 	int destination;
2894 	int gain;
2895 	int addr;
2896 
2897 	if (!snd_hdsp_use_is_exclusive(hdsp))
2898 		return -EBUSY;
2899 
2900 	source = ucontrol->value.integer.value[0];
2901 	destination = ucontrol->value.integer.value[1];
2902 
2903 	if (source >= hdsp->max_channels)
2904 		addr = hdsp_playback_to_output_key(hdsp,source-hdsp->max_channels, destination);
2905 	else
2906 		addr = hdsp_input_to_output_key(hdsp,source, destination);
2907 
2908 	gain = ucontrol->value.integer.value[2];
2909 
2910 	spin_lock_irq(&hdsp->lock);
2911 	change = gain != hdsp_read_gain(hdsp, addr);
2912 	if (change)
2913 		hdsp_write_gain(hdsp, addr, gain);
2914 	spin_unlock_irq(&hdsp->lock);
2915 	return change;
2916 }
2917 
2918 #define HDSP_WC_SYNC_CHECK(xname, xindex) \
2919 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2920   .name = xname, \
2921   .index = xindex, \
2922   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
2923   .info = snd_hdsp_info_sync_check, \
2924   .get = snd_hdsp_get_wc_sync_check \
2925 }
2926 
2927 static int snd_hdsp_info_sync_check(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2928 {
2929 	static char *texts[] = {"No Lock", "Lock", "Sync" };
2930 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2931 	uinfo->count = 1;
2932 	uinfo->value.enumerated.items = 3;
2933 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2934 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2935 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2936 	return 0;
2937 }
2938 
2939 static int hdsp_wc_sync_check(struct hdsp *hdsp)
2940 {
2941 	int status2 = hdsp_read(hdsp, HDSP_status2Register);
2942 	if (status2 & HDSP_wc_lock) {
2943 		if (status2 & HDSP_wc_sync)
2944 			return 2;
2945 		else
2946 			 return 1;
2947 	} else
2948 		return 0;
2949 	return 0;
2950 }
2951 
2952 static int snd_hdsp_get_wc_sync_check(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2953 {
2954 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2955 
2956 	ucontrol->value.enumerated.item[0] = hdsp_wc_sync_check(hdsp);
2957 	return 0;
2958 }
2959 
2960 #define HDSP_SPDIF_SYNC_CHECK(xname, xindex) \
2961 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2962   .name = xname, \
2963   .index = xindex, \
2964   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
2965   .info = snd_hdsp_info_sync_check, \
2966   .get = snd_hdsp_get_spdif_sync_check \
2967 }
2968 
2969 static int hdsp_spdif_sync_check(struct hdsp *hdsp)
2970 {
2971 	int status = hdsp_read(hdsp, HDSP_statusRegister);
2972 	if (status & HDSP_SPDIFErrorFlag)
2973 		return 0;
2974 	else {
2975 		if (status & HDSP_SPDIFSync)
2976 			return 2;
2977 		else
2978 			return 1;
2979 	}
2980 	return 0;
2981 }
2982 
2983 static int snd_hdsp_get_spdif_sync_check(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2984 {
2985 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2986 
2987 	ucontrol->value.enumerated.item[0] = hdsp_spdif_sync_check(hdsp);
2988 	return 0;
2989 }
2990 
2991 #define HDSP_ADATSYNC_SYNC_CHECK(xname, xindex) \
2992 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2993   .name = xname, \
2994   .index = xindex, \
2995   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
2996   .info = snd_hdsp_info_sync_check, \
2997   .get = snd_hdsp_get_adatsync_sync_check \
2998 }
2999 
3000 static int hdsp_adatsync_sync_check(struct hdsp *hdsp)
3001 {
3002 	int status = hdsp_read(hdsp, HDSP_statusRegister);
3003 	if (status & HDSP_TimecodeLock) {
3004 		if (status & HDSP_TimecodeSync)
3005 			return 2;
3006 		else
3007 			return 1;
3008 	} else
3009 		return 0;
3010 }
3011 
3012 static int snd_hdsp_get_adatsync_sync_check(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3013 {
3014 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3015 
3016 	ucontrol->value.enumerated.item[0] = hdsp_adatsync_sync_check(hdsp);
3017 	return 0;
3018 }
3019 
3020 #define HDSP_ADAT_SYNC_CHECK \
3021 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
3022   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
3023   .info = snd_hdsp_info_sync_check, \
3024   .get = snd_hdsp_get_adat_sync_check \
3025 }
3026 
3027 static int hdsp_adat_sync_check(struct hdsp *hdsp, int idx)
3028 {
3029 	int status = hdsp_read(hdsp, HDSP_statusRegister);
3030 
3031 	if (status & (HDSP_Lock0>>idx)) {
3032 		if (status & (HDSP_Sync0>>idx))
3033 			return 2;
3034 		else
3035 			return 1;
3036 	} else
3037 		return 0;
3038 }
3039 
3040 static int snd_hdsp_get_adat_sync_check(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3041 {
3042 	int offset;
3043 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3044 
3045 	offset = ucontrol->id.index - 1;
3046 	snd_assert(offset >= 0);
3047 
3048 	switch (hdsp->io_type) {
3049 	case Digiface:
3050 	case H9652:
3051 		if (offset >= 3)
3052 			return -EINVAL;
3053 		break;
3054 	case Multiface:
3055 	case H9632:
3056 		if (offset >= 1)
3057 			return -EINVAL;
3058 		break;
3059 	default:
3060 		return -EIO;
3061 	}
3062 
3063 	ucontrol->value.enumerated.item[0] = hdsp_adat_sync_check(hdsp, offset);
3064 	return 0;
3065 }
3066 
3067 #define HDSP_DDS_OFFSET(xname, xindex) \
3068 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
3069   .name = xname, \
3070   .index = xindex, \
3071   .info = snd_hdsp_info_dds_offset, \
3072   .get = snd_hdsp_get_dds_offset, \
3073   .put = snd_hdsp_put_dds_offset \
3074 }
3075 
3076 static int hdsp_dds_offset(struct hdsp *hdsp)
3077 {
3078 	u64 n;
3079 	u32 r;
3080 	unsigned int dds_value = hdsp->dds_value;
3081 	int system_sample_rate = hdsp->system_sample_rate;
3082 
3083 	if (!dds_value)
3084 		return 0;
3085 
3086 	n = DDS_NUMERATOR;
3087 	/*
3088 	 * dds_value = n / rate
3089 	 * rate = n / dds_value
3090 	 */
3091 	div64_32(&n, dds_value, &r);
3092 	if (system_sample_rate >= 112000)
3093 		n *= 4;
3094 	else if (system_sample_rate >= 56000)
3095 		n *= 2;
3096 	return ((int)n) - system_sample_rate;
3097 }
3098 
3099 static int hdsp_set_dds_offset(struct hdsp *hdsp, int offset_hz)
3100 {
3101 	int rate = hdsp->system_sample_rate + offset_hz;
3102 	hdsp_set_dds_value(hdsp, rate);
3103 	return 0;
3104 }
3105 
3106 static int snd_hdsp_info_dds_offset(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
3107 {
3108 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
3109 	uinfo->count = 1;
3110 	uinfo->value.integer.min = -5000;
3111 	uinfo->value.integer.max = 5000;
3112 	return 0;
3113 }
3114 
3115 static int snd_hdsp_get_dds_offset(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3116 {
3117 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3118 
3119 	ucontrol->value.enumerated.item[0] = hdsp_dds_offset(hdsp);
3120 	return 0;
3121 }
3122 
3123 static int snd_hdsp_put_dds_offset(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3124 {
3125 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3126 	int change;
3127 	int val;
3128 
3129 	if (!snd_hdsp_use_is_exclusive(hdsp))
3130 		return -EBUSY;
3131 	val = ucontrol->value.enumerated.item[0];
3132 	spin_lock_irq(&hdsp->lock);
3133 	if (val != hdsp_dds_offset(hdsp))
3134 		change = (hdsp_set_dds_offset(hdsp, val) == 0) ? 1 : 0;
3135 	else
3136 		change = 0;
3137 	spin_unlock_irq(&hdsp->lock);
3138 	return change;
3139 }
3140 
3141 static struct snd_kcontrol_new snd_hdsp_9632_controls[] = {
3142 HDSP_DA_GAIN("DA Gain", 0),
3143 HDSP_AD_GAIN("AD Gain", 0),
3144 HDSP_PHONE_GAIN("Phones Gain", 0),
3145 HDSP_XLR_BREAKOUT_CABLE("XLR Breakout Cable", 0),
3146 HDSP_DDS_OFFSET("DDS Sample Rate Offset", 0)
3147 };
3148 
3149 static struct snd_kcontrol_new snd_hdsp_controls[] = {
3150 {
3151 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
3152 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
3153 	.info =		snd_hdsp_control_spdif_info,
3154 	.get =		snd_hdsp_control_spdif_get,
3155 	.put =		snd_hdsp_control_spdif_put,
3156 },
3157 {
3158 	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
3159 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
3160 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
3161 	.info =		snd_hdsp_control_spdif_stream_info,
3162 	.get =		snd_hdsp_control_spdif_stream_get,
3163 	.put =		snd_hdsp_control_spdif_stream_put,
3164 },
3165 {
3166 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
3167 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
3168 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
3169 	.info =		snd_hdsp_control_spdif_mask_info,
3170 	.get =		snd_hdsp_control_spdif_mask_get,
3171 	.private_value = IEC958_AES0_NONAUDIO |
3172   			 IEC958_AES0_PROFESSIONAL |
3173 			 IEC958_AES0_CON_EMPHASIS,
3174 },
3175 {
3176 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
3177 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
3178 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
3179 	.info =		snd_hdsp_control_spdif_mask_info,
3180 	.get =		snd_hdsp_control_spdif_mask_get,
3181 	.private_value = IEC958_AES0_NONAUDIO |
3182 			 IEC958_AES0_PROFESSIONAL |
3183 			 IEC958_AES0_PRO_EMPHASIS,
3184 },
3185 HDSP_MIXER("Mixer", 0),
3186 HDSP_SPDIF_IN("IEC958 Input Connector", 0),
3187 HDSP_SPDIF_OUT("IEC958 Output also on ADAT1", 0),
3188 HDSP_SPDIF_PROFESSIONAL("IEC958 Professional Bit", 0),
3189 HDSP_SPDIF_EMPHASIS("IEC958 Emphasis Bit", 0),
3190 HDSP_SPDIF_NON_AUDIO("IEC958 Non-audio Bit", 0),
3191 /* 'Sample Clock Source' complies with the alsa control naming scheme */
3192 HDSP_CLOCK_SOURCE("Sample Clock Source", 0),
3193 {
3194 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
3195 	.name = "Sample Clock Source Locking",
3196 	.info = snd_hdsp_info_clock_source_lock,
3197 	.get = snd_hdsp_get_clock_source_lock,
3198 	.put = snd_hdsp_put_clock_source_lock,
3199 },
3200 HDSP_SYSTEM_CLOCK_MODE("System Clock Mode", 0),
3201 HDSP_PREF_SYNC_REF("Preferred Sync Reference", 0),
3202 HDSP_AUTOSYNC_REF("AutoSync Reference", 0),
3203 HDSP_SPDIF_SAMPLE_RATE("SPDIF Sample Rate", 0),
3204 HDSP_SYSTEM_SAMPLE_RATE("System Sample Rate", 0),
3205 /* 'External Rate' complies with the alsa control naming scheme */
3206 HDSP_AUTOSYNC_SAMPLE_RATE("External Rate", 0),
3207 HDSP_WC_SYNC_CHECK("Word Clock Lock Status", 0),
3208 HDSP_SPDIF_SYNC_CHECK("SPDIF Lock Status", 0),
3209 HDSP_ADATSYNC_SYNC_CHECK("ADAT Sync Lock Status", 0),
3210 HDSP_LINE_OUT("Line Out", 0),
3211 HDSP_PRECISE_POINTER("Precise Pointer", 0),
3212 HDSP_USE_MIDI_TASKLET("Use Midi Tasklet", 0),
3213 };
3214 
3215 static struct snd_kcontrol_new snd_hdsp_96xx_aeb = HDSP_AEB("Analog Extension Board", 0);
3216 static struct snd_kcontrol_new snd_hdsp_adat_sync_check = HDSP_ADAT_SYNC_CHECK;
3217 
3218 static int snd_hdsp_create_controls(struct snd_card *card, struct hdsp *hdsp)
3219 {
3220 	unsigned int idx;
3221 	int err;
3222 	struct snd_kcontrol *kctl;
3223 
3224 	for (idx = 0; idx < ARRAY_SIZE(snd_hdsp_controls); idx++) {
3225 		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_hdsp_controls[idx], hdsp))) < 0)
3226 			return err;
3227 		if (idx == 1)	/* IEC958 (S/PDIF) Stream */
3228 			hdsp->spdif_ctl = kctl;
3229 	}
3230 
3231 	/* ADAT SyncCheck status */
3232 	snd_hdsp_adat_sync_check.name = "ADAT Lock Status";
3233 	snd_hdsp_adat_sync_check.index = 1;
3234 	if ((err = snd_ctl_add (card, kctl = snd_ctl_new1(&snd_hdsp_adat_sync_check, hdsp))))
3235 		return err;
3236 	if (hdsp->io_type == Digiface || hdsp->io_type == H9652) {
3237 		for (idx = 1; idx < 3; ++idx) {
3238 			snd_hdsp_adat_sync_check.index = idx+1;
3239 			if ((err = snd_ctl_add (card, kctl = snd_ctl_new1(&snd_hdsp_adat_sync_check, hdsp))))
3240 				return err;
3241 		}
3242 	}
3243 
3244 	/* DA, AD and Phone gain and XLR breakout cable controls for H9632 cards */
3245 	if (hdsp->io_type == H9632) {
3246 		for (idx = 0; idx < ARRAY_SIZE(snd_hdsp_9632_controls); idx++) {
3247 			if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_hdsp_9632_controls[idx], hdsp))) < 0)
3248 				return err;
3249 		}
3250 	}
3251 
3252 	/* AEB control for H96xx card */
3253 	if (hdsp->io_type == H9632 || hdsp->io_type == H9652) {
3254 		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_hdsp_96xx_aeb, hdsp))) < 0)
3255 				return err;
3256 	}
3257 
3258 	return 0;
3259 }
3260 
3261 /*------------------------------------------------------------
3262    /proc interface
3263  ------------------------------------------------------------*/
3264 
3265 static void
3266 snd_hdsp_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
3267 {
3268 	struct hdsp *hdsp = (struct hdsp *) entry->private_data;
3269 	unsigned int status;
3270 	unsigned int status2;
3271 	char *pref_sync_ref;
3272 	char *autosync_ref;
3273 	char *system_clock_mode;
3274 	char *clock_source;
3275 	int x;
3276 
3277 	if (hdsp_check_for_iobox (hdsp)) {
3278 		snd_iprintf(buffer, "No I/O box connected.\nPlease connect one and upload firmware.\n");
3279 		return;
3280         }
3281 
3282 	if (hdsp_check_for_firmware(hdsp, 0)) {
3283 		if (hdsp->state & HDSP_FirmwareCached) {
3284 			if (snd_hdsp_load_firmware_from_cache(hdsp) != 0) {
3285 				snd_iprintf(buffer, "Firmware loading from cache failed, please upload manually.\n");
3286 				return;
3287 			}
3288 		} else {
3289 			int err = -EINVAL;
3290 #ifdef HDSP_FW_LOADER
3291 			err = hdsp_request_fw_loader(hdsp);
3292 #endif
3293 			if (err < 0) {
3294 				snd_iprintf(buffer,
3295 					    "No firmware loaded nor cached, "
3296 					    "please upload firmware.\n");
3297 				return;
3298 			}
3299 		}
3300 	}
3301 
3302 	status = hdsp_read(hdsp, HDSP_statusRegister);
3303 	status2 = hdsp_read(hdsp, HDSP_status2Register);
3304 
3305 	snd_iprintf(buffer, "%s (Card #%d)\n", hdsp->card_name, hdsp->card->number + 1);
3306 	snd_iprintf(buffer, "Buffers: capture %p playback %p\n",
3307 		    hdsp->capture_buffer, hdsp->playback_buffer);
3308 	snd_iprintf(buffer, "IRQ: %d Registers bus: 0x%lx VM: 0x%lx\n",
3309 		    hdsp->irq, hdsp->port, (unsigned long)hdsp->iobase);
3310 	snd_iprintf(buffer, "Control register: 0x%x\n", hdsp->control_register);
3311 	snd_iprintf(buffer, "Control2 register: 0x%x\n", hdsp->control2_register);
3312 	snd_iprintf(buffer, "Status register: 0x%x\n", status);
3313 	snd_iprintf(buffer, "Status2 register: 0x%x\n", status2);
3314 	snd_iprintf(buffer, "FIFO status: %d\n", hdsp_read(hdsp, HDSP_fifoStatus) & 0xff);
3315 	snd_iprintf(buffer, "MIDI1 Output status: 0x%x\n", hdsp_read(hdsp, HDSP_midiStatusOut0));
3316 	snd_iprintf(buffer, "MIDI1 Input status: 0x%x\n", hdsp_read(hdsp, HDSP_midiStatusIn0));
3317 	snd_iprintf(buffer, "MIDI2 Output status: 0x%x\n", hdsp_read(hdsp, HDSP_midiStatusOut1));
3318 	snd_iprintf(buffer, "MIDI2 Input status: 0x%x\n", hdsp_read(hdsp, HDSP_midiStatusIn1));
3319 	snd_iprintf(buffer, "Use Midi Tasklet: %s\n", hdsp->use_midi_tasklet ? "on" : "off");
3320 
3321 	snd_iprintf(buffer, "\n");
3322 
3323 	x = 1 << (6 + hdsp_decode_latency(hdsp->control_register & HDSP_LatencyMask));
3324 
3325 	snd_iprintf(buffer, "Buffer Size (Latency): %d samples (2 periods of %lu bytes)\n", x, (unsigned long) hdsp->period_bytes);
3326 	snd_iprintf(buffer, "Hardware pointer (frames): %ld\n", hdsp_hw_pointer(hdsp));
3327 	snd_iprintf(buffer, "Precise pointer: %s\n", hdsp->precise_ptr ? "on" : "off");
3328 	snd_iprintf(buffer, "Line out: %s\n", (hdsp->control_register & HDSP_LineOut) ? "on" : "off");
3329 
3330 	snd_iprintf(buffer, "Firmware version: %d\n", (status2&HDSP_version0)|(status2&HDSP_version1)<<1|(status2&HDSP_version2)<<2);
3331 
3332 	snd_iprintf(buffer, "\n");
3333 
3334 
3335 	switch (hdsp_clock_source(hdsp)) {
3336 	case HDSP_CLOCK_SOURCE_AUTOSYNC:
3337 		clock_source = "AutoSync";
3338 		break;
3339 	case HDSP_CLOCK_SOURCE_INTERNAL_32KHZ:
3340 		clock_source = "Internal 32 kHz";
3341 		break;
3342 	case HDSP_CLOCK_SOURCE_INTERNAL_44_1KHZ:
3343 		clock_source = "Internal 44.1 kHz";
3344 		break;
3345 	case HDSP_CLOCK_SOURCE_INTERNAL_48KHZ:
3346 		clock_source = "Internal 48 kHz";
3347 		break;
3348 	case HDSP_CLOCK_SOURCE_INTERNAL_64KHZ:
3349 		clock_source = "Internal 64 kHz";
3350 		break;
3351 	case HDSP_CLOCK_SOURCE_INTERNAL_88_2KHZ:
3352 		clock_source = "Internal 88.2 kHz";
3353 		break;
3354 	case HDSP_CLOCK_SOURCE_INTERNAL_96KHZ:
3355 		clock_source = "Internal 96 kHz";
3356 		break;
3357 	case HDSP_CLOCK_SOURCE_INTERNAL_128KHZ:
3358 		clock_source = "Internal 128 kHz";
3359 		break;
3360 	case HDSP_CLOCK_SOURCE_INTERNAL_176_4KHZ:
3361 		clock_source = "Internal 176.4 kHz";
3362 		break;
3363 		case HDSP_CLOCK_SOURCE_INTERNAL_192KHZ:
3364 		clock_source = "Internal 192 kHz";
3365 		break;
3366 	default:
3367 		clock_source = "Error";
3368 	}
3369 	snd_iprintf (buffer, "Sample Clock Source: %s\n", clock_source);
3370 
3371 	if (hdsp_system_clock_mode(hdsp))
3372 		system_clock_mode = "Slave";
3373 	else
3374 		system_clock_mode = "Master";
3375 
3376 	switch (hdsp_pref_sync_ref (hdsp)) {
3377 	case HDSP_SYNC_FROM_WORD:
3378 		pref_sync_ref = "Word Clock";
3379 		break;
3380 	case HDSP_SYNC_FROM_ADAT_SYNC:
3381 		pref_sync_ref = "ADAT Sync";
3382 		break;
3383 	case HDSP_SYNC_FROM_SPDIF:
3384 		pref_sync_ref = "SPDIF";
3385 		break;
3386 	case HDSP_SYNC_FROM_ADAT1:
3387 		pref_sync_ref = "ADAT1";
3388 		break;
3389 	case HDSP_SYNC_FROM_ADAT2:
3390 		pref_sync_ref = "ADAT2";
3391 		break;
3392 	case HDSP_SYNC_FROM_ADAT3:
3393 		pref_sync_ref = "ADAT3";
3394 		break;
3395 	default:
3396 		pref_sync_ref = "Word Clock";
3397 		break;
3398 	}
3399 	snd_iprintf (buffer, "Preferred Sync Reference: %s\n", pref_sync_ref);
3400 
3401 	switch (hdsp_autosync_ref (hdsp)) {
3402 	case HDSP_AUTOSYNC_FROM_WORD:
3403 		autosync_ref = "Word Clock";
3404 		break;
3405 	case HDSP_AUTOSYNC_FROM_ADAT_SYNC:
3406 		autosync_ref = "ADAT Sync";
3407 		break;
3408 	case HDSP_AUTOSYNC_FROM_SPDIF:
3409 		autosync_ref = "SPDIF";
3410 		break;
3411 	case HDSP_AUTOSYNC_FROM_NONE:
3412 		autosync_ref = "None";
3413 		break;
3414 	case HDSP_AUTOSYNC_FROM_ADAT1:
3415 		autosync_ref = "ADAT1";
3416 		break;
3417 	case HDSP_AUTOSYNC_FROM_ADAT2:
3418 		autosync_ref = "ADAT2";
3419 		break;
3420 	case HDSP_AUTOSYNC_FROM_ADAT3:
3421 		autosync_ref = "ADAT3";
3422 		break;
3423 	default:
3424 		autosync_ref = "---";
3425 		break;
3426 	}
3427 	snd_iprintf (buffer, "AutoSync Reference: %s\n", autosync_ref);
3428 
3429 	snd_iprintf (buffer, "AutoSync Frequency: %d\n", hdsp_external_sample_rate(hdsp));
3430 
3431 	snd_iprintf (buffer, "System Clock Mode: %s\n", system_clock_mode);
3432 
3433 	snd_iprintf (buffer, "System Clock Frequency: %d\n", hdsp->system_sample_rate);
3434 	snd_iprintf (buffer, "System Clock Locked: %s\n", hdsp->clock_source_locked ? "Yes" : "No");
3435 
3436 	snd_iprintf(buffer, "\n");
3437 
3438 	switch (hdsp_spdif_in(hdsp)) {
3439 	case HDSP_SPDIFIN_OPTICAL:
3440 		snd_iprintf(buffer, "IEC958 input: Optical\n");
3441 		break;
3442 	case HDSP_SPDIFIN_COAXIAL:
3443 		snd_iprintf(buffer, "IEC958 input: Coaxial\n");
3444 		break;
3445 	case HDSP_SPDIFIN_INTERNAL:
3446 		snd_iprintf(buffer, "IEC958 input: Internal\n");
3447 		break;
3448 	case HDSP_SPDIFIN_AES:
3449 		snd_iprintf(buffer, "IEC958 input: AES\n");
3450 		break;
3451 	default:
3452 		snd_iprintf(buffer, "IEC958 input: ???\n");
3453 		break;
3454 	}
3455 
3456 	if (hdsp->control_register & HDSP_SPDIFOpticalOut)
3457 		snd_iprintf(buffer, "IEC958 output: Coaxial & ADAT1\n");
3458 	else
3459 		snd_iprintf(buffer, "IEC958 output: Coaxial only\n");
3460 
3461 	if (hdsp->control_register & HDSP_SPDIFProfessional)
3462 		snd_iprintf(buffer, "IEC958 quality: Professional\n");
3463 	else
3464 		snd_iprintf(buffer, "IEC958 quality: Consumer\n");
3465 
3466 	if (hdsp->control_register & HDSP_SPDIFEmphasis)
3467 		snd_iprintf(buffer, "IEC958 emphasis: on\n");
3468 	else
3469 		snd_iprintf(buffer, "IEC958 emphasis: off\n");
3470 
3471 	if (hdsp->control_register & HDSP_SPDIFNonAudio)
3472 		snd_iprintf(buffer, "IEC958 NonAudio: on\n");
3473 	else
3474 		snd_iprintf(buffer, "IEC958 NonAudio: off\n");
3475 	if ((x = hdsp_spdif_sample_rate (hdsp)) != 0)
3476 		snd_iprintf (buffer, "IEC958 sample rate: %d\n", x);
3477 	else
3478 		snd_iprintf (buffer, "IEC958 sample rate: Error flag set\n");
3479 
3480 	snd_iprintf(buffer, "\n");
3481 
3482 	/* Sync Check */
3483 	x = status & HDSP_Sync0;
3484 	if (status & HDSP_Lock0)
3485 		snd_iprintf(buffer, "ADAT1: %s\n", x ? "Sync" : "Lock");
3486 	else
3487 		snd_iprintf(buffer, "ADAT1: No Lock\n");
3488 
3489 	switch (hdsp->io_type) {
3490 	case Digiface:
3491 	case H9652:
3492 		x = status & HDSP_Sync1;
3493 		if (status & HDSP_Lock1)
3494 			snd_iprintf(buffer, "ADAT2: %s\n", x ? "Sync" : "Lock");
3495 		else
3496 			snd_iprintf(buffer, "ADAT2: No Lock\n");
3497 		x = status & HDSP_Sync2;
3498 		if (status & HDSP_Lock2)
3499 			snd_iprintf(buffer, "ADAT3: %s\n", x ? "Sync" : "Lock");
3500 		else
3501 			snd_iprintf(buffer, "ADAT3: No Lock\n");
3502 		break;
3503 	default:
3504 		/* relax */
3505 		break;
3506 	}
3507 
3508 	x = status & HDSP_SPDIFSync;
3509 	if (status & HDSP_SPDIFErrorFlag)
3510 		snd_iprintf (buffer, "SPDIF: No Lock\n");
3511 	else
3512 		snd_iprintf (buffer, "SPDIF: %s\n", x ? "Sync" : "Lock");
3513 
3514 	x = status2 & HDSP_wc_sync;
3515 	if (status2 & HDSP_wc_lock)
3516 		snd_iprintf (buffer, "Word Clock: %s\n", x ? "Sync" : "Lock");
3517 	else
3518 		snd_iprintf (buffer, "Word Clock: No Lock\n");
3519 
3520 	x = status & HDSP_TimecodeSync;
3521 	if (status & HDSP_TimecodeLock)
3522 		snd_iprintf(buffer, "ADAT Sync: %s\n", x ? "Sync" : "Lock");
3523 	else
3524 		snd_iprintf(buffer, "ADAT Sync: No Lock\n");
3525 
3526 	snd_iprintf(buffer, "\n");
3527 
3528 	/* Informations about H9632 specific controls */
3529 	if (hdsp->io_type == H9632) {
3530 		char *tmp;
3531 
3532 		switch (hdsp_ad_gain(hdsp)) {
3533 		case 0:
3534 			tmp = "-10 dBV";
3535 			break;
3536 		case 1:
3537 			tmp = "+4 dBu";
3538 			break;
3539 		default:
3540 			tmp = "Lo Gain";
3541 			break;
3542 		}
3543 		snd_iprintf(buffer, "AD Gain : %s\n", tmp);
3544 
3545 		switch (hdsp_da_gain(hdsp)) {
3546 		case 0:
3547 			tmp = "Hi Gain";
3548 			break;
3549 		case 1:
3550 			tmp = "+4 dBu";
3551 			break;
3552 		default:
3553 			tmp = "-10 dBV";
3554 			break;
3555 		}
3556 		snd_iprintf(buffer, "DA Gain : %s\n", tmp);
3557 
3558 		switch (hdsp_phone_gain(hdsp)) {
3559 		case 0:
3560 			tmp = "0 dB";
3561 			break;
3562 		case 1:
3563 			tmp = "-6 dB";
3564 			break;
3565 		default:
3566 			tmp = "-12 dB";
3567 			break;
3568 		}
3569 		snd_iprintf(buffer, "Phones Gain : %s\n", tmp);
3570 
3571 		snd_iprintf(buffer, "XLR Breakout Cable : %s\n", hdsp_xlr_breakout_cable(hdsp) ? "yes" : "no");
3572 
3573 		if (hdsp->control_register & HDSP_AnalogExtensionBoard)
3574 			snd_iprintf(buffer, "AEB : on (ADAT1 internal)\n");
3575 		else
3576 			snd_iprintf(buffer, "AEB : off (ADAT1 external)\n");
3577 		snd_iprintf(buffer, "\n");
3578 	}
3579 
3580 }
3581 
3582 static void snd_hdsp_proc_init(struct hdsp *hdsp)
3583 {
3584 	struct snd_info_entry *entry;
3585 
3586 	if (! snd_card_proc_new(hdsp->card, "hdsp", &entry))
3587 		snd_info_set_text_ops(entry, hdsp, snd_hdsp_proc_read);
3588 }
3589 
3590 static void snd_hdsp_free_buffers(struct hdsp *hdsp)
3591 {
3592 	snd_hammerfall_free_buffer(&hdsp->capture_dma_buf, hdsp->pci);
3593 	snd_hammerfall_free_buffer(&hdsp->playback_dma_buf, hdsp->pci);
3594 }
3595 
3596 static int __devinit snd_hdsp_initialize_memory(struct hdsp *hdsp)
3597 {
3598 	unsigned long pb_bus, cb_bus;
3599 
3600 	if (snd_hammerfall_get_buffer(hdsp->pci, &hdsp->capture_dma_buf, HDSP_DMA_AREA_BYTES) < 0 ||
3601 	    snd_hammerfall_get_buffer(hdsp->pci, &hdsp->playback_dma_buf, HDSP_DMA_AREA_BYTES) < 0) {
3602 		if (hdsp->capture_dma_buf.area)
3603 			snd_dma_free_pages(&hdsp->capture_dma_buf);
3604 		printk(KERN_ERR "%s: no buffers available\n", hdsp->card_name);
3605 		return -ENOMEM;
3606 	}
3607 
3608 	/* Align to bus-space 64K boundary */
3609 
3610 	cb_bus = ALIGN(hdsp->capture_dma_buf.addr, 0x10000ul);
3611 	pb_bus = ALIGN(hdsp->playback_dma_buf.addr, 0x10000ul);
3612 
3613 	/* Tell the card where it is */
3614 
3615 	hdsp_write(hdsp, HDSP_inputBufferAddress, cb_bus);
3616 	hdsp_write(hdsp, HDSP_outputBufferAddress, pb_bus);
3617 
3618 	hdsp->capture_buffer = hdsp->capture_dma_buf.area + (cb_bus - hdsp->capture_dma_buf.addr);
3619 	hdsp->playback_buffer = hdsp->playback_dma_buf.area + (pb_bus - hdsp->playback_dma_buf.addr);
3620 
3621 	return 0;
3622 }
3623 
3624 static int snd_hdsp_set_defaults(struct hdsp *hdsp)
3625 {
3626 	unsigned int i;
3627 
3628 	/* ASSUMPTION: hdsp->lock is either held, or
3629 	   there is no need to hold it (e.g. during module
3630 	   initialization).
3631 	 */
3632 
3633 	/* set defaults:
3634 
3635 	   SPDIF Input via Coax
3636 	   Master clock mode
3637 	   maximum latency (7 => 2^7 = 8192 samples, 64Kbyte buffer,
3638 	                    which implies 2 4096 sample, 32Kbyte periods).
3639            Enable line out.
3640 	 */
3641 
3642 	hdsp->control_register = HDSP_ClockModeMaster |
3643 		                 HDSP_SPDIFInputCoaxial |
3644 		                 hdsp_encode_latency(7) |
3645 		                 HDSP_LineOut;
3646 
3647 
3648 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3649 
3650 #ifdef SNDRV_BIG_ENDIAN
3651 	hdsp->control2_register = HDSP_BIGENDIAN_MODE;
3652 #else
3653 	hdsp->control2_register = 0;
3654 #endif
3655 	if (hdsp->io_type == H9652)
3656 	        snd_hdsp_9652_enable_mixer (hdsp);
3657 	else
3658 		hdsp_write (hdsp, HDSP_control2Reg, hdsp->control2_register);
3659 
3660 	hdsp_reset_hw_pointer(hdsp);
3661 	hdsp_compute_period_size(hdsp);
3662 
3663 	/* silence everything */
3664 
3665 	for (i = 0; i < HDSP_MATRIX_MIXER_SIZE; ++i)
3666 		hdsp->mixer_matrix[i] = MINUS_INFINITY_GAIN;
3667 
3668 	for (i = 0; i < ((hdsp->io_type == H9652 || hdsp->io_type == H9632) ? 1352 : HDSP_MATRIX_MIXER_SIZE); ++i) {
3669 		if (hdsp_write_gain (hdsp, i, MINUS_INFINITY_GAIN))
3670 			return -EIO;
3671 	}
3672 
3673 	/* H9632 specific defaults */
3674 	if (hdsp->io_type == H9632) {
3675 		hdsp->control_register |= (HDSP_DAGainPlus4dBu | HDSP_ADGainPlus4dBu | HDSP_PhoneGain0dB);
3676 		hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3677 	}
3678 
3679 	/* set a default rate so that the channel map is set up.
3680 	 */
3681 
3682 	hdsp_set_rate(hdsp, 48000, 1);
3683 
3684 	return 0;
3685 }
3686 
3687 static void hdsp_midi_tasklet(unsigned long arg)
3688 {
3689 	struct hdsp *hdsp = (struct hdsp *)arg;
3690 
3691 	if (hdsp->midi[0].pending)
3692 		snd_hdsp_midi_input_read (&hdsp->midi[0]);
3693 	if (hdsp->midi[1].pending)
3694 		snd_hdsp_midi_input_read (&hdsp->midi[1]);
3695 }
3696 
3697 static irqreturn_t snd_hdsp_interrupt(int irq, void *dev_id)
3698 {
3699 	struct hdsp *hdsp = (struct hdsp *) dev_id;
3700 	unsigned int status;
3701 	int audio;
3702 	int midi0;
3703 	int midi1;
3704 	unsigned int midi0status;
3705 	unsigned int midi1status;
3706 	int schedule = 0;
3707 
3708 	status = hdsp_read(hdsp, HDSP_statusRegister);
3709 
3710 	audio = status & HDSP_audioIRQPending;
3711 	midi0 = status & HDSP_midi0IRQPending;
3712 	midi1 = status & HDSP_midi1IRQPending;
3713 
3714 	if (!audio && !midi0 && !midi1)
3715 		return IRQ_NONE;
3716 
3717 	hdsp_write(hdsp, HDSP_interruptConfirmation, 0);
3718 
3719 	midi0status = hdsp_read (hdsp, HDSP_midiStatusIn0) & 0xff;
3720 	midi1status = hdsp_read (hdsp, HDSP_midiStatusIn1) & 0xff;
3721 
3722 	if (audio) {
3723 		if (hdsp->capture_substream)
3724 			snd_pcm_period_elapsed(hdsp->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
3725 
3726 		if (hdsp->playback_substream)
3727 			snd_pcm_period_elapsed(hdsp->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream);
3728 	}
3729 
3730 	if (midi0 && midi0status) {
3731 		if (hdsp->use_midi_tasklet) {
3732 			/* we disable interrupts for this input until processing is done */
3733 			hdsp->control_register &= ~HDSP_Midi0InterruptEnable;
3734 			hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3735 			hdsp->midi[0].pending = 1;
3736 			schedule = 1;
3737 		} else {
3738 			snd_hdsp_midi_input_read (&hdsp->midi[0]);
3739 		}
3740 	}
3741 	if (hdsp->io_type != Multiface && hdsp->io_type != H9632 && midi1 && midi1status) {
3742 		if (hdsp->use_midi_tasklet) {
3743 			/* we disable interrupts for this input until processing is done */
3744 			hdsp->control_register &= ~HDSP_Midi1InterruptEnable;
3745 			hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3746 			hdsp->midi[1].pending = 1;
3747 			schedule = 1;
3748 		} else {
3749 			snd_hdsp_midi_input_read (&hdsp->midi[1]);
3750 		}
3751 	}
3752 	if (hdsp->use_midi_tasklet && schedule)
3753 		tasklet_hi_schedule(&hdsp->midi_tasklet);
3754 	return IRQ_HANDLED;
3755 }
3756 
3757 static snd_pcm_uframes_t snd_hdsp_hw_pointer(struct snd_pcm_substream *substream)
3758 {
3759 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3760 	return hdsp_hw_pointer(hdsp);
3761 }
3762 
3763 static char *hdsp_channel_buffer_location(struct hdsp *hdsp,
3764 					     int stream,
3765 					     int channel)
3766 
3767 {
3768 	int mapped_channel;
3769 
3770         snd_assert(channel >= 0 && channel < hdsp->max_channels, return NULL);
3771 
3772 	if ((mapped_channel = hdsp->channel_map[channel]) < 0)
3773 		return NULL;
3774 
3775 	if (stream == SNDRV_PCM_STREAM_CAPTURE)
3776 		return hdsp->capture_buffer + (mapped_channel * HDSP_CHANNEL_BUFFER_BYTES);
3777 	else
3778 		return hdsp->playback_buffer + (mapped_channel * HDSP_CHANNEL_BUFFER_BYTES);
3779 }
3780 
3781 static int snd_hdsp_playback_copy(struct snd_pcm_substream *substream, int channel,
3782 				  snd_pcm_uframes_t pos, void __user *src, snd_pcm_uframes_t count)
3783 {
3784 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3785 	char *channel_buf;
3786 
3787 	snd_assert(pos + count <= HDSP_CHANNEL_BUFFER_BYTES / 4, return -EINVAL);
3788 
3789 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
3790 	snd_assert(channel_buf != NULL, return -EIO);
3791 	if (copy_from_user(channel_buf + pos * 4, src, count * 4))
3792 		return -EFAULT;
3793 	return count;
3794 }
3795 
3796 static int snd_hdsp_capture_copy(struct snd_pcm_substream *substream, int channel,
3797 				 snd_pcm_uframes_t pos, void __user *dst, snd_pcm_uframes_t count)
3798 {
3799 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3800 	char *channel_buf;
3801 
3802 	snd_assert(pos + count <= HDSP_CHANNEL_BUFFER_BYTES / 4, return -EINVAL);
3803 
3804 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
3805 	snd_assert(channel_buf != NULL, return -EIO);
3806 	if (copy_to_user(dst, channel_buf + pos * 4, count * 4))
3807 		return -EFAULT;
3808 	return count;
3809 }
3810 
3811 static int snd_hdsp_hw_silence(struct snd_pcm_substream *substream, int channel,
3812 				  snd_pcm_uframes_t pos, snd_pcm_uframes_t count)
3813 {
3814 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3815 	char *channel_buf;
3816 
3817 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
3818 	snd_assert(channel_buf != NULL, return -EIO);
3819 	memset(channel_buf + pos * 4, 0, count * 4);
3820 	return count;
3821 }
3822 
3823 static int snd_hdsp_reset(struct snd_pcm_substream *substream)
3824 {
3825 	struct snd_pcm_runtime *runtime = substream->runtime;
3826 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3827 	struct snd_pcm_substream *other;
3828 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
3829 		other = hdsp->capture_substream;
3830 	else
3831 		other = hdsp->playback_substream;
3832 	if (hdsp->running)
3833 		runtime->status->hw_ptr = hdsp_hw_pointer(hdsp);
3834 	else
3835 		runtime->status->hw_ptr = 0;
3836 	if (other) {
3837 		struct snd_pcm_substream *s;
3838 		struct snd_pcm_runtime *oruntime = other->runtime;
3839 		snd_pcm_group_for_each_entry(s, substream) {
3840 			if (s == other) {
3841 				oruntime->status->hw_ptr = runtime->status->hw_ptr;
3842 				break;
3843 			}
3844 		}
3845 	}
3846 	return 0;
3847 }
3848 
3849 static int snd_hdsp_hw_params(struct snd_pcm_substream *substream,
3850 				 struct snd_pcm_hw_params *params)
3851 {
3852 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3853 	int err;
3854 	pid_t this_pid;
3855 	pid_t other_pid;
3856 
3857 	if (hdsp_check_for_iobox (hdsp))
3858 		return -EIO;
3859 
3860 	if (hdsp_check_for_firmware(hdsp, 1))
3861 		return -EIO;
3862 
3863 	spin_lock_irq(&hdsp->lock);
3864 
3865 	if (substream->pstr->stream == SNDRV_PCM_STREAM_PLAYBACK) {
3866 		hdsp->control_register &= ~(HDSP_SPDIFProfessional | HDSP_SPDIFNonAudio | HDSP_SPDIFEmphasis);
3867 		hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register |= hdsp->creg_spdif_stream);
3868 		this_pid = hdsp->playback_pid;
3869 		other_pid = hdsp->capture_pid;
3870 	} else {
3871 		this_pid = hdsp->capture_pid;
3872 		other_pid = hdsp->playback_pid;
3873 	}
3874 
3875 	if ((other_pid > 0) && (this_pid != other_pid)) {
3876 
3877 		/* The other stream is open, and not by the same
3878 		   task as this one. Make sure that the parameters
3879 		   that matter are the same.
3880 		 */
3881 
3882 		if (params_rate(params) != hdsp->system_sample_rate) {
3883 			spin_unlock_irq(&hdsp->lock);
3884 			_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
3885 			return -EBUSY;
3886 		}
3887 
3888 		if (params_period_size(params) != hdsp->period_bytes / 4) {
3889 			spin_unlock_irq(&hdsp->lock);
3890 			_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
3891 			return -EBUSY;
3892 		}
3893 
3894 		/* We're fine. */
3895 
3896 		spin_unlock_irq(&hdsp->lock);
3897  		return 0;
3898 
3899 	} else {
3900 		spin_unlock_irq(&hdsp->lock);
3901 	}
3902 
3903 	/* how to make sure that the rate matches an externally-set one ?
3904 	 */
3905 
3906 	spin_lock_irq(&hdsp->lock);
3907 	if (! hdsp->clock_source_locked) {
3908 		if ((err = hdsp_set_rate(hdsp, params_rate(params), 0)) < 0) {
3909 			spin_unlock_irq(&hdsp->lock);
3910 			_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
3911 			return err;
3912 		}
3913 	}
3914 	spin_unlock_irq(&hdsp->lock);
3915 
3916 	if ((err = hdsp_set_interrupt_interval(hdsp, params_period_size(params))) < 0) {
3917 		_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
3918 		return err;
3919 	}
3920 
3921 	return 0;
3922 }
3923 
3924 static int snd_hdsp_channel_info(struct snd_pcm_substream *substream,
3925 				    struct snd_pcm_channel_info *info)
3926 {
3927 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3928 	int mapped_channel;
3929 
3930 	snd_assert(info->channel < hdsp->max_channels, return -EINVAL);
3931 
3932 	if ((mapped_channel = hdsp->channel_map[info->channel]) < 0)
3933 		return -EINVAL;
3934 
3935 	info->offset = mapped_channel * HDSP_CHANNEL_BUFFER_BYTES;
3936 	info->first = 0;
3937 	info->step = 32;
3938 	return 0;
3939 }
3940 
3941 static int snd_hdsp_ioctl(struct snd_pcm_substream *substream,
3942 			     unsigned int cmd, void *arg)
3943 {
3944 	switch (cmd) {
3945 	case SNDRV_PCM_IOCTL1_RESET:
3946 		return snd_hdsp_reset(substream);
3947 	case SNDRV_PCM_IOCTL1_CHANNEL_INFO:
3948 		return snd_hdsp_channel_info(substream, arg);
3949 	default:
3950 		break;
3951 	}
3952 
3953 	return snd_pcm_lib_ioctl(substream, cmd, arg);
3954 }
3955 
3956 static int snd_hdsp_trigger(struct snd_pcm_substream *substream, int cmd)
3957 {
3958 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3959 	struct snd_pcm_substream *other;
3960 	int running;
3961 
3962 	if (hdsp_check_for_iobox (hdsp))
3963 		return -EIO;
3964 
3965 	if (hdsp_check_for_firmware(hdsp, 0)) /* no auto-loading in trigger */
3966 		return -EIO;
3967 
3968 	spin_lock(&hdsp->lock);
3969 	running = hdsp->running;
3970 	switch (cmd) {
3971 	case SNDRV_PCM_TRIGGER_START:
3972 		running |= 1 << substream->stream;
3973 		break;
3974 	case SNDRV_PCM_TRIGGER_STOP:
3975 		running &= ~(1 << substream->stream);
3976 		break;
3977 	default:
3978 		snd_BUG();
3979 		spin_unlock(&hdsp->lock);
3980 		return -EINVAL;
3981 	}
3982 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
3983 		other = hdsp->capture_substream;
3984 	else
3985 		other = hdsp->playback_substream;
3986 
3987 	if (other) {
3988 		struct snd_pcm_substream *s;
3989 		snd_pcm_group_for_each_entry(s, substream) {
3990 			if (s == other) {
3991 				snd_pcm_trigger_done(s, substream);
3992 				if (cmd == SNDRV_PCM_TRIGGER_START)
3993 					running |= 1 << s->stream;
3994 				else
3995 					running &= ~(1 << s->stream);
3996 				goto _ok;
3997 			}
3998 		}
3999 		if (cmd == SNDRV_PCM_TRIGGER_START) {
4000 			if (!(running & (1 << SNDRV_PCM_STREAM_PLAYBACK)) &&
4001 			    substream->stream == SNDRV_PCM_STREAM_CAPTURE)
4002 				hdsp_silence_playback(hdsp);
4003 		} else {
4004 			if (running &&
4005 			    substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
4006 				hdsp_silence_playback(hdsp);
4007 		}
4008 	} else {
4009 		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
4010 				hdsp_silence_playback(hdsp);
4011 	}
4012  _ok:
4013 	snd_pcm_trigger_done(substream, substream);
4014 	if (!hdsp->running && running)
4015 		hdsp_start_audio(hdsp);
4016 	else if (hdsp->running && !running)
4017 		hdsp_stop_audio(hdsp);
4018 	hdsp->running = running;
4019 	spin_unlock(&hdsp->lock);
4020 
4021 	return 0;
4022 }
4023 
4024 static int snd_hdsp_prepare(struct snd_pcm_substream *substream)
4025 {
4026 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4027 	int result = 0;
4028 
4029 	if (hdsp_check_for_iobox (hdsp))
4030 		return -EIO;
4031 
4032 	if (hdsp_check_for_firmware(hdsp, 1))
4033 		return -EIO;
4034 
4035 	spin_lock_irq(&hdsp->lock);
4036 	if (!hdsp->running)
4037 		hdsp_reset_hw_pointer(hdsp);
4038 	spin_unlock_irq(&hdsp->lock);
4039 	return result;
4040 }
4041 
4042 static struct snd_pcm_hardware snd_hdsp_playback_subinfo =
4043 {
4044 	.info =			(SNDRV_PCM_INFO_MMAP |
4045 				 SNDRV_PCM_INFO_MMAP_VALID |
4046 				 SNDRV_PCM_INFO_NONINTERLEAVED |
4047 				 SNDRV_PCM_INFO_SYNC_START |
4048 				 SNDRV_PCM_INFO_DOUBLE),
4049 #ifdef SNDRV_BIG_ENDIAN
4050 	.formats =		SNDRV_PCM_FMTBIT_S32_BE,
4051 #else
4052 	.formats =		SNDRV_PCM_FMTBIT_S32_LE,
4053 #endif
4054 	.rates =		(SNDRV_PCM_RATE_32000 |
4055 				 SNDRV_PCM_RATE_44100 |
4056 				 SNDRV_PCM_RATE_48000 |
4057 				 SNDRV_PCM_RATE_64000 |
4058 				 SNDRV_PCM_RATE_88200 |
4059 				 SNDRV_PCM_RATE_96000),
4060 	.rate_min =		32000,
4061 	.rate_max =		96000,
4062 	.channels_min =		14,
4063 	.channels_max =		HDSP_MAX_CHANNELS,
4064 	.buffer_bytes_max =	HDSP_CHANNEL_BUFFER_BYTES * HDSP_MAX_CHANNELS,
4065 	.period_bytes_min =	(64 * 4) * 10,
4066 	.period_bytes_max =	(8192 * 4) * HDSP_MAX_CHANNELS,
4067 	.periods_min =		2,
4068 	.periods_max =		2,
4069 	.fifo_size =		0
4070 };
4071 
4072 static struct snd_pcm_hardware snd_hdsp_capture_subinfo =
4073 {
4074 	.info =			(SNDRV_PCM_INFO_MMAP |
4075 				 SNDRV_PCM_INFO_MMAP_VALID |
4076 				 SNDRV_PCM_INFO_NONINTERLEAVED |
4077 				 SNDRV_PCM_INFO_SYNC_START),
4078 #ifdef SNDRV_BIG_ENDIAN
4079 	.formats =		SNDRV_PCM_FMTBIT_S32_BE,
4080 #else
4081 	.formats =		SNDRV_PCM_FMTBIT_S32_LE,
4082 #endif
4083 	.rates =		(SNDRV_PCM_RATE_32000 |
4084 				 SNDRV_PCM_RATE_44100 |
4085 				 SNDRV_PCM_RATE_48000 |
4086 				 SNDRV_PCM_RATE_64000 |
4087 				 SNDRV_PCM_RATE_88200 |
4088 				 SNDRV_PCM_RATE_96000),
4089 	.rate_min =		32000,
4090 	.rate_max =		96000,
4091 	.channels_min =		14,
4092 	.channels_max =		HDSP_MAX_CHANNELS,
4093 	.buffer_bytes_max =	HDSP_CHANNEL_BUFFER_BYTES * HDSP_MAX_CHANNELS,
4094 	.period_bytes_min =	(64 * 4) * 10,
4095 	.period_bytes_max =	(8192 * 4) * HDSP_MAX_CHANNELS,
4096 	.periods_min =		2,
4097 	.periods_max =		2,
4098 	.fifo_size =		0
4099 };
4100 
4101 static unsigned int hdsp_period_sizes[] = { 64, 128, 256, 512, 1024, 2048, 4096, 8192 };
4102 
4103 static struct snd_pcm_hw_constraint_list hdsp_hw_constraints_period_sizes = {
4104 	.count = ARRAY_SIZE(hdsp_period_sizes),
4105 	.list = hdsp_period_sizes,
4106 	.mask = 0
4107 };
4108 
4109 static unsigned int hdsp_9632_sample_rates[] = { 32000, 44100, 48000, 64000, 88200, 96000, 128000, 176400, 192000 };
4110 
4111 static struct snd_pcm_hw_constraint_list hdsp_hw_constraints_9632_sample_rates = {
4112 	.count = ARRAY_SIZE(hdsp_9632_sample_rates),
4113 	.list = hdsp_9632_sample_rates,
4114 	.mask = 0
4115 };
4116 
4117 static int snd_hdsp_hw_rule_in_channels(struct snd_pcm_hw_params *params,
4118 					struct snd_pcm_hw_rule *rule)
4119 {
4120 	struct hdsp *hdsp = rule->private;
4121 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4122 	if (hdsp->io_type == H9632) {
4123 		unsigned int list[3];
4124 		list[0] = hdsp->qs_in_channels;
4125 		list[1] = hdsp->ds_in_channels;
4126 		list[2] = hdsp->ss_in_channels;
4127 		return snd_interval_list(c, 3, list, 0);
4128 	} else {
4129 		unsigned int list[2];
4130 		list[0] = hdsp->ds_in_channels;
4131 		list[1] = hdsp->ss_in_channels;
4132 		return snd_interval_list(c, 2, list, 0);
4133 	}
4134 }
4135 
4136 static int snd_hdsp_hw_rule_out_channels(struct snd_pcm_hw_params *params,
4137 					struct snd_pcm_hw_rule *rule)
4138 {
4139 	unsigned int list[3];
4140 	struct hdsp *hdsp = rule->private;
4141 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4142 	if (hdsp->io_type == H9632) {
4143 		list[0] = hdsp->qs_out_channels;
4144 		list[1] = hdsp->ds_out_channels;
4145 		list[2] = hdsp->ss_out_channels;
4146 		return snd_interval_list(c, 3, list, 0);
4147 	} else {
4148 		list[0] = hdsp->ds_out_channels;
4149 		list[1] = hdsp->ss_out_channels;
4150 	}
4151 	return snd_interval_list(c, 2, list, 0);
4152 }
4153 
4154 static int snd_hdsp_hw_rule_in_channels_rate(struct snd_pcm_hw_params *params,
4155 					     struct snd_pcm_hw_rule *rule)
4156 {
4157 	struct hdsp *hdsp = rule->private;
4158 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4159 	struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
4160 	if (r->min > 96000 && hdsp->io_type == H9632) {
4161 		struct snd_interval t = {
4162 			.min = hdsp->qs_in_channels,
4163 			.max = hdsp->qs_in_channels,
4164 			.integer = 1,
4165 		};
4166 		return snd_interval_refine(c, &t);
4167 	} else if (r->min > 48000 && r->max <= 96000) {
4168 		struct snd_interval t = {
4169 			.min = hdsp->ds_in_channels,
4170 			.max = hdsp->ds_in_channels,
4171 			.integer = 1,
4172 		};
4173 		return snd_interval_refine(c, &t);
4174 	} else if (r->max < 64000) {
4175 		struct snd_interval t = {
4176 			.min = hdsp->ss_in_channels,
4177 			.max = hdsp->ss_in_channels,
4178 			.integer = 1,
4179 		};
4180 		return snd_interval_refine(c, &t);
4181 	}
4182 	return 0;
4183 }
4184 
4185 static int snd_hdsp_hw_rule_out_channels_rate(struct snd_pcm_hw_params *params,
4186 					     struct snd_pcm_hw_rule *rule)
4187 {
4188 	struct hdsp *hdsp = rule->private;
4189 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4190 	struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
4191 	if (r->min > 96000 && hdsp->io_type == H9632) {
4192 		struct snd_interval t = {
4193 			.min = hdsp->qs_out_channels,
4194 			.max = hdsp->qs_out_channels,
4195 			.integer = 1,
4196 		};
4197 		return snd_interval_refine(c, &t);
4198 	} else if (r->min > 48000 && r->max <= 96000) {
4199 		struct snd_interval t = {
4200 			.min = hdsp->ds_out_channels,
4201 			.max = hdsp->ds_out_channels,
4202 			.integer = 1,
4203 		};
4204 		return snd_interval_refine(c, &t);
4205 	} else if (r->max < 64000) {
4206 		struct snd_interval t = {
4207 			.min = hdsp->ss_out_channels,
4208 			.max = hdsp->ss_out_channels,
4209 			.integer = 1,
4210 		};
4211 		return snd_interval_refine(c, &t);
4212 	}
4213 	return 0;
4214 }
4215 
4216 static int snd_hdsp_hw_rule_rate_out_channels(struct snd_pcm_hw_params *params,
4217 					     struct snd_pcm_hw_rule *rule)
4218 {
4219 	struct hdsp *hdsp = rule->private;
4220 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4221 	struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
4222 	if (c->min >= hdsp->ss_out_channels) {
4223 		struct snd_interval t = {
4224 			.min = 32000,
4225 			.max = 48000,
4226 			.integer = 1,
4227 		};
4228 		return snd_interval_refine(r, &t);
4229 	} else if (c->max <= hdsp->qs_out_channels && hdsp->io_type == H9632) {
4230 		struct snd_interval t = {
4231 			.min = 128000,
4232 			.max = 192000,
4233 			.integer = 1,
4234 		};
4235 		return snd_interval_refine(r, &t);
4236 	} else if (c->max <= hdsp->ds_out_channels) {
4237 		struct snd_interval t = {
4238 			.min = 64000,
4239 			.max = 96000,
4240 			.integer = 1,
4241 		};
4242 		return snd_interval_refine(r, &t);
4243 	}
4244 	return 0;
4245 }
4246 
4247 static int snd_hdsp_hw_rule_rate_in_channels(struct snd_pcm_hw_params *params,
4248 					     struct snd_pcm_hw_rule *rule)
4249 {
4250 	struct hdsp *hdsp = rule->private;
4251 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4252 	struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
4253 	if (c->min >= hdsp->ss_in_channels) {
4254 		struct snd_interval t = {
4255 			.min = 32000,
4256 			.max = 48000,
4257 			.integer = 1,
4258 		};
4259 		return snd_interval_refine(r, &t);
4260 	} else if (c->max <= hdsp->qs_in_channels && hdsp->io_type == H9632) {
4261 		struct snd_interval t = {
4262 			.min = 128000,
4263 			.max = 192000,
4264 			.integer = 1,
4265 		};
4266 		return snd_interval_refine(r, &t);
4267 	} else if (c->max <= hdsp->ds_in_channels) {
4268 		struct snd_interval t = {
4269 			.min = 64000,
4270 			.max = 96000,
4271 			.integer = 1,
4272 		};
4273 		return snd_interval_refine(r, &t);
4274 	}
4275 	return 0;
4276 }
4277 
4278 static int snd_hdsp_playback_open(struct snd_pcm_substream *substream)
4279 {
4280 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4281 	struct snd_pcm_runtime *runtime = substream->runtime;
4282 
4283 	if (hdsp_check_for_iobox (hdsp))
4284 		return -EIO;
4285 
4286 	if (hdsp_check_for_firmware(hdsp, 1))
4287 		return -EIO;
4288 
4289 	spin_lock_irq(&hdsp->lock);
4290 
4291 	snd_pcm_set_sync(substream);
4292 
4293         runtime->hw = snd_hdsp_playback_subinfo;
4294 	runtime->dma_area = hdsp->playback_buffer;
4295 	runtime->dma_bytes = HDSP_DMA_AREA_BYTES;
4296 
4297 	hdsp->playback_pid = current->pid;
4298 	hdsp->playback_substream = substream;
4299 
4300 	spin_unlock_irq(&hdsp->lock);
4301 
4302 	snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
4303 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hdsp_hw_constraints_period_sizes);
4304 	if (hdsp->clock_source_locked) {
4305 		runtime->hw.rate_min = runtime->hw.rate_max = hdsp->system_sample_rate;
4306 	} else if (hdsp->io_type == H9632) {
4307 		runtime->hw.rate_max = 192000;
4308 		runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
4309 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hdsp_hw_constraints_9632_sample_rates);
4310 	}
4311 	if (hdsp->io_type == H9632) {
4312 		runtime->hw.channels_min = hdsp->qs_out_channels;
4313 		runtime->hw.channels_max = hdsp->ss_out_channels;
4314 	}
4315 
4316 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
4317 			     snd_hdsp_hw_rule_out_channels, hdsp,
4318 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
4319 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
4320 			     snd_hdsp_hw_rule_out_channels_rate, hdsp,
4321 			     SNDRV_PCM_HW_PARAM_RATE, -1);
4322 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
4323 			     snd_hdsp_hw_rule_rate_out_channels, hdsp,
4324 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
4325 
4326 	hdsp->creg_spdif_stream = hdsp->creg_spdif;
4327 	hdsp->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
4328 	snd_ctl_notify(hdsp->card, SNDRV_CTL_EVENT_MASK_VALUE |
4329 		       SNDRV_CTL_EVENT_MASK_INFO, &hdsp->spdif_ctl->id);
4330 	return 0;
4331 }
4332 
4333 static int snd_hdsp_playback_release(struct snd_pcm_substream *substream)
4334 {
4335 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4336 
4337 	spin_lock_irq(&hdsp->lock);
4338 
4339 	hdsp->playback_pid = -1;
4340 	hdsp->playback_substream = NULL;
4341 
4342 	spin_unlock_irq(&hdsp->lock);
4343 
4344 	hdsp->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
4345 	snd_ctl_notify(hdsp->card, SNDRV_CTL_EVENT_MASK_VALUE |
4346 		       SNDRV_CTL_EVENT_MASK_INFO, &hdsp->spdif_ctl->id);
4347 	return 0;
4348 }
4349 
4350 
4351 static int snd_hdsp_capture_open(struct snd_pcm_substream *substream)
4352 {
4353 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4354 	struct snd_pcm_runtime *runtime = substream->runtime;
4355 
4356 	if (hdsp_check_for_iobox (hdsp))
4357 		return -EIO;
4358 
4359 	if (hdsp_check_for_firmware(hdsp, 1))
4360 		return -EIO;
4361 
4362 	spin_lock_irq(&hdsp->lock);
4363 
4364 	snd_pcm_set_sync(substream);
4365 
4366 	runtime->hw = snd_hdsp_capture_subinfo;
4367 	runtime->dma_area = hdsp->capture_buffer;
4368 	runtime->dma_bytes = HDSP_DMA_AREA_BYTES;
4369 
4370 	hdsp->capture_pid = current->pid;
4371 	hdsp->capture_substream = substream;
4372 
4373 	spin_unlock_irq(&hdsp->lock);
4374 
4375 	snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
4376 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hdsp_hw_constraints_period_sizes);
4377 	if (hdsp->io_type == H9632) {
4378 		runtime->hw.channels_min = hdsp->qs_in_channels;
4379 		runtime->hw.channels_max = hdsp->ss_in_channels;
4380 		runtime->hw.rate_max = 192000;
4381 		runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
4382 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hdsp_hw_constraints_9632_sample_rates);
4383 	}
4384 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
4385 			     snd_hdsp_hw_rule_in_channels, hdsp,
4386 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
4387 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
4388 			     snd_hdsp_hw_rule_in_channels_rate, hdsp,
4389 			     SNDRV_PCM_HW_PARAM_RATE, -1);
4390 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
4391 			     snd_hdsp_hw_rule_rate_in_channels, hdsp,
4392 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
4393 	return 0;
4394 }
4395 
4396 static int snd_hdsp_capture_release(struct snd_pcm_substream *substream)
4397 {
4398 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4399 
4400 	spin_lock_irq(&hdsp->lock);
4401 
4402 	hdsp->capture_pid = -1;
4403 	hdsp->capture_substream = NULL;
4404 
4405 	spin_unlock_irq(&hdsp->lock);
4406 	return 0;
4407 }
4408 
4409 static int snd_hdsp_hwdep_dummy_op(struct snd_hwdep *hw, struct file *file)
4410 {
4411 	/* we have nothing to initialize but the call is required */
4412 	return 0;
4413 }
4414 
4415 
4416 /* helper functions for copying meter values */
4417 static inline int copy_u32_le(void __user *dest, void __iomem *src)
4418 {
4419 	u32 val = readl(src);
4420 	return copy_to_user(dest, &val, 4);
4421 }
4422 
4423 static inline int copy_u64_le(void __user *dest, void __iomem *src_low, void __iomem *src_high)
4424 {
4425 	u32 rms_low, rms_high;
4426 	u64 rms;
4427 	rms_low = readl(src_low);
4428 	rms_high = readl(src_high);
4429 	rms = ((u64)rms_high << 32) | rms_low;
4430 	return copy_to_user(dest, &rms, 8);
4431 }
4432 
4433 static inline int copy_u48_le(void __user *dest, void __iomem *src_low, void __iomem *src_high)
4434 {
4435 	u32 rms_low, rms_high;
4436 	u64 rms;
4437 	rms_low = readl(src_low) & 0xffffff00;
4438 	rms_high = readl(src_high) & 0xffffff00;
4439 	rms = ((u64)rms_high << 32) | rms_low;
4440 	return copy_to_user(dest, &rms, 8);
4441 }
4442 
4443 static int hdsp_9652_get_peak(struct hdsp *hdsp, struct hdsp_peak_rms __user *peak_rms)
4444 {
4445 	int doublespeed = 0;
4446 	int i, j, channels, ofs;
4447 
4448 	if (hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DoubleSpeedStatus)
4449 		doublespeed = 1;
4450 	channels = doublespeed ? 14 : 26;
4451 	for (i = 0, j = 0; i < 26; ++i) {
4452 		if (doublespeed && (i & 4))
4453 			continue;
4454 		ofs = HDSP_9652_peakBase - j * 4;
4455 		if (copy_u32_le(&peak_rms->input_peaks[i], hdsp->iobase + ofs))
4456 			return -EFAULT;
4457 		ofs -= channels * 4;
4458 		if (copy_u32_le(&peak_rms->playback_peaks[i], hdsp->iobase + ofs))
4459 			return -EFAULT;
4460 		ofs -= channels * 4;
4461 		if (copy_u32_le(&peak_rms->output_peaks[i], hdsp->iobase + ofs))
4462 			return -EFAULT;
4463 		ofs = HDSP_9652_rmsBase + j * 8;
4464 		if (copy_u48_le(&peak_rms->input_rms[i], hdsp->iobase + ofs,
4465 				hdsp->iobase + ofs + 4))
4466 			return -EFAULT;
4467 		ofs += channels * 8;
4468 		if (copy_u48_le(&peak_rms->playback_rms[i], hdsp->iobase + ofs,
4469 				hdsp->iobase + ofs + 4))
4470 			return -EFAULT;
4471 		ofs += channels * 8;
4472 		if (copy_u48_le(&peak_rms->output_rms[i], hdsp->iobase + ofs,
4473 				hdsp->iobase + ofs + 4))
4474 			return -EFAULT;
4475 		j++;
4476 	}
4477 	return 0;
4478 }
4479 
4480 static int hdsp_9632_get_peak(struct hdsp *hdsp, struct hdsp_peak_rms __user *peak_rms)
4481 {
4482 	int i, j;
4483 	struct hdsp_9632_meters __iomem *m;
4484 	int doublespeed = 0;
4485 
4486 	if (hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DoubleSpeedStatus)
4487 		doublespeed = 1;
4488 	m = (struct hdsp_9632_meters __iomem *)(hdsp->iobase+HDSP_9632_metersBase);
4489 	for (i = 0, j = 0; i < 16; ++i, ++j) {
4490 		if (copy_u32_le(&peak_rms->input_peaks[i], &m->input_peak[j]))
4491 			return -EFAULT;
4492 		if (copy_u32_le(&peak_rms->playback_peaks[i], &m->playback_peak[j]))
4493 			return -EFAULT;
4494 		if (copy_u32_le(&peak_rms->output_peaks[i], &m->output_peak[j]))
4495 			return -EFAULT;
4496 		if (copy_u64_le(&peak_rms->input_rms[i], &m->input_rms_low[j],
4497 				&m->input_rms_high[j]))
4498 			return -EFAULT;
4499 		if (copy_u64_le(&peak_rms->playback_rms[i], &m->playback_rms_low[j],
4500 				&m->playback_rms_high[j]))
4501 			return -EFAULT;
4502 		if (copy_u64_le(&peak_rms->output_rms[i], &m->output_rms_low[j],
4503 				&m->output_rms_high[j]))
4504 			return -EFAULT;
4505 		if (doublespeed && i == 3) i += 4;
4506 	}
4507 	return 0;
4508 }
4509 
4510 static int hdsp_get_peak(struct hdsp *hdsp, struct hdsp_peak_rms __user *peak_rms)
4511 {
4512 	int i;
4513 
4514 	for (i = 0; i < 26; i++) {
4515 		if (copy_u32_le(&peak_rms->playback_peaks[i],
4516 				hdsp->iobase + HDSP_playbackPeakLevel + i * 4))
4517 			return -EFAULT;
4518 		if (copy_u32_le(&peak_rms->input_peaks[i],
4519 				hdsp->iobase + HDSP_inputPeakLevel + i * 4))
4520 			return -EFAULT;
4521 	}
4522 	for (i = 0; i < 28; i++) {
4523 		if (copy_u32_le(&peak_rms->output_peaks[i],
4524 				hdsp->iobase + HDSP_outputPeakLevel + i * 4))
4525 			return -EFAULT;
4526 	}
4527 	for (i = 0; i < 26; ++i) {
4528 		if (copy_u64_le(&peak_rms->playback_rms[i],
4529 				hdsp->iobase + HDSP_playbackRmsLevel + i * 8 + 4,
4530 				hdsp->iobase + HDSP_playbackRmsLevel + i * 8))
4531 			return -EFAULT;
4532 		if (copy_u64_le(&peak_rms->input_rms[i],
4533 				hdsp->iobase + HDSP_inputRmsLevel + i * 8 + 4,
4534 				hdsp->iobase + HDSP_inputRmsLevel + i * 8))
4535 			return -EFAULT;
4536 	}
4537 	return 0;
4538 }
4539 
4540 static int snd_hdsp_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, unsigned int cmd, unsigned long arg)
4541 {
4542 	struct hdsp *hdsp = (struct hdsp *)hw->private_data;
4543 	void __user *argp = (void __user *)arg;
4544 
4545 	switch (cmd) {
4546 	case SNDRV_HDSP_IOCTL_GET_PEAK_RMS: {
4547 		struct hdsp_peak_rms __user *peak_rms = (struct hdsp_peak_rms __user *)arg;
4548 
4549 		if (!(hdsp->state & HDSP_FirmwareLoaded)) {
4550 			snd_printk(KERN_ERR "Hammerfall-DSP: firmware needs to be uploaded to the card.\n");
4551 			return -EINVAL;
4552 		}
4553 
4554 		switch (hdsp->io_type) {
4555 		case H9652:
4556 			return hdsp_9652_get_peak(hdsp, peak_rms);
4557 		case H9632:
4558 			return hdsp_9632_get_peak(hdsp, peak_rms);
4559 		default:
4560 			return hdsp_get_peak(hdsp, peak_rms);
4561 		}
4562 	}
4563 	case SNDRV_HDSP_IOCTL_GET_CONFIG_INFO: {
4564 		struct hdsp_config_info info;
4565 		unsigned long flags;
4566 		int i;
4567 
4568 		if (!(hdsp->state & HDSP_FirmwareLoaded)) {
4569 			snd_printk(KERN_ERR "Hammerfall-DSP: Firmware needs to be uploaded to the card.\n");
4570 			return -EINVAL;
4571 		}
4572 		spin_lock_irqsave(&hdsp->lock, flags);
4573 		info.pref_sync_ref = (unsigned char)hdsp_pref_sync_ref(hdsp);
4574 		info.wordclock_sync_check = (unsigned char)hdsp_wc_sync_check(hdsp);
4575 		if (hdsp->io_type != H9632)
4576 		    info.adatsync_sync_check = (unsigned char)hdsp_adatsync_sync_check(hdsp);
4577 		info.spdif_sync_check = (unsigned char)hdsp_spdif_sync_check(hdsp);
4578 		for (i = 0; i < ((hdsp->io_type != Multiface && hdsp->io_type != H9632) ? 3 : 1); ++i)
4579 			info.adat_sync_check[i] = (unsigned char)hdsp_adat_sync_check(hdsp, i);
4580 		info.spdif_in = (unsigned char)hdsp_spdif_in(hdsp);
4581 		info.spdif_out = (unsigned char)hdsp_spdif_out(hdsp);
4582 		info.spdif_professional = (unsigned char)hdsp_spdif_professional(hdsp);
4583 		info.spdif_emphasis = (unsigned char)hdsp_spdif_emphasis(hdsp);
4584 		info.spdif_nonaudio = (unsigned char)hdsp_spdif_nonaudio(hdsp);
4585 		info.spdif_sample_rate = hdsp_spdif_sample_rate(hdsp);
4586 		info.system_sample_rate = hdsp->system_sample_rate;
4587 		info.autosync_sample_rate = hdsp_external_sample_rate(hdsp);
4588 		info.system_clock_mode = (unsigned char)hdsp_system_clock_mode(hdsp);
4589 		info.clock_source = (unsigned char)hdsp_clock_source(hdsp);
4590 		info.autosync_ref = (unsigned char)hdsp_autosync_ref(hdsp);
4591 		info.line_out = (unsigned char)hdsp_line_out(hdsp);
4592 		if (hdsp->io_type == H9632) {
4593 			info.da_gain = (unsigned char)hdsp_da_gain(hdsp);
4594 			info.ad_gain = (unsigned char)hdsp_ad_gain(hdsp);
4595 			info.phone_gain = (unsigned char)hdsp_phone_gain(hdsp);
4596 			info.xlr_breakout_cable = (unsigned char)hdsp_xlr_breakout_cable(hdsp);
4597 
4598 		}
4599 		if (hdsp->io_type == H9632 || hdsp->io_type == H9652)
4600 			info.analog_extension_board = (unsigned char)hdsp_aeb(hdsp);
4601 		spin_unlock_irqrestore(&hdsp->lock, flags);
4602 		if (copy_to_user(argp, &info, sizeof(info)))
4603 			return -EFAULT;
4604 		break;
4605 	}
4606 	case SNDRV_HDSP_IOCTL_GET_9632_AEB: {
4607 		struct hdsp_9632_aeb h9632_aeb;
4608 
4609 		if (hdsp->io_type != H9632) return -EINVAL;
4610 		h9632_aeb.aebi = hdsp->ss_in_channels - H9632_SS_CHANNELS;
4611 		h9632_aeb.aebo = hdsp->ss_out_channels - H9632_SS_CHANNELS;
4612 		if (copy_to_user(argp, &h9632_aeb, sizeof(h9632_aeb)))
4613 			return -EFAULT;
4614 		break;
4615 	}
4616 	case SNDRV_HDSP_IOCTL_GET_VERSION: {
4617 		struct hdsp_version hdsp_version;
4618 		int err;
4619 
4620 		if (hdsp->io_type == H9652 || hdsp->io_type == H9632) return -EINVAL;
4621 		if (hdsp->io_type == Undefined) {
4622 			if ((err = hdsp_get_iobox_version(hdsp)) < 0)
4623 				return err;
4624 		}
4625 		hdsp_version.io_type = hdsp->io_type;
4626 		hdsp_version.firmware_rev = hdsp->firmware_rev;
4627 		if ((err = copy_to_user(argp, &hdsp_version, sizeof(hdsp_version))))
4628 		    	return -EFAULT;
4629 		break;
4630 	}
4631 	case SNDRV_HDSP_IOCTL_UPLOAD_FIRMWARE: {
4632 		struct hdsp_firmware __user *firmware;
4633 		u32 __user *firmware_data;
4634 		int err;
4635 
4636 		if (hdsp->io_type == H9652 || hdsp->io_type == H9632) return -EINVAL;
4637 		/* SNDRV_HDSP_IOCTL_GET_VERSION must have been called */
4638 		if (hdsp->io_type == Undefined) return -EINVAL;
4639 
4640 		if (hdsp->state & (HDSP_FirmwareCached | HDSP_FirmwareLoaded))
4641 			return -EBUSY;
4642 
4643 		snd_printk(KERN_INFO "Hammerfall-DSP: initializing firmware upload\n");
4644 		firmware = (struct hdsp_firmware __user *)argp;
4645 
4646 		if (get_user(firmware_data, &firmware->firmware_data))
4647 			return -EFAULT;
4648 
4649 		if (hdsp_check_for_iobox (hdsp))
4650 			return -EIO;
4651 
4652 		if (copy_from_user(hdsp->firmware_cache, firmware_data, sizeof(hdsp->firmware_cache)) != 0)
4653 			return -EFAULT;
4654 
4655 		hdsp->state |= HDSP_FirmwareCached;
4656 
4657 		if ((err = snd_hdsp_load_firmware_from_cache(hdsp)) < 0)
4658 			return err;
4659 
4660 		if (!(hdsp->state & HDSP_InitializationComplete)) {
4661 			if ((err = snd_hdsp_enable_io(hdsp)) < 0)
4662 				return err;
4663 
4664 			snd_hdsp_initialize_channels(hdsp);
4665 			snd_hdsp_initialize_midi_flush(hdsp);
4666 
4667 			if ((err = snd_hdsp_create_alsa_devices(hdsp->card, hdsp)) < 0) {
4668 				snd_printk(KERN_ERR "Hammerfall-DSP: error creating alsa devices\n");
4669 				return err;
4670 			}
4671 		}
4672 		break;
4673 	}
4674 	case SNDRV_HDSP_IOCTL_GET_MIXER: {
4675 		struct hdsp_mixer __user *mixer = (struct hdsp_mixer __user *)argp;
4676 		if (copy_to_user(mixer->matrix, hdsp->mixer_matrix, sizeof(unsigned short)*HDSP_MATRIX_MIXER_SIZE))
4677 			return -EFAULT;
4678 		break;
4679 	}
4680 	default:
4681 		return -EINVAL;
4682 	}
4683 	return 0;
4684 }
4685 
4686 static struct snd_pcm_ops snd_hdsp_playback_ops = {
4687 	.open =		snd_hdsp_playback_open,
4688 	.close =	snd_hdsp_playback_release,
4689 	.ioctl =	snd_hdsp_ioctl,
4690 	.hw_params =	snd_hdsp_hw_params,
4691 	.prepare =	snd_hdsp_prepare,
4692 	.trigger =	snd_hdsp_trigger,
4693 	.pointer =	snd_hdsp_hw_pointer,
4694 	.copy =		snd_hdsp_playback_copy,
4695 	.silence =	snd_hdsp_hw_silence,
4696 };
4697 
4698 static struct snd_pcm_ops snd_hdsp_capture_ops = {
4699 	.open =		snd_hdsp_capture_open,
4700 	.close =	snd_hdsp_capture_release,
4701 	.ioctl =	snd_hdsp_ioctl,
4702 	.hw_params =	snd_hdsp_hw_params,
4703 	.prepare =	snd_hdsp_prepare,
4704 	.trigger =	snd_hdsp_trigger,
4705 	.pointer =	snd_hdsp_hw_pointer,
4706 	.copy =		snd_hdsp_capture_copy,
4707 };
4708 
4709 static int snd_hdsp_create_hwdep(struct snd_card *card, struct hdsp *hdsp)
4710 {
4711 	struct snd_hwdep *hw;
4712 	int err;
4713 
4714 	if ((err = snd_hwdep_new(card, "HDSP hwdep", 0, &hw)) < 0)
4715 		return err;
4716 
4717 	hdsp->hwdep = hw;
4718 	hw->private_data = hdsp;
4719 	strcpy(hw->name, "HDSP hwdep interface");
4720 
4721 	hw->ops.open = snd_hdsp_hwdep_dummy_op;
4722 	hw->ops.ioctl = snd_hdsp_hwdep_ioctl;
4723 	hw->ops.release = snd_hdsp_hwdep_dummy_op;
4724 
4725 	return 0;
4726 }
4727 
4728 static int snd_hdsp_create_pcm(struct snd_card *card, struct hdsp *hdsp)
4729 {
4730 	struct snd_pcm *pcm;
4731 	int err;
4732 
4733 	if ((err = snd_pcm_new(card, hdsp->card_name, 0, 1, 1, &pcm)) < 0)
4734 		return err;
4735 
4736 	hdsp->pcm = pcm;
4737 	pcm->private_data = hdsp;
4738 	strcpy(pcm->name, hdsp->card_name);
4739 
4740 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_hdsp_playback_ops);
4741 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_hdsp_capture_ops);
4742 
4743 	pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
4744 
4745 	return 0;
4746 }
4747 
4748 static void snd_hdsp_9652_enable_mixer (struct hdsp *hdsp)
4749 {
4750         hdsp->control2_register |= HDSP_9652_ENABLE_MIXER;
4751 	hdsp_write (hdsp, HDSP_control2Reg, hdsp->control2_register);
4752 }
4753 
4754 static int snd_hdsp_enable_io (struct hdsp *hdsp)
4755 {
4756 	int i;
4757 
4758 	if (hdsp_fifo_wait (hdsp, 0, 100)) {
4759 		snd_printk(KERN_ERR "Hammerfall-DSP: enable_io fifo_wait failed\n");
4760 		return -EIO;
4761 	}
4762 
4763 	for (i = 0; i < hdsp->max_channels; ++i) {
4764 		hdsp_write (hdsp, HDSP_inputEnable + (4 * i), 1);
4765 		hdsp_write (hdsp, HDSP_outputEnable + (4 * i), 1);
4766 	}
4767 
4768 	return 0;
4769 }
4770 
4771 static void snd_hdsp_initialize_channels(struct hdsp *hdsp)
4772 {
4773 	int status, aebi_channels, aebo_channels;
4774 
4775 	switch (hdsp->io_type) {
4776 	case Digiface:
4777 		hdsp->card_name = "RME Hammerfall DSP + Digiface";
4778 		hdsp->ss_in_channels = hdsp->ss_out_channels = DIGIFACE_SS_CHANNELS;
4779 		hdsp->ds_in_channels = hdsp->ds_out_channels = DIGIFACE_DS_CHANNELS;
4780 		break;
4781 
4782 	case H9652:
4783 		hdsp->card_name = "RME Hammerfall HDSP 9652";
4784 		hdsp->ss_in_channels = hdsp->ss_out_channels = H9652_SS_CHANNELS;
4785 		hdsp->ds_in_channels = hdsp->ds_out_channels = H9652_DS_CHANNELS;
4786 		break;
4787 
4788 	case H9632:
4789 		status = hdsp_read(hdsp, HDSP_statusRegister);
4790 		/* HDSP_AEBx bits are low when AEB are connected */
4791 		aebi_channels = (status & HDSP_AEBI) ? 0 : 4;
4792 		aebo_channels = (status & HDSP_AEBO) ? 0 : 4;
4793 		hdsp->card_name = "RME Hammerfall HDSP 9632";
4794 		hdsp->ss_in_channels = H9632_SS_CHANNELS+aebi_channels;
4795 		hdsp->ds_in_channels = H9632_DS_CHANNELS+aebi_channels;
4796 		hdsp->qs_in_channels = H9632_QS_CHANNELS+aebi_channels;
4797 		hdsp->ss_out_channels = H9632_SS_CHANNELS+aebo_channels;
4798 		hdsp->ds_out_channels = H9632_DS_CHANNELS+aebo_channels;
4799 		hdsp->qs_out_channels = H9632_QS_CHANNELS+aebo_channels;
4800 		break;
4801 
4802 	case Multiface:
4803 		hdsp->card_name = "RME Hammerfall DSP + Multiface";
4804 		hdsp->ss_in_channels = hdsp->ss_out_channels = MULTIFACE_SS_CHANNELS;
4805 		hdsp->ds_in_channels = hdsp->ds_out_channels = MULTIFACE_DS_CHANNELS;
4806 		break;
4807 
4808 	default:
4809  		/* should never get here */
4810 		break;
4811 	}
4812 }
4813 
4814 static void snd_hdsp_initialize_midi_flush (struct hdsp *hdsp)
4815 {
4816 	snd_hdsp_flush_midi_input (hdsp, 0);
4817 	snd_hdsp_flush_midi_input (hdsp, 1);
4818 }
4819 
4820 static int snd_hdsp_create_alsa_devices(struct snd_card *card, struct hdsp *hdsp)
4821 {
4822 	int err;
4823 
4824 	if ((err = snd_hdsp_create_pcm(card, hdsp)) < 0) {
4825 		snd_printk(KERN_ERR "Hammerfall-DSP: Error creating pcm interface\n");
4826 		return err;
4827 	}
4828 
4829 
4830 	if ((err = snd_hdsp_create_midi(card, hdsp, 0)) < 0) {
4831 		snd_printk(KERN_ERR "Hammerfall-DSP: Error creating first midi interface\n");
4832 		return err;
4833 	}
4834 
4835 	if (hdsp->io_type == Digiface || hdsp->io_type == H9652) {
4836 		if ((err = snd_hdsp_create_midi(card, hdsp, 1)) < 0) {
4837 			snd_printk(KERN_ERR "Hammerfall-DSP: Error creating second midi interface\n");
4838 			return err;
4839 		}
4840 	}
4841 
4842 	if ((err = snd_hdsp_create_controls(card, hdsp)) < 0) {
4843 		snd_printk(KERN_ERR "Hammerfall-DSP: Error creating ctl interface\n");
4844 		return err;
4845 	}
4846 
4847 	snd_hdsp_proc_init(hdsp);
4848 
4849 	hdsp->system_sample_rate = -1;
4850 	hdsp->playback_pid = -1;
4851 	hdsp->capture_pid = -1;
4852 	hdsp->capture_substream = NULL;
4853 	hdsp->playback_substream = NULL;
4854 
4855 	if ((err = snd_hdsp_set_defaults(hdsp)) < 0) {
4856 		snd_printk(KERN_ERR "Hammerfall-DSP: Error setting default values\n");
4857 		return err;
4858 	}
4859 
4860 	if (!(hdsp->state & HDSP_InitializationComplete)) {
4861 		strcpy(card->shortname, "Hammerfall DSP");
4862 		sprintf(card->longname, "%s at 0x%lx, irq %d", hdsp->card_name,
4863 			hdsp->port, hdsp->irq);
4864 
4865 		if ((err = snd_card_register(card)) < 0) {
4866 			snd_printk(KERN_ERR "Hammerfall-DSP: error registering card\n");
4867 			return err;
4868 		}
4869 		hdsp->state |= HDSP_InitializationComplete;
4870 	}
4871 
4872 	return 0;
4873 }
4874 
4875 #ifdef HDSP_FW_LOADER
4876 /* load firmware via hotplug fw loader */
4877 static int hdsp_request_fw_loader(struct hdsp *hdsp)
4878 {
4879 	const char *fwfile;
4880 	const struct firmware *fw;
4881 	int err;
4882 
4883 	if (hdsp->io_type == H9652 || hdsp->io_type == H9632)
4884 		return 0;
4885 	if (hdsp->io_type == Undefined) {
4886 		if ((err = hdsp_get_iobox_version(hdsp)) < 0)
4887 			return err;
4888 		if (hdsp->io_type == H9652 || hdsp->io_type == H9632)
4889 			return 0;
4890 	}
4891 
4892 	/* caution: max length of firmware filename is 30! */
4893 	switch (hdsp->io_type) {
4894 	case Multiface:
4895 		if (hdsp->firmware_rev == 0xa)
4896 			fwfile = "multiface_firmware.bin";
4897 		else
4898 			fwfile = "multiface_firmware_rev11.bin";
4899 		break;
4900 	case Digiface:
4901 		if (hdsp->firmware_rev == 0xa)
4902 			fwfile = "digiface_firmware.bin";
4903 		else
4904 			fwfile = "digiface_firmware_rev11.bin";
4905 		break;
4906 	default:
4907 		snd_printk(KERN_ERR "Hammerfall-DSP: invalid io_type %d\n", hdsp->io_type);
4908 		return -EINVAL;
4909 	}
4910 
4911 	if (request_firmware(&fw, fwfile, &hdsp->pci->dev)) {
4912 		snd_printk(KERN_ERR "Hammerfall-DSP: cannot load firmware %s\n", fwfile);
4913 		return -ENOENT;
4914 	}
4915 	if (fw->size < sizeof(hdsp->firmware_cache)) {
4916 		snd_printk(KERN_ERR "Hammerfall-DSP: too short firmware size %d (expected %d)\n",
4917 			   (int)fw->size, (int)sizeof(hdsp->firmware_cache));
4918 		release_firmware(fw);
4919 		return -EINVAL;
4920 	}
4921 
4922 	memcpy(hdsp->firmware_cache, fw->data, sizeof(hdsp->firmware_cache));
4923 
4924 	release_firmware(fw);
4925 
4926 	hdsp->state |= HDSP_FirmwareCached;
4927 
4928 	if ((err = snd_hdsp_load_firmware_from_cache(hdsp)) < 0)
4929 		return err;
4930 
4931 	if (!(hdsp->state & HDSP_InitializationComplete)) {
4932 		if ((err = snd_hdsp_enable_io(hdsp)) < 0)
4933 			return err;
4934 
4935 		if ((err = snd_hdsp_create_hwdep(hdsp->card, hdsp)) < 0) {
4936 			snd_printk(KERN_ERR "Hammerfall-DSP: error creating hwdep device\n");
4937 			return err;
4938 		}
4939 		snd_hdsp_initialize_channels(hdsp);
4940 		snd_hdsp_initialize_midi_flush(hdsp);
4941 		if ((err = snd_hdsp_create_alsa_devices(hdsp->card, hdsp)) < 0) {
4942 			snd_printk(KERN_ERR "Hammerfall-DSP: error creating alsa devices\n");
4943 			return err;
4944 		}
4945 	}
4946 	return 0;
4947 }
4948 #endif
4949 
4950 static int __devinit snd_hdsp_create(struct snd_card *card,
4951 				     struct hdsp *hdsp)
4952 {
4953 	struct pci_dev *pci = hdsp->pci;
4954 	int err;
4955 	int is_9652 = 0;
4956 	int is_9632 = 0;
4957 
4958 	hdsp->irq = -1;
4959 	hdsp->state = 0;
4960 	hdsp->midi[0].rmidi = NULL;
4961 	hdsp->midi[1].rmidi = NULL;
4962 	hdsp->midi[0].input = NULL;
4963 	hdsp->midi[1].input = NULL;
4964 	hdsp->midi[0].output = NULL;
4965 	hdsp->midi[1].output = NULL;
4966 	hdsp->midi[0].pending = 0;
4967 	hdsp->midi[1].pending = 0;
4968 	spin_lock_init(&hdsp->midi[0].lock);
4969 	spin_lock_init(&hdsp->midi[1].lock);
4970 	hdsp->iobase = NULL;
4971 	hdsp->control_register = 0;
4972 	hdsp->control2_register = 0;
4973 	hdsp->io_type = Undefined;
4974 	hdsp->max_channels = 26;
4975 
4976 	hdsp->card = card;
4977 
4978 	spin_lock_init(&hdsp->lock);
4979 
4980 	tasklet_init(&hdsp->midi_tasklet, hdsp_midi_tasklet, (unsigned long)hdsp);
4981 
4982 	pci_read_config_word(hdsp->pci, PCI_CLASS_REVISION, &hdsp->firmware_rev);
4983 	hdsp->firmware_rev &= 0xff;
4984 
4985 	/* From Martin Bjoernsen :
4986 	    "It is important that the card's latency timer register in
4987 	    the PCI configuration space is set to a value much larger
4988 	    than 0 by the computer's BIOS or the driver.
4989 	    The windows driver always sets this 8 bit register [...]
4990 	    to its maximum 255 to avoid problems with some computers."
4991 	*/
4992 	pci_write_config_byte(hdsp->pci, PCI_LATENCY_TIMER, 0xFF);
4993 
4994 	strcpy(card->driver, "H-DSP");
4995 	strcpy(card->mixername, "Xilinx FPGA");
4996 
4997 	if (hdsp->firmware_rev < 0xa)
4998 		return -ENODEV;
4999 	else if (hdsp->firmware_rev < 0x64)
5000 		hdsp->card_name = "RME Hammerfall DSP";
5001 	else if (hdsp->firmware_rev < 0x96) {
5002 		hdsp->card_name = "RME HDSP 9652";
5003 		is_9652 = 1;
5004 	} else {
5005 		hdsp->card_name = "RME HDSP 9632";
5006 		hdsp->max_channels = 16;
5007 		is_9632 = 1;
5008 	}
5009 
5010 	if ((err = pci_enable_device(pci)) < 0)
5011 		return err;
5012 
5013 	pci_set_master(hdsp->pci);
5014 
5015 	if ((err = pci_request_regions(pci, "hdsp")) < 0)
5016 		return err;
5017 	hdsp->port = pci_resource_start(pci, 0);
5018 	if ((hdsp->iobase = ioremap_nocache(hdsp->port, HDSP_IO_EXTENT)) == NULL) {
5019 		snd_printk(KERN_ERR "Hammerfall-DSP: unable to remap region 0x%lx-0x%lx\n", hdsp->port, hdsp->port + HDSP_IO_EXTENT - 1);
5020 		return -EBUSY;
5021 	}
5022 
5023 	if (request_irq(pci->irq, snd_hdsp_interrupt, IRQF_SHARED,
5024 			"hdsp", hdsp)) {
5025 		snd_printk(KERN_ERR "Hammerfall-DSP: unable to use IRQ %d\n", pci->irq);
5026 		return -EBUSY;
5027 	}
5028 
5029 	hdsp->irq = pci->irq;
5030 	hdsp->precise_ptr = 0;
5031 	hdsp->use_midi_tasklet = 1;
5032 	hdsp->dds_value = 0;
5033 
5034 	if ((err = snd_hdsp_initialize_memory(hdsp)) < 0)
5035 		return err;
5036 
5037 	if (!is_9652 && !is_9632) {
5038 		/* we wait 2 seconds to let freshly inserted cardbus cards do their hardware init */
5039 		ssleep(2);
5040 
5041 		if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
5042 #ifdef HDSP_FW_LOADER
5043 			if ((err = hdsp_request_fw_loader(hdsp)) < 0)
5044 				/* we don't fail as this can happen
5045 				   if userspace is not ready for
5046 				   firmware upload
5047 				*/
5048 				snd_printk(KERN_ERR "Hammerfall-DSP: couldn't get firmware from userspace. try using hdsploader\n");
5049 			else
5050 				/* init is complete, we return */
5051 				return 0;
5052 #endif
5053 			/* no iobox connected, we defer initialization */
5054 			snd_printk(KERN_INFO "Hammerfall-DSP: card initialization pending : waiting for firmware\n");
5055 			if ((err = snd_hdsp_create_hwdep(card, hdsp)) < 0)
5056 				return err;
5057 			return 0;
5058 		} else {
5059 			snd_printk(KERN_INFO "Hammerfall-DSP: Firmware already present, initializing card.\n");
5060 			if (hdsp_read(hdsp, HDSP_status2Register) & HDSP_version1)
5061 				hdsp->io_type = Multiface;
5062 			else
5063 				hdsp->io_type = Digiface;
5064 		}
5065 	}
5066 
5067 	if ((err = snd_hdsp_enable_io(hdsp)) != 0)
5068 		return err;
5069 
5070 	if (is_9652)
5071 	        hdsp->io_type = H9652;
5072 
5073 	if (is_9632)
5074 		hdsp->io_type = H9632;
5075 
5076 	if ((err = snd_hdsp_create_hwdep(card, hdsp)) < 0)
5077 		return err;
5078 
5079 	snd_hdsp_initialize_channels(hdsp);
5080 	snd_hdsp_initialize_midi_flush(hdsp);
5081 
5082 	hdsp->state |= HDSP_FirmwareLoaded;
5083 
5084 	if ((err = snd_hdsp_create_alsa_devices(card, hdsp)) < 0)
5085 		return err;
5086 
5087 	return 0;
5088 }
5089 
5090 static int snd_hdsp_free(struct hdsp *hdsp)
5091 {
5092 	if (hdsp->port) {
5093 		/* stop the audio, and cancel all interrupts */
5094 		tasklet_kill(&hdsp->midi_tasklet);
5095 		hdsp->control_register &= ~(HDSP_Start|HDSP_AudioInterruptEnable|HDSP_Midi0InterruptEnable|HDSP_Midi1InterruptEnable);
5096 		hdsp_write (hdsp, HDSP_controlRegister, hdsp->control_register);
5097 	}
5098 
5099 	if (hdsp->irq >= 0)
5100 		free_irq(hdsp->irq, (void *)hdsp);
5101 
5102 	snd_hdsp_free_buffers(hdsp);
5103 
5104 	if (hdsp->iobase)
5105 		iounmap(hdsp->iobase);
5106 
5107 	if (hdsp->port)
5108 		pci_release_regions(hdsp->pci);
5109 
5110 	pci_disable_device(hdsp->pci);
5111 	return 0;
5112 }
5113 
5114 static void snd_hdsp_card_free(struct snd_card *card)
5115 {
5116 	struct hdsp *hdsp = (struct hdsp *) card->private_data;
5117 
5118 	if (hdsp)
5119 		snd_hdsp_free(hdsp);
5120 }
5121 
5122 static int __devinit snd_hdsp_probe(struct pci_dev *pci,
5123 				    const struct pci_device_id *pci_id)
5124 {
5125 	static int dev;
5126 	struct hdsp *hdsp;
5127 	struct snd_card *card;
5128 	int err;
5129 
5130 	if (dev >= SNDRV_CARDS)
5131 		return -ENODEV;
5132 	if (!enable[dev]) {
5133 		dev++;
5134 		return -ENOENT;
5135 	}
5136 
5137 	if (!(card = snd_card_new(index[dev], id[dev], THIS_MODULE, sizeof(struct hdsp))))
5138 		return -ENOMEM;
5139 
5140 	hdsp = (struct hdsp *) card->private_data;
5141 	card->private_free = snd_hdsp_card_free;
5142 	hdsp->dev = dev;
5143 	hdsp->pci = pci;
5144 	snd_card_set_dev(card, &pci->dev);
5145 
5146 	if ((err = snd_hdsp_create(card, hdsp)) < 0) {
5147 		snd_card_free(card);
5148 		return err;
5149 	}
5150 
5151 	strcpy(card->shortname, "Hammerfall DSP");
5152 	sprintf(card->longname, "%s at 0x%lx, irq %d", hdsp->card_name,
5153 		hdsp->port, hdsp->irq);
5154 
5155 	if ((err = snd_card_register(card)) < 0) {
5156 		snd_card_free(card);
5157 		return err;
5158 	}
5159 	pci_set_drvdata(pci, card);
5160 	dev++;
5161 	return 0;
5162 }
5163 
5164 static void __devexit snd_hdsp_remove(struct pci_dev *pci)
5165 {
5166 	snd_card_free(pci_get_drvdata(pci));
5167 	pci_set_drvdata(pci, NULL);
5168 }
5169 
5170 static struct pci_driver driver = {
5171 	.name =     "RME Hammerfall DSP",
5172 	.id_table = snd_hdsp_ids,
5173 	.probe =    snd_hdsp_probe,
5174 	.remove = __devexit_p(snd_hdsp_remove),
5175 };
5176 
5177 static int __init alsa_card_hdsp_init(void)
5178 {
5179 	return pci_register_driver(&driver);
5180 }
5181 
5182 static void __exit alsa_card_hdsp_exit(void)
5183 {
5184 	pci_unregister_driver(&driver);
5185 }
5186 
5187 module_init(alsa_card_hdsp_init)
5188 module_exit(alsa_card_hdsp_exit)
5189