[PATCH] PCI: removed unneeded .owner field from struct pci_driver
[linux-2.6.git] / sound / pci / emu10k1 / emu10k1x.c
1 /*
2  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
3  *  Driver EMU10K1X chips
4  *
5  *  Parts of this code were adapted from audigyls.c driver which is
6  *  Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
7  *
8  *  BUGS:
9  *    --
10  *
11  *  TODO:
12  *
13  *  Chips (SB0200 model):
14  *    - EMU10K1X-DBQ
15  *    - STAC 9708T
16  *
17  *   This program is free software; you can redistribute it and/or modify
18  *   it under the terms of the GNU General Public License as published by
19  *   the Free Software Foundation; either version 2 of the License, or
20  *   (at your option) any later version.
21  *
22  *   This program is distributed in the hope that it will be useful,
23  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
24  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
25  *   GNU General Public License for more details.
26  *
27  *   You should have received a copy of the GNU General Public License
28  *   along with this program; if not, write to the Free Software
29  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
30  *
31  */
32 #include <sound/driver.h>
33 #include <linux/init.h>
34 #include <linux/interrupt.h>
35 #include <linux/pci.h>
36 #include <linux/slab.h>
37 #include <linux/moduleparam.h>
38 #include <sound/core.h>
39 #include <sound/initval.h>
40 #include <sound/pcm.h>
41 #include <sound/ac97_codec.h>
42 #include <sound/info.h>
43 #include <sound/rawmidi.h>
44
45 MODULE_AUTHOR("Francisco Moraes <fmoraes@nc.rr.com>");
46 MODULE_DESCRIPTION("EMU10K1X");
47 MODULE_LICENSE("GPL");
48 MODULE_SUPPORTED_DEVICE("{{Dell Creative Labs,SB Live!}");
49
50 // module parameters (see "Module Parameters")
51 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
52 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
53 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
54
55 module_param_array(index, int, NULL, 0444);
56 MODULE_PARM_DESC(index, "Index value for the EMU10K1X soundcard.");
57 module_param_array(id, charp, NULL, 0444);
58 MODULE_PARM_DESC(id, "ID string for the EMU10K1X soundcard.");
59 module_param_array(enable, bool, NULL, 0444);
60 MODULE_PARM_DESC(enable, "Enable the EMU10K1X soundcard.");
61
62
63 // some definitions were borrowed from emu10k1 driver as they seem to be the same
64 /************************************************************************************************/
65 /* PCI function 0 registers, address = <val> + PCIBASE0                                         */
66 /************************************************************************************************/
67
68 #define PTR                     0x00            /* Indexed register set pointer register        */
69                                                 /* NOTE: The CHANNELNUM and ADDRESS words can   */
70                                                 /* be modified independently of each other.     */
71
72 #define DATA                    0x04            /* Indexed register set data register           */
73
74 #define IPR                     0x08            /* Global interrupt pending register            */
75                                                 /* Clear pending interrupts by writing a 1 to   */
76                                                 /* the relevant bits and zero to the other bits */
77 #define IPR_MIDITRANSBUFEMPTY   0x00000001      /* MIDI UART transmit buffer empty              */
78 #define IPR_MIDIRECVBUFEMPTY    0x00000002      /* MIDI UART receive buffer empty               */
79 #define IPR_CH_0_LOOP           0x00000800      /* Channel 0 loop                               */
80 #define IPR_CH_0_HALF_LOOP      0x00000100      /* Channel 0 half loop                          */
81 #define IPR_CAP_0_LOOP          0x00080000      /* Channel capture loop                         */
82 #define IPR_CAP_0_HALF_LOOP     0x00010000      /* Channel capture half loop                    */
83
84 #define INTE                    0x0c            /* Interrupt enable register                    */
85 #define INTE_MIDITXENABLE       0x00000001      /* Enable MIDI transmit-buffer-empty interrupts */
86 #define INTE_MIDIRXENABLE       0x00000002      /* Enable MIDI receive-buffer-empty interrupts  */
87 #define INTE_CH_0_LOOP          0x00000800      /* Channel 0 loop                               */
88 #define INTE_CH_0_HALF_LOOP     0x00000100      /* Channel 0 half loop                          */
89 #define INTE_CAP_0_LOOP         0x00080000      /* Channel capture loop                         */
90 #define INTE_CAP_0_HALF_LOOP    0x00010000      /* Channel capture half loop                    */
91
92 #define HCFG                    0x14            /* Hardware config register                     */
93
94 #define HCFG_LOCKSOUNDCACHE     0x00000008      /* 1 = Cancel bustmaster accesses to soundcache */
95                                                 /* NOTE: This should generally never be used.   */
96 #define HCFG_AUDIOENABLE        0x00000001      /* 0 = CODECs transmit zero-valued samples      */
97                                                 /* Should be set to 1 when the EMU10K1 is       */
98                                                 /* completely initialized.                      */
99 #define GPIO                    0x18            /* Defaults: 00001080-Analog, 00001000-SPDIF.   */
100
101
102 #define AC97DATA                0x1c            /* AC97 register set data register (16 bit)     */
103
104 #define AC97ADDRESS             0x1e            /* AC97 register set address register (8 bit)   */
105
106 /********************************************************************************************************/
107 /* Emu10k1x pointer-offset register set, accessed through the PTR and DATA registers                    */
108 /********************************************************************************************************/
109 #define PLAYBACK_LIST_ADDR      0x00            /* Base DMA address of a list of pointers to each period/size */
110                                                 /* One list entry: 4 bytes for DMA address, 
111                                                  * 4 bytes for period_size << 16.
112                                                  * One list entry is 8 bytes long.
113                                                  * One list entry for each period in the buffer.
114                                                  */
115 #define PLAYBACK_LIST_SIZE      0x01            /* Size of list in bytes << 16. E.g. 8 periods -> 0x00380000  */
116 #define PLAYBACK_LIST_PTR       0x02            /* Pointer to the current period being played */
117 #define PLAYBACK_DMA_ADDR       0x04            /* Playback DMA addresss */
118 #define PLAYBACK_PERIOD_SIZE    0x05            /* Playback period size */
119 #define PLAYBACK_POINTER        0x06            /* Playback period pointer. Sample currently in DAC */
120 #define PLAYBACK_UNKNOWN1       0x07
121 #define PLAYBACK_UNKNOWN2       0x08
122
123 /* Only one capture channel supported */
124 #define CAPTURE_DMA_ADDR        0x10            /* Capture DMA address */
125 #define CAPTURE_BUFFER_SIZE     0x11            /* Capture buffer size */
126 #define CAPTURE_POINTER         0x12            /* Capture buffer pointer. Sample currently in ADC */
127 #define CAPTURE_UNKNOWN         0x13
128
129 /* From 0x20 - 0x3f, last samples played on each channel */
130
131 #define TRIGGER_CHANNEL         0x40            /* Trigger channel playback                     */
132 #define TRIGGER_CHANNEL_0       0x00000001      /* Trigger channel 0                            */
133 #define TRIGGER_CHANNEL_1       0x00000002      /* Trigger channel 1                            */
134 #define TRIGGER_CHANNEL_2       0x00000004      /* Trigger channel 2                            */
135 #define TRIGGER_CAPTURE         0x00000100      /* Trigger capture channel                      */
136
137 #define ROUTING                 0x41            /* Setup sound routing ?                        */
138 #define ROUTING_FRONT_LEFT      0x00000001
139 #define ROUTING_FRONT_RIGHT     0x00000002
140 #define ROUTING_REAR_LEFT       0x00000004
141 #define ROUTING_REAR_RIGHT      0x00000008
142 #define ROUTING_CENTER_LFE      0x00010000
143
144 #define SPCS0                   0x42            /* SPDIF output Channel Status 0 register       */
145
146 #define SPCS1                   0x43            /* SPDIF output Channel Status 1 register       */
147
148 #define SPCS2                   0x44            /* SPDIF output Channel Status 2 register       */
149
150 #define SPCS_CLKACCYMASK        0x30000000      /* Clock accuracy                               */
151 #define SPCS_CLKACCY_1000PPM    0x00000000      /* 1000 parts per million                       */
152 #define SPCS_CLKACCY_50PPM      0x10000000      /* 50 parts per million                         */
153 #define SPCS_CLKACCY_VARIABLE   0x20000000      /* Variable accuracy                            */
154 #define SPCS_SAMPLERATEMASK     0x0f000000      /* Sample rate                                  */
155 #define SPCS_SAMPLERATE_44      0x00000000      /* 44.1kHz sample rate                          */
156 #define SPCS_SAMPLERATE_48      0x02000000      /* 48kHz sample rate                            */
157 #define SPCS_SAMPLERATE_32      0x03000000      /* 32kHz sample rate                            */
158 #define SPCS_CHANNELNUMMASK     0x00f00000      /* Channel number                               */
159 #define SPCS_CHANNELNUM_UNSPEC  0x00000000      /* Unspecified channel number                   */
160 #define SPCS_CHANNELNUM_LEFT    0x00100000      /* Left channel                                 */
161 #define SPCS_CHANNELNUM_RIGHT   0x00200000      /* Right channel                                */
162 #define SPCS_SOURCENUMMASK      0x000f0000      /* Source number                                */
163 #define SPCS_SOURCENUM_UNSPEC   0x00000000      /* Unspecified source number                    */
164 #define SPCS_GENERATIONSTATUS   0x00008000      /* Originality flag (see IEC-958 spec)          */
165 #define SPCS_CATEGORYCODEMASK   0x00007f00      /* Category code (see IEC-958 spec)             */
166 #define SPCS_MODEMASK           0x000000c0      /* Mode (see IEC-958 spec)                      */
167 #define SPCS_EMPHASISMASK       0x00000038      /* Emphasis                                     */
168 #define SPCS_EMPHASIS_NONE      0x00000000      /* No emphasis                                  */
169 #define SPCS_EMPHASIS_50_15     0x00000008      /* 50/15 usec 2 channel                         */
170 #define SPCS_COPYRIGHT          0x00000004      /* Copyright asserted flag -- do not modify     */
171 #define SPCS_NOTAUDIODATA       0x00000002      /* 0 = Digital audio, 1 = not audio             */
172 #define SPCS_PROFESSIONAL       0x00000001      /* 0 = Consumer (IEC-958), 1 = pro (AES3-1992)  */
173
174 #define SPDIF_SELECT            0x45            /* Enables SPDIF or Analogue outputs 0-Analogue, 0x700-SPDIF */
175
176 /* This is the MPU port on the card                                                             */
177 #define MUDATA          0x47
178 #define MUCMD           0x48
179 #define MUSTAT          MUCMD
180
181 /* From 0x50 - 0x5f, last samples captured */
182
183 /**
184  * The hardware has 3 channels for playback and 1 for capture.
185  *  - channel 0 is the front channel
186  *  - channel 1 is the rear channel
187  *  - channel 2 is the center/lfe chanel
188  * Volume is controlled by the AC97 for the front and rear channels by
189  * the PCM Playback Volume, Sigmatel Surround Playback Volume and 
190  * Surround Playback Volume. The Sigmatel 4-Speaker Stereo switch affects
191  * the front/rear channel mixing in the REAR OUT jack. When using the
192  * 4-Speaker Stereo, both front and rear channels will be mixed in the
193  * REAR OUT.
194  * The center/lfe channel has no volume control and cannot be muted during
195  * playback.
196  */
197
198 typedef struct snd_emu10k1x_voice emu10k1x_voice_t;
199 typedef struct snd_emu10k1x emu10k1x_t;
200 typedef struct snd_emu10k1x_pcm emu10k1x_pcm_t;
201
202 struct snd_emu10k1x_voice {
203         emu10k1x_t *emu;
204         int number;
205         int use;
206   
207         emu10k1x_pcm_t *epcm;
208 };
209
210 struct snd_emu10k1x_pcm {
211         emu10k1x_t *emu;
212         snd_pcm_substream_t *substream;
213         emu10k1x_voice_t *voice;
214         unsigned short running;
215 };
216
217 typedef struct {
218         struct snd_emu10k1x *emu;
219         snd_rawmidi_t *rmidi;
220         snd_rawmidi_substream_t *substream_input;
221         snd_rawmidi_substream_t *substream_output;
222         unsigned int midi_mode;
223         spinlock_t input_lock;
224         spinlock_t output_lock;
225         spinlock_t open_lock;
226         int tx_enable, rx_enable;
227         int port;
228         int ipr_tx, ipr_rx;
229         void (*interrupt)(emu10k1x_t *emu, unsigned int status);
230 } emu10k1x_midi_t;
231
232 // definition of the chip-specific record
233 struct snd_emu10k1x {
234         snd_card_t *card;
235         struct pci_dev *pci;
236
237         unsigned long port;
238         struct resource *res_port;
239         int irq;
240
241         unsigned int revision;          /* chip revision */
242         unsigned int serial;            /* serial number */
243         unsigned short model;           /* subsystem id */
244
245         spinlock_t emu_lock;
246         spinlock_t voice_lock;
247
248         ac97_t *ac97;
249         snd_pcm_t *pcm;
250
251         emu10k1x_voice_t voices[3];
252         emu10k1x_voice_t capture_voice;
253         u32 spdif_bits[3]; // SPDIF out setup
254
255         struct snd_dma_buffer dma_buffer;
256
257         emu10k1x_midi_t midi;
258 };
259
260 /* hardware definition */
261 static snd_pcm_hardware_t snd_emu10k1x_playback_hw = {
262         .info =                 (SNDRV_PCM_INFO_MMAP | 
263                                  SNDRV_PCM_INFO_INTERLEAVED |
264                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
265                                  SNDRV_PCM_INFO_MMAP_VALID),
266         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
267         .rates =                SNDRV_PCM_RATE_48000,
268         .rate_min =             48000,
269         .rate_max =             48000,
270         .channels_min =         2,
271         .channels_max =         2,
272         .buffer_bytes_max =     (32*1024),
273         .period_bytes_min =     64,
274         .period_bytes_max =     (16*1024),
275         .periods_min =          2,
276         .periods_max =          8,
277         .fifo_size =            0,
278 };
279
280 static snd_pcm_hardware_t snd_emu10k1x_capture_hw = {
281         .info =                 (SNDRV_PCM_INFO_MMAP | 
282                                  SNDRV_PCM_INFO_INTERLEAVED |
283                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
284                                  SNDRV_PCM_INFO_MMAP_VALID),
285         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
286         .rates =                SNDRV_PCM_RATE_48000,
287         .rate_min =             48000,
288         .rate_max =             48000,
289         .channels_min =         2,
290         .channels_max =         2,
291         .buffer_bytes_max =     (32*1024),
292         .period_bytes_min =     64,
293         .period_bytes_max =     (16*1024),
294         .periods_min =          2,
295         .periods_max =          2,
296         .fifo_size =            0,
297 };
298
299 static unsigned int snd_emu10k1x_ptr_read(emu10k1x_t * emu, 
300                                           unsigned int reg, 
301                                           unsigned int chn)
302 {
303         unsigned long flags;
304         unsigned int regptr, val;
305   
306         regptr = (reg << 16) | chn;
307
308         spin_lock_irqsave(&emu->emu_lock, flags);
309         outl(regptr, emu->port + PTR);
310         val = inl(emu->port + DATA);
311         spin_unlock_irqrestore(&emu->emu_lock, flags);
312         return val;
313 }
314
315 static void snd_emu10k1x_ptr_write(emu10k1x_t *emu, 
316                                    unsigned int reg, 
317                                    unsigned int chn, 
318                                    unsigned int data)
319 {
320         unsigned int regptr;
321         unsigned long flags;
322
323         regptr = (reg << 16) | chn;
324
325         spin_lock_irqsave(&emu->emu_lock, flags);
326         outl(regptr, emu->port + PTR);
327         outl(data, emu->port + DATA);
328         spin_unlock_irqrestore(&emu->emu_lock, flags);
329 }
330
331 static void snd_emu10k1x_intr_enable(emu10k1x_t *emu, unsigned int intrenb)
332 {
333         unsigned long flags;
334         unsigned int enable;
335   
336         spin_lock_irqsave(&emu->emu_lock, flags);
337         enable = inl(emu->port + INTE) | intrenb;
338         outl(enable, emu->port + INTE);
339         spin_unlock_irqrestore(&emu->emu_lock, flags);
340 }
341
342 static void snd_emu10k1x_intr_disable(emu10k1x_t *emu, unsigned int intrenb)
343 {
344         unsigned long flags;
345         unsigned int enable;
346   
347         spin_lock_irqsave(&emu->emu_lock, flags);
348         enable = inl(emu->port + INTE) & ~intrenb;
349         outl(enable, emu->port + INTE);
350         spin_unlock_irqrestore(&emu->emu_lock, flags);
351 }
352
353 static void snd_emu10k1x_gpio_write(emu10k1x_t *emu, unsigned int value)
354 {
355         unsigned long flags;
356
357         spin_lock_irqsave(&emu->emu_lock, flags);
358         outl(value, emu->port + GPIO);
359         spin_unlock_irqrestore(&emu->emu_lock, flags);
360 }
361
362 static void snd_emu10k1x_pcm_free_substream(snd_pcm_runtime_t *runtime)
363 {
364         kfree(runtime->private_data);
365 }
366
367 static void snd_emu10k1x_pcm_interrupt(emu10k1x_t *emu, emu10k1x_voice_t *voice)
368 {
369         emu10k1x_pcm_t *epcm;
370
371         if ((epcm = voice->epcm) == NULL)
372                 return;
373         if (epcm->substream == NULL)
374                 return;
375 #if 0
376         snd_printk(KERN_INFO "IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n",
377                    epcm->substream->ops->pointer(epcm->substream),
378                    snd_pcm_lib_period_bytes(epcm->substream),
379                    snd_pcm_lib_buffer_bytes(epcm->substream));
380 #endif
381         snd_pcm_period_elapsed(epcm->substream);
382 }
383
384 /* open callback */
385 static int snd_emu10k1x_playback_open(snd_pcm_substream_t *substream)
386 {
387         emu10k1x_t *chip = snd_pcm_substream_chip(substream);
388         emu10k1x_pcm_t *epcm;
389         snd_pcm_runtime_t *runtime = substream->runtime;
390         int err;
391
392         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
393                 return err;
394         }
395         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
396                 return err;
397
398         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
399         if (epcm == NULL)
400                 return -ENOMEM;
401         epcm->emu = chip;
402         epcm->substream = substream;
403   
404         runtime->private_data = epcm;
405         runtime->private_free = snd_emu10k1x_pcm_free_substream;
406   
407         runtime->hw = snd_emu10k1x_playback_hw;
408
409         return 0;
410 }
411
412 /* close callback */
413 static int snd_emu10k1x_playback_close(snd_pcm_substream_t *substream)
414 {
415         return 0;
416 }
417
418 /* hw_params callback */
419 static int snd_emu10k1x_pcm_hw_params(snd_pcm_substream_t *substream,
420                                       snd_pcm_hw_params_t * hw_params)
421 {
422         snd_pcm_runtime_t *runtime = substream->runtime;
423         emu10k1x_pcm_t *epcm = runtime->private_data;
424
425         if (! epcm->voice) {
426                 epcm->voice = &epcm->emu->voices[substream->pcm->device];
427                 epcm->voice->use = 1;
428                 epcm->voice->epcm = epcm;
429         }
430
431         return snd_pcm_lib_malloc_pages(substream,
432                                         params_buffer_bytes(hw_params));
433 }
434
435 /* hw_free callback */
436 static int snd_emu10k1x_pcm_hw_free(snd_pcm_substream_t *substream)
437 {
438         snd_pcm_runtime_t *runtime = substream->runtime;
439         emu10k1x_pcm_t *epcm;
440
441         if (runtime->private_data == NULL)
442                 return 0;
443         
444         epcm = runtime->private_data;
445
446         if (epcm->voice) {
447                 epcm->voice->use = 0;
448                 epcm->voice->epcm = NULL;
449                 epcm->voice = NULL;
450         }
451
452         return snd_pcm_lib_free_pages(substream);
453 }
454
455 /* prepare callback */
456 static int snd_emu10k1x_pcm_prepare(snd_pcm_substream_t *substream)
457 {
458         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
459         snd_pcm_runtime_t *runtime = substream->runtime;
460         emu10k1x_pcm_t *epcm = runtime->private_data;
461         int voice = epcm->voice->number;
462         u32 *table_base = (u32 *)(emu->dma_buffer.area+1024*voice);
463         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
464         int i;
465         
466         for(i=0; i < runtime->periods; i++) {
467                 *table_base++=runtime->dma_addr+(i*period_size_bytes);
468                 *table_base++=period_size_bytes<<16;
469         }
470
471         snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_ADDR, voice, emu->dma_buffer.addr+1024*voice);
472         snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_SIZE, voice, (runtime->periods - 1) << 19);
473         snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_PTR, voice, 0);
474         snd_emu10k1x_ptr_write(emu, PLAYBACK_POINTER, voice, 0);
475         snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN1, voice, 0);
476         snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN2, voice, 0);
477         snd_emu10k1x_ptr_write(emu, PLAYBACK_DMA_ADDR, voice, runtime->dma_addr);
478
479         snd_emu10k1x_ptr_write(emu, PLAYBACK_PERIOD_SIZE, voice, frames_to_bytes(runtime, runtime->period_size)<<16);
480
481         return 0;
482 }
483
484 /* trigger callback */
485 static int snd_emu10k1x_pcm_trigger(snd_pcm_substream_t *substream,
486                                     int cmd)
487 {
488         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
489         snd_pcm_runtime_t *runtime = substream->runtime;
490         emu10k1x_pcm_t *epcm = runtime->private_data;
491         int channel = epcm->voice->number;
492         int result = 0;
493
494 //      snd_printk(KERN_INFO "trigger - emu10k1x = 0x%x, cmd = %i, pointer = %d\n", (int)emu, cmd, (int)substream->ops->pointer(substream));
495
496         switch (cmd) {
497         case SNDRV_PCM_TRIGGER_START:
498                 if(runtime->periods == 2)
499                         snd_emu10k1x_intr_enable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
500                 else
501                         snd_emu10k1x_intr_enable(emu, INTE_CH_0_LOOP << channel);
502                 epcm->running = 1;
503                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|(TRIGGER_CHANNEL_0<<channel));
504                 break;
505         case SNDRV_PCM_TRIGGER_STOP:
506                 epcm->running = 0;
507                 snd_emu10k1x_intr_disable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
508                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CHANNEL_0<<channel));
509                 break;
510         default:
511                 result = -EINVAL;
512                 break;
513         }
514         return result;
515 }
516
517 /* pointer callback */
518 static snd_pcm_uframes_t
519 snd_emu10k1x_pcm_pointer(snd_pcm_substream_t *substream)
520 {
521         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
522         snd_pcm_runtime_t *runtime = substream->runtime;
523         emu10k1x_pcm_t *epcm = runtime->private_data;
524         int channel = epcm->voice->number;
525         snd_pcm_uframes_t ptr = 0, ptr1 = 0, ptr2= 0,ptr3 = 0,ptr4 = 0;
526
527         if (!epcm->running)
528                 return 0;
529
530         ptr3 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
531         ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
532         ptr4 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
533
534         if(ptr4 == 0 && ptr1 == frames_to_bytes(runtime, runtime->buffer_size))
535                 return 0;
536         
537         if (ptr3 != ptr4) 
538                 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
539         ptr2 = bytes_to_frames(runtime, ptr1);
540         ptr2 += (ptr4 >> 3) * runtime->period_size;
541         ptr = ptr2;
542
543         if (ptr >= runtime->buffer_size)
544                 ptr -= runtime->buffer_size;
545
546         return ptr;
547 }
548
549 /* operators */
550 static snd_pcm_ops_t snd_emu10k1x_playback_ops = {
551         .open =        snd_emu10k1x_playback_open,
552         .close =       snd_emu10k1x_playback_close,
553         .ioctl =       snd_pcm_lib_ioctl,
554         .hw_params =   snd_emu10k1x_pcm_hw_params,
555         .hw_free =     snd_emu10k1x_pcm_hw_free,
556         .prepare =     snd_emu10k1x_pcm_prepare,
557         .trigger =     snd_emu10k1x_pcm_trigger,
558         .pointer =     snd_emu10k1x_pcm_pointer,
559 };
560
561 /* open_capture callback */
562 static int snd_emu10k1x_pcm_open_capture(snd_pcm_substream_t *substream)
563 {
564         emu10k1x_t *chip = snd_pcm_substream_chip(substream);
565         emu10k1x_pcm_t *epcm;
566         snd_pcm_runtime_t *runtime = substream->runtime;
567         int err;
568
569         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
570                 return err;
571         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
572                 return err;
573
574         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
575         if (epcm == NULL)
576                 return -ENOMEM;
577
578         epcm->emu = chip;
579         epcm->substream = substream;
580
581         runtime->private_data = epcm;
582         runtime->private_free = snd_emu10k1x_pcm_free_substream;
583
584         runtime->hw = snd_emu10k1x_capture_hw;
585
586         return 0;
587 }
588
589 /* close callback */
590 static int snd_emu10k1x_pcm_close_capture(snd_pcm_substream_t *substream)
591 {
592         return 0;
593 }
594
595 /* hw_params callback */
596 static int snd_emu10k1x_pcm_hw_params_capture(snd_pcm_substream_t *substream,
597                                               snd_pcm_hw_params_t * hw_params)
598 {
599         snd_pcm_runtime_t *runtime = substream->runtime;
600         emu10k1x_pcm_t *epcm = runtime->private_data;
601
602         if (! epcm->voice) {
603                 if (epcm->emu->capture_voice.use)
604                         return -EBUSY;
605                 epcm->voice = &epcm->emu->capture_voice;
606                 epcm->voice->epcm = epcm;
607                 epcm->voice->use = 1;
608         }
609
610         return snd_pcm_lib_malloc_pages(substream,
611                                         params_buffer_bytes(hw_params));
612 }
613
614 /* hw_free callback */
615 static int snd_emu10k1x_pcm_hw_free_capture(snd_pcm_substream_t *substream)
616 {
617         snd_pcm_runtime_t *runtime = substream->runtime;
618
619         emu10k1x_pcm_t *epcm;
620
621         if (runtime->private_data == NULL)
622                 return 0;
623         epcm = runtime->private_data;
624
625         if (epcm->voice) {
626                 epcm->voice->use = 0;
627                 epcm->voice->epcm = NULL;
628                 epcm->voice = NULL;
629         }
630
631         return snd_pcm_lib_free_pages(substream);
632 }
633
634 /* prepare capture callback */
635 static int snd_emu10k1x_pcm_prepare_capture(snd_pcm_substream_t *substream)
636 {
637         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
638         snd_pcm_runtime_t *runtime = substream->runtime;
639
640         snd_emu10k1x_ptr_write(emu, CAPTURE_DMA_ADDR, 0, runtime->dma_addr);
641         snd_emu10k1x_ptr_write(emu, CAPTURE_BUFFER_SIZE, 0, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
642         snd_emu10k1x_ptr_write(emu, CAPTURE_POINTER, 0, 0);
643         snd_emu10k1x_ptr_write(emu, CAPTURE_UNKNOWN, 0, 0);
644
645         return 0;
646 }
647
648 /* trigger_capture callback */
649 static int snd_emu10k1x_pcm_trigger_capture(snd_pcm_substream_t *substream,
650                                             int cmd)
651 {
652         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
653         snd_pcm_runtime_t *runtime = substream->runtime;
654         emu10k1x_pcm_t *epcm = runtime->private_data;
655         int result = 0;
656
657         switch (cmd) {
658         case SNDRV_PCM_TRIGGER_START:
659                 snd_emu10k1x_intr_enable(emu, INTE_CAP_0_LOOP | 
660                                          INTE_CAP_0_HALF_LOOP);
661                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|TRIGGER_CAPTURE);
662                 epcm->running = 1;
663                 break;
664         case SNDRV_PCM_TRIGGER_STOP:
665                 epcm->running = 0;
666                 snd_emu10k1x_intr_disable(emu, INTE_CAP_0_LOOP | 
667                                           INTE_CAP_0_HALF_LOOP);
668                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CAPTURE));
669                 break;
670         default:
671                 result = -EINVAL;
672                 break;
673         }
674         return result;
675 }
676
677 /* pointer_capture callback */
678 static snd_pcm_uframes_t
679 snd_emu10k1x_pcm_pointer_capture(snd_pcm_substream_t *substream)
680 {
681         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
682         snd_pcm_runtime_t *runtime = substream->runtime;
683         emu10k1x_pcm_t *epcm = runtime->private_data;
684         snd_pcm_uframes_t ptr;
685
686         if (!epcm->running)
687                 return 0;
688
689         ptr = bytes_to_frames(runtime, snd_emu10k1x_ptr_read(emu, CAPTURE_POINTER, 0));
690         if (ptr >= runtime->buffer_size)
691                 ptr -= runtime->buffer_size;
692
693         return ptr;
694 }
695
696 static snd_pcm_ops_t snd_emu10k1x_capture_ops = {
697         .open =        snd_emu10k1x_pcm_open_capture,
698         .close =       snd_emu10k1x_pcm_close_capture,
699         .ioctl =       snd_pcm_lib_ioctl,
700         .hw_params =   snd_emu10k1x_pcm_hw_params_capture,
701         .hw_free =     snd_emu10k1x_pcm_hw_free_capture,
702         .prepare =     snd_emu10k1x_pcm_prepare_capture,
703         .trigger =     snd_emu10k1x_pcm_trigger_capture,
704         .pointer =     snd_emu10k1x_pcm_pointer_capture,
705 };
706
707 static unsigned short snd_emu10k1x_ac97_read(ac97_t *ac97,
708                                              unsigned short reg)
709 {
710         emu10k1x_t *emu = ac97->private_data;
711         unsigned long flags;
712         unsigned short val;
713   
714         spin_lock_irqsave(&emu->emu_lock, flags);
715         outb(reg, emu->port + AC97ADDRESS);
716         val = inw(emu->port + AC97DATA);
717         spin_unlock_irqrestore(&emu->emu_lock, flags);
718         return val;
719 }
720
721 static void snd_emu10k1x_ac97_write(ac97_t *ac97,
722                                     unsigned short reg, unsigned short val)
723 {
724         emu10k1x_t *emu = ac97->private_data;
725         unsigned long flags;
726   
727         spin_lock_irqsave(&emu->emu_lock, flags);
728         outb(reg, emu->port + AC97ADDRESS);
729         outw(val, emu->port + AC97DATA);
730         spin_unlock_irqrestore(&emu->emu_lock, flags);
731 }
732
733 static int snd_emu10k1x_ac97(emu10k1x_t *chip)
734 {
735         ac97_bus_t *pbus;
736         ac97_template_t ac97;
737         int err;
738         static ac97_bus_ops_t ops = {
739                 .write = snd_emu10k1x_ac97_write,
740                 .read = snd_emu10k1x_ac97_read,
741         };
742   
743         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
744                 return err;
745         pbus->no_vra = 1; /* we don't need VRA */
746
747         memset(&ac97, 0, sizeof(ac97));
748         ac97.private_data = chip;
749         ac97.scaps = AC97_SCAP_NO_SPDIF;
750         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
751 }
752
753 static int snd_emu10k1x_free(emu10k1x_t *chip)
754 {
755         snd_emu10k1x_ptr_write(chip, TRIGGER_CHANNEL, 0, 0);
756         // disable interrupts
757         outl(0, chip->port + INTE);
758         // disable audio
759         outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
760
761         // release the i/o port
762         release_and_free_resource(chip->res_port);
763
764         // release the irq
765         if (chip->irq >= 0)
766                 free_irq(chip->irq, (void *)chip);
767
768         // release the DMA
769         if (chip->dma_buffer.area) {
770                 snd_dma_free_pages(&chip->dma_buffer);
771         }
772
773         pci_disable_device(chip->pci);
774
775         // release the data
776         kfree(chip);
777         return 0;
778 }
779
780 static int snd_emu10k1x_dev_free(snd_device_t *device)
781 {
782         emu10k1x_t *chip = device->device_data;
783         return snd_emu10k1x_free(chip);
784 }
785
786 static irqreturn_t snd_emu10k1x_interrupt(int irq, void *dev_id,
787                                           struct pt_regs *regs)
788 {
789         unsigned int status;
790
791         emu10k1x_t *chip = dev_id;
792         emu10k1x_voice_t *pvoice = chip->voices;
793         int i;
794         int mask;
795
796         status = inl(chip->port + IPR);
797
798         if(status) {
799                 // capture interrupt
800                 if(status & (IPR_CAP_0_LOOP | IPR_CAP_0_HALF_LOOP)) {
801                         emu10k1x_voice_t *pvoice = &chip->capture_voice;
802                         if(pvoice->use)
803                                 snd_emu10k1x_pcm_interrupt(chip, pvoice);
804                         else
805                                 snd_emu10k1x_intr_disable(chip, 
806                                                           INTE_CAP_0_LOOP |
807                                                           INTE_CAP_0_HALF_LOOP);
808                 }
809                 
810                 mask = IPR_CH_0_LOOP|IPR_CH_0_HALF_LOOP;
811                 for(i = 0; i < 3; i++) {
812                         if(status & mask) {
813                                 if(pvoice->use)
814                                         snd_emu10k1x_pcm_interrupt(chip, pvoice);
815                                 else 
816                                         snd_emu10k1x_intr_disable(chip, mask);
817                         }
818                         pvoice++;
819                         mask <<= 1;
820                 }
821                 
822                 if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
823                         if (chip->midi.interrupt)
824                                 chip->midi.interrupt(chip, status);
825                         else
826                                 snd_emu10k1x_intr_disable(chip, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
827                 }
828                 
829                 // acknowledge the interrupt if necessary
830                 if(status)
831                         outl(status, chip->port+IPR);
832
833 //              snd_printk(KERN_INFO "interrupt %08x\n", status);
834         }
835
836         return IRQ_HANDLED;
837 }
838
839 static void snd_emu10k1x_pcm_free(snd_pcm_t *pcm)
840 {
841         emu10k1x_t *emu = pcm->private_data;
842         emu->pcm = NULL;
843         snd_pcm_lib_preallocate_free_for_all(pcm);
844 }
845
846 static int __devinit snd_emu10k1x_pcm(emu10k1x_t *emu, int device, snd_pcm_t **rpcm)
847 {
848         snd_pcm_t *pcm;
849         int err;
850         int capture = 0;
851   
852         if (rpcm)
853                 *rpcm = NULL;
854         if (device == 0)
855                 capture = 1;
856         
857         if ((err = snd_pcm_new(emu->card, "emu10k1x", device, 1, capture, &pcm)) < 0)
858                 return err;
859   
860         pcm->private_data = emu;
861         pcm->private_free = snd_emu10k1x_pcm_free;
862         
863         switch(device) {
864         case 0:
865                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
866                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1x_capture_ops);
867                 break;
868         case 1:
869         case 2:
870                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
871                 break;
872         }
873
874         pcm->info_flags = 0;
875         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
876         switch(device) {
877         case 0:
878                 strcpy(pcm->name, "EMU10K1X Front");
879                 break;
880         case 1:
881                 strcpy(pcm->name, "EMU10K1X Rear");
882                 break;
883         case 2:
884                 strcpy(pcm->name, "EMU10K1X Center/LFE");
885                 break;
886         }
887         emu->pcm = pcm;
888
889         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
890                                               snd_dma_pci_data(emu->pci), 
891                                               32*1024, 32*1024);
892   
893         if (rpcm)
894                 *rpcm = pcm;
895   
896         return 0;
897 }
898
899 static int __devinit snd_emu10k1x_create(snd_card_t *card,
900                                          struct pci_dev *pci,
901                                          emu10k1x_t **rchip)
902 {
903         emu10k1x_t *chip;
904         int err;
905         int ch;
906         static snd_device_ops_t ops = {
907                 .dev_free = snd_emu10k1x_dev_free,
908         };
909   
910         *rchip = NULL;
911   
912         if ((err = pci_enable_device(pci)) < 0)
913                 return err;
914         if (pci_set_dma_mask(pci, 0x0fffffff) < 0 ||
915             pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) {
916                 snd_printk(KERN_ERR "error to set 28bit mask DMA\n");
917                 pci_disable_device(pci);
918                 return -ENXIO;
919         }
920   
921         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
922         if (chip == NULL) {
923                 pci_disable_device(pci);
924                 return -ENOMEM;
925         }
926   
927         chip->card = card;
928         chip->pci = pci;
929         chip->irq = -1;
930
931         spin_lock_init(&chip->emu_lock);
932         spin_lock_init(&chip->voice_lock);
933   
934         chip->port = pci_resource_start(pci, 0);
935         if ((chip->res_port = request_region(chip->port, 8,
936                                              "EMU10K1X")) == NULL) { 
937                 snd_printk(KERN_ERR "emu10k1x: cannot allocate the port 0x%lx\n", chip->port);
938                 snd_emu10k1x_free(chip);
939                 return -EBUSY;
940         }
941
942         if (request_irq(pci->irq, snd_emu10k1x_interrupt,
943                         SA_INTERRUPT|SA_SHIRQ, "EMU10K1X",
944                         (void *)chip)) {
945                 snd_printk(KERN_ERR "emu10k1x: cannot grab irq %d\n", pci->irq);
946                 snd_emu10k1x_free(chip);
947                 return -EBUSY;
948         }
949         chip->irq = pci->irq;
950   
951         if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
952                                4 * 1024, &chip->dma_buffer) < 0) {
953                 snd_emu10k1x_free(chip);
954                 return -ENOMEM;
955         }
956
957         pci_set_master(pci);
958         /* read revision & serial */
959         pci_read_config_byte(pci, PCI_REVISION_ID, (char *)&chip->revision);
960         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
961         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
962         snd_printk(KERN_INFO "Model %04x Rev %08x Serial %08x\n", chip->model,
963                    chip->revision, chip->serial);
964
965         outl(0, chip->port + INTE);     
966
967         for(ch = 0; ch < 3; ch++) {
968                 chip->voices[ch].emu = chip;
969                 chip->voices[ch].number = ch;
970         }
971
972         /*
973          *  Init to 0x02109204 :
974          *  Clock accuracy    = 0     (1000ppm)
975          *  Sample Rate       = 2     (48kHz)
976          *  Audio Channel     = 1     (Left of 2)
977          *  Source Number     = 0     (Unspecified)
978          *  Generation Status = 1     (Original for Cat Code 12)
979          *  Cat Code          = 12    (Digital Signal Mixer)
980          *  Mode              = 0     (Mode 0)
981          *  Emphasis          = 0     (None)
982          *  CP                = 1     (Copyright unasserted)
983          *  AN                = 0     (Audio data)
984          *  P                 = 0     (Consumer)
985          */
986         snd_emu10k1x_ptr_write(chip, SPCS0, 0,
987                                chip->spdif_bits[0] = 
988                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
989                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
990                                SPCS_GENERATIONSTATUS | 0x00001200 |
991                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
992         snd_emu10k1x_ptr_write(chip, SPCS1, 0,
993                                chip->spdif_bits[1] = 
994                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
995                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
996                                SPCS_GENERATIONSTATUS | 0x00001200 |
997                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
998         snd_emu10k1x_ptr_write(chip, SPCS2, 0,
999                                chip->spdif_bits[2] = 
1000                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1001                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1002                                SPCS_GENERATIONSTATUS | 0x00001200 |
1003                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1004
1005         snd_emu10k1x_ptr_write(chip, SPDIF_SELECT, 0, 0x700); // disable SPDIF
1006         snd_emu10k1x_ptr_write(chip, ROUTING, 0, 0x1003F); // routing
1007         snd_emu10k1x_gpio_write(chip, 0x1080); // analog mode
1008
1009         outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
1010
1011         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1012                                   chip, &ops)) < 0) {
1013                 snd_emu10k1x_free(chip);
1014                 return err;
1015         }
1016         *rchip = chip;
1017         return 0;
1018 }
1019
1020 static void snd_emu10k1x_proc_reg_read(snd_info_entry_t *entry, 
1021                                        snd_info_buffer_t * buffer)
1022 {
1023         emu10k1x_t *emu = entry->private_data;
1024         unsigned long value,value1,value2;
1025         unsigned long flags;
1026         int i;
1027
1028         snd_iprintf(buffer, "Registers:\n\n");
1029         for(i = 0; i < 0x20; i+=4) {
1030                 spin_lock_irqsave(&emu->emu_lock, flags);
1031                 value = inl(emu->port + i);
1032                 spin_unlock_irqrestore(&emu->emu_lock, flags);
1033                 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
1034         }
1035         snd_iprintf(buffer, "\nRegisters\n\n");
1036         for(i = 0; i <= 0x48; i++) {
1037                 value = snd_emu10k1x_ptr_read(emu, i, 0);
1038                 if(i < 0x10 || (i >= 0x20 && i < 0x40)) {
1039                         value1 = snd_emu10k1x_ptr_read(emu, i, 1);
1040                         value2 = snd_emu10k1x_ptr_read(emu, i, 2);
1041                         snd_iprintf(buffer, "%02X: %08lX %08lX %08lX\n", i, value, value1, value2);
1042                 } else {
1043                         snd_iprintf(buffer, "%02X: %08lX\n", i, value);
1044                 }
1045         }
1046 }
1047
1048 static void snd_emu10k1x_proc_reg_write(snd_info_entry_t *entry, 
1049                                         snd_info_buffer_t *buffer)
1050 {
1051         emu10k1x_t *emu = entry->private_data;
1052         char line[64];
1053         unsigned int reg, channel_id , val;
1054
1055         while (!snd_info_get_line(buffer, line, sizeof(line))) {
1056                 if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
1057                         continue;
1058
1059                 if ((reg < 0x49) && (reg >=0) && (val <= 0xffffffff) 
1060                     && (channel_id >=0) && (channel_id <= 2) )
1061                         snd_emu10k1x_ptr_write(emu, reg, channel_id, val);
1062         }
1063 }
1064
1065 static int __devinit snd_emu10k1x_proc_init(emu10k1x_t * emu)
1066 {
1067         snd_info_entry_t *entry;
1068         
1069         if(! snd_card_proc_new(emu->card, "emu10k1x_regs", &entry)) {
1070                 snd_info_set_text_ops(entry, emu, 1024, snd_emu10k1x_proc_reg_read);
1071                 entry->c.text.write_size = 64;
1072                 entry->c.text.write = snd_emu10k1x_proc_reg_write;
1073                 entry->mode |= S_IWUSR;
1074                 entry->private_data = emu;
1075         }
1076         
1077         return 0;
1078 }
1079
1080 static int snd_emu10k1x_shared_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1081 {
1082         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1083         uinfo->count = 1;
1084         uinfo->value.integer.min = 0;
1085         uinfo->value.integer.max = 1;
1086         return 0;
1087 }
1088
1089 static int snd_emu10k1x_shared_spdif_get(snd_kcontrol_t * kcontrol,
1090                                          snd_ctl_elem_value_t * ucontrol)
1091 {
1092         emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1093
1094         ucontrol->value.integer.value[0] = (snd_emu10k1x_ptr_read(emu, SPDIF_SELECT, 0) == 0x700) ? 0 : 1;
1095
1096         return 0;
1097 }
1098
1099 static int snd_emu10k1x_shared_spdif_put(snd_kcontrol_t * kcontrol,
1100                                          snd_ctl_elem_value_t * ucontrol)
1101 {
1102         emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1103         unsigned int val;
1104         int change = 0;
1105
1106         val = ucontrol->value.integer.value[0] ;
1107
1108         if (val) {
1109                 // enable spdif output
1110                 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x000);
1111                 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x700);
1112                 snd_emu10k1x_gpio_write(emu, 0x1000);
1113         } else {
1114                 // disable spdif output
1115                 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x700);
1116                 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x1003F);
1117                 snd_emu10k1x_gpio_write(emu, 0x1080);
1118         }
1119         return change;
1120 }
1121
1122 static snd_kcontrol_new_t snd_emu10k1x_shared_spdif __devinitdata =
1123 {
1124         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
1125         .name =         "Analog/Digital Output Jack",
1126         .info =         snd_emu10k1x_shared_spdif_info,
1127         .get =          snd_emu10k1x_shared_spdif_get,
1128         .put =          snd_emu10k1x_shared_spdif_put
1129 };
1130
1131 static int snd_emu10k1x_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1132 {
1133         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1134         uinfo->count = 1;
1135         return 0;
1136 }
1137
1138 static int snd_emu10k1x_spdif_get(snd_kcontrol_t * kcontrol,
1139                                   snd_ctl_elem_value_t * ucontrol)
1140 {
1141         emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1142         unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1143
1144         ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff;
1145         ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff;
1146         ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff;
1147         ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff;
1148         return 0;
1149 }
1150
1151 static int snd_emu10k1x_spdif_get_mask(snd_kcontrol_t * kcontrol,
1152                                        snd_ctl_elem_value_t * ucontrol)
1153 {
1154         ucontrol->value.iec958.status[0] = 0xff;
1155         ucontrol->value.iec958.status[1] = 0xff;
1156         ucontrol->value.iec958.status[2] = 0xff;
1157         ucontrol->value.iec958.status[3] = 0xff;
1158         return 0;
1159 }
1160
1161 static int snd_emu10k1x_spdif_put(snd_kcontrol_t * kcontrol,
1162                                   snd_ctl_elem_value_t * ucontrol)
1163 {
1164         emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1165         unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1166         int change;
1167         unsigned int val;
1168
1169         val = (ucontrol->value.iec958.status[0] << 0) |
1170                 (ucontrol->value.iec958.status[1] << 8) |
1171                 (ucontrol->value.iec958.status[2] << 16) |
1172                 (ucontrol->value.iec958.status[3] << 24);
1173         change = val != emu->spdif_bits[idx];
1174         if (change) {
1175                 snd_emu10k1x_ptr_write(emu, SPCS0 + idx, 0, val);
1176                 emu->spdif_bits[idx] = val;
1177         }
1178         return change;
1179 }
1180
1181 static snd_kcontrol_new_t snd_emu10k1x_spdif_mask_control =
1182 {
1183         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
1184         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1185         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
1186         .count =        3,
1187         .info =         snd_emu10k1x_spdif_info,
1188         .get =          snd_emu10k1x_spdif_get_mask
1189 };
1190
1191 static snd_kcontrol_new_t snd_emu10k1x_spdif_control =
1192 {
1193         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1194         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1195         .count =        3,
1196         .info =         snd_emu10k1x_spdif_info,
1197         .get =          snd_emu10k1x_spdif_get,
1198         .put =          snd_emu10k1x_spdif_put
1199 };
1200
1201 static int __devinit snd_emu10k1x_mixer(emu10k1x_t *emu)
1202 {
1203         int err;
1204         snd_kcontrol_t *kctl;
1205         snd_card_t *card = emu->card;
1206
1207         if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_mask_control, emu)) == NULL)
1208                 return -ENOMEM;
1209         if ((err = snd_ctl_add(card, kctl)))
1210                 return err;
1211         if ((kctl = snd_ctl_new1(&snd_emu10k1x_shared_spdif, emu)) == NULL)
1212                 return -ENOMEM;
1213         if ((err = snd_ctl_add(card, kctl)))
1214                 return err;
1215         if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_control, emu)) == NULL)
1216                 return -ENOMEM;
1217         if ((err = snd_ctl_add(card, kctl)))
1218                 return err;
1219
1220         return 0;
1221 }
1222
1223 #define EMU10K1X_MIDI_MODE_INPUT        (1<<0)
1224 #define EMU10K1X_MIDI_MODE_OUTPUT       (1<<1)
1225
1226 static inline unsigned char mpu401_read(emu10k1x_t *emu, emu10k1x_midi_t *mpu, int idx)
1227 {
1228         return (unsigned char)snd_emu10k1x_ptr_read(emu, mpu->port + idx, 0);
1229 }
1230
1231 static inline void mpu401_write(emu10k1x_t *emu, emu10k1x_midi_t *mpu, int data, int idx)
1232 {
1233         snd_emu10k1x_ptr_write(emu, mpu->port + idx, 0, data);
1234 }
1235
1236 #define mpu401_write_data(emu, mpu, data)       mpu401_write(emu, mpu, data, 0)
1237 #define mpu401_write_cmd(emu, mpu, data)        mpu401_write(emu, mpu, data, 1)
1238 #define mpu401_read_data(emu, mpu)              mpu401_read(emu, mpu, 0)
1239 #define mpu401_read_stat(emu, mpu)              mpu401_read(emu, mpu, 1)
1240
1241 #define mpu401_input_avail(emu,mpu)     (!(mpu401_read_stat(emu,mpu) & 0x80))
1242 #define mpu401_output_ready(emu,mpu)    (!(mpu401_read_stat(emu,mpu) & 0x40))
1243
1244 #define MPU401_RESET            0xff
1245 #define MPU401_ENTER_UART       0x3f
1246 #define MPU401_ACK              0xfe
1247
1248 static void mpu401_clear_rx(emu10k1x_t *emu, emu10k1x_midi_t *mpu)
1249 {
1250         int timeout = 100000;
1251         for (; timeout > 0 && mpu401_input_avail(emu, mpu); timeout--)
1252                 mpu401_read_data(emu, mpu);
1253 #ifdef CONFIG_SND_DEBUG
1254         if (timeout <= 0)
1255                 snd_printk(KERN_ERR "cmd: clear rx timeout (status = 0x%x)\n", mpu401_read_stat(emu, mpu));
1256 #endif
1257 }
1258
1259 /*
1260
1261  */
1262
1263 static void do_emu10k1x_midi_interrupt(emu10k1x_t *emu, emu10k1x_midi_t *midi, unsigned int status)
1264 {
1265         unsigned char byte;
1266
1267         if (midi->rmidi == NULL) {
1268                 snd_emu10k1x_intr_disable(emu, midi->tx_enable | midi->rx_enable);
1269                 return;
1270         }
1271
1272         spin_lock(&midi->input_lock);
1273         if ((status & midi->ipr_rx) && mpu401_input_avail(emu, midi)) {
1274                 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1275                         mpu401_clear_rx(emu, midi);
1276                 } else {
1277                         byte = mpu401_read_data(emu, midi);
1278                         if (midi->substream_input)
1279                                 snd_rawmidi_receive(midi->substream_input, &byte, 1);
1280                 }
1281         }
1282         spin_unlock(&midi->input_lock);
1283
1284         spin_lock(&midi->output_lock);
1285         if ((status & midi->ipr_tx) && mpu401_output_ready(emu, midi)) {
1286                 if (midi->substream_output &&
1287                     snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) {
1288                         mpu401_write_data(emu, midi, byte);
1289                 } else {
1290                         snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1291                 }
1292         }
1293         spin_unlock(&midi->output_lock);
1294 }
1295
1296 static void snd_emu10k1x_midi_interrupt(emu10k1x_t *emu, unsigned int status)
1297 {
1298         do_emu10k1x_midi_interrupt(emu, &emu->midi, status);
1299 }
1300
1301 static void snd_emu10k1x_midi_cmd(emu10k1x_t * emu, emu10k1x_midi_t *midi, unsigned char cmd, int ack)
1302 {
1303         unsigned long flags;
1304         int timeout, ok;
1305
1306         spin_lock_irqsave(&midi->input_lock, flags);
1307         mpu401_write_data(emu, midi, 0x00);
1308         /* mpu401_clear_rx(emu, midi); */
1309
1310         mpu401_write_cmd(emu, midi, cmd);
1311         if (ack) {
1312                 ok = 0;
1313                 timeout = 10000;
1314                 while (!ok && timeout-- > 0) {
1315                         if (mpu401_input_avail(emu, midi)) {
1316                                 if (mpu401_read_data(emu, midi) == MPU401_ACK)
1317                                         ok = 1;
1318                         }
1319                 }
1320                 if (!ok && mpu401_read_data(emu, midi) == MPU401_ACK)
1321                         ok = 1;
1322         } else {
1323                 ok = 1;
1324         }
1325         spin_unlock_irqrestore(&midi->input_lock, flags);
1326         if (!ok)
1327                 snd_printk(KERN_ERR "midi_cmd: 0x%x failed at 0x%lx (status = 0x%x, data = 0x%x)!!!\n",
1328                            cmd, emu->port,
1329                            mpu401_read_stat(emu, midi),
1330                            mpu401_read_data(emu, midi));
1331 }
1332
1333 static int snd_emu10k1x_midi_input_open(snd_rawmidi_substream_t * substream)
1334 {
1335         emu10k1x_t *emu;
1336         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1337         unsigned long flags;
1338         
1339         emu = midi->emu;
1340         snd_assert(emu, return -ENXIO);
1341         spin_lock_irqsave(&midi->open_lock, flags);
1342         midi->midi_mode |= EMU10K1X_MIDI_MODE_INPUT;
1343         midi->substream_input = substream;
1344         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1345                 spin_unlock_irqrestore(&midi->open_lock, flags);
1346                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1);
1347                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1);
1348         } else {
1349                 spin_unlock_irqrestore(&midi->open_lock, flags);
1350         }
1351         return 0;
1352 }
1353
1354 static int snd_emu10k1x_midi_output_open(snd_rawmidi_substream_t * substream)
1355 {
1356         emu10k1x_t *emu;
1357         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1358         unsigned long flags;
1359
1360         emu = midi->emu;
1361         snd_assert(emu, return -ENXIO);
1362         spin_lock_irqsave(&midi->open_lock, flags);
1363         midi->midi_mode |= EMU10K1X_MIDI_MODE_OUTPUT;
1364         midi->substream_output = substream;
1365         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1366                 spin_unlock_irqrestore(&midi->open_lock, flags);
1367                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1);
1368                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1);
1369         } else {
1370                 spin_unlock_irqrestore(&midi->open_lock, flags);
1371         }
1372         return 0;
1373 }
1374
1375 static int snd_emu10k1x_midi_input_close(snd_rawmidi_substream_t * substream)
1376 {
1377         emu10k1x_t *emu;
1378         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1379         unsigned long flags;
1380
1381         emu = midi->emu;
1382         snd_assert(emu, return -ENXIO);
1383         spin_lock_irqsave(&midi->open_lock, flags);
1384         snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1385         midi->midi_mode &= ~EMU10K1X_MIDI_MODE_INPUT;
1386         midi->substream_input = NULL;
1387         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1388                 spin_unlock_irqrestore(&midi->open_lock, flags);
1389                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1390         } else {
1391                 spin_unlock_irqrestore(&midi->open_lock, flags);
1392         }
1393         return 0;
1394 }
1395
1396 static int snd_emu10k1x_midi_output_close(snd_rawmidi_substream_t * substream)
1397 {
1398         emu10k1x_t *emu;
1399         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1400         unsigned long flags;
1401
1402         emu = midi->emu;
1403         snd_assert(emu, return -ENXIO);
1404         spin_lock_irqsave(&midi->open_lock, flags);
1405         snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1406         midi->midi_mode &= ~EMU10K1X_MIDI_MODE_OUTPUT;
1407         midi->substream_output = NULL;
1408         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1409                 spin_unlock_irqrestore(&midi->open_lock, flags);
1410                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1411         } else {
1412                 spin_unlock_irqrestore(&midi->open_lock, flags);
1413         }
1414         return 0;
1415 }
1416
1417 static void snd_emu10k1x_midi_input_trigger(snd_rawmidi_substream_t * substream, int up)
1418 {
1419         emu10k1x_t *emu;
1420         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1421         emu = midi->emu;
1422         snd_assert(emu, return);
1423
1424         if (up)
1425                 snd_emu10k1x_intr_enable(emu, midi->rx_enable);
1426         else
1427                 snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1428 }
1429
1430 static void snd_emu10k1x_midi_output_trigger(snd_rawmidi_substream_t * substream, int up)
1431 {
1432         emu10k1x_t *emu;
1433         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1434         unsigned long flags;
1435
1436         emu = midi->emu;
1437         snd_assert(emu, return);
1438
1439         if (up) {
1440                 int max = 4;
1441                 unsigned char byte;
1442         
1443                 /* try to send some amount of bytes here before interrupts */
1444                 spin_lock_irqsave(&midi->output_lock, flags);
1445                 while (max > 0) {
1446                         if (mpu401_output_ready(emu, midi)) {
1447                                 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT) ||
1448                                     snd_rawmidi_transmit(substream, &byte, 1) != 1) {
1449                                         /* no more data */
1450                                         spin_unlock_irqrestore(&midi->output_lock, flags);
1451                                         return;
1452                                 }
1453                                 mpu401_write_data(emu, midi, byte);
1454                                 max--;
1455                         } else {
1456                                 break;
1457                         }
1458                 }
1459                 spin_unlock_irqrestore(&midi->output_lock, flags);
1460                 snd_emu10k1x_intr_enable(emu, midi->tx_enable);
1461         } else {
1462                 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1463         }
1464 }
1465
1466 /*
1467
1468  */
1469
1470 static snd_rawmidi_ops_t snd_emu10k1x_midi_output =
1471 {
1472         .open =         snd_emu10k1x_midi_output_open,
1473         .close =        snd_emu10k1x_midi_output_close,
1474         .trigger =      snd_emu10k1x_midi_output_trigger,
1475 };
1476
1477 static snd_rawmidi_ops_t snd_emu10k1x_midi_input =
1478 {
1479         .open =         snd_emu10k1x_midi_input_open,
1480         .close =        snd_emu10k1x_midi_input_close,
1481         .trigger =      snd_emu10k1x_midi_input_trigger,
1482 };
1483
1484 static void snd_emu10k1x_midi_free(snd_rawmidi_t *rmidi)
1485 {
1486         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)rmidi->private_data;
1487         midi->interrupt = NULL;
1488         midi->rmidi = NULL;
1489 }
1490
1491 static int __devinit emu10k1x_midi_init(emu10k1x_t *emu, emu10k1x_midi_t *midi, int device, char *name)
1492 {
1493         snd_rawmidi_t *rmidi;
1494         int err;
1495
1496         if ((err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi)) < 0)
1497                 return err;
1498         midi->emu = emu;
1499         spin_lock_init(&midi->open_lock);
1500         spin_lock_init(&midi->input_lock);
1501         spin_lock_init(&midi->output_lock);
1502         strcpy(rmidi->name, name);
1503         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_emu10k1x_midi_output);
1504         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_emu10k1x_midi_input);
1505         rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
1506                              SNDRV_RAWMIDI_INFO_INPUT |
1507                              SNDRV_RAWMIDI_INFO_DUPLEX;
1508         rmidi->private_data = midi;
1509         rmidi->private_free = snd_emu10k1x_midi_free;
1510         midi->rmidi = rmidi;
1511         return 0;
1512 }
1513
1514 static int __devinit snd_emu10k1x_midi(emu10k1x_t *emu)
1515 {
1516         emu10k1x_midi_t *midi = &emu->midi;
1517         int err;
1518
1519         if ((err = emu10k1x_midi_init(emu, midi, 0, "EMU10K1X MPU-401 (UART)")) < 0)
1520                 return err;
1521
1522         midi->tx_enable = INTE_MIDITXENABLE;
1523         midi->rx_enable = INTE_MIDIRXENABLE;
1524         midi->port = MUDATA;
1525         midi->ipr_tx = IPR_MIDITRANSBUFEMPTY;
1526         midi->ipr_rx = IPR_MIDIRECVBUFEMPTY;
1527         midi->interrupt = snd_emu10k1x_midi_interrupt;
1528         return 0;
1529 }
1530
1531 static int __devinit snd_emu10k1x_probe(struct pci_dev *pci,
1532                                         const struct pci_device_id *pci_id)
1533 {
1534         static int dev;
1535         snd_card_t *card;
1536         emu10k1x_t *chip;
1537         int err;
1538
1539         if (dev >= SNDRV_CARDS)
1540                 return -ENODEV;
1541         if (!enable[dev]) {
1542                 dev++;
1543                 return -ENOENT;
1544         }
1545
1546         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1547         if (card == NULL)
1548                 return -ENOMEM;
1549
1550         if ((err = snd_emu10k1x_create(card, pci, &chip)) < 0) {
1551                 snd_card_free(card);
1552                 return err;
1553         }
1554
1555         if ((err = snd_emu10k1x_pcm(chip, 0, NULL)) < 0) {
1556                 snd_card_free(card);
1557                 return err;
1558         }
1559         if ((err = snd_emu10k1x_pcm(chip, 1, NULL)) < 0) {
1560                 snd_card_free(card);
1561                 return err;
1562         }
1563         if ((err = snd_emu10k1x_pcm(chip, 2, NULL)) < 0) {
1564                 snd_card_free(card);
1565                 return err;
1566         }
1567
1568         if ((err = snd_emu10k1x_ac97(chip)) < 0) {
1569                 snd_card_free(card);
1570                 return err;
1571         }
1572
1573         if ((err = snd_emu10k1x_mixer(chip)) < 0) {
1574                 snd_card_free(card);
1575                 return err;
1576         }
1577         
1578         if ((err = snd_emu10k1x_midi(chip)) < 0) {
1579                 snd_card_free(card);
1580                 return err;
1581         }
1582
1583         snd_emu10k1x_proc_init(chip);
1584
1585         strcpy(card->driver, "EMU10K1X");
1586         strcpy(card->shortname, "Dell Sound Blaster Live!");
1587         sprintf(card->longname, "%s at 0x%lx irq %i",
1588                 card->shortname, chip->port, chip->irq);
1589
1590         if ((err = snd_card_register(card)) < 0) {
1591                 snd_card_free(card);
1592                 return err;
1593         }
1594
1595         pci_set_drvdata(pci, card);
1596         dev++;
1597         return 0;
1598 }
1599
1600 static void __devexit snd_emu10k1x_remove(struct pci_dev *pci)
1601 {
1602         snd_card_free(pci_get_drvdata(pci));
1603         pci_set_drvdata(pci, NULL);
1604 }
1605
1606 // PCI IDs
1607 static struct pci_device_id snd_emu10k1x_ids[] = {
1608         { 0x1102, 0x0006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Dell OEM version (EMU10K1) */
1609         { 0, }
1610 };
1611 MODULE_DEVICE_TABLE(pci, snd_emu10k1x_ids);
1612
1613 // pci_driver definition
1614 static struct pci_driver driver = {
1615         .name = "EMU10K1X",
1616         .id_table = snd_emu10k1x_ids,
1617         .probe = snd_emu10k1x_probe,
1618         .remove = __devexit_p(snd_emu10k1x_remove),
1619 };
1620
1621 // initialization of the module
1622 static int __init alsa_card_emu10k1x_init(void)
1623 {
1624         int err;
1625
1626         if ((err = pci_register_driver(&driver)) > 0)
1627                 return err;
1628
1629         return 0;
1630 }
1631
1632 // clean up the module
1633 static void __exit alsa_card_emu10k1x_exit(void)
1634 {
1635         pci_unregister_driver(&driver);
1636 }
1637
1638 module_init(alsa_card_emu10k1x_init)
1639 module_exit(alsa_card_emu10k1x_exit)