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Import 2.3.1pre2
[davej-history.git] / drivers / sound / es1370.c
blobcaacf3f58f7182db4d6807e342cad1acd04d2b16
1 /*****************************************************************************/
2
3 /*
4 * es1370.c -- Ensoniq ES1370/Asahi Kasei AK4531 audio driver.
5 *
6 * Copyright (C) 1998-1999 Thomas Sailer (sailer@ife.ee.ethz.ch)
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., 675 Mass Ave, Cambridge, MA 02139, USA.
21 *
22 * Special thanks to David C. Niemi
23 *
24 *
25 * Module command line parameters:
26 * joystick if 1 enables the joystick interface on the card; but it still
27 * needs a driver for joysticks connected to a standard IBM-PC
28 * joyport. It is tested with the joy-analog driver. This
29 * module must be loaded before the joystick driver. Kmod will
30 * not ensure that.
31 * lineout if 1 the LINE jack is used as an output instead of an input.
32 * LINE then contains the unmixed dsp output. This can be used
33 * to make the card a four channel one: use dsp to output two
34 * channels to LINE and dac to output the other two channels to
35 * SPKR. Set the mixer to only output synth to SPKR.
36 * micz it looks like this changes the MIC input impedance. I don't know
37 * any detail though.
38 *
39 * Note: sync mode is not yet supported (i.e. running dsp and dac from the same
40 * clock source)
41 *
42 * Supported devices:
43 * /dev/dsp standard /dev/dsp device, (mostly) OSS compatible
44 * /dev/mixer standard /dev/mixer device, (mostly) OSS compatible
45 * /dev/dsp1 additional DAC, like /dev/dsp, but output only,
46 * only 5512, 11025, 22050 and 44100 samples/s,
47 * outputs to mixer "SYNTH" setting
48 * /dev/midi simple MIDI UART interface, no ioctl
49 *
50 * NOTE: the card does not have any FM/Wavetable synthesizer, it is supposed
51 * to be done in software. That is what /dev/dac is for. By now (Q2 1998)
52 * there are several MIDI to PCM (WAV) packages, one of them is timidity.
53 *
54 * Revision history
55 * 26.03.98 0.1 Initial release
56 * 31.03.98 0.2 Fix bug in GETOSPACE
57 * 04.04.98 0.3 Make it work (again) under 2.0.33
58 * Fix mixer write operation not returning the actual
59 * settings
60 * 05.04.98 0.4 First attempt at using the new PCI stuff
61 * 29.04.98 0.5 Fix hang when ^C is pressed on amp
62 * 07.05.98 0.6 Don't double lock around stop_*() in *_release()
63 * 10.05.98 0.7 First stab at a simple midi interface (no bells&whistles)
64 * 14.05.98 0.8 Don't allow excessive interrupt rates
65 * 08.06.98 0.9 First release using Alan Cox' soundcore instead of
66 * miscdevice
67 * 05.07.98 0.10 Fixed the driver to correctly maintin OSS style volume
68 * settings (not sure if this should be standard)
69 * Fixed many references: f_flags should be f_mode
70 * -- Gerald Britton <gbritton@mit.edu>
71 * 03.08.98 0.11 Now mixer behaviour can basically be selected between
72 * "OSS documented" and "OSS actual" behaviour
73 * Fixed mixer table thanks to Hakan.Lennestal@lu.erisoft.se
74 * On module startup, set DAC2 to 11kSPS instead of 5.5kSPS,
75 * as it produces an annoying ssssh in the lower sampling rate
76 * Do not include modversions.h
77 * 22.08.98 0.12 Mixer registers actually have 5 instead of 4 bits
78 * pointed out by Itai Nahshon
79 * 31.08.98 0.13 Fix realplayer problems - dac.count issues
80 * 08.10.98 0.14 Joystick support fixed
81 * -- Oliver Neukum <c188@org.chemie.uni-muenchen.de>
82 * 10.12.98 0.15 Fix drain_dac trying to wait on not yet initialized DMA
83 * 16.12.98 0.16 Don't wake up app until there are fragsize bytes to read/write
84 * 06.01.99 0.17 remove the silly SA_INTERRUPT flag.
85 * hopefully killed the egcs section type conflict
86 * 12.03.99 0.18 cinfo.blocks should be reset after GETxPTR ioctl.
87 * reported by Johan Maes <joma@telindus.be>
88 * 22.03.99 0.19 return EAGAIN instead of EBUSY when O_NONBLOCK
89 * read/write cannot be executed
90 * 07.04.99 0.20 implemented the following ioctl's: SOUND_PCM_READ_RATE,
91 * SOUND_PCM_READ_CHANNELS, SOUND_PCM_READ_BITS;
92 * Alpha fixes reported by Peter Jones <pjones@redhat.com>
93 * Note: joystick address handling might still be wrong on archs
94 * other than i386
95 *
96 * some important things missing in Ensoniq documentation:
97 *
98 * Experimental PCLKDIV results: play the same waveforms on both DAC1 and DAC2
99 * and vary PCLKDIV to obtain zero beat.
100 * 5512sps: 254
101 * 44100sps: 30
102 * seems to be fs = 1411200/(PCLKDIV+2)
103 *
104 * should find out when curr_sample_ct is cleared and
105 * where exactly the CCB fetches data
106 *
107 * The card uses a 22.5792 MHz crystal.
108 * The LINEIN jack may be converted to an AOUT jack by
109 * setting pin 47 (XCTL0) of the ES1370 to high.
110 * Pin 48 (XCTL1) of the ES1370 presumably changes the input impedance of the
111 * MIC jack.
112 *
113 */
114
115 /*****************************************************************************/
116
117 #include <linux/config.h>
118 #include <linux/version.h>
119 #include <linux/module.h>
120 #include <linux/string.h>
121 #include <linux/ioport.h>
122 #include <linux/sched.h>
123 #include <linux/delay.h>
124 #include <linux/sound.h>
125 #include <linux/malloc.h>
126 #include <linux/soundcard.h>
127 #include <linux/pci.h>
128 #include <asm/io.h>
129 #include <asm/dma.h>
130 #include <linux/init.h>
131 #include <linux/poll.h>
132 #include <asm/spinlock.h>
133 #include <asm/uaccess.h>
134 #include <asm/hardirq.h>
135
136 /* --------------------------------------------------------------------- */
137
138 #undef OSS_DOCUMENTED_MIXER_SEMANTICS
139 #define DBG(x) {}
140 /*#define DBG(x) {x}*/
141
142 /* --------------------------------------------------------------------- */
143
144 #ifndef PCI_VENDOR_ID_ENSONIQ
145 #define PCI_VENDOR_ID_ENSONIQ 0x1274
146 #endif
147 #ifndef PCI_DEVICE_ID_ENSONIQ_ES1370
148 #define PCI_DEVICE_ID_ENSONIQ_ES1370 0x5000
149 #endif
150
151 #define ES1370_MAGIC ((PCI_VENDOR_ID_ENSONIQ<<16)|PCI_DEVICE_ID_ENSONIQ_ES1370)
152
153 #define ES1370_EXTENT 0x40
154 #define JOY_EXTENT 8
155
156 #define ES1370_REG_CONTROL 0x00
157 #define ES1370_REG_STATUS 0x04
158 #define ES1370_REG_UART_DATA 0x08
159 #define ES1370_REG_UART_STATUS 0x09
160 #define ES1370_REG_UART_CONTROL 0x09
161 #define ES1370_REG_UART_TEST 0x0a
162 #define ES1370_REG_MEMPAGE 0x0c
163 #define ES1370_REG_CODEC 0x10
164 #define ES1370_REG_SERIAL_CONTROL 0x20
165 #define ES1370_REG_DAC1_SCOUNT 0x24
166 #define ES1370_REG_DAC2_SCOUNT 0x28
167 #define ES1370_REG_ADC_SCOUNT 0x2c
168
169 #define ES1370_REG_DAC1_FRAMEADR 0xc30
170 #define ES1370_REG_DAC1_FRAMECNT 0xc34
171 #define ES1370_REG_DAC2_FRAMEADR 0xc38
172 #define ES1370_REG_DAC2_FRAMECNT 0xc3c
173 #define ES1370_REG_ADC_FRAMEADR 0xd30
174 #define ES1370_REG_ADC_FRAMECNT 0xd34
175
176 #define ES1370_FMT_U8_MONO 0
177 #define ES1370_FMT_U8_STEREO 1
178 #define ES1370_FMT_S16_MONO 2
179 #define ES1370_FMT_S16_STEREO 3
180 #define ES1370_FMT_STEREO 1
181 #define ES1370_FMT_S16 2
182 #define ES1370_FMT_MASK 3
183
184 static const unsigned sample_size[] = { 1, 2, 2, 4 };
185 static const unsigned sample_shift[] = { 0, 1, 1, 2 };
186
187 static const unsigned dac1_samplerate[] = { 5512, 11025, 22050, 44100 };
188
189 #define DAC2_SRTODIV(x) (((1411200+(x)/2)/(x))-2)
190 #define DAC2_DIVTOSR(x) (1411200/((x)+2))
191
192 #define CTRL_ADC_STOP 0x80000000 /* 1 = ADC stopped */
193 #define CTRL_XCTL1 0x40000000 /* ? mic impedance */
194 #define CTRL_OPEN 0x20000000 /* no function, can be read and written */
195 #define CTRL_PCLKDIV 0x1fff0000 /* ADC/DAC2 clock divider */
196 #define CTRL_SH_PCLKDIV 16
197 #define CTRL_MSFMTSEL 0x00008000 /* MPEG serial data fmt: 0 = Sony, 1 = I2S */
198 #define CTRL_M_SBB 0x00004000 /* DAC2 clock: 0 = PCLKDIV, 1 = MPEG */
199 #define CTRL_WTSRSEL 0x00003000 /* DAC1 clock freq: 0=5512, 1=11025, 2=22050, 3=44100 */
200 #define CTRL_SH_WTSRSEL 12
201 #define CTRL_DAC_SYNC 0x00000800 /* 1 = DAC2 runs off DAC1 clock */
202 #define CTRL_CCB_INTRM 0x00000400 /* 1 = CCB "voice" ints enabled */
203 #define CTRL_M_CB 0x00000200 /* recording source: 0 = ADC, 1 = MPEG */
204 #define CTRL_XCTL0 0x00000100 /* 0 = Line in, 1 = Line out */
205 #define CTRL_BREQ 0x00000080 /* 1 = test mode (internal mem test) */
206 #define CTRL_DAC1_EN 0x00000040 /* enable DAC1 */
207 #define CTRL_DAC2_EN 0x00000020 /* enable DAC2 */
208 #define CTRL_ADC_EN 0x00000010 /* enable ADC */
209 #define CTRL_UART_EN 0x00000008 /* enable MIDI uart */
210 #define CTRL_JYSTK_EN 0x00000004 /* enable Joystick port (presumably at address 0x200) */
211 #define CTRL_CDC_EN 0x00000002 /* enable serial (CODEC) interface */
212 #define CTRL_SERR_DIS 0x00000001 /* 1 = disable PCI SERR signal */
213
214 #define STAT_INTR 0x80000000 /* wired or of all interrupt bits */
215 #define STAT_CSTAT 0x00000400 /* 1 = codec busy or codec write in progress */
216 #define STAT_CBUSY 0x00000200 /* 1 = codec busy */
217 #define STAT_CWRIP 0x00000100 /* 1 = codec write in progress */
218 #define STAT_VC 0x00000060 /* CCB int source, 0=DAC1, 1=DAC2, 2=ADC, 3=undef */
219 #define STAT_SH_VC 5
220 #define STAT_MCCB 0x00000010 /* CCB int pending */
221 #define STAT_UART 0x00000008 /* UART int pending */
222 #define STAT_DAC1 0x00000004 /* DAC1 int pending */
223 #define STAT_DAC2 0x00000002 /* DAC2 int pending */
224 #define STAT_ADC 0x00000001 /* ADC int pending */
225
226 #define USTAT_RXINT 0x80 /* UART rx int pending */
227 #define USTAT_TXINT 0x04 /* UART tx int pending */
228 #define USTAT_TXRDY 0x02 /* UART tx ready */
229 #define USTAT_RXRDY 0x01 /* UART rx ready */
230
231 #define UCTRL_RXINTEN 0x80 /* 1 = enable RX ints */
232 #define UCTRL_TXINTEN 0x60 /* TX int enable field mask */
233 #define UCTRL_ENA_TXINT 0x20 /* enable TX int */
234 #define UCTRL_CNTRL 0x03 /* control field */
235 #define UCTRL_CNTRL_SWR 0x03 /* software reset command */
236
237 #define SCTRL_P2ENDINC 0x00380000 /* */
238 #define SCTRL_SH_P2ENDINC 19
239 #define SCTRL_P2STINC 0x00070000 /* */
240 #define SCTRL_SH_P2STINC 16
241 #define SCTRL_R1LOOPSEL 0x00008000 /* 0 = loop mode */
242 #define SCTRL_P2LOOPSEL 0x00004000 /* 0 = loop mode */
243 #define SCTRL_P1LOOPSEL 0x00002000 /* 0 = loop mode */
244 #define SCTRL_P2PAUSE 0x00001000 /* 1 = pause mode */
245 #define SCTRL_P1PAUSE 0x00000800 /* 1 = pause mode */
246 #define SCTRL_R1INTEN 0x00000400 /* enable interrupt */
247 #define SCTRL_P2INTEN 0x00000200 /* enable interrupt */
248 #define SCTRL_P1INTEN 0x00000100 /* enable interrupt */
249 #define SCTRL_P1SCTRLD 0x00000080 /* reload sample count register for DAC1 */
250 #define SCTRL_P2DACSEN 0x00000040 /* 1 = DAC2 play back last sample when disabled */
251 #define SCTRL_R1SEB 0x00000020 /* 1 = 16bit */
252 #define SCTRL_R1SMB 0x00000010 /* 1 = stereo */
253 #define SCTRL_R1FMT 0x00000030 /* format mask */
254 #define SCTRL_SH_R1FMT 4
255 #define SCTRL_P2SEB 0x00000008 /* 1 = 16bit */
256 #define SCTRL_P2SMB 0x00000004 /* 1 = stereo */
257 #define SCTRL_P2FMT 0x0000000c /* format mask */
258 #define SCTRL_SH_P2FMT 2
259 #define SCTRL_P1SEB 0x00000002 /* 1 = 16bit */
260 #define SCTRL_P1SMB 0x00000001 /* 1 = stereo */
261 #define SCTRL_P1FMT 0x00000003 /* format mask */
262 #define SCTRL_SH_P1FMT 0
263
264 /* misc stuff */
265
266 #define FMODE_DAC 4 /* slight misuse of mode_t */
267
268 /* MIDI buffer sizes */
269
270 #define MIDIINBUF 256
271 #define MIDIOUTBUF 256
272
273 #define FMODE_MIDI_SHIFT 3
274 #define FMODE_MIDI_READ (FMODE_READ << FMODE_MIDI_SHIFT)
275 #define FMODE_MIDI_WRITE (FMODE_WRITE << FMODE_MIDI_SHIFT)
276
277 #define SND_DEV_DSP16 5
278
279 /* --------------------------------------------------------------------- */
280
281 struct es1370_state {
282 /* magic */
283 unsigned int magic;
284
285 /* we keep sb cards in a linked list */
286 struct es1370_state *next;
287
288 /* soundcore stuff */
289 int dev_audio;
290 int dev_mixer;
291 int dev_dac;
292 int dev_midi;
293
294 /* hardware resources */
295 unsigned long io; /* long for SPARC */
296 unsigned int irq;
297
298 /* mixer registers; there is no HW readback */
299 struct {
300 unsigned short vol[10];
301 unsigned int recsrc;
302 unsigned int modcnt;
303 unsigned short micpreamp;
304 } mix;
305
306 /* wave stuff */
307 unsigned ctrl;
308 unsigned sctrl;
309
310 spinlock_t lock;
311 struct semaphore open_sem;
312 mode_t open_mode;
313 wait_queue_head_t open_wait;
314
315 struct dmabuf {
316 void *rawbuf;
317 unsigned buforder;
318 unsigned numfrag;
319 unsigned fragshift;
320 unsigned hwptr, swptr;
321 unsigned total_bytes;
322 int count;
323 unsigned error; /* over/underrun */
324 wait_queue_head_t wait;
325 /* redundant, but makes calculations easier */
326 unsigned fragsize;
327 unsigned dmasize;
328 unsigned fragsamples;
329 /* OSS stuff */
330 unsigned mapped:1;
331 unsigned ready:1;
332 unsigned endcleared:1;
333 unsigned ossfragshift;
334 int ossmaxfrags;
335 unsigned subdivision;
336 } dma_dac1, dma_dac2, dma_adc;
337
338 /* midi stuff */
339 struct {
340 unsigned ird, iwr, icnt;
341 unsigned ord, owr, ocnt;
342 wait_queue_head_t iwait;
343 wait_queue_head_t owait;
344 unsigned char ibuf[MIDIINBUF];
345 unsigned char obuf[MIDIOUTBUF];
346 } midi;
347 };
348
349 /* --------------------------------------------------------------------- */
350
351 static struct es1370_state *devs = NULL;
352
353 /* --------------------------------------------------------------------- */
354
355 extern inline unsigned ld2(unsigned int x)
356 {
357 unsigned r = 0;
358
359 if (x >= 0x10000) {
360 x >>= 16;
361 r += 16;
362 }
363 if (x >= 0x100) {
364 x >>= 8;
365 r += 8;
366 }
367 if (x >= 0x10) {
368 x >>= 4;
369 r += 4;
370 }
371 if (x >= 4) {
372 x >>= 2;
373 r += 2;
374 }
375 if (x >= 2)
376 r++;
377 return r;
378 }
379
380 /* --------------------------------------------------------------------- */
381
382 static void wrcodec(struct es1370_state *s, unsigned char idx, unsigned char data)
383 {
384 unsigned long tmo = jiffies + HZ/10;
385
386 do {
387 if (!(inl(s->io+ES1370_REG_STATUS) & STAT_CSTAT)) {
388 outw((((unsigned short)idx)<<8)|data, s->io+ES1370_REG_CODEC);
389 return;
390 }
391 schedule();
392 } while ((signed)(tmo-jiffies) > 0);
393 printk(KERN_ERR "es1370: write to codec register timeout\n");
394 }
395
396 /* --------------------------------------------------------------------- */
397
398 extern inline void stop_adc(struct es1370_state *s)
399 {
400 unsigned long flags;
401
402 spin_lock_irqsave(&s->lock, flags);
403 s->ctrl &= ~CTRL_ADC_EN;
404 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
405 spin_unlock_irqrestore(&s->lock, flags);
406 }
407
408 extern inline void stop_dac1(struct es1370_state *s)
409 {
410 unsigned long flags;
411
412 spin_lock_irqsave(&s->lock, flags);
413 s->ctrl &= ~CTRL_DAC1_EN;
414 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
415 spin_unlock_irqrestore(&s->lock, flags);
416 }
417
418 extern inline void stop_dac2(struct es1370_state *s)
419 {
420 unsigned long flags;
421
422 spin_lock_irqsave(&s->lock, flags);
423 s->ctrl &= ~CTRL_DAC2_EN;
424 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
425 spin_unlock_irqrestore(&s->lock, flags);
426 }
427
428 static void start_dac1(struct es1370_state *s)
429 {
430 unsigned long flags;
431 unsigned fragremain, fshift;
432
433 spin_lock_irqsave(&s->lock, flags);
434 if (!(s->ctrl & CTRL_DAC1_EN) && (s->dma_dac1.mapped || s->dma_dac1.count > 0)
435 && s->dma_dac1.ready) {
436 s->ctrl |= CTRL_DAC1_EN;
437 s->sctrl = (s->sctrl & ~(SCTRL_P1LOOPSEL | SCTRL_P1PAUSE | SCTRL_P1SCTRLD)) | SCTRL_P1INTEN;
438 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
439 fragremain = ((- s->dma_dac1.hwptr) & (s->dma_dac1.fragsize-1));
440 fshift = sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
441 if (fragremain < 2*fshift)
442 fragremain = s->dma_dac1.fragsize;
443 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_DAC1_SCOUNT);
444 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
445 outl((s->dma_dac1.fragsize >> fshift) - 1, s->io+ES1370_REG_DAC1_SCOUNT);
446 }
447 spin_unlock_irqrestore(&s->lock, flags);
448 }
449
450 static void start_dac2(struct es1370_state *s)
451 {
452 unsigned long flags;
453 unsigned fragremain, fshift;
454
455 spin_lock_irqsave(&s->lock, flags);
456 if (!(s->ctrl & CTRL_DAC2_EN) && (s->dma_dac2.mapped || s->dma_dac2.count > 0)
457 && s->dma_dac2.ready) {
458 s->ctrl |= CTRL_DAC2_EN;
459 s->sctrl = (s->sctrl & ~(SCTRL_P2LOOPSEL | SCTRL_P2PAUSE | SCTRL_P2DACSEN |
460 SCTRL_P2ENDINC | SCTRL_P2STINC)) | SCTRL_P2INTEN |
461 (((s->sctrl & SCTRL_P2FMT) ? 2 : 1) << SCTRL_SH_P2ENDINC) |
462 (0 << SCTRL_SH_P2STINC);
463 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
464 fragremain = ((- s->dma_dac2.hwptr) & (s->dma_dac2.fragsize-1));
465 fshift = sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
466 if (fragremain < 2*fshift)
467 fragremain = s->dma_dac2.fragsize;
468 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_DAC2_SCOUNT);
469 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
470 outl((s->dma_dac2.fragsize >> fshift) - 1, s->io+ES1370_REG_DAC2_SCOUNT);
471 }
472 spin_unlock_irqrestore(&s->lock, flags);
473 }
474
475 static void start_adc(struct es1370_state *s)
476 {
477 unsigned long flags;
478 unsigned fragremain, fshift;
479
480 spin_lock_irqsave(&s->lock, flags);
481 if (!(s->ctrl & CTRL_ADC_EN) && (s->dma_adc.mapped || s->dma_adc.count < (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize))
482 && s->dma_adc.ready) {
483 s->ctrl |= CTRL_ADC_EN;
484 s->sctrl = (s->sctrl & ~SCTRL_R1LOOPSEL) | SCTRL_R1INTEN;
485 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
486 fragremain = ((- s->dma_adc.hwptr) & (s->dma_adc.fragsize-1));
487 fshift = sample_shift[(s->sctrl & SCTRL_R1FMT) >> SCTRL_SH_R1FMT];
488 if (fragremain < 2*fshift)
489 fragremain = s->dma_adc.fragsize;
490 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_ADC_SCOUNT);
491 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
492 outl((s->dma_adc.fragsize >> fshift) - 1, s->io+ES1370_REG_ADC_SCOUNT);
493 }
494 spin_unlock_irqrestore(&s->lock, flags);
495 }
496
497 /* --------------------------------------------------------------------- */
498
499 #define DMABUF_DEFAULTORDER (17-PAGE_SHIFT)
500 #define DMABUF_MINORDER 1
501
502 extern inline void dealloc_dmabuf(struct dmabuf *db)
503 {
504 unsigned long map, mapend;
505
506 if (db->rawbuf) {
507 /* undo marking the pages as reserved */
508 mapend = MAP_NR(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
509 for (map = MAP_NR(db->rawbuf); map <= mapend; map++)
510 clear_bit(PG_reserved, &mem_map[map].flags);
511 free_pages((unsigned long)db->rawbuf, db->buforder);
512 }
513 db->rawbuf = NULL;
514 db->mapped = db->ready = 0;
515 }
516
517 static int prog_dmabuf(struct es1370_state *s, struct dmabuf *db, unsigned rate, unsigned fmt, unsigned reg)
518 {
519 int order;
520 unsigned bytepersec;
521 unsigned bufs;
522 unsigned long map, mapend;
523
524 db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
525 if (!db->rawbuf) {
526 db->ready = db->mapped = 0;
527 for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER && !db->rawbuf; order--)
528 db->rawbuf = (void *)__get_free_pages(GFP_KERNEL, order);
529 if (!db->rawbuf)
530 return -ENOMEM;
531 db->buforder = order;
532 /* now mark the pages as reserved; otherwise remap_page_range doesn't do what we want */
533 mapend = MAP_NR(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
534 for (map = MAP_NR(db->rawbuf); map <= mapend; map++)
535 set_bit(PG_reserved, &mem_map[map].flags);
536 }
537 fmt &= ES1370_FMT_MASK;
538 bytepersec = rate << sample_shift[fmt];
539 bufs = PAGE_SIZE << db->buforder;
540 if (db->ossfragshift) {
541 if ((1000 << db->ossfragshift) < bytepersec)
542 db->fragshift = ld2(bytepersec/1000);
543 else
544 db->fragshift = db->ossfragshift;
545 } else {
546 db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1));
547 if (db->fragshift < 3)
548 db->fragshift = 3;
549 }
550 db->numfrag = bufs >> db->fragshift;
551 while (db->numfrag < 4 && db->fragshift > 3) {
552 db->fragshift--;
553 db->numfrag = bufs >> db->fragshift;
554 }
555 db->fragsize = 1 << db->fragshift;
556 if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
557 db->numfrag = db->ossmaxfrags;
558 db->fragsamples = db->fragsize >> sample_shift[fmt];
559 db->dmasize = db->numfrag << db->fragshift;
560 memset(db->rawbuf, (fmt & ES1370_FMT_S16) ? 0 : 0x80, db->dmasize);
561 outl((reg >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
562 outl(virt_to_bus(db->rawbuf), s->io+(reg & 0xff));
563 outl((db->dmasize >> 2)-1, s->io+((reg + 4) & 0xff));
564 db->ready = 1;
565 return 0;
566 }
567
568 extern inline int prog_dmabuf_adc(struct es1370_state *s)
569 {
570 stop_adc(s);
571 return prog_dmabuf(s, &s->dma_adc, DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV),
572 (s->sctrl >> SCTRL_SH_R1FMT) & ES1370_FMT_MASK, ES1370_REG_ADC_FRAMEADR);
573 }
574
575 extern inline int prog_dmabuf_dac2(struct es1370_state *s)
576 {
577 stop_dac2(s);
578 return prog_dmabuf(s, &s->dma_dac2, DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV),
579 (s->sctrl >> SCTRL_SH_P2FMT) & ES1370_FMT_MASK, ES1370_REG_DAC2_FRAMEADR);
580 }
581
582 extern inline int prog_dmabuf_dac1(struct es1370_state *s)
583 {
584 stop_dac1(s);
585 return prog_dmabuf(s, &s->dma_dac1, dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL],
586 (s->sctrl >> SCTRL_SH_P1FMT) & ES1370_FMT_MASK, ES1370_REG_DAC1_FRAMEADR);
587 }
588
589 extern inline unsigned get_hwptr(struct es1370_state *s, struct dmabuf *db, unsigned reg)
590 {
591 unsigned hwptr, diff;
592
593 outl((reg >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
594 hwptr = (inl(s->io+(reg & 0xff)) >> 14) & 0x3fffc;
595 diff = (db->dmasize + hwptr - db->hwptr) % db->dmasize;
596 db->hwptr = hwptr;
597 return diff;
598 }
599
600 extern inline void clear_advance(void *buf, unsigned bsize, unsigned bptr, unsigned len, unsigned char c)
601 {
602 if (bptr + len > bsize) {
603 unsigned x = bsize - bptr;
604 memset(((char *)buf) + bptr, c, x);
605 bptr = 0;
606 len -= x;
607 }
608 memset(((char *)buf) + bptr, c, len);
609 }
610
611 /* call with spinlock held! */
612 static void es1370_update_ptr(struct es1370_state *s)
613 {
614 int diff;
615
616 /* update ADC pointer */
617 if (s->ctrl & CTRL_ADC_EN) {
618 diff = get_hwptr(s, &s->dma_adc, ES1370_REG_ADC_FRAMECNT);
619 s->dma_adc.total_bytes += diff;
620 s->dma_adc.count += diff;
621 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
622 wake_up(&s->dma_adc.wait);
623 if (!s->dma_adc.mapped) {
624 if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) {
625 s->ctrl &= ~CTRL_ADC_EN;
626 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
627 s->dma_adc.error++;
628 }
629 }
630 }
631 /* update DAC1 pointer */
632 if (s->ctrl & CTRL_DAC1_EN) {
633 diff = get_hwptr(s, &s->dma_dac1, ES1370_REG_DAC1_FRAMECNT);
634 s->dma_dac1.total_bytes += diff;
635 if (s->dma_dac1.mapped) {
636 s->dma_dac1.count += diff;
637 if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
638 wake_up(&s->dma_dac1.wait);
639 } else {
640 s->dma_dac1.count -= diff;
641 if (s->dma_dac1.count <= 0) {
642 s->ctrl &= ~CTRL_DAC1_EN;
643 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
644 s->dma_dac1.error++;
645 } else if (s->dma_dac1.count <= (signed)s->dma_dac1.fragsize && !s->dma_dac1.endcleared) {
646 clear_advance(s->dma_dac1.rawbuf, s->dma_dac1.dmasize, s->dma_dac1.swptr,
647 s->dma_dac1.fragsize, (s->sctrl & SCTRL_P1SEB) ? 0 : 0x80);
648 s->dma_dac1.endcleared = 1;
649 }
650 if (s->dma_dac1.count + (signed)s->dma_dac1.fragsize <= (signed)s->dma_dac1.dmasize)
651 wake_up(&s->dma_dac1.wait);
652 }
653 }
654 /* update DAC2 pointer */
655 if (s->ctrl & CTRL_DAC2_EN) {
656 diff = get_hwptr(s, &s->dma_dac2, ES1370_REG_DAC2_FRAMECNT);
657 s->dma_dac2.total_bytes += diff;
658 if (s->dma_dac2.mapped) {
659 s->dma_dac2.count += diff;
660 if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
661 wake_up(&s->dma_dac2.wait);
662 } else {
663 s->dma_dac2.count -= diff;
664 if (s->dma_dac2.count <= 0) {
665 s->ctrl &= ~CTRL_DAC2_EN;
666 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
667 s->dma_dac2.error++;
668 } else if (s->dma_dac2.count <= (signed)s->dma_dac2.fragsize && !s->dma_dac2.endcleared) {
669 clear_advance(s->dma_dac2.rawbuf, s->dma_dac2.dmasize, s->dma_dac2.swptr,
670 s->dma_dac2.fragsize, (s->sctrl & SCTRL_P2SEB) ? 0 : 0x80);
671 s->dma_dac2.endcleared = 1;
672 }
673 if (s->dma_dac2.count + (signed)s->dma_dac2.fragsize <= (signed)s->dma_dac2.dmasize)
674 wake_up(&s->dma_dac2.wait);
675 }
676 }
677 }
678
679 /* hold spinlock for the following! */
680 static void es1370_handle_midi(struct es1370_state *s)
681 {
682 unsigned char ch;
683 int wake;
684
685 if (!(s->ctrl & CTRL_UART_EN))
686 return;
687 wake = 0;
688 while (inb(s->io+ES1370_REG_UART_STATUS) & USTAT_RXRDY) {
689 ch = inb(s->io+ES1370_REG_UART_DATA);
690 if (s->midi.icnt < MIDIINBUF) {
691 s->midi.ibuf[s->midi.iwr] = ch;
692 s->midi.iwr = (s->midi.iwr + 1) % MIDIINBUF;
693 s->midi.icnt++;
694 }
695 wake = 1;
696 }
697 if (wake)
698 wake_up(&s->midi.iwait);
699 wake = 0;
700 while ((inb(s->io+ES1370_REG_UART_STATUS) & USTAT_TXRDY) && s->midi.ocnt > 0) {
701 outb(s->midi.obuf[s->midi.ord], s->io+ES1370_REG_UART_DATA);
702 s->midi.ord = (s->midi.ord + 1) % MIDIOUTBUF;
703 s->midi.ocnt--;
704 if (s->midi.ocnt < MIDIOUTBUF-16)
705 wake = 1;
706 }
707 if (wake)
708 wake_up(&s->midi.owait);
709 outb((s->midi.ocnt > 0) ? UCTRL_RXINTEN | UCTRL_ENA_TXINT : UCTRL_RXINTEN, s->io+ES1370_REG_UART_CONTROL);
710 }
711
712 static void es1370_interrupt(int irq, void *dev_id, struct pt_regs *regs)
713 {
714 struct es1370_state *s = (struct es1370_state *)dev_id;
715 unsigned int intsrc, sctl;
716
717 /* fastpath out, to ease interrupt sharing */
718 intsrc = inl(s->io+ES1370_REG_STATUS);
719 if (!(intsrc & 0x80000000))
720 return;
721 spin_lock(&s->lock);
722 /* clear audio interrupts first */
723 sctl = s->sctrl;
724 if (intsrc & STAT_ADC)
725 sctl &= ~SCTRL_R1INTEN;
726 if (intsrc & STAT_DAC1)
727 sctl &= ~SCTRL_P1INTEN;
728 if (intsrc & STAT_DAC2)
729 sctl &= ~SCTRL_P2INTEN;
730 outl(sctl, s->io+ES1370_REG_SERIAL_CONTROL);
731 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
732 es1370_update_ptr(s);
733 es1370_handle_midi(s);
734 spin_unlock(&s->lock);
735 }
736
737 /* --------------------------------------------------------------------- */
738
739 static const char invalid_magic[] = KERN_CRIT "es1370: invalid magic value\n";
740
741 #define VALIDATE_STATE(s) \
742 ({ \
743 if (!(s) || (s)->magic != ES1370_MAGIC) { \
744 printk(invalid_magic); \
745 return -ENXIO; \
746 } \
747 })
748
749 /* --------------------------------------------------------------------- */
750
751 static const struct {
752 unsigned volidx:4;
753 unsigned left:4;
754 unsigned right:4;
755 unsigned stereo:1;
756 unsigned recmask:13;
757 unsigned avail:1;
758 } mixtable[SOUND_MIXER_NRDEVICES] = {
759 [SOUND_MIXER_VOLUME] = { 0, 0x0, 0x1, 1, 0x0000, 1 }, /* master */
760 [SOUND_MIXER_PCM] = { 1, 0x2, 0x3, 1, 0x0400, 1 }, /* voice */
761 [SOUND_MIXER_SYNTH] = { 2, 0x4, 0x5, 1, 0x0060, 1 }, /* FM */
762 [SOUND_MIXER_CD] = { 3, 0x6, 0x7, 1, 0x0006, 1 }, /* CD */
763 [SOUND_MIXER_LINE] = { 4, 0x8, 0x9, 1, 0x0018, 1 }, /* Line */
764 [SOUND_MIXER_LINE1] = { 5, 0xa, 0xb, 1, 0x1800, 1 }, /* AUX */
765 [SOUND_MIXER_LINE2] = { 6, 0xc, 0x0, 0, 0x0100, 1 }, /* Mono1 */
766 [SOUND_MIXER_LINE3] = { 7, 0xd, 0x0, 0, 0x0200, 1 }, /* Mono2 */
767 [SOUND_MIXER_MIC] = { 8, 0xe, 0x0, 0, 0x0001, 1 }, /* Mic */
768 [SOUND_MIXER_OGAIN] = { 9, 0xf, 0x0, 0, 0x0000, 1 } /* mono out */
769 };
770
771 static int mixer_ioctl(struct es1370_state *s, unsigned int cmd, unsigned long arg)
772 {
773 unsigned long flags;
774 int i, val, j;
775 unsigned char l, r, rl, rr;
776
777 VALIDATE_STATE(s);
778 if (cmd == SOUND_MIXER_PRIVATE1) {
779 /* enable/disable/query mixer preamp */
780 get_user_ret(val, (int *)arg, -EFAULT);
781 if (val != -1) {
782 s->mix.micpreamp = !!val;
783 wrcodec(s, 0x19, s->mix.micpreamp);
784 }
785 return put_user(s->mix.micpreamp, (int *)arg);
786 }
787 if (cmd == SOUND_MIXER_PRIVATE2) {
788 /* enable/disable/query use of linein as second lineout */
789 get_user_ret(val, (int *)arg, -EFAULT);
790 if (val != -1) {
791 spin_lock_irqsave(&s->lock, flags);
792 if (val)
793 s->ctrl |= CTRL_XCTL0;
794 else
795 s->ctrl &= ~CTRL_XCTL0;
796 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
797 spin_unlock_irqrestore(&s->lock, flags);
798 }
799 return put_user((s->ctrl & CTRL_XCTL0) ? 1 : 0, (int *)arg);
800 }
801 if (cmd == SOUND_MIXER_PRIVATE3) {
802 /* enable/disable/query microphone impedance setting */
803 get_user_ret(val, (int *)arg, -EFAULT);
804 if (val != -1) {
805 spin_lock_irqsave(&s->lock, flags);
806 if (val)
807 s->ctrl |= CTRL_XCTL1;
808 else
809 s->ctrl &= ~CTRL_XCTL1;
810 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
811 spin_unlock_irqrestore(&s->lock, flags);
812 }
813 return put_user((s->ctrl & CTRL_XCTL1) ? 1 : 0, (int *)arg);
814 }
815 if (cmd == SOUND_MIXER_INFO) {
816 mixer_info info;
817 strncpy(info.id, "ES1370", sizeof(info.id));
818 strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
819 info.modify_counter = s->mix.modcnt;
820 if (copy_to_user((void *)arg, &info, sizeof(info)))
821 return -EFAULT;
822 return 0;
823 }
824 if (cmd == SOUND_OLD_MIXER_INFO) {
825 _old_mixer_info info;
826 strncpy(info.id, "ES1370", sizeof(info.id));
827 strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
828 if (copy_to_user((void *)arg, &info, sizeof(info)))
829 return -EFAULT;
830 return 0;
831 }
832 if (cmd == OSS_GETVERSION)
833 return put_user(SOUND_VERSION, (int *)arg);
834 if (_IOC_TYPE(cmd) != 'M' || _IOC_SIZE(cmd) != sizeof(int))
835 return -EINVAL;
836 if (_IOC_DIR(cmd) == _IOC_READ) {
837 switch (_IOC_NR(cmd)) {
838 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
839 return put_user(s->mix.recsrc, (int *)arg);
840
841 case SOUND_MIXER_DEVMASK: /* Arg contains a bit for each supported device */
842 for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
843 if (mixtable[i].avail)
844 val |= 1 << i;
845 return put_user(val, (int *)arg);
846
847 case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
848 for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
849 if (mixtable[i].recmask)
850 val |= 1 << i;
851 return put_user(val, (int *)arg);
852
853 case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
854 for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
855 if (mixtable[i].stereo)
856 val |= 1 << i;
857 return put_user(val, (int *)arg);
858
859 case SOUND_MIXER_CAPS:
860 return put_user(0, (int *)arg);
861
862 default:
863 i = _IOC_NR(cmd);
864 if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
865 return -EINVAL;
866 return put_user(s->mix.vol[mixtable[i].volidx], (int *)arg);
867 }
868 }
869 if (_IOC_DIR(cmd) != (_IOC_READ|_IOC_WRITE))
870 return -EINVAL;
871 s->mix.modcnt++;
872 switch (_IOC_NR(cmd)) {
873 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
874 get_user_ret(val, (int *)arg, -EFAULT);
875 for (j = i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
876 if (!(val & (1 << i)))
877 continue;
878 if (!mixtable[i].recmask) {
879 val &= ~(1 << i);
880 continue;
881 }
882 j |= mixtable[i].recmask;
883 }
884 s->mix.recsrc = val;
885 wrcodec(s, 0x12, j & 0xd5);
886 wrcodec(s, 0x13, j & 0xaa);
887 wrcodec(s, 0x14, (j >> 8) & 0x17);
888 wrcodec(s, 0x15, (j >> 8) & 0x0f);
889 i = (j & 0x37f) | ((j << 1) & 0x3000) | 0xc30;
890 wrcodec(s, 0x10, i);
891 wrcodec(s, 0x11, i >> 8);
892 return 0;
893
894 default:
895 i = _IOC_NR(cmd);
896 if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
897 return -EINVAL;
898 get_user_ret(val, (int *)arg, -EFAULT);
899 l = val & 0xff;
900 if (l > 100)
901 l = 100;
902 if (mixtable[i].stereo) {
903 r = (val >> 8) & 0xff;
904 if (r > 100)
905 r = 100;
906 if (l < 7) {
907 rl = 0x80;
908 l = 0;
909 } else {
910 rl = 31 - ((l - 7) / 3);
911 l = (31 - rl) * 3 + 7;
912 }
913 if (r < 7) {
914 rr = 0x80;
915 r = 0;
916 } else {
917 rr = 31 - ((r - 7) / 3);
918 r = (31 - rr) * 3 + 7;
919 }
920 wrcodec(s, mixtable[i].right, rr);
921 } else {
922 if (mixtable[i].left == 15) {
923 if (l < 2) {
924 rr = rl = 0x80;
925 r = l = 0;
926 } else {
927 rl = 7 - ((l - 2) / 14);
928 r = l = (7 - rl) * 14 + 2;
929 }
930 } else {
931 if (l < 7) {
932 rl = 0x80;
933 r = l = 0;
934 } else {
935 rl = 31 - ((l - 7) / 3);
936 r = l = (31 - rl) * 3 + 7;
937 }
938 }
939 }
940 wrcodec(s, mixtable[i].left, rl);
941 #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
942 s->mix.vol[mixtable[i].volidx] = ((unsigned int)r << 8) | l;
943 #else
944 s->mix.vol[mixtable[i].volidx] = val;
945 #endif
946 return put_user(s->mix.vol[mixtable[i].volidx], (int *)arg);
947 }
948 }
949
950 /* --------------------------------------------------------------------- */
951
952 static loff_t es1370_llseek(struct file *file, loff_t offset, int origin)
953 {
954 return -ESPIPE;
955 }
956
957 /* --------------------------------------------------------------------- */
958
959 static int es1370_open_mixdev(struct inode *inode, struct file *file)
960 {
961 int minor = MINOR(inode->i_rdev);
962 struct es1370_state *s = devs;
963
964 while (s && s->dev_mixer != minor)
965 s = s->next;
966 if (!s)
967 return -ENODEV;
968 VALIDATE_STATE(s);
969 file->private_data = s;
970 MOD_INC_USE_COUNT;
971 return 0;
972 }
973
974 static int es1370_release_mixdev(struct inode *inode, struct file *file)
975 {
976 struct es1370_state *s = (struct es1370_state *)file->private_data;
977
978 VALIDATE_STATE(s);
979 MOD_DEC_USE_COUNT;
980 return 0;
981 }
982
983 static int es1370_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
984 {
985 return mixer_ioctl((struct es1370_state *)file->private_data, cmd, arg);
986 }
987
988 static /*const*/ struct file_operations es1370_mixer_fops = {
989 &es1370_llseek,
990 NULL, /* read */
991 NULL, /* write */
992 NULL, /* readdir */
993 NULL, /* poll */
994 &es1370_ioctl_mixdev,
995 NULL, /* mmap */
996 &es1370_open_mixdev,
997 NULL, /* flush */
998 &es1370_release_mixdev,
999 NULL, /* fsync */
1000 NULL, /* fasync */
1001 NULL, /* check_media_change */
1002 NULL, /* revalidate */
1003 NULL, /* lock */
1004 };
1005
1006 /* --------------------------------------------------------------------- */
1007
1008 static int drain_dac1(struct es1370_state *s, int nonblock)
1009 {
1010 DECLARE_WAITQUEUE(wait, current);
1011 unsigned long flags;
1012 int count, tmo;
1013
1014 if (s->dma_dac1.mapped || !s->dma_dac1.ready)
1015 return 0;
1016 current->state = TASK_INTERRUPTIBLE;
1017 add_wait_queue(&s->dma_dac1.wait, &wait);
1018 for (;;) {
1019 spin_lock_irqsave(&s->lock, flags);
1020 count = s->dma_dac1.count;
1021 spin_unlock_irqrestore(&s->lock, flags);
1022 if (count <= 0)
1023 break;
1024 if (signal_pending(current))
1025 break;
1026 if (nonblock) {
1027 remove_wait_queue(&s->dma_dac1.wait, &wait);
1028 current->state = TASK_RUNNING;
1029 return -EBUSY;
1030 }
1031 tmo = (count * HZ) / dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL];
1032 tmo >>= sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
1033 if (!schedule_timeout(tmo ? : 1) && tmo)
1034 DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
1035 }
1036 remove_wait_queue(&s->dma_dac1.wait, &wait);
1037 current->state = TASK_RUNNING;
1038 if (signal_pending(current))
1039 return -ERESTARTSYS;
1040 return 0;
1041 }
1042
1043 static int drain_dac2(struct es1370_state *s, int nonblock)
1044 {
1045 DECLARE_WAITQUEUE(wait, current);
1046 unsigned long flags;
1047 int count, tmo;
1048
1049 if (s->dma_dac2.mapped || !s->dma_dac2.ready)
1050 return 0;
1051 current->state = TASK_INTERRUPTIBLE;
1052 add_wait_queue(&s->dma_dac2.wait, &wait);
1053 for (;;) {
1054 spin_lock_irqsave(&s->lock, flags);
1055 count = s->dma_dac2.count;
1056 spin_unlock_irqrestore(&s->lock, flags);
1057 if (count <= 0)
1058 break;
1059 if (signal_pending(current))
1060 break;
1061 if (nonblock) {
1062 remove_wait_queue(&s->dma_dac2.wait, &wait);
1063 current->state = TASK_RUNNING;
1064 return -EBUSY;
1065 }
1066 tmo = (count * HZ) / DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV);
1067 tmo >>= sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
1068 if (!schedule_timeout(tmo ? : 1) && tmo)
1069 DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
1070 }
1071 remove_wait_queue(&s->dma_dac2.wait, &wait);
1072 current->state = TASK_RUNNING;
1073 if (signal_pending(current))
1074 return -ERESTARTSYS;
1075 return 0;
1076 }
1077
1078 /* --------------------------------------------------------------------- */
1079
1080 static ssize_t es1370_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
1081 {
1082 struct es1370_state *s = (struct es1370_state *)file->private_data;
1083 ssize_t ret;
1084 unsigned long flags;
1085 unsigned swptr;
1086 int cnt;
1087
1088 VALIDATE_STATE(s);
1089 if (ppos != &file->f_pos)
1090 return -ESPIPE;
1091 if (s->dma_adc.mapped)
1092 return -ENXIO;
1093 if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
1094 return ret;
1095 if (!access_ok(VERIFY_WRITE, buffer, count))
1096 return -EFAULT;
1097 ret = 0;
1098 while (count > 0) {
1099 spin_lock_irqsave(&s->lock, flags);
1100 swptr = s->dma_adc.swptr;
1101 cnt = s->dma_adc.dmasize-swptr;
1102 if (s->dma_adc.count < cnt)
1103 cnt = s->dma_adc.count;
1104 spin_unlock_irqrestore(&s->lock, flags);
1105 if (cnt > count)
1106 cnt = count;
1107 if (cnt <= 0) {
1108 start_adc(s);
1109 if (file->f_flags & O_NONBLOCK)
1110 return ret ? ret : -EAGAIN;
1111 interruptible_sleep_on(&s->dma_adc.wait);
1112 if (signal_pending(current))
1113 return ret ? ret : -ERESTARTSYS;
1114 continue;
1115 }
1116 if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt))
1117 return ret ? ret : -EFAULT;
1118 swptr = (swptr + cnt) % s->dma_adc.dmasize;
1119 spin_lock_irqsave(&s->lock, flags);
1120 s->dma_adc.swptr = swptr;
1121 s->dma_adc.count -= cnt;
1122 spin_unlock_irqrestore(&s->lock, flags);
1123 count -= cnt;
1124 buffer += cnt;
1125 ret += cnt;
1126 start_adc(s);
1127 }
1128 return ret;
1129 }
1130
1131 static ssize_t es1370_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
1132 {
1133 struct es1370_state *s = (struct es1370_state *)file->private_data;
1134 ssize_t ret;
1135 unsigned long flags;
1136 unsigned swptr;
1137 int cnt;
1138
1139 VALIDATE_STATE(s);
1140 if (ppos != &file->f_pos)
1141 return -ESPIPE;
1142 if (s->dma_dac2.mapped)
1143 return -ENXIO;
1144 if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
1145 return ret;
1146 if (!access_ok(VERIFY_READ, buffer, count))
1147 return -EFAULT;
1148 ret = 0;
1149 while (count > 0) {
1150 spin_lock_irqsave(&s->lock, flags);
1151 if (s->dma_dac2.count < 0) {
1152 s->dma_dac2.count = 0;
1153 s->dma_dac2.swptr = s->dma_dac2.hwptr;
1154 }
1155 swptr = s->dma_dac2.swptr;
1156 cnt = s->dma_dac2.dmasize-swptr;
1157 if (s->dma_dac2.count + cnt > s->dma_dac2.dmasize)
1158 cnt = s->dma_dac2.dmasize - s->dma_dac2.count;
1159 spin_unlock_irqrestore(&s->lock, flags);
1160 if (cnt > count)
1161 cnt = count;
1162 if (cnt <= 0) {
1163 start_dac2(s);
1164 if (file->f_flags & O_NONBLOCK)
1165 return ret ? ret : -EAGAIN;
1166 interruptible_sleep_on(&s->dma_dac2.wait);
1167 if (signal_pending(current))
1168 return ret ? ret : -ERESTARTSYS;
1169 continue;
1170 }
1171 if (copy_from_user(s->dma_dac2.rawbuf + swptr, buffer, cnt))
1172 return ret ? ret : -EFAULT;
1173 swptr = (swptr + cnt) % s->dma_dac2.dmasize;
1174 spin_lock_irqsave(&s->lock, flags);
1175 s->dma_dac2.swptr = swptr;
1176 s->dma_dac2.count += cnt;
1177 s->dma_dac2.endcleared = 0;
1178 spin_unlock_irqrestore(&s->lock, flags);
1179 count -= cnt;
1180 buffer += cnt;
1181 ret += cnt;
1182 start_dac2(s);
1183 }
1184 return ret;
1185 }
1186
1187 static unsigned int es1370_poll(struct file *file, struct poll_table_struct *wait)
1188 {
1189 struct es1370_state *s = (struct es1370_state *)file->private_data;
1190 unsigned long flags;
1191 unsigned int mask = 0;
1192
1193 VALIDATE_STATE(s);
1194 if (file->f_mode & FMODE_WRITE)
1195 poll_wait(file, &s->dma_dac2.wait, wait);
1196 if (file->f_mode & FMODE_READ)
1197 poll_wait(file, &s->dma_adc.wait, wait);
1198 spin_lock_irqsave(&s->lock, flags);
1199 es1370_update_ptr(s);
1200 if (file->f_mode & FMODE_READ) {
1201 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
1202 mask |= POLLIN | POLLRDNORM;
1203 }
1204 if (file->f_mode & FMODE_WRITE) {
1205 if (s->dma_dac2.mapped) {
1206 if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
1207 mask |= POLLOUT | POLLWRNORM;
1208 } else {
1209 if ((signed)s->dma_dac2.dmasize >= s->dma_dac2.count + (signed)s->dma_dac2.fragsize)
1210 mask |= POLLOUT | POLLWRNORM;
1211 }
1212 }
1213 spin_unlock_irqrestore(&s->lock, flags);
1214 return mask;
1215 }
1216
1217 static int es1370_mmap(struct file *file, struct vm_area_struct *vma)
1218 {
1219 struct es1370_state *s = (struct es1370_state *)file->private_data;
1220 struct dmabuf *db;
1221 int ret;
1222 unsigned long size;
1223
1224 VALIDATE_STATE(s);
1225 if (vma->vm_flags & VM_WRITE) {
1226 if ((ret = prog_dmabuf_dac2(s)) != 0)
1227 return ret;
1228 db = &s->dma_dac2;
1229 } else if (vma->vm_flags & VM_READ) {
1230 if ((ret = prog_dmabuf_adc(s)) != 0)
1231 return ret;
1232 db = &s->dma_adc;
1233 } else
1234 return -EINVAL;
1235 if (vma->vm_offset != 0)
1236 return -EINVAL;
1237 size = vma->vm_end - vma->vm_start;
1238 if (size > (PAGE_SIZE << db->buforder))
1239 return -EINVAL;
1240 if (remap_page_range(vma->vm_start, virt_to_phys(db->rawbuf), size, vma->vm_page_prot))
1241 return -EAGAIN;
1242 db->mapped = 1;
1243 return 0;
1244 }
1245
1246 static int es1370_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1247 {
1248 struct es1370_state *s = (struct es1370_state *)file->private_data;
1249 unsigned long flags;
1250 audio_buf_info abinfo;
1251 count_info cinfo;
1252 int val, mapped, ret;
1253
1254 VALIDATE_STATE(s);
1255 mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac2.mapped) ||
1256 ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
1257 switch (cmd) {
1258 case OSS_GETVERSION:
1259 return put_user(SOUND_VERSION, (int *)arg);
1260
1261 case SNDCTL_DSP_SYNC:
1262 if (file->f_mode & FMODE_WRITE)
1263 return drain_dac2(s, 0/*file->f_flags & O_NONBLOCK*/);
1264 return 0;
1265
1266 case SNDCTL_DSP_SETDUPLEX:
1267 return 0;
1268
1269 case SNDCTL_DSP_GETCAPS:
1270 return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg);
1271
1272 case SNDCTL_DSP_RESET:
1273 if (file->f_mode & FMODE_WRITE) {
1274 stop_dac2(s);
1275 synchronize_irq();
1276 s->dma_dac2.swptr = s->dma_dac2.hwptr = s->dma_dac2.count = s->dma_dac2.total_bytes = 0;
1277 }
1278 if (file->f_mode & FMODE_READ) {
1279 stop_adc(s);
1280 synchronize_irq();
1281 s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
1282 }
1283 return 0;
1284
1285 case SNDCTL_DSP_SPEED:
1286 get_user_ret(val, (int *)arg, -EFAULT);
1287 if (val >= 0) {
1288 if (s->open_mode & (~file->f_mode) & (FMODE_READ|FMODE_WRITE))
1289 return -EINVAL;
1290 if (val < 4000)
1291 val = 4000;
1292 if (val > 50000)
1293 val = 50000;
1294 stop_adc(s);
1295 stop_dac2(s);
1296 s->dma_adc.ready = s->dma_dac2.ready = 0;
1297 spin_lock_irqsave(&s->lock, flags);
1298 s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(val) << CTRL_SH_PCLKDIV);
1299 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1300 spin_unlock_irqrestore(&s->lock, flags);
1301 }
1302 return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), (int *)arg);
1303
1304 case SNDCTL_DSP_STEREO:
1305 get_user_ret(val, (int *)arg, -EFAULT);
1306 if (file->f_mode & FMODE_READ) {
1307 stop_adc(s);
1308 s->dma_adc.ready = 0;
1309 spin_lock_irqsave(&s->lock, flags);
1310 if (val)
1311 s->sctrl |= SCTRL_R1SMB;
1312 else
1313 s->sctrl &= ~SCTRL_R1SMB;
1314 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1315 spin_unlock_irqrestore(&s->lock, flags);
1316 }
1317 if (file->f_mode & FMODE_WRITE) {
1318 stop_dac2(s);
1319 s->dma_dac2.ready = 0;
1320 spin_lock_irqsave(&s->lock, flags);
1321 if (val)
1322 s->sctrl |= SCTRL_P2SMB;
1323 else
1324 s->sctrl &= ~SCTRL_P2SMB;
1325 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1326 spin_unlock_irqrestore(&s->lock, flags);
1327 }
1328 return 0;
1329
1330 case SNDCTL_DSP_CHANNELS:
1331 get_user_ret(val, (int *)arg, -EFAULT);
1332 if (val != 0) {
1333 if (file->f_mode & FMODE_READ) {
1334 stop_adc(s);
1335 s->dma_adc.ready = 0;
1336 spin_lock_irqsave(&s->lock, flags);
1337 if (val >= 2)
1338 s->sctrl |= SCTRL_R1SMB;
1339 else
1340 s->sctrl &= ~SCTRL_R1SMB;
1341 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1342 spin_unlock_irqrestore(&s->lock, flags);
1343 }
1344 if (file->f_mode & FMODE_WRITE) {
1345 stop_dac2(s);
1346 s->dma_dac2.ready = 0;
1347 spin_lock_irqsave(&s->lock, flags);
1348 if (val >= 2)
1349 s->sctrl |= SCTRL_P2SMB;
1350 else
1351 s->sctrl &= ~SCTRL_P2SMB;
1352 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1353 spin_unlock_irqrestore(&s->lock, flags);
1354 }
1355 }
1356 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ? 2 : 1, (int *)arg);
1357
1358 case SNDCTL_DSP_GETFMTS: /* Returns a mask */
1359 return put_user(AFMT_S16_LE|AFMT_U8, (int *)arg);
1360
1361 case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
1362 get_user_ret(val, (int *)arg, -EFAULT);
1363 if (val != AFMT_QUERY) {
1364 if (file->f_mode & FMODE_READ) {
1365 stop_adc(s);
1366 s->dma_adc.ready = 0;
1367 spin_lock_irqsave(&s->lock, flags);
1368 if (val == AFMT_S16_LE)
1369 s->sctrl |= SCTRL_R1SEB;
1370 else
1371 s->sctrl &= ~SCTRL_R1SEB;
1372 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1373 spin_unlock_irqrestore(&s->lock, flags);
1374 }
1375 if (file->f_mode & FMODE_WRITE) {
1376 stop_dac2(s);
1377 s->dma_dac2.ready = 0;
1378 spin_lock_irqsave(&s->lock, flags);
1379 if (val == AFMT_S16_LE)
1380 s->sctrl |= SCTRL_P2SEB;
1381 else
1382 s->sctrl &= ~SCTRL_P2SEB;
1383 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1384 spin_unlock_irqrestore(&s->lock, flags);
1385 }
1386 }
1387 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
1388 AFMT_S16_LE : AFMT_U8, (int *)arg);
1389
1390 case SNDCTL_DSP_POST:
1391 return 0;
1392
1393 case SNDCTL_DSP_GETTRIGGER:
1394 val = 0;
1395 if (file->f_mode & FMODE_READ && s->ctrl & CTRL_ADC_EN)
1396 val |= PCM_ENABLE_INPUT;
1397 if (file->f_mode & FMODE_WRITE && s->ctrl & CTRL_DAC2_EN)
1398 val |= PCM_ENABLE_OUTPUT;
1399 return put_user(val, (int *)arg);
1400
1401 case SNDCTL_DSP_SETTRIGGER:
1402 get_user_ret(val, (int *)arg, -EFAULT);
1403 if (file->f_mode & FMODE_READ) {
1404 if (val & PCM_ENABLE_INPUT) {
1405 if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
1406 return ret;
1407 start_adc(s);
1408 } else
1409 stop_adc(s);
1410 }
1411 if (file->f_mode & FMODE_WRITE) {
1412 if (val & PCM_ENABLE_OUTPUT) {
1413 if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
1414 return ret;
1415 start_dac2(s);
1416 } else
1417 stop_dac2(s);
1418 }
1419 return 0;
1420
1421 case SNDCTL_DSP_GETOSPACE:
1422 if (!(file->f_mode & FMODE_WRITE))
1423 return -EINVAL;
1424 if (!(s->ctrl & CTRL_DAC2_EN) && (val = prog_dmabuf_dac2(s)) != 0)
1425 return val;
1426 spin_lock_irqsave(&s->lock, flags);
1427 es1370_update_ptr(s);
1428 abinfo.fragsize = s->dma_dac2.fragsize;
1429 abinfo.bytes = s->dma_dac2.dmasize - s->dma_dac2.count;
1430 abinfo.fragstotal = s->dma_dac2.numfrag;
1431 abinfo.fragments = abinfo.bytes >> s->dma_dac2.fragshift;
1432 spin_unlock_irqrestore(&s->lock, flags);
1433 return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1434
1435 case SNDCTL_DSP_GETISPACE:
1436 if (!(file->f_mode & FMODE_READ))
1437 return -EINVAL;
1438 if (!(s->ctrl & CTRL_ADC_EN) && (val = prog_dmabuf_adc(s)) != 0)
1439 return val;
1440 spin_lock_irqsave(&s->lock, flags);
1441 es1370_update_ptr(s);
1442 abinfo.fragsize = s->dma_adc.fragsize;
1443 abinfo.bytes = s->dma_adc.count;
1444 abinfo.fragstotal = s->dma_adc.numfrag;
1445 abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
1446 spin_unlock_irqrestore(&s->lock, flags);
1447 return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1448
1449 case SNDCTL_DSP_NONBLOCK:
1450 file->f_flags |= O_NONBLOCK;
1451 return 0;
1452
1453 case SNDCTL_DSP_GETODELAY:
1454 if (!(file->f_mode & FMODE_WRITE))
1455 return -EINVAL;
1456 spin_lock_irqsave(&s->lock, flags);
1457 es1370_update_ptr(s);
1458 val = s->dma_dac2.count;
1459 spin_unlock_irqrestore(&s->lock, flags);
1460 return put_user(val, (int *)arg);
1461
1462 case SNDCTL_DSP_GETIPTR:
1463 if (!(file->f_mode & FMODE_READ))
1464 return -EINVAL;
1465 spin_lock_irqsave(&s->lock, flags);
1466 es1370_update_ptr(s);
1467 cinfo.bytes = s->dma_adc.total_bytes;
1468 cinfo.blocks = s->dma_adc.count >> s->dma_adc.fragshift;
1469 cinfo.ptr = s->dma_adc.hwptr;
1470 if (s->dma_adc.mapped)
1471 s->dma_adc.count &= s->dma_adc.fragsize-1;
1472 spin_unlock_irqrestore(&s->lock, flags);
1473 return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
1474
1475 case SNDCTL_DSP_GETOPTR:
1476 if (!(file->f_mode & FMODE_WRITE))
1477 return -EINVAL;
1478 spin_lock_irqsave(&s->lock, flags);
1479 es1370_update_ptr(s);
1480 cinfo.bytes = s->dma_dac2.total_bytes;
1481 cinfo.blocks = s->dma_dac2.count >> s->dma_dac2.fragshift;
1482 cinfo.ptr = s->dma_dac2.hwptr;
1483 if (s->dma_dac2.mapped)
1484 s->dma_dac2.count &= s->dma_dac2.fragsize-1;
1485 spin_unlock_irqrestore(&s->lock, flags);
1486 return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
1487
1488 case SNDCTL_DSP_GETBLKSIZE:
1489 if (file->f_mode & FMODE_WRITE) {
1490 if ((val = prog_dmabuf_dac2(s)))
1491 return val;
1492 return put_user(s->dma_dac2.fragsize, (int *)arg);
1493 }
1494 if ((val = prog_dmabuf_adc(s)))
1495 return val;
1496 return put_user(s->dma_adc.fragsize, (int *)arg);
1497
1498 case SNDCTL_DSP_SETFRAGMENT:
1499 get_user_ret(val, (int *)arg, -EFAULT);
1500 if (file->f_mode & FMODE_READ) {
1501 s->dma_adc.ossfragshift = val & 0xffff;
1502 s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
1503 if (s->dma_adc.ossfragshift < 4)
1504 s->dma_adc.ossfragshift = 4;
1505 if (s->dma_adc.ossfragshift > 15)
1506 s->dma_adc.ossfragshift = 15;
1507 if (s->dma_adc.ossmaxfrags < 4)
1508 s->dma_adc.ossmaxfrags = 4;
1509 }
1510 if (file->f_mode & FMODE_WRITE) {
1511 s->dma_dac2.ossfragshift = val & 0xffff;
1512 s->dma_dac2.ossmaxfrags = (val >> 16) & 0xffff;
1513 if (s->dma_dac2.ossfragshift < 4)
1514 s->dma_dac2.ossfragshift = 4;
1515 if (s->dma_dac2.ossfragshift > 15)
1516 s->dma_dac2.ossfragshift = 15;
1517 if (s->dma_dac2.ossmaxfrags < 4)
1518 s->dma_dac2.ossmaxfrags = 4;
1519 }
1520 return 0;
1521
1522 case SNDCTL_DSP_SUBDIVIDE:
1523 if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
1524 (file->f_mode & FMODE_WRITE && s->dma_dac2.subdivision))
1525 return -EINVAL;
1526 get_user_ret(val, (int *)arg, -EFAULT);
1527 if (val != 1 && val != 2 && val != 4)
1528 return -EINVAL;
1529 if (file->f_mode & FMODE_READ)
1530 s->dma_adc.subdivision = val;
1531 if (file->f_mode & FMODE_WRITE)
1532 s->dma_dac2.subdivision = val;
1533 return 0;
1534
1535 case SOUND_PCM_READ_RATE:
1536 return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), (int *)arg);
1537
1538 case SOUND_PCM_READ_CHANNELS:
1539 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ?
1540 2 : 1, (int *)arg);
1541
1542 case SOUND_PCM_READ_BITS:
1543 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
1544 16 : 8, (int *)arg);
1545
1546 case SOUND_PCM_WRITE_FILTER:
1547 case SNDCTL_DSP_SETSYNCRO:
1548 case SOUND_PCM_READ_FILTER:
1549 return -EINVAL;
1550
1551 }
1552 return mixer_ioctl(s, cmd, arg);
1553 }
1554
1555 static int es1370_open(struct inode *inode, struct file *file)
1556 {
1557 int minor = MINOR(inode->i_rdev);
1558 struct es1370_state *s = devs;
1559 unsigned long flags;
1560
1561 while (s && ((s->dev_audio ^ minor) & ~0xf))
1562 s = s->next;
1563 if (!s)
1564 return -ENODEV;
1565 VALIDATE_STATE(s);
1566 file->private_data = s;
1567 /* wait for device to become free */
1568 down(&s->open_sem);
1569 while (s->open_mode & file->f_mode) {
1570 if (file->f_flags & O_NONBLOCK) {
1571 up(&s->open_sem);
1572 return -EBUSY;
1573 }
1574 up(&s->open_sem);
1575 interruptible_sleep_on(&s->open_wait);
1576 if (signal_pending(current))
1577 return -ERESTARTSYS;
1578 down(&s->open_sem);
1579 }
1580 spin_lock_irqsave(&s->lock, flags);
1581 if (!(s->open_mode & (FMODE_READ|FMODE_WRITE)))
1582 s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV);
1583 if (file->f_mode & FMODE_READ) {
1584 s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
1585 s->sctrl &= ~SCTRL_R1FMT;
1586 if ((minor & 0xf) == SND_DEV_DSP16)
1587 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_R1FMT;
1588 else
1589 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_R1FMT;
1590 }
1591 if (file->f_mode & FMODE_WRITE) {
1592 s->dma_dac2.ossfragshift = s->dma_dac2.ossmaxfrags = s->dma_dac2.subdivision = 0;
1593 s->sctrl &= ~SCTRL_P2FMT;
1594 if ((minor & 0xf) == SND_DEV_DSP16)
1595 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P2FMT;
1596 else
1597 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P2FMT;
1598 }
1599 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1600 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1601 spin_unlock_irqrestore(&s->lock, flags);
1602 s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
1603 up(&s->open_sem);
1604 MOD_INC_USE_COUNT;
1605 return 0;
1606 }
1607
1608 static int es1370_release(struct inode *inode, struct file *file)
1609 {
1610 struct es1370_state *s = (struct es1370_state *)file->private_data;
1611
1612 VALIDATE_STATE(s);
1613 if (file->f_mode & FMODE_WRITE)
1614 drain_dac2(s, file->f_flags & O_NONBLOCK);
1615 down(&s->open_sem);
1616 if (file->f_mode & FMODE_WRITE) {
1617 stop_dac2(s);
1618 synchronize_irq();
1619 dealloc_dmabuf(&s->dma_dac2);
1620 }
1621 if (file->f_mode & FMODE_READ) {
1622 stop_adc(s);
1623 dealloc_dmabuf(&s->dma_adc);
1624 }
1625 s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
1626 up(&s->open_sem);
1627 wake_up(&s->open_wait);
1628 MOD_DEC_USE_COUNT;
1629 return 0;
1630 }
1631
1632 static /*const*/ struct file_operations es1370_audio_fops = {
1633 &es1370_llseek,
1634 &es1370_read,
1635 &es1370_write,
1636 NULL, /* readdir */
1637 &es1370_poll,
1638 &es1370_ioctl,
1639 &es1370_mmap,
1640 &es1370_open,
1641 NULL, /* flush */
1642 &es1370_release,
1643 NULL, /* fsync */
1644 NULL, /* fasync */
1645 NULL, /* check_media_change */
1646 NULL, /* revalidate */
1647 NULL, /* lock */
1648 };
1649
1650 /* --------------------------------------------------------------------- */
1651
1652 static ssize_t es1370_write_dac(struct file *file, const char *buffer, size_t count, loff_t *ppos)
1653 {
1654 struct es1370_state *s = (struct es1370_state *)file->private_data;
1655 ssize_t ret = 0;
1656 unsigned long flags;
1657 unsigned swptr;
1658 int cnt;
1659
1660 VALIDATE_STATE(s);
1661 if (ppos != &file->f_pos)
1662 return -ESPIPE;
1663 if (s->dma_dac1.mapped)
1664 return -ENXIO;
1665 if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
1666 return ret;
1667 if (!access_ok(VERIFY_READ, buffer, count))
1668 return -EFAULT;
1669 while (count > 0) {
1670 spin_lock_irqsave(&s->lock, flags);
1671 if (s->dma_dac1.count < 0) {
1672 s->dma_dac1.count = 0;
1673 s->dma_dac1.swptr = s->dma_dac1.hwptr;
1674 }
1675 swptr = s->dma_dac1.swptr;
1676 cnt = s->dma_dac1.dmasize-swptr;
1677 if (s->dma_dac1.count + cnt > s->dma_dac1.dmasize)
1678 cnt = s->dma_dac1.dmasize - s->dma_dac1.count;
1679 spin_unlock_irqrestore(&s->lock, flags);
1680 if (cnt > count)
1681 cnt = count;
1682 if (cnt <= 0) {
1683 start_dac1(s);
1684 if (file->f_flags & O_NONBLOCK)
1685 return ret ? ret : -EAGAIN;
1686 interruptible_sleep_on(&s->dma_dac1.wait);
1687 if (signal_pending(current))
1688 return ret ? ret : -ERESTARTSYS;
1689 continue;
1690 }
1691 if (copy_from_user(s->dma_dac1.rawbuf + swptr, buffer, cnt))
1692 return ret ? ret : -EFAULT;
1693 swptr = (swptr + cnt) % s->dma_dac1.dmasize;
1694 spin_lock_irqsave(&s->lock, flags);
1695 s->dma_dac1.swptr = swptr;
1696 s->dma_dac1.count += cnt;
1697 s->dma_dac1.endcleared = 0;
1698 spin_unlock_irqrestore(&s->lock, flags);
1699 count -= cnt;
1700 buffer += cnt;
1701 ret += cnt;
1702 start_dac1(s);
1703 }
1704 return ret;
1705 }
1706
1707 static unsigned int es1370_poll_dac(struct file *file, struct poll_table_struct *wait)
1708 {
1709 struct es1370_state *s = (struct es1370_state *)file->private_data;
1710 unsigned long flags;
1711 unsigned int mask = 0;
1712
1713 VALIDATE_STATE(s);
1714 poll_wait(file, &s->dma_dac1.wait, wait);
1715 spin_lock_irqsave(&s->lock, flags);
1716 es1370_update_ptr(s);
1717 if (s->dma_dac1.mapped) {
1718 if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
1719 mask |= POLLOUT | POLLWRNORM;
1720 } else {
1721 if ((signed)s->dma_dac1.dmasize >= s->dma_dac1.count + (signed)s->dma_dac1.fragsize)
1722 mask |= POLLOUT | POLLWRNORM;
1723 }
1724 spin_unlock_irqrestore(&s->lock, flags);
1725 return mask;
1726 }
1727
1728 static int es1370_mmap_dac(struct file *file, struct vm_area_struct *vma)
1729 {
1730 struct es1370_state *s = (struct es1370_state *)file->private_data;
1731 int ret;
1732 unsigned long size;
1733
1734 VALIDATE_STATE(s);
1735 if (!(vma->vm_flags & VM_WRITE))
1736 return -EINVAL;
1737 if ((ret = prog_dmabuf_dac1(s)) != 0)
1738 return ret;
1739 if (vma->vm_offset != 0)
1740 return -EINVAL;
1741 size = vma->vm_end - vma->vm_start;
1742 if (size > (PAGE_SIZE << s->dma_dac1.buforder))
1743 return -EINVAL;
1744 if (remap_page_range(vma->vm_start, virt_to_phys(s->dma_dac1.rawbuf), size, vma->vm_page_prot))
1745 return -EAGAIN;
1746 s->dma_dac1.mapped = 1;
1747 return 0;
1748 }
1749
1750 static int es1370_ioctl_dac(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1751 {
1752 struct es1370_state *s = (struct es1370_state *)file->private_data;
1753 unsigned long flags;
1754 audio_buf_info abinfo;
1755 count_info cinfo;
1756 unsigned ctrl;
1757 int val, ret;
1758
1759 VALIDATE_STATE(s);
1760 switch (cmd) {
1761 case OSS_GETVERSION:
1762 return put_user(SOUND_VERSION, (int *)arg);
1763
1764 case SNDCTL_DSP_SYNC:
1765 return drain_dac1(s, 0/*file->f_flags & O_NONBLOCK*/);
1766
1767 case SNDCTL_DSP_SETDUPLEX:
1768 return -EINVAL;
1769
1770 case SNDCTL_DSP_GETCAPS:
1771 return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg);
1772
1773 case SNDCTL_DSP_RESET:
1774 stop_dac1(s);
1775 synchronize_irq();
1776 s->dma_dac1.swptr = s->dma_dac1.hwptr = s->dma_dac1.count = s->dma_dac1.total_bytes = 0;
1777 return 0;
1778
1779 case SNDCTL_DSP_SPEED:
1780 get_user_ret(val, (int *)arg, -EFAULT);
1781 if (val >= 0) {
1782 stop_dac1(s);
1783 s->dma_dac1.ready = 0;
1784 for (ctrl = 0; ctrl <= 2; ctrl++)
1785 if (val < (dac1_samplerate[ctrl] + dac1_samplerate[ctrl+1]) / 2)
1786 break;
1787 spin_lock_irqsave(&s->lock, flags);
1788 s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (ctrl << CTRL_SH_WTSRSEL);
1789 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1790 spin_unlock_irqrestore(&s->lock, flags);
1791 }
1792 return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], (int *)arg);
1793
1794 case SNDCTL_DSP_STEREO:
1795 get_user_ret(val, (int *)arg, -EFAULT);
1796 stop_dac1(s);
1797 s->dma_dac1.ready = 0;
1798 spin_lock_irqsave(&s->lock, flags);
1799 if (val)
1800 s->sctrl |= SCTRL_P1SMB;
1801 else
1802 s->sctrl &= ~SCTRL_P1SMB;
1803 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1804 spin_unlock_irqrestore(&s->lock, flags);
1805 return 0;
1806
1807 case SNDCTL_DSP_CHANNELS:
1808 get_user_ret(val, (int *)arg, -EFAULT);
1809 if (val != 0) {
1810 if (s->dma_dac1.mapped)
1811 return -EINVAL;
1812 stop_dac1(s);
1813 s->dma_dac1.ready = 0;
1814 spin_lock_irqsave(&s->lock, flags);
1815 if (val >= 2)
1816 s->sctrl |= SCTRL_P1SMB;
1817 else
1818 s->sctrl &= ~SCTRL_P1SMB;
1819 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1820 spin_unlock_irqrestore(&s->lock, flags);
1821 }
1822 return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, (int *)arg);
1823
1824 case SNDCTL_DSP_GETFMTS: /* Returns a mask */
1825 return put_user(AFMT_S16_LE|AFMT_U8, (int *)arg);
1826
1827 case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
1828 get_user_ret(val, (int *)arg, -EFAULT);
1829 if (val != AFMT_QUERY) {
1830 stop_dac1(s);
1831 s->dma_dac1.ready = 0;
1832 spin_lock_irqsave(&s->lock, flags);
1833 if (val == AFMT_S16_LE)
1834 s->sctrl |= SCTRL_P1SEB;
1835 else
1836 s->sctrl &= ~SCTRL_P1SEB;
1837 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1838 spin_unlock_irqrestore(&s->lock, flags);
1839 }
1840 return put_user((s->sctrl & SCTRL_P1SEB) ? AFMT_S16_LE : AFMT_U8, (int *)arg);
1841
1842 case SNDCTL_DSP_POST:
1843 return 0;
1844
1845 case SNDCTL_DSP_GETTRIGGER:
1846 return put_user((s->ctrl & CTRL_DAC1_EN) ? PCM_ENABLE_OUTPUT : 0, (int *)arg);
1847
1848 case SNDCTL_DSP_SETTRIGGER:
1849 get_user_ret(val, (int *)arg, -EFAULT);
1850 if (val & PCM_ENABLE_OUTPUT) {
1851 if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
1852 return ret;
1853 start_dac1(s);
1854 } else
1855 stop_dac1(s);
1856 return 0;
1857
1858 case SNDCTL_DSP_GETOSPACE:
1859 if (!(s->ctrl & CTRL_DAC2_EN) && (val = prog_dmabuf_dac1(s)) != 0)
1860 return val;
1861 spin_lock_irqsave(&s->lock, flags);
1862 es1370_update_ptr(s);
1863 abinfo.fragsize = s->dma_dac1.fragsize;
1864 abinfo.bytes = s->dma_dac1.dmasize - s->dma_dac1.count;
1865 abinfo.fragstotal = s->dma_dac1.numfrag;
1866 abinfo.fragments = abinfo.bytes >> s->dma_dac1.fragshift;
1867 spin_unlock_irqrestore(&s->lock, flags);
1868 return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1869
1870 case SNDCTL_DSP_NONBLOCK:
1871 file->f_flags |= O_NONBLOCK;
1872 return 0;
1873
1874 case SNDCTL_DSP_GETODELAY:
1875 spin_lock_irqsave(&s->lock, flags);
1876 es1370_update_ptr(s);
1877 val = s->dma_dac1.count;
1878 spin_unlock_irqrestore(&s->lock, flags);
1879 return put_user(val, (int *)arg);
1880
1881 case SNDCTL_DSP_GETOPTR:
1882 if (!(file->f_mode & FMODE_WRITE))
1883 return -EINVAL;
1884 spin_lock_irqsave(&s->lock, flags);
1885 es1370_update_ptr(s);
1886 cinfo.bytes = s->dma_dac1.total_bytes;
1887 cinfo.blocks = s->dma_dac1.count >> s->dma_dac1.fragshift;
1888 cinfo.ptr = s->dma_dac1.hwptr;
1889 if (s->dma_dac1.mapped)
1890 s->dma_dac1.count &= s->dma_dac1.fragsize-1;
1891 spin_unlock_irqrestore(&s->lock, flags);
1892 return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
1893
1894 case SNDCTL_DSP_GETBLKSIZE:
1895 if ((val = prog_dmabuf_dac1(s)))
1896 return val;
1897 return put_user(s->dma_dac1.fragsize, (int *)arg);
1898
1899 case SNDCTL_DSP_SETFRAGMENT:
1900 get_user_ret(val, (int *)arg, -EFAULT);
1901 s->dma_dac1.ossfragshift = val & 0xffff;
1902 s->dma_dac1.ossmaxfrags = (val >> 16) & 0xffff;
1903 if (s->dma_dac1.ossfragshift < 4)
1904 s->dma_dac1.ossfragshift = 4;
1905 if (s->dma_dac1.ossfragshift > 15)
1906 s->dma_dac1.ossfragshift = 15;
1907 if (s->dma_dac1.ossmaxfrags < 4)
1908 s->dma_dac1.ossmaxfrags = 4;
1909 return 0;
1910
1911 case SNDCTL_DSP_SUBDIVIDE:
1912 if (s->dma_dac1.subdivision)
1913 return -EINVAL;
1914 get_user_ret(val, (int *)arg, -EFAULT);
1915 if (val != 1 && val != 2 && val != 4)
1916 return -EINVAL;
1917 s->dma_dac1.subdivision = val;
1918 return 0;
1919
1920 case SOUND_PCM_READ_RATE:
1921 return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], (int *)arg);
1922
1923 case SOUND_PCM_READ_CHANNELS:
1924 return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, (int *)arg);
1925
1926 case SOUND_PCM_READ_BITS:
1927 return put_user((s->sctrl & SCTRL_P1SEB) ? 16 : 8, (int *)arg);
1928
1929 case SOUND_PCM_WRITE_FILTER:
1930 case SNDCTL_DSP_SETSYNCRO:
1931 case SOUND_PCM_READ_FILTER:
1932 return -EINVAL;
1933
1934 }
1935 return mixer_ioctl(s, cmd, arg);
1936 }
1937
1938 static int es1370_open_dac(struct inode *inode, struct file *file)
1939 {
1940 int minor = MINOR(inode->i_rdev);
1941 struct es1370_state *s = devs;
1942 unsigned long flags;
1943
1944 while (s && ((s->dev_dac ^ minor) & ~0xf))
1945 s = s->next;
1946 if (!s)
1947 return -ENODEV;
1948 VALIDATE_STATE(s);
1949 /* we allow opening with O_RDWR, most programs do it although they will only write */
1950 #if 0
1951 if (file->f_mode & FMODE_READ)
1952 return -EPERM;
1953 #endif
1954 if (!(file->f_mode & FMODE_WRITE))
1955 return -EINVAL;
1956 file->private_data = s;
1957 /* wait for device to become free */
1958 down(&s->open_sem);
1959 while (s->open_mode & FMODE_DAC) {
1960 if (file->f_flags & O_NONBLOCK) {
1961 up(&s->open_sem);
1962 return -EBUSY;
1963 }
1964 up(&s->open_sem);
1965 interruptible_sleep_on(&s->open_wait);
1966 if (signal_pending(current))
1967 return -ERESTARTSYS;
1968 down(&s->open_sem);
1969 }
1970 s->dma_dac1.ossfragshift = s->dma_dac1.ossmaxfrags = s->dma_dac1.subdivision = 0;
1971 spin_lock_irqsave(&s->lock, flags);
1972 s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (1 << CTRL_SH_WTSRSEL);
1973 s->sctrl &= ~SCTRL_P1FMT;
1974 if ((minor & 0xf) == SND_DEV_DSP16)
1975 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P1FMT;
1976 else
1977 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P1FMT;
1978 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1979 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1980 spin_unlock_irqrestore(&s->lock, flags);
1981 s->open_mode |= FMODE_DAC;
1982 up(&s->open_sem);
1983 MOD_INC_USE_COUNT;
1984 return 0;
1985 }
1986
1987 static int es1370_release_dac(struct inode *inode, struct file *file)
1988 {
1989 struct es1370_state *s = (struct es1370_state *)file->private_data;
1990
1991 VALIDATE_STATE(s);
1992 drain_dac1(s, file->f_flags & O_NONBLOCK);
1993 down(&s->open_sem);
1994 stop_dac1(s);
1995 dealloc_dmabuf(&s->dma_dac1);
1996 s->open_mode &= ~FMODE_DAC;
1997 up(&s->open_sem);
1998 wake_up(&s->open_wait);
1999 MOD_DEC_USE_COUNT;
2000 return 0;
2001 }
2002
2003 static /*const*/ struct file_operations es1370_dac_fops = {
2004 &es1370_llseek,
2005 NULL, /* read */
2006 &es1370_write_dac,
2007 NULL, /* readdir */
2008 &es1370_poll_dac,
2009 &es1370_ioctl_dac,
2010 &es1370_mmap_dac,
2011 &es1370_open_dac,
2012 NULL, /* flush */
2013 &es1370_release_dac,
2014 NULL, /* fsync */
2015 NULL, /* fasync */
2016 NULL, /* check_media_change */
2017 NULL, /* revalidate */
2018 NULL, /* lock */
2019 };
2020
2021 /* --------------------------------------------------------------------- */
2022
2023 static ssize_t es1370_midi_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
2024 {
2025 struct es1370_state *s = (struct es1370_state *)file->private_data;
2026 ssize_t ret;
2027 unsigned long flags;
2028 unsigned ptr;
2029 int cnt;
2030
2031 VALIDATE_STATE(s);
2032 if (ppos != &file->f_pos)
2033 return -ESPIPE;
2034 if (!access_ok(VERIFY_WRITE, buffer, count))
2035 return -EFAULT;
2036 ret = 0;
2037 while (count > 0) {
2038 spin_lock_irqsave(&s->lock, flags);
2039 ptr = s->midi.ird;
2040 cnt = MIDIINBUF - ptr;
2041 if (s->midi.icnt < cnt)
2042 cnt = s->midi.icnt;
2043 spin_unlock_irqrestore(&s->lock, flags);
2044 if (cnt > count)
2045 cnt = count;
2046 if (cnt <= 0) {
2047 if (file->f_flags & O_NONBLOCK)
2048 return ret ? ret : -EAGAIN;
2049 interruptible_sleep_on(&s->midi.iwait);
2050 if (signal_pending(current))
2051 return ret ? ret : -ERESTARTSYS;
2052 continue;
2053 }
2054 if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt))
2055 return ret ? ret : -EFAULT;
2056 ptr = (ptr + cnt) % MIDIINBUF;
2057 spin_lock_irqsave(&s->lock, flags);
2058 s->midi.ird = ptr;
2059 s->midi.icnt -= cnt;
2060 spin_unlock_irqrestore(&s->lock, flags);
2061 count -= cnt;
2062 buffer += cnt;
2063 ret += cnt;
2064 }
2065 return ret;
2066 }
2067
2068 static ssize_t es1370_midi_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
2069 {
2070 struct es1370_state *s = (struct es1370_state *)file->private_data;
2071 ssize_t ret;
2072 unsigned long flags;
2073 unsigned ptr;
2074 int cnt;
2075
2076 VALIDATE_STATE(s);
2077 if (ppos != &file->f_pos)
2078 return -ESPIPE;
2079 if (!access_ok(VERIFY_READ, buffer, count))
2080 return -EFAULT;
2081 ret = 0;
2082 while (count > 0) {
2083 spin_lock_irqsave(&s->lock, flags);
2084 ptr = s->midi.owr;
2085 cnt = MIDIOUTBUF - ptr;
2086 if (s->midi.ocnt + cnt > MIDIOUTBUF)
2087 cnt = MIDIOUTBUF - s->midi.ocnt;
2088 if (cnt <= 0)
2089 es1370_handle_midi(s);
2090 spin_unlock_irqrestore(&s->lock, flags);
2091 if (cnt > count)
2092 cnt = count;
2093 if (cnt <= 0) {
2094 if (file->f_flags & O_NONBLOCK)
2095 return ret ? ret : -EAGAIN;
2096 interruptible_sleep_on(&s->midi.owait);
2097 if (signal_pending(current))
2098 return ret ? ret : -ERESTARTSYS;
2099 continue;
2100 }
2101 if (copy_from_user(s->midi.obuf + ptr, buffer, cnt))
2102 return ret ? ret : -EFAULT;
2103 ptr = (ptr + cnt) % MIDIOUTBUF;
2104 spin_lock_irqsave(&s->lock, flags);
2105 s->midi.owr = ptr;
2106 s->midi.ocnt += cnt;
2107 spin_unlock_irqrestore(&s->lock, flags);
2108 count -= cnt;
2109 buffer += cnt;
2110 ret += cnt;
2111 spin_lock_irqsave(&s->lock, flags);
2112 es1370_handle_midi(s);
2113 spin_unlock_irqrestore(&s->lock, flags);
2114 }
2115 return ret;
2116 }
2117
2118 static unsigned int es1370_midi_poll(struct file *file, struct poll_table_struct *wait)
2119 {
2120 struct es1370_state *s = (struct es1370_state *)file->private_data;
2121 unsigned long flags;
2122 unsigned int mask = 0;
2123
2124 VALIDATE_STATE(s);
2125 if (file->f_mode & FMODE_WRITE)
2126 poll_wait(file, &s->midi.owait, wait);
2127 if (file->f_mode & FMODE_READ)
2128 poll_wait(file, &s->midi.iwait, wait);
2129 spin_lock_irqsave(&s->lock, flags);
2130 if (file->f_mode & FMODE_READ) {
2131 if (s->midi.icnt > 0)
2132 mask |= POLLIN | POLLRDNORM;
2133 }
2134 if (file->f_mode & FMODE_WRITE) {
2135 if (s->midi.ocnt < MIDIOUTBUF)
2136 mask |= POLLOUT | POLLWRNORM;
2137 }
2138 spin_unlock_irqrestore(&s->lock, flags);
2139 return mask;
2140 }
2141
2142 static int es1370_midi_open(struct inode *inode, struct file *file)
2143 {
2144 int minor = MINOR(inode->i_rdev);
2145 struct es1370_state *s = devs;
2146 unsigned long flags;
2147
2148 while (s && s->dev_midi != minor)
2149 s = s->next;
2150 if (!s)
2151 return -ENODEV;
2152 VALIDATE_STATE(s);
2153 file->private_data = s;
2154 /* wait for device to become free */
2155 down(&s->open_sem);
2156 while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
2157 if (file->f_flags & O_NONBLOCK) {
2158 up(&s->open_sem);
2159 return -EBUSY;
2160 }
2161 up(&s->open_sem);
2162 interruptible_sleep_on(&s->open_wait);
2163 if (signal_pending(current))
2164 return -ERESTARTSYS;
2165 down(&s->open_sem);
2166 }
2167 spin_lock_irqsave(&s->lock, flags);
2168 if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2169 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2170 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2171 outb(UCTRL_CNTRL_SWR, s->io+ES1370_REG_UART_CONTROL);
2172 outb(0, s->io+ES1370_REG_UART_CONTROL);
2173 outb(0, s->io+ES1370_REG_UART_TEST);
2174 }
2175 if (file->f_mode & FMODE_READ) {
2176 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2177 }
2178 if (file->f_mode & FMODE_WRITE) {
2179 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2180 }
2181 s->ctrl |= CTRL_UART_EN;
2182 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2183 es1370_handle_midi(s);
2184 spin_unlock_irqrestore(&s->lock, flags);
2185 s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
2186 up(&s->open_sem);
2187 MOD_INC_USE_COUNT;
2188 return 0;
2189 }
2190
2191 static int es1370_midi_release(struct inode *inode, struct file *file)
2192 {
2193 struct es1370_state *s = (struct es1370_state *)file->private_data;
2194 DECLARE_WAITQUEUE(wait, current);
2195 unsigned long flags;
2196 unsigned count, tmo;
2197
2198 VALIDATE_STATE(s);
2199
2200 if (file->f_mode & FMODE_WRITE) {
2201 current->state = TASK_INTERRUPTIBLE;
2202 add_wait_queue(&s->midi.owait, &wait);
2203 for (;;) {
2204 spin_lock_irqsave(&s->lock, flags);
2205 count = s->midi.ocnt;
2206 spin_unlock_irqrestore(&s->lock, flags);
2207 if (count <= 0)
2208 break;
2209 if (signal_pending(current))
2210 break;
2211 if (file->f_flags & O_NONBLOCK) {
2212 remove_wait_queue(&s->midi.owait, &wait);
2213 current->state = TASK_RUNNING;
2214 return -EBUSY;
2215 }
2216 tmo = (count * HZ) / 3100;
2217 if (!schedule_timeout(tmo ? : 1) && tmo)
2218 DBG(printk(KERN_DEBUG "es1370: midi timed out??\n");)
2219 }
2220 remove_wait_queue(&s->midi.owait, &wait);
2221 current->state = TASK_RUNNING;
2222 }
2223 down(&s->open_sem);
2224 s->open_mode &= (~(file->f_mode << FMODE_MIDI_SHIFT)) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE);
2225 spin_lock_irqsave(&s->lock, flags);
2226 if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2227 s->ctrl &= ~CTRL_UART_EN;
2228 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2229 }
2230 spin_unlock_irqrestore(&s->lock, flags);
2231 up(&s->open_sem);
2232 wake_up(&s->open_wait);
2233 MOD_DEC_USE_COUNT;
2234 return 0;
2235 }
2236
2237 static /*const*/ struct file_operations es1370_midi_fops = {
2238 &es1370_llseek,
2239 &es1370_midi_read,
2240 &es1370_midi_write,
2241 NULL, /* readdir */
2242 &es1370_midi_poll,
2243 NULL, /* ioctl */
2244 NULL, /* mmap */
2245 &es1370_midi_open,
2246 NULL, /* flush */
2247 &es1370_midi_release,
2248 NULL, /* fsync */
2249 NULL, /* fasync */
2250 NULL, /* check_media_change */
2251 NULL, /* revalidate */
2252 NULL, /* lock */
2253 };
2254
2255 /* --------------------------------------------------------------------- */
2256
2257 /* maximum number of devices */
2258 #define NR_DEVICE 5
2259 #ifdef CONFIG_SOUND_ES1370_JOYPORT_BOOT
2260 static int joystick[NR_DEVICE] = { 1, 0, };
2261 #else
2262 static int joystick[NR_DEVICE] = { 0, };
2263 #endif
2264 static int lineout[NR_DEVICE] = { 0, };
2265 static int micz[NR_DEVICE] = { 0, };
2266
2267 /* --------------------------------------------------------------------- */
2268
2269 static struct initvol {
2270 int mixch;
2271 int vol;
2272 } initvol[] __initdata = {
2273 { SOUND_MIXER_WRITE_VOLUME, 0x4040 },
2274 { SOUND_MIXER_WRITE_PCM, 0x4040 },
2275 { SOUND_MIXER_WRITE_SYNTH, 0x4040 },
2276 { SOUND_MIXER_WRITE_CD, 0x4040 },
2277 { SOUND_MIXER_WRITE_LINE, 0x4040 },
2278 { SOUND_MIXER_WRITE_LINE1, 0x4040 },
2279 { SOUND_MIXER_WRITE_LINE2, 0x4040 },
2280 { SOUND_MIXER_WRITE_LINE3, 0x4040 },
2281 { SOUND_MIXER_WRITE_MIC, 0x4040 },
2282 { SOUND_MIXER_WRITE_OGAIN, 0x4040 }
2283 };
2284
2285 #ifdef MODULE
2286 __initfunc(int init_module(void))
2287 #else
2288 __initfunc(int init_es1370(void))
2289 #endif
2290 {
2291 struct es1370_state *s;
2292 struct pci_dev *pcidev = NULL;
2293 mm_segment_t fs;
2294 int i, val, index = 0;
2295
2296 if (!pci_present()) /* No PCI bus in this machine! */
2297 return -ENODEV;
2298 printk(KERN_INFO "es1370: version v0.20 time " __TIME__ " " __DATE__ "\n");
2299 while (index < NR_DEVICE &&
2300 (pcidev = pci_find_device(PCI_VENDOR_ID_ENSONIQ, PCI_DEVICE_ID_ENSONIQ_ES1370, pcidev))) {
2301 if (pcidev->base_address[0] == 0 ||
2302 (pcidev->base_address[0] & PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_IO)
2303 continue;
2304 if (pcidev->irq == 0)
2305 continue;
2306 if (!(s = kmalloc(sizeof(struct es1370_state), GFP_KERNEL))) {
2307 printk(KERN_WARNING "es1370: out of memory\n");
2308 continue;
2309 }
2310 memset(s, 0, sizeof(struct es1370_state));
2311 init_waitqueue_head(&s->dma_adc.wait);
2312 init_waitqueue_head(&s->dma_dac1.wait);
2313 init_waitqueue_head(&s->dma_dac2.wait);
2314 init_waitqueue_head(&s->open_wait);
2315 init_waitqueue_head(&s->midi.iwait);
2316 init_waitqueue_head(&s->midi.owait);
2317 s->open_sem = MUTEX;
2318 s->magic = ES1370_MAGIC;
2319 s->io = pcidev->base_address[0] & PCI_BASE_ADDRESS_IO_MASK;
2320 s->irq = pcidev->irq;
2321 if (check_region(s->io, ES1370_EXTENT)) {
2322 printk(KERN_ERR "es1370: io ports %#lx-%#lx in use\n", s->io, s->io+ES1370_EXTENT-1);
2323 goto err_region;
2324 }
2325 request_region(s->io, ES1370_EXTENT, "es1370");
2326 if (request_irq(s->irq, es1370_interrupt, SA_SHIRQ, "es1370", s)) {
2327 printk(KERN_ERR "es1370: irq %u in use\n", s->irq);
2328 goto err_irq;
2329 }
2330 /* initialize codec registers */
2331 s->ctrl = CTRL_CDC_EN | CTRL_SERR_DIS | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV) | (1 << CTRL_SH_WTSRSEL);
2332 if (joystick[index]) {
2333 if (check_region(0x200, JOY_EXTENT))
2334 printk(KERN_ERR "es1370: io port 0x200 in use\n");
2335 else
2336 s->ctrl |= CTRL_JYSTK_EN;
2337 }
2338 if (lineout[index])
2339 s->ctrl |= CTRL_XCTL0;
2340 if (micz[index])
2341 s->ctrl |= CTRL_XCTL1;
2342 s->sctrl = 0;
2343 printk(KERN_INFO "es1370: found adapter at io %#lx irq %u\n"
2344 KERN_INFO "es1370: features: joystick %s, line %s, mic impedance %s\n",
2345 s->io, s->irq, (s->ctrl & CTRL_JYSTK_EN) ? "on" : "off",
2346 (s->ctrl & CTRL_XCTL0) ? "out" : "in",
2347 (s->ctrl & CTRL_XCTL1) ? "1" : "0");
2348 /* register devices */
2349 if ((s->dev_audio = register_sound_dsp(&es1370_audio_fops, -1)) < 0)
2350 goto err_dev1;
2351 if ((s->dev_mixer = register_sound_mixer(&es1370_mixer_fops, -1)) < 0)
2352 goto err_dev2;
2353 if ((s->dev_dac = register_sound_dsp(&es1370_dac_fops, -1)) < 0)
2354 goto err_dev3;
2355 if ((s->dev_midi = register_sound_midi(&es1370_midi_fops, -1)) < 0)
2356 goto err_dev4;
2357 /* initialize the chips */
2358 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2359 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2360 wrcodec(s, 0x16, 3); /* no RST, PD */
2361 wrcodec(s, 0x17, 0); /* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off the LRCLK2 PLL; program DAC_SYNC=0!! */
2362 wrcodec(s, 0x18, 0); /* recording source is mixer */
2363 wrcodec(s, 0x19, s->mix.micpreamp = 1); /* turn on MIC preamp */
2364 fs = get_fs();
2365 set_fs(KERNEL_DS);
2366 val = SOUND_MASK_LINE|SOUND_MASK_SYNTH|SOUND_MASK_CD;
2367 mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val);
2368 for (i = 0; i < sizeof(initvol)/sizeof(initvol[0]); i++) {
2369 val = initvol[i].vol;
2370 mixer_ioctl(s, initvol[i].mixch, (unsigned long)&val);
2371 }
2372 set_fs(fs);
2373 /* queue it for later freeing */
2374 s->next = devs;
2375 devs = s;
2376 index++;
2377 continue;
2378
2379 err_dev4:
2380 unregister_sound_dsp(s->dev_dac);
2381 err_dev3:
2382 unregister_sound_mixer(s->dev_mixer);
2383 err_dev2:
2384 unregister_sound_dsp(s->dev_audio);
2385 err_dev1:
2386 printk(KERN_ERR "es1370: cannot register misc device\n");
2387 free_irq(s->irq, s);
2388 err_irq:
2389 release_region(s->io, ES1370_EXTENT);
2390 err_region:
2391 kfree_s(s, sizeof(struct es1370_state));
2392 }
2393 if (!devs)
2394 return -ENODEV;
2395 return 0;
2396 }
2397
2398 /* --------------------------------------------------------------------- */
2399
2400 #ifdef MODULE
2401
2402 MODULE_PARM(joystick, "1-" __MODULE_STRING(NR_DEVICE) "i");
2403 MODULE_PARM_DESC(joystick, "if 1 enables joystick interface (still need separate driver)");
2404 MODULE_PARM(lineout, "1-" __MODULE_STRING(NR_DEVICE) "i");
2405 MODULE_PARM_DESC(lineout, "if 1 the LINE input is converted to LINE out");
2406 MODULE_PARM(micz, "1-" __MODULE_STRING(NR_DEVICE) "i");
2407 MODULE_PARM_DESC(micz, "changes (??) the microphone impedance");
2408
2409 MODULE_AUTHOR("Thomas M. Sailer, sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu");
2410 MODULE_DESCRIPTION("ES1370 AudioPCI Driver");
2411
2412 void cleanup_module(void)
2413 {
2414 struct es1370_state *s;
2415
2416 while ((s = devs)) {
2417 devs = devs->next;
2418 outl(CTRL_SERR_DIS | (1 << CTRL_SH_WTSRSEL), s->io+ES1370_REG_CONTROL); /* switch everything off */
2419 outl(0, s->io+ES1370_REG_SERIAL_CONTROL); /* clear serial interrupts */
2420 synchronize_irq();
2421 free_irq(s->irq, s);
2422 release_region(s->io, ES1370_EXTENT);
2423 unregister_sound_dsp(s->dev_audio);
2424 unregister_sound_mixer(s->dev_mixer);
2425 unregister_sound_dsp(s->dev_dac);
2426 unregister_sound_midi(s->dev_midi);
2427 kfree_s(s, sizeof(struct es1370_state));
2428 }
2429 printk(KERN_INFO "es1370: unloading\n");
2430 }
2431
2432 #endif /* MODULE */
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