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Import 2.3.11pre3
[davej-history.git] / drivers / sound / es1370.c
blobc667b2106734922f5151760522ade4ec203841e5
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 * micbias sets the +5V bias to the mic if using an electretmic.
37 *
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 * 10.05.99 0.21 Added support for an electret mic for SB PCI64
96 * to the Linux kernel sound driver. This mod also straighten
97 * out the question marks around the mic impedance setting
98 * (micz). From Kim.Berts@fisub.mail.abb.com
99 * 11.05.99 0.22 Implemented the IMIX call to mute recording monitor.
100 * Guenter Geiger <geiger@epy.co.at>
101 * 15.06.99 0.23 Fix bad allocation bug.
102 * Thanks to Deti Fliegl <fliegl@in.tum.de>
103 * 28.06.99 0.24 Add pci_set_master
104 *
105 * some important things missing in Ensoniq documentation:
106 *
107 * Experimental PCLKDIV results: play the same waveforms on both DAC1 and DAC2
108 * and vary PCLKDIV to obtain zero beat.
109 * 5512sps: 254
110 * 44100sps: 30
111 * seems to be fs = 1411200/(PCLKDIV+2)
112 *
113 * should find out when curr_sample_ct is cleared and
114 * where exactly the CCB fetches data
115 *
116 * The card uses a 22.5792 MHz crystal.
117 * The LINEIN jack may be converted to an AOUT jack by
118 * setting pin 47 (XCTL0) of the ES1370 to high.
119 * Pin 48 (XCTL1) of the ES1370 sets the +5V bias for an electretmic
120 *
121 *
122 */
123
124 /*****************************************************************************/
125
126 #include <linux/config.h>
127 #include <linux/version.h>
128 #include <linux/module.h>
129 #include <linux/string.h>
130 #include <linux/ioport.h>
131 #include <linux/sched.h>
132 #include <linux/delay.h>
133 #include <linux/sound.h>
134 #include <linux/malloc.h>
135 #include <linux/soundcard.h>
136 #include <linux/pci.h>
137 #include <asm/io.h>
138 #include <asm/dma.h>
139 #include <linux/init.h>
140 #include <linux/poll.h>
141 #include <asm/spinlock.h>
142 #include <asm/uaccess.h>
143 #include <asm/hardirq.h>
144
145 /* --------------------------------------------------------------------- */
146
147 #undef OSS_DOCUMENTED_MIXER_SEMANTICS
148 #define DBG(x) {}
149 /*#define DBG(x) {x}*/
150
151 /* --------------------------------------------------------------------- */
152
153 #ifndef PCI_VENDOR_ID_ENSONIQ
154 #define PCI_VENDOR_ID_ENSONIQ 0x1274
155 #endif
156 #ifndef PCI_DEVICE_ID_ENSONIQ_ES1370
157 #define PCI_DEVICE_ID_ENSONIQ_ES1370 0x5000
158 #endif
159
160 #define ES1370_MAGIC ((PCI_VENDOR_ID_ENSONIQ<<16)|PCI_DEVICE_ID_ENSONIQ_ES1370)
161
162 #define ES1370_EXTENT 0x40
163 #define JOY_EXTENT 8
164
165 #define ES1370_REG_CONTROL 0x00
166 #define ES1370_REG_STATUS 0x04
167 #define ES1370_REG_UART_DATA 0x08
168 #define ES1370_REG_UART_STATUS 0x09
169 #define ES1370_REG_UART_CONTROL 0x09
170 #define ES1370_REG_UART_TEST 0x0a
171 #define ES1370_REG_MEMPAGE 0x0c
172 #define ES1370_REG_CODEC 0x10
173 #define ES1370_REG_SERIAL_CONTROL 0x20
174 #define ES1370_REG_DAC1_SCOUNT 0x24
175 #define ES1370_REG_DAC2_SCOUNT 0x28
176 #define ES1370_REG_ADC_SCOUNT 0x2c
177
178 #define ES1370_REG_DAC1_FRAMEADR 0xc30
179 #define ES1370_REG_DAC1_FRAMECNT 0xc34
180 #define ES1370_REG_DAC2_FRAMEADR 0xc38
181 #define ES1370_REG_DAC2_FRAMECNT 0xc3c
182 #define ES1370_REG_ADC_FRAMEADR 0xd30
183 #define ES1370_REG_ADC_FRAMECNT 0xd34
184
185 #define ES1370_FMT_U8_MONO 0
186 #define ES1370_FMT_U8_STEREO 1
187 #define ES1370_FMT_S16_MONO 2
188 #define ES1370_FMT_S16_STEREO 3
189 #define ES1370_FMT_STEREO 1
190 #define ES1370_FMT_S16 2
191 #define ES1370_FMT_MASK 3
192
193 static const unsigned sample_size[] = { 1, 2, 2, 4 };
194 static const unsigned sample_shift[] = { 0, 1, 1, 2 };
195
196 static const unsigned dac1_samplerate[] = { 5512, 11025, 22050, 44100 };
197
198 #define DAC2_SRTODIV(x) (((1411200+(x)/2)/(x))-2)
199 #define DAC2_DIVTOSR(x) (1411200/((x)+2))
200
201 #define CTRL_ADC_STOP 0x80000000 /* 1 = ADC stopped */
202 #define CTRL_XCTL1 0x40000000 /* electret mic bias */
203 #define CTRL_OPEN 0x20000000 /* no function, can be read and written */
204 #define CTRL_PCLKDIV 0x1fff0000 /* ADC/DAC2 clock divider */
205 #define CTRL_SH_PCLKDIV 16
206 #define CTRL_MSFMTSEL 0x00008000 /* MPEG serial data fmt: 0 = Sony, 1 = I2S */
207 #define CTRL_M_SBB 0x00004000 /* DAC2 clock: 0 = PCLKDIV, 1 = MPEG */
208 #define CTRL_WTSRSEL 0x00003000 /* DAC1 clock freq: 0=5512, 1=11025, 2=22050, 3=44100 */
209 #define CTRL_SH_WTSRSEL 12
210 #define CTRL_DAC_SYNC 0x00000800 /* 1 = DAC2 runs off DAC1 clock */
211 #define CTRL_CCB_INTRM 0x00000400 /* 1 = CCB "voice" ints enabled */
212 #define CTRL_M_CB 0x00000200 /* recording source: 0 = ADC, 1 = MPEG */
213 #define CTRL_XCTL0 0x00000100 /* 0 = Line in, 1 = Line out */
214 #define CTRL_BREQ 0x00000080 /* 1 = test mode (internal mem test) */
215 #define CTRL_DAC1_EN 0x00000040 /* enable DAC1 */
216 #define CTRL_DAC2_EN 0x00000020 /* enable DAC2 */
217 #define CTRL_ADC_EN 0x00000010 /* enable ADC */
218 #define CTRL_UART_EN 0x00000008 /* enable MIDI uart */
219 #define CTRL_JYSTK_EN 0x00000004 /* enable Joystick port (presumably at address 0x200) */
220 #define CTRL_CDC_EN 0x00000002 /* enable serial (CODEC) interface */
221 #define CTRL_SERR_DIS 0x00000001 /* 1 = disable PCI SERR signal */
222
223 #define STAT_INTR 0x80000000 /* wired or of all interrupt bits */
224 #define STAT_CSTAT 0x00000400 /* 1 = codec busy or codec write in progress */
225 #define STAT_CBUSY 0x00000200 /* 1 = codec busy */
226 #define STAT_CWRIP 0x00000100 /* 1 = codec write in progress */
227 #define STAT_VC 0x00000060 /* CCB int source, 0=DAC1, 1=DAC2, 2=ADC, 3=undef */
228 #define STAT_SH_VC 5
229 #define STAT_MCCB 0x00000010 /* CCB int pending */
230 #define STAT_UART 0x00000008 /* UART int pending */
231 #define STAT_DAC1 0x00000004 /* DAC1 int pending */
232 #define STAT_DAC2 0x00000002 /* DAC2 int pending */
233 #define STAT_ADC 0x00000001 /* ADC int pending */
234
235 #define USTAT_RXINT 0x80 /* UART rx int pending */
236 #define USTAT_TXINT 0x04 /* UART tx int pending */
237 #define USTAT_TXRDY 0x02 /* UART tx ready */
238 #define USTAT_RXRDY 0x01 /* UART rx ready */
239
240 #define UCTRL_RXINTEN 0x80 /* 1 = enable RX ints */
241 #define UCTRL_TXINTEN 0x60 /* TX int enable field mask */
242 #define UCTRL_ENA_TXINT 0x20 /* enable TX int */
243 #define UCTRL_CNTRL 0x03 /* control field */
244 #define UCTRL_CNTRL_SWR 0x03 /* software reset command */
245
246 #define SCTRL_P2ENDINC 0x00380000 /* */
247 #define SCTRL_SH_P2ENDINC 19
248 #define SCTRL_P2STINC 0x00070000 /* */
249 #define SCTRL_SH_P2STINC 16
250 #define SCTRL_R1LOOPSEL 0x00008000 /* 0 = loop mode */
251 #define SCTRL_P2LOOPSEL 0x00004000 /* 0 = loop mode */
252 #define SCTRL_P1LOOPSEL 0x00002000 /* 0 = loop mode */
253 #define SCTRL_P2PAUSE 0x00001000 /* 1 = pause mode */
254 #define SCTRL_P1PAUSE 0x00000800 /* 1 = pause mode */
255 #define SCTRL_R1INTEN 0x00000400 /* enable interrupt */
256 #define SCTRL_P2INTEN 0x00000200 /* enable interrupt */
257 #define SCTRL_P1INTEN 0x00000100 /* enable interrupt */
258 #define SCTRL_P1SCTRLD 0x00000080 /* reload sample count register for DAC1 */
259 #define SCTRL_P2DACSEN 0x00000040 /* 1 = DAC2 play back last sample when disabled */
260 #define SCTRL_R1SEB 0x00000020 /* 1 = 16bit */
261 #define SCTRL_R1SMB 0x00000010 /* 1 = stereo */
262 #define SCTRL_R1FMT 0x00000030 /* format mask */
263 #define SCTRL_SH_R1FMT 4
264 #define SCTRL_P2SEB 0x00000008 /* 1 = 16bit */
265 #define SCTRL_P2SMB 0x00000004 /* 1 = stereo */
266 #define SCTRL_P2FMT 0x0000000c /* format mask */
267 #define SCTRL_SH_P2FMT 2
268 #define SCTRL_P1SEB 0x00000002 /* 1 = 16bit */
269 #define SCTRL_P1SMB 0x00000001 /* 1 = stereo */
270 #define SCTRL_P1FMT 0x00000003 /* format mask */
271 #define SCTRL_SH_P1FMT 0
272
273 /* misc stuff */
274
275 #define FMODE_DAC 4 /* slight misuse of mode_t */
276
277 /* MIDI buffer sizes */
278
279 #define MIDIINBUF 256
280 #define MIDIOUTBUF 256
281
282 #define FMODE_MIDI_SHIFT 3
283 #define FMODE_MIDI_READ (FMODE_READ << FMODE_MIDI_SHIFT)
284 #define FMODE_MIDI_WRITE (FMODE_WRITE << FMODE_MIDI_SHIFT)
285
286 #define SND_DEV_DSP16 5
287
288 /* --------------------------------------------------------------------- */
289
290 struct es1370_state {
291 /* magic */
292 unsigned int magic;
293
294 /* we keep sb cards in a linked list */
295 struct es1370_state *next;
296
297 /* soundcore stuff */
298 int dev_audio;
299 int dev_mixer;
300 int dev_dac;
301 int dev_midi;
302
303 /* hardware resources */
304 unsigned long io; /* long for SPARC */
305 unsigned int irq;
306
307 /* mixer registers; there is no HW readback */
308 struct {
309 unsigned short vol[10];
310 unsigned int recsrc;
311 unsigned int modcnt;
312 unsigned short micpreamp;
313 unsigned int imix;
314 } mix;
315
316 /* wave stuff */
317 unsigned ctrl;
318 unsigned sctrl;
319
320 spinlock_t lock;
321 struct semaphore open_sem;
322 mode_t open_mode;
323 wait_queue_head_t open_wait;
324
325 struct dmabuf {
326 void *rawbuf;
327 unsigned buforder;
328 unsigned numfrag;
329 unsigned fragshift;
330 unsigned hwptr, swptr;
331 unsigned total_bytes;
332 int count;
333 unsigned error; /* over/underrun */
334 wait_queue_head_t wait;
335 /* redundant, but makes calculations easier */
336 unsigned fragsize;
337 unsigned dmasize;
338 unsigned fragsamples;
339 /* OSS stuff */
340 unsigned mapped:1;
341 unsigned ready:1;
342 unsigned endcleared:1;
343 unsigned ossfragshift;
344 int ossmaxfrags;
345 unsigned subdivision;
346 } dma_dac1, dma_dac2, dma_adc;
347
348 /* midi stuff */
349 struct {
350 unsigned ird, iwr, icnt;
351 unsigned ord, owr, ocnt;
352 wait_queue_head_t iwait;
353 wait_queue_head_t owait;
354 unsigned char ibuf[MIDIINBUF];
355 unsigned char obuf[MIDIOUTBUF];
356 } midi;
357 };
358
359 /* --------------------------------------------------------------------- */
360
361 static struct es1370_state *devs = NULL;
362
363 /* --------------------------------------------------------------------- */
364
365 extern inline unsigned ld2(unsigned int x)
366 {
367 unsigned r = 0;
368
369 if (x >= 0x10000) {
370 x >>= 16;
371 r += 16;
372 }
373 if (x >= 0x100) {
374 x >>= 8;
375 r += 8;
376 }
377 if (x >= 0x10) {
378 x >>= 4;
379 r += 4;
380 }
381 if (x >= 4) {
382 x >>= 2;
383 r += 2;
384 }
385 if (x >= 2)
386 r++;
387 return r;
388 }
389
390 /* --------------------------------------------------------------------- */
391
392 static void wrcodec(struct es1370_state *s, unsigned char idx, unsigned char data)
393 {
394 unsigned long tmo = jiffies + HZ/10;
395
396 do {
397 if (!(inl(s->io+ES1370_REG_STATUS) & STAT_CSTAT)) {
398 outw((((unsigned short)idx)<<8)|data, s->io+ES1370_REG_CODEC);
399 return;
400 }
401 schedule();
402 } while ((signed)(tmo-jiffies) > 0);
403 printk(KERN_ERR "es1370: write to codec register timeout\n");
404 }
405
406 /* --------------------------------------------------------------------- */
407
408 extern inline void stop_adc(struct es1370_state *s)
409 {
410 unsigned long flags;
411
412 spin_lock_irqsave(&s->lock, flags);
413 s->ctrl &= ~CTRL_ADC_EN;
414 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
415 spin_unlock_irqrestore(&s->lock, flags);
416 }
417
418 extern inline void stop_dac1(struct es1370_state *s)
419 {
420 unsigned long flags;
421
422 spin_lock_irqsave(&s->lock, flags);
423 s->ctrl &= ~CTRL_DAC1_EN;
424 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
425 spin_unlock_irqrestore(&s->lock, flags);
426 }
427
428 extern inline void stop_dac2(struct es1370_state *s)
429 {
430 unsigned long flags;
431
432 spin_lock_irqsave(&s->lock, flags);
433 s->ctrl &= ~CTRL_DAC2_EN;
434 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
435 spin_unlock_irqrestore(&s->lock, flags);
436 }
437
438 static void start_dac1(struct es1370_state *s)
439 {
440 unsigned long flags;
441 unsigned fragremain, fshift;
442
443 spin_lock_irqsave(&s->lock, flags);
444 if (!(s->ctrl & CTRL_DAC1_EN) && (s->dma_dac1.mapped || s->dma_dac1.count > 0)
445 && s->dma_dac1.ready) {
446 s->ctrl |= CTRL_DAC1_EN;
447 s->sctrl = (s->sctrl & ~(SCTRL_P1LOOPSEL | SCTRL_P1PAUSE | SCTRL_P1SCTRLD)) | SCTRL_P1INTEN;
448 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
449 fragremain = ((- s->dma_dac1.hwptr) & (s->dma_dac1.fragsize-1));
450 fshift = sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
451 if (fragremain < 2*fshift)
452 fragremain = s->dma_dac1.fragsize;
453 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_DAC1_SCOUNT);
454 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
455 outl((s->dma_dac1.fragsize >> fshift) - 1, s->io+ES1370_REG_DAC1_SCOUNT);
456 }
457 spin_unlock_irqrestore(&s->lock, flags);
458 }
459
460 static void start_dac2(struct es1370_state *s)
461 {
462 unsigned long flags;
463 unsigned fragremain, fshift;
464
465 spin_lock_irqsave(&s->lock, flags);
466 if (!(s->ctrl & CTRL_DAC2_EN) && (s->dma_dac2.mapped || s->dma_dac2.count > 0)
467 && s->dma_dac2.ready) {
468 s->ctrl |= CTRL_DAC2_EN;
469 s->sctrl = (s->sctrl & ~(SCTRL_P2LOOPSEL | SCTRL_P2PAUSE | SCTRL_P2DACSEN |
470 SCTRL_P2ENDINC | SCTRL_P2STINC)) | SCTRL_P2INTEN |
471 (((s->sctrl & SCTRL_P2FMT) ? 2 : 1) << SCTRL_SH_P2ENDINC) |
472 (0 << SCTRL_SH_P2STINC);
473 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
474 fragremain = ((- s->dma_dac2.hwptr) & (s->dma_dac2.fragsize-1));
475 fshift = sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
476 if (fragremain < 2*fshift)
477 fragremain = s->dma_dac2.fragsize;
478 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_DAC2_SCOUNT);
479 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
480 outl((s->dma_dac2.fragsize >> fshift) - 1, s->io+ES1370_REG_DAC2_SCOUNT);
481 }
482 spin_unlock_irqrestore(&s->lock, flags);
483 }
484
485 static void start_adc(struct es1370_state *s)
486 {
487 unsigned long flags;
488 unsigned fragremain, fshift;
489
490 spin_lock_irqsave(&s->lock, flags);
491 if (!(s->ctrl & CTRL_ADC_EN) && (s->dma_adc.mapped || s->dma_adc.count < (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize))
492 && s->dma_adc.ready) {
493 s->ctrl |= CTRL_ADC_EN;
494 s->sctrl = (s->sctrl & ~SCTRL_R1LOOPSEL) | SCTRL_R1INTEN;
495 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
496 fragremain = ((- s->dma_adc.hwptr) & (s->dma_adc.fragsize-1));
497 fshift = sample_shift[(s->sctrl & SCTRL_R1FMT) >> SCTRL_SH_R1FMT];
498 if (fragremain < 2*fshift)
499 fragremain = s->dma_adc.fragsize;
500 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_ADC_SCOUNT);
501 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
502 outl((s->dma_adc.fragsize >> fshift) - 1, s->io+ES1370_REG_ADC_SCOUNT);
503 }
504 spin_unlock_irqrestore(&s->lock, flags);
505 }
506
507 /* --------------------------------------------------------------------- */
508
509 #define DMABUF_DEFAULTORDER (17-PAGE_SHIFT)
510 #define DMABUF_MINORDER 1
511
512 extern inline void dealloc_dmabuf(struct dmabuf *db)
513 {
514 unsigned long map, mapend;
515
516 if (db->rawbuf) {
517 /* undo marking the pages as reserved */
518 mapend = MAP_NR(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
519 for (map = MAP_NR(db->rawbuf); map <= mapend; map++)
520 clear_bit(PG_reserved, &mem_map[map].flags);
521 free_pages((unsigned long)db->rawbuf, db->buforder);
522 }
523 db->rawbuf = NULL;
524 db->mapped = db->ready = 0;
525 }
526
527 static int prog_dmabuf(struct es1370_state *s, struct dmabuf *db, unsigned rate, unsigned fmt, unsigned reg)
528 {
529 int order;
530 unsigned bytepersec;
531 unsigned bufs;
532 unsigned long map, mapend;
533
534 db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
535 if (!db->rawbuf) {
536 db->ready = db->mapped = 0;
537 for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--)
538 if ((db->rawbuf = (void *)__get_free_pages(GFP_KERNEL, order)))
539 break;
540 if (!db->rawbuf)
541 return -ENOMEM;
542 db->buforder = order;
543 /* now mark the pages as reserved; otherwise remap_page_range doesn't do what we want */
544 mapend = MAP_NR(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
545 for (map = MAP_NR(db->rawbuf); map <= mapend; map++)
546 set_bit(PG_reserved, &mem_map[map].flags);
547 }
548 fmt &= ES1370_FMT_MASK;
549 bytepersec = rate << sample_shift[fmt];
550 bufs = PAGE_SIZE << db->buforder;
551 if (db->ossfragshift) {
552 if ((1000 << db->ossfragshift) < bytepersec)
553 db->fragshift = ld2(bytepersec/1000);
554 else
555 db->fragshift = db->ossfragshift;
556 } else {
557 db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1));
558 if (db->fragshift < 3)
559 db->fragshift = 3;
560 }
561 db->numfrag = bufs >> db->fragshift;
562 while (db->numfrag < 4 && db->fragshift > 3) {
563 db->fragshift--;
564 db->numfrag = bufs >> db->fragshift;
565 }
566 db->fragsize = 1 << db->fragshift;
567 if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
568 db->numfrag = db->ossmaxfrags;
569 db->fragsamples = db->fragsize >> sample_shift[fmt];
570 db->dmasize = db->numfrag << db->fragshift;
571 memset(db->rawbuf, (fmt & ES1370_FMT_S16) ? 0 : 0x80, db->dmasize);
572 outl((reg >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
573 outl(virt_to_bus(db->rawbuf), s->io+(reg & 0xff));
574 outl((db->dmasize >> 2)-1, s->io+((reg + 4) & 0xff));
575 db->ready = 1;
576 return 0;
577 }
578
579 extern inline int prog_dmabuf_adc(struct es1370_state *s)
580 {
581 stop_adc(s);
582 return prog_dmabuf(s, &s->dma_adc, DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV),
583 (s->sctrl >> SCTRL_SH_R1FMT) & ES1370_FMT_MASK, ES1370_REG_ADC_FRAMEADR);
584 }
585
586 extern inline int prog_dmabuf_dac2(struct es1370_state *s)
587 {
588 stop_dac2(s);
589 return prog_dmabuf(s, &s->dma_dac2, DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV),
590 (s->sctrl >> SCTRL_SH_P2FMT) & ES1370_FMT_MASK, ES1370_REG_DAC2_FRAMEADR);
591 }
592
593 extern inline int prog_dmabuf_dac1(struct es1370_state *s)
594 {
595 stop_dac1(s);
596 return prog_dmabuf(s, &s->dma_dac1, dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL],
597 (s->sctrl >> SCTRL_SH_P1FMT) & ES1370_FMT_MASK, ES1370_REG_DAC1_FRAMEADR);
598 }
599
600 extern inline unsigned get_hwptr(struct es1370_state *s, struct dmabuf *db, unsigned reg)
601 {
602 unsigned hwptr, diff;
603
604 outl((reg >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
605 hwptr = (inl(s->io+(reg & 0xff)) >> 14) & 0x3fffc;
606 diff = (db->dmasize + hwptr - db->hwptr) % db->dmasize;
607 db->hwptr = hwptr;
608 return diff;
609 }
610
611 extern inline void clear_advance(void *buf, unsigned bsize, unsigned bptr, unsigned len, unsigned char c)
612 {
613 if (bptr + len > bsize) {
614 unsigned x = bsize - bptr;
615 memset(((char *)buf) + bptr, c, x);
616 bptr = 0;
617 len -= x;
618 }
619 memset(((char *)buf) + bptr, c, len);
620 }
621
622 /* call with spinlock held! */
623 static void es1370_update_ptr(struct es1370_state *s)
624 {
625 int diff;
626
627 /* update ADC pointer */
628 if (s->ctrl & CTRL_ADC_EN) {
629 diff = get_hwptr(s, &s->dma_adc, ES1370_REG_ADC_FRAMECNT);
630 s->dma_adc.total_bytes += diff;
631 s->dma_adc.count += diff;
632 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
633 wake_up(&s->dma_adc.wait);
634 if (!s->dma_adc.mapped) {
635 if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) {
636 s->ctrl &= ~CTRL_ADC_EN;
637 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
638 s->dma_adc.error++;
639 }
640 }
641 }
642 /* update DAC1 pointer */
643 if (s->ctrl & CTRL_DAC1_EN) {
644 diff = get_hwptr(s, &s->dma_dac1, ES1370_REG_DAC1_FRAMECNT);
645 s->dma_dac1.total_bytes += diff;
646 if (s->dma_dac1.mapped) {
647 s->dma_dac1.count += diff;
648 if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
649 wake_up(&s->dma_dac1.wait);
650 } else {
651 s->dma_dac1.count -= diff;
652 if (s->dma_dac1.count <= 0) {
653 s->ctrl &= ~CTRL_DAC1_EN;
654 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
655 s->dma_dac1.error++;
656 } else if (s->dma_dac1.count <= (signed)s->dma_dac1.fragsize && !s->dma_dac1.endcleared) {
657 clear_advance(s->dma_dac1.rawbuf, s->dma_dac1.dmasize, s->dma_dac1.swptr,
658 s->dma_dac1.fragsize, (s->sctrl & SCTRL_P1SEB) ? 0 : 0x80);
659 s->dma_dac1.endcleared = 1;
660 }
661 if (s->dma_dac1.count + (signed)s->dma_dac1.fragsize <= (signed)s->dma_dac1.dmasize)
662 wake_up(&s->dma_dac1.wait);
663 }
664 }
665 /* update DAC2 pointer */
666 if (s->ctrl & CTRL_DAC2_EN) {
667 diff = get_hwptr(s, &s->dma_dac2, ES1370_REG_DAC2_FRAMECNT);
668 s->dma_dac2.total_bytes += diff;
669 if (s->dma_dac2.mapped) {
670 s->dma_dac2.count += diff;
671 if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
672 wake_up(&s->dma_dac2.wait);
673 } else {
674 s->dma_dac2.count -= diff;
675 if (s->dma_dac2.count <= 0) {
676 s->ctrl &= ~CTRL_DAC2_EN;
677 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
678 s->dma_dac2.error++;
679 } else if (s->dma_dac2.count <= (signed)s->dma_dac2.fragsize && !s->dma_dac2.endcleared) {
680 clear_advance(s->dma_dac2.rawbuf, s->dma_dac2.dmasize, s->dma_dac2.swptr,
681 s->dma_dac2.fragsize, (s->sctrl & SCTRL_P2SEB) ? 0 : 0x80);
682 s->dma_dac2.endcleared = 1;
683 }
684 if (s->dma_dac2.count + (signed)s->dma_dac2.fragsize <= (signed)s->dma_dac2.dmasize)
685 wake_up(&s->dma_dac2.wait);
686 }
687 }
688 }
689
690 /* hold spinlock for the following! */
691 static void es1370_handle_midi(struct es1370_state *s)
692 {
693 unsigned char ch;
694 int wake;
695
696 if (!(s->ctrl & CTRL_UART_EN))
697 return;
698 wake = 0;
699 while (inb(s->io+ES1370_REG_UART_STATUS) & USTAT_RXRDY) {
700 ch = inb(s->io+ES1370_REG_UART_DATA);
701 if (s->midi.icnt < MIDIINBUF) {
702 s->midi.ibuf[s->midi.iwr] = ch;
703 s->midi.iwr = (s->midi.iwr + 1) % MIDIINBUF;
704 s->midi.icnt++;
705 }
706 wake = 1;
707 }
708 if (wake)
709 wake_up(&s->midi.iwait);
710 wake = 0;
711 while ((inb(s->io+ES1370_REG_UART_STATUS) & USTAT_TXRDY) && s->midi.ocnt > 0) {
712 outb(s->midi.obuf[s->midi.ord], s->io+ES1370_REG_UART_DATA);
713 s->midi.ord = (s->midi.ord + 1) % MIDIOUTBUF;
714 s->midi.ocnt--;
715 if (s->midi.ocnt < MIDIOUTBUF-16)
716 wake = 1;
717 }
718 if (wake)
719 wake_up(&s->midi.owait);
720 outb((s->midi.ocnt > 0) ? UCTRL_RXINTEN | UCTRL_ENA_TXINT : UCTRL_RXINTEN, s->io+ES1370_REG_UART_CONTROL);
721 }
722
723 static void es1370_interrupt(int irq, void *dev_id, struct pt_regs *regs)
724 {
725 struct es1370_state *s = (struct es1370_state *)dev_id;
726 unsigned int intsrc, sctl;
727
728 /* fastpath out, to ease interrupt sharing */
729 intsrc = inl(s->io+ES1370_REG_STATUS);
730 if (!(intsrc & 0x80000000))
731 return;
732 spin_lock(&s->lock);
733 /* clear audio interrupts first */
734 sctl = s->sctrl;
735 if (intsrc & STAT_ADC)
736 sctl &= ~SCTRL_R1INTEN;
737 if (intsrc & STAT_DAC1)
738 sctl &= ~SCTRL_P1INTEN;
739 if (intsrc & STAT_DAC2)
740 sctl &= ~SCTRL_P2INTEN;
741 outl(sctl, s->io+ES1370_REG_SERIAL_CONTROL);
742 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
743 es1370_update_ptr(s);
744 es1370_handle_midi(s);
745 spin_unlock(&s->lock);
746 }
747
748 /* --------------------------------------------------------------------- */
749
750 static const char invalid_magic[] = KERN_CRIT "es1370: invalid magic value\n";
751
752 #define VALIDATE_STATE(s) \
753 ({ \
754 if (!(s) || (s)->magic != ES1370_MAGIC) { \
755 printk(invalid_magic); \
756 return -ENXIO; \
757 } \
758 })
759
760 /* --------------------------------------------------------------------- */
761
762 static const struct {
763 unsigned volidx:4;
764 unsigned left:4;
765 unsigned right:4;
766 unsigned stereo:1;
767 unsigned recmask:13;
768 unsigned avail:1;
769 } mixtable[SOUND_MIXER_NRDEVICES] = {
770 [SOUND_MIXER_VOLUME] = { 0, 0x0, 0x1, 1, 0x0000, 1 }, /* master */
771 [SOUND_MIXER_PCM] = { 1, 0x2, 0x3, 1, 0x0400, 1 }, /* voice */
772 [SOUND_MIXER_SYNTH] = { 2, 0x4, 0x5, 1, 0x0060, 1 }, /* FM */
773 [SOUND_MIXER_CD] = { 3, 0x6, 0x7, 1, 0x0006, 1 }, /* CD */
774 [SOUND_MIXER_LINE] = { 4, 0x8, 0x9, 1, 0x0018, 1 }, /* Line */
775 [SOUND_MIXER_LINE1] = { 5, 0xa, 0xb, 1, 0x1800, 1 }, /* AUX */
776 [SOUND_MIXER_LINE2] = { 6, 0xc, 0x0, 0, 0x0100, 1 }, /* Mono1 */
777 [SOUND_MIXER_LINE3] = { 7, 0xd, 0x0, 0, 0x0200, 1 }, /* Mono2 */
778 [SOUND_MIXER_MIC] = { 8, 0xe, 0x0, 0, 0x0001, 1 }, /* Mic */
779 [SOUND_MIXER_OGAIN] = { 9, 0xf, 0x0, 0, 0x0000, 1 } /* mono out */
780 };
781
782 static int mixer_ioctl(struct es1370_state *s, unsigned int cmd, unsigned long arg)
783 {
784 unsigned long flags;
785 int i, val, j;
786 unsigned char l, r, rl, rr;
787
788 VALIDATE_STATE(s);
789 if (cmd == SOUND_MIXER_PRIVATE1) {
790 /* enable/disable/query mixer preamp */
791 get_user_ret(val, (int *)arg, -EFAULT);
792 if (val != -1) {
793 s->mix.micpreamp = !!val;
794 wrcodec(s, 0x19, s->mix.micpreamp);
795 }
796 return put_user(s->mix.micpreamp, (int *)arg);
797 }
798 if (cmd == SOUND_MIXER_PRIVATE2) {
799 /* enable/disable/query use of linein as second lineout */
800 get_user_ret(val, (int *)arg, -EFAULT);
801 if (val != -1) {
802 spin_lock_irqsave(&s->lock, flags);
803 if (val)
804 s->ctrl |= CTRL_XCTL0;
805 else
806 s->ctrl &= ~CTRL_XCTL0;
807 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
808 spin_unlock_irqrestore(&s->lock, flags);
809 }
810 return put_user((s->ctrl & CTRL_XCTL0) ? 1 : 0, (int *)arg);
811 }
812 if (cmd == SOUND_MIXER_PRIVATE3) {
813 /* enable/disable/query microphone impedance setting */
814 get_user_ret(val, (int *)arg, -EFAULT);
815 if (val != -1) {
816 spin_lock_irqsave(&s->lock, flags);
817 if (val)
818 s->ctrl |= CTRL_XCTL1;
819 else
820 s->ctrl &= ~CTRL_XCTL1;
821 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
822 spin_unlock_irqrestore(&s->lock, flags);
823 }
824 return put_user((s->ctrl & CTRL_XCTL1) ? 1 : 0, (int *)arg);
825 }
826 if (cmd == SOUND_MIXER_INFO) {
827 mixer_info info;
828 strncpy(info.id, "ES1370", sizeof(info.id));
829 strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
830 info.modify_counter = s->mix.modcnt;
831 if (copy_to_user((void *)arg, &info, sizeof(info)))
832 return -EFAULT;
833 return 0;
834 }
835 if (cmd == SOUND_OLD_MIXER_INFO) {
836 _old_mixer_info info;
837 strncpy(info.id, "ES1370", sizeof(info.id));
838 strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
839 if (copy_to_user((void *)arg, &info, sizeof(info)))
840 return -EFAULT;
841 return 0;
842 }
843 if (cmd == OSS_GETVERSION)
844 return put_user(SOUND_VERSION, (int *)arg);
845 if (_IOC_TYPE(cmd) != 'M' || _IOC_SIZE(cmd) != sizeof(int))
846 return -EINVAL;
847 if (_IOC_DIR(cmd) == _IOC_READ) {
848 switch (_IOC_NR(cmd)) {
849 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
850 return put_user(s->mix.recsrc, (int *)arg);
851
852 case SOUND_MIXER_DEVMASK: /* Arg contains a bit for each supported device */
853 val = SOUND_MASK_IMIX;
854 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
855 if (mixtable[i].avail)
856 val |= 1 << i;
857 return put_user(val, (int *)arg);
858
859 case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
860 for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
861 if (mixtable[i].recmask)
862 val |= 1 << i;
863 return put_user(val, (int *)arg);
864
865 case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
866 for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
867 if (mixtable[i].stereo)
868 val |= 1 << i;
869 return put_user(val, (int *)arg);
870
871 case SOUND_MIXER_CAPS:
872 return put_user(0, (int *)arg);
873
874 case SOUND_MIXER_IMIX:
875 return put_user(s->mix.imix, (int *)arg);
876
877 default:
878 i = _IOC_NR(cmd);
879 if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
880 return -EINVAL;
881 return put_user(s->mix.vol[mixtable[i].volidx], (int *)arg);
882 }
883 }
884 if (_IOC_DIR(cmd) != (_IOC_READ|_IOC_WRITE))
885 return -EINVAL;
886 s->mix.modcnt++;
887 switch (_IOC_NR(cmd)) {
888
889 case SOUND_MIXER_IMIX:
890 if (arg == 0)
891 return -EFAULT;
892 get_user_ret(s->mix.imix,(int *)arg, -EFAULT);
893 val = s->mix.recsrc;
894 /* fall through */
895
896 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
897 get_user_ret(val, (int *)arg, -EFAULT);
898 for (j = i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
899 if (!(val & (1 << i)))
900 continue;
901 if (!mixtable[i].recmask) {
902 val &= ~(1 << i);
903 continue;
904 }
905 j |= mixtable[i].recmask;
906 }
907 s->mix.recsrc = val;
908 wrcodec(s, 0x12, j & 0xd5);
909 wrcodec(s, 0x13, j & 0xaa);
910 wrcodec(s, 0x14, (j >> 8) & 0x17);
911 wrcodec(s, 0x15, (j >> 8) & 0x0f);
912 i = (j & 0x37f) | ((j << 1) & 0x3000) | 0xc60;
913 if (!s->mix.imix) {
914 i &= 0xff60; /* mute record and line monitor */
915 }
916 wrcodec(s, 0x10, i);
917 wrcodec(s, 0x11, i >> 8);
918 return 0;
919
920 default:
921 i = _IOC_NR(cmd);
922 if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
923 return -EINVAL;
924 get_user_ret(val, (int *)arg, -EFAULT);
925 l = val & 0xff;
926 if (l > 100)
927 l = 100;
928 if (mixtable[i].stereo) {
929 r = (val >> 8) & 0xff;
930 if (r > 100)
931 r = 100;
932 if (l < 7) {
933 rl = 0x80;
934 l = 0;
935 } else {
936 rl = 31 - ((l - 7) / 3);
937 l = (31 - rl) * 3 + 7;
938 }
939 if (r < 7) {
940 rr = 0x80;
941 r = 0;
942 } else {
943 rr = 31 - ((r - 7) / 3);
944 r = (31 - rr) * 3 + 7;
945 }
946 wrcodec(s, mixtable[i].right, rr);
947 } else {
948 if (mixtable[i].left == 15) {
949 if (l < 2) {
950 rr = rl = 0x80;
951 r = l = 0;
952 } else {
953 rl = 7 - ((l - 2) / 14);
954 r = l = (7 - rl) * 14 + 2;
955 }
956 } else {
957 if (l < 7) {
958 rl = 0x80;
959 r = l = 0;
960 } else {
961 rl = 31 - ((l - 7) / 3);
962 r = l = (31 - rl) * 3 + 7;
963 }
964 }
965 }
966 wrcodec(s, mixtable[i].left, rl);
967 #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
968 s->mix.vol[mixtable[i].volidx] = ((unsigned int)r << 8) | l;
969 #else
970 s->mix.vol[mixtable[i].volidx] = val;
971 #endif
972 return put_user(s->mix.vol[mixtable[i].volidx], (int *)arg);
973 }
974 }
975
976 /* --------------------------------------------------------------------- */
977
978 static loff_t es1370_llseek(struct file *file, loff_t offset, int origin)
979 {
980 return -ESPIPE;
981 }
982
983 /* --------------------------------------------------------------------- */
984
985 static int es1370_open_mixdev(struct inode *inode, struct file *file)
986 {
987 int minor = MINOR(inode->i_rdev);
988 struct es1370_state *s = devs;
989
990 while (s && s->dev_mixer != minor)
991 s = s->next;
992 if (!s)
993 return -ENODEV;
994 VALIDATE_STATE(s);
995 file->private_data = s;
996 MOD_INC_USE_COUNT;
997 return 0;
998 }
999
1000 static int es1370_release_mixdev(struct inode *inode, struct file *file)
1001 {
1002 struct es1370_state *s = (struct es1370_state *)file->private_data;
1003
1004 VALIDATE_STATE(s);
1005 MOD_DEC_USE_COUNT;
1006 return 0;
1007 }
1008
1009 static int es1370_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1010 {
1011 return mixer_ioctl((struct es1370_state *)file->private_data, cmd, arg);
1012 }
1013
1014 static /*const*/ struct file_operations es1370_mixer_fops = {
1015 &es1370_llseek,
1016 NULL, /* read */
1017 NULL, /* write */
1018 NULL, /* readdir */
1019 NULL, /* poll */
1020 &es1370_ioctl_mixdev,
1021 NULL, /* mmap */
1022 &es1370_open_mixdev,
1023 NULL, /* flush */
1024 &es1370_release_mixdev,
1025 NULL, /* fsync */
1026 NULL, /* fasync */
1027 NULL, /* check_media_change */
1028 NULL, /* revalidate */
1029 NULL, /* lock */
1030 };
1031
1032 /* --------------------------------------------------------------------- */
1033
1034 static int drain_dac1(struct es1370_state *s, int nonblock)
1035 {
1036 DECLARE_WAITQUEUE(wait, current);
1037 unsigned long flags;
1038 int count, tmo;
1039
1040 if (s->dma_dac1.mapped || !s->dma_dac1.ready)
1041 return 0;
1042 current->state = TASK_INTERRUPTIBLE;
1043 add_wait_queue(&s->dma_dac1.wait, &wait);
1044 for (;;) {
1045 spin_lock_irqsave(&s->lock, flags);
1046 count = s->dma_dac1.count;
1047 spin_unlock_irqrestore(&s->lock, flags);
1048 if (count <= 0)
1049 break;
1050 if (signal_pending(current))
1051 break;
1052 if (nonblock) {
1053 remove_wait_queue(&s->dma_dac1.wait, &wait);
1054 current->state = TASK_RUNNING;
1055 return -EBUSY;
1056 }
1057 tmo = (count * HZ) / dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL];
1058 tmo >>= sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
1059 if (!schedule_timeout(tmo ? : 1) && tmo)
1060 DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
1061 }
1062 remove_wait_queue(&s->dma_dac1.wait, &wait);
1063 current->state = TASK_RUNNING;
1064 if (signal_pending(current))
1065 return -ERESTARTSYS;
1066 return 0;
1067 }
1068
1069 static int drain_dac2(struct es1370_state *s, int nonblock)
1070 {
1071 DECLARE_WAITQUEUE(wait, current);
1072 unsigned long flags;
1073 int count, tmo;
1074
1075 if (s->dma_dac2.mapped || !s->dma_dac2.ready)
1076 return 0;
1077 current->state = TASK_INTERRUPTIBLE;
1078 add_wait_queue(&s->dma_dac2.wait, &wait);
1079 for (;;) {
1080 spin_lock_irqsave(&s->lock, flags);
1081 count = s->dma_dac2.count;
1082 spin_unlock_irqrestore(&s->lock, flags);
1083 if (count <= 0)
1084 break;
1085 if (signal_pending(current))
1086 break;
1087 if (nonblock) {
1088 remove_wait_queue(&s->dma_dac2.wait, &wait);
1089 current->state = TASK_RUNNING;
1090 return -EBUSY;
1091 }
1092 tmo = (count * HZ) / DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV);
1093 tmo >>= sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
1094 if (!schedule_timeout(tmo ? : 1) && tmo)
1095 DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
1096 }
1097 remove_wait_queue(&s->dma_dac2.wait, &wait);
1098 current->state = TASK_RUNNING;
1099 if (signal_pending(current))
1100 return -ERESTARTSYS;
1101 return 0;
1102 }
1103
1104 /* --------------------------------------------------------------------- */
1105
1106 static ssize_t es1370_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
1107 {
1108 struct es1370_state *s = (struct es1370_state *)file->private_data;
1109 ssize_t ret;
1110 unsigned long flags;
1111 unsigned swptr;
1112 int cnt;
1113
1114 VALIDATE_STATE(s);
1115 if (ppos != &file->f_pos)
1116 return -ESPIPE;
1117 if (s->dma_adc.mapped)
1118 return -ENXIO;
1119 if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
1120 return ret;
1121 if (!access_ok(VERIFY_WRITE, buffer, count))
1122 return -EFAULT;
1123 ret = 0;
1124 while (count > 0) {
1125 spin_lock_irqsave(&s->lock, flags);
1126 swptr = s->dma_adc.swptr;
1127 cnt = s->dma_adc.dmasize-swptr;
1128 if (s->dma_adc.count < cnt)
1129 cnt = s->dma_adc.count;
1130 spin_unlock_irqrestore(&s->lock, flags);
1131 if (cnt > count)
1132 cnt = count;
1133 if (cnt <= 0) {
1134 start_adc(s);
1135 if (file->f_flags & O_NONBLOCK)
1136 return ret ? ret : -EAGAIN;
1137 interruptible_sleep_on(&s->dma_adc.wait);
1138 if (signal_pending(current))
1139 return ret ? ret : -ERESTARTSYS;
1140 continue;
1141 }
1142 if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt))
1143 return ret ? ret : -EFAULT;
1144 swptr = (swptr + cnt) % s->dma_adc.dmasize;
1145 spin_lock_irqsave(&s->lock, flags);
1146 s->dma_adc.swptr = swptr;
1147 s->dma_adc.count -= cnt;
1148 spin_unlock_irqrestore(&s->lock, flags);
1149 count -= cnt;
1150 buffer += cnt;
1151 ret += cnt;
1152 start_adc(s);
1153 }
1154 return ret;
1155 }
1156
1157 static ssize_t es1370_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
1158 {
1159 struct es1370_state *s = (struct es1370_state *)file->private_data;
1160 ssize_t ret;
1161 unsigned long flags;
1162 unsigned swptr;
1163 int cnt;
1164
1165 VALIDATE_STATE(s);
1166 if (ppos != &file->f_pos)
1167 return -ESPIPE;
1168 if (s->dma_dac2.mapped)
1169 return -ENXIO;
1170 if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
1171 return ret;
1172 if (!access_ok(VERIFY_READ, buffer, count))
1173 return -EFAULT;
1174 ret = 0;
1175 while (count > 0) {
1176 spin_lock_irqsave(&s->lock, flags);
1177 if (s->dma_dac2.count < 0) {
1178 s->dma_dac2.count = 0;
1179 s->dma_dac2.swptr = s->dma_dac2.hwptr;
1180 }
1181 swptr = s->dma_dac2.swptr;
1182 cnt = s->dma_dac2.dmasize-swptr;
1183 if (s->dma_dac2.count + cnt > s->dma_dac2.dmasize)
1184 cnt = s->dma_dac2.dmasize - s->dma_dac2.count;
1185 spin_unlock_irqrestore(&s->lock, flags);
1186 if (cnt > count)
1187 cnt = count;
1188 if (cnt <= 0) {
1189 start_dac2(s);
1190 if (file->f_flags & O_NONBLOCK)
1191 return ret ? ret : -EAGAIN;
1192 interruptible_sleep_on(&s->dma_dac2.wait);
1193 if (signal_pending(current))
1194 return ret ? ret : -ERESTARTSYS;
1195 continue;
1196 }
1197 if (copy_from_user(s->dma_dac2.rawbuf + swptr, buffer, cnt))
1198 return ret ? ret : -EFAULT;
1199 swptr = (swptr + cnt) % s->dma_dac2.dmasize;
1200 spin_lock_irqsave(&s->lock, flags);
1201 s->dma_dac2.swptr = swptr;
1202 s->dma_dac2.count += cnt;
1203 s->dma_dac2.endcleared = 0;
1204 spin_unlock_irqrestore(&s->lock, flags);
1205 count -= cnt;
1206 buffer += cnt;
1207 ret += cnt;
1208 start_dac2(s);
1209 }
1210 return ret;
1211 }
1212
1213 static unsigned int es1370_poll(struct file *file, struct poll_table_struct *wait)
1214 {
1215 struct es1370_state *s = (struct es1370_state *)file->private_data;
1216 unsigned long flags;
1217 unsigned int mask = 0;
1218
1219 VALIDATE_STATE(s);
1220 if (file->f_mode & FMODE_WRITE)
1221 poll_wait(file, &s->dma_dac2.wait, wait);
1222 if (file->f_mode & FMODE_READ)
1223 poll_wait(file, &s->dma_adc.wait, wait);
1224 spin_lock_irqsave(&s->lock, flags);
1225 es1370_update_ptr(s);
1226 if (file->f_mode & FMODE_READ) {
1227 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
1228 mask |= POLLIN | POLLRDNORM;
1229 }
1230 if (file->f_mode & FMODE_WRITE) {
1231 if (s->dma_dac2.mapped) {
1232 if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
1233 mask |= POLLOUT | POLLWRNORM;
1234 } else {
1235 if ((signed)s->dma_dac2.dmasize >= s->dma_dac2.count + (signed)s->dma_dac2.fragsize)
1236 mask |= POLLOUT | POLLWRNORM;
1237 }
1238 }
1239 spin_unlock_irqrestore(&s->lock, flags);
1240 return mask;
1241 }
1242
1243 static int es1370_mmap(struct file *file, struct vm_area_struct *vma)
1244 {
1245 struct es1370_state *s = (struct es1370_state *)file->private_data;
1246 struct dmabuf *db;
1247 int ret;
1248 unsigned long size;
1249
1250 VALIDATE_STATE(s);
1251 if (vma->vm_flags & VM_WRITE) {
1252 if ((ret = prog_dmabuf_dac2(s)) != 0)
1253 return ret;
1254 db = &s->dma_dac2;
1255 } else if (vma->vm_flags & VM_READ) {
1256 if ((ret = prog_dmabuf_adc(s)) != 0)
1257 return ret;
1258 db = &s->dma_adc;
1259 } else
1260 return -EINVAL;
1261 if (vma->vm_offset != 0)
1262 return -EINVAL;
1263 size = vma->vm_end - vma->vm_start;
1264 if (size > (PAGE_SIZE << db->buforder))
1265 return -EINVAL;
1266 if (remap_page_range(vma->vm_start, virt_to_phys(db->rawbuf), size, vma->vm_page_prot))
1267 return -EAGAIN;
1268 db->mapped = 1;
1269 return 0;
1270 }
1271
1272 static int es1370_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1273 {
1274 struct es1370_state *s = (struct es1370_state *)file->private_data;
1275 unsigned long flags;
1276 audio_buf_info abinfo;
1277 count_info cinfo;
1278 int val, mapped, ret;
1279
1280 VALIDATE_STATE(s);
1281 mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac2.mapped) ||
1282 ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
1283 switch (cmd) {
1284 case OSS_GETVERSION:
1285 return put_user(SOUND_VERSION, (int *)arg);
1286
1287 case SNDCTL_DSP_SYNC:
1288 if (file->f_mode & FMODE_WRITE)
1289 return drain_dac2(s, 0/*file->f_flags & O_NONBLOCK*/);
1290 return 0;
1291
1292 case SNDCTL_DSP_SETDUPLEX:
1293 return 0;
1294
1295 case SNDCTL_DSP_GETCAPS:
1296 return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg);
1297
1298 case SNDCTL_DSP_RESET:
1299 if (file->f_mode & FMODE_WRITE) {
1300 stop_dac2(s);
1301 synchronize_irq();
1302 s->dma_dac2.swptr = s->dma_dac2.hwptr = s->dma_dac2.count = s->dma_dac2.total_bytes = 0;
1303 }
1304 if (file->f_mode & FMODE_READ) {
1305 stop_adc(s);
1306 synchronize_irq();
1307 s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
1308 }
1309 return 0;
1310
1311 case SNDCTL_DSP_SPEED:
1312 get_user_ret(val, (int *)arg, -EFAULT);
1313 if (val >= 0) {
1314 if (s->open_mode & (~file->f_mode) & (FMODE_READ|FMODE_WRITE))
1315 return -EINVAL;
1316 if (val < 4000)
1317 val = 4000;
1318 if (val > 50000)
1319 val = 50000;
1320 stop_adc(s);
1321 stop_dac2(s);
1322 s->dma_adc.ready = s->dma_dac2.ready = 0;
1323 spin_lock_irqsave(&s->lock, flags);
1324 s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(val) << CTRL_SH_PCLKDIV);
1325 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1326 spin_unlock_irqrestore(&s->lock, flags);
1327 }
1328 return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), (int *)arg);
1329
1330 case SNDCTL_DSP_STEREO:
1331 get_user_ret(val, (int *)arg, -EFAULT);
1332 if (file->f_mode & FMODE_READ) {
1333 stop_adc(s);
1334 s->dma_adc.ready = 0;
1335 spin_lock_irqsave(&s->lock, flags);
1336 if (val)
1337 s->sctrl |= SCTRL_R1SMB;
1338 else
1339 s->sctrl &= ~SCTRL_R1SMB;
1340 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1341 spin_unlock_irqrestore(&s->lock, flags);
1342 }
1343 if (file->f_mode & FMODE_WRITE) {
1344 stop_dac2(s);
1345 s->dma_dac2.ready = 0;
1346 spin_lock_irqsave(&s->lock, flags);
1347 if (val)
1348 s->sctrl |= SCTRL_P2SMB;
1349 else
1350 s->sctrl &= ~SCTRL_P2SMB;
1351 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1352 spin_unlock_irqrestore(&s->lock, flags);
1353 }
1354 return 0;
1355
1356 case SNDCTL_DSP_CHANNELS:
1357 get_user_ret(val, (int *)arg, -EFAULT);
1358 if (val != 0) {
1359 if (file->f_mode & FMODE_READ) {
1360 stop_adc(s);
1361 s->dma_adc.ready = 0;
1362 spin_lock_irqsave(&s->lock, flags);
1363 if (val >= 2)
1364 s->sctrl |= SCTRL_R1SMB;
1365 else
1366 s->sctrl &= ~SCTRL_R1SMB;
1367 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1368 spin_unlock_irqrestore(&s->lock, flags);
1369 }
1370 if (file->f_mode & FMODE_WRITE) {
1371 stop_dac2(s);
1372 s->dma_dac2.ready = 0;
1373 spin_lock_irqsave(&s->lock, flags);
1374 if (val >= 2)
1375 s->sctrl |= SCTRL_P2SMB;
1376 else
1377 s->sctrl &= ~SCTRL_P2SMB;
1378 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1379 spin_unlock_irqrestore(&s->lock, flags);
1380 }
1381 }
1382 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ? 2 : 1, (int *)arg);
1383
1384 case SNDCTL_DSP_GETFMTS: /* Returns a mask */
1385 return put_user(AFMT_S16_LE|AFMT_U8, (int *)arg);
1386
1387 case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
1388 get_user_ret(val, (int *)arg, -EFAULT);
1389 if (val != AFMT_QUERY) {
1390 if (file->f_mode & FMODE_READ) {
1391 stop_adc(s);
1392 s->dma_adc.ready = 0;
1393 spin_lock_irqsave(&s->lock, flags);
1394 if (val == AFMT_S16_LE)
1395 s->sctrl |= SCTRL_R1SEB;
1396 else
1397 s->sctrl &= ~SCTRL_R1SEB;
1398 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1399 spin_unlock_irqrestore(&s->lock, flags);
1400 }
1401 if (file->f_mode & FMODE_WRITE) {
1402 stop_dac2(s);
1403 s->dma_dac2.ready = 0;
1404 spin_lock_irqsave(&s->lock, flags);
1405 if (val == AFMT_S16_LE)
1406 s->sctrl |= SCTRL_P2SEB;
1407 else
1408 s->sctrl &= ~SCTRL_P2SEB;
1409 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1410 spin_unlock_irqrestore(&s->lock, flags);
1411 }
1412 }
1413 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
1414 AFMT_S16_LE : AFMT_U8, (int *)arg);
1415
1416 case SNDCTL_DSP_POST:
1417 return 0;
1418
1419 case SNDCTL_DSP_GETTRIGGER:
1420 val = 0;
1421 if (file->f_mode & FMODE_READ && s->ctrl & CTRL_ADC_EN)
1422 val |= PCM_ENABLE_INPUT;
1423 if (file->f_mode & FMODE_WRITE && s->ctrl & CTRL_DAC2_EN)
1424 val |= PCM_ENABLE_OUTPUT;
1425 return put_user(val, (int *)arg);
1426
1427 case SNDCTL_DSP_SETTRIGGER:
1428 get_user_ret(val, (int *)arg, -EFAULT);
1429 if (file->f_mode & FMODE_READ) {
1430 if (val & PCM_ENABLE_INPUT) {
1431 if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
1432 return ret;
1433 start_adc(s);
1434 } else
1435 stop_adc(s);
1436 }
1437 if (file->f_mode & FMODE_WRITE) {
1438 if (val & PCM_ENABLE_OUTPUT) {
1439 if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
1440 return ret;
1441 start_dac2(s);
1442 } else
1443 stop_dac2(s);
1444 }
1445 return 0;
1446
1447 case SNDCTL_DSP_GETOSPACE:
1448 if (!(file->f_mode & FMODE_WRITE))
1449 return -EINVAL;
1450 if (!(s->ctrl & CTRL_DAC2_EN) && (val = prog_dmabuf_dac2(s)) != 0)
1451 return val;
1452 spin_lock_irqsave(&s->lock, flags);
1453 es1370_update_ptr(s);
1454 abinfo.fragsize = s->dma_dac2.fragsize;
1455 abinfo.bytes = s->dma_dac2.dmasize - s->dma_dac2.count;
1456 abinfo.fragstotal = s->dma_dac2.numfrag;
1457 abinfo.fragments = abinfo.bytes >> s->dma_dac2.fragshift;
1458 spin_unlock_irqrestore(&s->lock, flags);
1459 return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1460
1461 case SNDCTL_DSP_GETISPACE:
1462 if (!(file->f_mode & FMODE_READ))
1463 return -EINVAL;
1464 if (!(s->ctrl & CTRL_ADC_EN) && (val = prog_dmabuf_adc(s)) != 0)
1465 return val;
1466 spin_lock_irqsave(&s->lock, flags);
1467 es1370_update_ptr(s);
1468 abinfo.fragsize = s->dma_adc.fragsize;
1469 abinfo.bytes = s->dma_adc.count;
1470 abinfo.fragstotal = s->dma_adc.numfrag;
1471 abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
1472 spin_unlock_irqrestore(&s->lock, flags);
1473 return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1474
1475 case SNDCTL_DSP_NONBLOCK:
1476 file->f_flags |= O_NONBLOCK;
1477 return 0;
1478
1479 case SNDCTL_DSP_GETODELAY:
1480 if (!(file->f_mode & FMODE_WRITE))
1481 return -EINVAL;
1482 spin_lock_irqsave(&s->lock, flags);
1483 es1370_update_ptr(s);
1484 val = s->dma_dac2.count;
1485 spin_unlock_irqrestore(&s->lock, flags);
1486 return put_user(val, (int *)arg);
1487
1488 case SNDCTL_DSP_GETIPTR:
1489 if (!(file->f_mode & FMODE_READ))
1490 return -EINVAL;
1491 spin_lock_irqsave(&s->lock, flags);
1492 es1370_update_ptr(s);
1493 cinfo.bytes = s->dma_adc.total_bytes;
1494 cinfo.blocks = s->dma_adc.count >> s->dma_adc.fragshift;
1495 cinfo.ptr = s->dma_adc.hwptr;
1496 if (s->dma_adc.mapped)
1497 s->dma_adc.count &= s->dma_adc.fragsize-1;
1498 spin_unlock_irqrestore(&s->lock, flags);
1499 return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
1500
1501 case SNDCTL_DSP_GETOPTR:
1502 if (!(file->f_mode & FMODE_WRITE))
1503 return -EINVAL;
1504 spin_lock_irqsave(&s->lock, flags);
1505 es1370_update_ptr(s);
1506 cinfo.bytes = s->dma_dac2.total_bytes;
1507 cinfo.blocks = s->dma_dac2.count >> s->dma_dac2.fragshift;
1508 cinfo.ptr = s->dma_dac2.hwptr;
1509 if (s->dma_dac2.mapped)
1510 s->dma_dac2.count &= s->dma_dac2.fragsize-1;
1511 spin_unlock_irqrestore(&s->lock, flags);
1512 return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
1513
1514 case SNDCTL_DSP_GETBLKSIZE:
1515 if (file->f_mode & FMODE_WRITE) {
1516 if ((val = prog_dmabuf_dac2(s)))
1517 return val;
1518 return put_user(s->dma_dac2.fragsize, (int *)arg);
1519 }
1520 if ((val = prog_dmabuf_adc(s)))
1521 return val;
1522 return put_user(s->dma_adc.fragsize, (int *)arg);
1523
1524 case SNDCTL_DSP_SETFRAGMENT:
1525 get_user_ret(val, (int *)arg, -EFAULT);
1526 if (file->f_mode & FMODE_READ) {
1527 s->dma_adc.ossfragshift = val & 0xffff;
1528 s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
1529 if (s->dma_adc.ossfragshift < 4)
1530 s->dma_adc.ossfragshift = 4;
1531 if (s->dma_adc.ossfragshift > 15)
1532 s->dma_adc.ossfragshift = 15;
1533 if (s->dma_adc.ossmaxfrags < 4)
1534 s->dma_adc.ossmaxfrags = 4;
1535 }
1536 if (file->f_mode & FMODE_WRITE) {
1537 s->dma_dac2.ossfragshift = val & 0xffff;
1538 s->dma_dac2.ossmaxfrags = (val >> 16) & 0xffff;
1539 if (s->dma_dac2.ossfragshift < 4)
1540 s->dma_dac2.ossfragshift = 4;
1541 if (s->dma_dac2.ossfragshift > 15)
1542 s->dma_dac2.ossfragshift = 15;
1543 if (s->dma_dac2.ossmaxfrags < 4)
1544 s->dma_dac2.ossmaxfrags = 4;
1545 }
1546 return 0;
1547
1548 case SNDCTL_DSP_SUBDIVIDE:
1549 if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
1550 (file->f_mode & FMODE_WRITE && s->dma_dac2.subdivision))
1551 return -EINVAL;
1552 get_user_ret(val, (int *)arg, -EFAULT);
1553 if (val != 1 && val != 2 && val != 4)
1554 return -EINVAL;
1555 if (file->f_mode & FMODE_READ)
1556 s->dma_adc.subdivision = val;
1557 if (file->f_mode & FMODE_WRITE)
1558 s->dma_dac2.subdivision = val;
1559 return 0;
1560
1561 case SOUND_PCM_READ_RATE:
1562 return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), (int *)arg);
1563
1564 case SOUND_PCM_READ_CHANNELS:
1565 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ?
1566 2 : 1, (int *)arg);
1567
1568 case SOUND_PCM_READ_BITS:
1569 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
1570 16 : 8, (int *)arg);
1571
1572 case SOUND_PCM_WRITE_FILTER:
1573 case SNDCTL_DSP_SETSYNCRO:
1574 case SOUND_PCM_READ_FILTER:
1575 return -EINVAL;
1576
1577 }
1578 return mixer_ioctl(s, cmd, arg);
1579 }
1580
1581 static int es1370_open(struct inode *inode, struct file *file)
1582 {
1583 int minor = MINOR(inode->i_rdev);
1584 struct es1370_state *s = devs;
1585 unsigned long flags;
1586
1587 while (s && ((s->dev_audio ^ minor) & ~0xf))
1588 s = s->next;
1589 if (!s)
1590 return -ENODEV;
1591 VALIDATE_STATE(s);
1592 file->private_data = s;
1593 /* wait for device to become free */
1594 down(&s->open_sem);
1595 while (s->open_mode & file->f_mode) {
1596 if (file->f_flags & O_NONBLOCK) {
1597 up(&s->open_sem);
1598 return -EBUSY;
1599 }
1600 up(&s->open_sem);
1601 interruptible_sleep_on(&s->open_wait);
1602 if (signal_pending(current))
1603 return -ERESTARTSYS;
1604 down(&s->open_sem);
1605 }
1606 spin_lock_irqsave(&s->lock, flags);
1607 if (!(s->open_mode & (FMODE_READ|FMODE_WRITE)))
1608 s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV);
1609 if (file->f_mode & FMODE_READ) {
1610 s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
1611 s->sctrl &= ~SCTRL_R1FMT;
1612 if ((minor & 0xf) == SND_DEV_DSP16)
1613 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_R1FMT;
1614 else
1615 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_R1FMT;
1616 }
1617 if (file->f_mode & FMODE_WRITE) {
1618 s->dma_dac2.ossfragshift = s->dma_dac2.ossmaxfrags = s->dma_dac2.subdivision = 0;
1619 s->sctrl &= ~SCTRL_P2FMT;
1620 if ((minor & 0xf) == SND_DEV_DSP16)
1621 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P2FMT;
1622 else
1623 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P2FMT;
1624 }
1625 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1626 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1627 spin_unlock_irqrestore(&s->lock, flags);
1628 s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
1629 up(&s->open_sem);
1630 MOD_INC_USE_COUNT;
1631 return 0;
1632 }
1633
1634 static int es1370_release(struct inode *inode, struct file *file)
1635 {
1636 struct es1370_state *s = (struct es1370_state *)file->private_data;
1637
1638 VALIDATE_STATE(s);
1639 if (file->f_mode & FMODE_WRITE)
1640 drain_dac2(s, file->f_flags & O_NONBLOCK);
1641 down(&s->open_sem);
1642 if (file->f_mode & FMODE_WRITE) {
1643 stop_dac2(s);
1644 synchronize_irq();
1645 dealloc_dmabuf(&s->dma_dac2);
1646 }
1647 if (file->f_mode & FMODE_READ) {
1648 stop_adc(s);
1649 dealloc_dmabuf(&s->dma_adc);
1650 }
1651 s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
1652 up(&s->open_sem);
1653 wake_up(&s->open_wait);
1654 MOD_DEC_USE_COUNT;
1655 return 0;
1656 }
1657
1658 static /*const*/ struct file_operations es1370_audio_fops = {
1659 &es1370_llseek,
1660 &es1370_read,
1661 &es1370_write,
1662 NULL, /* readdir */
1663 &es1370_poll,
1664 &es1370_ioctl,
1665 &es1370_mmap,
1666 &es1370_open,
1667 NULL, /* flush */
1668 &es1370_release,
1669 NULL, /* fsync */
1670 NULL, /* fasync */
1671 NULL, /* check_media_change */
1672 NULL, /* revalidate */
1673 NULL, /* lock */
1674 };
1675
1676 /* --------------------------------------------------------------------- */
1677
1678 static ssize_t es1370_write_dac(struct file *file, const char *buffer, size_t count, loff_t *ppos)
1679 {
1680 struct es1370_state *s = (struct es1370_state *)file->private_data;
1681 ssize_t ret = 0;
1682 unsigned long flags;
1683 unsigned swptr;
1684 int cnt;
1685
1686 VALIDATE_STATE(s);
1687 if (ppos != &file->f_pos)
1688 return -ESPIPE;
1689 if (s->dma_dac1.mapped)
1690 return -ENXIO;
1691 if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
1692 return ret;
1693 if (!access_ok(VERIFY_READ, buffer, count))
1694 return -EFAULT;
1695 while (count > 0) {
1696 spin_lock_irqsave(&s->lock, flags);
1697 if (s->dma_dac1.count < 0) {
1698 s->dma_dac1.count = 0;
1699 s->dma_dac1.swptr = s->dma_dac1.hwptr;
1700 }
1701 swptr = s->dma_dac1.swptr;
1702 cnt = s->dma_dac1.dmasize-swptr;
1703 if (s->dma_dac1.count + cnt > s->dma_dac1.dmasize)
1704 cnt = s->dma_dac1.dmasize - s->dma_dac1.count;
1705 spin_unlock_irqrestore(&s->lock, flags);
1706 if (cnt > count)
1707 cnt = count;
1708 if (cnt <= 0) {
1709 start_dac1(s);
1710 if (file->f_flags & O_NONBLOCK)
1711 return ret ? ret : -EAGAIN;
1712 interruptible_sleep_on(&s->dma_dac1.wait);
1713 if (signal_pending(current))
1714 return ret ? ret : -ERESTARTSYS;
1715 continue;
1716 }
1717 if (copy_from_user(s->dma_dac1.rawbuf + swptr, buffer, cnt))
1718 return ret ? ret : -EFAULT;
1719 swptr = (swptr + cnt) % s->dma_dac1.dmasize;
1720 spin_lock_irqsave(&s->lock, flags);
1721 s->dma_dac1.swptr = swptr;
1722 s->dma_dac1.count += cnt;
1723 s->dma_dac1.endcleared = 0;
1724 spin_unlock_irqrestore(&s->lock, flags);
1725 count -= cnt;
1726 buffer += cnt;
1727 ret += cnt;
1728 start_dac1(s);
1729 }
1730 return ret;
1731 }
1732
1733 static unsigned int es1370_poll_dac(struct file *file, struct poll_table_struct *wait)
1734 {
1735 struct es1370_state *s = (struct es1370_state *)file->private_data;
1736 unsigned long flags;
1737 unsigned int mask = 0;
1738
1739 VALIDATE_STATE(s);
1740 poll_wait(file, &s->dma_dac1.wait, wait);
1741 spin_lock_irqsave(&s->lock, flags);
1742 es1370_update_ptr(s);
1743 if (s->dma_dac1.mapped) {
1744 if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
1745 mask |= POLLOUT | POLLWRNORM;
1746 } else {
1747 if ((signed)s->dma_dac1.dmasize >= s->dma_dac1.count + (signed)s->dma_dac1.fragsize)
1748 mask |= POLLOUT | POLLWRNORM;
1749 }
1750 spin_unlock_irqrestore(&s->lock, flags);
1751 return mask;
1752 }
1753
1754 static int es1370_mmap_dac(struct file *file, struct vm_area_struct *vma)
1755 {
1756 struct es1370_state *s = (struct es1370_state *)file->private_data;
1757 int ret;
1758 unsigned long size;
1759
1760 VALIDATE_STATE(s);
1761 if (!(vma->vm_flags & VM_WRITE))
1762 return -EINVAL;
1763 if ((ret = prog_dmabuf_dac1(s)) != 0)
1764 return ret;
1765 if (vma->vm_offset != 0)
1766 return -EINVAL;
1767 size = vma->vm_end - vma->vm_start;
1768 if (size > (PAGE_SIZE << s->dma_dac1.buforder))
1769 return -EINVAL;
1770 if (remap_page_range(vma->vm_start, virt_to_phys(s->dma_dac1.rawbuf), size, vma->vm_page_prot))
1771 return -EAGAIN;
1772 s->dma_dac1.mapped = 1;
1773 return 0;
1774 }
1775
1776 static int es1370_ioctl_dac(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1777 {
1778 struct es1370_state *s = (struct es1370_state *)file->private_data;
1779 unsigned long flags;
1780 audio_buf_info abinfo;
1781 count_info cinfo;
1782 unsigned ctrl;
1783 int val, ret;
1784
1785 VALIDATE_STATE(s);
1786 switch (cmd) {
1787 case OSS_GETVERSION:
1788 return put_user(SOUND_VERSION, (int *)arg);
1789
1790 case SNDCTL_DSP_SYNC:
1791 return drain_dac1(s, 0/*file->f_flags & O_NONBLOCK*/);
1792
1793 case SNDCTL_DSP_SETDUPLEX:
1794 return -EINVAL;
1795
1796 case SNDCTL_DSP_GETCAPS:
1797 return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg);
1798
1799 case SNDCTL_DSP_RESET:
1800 stop_dac1(s);
1801 synchronize_irq();
1802 s->dma_dac1.swptr = s->dma_dac1.hwptr = s->dma_dac1.count = s->dma_dac1.total_bytes = 0;
1803 return 0;
1804
1805 case SNDCTL_DSP_SPEED:
1806 get_user_ret(val, (int *)arg, -EFAULT);
1807 if (val >= 0) {
1808 stop_dac1(s);
1809 s->dma_dac1.ready = 0;
1810 for (ctrl = 0; ctrl <= 2; ctrl++)
1811 if (val < (dac1_samplerate[ctrl] + dac1_samplerate[ctrl+1]) / 2)
1812 break;
1813 spin_lock_irqsave(&s->lock, flags);
1814 s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (ctrl << CTRL_SH_WTSRSEL);
1815 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1816 spin_unlock_irqrestore(&s->lock, flags);
1817 }
1818 return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], (int *)arg);
1819
1820 case SNDCTL_DSP_STEREO:
1821 get_user_ret(val, (int *)arg, -EFAULT);
1822 stop_dac1(s);
1823 s->dma_dac1.ready = 0;
1824 spin_lock_irqsave(&s->lock, flags);
1825 if (val)
1826 s->sctrl |= SCTRL_P1SMB;
1827 else
1828 s->sctrl &= ~SCTRL_P1SMB;
1829 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1830 spin_unlock_irqrestore(&s->lock, flags);
1831 return 0;
1832
1833 case SNDCTL_DSP_CHANNELS:
1834 get_user_ret(val, (int *)arg, -EFAULT);
1835 if (val != 0) {
1836 if (s->dma_dac1.mapped)
1837 return -EINVAL;
1838 stop_dac1(s);
1839 s->dma_dac1.ready = 0;
1840 spin_lock_irqsave(&s->lock, flags);
1841 if (val >= 2)
1842 s->sctrl |= SCTRL_P1SMB;
1843 else
1844 s->sctrl &= ~SCTRL_P1SMB;
1845 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1846 spin_unlock_irqrestore(&s->lock, flags);
1847 }
1848 return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, (int *)arg);
1849
1850 case SNDCTL_DSP_GETFMTS: /* Returns a mask */
1851 return put_user(AFMT_S16_LE|AFMT_U8, (int *)arg);
1852
1853 case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
1854 get_user_ret(val, (int *)arg, -EFAULT);
1855 if (val != AFMT_QUERY) {
1856 stop_dac1(s);
1857 s->dma_dac1.ready = 0;
1858 spin_lock_irqsave(&s->lock, flags);
1859 if (val == AFMT_S16_LE)
1860 s->sctrl |= SCTRL_P1SEB;
1861 else
1862 s->sctrl &= ~SCTRL_P1SEB;
1863 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1864 spin_unlock_irqrestore(&s->lock, flags);
1865 }
1866 return put_user((s->sctrl & SCTRL_P1SEB) ? AFMT_S16_LE : AFMT_U8, (int *)arg);
1867
1868 case SNDCTL_DSP_POST:
1869 return 0;
1870
1871 case SNDCTL_DSP_GETTRIGGER:
1872 return put_user((s->ctrl & CTRL_DAC1_EN) ? PCM_ENABLE_OUTPUT : 0, (int *)arg);
1873
1874 case SNDCTL_DSP_SETTRIGGER:
1875 get_user_ret(val, (int *)arg, -EFAULT);
1876 if (val & PCM_ENABLE_OUTPUT) {
1877 if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
1878 return ret;
1879 start_dac1(s);
1880 } else
1881 stop_dac1(s);
1882 return 0;
1883
1884 case SNDCTL_DSP_GETOSPACE:
1885 if (!(s->ctrl & CTRL_DAC2_EN) && (val = prog_dmabuf_dac1(s)) != 0)
1886 return val;
1887 spin_lock_irqsave(&s->lock, flags);
1888 es1370_update_ptr(s);
1889 abinfo.fragsize = s->dma_dac1.fragsize;
1890 abinfo.bytes = s->dma_dac1.dmasize - s->dma_dac1.count;
1891 abinfo.fragstotal = s->dma_dac1.numfrag;
1892 abinfo.fragments = abinfo.bytes >> s->dma_dac1.fragshift;
1893 spin_unlock_irqrestore(&s->lock, flags);
1894 return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1895
1896 case SNDCTL_DSP_NONBLOCK:
1897 file->f_flags |= O_NONBLOCK;
1898 return 0;
1899
1900 case SNDCTL_DSP_GETODELAY:
1901 spin_lock_irqsave(&s->lock, flags);
1902 es1370_update_ptr(s);
1903 val = s->dma_dac1.count;
1904 spin_unlock_irqrestore(&s->lock, flags);
1905 return put_user(val, (int *)arg);
1906
1907 case SNDCTL_DSP_GETOPTR:
1908 if (!(file->f_mode & FMODE_WRITE))
1909 return -EINVAL;
1910 spin_lock_irqsave(&s->lock, flags);
1911 es1370_update_ptr(s);
1912 cinfo.bytes = s->dma_dac1.total_bytes;
1913 cinfo.blocks = s->dma_dac1.count >> s->dma_dac1.fragshift;
1914 cinfo.ptr = s->dma_dac1.hwptr;
1915 if (s->dma_dac1.mapped)
1916 s->dma_dac1.count &= s->dma_dac1.fragsize-1;
1917 spin_unlock_irqrestore(&s->lock, flags);
1918 return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
1919
1920 case SNDCTL_DSP_GETBLKSIZE:
1921 if ((val = prog_dmabuf_dac1(s)))
1922 return val;
1923 return put_user(s->dma_dac1.fragsize, (int *)arg);
1924
1925 case SNDCTL_DSP_SETFRAGMENT:
1926 get_user_ret(val, (int *)arg, -EFAULT);
1927 s->dma_dac1.ossfragshift = val & 0xffff;
1928 s->dma_dac1.ossmaxfrags = (val >> 16) & 0xffff;
1929 if (s->dma_dac1.ossfragshift < 4)
1930 s->dma_dac1.ossfragshift = 4;
1931 if (s->dma_dac1.ossfragshift > 15)
1932 s->dma_dac1.ossfragshift = 15;
1933 if (s->dma_dac1.ossmaxfrags < 4)
1934 s->dma_dac1.ossmaxfrags = 4;
1935 return 0;
1936
1937 case SNDCTL_DSP_SUBDIVIDE:
1938 if (s->dma_dac1.subdivision)
1939 return -EINVAL;
1940 get_user_ret(val, (int *)arg, -EFAULT);
1941 if (val != 1 && val != 2 && val != 4)
1942 return -EINVAL;
1943 s->dma_dac1.subdivision = val;
1944 return 0;
1945
1946 case SOUND_PCM_READ_RATE:
1947 return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], (int *)arg);
1948
1949 case SOUND_PCM_READ_CHANNELS:
1950 return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, (int *)arg);
1951
1952 case SOUND_PCM_READ_BITS:
1953 return put_user((s->sctrl & SCTRL_P1SEB) ? 16 : 8, (int *)arg);
1954
1955 case SOUND_PCM_WRITE_FILTER:
1956 case SNDCTL_DSP_SETSYNCRO:
1957 case SOUND_PCM_READ_FILTER:
1958 return -EINVAL;
1959
1960 }
1961 return mixer_ioctl(s, cmd, arg);
1962 }
1963
1964 static int es1370_open_dac(struct inode *inode, struct file *file)
1965 {
1966 int minor = MINOR(inode->i_rdev);
1967 struct es1370_state *s = devs;
1968 unsigned long flags;
1969
1970 while (s && ((s->dev_dac ^ minor) & ~0xf))
1971 s = s->next;
1972 if (!s)
1973 return -ENODEV;
1974 VALIDATE_STATE(s);
1975 /* we allow opening with O_RDWR, most programs do it although they will only write */
1976 #if 0
1977 if (file->f_mode & FMODE_READ)
1978 return -EPERM;
1979 #endif
1980 if (!(file->f_mode & FMODE_WRITE))
1981 return -EINVAL;
1982 file->private_data = s;
1983 /* wait for device to become free */
1984 down(&s->open_sem);
1985 while (s->open_mode & FMODE_DAC) {
1986 if (file->f_flags & O_NONBLOCK) {
1987 up(&s->open_sem);
1988 return -EBUSY;
1989 }
1990 up(&s->open_sem);
1991 interruptible_sleep_on(&s->open_wait);
1992 if (signal_pending(current))
1993 return -ERESTARTSYS;
1994 down(&s->open_sem);
1995 }
1996 s->dma_dac1.ossfragshift = s->dma_dac1.ossmaxfrags = s->dma_dac1.subdivision = 0;
1997 spin_lock_irqsave(&s->lock, flags);
1998 s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (1 << CTRL_SH_WTSRSEL);
1999 s->sctrl &= ~SCTRL_P1FMT;
2000 if ((minor & 0xf) == SND_DEV_DSP16)
2001 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P1FMT;
2002 else
2003 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P1FMT;
2004 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2005 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2006 spin_unlock_irqrestore(&s->lock, flags);
2007 s->open_mode |= FMODE_DAC;
2008 up(&s->open_sem);
2009 MOD_INC_USE_COUNT;
2010 return 0;
2011 }
2012
2013 static int es1370_release_dac(struct inode *inode, struct file *file)
2014 {
2015 struct es1370_state *s = (struct es1370_state *)file->private_data;
2016
2017 VALIDATE_STATE(s);
2018 drain_dac1(s, file->f_flags & O_NONBLOCK);
2019 down(&s->open_sem);
2020 stop_dac1(s);
2021 dealloc_dmabuf(&s->dma_dac1);
2022 s->open_mode &= ~FMODE_DAC;
2023 up(&s->open_sem);
2024 wake_up(&s->open_wait);
2025 MOD_DEC_USE_COUNT;
2026 return 0;
2027 }
2028
2029 static /*const*/ struct file_operations es1370_dac_fops = {
2030 &es1370_llseek,
2031 NULL, /* read */
2032 &es1370_write_dac,
2033 NULL, /* readdir */
2034 &es1370_poll_dac,
2035 &es1370_ioctl_dac,
2036 &es1370_mmap_dac,
2037 &es1370_open_dac,
2038 NULL, /* flush */
2039 &es1370_release_dac,
2040 NULL, /* fsync */
2041 NULL, /* fasync */
2042 NULL, /* check_media_change */
2043 NULL, /* revalidate */
2044 NULL, /* lock */
2045 };
2046
2047 /* --------------------------------------------------------------------- */
2048
2049 static ssize_t es1370_midi_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
2050 {
2051 struct es1370_state *s = (struct es1370_state *)file->private_data;
2052 ssize_t ret;
2053 unsigned long flags;
2054 unsigned ptr;
2055 int cnt;
2056
2057 VALIDATE_STATE(s);
2058 if (ppos != &file->f_pos)
2059 return -ESPIPE;
2060 if (!access_ok(VERIFY_WRITE, buffer, count))
2061 return -EFAULT;
2062 ret = 0;
2063 while (count > 0) {
2064 spin_lock_irqsave(&s->lock, flags);
2065 ptr = s->midi.ird;
2066 cnt = MIDIINBUF - ptr;
2067 if (s->midi.icnt < cnt)
2068 cnt = s->midi.icnt;
2069 spin_unlock_irqrestore(&s->lock, flags);
2070 if (cnt > count)
2071 cnt = count;
2072 if (cnt <= 0) {
2073 if (file->f_flags & O_NONBLOCK)
2074 return ret ? ret : -EAGAIN;
2075 interruptible_sleep_on(&s->midi.iwait);
2076 if (signal_pending(current))
2077 return ret ? ret : -ERESTARTSYS;
2078 continue;
2079 }
2080 if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt))
2081 return ret ? ret : -EFAULT;
2082 ptr = (ptr + cnt) % MIDIINBUF;
2083 spin_lock_irqsave(&s->lock, flags);
2084 s->midi.ird = ptr;
2085 s->midi.icnt -= cnt;
2086 spin_unlock_irqrestore(&s->lock, flags);
2087 count -= cnt;
2088 buffer += cnt;
2089 ret += cnt;
2090 }
2091 return ret;
2092 }
2093
2094 static ssize_t es1370_midi_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
2095 {
2096 struct es1370_state *s = (struct es1370_state *)file->private_data;
2097 ssize_t ret;
2098 unsigned long flags;
2099 unsigned ptr;
2100 int cnt;
2101
2102 VALIDATE_STATE(s);
2103 if (ppos != &file->f_pos)
2104 return -ESPIPE;
2105 if (!access_ok(VERIFY_READ, buffer, count))
2106 return -EFAULT;
2107 ret = 0;
2108 while (count > 0) {
2109 spin_lock_irqsave(&s->lock, flags);
2110 ptr = s->midi.owr;
2111 cnt = MIDIOUTBUF - ptr;
2112 if (s->midi.ocnt + cnt > MIDIOUTBUF)
2113 cnt = MIDIOUTBUF - s->midi.ocnt;
2114 if (cnt <= 0)
2115 es1370_handle_midi(s);
2116 spin_unlock_irqrestore(&s->lock, flags);
2117 if (cnt > count)
2118 cnt = count;
2119 if (cnt <= 0) {
2120 if (file->f_flags & O_NONBLOCK)
2121 return ret ? ret : -EAGAIN;
2122 interruptible_sleep_on(&s->midi.owait);
2123 if (signal_pending(current))
2124 return ret ? ret : -ERESTARTSYS;
2125 continue;
2126 }
2127 if (copy_from_user(s->midi.obuf + ptr, buffer, cnt))
2128 return ret ? ret : -EFAULT;
2129 ptr = (ptr + cnt) % MIDIOUTBUF;
2130 spin_lock_irqsave(&s->lock, flags);
2131 s->midi.owr = ptr;
2132 s->midi.ocnt += cnt;
2133 spin_unlock_irqrestore(&s->lock, flags);
2134 count -= cnt;
2135 buffer += cnt;
2136 ret += cnt;
2137 spin_lock_irqsave(&s->lock, flags);
2138 es1370_handle_midi(s);
2139 spin_unlock_irqrestore(&s->lock, flags);
2140 }
2141 return ret;
2142 }
2143
2144 static unsigned int es1370_midi_poll(struct file *file, struct poll_table_struct *wait)
2145 {
2146 struct es1370_state *s = (struct es1370_state *)file->private_data;
2147 unsigned long flags;
2148 unsigned int mask = 0;
2149
2150 VALIDATE_STATE(s);
2151 if (file->f_mode & FMODE_WRITE)
2152 poll_wait(file, &s->midi.owait, wait);
2153 if (file->f_mode & FMODE_READ)
2154 poll_wait(file, &s->midi.iwait, wait);
2155 spin_lock_irqsave(&s->lock, flags);
2156 if (file->f_mode & FMODE_READ) {
2157 if (s->midi.icnt > 0)
2158 mask |= POLLIN | POLLRDNORM;
2159 }
2160 if (file->f_mode & FMODE_WRITE) {
2161 if (s->midi.ocnt < MIDIOUTBUF)
2162 mask |= POLLOUT | POLLWRNORM;
2163 }
2164 spin_unlock_irqrestore(&s->lock, flags);
2165 return mask;
2166 }
2167
2168 static int es1370_midi_open(struct inode *inode, struct file *file)
2169 {
2170 int minor = MINOR(inode->i_rdev);
2171 struct es1370_state *s = devs;
2172 unsigned long flags;
2173
2174 while (s && s->dev_midi != minor)
2175 s = s->next;
2176 if (!s)
2177 return -ENODEV;
2178 VALIDATE_STATE(s);
2179 file->private_data = s;
2180 /* wait for device to become free */
2181 down(&s->open_sem);
2182 while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
2183 if (file->f_flags & O_NONBLOCK) {
2184 up(&s->open_sem);
2185 return -EBUSY;
2186 }
2187 up(&s->open_sem);
2188 interruptible_sleep_on(&s->open_wait);
2189 if (signal_pending(current))
2190 return -ERESTARTSYS;
2191 down(&s->open_sem);
2192 }
2193 spin_lock_irqsave(&s->lock, flags);
2194 if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2195 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2196 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2197 outb(UCTRL_CNTRL_SWR, s->io+ES1370_REG_UART_CONTROL);
2198 outb(0, s->io+ES1370_REG_UART_CONTROL);
2199 outb(0, s->io+ES1370_REG_UART_TEST);
2200 }
2201 if (file->f_mode & FMODE_READ) {
2202 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2203 }
2204 if (file->f_mode & FMODE_WRITE) {
2205 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2206 }
2207 s->ctrl |= CTRL_UART_EN;
2208 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2209 es1370_handle_midi(s);
2210 spin_unlock_irqrestore(&s->lock, flags);
2211 s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
2212 up(&s->open_sem);
2213 MOD_INC_USE_COUNT;
2214 return 0;
2215 }
2216
2217 static int es1370_midi_release(struct inode *inode, struct file *file)
2218 {
2219 struct es1370_state *s = (struct es1370_state *)file->private_data;
2220 DECLARE_WAITQUEUE(wait, current);
2221 unsigned long flags;
2222 unsigned count, tmo;
2223
2224 VALIDATE_STATE(s);
2225
2226 if (file->f_mode & FMODE_WRITE) {
2227 current->state = TASK_INTERRUPTIBLE;
2228 add_wait_queue(&s->midi.owait, &wait);
2229 for (;;) {
2230 spin_lock_irqsave(&s->lock, flags);
2231 count = s->midi.ocnt;
2232 spin_unlock_irqrestore(&s->lock, flags);
2233 if (count <= 0)
2234 break;
2235 if (signal_pending(current))
2236 break;
2237 if (file->f_flags & O_NONBLOCK) {
2238 remove_wait_queue(&s->midi.owait, &wait);
2239 current->state = TASK_RUNNING;
2240 return -EBUSY;
2241 }
2242 tmo = (count * HZ) / 3100;
2243 if (!schedule_timeout(tmo ? : 1) && tmo)
2244 DBG(printk(KERN_DEBUG "es1370: midi timed out??\n");)
2245 }
2246 remove_wait_queue(&s->midi.owait, &wait);
2247 current->state = TASK_RUNNING;
2248 }
2249 down(&s->open_sem);
2250 s->open_mode &= (~(file->f_mode << FMODE_MIDI_SHIFT)) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE);
2251 spin_lock_irqsave(&s->lock, flags);
2252 if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2253 s->ctrl &= ~CTRL_UART_EN;
2254 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2255 }
2256 spin_unlock_irqrestore(&s->lock, flags);
2257 up(&s->open_sem);
2258 wake_up(&s->open_wait);
2259 MOD_DEC_USE_COUNT;
2260 return 0;
2261 }
2262
2263 static /*const*/ struct file_operations es1370_midi_fops = {
2264 &es1370_llseek,
2265 &es1370_midi_read,
2266 &es1370_midi_write,
2267 NULL, /* readdir */
2268 &es1370_midi_poll,
2269 NULL, /* ioctl */
2270 NULL, /* mmap */
2271 &es1370_midi_open,
2272 NULL, /* flush */
2273 &es1370_midi_release,
2274 NULL, /* fsync */
2275 NULL, /* fasync */
2276 NULL, /* check_media_change */
2277 NULL, /* revalidate */
2278 NULL, /* lock */
2279 };
2280
2281 /* --------------------------------------------------------------------- */
2282
2283 /* maximum number of devices */
2284 #define NR_DEVICE 5
2285 #ifdef CONFIG_SOUND_ES1370_JOYPORT_BOOT
2286 static int joystick[NR_DEVICE] = { 1, 0, };
2287 #else
2288 static int joystick[NR_DEVICE] = { 0, };
2289 #endif
2290 static int lineout[NR_DEVICE] = { 0, };
2291 static int micbias[NR_DEVICE] = { 0, };
2292
2293 /* --------------------------------------------------------------------- */
2294
2295 static struct initvol {
2296 int mixch;
2297 int vol;
2298 } initvol[] __initdata = {
2299 { SOUND_MIXER_WRITE_VOLUME, 0x4040 },
2300 { SOUND_MIXER_WRITE_PCM, 0x4040 },
2301 { SOUND_MIXER_WRITE_SYNTH, 0x4040 },
2302 { SOUND_MIXER_WRITE_CD, 0x4040 },
2303 { SOUND_MIXER_WRITE_LINE, 0x4040 },
2304 { SOUND_MIXER_WRITE_LINE1, 0x4040 },
2305 { SOUND_MIXER_WRITE_LINE2, 0x4040 },
2306 { SOUND_MIXER_WRITE_LINE3, 0x4040 },
2307 { SOUND_MIXER_WRITE_MIC, 0x4040 },
2308 { SOUND_MIXER_WRITE_OGAIN, 0x4040 }
2309 };
2310
2311 #ifdef MODULE
2312 int __init init_module(void)
2313 #else
2314 int __init init_es1370(void)
2315 #endif
2316 {
2317 struct es1370_state *s;
2318 struct pci_dev *pcidev = NULL;
2319 mm_segment_t fs;
2320 int i, val, index = 0;
2321
2322 if (!pci_present()) /* No PCI bus in this machine! */
2323 return -ENODEV;
2324 printk(KERN_INFO "es1370: version v0.24 time " __TIME__ " " __DATE__ "\n");
2325 while (index < NR_DEVICE &&
2326 (pcidev = pci_find_device(PCI_VENDOR_ID_ENSONIQ, PCI_DEVICE_ID_ENSONIQ_ES1370, pcidev))) {
2327 if (pcidev->base_address[0] == 0 ||
2328 (pcidev->base_address[0] & PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_IO)
2329 continue;
2330 if (pcidev->irq == 0)
2331 continue;
2332 if (!(s = kmalloc(sizeof(struct es1370_state), GFP_KERNEL))) {
2333 printk(KERN_WARNING "es1370: out of memory\n");
2334 continue;
2335 }
2336 memset(s, 0, sizeof(struct es1370_state));
2337 init_waitqueue_head(&s->dma_adc.wait);
2338 init_waitqueue_head(&s->dma_dac1.wait);
2339 init_waitqueue_head(&s->dma_dac2.wait);
2340 init_waitqueue_head(&s->open_wait);
2341 init_waitqueue_head(&s->midi.iwait);
2342 init_waitqueue_head(&s->midi.owait);
2343 init_MUTEX(&s->open_sem);
2344 s->magic = ES1370_MAGIC;
2345 s->io = pcidev->base_address[0] & PCI_BASE_ADDRESS_IO_MASK;
2346 s->irq = pcidev->irq;
2347 if (check_region(s->io, ES1370_EXTENT)) {
2348 printk(KERN_ERR "es1370: io ports %#lx-%#lx in use\n", s->io, s->io+ES1370_EXTENT-1);
2349 goto err_region;
2350 }
2351 request_region(s->io, ES1370_EXTENT, "es1370");
2352 if (request_irq(s->irq, es1370_interrupt, SA_SHIRQ, "es1370", s)) {
2353 printk(KERN_ERR "es1370: irq %u in use\n", s->irq);
2354 goto err_irq;
2355 }
2356 /* initialize codec registers */
2357 /* note: setting CTRL_SERR_DIS is reported to break
2358 * mic bias setting (by Kim.Berts@fisub.mail.abb.com) */
2359 s->ctrl = CTRL_CDC_EN | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV) | (1 << CTRL_SH_WTSRSEL);
2360 if (joystick[index]) {
2361 if (check_region(0x200, JOY_EXTENT))
2362 printk(KERN_ERR "es1370: io port 0x200 in use\n");
2363 else
2364 s->ctrl |= CTRL_JYSTK_EN;
2365 }
2366 if (lineout[index])
2367 s->ctrl |= CTRL_XCTL0;
2368 if (micbias[index])
2369 s->ctrl |= CTRL_XCTL1;
2370 s->sctrl = 0;
2371 printk(KERN_INFO "es1370: found adapter at io %#lx irq %u\n"
2372 KERN_INFO "es1370: features: joystick %s, line %s, mic impedance %s\n",
2373 s->io, s->irq, (s->ctrl & CTRL_JYSTK_EN) ? "on" : "off",
2374 (s->ctrl & CTRL_XCTL0) ? "out" : "in",
2375 (s->ctrl & CTRL_XCTL1) ? "1" : "0");
2376 /* register devices */
2377 if ((s->dev_audio = register_sound_dsp(&es1370_audio_fops, -1)) < 0)
2378 goto err_dev1;
2379 if ((s->dev_mixer = register_sound_mixer(&es1370_mixer_fops, -1)) < 0)
2380 goto err_dev2;
2381 if ((s->dev_dac = register_sound_dsp(&es1370_dac_fops, -1)) < 0)
2382 goto err_dev3;
2383 if ((s->dev_midi = register_sound_midi(&es1370_midi_fops, -1)) < 0)
2384 goto err_dev4;
2385 /* initialize the chips */
2386 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2387 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2388 pci_set_master(pcidev); /* enable bus mastering */
2389 wrcodec(s, 0x16, 3); /* no RST, PD */
2390 wrcodec(s, 0x17, 0); /* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off the LRCLK2 PLL; program DAC_SYNC=0!! */
2391 wrcodec(s, 0x18, 0); /* recording source is mixer */
2392 wrcodec(s, 0x19, s->mix.micpreamp = 1); /* turn on MIC preamp */
2393 s->mix.imix = 1;
2394 fs = get_fs();
2395 set_fs(KERNEL_DS);
2396 val = SOUND_MASK_LINE|SOUND_MASK_SYNTH|SOUND_MASK_CD;
2397 mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val);
2398 for (i = 0; i < sizeof(initvol)/sizeof(initvol[0]); i++) {
2399 val = initvol[i].vol;
2400 mixer_ioctl(s, initvol[i].mixch, (unsigned long)&val);
2401 }
2402 set_fs(fs);
2403 /* queue it for later freeing */
2404 s->next = devs;
2405 devs = s;
2406 index++;
2407 continue;
2408
2409 err_dev4:
2410 unregister_sound_dsp(s->dev_dac);
2411 err_dev3:
2412 unregister_sound_mixer(s->dev_mixer);
2413 err_dev2:
2414 unregister_sound_dsp(s->dev_audio);
2415 err_dev1:
2416 printk(KERN_ERR "es1370: cannot register misc device\n");
2417 free_irq(s->irq, s);
2418 err_irq:
2419 release_region(s->io, ES1370_EXTENT);
2420 err_region:
2421 kfree_s(s, sizeof(struct es1370_state));
2422 }
2423 if (!devs)
2424 return -ENODEV;
2425 return 0;
2426 }
2427
2428 /* --------------------------------------------------------------------- */
2429
2430 #ifdef MODULE
2431
2432 MODULE_PARM(joystick, "1-" __MODULE_STRING(NR_DEVICE) "i");
2433 MODULE_PARM_DESC(joystick, "if 1 enables joystick interface (still need separate driver)");
2434 MODULE_PARM(lineout, "1-" __MODULE_STRING(NR_DEVICE) "i");
2435 MODULE_PARM_DESC(lineout, "if 1 the LINE input is converted to LINE out");
2436 MODULE_PARM(micbias, "1-" __MODULE_STRING(NR_DEVICE) "i");
2437 MODULE_PARM_DESC(micbias, "sets the +5V bias for an electret microphone");
2438
2439 MODULE_AUTHOR("Thomas M. Sailer, sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu");
2440 MODULE_DESCRIPTION("ES1370 AudioPCI Driver");
2441
2442 void cleanup_module(void)
2443 {
2444 struct es1370_state *s;
2445
2446 while ((s = devs)) {
2447 devs = devs->next;
2448 outl(CTRL_SERR_DIS | (1 << CTRL_SH_WTSRSEL), s->io+ES1370_REG_CONTROL); /* switch everything off */
2449 outl(0, s->io+ES1370_REG_SERIAL_CONTROL); /* clear serial interrupts */
2450 synchronize_irq();
2451 free_irq(s->irq, s);
2452 release_region(s->io, ES1370_EXTENT);
2453 unregister_sound_dsp(s->dev_audio);
2454 unregister_sound_mixer(s->dev_mixer);
2455 unregister_sound_dsp(s->dev_dac);
2456 unregister_sound_midi(s->dev_midi);
2457 kfree_s(s, sizeof(struct es1370_state));
2458 }
2459 printk(KERN_INFO "es1370: unloading\n");
2460 }
2461
2462 #endif /* MODULE */
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