?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Import 2.3.15pre2
[davej-history.git] / drivers / sound / es1370.c
blob0e113ef9f2bdc3bbd031d2cbe90a73c45d58c1a7
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 * 02.08.99 0.25 Added workaround for the "phantom write" bug first
105 * documented by Dave Sharpless from Anchor Games
106 * 03.08.99 0.26 adapt to Linus' new __setup/__initcall
107 * added kernel command line option "es1370=joystick[,lineout[,micbias]]"
108 * removed CONFIG_SOUND_ES1370_JOYPORT_BOOT kludge
109 * 12.08.99 0.27 module_init/__setup fixes
110 *
111 * some important things missing in Ensoniq documentation:
112 *
113 * Experimental PCLKDIV results: play the same waveforms on both DAC1 and DAC2
114 * and vary PCLKDIV to obtain zero beat.
115 * 5512sps: 254
116 * 44100sps: 30
117 * seems to be fs = 1411200/(PCLKDIV+2)
118 *
119 * should find out when curr_sample_ct is cleared and
120 * where exactly the CCB fetches data
121 *
122 * The card uses a 22.5792 MHz crystal.
123 * The LINEIN jack may be converted to an AOUT jack by
124 * setting pin 47 (XCTL0) of the ES1370 to high.
125 * Pin 48 (XCTL1) of the ES1370 sets the +5V bias for an electretmic
126 *
127 *
128 */
129
130 /*****************************************************************************/
131
132 #include <linux/version.h>
133 #include <linux/module.h>
134 #include <linux/string.h>
135 #include <linux/ioport.h>
136 #include <linux/sched.h>
137 #include <linux/delay.h>
138 #include <linux/sound.h>
139 #include <linux/malloc.h>
140 #include <linux/soundcard.h>
141 #include <linux/pci.h>
142 #include <asm/io.h>
143 #include <asm/dma.h>
144 #include <linux/init.h>
145 #include <linux/poll.h>
146 #include <asm/spinlock.h>
147 #include <asm/uaccess.h>
148 #include <asm/hardirq.h>
149
150 /* --------------------------------------------------------------------- */
151
152 #undef OSS_DOCUMENTED_MIXER_SEMANTICS
153 #define DBG(x) {}
154 /*#define DBG(x) {x}*/
155
156 /* --------------------------------------------------------------------- */
157
158 #ifndef PCI_VENDOR_ID_ENSONIQ
159 #define PCI_VENDOR_ID_ENSONIQ 0x1274
160 #endif
161 #ifndef PCI_DEVICE_ID_ENSONIQ_ES1370
162 #define PCI_DEVICE_ID_ENSONIQ_ES1370 0x5000
163 #endif
164
165 #define ES1370_MAGIC ((PCI_VENDOR_ID_ENSONIQ<<16)|PCI_DEVICE_ID_ENSONIQ_ES1370)
166
167 #define ES1370_EXTENT 0x40
168 #define JOY_EXTENT 8
169
170 #define ES1370_REG_CONTROL 0x00
171 #define ES1370_REG_STATUS 0x04
172 #define ES1370_REG_UART_DATA 0x08
173 #define ES1370_REG_UART_STATUS 0x09
174 #define ES1370_REG_UART_CONTROL 0x09
175 #define ES1370_REG_UART_TEST 0x0a
176 #define ES1370_REG_MEMPAGE 0x0c
177 #define ES1370_REG_CODEC 0x10
178 #define ES1370_REG_SERIAL_CONTROL 0x20
179 #define ES1370_REG_DAC1_SCOUNT 0x24
180 #define ES1370_REG_DAC2_SCOUNT 0x28
181 #define ES1370_REG_ADC_SCOUNT 0x2c
182
183 #define ES1370_REG_DAC1_FRAMEADR 0xc30
184 #define ES1370_REG_DAC1_FRAMECNT 0xc34
185 #define ES1370_REG_DAC2_FRAMEADR 0xc38
186 #define ES1370_REG_DAC2_FRAMECNT 0xc3c
187 #define ES1370_REG_ADC_FRAMEADR 0xd30
188 #define ES1370_REG_ADC_FRAMECNT 0xd34
189 #define ES1370_REG_PHANTOM_FRAMEADR 0xd38
190 #define ES1370_REG_PHANTOM_FRAMECNT 0xd3c
191
192 #define ES1370_FMT_U8_MONO 0
193 #define ES1370_FMT_U8_STEREO 1
194 #define ES1370_FMT_S16_MONO 2
195 #define ES1370_FMT_S16_STEREO 3
196 #define ES1370_FMT_STEREO 1
197 #define ES1370_FMT_S16 2
198 #define ES1370_FMT_MASK 3
199
200 static const unsigned sample_size[] = { 1, 2, 2, 4 };
201 static const unsigned sample_shift[] = { 0, 1, 1, 2 };
202
203 static const unsigned dac1_samplerate[] = { 5512, 11025, 22050, 44100 };
204
205 #define DAC2_SRTODIV(x) (((1411200+(x)/2)/(x))-2)
206 #define DAC2_DIVTOSR(x) (1411200/((x)+2))
207
208 #define CTRL_ADC_STOP 0x80000000 /* 1 = ADC stopped */
209 #define CTRL_XCTL1 0x40000000 /* electret mic bias */
210 #define CTRL_OPEN 0x20000000 /* no function, can be read and written */
211 #define CTRL_PCLKDIV 0x1fff0000 /* ADC/DAC2 clock divider */
212 #define CTRL_SH_PCLKDIV 16
213 #define CTRL_MSFMTSEL 0x00008000 /* MPEG serial data fmt: 0 = Sony, 1 = I2S */
214 #define CTRL_M_SBB 0x00004000 /* DAC2 clock: 0 = PCLKDIV, 1 = MPEG */
215 #define CTRL_WTSRSEL 0x00003000 /* DAC1 clock freq: 0=5512, 1=11025, 2=22050, 3=44100 */
216 #define CTRL_SH_WTSRSEL 12
217 #define CTRL_DAC_SYNC 0x00000800 /* 1 = DAC2 runs off DAC1 clock */
218 #define CTRL_CCB_INTRM 0x00000400 /* 1 = CCB "voice" ints enabled */
219 #define CTRL_M_CB 0x00000200 /* recording source: 0 = ADC, 1 = MPEG */
220 #define CTRL_XCTL0 0x00000100 /* 0 = Line in, 1 = Line out */
221 #define CTRL_BREQ 0x00000080 /* 1 = test mode (internal mem test) */
222 #define CTRL_DAC1_EN 0x00000040 /* enable DAC1 */
223 #define CTRL_DAC2_EN 0x00000020 /* enable DAC2 */
224 #define CTRL_ADC_EN 0x00000010 /* enable ADC */
225 #define CTRL_UART_EN 0x00000008 /* enable MIDI uart */
226 #define CTRL_JYSTK_EN 0x00000004 /* enable Joystick port (presumably at address 0x200) */
227 #define CTRL_CDC_EN 0x00000002 /* enable serial (CODEC) interface */
228 #define CTRL_SERR_DIS 0x00000001 /* 1 = disable PCI SERR signal */
229
230 #define STAT_INTR 0x80000000 /* wired or of all interrupt bits */
231 #define STAT_CSTAT 0x00000400 /* 1 = codec busy or codec write in progress */
232 #define STAT_CBUSY 0x00000200 /* 1 = codec busy */
233 #define STAT_CWRIP 0x00000100 /* 1 = codec write in progress */
234 #define STAT_VC 0x00000060 /* CCB int source, 0=DAC1, 1=DAC2, 2=ADC, 3=undef */
235 #define STAT_SH_VC 5
236 #define STAT_MCCB 0x00000010 /* CCB int pending */
237 #define STAT_UART 0x00000008 /* UART int pending */
238 #define STAT_DAC1 0x00000004 /* DAC1 int pending */
239 #define STAT_DAC2 0x00000002 /* DAC2 int pending */
240 #define STAT_ADC 0x00000001 /* ADC int pending */
241
242 #define USTAT_RXINT 0x80 /* UART rx int pending */
243 #define USTAT_TXINT 0x04 /* UART tx int pending */
244 #define USTAT_TXRDY 0x02 /* UART tx ready */
245 #define USTAT_RXRDY 0x01 /* UART rx ready */
246
247 #define UCTRL_RXINTEN 0x80 /* 1 = enable RX ints */
248 #define UCTRL_TXINTEN 0x60 /* TX int enable field mask */
249 #define UCTRL_ENA_TXINT 0x20 /* enable TX int */
250 #define UCTRL_CNTRL 0x03 /* control field */
251 #define UCTRL_CNTRL_SWR 0x03 /* software reset command */
252
253 #define SCTRL_P2ENDINC 0x00380000 /* */
254 #define SCTRL_SH_P2ENDINC 19
255 #define SCTRL_P2STINC 0x00070000 /* */
256 #define SCTRL_SH_P2STINC 16
257 #define SCTRL_R1LOOPSEL 0x00008000 /* 0 = loop mode */
258 #define SCTRL_P2LOOPSEL 0x00004000 /* 0 = loop mode */
259 #define SCTRL_P1LOOPSEL 0x00002000 /* 0 = loop mode */
260 #define SCTRL_P2PAUSE 0x00001000 /* 1 = pause mode */
261 #define SCTRL_P1PAUSE 0x00000800 /* 1 = pause mode */
262 #define SCTRL_R1INTEN 0x00000400 /* enable interrupt */
263 #define SCTRL_P2INTEN 0x00000200 /* enable interrupt */
264 #define SCTRL_P1INTEN 0x00000100 /* enable interrupt */
265 #define SCTRL_P1SCTRLD 0x00000080 /* reload sample count register for DAC1 */
266 #define SCTRL_P2DACSEN 0x00000040 /* 1 = DAC2 play back last sample when disabled */
267 #define SCTRL_R1SEB 0x00000020 /* 1 = 16bit */
268 #define SCTRL_R1SMB 0x00000010 /* 1 = stereo */
269 #define SCTRL_R1FMT 0x00000030 /* format mask */
270 #define SCTRL_SH_R1FMT 4
271 #define SCTRL_P2SEB 0x00000008 /* 1 = 16bit */
272 #define SCTRL_P2SMB 0x00000004 /* 1 = stereo */
273 #define SCTRL_P2FMT 0x0000000c /* format mask */
274 #define SCTRL_SH_P2FMT 2
275 #define SCTRL_P1SEB 0x00000002 /* 1 = 16bit */
276 #define SCTRL_P1SMB 0x00000001 /* 1 = stereo */
277 #define SCTRL_P1FMT 0x00000003 /* format mask */
278 #define SCTRL_SH_P1FMT 0
279
280 /* misc stuff */
281
282 #define FMODE_DAC 4 /* slight misuse of mode_t */
283
284 /* MIDI buffer sizes */
285
286 #define MIDIINBUF 256
287 #define MIDIOUTBUF 256
288
289 #define FMODE_MIDI_SHIFT 3
290 #define FMODE_MIDI_READ (FMODE_READ << FMODE_MIDI_SHIFT)
291 #define FMODE_MIDI_WRITE (FMODE_WRITE << FMODE_MIDI_SHIFT)
292
293 #define SND_DEV_DSP16 5
294
295 /* --------------------------------------------------------------------- */
296
297 struct es1370_state {
298 /* magic */
299 unsigned int magic;
300
301 /* we keep sb cards in a linked list */
302 struct es1370_state *next;
303
304 /* soundcore stuff */
305 int dev_audio;
306 int dev_mixer;
307 int dev_dac;
308 int dev_midi;
309
310 /* hardware resources */
311 unsigned long io; /* long for SPARC */
312 unsigned int irq;
313
314 /* mixer registers; there is no HW readback */
315 struct {
316 unsigned short vol[10];
317 unsigned int recsrc;
318 unsigned int modcnt;
319 unsigned short micpreamp;
320 unsigned int imix;
321 } mix;
322
323 /* wave stuff */
324 unsigned ctrl;
325 unsigned sctrl;
326
327 spinlock_t lock;
328 struct semaphore open_sem;
329 mode_t open_mode;
330 wait_queue_head_t open_wait;
331
332 struct dmabuf {
333 void *rawbuf;
334 unsigned buforder;
335 unsigned numfrag;
336 unsigned fragshift;
337 unsigned hwptr, swptr;
338 unsigned total_bytes;
339 int count;
340 unsigned error; /* over/underrun */
341 wait_queue_head_t wait;
342 /* redundant, but makes calculations easier */
343 unsigned fragsize;
344 unsigned dmasize;
345 unsigned fragsamples;
346 /* OSS stuff */
347 unsigned mapped:1;
348 unsigned ready:1;
349 unsigned endcleared:1;
350 unsigned ossfragshift;
351 int ossmaxfrags;
352 unsigned subdivision;
353 } dma_dac1, dma_dac2, dma_adc;
354
355 /* midi stuff */
356 struct {
357 unsigned ird, iwr, icnt;
358 unsigned ord, owr, ocnt;
359 wait_queue_head_t iwait;
360 wait_queue_head_t owait;
361 unsigned char ibuf[MIDIINBUF];
362 unsigned char obuf[MIDIOUTBUF];
363 } midi;
364 };
365
366 /* --------------------------------------------------------------------- */
367
368 static struct es1370_state *devs = NULL;
369
370 /*
371 * The following buffer is used to point the phantom write channel to,
372 * so that it cannot wreak havoc. The attribute makes sure it doesn't
373 * cross a page boundary and ensures dword alignment for the DMA engine
374 */
375 static unsigned char bugbuf[16] __attribute__ ((aligned (16)));
376
377 /* --------------------------------------------------------------------- */
378
379 extern inline unsigned ld2(unsigned int x)
380 {
381 unsigned r = 0;
382
383 if (x >= 0x10000) {
384 x >>= 16;
385 r += 16;
386 }
387 if (x >= 0x100) {
388 x >>= 8;
389 r += 8;
390 }
391 if (x >= 0x10) {
392 x >>= 4;
393 r += 4;
394 }
395 if (x >= 4) {
396 x >>= 2;
397 r += 2;
398 }
399 if (x >= 2)
400 r++;
401 return r;
402 }
403
404 /* --------------------------------------------------------------------- */
405
406 static void wrcodec(struct es1370_state *s, unsigned char idx, unsigned char data)
407 {
408 unsigned long tmo = jiffies + HZ/10;
409
410 do {
411 if (!(inl(s->io+ES1370_REG_STATUS) & STAT_CSTAT)) {
412 outw((((unsigned short)idx)<<8)|data, s->io+ES1370_REG_CODEC);
413 return;
414 }
415 schedule();
416 } while ((signed)(tmo-jiffies) > 0);
417 printk(KERN_ERR "es1370: write to codec register timeout\n");
418 }
419
420 /* --------------------------------------------------------------------- */
421
422 extern inline void stop_adc(struct es1370_state *s)
423 {
424 unsigned long flags;
425
426 spin_lock_irqsave(&s->lock, flags);
427 s->ctrl &= ~CTRL_ADC_EN;
428 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
429 spin_unlock_irqrestore(&s->lock, flags);
430 }
431
432 extern inline void stop_dac1(struct es1370_state *s)
433 {
434 unsigned long flags;
435
436 spin_lock_irqsave(&s->lock, flags);
437 s->ctrl &= ~CTRL_DAC1_EN;
438 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
439 spin_unlock_irqrestore(&s->lock, flags);
440 }
441
442 extern inline void stop_dac2(struct es1370_state *s)
443 {
444 unsigned long flags;
445
446 spin_lock_irqsave(&s->lock, flags);
447 s->ctrl &= ~CTRL_DAC2_EN;
448 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
449 spin_unlock_irqrestore(&s->lock, flags);
450 }
451
452 static void start_dac1(struct es1370_state *s)
453 {
454 unsigned long flags;
455 unsigned fragremain, fshift;
456
457 spin_lock_irqsave(&s->lock, flags);
458 if (!(s->ctrl & CTRL_DAC1_EN) && (s->dma_dac1.mapped || s->dma_dac1.count > 0)
459 && s->dma_dac1.ready) {
460 s->ctrl |= CTRL_DAC1_EN;
461 s->sctrl = (s->sctrl & ~(SCTRL_P1LOOPSEL | SCTRL_P1PAUSE | SCTRL_P1SCTRLD)) | SCTRL_P1INTEN;
462 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
463 fragremain = ((- s->dma_dac1.hwptr) & (s->dma_dac1.fragsize-1));
464 fshift = sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
465 if (fragremain < 2*fshift)
466 fragremain = s->dma_dac1.fragsize;
467 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_DAC1_SCOUNT);
468 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
469 outl((s->dma_dac1.fragsize >> fshift) - 1, s->io+ES1370_REG_DAC1_SCOUNT);
470 }
471 spin_unlock_irqrestore(&s->lock, flags);
472 }
473
474 static void start_dac2(struct es1370_state *s)
475 {
476 unsigned long flags;
477 unsigned fragremain, fshift;
478
479 spin_lock_irqsave(&s->lock, flags);
480 if (!(s->ctrl & CTRL_DAC2_EN) && (s->dma_dac2.mapped || s->dma_dac2.count > 0)
481 && s->dma_dac2.ready) {
482 s->ctrl |= CTRL_DAC2_EN;
483 s->sctrl = (s->sctrl & ~(SCTRL_P2LOOPSEL | SCTRL_P2PAUSE | SCTRL_P2DACSEN |
484 SCTRL_P2ENDINC | SCTRL_P2STINC)) | SCTRL_P2INTEN |
485 (((s->sctrl & SCTRL_P2FMT) ? 2 : 1) << SCTRL_SH_P2ENDINC) |
486 (0 << SCTRL_SH_P2STINC);
487 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
488 fragremain = ((- s->dma_dac2.hwptr) & (s->dma_dac2.fragsize-1));
489 fshift = sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
490 if (fragremain < 2*fshift)
491 fragremain = s->dma_dac2.fragsize;
492 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_DAC2_SCOUNT);
493 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
494 outl((s->dma_dac2.fragsize >> fshift) - 1, s->io+ES1370_REG_DAC2_SCOUNT);
495 }
496 spin_unlock_irqrestore(&s->lock, flags);
497 }
498
499 static void start_adc(struct es1370_state *s)
500 {
501 unsigned long flags;
502 unsigned fragremain, fshift;
503
504 spin_lock_irqsave(&s->lock, flags);
505 if (!(s->ctrl & CTRL_ADC_EN) && (s->dma_adc.mapped || s->dma_adc.count < (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize))
506 && s->dma_adc.ready) {
507 s->ctrl |= CTRL_ADC_EN;
508 s->sctrl = (s->sctrl & ~SCTRL_R1LOOPSEL) | SCTRL_R1INTEN;
509 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
510 fragremain = ((- s->dma_adc.hwptr) & (s->dma_adc.fragsize-1));
511 fshift = sample_shift[(s->sctrl & SCTRL_R1FMT) >> SCTRL_SH_R1FMT];
512 if (fragremain < 2*fshift)
513 fragremain = s->dma_adc.fragsize;
514 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_ADC_SCOUNT);
515 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
516 outl((s->dma_adc.fragsize >> fshift) - 1, s->io+ES1370_REG_ADC_SCOUNT);
517 }
518 spin_unlock_irqrestore(&s->lock, flags);
519 }
520
521 /* --------------------------------------------------------------------- */
522
523 #define DMABUF_DEFAULTORDER (17-PAGE_SHIFT)
524 #define DMABUF_MINORDER 1
525
526 extern inline void dealloc_dmabuf(struct dmabuf *db)
527 {
528 unsigned long map, mapend;
529
530 if (db->rawbuf) {
531 /* undo marking the pages as reserved */
532 mapend = MAP_NR(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
533 for (map = MAP_NR(db->rawbuf); map <= mapend; map++)
534 clear_bit(PG_reserved, &mem_map[map].flags);
535 free_pages((unsigned long)db->rawbuf, db->buforder);
536 }
537 db->rawbuf = NULL;
538 db->mapped = db->ready = 0;
539 }
540
541 static int prog_dmabuf(struct es1370_state *s, struct dmabuf *db, unsigned rate, unsigned fmt, unsigned reg)
542 {
543 int order;
544 unsigned bytepersec;
545 unsigned bufs;
546 unsigned long map, mapend;
547
548 db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
549 if (!db->rawbuf) {
550 db->ready = db->mapped = 0;
551 for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--)
552 if ((db->rawbuf = (void *)__get_free_pages(GFP_KERNEL, order)))
553 break;
554 if (!db->rawbuf)
555 return -ENOMEM;
556 db->buforder = order;
557 /* now mark the pages as reserved; otherwise remap_page_range doesn't do what we want */
558 mapend = MAP_NR(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
559 for (map = MAP_NR(db->rawbuf); map <= mapend; map++)
560 set_bit(PG_reserved, &mem_map[map].flags);
561 }
562 fmt &= ES1370_FMT_MASK;
563 bytepersec = rate << sample_shift[fmt];
564 bufs = PAGE_SIZE << db->buforder;
565 if (db->ossfragshift) {
566 if ((1000 << db->ossfragshift) < bytepersec)
567 db->fragshift = ld2(bytepersec/1000);
568 else
569 db->fragshift = db->ossfragshift;
570 } else {
571 db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1));
572 if (db->fragshift < 3)
573 db->fragshift = 3;
574 }
575 db->numfrag = bufs >> db->fragshift;
576 while (db->numfrag < 4 && db->fragshift > 3) {
577 db->fragshift--;
578 db->numfrag = bufs >> db->fragshift;
579 }
580 db->fragsize = 1 << db->fragshift;
581 if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
582 db->numfrag = db->ossmaxfrags;
583 db->fragsamples = db->fragsize >> sample_shift[fmt];
584 db->dmasize = db->numfrag << db->fragshift;
585 memset(db->rawbuf, (fmt & ES1370_FMT_S16) ? 0 : 0x80, db->dmasize);
586 outl((reg >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
587 outl(virt_to_bus(db->rawbuf), s->io+(reg & 0xff));
588 outl((db->dmasize >> 2)-1, s->io+((reg + 4) & 0xff));
589 db->ready = 1;
590 return 0;
591 }
592
593 extern inline int prog_dmabuf_adc(struct es1370_state *s)
594 {
595 stop_adc(s);
596 return prog_dmabuf(s, &s->dma_adc, DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV),
597 (s->sctrl >> SCTRL_SH_R1FMT) & ES1370_FMT_MASK, ES1370_REG_ADC_FRAMEADR);
598 }
599
600 extern inline int prog_dmabuf_dac2(struct es1370_state *s)
601 {
602 stop_dac2(s);
603 return prog_dmabuf(s, &s->dma_dac2, DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV),
604 (s->sctrl >> SCTRL_SH_P2FMT) & ES1370_FMT_MASK, ES1370_REG_DAC2_FRAMEADR);
605 }
606
607 extern inline int prog_dmabuf_dac1(struct es1370_state *s)
608 {
609 stop_dac1(s);
610 return prog_dmabuf(s, &s->dma_dac1, dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL],
611 (s->sctrl >> SCTRL_SH_P1FMT) & ES1370_FMT_MASK, ES1370_REG_DAC1_FRAMEADR);
612 }
613
614 extern inline unsigned get_hwptr(struct es1370_state *s, struct dmabuf *db, unsigned reg)
615 {
616 unsigned hwptr, diff;
617
618 outl((reg >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
619 hwptr = (inl(s->io+(reg & 0xff)) >> 14) & 0x3fffc;
620 diff = (db->dmasize + hwptr - db->hwptr) % db->dmasize;
621 db->hwptr = hwptr;
622 return diff;
623 }
624
625 extern inline void clear_advance(void *buf, unsigned bsize, unsigned bptr, unsigned len, unsigned char c)
626 {
627 if (bptr + len > bsize) {
628 unsigned x = bsize - bptr;
629 memset(((char *)buf) + bptr, c, x);
630 bptr = 0;
631 len -= x;
632 }
633 memset(((char *)buf) + bptr, c, len);
634 }
635
636 /* call with spinlock held! */
637 static void es1370_update_ptr(struct es1370_state *s)
638 {
639 int diff;
640
641 /* update ADC pointer */
642 if (s->ctrl & CTRL_ADC_EN) {
643 diff = get_hwptr(s, &s->dma_adc, ES1370_REG_ADC_FRAMECNT);
644 s->dma_adc.total_bytes += diff;
645 s->dma_adc.count += diff;
646 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
647 wake_up(&s->dma_adc.wait);
648 if (!s->dma_adc.mapped) {
649 if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) {
650 s->ctrl &= ~CTRL_ADC_EN;
651 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
652 s->dma_adc.error++;
653 }
654 }
655 }
656 /* update DAC1 pointer */
657 if (s->ctrl & CTRL_DAC1_EN) {
658 diff = get_hwptr(s, &s->dma_dac1, ES1370_REG_DAC1_FRAMECNT);
659 s->dma_dac1.total_bytes += diff;
660 if (s->dma_dac1.mapped) {
661 s->dma_dac1.count += diff;
662 if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
663 wake_up(&s->dma_dac1.wait);
664 } else {
665 s->dma_dac1.count -= diff;
666 if (s->dma_dac1.count <= 0) {
667 s->ctrl &= ~CTRL_DAC1_EN;
668 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
669 s->dma_dac1.error++;
670 } else if (s->dma_dac1.count <= (signed)s->dma_dac1.fragsize && !s->dma_dac1.endcleared) {
671 clear_advance(s->dma_dac1.rawbuf, s->dma_dac1.dmasize, s->dma_dac1.swptr,
672 s->dma_dac1.fragsize, (s->sctrl & SCTRL_P1SEB) ? 0 : 0x80);
673 s->dma_dac1.endcleared = 1;
674 }
675 if (s->dma_dac1.count + (signed)s->dma_dac1.fragsize <= (signed)s->dma_dac1.dmasize)
676 wake_up(&s->dma_dac1.wait);
677 }
678 }
679 /* update DAC2 pointer */
680 if (s->ctrl & CTRL_DAC2_EN) {
681 diff = get_hwptr(s, &s->dma_dac2, ES1370_REG_DAC2_FRAMECNT);
682 s->dma_dac2.total_bytes += diff;
683 if (s->dma_dac2.mapped) {
684 s->dma_dac2.count += diff;
685 if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
686 wake_up(&s->dma_dac2.wait);
687 } else {
688 s->dma_dac2.count -= diff;
689 if (s->dma_dac2.count <= 0) {
690 s->ctrl &= ~CTRL_DAC2_EN;
691 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
692 s->dma_dac2.error++;
693 } else if (s->dma_dac2.count <= (signed)s->dma_dac2.fragsize && !s->dma_dac2.endcleared) {
694 clear_advance(s->dma_dac2.rawbuf, s->dma_dac2.dmasize, s->dma_dac2.swptr,
695 s->dma_dac2.fragsize, (s->sctrl & SCTRL_P2SEB) ? 0 : 0x80);
696 s->dma_dac2.endcleared = 1;
697 }
698 if (s->dma_dac2.count + (signed)s->dma_dac2.fragsize <= (signed)s->dma_dac2.dmasize)
699 wake_up(&s->dma_dac2.wait);
700 }
701 }
702 }
703
704 /* hold spinlock for the following! */
705 static void es1370_handle_midi(struct es1370_state *s)
706 {
707 unsigned char ch;
708 int wake;
709
710 if (!(s->ctrl & CTRL_UART_EN))
711 return;
712 wake = 0;
713 while (inb(s->io+ES1370_REG_UART_STATUS) & USTAT_RXRDY) {
714 ch = inb(s->io+ES1370_REG_UART_DATA);
715 if (s->midi.icnt < MIDIINBUF) {
716 s->midi.ibuf[s->midi.iwr] = ch;
717 s->midi.iwr = (s->midi.iwr + 1) % MIDIINBUF;
718 s->midi.icnt++;
719 }
720 wake = 1;
721 }
722 if (wake)
723 wake_up(&s->midi.iwait);
724 wake = 0;
725 while ((inb(s->io+ES1370_REG_UART_STATUS) & USTAT_TXRDY) && s->midi.ocnt > 0) {
726 outb(s->midi.obuf[s->midi.ord], s->io+ES1370_REG_UART_DATA);
727 s->midi.ord = (s->midi.ord + 1) % MIDIOUTBUF;
728 s->midi.ocnt--;
729 if (s->midi.ocnt < MIDIOUTBUF-16)
730 wake = 1;
731 }
732 if (wake)
733 wake_up(&s->midi.owait);
734 outb((s->midi.ocnt > 0) ? UCTRL_RXINTEN | UCTRL_ENA_TXINT : UCTRL_RXINTEN, s->io+ES1370_REG_UART_CONTROL);
735 }
736
737 static void es1370_interrupt(int irq, void *dev_id, struct pt_regs *regs)
738 {
739 struct es1370_state *s = (struct es1370_state *)dev_id;
740 unsigned int intsrc, sctl;
741
742 /* fastpath out, to ease interrupt sharing */
743 intsrc = inl(s->io+ES1370_REG_STATUS);
744 if (!(intsrc & 0x80000000))
745 return;
746 spin_lock(&s->lock);
747 /* clear audio interrupts first */
748 sctl = s->sctrl;
749 if (intsrc & STAT_ADC)
750 sctl &= ~SCTRL_R1INTEN;
751 if (intsrc & STAT_DAC1)
752 sctl &= ~SCTRL_P1INTEN;
753 if (intsrc & STAT_DAC2)
754 sctl &= ~SCTRL_P2INTEN;
755 outl(sctl, s->io+ES1370_REG_SERIAL_CONTROL);
756 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
757 es1370_update_ptr(s);
758 es1370_handle_midi(s);
759 spin_unlock(&s->lock);
760 }
761
762 /* --------------------------------------------------------------------- */
763
764 static const char invalid_magic[] = KERN_CRIT "es1370: invalid magic value\n";
765
766 #define VALIDATE_STATE(s) \
767 ({ \
768 if (!(s) || (s)->magic != ES1370_MAGIC) { \
769 printk(invalid_magic); \
770 return -ENXIO; \
771 } \
772 })
773
774 /* --------------------------------------------------------------------- */
775
776 static const struct {
777 unsigned volidx:4;
778 unsigned left:4;
779 unsigned right:4;
780 unsigned stereo:1;
781 unsigned recmask:13;
782 unsigned avail:1;
783 } mixtable[SOUND_MIXER_NRDEVICES] = {
784 [SOUND_MIXER_VOLUME] = { 0, 0x0, 0x1, 1, 0x0000, 1 }, /* master */
785 [SOUND_MIXER_PCM] = { 1, 0x2, 0x3, 1, 0x0400, 1 }, /* voice */
786 [SOUND_MIXER_SYNTH] = { 2, 0x4, 0x5, 1, 0x0060, 1 }, /* FM */
787 [SOUND_MIXER_CD] = { 3, 0x6, 0x7, 1, 0x0006, 1 }, /* CD */
788 [SOUND_MIXER_LINE] = { 4, 0x8, 0x9, 1, 0x0018, 1 }, /* Line */
789 [SOUND_MIXER_LINE1] = { 5, 0xa, 0xb, 1, 0x1800, 1 }, /* AUX */
790 [SOUND_MIXER_LINE2] = { 6, 0xc, 0x0, 0, 0x0100, 1 }, /* Mono1 */
791 [SOUND_MIXER_LINE3] = { 7, 0xd, 0x0, 0, 0x0200, 1 }, /* Mono2 */
792 [SOUND_MIXER_MIC] = { 8, 0xe, 0x0, 0, 0x0001, 1 }, /* Mic */
793 [SOUND_MIXER_OGAIN] = { 9, 0xf, 0x0, 0, 0x0000, 1 } /* mono out */
794 };
795
796 static int mixer_ioctl(struct es1370_state *s, unsigned int cmd, unsigned long arg)
797 {
798 unsigned long flags;
799 int i, val, j;
800 unsigned char l, r, rl, rr;
801
802 VALIDATE_STATE(s);
803 if (cmd == SOUND_MIXER_PRIVATE1) {
804 /* enable/disable/query mixer preamp */
805 get_user_ret(val, (int *)arg, -EFAULT);
806 if (val != -1) {
807 s->mix.micpreamp = !!val;
808 wrcodec(s, 0x19, s->mix.micpreamp);
809 }
810 return put_user(s->mix.micpreamp, (int *)arg);
811 }
812 if (cmd == SOUND_MIXER_PRIVATE2) {
813 /* enable/disable/query use of linein as second lineout */
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_XCTL0;
819 else
820 s->ctrl &= ~CTRL_XCTL0;
821 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
822 spin_unlock_irqrestore(&s->lock, flags);
823 }
824 return put_user((s->ctrl & CTRL_XCTL0) ? 1 : 0, (int *)arg);
825 }
826 if (cmd == SOUND_MIXER_PRIVATE3) {
827 /* enable/disable/query microphone impedance setting */
828 get_user_ret(val, (int *)arg, -EFAULT);
829 if (val != -1) {
830 spin_lock_irqsave(&s->lock, flags);
831 if (val)
832 s->ctrl |= CTRL_XCTL1;
833 else
834 s->ctrl &= ~CTRL_XCTL1;
835 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
836 spin_unlock_irqrestore(&s->lock, flags);
837 }
838 return put_user((s->ctrl & CTRL_XCTL1) ? 1 : 0, (int *)arg);
839 }
840 if (cmd == SOUND_MIXER_INFO) {
841 mixer_info info;
842 strncpy(info.id, "ES1370", sizeof(info.id));
843 strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
844 info.modify_counter = s->mix.modcnt;
845 if (copy_to_user((void *)arg, &info, sizeof(info)))
846 return -EFAULT;
847 return 0;
848 }
849 if (cmd == SOUND_OLD_MIXER_INFO) {
850 _old_mixer_info info;
851 strncpy(info.id, "ES1370", sizeof(info.id));
852 strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
853 if (copy_to_user((void *)arg, &info, sizeof(info)))
854 return -EFAULT;
855 return 0;
856 }
857 if (cmd == OSS_GETVERSION)
858 return put_user(SOUND_VERSION, (int *)arg);
859 if (_IOC_TYPE(cmd) != 'M' || _IOC_SIZE(cmd) != sizeof(int))
860 return -EINVAL;
861 if (_IOC_DIR(cmd) == _IOC_READ) {
862 switch (_IOC_NR(cmd)) {
863 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
864 return put_user(s->mix.recsrc, (int *)arg);
865
866 case SOUND_MIXER_DEVMASK: /* Arg contains a bit for each supported device */
867 val = SOUND_MASK_IMIX;
868 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
869 if (mixtable[i].avail)
870 val |= 1 << i;
871 return put_user(val, (int *)arg);
872
873 case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
874 for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
875 if (mixtable[i].recmask)
876 val |= 1 << i;
877 return put_user(val, (int *)arg);
878
879 case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
880 for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
881 if (mixtable[i].stereo)
882 val |= 1 << i;
883 return put_user(val, (int *)arg);
884
885 case SOUND_MIXER_CAPS:
886 return put_user(0, (int *)arg);
887
888 case SOUND_MIXER_IMIX:
889 return put_user(s->mix.imix, (int *)arg);
890
891 default:
892 i = _IOC_NR(cmd);
893 if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
894 return -EINVAL;
895 return put_user(s->mix.vol[mixtable[i].volidx], (int *)arg);
896 }
897 }
898 if (_IOC_DIR(cmd) != (_IOC_READ|_IOC_WRITE))
899 return -EINVAL;
900 s->mix.modcnt++;
901 switch (_IOC_NR(cmd)) {
902
903 case SOUND_MIXER_IMIX:
904 if (arg == 0)
905 return -EFAULT;
906 get_user_ret(s->mix.imix,(int *)arg, -EFAULT);
907 val = s->mix.recsrc;
908 /* fall through */
909
910 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
911 get_user_ret(val, (int *)arg, -EFAULT);
912 for (j = i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
913 if (!(val & (1 << i)))
914 continue;
915 if (!mixtable[i].recmask) {
916 val &= ~(1 << i);
917 continue;
918 }
919 j |= mixtable[i].recmask;
920 }
921 s->mix.recsrc = val;
922 wrcodec(s, 0x12, j & 0xd5);
923 wrcodec(s, 0x13, j & 0xaa);
924 wrcodec(s, 0x14, (j >> 8) & 0x17);
925 wrcodec(s, 0x15, (j >> 8) & 0x0f);
926 i = (j & 0x37f) | ((j << 1) & 0x3000) | 0xc60;
927 if (!s->mix.imix) {
928 i &= 0xff60; /* mute record and line monitor */
929 }
930 wrcodec(s, 0x10, i);
931 wrcodec(s, 0x11, i >> 8);
932 return 0;
933
934 default:
935 i = _IOC_NR(cmd);
936 if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
937 return -EINVAL;
938 get_user_ret(val, (int *)arg, -EFAULT);
939 l = val & 0xff;
940 if (l > 100)
941 l = 100;
942 if (mixtable[i].stereo) {
943 r = (val >> 8) & 0xff;
944 if (r > 100)
945 r = 100;
946 if (l < 7) {
947 rl = 0x80;
948 l = 0;
949 } else {
950 rl = 31 - ((l - 7) / 3);
951 l = (31 - rl) * 3 + 7;
952 }
953 if (r < 7) {
954 rr = 0x80;
955 r = 0;
956 } else {
957 rr = 31 - ((r - 7) / 3);
958 r = (31 - rr) * 3 + 7;
959 }
960 wrcodec(s, mixtable[i].right, rr);
961 } else {
962 if (mixtable[i].left == 15) {
963 if (l < 2) {
964 rr = rl = 0x80;
965 r = l = 0;
966 } else {
967 rl = 7 - ((l - 2) / 14);
968 r = l = (7 - rl) * 14 + 2;
969 }
970 } else {
971 if (l < 7) {
972 rl = 0x80;
973 r = l = 0;
974 } else {
975 rl = 31 - ((l - 7) / 3);
976 r = l = (31 - rl) * 3 + 7;
977 }
978 }
979 }
980 wrcodec(s, mixtable[i].left, rl);
981 #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
982 s->mix.vol[mixtable[i].volidx] = ((unsigned int)r << 8) | l;
983 #else
984 s->mix.vol[mixtable[i].volidx] = val;
985 #endif
986 return put_user(s->mix.vol[mixtable[i].volidx], (int *)arg);
987 }
988 }
989
990 /* --------------------------------------------------------------------- */
991
992 static loff_t es1370_llseek(struct file *file, loff_t offset, int origin)
993 {
994 return -ESPIPE;
995 }
996
997 /* --------------------------------------------------------------------- */
998
999 static int es1370_open_mixdev(struct inode *inode, struct file *file)
1000 {
1001 int minor = MINOR(inode->i_rdev);
1002 struct es1370_state *s = devs;
1003
1004 while (s && s->dev_mixer != minor)
1005 s = s->next;
1006 if (!s)
1007 return -ENODEV;
1008 VALIDATE_STATE(s);
1009 file->private_data = s;
1010 MOD_INC_USE_COUNT;
1011 return 0;
1012 }
1013
1014 static int es1370_release_mixdev(struct inode *inode, struct file *file)
1015 {
1016 struct es1370_state *s = (struct es1370_state *)file->private_data;
1017
1018 VALIDATE_STATE(s);
1019 MOD_DEC_USE_COUNT;
1020 return 0;
1021 }
1022
1023 static int es1370_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1024 {
1025 return mixer_ioctl((struct es1370_state *)file->private_data, cmd, arg);
1026 }
1027
1028 static /*const*/ struct file_operations es1370_mixer_fops = {
1029 &es1370_llseek,
1030 NULL, /* read */
1031 NULL, /* write */
1032 NULL, /* readdir */
1033 NULL, /* poll */
1034 &es1370_ioctl_mixdev,
1035 NULL, /* mmap */
1036 &es1370_open_mixdev,
1037 NULL, /* flush */
1038 &es1370_release_mixdev,
1039 NULL, /* fsync */
1040 NULL, /* fasync */
1041 NULL, /* check_media_change */
1042 NULL, /* revalidate */
1043 NULL, /* lock */
1044 };
1045
1046 /* --------------------------------------------------------------------- */
1047
1048 static int drain_dac1(struct es1370_state *s, int nonblock)
1049 {
1050 DECLARE_WAITQUEUE(wait, current);
1051 unsigned long flags;
1052 int count, tmo;
1053
1054 if (s->dma_dac1.mapped || !s->dma_dac1.ready)
1055 return 0;
1056 current->state = TASK_INTERRUPTIBLE;
1057 add_wait_queue(&s->dma_dac1.wait, &wait);
1058 for (;;) {
1059 spin_lock_irqsave(&s->lock, flags);
1060 count = s->dma_dac1.count;
1061 spin_unlock_irqrestore(&s->lock, flags);
1062 if (count <= 0)
1063 break;
1064 if (signal_pending(current))
1065 break;
1066 if (nonblock) {
1067 remove_wait_queue(&s->dma_dac1.wait, &wait);
1068 current->state = TASK_RUNNING;
1069 return -EBUSY;
1070 }
1071 tmo = 3 * HZ * (count + s->dma_dac1.fragsize) / 2
1072 / dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL];
1073 tmo >>= sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
1074 if (!schedule_timeout(tmo + 1))
1075 DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
1076 }
1077 remove_wait_queue(&s->dma_dac1.wait, &wait);
1078 current->state = TASK_RUNNING;
1079 if (signal_pending(current))
1080 return -ERESTARTSYS;
1081 return 0;
1082 }
1083
1084 static int drain_dac2(struct es1370_state *s, int nonblock)
1085 {
1086 DECLARE_WAITQUEUE(wait, current);
1087 unsigned long flags;
1088 int count, tmo;
1089
1090 if (s->dma_dac2.mapped || !s->dma_dac2.ready)
1091 return 0;
1092 current->state = TASK_INTERRUPTIBLE;
1093 add_wait_queue(&s->dma_dac2.wait, &wait);
1094 for (;;) {
1095 spin_lock_irqsave(&s->lock, flags);
1096 count = s->dma_dac2.count;
1097 spin_unlock_irqrestore(&s->lock, flags);
1098 if (count <= 0)
1099 break;
1100 if (signal_pending(current))
1101 break;
1102 if (nonblock) {
1103 remove_wait_queue(&s->dma_dac2.wait, &wait);
1104 current->state = TASK_RUNNING;
1105 return -EBUSY;
1106 }
1107 tmo = 3 * HZ * (count + s->dma_dac2.fragsize) / 2
1108 / DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV);
1109 tmo >>= sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
1110 if (!schedule_timeout(tmo + 1))
1111 DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
1112 }
1113 remove_wait_queue(&s->dma_dac2.wait, &wait);
1114 current->state = TASK_RUNNING;
1115 if (signal_pending(current))
1116 return -ERESTARTSYS;
1117 return 0;
1118 }
1119
1120 /* --------------------------------------------------------------------- */
1121
1122 static ssize_t es1370_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
1123 {
1124 struct es1370_state *s = (struct es1370_state *)file->private_data;
1125 ssize_t ret;
1126 unsigned long flags;
1127 unsigned swptr;
1128 int cnt;
1129
1130 VALIDATE_STATE(s);
1131 if (ppos != &file->f_pos)
1132 return -ESPIPE;
1133 if (s->dma_adc.mapped)
1134 return -ENXIO;
1135 if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
1136 return ret;
1137 if (!access_ok(VERIFY_WRITE, buffer, count))
1138 return -EFAULT;
1139 ret = 0;
1140 while (count > 0) {
1141 spin_lock_irqsave(&s->lock, flags);
1142 swptr = s->dma_adc.swptr;
1143 cnt = s->dma_adc.dmasize-swptr;
1144 if (s->dma_adc.count < cnt)
1145 cnt = s->dma_adc.count;
1146 spin_unlock_irqrestore(&s->lock, flags);
1147 if (cnt > count)
1148 cnt = count;
1149 if (cnt <= 0) {
1150 start_adc(s);
1151 if (file->f_flags & O_NONBLOCK)
1152 return ret ? ret : -EAGAIN;
1153 interruptible_sleep_on(&s->dma_adc.wait);
1154 if (signal_pending(current))
1155 return ret ? ret : -ERESTARTSYS;
1156 continue;
1157 }
1158 if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt))
1159 return ret ? ret : -EFAULT;
1160 swptr = (swptr + cnt) % s->dma_adc.dmasize;
1161 spin_lock_irqsave(&s->lock, flags);
1162 s->dma_adc.swptr = swptr;
1163 s->dma_adc.count -= cnt;
1164 spin_unlock_irqrestore(&s->lock, flags);
1165 count -= cnt;
1166 buffer += cnt;
1167 ret += cnt;
1168 start_adc(s);
1169 }
1170 return ret;
1171 }
1172
1173 static ssize_t es1370_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
1174 {
1175 struct es1370_state *s = (struct es1370_state *)file->private_data;
1176 ssize_t ret;
1177 unsigned long flags;
1178 unsigned swptr;
1179 int cnt;
1180
1181 VALIDATE_STATE(s);
1182 if (ppos != &file->f_pos)
1183 return -ESPIPE;
1184 if (s->dma_dac2.mapped)
1185 return -ENXIO;
1186 if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
1187 return ret;
1188 if (!access_ok(VERIFY_READ, buffer, count))
1189 return -EFAULT;
1190 ret = 0;
1191 while (count > 0) {
1192 spin_lock_irqsave(&s->lock, flags);
1193 if (s->dma_dac2.count < 0) {
1194 s->dma_dac2.count = 0;
1195 s->dma_dac2.swptr = s->dma_dac2.hwptr;
1196 }
1197 swptr = s->dma_dac2.swptr;
1198 cnt = s->dma_dac2.dmasize-swptr;
1199 if (s->dma_dac2.count + cnt > s->dma_dac2.dmasize)
1200 cnt = s->dma_dac2.dmasize - s->dma_dac2.count;
1201 spin_unlock_irqrestore(&s->lock, flags);
1202 if (cnt > count)
1203 cnt = count;
1204 if (cnt <= 0) {
1205 start_dac2(s);
1206 if (file->f_flags & O_NONBLOCK)
1207 return ret ? ret : -EAGAIN;
1208 interruptible_sleep_on(&s->dma_dac2.wait);
1209 if (signal_pending(current))
1210 return ret ? ret : -ERESTARTSYS;
1211 continue;
1212 }
1213 if (copy_from_user(s->dma_dac2.rawbuf + swptr, buffer, cnt))
1214 return ret ? ret : -EFAULT;
1215 swptr = (swptr + cnt) % s->dma_dac2.dmasize;
1216 spin_lock_irqsave(&s->lock, flags);
1217 s->dma_dac2.swptr = swptr;
1218 s->dma_dac2.count += cnt;
1219 s->dma_dac2.endcleared = 0;
1220 spin_unlock_irqrestore(&s->lock, flags);
1221 count -= cnt;
1222 buffer += cnt;
1223 ret += cnt;
1224 start_dac2(s);
1225 }
1226 return ret;
1227 }
1228
1229 static unsigned int es1370_poll(struct file *file, struct poll_table_struct *wait)
1230 {
1231 struct es1370_state *s = (struct es1370_state *)file->private_data;
1232 unsigned long flags;
1233 unsigned int mask = 0;
1234
1235 VALIDATE_STATE(s);
1236 if (file->f_mode & FMODE_WRITE)
1237 poll_wait(file, &s->dma_dac2.wait, wait);
1238 if (file->f_mode & FMODE_READ)
1239 poll_wait(file, &s->dma_adc.wait, wait);
1240 spin_lock_irqsave(&s->lock, flags);
1241 es1370_update_ptr(s);
1242 if (file->f_mode & FMODE_READ) {
1243 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
1244 mask |= POLLIN | POLLRDNORM;
1245 }
1246 if (file->f_mode & FMODE_WRITE) {
1247 if (s->dma_dac2.mapped) {
1248 if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
1249 mask |= POLLOUT | POLLWRNORM;
1250 } else {
1251 if ((signed)s->dma_dac2.dmasize >= s->dma_dac2.count + (signed)s->dma_dac2.fragsize)
1252 mask |= POLLOUT | POLLWRNORM;
1253 }
1254 }
1255 spin_unlock_irqrestore(&s->lock, flags);
1256 return mask;
1257 }
1258
1259 static int es1370_mmap(struct file *file, struct vm_area_struct *vma)
1260 {
1261 struct es1370_state *s = (struct es1370_state *)file->private_data;
1262 struct dmabuf *db;
1263 int ret;
1264 unsigned long size;
1265
1266 VALIDATE_STATE(s);
1267 if (vma->vm_flags & VM_WRITE) {
1268 if ((ret = prog_dmabuf_dac2(s)) != 0)
1269 return ret;
1270 db = &s->dma_dac2;
1271 } else if (vma->vm_flags & VM_READ) {
1272 if ((ret = prog_dmabuf_adc(s)) != 0)
1273 return ret;
1274 db = &s->dma_adc;
1275 } else
1276 return -EINVAL;
1277 if (vma->vm_offset != 0)
1278 return -EINVAL;
1279 size = vma->vm_end - vma->vm_start;
1280 if (size > (PAGE_SIZE << db->buforder))
1281 return -EINVAL;
1282 if (remap_page_range(vma->vm_start, virt_to_phys(db->rawbuf), size, vma->vm_page_prot))
1283 return -EAGAIN;
1284 db->mapped = 1;
1285 return 0;
1286 }
1287
1288 static int es1370_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1289 {
1290 struct es1370_state *s = (struct es1370_state *)file->private_data;
1291 unsigned long flags;
1292 audio_buf_info abinfo;
1293 count_info cinfo;
1294 int val, mapped, ret;
1295
1296 VALIDATE_STATE(s);
1297 mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac2.mapped) ||
1298 ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
1299 switch (cmd) {
1300 case OSS_GETVERSION:
1301 return put_user(SOUND_VERSION, (int *)arg);
1302
1303 case SNDCTL_DSP_SYNC:
1304 if (file->f_mode & FMODE_WRITE)
1305 return drain_dac2(s, 0/*file->f_flags & O_NONBLOCK*/);
1306 return 0;
1307
1308 case SNDCTL_DSP_SETDUPLEX:
1309 return 0;
1310
1311 case SNDCTL_DSP_GETCAPS:
1312 return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg);
1313
1314 case SNDCTL_DSP_RESET:
1315 if (file->f_mode & FMODE_WRITE) {
1316 stop_dac2(s);
1317 synchronize_irq();
1318 s->dma_dac2.swptr = s->dma_dac2.hwptr = s->dma_dac2.count = s->dma_dac2.total_bytes = 0;
1319 }
1320 if (file->f_mode & FMODE_READ) {
1321 stop_adc(s);
1322 synchronize_irq();
1323 s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
1324 }
1325 return 0;
1326
1327 case SNDCTL_DSP_SPEED:
1328 get_user_ret(val, (int *)arg, -EFAULT);
1329 if (val >= 0) {
1330 if (s->open_mode & (~file->f_mode) & (FMODE_READ|FMODE_WRITE))
1331 return -EINVAL;
1332 if (val < 4000)
1333 val = 4000;
1334 if (val > 50000)
1335 val = 50000;
1336 stop_adc(s);
1337 stop_dac2(s);
1338 s->dma_adc.ready = s->dma_dac2.ready = 0;
1339 spin_lock_irqsave(&s->lock, flags);
1340 s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(val) << CTRL_SH_PCLKDIV);
1341 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1342 spin_unlock_irqrestore(&s->lock, flags);
1343 }
1344 return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), (int *)arg);
1345
1346 case SNDCTL_DSP_STEREO:
1347 get_user_ret(val, (int *)arg, -EFAULT);
1348 if (file->f_mode & FMODE_READ) {
1349 stop_adc(s);
1350 s->dma_adc.ready = 0;
1351 spin_lock_irqsave(&s->lock, flags);
1352 if (val)
1353 s->sctrl |= SCTRL_R1SMB;
1354 else
1355 s->sctrl &= ~SCTRL_R1SMB;
1356 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1357 spin_unlock_irqrestore(&s->lock, flags);
1358 }
1359 if (file->f_mode & FMODE_WRITE) {
1360 stop_dac2(s);
1361 s->dma_dac2.ready = 0;
1362 spin_lock_irqsave(&s->lock, flags);
1363 if (val)
1364 s->sctrl |= SCTRL_P2SMB;
1365 else
1366 s->sctrl &= ~SCTRL_P2SMB;
1367 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1368 spin_unlock_irqrestore(&s->lock, flags);
1369 }
1370 return 0;
1371
1372 case SNDCTL_DSP_CHANNELS:
1373 get_user_ret(val, (int *)arg, -EFAULT);
1374 if (val != 0) {
1375 if (file->f_mode & FMODE_READ) {
1376 stop_adc(s);
1377 s->dma_adc.ready = 0;
1378 spin_lock_irqsave(&s->lock, flags);
1379 if (val >= 2)
1380 s->sctrl |= SCTRL_R1SMB;
1381 else
1382 s->sctrl &= ~SCTRL_R1SMB;
1383 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1384 spin_unlock_irqrestore(&s->lock, flags);
1385 }
1386 if (file->f_mode & FMODE_WRITE) {
1387 stop_dac2(s);
1388 s->dma_dac2.ready = 0;
1389 spin_lock_irqsave(&s->lock, flags);
1390 if (val >= 2)
1391 s->sctrl |= SCTRL_P2SMB;
1392 else
1393 s->sctrl &= ~SCTRL_P2SMB;
1394 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1395 spin_unlock_irqrestore(&s->lock, flags);
1396 }
1397 }
1398 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ? 2 : 1, (int *)arg);
1399
1400 case SNDCTL_DSP_GETFMTS: /* Returns a mask */
1401 return put_user(AFMT_S16_LE|AFMT_U8, (int *)arg);
1402
1403 case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
1404 get_user_ret(val, (int *)arg, -EFAULT);
1405 if (val != AFMT_QUERY) {
1406 if (file->f_mode & FMODE_READ) {
1407 stop_adc(s);
1408 s->dma_adc.ready = 0;
1409 spin_lock_irqsave(&s->lock, flags);
1410 if (val == AFMT_S16_LE)
1411 s->sctrl |= SCTRL_R1SEB;
1412 else
1413 s->sctrl &= ~SCTRL_R1SEB;
1414 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1415 spin_unlock_irqrestore(&s->lock, flags);
1416 }
1417 if (file->f_mode & FMODE_WRITE) {
1418 stop_dac2(s);
1419 s->dma_dac2.ready = 0;
1420 spin_lock_irqsave(&s->lock, flags);
1421 if (val == AFMT_S16_LE)
1422 s->sctrl |= SCTRL_P2SEB;
1423 else
1424 s->sctrl &= ~SCTRL_P2SEB;
1425 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1426 spin_unlock_irqrestore(&s->lock, flags);
1427 }
1428 }
1429 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
1430 AFMT_S16_LE : AFMT_U8, (int *)arg);
1431
1432 case SNDCTL_DSP_POST:
1433 return 0;
1434
1435 case SNDCTL_DSP_GETTRIGGER:
1436 val = 0;
1437 if (file->f_mode & FMODE_READ && s->ctrl & CTRL_ADC_EN)
1438 val |= PCM_ENABLE_INPUT;
1439 if (file->f_mode & FMODE_WRITE && s->ctrl & CTRL_DAC2_EN)
1440 val |= PCM_ENABLE_OUTPUT;
1441 return put_user(val, (int *)arg);
1442
1443 case SNDCTL_DSP_SETTRIGGER:
1444 get_user_ret(val, (int *)arg, -EFAULT);
1445 if (file->f_mode & FMODE_READ) {
1446 if (val & PCM_ENABLE_INPUT) {
1447 if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
1448 return ret;
1449 start_adc(s);
1450 } else
1451 stop_adc(s);
1452 }
1453 if (file->f_mode & FMODE_WRITE) {
1454 if (val & PCM_ENABLE_OUTPUT) {
1455 if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
1456 return ret;
1457 start_dac2(s);
1458 } else
1459 stop_dac2(s);
1460 }
1461 return 0;
1462
1463 case SNDCTL_DSP_GETOSPACE:
1464 if (!(file->f_mode & FMODE_WRITE))
1465 return -EINVAL;
1466 if (!(s->ctrl & CTRL_DAC2_EN) && (val = prog_dmabuf_dac2(s)) != 0)
1467 return val;
1468 spin_lock_irqsave(&s->lock, flags);
1469 es1370_update_ptr(s);
1470 abinfo.fragsize = s->dma_dac2.fragsize;
1471 abinfo.bytes = s->dma_dac2.dmasize - s->dma_dac2.count;
1472 abinfo.fragstotal = s->dma_dac2.numfrag;
1473 abinfo.fragments = abinfo.bytes >> s->dma_dac2.fragshift;
1474 spin_unlock_irqrestore(&s->lock, flags);
1475 return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1476
1477 case SNDCTL_DSP_GETISPACE:
1478 if (!(file->f_mode & FMODE_READ))
1479 return -EINVAL;
1480 if (!(s->ctrl & CTRL_ADC_EN) && (val = prog_dmabuf_adc(s)) != 0)
1481 return val;
1482 spin_lock_irqsave(&s->lock, flags);
1483 es1370_update_ptr(s);
1484 abinfo.fragsize = s->dma_adc.fragsize;
1485 abinfo.bytes = s->dma_adc.count;
1486 abinfo.fragstotal = s->dma_adc.numfrag;
1487 abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
1488 spin_unlock_irqrestore(&s->lock, flags);
1489 return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1490
1491 case SNDCTL_DSP_NONBLOCK:
1492 file->f_flags |= O_NONBLOCK;
1493 return 0;
1494
1495 case SNDCTL_DSP_GETODELAY:
1496 if (!(file->f_mode & FMODE_WRITE))
1497 return -EINVAL;
1498 spin_lock_irqsave(&s->lock, flags);
1499 es1370_update_ptr(s);
1500 val = s->dma_dac2.count;
1501 spin_unlock_irqrestore(&s->lock, flags);
1502 return put_user(val, (int *)arg);
1503
1504 case SNDCTL_DSP_GETIPTR:
1505 if (!(file->f_mode & FMODE_READ))
1506 return -EINVAL;
1507 spin_lock_irqsave(&s->lock, flags);
1508 es1370_update_ptr(s);
1509 cinfo.bytes = s->dma_adc.total_bytes;
1510 cinfo.blocks = s->dma_adc.count >> s->dma_adc.fragshift;
1511 cinfo.ptr = s->dma_adc.hwptr;
1512 if (s->dma_adc.mapped)
1513 s->dma_adc.count &= s->dma_adc.fragsize-1;
1514 spin_unlock_irqrestore(&s->lock, flags);
1515 return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
1516
1517 case SNDCTL_DSP_GETOPTR:
1518 if (!(file->f_mode & FMODE_WRITE))
1519 return -EINVAL;
1520 spin_lock_irqsave(&s->lock, flags);
1521 es1370_update_ptr(s);
1522 cinfo.bytes = s->dma_dac2.total_bytes;
1523 cinfo.blocks = s->dma_dac2.count >> s->dma_dac2.fragshift;
1524 cinfo.ptr = s->dma_dac2.hwptr;
1525 if (s->dma_dac2.mapped)
1526 s->dma_dac2.count &= s->dma_dac2.fragsize-1;
1527 spin_unlock_irqrestore(&s->lock, flags);
1528 return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
1529
1530 case SNDCTL_DSP_GETBLKSIZE:
1531 if (file->f_mode & FMODE_WRITE) {
1532 if ((val = prog_dmabuf_dac2(s)))
1533 return val;
1534 return put_user(s->dma_dac2.fragsize, (int *)arg);
1535 }
1536 if ((val = prog_dmabuf_adc(s)))
1537 return val;
1538 return put_user(s->dma_adc.fragsize, (int *)arg);
1539
1540 case SNDCTL_DSP_SETFRAGMENT:
1541 get_user_ret(val, (int *)arg, -EFAULT);
1542 if (file->f_mode & FMODE_READ) {
1543 s->dma_adc.ossfragshift = val & 0xffff;
1544 s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
1545 if (s->dma_adc.ossfragshift < 4)
1546 s->dma_adc.ossfragshift = 4;
1547 if (s->dma_adc.ossfragshift > 15)
1548 s->dma_adc.ossfragshift = 15;
1549 if (s->dma_adc.ossmaxfrags < 4)
1550 s->dma_adc.ossmaxfrags = 4;
1551 }
1552 if (file->f_mode & FMODE_WRITE) {
1553 s->dma_dac2.ossfragshift = val & 0xffff;
1554 s->dma_dac2.ossmaxfrags = (val >> 16) & 0xffff;
1555 if (s->dma_dac2.ossfragshift < 4)
1556 s->dma_dac2.ossfragshift = 4;
1557 if (s->dma_dac2.ossfragshift > 15)
1558 s->dma_dac2.ossfragshift = 15;
1559 if (s->dma_dac2.ossmaxfrags < 4)
1560 s->dma_dac2.ossmaxfrags = 4;
1561 }
1562 return 0;
1563
1564 case SNDCTL_DSP_SUBDIVIDE:
1565 if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
1566 (file->f_mode & FMODE_WRITE && s->dma_dac2.subdivision))
1567 return -EINVAL;
1568 get_user_ret(val, (int *)arg, -EFAULT);
1569 if (val != 1 && val != 2 && val != 4)
1570 return -EINVAL;
1571 if (file->f_mode & FMODE_READ)
1572 s->dma_adc.subdivision = val;
1573 if (file->f_mode & FMODE_WRITE)
1574 s->dma_dac2.subdivision = val;
1575 return 0;
1576
1577 case SOUND_PCM_READ_RATE:
1578 return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), (int *)arg);
1579
1580 case SOUND_PCM_READ_CHANNELS:
1581 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ?
1582 2 : 1, (int *)arg);
1583
1584 case SOUND_PCM_READ_BITS:
1585 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
1586 16 : 8, (int *)arg);
1587
1588 case SOUND_PCM_WRITE_FILTER:
1589 case SNDCTL_DSP_SETSYNCRO:
1590 case SOUND_PCM_READ_FILTER:
1591 return -EINVAL;
1592
1593 }
1594 return mixer_ioctl(s, cmd, arg);
1595 }
1596
1597 static int es1370_open(struct inode *inode, struct file *file)
1598 {
1599 int minor = MINOR(inode->i_rdev);
1600 struct es1370_state *s = devs;
1601 unsigned long flags;
1602
1603 while (s && ((s->dev_audio ^ minor) & ~0xf))
1604 s = s->next;
1605 if (!s)
1606 return -ENODEV;
1607 VALIDATE_STATE(s);
1608 file->private_data = s;
1609 /* wait for device to become free */
1610 down(&s->open_sem);
1611 while (s->open_mode & file->f_mode) {
1612 if (file->f_flags & O_NONBLOCK) {
1613 up(&s->open_sem);
1614 return -EBUSY;
1615 }
1616 up(&s->open_sem);
1617 interruptible_sleep_on(&s->open_wait);
1618 if (signal_pending(current))
1619 return -ERESTARTSYS;
1620 down(&s->open_sem);
1621 }
1622 spin_lock_irqsave(&s->lock, flags);
1623 if (!(s->open_mode & (FMODE_READ|FMODE_WRITE)))
1624 s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV);
1625 if (file->f_mode & FMODE_READ) {
1626 s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
1627 s->sctrl &= ~SCTRL_R1FMT;
1628 if ((minor & 0xf) == SND_DEV_DSP16)
1629 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_R1FMT;
1630 else
1631 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_R1FMT;
1632 }
1633 if (file->f_mode & FMODE_WRITE) {
1634 s->dma_dac2.ossfragshift = s->dma_dac2.ossmaxfrags = s->dma_dac2.subdivision = 0;
1635 s->sctrl &= ~SCTRL_P2FMT;
1636 if ((minor & 0xf) == SND_DEV_DSP16)
1637 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P2FMT;
1638 else
1639 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P2FMT;
1640 }
1641 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1642 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1643 spin_unlock_irqrestore(&s->lock, flags);
1644 s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
1645 up(&s->open_sem);
1646 MOD_INC_USE_COUNT;
1647 return 0;
1648 }
1649
1650 static int es1370_release(struct inode *inode, struct file *file)
1651 {
1652 struct es1370_state *s = (struct es1370_state *)file->private_data;
1653
1654 VALIDATE_STATE(s);
1655 if (file->f_mode & FMODE_WRITE)
1656 drain_dac2(s, file->f_flags & O_NONBLOCK);
1657 down(&s->open_sem);
1658 if (file->f_mode & FMODE_WRITE) {
1659 stop_dac2(s);
1660 synchronize_irq();
1661 dealloc_dmabuf(&s->dma_dac2);
1662 }
1663 if (file->f_mode & FMODE_READ) {
1664 stop_adc(s);
1665 dealloc_dmabuf(&s->dma_adc);
1666 }
1667 s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
1668 up(&s->open_sem);
1669 wake_up(&s->open_wait);
1670 MOD_DEC_USE_COUNT;
1671 return 0;
1672 }
1673
1674 static /*const*/ struct file_operations es1370_audio_fops = {
1675 &es1370_llseek,
1676 &es1370_read,
1677 &es1370_write,
1678 NULL, /* readdir */
1679 &es1370_poll,
1680 &es1370_ioctl,
1681 &es1370_mmap,
1682 &es1370_open,
1683 NULL, /* flush */
1684 &es1370_release,
1685 NULL, /* fsync */
1686 NULL, /* fasync */
1687 NULL, /* check_media_change */
1688 NULL, /* revalidate */
1689 NULL, /* lock */
1690 };
1691
1692 /* --------------------------------------------------------------------- */
1693
1694 static ssize_t es1370_write_dac(struct file *file, const char *buffer, size_t count, loff_t *ppos)
1695 {
1696 struct es1370_state *s = (struct es1370_state *)file->private_data;
1697 ssize_t ret = 0;
1698 unsigned long flags;
1699 unsigned swptr;
1700 int cnt;
1701
1702 VALIDATE_STATE(s);
1703 if (ppos != &file->f_pos)
1704 return -ESPIPE;
1705 if (s->dma_dac1.mapped)
1706 return -ENXIO;
1707 if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
1708 return ret;
1709 if (!access_ok(VERIFY_READ, buffer, count))
1710 return -EFAULT;
1711 while (count > 0) {
1712 spin_lock_irqsave(&s->lock, flags);
1713 if (s->dma_dac1.count < 0) {
1714 s->dma_dac1.count = 0;
1715 s->dma_dac1.swptr = s->dma_dac1.hwptr;
1716 }
1717 swptr = s->dma_dac1.swptr;
1718 cnt = s->dma_dac1.dmasize-swptr;
1719 if (s->dma_dac1.count + cnt > s->dma_dac1.dmasize)
1720 cnt = s->dma_dac1.dmasize - s->dma_dac1.count;
1721 spin_unlock_irqrestore(&s->lock, flags);
1722 if (cnt > count)
1723 cnt = count;
1724 if (cnt <= 0) {
1725 start_dac1(s);
1726 if (file->f_flags & O_NONBLOCK)
1727 return ret ? ret : -EAGAIN;
1728 interruptible_sleep_on(&s->dma_dac1.wait);
1729 if (signal_pending(current))
1730 return ret ? ret : -ERESTARTSYS;
1731 continue;
1732 }
1733 if (copy_from_user(s->dma_dac1.rawbuf + swptr, buffer, cnt))
1734 return ret ? ret : -EFAULT;
1735 swptr = (swptr + cnt) % s->dma_dac1.dmasize;
1736 spin_lock_irqsave(&s->lock, flags);
1737 s->dma_dac1.swptr = swptr;
1738 s->dma_dac1.count += cnt;
1739 s->dma_dac1.endcleared = 0;
1740 spin_unlock_irqrestore(&s->lock, flags);
1741 count -= cnt;
1742 buffer += cnt;
1743 ret += cnt;
1744 start_dac1(s);
1745 }
1746 return ret;
1747 }
1748
1749 static unsigned int es1370_poll_dac(struct file *file, struct poll_table_struct *wait)
1750 {
1751 struct es1370_state *s = (struct es1370_state *)file->private_data;
1752 unsigned long flags;
1753 unsigned int mask = 0;
1754
1755 VALIDATE_STATE(s);
1756 poll_wait(file, &s->dma_dac1.wait, wait);
1757 spin_lock_irqsave(&s->lock, flags);
1758 es1370_update_ptr(s);
1759 if (s->dma_dac1.mapped) {
1760 if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
1761 mask |= POLLOUT | POLLWRNORM;
1762 } else {
1763 if ((signed)s->dma_dac1.dmasize >= s->dma_dac1.count + (signed)s->dma_dac1.fragsize)
1764 mask |= POLLOUT | POLLWRNORM;
1765 }
1766 spin_unlock_irqrestore(&s->lock, flags);
1767 return mask;
1768 }
1769
1770 static int es1370_mmap_dac(struct file *file, struct vm_area_struct *vma)
1771 {
1772 struct es1370_state *s = (struct es1370_state *)file->private_data;
1773 int ret;
1774 unsigned long size;
1775
1776 VALIDATE_STATE(s);
1777 if (!(vma->vm_flags & VM_WRITE))
1778 return -EINVAL;
1779 if ((ret = prog_dmabuf_dac1(s)) != 0)
1780 return ret;
1781 if (vma->vm_offset != 0)
1782 return -EINVAL;
1783 size = vma->vm_end - vma->vm_start;
1784 if (size > (PAGE_SIZE << s->dma_dac1.buforder))
1785 return -EINVAL;
1786 if (remap_page_range(vma->vm_start, virt_to_phys(s->dma_dac1.rawbuf), size, vma->vm_page_prot))
1787 return -EAGAIN;
1788 s->dma_dac1.mapped = 1;
1789 return 0;
1790 }
1791
1792 static int es1370_ioctl_dac(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1793 {
1794 struct es1370_state *s = (struct es1370_state *)file->private_data;
1795 unsigned long flags;
1796 audio_buf_info abinfo;
1797 count_info cinfo;
1798 unsigned ctrl;
1799 int val, ret;
1800
1801 VALIDATE_STATE(s);
1802 switch (cmd) {
1803 case OSS_GETVERSION:
1804 return put_user(SOUND_VERSION, (int *)arg);
1805
1806 case SNDCTL_DSP_SYNC:
1807 return drain_dac1(s, 0/*file->f_flags & O_NONBLOCK*/);
1808
1809 case SNDCTL_DSP_SETDUPLEX:
1810 return -EINVAL;
1811
1812 case SNDCTL_DSP_GETCAPS:
1813 return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg);
1814
1815 case SNDCTL_DSP_RESET:
1816 stop_dac1(s);
1817 synchronize_irq();
1818 s->dma_dac1.swptr = s->dma_dac1.hwptr = s->dma_dac1.count = s->dma_dac1.total_bytes = 0;
1819 return 0;
1820
1821 case SNDCTL_DSP_SPEED:
1822 get_user_ret(val, (int *)arg, -EFAULT);
1823 if (val >= 0) {
1824 stop_dac1(s);
1825 s->dma_dac1.ready = 0;
1826 for (ctrl = 0; ctrl <= 2; ctrl++)
1827 if (val < (dac1_samplerate[ctrl] + dac1_samplerate[ctrl+1]) / 2)
1828 break;
1829 spin_lock_irqsave(&s->lock, flags);
1830 s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (ctrl << CTRL_SH_WTSRSEL);
1831 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1832 spin_unlock_irqrestore(&s->lock, flags);
1833 }
1834 return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], (int *)arg);
1835
1836 case SNDCTL_DSP_STEREO:
1837 get_user_ret(val, (int *)arg, -EFAULT);
1838 stop_dac1(s);
1839 s->dma_dac1.ready = 0;
1840 spin_lock_irqsave(&s->lock, flags);
1841 if (val)
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 return 0;
1848
1849 case SNDCTL_DSP_CHANNELS:
1850 get_user_ret(val, (int *)arg, -EFAULT);
1851 if (val != 0) {
1852 if (s->dma_dac1.mapped)
1853 return -EINVAL;
1854 stop_dac1(s);
1855 s->dma_dac1.ready = 0;
1856 spin_lock_irqsave(&s->lock, flags);
1857 if (val >= 2)
1858 s->sctrl |= SCTRL_P1SMB;
1859 else
1860 s->sctrl &= ~SCTRL_P1SMB;
1861 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1862 spin_unlock_irqrestore(&s->lock, flags);
1863 }
1864 return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, (int *)arg);
1865
1866 case SNDCTL_DSP_GETFMTS: /* Returns a mask */
1867 return put_user(AFMT_S16_LE|AFMT_U8, (int *)arg);
1868
1869 case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
1870 get_user_ret(val, (int *)arg, -EFAULT);
1871 if (val != AFMT_QUERY) {
1872 stop_dac1(s);
1873 s->dma_dac1.ready = 0;
1874 spin_lock_irqsave(&s->lock, flags);
1875 if (val == AFMT_S16_LE)
1876 s->sctrl |= SCTRL_P1SEB;
1877 else
1878 s->sctrl &= ~SCTRL_P1SEB;
1879 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1880 spin_unlock_irqrestore(&s->lock, flags);
1881 }
1882 return put_user((s->sctrl & SCTRL_P1SEB) ? AFMT_S16_LE : AFMT_U8, (int *)arg);
1883
1884 case SNDCTL_DSP_POST:
1885 return 0;
1886
1887 case SNDCTL_DSP_GETTRIGGER:
1888 return put_user((s->ctrl & CTRL_DAC1_EN) ? PCM_ENABLE_OUTPUT : 0, (int *)arg);
1889
1890 case SNDCTL_DSP_SETTRIGGER:
1891 get_user_ret(val, (int *)arg, -EFAULT);
1892 if (val & PCM_ENABLE_OUTPUT) {
1893 if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
1894 return ret;
1895 start_dac1(s);
1896 } else
1897 stop_dac1(s);
1898 return 0;
1899
1900 case SNDCTL_DSP_GETOSPACE:
1901 if (!(s->ctrl & CTRL_DAC2_EN) && (val = prog_dmabuf_dac1(s)) != 0)
1902 return val;
1903 spin_lock_irqsave(&s->lock, flags);
1904 es1370_update_ptr(s);
1905 abinfo.fragsize = s->dma_dac1.fragsize;
1906 abinfo.bytes = s->dma_dac1.dmasize - s->dma_dac1.count;
1907 abinfo.fragstotal = s->dma_dac1.numfrag;
1908 abinfo.fragments = abinfo.bytes >> s->dma_dac1.fragshift;
1909 spin_unlock_irqrestore(&s->lock, flags);
1910 return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1911
1912 case SNDCTL_DSP_NONBLOCK:
1913 file->f_flags |= O_NONBLOCK;
1914 return 0;
1915
1916 case SNDCTL_DSP_GETODELAY:
1917 spin_lock_irqsave(&s->lock, flags);
1918 es1370_update_ptr(s);
1919 val = s->dma_dac1.count;
1920 spin_unlock_irqrestore(&s->lock, flags);
1921 return put_user(val, (int *)arg);
1922
1923 case SNDCTL_DSP_GETOPTR:
1924 if (!(file->f_mode & FMODE_WRITE))
1925 return -EINVAL;
1926 spin_lock_irqsave(&s->lock, flags);
1927 es1370_update_ptr(s);
1928 cinfo.bytes = s->dma_dac1.total_bytes;
1929 cinfo.blocks = s->dma_dac1.count >> s->dma_dac1.fragshift;
1930 cinfo.ptr = s->dma_dac1.hwptr;
1931 if (s->dma_dac1.mapped)
1932 s->dma_dac1.count &= s->dma_dac1.fragsize-1;
1933 spin_unlock_irqrestore(&s->lock, flags);
1934 return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
1935
1936 case SNDCTL_DSP_GETBLKSIZE:
1937 if ((val = prog_dmabuf_dac1(s)))
1938 return val;
1939 return put_user(s->dma_dac1.fragsize, (int *)arg);
1940
1941 case SNDCTL_DSP_SETFRAGMENT:
1942 get_user_ret(val, (int *)arg, -EFAULT);
1943 s->dma_dac1.ossfragshift = val & 0xffff;
1944 s->dma_dac1.ossmaxfrags = (val >> 16) & 0xffff;
1945 if (s->dma_dac1.ossfragshift < 4)
1946 s->dma_dac1.ossfragshift = 4;
1947 if (s->dma_dac1.ossfragshift > 15)
1948 s->dma_dac1.ossfragshift = 15;
1949 if (s->dma_dac1.ossmaxfrags < 4)
1950 s->dma_dac1.ossmaxfrags = 4;
1951 return 0;
1952
1953 case SNDCTL_DSP_SUBDIVIDE:
1954 if (s->dma_dac1.subdivision)
1955 return -EINVAL;
1956 get_user_ret(val, (int *)arg, -EFAULT);
1957 if (val != 1 && val != 2 && val != 4)
1958 return -EINVAL;
1959 s->dma_dac1.subdivision = val;
1960 return 0;
1961
1962 case SOUND_PCM_READ_RATE:
1963 return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], (int *)arg);
1964
1965 case SOUND_PCM_READ_CHANNELS:
1966 return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, (int *)arg);
1967
1968 case SOUND_PCM_READ_BITS:
1969 return put_user((s->sctrl & SCTRL_P1SEB) ? 16 : 8, (int *)arg);
1970
1971 case SOUND_PCM_WRITE_FILTER:
1972 case SNDCTL_DSP_SETSYNCRO:
1973 case SOUND_PCM_READ_FILTER:
1974 return -EINVAL;
1975
1976 }
1977 return mixer_ioctl(s, cmd, arg);
1978 }
1979
1980 static int es1370_open_dac(struct inode *inode, struct file *file)
1981 {
1982 int minor = MINOR(inode->i_rdev);
1983 struct es1370_state *s = devs;
1984 unsigned long flags;
1985
1986 while (s && ((s->dev_dac ^ minor) & ~0xf))
1987 s = s->next;
1988 if (!s)
1989 return -ENODEV;
1990 VALIDATE_STATE(s);
1991 /* we allow opening with O_RDWR, most programs do it although they will only write */
1992 #if 0
1993 if (file->f_mode & FMODE_READ)
1994 return -EPERM;
1995 #endif
1996 if (!(file->f_mode & FMODE_WRITE))
1997 return -EINVAL;
1998 file->private_data = s;
1999 /* wait for device to become free */
2000 down(&s->open_sem);
2001 while (s->open_mode & FMODE_DAC) {
2002 if (file->f_flags & O_NONBLOCK) {
2003 up(&s->open_sem);
2004 return -EBUSY;
2005 }
2006 up(&s->open_sem);
2007 interruptible_sleep_on(&s->open_wait);
2008 if (signal_pending(current))
2009 return -ERESTARTSYS;
2010 down(&s->open_sem);
2011 }
2012 s->dma_dac1.ossfragshift = s->dma_dac1.ossmaxfrags = s->dma_dac1.subdivision = 0;
2013 spin_lock_irqsave(&s->lock, flags);
2014 s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (1 << CTRL_SH_WTSRSEL);
2015 s->sctrl &= ~SCTRL_P1FMT;
2016 if ((minor & 0xf) == SND_DEV_DSP16)
2017 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P1FMT;
2018 else
2019 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P1FMT;
2020 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2021 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2022 spin_unlock_irqrestore(&s->lock, flags);
2023 s->open_mode |= FMODE_DAC;
2024 up(&s->open_sem);
2025 MOD_INC_USE_COUNT;
2026 return 0;
2027 }
2028
2029 static int es1370_release_dac(struct inode *inode, struct file *file)
2030 {
2031 struct es1370_state *s = (struct es1370_state *)file->private_data;
2032
2033 VALIDATE_STATE(s);
2034 drain_dac1(s, file->f_flags & O_NONBLOCK);
2035 down(&s->open_sem);
2036 stop_dac1(s);
2037 dealloc_dmabuf(&s->dma_dac1);
2038 s->open_mode &= ~FMODE_DAC;
2039 up(&s->open_sem);
2040 wake_up(&s->open_wait);
2041 MOD_DEC_USE_COUNT;
2042 return 0;
2043 }
2044
2045 static /*const*/ struct file_operations es1370_dac_fops = {
2046 &es1370_llseek,
2047 NULL, /* read */
2048 &es1370_write_dac,
2049 NULL, /* readdir */
2050 &es1370_poll_dac,
2051 &es1370_ioctl_dac,
2052 &es1370_mmap_dac,
2053 &es1370_open_dac,
2054 NULL, /* flush */
2055 &es1370_release_dac,
2056 NULL, /* fsync */
2057 NULL, /* fasync */
2058 NULL, /* check_media_change */
2059 NULL, /* revalidate */
2060 NULL, /* lock */
2061 };
2062
2063 /* --------------------------------------------------------------------- */
2064
2065 static ssize_t es1370_midi_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
2066 {
2067 struct es1370_state *s = (struct es1370_state *)file->private_data;
2068 ssize_t ret;
2069 unsigned long flags;
2070 unsigned ptr;
2071 int cnt;
2072
2073 VALIDATE_STATE(s);
2074 if (ppos != &file->f_pos)
2075 return -ESPIPE;
2076 if (!access_ok(VERIFY_WRITE, buffer, count))
2077 return -EFAULT;
2078 ret = 0;
2079 while (count > 0) {
2080 spin_lock_irqsave(&s->lock, flags);
2081 ptr = s->midi.ird;
2082 cnt = MIDIINBUF - ptr;
2083 if (s->midi.icnt < cnt)
2084 cnt = s->midi.icnt;
2085 spin_unlock_irqrestore(&s->lock, flags);
2086 if (cnt > count)
2087 cnt = count;
2088 if (cnt <= 0) {
2089 if (file->f_flags & O_NONBLOCK)
2090 return ret ? ret : -EAGAIN;
2091 interruptible_sleep_on(&s->midi.iwait);
2092 if (signal_pending(current))
2093 return ret ? ret : -ERESTARTSYS;
2094 continue;
2095 }
2096 if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt))
2097 return ret ? ret : -EFAULT;
2098 ptr = (ptr + cnt) % MIDIINBUF;
2099 spin_lock_irqsave(&s->lock, flags);
2100 s->midi.ird = ptr;
2101 s->midi.icnt -= cnt;
2102 spin_unlock_irqrestore(&s->lock, flags);
2103 count -= cnt;
2104 buffer += cnt;
2105 ret += cnt;
2106 }
2107 return ret;
2108 }
2109
2110 static ssize_t es1370_midi_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
2111 {
2112 struct es1370_state *s = (struct es1370_state *)file->private_data;
2113 ssize_t ret;
2114 unsigned long flags;
2115 unsigned ptr;
2116 int cnt;
2117
2118 VALIDATE_STATE(s);
2119 if (ppos != &file->f_pos)
2120 return -ESPIPE;
2121 if (!access_ok(VERIFY_READ, buffer, count))
2122 return -EFAULT;
2123 ret = 0;
2124 while (count > 0) {
2125 spin_lock_irqsave(&s->lock, flags);
2126 ptr = s->midi.owr;
2127 cnt = MIDIOUTBUF - ptr;
2128 if (s->midi.ocnt + cnt > MIDIOUTBUF)
2129 cnt = MIDIOUTBUF - s->midi.ocnt;
2130 if (cnt <= 0)
2131 es1370_handle_midi(s);
2132 spin_unlock_irqrestore(&s->lock, flags);
2133 if (cnt > count)
2134 cnt = count;
2135 if (cnt <= 0) {
2136 if (file->f_flags & O_NONBLOCK)
2137 return ret ? ret : -EAGAIN;
2138 interruptible_sleep_on(&s->midi.owait);
2139 if (signal_pending(current))
2140 return ret ? ret : -ERESTARTSYS;
2141 continue;
2142 }
2143 if (copy_from_user(s->midi.obuf + ptr, buffer, cnt))
2144 return ret ? ret : -EFAULT;
2145 ptr = (ptr + cnt) % MIDIOUTBUF;
2146 spin_lock_irqsave(&s->lock, flags);
2147 s->midi.owr = ptr;
2148 s->midi.ocnt += cnt;
2149 spin_unlock_irqrestore(&s->lock, flags);
2150 count -= cnt;
2151 buffer += cnt;
2152 ret += cnt;
2153 spin_lock_irqsave(&s->lock, flags);
2154 es1370_handle_midi(s);
2155 spin_unlock_irqrestore(&s->lock, flags);
2156 }
2157 return ret;
2158 }
2159
2160 static unsigned int es1370_midi_poll(struct file *file, struct poll_table_struct *wait)
2161 {
2162 struct es1370_state *s = (struct es1370_state *)file->private_data;
2163 unsigned long flags;
2164 unsigned int mask = 0;
2165
2166 VALIDATE_STATE(s);
2167 if (file->f_mode & FMODE_WRITE)
2168 poll_wait(file, &s->midi.owait, wait);
2169 if (file->f_mode & FMODE_READ)
2170 poll_wait(file, &s->midi.iwait, wait);
2171 spin_lock_irqsave(&s->lock, flags);
2172 if (file->f_mode & FMODE_READ) {
2173 if (s->midi.icnt > 0)
2174 mask |= POLLIN | POLLRDNORM;
2175 }
2176 if (file->f_mode & FMODE_WRITE) {
2177 if (s->midi.ocnt < MIDIOUTBUF)
2178 mask |= POLLOUT | POLLWRNORM;
2179 }
2180 spin_unlock_irqrestore(&s->lock, flags);
2181 return mask;
2182 }
2183
2184 static int es1370_midi_open(struct inode *inode, struct file *file)
2185 {
2186 int minor = MINOR(inode->i_rdev);
2187 struct es1370_state *s = devs;
2188 unsigned long flags;
2189
2190 while (s && s->dev_midi != minor)
2191 s = s->next;
2192 if (!s)
2193 return -ENODEV;
2194 VALIDATE_STATE(s);
2195 file->private_data = s;
2196 /* wait for device to become free */
2197 down(&s->open_sem);
2198 while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
2199 if (file->f_flags & O_NONBLOCK) {
2200 up(&s->open_sem);
2201 return -EBUSY;
2202 }
2203 up(&s->open_sem);
2204 interruptible_sleep_on(&s->open_wait);
2205 if (signal_pending(current))
2206 return -ERESTARTSYS;
2207 down(&s->open_sem);
2208 }
2209 spin_lock_irqsave(&s->lock, flags);
2210 if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2211 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2212 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2213 outb(UCTRL_CNTRL_SWR, s->io+ES1370_REG_UART_CONTROL);
2214 outb(0, s->io+ES1370_REG_UART_CONTROL);
2215 outb(0, s->io+ES1370_REG_UART_TEST);
2216 }
2217 if (file->f_mode & FMODE_READ) {
2218 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2219 }
2220 if (file->f_mode & FMODE_WRITE) {
2221 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2222 }
2223 s->ctrl |= CTRL_UART_EN;
2224 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2225 es1370_handle_midi(s);
2226 spin_unlock_irqrestore(&s->lock, flags);
2227 s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
2228 up(&s->open_sem);
2229 MOD_INC_USE_COUNT;
2230 return 0;
2231 }
2232
2233 static int es1370_midi_release(struct inode *inode, struct file *file)
2234 {
2235 struct es1370_state *s = (struct es1370_state *)file->private_data;
2236 DECLARE_WAITQUEUE(wait, current);
2237 unsigned long flags;
2238 unsigned count, tmo;
2239
2240 VALIDATE_STATE(s);
2241
2242 if (file->f_mode & FMODE_WRITE) {
2243 current->state = TASK_INTERRUPTIBLE;
2244 add_wait_queue(&s->midi.owait, &wait);
2245 for (;;) {
2246 spin_lock_irqsave(&s->lock, flags);
2247 count = s->midi.ocnt;
2248 spin_unlock_irqrestore(&s->lock, flags);
2249 if (count <= 0)
2250 break;
2251 if (signal_pending(current))
2252 break;
2253 if (file->f_flags & O_NONBLOCK) {
2254 remove_wait_queue(&s->midi.owait, &wait);
2255 current->state = TASK_RUNNING;
2256 return -EBUSY;
2257 }
2258 tmo = (count * HZ) / 3100;
2259 if (!schedule_timeout(tmo ? : 1) && tmo)
2260 DBG(printk(KERN_DEBUG "es1370: midi timed out??\n");)
2261 }
2262 remove_wait_queue(&s->midi.owait, &wait);
2263 current->state = TASK_RUNNING;
2264 }
2265 down(&s->open_sem);
2266 s->open_mode &= (~(file->f_mode << FMODE_MIDI_SHIFT)) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE);
2267 spin_lock_irqsave(&s->lock, flags);
2268 if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2269 s->ctrl &= ~CTRL_UART_EN;
2270 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2271 }
2272 spin_unlock_irqrestore(&s->lock, flags);
2273 up(&s->open_sem);
2274 wake_up(&s->open_wait);
2275 MOD_DEC_USE_COUNT;
2276 return 0;
2277 }
2278
2279 static /*const*/ struct file_operations es1370_midi_fops = {
2280 &es1370_llseek,
2281 &es1370_midi_read,
2282 &es1370_midi_write,
2283 NULL, /* readdir */
2284 &es1370_midi_poll,
2285 NULL, /* ioctl */
2286 NULL, /* mmap */
2287 &es1370_midi_open,
2288 NULL, /* flush */
2289 &es1370_midi_release,
2290 NULL, /* fsync */
2291 NULL, /* fasync */
2292 NULL, /* check_media_change */
2293 NULL, /* revalidate */
2294 NULL, /* lock */
2295 };
2296
2297 /* --------------------------------------------------------------------- */
2298
2299 /* maximum number of devices */
2300 #define NR_DEVICE 5
2301
2302 static int joystick[NR_DEVICE] = { 0, };
2303 static int lineout[NR_DEVICE] = { 0, };
2304 static int micbias[NR_DEVICE] = { 0, };
2305
2306 MODULE_PARM(joystick, "1-" __MODULE_STRING(NR_DEVICE) "i");
2307 MODULE_PARM_DESC(joystick, "if 1 enables joystick interface (still need separate driver)");
2308 MODULE_PARM(lineout, "1-" __MODULE_STRING(NR_DEVICE) "i");
2309 MODULE_PARM_DESC(lineout, "if 1 the LINE input is converted to LINE out");
2310 MODULE_PARM(micbias, "1-" __MODULE_STRING(NR_DEVICE) "i");
2311 MODULE_PARM_DESC(micbias, "sets the +5V bias for an electret microphone");
2312
2313 MODULE_AUTHOR("Thomas M. Sailer, sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu");
2314 MODULE_DESCRIPTION("ES1370 AudioPCI Driver");
2315
2316 /* --------------------------------------------------------------------- */
2317
2318 static struct initvol {
2319 int mixch;
2320 int vol;
2321 } initvol[] __initdata = {
2322 { SOUND_MIXER_WRITE_VOLUME, 0x4040 },
2323 { SOUND_MIXER_WRITE_PCM, 0x4040 },
2324 { SOUND_MIXER_WRITE_SYNTH, 0x4040 },
2325 { SOUND_MIXER_WRITE_CD, 0x4040 },
2326 { SOUND_MIXER_WRITE_LINE, 0x4040 },
2327 { SOUND_MIXER_WRITE_LINE1, 0x4040 },
2328 { SOUND_MIXER_WRITE_LINE2, 0x4040 },
2329 { SOUND_MIXER_WRITE_LINE3, 0x4040 },
2330 { SOUND_MIXER_WRITE_MIC, 0x4040 },
2331 { SOUND_MIXER_WRITE_OGAIN, 0x4040 }
2332 };
2333
2334 static int __init init_es1370(void)
2335 {
2336 struct es1370_state *s;
2337 struct pci_dev *pcidev = NULL;
2338 mm_segment_t fs;
2339 int i, val, index = 0;
2340
2341 if (!pci_present()) /* No PCI bus in this machine! */
2342 return -ENODEV;
2343 printk(KERN_INFO "es1370: version v0.27 time " __TIME__ " " __DATE__ "\n");
2344 while (index < NR_DEVICE &&
2345 (pcidev = pci_find_device(PCI_VENDOR_ID_ENSONIQ, PCI_DEVICE_ID_ENSONIQ_ES1370, pcidev))) {
2346 if (pcidev->resource[0].flags == 0 ||
2347 (pcidev->resource[0].flags & PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_IO)
2348 continue;
2349 if (pcidev->irq == 0)
2350 continue;
2351 if (!(s = kmalloc(sizeof(struct es1370_state), GFP_KERNEL))) {
2352 printk(KERN_WARNING "es1370: out of memory\n");
2353 continue;
2354 }
2355 memset(s, 0, sizeof(struct es1370_state));
2356 init_waitqueue_head(&s->dma_adc.wait);
2357 init_waitqueue_head(&s->dma_dac1.wait);
2358 init_waitqueue_head(&s->dma_dac2.wait);
2359 init_waitqueue_head(&s->open_wait);
2360 init_waitqueue_head(&s->midi.iwait);
2361 init_waitqueue_head(&s->midi.owait);
2362 init_MUTEX(&s->open_sem);
2363 s->magic = ES1370_MAGIC;
2364 s->io = pcidev->resource[0].start;
2365 s->irq = pcidev->irq;
2366 if (check_region(s->io, ES1370_EXTENT)) {
2367 printk(KERN_ERR "es1370: io ports %#lx-%#lx in use\n", s->io, s->io+ES1370_EXTENT-1);
2368 goto err_region;
2369 }
2370 request_region(s->io, ES1370_EXTENT, "es1370");
2371 if (request_irq(s->irq, es1370_interrupt, SA_SHIRQ, "es1370", s)) {
2372 printk(KERN_ERR "es1370: irq %u in use\n", s->irq);
2373 goto err_irq;
2374 }
2375 /* initialize codec registers */
2376 /* note: setting CTRL_SERR_DIS is reported to break
2377 * mic bias setting (by Kim.Berts@fisub.mail.abb.com) */
2378 s->ctrl = CTRL_CDC_EN | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV) | (1 << CTRL_SH_WTSRSEL);
2379 if (joystick[index]) {
2380 if (check_region(0x200, JOY_EXTENT))
2381 printk(KERN_ERR "es1370: io port 0x200 in use\n");
2382 else
2383 s->ctrl |= CTRL_JYSTK_EN;
2384 }
2385 if (lineout[index])
2386 s->ctrl |= CTRL_XCTL0;
2387 if (micbias[index])
2388 s->ctrl |= CTRL_XCTL1;
2389 s->sctrl = 0;
2390 printk(KERN_INFO "es1370: found adapter at io %#lx irq %u\n"
2391 KERN_INFO "es1370: features: joystick %s, line %s, mic impedance %s\n",
2392 s->io, s->irq, (s->ctrl & CTRL_JYSTK_EN) ? "on" : "off",
2393 (s->ctrl & CTRL_XCTL0) ? "out" : "in",
2394 (s->ctrl & CTRL_XCTL1) ? "1" : "0");
2395 /* register devices */
2396 if ((s->dev_audio = register_sound_dsp(&es1370_audio_fops, -1)) < 0)
2397 goto err_dev1;
2398 if ((s->dev_mixer = register_sound_mixer(&es1370_mixer_fops, -1)) < 0)
2399 goto err_dev2;
2400 if ((s->dev_dac = register_sound_dsp(&es1370_dac_fops, -1)) < 0)
2401 goto err_dev3;
2402 if ((s->dev_midi = register_sound_midi(&es1370_midi_fops, -1)) < 0)
2403 goto err_dev4;
2404 /* initialize the chips */
2405 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2406 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2407 /* point phantom write channel to "bugbuf" */
2408 outl((ES1370_REG_PHANTOM_FRAMEADR >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
2409 outl(virt_to_bus(bugbuf), s->io+(ES1370_REG_PHANTOM_FRAMEADR & 0xff));
2410 outl(0, s->io+(ES1370_REG_PHANTOM_FRAMECNT & 0xff));
2411 pci_set_master(pcidev); /* enable bus mastering */
2412 wrcodec(s, 0x16, 3); /* no RST, PD */
2413 wrcodec(s, 0x17, 0); /* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off the LRCLK2 PLL; program DAC_SYNC=0!! */
2414 wrcodec(s, 0x18, 0); /* recording source is mixer */
2415 wrcodec(s, 0x19, s->mix.micpreamp = 1); /* turn on MIC preamp */
2416 s->mix.imix = 1;
2417 fs = get_fs();
2418 set_fs(KERNEL_DS);
2419 val = SOUND_MASK_LINE|SOUND_MASK_SYNTH|SOUND_MASK_CD;
2420 mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val);
2421 for (i = 0; i < sizeof(initvol)/sizeof(initvol[0]); i++) {
2422 val = initvol[i].vol;
2423 mixer_ioctl(s, initvol[i].mixch, (unsigned long)&val);
2424 }
2425 set_fs(fs);
2426 /* queue it for later freeing */
2427 s->next = devs;
2428 devs = s;
2429 index++;
2430 continue;
2431
2432 err_dev4:
2433 unregister_sound_dsp(s->dev_dac);
2434 err_dev3:
2435 unregister_sound_mixer(s->dev_mixer);
2436 err_dev2:
2437 unregister_sound_dsp(s->dev_audio);
2438 err_dev1:
2439 printk(KERN_ERR "es1370: cannot register misc device\n");
2440 free_irq(s->irq, s);
2441 err_irq:
2442 release_region(s->io, ES1370_EXTENT);
2443 err_region:
2444 kfree_s(s, sizeof(struct es1370_state));
2445 }
2446 if (!devs)
2447 return -ENODEV;
2448 return 0;
2449 }
2450
2451 static void __exit cleanup_es1370(void)
2452 {
2453 struct es1370_state *s;
2454
2455 while ((s = devs)) {
2456 devs = devs->next;
2457 outl(CTRL_SERR_DIS | (1 << CTRL_SH_WTSRSEL), s->io+ES1370_REG_CONTROL); /* switch everything off */
2458 outl(0, s->io+ES1370_REG_SERIAL_CONTROL); /* clear serial interrupts */
2459 synchronize_irq();
2460 free_irq(s->irq, s);
2461 release_region(s->io, ES1370_EXTENT);
2462 unregister_sound_dsp(s->dev_audio);
2463 unregister_sound_mixer(s->dev_mixer);
2464 unregister_sound_dsp(s->dev_dac);
2465 unregister_sound_midi(s->dev_midi);
2466 kfree_s(s, sizeof(struct es1370_state));
2467 }
2468 printk(KERN_INFO "es1370: unloading\n");
2469 }
2470
2471 module_init(init_es1370);
2472 module_exit(cleanup_es1370);
2473
2474 /* --------------------------------------------------------------------- */
2475
2476 #ifndef MODULE
2477
2478 /* format is: es1370=[joystick[,lineout[,micbias]]] */
2479
2480 static int __init es1370_setup(char *str)
2481 {
2482 static unsigned __initdata nr_dev = 0;
2483
2484 if (nr_dev >= NR_DEVICE)
2485 return 0;
2486
2487 ( (get_option(&str,&joystick[nr_dev]) == 2)
2488 && (get_option(&str,&lineout [nr_dev]) == 2)
2489 && get_option(&str,&micbias [nr_dev])
2490 );
2491
2492 nr_dev++;
2493 return 1;
2494 }
2495
2496 __setup("es1370=", es1370_setup);
2497
2498 #endif /* MODULE */
Copy of Dave Jones history.git as used by http://archive.org/details/git-history-of-linux