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Import 2.3.18pre1
[davej-history.git] / drivers / sound / es1370.c
blob08e819dced1e46615d28fdc85399140ff950a264
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 * 19.08.99 0.28 SOUND_MIXER_IMIX fixes, reported by Gianluca <gialluca@mail.tiscalinet.it>
111 * 31.08.99 0.29 add spin_lock_init
112 * __initlocaldata to fix gcc 2.7.x problems
113 * replaced current->state = x with set_current_state(x)
114 * 03.09.99 0.30 change read semantics for MIDI to match
115 * OSS more closely; remove possible wakeup race
116 *
117 * some important things missing in Ensoniq documentation:
118 *
119 * Experimental PCLKDIV results: play the same waveforms on both DAC1 and DAC2
120 * and vary PCLKDIV to obtain zero beat.
121 * 5512sps: 254
122 * 44100sps: 30
123 * seems to be fs = 1411200/(PCLKDIV+2)
124 *
125 * should find out when curr_sample_ct is cleared and
126 * where exactly the CCB fetches data
127 *
128 * The card uses a 22.5792 MHz crystal.
129 * The LINEIN jack may be converted to an AOUT jack by
130 * setting pin 47 (XCTL0) of the ES1370 to high.
131 * Pin 48 (XCTL1) of the ES1370 sets the +5V bias for an electretmic
132 *
133 *
134 */
135
136 /*****************************************************************************/
137
138 #include <linux/version.h>
139 #include <linux/module.h>
140 #include <linux/string.h>
141 #include <linux/ioport.h>
142 #include <linux/sched.h>
143 #include <linux/delay.h>
144 #include <linux/sound.h>
145 #include <linux/malloc.h>
146 #include <linux/soundcard.h>
147 #include <linux/pci.h>
148 #include <asm/io.h>
149 #include <asm/dma.h>
150 #include <linux/init.h>
151 #include <linux/poll.h>
152 #include <linux/spinlock.h>
153 #include <asm/uaccess.h>
154 #include <asm/hardirq.h>
155
156 /* --------------------------------------------------------------------- */
157
158 #undef OSS_DOCUMENTED_MIXER_SEMANTICS
159 #define DBG(x) {}
160 /*#define DBG(x) {x}*/
161
162 /* --------------------------------------------------------------------- */
163
164 #ifndef PCI_VENDOR_ID_ENSONIQ
165 #define PCI_VENDOR_ID_ENSONIQ 0x1274
166 #endif
167 #ifndef PCI_DEVICE_ID_ENSONIQ_ES1370
168 #define PCI_DEVICE_ID_ENSONIQ_ES1370 0x5000
169 #endif
170
171 #define ES1370_MAGIC ((PCI_VENDOR_ID_ENSONIQ<<16)|PCI_DEVICE_ID_ENSONIQ_ES1370)
172
173 #define ES1370_EXTENT 0x40
174 #define JOY_EXTENT 8
175
176 #define ES1370_REG_CONTROL 0x00
177 #define ES1370_REG_STATUS 0x04
178 #define ES1370_REG_UART_DATA 0x08
179 #define ES1370_REG_UART_STATUS 0x09
180 #define ES1370_REG_UART_CONTROL 0x09
181 #define ES1370_REG_UART_TEST 0x0a
182 #define ES1370_REG_MEMPAGE 0x0c
183 #define ES1370_REG_CODEC 0x10
184 #define ES1370_REG_SERIAL_CONTROL 0x20
185 #define ES1370_REG_DAC1_SCOUNT 0x24
186 #define ES1370_REG_DAC2_SCOUNT 0x28
187 #define ES1370_REG_ADC_SCOUNT 0x2c
188
189 #define ES1370_REG_DAC1_FRAMEADR 0xc30
190 #define ES1370_REG_DAC1_FRAMECNT 0xc34
191 #define ES1370_REG_DAC2_FRAMEADR 0xc38
192 #define ES1370_REG_DAC2_FRAMECNT 0xc3c
193 #define ES1370_REG_ADC_FRAMEADR 0xd30
194 #define ES1370_REG_ADC_FRAMECNT 0xd34
195 #define ES1370_REG_PHANTOM_FRAMEADR 0xd38
196 #define ES1370_REG_PHANTOM_FRAMECNT 0xd3c
197
198 #define ES1370_FMT_U8_MONO 0
199 #define ES1370_FMT_U8_STEREO 1
200 #define ES1370_FMT_S16_MONO 2
201 #define ES1370_FMT_S16_STEREO 3
202 #define ES1370_FMT_STEREO 1
203 #define ES1370_FMT_S16 2
204 #define ES1370_FMT_MASK 3
205
206 static const unsigned sample_size[] = { 1, 2, 2, 4 };
207 static const unsigned sample_shift[] = { 0, 1, 1, 2 };
208
209 static const unsigned dac1_samplerate[] = { 5512, 11025, 22050, 44100 };
210
211 #define DAC2_SRTODIV(x) (((1411200+(x)/2)/(x))-2)
212 #define DAC2_DIVTOSR(x) (1411200/((x)+2))
213
214 #define CTRL_ADC_STOP 0x80000000 /* 1 = ADC stopped */
215 #define CTRL_XCTL1 0x40000000 /* electret mic bias */
216 #define CTRL_OPEN 0x20000000 /* no function, can be read and written */
217 #define CTRL_PCLKDIV 0x1fff0000 /* ADC/DAC2 clock divider */
218 #define CTRL_SH_PCLKDIV 16
219 #define CTRL_MSFMTSEL 0x00008000 /* MPEG serial data fmt: 0 = Sony, 1 = I2S */
220 #define CTRL_M_SBB 0x00004000 /* DAC2 clock: 0 = PCLKDIV, 1 = MPEG */
221 #define CTRL_WTSRSEL 0x00003000 /* DAC1 clock freq: 0=5512, 1=11025, 2=22050, 3=44100 */
222 #define CTRL_SH_WTSRSEL 12
223 #define CTRL_DAC_SYNC 0x00000800 /* 1 = DAC2 runs off DAC1 clock */
224 #define CTRL_CCB_INTRM 0x00000400 /* 1 = CCB "voice" ints enabled */
225 #define CTRL_M_CB 0x00000200 /* recording source: 0 = ADC, 1 = MPEG */
226 #define CTRL_XCTL0 0x00000100 /* 0 = Line in, 1 = Line out */
227 #define CTRL_BREQ 0x00000080 /* 1 = test mode (internal mem test) */
228 #define CTRL_DAC1_EN 0x00000040 /* enable DAC1 */
229 #define CTRL_DAC2_EN 0x00000020 /* enable DAC2 */
230 #define CTRL_ADC_EN 0x00000010 /* enable ADC */
231 #define CTRL_UART_EN 0x00000008 /* enable MIDI uart */
232 #define CTRL_JYSTK_EN 0x00000004 /* enable Joystick port (presumably at address 0x200) */
233 #define CTRL_CDC_EN 0x00000002 /* enable serial (CODEC) interface */
234 #define CTRL_SERR_DIS 0x00000001 /* 1 = disable PCI SERR signal */
235
236 #define STAT_INTR 0x80000000 /* wired or of all interrupt bits */
237 #define STAT_CSTAT 0x00000400 /* 1 = codec busy or codec write in progress */
238 #define STAT_CBUSY 0x00000200 /* 1 = codec busy */
239 #define STAT_CWRIP 0x00000100 /* 1 = codec write in progress */
240 #define STAT_VC 0x00000060 /* CCB int source, 0=DAC1, 1=DAC2, 2=ADC, 3=undef */
241 #define STAT_SH_VC 5
242 #define STAT_MCCB 0x00000010 /* CCB int pending */
243 #define STAT_UART 0x00000008 /* UART int pending */
244 #define STAT_DAC1 0x00000004 /* DAC1 int pending */
245 #define STAT_DAC2 0x00000002 /* DAC2 int pending */
246 #define STAT_ADC 0x00000001 /* ADC int pending */
247
248 #define USTAT_RXINT 0x80 /* UART rx int pending */
249 #define USTAT_TXINT 0x04 /* UART tx int pending */
250 #define USTAT_TXRDY 0x02 /* UART tx ready */
251 #define USTAT_RXRDY 0x01 /* UART rx ready */
252
253 #define UCTRL_RXINTEN 0x80 /* 1 = enable RX ints */
254 #define UCTRL_TXINTEN 0x60 /* TX int enable field mask */
255 #define UCTRL_ENA_TXINT 0x20 /* enable TX int */
256 #define UCTRL_CNTRL 0x03 /* control field */
257 #define UCTRL_CNTRL_SWR 0x03 /* software reset command */
258
259 #define SCTRL_P2ENDINC 0x00380000 /* */
260 #define SCTRL_SH_P2ENDINC 19
261 #define SCTRL_P2STINC 0x00070000 /* */
262 #define SCTRL_SH_P2STINC 16
263 #define SCTRL_R1LOOPSEL 0x00008000 /* 0 = loop mode */
264 #define SCTRL_P2LOOPSEL 0x00004000 /* 0 = loop mode */
265 #define SCTRL_P1LOOPSEL 0x00002000 /* 0 = loop mode */
266 #define SCTRL_P2PAUSE 0x00001000 /* 1 = pause mode */
267 #define SCTRL_P1PAUSE 0x00000800 /* 1 = pause mode */
268 #define SCTRL_R1INTEN 0x00000400 /* enable interrupt */
269 #define SCTRL_P2INTEN 0x00000200 /* enable interrupt */
270 #define SCTRL_P1INTEN 0x00000100 /* enable interrupt */
271 #define SCTRL_P1SCTRLD 0x00000080 /* reload sample count register for DAC1 */
272 #define SCTRL_P2DACSEN 0x00000040 /* 1 = DAC2 play back last sample when disabled */
273 #define SCTRL_R1SEB 0x00000020 /* 1 = 16bit */
274 #define SCTRL_R1SMB 0x00000010 /* 1 = stereo */
275 #define SCTRL_R1FMT 0x00000030 /* format mask */
276 #define SCTRL_SH_R1FMT 4
277 #define SCTRL_P2SEB 0x00000008 /* 1 = 16bit */
278 #define SCTRL_P2SMB 0x00000004 /* 1 = stereo */
279 #define SCTRL_P2FMT 0x0000000c /* format mask */
280 #define SCTRL_SH_P2FMT 2
281 #define SCTRL_P1SEB 0x00000002 /* 1 = 16bit */
282 #define SCTRL_P1SMB 0x00000001 /* 1 = stereo */
283 #define SCTRL_P1FMT 0x00000003 /* format mask */
284 #define SCTRL_SH_P1FMT 0
285
286 /* misc stuff */
287
288 #define FMODE_DAC 4 /* slight misuse of mode_t */
289
290 /* MIDI buffer sizes */
291
292 #define MIDIINBUF 256
293 #define MIDIOUTBUF 256
294
295 #define FMODE_MIDI_SHIFT 3
296 #define FMODE_MIDI_READ (FMODE_READ << FMODE_MIDI_SHIFT)
297 #define FMODE_MIDI_WRITE (FMODE_WRITE << FMODE_MIDI_SHIFT)
298
299 #define SND_DEV_DSP16 5
300
301 /* --------------------------------------------------------------------- */
302
303 struct es1370_state {
304 /* magic */
305 unsigned int magic;
306
307 /* we keep sb cards in a linked list */
308 struct es1370_state *next;
309
310 /* soundcore stuff */
311 int dev_audio;
312 int dev_mixer;
313 int dev_dac;
314 int dev_midi;
315
316 /* hardware resources */
317 unsigned long io; /* long for SPARC */
318 unsigned int irq;
319
320 /* mixer registers; there is no HW readback */
321 struct {
322 unsigned short vol[10];
323 unsigned int recsrc;
324 unsigned int modcnt;
325 unsigned short micpreamp;
326 unsigned int imix;
327 } mix;
328
329 /* wave stuff */
330 unsigned ctrl;
331 unsigned sctrl;
332
333 spinlock_t lock;
334 struct semaphore open_sem;
335 mode_t open_mode;
336 wait_queue_head_t open_wait;
337
338 struct dmabuf {
339 void *rawbuf;
340 unsigned buforder;
341 unsigned numfrag;
342 unsigned fragshift;
343 unsigned hwptr, swptr;
344 unsigned total_bytes;
345 int count;
346 unsigned error; /* over/underrun */
347 wait_queue_head_t wait;
348 /* redundant, but makes calculations easier */
349 unsigned fragsize;
350 unsigned dmasize;
351 unsigned fragsamples;
352 /* OSS stuff */
353 unsigned mapped:1;
354 unsigned ready:1;
355 unsigned endcleared:1;
356 unsigned ossfragshift;
357 int ossmaxfrags;
358 unsigned subdivision;
359 } dma_dac1, dma_dac2, dma_adc;
360
361 /* midi stuff */
362 struct {
363 unsigned ird, iwr, icnt;
364 unsigned ord, owr, ocnt;
365 wait_queue_head_t iwait;
366 wait_queue_head_t owait;
367 unsigned char ibuf[MIDIINBUF];
368 unsigned char obuf[MIDIOUTBUF];
369 } midi;
370 };
371
372 /* --------------------------------------------------------------------- */
373
374 static struct es1370_state *devs = NULL;
375
376 /*
377 * The following buffer is used to point the phantom write channel to,
378 * so that it cannot wreak havoc. The attribute makes sure it doesn't
379 * cross a page boundary and ensures dword alignment for the DMA engine
380 */
381 static unsigned char bugbuf[16] __attribute__ ((aligned (16)));
382
383 /* --------------------------------------------------------------------- */
384
385 extern inline unsigned ld2(unsigned int x)
386 {
387 unsigned r = 0;
388
389 if (x >= 0x10000) {
390 x >>= 16;
391 r += 16;
392 }
393 if (x >= 0x100) {
394 x >>= 8;
395 r += 8;
396 }
397 if (x >= 0x10) {
398 x >>= 4;
399 r += 4;
400 }
401 if (x >= 4) {
402 x >>= 2;
403 r += 2;
404 }
405 if (x >= 2)
406 r++;
407 return r;
408 }
409
410 /* --------------------------------------------------------------------- */
411
412 static void wrcodec(struct es1370_state *s, unsigned char idx, unsigned char data)
413 {
414 unsigned long tmo = jiffies + HZ/10;
415
416 do {
417 if (!(inl(s->io+ES1370_REG_STATUS) & STAT_CSTAT)) {
418 outw((((unsigned short)idx)<<8)|data, s->io+ES1370_REG_CODEC);
419 return;
420 }
421 schedule();
422 } while ((signed)(tmo-jiffies) > 0);
423 printk(KERN_ERR "es1370: write to codec register timeout\n");
424 }
425
426 /* --------------------------------------------------------------------- */
427
428 extern inline void stop_adc(struct es1370_state *s)
429 {
430 unsigned long flags;
431
432 spin_lock_irqsave(&s->lock, flags);
433 s->ctrl &= ~CTRL_ADC_EN;
434 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
435 spin_unlock_irqrestore(&s->lock, flags);
436 }
437
438 extern inline void stop_dac1(struct es1370_state *s)
439 {
440 unsigned long flags;
441
442 spin_lock_irqsave(&s->lock, flags);
443 s->ctrl &= ~CTRL_DAC1_EN;
444 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
445 spin_unlock_irqrestore(&s->lock, flags);
446 }
447
448 extern inline void stop_dac2(struct es1370_state *s)
449 {
450 unsigned long flags;
451
452 spin_lock_irqsave(&s->lock, flags);
453 s->ctrl &= ~CTRL_DAC2_EN;
454 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
455 spin_unlock_irqrestore(&s->lock, flags);
456 }
457
458 static void start_dac1(struct es1370_state *s)
459 {
460 unsigned long flags;
461 unsigned fragremain, fshift;
462
463 spin_lock_irqsave(&s->lock, flags);
464 if (!(s->ctrl & CTRL_DAC1_EN) && (s->dma_dac1.mapped || s->dma_dac1.count > 0)
465 && s->dma_dac1.ready) {
466 s->ctrl |= CTRL_DAC1_EN;
467 s->sctrl = (s->sctrl & ~(SCTRL_P1LOOPSEL | SCTRL_P1PAUSE | SCTRL_P1SCTRLD)) | SCTRL_P1INTEN;
468 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
469 fragremain = ((- s->dma_dac1.hwptr) & (s->dma_dac1.fragsize-1));
470 fshift = sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
471 if (fragremain < 2*fshift)
472 fragremain = s->dma_dac1.fragsize;
473 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_DAC1_SCOUNT);
474 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
475 outl((s->dma_dac1.fragsize >> fshift) - 1, s->io+ES1370_REG_DAC1_SCOUNT);
476 }
477 spin_unlock_irqrestore(&s->lock, flags);
478 }
479
480 static void start_dac2(struct es1370_state *s)
481 {
482 unsigned long flags;
483 unsigned fragremain, fshift;
484
485 spin_lock_irqsave(&s->lock, flags);
486 if (!(s->ctrl & CTRL_DAC2_EN) && (s->dma_dac2.mapped || s->dma_dac2.count > 0)
487 && s->dma_dac2.ready) {
488 s->ctrl |= CTRL_DAC2_EN;
489 s->sctrl = (s->sctrl & ~(SCTRL_P2LOOPSEL | SCTRL_P2PAUSE | SCTRL_P2DACSEN |
490 SCTRL_P2ENDINC | SCTRL_P2STINC)) | SCTRL_P2INTEN |
491 (((s->sctrl & SCTRL_P2FMT) ? 2 : 1) << SCTRL_SH_P2ENDINC) |
492 (0 << SCTRL_SH_P2STINC);
493 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
494 fragremain = ((- s->dma_dac2.hwptr) & (s->dma_dac2.fragsize-1));
495 fshift = sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
496 if (fragremain < 2*fshift)
497 fragremain = s->dma_dac2.fragsize;
498 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_DAC2_SCOUNT);
499 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
500 outl((s->dma_dac2.fragsize >> fshift) - 1, s->io+ES1370_REG_DAC2_SCOUNT);
501 }
502 spin_unlock_irqrestore(&s->lock, flags);
503 }
504
505 static void start_adc(struct es1370_state *s)
506 {
507 unsigned long flags;
508 unsigned fragremain, fshift;
509
510 spin_lock_irqsave(&s->lock, flags);
511 if (!(s->ctrl & CTRL_ADC_EN) && (s->dma_adc.mapped || s->dma_adc.count < (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize))
512 && s->dma_adc.ready) {
513 s->ctrl |= CTRL_ADC_EN;
514 s->sctrl = (s->sctrl & ~SCTRL_R1LOOPSEL) | SCTRL_R1INTEN;
515 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
516 fragremain = ((- s->dma_adc.hwptr) & (s->dma_adc.fragsize-1));
517 fshift = sample_shift[(s->sctrl & SCTRL_R1FMT) >> SCTRL_SH_R1FMT];
518 if (fragremain < 2*fshift)
519 fragremain = s->dma_adc.fragsize;
520 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_ADC_SCOUNT);
521 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
522 outl((s->dma_adc.fragsize >> fshift) - 1, s->io+ES1370_REG_ADC_SCOUNT);
523 }
524 spin_unlock_irqrestore(&s->lock, flags);
525 }
526
527 /* --------------------------------------------------------------------- */
528
529 #define DMABUF_DEFAULTORDER (17-PAGE_SHIFT)
530 #define DMABUF_MINORDER 1
531
532 extern inline void dealloc_dmabuf(struct dmabuf *db)
533 {
534 unsigned long map, mapend;
535
536 if (db->rawbuf) {
537 /* undo marking the pages as reserved */
538 mapend = MAP_NR(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
539 for (map = MAP_NR(db->rawbuf); map <= mapend; map++)
540 clear_bit(PG_reserved, &mem_map[map].flags);
541 free_pages((unsigned long)db->rawbuf, db->buforder);
542 }
543 db->rawbuf = NULL;
544 db->mapped = db->ready = 0;
545 }
546
547 static int prog_dmabuf(struct es1370_state *s, struct dmabuf *db, unsigned rate, unsigned fmt, unsigned reg)
548 {
549 int order;
550 unsigned bytepersec;
551 unsigned bufs;
552 unsigned long map, mapend;
553
554 db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
555 if (!db->rawbuf) {
556 db->ready = db->mapped = 0;
557 for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--)
558 if ((db->rawbuf = (void *)__get_free_pages(GFP_KERNEL, order)))
559 break;
560 if (!db->rawbuf)
561 return -ENOMEM;
562 db->buforder = order;
563 /* now mark the pages as reserved; otherwise remap_page_range doesn't do what we want */
564 mapend = MAP_NR(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
565 for (map = MAP_NR(db->rawbuf); map <= mapend; map++)
566 set_bit(PG_reserved, &mem_map[map].flags);
567 }
568 fmt &= ES1370_FMT_MASK;
569 bytepersec = rate << sample_shift[fmt];
570 bufs = PAGE_SIZE << db->buforder;
571 if (db->ossfragshift) {
572 if ((1000 << db->ossfragshift) < bytepersec)
573 db->fragshift = ld2(bytepersec/1000);
574 else
575 db->fragshift = db->ossfragshift;
576 } else {
577 db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1));
578 if (db->fragshift < 3)
579 db->fragshift = 3;
580 }
581 db->numfrag = bufs >> db->fragshift;
582 while (db->numfrag < 4 && db->fragshift > 3) {
583 db->fragshift--;
584 db->numfrag = bufs >> db->fragshift;
585 }
586 db->fragsize = 1 << db->fragshift;
587 if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
588 db->numfrag = db->ossmaxfrags;
589 db->fragsamples = db->fragsize >> sample_shift[fmt];
590 db->dmasize = db->numfrag << db->fragshift;
591 memset(db->rawbuf, (fmt & ES1370_FMT_S16) ? 0 : 0x80, db->dmasize);
592 outl((reg >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
593 outl(virt_to_bus(db->rawbuf), s->io+(reg & 0xff));
594 outl((db->dmasize >> 2)-1, s->io+((reg + 4) & 0xff));
595 db->ready = 1;
596 return 0;
597 }
598
599 extern inline int prog_dmabuf_adc(struct es1370_state *s)
600 {
601 stop_adc(s);
602 return prog_dmabuf(s, &s->dma_adc, DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV),
603 (s->sctrl >> SCTRL_SH_R1FMT) & ES1370_FMT_MASK, ES1370_REG_ADC_FRAMEADR);
604 }
605
606 extern inline int prog_dmabuf_dac2(struct es1370_state *s)
607 {
608 stop_dac2(s);
609 return prog_dmabuf(s, &s->dma_dac2, DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV),
610 (s->sctrl >> SCTRL_SH_P2FMT) & ES1370_FMT_MASK, ES1370_REG_DAC2_FRAMEADR);
611 }
612
613 extern inline int prog_dmabuf_dac1(struct es1370_state *s)
614 {
615 stop_dac1(s);
616 return prog_dmabuf(s, &s->dma_dac1, dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL],
617 (s->sctrl >> SCTRL_SH_P1FMT) & ES1370_FMT_MASK, ES1370_REG_DAC1_FRAMEADR);
618 }
619
620 extern inline unsigned get_hwptr(struct es1370_state *s, struct dmabuf *db, unsigned reg)
621 {
622 unsigned hwptr, diff;
623
624 outl((reg >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
625 hwptr = (inl(s->io+(reg & 0xff)) >> 14) & 0x3fffc;
626 diff = (db->dmasize + hwptr - db->hwptr) % db->dmasize;
627 db->hwptr = hwptr;
628 return diff;
629 }
630
631 extern inline void clear_advance(void *buf, unsigned bsize, unsigned bptr, unsigned len, unsigned char c)
632 {
633 if (bptr + len > bsize) {
634 unsigned x = bsize - bptr;
635 memset(((char *)buf) + bptr, c, x);
636 bptr = 0;
637 len -= x;
638 }
639 memset(((char *)buf) + bptr, c, len);
640 }
641
642 /* call with spinlock held! */
643 static void es1370_update_ptr(struct es1370_state *s)
644 {
645 int diff;
646
647 /* update ADC pointer */
648 if (s->ctrl & CTRL_ADC_EN) {
649 diff = get_hwptr(s, &s->dma_adc, ES1370_REG_ADC_FRAMECNT);
650 s->dma_adc.total_bytes += diff;
651 s->dma_adc.count += diff;
652 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
653 wake_up(&s->dma_adc.wait);
654 if (!s->dma_adc.mapped) {
655 if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) {
656 s->ctrl &= ~CTRL_ADC_EN;
657 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
658 s->dma_adc.error++;
659 }
660 }
661 }
662 /* update DAC1 pointer */
663 if (s->ctrl & CTRL_DAC1_EN) {
664 diff = get_hwptr(s, &s->dma_dac1, ES1370_REG_DAC1_FRAMECNT);
665 s->dma_dac1.total_bytes += diff;
666 if (s->dma_dac1.mapped) {
667 s->dma_dac1.count += diff;
668 if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
669 wake_up(&s->dma_dac1.wait);
670 } else {
671 s->dma_dac1.count -= diff;
672 if (s->dma_dac1.count <= 0) {
673 s->ctrl &= ~CTRL_DAC1_EN;
674 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
675 s->dma_dac1.error++;
676 } else if (s->dma_dac1.count <= (signed)s->dma_dac1.fragsize && !s->dma_dac1.endcleared) {
677 clear_advance(s->dma_dac1.rawbuf, s->dma_dac1.dmasize, s->dma_dac1.swptr,
678 s->dma_dac1.fragsize, (s->sctrl & SCTRL_P1SEB) ? 0 : 0x80);
679 s->dma_dac1.endcleared = 1;
680 }
681 if (s->dma_dac1.count + (signed)s->dma_dac1.fragsize <= (signed)s->dma_dac1.dmasize)
682 wake_up(&s->dma_dac1.wait);
683 }
684 }
685 /* update DAC2 pointer */
686 if (s->ctrl & CTRL_DAC2_EN) {
687 diff = get_hwptr(s, &s->dma_dac2, ES1370_REG_DAC2_FRAMECNT);
688 s->dma_dac2.total_bytes += diff;
689 if (s->dma_dac2.mapped) {
690 s->dma_dac2.count += diff;
691 if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
692 wake_up(&s->dma_dac2.wait);
693 } else {
694 s->dma_dac2.count -= diff;
695 if (s->dma_dac2.count <= 0) {
696 s->ctrl &= ~CTRL_DAC2_EN;
697 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
698 s->dma_dac2.error++;
699 } else if (s->dma_dac2.count <= (signed)s->dma_dac2.fragsize && !s->dma_dac2.endcleared) {
700 clear_advance(s->dma_dac2.rawbuf, s->dma_dac2.dmasize, s->dma_dac2.swptr,
701 s->dma_dac2.fragsize, (s->sctrl & SCTRL_P2SEB) ? 0 : 0x80);
702 s->dma_dac2.endcleared = 1;
703 }
704 if (s->dma_dac2.count + (signed)s->dma_dac2.fragsize <= (signed)s->dma_dac2.dmasize)
705 wake_up(&s->dma_dac2.wait);
706 }
707 }
708 }
709
710 /* hold spinlock for the following! */
711 static void es1370_handle_midi(struct es1370_state *s)
712 {
713 unsigned char ch;
714 int wake;
715
716 if (!(s->ctrl & CTRL_UART_EN))
717 return;
718 wake = 0;
719 while (inb(s->io+ES1370_REG_UART_STATUS) & USTAT_RXRDY) {
720 ch = inb(s->io+ES1370_REG_UART_DATA);
721 if (s->midi.icnt < MIDIINBUF) {
722 s->midi.ibuf[s->midi.iwr] = ch;
723 s->midi.iwr = (s->midi.iwr + 1) % MIDIINBUF;
724 s->midi.icnt++;
725 }
726 wake = 1;
727 }
728 if (wake)
729 wake_up(&s->midi.iwait);
730 wake = 0;
731 while ((inb(s->io+ES1370_REG_UART_STATUS) & USTAT_TXRDY) && s->midi.ocnt > 0) {
732 outb(s->midi.obuf[s->midi.ord], s->io+ES1370_REG_UART_DATA);
733 s->midi.ord = (s->midi.ord + 1) % MIDIOUTBUF;
734 s->midi.ocnt--;
735 if (s->midi.ocnt < MIDIOUTBUF-16)
736 wake = 1;
737 }
738 if (wake)
739 wake_up(&s->midi.owait);
740 outb((s->midi.ocnt > 0) ? UCTRL_RXINTEN | UCTRL_ENA_TXINT : UCTRL_RXINTEN, s->io+ES1370_REG_UART_CONTROL);
741 }
742
743 static void es1370_interrupt(int irq, void *dev_id, struct pt_regs *regs)
744 {
745 struct es1370_state *s = (struct es1370_state *)dev_id;
746 unsigned int intsrc, sctl;
747
748 /* fastpath out, to ease interrupt sharing */
749 intsrc = inl(s->io+ES1370_REG_STATUS);
750 if (!(intsrc & 0x80000000))
751 return;
752 spin_lock(&s->lock);
753 /* clear audio interrupts first */
754 sctl = s->sctrl;
755 if (intsrc & STAT_ADC)
756 sctl &= ~SCTRL_R1INTEN;
757 if (intsrc & STAT_DAC1)
758 sctl &= ~SCTRL_P1INTEN;
759 if (intsrc & STAT_DAC2)
760 sctl &= ~SCTRL_P2INTEN;
761 outl(sctl, s->io+ES1370_REG_SERIAL_CONTROL);
762 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
763 es1370_update_ptr(s);
764 es1370_handle_midi(s);
765 spin_unlock(&s->lock);
766 }
767
768 /* --------------------------------------------------------------------- */
769
770 static const char invalid_magic[] = KERN_CRIT "es1370: invalid magic value\n";
771
772 #define VALIDATE_STATE(s) \
773 ({ \
774 if (!(s) || (s)->magic != ES1370_MAGIC) { \
775 printk(invalid_magic); \
776 return -ENXIO; \
777 } \
778 })
779
780 /* --------------------------------------------------------------------- */
781
782 static const struct {
783 unsigned volidx:4;
784 unsigned left:4;
785 unsigned right:4;
786 unsigned stereo:1;
787 unsigned recmask:13;
788 unsigned avail:1;
789 } mixtable[SOUND_MIXER_NRDEVICES] = {
790 [SOUND_MIXER_VOLUME] = { 0, 0x0, 0x1, 1, 0x0000, 1 }, /* master */
791 [SOUND_MIXER_PCM] = { 1, 0x2, 0x3, 1, 0x0400, 1 }, /* voice */
792 [SOUND_MIXER_SYNTH] = { 2, 0x4, 0x5, 1, 0x0060, 1 }, /* FM */
793 [SOUND_MIXER_CD] = { 3, 0x6, 0x7, 1, 0x0006, 1 }, /* CD */
794 [SOUND_MIXER_LINE] = { 4, 0x8, 0x9, 1, 0x0018, 1 }, /* Line */
795 [SOUND_MIXER_LINE1] = { 5, 0xa, 0xb, 1, 0x1800, 1 }, /* AUX */
796 [SOUND_MIXER_LINE2] = { 6, 0xc, 0x0, 0, 0x0100, 1 }, /* Mono1 */
797 [SOUND_MIXER_LINE3] = { 7, 0xd, 0x0, 0, 0x0200, 1 }, /* Mono2 */
798 [SOUND_MIXER_MIC] = { 8, 0xe, 0x0, 0, 0x0001, 1 }, /* Mic */
799 [SOUND_MIXER_OGAIN] = { 9, 0xf, 0x0, 0, 0x0000, 1 } /* mono out */
800 };
801
802 static void set_recsrc(struct es1370_state *s, unsigned int val)
803 {
804 unsigned int i, j;
805
806 for (j = i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
807 if (!(val & (1 << i)))
808 continue;
809 if (!mixtable[i].recmask) {
810 val &= ~(1 << i);
811 continue;
812 }
813 j |= mixtable[i].recmask;
814 }
815 s->mix.recsrc = val;
816 wrcodec(s, 0x12, j & 0xd5);
817 wrcodec(s, 0x13, j & 0xaa);
818 wrcodec(s, 0x14, (j >> 8) & 0x17);
819 wrcodec(s, 0x15, (j >> 8) & 0x0f);
820 i = (j & 0x37f) | ((j << 1) & 0x3000) | 0xc60;
821 if (!s->mix.imix) {
822 i &= 0xff60; /* mute record and line monitor */
823 }
824 wrcodec(s, 0x10, i);
825 wrcodec(s, 0x11, i >> 8);
826 }
827
828 static int mixer_ioctl(struct es1370_state *s, unsigned int cmd, unsigned long arg)
829 {
830 unsigned long flags;
831 int i, val;
832 unsigned char l, r, rl, rr;
833
834 VALIDATE_STATE(s);
835 if (cmd == SOUND_MIXER_PRIVATE1) {
836 /* enable/disable/query mixer preamp */
837 get_user_ret(val, (int *)arg, -EFAULT);
838 if (val != -1) {
839 s->mix.micpreamp = !!val;
840 wrcodec(s, 0x19, s->mix.micpreamp);
841 }
842 return put_user(s->mix.micpreamp, (int *)arg);
843 }
844 if (cmd == SOUND_MIXER_PRIVATE2) {
845 /* enable/disable/query use of linein as second lineout */
846 get_user_ret(val, (int *)arg, -EFAULT);
847 if (val != -1) {
848 spin_lock_irqsave(&s->lock, flags);
849 if (val)
850 s->ctrl |= CTRL_XCTL0;
851 else
852 s->ctrl &= ~CTRL_XCTL0;
853 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
854 spin_unlock_irqrestore(&s->lock, flags);
855 }
856 return put_user((s->ctrl & CTRL_XCTL0) ? 1 : 0, (int *)arg);
857 }
858 if (cmd == SOUND_MIXER_PRIVATE3) {
859 /* enable/disable/query microphone impedance setting */
860 get_user_ret(val, (int *)arg, -EFAULT);
861 if (val != -1) {
862 spin_lock_irqsave(&s->lock, flags);
863 if (val)
864 s->ctrl |= CTRL_XCTL1;
865 else
866 s->ctrl &= ~CTRL_XCTL1;
867 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
868 spin_unlock_irqrestore(&s->lock, flags);
869 }
870 return put_user((s->ctrl & CTRL_XCTL1) ? 1 : 0, (int *)arg);
871 }
872 if (cmd == SOUND_MIXER_INFO) {
873 mixer_info info;
874 strncpy(info.id, "ES1370", sizeof(info.id));
875 strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
876 info.modify_counter = s->mix.modcnt;
877 if (copy_to_user((void *)arg, &info, sizeof(info)))
878 return -EFAULT;
879 return 0;
880 }
881 if (cmd == SOUND_OLD_MIXER_INFO) {
882 _old_mixer_info info;
883 strncpy(info.id, "ES1370", sizeof(info.id));
884 strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
885 if (copy_to_user((void *)arg, &info, sizeof(info)))
886 return -EFAULT;
887 return 0;
888 }
889 if (cmd == OSS_GETVERSION)
890 return put_user(SOUND_VERSION, (int *)arg);
891 if (_IOC_TYPE(cmd) != 'M' || _IOC_SIZE(cmd) != sizeof(int))
892 return -EINVAL;
893 if (_IOC_DIR(cmd) == _IOC_READ) {
894 switch (_IOC_NR(cmd)) {
895 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
896 return put_user(s->mix.recsrc, (int *)arg);
897
898 case SOUND_MIXER_DEVMASK: /* Arg contains a bit for each supported device */
899 val = SOUND_MASK_IMIX;
900 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
901 if (mixtable[i].avail)
902 val |= 1 << i;
903 return put_user(val, (int *)arg);
904
905 case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
906 for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
907 if (mixtable[i].recmask)
908 val |= 1 << i;
909 return put_user(val, (int *)arg);
910
911 case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
912 for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
913 if (mixtable[i].stereo)
914 val |= 1 << i;
915 return put_user(val, (int *)arg);
916
917 case SOUND_MIXER_CAPS:
918 return put_user(0, (int *)arg);
919
920 case SOUND_MIXER_IMIX:
921 return put_user(s->mix.imix, (int *)arg);
922
923 default:
924 i = _IOC_NR(cmd);
925 if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
926 return -EINVAL;
927 return put_user(s->mix.vol[mixtable[i].volidx], (int *)arg);
928 }
929 }
930 if (_IOC_DIR(cmd) != (_IOC_READ|_IOC_WRITE))
931 return -EINVAL;
932 s->mix.modcnt++;
933 switch (_IOC_NR(cmd)) {
934
935 case SOUND_MIXER_IMIX:
936 get_user_ret(s->mix.imix, (int *)arg, -EFAULT);
937 set_recsrc(s, s->mix.recsrc);
938 return 0;
939
940 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
941 get_user_ret(val, (int *)arg, -EFAULT);
942 set_recsrc(s, val);
943 return 0;
944
945 default:
946 i = _IOC_NR(cmd);
947 if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
948 return -EINVAL;
949 get_user_ret(val, (int *)arg, -EFAULT);
950 l = val & 0xff;
951 if (l > 100)
952 l = 100;
953 if (mixtable[i].stereo) {
954 r = (val >> 8) & 0xff;
955 if (r > 100)
956 r = 100;
957 if (l < 7) {
958 rl = 0x80;
959 l = 0;
960 } else {
961 rl = 31 - ((l - 7) / 3);
962 l = (31 - rl) * 3 + 7;
963 }
964 if (r < 7) {
965 rr = 0x80;
966 r = 0;
967 } else {
968 rr = 31 - ((r - 7) / 3);
969 r = (31 - rr) * 3 + 7;
970 }
971 wrcodec(s, mixtable[i].right, rr);
972 } else {
973 if (mixtable[i].left == 15) {
974 if (l < 2) {
975 rr = rl = 0x80;
976 r = l = 0;
977 } else {
978 rl = 7 - ((l - 2) / 14);
979 r = l = (7 - rl) * 14 + 2;
980 }
981 } else {
982 if (l < 7) {
983 rl = 0x80;
984 r = l = 0;
985 } else {
986 rl = 31 - ((l - 7) / 3);
987 r = l = (31 - rl) * 3 + 7;
988 }
989 }
990 }
991 wrcodec(s, mixtable[i].left, rl);
992 #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
993 s->mix.vol[mixtable[i].volidx] = ((unsigned int)r << 8) | l;
994 #else
995 s->mix.vol[mixtable[i].volidx] = val;
996 #endif
997 return put_user(s->mix.vol[mixtable[i].volidx], (int *)arg);
998 }
999 }
1000
1001 /* --------------------------------------------------------------------- */
1002
1003 static loff_t es1370_llseek(struct file *file, loff_t offset, int origin)
1004 {
1005 return -ESPIPE;
1006 }
1007
1008 /* --------------------------------------------------------------------- */
1009
1010 static int es1370_open_mixdev(struct inode *inode, struct file *file)
1011 {
1012 int minor = MINOR(inode->i_rdev);
1013 struct es1370_state *s = devs;
1014
1015 while (s && s->dev_mixer != minor)
1016 s = s->next;
1017 if (!s)
1018 return -ENODEV;
1019 VALIDATE_STATE(s);
1020 file->private_data = s;
1021 MOD_INC_USE_COUNT;
1022 return 0;
1023 }
1024
1025 static int es1370_release_mixdev(struct inode *inode, struct file *file)
1026 {
1027 struct es1370_state *s = (struct es1370_state *)file->private_data;
1028
1029 VALIDATE_STATE(s);
1030 MOD_DEC_USE_COUNT;
1031 return 0;
1032 }
1033
1034 static int es1370_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1035 {
1036 return mixer_ioctl((struct es1370_state *)file->private_data, cmd, arg);
1037 }
1038
1039 static /*const*/ struct file_operations es1370_mixer_fops = {
1040 &es1370_llseek,
1041 NULL, /* read */
1042 NULL, /* write */
1043 NULL, /* readdir */
1044 NULL, /* poll */
1045 &es1370_ioctl_mixdev,
1046 NULL, /* mmap */
1047 &es1370_open_mixdev,
1048 NULL, /* flush */
1049 &es1370_release_mixdev,
1050 NULL, /* fsync */
1051 NULL, /* fasync */
1052 NULL, /* check_media_change */
1053 NULL, /* revalidate */
1054 NULL, /* lock */
1055 };
1056
1057 /* --------------------------------------------------------------------- */
1058
1059 static int drain_dac1(struct es1370_state *s, int nonblock)
1060 {
1061 DECLARE_WAITQUEUE(wait, current);
1062 unsigned long flags;
1063 int count, tmo;
1064
1065 if (s->dma_dac1.mapped || !s->dma_dac1.ready)
1066 return 0;
1067 __set_current_state(TASK_INTERRUPTIBLE);
1068 add_wait_queue(&s->dma_dac1.wait, &wait);
1069 for (;;) {
1070 spin_lock_irqsave(&s->lock, flags);
1071 count = s->dma_dac1.count;
1072 spin_unlock_irqrestore(&s->lock, flags);
1073 if (count <= 0)
1074 break;
1075 if (signal_pending(current))
1076 break;
1077 if (nonblock) {
1078 remove_wait_queue(&s->dma_dac1.wait, &wait);
1079 set_current_state(TASK_RUNNING);
1080 return -EBUSY;
1081 }
1082 tmo = 3 * HZ * (count + s->dma_dac1.fragsize) / 2
1083 / dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL];
1084 tmo >>= sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
1085 if (!schedule_timeout(tmo + 1))
1086 DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
1087 }
1088 remove_wait_queue(&s->dma_dac1.wait, &wait);
1089 set_current_state(TASK_RUNNING);
1090 if (signal_pending(current))
1091 return -ERESTARTSYS;
1092 return 0;
1093 }
1094
1095 static int drain_dac2(struct es1370_state *s, int nonblock)
1096 {
1097 DECLARE_WAITQUEUE(wait, current);
1098 unsigned long flags;
1099 int count, tmo;
1100
1101 if (s->dma_dac2.mapped || !s->dma_dac2.ready)
1102 return 0;
1103 __set_current_state(TASK_INTERRUPTIBLE);
1104 add_wait_queue(&s->dma_dac2.wait, &wait);
1105 for (;;) {
1106 spin_lock_irqsave(&s->lock, flags);
1107 count = s->dma_dac2.count;
1108 spin_unlock_irqrestore(&s->lock, flags);
1109 if (count <= 0)
1110 break;
1111 if (signal_pending(current))
1112 break;
1113 if (nonblock) {
1114 remove_wait_queue(&s->dma_dac2.wait, &wait);
1115 set_current_state(TASK_RUNNING);
1116 return -EBUSY;
1117 }
1118 tmo = 3 * HZ * (count + s->dma_dac2.fragsize) / 2
1119 / DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV);
1120 tmo >>= sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
1121 if (!schedule_timeout(tmo + 1))
1122 DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
1123 }
1124 remove_wait_queue(&s->dma_dac2.wait, &wait);
1125 set_current_state(TASK_RUNNING);
1126 if (signal_pending(current))
1127 return -ERESTARTSYS;
1128 return 0;
1129 }
1130
1131 /* --------------------------------------------------------------------- */
1132
1133 static ssize_t es1370_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
1134 {
1135 struct es1370_state *s = (struct es1370_state *)file->private_data;
1136 ssize_t ret;
1137 unsigned long flags;
1138 unsigned swptr;
1139 int cnt;
1140
1141 VALIDATE_STATE(s);
1142 if (ppos != &file->f_pos)
1143 return -ESPIPE;
1144 if (s->dma_adc.mapped)
1145 return -ENXIO;
1146 if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
1147 return ret;
1148 if (!access_ok(VERIFY_WRITE, buffer, count))
1149 return -EFAULT;
1150 ret = 0;
1151 while (count > 0) {
1152 spin_lock_irqsave(&s->lock, flags);
1153 swptr = s->dma_adc.swptr;
1154 cnt = s->dma_adc.dmasize-swptr;
1155 if (s->dma_adc.count < cnt)
1156 cnt = s->dma_adc.count;
1157 spin_unlock_irqrestore(&s->lock, flags);
1158 if (cnt > count)
1159 cnt = count;
1160 if (cnt <= 0) {
1161 start_adc(s);
1162 if (file->f_flags & O_NONBLOCK)
1163 return ret ? ret : -EAGAIN;
1164 interruptible_sleep_on(&s->dma_adc.wait);
1165 if (signal_pending(current))
1166 return ret ? ret : -ERESTARTSYS;
1167 continue;
1168 }
1169 if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt))
1170 return ret ? ret : -EFAULT;
1171 swptr = (swptr + cnt) % s->dma_adc.dmasize;
1172 spin_lock_irqsave(&s->lock, flags);
1173 s->dma_adc.swptr = swptr;
1174 s->dma_adc.count -= cnt;
1175 spin_unlock_irqrestore(&s->lock, flags);
1176 count -= cnt;
1177 buffer += cnt;
1178 ret += cnt;
1179 start_adc(s);
1180 }
1181 return ret;
1182 }
1183
1184 static ssize_t es1370_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
1185 {
1186 struct es1370_state *s = (struct es1370_state *)file->private_data;
1187 ssize_t ret;
1188 unsigned long flags;
1189 unsigned swptr;
1190 int cnt;
1191
1192 VALIDATE_STATE(s);
1193 if (ppos != &file->f_pos)
1194 return -ESPIPE;
1195 if (s->dma_dac2.mapped)
1196 return -ENXIO;
1197 if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
1198 return ret;
1199 if (!access_ok(VERIFY_READ, buffer, count))
1200 return -EFAULT;
1201 ret = 0;
1202 while (count > 0) {
1203 spin_lock_irqsave(&s->lock, flags);
1204 if (s->dma_dac2.count < 0) {
1205 s->dma_dac2.count = 0;
1206 s->dma_dac2.swptr = s->dma_dac2.hwptr;
1207 }
1208 swptr = s->dma_dac2.swptr;
1209 cnt = s->dma_dac2.dmasize-swptr;
1210 if (s->dma_dac2.count + cnt > s->dma_dac2.dmasize)
1211 cnt = s->dma_dac2.dmasize - s->dma_dac2.count;
1212 spin_unlock_irqrestore(&s->lock, flags);
1213 if (cnt > count)
1214 cnt = count;
1215 if (cnt <= 0) {
1216 start_dac2(s);
1217 if (file->f_flags & O_NONBLOCK)
1218 return ret ? ret : -EAGAIN;
1219 interruptible_sleep_on(&s->dma_dac2.wait);
1220 if (signal_pending(current))
1221 return ret ? ret : -ERESTARTSYS;
1222 continue;
1223 }
1224 if (copy_from_user(s->dma_dac2.rawbuf + swptr, buffer, cnt))
1225 return ret ? ret : -EFAULT;
1226 swptr = (swptr + cnt) % s->dma_dac2.dmasize;
1227 spin_lock_irqsave(&s->lock, flags);
1228 s->dma_dac2.swptr = swptr;
1229 s->dma_dac2.count += cnt;
1230 s->dma_dac2.endcleared = 0;
1231 spin_unlock_irqrestore(&s->lock, flags);
1232 count -= cnt;
1233 buffer += cnt;
1234 ret += cnt;
1235 start_dac2(s);
1236 }
1237 return ret;
1238 }
1239
1240 static unsigned int es1370_poll(struct file *file, struct poll_table_struct *wait)
1241 {
1242 struct es1370_state *s = (struct es1370_state *)file->private_data;
1243 unsigned long flags;
1244 unsigned int mask = 0;
1245
1246 VALIDATE_STATE(s);
1247 if (file->f_mode & FMODE_WRITE)
1248 poll_wait(file, &s->dma_dac2.wait, wait);
1249 if (file->f_mode & FMODE_READ)
1250 poll_wait(file, &s->dma_adc.wait, wait);
1251 spin_lock_irqsave(&s->lock, flags);
1252 es1370_update_ptr(s);
1253 if (file->f_mode & FMODE_READ) {
1254 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
1255 mask |= POLLIN | POLLRDNORM;
1256 }
1257 if (file->f_mode & FMODE_WRITE) {
1258 if (s->dma_dac2.mapped) {
1259 if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
1260 mask |= POLLOUT | POLLWRNORM;
1261 } else {
1262 if ((signed)s->dma_dac2.dmasize >= s->dma_dac2.count + (signed)s->dma_dac2.fragsize)
1263 mask |= POLLOUT | POLLWRNORM;
1264 }
1265 }
1266 spin_unlock_irqrestore(&s->lock, flags);
1267 return mask;
1268 }
1269
1270 static int es1370_mmap(struct file *file, struct vm_area_struct *vma)
1271 {
1272 struct es1370_state *s = (struct es1370_state *)file->private_data;
1273 struct dmabuf *db;
1274 int ret;
1275 unsigned long size;
1276
1277 VALIDATE_STATE(s);
1278 if (vma->vm_flags & VM_WRITE) {
1279 if ((ret = prog_dmabuf_dac2(s)) != 0)
1280 return ret;
1281 db = &s->dma_dac2;
1282 } else if (vma->vm_flags & VM_READ) {
1283 if ((ret = prog_dmabuf_adc(s)) != 0)
1284 return ret;
1285 db = &s->dma_adc;
1286 } else
1287 return -EINVAL;
1288 if (vma->vm_offset != 0)
1289 return -EINVAL;
1290 size = vma->vm_end - vma->vm_start;
1291 if (size > (PAGE_SIZE << db->buforder))
1292 return -EINVAL;
1293 if (remap_page_range(vma->vm_start, virt_to_phys(db->rawbuf), size, vma->vm_page_prot))
1294 return -EAGAIN;
1295 db->mapped = 1;
1296 return 0;
1297 }
1298
1299 static int es1370_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1300 {
1301 struct es1370_state *s = (struct es1370_state *)file->private_data;
1302 unsigned long flags;
1303 audio_buf_info abinfo;
1304 count_info cinfo;
1305 int val, mapped, ret;
1306
1307 VALIDATE_STATE(s);
1308 mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac2.mapped) ||
1309 ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
1310 switch (cmd) {
1311 case OSS_GETVERSION:
1312 return put_user(SOUND_VERSION, (int *)arg);
1313
1314 case SNDCTL_DSP_SYNC:
1315 if (file->f_mode & FMODE_WRITE)
1316 return drain_dac2(s, 0/*file->f_flags & O_NONBLOCK*/);
1317 return 0;
1318
1319 case SNDCTL_DSP_SETDUPLEX:
1320 return 0;
1321
1322 case SNDCTL_DSP_GETCAPS:
1323 return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg);
1324
1325 case SNDCTL_DSP_RESET:
1326 if (file->f_mode & FMODE_WRITE) {
1327 stop_dac2(s);
1328 synchronize_irq();
1329 s->dma_dac2.swptr = s->dma_dac2.hwptr = s->dma_dac2.count = s->dma_dac2.total_bytes = 0;
1330 }
1331 if (file->f_mode & FMODE_READ) {
1332 stop_adc(s);
1333 synchronize_irq();
1334 s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
1335 }
1336 return 0;
1337
1338 case SNDCTL_DSP_SPEED:
1339 get_user_ret(val, (int *)arg, -EFAULT);
1340 if (val >= 0) {
1341 if (s->open_mode & (~file->f_mode) & (FMODE_READ|FMODE_WRITE))
1342 return -EINVAL;
1343 if (val < 4000)
1344 val = 4000;
1345 if (val > 50000)
1346 val = 50000;
1347 stop_adc(s);
1348 stop_dac2(s);
1349 s->dma_adc.ready = s->dma_dac2.ready = 0;
1350 spin_lock_irqsave(&s->lock, flags);
1351 s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(val) << CTRL_SH_PCLKDIV);
1352 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1353 spin_unlock_irqrestore(&s->lock, flags);
1354 }
1355 return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), (int *)arg);
1356
1357 case SNDCTL_DSP_STEREO:
1358 get_user_ret(val, (int *)arg, -EFAULT);
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)
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)
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 return 0;
1382
1383 case SNDCTL_DSP_CHANNELS:
1384 get_user_ret(val, (int *)arg, -EFAULT);
1385 if (val != 0) {
1386 if (file->f_mode & FMODE_READ) {
1387 stop_adc(s);
1388 s->dma_adc.ready = 0;
1389 spin_lock_irqsave(&s->lock, flags);
1390 if (val >= 2)
1391 s->sctrl |= SCTRL_R1SMB;
1392 else
1393 s->sctrl &= ~SCTRL_R1SMB;
1394 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1395 spin_unlock_irqrestore(&s->lock, flags);
1396 }
1397 if (file->f_mode & FMODE_WRITE) {
1398 stop_dac2(s);
1399 s->dma_dac2.ready = 0;
1400 spin_lock_irqsave(&s->lock, flags);
1401 if (val >= 2)
1402 s->sctrl |= SCTRL_P2SMB;
1403 else
1404 s->sctrl &= ~SCTRL_P2SMB;
1405 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1406 spin_unlock_irqrestore(&s->lock, flags);
1407 }
1408 }
1409 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ? 2 : 1, (int *)arg);
1410
1411 case SNDCTL_DSP_GETFMTS: /* Returns a mask */
1412 return put_user(AFMT_S16_LE|AFMT_U8, (int *)arg);
1413
1414 case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
1415 get_user_ret(val, (int *)arg, -EFAULT);
1416 if (val != AFMT_QUERY) {
1417 if (file->f_mode & FMODE_READ) {
1418 stop_adc(s);
1419 s->dma_adc.ready = 0;
1420 spin_lock_irqsave(&s->lock, flags);
1421 if (val == AFMT_S16_LE)
1422 s->sctrl |= SCTRL_R1SEB;
1423 else
1424 s->sctrl &= ~SCTRL_R1SEB;
1425 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1426 spin_unlock_irqrestore(&s->lock, flags);
1427 }
1428 if (file->f_mode & FMODE_WRITE) {
1429 stop_dac2(s);
1430 s->dma_dac2.ready = 0;
1431 spin_lock_irqsave(&s->lock, flags);
1432 if (val == AFMT_S16_LE)
1433 s->sctrl |= SCTRL_P2SEB;
1434 else
1435 s->sctrl &= ~SCTRL_P2SEB;
1436 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1437 spin_unlock_irqrestore(&s->lock, flags);
1438 }
1439 }
1440 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
1441 AFMT_S16_LE : AFMT_U8, (int *)arg);
1442
1443 case SNDCTL_DSP_POST:
1444 return 0;
1445
1446 case SNDCTL_DSP_GETTRIGGER:
1447 val = 0;
1448 if (file->f_mode & FMODE_READ && s->ctrl & CTRL_ADC_EN)
1449 val |= PCM_ENABLE_INPUT;
1450 if (file->f_mode & FMODE_WRITE && s->ctrl & CTRL_DAC2_EN)
1451 val |= PCM_ENABLE_OUTPUT;
1452 return put_user(val, (int *)arg);
1453
1454 case SNDCTL_DSP_SETTRIGGER:
1455 get_user_ret(val, (int *)arg, -EFAULT);
1456 if (file->f_mode & FMODE_READ) {
1457 if (val & PCM_ENABLE_INPUT) {
1458 if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
1459 return ret;
1460 start_adc(s);
1461 } else
1462 stop_adc(s);
1463 }
1464 if (file->f_mode & FMODE_WRITE) {
1465 if (val & PCM_ENABLE_OUTPUT) {
1466 if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
1467 return ret;
1468 start_dac2(s);
1469 } else
1470 stop_dac2(s);
1471 }
1472 return 0;
1473
1474 case SNDCTL_DSP_GETOSPACE:
1475 if (!(file->f_mode & FMODE_WRITE))
1476 return -EINVAL;
1477 if (!(s->ctrl & CTRL_DAC2_EN) && (val = prog_dmabuf_dac2(s)) != 0)
1478 return val;
1479 spin_lock_irqsave(&s->lock, flags);
1480 es1370_update_ptr(s);
1481 abinfo.fragsize = s->dma_dac2.fragsize;
1482 abinfo.bytes = s->dma_dac2.dmasize - s->dma_dac2.count;
1483 abinfo.fragstotal = s->dma_dac2.numfrag;
1484 abinfo.fragments = abinfo.bytes >> s->dma_dac2.fragshift;
1485 spin_unlock_irqrestore(&s->lock, flags);
1486 return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1487
1488 case SNDCTL_DSP_GETISPACE:
1489 if (!(file->f_mode & FMODE_READ))
1490 return -EINVAL;
1491 if (!(s->ctrl & CTRL_ADC_EN) && (val = prog_dmabuf_adc(s)) != 0)
1492 return val;
1493 spin_lock_irqsave(&s->lock, flags);
1494 es1370_update_ptr(s);
1495 abinfo.fragsize = s->dma_adc.fragsize;
1496 abinfo.bytes = s->dma_adc.count;
1497 abinfo.fragstotal = s->dma_adc.numfrag;
1498 abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
1499 spin_unlock_irqrestore(&s->lock, flags);
1500 return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1501
1502 case SNDCTL_DSP_NONBLOCK:
1503 file->f_flags |= O_NONBLOCK;
1504 return 0;
1505
1506 case SNDCTL_DSP_GETODELAY:
1507 if (!(file->f_mode & FMODE_WRITE))
1508 return -EINVAL;
1509 spin_lock_irqsave(&s->lock, flags);
1510 es1370_update_ptr(s);
1511 val = s->dma_dac2.count;
1512 spin_unlock_irqrestore(&s->lock, flags);
1513 return put_user(val, (int *)arg);
1514
1515 case SNDCTL_DSP_GETIPTR:
1516 if (!(file->f_mode & FMODE_READ))
1517 return -EINVAL;
1518 spin_lock_irqsave(&s->lock, flags);
1519 es1370_update_ptr(s);
1520 cinfo.bytes = s->dma_adc.total_bytes;
1521 cinfo.blocks = s->dma_adc.count >> s->dma_adc.fragshift;
1522 cinfo.ptr = s->dma_adc.hwptr;
1523 if (s->dma_adc.mapped)
1524 s->dma_adc.count &= s->dma_adc.fragsize-1;
1525 spin_unlock_irqrestore(&s->lock, flags);
1526 return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
1527
1528 case SNDCTL_DSP_GETOPTR:
1529 if (!(file->f_mode & FMODE_WRITE))
1530 return -EINVAL;
1531 spin_lock_irqsave(&s->lock, flags);
1532 es1370_update_ptr(s);
1533 cinfo.bytes = s->dma_dac2.total_bytes;
1534 cinfo.blocks = s->dma_dac2.count >> s->dma_dac2.fragshift;
1535 cinfo.ptr = s->dma_dac2.hwptr;
1536 if (s->dma_dac2.mapped)
1537 s->dma_dac2.count &= s->dma_dac2.fragsize-1;
1538 spin_unlock_irqrestore(&s->lock, flags);
1539 return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
1540
1541 case SNDCTL_DSP_GETBLKSIZE:
1542 if (file->f_mode & FMODE_WRITE) {
1543 if ((val = prog_dmabuf_dac2(s)))
1544 return val;
1545 return put_user(s->dma_dac2.fragsize, (int *)arg);
1546 }
1547 if ((val = prog_dmabuf_adc(s)))
1548 return val;
1549 return put_user(s->dma_adc.fragsize, (int *)arg);
1550
1551 case SNDCTL_DSP_SETFRAGMENT:
1552 get_user_ret(val, (int *)arg, -EFAULT);
1553 if (file->f_mode & FMODE_READ) {
1554 s->dma_adc.ossfragshift = val & 0xffff;
1555 s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
1556 if (s->dma_adc.ossfragshift < 4)
1557 s->dma_adc.ossfragshift = 4;
1558 if (s->dma_adc.ossfragshift > 15)
1559 s->dma_adc.ossfragshift = 15;
1560 if (s->dma_adc.ossmaxfrags < 4)
1561 s->dma_adc.ossmaxfrags = 4;
1562 }
1563 if (file->f_mode & FMODE_WRITE) {
1564 s->dma_dac2.ossfragshift = val & 0xffff;
1565 s->dma_dac2.ossmaxfrags = (val >> 16) & 0xffff;
1566 if (s->dma_dac2.ossfragshift < 4)
1567 s->dma_dac2.ossfragshift = 4;
1568 if (s->dma_dac2.ossfragshift > 15)
1569 s->dma_dac2.ossfragshift = 15;
1570 if (s->dma_dac2.ossmaxfrags < 4)
1571 s->dma_dac2.ossmaxfrags = 4;
1572 }
1573 return 0;
1574
1575 case SNDCTL_DSP_SUBDIVIDE:
1576 if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
1577 (file->f_mode & FMODE_WRITE && s->dma_dac2.subdivision))
1578 return -EINVAL;
1579 get_user_ret(val, (int *)arg, -EFAULT);
1580 if (val != 1 && val != 2 && val != 4)
1581 return -EINVAL;
1582 if (file->f_mode & FMODE_READ)
1583 s->dma_adc.subdivision = val;
1584 if (file->f_mode & FMODE_WRITE)
1585 s->dma_dac2.subdivision = val;
1586 return 0;
1587
1588 case SOUND_PCM_READ_RATE:
1589 return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), (int *)arg);
1590
1591 case SOUND_PCM_READ_CHANNELS:
1592 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ?
1593 2 : 1, (int *)arg);
1594
1595 case SOUND_PCM_READ_BITS:
1596 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
1597 16 : 8, (int *)arg);
1598
1599 case SOUND_PCM_WRITE_FILTER:
1600 case SNDCTL_DSP_SETSYNCRO:
1601 case SOUND_PCM_READ_FILTER:
1602 return -EINVAL;
1603
1604 }
1605 return mixer_ioctl(s, cmd, arg);
1606 }
1607
1608 static int es1370_open(struct inode *inode, struct file *file)
1609 {
1610 int minor = MINOR(inode->i_rdev);
1611 struct es1370_state *s = devs;
1612 unsigned long flags;
1613
1614 while (s && ((s->dev_audio ^ minor) & ~0xf))
1615 s = s->next;
1616 if (!s)
1617 return -ENODEV;
1618 VALIDATE_STATE(s);
1619 file->private_data = s;
1620 /* wait for device to become free */
1621 down(&s->open_sem);
1622 while (s->open_mode & file->f_mode) {
1623 if (file->f_flags & O_NONBLOCK) {
1624 up(&s->open_sem);
1625 return -EBUSY;
1626 }
1627 up(&s->open_sem);
1628 interruptible_sleep_on(&s->open_wait);
1629 if (signal_pending(current))
1630 return -ERESTARTSYS;
1631 down(&s->open_sem);
1632 }
1633 spin_lock_irqsave(&s->lock, flags);
1634 if (!(s->open_mode & (FMODE_READ|FMODE_WRITE)))
1635 s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV);
1636 if (file->f_mode & FMODE_READ) {
1637 s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
1638 s->sctrl &= ~SCTRL_R1FMT;
1639 if ((minor & 0xf) == SND_DEV_DSP16)
1640 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_R1FMT;
1641 else
1642 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_R1FMT;
1643 }
1644 if (file->f_mode & FMODE_WRITE) {
1645 s->dma_dac2.ossfragshift = s->dma_dac2.ossmaxfrags = s->dma_dac2.subdivision = 0;
1646 s->sctrl &= ~SCTRL_P2FMT;
1647 if ((minor & 0xf) == SND_DEV_DSP16)
1648 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P2FMT;
1649 else
1650 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P2FMT;
1651 }
1652 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1653 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1654 spin_unlock_irqrestore(&s->lock, flags);
1655 s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
1656 up(&s->open_sem);
1657 MOD_INC_USE_COUNT;
1658 return 0;
1659 }
1660
1661 static int es1370_release(struct inode *inode, struct file *file)
1662 {
1663 struct es1370_state *s = (struct es1370_state *)file->private_data;
1664
1665 VALIDATE_STATE(s);
1666 if (file->f_mode & FMODE_WRITE)
1667 drain_dac2(s, file->f_flags & O_NONBLOCK);
1668 down(&s->open_sem);
1669 if (file->f_mode & FMODE_WRITE) {
1670 stop_dac2(s);
1671 synchronize_irq();
1672 dealloc_dmabuf(&s->dma_dac2);
1673 }
1674 if (file->f_mode & FMODE_READ) {
1675 stop_adc(s);
1676 dealloc_dmabuf(&s->dma_adc);
1677 }
1678 s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
1679 up(&s->open_sem);
1680 wake_up(&s->open_wait);
1681 MOD_DEC_USE_COUNT;
1682 return 0;
1683 }
1684
1685 static /*const*/ struct file_operations es1370_audio_fops = {
1686 &es1370_llseek,
1687 &es1370_read,
1688 &es1370_write,
1689 NULL, /* readdir */
1690 &es1370_poll,
1691 &es1370_ioctl,
1692 &es1370_mmap,
1693 &es1370_open,
1694 NULL, /* flush */
1695 &es1370_release,
1696 NULL, /* fsync */
1697 NULL, /* fasync */
1698 NULL, /* check_media_change */
1699 NULL, /* revalidate */
1700 NULL, /* lock */
1701 };
1702
1703 /* --------------------------------------------------------------------- */
1704
1705 static ssize_t es1370_write_dac(struct file *file, const char *buffer, size_t count, loff_t *ppos)
1706 {
1707 struct es1370_state *s = (struct es1370_state *)file->private_data;
1708 ssize_t ret = 0;
1709 unsigned long flags;
1710 unsigned swptr;
1711 int cnt;
1712
1713 VALIDATE_STATE(s);
1714 if (ppos != &file->f_pos)
1715 return -ESPIPE;
1716 if (s->dma_dac1.mapped)
1717 return -ENXIO;
1718 if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
1719 return ret;
1720 if (!access_ok(VERIFY_READ, buffer, count))
1721 return -EFAULT;
1722 while (count > 0) {
1723 spin_lock_irqsave(&s->lock, flags);
1724 if (s->dma_dac1.count < 0) {
1725 s->dma_dac1.count = 0;
1726 s->dma_dac1.swptr = s->dma_dac1.hwptr;
1727 }
1728 swptr = s->dma_dac1.swptr;
1729 cnt = s->dma_dac1.dmasize-swptr;
1730 if (s->dma_dac1.count + cnt > s->dma_dac1.dmasize)
1731 cnt = s->dma_dac1.dmasize - s->dma_dac1.count;
1732 spin_unlock_irqrestore(&s->lock, flags);
1733 if (cnt > count)
1734 cnt = count;
1735 if (cnt <= 0) {
1736 start_dac1(s);
1737 if (file->f_flags & O_NONBLOCK)
1738 return ret ? ret : -EAGAIN;
1739 interruptible_sleep_on(&s->dma_dac1.wait);
1740 if (signal_pending(current))
1741 return ret ? ret : -ERESTARTSYS;
1742 continue;
1743 }
1744 if (copy_from_user(s->dma_dac1.rawbuf + swptr, buffer, cnt))
1745 return ret ? ret : -EFAULT;
1746 swptr = (swptr + cnt) % s->dma_dac1.dmasize;
1747 spin_lock_irqsave(&s->lock, flags);
1748 s->dma_dac1.swptr = swptr;
1749 s->dma_dac1.count += cnt;
1750 s->dma_dac1.endcleared = 0;
1751 spin_unlock_irqrestore(&s->lock, flags);
1752 count -= cnt;
1753 buffer += cnt;
1754 ret += cnt;
1755 start_dac1(s);
1756 }
1757 return ret;
1758 }
1759
1760 static unsigned int es1370_poll_dac(struct file *file, struct poll_table_struct *wait)
1761 {
1762 struct es1370_state *s = (struct es1370_state *)file->private_data;
1763 unsigned long flags;
1764 unsigned int mask = 0;
1765
1766 VALIDATE_STATE(s);
1767 poll_wait(file, &s->dma_dac1.wait, wait);
1768 spin_lock_irqsave(&s->lock, flags);
1769 es1370_update_ptr(s);
1770 if (s->dma_dac1.mapped) {
1771 if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
1772 mask |= POLLOUT | POLLWRNORM;
1773 } else {
1774 if ((signed)s->dma_dac1.dmasize >= s->dma_dac1.count + (signed)s->dma_dac1.fragsize)
1775 mask |= POLLOUT | POLLWRNORM;
1776 }
1777 spin_unlock_irqrestore(&s->lock, flags);
1778 return mask;
1779 }
1780
1781 static int es1370_mmap_dac(struct file *file, struct vm_area_struct *vma)
1782 {
1783 struct es1370_state *s = (struct es1370_state *)file->private_data;
1784 int ret;
1785 unsigned long size;
1786
1787 VALIDATE_STATE(s);
1788 if (!(vma->vm_flags & VM_WRITE))
1789 return -EINVAL;
1790 if ((ret = prog_dmabuf_dac1(s)) != 0)
1791 return ret;
1792 if (vma->vm_offset != 0)
1793 return -EINVAL;
1794 size = vma->vm_end - vma->vm_start;
1795 if (size > (PAGE_SIZE << s->dma_dac1.buforder))
1796 return -EINVAL;
1797 if (remap_page_range(vma->vm_start, virt_to_phys(s->dma_dac1.rawbuf), size, vma->vm_page_prot))
1798 return -EAGAIN;
1799 s->dma_dac1.mapped = 1;
1800 return 0;
1801 }
1802
1803 static int es1370_ioctl_dac(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1804 {
1805 struct es1370_state *s = (struct es1370_state *)file->private_data;
1806 unsigned long flags;
1807 audio_buf_info abinfo;
1808 count_info cinfo;
1809 unsigned ctrl;
1810 int val, ret;
1811
1812 VALIDATE_STATE(s);
1813 switch (cmd) {
1814 case OSS_GETVERSION:
1815 return put_user(SOUND_VERSION, (int *)arg);
1816
1817 case SNDCTL_DSP_SYNC:
1818 return drain_dac1(s, 0/*file->f_flags & O_NONBLOCK*/);
1819
1820 case SNDCTL_DSP_SETDUPLEX:
1821 return -EINVAL;
1822
1823 case SNDCTL_DSP_GETCAPS:
1824 return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg);
1825
1826 case SNDCTL_DSP_RESET:
1827 stop_dac1(s);
1828 synchronize_irq();
1829 s->dma_dac1.swptr = s->dma_dac1.hwptr = s->dma_dac1.count = s->dma_dac1.total_bytes = 0;
1830 return 0;
1831
1832 case SNDCTL_DSP_SPEED:
1833 get_user_ret(val, (int *)arg, -EFAULT);
1834 if (val >= 0) {
1835 stop_dac1(s);
1836 s->dma_dac1.ready = 0;
1837 for (ctrl = 0; ctrl <= 2; ctrl++)
1838 if (val < (dac1_samplerate[ctrl] + dac1_samplerate[ctrl+1]) / 2)
1839 break;
1840 spin_lock_irqsave(&s->lock, flags);
1841 s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (ctrl << CTRL_SH_WTSRSEL);
1842 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1843 spin_unlock_irqrestore(&s->lock, flags);
1844 }
1845 return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], (int *)arg);
1846
1847 case SNDCTL_DSP_STEREO:
1848 get_user_ret(val, (int *)arg, -EFAULT);
1849 stop_dac1(s);
1850 s->dma_dac1.ready = 0;
1851 spin_lock_irqsave(&s->lock, flags);
1852 if (val)
1853 s->sctrl |= SCTRL_P1SMB;
1854 else
1855 s->sctrl &= ~SCTRL_P1SMB;
1856 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1857 spin_unlock_irqrestore(&s->lock, flags);
1858 return 0;
1859
1860 case SNDCTL_DSP_CHANNELS:
1861 get_user_ret(val, (int *)arg, -EFAULT);
1862 if (val != 0) {
1863 if (s->dma_dac1.mapped)
1864 return -EINVAL;
1865 stop_dac1(s);
1866 s->dma_dac1.ready = 0;
1867 spin_lock_irqsave(&s->lock, flags);
1868 if (val >= 2)
1869 s->sctrl |= SCTRL_P1SMB;
1870 else
1871 s->sctrl &= ~SCTRL_P1SMB;
1872 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1873 spin_unlock_irqrestore(&s->lock, flags);
1874 }
1875 return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, (int *)arg);
1876
1877 case SNDCTL_DSP_GETFMTS: /* Returns a mask */
1878 return put_user(AFMT_S16_LE|AFMT_U8, (int *)arg);
1879
1880 case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
1881 get_user_ret(val, (int *)arg, -EFAULT);
1882 if (val != AFMT_QUERY) {
1883 stop_dac1(s);
1884 s->dma_dac1.ready = 0;
1885 spin_lock_irqsave(&s->lock, flags);
1886 if (val == AFMT_S16_LE)
1887 s->sctrl |= SCTRL_P1SEB;
1888 else
1889 s->sctrl &= ~SCTRL_P1SEB;
1890 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1891 spin_unlock_irqrestore(&s->lock, flags);
1892 }
1893 return put_user((s->sctrl & SCTRL_P1SEB) ? AFMT_S16_LE : AFMT_U8, (int *)arg);
1894
1895 case SNDCTL_DSP_POST:
1896 return 0;
1897
1898 case SNDCTL_DSP_GETTRIGGER:
1899 return put_user((s->ctrl & CTRL_DAC1_EN) ? PCM_ENABLE_OUTPUT : 0, (int *)arg);
1900
1901 case SNDCTL_DSP_SETTRIGGER:
1902 get_user_ret(val, (int *)arg, -EFAULT);
1903 if (val & PCM_ENABLE_OUTPUT) {
1904 if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
1905 return ret;
1906 start_dac1(s);
1907 } else
1908 stop_dac1(s);
1909 return 0;
1910
1911 case SNDCTL_DSP_GETOSPACE:
1912 if (!(s->ctrl & CTRL_DAC2_EN) && (val = prog_dmabuf_dac1(s)) != 0)
1913 return val;
1914 spin_lock_irqsave(&s->lock, flags);
1915 es1370_update_ptr(s);
1916 abinfo.fragsize = s->dma_dac1.fragsize;
1917 abinfo.bytes = s->dma_dac1.dmasize - s->dma_dac1.count;
1918 abinfo.fragstotal = s->dma_dac1.numfrag;
1919 abinfo.fragments = abinfo.bytes >> s->dma_dac1.fragshift;
1920 spin_unlock_irqrestore(&s->lock, flags);
1921 return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1922
1923 case SNDCTL_DSP_NONBLOCK:
1924 file->f_flags |= O_NONBLOCK;
1925 return 0;
1926
1927 case SNDCTL_DSP_GETODELAY:
1928 spin_lock_irqsave(&s->lock, flags);
1929 es1370_update_ptr(s);
1930 val = s->dma_dac1.count;
1931 spin_unlock_irqrestore(&s->lock, flags);
1932 return put_user(val, (int *)arg);
1933
1934 case SNDCTL_DSP_GETOPTR:
1935 if (!(file->f_mode & FMODE_WRITE))
1936 return -EINVAL;
1937 spin_lock_irqsave(&s->lock, flags);
1938 es1370_update_ptr(s);
1939 cinfo.bytes = s->dma_dac1.total_bytes;
1940 cinfo.blocks = s->dma_dac1.count >> s->dma_dac1.fragshift;
1941 cinfo.ptr = s->dma_dac1.hwptr;
1942 if (s->dma_dac1.mapped)
1943 s->dma_dac1.count &= s->dma_dac1.fragsize-1;
1944 spin_unlock_irqrestore(&s->lock, flags);
1945 return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
1946
1947 case SNDCTL_DSP_GETBLKSIZE:
1948 if ((val = prog_dmabuf_dac1(s)))
1949 return val;
1950 return put_user(s->dma_dac1.fragsize, (int *)arg);
1951
1952 case SNDCTL_DSP_SETFRAGMENT:
1953 get_user_ret(val, (int *)arg, -EFAULT);
1954 s->dma_dac1.ossfragshift = val & 0xffff;
1955 s->dma_dac1.ossmaxfrags = (val >> 16) & 0xffff;
1956 if (s->dma_dac1.ossfragshift < 4)
1957 s->dma_dac1.ossfragshift = 4;
1958 if (s->dma_dac1.ossfragshift > 15)
1959 s->dma_dac1.ossfragshift = 15;
1960 if (s->dma_dac1.ossmaxfrags < 4)
1961 s->dma_dac1.ossmaxfrags = 4;
1962 return 0;
1963
1964 case SNDCTL_DSP_SUBDIVIDE:
1965 if (s->dma_dac1.subdivision)
1966 return -EINVAL;
1967 get_user_ret(val, (int *)arg, -EFAULT);
1968 if (val != 1 && val != 2 && val != 4)
1969 return -EINVAL;
1970 s->dma_dac1.subdivision = val;
1971 return 0;
1972
1973 case SOUND_PCM_READ_RATE:
1974 return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], (int *)arg);
1975
1976 case SOUND_PCM_READ_CHANNELS:
1977 return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, (int *)arg);
1978
1979 case SOUND_PCM_READ_BITS:
1980 return put_user((s->sctrl & SCTRL_P1SEB) ? 16 : 8, (int *)arg);
1981
1982 case SOUND_PCM_WRITE_FILTER:
1983 case SNDCTL_DSP_SETSYNCRO:
1984 case SOUND_PCM_READ_FILTER:
1985 return -EINVAL;
1986
1987 }
1988 return mixer_ioctl(s, cmd, arg);
1989 }
1990
1991 static int es1370_open_dac(struct inode *inode, struct file *file)
1992 {
1993 int minor = MINOR(inode->i_rdev);
1994 struct es1370_state *s = devs;
1995 unsigned long flags;
1996
1997 while (s && ((s->dev_dac ^ minor) & ~0xf))
1998 s = s->next;
1999 if (!s)
2000 return -ENODEV;
2001 VALIDATE_STATE(s);
2002 /* we allow opening with O_RDWR, most programs do it although they will only write */
2003 #if 0
2004 if (file->f_mode & FMODE_READ)
2005 return -EPERM;
2006 #endif
2007 if (!(file->f_mode & FMODE_WRITE))
2008 return -EINVAL;
2009 file->private_data = s;
2010 /* wait for device to become free */
2011 down(&s->open_sem);
2012 while (s->open_mode & FMODE_DAC) {
2013 if (file->f_flags & O_NONBLOCK) {
2014 up(&s->open_sem);
2015 return -EBUSY;
2016 }
2017 up(&s->open_sem);
2018 interruptible_sleep_on(&s->open_wait);
2019 if (signal_pending(current))
2020 return -ERESTARTSYS;
2021 down(&s->open_sem);
2022 }
2023 s->dma_dac1.ossfragshift = s->dma_dac1.ossmaxfrags = s->dma_dac1.subdivision = 0;
2024 spin_lock_irqsave(&s->lock, flags);
2025 s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (1 << CTRL_SH_WTSRSEL);
2026 s->sctrl &= ~SCTRL_P1FMT;
2027 if ((minor & 0xf) == SND_DEV_DSP16)
2028 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P1FMT;
2029 else
2030 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P1FMT;
2031 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2032 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2033 spin_unlock_irqrestore(&s->lock, flags);
2034 s->open_mode |= FMODE_DAC;
2035 up(&s->open_sem);
2036 MOD_INC_USE_COUNT;
2037 return 0;
2038 }
2039
2040 static int es1370_release_dac(struct inode *inode, struct file *file)
2041 {
2042 struct es1370_state *s = (struct es1370_state *)file->private_data;
2043
2044 VALIDATE_STATE(s);
2045 drain_dac1(s, file->f_flags & O_NONBLOCK);
2046 down(&s->open_sem);
2047 stop_dac1(s);
2048 dealloc_dmabuf(&s->dma_dac1);
2049 s->open_mode &= ~FMODE_DAC;
2050 up(&s->open_sem);
2051 wake_up(&s->open_wait);
2052 MOD_DEC_USE_COUNT;
2053 return 0;
2054 }
2055
2056 static /*const*/ struct file_operations es1370_dac_fops = {
2057 &es1370_llseek,
2058 NULL, /* read */
2059 &es1370_write_dac,
2060 NULL, /* readdir */
2061 &es1370_poll_dac,
2062 &es1370_ioctl_dac,
2063 &es1370_mmap_dac,
2064 &es1370_open_dac,
2065 NULL, /* flush */
2066 &es1370_release_dac,
2067 NULL, /* fsync */
2068 NULL, /* fasync */
2069 NULL, /* check_media_change */
2070 NULL, /* revalidate */
2071 NULL, /* lock */
2072 };
2073
2074 /* --------------------------------------------------------------------- */
2075
2076 static ssize_t es1370_midi_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
2077 {
2078 struct es1370_state *s = (struct es1370_state *)file->private_data;
2079 DECLARE_WAITQUEUE(wait, current);
2080 ssize_t ret;
2081 unsigned long flags;
2082 unsigned ptr;
2083 int cnt;
2084
2085 VALIDATE_STATE(s);
2086 if (ppos != &file->f_pos)
2087 return -ESPIPE;
2088 if (!access_ok(VERIFY_WRITE, buffer, count))
2089 return -EFAULT;
2090 if (count == 0)
2091 return 0;
2092 ret = 0;
2093 add_wait_queue(&s->midi.iwait, &wait);
2094 while (count > 0) {
2095 spin_lock_irqsave(&s->lock, flags);
2096 ptr = s->midi.ird;
2097 cnt = MIDIINBUF - ptr;
2098 if (s->midi.icnt < cnt)
2099 cnt = s->midi.icnt;
2100 spin_unlock_irqrestore(&s->lock, flags);
2101 if (cnt > count)
2102 cnt = count;
2103 if (cnt <= 0) {
2104 if (file->f_flags & O_NONBLOCK) {
2105 if (!ret)
2106 ret = -EAGAIN;
2107 break;
2108 }
2109 __set_current_state(TASK_INTERRUPTIBLE);
2110 schedule();
2111 if (signal_pending(current)) {
2112 if (!ret)
2113 ret = -ERESTARTSYS;
2114 break;
2115 }
2116 continue;
2117 }
2118 if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt)) {
2119 if (!ret)
2120 ret = -EFAULT;
2121 break;
2122 }
2123 ptr = (ptr + cnt) % MIDIINBUF;
2124 spin_lock_irqsave(&s->lock, flags);
2125 s->midi.ird = ptr;
2126 s->midi.icnt -= cnt;
2127 spin_unlock_irqrestore(&s->lock, flags);
2128 count -= cnt;
2129 buffer += cnt;
2130 ret += cnt;
2131 break;
2132 }
2133 __set_current_state(TASK_RUNNING);
2134 remove_wait_queue(&s->midi.iwait, &wait);
2135 return ret;
2136 }
2137
2138 static ssize_t es1370_midi_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
2139 {
2140 struct es1370_state *s = (struct es1370_state *)file->private_data;
2141 DECLARE_WAITQUEUE(wait, current);
2142 ssize_t ret;
2143 unsigned long flags;
2144 unsigned ptr;
2145 int cnt;
2146
2147 VALIDATE_STATE(s);
2148 if (ppos != &file->f_pos)
2149 return -ESPIPE;
2150 if (!access_ok(VERIFY_READ, buffer, count))
2151 return -EFAULT;
2152 if (count == 0)
2153 return 0;
2154 ret = 0;
2155 add_wait_queue(&s->midi.owait, &wait);
2156 while (count > 0) {
2157 spin_lock_irqsave(&s->lock, flags);
2158 ptr = s->midi.owr;
2159 cnt = MIDIOUTBUF - ptr;
2160 if (s->midi.ocnt + cnt > MIDIOUTBUF)
2161 cnt = MIDIOUTBUF - s->midi.ocnt;
2162 if (cnt <= 0)
2163 es1370_handle_midi(s);
2164 spin_unlock_irqrestore(&s->lock, flags);
2165 if (cnt > count)
2166 cnt = count;
2167 if (cnt <= 0) {
2168 if (file->f_flags & O_NONBLOCK) {
2169 if (!ret)
2170 ret = -EAGAIN;
2171 break;
2172 }
2173 __set_current_state(TASK_INTERRUPTIBLE);
2174 schedule();
2175 if (signal_pending(current)) {
2176 if (!ret)
2177 ret = -ERESTARTSYS;
2178 break;
2179 }
2180 continue;
2181 }
2182 if (copy_from_user(s->midi.obuf + ptr, buffer, cnt)) {
2183 if (!ret)
2184 ret = -EFAULT;
2185 break;
2186 }
2187 ptr = (ptr + cnt) % MIDIOUTBUF;
2188 spin_lock_irqsave(&s->lock, flags);
2189 s->midi.owr = ptr;
2190 s->midi.ocnt += cnt;
2191 spin_unlock_irqrestore(&s->lock, flags);
2192 count -= cnt;
2193 buffer += cnt;
2194 ret += cnt;
2195 spin_lock_irqsave(&s->lock, flags);
2196 es1370_handle_midi(s);
2197 spin_unlock_irqrestore(&s->lock, flags);
2198 }
2199 __set_current_state(TASK_RUNNING);
2200 remove_wait_queue(&s->midi.owait, &wait);
2201 return ret;
2202 }
2203
2204 static unsigned int es1370_midi_poll(struct file *file, struct poll_table_struct *wait)
2205 {
2206 struct es1370_state *s = (struct es1370_state *)file->private_data;
2207 unsigned long flags;
2208 unsigned int mask = 0;
2209
2210 VALIDATE_STATE(s);
2211 if (file->f_mode & FMODE_WRITE)
2212 poll_wait(file, &s->midi.owait, wait);
2213 if (file->f_mode & FMODE_READ)
2214 poll_wait(file, &s->midi.iwait, wait);
2215 spin_lock_irqsave(&s->lock, flags);
2216 if (file->f_mode & FMODE_READ) {
2217 if (s->midi.icnt > 0)
2218 mask |= POLLIN | POLLRDNORM;
2219 }
2220 if (file->f_mode & FMODE_WRITE) {
2221 if (s->midi.ocnt < MIDIOUTBUF)
2222 mask |= POLLOUT | POLLWRNORM;
2223 }
2224 spin_unlock_irqrestore(&s->lock, flags);
2225 return mask;
2226 }
2227
2228 static int es1370_midi_open(struct inode *inode, struct file *file)
2229 {
2230 int minor = MINOR(inode->i_rdev);
2231 struct es1370_state *s = devs;
2232 unsigned long flags;
2233
2234 while (s && s->dev_midi != minor)
2235 s = s->next;
2236 if (!s)
2237 return -ENODEV;
2238 VALIDATE_STATE(s);
2239 file->private_data = s;
2240 /* wait for device to become free */
2241 down(&s->open_sem);
2242 while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
2243 if (file->f_flags & O_NONBLOCK) {
2244 up(&s->open_sem);
2245 return -EBUSY;
2246 }
2247 up(&s->open_sem);
2248 interruptible_sleep_on(&s->open_wait);
2249 if (signal_pending(current))
2250 return -ERESTARTSYS;
2251 down(&s->open_sem);
2252 }
2253 spin_lock_irqsave(&s->lock, flags);
2254 if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2255 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2256 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2257 outb(UCTRL_CNTRL_SWR, s->io+ES1370_REG_UART_CONTROL);
2258 outb(0, s->io+ES1370_REG_UART_CONTROL);
2259 outb(0, s->io+ES1370_REG_UART_TEST);
2260 }
2261 if (file->f_mode & FMODE_READ) {
2262 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2263 }
2264 if (file->f_mode & FMODE_WRITE) {
2265 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2266 }
2267 s->ctrl |= CTRL_UART_EN;
2268 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2269 es1370_handle_midi(s);
2270 spin_unlock_irqrestore(&s->lock, flags);
2271 s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
2272 up(&s->open_sem);
2273 MOD_INC_USE_COUNT;
2274 return 0;
2275 }
2276
2277 static int es1370_midi_release(struct inode *inode, struct file *file)
2278 {
2279 struct es1370_state *s = (struct es1370_state *)file->private_data;
2280 DECLARE_WAITQUEUE(wait, current);
2281 unsigned long flags;
2282 unsigned count, tmo;
2283
2284 VALIDATE_STATE(s);
2285
2286 if (file->f_mode & FMODE_WRITE) {
2287 __set_current_state(TASK_INTERRUPTIBLE);
2288 add_wait_queue(&s->midi.owait, &wait);
2289 for (;;) {
2290 spin_lock_irqsave(&s->lock, flags);
2291 count = s->midi.ocnt;
2292 spin_unlock_irqrestore(&s->lock, flags);
2293 if (count <= 0)
2294 break;
2295 if (signal_pending(current))
2296 break;
2297 if (file->f_flags & O_NONBLOCK) {
2298 remove_wait_queue(&s->midi.owait, &wait);
2299 set_current_state(TASK_RUNNING);
2300 return -EBUSY;
2301 }
2302 tmo = (count * HZ) / 3100;
2303 if (!schedule_timeout(tmo ? : 1) && tmo)
2304 DBG(printk(KERN_DEBUG "es1370: midi timed out??\n");)
2305 }
2306 remove_wait_queue(&s->midi.owait, &wait);
2307 set_current_state(TASK_RUNNING);
2308 }
2309 down(&s->open_sem);
2310 s->open_mode &= (~(file->f_mode << FMODE_MIDI_SHIFT)) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE);
2311 spin_lock_irqsave(&s->lock, flags);
2312 if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2313 s->ctrl &= ~CTRL_UART_EN;
2314 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2315 }
2316 spin_unlock_irqrestore(&s->lock, flags);
2317 up(&s->open_sem);
2318 wake_up(&s->open_wait);
2319 MOD_DEC_USE_COUNT;
2320 return 0;
2321 }
2322
2323 static /*const*/ struct file_operations es1370_midi_fops = {
2324 &es1370_llseek,
2325 &es1370_midi_read,
2326 &es1370_midi_write,
2327 NULL, /* readdir */
2328 &es1370_midi_poll,
2329 NULL, /* ioctl */
2330 NULL, /* mmap */
2331 &es1370_midi_open,
2332 NULL, /* flush */
2333 &es1370_midi_release,
2334 NULL, /* fsync */
2335 NULL, /* fasync */
2336 NULL, /* check_media_change */
2337 NULL, /* revalidate */
2338 NULL, /* lock */
2339 };
2340
2341 /* --------------------------------------------------------------------- */
2342
2343 /* maximum number of devices */
2344 #define NR_DEVICE 5
2345
2346 static int joystick[NR_DEVICE] = { 0, };
2347 static int lineout[NR_DEVICE] = { 0, };
2348 static int micbias[NR_DEVICE] = { 0, };
2349
2350 MODULE_PARM(joystick, "1-" __MODULE_STRING(NR_DEVICE) "i");
2351 MODULE_PARM_DESC(joystick, "if 1 enables joystick interface (still need separate driver)");
2352 MODULE_PARM(lineout, "1-" __MODULE_STRING(NR_DEVICE) "i");
2353 MODULE_PARM_DESC(lineout, "if 1 the LINE input is converted to LINE out");
2354 MODULE_PARM(micbias, "1-" __MODULE_STRING(NR_DEVICE) "i");
2355 MODULE_PARM_DESC(micbias, "sets the +5V bias for an electret microphone");
2356
2357 MODULE_AUTHOR("Thomas M. Sailer, sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu");
2358 MODULE_DESCRIPTION("ES1370 AudioPCI Driver");
2359
2360 /* --------------------------------------------------------------------- */
2361
2362 static struct initvol {
2363 int mixch;
2364 int vol;
2365 } initvol[] __initdata = {
2366 { SOUND_MIXER_WRITE_VOLUME, 0x4040 },
2367 { SOUND_MIXER_WRITE_PCM, 0x4040 },
2368 { SOUND_MIXER_WRITE_SYNTH, 0x4040 },
2369 { SOUND_MIXER_WRITE_CD, 0x4040 },
2370 { SOUND_MIXER_WRITE_LINE, 0x4040 },
2371 { SOUND_MIXER_WRITE_LINE1, 0x4040 },
2372 { SOUND_MIXER_WRITE_LINE2, 0x4040 },
2373 { SOUND_MIXER_WRITE_LINE3, 0x4040 },
2374 { SOUND_MIXER_WRITE_MIC, 0x4040 },
2375 { SOUND_MIXER_WRITE_OGAIN, 0x4040 }
2376 };
2377
2378 #define RSRCISIOREGION(dev,num) ((dev)->resource[(num)].start != 0 && \
2379 ((dev)->resource[(num)].flags & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_IO)
2380 #define RSRCADDRESS(dev,num) ((dev)->resource[(num)].start)
2381
2382
2383 static int __init init_es1370(void)
2384 {
2385 struct es1370_state *s;
2386 struct pci_dev *pcidev = NULL;
2387 mm_segment_t fs;
2388 int i, val, index = 0;
2389
2390 if (!pci_present()) /* No PCI bus in this machine! */
2391 return -ENODEV;
2392 printk(KERN_INFO "es1370: version v0.29 time " __TIME__ " " __DATE__ "\n");
2393 while (index < NR_DEVICE &&
2394 (pcidev = pci_find_device(PCI_VENDOR_ID_ENSONIQ, PCI_DEVICE_ID_ENSONIQ_ES1370, pcidev))) {
2395 if (!RSRCISIOREGION(pcidev, 0))
2396 continue;
2397 if (pcidev->irq == 0)
2398 continue;
2399 if (!(s = kmalloc(sizeof(struct es1370_state), GFP_KERNEL))) {
2400 printk(KERN_WARNING "es1370: out of memory\n");
2401 continue;
2402 }
2403 memset(s, 0, sizeof(struct es1370_state));
2404 init_waitqueue_head(&s->dma_adc.wait);
2405 init_waitqueue_head(&s->dma_dac1.wait);
2406 init_waitqueue_head(&s->dma_dac2.wait);
2407 init_waitqueue_head(&s->open_wait);
2408 init_waitqueue_head(&s->midi.iwait);
2409 init_waitqueue_head(&s->midi.owait);
2410 init_MUTEX(&s->open_sem);
2411 spin_lock_init(&s->lock);
2412 s->magic = ES1370_MAGIC;
2413 s->io = RSRCADDRESS(pcidev, 0);
2414 s->irq = pcidev->irq;
2415 if (check_region(s->io, ES1370_EXTENT)) {
2416 printk(KERN_ERR "es1370: io ports %#lx-%#lx in use\n", s->io, s->io+ES1370_EXTENT-1);
2417 goto err_region;
2418 }
2419 request_region(s->io, ES1370_EXTENT, "es1370");
2420 if (request_irq(s->irq, es1370_interrupt, SA_SHIRQ, "es1370", s)) {
2421 printk(KERN_ERR "es1370: irq %u in use\n", s->irq);
2422 goto err_irq;
2423 }
2424 /* initialize codec registers */
2425 /* note: setting CTRL_SERR_DIS is reported to break
2426 * mic bias setting (by Kim.Berts@fisub.mail.abb.com) */
2427 s->ctrl = CTRL_CDC_EN | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV) | (1 << CTRL_SH_WTSRSEL);
2428 if (joystick[index]) {
2429 if (check_region(0x200, JOY_EXTENT))
2430 printk(KERN_ERR "es1370: io port 0x200 in use\n");
2431 else
2432 s->ctrl |= CTRL_JYSTK_EN;
2433 }
2434 if (lineout[index])
2435 s->ctrl |= CTRL_XCTL0;
2436 if (micbias[index])
2437 s->ctrl |= CTRL_XCTL1;
2438 s->sctrl = 0;
2439 printk(KERN_INFO "es1370: found adapter at io %#lx irq %u\n"
2440 KERN_INFO "es1370: features: joystick %s, line %s, mic impedance %s\n",
2441 s->io, s->irq, (s->ctrl & CTRL_JYSTK_EN) ? "on" : "off",
2442 (s->ctrl & CTRL_XCTL0) ? "out" : "in",
2443 (s->ctrl & CTRL_XCTL1) ? "1" : "0");
2444 /* register devices */
2445 if ((s->dev_audio = register_sound_dsp(&es1370_audio_fops, -1)) < 0)
2446 goto err_dev1;
2447 if ((s->dev_mixer = register_sound_mixer(&es1370_mixer_fops, -1)) < 0)
2448 goto err_dev2;
2449 if ((s->dev_dac = register_sound_dsp(&es1370_dac_fops, -1)) < 0)
2450 goto err_dev3;
2451 if ((s->dev_midi = register_sound_midi(&es1370_midi_fops, -1)) < 0)
2452 goto err_dev4;
2453 /* initialize the chips */
2454 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2455 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2456 /* point phantom write channel to "bugbuf" */
2457 outl((ES1370_REG_PHANTOM_FRAMEADR >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
2458 outl(virt_to_bus(bugbuf), s->io+(ES1370_REG_PHANTOM_FRAMEADR & 0xff));
2459 outl(0, s->io+(ES1370_REG_PHANTOM_FRAMECNT & 0xff));
2460 pci_set_master(pcidev); /* enable bus mastering */
2461 wrcodec(s, 0x16, 3); /* no RST, PD */
2462 wrcodec(s, 0x17, 0); /* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off the LRCLK2 PLL; program DAC_SYNC=0!! */
2463 wrcodec(s, 0x18, 0); /* recording source is mixer */
2464 wrcodec(s, 0x19, s->mix.micpreamp = 1); /* turn on MIC preamp */
2465 s->mix.imix = 1;
2466 fs = get_fs();
2467 set_fs(KERNEL_DS);
2468 val = SOUND_MASK_LINE|SOUND_MASK_SYNTH|SOUND_MASK_CD;
2469 mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val);
2470 for (i = 0; i < sizeof(initvol)/sizeof(initvol[0]); i++) {
2471 val = initvol[i].vol;
2472 mixer_ioctl(s, initvol[i].mixch, (unsigned long)&val);
2473 }
2474 set_fs(fs);
2475 /* queue it for later freeing */
2476 s->next = devs;
2477 devs = s;
2478 index++;
2479 continue;
2480
2481 err_dev4:
2482 unregister_sound_dsp(s->dev_dac);
2483 err_dev3:
2484 unregister_sound_mixer(s->dev_mixer);
2485 err_dev2:
2486 unregister_sound_dsp(s->dev_audio);
2487 err_dev1:
2488 printk(KERN_ERR "es1370: cannot register misc device\n");
2489 free_irq(s->irq, s);
2490 err_irq:
2491 release_region(s->io, ES1370_EXTENT);
2492 err_region:
2493 kfree_s(s, sizeof(struct es1370_state));
2494 }
2495 if (!devs)
2496 return -ENODEV;
2497 return 0;
2498 }
2499
2500 static void __exit cleanup_es1370(void)
2501 {
2502 struct es1370_state *s;
2503
2504 while ((s = devs)) {
2505 devs = devs->next;
2506 outl(CTRL_SERR_DIS | (1 << CTRL_SH_WTSRSEL), s->io+ES1370_REG_CONTROL); /* switch everything off */
2507 outl(0, s->io+ES1370_REG_SERIAL_CONTROL); /* clear serial interrupts */
2508 synchronize_irq();
2509 free_irq(s->irq, s);
2510 release_region(s->io, ES1370_EXTENT);
2511 unregister_sound_dsp(s->dev_audio);
2512 unregister_sound_mixer(s->dev_mixer);
2513 unregister_sound_dsp(s->dev_dac);
2514 unregister_sound_midi(s->dev_midi);
2515 kfree_s(s, sizeof(struct es1370_state));
2516 }
2517 printk(KERN_INFO "es1370: unloading\n");
2518 }
2519
2520 module_init(init_es1370);
2521 module_exit(cleanup_es1370);
2522
2523 /* --------------------------------------------------------------------- */
2524
2525 #ifndef MODULE
2526
2527 /* format is: es1370=[joystick[,lineout[,micbias]]] */
2528
2529 static int __init es1370_setup(char *str)
2530 {
2531 static unsigned __initlocaldata nr_dev = 0;
2532
2533 if (nr_dev >= NR_DEVICE)
2534 return 0;
2535
2536 (void)
2537 ( (get_option(&str,&joystick[nr_dev]) == 2)
2538 && (get_option(&str,&lineout [nr_dev]) == 2)
2539 && get_option(&str,&micbias [nr_dev])
2540 );
2541
2542 nr_dev++;
2543 return 1;
2544 }
2545
2546 __setup("es1370=", es1370_setup);
2547
2548 #endif /* MODULE */
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