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Import 2.3.99pre7-1
[davej-history.git] / drivers / sound / es1370.c
blobf457347713776642a3cc5134a3ae4d4ee2adc0b7
1 /*****************************************************************************/
2
3 /*
4 * es1370.c -- Ensoniq ES1370/Asahi Kasei AK4531 audio driver.
5 *
6 * Copyright (C) 1998-2000 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 * 26.03.1998 0.1 Initial release
56 * 31.03.1998 0.2 Fix bug in GETOSPACE
57 * 04.04.1998 0.3 Make it work (again) under 2.0.33
58 * Fix mixer write operation not returning the actual
59 * settings
60 * 05.04.1998 0.4 First attempt at using the new PCI stuff
61 * 29.04.1998 0.5 Fix hang when ^C is pressed on amp
62 * 07.05.1998 0.6 Don't double lock around stop_*() in *_release()
63 * 10.05.1998 0.7 First stab at a simple midi interface (no bells&whistles)
64 * 14.05.1998 0.8 Don't allow excessive interrupt rates
65 * 08.06.1998 0.9 First release using Alan Cox' soundcore instead of
66 * miscdevice
67 * 05.07.1998 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 * 03.08.1998 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 * 22.08.1998 0.12 Mixer registers actually have 5 instead of 4 bits
78 * pointed out by Itai Nahshon
79 * 31.08.1998 0.13 Fix realplayer problems - dac.count issues
80 * 08.10.1998 0.14 Joystick support fixed
81 * -- Oliver Neukum <c188@org.chemie.uni-muenchen.de>
82 * 10.12.1998 0.15 Fix drain_dac trying to wait on not yet initialized DMA
83 * 16.12.1998 0.16 Don't wake up app until there are fragsize bytes to read/write
84 * 06.01.1999 0.17 remove the silly SA_INTERRUPT flag.
85 * hopefully killed the egcs section type conflict
86 * 12.03.1999 0.18 cinfo.blocks should be reset after GETxPTR ioctl.
87 * reported by Johan Maes <joma@telindus.be>
88 * 22.03.1999 0.19 return EAGAIN instead of EBUSY when O_NONBLOCK
89 * read/write cannot be executed
90 * 07.04.1999 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 * 10.05.1999 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 * 11.05.1999 0.22 Implemented the IMIX call to mute recording monitor.
100 * Guenter Geiger <geiger@epy.co.at>
101 * 15.06.1999 0.23 Fix bad allocation bug.
102 * Thanks to Deti Fliegl <fliegl@in.tum.de>
103 * 28.06.1999 0.24 Add pci_set_master
104 * 02.08.1999 0.25 Added workaround for the "phantom write" bug first
105 * documented by Dave Sharpless from Anchor Games
106 * 03.08.1999 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 * 12.08.1999 0.27 module_init/__setup fixes
110 * 19.08.1999 0.28 SOUND_MIXER_IMIX fixes, reported by Gianluca <gialluca@mail.tiscalinet.it>
111 * 31.08.1999 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 * 03.09.1999 0.30 change read semantics for MIDI to match
115 * OSS more closely; remove possible wakeup race
116 * 28.10.1999 0.31 More waitqueue races fixed
117 * 08.01.2000 0.32 Prevent some ioctl's from returning bad count values on underrun/overrun;
118 * Tim Janik's BSE (Bedevilled Sound Engine) found this
119 * 07.02.2000 0.33 Use pci_alloc_consistent and pci_register_driver
120 *
121 * some important things missing in Ensoniq documentation:
122 *
123 * Experimental PCLKDIV results: play the same waveforms on both DAC1 and DAC2
124 * and vary PCLKDIV to obtain zero beat.
125 * 5512sps: 254
126 * 44100sps: 30
127 * seems to be fs = 1411200/(PCLKDIV+2)
128 *
129 * should find out when curr_sample_ct is cleared and
130 * where exactly the CCB fetches data
131 *
132 * The card uses a 22.5792 MHz crystal.
133 * The LINEIN jack may be converted to an AOUT jack by
134 * setting pin 47 (XCTL0) of the ES1370 to high.
135 * Pin 48 (XCTL1) of the ES1370 sets the +5V bias for an electretmic
136 *
137 *
138 */
139
140 /*****************************************************************************/
141
142 #include <linux/version.h>
143 #include <linux/module.h>
144 #include <linux/string.h>
145 #include <linux/ioport.h>
146 #include <linux/sched.h>
147 #include <linux/delay.h>
148 #include <linux/sound.h>
149 #include <linux/malloc.h>
150 #include <linux/soundcard.h>
151 #include <linux/pci.h>
152 #include <asm/io.h>
153 #include <asm/dma.h>
154 #include <linux/init.h>
155 #include <linux/poll.h>
156 #include <linux/spinlock.h>
157 #include <asm/uaccess.h>
158 #include <asm/hardirq.h>
159
160 /* --------------------------------------------------------------------- */
161
162 #undef OSS_DOCUMENTED_MIXER_SEMANTICS
163 #define DBG(x) {}
164 /*#define DBG(x) {x}*/
165
166 /* --------------------------------------------------------------------- */
167
168 #ifndef PCI_VENDOR_ID_ENSONIQ
169 #define PCI_VENDOR_ID_ENSONIQ 0x1274
170 #endif
171 #ifndef PCI_DEVICE_ID_ENSONIQ_ES1370
172 #define PCI_DEVICE_ID_ENSONIQ_ES1370 0x5000
173 #endif
174
175 #define ES1370_MAGIC ((PCI_VENDOR_ID_ENSONIQ<<16)|PCI_DEVICE_ID_ENSONIQ_ES1370)
176
177 #define ES1370_EXTENT 0x40
178 #define JOY_EXTENT 8
179
180 #define ES1370_REG_CONTROL 0x00
181 #define ES1370_REG_STATUS 0x04
182 #define ES1370_REG_UART_DATA 0x08
183 #define ES1370_REG_UART_STATUS 0x09
184 #define ES1370_REG_UART_CONTROL 0x09
185 #define ES1370_REG_UART_TEST 0x0a
186 #define ES1370_REG_MEMPAGE 0x0c
187 #define ES1370_REG_CODEC 0x10
188 #define ES1370_REG_SERIAL_CONTROL 0x20
189 #define ES1370_REG_DAC1_SCOUNT 0x24
190 #define ES1370_REG_DAC2_SCOUNT 0x28
191 #define ES1370_REG_ADC_SCOUNT 0x2c
192
193 #define ES1370_REG_DAC1_FRAMEADR 0xc30
194 #define ES1370_REG_DAC1_FRAMECNT 0xc34
195 #define ES1370_REG_DAC2_FRAMEADR 0xc38
196 #define ES1370_REG_DAC2_FRAMECNT 0xc3c
197 #define ES1370_REG_ADC_FRAMEADR 0xd30
198 #define ES1370_REG_ADC_FRAMECNT 0xd34
199 #define ES1370_REG_PHANTOM_FRAMEADR 0xd38
200 #define ES1370_REG_PHANTOM_FRAMECNT 0xd3c
201
202 #define ES1370_FMT_U8_MONO 0
203 #define ES1370_FMT_U8_STEREO 1
204 #define ES1370_FMT_S16_MONO 2
205 #define ES1370_FMT_S16_STEREO 3
206 #define ES1370_FMT_STEREO 1
207 #define ES1370_FMT_S16 2
208 #define ES1370_FMT_MASK 3
209
210 static const unsigned sample_size[] = { 1, 2, 2, 4 };
211 static const unsigned sample_shift[] = { 0, 1, 1, 2 };
212
213 static const unsigned dac1_samplerate[] = { 5512, 11025, 22050, 44100 };
214
215 #define DAC2_SRTODIV(x) (((1411200+(x)/2)/(x))-2)
216 #define DAC2_DIVTOSR(x) (1411200/((x)+2))
217
218 #define CTRL_ADC_STOP 0x80000000 /* 1 = ADC stopped */
219 #define CTRL_XCTL1 0x40000000 /* electret mic bias */
220 #define CTRL_OPEN 0x20000000 /* no function, can be read and written */
221 #define CTRL_PCLKDIV 0x1fff0000 /* ADC/DAC2 clock divider */
222 #define CTRL_SH_PCLKDIV 16
223 #define CTRL_MSFMTSEL 0x00008000 /* MPEG serial data fmt: 0 = Sony, 1 = I2S */
224 #define CTRL_M_SBB 0x00004000 /* DAC2 clock: 0 = PCLKDIV, 1 = MPEG */
225 #define CTRL_WTSRSEL 0x00003000 /* DAC1 clock freq: 0=5512, 1=11025, 2=22050, 3=44100 */
226 #define CTRL_SH_WTSRSEL 12
227 #define CTRL_DAC_SYNC 0x00000800 /* 1 = DAC2 runs off DAC1 clock */
228 #define CTRL_CCB_INTRM 0x00000400 /* 1 = CCB "voice" ints enabled */
229 #define CTRL_M_CB 0x00000200 /* recording source: 0 = ADC, 1 = MPEG */
230 #define CTRL_XCTL0 0x00000100 /* 0 = Line in, 1 = Line out */
231 #define CTRL_BREQ 0x00000080 /* 1 = test mode (internal mem test) */
232 #define CTRL_DAC1_EN 0x00000040 /* enable DAC1 */
233 #define CTRL_DAC2_EN 0x00000020 /* enable DAC2 */
234 #define CTRL_ADC_EN 0x00000010 /* enable ADC */
235 #define CTRL_UART_EN 0x00000008 /* enable MIDI uart */
236 #define CTRL_JYSTK_EN 0x00000004 /* enable Joystick port (presumably at address 0x200) */
237 #define CTRL_CDC_EN 0x00000002 /* enable serial (CODEC) interface */
238 #define CTRL_SERR_DIS 0x00000001 /* 1 = disable PCI SERR signal */
239
240 #define STAT_INTR 0x80000000 /* wired or of all interrupt bits */
241 #define STAT_CSTAT 0x00000400 /* 1 = codec busy or codec write in progress */
242 #define STAT_CBUSY 0x00000200 /* 1 = codec busy */
243 #define STAT_CWRIP 0x00000100 /* 1 = codec write in progress */
244 #define STAT_VC 0x00000060 /* CCB int source, 0=DAC1, 1=DAC2, 2=ADC, 3=undef */
245 #define STAT_SH_VC 5
246 #define STAT_MCCB 0x00000010 /* CCB int pending */
247 #define STAT_UART 0x00000008 /* UART int pending */
248 #define STAT_DAC1 0x00000004 /* DAC1 int pending */
249 #define STAT_DAC2 0x00000002 /* DAC2 int pending */
250 #define STAT_ADC 0x00000001 /* ADC int pending */
251
252 #define USTAT_RXINT 0x80 /* UART rx int pending */
253 #define USTAT_TXINT 0x04 /* UART tx int pending */
254 #define USTAT_TXRDY 0x02 /* UART tx ready */
255 #define USTAT_RXRDY 0x01 /* UART rx ready */
256
257 #define UCTRL_RXINTEN 0x80 /* 1 = enable RX ints */
258 #define UCTRL_TXINTEN 0x60 /* TX int enable field mask */
259 #define UCTRL_ENA_TXINT 0x20 /* enable TX int */
260 #define UCTRL_CNTRL 0x03 /* control field */
261 #define UCTRL_CNTRL_SWR 0x03 /* software reset command */
262
263 #define SCTRL_P2ENDINC 0x00380000 /* */
264 #define SCTRL_SH_P2ENDINC 19
265 #define SCTRL_P2STINC 0x00070000 /* */
266 #define SCTRL_SH_P2STINC 16
267 #define SCTRL_R1LOOPSEL 0x00008000 /* 0 = loop mode */
268 #define SCTRL_P2LOOPSEL 0x00004000 /* 0 = loop mode */
269 #define SCTRL_P1LOOPSEL 0x00002000 /* 0 = loop mode */
270 #define SCTRL_P2PAUSE 0x00001000 /* 1 = pause mode */
271 #define SCTRL_P1PAUSE 0x00000800 /* 1 = pause mode */
272 #define SCTRL_R1INTEN 0x00000400 /* enable interrupt */
273 #define SCTRL_P2INTEN 0x00000200 /* enable interrupt */
274 #define SCTRL_P1INTEN 0x00000100 /* enable interrupt */
275 #define SCTRL_P1SCTRLD 0x00000080 /* reload sample count register for DAC1 */
276 #define SCTRL_P2DACSEN 0x00000040 /* 1 = DAC2 play back last sample when disabled */
277 #define SCTRL_R1SEB 0x00000020 /* 1 = 16bit */
278 #define SCTRL_R1SMB 0x00000010 /* 1 = stereo */
279 #define SCTRL_R1FMT 0x00000030 /* format mask */
280 #define SCTRL_SH_R1FMT 4
281 #define SCTRL_P2SEB 0x00000008 /* 1 = 16bit */
282 #define SCTRL_P2SMB 0x00000004 /* 1 = stereo */
283 #define SCTRL_P2FMT 0x0000000c /* format mask */
284 #define SCTRL_SH_P2FMT 2
285 #define SCTRL_P1SEB 0x00000002 /* 1 = 16bit */
286 #define SCTRL_P1SMB 0x00000001 /* 1 = stereo */
287 #define SCTRL_P1FMT 0x00000003 /* format mask */
288 #define SCTRL_SH_P1FMT 0
289
290 /* misc stuff */
291
292 #define FMODE_DAC 4 /* slight misuse of mode_t */
293
294 /* MIDI buffer sizes */
295
296 #define MIDIINBUF 256
297 #define MIDIOUTBUF 256
298
299 #define FMODE_MIDI_SHIFT 3
300 #define FMODE_MIDI_READ (FMODE_READ << FMODE_MIDI_SHIFT)
301 #define FMODE_MIDI_WRITE (FMODE_WRITE << FMODE_MIDI_SHIFT)
302
303 #define SND_DEV_DSP16 5
304
305 /* --------------------------------------------------------------------- */
306
307 struct es1370_state {
308 /* magic */
309 unsigned int magic;
310
311 /* list of es1370 devices */
312 struct list_head devs;
313
314 /* the corresponding pci_dev structure */
315 struct pci_dev *dev;
316
317 /* soundcore stuff */
318 int dev_audio;
319 int dev_mixer;
320 int dev_dac;
321 int dev_midi;
322
323 /* hardware resources */
324 unsigned long io; /* long for SPARC */
325 unsigned int irq;
326
327 /* mixer registers; there is no HW readback */
328 struct {
329 unsigned short vol[10];
330 unsigned int recsrc;
331 unsigned int modcnt;
332 unsigned short micpreamp;
333 unsigned int imix;
334 } mix;
335
336 /* wave stuff */
337 unsigned ctrl;
338 unsigned sctrl;
339
340 spinlock_t lock;
341 struct semaphore open_sem;
342 mode_t open_mode;
343 wait_queue_head_t open_wait;
344
345 struct dmabuf {
346 void *rawbuf;
347 dma_addr_t dmaaddr;
348 unsigned buforder;
349 unsigned numfrag;
350 unsigned fragshift;
351 unsigned hwptr, swptr;
352 unsigned total_bytes;
353 int count;
354 unsigned error; /* over/underrun */
355 wait_queue_head_t wait;
356 /* redundant, but makes calculations easier */
357 unsigned fragsize;
358 unsigned dmasize;
359 unsigned fragsamples;
360 /* OSS stuff */
361 unsigned mapped:1;
362 unsigned ready:1;
363 unsigned endcleared:1;
364 unsigned ossfragshift;
365 int ossmaxfrags;
366 unsigned subdivision;
367 } dma_dac1, dma_dac2, dma_adc;
368
369 /* midi stuff */
370 struct {
371 unsigned ird, iwr, icnt;
372 unsigned ord, owr, ocnt;
373 wait_queue_head_t iwait;
374 wait_queue_head_t owait;
375 unsigned char ibuf[MIDIINBUF];
376 unsigned char obuf[MIDIOUTBUF];
377 } midi;
378 };
379
380 /* --------------------------------------------------------------------- */
381
382 static LIST_HEAD(devs);
383
384 /*
385 * The following buffer is used to point the phantom write channel to,
386 * so that it cannot wreak havoc. The attribute makes sure it doesn't
387 * cross a page boundary and ensures dword alignment for the DMA engine
388 */
389 static unsigned char bugbuf[16] __attribute__ ((aligned (16)));
390
391 /* --------------------------------------------------------------------- */
392
393 extern inline unsigned ld2(unsigned int x)
394 {
395 unsigned r = 0;
396
397 if (x >= 0x10000) {
398 x >>= 16;
399 r += 16;
400 }
401 if (x >= 0x100) {
402 x >>= 8;
403 r += 8;
404 }
405 if (x >= 0x10) {
406 x >>= 4;
407 r += 4;
408 }
409 if (x >= 4) {
410 x >>= 2;
411 r += 2;
412 }
413 if (x >= 2)
414 r++;
415 return r;
416 }
417
418 /* --------------------------------------------------------------------- */
419
420 static void wrcodec(struct es1370_state *s, unsigned char idx, unsigned char data)
421 {
422 unsigned long tmo = jiffies + HZ/10;
423
424 do {
425 if (!(inl(s->io+ES1370_REG_STATUS) & STAT_CSTAT)) {
426 outw((((unsigned short)idx)<<8)|data, s->io+ES1370_REG_CODEC);
427 return;
428 }
429 schedule();
430 } while ((signed)(tmo-jiffies) > 0);
431 printk(KERN_ERR "es1370: write to codec register timeout\n");
432 }
433
434 /* --------------------------------------------------------------------- */
435
436 extern inline void stop_adc(struct es1370_state *s)
437 {
438 unsigned long flags;
439
440 spin_lock_irqsave(&s->lock, flags);
441 s->ctrl &= ~CTRL_ADC_EN;
442 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
443 spin_unlock_irqrestore(&s->lock, flags);
444 }
445
446 extern inline void stop_dac1(struct es1370_state *s)
447 {
448 unsigned long flags;
449
450 spin_lock_irqsave(&s->lock, flags);
451 s->ctrl &= ~CTRL_DAC1_EN;
452 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
453 spin_unlock_irqrestore(&s->lock, flags);
454 }
455
456 extern inline void stop_dac2(struct es1370_state *s)
457 {
458 unsigned long flags;
459
460 spin_lock_irqsave(&s->lock, flags);
461 s->ctrl &= ~CTRL_DAC2_EN;
462 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
463 spin_unlock_irqrestore(&s->lock, flags);
464 }
465
466 static void start_dac1(struct es1370_state *s)
467 {
468 unsigned long flags;
469 unsigned fragremain, fshift;
470
471 spin_lock_irqsave(&s->lock, flags);
472 if (!(s->ctrl & CTRL_DAC1_EN) && (s->dma_dac1.mapped || s->dma_dac1.count > 0)
473 && s->dma_dac1.ready) {
474 s->ctrl |= CTRL_DAC1_EN;
475 s->sctrl = (s->sctrl & ~(SCTRL_P1LOOPSEL | SCTRL_P1PAUSE | SCTRL_P1SCTRLD)) | SCTRL_P1INTEN;
476 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
477 fragremain = ((- s->dma_dac1.hwptr) & (s->dma_dac1.fragsize-1));
478 fshift = sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
479 if (fragremain < 2*fshift)
480 fragremain = s->dma_dac1.fragsize;
481 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_DAC1_SCOUNT);
482 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
483 outl((s->dma_dac1.fragsize >> fshift) - 1, s->io+ES1370_REG_DAC1_SCOUNT);
484 }
485 spin_unlock_irqrestore(&s->lock, flags);
486 }
487
488 static void start_dac2(struct es1370_state *s)
489 {
490 unsigned long flags;
491 unsigned fragremain, fshift;
492
493 spin_lock_irqsave(&s->lock, flags);
494 if (!(s->ctrl & CTRL_DAC2_EN) && (s->dma_dac2.mapped || s->dma_dac2.count > 0)
495 && s->dma_dac2.ready) {
496 s->ctrl |= CTRL_DAC2_EN;
497 s->sctrl = (s->sctrl & ~(SCTRL_P2LOOPSEL | SCTRL_P2PAUSE | SCTRL_P2DACSEN |
498 SCTRL_P2ENDINC | SCTRL_P2STINC)) | SCTRL_P2INTEN |
499 (((s->sctrl & SCTRL_P2FMT) ? 2 : 1) << SCTRL_SH_P2ENDINC) |
500 (0 << SCTRL_SH_P2STINC);
501 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
502 fragremain = ((- s->dma_dac2.hwptr) & (s->dma_dac2.fragsize-1));
503 fshift = sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
504 if (fragremain < 2*fshift)
505 fragremain = s->dma_dac2.fragsize;
506 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_DAC2_SCOUNT);
507 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
508 outl((s->dma_dac2.fragsize >> fshift) - 1, s->io+ES1370_REG_DAC2_SCOUNT);
509 }
510 spin_unlock_irqrestore(&s->lock, flags);
511 }
512
513 static void start_adc(struct es1370_state *s)
514 {
515 unsigned long flags;
516 unsigned fragremain, fshift;
517
518 spin_lock_irqsave(&s->lock, flags);
519 if (!(s->ctrl & CTRL_ADC_EN) && (s->dma_adc.mapped || s->dma_adc.count < (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize))
520 && s->dma_adc.ready) {
521 s->ctrl |= CTRL_ADC_EN;
522 s->sctrl = (s->sctrl & ~SCTRL_R1LOOPSEL) | SCTRL_R1INTEN;
523 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
524 fragremain = ((- s->dma_adc.hwptr) & (s->dma_adc.fragsize-1));
525 fshift = sample_shift[(s->sctrl & SCTRL_R1FMT) >> SCTRL_SH_R1FMT];
526 if (fragremain < 2*fshift)
527 fragremain = s->dma_adc.fragsize;
528 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_ADC_SCOUNT);
529 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
530 outl((s->dma_adc.fragsize >> fshift) - 1, s->io+ES1370_REG_ADC_SCOUNT);
531 }
532 spin_unlock_irqrestore(&s->lock, flags);
533 }
534
535 /* --------------------------------------------------------------------- */
536
537 #define DMABUF_DEFAULTORDER (17-PAGE_SHIFT)
538 #define DMABUF_MINORDER 1
539
540 extern inline void dealloc_dmabuf(struct es1370_state *s, struct dmabuf *db)
541 {
542 unsigned long map, mapend;
543
544 if (db->rawbuf) {
545 /* undo marking the pages as reserved */
546 mapend = MAP_NR(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
547 for (map = MAP_NR(db->rawbuf); map <= mapend; map++)
548 clear_bit(PG_reserved, &mem_map[map].flags);
549 pci_free_consistent(s->dev, PAGE_SIZE << db->buforder, db->rawbuf, db->dmaaddr);
550 }
551 db->rawbuf = NULL;
552 db->mapped = db->ready = 0;
553 }
554
555 static int prog_dmabuf(struct es1370_state *s, struct dmabuf *db, unsigned rate, unsigned fmt, unsigned reg)
556 {
557 int order;
558 unsigned bytepersec;
559 unsigned bufs;
560 unsigned long map, mapend;
561
562 db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
563 if (!db->rawbuf) {
564 db->ready = db->mapped = 0;
565 for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--)
566 if ((db->rawbuf = pci_alloc_consistent(s->dev, PAGE_SIZE << order, &db->dmaaddr)))
567 break;
568 if (!db->rawbuf)
569 return -ENOMEM;
570 db->buforder = order;
571 /* now mark the pages as reserved; otherwise remap_page_range doesn't do what we want */
572 mapend = MAP_NR(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
573 for (map = MAP_NR(db->rawbuf); map <= mapend; map++)
574 set_bit(PG_reserved, &mem_map[map].flags);
575 }
576 fmt &= ES1370_FMT_MASK;
577 bytepersec = rate << sample_shift[fmt];
578 bufs = PAGE_SIZE << db->buforder;
579 if (db->ossfragshift) {
580 if ((1000 << db->ossfragshift) < bytepersec)
581 db->fragshift = ld2(bytepersec/1000);
582 else
583 db->fragshift = db->ossfragshift;
584 } else {
585 db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1));
586 if (db->fragshift < 3)
587 db->fragshift = 3;
588 }
589 db->numfrag = bufs >> db->fragshift;
590 while (db->numfrag < 4 && db->fragshift > 3) {
591 db->fragshift--;
592 db->numfrag = bufs >> db->fragshift;
593 }
594 db->fragsize = 1 << db->fragshift;
595 if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
596 db->numfrag = db->ossmaxfrags;
597 db->fragsamples = db->fragsize >> sample_shift[fmt];
598 db->dmasize = db->numfrag << db->fragshift;
599 memset(db->rawbuf, (fmt & ES1370_FMT_S16) ? 0 : 0x80, db->dmasize);
600 outl((reg >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
601 outl(db->dmaaddr, s->io+(reg & 0xff));
602 outl((db->dmasize >> 2)-1, s->io+((reg + 4) & 0xff));
603 db->ready = 1;
604 return 0;
605 }
606
607 extern inline int prog_dmabuf_adc(struct es1370_state *s)
608 {
609 stop_adc(s);
610 return prog_dmabuf(s, &s->dma_adc, DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV),
611 (s->sctrl >> SCTRL_SH_R1FMT) & ES1370_FMT_MASK, ES1370_REG_ADC_FRAMEADR);
612 }
613
614 extern inline int prog_dmabuf_dac2(struct es1370_state *s)
615 {
616 stop_dac2(s);
617 return prog_dmabuf(s, &s->dma_dac2, DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV),
618 (s->sctrl >> SCTRL_SH_P2FMT) & ES1370_FMT_MASK, ES1370_REG_DAC2_FRAMEADR);
619 }
620
621 extern inline int prog_dmabuf_dac1(struct es1370_state *s)
622 {
623 stop_dac1(s);
624 return prog_dmabuf(s, &s->dma_dac1, dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL],
625 (s->sctrl >> SCTRL_SH_P1FMT) & ES1370_FMT_MASK, ES1370_REG_DAC1_FRAMEADR);
626 }
627
628 extern inline unsigned get_hwptr(struct es1370_state *s, struct dmabuf *db, unsigned reg)
629 {
630 unsigned hwptr, diff;
631
632 outl((reg >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
633 hwptr = (inl(s->io+(reg & 0xff)) >> 14) & 0x3fffc;
634 diff = (db->dmasize + hwptr - db->hwptr) % db->dmasize;
635 db->hwptr = hwptr;
636 return diff;
637 }
638
639 extern inline void clear_advance(void *buf, unsigned bsize, unsigned bptr, unsigned len, unsigned char c)
640 {
641 if (bptr + len > bsize) {
642 unsigned x = bsize - bptr;
643 memset(((char *)buf) + bptr, c, x);
644 bptr = 0;
645 len -= x;
646 }
647 memset(((char *)buf) + bptr, c, len);
648 }
649
650 /* call with spinlock held! */
651 static void es1370_update_ptr(struct es1370_state *s)
652 {
653 int diff;
654
655 /* update ADC pointer */
656 if (s->ctrl & CTRL_ADC_EN) {
657 diff = get_hwptr(s, &s->dma_adc, ES1370_REG_ADC_FRAMECNT);
658 s->dma_adc.total_bytes += diff;
659 s->dma_adc.count += diff;
660 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
661 wake_up(&s->dma_adc.wait);
662 if (!s->dma_adc.mapped) {
663 if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) {
664 s->ctrl &= ~CTRL_ADC_EN;
665 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
666 s->dma_adc.error++;
667 }
668 }
669 }
670 /* update DAC1 pointer */
671 if (s->ctrl & CTRL_DAC1_EN) {
672 diff = get_hwptr(s, &s->dma_dac1, ES1370_REG_DAC1_FRAMECNT);
673 s->dma_dac1.total_bytes += diff;
674 if (s->dma_dac1.mapped) {
675 s->dma_dac1.count += diff;
676 if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
677 wake_up(&s->dma_dac1.wait);
678 } else {
679 s->dma_dac1.count -= diff;
680 if (s->dma_dac1.count <= 0) {
681 s->ctrl &= ~CTRL_DAC1_EN;
682 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
683 s->dma_dac1.error++;
684 } else if (s->dma_dac1.count <= (signed)s->dma_dac1.fragsize && !s->dma_dac1.endcleared) {
685 clear_advance(s->dma_dac1.rawbuf, s->dma_dac1.dmasize, s->dma_dac1.swptr,
686 s->dma_dac1.fragsize, (s->sctrl & SCTRL_P1SEB) ? 0 : 0x80);
687 s->dma_dac1.endcleared = 1;
688 }
689 if (s->dma_dac1.count + (signed)s->dma_dac1.fragsize <= (signed)s->dma_dac1.dmasize)
690 wake_up(&s->dma_dac1.wait);
691 }
692 }
693 /* update DAC2 pointer */
694 if (s->ctrl & CTRL_DAC2_EN) {
695 diff = get_hwptr(s, &s->dma_dac2, ES1370_REG_DAC2_FRAMECNT);
696 s->dma_dac2.total_bytes += diff;
697 if (s->dma_dac2.mapped) {
698 s->dma_dac2.count += diff;
699 if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
700 wake_up(&s->dma_dac2.wait);
701 } else {
702 s->dma_dac2.count -= diff;
703 if (s->dma_dac2.count <= 0) {
704 s->ctrl &= ~CTRL_DAC2_EN;
705 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
706 s->dma_dac2.error++;
707 } else if (s->dma_dac2.count <= (signed)s->dma_dac2.fragsize && !s->dma_dac2.endcleared) {
708 clear_advance(s->dma_dac2.rawbuf, s->dma_dac2.dmasize, s->dma_dac2.swptr,
709 s->dma_dac2.fragsize, (s->sctrl & SCTRL_P2SEB) ? 0 : 0x80);
710 s->dma_dac2.endcleared = 1;
711 }
712 if (s->dma_dac2.count + (signed)s->dma_dac2.fragsize <= (signed)s->dma_dac2.dmasize)
713 wake_up(&s->dma_dac2.wait);
714 }
715 }
716 }
717
718 /* hold spinlock for the following! */
719 static void es1370_handle_midi(struct es1370_state *s)
720 {
721 unsigned char ch;
722 int wake;
723
724 if (!(s->ctrl & CTRL_UART_EN))
725 return;
726 wake = 0;
727 while (inb(s->io+ES1370_REG_UART_STATUS) & USTAT_RXRDY) {
728 ch = inb(s->io+ES1370_REG_UART_DATA);
729 if (s->midi.icnt < MIDIINBUF) {
730 s->midi.ibuf[s->midi.iwr] = ch;
731 s->midi.iwr = (s->midi.iwr + 1) % MIDIINBUF;
732 s->midi.icnt++;
733 }
734 wake = 1;
735 }
736 if (wake)
737 wake_up(&s->midi.iwait);
738 wake = 0;
739 while ((inb(s->io+ES1370_REG_UART_STATUS) & USTAT_TXRDY) && s->midi.ocnt > 0) {
740 outb(s->midi.obuf[s->midi.ord], s->io+ES1370_REG_UART_DATA);
741 s->midi.ord = (s->midi.ord + 1) % MIDIOUTBUF;
742 s->midi.ocnt--;
743 if (s->midi.ocnt < MIDIOUTBUF-16)
744 wake = 1;
745 }
746 if (wake)
747 wake_up(&s->midi.owait);
748 outb((s->midi.ocnt > 0) ? UCTRL_RXINTEN | UCTRL_ENA_TXINT : UCTRL_RXINTEN, s->io+ES1370_REG_UART_CONTROL);
749 }
750
751 static void es1370_interrupt(int irq, void *dev_id, struct pt_regs *regs)
752 {
753 struct es1370_state *s = (struct es1370_state *)dev_id;
754 unsigned int intsrc, sctl;
755
756 /* fastpath out, to ease interrupt sharing */
757 intsrc = inl(s->io+ES1370_REG_STATUS);
758 if (!(intsrc & 0x80000000))
759 return;
760 spin_lock(&s->lock);
761 /* clear audio interrupts first */
762 sctl = s->sctrl;
763 if (intsrc & STAT_ADC)
764 sctl &= ~SCTRL_R1INTEN;
765 if (intsrc & STAT_DAC1)
766 sctl &= ~SCTRL_P1INTEN;
767 if (intsrc & STAT_DAC2)
768 sctl &= ~SCTRL_P2INTEN;
769 outl(sctl, s->io+ES1370_REG_SERIAL_CONTROL);
770 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
771 es1370_update_ptr(s);
772 es1370_handle_midi(s);
773 spin_unlock(&s->lock);
774 }
775
776 /* --------------------------------------------------------------------- */
777
778 static const char invalid_magic[] = KERN_CRIT "es1370: invalid magic value\n";
779
780 #define VALIDATE_STATE(s) \
781 ({ \
782 if (!(s) || (s)->magic != ES1370_MAGIC) { \
783 printk(invalid_magic); \
784 return -ENXIO; \
785 } \
786 })
787
788 /* --------------------------------------------------------------------- */
789
790 static const struct {
791 unsigned volidx:4;
792 unsigned left:4;
793 unsigned right:4;
794 unsigned stereo:1;
795 unsigned recmask:13;
796 unsigned avail:1;
797 } mixtable[SOUND_MIXER_NRDEVICES] = {
798 [SOUND_MIXER_VOLUME] = { 0, 0x0, 0x1, 1, 0x0000, 1 }, /* master */
799 [SOUND_MIXER_PCM] = { 1, 0x2, 0x3, 1, 0x0400, 1 }, /* voice */
800 [SOUND_MIXER_SYNTH] = { 2, 0x4, 0x5, 1, 0x0060, 1 }, /* FM */
801 [SOUND_MIXER_CD] = { 3, 0x6, 0x7, 1, 0x0006, 1 }, /* CD */
802 [SOUND_MIXER_LINE] = { 4, 0x8, 0x9, 1, 0x0018, 1 }, /* Line */
803 [SOUND_MIXER_LINE1] = { 5, 0xa, 0xb, 1, 0x1800, 1 }, /* AUX */
804 [SOUND_MIXER_LINE2] = { 6, 0xc, 0x0, 0, 0x0100, 1 }, /* Mono1 */
805 [SOUND_MIXER_LINE3] = { 7, 0xd, 0x0, 0, 0x0200, 1 }, /* Mono2 */
806 [SOUND_MIXER_MIC] = { 8, 0xe, 0x0, 0, 0x0001, 1 }, /* Mic */
807 [SOUND_MIXER_OGAIN] = { 9, 0xf, 0x0, 0, 0x0000, 1 } /* mono out */
808 };
809
810 static void set_recsrc(struct es1370_state *s, unsigned int val)
811 {
812 unsigned int i, j;
813
814 for (j = i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
815 if (!(val & (1 << i)))
816 continue;
817 if (!mixtable[i].recmask) {
818 val &= ~(1 << i);
819 continue;
820 }
821 j |= mixtable[i].recmask;
822 }
823 s->mix.recsrc = val;
824 wrcodec(s, 0x12, j & 0xd5);
825 wrcodec(s, 0x13, j & 0xaa);
826 wrcodec(s, 0x14, (j >> 8) & 0x17);
827 wrcodec(s, 0x15, (j >> 8) & 0x0f);
828 i = (j & 0x37f) | ((j << 1) & 0x3000) | 0xc60;
829 if (!s->mix.imix) {
830 i &= 0xff60; /* mute record and line monitor */
831 }
832 wrcodec(s, 0x10, i);
833 wrcodec(s, 0x11, i >> 8);
834 }
835
836 static int mixer_ioctl(struct es1370_state *s, unsigned int cmd, unsigned long arg)
837 {
838 unsigned long flags;
839 int i, val;
840 unsigned char l, r, rl, rr;
841
842 VALIDATE_STATE(s);
843 if (cmd == SOUND_MIXER_PRIVATE1) {
844 /* enable/disable/query mixer preamp */
845 get_user_ret(val, (int *)arg, -EFAULT);
846 if (val != -1) {
847 s->mix.micpreamp = !!val;
848 wrcodec(s, 0x19, s->mix.micpreamp);
849 }
850 return put_user(s->mix.micpreamp, (int *)arg);
851 }
852 if (cmd == SOUND_MIXER_PRIVATE2) {
853 /* enable/disable/query use of linein as second lineout */
854 get_user_ret(val, (int *)arg, -EFAULT);
855 if (val != -1) {
856 spin_lock_irqsave(&s->lock, flags);
857 if (val)
858 s->ctrl |= CTRL_XCTL0;
859 else
860 s->ctrl &= ~CTRL_XCTL0;
861 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
862 spin_unlock_irqrestore(&s->lock, flags);
863 }
864 return put_user((s->ctrl & CTRL_XCTL0) ? 1 : 0, (int *)arg);
865 }
866 if (cmd == SOUND_MIXER_PRIVATE3) {
867 /* enable/disable/query microphone impedance setting */
868 get_user_ret(val, (int *)arg, -EFAULT);
869 if (val != -1) {
870 spin_lock_irqsave(&s->lock, flags);
871 if (val)
872 s->ctrl |= CTRL_XCTL1;
873 else
874 s->ctrl &= ~CTRL_XCTL1;
875 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
876 spin_unlock_irqrestore(&s->lock, flags);
877 }
878 return put_user((s->ctrl & CTRL_XCTL1) ? 1 : 0, (int *)arg);
879 }
880 if (cmd == SOUND_MIXER_INFO) {
881 mixer_info info;
882 strncpy(info.id, "ES1370", sizeof(info.id));
883 strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
884 info.modify_counter = s->mix.modcnt;
885 if (copy_to_user((void *)arg, &info, sizeof(info)))
886 return -EFAULT;
887 return 0;
888 }
889 if (cmd == SOUND_OLD_MIXER_INFO) {
890 _old_mixer_info info;
891 strncpy(info.id, "ES1370", sizeof(info.id));
892 strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
893 if (copy_to_user((void *)arg, &info, sizeof(info)))
894 return -EFAULT;
895 return 0;
896 }
897 if (cmd == OSS_GETVERSION)
898 return put_user(SOUND_VERSION, (int *)arg);
899 if (_IOC_TYPE(cmd) != 'M' || _IOC_SIZE(cmd) != sizeof(int))
900 return -EINVAL;
901 if (_IOC_DIR(cmd) == _IOC_READ) {
902 switch (_IOC_NR(cmd)) {
903 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
904 return put_user(s->mix.recsrc, (int *)arg);
905
906 case SOUND_MIXER_DEVMASK: /* Arg contains a bit for each supported device */
907 val = SOUND_MASK_IMIX;
908 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
909 if (mixtable[i].avail)
910 val |= 1 << i;
911 return put_user(val, (int *)arg);
912
913 case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
914 for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
915 if (mixtable[i].recmask)
916 val |= 1 << i;
917 return put_user(val, (int *)arg);
918
919 case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
920 for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
921 if (mixtable[i].stereo)
922 val |= 1 << i;
923 return put_user(val, (int *)arg);
924
925 case SOUND_MIXER_CAPS:
926 return put_user(0, (int *)arg);
927
928 case SOUND_MIXER_IMIX:
929 return put_user(s->mix.imix, (int *)arg);
930
931 default:
932 i = _IOC_NR(cmd);
933 if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
934 return -EINVAL;
935 return put_user(s->mix.vol[mixtable[i].volidx], (int *)arg);
936 }
937 }
938 if (_IOC_DIR(cmd) != (_IOC_READ|_IOC_WRITE))
939 return -EINVAL;
940 s->mix.modcnt++;
941 switch (_IOC_NR(cmd)) {
942
943 case SOUND_MIXER_IMIX:
944 get_user_ret(s->mix.imix, (int *)arg, -EFAULT);
945 set_recsrc(s, s->mix.recsrc);
946 return 0;
947
948 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
949 get_user_ret(val, (int *)arg, -EFAULT);
950 set_recsrc(s, val);
951 return 0;
952
953 default:
954 i = _IOC_NR(cmd);
955 if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
956 return -EINVAL;
957 get_user_ret(val, (int *)arg, -EFAULT);
958 l = val & 0xff;
959 if (l > 100)
960 l = 100;
961 if (mixtable[i].stereo) {
962 r = (val >> 8) & 0xff;
963 if (r > 100)
964 r = 100;
965 if (l < 7) {
966 rl = 0x80;
967 l = 0;
968 } else {
969 rl = 31 - ((l - 7) / 3);
970 l = (31 - rl) * 3 + 7;
971 }
972 if (r < 7) {
973 rr = 0x80;
974 r = 0;
975 } else {
976 rr = 31 - ((r - 7) / 3);
977 r = (31 - rr) * 3 + 7;
978 }
979 wrcodec(s, mixtable[i].right, rr);
980 } else {
981 if (mixtable[i].left == 15) {
982 if (l < 2) {
983 rr = rl = 0x80;
984 r = l = 0;
985 } else {
986 rl = 7 - ((l - 2) / 14);
987 r = l = (7 - rl) * 14 + 2;
988 }
989 } else {
990 if (l < 7) {
991 rl = 0x80;
992 r = l = 0;
993 } else {
994 rl = 31 - ((l - 7) / 3);
995 r = l = (31 - rl) * 3 + 7;
996 }
997 }
998 }
999 wrcodec(s, mixtable[i].left, rl);
1000 #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
1001 s->mix.vol[mixtable[i].volidx] = ((unsigned int)r << 8) | l;
1002 #else
1003 s->mix.vol[mixtable[i].volidx] = val;
1004 #endif
1005 return put_user(s->mix.vol[mixtable[i].volidx], (int *)arg);
1006 }
1007 }
1008
1009 /* --------------------------------------------------------------------- */
1010
1011 static loff_t es1370_llseek(struct file *file, loff_t offset, int origin)
1012 {
1013 return -ESPIPE;
1014 }
1015
1016 /* --------------------------------------------------------------------- */
1017
1018 static int es1370_open_mixdev(struct inode *inode, struct file *file)
1019 {
1020 int minor = MINOR(inode->i_rdev);
1021 struct list_head *list;
1022 struct es1370_state *s;
1023
1024 for (list = devs.next; ; list = list->next) {
1025 if (list == &devs)
1026 return -ENODEV;
1027 s = list_entry(list, struct es1370_state, devs);
1028 if (s->dev_mixer == minor)
1029 break;
1030 }
1031 VALIDATE_STATE(s);
1032 file->private_data = s;
1033 MOD_INC_USE_COUNT;
1034 return 0;
1035 }
1036
1037 static int es1370_release_mixdev(struct inode *inode, struct file *file)
1038 {
1039 struct es1370_state *s = (struct es1370_state *)file->private_data;
1040
1041 VALIDATE_STATE(s);
1042 MOD_DEC_USE_COUNT;
1043 return 0;
1044 }
1045
1046 static int es1370_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1047 {
1048 return mixer_ioctl((struct es1370_state *)file->private_data, cmd, arg);
1049 }
1050
1051 static /*const*/ struct file_operations es1370_mixer_fops = {
1052 llseek: es1370_llseek,
1053 ioctl: es1370_ioctl_mixdev,
1054 open: es1370_open_mixdev,
1055 release: es1370_release_mixdev,
1056 };
1057
1058 /* --------------------------------------------------------------------- */
1059
1060 static int drain_dac1(struct es1370_state *s, int nonblock)
1061 {
1062 DECLARE_WAITQUEUE(wait, current);
1063 unsigned long flags;
1064 int count, tmo;
1065
1066 if (s->dma_dac1.mapped || !s->dma_dac1.ready)
1067 return 0;
1068 add_wait_queue(&s->dma_dac1.wait, &wait);
1069 for (;;) {
1070 __set_current_state(TASK_INTERRUPTIBLE);
1071 spin_lock_irqsave(&s->lock, flags);
1072 count = s->dma_dac1.count;
1073 spin_unlock_irqrestore(&s->lock, flags);
1074 if (count <= 0)
1075 break;
1076 if (signal_pending(current))
1077 break;
1078 if (nonblock) {
1079 remove_wait_queue(&s->dma_dac1.wait, &wait);
1080 set_current_state(TASK_RUNNING);
1081 return -EBUSY;
1082 }
1083 tmo = 3 * HZ * (count + s->dma_dac1.fragsize) / 2
1084 / dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL];
1085 tmo >>= sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
1086 if (!schedule_timeout(tmo + 1))
1087 DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
1088 }
1089 remove_wait_queue(&s->dma_dac1.wait, &wait);
1090 set_current_state(TASK_RUNNING);
1091 if (signal_pending(current))
1092 return -ERESTARTSYS;
1093 return 0;
1094 }
1095
1096 static int drain_dac2(struct es1370_state *s, int nonblock)
1097 {
1098 DECLARE_WAITQUEUE(wait, current);
1099 unsigned long flags;
1100 int count, tmo;
1101
1102 if (s->dma_dac2.mapped || !s->dma_dac2.ready)
1103 return 0;
1104 add_wait_queue(&s->dma_dac2.wait, &wait);
1105 for (;;) {
1106 __set_current_state(TASK_INTERRUPTIBLE);
1107 spin_lock_irqsave(&s->lock, flags);
1108 count = s->dma_dac2.count;
1109 spin_unlock_irqrestore(&s->lock, flags);
1110 if (count <= 0)
1111 break;
1112 if (signal_pending(current))
1113 break;
1114 if (nonblock) {
1115 remove_wait_queue(&s->dma_dac2.wait, &wait);
1116 set_current_state(TASK_RUNNING);
1117 return -EBUSY;
1118 }
1119 tmo = 3 * HZ * (count + s->dma_dac2.fragsize) / 2
1120 / DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV);
1121 tmo >>= sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
1122 if (!schedule_timeout(tmo + 1))
1123 DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
1124 }
1125 remove_wait_queue(&s->dma_dac2.wait, &wait);
1126 set_current_state(TASK_RUNNING);
1127 if (signal_pending(current))
1128 return -ERESTARTSYS;
1129 return 0;
1130 }
1131
1132 /* --------------------------------------------------------------------- */
1133
1134 static ssize_t es1370_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
1135 {
1136 struct es1370_state *s = (struct es1370_state *)file->private_data;
1137 DECLARE_WAITQUEUE(wait, current);
1138 ssize_t ret;
1139 unsigned long flags;
1140 unsigned swptr;
1141 int cnt;
1142
1143 VALIDATE_STATE(s);
1144 if (ppos != &file->f_pos)
1145 return -ESPIPE;
1146 if (s->dma_adc.mapped)
1147 return -ENXIO;
1148 if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
1149 return ret;
1150 if (!access_ok(VERIFY_WRITE, buffer, count))
1151 return -EFAULT;
1152 ret = 0;
1153 add_wait_queue(&s->dma_adc.wait, &wait);
1154 while (count > 0) {
1155 spin_lock_irqsave(&s->lock, flags);
1156 swptr = s->dma_adc.swptr;
1157 cnt = s->dma_adc.dmasize-swptr;
1158 if (s->dma_adc.count < cnt)
1159 cnt = s->dma_adc.count;
1160 if (cnt <= 0)
1161 __set_current_state(TASK_INTERRUPTIBLE);
1162 spin_unlock_irqrestore(&s->lock, flags);
1163 if (cnt > count)
1164 cnt = count;
1165 if (cnt <= 0) {
1166 start_adc(s);
1167 if (file->f_flags & O_NONBLOCK) {
1168 if (!ret)
1169 ret = -EAGAIN;
1170 break;
1171 }
1172 schedule();
1173 if (signal_pending(current)) {
1174 if (!ret)
1175 ret = -ERESTARTSYS;
1176 break;
1177 }
1178 continue;
1179 }
1180 if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt)) {
1181 if (!ret)
1182 ret = -EFAULT;
1183 break;
1184 }
1185 swptr = (swptr + cnt) % s->dma_adc.dmasize;
1186 spin_lock_irqsave(&s->lock, flags);
1187 s->dma_adc.swptr = swptr;
1188 s->dma_adc.count -= cnt;
1189 spin_unlock_irqrestore(&s->lock, flags);
1190 count -= cnt;
1191 buffer += cnt;
1192 ret += cnt;
1193 start_adc(s);
1194 }
1195 remove_wait_queue(&s->dma_adc.wait, &wait);
1196 set_current_state(TASK_RUNNING);
1197 return ret;
1198 }
1199
1200 static ssize_t es1370_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
1201 {
1202 struct es1370_state *s = (struct es1370_state *)file->private_data;
1203 DECLARE_WAITQUEUE(wait, current);
1204 ssize_t ret;
1205 unsigned long flags;
1206 unsigned swptr;
1207 int cnt;
1208
1209 VALIDATE_STATE(s);
1210 if (ppos != &file->f_pos)
1211 return -ESPIPE;
1212 if (s->dma_dac2.mapped)
1213 return -ENXIO;
1214 if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
1215 return ret;
1216 if (!access_ok(VERIFY_READ, buffer, count))
1217 return -EFAULT;
1218 ret = 0;
1219 add_wait_queue(&s->dma_dac2.wait, &wait);
1220 while (count > 0) {
1221 spin_lock_irqsave(&s->lock, flags);
1222 if (s->dma_dac2.count < 0) {
1223 s->dma_dac2.count = 0;
1224 s->dma_dac2.swptr = s->dma_dac2.hwptr;
1225 }
1226 swptr = s->dma_dac2.swptr;
1227 cnt = s->dma_dac2.dmasize-swptr;
1228 if (s->dma_dac2.count + cnt > s->dma_dac2.dmasize)
1229 cnt = s->dma_dac2.dmasize - s->dma_dac2.count;
1230 if (cnt <= 0)
1231 __set_current_state(TASK_INTERRUPTIBLE);
1232 spin_unlock_irqrestore(&s->lock, flags);
1233 if (cnt > count)
1234 cnt = count;
1235 if (cnt <= 0) {
1236 start_dac2(s);
1237 if (file->f_flags & O_NONBLOCK) {
1238 if (!ret)
1239 ret = -EAGAIN;
1240 break;
1241 }
1242 schedule();
1243 if (signal_pending(current)) {
1244 if (!ret)
1245 ret = -ERESTARTSYS;
1246 break;
1247 }
1248 continue;
1249 }
1250 if (copy_from_user(s->dma_dac2.rawbuf + swptr, buffer, cnt)) {
1251 if (!ret)
1252 ret = -EFAULT;
1253 break;
1254 }
1255 swptr = (swptr + cnt) % s->dma_dac2.dmasize;
1256 spin_lock_irqsave(&s->lock, flags);
1257 s->dma_dac2.swptr = swptr;
1258 s->dma_dac2.count += cnt;
1259 s->dma_dac2.endcleared = 0;
1260 spin_unlock_irqrestore(&s->lock, flags);
1261 count -= cnt;
1262 buffer += cnt;
1263 ret += cnt;
1264 start_dac2(s);
1265 }
1266 remove_wait_queue(&s->dma_dac2.wait, &wait);
1267 set_current_state(TASK_RUNNING);
1268 return ret;
1269 }
1270
1271 /* No kernel lock - we have our own spinlock */
1272 static unsigned int es1370_poll(struct file *file, struct poll_table_struct *wait)
1273 {
1274 struct es1370_state *s = (struct es1370_state *)file->private_data;
1275 unsigned long flags;
1276 unsigned int mask = 0;
1277
1278 VALIDATE_STATE(s);
1279 if (file->f_mode & FMODE_WRITE)
1280 poll_wait(file, &s->dma_dac2.wait, wait);
1281 if (file->f_mode & FMODE_READ)
1282 poll_wait(file, &s->dma_adc.wait, wait);
1283 spin_lock_irqsave(&s->lock, flags);
1284 es1370_update_ptr(s);
1285 if (file->f_mode & FMODE_READ) {
1286 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
1287 mask |= POLLIN | POLLRDNORM;
1288 }
1289 if (file->f_mode & FMODE_WRITE) {
1290 if (s->dma_dac2.mapped) {
1291 if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
1292 mask |= POLLOUT | POLLWRNORM;
1293 } else {
1294 if ((signed)s->dma_dac2.dmasize >= s->dma_dac2.count + (signed)s->dma_dac2.fragsize)
1295 mask |= POLLOUT | POLLWRNORM;
1296 }
1297 }
1298 spin_unlock_irqrestore(&s->lock, flags);
1299 return mask;
1300 }
1301
1302 static int es1370_mmap(struct file *file, struct vm_area_struct *vma)
1303 {
1304 struct es1370_state *s = (struct es1370_state *)file->private_data;
1305 struct dmabuf *db;
1306 int ret;
1307 unsigned long size;
1308
1309 VALIDATE_STATE(s);
1310 if (vma->vm_flags & VM_WRITE) {
1311 if ((ret = prog_dmabuf_dac2(s)) != 0)
1312 return ret;
1313 db = &s->dma_dac2;
1314 } else if (vma->vm_flags & VM_READ) {
1315 if ((ret = prog_dmabuf_adc(s)) != 0)
1316 return ret;
1317 db = &s->dma_adc;
1318 } else
1319 return -EINVAL;
1320 if (vma->vm_pgoff != 0)
1321 return -EINVAL;
1322 size = vma->vm_end - vma->vm_start;
1323 if (size > (PAGE_SIZE << db->buforder))
1324 return -EINVAL;
1325 if (remap_page_range(vma->vm_start, virt_to_phys(db->rawbuf), size, vma->vm_page_prot))
1326 return -EAGAIN;
1327 db->mapped = 1;
1328 return 0;
1329 }
1330
1331 static int es1370_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1332 {
1333 struct es1370_state *s = (struct es1370_state *)file->private_data;
1334 unsigned long flags;
1335 audio_buf_info abinfo;
1336 count_info cinfo;
1337 int count;
1338 int val, mapped, ret;
1339
1340 VALIDATE_STATE(s);
1341 mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac2.mapped) ||
1342 ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
1343 switch (cmd) {
1344 case OSS_GETVERSION:
1345 return put_user(SOUND_VERSION, (int *)arg);
1346
1347 case SNDCTL_DSP_SYNC:
1348 if (file->f_mode & FMODE_WRITE)
1349 return drain_dac2(s, 0/*file->f_flags & O_NONBLOCK*/);
1350 return 0;
1351
1352 case SNDCTL_DSP_SETDUPLEX:
1353 return 0;
1354
1355 case SNDCTL_DSP_GETCAPS:
1356 return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg);
1357
1358 case SNDCTL_DSP_RESET:
1359 if (file->f_mode & FMODE_WRITE) {
1360 stop_dac2(s);
1361 synchronize_irq();
1362 s->dma_dac2.swptr = s->dma_dac2.hwptr = s->dma_dac2.count = s->dma_dac2.total_bytes = 0;
1363 }
1364 if (file->f_mode & FMODE_READ) {
1365 stop_adc(s);
1366 synchronize_irq();
1367 s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
1368 }
1369 return 0;
1370
1371 case SNDCTL_DSP_SPEED:
1372 get_user_ret(val, (int *)arg, -EFAULT);
1373 if (val >= 0) {
1374 if (s->open_mode & (~file->f_mode) & (FMODE_READ|FMODE_WRITE))
1375 return -EINVAL;
1376 if (val < 4000)
1377 val = 4000;
1378 if (val > 50000)
1379 val = 50000;
1380 stop_adc(s);
1381 stop_dac2(s);
1382 s->dma_adc.ready = s->dma_dac2.ready = 0;
1383 spin_lock_irqsave(&s->lock, flags);
1384 s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(val) << CTRL_SH_PCLKDIV);
1385 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1386 spin_unlock_irqrestore(&s->lock, flags);
1387 }
1388 return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), (int *)arg);
1389
1390 case SNDCTL_DSP_STEREO:
1391 get_user_ret(val, (int *)arg, -EFAULT);
1392 if (file->f_mode & FMODE_READ) {
1393 stop_adc(s);
1394 s->dma_adc.ready = 0;
1395 spin_lock_irqsave(&s->lock, flags);
1396 if (val)
1397 s->sctrl |= SCTRL_R1SMB;
1398 else
1399 s->sctrl &= ~SCTRL_R1SMB;
1400 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1401 spin_unlock_irqrestore(&s->lock, flags);
1402 }
1403 if (file->f_mode & FMODE_WRITE) {
1404 stop_dac2(s);
1405 s->dma_dac2.ready = 0;
1406 spin_lock_irqsave(&s->lock, flags);
1407 if (val)
1408 s->sctrl |= SCTRL_P2SMB;
1409 else
1410 s->sctrl &= ~SCTRL_P2SMB;
1411 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1412 spin_unlock_irqrestore(&s->lock, flags);
1413 }
1414 return 0;
1415
1416 case SNDCTL_DSP_CHANNELS:
1417 get_user_ret(val, (int *)arg, -EFAULT);
1418 if (val != 0) {
1419 if (file->f_mode & FMODE_READ) {
1420 stop_adc(s);
1421 s->dma_adc.ready = 0;
1422 spin_lock_irqsave(&s->lock, flags);
1423 if (val >= 2)
1424 s->sctrl |= SCTRL_R1SMB;
1425 else
1426 s->sctrl &= ~SCTRL_R1SMB;
1427 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1428 spin_unlock_irqrestore(&s->lock, flags);
1429 }
1430 if (file->f_mode & FMODE_WRITE) {
1431 stop_dac2(s);
1432 s->dma_dac2.ready = 0;
1433 spin_lock_irqsave(&s->lock, flags);
1434 if (val >= 2)
1435 s->sctrl |= SCTRL_P2SMB;
1436 else
1437 s->sctrl &= ~SCTRL_P2SMB;
1438 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1439 spin_unlock_irqrestore(&s->lock, flags);
1440 }
1441 }
1442 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ? 2 : 1, (int *)arg);
1443
1444 case SNDCTL_DSP_GETFMTS: /* Returns a mask */
1445 return put_user(AFMT_S16_LE|AFMT_U8, (int *)arg);
1446
1447 case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
1448 get_user_ret(val, (int *)arg, -EFAULT);
1449 if (val != AFMT_QUERY) {
1450 if (file->f_mode & FMODE_READ) {
1451 stop_adc(s);
1452 s->dma_adc.ready = 0;
1453 spin_lock_irqsave(&s->lock, flags);
1454 if (val == AFMT_S16_LE)
1455 s->sctrl |= SCTRL_R1SEB;
1456 else
1457 s->sctrl &= ~SCTRL_R1SEB;
1458 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1459 spin_unlock_irqrestore(&s->lock, flags);
1460 }
1461 if (file->f_mode & FMODE_WRITE) {
1462 stop_dac2(s);
1463 s->dma_dac2.ready = 0;
1464 spin_lock_irqsave(&s->lock, flags);
1465 if (val == AFMT_S16_LE)
1466 s->sctrl |= SCTRL_P2SEB;
1467 else
1468 s->sctrl &= ~SCTRL_P2SEB;
1469 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1470 spin_unlock_irqrestore(&s->lock, flags);
1471 }
1472 }
1473 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
1474 AFMT_S16_LE : AFMT_U8, (int *)arg);
1475
1476 case SNDCTL_DSP_POST:
1477 return 0;
1478
1479 case SNDCTL_DSP_GETTRIGGER:
1480 val = 0;
1481 if (file->f_mode & FMODE_READ && s->ctrl & CTRL_ADC_EN)
1482 val |= PCM_ENABLE_INPUT;
1483 if (file->f_mode & FMODE_WRITE && s->ctrl & CTRL_DAC2_EN)
1484 val |= PCM_ENABLE_OUTPUT;
1485 return put_user(val, (int *)arg);
1486
1487 case SNDCTL_DSP_SETTRIGGER:
1488 get_user_ret(val, (int *)arg, -EFAULT);
1489 if (file->f_mode & FMODE_READ) {
1490 if (val & PCM_ENABLE_INPUT) {
1491 if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
1492 return ret;
1493 start_adc(s);
1494 } else
1495 stop_adc(s);
1496 }
1497 if (file->f_mode & FMODE_WRITE) {
1498 if (val & PCM_ENABLE_OUTPUT) {
1499 if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
1500 return ret;
1501 start_dac2(s);
1502 } else
1503 stop_dac2(s);
1504 }
1505 return 0;
1506
1507 case SNDCTL_DSP_GETOSPACE:
1508 if (!(file->f_mode & FMODE_WRITE))
1509 return -EINVAL;
1510 if (!(s->ctrl & CTRL_DAC2_EN) && (val = prog_dmabuf_dac2(s)) != 0)
1511 return val;
1512 spin_lock_irqsave(&s->lock, flags);
1513 es1370_update_ptr(s);
1514 abinfo.fragsize = s->dma_dac2.fragsize;
1515 count = s->dma_dac2.count;
1516 if (count < 0)
1517 count = 0;
1518 abinfo.bytes = s->dma_dac2.dmasize - count;
1519 abinfo.fragstotal = s->dma_dac2.numfrag;
1520 abinfo.fragments = abinfo.bytes >> s->dma_dac2.fragshift;
1521 spin_unlock_irqrestore(&s->lock, flags);
1522 return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1523
1524 case SNDCTL_DSP_GETISPACE:
1525 if (!(file->f_mode & FMODE_READ))
1526 return -EINVAL;
1527 if (!(s->ctrl & CTRL_ADC_EN) && (val = prog_dmabuf_adc(s)) != 0)
1528 return val;
1529 spin_lock_irqsave(&s->lock, flags);
1530 es1370_update_ptr(s);
1531 abinfo.fragsize = s->dma_adc.fragsize;
1532 count = s->dma_adc.count;
1533 if (count < 0)
1534 count = 0;
1535 abinfo.bytes = count;
1536 abinfo.fragstotal = s->dma_adc.numfrag;
1537 abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
1538 spin_unlock_irqrestore(&s->lock, flags);
1539 return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1540
1541 case SNDCTL_DSP_NONBLOCK:
1542 file->f_flags |= O_NONBLOCK;
1543 return 0;
1544
1545 case SNDCTL_DSP_GETODELAY:
1546 if (!(file->f_mode & FMODE_WRITE))
1547 return -EINVAL;
1548 spin_lock_irqsave(&s->lock, flags);
1549 es1370_update_ptr(s);
1550 count = s->dma_dac2.count;
1551 spin_unlock_irqrestore(&s->lock, flags);
1552 if (count < 0)
1553 count = 0;
1554 return put_user(count, (int *)arg);
1555
1556 case SNDCTL_DSP_GETIPTR:
1557 if (!(file->f_mode & FMODE_READ))
1558 return -EINVAL;
1559 spin_lock_irqsave(&s->lock, flags);
1560 es1370_update_ptr(s);
1561 cinfo.bytes = s->dma_adc.total_bytes;
1562 count = s->dma_adc.count;
1563 if (count < 0)
1564 count = 0;
1565 cinfo.blocks = count >> s->dma_adc.fragshift;
1566 cinfo.ptr = s->dma_adc.hwptr;
1567 if (s->dma_adc.mapped)
1568 s->dma_adc.count &= s->dma_adc.fragsize-1;
1569 spin_unlock_irqrestore(&s->lock, flags);
1570 return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
1571
1572 case SNDCTL_DSP_GETOPTR:
1573 if (!(file->f_mode & FMODE_WRITE))
1574 return -EINVAL;
1575 spin_lock_irqsave(&s->lock, flags);
1576 es1370_update_ptr(s);
1577 cinfo.bytes = s->dma_dac2.total_bytes;
1578 count = s->dma_dac2.count;
1579 if (count < 0)
1580 count = 0;
1581 cinfo.blocks = count >> s->dma_dac2.fragshift;
1582 cinfo.ptr = s->dma_dac2.hwptr;
1583 if (s->dma_dac2.mapped)
1584 s->dma_dac2.count &= s->dma_dac2.fragsize-1;
1585 spin_unlock_irqrestore(&s->lock, flags);
1586 return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
1587
1588 case SNDCTL_DSP_GETBLKSIZE:
1589 if (file->f_mode & FMODE_WRITE) {
1590 if ((val = prog_dmabuf_dac2(s)))
1591 return val;
1592 return put_user(s->dma_dac2.fragsize, (int *)arg);
1593 }
1594 if ((val = prog_dmabuf_adc(s)))
1595 return val;
1596 return put_user(s->dma_adc.fragsize, (int *)arg);
1597
1598 case SNDCTL_DSP_SETFRAGMENT:
1599 get_user_ret(val, (int *)arg, -EFAULT);
1600 if (file->f_mode & FMODE_READ) {
1601 s->dma_adc.ossfragshift = val & 0xffff;
1602 s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
1603 if (s->dma_adc.ossfragshift < 4)
1604 s->dma_adc.ossfragshift = 4;
1605 if (s->dma_adc.ossfragshift > 15)
1606 s->dma_adc.ossfragshift = 15;
1607 if (s->dma_adc.ossmaxfrags < 4)
1608 s->dma_adc.ossmaxfrags = 4;
1609 }
1610 if (file->f_mode & FMODE_WRITE) {
1611 s->dma_dac2.ossfragshift = val & 0xffff;
1612 s->dma_dac2.ossmaxfrags = (val >> 16) & 0xffff;
1613 if (s->dma_dac2.ossfragshift < 4)
1614 s->dma_dac2.ossfragshift = 4;
1615 if (s->dma_dac2.ossfragshift > 15)
1616 s->dma_dac2.ossfragshift = 15;
1617 if (s->dma_dac2.ossmaxfrags < 4)
1618 s->dma_dac2.ossmaxfrags = 4;
1619 }
1620 return 0;
1621
1622 case SNDCTL_DSP_SUBDIVIDE:
1623 if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
1624 (file->f_mode & FMODE_WRITE && s->dma_dac2.subdivision))
1625 return -EINVAL;
1626 get_user_ret(val, (int *)arg, -EFAULT);
1627 if (val != 1 && val != 2 && val != 4)
1628 return -EINVAL;
1629 if (file->f_mode & FMODE_READ)
1630 s->dma_adc.subdivision = val;
1631 if (file->f_mode & FMODE_WRITE)
1632 s->dma_dac2.subdivision = val;
1633 return 0;
1634
1635 case SOUND_PCM_READ_RATE:
1636 return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), (int *)arg);
1637
1638 case SOUND_PCM_READ_CHANNELS:
1639 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ?
1640 2 : 1, (int *)arg);
1641
1642 case SOUND_PCM_READ_BITS:
1643 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
1644 16 : 8, (int *)arg);
1645
1646 case SOUND_PCM_WRITE_FILTER:
1647 case SNDCTL_DSP_SETSYNCRO:
1648 case SOUND_PCM_READ_FILTER:
1649 return -EINVAL;
1650
1651 }
1652 return mixer_ioctl(s, cmd, arg);
1653 }
1654
1655 static int es1370_open(struct inode *inode, struct file *file)
1656 {
1657 int minor = MINOR(inode->i_rdev);
1658 DECLARE_WAITQUEUE(wait, current);
1659 unsigned long flags;
1660 struct list_head *list;
1661 struct es1370_state *s;
1662
1663 for (list = devs.next; ; list = list->next) {
1664 if (list == &devs)
1665 return -ENODEV;
1666 s = list_entry(list, struct es1370_state, devs);
1667 if (!((s->dev_audio ^ minor) & ~0xf))
1668 break;
1669 }
1670 VALIDATE_STATE(s);
1671 file->private_data = s;
1672 /* wait for device to become free */
1673 down(&s->open_sem);
1674 while (s->open_mode & file->f_mode) {
1675 if (file->f_flags & O_NONBLOCK) {
1676 up(&s->open_sem);
1677 return -EBUSY;
1678 }
1679 add_wait_queue(&s->open_wait, &wait);
1680 __set_current_state(TASK_INTERRUPTIBLE);
1681 up(&s->open_sem);
1682 schedule();
1683 remove_wait_queue(&s->open_wait, &wait);
1684 set_current_state(TASK_RUNNING);
1685 if (signal_pending(current))
1686 return -ERESTARTSYS;
1687 down(&s->open_sem);
1688 }
1689 spin_lock_irqsave(&s->lock, flags);
1690 if (!(s->open_mode & (FMODE_READ|FMODE_WRITE)))
1691 s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV);
1692 if (file->f_mode & FMODE_READ) {
1693 s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
1694 s->sctrl &= ~SCTRL_R1FMT;
1695 if ((minor & 0xf) == SND_DEV_DSP16)
1696 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_R1FMT;
1697 else
1698 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_R1FMT;
1699 }
1700 if (file->f_mode & FMODE_WRITE) {
1701 s->dma_dac2.ossfragshift = s->dma_dac2.ossmaxfrags = s->dma_dac2.subdivision = 0;
1702 s->sctrl &= ~SCTRL_P2FMT;
1703 if ((minor & 0xf) == SND_DEV_DSP16)
1704 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P2FMT;
1705 else
1706 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P2FMT;
1707 }
1708 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1709 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1710 spin_unlock_irqrestore(&s->lock, flags);
1711 s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
1712 up(&s->open_sem);
1713 MOD_INC_USE_COUNT;
1714 return 0;
1715 }
1716
1717 static int es1370_release(struct inode *inode, struct file *file)
1718 {
1719 struct es1370_state *s = (struct es1370_state *)file->private_data;
1720
1721 VALIDATE_STATE(s);
1722 if (file->f_mode & FMODE_WRITE)
1723 drain_dac2(s, file->f_flags & O_NONBLOCK);
1724 down(&s->open_sem);
1725 if (file->f_mode & FMODE_WRITE) {
1726 stop_dac2(s);
1727 synchronize_irq();
1728 dealloc_dmabuf(s, &s->dma_dac2);
1729 }
1730 if (file->f_mode & FMODE_READ) {
1731 stop_adc(s);
1732 dealloc_dmabuf(s, &s->dma_adc);
1733 }
1734 s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
1735 wake_up(&s->open_wait);
1736 up(&s->open_sem);
1737 MOD_DEC_USE_COUNT;
1738 return 0;
1739 }
1740
1741 static /*const*/ struct file_operations es1370_audio_fops = {
1742 llseek: es1370_llseek,
1743 read: es1370_read,
1744 write: es1370_write,
1745 poll: es1370_poll,
1746 ioctl: es1370_ioctl,
1747 mmap: es1370_mmap,
1748 open: es1370_open,
1749 release: es1370_release,
1750 };
1751
1752 /* --------------------------------------------------------------------- */
1753
1754 static ssize_t es1370_write_dac(struct file *file, const char *buffer, size_t count, loff_t *ppos)
1755 {
1756 struct es1370_state *s = (struct es1370_state *)file->private_data;
1757 DECLARE_WAITQUEUE(wait, current);
1758 ssize_t ret = 0;
1759 unsigned long flags;
1760 unsigned swptr;
1761 int cnt;
1762
1763 VALIDATE_STATE(s);
1764 if (ppos != &file->f_pos)
1765 return -ESPIPE;
1766 if (s->dma_dac1.mapped)
1767 return -ENXIO;
1768 if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
1769 return ret;
1770 if (!access_ok(VERIFY_READ, buffer, count))
1771 return -EFAULT;
1772 add_wait_queue(&s->dma_dac1.wait, &wait);
1773 while (count > 0) {
1774 spin_lock_irqsave(&s->lock, flags);
1775 if (s->dma_dac1.count < 0) {
1776 s->dma_dac1.count = 0;
1777 s->dma_dac1.swptr = s->dma_dac1.hwptr;
1778 }
1779 swptr = s->dma_dac1.swptr;
1780 cnt = s->dma_dac1.dmasize-swptr;
1781 if (s->dma_dac1.count + cnt > s->dma_dac1.dmasize)
1782 cnt = s->dma_dac1.dmasize - s->dma_dac1.count;
1783 if (cnt <= 0)
1784 __set_current_state(TASK_INTERRUPTIBLE);
1785 spin_unlock_irqrestore(&s->lock, flags);
1786 if (cnt > count)
1787 cnt = count;
1788 if (cnt <= 0) {
1789 start_dac1(s);
1790 if (file->f_flags & O_NONBLOCK) {
1791 if (!ret)
1792 ret = -EAGAIN;
1793 break;
1794 }
1795 schedule();
1796 if (signal_pending(current)) {
1797 if (!ret)
1798 ret = -ERESTARTSYS;
1799 break;
1800 }
1801 continue;
1802 }
1803 if (copy_from_user(s->dma_dac1.rawbuf + swptr, buffer, cnt)) {
1804 if (!ret)
1805 ret = -EFAULT;
1806 break;
1807 }
1808 swptr = (swptr + cnt) % s->dma_dac1.dmasize;
1809 spin_lock_irqsave(&s->lock, flags);
1810 s->dma_dac1.swptr = swptr;
1811 s->dma_dac1.count += cnt;
1812 s->dma_dac1.endcleared = 0;
1813 spin_unlock_irqrestore(&s->lock, flags);
1814 count -= cnt;
1815 buffer += cnt;
1816 ret += cnt;
1817 start_dac1(s);
1818 }
1819 remove_wait_queue(&s->dma_dac1.wait, &wait);
1820 set_current_state(TASK_RUNNING);
1821 return ret;
1822 }
1823
1824 /* No kernel lock - we have our own spinlock */
1825 static unsigned int es1370_poll_dac(struct file *file, struct poll_table_struct *wait)
1826 {
1827 struct es1370_state *s = (struct es1370_state *)file->private_data;
1828 unsigned long flags;
1829 unsigned int mask = 0;
1830
1831 VALIDATE_STATE(s);
1832 poll_wait(file, &s->dma_dac1.wait, wait);
1833 spin_lock_irqsave(&s->lock, flags);
1834 es1370_update_ptr(s);
1835 if (s->dma_dac1.mapped) {
1836 if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
1837 mask |= POLLOUT | POLLWRNORM;
1838 } else {
1839 if ((signed)s->dma_dac1.dmasize >= s->dma_dac1.count + (signed)s->dma_dac1.fragsize)
1840 mask |= POLLOUT | POLLWRNORM;
1841 }
1842 spin_unlock_irqrestore(&s->lock, flags);
1843 return mask;
1844 }
1845
1846 static int es1370_mmap_dac(struct file *file, struct vm_area_struct *vma)
1847 {
1848 struct es1370_state *s = (struct es1370_state *)file->private_data;
1849 int ret;
1850 unsigned long size;
1851
1852 VALIDATE_STATE(s);
1853 if (!(vma->vm_flags & VM_WRITE))
1854 return -EINVAL;
1855 if ((ret = prog_dmabuf_dac1(s)) != 0)
1856 return ret;
1857 if (vma->vm_pgoff != 0)
1858 return -EINVAL;
1859 size = vma->vm_end - vma->vm_start;
1860 if (size > (PAGE_SIZE << s->dma_dac1.buforder))
1861 return -EINVAL;
1862 if (remap_page_range(vma->vm_start, virt_to_phys(s->dma_dac1.rawbuf), size, vma->vm_page_prot))
1863 return -EAGAIN;
1864 s->dma_dac1.mapped = 1;
1865 return 0;
1866 }
1867
1868 static int es1370_ioctl_dac(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1869 {
1870 struct es1370_state *s = (struct es1370_state *)file->private_data;
1871 unsigned long flags;
1872 audio_buf_info abinfo;
1873 count_info cinfo;
1874 int count;
1875 unsigned ctrl;
1876 int val, ret;
1877
1878 VALIDATE_STATE(s);
1879 switch (cmd) {
1880 case OSS_GETVERSION:
1881 return put_user(SOUND_VERSION, (int *)arg);
1882
1883 case SNDCTL_DSP_SYNC:
1884 return drain_dac1(s, 0/*file->f_flags & O_NONBLOCK*/);
1885
1886 case SNDCTL_DSP_SETDUPLEX:
1887 return -EINVAL;
1888
1889 case SNDCTL_DSP_GETCAPS:
1890 return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg);
1891
1892 case SNDCTL_DSP_RESET:
1893 stop_dac1(s);
1894 synchronize_irq();
1895 s->dma_dac1.swptr = s->dma_dac1.hwptr = s->dma_dac1.count = s->dma_dac1.total_bytes = 0;
1896 return 0;
1897
1898 case SNDCTL_DSP_SPEED:
1899 get_user_ret(val, (int *)arg, -EFAULT);
1900 if (val >= 0) {
1901 stop_dac1(s);
1902 s->dma_dac1.ready = 0;
1903 for (ctrl = 0; ctrl <= 2; ctrl++)
1904 if (val < (dac1_samplerate[ctrl] + dac1_samplerate[ctrl+1]) / 2)
1905 break;
1906 spin_lock_irqsave(&s->lock, flags);
1907 s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (ctrl << CTRL_SH_WTSRSEL);
1908 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1909 spin_unlock_irqrestore(&s->lock, flags);
1910 }
1911 return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], (int *)arg);
1912
1913 case SNDCTL_DSP_STEREO:
1914 get_user_ret(val, (int *)arg, -EFAULT);
1915 stop_dac1(s);
1916 s->dma_dac1.ready = 0;
1917 spin_lock_irqsave(&s->lock, flags);
1918 if (val)
1919 s->sctrl |= SCTRL_P1SMB;
1920 else
1921 s->sctrl &= ~SCTRL_P1SMB;
1922 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1923 spin_unlock_irqrestore(&s->lock, flags);
1924 return 0;
1925
1926 case SNDCTL_DSP_CHANNELS:
1927 get_user_ret(val, (int *)arg, -EFAULT);
1928 if (val != 0) {
1929 if (s->dma_dac1.mapped)
1930 return -EINVAL;
1931 stop_dac1(s);
1932 s->dma_dac1.ready = 0;
1933 spin_lock_irqsave(&s->lock, flags);
1934 if (val >= 2)
1935 s->sctrl |= SCTRL_P1SMB;
1936 else
1937 s->sctrl &= ~SCTRL_P1SMB;
1938 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1939 spin_unlock_irqrestore(&s->lock, flags);
1940 }
1941 return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, (int *)arg);
1942
1943 case SNDCTL_DSP_GETFMTS: /* Returns a mask */
1944 return put_user(AFMT_S16_LE|AFMT_U8, (int *)arg);
1945
1946 case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
1947 get_user_ret(val, (int *)arg, -EFAULT);
1948 if (val != AFMT_QUERY) {
1949 stop_dac1(s);
1950 s->dma_dac1.ready = 0;
1951 spin_lock_irqsave(&s->lock, flags);
1952 if (val == AFMT_S16_LE)
1953 s->sctrl |= SCTRL_P1SEB;
1954 else
1955 s->sctrl &= ~SCTRL_P1SEB;
1956 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1957 spin_unlock_irqrestore(&s->lock, flags);
1958 }
1959 return put_user((s->sctrl & SCTRL_P1SEB) ? AFMT_S16_LE : AFMT_U8, (int *)arg);
1960
1961 case SNDCTL_DSP_POST:
1962 return 0;
1963
1964 case SNDCTL_DSP_GETTRIGGER:
1965 return put_user((s->ctrl & CTRL_DAC1_EN) ? PCM_ENABLE_OUTPUT : 0, (int *)arg);
1966
1967 case SNDCTL_DSP_SETTRIGGER:
1968 get_user_ret(val, (int *)arg, -EFAULT);
1969 if (val & PCM_ENABLE_OUTPUT) {
1970 if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
1971 return ret;
1972 start_dac1(s);
1973 } else
1974 stop_dac1(s);
1975 return 0;
1976
1977 case SNDCTL_DSP_GETOSPACE:
1978 if (!(s->ctrl & CTRL_DAC2_EN) && (val = prog_dmabuf_dac1(s)) != 0)
1979 return val;
1980 spin_lock_irqsave(&s->lock, flags);
1981 es1370_update_ptr(s);
1982 abinfo.fragsize = s->dma_dac1.fragsize;
1983 count = s->dma_dac1.count;
1984 if (count < 0)
1985 count = 0;
1986 abinfo.bytes = s->dma_dac1.dmasize - count;
1987 abinfo.fragstotal = s->dma_dac1.numfrag;
1988 abinfo.fragments = abinfo.bytes >> s->dma_dac1.fragshift;
1989 spin_unlock_irqrestore(&s->lock, flags);
1990 return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1991
1992 case SNDCTL_DSP_NONBLOCK:
1993 file->f_flags |= O_NONBLOCK;
1994 return 0;
1995
1996 case SNDCTL_DSP_GETODELAY:
1997 spin_lock_irqsave(&s->lock, flags);
1998 es1370_update_ptr(s);
1999 count = s->dma_dac1.count;
2000 spin_unlock_irqrestore(&s->lock, flags);
2001 if (count < 0)
2002 count = 0;
2003 return put_user(count, (int *)arg);
2004
2005 case SNDCTL_DSP_GETOPTR:
2006 if (!(file->f_mode & FMODE_WRITE))
2007 return -EINVAL;
2008 spin_lock_irqsave(&s->lock, flags);
2009 es1370_update_ptr(s);
2010 cinfo.bytes = s->dma_dac1.total_bytes;
2011 count = s->dma_dac1.count;
2012 if (count < 0)
2013 count = 0;
2014 cinfo.blocks = count >> s->dma_dac1.fragshift;
2015 cinfo.ptr = s->dma_dac1.hwptr;
2016 if (s->dma_dac1.mapped)
2017 s->dma_dac1.count &= s->dma_dac1.fragsize-1;
2018 spin_unlock_irqrestore(&s->lock, flags);
2019 return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
2020
2021 case SNDCTL_DSP_GETBLKSIZE:
2022 if ((val = prog_dmabuf_dac1(s)))
2023 return val;
2024 return put_user(s->dma_dac1.fragsize, (int *)arg);
2025
2026 case SNDCTL_DSP_SETFRAGMENT:
2027 get_user_ret(val, (int *)arg, -EFAULT);
2028 s->dma_dac1.ossfragshift = val & 0xffff;
2029 s->dma_dac1.ossmaxfrags = (val >> 16) & 0xffff;
2030 if (s->dma_dac1.ossfragshift < 4)
2031 s->dma_dac1.ossfragshift = 4;
2032 if (s->dma_dac1.ossfragshift > 15)
2033 s->dma_dac1.ossfragshift = 15;
2034 if (s->dma_dac1.ossmaxfrags < 4)
2035 s->dma_dac1.ossmaxfrags = 4;
2036 return 0;
2037
2038 case SNDCTL_DSP_SUBDIVIDE:
2039 if (s->dma_dac1.subdivision)
2040 return -EINVAL;
2041 get_user_ret(val, (int *)arg, -EFAULT);
2042 if (val != 1 && val != 2 && val != 4)
2043 return -EINVAL;
2044 s->dma_dac1.subdivision = val;
2045 return 0;
2046
2047 case SOUND_PCM_READ_RATE:
2048 return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], (int *)arg);
2049
2050 case SOUND_PCM_READ_CHANNELS:
2051 return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, (int *)arg);
2052
2053 case SOUND_PCM_READ_BITS:
2054 return put_user((s->sctrl & SCTRL_P1SEB) ? 16 : 8, (int *)arg);
2055
2056 case SOUND_PCM_WRITE_FILTER:
2057 case SNDCTL_DSP_SETSYNCRO:
2058 case SOUND_PCM_READ_FILTER:
2059 return -EINVAL;
2060
2061 }
2062 return mixer_ioctl(s, cmd, arg);
2063 }
2064
2065 static int es1370_open_dac(struct inode *inode, struct file *file)
2066 {
2067 int minor = MINOR(inode->i_rdev);
2068 DECLARE_WAITQUEUE(wait, current);
2069 unsigned long flags;
2070 struct list_head *list;
2071 struct es1370_state *s;
2072
2073 for (list = devs.next; ; list = list->next) {
2074 if (list == &devs)
2075 return -ENODEV;
2076 s = list_entry(list, struct es1370_state, devs);
2077 if (!((s->dev_dac ^ minor) & ~0xf))
2078 break;
2079 }
2080 VALIDATE_STATE(s);
2081 /* we allow opening with O_RDWR, most programs do it although they will only write */
2082 #if 0
2083 if (file->f_mode & FMODE_READ)
2084 return -EPERM;
2085 #endif
2086 if (!(file->f_mode & FMODE_WRITE))
2087 return -EINVAL;
2088 file->private_data = s;
2089 /* wait for device to become free */
2090 down(&s->open_sem);
2091 while (s->open_mode & FMODE_DAC) {
2092 if (file->f_flags & O_NONBLOCK) {
2093 up(&s->open_sem);
2094 return -EBUSY;
2095 }
2096 add_wait_queue(&s->open_wait, &wait);
2097 __set_current_state(TASK_INTERRUPTIBLE);
2098 up(&s->open_sem);
2099 schedule();
2100 remove_wait_queue(&s->open_wait, &wait);
2101 set_current_state(TASK_RUNNING);
2102 if (signal_pending(current))
2103 return -ERESTARTSYS;
2104 down(&s->open_sem);
2105 }
2106 s->dma_dac1.ossfragshift = s->dma_dac1.ossmaxfrags = s->dma_dac1.subdivision = 0;
2107 spin_lock_irqsave(&s->lock, flags);
2108 s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (1 << CTRL_SH_WTSRSEL);
2109 s->sctrl &= ~SCTRL_P1FMT;
2110 if ((minor & 0xf) == SND_DEV_DSP16)
2111 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P1FMT;
2112 else
2113 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P1FMT;
2114 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2115 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2116 spin_unlock_irqrestore(&s->lock, flags);
2117 s->open_mode |= FMODE_DAC;
2118 up(&s->open_sem);
2119 MOD_INC_USE_COUNT;
2120 return 0;
2121 }
2122
2123 static int es1370_release_dac(struct inode *inode, struct file *file)
2124 {
2125 struct es1370_state *s = (struct es1370_state *)file->private_data;
2126
2127 VALIDATE_STATE(s);
2128 drain_dac1(s, file->f_flags & O_NONBLOCK);
2129 down(&s->open_sem);
2130 stop_dac1(s);
2131 dealloc_dmabuf(s, &s->dma_dac1);
2132 s->open_mode &= ~FMODE_DAC;
2133 wake_up(&s->open_wait);
2134 up(&s->open_sem);
2135 MOD_DEC_USE_COUNT;
2136 return 0;
2137 }
2138
2139 static /*const*/ struct file_operations es1370_dac_fops = {
2140 llseek: es1370_llseek,
2141 write: es1370_write_dac,
2142 poll: es1370_poll_dac,
2143 ioctl: es1370_ioctl_dac,
2144 mmap: es1370_mmap_dac,
2145 open: es1370_open_dac,
2146 release: es1370_release_dac,
2147 };
2148
2149 /* --------------------------------------------------------------------- */
2150
2151 static ssize_t es1370_midi_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
2152 {
2153 struct es1370_state *s = (struct es1370_state *)file->private_data;
2154 DECLARE_WAITQUEUE(wait, current);
2155 ssize_t ret;
2156 unsigned long flags;
2157 unsigned ptr;
2158 int cnt;
2159
2160 VALIDATE_STATE(s);
2161 if (ppos != &file->f_pos)
2162 return -ESPIPE;
2163 if (!access_ok(VERIFY_WRITE, buffer, count))
2164 return -EFAULT;
2165 if (count == 0)
2166 return 0;
2167 ret = 0;
2168 add_wait_queue(&s->midi.iwait, &wait);
2169 while (count > 0) {
2170 spin_lock_irqsave(&s->lock, flags);
2171 ptr = s->midi.ird;
2172 cnt = MIDIINBUF - ptr;
2173 if (s->midi.icnt < cnt)
2174 cnt = s->midi.icnt;
2175 if (cnt <= 0)
2176 __set_current_state(TASK_INTERRUPTIBLE);
2177 spin_unlock_irqrestore(&s->lock, flags);
2178 if (cnt > count)
2179 cnt = count;
2180 if (cnt <= 0) {
2181 if (file->f_flags & O_NONBLOCK) {
2182 if (!ret)
2183 ret = -EAGAIN;
2184 break;
2185 }
2186 schedule();
2187 if (signal_pending(current)) {
2188 if (!ret)
2189 ret = -ERESTARTSYS;
2190 break;
2191 }
2192 continue;
2193 }
2194 if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt)) {
2195 if (!ret)
2196 ret = -EFAULT;
2197 break;
2198 }
2199 ptr = (ptr + cnt) % MIDIINBUF;
2200 spin_lock_irqsave(&s->lock, flags);
2201 s->midi.ird = ptr;
2202 s->midi.icnt -= cnt;
2203 spin_unlock_irqrestore(&s->lock, flags);
2204 count -= cnt;
2205 buffer += cnt;
2206 ret += cnt;
2207 break;
2208 }
2209 __set_current_state(TASK_RUNNING);
2210 remove_wait_queue(&s->midi.iwait, &wait);
2211 return ret;
2212 }
2213
2214 static ssize_t es1370_midi_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
2215 {
2216 struct es1370_state *s = (struct es1370_state *)file->private_data;
2217 DECLARE_WAITQUEUE(wait, current);
2218 ssize_t ret;
2219 unsigned long flags;
2220 unsigned ptr;
2221 int cnt;
2222
2223 VALIDATE_STATE(s);
2224 if (ppos != &file->f_pos)
2225 return -ESPIPE;
2226 if (!access_ok(VERIFY_READ, buffer, count))
2227 return -EFAULT;
2228 if (count == 0)
2229 return 0;
2230 ret = 0;
2231 add_wait_queue(&s->midi.owait, &wait);
2232 while (count > 0) {
2233 spin_lock_irqsave(&s->lock, flags);
2234 ptr = s->midi.owr;
2235 cnt = MIDIOUTBUF - ptr;
2236 if (s->midi.ocnt + cnt > MIDIOUTBUF)
2237 cnt = MIDIOUTBUF - s->midi.ocnt;
2238 if (cnt <= 0) {
2239 __set_current_state(TASK_INTERRUPTIBLE);
2240 es1370_handle_midi(s);
2241 }
2242 spin_unlock_irqrestore(&s->lock, flags);
2243 if (cnt > count)
2244 cnt = count;
2245 if (cnt <= 0) {
2246 if (file->f_flags & O_NONBLOCK) {
2247 if (!ret)
2248 ret = -EAGAIN;
2249 break;
2250 }
2251 schedule();
2252 if (signal_pending(current)) {
2253 if (!ret)
2254 ret = -ERESTARTSYS;
2255 break;
2256 }
2257 continue;
2258 }
2259 if (copy_from_user(s->midi.obuf + ptr, buffer, cnt)) {
2260 if (!ret)
2261 ret = -EFAULT;
2262 break;
2263 }
2264 ptr = (ptr + cnt) % MIDIOUTBUF;
2265 spin_lock_irqsave(&s->lock, flags);
2266 s->midi.owr = ptr;
2267 s->midi.ocnt += cnt;
2268 spin_unlock_irqrestore(&s->lock, flags);
2269 count -= cnt;
2270 buffer += cnt;
2271 ret += cnt;
2272 spin_lock_irqsave(&s->lock, flags);
2273 es1370_handle_midi(s);
2274 spin_unlock_irqrestore(&s->lock, flags);
2275 }
2276 __set_current_state(TASK_RUNNING);
2277 remove_wait_queue(&s->midi.owait, &wait);
2278 return ret;
2279 }
2280
2281 /* No kernel lock - we have our own spinlock */
2282 static unsigned int es1370_midi_poll(struct file *file, struct poll_table_struct *wait)
2283 {
2284 struct es1370_state *s = (struct es1370_state *)file->private_data;
2285 unsigned long flags;
2286 unsigned int mask = 0;
2287
2288 VALIDATE_STATE(s);
2289 if (file->f_mode & FMODE_WRITE)
2290 poll_wait(file, &s->midi.owait, wait);
2291 if (file->f_mode & FMODE_READ)
2292 poll_wait(file, &s->midi.iwait, wait);
2293 spin_lock_irqsave(&s->lock, flags);
2294 if (file->f_mode & FMODE_READ) {
2295 if (s->midi.icnt > 0)
2296 mask |= POLLIN | POLLRDNORM;
2297 }
2298 if (file->f_mode & FMODE_WRITE) {
2299 if (s->midi.ocnt < MIDIOUTBUF)
2300 mask |= POLLOUT | POLLWRNORM;
2301 }
2302 spin_unlock_irqrestore(&s->lock, flags);
2303 return mask;
2304 }
2305
2306 static int es1370_midi_open(struct inode *inode, struct file *file)
2307 {
2308 int minor = MINOR(inode->i_rdev);
2309 DECLARE_WAITQUEUE(wait, current);
2310 unsigned long flags;
2311 struct list_head *list;
2312 struct es1370_state *s;
2313
2314 for (list = devs.next; ; list = list->next) {
2315 if (list == &devs)
2316 return -ENODEV;
2317 s = list_entry(list, struct es1370_state, devs);
2318 if (s->dev_midi == minor)
2319 break;
2320 }
2321 VALIDATE_STATE(s);
2322 file->private_data = s;
2323 /* wait for device to become free */
2324 down(&s->open_sem);
2325 while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
2326 if (file->f_flags & O_NONBLOCK) {
2327 up(&s->open_sem);
2328 return -EBUSY;
2329 }
2330 add_wait_queue(&s->open_wait, &wait);
2331 __set_current_state(TASK_INTERRUPTIBLE);
2332 up(&s->open_sem);
2333 schedule();
2334 remove_wait_queue(&s->open_wait, &wait);
2335 set_current_state(TASK_RUNNING);
2336 if (signal_pending(current))
2337 return -ERESTARTSYS;
2338 down(&s->open_sem);
2339 }
2340 spin_lock_irqsave(&s->lock, flags);
2341 if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2342 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2343 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2344 outb(UCTRL_CNTRL_SWR, s->io+ES1370_REG_UART_CONTROL);
2345 outb(0, s->io+ES1370_REG_UART_CONTROL);
2346 outb(0, s->io+ES1370_REG_UART_TEST);
2347 }
2348 if (file->f_mode & FMODE_READ) {
2349 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2350 }
2351 if (file->f_mode & FMODE_WRITE) {
2352 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2353 }
2354 s->ctrl |= CTRL_UART_EN;
2355 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2356 es1370_handle_midi(s);
2357 spin_unlock_irqrestore(&s->lock, flags);
2358 s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
2359 up(&s->open_sem);
2360 MOD_INC_USE_COUNT;
2361 return 0;
2362 }
2363
2364 static int es1370_midi_release(struct inode *inode, struct file *file)
2365 {
2366 struct es1370_state *s = (struct es1370_state *)file->private_data;
2367 DECLARE_WAITQUEUE(wait, current);
2368 unsigned long flags;
2369 unsigned count, tmo;
2370
2371 VALIDATE_STATE(s);
2372
2373 if (file->f_mode & FMODE_WRITE) {
2374 add_wait_queue(&s->midi.owait, &wait);
2375 for (;;) {
2376 __set_current_state(TASK_INTERRUPTIBLE);
2377 spin_lock_irqsave(&s->lock, flags);
2378 count = s->midi.ocnt;
2379 spin_unlock_irqrestore(&s->lock, flags);
2380 if (count <= 0)
2381 break;
2382 if (signal_pending(current))
2383 break;
2384 if (file->f_flags & O_NONBLOCK) {
2385 remove_wait_queue(&s->midi.owait, &wait);
2386 set_current_state(TASK_RUNNING);
2387 return -EBUSY;
2388 }
2389 tmo = (count * HZ) / 3100;
2390 if (!schedule_timeout(tmo ? : 1) && tmo)
2391 DBG(printk(KERN_DEBUG "es1370: midi timed out??\n");)
2392 }
2393 remove_wait_queue(&s->midi.owait, &wait);
2394 set_current_state(TASK_RUNNING);
2395 }
2396 down(&s->open_sem);
2397 s->open_mode &= (~(file->f_mode << FMODE_MIDI_SHIFT)) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE);
2398 spin_lock_irqsave(&s->lock, flags);
2399 if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2400 s->ctrl &= ~CTRL_UART_EN;
2401 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2402 }
2403 spin_unlock_irqrestore(&s->lock, flags);
2404 wake_up(&s->open_wait);
2405 up(&s->open_sem);
2406 MOD_DEC_USE_COUNT;
2407 return 0;
2408 }
2409
2410 static /*const*/ struct file_operations es1370_midi_fops = {
2411 llseek: es1370_llseek,
2412 read: es1370_midi_read,
2413 write: es1370_midi_write,
2414 poll: es1370_midi_poll,
2415 open: es1370_midi_open,
2416 release: es1370_midi_release,
2417 };
2418
2419 /* --------------------------------------------------------------------- */
2420
2421 /* maximum number of devices; only used for command line params */
2422 #define NR_DEVICE 5
2423
2424 static int joystick[NR_DEVICE] = { 0, };
2425 static int lineout[NR_DEVICE] = { 0, };
2426 static int micbias[NR_DEVICE] = { 0, };
2427
2428 static unsigned int devindex = 0;
2429
2430 MODULE_PARM(joystick, "1-" __MODULE_STRING(NR_DEVICE) "i");
2431 MODULE_PARM_DESC(joystick, "if 1 enables joystick interface (still need separate driver)");
2432 MODULE_PARM(lineout, "1-" __MODULE_STRING(NR_DEVICE) "i");
2433 MODULE_PARM_DESC(lineout, "if 1 the LINE input is converted to LINE out");
2434 MODULE_PARM(micbias, "1-" __MODULE_STRING(NR_DEVICE) "i");
2435 MODULE_PARM_DESC(micbias, "sets the +5V bias for an electret microphone");
2436
2437 MODULE_AUTHOR("Thomas M. Sailer, sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu");
2438 MODULE_DESCRIPTION("ES1370 AudioPCI Driver");
2439
2440 /* --------------------------------------------------------------------- */
2441
2442 static struct initvol {
2443 int mixch;
2444 int vol;
2445 } initvol[] __initdata = {
2446 { SOUND_MIXER_WRITE_VOLUME, 0x4040 },
2447 { SOUND_MIXER_WRITE_PCM, 0x4040 },
2448 { SOUND_MIXER_WRITE_SYNTH, 0x4040 },
2449 { SOUND_MIXER_WRITE_CD, 0x4040 },
2450 { SOUND_MIXER_WRITE_LINE, 0x4040 },
2451 { SOUND_MIXER_WRITE_LINE1, 0x4040 },
2452 { SOUND_MIXER_WRITE_LINE2, 0x4040 },
2453 { SOUND_MIXER_WRITE_LINE3, 0x4040 },
2454 { SOUND_MIXER_WRITE_MIC, 0x4040 },
2455 { SOUND_MIXER_WRITE_OGAIN, 0x4040 }
2456 };
2457
2458 #define RSRCISIOREGION(dev,num) ((dev)->resource[(num)].start != 0 && \
2459 ((dev)->resource[(num)].flags & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_IO)
2460 #define RSRCADDRESS(dev,num) ((dev)->resource[(num)].start)
2461
2462 static int __devinit es1370_probe(struct pci_dev *pcidev, const struct pci_device_id *pciid)
2463 {
2464 struct es1370_state *s;
2465 mm_segment_t fs;
2466 int i, val;
2467
2468 if (!RSRCISIOREGION(pcidev, 0))
2469 return -1;
2470 if (pcidev->irq == 0)
2471 return -1;
2472 if (!pci_dma_supported(pcidev, 0xffffffff)) {
2473 printk(KERN_WARNING "es1370: architecture does not support 32bit PCI busmaster DMA\n");
2474 return -1;
2475 }
2476 if (!(s = kmalloc(sizeof(struct es1370_state), GFP_KERNEL))) {
2477 printk(KERN_WARNING "es1370: out of memory\n");
2478 return -1;
2479 }
2480 memset(s, 0, sizeof(struct es1370_state));
2481 init_waitqueue_head(&s->dma_adc.wait);
2482 init_waitqueue_head(&s->dma_dac1.wait);
2483 init_waitqueue_head(&s->dma_dac2.wait);
2484 init_waitqueue_head(&s->open_wait);
2485 init_waitqueue_head(&s->midi.iwait);
2486 init_waitqueue_head(&s->midi.owait);
2487 init_MUTEX(&s->open_sem);
2488 spin_lock_init(&s->lock);
2489 s->magic = ES1370_MAGIC;
2490 s->dev = pcidev;
2491 s->io = RSRCADDRESS(pcidev, 0);
2492 s->irq = pcidev->irq;
2493 if (!request_region(s->io, ES1370_EXTENT, "es1370")) {
2494 printk(KERN_ERR "es1370: io ports %#lx-%#lx in use\n", s->io, s->io+ES1370_EXTENT-1);
2495 goto err_region;
2496 }
2497 if (pci_enable_device(pcidev))
2498 goto err_irq;
2499 if (request_irq(s->irq, es1370_interrupt, SA_SHIRQ, "es1370", s)) {
2500 printk(KERN_ERR "es1370: irq %u in use\n", s->irq);
2501 goto err_irq;
2502 }
2503 /* initialize codec registers */
2504 /* note: setting CTRL_SERR_DIS is reported to break
2505 * mic bias setting (by Kim.Berts@fisub.mail.abb.com) */
2506 s->ctrl = CTRL_CDC_EN | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV) | (1 << CTRL_SH_WTSRSEL);
2507 if (joystick[devindex]) {
2508 if (check_region(0x200, JOY_EXTENT))
2509 printk(KERN_ERR "es1370: io port 0x200 in use\n");
2510 else
2511 s->ctrl |= CTRL_JYSTK_EN;
2512 }
2513 if (lineout[devindex])
2514 s->ctrl |= CTRL_XCTL0;
2515 if (micbias[devindex])
2516 s->ctrl |= CTRL_XCTL1;
2517 s->sctrl = 0;
2518 printk(KERN_INFO "es1370: found adapter at io %#lx irq %u\n"
2519 KERN_INFO "es1370: features: joystick %s, line %s, mic impedance %s\n",
2520 s->io, s->irq, (s->ctrl & CTRL_JYSTK_EN) ? "on" : "off",
2521 (s->ctrl & CTRL_XCTL0) ? "out" : "in",
2522 (s->ctrl & CTRL_XCTL1) ? "1" : "0");
2523 /* register devices */
2524 if ((s->dev_audio = register_sound_dsp(&es1370_audio_fops, -1)) < 0)
2525 goto err_dev1;
2526 if ((s->dev_mixer = register_sound_mixer(&es1370_mixer_fops, -1)) < 0)
2527 goto err_dev2;
2528 if ((s->dev_dac = register_sound_dsp(&es1370_dac_fops, -1)) < 0)
2529 goto err_dev3;
2530 if ((s->dev_midi = register_sound_midi(&es1370_midi_fops, -1)) < 0)
2531 goto err_dev4;
2532 /* initialize the chips */
2533 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2534 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2535 /* point phantom write channel to "bugbuf" */
2536 outl((ES1370_REG_PHANTOM_FRAMEADR >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
2537 outl(virt_to_bus(bugbuf), s->io+(ES1370_REG_PHANTOM_FRAMEADR & 0xff));
2538 outl(0, s->io+(ES1370_REG_PHANTOM_FRAMECNT & 0xff));
2539 pci_set_master(pcidev); /* enable bus mastering */
2540 wrcodec(s, 0x16, 3); /* no RST, PD */
2541 wrcodec(s, 0x17, 0); /* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off the LRCLK2 PLL; program DAC_SYNC=0!! */
2542 wrcodec(s, 0x18, 0); /* recording source is mixer */
2543 wrcodec(s, 0x19, s->mix.micpreamp = 1); /* turn on MIC preamp */
2544 s->mix.imix = 1;
2545 fs = get_fs();
2546 set_fs(KERNEL_DS);
2547 val = SOUND_MASK_LINE|SOUND_MASK_SYNTH|SOUND_MASK_CD;
2548 mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val);
2549 for (i = 0; i < sizeof(initvol)/sizeof(initvol[0]); i++) {
2550 val = initvol[i].vol;
2551 mixer_ioctl(s, initvol[i].mixch, (unsigned long)&val);
2552 }
2553 set_fs(fs);
2554 /* store it in the driver field */
2555 pcidev->driver_data = s;
2556 pcidev->dma_mask = 0xffffffff;
2557 /* put it into driver list */
2558 list_add_tail(&s->devs, &devs);
2559 /* increment devindex */
2560 if (devindex < NR_DEVICE-1)
2561 devindex++;
2562 return 0;
2563
2564 err_dev4:
2565 unregister_sound_dsp(s->dev_dac);
2566 err_dev3:
2567 unregister_sound_mixer(s->dev_mixer);
2568 err_dev2:
2569 unregister_sound_dsp(s->dev_audio);
2570 err_dev1:
2571 printk(KERN_ERR "es1370: cannot register misc device\n");
2572 free_irq(s->irq, s);
2573 err_irq:
2574 release_region(s->io, ES1370_EXTENT);
2575 err_region:
2576 kfree_s(s, sizeof(struct es1370_state));
2577 return -1;
2578 }
2579
2580 static void __devinit es1370_remove(struct pci_dev *dev)
2581 {
2582 struct es1370_state *s = (struct es1370_state *)dev->driver_data;
2583
2584 if (!s)
2585 return;
2586 list_del(&s->devs);
2587 outl(CTRL_SERR_DIS | (1 << CTRL_SH_WTSRSEL), s->io+ES1370_REG_CONTROL); /* switch everything off */
2588 outl(0, s->io+ES1370_REG_SERIAL_CONTROL); /* clear serial interrupts */
2589 synchronize_irq();
2590 free_irq(s->irq, s);
2591 release_region(s->io, ES1370_EXTENT);
2592 unregister_sound_dsp(s->dev_audio);
2593 unregister_sound_mixer(s->dev_mixer);
2594 unregister_sound_dsp(s->dev_dac);
2595 unregister_sound_midi(s->dev_midi);
2596 kfree_s(s, sizeof(struct es1370_state));
2597 dev->driver_data = NULL;
2598 }
2599
2600 static struct pci_device_id id_table[] __devinitdata = {
2601 { PCI_VENDOR_ID_ENSONIQ, PCI_DEVICE_ID_ENSONIQ_ES1370, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
2602 { 0, 0, 0, 0, 0, 0 }
2603 };
2604
2605 MODULE_DEVICE_TABLE(pci, id_table);
2606
2607 static struct pci_driver es1370_driver = {
2608 name: "es1370",
2609 id_table: id_table,
2610 probe: es1370_probe,
2611 remove: es1370_remove
2612 };
2613
2614 static int __init init_es1370(void)
2615 {
2616 if (!pci_present()) /* No PCI bus in this machine! */
2617 return -ENODEV;
2618 printk(KERN_INFO "es1370: version v0.33 time " __TIME__ " " __DATE__ "\n");
2619 if (!pci_register_driver(&es1370_driver)) {
2620 pci_unregister_driver(&es1370_driver);
2621 return -ENODEV;
2622 }
2623 return 0;
2624
2625 }
2626
2627 static void __exit cleanup_es1370(void)
2628 {
2629 printk(KERN_INFO "es1370: unloading\n");
2630 pci_unregister_driver(&es1370_driver);
2631 }
2632
2633 module_init(init_es1370);
2634 module_exit(cleanup_es1370);
2635
2636 /* --------------------------------------------------------------------- */
2637
2638 #ifndef MODULE
2639
2640 /* format is: es1370=[joystick[,lineout[,micbias]]] */
2641
2642 static int __init es1370_setup(char *str)
2643 {
2644 static unsigned __initlocaldata nr_dev = 0;
2645
2646 if (nr_dev >= NR_DEVICE)
2647 return 0;
2648
2649 (void)
2650 ( (get_option(&str,&joystick[nr_dev]) == 2)
2651 && (get_option(&str,&lineout [nr_dev]) == 2)
2652 && get_option(&str,&micbias [nr_dev])
2653 );
2654
2655 nr_dev++;
2656 return 1;
2657 }
2658
2659 __setup("es1370=", es1370_setup);
2660
2661 #endif /* MODULE */
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