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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/oss/es1370.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'sound/oss/es1370.c')
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diff --git a/sound/oss/es1370.c b/sound/oss/es1370.c
new file mode 100644
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@@ -0,0 +1,2789 @@
+/*****************************************************************************/
+
+/*
+ * es1370.c -- Ensoniq ES1370/Asahi Kasei AK4531 audio driver.
+ *
+ * Copyright (C) 1998-2001, 2003 Thomas Sailer (t.sailer@alumni.ethz.ch)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Special thanks to David C. Niemi
+ *
+ *
+ * Module command line parameters:
+ * lineout if 1 the LINE jack is used as an output instead of an input.
+ * LINE then contains the unmixed dsp output. This can be used
+ * to make the card a four channel one: use dsp to output two
+ * channels to LINE and dac to output the other two channels to
+ * SPKR. Set the mixer to only output synth to SPKR.
+ * micbias sets the +5V bias to the mic if using an electretmic.
+ *
+ *
+ * Note: sync mode is not yet supported (i.e. running dsp and dac from the same
+ * clock source)
+ *
+ * Supported devices:
+ * /dev/dsp standard /dev/dsp device, (mostly) OSS compatible
+ * /dev/mixer standard /dev/mixer device, (mostly) OSS compatible
+ * /dev/dsp1 additional DAC, like /dev/dsp, but output only,
+ * only 5512, 11025, 22050 and 44100 samples/s,
+ * outputs to mixer "SYNTH" setting
+ * /dev/midi simple MIDI UART interface, no ioctl
+ *
+ * NOTE: the card does not have any FM/Wavetable synthesizer, it is supposed
+ * to be done in software. That is what /dev/dac is for. By now (Q2 1998)
+ * there are several MIDI to PCM (WAV) packages, one of them is timidity.
+ *
+ * Revision history
+ * 26.03.1998 0.1 Initial release
+ * 31.03.1998 0.2 Fix bug in GETOSPACE
+ * 04.04.1998 0.3 Make it work (again) under 2.0.33
+ * Fix mixer write operation not returning the actual
+ * settings
+ * 05.04.1998 0.4 First attempt at using the new PCI stuff
+ * 29.04.1998 0.5 Fix hang when ^C is pressed on amp
+ * 07.05.1998 0.6 Don't double lock around stop_*() in *_release()
+ * 10.05.1998 0.7 First stab at a simple midi interface (no bells&whistles)
+ * 14.05.1998 0.8 Don't allow excessive interrupt rates
+ * 08.06.1998 0.9 First release using Alan Cox' soundcore instead of
+ * miscdevice
+ * 05.07.1998 0.10 Fixed the driver to correctly maintin OSS style volume
+ * settings (not sure if this should be standard)
+ * Fixed many references: f_flags should be f_mode
+ * -- Gerald Britton <gbritton@mit.edu>
+ * 03.08.1998 0.11 Now mixer behaviour can basically be selected between
+ * "OSS documented" and "OSS actual" behaviour
+ * Fixed mixer table thanks to Hakan.Lennestal@lu.erisoft.se
+ * On module startup, set DAC2 to 11kSPS instead of 5.5kSPS,
+ * as it produces an annoying ssssh in the lower sampling rate
+ * Do not include modversions.h
+ * 22.08.1998 0.12 Mixer registers actually have 5 instead of 4 bits
+ * pointed out by Itai Nahshon
+ * 31.08.1998 0.13 Fix realplayer problems - dac.count issues
+ * 08.10.1998 0.14 Joystick support fixed
+ * -- Oliver Neukum <c188@org.chemie.uni-muenchen.de>
+ * 10.12.1998 0.15 Fix drain_dac trying to wait on not yet initialized DMA
+ * 16.12.1998 0.16 Don't wake up app until there are fragsize bytes to read/write
+ * 06.01.1999 0.17 remove the silly SA_INTERRUPT flag.
+ * hopefully killed the egcs section type conflict
+ * 12.03.1999 0.18 cinfo.blocks should be reset after GETxPTR ioctl.
+ * reported by Johan Maes <joma@telindus.be>
+ * 22.03.1999 0.19 return EAGAIN instead of EBUSY when O_NONBLOCK
+ * read/write cannot be executed
+ * 07.04.1999 0.20 implemented the following ioctl's: SOUND_PCM_READ_RATE,
+ * SOUND_PCM_READ_CHANNELS, SOUND_PCM_READ_BITS;
+ * Alpha fixes reported by Peter Jones <pjones@redhat.com>
+ * Note: joystick address handling might still be wrong on archs
+ * other than i386
+ * 10.05.1999 0.21 Added support for an electret mic for SB PCI64
+ * to the Linux kernel sound driver. This mod also straighten
+ * out the question marks around the mic impedance setting
+ * (micz). From Kim.Berts@fisub.mail.abb.com
+ * 11.05.1999 0.22 Implemented the IMIX call to mute recording monitor.
+ * Guenter Geiger <geiger@epy.co.at>
+ * 15.06.1999 0.23 Fix bad allocation bug.
+ * Thanks to Deti Fliegl <fliegl@in.tum.de>
+ * 28.06.1999 0.24 Add pci_set_master
+ * 02.08.1999 0.25 Added workaround for the "phantom write" bug first
+ * documented by Dave Sharpless from Anchor Games
+ * 03.08.1999 0.26 adapt to Linus' new __setup/__initcall
+ * added kernel command line option "es1370=joystick[,lineout[,micbias]]"
+ * removed CONFIG_SOUND_ES1370_JOYPORT_BOOT kludge
+ * 12.08.1999 0.27 module_init/__setup fixes
+ * 19.08.1999 0.28 SOUND_MIXER_IMIX fixes, reported by Gianluca <gialluca@mail.tiscalinet.it>
+ * 31.08.1999 0.29 add spin_lock_init
+ * replaced current->state = x with set_current_state(x)
+ * 03.09.1999 0.30 change read semantics for MIDI to match
+ * OSS more closely; remove possible wakeup race
+ * 28.10.1999 0.31 More waitqueue races fixed
+ * 08.01.2000 0.32 Prevent some ioctl's from returning bad count values on underrun/overrun;
+ * Tim Janik's BSE (Bedevilled Sound Engine) found this
+ * 07.02.2000 0.33 Use pci_alloc_consistent and pci_register_driver
+ * 21.11.2000 0.34 Initialize dma buffers in poll, otherwise poll may return a bogus mask
+ * 12.12.2000 0.35 More dma buffer initializations, patch from
+ * Tjeerd Mulder <tjeerd.mulder@fujitsu-siemens.com>
+ * 07.01.2001 0.36 Timeout change in wrcodec as requested by Frank Klemm <pfk@fuchs.offl.uni-jena.de>
+ * 31.01.2001 0.37 Register/Unregister gameport
+ * Fix SETTRIGGER non OSS API conformity
+ * 03.01.2003 0.38 open_mode fixes from Georg Acher <acher@in.tum.de>
+ *
+ * some important things missing in Ensoniq documentation:
+ *
+ * Experimental PCLKDIV results: play the same waveforms on both DAC1 and DAC2
+ * and vary PCLKDIV to obtain zero beat.
+ * 5512sps: 254
+ * 44100sps: 30
+ * seems to be fs = 1411200/(PCLKDIV+2)
+ *
+ * should find out when curr_sample_ct is cleared and
+ * where exactly the CCB fetches data
+ *
+ * The card uses a 22.5792 MHz crystal.
+ * The LINEIN jack may be converted to an AOUT jack by
+ * setting pin 47 (XCTL0) of the ES1370 to high.
+ * Pin 48 (XCTL1) of the ES1370 sets the +5V bias for an electretmic
+ *
+ *
+ */
+
+/*****************************************************************************/
+
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/sound.h>
+#include <linux/slab.h>
+#include <linux/soundcard.h>
+#include <linux/pci.h>
+#include <linux/smp_lock.h>
+#include <linux/init.h>
+#include <linux/poll.h>
+#include <linux/spinlock.h>
+#include <linux/gameport.h>
+#include <linux/wait.h>
+
+#include <asm/io.h>
+#include <asm/page.h>
+#include <asm/uaccess.h>
+
+/* --------------------------------------------------------------------- */
+
+#undef OSS_DOCUMENTED_MIXER_SEMANTICS
+#define DBG(x) {}
+/*#define DBG(x) {x}*/
+
+/* --------------------------------------------------------------------- */
+
+#ifndef PCI_VENDOR_ID_ENSONIQ
+#define PCI_VENDOR_ID_ENSONIQ 0x1274
+#endif
+
+#ifndef PCI_DEVICE_ID_ENSONIQ_ES1370
+#define PCI_DEVICE_ID_ENSONIQ_ES1370 0x5000
+#endif
+
+#define ES1370_MAGIC ((PCI_VENDOR_ID_ENSONIQ<<16)|PCI_DEVICE_ID_ENSONIQ_ES1370)
+
+#define ES1370_EXTENT 0x40
+#define JOY_EXTENT 8
+
+#define ES1370_REG_CONTROL 0x00
+#define ES1370_REG_STATUS 0x04
+#define ES1370_REG_UART_DATA 0x08
+#define ES1370_REG_UART_STATUS 0x09
+#define ES1370_REG_UART_CONTROL 0x09
+#define ES1370_REG_UART_TEST 0x0a
+#define ES1370_REG_MEMPAGE 0x0c
+#define ES1370_REG_CODEC 0x10
+#define ES1370_REG_SERIAL_CONTROL 0x20
+#define ES1370_REG_DAC1_SCOUNT 0x24
+#define ES1370_REG_DAC2_SCOUNT 0x28
+#define ES1370_REG_ADC_SCOUNT 0x2c
+
+#define ES1370_REG_DAC1_FRAMEADR 0xc30
+#define ES1370_REG_DAC1_FRAMECNT 0xc34
+#define ES1370_REG_DAC2_FRAMEADR 0xc38
+#define ES1370_REG_DAC2_FRAMECNT 0xc3c
+#define ES1370_REG_ADC_FRAMEADR 0xd30
+#define ES1370_REG_ADC_FRAMECNT 0xd34
+#define ES1370_REG_PHANTOM_FRAMEADR 0xd38
+#define ES1370_REG_PHANTOM_FRAMECNT 0xd3c
+
+#define ES1370_FMT_U8_MONO 0
+#define ES1370_FMT_U8_STEREO 1
+#define ES1370_FMT_S16_MONO 2
+#define ES1370_FMT_S16_STEREO 3
+#define ES1370_FMT_STEREO 1
+#define ES1370_FMT_S16 2
+#define ES1370_FMT_MASK 3
+
+static const unsigned sample_size[] = { 1, 2, 2, 4 };
+static const unsigned sample_shift[] = { 0, 1, 1, 2 };
+
+static const unsigned dac1_samplerate[] = { 5512, 11025, 22050, 44100 };
+
+#define DAC2_SRTODIV(x) (((1411200+(x)/2)/(x))-2)
+#define DAC2_DIVTOSR(x) (1411200/((x)+2))
+
+#define CTRL_ADC_STOP 0x80000000 /* 1 = ADC stopped */
+#define CTRL_XCTL1 0x40000000 /* electret mic bias */
+#define CTRL_OPEN 0x20000000 /* no function, can be read and written */
+#define CTRL_PCLKDIV 0x1fff0000 /* ADC/DAC2 clock divider */
+#define CTRL_SH_PCLKDIV 16
+#define CTRL_MSFMTSEL 0x00008000 /* MPEG serial data fmt: 0 = Sony, 1 = I2S */
+#define CTRL_M_SBB 0x00004000 /* DAC2 clock: 0 = PCLKDIV, 1 = MPEG */
+#define CTRL_WTSRSEL 0x00003000 /* DAC1 clock freq: 0=5512, 1=11025, 2=22050, 3=44100 */
+#define CTRL_SH_WTSRSEL 12
+#define CTRL_DAC_SYNC 0x00000800 /* 1 = DAC2 runs off DAC1 clock */
+#define CTRL_CCB_INTRM 0x00000400 /* 1 = CCB "voice" ints enabled */
+#define CTRL_M_CB 0x00000200 /* recording source: 0 = ADC, 1 = MPEG */
+#define CTRL_XCTL0 0x00000100 /* 0 = Line in, 1 = Line out */
+#define CTRL_BREQ 0x00000080 /* 1 = test mode (internal mem test) */
+#define CTRL_DAC1_EN 0x00000040 /* enable DAC1 */
+#define CTRL_DAC2_EN 0x00000020 /* enable DAC2 */
+#define CTRL_ADC_EN 0x00000010 /* enable ADC */
+#define CTRL_UART_EN 0x00000008 /* enable MIDI uart */
+#define CTRL_JYSTK_EN 0x00000004 /* enable Joystick port (presumably at address 0x200) */
+#define CTRL_CDC_EN 0x00000002 /* enable serial (CODEC) interface */
+#define CTRL_SERR_DIS 0x00000001 /* 1 = disable PCI SERR signal */
+
+#define STAT_INTR 0x80000000 /* wired or of all interrupt bits */
+#define STAT_CSTAT 0x00000400 /* 1 = codec busy or codec write in progress */
+#define STAT_CBUSY 0x00000200 /* 1 = codec busy */
+#define STAT_CWRIP 0x00000100 /* 1 = codec write in progress */
+#define STAT_VC 0x00000060 /* CCB int source, 0=DAC1, 1=DAC2, 2=ADC, 3=undef */
+#define STAT_SH_VC 5
+#define STAT_MCCB 0x00000010 /* CCB int pending */
+#define STAT_UART 0x00000008 /* UART int pending */
+#define STAT_DAC1 0x00000004 /* DAC1 int pending */
+#define STAT_DAC2 0x00000002 /* DAC2 int pending */
+#define STAT_ADC 0x00000001 /* ADC int pending */
+
+#define USTAT_RXINT 0x80 /* UART rx int pending */
+#define USTAT_TXINT 0x04 /* UART tx int pending */
+#define USTAT_TXRDY 0x02 /* UART tx ready */
+#define USTAT_RXRDY 0x01 /* UART rx ready */
+
+#define UCTRL_RXINTEN 0x80 /* 1 = enable RX ints */
+#define UCTRL_TXINTEN 0x60 /* TX int enable field mask */
+#define UCTRL_ENA_TXINT 0x20 /* enable TX int */
+#define UCTRL_CNTRL 0x03 /* control field */
+#define UCTRL_CNTRL_SWR 0x03 /* software reset command */
+
+#define SCTRL_P2ENDINC 0x00380000 /* */
+#define SCTRL_SH_P2ENDINC 19
+#define SCTRL_P2STINC 0x00070000 /* */
+#define SCTRL_SH_P2STINC 16
+#define SCTRL_R1LOOPSEL 0x00008000 /* 0 = loop mode */
+#define SCTRL_P2LOOPSEL 0x00004000 /* 0 = loop mode */
+#define SCTRL_P1LOOPSEL 0x00002000 /* 0 = loop mode */
+#define SCTRL_P2PAUSE 0x00001000 /* 1 = pause mode */
+#define SCTRL_P1PAUSE 0x00000800 /* 1 = pause mode */
+#define SCTRL_R1INTEN 0x00000400 /* enable interrupt */
+#define SCTRL_P2INTEN 0x00000200 /* enable interrupt */
+#define SCTRL_P1INTEN 0x00000100 /* enable interrupt */
+#define SCTRL_P1SCTRLD 0x00000080 /* reload sample count register for DAC1 */
+#define SCTRL_P2DACSEN 0x00000040 /* 1 = DAC2 play back last sample when disabled */
+#define SCTRL_R1SEB 0x00000020 /* 1 = 16bit */
+#define SCTRL_R1SMB 0x00000010 /* 1 = stereo */
+#define SCTRL_R1FMT 0x00000030 /* format mask */
+#define SCTRL_SH_R1FMT 4
+#define SCTRL_P2SEB 0x00000008 /* 1 = 16bit */
+#define SCTRL_P2SMB 0x00000004 /* 1 = stereo */
+#define SCTRL_P2FMT 0x0000000c /* format mask */
+#define SCTRL_SH_P2FMT 2
+#define SCTRL_P1SEB 0x00000002 /* 1 = 16bit */
+#define SCTRL_P1SMB 0x00000001 /* 1 = stereo */
+#define SCTRL_P1FMT 0x00000003 /* format mask */
+#define SCTRL_SH_P1FMT 0
+
+/* misc stuff */
+
+#define FMODE_DAC 4 /* slight misuse of mode_t */
+
+/* MIDI buffer sizes */
+
+#define MIDIINBUF 256
+#define MIDIOUTBUF 256
+
+#define FMODE_MIDI_SHIFT 3
+#define FMODE_MIDI_READ (FMODE_READ << FMODE_MIDI_SHIFT)
+#define FMODE_MIDI_WRITE (FMODE_WRITE << FMODE_MIDI_SHIFT)
+
+/* --------------------------------------------------------------------- */
+
+struct es1370_state {
+ /* magic */
+ unsigned int magic;
+
+ /* list of es1370 devices */
+ struct list_head devs;
+
+ /* the corresponding pci_dev structure */
+ struct pci_dev *dev;
+
+ /* soundcore stuff */
+ int dev_audio;
+ int dev_mixer;
+ int dev_dac;
+ int dev_midi;
+
+ /* hardware resources */
+ unsigned long io; /* long for SPARC */
+ unsigned int irq;
+
+ /* mixer registers; there is no HW readback */
+ struct {
+ unsigned short vol[10];
+ unsigned int recsrc;
+ unsigned int modcnt;
+ unsigned short micpreamp;
+ unsigned int imix;
+ } mix;
+
+ /* wave stuff */
+ unsigned ctrl;
+ unsigned sctrl;
+
+ spinlock_t lock;
+ struct semaphore open_sem;
+ mode_t open_mode;
+ wait_queue_head_t open_wait;
+
+ struct dmabuf {
+ void *rawbuf;
+ dma_addr_t dmaaddr;
+ unsigned buforder;
+ unsigned numfrag;
+ unsigned fragshift;
+ unsigned hwptr, swptr;
+ unsigned total_bytes;
+ int count;
+ unsigned error; /* over/underrun */
+ wait_queue_head_t wait;
+ /* redundant, but makes calculations easier */
+ unsigned fragsize;
+ unsigned dmasize;
+ unsigned fragsamples;
+ /* OSS stuff */
+ unsigned mapped:1;
+ unsigned ready:1;
+ unsigned endcleared:1;
+ unsigned enabled:1;
+ unsigned ossfragshift;
+ int ossmaxfrags;
+ unsigned subdivision;
+ } dma_dac1, dma_dac2, dma_adc;
+
+ /* The following buffer is used to point the phantom write channel to. */
+ unsigned char *bugbuf_cpu;
+ dma_addr_t bugbuf_dma;
+
+ /* midi stuff */
+ struct {
+ unsigned ird, iwr, icnt;
+ unsigned ord, owr, ocnt;
+ wait_queue_head_t iwait;
+ wait_queue_head_t owait;
+ unsigned char ibuf[MIDIINBUF];
+ unsigned char obuf[MIDIOUTBUF];
+ } midi;
+
+ struct gameport *gameport;
+ struct semaphore sem;
+};
+
+/* --------------------------------------------------------------------- */
+
+static LIST_HEAD(devs);
+
+/* --------------------------------------------------------------------- */
+
+static inline unsigned ld2(unsigned int x)
+{
+ unsigned r = 0;
+
+ if (x >= 0x10000) {
+ x >>= 16;
+ r += 16;
+ }
+ if (x >= 0x100) {
+ x >>= 8;
+ r += 8;
+ }
+ if (x >= 0x10) {
+ x >>= 4;
+ r += 4;
+ }
+ if (x >= 4) {
+ x >>= 2;
+ r += 2;
+ }
+ if (x >= 2)
+ r++;
+ return r;
+}
+
+/* --------------------------------------------------------------------- */
+
+static void wrcodec(struct es1370_state *s, unsigned char idx, unsigned char data)
+{
+ unsigned long tmo = jiffies + HZ/10, j;
+
+ do {
+ j = jiffies;
+ if (!(inl(s->io+ES1370_REG_STATUS) & STAT_CSTAT)) {
+ outw((((unsigned short)idx)<<8)|data, s->io+ES1370_REG_CODEC);
+ return;
+ }
+ schedule();
+ } while ((signed)(tmo-j) > 0);
+ printk(KERN_ERR "es1370: write to codec register timeout\n");
+}
+
+/* --------------------------------------------------------------------- */
+
+static inline void stop_adc(struct es1370_state *s)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&s->lock, flags);
+ s->ctrl &= ~CTRL_ADC_EN;
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+}
+
+static inline void stop_dac1(struct es1370_state *s)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&s->lock, flags);
+ s->ctrl &= ~CTRL_DAC1_EN;
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+}
+
+static inline void stop_dac2(struct es1370_state *s)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&s->lock, flags);
+ s->ctrl &= ~CTRL_DAC2_EN;
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+}
+
+static void start_dac1(struct es1370_state *s)
+{
+ unsigned long flags;
+ unsigned fragremain, fshift;
+
+ spin_lock_irqsave(&s->lock, flags);
+ if (!(s->ctrl & CTRL_DAC1_EN) && (s->dma_dac1.mapped || s->dma_dac1.count > 0)
+ && s->dma_dac1.ready) {
+ s->ctrl |= CTRL_DAC1_EN;
+ s->sctrl = (s->sctrl & ~(SCTRL_P1LOOPSEL | SCTRL_P1PAUSE | SCTRL_P1SCTRLD)) | SCTRL_P1INTEN;
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ fragremain = ((- s->dma_dac1.hwptr) & (s->dma_dac1.fragsize-1));
+ fshift = sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
+ if (fragremain < 2*fshift)
+ fragremain = s->dma_dac1.fragsize;
+ outl((fragremain >> fshift) - 1, s->io+ES1370_REG_DAC1_SCOUNT);
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ outl((s->dma_dac1.fragsize >> fshift) - 1, s->io+ES1370_REG_DAC1_SCOUNT);
+ }
+ spin_unlock_irqrestore(&s->lock, flags);
+}
+
+static void start_dac2(struct es1370_state *s)
+{
+ unsigned long flags;
+ unsigned fragremain, fshift;
+
+ spin_lock_irqsave(&s->lock, flags);
+ if (!(s->ctrl & CTRL_DAC2_EN) && (s->dma_dac2.mapped || s->dma_dac2.count > 0)
+ && s->dma_dac2.ready) {
+ s->ctrl |= CTRL_DAC2_EN;
+ s->sctrl = (s->sctrl & ~(SCTRL_P2LOOPSEL | SCTRL_P2PAUSE | SCTRL_P2DACSEN |
+ SCTRL_P2ENDINC | SCTRL_P2STINC)) | SCTRL_P2INTEN |
+ (((s->sctrl & SCTRL_P2FMT) ? 2 : 1) << SCTRL_SH_P2ENDINC) |
+ (0 << SCTRL_SH_P2STINC);
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ fragremain = ((- s->dma_dac2.hwptr) & (s->dma_dac2.fragsize-1));
+ fshift = sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
+ if (fragremain < 2*fshift)
+ fragremain = s->dma_dac2.fragsize;
+ outl((fragremain >> fshift) - 1, s->io+ES1370_REG_DAC2_SCOUNT);
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ outl((s->dma_dac2.fragsize >> fshift) - 1, s->io+ES1370_REG_DAC2_SCOUNT);
+ }
+ spin_unlock_irqrestore(&s->lock, flags);
+}
+
+static void start_adc(struct es1370_state *s)
+{
+ unsigned long flags;
+ unsigned fragremain, fshift;
+
+ spin_lock_irqsave(&s->lock, flags);
+ if (!(s->ctrl & CTRL_ADC_EN) && (s->dma_adc.mapped || s->dma_adc.count < (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize))
+ && s->dma_adc.ready) {
+ s->ctrl |= CTRL_ADC_EN;
+ s->sctrl = (s->sctrl & ~SCTRL_R1LOOPSEL) | SCTRL_R1INTEN;
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ fragremain = ((- s->dma_adc.hwptr) & (s->dma_adc.fragsize-1));
+ fshift = sample_shift[(s->sctrl & SCTRL_R1FMT) >> SCTRL_SH_R1FMT];
+ if (fragremain < 2*fshift)
+ fragremain = s->dma_adc.fragsize;
+ outl((fragremain >> fshift) - 1, s->io+ES1370_REG_ADC_SCOUNT);
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ outl((s->dma_adc.fragsize >> fshift) - 1, s->io+ES1370_REG_ADC_SCOUNT);
+ }
+ spin_unlock_irqrestore(&s->lock, flags);
+}
+
+/* --------------------------------------------------------------------- */
+
+#define DMABUF_DEFAULTORDER (17-PAGE_SHIFT)
+#define DMABUF_MINORDER 1
+
+static inline void dealloc_dmabuf(struct es1370_state *s, struct dmabuf *db)
+{
+ struct page *page, *pend;
+
+ if (db->rawbuf) {
+ /* undo marking the pages as reserved */
+ pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
+ for (page = virt_to_page(db->rawbuf); page <= pend; page++)
+ ClearPageReserved(page);
+ pci_free_consistent(s->dev, PAGE_SIZE << db->buforder, db->rawbuf, db->dmaaddr);
+ }
+ db->rawbuf = NULL;
+ db->mapped = db->ready = 0;
+}
+
+static int prog_dmabuf(struct es1370_state *s, struct dmabuf *db, unsigned rate, unsigned fmt, unsigned reg)
+{
+ int order;
+ unsigned bytepersec;
+ unsigned bufs;
+ struct page *page, *pend;
+
+ db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
+ if (!db->rawbuf) {
+ db->ready = db->mapped = 0;
+ for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--)
+ if ((db->rawbuf = pci_alloc_consistent(s->dev, PAGE_SIZE << order, &db->dmaaddr)))
+ break;
+ if (!db->rawbuf)
+ return -ENOMEM;
+ db->buforder = order;
+ /* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */
+ pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
+ for (page = virt_to_page(db->rawbuf); page <= pend; page++)
+ SetPageReserved(page);
+ }
+ fmt &= ES1370_FMT_MASK;
+ bytepersec = rate << sample_shift[fmt];
+ bufs = PAGE_SIZE << db->buforder;
+ if (db->ossfragshift) {
+ if ((1000 << db->ossfragshift) < bytepersec)
+ db->fragshift = ld2(bytepersec/1000);
+ else
+ db->fragshift = db->ossfragshift;
+ } else {
+ db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1));
+ if (db->fragshift < 3)
+ db->fragshift = 3;
+ }
+ db->numfrag = bufs >> db->fragshift;
+ while (db->numfrag < 4 && db->fragshift > 3) {
+ db->fragshift--;
+ db->numfrag = bufs >> db->fragshift;
+ }
+ db->fragsize = 1 << db->fragshift;
+ if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
+ db->numfrag = db->ossmaxfrags;
+ db->fragsamples = db->fragsize >> sample_shift[fmt];
+ db->dmasize = db->numfrag << db->fragshift;
+ memset(db->rawbuf, (fmt & ES1370_FMT_S16) ? 0 : 0x80, db->dmasize);
+ outl((reg >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
+ outl(db->dmaaddr, s->io+(reg & 0xff));
+ outl((db->dmasize >> 2)-1, s->io+((reg + 4) & 0xff));
+ db->enabled = 1;
+ db->ready = 1;
+ return 0;
+}
+
+static inline int prog_dmabuf_adc(struct es1370_state *s)
+{
+ stop_adc(s);
+ return prog_dmabuf(s, &s->dma_adc, DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV),
+ (s->sctrl >> SCTRL_SH_R1FMT) & ES1370_FMT_MASK, ES1370_REG_ADC_FRAMEADR);
+}
+
+static inline int prog_dmabuf_dac2(struct es1370_state *s)
+{
+ stop_dac2(s);
+ return prog_dmabuf(s, &s->dma_dac2, DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV),
+ (s->sctrl >> SCTRL_SH_P2FMT) & ES1370_FMT_MASK, ES1370_REG_DAC2_FRAMEADR);
+}
+
+static inline int prog_dmabuf_dac1(struct es1370_state *s)
+{
+ stop_dac1(s);
+ return prog_dmabuf(s, &s->dma_dac1, dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL],
+ (s->sctrl >> SCTRL_SH_P1FMT) & ES1370_FMT_MASK, ES1370_REG_DAC1_FRAMEADR);
+}
+
+static inline unsigned get_hwptr(struct es1370_state *s, struct dmabuf *db, unsigned reg)
+{
+ unsigned hwptr, diff;
+
+ outl((reg >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
+ hwptr = (inl(s->io+(reg & 0xff)) >> 14) & 0x3fffc;
+ diff = (db->dmasize + hwptr - db->hwptr) % db->dmasize;
+ db->hwptr = hwptr;
+ return diff;
+}
+
+static inline void clear_advance(void *buf, unsigned bsize, unsigned bptr, unsigned len, unsigned char c)
+{
+ if (bptr + len > bsize) {
+ unsigned x = bsize - bptr;
+ memset(((char *)buf) + bptr, c, x);
+ bptr = 0;
+ len -= x;
+ }
+ memset(((char *)buf) + bptr, c, len);
+}
+
+/* call with spinlock held! */
+static void es1370_update_ptr(struct es1370_state *s)
+{
+ int diff;
+
+ /* update ADC pointer */
+ if (s->ctrl & CTRL_ADC_EN) {
+ diff = get_hwptr(s, &s->dma_adc, ES1370_REG_ADC_FRAMECNT);
+ s->dma_adc.total_bytes += diff;
+ s->dma_adc.count += diff;
+ if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
+ wake_up(&s->dma_adc.wait);
+ if (!s->dma_adc.mapped) {
+ if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) {
+ s->ctrl &= ~CTRL_ADC_EN;
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ s->dma_adc.error++;
+ }
+ }
+ }
+ /* update DAC1 pointer */
+ if (s->ctrl & CTRL_DAC1_EN) {
+ diff = get_hwptr(s, &s->dma_dac1, ES1370_REG_DAC1_FRAMECNT);
+ s->dma_dac1.total_bytes += diff;
+ if (s->dma_dac1.mapped) {
+ s->dma_dac1.count += diff;
+ if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
+ wake_up(&s->dma_dac1.wait);
+ } else {
+ s->dma_dac1.count -= diff;
+ if (s->dma_dac1.count <= 0) {
+ s->ctrl &= ~CTRL_DAC1_EN;
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ s->dma_dac1.error++;
+ } else if (s->dma_dac1.count <= (signed)s->dma_dac1.fragsize && !s->dma_dac1.endcleared) {
+ clear_advance(s->dma_dac1.rawbuf, s->dma_dac1.dmasize, s->dma_dac1.swptr,
+ s->dma_dac1.fragsize, (s->sctrl & SCTRL_P1SEB) ? 0 : 0x80);
+ s->dma_dac1.endcleared = 1;
+ }
+ if (s->dma_dac1.count + (signed)s->dma_dac1.fragsize <= (signed)s->dma_dac1.dmasize)
+ wake_up(&s->dma_dac1.wait);
+ }
+ }
+ /* update DAC2 pointer */
+ if (s->ctrl & CTRL_DAC2_EN) {
+ diff = get_hwptr(s, &s->dma_dac2, ES1370_REG_DAC2_FRAMECNT);
+ s->dma_dac2.total_bytes += diff;
+ if (s->dma_dac2.mapped) {
+ s->dma_dac2.count += diff;
+ if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
+ wake_up(&s->dma_dac2.wait);
+ } else {
+ s->dma_dac2.count -= diff;
+ if (s->dma_dac2.count <= 0) {
+ s->ctrl &= ~CTRL_DAC2_EN;
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ s->dma_dac2.error++;
+ } else if (s->dma_dac2.count <= (signed)s->dma_dac2.fragsize && !s->dma_dac2.endcleared) {
+ clear_advance(s->dma_dac2.rawbuf, s->dma_dac2.dmasize, s->dma_dac2.swptr,
+ s->dma_dac2.fragsize, (s->sctrl & SCTRL_P2SEB) ? 0 : 0x80);
+ s->dma_dac2.endcleared = 1;
+ }
+ if (s->dma_dac2.count + (signed)s->dma_dac2.fragsize <= (signed)s->dma_dac2.dmasize)
+ wake_up(&s->dma_dac2.wait);
+ }
+ }
+}
+
+/* hold spinlock for the following! */
+static void es1370_handle_midi(struct es1370_state *s)
+{
+ unsigned char ch;
+ int wake;
+
+ if (!(s->ctrl & CTRL_UART_EN))
+ return;
+ wake = 0;
+ while (inb(s->io+ES1370_REG_UART_STATUS) & USTAT_RXRDY) {
+ ch = inb(s->io+ES1370_REG_UART_DATA);
+ if (s->midi.icnt < MIDIINBUF) {
+ s->midi.ibuf[s->midi.iwr] = ch;
+ s->midi.iwr = (s->midi.iwr + 1) % MIDIINBUF;
+ s->midi.icnt++;
+ }
+ wake = 1;
+ }
+ if (wake)
+ wake_up(&s->midi.iwait);
+ wake = 0;
+ while ((inb(s->io+ES1370_REG_UART_STATUS) & USTAT_TXRDY) && s->midi.ocnt > 0) {
+ outb(s->midi.obuf[s->midi.ord], s->io+ES1370_REG_UART_DATA);
+ s->midi.ord = (s->midi.ord + 1) % MIDIOUTBUF;
+ s->midi.ocnt--;
+ if (s->midi.ocnt < MIDIOUTBUF-16)
+ wake = 1;
+ }
+ if (wake)
+ wake_up(&s->midi.owait);
+ outb((s->midi.ocnt > 0) ? UCTRL_RXINTEN | UCTRL_ENA_TXINT : UCTRL_RXINTEN, s->io+ES1370_REG_UART_CONTROL);
+}
+
+static irqreturn_t es1370_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct es1370_state *s = (struct es1370_state *)dev_id;
+ unsigned int intsrc, sctl;
+
+ /* fastpath out, to ease interrupt sharing */
+ intsrc = inl(s->io+ES1370_REG_STATUS);
+ if (!(intsrc & 0x80000000))
+ return IRQ_NONE;
+ spin_lock(&s->lock);
+ /* clear audio interrupts first */
+ sctl = s->sctrl;
+ if (intsrc & STAT_ADC)
+ sctl &= ~SCTRL_R1INTEN;
+ if (intsrc & STAT_DAC1)
+ sctl &= ~SCTRL_P1INTEN;
+ if (intsrc & STAT_DAC2)
+ sctl &= ~SCTRL_P2INTEN;
+ outl(sctl, s->io+ES1370_REG_SERIAL_CONTROL);
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ es1370_update_ptr(s);
+ es1370_handle_midi(s);
+ spin_unlock(&s->lock);
+ return IRQ_HANDLED;
+}
+
+/* --------------------------------------------------------------------- */
+
+static const char invalid_magic[] = KERN_CRIT "es1370: invalid magic value\n";
+
+#define VALIDATE_STATE(s) \
+({ \
+ if (!(s) || (s)->magic != ES1370_MAGIC) { \
+ printk(invalid_magic); \
+ return -ENXIO; \
+ } \
+})
+
+/* --------------------------------------------------------------------- */
+
+static const struct {
+ unsigned volidx:4;
+ unsigned left:4;
+ unsigned right:4;
+ unsigned stereo:1;
+ unsigned recmask:13;
+ unsigned avail:1;
+} mixtable[SOUND_MIXER_NRDEVICES] = {
+ [SOUND_MIXER_VOLUME] = { 0, 0x0, 0x1, 1, 0x0000, 1 }, /* master */
+ [SOUND_MIXER_PCM] = { 1, 0x2, 0x3, 1, 0x0400, 1 }, /* voice */
+ [SOUND_MIXER_SYNTH] = { 2, 0x4, 0x5, 1, 0x0060, 1 }, /* FM */
+ [SOUND_MIXER_CD] = { 3, 0x6, 0x7, 1, 0x0006, 1 }, /* CD */
+ [SOUND_MIXER_LINE] = { 4, 0x8, 0x9, 1, 0x0018, 1 }, /* Line */
+ [SOUND_MIXER_LINE1] = { 5, 0xa, 0xb, 1, 0x1800, 1 }, /* AUX */
+ [SOUND_MIXER_LINE2] = { 6, 0xc, 0x0, 0, 0x0100, 1 }, /* Mono1 */
+ [SOUND_MIXER_LINE3] = { 7, 0xd, 0x0, 0, 0x0200, 1 }, /* Mono2 */
+ [SOUND_MIXER_MIC] = { 8, 0xe, 0x0, 0, 0x0001, 1 }, /* Mic */
+ [SOUND_MIXER_OGAIN] = { 9, 0xf, 0x0, 0, 0x0000, 1 } /* mono out */
+};
+
+static void set_recsrc(struct es1370_state *s, unsigned int val)
+{
+ unsigned int i, j;
+
+ for (j = i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
+ if (!(val & (1 << i)))
+ continue;
+ if (!mixtable[i].recmask) {
+ val &= ~(1 << i);
+ continue;
+ }
+ j |= mixtable[i].recmask;
+ }
+ s->mix.recsrc = val;
+ wrcodec(s, 0x12, j & 0xd5);
+ wrcodec(s, 0x13, j & 0xaa);
+ wrcodec(s, 0x14, (j >> 8) & 0x17);
+ wrcodec(s, 0x15, (j >> 8) & 0x0f);
+ i = (j & 0x37f) | ((j << 1) & 0x3000) | 0xc60;
+ if (!s->mix.imix) {
+ i &= 0xff60; /* mute record and line monitor */
+ }
+ wrcodec(s, 0x10, i);
+ wrcodec(s, 0x11, i >> 8);
+}
+
+static int mixer_ioctl(struct es1370_state *s, unsigned int cmd, unsigned long arg)
+{
+ unsigned long flags;
+ int i, val;
+ unsigned char l, r, rl, rr;
+ int __user *p = (int __user *)arg;
+
+ VALIDATE_STATE(s);
+ if (cmd == SOUND_MIXER_PRIVATE1) {
+ /* enable/disable/query mixer preamp */
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val != -1) {
+ s->mix.micpreamp = !!val;
+ wrcodec(s, 0x19, s->mix.micpreamp);
+ }
+ return put_user(s->mix.micpreamp, p);
+ }
+ if (cmd == SOUND_MIXER_PRIVATE2) {
+ /* enable/disable/query use of linein as second lineout */
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val != -1) {
+ spin_lock_irqsave(&s->lock, flags);
+ if (val)
+ s->ctrl |= CTRL_XCTL0;
+ else
+ s->ctrl &= ~CTRL_XCTL0;
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+ }
+ return put_user((s->ctrl & CTRL_XCTL0) ? 1 : 0, p);
+ }
+ if (cmd == SOUND_MIXER_PRIVATE3) {
+ /* enable/disable/query microphone impedance setting */
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val != -1) {
+ spin_lock_irqsave(&s->lock, flags);
+ if (val)
+ s->ctrl |= CTRL_XCTL1;
+ else
+ s->ctrl &= ~CTRL_XCTL1;
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+ }
+ return put_user((s->ctrl & CTRL_XCTL1) ? 1 : 0, p);
+ }
+ if (cmd == SOUND_MIXER_INFO) {
+ mixer_info info;
+ strncpy(info.id, "ES1370", sizeof(info.id));
+ strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
+ info.modify_counter = s->mix.modcnt;
+ if (copy_to_user((void __user *)arg, &info, sizeof(info)))
+ return -EFAULT;
+ return 0;
+ }
+ if (cmd == SOUND_OLD_MIXER_INFO) {
+ _old_mixer_info info;
+ strncpy(info.id, "ES1370", sizeof(info.id));
+ strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
+ if (copy_to_user((void __user *)arg, &info, sizeof(info)))
+ return -EFAULT;
+ return 0;
+ }
+ if (cmd == OSS_GETVERSION)
+ return put_user(SOUND_VERSION, p);
+ if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int))
+ return -EINVAL;
+ if (_SIOC_DIR(cmd) == _SIOC_READ) {
+ switch (_IOC_NR(cmd)) {
+ case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
+ return put_user(s->mix.recsrc, p);
+
+ case SOUND_MIXER_DEVMASK: /* Arg contains a bit for each supported device */
+ val = SOUND_MASK_IMIX;
+ for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
+ if (mixtable[i].avail)
+ val |= 1 << i;
+ return put_user(val, p);
+
+ case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
+ for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
+ if (mixtable[i].recmask)
+ val |= 1 << i;
+ return put_user(val, p);
+
+ case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
+ for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
+ if (mixtable[i].stereo)
+ val |= 1 << i;
+ return put_user(val, p);
+
+ case SOUND_MIXER_CAPS:
+ return put_user(0, p);
+
+ case SOUND_MIXER_IMIX:
+ return put_user(s->mix.imix, p);
+
+ default:
+ i = _IOC_NR(cmd);
+ if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
+ return -EINVAL;
+ return put_user(s->mix.vol[mixtable[i].volidx], p);
+ }
+ }
+ if (_SIOC_DIR(cmd) != (_SIOC_READ|_SIOC_WRITE))
+ return -EINVAL;
+ s->mix.modcnt++;
+ switch (_IOC_NR(cmd)) {
+
+ case SOUND_MIXER_IMIX:
+ if (get_user(s->mix.imix, p))
+ return -EFAULT;
+ set_recsrc(s, s->mix.recsrc);
+ return 0;
+
+ case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
+ if (get_user(val, p))
+ return -EFAULT;
+ set_recsrc(s, val);
+ return 0;
+
+ default:
+ i = _IOC_NR(cmd);
+ if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
+ return -EINVAL;
+ if (get_user(val, p))
+ return -EFAULT;
+ l = val & 0xff;
+ if (l > 100)
+ l = 100;
+ if (mixtable[i].stereo) {
+ r = (val >> 8) & 0xff;
+ if (r > 100)
+ r = 100;
+ if (l < 7) {
+ rl = 0x80;
+ l = 0;
+ } else {
+ rl = 31 - ((l - 7) / 3);
+ l = (31 - rl) * 3 + 7;
+ }
+ if (r < 7) {
+ rr = 0x80;
+ r = 0;
+ } else {
+ rr = 31 - ((r - 7) / 3);
+ r = (31 - rr) * 3 + 7;
+ }
+ wrcodec(s, mixtable[i].right, rr);
+ } else {
+ if (mixtable[i].left == 15) {
+ if (l < 2) {
+ rr = rl = 0x80;
+ r = l = 0;
+ } else {
+ rl = 7 - ((l - 2) / 14);
+ r = l = (7 - rl) * 14 + 2;
+ }
+ } else {
+ if (l < 7) {
+ rl = 0x80;
+ r = l = 0;
+ } else {
+ rl = 31 - ((l - 7) / 3);
+ r = l = (31 - rl) * 3 + 7;
+ }
+ }
+ }
+ wrcodec(s, mixtable[i].left, rl);
+#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
+ s->mix.vol[mixtable[i].volidx] = ((unsigned int)r << 8) | l;
+#else
+ s->mix.vol[mixtable[i].volidx] = val;
+#endif
+ return put_user(s->mix.vol[mixtable[i].volidx], p);
+ }
+}
+
+/* --------------------------------------------------------------------- */
+
+static int es1370_open_mixdev(struct inode *inode, struct file *file)
+{
+ unsigned int minor = iminor(inode);
+ struct list_head *list;
+ struct es1370_state *s;
+
+ for (list = devs.next; ; list = list->next) {
+ if (list == &devs)
+ return -ENODEV;
+ s = list_entry(list, struct es1370_state, devs);
+ if (s->dev_mixer == minor)
+ break;
+ }
+ VALIDATE_STATE(s);
+ file->private_data = s;
+ return nonseekable_open(inode, file);
+}
+
+static int es1370_release_mixdev(struct inode *inode, struct file *file)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+
+ VALIDATE_STATE(s);
+ return 0;
+}
+
+static int es1370_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+ return mixer_ioctl((struct es1370_state *)file->private_data, cmd, arg);
+}
+
+static /*const*/ struct file_operations es1370_mixer_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .ioctl = es1370_ioctl_mixdev,
+ .open = es1370_open_mixdev,
+ .release = es1370_release_mixdev,
+};
+
+/* --------------------------------------------------------------------- */
+
+static int drain_dac1(struct es1370_state *s, int nonblock)
+{
+ DECLARE_WAITQUEUE(wait, current);
+ unsigned long flags;
+ int count, tmo;
+
+ if (s->dma_dac1.mapped || !s->dma_dac1.ready)
+ return 0;
+ add_wait_queue(&s->dma_dac1.wait, &wait);
+ for (;;) {
+ __set_current_state(TASK_INTERRUPTIBLE);
+ spin_lock_irqsave(&s->lock, flags);
+ count = s->dma_dac1.count;
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (count <= 0)
+ break;
+ if (signal_pending(current))
+ break;
+ if (nonblock) {
+ remove_wait_queue(&s->dma_dac1.wait, &wait);
+ set_current_state(TASK_RUNNING);
+ return -EBUSY;
+ }
+ tmo = 3 * HZ * (count + s->dma_dac1.fragsize) / 2
+ / dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL];
+ tmo >>= sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
+ if (!schedule_timeout(tmo + 1))
+ DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
+ }
+ remove_wait_queue(&s->dma_dac1.wait, &wait);
+ set_current_state(TASK_RUNNING);
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+ return 0;
+}
+
+static int drain_dac2(struct es1370_state *s, int nonblock)
+{
+ DECLARE_WAITQUEUE(wait, current);
+ unsigned long flags;
+ int count, tmo;
+
+ if (s->dma_dac2.mapped || !s->dma_dac2.ready)
+ return 0;
+ add_wait_queue(&s->dma_dac2.wait, &wait);
+ for (;;) {
+ __set_current_state(TASK_INTERRUPTIBLE);
+ spin_lock_irqsave(&s->lock, flags);
+ count = s->dma_dac2.count;
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (count <= 0)
+ break;
+ if (signal_pending(current))
+ break;
+ if (nonblock) {
+ remove_wait_queue(&s->dma_dac2.wait, &wait);
+ set_current_state(TASK_RUNNING);
+ return -EBUSY;
+ }
+ tmo = 3 * HZ * (count + s->dma_dac2.fragsize) / 2
+ / DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV);
+ tmo >>= sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
+ if (!schedule_timeout(tmo + 1))
+ DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
+ }
+ remove_wait_queue(&s->dma_dac2.wait, &wait);
+ set_current_state(TASK_RUNNING);
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+ return 0;
+}
+
+/* --------------------------------------------------------------------- */
+
+static ssize_t es1370_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+ DECLARE_WAITQUEUE(wait, current);
+ ssize_t ret = 0;
+ unsigned long flags;
+ unsigned swptr;
+ int cnt;
+
+ VALIDATE_STATE(s);
+ if (s->dma_adc.mapped)
+ return -ENXIO;
+ if (!access_ok(VERIFY_WRITE, buffer, count))
+ return -EFAULT;
+ down(&s->sem);
+ if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
+ goto out;
+
+ add_wait_queue(&s->dma_adc.wait, &wait);
+ while (count > 0) {
+ spin_lock_irqsave(&s->lock, flags);
+ swptr = s->dma_adc.swptr;
+ cnt = s->dma_adc.dmasize-swptr;
+ if (s->dma_adc.count < cnt)
+ cnt = s->dma_adc.count;
+ if (cnt <= 0)
+ __set_current_state(TASK_INTERRUPTIBLE);
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (cnt > count)
+ cnt = count;
+ if (cnt <= 0) {
+ if (s->dma_adc.enabled)
+ start_adc(s);
+ if (file->f_flags & O_NONBLOCK) {
+ if (!ret)
+ ret = -EAGAIN;
+ goto out;
+ }
+ up(&s->sem);
+ schedule();
+ if (signal_pending(current)) {
+ if (!ret)
+ ret = -ERESTARTSYS;
+ goto out;
+ }
+ down(&s->sem);
+ if (s->dma_adc.mapped)
+ {
+ ret = -ENXIO;
+ goto out;
+ }
+ continue;
+ }
+ if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt)) {
+ if (!ret)
+ ret = -EFAULT;
+ goto out;
+ }
+ swptr = (swptr + cnt) % s->dma_adc.dmasize;
+ spin_lock_irqsave(&s->lock, flags);
+ s->dma_adc.swptr = swptr;
+ s->dma_adc.count -= cnt;
+ spin_unlock_irqrestore(&s->lock, flags);
+ count -= cnt;
+ buffer += cnt;
+ ret += cnt;
+ if (s->dma_adc.enabled)
+ start_adc(s);
+ }
+out:
+ up(&s->sem);
+ remove_wait_queue(&s->dma_adc.wait, &wait);
+ set_current_state(TASK_RUNNING);
+ return ret;
+}
+
+static ssize_t es1370_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+ DECLARE_WAITQUEUE(wait, current);
+ ssize_t ret = 0;
+ unsigned long flags;
+ unsigned swptr;
+ int cnt;
+
+ VALIDATE_STATE(s);
+ if (s->dma_dac2.mapped)
+ return -ENXIO;
+ if (!access_ok(VERIFY_READ, buffer, count))
+ return -EFAULT;
+ down(&s->sem);
+ if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
+ goto out;
+ ret = 0;
+ add_wait_queue(&s->dma_dac2.wait, &wait);
+ while (count > 0) {
+ spin_lock_irqsave(&s->lock, flags);
+ if (s->dma_dac2.count < 0) {
+ s->dma_dac2.count = 0;
+ s->dma_dac2.swptr = s->dma_dac2.hwptr;
+ }
+ swptr = s->dma_dac2.swptr;
+ cnt = s->dma_dac2.dmasize-swptr;
+ if (s->dma_dac2.count + cnt > s->dma_dac2.dmasize)
+ cnt = s->dma_dac2.dmasize - s->dma_dac2.count;
+ if (cnt <= 0)
+ __set_current_state(TASK_INTERRUPTIBLE);
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (cnt > count)
+ cnt = count;
+ if (cnt <= 0) {
+ if (s->dma_dac2.enabled)
+ start_dac2(s);
+ if (file->f_flags & O_NONBLOCK) {
+ if (!ret)
+ ret = -EAGAIN;
+ goto out;
+ }
+ up(&s->sem);
+ schedule();
+ if (signal_pending(current)) {
+ if (!ret)
+ ret = -ERESTARTSYS;
+ goto out;
+ }
+ down(&s->sem);
+ if (s->dma_dac2.mapped)
+ {
+ ret = -ENXIO;
+ goto out;
+ }
+ continue;
+ }
+ if (copy_from_user(s->dma_dac2.rawbuf + swptr, buffer, cnt)) {
+ if (!ret)
+ ret = -EFAULT;
+ goto out;
+ }
+ swptr = (swptr + cnt) % s->dma_dac2.dmasize;
+ spin_lock_irqsave(&s->lock, flags);
+ s->dma_dac2.swptr = swptr;
+ s->dma_dac2.count += cnt;
+ s->dma_dac2.endcleared = 0;
+ spin_unlock_irqrestore(&s->lock, flags);
+ count -= cnt;
+ buffer += cnt;
+ ret += cnt;
+ if (s->dma_dac2.enabled)
+ start_dac2(s);
+ }
+out:
+ up(&s->sem);
+ remove_wait_queue(&s->dma_dac2.wait, &wait);
+ set_current_state(TASK_RUNNING);
+ return ret;
+}
+
+/* No kernel lock - we have our own spinlock */
+static unsigned int es1370_poll(struct file *file, struct poll_table_struct *wait)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+ unsigned long flags;
+ unsigned int mask = 0;
+
+ VALIDATE_STATE(s);
+ if (file->f_mode & FMODE_WRITE) {
+ if (!s->dma_dac2.ready && prog_dmabuf_dac2(s))
+ return 0;
+ poll_wait(file, &s->dma_dac2.wait, wait);
+ }
+ if (file->f_mode & FMODE_READ) {
+ if (!s->dma_adc.ready && prog_dmabuf_adc(s))
+ return 0;
+ poll_wait(file, &s->dma_adc.wait, wait);
+ }
+ spin_lock_irqsave(&s->lock, flags);
+ es1370_update_ptr(s);
+ if (file->f_mode & FMODE_READ) {
+ if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
+ mask |= POLLIN | POLLRDNORM;
+ }
+ if (file->f_mode & FMODE_WRITE) {
+ if (s->dma_dac2.mapped) {
+ if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
+ mask |= POLLOUT | POLLWRNORM;
+ } else {
+ if ((signed)s->dma_dac2.dmasize >= s->dma_dac2.count + (signed)s->dma_dac2.fragsize)
+ mask |= POLLOUT | POLLWRNORM;
+ }
+ }
+ spin_unlock_irqrestore(&s->lock, flags);
+ return mask;
+}
+
+static int es1370_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+ struct dmabuf *db;
+ int ret = 0;
+ unsigned long size;
+
+ VALIDATE_STATE(s);
+ lock_kernel();
+ down(&s->sem);
+ if (vma->vm_flags & VM_WRITE) {
+ if ((ret = prog_dmabuf_dac2(s)) != 0) {
+ goto out;
+ }
+ db = &s->dma_dac2;
+ } else if (vma->vm_flags & VM_READ) {
+ if ((ret = prog_dmabuf_adc(s)) != 0) {
+ goto out;
+ }
+ db = &s->dma_adc;
+ } else {
+ ret = -EINVAL;
+ goto out;
+ }
+ if (vma->vm_pgoff != 0) {
+ ret = -EINVAL;
+ goto out;
+ }
+ size = vma->vm_end - vma->vm_start;
+ if (size > (PAGE_SIZE << db->buforder)) {
+ ret = -EINVAL;
+ goto out;
+ }
+ if (remap_pfn_range(vma, vma->vm_start,
+ virt_to_phys(db->rawbuf) >> PAGE_SHIFT,
+ size, vma->vm_page_prot)) {
+ ret = -EAGAIN;
+ goto out;
+ }
+ db->mapped = 1;
+out:
+ up(&s->sem);
+ unlock_kernel();
+ return ret;
+}
+
+static int es1370_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+ unsigned long flags;
+ audio_buf_info abinfo;
+ count_info cinfo;
+ int count;
+ int val, mapped, ret;
+ void __user *argp = (void __user *)arg;
+ int __user *p = argp;
+
+ VALIDATE_STATE(s);
+ mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac2.mapped) ||
+ ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
+ switch (cmd) {
+ case OSS_GETVERSION:
+ return put_user(SOUND_VERSION, p);
+
+ case SNDCTL_DSP_SYNC:
+ if (file->f_mode & FMODE_WRITE)
+ return drain_dac2(s, 0/*file->f_flags & O_NONBLOCK*/);
+ return 0;
+
+ case SNDCTL_DSP_SETDUPLEX:
+ return 0;
+
+ case SNDCTL_DSP_GETCAPS:
+ return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p);
+
+ case SNDCTL_DSP_RESET:
+ if (file->f_mode & FMODE_WRITE) {
+ stop_dac2(s);
+ synchronize_irq(s->irq);
+ s->dma_dac2.swptr = s->dma_dac2.hwptr = s->dma_dac2.count = s->dma_dac2.total_bytes = 0;
+ }
+ if (file->f_mode & FMODE_READ) {
+ stop_adc(s);
+ synchronize_irq(s->irq);
+ s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
+ }
+ return 0;
+
+ case SNDCTL_DSP_SPEED:
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val >= 0) {
+ if (s->open_mode & (~file->f_mode) & (FMODE_READ|FMODE_WRITE))
+ return -EINVAL;
+ if (val < 4000)
+ val = 4000;
+ if (val > 50000)
+ val = 50000;
+ stop_adc(s);
+ stop_dac2(s);
+ s->dma_adc.ready = s->dma_dac2.ready = 0;
+ spin_lock_irqsave(&s->lock, flags);
+ s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(val) << CTRL_SH_PCLKDIV);
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+ }
+ return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), p);
+
+ case SNDCTL_DSP_STEREO:
+ if (get_user(val, p))
+ return -EFAULT;
+ if (file->f_mode & FMODE_READ) {
+ stop_adc(s);
+ s->dma_adc.ready = 0;
+ spin_lock_irqsave(&s->lock, flags);
+ if (val)
+ s->sctrl |= SCTRL_R1SMB;
+ else
+ s->sctrl &= ~SCTRL_R1SMB;
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+ }
+ if (file->f_mode & FMODE_WRITE) {
+ stop_dac2(s);
+ s->dma_dac2.ready = 0;
+ spin_lock_irqsave(&s->lock, flags);
+ if (val)
+ s->sctrl |= SCTRL_P2SMB;
+ else
+ s->sctrl &= ~SCTRL_P2SMB;
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+ }
+ return 0;
+
+ case SNDCTL_DSP_CHANNELS:
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val != 0) {
+ if (file->f_mode & FMODE_READ) {
+ stop_adc(s);
+ s->dma_adc.ready = 0;
+ spin_lock_irqsave(&s->lock, flags);
+ if (val >= 2)
+ s->sctrl |= SCTRL_R1SMB;
+ else
+ s->sctrl &= ~SCTRL_R1SMB;
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+ }
+ if (file->f_mode & FMODE_WRITE) {
+ stop_dac2(s);
+ s->dma_dac2.ready = 0;
+ spin_lock_irqsave(&s->lock, flags);
+ if (val >= 2)
+ s->sctrl |= SCTRL_P2SMB;
+ else
+ s->sctrl &= ~SCTRL_P2SMB;
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+ }
+ }
+ return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ? 2 : 1, p);
+
+ case SNDCTL_DSP_GETFMTS: /* Returns a mask */
+ return put_user(AFMT_S16_LE|AFMT_U8, p);
+
+ case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val != AFMT_QUERY) {
+ if (file->f_mode & FMODE_READ) {
+ stop_adc(s);
+ s->dma_adc.ready = 0;
+ spin_lock_irqsave(&s->lock, flags);
+ if (val == AFMT_S16_LE)
+ s->sctrl |= SCTRL_R1SEB;
+ else
+ s->sctrl &= ~SCTRL_R1SEB;
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+ }
+ if (file->f_mode & FMODE_WRITE) {
+ stop_dac2(s);
+ s->dma_dac2.ready = 0;
+ spin_lock_irqsave(&s->lock, flags);
+ if (val == AFMT_S16_LE)
+ s->sctrl |= SCTRL_P2SEB;
+ else
+ s->sctrl &= ~SCTRL_P2SEB;
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+ }
+ }
+ return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
+ AFMT_S16_LE : AFMT_U8, p);
+
+ case SNDCTL_DSP_POST:
+ return 0;
+
+ case SNDCTL_DSP_GETTRIGGER:
+ val = 0;
+ if (file->f_mode & FMODE_READ && s->ctrl & CTRL_ADC_EN)
+ val |= PCM_ENABLE_INPUT;
+ if (file->f_mode & FMODE_WRITE && s->ctrl & CTRL_DAC2_EN)
+ val |= PCM_ENABLE_OUTPUT;
+ return put_user(val, p);
+
+ case SNDCTL_DSP_SETTRIGGER:
+ if (get_user(val, p))
+ return -EFAULT;
+ if (file->f_mode & FMODE_READ) {
+ if (val & PCM_ENABLE_INPUT) {
+ if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
+ return ret;
+ s->dma_adc.enabled = 1;
+ start_adc(s);
+ } else {
+ s->dma_adc.enabled = 0;
+ stop_adc(s);
+ }
+ }
+ if (file->f_mode & FMODE_WRITE) {
+ if (val & PCM_ENABLE_OUTPUT) {
+ if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
+ return ret;
+ s->dma_dac2.enabled = 1;
+ start_dac2(s);
+ } else {
+ s->dma_dac2.enabled = 0;
+ stop_dac2(s);
+ }
+ }
+ return 0;
+
+ case SNDCTL_DSP_GETOSPACE:
+ if (!(file->f_mode & FMODE_WRITE))
+ return -EINVAL;
+ if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0)
+ return val;
+ spin_lock_irqsave(&s->lock, flags);
+ es1370_update_ptr(s);
+ abinfo.fragsize = s->dma_dac2.fragsize;
+ count = s->dma_dac2.count;
+ if (count < 0)
+ count = 0;
+ abinfo.bytes = s->dma_dac2.dmasize - count;
+ abinfo.fragstotal = s->dma_dac2.numfrag;
+ abinfo.fragments = abinfo.bytes >> s->dma_dac2.fragshift;
+ spin_unlock_irqrestore(&s->lock, flags);
+ return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
+
+ case SNDCTL_DSP_GETISPACE:
+ if (!(file->f_mode & FMODE_READ))
+ return -EINVAL;
+ if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s)) != 0)
+ return val;
+ spin_lock_irqsave(&s->lock, flags);
+ es1370_update_ptr(s);
+ abinfo.fragsize = s->dma_adc.fragsize;
+ count = s->dma_adc.count;
+ if (count < 0)
+ count = 0;
+ abinfo.bytes = count;
+ abinfo.fragstotal = s->dma_adc.numfrag;
+ abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
+ spin_unlock_irqrestore(&s->lock, flags);
+ return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
+
+ case SNDCTL_DSP_NONBLOCK:
+ file->f_flags |= O_NONBLOCK;
+ return 0;
+
+ case SNDCTL_DSP_GETODELAY:
+ if (!(file->f_mode & FMODE_WRITE))
+ return -EINVAL;
+ if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0)
+ return val;
+ spin_lock_irqsave(&s->lock, flags);
+ es1370_update_ptr(s);
+ count = s->dma_dac2.count;
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (count < 0)
+ count = 0;
+ return put_user(count, p);
+
+ case SNDCTL_DSP_GETIPTR:
+ if (!(file->f_mode & FMODE_READ))
+ return -EINVAL;
+ if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s)) != 0)
+ return val;
+ spin_lock_irqsave(&s->lock, flags);
+ es1370_update_ptr(s);
+ cinfo.bytes = s->dma_adc.total_bytes;
+ count = s->dma_adc.count;
+ if (count < 0)
+ count = 0;
+ cinfo.blocks = count >> s->dma_adc.fragshift;
+ cinfo.ptr = s->dma_adc.hwptr;
+ if (s->dma_adc.mapped)
+ s->dma_adc.count &= s->dma_adc.fragsize-1;
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
+ return -EFAULT;
+ return 0;
+
+ case SNDCTL_DSP_GETOPTR:
+ if (!(file->f_mode & FMODE_WRITE))
+ return -EINVAL;
+ if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0)
+ return val;
+ spin_lock_irqsave(&s->lock, flags);
+ es1370_update_ptr(s);
+ cinfo.bytes = s->dma_dac2.total_bytes;
+ count = s->dma_dac2.count;
+ if (count < 0)
+ count = 0;
+ cinfo.blocks = count >> s->dma_dac2.fragshift;
+ cinfo.ptr = s->dma_dac2.hwptr;
+ if (s->dma_dac2.mapped)
+ s->dma_dac2.count &= s->dma_dac2.fragsize-1;
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
+ return -EFAULT;
+ return 0;
+
+ case SNDCTL_DSP_GETBLKSIZE:
+ if (file->f_mode & FMODE_WRITE) {
+ if ((val = prog_dmabuf_dac2(s)))
+ return val;
+ return put_user(s->dma_dac2.fragsize, p);
+ }
+ if ((val = prog_dmabuf_adc(s)))
+ return val;
+ return put_user(s->dma_adc.fragsize, p);
+
+ case SNDCTL_DSP_SETFRAGMENT:
+ if (get_user(val, p))
+ return -EFAULT;
+ if (file->f_mode & FMODE_READ) {
+ s->dma_adc.ossfragshift = val & 0xffff;
+ s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
+ if (s->dma_adc.ossfragshift < 4)
+ s->dma_adc.ossfragshift = 4;
+ if (s->dma_adc.ossfragshift > 15)
+ s->dma_adc.ossfragshift = 15;
+ if (s->dma_adc.ossmaxfrags < 4)
+ s->dma_adc.ossmaxfrags = 4;
+ }
+ if (file->f_mode & FMODE_WRITE) {
+ s->dma_dac2.ossfragshift = val & 0xffff;
+ s->dma_dac2.ossmaxfrags = (val >> 16) & 0xffff;
+ if (s->dma_dac2.ossfragshift < 4)
+ s->dma_dac2.ossfragshift = 4;
+ if (s->dma_dac2.ossfragshift > 15)
+ s->dma_dac2.ossfragshift = 15;
+ if (s->dma_dac2.ossmaxfrags < 4)
+ s->dma_dac2.ossmaxfrags = 4;
+ }
+ return 0;
+
+ case SNDCTL_DSP_SUBDIVIDE:
+ if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
+ (file->f_mode & FMODE_WRITE && s->dma_dac2.subdivision))
+ return -EINVAL;
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val != 1 && val != 2 && val != 4)
+ return -EINVAL;
+ if (file->f_mode & FMODE_READ)
+ s->dma_adc.subdivision = val;
+ if (file->f_mode & FMODE_WRITE)
+ s->dma_dac2.subdivision = val;
+ return 0;
+
+ case SOUND_PCM_READ_RATE:
+ return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), p);
+
+ case SOUND_PCM_READ_CHANNELS:
+ return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ?
+ 2 : 1, p);
+
+ case SOUND_PCM_READ_BITS:
+ return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
+ 16 : 8, p);
+
+ case SOUND_PCM_WRITE_FILTER:
+ case SNDCTL_DSP_SETSYNCRO:
+ case SOUND_PCM_READ_FILTER:
+ return -EINVAL;
+
+ }
+ return mixer_ioctl(s, cmd, arg);
+}
+
+static int es1370_open(struct inode *inode, struct file *file)
+{
+ unsigned int minor = iminor(inode);
+ DECLARE_WAITQUEUE(wait, current);
+ unsigned long flags;
+ struct list_head *list;
+ struct es1370_state *s;
+
+ for (list = devs.next; ; list = list->next) {
+ if (list == &devs)
+ return -ENODEV;
+ s = list_entry(list, struct es1370_state, devs);
+ if (!((s->dev_audio ^ minor) & ~0xf))
+ break;
+ }
+ VALIDATE_STATE(s);
+ file->private_data = s;
+ /* wait for device to become free */
+ down(&s->open_sem);
+ while (s->open_mode & file->f_mode) {
+ if (file->f_flags & O_NONBLOCK) {
+ up(&s->open_sem);
+ return -EBUSY;
+ }
+ add_wait_queue(&s->open_wait, &wait);
+ __set_current_state(TASK_INTERRUPTIBLE);
+ up(&s->open_sem);
+ schedule();
+ remove_wait_queue(&s->open_wait, &wait);
+ set_current_state(TASK_RUNNING);
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+ down(&s->open_sem);
+ }
+ spin_lock_irqsave(&s->lock, flags);
+ if (!(s->open_mode & (FMODE_READ|FMODE_WRITE)))
+ s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV);
+ if (file->f_mode & FMODE_READ) {
+ s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
+ s->dma_adc.enabled = 1;
+ s->sctrl &= ~SCTRL_R1FMT;
+ if ((minor & 0xf) == SND_DEV_DSP16)
+ s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_R1FMT;
+ else
+ s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_R1FMT;
+ }
+ if (file->f_mode & FMODE_WRITE) {
+ s->dma_dac2.ossfragshift = s->dma_dac2.ossmaxfrags = s->dma_dac2.subdivision = 0;
+ s->dma_dac2.enabled = 1;
+ s->sctrl &= ~SCTRL_P2FMT;
+ if ((minor & 0xf) == SND_DEV_DSP16)
+ s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P2FMT;
+ else
+ s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P2FMT;
+ }
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+ s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
+ up(&s->open_sem);
+ init_MUTEX(&s->sem);
+ return nonseekable_open(inode, file);
+}
+
+static int es1370_release(struct inode *inode, struct file *file)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+
+ VALIDATE_STATE(s);
+ lock_kernel();
+ if (file->f_mode & FMODE_WRITE)
+ drain_dac2(s, file->f_flags & O_NONBLOCK);
+ down(&s->open_sem);
+ if (file->f_mode & FMODE_WRITE) {
+ stop_dac2(s);
+ synchronize_irq(s->irq);
+ dealloc_dmabuf(s, &s->dma_dac2);
+ }
+ if (file->f_mode & FMODE_READ) {
+ stop_adc(s);
+ dealloc_dmabuf(s, &s->dma_adc);
+ }
+ s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
+ wake_up(&s->open_wait);
+ up(&s->open_sem);
+ unlock_kernel();
+ return 0;
+}
+
+static /*const*/ struct file_operations es1370_audio_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .read = es1370_read,
+ .write = es1370_write,
+ .poll = es1370_poll,
+ .ioctl = es1370_ioctl,
+ .mmap = es1370_mmap,
+ .open = es1370_open,
+ .release = es1370_release,
+};
+
+/* --------------------------------------------------------------------- */
+
+static ssize_t es1370_write_dac(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+ DECLARE_WAITQUEUE(wait, current);
+ ssize_t ret = 0;
+ unsigned long flags;
+ unsigned swptr;
+ int cnt;
+
+ VALIDATE_STATE(s);
+ if (s->dma_dac1.mapped)
+ return -ENXIO;
+ if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
+ return ret;
+ if (!access_ok(VERIFY_READ, buffer, count))
+ return -EFAULT;
+ add_wait_queue(&s->dma_dac1.wait, &wait);
+ while (count > 0) {
+ spin_lock_irqsave(&s->lock, flags);
+ if (s->dma_dac1.count < 0) {
+ s->dma_dac1.count = 0;
+ s->dma_dac1.swptr = s->dma_dac1.hwptr;
+ }
+ swptr = s->dma_dac1.swptr;
+ cnt = s->dma_dac1.dmasize-swptr;
+ if (s->dma_dac1.count + cnt > s->dma_dac1.dmasize)
+ cnt = s->dma_dac1.dmasize - s->dma_dac1.count;
+ if (cnt <= 0)
+ __set_current_state(TASK_INTERRUPTIBLE);
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (cnt > count)
+ cnt = count;
+ if (cnt <= 0) {
+ if (s->dma_dac1.enabled)
+ start_dac1(s);
+ if (file->f_flags & O_NONBLOCK) {
+ if (!ret)
+ ret = -EAGAIN;
+ break;
+ }
+ schedule();
+ if (signal_pending(current)) {
+ if (!ret)
+ ret = -ERESTARTSYS;
+ break;
+ }
+ continue;
+ }
+ if (copy_from_user(s->dma_dac1.rawbuf + swptr, buffer, cnt)) {
+ if (!ret)
+ ret = -EFAULT;
+ break;
+ }
+ swptr = (swptr + cnt) % s->dma_dac1.dmasize;
+ spin_lock_irqsave(&s->lock, flags);
+ s->dma_dac1.swptr = swptr;
+ s->dma_dac1.count += cnt;
+ s->dma_dac1.endcleared = 0;
+ spin_unlock_irqrestore(&s->lock, flags);
+ count -= cnt;
+ buffer += cnt;
+ ret += cnt;
+ if (s->dma_dac1.enabled)
+ start_dac1(s);
+ }
+ remove_wait_queue(&s->dma_dac1.wait, &wait);
+ set_current_state(TASK_RUNNING);
+ return ret;
+}
+
+/* No kernel lock - we have our own spinlock */
+static unsigned int es1370_poll_dac(struct file *file, struct poll_table_struct *wait)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+ unsigned long flags;
+ unsigned int mask = 0;
+
+ VALIDATE_STATE(s);
+ if (!s->dma_dac1.ready && prog_dmabuf_dac1(s))
+ return 0;
+ poll_wait(file, &s->dma_dac1.wait, wait);
+ spin_lock_irqsave(&s->lock, flags);
+ es1370_update_ptr(s);
+ if (s->dma_dac1.mapped) {
+ if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
+ mask |= POLLOUT | POLLWRNORM;
+ } else {
+ if ((signed)s->dma_dac1.dmasize >= s->dma_dac1.count + (signed)s->dma_dac1.fragsize)
+ mask |= POLLOUT | POLLWRNORM;
+ }
+ spin_unlock_irqrestore(&s->lock, flags);
+ return mask;
+}
+
+static int es1370_mmap_dac(struct file *file, struct vm_area_struct *vma)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+ int ret;
+ unsigned long size;
+
+ VALIDATE_STATE(s);
+ if (!(vma->vm_flags & VM_WRITE))
+ return -EINVAL;
+ lock_kernel();
+ if ((ret = prog_dmabuf_dac1(s)) != 0)
+ goto out;
+ ret = -EINVAL;
+ if (vma->vm_pgoff != 0)
+ goto out;
+ size = vma->vm_end - vma->vm_start;
+ if (size > (PAGE_SIZE << s->dma_dac1.buforder))
+ goto out;
+ ret = -EAGAIN;
+ if (remap_pfn_range(vma, vma->vm_start,
+ virt_to_phys(s->dma_dac1.rawbuf) >> PAGE_SHIFT,
+ size, vma->vm_page_prot))
+ goto out;
+ s->dma_dac1.mapped = 1;
+ ret = 0;
+out:
+ unlock_kernel();
+ return ret;
+}
+
+static int es1370_ioctl_dac(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+ unsigned long flags;
+ audio_buf_info abinfo;
+ count_info cinfo;
+ int count;
+ unsigned ctrl;
+ int val, ret;
+ int __user *p = (int __user *)arg;
+
+ VALIDATE_STATE(s);
+ switch (cmd) {
+ case OSS_GETVERSION:
+ return put_user(SOUND_VERSION, p);
+
+ case SNDCTL_DSP_SYNC:
+ return drain_dac1(s, 0/*file->f_flags & O_NONBLOCK*/);
+
+ case SNDCTL_DSP_SETDUPLEX:
+ return -EINVAL;
+
+ case SNDCTL_DSP_GETCAPS:
+ return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p);
+
+ case SNDCTL_DSP_RESET:
+ stop_dac1(s);
+ synchronize_irq(s->irq);
+ s->dma_dac1.swptr = s->dma_dac1.hwptr = s->dma_dac1.count = s->dma_dac1.total_bytes = 0;
+ return 0;
+
+ case SNDCTL_DSP_SPEED:
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val >= 0) {
+ stop_dac1(s);
+ s->dma_dac1.ready = 0;
+ for (ctrl = 0; ctrl <= 2; ctrl++)
+ if (val < (dac1_samplerate[ctrl] + dac1_samplerate[ctrl+1]) / 2)
+ break;
+ spin_lock_irqsave(&s->lock, flags);
+ s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (ctrl << CTRL_SH_WTSRSEL);
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+ }
+ return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], p);
+
+ case SNDCTL_DSP_STEREO:
+ if (get_user(val, p))
+ return -EFAULT;
+ stop_dac1(s);
+ s->dma_dac1.ready = 0;
+ spin_lock_irqsave(&s->lock, flags);
+ if (val)
+ s->sctrl |= SCTRL_P1SMB;
+ else
+ s->sctrl &= ~SCTRL_P1SMB;
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+ return 0;
+
+ case SNDCTL_DSP_CHANNELS:
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val != 0) {
+ if (s->dma_dac1.mapped)
+ return -EINVAL;
+ stop_dac1(s);
+ s->dma_dac1.ready = 0;
+ spin_lock_irqsave(&s->lock, flags);
+ if (val >= 2)
+ s->sctrl |= SCTRL_P1SMB;
+ else
+ s->sctrl &= ~SCTRL_P1SMB;
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+ }
+ return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, p);
+
+ case SNDCTL_DSP_GETFMTS: /* Returns a mask */
+ return put_user(AFMT_S16_LE|AFMT_U8, p);
+
+ case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val != AFMT_QUERY) {
+ stop_dac1(s);
+ s->dma_dac1.ready = 0;
+ spin_lock_irqsave(&s->lock, flags);
+ if (val == AFMT_S16_LE)
+ s->sctrl |= SCTRL_P1SEB;
+ else
+ s->sctrl &= ~SCTRL_P1SEB;
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+ }
+ return put_user((s->sctrl & SCTRL_P1SEB) ? AFMT_S16_LE : AFMT_U8, p);
+
+ case SNDCTL_DSP_POST:
+ return 0;
+
+ case SNDCTL_DSP_GETTRIGGER:
+ return put_user((s->ctrl & CTRL_DAC1_EN) ? PCM_ENABLE_OUTPUT : 0, p);
+
+ case SNDCTL_DSP_SETTRIGGER:
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val & PCM_ENABLE_OUTPUT) {
+ if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
+ return ret;
+ s->dma_dac1.enabled = 1;
+ start_dac1(s);
+ } else {
+ s->dma_dac1.enabled = 0;
+ stop_dac1(s);
+ }
+ return 0;
+
+ case SNDCTL_DSP_GETOSPACE:
+ if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0)
+ return val;
+ spin_lock_irqsave(&s->lock, flags);
+ es1370_update_ptr(s);
+ abinfo.fragsize = s->dma_dac1.fragsize;
+ count = s->dma_dac1.count;
+ if (count < 0)
+ count = 0;
+ abinfo.bytes = s->dma_dac1.dmasize - count;
+ abinfo.fragstotal = s->dma_dac1.numfrag;
+ abinfo.fragments = abinfo.bytes >> s->dma_dac1.fragshift;
+ spin_unlock_irqrestore(&s->lock, flags);
+ return copy_to_user((void __user *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
+
+ case SNDCTL_DSP_NONBLOCK:
+ file->f_flags |= O_NONBLOCK;
+ return 0;
+
+ case SNDCTL_DSP_GETODELAY:
+ if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0)
+ return val;
+ spin_lock_irqsave(&s->lock, flags);
+ es1370_update_ptr(s);
+ count = s->dma_dac1.count;
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (count < 0)
+ count = 0;
+ return put_user(count, p);
+
+ case SNDCTL_DSP_GETOPTR:
+ if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0)
+ return val;
+ spin_lock_irqsave(&s->lock, flags);
+ es1370_update_ptr(s);
+ cinfo.bytes = s->dma_dac1.total_bytes;
+ count = s->dma_dac1.count;
+ if (count < 0)
+ count = 0;
+ cinfo.blocks = count >> s->dma_dac1.fragshift;
+ cinfo.ptr = s->dma_dac1.hwptr;
+ if (s->dma_dac1.mapped)
+ s->dma_dac1.count &= s->dma_dac1.fragsize-1;
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (copy_to_user((void __user *)arg, &cinfo, sizeof(cinfo)))
+ return -EFAULT;
+ return 0;
+
+ case SNDCTL_DSP_GETBLKSIZE:
+ if ((val = prog_dmabuf_dac1(s)))
+ return val;
+ return put_user(s->dma_dac1.fragsize, p);
+
+ case SNDCTL_DSP_SETFRAGMENT:
+ if (get_user(val, p))
+ return -EFAULT;
+ s->dma_dac1.ossfragshift = val & 0xffff;
+ s->dma_dac1.ossmaxfrags = (val >> 16) & 0xffff;
+ if (s->dma_dac1.ossfragshift < 4)
+ s->dma_dac1.ossfragshift = 4;
+ if (s->dma_dac1.ossfragshift > 15)
+ s->dma_dac1.ossfragshift = 15;
+ if (s->dma_dac1.ossmaxfrags < 4)
+ s->dma_dac1.ossmaxfrags = 4;
+ return 0;
+
+ case SNDCTL_DSP_SUBDIVIDE:
+ if (s->dma_dac1.subdivision)
+ return -EINVAL;
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val != 1 && val != 2 && val != 4)
+ return -EINVAL;
+ s->dma_dac1.subdivision = val;
+ return 0;
+
+ case SOUND_PCM_READ_RATE:
+ return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], p);
+
+ case SOUND_PCM_READ_CHANNELS:
+ return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, p);
+
+ case SOUND_PCM_READ_BITS:
+ return put_user((s->sctrl & SCTRL_P1SEB) ? 16 : 8, p);
+
+ case SOUND_PCM_WRITE_FILTER:
+ case SNDCTL_DSP_SETSYNCRO:
+ case SOUND_PCM_READ_FILTER:
+ return -EINVAL;
+
+ }
+ return mixer_ioctl(s, cmd, arg);
+}
+
+static int es1370_open_dac(struct inode *inode, struct file *file)
+{
+ unsigned int minor = iminor(inode);
+ DECLARE_WAITQUEUE(wait, current);
+ unsigned long flags;
+ struct list_head *list;
+ struct es1370_state *s;
+
+ for (list = devs.next; ; list = list->next) {
+ if (list == &devs)
+ return -ENODEV;
+ s = list_entry(list, struct es1370_state, devs);
+ if (!((s->dev_dac ^ minor) & ~0xf))
+ break;
+ }
+ VALIDATE_STATE(s);
+ /* we allow opening with O_RDWR, most programs do it although they will only write */
+#if 0
+ if (file->f_mode & FMODE_READ)
+ return -EPERM;
+#endif
+ if (!(file->f_mode & FMODE_WRITE))
+ return -EINVAL;
+ file->private_data = s;
+ /* wait for device to become free */
+ down(&s->open_sem);
+ while (s->open_mode & FMODE_DAC) {
+ if (file->f_flags & O_NONBLOCK) {
+ up(&s->open_sem);
+ return -EBUSY;
+ }
+ add_wait_queue(&s->open_wait, &wait);
+ __set_current_state(TASK_INTERRUPTIBLE);
+ up(&s->open_sem);
+ schedule();
+ remove_wait_queue(&s->open_wait, &wait);
+ set_current_state(TASK_RUNNING);
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+ down(&s->open_sem);
+ }
+ s->dma_dac1.ossfragshift = s->dma_dac1.ossmaxfrags = s->dma_dac1.subdivision = 0;
+ s->dma_dac1.enabled = 1;
+ spin_lock_irqsave(&s->lock, flags);
+ s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (1 << CTRL_SH_WTSRSEL);
+ s->sctrl &= ~SCTRL_P1FMT;
+ if ((minor & 0xf) == SND_DEV_DSP16)
+ s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P1FMT;
+ else
+ s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P1FMT;
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ spin_unlock_irqrestore(&s->lock, flags);
+ s->open_mode |= FMODE_DAC;
+ up(&s->open_sem);
+ return nonseekable_open(inode, file);
+}
+
+static int es1370_release_dac(struct inode *inode, struct file *file)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+
+ VALIDATE_STATE(s);
+ lock_kernel();
+ drain_dac1(s, file->f_flags & O_NONBLOCK);
+ down(&s->open_sem);
+ stop_dac1(s);
+ dealloc_dmabuf(s, &s->dma_dac1);
+ s->open_mode &= ~FMODE_DAC;
+ wake_up(&s->open_wait);
+ up(&s->open_sem);
+ unlock_kernel();
+ return 0;
+}
+
+static /*const*/ struct file_operations es1370_dac_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .write = es1370_write_dac,
+ .poll = es1370_poll_dac,
+ .ioctl = es1370_ioctl_dac,
+ .mmap = es1370_mmap_dac,
+ .open = es1370_open_dac,
+ .release = es1370_release_dac,
+};
+
+/* --------------------------------------------------------------------- */
+
+static ssize_t es1370_midi_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+ DECLARE_WAITQUEUE(wait, current);
+ ssize_t ret;
+ unsigned long flags;
+ unsigned ptr;
+ int cnt;
+
+ VALIDATE_STATE(s);
+ if (!access_ok(VERIFY_WRITE, buffer, count))
+ return -EFAULT;
+ if (count == 0)
+ return 0;
+ ret = 0;
+ add_wait_queue(&s->midi.iwait, &wait);
+ while (count > 0) {
+ spin_lock_irqsave(&s->lock, flags);
+ ptr = s->midi.ird;
+ cnt = MIDIINBUF - ptr;
+ if (s->midi.icnt < cnt)
+ cnt = s->midi.icnt;
+ if (cnt <= 0)
+ __set_current_state(TASK_INTERRUPTIBLE);
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (cnt > count)
+ cnt = count;
+ if (cnt <= 0) {
+ if (file->f_flags & O_NONBLOCK) {
+ if (!ret)
+ ret = -EAGAIN;
+ break;
+ }
+ schedule();
+ if (signal_pending(current)) {
+ if (!ret)
+ ret = -ERESTARTSYS;
+ break;
+ }
+ continue;
+ }
+ if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt)) {
+ if (!ret)
+ ret = -EFAULT;
+ break;
+ }
+ ptr = (ptr + cnt) % MIDIINBUF;
+ spin_lock_irqsave(&s->lock, flags);
+ s->midi.ird = ptr;
+ s->midi.icnt -= cnt;
+ spin_unlock_irqrestore(&s->lock, flags);
+ count -= cnt;
+ buffer += cnt;
+ ret += cnt;
+ break;
+ }
+ __set_current_state(TASK_RUNNING);
+ remove_wait_queue(&s->midi.iwait, &wait);
+ return ret;
+}
+
+static ssize_t es1370_midi_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+ DECLARE_WAITQUEUE(wait, current);
+ ssize_t ret;
+ unsigned long flags;
+ unsigned ptr;
+ int cnt;
+
+ VALIDATE_STATE(s);
+ if (!access_ok(VERIFY_READ, buffer, count))
+ return -EFAULT;
+ if (count == 0)
+ return 0;
+ ret = 0;
+ add_wait_queue(&s->midi.owait, &wait);
+ while (count > 0) {
+ spin_lock_irqsave(&s->lock, flags);
+ ptr = s->midi.owr;
+ cnt = MIDIOUTBUF - ptr;
+ if (s->midi.ocnt + cnt > MIDIOUTBUF)
+ cnt = MIDIOUTBUF - s->midi.ocnt;
+ if (cnt <= 0) {
+ __set_current_state(TASK_INTERRUPTIBLE);
+ es1370_handle_midi(s);
+ }
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (cnt > count)
+ cnt = count;
+ if (cnt <= 0) {
+ if (file->f_flags & O_NONBLOCK) {
+ if (!ret)
+ ret = -EAGAIN;
+ break;
+ }
+ schedule();
+ if (signal_pending(current)) {
+ if (!ret)
+ ret = -ERESTARTSYS;
+ break;
+ }
+ continue;
+ }
+ if (copy_from_user(s->midi.obuf + ptr, buffer, cnt)) {
+ if (!ret)
+ ret = -EFAULT;
+ break;
+ }
+ ptr = (ptr + cnt) % MIDIOUTBUF;
+ spin_lock_irqsave(&s->lock, flags);
+ s->midi.owr = ptr;
+ s->midi.ocnt += cnt;
+ spin_unlock_irqrestore(&s->lock, flags);
+ count -= cnt;
+ buffer += cnt;
+ ret += cnt;
+ spin_lock_irqsave(&s->lock, flags);
+ es1370_handle_midi(s);
+ spin_unlock_irqrestore(&s->lock, flags);
+ }
+ __set_current_state(TASK_RUNNING);
+ remove_wait_queue(&s->midi.owait, &wait);
+ return ret;
+}
+
+/* No kernel lock - we have our own spinlock */
+static unsigned int es1370_midi_poll(struct file *file, struct poll_table_struct *wait)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+ unsigned long flags;
+ unsigned int mask = 0;
+
+ VALIDATE_STATE(s);
+ if (file->f_mode & FMODE_WRITE)
+ poll_wait(file, &s->midi.owait, wait);
+ if (file->f_mode & FMODE_READ)
+ poll_wait(file, &s->midi.iwait, wait);
+ spin_lock_irqsave(&s->lock, flags);
+ if (file->f_mode & FMODE_READ) {
+ if (s->midi.icnt > 0)
+ mask |= POLLIN | POLLRDNORM;
+ }
+ if (file->f_mode & FMODE_WRITE) {
+ if (s->midi.ocnt < MIDIOUTBUF)
+ mask |= POLLOUT | POLLWRNORM;
+ }
+ spin_unlock_irqrestore(&s->lock, flags);
+ return mask;
+}
+
+static int es1370_midi_open(struct inode *inode, struct file *file)
+{
+ unsigned int minor = iminor(inode);
+ DECLARE_WAITQUEUE(wait, current);
+ unsigned long flags;
+ struct list_head *list;
+ struct es1370_state *s;
+
+ for (list = devs.next; ; list = list->next) {
+ if (list == &devs)
+ return -ENODEV;
+ s = list_entry(list, struct es1370_state, devs);
+ if (s->dev_midi == minor)
+ break;
+ }
+ VALIDATE_STATE(s);
+ file->private_data = s;
+ /* wait for device to become free */
+ down(&s->open_sem);
+ while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
+ if (file->f_flags & O_NONBLOCK) {
+ up(&s->open_sem);
+ return -EBUSY;
+ }
+ add_wait_queue(&s->open_wait, &wait);
+ __set_current_state(TASK_INTERRUPTIBLE);
+ up(&s->open_sem);
+ schedule();
+ remove_wait_queue(&s->open_wait, &wait);
+ set_current_state(TASK_RUNNING);
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+ down(&s->open_sem);
+ }
+ spin_lock_irqsave(&s->lock, flags);
+ if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
+ s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
+ s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
+ outb(UCTRL_CNTRL_SWR, s->io+ES1370_REG_UART_CONTROL);
+ outb(0, s->io+ES1370_REG_UART_CONTROL);
+ outb(0, s->io+ES1370_REG_UART_TEST);
+ }
+ if (file->f_mode & FMODE_READ) {
+ s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
+ }
+ if (file->f_mode & FMODE_WRITE) {
+ s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
+ }
+ s->ctrl |= CTRL_UART_EN;
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ es1370_handle_midi(s);
+ spin_unlock_irqrestore(&s->lock, flags);
+ s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
+ up(&s->open_sem);
+ return nonseekable_open(inode, file);
+}
+
+static int es1370_midi_release(struct inode *inode, struct file *file)
+{
+ struct es1370_state *s = (struct es1370_state *)file->private_data;
+ DECLARE_WAITQUEUE(wait, current);
+ unsigned long flags;
+ unsigned count, tmo;
+
+ VALIDATE_STATE(s);
+
+ lock_kernel();
+ if (file->f_mode & FMODE_WRITE) {
+ add_wait_queue(&s->midi.owait, &wait);
+ for (;;) {
+ __set_current_state(TASK_INTERRUPTIBLE);
+ spin_lock_irqsave(&s->lock, flags);
+ count = s->midi.ocnt;
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (count <= 0)
+ break;
+ if (signal_pending(current))
+ break;
+ if (file->f_flags & O_NONBLOCK)
+ break;
+ tmo = (count * HZ) / 3100;
+ if (!schedule_timeout(tmo ? : 1) && tmo)
+ DBG(printk(KERN_DEBUG "es1370: midi timed out??\n");)
+ }
+ remove_wait_queue(&s->midi.owait, &wait);
+ set_current_state(TASK_RUNNING);
+ }
+ down(&s->open_sem);
+ s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
+ spin_lock_irqsave(&s->lock, flags);
+ if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
+ s->ctrl &= ~CTRL_UART_EN;
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ }
+ spin_unlock_irqrestore(&s->lock, flags);
+ wake_up(&s->open_wait);
+ up(&s->open_sem);
+ unlock_kernel();
+ return 0;
+}
+
+static /*const*/ struct file_operations es1370_midi_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .read = es1370_midi_read,
+ .write = es1370_midi_write,
+ .poll = es1370_midi_poll,
+ .open = es1370_midi_open,
+ .release = es1370_midi_release,
+};
+
+/* --------------------------------------------------------------------- */
+
+/* maximum number of devices; only used for command line params */
+#define NR_DEVICE 5
+
+static int lineout[NR_DEVICE];
+static int micbias[NR_DEVICE];
+
+static unsigned int devindex;
+
+module_param_array(lineout, bool, NULL, 0);
+MODULE_PARM_DESC(lineout, "if 1 the LINE input is converted to LINE out");
+module_param_array(micbias, bool, NULL, 0);
+MODULE_PARM_DESC(micbias, "sets the +5V bias for an electret microphone");
+
+MODULE_AUTHOR("Thomas M. Sailer, sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu");
+MODULE_DESCRIPTION("ES1370 AudioPCI Driver");
+MODULE_LICENSE("GPL");
+
+
+/* --------------------------------------------------------------------- */
+
+static struct initvol {
+ int mixch;
+ int vol;
+} initvol[] __devinitdata = {
+ { SOUND_MIXER_WRITE_VOLUME, 0x4040 },
+ { SOUND_MIXER_WRITE_PCM, 0x4040 },
+ { SOUND_MIXER_WRITE_SYNTH, 0x4040 },
+ { SOUND_MIXER_WRITE_CD, 0x4040 },
+ { SOUND_MIXER_WRITE_LINE, 0x4040 },
+ { SOUND_MIXER_WRITE_LINE1, 0x4040 },
+ { SOUND_MIXER_WRITE_LINE2, 0x4040 },
+ { SOUND_MIXER_WRITE_LINE3, 0x4040 },
+ { SOUND_MIXER_WRITE_MIC, 0x4040 },
+ { SOUND_MIXER_WRITE_OGAIN, 0x4040 }
+};
+
+static int __devinit es1370_probe(struct pci_dev *pcidev, const struct pci_device_id *pciid)
+{
+ struct es1370_state *s;
+ struct gameport *gp = NULL;
+ mm_segment_t fs;
+ int i, val, ret;
+
+ if ((ret=pci_enable_device(pcidev)))
+ return ret;
+
+ if ( !(pci_resource_flags(pcidev, 0) & IORESOURCE_IO) ||
+ !pci_resource_start(pcidev, 0)
+ )
+ return -ENODEV;
+ if (pcidev->irq == 0)
+ return -ENODEV;
+ i = pci_set_dma_mask(pcidev, 0xffffffff);
+ if (i) {
+ printk(KERN_WARNING "es1370: architecture does not support 32bit PCI busmaster DMA\n");
+ return i;
+ }
+ if (!(s = kmalloc(sizeof(struct es1370_state), GFP_KERNEL))) {
+ printk(KERN_WARNING "es1370: out of memory\n");
+ return -ENOMEM;
+ }
+ memset(s, 0, sizeof(struct es1370_state));
+ init_waitqueue_head(&s->dma_adc.wait);
+ init_waitqueue_head(&s->dma_dac1.wait);
+ init_waitqueue_head(&s->dma_dac2.wait);
+ init_waitqueue_head(&s->open_wait);
+ init_waitqueue_head(&s->midi.iwait);
+ init_waitqueue_head(&s->midi.owait);
+ init_MUTEX(&s->open_sem);
+ spin_lock_init(&s->lock);
+ s->magic = ES1370_MAGIC;
+ s->dev = pcidev;
+ s->io = pci_resource_start(pcidev, 0);
+ s->irq = pcidev->irq;
+ if (!request_region(s->io, ES1370_EXTENT, "es1370")) {
+ printk(KERN_ERR "es1370: io ports %#lx-%#lx in use\n", s->io, s->io+ES1370_EXTENT-1);
+ ret = -EBUSY;
+ goto err_region;
+ }
+ if ((ret=request_irq(s->irq, es1370_interrupt, SA_SHIRQ, "es1370",s))) {
+ printk(KERN_ERR "es1370: irq %u in use\n", s->irq);
+ goto err_irq;
+ }
+
+ /* initialize codec registers */
+ /* note: setting CTRL_SERR_DIS is reported to break
+ * mic bias setting (by Kim.Berts@fisub.mail.abb.com) */
+ s->ctrl = CTRL_CDC_EN | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV) | (1 << CTRL_SH_WTSRSEL);
+ if (!request_region(0x200, JOY_EXTENT, "es1370")) {
+ printk(KERN_ERR "es1370: joystick io port 0x200 in use\n");
+ } else if (!(s->gameport = gp = gameport_allocate_port())) {
+ printk(KERN_ERR "es1370: can not allocate memory for gameport\n");
+ release_region(0x200, JOY_EXTENT);
+ } else {
+ gameport_set_name(gp, "ESS1370");
+ gameport_set_phys(gp, "pci%s/gameport0", pci_name(s->dev));
+ gp->dev.parent = &s->dev->dev;
+ gp->io = 0x200;
+ s->ctrl |= CTRL_JYSTK_EN;
+ }
+ if (lineout[devindex])
+ s->ctrl |= CTRL_XCTL0;
+ if (micbias[devindex])
+ s->ctrl |= CTRL_XCTL1;
+ s->sctrl = 0;
+ printk(KERN_INFO "es1370: found adapter at io %#lx irq %u\n"
+ KERN_INFO "es1370: features: joystick %s, line %s, mic impedance %s\n",
+ s->io, s->irq, (s->ctrl & CTRL_JYSTK_EN) ? "on" : "off",
+ (s->ctrl & CTRL_XCTL0) ? "out" : "in",
+ (s->ctrl & CTRL_XCTL1) ? "1" : "0");
+ /* register devices */
+ if ((s->dev_audio = register_sound_dsp(&es1370_audio_fops, -1)) < 0) {
+ ret = s->dev_audio;
+ goto err_dev1;
+ }
+ if ((s->dev_mixer = register_sound_mixer(&es1370_mixer_fops, -1)) < 0) {
+ ret = s->dev_mixer;
+ goto err_dev2;
+ }
+ if ((s->dev_dac = register_sound_dsp(&es1370_dac_fops, -1)) < 0) {
+ ret = s->dev_dac;
+ goto err_dev3;
+ }
+ if ((s->dev_midi = register_sound_midi(&es1370_midi_fops, -1)) < 0) {
+ ret = s->dev_midi;
+ goto err_dev4;
+ }
+ /* initialize the chips */
+ outl(s->ctrl, s->io+ES1370_REG_CONTROL);
+ outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
+ /* point phantom write channel to "bugbuf" */
+ s->bugbuf_cpu = pci_alloc_consistent(pcidev,16,&s->bugbuf_dma);
+ if (!s->bugbuf_cpu) {
+ ret = -ENOMEM;
+ goto err_dev5;
+ }
+ outl((ES1370_REG_PHANTOM_FRAMEADR >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
+ outl(s->bugbuf_dma, s->io+(ES1370_REG_PHANTOM_FRAMEADR & 0xff));
+ outl(0, s->io+(ES1370_REG_PHANTOM_FRAMECNT & 0xff));
+ pci_set_master(pcidev); /* enable bus mastering */
+ wrcodec(s, 0x16, 3); /* no RST, PD */
+ wrcodec(s, 0x17, 0); /* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off the LRCLK2 PLL; program DAC_SYNC=0!! */
+ wrcodec(s, 0x18, 0); /* recording source is mixer */
+ wrcodec(s, 0x19, s->mix.micpreamp = 1); /* turn on MIC preamp */
+ s->mix.imix = 1;
+ fs = get_fs();
+ set_fs(KERNEL_DS);
+ val = SOUND_MASK_LINE|SOUND_MASK_SYNTH|SOUND_MASK_CD;
+ mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val);
+ for (i = 0; i < sizeof(initvol)/sizeof(initvol[0]); i++) {
+ val = initvol[i].vol;
+ mixer_ioctl(s, initvol[i].mixch, (unsigned long)&val);
+ }
+ set_fs(fs);
+
+ /* register gameport */
+ if (gp)
+ gameport_register_port(gp);
+
+ /* store it in the driver field */
+ pci_set_drvdata(pcidev, s);
+ /* put it into driver list */
+ list_add_tail(&s->devs, &devs);
+ /* increment devindex */
+ if (devindex < NR_DEVICE-1)
+ devindex++;
+ return 0;
+
+ err_dev5:
+ unregister_sound_midi(s->dev_midi);
+ err_dev4:
+ unregister_sound_dsp(s->dev_dac);
+ err_dev3:
+ unregister_sound_mixer(s->dev_mixer);
+ err_dev2:
+ unregister_sound_dsp(s->dev_audio);
+ err_dev1:
+ printk(KERN_ERR "es1370: cannot register misc device\n");
+ free_irq(s->irq, s);
+ if (s->gameport) {
+ release_region(s->gameport->io, JOY_EXTENT);
+ gameport_free_port(s->gameport);
+ }
+ err_irq:
+ release_region(s->io, ES1370_EXTENT);
+ err_region:
+ kfree(s);
+ return ret;
+}
+
+static void __devexit es1370_remove(struct pci_dev *dev)
+{
+ struct es1370_state *s = pci_get_drvdata(dev);
+
+ if (!s)
+ return;
+ list_del(&s->devs);
+ outl(CTRL_SERR_DIS | (1 << CTRL_SH_WTSRSEL), s->io+ES1370_REG_CONTROL); /* switch everything off */
+ outl(0, s->io+ES1370_REG_SERIAL_CONTROL); /* clear serial interrupts */
+ synchronize_irq(s->irq);
+ free_irq(s->irq, s);
+ if (s->gameport) {
+ int gpio = s->gameport->io;
+ gameport_unregister_port(s->gameport);
+ release_region(gpio, JOY_EXTENT);
+ }
+ release_region(s->io, ES1370_EXTENT);
+ unregister_sound_dsp(s->dev_audio);
+ unregister_sound_mixer(s->dev_mixer);
+ unregister_sound_dsp(s->dev_dac);
+ unregister_sound_midi(s->dev_midi);
+ pci_free_consistent(dev, 16, s->bugbuf_cpu, s->bugbuf_dma);
+ kfree(s);
+ pci_set_drvdata(dev, NULL);
+}
+
+static struct pci_device_id id_table[] = {
+ { PCI_VENDOR_ID_ENSONIQ, PCI_DEVICE_ID_ENSONIQ_ES1370, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, id_table);
+
+static struct pci_driver es1370_driver = {
+ .name = "es1370",
+ .id_table = id_table,
+ .probe = es1370_probe,
+ .remove = __devexit_p(es1370_remove),
+};
+
+static int __init init_es1370(void)
+{
+ printk(KERN_INFO "es1370: version v0.38 time " __TIME__ " " __DATE__ "\n");
+ return pci_module_init(&es1370_driver);
+}
+
+static void __exit cleanup_es1370(void)
+{
+ printk(KERN_INFO "es1370: unloading\n");
+ pci_unregister_driver(&es1370_driver);
+}
+
+module_init(init_es1370);
+module_exit(cleanup_es1370);
+
+/* --------------------------------------------------------------------- */
+
+#ifndef MODULE
+
+/* format is: es1370=lineout[,micbias]] */
+
+static int __init es1370_setup(char *str)
+{
+ static unsigned __initdata nr_dev = 0;
+
+ if (nr_dev >= NR_DEVICE)
+ return 0;
+
+ (void)
+ ((get_option(&str,&lineout [nr_dev]) == 2)
+ && get_option(&str,&micbias [nr_dev])
+ );
+
+ nr_dev++;
+ return 1;
+}
+
+__setup("es1370=", es1370_setup);
+
+#endif /* MODULE */
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-15 19:18:17 +0000