Linux-2.6.12-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!
diff --git a/sound/oss/aci.c b/sound/oss/aci.c
new file mode 100644
index 0000000..3928c28
--- /dev/null
+++ b/sound/oss/aci.c
@@ -0,0 +1,711 @@
+/*
+ * Audio Command Interface (ACI) driver (sound/aci.c)
+ *
+ * ACI is a protocol used to communicate with the microcontroller on
+ * some sound cards produced by miro, e.g. the miroSOUND PCM12 and
+ * PCM20. The ACI has been developed for miro by Norberto Pellicci
+ * <pellicci@home.com>. Special thanks to both him and miro for
+ * providing the ACI specification.
+ *
+ * The main function of the ACI is to control the mixer and to get a
+ * product identification. On the PCM20, ACI also controls the radio
+ * tuner on this card, this is supported in the Video for Linux
+ * miropcm20 driver.
+ * -
+ * This is a fullfeatured implementation. Unsupported features
+ * are bugs... (:
+ *
+ * It is not longer necessary to load the mad16 module first. The
+ * user is currently responsible to set the mad16 mixer correctly.
+ *
+ * To toggle the solo mode for full duplex operation just use the OSS
+ * record switch for the pcm ('wave') controller. Robert
+ * -
+ *
+ * Revision history:
+ *
+ * 1995-11-10 Markus Kuhn <mskuhn@cip.informatik.uni-erlangen.de>
+ * First version written.
+ * 1995-12-31 Markus Kuhn
+ * Second revision, general code cleanup.
+ * 1996-05-16 Hannu Savolainen
+ * Integrated with other parts of the driver.
+ * 1996-05-28 Markus Kuhn
+ * Initialize CS4231A mixer, make ACI first mixer,
+ * use new private mixer API for solo mode.
+ * 1998-08-18 Ruurd Reitsma <R.A.Reitsma@wbmt.tudelft.nl>
+ * Small modification to export ACI functions and
+ * complete modularisation.
+ * 2000-06-20 Robert Siemer <Robert.Siemer@gmx.de>
+ * Don't initialize the CS4231A mixer anymore, so the code is
+ * working again, and other small changes to fit in todays
+ * kernels.
+ * 2000-08-26 Robert Siemer
+ * Clean up and rewrite for 2.4.x. Maybe it's SMP safe now... (:
+ * ioctl bugfix, and integration of solo-mode into OSS-API,
+ * added (OSS-limited) equalizer support, return value bugfix,
+ * changed param aci_reset to reset, new params: ide, wss.
+ * 2001-04-20 Robert Siemer
+ * even more cleanups...
+ * 2001-10-08 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ * Get rid of check_region, .bss optimizations, use set_current_state
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/slab.h>
+#include <asm/semaphore.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include "sound_config.h"
+
+int aci_port; /* as determined by bit 4 in the OPTi 929 MC4 register */
+static int aci_idcode[2]; /* manufacturer and product ID */
+int aci_version; /* ACI firmware version */
+
+EXPORT_SYMBOL(aci_port);
+EXPORT_SYMBOL(aci_version);
+
+#include "aci.h"
+
+
+static int aci_solo; /* status bit of the card that can't be *
+ * checked with ACI versions prior to 0xb0 */
+static int aci_amp; /* status bit for power-amp/line-out level
+ but I have no docs about what is what... */
+static int aci_micpreamp=3; /* microphone preamp-level that can't be *
+ * checked with ACI versions prior to 0xb0 */
+
+static int mixer_device;
+static struct semaphore aci_sem;
+
+#ifdef MODULE
+static int reset;
+module_param(reset, bool, 0);
+MODULE_PARM_DESC(reset,"When set to 1, reset aci mixer.");
+#else
+static int reset = 1;
+#endif
+
+static int ide=-1;
+module_param(ide, int, 0);
+MODULE_PARM_DESC(ide,"1 enable, 0 disable ide-port - untested"
+ " default: do nothing");
+static int wss=-1;
+module_param(wss, int, 0);
+MODULE_PARM_DESC(wss,"change between ACI/WSS-mixer; use 0 and 1 - untested"
+ " default: do nothing; for PCM1-pro only");
+
+#ifdef DEBUG
+static void print_bits(unsigned char c)
+{
+ int j;
+ printk(KERN_DEBUG "aci: ");
+
+ for (j=7; j>=0; j--) {
+ printk("%d", (c >> j) & 0x1);
+ }
+
+ printk("\n");
+}
+#endif
+
+/*
+ * This busy wait code normally requires less than 15 loops and
+ * practically always less than 100 loops on my i486/DX2 66 MHz.
+ *
+ * Warning: Waiting on the general status flag after reseting the MUTE
+ * function can take a VERY long time, because the PCM12 does some kind
+ * of fade-in effect. For this reason, access to the MUTE function has
+ * not been implemented at all.
+ *
+ * - The OSS interface has no mute option. It takes about 3 seconds to
+ * fade-in on my PCM20. busy_wait() handles it great now... Robert
+ */
+
+static int busy_wait(void)
+{
+ #define MINTIME 500
+ long timeout;
+ unsigned char byte;
+
+ for (timeout = 1; timeout <= MINTIME+30; timeout++) {
+ if (((byte=inb(BUSY_REGISTER)) & 1) == 0) {
+ if (timeout >= MINTIME)
+ printk(KERN_DEBUG "aci: Got READYFLAG in round %ld.\n", timeout-MINTIME);
+ return byte;
+ }
+ if (timeout >= MINTIME) {
+ long out=10*HZ;
+ switch (timeout-MINTIME) {
+ case 0 ... 9:
+ out /= 10;
+ case 10 ... 19:
+ out /= 10;
+ case 20 ... 30:
+ out /= 10;
+ default:
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(out);
+ break;
+ }
+ }
+ }
+ printk(KERN_WARNING "aci: busy_wait() time out.\n");
+ return -EBUSY;
+}
+
+/* The four ACI command types are fucked up. [-:
+ * implied is: 1w - special case for INIT
+ * write is: 2w1r
+ * read is: x(1w1r) where x is 1 or 2 (1 CHECK_SIG, 1 CHECK_STER,
+ * 1 VERSION, 2 IDCODE)
+ * the command is only in the first write, rest is protocol overhead
+ *
+ * indexed is technically a write and used for STATUS
+ * and the special case for TUNE is: 3w1r
+ *
+ * Here the new general sheme: TUNE --> aci_rw_cmd(x, y, z)
+ * indexed and write --> aci_rw_cmd(x, y, -1)
+ * implied and read (x=1) --> aci_rw_cmd(x, -1, -1)
+ *
+ * Read (x>=2) is not implemented (only used during initialization).
+ * Use aci_idcode[2] and aci_version... Robert
+ */
+
+/* Some notes for error detection: theoretically it is possible.
+ * But it doubles the I/O-traffic from ww(r) to wwwrw(r) in the normal
+ * case and doesn't seem to be designed for that... Robert
+ */
+
+static inline int aci_rawwrite(unsigned char byte)
+{
+ if (busy_wait() >= 0) {
+#ifdef DEBUG
+ printk(KERN_DEBUG "aci_rawwrite(%d)\n", byte);
+#endif
+ outb(byte, COMMAND_REGISTER);
+ return 0;
+ } else
+ return -EBUSY;
+}
+
+static inline int aci_rawread(void)
+{
+ unsigned char byte;
+
+ if (busy_wait() >= 0) {
+ byte=inb(STATUS_REGISTER);
+#ifdef DEBUG
+ printk(KERN_DEBUG "%d = aci_rawread()\n", byte);
+#endif
+ return byte;
+ } else
+ return -EBUSY;
+}
+
+
+int aci_rw_cmd(int write1, int write2, int write3)
+{
+ int write[] = {write1, write2, write3};
+ int read = -EINTR, i;
+
+ if (down_interruptible(&aci_sem))
+ goto out;
+
+ for (i=0; i<3; i++) {
+ if (write[i]< 0 || write[i] > 255)
+ break;
+ else {
+ read = aci_rawwrite(write[i]);
+ if (read < 0)
+ goto out_up;
+ }
+
+ }
+
+ read = aci_rawread();
+out_up: up(&aci_sem);
+out: return read;
+}
+
+EXPORT_SYMBOL(aci_rw_cmd);
+
+static int setvolume(int __user *arg,
+ unsigned char left_index, unsigned char right_index)
+{
+ int vol, ret, uservol, buf;
+
+ __get_user(uservol, arg);
+
+ /* left channel */
+ vol = uservol & 0xff;
+ if (vol > 100)
+ vol = 100;
+ vol = SCALE(100, 0x20, vol);
+ if ((buf=aci_write_cmd(left_index, 0x20 - vol))<0)
+ return buf;
+ ret = SCALE(0x20, 100, vol);
+
+
+ /* right channel */
+ vol = (uservol >> 8) & 0xff;
+ if (vol > 100)
+ vol = 100;
+ vol = SCALE(100, 0x20, vol);
+ if ((buf=aci_write_cmd(right_index, 0x20 - vol))<0)
+ return buf;
+ ret |= SCALE(0x20, 100, vol) << 8;
+
+ __put_user(ret, arg);
+
+ return 0;
+}
+
+static int getvolume(int __user *arg,
+ unsigned char left_index, unsigned char right_index)
+{
+ int vol;
+ int buf;
+
+ /* left channel */
+ if ((buf=aci_indexed_cmd(ACI_STATUS, left_index))<0)
+ return buf;
+ vol = SCALE(0x20, 100, buf < 0x20 ? 0x20-buf : 0);
+
+ /* right channel */
+ if ((buf=aci_indexed_cmd(ACI_STATUS, right_index))<0)
+ return buf;
+ vol |= SCALE(0x20, 100, buf < 0x20 ? 0x20-buf : 0) << 8;
+
+ __put_user(vol, arg);
+
+ return 0;
+}
+
+
+/* The equalizer is somewhat strange on the ACI. From -12dB to +12dB
+ * write: 0xff..down.to..0x80==0x00..up.to..0x7f
+ */
+
+static inline unsigned int eq_oss2aci(unsigned int vol)
+{
+ int boost=0;
+ unsigned int ret;
+
+ if (vol > 100)
+ vol = 100;
+ if (vol > 50) {
+ vol -= 51;
+ boost=1;
+ }
+ if (boost)
+ ret=SCALE(49, 0x7e, vol)+1;
+ else
+ ret=0xff - SCALE(50, 0x7f, vol);
+ return ret;
+}
+
+static inline unsigned int eq_aci2oss(unsigned int vol)
+{
+ if (vol < 0x80)
+ return SCALE(0x7f, 50, vol) + 50;
+ else
+ return SCALE(0x7f, 50, 0xff-vol);
+}
+
+
+static int setequalizer(int __user *arg,
+ unsigned char left_index, unsigned char right_index)
+{
+ int buf;
+ unsigned int vol;
+
+ __get_user(vol, arg);
+
+ /* left channel */
+ if ((buf=aci_write_cmd(left_index, eq_oss2aci(vol & 0xff)))<0)
+ return buf;
+
+ /* right channel */
+ if ((buf=aci_write_cmd(right_index, eq_oss2aci((vol>>8) & 0xff)))<0)
+ return buf;
+
+ /* the ACI equalizer is more precise */
+ return 0;
+}
+
+static int getequalizer(int __user *arg,
+ unsigned char left_index, unsigned char right_index)
+{
+ int buf;
+ unsigned int vol;
+
+ /* left channel */
+ if ((buf=aci_indexed_cmd(ACI_STATUS, left_index))<0)
+ return buf;
+ vol = eq_aci2oss(buf);
+
+ /* right channel */
+ if ((buf=aci_indexed_cmd(ACI_STATUS, right_index))<0)
+ return buf;
+ vol |= eq_aci2oss(buf) << 8;
+
+ __put_user(vol, arg);
+
+ return 0;
+}
+
+static int aci_mixer_ioctl (int dev, unsigned int cmd, void __user * arg)
+{
+ int vol, buf;
+ int __user *p = arg;
+
+ switch (cmd) {
+ case SOUND_MIXER_WRITE_VOLUME:
+ return setvolume(p, 0x01, 0x00);
+ case SOUND_MIXER_WRITE_CD:
+ return setvolume(p, 0x3c, 0x34);
+ case SOUND_MIXER_WRITE_MIC:
+ return setvolume(p, 0x38, 0x30);
+ case SOUND_MIXER_WRITE_LINE:
+ return setvolume(p, 0x39, 0x31);
+ case SOUND_MIXER_WRITE_SYNTH:
+ return setvolume(p, 0x3b, 0x33);
+ case SOUND_MIXER_WRITE_PCM:
+ return setvolume(p, 0x3a, 0x32);
+ case MIXER_WRITE(SOUND_MIXER_RADIO): /* fall through */
+ case SOUND_MIXER_WRITE_LINE1: /* AUX1 or radio */
+ return setvolume(p, 0x3d, 0x35);
+ case SOUND_MIXER_WRITE_LINE2: /* AUX2 */
+ return setvolume(p, 0x3e, 0x36);
+ case SOUND_MIXER_WRITE_BASS: /* set band one and two */
+ if (aci_idcode[1]=='C') {
+ if ((buf=setequalizer(p, 0x48, 0x40)) ||
+ (buf=setequalizer(p, 0x49, 0x41)));
+ return buf;
+ }
+ break;
+ case SOUND_MIXER_WRITE_TREBLE: /* set band six and seven */
+ if (aci_idcode[1]=='C') {
+ if ((buf=setequalizer(p, 0x4d, 0x45)) ||
+ (buf=setequalizer(p, 0x4e, 0x46)));
+ return buf;
+ }
+ break;
+ case SOUND_MIXER_WRITE_IGAIN: /* MIC pre-amp */
+ if (aci_idcode[1]=='B' || aci_idcode[1]=='C') {
+ __get_user(vol, p);
+ vol = vol & 0xff;
+ if (vol > 100)
+ vol = 100;
+ vol = SCALE(100, 3, vol);
+ if ((buf=aci_write_cmd(ACI_WRITE_IGAIN, vol))<0)
+ return buf;
+ aci_micpreamp = vol;
+ vol = SCALE(3, 100, vol);
+ vol |= (vol << 8);
+ __put_user(vol, p);
+ return 0;
+ }
+ break;
+ case SOUND_MIXER_WRITE_OGAIN: /* Power-amp/line-out level */
+ if (aci_idcode[1]=='A' || aci_idcode[1]=='B') {
+ __get_user(buf, p);
+ buf = buf & 0xff;
+ if (buf > 50)
+ vol = 1;
+ else
+ vol = 0;
+ if ((buf=aci_write_cmd(ACI_SET_POWERAMP, vol))<0)
+ return buf;
+ aci_amp = vol;
+ if (aci_amp)
+ buf = (100 || 100<<8);
+ else
+ buf = 0;
+ __put_user(buf, p);
+ return 0;
+ }
+ break;
+ case SOUND_MIXER_WRITE_RECSRC:
+ /* handle solo mode control */
+ __get_user(buf, p);
+ /* unset solo when RECSRC for PCM is requested */
+ if (aci_idcode[1]=='B' || aci_idcode[1]=='C') {
+ vol = !(buf & SOUND_MASK_PCM);
+ if ((buf=aci_write_cmd(ACI_SET_SOLOMODE, vol))<0)
+ return buf;
+ aci_solo = vol;
+ }
+ buf = (SOUND_MASK_CD| SOUND_MASK_MIC| SOUND_MASK_LINE|
+ SOUND_MASK_SYNTH| SOUND_MASK_LINE2);
+ if (aci_idcode[1] == 'C') /* PCM20 radio */
+ buf |= SOUND_MASK_RADIO;
+ else
+ buf |= SOUND_MASK_LINE1;
+ if (!aci_solo)
+ buf |= SOUND_MASK_PCM;
+ __put_user(buf, p);
+ return 0;
+ case SOUND_MIXER_READ_DEVMASK:
+ buf = (SOUND_MASK_VOLUME | SOUND_MASK_CD |
+ SOUND_MASK_MIC | SOUND_MASK_LINE |
+ SOUND_MASK_SYNTH | SOUND_MASK_PCM |
+ SOUND_MASK_LINE2);
+ switch (aci_idcode[1]) {
+ case 'C': /* PCM20 radio */
+ buf |= (SOUND_MASK_RADIO | SOUND_MASK_IGAIN |
+ SOUND_MASK_BASS | SOUND_MASK_TREBLE);
+ break;
+ case 'B': /* PCM12 */
+ buf |= (SOUND_MASK_LINE1 | SOUND_MASK_IGAIN |
+ SOUND_MASK_OGAIN);
+ break;
+ case 'A': /* PCM1-pro */
+ buf |= (SOUND_MASK_LINE1 | SOUND_MASK_OGAIN);
+ break;
+ default:
+ buf |= SOUND_MASK_LINE1;
+ }
+ __put_user(buf, p);
+ return 0;
+ case SOUND_MIXER_READ_STEREODEVS:
+ buf = (SOUND_MASK_VOLUME | SOUND_MASK_CD |
+ SOUND_MASK_MIC | SOUND_MASK_LINE |
+ SOUND_MASK_SYNTH | SOUND_MASK_PCM |
+ SOUND_MASK_LINE2);
+ switch (aci_idcode[1]) {
+ case 'C': /* PCM20 radio */
+ buf |= (SOUND_MASK_RADIO |
+ SOUND_MASK_BASS | SOUND_MASK_TREBLE);
+ break;
+ default:
+ buf |= SOUND_MASK_LINE1;
+ }
+ __put_user(buf, p);
+ return 0;
+ case SOUND_MIXER_READ_RECMASK:
+ buf = (SOUND_MASK_CD| SOUND_MASK_MIC| SOUND_MASK_LINE|
+ SOUND_MASK_SYNTH| SOUND_MASK_LINE2| SOUND_MASK_PCM);
+ if (aci_idcode[1] == 'C') /* PCM20 radio */
+ buf |= SOUND_MASK_RADIO;
+ else
+ buf |= SOUND_MASK_LINE1;
+
+ __put_user(buf, p);
+ return 0;
+ case SOUND_MIXER_READ_RECSRC:
+ buf = (SOUND_MASK_CD | SOUND_MASK_MIC | SOUND_MASK_LINE |
+ SOUND_MASK_SYNTH | SOUND_MASK_LINE2);
+ /* do we need aci_solo or can I get it from the ACI? */
+ switch (aci_idcode[1]) {
+ case 'B': /* PCM12 */
+ case 'C': /* PCM20 radio */
+ if (aci_version >= 0xb0) {
+ if ((vol=aci_rw_cmd(ACI_STATUS,
+ ACI_S_GENERAL, -1))<0)
+ return vol;
+ if (vol & 0x20)
+ buf |= SOUND_MASK_PCM;
+ }
+ else
+ if (!aci_solo)
+ buf |= SOUND_MASK_PCM;
+ break;
+ default:
+ buf |= SOUND_MASK_PCM;
+ }
+ if (aci_idcode[1] == 'C') /* PCM20 radio */
+ buf |= SOUND_MASK_RADIO;
+ else
+ buf |= SOUND_MASK_LINE1;
+
+ __put_user(buf, p);
+ return 0;
+ case SOUND_MIXER_READ_CAPS:
+ __put_user(0, p);
+ return 0;
+ case SOUND_MIXER_READ_VOLUME:
+ return getvolume(p, 0x04, 0x03);
+ case SOUND_MIXER_READ_CD:
+ return getvolume(p, 0x0a, 0x09);
+ case SOUND_MIXER_READ_MIC:
+ return getvolume(p, 0x06, 0x05);
+ case SOUND_MIXER_READ_LINE:
+ return getvolume(p, 0x08, 0x07);
+ case SOUND_MIXER_READ_SYNTH:
+ return getvolume(p, 0x0c, 0x0b);
+ case SOUND_MIXER_READ_PCM:
+ return getvolume(p, 0x0e, 0x0d);
+ case MIXER_READ(SOUND_MIXER_RADIO): /* fall through */
+ case SOUND_MIXER_READ_LINE1: /* AUX1 */
+ return getvolume(p, 0x11, 0x10);
+ case SOUND_MIXER_READ_LINE2: /* AUX2 */
+ return getvolume(p, 0x13, 0x12);
+ case SOUND_MIXER_READ_BASS: /* get band one */
+ if (aci_idcode[1]=='C') {
+ return getequalizer(p, 0x23, 0x22);
+ }
+ break;
+ case SOUND_MIXER_READ_TREBLE: /* get band seven */
+ if (aci_idcode[1]=='C') {
+ return getequalizer(p, 0x2f, 0x2e);
+ }
+ break;
+ case SOUND_MIXER_READ_IGAIN: /* MIC pre-amp */
+ if (aci_idcode[1]=='B' || aci_idcode[1]=='C') {
+ /* aci_micpreamp or ACI? */
+ if (aci_version >= 0xb0) {
+ if ((buf=aci_indexed_cmd(ACI_STATUS,
+ ACI_S_READ_IGAIN))<0)
+ return buf;
+ }
+ else
+ buf=aci_micpreamp;
+ vol = SCALE(3, 100, buf <= 3 ? buf : 3);
+ vol |= vol << 8;
+ __put_user(vol, p);
+ return 0;
+ }
+ break;
+ case SOUND_MIXER_READ_OGAIN:
+ if (aci_amp)
+ buf = (100 || 100<<8);
+ else
+ buf = 0;
+ __put_user(buf, p);
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static struct mixer_operations aci_mixer_operations =
+{
+ .owner = THIS_MODULE,
+ .id = "ACI",
+ .ioctl = aci_mixer_ioctl
+};
+
+/*
+ * There is also an internal mixer in the codec (CS4231A or AD1845),
+ * that deserves no purpose in an ACI based system which uses an
+ * external ACI controlled stereo mixer. Make sure that this codec
+ * mixer has the AUX1 input selected as the recording source, that the
+ * input gain is set near maximum and that the other channels going
+ * from the inputs to the codec output are muted.
+ */
+
+static int __init attach_aci(void)
+{
+ char *boardname;
+ int i, rc = -EBUSY;
+
+ init_MUTEX(&aci_sem);
+
+ outb(0xE3, 0xf8f); /* Write MAD16 password */
+ aci_port = (inb(0xf90) & 0x10) ?
+ 0x344: 0x354; /* Get aci_port from MC4_PORT */
+
+ if (!request_region(aci_port, 3, "sound mixer (ACI)")) {
+ printk(KERN_NOTICE
+ "aci: I/O area 0x%03x-0x%03x already used.\n",
+ aci_port, aci_port+2);
+ goto out;
+ }
+
+ /* force ACI into a known state */
+ rc = -EFAULT;
+ for (i=0; i<3; i++)
+ if (aci_rw_cmd(ACI_ERROR_OP, -1, -1)<0)
+ goto out_release_region;
+
+ /* official this is one aci read call: */
+ rc = -EFAULT;
+ if ((aci_idcode[0]=aci_rw_cmd(ACI_READ_IDCODE, -1, -1))<0 ||
+ (aci_idcode[1]=aci_rw_cmd(ACI_READ_IDCODE, -1, -1))<0) {
+ printk(KERN_ERR "aci: Failed to read idcode on 0x%03x.\n",
+ aci_port);
+ goto out_release_region;
+ }
+
+ if ((aci_version=aci_rw_cmd(ACI_READ_VERSION, -1, -1))<0) {
+ printk(KERN_ERR "aci: Failed to read version on 0x%03x.\n",
+ aci_port);
+ goto out_release_region;
+ }
+
+ if (aci_idcode[0] == 'm') {
+ /* It looks like a miro sound card. */
+ switch (aci_idcode[1]) {
+ case 'A':
+ boardname = "PCM1 pro / early PCM12";
+ break;
+ case 'B':
+ boardname = "PCM12";
+ break;
+ case 'C':
+ boardname = "PCM20 radio";
+ break;
+ default:
+ boardname = "unknown miro";
+ }
+ } else {
+ printk(KERN_WARNING "aci: Warning: unsupported card! - "
+ "no hardware, no specs...\n");
+ boardname = "unknown Cardinal Technologies";
+ }
+
+ printk(KERN_INFO "<ACI 0x%02x, id %02x/%02x \"%c/%c\", (%s)> at 0x%03x\n",
+ aci_version,
+ aci_idcode[0], aci_idcode[1],
+ aci_idcode[0], aci_idcode[1],
+ boardname, aci_port);
+
+ rc = -EBUSY;
+ if (reset) {
+ /* first write()s after reset fail with my PCM20 */
+ if (aci_rw_cmd(ACI_INIT, -1, -1)<0 ||
+ aci_rw_cmd(ACI_ERROR_OP, ACI_ERROR_OP, ACI_ERROR_OP)<0 ||
+ aci_rw_cmd(ACI_ERROR_OP, ACI_ERROR_OP, ACI_ERROR_OP)<0)
+ goto out_release_region;
+ }
+
+ /* the PCM20 is muted after reset (and reboot) */
+ if (aci_rw_cmd(ACI_SET_MUTE, 0x00, -1)<0)
+ goto out_release_region;
+
+ if (ide>=0)
+ if (aci_rw_cmd(ACI_SET_IDE, !ide, -1)<0)
+ goto out_release_region;
+
+ if (wss>=0 && aci_idcode[1]=='A')
+ if (aci_rw_cmd(ACI_SET_WSS, !!wss, -1)<0)
+ goto out_release_region;
+
+ mixer_device = sound_install_mixer(MIXER_DRIVER_VERSION, boardname,
+ &aci_mixer_operations,
+ sizeof(aci_mixer_operations), NULL);
+ rc = 0;
+ if (mixer_device < 0) {
+ printk(KERN_ERR "aci: Failed to install mixer.\n");
+ rc = mixer_device;
+ goto out_release_region;
+ } /* else Maybe initialize the CS4231A mixer here... */
+out: return rc;
+out_release_region:
+ release_region(aci_port, 3);
+ goto out;
+}
+
+static void __exit unload_aci(void)
+{
+ sound_unload_mixerdev(mixer_device);
+ release_region(aci_port, 3);
+}
+
+module_init(attach_aci);
+module_exit(unload_aci);
+MODULE_LICENSE("GPL");