--- /dev/null
+/*
+ * sound/oss/ad1848.c
+ *
+ * The low level driver for the AD1848/CS4248 codec chip which
+ * is used for example in the MS Sound System.
+ *
+ * The CS4231 which is used in the GUS MAX and some other cards is
+ * upwards compatible with AD1848 and this driver is able to drive it.
+ *
+ * CS4231A and AD1845 are upward compatible with CS4231. However
+ * the new features of these chips are different.
+ *
+ * CS4232 is a PnP audio chip which contains a CS4231A (and SB, MPU).
+ * CS4232A is an improved version of CS4232.
+ *
+ *
+ *
+ * Copyright (C) by Hannu Savolainen 1993-1997
+ *
+ * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
+ * Version 2 (June 1991). See the "COPYING" file distributed with this software
+ * for more info.
+ *
+ *
+ * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed)
+ * general sleep/wakeup clean up.
+ * Alan Cox : reformatted. Fixed SMP bugs. Moved to kernel alloc/free
+ * of irqs. Use dev_id.
+ * Christoph Hellwig : adapted to module_init/module_exit
+ * Aki Laukkanen : added power management support
+ * Arnaldo C. de Melo : added missing restore_flags in ad1848_resume
+ * Miguel Freitas : added ISA PnP support
+ * Alan Cox : Added CS4236->4239 identification
+ * Daniel T. Cobra : Alernate config/mixer for later chips
+ * Alan Cox : Merged chip idents and config code
+ *
+ * TODO
+ * APM save restore assist code on IBM thinkpad
+ *
+ * Status:
+ * Tested. Believed fully functional.
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/stddef.h>
+#include <linux/slab.h>
+#include <linux/isapnp.h>
+#include <linux/pnp.h>
+#include <linux/spinlock.h>
+
+#include "sound_config.h"
+
+#include "ad1848.h"
+#include "ad1848_mixer.h"
+
+typedef struct
+{
+ spinlock_t lock;
+ int base;
+ int irq;
+ int dma1, dma2;
+ int dual_dma; /* 1, when two DMA channels allocated */
+ int subtype;
+ unsigned char MCE_bit;
+ unsigned char saved_regs[64]; /* Includes extended register space */
+ int debug_flag;
+
+ int audio_flags;
+ int record_dev, playback_dev;
+
+ int xfer_count;
+ int audio_mode;
+ int open_mode;
+ int intr_active;
+ char *chip_name, *name;
+ int model;
+#define MD_1848 1
+#define MD_4231 2
+#define MD_4231A 3
+#define MD_1845 4
+#define MD_4232 5
+#define MD_C930 6
+#define MD_IWAVE 7
+#define MD_4235 8 /* Crystal Audio CS4235 */
+#define MD_1845_SSCAPE 9 /* Ensoniq Soundscape PNP*/
+#define MD_4236 10 /* 4236 and higher */
+#define MD_42xB 11 /* CS 42xB */
+#define MD_4239 12 /* CS4239 */
+
+ /* Mixer parameters */
+ int recmask;
+ int supported_devices, orig_devices;
+ int supported_rec_devices, orig_rec_devices;
+ int *levels;
+ short mixer_reroute[32];
+ int dev_no;
+ volatile unsigned long timer_ticks;
+ int timer_running;
+ int irq_ok;
+ mixer_ents *mix_devices;
+ int mixer_output_port;
+} ad1848_info;
+
+typedef struct ad1848_port_info
+{
+ int open_mode;
+ int speed;
+ unsigned char speed_bits;
+ int channels;
+ int audio_format;
+ unsigned char format_bits;
+}
+ad1848_port_info;
+
+static struct address_info cfg;
+static int nr_ad1848_devs;
+
+static bool deskpro_xl;
+static bool deskpro_m;
+static bool soundpro;
+
+static volatile signed char irq2dev[17] = {
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1
+};
+
+#ifndef EXCLUDE_TIMERS
+static int timer_installed = -1;
+#endif
+
+static int loaded;
+
+static int ad_format_mask[13 /*devc->model */ ] =
+{
+ 0,
+ AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW,
+ AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM,
+ AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM,
+ AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW, /* AD1845 */
+ AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM,
+ AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM,
+ AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM,
+ AFMT_U8 | AFMT_S16_LE /* CS4235 */,
+ AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW /* Ensoniq Soundscape*/,
+ AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM,
+ AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM,
+ AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM
+};
+
+static ad1848_info adev_info[MAX_AUDIO_DEV];
+
+#define io_Index_Addr(d) ((d)->base)
+#define io_Indexed_Data(d) ((d)->base+1)
+#define io_Status(d) ((d)->base+2)
+#define io_Polled_IO(d) ((d)->base+3)
+
+static struct {
+ unsigned char flags;
+#define CAP_F_TIMER 0x01
+} capabilities [10 /*devc->model */ ] = {
+ {0}
+ ,{0} /* MD_1848 */
+ ,{CAP_F_TIMER} /* MD_4231 */
+ ,{CAP_F_TIMER} /* MD_4231A */
+ ,{CAP_F_TIMER} /* MD_1845 */
+ ,{CAP_F_TIMER} /* MD_4232 */
+ ,{0} /* MD_C930 */
+ ,{CAP_F_TIMER} /* MD_IWAVE */
+ ,{0} /* MD_4235 */
+ ,{CAP_F_TIMER} /* MD_1845_SSCAPE */
+};
+
+#ifdef CONFIG_PNP
+static int isapnp = 1;
+static int isapnpjump;
+static bool reverse;
+
+static int audio_activated;
+#else
+static int isapnp;
+#endif
+
+
+
+static int ad1848_open(int dev, int mode);
+static void ad1848_close(int dev);
+static void ad1848_output_block(int dev, unsigned long buf, int count, int intrflag);
+static void ad1848_start_input(int dev, unsigned long buf, int count, int intrflag);
+static int ad1848_prepare_for_output(int dev, int bsize, int bcount);
+static int ad1848_prepare_for_input(int dev, int bsize, int bcount);
+static void ad1848_halt(int dev);
+static void ad1848_halt_input(int dev);
+static void ad1848_halt_output(int dev);
+static void ad1848_trigger(int dev, int bits);
+static irqreturn_t adintr(int irq, void *dev_id);
+
+#ifndef EXCLUDE_TIMERS
+static int ad1848_tmr_install(int dev);
+static void ad1848_tmr_reprogram(int dev);
+#endif
+
+static int ad_read(ad1848_info * devc, int reg)
+{
+ int x;
+ int timeout = 900000;
+
+ while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */
+ timeout--;
+
+ if(reg < 32)
+ {
+ outb(((unsigned char) (reg & 0xff) | devc->MCE_bit), io_Index_Addr(devc));
+ x = inb(io_Indexed_Data(devc));
+ }
+ else
+ {
+ int xreg, xra;
+
+ xreg = (reg & 0xff) - 32;
+ xra = (((xreg & 0x0f) << 4) & 0xf0) | 0x08 | ((xreg & 0x10) >> 2);
+ outb(((unsigned char) (23 & 0xff) | devc->MCE_bit), io_Index_Addr(devc));
+ outb(((unsigned char) (xra & 0xff)), io_Indexed_Data(devc));
+ x = inb(io_Indexed_Data(devc));
+ }
+
+ return x;
+}
+
+static void ad_write(ad1848_info * devc, int reg, int data)
+{
+ int timeout = 900000;
+
+ while (timeout > 0 && inb(devc->base) == 0x80) /* Are we initializing */
+ timeout--;
+
+ if(reg < 32)
+ {
+ outb(((unsigned char) (reg & 0xff) | devc->MCE_bit), io_Index_Addr(devc));
+ outb(((unsigned char) (data & 0xff)), io_Indexed_Data(devc));
+ }
+ else
+ {
+ int xreg, xra;
+
+ xreg = (reg & 0xff) - 32;
+ xra = (((xreg & 0x0f) << 4) & 0xf0) | 0x08 | ((xreg & 0x10) >> 2);
+ outb(((unsigned char) (23 & 0xff) | devc->MCE_bit), io_Index_Addr(devc));
+ outb(((unsigned char) (xra & 0xff)), io_Indexed_Data(devc));
+ outb((unsigned char) (data & 0xff), io_Indexed_Data(devc));
+ }
+}
+
+static void wait_for_calibration(ad1848_info * devc)
+{
+ int timeout = 0;
+
+ /*
+ * Wait until the auto calibration process has finished.
+ *
+ * 1) Wait until the chip becomes ready (reads don't return 0x80).
+ * 2) Wait until the ACI bit of I11 gets on and then off.
+ */
+
+ timeout = 100000;
+ while (timeout > 0 && inb(devc->base) == 0x80)
+ timeout--;
+ if (inb(devc->base) & 0x80)
+ printk(KERN_WARNING "ad1848: Auto calibration timed out(1).\n");
+
+ timeout = 100;
+ while (timeout > 0 && !(ad_read(devc, 11) & 0x20))
+ timeout--;
+ if (!(ad_read(devc, 11) & 0x20))
+ return;
+
+ timeout = 80000;
+ while (timeout > 0 && (ad_read(devc, 11) & 0x20))
+ timeout--;
+ if (ad_read(devc, 11) & 0x20)
+ if ((devc->model != MD_1845) && (devc->model != MD_1845_SSCAPE))
+ printk(KERN_WARNING "ad1848: Auto calibration timed out(3).\n");
+}
+
+static void ad_mute(ad1848_info * devc)
+{
+ int i;
+ unsigned char prev;
+
+ /*
+ * Save old register settings and mute output channels
+ */
+
+ for (i = 6; i < 8; i++)
+ {
+ prev = devc->saved_regs[i] = ad_read(devc, i);
+ }
+
+}
+
+static void ad_unmute(ad1848_info * devc)
+{
+}
+
+static void ad_enter_MCE(ad1848_info * devc)
+{
+ int timeout = 1000;
+ unsigned short prev;
+
+ while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */
+ timeout--;
+
+ devc->MCE_bit = 0x40;
+ prev = inb(io_Index_Addr(devc));
+ if (prev & 0x40)
+ {
+ return;
+ }
+ outb((devc->MCE_bit), io_Index_Addr(devc));
+}
+
+static void ad_leave_MCE(ad1848_info * devc)
+{
+ unsigned char prev, acal;
+ int timeout = 1000;
+
+ while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */
+ timeout--;
+
+ acal = ad_read(devc, 9);
+
+ devc->MCE_bit = 0x00;
+ prev = inb(io_Index_Addr(devc));
+ outb((0x00), io_Index_Addr(devc)); /* Clear the MCE bit */
+
+ if ((prev & 0x40) == 0) /* Not in MCE mode */
+ {
+ return;
+ }
+ outb((0x00), io_Index_Addr(devc)); /* Clear the MCE bit */
+ if (acal & 0x08) /* Auto calibration is enabled */
+ wait_for_calibration(devc);
+}
+
+static int ad1848_set_recmask(ad1848_info * devc, int mask)
+{
+ unsigned char recdev;
+ int i, n;
+ unsigned long flags;
+
+ mask &= devc->supported_rec_devices;
+
+ /* Rename the mixer bits if necessary */
+ for (i = 0; i < 32; i++)
+ {
+ if (devc->mixer_reroute[i] != i)
+ {
+ if (mask & (1 << i))
+ {
+ mask &= ~(1 << i);
+ mask |= (1 << devc->mixer_reroute[i]);
+ }
+ }
+ }
+
+ n = 0;
+ for (i = 0; i < 32; i++) /* Count selected device bits */
+ if (mask & (1 << i))
+ n++;
+
+ spin_lock_irqsave(&devc->lock,flags);
+ if (!soundpro) {
+ if (n == 0)
+ mask = SOUND_MASK_MIC;
+ else if (n != 1) { /* Too many devices selected */
+ mask &= ~devc->recmask; /* Filter out active settings */
+
+ n = 0;
+ for (i = 0; i < 32; i++) /* Count selected device bits */
+ if (mask & (1 << i))
+ n++;
+
+ if (n != 1)
+ mask = SOUND_MASK_MIC;
+ }
+ switch (mask) {
+ case SOUND_MASK_MIC:
+ recdev = 2;
+ break;
+
+ case SOUND_MASK_LINE:
+ case SOUND_MASK_LINE3:
+ recdev = 0;
+ break;
+
+ case SOUND_MASK_CD:
+ case SOUND_MASK_LINE1:
+ recdev = 1;
+ break;
+
+ case SOUND_MASK_IMIX:
+ recdev = 3;
+ break;
+
+ default:
+ mask = SOUND_MASK_MIC;
+ recdev = 2;
+ }
+
+ recdev <<= 6;
+ ad_write(devc, 0, (ad_read(devc, 0) & 0x3f) | recdev);
+ ad_write(devc, 1, (ad_read(devc, 1) & 0x3f) | recdev);
+ } else { /* soundpro */
+ unsigned char val;
+ int set_rec_bit;
+ int j;
+
+ for (i = 0; i < 32; i++) { /* For each bit */
+ if ((devc->supported_rec_devices & (1 << i)) == 0)
+ continue; /* Device not supported */
+
+ for (j = LEFT_CHN; j <= RIGHT_CHN; j++) {
+ if (devc->mix_devices[i][j].nbits == 0) /* Inexistent channel */
+ continue;
+
+ /*
+ * This is tricky:
+ * set_rec_bit becomes 1 if the corresponding bit in mask is set
+ * then it gets flipped if the polarity is inverse
+ */
+ set_rec_bit = ((mask & (1 << i)) != 0) ^ devc->mix_devices[i][j].recpol;
+
+ val = ad_read(devc, devc->mix_devices[i][j].recreg);
+ val &= ~(1 << devc->mix_devices[i][j].recpos);
+ val |= (set_rec_bit << devc->mix_devices[i][j].recpos);
+ ad_write(devc, devc->mix_devices[i][j].recreg, val);
+ }
+ }
+ }
+ spin_unlock_irqrestore(&devc->lock,flags);
+
+ /* Rename the mixer bits back if necessary */
+ for (i = 0; i < 32; i++)
+ {
+ if (devc->mixer_reroute[i] != i)
+ {
+ if (mask & (1 << devc->mixer_reroute[i]))
+ {
+ mask &= ~(1 << devc->mixer_reroute[i]);
+ mask |= (1 << i);
+ }
+ }
+ }
+ devc->recmask = mask;
+ return mask;
+}
+
+static void oss_change_bits(ad1848_info *devc, unsigned char *regval,
+ unsigned char *muteval, int dev, int chn, int newval)
+{
+ unsigned char mask;
+ int shift;
+ int mute;
+ int mutemask;
+ int set_mute_bit;
+
+ set_mute_bit = (newval == 0) ^ devc->mix_devices[dev][chn].mutepol;
+
+ if (devc->mix_devices[dev][chn].polarity == 1) /* Reverse */
+ newval = 100 - newval;
+
+ mask = (1 << devc->mix_devices[dev][chn].nbits) - 1;
+ shift = devc->mix_devices[dev][chn].bitpos;
+
+ if (devc->mix_devices[dev][chn].mutepos == 8)
+ { /* if there is no mute bit */
+ mute = 0; /* No mute bit; do nothing special */
+ mutemask = ~0; /* No mute bit; do nothing special */
+ }
+ else
+ {
+ mute = (set_mute_bit << devc->mix_devices[dev][chn].mutepos);
+ mutemask = ~(1 << devc->mix_devices[dev][chn].mutepos);
+ }
+
+ newval = (int) ((newval * mask) + 50) / 100; /* Scale it */
+ *regval &= ~(mask << shift); /* Clear bits */
+ *regval |= (newval & mask) << shift; /* Set new value */
+
+ *muteval &= mutemask;
+ *muteval |= mute;
+}
+
+static int ad1848_mixer_get(ad1848_info * devc, int dev)
+{
+ if (!((1 << dev) & devc->supported_devices))
+ return -EINVAL;
+
+ dev = devc->mixer_reroute[dev];
+
+ return devc->levels[dev];
+}
+
+static void ad1848_mixer_set_channel(ad1848_info *devc, int dev, int value, int channel)
+{
+ int regoffs, muteregoffs;
+ unsigned char val, muteval;
+ unsigned long flags;
+
+ regoffs = devc->mix_devices[dev][channel].regno;
+ muteregoffs = devc->mix_devices[dev][channel].mutereg;
+ val = ad_read(devc, regoffs);
+
+ if (muteregoffs != regoffs) {
+ muteval = ad_read(devc, muteregoffs);
+ oss_change_bits(devc, &val, &muteval, dev, channel, value);
+ }
+ else
+ oss_change_bits(devc, &val, &val, dev, channel, value);
+
+ spin_lock_irqsave(&devc->lock,flags);
+ ad_write(devc, regoffs, val);
+ devc->saved_regs[regoffs] = val;
+ if (muteregoffs != regoffs) {
+ ad_write(devc, muteregoffs, muteval);
+ devc->saved_regs[muteregoffs] = muteval;
+ }
+ spin_unlock_irqrestore(&devc->lock,flags);
+}
+
+static int ad1848_mixer_set(ad1848_info * devc, int dev, int value)
+{
+ int left = value & 0x000000ff;
+ int right = (value & 0x0000ff00) >> 8;
+ int retvol;
+
+ if (dev > 31)
+ return -EINVAL;
+
+ if (!(devc->supported_devices & (1 << dev)))
+ return -EINVAL;
+
+ dev = devc->mixer_reroute[dev];
+
+ if (devc->mix_devices[dev][LEFT_CHN].nbits == 0)
+ return -EINVAL;
+
+ if (left > 100)
+ left = 100;
+ if (right > 100)
+ right = 100;
+
+ if (devc->mix_devices[dev][RIGHT_CHN].nbits == 0) /* Mono control */
+ right = left;
+
+ retvol = left | (right << 8);
+
+ /* Scale volumes */
+ left = mix_cvt[left];
+ right = mix_cvt[right];
+
+ devc->levels[dev] = retvol;
+
+ /*
+ * Set the left channel
+ */
+ ad1848_mixer_set_channel(devc, dev, left, LEFT_CHN);
+
+ /*
+ * Set the right channel
+ */
+ if (devc->mix_devices[dev][RIGHT_CHN].nbits == 0)
+ goto out;
+ ad1848_mixer_set_channel(devc, dev, right, RIGHT_CHN);
+
+ out:
+ return retvol;
+}
+
+static void ad1848_mixer_reset(ad1848_info * devc)
+{
+ int i;
+ char name[32];
+ unsigned long flags;
+
+ devc->mix_devices = &(ad1848_mix_devices[0]);
+
+ sprintf(name, "%s_%d", devc->chip_name, nr_ad1848_devs);
+
+ for (i = 0; i < 32; i++)
+ devc->mixer_reroute[i] = i;
+
+ devc->supported_rec_devices = MODE1_REC_DEVICES;
+
+ switch (devc->model)
+ {
+ case MD_4231:
+ case MD_4231A:
+ case MD_1845:
+ case MD_1845_SSCAPE:
+ devc->supported_devices = MODE2_MIXER_DEVICES;
+ break;
+
+ case MD_C930:
+ devc->supported_devices = C930_MIXER_DEVICES;
+ devc->mix_devices = &(c930_mix_devices[0]);
+ break;
+
+ case MD_IWAVE:
+ devc->supported_devices = MODE3_MIXER_DEVICES;
+ devc->mix_devices = &(iwave_mix_devices[0]);
+ break;
+
+ case MD_42xB:
+ case MD_4239:
+ devc->mix_devices = &(cs42xb_mix_devices[0]);
+ devc->supported_devices = MODE3_MIXER_DEVICES;
+ break;
+ case MD_4232:
+ case MD_4235:
+ case MD_4236:
+ devc->supported_devices = MODE3_MIXER_DEVICES;
+ break;
+
+ case MD_1848:
+ if (soundpro) {
+ devc->supported_devices = SPRO_MIXER_DEVICES;
+ devc->supported_rec_devices = SPRO_REC_DEVICES;
+ devc->mix_devices = &(spro_mix_devices[0]);
+ break;
+ }
+
+ default:
+ devc->supported_devices = MODE1_MIXER_DEVICES;
+ }
+
+ devc->orig_devices = devc->supported_devices;
+ devc->orig_rec_devices = devc->supported_rec_devices;
+
+ devc->levels = load_mixer_volumes(name, default_mixer_levels, 1);
+
+ for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
+ {
+ if (devc->supported_devices & (1 << i))
+ ad1848_mixer_set(devc, i, devc->levels[i]);
+ }
+
+ ad1848_set_recmask(devc, SOUND_MASK_MIC);
+
+ devc->mixer_output_port = devc->levels[31] | AUDIO_HEADPHONE | AUDIO_LINE_OUT;
+
+ spin_lock_irqsave(&devc->lock,flags);
+ if (!soundpro) {
+ if (devc->mixer_output_port & AUDIO_SPEAKER)
+ ad_write(devc, 26, ad_read(devc, 26) & ~0x40); /* Unmute mono out */
+ else
+ ad_write(devc, 26, ad_read(devc, 26) | 0x40); /* Mute mono out */
+ } else {
+ /*
+ * From the "wouldn't it be nice if the mixer API had (better)
+ * support for custom stuff" category
+ */
+ /* Enable surround mode and SB16 mixer */
+ ad_write(devc, 16, 0x60);
+ }
+ spin_unlock_irqrestore(&devc->lock,flags);
+}
+
+static int ad1848_mixer_ioctl(int dev, unsigned int cmd, void __user *arg)
+{
+ ad1848_info *devc = mixer_devs[dev]->devc;
+ int val;
+
+ if (cmd == SOUND_MIXER_PRIVATE1)
+ {
+ if (get_user(val, (int __user *)arg))
+ return -EFAULT;
+
+ if (val != 0xffff)
+ {
+ unsigned long flags;
+ val &= (AUDIO_SPEAKER | AUDIO_HEADPHONE | AUDIO_LINE_OUT);
+ devc->mixer_output_port = val;
+ val |= AUDIO_HEADPHONE | AUDIO_LINE_OUT; /* Always on */
+ devc->mixer_output_port = val;
+ spin_lock_irqsave(&devc->lock,flags);
+ if (val & AUDIO_SPEAKER)
+ ad_write(devc, 26, ad_read(devc, 26) & ~0x40); /* Unmute mono out */
+ else
+ ad_write(devc, 26, ad_read(devc, 26) | 0x40); /* Mute mono out */
+ spin_unlock_irqrestore(&devc->lock,flags);
+ }
+ val = devc->mixer_output_port;
+ return put_user(val, (int __user *)arg);
+ }
+ if (cmd == SOUND_MIXER_PRIVATE2)
+ {
+ if (get_user(val, (int __user *)arg))
+ return -EFAULT;
+ return(ad1848_control(AD1848_MIXER_REROUTE, val));
+ }
+ if (((cmd >> 8) & 0xff) == 'M')
+ {
+ if (_SIOC_DIR(cmd) & _SIOC_WRITE)
+ {
+ switch (cmd & 0xff)
+ {
+ case SOUND_MIXER_RECSRC:
+ if (get_user(val, (int __user *)arg))
+ return -EFAULT;
+ val = ad1848_set_recmask(devc, val);
+ break;
+
+ default:
+ if (get_user(val, (int __user *)arg))
+ return -EFAULT;
+ val = ad1848_mixer_set(devc, cmd & 0xff, val);
+ break;
+ }
+ return put_user(val, (int __user *)arg);
+ }
+ else
+ {
+ switch (cmd & 0xff)
+ {
+ /*
+ * Return parameters
+ */
+
+ case SOUND_MIXER_RECSRC:
+ val = devc->recmask;
+ break;
+
+ case SOUND_MIXER_DEVMASK:
+ val = devc->supported_devices;
+ break;
+
+ case SOUND_MIXER_STEREODEVS:
+ val = devc->supported_devices;
+ if (devc->model != MD_C930)
+ val &= ~(SOUND_MASK_SPEAKER | SOUND_MASK_IMIX);
+ break;
+
+ case SOUND_MIXER_RECMASK:
+ val = devc->supported_rec_devices;
+ break;
+
+ case SOUND_MIXER_CAPS:
+ val=SOUND_CAP_EXCL_INPUT;
+ break;
+
+ default:
+ val = ad1848_mixer_get(devc, cmd & 0xff);
+ break;
+ }
+ return put_user(val, (int __user *)arg);
+ }
+ }
+ else
+ return -EINVAL;
+}
+
+static int ad1848_set_speed(int dev, int arg)
+{
+ ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
+ ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
+
+ /*
+ * The sampling speed is encoded in the least significant nibble of I8. The
+ * LSB selects the clock source (0=24.576 MHz, 1=16.9344 MHz) and other
+ * three bits select the divisor (indirectly):
+ *
+ * The available speeds are in the following table. Keep the speeds in
+ * the increasing order.
+ */
+ typedef struct
+ {
+ int speed;
+ unsigned char bits;
+ }
+ speed_struct;
+
+ static speed_struct speed_table[] =
+ {
+ {5510, (0 << 1) | 1},
+ {5510, (0 << 1) | 1},
+ {6620, (7 << 1) | 1},
+ {8000, (0 << 1) | 0},
+ {9600, (7 << 1) | 0},
+ {11025, (1 << 1) | 1},
+ {16000, (1 << 1) | 0},
+ {18900, (2 << 1) | 1},
+ {22050, (3 << 1) | 1},
+ {27420, (2 << 1) | 0},
+ {32000, (3 << 1) | 0},
+ {33075, (6 << 1) | 1},
+ {37800, (4 << 1) | 1},
+ {44100, (5 << 1) | 1},
+ {48000, (6 << 1) | 0}
+ };
+
+ int i, n, selected = -1;
+
+ n = sizeof(speed_table) / sizeof(speed_struct);
+
+ if (arg <= 0)
+ return portc->speed;
+
+ if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE) /* AD1845 has different timer than others */
+ {
+ if (arg < 4000)
+ arg = 4000;
+ if (arg > 50000)
+ arg = 50000;
+
+ portc->speed = arg;
+ portc->speed_bits = speed_table[3].bits;
+ return portc->speed;
+ }
+ if (arg < speed_table[0].speed)
+ selected = 0;
+ if (arg > speed_table[n - 1].speed)
+ selected = n - 1;
+
+ for (i = 1 /*really */ ; selected == -1 && i < n; i++)
+ {
+ if (speed_table[i].speed == arg)
+ selected = i;
+ else if (speed_table[i].speed > arg)
+ {
+ int diff1, diff2;
+
+ diff1 = arg - speed_table[i - 1].speed;
+ diff2 = speed_table[i].speed - arg;
+
+ if (diff1 < diff2)
+ selected = i - 1;
+ else
+ selected = i;
+ }
+ }
+ if (selected == -1)
+ {
+ printk(KERN_WARNING "ad1848: Can't find speed???\n");
+ selected = 3;
+ }
+ portc->speed = speed_table[selected].speed;
+ portc->speed_bits = speed_table[selected].bits;
+ return portc->speed;
+}
+
+static short ad1848_set_channels(int dev, short arg)
+{
+ ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
+
+ if (arg != 1 && arg != 2)
+ return portc->channels;
+
+ portc->channels = arg;
+ return arg;
+}
+
+static unsigned int ad1848_set_bits(int dev, unsigned int arg)
+{
+ ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
+ ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
+
+ static struct format_tbl
+ {
+ int format;
+ unsigned char bits;
+ }
+ format2bits[] =
+ {
+ {
+ 0, 0
+ }
+ ,
+ {
+ AFMT_MU_LAW, 1
+ }
+ ,
+ {
+ AFMT_A_LAW, 3
+ }
+ ,
+ {
+ AFMT_IMA_ADPCM, 5
+ }
+ ,
+ {
+ AFMT_U8, 0
+ }
+ ,
+ {
+ AFMT_S16_LE, 2
+ }
+ ,
+ {
+ AFMT_S16_BE, 6
+ }
+ ,
+ {
+ AFMT_S8, 0
+ }
+ ,
+ {
+ AFMT_U16_LE, 0
+ }
+ ,
+ {
+ AFMT_U16_BE, 0
+ }
+ };
+ int i, n = sizeof(format2bits) / sizeof(struct format_tbl);
+
+ if (arg == 0)
+ return portc->audio_format;
+
+ if (!(arg & ad_format_mask[devc->model]))
+ arg = AFMT_U8;
+
+ portc->audio_format = arg;
+
+ for (i = 0; i < n; i++)
+ if (format2bits[i].format == arg)
+ {
+ if ((portc->format_bits = format2bits[i].bits) == 0)
+ return portc->audio_format = AFMT_U8; /* Was not supported */
+
+ return arg;
+ }
+ /* Still hanging here. Something must be terribly wrong */
+ portc->format_bits = 0;
+ return portc->audio_format = AFMT_U8;
+}
+
+static struct audio_driver ad1848_audio_driver =
+{
+ .owner = THIS_MODULE,
+ .open = ad1848_open,
+ .close = ad1848_close,
+ .output_block = ad1848_output_block,
+ .start_input = ad1848_start_input,
+ .prepare_for_input = ad1848_prepare_for_input,
+ .prepare_for_output = ad1848_prepare_for_output,
+ .halt_io = ad1848_halt,
+ .halt_input = ad1848_halt_input,
+ .halt_output = ad1848_halt_output,
+ .trigger = ad1848_trigger,
+ .set_speed = ad1848_set_speed,
+ .set_bits = ad1848_set_bits,
+ .set_channels = ad1848_set_channels
+};
+
+static struct mixer_operations ad1848_mixer_operations =
+{
+ .owner = THIS_MODULE,
+ .id = "SOUNDPORT",
+ .name = "AD1848/CS4248/CS4231",
+ .ioctl = ad1848_mixer_ioctl
+};
+
+static int ad1848_open(int dev, int mode)
+{
+ ad1848_info *devc;
+ ad1848_port_info *portc;
+ unsigned long flags;
+
+ if (dev < 0 || dev >= num_audiodevs)
+ return -ENXIO;
+
+ devc = (ad1848_info *) audio_devs[dev]->devc;
+ portc = (ad1848_port_info *) audio_devs[dev]->portc;
+
+ /* here we don't have to protect against intr */
+ spin_lock(&devc->lock);
+ if (portc->open_mode || (devc->open_mode & mode))
+ {
+ spin_unlock(&devc->lock);
+ return -EBUSY;
+ }
+ devc->dual_dma = 0;
+
+ if (audio_devs[dev]->flags & DMA_DUPLEX)
+ {
+ devc->dual_dma = 1;
+ }
+ devc->intr_active = 0;
+ devc->audio_mode = 0;
+ devc->open_mode |= mode;
+ portc->open_mode = mode;
+ spin_unlock(&devc->lock);
+ ad1848_trigger(dev, 0);
+
+ if (mode & OPEN_READ)
+ devc->record_dev = dev;
+ if (mode & OPEN_WRITE)
+ devc->playback_dev = dev;
+/*
+ * Mute output until the playback really starts. This decreases clicking (hope so).
+ */
+ spin_lock_irqsave(&devc->lock,flags);
+ ad_mute(devc);
+ spin_unlock_irqrestore(&devc->lock,flags);
+
+ return 0;
+}
+
+static void ad1848_close(int dev)
+{
+ unsigned long flags;
+ ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
+ ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
+
+ devc->intr_active = 0;
+ ad1848_halt(dev);
+
+ spin_lock_irqsave(&devc->lock,flags);
+
+ devc->audio_mode = 0;
+ devc->open_mode &= ~portc->open_mode;
+ portc->open_mode = 0;
+
+ ad_unmute(devc);
+ spin_unlock_irqrestore(&devc->lock,flags);
+}
+
+static void ad1848_output_block(int dev, unsigned long buf, int count, int intrflag)
+{
+ unsigned long flags, cnt;
+ ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
+ ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
+
+ cnt = count;
+
+ if (portc->audio_format == AFMT_IMA_ADPCM)
+ {
+ cnt /= 4;
+ }
+ else
+ {
+ if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE)) /* 16 bit data */
+ cnt >>= 1;
+ }
+ if (portc->channels > 1)
+ cnt >>= 1;
+ cnt--;
+
+ if ((devc->audio_mode & PCM_ENABLE_OUTPUT) && (audio_devs[dev]->flags & DMA_AUTOMODE) &&
+ intrflag &&
+ cnt == devc->xfer_count)
+ {
+ devc->audio_mode |= PCM_ENABLE_OUTPUT;
+ devc->intr_active = 1;
+ return; /*
+ * Auto DMA mode on. No need to react
+ */
+ }
+ spin_lock_irqsave(&devc->lock,flags);
+
+ ad_write(devc, 15, (unsigned char) (cnt & 0xff));
+ ad_write(devc, 14, (unsigned char) ((cnt >> 8) & 0xff));
+
+ devc->xfer_count = cnt;
+ devc->audio_mode |= PCM_ENABLE_OUTPUT;
+ devc->intr_active = 1;
+ spin_unlock_irqrestore(&devc->lock,flags);
+}
+
+static void ad1848_start_input(int dev, unsigned long buf, int count, int intrflag)
+{
+ unsigned long flags, cnt;
+ ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
+ ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
+
+ cnt = count;
+ if (portc->audio_format == AFMT_IMA_ADPCM)
+ {
+ cnt /= 4;
+ }
+ else
+ {
+ if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE)) /* 16 bit data */
+ cnt >>= 1;
+ }
+ if (portc->channels > 1)
+ cnt >>= 1;
+ cnt--;
+
+ if ((devc->audio_mode & PCM_ENABLE_INPUT) && (audio_devs[dev]->flags & DMA_AUTOMODE) &&
+ intrflag &&
+ cnt == devc->xfer_count)
+ {
+ devc->audio_mode |= PCM_ENABLE_INPUT;
+ devc->intr_active = 1;
+ return; /*
+ * Auto DMA mode on. No need to react
+ */
+ }
+ spin_lock_irqsave(&devc->lock,flags);
+
+ if (devc->model == MD_1848)
+ {
+ ad_write(devc, 15, (unsigned char) (cnt & 0xff));
+ ad_write(devc, 14, (unsigned char) ((cnt >> 8) & 0xff));
+ }
+ else
+ {
+ ad_write(devc, 31, (unsigned char) (cnt & 0xff));
+ ad_write(devc, 30, (unsigned char) ((cnt >> 8) & 0xff));
+ }
+
+ ad_unmute(devc);
+
+ devc->xfer_count = cnt;
+ devc->audio_mode |= PCM_ENABLE_INPUT;
+ devc->intr_active = 1;
+ spin_unlock_irqrestore(&devc->lock,flags);
+}
+
+static int ad1848_prepare_for_output(int dev, int bsize, int bcount)
+{
+ int timeout;
+ unsigned char fs, old_fs, tmp = 0;
+ unsigned long flags;
+ ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
+ ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
+
+ ad_mute(devc);
+
+ spin_lock_irqsave(&devc->lock,flags);
+ fs = portc->speed_bits | (portc->format_bits << 5);
+
+ if (portc->channels > 1)
+ fs |= 0x10;
+
+ ad_enter_MCE(devc); /* Enables changes to the format select reg */
+
+ if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE) /* Use alternate speed select registers */
+ {
+ fs &= 0xf0; /* Mask off the rate select bits */
+
+ ad_write(devc, 22, (portc->speed >> 8) & 0xff); /* Speed MSB */
+ ad_write(devc, 23, portc->speed & 0xff); /* Speed LSB */
+ }
+ old_fs = ad_read(devc, 8);
+
+ if (devc->model == MD_4232 || devc->model >= MD_4236)
+ {
+ tmp = ad_read(devc, 16);
+ ad_write(devc, 16, tmp | 0x30);
+ }
+ if (devc->model == MD_IWAVE)
+ ad_write(devc, 17, 0xc2); /* Disable variable frequency select */
+
+ ad_write(devc, 8, fs);
+
+ /*
+ * Write to I8 starts resynchronization. Wait until it completes.
+ */
+
+ timeout = 0;
+ while (timeout < 100 && inb(devc->base) != 0x80)
+ timeout++;
+ timeout = 0;
+ while (timeout < 10000 && inb(devc->base) == 0x80)
+ timeout++;
+
+ if (devc->model >= MD_4232)
+ ad_write(devc, 16, tmp & ~0x30);
+
+ ad_leave_MCE(devc); /*
+ * Starts the calibration process.
+ */
+ spin_unlock_irqrestore(&devc->lock,flags);
+ devc->xfer_count = 0;
+
+#ifndef EXCLUDE_TIMERS
+ if (dev == timer_installed && devc->timer_running)
+ if ((fs & 0x01) != (old_fs & 0x01))
+ {
+ ad1848_tmr_reprogram(dev);
+ }
+#endif
+ ad1848_halt_output(dev);
+ return 0;
+}
+
+static int ad1848_prepare_for_input(int dev, int bsize, int bcount)
+{
+ int timeout;
+ unsigned char fs, old_fs, tmp = 0;
+ unsigned long flags;
+ ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
+ ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
+
+ if (devc->audio_mode)
+ return 0;
+
+ spin_lock_irqsave(&devc->lock,flags);
+ fs = portc->speed_bits | (portc->format_bits << 5);
+
+ if (portc->channels > 1)
+ fs |= 0x10;
+
+ ad_enter_MCE(devc); /* Enables changes to the format select reg */
+
+ if ((devc->model == MD_1845) || (devc->model == MD_1845_SSCAPE)) /* Use alternate speed select registers */
+ {
+ fs &= 0xf0; /* Mask off the rate select bits */
+
+ ad_write(devc, 22, (portc->speed >> 8) & 0xff); /* Speed MSB */
+ ad_write(devc, 23, portc->speed & 0xff); /* Speed LSB */
+ }
+ if (devc->model == MD_4232)
+ {
+ tmp = ad_read(devc, 16);
+ ad_write(devc, 16, tmp | 0x30);
+ }
+ if (devc->model == MD_IWAVE)
+ ad_write(devc, 17, 0xc2); /* Disable variable frequency select */
+
+ /*
+ * If mode >= 2 (CS4231), set I28. It's the capture format register.
+ */
+
+ if (devc->model != MD_1848)
+ {
+ old_fs = ad_read(devc, 28);
+ ad_write(devc, 28, fs);
+
+ /*
+ * Write to I28 starts resynchronization. Wait until it completes.
+ */
+
+ timeout = 0;
+ while (timeout < 100 && inb(devc->base) != 0x80)
+ timeout++;
+
+ timeout = 0;
+ while (timeout < 10000 && inb(devc->base) == 0x80)
+ timeout++;
+
+ if (devc->model != MD_1848 && devc->model != MD_1845 && devc->model != MD_1845_SSCAPE)
+ {
+ /*
+ * CS4231 compatible devices don't have separate sampling rate selection
+ * register for recording an playback. The I8 register is shared so we have to
+ * set the speed encoding bits of it too.
+ */
+ unsigned char tmp = portc->speed_bits | (ad_read(devc, 8) & 0xf0);
+
+ ad_write(devc, 8, tmp);
+ /*
+ * Write to I8 starts resynchronization. Wait until it completes.
+ */
+ timeout = 0;
+ while (timeout < 100 && inb(devc->base) != 0x80)
+ timeout++;
+
+ timeout = 0;
+ while (timeout < 10000 && inb(devc->base) == 0x80)
+ timeout++;
+ }
+ }
+ else
+ { /* For AD1848 set I8. */
+
+ old_fs = ad_read(devc, 8);
+ ad_write(devc, 8, fs);
+ /*
+ * Write to I8 starts resynchronization. Wait until it completes.
+ */
+ timeout = 0;
+ while (timeout < 100 && inb(devc->base) != 0x80)
+ timeout++;
+ timeout = 0;
+ while (timeout < 10000 && inb(devc->base) == 0x80)
+ timeout++;
+ }
+
+ if (devc->model == MD_4232)
+ ad_write(devc, 16, tmp & ~0x30);
+
+ ad_leave_MCE(devc); /*
+ * Starts the calibration process.
+ */
+ spin_unlock_irqrestore(&devc->lock,flags);
+ devc->xfer_count = 0;
+
+#ifndef EXCLUDE_TIMERS
+ if (dev == timer_installed && devc->timer_running)
+ {
+ if ((fs & 0x01) != (old_fs & 0x01))
+ {
+ ad1848_tmr_reprogram(dev);
+ }
+ }
+#endif
+ ad1848_halt_input(dev);
+ return 0;
+}
+
+static void ad1848_halt(int dev)
+{
+ ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
+ ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
+
+ unsigned char bits = ad_read(devc, 9);
+
+ if (bits & 0x01 && (portc->open_mode & OPEN_WRITE))
+ ad1848_halt_output(dev);
+
+ if (bits & 0x02 && (portc->open_mode & OPEN_READ))
+ ad1848_halt_input(dev);
+ devc->audio_mode = 0;
+}
+
+static void ad1848_halt_input(int dev)
+{
+ ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
+ unsigned long flags;
+
+ if (!(ad_read(devc, 9) & 0x02))
+ return; /* Capture not enabled */
+
+ spin_lock_irqsave(&devc->lock,flags);
+
+ ad_mute(devc);
+
+ {
+ int tmout;
+
+ if(!isa_dma_bridge_buggy)
+ disable_dma(audio_devs[dev]->dmap_in->dma);
+
+ for (tmout = 0; tmout < 100000; tmout++)
+ if (ad_read(devc, 11) & 0x10)
+ break;
+ ad_write(devc, 9, ad_read(devc, 9) & ~0x02); /* Stop capture */
+
+ if(!isa_dma_bridge_buggy)
+ enable_dma(audio_devs[dev]->dmap_in->dma);
+ devc->audio_mode &= ~PCM_ENABLE_INPUT;
+ }
+
+ outb(0, io_Status(devc)); /* Clear interrupt status */
+ outb(0, io_Status(devc)); /* Clear interrupt status */
+
+ devc->audio_mode &= ~PCM_ENABLE_INPUT;
+
+ spin_unlock_irqrestore(&devc->lock,flags);
+}
+
+static void ad1848_halt_output(int dev)
+{
+ ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
+ unsigned long flags;
+
+ if (!(ad_read(devc, 9) & 0x01))
+ return; /* Playback not enabled */
+
+ spin_lock_irqsave(&devc->lock,flags);
+
+ ad_mute(devc);
+ {
+ int tmout;
+
+ if(!isa_dma_bridge_buggy)
+ disable_dma(audio_devs[dev]->dmap_out->dma);
+
+ for (tmout = 0; tmout < 100000; tmout++)
+ if (ad_read(devc, 11) & 0x10)
+ break;
+ ad_write(devc, 9, ad_read(devc, 9) & ~0x01); /* Stop playback */
+
+ if(!isa_dma_bridge_buggy)
+ enable_dma(audio_devs[dev]->dmap_out->dma);
+
+ devc->audio_mode &= ~PCM_ENABLE_OUTPUT;
+ }
+
+ outb((0), io_Status(devc)); /* Clear interrupt status */
+ outb((0), io_Status(devc)); /* Clear interrupt status */
+
+ devc->audio_mode &= ~PCM_ENABLE_OUTPUT;
+
+ spin_unlock_irqrestore(&devc->lock,flags);
+}
+
+static void ad1848_trigger(int dev, int state)
+{
+ ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
+ ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
+ unsigned long flags;
+ unsigned char tmp, old;
+
+ spin_lock_irqsave(&devc->lock,flags);
+ state &= devc->audio_mode;
+
+ tmp = old = ad_read(devc, 9);
+
+ if (portc->open_mode & OPEN_READ)
+ {
+ if (state & PCM_ENABLE_INPUT)
+ tmp |= 0x02;
+ else
+ tmp &= ~0x02;
+ }
+ if (portc->open_mode & OPEN_WRITE)
+ {
+ if (state & PCM_ENABLE_OUTPUT)
+ tmp |= 0x01;
+ else
+ tmp &= ~0x01;
+ }
+ /* ad_mute(devc); */
+ if (tmp != old)
+ {
+ ad_write(devc, 9, tmp);
+ ad_unmute(devc);
+ }
+ spin_unlock_irqrestore(&devc->lock,flags);
+}
+
+static void ad1848_init_hw(ad1848_info * devc)
+{
+ int i;
+ int *init_values;
+
+ /*
+ * Initial values for the indirect registers of CS4248/AD1848.
+ */
+ static int init_values_a[] =
+ {
+ 0xa8, 0xa8, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00,
+ 0x00, 0x0c, 0x02, 0x00, 0x8a, 0x01, 0x00, 0x00,
+
+ /* Positions 16 to 31 just for CS4231/2 and ad1845 */
+ 0x80, 0x00, 0x10, 0x10, 0x00, 0x00, 0x1f, 0x40,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+ };
+
+ static int init_values_b[] =
+ {
+ /*
+ Values for the newer chips
+ Some of the register initialization values were changed. In
+ order to get rid of the click that preceded PCM playback,
+ calibration was disabled on the 10th byte. On that same byte,
+ dual DMA was enabled; on the 11th byte, ADC dithering was
+ enabled, since that is theoretically desirable; on the 13th
+ byte, Mode 3 was selected, to enable access to extended
+ registers.
+ */
+ 0xa8, 0xa8, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00,
+ 0x00, 0x00, 0x06, 0x00, 0xe0, 0x01, 0x00, 0x00,
+ 0x80, 0x00, 0x10, 0x10, 0x00, 0x00, 0x1f, 0x40,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+ };
+
+ /*
+ * Select initialisation data
+ */
+
+ init_values = init_values_a;
+ if(devc->model >= MD_4236)
+ init_values = init_values_b;
+
+ for (i = 0; i < 16; i++)
+ ad_write(devc, i, init_values[i]);
+
+
+ ad_mute(devc); /* Initialize some variables */
+ ad_unmute(devc); /* Leave it unmuted now */
+
+ if (devc->model > MD_1848)
+ {
+ if (devc->model == MD_1845_SSCAPE)
+ ad_write(devc, 12, ad_read(devc, 12) | 0x50);
+ else
+ ad_write(devc, 12, ad_read(devc, 12) | 0x40); /* Mode2 = enabled */
+
+ if (devc->model == MD_IWAVE)
+ ad_write(devc, 12, 0x6c); /* Select codec mode 3 */
+
+ if (devc->model != MD_1845_SSCAPE)
+ for (i = 16; i < 32; i++)
+ ad_write(devc, i, init_values[i]);
+
+ if (devc->model == MD_IWAVE)
+ ad_write(devc, 16, 0x30); /* Playback and capture counters enabled */
+ }
+ if (devc->model > MD_1848)
+ {
+ if (devc->audio_flags & DMA_DUPLEX)
+ ad_write(devc, 9, ad_read(devc, 9) & ~0x04); /* Dual DMA mode */
+ else
+ ad_write(devc, 9, ad_read(devc, 9) | 0x04); /* Single DMA mode */
+
+ if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE)
+ ad_write(devc, 27, ad_read(devc, 27) | 0x08); /* Alternate freq select enabled */
+
+ if (devc->model == MD_IWAVE)
+ { /* Some magic Interwave specific initialization */
+ ad_write(devc, 12, 0x6c); /* Select codec mode 3 */
+ ad_write(devc, 16, 0x30); /* Playback and capture counters enabled */
+ ad_write(devc, 17, 0xc2); /* Alternate feature enable */
+ }
+ }
+ else
+ {
+ devc->audio_flags &= ~DMA_DUPLEX;
+ ad_write(devc, 9, ad_read(devc, 9) | 0x04); /* Single DMA mode */
+ if (soundpro)
+ ad_write(devc, 12, ad_read(devc, 12) | 0x40); /* Mode2 = enabled */
+ }
+
+ outb((0), io_Status(devc)); /* Clear pending interrupts */
+
+ /*
+ * Toggle the MCE bit. It completes the initialization phase.
+ */
+
+ ad_enter_MCE(devc); /* In case the bit was off */
+ ad_leave_MCE(devc);
+
+ ad1848_mixer_reset(devc);
+}
+
+int ad1848_detect(struct resource *ports, int *ad_flags, int *osp)
+{
+ unsigned char tmp;
+ ad1848_info *devc = &adev_info[nr_ad1848_devs];
+ unsigned char tmp1 = 0xff, tmp2 = 0xff;
+ int optiC930 = 0; /* OPTi 82C930 flag */
+ int interwave = 0;
+ int ad1847_flag = 0;
+ int cs4248_flag = 0;
+ int sscape_flag = 0;
+ int io_base = ports->start;
+
+ int i;
+
+ DDB(printk("ad1848_detect(%x)\n", io_base));
+
+ if (ad_flags)
+ {
+ if (*ad_flags == 0x12345678)
+ {
+ interwave = 1;
+ *ad_flags = 0;
+ }
+
+ if (*ad_flags == 0x87654321)
+ {
+ sscape_flag = 1;
+ *ad_flags = 0;
+ }
+
+ if (*ad_flags == 0x12345677)
+ {
+ cs4248_flag = 1;
+ *ad_flags = 0;
+ }
+ }
+ if (nr_ad1848_devs >= MAX_AUDIO_DEV)
+ {
+ printk(KERN_ERR "ad1848 - Too many audio devices\n");
+ return 0;
+ }
+ spin_lock_init(&devc->lock);
+ devc->base = io_base;
+ devc->irq_ok = 0;
+ devc->timer_running = 0;
+ devc->MCE_bit = 0x40;
+ devc->irq = 0;
+ devc->open_mode = 0;
+ devc->chip_name = devc->name = "AD1848";
+ devc->model = MD_1848; /* AD1848 or CS4248 */
+ devc->levels = NULL;
+ devc->debug_flag = 0;
+
+ /*
+ * Check that the I/O address is in use.
+ *
+ * The bit 0x80 of the base I/O port is known to be 0 after the
+ * chip has performed its power on initialization. Just assume
+ * this has happened before the OS is starting.
+ *
+ * If the I/O address is unused, it typically returns 0xff.
+ */
+
+ if (inb(devc->base) == 0xff)
+ {
+ DDB(printk("ad1848_detect: The base I/O address appears to be dead\n"));
+ }
+
+ /*
+ * Wait for the device to stop initialization
+ */
+
+ DDB(printk("ad1848_detect() - step 0\n"));
+
+ for (i = 0; i < 10000000; i++)
+ {
+ unsigned char x = inb(devc->base);
+
+ if (x == 0xff || !(x & 0x80))
+ break;
+ }
+
+ DDB(printk("ad1848_detect() - step A\n"));
+
+ if (inb(devc->base) == 0x80) /* Not ready. Let's wait */
+ ad_leave_MCE(devc);
+
+ if ((inb(devc->base) & 0x80) != 0x00) /* Not a AD1848 */
+ {
+ DDB(printk("ad1848 detect error - step A (%02x)\n", (int) inb(devc->base)));
+ return 0;
+ }
+
+ /*
+ * Test if it's possible to change contents of the indirect registers.
+ * Registers 0 and 1 are ADC volume registers. The bit 0x10 is read only
+ * so try to avoid using it.
+ */
+
+ DDB(printk("ad1848_detect() - step B\n"));
+ ad_write(devc, 0, 0xaa);
+ ad_write(devc, 1, 0x45); /* 0x55 with bit 0x10 clear */
+
+ if ((tmp1 = ad_read(devc, 0)) != 0xaa || (tmp2 = ad_read(devc, 1)) != 0x45)
+ {
+ if (tmp2 == 0x65) /* AD1847 has couple of bits hardcoded to 1 */
+ ad1847_flag = 1;
+ else
+ {
+ DDB(printk("ad1848 detect error - step B (%x/%x)\n", tmp1, tmp2));
+ return 0;
+ }
+ }
+ DDB(printk("ad1848_detect() - step C\n"));
+ ad_write(devc, 0, 0x45);
+ ad_write(devc, 1, 0xaa);
+
+ if ((tmp1 = ad_read(devc, 0)) != 0x45 || (tmp2 = ad_read(devc, 1)) != 0xaa)
+ {
+ if (tmp2 == 0x8a) /* AD1847 has few bits hardcoded to 1 */
+ ad1847_flag = 1;
+ else
+ {
+ DDB(printk("ad1848 detect error - step C (%x/%x)\n", tmp1, tmp2));
+ return 0;
+ }
+ }
+
+ /*
+ * The indirect register I12 has some read only bits. Let's
+ * try to change them.
+ */
+
+ DDB(printk("ad1848_detect() - step D\n"));
+ tmp = ad_read(devc, 12);
+ ad_write(devc, 12, (~tmp) & 0x0f);
+
+ if ((tmp & 0x0f) != ((tmp1 = ad_read(devc, 12)) & 0x0f))
+ {
+ DDB(printk("ad1848 detect error - step D (%x)\n", tmp1));
+ return 0;
+ }
+
+ /*
+ * NOTE! Last 4 bits of the reg I12 tell the chip revision.
+ * 0x01=RevB and 0x0A=RevC.
+ */
+
+ /*
+ * The original AD1848/CS4248 has just 15 indirect registers. This means
+ * that I0 and I16 should return the same value (etc.).
+ * However this doesn't work with CS4248. Actually it seems to be impossible
+ * to detect if the chip is a CS4231 or CS4248.
+ * Ensure that the Mode2 enable bit of I12 is 0. Otherwise this test fails
+ * with CS4231.
+ */
+
+ /*
+ * OPTi 82C930 has mode2 control bit in another place. This test will fail
+ * with it. Accept this situation as a possible indication of this chip.
+ */
+
+ DDB(printk("ad1848_detect() - step F\n"));
+ ad_write(devc, 12, 0); /* Mode2=disabled */
+
+ for (i = 0; i < 16; i++)
+ {
+ if ((tmp1 = ad_read(devc, i)) != (tmp2 = ad_read(devc, i + 16)))
+ {
+ DDB(printk("ad1848 detect step F(%d/%x/%x) - OPTi chip???\n", i, tmp1, tmp2));
+ if (!ad1847_flag)
+ optiC930 = 1;
+ break;
+ }
+ }
+
+ /*
+ * Try to switch the chip to mode2 (CS4231) by setting the MODE2 bit (0x40).
+ * The bit 0x80 is always 1 in CS4248 and CS4231.
+ */
+
+ DDB(printk("ad1848_detect() - step G\n"));
+
+ if (ad_flags && *ad_flags == 400)
+ *ad_flags = 0;
+ else
+ ad_write(devc, 12, 0x40); /* Set mode2, clear 0x80 */
+
+
+ if (ad_flags)
+ *ad_flags = 0;
+
+ tmp1 = ad_read(devc, 12);
+ if (tmp1 & 0x80)
+ {
+ if (ad_flags)
+ *ad_flags |= AD_F_CS4248;
+
+ devc->chip_name = "CS4248"; /* Our best knowledge just now */
+ }
+ if (optiC930 || (tmp1 & 0xc0) == (0x80 | 0x40))
+ {
+ /*
+ * CS4231 detected - is it?
+ *
+ * Verify that setting I0 doesn't change I16.
+ */
+
+ DDB(printk("ad1848_detect() - step H\n"));
+ ad_write(devc, 16, 0); /* Set I16 to known value */
+
+ ad_write(devc, 0, 0x45);
+ if ((tmp1 = ad_read(devc, 16)) != 0x45) /* No change -> CS4231? */
+ {
+ ad_write(devc, 0, 0xaa);
+ if ((tmp1 = ad_read(devc, 16)) == 0xaa) /* Rotten bits? */
+ {
+ DDB(printk("ad1848 detect error - step H(%x)\n", tmp1));
+ return 0;
+ }
+
+ /*
+ * Verify that some bits of I25 are read only.
+ */
+
+ DDB(printk("ad1848_detect() - step I\n"));
+ tmp1 = ad_read(devc, 25); /* Original bits */
+ ad_write(devc, 25, ~tmp1); /* Invert all bits */
+ if ((ad_read(devc, 25) & 0xe7) == (tmp1 & 0xe7))
+ {
+ int id;
+
+ /*
+ * It's at least CS4231
+ */
+
+ devc->chip_name = "CS4231";
+ devc->model = MD_4231;
+
+ /*
+ * It could be an AD1845 or CS4231A as well.
+ * CS4231 and AD1845 report the same revision info in I25
+ * while the CS4231A reports different.
+ */
+
+ id = ad_read(devc, 25);
+ if ((id & 0xe7) == 0x80) /* Device busy??? */
+ id = ad_read(devc, 25);
+ if ((id & 0xe7) == 0x80) /* Device still busy??? */
+ id = ad_read(devc, 25);
+ DDB(printk("ad1848_detect() - step J (%02x/%02x)\n", id, ad_read(devc, 25)));
+
+ if ((id & 0xe7) == 0x80) {
+ /*
+ * It must be a CS4231 or AD1845. The register I23 of
+ * CS4231 is undefined and it appears to be read only.
+ * AD1845 uses I23 for setting sample rate. Assume
+ * the chip is AD1845 if I23 is changeable.
+ */
+
+ unsigned char tmp = ad_read(devc, 23);
+ ad_write(devc, 23, ~tmp);
+
+ if (interwave)
+ {
+ devc->model = MD_IWAVE;
+ devc->chip_name = "IWave";
+ }
+ else if (ad_read(devc, 23) != tmp) /* AD1845 ? */
+ {
+ devc->chip_name = "AD1845";
+ devc->model = MD_1845;
+ }
+ else if (cs4248_flag)
+ {
+ if (ad_flags)
+ *ad_flags |= AD_F_CS4248;
+ devc->chip_name = "CS4248";
+ devc->model = MD_1848;
+ ad_write(devc, 12, ad_read(devc, 12) & ~0x40); /* Mode2 off */
+ }
+ ad_write(devc, 23, tmp); /* Restore */
+ }
+ else
+ {
+ switch (id & 0x1f) {
+ case 3: /* CS4236/CS4235/CS42xB/CS4239 */
+ {
+ int xid;
+ ad_write(devc, 12, ad_read(devc, 12) | 0x60); /* switch to mode 3 */
+ ad_write(devc, 23, 0x9c); /* select extended register 25 */
+ xid = inb(io_Indexed_Data(devc));
+ ad_write(devc, 12, ad_read(devc, 12) & ~0x60); /* back to mode 0 */
+ switch (xid & 0x1f)
+ {
+ case 0x00:
+ devc->chip_name = "CS4237B(B)";
+ devc->model = MD_42xB;
+ break;
+ case 0x08:
+ /* Seems to be a 4238 ?? */
+ devc->chip_name = "CS4238";
+ devc->model = MD_42xB;
+ break;
+ case 0x09:
+ devc->chip_name = "CS4238B";
+ devc->model = MD_42xB;
+ break;
+ case 0x0b:
+ devc->chip_name = "CS4236B";
+ devc->model = MD_4236;
+ break;
+ case 0x10:
+ devc->chip_name = "CS4237B";
+ devc->model = MD_42xB;
+ break;
+ case 0x1d:
+ devc->chip_name = "CS4235";
+ devc->model = MD_4235;
+ break;
+ case 0x1e:
+ devc->chip_name = "CS4239";
+ devc->model = MD_4239;
+ break;
+ default:
+ printk("Chip ident is %X.\n", xid&0x1F);
+ devc->chip_name = "CS42xx";
+ devc->model = MD_4232;
+ break;
+ }
+ }
+ break;
+
+ case 2: /* CS4232/CS4232A */
+ devc->chip_name = "CS4232";
+ devc->model = MD_4232;
+ break;
+
+ case 0:
+ if ((id & 0xe0) == 0xa0)
+ {
+ devc->chip_name = "CS4231A";
+ devc->model = MD_4231A;
+ }
+ else
+ {
+ devc->chip_name = "CS4321";
+ devc->model = MD_4231;
+ }
+ break;
+
+ default: /* maybe */
+ DDB(printk("ad1848: I25 = %02x/%02x\n", ad_read(devc, 25), ad_read(devc, 25) & 0xe7));
+ if (optiC930)
+ {
+ devc->chip_name = "82C930";
+ devc->model = MD_C930;
+ }
+ else
+ {
+ devc->chip_name = "CS4231";
+ devc->model = MD_4231;
+ }
+ }
+ }
+ }
+ ad_write(devc, 25, tmp1); /* Restore bits */
+
+ DDB(printk("ad1848_detect() - step K\n"));
+ }
+ } else if (tmp1 == 0x0a) {
+ /*
+ * Is it perhaps a SoundPro CMI8330?
+ * If so, then we should be able to change indirect registers
+ * greater than I15 after activating MODE2, even though reading
+ * back I12 does not show it.
+ */
+
+ /*
+ * Let's try comparing register values
+ */
+ for (i = 0; i < 16; i++) {
+ if ((tmp1 = ad_read(devc, i)) != (tmp2 = ad_read(devc, i + 16))) {
+ DDB(printk("ad1848 detect step H(%d/%x/%x) - SoundPro chip?\n", i, tmp1, tmp2));
+ soundpro = 1;
+ devc->chip_name = "SoundPro CMI 8330";
+ break;
+ }
+ }
+ }
+
+ DDB(printk("ad1848_detect() - step L\n"));
+ if (ad_flags)
+ {
+ if (devc->model != MD_1848)
+ *ad_flags |= AD_F_CS4231;
+ }
+ DDB(printk("ad1848_detect() - Detected OK\n"));
+
+ if (devc->model == MD_1848 && ad1847_flag)
+ devc->chip_name = "AD1847";
+
+
+ if (sscape_flag == 1)
+ devc->model = MD_1845_SSCAPE;
+
+ return 1;
+}
+
+int ad1848_init (char *name, struct resource *ports, int irq, int dma_playback,
+ int dma_capture, int share_dma, int *osp, struct module *owner)
+{
+ /*
+ * NOTE! If irq < 0, there is another driver which has allocated the IRQ
+ * so that this driver doesn't need to allocate/deallocate it.
+ * The actually used IRQ is ABS(irq).
+ */
+
+ int my_dev;
+ char dev_name[100];
+ int e;
+
+ ad1848_info *devc = &adev_info[nr_ad1848_devs];
+
+ ad1848_port_info *portc = NULL;
+
+ devc->irq = (irq > 0) ? irq : 0;
+ devc->open_mode = 0;
+ devc->timer_ticks = 0;
+ devc->dma1 = dma_playback;
+ devc->dma2 = dma_capture;
+ devc->subtype = cfg.card_subtype;
+ devc->audio_flags = DMA_AUTOMODE;
+ devc->playback_dev = devc->record_dev = 0;
+ if (name != NULL)
+ devc->name = name;
+
+ if (name != NULL && name[0] != 0)
+ sprintf(dev_name,
+ "%s (%s)", name, devc->chip_name);
+ else
+ sprintf(dev_name,
+ "Generic audio codec (%s)", devc->chip_name);
+
+ rename_region(ports, devc->name);
+
+ conf_printf2(dev_name, devc->base, devc->irq, dma_playback, dma_capture);
+
+ if (devc->model == MD_1848 || devc->model == MD_C930)
+ devc->audio_flags |= DMA_HARDSTOP;
+
+ if (devc->model > MD_1848)
+ {
+ if (devc->dma1 == devc->dma2 || devc->dma2 == -1 || devc->dma1 == -1)
+ devc->audio_flags &= ~DMA_DUPLEX;
+ else
+ devc->audio_flags |= DMA_DUPLEX;
+ }
+
+ portc = kmalloc(sizeof(ad1848_port_info), GFP_KERNEL);
+ if(portc==NULL) {
+ release_region(devc->base, 4);
+ return -1;
+ }
+
+ if ((my_dev = sound_install_audiodrv(AUDIO_DRIVER_VERSION,
+ dev_name,
+ &ad1848_audio_driver,
+ sizeof(struct audio_driver),
+ devc->audio_flags,
+ ad_format_mask[devc->model],
+ devc,
+ dma_playback,
+ dma_capture)) < 0)
+ {
+ release_region(devc->base, 4);
+ kfree(portc);
+ return -1;
+ }
+
+ audio_devs[my_dev]->portc = portc;
+ audio_devs[my_dev]->mixer_dev = -1;
+ if (owner)
+ audio_devs[my_dev]->d->owner = owner;
+ memset((char *) portc, 0, sizeof(*portc));
+
+ nr_ad1848_devs++;
+
+ ad1848_init_hw(devc);
+
+ if (irq > 0)
+ {
+ devc->dev_no = my_dev;
+ if (request_irq(devc->irq, adintr, 0, devc->name,
+ (void *)(long)my_dev) < 0)
+ {
+ printk(KERN_WARNING "ad1848: Unable to allocate IRQ\n");
+ /* Don't free it either then.. */
+ devc->irq = 0;
+ }
+ if (capabilities[devc->model].flags & CAP_F_TIMER)
+ {
+#ifndef CONFIG_SMP
+ int x;
+ unsigned char tmp = ad_read(devc, 16);
+#endif
+
+ devc->timer_ticks = 0;
+
+ ad_write(devc, 21, 0x00); /* Timer MSB */
+ ad_write(devc, 20, 0x10); /* Timer LSB */
+#ifndef CONFIG_SMP
+ ad_write(devc, 16, tmp | 0x40); /* Enable timer */
+ for (x = 0; x < 100000 && devc->timer_ticks == 0; x++);
+ ad_write(devc, 16, tmp & ~0x40); /* Disable timer */
+
+ if (devc->timer_ticks == 0)
+ printk(KERN_WARNING "ad1848: Interrupt test failed (IRQ%d)\n", irq);
+ else
+ {
+ DDB(printk("Interrupt test OK\n"));
+ devc->irq_ok = 1;
+ }
+#else
+ devc->irq_ok = 1;
+#endif
+ }
+ else
+ devc->irq_ok = 1; /* Couldn't test. assume it's OK */
+ } else if (irq < 0)
+ irq2dev[-irq] = devc->dev_no = my_dev;
+
+#ifndef EXCLUDE_TIMERS
+ if ((capabilities[devc->model].flags & CAP_F_TIMER) &&
+ devc->irq_ok)
+ ad1848_tmr_install(my_dev);
+#endif
+
+ if (!share_dma)
+ {
+ if (sound_alloc_dma(dma_playback, devc->name))
+ printk(KERN_WARNING "ad1848.c: Can't allocate DMA%d\n", dma_playback);
+
+ if (dma_capture != dma_playback)
+ if (sound_alloc_dma(dma_capture, devc->name))
+ printk(KERN_WARNING "ad1848.c: Can't allocate DMA%d\n", dma_capture);
+ }
+
+ if ((e = sound_install_mixer(MIXER_DRIVER_VERSION,
+ dev_name,
+ &ad1848_mixer_operations,
+ sizeof(struct mixer_operations),
+ devc)) >= 0)
+ {
+ audio_devs[my_dev]->mixer_dev = e;
+ if (owner)
+ mixer_devs[e]->owner = owner;
+ }
+ return my_dev;
+}
+
+int ad1848_control(int cmd, int arg)
+{
+ ad1848_info *devc;
+ unsigned long flags;
+
+ if (nr_ad1848_devs < 1)
+ return -ENODEV;
+
+ devc = &adev_info[nr_ad1848_devs - 1];
+
+ switch (cmd)
+ {
+ case AD1848_SET_XTAL: /* Change clock frequency of AD1845 (only ) */
+ if (devc->model != MD_1845 && devc->model != MD_1845_SSCAPE)
+ return -EINVAL;
+ spin_lock_irqsave(&devc->lock,flags);
+ ad_enter_MCE(devc);
+ ad_write(devc, 29, (ad_read(devc, 29) & 0x1f) | (arg << 5));
+ ad_leave_MCE(devc);
+ spin_unlock_irqrestore(&devc->lock,flags);
+ break;
+
+ case AD1848_MIXER_REROUTE:
+ {
+ int o = (arg >> 8) & 0xff;
+ int n = arg & 0xff;
+
+ if (o < 0 || o >= SOUND_MIXER_NRDEVICES)
+ return -EINVAL;
+
+ if (!(devc->supported_devices & (1 << o)) &&
+ !(devc->supported_rec_devices & (1 << o)))
+ return -EINVAL;
+
+ if (n == SOUND_MIXER_NONE)
+ { /* Just hide this control */
+ ad1848_mixer_set(devc, o, 0); /* Shut up it */
+ devc->supported_devices &= ~(1 << o);
+ devc->supported_rec_devices &= ~(1 << o);
+ break;
+ }
+
+ /* Make the mixer control identified by o to appear as n */
+ if (n < 0 || n >= SOUND_MIXER_NRDEVICES)
+ return -EINVAL;
+
+ devc->mixer_reroute[n] = o; /* Rename the control */
+ if (devc->supported_devices & (1 << o))
+ devc->supported_devices |= (1 << n);
+ if (devc->supported_rec_devices & (1 << o))
+ devc->supported_rec_devices |= (1 << n);
+
+ devc->supported_devices &= ~(1 << o);
+ devc->supported_rec_devices &= ~(1 << o);
+ }
+ break;
+ }
+ return 0;
+}
+
+void ad1848_unload(int io_base, int irq, int dma_playback, int dma_capture, int share_dma)
+{
+ int i, mixer, dev = 0;
+ ad1848_info *devc = NULL;
+
+ for (i = 0; devc == NULL && i < nr_ad1848_devs; i++)
+ {
+ if (adev_info[i].base == io_base)
+ {
+ devc = &adev_info[i];
+ dev = devc->dev_no;
+ }
+ }
+
+ if (devc != NULL)
+ {
+ kfree(audio_devs[dev]->portc);
+ release_region(devc->base, 4);
+
+ if (!share_dma)
+ {
+ if (devc->irq > 0) /* There is no point in freeing irq, if it wasn't allocated */
+ free_irq(devc->irq, (void *)(long)devc->dev_no);
+
+ sound_free_dma(dma_playback);
+
+ if (dma_playback != dma_capture)
+ sound_free_dma(dma_capture);
+
+ }
+ mixer = audio_devs[devc->dev_no]->mixer_dev;
+ if(mixer>=0)
+ sound_unload_mixerdev(mixer);
+
+ nr_ad1848_devs--;
+ for ( ; i < nr_ad1848_devs ; i++)
+ adev_info[i] = adev_info[i+1];
+ }
+ else
+ printk(KERN_ERR "ad1848: Can't find device to be unloaded. Base=%x\n", io_base);
+}
+
+static irqreturn_t adintr(int irq, void *dev_id)
+{
+ unsigned char status;
+ ad1848_info *devc;
+ int dev;
+ int alt_stat = 0xff;
+ unsigned char c930_stat = 0;
+ int cnt = 0;
+
+ dev = (long)dev_id;
+ devc = (ad1848_info *) audio_devs[dev]->devc;
+
+interrupt_again: /* Jump back here if int status doesn't reset */
+
+ status = inb(io_Status(devc));
+
+ if (status == 0x80)
+ printk(KERN_DEBUG "adintr: Why?\n");
+ if (devc->model == MD_1848)
+ outb((0), io_Status(devc)); /* Clear interrupt status */
+
+ if (status & 0x01)
+ {
+ if (devc->model == MD_C930)
+ { /* 82C930 has interrupt status register in MAD16 register MC11 */
+
+ spin_lock(&devc->lock);
+
+ /* 0xe0e is C930 address port
+ * 0xe0f is C930 data port
+ */
+ outb(11, 0xe0e);
+ c930_stat = inb(0xe0f);
+ outb((~c930_stat), 0xe0f);
+
+ spin_unlock(&devc->lock);
+
+ alt_stat = (c930_stat << 2) & 0x30;
+ }
+ else if (devc->model != MD_1848)
+ {
+ spin_lock(&devc->lock);
+ alt_stat = ad_read(devc, 24);
+ ad_write(devc, 24, ad_read(devc, 24) & ~alt_stat); /* Selective ack */
+ spin_unlock(&devc->lock);
+ }
+
+ if ((devc->open_mode & OPEN_READ) && (devc->audio_mode & PCM_ENABLE_INPUT) && (alt_stat & 0x20))
+ {
+ DMAbuf_inputintr(devc->record_dev);
+ }
+ if ((devc->open_mode & OPEN_WRITE) && (devc->audio_mode & PCM_ENABLE_OUTPUT) &&
+ (alt_stat & 0x10))
+ {
+ DMAbuf_outputintr(devc->playback_dev, 1);
+ }
+ if (devc->model != MD_1848 && (alt_stat & 0x40)) /* Timer interrupt */
+ {
+ devc->timer_ticks++;
+#ifndef EXCLUDE_TIMERS
+ if (timer_installed == dev && devc->timer_running)
+ sound_timer_interrupt();
+#endif
+ }
+ }
+/*
+ * Sometimes playback or capture interrupts occur while a timer interrupt
+ * is being handled. The interrupt will not be retriggered if we don't
+ * handle it now. Check if an interrupt is still pending and restart
+ * the handler in this case.
+ */
+ if (inb(io_Status(devc)) & 0x01 && cnt++ < 4)
+ {
+ goto interrupt_again;
+ }
+ return IRQ_HANDLED;
+}
+
+/*
+ * Experimental initialization sequence for the integrated sound system
+ * of the Compaq Deskpro M.
+ */
+
+static int init_deskpro_m(struct address_info *hw_config)
+{
+ unsigned char tmp;
+
+ if ((tmp = inb(0xc44)) == 0xff)
+ {
+ DDB(printk("init_deskpro_m: Dead port 0xc44\n"));
+ return 0;
+ }
+
+ outb(0x10, 0xc44);
+ outb(0x40, 0xc45);
+ outb(0x00, 0xc46);
+ outb(0xe8, 0xc47);
+ outb(0x14, 0xc44);
+ outb(0x40, 0xc45);
+ outb(0x00, 0xc46);
+ outb(0xe8, 0xc47);
+ outb(0x10, 0xc44);
+
+ return 1;
+}
+
+/*
+ * Experimental initialization sequence for the integrated sound system
+ * of Compaq Deskpro XL.
+ */
+
+static int init_deskpro(struct address_info *hw_config)
+{
+ unsigned char tmp;
+
+ if ((tmp = inb(0xc44)) == 0xff)
+ {
+ DDB(printk("init_deskpro: Dead port 0xc44\n"));
+ return 0;
+ }
+ outb((tmp | 0x04), 0xc44); /* Select bank 1 */
+ if (inb(0xc44) != 0x04)
+ {
+ DDB(printk("init_deskpro: Invalid bank1 signature in port 0xc44\n"));
+ return 0;
+ }
+ /*
+ * OK. It looks like a Deskpro so let's proceed.
+ */
+
+ /*
+ * I/O port 0xc44 Audio configuration register.
+ *
+ * bits 0xc0: Audio revision bits
+ * 0x00 = Compaq Business Audio
+ * 0x40 = MS Sound System Compatible (reset default)
+ * 0x80 = Reserved
+ * 0xc0 = Reserved
+ * bit 0x20: No Wait State Enable
+ * 0x00 = Disabled (reset default, DMA mode)
+ * 0x20 = Enabled (programmed I/O mode)
+ * bit 0x10: MS Sound System Decode Enable
+ * 0x00 = Decoding disabled (reset default)
+ * 0x10 = Decoding enabled
+ * bit 0x08: FM Synthesis Decode Enable
+ * 0x00 = Decoding Disabled (reset default)
+ * 0x08 = Decoding enabled
+ * bit 0x04 Bank select
+ * 0x00 = Bank 0
+ * 0x04 = Bank 1
+ * bits 0x03 MSS Base address
+ * 0x00 = 0x530 (reset default)
+ * 0x01 = 0x604
+ * 0x02 = 0xf40
+ * 0x03 = 0xe80
+ */
+
+#ifdef DEBUGXL
+ /* Debug printing */
+ printk("Port 0xc44 (before): ");
+ outb((tmp & ~0x04), 0xc44);
+ printk("%02x ", inb(0xc44));
+ outb((tmp | 0x04), 0xc44);
+ printk("%02x\n", inb(0xc44));
+#endif
+
+ /* Set bank 1 of the register */
+ tmp = 0x58; /* MSS Mode, MSS&FM decode enabled */
+
+ switch (hw_config->io_base)
+ {
+ case 0x530:
+ tmp |= 0x00;
+ break;
+ case 0x604:
+ tmp |= 0x01;
+ break;
+ case 0xf40:
+ tmp |= 0x02;
+ break;
+ case 0xe80:
+ tmp |= 0x03;
+ break;
+ default:
+ DDB(printk("init_deskpro: Invalid MSS port %x\n", hw_config->io_base));
+ return 0;
+ }
+ outb((tmp & ~0x04), 0xc44); /* Write to bank=0 */
+
+#ifdef DEBUGXL
+ /* Debug printing */
+ printk("Port 0xc44 (after): ");
+ outb((tmp & ~0x04), 0xc44); /* Select bank=0 */
+ printk("%02x ", inb(0xc44));
+ outb((tmp | 0x04), 0xc44); /* Select bank=1 */
+ printk("%02x\n", inb(0xc44));
+#endif
+
+ /*
+ * I/O port 0xc45 FM Address Decode/MSS ID Register.
+ *
+ * bank=0, bits 0xfe: FM synthesis Decode Compare bits 7:1 (default=0x88)
+ * bank=0, bit 0x01: SBIC Power Control Bit
+ * 0x00 = Powered up
+ * 0x01 = Powered down
+ * bank=1, bits 0xfc: MSS ID (default=0x40)
+ */
+
+#ifdef DEBUGXL
+ /* Debug printing */
+ printk("Port 0xc45 (before): ");
+ outb((tmp & ~0x04), 0xc44); /* Select bank=0 */
+ printk("%02x ", inb(0xc45));
+ outb((tmp | 0x04), 0xc44); /* Select bank=1 */
+ printk("%02x\n", inb(0xc45));
+#endif
+
+ outb((tmp & ~0x04), 0xc44); /* Select bank=0 */
+ outb((0x88), 0xc45); /* FM base 7:0 = 0x88 */
+ outb((tmp | 0x04), 0xc44); /* Select bank=1 */
+ outb((0x10), 0xc45); /* MSS ID = 0x10 (MSS port returns 0x04) */
+
+#ifdef DEBUGXL
+ /* Debug printing */
+ printk("Port 0xc45 (after): ");
+ outb((tmp & ~0x04), 0xc44); /* Select bank=0 */
+ printk("%02x ", inb(0xc45));
+ outb((tmp | 0x04), 0xc44); /* Select bank=1 */
+ printk("%02x\n", inb(0xc45));
+#endif
+
+
+ /*
+ * I/O port 0xc46 FM Address Decode/Address ASIC Revision Register.
+ *
+ * bank=0, bits 0xff: FM synthesis Decode Compare bits 15:8 (default=0x03)
+ * bank=1, bits 0xff: Audio addressing ASIC id
+ */
+
+#ifdef DEBUGXL
+ /* Debug printing */
+ printk("Port 0xc46 (before): ");
+ outb((tmp & ~0x04), 0xc44); /* Select bank=0 */
+ printk("%02x ", inb(0xc46));
+ outb((tmp | 0x04), 0xc44); /* Select bank=1 */
+ printk("%02x\n", inb(0xc46));
+#endif
+
+ outb((tmp & ~0x04), 0xc44); /* Select bank=0 */
+ outb((0x03), 0xc46); /* FM base 15:8 = 0x03 */
+ outb((tmp | 0x04), 0xc44); /* Select bank=1 */
+ outb((0x11), 0xc46); /* ASIC ID = 0x11 */
+
+#ifdef DEBUGXL
+ /* Debug printing */
+ printk("Port 0xc46 (after): ");
+ outb((tmp & ~0x04), 0xc44); /* Select bank=0 */
+ printk("%02x ", inb(0xc46));
+ outb((tmp | 0x04), 0xc44); /* Select bank=1 */
+ printk("%02x\n", inb(0xc46));
+#endif
+
+ /*
+ * I/O port 0xc47 FM Address Decode Register.
+ *
+ * bank=0, bits 0xff: Decode enable selection for various FM address bits
+ * bank=1, bits 0xff: Reserved
+ */
+
+#ifdef DEBUGXL
+ /* Debug printing */
+ printk("Port 0xc47 (before): ");
+ outb((tmp & ~0x04), 0xc44); /* Select bank=0 */
+ printk("%02x ", inb(0xc47));
+ outb((tmp | 0x04), 0xc44); /* Select bank=1 */
+ printk("%02x\n", inb(0xc47));
+#endif
+
+ outb((tmp & ~0x04), 0xc44); /* Select bank=0 */
+ outb((0x7c), 0xc47); /* FM decode enable bits = 0x7c */
+ outb((tmp | 0x04), 0xc44); /* Select bank=1 */
+ outb((0x00), 0xc47); /* Reserved bank1 = 0x00 */
+
+#ifdef DEBUGXL
+ /* Debug printing */
+ printk("Port 0xc47 (after): ");
+ outb((tmp & ~0x04), 0xc44); /* Select bank=0 */
+ printk("%02x ", inb(0xc47));
+ outb((tmp | 0x04), 0xc44); /* Select bank=1 */
+ printk("%02x\n", inb(0xc47));
+#endif
+
+ /*
+ * I/O port 0xc6f = Audio Disable Function Register
+ */
+
+#ifdef DEBUGXL
+ printk("Port 0xc6f (before) = %02x\n", inb(0xc6f));
+#endif
+
+ outb((0x80), 0xc6f);
+
+#ifdef DEBUGXL
+ printk("Port 0xc6f (after) = %02x\n", inb(0xc6f));
+#endif
+
+ return 1;
+}
+
+int probe_ms_sound(struct address_info *hw_config, struct resource *ports)
+{
+ unsigned char tmp;
+
+ DDB(printk("Entered probe_ms_sound(%x, %d)\n", hw_config->io_base, hw_config->card_subtype));
+
+ if (hw_config->card_subtype == 1) /* Has no IRQ/DMA registers */
+ {
+ /* check_opl3(0x388, hw_config); */
+ return ad1848_detect(ports, NULL, hw_config->osp);
+ }
+
+ if (deskpro_xl && hw_config->card_subtype == 2) /* Compaq Deskpro XL */
+ {
+ if (!init_deskpro(hw_config))
+ return 0;
+ }
+
+ if (deskpro_m) /* Compaq Deskpro M */
+ {
+ if (!init_deskpro_m(hw_config))
+ return 0;
+ }
+
+ /*
+ * Check if the IO port returns valid signature. The original MS Sound
+ * system returns 0x04 while some cards (AudioTrix Pro for example)
+ * return 0x00 or 0x0f.
+ */
+
+ if ((tmp = inb(hw_config->io_base + 3)) == 0xff) /* Bus float */
+ {
+ int ret;
+
+ DDB(printk("I/O address is inactive (%x)\n", tmp));
+ if (!(ret = ad1848_detect(ports, NULL, hw_config->osp)))
+ return 0;
+ return 1;
+ }
+ DDB(printk("MSS signature = %x\n", tmp & 0x3f));
+ if ((tmp & 0x3f) != 0x04 &&
+ (tmp & 0x3f) != 0x0f &&
+ (tmp & 0x3f) != 0x00)
+ {
+ int ret;
+
+ MDB(printk(KERN_ERR "No MSS signature detected on port 0x%x (0x%x)\n", hw_config->io_base, (int) inb(hw_config->io_base + 3)));
+ DDB(printk("Trying to detect codec anyway but IRQ/DMA may not work\n"));
+ if (!(ret = ad1848_detect(ports, NULL, hw_config->osp)))
+ return 0;
+
+ hw_config->card_subtype = 1;
+ return 1;
+ }
+ if ((hw_config->irq != 5) &&
+ (hw_config->irq != 7) &&
+ (hw_config->irq != 9) &&
+ (hw_config->irq != 10) &&
+ (hw_config->irq != 11) &&
+ (hw_config->irq != 12))
+ {
+ printk(KERN_ERR "MSS: Bad IRQ %d\n", hw_config->irq);
+ return 0;
+ }
+ if (hw_config->dma != 0 && hw_config->dma != 1 && hw_config->dma != 3)
+ {
+ printk(KERN_ERR "MSS: Bad DMA %d\n", hw_config->dma);
+ return 0;
+ }
+ /*
+ * Check that DMA0 is not in use with a 8 bit board.
+ */
+
+ if (hw_config->dma == 0 && inb(hw_config->io_base + 3) & 0x80)
+ {
+ printk(KERN_ERR "MSS: Can't use DMA0 with a 8 bit card/slot\n");
+ return 0;
+ }
+ if (hw_config->irq > 7 && hw_config->irq != 9 && inb(hw_config->io_base + 3) & 0x80)
+ {
+ printk(KERN_ERR "MSS: Can't use IRQ%d with a 8 bit card/slot\n", hw_config->irq);
+ return 0;
+ }
+ return ad1848_detect(ports, NULL, hw_config->osp);
+}
+
+void attach_ms_sound(struct address_info *hw_config, struct resource *ports, struct module *owner)
+{
+ static signed char interrupt_bits[12] =
+ {
+ -1, -1, -1, -1, -1, 0x00, -1, 0x08, -1, 0x10, 0x18, 0x20
+ };
+ signed char bits;
+ char dma2_bit = 0;
+
+ static char dma_bits[4] =
+ {
+ 1, 2, 0, 3
+ };
+
+ int config_port = hw_config->io_base + 0;
+ int version_port = hw_config->io_base + 3;
+ int dma = hw_config->dma;
+ int dma2 = hw_config->dma2;
+
+ if (hw_config->card_subtype == 1) /* Has no IRQ/DMA registers */
+ {
+ hw_config->slots[0] = ad1848_init("MS Sound System", ports,
+ hw_config->irq,
+ hw_config->dma,
+ hw_config->dma2, 0,
+ hw_config->osp,
+ owner);
+ return;
+ }
+ /*
+ * Set the IRQ and DMA addresses.
+ */
+
+ bits = interrupt_bits[hw_config->irq];
+ if (bits == -1)
+ {
+ printk(KERN_ERR "MSS: Bad IRQ %d\n", hw_config->irq);
+ release_region(ports->start, 4);
+ release_region(ports->start - 4, 4);
+ return;
+ }
+ outb((bits | 0x40), config_port);
+ if ((inb(version_port) & 0x40) == 0)
+ printk(KERN_ERR "[MSS: IRQ Conflict?]\n");
+
+/*
+ * Handle the capture DMA channel
+ */
+
+ if (dma2 != -1 && dma2 != dma)
+ {
+ if (!((dma == 0 && dma2 == 1) ||
+ (dma == 1 && dma2 == 0) ||
+ (dma == 3 && dma2 == 0)))
+ { /* Unsupported combination. Try to swap channels */
+ int tmp = dma;
+
+ dma = dma2;
+ dma2 = tmp;
+ }
+ if ((dma == 0 && dma2 == 1) ||
+ (dma == 1 && dma2 == 0) ||
+ (dma == 3 && dma2 == 0))
+ {
+ dma2_bit = 0x04; /* Enable capture DMA */
+ }
+ else
+ {
+ printk(KERN_WARNING "MSS: Invalid capture DMA\n");
+ dma2 = dma;
+ }
+ }
+ else
+ {
+ dma2 = dma;
+ }
+
+ hw_config->dma = dma;
+ hw_config->dma2 = dma2;
+
+ outb((bits | dma_bits[dma] | dma2_bit), config_port); /* Write IRQ+DMA setup */
+
+ hw_config->slots[0] = ad1848_init("MS Sound System", ports,
+ hw_config->irq,
+ dma, dma2, 0,
+ hw_config->osp,
+ THIS_MODULE);
+}
+
+void unload_ms_sound(struct address_info *hw_config)
+{
+ ad1848_unload(hw_config->io_base + 4,
+ hw_config->irq,
+ hw_config->dma,
+ hw_config->dma2, 0);
+ sound_unload_audiodev(hw_config->slots[0]);
+ release_region(hw_config->io_base, 4);
+}
+
+#ifndef EXCLUDE_TIMERS
+
+/*
+ * Timer stuff (for /dev/music).
+ */
+
+static unsigned int current_interval;
+
+static unsigned int ad1848_tmr_start(int dev, unsigned int usecs)
+{
+ unsigned long flags;
+ ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
+ unsigned long xtal_nsecs; /* nanoseconds per xtal oscillator tick */
+ unsigned long divider;
+
+ spin_lock_irqsave(&devc->lock,flags);
+
+ /*
+ * Length of the timer interval (in nanoseconds) depends on the
+ * selected crystal oscillator. Check this from bit 0x01 of I8.
+ *
+ * AD1845 has just one oscillator which has cycle time of 10.050 us
+ * (when a 24.576 MHz xtal oscillator is used).
+ *
+ * Convert requested interval to nanoseconds before computing
+ * the timer divider.
+ */
+
+ if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE)
+ xtal_nsecs = 10050;
+ else if (ad_read(devc, 8) & 0x01)
+ xtal_nsecs = 9920;
+ else
+ xtal_nsecs = 9969;
+
+ divider = (usecs * 1000 + xtal_nsecs / 2) / xtal_nsecs;
+
+ if (divider < 100) /* Don't allow shorter intervals than about 1ms */
+ divider = 100;
+
+ if (divider > 65535) /* Overflow check */
+ divider = 65535;
+
+ ad_write(devc, 21, (divider >> 8) & 0xff); /* Set upper bits */
+ ad_write(devc, 20, divider & 0xff); /* Set lower bits */
+ ad_write(devc, 16, ad_read(devc, 16) | 0x40); /* Start the timer */
+ devc->timer_running = 1;
+ spin_unlock_irqrestore(&devc->lock,flags);
+
+ return current_interval = (divider * xtal_nsecs + 500) / 1000;
+}
+
+static void ad1848_tmr_reprogram(int dev)
+{
+ /*
+ * Audio driver has changed sampling rate so that a different xtal
+ * oscillator was selected. We have to reprogram the timer rate.
+ */
+
+ ad1848_tmr_start(dev, current_interval);
+ sound_timer_syncinterval(current_interval);
+}
+
+static void ad1848_tmr_disable(int dev)
+{
+ unsigned long flags;
+ ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
+
+ spin_lock_irqsave(&devc->lock,flags);
+ ad_write(devc, 16, ad_read(devc, 16) & ~0x40);
+ devc->timer_running = 0;
+ spin_unlock_irqrestore(&devc->lock,flags);
+}
+
+static void ad1848_tmr_restart(int dev)
+{
+ unsigned long flags;
+ ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
+
+ if (current_interval == 0)
+ return;
+
+ spin_lock_irqsave(&devc->lock,flags);
+ ad_write(devc, 16, ad_read(devc, 16) | 0x40);
+ devc->timer_running = 1;
+ spin_unlock_irqrestore(&devc->lock,flags);
+}
+
+static struct sound_lowlev_timer ad1848_tmr =
+{
+ 0,
+ 2,
+ ad1848_tmr_start,
+ ad1848_tmr_disable,
+ ad1848_tmr_restart
+};
+
+static int ad1848_tmr_install(int dev)
+{
+ if (timer_installed != -1)
+ return 0; /* Don't install another timer */
+
+ timer_installed = ad1848_tmr.dev = dev;
+ sound_timer_init(&ad1848_tmr, audio_devs[dev]->name);
+
+ return 1;
+}
+#endif /* EXCLUDE_TIMERS */
+
+EXPORT_SYMBOL(ad1848_detect);
+EXPORT_SYMBOL(ad1848_init);
+EXPORT_SYMBOL(ad1848_unload);
+EXPORT_SYMBOL(ad1848_control);
+EXPORT_SYMBOL(probe_ms_sound);
+EXPORT_SYMBOL(attach_ms_sound);
+EXPORT_SYMBOL(unload_ms_sound);
+
+static int __initdata io = -1;
+static int __initdata irq = -1;
+static int __initdata dma = -1;
+static int __initdata dma2 = -1;
+static int __initdata type = 0;
+
+module_param(io, int, 0); /* I/O for a raw AD1848 card */
+module_param(irq, int, 0); /* IRQ to use */
+module_param(dma, int, 0); /* First DMA channel */
+module_param(dma2, int, 0); /* Second DMA channel */
+module_param(type, int, 0); /* Card type */
+module_param(deskpro_xl, bool, 0); /* Special magic for Deskpro XL boxen */
+module_param(deskpro_m, bool, 0); /* Special magic for Deskpro M box */
+module_param(soundpro, bool, 0); /* More special magic for SoundPro chips */
+
+#ifdef CONFIG_PNP
+module_param(isapnp, int, 0);
+module_param(isapnpjump, int, 0);
+module_param(reverse, bool, 0);
+MODULE_PARM_DESC(isapnp, "When set to 0, Plug & Play support will be disabled");
+MODULE_PARM_DESC(isapnpjump, "Jumps to a specific slot in the driver's PnP table. Use the source, Luke.");
+MODULE_PARM_DESC(reverse, "When set to 1, will reverse ISAPnP search order");
+
+static struct pnp_dev *ad1848_dev = NULL;
+
+/* Please add new entries at the end of the table */
+static struct {
+ char *name;
+ unsigned short card_vendor, card_device,
+ vendor, function;
+ short mss_io, irq, dma, dma2; /* index into isapnp table */
+ int type;
+} ad1848_isapnp_list[] __initdata = {
+ {"CMI 8330 SoundPRO",
+ ISAPNP_VENDOR('C','M','I'), ISAPNP_DEVICE(0x0001),
+ ISAPNP_VENDOR('@','@','@'), ISAPNP_FUNCTION(0x0001),
+ 0, 0, 0,-1, 0},
+ {"CS4232 based card",
+ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
+ ISAPNP_VENDOR('C','S','C'), ISAPNP_FUNCTION(0x0000),
+ 0, 0, 0, 1, 0},
+ {"CS4232 based card",
+ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
+ ISAPNP_VENDOR('C','S','C'), ISAPNP_FUNCTION(0x0100),
+ 0, 0, 0, 1, 0},
+ {"OPL3-SA2 WSS mode",
+ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
+ ISAPNP_VENDOR('Y','M','H'), ISAPNP_FUNCTION(0x0021),
+ 1, 0, 0, 1, 1},
+ {"Advanced Gravis InterWave Audio",
+ ISAPNP_VENDOR('G','R','V'), ISAPNP_DEVICE(0x0001),
+ ISAPNP_VENDOR('G','R','V'), ISAPNP_FUNCTION(0x0000),
+ 0, 0, 0, 1, 0},
+ {NULL}
+};
+
+static struct isapnp_device_id id_table[] = {
+ { ISAPNP_VENDOR('C','M','I'), ISAPNP_DEVICE(0x0001),
+ ISAPNP_VENDOR('@','@','@'), ISAPNP_FUNCTION(0x0001), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
+ ISAPNP_VENDOR('C','S','C'), ISAPNP_FUNCTION(0x0000), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
+ ISAPNP_VENDOR('C','S','C'), ISAPNP_FUNCTION(0x0100), 0 },
+ /* The main driver for this card is opl3sa2
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
+ ISAPNP_VENDOR('Y','M','H'), ISAPNP_FUNCTION(0x0021), 0 },
+ */
+ { ISAPNP_VENDOR('G','R','V'), ISAPNP_DEVICE(0x0001),
+ ISAPNP_VENDOR('G','R','V'), ISAPNP_FUNCTION(0x0000), 0 },
+ {0}
+};
+
+MODULE_DEVICE_TABLE(isapnp, id_table);
+
+static struct pnp_dev *activate_dev(char *devname, char *resname, struct pnp_dev *dev)
+{
+ int err;
+
+ err = pnp_device_attach(dev);
+ if (err < 0)
+ return(NULL);
+
+ if((err = pnp_activate_dev(dev)) < 0) {
+ printk(KERN_ERR "ad1848: %s %s config failed (out of resources?)[%d]\n", devname, resname, err);
+
+ pnp_device_detach(dev);
+
+ return(NULL);
+ }
+ audio_activated = 1;
+ return(dev);
+}
+
+static struct pnp_dev __init *ad1848_init_generic(struct pnp_card *bus,
+ struct address_info *hw_config, int slot)
+{
+
+ /* Configure Audio device */
+ if((ad1848_dev = pnp_find_dev(bus, ad1848_isapnp_list[slot].vendor, ad1848_isapnp_list[slot].function, NULL)))
+ {
+ if((ad1848_dev = activate_dev(ad1848_isapnp_list[slot].name, "ad1848", ad1848_dev)))
+ {
+ hw_config->io_base = pnp_port_start(ad1848_dev, ad1848_isapnp_list[slot].mss_io);
+ hw_config->irq = pnp_irq(ad1848_dev, ad1848_isapnp_list[slot].irq);
+ hw_config->dma = pnp_dma(ad1848_dev, ad1848_isapnp_list[slot].dma);
+ if(ad1848_isapnp_list[slot].dma2 != -1)
+ hw_config->dma2 = pnp_dma(ad1848_dev, ad1848_isapnp_list[slot].dma2);
+ else
+ hw_config->dma2 = -1;
+ hw_config->card_subtype = ad1848_isapnp_list[slot].type;
+ } else
+ return(NULL);
+ } else
+ return(NULL);
+
+ return(ad1848_dev);
+}
+
+static int __init ad1848_isapnp_init(struct address_info *hw_config, struct pnp_card *bus, int slot)
+{
+ char *busname = bus->name[0] ? bus->name : ad1848_isapnp_list[slot].name;
+
+ /* Initialize this baby. */
+
+ if(ad1848_init_generic(bus, hw_config, slot)) {
+ /* We got it. */
+
+ printk(KERN_NOTICE "ad1848: PnP reports '%s' at i/o %#x, irq %d, dma %d, %d\n",
+ busname,
+ hw_config->io_base, hw_config->irq, hw_config->dma,
+ hw_config->dma2);
+ return 1;
+ }
+ return 0;
+}
+
+static int __init ad1848_isapnp_probe(struct address_info *hw_config)
+{
+ static int first = 1;
+ int i;
+
+ /* Count entries in sb_isapnp_list */
+ for (i = 0; ad1848_isapnp_list[i].card_vendor != 0; i++);
+ i--;
+
+ /* Check and adjust isapnpjump */
+ if( isapnpjump < 0 || isapnpjump > i) {
+ isapnpjump = reverse ? i : 0;
+ printk(KERN_ERR "ad1848: Valid range for isapnpjump is 0-%d. Adjusted to %d.\n", i, isapnpjump);
+ }
+
+ if(!first || !reverse)
+ i = isapnpjump;
+ first = 0;
+ while(ad1848_isapnp_list[i].card_vendor != 0) {
+ static struct pnp_card *bus = NULL;
+
+ while ((bus = pnp_find_card(
+ ad1848_isapnp_list[i].card_vendor,
+ ad1848_isapnp_list[i].card_device,
+ bus))) {
+
+ if(ad1848_isapnp_init(hw_config, bus, i)) {
+ isapnpjump = i; /* start next search from here */
+ return 0;
+ }
+ }
+ i += reverse ? -1 : 1;
+ }
+
+ return -ENODEV;
+}
+#endif
+
+
+static int __init init_ad1848(void)
+{
+ printk(KERN_INFO "ad1848/cs4248 codec driver Copyright (C) by Hannu Savolainen 1993-1996\n");
+
+#ifdef CONFIG_PNP
+ if(isapnp && (ad1848_isapnp_probe(&cfg) < 0) ) {
+ printk(KERN_NOTICE "ad1848: No ISAPnP cards found, trying standard ones...\n");
+ isapnp = 0;
+ }
+#endif
+
+ if(io != -1) {
+ struct resource *ports;
+ if( isapnp == 0 )
+ {
+ if(irq == -1 || dma == -1) {
+ printk(KERN_WARNING "ad1848: must give I/O , IRQ and DMA.\n");
+ return -EINVAL;
+ }
+
+ cfg.irq = irq;
+ cfg.io_base = io;
+ cfg.dma = dma;
+ cfg.dma2 = dma2;
+ cfg.card_subtype = type;
+ }
+
+ ports = request_region(io + 4, 4, "ad1848");
+
+ if (!ports)
+ return -EBUSY;
+
+ if (!request_region(io, 4, "WSS config")) {
+ release_region(io + 4, 4);
+ return -EBUSY;
+ }
+
+ if (!probe_ms_sound(&cfg, ports)) {
+ release_region(io + 4, 4);
+ release_region(io, 4);
+ return -ENODEV;
+ }
+ attach_ms_sound(&cfg, ports, THIS_MODULE);
+ loaded = 1;
+ }
+ return 0;
+}
+
+static void __exit cleanup_ad1848(void)
+{
+ if(loaded)
+ unload_ms_sound(&cfg);
+
+#ifdef CONFIG_PNP
+ if(ad1848_dev){
+ if(audio_activated)
+ pnp_device_detach(ad1848_dev);
+ }
+#endif
+}
+
+module_init(init_ad1848);
+module_exit(cleanup_ad1848);
+
+#ifndef MODULE
+static int __init setup_ad1848(char *str)
+{
+ /* io, irq, dma, dma2, type */
+ int ints[6];
+
+ str = get_options(str, ARRAY_SIZE(ints), ints);
+
+ io = ints[1];
+ irq = ints[2];
+ dma = ints[3];
+ dma2 = ints[4];
+ type = ints[5];
+
+ return 1;
+}
+
+__setup("ad1848=", setup_ad1848);
+#endif
+MODULE_LICENSE("GPL");
Code Review / kvmfornfv.git / blobdiff