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linux-next/sound/oss/pss.c
Markus Elfring d1f45e6037 sound: oss: Deletion of unnecessary checks before the function call "vfree" 
The vfree() function performs also input parameter validation. Thus the test
around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-04 15:11:56 +01:00

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/*
* sound/oss/pss.c
*
* The low level driver for the Personal Sound System (ECHO ESC614).
*
*
* 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)
* Alan Cox modularisation, clean up.
*
* 98-02-21: Vladimir Michl <vladimir.michl@upol.cz>
* Added mixer device for Beethoven ADSP-16 (master volume,
* bass, treble, synth), only for speakers.
* Fixed bug in pss_write (exchange parameters)
* Fixed config port of SB
* Requested two regions for PSS (PSS mixer, PSS config)
* Modified pss_download_boot
* To probe_pss_mss added test for initialize AD1848
* 98-05-28: Vladimir Michl <vladimir.michl@upol.cz>
* Fixed computation of mixer volumes
* 04-05-1999: Anthony Barbachan <barbcode@xmen.cis.fordham.edu>
* Added code that allows the user to enable his cdrom and/or
* joystick through the module parameters pss_cdrom_port and
* pss_enable_joystick. pss_cdrom_port takes a port address as its
* argument. pss_enable_joystick takes either a 0 or a non-0 as its
* argument.
* 04-06-1999: Anthony Barbachan <barbcode@xmen.cis.fordham.edu>
* Separated some code into new functions for easier reuse.
* Cleaned up and streamlined new code. Added code to allow a user
* to only use this driver for enabling non-sound components
* through the new module parameter pss_no_sound (flag). Added
* code that would allow a user to decide whether the driver should
* reset the configured hardware settings for the PSS board through
* the module parameter pss_keep_settings (flag). This flag will
* allow a user to free up resources in use by this card if needbe,
* furthermore it allows him to use this driver to just enable the
* emulations and then be unloaded as it is no longer needed. Both
* new settings are only available to this driver if compiled as a
* module. The default settings of all new parameters are set to
* load the driver as it did in previous versions.
* 04-07-1999: Anthony Barbachan <barbcode@xmen.cis.fordham.edu>
* Added module parameter pss_firmware to allow the user to tell
* the driver where the firmware file is located. The default
* setting is the previous hardcoded setting "/etc/sound/pss_synth".
* 00-03-03: Christoph Hellwig <chhellwig@infradead.org>
* Adapted to module_init/module_exit
* 11-10-2000: Bartlomiej Zolnierkiewicz <bkz@linux-ide.org>
* Added __init to probe_pss(), attach_pss() and probe_pss_mpu()
* 02-Jan-2001: Chris Rankin
* Specify that this module owns the coprocessor
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/spinlock.h>
#include "sound_config.h"
#include "sound_firmware.h"
#include "ad1848.h"
#include "mpu401.h"
/*
* PSS registers.
*/
#define REG(x) (devc->base+x)
#define PSS_DATA 0
#define PSS_STATUS 2
#define PSS_CONTROL 2
#define PSS_ID 4
#define PSS_IRQACK 4
#define PSS_PIO 0x1a
/*
* Config registers
*/
#define CONF_PSS 0x10
#define CONF_WSS 0x12
#define CONF_SB 0x14
#define CONF_CDROM 0x16
#define CONF_MIDI 0x18
/*
* Status bits.
*/
#define PSS_FLAG3 0x0800
#define PSS_FLAG2 0x0400
#define PSS_FLAG1 0x1000
#define PSS_FLAG0 0x0800
#define PSS_WRITE_EMPTY 0x8000
#define PSS_READ_FULL 0x4000
/*
* WSS registers
*/
#define WSS_INDEX 4
#define WSS_DATA 5
/*
* WSS status bits
*/
#define WSS_INITIALIZING 0x80
#define WSS_AUTOCALIBRATION 0x20
#define NO_WSS_MIXER -1
#include "coproc.h"
#include "pss_boot.h"
/* If compiled into kernel, it enable or disable pss mixer */
#ifdef CONFIG_PSS_MIXER
static bool pss_mixer = 1;
#else
static bool pss_mixer;
#endif
struct pss_mixerdata {
unsigned int volume_l;
unsigned int volume_r;
unsigned int bass;
unsigned int treble;
unsigned int synth;
};
struct pss_confdata {
int base;
int irq;
int dma;
int *osp;
struct pss_mixerdata mixer;
int ad_mixer_dev;
};
static struct pss_confdata pss_data;
static struct pss_confdata *devc = &pss_data;
static DEFINE_SPINLOCK(lock);
static int pss_initialized;
static int nonstandard_microcode;
static int pss_cdrom_port = -1; /* Parameter for the PSS cdrom port */
static bool pss_enable_joystick; /* Parameter for enabling the joystick */
static coproc_operations pss_coproc_operations;
static void pss_write(struct pss_confdata *devc, int data)
{
unsigned long i, limit;
limit = jiffies + HZ/10; /* The timeout is 0.1 seconds */
/*
* Note! the i<5000000 is an emergency exit. The dsp_command() is sometimes
* called while interrupts are disabled. This means that the timer is
* disabled also. However the timeout situation is a abnormal condition.
* Normally the DSP should be ready to accept commands after just couple of
* loops.
*/
for (i = 0; i < 5000000 && time_before(jiffies, limit); i++)
{
if (inw(REG(PSS_STATUS)) & PSS_WRITE_EMPTY)
{
outw(data, REG(PSS_DATA));
return;
}
}
printk(KERN_WARNING "PSS: DSP Command (%04x) Timeout.\n", data);
}
static int __init probe_pss(struct address_info *hw_config)
{
unsigned short id;
int irq, dma;
devc->base = hw_config->io_base;
irq = devc->irq = hw_config->irq;
dma = devc->dma = hw_config->dma;
devc->osp = hw_config->osp;
if (devc->base != 0x220 && devc->base != 0x240)
if (devc->base != 0x230 && devc->base != 0x250) /* Some cards use these */
return 0;
if (!request_region(devc->base, 0x10, "PSS mixer, SB emulation")) {
printk(KERN_ERR "PSS: I/O port conflict\n");
return 0;
}
id = inw(REG(PSS_ID));
if ((id >> 8) != 'E') {
printk(KERN_ERR "No PSS signature detected at 0x%x (0x%x)\n", devc->base, id);
release_region(devc->base, 0x10);
return 0;
}
if (!request_region(devc->base + 0x10, 0x9, "PSS config")) {
printk(KERN_ERR "PSS: I/O port conflict\n");
release_region(devc->base, 0x10);
return 0;
}
return 1;
}
static int set_irq(struct pss_confdata *devc, int dev, int irq)
{
static unsigned short irq_bits[16] =
{
0x0000, 0x0000, 0x0000, 0x0008,
0x0000, 0x0010, 0x0000, 0x0018,
0x0000, 0x0020, 0x0028, 0x0030,
0x0038, 0x0000, 0x0000, 0x0000
};
unsigned short tmp, bits;
if (irq < 0 || irq > 15)
return 0;
tmp = inw(REG(dev)) & ~0x38; /* Load confreg, mask IRQ bits out */
if ((bits = irq_bits[irq]) == 0 && irq != 0)
{
printk(KERN_ERR "PSS: Invalid IRQ %d\n", irq);
return 0;
}
outw(tmp | bits, REG(dev));
return 1;
}
static void set_io_base(struct pss_confdata *devc, int dev, int base)
{
unsigned short tmp = inw(REG(dev)) & 0x003f;
unsigned short bits = (base & 0x0ffc) << 4;
outw(bits | tmp, REG(dev));
}
static int set_dma(struct pss_confdata *devc, int dev, int dma)
{
static unsigned short dma_bits[8] =
{
0x0001, 0x0002, 0x0000, 0x0003,
0x0000, 0x0005, 0x0006, 0x0007
};
unsigned short tmp, bits;
if (dma < 0 || dma > 7)
return 0;
tmp = inw(REG(dev)) & ~0x07; /* Load confreg, mask DMA bits out */
if ((bits = dma_bits[dma]) == 0 && dma != 4)
{
printk(KERN_ERR "PSS: Invalid DMA %d\n", dma);
return 0;
}
outw(tmp | bits, REG(dev));
return 1;
}
static int pss_reset_dsp(struct pss_confdata *devc)
{
unsigned long i, limit = jiffies + HZ/10;
outw(0x2000, REG(PSS_CONTROL));
for (i = 0; i < 32768 && time_after_eq(limit, jiffies); i++)
inw(REG(PSS_CONTROL));
outw(0x0000, REG(PSS_CONTROL));
return 1;
}
static int pss_put_dspword(struct pss_confdata *devc, unsigned short word)
{
int i, val;
for (i = 0; i < 327680; i++)
{
val = inw(REG(PSS_STATUS));
if (val & PSS_WRITE_EMPTY)
{
outw(word, REG(PSS_DATA));
return 1;
}
}
return 0;
}
static int pss_get_dspword(struct pss_confdata *devc, unsigned short *word)
{
int i, val;
for (i = 0; i < 327680; i++)
{
val = inw(REG(PSS_STATUS));
if (val & PSS_READ_FULL)
{
*word = inw(REG(PSS_DATA));
return 1;
}
}
return 0;
}
static int pss_download_boot(struct pss_confdata *devc, unsigned char *block,
int size, int flags)
{
int i, val, count;
unsigned long limit;
if (flags & CPF_FIRST)
{
/*_____ Warn DSP software that a boot is coming */
outw(0x00fe, REG(PSS_DATA));
limit = jiffies + HZ/10;
for (i = 0; i < 32768 && time_before(jiffies, limit); i++)
if (inw(REG(PSS_DATA)) == 0x5500)
break;
outw(*block++, REG(PSS_DATA));
pss_reset_dsp(devc);
}
count = 1;
while ((flags&CPF_LAST) || count<size )
{
int j;
for (j = 0; j < 327670; j++)
{
/*_____ Wait for BG to appear */
if (inw(REG(PSS_STATUS)) & PSS_FLAG3)
break;
}
if (j == 327670)
{
/* It's ok we timed out when the file was empty */
if (count >= size && flags & CPF_LAST)
break;
else
{
printk("\n");
printk(KERN_ERR "PSS: Download timeout problems, byte %d=%d\n", count, size);
return 0;
}
}
/*_____ Send the next byte */
if (count >= size)
{
/* If not data in block send 0xffff */
outw (0xffff, REG (PSS_DATA));
}
else
{
/*_____ Send the next byte */
outw (*block++, REG (PSS_DATA));
}
count++;
}
if (flags & CPF_LAST)
{
/*_____ Why */
outw(0, REG(PSS_DATA));
limit = jiffies + HZ/10;
for (i = 0; i < 32768 && time_after_eq(limit, jiffies); i++)
val = inw(REG(PSS_STATUS));
limit = jiffies + HZ/10;
for (i = 0; i < 32768 && time_after_eq(limit, jiffies); i++)
{
val = inw(REG(PSS_STATUS));
if (val & 0x4000)
break;
}
/* now read the version */
for (i = 0; i < 32000; i++)
{
val = inw(REG(PSS_STATUS));
if (val & PSS_READ_FULL)
break;
}
if (i == 32000)
return 0;
val = inw(REG(PSS_DATA));
/* printk( "<PSS: microcode version %d.%d loaded>", val/16, val % 16); */
}
return 1;
}
/* Mixer */
static void set_master_volume(struct pss_confdata *devc, int left, int right)
{
static unsigned char log_scale[101] = {
0xdb, 0xe0, 0xe3, 0xe5, 0xe7, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xed, 0xee,
0xef, 0xef, 0xf0, 0xf0, 0xf1, 0xf1, 0xf2, 0xf2, 0xf2, 0xf3, 0xf3, 0xf3,
0xf4, 0xf4, 0xf4, 0xf5, 0xf5, 0xf5, 0xf5, 0xf6, 0xf6, 0xf6, 0xf6, 0xf7,
0xf7, 0xf7, 0xf7, 0xf7, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf9, 0xf9, 0xf9,
0xf9, 0xf9, 0xf9, 0xfa, 0xfa, 0xfa, 0xfa, 0xfa, 0xfa, 0xfa, 0xfb, 0xfb,
0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
0xfc, 0xfc, 0xfc, 0xfc, 0xfd, 0xfd, 0xfd, 0xfd, 0xfd, 0xfd, 0xfd, 0xfd,
0xfd, 0xfd, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe,
0xfe, 0xfe, 0xff, 0xff, 0xff
};
pss_write(devc, 0x0010);
pss_write(devc, log_scale[left] | 0x0000);
pss_write(devc, 0x0010);
pss_write(devc, log_scale[right] | 0x0100);
}
static void set_synth_volume(struct pss_confdata *devc, int volume)
{
int vol = ((0x8000*volume)/100L);
pss_write(devc, 0x0080);
pss_write(devc, vol);
pss_write(devc, 0x0081);
pss_write(devc, vol);
}
static void set_bass(struct pss_confdata *devc, int level)
{
int vol = (int)(((0xfd - 0xf0) * level)/100L) + 0xf0;
pss_write(devc, 0x0010);
pss_write(devc, vol | 0x0200);
};
static void set_treble(struct pss_confdata *devc, int level)
{
int vol = (((0xfd - 0xf0) * level)/100L) + 0xf0;
pss_write(devc, 0x0010);
pss_write(devc, vol | 0x0300);
};
static void pss_mixer_reset(struct pss_confdata *devc)
{
set_master_volume(devc, 33, 33);
set_bass(devc, 50);
set_treble(devc, 50);
set_synth_volume(devc, 30);
pss_write (devc, 0x0010);
pss_write (devc, 0x0800 | 0xce); /* Stereo */
if(pss_mixer)
{
devc->mixer.volume_l = devc->mixer.volume_r = 33;
devc->mixer.bass = 50;
devc->mixer.treble = 50;
devc->mixer.synth = 30;
}
}
static int set_volume_mono(unsigned __user *p, unsigned int *aleft)
{
unsigned int left, volume;
if (get_user(volume, p))
return -EFAULT;
left = volume & 0xff;
if (left > 100)
left = 100;
*aleft = left;
return 0;
}
static int set_volume_stereo(unsigned __user *p,
unsigned int *aleft,
unsigned int *aright)
{
unsigned int left, right, volume;
if (get_user(volume, p))
return -EFAULT;
left = volume & 0xff;
if (left > 100)
left = 100;
right = (volume >> 8) & 0xff;
if (right > 100)
right = 100;
*aleft = left;
*aright = right;
return 0;
}
static int ret_vol_mono(int left)
{
return ((left << 8) | left);
}
static int ret_vol_stereo(int left, int right)
{
return ((right << 8) | left);
}
static int call_ad_mixer(struct pss_confdata *devc, unsigned int cmd,
void __user *arg)
{
if (devc->ad_mixer_dev != NO_WSS_MIXER)
return mixer_devs[devc->ad_mixer_dev]->ioctl(devc->ad_mixer_dev, cmd, arg);
else
return -EINVAL;
}
static int pss_mixer_ioctl (int dev, unsigned int cmd, void __user *arg)
{
struct pss_confdata *devc = mixer_devs[dev]->devc;
int cmdf = cmd & 0xff;
if ((cmdf != SOUND_MIXER_VOLUME) && (cmdf != SOUND_MIXER_BASS) &&
(cmdf != SOUND_MIXER_TREBLE) && (cmdf != SOUND_MIXER_SYNTH) &&
(cmdf != SOUND_MIXER_DEVMASK) && (cmdf != SOUND_MIXER_STEREODEVS) &&
(cmdf != SOUND_MIXER_RECMASK) && (cmdf != SOUND_MIXER_CAPS) &&
(cmdf != SOUND_MIXER_RECSRC))
{
return call_ad_mixer(devc, cmd, arg);
}
if (((cmd >> 8) & 0xff) != 'M')
return -EINVAL;
if (_SIOC_DIR (cmd) & _SIOC_WRITE)
{
switch (cmdf)
{
case SOUND_MIXER_RECSRC:
if (devc->ad_mixer_dev != NO_WSS_MIXER)
return call_ad_mixer(devc, cmd, arg);
else
{
int v;
if (get_user(v, (int __user *)arg))
return -EFAULT;
if (v != 0)
return -EINVAL;
return 0;
}
case SOUND_MIXER_VOLUME:
if (set_volume_stereo(arg,
&devc->mixer.volume_l,
&devc->mixer.volume_r))
return -EFAULT;
set_master_volume(devc, devc->mixer.volume_l,
devc->mixer.volume_r);
return ret_vol_stereo(devc->mixer.volume_l,
devc->mixer.volume_r);
case SOUND_MIXER_BASS:
if (set_volume_mono(arg, &devc->mixer.bass))
return -EFAULT;
set_bass(devc, devc->mixer.bass);
return ret_vol_mono(devc->mixer.bass);
case SOUND_MIXER_TREBLE:
if (set_volume_mono(arg, &devc->mixer.treble))
return -EFAULT;
set_treble(devc, devc->mixer.treble);
return ret_vol_mono(devc->mixer.treble);
case SOUND_MIXER_SYNTH:
if (set_volume_mono(arg, &devc->mixer.synth))
return -EFAULT;
set_synth_volume(devc, devc->mixer.synth);
return ret_vol_mono(devc->mixer.synth);
default:
return -EINVAL;
}
}
else
{
int val, and_mask = 0, or_mask = 0;
/*
* Return parameters
*/
switch (cmdf)
{
case SOUND_MIXER_DEVMASK:
if (call_ad_mixer(devc, cmd, arg) == -EINVAL)
break;
and_mask = ~0;
or_mask = SOUND_MASK_VOLUME | SOUND_MASK_BASS | SOUND_MASK_TREBLE | SOUND_MASK_SYNTH;
break;
case SOUND_MIXER_STEREODEVS:
if (call_ad_mixer(devc, cmd, arg) == -EINVAL)
break;
and_mask = ~0;
or_mask = SOUND_MASK_VOLUME;
break;
case SOUND_MIXER_RECMASK:
if (devc->ad_mixer_dev != NO_WSS_MIXER)
return call_ad_mixer(devc, cmd, arg);
break;
case SOUND_MIXER_CAPS:
if (devc->ad_mixer_dev != NO_WSS_MIXER)
return call_ad_mixer(devc, cmd, arg);
or_mask = SOUND_CAP_EXCL_INPUT;
break;
case SOUND_MIXER_RECSRC:
if (devc->ad_mixer_dev != NO_WSS_MIXER)
return call_ad_mixer(devc, cmd, arg);
break;
case SOUND_MIXER_VOLUME:
or_mask = ret_vol_stereo(devc->mixer.volume_l, devc->mixer.volume_r);
break;
case SOUND_MIXER_BASS:
or_mask = ret_vol_mono(devc->mixer.bass);
break;
case SOUND_MIXER_TREBLE:
or_mask = ret_vol_mono(devc->mixer.treble);
break;
case SOUND_MIXER_SYNTH:
or_mask = ret_vol_mono(devc->mixer.synth);
break;
default:
return -EINVAL;
}
if (get_user(val, (int __user *)arg))
return -EFAULT;
val &= and_mask;
val |= or_mask;
if (put_user(val, (int __user *)arg))
return -EFAULT;
return val;
}
}
static struct mixer_operations pss_mixer_operations =
{
.owner = THIS_MODULE,
.id = "SOUNDPORT",
.name = "PSS-AD1848",
.ioctl = pss_mixer_ioctl
};
static void disable_all_emulations(void)
{
outw(0x0000, REG(CONF_PSS)); /* 0x0400 enables joystick */
outw(0x0000, REG(CONF_WSS));
outw(0x0000, REG(CONF_SB));
outw(0x0000, REG(CONF_MIDI));
outw(0x0000, REG(CONF_CDROM));
}
static void configure_nonsound_components(void)
{
/* Configure Joystick port */
if(pss_enable_joystick)
{
outw(0x0400, REG(CONF_PSS)); /* 0x0400 enables joystick */
printk(KERN_INFO "PSS: joystick enabled.\n");
}
else
{
printk(KERN_INFO "PSS: joystick port not enabled.\n");
}
/* Configure CDROM port */
if (pss_cdrom_port == -1) { /* If cdrom port enablation wasn't requested */
printk(KERN_INFO "PSS: CDROM port not enabled.\n");
} else if (!request_region(pss_cdrom_port, 2, "PSS CDROM")) {
pss_cdrom_port = -1;
printk(KERN_ERR "PSS: CDROM I/O port conflict.\n");
} else {
set_io_base(devc, CONF_CDROM, pss_cdrom_port);
printk(KERN_INFO "PSS: CDROM I/O port set to 0x%x.\n", pss_cdrom_port);
}
}
static int __init attach_pss(struct address_info *hw_config)
{
unsigned short id;
char tmp[100];
devc->base = hw_config->io_base;
devc->irq = hw_config->irq;
devc->dma = hw_config->dma;
devc->osp = hw_config->osp;
devc->ad_mixer_dev = NO_WSS_MIXER;
if (!probe_pss(hw_config))
return 0;
id = inw(REG(PSS_ID)) & 0x00ff;
/*
* Disable all emulations. Will be enabled later (if required).
*/
disable_all_emulations();
#ifdef YOU_REALLY_WANT_TO_ALLOCATE_THESE_RESOURCES
if (sound_alloc_dma(hw_config->dma, "PSS"))
{
printk("pss.c: Can't allocate DMA channel.\n");
release_region(hw_config->io_base, 0x10);
release_region(hw_config->io_base+0x10, 0x9);
return 0;
}
if (!set_irq(devc, CONF_PSS, devc->irq))
{
printk("PSS: IRQ allocation error.\n");
release_region(hw_config->io_base, 0x10);
release_region(hw_config->io_base+0x10, 0x9);
return 0;
}
if (!set_dma(devc, CONF_PSS, devc->dma))
{
printk(KERN_ERR "PSS: DMA allocation error\n");
release_region(hw_config->io_base, 0x10);
release_region(hw_config->io_base+0x10, 0x9);
return 0;
}
#endif
configure_nonsound_components();
pss_initialized = 1;
sprintf(tmp, "ECHO-PSS Rev. %d", id);
conf_printf(tmp, hw_config);
return 1;
}
static int __init probe_pss_mpu(struct address_info *hw_config)
{
struct resource *ports;
int timeout;
if (!pss_initialized)
return 0;
ports = request_region(hw_config->io_base, 2, "mpu401");
if (!ports) {
printk(KERN_ERR "PSS: MPU I/O port conflict\n");
return 0;
}
set_io_base(devc, CONF_MIDI, hw_config->io_base);
if (!set_irq(devc, CONF_MIDI, hw_config->irq)) {
printk(KERN_ERR "PSS: MIDI IRQ allocation error.\n");
goto fail;
}
if (!pss_synthLen) {
printk(KERN_ERR "PSS: Can't enable MPU. MIDI synth microcode not available.\n");
goto fail;
}
if (!pss_download_boot(devc, pss_synth, pss_synthLen, CPF_FIRST | CPF_LAST)) {
printk(KERN_ERR "PSS: Unable to load MIDI synth microcode to DSP.\n");
goto fail;
}
/*
* Finally wait until the DSP algorithm has initialized itself and
* deactivates receive interrupt.
*/
for (timeout = 900000; timeout > 0; timeout--)
{
if ((inb(hw_config->io_base + 1) & 0x80) == 0) /* Input data avail */
inb(hw_config->io_base); /* Discard it */
else
break; /* No more input */
}
if (!probe_mpu401(hw_config, ports))
goto fail;
attach_mpu401(hw_config, THIS_MODULE); /* Slot 1 */
if (hw_config->slots[1] != -1) /* The MPU driver installed itself */
midi_devs[hw_config->slots[1]]->coproc = &pss_coproc_operations;
return 1;
fail:
release_region(hw_config->io_base, 2);
return 0;
}
static int pss_coproc_open(void *dev_info, int sub_device)
{
switch (sub_device)
{
case COPR_MIDI:
if (pss_synthLen == 0)
{
printk(KERN_ERR "PSS: MIDI synth microcode not available.\n");
return -EIO;
}
if (nonstandard_microcode)
if (!pss_download_boot(devc, pss_synth, pss_synthLen, CPF_FIRST | CPF_LAST))
{
printk(KERN_ERR "PSS: Unable to load MIDI synth microcode to DSP.\n");
return -EIO;
}
nonstandard_microcode = 0;
break;
default:
break;
}
return 0;
}
static void pss_coproc_close(void *dev_info, int sub_device)
{
return;
}
static void pss_coproc_reset(void *dev_info)
{
if (pss_synthLen)
if (!pss_download_boot(devc, pss_synth, pss_synthLen, CPF_FIRST | CPF_LAST))
{
printk(KERN_ERR "PSS: Unable to load MIDI synth microcode to DSP.\n");
}
nonstandard_microcode = 0;
}
static int download_boot_block(void *dev_info, copr_buffer * buf)
{
if (buf->len <= 0 || buf->len > sizeof(buf->data))
return -EINVAL;
if (!pss_download_boot(devc, buf->data, buf->len, buf->flags))
{
printk(KERN_ERR "PSS: Unable to load microcode block to DSP.\n");
return -EIO;
}
nonstandard_microcode = 1; /* The MIDI microcode has been overwritten */
return 0;
}
static int pss_coproc_ioctl(void *dev_info, unsigned int cmd, void __user *arg, int local)
{
copr_buffer *buf;
copr_msg *mbuf;
copr_debug_buf dbuf;
unsigned short tmp;
unsigned long flags;
unsigned short *data;
int i, err;
/* printk( "PSS coproc ioctl %x %x %d\n", cmd, arg, local); */
switch (cmd)
{
case SNDCTL_COPR_RESET:
pss_coproc_reset(dev_info);
return 0;
case SNDCTL_COPR_LOAD:
buf = vmalloc(sizeof(copr_buffer));
if (buf == NULL)
return -ENOSPC;
if (copy_from_user(buf, arg, sizeof(copr_buffer))) {
vfree(buf);
return -EFAULT;
}
err = download_boot_block(dev_info, buf);
vfree(buf);
return err;
case SNDCTL_COPR_SENDMSG:
mbuf = vmalloc(sizeof(copr_msg));
if (mbuf == NULL)
return -ENOSPC;
if (copy_from_user(mbuf, arg, sizeof(copr_msg))) {
vfree(mbuf);
return -EFAULT;
}
data = (unsigned short *)(mbuf->data);
spin_lock_irqsave(&lock, flags);
for (i = 0; i < mbuf->len; i++) {
if (!pss_put_dspword(devc, *data++)) {
spin_unlock_irqrestore(&lock,flags);
mbuf->len = i; /* feed back number of WORDs sent */
err = copy_to_user(arg, mbuf, sizeof(copr_msg));
vfree(mbuf);
return err ? -EFAULT : -EIO;
}
}
spin_unlock_irqrestore(&lock,flags);
vfree(mbuf);
return 0;
case SNDCTL_COPR_RCVMSG:
err = 0;
mbuf = vmalloc(sizeof(copr_msg));
if (mbuf == NULL)
return -ENOSPC;
data = (unsigned short *)mbuf->data;
spin_lock_irqsave(&lock, flags);
for (i = 0; i < sizeof(mbuf->data)/sizeof(unsigned short); i++) {
mbuf->len = i; /* feed back number of WORDs read */
if (!pss_get_dspword(devc, data++)) {
if (i == 0)
err = -EIO;
break;
}
}
spin_unlock_irqrestore(&lock,flags);
if (copy_to_user(arg, mbuf, sizeof(copr_msg)))
err = -EFAULT;
vfree(mbuf);
return err;
case SNDCTL_COPR_RDATA:
if (copy_from_user(&dbuf, arg, sizeof(dbuf)))
return -EFAULT;
spin_lock_irqsave(&lock, flags);
if (!pss_put_dspword(devc, 0x00d0)) {
spin_unlock_irqrestore(&lock,flags);
return -EIO;
}
if (!pss_put_dspword(devc, (unsigned short)(dbuf.parm1 & 0xffff))) {
spin_unlock_irqrestore(&lock,flags);
return -EIO;
}
if (!pss_get_dspword(devc, &tmp)) {
spin_unlock_irqrestore(&lock,flags);
return -EIO;
}
dbuf.parm1 = tmp;
spin_unlock_irqrestore(&lock,flags);
if (copy_to_user(arg, &dbuf, sizeof(dbuf)))
return -EFAULT;
return 0;
case SNDCTL_COPR_WDATA:
if (copy_from_user(&dbuf, arg, sizeof(dbuf)))
return -EFAULT;
spin_lock_irqsave(&lock, flags);
if (!pss_put_dspword(devc, 0x00d1)) {
spin_unlock_irqrestore(&lock,flags);
return -EIO;
}
if (!pss_put_dspword(devc, (unsigned short) (dbuf.parm1 & 0xffff))) {
spin_unlock_irqrestore(&lock,flags);
return -EIO;
}
tmp = (unsigned int)dbuf.parm2 & 0xffff;
if (!pss_put_dspword(devc, tmp)) {
spin_unlock_irqrestore(&lock,flags);
return -EIO;
}
spin_unlock_irqrestore(&lock,flags);
return 0;
case SNDCTL_COPR_WCODE:
if (copy_from_user(&dbuf, arg, sizeof(dbuf)))
return -EFAULT;
spin_lock_irqsave(&lock, flags);
if (!pss_put_dspword(devc, 0x00d3)) {
spin_unlock_irqrestore(&lock,flags);
return -EIO;
}
if (!pss_put_dspword(devc, (unsigned short)(dbuf.parm1 & 0xffff))) {
spin_unlock_irqrestore(&lock,flags);
return -EIO;
}
tmp = (unsigned int)dbuf.parm2 & 0x00ff;
if (!pss_put_dspword(devc, tmp)) {
spin_unlock_irqrestore(&lock,flags);
return -EIO;
}
tmp = ((unsigned int)dbuf.parm2 >> 8) & 0xffff;
if (!pss_put_dspword(devc, tmp)) {
spin_unlock_irqrestore(&lock,flags);
return -EIO;
}
spin_unlock_irqrestore(&lock,flags);
return 0;
case SNDCTL_COPR_RCODE:
if (copy_from_user(&dbuf, arg, sizeof(dbuf)))
return -EFAULT;
spin_lock_irqsave(&lock, flags);
if (!pss_put_dspword(devc, 0x00d2)) {
spin_unlock_irqrestore(&lock,flags);
return -EIO;
}
if (!pss_put_dspword(devc, (unsigned short)(dbuf.parm1 & 0xffff))) {
spin_unlock_irqrestore(&lock,flags);
return -EIO;
}
if (!pss_get_dspword(devc, &tmp)) { /* Read MSB */
spin_unlock_irqrestore(&lock,flags);
return -EIO;
}
dbuf.parm1 = tmp << 8;
if (!pss_get_dspword(devc, &tmp)) { /* Read LSB */
spin_unlock_irqrestore(&lock,flags);
return -EIO;
}
dbuf.parm1 |= tmp & 0x00ff;
spin_unlock_irqrestore(&lock,flags);
if (copy_to_user(arg, &dbuf, sizeof(dbuf)))
return -EFAULT;
return 0;
default:
return -EINVAL;
}
return -EINVAL;
}
static coproc_operations pss_coproc_operations =
{
"ADSP-2115",
THIS_MODULE,
pss_coproc_open,
pss_coproc_close,
pss_coproc_ioctl,
pss_coproc_reset,
&pss_data
};
static int __init probe_pss_mss(struct address_info *hw_config)
{
volatile int timeout;
struct resource *ports;
int my_mix = -999; /* gcc shut up */
if (!pss_initialized)
return 0;
if (!request_region(hw_config->io_base, 4, "WSS config")) {
printk(KERN_ERR "PSS: WSS I/O port conflicts.\n");
return 0;
}
ports = request_region(hw_config->io_base + 4, 4, "ad1848");
if (!ports) {
printk(KERN_ERR "PSS: WSS I/O port conflicts.\n");
release_region(hw_config->io_base, 4);
return 0;
}
set_io_base(devc, CONF_WSS, hw_config->io_base);
if (!set_irq(devc, CONF_WSS, hw_config->irq)) {
printk("PSS: WSS IRQ allocation error.\n");
goto fail;
}
if (!set_dma(devc, CONF_WSS, hw_config->dma)) {
printk(KERN_ERR "PSS: WSS DMA allocation error\n");
goto fail;
}
/*
* For some reason the card returns 0xff in the WSS status register
* immediately after boot. Probably MIDI+SB emulation algorithm
* downloaded to the ADSP2115 spends some time initializing the card.
* Let's try to wait until it finishes this task.
*/
for (timeout = 0; timeout < 100000 && (inb(hw_config->io_base + WSS_INDEX) &
WSS_INITIALIZING); timeout++)
;
outb((0x0b), hw_config->io_base + WSS_INDEX); /* Required by some cards */
for (timeout = 0; (inb(hw_config->io_base + WSS_DATA) & WSS_AUTOCALIBRATION) &&
(timeout < 100000); timeout++)
;
if (!probe_ms_sound(hw_config, ports))
goto fail;
devc->ad_mixer_dev = NO_WSS_MIXER;
if (pss_mixer)
{
if ((my_mix = sound_install_mixer (MIXER_DRIVER_VERSION,
"PSS-SPEAKERS and AD1848 (through MSS audio codec)",
&pss_mixer_operations,
sizeof (struct mixer_operations),
devc)) < 0)
{
printk(KERN_ERR "Could not install PSS mixer\n");
goto fail;
}
}
pss_mixer_reset(devc);
attach_ms_sound(hw_config, ports, THIS_MODULE); /* Slot 0 */
if (hw_config->slots[0] != -1)
{
/* The MSS driver installed itself */
audio_devs[hw_config->slots[0]]->coproc = &pss_coproc_operations;
if (pss_mixer && (num_mixers == (my_mix + 2)))
{
/* The MSS mixer installed */
devc->ad_mixer_dev = audio_devs[hw_config->slots[0]]->mixer_dev;
}
}
return 1;
fail:
release_region(hw_config->io_base + 4, 4);
release_region(hw_config->io_base, 4);
return 0;
}
static inline void __exit unload_pss(struct address_info *hw_config)
{
release_region(hw_config->io_base, 0x10);
release_region(hw_config->io_base+0x10, 0x9);
}
static inline void __exit unload_pss_mpu(struct address_info *hw_config)
{
unload_mpu401(hw_config);
}
static inline void __exit unload_pss_mss(struct address_info *hw_config)
{
unload_ms_sound(hw_config);
}
static struct address_info cfg;
static struct address_info cfg2;
static struct address_info cfg_mpu;
static int pss_io __initdata = -1;
static int mss_io __initdata = -1;
static int mss_irq __initdata = -1;
static int mss_dma __initdata = -1;
static int mpu_io __initdata = -1;
static int mpu_irq __initdata = -1;
static bool pss_no_sound = 0; /* Just configure non-sound components */
static bool pss_keep_settings = 1; /* Keep hardware settings at module exit */
static char *pss_firmware = "/etc/sound/pss_synth";
module_param(pss_io, int, 0);
MODULE_PARM_DESC(pss_io, "Set i/o base of PSS card (probably 0x220 or 0x240)");
module_param(mss_io, int, 0);
MODULE_PARM_DESC(mss_io, "Set WSS (audio) i/o base (0x530, 0x604, 0xE80, 0xF40, or other. Address must end in 0 or 4 and must be from 0x100 to 0xFF4)");
module_param(mss_irq, int, 0);
MODULE_PARM_DESC(mss_irq, "Set WSS (audio) IRQ (3, 5, 7, 9, 10, 11, 12)");
module_param(mss_dma, int, 0);
MODULE_PARM_DESC(mss_dma, "Set WSS (audio) DMA (0, 1, 3)");
module_param(mpu_io, int, 0);
MODULE_PARM_DESC(mpu_io, "Set MIDI i/o base (0x330 or other. Address must be on 4 location boundaries and must be from 0x100 to 0xFFC)");
module_param(mpu_irq, int, 0);
MODULE_PARM_DESC(mpu_irq, "Set MIDI IRQ (3, 5, 7, 9, 10, 11, 12)");
module_param(pss_cdrom_port, int, 0);
MODULE_PARM_DESC(pss_cdrom_port, "Set the PSS CDROM port i/o base (0x340 or other)");
module_param(pss_enable_joystick, bool, 0);
MODULE_PARM_DESC(pss_enable_joystick, "Enables the PSS joystick port (1 to enable, 0 to disable)");
module_param(pss_no_sound, bool, 0);
MODULE_PARM_DESC(pss_no_sound, "Configure sound compoents (0 - no, 1 - yes)");
module_param(pss_keep_settings, bool, 0);
MODULE_PARM_DESC(pss_keep_settings, "Keep hardware setting at driver unloading (0 - no, 1 - yes)");
module_param(pss_firmware, charp, 0);
MODULE_PARM_DESC(pss_firmware, "Location of the firmware file (default - /etc/sound/pss_synth)");
module_param(pss_mixer, bool, 0);
MODULE_PARM_DESC(pss_mixer, "Enable (1) or disable (0) PSS mixer (controlling of output volume, bass, treble, synth volume). The mixer is not available on all PSS cards.");
MODULE_AUTHOR("Hannu Savolainen, Vladimir Michl");
MODULE_DESCRIPTION("Module for PSS sound cards (based on AD1848, ADSP-2115 and ESC614). This module includes control of output amplifier and synth volume of the Beethoven ADSP-16 card (this may work with other PSS cards).");
MODULE_LICENSE("GPL");
static int fw_load = 0;
static int pssmpu = 0, pssmss = 0;
/*
* Load a PSS sound card module
*/
static int __init init_pss(void)
{
if(pss_no_sound) /* If configuring only nonsound components */
{
cfg.io_base = pss_io;
if(!probe_pss(&cfg))
return -ENODEV;
printk(KERN_INFO "ECHO-PSS Rev. %d\n", inw(REG(PSS_ID)) & 0x00ff);
printk(KERN_INFO "PSS: loading in no sound mode.\n");
disable_all_emulations();
configure_nonsound_components();
release_region(pss_io, 0x10);
release_region(pss_io + 0x10, 0x9);
return 0;
}
cfg.io_base = pss_io;
cfg2.io_base = mss_io;
cfg2.irq = mss_irq;
cfg2.dma = mss_dma;
cfg_mpu.io_base = mpu_io;
cfg_mpu.irq = mpu_irq;
if (cfg.io_base == -1 || cfg2.io_base == -1 || cfg2.irq == -1 || cfg.dma == -1) {
printk(KERN_INFO "pss: mss_io, mss_dma, mss_irq and pss_io must be set.\n");
return -EINVAL;
}
if (!pss_synth) {
fw_load = 1;
pss_synthLen = mod_firmware_load(pss_firmware, (void *) &pss_synth);
}
if (!attach_pss(&cfg))
return -ENODEV;
/*
* Attach stuff
*/
if (probe_pss_mpu(&cfg_mpu))
pssmpu = 1;
if (probe_pss_mss(&cfg2))
pssmss = 1;
return 0;
}
static void __exit cleanup_pss(void)
{
if(!pss_no_sound)
{
if (fw_load)
vfree(pss_synth);
if(pssmss)
unload_pss_mss(&cfg2);
if(pssmpu)
unload_pss_mpu(&cfg_mpu);
unload_pss(&cfg);
} else if (pss_cdrom_port != -1)
release_region(pss_cdrom_port, 2);
if(!pss_keep_settings) /* Keep hardware settings if asked */
{
disable_all_emulations();
printk(KERN_INFO "Resetting PSS sound card configurations.\n");
}
}
module_init(init_pss);
module_exit(cleanup_pss);
#ifndef MODULE
static int __init setup_pss(char *str)
{
/* io, mss_io, mss_irq, mss_dma, mpu_io, mpu_irq */
int ints[7];
str = get_options(str, ARRAY_SIZE(ints), ints);
pss_io = ints[1];
mss_io = ints[2];
mss_irq = ints[3];
mss_dma = ints[4];
mpu_io = ints[5];
mpu_irq = ints[6];
return 1;
}
__setup("pss=", setup_pss);
#endif
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