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WSL2-Linux-Kernel
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staging/easycap: remove oss support 

remove support for OSS. OSS is being deprecated
and it is just plain headache to support both alsa and oss.

Last I broke the compilation when OSS is enabled with the patch
cdaa898b5e
staging/easycap: kill telltale logic

so this fixes also that issue.

Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Tomas Winkler 2011-07-07 20:45:46 +03:00 коммит произвёл Greg Kroah-Hartman
Родитель 808a3b5f9b
Коммит 73019286cd
7 изменённых файлов: 4 добавлений и 1100 удалений
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32
drivers/staging/easycap/Kconfig
Просмотреть файл

@ -1,6 +1,7 @@
config EASYCAP
tristate "EasyCAP USB ID 05e1:0408 support"
depends on USB && VIDEO_DEV && (SND || SOUND_OSS_CORE)
depends on USB && VIDEO_DEV && SND
select SND_PCM
---help---
This is an integrated audio/video driver for EasyCAP cards with
@ -15,35 +16,6 @@ config EASYCAP
To compile this driver as a module, choose M here: the
module will be called easycap
choice
prompt "Sound Interface"
depends on EASYCAP
default EASYCAP_SND
---help---
config EASYCAP_SND
bool "ALSA"
depends on SND
select SND_PCM
---help---
Say 'Y' if you want to use ALSA interface
This will disable Open Sound System (OSS) binding.
config EASYCAP_OSS
bool "OSS (DEPRECATED)"
depends on SOUND_OSS_CORE
---help---
Say 'Y' if you prefer Open Sound System (OSS) interface
This will disable Advanced Linux Sound Architecture (ALSA) binding.
Once binding to ALSA interface will be stable this option will be
removed.
endchoice
config EASYCAP_DEBUG
bool "Enable EasyCAP driver debugging"
depends on EASYCAP

4
drivers/staging/easycap/Makefile
Просмотреть файл

@ -4,9 +4,7 @@ easycap-objs += easycap_ioctl.o
easycap-objs += easycap_settings.o
easycap-objs += easycap_testcard.o
easycap-objs += easycap_sound.o
easycap-$(CONFIG_EASYCAP_OSS) += easycap_sound_oss.o
obj-$(CONFIG_EASYCAP) += easycap.o
obj-$(CONFIG_EASYCAP) += easycap.o
ccflags-y := -Wall

35
drivers/staging/easycap/easycap.h
Просмотреть файл

@ -69,7 +69,6 @@
#include <linux/delay.h>
#include <linux/types.h>
#ifndef CONFIG_EASYCAP_OSS
#include <linux/vmalloc.h>
#include <linux/sound.h>
#include <sound/core.h>
@ -78,7 +77,6 @@
#include <sound/info.h>
#include <sound/initval.h>
#include <sound/control.h>
#endif /* !CONFIG_EASYCAP_OSS */
#include <media/v4l2-dev.h>
#include <media/v4l2-device.h>
#include <linux/videodev2.h>
@ -413,7 +411,6 @@ struct easycap {
* ALSA
*/
/*---------------------------------------------------------------------------*/
#ifndef CONFIG_EASYCAP_OSS
struct snd_pcm_hardware alsa_hardware;
struct snd_card *psnd_card;
struct snd_pcm *psnd_pcm;
@ -421,7 +418,6 @@ struct easycap {
int dma_fill;
int dma_next;
int dma_read;
#endif /* !CONFIG_EASYCAP_OSS */
/*---------------------------------------------------------------------------*/
/*
* SOUND PROPERTIES
@ -503,12 +499,8 @@ int adjust_volume(struct easycap *, int);
* AUDIO FUNCTION PROTOTYPES
*/
/*---------------------------------------------------------------------------*/
#ifndef CONFIG_EASYCAP_OSS
int easycap_alsa_probe(struct easycap *);
void easycap_alsa_complete(struct urb *);
#else /* CONFIG_EASYCAP_OSS */
void easyoss_complete(struct urb *);
#endif /* !CONFIG_EASYCAP_OSS */
int easycap_sound_setup(struct easycap *);
int submit_audio_urbs(struct easycap *);
@ -596,30 +588,6 @@ extern int easycap_debug;
#define JOM(n, format, args...) do {} while (0)
#endif /* CONFIG_EASYCAP_DEBUG */
/*---------------------------------------------------------------------------*/
/*
* (unsigned char *)P pointer to next byte pair
* (long int *)X pointer to accumulating count
* (long int *)Y pointer to accumulating sum
* (long long int *)Z pointer to accumulating sum of squares
*/
/*---------------------------------------------------------------------------*/
#define SUMMER(P, X, Y, Z) do { \
unsigned char *p; \
unsigned int u0, u1, u2; \
long int s; \
p = (unsigned char *)(P); \
u0 = (unsigned int) (*p); \
u1 = (unsigned int) (*(p + 1)); \
u2 = (unsigned int) ((u1 << 8) | u0); \
if (0x8000 & u2) \
s = -(long int)(0x7FFF & (~u2)); \
else \
s = (long int)(0x7FFF & u2); \
*((X)) += (long int) 1; \
*((Y)) += (long int) s; \
*((Z)) += ((long long int)(s) * (long long int)(s)); \
} while (0)
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
@ -633,8 +601,5 @@ extern struct easycap_format easycap_format[];
extern struct v4l2_queryctrl easycap_control[];
extern struct usb_driver easycap_usb_driver;
extern struct easycap_dongle easycapdc60_dongle[];
#ifdef CONFIG_EASYCAP_OSS
extern struct usb_class_driver easyoss_class;
#endif /* !CONFIG_EASYCAP_OSS */
#endif /* !__EASYCAP_H__ */

6
drivers/staging/easycap/easycap_ioctl.c
Просмотреть файл

@ -2347,14 +2347,8 @@ long easycap_unlocked_ioctl(struct file *file,
/*---------------------------------------------------------------------------*/
JOM(8, "calling wake_up on wq_video and wq_audio\n");
wake_up_interruptible(&(peasycap->wq_video));
#ifdef CONFIG_EASYCAP_OSS
wake_up_interruptible(&(peasycap->wq_audio));
#else
if (peasycap->psubstream)
snd_pcm_period_elapsed(peasycap->psubstream);
#endif /* CONFIG_EASYCAP_OSS */
/*---------------------------------------------------------------------------*/
break;
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */

67
drivers/staging/easycap/easycap_main.c
Просмотреть файл

@ -876,20 +876,6 @@ static void easycap_delete(struct kref *pkref)
}
JOM(4, "easyoss_delete(): isoc audio buffers freed: %i pages\n",
m * (0x01 << AUDIO_ISOC_ORDER));
/*---------------------------------------------------------------------------*/
#ifdef CONFIG_EASYCAP_OSS
JOM(4, "freeing audio buffers.\n");
gone = 0;
for (k = 0; k < peasycap->audio_buffer_page_many; k++) {
if (peasycap->audio_buffer[k].pgo) {
free_page((unsigned long)peasycap->audio_buffer[k].pgo);
peasycap->audio_buffer[k].pgo = NULL;
peasycap->allocation_audio_page -= 1;
gone++;
}
}
JOM(4, "easyoss_delete(): audio buffers freed: %i pages\n", gone);
#endif /* CONFIG_EASYCAP_OSS */
/*---------------------------------------------------------------------------*/
JOM(4, "freeing easycap structure.\n");
allocation_video_urb = peasycap->allocation_video_urb;
@ -3894,32 +3880,6 @@ static int easycap_usb_probe(struct usb_interface *intf,
INIT_LIST_HEAD(&(peasycap->urb_audio_head));
peasycap->purb_audio_head = &(peasycap->urb_audio_head);
#ifdef CONFIG_EASYCAP_OSS
JOM(4, "allocating an audio buffer\n");
JOM(4, ".... scattered over %i pages\n",
peasycap->audio_buffer_page_many);
for (k = 0; k < peasycap->audio_buffer_page_many; k++) {
if (peasycap->audio_buffer[k].pgo) {
SAM("ERROR: attempting to reallocate audio buffers\n");
} else {
pbuf = (void *) __get_free_page(GFP_KERNEL);
if (!pbuf) {
SAM("ERROR: Could not allocate audio "
"buffer page %i\n", k);
return -ENOMEM;
} else
peasycap->allocation_audio_page += 1;
peasycap->audio_buffer[k].pgo = pbuf;
}
peasycap->audio_buffer[k].pto = peasycap->audio_buffer[k].pgo;
}
peasycap->audio_fill = 0;
peasycap->audio_read = 0;
JOM(4, "allocation of audio buffer done: %i pages\n", k);
#endif /* CONFIG_EASYCAP_OSS */
/*---------------------------------------------------------------------------*/
JOM(4, "allocating %i isoc audio buffers of size %i\n",
AUDIO_ISOC_BUFFER_MANY,
@ -3996,11 +3956,7 @@ static int easycap_usb_probe(struct usb_interface *intf,
"peasycap->audio_isoc_buffer[.].pgo;\n");
JOM(4, " purb->transfer_buffer_length = %i;\n",
peasycap->audio_isoc_buffer_size);
#ifdef CONFIG_EASYCAP_OSS
JOM(4, " purb->complete = easyoss_complete;\n");
#else /* CONFIG_EASYCAP_OSS */
JOM(4, " purb->complete = easycap_alsa_complete;\n");
#endif /* CONFIG_EASYCAP_OSS */
JOM(4, " purb->context = peasycap;\n");
JOM(4, " purb->start_frame = 0;\n");
JOM(4, " purb->number_of_packets = %i;\n",
@ -4023,11 +3979,7 @@ static int easycap_usb_probe(struct usb_interface *intf,
purb->transfer_buffer = peasycap->audio_isoc_buffer[k].pgo;
purb->transfer_buffer_length =
peasycap->audio_isoc_buffer_size;
#ifdef CONFIG_EASYCAP_OSS
purb->complete = easyoss_complete;
#else /* CONFIG_EASYCAP_OSS */
purb->complete = easycap_alsa_complete;
#endif /* CONFIG_EASYCAP_OSS */
purb->context = peasycap;
purb->start_frame = 0;
purb->number_of_packets = peasycap->audio_isoc_framesperdesc;
@ -4050,7 +4002,6 @@ static int easycap_usb_probe(struct usb_interface *intf,
* THE AUDIO DEVICE CAN BE REGISTERED NOW, AS IT IS READY.
*/
/*---------------------------------------------------------------------------*/
#ifndef CONFIG_EASYCAP_OSS
JOM(4, "initializing ALSA card\n");
rc = easycap_alsa_probe(peasycap);
@ -4059,15 +4010,6 @@ static int easycap_usb_probe(struct usb_interface *intf,
return -ENODEV;
}
#else /* CONFIG_EASYCAP_OSS */
rc = usb_register_dev(intf, &easyoss_class);
if (rc) {
SAY("ERROR: usb_register_dev() failed\n");
usb_set_intfdata(intf, NULL);
return -ENODEV;
}
SAM("easyoss attached to minor #%d\n", intf->minor);
#endif /* CONFIG_EASYCAP_OSS */
JOM(8, "kref_get() with %i=kref.refcount.counter\n",
peasycap->kref.refcount.counter);
@ -4093,7 +4035,7 @@ static int easycap_usb_probe(struct usb_interface *intf,
* WHEN THIS FUNCTION IS CALLED THE EasyCAP HAS ALREADY BEEN PHYSICALLY
* UNPLUGGED. HENCE peasycap->pusb_device IS NO LONGER VALID.
*
* THIS FUNCTION AFFECTS BOTH OSS AND ALSA. BEWARE.
* THIS FUNCTION AFFECTS ALSA. BEWARE.
*/
/*---------------------------------------------------------------------------*/
static void easycap_usb_disconnect(struct usb_interface *pusb_interface)
@ -4244,19 +4186,12 @@ static void easycap_usb_disconnect(struct usb_interface *pusb_interface)
JOM(4, "locked dongle[%i].mutex_audio\n", kd);
} else
SAY("ERROR: %i=kd is bad: cannot lock dongle\n", kd);
#ifndef CONFIG_EASYCAP_OSS
if (0 != snd_card_free(peasycap->psnd_card)) {
SAY("ERROR: snd_card_free() failed\n");
} else {
peasycap->psnd_card = NULL;
(peasycap->registered_audio)--;
}
#else /* CONFIG_EASYCAP_OSS */
usb_deregister_dev(pusb_interface, &easyoss_class);
peasycap->registered_audio--;
JOM(4, "intf[%i]: usb_deregister_dev()\n", bInterfaceNumber);
SAM("easyoss detached from minor #%d\n", minor);
#endif /* CONFIG_EASYCAP_OSS */
if (0 <= kd && DONGLE_MANY > kd) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
JOM(4, "unlocked dongle[%i].mutex_audio\n", kd);

6
drivers/staging/easycap/easycap_sound.c
Просмотреть файл

@ -30,7 +30,6 @@
#include "easycap.h"
#ifndef CONFIG_EASYCAP_OSS
/*--------------------------------------------------------------------------*/
/*
* PARAMETERS USED WHEN REGISTERING THE AUDIO INTERFACE
@ -615,7 +614,6 @@ int easycap_alsa_probe(struct easycap *peasycap)
SAM("registered %s\n", &psnd_card->id[0]);
return 0;
}
#endif /*! CONFIG_EASYCAP_OSS */
/*****************************************************************************/
/*****************************************************************************/
@ -733,11 +731,7 @@ submit_audio_urbs(struct easycap *peasycap)
purb->transfer_flags = URB_ISO_ASAP;
purb->transfer_buffer = peasycap->audio_isoc_buffer[isbuf].pgo;
purb->transfer_buffer_length = peasycap->audio_isoc_buffer_size;
#ifdef CONFIG_EASYCAP_OSS
purb->complete = easyoss_complete;
#else /* CONFIG_EASYCAP_OSS */
purb->complete = easycap_alsa_complete;
#endif /* CONFIG_EASYCAP_OSS */
purb->context = peasycap;
purb->start_frame = 0;
purb->number_of_packets = peasycap->audio_isoc_framesperdesc;

954
drivers/staging/easycap/easycap_sound_oss.c
Просмотреть файл

@ -1,954 +0,0 @@
/******************************************************************************
* *
* easycap_sound.c *
* *
* Audio driver for EasyCAP USB2.0 Video Capture Device DC60 *
* *
* *
******************************************************************************/
/*
*
* Copyright (C) 2010 R.M. Thomas <rmthomas@sciolus.org>
*
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* The software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/*****************************************************************************/
#include "easycap.h"
/*****************************************************************************/
/**************************** **************************/
/**************************** Open Sound System **************************/
/**************************** **************************/
/*****************************************************************************/
/*--------------------------------------------------------------------------*/
/*
* PARAMETERS USED WHEN REGISTERING THE AUDIO INTERFACE
*/
/*--------------------------------------------------------------------------*/
/*****************************************************************************/
/*---------------------------------------------------------------------------*/
/*
* ON COMPLETION OF AN AUDIO URB ITS DATA IS COPIED TO THE AUDIO BUFFERS
* PROVIDED peasycap->audio_idle IS ZERO. REGARDLESS OF THIS BEING TRUE,
* IT IS RESUBMITTED PROVIDED peasycap->audio_isoc_streaming IS NOT ZERO.
*/
/*---------------------------------------------------------------------------*/
void
easyoss_complete(struct urb *purb)
{
struct easycap *peasycap;
struct data_buffer *paudio_buffer;
u8 *p1, *p2;
s16 tmp;
int i, j, more, much, leap, rc;
#ifdef UPSAMPLE
int k;
s16 oldaudio, newaudio, delta;
#endif /*UPSAMPLE*/
JOT(16, "\n");
if (!purb) {
SAY("ERROR: purb is NULL\n");
return;
}
peasycap = purb->context;
if (!peasycap) {
SAY("ERROR: peasycap is NULL\n");
return;
}
if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
SAY("ERROR: bad peasycap\n");
return;
}
much = 0;
if (peasycap->audio_idle) {
JOM(16, "%i=audio_idle %i=audio_isoc_streaming\n",
peasycap->audio_idle, peasycap->audio_isoc_streaming);
if (peasycap->audio_isoc_streaming) {
rc = usb_submit_urb(purb, GFP_ATOMIC);
if (rc) {
if (-ENODEV != rc && -ENOENT != rc) {
SAM("ERROR: while %i=audio_idle, "
"usb_submit_urb() failed with rc: -%s: %d\n",
peasycap->audio_idle,
strerror(rc), rc);
}
}
}
return;
}
/*---------------------------------------------------------------------------*/
if (purb->status) {
if ((-ESHUTDOWN == purb->status) || (-ENOENT == purb->status)) {
JOM(16, "urb status -ESHUTDOWN or -ENOENT\n");
return;
}
SAM("ERROR: non-zero urb status: -%s: %d\n",
strerror(purb->status), purb->status);
goto resubmit;
}
/*---------------------------------------------------------------------------*/
/*
* PROCEED HERE WHEN NO ERROR
*/
/*---------------------------------------------------------------------------*/
#ifdef UPSAMPLE
oldaudio = peasycap->oldaudio;
#endif /*UPSAMPLE*/
for (i = 0; i < purb->number_of_packets; i++) {
if (!purb->iso_frame_desc[i].status) {
SAM("-%s\n", strerror(purb->iso_frame_desc[i].status));
more = purb->iso_frame_desc[i].actual_length;
if (!more)
peasycap->audio_mt++;
else {
if (peasycap->audio_mt) {
JOM(12, "%4i empty audio urb frames\n",
peasycap->audio_mt);
peasycap->audio_mt = 0;
}
p1 = (u8 *)(purb->transfer_buffer + purb->iso_frame_desc[i].offset);
leap = 0;
p1 += leap;
more -= leap;
/*
* COPY more BYTES FROM ISOC BUFFER
* TO AUDIO BUFFER, CONVERTING
* 8-BIT MONO TO 16-BIT SIGNED
* LITTLE-ENDIAN SAMPLES IF NECESSARY
*/
while (more) {
if (0 > more) {
SAM("MISTAKE: more is negative\n");
return;
}
if (peasycap->audio_buffer_page_many <= peasycap->audio_fill) {
SAM("ERROR: bad peasycap->audio_fill\n");
return;
}
paudio_buffer = &peasycap->audio_buffer[peasycap->audio_fill];
if (PAGE_SIZE < (paudio_buffer->pto - paudio_buffer->pgo)) {
SAM("ERROR: bad paudio_buffer->pto\n");
return;
}
if (PAGE_SIZE == (paudio_buffer->pto - paudio_buffer->pgo)) {
paudio_buffer->pto = paudio_buffer->pgo;
(peasycap->audio_fill)++;
if (peasycap->audio_buffer_page_many <= peasycap->audio_fill)
peasycap->audio_fill = 0;
JOM(8, "bumped peasycap->"
"audio_fill to %i\n",
peasycap->audio_fill);
paudio_buffer = &peasycap->audio_buffer[peasycap->audio_fill];
paudio_buffer->pto = paudio_buffer->pgo;
if (!(peasycap->audio_fill % peasycap->audio_pages_per_fragment)) {
JOM(12, "wakeup call on wq_audio, %i=frag reading %i=fragment fill\n",
(peasycap->audio_read / peasycap->audio_pages_per_fragment),
(peasycap->audio_fill / peasycap->audio_pages_per_fragment));
wake_up_interruptible(&(peasycap->wq_audio));
}
}
much = PAGE_SIZE - (int)(paudio_buffer->pto - paudio_buffer->pgo);
if (!peasycap->microphone) {
if (much > more)
much = more;
memcpy(paudio_buffer->pto, p1, much);
p1 += much;
more -= much;
} else {
#ifdef UPSAMPLE
if (much % 16)
JOM(8, "MISTAKE? much"
" is not divisible by 16\n");
if (much > (16 * more))
much = 16 * more;
p2 = (u8 *)paudio_buffer->pto;
for (j = 0; j < (much/16); j++) {
newaudio = ((int) *p1) - 128;
newaudio = 128 * newaudio;
delta = (newaudio - oldaudio) / 4;
tmp = oldaudio + delta;
for (k = 0; k < 4; k++) {
*p2 = (0x00FF & tmp);
*(p2 + 1) = (0xFF00 & tmp) >> 8;
p2 += 2;
*p2 = (0x00FF & tmp);
*(p2 + 1) = (0xFF00 & tmp) >> 8;
p2 += 2;
tmp += delta;
}
p1++;
more--;
oldaudio = tmp;
}
#else /*!UPSAMPLE*/
if (much > (2 * more))
much = 2 * more;
p2 = (u8 *)paudio_buffer->pto;
for (j = 0; j < (much / 2); j++) {
tmp = ((int) *p1) - 128;
tmp = 128 * tmp;
*p2 = (0x00FF & tmp);
*(p2 + 1) = (0xFF00 & tmp) >> 8;
p1++;
p2 += 2;
more--;
}
#endif /*UPSAMPLE*/
}
(paudio_buffer->pto) += much;
}
}
} else {
JOM(12, "discarding audio samples because "
"%i=purb->iso_frame_desc[i].status\n",
purb->iso_frame_desc[i].status);
}
#ifdef UPSAMPLE
peasycap->oldaudio = oldaudio;
#endif /*UPSAMPLE*/
}
/*---------------------------------------------------------------------------*/
/*
* RESUBMIT THIS URB
*/
/*---------------------------------------------------------------------------*/
resubmit:
if (peasycap->audio_isoc_streaming) {
rc = usb_submit_urb(purb, GFP_ATOMIC);
if (rc) {
if (-ENODEV != rc && -ENOENT != rc) {
SAM("ERROR: while %i=audio_idle, "
"usb_submit_urb() failed "
"with rc: -%s: %d\n", peasycap->audio_idle,
strerror(rc), rc);
}
}
}
return;
}
/*****************************************************************************/
/*---------------------------------------------------------------------------*/
/*
* THE AUDIO URBS ARE SUBMITTED AT THIS EARLY STAGE SO THAT IT IS POSSIBLE TO
* STREAM FROM /dev/easyoss1 WITH SIMPLE PROGRAMS SUCH AS cat WHICH DO NOT
* HAVE AN IOCTL INTERFACE.
*/
/*---------------------------------------------------------------------------*/
static int easyoss_open(struct inode *inode, struct file *file)
{
struct usb_interface *pusb_interface;
struct easycap *peasycap;
int subminor;
struct v4l2_device *pv4l2_device;
JOT(4, "begins\n");
subminor = iminor(inode);
pusb_interface = usb_find_interface(&easycap_usb_driver, subminor);
if (!pusb_interface) {
SAY("ERROR: pusb_interface is NULL\n");
SAY("ending unsuccessfully\n");
return -1;
}
peasycap = usb_get_intfdata(pusb_interface);
if (!peasycap) {
SAY("ERROR: peasycap is NULL\n");
SAY("ending unsuccessfully\n");
return -1;
}
/*---------------------------------------------------------------------------*/
/*
* SOME VERSIONS OF THE videodev MODULE OVERWRITE THE DATA WHICH HAS
* BEEN WRITTEN BY THE CALL TO usb_set_intfdata() IN easycap_usb_probe(),
* REPLACING IT WITH A POINTER TO THE EMBEDDED v4l2_device STRUCTURE.
* TO DETECT THIS, THE STRING IN THE easycap.telltale[] BUFFER IS CHECKED.
*/
/*---------------------------------------------------------------------------*/
if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
pv4l2_device = usb_get_intfdata(pusb_interface);
if (!pv4l2_device) {
SAY("ERROR: pv4l2_device is NULL\n");
return -EFAULT;
}
peasycap = container_of(pv4l2_device,
struct easycap, v4l2_device);
}
/*---------------------------------------------------------------------------*/
if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
SAY("ERROR: bad peasycap: %p\n", peasycap);
return -EFAULT;
}
/*---------------------------------------------------------------------------*/
file->private_data = peasycap;
if (0 != easycap_sound_setup(peasycap)) {
;
;
}
return 0;
}
/*****************************************************************************/
static int easyoss_release(struct inode *inode, struct file *file)
{
struct easycap *peasycap;
JOT(4, "begins\n");
peasycap = file->private_data;
if (!peasycap) {
SAY("ERROR: peasycap is NULL.\n");
return -EFAULT;
}
if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
SAY("ERROR: bad peasycap: %p\n", peasycap);
return -EFAULT;
}
if (0 != kill_audio_urbs(peasycap)) {
SAM("ERROR: kill_audio_urbs() failed\n");
return -EFAULT;
}
JOM(4, "ending successfully\n");
return 0;
}
/*****************************************************************************/
static ssize_t easyoss_read(struct file *file, char __user *puserspacebuffer,
size_t kount, loff_t *poff)
{
struct timeval timeval;
long long int above, below, mean;
struct signed_div_result sdr;
unsigned char *p0;
long int kount1, more, rc, l0, lm;
int fragment, kd;
struct easycap *peasycap;
struct data_buffer *pdata_buffer;
size_t szret;
/*---------------------------------------------------------------------------*/
/*
* DO A BLOCKING READ TO TRANSFER DATA TO USER SPACE.
*
******************************************************************************
***** N.B. IF THIS FUNCTION RETURNS 0, NOTHING IS SEEN IN USER SPACE. ******
***** THIS CONDITION SIGNIFIES END-OF-FILE. ******
******************************************************************************
*/
/*---------------------------------------------------------------------------*/
JOT(8, "%5zd=kount %5lld=*poff\n", kount, *poff);
if (!file) {
SAY("ERROR: file is NULL\n");
return -ERESTARTSYS;
}
peasycap = file->private_data;
if (!peasycap) {
SAY("ERROR in easyoss_read(): peasycap is NULL\n");
return -EFAULT;
}
if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
SAY("ERROR: bad peasycap: %p\n", peasycap);
return -EFAULT;
}
if (!peasycap->pusb_device) {
SAY("ERROR: peasycap->pusb_device is NULL\n");
return -EFAULT;
}
kd = isdongle(peasycap);
if (0 <= kd && DONGLE_MANY > kd) {
if (mutex_lock_interruptible(&(easycapdc60_dongle[kd].mutex_audio))) {
SAY("ERROR: "
"cannot lock dongle[%i].mutex_audio\n", kd);
return -ERESTARTSYS;
}
JOM(4, "locked dongle[%i].mutex_audio\n", kd);
/*
* MEANWHILE, easycap_usb_disconnect()
* MAY HAVE FREED POINTER peasycap,
* IN WHICH CASE A REPEAT CALL TO isdongle() WILL FAIL.
* IF NECESSARY, BAIL OUT.
*/
if (kd != isdongle(peasycap))
return -ERESTARTSYS;
if (!file) {
SAY("ERROR: file is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -ERESTARTSYS;
}
peasycap = file->private_data;
if (!peasycap) {
SAY("ERROR: peasycap is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -ERESTARTSYS;
}
if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
SAY("ERROR: bad peasycap: %p\n", peasycap);
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -ERESTARTSYS;
}
if (!peasycap->pusb_device) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -ERESTARTSYS;
}
} else {
/*
* IF easycap_usb_disconnect()
* HAS ALREADY FREED POINTER peasycap BEFORE THE
* ATTEMPT TO ACQUIRE THE SEMAPHORE,
* isdongle() WILL HAVE FAILED. BAIL OUT.
*/
return -ERESTARTSYS;
}
/*---------------------------------------------------------------------------*/
JOT(16, "%sBLOCKING kount=%zd, *poff=%lld\n",
(file->f_flags & O_NONBLOCK) ? "NON" : "", kount, *poff);
if ((0 > peasycap->audio_read) ||
(peasycap->audio_buffer_page_many <= peasycap->audio_read)) {
SAM("ERROR: peasycap->audio_read out of range\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
pdata_buffer = &peasycap->audio_buffer[peasycap->audio_read];
if (!pdata_buffer) {
SAM("ERROR: pdata_buffer is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
JOM(12, "before wait, %i=frag read %i=frag fill\n",
(peasycap->audio_read / peasycap->audio_pages_per_fragment),
(peasycap->audio_fill / peasycap->audio_pages_per_fragment));
fragment = (peasycap->audio_read / peasycap->audio_pages_per_fragment);
while ((fragment == (peasycap->audio_fill / peasycap->audio_pages_per_fragment)) ||
(0 == (PAGE_SIZE - (pdata_buffer->pto - pdata_buffer->pgo)))) {
if (file->f_flags & O_NONBLOCK) {
JOM(16, "returning -EAGAIN as instructed\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EAGAIN;
}
rc = wait_event_interruptible(peasycap->wq_audio,
(peasycap->audio_idle || peasycap->audio_eof ||
((fragment !=
(peasycap->audio_fill / peasycap->audio_pages_per_fragment)) &&
(0 < (PAGE_SIZE - (pdata_buffer->pto - pdata_buffer->pgo))))));
if (rc) {
SAM("aborted by signal\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -ERESTARTSYS;
}
if (peasycap->audio_eof) {
JOM(8, "returning 0 because %i=audio_eof\n",
peasycap->audio_eof);
kill_audio_urbs(peasycap);
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return 0;
}
if (peasycap->audio_idle) {
JOM(16, "returning 0 because %i=audio_idle\n",
peasycap->audio_idle);
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return 0;
}
if (!peasycap->audio_isoc_streaming) {
JOM(16, "returning 0 because audio urbs not streaming\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return 0;
}
}
JOM(12, "after wait, %i=frag read %i=frag fill\n",
(peasycap->audio_read / peasycap->audio_pages_per_fragment),
(peasycap->audio_fill / peasycap->audio_pages_per_fragment));
szret = (size_t)0;
fragment = (peasycap->audio_read / peasycap->audio_pages_per_fragment);
while (fragment == (peasycap->audio_read / peasycap->audio_pages_per_fragment)) {
if (!pdata_buffer->pgo) {
SAM("ERROR: pdata_buffer->pgo is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
if (!pdata_buffer->pto) {
SAM("ERROR: pdata_buffer->pto is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
kount1 = PAGE_SIZE - (pdata_buffer->pto - pdata_buffer->pgo);
if (0 > kount1) {
SAM("MISTAKE: kount1 is negative\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -ERESTARTSYS;
}
if (!kount1) {
peasycap->audio_read++;
if (peasycap->audio_buffer_page_many <= peasycap->audio_read)
peasycap->audio_read = 0;
JOM(12, "bumped peasycap->audio_read to %i\n",
peasycap->audio_read);
if (fragment != (peasycap->audio_read / peasycap->audio_pages_per_fragment))
break;
if ((0 > peasycap->audio_read) ||
(peasycap->audio_buffer_page_many <= peasycap->audio_read)) {
SAM("ERROR: peasycap->audio_read out of range\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
pdata_buffer = &peasycap->audio_buffer[peasycap->audio_read];
if (!pdata_buffer) {
SAM("ERROR: pdata_buffer is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
if (!pdata_buffer->pgo) {
SAM("ERROR: pdata_buffer->pgo is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
if (!pdata_buffer->pto) {
SAM("ERROR: pdata_buffer->pto is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
kount1 = PAGE_SIZE - (pdata_buffer->pto - pdata_buffer->pgo);
}
JOM(12, "ready to send %zd bytes\n", kount1);
JOM(12, "still to send %li bytes\n", (long int) kount);
more = kount1;
if (more > kount)
more = kount;
JOM(12, "agreed to send %li bytes from page %i\n",
more, peasycap->audio_read);
if (!more)
break;
/*
* ACCUMULATE DYNAMIC-RANGE INFORMATION
*/
p0 = (unsigned char *)pdata_buffer->pgo;
l0 = 0;
lm = more/2;
while (l0 < lm) {
SUMMER(p0, &peasycap->audio_sample,
&peasycap->audio_niveau,
&peasycap->audio_square);
l0++;
p0 += 2;
}
/*-----------------------------------------------------------*/
rc = copy_to_user(puserspacebuffer, pdata_buffer->pto, more);
if (rc) {
SAM("ERROR: copy_to_user() returned %li\n", rc);
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
*poff += (loff_t)more;
szret += (size_t)more;
pdata_buffer->pto += more;
puserspacebuffer += more;
kount -= (size_t)more;
}
JOM(12, "after read, %i=frag read %i=frag fill\n",
(peasycap->audio_read / peasycap->audio_pages_per_fragment),
(peasycap->audio_fill / peasycap->audio_pages_per_fragment));
if (kount < 0) {
SAM("MISTAKE: %li=kount %li=szret\n",
(long int)kount, (long int)szret);
}
/*---------------------------------------------------------------------------*/
/*
* CALCULATE DYNAMIC RANGE FOR (VAPOURWARE) AUTOMATIC VOLUME CONTROL
*/
/*---------------------------------------------------------------------------*/
if (peasycap->audio_sample) {
below = peasycap->audio_sample;
above = peasycap->audio_square;
sdr = signed_div(above, below);
above = sdr.quotient;
mean = peasycap->audio_niveau;
sdr = signed_div(mean, peasycap->audio_sample);
JOM(8, "%8lli=mean %8lli=meansquare after %lli samples, =>\n",
sdr.quotient, above, peasycap->audio_sample);
sdr = signed_div(above, 32768);
JOM(8, "audio dynamic range is roughly %lli\n", sdr.quotient);
}
/*---------------------------------------------------------------------------*/
/*
* UPDATE THE AUDIO CLOCK
*/
/*---------------------------------------------------------------------------*/
do_gettimeofday(&timeval);
if (!peasycap->timeval1.tv_sec) {
peasycap->audio_bytes = 0;
peasycap->timeval3 = timeval;
peasycap->timeval1 = peasycap->timeval3;
sdr.quotient = 192000;
} else {
peasycap->audio_bytes += (long long int) szret;
below = ((long long int)(1000000)) *
((long long int)(timeval.tv_sec - peasycap->timeval3.tv_sec)) +
(long long int)(timeval.tv_usec - peasycap->timeval3.tv_usec);
above = 1000000 * ((long long int) peasycap->audio_bytes);
if (below)
sdr = signed_div(above, below);
else
sdr.quotient = 192000;
}
JOM(8, "audio streaming at %lli bytes/second\n", sdr.quotient);
peasycap->dnbydt = sdr.quotient;
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
JOM(4, "unlocked easycapdc60_dongle[%i].mutex_audio\n", kd);
JOM(8, "returning %li\n", (long int)szret);
return szret;
}
/*---------------------------------------------------------------------------*/
static long easyoss_unlocked_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
struct easycap *peasycap;
struct usb_device *p;
int kd;
if (!file) {
SAY("ERROR: file is NULL\n");
return -ERESTARTSYS;
}
peasycap = file->private_data;
if (!peasycap) {
SAY("ERROR: peasycap is NULL.\n");
return -EFAULT;
}
if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
SAY("ERROR: bad peasycap\n");
return -EFAULT;
}
p = peasycap->pusb_device;
if (!p) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
return -EFAULT;
}
kd = isdongle(peasycap);
if (0 <= kd && DONGLE_MANY > kd) {
if (mutex_lock_interruptible(&easycapdc60_dongle[kd].mutex_audio)) {
SAY("ERROR: cannot lock "
"easycapdc60_dongle[%i].mutex_audio\n", kd);
return -ERESTARTSYS;
}
JOM(4, "locked easycapdc60_dongle[%i].mutex_audio\n", kd);
/*
* MEANWHILE, easycap_usb_disconnect()
* MAY HAVE FREED POINTER peasycap,
* IN WHICH CASE A REPEAT CALL TO isdongle() WILL FAIL.
* IF NECESSARY, BAIL OUT.
*/
if (kd != isdongle(peasycap))
return -ERESTARTSYS;
if (!file) {
SAY("ERROR: file is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -ERESTARTSYS;
}
peasycap = file->private_data;
if (!peasycap) {
SAY("ERROR: peasycap is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -ERESTARTSYS;
}
if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
SAY("ERROR: bad peasycap\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
p = peasycap->pusb_device;
if (!peasycap->pusb_device) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -ERESTARTSYS;
}
} else {
/*
* IF easycap_usb_disconnect()
* HAS ALREADY FREED POINTER peasycap BEFORE THE
* ATTEMPT TO ACQUIRE THE SEMAPHORE,
* isdongle() WILL HAVE FAILED. BAIL OUT.
*/
return -ERESTARTSYS;
}
/*---------------------------------------------------------------------------*/
switch (cmd) {
case SNDCTL_DSP_GETCAPS: {
int caps;
JOM(8, "SNDCTL_DSP_GETCAPS\n");
#ifdef UPSAMPLE
if (peasycap->microphone)
caps = 0x04400000;
else
caps = 0x04400000;
#else
if (peasycap->microphone)
caps = 0x02400000;
else
caps = 0x04400000;
#endif /*UPSAMPLE*/
if (copy_to_user((void __user *)arg, &caps, sizeof(int))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
break;
}
case SNDCTL_DSP_GETFMTS: {
int incoming;
JOM(8, "SNDCTL_DSP_GETFMTS\n");
#ifdef UPSAMPLE
if (peasycap->microphone)
incoming = AFMT_S16_LE;
else
incoming = AFMT_S16_LE;
#else
if (peasycap->microphone)
incoming = AFMT_S16_LE;
else
incoming = AFMT_S16_LE;
#endif /*UPSAMPLE*/
if (copy_to_user((void __user *)arg, &incoming, sizeof(int))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
break;
}
case SNDCTL_DSP_SETFMT: {
int incoming, outgoing;
JOM(8, "SNDCTL_DSP_SETFMT\n");
if (copy_from_user(&incoming, (void __user *)arg, sizeof(int))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
JOM(8, "........... %i=incoming\n", incoming);
#ifdef UPSAMPLE
if (peasycap->microphone)
outgoing = AFMT_S16_LE;
else
outgoing = AFMT_S16_LE;
#else
if (peasycap->microphone)
outgoing = AFMT_S16_LE;
else
outgoing = AFMT_S16_LE;
#endif /*UPSAMPLE*/
if (incoming != outgoing) {
JOM(8, "........... %i=outgoing\n", outgoing);
JOM(8, " cf. %i=AFMT_S16_LE\n", AFMT_S16_LE);
JOM(8, " cf. %i=AFMT_U8\n", AFMT_U8);
if (copy_to_user((void __user *)arg, &outgoing, sizeof(int))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EINVAL ;
}
break;
}
case SNDCTL_DSP_STEREO: {
int incoming;
JOM(8, "SNDCTL_DSP_STEREO\n");
if (copy_from_user(&incoming, (void __user *)arg, sizeof(int))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
JOM(8, "........... %i=incoming\n", incoming);
#ifdef UPSAMPLE
if (peasycap->microphone)
incoming = 1;
else
incoming = 1;
#else
if (peasycap->microphone)
incoming = 0;
else
incoming = 1;
#endif /*UPSAMPLE*/
if (copy_to_user((void __user *)arg, &incoming, sizeof(int))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
break;
}
case SNDCTL_DSP_SPEED: {
int incoming;
JOM(8, "SNDCTL_DSP_SPEED\n");
if (copy_from_user(&incoming, (void __user *)arg, sizeof(int))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
JOM(8, "........... %i=incoming\n", incoming);
#ifdef UPSAMPLE
if (peasycap->microphone)
incoming = 32000;
else
incoming = 48000;
#else
if (peasycap->microphone)
incoming = 8000;
else
incoming = 48000;
#endif /*UPSAMPLE*/
if (copy_to_user((void __user *)arg, &incoming, sizeof(int))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
break;
}
case SNDCTL_DSP_GETTRIGGER: {
int incoming;
JOM(8, "SNDCTL_DSP_GETTRIGGER\n");
if (copy_from_user(&incoming, (void __user *)arg, sizeof(int))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
JOM(8, "........... %i=incoming\n", incoming);
incoming = PCM_ENABLE_INPUT;
if (copy_to_user((void __user *)arg, &incoming, sizeof(int))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
break;
}
case SNDCTL_DSP_SETTRIGGER: {
int incoming;
JOM(8, "SNDCTL_DSP_SETTRIGGER\n");
if (copy_from_user(&incoming, (void __user *)arg, sizeof(int))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
JOM(8, "........... %i=incoming\n", incoming);
JOM(8, "........... cf 0x%x=PCM_ENABLE_INPUT "
"0x%x=PCM_ENABLE_OUTPUT\n",
PCM_ENABLE_INPUT, PCM_ENABLE_OUTPUT);
;
;
;
;
break;
}
case SNDCTL_DSP_GETBLKSIZE: {
int incoming;
JOM(8, "SNDCTL_DSP_GETBLKSIZE\n");
if (copy_from_user(&incoming, (void __user *)arg, sizeof(int))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
JOM(8, "........... %i=incoming\n", incoming);
incoming = peasycap->audio_bytes_per_fragment;
if (copy_to_user((void __user *)arg, &incoming, sizeof(int))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
break;
}
case SNDCTL_DSP_GETISPACE: {
struct audio_buf_info audio_buf_info;
JOM(8, "SNDCTL_DSP_GETISPACE\n");
audio_buf_info.bytes = peasycap->audio_bytes_per_fragment;
audio_buf_info.fragments = 1;
audio_buf_info.fragsize = 0;
audio_buf_info.fragstotal = 0;
if (copy_to_user((void __user *)arg, &audio_buf_info, sizeof(int))) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -EFAULT;
}
break;
}
case 0x00005401:
case 0x00005402:
case 0x00005403:
case 0x00005404:
case 0x00005405:
case 0x00005406: {
JOM(8, "SNDCTL_TMR_...: 0x%08X unsupported\n", cmd);
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -ENOIOCTLCMD;
}
default: {
JOM(8, "ERROR: unrecognized DSP IOCTL command: 0x%08X\n", cmd);
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return -ENOIOCTLCMD;
}
}
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
return 0;
}
/*****************************************************************************/
static const struct file_operations easyoss_fops = {
.owner = THIS_MODULE,
.open = easyoss_open,
.release = easyoss_release,
.unlocked_ioctl = easyoss_unlocked_ioctl,
.read = easyoss_read,
.llseek = no_llseek,
};
struct usb_class_driver easyoss_class = {
.name = "usb/easyoss%d",
.fops = &easyoss_fops,
.minor_base = USB_SKEL_MINOR_BASE,
};
/*****************************************************************************/