dspemu.c File Reference

#include <linux/config.h>
#include <linux/module.h>
#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/smp_lock.h>
#include <linux/devfs_fs_kernel.h>
#include <linux/pci.h>
#include <linux/types.h>
#include <linux/major.h>
#include <linux/errno.h>
#include <linux/signal.h>
#include <linux/fcntl.h>
#include <linux/interrupt.h>
#include <linux/devpts_fs.h>
#include <linux/file.h>
#include <linux/console.h>
#include <linux/timer.h>
#include <linux/ctype.h>
#include <linux/kd.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/bitops.h>
#include <linux/unistd.h>
#include "dbgstuff.h"
#include "pcsim.h"

Go to the source code of this file.

Classes
struct	dspsim_thread_data
Defines
#define	PCDSP_VERSION   "V0.1 (C) P.Zahl 2000"
#define	__KERNEL_SYSCALLS__
#define	ACKD_DSP   dspsim_td.SrvReqAck
#define	REQD_DSP   dspsim_td.ReqDAck
#define	TIMEOUT_TICKS   19
#define	JIFFIES_SEM   2
#define	MAXWAKEUPS_SEM   10
#define	MAXWAKEUPS_WMBOX   10
#define	MAXWAKEUPS_RMBOX   10
#define	MAKE_MY_TIMEOUT_TMR(tmr)
#define	SEEK_SET   0
#define	SEEK_CUR   1
#define	SEEK_END   2
Functions
static	DECLARE_WAIT_QUEUE_HEAD (waitq)
static	DECLARE_MUTEX_LOCKED (dspsimd_exited)
static void	timeout (unsigned long ignore)
void	mysleep (unsigned long myjiffies)
int	InitEmu (struct dspsim_thread_data *dsp)
void	ExitEmu (void)
void	ServiceRequest (struct dspsim_thread_data *dsp)
int	BoxFull (int wait)
int	BoxEmpty (int wait)
int	ChkBoxEmpty (int wait)
int	WriteBox (unsigned long data, int wait)
int	ChkBoxFull (int wait)
int	ReadBox (unsigned long *data, int wait)
static loff_t	pcdsp_seek (struct file *, loff_t, int)
static ssize_t	pcdsp_read (struct file *, char *, size_t, loff_t *)
static ssize_t	pcdsp_write (struct file *, const char *, size_t, loff_t *)
static int	pcdsp_release (struct inode *, struct file *)
static int	pcdsp_ioctl (struct inode *, struct file *, unsigned int, unsigned long)
int	pcdsp_initialize (void)
void	pcdsp_quit (void)
int	init_module (void)
void	cleanup_module (void)
static int	dspsim_thread (void *data)
void	start_dsp (struct dspsim_thread_data *dsp)
void	stop_dsp (struct dspsim_thread_data *dsp)
static int	pcdsp_open (struct inode *inode, struct file *f)
int	pcdsp_read_proc (char *page, char **start, off_t off, int count, int *eof, void *data)
Variables
static devfs_handle_t	devfs_handle = NULL
static int	opened
static char *	pcdsp_dprambaseptr
static int	wakeups = -1
dspsim_thread_data	dspsim_td
file_operations	pcdsp_fops

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Define Documentation

#define __KERNEL_SYSCALLS__

Definition at line 93 of file dspemu.c.

#define ACKD_DSP   dspsim_td.SrvReqAck

Definition at line 134 of file dspemu.c. Referenced by BoxFull(), ServiceRequest(), and WriteBox().

#define JIFFIES_SEM   2

Definition at line 143 of file dspemu.c.

#define MAKE_MY_TIMEOUT_TMR (  tmr   )

Value: struct timer_list tmr; \ init_timer(&tmr); \ tmr.function = timeout; \ tmr.data = 0 Definition at line 287 of file dspemu.c.

#define MAXWAKEUPS_RMBOX   10

Definition at line 146 of file dspemu.c. Referenced by BoxEmpty(), and BoxFull().

#define MAXWAKEUPS_SEM   10

Definition at line 144 of file dspemu.c.

#define MAXWAKEUPS_WMBOX   10

Definition at line 145 of file dspemu.c. Referenced by BoxEmpty(), and BoxFull().

#define PCDSP_VERSION   "V0.1 (C) P.Zahl 2000"

Definition at line 41 of file dspemu.c. Referenced by pcdsp_initialize().

#define REQD_DSP   dspsim_td.ReqDAck

Definition at line 135 of file dspemu.c. Referenced by BoxEmpty(), ServiceRequest(), and WriteBox().

#define SEEK_CUR   1

Definition at line 403 of file dspemu.c. Referenced by pcdsp_seek().

#define SEEK_END   2

Definition at line 404 of file dspemu.c. Referenced by pcdsp_seek().

#define SEEK_SET   0

Definition at line 402 of file dspemu.c. Referenced by FileCheck(), innovative_dsp_hwi_dev::innovative_dsp_hwi_dev(), nano_manipulatorControl::nano_manipulatorControl(), pcdsp_seek(), and WSxM_ImExportFile::WSxMRead().

#define TIMEOUT_TICKS   19

Definition at line 142 of file dspemu.c.

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Function Documentation

int BoxEmpty (  int  wait  )

Definition at line 330 of file dspemu.c. References FALSE, KDEBUG_L2, MAKE_MY_TIMEOUT_TMR, MAXWAKEUPS_RMBOX, MAXWAKEUPS_WMBOX, REQD_DSP, TIMEOUT_TICKS, TRUE, waitq, and wakeups. Referenced by ChkBoxEmpty(), and WriteBox().

int BoxFull (  int  wait  )

Definition at line 307 of file dspemu.c. References ACKD_DSP, FALSE, KDEBUG_L2, MAKE_MY_TIMEOUT_TMR, MAXWAKEUPS_RMBOX, MAXWAKEUPS_WMBOX, TIMEOUT_TICKS, TRUE, waitq, and wakeups. Referenced by ChkBoxFull(), and ReadBox().

int ChkBoxEmpty (  int  wait  )

Definition at line 353 of file dspemu.c. References BoxEmpty(), FALSE, and TRUE. Referenced by pcdsp_ioctl().

int ChkBoxFull (  int  wait  )

Definition at line 375 of file dspemu.c. References BoxFull(), FALSE, and TRUE. Referenced by pcdsp_ioctl().

void cleanup_module (  void   )

static DECLARE_MUTEX_LOCKED (  dspsimd_exited   )  [static]

static DECLARE_WAIT_QUEUE_HEAD (  waitq   )  [static]

static int dspsim_thread (  void *  data  )  [static]

Definition at line 217 of file dspemu.c. References dspsim_thread_data::active, KDEBUG, KDEBUG_L3, ServiceRequest(), signal_pending, and dspsim_thread_data::wq. Referenced by start_dsp().

void ExitEmu (  void   )

Definition at line 196 of file dspemu.c. Referenced by pcdsp_quit().

int init_module (  void   )

int InitEmu (  struct dspsim_thread_data *  dsp  )

Definition at line 195 of file dspemu.c. Referenced by pcdsp_initialize().

void mysleep (  unsigned long  myjiffies  )

int pcdsp_initialize (  void   )

Definition at line 503 of file dspemu.c. References dspsim_td, FALSE, InitEmu(), KDEBUG, KDEBUG_L1, opened, PCDSP_DPRAM_SIZE, pcdsp_dprambaseptr, PCDSP_VERSION, dspsim_thread_data::ReqDAck, dspsim_thread_data::SrvReqAck, start_dsp(), TRUE, and dspsim_thread_data::virtual_dpram.

static int pcdsp_ioctl (  struct inode *  , struct file *  , unsigned  int, unsigned  long )  [static]

Definition at line 459 of file dspemu.c. References ChkBoxEmpty(), ChkBoxFull(), FALSE, KDEBUG, MODID, PCDSP_GETMODID, PCDSP_HALT, PCDSP_MBOX_EMPTY, PCDSP_MBOX_FULL, PCDSP_MBOX_READ_NOWAIT, PCDSP_MBOX_READ_WAIT, PCDSP_MBOX_WRITE_NOWAIT, PCDSP_MBOX_WRITE_WAIT, PCDSP_PUT_SPEED, PCDSP_RESET, PCDSP_RUN, ReadBox(), TRUE, and WriteBox().

static int pcdsp_open (  struct inode *  inode, struct file *  f )  [static]

Definition at line 444 of file dspemu.c. References KDEBUG, and opened.

void pcdsp_quit (  void   )  [inline]

Definition at line 532 of file dspemu.c. References dspsim_td, ExitEmu(), KDEBUG, stop_dsp(), and dspsim_thread_data::virtual_dpram.

static ssize_t pcdsp_read (  struct file *  , char *  , size_t  , loff_t *  )  [static]

Definition at line 423 of file dspemu.c. References KDEBUG_L2, PCDSP_DPRAM_SIZE, and pcdsp_dprambaseptr.

int pcdsp_read_proc (  char *  page, char **  start, off_t  off, int  count, int *  eof, void *  data )

Definition at line 543 of file dspemu.c. References DSP_LCDBUFFER, dspsim_td, opened, and dspsim_thread_data::virtual_dpram.

static int pcdsp_release (  struct inode *  , struct file *  )  [static]

Definition at line 452 of file dspemu.c. References KDEBUG, and opened.

static loff_t pcdsp_seek (  struct file *  , loff_t  , int  )  [static]

Definition at line 407 of file dspemu.c. References KDEBUG, PCDSP_DPRAM_SIZE, SEEK_CUR, SEEK_END, and SEEK_SET.

static ssize_t pcdsp_write (  struct file *  , const char *  , size_t  , loff_t *  )  [static]

Definition at line 434 of file dspemu.c. References KDEBUG_L2, PCDSP_DPRAM_SIZE, and pcdsp_dprambaseptr.

int ReadBox (  unsigned long *  data, int  wait )

Definition at line 382 of file dspemu.c. References BoxFull(), FALSE, and TRUE. Referenced by pcdsp_ioctl().

void ServiceRequest (  struct dspsim_thread_data *  dsp  )

Definition at line 197 of file dspemu.c. References ACKD_DSP, FALSE, REQD_DSP, TRUE, and dspsim_thread_data::virtual_dpram. Referenced by dspsim_thread().

void start_dsp (  struct dspsim_thread_data *  dsp  )

Definition at line 246 of file dspemu.c. References dspsim_thread_data::active, dspsim_thread(), KDEBUG, dspsim_thread_data::thread, and dspsim_thread_data::wq. Referenced by pcdsp_initialize().

void stop_dsp (  struct dspsim_thread_data *  dsp  )

Definition at line 263 of file dspemu.c. References dspsim_thread_data::active, KDEBUG, mysleep(), and dspsim_thread_data::thread. Referenced by pcdsp_quit().

static void timeout (  unsigned long  ignore  )  [static]

Definition at line 282 of file dspemu.c. References KDEBUG_L3, waitq, and wakeups.

int WriteBox (  unsigned long  data, int  wait )

Definition at line 360 of file dspemu.c. References ACKD_DSP, dspsim_thread_data::active, BoxEmpty(), dspsim_td, FALSE, KDEBUG, REQD_DSP, TRUE, and dspsim_thread_data::wq. Referenced by pcdsp_ioctl().

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Variable Documentation

devfs_handle_t devfs_handle = NULL [static]

Definition at line 104 of file dspemu.c.

struct dspsim_thread_data dspsim_td

Definition at line 132 of file dspemu.c. Referenced by pcdsp_initialize(), pcdsp_quit(), pcdsp_read_proc(), and WriteBox().

int opened [static]

Definition at line 106 of file dspemu.c.

char* pcdsp_dprambaseptr [static]

Definition at line 109 of file dspemu.c. Referenced by pcdsp_initialize(), pcdsp_ioctl(), pcdsp_read(), and pcdsp_write().

struct file_operations pcdsp_fops

Initial value: { llseek: pcdsp_seek, read: pcdsp_read, write: pcdsp_write, ioctl: pcdsp_ioctl, open: pcdsp_open, release: pcdsp_release, } Definition at line 615 of file dspemu.c.

int wakeups = -1 [static]

Definition at line 112 of file dspemu.c. Referenced by BoxEmpty(), BoxFull(), ChanneltronCounts(), get_dport_range(), and timeout().

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