dsp56k.c File Reference

#include <linux/module.h>
#include <linux/major.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/mutex.h>
#include <linux/firmware.h>
#include <linux/platform_device.h>
#include <linux/uaccess.h>
#include <asm/atarihw.h>
#include <asm/traps.h>
#include <asm/dsp56k.h>

Go to the source code of this file.

Data Structures
struct	dsp56k_device

Macros
#define	DSP56K_DEV_56001   0 /* The only device so far */
#define	TIMEOUT   10 /* Host port timeout in number of tries */
#define	MAXIO   2048 /* Maximum number of words before sleep */
#define	DSP56K_MAX_BINARY_LENGTH   (3*64*1024)
#define	DSP56K_TX_INT_ON   dsp56k_host_interface.icr |= DSP56K_ICR_TREQ
#define	DSP56K_RX_INT_ON   dsp56k_host_interface.icr |= DSP56K_ICR_RREQ
#define	DSP56K_TX_INT_OFF   dsp56k_host_interface.icr &= ~DSP56K_ICR_TREQ
#define	DSP56K_RX_INT_OFF   dsp56k_host_interface.icr &= ~DSP56K_ICR_RREQ
#define	DSP56K_TRANSMIT   (dsp56k_host_interface.isr & DSP56K_ISR_TXDE)
#define	DSP56K_RECEIVE   (dsp56k_host_interface.isr & DSP56K_ISR_RXDF)
#define	handshake(count, maxio, timeout, ENABLE, f)
#define	tx_wait(n)
#define	rx_wait(n)

Functions
	module_init (dsp56k_init_driver)
	module_exit (dsp56k_cleanup_driver)
	MODULE_LICENSE ("GPL")
	MODULE_FIRMWARE ("dsp56k/bootstrap.bin")

Macro Definition Documentation

#define DSP56K_DEV_56001   0 /* The only device so far */

Definition at line 46 of file dsp56k.c.

#define DSP56K_MAX_BINARY_LENGTH   (3*64*1024)

Definition at line 50 of file dsp56k.c.

#define DSP56K_RECEIVE   (dsp56k_host_interface.isr & DSP56K_ISR_RXDF)

Definition at line 58 of file dsp56k.c.

#define DSP56K_RX_INT_OFF   dsp56k_host_interface.icr &= ~DSP56K_ICR_RREQ

Definition at line 55 of file dsp56k.c.

#define DSP56K_RX_INT_ON   dsp56k_host_interface.icr |= DSP56K_ICR_RREQ

Definition at line 53 of file dsp56k.c.

#define DSP56K_TRANSMIT   (dsp56k_host_interface.isr & DSP56K_ISR_TXDE)

Definition at line 57 of file dsp56k.c.

#define DSP56K_TX_INT_OFF   dsp56k_host_interface.icr &= ~DSP56K_ICR_TREQ

Definition at line 54 of file dsp56k.c.

#define DSP56K_TX_INT_ON   dsp56k_host_interface.icr |= DSP56K_ICR_TREQ

Definition at line 52 of file dsp56k.c.

#define handshake	(		count,
			maxio,
			timeout,
			ENABLE,
			f
	)

Value:

{ \
    long i, t, m; \
    while (count > 0) { \
        m = min_t(unsigned long, count, maxio); \
        for (i = 0; i < m; i++) { \
            for (t = 0; t < timeout && !ENABLE; t++) \
                msleep(20); \
            if(!ENABLE) \
                return -EIO; \
            f; \
        } \
        count -= m; \
        if (m == maxio) msleep(20); \
    } \
}

Definition at line 60 of file dsp56k.c.

#define MAXIO   2048 /* Maximum number of words before sleep */

Definition at line 49 of file dsp56k.c.

#define rx_wait

(

n

)

Value:

{ \
    int t; \
    for(t = 0; t < n && !DSP56K_RECEIVE; t++) \
        msleep(10); \
    if(!DSP56K_RECEIVE) { \
        return -EIO; \
    } \
}

Definition at line 87 of file dsp56k.c.

#define TIMEOUT   10 /* Host port timeout in number of tries */

Definition at line 48 of file dsp56k.c.

#define tx_wait

(

n

)

Value:

{ \
    int t; \
    for(t = 0; t < n && !DSP56K_TRANSMIT; t++) \
        msleep(10); \
    if(!DSP56K_TRANSMIT) { \
        return -EIO; \
    } \
}

Definition at line 77 of file dsp56k.c.

Function Documentation

module_exit

(

dsp56k_cleanup_driver

)

MODULE_FIRMWARE

(

"dsp56k/bootstrap.bin"

)

module_init

(

dsp56k_init_driver

)

MODULE_LICENSE

(

"GPL"

)