via-cuda.c File Reference

#include <stdarg.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/adb.h>
#include <linux/cuda.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <asm/macintosh.h>
#include <asm/macints.h>
#include <asm/mac_via.h>
#include <asm/io.h>
#include <linux/init.h>

Go to the source code of this file.

Macros
#define	RS   0x200 /* skip between registers */
#define	B   0 /* B-side data */
#define	A   RS /* A-side data */
#define	DIRB   (2*RS) /* B-side direction (1=output) */
#define	DIRA   (3*RS) /* A-side direction (1=output) */
#define	T1CL   (4*RS) /* Timer 1 ctr/latch (low 8 bits) */
#define	T1CH   (5*RS) /* Timer 1 counter (high 8 bits) */
#define	T1LL   (6*RS) /* Timer 1 latch (low 8 bits) */
#define	T1LH   (7*RS) /* Timer 1 latch (high 8 bits) */
#define	T2CL   (8*RS) /* Timer 2 ctr/latch (low 8 bits) */
#define	T2CH   (9*RS) /* Timer 2 counter (high 8 bits) */
#define	SR   (10*RS) /* Shift register */
#define	ACR   (11*RS) /* Auxiliary control register */
#define	PCR   (12*RS) /* Peripheral control register */
#define	IFR   (13*RS) /* Interrupt flag register */
#define	IER   (14*RS) /* Interrupt enable register */
#define	ANH   (15*RS) /* A-side data, no handshake */
#define	TREQ   0x08 /* Transfer request (input) */
#define	TACK   0x10 /* Transfer acknowledge (output) */
#define	TIP   0x20 /* Transfer in progress (output) */
#define	SR_CTRL   0x1c /* Shift register control bits */
#define	SR_EXT   0x0c /* Shift on external clock */
#define	SR_OUT   0x10 /* Shift out if 1 */
#define	IER_SET   0x80 /* set bits in IER */
#define	IER_CLR   0 /* clear bits in IER */
#define	SR_INT   0x04 /* Shift register full/empty */
#define	WAIT_FOR(cond, what)

Enumerations
enum	cuda_state {   idle, sent_first_byte, sending, reading,   read_done, awaiting_reply }

Functions
void	cuda_poll (void)
int	cuda_request (struct adb_request *req, void(*done)(struct adb_request *), int nbytes,...)
int __init	find_via_cuda (void)
	device_initcall (via_cuda_start)

Macro Definition Documentation

#define A   RS /* A-side data */

Definition at line 37 of file via-cuda.c.

#define ACR   (11*RS) /* Auxiliary control register */

Definition at line 47 of file via-cuda.c.

#define ANH   (15*RS) /* A-side data, no handshake */

Definition at line 51 of file via-cuda.c.

macro LIST comment endm macro data LDR LDR STR data LDR LDR STRH data LDR LDR STRB reg LDR LDR STR CMP BNE NOP B   0 /* B-side data */

Definition at line 36 of file via-cuda.c.

#define DIRA   (3*RS) /* A-side direction (1=output) */

Definition at line 39 of file via-cuda.c.

#define DIRB   (2*RS) /* B-side direction (1=output) */

Definition at line 38 of file via-cuda.c.

#define IER   (14*RS) /* Interrupt enable register */

Definition at line 50 of file via-cuda.c.

#define IER_CLR   0 /* clear bits in IER */

Definition at line 65 of file via-cuda.c.

#define IER_SET   0x80 /* set bits in IER */

Definition at line 64 of file via-cuda.c.

#define IFR   (13*RS) /* Interrupt flag register */

Definition at line 49 of file via-cuda.c.

#define PCR   (12*RS) /* Peripheral control register */

Definition at line 48 of file via-cuda.c.

#define RS   0x200 /* skip between registers */

Definition at line 35 of file via-cuda.c.

#define SR   (10*RS) /* Shift register */

Definition at line 46 of file via-cuda.c.

#define SR_CTRL   0x1c /* Shift register control bits */

Definition at line 59 of file via-cuda.c.

#define SR_EXT   0x0c /* Shift on external clock */

Definition at line 60 of file via-cuda.c.

#define SR_INT   0x04 /* Shift register full/empty */

Definition at line 66 of file via-cuda.c.

#define SR_OUT   0x10 /* Shift out if 1 */

Definition at line 61 of file via-cuda.c.

#define T1CH   (5*RS) /* Timer 1 counter (high 8 bits) */

Definition at line 41 of file via-cuda.c.

#define T1CL   (4*RS) /* Timer 1 ctr/latch (low 8 bits) */

Definition at line 40 of file via-cuda.c.

#define T1LH   (7*RS) /* Timer 1 latch (high 8 bits) */

Definition at line 43 of file via-cuda.c.

#define T1LL   (6*RS) /* Timer 1 latch (low 8 bits) */

Definition at line 42 of file via-cuda.c.

#define T2CH   (9*RS) /* Timer 2 counter (high 8 bits) */

Definition at line 45 of file via-cuda.c.

#define T2CL   (8*RS) /* Timer 2 ctr/latch (low 8 bits) */

Definition at line 44 of file via-cuda.c.

#define TACK   0x10 /* Transfer acknowledge (output) */

Definition at line 55 of file via-cuda.c.

#define TIP   0x20 /* Transfer in progress (output) */

Definition at line 56 of file via-cuda.c.

#define TREQ   0x08 /* Transfer request (input) */

Definition at line 54 of file via-cuda.c.

#define WAIT_FOR	(		cond,
			what
	)

Value:

do {                                                        \
        int x;                          \
    for (x = 1000; !(cond); --x) {              \
        if (x == 0) {                   \
        printk("Timeout waiting for " what "\n");   \
        return -ENXIO;                  \
        }                           \
        udelay(100);                    \
    }                           \
    } while (0)

Definition at line 249 of file via-cuda.c.

Enumeration Type Documentation

enum cuda_state

Enumerator:

idle
sent_first_byte
sending
reading
read_done
awaiting_reply

Definition at line 68 of file via-cuda.c.

Function Documentation

void cuda_poll

(

void

)

Definition at line 433 of file via-cuda.c.

int cuda_request	(	struct adb_request *	req,
		void(*)(struct adb_request *)	done,
		int	nbytes,
			...
	)

Definition at line 362 of file via-cuda.c.

device_initcall

(

via_cuda_start

)

int __init find_via_cuda

(

void

)

Definition at line 144 of file via-cuda.c.