patch-2.1.47 linux/drivers/pnp/parport_procfs.c

• Lines: 340
• Date: Wed Jul 23 11:14:31 1997
• Orig file: v2.1.46/linux/drivers/pnp/parport_procfs.c
• Orig date: Mon Jul 7 08:24:28 1997

diff -u --recursive --new-file v2.1.46/linux/drivers/pnp/parport_procfs.c linux/drivers/pnp/parport_procfs.c
@@ -1,339 +0,0 @@
-/* $Id: parport_procfs.c,v 1.3.2.6 1997/04/16 21:30:38 phil Exp $
- * Parallel port /proc interface code.
- * 
- * Authors: David Campbell <campbell@tirian.che.curtin.edu.au>
- *          Tim Waugh <tmw20@cam.ac.uk>
- *
- * based on work by Grant Guenther <grant@torque.net>
- *              and Philip Blundell <Philip.Blundell@pobox.com>
- */
-
-#include <linux/tasks.h>
-#include <asm/ptrace.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/kernel.h>
-#include <linux/malloc.h>
-#include <linux/interrupt.h>
-
-#include <linux/proc_fs.h>
-
-#include <linux/parport.h>
-#include "parport_ll_io.h"
-
-#undef PARPORT_INCLUDE_BENCH
-
-struct proc_dir_entry *base=NULL;
-
-void parport_null_intr_func(int irq, void *dev_id, struct pt_regs *regs);
-
-static int irq_write_proc(struct file *file, const char *buffer,
-					  unsigned long count, void *data)
-{
-	int newirq;
-	struct parport *pp = (struct parport *)data;
-	
-	if (count > 4 )  /* more than 4 digits for a irq 0x?? 0?? ??  */
-		return(-EOVERFLOW);
-
-	if (buffer[0] < 32 || !strncmp(buffer, "none", 4)) {
-		newirq = PARPORT_IRQ_NONE;
-	} else {
-		if (buffer[0] == '0') {
-			if( buffer[1] == 'x' )
-				newirq = simple_strtoul(&buffer[2],0,16);
-			else
-				newirq = simple_strtoul(&buffer[1],0,8);
-		} else {
-			newirq = simple_strtoul(buffer,0,10);
-		}
-	}
-
-	if (pp->irq != PARPORT_IRQ_NONE && !(pp->flags & PARPORT_FLAG_COMA)) 
-		free_irq(pp->irq, pp);
-
-	pp->irq = newirq;
-
-	if (pp->irq != PARPORT_IRQ_NONE && !(pp->flags & PARPORT_FLAG_COMA)) { 
-		struct ppd *pd = pp->cad;
-
-		if (pd == NULL) {
-			pd = pp->devices;
-			if (pd != NULL) 
-				request_irq(pp->irq, pd->irq_func ? 
-					    pd->irq_func :
-					    parport_null_intr_func,
-					    SA_INTERRUPT, pd->name, pd->port);
-		} else {
-			request_irq(pp->irq, pd->irq_func ? pd->irq_func :
-				    parport_null_intr_func,
-				    SA_INTERRUPT, pp->name, pd->port);
-		}
-	}
-
-	return count;
-}
-
-static int irq_read_proc(char *page, char **start, off_t off,
-					 int count, int *eof, void *data)
-{
-	struct parport *pp = (struct parport *)data;
-	int len;
-	
-	if (pp->irq == PARPORT_IRQ_NONE)
-		len = sprintf(page, "none\n");
-	else
-		len = sprintf(page, "%d\n", pp->irq);
-	
-	*start = 0;
-	*eof   = 1;
-	return len;
-}
-
-static int devices_read_proc(char *page, char **start, off_t off,
-					 int count, int *eof, void *data)
-{
-	struct parport *pp = (struct parport *)data;
-	struct ppd *pd1;
-	int len=0;
-
-	for (pd1 = pp->devices; pd1 ; pd1 = pd1->next) {
-		if (pd1 == pp->cad)
-			len += sprintf(page+len, "+");
-		else
-			len += sprintf(page+len, " ");
-
-		len += sprintf(page+len, "%s",pd1->name);
-
-		if (pd1 == pp->lurker)
-			len += sprintf(page+len, " LURK");
-		
-		len += sprintf(page+len,"\n");
-	}
-		
-	*start = 0;
-	*eof   = 1;
-	return len;
-}
-
-static int hardware_read_proc(char *page, char **start, off_t off,
-							  int count, int *eof, void *data)
-{
-	struct parport *pp = (struct parport *)data;
-	int len=0;
-	
-	len += sprintf(page+len, "base:\t0x%x\n",pp->base);
-	if (pp->irq == PARPORT_IRQ_NONE)
-		len += sprintf(page+len, "irq:\tnone\n");
-	else
-		len += sprintf(page+len, "irq:\t%d\n",pp->irq);
-	len += sprintf(page+len, "dma:\t%d\n",pp->dma);
-
-	len += sprintf(page+len, "modes:\t");
-	{
-#define printmode(x) {if(pp->modes&PARPORT_MODE_##x){len+=sprintf(page+len,"%s%s",f?",":"",#x);f++;}}
-		int f = 0;
-		printmode(SPP);
-		printmode(PS2);
-		printmode(EPP);
-		printmode(ECP);
-		printmode(ECPEPP);
-		printmode(ECPPS2);
-#undef printmode
-	}
-	len += sprintf(page+len, "\n");
-
-	len += sprintf(page+len, "mode:\t");
-	if (pp->modes & PARPORT_MODE_ECR) {
-		switch (r_ecr(pp) >> 5) {
-		case 0:
-			len += sprintf(page+len, "SPP");
-			if( pp->modes & PARPORT_MODE_PS2 )
-				len += sprintf(page+len, ",PS2");
-			if( pp->modes & PARPORT_MODE_EPP )
-				len += sprintf(page+len, ",EPP");
-			break;
-		case 1:
-			len += sprintf(page+len, "ECPPS2");
-			break;
-		case 2:
-			len += sprintf(page+len, "DATAFIFO");
-			break;
-		case 3:
-			len += sprintf(page+len, "ECP");
-			break;
-		case 4:
-			len += sprintf(page+len, "ECPEPP");
-			break;
-		case 5:
-			len += sprintf(page+len, "Reserved?");
-			break;
-		case 6:
-			len += sprintf(page+len, "TEST");
-			break;
-		case 7:
-			len += sprintf(page+len, "Configuration");
-			break;
-		}
-	} else {
-		len += sprintf(page+len, "SPP");
-		if (pp->modes & PARPORT_MODE_PS2)
-			len += sprintf(page+len, ",PS2");
-		if (pp->modes & PARPORT_MODE_EPP)
-			len += sprintf(page+len, ",EPP");
-	}
-	len += sprintf(page+len, "\n");
-	
-#if 0
-	/* Now no detection, please fix with an external function */
-	len += sprintf(page+len, "chipset:\tunknown\n");
-#endif
-#ifdef PARPORT_INCLUDE_BENCHMARK
-	if (pp->speed)
-		len += sprintf(page+len, "bench:\t%d Bytes/s\n",pp->speed);
-	else
-		len += sprintf(page+len, "bench:\tunknown\n");
-#endif	
-
-	*start = 0;
-	*eof   = 1;
-	return len;
-}
-
-static struct proc_dir_entry *new_proc_entry(const char *name, mode_t mode,
-					     struct proc_dir_entry *parent,
-					     unsigned short ino)
-{
-	struct proc_dir_entry *ent;
-
-	ent = kmalloc(sizeof(struct proc_dir_entry), GFP_KERNEL);
-	if (!ent)
-		return NULL;
-	memset(ent, 0, sizeof(struct proc_dir_entry));
-	
-	if (mode == S_IFDIR)
-		mode |= S_IRUGO | S_IXUGO;
-	else if (mode == 0)
-		mode = S_IFREG | S_IRUGO;
-
-
-	ent->low_ino = ino;
-	ent->name = name;
-	ent->namelen = strlen(name);
-	ent->mode = mode;
-	if (S_ISDIR(mode)) 
-		ent->nlink = 2;
-	else
-		ent->nlink = 1;
-
-	proc_register(parent, ent);
-	
-	return ent;
-}
-
-
-int parport_proc_init()
-{
-	base = new_proc_entry("parport", S_IFDIR, &proc_root,PROC_PARPORT);
-
-	if (base)
-		return 1;
-	else {
-		printk(KERN_ERR "parport: Error creating proc entry /proc/parport\n");
-		return 0;
-	}
-}
-
-int parport_proc_cleanup()
-{
-	if (base)
-		proc_unregister(&proc_root,base->low_ino);
-
-	base = NULL;
-	
-	return 0;
-}
-
-int parport_proc_register(struct parport *pp)
-{
-	struct proc_dir_entry *ent;
-	static int conta=0;
-	char *name;
-
-	memset(&pp->pdir,0,sizeof(struct parport_dir));
-
-	if (!base) {
-		printk(KERN_ERR "parport: Error entry /proc/parport, not generated?\n");
-		return 1;
-	}
-	
-	name = pp->pdir.name;
-	sprintf(name,"%d",conta++);
-
-	ent = new_proc_entry(name, S_IFDIR, base,0);
-	if (!ent) {
-		printk(KERN_ERR "parport: Error registering proc_entry /proc/%s\n",name);
-		return 1;
-	}
-	pp->pdir.entry = ent;
-
-	ent = new_proc_entry("irq", S_IFREG | S_IRUGO | S_IWUSR, pp->pdir.entry,0);
-	if (!ent) {
-		printk(KERN_ERR "parport: Error registering proc_entry /proc/%s/irq\n",name);
-		return 1;
-	}
-	ent->read_proc = irq_read_proc;
-	ent->write_proc= irq_write_proc;
-	ent->data      = pp;
-	pp->pdir.irq   = ent;
-	
-	ent = new_proc_entry("devices", 0, pp->pdir.entry,0);
-	if (!ent) {
-		printk(KERN_ERR "parport: Error registering proc_entry /proc/%s/devices\n",name);
-		return 1;
-	}
-	ent->read_proc   = devices_read_proc;
-	ent->data        = pp;
-	pp->pdir.devices = ent;
-	
-	ent = new_proc_entry("hardware", 0, pp->pdir.entry,0);
-	if (!ent) {
-		printk(KERN_ERR "parport: Error registering proc_entry /proc/%s/hardware\n",name);
-		return 1;
-	}
-	ent->read_proc    = hardware_read_proc;
-	ent->data         = pp;
-	pp->pdir.hardware = ent;
-	return 0;
-}
-
-int parport_proc_unregister(struct parport *pp)
-{
-	if (pp->pdir.entry) {
-		if (pp->pdir.irq) {
-			proc_unregister(pp->pdir.entry, pp->pdir.irq->low_ino);
-			kfree(pp->pdir.irq);
-		}
-		
-		if (pp->pdir.devices) {
-			proc_unregister(pp->pdir.entry,
-					pp->pdir.devices->low_ino);
-			kfree(pp->pdir.devices);
-		}
-		
-		if (pp->pdir.hardware) {
-			proc_unregister(pp->pdir.entry,
-					pp->pdir.hardware->low_ino);
-			kfree(pp->pdir.hardware);
-		}
-		
-		proc_unregister(base, pp->pdir.entry->low_ino);
-		kfree(pp->pdir.entry);
-	}
-	
-	return 0;
-}