patch-2.1.37 linux/drivers/char/dsp56k.c

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diff -u --recursive --new-file v2.1.36/linux/drivers/char/dsp56k.c linux/drivers/char/dsp56k.c
@@ -34,6 +34,7 @@
 #include <linux/delay.h>	/* guess what */
 #include <linux/fs.h>
 #include <linux/mm.h>
+#include <linux/init.h>
 
 #include <asm/segment.h>
 #include <asm/atarihw.h>
@@ -529,582 +530,7 @@
 
 static int init_error = 0;
 
-void dsp56k_init(void)
-{
-	if(!ATARIHW_PRESENT(DSP56K)) {
-		init_error = 1;
-		printk("DSP56k driver: Hardware not present\n");
-		return;
-	}
-
-#ifndef MODULE
-	if(register_chrdev(DSP56K_MAJOR, "dsp56k", &dsp56k_fops)) {
-		printk("DSP56k driver: Unable to register driver\n");
-		return;
-	}
-#endif /* !MODULE */
-
-	dsp56k.in_use = 0;
-
-	printk("DSP56k driver installed\n");
-}
-
-#ifdef MODULE
-int init_module(void)
-{
-	int r;
-
-	init_error = 0;
-	dsp56k_init();
-	if(init_error)
-		return -EPERM;
-
-	r = register_chrdev(DSP56K_MAJOR, "dsp56k", &dsp56k_fops);
-	if(r) {
-		printk("DSP56k driver: Unable to register driver\n");
-		return r;
-	}
-	
-	return 0;
-}
-
-void cleanup_module(void)
-{
-	unregister_chrdev(DSP56K_MAJOR, "dsp56k");
-}
-#endif /* MODULE */
-/*
- * The DSP56001 Device Driver, saviour of the Free World(tm)
- *
- * Authors: Fredrik Noring   <noring@lysator.liu.se>
- *          lars brinkhoff   <f93labr@dd.chalmers.se>
- *          Tomas Berndtsson <tobe@lysator.liu.se>
- *
- * First version May 1996
- *
- * History:
- *  97-01-29   Tomas Berndtsson,
- *               Integrated with Linux 2.1.21 kernel sources.
- *  97-02-15   Tomas Berndtsson,
- *               Fixed for kernel 2.1.26
- *
- * BUGS:
- *  Hmm... there must be something here :)
- *
- * Copyright (C) 1996,1997 Fredrik Noring, lars brinkhoff & Tomas Berndtsson
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/version.h>
-#include <linux/malloc.h>	/* for kmalloc() and kfree() */
-#include <linux/sched.h>	/* for struct wait_queue etc */
-#include <linux/major.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/delay.h>	/* guess what */
-#include <linux/fs.h>
-#include <linux/mm.h>
-
-#include <asm/segment.h>
-#include <asm/atarihw.h>
-#include <asm/traps.h>
-#include <asm/uaccess.h>	/* For put_user and get_user */
-
-#include <asm/dsp56k.h>
-
-/* minor devices */
-#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 max(a,b) ((a) > (b) ? (a) : (b))
-#define min(a,b) ((a) < (b) ? (a) : (b))
-
-#define wait_some(n) \
-{ \
-	current->state = TASK_INTERRUPTIBLE; \
-	current->timeout = jiffies + n; \
-	schedule(); \
-}
-
-#define handshake(count, maxio, timeout, ENABLE, f) \
-{ \
-	long i, t, m; \
-	while (count > 0) { \
-		m = min(count, maxio); \
-		for (i = 0; i < m; i++) { \
-			for (t = 0; t < timeout && !ENABLE; t++) \
-				wait_some(2); \
-			if(!ENABLE) \
-				return -EIO; \
-			f; \
-		} \
-		count -= m; \
-		if (m == maxio) wait_some(2); \
-	} \
-}
-
-#define tx_wait(n) \
-{ \
-	int t; \
-	for(t = 0; t < n && !DSP56K_TRANSMIT; t++) \
-		wait_some(1); \
-	if(!DSP56K_TRANSMIT) { \
-		return -EIO; \
-	} \
-}
-
-#define rx_wait(n) \
-{ \
-	int t; \
-	for(t = 0; t < n && !DSP56K_RECEIVE; t++) \
-		wait_some(1); \
-	if(!DSP56K_RECEIVE) { \
-		return -EIO; \
-	} \
-}
-
-/* DSP56001 bootstrap code */
-static char bootstrap[] = {
-	0x0c, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x60, 0xf4, 0x00, 0x00, 0x00, 0x4f, 0x61, 0xf4,
-	0x00, 0x00, 0x7e, 0xa9, 0x06, 0x2e, 0x80, 0x00, 0x00, 0x47,
-	0x07, 0xd8, 0x84, 0x07, 0x59, 0x84, 0x08, 0xf4, 0xa8, 0x00,
-	0x00, 0x04, 0x08, 0xf4, 0xbf, 0x00, 0x0c, 0x00, 0x00, 0xfe,
-	0xb8, 0x0a, 0xf0, 0x80, 0x00, 0x7e, 0xa9, 0x08, 0xf4, 0xa0,
-	0x00, 0x00, 0x01, 0x08, 0xf4, 0xbe, 0x00, 0x00, 0x00, 0x0a,
-	0xa9, 0x80, 0x00, 0x7e, 0xad, 0x08, 0x4e, 0x2b, 0x44, 0xf4,
-	0x00, 0x00, 0x00, 0x03, 0x44, 0xf4, 0x45, 0x00, 0x00, 0x01,
-	0x0e, 0xa0, 0x00, 0x0a, 0xa9, 0x80, 0x00, 0x7e, 0xb5, 0x08,
-	0x50, 0x2b, 0x0a, 0xa9, 0x80, 0x00, 0x7e, 0xb8, 0x08, 0x46,
-	0x2b, 0x44, 0xf4, 0x45, 0x00, 0x00, 0x02, 0x0a, 0xf0, 0xaa,
-	0x00, 0x7e, 0xc9, 0x20, 0x00, 0x45, 0x0a, 0xf0, 0xaa, 0x00,
-	0x7e, 0xd0, 0x06, 0xc6, 0x00, 0x00, 0x7e, 0xc6, 0x0a, 0xa9,
-	0x80, 0x00, 0x7e, 0xc4, 0x08, 0x58, 0x6b, 0x0a, 0xf0, 0x80,
-	0x00, 0x7e, 0xad, 0x06, 0xc6, 0x00, 0x00, 0x7e, 0xcd, 0x0a,
-	0xa9, 0x80, 0x00, 0x7e, 0xcb, 0x08, 0x58, 0xab, 0x0a, 0xf0,
-	0x80, 0x00, 0x7e, 0xad, 0x06, 0xc6, 0x00, 0x00, 0x7e, 0xd4,
-	0x0a, 0xa9, 0x80, 0x00, 0x7e, 0xd2, 0x08, 0x58, 0xeb, 0x0a,
-	0xf0, 0x80, 0x00, 0x7e, 0xad};
-static int sizeof_bootstrap = 375;
-
-
-static struct dsp56k_device {
-	int in_use;
-	long maxio, timeout;
-	int tx_wsize, rx_wsize;
-} dsp56k;
-
-static int dsp56k_reset(void)
-{
-	u_char status;
-	
-	/* Power down the DSP */
-	sound_ym.rd_data_reg_sel = 14;
-	status = sound_ym.rd_data_reg_sel & 0xef;
-	sound_ym.wd_data = status;
-	sound_ym.wd_data = status | 0x10;
-  
-	udelay(10);
-  
-	/* Power up the DSP */
-	sound_ym.rd_data_reg_sel = 14;
-	sound_ym.wd_data = sound_ym.rd_data_reg_sel & 0xef;
-
-	return 0;
-}
-
-static int dsp56k_upload(u_char *bin, int len)
-{
-	int i;
-	u_char *p;
-	
-	dsp56k_reset();
-  
-	p = bootstrap;
-	for (i = 0; i < sizeof_bootstrap/3; i++) {
-		/* tx_wait(10); */
-		dsp56k_host_interface.data.b[1] = *p++;
-		dsp56k_host_interface.data.b[2] = *p++;
-		dsp56k_host_interface.data.b[3] = *p++;
-	}
-	for (; i < 512; i++) {
-		/* tx_wait(10); */
-		dsp56k_host_interface.data.b[1] = 0;
-		dsp56k_host_interface.data.b[2] = 0;
-		dsp56k_host_interface.data.b[3] = 0;
-	}
-  
-	for (i = 0; i < len; i++) {
-		tx_wait(10);
-		get_user(dsp56k_host_interface.data.b[1], bin++);
-		get_user(dsp56k_host_interface.data.b[2], bin++);
-		get_user(dsp56k_host_interface.data.b[3], bin++);
-	}
-
-	tx_wait(10);
-	dsp56k_host_interface.data.l = 3;    /* Magic execute */
-
-	return 0;
-}
-
-static long dsp56k_read(struct inode *inode, struct file *file,
-			char *buf, unsigned long count)
-{
-	int dev = MINOR(inode->i_rdev) & 0x0f;
-
-	switch(dev)
-	{
-	case DSP56K_DEV_56001:
-	{
-
-		long n;
-
-		/* Don't do anything if nothing is to be done */
-		if (!count) return 0;
-
-		n = 0;
-		switch (dsp56k.rx_wsize) {
-		case 1:  /* 8 bit */
-		{
-			handshake(count, dsp56k.maxio, dsp56k.timeout, DSP56K_RECEIVE,
-				  put_user(dsp56k_host_interface.data.b[3], buf+n++));
-			return n;
-		}
-		case 2:  /* 16 bit */
-		{
-			short *data;
-
-			count /= 2;
-			data = (short*) buf;
-			handshake(count, dsp56k.maxio, dsp56k.timeout, DSP56K_RECEIVE,
-				  put_user(dsp56k_host_interface.data.w[1], data+n++));
-			return 2*n;
-		}
-		case 3:  /* 24 bit */
-		{
-			count /= 3;
-			handshake(count, dsp56k.maxio, dsp56k.timeout, DSP56K_RECEIVE,
-				  put_user(dsp56k_host_interface.data.b[1], buf+n++);
-				  put_user(dsp56k_host_interface.data.b[2], buf+n++);
-				  put_user(dsp56k_host_interface.data.b[3], buf+n++));
-			return 3*n;
-		}
-		case 4:  /* 32 bit */
-		{
-			long *data;
-
-			count /= 4;
-			data = (long*) buf;
-			handshake(count, dsp56k.maxio, dsp56k.timeout, DSP56K_RECEIVE,
-				  put_user(dsp56k_host_interface.data.l, data+n++));
-			return 4*n;
-		}
-		}
-		return -EFAULT;
-	}
-
-	default:
-		printk("DSP56k driver: Unknown minor device: %d\n", dev);
-		return -ENXIO;
-	}
-}
-
-static long dsp56k_write(struct inode *inode, struct file *file,
-			 const char *buf, unsigned long count)
-{
-	int dev = MINOR(inode->i_rdev) & 0x0f;
-
-	switch(dev)
-	{
-	case DSP56K_DEV_56001:
-	{
-		long n;
-
-		/* Don't do anything if nothing is to be done */
-		if (!count) return 0;
-
-		n = 0;
-		switch (dsp56k.tx_wsize) {
-		case 1:  /* 8 bit */
-		{
-			handshake(count, dsp56k.maxio, dsp56k.timeout, DSP56K_TRANSMIT,
-				  get_user(dsp56k_host_interface.data.b[3], buf+n++));
-			return n;
-		}
-		case 2:  /* 16 bit */
-		{
-			short *data;
-
-			count /= 2;
-			data = (short*) buf;
-			handshake(count, dsp56k.maxio, dsp56k.timeout, DSP56K_TRANSMIT,
-				  get_user(dsp56k_host_interface.data.w[1], data+n++));
-			return 2*n;
-		}
-		case 3:  /* 24 bit */
-		{
-			count /= 3;
-			handshake(count, dsp56k.maxio, dsp56k.timeout, DSP56K_TRANSMIT,
-				  get_user(dsp56k_host_interface.data.b[1], buf+n++);
-				  get_user(dsp56k_host_interface.data.b[2], buf+n++);
-				  get_user(dsp56k_host_interface.data.b[3], buf+n++));
-			return 3*n;
-		}
-		case 4:  /* 32 bit */
-		{
-			long *data;
-
-			count /= 4;
-			data = (long*) buf;
-			handshake(count, dsp56k.maxio, dsp56k.timeout, DSP56K_TRANSMIT,
-				  get_user(dsp56k_host_interface.data.l, data+n++));
-			return 4*n;
-		}
-		}
-
-		return -EFAULT;
-	}
-	default:
-		printk("DSP56k driver: Unknown minor device: %d\n", dev);
-		return -ENXIO;
-	}
-}
-
-static int dsp56k_ioctl(struct inode *inode, struct file *file,
-			unsigned int cmd, unsigned long arg)
-{
-	int dev = MINOR(inode->i_rdev) & 0x0f;
-
-	switch(dev)
-	{
-	case DSP56K_DEV_56001:
-
-		switch(cmd) {
-		case DSP56K_UPLOAD:
-		{
-			char *bin;
-			int r, len;
-			struct dsp56k_upload *binary = (struct dsp56k_upload *) arg;
-    
-			if(get_user(len, &binary->len) < 0)
-				return -EFAULT;
-			if(get_user(bin, &binary->bin) < 0)
-				return -EFAULT;
-		
-			if (len == 0) {
-				return -EINVAL;      /* nothing to upload?!? */
-			}
-			if (len > DSP56K_MAX_BINARY_LENGTH) {
-				return -EINVAL;
-			}
-    
-			r = dsp56k_upload(bin, len);
-			if (r < 0) {
-				return r;
-			}
-    
-			break;
-		}
-		case DSP56K_SET_TX_WSIZE:
-			if (arg > 4 || arg < 1)
-				return -EINVAL;
-			dsp56k.tx_wsize = (int) arg;
-			break;
-		case DSP56K_SET_RX_WSIZE:
-			if (arg > 4 || arg < 1)
-				return -EINVAL;
-			dsp56k.rx_wsize = (int) arg;
-			break;
-		case DSP56K_HOST_FLAGS:
-		{
-			int dir, out, status;
-			struct dsp56k_host_flags *hf = (struct dsp56k_host_flags*) arg;
-    
-			if(get_user(dir, &hf->dir) < 0)
-				return -EFAULT;
-			if(get_user(out, &hf->out) < 0)
-				return -EFAULT;
-
-			if ((dir & 0x1) && (out & 0x1))
-				dsp56k_host_interface.icr |= DSP56K_ICR_HF0;
-			else if (dir & 0x1)
-				dsp56k_host_interface.icr &= ~DSP56K_ICR_HF0;
-			if ((dir & 0x2) && (out & 0x2))
-				dsp56k_host_interface.icr |= DSP56K_ICR_HF1;
-			else if (dir & 0x2)
-				dsp56k_host_interface.icr &= ~DSP56K_ICR_HF1;
-
-			status = 0;
-			if (dsp56k_host_interface.icr & DSP56K_ICR_HF0) status |= 0x1;
-			if (dsp56k_host_interface.icr & DSP56K_ICR_HF1) status |= 0x2;
-			if (dsp56k_host_interface.isr & DSP56K_ISR_HF2) status |= 0x4;
-			if (dsp56k_host_interface.isr & DSP56K_ISR_HF3) status |= 0x8;
-
-			if(put_user(status, &hf->status) < 0)
-				return -EFAULT;
-			break;
-		}
-		case DSP56K_HOST_CMD:
-			if (arg > 31 || arg < 0)
-				return -EINVAL;
-			dsp56k_host_interface.cvr = (u_char)((arg & DSP56K_CVR_HV_MASK) |
-							     DSP56K_CVR_HC);
-			break;
-		default:
-			return -EINVAL;
-		}
-		return 0;
-
-	default:
-		printk("DSP56k driver: Unknown minor device: %d\n", dev);
-		return -ENXIO;
-	}
-}
-
-/* As of 2.1.26 this should be dsp56k_poll,
- * but how do I then check device minor number?
- * Do I need this function at all???
- */
-#ifdef 0
-static int dsp56k_select(struct inode *inode, struct file *file, int sel_type,
-			 select_table *wait)
-{
-	int dev = MINOR(inode->i_rdev) & 0x0f;
-
-	switch(dev)
-	{
-	case DSP56K_DEV_56001:
-
-		switch(sel_type) {
-		case SEL_IN:		/* read */
-			return 1;
-		case SEL_OUT:		/* write */
-			return 1;
-		default:
-			return 1;
-		}
-
-	default:
-		printk("DSP56k driver: Unknown minor device: %d\n", dev);
-		return -ENXIO;
-	}
-}
-#endif
-
-static int dsp56k_open(struct inode *inode, struct file *file)
-{
-	int dev = MINOR(inode->i_rdev) & 0x0f;
-
-	switch(dev)
-	{
-	case DSP56K_DEV_56001:
-
-		if (dsp56k.in_use)
-			return -EBUSY;
-
-		dsp56k.in_use = 1;
-		dsp56k.timeout = TIMEOUT;
-		dsp56k.maxio = MAXIO;
-		dsp56k.rx_wsize = dsp56k.tx_wsize = 4; 
-
-		DSP56K_TX_INT_OFF;
-		DSP56K_RX_INT_OFF;
-
-		/* Zero host flags */
-		dsp56k_host_interface.icr &= ~DSP56K_ICR_HF0;
-		dsp56k_host_interface.icr &= ~DSP56K_ICR_HF1;
-
-		break;
-
-	default:
-		printk("DSP56k driver: Unknown minor device: %d\n", dev);
-		return -ENXIO;
-	}
-
-#ifdef MODULE
-	MOD_INC_USE_COUNT;
-#endif /* MODULE */
-
-	return 0;
-}
-
-static void dsp56k_release(struct inode *inode, struct file *file)
-{
-	int dev = MINOR(inode->i_rdev) & 0x0f;
-
-	switch(dev)
-	{
-	case DSP56K_DEV_56001:
-
-		dsp56k.in_use = 0;
-
-		break;
-	default:
-		printk("DSP56k driver: Unknown minor device: %d\n", dev);
-		return;
-	}
-
-#ifdef MODULE
-	MOD_DEC_USE_COUNT;
-#endif /* MODULE */
-}
-
-static struct file_operations dsp56k_fops = {
-	NULL,    /* no special dsp56k_lseek */
-	dsp56k_read,
-	dsp56k_write,
-	NULL,    /* no special dsp56k_readdir */
-	NULL,    /* dsp56k_poll? */
-	dsp56k_ioctl,
-	NULL,    /* no special dsp56k_mmap */
-	dsp56k_open,
-	dsp56k_release,
-	NULL,    /* no special dsp56k_fsync */
-	NULL,    /* no special dsp56k_fasync */
-	NULL,    /* no special dsp56k_check_media_change */
-	NULL     /* no special dsp56k_revalidate */
-};
-
-
-/****** Init and module functions ******/
-
-static int init_error = 0;
-
-void dsp56k_init(void)
+__initfunc(void dsp56k_init(void))
 {
 	if(!ATARIHW_PRESENT(DSP56K)) {
 		init_error = 1;

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