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Diffstat (limited to 'drivers/net/wan/cosa.c')
-rw-r--r--drivers/net/wan/cosa.c603
1 files changed, 286 insertions, 317 deletions
diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index 1d706eae305..83c39e2858b 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -2,6 +2,7 @@
/*
* Copyright (C) 1995-1997 Jan "Yenya" Kasprzak <kas@fi.muni.cz>
+ * Generic HDLC port Copyright (C) 2008 Krzysztof Halasa <khc@pm.waw.pl>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -54,7 +55,7 @@
*
* The Linux driver (unlike the present *BSD drivers :-) can work even
* for the COSA and SRP in one computer and allows each channel to work
- * in one of the three modes (character device, Cisco HDLC, Sync PPP).
+ * in one of the two modes (character or network device).
*
* AUTHOR
*
@@ -72,33 +73,30 @@
* The Comtrol Hostess SV11 driver by Alan Cox
* The Sync PPP/Cisco HDLC layer (syncppp.c) ported to Linux by Alan Cox
*/
-/*
- * 5/25/1999 : Marcelo Tosatti <marcelo@conectiva.com.br>
- * fixed a deadlock in cosa_sppp_open
- */
-
-/* ---------- Headers, macros, data structures ---------- */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/kernel.h>
+#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/fs.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
+#include <linux/hdlc.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/netdevice.h>
#include <linux/spinlock.h>
+#include <linux/mutex.h>
#include <linux/device.h>
-
-#undef COSA_SLOW_IO /* for testing purposes only */
-
#include <asm/io.h>
#include <asm/dma.h>
#include <asm/byteorder.h>
-#include <net/syncppp.h>
+#undef COSA_SLOW_IO /* for testing purposes only */
+
#include "cosa.h"
/* Maximum length of the identification string. */
@@ -110,7 +108,6 @@
/* Per-channel data structure */
struct channel_data {
- void *if_ptr; /* General purpose pointer (used by SPPP) */
int usage; /* Usage count; >0 for chrdev, -1 for netdev */
int num; /* Number of the channel */
struct cosa_data *cosa; /* Pointer to the per-card structure */
@@ -127,16 +124,16 @@ struct channel_data {
int (*tx_done)(struct channel_data *channel, int size);
/* Character device parts */
- struct semaphore rsem, wsem;
+ struct mutex rlock;
+ struct semaphore wsem;
char *rxdata;
int rxsize;
wait_queue_head_t txwaitq, rxwaitq;
int tx_status, rx_status;
- /* SPPP/HDLC device parts */
- struct ppp_device pppdev;
+ /* generic HDLC device parts */
+ struct net_device *netdev;
struct sk_buff *rx_skb, *tx_skb;
- struct net_device_stats stats;
};
/* cosa->firmware_status bits */
@@ -178,6 +175,7 @@ struct cosa_data {
* Character device major number. 117 was allocated for us.
* The value of 0 means to allocate a first free one.
*/
+static DEFINE_MUTEX(cosa_chardev_mutex);
static int cosa_major = 117;
/*
@@ -278,21 +276,19 @@ static int cosa_start_tx(struct channel_data *channel, char *buf, int size);
static void cosa_kick(struct cosa_data *cosa);
static int cosa_dma_able(struct channel_data *chan, char *buf, int data);
-/* SPPP/HDLC stuff */
-static void sppp_channel_init(struct channel_data *chan);
-static void sppp_channel_delete(struct channel_data *chan);
-static int cosa_sppp_open(struct net_device *d);
-static int cosa_sppp_close(struct net_device *d);
-static void cosa_sppp_timeout(struct net_device *d);
-static int cosa_sppp_tx(struct sk_buff *skb, struct net_device *d);
-static char *sppp_setup_rx(struct channel_data *channel, int size);
-static int sppp_rx_done(struct channel_data *channel);
-static int sppp_tx_done(struct channel_data *channel, int size);
-static int cosa_sppp_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
-static struct net_device_stats *cosa_net_stats(struct net_device *dev);
+/* Network device stuff */
+static int cosa_net_attach(struct net_device *dev, unsigned short encoding,
+ unsigned short parity);
+static int cosa_net_open(struct net_device *d);
+static int cosa_net_close(struct net_device *d);
+static void cosa_net_timeout(struct net_device *d);
+static netdev_tx_t cosa_net_tx(struct sk_buff *skb, struct net_device *d);
+static char *cosa_net_setup_rx(struct channel_data *channel, int size);
+static int cosa_net_rx_done(struct channel_data *channel);
+static int cosa_net_tx_done(struct channel_data *channel, int size);
+static int cosa_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
/* Character device */
-static void chardev_channel_init(struct channel_data *chan);
static char *chrdev_setup_rx(struct channel_data *channel, int size);
static int chrdev_rx_done(struct channel_data *channel);
static int chrdev_tx_done(struct channel_data *channel, int size);
@@ -303,8 +299,8 @@ static ssize_t cosa_write(struct file *file,
static unsigned int cosa_poll(struct file *file, poll_table *poll);
static int cosa_open(struct inode *inode, struct file *file);
static int cosa_release(struct inode *inode, struct file *file);
-static int cosa_chardev_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg);
+static long cosa_chardev_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg);
#ifdef COSA_FASYNC_WORKING
static int cosa_fasync(struct inode *inode, struct file *file, int on);
#endif
@@ -315,7 +311,7 @@ static const struct file_operations cosa_fops = {
.read = cosa_read,
.write = cosa_write,
.poll = cosa_poll,
- .ioctl = cosa_chardev_ioctl,
+ .unlocked_ioctl = cosa_chardev_ioctl,
.open = cosa_open,
.release = cosa_release,
#ifdef COSA_FASYNC_WORKING
@@ -335,7 +331,7 @@ static int startmicrocode(struct cosa_data *cosa, int address);
static int readmem(struct cosa_data *cosa, char __user *data, int addr, int len);
static int cosa_reset_and_read_id(struct cosa_data *cosa, char *id);
-/* Auxilliary functions */
+/* Auxiliary functions */
static int get_wait_data(struct cosa_data *cosa);
static int put_wait_data(struct cosa_data *cosa, int data);
static int puthexnumber(struct cosa_data *cosa, int number);
@@ -354,27 +350,26 @@ static void debug_status_in(struct cosa_data *cosa, int status);
static void debug_status_out(struct cosa_data *cosa, int status);
#endif
-
+static inline struct channel_data* dev_to_chan(struct net_device *dev)
+{
+ return (struct channel_data *)dev_to_hdlc(dev)->priv;
+}
+
/* ---------- Initialization stuff ---------- */
static int __init cosa_init(void)
{
int i, err = 0;
- printk(KERN_INFO "cosa v1.08 (c) 1997-2000 Jan Kasprzak <kas@fi.muni.cz>\n");
-#ifdef CONFIG_SMP
- printk(KERN_INFO "cosa: SMP found. Please mail any success/failure reports to the author.\n");
-#endif
if (cosa_major > 0) {
if (register_chrdev(cosa_major, "cosa", &cosa_fops)) {
- printk(KERN_WARNING "cosa: unable to get major %d\n",
- cosa_major);
+ pr_warn("unable to get major %d\n", cosa_major);
err = -EIO;
goto out;
}
} else {
if (!(cosa_major=register_chrdev(0, "cosa", &cosa_fops))) {
- printk(KERN_WARNING "cosa: unable to register chardev\n");
+ pr_warn("unable to register chardev\n");
err = -EIO;
goto out;
}
@@ -384,7 +379,7 @@ static int __init cosa_init(void)
for (i=0; io[i] != 0 && i < MAX_CARDS; i++)
cosa_probe(io[i], irq[i], dma[i]);
if (!nr_cards) {
- printk(KERN_WARNING "cosa: no devices found.\n");
+ pr_warn("no devices found\n");
unregister_chrdev(cosa_major, "cosa");
err = -ENODEV;
goto out;
@@ -394,12 +389,12 @@ static int __init cosa_init(void)
err = PTR_ERR(cosa_class);
goto out_chrdev;
}
- for (i=0; i<nr_cards; i++) {
- device_create(cosa_class, NULL, MKDEV(cosa_major, i), "cosa%d", i);
- }
+ for (i = 0; i < nr_cards; i++)
+ device_create(cosa_class, NULL, MKDEV(cosa_major, i), NULL,
+ "cosa%d", i);
err = 0;
goto out;
-
+
out_chrdev:
unregister_chrdev(cosa_major, "cosa");
out:
@@ -411,43 +406,38 @@ static void __exit cosa_exit(void)
{
struct cosa_data *cosa;
int i;
- printk(KERN_INFO "Unloading the cosa module\n");
- for (i=0; i<nr_cards; i++)
+ for (i = 0; i < nr_cards; i++)
device_destroy(cosa_class, MKDEV(cosa_major, i));
class_destroy(cosa_class);
- for (cosa=cosa_cards; nr_cards--; cosa++) {
+
+ for (cosa = cosa_cards; nr_cards--; cosa++) {
/* Clean up the per-channel data */
- for (i=0; i<cosa->nchannels; i++) {
+ for (i = 0; i < cosa->nchannels; i++) {
/* Chardev driver has no alloc'd per-channel data */
- sppp_channel_delete(cosa->chan+i);
+ unregister_hdlc_device(cosa->chan[i].netdev);
+ free_netdev(cosa->chan[i].netdev);
}
/* Clean up the per-card data */
kfree(cosa->chan);
kfree(cosa->bouncebuf);
free_irq(cosa->irq, cosa);
free_dma(cosa->dma);
- release_region(cosa->datareg,is_8bit(cosa)?2:4);
+ release_region(cosa->datareg, is_8bit(cosa) ? 2 : 4);
}
unregister_chrdev(cosa_major, "cosa");
}
module_exit(cosa_exit);
-/*
- * This function should register all the net devices needed for the
- * single channel.
- */
-static __inline__ void channel_init(struct channel_data *chan)
-{
- sprintf(chan->name, "cosa%dc%d", chan->cosa->num, chan->num);
-
- /* Initialize the chardev data structures */
- chardev_channel_init(chan);
+static const struct net_device_ops cosa_ops = {
+ .ndo_open = cosa_net_open,
+ .ndo_stop = cosa_net_close,
+ .ndo_change_mtu = hdlc_change_mtu,
+ .ndo_start_xmit = hdlc_start_xmit,
+ .ndo_do_ioctl = cosa_net_ioctl,
+ .ndo_tx_timeout = cosa_net_timeout,
+};
- /* Register the sppp interface */
- sppp_channel_init(chan);
-}
-
static int cosa_probe(int base, int irq, int dma)
{
struct cosa_data *cosa = cosa_cards+nr_cards;
@@ -458,26 +448,25 @@ static int cosa_probe(int base, int irq, int dma)
/* Checking validity of parameters: */
/* IRQ should be 2-7 or 10-15; negative IRQ means autoprobe */
if ((irq >= 0 && irq < 2) || irq > 15 || (irq < 10 && irq > 7)) {
- printk (KERN_INFO "cosa_probe: invalid IRQ %d\n", irq);
+ pr_info("invalid IRQ %d\n", irq);
return -1;
}
/* I/O address should be between 0x100 and 0x3ff and should be
* multiple of 8. */
if (base < 0x100 || base > 0x3ff || base & 0x7) {
- printk (KERN_INFO "cosa_probe: invalid I/O address 0x%x\n",
- base);
+ pr_info("invalid I/O address 0x%x\n", base);
return -1;
}
/* DMA should be 0,1 or 3-7 */
if (dma < 0 || dma == 4 || dma > 7) {
- printk (KERN_INFO "cosa_probe: invalid DMA %d\n", dma);
+ pr_info("invalid DMA %d\n", dma);
return -1;
}
/* and finally, on 16-bit COSA DMA should be 4-7 and
* I/O base should not be multiple of 0x10 */
if (((base & 0x8) && dma < 4) || (!(base & 0x8) && dma > 3)) {
- printk (KERN_INFO "cosa_probe: 8/16 bit base and DMA mismatch"
- " (base=0x%x, dma=%d)\n", base, dma);
+ pr_info("8/16 bit base and DMA mismatch (base=0x%x, dma=%d)\n",
+ base, dma);
return -1;
}
@@ -490,7 +479,7 @@ static int cosa_probe(int base, int irq, int dma)
return -1;
if (cosa_reset_and_read_id(cosa, cosa->id_string) < 0) {
- printk(KERN_DEBUG "cosa: probe at 0x%x failed.\n", base);
+ printk(KERN_DEBUG "probe at 0x%x failed.\n", base);
err = -1;
goto err_out;
}
@@ -503,8 +492,7 @@ static int cosa_probe(int base, int irq, int dma)
else {
/* Print a warning only if we are not autoprobing */
#ifndef COSA_ISA_AUTOPROBE
- printk(KERN_INFO "cosa: valid signature not found at 0x%x.\n",
- base);
+ pr_info("valid signature not found at 0x%x\n", base);
#endif
err = -1;
goto err_out;
@@ -512,14 +500,14 @@ static int cosa_probe(int base, int irq, int dma)
/* Update the name of the region now we know the type of card */
release_region(base, is_8bit(cosa)?2:4);
if (!request_region(base, is_8bit(cosa)?2:4, cosa->type)) {
- printk(KERN_DEBUG "cosa: changing name at 0x%x failed.\n", base);
+ printk(KERN_DEBUG "changing name at 0x%x failed.\n", base);
return -1;
}
/* Now do IRQ autoprobe */
if (irq < 0) {
unsigned long irqs;
-/* printk(KERN_INFO "IRQ autoprobe\n"); */
+/* pr_info("IRQ autoprobe\n"); */
irqs = probe_irq_on();
/*
* Enable interrupt on tx buffer empty (it sure is)
@@ -537,13 +525,13 @@ static int cosa_probe(int base, int irq, int dma)
cosa_getdata8(cosa);
if (irq < 0) {
- printk (KERN_INFO "cosa IRQ autoprobe: multiple interrupts obtained (%d, board at 0x%x)\n",
+ pr_info("multiple interrupts obtained (%d, board at 0x%x)\n",
irq, cosa->datareg);
err = -1;
goto err_out;
}
if (irq == 0) {
- printk (KERN_INFO "cosa IRQ autoprobe: no interrupt obtained (board at 0x%x)\n",
+ pr_info("no interrupt obtained (board at 0x%x)\n",
cosa->datareg);
/* return -1; */
}
@@ -573,140 +561,137 @@ static int cosa_probe(int base, int irq, int dma)
/* Initialize the per-channel data */
cosa->chan = kcalloc(cosa->nchannels, sizeof(struct channel_data), GFP_KERNEL);
if (!cosa->chan) {
- err = -ENOMEM;
+ err = -ENOMEM;
goto err_out3;
}
- for (i=0; i<cosa->nchannels; i++) {
- cosa->chan[i].cosa = cosa;
- cosa->chan[i].num = i;
- channel_init(cosa->chan+i);
+
+ for (i = 0; i < cosa->nchannels; i++) {
+ struct channel_data *chan = &cosa->chan[i];
+
+ chan->cosa = cosa;
+ chan->num = i;
+ sprintf(chan->name, "cosa%dc%d", chan->cosa->num, i);
+
+ /* Initialize the chardev data structures */
+ mutex_init(&chan->rlock);
+ sema_init(&chan->wsem, 1);
+
+ /* Register the network interface */
+ if (!(chan->netdev = alloc_hdlcdev(chan))) {
+ pr_warn("%s: alloc_hdlcdev failed\n", chan->name);
+ goto err_hdlcdev;
+ }
+ dev_to_hdlc(chan->netdev)->attach = cosa_net_attach;
+ dev_to_hdlc(chan->netdev)->xmit = cosa_net_tx;
+ chan->netdev->netdev_ops = &cosa_ops;
+ chan->netdev->watchdog_timeo = TX_TIMEOUT;
+ chan->netdev->base_addr = chan->cosa->datareg;
+ chan->netdev->irq = chan->cosa->irq;
+ chan->netdev->dma = chan->cosa->dma;
+ if (register_hdlc_device(chan->netdev)) {
+ netdev_warn(chan->netdev,
+ "register_hdlc_device() failed\n");
+ free_netdev(chan->netdev);
+ goto err_hdlcdev;
+ }
}
- printk (KERN_INFO "cosa%d: %s (%s at 0x%x irq %d dma %d), %d channels\n",
+ pr_info("cosa%d: %s (%s at 0x%x irq %d dma %d), %d channels\n",
cosa->num, cosa->id_string, cosa->type,
cosa->datareg, cosa->irq, cosa->dma, cosa->nchannels);
return nr_cards++;
+
+err_hdlcdev:
+ while (i-- > 0) {
+ unregister_hdlc_device(cosa->chan[i].netdev);
+ free_netdev(cosa->chan[i].netdev);
+ }
+ kfree(cosa->chan);
err_out3:
kfree(cosa->bouncebuf);
err_out2:
free_dma(cosa->dma);
err_out1:
free_irq(cosa->irq, cosa);
-err_out:
+err_out:
release_region(cosa->datareg,is_8bit(cosa)?2:4);
- printk(KERN_NOTICE "cosa%d: allocating resources failed\n",
- cosa->num);
+ pr_notice("cosa%d: allocating resources failed\n", cosa->num);
return err;
}
-/*---------- SPPP/HDLC netdevice ---------- */
-
-static void cosa_setup(struct net_device *d)
-{
- d->open = cosa_sppp_open;
- d->stop = cosa_sppp_close;
- d->hard_start_xmit = cosa_sppp_tx;
- d->do_ioctl = cosa_sppp_ioctl;
- d->get_stats = cosa_net_stats;
- d->tx_timeout = cosa_sppp_timeout;
- d->watchdog_timeo = TX_TIMEOUT;
-}
+/*---------- network device ---------- */
-static void sppp_channel_init(struct channel_data *chan)
+static int cosa_net_attach(struct net_device *dev, unsigned short encoding,
+ unsigned short parity)
{
- struct net_device *d;
- chan->if_ptr = &chan->pppdev;
- d = alloc_netdev(0, chan->name, cosa_setup);
- if (!d) {
- printk(KERN_WARNING "%s: alloc_netdev failed.\n", chan->name);
- return;
- }
- chan->pppdev.dev = d;
- d->base_addr = chan->cosa->datareg;
- d->irq = chan->cosa->irq;
- d->dma = chan->cosa->dma;
- d->priv = chan;
- sppp_attach(&chan->pppdev);
- if (register_netdev(d)) {
- printk(KERN_WARNING "%s: register_netdev failed.\n", d->name);
- sppp_detach(d);
- free_netdev(d);
- chan->pppdev.dev = NULL;
- return;
- }
-}
-
-static void sppp_channel_delete(struct channel_data *chan)
-{
- unregister_netdev(chan->pppdev.dev);
- sppp_detach(chan->pppdev.dev);
- free_netdev(chan->pppdev.dev);
- chan->pppdev.dev = NULL;
+ if (encoding == ENCODING_NRZ && parity == PARITY_CRC16_PR1_CCITT)
+ return 0;
+ return -EINVAL;
}
-static int cosa_sppp_open(struct net_device *d)
+static int cosa_net_open(struct net_device *dev)
{
- struct channel_data *chan = d->priv;
+ struct channel_data *chan = dev_to_chan(dev);
int err;
unsigned long flags;
if (!(chan->cosa->firmware_status & COSA_FW_START)) {
- printk(KERN_NOTICE "%s: start the firmware first (status %d)\n",
- chan->cosa->name, chan->cosa->firmware_status);
+ pr_notice("%s: start the firmware first (status %d)\n",
+ chan->cosa->name, chan->cosa->firmware_status);
return -EPERM;
}
spin_lock_irqsave(&chan->cosa->lock, flags);
if (chan->usage != 0) {
- printk(KERN_WARNING "%s: sppp_open called with usage count %d\n",
+ pr_warn("%s: cosa_net_open called with usage count %d\n",
chan->name, chan->usage);
spin_unlock_irqrestore(&chan->cosa->lock, flags);
return -EBUSY;
}
- chan->setup_rx = sppp_setup_rx;
- chan->tx_done = sppp_tx_done;
- chan->rx_done = sppp_rx_done;
- chan->usage=-1;
+ chan->setup_rx = cosa_net_setup_rx;
+ chan->tx_done = cosa_net_tx_done;
+ chan->rx_done = cosa_net_rx_done;
+ chan->usage = -1;
chan->cosa->usage++;
spin_unlock_irqrestore(&chan->cosa->lock, flags);
- err = sppp_open(d);
+ err = hdlc_open(dev);
if (err) {
spin_lock_irqsave(&chan->cosa->lock, flags);
- chan->usage=0;
+ chan->usage = 0;
chan->cosa->usage--;
-
spin_unlock_irqrestore(&chan->cosa->lock, flags);
return err;
}
- netif_start_queue(d);
+ netif_start_queue(dev);
cosa_enable_rx(chan);
return 0;
}
-static int cosa_sppp_tx(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t cosa_net_tx(struct sk_buff *skb,
+ struct net_device *dev)
{
- struct channel_data *chan = dev->priv;
+ struct channel_data *chan = dev_to_chan(dev);
netif_stop_queue(dev);
chan->tx_skb = skb;
cosa_start_tx(chan, skb->data, skb->len);
- return 0;
+ return NETDEV_TX_OK;
}
-static void cosa_sppp_timeout(struct net_device *dev)
+static void cosa_net_timeout(struct net_device *dev)
{
- struct channel_data *chan = dev->priv;
+ struct channel_data *chan = dev_to_chan(dev);
if (test_bit(RXBIT, &chan->cosa->rxtx)) {
- chan->stats.rx_errors++;
- chan->stats.rx_missed_errors++;
+ chan->netdev->stats.rx_errors++;
+ chan->netdev->stats.rx_missed_errors++;
} else {
- chan->stats.tx_errors++;
- chan->stats.tx_aborted_errors++;
+ chan->netdev->stats.tx_errors++;
+ chan->netdev->stats.tx_aborted_errors++;
}
cosa_kick(chan->cosa);
if (chan->tx_skb) {
@@ -716,13 +701,13 @@ static void cosa_sppp_timeout(struct net_device *dev)
netif_wake_queue(dev);
}
-static int cosa_sppp_close(struct net_device *d)
+static int cosa_net_close(struct net_device *dev)
{
- struct channel_data *chan = d->priv;
+ struct channel_data *chan = dev_to_chan(dev);
unsigned long flags;
- netif_stop_queue(d);
- sppp_close(d);
+ netif_stop_queue(dev);
+ hdlc_close(dev);
cosa_disable_rx(chan);
spin_lock_irqsave(&chan->cosa->lock, flags);
if (chan->rx_skb) {
@@ -733,84 +718,66 @@ static int cosa_sppp_close(struct net_device *d)
kfree_skb(chan->tx_skb);
chan->tx_skb = NULL;
}
- chan->usage=0;
+ chan->usage = 0;
chan->cosa->usage--;
spin_unlock_irqrestore(&chan->cosa->lock, flags);
return 0;
}
-static char *sppp_setup_rx(struct channel_data *chan, int size)
+static char *cosa_net_setup_rx(struct channel_data *chan, int size)
{
/*
* We can safely fall back to non-dma-able memory, because we have
* the cosa->bouncebuf pre-allocated.
*/
- if (chan->rx_skb)
- kfree_skb(chan->rx_skb);
+ kfree_skb(chan->rx_skb);
chan->rx_skb = dev_alloc_skb(size);
if (chan->rx_skb == NULL) {
- printk(KERN_NOTICE "%s: Memory squeeze, dropping packet\n",
- chan->name);
- chan->stats.rx_dropped++;
+ pr_notice("%s: Memory squeeze, dropping packet\n", chan->name);
+ chan->netdev->stats.rx_dropped++;
return NULL;
}
- chan->pppdev.dev->trans_start = jiffies;
+ chan->netdev->trans_start = jiffies;
return skb_put(chan->rx_skb, size);
}
-static int sppp_rx_done(struct channel_data *chan)
+static int cosa_net_rx_done(struct channel_data *chan)
{
if (!chan->rx_skb) {
- printk(KERN_WARNING "%s: rx_done with empty skb!\n",
- chan->name);
- chan->stats.rx_errors++;
- chan->stats.rx_frame_errors++;
+ pr_warn("%s: rx_done with empty skb!\n", chan->name);
+ chan->netdev->stats.rx_errors++;
+ chan->netdev->stats.rx_frame_errors++;
return 0;
}
- chan->rx_skb->protocol = htons(ETH_P_WAN_PPP);
- chan->rx_skb->dev = chan->pppdev.dev;
+ chan->rx_skb->protocol = hdlc_type_trans(chan->rx_skb, chan->netdev);
+ chan->rx_skb->dev = chan->netdev;
skb_reset_mac_header(chan->rx_skb);
- chan->stats.rx_packets++;
- chan->stats.rx_bytes += chan->cosa->rxsize;
+ chan->netdev->stats.rx_packets++;
+ chan->netdev->stats.rx_bytes += chan->cosa->rxsize;
netif_rx(chan->rx_skb);
chan->rx_skb = NULL;
- chan->pppdev.dev->last_rx = jiffies;
return 0;
}
/* ARGSUSED */
-static int sppp_tx_done(struct channel_data *chan, int size)
+static int cosa_net_tx_done(struct channel_data *chan, int size)
{
if (!chan->tx_skb) {
- printk(KERN_WARNING "%s: tx_done with empty skb!\n",
- chan->name);
- chan->stats.tx_errors++;
- chan->stats.tx_aborted_errors++;
+ pr_warn("%s: tx_done with empty skb!\n", chan->name);
+ chan->netdev->stats.tx_errors++;
+ chan->netdev->stats.tx_aborted_errors++;
return 1;
}
dev_kfree_skb_irq(chan->tx_skb);
chan->tx_skb = NULL;
- chan->stats.tx_packets++;
- chan->stats.tx_bytes += size;
- netif_wake_queue(chan->pppdev.dev);
+ chan->netdev->stats.tx_packets++;
+ chan->netdev->stats.tx_bytes += size;
+ netif_wake_queue(chan->netdev);
return 1;
}
-static struct net_device_stats *cosa_net_stats(struct net_device *dev)
-{
- struct channel_data *chan = dev->priv;
- return &chan->stats;
-}
-
-
/*---------- Character device ---------- */
-static void chardev_channel_init(struct channel_data *chan)
-{
- init_MUTEX(&chan->rsem);
- init_MUTEX(&chan->wsem);
-}
-
static ssize_t cosa_read(struct file *file,
char __user *buf, size_t count, loff_t *ppos)
{
@@ -821,16 +788,16 @@ static ssize_t cosa_read(struct file *file,
char *kbuf;
if (!(cosa->firmware_status & COSA_FW_START)) {
- printk(KERN_NOTICE "%s: start the firmware first (status %d)\n",
- cosa->name, cosa->firmware_status);
+ pr_notice("%s: start the firmware first (status %d)\n",
+ cosa->name, cosa->firmware_status);
return -EPERM;
}
- if (down_interruptible(&chan->rsem))
+ if (mutex_lock_interruptible(&chan->rlock))
return -ERESTARTSYS;
- if ((chan->rxdata = kmalloc(COSA_MTU, GFP_DMA|GFP_KERNEL)) == NULL) {
- printk(KERN_INFO "%s: cosa_read() - OOM\n", cosa->name);
- up(&chan->rsem);
+ chan->rxdata = kmalloc(COSA_MTU, GFP_DMA|GFP_KERNEL);
+ if (chan->rxdata == NULL) {
+ mutex_unlock(&chan->rlock);
return -ENOMEM;
}
@@ -838,7 +805,7 @@ static ssize_t cosa_read(struct file *file,
cosa_enable_rx(chan);
spin_lock_irqsave(&cosa->lock, flags);
add_wait_queue(&chan->rxwaitq, &wait);
- while(!chan->rx_status) {
+ while (!chan->rx_status) {
current->state = TASK_INTERRUPTIBLE;
spin_unlock_irqrestore(&cosa->lock, flags);
schedule();
@@ -848,7 +815,7 @@ static ssize_t cosa_read(struct file *file,
remove_wait_queue(&chan->rxwaitq, &wait);
current->state = TASK_RUNNING;
spin_unlock_irqrestore(&cosa->lock, flags);
- up(&chan->rsem);
+ mutex_unlock(&chan->rlock);
return -ERESTARTSYS;
}
}
@@ -857,7 +824,7 @@ static ssize_t cosa_read(struct file *file,
kbuf = chan->rxdata;
count = chan->rxsize;
spin_unlock_irqrestore(&cosa->lock, flags);
- up(&chan->rsem);
+ mutex_unlock(&chan->rlock);
if (copy_to_user(buf, kbuf, count)) {
kfree(kbuf);
@@ -896,8 +863,8 @@ static ssize_t cosa_write(struct file *file,
char *kbuf;
if (!(cosa->firmware_status & COSA_FW_START)) {
- printk(KERN_NOTICE "%s: start the firmware first (status %d)\n",
- cosa->name, cosa->firmware_status);
+ pr_notice("%s: start the firmware first (status %d)\n",
+ cosa->name, cosa->firmware_status);
return -EPERM;
}
if (down_interruptible(&chan->wsem))
@@ -907,9 +874,8 @@ static ssize_t cosa_write(struct file *file,
count = COSA_MTU;
/* Allocate the buffer */
- if ((kbuf = kmalloc(count, GFP_KERNEL|GFP_DMA)) == NULL) {
- printk(KERN_NOTICE "%s: cosa_write() OOM - dropping packet\n",
- cosa->name);
+ kbuf = kmalloc(count, GFP_KERNEL|GFP_DMA);
+ if (kbuf == NULL) {
up(&chan->wsem);
return -ENOMEM;
}
@@ -923,7 +889,7 @@ static ssize_t cosa_write(struct file *file,
spin_lock_irqsave(&cosa->lock, flags);
add_wait_queue(&chan->txwaitq, &wait);
- while(!chan->tx_status) {
+ while (!chan->tx_status) {
current->state = TASK_INTERRUPTIBLE;
spin_unlock_irqrestore(&cosa->lock, flags);
schedule();
@@ -934,6 +900,7 @@ static ssize_t cosa_write(struct file *file,
current->state = TASK_RUNNING;
chan->tx_status = 1;
spin_unlock_irqrestore(&cosa->lock, flags);
+ up(&chan->wsem);
return -ERESTARTSYS;
}
}
@@ -958,7 +925,7 @@ static int chrdev_tx_done(struct channel_data *chan, int size)
static unsigned int cosa_poll(struct file *file, poll_table *poll)
{
- printk(KERN_INFO "cosa_poll is here\n");
+ pr_info("cosa_poll is here\n");
return 0;
}
@@ -968,15 +935,21 @@ static int cosa_open(struct inode *inode, struct file *file)
struct channel_data *chan;
unsigned long flags;
int n;
+ int ret = 0;
- if ((n=iminor(file->f_path.dentry->d_inode)>>CARD_MINOR_BITS)
- >= nr_cards)
- return -ENODEV;
+ mutex_lock(&cosa_chardev_mutex);
+ if ((n=iminor(file_inode(file))>>CARD_MINOR_BITS)
+ >= nr_cards) {
+ ret = -ENODEV;
+ goto out;
+ }
cosa = cosa_cards+n;
- if ((n=iminor(file->f_path.dentry->d_inode)
- & ((1<<CARD_MINOR_BITS)-1)) >= cosa->nchannels)
- return -ENODEV;
+ if ((n=iminor(file_inode(file))
+ & ((1<<CARD_MINOR_BITS)-1)) >= cosa->nchannels) {
+ ret = -ENODEV;
+ goto out;
+ }
chan = cosa->chan + n;
file->private_data = chan;
@@ -985,7 +958,8 @@ static int cosa_open(struct inode *inode, struct file *file)
if (chan->usage < 0) { /* in netdev mode */
spin_unlock_irqrestore(&cosa->lock, flags);
- return -EBUSY;
+ ret = -EBUSY;
+ goto out;
}
cosa->usage++;
chan->usage++;
@@ -994,7 +968,9 @@ static int cosa_open(struct inode *inode, struct file *file)
chan->setup_rx = chrdev_setup_rx;
chan->rx_done = chrdev_rx_done;
spin_unlock_irqrestore(&cosa->lock, flags);
- return 0;
+out:
+ mutex_unlock(&cosa_chardev_mutex);
+ return ret;
}
static int cosa_release(struct inode *inode, struct file *file)
@@ -1018,8 +994,8 @@ static struct fasync_struct *fasync[256] = { NULL, };
static int cosa_fasync(struct inode *inode, struct file *file, int on)
{
int port = iminor(inode);
- int rv = fasync_helper(inode, file, on, &fasync[port]);
- return rv < 0 ? rv : 0;
+
+ return fasync_helper(inode, file, on, &fasync[port]);
}
#endif
@@ -1034,15 +1010,14 @@ static inline int cosa_reset(struct cosa_data *cosa)
{
char idstring[COSA_MAX_ID_STRING];
if (cosa->usage > 1)
- printk(KERN_INFO "cosa%d: WARNING: reset requested with cosa->usage > 1 (%d). Odd things may happen.\n",
+ pr_info("cosa%d: WARNING: reset requested with cosa->usage > 1 (%d). Odd things may happen.\n",
cosa->num, cosa->usage);
cosa->firmware_status &= ~(COSA_FW_RESET|COSA_FW_START);
if (cosa_reset_and_read_id(cosa, idstring) < 0) {
- printk(KERN_NOTICE "cosa%d: reset failed\n", cosa->num);
+ pr_notice("cosa%d: reset failed\n", cosa->num);
return -EIO;
}
- printk(KERN_INFO "cosa%d: resetting device: %s\n", cosa->num,
- idstring);
+ pr_info("cosa%d: resetting device: %s\n", cosa->num, idstring);
cosa->firmware_status |= COSA_FW_RESET;
return 0;
}
@@ -1054,11 +1029,11 @@ static inline int cosa_download(struct cosa_data *cosa, void __user *arg)
int i;
if (cosa->usage > 1)
- printk(KERN_INFO "%s: WARNING: download of microcode requested with cosa->usage > 1 (%d). Odd things may happen.\n",
+ pr_info("%s: WARNING: download of microcode requested with cosa->usage > 1 (%d). Odd things may happen.\n",
cosa->name, cosa->usage);
if (!(cosa->firmware_status & COSA_FW_RESET)) {
- printk(KERN_NOTICE "%s: reset the card first (status %d).\n",
- cosa->name, cosa->firmware_status);
+ pr_notice("%s: reset the card first (status %d)\n",
+ cosa->name, cosa->firmware_status);
return -EPERM;
}
@@ -1076,11 +1051,11 @@ static inline int cosa_download(struct cosa_data *cosa, void __user *arg)
i = download(cosa, d.code, d.len, d.addr);
if (i < 0) {
- printk(KERN_NOTICE "cosa%d: microcode download failed: %d\n",
- cosa->num, i);
+ pr_notice("cosa%d: microcode download failed: %d\n",
+ cosa->num, i);
return -EIO;
}
- printk(KERN_INFO "cosa%d: downloading microcode - 0x%04x bytes at 0x%04x\n",
+ pr_info("cosa%d: downloading microcode - 0x%04x bytes at 0x%04x\n",
cosa->num, d.len, d.addr);
cosa->firmware_status |= COSA_FW_RESET|COSA_FW_DOWNLOAD;
return 0;
@@ -1093,12 +1068,11 @@ static inline int cosa_readmem(struct cosa_data *cosa, void __user *arg)
int i;
if (cosa->usage > 1)
- printk(KERN_INFO "cosa%d: WARNING: readmem requested with "
- "cosa->usage > 1 (%d). Odd things may happen.\n",
+ pr_info("cosa%d: WARNING: readmem requested with cosa->usage > 1 (%d). Odd things may happen.\n",
cosa->num, cosa->usage);
if (!(cosa->firmware_status & COSA_FW_RESET)) {
- printk(KERN_NOTICE "%s: reset the card first (status %d).\n",
- cosa->name, cosa->firmware_status);
+ pr_notice("%s: reset the card first (status %d)\n",
+ cosa->name, cosa->firmware_status);
return -EPERM;
}
@@ -1110,11 +1084,10 @@ static inline int cosa_readmem(struct cosa_data *cosa, void __user *arg)
i = readmem(cosa, d.code, d.len, d.addr);
if (i < 0) {
- printk(KERN_NOTICE "cosa%d: reading memory failed: %d\n",
- cosa->num, i);
+ pr_notice("cosa%d: reading memory failed: %d\n", cosa->num, i);
return -EIO;
}
- printk(KERN_INFO "cosa%d: reading card memory - 0x%04x bytes at 0x%04x\n",
+ pr_info("cosa%d: reading card memory - 0x%04x bytes at 0x%04x\n",
cosa->num, d.len, d.addr);
cosa->firmware_status |= COSA_FW_RESET;
return 0;
@@ -1126,23 +1099,22 @@ static inline int cosa_start(struct cosa_data *cosa, int address)
int i;
if (cosa->usage > 1)
- printk(KERN_INFO "cosa%d: WARNING: start microcode requested with cosa->usage > 1 (%d). Odd things may happen.\n",
+ pr_info("cosa%d: WARNING: start microcode requested with cosa->usage > 1 (%d). Odd things may happen.\n",
cosa->num, cosa->usage);
if ((cosa->firmware_status & (COSA_FW_RESET|COSA_FW_DOWNLOAD))
!= (COSA_FW_RESET|COSA_FW_DOWNLOAD)) {
- printk(KERN_NOTICE "%s: download the microcode and/or reset the card first (status %d).\n",
- cosa->name, cosa->firmware_status);
+ pr_notice("%s: download the microcode and/or reset the card first (status %d)\n",
+ cosa->name, cosa->firmware_status);
return -EPERM;
}
cosa->firmware_status &= ~COSA_FW_RESET;
if ((i=startmicrocode(cosa, address)) < 0) {
- printk(KERN_NOTICE "cosa%d: start microcode at 0x%04x failed: %d\n",
- cosa->num, address, i);
+ pr_notice("cosa%d: start microcode at 0x%04x failed: %d\n",
+ cosa->num, address, i);
return -EIO;
}
- printk(KERN_INFO "cosa%d: starting microcode at 0x%04x\n",
- cosa->num, address);
+ pr_info("cosa%d: starting microcode at 0x%04x\n", cosa->num, address);
cosa->startaddr = address;
cosa->firmware_status |= COSA_FW_START;
return 0;
@@ -1170,7 +1142,7 @@ static int cosa_ioctl_common(struct cosa_data *cosa,
struct channel_data *channel, unsigned int cmd, unsigned long arg)
{
void __user *argp = (void __user *)arg;
- switch(cmd) {
+ switch (cmd) {
case COSAIORSET: /* Reset the device */
if (!capable(CAP_NET_ADMIN))
return -EACCES;
@@ -1211,24 +1183,29 @@ static int cosa_ioctl_common(struct cosa_data *cosa,
return -ENOIOCTLCMD;
}
-static int cosa_sppp_ioctl(struct net_device *dev, struct ifreq *ifr,
- int cmd)
+static int cosa_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
int rv;
- struct channel_data *chan = dev->priv;
- rv = cosa_ioctl_common(chan->cosa, chan, cmd, (unsigned long)ifr->ifr_data);
- if (rv == -ENOIOCTLCMD) {
- return sppp_do_ioctl(dev, ifr, cmd);
- }
- return rv;
+ struct channel_data *chan = dev_to_chan(dev);
+ rv = cosa_ioctl_common(chan->cosa, chan, cmd,
+ (unsigned long)ifr->ifr_data);
+ if (rv != -ENOIOCTLCMD)
+ return rv;
+ return hdlc_ioctl(dev, ifr, cmd);
}
-static int cosa_chardev_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static long cosa_chardev_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
{
struct channel_data *channel = file->private_data;
- struct cosa_data *cosa = channel->cosa;
- return cosa_ioctl_common(cosa, channel, cmd, arg);
+ struct cosa_data *cosa;
+ long ret;
+
+ mutex_lock(&cosa_chardev_mutex);
+ cosa = channel->cosa;
+ ret = cosa_ioctl_common(cosa, channel, cmd, arg);
+ mutex_unlock(&cosa_chardev_mutex);
+ return ret;
}
@@ -1267,11 +1244,11 @@ static int cosa_start_tx(struct channel_data *chan, char *buf, int len)
#ifdef DEBUG_DATA
int i;
- printk(KERN_INFO "cosa%dc%d: starting tx(0x%x)", chan->cosa->num,
- chan->num, len);
+ pr_info("cosa%dc%d: starting tx(0x%x)",
+ chan->cosa->num, chan->num, len);
for (i=0; i<len; i++)
- printk(" %02x", buf[i]&0xff);
- printk("\n");
+ pr_cont(" %02x", buf[i]&0xff);
+ pr_cont("\n");
#endif
spin_lock_irqsave(&cosa->lock, flags);
chan->txbuf = buf;
@@ -1365,7 +1342,7 @@ static void cosa_kick(struct cosa_data *cosa)
if (test_bit(TXBIT, &cosa->rxtx))
s = "TX DMA";
- printk(KERN_INFO "%s: %s timeout - restarting.\n", cosa->name, s);
+ pr_info("%s: %s timeout - restarting\n", cosa->name, s);
spin_lock_irqsave(&cosa->lock, flags);
cosa->rxtx = 0;
@@ -1399,7 +1376,7 @@ static int cosa_dma_able(struct channel_data *chan, char *buf, int len)
return 0;
if ((b^ (b+len)) & 0x10000) {
if (count++ < 5)
- printk(KERN_INFO "%s: packet spanning a 64k boundary\n",
+ pr_info("%s: packet spanning a 64k boundary\n",
chan->name);
return 0;
}
@@ -1510,8 +1487,7 @@ static int readmem(struct cosa_data *cosa, char __user *microcode, int length, i
char c;
int i;
if ((i=get_wait_data(cosa)) == -1) {
- printk (KERN_INFO "cosa: 0x%04x bytes remaining\n",
- length);
+ pr_info("0x%04x bytes remaining\n", length);
return -11;
}
c=i;
@@ -1545,11 +1521,7 @@ static int cosa_reset_and_read_id(struct cosa_data *cosa, char *idstring)
cosa_putstatus(cosa, 0);
cosa_getdata8(cosa);
cosa_putstatus(cosa, SR_RST);
-#ifdef MODULE
msleep(500);
-#else
- udelay(5*100000);
-#endif
/* Disable all IRQs from the card */
cosa_putstatus(cosa, 0);
@@ -1594,14 +1566,15 @@ static int get_wait_data(struct cosa_data *cosa)
short r;
r = cosa_getdata8(cosa);
#if 0
- printk(KERN_INFO "cosa: get_wait_data returning after %d retries\n", 999-retries);
+ pr_info("get_wait_data returning after %d retries\n",
+ 999-retries);
#endif
return r;
}
/* sleep if not ready to read */
schedule_timeout_interruptible(1);
}
- printk(KERN_INFO "cosa: timeout in get_wait_data (status 0x%x)\n",
+ pr_info("timeout in get_wait_data (status 0x%x)\n",
cosa_getstatus(cosa));
return -1;
}
@@ -1619,7 +1592,7 @@ static int put_wait_data(struct cosa_data *cosa, int data)
if (cosa_getstatus(cosa) & SR_TX_RDY) {
cosa_putdata8(cosa, data);
#if 0
- printk(KERN_INFO "Putdata: %d retries\n", 999-retries);
+ pr_info("Putdata: %d retries\n", 999-retries);
#endif
return 0;
}
@@ -1628,7 +1601,7 @@ static int put_wait_data(struct cosa_data *cosa, int data)
schedule_timeout_interruptible(1);
#endif
}
- printk(KERN_INFO "cosa%d: timeout in put_wait_data (status 0x%x)\n",
+ pr_info("cosa%d: timeout in put_wait_data (status 0x%x)\n",
cosa->num, cosa_getstatus(cosa));
return -1;
}
@@ -1648,13 +1621,13 @@ static int puthexnumber(struct cosa_data *cosa, int number)
sprintf(temp, "%04X", number);
for (i=0; i<4; i++) {
if (put_wait_data(cosa, temp[i]) == -1) {
- printk(KERN_NOTICE "cosa%d: puthexnumber failed to write byte %d\n",
- cosa->num, i);
+ pr_notice("cosa%d: puthexnumber failed to write byte %d\n",
+ cosa->num, i);
return -1-2*i;
}
if (get_wait_data(cosa) != temp[i]) {
- printk(KERN_NOTICE "cosa%d: puthexhumber failed to read echo of byte %d\n",
- cosa->num, i);
+ pr_notice("cosa%d: puthexhumber failed to read echo of byte %d\n",
+ cosa->num, i);
return -2-2*i;
}
}
@@ -1699,8 +1672,7 @@ static inline void tx_interrupt(struct cosa_data *cosa, int status)
{
unsigned long flags, flags1;
#ifdef DEBUG_IRQS
- printk(KERN_INFO "cosa%d: SR_DOWN_REQUEST status=0x%04x\n",
- cosa->num, status);
+ pr_info("cosa%d: SR_DOWN_REQUEST status=0x%04x\n", cosa->num, status);
#endif
spin_lock_irqsave(&cosa->lock, flags);
set_bit(TXBIT, &cosa->rxtx);
@@ -1708,15 +1680,14 @@ static inline void tx_interrupt(struct cosa_data *cosa, int status)
/* flow control, see the comment above */
int i=0;
if (!cosa->txbitmap) {
- printk(KERN_WARNING "%s: No channel wants data "
- "in TX IRQ. Expect DMA timeout.",
+ pr_warn("%s: No channel wants data in TX IRQ. Expect DMA timeout.\n",
cosa->name);
put_driver_status_nolock(cosa);
clear_bit(TXBIT, &cosa->rxtx);
spin_unlock_irqrestore(&cosa->lock, flags);
return;
}
- while(1) {
+ while (1) {
cosa->txchan++;
i++;
if (cosa->txchan >= cosa->nchannels)
@@ -1792,14 +1763,14 @@ static inline void tx_interrupt(struct cosa_data *cosa, int status)
if (cosa->busmaster) {
unsigned long addr = virt_to_bus(cosa->txbuf);
int count=0;
- printk(KERN_INFO "busmaster IRQ\n");
+ pr_info("busmaster IRQ\n");
while (!(cosa_getstatus(cosa)&SR_TX_RDY)) {
count++;
udelay(10);
if (count > 1000) break;
}
- printk(KERN_INFO "status %x\n", cosa_getstatus(cosa));
- printk(KERN_INFO "ready after %d loops\n", count);
+ pr_info("status %x\n", cosa_getstatus(cosa));
+ pr_info("ready after %d loops\n", count);
cosa_putdata16(cosa, (addr >> 16)&0xffff);
count = 0;
@@ -1808,7 +1779,7 @@ static inline void tx_interrupt(struct cosa_data *cosa, int status)
if (count > 1000) break;
udelay(10);
}
- printk(KERN_INFO "ready after %d loops\n", count);
+ pr_info("ready after %d loops\n", count);
cosa_putdata16(cosa, addr &0xffff);
flags1 = claim_dma_lock();
set_dma_mode(cosa->dma, DMA_MODE_CASCADE);
@@ -1836,7 +1807,7 @@ static inline void rx_interrupt(struct cosa_data *cosa, int status)
{
unsigned long flags;
#ifdef DEBUG_IRQS
- printk(KERN_INFO "cosa%d: SR_UP_REQUEST\n", cosa->num);
+ pr_info("cosa%d: SR_UP_REQUEST\n", cosa->num);
#endif
spin_lock_irqsave(&cosa->lock, flags);
@@ -1859,7 +1830,7 @@ static inline void rx_interrupt(struct cosa_data *cosa, int status)
debug_data_in(cosa, cosa->rxsize & 0xff);
#endif
#if 0
- printk(KERN_INFO "cosa%d: receive rxsize = (0x%04x).\n",
+ pr_info("cosa%d: receive rxsize = (0x%04x)\n",
cosa->num, cosa->rxsize);
#endif
}
@@ -1869,12 +1840,12 @@ static inline void rx_interrupt(struct cosa_data *cosa, int status)
debug_data_in(cosa, cosa->rxsize);
#endif
#if 0
- printk(KERN_INFO "cosa%d: receive rxsize = (0x%04x).\n",
+ pr_info("cosa%d: receive rxsize = (0x%04x)\n",
cosa->num, cosa->rxsize);
#endif
}
if (((cosa->rxsize & 0xe000) >> 13) >= cosa->nchannels) {
- printk(KERN_WARNING "%s: rx for unknown channel (0x%04x)\n",
+ pr_warn("%s: rx for unknown channel (0x%04x)\n",
cosa->name, cosa->rxsize);
spin_unlock_irqrestore(&cosa->lock, flags);
goto reject;
@@ -1889,7 +1860,7 @@ static inline void rx_interrupt(struct cosa_data *cosa, int status)
if (!cosa->rxbuf) {
reject: /* Reject the packet */
- printk(KERN_INFO "cosa%d: rejecting packet on channel %d\n",
+ pr_info("cosa%d: rejecting packet on channel %d\n",
cosa->num, cosa->rxchan->num);
cosa->rxbuf = cosa->bouncebuf;
}
@@ -1936,11 +1907,11 @@ static inline void eot_interrupt(struct cosa_data *cosa, int status)
#ifdef DEBUG_DATA
{
int i;
- printk(KERN_INFO "cosa%dc%d: done rx(0x%x)", cosa->num,
- cosa->rxchan->num, cosa->rxsize);
+ pr_info("cosa%dc%d: done rx(0x%x)",
+ cosa->num, cosa->rxchan->num, cosa->rxsize);
for (i=0; i<cosa->rxsize; i++)
- printk (" %02x", cosa->rxbuf[i]&0xff);
- printk("\n");
+ pr_cont(" %02x", cosa->rxbuf[i]&0xff);
+ pr_cont("\n");
}
#endif
/* Packet for unknown channel? */
@@ -1952,8 +1923,7 @@ static inline void eot_interrupt(struct cosa_data *cosa, int status)
if (cosa->rxchan->rx_done(cosa->rxchan))
clear_bit(cosa->rxchan->num, &cosa->rxbitmap);
} else {
- printk(KERN_NOTICE "cosa%d: unexpected EOT interrupt\n",
- cosa->num);
+ pr_notice("cosa%d: unexpected EOT interrupt\n", cosa->num);
}
/*
* Clear the RXBIT, TXBIT and IRQBIT (the latest should be
@@ -1975,8 +1945,7 @@ static irqreturn_t cosa_interrupt(int irq, void *cosa_)
again:
status = cosa_getstatus(cosa);
#ifdef DEBUG_IRQS
- printk(KERN_INFO "cosa%d: got IRQ, status 0x%02x\n", cosa->num,
- status & 0xff);
+ pr_info("cosa%d: got IRQ, status 0x%02x\n", cosa->num, status & 0xff);
#endif
#ifdef DEBUG_IO
debug_status_in(cosa, status);
@@ -1997,15 +1966,15 @@ again:
udelay(100);
goto again;
}
- printk(KERN_INFO "cosa%d: unknown status 0x%02x in IRQ after %d retries\n",
+ pr_info("cosa%d: unknown status 0x%02x in IRQ after %d retries\n",
cosa->num, status & 0xff, count);
}
#ifdef DEBUG_IRQS
if (count)
- printk(KERN_INFO "%s: %d-times got unknown status in IRQ\n",
+ pr_info("%s: %d-times got unknown status in IRQ\n",
cosa->name, count);
else
- printk(KERN_INFO "%s: returning from IRQ\n", cosa->name);
+ pr_info("%s: returning from IRQ\n", cosa->name);
#endif
return IRQ_HANDLED;
}
@@ -2022,7 +1991,7 @@ again:
static void debug_status_in(struct cosa_data *cosa, int status)
{
char *s;
- switch(status & SR_CMD_FROM_SRP_MASK) {
+ switch (status & SR_CMD_FROM_SRP_MASK) {
case SR_UP_REQUEST:
s = "RX_REQ";
break;
@@ -2036,41 +2005,41 @@ static void debug_status_in(struct cosa_data *cosa, int status)
s = "NO_REQ";
break;
}
- printk(KERN_INFO "%s: IO: status -> 0x%02x (%s%s%s%s)\n",
+ pr_info("%s: IO: status -> 0x%02x (%s%s%s%s)\n",
cosa->name,
status,
- status & SR_USR_RQ ? "USR_RQ|":"",
- status & SR_TX_RDY ? "TX_RDY|":"",
- status & SR_RX_RDY ? "RX_RDY|":"",
+ status & SR_USR_RQ ? "USR_RQ|" : "",
+ status & SR_TX_RDY ? "TX_RDY|" : "",
+ status & SR_RX_RDY ? "RX_RDY|" : "",
s);
}
static void debug_status_out(struct cosa_data *cosa, int status)
{
- printk(KERN_INFO "%s: IO: status <- 0x%02x (%s%s%s%s%s%s)\n",
+ pr_info("%s: IO: status <- 0x%02x (%s%s%s%s%s%s)\n",
cosa->name,
status,
- status & SR_RX_DMA_ENA ? "RXDMA|":"!rxdma|",
- status & SR_TX_DMA_ENA ? "TXDMA|":"!txdma|",
- status & SR_RST ? "RESET|":"",
- status & SR_USR_INT_ENA ? "USRINT|":"!usrint|",
- status & SR_TX_INT_ENA ? "TXINT|":"!txint|",
- status & SR_RX_INT_ENA ? "RXINT":"!rxint");
+ status & SR_RX_DMA_ENA ? "RXDMA|" : "!rxdma|",
+ status & SR_TX_DMA_ENA ? "TXDMA|" : "!txdma|",
+ status & SR_RST ? "RESET|" : "",
+ status & SR_USR_INT_ENA ? "USRINT|" : "!usrint|",
+ status & SR_TX_INT_ENA ? "TXINT|" : "!txint|",
+ status & SR_RX_INT_ENA ? "RXINT" : "!rxint");
}
static void debug_data_in(struct cosa_data *cosa, int data)
{
- printk(KERN_INFO "%s: IO: data -> 0x%04x\n", cosa->name, data);
+ pr_info("%s: IO: data -> 0x%04x\n", cosa->name, data);
}
static void debug_data_out(struct cosa_data *cosa, int data)
{
- printk(KERN_INFO "%s: IO: data <- 0x%04x\n", cosa->name, data);
+ pr_info("%s: IO: data <- 0x%04x\n", cosa->name, data);
}
static void debug_data_cmd(struct cosa_data *cosa, int data)
{
- printk(KERN_INFO "%s: IO: data <- 0x%04x (%s|%s)\n",
+ pr_info("%s: IO: data <- 0x%04x (%s|%s)\n",
cosa->name, data,
data & SR_RDY_RCV ? "RX_RDY" : "!rx_rdy",
data & SR_RDY_SND ? "TX_RDY" : "!tx_rdy");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 11:07:45 +0000