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path: root/drivers/net/wan/n2.c
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Diffstat (limited to 'drivers/net/wan/n2.c')
-rw-r--r--drivers/net/wan/n2.c92
1 files changed, 48 insertions, 44 deletions
diff --git a/drivers/net/wan/n2.c b/drivers/net/wan/n2.c
index cd32751b64e..315bf09d6a2 100644
--- a/drivers/net/wan/n2.c
+++ b/drivers/net/wan/n2.c
@@ -7,7 +7,7 @@
* under the terms of version 2 of the GNU General Public License
* as published by the Free Software Foundation.
*
- * For information see http://hq.pm.waw.pl/hdlc/
+ * For information see <http://www.kernel.org/pub/linux/utils/net/hdlc/>
*
* Note: integrated CSU/DSU/DDS are not supported by this driver
*
@@ -16,8 +16,11 @@
* SDL Inc. PPP/HDLC/CISCO driver
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/kernel.h>
+#include <linux/capability.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/fcntl.h>
@@ -53,7 +56,7 @@ static const char* devname = "RISCom/N2";
#define NEED_SCA_MSCI_INTR
#define MAX_TX_BUFFERS 10
-static char *hw = NULL; /* pointer to hw=xxx command line string */
+static char *hw; /* pointer to hw=xxx command line string */
/* RISCom/N2 Board Registers */
@@ -145,7 +148,6 @@ static card_t **new_card = &first_card;
&(card)->ports[port] : NULL)
-
static __inline__ u8 sca_get_page(card_t *card)
{
return inb(card->io + N2_PSR) & PSR_PAGEBITS;
@@ -159,9 +161,7 @@ static __inline__ void openwin(card_t *card, u8 page)
}
-
-#include "hd6457x.c"
-
+#include "hd64570.c"
static void n2_set_iface(port_t *port)
@@ -284,7 +284,7 @@ static int n2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
new_line.clock_type != CLOCK_TXFROMRX &&
new_line.clock_type != CLOCK_INT &&
new_line.clock_type != CLOCK_TXINT)
- return -EINVAL; /* No such clock setting */
+ return -EINVAL; /* No such clock setting */
if (new_line.loopback != 0 && new_line.loopback != 1)
return -EINVAL;
@@ -327,7 +327,13 @@ static void n2_destroy_card(card_t *card)
kfree(card);
}
-
+static const struct net_device_ops n2_ops = {
+ .ndo_open = n2_open,
+ .ndo_stop = n2_close,
+ .ndo_change_mtu = hdlc_change_mtu,
+ .ndo_start_xmit = hdlc_start_xmit,
+ .ndo_do_ioctl = n2_ioctl,
+};
static int __init n2_run(unsigned long io, unsigned long irq,
unsigned long winbase, long valid0, long valid1)
@@ -337,56 +343,58 @@ static int __init n2_run(unsigned long io, unsigned long irq,
int i;
if (io < 0x200 || io > 0x3FF || (io % N2_IOPORTS) != 0) {
- printk(KERN_ERR "n2: invalid I/O port value\n");
+ pr_err("invalid I/O port value\n");
return -ENODEV;
}
if (irq < 3 || irq > 15 || irq == 6) /* FIXME */ {
- printk(KERN_ERR "n2: invalid IRQ value\n");
+ pr_err("invalid IRQ value\n");
return -ENODEV;
}
if (winbase < 0xA0000 || winbase > 0xFFFFF || (winbase & 0xFFF) != 0) {
- printk(KERN_ERR "n2: invalid RAM value\n");
+ pr_err("invalid RAM value\n");
return -ENODEV;
}
- card = kmalloc(sizeof(card_t), GFP_KERNEL);
- if (card == NULL) {
- printk(KERN_ERR "n2: unable to allocate memory\n");
+ card = kzalloc(sizeof(card_t), GFP_KERNEL);
+ if (card == NULL)
return -ENOBUFS;
- }
- memset(card, 0, sizeof(card_t));
card->ports[0].dev = alloc_hdlcdev(&card->ports[0]);
card->ports[1].dev = alloc_hdlcdev(&card->ports[1]);
if (!card->ports[0].dev || !card->ports[1].dev) {
- printk(KERN_ERR "n2: unable to allocate memory\n");
+ pr_err("unable to allocate memory\n");
n2_destroy_card(card);
return -ENOMEM;
}
if (!request_region(io, N2_IOPORTS, devname)) {
- printk(KERN_ERR "n2: I/O port region in use\n");
+ pr_err("I/O port region in use\n");
n2_destroy_card(card);
return -EBUSY;
}
card->io = io;
- if (request_irq(irq, &sca_intr, 0, devname, card)) {
- printk(KERN_ERR "n2: could not allocate IRQ\n");
+ if (request_irq(irq, sca_intr, 0, devname, card)) {
+ pr_err("could not allocate IRQ\n");
n2_destroy_card(card);
- return(-EBUSY);
+ return -EBUSY;
}
card->irq = irq;
if (!request_mem_region(winbase, USE_WINDOWSIZE, devname)) {
- printk(KERN_ERR "n2: could not request RAM window\n");
+ pr_err("could not request RAM window\n");
n2_destroy_card(card);
- return(-EBUSY);
+ return -EBUSY;
}
card->phy_winbase = winbase;
card->winbase = ioremap(winbase, USE_WINDOWSIZE);
+ if (!card->winbase) {
+ pr_err("ioremap() failed\n");
+ n2_destroy_card(card);
+ return -EFAULT;
+ }
outb(0, io + N2_PCR);
outb(winbase >> 12, io + N2_BAR);
@@ -405,7 +413,7 @@ static int __init n2_run(unsigned long io, unsigned long irq,
break;
default:
- printk(KERN_ERR "n2: invalid window size\n");
+ pr_err("invalid window size\n");
n2_destroy_card(card);
return -ENODEV;
}
@@ -425,12 +433,12 @@ static int __init n2_run(unsigned long io, unsigned long irq,
card->buff_offset = (valid0 + valid1) * sizeof(pkt_desc) *
(card->tx_ring_buffers + card->rx_ring_buffers);
- printk(KERN_INFO "n2: RISCom/N2 %u KB RAM, IRQ%u, "
- "using %u TX + %u RX packets rings\n", card->ram_size / 1024,
- card->irq, card->tx_ring_buffers, card->rx_ring_buffers);
+ pr_info("RISCom/N2 %u KB RAM, IRQ%u, using %u TX + %u RX packets rings\n",
+ card->ram_size / 1024, card->irq,
+ card->tx_ring_buffers, card->rx_ring_buffers);
if (card->tx_ring_buffers < 1) {
- printk(KERN_ERR "n2: RAM test failed\n");
+ pr_err("RAM test failed\n");
n2_destroy_card(card);
return -EIO;
}
@@ -455,30 +463,25 @@ static int __init n2_run(unsigned long io, unsigned long irq,
port->log_node = 1;
spin_lock_init(&port->lock);
- SET_MODULE_OWNER(dev);
dev->irq = irq;
dev->mem_start = winbase;
dev->mem_end = winbase + USE_WINDOWSIZE - 1;
dev->tx_queue_len = 50;
- dev->do_ioctl = n2_ioctl;
- dev->open = n2_open;
- dev->stop = n2_close;
+ dev->netdev_ops = &n2_ops;
hdlc->attach = sca_attach;
hdlc->xmit = sca_xmit;
port->settings.clock_type = CLOCK_EXT;
port->card = card;
if (register_hdlc_device(dev)) {
- printk(KERN_WARNING "n2: unable to register hdlc "
- "device\n");
+ pr_warn("unable to register hdlc device\n");
port->card = NULL;
n2_destroy_card(card);
return -ENOBUFS;
}
- sca_init_sync_port(port); /* Set up SCA memory */
+ sca_init_port(port); /* Set up SCA memory */
- printk(KERN_INFO "%s: RISCom/N2 node %d\n",
- dev->name, port->phy_node);
+ netdev_info(dev, "RISCom/N2 node %d\n", port->phy_node);
}
*new_card = card;
@@ -493,12 +496,12 @@ static int __init n2_init(void)
{
if (hw==NULL) {
#ifdef MODULE
- printk(KERN_INFO "n2: no card initialized\n");
+ pr_info("no card initialized\n");
#endif
- return -ENOSYS; /* no parameters specified, abort */
+ return -EINVAL; /* no parameters specified, abort */
}
- printk(KERN_INFO "%s\n", version);
+ pr_info("%s\n", version);
do {
unsigned long io, irq, ram;
@@ -533,11 +536,11 @@ static int __init n2_init(void)
n2_run(io, irq, ram, valid[0], valid[1]);
if (*hw == '\x0')
- return first_card ? 0 : -ENOSYS;
+ return first_card ? 0 : -EINVAL;
}while(*hw++ == ':');
- printk(KERN_ERR "n2: invalid hardware parameters\n");
- return first_card ? 0 : -ENOSYS;
+ pr_err("invalid hardware parameters\n");
+ return first_card ? 0 : -EINVAL;
}
@@ -559,4 +562,5 @@ module_exit(n2_cleanup);
MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>");
MODULE_DESCRIPTION("RISCom/N2 serial port driver");
MODULE_LICENSE("GPL v2");
-module_param(hw, charp, 0444); /* hw=io,irq,ram,ports:io,irq,... */
+module_param(hw, charp, 0444);
+MODULE_PARM_DESC(hw, "io,irq,ram,ports:io,irq,...");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 20:32:25 +0000