summaryrefslogtreecommitdiff
path: root/drivers/net/wan/pci200syn.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wan/pci200syn.c')
-rw-r--r--drivers/net/wan/pci200syn.c91
1 files changed, 35 insertions, 56 deletions
diff --git a/drivers/net/wan/pci200syn.c b/drivers/net/wan/pci200syn.c
index 4e437c599e9a..ea86c7035653 100644
--- a/drivers/net/wan/pci200syn.c
+++ b/drivers/net/wan/pci200syn.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Goramo PCI200SYN synchronous serial card driver for Linux
*
* Copyright (C) 2002-2008 Krzysztof Halasa <khc@pm.waw.pl>
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License
- * as published by the Free Software Foundation.
- *
- * For information see <http://www.kernel.org/pub/linux/utils/net/hdlc/>
+ * For information see <https://www.kernel.org/pub/linux/utils/net/hdlc/>
*
* Sources of information:
* Hitachi HD64572 SCA-II User's Manual
@@ -27,7 +24,6 @@
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/ioport.h>
-#include <linux/moduleparam.h>
#include <linux/netdevice.h>
#include <linux/hdlc.h>
#include <linux/pci.h>
@@ -46,8 +42,7 @@
static int pci_clock_freq = 33000000;
#define CLOCK_BASE pci_clock_freq
-/*
- * PLX PCI9052 local configuration and shared runtime registers.
+/* PLX PCI9052 local configuration and shared runtime registers.
* This structure can be used to access 9052 registers (memory mapped).
*/
typedef struct {
@@ -60,9 +55,7 @@ typedef struct {
u32 cs_base[4]; /* 3C-48h : Chip Select Base Addrs */
u32 intr_ctrl_stat; /* 4Ch : Interrupt Control/Status */
u32 init_ctrl; /* 50h : EEPROM ctrl, Init Ctrl, etc */
-}plx9052;
-
-
+} plx9052;
typedef struct port_s {
struct napi_struct napi;
@@ -78,9 +71,7 @@ typedef struct port_s {
u16 txlast;
u8 rxs, txs, tmc; /* SCA registers */
u8 chan; /* physical port # - 0 or 1 */
-}port_t;
-
-
+} port_t;
typedef struct card_s {
u8 __iomem *rambase; /* buffer memory base (virtual) */
@@ -92,15 +83,15 @@ typedef struct card_s {
u8 irq; /* interrupt request level */
port_t ports[2];
-}card_t;
-
+} card_t;
-#define get_port(card, port) (&card->ports[port])
-#define sca_flush(card) (sca_in(IER0, card));
+#define get_port(card, port) (&(card)->ports[port])
+#define sca_flush(card) (sca_in(IER0, card))
static inline void new_memcpy_toio(char __iomem *dest, char *src, int length)
{
int len;
+
do {
len = length > 256 ? 256 : length;
memcpy_toio(dest, src, len);
@@ -116,7 +107,6 @@ static inline void new_memcpy_toio(char __iomem *dest, char *src, int length)
#include "hd64572.c"
-
static void pci200_set_iface(port_t *port)
{
card_t *card = port->card;
@@ -126,7 +116,7 @@ static void pci200_set_iface(port_t *port)
sca_out(EXS_TES1, (port->chan ? MSCI1_OFFSET : MSCI0_OFFSET) + EXS,
port->card);
- switch(port->settings.clock_type) {
+ switch (port->settings.clock_type) {
case CLOCK_INT:
rxs |= CLK_BRG; /* BRG output */
txs |= CLK_PIN_OUT | CLK_TX_RXCLK; /* RX clock */
@@ -155,13 +145,11 @@ static void pci200_set_iface(port_t *port)
sca_set_port(port);
}
-
-
static int pci200_open(struct net_device *dev)
{
port_t *port = dev_to_port(dev);
-
int result = hdlc_open(dev);
+
if (result)
return result;
@@ -171,8 +159,6 @@ static int pci200_open(struct net_device *dev)
return 0;
}
-
-
static int pci200_close(struct net_device *dev)
{
sca_close(dev);
@@ -181,29 +167,30 @@ static int pci200_close(struct net_device *dev)
return 0;
}
-
-
-static int pci200_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+static int pci200_siocdevprivate(struct net_device *dev, struct ifreq *ifr,
+ void __user *data, int cmd)
{
- const size_t size = sizeof(sync_serial_settings);
- sync_serial_settings new_line;
- sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync;
- port_t *port = dev_to_port(dev);
-
#ifdef DEBUG_RINGS
if (cmd == SIOCDEVPRIVATE) {
sca_dump_rings(dev);
return 0;
}
#endif
- if (cmd != SIOCWANDEV)
- return hdlc_ioctl(dev, ifr, cmd);
+ return -EOPNOTSUPP;
+}
+
+static int pci200_ioctl(struct net_device *dev, struct if_settings *ifs)
+{
+ const size_t size = sizeof(sync_serial_settings);
+ sync_serial_settings new_line;
+ sync_serial_settings __user *line = ifs->ifs_ifsu.sync;
+ port_t *port = dev_to_port(dev);
- switch(ifr->ifr_settings.type) {
+ switch (ifs->type) {
case IF_GET_IFACE:
- ifr->ifr_settings.type = IF_IFACE_V35;
- if (ifr->ifr_settings.size < size) {
- ifr->ifr_settings.size = size; /* data size wanted */
+ ifs->type = IF_IFACE_V35;
+ if (ifs->size < size) {
+ ifs->size = size; /* data size wanted */
return -ENOBUFS;
}
if (copy_to_user(line, &port->settings, size))
@@ -233,12 +220,10 @@ static int pci200_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
return 0;
default:
- return hdlc_ioctl(dev, ifr, cmd);
+ return hdlc_ioctl(dev, ifs);
}
}
-
-
static void pci200_pci_remove_one(struct pci_dev *pdev)
{
int i;
@@ -271,7 +256,8 @@ static const struct net_device_ops pci200_ops = {
.ndo_open = pci200_open,
.ndo_stop = pci200_close,
.ndo_start_xmit = hdlc_start_xmit,
- .ndo_do_ioctl = pci200_ioctl,
+ .ndo_siocwandev = pci200_ioctl,
+ .ndo_siocdevprivate = pci200_siocdevprivate,
};
static int pci200_pci_init_one(struct pci_dev *pdev,
@@ -296,7 +282,7 @@ static int pci200_pci_init_one(struct pci_dev *pdev,
}
card = kzalloc(sizeof(card_t), GFP_KERNEL);
- if (card == NULL) {
+ if (!card) {
pci_release_regions(pdev);
pci_disable_device(pdev);
return -ENOBUFS;
@@ -318,18 +304,16 @@ static int pci200_pci_init_one(struct pci_dev *pdev,
return -EFAULT;
}
- plxphys = pci_resource_start(pdev,0) & PCI_BASE_ADDRESS_MEM_MASK;
+ plxphys = pci_resource_start(pdev, 0) & PCI_BASE_ADDRESS_MEM_MASK;
card->plxbase = ioremap(plxphys, PCI200SYN_PLX_SIZE);
- scaphys = pci_resource_start(pdev,2) & PCI_BASE_ADDRESS_MEM_MASK;
+ scaphys = pci_resource_start(pdev, 2) & PCI_BASE_ADDRESS_MEM_MASK;
card->scabase = ioremap(scaphys, PCI200SYN_SCA_SIZE);
- ramphys = pci_resource_start(pdev,3) & PCI_BASE_ADDRESS_MEM_MASK;
+ ramphys = pci_resource_start(pdev, 3) & PCI_BASE_ADDRESS_MEM_MASK;
card->rambase = pci_ioremap_bar(pdev, 3);
- if (card->plxbase == NULL ||
- card->scabase == NULL ||
- card->rambase == NULL) {
+ if (!card->plxbase || !card->scabase || !card->rambase) {
pr_err("ioremap() failed\n");
pci200_pci_remove_one(pdev);
return -EFAULT;
@@ -384,6 +368,7 @@ static int pci200_pci_init_one(struct pci_dev *pdev,
port_t *port = &card->ports[i];
struct net_device *dev = port->netdev;
hdlc_device *hdlc = dev_to_hdlc(dev);
+
port->chan = i;
spin_lock_init(&port->lock);
@@ -411,15 +396,12 @@ static int pci200_pci_init_one(struct pci_dev *pdev,
return 0;
}
-
-
static const struct pci_device_id pci200_pci_tbl[] = {
{ PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050, PCI_VENDOR_ID_PLX,
PCI_DEVICE_ID_PLX_PCI200SYN, 0, 0, 0 },
{ 0, }
};
-
static struct pci_driver pci200_pci_driver = {
.name = "PCI200SYN",
.id_table = pci200_pci_tbl,
@@ -427,7 +409,6 @@ static struct pci_driver pci200_pci_driver = {
.remove = pci200_pci_remove_one,
};
-
static int __init pci200_init_module(void)
{
if (pci_clock_freq < 1000000 || pci_clock_freq > 80000000) {
@@ -437,8 +418,6 @@ static int __init pci200_init_module(void)
return pci_register_driver(&pci200_pci_driver);
}
-
-
static void __exit pci200_cleanup_module(void)
{
pci_unregister_driver(&pci200_pci_driver);
generated by cgit (git 2.34.1) at 2025-12-25 16:27:47 +0000