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path: root/drivers/net/wan/pc300too.c
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Diffstat (limited to 'drivers/net/wan/pc300too.c')
-rw-r--r--drivers/net/wan/pc300too.c108
1 files changed, 43 insertions, 65 deletions
diff --git a/drivers/net/wan/pc300too.c b/drivers/net/wan/pc300too.c
index 53efc57fcace..4766446f0fa0 100644
--- a/drivers/net/wan/pc300too.c
+++ b/drivers/net/wan/pc300too.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Cyclades PC300 synchronous serial card driver for Linux
*
* Copyright (C) 2000-2008 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
@@ -47,7 +44,7 @@
#define MAX_TX_BUFFERS 10
static int pci_clock_freq = 33000000;
-static int use_crystal_clock = 0;
+static int use_crystal_clock;
static unsigned int CLOCK_BASE;
/* Masks to access the init_ctrl PLX register */
@@ -55,11 +52,9 @@ static unsigned int CLOCK_BASE;
#define PC300_CHMEDIA_MASK(port) (0x00000020UL << ((port) * 3))
#define PC300_CTYPE_MASK (0x00000800UL)
-
enum { PC300_RSV = 1, PC300_X21, PC300_TE }; /* card types */
-/*
- * PLX PCI9050-1 local configuration and shared runtime registers.
+/* PLX PCI9050-1 local configuration and shared runtime registers.
* This structure can be used to access 9050 registers (memory mapped).
*/
typedef struct {
@@ -72,9 +67,7 @@ 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 */
-}plx9050;
-
-
+} plx9050;
typedef struct port_s {
struct napi_struct napi;
@@ -91,9 +84,7 @@ 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 {
int type; /* RSV, X21, etc. */
@@ -108,26 +99,24 @@ typedef struct card_s {
u8 irq; /* interrupt request level */
port_t ports[2];
-}card_t;
-
+} card_t;
#define get_port(card, port) ((port) < (card)->n_ports ? \
(&(card)->ports[port]) : (NULL))
#include "hd64572.c"
-
static void pc300_set_iface(port_t *port)
{
card_t *card = port->card;
- u32 __iomem * init_ctrl = &card->plxbase->init_ctrl;
+ u32 __iomem *init_ctrl = &card->plxbase->init_ctrl;
u16 msci = get_msci(port);
u8 rxs = port->rxs & CLK_BRG_MASK;
u8 txs = port->txs & CLK_BRG_MASK;
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 */
@@ -165,13 +154,11 @@ static void pc300_set_iface(port_t *port)
}
}
-
-
static int pc300_open(struct net_device *dev)
{
port_t *port = dev_to_port(dev);
-
int result = hdlc_open(dev);
+
if (result)
return result;
@@ -180,8 +167,6 @@ static int pc300_open(struct net_device *dev)
return 0;
}
-
-
static int pc300_close(struct net_device *dev)
{
sca_close(dev);
@@ -189,53 +174,53 @@ static int pc300_close(struct net_device *dev)
return 0;
}
-
-
-static int pc300_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+static int pc300_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;
- int new_type;
- 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 pc300_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;
+ int new_type;
+ port_t *port = dev_to_port(dev);
- if (ifr->ifr_settings.type == IF_GET_IFACE) {
- ifr->ifr_settings.type = port->iface;
- if (ifr->ifr_settings.size < size) {
- ifr->ifr_settings.size = size; /* data size wanted */
+ if (ifs->type == IF_GET_IFACE) {
+ ifs->type = port->iface;
+ if (ifs->size < size) {
+ ifs->size = size; /* data size wanted */
return -ENOBUFS;
}
if (copy_to_user(line, &port->settings, size))
return -EFAULT;
return 0;
-
}
if (port->card->type == PC300_X21 &&
- (ifr->ifr_settings.type == IF_IFACE_SYNC_SERIAL ||
- ifr->ifr_settings.type == IF_IFACE_X21))
+ (ifs->type == IF_IFACE_SYNC_SERIAL ||
+ ifs->type == IF_IFACE_X21))
new_type = IF_IFACE_X21;
else if (port->card->type == PC300_RSV &&
- (ifr->ifr_settings.type == IF_IFACE_SYNC_SERIAL ||
- ifr->ifr_settings.type == IF_IFACE_V35))
+ (ifs->type == IF_IFACE_SYNC_SERIAL ||
+ ifs->type == IF_IFACE_V35))
new_type = IF_IFACE_V35;
else if (port->card->type == PC300_RSV &&
- ifr->ifr_settings.type == IF_IFACE_V24)
+ ifs->type == IF_IFACE_V24)
new_type = IF_IFACE_V24;
else
- return hdlc_ioctl(dev, ifr, cmd);
+ return hdlc_ioctl(dev, ifs);
if (!capable(CAP_NET_ADMIN))
return -EPERM;
@@ -258,8 +243,6 @@ static int pc300_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
return 0;
}
-
-
static void pc300_pci_remove_one(struct pci_dev *pdev)
{
int i;
@@ -281,7 +264,6 @@ static void pc300_pci_remove_one(struct pci_dev *pdev)
pci_release_regions(pdev);
pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
if (card->ports[0].netdev)
free_netdev(card->ports[0].netdev);
if (card->ports[1].netdev)
@@ -292,9 +274,9 @@ static void pc300_pci_remove_one(struct pci_dev *pdev)
static const struct net_device_ops pc300_ops = {
.ndo_open = pc300_open,
.ndo_stop = pc300_close,
- .ndo_change_mtu = hdlc_change_mtu,
.ndo_start_xmit = hdlc_start_xmit,
- .ndo_do_ioctl = pc300_ioctl,
+ .ndo_siocwandev = pc300_ioctl,
+ .ndo_siocdevprivate = pc300_siocdevprivate,
};
static int pc300_pci_init_one(struct pci_dev *pdev,
@@ -319,7 +301,7 @@ static int pc300_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;
@@ -343,11 +325,10 @@ static int pc300_pci_init_one(struct pci_dev *pdev,
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");
pc300_pci_remove_one(pdev);
+ return -ENOMEM;
}
/* PLX PCI 9050 workaround for local configuration register read bug */
@@ -369,12 +350,14 @@ static int pc300_pci_init_one(struct pci_dev *pdev,
else
card->n_ports = 2;
- for (i = 0; i < card->n_ports; i++)
- if (!(card->ports[i].netdev = alloc_hdlcdev(&card->ports[i]))) {
+ for (i = 0; i < card->n_ports; i++) {
+ card->ports[i].netdev = alloc_hdlcdev(&card->ports[i]);
+ if (!card->ports[i].netdev) {
pr_err("unable to allocate memory\n");
pc300_pci_remove_one(pdev);
return -ENOMEM;
}
+ }
/* Reset PLX */
p = &card->plxbase->init_ctrl;
@@ -446,6 +429,7 @@ static int pc300_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);
@@ -476,9 +460,7 @@ static int pc300_pci_init_one(struct pci_dev *pdev,
return 0;
}
-
-
-static DEFINE_PCI_DEVICE_TABLE(pc300_pci_tbl) = {
+static const struct pci_device_id pc300_pci_tbl[] = {
{ PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_PC300_RX_1, PCI_ANY_ID,
PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_PC300_RX_2, PCI_ANY_ID,
@@ -490,7 +472,6 @@ static DEFINE_PCI_DEVICE_TABLE(pc300_pci_tbl) = {
{ 0, }
};
-
static struct pci_driver pc300_pci_driver = {
.name = "PC300",
.id_table = pc300_pci_tbl,
@@ -498,7 +479,6 @@ static struct pci_driver pc300_pci_driver = {
.remove = pc300_pci_remove_one,
};
-
static int __init pc300_init_module(void)
{
if (pci_clock_freq < 1000000 || pci_clock_freq > 80000000) {
@@ -515,8 +495,6 @@ static int __init pc300_init_module(void)
return pci_register_driver(&pc300_pci_driver);
}
-
-
static void __exit pc300_cleanup_module(void)
{
pci_unregister_driver(&pc300_pci_driver);
generated by cgit (git 2.34.1) at 2025-12-25 11:26:21 +0000