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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.c52
1 files changed, 15 insertions, 37 deletions
diff --git a/drivers/net/wan/pc300too.c b/drivers/net/wan/pc300too.c
index 001fd378d417..7b123a771aa6 100644
--- a/drivers/net/wan/pc300too.c
+++ b/drivers/net/wan/pc300too.c
@@ -44,7 +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 */
@@ -52,11 +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 {
@@ -69,9 +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;
@@ -88,9 +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. */
@@ -105,26 +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 */
@@ -162,13 +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;
@@ -177,8 +167,6 @@ static int pc300_open(struct net_device *dev)
return 0;
}
-
-
static int pc300_close(struct net_device *dev)
{
sca_close(dev);
@@ -186,8 +174,6 @@ static int pc300_close(struct net_device *dev)
return 0;
}
-
-
static int pc300_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
const size_t size = sizeof(sync_serial_settings);
@@ -214,7 +200,6 @@ static int pc300_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
if (copy_to_user(line, &port->settings, size))
return -EFAULT;
return 0;
-
}
if (port->card->type == PC300_X21 &&
@@ -255,8 +240,6 @@ 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;
@@ -314,7 +297,7 @@ 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;
@@ -338,9 +321,7 @@ 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;
@@ -365,12 +346,14 @@ 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;
@@ -442,6 +425,7 @@ 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);
@@ -472,8 +456,6 @@ static int pc300_pci_init_one(struct pci_dev *pdev,
return 0;
}
-
-
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 },
@@ -486,7 +468,6 @@ static const struct pci_device_id pc300_pci_tbl[] = {
{ 0, }
};
-
static struct pci_driver pc300_pci_driver = {
.name = "PC300",
.id_table = pc300_pci_tbl,
@@ -494,7 +475,6 @@ 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) {
@@ -511,8 +491,6 @@ 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 v1.2.3 (git 2.39.0) at 2024-11-07 17:49:58 +0300