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path: root/target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c
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Diffstat (limited to 'target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c')
-rw-r--r--target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c143
1 files changed, 57 insertions, 86 deletions
diff --git a/target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c b/target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c
index fafb5a52fe..695e0b77aa 100644
--- a/target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c
+++ b/target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c
@@ -48,43 +48,39 @@ struct ifxmips_mii_priv {
static struct net_device *ifxmips_mii0_dev;
static unsigned char mac_addr[MAX_ADDR_LEN];
-void
-ifxmips_write_mdio(u32 phy_addr, u32 phy_reg, u16 phy_data)
+void ifxmips_write_mdio(u32 phy_addr, u32 phy_reg, u16 phy_data)
{
u32 val = MDIO_ACC_REQUEST |
((phy_addr & MDIO_ACC_ADDR_MASK) << MDIO_ACC_ADDR_OFFSET) |
((phy_reg & MDIO_ACC_REG_MASK) << MDIO_ACC_REG_OFFSET) |
phy_data;
- while(ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST);
+ while (ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST);
ifxmips_w32(val, IFXMIPS_PPE32_MDIO_ACC);
}
EXPORT_SYMBOL(ifxmips_write_mdio);
-unsigned short
-ifxmips_read_mdio(u32 phy_addr, u32 phy_reg)
+unsigned short ifxmips_read_mdio(u32 phy_addr, u32 phy_reg)
{
u32 val = MDIO_ACC_REQUEST | MDIO_ACC_READ |
((phy_addr & MDIO_ACC_ADDR_MASK) << MDIO_ACC_ADDR_OFFSET) |
((phy_reg & MDIO_ACC_REG_MASK) << MDIO_ACC_REG_OFFSET);
- while(ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST);
+ while (ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST) ;
ifxmips_w32(val, IFXMIPS_PPE32_MDIO_ACC);
- while(ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST){};
+ while (ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST) ;
val = ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_VAL_MASK;
return val;
}
EXPORT_SYMBOL(ifxmips_read_mdio);
-int
-ifxmips_ifxmips_mii_open(struct net_device *dev)
+int ifxmips_ifxmips_mii_open(struct net_device *dev)
{
- struct ifxmips_mii_priv* priv = (struct ifxmips_mii_priv*)dev->priv;
- struct dma_device_info* dma_dev = priv->dma_device;
+ struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)dev->priv;
+ struct dma_device_info *dma_dev = priv->dma_device;
int i;
- for (i = 0; i < dma_dev->max_rx_chan_num; i++)
- {
+ for (i = 0; i < dma_dev->max_rx_chan_num; i++) {
if ((dma_dev->rx_chan[i])->control == IFXMIPS_DMA_CH_ON)
(dma_dev->rx_chan[i])->open(dma_dev->rx_chan[i]);
}
@@ -92,10 +88,10 @@ ifxmips_ifxmips_mii_open(struct net_device *dev)
return 0;
}
-int
-ifxmips_mii_release(struct net_device *dev){
- struct ifxmips_mii_priv* priv = (struct ifxmips_mii_priv*)dev->priv;
- struct dma_device_info* dma_dev = priv->dma_device;
+int ifxmips_mii_release(struct net_device *dev)
+{
+ struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)dev->priv;
+ struct dma_device_info *dma_dev = priv->dma_device;
int i;
for (i = 0; i < dma_dev->max_rx_chan_num; i++)
@@ -104,32 +100,28 @@ ifxmips_mii_release(struct net_device *dev){
return 0;
}
-int
-ifxmips_mii_hw_receive(struct net_device* dev,struct dma_device_info* dma_dev)
+int ifxmips_mii_hw_receive(struct net_device *dev, struct dma_device_info *dma_dev)
{
- struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv*)dev->priv;
- unsigned char* buf = NULL;
+ struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)dev->priv;
+ unsigned char *buf = NULL;
struct sk_buff *skb = NULL;
int len = 0;
- len = dma_device_read(dma_dev, &buf, (void**)&skb);
+ len = dma_device_read(dma_dev, &buf, (void **)&skb);
- if (len >= ETHERNET_PACKET_DMA_BUFFER_SIZE)
- {
- printk(KERN_INFO "ifxmips_mii0: packet too large %d\n",len);
+ if (len >= ETHERNET_PACKET_DMA_BUFFER_SIZE) {
+ printk(KERN_INFO "ifxmips_mii0: packet too large %d\n", len);
goto ifxmips_mii_hw_receive_err_exit;
}
/* remove CRC */
len -= 4;
- if (skb == NULL)
- {
+ if (skb == NULL) {
printk(KERN_INFO "ifxmips_mii0: cannot restore pointer\n");
goto ifxmips_mii_hw_receive_err_exit;
}
- if (len > (skb->end - skb->tail))
- {
+ if (len > (skb->end - skb->tail)) {
printk(KERN_INFO "ifxmips_mii0: BUG, len:%d end:%p tail:%p\n",
(len+4), skb->end, skb->tail);
goto ifxmips_mii_hw_receive_err_exit;
@@ -145,8 +137,7 @@ ifxmips_mii_hw_receive(struct net_device* dev,struct dma_device_info* dma_dev)
return 0;
ifxmips_mii_hw_receive_err_exit:
- if (len == 0)
- {
+ if (len == 0) {
if (skb)
dev_kfree_skb_any(skb);
priv->stats.rx_errors++;
@@ -157,52 +148,48 @@ ifxmips_mii_hw_receive_err_exit:
}
}
-int
-ifxmips_mii_hw_tx(char *buf, int len, struct net_device *dev)
+int ifxmips_mii_hw_tx(char *buf, int len, struct net_device *dev)
{
int ret = 0;
struct ifxmips_mii_priv *priv = dev->priv;
- struct dma_device_info* dma_dev = priv->dma_device;
+ struct dma_device_info *dma_dev = priv->dma_device;
ret = dma_device_write(dma_dev, buf, len, priv->skb);
return ret;
}
-int
-ifxmips_mii_tx(struct sk_buff *skb, struct net_device *dev)
+int ifxmips_mii_tx(struct sk_buff *skb, struct net_device *dev)
{
int len;
char *data;
struct ifxmips_mii_priv *priv = dev->priv;
- struct dma_device_info* dma_dev = priv->dma_device;
+ struct dma_device_info *dma_dev = priv->dma_device;
len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len;
data = skb->data;
priv->skb = skb;
dev->trans_start = jiffies;
- // TODO we got more than 1 dma channel, so we should do something intelligent
- // here to select one
+ /* TODO: we got more than 1 dma channel,
+ so we should do something intelligent here to select one */
dma_dev->current_tx_chan = 0;
wmb();
- if (ifxmips_mii_hw_tx(data, len, dev) != len)
- {
+ if (ifxmips_mii_hw_tx(data, len, dev) != len) {
dev_kfree_skb_any(skb);
priv->stats.tx_errors++;
priv->stats.tx_dropped++;
} else {
priv->stats.tx_packets++;
- priv->stats.tx_bytes+=len;
+ priv->stats.tx_bytes += len;
}
return 0;
}
-void
-ifxmips_mii_tx_timeout(struct net_device *dev)
+void ifxmips_mii_tx_timeout(struct net_device *dev)
{
int i;
- struct ifxmips_mii_priv* priv = (struct ifxmips_mii_priv*)dev->priv;
+ struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)dev->priv;
priv->stats.tx_errors++;
for (i = 0; i < priv->dma_device->max_tx_chan_num; i++)
@@ -211,13 +198,11 @@ ifxmips_mii_tx_timeout(struct net_device *dev)
return;
}
-int
-dma_intr_handler(struct dma_device_info* dma_dev, int status)
+int dma_intr_handler(struct dma_device_info *dma_dev, int status)
{
int i;
- switch(status)
- {
+ switch (status) {
case RCV_INT:
ifxmips_mii_hw_receive(ifxmips_mii0_dev, dma_dev);
break;
@@ -225,9 +210,8 @@ dma_intr_handler(struct dma_device_info* dma_dev, int status)
case TX_BUF_FULL_INT:
printk(KERN_INFO "ifxmips_mii0: tx buffer full\n");
netif_stop_queue(ifxmips_mii0_dev);
- for (i = 0; i < dma_dev->max_tx_chan_num; i++)
- {
- if ((dma_dev->tx_chan[i])->control==IFXMIPS_DMA_CH_ON)
+ for (i = 0; i < dma_dev->max_tx_chan_num; i++) {
+ if ((dma_dev->tx_chan[i])->control == IFXMIPS_DMA_CH_ON)
dma_dev->tx_chan[i]->enable_irq(dma_dev->tx_chan[i]);
}
break;
@@ -243,8 +227,7 @@ dma_intr_handler(struct dma_device_info* dma_dev, int status)
return 0;
}
-unsigned char*
-ifxmips_etop_dma_buffer_alloc(int len, int *byte_offset, void **opt)
+unsigned char *ifxmips_etop_dma_buffer_alloc(int len, int *byte_offset, void **opt)
{
unsigned char *buffer = NULL;
struct sk_buff *skb = NULL;
@@ -253,36 +236,32 @@ ifxmips_etop_dma_buffer_alloc(int len, int *byte_offset, void **opt)
if (skb == NULL)
return NULL;
- buffer = (unsigned char*)(skb->data);
+ buffer = (unsigned char *)(skb->data);
skb_reserve(skb, 2);
- *(int*)opt = (int)skb;
+ *(int *)opt = (int)skb;
*byte_offset = 2;
return buffer;
}
-void
-ifxmips_etop_dma_buffer_free(unsigned char *dataptr, void *opt)
+void ifxmips_etop_dma_buffer_free(unsigned char *dataptr, void *opt)
{
struct sk_buff *skb = NULL;
- if (opt == NULL)
- {
+ if (opt == NULL) {
kfree(dataptr);
} else {
- skb = (struct sk_buff*)opt;
+ skb = (struct sk_buff *)opt;
dev_kfree_skb_any(skb);
}
}
-static struct net_device_stats*
-ifxmips_get_stats(struct net_device *dev)
+static struct net_device_stats *ifxmips_get_stats(struct net_device *dev)
{
return (struct net_device_stats *)dev->priv;
}
-static int
-ifxmips_mii_dev_init(struct net_device *dev)
+static int ifxmips_mii_dev_init(struct net_device *dev)
{
int i;
struct ifxmips_mii_priv *priv;
@@ -298,7 +277,7 @@ ifxmips_mii_dev_init(struct net_device *dev)
memset(dev->priv, 0, sizeof(struct ifxmips_mii_priv));
priv = dev->priv;
priv->dma_device = dma_device_reserve("PPE");
- if (!priv->dma_device){
+ if (!priv->dma_device) {
BUG();
return -ENODEV;
}
@@ -307,8 +286,7 @@ ifxmips_mii_dev_init(struct net_device *dev)
priv->dma_device->intr_handler = &dma_intr_handler;
priv->dma_device->max_rx_chan_num = 4;
- for (i = 0; i < priv->dma_device->max_rx_chan_num; i++)
- {
+ for (i = 0; i < priv->dma_device->max_rx_chan_num; i++) {
priv->dma_device->rx_chan[i]->packet_size = ETHERNET_PACKET_DMA_BUFFER_SIZE;
priv->dma_device->rx_chan[i]->control = IFXMIPS_DMA_CH_ON;
}
@@ -322,16 +300,14 @@ ifxmips_mii_dev_init(struct net_device *dev)
dma_device_register(priv->dma_device);
printk(KERN_INFO "ifxmips_mii0: using mac=");
- for (i = 0; i < 6; i++)
- {
+ for (i = 0; i < 6; i++) {
dev->dev_addr[i] = mac_addr[i];
printk("%02X%c", dev->dev_addr[i], (i == 5)?('\n'):(':'));
}
return 0;
}
-static void
-ifxmips_mii_chip_init(int mode)
+static void ifxmips_mii_chip_init(int mode)
{
ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_DMA);
ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_PPE);
@@ -345,19 +321,17 @@ ifxmips_mii_chip_init(int mode)
wmb();
}
-static int
-ifxmips_mii_probe(struct platform_device *dev)
+static int ifxmips_mii_probe(struct platform_device *dev)
{
int result = 0;
- unsigned char *mac = (unsigned char*)dev->dev.platform_data;
+ unsigned char *mac = (unsigned char *)dev->dev.platform_data;
ifxmips_mii0_dev = alloc_etherdev(sizeof(struct ifxmips_mii_priv));
ifxmips_mii0_dev->init = ifxmips_mii_dev_init;
memcpy(mac_addr, mac, 6);
strcpy(ifxmips_mii0_dev->name, "eth%d");
ifxmips_mii_chip_init(REV_MII_MODE);
result = register_netdev(ifxmips_mii0_dev);
- if (result)
- {
+ if (result) {
printk(KERN_INFO "ifxmips_mii0: error %i registering device \"%s\"\n", result, ifxmips_mii0_dev->name);
goto out;
}
@@ -368,10 +342,9 @@ out:
return result;
}
-static int
-ifxmips_mii_remove(struct platform_device *dev)
+static int ifxmips_mii_remove(struct platform_device *dev)
{
- struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv*)ifxmips_mii0_dev->priv;
+ struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)ifxmips_mii0_dev->priv;
printk(KERN_INFO "ifxmips_mii0: ifxmips_mii0 cleanup\n");
@@ -383,8 +356,7 @@ ifxmips_mii_remove(struct platform_device *dev)
return 0;
}
-static struct
-platform_driver ifxmips_mii_driver = {
+static struct platform_driver ifxmips_mii_driver = {
.probe = ifxmips_mii_probe,
.remove = ifxmips_mii_remove,
.driver = {
@@ -393,8 +365,7 @@ platform_driver ifxmips_mii_driver = {
},
};
-int __init
-ifxmips_mii_init(void)
+int __init ifxmips_mii_init(void)
{
int ret = platform_driver_register(&ifxmips_mii_driver);
if (ret)
@@ -402,8 +373,7 @@ ifxmips_mii_init(void)
return ret;
}
-static void __exit
-ifxmips_mii_cleanup(void)
+static void __exit ifxmips_mii_cleanup(void)
{
platform_driver_unregister(&ifxmips_mii_driver);
}
@@ -414,3 +384,4 @@ module_exit(ifxmips_mii_cleanup);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
MODULE_DESCRIPTION("ethernet map driver for IFXMIPS boards");
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-14 18:00:46 +0000