X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/b6fb9a7180b9b173ebf5e369fe8cd28613d6742d..6ad1668c37fef80075e1a69b0ef71d0f8bbeb9c3:/target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c?ds=sidebyside diff --git a/target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c b/target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c index cd3075c1d..695e0b77a 100644 --- a/target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c +++ b/target/linux/ifxmips/files/drivers/net/ifxmips_mii0.c @@ -14,7 +14,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. * * Copyright (C) 2005 Wu Qi Ming - * Copyright (C) 2008 John Crispin + * Copyright (C) 2008 John Crispin */ #include @@ -22,7 +22,7 @@ #include #include #include -#include +#include #include #include #include @@ -32,96 +32,96 @@ #include #include #include -#include #include -#include +#include +#include #include -#include #include #include +struct ifxmips_mii_priv { + struct net_device_stats stats; + struct dma_device_info *dma_device; + struct sk_buff *skb; +}; + 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) ; 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++) - { - if((dma_dev->rx_chan[i])->control == IFXMIPS_DMA_CH_ON) + 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]); } netif_start_queue(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++) + for (i = 0; i < dma_dev->max_rx_chan_num; i++) dma_dev->rx_chan[i]->close(dma_dev->rx_chan[i]); netif_stop_queue(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; @@ -137,9 +137,8 @@ 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(skb) + if (len == 0) { + if (skb) dev_kfree_skb_any(skb); priv->stats.rx_errors++; priv->stats.rx_dropped++; @@ -149,67 +148,61 @@ 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++) + for (i = 0; i < priv->dma_device->max_tx_chan_num; i++) priv->dma_device->tx_chan[i]->disable_irq(priv->dma_device->tx_chan[i]); netif_wake_queue(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; @@ -217,15 +210,14 @@ 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; case TRANSMIT_CPT_INT: - for(i = 0; i < dma_dev->max_tx_chan_num; i++) + for (i = 0; i < dma_dev->max_tx_chan_num; i++) dma_dev->tx_chan[i]->disable_irq(dma_dev->tx_chan[i]); netif_wake_queue(ifxmips_mii0_dev); @@ -235,46 +227,41 @@ 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; skb = dev_alloc_skb(ETHERNET_PACKET_DMA_BUFFER_SIZE); - if(skb == NULL) + 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; @@ -290,7 +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; } @@ -299,14 +286,13 @@ 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; } - for(i = 0; i < priv->dma_device->max_tx_chan_num; i++) - if(i == 0) + for (i = 0; i < priv->dma_device->max_tx_chan_num; i++) + if (i == 0) priv->dma_device->tx_chan[i]->control = IFXMIPS_DMA_CH_ON; else priv->dma_device->tx_chan[i]->control = IFXMIPS_DMA_CH_OFF; @@ -314,56 +300,51 @@ 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); - if(mode == REV_MII_MODE) + if (mode == REV_MII_MODE) ifxmips_w32_mask(PPE32_MII_MASK, PPE32_MII_REVERSE, IFXMIPS_PPE32_CFG); - else if(mode == MII_MODE) + else if (mode == MII_MODE) ifxmips_w32_mask(PPE32_MII_MASK, PPE32_MII_NORMAL, IFXMIPS_PPE32_CFG); ifxmips_w32(PPE32_PLEN_UNDER | PPE32_PLEN_OVER, IFXMIPS_PPE32_IG_PLEN_CTRL); ifxmips_w32(PPE32_CGEN, IFXMIPS_PPE32_ENET_MAC_CFG); wmb(); } -static int -ifxmips_mii_probe(struct platform_device *dev) +static int ifxmips_mii_probe(struct platform_device *dev) { int result = 0; - struct ifxmips_mac *mac = (struct ifxmips_mac*)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->mac, 6); + 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; } - ifxmips_mii_chip_init(REV_MII_MODE); printk(KERN_INFO "ifxmips_mii0: driver loaded!\n"); 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"); @@ -375,8 +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 = { @@ -385,8 +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) @@ -394,8 +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); } @@ -406,3 +384,4 @@ module_exit(ifxmips_mii_cleanup); MODULE_LICENSE("GPL"); MODULE_AUTHOR("John Crispin "); MODULE_DESCRIPTION("ethernet map driver for IFXMIPS boards"); +