1 /******************************************************************************* 2 Copyright (C) 2007-2009 STMicroelectronics Ltd 3 4 This program is free software; you can redistribute it and/or modify it 5 under the terms and conditions of the GNU General Public License, 6 version 2, as published by the Free Software Foundation. 7 8 This program is distributed in the hope it will be useful, but WITHOUT 9 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 11 more details. 12 13 You should have received a copy of the GNU General Public License along with 14 this program; if not, write to the Free Software Foundation, Inc., 15 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 16 17 The full GNU General Public License is included in this distribution in 18 the file called "COPYING". 19 20 Author: Giuseppe Cavallaro <peppe.cavallaro@st.com> 21 *******************************************************************************/ 22 23 #define STMMAC_RESOURCE_NAME "stmmaceth" 24 #define DRV_MODULE_VERSION "March_2012" 25 26 #include <linux/clk.h> 27 #include <linux/stmmac.h> 28 #include <linux/phy.h> 29 #include "common.h" 30 #ifdef CONFIG_STMMAC_TIMER 31 #include "stmmac_timer.h" 32 #endif 33 34 struct stmmac_priv { 35 /* Frequently used values are kept adjacent for cache effect */ 36 struct dma_desc *dma_tx ____cacheline_aligned; 37 dma_addr_t dma_tx_phy; 38 struct sk_buff **tx_skbuff; 39 unsigned int cur_tx; 40 unsigned int dirty_tx; 41 unsigned int dma_tx_size; 42 int tx_coalesce; 43 44 struct dma_desc *dma_rx ; 45 unsigned int cur_rx; 46 unsigned int dirty_rx; 47 struct sk_buff **rx_skbuff; 48 dma_addr_t *rx_skbuff_dma; 49 struct sk_buff_head rx_recycle; 50 51 struct net_device *dev; 52 dma_addr_t dma_rx_phy; 53 unsigned int dma_rx_size; 54 unsigned int dma_buf_sz; 55 struct device *device; 56 struct mac_device_info *hw; 57 void __iomem *ioaddr; 58 59 struct stmmac_extra_stats xstats; 60 struct napi_struct napi; 61 int no_csum_insertion; 62 63 struct phy_device *phydev; 64 int oldlink; 65 int speed; 66 int oldduplex; 67 unsigned int flow_ctrl; 68 unsigned int pause; 69 struct mii_bus *mii; 70 int mii_irq[PHY_MAX_ADDR]; 71 72 u32 msg_enable; 73 spinlock_t lock; 74 spinlock_t tx_lock; 75 int wolopts; 76 int wol_irq; 77 #ifdef CONFIG_STMMAC_TIMER 78 struct stmmac_timer *tm; 79 #endif 80 struct plat_stmmacenet_data *plat; 81 struct stmmac_counters mmc; 82 struct dma_features dma_cap; 83 int hw_cap_support; 84 #ifdef CONFIG_HAVE_CLK 85 struct clk *stmmac_clk; 86 #endif 87 int clk_csr; 88 }; 89 90 extern int phyaddr; 91 92 extern int stmmac_mdio_unregister(struct net_device *ndev); 93 extern int stmmac_mdio_register(struct net_device *ndev); 94 extern void stmmac_set_ethtool_ops(struct net_device *netdev); 95 extern const struct stmmac_desc_ops enh_desc_ops; 96 extern const struct stmmac_desc_ops ndesc_ops; 97 98 int stmmac_freeze(struct net_device *ndev); 99 int stmmac_restore(struct net_device *ndev); 100 int stmmac_resume(struct net_device *ndev); 101 int stmmac_suspend(struct net_device *ndev); 102 int stmmac_dvr_remove(struct net_device *ndev); 103 struct stmmac_priv *stmmac_dvr_probe(struct device *device, 104 struct plat_stmmacenet_data *plat_dat, 105 void __iomem *addr); 106 107 #ifdef CONFIG_HAVE_CLK 108 static inline int stmmac_clk_enable(struct stmmac_priv *priv) 109 { 110 if (!IS_ERR(priv->stmmac_clk)) 111 return clk_enable(priv->stmmac_clk); 112 113 return 0; 114 } 115 116 static inline void stmmac_clk_disable(struct stmmac_priv *priv) 117 { 118 if (IS_ERR(priv->stmmac_clk)) 119 return; 120 121 clk_disable(priv->stmmac_clk); 122 } 123 static inline int stmmac_clk_get(struct stmmac_priv *priv) 124 { 125 priv->stmmac_clk = clk_get(priv->device, NULL); 126 127 if (IS_ERR(priv->stmmac_clk)) 128 return PTR_ERR(priv->stmmac_clk); 129 130 return 0; 131 } 132 #else 133 static inline int stmmac_clk_enable(struct stmmac_priv *priv) 134 { 135 return 0; 136 } 137 static inline void stmmac_clk_disable(struct stmmac_priv *priv) 138 { 139 } 140 static inline int stmmac_clk_get(struct stmmac_priv *priv) 141 { 142 return 0; 143 } 144 #endif /* CONFIG_HAVE_CLK */ 145