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 <linux/pci.h> 30 #include "common.h" 31 #ifdef CONFIG_STMMAC_TIMER 32 #include "stmmac_timer.h" 33 #endif 34 35 struct stmmac_priv { 36 /* Frequently used values are kept adjacent for cache effect */ 37 struct dma_desc *dma_tx ____cacheline_aligned; 38 dma_addr_t dma_tx_phy; 39 struct sk_buff **tx_skbuff; 40 unsigned int cur_tx; 41 unsigned int dirty_tx; 42 unsigned int dma_tx_size; 43 int tx_coalesce; 44 45 struct dma_desc *dma_rx ; 46 unsigned int cur_rx; 47 unsigned int dirty_rx; 48 struct sk_buff **rx_skbuff; 49 dma_addr_t *rx_skbuff_dma; 50 struct sk_buff_head rx_recycle; 51 52 struct net_device *dev; 53 dma_addr_t dma_rx_phy; 54 unsigned int dma_rx_size; 55 unsigned int dma_buf_sz; 56 struct device *device; 57 struct mac_device_info *hw; 58 void __iomem *ioaddr; 59 60 struct stmmac_extra_stats xstats; 61 struct napi_struct napi; 62 int no_csum_insertion; 63 64 struct phy_device *phydev; 65 int oldlink; 66 int speed; 67 int oldduplex; 68 unsigned int flow_ctrl; 69 unsigned int pause; 70 struct mii_bus *mii; 71 int mii_irq[PHY_MAX_ADDR]; 72 73 u32 msg_enable; 74 spinlock_t lock; 75 spinlock_t tx_lock; 76 int wolopts; 77 int wol_irq; 78 #ifdef CONFIG_STMMAC_TIMER 79 struct stmmac_timer *tm; 80 #endif 81 struct plat_stmmacenet_data *plat; 82 struct stmmac_counters mmc; 83 struct dma_features dma_cap; 84 int hw_cap_support; 85 #ifdef CONFIG_HAVE_CLK 86 struct clk *stmmac_clk; 87 #endif 88 int clk_csr; 89 int synopsys_id; 90 }; 91 92 extern int phyaddr; 93 94 extern int stmmac_mdio_unregister(struct net_device *ndev); 95 extern int stmmac_mdio_register(struct net_device *ndev); 96 extern void stmmac_set_ethtool_ops(struct net_device *netdev); 97 extern const struct stmmac_desc_ops enh_desc_ops; 98 extern const struct stmmac_desc_ops ndesc_ops; 99 int stmmac_freeze(struct net_device *ndev); 100 int stmmac_restore(struct net_device *ndev); 101 int stmmac_resume(struct net_device *ndev); 102 int stmmac_suspend(struct net_device *ndev); 103 int stmmac_dvr_remove(struct net_device *ndev); 104 struct stmmac_priv *stmmac_dvr_probe(struct device *device, 105 struct plat_stmmacenet_data *plat_dat, 106 void __iomem *addr); 107 108 #ifdef CONFIG_HAVE_CLK 109 static inline int stmmac_clk_enable(struct stmmac_priv *priv) 110 { 111 if (!IS_ERR(priv->stmmac_clk)) 112 return clk_prepare_enable(priv->stmmac_clk); 113 114 return 0; 115 } 116 117 static inline void stmmac_clk_disable(struct stmmac_priv *priv) 118 { 119 if (IS_ERR(priv->stmmac_clk)) 120 return; 121 122 clk_disable_unprepare(priv->stmmac_clk); 123 } 124 static inline int stmmac_clk_get(struct stmmac_priv *priv) 125 { 126 priv->stmmac_clk = clk_get(priv->device, NULL); 127 128 if (IS_ERR(priv->stmmac_clk)) 129 return PTR_ERR(priv->stmmac_clk); 130 131 return 0; 132 } 133 #else 134 static inline int stmmac_clk_enable(struct stmmac_priv *priv) 135 { 136 return 0; 137 } 138 static inline void stmmac_clk_disable(struct stmmac_priv *priv) 139 { 140 } 141 static inline int stmmac_clk_get(struct stmmac_priv *priv) 142 { 143 return 0; 144 } 145 #endif /* CONFIG_HAVE_CLK */ 146 147 148 #ifdef CONFIG_STMMAC_PLATFORM 149 extern struct platform_driver stmmac_pltfr_driver; 150 static inline int stmmac_register_platform(void) 151 { 152 int err; 153 154 err = platform_driver_register(&stmmac_pltfr_driver); 155 if (err) 156 pr_err("stmmac: failed to register the platform driver\n"); 157 158 return err; 159 } 160 static inline void stmmac_unregister_platform(void) 161 { 162 platform_driver_register(&stmmac_pltfr_driver); 163 } 164 #else 165 static inline int stmmac_register_platform(void) 166 { 167 pr_debug("stmmac: do not register the platf driver\n"); 168 169 return -EINVAL; 170 } 171 static inline void stmmac_unregister_platform(void) 172 { 173 } 174 #endif /* CONFIG_STMMAC_PLATFORM */ 175 176 #ifdef CONFIG_STMMAC_PCI 177 extern struct pci_driver stmmac_pci_driver; 178 static inline int stmmac_register_pci(void) 179 { 180 int err; 181 182 err = pci_register_driver(&stmmac_pci_driver); 183 if (err) 184 pr_err("stmmac: failed to register the PCI driver\n"); 185 186 return err; 187 } 188 static inline void stmmac_unregister_pci(void) 189 { 190 pci_unregister_driver(&stmmac_pci_driver); 191 } 192 #else 193 static inline int stmmac_register_pci(void) 194 { 195 pr_debug("stmmac: do not register the PCI driver\n"); 196 197 return -EINVAL; 198 } 199 static inline void stmmac_unregister_pci(void) 200 { 201 } 202 #endif /* CONFIG_STMMAC_PCI */ 203