drivers/net/ethernet/stmicro/stmmac/stmmac.h

   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 */