drivers/net/wireless/rtlwifi/pci.h

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2012  Realtek Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  * wlanfae <wlanfae@realtek.com>
  23  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  24  * Hsinchu 300, Taiwan.
  25  *
  26  * Larry Finger <Larry.Finger@lwfinger.net>
  27  *
  28  *****************************************************************************/
  29
  30 #ifndef __RTL_PCI_H__
  31 #define __RTL_PCI_H__
  32
  33 #include <linux/pci.h>
  34 /*
  35 1: MSDU packet queue,
  36 2: Rx Command Queue
  37 */
  38 #define RTL_PCI_RX_MPDU_QUEUE                   0
  39 #define RTL_PCI_RX_CMD_QUEUE                    1
  40 #define RTL_PCI_MAX_RX_QUEUE                    2
  41
  42 #define RTL_PCI_MAX_RX_COUNT                    512/*64*/
  43 #define RTL_PCI_MAX_TX_QUEUE_COUNT              9
  44
  45 #define RT_TXDESC_NUM                           128
  46 #define TX_DESC_NUM_92E                         512
  47 #define RT_TXDESC_NUM_BE_QUEUE                  256
  48
  49 #define BK_QUEUE                                0
  50 #define BE_QUEUE                                1
  51 #define VI_QUEUE                                2
  52 #define VO_QUEUE                                3
  53 #define BEACON_QUEUE                            4
  54 #define TXCMD_QUEUE                             5
  55 #define MGNT_QUEUE                              6
  56 #define HIGH_QUEUE                              7
  57 #define HCCA_QUEUE                              8
  58
  59 #define RTL_PCI_DEVICE(vend, dev, cfg)  \
  60         .vendor = (vend), \
  61         .device = (dev), \
  62         .subvendor = PCI_ANY_ID, \
  63         .subdevice = PCI_ANY_ID,\
  64         .driver_data = (kernel_ulong_t)&(cfg)
  65
  66 #define INTEL_VENDOR_ID                         0x8086
  67 #define SIS_VENDOR_ID                           0x1039
  68 #define ATI_VENDOR_ID                           0x1002
  69 #define ATI_DEVICE_ID                           0x7914
  70 #define AMD_VENDOR_ID                           0x1022
  71
  72 #define PCI_MAX_BRIDGE_NUMBER                   255
  73 #define PCI_MAX_DEVICES                         32
  74 #define PCI_MAX_FUNCTION                        8
  75
  76 #define PCI_CONF_ADDRESS        0x0CF8  /*PCI Configuration Space Address */
  77 #define PCI_CONF_DATA           0x0CFC  /*PCI Configuration Space Data */
  78
  79 #define PCI_CLASS_BRIDGE_DEV            0x06
  80 #define PCI_SUBCLASS_BR_PCI_TO_PCI      0x04
  81 #define PCI_CAPABILITY_ID_PCI_EXPRESS   0x10
  82 #define PCI_CAP_ID_EXP                  0x10
  83
  84 #define U1DONTCARE                      0xFF
  85 #define U2DONTCARE                      0xFFFF
  86 #define U4DONTCARE                      0xFFFFFFFF
  87
  88 #define RTL_PCI_8192_DID        0x8192  /*8192 PCI-E */
  89 #define RTL_PCI_8192SE_DID      0x8192  /*8192 SE */
  90 #define RTL_PCI_8174_DID        0x8174  /*8192 SE */
  91 #define RTL_PCI_8173_DID        0x8173  /*8191 SE Crab */
  92 #define RTL_PCI_8172_DID        0x8172  /*8191 SE RE */
  93 #define RTL_PCI_8171_DID        0x8171  /*8191 SE Unicron */
  94 #define RTL_PCI_8723AE_DID      0x8723  /*8723AE */
  95 #define RTL_PCI_0045_DID        0x0045  /*8190 PCI for Ceraga */
  96 #define RTL_PCI_0046_DID        0x0046  /*8190 Cardbus for Ceraga */
  97 #define RTL_PCI_0044_DID        0x0044  /*8192e PCIE for Ceraga */
  98 #define RTL_PCI_0047_DID        0x0047  /*8192e Express Card for Ceraga */
  99 #define RTL_PCI_700F_DID        0x700F
 100 #define RTL_PCI_701F_DID        0x701F
 101 #define RTL_PCI_DLINK_DID       0x3304
 102 #define RTL_PCI_8723AE_DID      0x8723  /*8723e */
 103 #define RTL_PCI_8192CET_DID     0x8191  /*8192ce */
 104 #define RTL_PCI_8192CE_DID      0x8178  /*8192ce */
 105 #define RTL_PCI_8191CE_DID      0x8177  /*8192ce */
 106 #define RTL_PCI_8188CE_DID      0x8176  /*8192ce */
 107 #define RTL_PCI_8192CU_DID      0x8191  /*8192ce */
 108 #define RTL_PCI_8192DE_DID      0x8193  /*8192de */
 109 #define RTL_PCI_8192DE_DID2     0x002B  /*92DE*/
 110 #define RTL_PCI_8188EE_DID      0x8179  /*8188ee*/
 111 #define RTL_PCI_8723BE_DID      0xB723  /*8723be*/
 112 #define RTL_PCI_8192EE_DID      0x818B  /*8192ee*/
 113 #define RTL_PCI_8821AE_DID      0x8821  /*8821ae*/
 114 #define RTL_PCI_8812AE_DID      0x8812  /*8812ae*/
 115
 116 /*8192 support 16 pages of IO registers*/
 117 #define RTL_MEM_MAPPED_IO_RANGE_8190PCI         0x1000
 118 #define RTL_MEM_MAPPED_IO_RANGE_8192PCIE        0x4000
 119 #define RTL_MEM_MAPPED_IO_RANGE_8192SE          0x4000
 120 #define RTL_MEM_MAPPED_IO_RANGE_8192CE          0x4000
 121 #define RTL_MEM_MAPPED_IO_RANGE_8192DE          0x4000
 122
 123 #define RTL_PCI_REVISION_ID_8190PCI             0x00
 124 #define RTL_PCI_REVISION_ID_8192PCIE            0x01
 125 #define RTL_PCI_REVISION_ID_8192SE              0x10
 126 #define RTL_PCI_REVISION_ID_8192CE              0x1
 127 #define RTL_PCI_REVISION_ID_8192DE              0x0
 128
 129 #define RTL_DEFAULT_HARDWARE_TYPE       HARDWARE_TYPE_RTL8192CE
 130
 131 enum pci_bridge_vendor {
 132         PCI_BRIDGE_VENDOR_INTEL = 0x0,  /*0b'0000,0001 */
 133         PCI_BRIDGE_VENDOR_ATI,          /*0b'0000,0010*/
 134         PCI_BRIDGE_VENDOR_AMD,          /*0b'0000,0100*/
 135         PCI_BRIDGE_VENDOR_SIS,          /*0b'0000,1000*/
 136         PCI_BRIDGE_VENDOR_UNKNOWN,      /*0b'0100,0000*/
 137         PCI_BRIDGE_VENDOR_MAX,
 138 };
 139
 140 struct rtl_pci_capabilities_header {
 141         u8 capability_id;
 142         u8 next;
 143 };
 144
 145 /* In new TRX flow, Buffer_desc is new concept
 146  * But TX wifi info == TX descriptor in old flow
 147  * RX wifi info == RX descriptor in old flow
 148  */
 149 struct rtl_tx_buffer_desc {
 150 #if (RTL8192EE_SEG_NUM == 2)
 151         u32 dword[2*(DMA_IS_64BIT + 1)*8]; /*seg = 8*/
 152 #elif (RTL8192EE_SEG_NUM == 1)
 153         u32 dword[2*(DMA_IS_64BIT + 1)*4]; /*seg = 4*/
 154 #elif (RTL8192EE_SEG_NUM == 0)
 155         u32 dword[2*(DMA_IS_64BIT + 1)*2]; /*seg = 2*/
 156 #endif
 157 } __packed;
 158
 159 struct rtl_tx_desc {
 160         u32 dword[16];
 161 } __packed;
 162
 163 struct rtl_rx_buffer_desc { /*rx buffer desc*/
 164         u32 dword[2];
 165 } __packed;
 166
 167 struct rtl_rx_desc { /*old: rx desc new: rx wifi info*/
 168         u32 dword[8];
 169 } __packed;
 170
 171 struct rtl_tx_cmd_desc {
 172         u32 dword[16];
 173 } __packed;
 174
 175 struct rtl8192_tx_ring {
 176         struct rtl_tx_desc *desc;
 177         dma_addr_t dma;
 178         unsigned int idx;
 179         unsigned int entries;
 180         struct sk_buff_head queue;
 181         /*add for new trx flow*/
 182         struct rtl_tx_buffer_desc *buffer_desc; /*tx buffer descriptor*/
 183         dma_addr_t buffer_desc_dma; /*tx bufferd desc dma memory*/
 184         u16 avl_desc; /* available_desc_to_write */
 185         u16 cur_tx_wp; /* current_tx_write_point */
 186         u16 cur_tx_rp; /* current_tx_read_point */
 187 };
 188
 189 struct rtl8192_rx_ring {
 190         struct rtl_rx_desc *desc;
 191         dma_addr_t dma;
 192         unsigned int idx;
 193         struct sk_buff *rx_buf[RTL_PCI_MAX_RX_COUNT];
 194         /*add for new trx flow*/
 195         struct rtl_rx_buffer_desc *buffer_desc; /*rx buffer descriptor*/
 196         u16 next_rx_rp; /* next_rx_read_point */
 197 };
 198
 199 struct rtl_pci {
 200         struct pci_dev *pdev;
 201         bool irq_enabled;
 202
 203         bool driver_is_goingto_unload;
 204         bool up_first_time;
 205         bool first_init;
 206         bool being_init_adapter;
 207         bool init_ready;
 208
 209         /*Tx */
 210         struct rtl8192_tx_ring tx_ring[RTL_PCI_MAX_TX_QUEUE_COUNT];
 211         int txringcount[RTL_PCI_MAX_TX_QUEUE_COUNT];
 212         u32 transmit_config;
 213
 214         /*Rx */
 215         struct rtl8192_rx_ring rx_ring[RTL_PCI_MAX_RX_QUEUE];
 216         int rxringcount;
 217         u16 rxbuffersize;
 218         u32 receive_config;
 219
 220         /*irq */
 221         u8 irq_alloc;
 222         u32 irq_mask[2];
 223         u32 sys_irq_mask;
 224
 225         /*Bcn control register setting */
 226         u32 reg_bcn_ctrl_val;
 227
 228          /*ASPM*/ u8 const_pci_aspm;
 229         u8 const_amdpci_aspm;
 230         u8 const_hwsw_rfoff_d3;
 231         u8 const_support_pciaspm;
 232         /*pci-e bridge */
 233         u8 const_hostpci_aspm_setting;
 234         /*pci-e device */
 235         u8 const_devicepci_aspm_setting;
 236         /*If it supports ASPM, Offset[560h] = 0x40,
 237            otherwise Offset[560h] = 0x00. */
 238         bool support_aspm;
 239         bool support_backdoor;
 240
 241         /*QOS & EDCA */
 242         enum acm_method acm_method;
 243
 244         u16 shortretry_limit;
 245         u16 longretry_limit;
 246
 247         /* MSI support */
 248         bool msi_support;
 249         bool using_msi;
 250 };
 251
 252 struct mp_adapter {
 253         u8 linkctrl_reg;
 254
 255         u8 busnumber;
 256         u8 devnumber;
 257         u8 funcnumber;
 258
 259         u8 pcibridge_busnum;
 260         u8 pcibridge_devnum;
 261         u8 pcibridge_funcnum;
 262
 263         u8 pcibridge_vendor;
 264         u16 pcibridge_vendorid;
 265         u16 pcibridge_deviceid;
 266
 267         u8 num4bytes;
 268
 269         u8 pcibridge_pciehdr_offset;
 270         u8 pcibridge_linkctrlreg;
 271
 272         bool amd_l1_patch;
 273 };
 274
 275 struct rtl_pci_priv {
 276         struct rtl_pci dev;
 277         struct mp_adapter ndis_adapter;
 278         struct rtl_led_ctl ledctl;
 279         struct bt_coexist_info bt_coexist;
 280 };
 281
 282 #define rtl_pcipriv(hw)         (((struct rtl_pci_priv *)(rtl_priv(hw))->priv))
 283 #define rtl_pcidev(pcipriv)     (&((pcipriv)->dev))
 284
 285 int rtl_pci_reset_trx_ring(struct ieee80211_hw *hw);
 286
 287 extern struct rtl_intf_ops rtl_pci_ops;
 288
 289 int rtl_pci_probe(struct pci_dev *pdev,
 290                             const struct pci_device_id *id);
 291 void rtl_pci_disconnect(struct pci_dev *pdev);
 292 #ifdef CONFIG_PM_SLEEP
 293 int rtl_pci_suspend(struct device *dev);
 294 int rtl_pci_resume(struct device *dev);
 295 #endif /* CONFIG_PM_SLEEP */
 296 static inline u8 pci_read8_sync(struct rtl_priv *rtlpriv, u32 addr)
 297 {
 298         return readb((u8 __iomem *) rtlpriv->io.pci_mem_start + addr);
 299 }
 300
 301 static inline u16 pci_read16_sync(struct rtl_priv *rtlpriv, u32 addr)
 302 {
 303         return readw((u8 __iomem *) rtlpriv->io.pci_mem_start + addr);
 304 }
 305
 306 static inline u32 pci_read32_sync(struct rtl_priv *rtlpriv, u32 addr)
 307 {
 308         return readl((u8 __iomem *) rtlpriv->io.pci_mem_start + addr);
 309 }
 310
 311 static inline void pci_write8_async(struct rtl_priv *rtlpriv, u32 addr, u8 val)
 312 {
 313         writeb(val, (u8 __iomem *) rtlpriv->io.pci_mem_start + addr);
 314 }
 315
 316 static inline void pci_write16_async(struct rtl_priv *rtlpriv,
 317                                      u32 addr, u16 val)
 318 {
 319         writew(val, (u8 __iomem *) rtlpriv->io.pci_mem_start + addr);
 320 }
 321
 322 static inline void pci_write32_async(struct rtl_priv *rtlpriv,
 323                                      u32 addr, u32 val)
 324 {
 325         writel(val, (u8 __iomem *) rtlpriv->io.pci_mem_start + addr);
 326 }
 327
 328 static inline u16 calc_fifo_space(u16 rp, u16 wp)
 329 {
 330         if (rp <= wp)
 331                 return RTL_PCI_MAX_RX_COUNT - 1 + rp - wp;
 332         return rp - wp - 1;
 333 }
 334
 335 #endif