drivers/net/wireless/rtl818x/rtl8187.h

   1 /*
   2  * Definitions for RTL8187 hardware
   3  *
   4  * Copyright 2007 Michael Wu <flamingice@sourmilk.net>
   5  * Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
   6  *
   7  * Based on the r8187 driver, which is:
   8  * Copyright 2005 Andrea Merello <andreamrl@tiscali.it>, et al.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #ifndef RTL8187_H
  16 #define RTL8187_H
  17
  18 #include "rtl818x.h"
  19
  20 #define RTL8187_EEPROM_TXPWR_BASE       0x05
  21 #define RTL8187_EEPROM_MAC_ADDR         0x07
  22 #define RTL8187_EEPROM_TXPWR_CHAN_1     0x16    /* 3 channels */
  23 #define RTL8187_EEPROM_TXPWR_CHAN_6     0x1B    /* 2 channels */
  24 #define RTL8187_EEPROM_TXPWR_CHAN_4     0x3D    /* 2 channels */
  25
  26 #define RTL8187_REQT_READ       0xC0
  27 #define RTL8187_REQT_WRITE      0x40
  28 #define RTL8187_REQ_GET_REG     0x05
  29 #define RTL8187_REQ_SET_REG     0x05
  30
  31 #define RTL8187_MAX_RX          0x9C4
  32
  33 struct rtl8187_rx_info {
  34         struct urb *urb;
  35         struct ieee80211_hw *dev;
  36 };
  37
  38 struct rtl8187_rx_hdr {
  39         __le32 flags;
  40         u8 noise;
  41         u8 signal;
  42         u8 agc;
  43         u8 reserved;
  44         __le64 mac_time;
  45 } __attribute__((packed));
  46
  47 struct rtl8187b_rx_hdr {
  48         __le32 flags;
  49         __le64 mac_time;
  50         u8 sq;
  51         u8 rssi;
  52         u8 agc;
  53         u8 flags2;
  54         __le16 snr_long2end;
  55         s8 pwdb_g12;
  56         u8 fot;
  57 } __attribute__((packed));
  58
  59 /* {rtl8187,rtl8187b}_tx_info is in skb */
  60
  61 struct rtl8187_tx_hdr {
  62         __le32 flags;
  63         __le16 rts_duration;
  64         __le16 len;
  65         __le32 retry;
  66 } __attribute__((packed));
  67
  68 struct rtl8187b_tx_hdr {
  69         __le32 flags;
  70         __le16 rts_duration;
  71         __le16 len;
  72         __le32 unused_1;
  73         __le16 unused_2;
  74         __le16 tx_duration;
  75         __le32 unused_3;
  76         __le32 retry;
  77         __le32 unused_4[2];
  78 } __attribute__((packed));
  79
  80 enum {
  81         DEVICE_RTL8187,
  82         DEVICE_RTL8187B
  83 };
  84
  85 struct rtl8187_priv {
  86         /* common between rtl818x drivers */
  87         struct rtl818x_csr *map;
  88         const struct rtl818x_rf_ops *rf;
  89         struct ieee80211_vif *vif;
  90         int mode;
  91         /* The mutex protects the TX loopback state.
  92          * Any attempt to set channels concurrently locks the device.
  93          */
  94         struct mutex conf_mutex;
  95
  96         /* rtl8187 specific */
  97         struct ieee80211_channel channels[14];
  98         struct ieee80211_rate rates[12];
  99         struct ieee80211_supported_band band;
 100         struct usb_device *udev;
 101         u32 rx_conf;
 102         struct usb_anchor anchored;
 103         struct delayed_work work;
 104         struct ieee80211_hw *dev;
 105         u16 txpwr_base;
 106         u8 asic_rev;
 107         u8 is_rtl8187b;
 108         enum {
 109                 RTL8187BvB,
 110                 RTL8187BvD,
 111                 RTL8187BvE
 112         } hw_rev;
 113         struct sk_buff_head rx_queue;
 114         u8 signal;
 115         u8 quality;
 116         u8 noise;
 117         u8 slot_time;
 118         u8 aifsn[4];
 119         struct {
 120                 __le64 buf;
 121                 struct sk_buff_head queue;
 122         } b_tx_status; /* This queue is used by both -b and non-b devices */
 123         struct mutex io_mutex;
 124         union {
 125                 u8 bits8;
 126                 __le16 bits16;
 127                 __le32 bits32;
 128         } *io_dmabuf;
 129 };
 130
 131 void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data);
 132
 133 static inline u8 rtl818x_ioread8_idx(struct rtl8187_priv *priv,
 134                                      u8 *addr, u8 idx)
 135 {
 136         u8 val;
 137
 138         mutex_lock(&priv->io_mutex);
 139         usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
 140                         RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
 141                         (unsigned long)addr, idx & 0x03,
 142                         &priv->io_dmabuf->bits8, sizeof(val), HZ / 2);
 143
 144         val = priv->io_dmabuf->bits8;
 145         mutex_unlock(&priv->io_mutex);
 146
 147         return val;
 148 }
 149
 150 static inline u8 rtl818x_ioread8(struct rtl8187_priv *priv, u8 *addr)
 151 {
 152         return rtl818x_ioread8_idx(priv, addr, 0);
 153 }
 154
 155 static inline u16 rtl818x_ioread16_idx(struct rtl8187_priv *priv,
 156                                        __le16 *addr, u8 idx)
 157 {
 158         __le16 val;
 159
 160         mutex_lock(&priv->io_mutex);
 161         usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
 162                         RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
 163                         (unsigned long)addr, idx & 0x03,
 164                         &priv->io_dmabuf->bits16, sizeof(val), HZ / 2);
 165
 166         val = priv->io_dmabuf->bits16;
 167         mutex_unlock(&priv->io_mutex);
 168
 169         return le16_to_cpu(val);
 170 }
 171
 172 static inline u16 rtl818x_ioread16(struct rtl8187_priv *priv, __le16 *addr)
 173 {
 174         return rtl818x_ioread16_idx(priv, addr, 0);
 175 }
 176
 177 static inline u32 rtl818x_ioread32_idx(struct rtl8187_priv *priv,
 178                                        __le32 *addr, u8 idx)
 179 {
 180         __le32 val;
 181
 182         mutex_lock(&priv->io_mutex);
 183         usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
 184                         RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
 185                         (unsigned long)addr, idx & 0x03,
 186                         &priv->io_dmabuf->bits32, sizeof(val), HZ / 2);
 187
 188         val = priv->io_dmabuf->bits32;
 189         mutex_unlock(&priv->io_mutex);
 190
 191         return le32_to_cpu(val);
 192 }
 193
 194 static inline u32 rtl818x_ioread32(struct rtl8187_priv *priv, __le32 *addr)
 195 {
 196         return rtl818x_ioread32_idx(priv, addr, 0);
 197 }
 198
 199 static inline void rtl818x_iowrite8_idx(struct rtl8187_priv *priv,
 200                                         u8 *addr, u8 val, u8 idx)
 201 {
 202         mutex_lock(&priv->io_mutex);
 203
 204         priv->io_dmabuf->bits8 = val;
 205         usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
 206                         RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
 207                         (unsigned long)addr, idx & 0x03,
 208                         &priv->io_dmabuf->bits8, sizeof(val), HZ / 2);
 209
 210         mutex_unlock(&priv->io_mutex);
 211 }
 212
 213 static inline void rtl818x_iowrite8(struct rtl8187_priv *priv, u8 *addr, u8 val)
 214 {
 215         rtl818x_iowrite8_idx(priv, addr, val, 0);
 216 }
 217
 218 static inline void rtl818x_iowrite16_idx(struct rtl8187_priv *priv,
 219                                          __le16 *addr, u16 val, u8 idx)
 220 {
 221         mutex_lock(&priv->io_mutex);
 222
 223         priv->io_dmabuf->bits16 = cpu_to_le16(val);
 224         usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
 225                         RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
 226                         (unsigned long)addr, idx & 0x03,
 227                         &priv->io_dmabuf->bits16, sizeof(val), HZ / 2);
 228
 229         mutex_unlock(&priv->io_mutex);
 230 }
 231
 232 static inline void rtl818x_iowrite16(struct rtl8187_priv *priv, __le16 *addr,
 233                                      u16 val)
 234 {
 235         rtl818x_iowrite16_idx(priv, addr, val, 0);
 236 }
 237
 238 static inline void rtl818x_iowrite32_idx(struct rtl8187_priv *priv,
 239                                          __le32 *addr, u32 val, u8 idx)
 240 {
 241         mutex_lock(&priv->io_mutex);
 242
 243         priv->io_dmabuf->bits32 = cpu_to_le32(val);
 244         usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
 245                         RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
 246                         (unsigned long)addr, idx & 0x03,
 247                         &priv->io_dmabuf->bits32, sizeof(val), HZ / 2);
 248
 249         mutex_unlock(&priv->io_mutex);
 250 }
 251
 252 static inline void rtl818x_iowrite32(struct rtl8187_priv *priv, __le32 *addr,
 253                                      u32 val)
 254 {
 255         rtl818x_iowrite32_idx(priv, addr, val, 0);
 256 }
 257
 258 #endif /* RTL8187_H */