drivers/net/wireless/rtl818x/rtl8187/rtl8187.h

   1 /*
   2  * Definitions for RTL8187 hardware
   3  *
   4  * Copyright 2007 Michael Wu <flamingice@sourmilk.net>
   5  * Copyright 2007 Andrea Merello <andrea.merello@gmail.com>
   6  *
   7  * Based on the r8187 driver, which is:
   8  * Copyright 2005 Andrea Merello <andrea.merello@gmail.com>, 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 <linux/cache.h>
  19
  20 #include "rtl818x.h"
  21 #include "leds.h"
  22
  23 #define RTL8187_EEPROM_TXPWR_BASE       0x05
  24 #define RTL8187_EEPROM_MAC_ADDR         0x07
  25 #define RTL8187_EEPROM_TXPWR_CHAN_1     0x16    /* 3 channels */
  26 #define RTL8187_EEPROM_TXPWR_CHAN_6     0x1B    /* 2 channels */
  27 #define RTL8187_EEPROM_TXPWR_CHAN_4     0x3D    /* 2 channels */
  28 #define RTL8187_EEPROM_SELECT_GPIO      0x3B
  29
  30 #define RTL8187_REQT_READ       0xC0
  31 #define RTL8187_REQT_WRITE      0x40
  32 #define RTL8187_REQ_GET_REG     0x05
  33 #define RTL8187_REQ_SET_REG     0x05
  34
  35 #define RTL8187_MAX_RX          0x9C4
  36
  37 #define RFKILL_MASK_8187_89_97  0x2
  38 #define RFKILL_MASK_8198        0x4
  39
  40 #define RETRY_COUNT             7
  41
  42 struct rtl8187_rx_info {
  43         struct urb *urb;
  44         struct ieee80211_hw *dev;
  45 };
  46
  47 struct rtl8187_rx_hdr {
  48         __le32 flags;
  49         u8 noise;
  50         u8 signal;
  51         u8 agc;
  52         u8 reserved;
  53         __le64 mac_time;
  54 } __packed;
  55
  56 struct rtl8187b_rx_hdr {
  57         __le32 flags;
  58         __le64 mac_time;
  59         u8 sq;
  60         u8 rssi;
  61         u8 agc;
  62         u8 flags2;
  63         __le16 snr_long2end;
  64         s8 pwdb_g12;
  65         u8 fot;
  66 } __packed;
  67
  68 /* {rtl8187,rtl8187b}_tx_info is in skb */
  69
  70 struct rtl8187_tx_hdr {
  71         __le32 flags;
  72         __le16 rts_duration;
  73         __le16 len;
  74         __le32 retry;
  75 } __packed;
  76
  77 struct rtl8187b_tx_hdr {
  78         __le32 flags;
  79         __le16 rts_duration;
  80         __le16 len;
  81         __le32 unused_1;
  82         __le16 unused_2;
  83         __le16 tx_duration;
  84         __le32 unused_3;
  85         __le32 retry;
  86         __le32 unused_4[2];
  87 } __packed;
  88
  89 enum {
  90         DEVICE_RTL8187,
  91         DEVICE_RTL8187B
  92 };
  93
  94 struct rtl8187_vif {
  95         struct ieee80211_hw *dev;
  96
  97         /* beaconing */
  98         struct delayed_work beacon_work;
  99         bool enable_beacon;
 100 };
 101
 102 struct rtl8187_priv {
 103         /* common between rtl818x drivers */
 104         struct rtl818x_csr *map;
 105         const struct rtl818x_rf_ops *rf;
 106         struct ieee80211_vif *vif;
 107
 108         /* The mutex protects the TX loopback state.
 109          * Any attempt to set channels concurrently locks the device.
 110          */
 111         struct mutex conf_mutex;
 112
 113         /* rtl8187 specific */
 114         struct ieee80211_channel channels[14];
 115         struct ieee80211_rate rates[12];
 116         struct ieee80211_supported_band band;
 117         struct usb_device *udev;
 118         u32 rx_conf;
 119         struct usb_anchor anchored;
 120         struct delayed_work work;
 121         struct ieee80211_hw *dev;
 122 #ifdef CONFIG_RTL8187_LEDS
 123         struct rtl8187_led led_radio;
 124         struct rtl8187_led led_tx;
 125         struct rtl8187_led led_rx;
 126         struct delayed_work led_on;
 127         struct delayed_work led_off;
 128 #endif
 129         u16 txpwr_base;
 130         u8 asic_rev;
 131         u8 is_rtl8187b;
 132         enum {
 133                 RTL8187BvB,
 134                 RTL8187BvD,
 135                 RTL8187BvE
 136         } hw_rev;
 137         struct sk_buff_head rx_queue;
 138         u8 signal;
 139         u8 noise;
 140         u8 slot_time;
 141         u8 aifsn[4];
 142         u8 rfkill_mask;
 143         struct {
 144                 union {
 145                         __le64 buf;
 146                         u8 dummy1[L1_CACHE_BYTES];
 147                 } ____cacheline_aligned;
 148                 struct sk_buff_head queue;
 149         } b_tx_status; /* This queue is used by both -b and non-b devices */
 150         struct mutex io_mutex;
 151         union {
 152                 u8 bits8;
 153                 __le16 bits16;
 154                 __le32 bits32;
 155                 u8 dummy2[L1_CACHE_BYTES];
 156         } *io_dmabuf ____cacheline_aligned;
 157         bool rfkill_off;
 158         u16 seqno;
 159 };
 160
 161 void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data);
 162
 163 static inline u8 rtl818x_ioread8_idx(struct rtl8187_priv *priv,
 164                                      u8 *addr, u8 idx)
 165 {
 166         u8 val;
 167
 168         mutex_lock(&priv->io_mutex);
 169         usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
 170                         RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
 171                         (unsigned long)addr, idx & 0x03,
 172                         &priv->io_dmabuf->bits8, sizeof(val), HZ / 2);
 173
 174         val = priv->io_dmabuf->bits8;
 175         mutex_unlock(&priv->io_mutex);
 176
 177         return val;
 178 }
 179
 180 static inline u8 rtl818x_ioread8(struct rtl8187_priv *priv, u8 *addr)
 181 {
 182         return rtl818x_ioread8_idx(priv, addr, 0);
 183 }
 184
 185 static inline u16 rtl818x_ioread16_idx(struct rtl8187_priv *priv,
 186                                        __le16 *addr, u8 idx)
 187 {
 188         __le16 val;
 189
 190         mutex_lock(&priv->io_mutex);
 191         usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
 192                         RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
 193                         (unsigned long)addr, idx & 0x03,
 194                         &priv->io_dmabuf->bits16, sizeof(val), HZ / 2);
 195
 196         val = priv->io_dmabuf->bits16;
 197         mutex_unlock(&priv->io_mutex);
 198
 199         return le16_to_cpu(val);
 200 }
 201
 202 static inline u16 rtl818x_ioread16(struct rtl8187_priv *priv, __le16 *addr)
 203 {
 204         return rtl818x_ioread16_idx(priv, addr, 0);
 205 }
 206
 207 static inline u32 rtl818x_ioread32_idx(struct rtl8187_priv *priv,
 208                                        __le32 *addr, u8 idx)
 209 {
 210         __le32 val;
 211
 212         mutex_lock(&priv->io_mutex);
 213         usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
 214                         RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
 215                         (unsigned long)addr, idx & 0x03,
 216                         &priv->io_dmabuf->bits32, sizeof(val), HZ / 2);
 217
 218         val = priv->io_dmabuf->bits32;
 219         mutex_unlock(&priv->io_mutex);
 220
 221         return le32_to_cpu(val);
 222 }
 223
 224 static inline u32 rtl818x_ioread32(struct rtl8187_priv *priv, __le32 *addr)
 225 {
 226         return rtl818x_ioread32_idx(priv, addr, 0);
 227 }
 228
 229 static inline void rtl818x_iowrite8_idx(struct rtl8187_priv *priv,
 230                                         u8 *addr, u8 val, u8 idx)
 231 {
 232         mutex_lock(&priv->io_mutex);
 233
 234         priv->io_dmabuf->bits8 = val;
 235         usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
 236                         RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
 237                         (unsigned long)addr, idx & 0x03,
 238                         &priv->io_dmabuf->bits8, sizeof(val), HZ / 2);
 239
 240         mutex_unlock(&priv->io_mutex);
 241 }
 242
 243 static inline void rtl818x_iowrite8(struct rtl8187_priv *priv, u8 *addr, u8 val)
 244 {
 245         rtl818x_iowrite8_idx(priv, addr, val, 0);
 246 }
 247
 248 static inline void rtl818x_iowrite16_idx(struct rtl8187_priv *priv,
 249                                          __le16 *addr, u16 val, u8 idx)
 250 {
 251         mutex_lock(&priv->io_mutex);
 252
 253         priv->io_dmabuf->bits16 = cpu_to_le16(val);
 254         usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
 255                         RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
 256                         (unsigned long)addr, idx & 0x03,
 257                         &priv->io_dmabuf->bits16, sizeof(val), HZ / 2);
 258
 259         mutex_unlock(&priv->io_mutex);
 260 }
 261
 262 static inline void rtl818x_iowrite16(struct rtl8187_priv *priv, __le16 *addr,
 263                                      u16 val)
 264 {
 265         rtl818x_iowrite16_idx(priv, addr, val, 0);
 266 }
 267
 268 static inline void rtl818x_iowrite32_idx(struct rtl8187_priv *priv,
 269                                          __le32 *addr, u32 val, u8 idx)
 270 {
 271         mutex_lock(&priv->io_mutex);
 272
 273         priv->io_dmabuf->bits32 = cpu_to_le32(val);
 274         usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
 275                         RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
 276                         (unsigned long)addr, idx & 0x03,
 277                         &priv->io_dmabuf->bits32, sizeof(val), HZ / 2);
 278
 279         mutex_unlock(&priv->io_mutex);
 280 }
 281
 282 static inline void rtl818x_iowrite32(struct rtl8187_priv *priv, __le32 *addr,
 283                                      u32 val)
 284 {
 285         rtl818x_iowrite32_idx(priv, addr, val, 0);
 286 }
 287
 288 #endif /* RTL8187_H */