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 <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
rtl818x_ioread8_idx(struct rtl8187_priv * priv,u8 * addr,u8 idx)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
rtl818x_ioread8(struct rtl8187_priv * priv,u8 * addr)180 static inline u8 rtl818x_ioread8(struct rtl8187_priv *priv, u8 *addr)
181 {
182 return rtl818x_ioread8_idx(priv, addr, 0);
183 }
184
rtl818x_ioread16_idx(struct rtl8187_priv * priv,__le16 * addr,u8 idx)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
rtl818x_ioread16(struct rtl8187_priv * priv,__le16 * addr)202 static inline u16 rtl818x_ioread16(struct rtl8187_priv *priv, __le16 *addr)
203 {
204 return rtl818x_ioread16_idx(priv, addr, 0);
205 }
206
rtl818x_ioread32_idx(struct rtl8187_priv * priv,__le32 * addr,u8 idx)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
rtl818x_ioread32(struct rtl8187_priv * priv,__le32 * addr)224 static inline u32 rtl818x_ioread32(struct rtl8187_priv *priv, __le32 *addr)
225 {
226 return rtl818x_ioread32_idx(priv, addr, 0);
227 }
228
rtl818x_iowrite8_idx(struct rtl8187_priv * priv,u8 * addr,u8 val,u8 idx)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
rtl818x_iowrite8(struct rtl8187_priv * priv,u8 * addr,u8 val)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
rtl818x_iowrite16_idx(struct rtl8187_priv * priv,__le16 * addr,u16 val,u8 idx)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
rtl818x_iowrite16(struct rtl8187_priv * priv,__le16 * addr,u16 val)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
rtl818x_iowrite32_idx(struct rtl8187_priv * priv,__le32 * addr,u32 val,u8 idx)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
rtl818x_iowrite32(struct rtl8187_priv * priv,__le32 * addr,u32 val)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 */
289