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21#ifndef _ZD_USB_H
22#define _ZD_USB_H
23
24#include <linux/completion.h>
25#include <linux/netdevice.h>
26#include <linux/spinlock.h>
27#include <linux/skbuff.h>
28#include <linux/usb.h>
29
30#include "zd_def.h"
31
32#define ZD_USB_TX_HIGH 5
33#define ZD_USB_TX_LOW 2
34
35enum devicetype {
36 DEVICE_ZD1211 = 0,
37 DEVICE_ZD1211B = 1,
38 DEVICE_INSTALLER = 2,
39};
40
41enum endpoints {
42 EP_CTRL = 0,
43 EP_DATA_OUT = 1,
44 EP_DATA_IN = 2,
45 EP_INT_IN = 3,
46 EP_REGS_OUT = 4,
47};
48
49enum {
50 USB_MAX_TRANSFER_SIZE = 4096,
51
52
53
54
55 USB_MAX_RX_SIZE = 4800,
56 USB_MAX_IOWRITE16_COUNT = 15,
57 USB_MAX_IOWRITE32_COUNT = USB_MAX_IOWRITE16_COUNT/2,
58 USB_MAX_IOREAD16_COUNT = 15,
59 USB_MAX_IOREAD32_COUNT = USB_MAX_IOREAD16_COUNT/2,
60 USB_MIN_RFWRITE_BIT_COUNT = 16,
61 USB_MAX_RFWRITE_BIT_COUNT = 28,
62 USB_MAX_EP_INT_BUFFER = 64,
63 USB_ZD1211B_BCD_DEVICE = 0x4810,
64};
65
66enum control_requests {
67 USB_REQ_WRITE_REGS = 0x21,
68 USB_REQ_READ_REGS = 0x22,
69 USB_REQ_WRITE_RF = 0x23,
70 USB_REQ_PROG_FLASH = 0x24,
71 USB_REQ_EEPROM_START = 0x0128,
72 USB_REQ_EEPROM_MID = 0x28,
73 USB_REQ_EEPROM_END = 0x0228,
74 USB_REQ_FIRMWARE_DOWNLOAD = 0x30,
75 USB_REQ_FIRMWARE_CONFIRM = 0x31,
76 USB_REQ_FIRMWARE_READ_DATA = 0x32,
77};
78
79struct usb_req_read_regs {
80 __le16 id;
81 __le16 addr[0];
82} __packed;
83
84struct reg_data {
85 __le16 addr;
86 __le16 value;
87} __packed;
88
89struct usb_req_write_regs {
90 __le16 id;
91 struct reg_data reg_writes[0];
92} __packed;
93
94enum {
95 RF_IF_LE = 0x02,
96 RF_CLK = 0x04,
97 RF_DATA = 0x08,
98};
99
100struct usb_req_rfwrite {
101 __le16 id;
102 __le16 value;
103
104
105 __le16 bits;
106
107 __le16 bit_values[0];
108
109} __packed;
110
111
112
113enum usb_int_id {
114 USB_INT_TYPE = 0x01,
115 USB_INT_ID_REGS = 0x90,
116 USB_INT_ID_RETRY_FAILED = 0xa0,
117};
118
119enum usb_int_flags {
120 USB_INT_READ_REGS_EN = 0x01,
121};
122
123struct usb_int_header {
124 u8 type;
125 u8 id;
126} __packed;
127
128struct usb_int_regs {
129 struct usb_int_header hdr;
130 struct reg_data regs[0];
131} __packed;
132
133struct usb_int_retry_fail {
134 struct usb_int_header hdr;
135 u8 new_rate;
136 u8 _dummy;
137 u8 addr[ETH_ALEN];
138 u8 ibss_wakeup_dest;
139} __packed;
140
141struct read_regs_int {
142 struct completion completion;
143
144
145
146 u8 buffer[USB_MAX_EP_INT_BUFFER];
147 int length;
148 __le16 cr_int_addr;
149};
150
151struct zd_ioreq16 {
152 zd_addr_t addr;
153 u16 value;
154};
155
156struct zd_ioreq32 {
157 zd_addr_t addr;
158 u32 value;
159};
160
161struct zd_usb_interrupt {
162 struct read_regs_int read_regs;
163 spinlock_t lock;
164 struct urb *urb;
165 int interval;
166 u8 read_regs_enabled:1;
167};
168
169static inline struct usb_int_regs *get_read_regs(struct zd_usb_interrupt *intr)
170{
171 return (struct usb_int_regs *)intr->read_regs.buffer;
172}
173
174#define RX_URBS_COUNT 5
175
176struct zd_usb_rx {
177 spinlock_t lock;
178 u8 fragment[2*USB_MAX_RX_SIZE];
179 unsigned int fragment_length;
180 unsigned int usb_packet_size;
181 struct urb **urbs;
182 int urbs_count;
183};
184
185
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187
188
189
190
191
192
193
194struct zd_usb_tx {
195 spinlock_t lock;
196 struct list_head free_urb_list;
197 int submitted_urbs;
198 int enabled;
199 int stopped;
200};
201
202
203
204
205struct zd_usb {
206 struct zd_usb_interrupt intr;
207 struct zd_usb_rx rx;
208 struct zd_usb_tx tx;
209 struct usb_interface *intf;
210 u8 is_zd1211b:1, initialized:1;
211};
212
213#define zd_usb_dev(usb) (&usb->intf->dev)
214
215static inline struct usb_device *zd_usb_to_usbdev(struct zd_usb *usb)
216{
217 return interface_to_usbdev(usb->intf);
218}
219
220static inline struct ieee80211_hw *zd_intf_to_hw(struct usb_interface *intf)
221{
222 return usb_get_intfdata(intf);
223}
224
225static inline struct ieee80211_hw *zd_usb_to_hw(struct zd_usb *usb)
226{
227 return zd_intf_to_hw(usb->intf);
228}
229
230void zd_usb_init(struct zd_usb *usb, struct ieee80211_hw *hw,
231 struct usb_interface *intf);
232int zd_usb_init_hw(struct zd_usb *usb);
233void zd_usb_clear(struct zd_usb *usb);
234
235int zd_usb_scnprint_id(struct zd_usb *usb, char *buffer, size_t size);
236
237int zd_usb_enable_int(struct zd_usb *usb);
238void zd_usb_disable_int(struct zd_usb *usb);
239
240int zd_usb_enable_rx(struct zd_usb *usb);
241void zd_usb_disable_rx(struct zd_usb *usb);
242
243void zd_usb_enable_tx(struct zd_usb *usb);
244void zd_usb_disable_tx(struct zd_usb *usb);
245
246int zd_usb_tx(struct zd_usb *usb, struct sk_buff *skb);
247
248int zd_usb_ioread16v(struct zd_usb *usb, u16 *values,
249 const zd_addr_t *addresses, unsigned int count);
250
251static inline int zd_usb_ioread16(struct zd_usb *usb, u16 *value,
252 const zd_addr_t addr)
253{
254 return zd_usb_ioread16v(usb, value, (const zd_addr_t *)&addr, 1);
255}
256
257int zd_usb_iowrite16v(struct zd_usb *usb, const struct zd_ioreq16 *ioreqs,
258 unsigned int count);
259
260int zd_usb_rfwrite(struct zd_usb *usb, u32 value, u8 bits);
261
262int zd_usb_read_fw(struct zd_usb *usb, zd_addr_t addr, u8 *data, u16 len);
263
264extern struct workqueue_struct *zd_workqueue;
265
266#endif
267