1 #ifndef P54USB_H
2 #define P54USB_H
3 
4 /*
5  * Defines for USB based mac80211 Prism54 driver
6  *
7  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
8  *
9  * Based on the islsm (softmac prism54) driver, which is:
10  * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
11  *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License version 2 as
14  * published by the Free Software Foundation.
15  */
16 
17 /* for isl3886 register definitions used on ver 1 devices */
18 #include "p54pci.h"
19 #include "net2280.h"
20 
21 /* pci */
22 #define NET2280_BASE		0x10000000
23 #define NET2280_BASE2		0x20000000
24 
25 /* gpio */
26 #define P54U_BRG_POWER_UP	(1 << GPIO0_DATA)
27 #define P54U_BRG_POWER_DOWN	(1 << GPIO1_DATA)
28 
29 /* devinit */
30 #define NET2280_CLK_4Mhz	(15 << LOCAL_CLOCK_FREQUENCY)
31 #define NET2280_CLK_30Mhz	(2 << LOCAL_CLOCK_FREQUENCY)
32 #define NET2280_CLK_60Mhz	(1 << LOCAL_CLOCK_FREQUENCY)
33 #define NET2280_CLK_STOP	(0 << LOCAL_CLOCK_FREQUENCY)
34 #define NET2280_PCI_ENABLE	(1 << PCI_ENABLE)
35 #define NET2280_PCI_SOFT_RESET	(1 << PCI_SOFT_RESET)
36 
37 /* endpoints */
38 #define NET2280_CLEAR_NAK_OUT_PACKETS_MODE	(1 << CLEAR_NAK_OUT_PACKETS_MODE)
39 #define NET2280_FIFO_FLUSH			(1 << FIFO_FLUSH)
40 
41 /* irq */
42 #define NET2280_USB_INTERRUPT_ENABLE		(1 << USB_INTERRUPT_ENABLE)
43 #define NET2280_PCI_INTA_INTERRUPT		(1 << PCI_INTA_INTERRUPT)
44 #define NET2280_PCI_INTA_INTERRUPT_ENABLE	(1 << PCI_INTA_INTERRUPT_ENABLE)
45 
46 /* registers */
47 #define NET2280_DEVINIT		0x00
48 #define NET2280_USBIRQENB1	0x24
49 #define NET2280_IRQSTAT1	0x2c
50 #define NET2280_FIFOCTL         0x38
51 #define NET2280_GPIOCTL		0x50
52 #define NET2280_RELNUM		0x88
53 #define NET2280_EPA_RSP		0x324
54 #define NET2280_EPA_STAT	0x32c
55 #define NET2280_EPB_STAT	0x34c
56 #define NET2280_EPC_RSP		0x364
57 #define NET2280_EPC_STAT	0x36c
58 #define NET2280_EPD_STAT	0x38c
59 
60 #define NET2280_EPA_CFG     0x320
61 #define NET2280_EPB_CFG     0x340
62 #define NET2280_EPC_CFG     0x360
63 #define NET2280_EPD_CFG     0x380
64 #define NET2280_EPE_CFG     0x3A0
65 #define NET2280_EPF_CFG     0x3C0
66 #define P54U_DEV_BASE 0x40000000
67 
68 struct net2280_tx_hdr {
69 	__le32 device_addr;
70 	__le16 len;
71 	__le16 follower;	/* ? */
72 	u8 padding[8];
73 } __packed;
74 
75 struct lm87_tx_hdr {
76 	__le32 device_addr;
77 	__le32 chksum;
78 } __packed;
79 
80 /* Some flags for the isl hardware registers controlling DMA inside the
81  * chip */
82 #define ISL38XX_DMA_STATUS_DONE			0x00000001
83 #define ISL38XX_DMA_STATUS_READY		0x00000002
84 #define NET2280_EPA_FIFO_PCI_ADDR		0x20000000
85 #define ISL38XX_DMA_MASTER_CONTROL_TRIGGER	0x00000004
86 
87 enum net2280_op_type {
88 	NET2280_BRG_U32		= 0x001F,
89 	NET2280_BRG_CFG_U32	= 0x000F,
90 	NET2280_BRG_CFG_U16	= 0x0003,
91 	NET2280_DEV_U32		= 0x080F,
92 	NET2280_DEV_CFG_U32	= 0x088F,
93 	NET2280_DEV_CFG_U16	= 0x0883
94 };
95 
96 #define P54U_FW_BLOCK 2048
97 
98 #define X2_SIGNATURE "x2  "
99 #define X2_SIGNATURE_SIZE 4
100 
101 struct x2_header {
102 	u8 signature[X2_SIGNATURE_SIZE];
103 	__le32 fw_load_addr;
104 	__le32 fw_length;
105 	__le32 crc;
106 } __packed;
107 
108 /* pipes 3 and 4 are not used by the driver */
109 #define P54U_PIPE_NUMBER 9
110 
111 enum p54u_pipe_addr {
112         P54U_PIPE_DATA = 0x01,
113         P54U_PIPE_MGMT = 0x02,
114         P54U_PIPE_3 = 0x03,
115         P54U_PIPE_4 = 0x04,
116         P54U_PIPE_BRG = 0x0d,
117         P54U_PIPE_DEV = 0x0e,
118         P54U_PIPE_INT = 0x0f
119 };
120 
121 struct p54u_rx_info {
122 	struct urb *urb;
123 	struct ieee80211_hw *dev;
124 };
125 
126 enum p54u_hw_type {
127 	P54U_INVALID_HW,
128 	P54U_NET2280,
129 	P54U_3887,
130 
131 	/* keep last */
132 	__NUM_P54U_HWTYPES,
133 };
134 
135 struct p54u_priv {
136 	struct p54_common common;
137 	struct usb_device *udev;
138 	struct usb_interface *intf;
139 	int (*upload_fw)(struct ieee80211_hw *dev);
140 
141 	enum p54u_hw_type hw_type;
142 	spinlock_t lock;
143 	struct sk_buff_head rx_queue;
144 	struct usb_anchor submitted;
145 	const struct firmware *fw;
146 };
147 
148 #endif /* P54USB_H */
149