xref: /linux/drivers/net/wireless/intersil/p54/p54usb.h (revision 75bf465f0bc33e9b776a46d6a1b9b990f5fb7c37)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 #ifndef P54USB_H
3 #define P54USB_H
4 
5 /*
6  * Defines for USB based mac80211 Prism54 driver
7  *
8  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
9  *
10  * Based on the islsm (softmac prism54) driver, which is:
11  * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
12  */
13 
14 /* for isl3886 register definitions used on ver 1 devices */
15 #include "p54pci.h"
16 #include <linux/usb/net2280.h>
17 
18 /* pci */
19 #define NET2280_BASE		0x10000000
20 #define NET2280_BASE2		0x20000000
21 
22 /* gpio */
23 #define P54U_BRG_POWER_UP	(1 << GPIO0_DATA)
24 #define P54U_BRG_POWER_DOWN	(1 << GPIO1_DATA)
25 
26 /* devinit */
27 #define NET2280_CLK_4Mhz	(15 << LOCAL_CLOCK_FREQUENCY)
28 #define NET2280_CLK_30Mhz	(2 << LOCAL_CLOCK_FREQUENCY)
29 #define NET2280_CLK_60Mhz	(1 << LOCAL_CLOCK_FREQUENCY)
30 #define NET2280_CLK_STOP	(0 << LOCAL_CLOCK_FREQUENCY)
31 #define NET2280_PCI_ENABLE	(1 << PCI_ENABLE)
32 #define NET2280_PCI_SOFT_RESET	(1 << PCI_SOFT_RESET)
33 
34 /* endpoints */
35 #define NET2280_CLEAR_NAK_OUT_PACKETS_MODE	(1 << CLEAR_NAK_OUT_PACKETS_MODE)
36 #define NET2280_FIFO_FLUSH			(1 << FIFO_FLUSH)
37 
38 /* irq */
39 #define NET2280_USB_INTERRUPT_ENABLE		(1 << USB_INTERRUPT_ENABLE)
40 #define NET2280_PCI_INTA_INTERRUPT		(1 << PCI_INTA_INTERRUPT)
41 #define NET2280_PCI_INTA_INTERRUPT_ENABLE	(1 << PCI_INTA_INTERRUPT_ENABLE)
42 
43 /* registers */
44 #define NET2280_DEVINIT		0x00
45 #define NET2280_USBIRQENB1	0x24
46 #define NET2280_IRQSTAT1	0x2c
47 #define NET2280_FIFOCTL         0x38
48 #define NET2280_GPIOCTL		0x50
49 #define NET2280_RELNUM		0x88
50 #define NET2280_EPA_RSP		0x324
51 #define NET2280_EPA_STAT	0x32c
52 #define NET2280_EPB_STAT	0x34c
53 #define NET2280_EPC_RSP		0x364
54 #define NET2280_EPC_STAT	0x36c
55 #define NET2280_EPD_STAT	0x38c
56 
57 #define NET2280_EPA_CFG     0x320
58 #define NET2280_EPB_CFG     0x340
59 #define NET2280_EPC_CFG     0x360
60 #define NET2280_EPD_CFG     0x380
61 #define NET2280_EPE_CFG     0x3A0
62 #define NET2280_EPF_CFG     0x3C0
63 #define P54U_DEV_BASE 0x40000000
64 
65 struct net2280_tx_hdr {
66 	__le32 device_addr;
67 	__le16 len;
68 	__le16 follower;	/* ? */
69 	u8 padding[8];
70 } __packed;
71 
72 struct lm87_tx_hdr {
73 	__le32 device_addr;
74 	__le32 chksum;
75 } __packed;
76 
77 /* Some flags for the isl hardware registers controlling DMA inside the
78  * chip */
79 #define ISL38XX_DMA_STATUS_DONE			0x00000001
80 #define ISL38XX_DMA_STATUS_READY		0x00000002
81 #define NET2280_EPA_FIFO_PCI_ADDR		0x20000000
82 #define ISL38XX_DMA_MASTER_CONTROL_TRIGGER	0x00000004
83 
84 enum net2280_op_type {
85 	NET2280_BRG_U32		= 0x001F,
86 	NET2280_BRG_CFG_U32	= 0x000F,
87 	NET2280_BRG_CFG_U16	= 0x0003,
88 	NET2280_DEV_U32		= 0x080F,
89 	NET2280_DEV_CFG_U32	= 0x088F,
90 	NET2280_DEV_CFG_U16	= 0x0883
91 };
92 
93 struct net2280_reg_write {
94 	__le16 port;
95 	__le32 addr;
96 	__le32 val;
97 } __packed;
98 
99 struct net2280_reg_read {
100 	__le16 port;
101 	__le32 addr;
102 } __packed;
103 
104 #define P54U_FW_BLOCK 2048
105 
106 #define X2_SIGNATURE "x2  "
107 #define X2_SIGNATURE_SIZE 4
108 
109 struct x2_header {
110 	u8 signature[X2_SIGNATURE_SIZE];
111 	__le32 fw_load_addr;
112 	__le32 fw_length;
113 	__le32 crc;
114 } __packed;
115 
116 /* pipes 3 and 4 are not used by the driver */
117 #define P54U_PIPE_NUMBER 9
118 
119 enum p54u_pipe_addr {
120         P54U_PIPE_DATA = 0x01,
121         P54U_PIPE_MGMT = 0x02,
122         P54U_PIPE_3 = 0x03,
123         P54U_PIPE_4 = 0x04,
124         P54U_PIPE_BRG = 0x0d,
125         P54U_PIPE_DEV = 0x0e,
126         P54U_PIPE_INT = 0x0f
127 };
128 
129 struct p54u_rx_info {
130 	struct urb *urb;
131 	struct ieee80211_hw *dev;
132 };
133 
134 enum p54u_hw_type {
135 	P54U_INVALID_HW,
136 	P54U_NET2280,
137 	P54U_3887,
138 
139 	/* keep last */
140 	__NUM_P54U_HWTYPES,
141 };
142 
143 struct p54u_priv {
144 	struct p54_common common;
145 	struct usb_device *udev;
146 	struct usb_interface *intf;
147 	int (*upload_fw)(struct ieee80211_hw *dev);
148 
149 	enum p54u_hw_type hw_type;
150 	spinlock_t lock;
151 	struct sk_buff_head rx_queue;
152 	struct usb_anchor submitted;
153 	const struct firmware *fw;
154 
155 	/* asynchronous firmware callback */
156 	struct completion fw_wait_load;
157 };
158 
159 #endif /* P54USB_H */
160