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f01312d8 LP |
1 | /* |
2 | * include/linux/mfd/viperboard.h | |
3 | * | |
4 | * Nano River Technologies viperboard definitions | |
5 | * | |
6 | * (C) 2012 by Lemonage GmbH | |
7 | * Author: Lars Poeschel <poeschel@lemonage.de> | |
8 | * All rights reserved. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the | |
12 | * Free Software Foundation; either version 2 of the License, or (at your | |
13 | * option) any later version. | |
14 | * | |
15 | */ | |
16 | ||
17 | #ifndef __MFD_VIPERBOARD_H__ | |
18 | #define __MFD_VIPERBOARD_H__ | |
19 | ||
20 | #include <linux/types.h> | |
21 | #include <linux/usb.h> | |
22 | ||
23 | #define VPRBRD_EP_OUT 0x02 | |
24 | #define VPRBRD_EP_IN 0x86 | |
25 | ||
26 | #define VPRBRD_I2C_MSG_LEN 512 /* max length of a msg on USB level */ | |
27 | ||
28 | #define VPRBRD_I2C_FREQ_6MHZ 1 /* 6 MBit/s */ | |
29 | #define VPRBRD_I2C_FREQ_3MHZ 2 /* 3 MBit/s */ | |
30 | #define VPRBRD_I2C_FREQ_1MHZ 3 /* 1 MBit/s */ | |
31 | #define VPRBRD_I2C_FREQ_FAST 4 /* 400 kbit/s */ | |
32 | #define VPRBRD_I2C_FREQ_400KHZ VPRBRD_I2C_FREQ_FAST | |
33 | #define VPRBRD_I2C_FREQ_200KHZ 5 /* 200 kbit/s */ | |
34 | #define VPRBRD_I2C_FREQ_STD 6 /* 100 kbit/s */ | |
35 | #define VPRBRD_I2C_FREQ_100KHZ VPRBRD_I2C_FREQ_STD | |
36 | #define VPRBRD_I2C_FREQ_10KHZ 7 /* 10 kbit/s */ | |
37 | ||
38 | #define VPRBRD_I2C_CMD_WRITE 0x00 | |
39 | #define VPRBRD_I2C_CMD_READ 0x01 | |
40 | #define VPRBRD_I2C_CMD_ADDR 0x02 | |
41 | ||
42 | #define VPRBRD_USB_TYPE_OUT 0x40 | |
43 | #define VPRBRD_USB_TYPE_IN 0xc0 | |
44 | #define VPRBRD_USB_TIMEOUT_MS 100 | |
174a13aa LP |
45 | #define VPRBRD_USB_REQUEST_I2C_FREQ 0xe6 |
46 | #define VPRBRD_USB_REQUEST_I2C 0xe9 | |
f01312d8 LP |
47 | #define VPRBRD_USB_REQUEST_MAJOR 0xea |
48 | #define VPRBRD_USB_REQUEST_MINOR 0xeb | |
ffd8a6e7 | 49 | #define VPRBRD_USB_REQUEST_ADC 0xec |
9d5b72de LP |
50 | #define VPRBRD_USB_REQUEST_GPIOA 0xed |
51 | #define VPRBRD_USB_REQUEST_GPIOB 0xdd | |
f01312d8 LP |
52 | |
53 | struct vprbrd_i2c_write_hdr { | |
54 | u8 cmd; | |
55 | u16 addr; | |
56 | u8 len1; | |
57 | u8 len2; | |
58 | u8 last; | |
59 | u8 chan; | |
60 | u16 spi; | |
61 | } __packed; | |
62 | ||
63 | struct vprbrd_i2c_read_hdr { | |
64 | u8 cmd; | |
65 | u16 addr; | |
66 | u8 len0; | |
67 | u8 len1; | |
68 | u8 len2; | |
69 | u8 len3; | |
70 | u8 len4; | |
71 | u8 len5; | |
72 | u16 tf1; /* transfer 1 length */ | |
73 | u16 tf2; /* transfer 2 length */ | |
74 | } __packed; | |
75 | ||
76 | struct vprbrd_i2c_status { | |
77 | u8 unknown[11]; | |
78 | u8 status; | |
79 | } __packed; | |
80 | ||
81 | struct vprbrd_i2c_write_msg { | |
82 | struct vprbrd_i2c_write_hdr header; | |
83 | u8 data[VPRBRD_I2C_MSG_LEN | |
84 | - sizeof(struct vprbrd_i2c_write_hdr)]; | |
85 | } __packed; | |
86 | ||
87 | struct vprbrd_i2c_read_msg { | |
88 | struct vprbrd_i2c_read_hdr header; | |
89 | u8 data[VPRBRD_I2C_MSG_LEN | |
90 | - sizeof(struct vprbrd_i2c_read_hdr)]; | |
91 | } __packed; | |
92 | ||
93 | struct vprbrd_i2c_addr_msg { | |
94 | u8 cmd; | |
95 | u8 addr; | |
96 | u8 unknown1; | |
97 | u16 len; | |
98 | u8 unknown2; | |
99 | u8 unknown3; | |
100 | } __packed; | |
101 | ||
102 | /* Structure to hold all device specific stuff */ | |
103 | struct vprbrd { | |
104 | struct usb_device *usb_dev; /* the usb device for this device */ | |
105 | struct mutex lock; | |
106 | u8 buf[sizeof(struct vprbrd_i2c_write_msg)]; | |
107 | struct platform_device pdev; | |
108 | }; | |
109 | ||
110 | #endif /* __MFD_VIPERBOARD_H__ */ |