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105 lines
2.7 KiB
105 lines
2.7 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* include/linux/mfd/viperboard.h |
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* |
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* Nano River Technologies viperboard definitions |
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* |
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* (C) 2012 by Lemonage GmbH |
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* Author: Lars Poeschel <[email protected]> |
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* All rights reserved. |
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*/ |
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#ifndef __MFD_VIPERBOARD_H__ |
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#define __MFD_VIPERBOARD_H__ |
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#include <linux/types.h> |
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#include <linux/usb.h> |
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#define VPRBRD_EP_OUT 0x02 |
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#define VPRBRD_EP_IN 0x86 |
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#define VPRBRD_I2C_MSG_LEN 512 /* max length of a msg on USB level */ |
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#define VPRBRD_I2C_FREQ_6MHZ 1 /* 6 MBit/s */ |
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#define VPRBRD_I2C_FREQ_3MHZ 2 /* 3 MBit/s */ |
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#define VPRBRD_I2C_FREQ_1MHZ 3 /* 1 MBit/s */ |
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#define VPRBRD_I2C_FREQ_FAST 4 /* 400 kbit/s */ |
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#define VPRBRD_I2C_FREQ_400KHZ VPRBRD_I2C_FREQ_FAST |
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#define VPRBRD_I2C_FREQ_200KHZ 5 /* 200 kbit/s */ |
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#define VPRBRD_I2C_FREQ_STD 6 /* 100 kbit/s */ |
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#define VPRBRD_I2C_FREQ_100KHZ VPRBRD_I2C_FREQ_STD |
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#define VPRBRD_I2C_FREQ_10KHZ 7 /* 10 kbit/s */ |
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#define VPRBRD_I2C_CMD_WRITE 0x00 |
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#define VPRBRD_I2C_CMD_READ 0x01 |
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#define VPRBRD_I2C_CMD_ADDR 0x02 |
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#define VPRBRD_USB_TYPE_OUT 0x40 |
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#define VPRBRD_USB_TYPE_IN 0xc0 |
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#define VPRBRD_USB_TIMEOUT_MS 100 |
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#define VPRBRD_USB_REQUEST_I2C_FREQ 0xe6 |
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#define VPRBRD_USB_REQUEST_I2C 0xe9 |
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#define VPRBRD_USB_REQUEST_MAJOR 0xea |
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#define VPRBRD_USB_REQUEST_MINOR 0xeb |
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#define VPRBRD_USB_REQUEST_ADC 0xec |
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#define VPRBRD_USB_REQUEST_GPIOA 0xed |
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#define VPRBRD_USB_REQUEST_GPIOB 0xdd |
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struct vprbrd_i2c_write_hdr { |
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u8 cmd; |
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u16 addr; |
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u8 len1; |
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u8 len2; |
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u8 last; |
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u8 chan; |
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u16 spi; |
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} __packed; |
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struct vprbrd_i2c_read_hdr { |
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u8 cmd; |
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u16 addr; |
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u8 len0; |
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u8 len1; |
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u8 len2; |
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u8 len3; |
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u8 len4; |
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u8 len5; |
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u16 tf1; /* transfer 1 length */ |
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u16 tf2; /* transfer 2 length */ |
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} __packed; |
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struct vprbrd_i2c_status { |
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u8 unknown[11]; |
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u8 status; |
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} __packed; |
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struct vprbrd_i2c_write_msg { |
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struct vprbrd_i2c_write_hdr header; |
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u8 data[VPRBRD_I2C_MSG_LEN |
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- sizeof(struct vprbrd_i2c_write_hdr)]; |
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} __packed; |
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struct vprbrd_i2c_read_msg { |
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struct vprbrd_i2c_read_hdr header; |
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u8 data[VPRBRD_I2C_MSG_LEN |
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- sizeof(struct vprbrd_i2c_read_hdr)]; |
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} __packed; |
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struct vprbrd_i2c_addr_msg { |
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u8 cmd; |
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u8 addr; |
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u8 unknown1; |
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u16 len; |
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u8 unknown2; |
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u8 unknown3; |
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} __packed; |
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/* Structure to hold all device specific stuff */ |
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struct vprbrd { |
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struct usb_device *usb_dev; /* the usb device for this device */ |
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struct mutex lock; |
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u8 buf[sizeof(struct vprbrd_i2c_write_msg)]; |
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struct platform_device pdev; |
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}; |
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#endif /* __MFD_VIPERBOARD_H__ */
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