2874c5fd28
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
106 lines
2.7 KiB
C
106 lines
2.7 KiB
C
/* 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 <poeschel@lemonage.de>
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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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