mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 14:43:58 +08:00
ffd8a6e7a7
This adds the mfd cell to use the adc part of the Nano River Technologies viperboard. Signed-off-by: Lars Poeschel <poeschel@lemonage.de> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
111 lines
3.0 KiB
C
111 lines
3.0 KiB
C
/*
|
|
* include/linux/mfd/viperboard.h
|
|
*
|
|
* Nano River Technologies viperboard definitions
|
|
*
|
|
* (C) 2012 by Lemonage GmbH
|
|
* Author: Lars Poeschel <poeschel@lemonage.de>
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#ifndef __MFD_VIPERBOARD_H__
|
|
#define __MFD_VIPERBOARD_H__
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/usb.h>
|
|
|
|
#define VPRBRD_EP_OUT 0x02
|
|
#define VPRBRD_EP_IN 0x86
|
|
|
|
#define VPRBRD_I2C_MSG_LEN 512 /* max length of a msg on USB level */
|
|
|
|
#define VPRBRD_I2C_FREQ_6MHZ 1 /* 6 MBit/s */
|
|
#define VPRBRD_I2C_FREQ_3MHZ 2 /* 3 MBit/s */
|
|
#define VPRBRD_I2C_FREQ_1MHZ 3 /* 1 MBit/s */
|
|
#define VPRBRD_I2C_FREQ_FAST 4 /* 400 kbit/s */
|
|
#define VPRBRD_I2C_FREQ_400KHZ VPRBRD_I2C_FREQ_FAST
|
|
#define VPRBRD_I2C_FREQ_200KHZ 5 /* 200 kbit/s */
|
|
#define VPRBRD_I2C_FREQ_STD 6 /* 100 kbit/s */
|
|
#define VPRBRD_I2C_FREQ_100KHZ VPRBRD_I2C_FREQ_STD
|
|
#define VPRBRD_I2C_FREQ_10KHZ 7 /* 10 kbit/s */
|
|
|
|
#define VPRBRD_I2C_CMD_WRITE 0x00
|
|
#define VPRBRD_I2C_CMD_READ 0x01
|
|
#define VPRBRD_I2C_CMD_ADDR 0x02
|
|
|
|
#define VPRBRD_USB_TYPE_OUT 0x40
|
|
#define VPRBRD_USB_TYPE_IN 0xc0
|
|
#define VPRBRD_USB_TIMEOUT_MS 100
|
|
#define VPRBRD_USB_REQUEST_I2C_FREQ 0xe6
|
|
#define VPRBRD_USB_REQUEST_I2C 0xe9
|
|
#define VPRBRD_USB_REQUEST_MAJOR 0xea
|
|
#define VPRBRD_USB_REQUEST_MINOR 0xeb
|
|
#define VPRBRD_USB_REQUEST_ADC 0xec
|
|
#define VPRBRD_USB_REQUEST_GPIOA 0xed
|
|
#define VPRBRD_USB_REQUEST_GPIOB 0xdd
|
|
|
|
struct vprbrd_i2c_write_hdr {
|
|
u8 cmd;
|
|
u16 addr;
|
|
u8 len1;
|
|
u8 len2;
|
|
u8 last;
|
|
u8 chan;
|
|
u16 spi;
|
|
} __packed;
|
|
|
|
struct vprbrd_i2c_read_hdr {
|
|
u8 cmd;
|
|
u16 addr;
|
|
u8 len0;
|
|
u8 len1;
|
|
u8 len2;
|
|
u8 len3;
|
|
u8 len4;
|
|
u8 len5;
|
|
u16 tf1; /* transfer 1 length */
|
|
u16 tf2; /* transfer 2 length */
|
|
} __packed;
|
|
|
|
struct vprbrd_i2c_status {
|
|
u8 unknown[11];
|
|
u8 status;
|
|
} __packed;
|
|
|
|
struct vprbrd_i2c_write_msg {
|
|
struct vprbrd_i2c_write_hdr header;
|
|
u8 data[VPRBRD_I2C_MSG_LEN
|
|
- sizeof(struct vprbrd_i2c_write_hdr)];
|
|
} __packed;
|
|
|
|
struct vprbrd_i2c_read_msg {
|
|
struct vprbrd_i2c_read_hdr header;
|
|
u8 data[VPRBRD_I2C_MSG_LEN
|
|
- sizeof(struct vprbrd_i2c_read_hdr)];
|
|
} __packed;
|
|
|
|
struct vprbrd_i2c_addr_msg {
|
|
u8 cmd;
|
|
u8 addr;
|
|
u8 unknown1;
|
|
u16 len;
|
|
u8 unknown2;
|
|
u8 unknown3;
|
|
} __packed;
|
|
|
|
/* Structure to hold all device specific stuff */
|
|
struct vprbrd {
|
|
struct usb_device *usb_dev; /* the usb device for this device */
|
|
struct mutex lock;
|
|
u8 buf[sizeof(struct vprbrd_i2c_write_msg)];
|
|
struct platform_device pdev;
|
|
};
|
|
|
|
#endif /* __MFD_VIPERBOARD_H__ */
|